JP5386134B2 - Cloth frame with floor and frame scaffold - Google Patents

Description

  The present invention relates to a cloth frame with a floor used as a work floor and a passage for a frame scaffold in a construction site and the like, and a frame scaffold incorporating the floor cloth frame.

  As for frame scaffolds used in construction sites, for example, “building frame type scaffolds” in which struts or handrail frames are attached to building frames, support members and brace materials (also called diagonal materials), and the like. There is a “tightening type scaffolding” in which scaffolding members such as handrail members are tightly assembled.

  A “building frame-type scaffold” is usually formed by assembling a plurality of H-shaped or torii-shaped building frames composed of horizontal rails and vertical columns. In other words, a plurality of building frames are erected at right angles to a structure such as a building at a predetermined interval, and a plurality of building frames are installed by fixing a streak or a handrail frame between vertical columns of adjacent building frames. After making the frame self-supporting, one or two or more cloth frames with floors (also referred to as cloth plates) are bridged between the horizontal rails of adjacent building frames to form one unit of scaffolding. Next, a separately prepared building frame was erected on the building frame that had already been erected, and in the same manner, a streak and a handrail frame were attached and fixed between adjacent building frames, and then newly erected. A one-step scaffold is formed by laying one or more cloth frames with a floor on the horizontal rail of the building frame. By repeating this sequentially, the entire framework scaffolding is formed.

  An example of forming a building-frame-type frame scaffold using an H-shaped building frame (hereinafter referred to as “H frame”) as this building frame is shown in FIG. (a) is a front view, (b) is a right side view.

  The three H frames 1 are arranged at equal intervals at right angles to the building 22, and the handrail frame 10 is attached to the lock fitting 6b on the opposite side of the building between the adjacent H frames. Make them independent. Further, the handrail frame 10 is attached to the lock fitting 7b on the side opposite to the building, and the handrail frame 13 on the building side is attached to the lock fitting 7a and fixed. Thereafter, the cloth frame 11 with a floor is bridged between the horizontal rails 3 of the H frame 1 adjacent to the first stage to form a first stage scaffold. Next, the lower part of the vertical column 2 of the H frame 1 separately prepared is placed on the vertical column 2 of the first stage H frame 1 that has already been erected, and fixed with a fixing pin (not shown). Thus, the second stage H frame 1 is erected. Thereafter, in the same manner as the first stage, the handrail frame 10 is attached to the lock fittings 6b and 7b on the side opposite to the building, and the handrail frame 13 is attached and fixed to the lock fitting 7a on the building side. A cloth frame 11 with a floor is bridged on the horizontal rail 3 of the H frame 1 of the eye to form a second stage scaffold. The third stage scaffolding is assembled in the same manner as the second stage scaffolding. That is, the handrail frame 10 is attached to the opposite side of the building, the handrail frame 13 is attached and fixed to the building side, and then the cloth frame 11 with a floor is bridged on the horizontal rail 3 of the third H frame 1. To form a third stage scaffold. In this way, the frame scaffold is formed until the required number of steps is reached.

  As another example of using a building frame, FIG. 2 shows an example in which a building frame-type frame scaffold is formed using a torii-shaped building frame (hereinafter referred to as “torii frame”). (a) is a front view, (b) is a right side view.

  First, three torii frames 4 are arranged at equal intervals at right angles to the building 22, between the adjacent torii frames 4 and a streak 13 is attached to the lock fitting 8b on the opposite side of the building, and also on the building side. The first stage scaffolding is formed by attaching the strut 13 to the lock fitting 8a and allowing the first stage torii frame 4 to stand on its own. Thereafter, a floor-mounted cloth frame 11 serving as a second-stage scaffolding plate is bridged between the horizontal rails 3 at the upper part of the first-stage adjacent torii frame 4, and then the first-stage torii frame 4 already erected. The lower part of the vertical column 2 of the torii frame 4 prepared separately is placed on the vertical column 2 and fixed with a fixing pin (not shown), whereby the second stage torii frame 4 is erected. Thereafter, in the same manner as the first stage, the streak 13 is attached to the lock fitting 8b on the side opposite to the building, and the streak 13 is also attached to the lock fitting 8a on the building side, so that the second stage torii frame 4 The second stage scaffolding is formed by allowing the to stand independently. Thereafter, a floor-mounted cloth frame 11 serving as a third-stage scaffolding plate is bridged between the horizontal rails 3 on the upper side of the second-stage adjacent torii frame 4, and then the second-stage torii frame 4 already erected. The lower part of the vertical column 2 of the torii frame 4 prepared separately is placed on the vertical column 2 and fixed with a fixing pin (not shown), so that the third level torii frame 4 is erected. Thereafter, in the same manner as in the second stage, the streak 13 is attached to the lock fitting 8b on the opposite side of the building, and the strut 13 is also attached to the lock fitting 8a on the building side, and the third stage torii frame 4 A third-stage scaffolding is formed by allowing the to stand independently. In this way, the frame scaffold is formed until the required number of steps is reached.

  On the other hand, a “tightening type scaffold” is a structure in which scaffolding members such as handrail members, brace members, and brace members are attached to support members provided with a plurality of attachment members called “tops” through the tops. After these scaffold constituent members are fastened together with a wedge or the like, they are assembled by suspending one or more floored cloth frames.

  FIG. 3 shows an example of the structure of a tight-binding scaffold. (a) is a front view of a binding type scaffold, (b) is an enlarged view of the periphery of the top indicated by a circle in (a), and (c) is a right side view of the binding type scaffold.

  In the binding type scaffolding, three columns 14 are erected on the building side and on the opposite side. Each column 14 is formed by vertically adding column members 16 having a plurality of tops 20. A brace member 19 is attached between adjacent struts 14 on the building side via a top 20, and a work handrail 15 is interposed between adjacent struts 14 on the opposite side of the building via a top 20. Are attached and fastened with a wedge or the like at the top 20. Further, an arm wood 21 is attached between the building-side column 14 and the column 14 on the opposite side of the building via a frame 20, and is fastened with a wedge or the like at the frame 20. The first-stage scaffolding is formed by bridging the cloth frame 11 with a floor therebetween. The brace material 19 may be attached between the columns 14 on the opposite side of the building.

  The second stage scaffold is formed in the same manner as the first stage scaffold. If necessary, a brace member 19, a handrail member 15, and a brace member 21 are attached and tightened via a frame 20 after a separately prepared strut 14 is vertically added to the upper end of the strut 14 of the first stage scaffold. Then, it is formed by bridging the cloth frame 11 with a floor. By repeating this in sequence, a multi-stage tight scaffold is formed.

  As described above, the cloth frame with a floor is incorporated in all the frame scaffolds regardless of the building frame type scaffolding and the tight framed scaffolding, and is used as a work floor and a passage.

  The cloth frame with a floor is composed of one or two or more long main members, a grip fitting attached to both ends of the main member in the longitudinal direction, and a U-shaped beam member. The main material consists of a horizontal flooring part and a cloth part formed by bending the side surfaces of both edges. A beam material having a U-shaped cross section is attached to both ends of the long main material, and gripping metal fittings are fixed to the four corners of both ends of the long main material with rivets or the like. In addition, in order to prevent an operator from slipping when walking on a cloth frame with a floor, the upper surface of the floor material part may be embossed. Moreover, in order to prevent a flooring part from bending in the width direction, a crosspiece may be provided under the center part of the flooring part.

  As described above, the number of main materials incorporated into one cloth frame with a floor is not limited to one, and there may be two or more sheets. However, when one main material is incorporated into one cloth frame with a floor. In the case of two or more sheets, the mounting method of the U-shaped beam member and the gripping metal is different as follows.

  When one main material is incorporated in one cloth frame with a floor, one U-shaped cross-sectional beam material is fitted and attached to both ends of one long main material, And the gripping metal fittings are fixed and attached with rivets or the like at the four corners of both ends of one long main material.

  On the other hand, when there are two or more main materials to be incorporated into a single cloth frame with a floor, a long length of a plurality of main materials arranged in parallel in the horizontal direction is combined. One piece is fitted and attached to each end of the main material. The gripping metal fittings are fixed and attached with rivets or the like to the four corners of both ends of the long main material obtained by arranging a plurality of main materials in parallel in the horizontal direction.

  In other words, the number of beam members is that a total of two beams can be attached to one floor cloth frame regardless of whether the number of main members incorporated into one floor cloth frame is one or two or more. Become. In addition, the number of gripping metal fittings is that a total of four pieces can be attached to a single cloth frame with a floor, regardless of whether the main material incorporated into one cloth frame with a floor is one piece or more. Become.

  FIG. 4 shows an example of a cloth frame with a floor according to the prior art, where (a) shows an assembly drawing and (b) shows a completed drawing.

  Two main materials are incorporated in the cloth frame with a floor. The main material 30 of the cloth frame with a floor is composed of a long floor material portion 31 on the upper surface and long cloth material portions 32a and 32b formed integrally with both edge side surfaces. A long lip 33 is provided integrally with the long cloth material portions 32a and 32b on the inner side of the lower surface.

  Two such main members 30 are arranged in parallel in the horizontal direction with a slight gap therebetween, and beam members 40 having a U-shaped cross section are formed at both ends of the floor portion 31 of the two main members 30. They are fitted and attached, and joined by welding or the like. That is, the U-shaped beam member 40 is composed of an upper flange 41, a lower flange 42, and a web 43 that connects both flanges, and both end portions of the floor material portion 31 of the two main members 30 are The upper flange 41 and the lower flange 42 are fitted.

  In addition, two holes 34 for fixing the gripping metal fitting 50 with rivets or the like are formed in the vicinity of both ends of the two cloth material portions 32a located on the outer edge side. A gripping metal fitting 50 is inserted into the gap between the both ends of the cloth material portion 32 a located on the outer edge side and the both ends of the U-shaped beam material 40 and fixed by the rivets 35.

  FIG. 5 is an enlarged view of an end portion of the cloth frame with a floor according to the prior art shown in FIG. 4, (a) is a front view, (b) is a plan view, and (c) is an AA plane. A sectional view (side view) is shown respectively.

  In order to increase the rigidity of the main material of the cloth frame with a floor, grooves 36 are formed in the longitudinal direction in the vicinity of the center of the floor material portion 31 and in the vicinity of both edges, and the cloth material portions 32a and 32b The edge portion of the lip 33 provided integrally is molded into a shape bent inward to form a bent portion 37.

As described above, the two main members are arranged in parallel in the horizontal direction with a slight gap therebetween, and the U-shaped cross-shaped beam members 40 are fitted to both ends thereof, and the main member floor material between the upper flange 41 of the end portion and the beam member of the upper surface of the parts 31, and, between the lower flange 42 of the lower surface of the end portion and the beam member lip 33 of the main member, respectively, by welding W ₁ and W ₂ Be joined. Welding W ₁ and W ₂ may be a linear welding, or by welding points spaced. Next, inside the both ends of the cloth material portion 32a located on the outer edge side, the gripping metal fitting 50 is inserted into the gap between both ends of the U-shaped beam material 40, and the cloth material portion 32a located on the outer edge side. After the rivet hole 34 and the rivet hole 51 of the gripping metal are aligned, the gripping metal 50 is fixed by the rivet 35. Furthermore, between the outer surface of the metal member 50 gripping the end portion of the cloth portion 32a located on the outer edge side is joined by welding W _4. Welding W ₄ may be a linear welding, or by welding points spaced.

  Note that the gripping metal 50 has a curved portion at the tip thereof, and by attaching the inside of the curved portion on the crosspiece or arm timber of the building frame constituting the scaffold, the floor-mounted cloth frame is adjacent to the building frame. It is intended to be attached between the crosspieces of the frame or the arm lumber. Here, the gripping metal fitting 50 has a locking stopper 52, and the gripping metal fitting 50 is erroneously protruded to the lower side of the horizontal frame or arm wood of the building frame, so that the gripping metal fitting 50 is mistaken for the horizontal rail or arm wood of the building frame. You can prevent it from coming off.

  Next, as described above, the cloth frame with a floor formed in this way is used as a work floor and a passage of a frame scaffold. In the case of a tight-type scaffolding, it is bridged between adjacent arm lumbers 21. At this time, according to the width of the work floor and passage of the frame scaffold, that is, depending on the length of the horizontal rail of the building frame or the length of the arm lumber, by placing one or more floored cloth frames side by side, A working floor or passage is formed.

  In addition, the width of the cloth frame with a floor is usually used in two types of 240 mm width and 500 mm width, and they are referred to as a small anti (also referred to as a small cloth board) and a large anti (also referred to as a large cloth board), respectively. .

  In FIG. 6, two examples of the cloth frame with a floor concerning a prior art are shown. (a) is a small anti 25 and (b) is a large anti 26. Both are plan views. The small anti 25 in (a) is a 240 mm wide cloth frame with only one main material 30 having a width of 240 mm, and the large anti 26 in (b) has two main materials 30 having a width of 240 mm arranged side by side. It is shown that this is a cloth frame with a floor having a width of 500 mm. In these examples, an embossing 71 is applied to the upper surface of the floor material portion 31 in order to prevent a worker from slipping when walking on a cloth frame with a floor. Moreover, in order to prevent the main material 30 from bending in the width direction, a crosspiece 70 is provided below the central portion of the main material 30.

  And there are inch size and meter size for the length of the horizontal frame of the building frame and the length of the arm timber, but when the inch size is taken as an example, usually three types of 610 mm, 914 mm and 1219 mm are prepared. Yes.

  Therefore, normally, when a cloth frame with a floor is installed as a work floor and a passage of a frame scaffold, a large anti (500 mm width) is used to form a 610 mm width, and a 914 mm width is formed. One large anti (500 mm width) and one small anti (240 mm width) are placed side by side, and two large antis (500 mm width) are placed side by side to form a 1219 mm width. Become.

  FIG. 7 shows three examples when a cloth frame 11 with a floor according to the prior art is installed as a work floor and a passage between the adjacent cross frames 3 of the building frame. (a) is an installation example with a width of 610 mm, (b) is an installation example with a width of 914 mm, and (c) is an installation example with a width of 1219 mm. Each is an enlarged view (plan view) of the vicinity of the horizontal beam 3 when the cloth frame 11 with a floor is installed across the horizontal beam 3 of the adjacent building frame. 610mm width of (a) is from one large anti 26 (500mm width), 914mm width of (b) is from one large anti 26 (500mm width) and one small anti 25 (240mm width), and (c ) Of 1219 mm is shown to be formed from two large anti-26 (500 mm width). In these examples, an embossing 71 is applied to the upper surface of the floor material portion in order to prevent an operator from slipping when walking on a cloth frame with a floor.

  Next, in the framework scaffold, it is necessary to incorporate stairs into the framework scaffold in order for workers to assemble or dismantle the framework scaffold or to move within the framework scaffold. In this case, a staircase member in which one or two cloth frames with floors in the upper scaffolding are removed, and gripping metal fittings are attached to both ends between the crosspieces or arm timbers of the building frame constituting the upper and lower scaffolds. Can be built into the frame scaffolding by crossing the frame diagonally. For example, Patent Document 1 discloses a frame scaffold in which a staircase member is incorporated in a frame scaffold.

  FIG. 8 shows two examples (plan view) when the staircase member 75 is incorporated in a frame scaffold according to the prior art. In this case, the staircase member can be incorporated on either the road side or the building side as shown in (a) and (b). Here, the width of the work floor and the passage is 914 mm wide, and therefore the cloth frame 11 with a floor has one large anti 26 (500 mm width) and one small anti 25 (240 mm width) arranged in parallel in the horizontal direction. And is spanned between the adjacent horizontal frames 3 of the building frame.

  However, if the gripping metal fittings at both ends of the floor-mounted cloth frame are attached to the crosspiece or arm timber of the building frame, the floor-mounted cloth frame will be There will be gaps on both sides and both ends of the fabric frame. If there is such a gap, there is a risk that a worker may drop tools, building materials, etc. from the gap in the framework scaffold during the work of assembling or dismantling the framework scaffold or while moving in the framework scaffold.

  For this reason, with respect to the gap on both sides of the cloth frame with a floor, the gap is usually closed by installing a baseboard (not shown) on the road side of the cloth frame with the floor or further on the building side. Things have been done.

  Next, the clearance gap between the both ends of a cloth frame with a floor is demonstrated. A gap between both ends of the floor-attached cloth frame is formed between adjacent floor-attached cloth frames via a crosspiece of the building frame or the arm lumber.

  FIG. 9 is an example (plan view) showing a gap 72 generated at both ends of the floored cloth frame when the floored cloth frame 11 according to the prior art is bridged between the horizontal rails 3 of the adjacent building frame. Here, a large gap 72 is generated between the beam member 40 of the cloth frame with a floor and the horizontal rail 3. Therefore, tools, building materials, etc. may fall from the gaps in the framework scaffold.

  As measures against this gap, it is conceivable to reduce or eliminate the gaps at both ends of the cloth frame with a floor.

  In order to reduce the gap between both ends of the cloth frame with the floor, the end face of the cloth frame with the floor may be extended outward. The end face of the cloth frame with a floor can be extended outward only by making the length in the longitudinal direction of the cloth frame with the floor longer than before. For that purpose, the length of the longitudinal direction of the cloth material part and the floor material part constituting the main material of the cloth frame with a floor is made longer than before, or the width of the beam material provided at both ends of the cloth frame is conventionally increased. Wider than that. In addition, considering that the crosspieces or arm timbers of the building frame are usually in the shape of a circular tube, only the upper or lower flange of the beam material provided at both ends of the cloth frame with floor is outside the cloth frame end face. The shape may be simply extended in the direction. Instead of making the length of the fabric frame with a floor longer than before by these methods, the end face is substantially extended by joining a protruding member parallel to the beam material outside the beam material. Also good. In Patent Document 2, the grip metal fittings are still attached to both ends of the cloth material portion of the main material, but the upper flanges of the beam members provided at both ends of the cloth frame with the floor are extended outward of the cloth frame end surface. A technique for reducing this gap by adopting a different shape is disclosed.

  FIG. 10 is an example (plan view) in which the gap between both ends of the cloth frame with floor is reduced by extending the end face of the cloth frame with floor outward. Here, by making the width of the beam material provided at both ends of the cloth frame with a floor shown in FIG. It is gone.

  FIG. 11 is another example (plan view) in which the gap between both ends of the cloth frame with a floor is reduced by extending the end face of the cloth frame with a floor further outward. This is a cloth frame with a floor shown in Patent Document 2, wherein the upper flanges of the beam members 40 at both ends of the cloth frame 11 with a floor are projected so as to extend outward from the end face of the cloth frame. 44 is formed, and the gripping metal fitting 50 is attached to both ends of the main material cloth portions 32a and 32b. Since the gripping metal fitting 50 securely holds the horizontal frame 3 or the arm wood 21 of the building frame, the cloth frame 11 with the floor can be installed between the horizontal frame 3 or the arm wood 21 of the adjacent building frame. In addition, the gap 72 between the beam material 40 of the floor cloth frame and the crosspiece 3 is eliminated, and the gap 72 that remains slightly between the protruding portions 44 of the beam material of the adjacent floor cloth frame is lateral. Since it is on the pier 3, it can be said that the gap 72 is actually gone. Therefore, there is no possibility that tools, building materials, etc. will fall from the gaps in the framework scaffold.

  On the other hand, eliminating the gaps at both ends of the cloth frame with a floor can be realized by eliminating the need for gripping metal fittings attached to both ends of the cloth material portion of the main material. For example, in Patent Documents 3 and 4, the entire beam material provided at both ends of the cloth frame with a floor is extended outwardly of the end face of the cloth frame, and an uneven cutout or recess is provided outwardly. By making the material have the function of gripping metal, the gripping metal parts that are attached to both ends of the main material cloth part are unnecessary, and the end part of the cloth frame with a floor that is adjacent to the building frame via the cross rail or the arm lumber A method is disclosed in which the gap is eliminated by fitting the concave and convex notch portions or concave portions provided outward to the beam material provided on the outer side.

JP-A-11-36572 JP 2001-311304 A JP 2005-68934 A Japanese Patent Laid-Open No. 9-13660

  As described above, with respect to the gap on both sides of the cloth frame with a floor, the gap is usually set by installing a baseboard (not shown) on the road side of the cloth frame with a floor or further on the building side. Can be closed.

  And about the clearance gap between the both ends of a cloth frame with a floor, by extending the end surface of the both ends of a cloth frame with a floor to an outward direction, the clearance gap between a crosspiece or arm timber of a building frame is decreased or eliminated. Is disclosed in Patent Documents 2 to 4.

  By the way, when incorporating the stairs into the frame scaffolding, remove one or two of the floored fabric frames from the upper scaffolding, and put both ends between the crosspieces or arm timbers of the building frame that constitute the upper and lower scaffolds The staircase member to which the grip metal fitting is attached is slanted over. However, in the case of using a cloth frame with a floor formed by extending the end surfaces of both ends disclosed in Patent Documents 2 to 4, the holding bracket of the staircase member is used for the horizontal rail or arm wood of the building frame. A situation occurs in which it cannot be grasped.

  FIG. 12 is a partial plan view of two examples in which a staircase member is installed at the place where the cloth frame with a floor shown in FIG. 10 is bridged between the horizontal rails of adjacent building frames. Each of the large anti 26 (500 mm width) and small anti 25 (240 mm width) of the cloth frame with a floor, which reduces the gap between the cloth frame end faces by making the width of the beam material wider than before, is horizontal. A staircase member 75 is installed at a place arranged in parallel to the direction and spanned between the adjacent cross frames 3 of the building frame. Here, the staircase member 75 can be attached in the case of (a), but in the case of (b), the beam member in which the tip of the gripping metal fitting 50 of the staircase member 75 is expanded in the width of the cloth frame with the floor. Since it hits 40, the step member 75 cannot be attached. That is, even if it is going to install a staircase member, the installation place of a staircase member is being fixed to either the road side or the building side by the structure of the assembled frame scaffold. Therefore, the installation location cannot be freely selected from the road side and the building side.

  FIG. 13 is a partial plan view of another two examples in which a staircase member is installed at a place where the cloth frame with a floor shown in FIG. 10 is bridged between horizontal frames of adjacent building frames. By making the width of the beam material wider than before, the gap between the cloth frame end faces is reduced, and two large anti-26 (500 mm width) cloth cloths with floors are arranged in parallel in the horizontal direction. The staircase member 75 is installed in the place spanned between the crosspieces 3 of the building frame. Here, the staircase member 75 can be attached in the case of (a), but in the case of (b), the beam member in which the tip of the gripping metal fitting 50 of the staircase member 75 is expanded in the width of the cloth frame with the floor. Since it hits 40, the step member 75 cannot be attached. That is, the stairs can be incorporated on either the road side or the building side, but cannot be incorporated in the central portion.

