JP6276566B2 - Bracing for temporary scaffolding - Google Patents

Description

  The present invention relates to bracing for temporary scaffolds.

  In general, a temporary scaffold is installed on the outer periphery of a building when the building is constructed. In this temporary scaffold, a plurality of struts are arranged at predetermined intervals, and a scaffolding plate is installed between the struts to form a multi-level scaffold. In the construction work of such a temporary scaffold, as a safety measure for the work of adding the scaffold upward, the scaffolding material such as diagonal, horizontal, or vertical is used as a handrail before the scaffold plate is constructed. Arranged.

  When arranging the scaffolding material, for example, the brace for temporary scaffolding is detachably attached to the wedge support (holder) of the scaffolding column. Temporary scaffolding braces are attached to the two diagonal members that are inclined and crossed between the scaffolding struts, the horizontal member that is laid between the scaffolding struts, the upper end of the diagonal member and the horizontal member And an upper connecting part that is removably engaged with the upper wedge receiver of the scaffolding column, and a lower part that is attached to the lower end of the diagonal member and is removably engaged with the lower wedge receiver of the scaffolding column. Side connection part (for example, refer patent document 1).

  However, in this kind of temporary scaffolding bracing, a structure that can be more firmly and simply attached to the wedge support of the scaffolding strut to improve workability during installation and safety after installation. Is required.

JP 2012-036634 A

  The present invention has been made in view of the above points, and provides a brace for a temporary scaffold that can be more firmly and simply engaged with a wedge support of a scaffold column.

That is, the invention of claim 1 includes two diagonal members that are inclined and crossed between the scaffolding struts, a horizontal member that is laid between the scaffolding struts, an upper end portion of the diagonal members, An upper connecting portion that is attached to the horizontal member and is removably attached to an upper wedge receiver of the scaffolding column, and a lower wedge portion that is attached to a lower end portion of the diagonal member and is attached to the lower member of the scaffolding column. In the brace for temporary scaffolding comprising a lower connection part that is removably engaged, the upper connection part can be inserted into the upper wedge receiver on the other side with the end of the horizontal member fixed to the upper part on one side The main body member having the insertion portion extending downward, the rotating shaft portion formed at the lower portion on one side of the main body member, and the upper end portion of the diagonal member are formed integrally with the rotating member. The difference between the insertion portion and the upper wedge receiver that is attached to the moving shaft portion When the upper wedge receiving is fixed by sandwiching with the insertion portion to write, and a rotation fixing member for releasing fixation by rotating the rotary shaft portion as the axial center, said body member is a pair of The present invention relates to a bracing for a temporary scaffold, which is made of a plate-like member, and each insertion portion of the pair of plate-like members is bent and welded to the inside .

  The invention according to claim 2 relates to the brace for temporary scaffolding according to claim 1, wherein the fixing is released by rotating the distal end side of the rotation fixing member upward.

The brace for a temporary scaffold according to the invention of claim 1 is composed of two diagonal members disposed so as to be inclined and crossed between the scaffolding struts, a horizontal member constructed between the scaffolding struts, and the diagonal members An upper connecting portion attached to the upper end portion of the scaffolding column and removably engaged with the upper wedge receiver of the scaffolding column, and a lower wedge portion of the scaffolding column mounted on the lower end portion of the diagonal member In the brace for temporary scaffolding provided with a lower connecting portion that is removably attached to a receiver, the upper connecting portion has an end of the horizontal member fixed to an upper portion on one side and the upper wedge on the other side. A body member having an insertion portion extended downward so as to be inserted into the receiver, a rotating shaft portion formed at a lower portion on one side of the body member, and an upper end portion of the diagonal member are integrally formed. And the upper wedge of the insertion portion that is pivotally attached to the rotating shaft portion. Together with the upper wedge receiving fixed while sandwiched together with the insertion portion during insertion of the receiving, and a rotation fixing member that fixes released pivots axial center of the pivot shaft portion, the body member Is composed of a pair of plate-like members, and each insertion portion of the pair of plate-like members is bent and welded inward, so that the expansion of each plate-like member can be prevented and the main body member can be It can be formed at low cost, and can be firmly engaged with the wedge support of the scaffolding strut by an extremely simple operation.

