JPH1162223A - Structure of scaffolding board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a space for lifting up and down of materials by turning scaffold boards. SOLUTION: A coupling piece 17 to be engaged by a coupling frame 24 on the scaffold side is rotatably attached to a scaffolding board 11. The coupling piece 17 is inserted into the coupling frame 24, and the scaffolding board 11 is rotatably held around the coupling piece 17. The base of an arm 20 is fixed by a clamp 23 to a stay 27 on the scaffold side, and its forefront is supported in the horizontal position by a fastener 25 so that the scaffolding board 11 is hindered from rotation. To rotate the scaffolding board 11, the clamp 23 is disengaged, and the arm 20 is fixed by the clamp 23 anew in the position where the scaffolding board 11 is raised.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold plate structure capable of securing a lifting space for raising and lowering construction materials and members by rotating the scaffold plate.

[0002]

2. Description of the Related Art Conventionally, in a construction site or the like, a scaffold for work has been constructed by assembling pipe materials or the like in a frame shape, and a scaffold plate has been attached to the work scaffold as a passage or a work place on the scaffold. As shown in FIG. 12, the scaffold plate 52 is
For example, the connecting pin 55 of the scaffold plate 52 is inserted into a connecting frame 54 formed in the horizontal frame 53. As a result, the scaffold 52 is horizontally fixed to the horizontal frame 53.

[0003]

[Problems to be Solved by the Invention] Thus, the scaffold plate 5
Since 2 is fixed horizontally to the horizontal frame 53, the work of raising and lowering construction materials and members has been performed from outside the scaffold plate 52 in the related art. Here, if there is an adjacent object immediately outside the scaffold plate 52, it is difficult to obtain a vacant lot and space for the above operation. Therefore, in this case, the scaffold plate 5
It was necessary to temporarily remove 2 and make a lift space for raising and lowering materials and the like. As described above, it is inconvenient to remove the scaffold plate 52 each time the lifting operation is performed. An object of the present invention is to solve such a problem, and an object of the present invention is to provide a scaffold plate structure that can provide a lifting space for raising and lowering materials and the like by rotating the scaffold plate.

[0004]

Means for Solving the Problems According to the invention of claim 1 for achieving the above object, a locking member rotatably locked to a locked member on a scaffold side is attached to a scaffold plate. While holding the scaffold plate rotatably around the locking member locked to the locked member, the base of the support member supporting the same scaffold plate is mounted on the scaffold side, and from the base. The scaffold plate is supported at the use position by the extended support arm, and the support member allows the scaffold plate to rotate when the scaffold plate is rotated from the use position to the storage position by rotating the scaffold plate. The gist is that they have done so. In such a configuration, the scaffold plate, which is rotatably held by locking the locking member to the locked member on the scaffold side, is supported at the use position by the support member whose base is also fixed to the scaffold side. When the scaffold is stored and used as a scaffold, the support member is allowed to rotate from the use position of the scaffold to the storage position.

In the invention of claim 2, in addition to the structure of the invention of claim 1, the use position supported by the support arm is a position for horizontally supporting the scaffold plate, and the storage position is a scaffold. The gist is that it is a position where the board is raised and supported. According to the third aspect of the present invention, a stopper for preventing rotation is interposed between the scaffold plate and the locking member, and the locking member is locked to the locked member on the scaffold side. The gist is that the rotation is prevented by the stopper and held at a predetermined position. In such a configuration, the scaffold plate is held at the predetermined position only by locking the locking member to the locked member on the scaffold side even if it is not supported by the support member at the first position.