  The problem of these staircase installation locations also occurs when a staircase member is installed at a place where a floor-mounted cloth frame shown in Patent Document 2 is bridged between adjacent horizontal frames of a building frame. This is because the installation location of the staircase member is fixed and cannot be freely selected.

  And if the gap between both ends of the cloth frame with floor is eliminated, the side rail of the building frame to which the bracket for the staircase member should be attached is completely hidden, so it is not possible to incorporate the staircase member using the bracket It becomes impossible. That is, as shown in Patent Documents 3 and 4, the entire beam material provided at both ends of the cloth frame with a floor is extended outward from the end face of the cloth frame, and an uneven cutout or recess is provided outward. In the first place, it is not possible to attach a staircase member to the floored cloth frame.

  Next, as described above, the working floor and the width of the passage of the frame scaffold are determined by the length of the horizontal rail of the building frame or the length of the arm lumber, and are usually 610 mm, 914 mm and 1219 mm in the case of the inch size. According to the situation at the site, one of these three types is selected as the working floor and passage width of the framework scaffold, and the framework scaffold is assembled. However, the width of the working floor and the passage of the framework scaffold does not necessarily follow the same width. For example, in a place where the frame scaffold is far away from the building, it is necessary to install a cloth frame with a floor between them and work. In this case, a bracket having a horizontal member of variable length is attached to the outside of the vertical column or column of the building frame, and the horizontal frame or arm timber of the building frame is substantially The working floor and the passage of the frame scaffolding can be widened by extending a cloth board with a floor over a horizontal rail or arm timber substantially extended to the building side. In addition, there is a case where a material storage area, which is called staging, is provided in the middle of the framework scaffold, which is considerably wider than the passage width. In either case, a large gap is formed between the cloth frames with floors that are stretched in parallel.

  Below, a bracket with a variable length cross member is attached to the outside of the vertical column or column of the building frame, and the horizontal frame or arm timber of the building frame is substantially extended to the building side by this variable length cross member. For example, if the width of the working floor and passage of the frame scaffolding is partially expanded by laying the floorboard on the crosspiece or arm timber substantially extended to the building side, The reason why a gap is formed between the floor-mounted cloth frames is explained.

  FIG. 14 is an example in which a bracket having a cross member of variable length is attached to the outside of a vertical column of a torii frame.

  Here, the horizontal rail of the torii frame 4 has a length of 914 mm. The bracket 17 has a triangular shape, and one side of the bracket 17 is composed of a lateral member 5 of variable length composed of an inner cylinder and an outer cylinder. Here, the maximum length of the lateral member is 500 mm. The bracket 17 is attached to the upper part of the vertical column 2 of the torii frame 4 so that the variable length cross member 5 is positioned on the extension of the cross rail 3 of the torii frame 4. The cross member 5 is stretched to the vicinity of the wall of the building 22 and fixed by the length. Therefore, since the holding member of the cloth frame with the floor can be attached to the cross member 5 having a variable length, the cloth frame with the floor can be bridged on the outside of the torii frame 4.

  FIG. 15 shows an example in which the torii frame shown in FIG. 14 is used to widen the working floor and passage of the frame scaffold. FIG. 15 (a) is a plan view showing a situation when a cloth frame with a floor is bridged between the crosspieces of the building frame substantially extended by the transverse member 5 of variable length, FIG. 15 (b) FIG. 16 is an enlarged view (plan view) of a portion indicated by a circle in FIG.

  Here, the frame scaffolding is outside the original 740 mm width (= 500 mm width + 240 mm width) work floor and passage formed from one existing large anti 26a (500 mm width) and one small anti 25a (240 mm width). In addition, one small anti 25b (240 mm width) is newly stretched in parallel, and its width is expanded. However, since the vertical column 2 of the building frame and the fixing portion 18 of the bracket exist between the existing work floor and passage with a width of 740 mm and the newly installed small anti 25b (240 mm width), the newly installed small A large gap is formed between the anti 25b (240 mm width) so that a worker's foot can enter. Therefore, there is a possibility that the worker may get caught in this gap during work and fall. In addition, tools, building materials, etc. may fall from this gap.

  The present invention has been made to solve these problems, and the stair member can be incorporated at any place, and the working floor of the framework scaffold and a part of the width of the passage are widened or staging is performed. It is an object of the present invention to provide a cloth frame with a floor with little generation of a gap even when incorporated, and a frame scaffolding incorporating the cloth frame with a floor.

  In order to solve the above-described object, the present inventors have made various studies and obtained the following findings (a) to (m).

  (a) If the gap between the ends of the cloth frame with the floor is eliminated, the side rail of the building frame to which the bracket for the staircase member should be attached is completely hidden. Is impossible. That is, the step member cannot be attached to the horizontal rail of the building frame to which the cloth frame with a floor shown in Patent Documents 3 and 4 is attached and fixed via the gripping metal fitting. Therefore, when the staircase member is incorporated into the frame scaffolding via the gripping fittings, the gaps at both ends of the floored cloth frame cannot be eliminated.

  (b) However, even if the gaps at both ends of the floored cloth frame are not completely eliminated, or the gaps at both ends of the floored cloth frame are reduced, there is a risk that tools, building materials, etc. will fall out of the gap. Get smaller. And, in order to reduce the gap between the both ends of the floored cloth frame, it is sufficient to extend the end face of the floored cloth frame outwardly or to connect the protruding member to the outside of the beam material in parallel with the beam material. . Therefore, the problem at this time is that when installing the staircase member in the frame scaffolding via the gripping bracket, the installation location of the staircase member is fixed on the road side, the building side, or the central part, so it can be freely selected It is a point that cannot be done.

  (c) Grasp metal fittings for bridging a cloth frame with a floor between a crosspiece or a timber of a building frame are usually fixed to the four corners of both ends of the main material as disclosed in Patent Document 2. Yes. When assembling the staircase member into the frame scaffolding, remove one or two of the floored fabric frames from the upper scaffolding, and place them at both ends between the crosspieces or arm timber of the building frame that constitutes the upper and lower scaffolds. The staircase member with the gripping bracket attached will be bridged diagonally (the lower end is placed or fixed on the lower floored cloth frame instead of holding the crosspiece or arm timber of the building frame with the gripping bracket. The same applies hereinafter.) Here, since the holding bracket of the staircase member is attached to the long member on the side surface of the staircase, the gripping bracket of the staircase member is fixed to the four corners at both ends of the staircase member. Therefore, if the position of the gripping metal fitting on the cloth frame with a floor matches the position of the metal fitting fitting on the staircase member, the compatibility of the positions of the two metal fittings can be ensured.

  Considering the compatibility of the position of the gripping bracket of the cloth frame with the floor and the position of the gripping bracket of the staircase member by taking a staircase member having a width of 500 mm as an example, the width of the staircase member is equal to two small anti (240 mm width) or Equivalent to one large anti (500 mm width).

  Therefore, since there is always compatibility with the position of the gripping brackets with the small anti-sticks that fix the gripping brackets at the four corners of both ends of the main material, a step member having a width of 500 mm is adjacent to only the small anti-layers. When incorporated, even if the small anti has a reduced gap at both ends thereof, the gripping metal fittings of the staircase member can surely grasp the crosspiece or arm lumber of the building frame.

  (d) Therefore, in order to ensure compatibility with the position of the gripping bracket, even if it is adjacent to the large anti with a small gap at both ends, the gripping bracket of the staircase member is already adjacent. What is necessary is just not to hit the extended end face of the installed large anti. For that purpose, a gap may be formed in the end face of the cloth frame with a floor in the vicinity of the place where the gripping metal fittings of the staircase member will grab the cross rail of the building frame or the arm lumber.

  That is, regardless of the cross-sectional shape of the beam material, an outward cutout or recess may be provided at the center of the beam material. When a protruding member is joined to the outside of the beam material in parallel with the beam material, an outward cutout or recess may be provided at the center of the protruding member. If it does in this way, the grasping metal fittings of a staircase member can grasp the crosspiece or arm timber of a building frame reliably.

  (e) Based on such an idea, the present inventors tried to provide an outward cutout or recess in the center of the beam of the cloth frame with a floor. Also, instead of providing an outward cutout or recess in the beam itself, a protruding member is joined to the outside of the beam in parallel with the beam, and a notch or recess is provided in the center of the protruding member. I tried. The following is an example of a cloth frame with a floor in which the upper flange of the beam material is extended to the outside in the width direction of the beam material to form a protruding portion 44 and an outwardly recessed portion is provided at the center portion thereof. This will be described with reference to FIG.

  FIG. 16 shows an end portion of an example of a cloth frame with a floor in which a concave portion facing outward is provided in the central portion of the beam material, (a) is a plan view, and (b) is an A in (a). -A is an enlarged side view (sectional view) in the direction of arrow A. FIG.

  This cloth frame with a floor has two long main members 30 arranged in parallel in the horizontal direction, and is formed of an upper flange 41, a lower flange 42 and a web 43 on the end surface of the floor member 31. The beam member 40 is fitted and attached, and is a type of large anti (500 mm width). However, since the upper flange 41 of the horizontal plane of the beam member 40 extends outward in the width direction of the beam member, and the protrusions 44 are formed by inclining the entire web 43 of the vertical surface outward, The beam member 40 has an inverted trapezoidal cross section as seen in FIG. Further, the protrusion 44 of the upper flange of the beam material is provided with a recess 46 at the center thereof. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b. Here, the upper surface of the flooring 31 is embossed to prevent the worker from slipping when walking on a cloth frame with a floor. Is not necessary. In addition, in order to prevent the flooring part 31 from bending in the width direction, a crosspiece may be provided below the center part in the longitudinal direction of the flooring part 31.

  FIG. 17 is a plan view showing the situation of the end portion of the cloth frame with a floor when the cloth frame with a floor shown in FIG. 16 is bridged between the horizontal rails 3 of the adjacent building frame 2.

  Since the floor-mounted cloth frame gripping metal 50 can securely hold the horizontal frame 3 of the building frame, the floor-mounted cloth frame 11 can be installed between the adjacent horizontal frames 3 of the building frame, and There are almost no gaps 72 at both ends of the cloth frame. However, since the protrusion 44 of the upper flange of the beam material is provided with a recess 45 at the center, the gap is widened by the recess 46.

  FIG. 18 is a part of two examples in which a staircase member is installed in a place where a cloth frame with a floor (large anti 26) shown in FIG. 16 is combined with a small anti 25 and is bridged between horizontal frames of adjacent building frames. It is a top view. Each of the cloth frame 11 with floor (large anti 26) and the small anti 25 (240 mm width) shown in FIG. 16 is arranged in parallel in the horizontal direction, and spans between the adjacent cross frames 3 of the building frame. The staircase member 75 is installed at the place. It will be understood that the step member 75 can be attached in the case of (a) as well as in the case of (b). This is because the protruding portion 44 of the upper flange of the beam member is provided with a recess 46 at the center thereof, so that the gripping metal fitting 50 of the staircase member does not hit the beam member of the adjacent cloth frame with a floor. This is because the step member 75 can be attached even in the case of (b). In other words, if the floor-mounted cloth frame shown in FIG. 16 is used, the installation location of the stairs is not fixed to either the road side or the building side, and the installation location can be freely selected from the road side and the building side can do. Compared with FIG. 12 (b), the difference is clearly understood.

  FIG. 19 is a partial plan view of two examples in which a staircase member is installed in a place where two of the floor-attached cloth frames (large anti) shown in FIG. 16 are bridged between horizontal frames of adjacent building frames. A stepped member 75 is installed where two pieces of the cloth frame 11 with floor (large anti-26) shown in FIG. 16 are arranged in parallel in the horizontal direction and bridged between the horizontal beams 3 of adjacent building frames. Is done. It will be understood that the step member 75 can be attached in the case of (a) as well as in the case of (b). This is because the protruding portion 44 of the upper flange of the beam member is provided with a recess 46 at the center thereof, so that the gripping metal fitting 50 of the staircase member does not hit the beam member of the adjacent cloth frame with a floor. This is because the step member 75 can be attached even in the case of (b). That is, if the cloth frame with a floor shown in FIG. 16 is used, the installation location of the stairs is not fixed only to the road side or the building side, and may be the central portion. Any of these can be freely incorporated. Compared with FIG. 13 (b), the difference is clearly understood.

  The above has been described with a cloth frame with a floor in which the upper flange of the beam material is extended to the outside in the width direction of the beam material to form the protruding portion 44, and an outwardly recessed portion is provided at the center thereof. Even if it is a cloth frame with a floor formed by extending the lower flange of the beam material to the outside in the width direction of the beam to form the protruding portion 44 and providing an outwardly recessed portion at the center portion, It can be freely incorporated into both the building and the building side. Further, instead of providing an outward recess at the center of the beam material, an outward cutout may be provided. Further, instead of providing an outward notch or recess in the beam material itself, a projecting member may be joined to the outside of the beam material in parallel with the beam material and a notch or recess may be provided in the center of the projecting member. Good.

  (f) As described above, the cross-sectional shape of the beam material of the floor-equipped cloth frame provided with the outward cutout or recess may be a U-shape as usual, but the end face of the floor-equipped cloth frame The shape which protrudes the upper surface part or lower surface part of may be sufficient. In order to project the upper surface portion or the lower surface portion, the shape of the beam material attached to both ends in the longitudinal direction of the main material constituting the cloth frame with a floor may be devised. Conventional beam members are formed of a horizontal plane upper flange, a lower flange, and a vertical web and have a U-shaped cross section, but extend the upper or lower flange of the horizontal plane outwardly of the cloth frame end surface. What is necessary is just to let it be the inverted h shape formed by making it protrude in a shape. Alternatively, a trapezoidal shape or a deformed trapezoidal shape formed by extending the upper or lower flange of the horizontal plane outward of the cloth frame end surface and inclining all or part of the web on the vertical surface outward of the cloth frame end surface. It is good.

  In addition to the cross-sectional shape shown in FIG. 16 (b), the cross-sectional shape of the beam member formed by projecting the upper surface portion of the end face of the cloth frame with a floor is, for example, an inverted h shape, an inverted trapezoidal shape, an inverted deformed trapezoidal shape, etc. Can be mentioned.

  The cross-sectional shape of the beam material that protrudes from the bottom surface of the end surface of the cloth frame with floor is basically above and below the cross-sectional shape of the beam material that protrudes from the top surface of the end surface of the cloth frame with floor. It becomes the cross-sectional shape which replaced.

  (g) Instead of providing a notch or recess in the beam of a fabric frame with a floor, the projecting member is joined to the outside of the beam in parallel with the beam, and an outward notch or recess is provided here. The cross-sectional shape of the protruding member may be a U-shape or a flat plate. Further, it may be an inverted H shape, an inverted L shape, an inverted mountain shape, or a triangular shape. Joining can be performed by welding by wire welding, spot welding, or the like, or can be performed by fixing with bolts, nuts, rivets, or the like. If necessary, it can be reinforced with ribs or the like.

  Examples of the cross-sectional shape of the protruding member include an inverted L shape and a triangular shape.

  In addition, the cross-sectional shape of the projecting member formed by projecting the lower surface portion outward is basically a cross-sectional shape obtained by switching the top and bottom of the cross-sectional shape of the projecting member formed by projecting the upper surface portion outward.

  In this way, if a cloth frame with a floor provided with an outward cutout or recess capable of receiving the gripping metal of the staircase member at the center of the beam member or the protruding member is used, Alternatively, the gap between both ends of the floor-attached cloth frame can be reduced when it is bridged between the arm lumbers, and when the staircase member is incorporated adjacent to the floor-attached cloth frame, The arm wood can be gripped securely. Therefore, the stairs can be freely incorporated at any place.

  (h) Next, using the floor-attached cloth frame with the notches or recesses facing outward in the center of the beam or projecting member in this way, the width of the work floor and passage of the frame scaffolding is partially Consider whether it can be expanded.

  FIG. 20 is an example (plan view) of attempting to bridge the cloth frame with a floor shown in FIG. 16 on the torii frame shown in FIG.

  Here, one existing small anti 25a (240 mm width) is formed from a 914 mm width passage (see FIG. 15) formed by one existing large anti 26a (500 mm width) and one small anti 25a (240 mm width). After removing the frame, a cloth frame with a floor (large anti-26b: 500 mm width) in which a concave portion is provided outwardly at the center portion of the beam member or the projecting member is newly installed in parallel. However, since the width of the vertical column of the building frame to which the bracket having the variable-length cross member is attached and the fixing portion of the bracket is larger than the width of the outward notch or the recess, the outward notch It cannot be received in the part or the recess. Therefore, it is not possible to newly bridge a cloth frame with a floor (large anti-b 26b: 500 mm width) in which a notch or a recess is provided outward at the center of the beam member or the protruding member.

  (i) For this reason, as a result of further examination, in order to be able to receive the fixed part of the vertical column and bracket of the building frame in the outward notch or recess, It was conceived that the outward notch or recess to be provided should be wide so that the vertical column or column of the building frame and the fixing part of the bracket can be received.

  FIG. 21 is an example (reference example) of a cloth frame with a floor in which an outward notch or recess provided in the central portion of a beam member or projecting member is widened under such an idea. In this floor-attached cloth frame, the width of the outward notch or recess is approximately half of the length of the beam member or protruding member.

  FIG. 22 shows an example in which one piece of cloth frame with a floor (dissimilar large anti 26b) shown in FIG. 21 is newly bridged on the torii frame shown in FIG. 14 in addition to one of the existing large anti 26a. (Plan view).

  This is because one existing small anti 25a (240 mm width) is formed from a passage having a width of 914 mm (see FIG. 15) formed by one existing large anti 26a (500 mm width) and one small anti 25a (240 mm width). After removing the fabric, a floor-mounted cloth frame (large anti-26b: 500 mm width) provided with a wide notch or recess outward in the center of the beam member or projecting member is newly bridged in parallel. is there. Since the width of the vertical column of the building frame to which the bracket having the variable length cross member is attached and the fixing portion of the bracket is smaller than the width of the outward notch or the recessed portion which is widened, It is received in a wide notch or recess. Therefore, a cloth frame with a floor (large anti-26b: 500 mm width) in which a concave portion is provided wide outwardly at the central portion of the beam member or the projecting member can be bridged in parallel. Here, after removing one small anti 25a (240 mm width), a wide notch portion or an outward outward direction so that the vertical column of the building frame and the fixing portion of the bracket can be received in the wide notch portion or the recess portion. Since the floor-equipped cloth frame (large anti-26b: 500 mm width) provided with the recesses is newly bridged, no gap is generated between the floor-equipped cloth frames.

  In this way, by making the notch or recess of the floor cloth frame provided with an outward notch or recess at the center of the beam member or projecting member, not only the gripping metal fittings of the staircase member Also, it becomes possible to receive the vertical column of the building frame or the fixing portion of the column and the bracket. In other words, the notch portion or the concave portion is not only considered as a receiving portion of the holding member of the staircase member but also as a receiving portion of the vertical column of the building frame or the fixing portion of the support column and the bracket. In this way, a bracket having a variable length cross member is attached to the outside of the building column's vertical column or column in the building direction, and the cross frame or arm timber of the building frame is substantially made by the variable length cross member. Even if the width of the work floor and passage of the frame scaffolding is partially expanded by extending the floor to the building side and laying the floorboard on the crosspiece or arm timber substantially extended to the building side, There is no gap between the cloth frames with the floor.

  (j) In this way, by fixing the notch or recess in the central part of the beam material or protruding member of the cloth frame with floor, it is possible to receive the vertical part of the building frame or the fixing part of the column and the bracket. As a result, there is no gap between the cloth frames with floors. However, in this case, the total width of the cloth frame with a floor is 1000 mm (=, as compared to the substantial horizontal beam length obtained by adding the horizontal member of the bracket to the horizontal beam of the building frame (914 mm + maximum 500 mm = maximum 1414 mm). 500mm + 500mm) and narrow. Therefore, a bracket having a cross member of variable length is attached to the outside of the vertical column or column of the building frame in the building direction, and the cross rail or arm timber of the building frame is substantially attached to the building side by this cross member of variable length. The floor cloth board can be bridged on the side rail or arm timber substantially extended to the building side, but the floor cloth frame and the building remain separated. There are cases where In addition, since the gripping metal fittings for the floored cloth frame are only hooked on the crosspiece of the building frame and the crosspiece of the bracket, there is a possibility that a large gap may be formed between the floored cloth frames.

  In this case, in addition to the above-mentioned two cloth frames with floors (two different types of large antis), one small anti 25b (240 mm width) is further bridged in parallel, so that the total width of the floored cloth frames is increased. If it is 1240 mm (= 500 mm + 500 mm + 240 mm), the floor-equipped cloth frame and the building are close to each other, and the skid width of the gripping metal fitting on the floor-equipped cloth frame is reduced, so that the formation of a large gap between the floor-equipped cloth frames is prevented. . In addition, there are three cases of the addition of one small anti 25b (240 mm width) to be added on the left side, the middle, and the right side of the two cloth frames with floors (two different types of large antis).

  However, in addition to the two above-mentioned cloth frames with floors (two different types of large anti-frames), the total width of the cloth frame with floors can be further extended by adding one small anti-25b (240 mm width). To 1240 mm (= 500 mm + 500 mm + 240 mm), a cloth frame with a floor having a notch or a recess provided at the center of the beam member or projecting member and a small anti 25b (240 mm width) is added in parallel. There is a case where one small anti 25b (240 mm width) cannot be incorporated even if it is intended to be bridged. This will be described below with reference to the drawings.

  FIG. 23 shows a case where, in addition to the two cloth frames with floors shown in FIG. 22 (two different types of large antis), one additional small anti 25b (240 mm width) is added in parallel. It is a top view of a frame scaffold. FIG. 23 (a) shows a case where two different kinds of large antis are incorporated on the left side, FIG. 23 (b) shows a case where they are incorporated between two kinds of different kinds of large antis, and FIG. The case where two sheets are incorporated on the right side is shown.

  In each of the three cases of FIGS. 23 (a) to 23 (c), the vertical column of the building frame to which the bracket having the cross member of variable length is attached and the fixing portion of the bracket are notched wide outward. It cannot be received in the part or the recess.

  In this way, when using a cloth frame with a floor having a wide notch or recess provided at the center of the beam member or projecting member, two dissimilar large antis shown in FIG. 22 were bridged. There is a case in which one small anti 25b (240 mm width) cannot be incorporated into the frame scaffold.

  As a solution to this, it is conceivable to further widen the width of the outward wide notch or recess, but from the viewpoint of securing the rigidity of the beam member or protruding member, the width of the notch or recess is unnecessarily large. Cannot be expanded. Moreover, even if one small anti 25b (240 mm width) can be incorporated by further expanding the width of the outward wide notch or recess, it can be incorporated into all three cases. Not necessarily. At the site of the frame scaffolding, it is required that a worker on the site can mechanically incorporate a cloth frame with a floor of the kind indicated in the designated position (in this case, a small anti 25 (240 mm width)). . It is a big problem that even one case that cannot be included appears.

