JP2012149408A - Foldable l-shaped baseboard and temporary scaffold incorporating the l-shaped baseboard therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable L-shaped baseboard capable of preventing a gap filling board from being lifted even when wind is blown up from below after the gap filling board is developed and maintaining the folded state regardless of the direction of the gap filling board after the gap filling board is folded.SOLUTION: A foldable L-shaped baseboard comprises a baseboard body 31 and a gap filling board 36 attached to the baseboard body by means of a hinge structure, wherein a lock pin 39 that has a hook at its upper end and is vertically operable is vertically attached to the baseboard body while being provided with a downward energizing force, an angle 40 is attached at the base end of the gap filling board corresponding to the position in which the lock pin is attached, the angle is enabled to abut the lower end 39a of the lock pin when the gap filling board is developed, when the gap filling board is folded, the hook 39b of the lock pin is enabled to hook the gap filling board, whereby both developed state and folded state can be maintained.

Description

  The present invention relates to a foldable L-shaped baseboard installed on the edge of a scaffolding plate constructed as a work floor or a worker's passage in a temporary scaffold used indoors and outdoors in a construction site such as a construction site or a civil engineering site. The present invention relates to a temporary scaffold incorporating the L-shaped baseboard.

  Temporary scaffolds at construction sites include frame scaffolds mainly used during construction of buildings, single pipe scaffolds mainly used during construction of houses, and wedge-tight scaffolds. Also called “supporting work”), a rolling tower, etc. is also an aspect of a temporary scaffold.

  Among these, the framework scaffold is a type that uses a building frame such as an H shape or a torii gate shape composed of vertical columns (also referred to as “construction material”) and horizontal rails (also referred to as “horizontal material”). In addition, the wedge-binding scaffold is a column member provided with a connecting piece such as a frame on the side surface and a short horizontal material (also called a “tie material”. In addition, the short horizontal material is sometimes referred to as “arm wood”. )), And a cloth frame with a floor (also referred to as “fabric board”) is bridged between the horizontal rails facing each other or between the horizontal members (arm wood). Used as a passageway.

  In addition, the system supporter arranges support columns in the vertical direction by connecting support members, such as frames, that are provided on the side surfaces in a vertical direction, and between the connection members of these support members, two types of horizontal materials are used. (It is also referred to as “tethering material. It may be the same length.)” Is a tightly bound structure formed by connecting in two horizontal directions, and a cloth frame with a floor is placed between facing horizontal materials (tethering material). It can be used as a work floor or a worker's aisle, etc., by appropriately spanning. Note that pipes made of steel or aluminum are often used for the column members, horizontal members, building frames, and the like.

  Here, as a connection metal fitting provided on the side surface of the column member, a plurality of frames provided on the side surface of the column member, a flange provided annularly on the side surface of the column member, or the like can be used. And the wedge metal fitting provided in the edge part of a horizontal member can be attached to connection metal fittings, such as a top and a flange, and can be fastened with a wedge.

  As described above, these temporary scaffolds are usually used as a working floor, a worker's passage, etc., with a cloth frame with a floor as a scaffolding plate.

  The cloth frame with a floor is usually 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 attached to the four corners of both ends of the long main material with rivets or the like. In order to prevent an operator from sliding on the cloth frame with a floor when walking on the cloth frame with a floor, the upper surface of the floor material portion 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.

  The floor-equipped cloth frame formed in this way is used as a scaffolding plate for a temporary scaffold by being bridged between facing horizontal rails or between horizontal members. At this time, according to the width of the work floor of the temporary scaffolding or the passage, one or two or more of the floor-attached cloth frames are arranged side by side to form a work floor or a passage.

  Below, the structure and assembly method will be described with reference to the drawings in the order of the frame scaffold, the wedge-tightened scaffold, and the system support work.

  First, FIG. 1 shows an example of forming a frame scaffold 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 24 are arranged at equal intervals at right angles to the building 14, between the adjacent torii frames 24, a streak 25 is attached to the lock fitting 28b on the opposite side of the building, and also on the building side. By attaching the striation 25 to the lock fitting 28a and allowing the first-stage torii frame 24 to stand on its own, the first-stage scaffolding is formed. Note that the connecting pin type hojo material 12 is fitted in the upper end portion of the vertical column 22 of the torii frame 24 in advance. After that, a floor-mounted cloth frame 9 serving as a second-stage scaffolding plate is bridged between the horizontal rails 23 above the first-stage adjacent torii frame 24, and then the first-stage torii frame 24 already erected. The lower portion of the vertical column 22 of the torii frame 24 prepared separately is placed and fixed to the vertical column 22 via the connecting pin type hojo material 12 fitted in the upper end of the column 22 in advance. A torii frame 24 at the stage is set up. Thereafter, in the same manner as the first stage, the streak 25 is attached to the lock fitting 28b on the side opposite to the building, and the streak 25 is also attached to the lock fitting 28a on the building side, so that the second stage torii frame 24 is attached. The second stage scaffolding is formed by allowing the to stand independently. After that, a floor-mounted cloth frame 9 serving as a third-stage scaffolding plate is bridged between the horizontal rails 23 on the upper side of the second-stage adjacent torii frame 24, and then the second-stage torii frame 24 already erected. By connecting the lower part of the vertical column 22 of the torii frame 24 prepared separately to the vertical column 22 via a connecting pin type hojo material 12 fitted in the upper end of the column 22 in advance. The frame 24 is erected. Thereafter, in the same manner as in the second stage, the streak 25 is attached to the lock fitting 28b on the opposite side of the building, and the streak 25 is also attached to the lock fitting 28a on the building side to provide the third stage torii frame 24. 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. In addition, although the procedure which makes the frame of each step self-supporting by using a strut is described here, the frame of each step may be made self-supporting by replacing a part of the strut with a handrail frame.

  Next, FIG. 2 shows an example of the structure of a wedge-tight scaffold. (a) is a front view of a wedge-binding 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 wedge-binding scaffold.

  Here, three support columns 1 of the wedge-binding scaffold are erected on the building 14 side and on the opposite side. Each strut 1 is formed by adding a strut member 3 having a plurality of tops 4 in the vertical direction via an embedded type hozo material 11 previously joined to the upper end portion thereof. A horizontal member 2 is attached via a frame 4 between the column 1 on the building side and the column 1 on the opposite side of the building, and the frame 4 is fastened with a wedge 2a. A brace member 21 is diagonally attached between the adjacent struts 1 on the building side via the top 4, and a handrail member is interposed between the adjacent struts 1 on the side opposite to the building via the top 4. 20 are attached and are fastened with wedges in the top 4 respectively. And the 1st step | paragraph scaffold is formed by spanning the cloth frame 9 with a floor between the adjacent horizontal members 2, or 1 sheet or 2 sheets or more. The brace material 21 may be attached between the columns 1 on the opposite side of the building.

  The second stage scaffold is formed in the same manner as the first stage scaffold. A separately prepared strut member 3 is added in the vertical direction via an embedded type hozo material 11 joined to the upper part of the strut member 3 of the first stage scaffold, and then the horizontal member 2, the brace member 21, and the handrail member Twenty scaffold components are attached through the top 4, and these scaffold components are fastened by the wedge 2 a in the top 4, and then one or two floor-mounted fabric frames 9 are placed between the adjacent horizontal members 2. It is formed by spanning more than one. By repeating this in sequence, a multi-stage wedge-binding scaffold is assembled.

  3 is a front view showing an example of the system support work, and FIG. 4 is a right side view of the system support work of FIG.

  In this example, the system support work 100 is installed at a height of several m to several tens of m above the ground so as to support the lower surface of the formwork 102 above the concrete structure (also referred to as slab) 101. .

  The system supporter 100 is formed by arranging a plurality of support pillars 1 in a matrix at predetermined intervals, and connecting adjacent support pillars 1 with a plurality of horizontal members 2 in two horizontal directions. Each strut 1 is composed of a plurality of strut members 3 that are connected in the vertical direction via embedded type hoses 11. The lower end of each column 1 is supported by a jack base 5. A large jack jack 6 is attached to the upper end of each support column 1, and a plurality of large pull materials 7 are placed on the large jack jack 6. Further, a plurality of joists 8 are placed on the plurality of large joists 7 and the formwork 102 is placed on the plurality of joists 8 so as to be orthogonal to the large joists 7.

  Four frames 4 are formed in a cross shape at predetermined intervals on the side surface of the column 1. The horizontal member 2 is connected to the frame 4 via a wedge portion joined to both ends of the horizontal member 2 and is fastened by a wedge 2a. Here, the horizontal member 2 is not attached to the central piece 4 of each column member 3, but the horizontal member 2 may also be attached to the central piece 4 of each column member 3.

  And the cloth frame 9 with a floor is bridged between the horizontal materials 2 which face. In the same manner, a scaffold for use as a work floor or a worker's passage can be formed where necessary by laying the cloth frame 9 with a floor on other places. Here, one scaffolding plate is formed by laying two cloth frames with a floor between the short horizontal members 2 facing each other, and used as a work floor or a passage.

