Fabric material

Abstract

To provide a cloth material which can be laid between supports by a simple structure while suppressing the influence of the use state of a bracket by another scaffold component member.SOLUTION: A temporary scaffold (1) provided with a plurality of supports (2) erected at intervals in the left-right direction and having a plurality of vertically open hollow socket sections (21) provided at predetermined intervals in the vertical direction at the front, rear, left, and right side sections of each support (2) comprises a cloth material (4) installed between two supports (2) adjacent to each other in the left-right direction, a horizontal cloth material body (5) extending in the left-right direction, and mounting sections (6) formed at the left and right ends of the cloth material (4) body and mounted to the socket sections (21) on the front and rear sides of the two supports (2) adjacent to each other in the left-right direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This invention relates to a fabric material that is installed between posts in temporary scaffolding assembled at construction sites, etc., for example, as a crosspiece for attaching scaffolding boards, etc., or as a handrail to prevent workers from falling from the work floor.

[0002] In this specification and claims, the building side of a temporary scaffold erected around a building (e.g., the far side as viewed from the front in Figures 1(b), 2(b), and 6(b)) is referred to as the "front," and the opposite side of the temporary scaffold from the building (e.g., the near side as viewed from the front in Figures 1(b), 2(b), and 6(b)) is referred to as the "rear." Furthermore, "left and right" refer to left and right as viewed from the front (e.g., right and left in Figures 1(b), 2(b), and 6(b)). However, the designations of the directions of components, etc., in these drawings are for convenience only and do not limit the scope of this invention. Unless specifically stated, the shapes, dimensions, relative positions, etc. of each component described are merely illustrative examples and are not intended to limit the scope of this invention. [Background technology]

[0003] Temporary scaffolding is a work scaffolding set up around a building, such as a house or a building, at a construction site for construction, maintenance, or demolition work. Such scaffolding includes multiple support posts spaced apart in the lateral direction. Each support post is provided with a hollow socket portion that opens at the top and bottom at a predetermined vertical interval. The socket portion can be of a flange type with a total of four locking holes on the front, back, left, and right sides, or a flat U-shaped pocket type with four holes at the same vertical position or at different vertical positions on the front, back, left, and right sides. Typically, a fabric material is erected between two adjacent support posts by attaching attachment portions formed on both ends of the fabric material to the socket portions facing each other in the lateral direction on the two adjacent support posts (see Patent Document 1 below). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3851105 Summary of the Invention [Problem to be solved by the invention]

[0005] In such scaffolding, not only fabric materials but also various scaffolding components such as lead handrails and diagonal braces are arranged using sockets that face each other in the left-right direction on two adjacent posts. As a result, there are cases where the socket to which a fabric material is to be attached is already in use by another scaffolding component, making it impossible to erect the fabric material in the desired position, or there are problems such as high work costs involved in considering the placement positions of each scaffolding component and arranging them.

[0006] This invention has been made in consideration of the above-mentioned problems, and aims to provide a fabric material that can be reliably installed between posts with a simple configuration, while minimizing the impact of the use of the socket part by other scaffolding components. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention comprises the following aspects.

[0008] 1) A temporary scaffolding having a plurality of support posts erected at intervals in the left-right direction, and a plurality of hollow sockets opening at the top and bottom are provided at predetermined intervals in the up-down direction on the front, back, left, and right sides of each support post, is a fabric material that is installed between two adjacent support posts on the left and right, A horizontal fabric body that stretches left and right, and mounting portions formed on both left and right end portions of the fabric material body and attached to the socket portions on the front and rear sides of two adjacent support columns, the mounting portion has a U-shape that can sandwich and contain the socket portion from above and below, and has mounting holes formed in the upper and lower parts of the mounting portion that penetrate in the vertical direction and communicate with the socket portion when the socket portion is sandwiched and contained from above and below; a locking member that is inserted through the mounting hole and the socket portion to prevent the mounting portion from coming off the socket portion, The attachment body is a fabric material configured so that when the socket portion is sandwiched and enclosed from above and below, the distance between the opposing side portions that face the socket portion in the left-right direction and the engaging members is greater than the thickness of the portion of the socket portion that is located between the opposing side portions and the engaging members when the socket portion is sandwiched and enclosed from above and below.

[0009] 2) The fabric material described in 1) above, wherein the attachment body is configured so that the distance between the opposing side portion and the tip of the attachment body is less than half the left-right length of the socket portion. [Effects of the Invention]

[0010] According to the cloth material described in 1) above, it can be erected using the socket portions provided on the front, rear, and side portions of each support, so that even if the opposing socket portions in the left-right direction on two adjacent supports are already in use by other scaffolding components, the cloth material can be erected.In addition, even if there are manufacturing errors or installation errors in the supports or socket portions, or manufacturing errors in the cloth material, these errors can be absorbed and the cloth material can be erected reliably.

