Fabric material

Abstract

To suppress the influence of the use status of the money receiver by other scaffold components and provide a cloth material that can be installed between columns with a simple structure. 【Solution means】The cloth material 4 includes a plurality of columns 2 erected at intervals in the left-right direction. In a temporary scaffold 1 in which a plurality of hollow socket parts 21 opened vertically are provided at predetermined intervals in the vertical direction on the front, rear, left, and right side parts of each column 2, the cloth material 4 is installed between two adjacent columns 2 on the left and right. It includes a horizontal cloth material body 5 extending in the left-right direction and attachment parts 6 formed at both left and right ends of the cloth material 4 body and attached to the socket parts 21 on the front and rear side parts of two adjacent columns 2 on the left and right.

Description

Technical Field

[0001] The present invention relates to a cloth material installed between columns, for example, as a crossbar for attaching a scaffold board or the like, or as a handrail for preventing an operator from falling from a work floor, in a temporary scaffold assembled at a construction site or the like.

[0002] In this specification and the claims, the side of the building in a temporary scaffold erected around the building (for example, the back side in FIGS. 1(b), 2(b) and 6(b)) is referred to as "front", and the side opposite to the building in the temporary scaffold (for example, the front side in FIGS. 1(b), 2(b) and 6(b)) is referred to as "rear". Also, "left and right" refers to the left and right when viewed from the front (for example, the right and left in FIGS. 1(b), 2(b) and 6(b)). However, the reference to the direction of components or the like based on the direction in these drawings is for convenience and does not limit the scope of the present invention. The shape, dimensions, relative arrangement, etc. of each component described are not intended to limit the scope of the present invention thereto without specific description, but are merely illustrative examples.

Background Art

[0003] A temporary scaffold is a working scaffold installed around a building at a construction site for, for example, construction work, maintenance work, and demolition work of buildings such as houses and buildings. In such a scaffold, a plurality of columns are erected at intervals in the left-right direction. Each column is provided with a hollow socket portion that opens vertically at predetermined intervals in the vertical direction. The socket portion has a flange type with a total of four locking holes in the front, rear, left, and right, or a total of four flat U-shaped pocket types with the same vertical positions in the front, rear, left, and right, or with different vertical positions in the front-rear and left-right directions respectively. Usually, the cloth material is installed between two adjacent columns on the left and right by attaching the attachment portions formed at both ends of the cloth material to the opposing socket portions in the left-right direction of two adjacent columns on the left and right (see Patent Document 1 below).

Prior Art Documents

Patent Document

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In such a scaffold, not only the cloth material but also various scaffold component members such as handrails and crossbars are arranged using socket portions facing each other in the left - right direction on two adjacent columns on the left and right. Therefore, there is a case where the socket portion where the cloth material is to be attached is already used by other scaffold component members and the cloth material cannot be installed at the desired position, or there is a problem that the work cost for considering and arranging the installation positions of the respective scaffold component members increases.

[0006] This invention has been made in view of the above problems, and aims to provide a cloth material that can be surely installed between columns with a simple structure, suppressing the influence of the usage status of the socket portion by other scaffold component members.

Means for Solving the Problems

[0007] In order to achieve the above object, this invention is composed of the following aspects.

[0008] 1) In a temporary scaffold having a plurality of columns erected at intervals in the left - right direction, and a plurality of hollow socket portions that are vertically open and are provided at predetermined intervals in the vertical direction on each of the front, rear, left, and right side portions of each column, a cloth material installed between two adjacent columns on the left and right, A horizontal cloth material body extending in the left - right direction, And attachment portions formed at both left and right ends of the cloth material body and attached to the socket portions on the front and rear side portions of two adjacent columns on the left and right. The attachment portion has a U-shaped configuration that can enclose the socket portion from above and below, and attachment holes that communicate with the socket portion when the socket portion is enclosed while being sandwiched from above and below are formed in a vertically penetrating manner in its upper and lower portions, an attachment portion main body; a locking member that is inserted into the attachment hole and the socket portion to prevent the attachment portion from coming off the socket portion, and the attachment portion main body has opposing side portions that face the socket portion in the left-right direction when the socket portion is enclosed while being sandwiched from above and below, and Engaging member the distance between them is configured to be larger than the thickness of the portion of the socket portion located between the opposing side portions when the socket portion is enclosed while being sandwiched from above and below, a cloth material. The engaging member

[0009] 2) The cloth material according to 1) above, wherein the attachment portion main body is configured such that the distance between the opposing side portions and the tip end portion of the attachment portion main body is half or less of the left-right length of the socket portion.

Advantages of the Invention

[0010] According to the cloth material of 1) above, since it can be installed using the socket portions provided on the front and rear side portions of each support column, even when the socket portions facing each other in the left-right direction in two adjacent support columns on the left and right are already used by other scaffold components, the cloth material can be installed, and even when there are manufacturing errors or installation errors in the support columns and socket portions, or manufacturing errors in the cloth material, those errors can be absorbed and the cloth material can be installed reliably.

