JP2020041368A - Baseboard for scaffold - Google Patents

Abstract

To provide a baseboard which can be used even a distance between pillars is different.SOLUTION: A baseboard for scaffold includes a flat plate-like baseboard body 10, and a pair of hooks 20 which are provided on each of both ends in a lateral direction of the baseboard body and are hooked on pillars P, and the structure of the baseboard 1 erecting the baseboard body between the adjacent pillars is such a structure that the baseboard body includes a first panel 11a and a second panel 11b that relatively slides in a lateral direction to the first panel, the pair of hooks have a hooking part 22 which exhibits a curve shape opened inward in the lateral direction and is hooked on the pillars from the outer part, and are drawn outward in the lateral direction from the baseboard body against energization of the spring 30.SELECTED DRAWING: Figure 2

Description

  TECHNICAL FIELD The present invention relates to a skirting board to be erected along the edge of a tread on a scaffold.

  BACKGROUND ART Scaffolds that are temporarily installed in buildings such as houses and buildings, and construction sites of civil engineering structures such as bridges and tunnels are generally spanned between a support installed from an installation surface and an adjacent support, or It is mainly composed of a horizontal member supported in a cantilever manner on one support, and a tread spanned between two parallel horizontal members at the same height.

  In addition, the scaffolding is designed to prevent work tools and architectural members from falling off the tread, and to allow the worker to work with a sense of security without fear of the worker's feet coming off the tread. A skirting board may be erected along the margin. A general skirting board includes a flat skirting board main body and hooks attached to both ends of the skirting board main body. By locking the hooks to the adjacent posts, the posture in which the skirting board main body is at a right angle to the tread plate can be maintained.

  However, since the distance between struts on a scaffold is not constant, conventionally, it has been necessary to prepare a plurality of types of baseboards corresponding to the distance between struts used for a general scaffold. For this reason, the number of components of the scaffolding member increases, and there is a problem that management becomes complicated and cost increases.

  Therefore, in view of the above-described circumstances, the present invention provides a skirting board to be erected along the edge of the tread plate between adjacent struts, and a skirting board that can be used even when the distance between the struts is different. It is an issue.

In order to solve the above-described problems, a scaffold for scaffolding according to the present invention (hereinafter, may be simply referred to as “baseboard”) is
A skirting board body having a flat plate shape, and a pair of hooks provided at both ends in the lateral direction of the skirting board body and respectively hooked on struts, wherein the skirting board is provided between adjacent struts. A skirting board for erecting the main body,
The skirting board main body includes a first panel and a second panel that slides in the lateral direction relative to the first panel,
The pair of hooks each have a hooked portion that has a curved shape that is opened inward in the horizontal direction and is hooked to the support column from the outside, and resists bias from a spring, and the hook from the baseboard main body. Drawn outward in the lateral direction. "

  The "lateral direction" referred to here is the lateral direction in the use state in which the skirting board is erected between the adjacent columns, and the "outside" and "inside" are the outward directions in the lateral direction in the same use state. And inward.

  In this configuration, by sliding the first panel relative to the second panel, the length of the baseboard body in the lateral direction can be changed. Therefore, even in the case where the distance between the adjacent columns is different, a skirting board having a single configuration can be attached.

  Further, each of the pair of hooks has a hook portion having a curved shape that is opened inward in the horizontal direction, and the hook portion is hooked on the column from the outside, so that the baseboard is attached to the column. In such a configuration, each of the pair of hooks is pulled out from the baseboard body against the bias of the spring, and the hook in the state where the hook portion is hooked on the support is always inward. Is biased to be pulled toward. By such a pulling force, the state where the skirting board is attached between the adjacent columns is stabilized, and the first panel slides relative to the second panel, so that the skirting board in the lateral direction is The state where the length becomes the length corresponding to the distance between the supports is stabilized.

The scaffold for scaffolding according to the present invention, in addition to the above configuration,
"They each have a curved shape that opens outward in the lateral direction, and are provided at different heights from the hooks at each of the two end portions of the skirting board body, and abut against the adjacent columns from inside. Further comprising a pair of pressing arms for causing
In the pair of hooks, the hook portion extends from a straight rod-shaped shaft portion whose axis is aligned in the lateral direction, and rotates around the axis.

