JP2007327286A - Fence and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fence and its construction method allowing the installation of each member for constituting the fence 1c excluding a panel unit 22 when a scaffolding exists and allowing the erection of the panel unit 22 after removing the scaffolding. <P>SOLUTION: A lower frame 20 supporting the lower side of the panel unit 22 is supported to the surface side of each post 19 liftably through a support bracket 25 and fixably in the vertical position in the tightened state of mounting screws 28, 28. Each panel unit 22 is held between both upper and lower frames 21, 20 by holding each upper edge part in an upper holding groove part 38 of the upper frame 21 and holding a lower edge part in a lower holding groove part 33 of the lower frame 20. Each member for constituting the fence 1c is installed in the installed state of the scaffolding, and the panel unit 22 is erected after lowering the lower frame 20 into an appropriate position after the removal of the scaffolding. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement in a fence used as a fence for a veranda of a high-rise building such as a high-rise apartment and a construction method thereof, and realizes a structure capable of ensuring the safety of a construction worker and the construction method.

  10 to 15 show two examples of fences that can be used as fences for verandas of high-rise buildings such as high-rise apartments. These fences 1 and 1a are constructed on the upper surface of the base 2 such as a relatively low waist or bank made of reinforced concrete. In order to construct the fences 1, 1 a, a plurality of support columns 3, 3 a are fixed on the upper surface of the base 2 in the vertical direction at intervals in the horizontal direction, and the plurality of support columns 3, 3 a A handrail 4 is stretched over the upper end.

  In the case of the structure of the first example shown in FIGS. 10 to 12, the upper surface of the lower frames 5, 5 and the lower surface of the handrail 4 spanned between the portions near the lower end of the middle part of each of the columns 3, 3 A plurality of ribs 6 and 6 are stretched between them. On the other hand, in the case of the structure of the second example shown in FIGS. 13 to 15, a plurality of ribs 6, 6 are spanned between the lower surface of the upper frame 7 and the upper surface of the lower frame 5 a. Both end portions of the plurality of panel units 8 and 8 are supported and fixed to the support columns 3a and 3a by brackets 9 and 9, respectively.

  In any structure, the design of the fences 1 and 1a is greatly influenced by the presence of the support columns 3 and 3a, as is apparent from FIGS. On the other hand, the interval (pitch) between the columns 3 and 3a is generally made as wide as possible within a range in which the fences 1 and 1a can ensure sufficient and necessary strength. Therefore, in the case of the conventional structure, the design of the fences 1 and 1a is limited based on the presence of the support columns 3 and 3a.

  On the other hand, Patent Document 1 describes a fence 1b having a structure as shown in FIGS. In the fence 1b of the third example of the conventional structure, a single lower frame 10 is hung between the support columns 3 and 3 between the support columns 3 and 3 in the middle of the support columns 3 and 3 at a position slightly above the upper surface of the base 2. It is fixed to pass. In addition, one upper frame 11 is fixed between the upper ends of the columns 3 and 3 so as to span between the columns 3 and 3 and in parallel with the lower frame 10. ing. The lower frame 10 holds the lower edge portions of the plurality of panel units 12 and 12, and the upper frame 11 holds the upper edge portions of the panel units 12 and 12.

  In the case of such a structure described in Patent Document 1, the fence 1b is taken from the outside (from the side opposite to the side where the support columns 3 and 3 are installed), as is clear by comparing FIGS. ) The pillars 3 and 3 are not noticeable when viewed. Therefore, the degree of freedom in design of the fence 1b is improved regardless of the interval (pitch) between the adjacent columns 3 and 3. However, there is room for improvement from the viewpoint of improving the efficiency of construction work and ensuring the safety of workers, considering the case of using as a fence installed on the outdoor side end of the veranda of a high-rise building. This point will be described with reference to FIG.

  As in the case of other buildings, a scaffold 14 is assembled as shown in FIG. 18 to facilitate the exterior work of the building 13 during the construction work of a high-rise building such as a high-rise apartment. Also, in the case of a high-rise building, this scaffold 14 does not build a high building that reaches from the ground to the top, but uses units of multiple floors (in the example shown, 3 floors) to progress the construction work. Along with this, the unit is moved upward. That is, when a part of the building 13 including the floor portions 15 and 15 of the veranda is constructed by concrete placing work or the like, the bases of the suspension brackets 16 and 16 provided at the upper and lower ends of the unit are constructed. The base end portions of the connection brackets 17 and 17 called wall connection provided at the end portions and the intermediate portion are respectively locked to the outdoor side (left side in FIG. 18) end portions of the floor portions 15 and 15, respectively. The scaffold 14 is assembled. The scaffold 14 is moved upward as soon as the exterior work is completed, and is used for the exterior work on the upper floor.