[0011] According to the cloth material of 2) above, even when there are manufacturing errors or installation errors in the support columns and socket portions, or manufacturing errors in the cloth material, those errors can be absorbed and a plurality of cloth materials can be installed in series in the left-right direction reliably.

Brief Description of the Drawings

[0012] [Fig. 1]A temporary scaffold equipped with a fabric material according to a first embodiment of the present invention, where (a) is a plan view and (b) is a rear view. [Fig. 2] A partial enlarged view showing the attachment portion of the fabric material in the temporary scaffold in the state of FIG. 1, where (a) is a horizontal cross-sectional view and (b) is a rear view. [Fig. 3] An enlarged rear view showing the attachment portion of the fabric material according to the first embodiment of the present invention. [Fig. 4] A locking member for the attachment portion of the fabric material according to the first embodiment of the present invention, where (a) is a plan view, (b) is a rear view, and (c) is a side view. [Fig. 5] A temporary scaffold equipped with a fabric material according to the first embodiment of the present invention and having a handrail attached to a support column, where (a) is a plan view and (b) is a rear view. [Fig. 6] A partial enlarged view showing the attachment portion of the fabric material according to the second embodiment of the present invention, where (a) is a horizontal cross-sectional view and (b) is a rear view. [Fig. 7] An enlarged side view showing the attachment portion of the fabric material according to the second embodiment of the present invention. [Fig. 8] A locking member for the attachment portion of the fabric material according to the second embodiment of the present invention, where (a) is a side view and (b) is a rear view.

Modes for Carrying Out the Invention

[0013] Hereinafter, the fabric material according to the embodiment of the present invention will be described with reference to the drawings.

[0014] The fabric material (4) according to the first embodiment of the present invention is shown in FIGS. 1 to 5. The temporary scaffold (1) has a plurality of required columns (2) standing at intervals in the left - right direction in a row (in FIG. 1, only 3 columns (2) are shown). On each side part of the front, rear, left, and right on the surface of each column (2), a plurality of hollow socket parts (21) opening vertically are provided at predetermined intervals in the vertical direction. In each column (2), the front - rear and left - right socket parts (21) are arranged such that the front - rear socket parts (21) are provided at the same height position, the left - right socket parts (21) are provided at the same height position, and the upper ends of the left - right socket parts (21) are at the same height position as the lower ends of the front - rear socket parts (21).

[0015] The socket part (21) is formed by joining a U - shaped socket fitting to the surface of each column (2) as viewed from the plane. The fabric material (4) is installed between each column (2) via the socket parts (21) of two adjacent columns (2) on the left and right. Note that the fabric material (4) according to the present invention is not limited to the temporary scaffold (1) having the above structure, and can also be installed on other temporary scaffolds, for example, those with different types and arrangements of socket parts. Specifically, for example, in a temporary scaffold where a plurality of plates having vertical through - holes into which locking parts can be inserted are provided at four positions on the front, rear, left, and right of a substantially donut - shaped plate on each column (each part on the front, rear, left, and right having the vertical through - holes in the plate corresponds to each socket part (21)) and are installed at predetermined intervals in the vertical direction, the fabric material of the present invention can also be installed.

[0016] Also, the fabric material (4) according to the present invention is not limited to the temporary scaffold (1) having the above structure, and can also be installed on a temporary scaffold where a plurality of columns are arranged in a plurality of rows in the front - rear direction and at intervals in the left - right direction for each row, etc.

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

[0018] In this embodiment, the cloth material (4) is installed between the respective support columns (2) by attaching the attachment portion (6) to the socket portion (21) at the rear side portion of each support column (2). However, the attachment portion (6) may be attached to the socket portion (21) at the front side portion of each support column (2), the socket portion (21) at the front side portion of the left support column (2), and the socket portion (21) at the rear side portion of the right support column (2), or the socket portion (21) at the rear side portion of the left support column (2) and the socket portion (21) at the front side portion of the right support column (2) to be installed between the respective support columns (2). Alternatively, when the distance between the respective support columns (2) is adjustable, or when the cloth material main body (5) is formed of a telescopic pipe material or the like, it is also possible to install the cloth material (4) between the respective support columns (2) by attaching the attachment portion (6) to the socket portions (21) at the left and right side portions of each support column (2). The cloth material (4) can be appropriately installed according to the configuration of the temporary scaffold (1) that varies depending on the shape and size of the installation space.

[0019] Next, the attachment portion (6) will be described. In the following, the attachment portion (6) formed at the right end portion of the cloth material (4) will be described as an example, but the attachment portion (6) formed at the left end portion of the cloth material (4) shall have a configuration symmetric to the left and right with the attachment portion (6) formed at the right end portion of the cloth material (4).