  (k) For this reason, as a result of further studies, the inventors have added a small anti 25b (240 mm width) to the frame scaffolding on which two dissimilar large antis are bridged, and are bridged in parallel. In addition, in order to be able to be incorporated in any of the three cases of the left, middle and right sides of the above two cloth frames with a floor (two large antis), One sheet (see FIG. 21) having a wide notch or recess at the center is made different in the center position of the outward wide notch or recess and the center position of the beam member or protruding member. I found out that it should be replaced.

  The outward cutout or recess only needs to be able to receive the gripping metal fittings of the adjacent cloth frame with floor, the metal fittings of the staircase member, the vertical column of the building frame, and the fixing part of the bracket. In addition, when a staircase member is installed, a staircase opening handrail is often installed to prevent the worker from falling onto the staircase from parallel cloth frames with floors. In addition to this, there is a case where the grab fitting for the staircase opening handrail may be bridged on the side rail or the arm lumber of the building frame. From these viewpoints, the position, width, and number of the outward notch or recess may be determined as appropriate.

  In consideration of the fact that the center of the beam or projecting member often accepts the grips of the adjacent cloth frame with the floor and the grip of the staircase, the center of the beam or the projecting member has an adjacent floor. To be able to receive the gripping brackets for the fabric frame and the staircase members, there must be a part of the wide outward notch or recess formed at both ends of the floored fabric frame. Is preferred. In other words, it is preferable that the outward wide notch or recess is formed so as to be biased in either the length direction of the beam member or the protruding member so as to include the center position of the beam member or protruding member. From the standpoint that the gripping metal fitting for the staircase member can be received in the outward wide notch or recess with a margin, the center position of the beam member or the protruding member and the outward wide notch or recess It is preferable to set so that the distance between the end portions is 40 to 50 mm, and more preferably about 45 mm. In addition, from the viewpoint that the gripping metal fittings of the adjacent cloth frame with a floor can be received with sufficient margin in the outward wide notch or recess, the center position of the beam member or protruding member and the outward wide cut It is preferable to set the distance between the end portions of the notches or the recesses to be 10 mm or more.

  Note that the number of outwardly wide notches or recesses is preferably one per beam or protruding member. Moreover, as a direction which biases the center position of the outward wide notch part or recessed part formed in the both ends of the cloth frame with a floor, although either right or left may be sufficient, it is preferable to bias both ends to the same direction. . If both ends are biased in the same direction, the installation direction of the floored cloth frame can be freely selected by simply rotating the floored cloth frame 180 ° in a horizontal plane.

  Under such an idea, FIG. 24 shows the width of the outward notch or recess of the beam member or protruding member provided at both ends of the floored cloth frame, and then the width of the notch or recess. It is an example (invention example) of a cloth frame with a floor in which the center position and the center position of the protruding member are different.

  In this floor-attached cloth frame, the width of the outward notch or recess is approximately half of the length of the beam member or protruding member. Here, the center positions of the outward wide notches or recesses formed at both ends of the cloth frame with a floor are biased in the same direction.

  FIG. 25 shows a floor frame (large anti 26) according to an example of the present invention shown in FIG. 24 combined with a small anti 25, and a staircase member is placed between the cross frames 3 of adjacent building frames. The whole top view of two examples to install is shown. FIG. 26 shows an enlarged plan view of a portion indicated by an ellipse in FIG.

  In this cloth frame with a floor (large anti 26), in the vicinity of the center position of the notch or recess, in order from the left, the gripping metal 50 of the staircase member 75, the gripping metal 50 of the staircase opening handrail 76, and It is necessary to receive the gripping metal 50 of the adjacent small anti 25, but the distance between the center position of the beam member or the projecting member and the end of the wide notch or the recess facing outward is 40 to 50 mm. Since it is provided, any gripping hardware can be received with a margin. Here, the cloth frame with a floor (large anti-26) in the case of (b) is installed by rotating the cloth frame with floor (large anti-26) in the case of (a) by 180 ° in a horizontal plane, Both are cloth frames with a floor (large anti 26) shown in FIG.

  Thus, it can be seen that the stepped member 75 can be attached not only in the case of (a) but also in the case of (b). In other words, using the floored cloth frame shown in FIG. 24, the installation location of the stairs is not fixed to either the road side or the building side, and the installation location can be freely selected from the road side and the building side can do.

  FIG. 27 is an example in which a cloth frame with a floor (large anti 26) according to another example of the present invention is combined with a small anti and bridged between the horizontal beams 3 of adjacent building frames. FIG. 27 (a) is an overall plan view, and FIG. 27 (b) is an enlarged plan view of a portion indicated by an ellipse in FIG. 27 (a).

  The cloth frame with a floor (large anti-26) is provided so that the distance between the center position of the beam member or the protruding member and the end portion of the outward wide notch or recess is 10 mm or more. In the vicinity of the center position of the notch or recess, only the gripping metal 50 of the adjacent cloth frame with a floor (large anti 26) and the gripping metal 50 of the small anti 25 are received. It is not necessary to set as large as shown in FIGS. 25 to 26 between the center position of the member and the end of the wide notch portion or the concave portion facing outward. . However, you may provide so that it may become 40-50 mm.

  FIG. 28 shows an example in which one piece of cloth frame with a floor (dissimilar large anti 26b) shown in FIG. 24 is newly bridged on the torii frame shown in FIG. 14 in addition to one of the existing large anti 26a. It is. FIG. 28 (a) is an overall plan view, and FIG. 28 (b) is an enlarged plan view of a portion indicated by an ellipse in FIG. 28 (a).

  This is because one existing small anti 25a (240 mm width) is formed from a passage having a width of 914 mm (see FIG. 15) formed by one existing large anti 26a (500 mm width) and one small anti 25a (240 mm width). 24, and the floor-attached cloth frame (large anti 26b: 500 mm width) in which the center position of the notch or recess shown in FIG. It is a bridge.

  In this floor-attached cloth frame (large anti-26), the vertical column 2 of the building frame and the bracket are fixed to each other in the vicinity of the center position of the notch or recess. Although the portion 18 is located, since the space between the center position of the beam member or the protruding member and the end portion of the outward wide notch or recess is 40 to 50 mm, The column 2 and the bracket fixing portion 18 can be received with a margin in the outwardly wide notch or recess. The width of the vertical column of the building frame to which the bracket having a variable-length cross member is attached and the fixed part of the bracket is a cloth with a floor in which the center position of the notch or recess differs from the center position of the protruding member Since it is smaller than the width of the wide outward notch or recess of the frame, it is received in the outward wide notch or recess. And after removing one piece of small anti 25b (240 mm width), a cloth frame with a floor (large anti 26b: 500 mm width) provided with a wide notch or a recess outwardly was laid. There is no gap between the attached fabric frames.

  (l) Next, in addition to the above-mentioned two cloth frames with floors (two different types of large antis) shown in FIG. 28, one additional small anti 25b (240 mm width) is additionally installed. Thus, it was verified whether the total width of the cloth frame with a floor could be 1240 mm (= 500 mm + 500 mm + 240 mm).

  FIG. 29 shows a case in which, in addition to the two cloth frames with floors shown in FIG. 28 (two dissimilar large antis), one small anti 25b (240 mm width) is added in parallel to try to bridge it. It is a top view of a frame scaffold. FIG. 29 (a) shows a case where it is incorporated on the left side of two dissimilar large antis, FIG. 29 (b) shows a case where it is incorporated between two dissimilar large antis, and FIG. The case where two sheets are incorporated on the right side is shown. Here, when one small anti 25b (240 mm width) is incorporated on the right side of two different large antis in FIG. 29 (c), one of the two different large antis (shown in FIG. 24). Stuff) is rotated 180 ° on a horizontal plane.

  In each of the three cases of FIGS. 29 (a) to 29 (c), the vertical column of the building frame to which the bracket having the cross member having a variable length is attached and the fixing portion of the bracket are notched wide outward. It is received in the part or the recess. In other words, the vertical column of the building frame and the fixing portion of the bracket can be received only by shifting the position of the wide notch or recess in the beam material or the protruding member of the cloth frame with a floor.

  Therefore, it was found that one small anti 25b (240 mm width) can be incorporated into the frame scaffold in which two different large antis shown in FIG. 28 are bridged.

  That is, instead of a cloth frame with a floor (see FIG. 21) in which a wide notch or recess is provided at the center of the beam member or protruding member, a wide notch or recess is formed outward. Further, by using a cloth frame with a floor (see FIG. 24) in which the center position of the notch or recess is different from the center position of the beam member or the protruding member, a further small anti 25b (240 mm width) 1 Sheets can be incorporated.

  As described above, the beam material or the protruding member is provided with an outwardly wide notch or recess, and the center position of the notch or recess is made different from the center position of the beam material, thereby adjacent floors. Since it is possible to receive the holding bracket of the attached fabric frame, the holding bracket of the staircase member, the vertical column of the building frame or the fixed part of the column and the bracket in the notch or recess, one more small anti 25b (240 mm width) Can be incorporated. As a result, a bracket having a horizontal member of variable length is attached to the outside of the vertical column or column of the building frame in the building direction, and the horizontal frame or arm timber of the building frame is substantially Even if the working floor and the passage of the frame scaffold are partially expanded by extending the floor and the cloth board with the floor on the cross rail or arm timber extended substantially to the building side, the floor There is no gap between the attached fabric frames. In addition, when the staircase member is incorporated adjacent to the cloth frame with the floor, the staircase gripping metal can securely grasp the crosspiece or arm timber of the building frame, so that the staircase can be freely incorporated anywhere. It becomes possible.

  In the above description, the case where one small anti is incorporated into the frame scaffolding on which two large antis are bridged has been described. In other cases, for example, one large anti and one small anti are bridged. The same result is obtained when one small anti is incorporated into the framed scaffold (or replaced with two different large antis).

  Also, when staging is incorporated into the frame scaffold, the beam material or the protruding member is provided with a wide outward notch or recess, and the center position of the notch or recess and the center position of the beam material are By making them different, it becomes possible to receive the two vertical columns or pillars of the building frame in their notches or recesses, so it is possible to make a frame scaffold that does not generate a gap between the floored cloth frames Become.

  FIG. 30 shows an example in which staging is incorporated into a framework scaffold. (a) is a front view, (b) is a plan view. In the front view of (a), the cloth frame with a floor is not shown.

  This staging is performed by separating two sets of two torii frames, which are formed by connecting two torii frames 4 vertically with two connecting metal fittings 9, by the length of the cloth frame with the floor in the vertical direction. Standing up, it was formed by laying five cloth frames with floors in parallel between the torii frames. The upper flange 41 of the beam of the cloth frame with a floor located at the center is provided with an outward wide notch or recess, and the center position of the notch or recess and the center position of the beam Is different. As shown in the drawing, the wide outward cutout or recess can receive two vertical bars 3 of the torii frame 4 with a margin. Therefore, it is possible to provide a frame scaffold in which no gap is generated between the cloth frames with a floor.

  In addition, the outward wide notch or recess provided in the upper flange 41 of the beam material of the cloth frame with a floor has an opening / closing lid 80, and here, the opening / closing lid 80 is in an opened state. . When this cloth frame with a floor is used for a normal work floor and a passage of a framework scaffold, by closing the opening / closing lid 80, the gap between the cutout or the recess and the side rail can be reduced. The opening / closing lid 80 will be described later.

  In addition, the floor-attached cloth frame is provided not only for the upper surface of the floor material part but also for the upper surface of the upper flange 41 of the beam material in order to prevent the worker from sliding when the worker walks on the cloth frame with the floor. Is also embossed.

  As described above, the cloth frame with a floor according to the present invention is provided with an outwardly wide notch or recess in the beam member or projecting member, and the center position of the notch or recess and the beam. By making the center position of the material different, the staircase member can be incorporated in any place, and even if the working floor and the passage width of the frame scaffolding are partly expanded or staging is incorporated, there are few gaps It is possible to provide a cloth frame with a floor and a frame scaffold incorporating the cloth frame with a floor.

  (m) In addition, when using a floor cloth frame in which such a beam member or projecting member is provided with a wide notch or a recess facing outward, the space between the floor cloth frames that are bridged in parallel is used. Although it is possible to prevent the gap from being generated, the gap between the horizontal rail is widened in the notch or the recess. Since there is a horizontal rail at the bottom of the notch or recess, small tools such as bolts and nuts will fall, although there is little risk of large tools or building materials falling from the gap between the notch or recess. I can't deny that. Moreover, there is a possibility that the worker may get caught in this gap while working or passing.

  In order to narrow the gap between the adjacent beam members in the notch or recess, a cover that can be opened and closed is provided in the notch or recess, and the vertical column of the building frame or the fixing part of the column and the bracket The lid can be opened when it is necessary to receive the gripping member of the staircase member, and can be closed when it is not received. Therefore, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, closing the opening / closing lid 80 can reduce the gap between the notch or the recess and the side rail. it can.

  The lid that covers the upper surface of the notch or the recess may be a member that is independent of the cloth frame with a floor, but in this case, there is a risk of loss and the workability is inferior. If it is a member attached to the cloth frame with a floor, there is no risk of loss or the like, and the workability is excellent.

  The opening / closing lid provided on the upper surface of the notch or the recess may be installed so that it can be opened / closed by rotation. When the lid is closed, it is preferable that the opening / closing lid is not naturally opened upward or downward by wind force or the like. As such a structure, it is sufficient to make the opening / closing lid itself heavy or attach a weight. However, in order to make the structure that does not open naturally upward or downward with wind power when the lid is closed, a method of installing a stopper to prevent rotation on the open / close lid, coil spring, tension spring, push By installing a spring such as a spring and holding the open / close lid horizontally using the biasing force of the spring, by holding the open / close lid horizontally by a wedge-shaped projection or protrusion, by a long hole with a wedge effect A method of holding the opening / closing lid horizontally, a method of holding the opening / closing lid horizontally by a long hole having a constriction, a method of holding the opening / closing lid horizontally by fitting a convex part or a projection with the long hole, etc. Is preferred.

  Instead of rotating the lid downward to open the opening / closing lid when it is necessary to receive the gripping metal fitting of the staircase member in the notch or recess, the opening / closing lid may be opened by moving it horizontally. . In this case, even if the opening / closing lid does not have a structure that does not open upward or downward, it does not naturally open upward or downward by wind power or the like.

  The opening / closing lid provided on the upper surface of the notch or the recess preferably has a structure in which the lid is opened downward or horizontally only when an artificial force is applied when the lid needs to be opened / closed. As an artificial force, it is conceivable that the lid is manually opened by an operator each time. In addition, when the gripping fitting is received in the notch or the recess, the gripping fixture is moved downward, so that the opening / closing lid is moved downward or horizontally following the downward movement of the gripping fixture. You may make it open a notch or a recessed part by moving to a direction.

  In order for the opening / closing lid to move downward following the downward movement of the gripping metal, it is sufficient if it is made of a rubber material that can be used to hold the opening / closing lid, or the lid is attached via a leaf spring. It may be held. Further, the lid may be rotated downward about the rotation axis in a form against the urging force of a spring such as a coil spring, a pull spring, or a push spring.

  In order to follow the downward movement of the gripping bracket and allow the horizontally movable opening / closing lid to move horizontally, when the gripping bracket moves downward, it is held by the side of the edge of the opening / closing lid. What is necessary is just to make it contact | abut the front-end | tip of a metal fitting. When the gripping metal moves downward, a horizontal force acts on the edge of the opening / closing lid from the tip of the gripping metal, so that the entire opening / closing lid moves in the horizontal direction.

  Concrete, paint, etc. may adhere to the upper surface of the cloth frame with the floor during work. After dismantling the frame scaffolding, the concrete, paint, etc. attached to the cloth frame with the floor using a machine called “Kellen machine” Work to remove. “Keren machine” is equipped with a lot of iron rings, etc., which can be removed by hitting the ring against the upper surface of the cloth frame with a floor, but the impact of bending a thin iron plate is a cloth with a floor. Join the top of the frame. Therefore, since such an impact is also applied to the upper surface of the beam material constituting the floored cloth frame, it is preferable that the opening / closing lid has a structure that can withstand the impact.

  The present invention has been completed based on such findings, and the gist of the following (1) to (8) cloth frame with floor and (9) to (10) frame scaffolds. Hereinafter, (1) to (10) may be collectively referred to as the present invention.

(1) A long main material or a plurality of long main materials arranged in parallel in the horizontal direction, two beam members attached to both ends of the main material, and four corners at both ends of the main material A cloth frame with a floor composed of four gripping fixtures fixed to the two, both of the beam members are formed with a wide notch or recess outwardly at the non-end, and the notch or A cloth frame with a floor, characterized in that the center position of the recess is different from the center position of the beam member.

(2) A long main material or a plurality of long main materials arranged in parallel in the horizontal direction, two beam members attached to both ends of the main material, and the outside of both beam materials A cloth frame with a floor consisting of two projecting members joined in parallel and four grips fixed to the four corners of both ends of the main material, both projecting members facing outward at the non- ends A cloth frame with a floor, characterized in that a wide notch or recess is formed, and the center position of the notch or recess is different from the center position of the protruding member.

(3) A long main member or a plurality of long main members arranged in parallel in the horizontal direction, two beam members attached to both ends of the main member, and the outside of one beam member a bed with fabric frame comprising four gripping bracket being fixed one and protruding members which are joined in parallel to that, the four corners of both end portions of the main member, outwardly non end to the other beam members And the center position of the notch or recess is different from the center position of the beam member, and the protruding member has a wide width outward at the non- end portion . A cloth frame with a floor, wherein a notch or a recess is formed, and a center position of the notch or recess is different from a center position of the protruding member.

  (4) The center position of the beam member or the protruding member is provided with a part of an outwardly wide notch or a recess formed at both ends of the cloth frame with a floor, A cloth frame with a floor according to any one of 1) to (3).

  (5) Any of the above (1) to (4), characterized in that the center positions of the outward wide notches or recesses formed at both ends of the fabric frame with a floor are biased in the same direction A cloth frame with a floor.

  (6) The cloth frame with a floor according to any one of the above (1) to (5), wherein a lid that can be opened and closed is provided in the notch or the recess.

  (7) A frame scaffold characterized by incorporating the cloth frame with a floor according to any one of (1) to (6) above.

  (8) The framework scaffold according to (7) above, further including a step member.

  (9) The frame scaffolding according to (7) or (8) above, wherein a bracket having a variable length cross member is attached to a part of a vertical column or a column of a building frame constituting the frame scaffold. A framework scaffold characterized by

  (10) A framework scaffold according to any one of (7) to (9) above, wherein staging is incorporated.

  According to the present invention, it is possible to incorporate a staircase member at any location, and even if a part of the working floor of the frame scaffolding and the width of the passage are widened or a staging is incorporated, a cloth frame with a floor with little generation of gaps, It is possible to provide a frame scaffold incorporating the cloth frame with a floor.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a fabric frame with a floor according to the present invention and a frame scaffold incorporating the fabric frame with a floor will be described with reference to the drawings.

  Note that, as described above, both the outward notch and the recess provided in the beam member or the protruding member have the same effect. Further, in the present invention, an openable / closable lid may be installed on the outward notch or recess. However, the openable / closable cover is provided with an outward notch or recess in the beam material. It can be installed regardless of the floor-equipped cloth frame provided with a floor and the floor-formed cloth frame provided with an outward notch or recess in the protruding member, and both have equivalent effects. .

  Therefore, in the following embodiments, the “floored cloth frame in which a beam material is provided with an outwardly recessed portion” will be mainly given as an example, but the “floored cloth material in which a beam material is provided with an outward notch” will be described. "Frame" and "Fabric frame with floor with projecting member provided with outward recess" and "Fabric frame with floor with projecting member provided with outward notch" are also It is clear that there is an effect equivalent to “a cloth frame with a floor provided with a recess”. The present invention is not limited to the following examples.

  FIG. 31 shows an end of an example of a cloth frame with a floor according to the present invention, (a) is a plan view, and (b) is an enlarged side view in the direction of arrows AA in (a). FIG.

  This cloth frame with a floor has two long main members 30 arranged in parallel in the horizontal direction, and is formed of an upper flange 41, a lower flange 42 and a web 43 on the end surface of the floor member 31. The beam material is fitted and attached, and is a type of large anti (500 mm width). However, among the beams, the upper horizontal flange 41 in the horizontal plane is projected so as to extend outward in the width direction of the beams, so that the beam 40 has an inverted h-shaped cross section as seen in FIG. Have. Further, the protruding portion 44 of the upper flange of the beam material is provided with a notch 45 having a wide width outward. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b. Here, the upper surface of the flooring 31 is embossed to prevent the worker from slipping when walking on a cloth frame with a floor. Is not necessary. In addition, in order to prevent the flooring part 31 from bending in the width direction, a crosspiece may be provided below the center part in the longitudinal direction of the flooring part 31.

  This cloth frame with a floor is provided with a wide notch on the beam, and the center position of the notch is different from the center of the beam. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 32 shows the end of another example of a cloth frame with a floor according to the present invention, (a) is a plan view, and (b) is an enlarged side view in the direction of arrows AA in (a). FIG.

  This cloth frame with a floor has two long main members 30 arranged in parallel in the horizontal direction, and is formed of an upper flange 41, a lower flange 42 and a web 43 on the end surface of the floor member 31. The beam material is fitted and attached, and is a type of large anti (500 mm width). However, among the beams, the upper flange 41 on the horizontal plane extends outward in the width direction of the beam, and the protrusions 44 are formed by inclining the entire web 43 on the vertical surface outward. As shown in FIG. 32B, the material 40 has an inverted trapezoidal cross section. Further, a protruding portion 44 of the upper flange of the beam material is provided with a wide concave portion 46 outwardly. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b.

  This cloth frame with a floor is provided with a wide concave portion facing outwards in the beam material, and the central position of the concave portion and the central position of the beam material are made different so that the staircase member can be incorporated in any place. it can. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 33: shows the edge part of the other example of the cloth frame with a floor concerning this invention, (a) is a top view, (b) is an enlarged side surface of the AA arrow direction of (a). FIG.

  This cloth frame with a floor is a modification of FIG. Two long main members 30 are arranged in parallel in the horizontal direction, and a beam member formed of an upper flange 41, a lower flange 42, and a web 43 is fitted to the end surface of the floor 31. FIG. 32 is the same as FIG. 32 in that it is attached and is a kind of large anti (500 mm width) and the gripping metal fitting 50 is attached to both ends of the main material cloth portions 32a and 32b. Among the beams, the upper horizontal flange 41 in the horizontal plane is the same until the projections 44 are formed so as to extend outward in the width direction of the beams, and a part of the web 43 on the vertical plane is formed. The beam member is different in that it is inclined outward. Therefore, as shown in FIG. 33B, the cross section of the beam member has an inverted deformed trapezoidal shape. Further, the protruding portion 44 of the upper flange of the beam material is the same in that a wide concave portion 46 is provided outwardly, but the concave portion 46 is different in that the opening is widened.