  The work of installing the fence on the outdoor side end of each floor 15, 15 is performed in a state where the scaffold 14 exists on the outdoor side of each floor 15, 15 where the fence is to be installed. This is preferable in terms of ensuring ease and safety. However, in the case of the conventional structure described above, it is difficult to perform the fence installation work in a state where the scaffold 14 exists in any structure. This is because the brackets 16 and 17 cannot be disposed between the lower surfaces of the lower frames 5, 5 a, and 10 constituting the lower side of the fence and the upper surface of the base 2.

That is, in the case of a fence installed in a high-rise building, in order to prevent a large article from falling from the veranda, the height H ₁₈ of the gap 18 between the lower surface of the lower frames 5, 5 a and 10 and the upper surface of the base portion 2 ( (Refer to FIGS. 10, 13, and 16). On the other hand, the height dimensions of the brackets 16 and 17 often exceed 80 mm in order to reliably support the heavy scaffolding 14. In particular, the suspension brackets 16 and 16 provided at the upper and lower ends of the unit of the scaffold 14 require a large strength, and in most cases exceed 80 mm. In addition, the brackets 16 and 17 are arranged on the outdoor side end portions of the floor portions 15 and 15 in the vicinity of the upper surface of the floor portions 15 and 15 in the indoor and outdoor directions, that is, the lower frames 5 and 5a. Since it is installed in a direction perpendicular to the arrangement direction of 10, the lower frames 5, 5a and 10 cannot be installed as they are.

  Therefore, conventionally, the fences are installed on the outdoor side ends of the floor portions 15 and 15 in a state where the scaffold 14 does not exist on the outdoor side of the floor portions 15 and 15. However, since such a work is a dangerous work that requires a lifeline, the movement of the worker is restricted (by the lifeline), and the work efficiency is deteriorated. In addition, even after the worker removes the scaffold 14 (moves it to the upper layer) on each of the floor portions 15 and 15, before installing the fence, for reasons other than installing this fence, May come out of the interior of the building. In such a case, it is dangerous if there is no structure for preventing falls such as a fence at the outdoor side ends of the floor portions 15 and 15.

Japanese Patent Laid-Open No. 11-125037

  In the present invention, in view of the circumstances as described above, even when a scaffold is present, each component member of the fence excluding the panel unit can be installed. It was invented to realize a fence structure and a construction method thereof that can be easily and safely performed after removal.

The fence that is the subject of the present invention includes a plurality of support columns, a lower frame, an upper frame, and a plurality of panel units in the same manner as the conventionally known fence described above.
Each of the columns is fixed in the vertical direction with a space in the horizontal direction.
The lower frame is hung between intermediate portions of the support columns in a state of projecting to the front side of the support columns, and has a lower holding groove portion that opens upward.
Further, the upper frame is spanned between the upper portions of the respective struts so as to protrude to the front side of the respective struts, and has an upper holding groove portion opened at the lower side.
Further, each panel unit is held by its lower edge at the lower frame and its upper edge at the upper frame.

In particular, in the fence according to the first aspect of the present invention, the lower frame is supported on the front side of each column through a support bracket.
These support brackets can be moved up and down with the mounting screws loosened in the locking grooves provided in the vertical direction on the front side surfaces of these columns, and the vertical positions are fixed with the mounting screws tightened. Supported as possible.
Furthermore, each said panel unit hold | maintains between the said upper and lower frames by hold | maintaining each upper end edge to the said upper holding groove part, and a lower end edge part to the said lower holding groove part, respectively. is doing.
When implementing such a fence of the present invention, for example, as described in claim 2, the depth of the upper holding groove portion is related to the vertical direction between the upper holding groove portion and the upper edge of each panel unit. The hanging allowance is set to a depth equal to or greater than the sum of the hanging allowance in the vertical direction between the lower end edge of each panel unit and the lower frame. Then, each panel unit is built between the lower frame and the upper frame fixed in advance (prior to the panel unit), and can be held between the two frames.

According to a third aspect of the present invention, there is provided a fence construction method in which the fence according to the present invention as described above is installed at the outdoor side end of a building veranda.
In such a construction method of the fence of the present invention, first, in a state where a scaffold is present on the veranda part, the upper frame is fixed at a position after the fence is completed between the upper ends of the columns, and By moving the support bracket along the locking groove portion, the support frame is positioned above the position after the fence is completed at the intermediate portion in the vertical direction of each column, and the lower frame is placed between the support brackets. The mounting screw is tightened in a state of being stretched, and the lower frame is temporarily fixed between the columns to a position above the completed state.
Thereafter, or prior to fixing the upper frame and the lower frame to the support columns, the base ends of the support columns are supported and fixed to the projectiles.
Next, after removing the scaffold in such a state, the mounting screws are loosened and the support brackets are lowered and fixed together with the lower frame to the position after the fence is completed, and then the lower frame and the upper frame are fixed. Each panel unit is built between the frame.