  As described above, the cloth frame with a floor is formed as a scaffolding plate of a temporary scaffold by being laid over one or two or more sheets between horizontal bars facing each other or between horizontal members, and used as a work floor or a passage. .

  At this time, in the temporary scaffolding, regardless of the frame scaffolding, wedge-tightened scaffolding, system support work, etc., the baseboard is formed along the edge of one side or both sides of the scaffolding board formed by laying the cloth frame with the floor. May be installed. The skirting boards are installed by placing the skirting boards vertically on the edge of the cloth frame with the floor, or by placing the skirting boards vertically and attaching them to the vertical columns or columns. Since this skirting board is installed at the edge of the entire length of the scaffolding plate, it falls down while the worker is moving in the temporary scaffolding or the work of assembling and dismantling the temporary scaffolding, or falls from the clearance of the temporary scaffolding. It has a function of preventing it. In addition, the skirting board has a function of preventing tools, building materials, and the like from dropping from the clearance of the temporary scaffold.

  FIG. 5 shows an example when a baseboard (conventional example) is installed on a frame scaffold using a building frame. (a) is a plan view, (b) is a front view, and (c) is a cross-sectional view (right side view) taken along line AA in (a).

  Here, the single cloth frame 9 with a floor is composed of two main materials, a long main material composed of a horizontal floor material portion and a cloth material portion formed by bending the side surfaces of both edges, and both ends in the longitudinal direction of the main material. It is comprised from the grip metal 10 attached to a part, and the beam material 13 of a U-shaped cross section. The two cloth frames 9 with a floor are laid in parallel between the facing horizontal rails 23 to form a scaffolding plate for a temporary scaffold, which is used as a work floor or a passage.

  The skirting board 30 includes a long skirting board main body 31 and fixing metal fittings 32 attached to both ends of the skirting board main body. The long baseboard body 31 is formed by bending a long steel plate having a thickness of about 0.8 to 1.2 mm so that a flat surface has a width of about 10 to 15 cm. And the length of the baseboard 30 respond | corresponds to the length of the cloth board 9 with a floor spanned between the horizontal rails 23 which face, and is about 180-183 cm normally. This skirting board main body 31 is installed vertically on both edges of a scaffold board formed by arranging two pieces of the above-mentioned cloth frame 9 with a floor. And it fixes on the crosspiece 23 by the fixing metal fitting 32 attached to the both ends of the baseboard main body 31. FIG.

  Thus, since the skirting board main body 31 is installed vertically along the edge part of a scaffold board, the height after installation of the skirting board main body 31 will be about 10-15 cm. Therefore, even if the operator slides his / her foot on the scaffolding plate, the tip of the foot hits the baseboard body 31, preventing the operator from falling down. Is prevented from falling. In addition, when a tool or the like is placed on the scaffolding board, the operator may accidentally kick the toe, but this is also guarded by the skirting board body 31, so the tool or the like falls. It is prevented.

  Moreover, such a skirting board 30 can be installed not only in a frame scaffold using a building frame, but also in a wedge-tight scaffold and a system support work, and prevents tools from falling and falling, as well as tools and building materials. Etc. can be prevented from falling.

  However, in the skirting board 30 shown in FIG. 5, not only in a frame scaffold using a building frame, but also in a wedge-tight scaffold or a system support, it is installed at the edge of the vertical column 22 or the column member 3 and the scaffold plate. A gap 16 is formed between the skirting board body 31 and the skirting board body 31.

  The reason why the gap 16 is generated is as follows. In the temporary scaffolding, one or a plurality of floor-attached cloth frames 9 are bridged between the facing crosspieces 23 or the horizontal members 2 to form a scaffolding plate. The width of the scaffolding plate is determined by the width and number of cloth frames 9 with floors, and the width and number of cloth frames 9 with floors that can be bridged are within the range of the length of the horizontal rail 23 or the horizontal member 2. Limited to

  And, the cloth frame 9 with a floor is usually used in two types of 240 mm width and 500 mm width, and one or a plurality of them is combined and bridged between the crosspieces 23 or the horizontal member 2 facing each other. As a result, scaffolding plates having various widths are formed. For example, a scaffolding plate having various widths is formed by a combination of one 500 mm width, one 500 mm width and one 240 mm width, and two 500 mm widths.

  On the other hand, the length of the horizontal beam 23 or the horizontal member 2 has an inch size and a meter size, but when the inch size is taken as an example, usually three types of 610 mm, 914 mm and 1219 mm are prepared. Yes. For this reason, when the cloth frame 9 with a floor is installed as a scaffolding plate of a frame scaffold, for example, to form a 610 mm width, a 500 mm width is used to bridge, and to form a 914 mm width, a 500 mm width. One sheet and one sheet having a width of 240 mm are bridged side by side, and two sheets of 500 mm width are bridged to form a 1219 mm width.

  Thus, the width of the scaffolding plate when one or more floored fabric frames 9 are bridged to form the scaffolding plate, and the horizontal rail 23 or horizontal material over which the floored fabric frame 9 is bridged. Due to the gap with the length of 2, a gap 16 is generated between the vertical column 22 or the column member 3 and the skirting board main body 31 installed at the edge of the scaffolding board.

  Therefore, an operator steps on a foot or drops a tool into the gap 16 formed between the vertical column 22 or the column member 3 and the baseboard body 31 installed at the edge of the scaffolding board. There is a risk. Further, since the width of the scaffold plate that can be installed is reduced by the amount of the gap 16, the entire space formed inside the vertical column 22 or the column member 3 cannot be used as a scaffold.

  For this reason, an L-shaped baseboard 34 is proposed in which a long block board (also referred to as a “horizontal board”) 36 is attached to a long baseboard body 31 at a right angle.

  FIG. 6 shows an example when an L-shaped baseboard (conventional example) is installed on a frame scaffold using a building frame. (a) is a plan view, (b) is a front view, and (c) is a cross-sectional view (right side view) taken along line BB of (a).

  Here, the L-shaped baseboard 34 is not installed at the edge of the scaffolding board but at the edge of the scaffolding board, and is installed close to the vertical column 22 and fixed to both ends of the baseboard body 31. It is fixed on the end of the horizontal rail 23 by the metal fitting 32. And since the edge part of the elongate closing board 36 is mounted on the edge part of the cloth frame 9 with a floor, a clearance gap does not arise between the baseboard main body 31 and the cloth frame 9 with a floor. Here, since the space formed inside the vertical column 22 can be widely used as a scaffold, the width of the scaffold plate is not reduced.

  However, the L-shaped baseboard 34 has a problem that the baseboard body 31 and the closing plate 36 form a fixed angle of 90 ° C., and therefore the L-type baseboard 34 is bulky during transportation and storage.

  In order to solve this problem, for example, Patent Document 1 discloses a hinge structure that allows a closing plate to be folded through a hinge or the like when a long closing plate is attached in parallel to a long baseboard body. An L-shaped skirting board has been proposed. According to this foldable L-shaped skirting board, when the closing plate is unfolded, its edge is placed on the edge of the cloth frame 9 with the floor, so that the base board body 31 and the cloth frame 9 with the floor 9 There is no gap between them. Moreover, since the space formed inside the vertical column or the support material can be widely used as a scaffold, the width of the scaffold plate is not reduced. Furthermore, since the closing plate can be folded, it is not bulky when the L-shaped skirting board 34 is transported or stored.

  FIG. 7 shows an example of a foldable L-shaped skirting board (conventional example). (a) is a front view, (b) is a left side view when the closing plate is unfolded, and (c) is a left side view when the closing plate is folded.

  The foldable L-shaped baseboard 34 includes a long baseboard body 31, fixing brackets 32 attached to both ends of the baseboard body, and a long blockade attached to the long baseboard body. It consists of a plate 36. The long closing plate 36 is attached via a hinge 37 so that it can be opened and closed at an angle of 95 °. The long baseboard body 31 is formed by bending a long steel sheet having a thickness of about 0.8 to 1.2 mm so that the flat surface has a width of about 10 to 15 cm. And the length of the baseboard main body 31 respond | corresponds to the length of the cloth board 9 with a floor | bed used for a temporary scaffold, and is about 180-183 cm normally. This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22 or the column member 3 and fixed to the horizontal beam 23 or the fixing bar 32 attached to both ends of the skirting board main body 31. It is fixed on the end of the horizontal member 2.

  The foldable L-shaped skirting board 34 has a baseboard body by opening a long closing plate 36 and placing its edge on the edge of the cloth frame 9 with a floor when installed on a scaffold. By closing the gap between 31 and the cloth frame 9 with a floor, it is possible to prevent falling of tools, building materials, etc., as well as preventing the operator from falling and falling.

  The foldable L-shaped skirting board 34 can be folded to the baseboard main body 31 side so as not to be bulky during transportation or storage, and the occupied volume can be reduced accordingly. .