[0011] According to the fabric material of 2) above, even if there are manufacturing or installation errors in the support posts or socket parts, or manufacturing errors in the fabric material, these errors can be absorbed and multiple fabric materials can be reliably erected in series in the left-right direction. [Brief explanation of the drawings]

[0012] [Figure 1]1A and 1B are a plan view and a rear view, respectively, of a temporary scaffolding provided with a fabric material according to a first embodiment of the present invention. [Figure 2] 2A and 2B are enlarged views of a main part showing an attachment portion of a fabric material in the temporary scaffolding in the state of FIG. 1, where (a) is a horizontal cross-sectional view and (b) is a rear view. [Figure 3] 1 is an enlarged rear view showing an attachment portion of a fabric material according to a first embodiment of the present invention. [Figure 4] 1A, 1B, and 1C are plan, rear, and side views, respectively, of a fastening member for an attachment portion of a fabric material according to a first embodiment of the present invention; [Figure 5] 1A and 1B are a plan view and a rear view, respectively, of a temporary scaffolding equipped with a fabric material according to a first embodiment of the present invention and having a leading handrail attached to a support pole. [Figure 6] 10A and 10B are enlarged views showing a main part of an attachment portion of a fabric material according to a second embodiment of the present invention, where (a) is a horizontal cross-sectional view and (b) is a rear view. [Figure 7] FIG. 10 is an enlarged side view showing an attachment portion of a fabric material according to a second embodiment of the present invention. [Figure 8] 10A and 10B are a side view and a rear view, respectively, of a fastening member for an attachment portion of a fabric material according to a second embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Fabric materials according to embodiments of the present invention will be described below with reference to the drawings.

[0014] A fabric material (4) according to a first embodiment of the present invention is shown in Figures 1 to 5. The temporary scaffolding (1) has a required number of support posts (2) erected in a row at intervals in the left-right direction (only three support posts (2) are shown in Figure 1). A plurality of hollow sockets (21) that are open at the top and bottom are provided at predetermined intervals in the vertical direction on the front, back, left, and right sides of the surface of each support post (2). In each support post (2), the front, back, left, and right sockets (21) are provided at the same height position, and the front and back sockets (21) are provided at the same height position, and the left and right sockets (21) are arranged so that the upper ends of the left and right sockets (21) are at the same height position as the lower ends of the front and back sockets (21).

[0015] The socket portion (21) is formed by joining a U-shaped pocket metal fitting in a plan view to the surface of each support (2), and the fabric material (4) is installed between the two support (2) adjacent to each other via the socket portions (21) of the two support (2) adjacent to each other on the left and right. The fabric material (4) of this invention is not limited to the temporary scaffolding (1) of the above structure, but can also be installed on other temporary scaffolding, etc., with different types and arrangements of socket portions. Specifically, for example, the fabric material of this invention can also be installed on temporary scaffolding in which a plurality of plates, each of which is approximately doughnut-shaped and has four vertical through-holes at the front, back, left, and right, into which locking portions can be inserted (the front, back, left, and right portions of the plate with vertical through-holes correspond to the above-mentioned socket portions (21)), are attached to each support at predetermined intervals in the vertical direction.

[0016] Furthermore, the fabric material (4) according to the present invention can be installed not only on the temporary scaffolding (1) of the above structure, but also on temporary scaffolding in which the posts are set up in multiple rows in the front and back directions, with multiple posts set up at intervals in the left and right directions in each row.

[0017] The fabric material (4) includes a horizontal fabric material body (5) formed of, for example, a steel pipe material with a circular cross section, extending in the left-right direction, and mounting portions (6) formed on both left and right ends of the fabric material body (5) and attached to socket portions (21) of two adjacent supports (2) on the left and right. Details of the mounting portions (6) will be described later.

[0018] In this embodiment, the fabric material (4) is installed between each of the supports (2) by attaching the mounting portion (6) to the socket portion (21) at the rear side of each of the supports (2). However, the fabric material (4) may also be installed between each of the supports (2) by attaching the mounting portion (6) to the socket portion (21) at the front side of each of the supports (2), the socket portion (21) at the front side of the left support (2) and the socket portion (21) at the rear side of the right support (2), or the socket portion (21) at the rear side of the left support (2) and the socket portion (21) at the front side of the right support (2). Alternatively, if the distance between each support (2) is adjustable or if the cloth material main body (5) is formed from an expandable pipe material or the like, the cloth material (4) can be erected between each support (2) by attaching the mounting portion (6) to the socket portion (21) on the left and right sides of each support (2), and the cloth material (4) can be erected appropriately to suit the configuration of the temporary scaffolding (1), which differs depending on the shape and size of the space to be installed.

[0019] Next, we will explain the attachment portion 6. In the following, we will explain the attachment portion 6 formed on the right end of the fabric material 4 as an example, but the attachment portion 6 formed on the left end of the fabric material 4 has a configuration that is symmetrical to the attachment portion 6 formed on the right end of the fabric material 4.