Also when the fence construction method of the present invention as described above is carried out, for example, as described in claim 4, the depth of the upper holding groove portion is set to the upper end of the upper holding groove portion and each panel unit. The sum of the vertical allowance with the edge and the vertical allowance with the lower end edge of each panel unit and the lower frame is equal to or greater than the total depth.
Then, each panel unit is engaged between the lower frame and the upper frame installed at the completed positions, and the upper edge of each panel unit is engaged with the upper holding groove, and then each panel unit is engaged. Are built in the order of engaging the lower end edge of the lower holding groove with the lower holding groove.

  Moreover, when implementing the construction method of the fence of this invention as mentioned above, Preferably, as described in Claim 5, a screw hole or a through-hole is formed in a part of each said support bracket. In addition, through holes or screw holes are provided at positions corresponding to the screw holes or through holes in the state where the support brackets are moved to positions after completion of the fence, respectively, on the lower front side of the support columns. And after moving each said support bracket to the position after completion of a fence, the screw for fixing screwed in the screw hole formed in each of these support bracket or each said support | pillar is made into these each support | pillar or these each support bracket. It is inserted through the formed through hole. By this operation, the vertical position of each of these support brackets with respect to each of these columns is regulated.

  Or when implementing the construction method of the fence of this invention as mentioned above, Preferably, as described in Claim 6, as the said locking groove part provided in the front side surface of each said support | pillar, of this front side opening part, Use a narrower one with a wider back side. In addition, a mounting screw inserted through the through hole formed in each support bracket from the front side is screwed into the screw hole formed in each locking plate engaged with the locking groove portion so as to be movable in the vertical direction. And the lower end part of each said locking plate is extended below rather than the lower end edge of each of these support brackets, and the upper end of the part which provides each said support | pillar by the lower end edge of these each locking plate in the outdoor side edge part of a veranda The amount of lowering of each of the support brackets is limited by abutting against the bracket.

  Furthermore, the invention described in claim 5 and the invention described in claim 6 can be combined and implemented in a mode as described in claim 7. In this case, the lower end edge of each locking plate is abutted against the upper surface of the portion where the columns are provided at the outdoor side end of the veranda, so that the lowering amount of the support brackets can be reduced toward the support brackets. The formed screw holes or through-holes are aligned with the through-holes or screw holes provided on the above-mentioned support columns, or are positioned slightly below the through-holes or screw holes provided on the support columns. Limit to. And after lowering each said support bracket and abutting the lower end edge of each above-mentioned locking plate to the above-mentioned upper surface, the screw for fixation screwed in the screw hole formed in each of these support brackets or each above-mentioned support, The vertical positions of the support brackets with respect to the columns are regulated by being inserted through the through holes formed in the columns or the support brackets.

  According to the fence of the present invention and the construction method thereof as described above, it is possible to install the constituent members of the fence excluding each panel unit even when a scaffold is present. Can be done easily and safely after the scaffold is removed. In addition, after removing the scaffolding and before completing the installation of each panel unit, it is possible to ensure the safety of workers on the veranda.

  First of all, even if there is a scaffold, the reason why the components of the fence excluding the above panel units can be installed is that each support bracket is assembled to each column so that it can be raised and lowered, and the lower frame is installed after the fence is completed. It is because it can arrange | position above the position of. For this reason, even if there is a hanging bracket or a connecting bracket for installing the scaffold between the lower surface of the lower frame and the upper surface of the part where the fence is installed, such as the outdoor side end of the veranda, Each component described above, that is, a support column, an upper frame, and a lower frame can be installed.

  Next, the reason why each panel unit can be built easily and safely after removing the scaffolding is to install (fix) each component member on the outdoor side end of the veranda before removing the scaffolding. This is because the work can be completed. After removing the scaffold, the work to be carried out to build each panel unit is to lower the lower frame to a predetermined position and then build the panel unit between the lower frame and the upper frame. To do. In the state where these operations are performed, the columns and the upper frame are firmly fixed to the outdoor side end portion of the veranda, and it is not necessary for the operator to perform the operations in an unstable posture. For this reason, the said operation | work can be performed safely.

  Furthermore, after removing the scaffolds and before completing the installation of each panel unit, the reason for ensuring the safety of workers on the veranda is that each column, upper frame, and lower frame are prevented from falling. The purpose is to serve as a fence for the work. In particular, in the state before starting the installation work of each panel unit, since the lower frame exists in the middle in the height direction of each column, the lower frame is the upper surface of the end portion on the outdoor side of the veranda. And the space between the upper frame and the upper frame can be narrowed, and workers can be prevented from falling through this space.