  In the bracing for temporary scaffolding according to the invention of claim 2, the rotation fixing member is unexpectedly released from being fixed, because the distal end side of the rotation fixing member is rotated upward to release the fixation. In addition, the fixed state can be firmly held.

It is a front view of the bracing for temporary scaffolding which concerns on one Example of this invention. It is a schematic sectional drawing at the time of fixation of an upper side connection part . It is a schematic sectional drawing at the time of fixation cancellation of an upper connection part . It is a top view of a main body member.

  A brace for temporary scaffolding 10 according to one embodiment of the present invention shown in FIG. 1 is disposed between scaffolding struts 1, 1, and includes two diagonal members 11, 11, a horizontal member 12, The upper connection part 20 and the lower connection part 40 are provided. A plurality of scaffold columns 1 are arranged at predetermined intervals on the outer periphery of the building, and have a plurality of upper wedge receivers 2 and a plurality of lower wedge receivers 3. In the embodiment, each of the wedge receivers 2 and 3 is disposed at four positions of 90 ° around the scaffolding column 1, and a plurality of the wedge receivers 2 and 3 are provided at appropriate intervals in the axial direction of the scaffolding column 1. The upper wedge receiver 2 and the lower wedge receiver 3 have the same shape, and in this specification, the wedge receivers of the scaffold support 1 are distinguished from each other for convenience of explanation.

  As shown in FIG. 1, the two diagonal members 11, 11 are rod-shaped members that are disposed so as to be inclined and cross between the scaffolding struts 1, 1. Further, the horizontal member 12 is a bar-like member constructed on the side of the upper connecting portion 20 of the scaffolding columns 1, 1.

  As shown in FIGS. 1 to 3, the upper connecting portion 20 is attached to the upper end portion 11 a of the diagonal member 11 and the end portion 12 a of the horizontal member 12 so as to be detachable from the upper wedge receiver 2 of the scaffold column 1. It is a member to be worn and includes a main body member 21, a rotation shaft portion 25, and a rotation fixing member 30.

  As shown in FIGS. 2 to 4, the main body member 21 has the end 12 a of the horizontal member 12 fixed to the upper part on one side and is extended downward so that it can be inserted into the upper wedge receiver 2. It has an insertion part 22. The main body member 21 includes a pair of plate-like members 21a and 21b. The plate-like members 21a and 21b are arranged to face each other with a predetermined gap S therebetween, and the end portion of the horizontal member 12 is placed in the gap S on one side. 12a is fixed by welding or the like.

Further, as shown in FIG. 4, insertion portions 22 a and 22 b are provided opposite to each other on the other side of the pair of plate-like members 21 a and 21 b, and the insertion portions 22 a and 22 b are bent inward from each other. Then, each end is brought into contact with each other and welded to each other. Thus, each insertion portion 22a, by welding 22b, plate-like member 21 a, 2 1b of the insertion portion 22a, 22b is reinforced, the plate members 21a, widening of the gap S of 21b Can be prevented. In addition, the plate-like member 21a, 21b from becoming costly to form integrally, it is possible to inexpensively form the body member 2 1 by integrating the plate-like member 21a, and 21b by welding. In addition, the code | symbol W is the welding part of each insertion part 22a, 22b.

As shown in FIGS. 2 to 4, the rotation shaft portion 25 is a shaft member formed at a lower portion on one side of the main body member 21. The rotating shaft portion 25 of the embodiment includes a bolt member 26 that penetrates the pair of plate-like members 21 a and 21 b and a nut member 27 that fixes the bolt member 26, and the upper end portion 11 a of the diagonal member 11 is connected to the main body member 2. 1 is pivotally attached to 1.