  The skirting board of this configuration further includes a pair of pressing arms, and the pressing arms have a curved shape that is opened outward in the horizontal direction, so that the pressing arms come into contact with the columns from inside. . When such a pressing arm is provided, there is a possibility that the hooked portion of the hook hooked to the column from outside may interfere with the column. On the other hand, in the present configuration, the hook can be rotated around the axis of the straight rod-shaped shaft, so that the hook is rotated until the hook does not interfere with the support, and the hook extends outward from the support. The hook can be pulled out and hooked to the column from outside.

  Since the hook is always urged inward by the spring, the hook is hooked from the outside to the support, and the pressing portion is in contact with the support from the inside. The arm clamps the column so as to press each other. Thereby, the attachment state of the baseboard to the support becomes very firm.

  As described above, according to the present invention, there is provided a skirting board that is erected along the edge of a tread plate between adjacent columns, and can be used even when the distance between the columns is different. Can be.

FIG. 1A is a perspective view of a skirting board according to an embodiment of the present invention, and FIG. 1B is a front view of the same skirting board. 2A is a perspective view cut along the line XX, FIG. 2B is a cross-sectional view along the line XX in the YY range, and FIG. It is XX sectional drawing which shows the state which pulled out the hook outward in the same range. FIG. 3A is a cross-sectional view of a range corresponding to FIG. 2B in the skirting board of the modified example, and FIG. 3B is a state in which the hook is pulled out in the same range as FIG. 3A. FIG.

  Hereinafter, a scaffolding skirting board 1 according to a specific embodiment of the present invention will be described with reference to FIGS. 1 and 2. Here, the “horizontal direction” is a horizontal direction in a use state in which the skirting board 1 is erected between the adjacent columns P, and “up and down” is an up and down in the same use state. Further, “outside” and “outside” are the outside and outside in the lateral direction of the same use state, and “inside” and “inside” are the inside and inside in the lateral direction of the same use state. Further, the field of view from the tread side will be described as the “front” of the skirting board 1.

  The skirting board 1 mainly includes a skirting board main body 10, a pair of hooks 20, a pair of springs 30 for urging the hooks 20, and a pair of pressing arms 50. The baseboard body 10 includes a first panel 11a and a second panel 11b, each of which is in the shape of an elongated rectangular flat plate. By sliding the first panel 11a in the lateral direction relatively to the second panel 11b, the lateral length of the skirting board main body 10 can be changed.

  Specifically, the first panel 11a has a long hole 15 extending in the lateral direction, and the second panel 11b has a hole slightly larger in diameter than the outer diameter of the shaft of the bolt 17 having a head. (Not shown in the drawing). By moving the bolt 17 inserted through the hole and the elongated hole 15 along the elongated hole 15, the relative sliding of the first panel 11a with respect to the second panel 11b is guided, and the first panel 11a and the second panel 11a are guided. 11b and the total length in the lateral direction can be changed.

  Then, the first panel 11a and the second panel 11b are fastened to each other by the bolt 17 and the nut 18 screwed to the bolt 17 so that the first panel 11a and the second panel 11b are The two panels 11b can be integrated. As will be described in detail later, since a tensile force acts on both sides of the skirting board 1 attached to the adjacent pillar P, the total length in the lateral direction of the skirting board body 10 is adjacent. The length corresponding to the distance between the columns P is maintained, but by fastening with the bolt 17 and the nut 18, the first panel 11a and the second panel 11b are separated from each other in the front-rear direction or rattled. Is prevented.

  Each of the pair of hooks 20 includes a shaft portion 21 having a straight rod shape and a circular cross-section, and a hook portion 22 having a semicircular arc shape opened inward and forming a J-shape with the shaft portion 21. Become. The shaft portions 21 of the pair of hooks 20 are held at the upper ends of the first panel 11a and the second panel 11b, respectively, and near the opposite ends of the baseboard body 10 in the lateral direction.