  1 to 10 show an example of an embodiment of the present invention. First, the completed structure of the fence 1c of this example will be described with reference to FIGS. The fence 1 c includes a plurality of support columns 19, 19, a single lower frame 20, a single upper frame 21, and a plurality of panel units 22, 22. The single lower frame 20 and the upper frame 21 mean that a plurality of panel units 22 and 22 are supported by the single lower frame 20 and the upper frame 21. Even when the veranda on which the fence 1c is to be installed is long, it does not mean that one lower frame 20 and upper frame 21 are provided over the entire length of the veranda. The lengths of the lower frame 20 and the upper frame 21 are, for example, about 3 to 5 m in consideration of transport from the factory to the construction site and handling at the construction site.

  Of the above-described constituent members, the support columns 19 are arranged horizontally on the top surface of the base 2 made of concrete, such as a bank, provided on the top surface of the outdoor side end of the floor 15 of the veranda (see FIG. 18). It fixes to the up-down direction (vertical direction) at intervals in the direction (left-right direction of FIGS. 1-2, the front-back direction of FIG. 3) mutually. In the case of this example, each of the support columns 19 and 19 is made of steel or stainless steel and has a tubular inner column 23 with its lower end embedded and fixed to the base 2, and the inner column 23 is not rattled. The outer support 24 is made of an extruded material made of aluminum alloy and is fixed to the inner support 23 by rivets.

  In addition, the lower frame 20 is located between the lower end portions of the middle portions of the support columns 19 and 19, on the front side of the support columns 19 and 19 (on the side that emphasizes the design as a fence, in front of FIG. 1. 2, the lower side of FIG. 2, and the left side of FIG. 3). For this reason, in the case of this example, substantially horizontal T-shaped support brackets 25 and 25 are coupled and fixed to the surface side of the portion near the lower end of the middle part of each support column 19 and 19, respectively. In order to be able to fix each of these support brackets 25, 25, a locking groove portion 26 is provided in the vertical direction on the front side surface of the external column 24 that constitutes each column 19, 19. As shown in FIG. 4, the locking groove 26 has a narrow opening at the front side and a wide width at the back, and a locking plate 27 is moved in the vertical direction to the locking groove 26. Is engaged only (so as not to come out from the opening to the front side). The locking plate 27 is made of a metal plate having sufficient strength and rigidity, such as a stainless steel plate, and is aligned with the opening portion of the locking groove 26 at the center in the width direction at two upper and lower positions. , Each of which forms a screw hole. Then, mounting screws 28 and 28 are inserted into these screw holes, through which through holes provided at both upper and lower ends of the substrate portion 29 constituting the support brackets 25 and 25 are inserted from the front side.

  In a state where both the mounting screws 28 and 28 are loosened, the locking plate 27 and the support brackets 25 and 25 can move in the vertical direction of the support columns 19 and 19 along the locking groove 26. . On the other hand, in a state where both the mounting screws 28 are tightened, a part of the front side plate portion 30 constituting the outer support column 24, which is located on both sides of the locking groove portion 26, is locked. It is strongly sandwiched between the plate 27 and the substrate portion 29. In this state, the vertical positions of the support brackets 25 and 25 are fixed. Furthermore, in the case of this example, the fixing screws 31 and 31 are spanned between the support brackets 25 and the support columns 19 and 19, so that the vertical positions of the support brackets 25 are changed to those after completion. It is designed not to move unintentionally from the proper position.

  For this reason, in the case of this example, a through hole for inserting the fixing screws 31, 31 is formed in a part of the front side plate portion 30 in the portion near the left and right ends of the lower end portion of the substrate portion 29. When the support brackets 25, 25 are moved to proper positions in the completed state, screw holes are formed at positions that align with the through holes. The both fixing screws 31 and 31 are inserted into the through holes from the front side and screwed into the screw holes after the support brackets 25 and 25 are moved to appropriate positions in the completed state. In this state, even if the mounting screws 28, 28 are loosened, the support brackets 25, 25 are not lowered with respect to the columns 19, 19. The through holes and screw holes through which the fixing screws 31, 31 are inserted or screwed are opposite to each other (the screw holes are formed in the board portion 29 and the through holes are formed in the front side plate portion 30). It may be formed. In any case, the screw hole may be a screw hole in a state where the fixing screws 31 are screwed together. In short, the structure may be such that the both fixing screws 31 and 31 are tapping screws and the both fixing screws 31 and 31 are screwed into the lower holes.

  As described above, the lower frame 20, which is fixed to the lower end portion of the front side surface near the middle portion and spans between the support brackets 25, 25, is made of an aluminum alloy extruded mold, Has an open cross-sectional shape. Further, in the case of this example, a pair of horizontal plate portions 32 and 32 projecting in the direction approaching each other from the same height position of both inner side surfaces of the lower frame 20 are provided in the vertical middle portion of the lower frame 20. The lower part holding groove part 33 for holding the lower end edge part of each said panel unit 22 and 22 is formed and formed above these horizontal board parts 32 and 32. As shown in FIG.