  FIG. 8 shows an example when this foldable L-shaped baseboard (conventional example) is incorporated in a frame scaffold using a building frame. (a) is a top view, (b) is a front view, and (c) is a sectional view (right side view) taken along the line CC of (a).

  Here, one piece of the cloth frame 9 with a floor is composed of two main materials, a long main material composed of a horizontal floor material portion and a cloth material portion formed by bending the side surfaces of both edges, and both ends in the longitudinal direction of the main material. The two parts of the cloth frame 9 with a floor are bridged in parallel between the crosspieces 23 facing each other, and the gripping metal fitting 10 attached to the section and the beam member 13 having a U-shaped cross section. The point used as a work floor or a passage for a temporary scaffold is the same as FIG.

  The structure of the foldable L-shaped baseboard 34 is as shown in FIG. 7, and includes a long baseboard body 31, fixing brackets 32 attached to both ends of the baseboard body 31, and a long baseboard body 31. It consists of a long closing plate 36 attached to the skirting board body 31. The long closing plate 36 is attached via a hinge 37 so that it can be opened and closed at an angle of 95 °.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22, and is fixed to the horizontal beam 23 or the horizontal member 2 by fixing brackets 32 attached to both ends of the skirting board main body 31. Fixed on the end. Then, by opening the long closing plate 36 and placing the edge portion on the edge portion of the cloth frame 9 with the floor, the gap 16 generated between the baseboard body 31 and the cloth frame 9 with the floor is closed. Is.

  Therefore, when the foldable L-shaped skirting board 34 is installed, there is no gap along the skirting board main body 31, and the space formed inside the vertical column 22 can be widely used as a work floor or a passage. In addition to preventing the operator from falling or falling, it is possible to prevent tools and building materials from falling. Moreover, it can be installed not only in a framework scaffold using a building frame but also in a wedge-tight scaffold or a system support.

JP 2002-89032 A

  When this foldable L-shaped baseboard is installed on a scaffold, the base end portion of the closing plate serves as a support point, and the edge portion of the closing plate is placed on the edge portion of the cloth frame with a floor. In other words, the edge of the closing plate is simply placed on the floored cloth frame by its own weight, so that it easily floats when the wind blows from below, There is a risk that a gap will be formed between the two. Therefore, there is a possibility that an operator may pierce his / her foot into this gap or accidentally kick a tool or the like placed on the scaffolding board with a toe.

  In addition, this foldable L-shaped skirting board can fold a long closing board to the skirting board body side so that it does not become bulky during transportation and storage, and the occupying volume can be reduced accordingly. However, depending on the orientation of the closing plate, the closing plate may be opened in handling work during transportation or storage after folding the folding L-shaped closing plate to the side of the base plate body. As a result, handling work during transportation and storage becomes inefficient.

  The first object of the present invention is to prevent the closing plate from floating even when wind blows from below when it is installed on a scaffold, and thus to prevent a gap from being generated between the closing plate and the cloth frame with a floor. A foldable L-shaped baseboard closing plate and a temporary scaffold incorporating the L-type baseboard are provided.

  The second object of the present invention is to prevent the opening of the closing plate regardless of the orientation of the closing plate after the closing of the closing plate in handling operations during transportation or storage. It is intended to provide a foldable L-shaped skirting board that improves the efficiency of handling work and a temporary scaffold incorporating the L-shaped skirting board.

  The present inventors have made various studies in order to solve the above problems. As a result, the following findings (a) to (g) were obtained.

  (a) First, in order to make the closing board an L-shaped skirting board that can be folded to the side of the skirting board body, the closing board is hinged to the skirting board body with a hinge or the like, and the closing board is attached to the skirting board body. It should be rotatable. The rotation angle of the closing plate from the baseboard body is preferably 90 to 100 °, more preferably about 95 °. Further, in order to reduce a gap generated between the edge of the closing board and the scaffold when the folding board of the L-shaped baseboard that is foldable is deployed and installed on the scaffold, it is preferable that the edge of the closing board is bent downward. . The number of hinge structures such as hinges is not particularly limited. Although it may be provided at only one location, it is preferably provided at a plurality of locations.

  (b) Regarding the foldable L-shaped skirting board, in order to prevent the closing board from being lifted even if the wind blows from below after the opening of the closing board, the expanded state may be maintained. Further, after the closing plate is folded, in order to prevent the closing plate from being opened regardless of the direction of the closing plate, the folded state may be maintained.

  (c) In order to maintain the state in which the folding board of the foldable L-shaped skirting board is unfolded and placed on the scaffold, that is, in the unfolded state of the closing board, the closing board is rotated to the side of the skirting board body. What is necessary is just to attach the member which disturbs doing to the base end part of a closing board.

  Specifically, a lock pin that can be operated up and down is vertically attached to the skirting board via a lock pin mounting bracket, and an angle is set at the base end position of the closing plate corresponding to the position where the lock pin is attached. (Angle steel) is installed, and one side of the angle is inserted between the skirting board body and the lock pin, so that one side of the angle is at the lower end of the lock pin even if the closing plate rotates toward the skirting board body side. Can be prevented from rotating to the side of the baseboard body. In addition, it is preferable to keep the lock pin operable up and down at the lowest end of the operation range by attaching a spring and applying a downward biasing force. This is because it is possible to prevent the unfolded closing plate from rotating toward the skirting board main body unless the lock pin is manually pulled up.

  As a spring attached to the lock pin, any spring that can apply a downward biasing force to the lock pin may be used. Although not particularly limited, for example, a coil spring is preferably used.

  In addition, as a mechanism which can prevent rotation of lock pin itself, when a closing board is lifted and folded to the baseboard main body side, it is preferable to provide a small pin on the side of a lock pin, for example. If this small pin is inserted into the long hole provided in the vertical direction on the side of the lock pin mounting bracket, it can move in the long hole, so it moves in the vertical direction between the upper and lower ends of the long hole. Yes, but can't move horizontally. Therefore, even if the lock pin tries to rotate in the horizontal direction, the small pin hits the edge of the long hole, and the lock pin can be prevented from rotating.

  Alternatively, instead of attaching an angle to the position of the base end portion of the closing plate corresponding to the position where the lock pin is attached, part or all of the base end portion of the closing plate corresponding to that position is bent upward, and By inserting the bent part between the skirting board main body and the lock pin, even if the closing plate tries to rotate to the side of the skirting board main body, the bent part hits the lower end of the lock pin from the side. Rotating to the side of the wood body can be disturbed. In this case, since the closing plate is often a thin plate, it is desirable to reinforce at least the bent portion of the closing plate at a position corresponding to the lower end of the lock pin with a closing plate reinforcing plate or the like.

  In addition, the lock pin, the angle or the bent portion can be attached to one base plate or a single block board, respectively, at one place or a plurality of places. It is preferable that the position of the lock pin and the position of the angle or the bent portion are aligned so that one side of the corresponding angle or the closing plate bent portion hits the lower end portion of the lock pin from the side when rotating to the other side.

  Further, it is desirable that the position of the lock pin and the position of the angle or the closing plate bending portion are aligned with the hinge structure such as a hinge. Because the closing plate is a thin plate, there is a possibility of local deformation due to repeated use, but local deformation is suppressed at the place where the closing plate is connected to the baseboard body by a hinge structure such as a hinge. This is because the relationship between the position of the lock pin and the position of the angle or the bent portion is easily maintained.

  (d) Next, when the folding board of the foldable L-shaped baseboard placed on the scaffold is folded to the side of the baseboard body, before the lifting board is lifted, the closing board is attached to the baseboard body. It is only necessary to prevent a member that obstructs rotation to the side from functioning. Taking the combination of the lock pin and angle described above as an example, when the closing plate rotates to the skirting board main body, one side of the angle does not hit the lower end of the lock pin from the side. It can be folded to the side of the skirting board body by lifting the lock pin by hand against the force and lifting it upward.

  (e) After the foldable L-shaped skirting board placed on the scaffold is rotated and folded to the side of the skirting board, the closing board folds regardless of the direction of the closing board. In order to maintain the state, it is only necessary to provide a member that prevents the folded closing plate from separating from the skirting board main body.

  Specifically, a hook is provided on the upper end portion of the lock pin described above, and the hook is hooked on the edge of the folded closing plate, thereby preventing the folded closing plate from being separated from the skirting board main body. . Since the lock pin can be operated up and down, if a downward urging force is applied by attaching a spring to the lock pin, the hook provided on the upper end of the lock pin is hooked on the edge of the folded closing plate Therefore, the closing plate can maintain its folded state. In addition, if the lock pin that can be moved up and down is attached with a spring or the like to give a downward biasing force, the lock pin that can be moved up and down is always in the lowest position regardless of the direction of the closing plate. . Therefore, as long as the lock pin is not manually pulled up, it can be prevented that the closing plate in the folded state is separated from the baseboard body.

  As a hook provided on the upper end of the lock pin, a hook-like member different from the lock pin may be attached to the upper end of the lock pin, but the upper end of the lock pin may be bent downward and formed into a hook shape. Good.