As shown in FIGS. 2 and 3, the rotation fixing member 30 is a part that is formed integrally with the upper end portion 11 a of the diagonal member 11 and is pivotally attached to the rotation shaft portion 25 as the upper end portion 11 a of the diagonal member 11. When the insertion portion 22 is inserted into the upper wedge receiver 2, the upper wedge receiver 2 is held and fixed together with the insertion portion 22, and the rotation shaft portion 25 is rotated around the axis to be unfixed. The rotation fixing member 30 of the embodiment is a plate-like portion formed by extending the upper end portion 11a of the diagonal member 11, and is a linear end that comes into contact with the outer surface portion 2a of the upper wedge receiver 2 when fixed. Part 31 and an arcuate corner 32 formed by chamfering at least one corner (both corners in the illustrated example) of the linear end 31, and a gap between the pair of plate-like members 21 a and 21 b It is attached in S. Since the arcuate corner portion 32 is formed in the rotation fixing member 30, it is possible to prevent the corner portion from coming into contact with the upper wedge receiver 2 during the rotation and to be smoothly rotated.

  Further, as shown in FIG. 4, the rotation fixing member 30 is unlocked by rotating the tip side upward. As described above, when the rotation direction of the fixing release of the rotation fixing member 30 is the upper side, the rotation fixing member 30 is urged in the lower rotation direction by the weight of the main body member 21 at the time of fixing. Therefore, the rotation fixing member 30 is not unexpectedly released from the fixed state, and it is possible to hold the fixed state firmly. In addition, when the rotation direction of the unlocking of the rotation fixing member 30 is the upper side, the arc-shaped corner portion 32 a is formed at the lower corner portion of the linear end portion 31.

As shown in FIG. 1, the lower connection portion 40 is a member that is attached to the lower end portion 11 b of the diagonal member 11 and is removably attached to the lower wedge receiver 3 of the scaffolding column 1. The structure of the part 40 is not particularly limited as long as it can be firmly and simply engaged with the lower wedge receiver 3, and a conventionally known lower connecting part is used.

Next, an installation example of the brace for temporary scaffolding 10 will be described. In the brace for temporary scaffolding 10, after the upper connecting portion 20 is attached to the upper wedge receivers 2, 2 of the scaffold struts 1, 1, the lower connecting portion is connected to the lower wedge receivers 3, 3. 40 is attached.

When the upper connecting portion 20 is attached, as shown in FIG. 3, the insertion portion 22 of the main body member 21 is inserted from above the upper wedge receiver 2 with the distal end side of the rotation fixing member 30 rotated upward. It is. Subsequently, the distal end side of the rotation fixing member 30 is rotated downward, and the upper wedge receiver 2 is brought into contact with the outer surface portion 2a of the upper wedge receiver 2 as shown in FIG. The insertion part 22 is held together. At this time, since the arcuate corner portion 32a is formed at the lower corner portion of the linear end portion 31 of the rotation fixing member 30, the rotation fixing member 30 can be smoothly rotated to the fixed position. It becomes possible.

After attaching the upper connecting portion 20 to the upper wedge receivers 2 and 2 as described above, the lower connecting portion 40 is attached to the lower wedge receivers 3 and 3 according to a known procedure. Then, the installation of the brace 10 for temporary scaffolding is completed.

On the other hand, when disassembling the temporary scaffolding brace 10, after removing the lower connecting portion 40 from the lower wedge receivers 3, 3 of the scaffold struts 1, 1 according to a known procedure, the upper wedge receivers 2, 2 This is done by removing the upper connecting part 20.

When the upper connecting portion 20 is removed, from the state where the linear end portion 31 of the rotation fixing member 30 is in contact with the outer surface portion 2a of the upper wedge receiver 2 (see FIG. 2), as shown in FIG. The distal end side of the member 30 is rotated upward to release the fixing. At this time, since the arcuate corner portion 32 a is formed at the lower corner portion of the linear end portion 31 of the rotation fixing member 30, the linear end portion 31 of the rotation fixing member 30 becomes the upper wedge receiver 2. It is possible to smoothly rotate to the fixed release position without being caught by the outer surface portion 2a. Subsequently, the upper connection portion 20 is removed by removing the insertion portion 22 of the main body member 21 from the upper wedge receiver 2 while the rotation fixing member 30 is held at the fixing release position, and the temporary scaffolding brace 10 is disassembled. Completed.