  The upper frame 21 is stretched between the upper ends of the support columns 19 and 19 so as to protrude to the front side of the support columns 19 and 19. Therefore, in the case of this example, a plurality of central portions in the length direction (front and back direction in FIG. 3) of the flat support plate 34 are formed on the upper end portions of the external struts 24 constituting the respective struts 19, 19. Are fixed by tapping screws 35, 35. The tapping screws 35 and 35 are screwed into the tapping grooves 36 and 36 existing on the inner peripheral surface portion of the external support 24 in a state where the through holes formed in the support plate 34 are inserted from above, and further tightened. To do. The length dimension of the support plate 34 in the length direction of the upper frame 21 (the left-right direction in FIGS. 1 and 2 and the front and back direction in FIG. 3) is larger than the width dimension of the support columns 19 and 19 in the same direction. . Therefore, both end portions in the length direction of the support plate 34 protrude from both side surfaces of the support columns 19 and 19. The upper frame 21 is formed by a plurality of set screws 37, 37 inserted through both ends in the length direction of the support plate 34 from below, through the support plate 34, and the upper end portions of the support columns 19, 19. Is supported and fixed.

In this way, the front half of the upper frame 21 supported and fixed to the upper ends of the support columns 19 and 19 protrudes (overhangs) from the support columns 19 and 19 to the front side. And on the lower surface of the upper frame 21, an upper holding groove portion 38 having an opening at the lower side is provided in a portion protruding to the front side from each of the columns 19, 19. In the case of this example, the depth H ₃₈ of the upper holding groove 38 is sufficiently larger than the depth required to hold the upper edge of each panel unit 22, 22. Specifically, the depth H ₃₈ is set to a vertical allowance H _H between the upper edge of each panel unit 22, 22 and the upper holding groove 38, and the lower end of each panel unit 22, 22. The depth is equal to or greater than the sum of the vertical allowance H _L between the edge and the lower frame 20 (H ₃₈ ≧ H _H + H _L ). Then, by securing the depth H ₃₈ of the upper holding groove portion 38 in this way, the panel units 22, 22 are interposed between the lower frame 20 and the upper frame 21 that are fixed in advance at positions after completion. And can be held between the two frames 20 and 21.

  Each of the panel units 22 and 22 is built in the same manner as a sliding door type sliding door shoji or glass shoji between the upper holding groove 38 and the lower holding groove 33 as described above. It is built in a certain Kendon style. In the case of this example, each of the panel units 22 and 22 is formed by surrounding a rectangular glass panel 39 with an upper rod 40, a lower rod 41, and left and right rods 42 and 42. Each of the panel units 22 and 22 holds the lower collar 41 positioned at the lower edge of the panel unit in the lower holding groove 33 and the upper collar 40 constituting the upper edge of the panel unit 22, 22. It is built between the lower frame 20 and the upper frame 21 while being held in the upper holding groove portion 38.

Next, the construction method of the fence 1c having the above-described configuration will be described.
First, in the state where the scaffold 14 exists as shown in the above-mentioned FIG. 18 on the veranda portion where the fence 1c is to be installed, the base end portion, that is, the lower end portion of each of the columns 19, 19 is a frame. It is supported and fixed on the upper surface of the base portion 2 provided on the upper surface of the outdoor side end portion of the floor portion 15 of the veranda. In this operation, the lower end portions of the support columns 19 and 19 are loosely inserted into the support holes 43 provided in an open state on the upper surface of the base portion 2, and the outer peripheral surfaces of the lower end portions of the support columns 19 and 19 and the support holes. The mortar 44 is filled in a gap between the inner peripheral surface 43 and the inner peripheral surface.

  The panel units 22 and 22 are built after the mortar 44 is sufficiently solidified. However, spanning of the upper frame 21 between the upper ends of the columns 19 and 19 is preferably performed before the mortar 44 is filled with the lower ends of the columns 19 and 19. This is performed before insertion into the support hole 43. For example, the upper frame 21 may be bridged between the upper ends of the columns 19 and 19 in advance at the factory. In addition, the internal struts 23 and the external struts 24 constituting the respective struts 19 are also combined in advance at the factory. Accordingly, the positional relationship between the support columns 19 and 19 and the upper frame 21 is an appropriate relationship after completion before the support columns 19 and 19 are fixed. And, for example, a support bar or the like is temporarily installed between the upper frame 21 and the veranda portion, the outer wall surface of the building, or the like and a fixed portion other than the scaffold 14, and the support columns 19 and 19 are arranged in the vertical direction. As it is, it is fixed to the upper surface of the outdoor side end portion of the floor portion 15.

