JP2019100077A - Reinforcing material and temporary scaffold - Google Patents

Abstract

To provide a reinforcing material and a temporary scaffold provided with the same, which can improve the strength of a temporary scaffold while suppressing inhibition of movement of workers.SOLUTION: A reinforcing material 32 is used in a temporary scaffold 100. The reinforcing material 32 comprises a linearly extending main body portion 34, and a first metal fitting 36 fixed to the main body portion 34 and attachable to a connecting metal fitting 18 of a support 12, and a second fitting 38 fixed to the main body portion 34 at a position away from the first metal fitting 36 in the axial direction of the main body portion 34 and attachable to the connecting metal fitting 18 of the support 12. The first metal fitting 36 is configured to be fixable to the fitting of the support by a wedge. The first metal fitting 36 and the second metal fitting 38 are configured to be attachable to the main body portion 34 to the support 12 so that the main body portion 34 extends in the vertical direction side by side with the support 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a temporary scaffold reinforcement and a temporary scaffold provided with the same.

  Conventionally, various temporary scaffolds, such as a wedge-locking type scaffold and a formwork support, are used in construction sites and the like.

  12 and 13 show an example of a wedged scaffold. In addition, FIG. 12 is a schematic diagram which looked at a wedge binding type | mold scaffold from the direction between beams, and FIG. 13 is the figure which looked at a part of wedge binding type | mold scaffold from the row direction.

  With reference to FIGS. 12 and 13, a wedge-clamped scaffold 10 (hereinafter abbreviated as scaffold 10) comprises a plurality of circular tubular columns 12 spaced apart in the direction of beam rows and in the direction between beams, and beam rows A plurality of circular tubular connecting members 14 connecting the columns 12 with each other in the direction, and a plurality of circular tubular connecting members 16 connecting the columns 12 with each other in the inter-beam direction are provided. In addition, a plurality of floor-attached cloth strips 17 are provided so as to connect the connecting members 16 in the row direction.

  Each of the plurality of columns 12 is configured using, for example, a plurality of metal pipes. A plurality of connection fittings 18 are attached to the columns 12 at intervals in the axial direction (vertical direction) of the columns 12. Each connection fitting 18 is welded to the support 12, for example. Each of the plurality of links 14 and the plurality of links 16 is configured using a metal pipe. Both ends of the tie 14 and both ends of the tie 16 are connected to the connection fitting 18 using wedges 20 (see FIG. 13).

  Conventionally, techniques for improving the strength of the scaffold as described above have been proposed.

  For example, Patent Document 1 discloses an apparatus for reinforcing a scaffold construction. The reinforcement device disclosed in Patent Document 1 is configured to support from below a cross member that connects a pair of support members that face each other in the end direction (the direction between beams). Specifically, the strengthening device of Patent Document 1 includes a pair of brace members. The pair of brace members are provided so as to extend obliquely downward from the horizontal member so as to increase the distance between them in the end direction. The upper end portion of each brace member is fixed to the cross member via fixing means, and the lower end portion of each brace member is fixed to the support member via fixing means.

  Patent Document 1 describes that a temporary scaffold can be reinforced by supporting the cross member from below by the above-described reinforcement device.

JP, 2013-194461, A

  However, in the reinforcement device of Patent Document 1, as described above, the pair of brace members are provided to extend obliquely downward from the horizontal member. Therefore, when the worker moves on the temporary scaffold, there is a problem that the head of the worker easily contacts the brace member. That is, in temporary scaffolding, there is a problem that a worker's passage becomes narrow.

  Therefore, an object of the present invention is to provide a reinforcing material and a temporary scaffold provided with the same, which can improve the strength of the temporary scaffold while suppressing inhibition of movement of a worker.

  The present invention provides the following reinforcements and temporary scaffolds.