[0020] The attachment portion (6) has a U-shape that can enclose the socket portion (21) from above and below, and attachment holes (71) that communicate with the socket portion (21) when the socket portion (21) is enclosed from above and below are formed in a penetrating manner in the vertical direction at the upper and lower portions thereof. The attachment portion (6) includes an attachment portion main body (7) and a locking member (8) that is inserted into the attachment holes (71) and the socket portion (21) to prevent the attachment portion (6) from coming off the socket portion (21).

[0021] The attachment part main body (7) is arranged in a facing manner so as to sandwich the right end part of the cloth material main body (5) from the front and rear, and includes front and rear walls (72, 73) of the same shape and the same size having a U-shape when viewed from the front-rear direction, and a side wall (74) connecting the right ends of the front and rear walls (72, 73). The front and rear walls (72, 73) include opposing side parts (77) extending in the vertical direction so that the attachment part main body (7) faces the left surface of the socket part in a state of enclosing the socket part (21), and upper and lower side parts (78) extending rightward from the upper and lower ends of the opposing side parts (77) and extending in the left-right direction so that the attachment part main body (7) faces the upper and lower surfaces of the socket part in a state of enclosing the socket part (21). That is, an opening is formed in the rightward direction by the space defined by the opposing side parts (77) and the upper and lower side parts (78), and the attachment part main body (7) is configured to have a U-shape when viewed from the front-rear direction. With this configuration, at the time of installation, the opposing side parts (77) of the front and rear walls (72, 73) are arranged facing the left surface of the socket part, and the upper and lower side parts (78) are arranged facing the upper and lower surfaces of the socket part, and the attachment part main body (7) can enclose the socket part (21) in a sandwiching manner from the vertical direction. Note that the side wall (74) is not formed between the opposing side parts (77) of the front and rear walls (72, 73).

[0022] In this embodiment, the attachment part main body (7) is made of a steel rectangular plate with rounded corners. After the central part is cut out in a rectangular shape, it is bent into a U-shape as viewed from the plane. The left and right edges of the cut-out rectangle constitute the opposing side parts (77), and the upper and lower edges constitute the upper and lower side parts (78). Then, by welding the inner surface of the left end of the front and rear walls (72, 73) to the right end of the fabric main body (5), the attachment part main body (7) is joined to the fabric main body (5). The attachment hole (71) is formed by a space surrounded by the front and rear walls (72, 73), the side wall (74), and the tip of the fabric main body (5). Further, a crushed part is formed at the tip of the fabric main body (5) by being crushed in the front-rear direction. By forming the crushed part, a plane facing in the front-rear direction is formed at the tip of the fabric main body (5), the joint surface with the inner surfaces of the front and rear walls (72, 73) of the attachment part main body (7) is increased, and the durability of the fabric (4) is improved. Furthermore, by forming the crushed part, the front-rear length of the tip of the fabric main body (5) is reduced, interference with other scaffold component members using the socket part (21) in the vicinity of the socket part (21) where the attachment part (6) is attached is suppressed, and the degree of freedom in the construction of the scaffold is improved. Note that the attachment part main body (7) may be integrally formed with the fabric main body (5) by processing the end part of the fabric main body (5) into a U-shape as viewed from the back and forming the attachment hole (71).

[0023] Furthermore, when two or more fabric members (4) are arranged in series, that is, when two or more fabric members (4) are arranged continuously in the left - right direction, the attachment portions (6) formed at the opposing end portions of two adjacent fabric members (4) on the left and right are configured to be 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 - hand ends of the front and rear walls (72, 73) is configured to be equal to or less than half of the left - right length of the socket portion (21). With such a configuration, as shown in FIG. 2, when the attachment portion main body (7) is arranged so as to sandwich and enclose the socket portion (21) from above and below in order to attach the attachment portion (6) to the socket portion (21), the attachment portion (6) of the right - hand fabric member (4) and the attachment portion (6) of the left - hand fabric member (4) are attached to one socket portion (21) in a state of facing each other in the left - right direction. Also, not limited to the case where the fabric members (4) are arranged continuously in the left - right direction, for example, it is preferable that the attachment portion main body (7) is configured such that one of the two fabric members (4) shown in FIG. 2(a) can be installed rearward so as to be perpendicular to the other fabric member (4).

[0024] As shown in FIGS. 3 and 4, the locking member (8) is formed of a substantially vertically long plate-like body and is disposed in the attachment portion main body (7) so as to be movable up and down. The locking member (8) is formed with a protruding side head portion (81) that protrudes outward in the horizontal direction (leftward in this embodiment) from the upper end portion thereof. The attachment portion main body (7) includes a locking member holding bar (75) that is inserted into a hole formed through in the front-rear direction in the upper portion of the attachment portion main body (7) and is arranged to be held between the inner surfaces of the front and rear walls (72, 73) of the attachment portion main body (7). When the locking member (8) is moved downward, the lower end of the protruding side head portion (81) abuts against the locking member holding bar (75), preventing further downward movement of the locking member (8) and functioning as a locking member dropout prevention portion (81) that prevents the locking member (8) from dropping out of the attachment portion main body (7), substantially defining the lower limit of the vertical movement stroke of the locking member (8). Note that the locking member dropout prevention portion (81) is not limited to the above configuration and may be formed to protrude outward in any one direction, or a plurality of directions, such as the front, rear, left, or right, so as to engage with the upper end opening edge portion of the attachment portion main body (7). Further, the locking member dropout prevention portion (81) may be constituted by a separate member attached to the upper end portion of the locking member (8), but if it is constituted by the protruding side head portion (81) integrally formed by bulging the upper end portion of the locking member (8) as in this embodiment, it is easy to manufacture the locking member (8) and is also 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 member that is held between the upper sides of the inner surfaces of the front and rear walls (72, 73) of the attachment portion main body (7) and is disposed inside the attachment hole (71).