  In addition, when the position of the hook of the lock pin is lower than the position of the edge of the folded closing plate, the hook provided on the lock pin cannot be hooked on the edge of the folded closing plate. However, even in this case, a through hole is opened at the position of the closing plate corresponding to the position of the lock pin ridge, and after the lock pin ridge is stored in this hole, the lock pin ridge is hooked on the edge of the hole. By this, it can be prevented that the folded closing board leaves | separates from a baseboard main body.

  Here, in order to hook the hook of the lock pin to the edge of the folded closing plate or the edge of the through-hole, the edge of the closing plate is moved to the edge of the baseboard body with the lock pin pulled up by hand. After folding to the side, the lock pin can be restored. As described above, when the lock pin that can be operated up and down is attached with a spring to apply a downward biasing force, the closing state of the closing plate can be maintained in any direction.

  Alternatively, if the bottom surface of the lock pin ridge is cut diagonally and adjusted so that the edge of the folded closing plate touches the diagonal bottom surface of the lock pin ridge, the lock pin is pulled up by hand. It is only necessary to keep the edge of the closing plate folded to the side of the baseboard body.

If the lock pin is pulled upward by hand only during this initial period, the angle or the bent part of the base end of the closing plate will not hit the lower end of the lock pin. Even if it returns to the downward direction, a closing board can be rotated to the baseboard body side. Immediately before the closing plate is folded into the baseboard body, the edge of the closing plate to be folded or the edge of the through hole of the closing plate hits the bottom surface of the lock pin. Since the bottom surface is cut diagonally, the lock pin moves upward against the downward biasing force of the spring without bothering pulling the lock pin upward by hand, and the edge of the closing plate or the closing plate The edge of the through hole can be received on the side of the baseboard body. After that, since the lock pin moves downward by the downward biasing force of the spring, the closing plate is caught by the hook of the locking pin, and the closing plate can maintain its folded state. It is preferable to provide a mechanism that prevents the lock pin itself from rotating.

  (f) Further, when the folding board folded on the side of the skirting board main body is developed and the edge of the closing board is to be placed on the scaffold, the folding board is separated from the skirting board main body. What is necessary is just to make it the member which disturbs not function.

  To that end, it is only necessary to remove the state that the hook provided at the upper end of the lock pin is caught on the edge of the folded closing plate or the edge of the through hole of the closing plate. Just pull it up by hand. And the edge part of a closing board can be mounted on a scaffold by rotating and expanding the closing board folded by the side of the baseboard main body outside.

  (g) The foldable L-shaped baseboard capable of maintaining both the unfolded state and the folded state may be fixed on the end of the horizontal rail or the horizontal member. You may fix to a support | pillar member, a handrail member, or a handrail frame.

  The present invention has been completed based on the above findings, and the gist of the invention resides in the following foldable L-shaped baseboards (1) to (8) and the temporary scaffolding (9). Hereinafter, the inventions according to (1) to (9) may be collectively referred to as the present invention.

  (1) A foldable L-shaped skirting board composed of a skirting board body and a closing plate attached to the skirting board body by a hinge structure, and a vertically movable lock pin having a hook at the upper end is Attached vertically to the skirting board with a biasing force applied, an angle is attached to the position of the base end of the closing plate corresponding to the mounting position of this lock pin, and the angle is in the expanded state of the closing plate It is possible to maintain both the unfolded state and the folded state by making it possible to hit the lower end of the lock pin and by allowing the hook of the lock pin to be caught on the closing plate in the folded state of the closing plate A foldable L-shaped baseboard, characterized in that

  (2) The foldable L-shaped baseboard according to (1) above, wherein the installation position of the hinge structure corresponds to the position of the lock pin and the position of the angle.

  (3) A foldable L-shaped skirting board comprising a skirting board body and a closing board attached to the skirting board body by a hinge structure, and a vertically movable lock pin having a ridge at the upper end, The urging force is applied to the skirting board vertically, and the position of the base end of the closing plate corresponding to the mounting position of the lock pin is bent to form the closing portion of the closing plate. By allowing the folded portion of the closing plate to hit the lower end of the lock pin in the unfolded state of the plate, and by allowing the hook of the lock pin to be caught on the closing plate in the folded state of the closing plate, A foldable L-shaped skirting board characterized in that it can maintain both an unfolded state and a folded state.

  (4) The foldable L-shaped baseboard according to (3) above, wherein the installation position of the hinge structure corresponds to the position of the lock pin and the position of the folding portion of the closing plate.

  (5) The folding plate according to any one of the above (1) to (4), characterized in that it has a through hole at the position of the closing plate corresponding to the position of the lock pin when the closing plate is folded. L-shaped skirting board.

  (6) The foldable L-shaped baseboard according to any one of (1) to (5) above, wherein the bottom surface of the lock pin ridge has an oblique shape.

  (7) The fold provided on the upper end portion of the lock pin is formed by folding the upper end portion of the lock pin downward to form a ridge shape, and can be folded in any of the above (1) to (6) L-shaped skirting board.

  (8) The foldable L-shaped baseboard according to any one of (1) to (7) above, wherein the rotatable angle between the baseboard body and the closing plate is 90 to 100 °.

  (9) A temporary scaffold characterized by incorporating the foldable L-shaped baseboard of any one of (1) to (8) above.

  According to the foldable L-shaped skirting board according to the present invention, the unfolded state of the closing plate can be maintained, so that it is possible to prevent the closing plate from floating even if the wind blows from below after the closing plate is expanded. . In addition, after folding the cover plate, the folded state can be maintained regardless of the direction of the cover plate, so that it is not bulky during transportation and storage, and the handling work during transportation and storage can be made efficient. .

An example of forming a frame scaffold using a torii-shaped building frame (hereinafter referred to as “torii frame”) is shown. (a) is a front view, (b) is a right side view. An example of the structure of a wedge-tight scaffold is shown. (a) is a front view of a wedge-binding 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 wedge-binding scaffold. It is a front view which shows an example of a system support construction. It is a right view of the system support construction of FIG. An example when a skirting board (conventional example) is installed in a frame scaffold using a building frame is shown. (a) is a plan view, (b) is a front view, and (c) is a cross-sectional view (right side view) taken along line AA in (a). An example is shown when an L-shaped skirting board (conventional example) is installed on a frame scaffold using a building frame. (a) is a plan view, (b) is a front view, and (c) is a cross-sectional view (right side view) taken along line BB of (a). An example of a foldable L-shaped baseboard (conventional example) is shown. (a) is a front view, (b) is a left side view when the closing plate is unfolded, and (c) is a left side view when the closing plate is folded. An example when this foldable L-shaped baseboard (conventional example) is incorporated into a frame scaffold using a building frame is shown. (a) is a top view, (b) is a front view, and (c) is a sectional view (right side view) taken along the line CC of (a). It is an example of the L-shaped skirting board which can be folded based on this invention. (a) is a front view of the whole, (b) is an enlarged view (back view and right side view) of the lock pin indicated by a circle in (a), and (c) pulls the lock pin upward. It is an enlarged view (back view and right side view) when It is explanatory drawing of the procedure which opens and closes the foldable L-shaped baseboard closing board shown in FIG. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the cross-sectional view (left side view) taken along the line DD in (a). And (c) shows the procedure which expand | deploys from the state which closed the closing board in arrow DD sectional drawing (left view) of (a). An example when the foldable L-shaped baseboard shown in FIG. 9 is incorporated into a frame scaffold using a building frame is shown. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side. It is another example of the L-shaped baseboard which can be folded based on this invention. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the DD cross-sectional view (left side view) of (a), and (c) shows the procedure of (a). It is arrow DD sectional drawing (left side view) which shows the procedure which expand | deploys from the state which closed the closing board in arrow DD sectional drawing (left side view). An example when the foldable L-shaped baseboard shown in FIG. 12 is incorporated in a frame scaffold using a building frame is shown. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side. It is another example of the L-shaped baseboard which can be folded based on this invention. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the DD cross-sectional view (left side view) of (a), and (c) shows the procedure of (a). The procedure which expand | deploys from the state which folded the closing board in arrow DD sectional drawing (left view) is shown. An example when the foldable L-shaped baseboard shown in FIG. 14 is incorporated in a frame scaffold using a building frame is shown. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side. It is another example of the L-shaped baseboard which can be folded based on this invention. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the DD cross-sectional view (left side view) of (a), and (c) shows the procedure of (a). The procedure which expand | deploys from the state which folded the closing board in arrow DD sectional drawing (left view) is shown. An example when the foldable L-shaped baseboard shown in FIG. 16 is incorporated in a frame scaffold using a building frame is shown. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side.

  A foldable L-shaped skirting board and a temporary scaffold incorporating the foldable L-shaped skirting board according to the present invention will be described below with reference to the drawings.