  This cloth frame with a floor is provided with a wide concave portion facing outwards in the beam material, and the central position of the concave portion and the central position of the beam material are made different so that the staircase member can be incorporated in any place. it can. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 34: shows the edge part of the other example of the cloth frame with a floor concerning this invention, (a) is a top view, (b) is an enlarged side surface of the AA arrow direction of (a). FIG.

This cloth frame with a floor is a kind of large anti (500 mm width), two long main members 30 are arranged in parallel in the horizontal direction, and an upper flange 41 and an end face of the floor member 31 are arranged. The cross-shaped U-shaped beam material formed from the lower flange 42 and the web 43 is fitted and attached, and the cross-section is inverted L-shaped in parallel with the beam material on the outer side in the width direction of the beam material. it is a protruding member 60 that are joined by a line weld W _3. The protruding member 60 is provided with an outwardly wide notch 61. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b. Here, the protruding member 60 is joined to the outside of the beam material by wire welding, but may be joined by a bolt nut, a rivet or the like instead of welding.

  In this cloth frame with a floor, the projecting member is provided with an outward wide notch, and the center position of the notch and the center position of the beam are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 35 shows the end of another example of a cloth frame with a floor according to the present invention, (a) is a plan view, and (b) is an enlarged side view in the direction of arrows AA in (a). FIG.

This cloth frame with a floor is a modification of FIG. Two long main members 30 are arranged in parallel in the horizontal direction, and a beam having a U-shaped cross-section formed from an upper flange 41, a lower flange 42, and a web 43 on the end surface of the floor portion 31. on the wood is attached is fitted, which further parallel to the Harizai outside the width direction of the beam material, cross section is joined to the projecting member 60 of inverted L shape by two line welding W _3, The point that it is a kind of large anti (500 mm width) and the point that the gripping metal fittings 50 are attached to both ends of the main material cloth portions 32a and 32b are the same as in FIG. A different point is that the projecting member 60 having an inverted L-shaped cross section joined to the outside of the beam material in parallel to the beam material is divided into two members, and a gap is formed between the two members. It is a point that forms. Here, the protruding member 60 is joined to the outside of the beam material by wire welding, but may be joined by a bolt nut, a rivet or the like instead of welding.

  This cloth frame with a floor forms two wide protruding parts by forming two protruding members on the beam material, and the center position of the notch part differs from the center position of the beam material. As a result, the staircase member can be incorporated at any place. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 36 shows the end of another example of a cloth frame with a floor according to the present invention, (a) is a plan view, and (b) is an enlarged side view in the direction of arrows AA in (a). FIG.

This cloth frame with a floor is a kind of large anti (500 mm width), two long main members 30 are arranged in parallel in the horizontal direction, and an upper flange 41 and an end face of the floor member 31 are arranged. The cross-shaped U-shaped beam material formed from the lower flange 42 and the web 43 is fitted and attached, and the cross-section is triangular in parallel to the beam material on the outer side in the width direction of the beam material. the projecting member 60 is obtained by bonding by lineweld W _3. The protruding member 60 is provided with an outwardly wide concave portion 62. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b. Here, the protruding member 60 is joined to the outside of the beam material by wire welding, but may be joined by a bolt nut, a rivet or the like instead of welding.

This cloth frame with a floor incorporates a stepped member at any location by providing a projecting member with an outward wide recess and making the center of the recess different from the center of the beam. Can do. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.
Stairs can be built into any place when bridged between the piers 3.

  FIG. 37: shows the edge part of the other example of the cloth frame with a floor concerning this invention, (a) is a top view, (b) is an enlarged side surface of the AA arrow direction of (a). FIG.

This cloth frame with a floor is a modification of FIG. Two long main members 30 are arranged in parallel in the horizontal direction, and a beam having a U-shaped cross-section formed from an upper flange 41, a lower flange 42, and a web 43 on the end surface of the floor portion 31. on the wood is mounted fitted, further parallel to the Harizai outside the width direction of the beam member, the projecting member 60 is joined by line welding W _3, wide recess outward in the protruding member 60 62 is the same as FIG. 36 in that it is a kind of large anti (500 mm width) and that the gripping metal fitting 50 is attached to both ends of the main material cloth portions 32a and 32b. is there. The difference is that the angle steel is inverted and used as the protruding member. However, even if angle iron is used, the cross section of the protruding member has a triangular shape as seen in FIG. Here, the protruding member 60 is joined to the outside of the beam material by wire welding, but may be joined by a bolt nut, a rivet or the like instead of welding.

  This cloth frame with a floor is provided with an outwardly wide concave portion on the projecting member, and the central position of the concave portion and the central position of the beam material are made different so that the staircase member can be incorporated in any place. it can. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 38 shows the end of another example of a cloth frame with a floor according to the present invention, (a) is a plan view, and (b61) is an enlarged side view in the direction of arrows AA in (a). FIG.

  This cloth frame with a floor is a kind of large anti (500 mm width). Two long main members 30 are arranged in parallel in the horizontal direction, and are formed on the end surface of the floor 31 from a horizontal upper flange 41, a horizontal lower flange 42, and a vertical web 43. The beam material is fitted and attached, and the cross-section of the beam material is U-shaped. However, the end surface is extended more than a normal cloth frame with a floor, and the clearance gap between the end surface of a cloth frame with a floor and the crosspiece or arm timber of a building frame is small. Furthermore, the beam member is provided with a wide concave portion 46 outwardly. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b.

  This cloth frame with a floor is provided with a wide concave portion facing outwards in the beam material, and the central position of the concave portion and the central position of the beam material are made different so that the staircase member can be incorporated in any place. it can. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 39 shows the end of another example of a cloth frame with a floor according to the present invention, (a) is a plan view, and (b) is an enlarged side view in the direction of arrows AA in (a). FIG.

This cloth frame with a floor is a kind of large anti (500 mm width), two long main members 30 are arranged in parallel in the horizontal direction, and an upper flange 41 and an end face of the floor member 31 are arranged. on the lower flange 42 and the beam member of the cross-section U-shape formed from the web 43 is attached is fitted, further projecting member 60 of the flat plate on the outer side of the width direction of the beam members by lineweld W ₃ Two pieces are spaced apart, joined together, and reinforced by ribs 63. The notch 61 is substantially formed by opening the protruding member 60 at an interval of two. The gripping metal 50 is attached to both ends of the main material cloth portions 32a and 32b.

  This cloth frame with a floor forms two wide protruding parts by forming two protruding members on the beam material, and the center position of the notch part differs from the center position of the beam material. As a result, the staircase member can be incorporated at any place. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small.

  FIG. 40 shows an example of a cloth frame with a floor according to the present invention. (a) is an overall plan view of a cloth frame with a floor, (b) is a partial plan view of an ellipse A of the end face of the beam material of (a), and (c) is a cross-sectional view taken along line BB of (b). , (D) is a cross-sectional view taken along the line CC of (b), and (e) is an enlarged view of a portion D of (b). Note that (f) shows only the coil spring extracted from (e).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. An opening / closing lid 80 capable of horizontally closing the upper portion of the concave portion 46 is attached via a coil spring 83 provided horizontally below the upper surface level of the upper flange 41. Note that a U-shaped reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46. The opening / closing lid 80 is provided with an end portion 85 in order to give rigidity. Further, a coil spring attachment hole 84 for attaching one end of the coil spring 83 is provided in the reinforcing member 47, and a coil spring attachment hole 84 for attaching the other end of the coil spring 83 is provided in the end portion 85 of the opening / closing lid.

  The opening / closing lid 80 has a structure that does not open upward because of a stopper (not shown) for preventing upward rotation. When the cover is closed, the cover is held horizontally at the upper surface level of the recess by the counterclockwise urging force of the coil spring 83, and the wind does not rotate downward. The opening / closing lid 80 applies the artificial force when it is necessary to receive the gripping member of the staircase member in the concave portion, so that the rotating shaft 81 of the coil spring 83 is not turned on until the coil spring 83 is biased. It has a structure in which it rotates clockwise around the center and the lid opens. Therefore, when the open / close lid 80 is closed, the open / close lid 80 installed on the concave portion of the beam material does not rotate upward or downward even if the open / close lid 80 is blown by the wind. Is not lifted unexpectedly, and there is no possibility that the worker will trip over the opening / closing lid 80 and fall down.

  As an artificial force for opening the opening / closing lid 80, in addition to a manual force by an operator, it is possible to use the force of the downward movement of the gripping metal when the gripping metal of the staircase member is received in the recess. it can.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is provided below the level of the upper surface of the beam material, concrete, paint, or the like does not adhere during the operation. In addition, even after the frame scaffold is disassembled, the coil spring 83 is not on the upper surface of the opening / closing lid 80 even if the concrete or paint adhered to the upper surface of the cloth frame with a floor is removed using a machine called “Kellen machine”. The coil spring 83 is not damaged.

  FIG. 41 shows a procedure for opening the opening / closing lid 80 manually by an operator with respect to the cloth frame with a floor according to the present invention shown in FIG.

  FIG. 41 (a) shows a state in which the cloth frame with a floor is installed in the frame scaffold by hooking a gripping metal fitting (not shown) of the cloth frame with a floor onto the horizontal rail 3 of the building frame. 80 is held by the biasing force of the coil spring 83 in a state where the lid is horizontally closed at the upper surface level of the concave portion. Further, since the opening / closing lid 80 is in contact with the upper left portion of the horizontal rail 3 of the building frame at the lower right of the end portion 85 of the opening / closing lid, the opening / closing lid sinks even if an operator passes over the opening / closing lid 80. Is prevented. Next, in FIG. 41 (b), the operator manually lifts the end of the cloth frame with the floor with the lid closed upward, and manually lowers the opening / closing lid 80 clockwise around the rotation shaft 81. It shows a state where the lid is opened downward by lowering the end of the cloth frame with the floor downward while rotating the lid and opening the lid. Here, the open / close lid 80 is held in contact with the left side of the horizontal rail 3 of the building frame by the urging force of the coil spring 83. FIG. 41 (c) shows a state in which the cloth frame with a floor is installed in the frame scaffolding, and the gripping metal fitting 50 of the staircase member is lowered from the upper right and is hooked on the horizontal rail 3 of the building frame. The open / close lid 80 with the lid open follows the downward movement of the gripping member 50 of the staircase member and further rotates clockwise around the rotation shaft 81. It can be easily received in the recess 46 of the protruding portion of the beam material of the cloth frame with a floor.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 42 is a modification of the cloth frame with a floor shown in FIG. 41, and shows a procedure of opening the opening / closing lid 80 using a cloth frame with a floor formed by modifying the shape of the opening / closing lid 80. is there.

  Using a cloth frame with a floor slightly cut off on the right side of the opening / closing lid 80 so that the opening / closing lid 80 does not contact the upper side of the horizontal frame 3 of the building frame, the downward movement of the grab fitting 50 of the staircase member is followed. Only the operation | work which can open the opening-and-closing lid | cover 80 is shown.

  FIG. 42 (a) shows a state in which the floor-mounted cloth frame is installed in the frame scaffold by hooking a gripping metal fitting (not shown) of the floor-mounted cloth frame on the horizontal frame 3 of the building frame. The coil spring 83 is held by the biasing force of the coil spring 83 in a state where the lid is horizontally closed at the upper surface level of the concave portion. FIG. 42B shows a state in which the cloth frame with a floor is installed in the frame scaffolding, and the gripping metal fitting 50 of the staircase member is lowered from the upper right and is hooked on the crosspiece 3 of the building frame. When lowering the gripping metal fitting 50 of the staircase member from the upper right, the closed opening / closing lid 80 follows the downward movement of the gripping metal fitting 50 of the staircase member and rotates downward about the rotation shaft 81 clockwise. The gripping metal fitting 50 for the staircase member can be easily received in the concave portion 46 of the protruding portion of the beam material of the cloth frame with a floor. Here, the work of manually opening the opening / closing lid 80 by an operator is not necessary.

  In the opening / closing lid 80 shown in FIG. 41, in the step shown in FIG. 41 (b), the operator manually lifts the end of the cloth frame with the floor with the lid closed, and manually opens and closes the opening / closing lid 80. Was rotated downward clockwise and the end of the cloth frame with the floor was lowered downward while the lid was open, so that the lid was opened downward. On the other hand, in the opening / closing lid 80 shown in FIG. 42, it can be seen that the step of manually lowering the end of the cloth frame with a floor by an operator is unnecessary due to the difference in shape.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 43 shows another example of a cloth frame with a floor according to the present invention. (a) is a partial plan view of the end face of a beam of a cloth frame with a floor, (b) is a front view thereof, (c) is a cross-sectional view taken along line EE of (a) (background not shown) , (D) is a sectional view taken along the line FF of (a) (background not shown).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally cover the entire top of the recess 46 is installed on the outward recess 46. In order to give the open / close lid 80 rigidity, an end portion 85 and an edge portion are provided. 86 are provided. A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  When the opening / closing lid 80 is in a closed state, the lid is held horizontally at the upper surface level of the concave portion of the beam material by the biasing force of the pulling spring 87. The opening / closing lid 80 extends the pulling spring 87 upward by manual operation of the operator and moves the opening / closing lid 80 upward along the long hole 88 when it is necessary to receive the grip of the staircase member in the recess. After being lifted up once, the opening / closing lid 80 is opened by rotating the opening / closing lid 80 to the right around the rotation shaft 81. Therefore, when the open / close lid 80 is closed, the open / close lid 80 installed on the concave portion of the beam material does not rotate upward or downward even if the open / close lid 80 is blown by the wind. Is not lifted unexpectedly, and there is no possibility that the worker will trip over the opening / closing lid 80 and fall down.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is provided below the level of the upper surface of the beam material, concrete, paint, or the like does not adhere during the operation. Even after the frame scaffolding is dismantled, the reinforcing member 47 and the end portion 85 of the opening / closing lid 80 can be removed by using a machine called “Kellen machine” to remove the concrete, paint, etc. adhering to the upper surface of the cloth frame with a floor. Since the connecting rivet 89 and the pulling spring 87 are not on the upper surface of the opening / closing lid 80, the rivet 89 and the pulling spring 87 are not damaged.

  44 and 45 show a procedure for opening the opening / closing lid 80 manually by an operator with respect to the cloth frame with a floor according to the present invention shown in FIG. 44 is a cross-sectional view taken along the line EE of FIG. 43 (a) (background is not shown), and FIG. 45 is a cross-sectional view taken along the line FF of FIG. 43 (a) (background is not shown). Each is shown.

  44 (a) and 45 (a) show a state in which the floor-attached cloth frame is installed in the frame scaffolding by hooking a gripping metal fitting (not shown) of the floor-attached cloth frame onto the horizontal rail 3 of the building frame. is there. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. The opening / closing lid 80 is held horizontally at the upper surface level of the concave portion of the beam material because of the biasing force of the tension spring 87. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the figure, the opening / closing lid 80 can be moved upward by a worker's manual work.

  Next, FIGS. 44 (b) and 45 (b) show that the opening / closing lid 80 is once lifted upward along the long hole 88 against the urging force of the pulling spring 87 by the operator's manual work, and then rotated. A state in the middle of rotating to the right around the shaft 81 is shown.

  44 (c) and 45 (c) show a state after the opening / closing lid 80 is rotated to the right around the rotation shaft 81 by the biasing force of the pulling spring 87. FIG.

  As a result, since the opening / closing lid 80 is opened, it becomes possible to receive the gripping member of the staircase member in the concave portion of the beam material.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 46 shows another example of a cloth frame with a floor according to the present invention. (a) is a partial plan view of the end face of a beam of a cloth frame with a floor, (b) is a front view thereof, (c) is a cross-sectional view taken along line EE of (a) (background not shown) , (D) is a sectional view taken along the line FF of (a) (background not shown).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally cover the entire top of the recess 46 is installed on the outward recess 46. In order to give the open / close lid 80 rigidity, an end portion 85 and an edge portion are provided. 86 are provided. A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  The opening / closing lid 80 can push the convex portion 90 downward from the upper surface of the beam material by an operator hitting the upper surface of the opening / closing lid 80 with a hammer or moving it to exert a wedge effect. Therefore, when the open / close lid 80 is closed, the open / close lid 80 is horizontally fixed to the upper surface level of the concave portion of the beam material by the wedge effect of the convex portion 90. When the opening / closing lid 80 needs to receive the gripping member of the staircase member in the recess, the operator can hit the lower surface of the opening / closing lid 80 with a hammer or move it with force to move the projection 90. The wedge effect of the convex part 90 can be removed by extruding upward from the upper surface of the beam material. Then, the opening / closing lid 80 is once lifted upward along the long hole 88 by an operator's manual operation, and then the opening / closing lid 80 is rotated to the right around the rotation shaft 81 to open the opening / closing lid 80. Yes. Therefore, when the open / close lid 80 is closed, the open / close lid 80 installed on the concave portion of the beam material does not rotate upward or downward even if the open / close lid 80 is blown by the wind. Is not lifted unexpectedly, and there is no possibility that the worker will trip over the opening / closing lid 80 and fall down.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is provided below the level of the upper surface of the beam material, concrete, paint, or the like does not adhere during the operation. Even after the frame scaffolding is dismantled, the reinforcing member 47 and the end portion 85 of the opening / closing lid 80 can be removed by using a machine called “Kellen machine” to remove the concrete, paint, etc. adhering to the upper surface of the cloth frame with a floor. Since the connecting rivet 89 is not on the upper surface of the opening / closing lid 80, the rivet 89 is not damaged.

  47 and 48 show a procedure for opening the opening / closing lid 80 manually by an operator with respect to the cloth frame with a floor according to the present invention shown in FIG. 46. 47 is a cross-sectional view taken along the line EE in FIG. 46 (a) (background is not shown), and FIG. 48 is a cross-sectional view taken along the line FF in FIG. 46 (a) (background is not shown). Show.

  47 (a) and 48 (a) show a state in which the convex portion 90 is pushed downward from the upper surface of the beam member by an operator hitting the upper surface of the opening / closing lid 80 with a hammer or moving it with force. Therefore, the open / close lid 80 is horizontally fixed to the upper surface level of the concave portion of the beam material by the wedge effect of the convex portion 90. And it is the state which installed the cloth frame with a floor in a frame scaffold by hooking the metal fitting (not shown) of the cloth frame with a floor on the horizontal rail 3 of a building frame. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. 47. Since the opening / closing lid 80 is fixed horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the figure, the opening / closing lid 80 can be moved upward by removing the wedge effect of the convex portion 90.

  Next, FIG. 47 (b) and FIG. 48 (b) show that the convex portion 90 is moved above the upper surface of the beam member by moving the lower surface of the opening / closing lid 80 with a hammer or applying force. By pushing out, the wedge effect is removed, and after the operator manually lifts the opening / closing lid 80 upward along the long hole 88 by hand, the opening / closing lid 80 is being rotated to the right around the rotation shaft 81. Indicates the state.

  47 (c) and 48 (c) show a state after the worker manually rotates the open / close lid 80 around the rotation shaft 81 to the right.

  As a result, since the opening / closing lid 80 is opened, it becomes possible to receive the gripping member of the staircase member in the concave portion of the beam material.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 49 shows another example of a cloth frame with a floor according to the present invention. (a) is a partial plan view of the end face of a beam of a cloth frame with a floor, (b) is a front view thereof, (c) is a cross-sectional view taken along line EE of (a) (background not shown) , (D) is a sectional view taken along the line FF of (a) (background not shown).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally cover the entire top of the recess 46 is installed on the outward recess 46. In order to give the open / close lid 80 rigidity, an end portion 85 and an edge portion are provided. 86 are provided. A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  The opening / closing lid 80 can push the protrusion 91 downward from the upper surface of the beam material by an operator hitting the upper surface of the opening / closing lid 80 with a hammer or moving it to exert a wedge effect. Therefore, when the open / close lid 80 is closed, the open / close lid 80 is horizontally fixed to the upper surface level of the concave portion of the beam material by the wedge effect of the protrusion 91. When the opening / closing lid 80 needs to receive the holding member of the staircase member in the concave portion, the operator can hit the lower surface of the opening / closing lid 80 with a hammer or move it with force to move the protrusion 91 to the beam. The wedge effect of the protrusion 91 can be removed by pushing the material upward from the upper surface of the material. Then, the opening / closing lid 80 is once lifted upward along the long hole 88 by an operator's manual operation, and then the opening / closing lid 80 is rotated to the right around the rotation shaft 81 to open the opening / closing lid 80. Yes. Therefore, when the open / close lid 80 is closed, the open / close lid 80 installed on the concave portion of the beam material does not rotate upward or downward even if the open / close lid 80 is blown by the wind. Is not lifted unexpectedly, and there is no possibility that the worker will trip over the opening / closing lid 80 and fall down.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is provided below the level of the upper surface of the beam material, concrete, paint, or the like does not adhere during the operation. Even after the frame scaffolding is dismantled, the reinforcing member 47 and the end portion 85 of the opening / closing lid 80 can be removed by using a machine called “Kellen machine” to remove the concrete, paint, etc. adhering to the upper surface of the cloth frame with a floor. Since the connecting rivet 89 is not on the upper surface of the opening / closing lid 80, the rivet 89 is not damaged.

  FIG. 50 and FIG. 51 show the procedure for opening the opening / closing lid 80 manually by the worker with respect to the cloth frame with a floor according to the present invention shown in FIG. 50 is a cross-sectional view taken along the line EE in FIG. 49 (a) (background is not shown), and FIG. 51 is a cross-sectional view taken along the line FF in FIG. 49 (a) (background is not shown). Show.

  50 (a) and 51 (a) show a state in which the protrusion 91 is pushed downward from the upper surface of the beam member by an operator hitting the upper surface of the opening / closing lid 80 with a hammer or moving it with force. Therefore, the open / close lid 80 is horizontally fixed to the upper surface level of the concave portion of the beam material by the wedge effect of the protrusion 91. And it is the state which installed the cloth frame with a floor in a frame scaffold by hooking the metal fitting (not shown) of the cloth frame with a floor on the horizontal rail 3 of a building frame. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. 47. Since the opening / closing lid 80 is fixed horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the figure, the opening / closing lid 80 can be moved upward by removing the wedge effect of the protrusion 91.

  Next, FIGS. 50 (b) and 51 (b) show that the protrusion 91 is moved above the upper surface of the beam member by moving the lower surface of the opening / closing lid 80 with a hammer or applying force. By pushing out, the wedge effect is removed, and after the operator manually lifts the opening / closing lid 80 upward along the long hole 88 by hand, the opening / closing lid 80 is being rotated to the right around the rotation shaft 81. Indicates the state.