(1) A plurality of vertically extending struts, a plurality of wedge-fitting connection fittings fixed at intervals in the vertical direction in each of the plurality of struts, and a plurality of horizontally connecting the plurality of struts A reinforcing material used in a temporary scaffold having a tie material,
A linearly extending body portion;
A first fitting fixed to the main body and attachable to the connection fitting of the support;
A second fitting fixed to the main body at a position separated from the first fitting in the axial direction of the main body and attachable to the connecting fitting of the support;
Equipped with
At least one of the first fitting and the second fitting is configured to be fixable to the connection fitting of the post by a wedge,
The reinforcing member, wherein the first metal fitting and the second metal fitting are configured to be capable of attaching the main body portion to the support column such that the main body portion extends in the vertical direction along the support column.

(2) One of the first fitting and the second fitting is configured to be fixable to the connection fitting of the post by a wedge,
The reinforcing material according to (1), wherein the other of the first fitting and the second fitting has a hook shape that can be engaged with the connection fitting of the support.

(3) A support portion capable of supporting the connecting material from below, and an adjustment portion which connects the support portion and one end of the main body portion in the axial direction and adjusts the position of the support portion in the axial direction The reinforcing material according to (1) or (2) above, further comprising.

(4) The reinforcing member according to (3), wherein the support portion does not protrude upward beyond the connecting member when the lower surface of the connecting member is supported.

(5) A plurality of vertically extending struts, a plurality of wedge connection fittings fixed at intervals in each of the plurality of struts, and a plurality of links connecting the plurality of struts in the horizontal direction A temporary scaffold having a material and the reinforcing material according to any one of the above (1) to (4) attached to at least one of the plurality of columns.

  According to the present invention, it is possible to improve the strength of the temporary scaffold while suppressing inhibition of the movement of the worker.

FIG. 1 is a view showing a part of a temporary scaffold according to an embodiment of the present invention. FIG. 2 is a view showing a reinforcing material according to an embodiment of the present invention. FIG. 3 is a figure for demonstrating the attachment method of a reinforcing material. FIG. 4 is a figure for demonstrating the attachment method of a reinforcing material. FIG. 5 is a figure for demonstrating the attachment method of a reinforcing material. FIG. 6 is a figure for demonstrating the attachment method of a reinforcing material. FIG. 7 is a figure for demonstrating the attachment method of a reinforcing material. FIG. 8 is a cross-sectional view taken along line A-A of FIG. FIG. 9 is a view showing a modification of the reinforcing material. FIG. 10 is a figure which shows the other example of the support method of a binder. FIG. 11 is a diagram illustrating another example of the adjustment unit. FIG. 12 is a view showing an example of a wedge binding type scaffold. FIG. 13 is a view showing an example of a wedge binding type scaffold.

  Hereinafter, a reinforcing material according to an embodiment of the present invention and a temporary scaffold provided with the same will be described.

  FIG. 1 is a view showing a part of a temporary scaffold according to an embodiment of the present invention. Referring to FIG. 1, a temporary scaffold 100 according to the present embodiment includes a scaffold main body 30 and a plurality of reinforcing members 32. In addition, since the scaffold main body 30 has the structure similar to the scaffold 10 demonstrated in FIG. 12 and FIG. 13, detailed description is abbreviate | omitted.

  FIG. 2 is a view showing the reinforcing member 32, where (a) is a front view and (b) is a right side view. Referring to FIG. 2, the reinforcing member 32 includes a main body portion 34 extending linearly, a first metal fitting 36 fixed to the main body portion 34, a second metal fitting 38 fixed to the main body portion 34, and a substantially U shape in side view A support portion 40 having a shape, and an adjustment portion 42 which connects one end portion in the axial direction of the main body portion 34 and the support portion 40 and adjusts the position of the support portion 40 are provided.

  The main body portion 34 has, for example, a circular pipe shape or a square pipe shape. The main body portion 34 is made of, for example, a metal material such as steel.