[0020] The mounting part (6) has a U-shape that can sandwich and contain the socket part (21) from above and below, and includes a mounting part body (7) having mounting holes (71) formed in the upper and lower parts thereof that extend through in the vertical direction and communicate with the socket part (21) when the socket part (21) is sandwiched and contained from above and below, and a locking member (8) that is inserted into the mounting hole (71) and the socket part (21) to prevent the mounting part (6) from coming off the socket part (21).

[0021] The attachment body (7) includes front and rear walls (72, 73) of the same shape and size that are arranged facing each other so as to sandwich the right end of the fabric body (5) from the front and rear, and that are U-shaped when viewed from the front to back. A side wall (74) connects the right ends of the front and rear walls (72, 73). The front and rear walls (72, 73) include opposing sides (77) that extend vertically so as to face the left side of the socket (21) when the attachment body (7) contains the socket (21), and upper and lower sides (78) that extend rightward from the upper and lower ends of the opposing sides (77) and extend horizontally so as to face the upper and lower sides of the socket (21) when the attachment body (7) contains the socket (21). In other words, an opening toward the right is formed by the space defined by the opposing sides (77) and the upper and lower sides (78), and the attachment body (7) is configured to be U-shaped when viewed from the front to back. With this configuration, when installed, the opposing sides 77 of the front and rear walls 72, 73 are arranged opposite the left surface of the socket 21, and the upper and lower sides 78 are arranged opposite the upper and lower surfaces of the socket 21, so that the mounting body 7 can sandwich the socket 21 from above and below. Note that the side wall 74 is not formed between the opposing sides 77 of the front and rear walls 72, 73.

[0022] In this embodiment, the attachment body (7) is made of a rectangular steel plate with rounded corners, cut out in the center, and then bent into a U-shape in plan view. The left and right edges of the cut-out rectangle form opposing sides (77), and the upper and lower edges form upper and lower side portions (78). The inner surfaces of the left ends of the front and rear walls (72, 73) are welded to the right end of the fabric material body (5), thereby joining the attachment body (7) to the fabric material body (5). The attachment hole (71) is formed as a space surrounded by the front and rear walls (72, 73), the side wall (74), and the leading end of the fabric material body (5). Furthermore, a crushable portion is formed at the leading end of the fabric material body (5) by being crushed in the front-rear direction. The formation of the crushable portion forms a flat surface facing the front-rear direction at the leading end of the fabric material body (5), increasing the joint surface area between the attachment body (7) and the inner surfaces of the front and rear walls (72, 73), thereby improving the durability of the fabric material (4). Furthermore, by forming the crushing portion, the front-to-rear length of the tip of the fabric material main body (5) is reduced, and interference with other scaffolding components that use socket portions (21) in the vicinity of the socket portion (21) to which the attachment portion (6) is attached is suppressed, thereby improving the flexibility of the scaffolding configuration. Note that the attachment portion main body (7) may be formed integrally with the fabric material main body (5) by processing the end of the fabric material main body (5) so that it is U-shaped when viewed from the back and forming attachment holes (71).

[0023] Furthermore, when two or more fabric materials (4) are arranged in series, i.e., when two or more fabric materials (4) are arranged consecutively in the left-right direction, the attachment portions (6) formed on the opposing ends of two adjacent fabric materials (4) are attached to the same socket portion (21). Specifically, the distance between the opposing side portions (77) of the attachment portion main body (7) and the right ends of the front and rear walls (72, 73) is configured to be equal to or less than half the left-right length of the socket portion (21). With this configuration, as shown in FIG. 2, when the attachment portion main body (7) is positioned to sandwich and enclose the socket portion (21) in order to attach the attachment portion (6) to the socket portion (21), the attachment portion (6) of the right-side fabric material (4) and the attachment portion (6) of the left-side fabric material (4) are attached to one socket portion (21) while facing each other in the left-right direction. Furthermore, it is preferable that the mounting body (7) is configured so that it is possible to install one of the two fabric materials (4) shown in Figure 2(a) rearward at a right angle to the other fabric material (4), rather than only in the case where the fabric materials (4) are arranged consecutively in the left-right direction.

[0024] 3 and 4, the locking member (8) is a generally vertically elongated plate-like body that is arranged within the attachment body (7) so as to be movable up and down. The locking member (8) has a protruding side head portion (81) that protrudes horizontally outward (to the left in this embodiment) from its upper end. The attachment body (7) includes a locking member holding bar (75) that is inserted into a hole that is formed in the upper part of the attachment body (7) in the front-rear direction and that is arranged to span and fasten between the inner surfaces of the front and rear walls (72, 73) of the attachment body (7). When the locking member 8 is moved downward, the lower end of the protruding side head 81 comes into contact with the locking member holding bar 75, preventing the locking member 8 from moving further downward and functioning as a locking member fall-off prevention portion 81 that prevents the locking member 8 from falling off the attachment body 7, and essentially defines the lower limit of the vertical movement stroke of the locking member 8. Note that the locking member fall-off prevention portion 81 is not limited to the above configuration, and may be formed to protrude outward in one or more directions, either front, rear, left, or right, so as to engage with the upper end opening edge of the attachment body 7. Furthermore, the locking member fall-off prevention portion 81 may be formed as a separate member attached to the upper end of the locking member 8, but if it is formed as a protruding side head portion 81 formed integrally with the upper end of the locking member 8 by bulging it out as in this embodiment, it is easier to manufacture the locking member 8 and is advantageous in terms of load-bearing strength. Note that the locking member holding bar 75 is not limited to the above, and may be any bar that is secured across the upper sides of the inner surfaces of the front and rear walls 72, 73 of the mounting portion main body 7 and is disposed inside the mounting hole 71.