  FIG. 9 is an example of a foldable L-shaped baseboard according to the present invention. (a) is a front view of the whole, (b) is an enlarged view (back view and right side view) of the lock pin indicated by a circle in (a), and (c) pulls the lock pin upward. It is an enlarged view (back view and right side view) when

  FIG. 10 is an explanatory diagram of a procedure for opening and closing the foldable L-shaped baseboard closing plate shown in FIG. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the cross-sectional view (left side view) taken along the line DD in (a). And (c) shows the procedure which expand | deploys from the state which closed the closing board in arrow DD sectional drawing (left view) of (a).

  As shown in FIG. 9 (a), the foldable L-shaped baseboard 34 includes a long baseboard body 31, fixing brackets 32 attached to both ends of the baseboard body, and a long baseboard. A long closing plate 36 attached to the main body is provided.

  One or more hinges 37 are provided as a hinge structure between the long closing plate 36 and the long baseboard body 31, and are attached to the long baseboard body 31 so as to be openable and closable. Therefore, it can expand | deploy by rotating the closing board 36 outside, and can also be folded by rotating the closing board 36 to the baseboard main body 31 side. Here, the rotatable angle between the skirting board main body 31 and the closing plate 36 is 95 °. The long baseboard body 31 is formed by bending a long steel sheet having a thickness of about 0.8 to 1.2 mm so that the flat surface has a width of about 10 to 15 cm. And the length of the baseboard main body 31 respond | corresponds to the length of the cloth board 9 with a floor | bed used for a temporary scaffold, and is about 180-183 cm normally.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22 or the column member 3 and fixed to the horizontal beam 23 or the fixing bar 32 attached to both ends of the skirting board main body 31. It can be fixed on the end of the horizontal member 2. Instead of being fixed on the horizontal rail 23 or the end of the horizontal member 2, it may be fixed to the vertical column 22, the column member 3, the handrail member 20, or the handrail frame.

  As shown in FIG. 9 (b), the foldable L-shaped baseboard 34 has a lock pin 39 that can be operated up and down with its upper end portion closed at the center position of the baseboard body and folded in a bowl shape on the side of the baseboard. One or a plurality of members are vertically attached to the skirting board body 31 via the lock pin attachment fitting 39d in a state where a downward urging force is applied by the coil spring 43, and the attachment position of the lock pin 39 is An angle 40 is attached to the position of the base end portion of the closing plate 36 corresponding to. Here, the mounting position of the lock pin 39 and the angle 40 corresponds to the mounting position of the hinge 37.

  The lock pin 39 includes a small pin 44 on the side surface of the lock pin 39 as a mechanism capable of preventing horizontal rotation. The small pin 44 is fitted in a long hole 45 provided in the vertical direction on the side surface of the lock pin mounting bracket 39 d and can move in the long hole 45. The small pin 44 can move in the vertical direction between the upper end and the lower end of the long hole, but cannot move in the horizontal direction. Therefore, even if the lock pin 39 tries to rotate in the horizontal direction, the small pin 44 comes into contact with the edge of the long hole 45, and therefore the lock pin 39 can be prevented from rotating.

  The coil spring 43 can be attached as follows, for example. The lock pin 39 is passed from above through a hole provided at the upper end of the lock pin mounting bracket 39 d and then passed through the center of the coil spring 43. Finally, the small pin 44 is fitted into the long hole 45 provided in the lock pin 39 and fixed so that the coil spring 43 is sandwiched between the upper end of the lock pin mounting bracket 39d and the small pin 44. At this time, the lower end of the lock pin 39 is passed through a hole provided at the lower end of the lock pin mounting bracket 39d.

  Thus, the coil spring 43 can apply a downward biasing force to the lock pin 39 via the small pin 44 and the lock pin mounting bracket 39d. Further, as shown in FIG. 9C, when the lock pin 39 is pulled upward, the small pin 44 moves upward in the long hole 45 on the side surface of the lock pin mounting bracket 39d while pushing up the coil spring 43.

  10 (b), the foldable L-shaped baseboard 34 is attached to the position of the base end portion of the closing plate 36 corresponding to the mounting position of the lock pin 39. As shown in FIG. By the action of 40, the state where the closing plate 36 is developed can be maintained. This is because a downward biasing force is applied to the lock pin 39 by the coil spring 43, so that the lock pin lower end portion 39a remains at the lowermost end of its operating range, and the closing plate 36 is attached to the base plate body. This is because one side of the angle 40 hits the lock pin lower end portion 39a from the side even if it tries to rotate to the side, and this obstructs the rotation of the closing plate to the side of the skirting board main body.

  Further, as seen in the leftmost view of FIG. 10 (c), the closing plate folded by the hook 39b provided at the upper end portion of the lock pin 39 which is vertically attached to the baseboard body 31 and can be operated vertically. Since the edge of 36 is hooked, the closed state of the closing plate 36 can be maintained. In addition, since a downward urging force is applied to the lock pin 39 by the coil spring 43, the lock pin lower end portion 39a remains at the lowermost end of the operating range, and the closing plate 36 faces in any direction. The closing plate does not come off from the flange 39b of the lock pin 39. Therefore, the foldable L-shaped skirting board 34 can maintain the folded state regardless of the direction of the closing plate 36 during transportation or storage.

  Next, in order to fold the closing plate 36 to the side of the skirting board body 31, as shown in FIG. 10 (b), the lock pin 39 is held by hand against the downward biasing force of the coil spring 43. If the closing plate 36 is lifted up after being lifted upward, it can be folded to the side of the skirting board main body 31. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is positioned at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is folded. That is, since the edge of the closing plate 36 folded by the flange 39b of the lock pin 39 is hooked, the folded state of the closing plate 36 can be maintained.

  Further, in order to deploy the closing plate, as shown in FIG. 10 (c), the lock pin 39 is lifted up by hand against the downward biasing force of the coil spring 43, and the lock pin 39 is After removing the state where the hook 39b provided at the upper end is caught on the edge of the folded closing plate 36, the closing plate 36 is rotated outward. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is located at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is in a deployed state. That is, even if the closing plate 36 is about to rotate toward the baseboard main body, one side of the angle 40 hits the lock pin lower end portion 39a from the side, so that the closing plate 36 can be maintained in an unfolded state.

  Next, FIG. 11 shows an example when the foldable L-shaped baseboard shown in FIG. 9 is incorporated into a frame scaffold using a building frame. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side.

  Here, one piece of the cloth frame 9 with a floor is composed of two main materials, a long main material composed of a horizontal floor material portion and a cloth material portion formed by bending the side surfaces of both edges, and both ends in the longitudinal direction of the main material. It is composed of a gripping metal fitting 10 attached to a section and a beam member 13 having a U-shaped cross section. It is bridged between facing horizontal rails 23 and used as a work floor or a passage for a temporary scaffold.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22, and fixed metal fittings 32 attached to both ends of the skirting board main body 31 so as to Fixed to. Then, by opening the long closing plate 36 and placing the edge portion on the edge portion of the cloth frame 9 with the floor, the gap 16 generated between the baseboard body 31 and the cloth frame 9 with the floor is closed. Is. Instead of fixing on the end portion of the horizontal rail 23, it may be fixed to the vertical column 22, the handrail member 20, or the handrail frame.

  As described above, when the foldable L-shaped baseboard 34 is installed on the scaffold, the long closing plate 36 can be unfolded and its edge can be placed on the edge of the cloth frame 9 with a floor. In addition, since the unfolded state of the closing plate can be maintained, the gap between the skirting board main body 31 and the cloth frame 9 with a floor can be reliably closed. Therefore, it is possible to prevent the fall of tools, building materials, and the like as well as preventing the operator from falling and falling. Further, the space formed inside the vertical column 22 can be widely used as a work floor or a passage. Note that the foldable L-shaped baseboard 34 is not only a frame scaffold using a building frame but also a wedge-tight scaffold or It can also be installed in system support work.

  Further, the foldable L-shaped baseboard 34 is not only capable of folding the closing plate 36 toward the baseboard body 31 so as not to be bulky when removed from the scaffold and transported or stored. The state can be maintained regardless of the orientation of the closing plate. Therefore, in the handling work during transportation or storage, when the cover plate is folded, the occupied volume can be reduced and the cover plate can be opened regardless of the direction of the cover plate. Since it can prevent, handling work at the time of transportation and storage can be made efficient.

  FIG. 12 shows another example of a foldable L-shaped baseboard according to the present invention. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the DD cross-sectional view (left side view) of (a), and (c) shows the procedure of (a). The procedure which expand | deploys from the state which folded the closing board in arrow DD sectional drawing (left view) is shown.

  As shown in FIG. 12 (a), the foldable L-shaped baseboard 34 includes a long baseboard body 31, fixing brackets 32 attached to both ends of the baseboard body, and a long baseboard. A long closing plate 36 attached to the main body is provided.