  The first fitting 36 is provided on one side of the center of the main body 34 in the axial direction of the main body 34, and the second fitting 38 is on the other side of the center of the main body 34 in the axial direction of the main body 34. Provided in The first metal fitting 36 and the second metal fitting 38 are configured such that the main body portion 34 can be attached to the support column 12 so that the main body portion 34 extends in the vertical direction along the support column 12. In the present embodiment, the first metal fitting 36 and the second metal fitting 38 are provided so as to protrude from the main body 34 in a direction perpendicular to the axial direction of the main body 34. In the following, one side in the axial direction of the main body portion 34 is referred to as upper side, and the other side is referred to as lower side. Also, the direction perpendicular to the vertical direction is taken as the horizontal direction.

  In the present embodiment, the first fitting 36 is configured to be fixed to the connection fitting 18 of the scaffold main body 30 by the wedge 44 (see FIG. 1). The first fitting 36 is welded to the main body 34. In addition, as the connection fitting 18, the first fitting 36, and the wedge 44, since a known fitting and a wedge that are used in conventional wedge binding type scaffolds, form support and the like can be used, detailed description will be given. I omit it.

  Referring to FIGS. 1 and 2, the second fitting 38 is formed in a hook shape so as to be able to be locked to the connection fitting 18 of the scaffold main body 30. The second fitting 38 is welded to the main body 34. Referring to FIG. 2B, in the present embodiment, the second fitting 38 includes a first portion 38a that protrudes obliquely upward from the main body portion 34, and a tip end portion of the first portion 38a so as to be separated from the main body portion 34. And a third part 38c extending downward from the tip of the second part 38b, and a fourth part extending diagonally downward from the lower end of the third part 38c so as to approach the main body 34. And 38d. In the following, the fourth part 38 d is referred to as a return part 38 d.

  The support portion 40 has a substantially U-shape as described above, and has a bottom portion 40 a and a pair of rising portions 40 b rising upward from the bottom portion 40 a. At the central portion and the upper end portion of each rising portion 40b, a recessed portion 40c which is recessed in a circular arc shape downward is formed. The support portion 40 is made of, for example, a metal material such as steel.

  The adjustment unit 42 holds the support unit 40 movably in the vertical direction with respect to the main body unit 34. In the present embodiment, the adjustment unit 42 includes a guide member 42a having a screw thread on the outer peripheral surface, a hollow movable member 42b having a screw groove (not shown) on the inner peripheral surface, and a hollow member extending upward from the movable member 42b. And a connecting member 42c. The guide member 42 a has a circular tube shape or a cylindrical shape, and is provided to extend upward from the upper end portion of the main body portion 34. In the present embodiment, the moving member 42b is fitted in the guide member 42a so that the screw thread of the guide member 42a and the screw groove of the moving member 42b are screwed together. The connection member 42c has a circular pipe shape or a square pipe shape. The lower end portion of the connecting member 42c is rotatably supported by the moving member 42b with respect to the moving member 42b. The support part 40 is being fixed to the upper end part of the connection member 42c. In the present embodiment, by moving the moving member 42 b, the moving member 42 b moves in the vertical direction with respect to the guide member 42 a. Thereby, the support portion 40 moves in the vertical direction with respect to the main body portion 34. Further, in the present embodiment, the vertical position of the support 40 can be fixed by stopping the moving member 42 b at an arbitrary position. Although the detailed description is omitted, the connecting member 42c may be fixed to the moving member 42b. In this case, the support portion 40 is rotatably supported at the upper end portion of the connecting member 42c.