[0025] The lower end of the locking member 8 is provided with a protruding tip 82 that protrudes horizontally outward (outward in the front-rear direction in this embodiment). Anti-slip projections 76 that protrude opposite each other are formed at the upper ends of the inner surfaces of the front and rear walls 72, 73. When the locking member 8 is moved upward, the protruding tip 82 abuts against the lower ends of the anti-slip projections 76, preventing further upward movement of the locking member 8. This prevents the locking member 8 from escaping from the mounting body 7, thereby essentially defining the upper limit of the vertical stroke of the locking member 8. In this embodiment, the locking member anti-slip projection 82 is formed, for example, by the head of a screw inserted into a screw hole that penetrates the lower end of the locking member 8 in the front-rear direction and the tip protruding from the screw hole. The locking member (8), the locking member escape prevention portion (82), the front and rear walls (72, 73), and the retaining projection (76) are configured so as not to hinder the vertical movement of the locking member (8) and to reliably prevent the locking member (8) from escaping from the mounting portion main body (7).

[0026] An arc-shaped recess (83) is formed in the lower part of the left side surface of the locking member (8). When the locking member (8) is moved upward and reaches the upper limit of its vertical movement stroke where the protrusion (82) abuts against the lower end of the retaining protrusion (76), the locking member (8) is tilted to the left, and the locking member holding bar (75) fits into the arc-shaped recess (83). With the locking member holding bar (75) fitting into the arc-shaped recess (83) and the protrusion (82) abutting against the lower end of the retaining protrusion (76), the locking member (8) is held in a tilted state in a direction along the fabric main body (5). With this configuration, the locking member (8) can be held in a state where it is removed from the socket portion (21), and therefore, when attaching or detaching the attachment portion (6) to or from the socket portion (21), the user can perform the operation with one hand, thereby improving workability. In addition, in this state, it is preferable that the lower end of the locking member (8) is configured to abut against the inner surface of the side wall (74), so that the locking member (8) is securely held in a state inclined in a direction along the fabric main body (5).

[0027] The locking member holding bar 75 and the protrusion (locking member escape prevention portion) 82 preferably have a circular cross section. This configuration makes it easier to tilt the locking member 8, and ensures that the locking member holding bar 75 is securely held in the arc-shaped recess 83. Furthermore, the locking member 8 is preferably configured such that, when the locking member 8 is inserted into the mounting hole 71 and moved downward to reach the lower limit of its vertical movement stroke, the portion of the lower end of the locking member 8 where the protrusion 82 is formed protrudes downward from the lower edge of the mounting portion main body 7. Furthermore, when an external force acts to tilt the locking member 8 to the left midway through the vertical stroke of the locking member 8, the left side surface of the locking member 8 abuts against the locking member holding bar 75, and the right side surface of the locking member 8 abuts against the inner surface of the side wall 74 of the mounting body 7, preventing the tip of the locking member 8 from protruding laterally from the mounting body 7. This configuration eliminates the risk of the locking member 8 protruding laterally from coming into contact with other scaffolding components and being damaged when transporting the fabric material 4. It is also preferable that a hook hole 84 extending through the upper portion of the locking member 8, more specifically, in the portion that protrudes above the upper end of the mounting body 7 at the lower limit of the vertical stroke of the locking member 8, be formed. With this configuration, the user can insert his / her fingers or a rod-shaped tool such as a crowbar into the hook hole (84) to pry up the locking member (8), improving the workability when moving the locking member (8) upward.

[0028] The locking member 8 is arranged in the mounting body 7 so as to be vertically movable, using the following process. First, the locking member 8, with the locking member escape prevention portion (screw) 82 removed, is inserted into the mounting hole 71 from above the mounting body 7 and moved downward. When the protruding side head (locking member escape prevention portion) 81 abuts against the locking member holding bar 75, i.e., when the locking member 8 reaches the lower limit of its vertical stroke, the lower end of the locking member 8, including the screw hole, protrudes downward from the lower end of the mounting body 7. In this state, the locking member escape prevention portion (screw) 82 is attached to the locking member 8. This activates the locking member escape prevention portion 81 and the locking member escape prevention portion 82, and the locking member 8 is arranged in the mounting body 7 so as to be vertically movable, with the upper and lower limits of the locking member 8's vertical stroke being determined.