  Specifically, at the upper end of the first panel 11a and in the vicinity of the outer end opposite to the second panel 11b side, an outer projecting piece 41 and an inner projecting piece each forming a pair of flat small pieces are provided. 42 are provided. The outer protruding piece 41 and the inner protruding piece 42 protrude from the first panel 11a at right angles to the front side, and are laterally separated from each other with the planes facing each other. An outer hole 41 h having a diameter larger than the outer diameter of the shaft portion 21 is formed through the outer protrusion 41, and an inner hole 42 h having a diameter larger than the outer diameter of the shaft 21 is formed in the inner protrusion 42. Are provided coaxially with the outer hole 41h. Then, one shaft portion 21 of the pair of hooks 20 passes through the outer hole portion 41h and the inner hole portion 42h in a state where the hook portion 22 is located in a space outside the outer protrusion 41. In this state, the axis of the shaft portion 21 coincides with the lateral direction of the baseboard body 10.

  Similarly, an outer projecting piece 41 and an inner projecting piece 42 forming a pair are also provided at the upper end of the second panel 11b and near the outer end that is opposite to the first panel 11a side. An outer hole 41h and an inner hole 42h are similarly formed in the outer protrusion 41 and the inner protrusion 42, respectively, and the other shaft 21 of the pair of hooks 20 similarly connects these holes. It is inserted.

  In the present embodiment, the outer projecting piece 41 and the inner projecting piece 42 have their front side edges connected by a front plate 43, and their rear side edges connected by a back plate 44. Each lower end is connected by a bottom plate 45, and has a box shape as a whole. With such a box shape, the mechanical strength of the structure in which the hook 20 is held by the skirting board main body 10 via the outer protrusion 41 and the inner protrusion 42 is reinforced.

  The shaft portions 21 of the pair of hooks 20 are each formed with a groove 25 that is recessed in the circumferential direction at a portion located in a space between the outer protrusion 41 and the inner protrusion 42.

  Each of the pair of springs 30 is a compression coil spring, and has an inner diameter larger than the outer diameter of the shaft portion 21 and an outer diameter larger than the outer hole portion 41h and the inner hole portion 42h. The shaft portion 21 of the hook 20 has the spring 30 inserted in a space between the outer protrusion 41 and the inner protrusion 42. In this state, the inner end of the spring 30 is fitted in the groove 25 of the shaft portion 21, and the outer end of the spring 30 abuts the outer protruding piece 41 while the spring 30 is slightly compressed.

  Here, the spring 30 is held in a space between the outer protrusion 41 and the inner protrusion 42 in such a manner as to allow the hook 20 to rotate around the axis of the shaft 21. As such a mode, the inner end of the spring 30 is fixed to the groove 25 while the outer end is not fixed to the outer protrusion 41, or the outer end of the spring 30 is fixed to the outer protrusion. A mode in which the inner end is not fixed to the groove portion 25 while being fixed to the 41 can be adopted, and the spring 30 rotates around the axis of the shaft portion 21 integrally with the hook 20. Alternatively, a mode in which the inner end of the spring 30 is not fixed to the groove 25 and the outer end is not fixed to the outer protruding piece 41 can be adopted, and the hook 20 exerts a rotational force on the spring 30. Instead, it rotates around the axis of the shaft portion 21.

  Each of the pair of pressing arms 50 has a semicircular shape. One pressing arm 50 is fixed to the first panel 11a at a position below the hook 20 so as to protrude outward from the outer end of the first panel 11a opposite to the second panel 11b. Have been. The other pressing arm 50 is fixed to the second panel 11b at a position below the hook 20 so as to protrude outward from an outer end opposite to the first panel 11a. In each of the pressing arms 50, a semicircular arc is opened outward, and a surface surrounded by the semicircular arc is fixed in a direction orthogonal to a plane of the skirting board main body 10.

  The baseboard body 10 has a first lower surface portion 12a extending perpendicularly to the front side from the lower side of the first panel 11a and a second lower surface extending perpendicularly to the front side from the lower side of the second panel 11b. A portion 12b. The first lower surface portion 12a and the second lower surface portion 12b are for filling a gap between the tread plate and the baseboard body 10. The skirting board body 10 extends at right angles to the front side from the upper end side of the first panel 11a, and further extends downward at right angles to the first cover 13a and the upper end side of the second panel 11b. And a second cover 13b bent further downward.