  Referring to FIG. 1, in the present embodiment, the reinforcing material 32 is attached to the support 12 between a pair of connecting members 16 adjacent in the vertical direction. In the example shown in FIG. 1, each reinforcing member 32 is attached to the column 12 so as to be located inside the pair of connecting members 16 in the inter-beam direction, but the outer side of the pair of connecting members 16 in the inter-beam direction It may be attached to the post 12 to be located at

  In the example illustrated in FIG. 1, the connection fitting 18 positioned below one of the connection fittings 18 to which the upper connecting member 16 is connected among the plurality of connection fittings 18 and the first fitting 36 are connected, and the lower side The second metal fitting 38 is connected with the connection metal fitting 18 positioned one position above the connection metal fitting 18 to which the joint member 16 is connected. In a state where the reinforcing member 32 is attached to the support 12, the length in the vertical direction of the reinforcing member 32 is set to, for example, a length of three or more and less than four, when one pair of vertically adjacent connecting fittings 18 is one section. Ru. Specifically, in the state of being attached to the support 12, the length in the vertical direction of the reinforcing material 32 is set to, for example, about 1.4 m to 1.8 m. In the example shown in FIG. 1, the length in the vertical direction of the reinforcing member 32 is set to a length corresponding to about three sections, but the main body portion is further below the main body portion 34 shown in FIG. It may extend. The length of the main body portion 34 in the vertical direction is preferably set to one or more sections, and more preferably set to two or more sections.

  Hereinafter, a method of attaching the reinforcing material 32 to the support 12 will be briefly described. 3 to 7 are diagrams for explaining the method of attaching the reinforcing material 32. FIG. 8 is a cross-sectional view taken along line A-A of FIG.

  Referring to FIGS. 3 and 4, when attaching the reinforcing member 32 to the support 12, first, the barbed portion 38 d of the second fitting 38 is inserted into the wedge insertion hole (not shown) of the connecting fitting 18 from above Plug in. Next, referring to FIGS. 5 and 6, after fitting the first fitting 36 and the connecting fitting 18, the wedge 44 fixes the first fitting 36 and the connecting fitting 18.

  Referring to FIGS. 7 and 8, support portion 40 is moved upward by adjustment portion 42 to bring support portion 40 into contact with the lower surface of link 16. Thereby, attachment of the reinforcing material 32 to the support 12 is completed. As shown in FIG. 8, in the present embodiment, the lower surface of the connecting member 16 is fitted into the concave portions 40 c of the pair of rising portions 40 b. In the present embodiment, the support portion 40 does not protrude upward beyond the link member 16 in a state in which the lower surface of the link member 16 is supported.

  As described above, in the present embodiment, the first fitting 36 and the second fitting 38 are both attached to the connecting fitting 18 fixed to the support 12. Thus, the reinforcing member 32 (the main body portion 34) can be disposed along the support 12 between at least one section or more between the pair of connecting members 16. As a result, it is possible to sufficiently suppress the deformation of the support 12 in the inter-beam direction by the reinforcing material 32, and to suppress the buckling of the support 12. More specifically, even if a force to deform the column 12 is generated, the force can be borne by the reinforcing member 32 as well as the column 12. That is, the support 12 and the reinforcement 32 can resist deformation of the support 12. In other words, by attaching the reinforcing member 32 to the support 12, the cross-sectional area of the portion that resists deformation of the support 12 can be increased. Thereby, the buckling of the support 12 can be suppressed.

  Further, in the present embodiment, the reinforcing member 32 can be attached in the vicinity of the support 12 by the first fitting 36 and the second fitting 38 so that the main body 34 extends in the vertical direction side by side with the support 12. Thereby, when a worker moves in temporary scaffold 100, it can control that a worker's head contacts reinforcement 32 (body part 34). That is, it can suppress that a worker's passage becomes narrow.

  As a result of the above, according to the reinforcing material 32 according to the present embodiment, the strength of the temporary scaffold 100 can be improved while suppressing inhibition of the movement of the worker.

  Further, in the present embodiment, the movement of the connecting member 16 in the column direction can be restricted by the support portion 40. Thereby, the strength of temporary scaffold 100 can be further improved. Generally, when the support 12 and the connecting member 16 are firmly connected, it is conceivable that the connecting member 16 is deformed in synchronization with the deformation of the support 12 and the entire temporary scaffold 100 is deformed. In this regard, in the present embodiment, the support member 40 supports the link member 16 from below at a position away from the connection portion between the column 12 and the link member 16 in the inter-beam direction, thereby sufficiently deforming the link member 16. Can be suppressed. As a result, deformation and buckling of the entire temporary scaffold 100 can be suppressed.