  One or more hinges 37 are provided as a hinge structure between the long closing plate 36 and the long baseboard body 31, and are attached to the long baseboard body 31 so as to be openable and closable. Therefore, it can expand | deploy by rotating the closing board 36 outside, and can also be folded by rotating the closing board 36 to the baseboard main body 31 side. Here, the rotatable angle between the skirting board main body 31 and the closing plate 36 is 95 °. The long baseboard body 31 is formed by bending a long steel sheet having a thickness of about 0.8 to 1.2 mm so that the flat surface has a width of about 10 to 15 cm. And the length of the baseboard main body 31 respond | corresponds to the length of the cloth board 9 with a floor | bed used for a temporary scaffold, and is about 180-183 cm normally.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22 or the column member 3 and fixed to the horizontal beam 23 or the fixing bar 32 attached to both ends of the skirting board main body 31. It can be fixed on the end of the horizontal member 2. Instead of being fixed on the horizontal rail 23 or the end of the horizontal member 2, it may be fixed to the vertical column 22, the column member 3, the handrail member 20, or the handrail frame.

  The foldable L-shaped skirting board 34 includes one or more lock pins 39 that can be operated up and down. Is attached vertically to the skirting board body 31 via the lock pin mounting bracket 39d in a state where a downward urging force is applied by the base plate, and the base end portion of the closing plate corresponding to the mounting position of the lock pin 39 Is folded upward to form a closing plate bending portion 36c, and is further reinforced by attaching a closing plate reinforcing plate 36d. Here, the mounting position of the lock pin 39 and the closing plate reinforcing plate 36 d corresponds to the mounting position of the hinge 37.

  The lock pin 39 also includes a small pin 44 on the side surface of the lock pin 39, and can prevent horizontal rotation as in the first embodiment. The method for attaching the coil spring 43 is the same as that in the first embodiment. Therefore, the coil spring 43 can apply a downward urging force to the lock pin 39 via the small pin 44 and the lock pin mounting bracket 39d. When the lock pin 39 is pulled upward, the small pin 44 moves upward in the long hole 45 on the side surface of the lock pin mounting bracket 39d while pushing up the coil spring 43.

  This foldable L-shaped baseboard 34 can maintain the state in which the closing plate 36 is unfolded by the action of the lock pin 39 and the closing plate reinforcing plate 36d, as seen in the leftmost view of FIG. 12 (b). . This is because a downward biasing force is applied to the lock pin 39 by the coil spring 43, so that the lock pin lower end portion 39a remains at the lowermost end of its operating range, and the closing plate 36 is attached to the base plate body. This is because the closing plate reinforcing plate 36d abuts against the lock pin lower end portion 39a from the side even if it tries to rotate to the side, and this obstructs the closing plate from rotating to the side of the skirting board main body.

  Further, as shown in the leftmost drawing of FIG. 12 (c), the closing plate folded by the hook 39b provided at the upper end portion of the lock pin 39 which is vertically mounted on the baseboard body 31 and can be operated vertically. Since the edge of 36 is hooked, the closed state of the closing plate 36 can be maintained. In addition, since a downward urging force is applied to the lock pin 39 by the coil spring 43, the lock pin lower end portion 39a remains at the lowermost end of the operating range, and the closing plate 36 faces in any direction. The closing plate does not come off from the flange 39b of the lock pin 39. Therefore, the foldable L-shaped skirting board 34 can maintain the folded state regardless of the direction of the closing plate 36 during transportation or storage.

  Next, in order to fold the closing plate 36 to the side of the skirting board main body 31, as shown in FIG. 12 (b), the lock pin 39 is held by hand against the downward biasing force of the coil spring 43. If the closing plate 36 is lifted up after being lifted upward, it can be folded to the side of the skirting board main body 31. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is positioned at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is folded. That is, since the edge of the closing plate 36 folded by the flange 39b of the lock pin 39 is hooked, the folded state of the closing plate 36 can be maintained.

  Further, in order to deploy the closing plate, as shown in FIG. 12 (c), the lock pin 39 is lifted up by hand against the downward biasing force of the coil spring 43, and the lock pin 39 is After removing the state where the hook 39b provided at the upper end is caught on the edge of the folded closing plate 36, the closing plate 36 is rotated outward. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is located at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is in a deployed state. That is, even when the closing plate 36 is about to rotate toward the baseboard main body, the closing plate reinforcing plate 36d hits the lock pin lower end portion 39a from the side, so that the closing plate 36 can be maintained in the deployed state.

  Next, FIG. 13 shows an example when the foldable L-shaped baseboard shown in FIG. 12 is incorporated into a frame scaffold using a building frame. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side.

  Here, one piece of the cloth frame 9 with a floor is composed of two main materials, a long main material composed of a horizontal floor material portion and a cloth material portion formed by bending the side surfaces of both edges, and both ends in the longitudinal direction of the main material. It is composed of a gripping metal fitting 10 attached to a section and a beam member 13 having a U-shaped cross section. It is bridged between facing horizontal rails 23 and used as a work floor or a passage for a temporary scaffold.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22, and fixed metal fittings 32 attached to both ends of the skirting board main body 31 so as to Fixed to. Then, by opening the long closing plate 36 and placing the edge portion on the edge portion of the cloth frame 9 with the floor, the gap 16 generated between the baseboard body 31 and the cloth frame 9 with the floor is closed. Is. Instead of fixing on the end portion of the horizontal rail 23, it may be fixed to the vertical column 22, the handrail member 20, or the handrail frame.

  As described above, when the foldable L-shaped baseboard 34 is installed on the scaffold, the long closing plate 36 can be unfolded and its edge can be placed on the edge of the cloth frame 9 with a floor. In addition, since the unfolded state of the closing plate can be maintained, the gap between the skirting board main body 31 and the cloth frame 9 with a floor can be reliably closed. Therefore, it is possible to prevent the fall of tools, building materials, and the like as well as preventing the operator from falling and falling. Further, the space formed inside the vertical column 22 can be widely used as a work floor or a passage. Note that the foldable L-shaped baseboard 34 is not only a frame scaffold using a building frame but also a wedge-tight scaffold or It can also be installed in system support work.

  Further, the foldable L-shaped baseboard 34 is not only capable of folding the closing plate 36 toward the baseboard body 31 so as not to be bulky when removed from the scaffold and transported or stored. The state can be maintained regardless of the orientation of the closing plate. Therefore, in the handling work during transportation or storage, when the cover plate is folded, the occupied volume can be reduced and the cover plate can be opened regardless of the direction of the cover plate. Since it can prevent, handling work at the time of transportation and storage can be made efficient.

  FIG. 14 is another example of a foldable L-shaped baseboard according to the present invention. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the DD cross-sectional view (left side view) of (a), and (c) shows the procedure of (a). The procedure which expand | deploys from the state which folded the closing board in arrow DD sectional drawing (left view) is shown.

  As shown in FIG. 14 (a), the foldable L-shaped baseboard 34 includes a long baseboard body 31, fixing brackets 32 attached to both ends of the baseboard body, and a long baseboard. A long closing plate 36 attached to the main body is provided.

  One or more hinges 37 are provided as a hinge structure between the long closing plate 36 and the long baseboard body 31, and are attached to the long baseboard body 31 so as to be openable and closable. Therefore, it can expand | deploy by rotating the closing board 36 outside, and can also be folded by rotating the closing board 36 to the baseboard main body 31 side. Here, the rotatable angle between the skirting board main body 31 and the closing plate 36 is 95 °. The long baseboard body 31 is formed by bending a long steel sheet having a thickness of about 0.8 to 1.2 mm so that the flat surface has a width of about 10 to 15 cm. And the length of the baseboard main body 31 respond | corresponds to the length of the cloth board 9 with a floor | bed used for a temporary scaffold, and is about 180-183 cm normally.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22 or the column member 3 and fixed to the horizontal beam 23 or the fixing bar 32 attached to both ends of the skirting board main body 31. It can be fixed on the end of the horizontal member 2. Instead of being fixed on the horizontal rail 23 or the end of the horizontal member 2, it may be fixed to the vertical column 22, the column member 3, the handrail member 20, or the handrail frame.

  The foldable L-shaped skirting board 34 includes one or more lock pins 39 that can be operated up and down. Is attached vertically to the skirting board body 31 via the lock pin mounting bracket 39d in a state where a downward urging force is applied by the base plate, and the base end of the closing plate 36 corresponding to the mounting position of the lock pin 39 An angle 40 is attached to the position of the part. Here, the bottom surface 39c of the flange 39b provided at the upper end of the lock pin 39 has a shape cut obliquely. The mounting position of the lock pin 39 and the angle 40 corresponds to the mounting position of the hinge 37.

  The lock pin 39 also includes a small pin 44 on the side surface of the lock pin 39, and can prevent horizontal rotation as in the first embodiment. The method for attaching the coil spring 43 is the same as that in the first embodiment. Therefore, the coil spring 43 can apply a downward urging force to the lock pin 39 via the small pin 44 and the lock pin mounting bracket 39d. When the lock pin 39 is pulled upward, the small pin 44 moves upward in the long hole 45 on the side surface of the lock pin mounting bracket 39d while pushing up the coil spring 43.