  50 (c) and 51 (c) show a state after the operator manually rotates the opening / closing lid 80 around the rotation shaft 81 to the right.

  As a result, since the opening / closing lid 80 is opened, it becomes possible to receive the gripping member of the staircase member in the concave portion of the beam material.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 52 shows another example of a cloth frame with a floor according to the present invention. (a) is a partial plan view of an end face of a beam of a cloth frame with a floor, (b) is a front view thereof, (c) is a cross-sectional view taken along line AA of (a) (background not shown) , (D) is a cross-sectional view taken along the line B-B of (a) (background is not shown), (e) is a cross-sectional view taken along the line C-C of (a), and (f) is a cross-sectional view taken along the line D-- of (e). D arrow sectional drawing (enlarged view), (g) shows the EE arrow sectional view (enlarged view) of (e), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 of the projecting portion of the beam material in order to reinforce the strength that has been lowered due to the formation of the concave portion 46.

  An opening / closing lid 80 that can horizontally block the entire top of the recess 46 is installed on the outward recess 46. The opening / closing lid 80 is provided with an end portion 85 and an edge portion 86 in order to give rigidity. A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  Further, convex portions (projections) 49 are formed at both ends of the U-shaped reinforcing member 47 joined to the inner peripheral surface of the concave portion 46 of the protruding portion, and when the opening / closing lid 80 is closed, Since it fits into the long hole 88 provided in the end portion 85 of the opening / closing lid 80, the convex portion (projection) 49 does not come off from the long hole 88 provided in the end portion 85 in wind power or the like. 80 is held horizontally at the upper surface level of the outwardly facing recess 46 of the beam.

  When the opening / closing lid 80 needs to receive the gripping member of the staircase member in the recess 46, the opening / closing lid 80 is provided with protrusions (projections) 49 formed at both ends of the U-shaped reinforcing member 47. By manually removing the long hole 88 provided in the end portion 85 of the opening / closing lid 80 and rotating the opening / closing lid 80 to the left around the rotation shaft 81, it is moved downward along the long hole 88. The open / close lid 80 is opened. Therefore, when the open / close lid 80 is closed, the open / close lid 80 installed on the concave portion of the beam material does not rotate upward or downward even if the open / close lid 80 is blown by the wind. Is not lifted unexpectedly, and there is no possibility that the worker will trip over the opening / closing lid 80 and fall down.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is provided below the level of the upper surface of the beam material, concrete, paint, or the like does not adhere during the operation. Even after the frame scaffolding is dismantled, the reinforcing member 47 and the end portion 85 of the opening / closing lid 80 can be removed by using a machine called “Kellen machine” to remove the concrete, paint, etc. adhering to the upper surface of the cloth frame with a floor. Since the connecting rivet 89 is not on the upper surface of the opening / closing lid 80, the rivet 89 is not damaged.

  53 and 54 show the procedure of the operation of opening the opening / closing lid 80 manually by the worker for the cloth frame with a floor according to the present invention shown in FIG. 53 is a sectional view taken along the line AA in FIG. 52 (a) (background is not shown), and FIG. 54 is a sectional view taken along the line BB in FIG. 52 (a) (background is not shown). , Respectively.

  53 (a) and 54 (a) show a state in which the floored cloth frame is installed in the frame scaffolding by hooking a gripping metal fitting (not shown) of the floored cloth frame on the horizontal rail 3 of the building frame. is there. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. Although the opening / closing lid 80 is connected to the opening / closing lid 80, a projection (projection) 49 formed at both ends of the U-shaped reinforcing member 47 is provided in the end portion 85 of the opening / closing lid 80. Are held horizontally at the upper surface level of the concave portion of the beam material. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the figure, the opening / closing lid 80 can be rotated counterclockwise if the operator manually disengages it.

  Next, FIGS. 53 (b) and 54 (b) show that the protrusion (projection) 49 and the long hole 88 are disengaged by the operator's manual operation and the opening / closing lid 80 is moved around the rotation shaft 81 to the left. A state in the middle of moving downward along the long hole 88 is shown.

  53 (c) and 54 (c) show a state after the opening / closing lid 80 has moved downward along the long hole 88. FIG.

  As a result, since the opening / closing lid 80 is opened, it becomes possible to receive the gripping member of the staircase member in the concave portion of the beam material.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 55 shows another example of a cloth frame with a floor according to the present invention. (a) is a partial top view of the end surface of the beam material of a cloth frame with a floor, (b) shows KK arrow sectional drawing of (a).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally cover the entire upper portion of the recess 46 is provided on the outward recess 46, but the open / close lid 80 is provided with an end portion 85 to give rigidity. ing. In order to connect the left and right ends of the reinforcing member 47 and the left and right ends 85 of the opening / closing lid, a long bolt 96 and a nut 97 are provided, and the opening / closing lid 80 is positioned at the center of the long bolt 96. It is attached so that it can rotate downward around 81. However, the long bolt 96 is provided with a stopper 92 and a push spring 94 for preventing the rotation of the opening / closing lid 80 from being lowered between the left and right ends 85 of the opening / closing lid, and the opening / closing lid 80 is closed. In this case, since the downward rotation preventing stopper 92 is pressed against the left end 85 by the urging force of the push spring 94, the opening / closing lid 80 is prevented from rotating downward around the rotation shaft 81. A lid is held horizontally at the upper surface level of the concave portion of the material. Therefore, when the open / close lid 80 is closed, the open / close lid 80 installed on the concave portion of the beam material does not rotate upward or downward even if the open / close lid 80 is blown by the wind. Is not lifted unexpectedly, and there is no possibility that the worker will trip over the opening / closing lid 80 and fall down.

  The opening / closing lid 80 is provided with two cuts 93, and the interval between the cuts is equal to the length of the stopper 92 for preventing rotation below the opening / closing lid 80. Then, when it is necessary to receive the gripping metal of the staircase member in the recess, the operator moves the anti-rotation stopper 92 downward to the right against the urging force of the push spring 94 and then moves downward. The stopper 92 for preventing rotation is aligned with the notch 93 and the stopper 92 is removed to open the opening / closing lid 80 by rotating the opening / closing lid 80 downward about the rotation shaft 81.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is provided below the level of the upper surface of the beam material, concrete, paint, or the like does not adhere during the operation. Also, after dismantling the frame scaffolding, even if the work of removing the concrete and paint attached to the upper surface of the cloth frame with a floor using a machine called “Kellen machine”, the long bolt 96 and nut 97, and the opening and closing Since the stopper 92 and the pressing spring 94 for preventing the rotation downward of the lid 80 are not on the upper surface of the opening / closing lid 80, the long bolt 96 and the nut 97, The pressing spring 94 is not damaged.

  FIG. 56 shows the state of the cloth frame with a floor according to the present invention shown in FIG. 55 after the opening / closing lid 80 is manually opened by an operator. (a) is a partial top view of the center part of the end surface of the beam material of a cloth frame with a floor, (b) shows KK arrow sectional drawing of (a).

  As described above, the opening / closing lid 80 is provided with two cuts 93, and the interval between the cuts is equal to the length of the stopper 92 for preventing rotation below the opening / closing lid 80. When the operator needs to receive the rotation stopper 92, the operator moves the stopper 92 for rotation downward to the right against the urging force of the push spring 94, and then moves the stopper 92 for rotation downward. In accordance with the notch 93, the stopper 92 is removed to open the opening / closing lid 80 by rotating the opening / closing lid 80 downward about the rotation shaft 81.

  Therefore, since the stopper 92 for preventing the downward rotation is installed, the opening / closing lid 80 can be opened only when the gripping member of the staircase member is received in the concave portion of the beam member.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 57 shows another example of a cloth frame with a floor according to the present invention. Each is a cross-sectional view of the end face of the beam material of the cloth frame with a floor, (a) shows a state in which the opening / closing lid 80 is closed, and (b) shows the gripping metal fitting 50 of the staircase member next to the building frame. A state of being hooked on the crosspiece 3 is shown (background not shown).

  As shown in FIG. 57 (a), the beam of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion (not shown), a lower flange 42, and a web having an upper portion inclined outward (FIG. 57). Not shown), and the cross section has an inverted trapezoidal shape. The beam member is provided with a recess (not shown) outward. An opening / closing lid 80 capable of horizontally closing the top of the outward concave portion opens and closes with a bolt 96 and a nut 97 provided on the extension member 48 of the upper flange of the beam member and the extension member 48 of the upper flange of the beam member. It is attached at the same level as the upper flange 41 via a leaf spring 95 joined to the lower part of the lid 80. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the recess. Further, the opening / closing lid 80 is provided with an edge portion 86 in order to give rigidity.

  When the opening / closing lid 80 is closed, the lid is held horizontally at the same level as the upper flange 41 against the gravity of the opening / closing lid 80 by the urging force of the leaf spring 95. Even if the opening / closing lid 80 is squeezed upward or downward by wind power, the biasing force of the leaf spring 95 returns to the same level as the upper flange 41 and the lid is held horizontally. Then, the opening / closing lid 80 applies the artificial force when it is necessary to receive the gripping member of the staircase member in the recess, so that the rotating shaft of the leaf spring 95 is not turned against the urging force of the leaf spring 95 for the first time. It has a structure in which the lid is rotated clockwise around 81 and the lid is opened.

  As an artificial force for opening the opening / closing lid 80, in addition to a manual force by an operator, it is possible to use the force of the downward movement of the gripping metal when the gripping metal of the staircase member is received in the recess. it can.

  Here, since the rotating shaft 81 of the opening / closing lid 80 is located on the leaf spring 95, even if concrete or paint adheres during the operation, there is no hindrance to the rotation, so the lid can be opened. Further, after the frame scaffold is dismantled, the leaf spring 95 is still on the lower surface of the opening / closing lid 80 even if an operation called “Kellen machine” is used to remove concrete, paint, etc. adhering to the upper surface of the cloth frame with a floor. Therefore, the leaf spring 95 is not damaged.

  FIG. 57 (b) shows a state in which the cloth frame with a floor is installed in the frame scaffolding, and the gripping metal fitting 50 of the staircase member is lowered from above and hooked on the horizontal rail 3 of the building frame. When lowering the gripping metal fitting 50 of the staircase member from above, the closed opening / closing lid 80 follows the downward movement of the gripping metal fitting 50 of the staircase member and rotates clockwise around the rotation shaft 81. The holding member 50 for the staircase member can be easily received in the concave portion of the protruding portion of the beam member of the cloth frame with a floor. Here, the operation of opening the opening / closing lid 80 manually by an operator is not necessary.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 58 shows another example of a cloth frame with a floor according to the present invention. Each is a cross-sectional view of the end face of the beam material of the cloth frame with a floor, (a) shows a state in which the opening / closing lid 80 is closed, and (b) shows the gripping metal fitting 50 of the staircase member next to the building frame. A state of being hooked on the crosspiece 3 is shown (background not shown).

  As shown in FIG. 58 (a), the beam of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion (not shown), a lower flange 42, and a web (FIG. Not shown), and the cross section has an inverted trapezoidal shape. The beam member is provided with a recess (not shown) outward. Then, an opening / closing lid 80 made of a rubber material 98 that can horizontally close the upper side of the concave portion is provided on the upper flange 41 via a bolt 96 and a nut 97 provided on the extension member 48 of the upper flange of the beam material. Are attached to the same level. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the recess. In addition, the opening / closing lid 80 made of the rubber material 98 is provided with an edge portion 86 in order to give rigidity.

  The upper surface of the opening / closing lid 80 made of the rubber material 98 is in contact with the upper flange 41 against the gravity of the opening / closing lid 80 made of the rubber material 98 by the urging force of the rubber material 98 when the opening / closing lid 80 is closed. A lid is held horizontally at the same level. Even if the open / close lid 80 is squeezed upward or downward by wind power, it is returned to the same level as the upper flange 41 by the biasing force of the rubber material 98, and the lid is held horizontally. The opening / closing lid 80 made of the rubber material 98 is the first time that the rubber material 98 is against the urging force of the rubber material 98 by applying an artificial force when it is necessary to receive the gripping member of the staircase member in the recess. The structure is such that the lid is opened by rotating clockwise around the rotation shaft 81 of the opening / closing lid 80 made of the material 98.

  As an artificial force for opening the opening / closing lid 80 made of the rubber material 98, in addition to the manual force by the operator, the force of the downward movement of the gripping bracket when the gripping bracket of the staircase member is received in the recess. Can be used.

  Here, since the rotation shaft 81 of the opening / closing lid 80 made of the rubber material 98 is on the rubber material 98, even if concrete or paint adheres during the operation, there is no hindrance to rotation, so the lid is opened. be able to. Further, after the frame scaffolding is dismantled, the rubber material 98 is not damaged even if an operation of removing the concrete, paint, etc. adhering to the upper surface of the cloth frame with a floor using a machine called “Kellen machine”.

  FIG. 58 (b) shows a state in which the cloth frame with a floor is installed in the frame scaffolding, and the gripping metal fitting 50 of the staircase member is lowered from above and hooked on the horizontal rail 3 of the building frame. When lowering the gripping metal 50 of the staircase member from above, the opening / closing lid 80 made of the closed rubber material 98 follows the downward movement of the metal gripping member 50 of the staircase member and moves downward clockwise about the rotation shaft 81. Therefore, the gripping metal fitting 50 of the staircase member can be easily received in the concave portion of the protruding portion of the beam material of the cloth frame with a floor. Here, the operation of opening the opening / closing lid 80 made of the rubber material 98 manually by an operator is not necessary.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 59 shows another example of a cloth frame with a floor according to the present invention. (a) is the fragmentary top view of the end surface of the beam material of the cloth frame with a floor, (b) is the front view, (c) shows the II arrow sectional drawing of (a), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally cover the entire upper portion of the recess 46 is provided on the outward recess 46. The open / close lid 80 is provided with an edge 86 for providing rigidity. ing. Further, the opening / closing lid 80 is provided with an end portion 85, and the end portion of the reinforcing member 47 is provided with a long hole 88 in the horizontal direction. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 88 provided in the end portion of the reinforcing member 47, and the rivet 89 is movable in the long hole 88. Therefore, the opening / closing lid 80 can move left and right along the long hole 88.

  When the opening / closing lid 80 is in a closed state, the lid is held in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam material. The opening / closing lid 80 moves the opening / closing lid 80 to the left along the long hole 88 by applying an artificial force when it is necessary to receive the gripping metal of the staircase member in the recess, and opens / closes The lid 80 is opened. As described above, since the opening / closing lid 80 can move only in the horizontal direction on the left and right, even if the opening / closing lid 80 installed on the concave portion of the beam member is covered with wind, the opening / closing lid 80 is unexpectedly moved. It will not lift.

  As an artificial force for opening the opening / closing lid 80, in addition to a manual force by an operator, it is possible to use the force of the downward movement of the gripping metal when the gripping metal of the staircase member is received in the recess. it can.

  FIG. 60 shows a procedure for opening the opening / closing lid 80 by applying artificial force to the floor-mounted cloth frame according to the present invention shown in FIG. 59. A cross-sectional view taken along arrow II in FIG. 59 (a) is shown.

  FIG. 60 (a) shows a state in which the cloth frame with the floor is installed in the frame scaffolding by hooking a metal fitting (not shown) of the cloth frame with the floor onto the horizontal rail 3 of the building frame. Here, since the lid is horizontally held on the rightmost side of the upper surface of the concave portion of the beam material, the open / close lid 80 horizontally covers the entire upper portion of the concave portion 46 facing the beam material. It is out.

  Next, FIG. 60 (b) shows a state in which the opening / closing lid 80 is opened by moving the opening / closing lid 80 horizontally to the left along the long hole 88 by applying artificial force. As an artificial force, when the worker manually operates, after opening the opening / closing lid 80 by manual operation, it becomes possible to receive the gripping metal fitting of the staircase member in the concave portion of the beam member.

  However, as an artificial force, it is also possible to use the force that is used when the gripping bracket (not shown) of the staircase member is lowered from above and hooked on the horizontal rail of the building frame. That is, following the downward movement of the gripping member 50 of the staircase member, the closed opening / closing lid 80 moves to the left and the opening / closing lid 80 is opened. It can be received in the recess 46 of the protruding portion of the frame beam. At this time, it is not necessary to open the opening / closing lid 80 manually by an operator.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  61 is another example of the cloth frame with a floor according to the present invention, which is a modification of the cloth frame with a floor shown in FIG. (a) is the fragmentary top view of the end surface of the beam material of the cloth frame with a floor, (b) is the front view, (c) shows the II arrow sectional drawing of (a), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally cover the entire upper portion of the recess 46 is provided on the outward recess 46. The open / close lid 80 is provided with an edge 86 for providing rigidity. ing. Further, the opening / closing lid 80 is provided with an end portion 85, and a long hole 99 having a wedge effect is provided at an end portion of the reinforcing member 47 so as to be inclined from the upper left to the lower right. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 99 provided in the end portion of the reinforcing member 47, and the rivet 89 is movable in the long hole 99. Therefore, the opening / closing lid 80 can move left and right along the long hole 99.

  When the opening / closing lid 80 is in a closed state, the lid is fixed in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam member by a long hole 99 having a wedge effect. The entire upper part of the outward facing recess 46 of the beam material is horizontally closed. In this case, the worker moves the rivet 89 to the rightmost side of the long hole 99 by hitting the edge 86 of the opening / closing lid 80 with a hammer or applying force.

  And when this opening / closing lid 80 needs to receive the grip of the staircase member in the concave portion, the worker moves the edge portion 86 of the opening / closing lid 80 leftward with a hammer or force. After the wedge effect is removed, the opening / closing lid 80 is moved to the left along the long hole 99 by applying an artificial force to open the opening / closing lid 80. As described above, since the opening / closing lid 80 can move only in the horizontal direction on the left and right, even if the opening / closing lid 80 installed on the concave portion of the beam member is covered with wind, the opening / closing lid 80 is unexpectedly moved. It will not lift.

  FIG. 62 shows a procedure for opening the opening / closing lid 80 in the cloth frame with a floor according to the present invention shown in FIG.

  FIG. 62 (a) shows a state in which the cloth frame with a floor is installed in the frame scaffold by hooking a gripping metal fitting (not shown) of the cloth frame with a floor onto the horizontal rail 3 of the building frame. Since the lid 80 is horizontally fixed to the rightmost side of the upper surface of the concave portion of the beam member by a long hole 99 having a wedge effect, the open / close lid 80 is located above the concave portion 46 facing the beam member outward. The whole of is closed horizontally.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The projection 44 and the web 43 of the upper flange at the center of the beam material are provided with a recess 46 outwardly, and the strength that has been reduced due to the formation of the recess 46 is reinforced on the inner peripheral surface of the recess 46. Therefore, the point that the U-shaped reinforcing member 47 is joined is the same as FIG. In addition, an opening / closing lid 80 that can horizontally cover the entire upper portion of the recess 46 is installed on the outward recess 46. The opening / closing lid 80 is provided with an end 85 and an edge 86. This is also the same as FIG.

  However, the long hole provided at the end of the reinforcing member 47 is not in the horizontal direction but is inclined as shown in FIG. 62, so that the long hole 99 has a wedge effect. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 99 provided in the end portion of the reinforcing member 47, and the rivet 89 is movable in the long hole 88. Thus, the opening / closing lid 80 can be moved to the left and right along the long hole 99, but when the opening / closing lid 80 is moved to the rightmost side, an operator can hit the end 86 of the opening / closing lid 80 with a hammer to the right or Since the rivet 89 is moved to the rightmost side of the long hole 99 by moving with force, the open / close lid 80 is in a state where the lid is fixed in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam material. .

  Next, in FIG. 62 (b), an artificial force is applied after removing the wedge effect by moving the edge 86 of the opening / closing lid 80 with a hammer or applying force to the left by an operator. Thus, the opening / closing lid 80 is moved to the left along the long hole 99, and the opening / closing lid 80 is opened. As described above, after the opening / closing lid 80 is opened manually by the worker, the gripping metal fitting for the staircase member can be received in the concave portion of the beam member.

  However, after removing the wedge effect by moving the edge 86 of the opening / closing lid 80 with a hammer or applying force to the left side, the manual operation by the worker is not particularly required. It is also possible to use the force when lowering the grab fitting (not shown) of the stair member from above and hooking it on the side rail of the building frame. That is, when the opening / closing lid 80 moves to the left following the downward movement of the gripping member (not shown) of the staircase member, the opening / closing lid 80 is opened. It can be received in the recess 46 of the protruding portion of the beam material. At this time, it is not necessary to open the opening / closing lid 80 manually by an operator.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  63 is another example of the cloth frame with a floor according to the present invention, and is a modification of the cloth frame with a floor shown in FIG. (a) is the fragmentary top view of the end surface of the beam material of the cloth frame with a floor, (b) is the front view, (c) shows the II arrow sectional drawing of (a), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protrusion 44 and the web 43 of the upper flange of the beam material are provided with a recess 46 outward, and the inner peripheral surface of the recess 46 is reinforced with the reduced strength due to the formation of the recess 46. The point that the U-shaped reinforcing member 47 is joined is the same as FIG. In addition, an opening / closing lid 80 that can horizontally cover the entire upper portion of the recess 46 is installed on the outward recess 46. The opening / closing lid 80 is provided with an end 85 and an edge 86. This is also the same as FIG.

  However, the horizontal elongated hole 100 provided at the end of the reinforcing member 47 has two constrictions in the elongated hole. If the rivet 89 is attached to the end portion 85 of the opening / closing lid 80 and there is no constriction in the elongated hole, the rivet 89 can move in the elongated hole 100 from side to side. However, since the constriction is provided on the right side in the long hole, the rivet 89 is constricted on the right side in the long hole even if the opening / closing lid 80 spontaneously moves to the left along the long hole 100. The lid 80 is held in a horizontal state at the rightmost position on the upper surface of the concave portion of the beam material.

  FIG. 64 shows a procedure for opening the opening / closing lid 80 in the cloth frame with a floor according to the present invention shown in FIG. 63. FIG. 61A is a cross-sectional view taken along the arrow I-I in FIG.

  FIG. 64 (a) shows a state in which the floor-attached cloth frame is installed in the frame scaffold by hooking a gripping metal fitting (not shown) of the floor-attached cloth frame onto the horizontal frame 3 of the building frame. The opening / closing lid 80 is held in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam material by the right constriction in the long hole 100, so the opening / closing lid 80 is an outward concave portion of the beam material. The entire top of 46 is closed horizontally.