[0025] At the lower end of the locking member (8), a protruding tip portion (82) protruding outward in the horizontal direction (in this embodiment, outward in the front-rear direction) is provided. At the upper end portions on the inner surfaces of the front and rear walls (72, 73), retaining convex portions (76) protruding so as to face each other are formed. When the locking member (8) is moved upward, the protruding tip portion (82) abuts against the lower end of the retaining convex portion (76), preventing further upward movement of the locking member (8) and functioning as a locking member escape prevention portion (82) that prevents the locking member (8) from escaping from the attachment portion main body (7), substantially defining the upper limit of the vertical movement stroke of the locking member (8). In this embodiment, the locking member escape prevention portion (82) is constituted by, for example, the head of a screw fitted into a screw hole formed in a penetrating manner in the front-rear direction at the lower end of the locking member (8) and the tip portion 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 convex portion (76) are configured so as not to interfere with the vertical movement of the locking member (8) and to reliably prevent the locking member (8) from escaping from the attachment portion main body (7).

[0026] At the lower part of the left side surface of the locking member (8), an arcuate recess (83) is formed. After moving the locking member (8) upward and reaching the upper limit of the vertical movement stroke of the locking member (8) where the protruding portion (82) abuts against the lower end of the anti - detachment convex portion (76), when the locking member (8) is tilted leftward, the locking member holding bar (75) fits into the arcuate recess (83). By the fitting of the locking member holding bar (75) into the arcuate recess (83) and the abutment of the protruding portion (82) and the lower end of the anti - detachment convex portion (76), the locking member (8) is held in a tilted state along the direction of the fabric material body (5). With such a configuration, since the locking member (8) can be held in a state of being removed from the socket portion (21), when attaching the attachment portion (6) to the socket portion (21) or removing it from the socket portion (21), the user can perform this operation with one hand, etc., and the workability is improved. Also, in this state, it is preferable that the lower end portion of the locking member (8) is configured to abut against the inner surface of the side wall (74), whereby the locking member (8) is surely held in a tilted state along the direction of the fabric material body (5).

[0027] The locking member holding bar (75) and the protruding portion (locking member escape prevention portion) (82) are preferably circular in cross section. With such a configuration, it becomes easier to tilt the locking member (8), and the locking member holding bar (75) is securely held in a state of being fitted into the arc-shaped depression (83). Further, when the locking member (8) is inserted into the mounting hole (71) and moved downward until it reaches the lower limit of the vertical movement stroke, it is preferably configured such that the portion where the protruding portion (82) is formed at the lower end portion of the locking member (8) protrudes downward from the lower edge of the mounting portion main body (7). Furthermore, when an external force that tilts the locking member (8) to the left acts during the middle of the vertical movement 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 portion main body (7), thereby preventing the tip of the locking member (8) from protruding laterally from the mounting portion main body (7). With such a configuration, there is no risk that the locking member (8) protruding laterally during the conveyance of the cloth material (4) will come into contact with other scaffold components and be damaged. Further, it is preferable that a hook hole (84) extending in a penetrating manner in the front-rear direction is formed in the upper portion of the locking member (8), more specifically, in a portion that protrudes upward from the upper end of the mounting portion main body (7) at the lower limit of the vertical movement stroke of the locking member (8). With such a configuration, a user's finger or a rod-shaped tool such as a bar can be inserted into the hook hole (84) to lift up the locking member (8), improving the workability when moving the locking member (8) upward.

[0028] The locking member (8) is disposed in the attachment part main body (7) so as to be vertically movable in the following steps. First, the locking member (8) with the locking member escape prevention part (screw) (82) removed is inserted into the attachment hole (71) from above the attachment part main body (7) and moved downward. When the protruding side head part (locking member dropout prevention part) (81) abuts against the locking member holding bar (75), that is, when the lower limit of the vertical movement stroke of the locking member (8) is reached, the lower end part of the locking member (8) including the screw hole protrudes downward from the lower end of the attachment part main body (7). In this state, the locking member escape prevention part (screw) (82) is attached to the locking member (8). As a result, the locking member dropout prevention part (81) and the locking member escape prevention part (82) function, and the locking member (8) is disposed in the attachment part main body (7) so as to be vertically movable with the upper limit and the lower limit of the vertical movement stroke of the locking member (8) defined.