  The foldable L-shaped skirting board 34 has an angle 40 attached to the position of the base end portion of the closing plate 36 corresponding to the attachment position of the lock pin 39 as seen in the leftmost end view of FIG. By the action, the state in which the closing plate 36 is expanded can be maintained. This is because a downward biasing force is applied to the lock pin 39 by the coil spring 43, so that the lock pin lower end portion 39a remains at the lowermost end of its operating range, and the closing plate 36 is attached to the base plate body. This is because one side of the angle 40 hits the lock pin lower end portion 39a from the side even if it tries to rotate to the side, and this obstructs the rotation of the closing plate to the side of the skirting board main body.

  Further, as seen in the leftmost view of FIG. 14 (c), the closing plate folded by the hook 39b provided at the upper end portion of the lock pin 39 which is vertically mounted on the baseboard body 31 and can be operated vertically. Since the edge of 36 is hooked, the closed state of the closing plate 36 can be maintained. In addition, since a downward urging force is applied to the lock pin 39 by the coil spring 43, the lock pin lower end portion 39a remains at the lowermost end of the operating range, and the closing plate 36 faces in any direction. The closing plate does not come off from the flange 39b of the lock pin 39. Therefore, the foldable L-shaped skirting board 34 can maintain the folded state regardless of the direction of the closing plate 36 during transportation or storage.

  Next, in order to fold the closing plate 36 to the side of the skirting board main body 31, as shown in FIG. 14 (b), the lock pin 39 is held by hand against the downward urging force of the coil spring 43. If the closing plate 36 is lifted up after being lifted upward, it can be folded to the side of the skirting board main body 31. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is positioned at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is folded. That is, since the edge of the closing plate 36 folded by the flange 39b of the lock pin 39 is hooked, the folded state of the closing plate 36 can be maintained.

  Since the bottom surface 39c of the lock pin ridge has an obliquely cut shape, if the edge of the folded closing plate is adjusted so as to contact the diagonal bottom surface of the lock pin ridge, the lock pin 39 is moved upward by hand. It is only necessary to maintain the state where the edge of the closing plate 36 is folded to the side of the baseboard body 31 in the initial stage. If the lock pin 39 is lifted upward by hand only at this initial stage, the angle 40 attached to the closing plate base end portion 36a will not hit the lock pin lower end portion 39a. Even if the lock pin 39 is returned to the lower side after releasing, the closing plate 36 can be rotated to the baseboard body 31 side. Immediately before the closing plate 36 is folded onto the baseboard body 31, the edge of the folded closing plate 36 comes into contact with the bottom surface 39c of the lock pin collar, but the bottom surface 39c of the lock pin collar is inclined. Since it is cut, the lock pin 39 moves upward against the downward urging force of the coil spring 43 even if the lock pin 39 is not lifted upward by hand. 31 can be accepted. Thereafter, the lock pin 39 is moved downward by the downward urging force of the coil spring 43, so that the closing plate 36 is caught by the hook 39b of the lock pin, and the closing plate 36 can maintain its folded state. .

  Further, in order to deploy the closing plate, as shown in FIG. 14 (c), the lock pin 39 is lifted upward by hand against the downward biasing force of the coil spring 43, and the lock pin 39 is After removing the state where the hook 39b provided at the upper end is caught on the edge of the folded closing plate 36, the closing plate 36 is rotated outward. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is located at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is in a deployed state. That is, even if the closing plate 36 is about to rotate toward the baseboard main body, one side of the angle 40 hits the lock pin lower end portion 39a from the side, so that the closing plate 36 can be maintained in an unfolded state.

  Next, FIG. 15 shows an example when the foldable L-shaped baseboard shown in FIG. 14 is incorporated into a frame scaffold using a building frame. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side.

  Here, one piece of the cloth frame 9 with a floor is composed of two main materials, a long main material composed of a horizontal floor material portion and a cloth material portion formed by bending the side surfaces of both edges, and both ends in the longitudinal direction of the main material. It is composed of a gripping metal fitting 10 attached to a section and a beam member 13 having a U-shaped cross section. It is bridged between facing horizontal rails 23 and used as a work floor or a passage for a temporary scaffold.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22, and fixed metal fittings 32 attached to both ends of the skirting board main body 31 so as to Fixed to. Then, by opening the long closing plate 36 and placing the edge portion on the edge portion of the cloth frame 9 with the floor, the gap 16 generated between the baseboard body 31 and the cloth frame 9 with the floor is closed. Is. Instead of fixing on the end portion of the horizontal rail 23, it may be fixed to the vertical column 22, the handrail member 20, or the handrail frame.

  As described above, when the foldable L-shaped baseboard 34 is installed on the scaffold, the long closing plate 36 can be unfolded and its edge can be placed on the edge of the cloth frame 9 with a floor. In addition, since the unfolded state of the closing plate can be maintained, the gap between the skirting board main body 31 and the cloth frame 9 with a floor can be reliably closed. Therefore, it is possible to prevent the fall of tools, building materials, and the like as well as preventing the operator from falling and falling. Further, the space formed inside the vertical column 22 can be widely used as a work floor or a passage. Note that the foldable L-shaped baseboard 34 is not only a frame scaffold using a building frame but also a wedge-tight scaffold or It can also be installed in system support work.

  Further, the foldable L-shaped baseboard 34 is not only capable of folding the closing plate 36 toward the baseboard body 31 so as not to be bulky when removed from the scaffold and transported or stored. The state can be maintained regardless of the orientation of the closing plate. Therefore, in the handling work during transportation or storage, when the cover plate is folded, the occupied volume can be reduced and the cover plate can be opened regardless of the direction of the cover plate. Since it can prevent, handling work at the time of transportation and storage can be made efficient.

  FIG. 16 is another example of a foldable L-shaped baseboard according to the present invention. (a) is a front view, (b) shows the procedure for folding the closing plate from the unfolded state in the DD cross-sectional view (left side view) of (a), and (c) shows the procedure of (a). The procedure which expand | deploys from the state which folded the closing board in arrow DD sectional drawing (left view) is shown.

  As shown in FIG. 16 (a), the foldable L-shaped baseboard 34 includes a long baseboard body 31, fixing brackets 32 attached to both ends of the baseboard body, and a long baseboard. A long closing plate 36 attached to the main body is provided. However, the closing plate 36 in the fourth embodiment is wider than that in the first embodiment because the gap 16 generated between the baseboard body 31 and the cloth frame 9 with floor is wide.

  One or more hinges 37 are provided as a hinge structure between the long closing plate 36 and the long baseboard body 31, and are attached to the long baseboard body 31 so as to be openable and closable. Therefore, it can expand | deploy by rotating the closing board 36 outside, and can also be folded by rotating the closing board 36 to the baseboard main body 31 side. Here, the rotatable angle between the skirting board main body 31 and the closing plate 36 is 95 °. The long baseboard body 31 is formed by bending a long steel sheet having a thickness of about 0.8 to 1.2 mm so that the flat surface has a width of about 10 to 15 cm. And the length of the baseboard main body 31 respond | corresponds to the length of the cloth board 9 with a floor | bed used for a temporary scaffold, and is about 180-183 cm normally.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22 or the column member 3 and fixed to the horizontal beam 23 or the fixing bar 32 attached to both ends of the skirting board main body 31. It can be fixed on the end of the horizontal member 2. Instead of being fixed on the horizontal rail 23 or the end of the horizontal member 2, it may be fixed to the vertical column 22, the column member 3, the handrail member 20, or the handrail frame.

  The foldable L-shaped skirting board 34 includes one or more lock pins 39 that can be operated up and down. Is attached vertically to the skirting board body 31 via the lock pin mounting bracket 39d in a state where a downward urging force is applied by the base plate, and the base end of the closing plate 36 corresponding to the mounting position of the lock pin 39 An angle 40 is attached to the position of the part. Here, the mounting position of the lock pin 39 and the angle 40 corresponds to the mounting position of the hinge 37.

  However, in this foldable L-shaped skirting board 34, since the width of the closing plate 36 that is folded toward the side of the skirting board body 31 is wide, the position of the hook 39b of the lock pin is larger than the position of the edge of the closing plate 36 that is folded. Also lower. Therefore, since the lock pin ridge 39b hits the closing plate 36 to be folded, the lock pin ridge 39b cannot be hooked on the edge of the closing plate 36 to be folded. Therefore, when the closing plate 36 is folded to the baseboard body 31 side, a through hole 36e is opened at the position of the closing plate 36 corresponding to the position of the lock pin flange 39b, and the lock pin flange is inserted into the through hole 36e. After the housing 39b is accommodated, it is possible to prevent the folded closing plate 36 from being separated from the skirting board body 31 by hooking a lock pin collar 39b on the edge of the through hole 36e.

  The lock pin 39 also includes a small pin 44 on the side surface of the lock pin 39, and can prevent horizontal rotation as in the first embodiment. The method for attaching the coil spring 43 is the same as that in the first embodiment. Therefore, the coil spring 43 can apply a downward urging force to the lock pin 39 via the small pin 44 and the lock pin mounting bracket 39d. When the lock pin 39 is pulled upward, the small pin 44 moves upward in the long hole 45 on the side surface of the lock pin mounting bracket 39d while pushing up the coil spring 43.