  Further, in the present embodiment, the position of the support portion 40 can be adjusted by the adjustment portion 42. Thereby, after attaching the reinforcing material 32 to the support 12, the support portion 40 can be easily brought into contact with the connecting material 16.

  Further, in the present embodiment, the upward movement of the return portion 38 d of the second fitting 38 is restricted by the connecting fitting 18. In other words, the upward movement of the reinforcing member 32 is restricted by the contact between the return portion 38 d and the connection fitting 18. Thereby, it can fully suppress that the reinforcing material 32 remove | deviates from the support | pillar 12. As shown in FIG.

  Further, in the present embodiment, the support portion 40 is configured not to protrude upward relative to the link member 16 when the link member 16 is supported from below. In this regard, in the strengthening device of Patent Document 1 described above, the upper end portion of the brace member is connected to the horizontal member via the upper fixing means, but the upper fixing means protrudes upward relative to the horizontal member . In temporary scaffolding, many of the floored fabric frames are attached to the struts such that the top surface of the flooring is approximately at the same height as the top of the cross member. For this reason, as in the reinforcing device of Patent Document 1, when the upper fixing means for connecting the brace member and the horizontal mounting member protrudes upward more than the horizontal mounting material, that is, the floored cloth frame, the worker can fix the upper fixing means. There is a possibility of On the other hand, as described above, in the present embodiment, the support portion 40 does not protrude above the link member 16. For this reason, it is possible to prevent the worker from encroaching on the support portion 40 and blocking the movement of the worker by the support portion 40.

  Although the above-mentioned embodiment explained the case where reinforcing material 32 had the 1st metal fitting 36 and the 2nd metal fitting 38, the number of metal fittings for attaching reinforcing material 32 to support 12 is not limited to two. For example, the reinforcement may include three or more fittings that can be connected to the connection fitting 18 of the support 12.

  In addition, in the above-mentioned reinforcement material 32, the structure of the 1st metal fitting 36 and the 2nd metal fitting 38 may be replaced. In this case, the above-described return portion 38d is not provided in the second fitting (a fitting provided on the upper side).

  Although the above-mentioned embodiment demonstrated the case where only one of the 1st metal fittings and the 2nd metal fittings were fixed to connecting fitting 18 of support 12 by a wedge, both of the 1st metal fittings and the 2nd metal fittings are , And may be fixed to the connection fitting 18 of the support 12 by a wedge. For example, instead of the second fitting 38, a fitting having the same configuration as the first fitting 36 may be provided as a second fitting.

  In the above-described embodiment, the connection fitting 18 positioned one lower part of the connection fitting 18 to which the upper joining member 16 is connected and the first fitting 36 are connected, and the connecting attachment is connected to the lower joining member 16. The first metal fitting 36 and the second metal fitting 38 are provided such that the connection metal fitting 18 positioned one upper side of the second metal fitting 18 and the second metal fitting 38 are connected, but in the first metal fitting 36 and the second metal fitting 38 The position is not limited to the example described above. For example, the first metal fitting 36 may be provided so as to be connected with the two lower connection fittings 18 of the connection fitting 18 to which the upper tie 16 is connected, and the lower tie 16 is connected The second metal fitting 38 may be provided so as to be connected to the two metal connection fittings 18 located above the connection fitting 18.

  Although the above-mentioned embodiment explained the case where the 1st metal fitting 36 and the 2nd metal fitting 38 were welded to the main-body part 34, the 1st metal fitting 36 and the 2nd metal fitting 38 are attached to the main-body part 34 via the other member. It may be fixed. Alternatively, as in the reinforcing member 32 a shown in FIG. 9, the second metal fitting 380 may be formed by deforming the lower end portion of the main body portion 34.