[0006]

According to the first aspect of the present invention, the plate can be moved from the use position to the retreat position only by rotating the scaffold plate, and it is easy to provide a lift space at the scaffold plate position. In addition, the strength can be maintained because the support member is supported by the support member at the use position. According to the second aspect of the invention, in addition to the effect of the first aspect, the scaffold can be reliably supported at the horizontal position and the upright position. According to the third aspect of the invention, in addition to the effects of the first or second aspect, the stopper prevents the downward movement of the scaffold plate around the locking member, which is safe.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, specific embodiments of a scaffold plate structure according to the present invention will be described with reference to FIGS. The scaffold plate structure mainly includes a scaffold plate and arms that support the scaffold plate. In the following description, FIG.
7 are referred to as left and right. The left direction in FIGS. 5 and 6 is referred to as a front side, and the right direction is referred to as a rear side.

As shown in FIG. 1, the scaffold plate 11 is formed in a long rectangular shape by a pair of left and right first frame pieces 12 and a pair of front and rear second frame pieces 13. A net 14 is mounted on the upper surface of each of the frame pieces 12 and 13. A pair of reinforcing frame pieces 15 are disposed in parallel with the second frame piece 12 between the first frame pieces 12 on the back side of the same net 14. A pair of connecting pieces 17 are provided near the rear of the side surface 12a of both first frame pieces 12. The connecting piece 17 has a base end rotatably attached to the side surface 12a of each of the first frame pieces 12, and as a result, the connecting piece 17 and the scaffold plate 11 are relatively rotated. A stopper plate 18 is formed adjacent to the connecting piece 17. As shown in FIG. 1 to FIG. 3, the stopper plate 18 is
2 are arranged so as to be orthogonal to the extending direction.
A mounting hole 19 for attaching an arm 20 is formed near the front of the side surface of both first frame pieces 12. As shown in FIG. 8, the arm 20, which is a support member, includes an arm main body 21 in which both ends of a pipe member are flatly pressed and formed, a fastening portion 22, and a clamp 23. The fastening part 22 is an eyebolt 2
5 and a nut 26.

As shown in FIG. 9, the clamp 23 is divided into a first gripper 28 and a second gripper 29. The two grippers 28 and 29 are pivotally mounted so as to open and close with respect to a rotation center shaft 33. A curved surface 2 for gripping a pillar 27 of a scaffold having a circular cross section is provided on the inner peripheral surfaces of both grippers 28 and 29.
8a and 29a are formed. The first gripper 28 is attached to the base end of the arm 20 so as to be rotatable 360 degrees around an axis j perpendicular to the extending direction of the arm 20. At the base end of the first gripper 28, a tightening bolt 30 is provided.
Is rotatably mounted on a rotation shaft 34, and is rotatable around an axis k orthogonal to the axis j. An insertion groove 31 into which the tightening bolt 30 is inserted is formed at the tip of the second gripper 29. When the column 27 is gripped by such a clamp 23, both grippers 28,
29 is opened to surround the outer periphery of the column 27, the fastening bolt 30 is engaged with the insertion groove 31, and the holding nuts 28, 29 are fastened with the fixing nut 32 from the outside.

Next, the operation when the scaffold is mounted on the scaffold by the scaffold and the arm 20 and the like, and the operation for moving the scaffold from the use position as a scaffold to the retreat position will be described. First, the scaffold plate 11 is prepared and transported between the left and right columns 27 of the scaffold. Then, the scaffold plate 11 is raised as shown in FIG. At this time, since the distal end side of the connecting piece 17 is directed downward by its own weight, the left and right connecting pieces 17 are inserted into the connecting frames 24 formed on the outer periphery of the both columns 27, respectively.
Then, after the insertion is completed, the scaffold plate 11 is gradually lowered to the front side around the connecting piece 17. Then, as shown in FIG. 3, the stopper plate 18 of the scaffold plate 11 abuts on the connecting piece 17 and is prevented from rotating at the just horizontal position. As a result, the scaffold plate 11 is horizontal when the connecting piece 17 is inserted. Is held.