[0029] Next, the steps for attaching and detaching the mounting portion (6) to the socket portion (21) will be described. First, the locking member (8) is moved to the upper limit of its vertical stroke, where the protrusion (82) abuts against the lower end of the retaining projection (76). The locking member (8) is then tilted to the left, so that the locking member holding bar (75) fits into the arc-shaped recess (83) and the lower ends of the protrusion (82) and the retaining projection (76) abut, thereby holding the locking member (8) in a tilted position along the fabric material main body (5). Next, the fabric material (4) is moved so that the mounting portion (6) sandwiches and encloses the socket portion (21) from above and below, and the socket portion (21) and the mounting hole (71) are in communication with each other. The locking member (8) is then tilted to the right, approximately vertical, and inserted into the socket portion (21) and the mounting hole (71). The locking member (8) is then moved to the lower limit of its vertical stroke, where its protruding side head (81) abuts against the locking member holding bar (75). In this manner, the mounting portion (6) is attached to the socket portion (21). Next, the user inserts their finger or a rod-shaped tool such as a crowbar into the hook hole (84) at the top of the locking member (8) to pry up the locking member (8) and pull it out of the lower part of the mounting hole (71) and the socket portion (21). The locking member (8) is then moved further upward, to the upper limit of its vertical stroke. The locking member (8) is then tilted to the left so that it is held in a tilted position along the fabric main body (5). By moving the fabric material (4) in this state, the mounting portion (6) is removed from the socket portion (21).

[0030] Furthermore, the mounting portion 6 is configured so that the distance between the opposing side portions 77 of the mounting portion main body 7 and the engaging member 8 is greater than the thickness of the portion of the socket portion 21 located between the opposing side portions 77 and the engaging member 8 (in this embodiment, the left wall) when the mounting portion 6 sandwiches and encloses the socket portion 21 from above and below. With this configuration, a gap is formed in the left-right direction between the engaging member 8 and the inner surface of the socket portion 21 when the mounting portion main body 7 abuts against the socket portion 21 from the left-right direction. Specifically, when the mounting portion 6 is attached to the socket portion 21, it is preferable that a gap of a predetermined size be formed between the opposing left and right inner surfaces of the engaging member 8 and the engaging member 8 of the socket portion 21 when the opposing side portions 77 of the mounting portion main body 7 abut against the left and right outer surfaces of the socket portion 21. As in the above configuration, a gap is formed between the opposing side portion (77) and the engaging member (8) through which the socket portion (21) can move relatively in the left-right direction. Therefore, even if there are manufacturing errors or installation errors in the support (2) or socket portion (21) or manufacturing errors in the cloth material (4), these errors are absorbed and the cloth material (4) can be reliably installed between each support (2).

[0031] In addition, due to the above configuration and the configuration in which the distance between the opposing edge portion (77) and the tip end (right end in this embodiment) of the front and rear walls (72, 73) is less than half the left-right length of the socket portion (21), when two or more fabric materials (4) are arranged in series, i.e., when two mounting portions (6) are attached face-to-face to the same socket portion (21), the two mounting portions (6) attached to the same socket portion (21) can move relative to each other from a state in contact with each other to a state separated in the left-right direction, and even if there are manufacturing errors or installation errors in the support (2) or socket portion (21) or manufacturing errors in the fabric material (4), these errors can be absorbed, and the two mounting portions (6) can be reliably attached face-to-face to the same socket portion (21), allowing the fabric materials (4) to be arranged in series.

[0032] Figure 5 shows a temporary scaffolding (11) in which the required number of pillars (2) are set up in a row at intervals in the left-right direction, with leading handrails (9) and fabric materials (4) installed between each pillar (2) (only three pillars (2) are shown in Figure 5).

[0033] The leading handrail (9) is made of, for example, a horizontal handrail body (91) extending in the left-right direction, formed of a steel pipe material or the like with a circular cross section, and two left and right engaging members whose upper ends are connected to the left and right ends of the handrail body (91) by connecting pins (93) with circular cross sections extending in the front-rear direction so as to be rotatable about a rotation center axis extending in the front-rear direction, and whose lower ends have insertion portions (94) that are inserted into socket portions (21) provided at a predetermined height position (the highest position in FIG. 5) on the opposite sides of the two support posts (2). The brace (95) includes a member (92) and two braces (95) whose one end is rotatably connected to the intermediate portion of each of the left and right engaging members (92) between the connecting portion to the handrail main body (91) and the insertion portion (94) around a pivot axis extending in the front-to-rear direction, and whose other end is detachably attached to a predetermined height position below the socket portions (21) into which the insertion portions (94) of the two support posts (2) are inserted, and are diagonally installed so as to cross each other between the two support posts (2). The other end of each brace (95) is provided with a connecting portion (96) that is detachably attached to a socket portion (21) below (the lowest position in FIG. 5 ) the socket portion (21) into which the insertion portions (94) of the two support posts (2) are inserted. The connecting portion (96) has a U-shape that opens outward in the left-to-right direction when viewed from the rear. The connecting portion (96) is not limited to the above configuration and may be, for example, a clamp.