  As the first panel 11a and the second panel 11b relatively slide, the first lower surface 12a and the second lower surface 12b relatively slide, and the first cover 13a and the second cover 13b relatively move. Slide to. Due to the presence of the first cover 13a and the second cover 13b, the space between the inner protruding piece 42 and the outer protruding piece 41, which is a space in which the spring 30 is housed at both ends in the lateral direction of the skirting board body 10, is provided. The space is covered.

  Next, a method of using the baseboard 1 having the above configuration on a scaffold will be described. The pillars P are cylinders or cylinders, and a large number of them are erected in the vertical direction from the installation surface on the scaffold. A horizontal member such as a handrail or a beam member is horizontally stretched between the adjacent columns P. Further, a tread plate is hung horizontally between two parallel horizontal members at the same height. The horizontal member on which the tread plate is bridged is a horizontal member bridged between adjacent columns P, or a horizontal member supported in a cantilever manner on the column P. When the skirting board 1 is attached to the wife side of the step board, the horizontal member on which the step board is bridged is a horizontal member bridged between the adjacent columns P. The distance between adjacent columns P may be different, and accordingly, there are a plurality of types of treads having different lengths and widths.

  The skirting board 1 is attached between the adjacent columns P such that the skirting board body 10 is at a right angle to the tread. At that time, the orientation of the baseboard 1 is such that the first lower surface portion 12a and the second lower surface portion 12b are continuous with the tread plate.

  Prior to attaching the baseboard 1 to the support P, first, the first panel 11a is relatively slid with respect to the second panel 11b, and the distance between the center axes of the pair of pressing arms 50 is set between the support P. Adjust according to the distance. At this time, if the bolt 17 inserted in the hole of the second panel 11b and the long hole 15 of the first panel 11a is moved along the long hole 15, the relative sliding of the first panel 11a with respect to the second panel 11b is achieved. Will be guided.

  The distance between the central axes of the pair of pressing arms 50 can be changed by the length of the long hole 15, and by adjusting the distance to the distance between the columns P, the pair of pressing arms 50 can be connected to the adjacent columns. P can be abutted from the inside. At this time, in order to prevent the hook portion 22 of the hook 20 from interfering with the column P, the hook 20 is so set that the surface of the hook portion 22 surrounded by the semicircular arc is parallel to the plane of the baseboard main body 10. Is rotated around the axis of the shaft portion 21. The first panel 11a and the second panel 11b are fastened by the bolts 17 and the nuts 18 in a state where the pressing arm 50 is in contact with the column P from inside.

  Then, the operation of hooking each of the pair of hooks 20 on the support pillar P is performed as follows. First, the hook 20 is pulled out from the baseboard body 10 outward. The spring 30 through which the shaft 21 of the hook 20 is inserted is a compression coil spring. The inner end of the spring 30 is fitted into the groove 25 of the shaft 21 and the outer end thereof is in contact with the outer protrusion 41. By pulling the hook 20 outward, the spring 30 is further compressed between the outer protruding piece 41 and the groove 25, and urges the hook 20 to be pulled inward. Against this bias, the hook 20 is pulled out until the open end of the hook portion 22 exceeds the support P. In a state where the hook 20 is pulled out to the maximum, the free end (inner end) of the shaft portion 21 does not come out of the inner hole portion 42h and is located in the space inside the inner protruding piece 42. The length of the shaft portion 21, the distance between the inner protruding piece 42 and the outer protruding piece 41, the length and strength of the spring 30, and the like are set.

  When the open end of the hook portion 22 exceeds the support P, the hook 20 is rotated around the axis of the shaft portion 21 as shown in FIG. It is perpendicular to the plane of the wooden body 10. Then, except for the force of pulling the hook 20 to pull it outward, the hook 20 is pulled back inward by the bias of the spring 30, and the hook portion 22 is hooked on the column P from the outside. . In this state, a force for pulling the hook 20 inward is always exerted by the spring 30, so that the hooking portion 22 is in contact with the column P so as to press from the outside. At the same time, the pressing arm 50 presses the column P from inside by the reaction force, so that the column P is firmly held between the hook portion 22 and the pressing arm 50. As a result, as shown in FIGS. 1A and 1B, the baseboard 1 is firmly attached between the adjacent columns P.