[0029] Next, the process of attaching and detaching the attachment part (6) to and from the socket part (21) will be described. First, the locking member (8) is moved to the upper limit of the vertical movement stroke of the locking member (8) where the protruding part (82) abuts against the lower end of the anti-loosening convex part (76). The locking member (8) is tilted leftward so that the locking member holding bar (75) fits into the arc-shaped depression (83), and by the abutment of the protruding part (82) and the lower end of the anti-loosening convex part (76), the locking member (8) is held in a tilted state along the direction of the fabric body (5). Next, the fabric (4) is moved so that the attachment part (6) sandwiches and encloses the socket part (21) from above and below, and the socket part (21) and the attachment hole (71) are arranged to communicate. Then, the locking member (8) is tilted rightward to be substantially vertical, inserted into the socket part (21) and the attachment hole (71), and moved to the lower limit of the vertical movement stroke of the locking member (8) where the protruding side head part (81) abuts against the locking member holding bar (75). In this way, the attachment part (6) is attached to the socket part (21). Next, a user's finger or a rod-shaped tool such as a bar is inserted into the hook hole (84) at the upper part of the locking member (8), the locking member (8) is pried up, pulled out from the lower part of the attachment hole (71) and the socket part (21), and further moved upward to the upper limit of the vertical movement stroke of the locking member (8). Then, it is tilted leftward so as to be held in a state tilted along the direction of the fabric body (5). By moving the fabric (4) in this state, the attachment part (6) is removed from the socket part (21).

[0030] Furthermore, the attachment part (6) has opposite side parts (77) of the attachment part body (7) and Engaging member (8) The distance between them, when the socket part (21) is sandwiched and enclosed from above and below, the opposite side parts (77) and Engaging memberIt is configured to be larger than the thickness of the portion located between (in this embodiment, the left wall). With such a configuration, a lateral gap is formed between the locking member (8) and the inner surface of the socket portion (21) in a state where the attachment portion main body (7) is in contact with the socket portion (21) from the left and right directions. Specifically, when the attachment portion (6) is attached to the socket portion (21), it is preferable that a gap of a predetermined size is formed between the left and right inner surfaces of the locking member (8) in the locking member (8) and the socket portion (21) in a state where the opposing side portions (77) of the attachment portion main body (7) are in contact with the left and right outer surfaces of the socket portion (21). As in the above configuration, a gap is formed between the opposing side portions (77) and Engaging member (8) through which the socket portion (21) moves relatively in the left - right direction. Even if there are manufacturing errors or installation errors in the support columns (2) or the 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 the respective support columns (2).

[0031] Also, due to the above - described configuration, and the distance between the opposing side portions (77) and the tip portions (in this embodiment, the right - end portions) of the front and rear walls (72, 73) being less than or equal to half of the left - right length of the socket portion (21), when two or more cloth materials (4) are arranged in series, that is, when two attachment portions (6) are attached to the same socket portion (21) in a face - to - face manner, the two attachment portions (6) attached to the same socket portion (21) can move relative to each other from a state of being in contact to a state of being separated in the left - right direction. Even if there are manufacturing errors or installation errors in the support columns (2) or the socket portion (21), or manufacturing errors in the cloth material (4), these errors can be absorbed, and the two attachment portions (6) can be reliably attached to the same socket portion (21) in a face - to - face manner, and the cloth materials (4) can be arranged in series.

[0032] In FIG. 5, a plurality of required support columns (2) are set up at intervals in the left - right direction in a row, and a temporary scaffold (11) is shown in which a front handrail (9) and a cloth material (4) are installed between the respective support columns (2) (in FIG. 5, only three support columns (2) are shown).

[0033] The front handrail (9) includes a horizontal handrail body (91) extending in the left - right direction formed of, for example, a steel pipe with a circular cross - section, etc., and upper ends that are rotatably connected around a rotation center axis extending in the front - rear direction by connecting pins (93) with a circular cross - section extending in the front - rear direction at the left and right ends of the handrail body (91). Also, at the lower part, there are two engaging members (92) having insertion portions (94) to be inserted into socket portions (21) provided at a predetermined height position (the uppermost position in FIG. 5) on the side portions of the two columns (2) facing each other left and right. One end of each of the two engaging members (92) is rotatably connected around the rotation center axis extending in the front - rear direction at a portion between the connecting portion to the handrail body (91) and the insertion portion (94) in the middle of the length of each of the left and right engaging members (92), and the other end is detachably attached to a predetermined height position below the socket portion (21) into which the insertion portion (94) of the two columns (2) is inserted, and two braces (95) are obliquely installed so as to cross each other between the two columns (2). At the other end of each brace (95), there is provided a connecting portion (96) that is detachably attached to a socket portion (21) below (the lowermost position in FIG. 5) the socket portion (21) into which the insertion portion (94) of the two columns (2) is inserted. The connecting portion (96) has a U - shaped cross - section that opens outward in the left - right direction when viewed from the back. Note that the connecting portion (96) is not limited to the above - described configuration, and may be, for example, a clamp or the like.