  Also, the lower frame 20 is spanned between the support columns 19 and 19 before the lower ends of the support columns 19 and 19 are inserted into the support holes 43. For this purpose, the support brackets 25 and 25 are mounted in advance on the front side surfaces of the support columns 19 and 19 at the factory. Similarly, the lower frame 20 may be spanned between the support columns 19 and 19 in advance at the factory. However, with respect to the support brackets 25 and 25 and the lower frame 20, when the base end portions of the support columns 19 and 19 are supported and fixed to the upper surface of the base portion 2, as shown in FIGS. At the same time, it is temporarily fixed to the intermediate portion in the height direction of each of the columns 19 and 19 above the completed position. This temporary fixing is performed by moving the support brackets 25 and 25 to the positions shown in FIGS. 5 to 6 in a state where both the mounting screws 28 and 28 are loosened, and then tightening both the mounting screws 28 and 28. By doing things.

  In the case of this example, as described above, the work of supporting and fixing the support columns 19, 19 and the upper frame 21 and the lower frame 20 to the upper surface of the base 2 is performed above the position after the completion of the lower frame 20 It is done in the state moved to. For this reason, this lower frame 20 does not interfere with the suspension bracket 16 and the connection bracket 17 (see FIG. 18) for supporting the scaffold 14 on the floor portions 15 and 15 of the veranda. Therefore, the operation of supporting and fixing the members 19, 20, and 21 on the upper surface of the base 2 can be performed in a state where the scaffold 14 exists on the outside of the veranda. For this reason, this supporting and fixing work can be performed safely without using a lifeline or the like, and the installation work of the fence 1c can be made more efficient.

  The panel units 22 and 22 are built after the scaffold 14 is removed (lifted to an upper floor) and then the lower frame 20 is lowered to an appropriate position after completion. In addition, the operation | work which lowers the lower frame 20 in this way is performed immediately before the said construction work. In the meantime, the lower frame 20 is stopped at the position shown in FIGS. In this state, each of the members 19, 20, 21 including the lower frame 20 functions as a safety fence for preventing an operator from dropping from the floor portion 15.

  After the scaffold 14 is removed, in order to fix the lower frame 20 in an appropriate position after completion in order to perform the erection operation, the mounting screws 28 and 28 are loosened, and the arrow shown in FIG. Similarly, together with the support brackets 25, 25, the lower frame 20 is lowered to an appropriate position. Then, the fixing screws 31 and 31 are screwed together from the front side, and the height positions of the support brackets 25 and 25 are fixed. The locking plate 27 for screwing both the mounting screws 28, 28 is extended below the base plate 29 of each support bracket 25, and the lower end edge of the locking plate 27 is the bottom edge. If the through hole for inserting or screwing each of the fixing screws 31 and 31 is aligned or positioned in the vicinity of the upper surface of the base 2, the lower frame 20 is properly It is possible to easily perform the work of lowering to the position and fixing to the proper position.

In any case, if the lower frame 20 is lowered and fixed to an appropriate position, the panel units 22 and 22 can be built. This erection operation is performed in the Kendon style as described above. In this case, a smaller (W ₂₂ <D ₁₉₎ than the distance D ₁₉ of the struts 19 and 19 between which the width W ₂₂ of each panel unit 22, 22 adjacent, otherwise (W ₂₂ ≧ D ₁₉ ) The direction of building differs depending on the case.

When the width dimension W ₂₂ is smaller than the distance D ₁₉ , the single panel unit 22 is kept in the position at the time of installation (the lower frame 20, the upper frame 21, the lower rod 41, the upper rod 40, Can be passed between adjacent struts 19, 19. Therefore, as shown in FIG. 8, the panel units 22 are inclined one by one in the direction toward the front side (outdoor side) toward the top, and between the lower frame 20 and the upper frame 21. Approach from the back side (indoor side). Then, the upper collar 40 is caused to enter the upper holding groove 38, and the panel unit 22 is directed in the vertical direction while pushing the upper collar 40 to the back of the upper holding groove 38. As a result, in the state in which the upper collar 40 has reached the inner end of the upper holding groove portion 38, the lower collar 41 is positioned directly above the lower holding groove portion 33, so that the panel unit 22 is lowered, The lower collar 41 is inserted into the lower holding groove 33. In this state, the upper edge of the panel unit 22 is held on the upper frame 21 and the lower edge is held on the lower frame 20.

On the contrary, if the width W ₂₂ is greater than or equal to the above distance D ₁₉ is a single panel unit 22, while the attitude of the time like an anchor, adjacent struts 19 and 19 to each other It cannot be passed between. Therefore, in this case, as shown in FIG. 9, the panel unit 22 is inclined and passed between the adjacent support columns 19, 19, and then the panel unit 22 is moved from the front side to the upper frame. It is built between 21 and the lower frame 20. The procedure of the erection work in this case is performed in the same manner as the case of erection from the back side as described above, except that the inclination direction of the panel unit 22 is reversed. In any case, the panel unit 22 is handled using a handling jig equipped with a suction cup.