  Next, in FIG. 64 (b), an artificial force is applied to the opening / closing lid 80 twice in the left direction to move the opening / closing lid 80 to the left along the long hole 100 having two constrictions. The state which opened the lid | cover 80 is shown. Therefore, it becomes possible to receive the holding fitting of the staircase member in the concave portion of the beam member. Here, since the constriction is also provided on the left side in the long hole, the rivet 89 hits the constriction on the left side and stops only by applying artificial force to the opening / closing lid 80 once in the left direction. The lid 80 cannot be moved to the leftmost side along the long hole 100. Therefore, in order to move the opening / closing lid 80 to the leftmost along the long hole 100, it is necessary to apply an artificial force to the opening / closing lid 80 once again in the left direction. As an artificial force, the worker may hit the edge 86 of the opening / closing lid 80 with a hammer to the left, but the worker may simply move the opening / closing lid 80 to the left with force. Good.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 65 is another example of the cloth frame with a floor according to the present invention, and is a modification of the cloth frame with a floor shown in FIG. (a) is the fragmentary top view of the end surface of the beam material of the cloth frame with a floor, (b) is the front view, (c) shows the II arrow sectional drawing of (a), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protrusion 44 and the web 43 of the upper flange of the beam material are provided with a recess 46 outward, and the inner peripheral surface of the recess 46 is reinforced with the reduced strength due to the formation of the recess 46. The point that the U-shaped reinforcing member 47 is joined is the same as FIG. In addition, an opening / closing lid 80 that can horizontally cover the entire upper portion of the recess 46 is installed on the outward recess 46. The opening / closing lid 80 is provided with an end 85 and an edge 86. This is also the same as FIG.

  However, the horizontal long hole 100 provided at the end of the reinforcing member 47 has one constriction on the right side in the long hole. If the rivet 89 is attached to the end portion 85 of the opening / closing lid 80 and there is no constriction in the elongated hole, the rivet 89 can move in the elongated hole 100 from side to side. However, since the constriction is provided on the right side in the long hole, the rivet 89 is constricted on the right side in the long hole even if the opening / closing lid 80 spontaneously moves to the left along the long hole 100. The lid 80 is held in a horizontal state at the rightmost position on the upper surface of the concave portion of the beam material.

  FIG. 66 shows a procedure for opening the opening / closing lid 80 in the cloth frame with a floor according to the present invention shown in FIG. FIG. 61A is a cross-sectional view taken along the arrow I-I in FIG.

  FIG. 66 (a) shows a state in which the floor-equipped fabric frame is installed in the frame scaffolding by hooking a gripping bracket (not shown) of the fabric frame with a floor onto the horizontal rail 3 of the building frame. The opening / closing lid 80 is held in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam material by the right constriction in the long hole 100, so the opening / closing lid 80 is an outward concave portion of the beam material. The entire top of 46 is closed horizontally.

  Next, in FIG. 66 (b), an artificial force is once applied to the opening / closing lid 80 to move the opening / closing lid 80 to the left along the elongated hole 100 having the convex portion, thereby opening and closing the lid 80. Is shown in the open state. Therefore, it becomes possible to receive the holding fitting of the staircase member in the concave portion of the beam member. Here, unlike FIG. 63, since the constriction is not provided on the left side in the elongated hole, it is not necessary to apply an artificial force to the opening / closing lid 80 once again in the left direction. As an artificial force, the worker may hit the edge 86 of the opening / closing lid 80 with a hammer to the right with a hammer, but the worker may simply move the opening / closing lid 80 to the left with force. Good.

  In this case, once artificial force is applied in the left direction and moved leftward along the elongated hole 100 having the convex portion, it is not necessary to perform manual work by an operator from above. It is also possible to use the force when lowering the grab fitting (not shown) of the staircase member and hooking it on the side rail of the building frame. That is, when the opening / closing lid 80 moves to the left following the downward movement of the gripping member (not shown) of the staircase member, the opening / closing lid 80 is opened. It can be received in the recess 46 of the protruding portion of the beam material.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 67 shows another example of a cloth frame with a floor according to the present invention. (a) is the fragmentary top view of the end surface of the beam material of a cloth frame with a floor, (b) is the front view, (c) is a GG arrow sectional view of (a), (d) is (a) ) Is a cross-sectional view taken along the line HH of FIG.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally block the entire upper portion of the recess 46 is provided on the outward recess 46. However, the open / close lid 80 is provided with an end 85, and the reinforcing member 47. A long hole 88 is provided in the horizontal direction at the end of the. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 88 provided in the end portion of the reinforcing member 47, and the rivet 89 is movable in the long hole 88. Therefore, the open / close lid 80 can move left and right along the long hole 88.

  Further, the opening / closing lid 80 is provided with an edge portion 86, and two pressing springs 94 are provided between the edge portion 86 and the reinforcing member 47. When the open / close lid 80 is closed, the lid is held in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam member by the biasing force of the push spring 94. The opening / closing lid 80 applies the artificial force when it is necessary to receive the holding member of the staircase member in the concave portion, so that the opening / closing lid 80 is formed in the elongated hole 88 against the urging force of the push spring 94. The opening / closing lid 80 is opened by moving it to the left along. In this way, the opening / closing lid 80 has a structure that can move only in the horizontal direction on the left and right sides. When the opening / closing lid 80 is closed, the uppermost right side of the upper surface of the concave portion of the beam member is urged by the biasing force of the push spring 94. Since the lid is held in a horizontal state, the opening / closing lid 80 installed on the concave portion of the beam material will not be lifted or opened unexpectedly even if it is blown by the wind. There is no possibility that the person will trip over the opening / closing lid 80 and fall down.

  As an artificial force for opening the opening / closing lid 80, in addition to a manual force by an operator, it is possible to use the force of the downward movement of the gripping metal when the gripping metal of the staircase member is received in the recess. it can.

  68 and 69 show a procedure for opening the open / close lid 80 by applying artificial force to the floor-mounted cloth frame shown in FIG. 67 according to the present invention. 68 shows a cross-sectional view taken along the line GG in FIG. 67 (a), and FIG. 69 shows a cross-sectional view taken along the line H-H in FIG. 67 (a).

  68 (a) and 69 (a) show a state in which the floored cloth frame is installed in the frame scaffolding by hooking a gripping metal fitting (not shown) of the floored cloth frame onto the horizontal frame 3 of the building frame. is there. Here, the opening / closing lid 80 is held horizontally by the urging force of the push spring 94 on the rightmost side of the upper surface of the concave portion of the beam material. The whole of the top is horizontally blocked.

  Since the opening / closing lid 80 is held horizontally to the rightmost side unless an artificial force is applied, the opening / closing lid 80 does not move even if an operator passes over the opening / closing lid 80. As shown in the figure, the opening / closing lid 80 can be horizontally moved to the left along the long hole 88 by applying artificial force.

  Next, in FIGS. 68 (b) and 69 (b), the opening / closing lid 80 is moved horizontally to the left along the long hole 88 against the urging force of the push spring 94 by applying an artificial force. In this state, the opening / closing lid 80 is opened. As an artificial force, when the worker manually operates, after opening the opening / closing lid 80 by manual operation, it becomes possible to receive the gripping metal fitting of the staircase member in the concave portion of the beam member.

  However, as an artificial force, it is also possible to use the force that is used when the gripping bracket (not shown) of the staircase member is lowered from above and hooked on the horizontal rail of the building frame. That is, following the downward movement of the gripping member 50 of the staircase member, the closed opening / closing lid 80 moves to the left against the urging force of the push spring 94, and the opening / closing lid 80 opens. The gripping metal 50 can be easily received in the concave portion 46 of the projecting portion of the beam material of the cloth frame with a floor. At this time, it is not necessary to open the opening / closing lid 80 manually by an operator.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 70 shows another example of a cloth frame with a floor according to the present invention. (a) is a partial top view of the end surface of the beam material of a cloth frame with a floor, (b) shows JJ arrow sectional drawing of (a).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  Two opening / closing lids 80 are installed on the outwardly facing recessed portion 46. When the opening / closing lid 80 is closed, the two opening / closing lids 80 are closed so that the entire upper portion of the recessed portion 46 is covered. It is closed horizontally. The two opening / closing lids 80 are provided with an end portion 85 and an edge portion 86, and the reinforcing member 47 is provided with a long hole (not shown) in the horizontal direction. A bolt 96 and a nut 97 are attached to the edge 86 of the opening / closing lid 80 through a long hole provided in the reinforcing member 47, and the bolt 96 and the nut 97 are movable in the long hole. Therefore, the two opening / closing lids 80 can be opened / closed left and right along the long holes.

  In this way, the two open / close lids 80 can be individually opened and closed to the left and right, and when the open / close lid 80 is closed, the entire upper portion of the concave portion 46 of the beam material is horizontally blocked. Even if the opening / closing lid 80 installed on the concave portion of the material is blown by the wind, the opening / closing lid 80 does not lift or open unexpectedly, so that there is no possibility that the operator will trip over the opening / closing lid 80 and fall down. .

  FIG. 71 shows the floor open cloth lid 80 according to the present invention shown in FIG. 70 in which a worker has opened the left opening / closing lid 80 by manual work. (a) is a partial top view of the center part of the end surface of the beam material of a cloth frame with a floor, (b) shows JJ arrow sectional drawing of (a).

  Thereafter, after the operator manually opens the right opening / closing lid 80, the gripping member of the staircase member can be received in the concave portion of the beam member. In addition, when only the left and right open / close lids 80 are open and the gripping fitting can be received in the concave portion of the beam member, it is not necessary to open both the open / close lids 80 on the left and right sides.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the clearance between the side rail and the side rail can be reduced by closing the open / close lid.

  FIG. 72 shows an example of a cloth frame with a floor having such an opening / closing lid. (a) is an overall plan view of a cloth frame with a floor, (b) is a partial plan view of an ellipse A of the end face of the beam material of (a), (c) is a front view thereof, and (d) is (b) EE arrow sectional drawing (background is not shown), (e) shows the FF arrow sectional drawing (background is not shown) of (b), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An open / close lid 80 that can horizontally block the entire upper portion of the recess 46 is installed on the outward recess 46. In order to give the open / close lid 80 rigidity, two end portions 85 and 85 are provided. Two edges 86a and 86b are provided respectively. A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  When the opening / closing lid 80 is in a state where the holding member of the staircase member is not received in the recess 46, the lid is horizontally held at the upper surface level of the recess of the beam material by the biasing force of the pull spring 87. Therefore, even if the opening / closing lid 80 installed on the concave portion of the beam material is blown by the wind, it does not rotate upward or downward, and therefore the opening / closing lid 80 does not lift up unexpectedly. There is no possibility that the person will trip over the opening / closing lid 80 and fall down.

  FIG. 73 and FIG. 74 show the procedure for opening the opening / closing lid shown in FIG. 72 by the manual operation of the worker. 73 is a cross-sectional view taken along the line EE of FIG. 72 (b) (background is not shown), and FIG. 74 is a cross-sectional view taken along the line FF of FIG. 72 (b) (background is not shown). , Respectively.

  In FIGS. 73 (a) and 74 (a), the cloth frame with the floor is installed in the frame scaffold by attaching the gripping bracket (not shown) of the cloth frame with the floor to the horizontal rail 3 of the building frame. The grip of the staircase member is not received. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. The opening / closing lid 80 is held horizontally at the upper surface level of the concave portion of the beam material because of the biasing force of the tension spring 87. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the drawing, the opening / closing lid 80 can be rotated counterclockwise by the manual operation of the worker.

  Next, FIGS. 73 (b) and 74 (b) show that the opening / closing lid 80 is rotated counterclockwise around the rotation shaft 81 against the urging force of the pulling spring 87 by the operator's manual operation, and then opened / closed. A state in which the lid 80 is moving downward along the long hole 88 by the biasing force of the tension spring 87 is shown.

  73 (c) and 74 (c) show a state after the opening / closing lid 80 has moved downward along the elongated hole 88 by the biasing force of the pulling spring 87. FIG.

  As a result, since the opening / closing lid 80 is opened, it is possible to attach the gripping metal fitting for the staircase member to the concave portion of the beam material.

  FIG. 75 shows the movement when attaching the holding bracket 50 of the staircase member to the horizontal rail 3 of the building frame with the opening / closing lid 80 shown in FIG. 74 (c) opened (the background is shown in FIG. 75). Not shown). FIG. 75 (a) is before the attachment of the stepped member gripping metal piece 50, and FIG. 75 (b) is after the attachment.

  As shown in the figure, the gripping metal 50 for the staircase member can be easily received in the recess 46 of the protruding portion of the beam material of the cloth frame with a floor.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since the lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, it is necessary to receive the vertical column or column of the building frame and the fixing part of the bracket and the holding member of the staircase member. Sometimes you can open the lid, and when you don't accept it, you can close it. Accordingly, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, by closing the open / close lid 80, a gap between the crosspiece and the side rail can be reduced.

  Next, when the above is provided with a lid that can be opened and closed on an outwardly wide notch or recess, and receiving a vertical column or column of a building frame and a fixing part of a bracket and a holding member of a staircase member It has been considered to use a cloth frame with a floor with the lid open and when not receiving it.

  However, the vertical column of the building frame or the fixed part of the column and the bracket is erected in the vertical direction, while the holding bracket of the staircase member is attached diagonally to the horizontal frame of the building frame or the arm lumber. In addition, when attaching and removing the stepping member grip metal fittings, the idea was that when the step member holding metal fittings were received, the lid could be closed and used. That is, when the gripping metal fitting is received or not received in the notch or recess, the notch or recess is held by holding the lid horizontally on the upper surface of the notch or recess. It was closed, and when removing or attaching the gripping metal, I thought that it could be opened manually by rotating its lid.

  FIG. 76 shows a state in which the opening / closing lid 80 shown in FIG. 75 (b) is opened with the gripping metal fitting 50 of the staircase member attached to the crosspiece 3 of the building frame under such an idea. It shows the movement when it is rotated to the right and closed (background not shown). FIG. 76 (a) is before the opening / closing lid 80 is rotated, and FIG. 76 (b) is after the rotation.

  As illustrated, since the outer edge 86b of the two edges 86a and 86b of the opening / closing lid 80 hits the gripping metal 50 of the staircase member, the opening / closing lid 80 cannot rotate to the horizontal level.

  Therefore, when the opening / closing lid is closed and used when the gripping metal fitting for the staircase member is received, the opening / closing lid 80 shown in FIG. 73 can be closed to some extent, but the opening / closing lid 80 remains inclined. It becomes. Therefore, since a little gap remains, there is no denying the possibility that small items such as bolts and nuts will fall.

  FIG. 77 shows an example of the cloth frame with a floor (the present invention) that can be used with the opening / closing lid closed even when the gripping metal fitting for the staircase member is received. (a) is an overall plan view of a cloth frame with a floor, (b) is an enlarged partial plan view of an ellipse A of the end face of the beam material of (a), (c) is a front view thereof, and (d) is (b) ) Is a cross-sectional view taken along the line E-E (background is not shown), and (e) is a cross-sectional view taken along the line F-F (b) (background is not shown).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An opening / closing lid 80 capable of horizontally closing the upper portion of the recess 46 is installed on the outward recess 46. In order to make the opening / closing lid 80 rigid, two end portions 85 and two Edge portions 86a and 86b are respectively provided. However, of the two edge portions 86a and 86b of the opening / closing lid 80, the central portion of the outer edge portion 86b of the portion that hits the gripping metal fitting 50 of the staircase member is largely cut.

  A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  When the opening / closing lid 80 is in a state where the holding member of the staircase member is not received in the concave portion 46, the lid is horizontally held at the upper surface level of the concave portion of the beam material by the biasing force of the pulling spring 87. Therefore, even if the opening / closing lid 80 installed on the concave portion of the beam material is blown by the wind, it does not rotate upward or downward, and therefore the opening / closing lid 80 does not lift up unexpectedly. There is no possibility that the person will trip over the opening / closing lid 80 and fall down.

  78 and 79 show a procedure for opening the opening / closing lid shown in FIG. 77 by a worker's manual work. 78 is a cross-sectional view taken along the line EE in FIG. 77 (b) (background is not shown), and FIG. 79 is a cross-sectional view taken along the line FF in FIG. 77 (b) (background is not shown). , Respectively.

  78 (a) and 79 (a) shows a case where the floor-mounted cloth frame is installed in the frame scaffolding by attaching a gripping bracket (not shown) of the floor-attached cloth frame to the horizontal frame 3 of the building frame. Thus, the gripping member of the staircase member is not received. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. The opening / closing lid 80 is held horizontally at the upper surface level of the concave portion of the beam material because of the biasing force of the tension spring 87. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the drawing, the opening / closing lid 80 can be rotated counterclockwise by the manual operation of the worker.

  Next, FIG. 78 (b) and FIG. 79 (b) show that the opening / closing lid 80 is rotated counterclockwise around the rotation shaft 81 against the urging force of the pulling spring 87 by the operator's manual work, and then opened / closed. A state in which the lid 80 is moving downward along the long hole 88 by the biasing force of the tension spring 87 is shown.

  78 (c) and 79 (c) show a state after the opening / closing lid 80 has moved downward along the long hole 88 by the biasing force of the pulling spring 87. FIG. As a result, the opening / closing lid 80 is open.

  FIG. 80 and FIG. 81 show a procedure for attaching the gripping metal fitting 50 for the stair member when the opening / closing lid 80 shown in FIG. 77 is opened by the operator's manual work. 80 is a cross-sectional view taken along the line EE of FIG. 77 (b) (background is not shown), and FIG. 81 is a cross-sectional view taken along the line FF of FIG. 77 (b) (background is not shown). , Respectively.

  FIG. 80A and FIG. 81A show a state in which the opening / closing lid 80 remains open by the biasing force of the tension spring 87. Before attaching the bracket for the staircase member, the rail bracket 3 for the staircase member is not yet received on the horizontal frame 3 of the building frame.

  Next, FIG. 80 (b) and FIG. 81 (b) are states after the worker has attached the holding bracket 50 of the staircase member to the horizontal rail 3 of the building frame. As shown in the drawing, the gripping metal 50 for the staircase member can be easily received in the concave portion 46 of the beam member of the floored cloth frame.

  Next, FIG. 82 and FIG. 83 show the procedure of the operation of closing the opening / closing lid shown in FIG. 77 when the gripping metal fitting 50 of the staircase member is received by the worker's manual operation. 82 is a cross-sectional view taken along the line EE of FIG. 77 (b) (background is not shown), and FIG. 83 is a cross-sectional view taken along the line FF of FIG. 77 (b) (background is not shown). , Respectively.

  FIG. 82 (a) and FIG. 83 (a) show a state after the worker attaches the gripping metal fitting 50 of the staircase member to the crosspiece 3 of the building frame. Therefore, the opening / closing lid 80 remains open.

  Next, FIG. 82 (b) and FIG. 83 (b) show a state in which the opening / closing lid 80 is being pulled upward along the long hole 88 against the urging force of the pulling spring 87 by the worker's manual work. Show.

  82 (c) and 83 (c) show a state after the opening / closing lid 80 pulled upward is rotated clockwise around the rotation shaft 81. FIG. As shown in the drawing, since the holding member 50 of the staircase member is accommodated in the cut portion 86c at the outer edge of the opening / closing lid, the opening / closing lid 80 is held horizontally on the concave portion 46 of the cloth frame with a floor.

  Therefore, as shown in FIGS. 77 to 83, the beam member recess 46 is not only received in the recess of the beam member but also in the state of receiving it. The opening / closing lid 80 can be held horizontally on the top. At this time, the open / close lid 80 is held horizontally at the upper surface level of the concave portion of the beam material because of the biasing force of the tension spring 87. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since the opening / closing lid is held horizontally and there is almost no gap, there is no possibility that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Then, when removing the gripping metal fitting 50 for the staircase member, the opening / closing lid 80 is moved around the rotation shaft 81 against the urging force of the pulling spring 87 by the operator's manual operation in the reverse procedure to that shown in FIG. After rotating counterclockwise, the lid 80 is opened by moving it downward, and in this state, the gripping member 50 of the staircase member may be removed to the upper right. After the stepping member gripping metal fitting 50 is removed from the horizontal frame 3 of the building frame, it can be closed again by moving the opening / closing lid 80 upward and rotating it to the right in the procedure shown in FIG. At this time, the opening / closing lid 80 is held horizontally at the upper surface level of the concave portion of the beam material due to the urging force of the tension spring 87. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Even after removing the gripping metal fitting 50 of the staircase member from the crosspiece 3 of the building frame, the opening / closing lid can be held horizontally and there is almost no gap, so there is no risk that small items such as bolts and nuts will fall. There is no risk that an operator will trip over the lid.

  Therefore, if all or part of the outer edge 86b of the opening / closing lid 80 is cut, the opening / closing lid 80 is held horizontally at the upper surface level of the concave portion of the beam material. It should be noted that the outer edge 86b of the opening / closing lid 80 may be prevented from colliding with the gripping metal fitting 50 of the staircase member, and at least a portion where the gripping metal fitting 50 of the staircase member abuts may be cut. However, depending on the staircase member, the installation position of the gripping metal may be different, so that the width of the cut portion of the outer edge 86b of the opening / closing lid 80 may be increased or the outer edge of the opening / closing lid 80 may be increased. The entire portion 86b may be cut. However, if the width of the cut portion of the outer edge 86b is too wide, the worker may bend when the worker rides on the cut portion, which may cause anxiety to the worker who passes through the scaffold. When there is such a fear, it is preferable to form a reinforcing rib in the middle of the cut portion.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since a lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, the lid is opened when it is necessary to receive the vertical column of the building frame or the fixed portion of the column and the bracket, And when not accepting, it can be covered. In addition, when the gripping metal fitting of the staircase member is received or not received, the notch or recess is closed by holding the lid horizontally on the upper surface of the notch or recess, Then, when removing or attaching the gripping metal, the lid can be manually rotated and opened. Of course, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the gap between the side rail and the side rail can be reduced by closing the opening / closing lid.

  FIG. 84 shows another example of a cloth frame with a floor according to the present invention. (a) is an overall plan view of a cloth frame with a floor, (b) is an enlarged partial plan view of an ellipse O of the end face of the beam material of (a), (c) is a front view thereof, and (d) is (b) ) AA cross-sectional view (background not shown), (e) is BB cross-sectional view (background not shown), (f) is C- C is a cross-sectional view taken along the arrow C, (g) is a cross-sectional view taken along the arrow D-D (enlarged view) of (f), and (h) is a cross-sectional view (enlarged view) taken along the line EE of (f).

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  An opening / closing lid 80 capable of horizontally closing the upper portion of the recess 46 is installed on the outward recess 46. In order to make the opening / closing lid 80 rigid, two end portions 85 and two Edge portions 86a and 86b are respectively provided. However, of the two edge portions 86a and 86b of the opening / closing lid 80, the central portion of the outer edge portion 86b of the portion that hits the gripping metal fitting 50 of the staircase member is largely cut.

  A long hole 88 is provided in the end portion 85 of the opening / closing lid, and a rivet 89 movable in the long hole 88 connects the reinforcing member 47 and the end portion 85 of the opening / closing lid 80. It can rotate around a rotation shaft 81 located at the center of 89.