[0034] Next, the fabric material (104) according to the second embodiment of the present invention will be described with reference to FIGS. 6 to 8. In the following, attachment portions that are different in configuration from the fabric material (4) according to the first embodiment will be described in detail, but for the configurations for which the description is omitted, they are the same as those of the fabric material (4) according to the first embodiment. Also, in the following, the attachment portion (106) formed at the right end of the fabric material (104) will be described as an example, but the attachment portion (106) formed at the left end of the fabric material (104) has a configuration that is symmetric with the attachment portion (106) formed at the right end of the fabric material (104).

[0035] The attachment portion (106) has a U-shape that can enclose the socket portion (21) from above and below, and attachment holes (171) that communicate with the socket portion (21) when the socket portion (21) is enclosed while being sandwiched from above and below are formed to penetrate vertically in the upper and lower portions thereof. The attachment portion (106) includes an attachment portion main body (107) and a locking member (108). The attachment portion main body (107) is inserted into the attachment holes (171) and the socket portion (21) to prevent the attachment portion (106) from coming off the socket portion (21).

[0036] The attachment portion main body (107) includes U-shaped front and rear walls (172, 173) arranged in parallel so as to sandwich the right end portion of the cloth material main body (5) from the front and rear, and a side wall (174) connecting the right ends of the front and rear walls (172, 173). In the attachment portion main body (107), the side wall (174) is not formed at the U-shaped opening of the front and rear walls (172, 173), that is, at the vertical center portion of the right edge of the front and rear walls (172, 173). With this configuration, during installation, the vertical center portion of the right edge of the front and rear walls (172, 173) is arranged to face the left surface of the socket portion (21), and the upper and lower tips of the front and rear walls (172, 173) are arranged to face the upper and lower surfaces of the socket portion (21), so that the attachment portion main body (107) can enclose the socket portion (21) in a sandwiching manner from above and below into the U-shaped opening.

[0037] When the attachment part main body (107) attaches the attachment part (106) to the socket part (21), the rear wall (173) is configured to be arranged on the rear side as viewed from the plane relative to the rear edge part of the socket part (21). At the lower edge of the upper right end parts of the front and rear walls (172, 173), front and rear side hanging piece parts (178) extending downward are formed. Further, at the lower edge of the upper side wall (174), a right side hanging piece part (179) extending downward is formed. When the attachment part main body (107) is arranged to enclose the socket part (21) in the U-shaped opening of the front and rear walls (172, 173), the front side hanging piece part (178) is arranged inside the socket part (21), and the rear side hanging piece part (178) is configured to be arranged facing the rear surface of the socket part (21). The right side hanging piece part (179) is configured to be arranged inside the socket part (21) when the attachment part main body (107) is arranged to enclose the socket part (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 part (21) and the right side hanging piece part (179). With this configuration, when the attachment part main body (107) is arranged such that the socket part (21) is enclosed in the U-shaped opening of the front and rear walls (172, 173), the rear side of the socket part (21) is arranged in a sandwiched manner between the rear side hanging piece part (178) and the right side hanging piece part (179). Further, when the cloth material (104) moves leftward, the front side hanging piece part (178) abuts against the inner surface on the left side of the socket part (21) to restrict further leftward movement of the cloth material (104).Thus, for example, in order to attach the attachment part (6) to the socket part (21), the attachment part main body (7) is arranged such that the socket part (21) is enclosed in the U-shaped opening of the front and rear walls (172, 173). When the locking member (108) is operated, even if the user temporarily releases their hand from the fabric main body (5) or the attachment part main body (107), the attachment part main body (107) is held in the arrangement where the socket part (21) is enclosed in the U-shaped opening of the front and rear walls (172, 173), and the insertion state of the attachment hole (171) and the socket part (21) is also maintained. The front and rear hanging piece parts (178) and the right hanging piece part (179) function as a temporary placement locking part (177) for temporarily placing the attachment part (106) on the socket part (21) before inserting the locking member (108) into the socket part (21). The temporary placement locking part (177) is not limited to the above configuration, and may be formed in a portion of the attachment part main body (107) arranged above the socket part (21), and may be constituted by at least two hanging piece parts arranged such that at least one engages with the inner surface of the socket part (21) and at least one engages with the outer surface of the socket part (21). With such a configuration, even if the user temporarily releases their hand in the state where the attachment part (6) is placed on the socket part (21), the state where the attachment part main body (107) is placed on the socket part (21) is maintained, and operations such as operating the locking member (108) can be performed safely, improving safety and workability. It should be noted that the front and rear hanging piece parts (178) and the right hanging piece part (179) (temporary placement locking part (177)) can also be applied to the fabric (4) according to the first embodiment.