[0034] Next, a fabric material (104) according to a second embodiment of the present invention will be described with reference to Figures 6 to 8. The following will describe in detail the attachment parts that differ in configuration from the fabric material (4) according to the first embodiment, but the configurations that are not described will be the same as those of the fabric material (4) according to the first embodiment. The following will also describe the attachment part (106) formed on the right end of the fabric material (104) as an example, but the attachment part (106) formed on the left end of the fabric material (104) has a configuration that is symmetrical to the attachment part (106) formed on the right end of the fabric material (104).

[0035] The mounting portion (106) has a U-shape that can sandwich and contain the socket portion (21) from above and below, and includes a mounting portion body (107) having mounting holes (171) formed in the upper and lower parts thereof that extend vertically through the mounting portion body (107) and communicate with the socket portion (21) when the socket portion (21) is sandwiched and contained from above and below, and a locking member (108) that is inserted into the mounting holes (171) and the socket portion (21) and prevents the mounting portion (106) from coming off the socket portion (21).

[0036] The attachment body (107) includes front and rear walls (172, 173) that are U-shaped when viewed from the rear and are arranged in parallel to sandwich the right end of the fabric body (5) from the front and rear, and a side wall (174) that connects the right ends of the front and rear walls (172, 173). The attachment body (107) does not have a side wall (174) in the U-shaped opening of the front and rear walls (172, 173), i.e., in the vertical center of the right edges of the front and rear walls (172, 173). With this configuration, when installed, the vertical center of the right edges of the front and rear walls (172, 173) is positioned opposite the left face of the socket (21), and the upper and lower ends of the front and rear walls (172, 173) are positioned opposite the upper and lower faces of the socket (21), allowing the attachment body (107) to sandwich the socket (21) from above and below within the U-shaped opening.

[0037] The mounting portion main body (107) is configured so that, when the mounting portion (106) is attached to the socket portion (21), the rear wall (173) is located rearward of the rear edge of the socket portion (21) in a plan view. Front and rear depending pieces (178) extend downward from the lower edges of the upper right ends of the front and rear walls (172, 173). Furthermore, a right depending piece (179) extends downward from the lower edge of the upper side wall (174). When the mounting portion main body (107) is positioned so as to enclose the socket portion (21) in the U-shaped opening of the front and rear walls (172, 173), the front depending piece (178) is located within the socket portion (21), and the rear depending piece (178) is located facing the rear surface of the socket portion (21). The right-hand hanging piece 179 is configured to be disposed inside the socket 21 when the mounting body 107 is disposed so as to enclose the socket 21 in the U-shaped opening of the front and rear walls 172, 173. The vertical length of the U-shaped opening of the front and rear walls 172, 173 is preferably configured to be longer than the combined vertical length of the socket 21 and the right-hand hanging piece 179. With this configuration, when the mounting portion main body (107) is positioned so that the socket portion (21) is contained within the U-shaped opening of the front and rear walls (172, 173), the rear side of the socket portion (21) is sandwiched between the rear hanging piece (178) and the right hanging piece (179). Furthermore, when the fabric material (104) moves to the left, the front hanging piece (178) abuts against the inner surface of the left side of the socket portion (21), restricting further movement of the fabric material (104) to the left.As a result, for example, in order to attach the mounting part (6) to the socket part (21), the mounting part main body (7) is positioned so that the socket part (21) is contained within the U-shaped opening of the front and rear walls (172, 173), and even if the user temporarily releases their hands from the fabric main body (5) or the mounting part main body (107) when operating the locking member (108), the mounting part main body (107) is maintained in the U-shaped opening of the front and rear walls (172, 173) with the socket part (21) contained within, and the insertion state of the mounting hole (171) and the socket part (21) is also maintained, and the front and rear side hanging pieces (178) and the right side hanging piece (179) function as temporary placement locking parts (177) for temporarily placing the mounting part (106) on the socket part (21) before inserting the locking member (108) into the socket part (21). The temporary placement locking portion (177) is not limited to the above configuration and may be formed in a portion of the attachment body (107) positioned above the socket portion (21) and may be configured with at least two hanging pieces, at least one of which engages with the inner surface of the socket portion (21) and at least one of which engages with the outer surface of the socket portion (21). With this configuration, even if the user temporarily releases the attachment body (107) while the attachment portion (6) is placed on the socket portion (21), the attachment body (107) remains placed on the socket portion (21), allowing for safe operation of the locking member (108), improving safety and operability. The front and rear hanging pieces (178) and the right hanging piece (179) (temporary placement locking portion (177)) can also be applied to the fabric material (4) according to the first embodiment.