As illustrated and described above, in the brace 10 for temporary scaffolding according to the present invention, the two diagonal members 11 and 11 disposed to be inclined and crossed between the scaffolding struts 1 and 1 and the scaffold struts 1 and 1. 1 and an upper connecting portion 20 that is attached to the upper end portion 11a of the diagonal member 11 and the horizontal member 12 and is removably attached to the upper wedge receiver 2 of the scaffolding column 1. And a lower connecting portion 40 that is attached to the lower end portion 11b of the diagonal member 11 and is removably attached to the lower wedge receiver 3 of the scaffolding strut 1, and the upper connecting portion 20 is provided on one side. A main body member 21 having an insertion portion 22 extending downward so that the end portion 12a of the horizontal member 12 is fixed to the upper portion and can be inserted into the upper wedge receiver 2 on the other side, and a lower portion on one side of the main body member 21 The rotating shaft portion 25 formed on the upper end portion 11a of the diagonal member 11 The upper wedge receiver 2 is nipped and fixed together with the insertion portion 22 when the insertion portion 22 is inserted into the upper wedge receiver 2 and is fixed to the rotation shaft portion 25. Since the rotation fixing member 30 that rotates around the axis and releases the fixation is provided, the upper connecting portion 20 is firmly fixed to the upper wedge receiver 2 by an extremely simple operation of rotating the rotation fixing member 30. In addition, the upper connecting portion 20 can be fixed and released by the same extremely simple operation.

  Further, since the distal end side of the rotation fixing member 30 is rotated upward to release the fixing, the rotation fixing member 30 is urged in the downward rotation direction by the weight of the main body member 21 at the time of fixing, and is fixed. The member 30 is not unexpectedly unlocked, and it is possible to hold the fixed state firmly.

  Since the main body member 21 includes a pair of plate-like members 21a and 21b, and the insertion portions 22a and 22b of the pair of plate-like members 21a and 21b are bent and welded to each other, the insertion portions 22a, 22b can be reinforced to prevent the plate-like members 21a and 21b from expanding, and the body member 21 can be formed at low cost.

  In addition, the bracing for temporary scaffolding of the present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Scaffolding support | pillar 2 Upper wedge holder 3 Lower wedge receiver 10 Bracing for temporary scaffolding 11 Diagonal material 12 Horizontal material 20 Upper connection part 21 Main body member 22 Insertion part 25 Rotation shaft part 30 Rotation fixing member 40 Lower connection part

Claims (2)

Two diagonal members arranged to be inclined and crossed between the scaffolding struts, a horizontal member laid between the scaffolding struts, an upper end portion of the diagonal member and the horizontal member, and attached to the horizontal member An upper connecting part that is removably engaged with the upper wedge receiver of the column, and a lower side that is attached to the lower end of the diagonal member and is removably engaged with the lower wedge receiver of the scaffold column In the brace for temporary scaffolding comprising a connecting part,
The upper connecting portion includes a main body member having an insertion portion that extends downward so that an end portion of the horizontal member is fixed to an upper portion on one side and can be inserted into the upper wedge receiver on the other side; A rotating shaft formed on the lower part of one side of the member, and formed integrally with the upper end of the diagonal member, and is pivotally attached to the rotating shaft and is inserted into the upper wedge receiver of the insertion portion. The upper wedge receiver is clamped and fixed together with the insertion portion, and includes a rotation fixing member that rotates around the rotation shaft portion and releases the fixing .
The brace for temporary scaffolding, wherein the main body member is composed of a pair of plate-like members, and each insertion portion of the pair of plate-like members is bent and welded to the inside .   The brace for a temporary scaffold according to claim 1, wherein the fixing is released by rotating the distal end side of the rotation fixing member upward.

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