Or although not shown in figure, when the length of a veranda is long and the said lower frame 20 is what connected and comprised two or more in series, the said panel unit 22 is built in a slide type instead of a Kendon type. You can also do things. In this case, for example, the lower frame at the end in the horizontal direction is removed, and the panel units 22 and 22 are slid between the remaining lower frame 20 and the upper frame 21 so as to push the shutter from the door pocket to the shutter rail. Include. However, with respect to the horizontal end portion, the lower frame 20 that has been removed is attached, and then built in the Kendon style.
In any case, as shown in FIGS. 8 to 9, a commercially available support jig 46 for bringing the lower side of the panel unit 22 into contact with the portion to be built at the upper end portion of the floor portion of the veranda. 46 to support the weight of the panel unit 22 and prevent the panel unit 22 from being dropped during the installation work.

  According to the fence of this example and the construction method thereof as described above, each component of the fence excluding each panel unit can be installed even when a scaffold exists for the reasons described above. These panel units can be easily and safely built after the scaffold is removed. In addition, after removing the scaffolding and before completing the installation of each panel unit, it is possible to ensure the safety of workers on the veranda.

Furthermore, according to the structure of this example, the design is not easily influenced by the interval (pitch) between the support columns 19 and 19, and the construction work and the repair work can be performed by a small number of people.
First, the panel units 22 and 22 are provided between the upper frame 21 and the lower frame 20 provided between the support columns 19 and 19 so as to protrude to the front side of the support columns 19 and 19. Therefore, most of the columns 19, 19 are hidden behind the panel units 22, 22, and do not appear on the front side where the design is regarded as important. Therefore, when considering the design of the fence, it is not necessary to associate the width and pitch of the panel units 22 and 22 with the pitch of the support columns 19 and 19. As a result, the degree of freedom in design design is improved.

The figure which looked at the fence from the front side which shows an example of embodiment of this invention. The expanded AA sectional view of FIG. The expanded BB sectional drawing. Sectional drawing which took out the external support | pillar out of the support | pillar, and was seen from the same direction as FIG. The figure which looked at the state which temporarily fixed the lower frame in the upper position rather than the state after completion for prevention of a worker's fall. FIG. 6 is an enlarged CC cross-sectional view of FIG. 5. The perspective view of the part which is supporting the lower frame with respect to the support | pillar. The perspective view which shows the 1st example of the state which mounts a panel unit between this lower frame and an upper frame after lowering a lower frame to the position after completion in the state seen from the veranda side. The perspective view which shows the 2nd example. The figure similar to FIG. 1 which shows the 1st example of a conventional structure. FIG. 11 is an enlarged DD cross-sectional view of FIG. 10. The expanded EE sectional drawing. The figure similar to FIG. 1 which shows the 2nd example of conventional structure. FIG. 14 is an enlarged FF sectional view of FIG. 13. The expanded GG sectional drawing. The figure similar to FIG. 1 which shows the 3rd example of conventional structure. FIG. 17 is an enlarged HH sectional view of FIG. 16. The schematic side view which shows the scaffold assembled in order to build a high-rise building.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c Fence 2 Base 3, 3a Post 4 Handrail 5, 5a Lower frame 6 Gutter 7 Upper frame 8 Panel unit 9 Bracket 10 Lower frame 11 Upper frame 12 Panel unit 13 Building 14 Scaffold 15 Floor 16 Suspension bracket 17 Connection bracket 18 Clearance 19 Support 20 Lower frame 21 Upper frame 22 Panel unit 23 Internal support 24 External support 25 Support bracket 26 Locking groove 27 Locking plate 28 Mounting screw 29 Substrate portion 30 Front side plate 31 Fixing screw 32 Horizontal flat plate portion 33 Lower holding groove portion 34 Support plate 35 Tapping screw 36 Tapping groove 37 Set screw 38 Upper holding groove portion 39 Glass panel 40 Upper ridge 41 Lower ridge 42 ４３ 43 Support hole 44 Mortar 45 Fixed screw 46 Support treatment Ingredients

Claims (7)