  This foldable L-shaped baseboard 34 has an angle 40 attached to the position of the base end portion of the closing plate 36 corresponding to the attachment position of the lock pin 39 as seen in the leftmost end view of FIG. By the action, the state in which the closing plate 36 is expanded can be maintained. This is because a downward biasing force is applied to the lock pin 39 by the coil spring 43, so that the lock pin lower end portion 39a remains at the lowermost end of its operating range, and the closing plate 36 is attached to the base plate body. This is because one side of the angle 40 hits the lock pin lower end portion 39a from the side even if it tries to rotate to the side, and this obstructs the rotation of the closing plate to the side of the skirting board main body.

  Further, as seen in the leftmost drawing of FIG. 16 (c), the closing plate folded by the hook 39b provided at the upper end portion of the lock pin 39 which is vertically mounted on the baseboard body 31 and can be operated vertically. Since the edge of the 36 through-hole 36e is hooked, the closed state of the closing plate 36 can be maintained. In addition, since a downward urging force is applied to the lock pin 39 by the coil spring 43, the lock pin lower end portion 39a remains at the lowermost end of the operating range, and the closing plate 36 faces in any direction. The closing plate does not come off from the flange 39b of the lock pin 39. Therefore, the foldable L-shaped skirting board 34 can maintain the folded state regardless of the direction of the closing plate 36 during transportation or storage.

  Next, in order to fold the closing plate 36 to the side of the skirting board main body 31, as shown in FIG. 16 (b), the lock pin 39 is held by hand against the downward biasing force of the coil spring 43. If the closing plate 36 is lifted up after being lifted upward, it can be folded to the side of the skirting board main body 31. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is positioned at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is folded. That is, since the edge of the through hole 36e of the closing plate 36 folded by the flange 39b of the lock pin 39 is hooked, the folded state of the closing plate 36 can be maintained.

  Further, in order to deploy the closing plate, as shown in FIG. 16 (c), the lock pin 39 is lifted upward by hand against the downward biasing force of the coil spring 43, and the lock pin 39 is After removing the state where the hook 39b provided at the upper end is hooked on the edge of the through hole 36e of the closed closing plate 36, the closing plate 36 is rotated outward. Thereafter, when the hand is released from the lock pin 39, the lock pin 39 is located at the lowermost part of the operating range by the downward urging force of the coil spring 43 and is in a deployed state. That is, even if the closing plate 36 is about to rotate toward the baseboard main body, one side of the angle 40 hits the lock pin lower end portion 39a from the side, so that the closing plate 36 can be maintained in an unfolded state.

  Next, FIG. 17 shows an example when the foldable L-shaped baseboard shown in FIG. 16 is incorporated into a frame scaffold using a building frame. (a) is a plan view, (b) is a right side view, and (c) and (d) are cross-sectional views taken along line DD of (b). In addition, (a) to (c) is a state in which the closing plate is unfolded and its edge is placed on the edge of the cloth frame with a floor, and (d) is the main plate of the baseboard. When it is folded to the side.

  Here, one piece of the cloth frame 9 with a floor is composed of two main materials, a long main material composed of a horizontal floor material portion and a cloth material portion formed by bending the side surfaces of both edges, and both ends in the longitudinal direction of the main material. It is composed of a gripping metal fitting 10 attached to a section and a beam member 13 having a U-shaped cross section. It is bridged between facing horizontal rails 23 and used as a work floor or a passage for a temporary scaffold.

  This foldable L-shaped skirting board 34 has a skirting board main body 31 installed in the vicinity of the vertical column 22, and fixed metal fittings 32 attached to both ends of the skirting board main body 31 so as to Fixed to. Then, by opening the long closing plate 36 and placing the edge portion on the edge portion of the cloth frame 9 with the floor, the gap 16 generated between the baseboard body 31 and the cloth frame 9 with the floor is closed. Is. Here, instead of fixing on the end portion of the horizontal rail 23, it may be fixed to the vertical column 22, the handrail member 20, or the handrail frame.

  As shown in FIG. 17 (d), in the fourth embodiment, the gap 16 generated between the skirting board body 31 and the floor-attached cloth frame 9 is wider than the gap 16 in the first embodiment. Since the foldable L-shaped baseboard closing plate 36 is wide, the gap 16 can be sufficiently closed.

  As described above, when the foldable L-shaped baseboard 34 is installed on the scaffold, the long closing plate 36 can be unfolded and its edge can be placed on the edge of the cloth frame 9 with a floor. In addition, since the unfolded state of the closing plate can be maintained, the gap between the skirting board main body 31 and the cloth frame 9 with a floor can be reliably closed. Therefore, it is possible to prevent the fall of tools, building materials, and the like as well as preventing the operator from falling and falling. Further, the space formed inside the vertical column 22 can be widely used as a work floor or a passage. Note that the foldable L-shaped baseboard 34 is not only a frame scaffold using a building frame but also a wedge-tight scaffold or It can also be installed in system support work.

  Further, the foldable L-shaped baseboard 34 is not only capable of folding the closing plate 36 toward the baseboard body 31 so as not to be bulky when removed from the scaffold and transported or stored. The state can be maintained regardless of the orientation of the closing plate. Therefore, in the handling work during transportation or storage, when the cover plate is folded, the occupied volume can be reduced and the cover plate can be opened regardless of the direction of the cover plate. Since it can prevent, handling work at the time of transportation and storage can be made efficient.

  According to the foldable L-shaped skirting board according to the present invention, the unfolded state of the closing plate can be maintained, so that it is possible to prevent the closing plate from floating even if the wind blows from below after the closing plate is expanded. . In addition, after folding the cover plate, the folded state can be maintained regardless of the direction of the cover plate, so that it is not bulky during transportation and storage, and the handling work during transportation and storage can be made efficient. .

1 Prop 2 Horizontal material (tether)
2a Wedge 3 Strut member 4 Top 5 Jack base 6 Large pulling jack 7 Large pulling material 8 joisting material 9 Cloth frame with floor 10 Grip metal fitting 11 Hose material 12 Hose material 13 Beam material 14 Building 16 Gap 20 Handrail member 21 Brace material 22 Vertical Pillar 23 Horizontal rail 24 Torii frame 25 Stitch 28a Lock bracket 28b Lock bracket 30 Skirting board 31 Baseboard body 32 Fixing bracket 34 L-shaped baseboard 36 Closing board (horizontal board)
36a Base end portion of closing plate 36b Edge portion of closing plate 36c Bending portion of closing plate 36d Closing plate reinforcing plate 36e Through hole of closing plate 37 Hinge 39 Lock pin 39a Lower end portion of lock pin 39b Lock pin collar 39c Bottom 39d Lock pin mounting bracket 40 Angle 43 Coil spring 44 Small pin 45 Long hole 100 System support 101 Concrete structure (slab)
102 formwork

Claims (9)

  A foldable L-shaped skirting board composed of a skirting board body and a closing board attached to the skirting board body by a hinge structure, and a vertically movable locking pin having a ridge at an upper end thereof, It is attached vertically to the skirting board in the applied state, and an angle is attached to the position of the base end of the closing plate corresponding to the attachment position of this lock pin. Both the unfolded state and the folded state can be maintained by making it possible to hit the lower end, and by allowing the hook of the lock pin to be caught on the closing plate in the folded state of the closing plate. A foldable L-shaped skirting board characterized by   2. The foldable L-shaped baseboard according to claim 1, wherein the installation position of the hinge structure corresponds to the position of the lock pin and the position of the angle.   A foldable L-shaped skirting board composed of a skirting board body and a closing board attached to the skirting board body by a hinge structure, and a vertically movable locking pin having a ridge at an upper end thereof, Attached vertically to the skirting board in the applied state, the position of the base end portion of the closing plate corresponding to the mounting position of the lock pin is bent to form a bent portion of the closing plate, and the expansion of the closing plate In the state, the folded portion of the closing plate can be brought into contact with the lower end portion of the lock pin, and in the folded state of the closing plate, the hook of the lock pin can be caught on the closing plate. A foldable L-shaped skirting board characterized in that it can maintain any of the folded states.   4. The foldable L-shaped baseboard according to claim 3, wherein the installation position of the hinge structure corresponds to the position of the lock pin and the position of the folding portion of the closing plate.   The foldable L-shaped width according to any one of claims 1 to 4, wherein the folding plate has a through hole at a position of the closing plate corresponding to a position of the flange of the lock pin when the closing plate is folded. wood.   The foldable L-shaped baseboard according to any one of claims 1 to 5, wherein the bottom surface of the lock pin has an oblique shape.   The foldable L-shape according to any one of claims 1 to 6, wherein the hook provided at the upper end of the lock pin is formed into a hook shape by bending the upper end of the lock pin downward. Baseboard.   The foldable L-shaped skirting board according to any one of claims 1 to 7, wherein a rotatable angle between the skirting board main body and the closing board is 90 to 100 °.   A temporary scaffold comprising the foldable L-shaped baseboard according to any one of claims 1 to 8.

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