[0038] As shown in Figures 7 and 8, the locking member (108) is a generally elongated plate-like body that is disposed within the attachment body (107) so as to be vertically movable. The locking member (108) has a protruding side head (181) that protrudes horizontally outward (to the left in this embodiment) from its upper end. The attachment body (107) includes a locking member holding bar (175) that spans the upper end of the attachment body (107). When the locking member (108) is moved downward, the lower end of the protruding side head (181) abuts against the locking member holding bar (175), preventing the locking member (108) from further descending. This prevents the locking member (108) from falling off the attachment body (107). The locking member fall-off prevention portion (181) is not limited to the above configuration, and may be formed to protrude outward in one or more directions, such as front, rear, left, or right, so as to engage with the upper opening edge of the attachment body (7). The locking member fall-off prevention portion (181) may be formed as a separate member attached to the upper end of the locking member (108). However, if the locking member (108) is formed as a protruding side head portion (181) integrally formed by bulging the upper end of the locking member (108), as in this embodiment, the locking member (108) can be easily manufactured and has an advantage in terms of load-bearing strength. The locking member holding bar (175) is not limited to the above configuration, and may be secured between the upper sides of the inner surfaces of the front and rear walls (172, 173) of the attachment body (107).

[0039] The lower end of the locking member 108 is provided with a protruding tip 182 that protrudes horizontally outward (to the left in this embodiment). When the locking member 108 is moved upward, the protruding tip 182 abuts against the locking member holding bar 175, preventing the locking member 108 from moving further upward. This functions as a locking member escape prevention portion 182 that prevents the locking member 108 from escaping from the mounting body 107, and essentially defines the upper limit of the vertical movement stroke of the locking member 108. In this embodiment, the locking member escape prevention portion 182 is formed, for example, by the head of a screw that is fitted into a hole formed in the left surface of the lower end of the locking member 108. The locking member (108), the locking member escape prevention portion (182), the front and rear walls (172, 173), and the locking member holding bar (175) are configured so as not to hinder the vertical movement of the locking member (108) and to reliably prevent the locking member (108) from escaping from the mounting portion main body (107).

[0040] The locking member 108 has a tapered shape in which its front-to-rear length becomes shorter from its upper end to its lower end, and the front-to-rear length at the upper end is longer than the front-to-rear length of the inner surface of the socket portion 21, while the front-to-rear length at the lower end is shorter than the front-to-rear length of the inner surface of the socket portion 21. In particular, it is preferable that at least the rear surface of the locking member 108 is inclined downward toward the front at the same angle as the inclination angle of the rear inner surface of the socket portion 21. With this configuration, when the locking member 108 is moved downward within the socket 21 to attach the mounting portion 106 to the socket 21, the front surface of the locking member 108 presses against the inner surface of the rear wall 173 of the mounting portion main body 107 and / or the outer surface of the support 2 or the inner front surface of the socket 21, and the rear surface of the locking member 108 presses against the inner rear surface of the socket 21, thereby fixing the mounting portion main body 107 and the locking member 108 to the socket 21. In other words, the locking member 108 functions as a wedge member, and the mounting portion 106 is securely attached to the socket 21. Furthermore, as with the fabric material (4) according to the first embodiment, even if the attachment body (107) is configured such that a gap is formed between the inner surface of the side wall (174) and the inner surface of the left side of the socket (21) that allows the locking member (108) to move left and right when attached to the socket (21), the locking member (108) functions as a wedge member, reliably fixing the attachment body (107) and the locking member (108) to the socket (21), thereby preventing rattling of the fabric material (104). Furthermore, it is preferable that the attachment body (107) and the locking member (108) are configured so that they are symmetrical from front to back when viewed from the left and right. This configuration allows for no restrictions on the direction in which the fabric material (104) can be installed, improving workability.

[0041] The locking member 108 is configured so that the front-to-rear length of its lower end is shorter than the front-to-rear length of the inner surface of the socket portion 21. Therefore, when the locking member 108 is moved upward and tilted backward with the locking-member escape prevention portion 182 in contact with the pin holding bar 175, the rear surface of the locking member 108 comes into contact with the upper edge of the rear wall 173, and the locking member 108 is held in a tilted rearward position. This configuration allows the locking member 108 to be held in a state removed from the socket portion 21, thereby improving operability by allowing the user to attach or detach the attachment portion 106 to or from the socket portion 121 with one hand. In this state, the lower end of the locking member (108) is preferably configured to abut against the inner surface of the side wall (74), thereby reliably holding the locking member (8) in a tilted position along the fabric body (5). The locking member holding bar (175) and the protrusion (locking member escape prevention portion) (182) preferably have a circular cross section. This configuration makes it easier to tilt the locking member (108). In addition, the locking member (108) is preferably configured so that when the locking member (108) is inserted into the mounting hole (171) and driven downward to function as a wedge member, and is fixed to the socket portion (21) together with the mounting body (107), the lower end of the locking member (108) protrudes downward from the lower edge of the mounting body (107). Furthermore, it is preferable that a hook hole 184 extending in the front-to-rear direction be formed in the upper portion of the locking member 108, more specifically, in the portion that protrudes upward from the upper end of the mounting body 107 when the locking member 108 is fixed to the socket portion 21 together with the mounting body 107. This configuration allows the user to insert their finger or a rod-shaped tool such as a crowbar into the hook hole 184 to pry up the locking member 108, improving the operability when moving the locking member 108 upward.