[0038] As shown in FIGS. 7 and 8, the locking member (108) is formed of a substantially vertically long plate-like body and is disposed within the attachment portion main body (107) so as to be vertically movable. The locking member (108) has a protruding side head portion (181) formed so as to protrude horizontally outward (in the leftward outer side in this embodiment) from its upper end portion. The attachment portion main body (107) includes a locking member holding bar (175) spanned over the upper end of the attachment portion main body (107). When the locking member (108) is moved downward, the lower end of the protruding side head portion (181) abuts against the locking member holding bar (175), preventing further downward movement of the locking member (108) and functioning as a locking member detachment prevention portion (181) for preventing the locking member (108) from detaching from the attachment portion main body (107). Note that the locking member detachment prevention portion (181) is not limited to the above configuration, and may be formed so as to protrude outward in any one direction, or a plurality of directions, such as the front, rear, left, or right direction, so as to engage with the upper end opening edge portion of the attachment portion main body (7). Further, the locking member detachment prevention portion (181) may be configured by a separate member attached to the upper end portion of the locking member (108), but if it is configured by the protruding side head portion (181) integrally formed by bulging the upper end portion of the locking member (108) as in this embodiment, the manufacturing of the locking member (108) is easy and it is also advantageous in terms of load-bearing strength. Note that the locking member holding bar (175) is not limited to the above, and may be fastened between the upper sides of the inner surfaces of the front and rear walls (172, 173) of the attachment portion main body (107).

[0039] At the lower end of the locking member (108), a protruding tip portion (182) protruding horizontally outward (leftward in this embodiment) is provided. When the locking member (108) is moved upward, the protruding tip portion (182) abuts against the locking member holding bar (175), preventing further upward movement of the locking member (108) and functioning as a locking member escape prevention portion (182) that prevents the locking member (108) from escaping from the attachment portion main body (107), substantially defining the upper limit of the vertical movement stroke of the locking member (108). In this embodiment, the locking member escape prevention portion (182) is constituted by, for example, the head of a screw that is fitted into a hole formed in the left surface of the lower end portion 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 to not interfere with the vertical movement of the locking member (108) and to surely prevent the locking member (108) from escaping from the attachment portion main body (107).

[0040] The locking member (108) has a tapered shape in which its front-to-back length decreases from the upper end to the lower end. The front-to-back length on the upper end side is configured to be longer than the front-to-back length of the inner surface of the socket portion (21), and the front-to-back length on the lower end side is configured to be shorter than the front-to-back 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 and forward at the same angle as the inclination angle of the rear inner surface of the socket portion (21). With such a configuration, when the attachment portion (106) is attached to the socket portion (21) and the locking member (108) is moved downward within the socket portion (21), the front surface of the locking member (108) presses against the inner surface of the rear wall (173) of the attachment portion main body (107) and / or the outer surface of the support column (2) or the front inner surface of the socket portion (21), and the rear surface of the locking member (108) presses against the rear inner surface of the socket portion (21). Thus, the attachment portion main body (107) and the locking member (108) are fixed to the socket portion (21). That is, the locking member (108) functions as a wedge member, and the attachment portion (106) is securely attached to the socket portion (21). Also, similar to the cloth material (4) according to the first embodiment, even when the attachment portion main body (107) is configured such that a gap is formed between the inner surface of the side wall (174) and the left inner surface of the socket portion (21) during attachment to the socket portion (21) so that the locking member (108) can move in the left-right direction, the locking member (108) functions as a wedge member, and the attachment portion main body (107) and the locking member (108) are securely fixed to the socket portion (21), thereby preventing rattling of the cloth material (104). Furthermore, it is preferable that the attachment portion main body (107) and the locking member (108) are configured to be front-to-back symmetric when viewed from the left and right. With such a configuration, the direction when installing the cloth material (104) is not restricted, and workability is improved.

[0041] Since the front-rear length of the lower end side of the locking member (108) is configured to be shorter than the front-rear length of the inner surface of the socket portion (21), when the locking member (108) is moved upward, if the locking member escape prevention portion (182) is tilted backward in a state of being 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 state backward. With such a configuration, since the locking member (108) can be held in a state of being removed from the socket portion (21), when attaching the attachment portion (106) to the socket portion (121) or removing it from the socket portion (121), the user can perform this operation with one hand, etc., and the workability is improved. Also, in this state, it is preferable that the lower end portion of the locking member (108) is configured to contact the inner surface of the side wall (74), whereby the locking member (8) is surely held in a state of being tilted in the direction along the fabric body (5). The locking member holding bar (175) and the protruding portion (locking member escape prevention portion) (182) are preferably circular in cross section. With such a configuration, it becomes easier to tilt the locking member (108). Further, the locking member (108) is preferably configured such that when the locking member (108) is inserted into the attachment hole (171), driven downward, and made to function as a wedge member and fixed to the socket portion (21) together with the attachment portion main body (107), the lower end of the locking member (108) protrudes downward from the lower edge of the attachment portion main body (107). Furthermore, more specifically, on the upper portion of the locking member (108), in a state where the locking member (108) is fixed to the socket portion (21) together with the attachment portion main body (107), it is preferable that a hook hole (184) extending in a penetrating manner in the front-rear direction is formed in a portion protruding upward from the upper end of the attachment portion main body (107). With such a configuration, the user can insert a finger or a rod-shaped tool such as a bar into the hook hole (184) to lift up the locking member (8), and the workability when moving the locking member (108) upward is improved.