Next, the pair of arms 20 are connected to the right and left columns 27.
To each. First, the clamp 23 of the arm 20 is fixed to a position below the scaffold plate 11 of the left and right columns 27 (this position is determined by the length of the arm 20 or the position of the mounting hole 19). At this stage, the arm 20 hangs down by its own weight with the clamp 23 as a base as shown in FIG. And
As shown in FIG. 5, the distal end of the arm 20 is lifted, and an eyebolt 25 is inserted into the mounting hole 19 of the scaffold plate 11 together with the distal end of the arm body 21, and fastened with a nut 26.
As a result, the upward rotation of the scaffold plate 11 is restricted, and the scaffold plate 11 is supported by the arm 20 from below. That is, the scaffold plate 11 is operably attached to the left and right columns 27.

Next, a description will be given of an operation for erecting (retreating) the scaffold plate 11 thus mounted and providing a lift space for raising and lowering materials and the like at the position where the scaffold plate 11 is disposed. First, the clamp 23 is removed from the left and right columns 27. Then, as shown in FIG.
3 hangs under its own weight. In this state, the scaffold plate 11
The rotation restriction of the arm 20 with respect to is released. Then
The scaffold plate 11 is rotated upward about the connecting piece 17. When the arm 20 is almost upright to the vertical position, the arm 20 is connected to the scaffold 1
7, the clamp 23 is turned upside down and fixed to the left and right columns 27 as shown in FIG. As a result, the downward rotation of the scaffold plate 11 is restricted and the scaffold plate 11 is supported at the upright position.

After the raising and lowering of the materials and the like is completed, the scaffold
In the case of using 1, the clamp 23 is removed (restriction is released), and the scaffold plate 11 is slowly rotated downward around the connecting piece 17, and the stopper plate 18 comes into contact with the connecting frame 24 and rotates at the horizontal position. The movement is prevented (the state of FIG. 6).
Further, the clamp 23 of the arm 20 is fixed to the left and right columns 27 again (the state of FIG. 5), and the operation is completed.

With the above configuration, the present embodiment has the following effects. -The scaffold plate 11 can be moved from the horizontal position to the standing position only by rotating, and it is easy to provide an elevating space at the scaffold plate 11 position. In addition, in the horizontal position, the rotation is restricted by the arm 20 and the weight of the scaffold plate 11 is dispersed and supported by the arm 20 together with the connection frame 24, so that the strength can be maintained. -Since the rotation is regulated by the arm 20 in the standing position, there is no need for a person to hold the standing scaffold plate 11 so as not to fall down. In addition, one arm 20 can support the scaffold plate 11 at both the horizontal position and the standing position, which is convenient. The horizontal state of the scaffolding plate 11 can be maintained by simply inserting the connecting piece 17 into the connecting frame 24 by the stopper plate 18, so that the subsequent mounting and removing work of the arm 20 is facilitated.

The present invention can be embodied with the following modifications. In the scaffold plate 11 of the above embodiment as a supporting member, the fastening portion 22 restricts the scaffold plate 11 from rotating. However, it is not always necessary to restrict, and a function of merely placing the scaffold plate 11 may be used. In the above embodiment, the scaffold plate 11 is supported by the arm 20 at the standing position of the scaffold plate 11. However, other means may be provided as long as the means supports the scaffold plate 11 at the upright position. For example, as shown in FIGS. 10A and 10B, hooks 42 may be provided on the left and right columns 27 at positions corresponding to the engagement frame 41 and the scaffold plate 11. Further, as shown in FIG. 11, the second stopper plate 43 may be formed on the side of the connecting piece 17. According to the second stopper plate 43, the scaffold plate 11 stands and is held in a state of slightly falling backward from the vertical position. There is no need for a person to hold the scaffold plate 11 standing upright by these means so as not to fall down.