[0042] The locking member 108 is arranged in the mounting body 107 so as to be movable up and down in the following manner. First, the locking member 108, with the locking member escape prevention portion (screw) 182 removed, is inserted into the mounting hole 171 from above the mounting body 107 and moved downward. When the protruding side head (locking member escape prevention portion) 181 reaches a position where it abuts against the locking member holding bar 175, the lower end of the locking member 108, including the screw hole, protrudes downward from the lower end of the mounting body 107. In this state, the locking member escape prevention portion (screw) 182 is attached to the locking member 108. This allows the locking member fall-off prevention portion (181) and the locking member escape prevention portion (182) to function, and the locking member (108) is positioned so that it can move freely up and down within the mounting portion main body (107) while the upper and lower limits of the up and down movement stroke of the locking member (108) are defined.

[0043] Next, the steps for attaching and detaching the mounting portion 106 to the socket portion 21 will be described. First, the locking member 108 is moved to the upper limit of its vertical stroke, where the protrusion 182 abuts against the locking member holding bar 175, and the locking member 108 is tilted rearward so that it is held in abutting contact with the upper edge of the rear wall 173. Next, the fabric material 104 is moved so that the mounting portion 106 vertically sandwiches and encloses the socket portion 21, and the socket portion 21 and the mounting hole 171 are in communication with each other. Then, the locking member 108 is tilted forward to a substantially vertical position, inserted into the socket portion 21 and the mounting hole 171, and hammered into place by striking the upper end with a tool or the like. The locking member 108 is then moved downward until its front surface presses against the inner surface of the rear wall 173 of the mounting portion main body 107 and / or the outer surface of the support 2 or the inner front surface of the socket portion 21, and its rear surface presses against the inner rear surface of the socket portion 21, i.e., until the locking member 108 functions as a wedge. The rear and right hanging pieces 178 and 179 form a temporary locking portion () that allows the mounting portion 106 to be temporarily placed in the socket portion 21, allowing the user to perform the above-mentioned hammering operation with both hands. In this way, the mounting portion 106 is fixed to the socket portion 21. Next, the lower end of the locking member 108 is struck with a tool or the like to knock it up from below, or the user's fingers or a rod-shaped tool such as a crowbar are inserted into the hook hole 184 at the top of the locking member 108 to pry up the locking member 108 and pull it out from the lower part of the mounting hole 171 and the socket portion 21, and then move it further upward until it reaches the upper limit of its vertical stroke. The locking member 108 is then tilted backward so that it is held in a tilted rearward position. By moving the fabric material 104 in this state, the mounting portion 106 is removed from the socket portion 21.

[0044] According to the fabric material (4) (104) of this invention, the fabric material (4) (104) can be reliably erected at a desired height position with a simple configuration and without interfering with other scaffolding components such as the leading handrail (9). [Industrial Applicability]

[0045] The present invention is suitably used as a fabric material to be stretched between supports in temporary scaffolding assembled at construction sites and the like. [Explanation of symbols]

[0046] (1) Temporary scaffolding (2) Support (21) Socket part (4)(104) Cloth material (5) Fabric body (6)(106) Mounting part (7)(107) Mounting body (71)(171) Mounting holes (72)(172) Front wall (73)(173) Back wall (74)(174) Side wall (75)(175) Locking member holding bar (76) Protrusion for preventing slipping out (77) Opposite side (78) Upper and lower edges (177) Temporary placement locking part (178) Anteroposterior hanging piece (179) Right side hanging piece (8) (108) Locking member (81)(181) Locking member fall-off prevention part (protruding side head) (82)(182) Locking member escape prevention part (protruding part) (83) Arc-shaped depression (84) Hook hole (9) Leading handrail

Claims

1. A temporary scaffolding is provided with a plurality of support posts erected at intervals in the left-right direction, and a plurality of hollow sockets opening at the top and bottom are provided at predetermined intervals in the up-down direction on the front, back, left, and right sides of each support post, and a fabric material is installed between two adjacent support posts on the left and right, A horizontal fabric body that stretches left and right, and mounting portions formed on both left and right end portions of the fabric material body and attached to the socket portions on the front and rear sides of two adjacent support columns, the mounting portion has a U-shape that can sandwich and contain the socket portion from above and below, and has mounting holes formed in the upper and lower parts of the mounting portion that penetrate in the vertical direction and communicate with the socket portion when the socket portion is sandwiched and contained from above and below; a locking member that is inserted through the mounting hole and the socket portion to prevent the mounting portion from coming off the socket portion, The attachment body is a fabric material configured so that when the socket portion is sandwiched and enclosed from above and below, the distance between the opposing side portions that face the socket portion in the left-right direction and the engaging members is greater than the thickness of the portion of the socket portion that is located between the opposing side portions and the engaging members when the socket portion is sandwiched and enclosed from above and below.

2. The fabric material according to claim 1 , wherein the attachment body is configured such that the distance between the opposing side portion and the tip of the attachment body is equal to or less than half the left-right length of the socket portion.

Images