  A plurality of struts fixed in the vertical direction with a space between each other in the horizontal direction, and the middle part of each strut spanned between the struts in a state of projecting to the front side. The lower frame having the lower holding groove portion and the upper frame having the upper holding groove portion opened between the upper portions of the support columns and projecting to the front side of the support columns. And a plurality of panel units each held by each lower end edge in the lower frame, each upper end edge in the upper frame, and the lower frame, The support brackets are supported on the front side of the support columns via support brackets, and these support brackets can be moved up and down in the state where the mounting screws are loosened in the locking grooves provided in the vertical direction on the front side surfaces of these support columns, and With this mounting screw tightened The lower position is supported so that it can be fixed, and each panel unit has its upper end edge portion held in the upper holding groove portion and the lower end edge portion held in the lower holding groove portion, respectively. A fence characterized by being held between the upper and lower frames.   The depth of the upper holding groove portion is defined as the vertical allowance between the upper holding groove portion and the upper edge of each panel unit, and the vertical allowance between the lower edge of each panel unit and the lower frame. The above-mentioned panel units are built between a lower frame and an upper frame that are fixed in advance in advance, and can be held between these two frames. The fence described in.   A plurality of struts fixed in the vertical direction with a space between each other in the horizontal direction, and the middle part of each strut spanned between the struts in a state of projecting to the front side. The lower frame having the lower holding groove portion and the upper frame having the upper holding groove portion opened between the upper portions of the support columns and projecting to the front side of the support columns. And a plurality of panel units held by the respective lower end edges of the lower frame and the upper end edges of the upper frame, respectively. The lower frame is supported on the front side of each of the columns. These support brackets can be moved up and down with the mounting screws loosened in the locking grooves provided in the vertical direction on the front side surfaces of these columns, and the mounting screws are tightened. The vertical position can be fixed in the Each of the panel units is held between the upper and lower frames by holding the upper edge of the panel unit in the upper holding groove and the lower edge of the panel unit in the lower holding groove. A fence construction method in which a fence held in between is installed on the outdoor side end of a building veranda, and a scaffold is present on the veranda, and between the upper ends of each column. The upper frame is fixed at a position after the fence is completed, and the support brackets are moved along the locking groove portions, so that they are positioned above the position after the fence is completed in the vertical middle portion of the columns. In addition, the mounting screw is tightened in a state where the lower frame is spanned between the support brackets, and the lower frame is temporarily fixed between the support columns at a position higher than the completed state. After this After removing the scaffolding with the base end of each strut supported and fixed to the projectile, loosen the mounting screw and lower the supporting bracket together with the lower frame to the position after the fence is fixed. The construction method of the fence which builds each said panel unit between this lower frame and the said upper frame.   The depth of the upper holding groove portion is defined as the vertical allowance between the upper holding groove portion and the upper edge of each panel unit, and the vertical allowance between the lower edge of each panel unit and the lower frame. The above-mentioned panel units are engaged between the lower frame and the upper frame installed at positions after completion, and the upper edge of each panel unit is engaged with the upper holding groove. The fence construction method according to claim 3, wherein the lower end edge of each panel unit is built in the order in which the lower holding groove is engaged.   A screw hole or a through hole is formed in a part of each support bracket, and is aligned with the screw hole or the through hole in the state where the support bracket is moved to the position after the fence is completed at the lower front side of each column. A through hole or a screw hole is provided at the position, and after moving each of the support brackets to the position after the fence is completed, the fixing brackets are screwed into the screw holes formed in the support brackets or the support columns. The vertical position of each of these support brackets with respect to each of these columns is regulated by inserting a screw through each of the columns or through holes formed in each of these support brackets. The construction method of the fence described in 2.   The locking groove provided on the front side surface of each strut has a narrow front opening and a wide back side, and each engagement is engaged with the locking groove so as to be movable in the vertical direction. A mounting screw inserted from the front side through a through hole formed in each support bracket is screwed into a screw hole formed in the stop plate, and the lower end portion of each locking plate is lower than the lower end edge of each support bracket. The lower end edge of each of the locking plates is abutted against the upper surface of the portion where each of the columns is provided at the outdoor side end of the veranda, thereby limiting the descending amount of each of the support brackets. The construction method of the fence described in any one of 5.   A screw hole or a through hole is formed in a part of each support bracket, and is aligned with the screw hole or the through hole in the state where the support bracket is moved to the position after the fence is completed at the lower front side of each column. A through hole or a screw hole is provided at the position, and the locking groove provided on the front side surface of each support column has a narrow width on the front opening and a wide width on the back side. A mounting screw that is inserted through a through hole formed in each support bracket from the front side is screwed into a screw hole formed in each locking plate that is engaged with the groove portion so as to be movable in the vertical direction. By extending the lower end of the plate below the lower end edge of each of these support brackets, but by striking the lower end edge of each of these locking plates against the upper surface of the portion where the above-mentioned pillars are provided at the outdoor side end of the veranda, The lowering amount of each of the above support brackets is determined by each of these support brackets. The screw holes or through holes formed on the side are aligned with the through holes or screw holes provided on the respective column sides, or are positioned slightly below the through holes or screw holes provided on the respective column sides. The support brackets are lowered, the lower end edges of the locking plates are brought into contact with the upper surface, and then screwed into the screw holes formed in the support brackets or the support columns. 5. The vertical position of each of the support brackets with respect to each of the support columns is regulated by inserting the fixed screws into the through holes formed in the support columns or the support brackets. 5. A method for constructing a fence according to item 1.

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