  Moreover, in the above-mentioned embodiment, although the connecting material 16 is supported from the downward direction by the recessed part 40c of each rising part 40b, as shown in FIG. 10, the connecting material 16 is fitted between a pair of rising parts 40b, The bottom 16a may support the tie 16 from below. In this case, the recess 40c may not be provided.

  Moreover, the structure of the adjustment part 42 is not limited to the above-mentioned example, The various structure which can vertically move the support part 40 is employable. Although detailed description is omitted, for example, as shown in FIG. 11 (a) instead of the above-mentioned moving member 42b, a hollow moving member 46 having an inclined surface 46a and a position adjusting member in contact with the inclined surface 46a 48 may be provided. Also in the adjusting unit 42 shown in FIG. 11A, the moving member 46 is provided rotatably with respect to the guide member 42a. However, no screw thread is formed on the outer peripheral surface of the guide member 42 a, and no screw groove is formed on the inner peripheral surface of the moving member 46.

  In the present embodiment, by rotating the moving member 46, the inclined surface 46a rotates while being in contact with the position adjusting member 48. As a result, the moving member 46 moves up and down, and the connecting member 42c and the support portion 40 (see FIG. 2) can move up and down.

  Further, although the detailed description is omitted, for example, as shown in FIG. 11B, the adjusting unit 42 may be configured to move the connecting member 42c up and down by driving the wedge 50 into the connecting member 42c. Good. In the present embodiment, the connecting member 42c may have a cylindrical shape or a columnar shape.

  Although the above-mentioned embodiment demonstrated the case where a scaffold main body was a wedge-binding type | mold scaffold, this invention is applicable also to other temporary scaffolds, such as a formwork support.

  According to the present invention, it is possible to improve the strength of the temporary scaffold while suppressing inhibition of the movement of the worker. Therefore, the present invention can be suitably used in various temporary scaffolds.

10 Scaffold (Wedge connection type scaffold)
12 pillars 14 and 16 connecting members 17 floor-embedded cloth framework 18 connecting metal fittings 20 and 44 wedges 30 scaffolding main body 32 reinforcing material 34 main body part 36 first metal fitting 38 second metal fitting 40 supporting part 42 adjusting part 100 temporary scaffolding

Claims (5)

A plurality of vertically extending support columns, a plurality of wedge-fitting connection fittings fixed at intervals in the vertical direction in each of the plurality of support columns, and a plurality of connecting members for connecting the plurality of support columns in the horizontal direction A reinforcing material used in a temporary scaffold having
A linearly extending body portion;
A first fitting fixed to the main body and attachable to the connection fitting of the support;
A second fitting fixed to the main body at a position separated from the first fitting in the axial direction of the main body and attachable to the connecting fitting of the support;
Equipped with
At least one of the first fitting and the second fitting is configured to be fixable to the connection fitting of the post by a wedge,
The reinforcing member, wherein the first metal fitting and the second metal fitting are configured to be capable of attaching the main body portion to the support column such that the main body portion extends in the vertical direction along the support column. One of the first fitting and the second fitting is configured to be fixable to the connection fitting of the post by a wedge,
The reinforcing material according to claim 1, wherein the other of the first fitting and the second fitting has a hook shape that can be locked to the connection fitting of the post.   The apparatus further comprises: a support portion capable of supporting the bridging member from below; and an adjustment portion that connects the support portion and one end of the main body portion in the axial direction and adjusts the axial position of the support portion. The reinforcing material according to claim 1 or 2.   The reinforcing member according to claim 3, wherein the support portion does not protrude upward beyond the connecting member when supporting the lower surface of the connecting member. A plurality of vertically extending struts, a plurality of wedge-fitting connection fittings fixed at intervals in each of the plurality of struts, a plurality of connecting members for coupling the plurality of struts in the horizontal direction, and The temporary scaffold which has a reinforcing material in any one of the Claims 1-4 attached to at least one of these support | pillars.

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