  Also, convex portions (protrusions) 49 are formed at both ends of the U-shaped reinforcing member 47 joined to the inner peripheral surface of the concave portion 46 of the protruding portion, and the gripping metal of the staircase member is received in the concave portion 46. When it is not in the state, since it is fitted in the long hole 88 provided in the end portion 85 of the opening / closing lid 80, the convex portion (projection) 49 is extended from the long hole 88 provided in the end portion 85 in wind power or the like. The opening / closing lid 80 is held horizontally at the upper surface level of the outward facing recess 46 of the beam material.

  The opening / closing lid 80 allows the projections (protrusions) 49 formed at both ends of the U-shaped reinforcing member 47 to be formed by the operator when it is necessary to attach the gripping member of the staircase member to the recess 46. By manually removing from the long hole 88 provided in the end portion 85 of the opening / closing lid 80 and rotating the opening / closing lid 80 to the left around the rotation shaft 81, the opening / closing lid 80 is moved downward along the long hole 88. The lid 80 is opened. Therefore, when the step 46 does not receive the stepping member grip metal fittings, the open / close lid 80 is held horizontally at the upper surface level of the outwardly facing concave portion 46 of the beam material and is installed on the concave portion of the beam material. Even if the opened / closed lid 80 is winded, it does not rotate upward or downward, and therefore the open / close lid 80 does not lift up unexpectedly, so that an operator trips over the open / close lid 80 and falls. There is no fear.

  FIG. 85 and FIG. 86 show the procedure for opening the opening / closing lid shown in FIG. 84 by the manual operation of the worker. 85 is a cross-sectional view taken along the line AA in FIG. 84 (b) (background is not shown), and FIG. 86 is a cross-sectional view taken along the line BB in FIG. 84 (b) (background is not shown). , Respectively.

  FIG. 85 (a) and FIG. 86 (a) show a case where the floor-attached cloth frame is installed in the frame scaffolding by attaching a gripping metal fitting (not shown) of the floor-attached cloth frame to the horizontal frame 3 of the building frame. Thus, the gripping member of the staircase member is not received. Here, the opening / closing lid 80 is a reinforcing member that is rotatable around a rotation shaft 81 located at the center of the rivet 89 by a rivet 89 that is movable in a long hole 88 provided in an end portion 85 of the opening / closing lid. 47, but both ends of the U-shaped reinforcing member 47 joined to the inner peripheral surface of the recess 46 of the protrusion are formed with protrusions (projections) 49, Since it fits into the long hole 88 provided in the end portion 85, the convex portion (projection) 49 does not come off from the long hole 88 provided in the end portion 85 in wind power or the like, and the opening / closing lid 80 is a beam material. Are held horizontally at the upper surface level of the outwardly facing recess 46. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. As shown in the drawing, the opening / closing lid 80 can be rotated counterclockwise by the manual operation of the worker.

  Next, FIGS. 85 (b) and 86 (b) show that the protrusion (projection) 49 and the elongated hole 88 are disengaged by the operator's manual operation and the opening / closing lid 80 is moved around the rotation shaft 81 to the left. A state in the middle of moving downward along the long hole 88 is shown.

  85 (c) and 86 (c) show a state after the opening / closing lid 80 has moved downward along the long hole 88. FIG. Since the opening / closing lid 80 is suspended by a rivet 89 in a long hole 88 provided in the end portion 85 of the opening / closing lid, the opening / closing lid 80 remains open due to its own weight. .

  FIGS. 87 and 88 show the procedure of attaching the gripping metal fitting 50 for the stair member when the opening / closing lid 80 shown in FIG. 84 is opened by the operator's manual work. 87 is a sectional view taken along the line AA in FIG. 84 (b) (background is not shown), and FIG. 88 is a sectional view taken along the line BB in FIG. 84 (b) (background is not shown). , Respectively.

  87 (a) and 88 (a), the open / close lid 80 remains open due to its own weight. Before attaching the bracket for the staircase member, the rail bracket 3 for the staircase member is not yet received on the horizontal frame 3 of the building frame.

  Next, FIG. 87 (b) and FIG. 88 (b) are states after the worker attaches the gripping metal fitting 50 of the staircase member to the horizontal rail 3 of the building frame. As shown in the drawing, the gripping metal 50 for the staircase member can be easily received in the concave portion 46 of the beam member of the floored cloth frame.

  Next, FIG. 89 and FIG. 90 show the procedure of the operation of closing the open / close lid shown in FIG. 84 when the gripping metal fitting 50 of the staircase member is received by the worker's manual operation. 89 is a cross-sectional view taken along the line AA in FIG. 84 (b) (background is not shown), and FIG. 90 is a cross-sectional view taken along the line BB in FIG. 84 (b) (background is not shown). , Respectively.

  FIGS. 89 (a) and 90 (a) show a state after the worker has attached the holding bracket 50 of the staircase member to the crosspiece 3 of the building frame. Therefore, the opening / closing lid 80 remains open.

  Next, FIG. 89 (b) and FIG. 90 (b) show a state in the middle of pulling the opening / closing lid 80 upward along the long hole 88 by the worker's manual work.

  89 (c) and 90 (c) show a state after the opening / closing lid 80 pulled upward is rotated clockwise around the rotation shaft 81. FIG. As shown in the drawing, since the holding member 50 of the staircase member is accommodated in the cut portion 86c at the outer edge of the opening / closing lid, the opening / closing lid 80 is held horizontally on the concave portion 46 of the cloth frame with a floor.

  Accordingly, as shown in FIGS. 84 to 90, the beam material recess 46 is not only received in the recess of the beam material but also in the received state. The opening / closing lid 80 can be held horizontally on the top. At this time, convex portions (projections) 49 formed at both ends of the U-shaped reinforcing member 47 joined to the inner peripheral surface of the concave portion 46 of the protruding portion were provided on the end portion 85 of the opening / closing lid 80. Since it fits into the long hole 88, the convex portion (projection) 49 is not detached from the long hole 88 provided in the end portion 85 by wind power or the like, and the open / close lid 80 is formed by the outward concave portion 46 of the beam material. It is held horizontally at the top level. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since the opening / closing lid is held horizontally and there is almost no gap, there is no possibility that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Then, when removing the gripping metal fitting 50 for the staircase member, the opening / closing lid 80 is rotated in the counterclockwise direction around the rotary shaft 81 and then moved downward by the procedure reverse to that shown in FIG. 80 is opened, and in this state, the holding member 50 of the staircase member may be removed to the upper right. After removing the gripping metal fitting 50 of the staircase member from the crosspiece 3 of the building frame, it can be closed again by moving the open / close lid 80 upward and rotating it to the right in the procedure shown in FIG. At this time, convex portions (projections) 49 formed at both ends of the U-shaped reinforcing member 47 joined to the inner peripheral surface of the concave portion 46 of the protruding portion were provided on the end portion 85 of the opening / closing lid 80. Since it fits into the long hole 88, the convex portion (projection) 49 is not detached from the long hole 88 provided in the end portion 85 by wind power or the like, and the open / close lid 80 is formed by the outward concave portion 46 of the beam material. It is held horizontally at the top level. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Even after removing the gripping metal fitting 50 of the staircase member from the crosspiece 3 of the building frame, the opening / closing lid can be held horizontally and there is almost no gap, so there is no risk that small items such as bolts and nuts will fall. There is no risk that an operator will trip over the lid.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since a lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, the lid is opened when it is necessary to receive the vertical column of the building frame or the fixed portion of the column and the bracket, And when not accepting, it can be covered. In addition, when the gripping metal fitting of the staircase member is received or not received, the notch or recess is closed by holding the lid horizontally on the upper surface of the notch or recess, Then, when removing or attaching the gripping metal, the lid can be manually rotated and opened. Of course, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the gap between the side rail and the side rail can be reduced by closing the opening / closing lid.

  FIG. 91 shows another example of a cloth frame with a floor according to the present invention. (a) is an overall plan view of a cloth frame with a floor, (b) is an enlarged partial plan view of an ellipse O of the end face of the beam material of (a), (c) is a front view thereof, and (d) is a front view thereof. (b) AA arrow sectional drawing, (e) shows the BB arrow sectional drawing (background is not shown) of (b), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  91 (d) and 91 (e), an open / close lid 80 that can horizontally block the entire top of the recess 46 is installed on the outward recess 46. As shown in FIG. The opening / closing lid 80 is provided with an end portion 85, and a long hole 99 having a wedge effect is provided at an end portion of the reinforcing member 47 so as to be inclined from the upper left to the lower right. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 99 provided in the end portion of the reinforcing member 47, and the rivet 89 is movable in the long hole 99. Therefore, the opening / closing lid 80 can move left and right along the long hole 99.

  91 (d) and 91 (e), the operator moves the rivet 89 to the rightmost side of the long hole 99 by hitting the opening / closing lid 80 with a hammer or moving it with force. The wedge effect is in effect. In addition, the gripping metal fitting for the staircase member is not received in the recess 46. The opening / closing lid 80 is held in a state of horizontally closing the entire upper part of the outwardly facing concave portion 46 of the beam material, and is fixed to the rightmost side of the long hole 99.

  When the opening / closing lid 80 needs to receive the holding member of the staircase member in the recess, the operator taps the opening / closing lid 80 leftward with a hammer or moves it with force, thereby opening and closing the lid 80. Is moved to the left along the long hole 99 and the opening / closing lid 80 is opened. Thus, since the opening / closing lid 80 has a structure that can move only in the horizontal direction on the left and right, the opening / closing lid 80 installed on the concave portion of the beam material does not naturally move due to wind force or the like.

  FIG. 92 and FIG. 93 show the procedure of attaching the gripping metal fitting 50 of the stair member by opening the opening / closing lid 80 for the cloth frame with a floor according to the present invention shown in FIG. Is. 92 is a cross-sectional view taken along the line AA in FIG. 91 (b), and FIG. 93 is a cross-sectional view taken along the line BB in FIG. 91 (b) (the background is not shown).

  FIG. 92 (a) and FIG. 93 (a) show a state in which the cloth frame with the floor is installed in the frame scaffolding by attaching the gripping bracket (not shown) of the cloth frame with the floor to the horizontal rail 3 of the building frame. Indicates. The grip of the staircase member is not received in the recess. Since the wedge effect is effective, the opening / closing lid 80 is fixed to the rightmost side.

  Next, FIGS. 92 (b) and 93 (b) show that the opening / closing lid 80 is manually opened / closed after removing the wedge effect by hitting the hammer with a hammer or moving it with force. The state is shown in which the lid 80 is moved to the left along the long hole 99 and the opening / closing lid 80 is opened. The open part of the opening / closing lid 80 has a space that can receive the holding member 50 of the staircase member.

  FIG. 92 (c) and FIG. 93 (c) show a state immediately after the gripping metal fitting 50 for the staircase member is attached to the horizontal rail 3 by an operator's manual operation with the opening / closing lid 80 opened.

  92 (d) and 93 (d), the operator moves the opening / closing lid 80 to the right, and then the operator taps the opening / closing lid 80 with a hammer or moves it with force. Indicates the state in which the wedge effect is applied. The gripping metal fitting for the staircase member is received in the recess 46 of the beam material, and the opening / closing lid 80 is fixed to the rightmost side with the wedge effect. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since there is almost no gap, there is no fear that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Then, when removing the gripping metal fitting 50 for the staircase member, the work may be performed in the reverse procedure to that shown in FIGS.

  FIG. 94 and FIG. 95 show the procedure of the work of opening the opening / closing lid 80 and removing the gripping metal fitting 50 of the staircase member for the cloth frame with a floor according to the present invention shown in FIG. Is. 94 shows a cross-sectional view taken along the line AA in FIG. 91 (b), and FIG. 95 shows a cross-sectional view taken along the line BB in FIG. 91 (b) (the background is not shown).

  In FIGS. 94 (a) and 95 (a), a gripping bracket (not shown) for a cloth frame with a floor is attached to the crosspiece 3 of the building frame, and the gripping bracket 50 for a staircase member is an upper flange of a beam member. While being received in the recess 46 of 41, the open / close lid 80 is fixed to the rightmost side with the wedge effect.

  Next, FIGS. 94 (b) and 95 (b) show that the opening / closing lid 80 is manually opened and closed after the wedge effect is removed by the worker hitting the hammer with a hammer or moving it to the left. The state is shown in which the lid 80 is moved to the left along the long hole 99 and the opening / closing lid 80 is opened.

  FIG. 94 (c) and FIG. 95 (c) show a state immediately after the gripping metal fitting 50 for the stair member is removed from the horizontal rail 3 by an operator's manual operation with the opening / closing lid 80 opened.

  In FIGS. 94 (d) and 95 (d), the operator moves the open / close lid 80 to the right, and then the operator taps the open / close lid 80 with a hammer or moves it with force. Indicates the state in which the wedge effect is applied. The opening / closing lid 80 is fixed to the rightmost side in a state in which the wedge effect is effective, in a state where the gripping fitting of the staircase member is not received in the concave portion 46 of the beam material. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since there is almost no gap, there is no fear that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Therefore, as shown in FIGS. 91 to 95, the beam member recess 46 is not only received in the recess of the beam member but also in the state of receiving the step member clamp. The opening / closing lid 80 can be held horizontally on the top. At this time, since the opening / closing lid 80 is fixed to the rightmost side with the wedge effect, the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker. Will not move even if you pass. Since the opening / closing lid is held horizontally and there is almost no gap, there is no possibility that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since a lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, the lid is opened when it is necessary to receive the vertical column of the building frame or the fixed portion of the column and the bracket, And when not accepting, it can be covered. In addition, when the gripping metal fitting of the staircase member is received or not received, the notch or recess is closed by holding the lid horizontally on the upper surface of the notch or recess, Then, when removing or attaching the gripping metal, the lid can be manually rotated and opened. Of course, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the gap between the side rail and the side rail can be reduced by closing the opening / closing lid.

  FIG. 96 shows another example of a cloth frame with a floor according to the present invention. (a) is an overall plan view of a cloth frame with a floor, (b) is an enlarged partial plan view of an ellipse O of the end face of the beam material of (a), (c) is a front view thereof, and (d) is a front view thereof. (b) AA arrow sectional drawing, (e) shows the BB arrow sectional drawing (background is not shown) of (b), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  96 (d) and 96 (e), an open / close lid 80 is installed on the outwardly facing recess 46 so that the entire top of the recess 46 can be horizontally closed. The opening / closing lid 80 is provided with an end portion 85, and the end portion of the reinforcing member 47 is provided with a long hole 100 having constrictions at two locations horizontally. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 99 provided in the end portion of the reinforcing member 47, and the rivet 89 moves left and right in the long hole 100. be able to. However, since the constriction is provided on the right side in the long hole, even if the opening / closing lid 80 spontaneously moves to the left along the long hole 100, the rivet 89 is constricted on the right side in the long hole. Therefore, the opening / closing lid 80 is held in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam material.

  96 (d) and 96 (e) show that when an operator applies an artificial force to the opening / closing lid 80, the opening / closing lid 80 moves to the rightmost side along the long hole 100 having two constrictions. The position is fixed by the constriction. In addition, the gripping metal fitting for the staircase member is not received in the recess 46. The open / close lid 80 is held in a state where the entire upper part of the outward facing concave portion 46 of the beam material is horizontally closed, and is fixed to the rightmost side by a constriction in the long hole.

  When the opening / closing lid 80 needs to receive the gripping member of the staircase member in the recess, the operator applies artificial force to the opening / closing lid 80 so that the opening / closing lid 80 has two constrictions. The opening / closing lid 80 is opened by moving it to the left along the long hole 100. Here, since the constriction is also provided on the left side in the long hole, the rivet 89 hits the constriction on the left side and stops only by applying artificial force to the opening / closing lid 80 once in the left direction. The lid 80 cannot be moved to the leftmost side along the long hole 100. Therefore, in order to move the opening / closing lid 80 to the leftmost along the long hole 100, it is necessary to apply an artificial force to the opening / closing lid 80 once again in the left direction.

  As an artificial force, an operator may strike the opening / closing lid 80 with a hammer with a hammer, or the operator may simply move the opening / closing lid 80 with force.

  In this way, the opening / closing lid 80 has a structure that can move only in the horizontal direction on the left and right sides, and since the position of the opening / closing lid 80 can be fixed by the constriction in the long hole, it is installed on the concave portion 46 of the beam material. The open / close lid 80 does not move naturally by wind force or the like.

  FIGS. 97 and 98 show the procedure of attaching the gripping metal fitting 50 of the stair member by opening the opening / closing lid 80 for the cloth frame with a floor according to the present invention shown in FIG. Is. 97 shows a cross-sectional view taken along the line AA in FIG. 96 (b), and FIG. 98 shows a cross-sectional view taken along the line BB in FIG. 96 (b) (the background is not shown).

  97 (a) and 97 (a) show a state in which the cloth frame with the floor is installed in the frame scaffolding by attaching the gripping bracket (not shown) of the cloth frame with the floor to the horizontal rail 3 of the building frame. Indicates. The grip of the staircase member is not received in the recess. The opening / closing lid 80 is fixed to the rightmost side by the constriction in the long hole.

  Next, in FIGS. 97 (b) and 98 (b), the operator manually passes two constrictions in the long hole through the opening / closing lid 80, and the opening / closing lid 80 is left along the long hole 100. The opening / closing lid 80 is opened. The open part of the opening / closing lid 80 has a space that can receive the holding member 50 of the staircase member.

  97 (c) and 98 (c) show a state immediately after the gripping metal fitting 50 of the staircase member is attached to the cross rail 3 by the worker's manual work while the opening / closing lid 80 is opened.

  97 (d) and 98 (d), the operator manually passes the constriction in two places in the long hole through the opening / closing lid 80, and the opening / closing lid 80 is moved to the right along the long hole 100. The state is shown in which the open / close lid 80 is closed. The gripping bracket of the staircase member is received in the concave portion 46 of the beam material, and the opening / closing lid 80 is fixed to the rightmost side by the constriction in the long hole. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since there is almost no gap, there is no fear that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Then, when removing the gripping metal fitting 50 for the staircase member, the work may be performed in the reverse procedure to that shown in FIGS.

  FIG. 99 and FIG. 100 show the procedure of the work of opening the opening / closing lid 80 and removing the gripping metal fitting 50 of the stair member for the cloth frame with a floor according to the present invention shown in FIG. Is. 99 shows a cross-sectional view taken along the line AA in FIG. 96 (b), and FIG. 100 shows a cross-sectional view taken along the line BB in FIG. 96 (b) (the background is not shown).

  In FIGS. 99 (a) and 100 (a), a grab fitting (not shown) for a cloth frame with a floor is attached to the horizontal rail 3 of the building frame, and the grab fitting 50 for a stair member is an upper flange of a beam member. The open / close lid 80 is fixed to the rightmost side by the constriction in the long hole while being received in the recess 46 of 41.

  Next, in FIGS. 99 (b) and 100 (b), the operator manually passes the constriction in two places in the long hole through the opening / closing lid 80, and the opening / closing lid 80 is left along the long hole 100. The opening / closing lid 80 is opened.

  99 (c) and 100 (c) show a state immediately after the gripping metal fitting 50 of the staircase member is removed from the horizontal rail 3 by the operator's manual work while the opening / closing lid 80 is opened.

  99 (d) and 100 (d), the operator manually passes the constriction at two places in the elongated hole through the opening / closing lid 80, and the opening / closing lid 80 is moved to the right along the elongated hole 100. A state in which the opening / closing lid 80 is opened is shown. The opening / closing lid 80 is fixed to the rightmost side by a constriction in the elongated hole in a state where the gripping metal fitting for the staircase member is not received in the concave portion 46 of the beam member. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since there is almost no gap, there is no fear that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Therefore, as shown in FIGS. 96 to 100, the beam member recess 46 is not only received in the recess of the beam material but also in the received state. The opening / closing lid 80 can be held horizontally on the top. At this time, since the opening / closing lid 80 is fixed to the rightmost side by the constriction in the long hole, the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker. It does not move even if it passes. Since the opening / closing lid is held horizontally and there is almost no gap, there is no possibility that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since a lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, the lid is opened when it is necessary to receive the vertical column of the building frame or the fixed portion of the column and the bracket, And when not accepting, it can be covered. In addition, when the gripping metal fitting of the staircase member is received or not received, the notch or recess is closed by holding the lid horizontally on the upper surface of the notch or recess, Then, when removing or attaching the gripping metal, the lid can be manually rotated and opened. Of course, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the gap between the side rail and the side rail can be reduced by closing the opening / closing lid.

  FIG. 101 shows another example of a cloth frame with a floor according to the present invention. (a) is an overall plan view of a cloth frame with a floor, (b) is an enlarged partial plan view of an ellipse A of the end face of the beam material of (a), (c) is a front view thereof, and (d) is a front view thereof. (b) GG arrow sectional drawing, (e) shows the HH arrow sectional drawing (background is not shown) of (b), respectively.

  Here, the beam material of the cloth frame with a floor is composed of an upper flange 41 having a protruding portion 44, a lower flange 42, and a web 43 having an upper portion inclined outward, and the cross section has an inverted trapezoidal shape. . The protruding portion 44 and the web 43 of the upper flange of the beam material are provided with a concave portion 46 outwardly. A reinforcing member 47 having a U-shaped cross section is joined to the inner peripheral surface of the concave portion 46 in order to reinforce the strength that has decreased due to the formation of the concave portion 46.

  Referring to FIGS. 101 (d) and 101 (e), an open / close lid 80 that can horizontally block the entire top of the recess 46 is provided on the outward recess 46. FIG. The opening / closing lid 80 is provided with an end portion 85, and the reinforcing member 47 is provided with an elongated hole 88 in the horizontal direction. A rivet 89 is attached to the end portion 85 of the opening / closing lid 80 through a long hole 88 provided in the end portion of the reinforcing member 47, and the rivet 89 is movable in the long hole 88. Therefore, the open / close lid 80 can move left and right along the long hole 88.

  Further, the opening / closing lid 80 is provided with an edge portion 86, and two pressing springs 94 are provided between the edge portion 86 and the reinforcing member 47. Therefore, if no artificial force is applied, the urging force of the push spring 94 holds the lid in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam material.

  101 (d) and 101 (e) show a state in which the lid is held in a horizontal state on the rightmost side of the upper surface of the concave portion of the beam member by the biasing force of the push spring 94. FIG. That is, when the opening / closing lid 80 is in a state in which the holding member 50 of the staircase member is not received in the concave portion 46 of the beam material, the opening / closing lid 80 is horizontal to the rightmost side of the upper surface of the concave portion of the beam material by the biasing force of the pressing spring 94. The lid is held in a state.