  As described above, according to the skirting board 1 of the present embodiment, the length of the skirting board body 10 in the lateral direction is changed by sliding the first panel 11a relative to the second panel 11b. Therefore, even when the distance between the adjacent columns P is different, the skirting board 1 having a single configuration can be attached. The skirting board 1 is attached to the support P by the hooks 22 of the pair of hooks 20 being hooked from the outside to the support P, respectively. Since it is urged to be pulled, the state in which the baseboard 1 is attached between the adjacent columns P is stabilized.

  In addition, the baseboard 1 is provided with a pair of pressing arms 50 that come into contact with each of the adjacent columns P from inside, and the biasing force of the spring 30 causes the hook portion 22 of the hook 20 and the pressing arm 50 to be in contact with each other. Since the struts P are held so as to press against each other, the state in which the baseboard 1 is attached between the adjacent struts P is more firm.

  The baseboard 1 is provided with a pair of pressing arms 50 for abutting each of the adjacent columns P from inside, so that the hooks 22 for hooking the columns P from outside interfere with the columns P. However, since the hook 20 can be rotated around the axis of the shaft portion 21, the hook 20 is rotated while the hook 20 is rotated until the hook portion 22 does not interfere with the column P. Can be withdrawn.

  As described above, the present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above embodiments, and various improvements can be made without departing from the gist of the present invention as described below. And design changes are possible.

  For example, in the above, the case where the spring 30 is a compression coil spring is illustrated, but as shown in FIGS. 3A and 3B, a spring 31 of a tension coil spring can be used instead. In this case, the inner end of the spring 31 is fixed to the inner protruding piece 42, and the outer end is fitted into the groove 25 of the hook 20 with the spring 31 being slightly pulled. At this time, the outer end of the spring 31 is not fixed to the groove 25. In such a structure, when the hook 20 is rotated around the axis of the shaft portion 21, the spring 31 also rotates integrally, so that the rotation of the hook 20 is allowed.

  The hook 20 is urged to always be pulled inward by the restoring force of the spring 31 that has been pulled and extended to return to the original position. This biasing direction is the same as in the above-described embodiment in which a compression coil spring is used as the spring 30. Therefore, except that the spring 31 is replaced with the spring 30, a skirting board having the same configuration as the above-described skirting board 1 can be used, and can be attached to the support P in a similar manner, and the same operation and effect are exhibited. You. In FIG. 3, the same components as those in the embodiment of FIGS.

  Further, in the above description, the case where the diameter of the semicircular arc of the hook portion 22 and the pressing arm 50 is set to the outer diameter of the support P is illustrated with reference to FIGS. However, as described above, the urging of the spring 30 (or the spring 31) firmly clamps the column P so that the hook portion 22 and the pressing arm 50 press against each other. Even if the diameter of the semicircle does not match the outer diameter of the support P, the state in which the baseboard 1 is attached to the support P is stable. That is, if the diameter of the semicircular arc of the hook portion 22 and the pressing arm 50 is larger than the outer diameter of the column P, the baseboard 1 can be attached without any problem even with columns P having different diameters.

DESCRIPTION OF SYMBOLS 1 Baseboard 10 Baseboard main body 11a First panel 11b Second panel 20 Hook 21 Shaft portion 22 Hook portions 30, 31 Spring 50 Pressing arm P Support

Claims (2)

A skirting board body having a flat plate shape, and a pair of hooks provided at both ends in the lateral direction of the skirting board body and respectively hooked on posts, wherein the skirting board body is provided between adjacent posts. A skirting board for erecting,
The skirting board main body includes a first panel and a second panel that slides in the lateral direction relative to the first panel,
The pair of hooks each have a hooked portion that has a curved shape that is opened inward in the horizontal direction and is hooked to the support column from the outside, and resists bias from a spring, and the hook from the baseboard main body. A scaffold for scaffolding, wherein the scaffold is drawn outward in a lateral direction. Each has a curved shape that is open outward in the lateral direction, and is provided at a different height from the hook at each of the two end portions of the skirting board body, and is brought into contact with each of the adjacent columns from inside. Further comprising a pair of pressing arms,
2. The pair of hooks, wherein the hooks extend from a straight rod-shaped shaft whose axes are aligned in the lateral direction, and rotate around the axis. 3. A skirting board for a scaffold described in.

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