[0042] The locking member (108) is disposed in the attachment portion main body (107) so as to be vertically movable in the following steps. First, the locking member (108) with the locking member escape prevention portion (screw) (182) removed is inserted into the attachment hole (171) from above the attachment portion main body (107) and moved downward. When the protruding side head portion (locking member dropout prevention portion) (181) reaches the position where it abuts against the locking member holding bar (175), the lower end portion of the locking member (108) including the screw hole protrudes below the lower end of the attachment portion main body (107). In this state, the locking member escape prevention portion (screw) (182) is attached to the locking member (108). As a result, the locking member dropout prevention portion (181) and the locking member escape prevention portion (182) function, and the locking member (108) is disposed in the attachment portion main body (107) so as to be vertically movable with the upper and lower limits of the vertical movement stroke of the locking member (108) defined.

[0043] Next, the process of attaching and detaching the attachment part (106) to and from the socket part (21) will be described. First, the locking member (108) is moved to the upper limit of the vertical movement stroke of the locking member (108) where the protruding part (182) abuts against the locking member holding bar (175), and the locking member (8) is tilted backward so as to be held in a state of abutting against the upper edge of the rear wall (173). Next, the cloth material (104) is moved so that the attachment part (106) sandwiches and encloses the socket part (21) from the vertical direction, and the socket part (21) and the attachment hole (171) communicate with each other. Then, the locking member (108) is tilted forward to be substantially vertical, inserted into the socket part (21) and the attachment hole (171), and the upper end is struck with a tool or the like and driven in from above, moved downward, and the front surface of the locking member (108) presses the inner surface of the rear wall (173) of the attachment part main body (107) and / or the outer surface of the support column (2) or the front inner surface of the socket part (21), and the rear surface of the locking member (108) presses the rear inner surface of the socket part (21), that is, it is pushed in to a position where the locking member (108) functions as a wedge member. Note that the attachment part (106) can be temporarily placed on the socket part (21) by the temporary locking part () constituted by the rear-side hanging piece part (178) and the right-side hanging piece part (179), so that the user can perform the above driving operation with both hands. In this way, the attachment part (106) is fixed to the socket part (21). Next, the lower end of the locking member (108) is struck with a tool or the like and lifted from below, or a finger of the user or a rod-shaped tool such as a bar is inserted into the hook hole (184) at the upper part of the locking member (108), the locking member (108) is pried up, pulled out from the lower part of the attachment hole (171) and the socket part (21), and further moved upward to the upper limit of the vertical movement stroke of the locking member (108). Then, it is tilted backward so as to be held in a state of being tilted backward. By moving the cloth material (104) in this state, the attachment part (106) is removed from the socket part (21).

[0044] According to the fabric material (4) (104) of the present invention, with a simple structure, the fabric material (4) (104) can be reliably installed at a desired height position without interfering with other scaffold component members such as the prior handrail (9).

Industrial Applicability

[0045] This invention is suitably used as a fabric material installed between columns in a temporary scaffold assembled at a construction site or the like.

Explanation of Signs

[0046] (1) Temporary scaffold (2) Column (21) Socket part (4)(104) Fabric material (5) Fabric material body (6)(106) Attachment part (7)(107) Attachment part body (71)(171) Attachment hole (72)(172) Front wall (73)(173) Rear wall (74)(174) Side wall (75)(175) Locking member holding bar (76) Anti - detachment convex part (77) Opposite side part (78) Upper and lower side parts (177) Temporary locking part (178) Front - rear side hanging piece part (179) Right - hand side hanging piece part (8)(108) Locking member (81)(181) Locking member anti - detachment part (projecting side head part) (82)(182) Locking member anti - escape part (projecting part) (83) Arc - shaped depression (84) Hook hole (9) Prior handrail

Claims

1. A temporary scaffolding is provided with a plurality of supports erected at intervals in the left-right direction, and a plurality of hollow sockets opening upward and downward are provided at predetermined intervals in the up-down direction on the front, rear, left, and right sides of each support, the fabric material being installed between two adjacent supports on the left and right, A horizontal cloth body extending in the left and right direction, and mounting portions formed on both left and right ends of the fabric material body and attached to the socket portions on the front and rear sides of two adjacent posts, the mounting portion has a U-shape that can sandwich and contain the socket portion from above and below, and a mounting portion main body having mounting holes formed in the upper and lower parts thereof 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 mounting 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 locking member is greater than the thickness of the portion of the socket portion located between the opposing side portions and the locking member 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