  The opening / closing lid 80 applies the artificial force when it is necessary to receive the holding member of the staircase member in the concave portion, so that the opening / closing lid 80 is formed in the elongated hole 88 against the urging force of the push spring 94. The opening / closing lid 80 is opened by moving it to the left along. As an artificial force for opening the opening / closing lid 80, the force of the downward movement of the gripping metal when the gripping metal of the staircase member is received in the recess can be used in addition to the manual operation by the worker. . Although not explicitly shown here, by installing a stopper that can fix the opening / closing lid 80 at a position where the opening / closing lid 80 is moved to the left along the long hole 88 against the urging force of the push spring 94. Even if the operator removes his / her hand from the opening / closing lid 80, the opening / closing lid 80 can be held open.

  In this way, the opening / closing lid 80 is structured to be movable only in the horizontal direction on the left and right sides. When the opening / closing lid 80 is not receiving the gripping metal fitting 50 of the staircase member in the concave portion 46 of the beam material, it is pushed. Since the cover is held in the horizontal state on the rightmost side of the upper surface of the concave portion of the beam material by the urging force of the spring 94, the opening / closing lid 80 installed on the concave portion of the beam material is covered with the wind, Since the opening / closing lid 80 does not lift up or open unexpectedly, there is no possibility that the operator may trip over the opening / closing lid 80 and fall down.

  102 and 103 show a procedure for manually attaching the gripping metal fitting 50 for the stair member by opening the opening / closing lid 80 for the floor-mounted cloth frame shown in FIG. Is. 102 shows a cross-sectional view taken along the line GG in FIG. 101 (b), and FIG. 103 shows a cross-sectional view taken along the line HH in FIG. 96 (b) (the background is not shown).

  102 (a) and 103 (a) show a state in which the cloth frame with the floor is installed in the frame scaffolding by attaching the gripping bracket (not shown) of the cloth frame with the floor to the horizontal rail 3 of the building frame. Indicates. The grip of the staircase member is not received in the recess. The opening / closing lid 80 is held to the right by the urging force of the pressing spring 94.

  Next, in FIGS. 102 (b) and 103 (b), the opening / closing lid 80 is moved to the left along the elongated hole 88 against the urging force of the push spring 94 by an operator by hand. The state is shown in which it is moved and the opening / closing lid 80 is opened. The open part of the opening / closing lid 80 has a space that can receive the holding member 50 of the staircase member.

  FIGS. 102 (c) and 103 (c) show a state immediately after the gripping metal fitting 50 for the stair member is attached to the cross rail 3 by an operator's manual operation with the opening / closing lid 80 opened.

  102 (d) and 103 (d), the operator moves the opening / closing lid 80 to the right along the long hole 88 by manual operation or by the biasing force of the push spring 94, and closes the opening / closing lid 80. Shows the state. The opening / closing lid 80 is held to the rightmost side by the urging force of the push spring 94 in a state where the gripping fitting of the staircase member is received in the concave portion 46 of the beam material. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since there is almost no gap, there is no fear that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Then, when removing the gripping metal fitting 50 for the staircase member, the work may be performed in the reverse procedure to that shown in FIGS.

  104 and 105 show a procedure for manually removing the stepped member gripping metal fitting 50 by opening the opening / closing lid 80 of the floor-mounted cloth frame shown in FIG. 101 by the worker's manual work. Is. 104 shows a cross-sectional view taken along line GG in FIG. 101 (b), and FIG. 105 shows a cross-sectional view taken along line HH in FIG. 101 (b) (the background is not shown).

  In FIGS. 104 (a) and 105 (a), a gripping bracket (not shown) of a cloth frame with a floor is attached to the crosspiece 3 of the building frame, and the gripping bracket 50 of the staircase member is an upper flange of a beam material. The open / close lid 80 is fixed to the rightmost side by the urging force of the push spring 94 while being received in the concave portion 46 of 41.

  Next, FIGS. 104 (b) and 105 (b) show that the operator manually moves the open / close lid 80 to the left along the long hole 88 against the urging force of the push spring 94, and opens and closes it. The state which opened the lid | cover 80 is shown.

  104 (c) and 105 (c) show a state immediately after the gripping metal fitting 50 for the staircase member is removed from the horizontal rail 3 by the worker's manual work while the opening / closing lid 80 is opened.

  104 (d) and 105 (d), the operator moves the open / close lid 80 to the right along the long hole 88 by manual operation or by the biasing force of the push spring 94, and closes the open / close lid 80. Shows the state. The opening / closing lid 80 is fixed to the rightmost side by the urging force of the push spring 94 in a state where the gripping fitting of the staircase member is not received in the concave portion 46 of the beam member. Since the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker, the opening / closing lid 80 does not move even if the worker passes over the opening / closing lid 80. Since there is almost no gap, there is no fear that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

  Therefore, as shown in FIG. 101 to FIG. 105, the beam material recess 46 is not only received in the recess of the beam material, but also in the received state. The opening / closing lid 80 can be held horizontally on the top. At this time, since the opening / closing lid 80 is fixed to the rightmost side by the urging force of the push spring 94, the opening / closing lid 80 is held horizontally unless an artificial force is applied by the worker. Will not move even if you pass. Since the opening / closing lid is held horizontally and there is almost no gap, there is no possibility that small items such as bolts and nuts will fall, and there is no possibility that an operator will trip on the opening / closing lid.

In this way, this cloth frame with a floor is provided with a wide concave portion facing outwardly in the beam material, and the center position of the concave portion and the central position of the beam material are made different so that the staircase member can be located at any location. Can also be incorporated. Further, even if a part of the width of the work floor and passage of the frame scaffold is expanded or staging is incorporated, the generation of a gap between the parallel cloth frames with floors is small. Furthermore, since a lid that can be opened and closed is provided on the outward wide concave portion provided in the beam material, the lid is opened when it is necessary to receive the vertical column of the building frame or the fixed portion of the column and the bracket, And when not accepting, it can be covered. In addition, when the gripping metal fitting of the staircase member is received or not received, the notch or recess is closed by holding the lid horizontally on the upper surface of the notch or recess, Then, when removing or attaching the gripping metal, the lid can be manually rotated and opened. Of course, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the gap between the side rail and the side rail can be reduced by closing the opening / closing lid.

  According to the present invention, it is possible to incorporate a staircase member at any location, and even if a part of the working floor of the frame scaffolding and the width of the passage are widened or a staging is incorporated, a cloth frame with a floor with little generation of gaps, It is possible to provide a frame scaffold incorporating the cloth frame with a floor.

  Further, in the present invention, when a lid that can be opened and closed is provided on the wide outward recess provided in the beam material, it is necessary to receive the vertical column of the building frame or the fixing portion of the column and the bracket. The lid can be opened and closed when not received. In this case, when this cloth frame with a floor is used for a normal work floor and a passage of a frame scaffold, the gap between the side rail and the crosspiece can be reduced by closing the opening / closing lid.

  Furthermore, in the present invention, by devising the shape of the opening / closing lid, when the gripping metal fitting of the staircase member is received or not received, the lid is horizontally placed on the upper surface of the notch or recess. The notch or recess can be closed by holding, and the lid can be manually rotated to open when removing or attaching the gripping fitting.

It is an example which forms a frame-type frame scaffold using H frame. It is an example which forms a frame-type frame scaffold using a torii frame. An example of the structure of a tight-binding scaffold is shown. It is an example of the cloth frame with a floor concerning a prior art. It is an enlarged view of the edge part of the cloth frame with a floor concerning the prior art shown in FIG. 2 shows two examples of a cloth frame with a floor according to the prior art. Three examples are shown when a cloth frame with a floor according to the prior art is installed as a work floor and a passage across a crosspiece between adjacent building frames. Two examples are shown when a staircase member is incorporated in a frame scaffold according to the prior art. It is an example which shows the clearance gap which arises at the both ends of the cloth frame with a floor when the cloth frame with a floor concerning a prior art is bridged to the horizontal rail of an adjacent building frame. An example (reference example) in which the end face of a cloth frame with a floor is extended outward is shown. The other reference example which extended the end surface of the cloth frame with a floor to the outward direction is shown. FIG. 11 is another two examples in which a staircase member is installed at a place where the cloth frame with a floor in FIG. 10 is bridged between the horizontal beams of adjacent building frames. FIG. 11 is another two examples in which a staircase member is installed at a place where the cloth frame with a floor in FIG. 10 is bridged between the horizontal beams of adjacent building frames. It is an example (reference example) which attaches the bracket which has a horizontal member of variable length to the outer side of the vertical column of a torii frame. It is an example which expands the width | variety of the work floor of a frame scaffold, and a channel | path using the torii frame shown in FIG. The edge part of an example (reference example) of a cloth frame with a floor which provides an outward recessed part in the center part of a beam material is shown. The state of the edge part of a cloth frame with a floor when the cloth frame with a floor shown in FIG. 16 is bridged between the crosspieces of an adjacent building frame is shown. FIG. 17 is two examples in which a staircase member is installed in a place where a cloth frame with a floor (large anti) shown in FIG. 16 is combined with a small anti and is bridged between horizontal frames of adjacent building frames. FIG. 17 shows two examples in which a staircase member is installed at a place where two pieces of cloth frames with a floor (large anti) shown in FIG. 16 are bridged between horizontal frames of adjacent building frames. It is an example (plan view) which tried to bridge the cloth frame with a floor shown in FIG. 16 on the torii frame shown in FIG. It is an example (reference example) of the cloth frame with a floor which widened the outward notch part or recessed part provided in the center part of a beam material or a protrusion member. FIG. 15 is an example (plan view) in which one sheet of cloth frame with a floor (dissimilar large anti) shown in FIG. 21 is newly bridged on the torii frame shown in FIG. 14 in addition to one existing large anti. In addition to the two cloth frames with floors shown in Fig. 22 (two dissimilar large antis), a plane of the frame scaffold when one small anti 25 (240mm width) is added in parallel to try to bridge the frame. FIG. The width of the outward notch or recess provided in the center of the beam material or protruding member provided at both ends of the cloth frame with floor is widened, and the center position of the notch or recess and the center of the protruding member It is an example (invention example) of a cloth frame with a floor made different from the above. Two examples of installing a staircase member in a place where a cloth frame with a floor (large anti 26) according to an example of the present invention shown in FIG. An overall plan view is shown. The enlarged plan view of the part shown by the ellipse of Fig.25 (a) is shown. This is an example in which a cloth frame with a floor (large anti 26) according to another example of the present invention is combined with a small anti and is bridged between horizontal frames of adjacent building frames. FIG. 27 (a) is an overall plan view, and FIG. 27 (b) is an enlarged plan view of a portion indicated by an ellipse in FIG. 27 (a). This is an example in which, on top of the torii frame shown in FIG. 14, in addition to one existing large anti, one cloth frame with a floor (dissimilar large anti) shown in FIG. FIG. 28 (a) is an overall plan view, and FIG. 28 (b) is an enlarged plan view of a portion indicated by an ellipse in FIG. 28 (a). In addition to the two fabric frames with floors shown in FIG. 28 (two different large anti-frames), the plane of the frame scaffold when one small anti-25 (240 mm width) is added in parallel to try to bridge the frame. FIG. It is an example in which staging is incorporated into a framework scaffold. It is an example of the cloth frame with a floor concerning the present invention. It is the other example of the cloth frame with a floor concerning this invention. It is the other example of the cloth frame with a floor concerning the present invention. It is another example of the cloth frame with a floor concerning the present invention. It is another example of the cloth frame with a floor concerning the present invention. It is another example of the cloth frame with a floor concerning the present invention. It is another example of the cloth frame with a floor concerning the present invention. It is another example of the cloth frame with a floor concerning the present invention. It is another example of the cloth frame with a floor concerning the present invention. The other example of the cloth frame with a floor concerning the present invention is shown. It shows the procedure of the operation | work which opens an opening-and-closing lid | cover about the cloth frame with a floor which concerns on this invention shown in FIG. It is a modification of the cloth frame with a floor shown in FIG. It shows the procedure of the work. The other example of the cloth frame with a floor concerning the present invention is shown. FIG. 45 shows a procedure for opening an opening / closing lid for the floor-equipped cloth frame shown in FIG. 43. FIG. 45 shows a procedure for opening an opening / closing lid for the floor-equipped cloth frame shown in FIG. 43. The other example of the cloth frame with a floor concerning the present invention is shown. 46 shows a procedure for opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 46. 46 shows a procedure for opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 46. The other example of the cloth frame with a floor concerning the present invention is shown. The procedure of the operation | work which opens an opening-and-closing lid | cover is shown about the cloth frame with a floor concerning this invention shown in FIG. The procedure of the operation | work which opens an opening-and-closing lid | cover is shown about the cloth frame with a floor concerning this invention shown in FIG. The other example of the cloth frame with a floor concerning the present invention is shown. 52 shows a procedure for opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 52. 52 shows a procedure for opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 52. The other example of the cloth frame with a floor concerning the present invention is shown. It is the state after opening an opening-and-closing lid | cover about the cloth frame with a floor which concerns on this invention shown in FIG. The other example of the cloth frame with a floor concerning the present invention is shown. The other example of the cloth frame with a floor concerning the present invention is shown. The other example of the cloth frame with a floor concerning the present invention is shown. FIG. 60 shows a procedure for opening an opening / closing lid for the floor-attached cloth frame shown in FIG. 59. FIG. It is the other example of the cloth frame with a floor which concerns on this invention, Comprising: It is a modification of the cloth frame with a floor shown in FIG. 61 shows a procedure for opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 61. It is the other example of the cloth frame with a floor which concerns on this invention, Comprising: It is a modification of the cloth frame with a floor shown in FIG. FIG. 64 shows a procedure for opening the open / close lid for the cloth frame with a floor according to the present invention shown in FIG. 63. FIG. It is the other example of the cloth frame with a floor which concerns on this invention, Comprising: It is a modification of the cloth frame with a floor shown in FIG. FIG. 66 shows a procedure for opening the open / close lid for the cloth frame with a floor according to the present invention shown in FIG. 65. FIG. The other example of the cloth frame with a floor concerning the present invention is shown. FIG. 68 shows a procedure for opening the open / close lid for the cloth frame with a floor according to the present invention shown in FIG. 67. FIG. FIG. 68 shows a procedure for opening the open / close lid for the cloth frame with a floor according to the present invention shown in FIG. 67. FIG. The other example of the cloth frame with a floor concerning the present invention is shown. In the cloth frame with a floor according to the present invention shown in FIG. 70, one opening / closing lid is opened. The other example of the cloth frame with a floor concerning the present invention is shown. 72 shows a procedure for opening the open / close lid for the cloth frame with a floor shown in FIG. 72. 72 shows a procedure for opening the open / close lid for the cloth frame with a floor shown in FIG. 72. FIG. 74 (c) shows the movement when attaching the holding bracket 50 of the staircase member to the crosspiece 3 of the building frame in the state where the opening / closing lid shown in FIG. 74 (c) is opened. FIG. 75 (b) shows a movement when the opening / closing lid 80 is closed by rotating it to the right from the opened state with the gripping metal fitting 50 of the staircase member attached to the horizontal rail 3 of the building frame. The other example of the cloth frame with a floor concerning the present invention is shown. ( FIG. 78 shows a procedure for opening the opening / closing lid shown in FIG. 77. FIG. FIG. 78 shows a procedure for opening the opening / closing lid shown in FIG. 77. FIG. FIG. 77B is a cross-sectional view taken along the line FF in FIG. 77B (the background is not shown). FIG. 78 shows a procedure for attaching the gripping metal fitting 50 of the staircase member when the opening / closing lid 80 shown in FIG. 77 is opened by the operator's manual work. FIG. 78 shows a procedure for attaching a gripping metal fitting for a staircase member when the opening / closing lid shown in FIG. 77 is opened. FIG. 78 shows a procedure for closing the opening / closing lid shown in FIG. 77 when the gripping metal fitting for the staircase member is received. FIG. 78 shows a procedure for closing the opening / closing lid shown in FIG. 77 when the gripping metal fitting for the staircase member is received. The other example of the cloth frame with a floor concerning the present invention is shown. FIG. 87 shows a procedure for opening the opening / closing lid shown in FIG. 84. FIG. 84 shows a procedure for opening the opening / closing lid shown in FIG. 84 by the worker's manual work. 84 shows a procedure for attaching the gripping metal fitting 50 for the stair member when the opening / closing lid shown in FIG. 84 is opened. FIG. 89 shows a procedure for attaching a gripping metal fitting for a staircase member when the opening / closing lid shown in FIG. 84 is opened. FIG. 89 shows a procedure for closing the opening / closing lid shown in FIG. 84 when the gripping metal fitting for the staircase member is received. FIG. 89 shows a procedure for closing the opening / closing lid shown in FIG. 84 when the gripping metal fitting for the staircase member is received. The other example of the cloth frame with a floor concerning the present invention is shown. 91 shows a procedure of an operation of opening the opening / closing lid and attaching the grab fitting for the staircase member with respect to the cloth frame with a floor shown in FIG. 91 shows a procedure of an operation of opening the opening / closing lid and attaching the grab fitting for the staircase member with respect to the cloth frame with a floor shown in FIG. 91 shows a procedure for removing the gripping metal fittings of the staircase member by opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 91. 91 shows the procedure for opening the opening / closing lid and removing the grab fitting for the staircase member with respect to the cloth frame with a floor shown in FIG. 91. The other example of the cloth frame with a floor concerning the present invention is shown. 96 shows a procedure for opening the opening / closing lid and attaching the gripping metal fitting for the staircase member with respect to the cloth frame with a floor shown in FIG. 96. 96 shows a procedure for opening the opening / closing lid and attaching the gripping metal fitting for the staircase member with respect to the cloth frame with a floor shown in FIG. 96. 96 shows a procedure for removing the gripping bracket of the staircase member by opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 96. 96 shows a procedure for removing the gripping bracket of the staircase member by opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 96. The other example of the cloth frame with a floor concerning the present invention is shown. 101 shows a procedure of an operation for opening the opening / closing lid and attaching the gripping metal fitting for the staircase member with respect to the cloth frame with a floor according to the present invention shown in FIG. 101. 101 shows a procedure of an operation for opening the opening / closing lid and attaching the gripping metal fitting for the staircase member with respect to the cloth frame with a floor according to the present invention shown in FIG. 101. 101 shows a procedure for removing the gripping metal fitting of the staircase member by opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 101. 101 shows a procedure for removing the gripping metal fitting of the staircase member by opening the opening / closing lid for the cloth frame with a floor according to the present invention shown in FIG. 101.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 H frame 2 Vertical pillar 3 Horizontal rail 4 Torii frame 5 Horizontal member of variable length 6a, 6b Lock metal fittings 7a, 7b Lock metal fittings 8a, 8b Lock metal fittings 9 Joint metal fittings 10 Handrail frame 11 Cloth frame with floor 13 Stitch 14 Strut DESCRIPTION OF SYMBOLS 15 Handrail 16 Working member 17 Bracket 18 Bracket fixing part 19 Brace material 20 Top 21 Arm lumber 22 Building 25 Small anti 25a Existing small anti 25b New small anti 26 Large anti 26a Existing large anti 26b New large anti 30 Main material 31 Floor material portion 32a, 32b Cloth material portion 33 Lip 34 Rivet hole in cloth material portion 35 Rivet 36 Groove in floor material portion 37 Bending portion of lip 40 Beam material 41 Upper flange of beam material 42 Lower side of beam material Flange 43 Web of beam material 44 Projection of upper flange of beam material 45 Notch of projection of beam material 46 Projection of beam material Projections formed on both end portions of the extension member 49 a reinforcing member of the upper flange of the recess 47 the reinforcing member 48 beam members parts (projections)
50 Grasp metal fitting 51 Rivet hole 52 of grabbing metal fitting 52 Prevention of grip metal fitting 60 Protruding member 61 Protruding member notch portion 62 Concavity of projecting member 63 Rib 70 Crosspiece 71 Embossing 72 Clearance 75 Stair member 76 Stair opening handrail 80 Opening lid 81 Rotating shaft 82 Hinge 83 Coil spring 84 Coil spring mounting hole 85 Opening / closing lid end 86 Opening / closing lid edge 86a Opening / closing lid inner edge 86b Opening / closing lid outer edge 86c Opening / closing lid outer edge cut portion 87 Pull spring 88 Long hole 89 Rivet 90 Convex part with wedge effect 91 Protrusion with wedge effect 92 Stopper for preventing downward rotation 93 Opening and closing lid cut 94 Push spring 95 Leaf spring 96 Bolt 97 Nut 98 Rubber material 99 Long with wedge effect Hole 100 Long hole with projection W ₁ , W ₂ , W ₃ , W ₄ welding

Claims (10)

Long main material or a plurality of long main materials arranged in parallel in the horizontal direction, two beam members attached to both ends of the main material, and fixed to the four corners of both ends of the main material that four gripping a floor with the cloth frame made of metal, in both of the beam member notch or recess of wider outwardly in a non-end portion is formed, and the center of the notch or recess A cloth frame with a floor, characterized in that the position and the center position of the beam are different. A long main material or a plurality of long main materials arranged in parallel in the horizontal direction, two beam members attached to both ends of the main material, and a parallel connection to the outside of both beam materials A floor-mounted cloth frame composed of two projecting members and four gripping brackets fixed to the four corners of both ends of the main material, both projecting members having a wide width outward at the non- ends A cloth frame with a floor, wherein a notch or a recess is formed, and a center position of the notch or recess is different from a center position of the protruding member. A long main material or a plurality of long main materials arranged in parallel in the horizontal direction, two beam members attached to both ends of the main material, and a parallel connection to the outside of one beam material A cloth frame with a floor composed of one protruding member and four gripping brackets fixed to the four corners of both ends of the main material, and the other beam material is wide outward at the non- end portion . A notch or recess is formed, and the center position of the notch or recess is different from the center position of the beam member. Or the recessed part is formed, The center position of the notch or recessed part differs from the center position of a protrusion member, The cloth frame with a floor characterized by the above-mentioned.   The center part of a beam material or a protrusion member is provided with a part of the outward wide notch part or recessed part which is formed in the both ends of a cloth frame with a floor, It is characterized by the above-mentioned. The cloth frame with a floor as described in any of the above.   The floor according to any one of claims 1 to 4, wherein the center positions of the outward wide notches or recesses formed at both ends of the cloth frame with a floor are biased in the same direction. With cloth frame.   The cloth frame with a floor according to any one of claims 1 to 5, wherein a lid that can be opened and closed is provided in the notch or the recess.   A frame scaffold comprising the fabric frame with a floor according to any one of claims 1 to 6.   The frame scaffold according to claim 7, further comprising a step member.   The frame scaffold according to claim 7 or 8, wherein a bracket having a variable length cross member is attached to a part of a vertical column or a column of a building frame constituting the frame scaffold. Framework scaffolding. The framework scaffold according to any one of claims 7 to 9, wherein a staging is incorporated.

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