The position where the arm 20 is supported on the scaffold 11 can be changed as appropriate. Further, in the above-described embodiment, the clamp 23 is a means for fixing the arm 20 to the support column 27, but other fixing means may be used. In the above embodiment, the arm 20 supports the scaffold plate 11 by the fastening portion 22 between the eyebolt 25 and the nut 26. However, it is not always necessary to fasten the arm 20 as long as it can support the scaffold plate 11, and the arm 20 may be supported only from the back surface of the scaffold plate 11. -The arm main body 21 does not need to be a rod shape as described above. In the above embodiment, the scaffold plate 11 is attached to the column 27 extending in the vertical direction, and the arm 2 is attached to the same column 27.
0 clamp 23 was fixed. But,
The scaffold plate 11 may be attached to a column extending in the left-right direction, or may be attached to the braces. The same applies to the arm 20 as a support member. In the above embodiment, the connection piece 1 on the scaffold plate 11 is provided on the connection frame 24 on the scaffold side.
7 was inserted. However, conversely, the connecting piece 17 may be provided on the scaffold side, and the connecting frame 24 may be provided on the scaffold plate 11 side. The relationship between the engagement and the engaged is not limited to the means of the above embodiment. -In the said embodiment, the connection piece 17 was made to rotate. However, conversely, the connecting frame 24 on the scaffold side may be configured to rotate.

The size and shape of the scaffold plate 11 are not limited to the above embodiment. In addition, the material is not limited, and the members may be joined by means other than welding.

The technical ideas that can be grasped from the above embodiment of the present invention are described below as supplementary notes. (1) The scaffold plate structure according to claim 3, wherein the predetermined position is a use position. (2) The scaffold plate and a support arm extending from a base of the support member are fastened by a fastening member to support the scaffold plate so as not to rotate.
The scaffold plate structure according to any one of the above. (3) A scaffold plate used in the scaffold plate structure according to any one of (1) to (1) or (2).

[0019]

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a scaffold plate structure according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a method of using the scaffold plate in the same embodiment.

FIG. 3 is an explanatory diagram illustrating a method of using the scaffold plate in the same embodiment.

FIG. 4 is a front view illustrating a scaffold plate structure according to the same embodiment.

FIG. 5 is a side view illustrating a scaffold plate structure according to the same embodiment.

FIG. 6 is a side view illustrating the scaffold plate structure of the same embodiment with a clamp removed.

FIG. 7 is a front view illustrating a scaffold plate structure according to the same embodiment.

FIG. 8 is a front view illustrating an arm unit according to the same embodiment.

FIG. 9 is a side view illustrating a clamp.

10A is a front view illustrating a scaffold plate structure according to another embodiment, and FIG. 10B is an engagement frame and a hook as a support member.

FIG. 11 is an explanatory diagram illustrating a method of using a scaffold according to another embodiment.

FIG. 12 is a perspective view illustrating a conventional scaffold plate structure.

[Explanation of symbols]

11: scaffold plate, 17: connecting piece as locking member, 18: stopper plate as stopper, 20: arm as supporting member, 21
An arm body as a supporting arm, 23 a clamp as a part of a support member, 24 a connection frame as a locked member, 25 a fastening portion as a part of a support member, 27 a support as a part of a scaffold.

Claims (3)

[Claims] 1. A locking member rotatably locked to a locked member on a scaffold side is attached to a scaffold plate, and the locking member locked to the locked member is used as a center for the same scaffold. A base of a supporting member for supporting the scaffold plate is mounted on the scaffold side while holding the plate rotatably, and the scaffold plate is supported at a use position by a support arm extending from the base, and the support is provided. A scaffold plate structure wherein the member allows the scaffold plate to rotate when the scaffold plate is moved from the use position to the storage position by rotating the scaffold plate. 2. The use position supported by the support arm is a position where the scaffold plate is horizontally supported, and the storage position is a position where the scaffold plate is erected and supported.
4. The scaffold plate structure according to 1. 3. A stopper for preventing rotation is interposed between the scaffold plate and the locking member, and the scaffold plate main body is the same as that of the scaffold plate when the locking member is locked to the locked member on the scaffold side. The scaffold plate structure according to claim 1, wherein the scaffold plate is held at a predetermined position while being prevented from rotating by a stopper.