Bracket for scaffold / protection unit

Abstract

To provide a bracket for a scaffold / protection unit which can be replaced together with a scaffold unit by fixing a bracket to a scaffold unit, to eliminate the labor required for replacement, reduce the number of brackets, and reduce costs.SOLUTION: A bracket 2 is used in a scaffold unit that is arranged on an outside of a wall of a structure under construction and is used as a scaffold or as a protective unit that serves as a mounting frame for a fall prevention net, etc. The bracket 2 attached to a frame 1 that functions as a scaffold and fixed to the structure, has a detachable mounting portion 12 for the structure and a detachable fixed portion 13 equipped with a clamp 22a to be fixed to the frame 1. Further, the fixed portion 13 equipped with the clamp 22a is rotatable by pivoting an arm 17 that is attachable / detachable to / from the mounting portion 12 with respect to a clamp bracket 18.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a scaffolding / curing unit mounting system that is mainly arranged on the outside of the wall of a structure under construction and is used as a scaffolding or a curing unit that serves as a mounting frame for a fall prevention net or the like. Bracket It is related to. [Background technology]

[0002] Scaffolding is set up around structures (buildings) under construction (or renovation, painting, etc.), and netting is stretched on the outside of the scaffolding to prevent falls. Even if scaffolding is not set up, frames may be erected on the outside of the structure to stretch the netting to prevent falls. For low-rise structures, these scaffolding and frames can be erected from the ground level adjacent to the structure. However, in recent years, it is often the case that scaffolding and frames are fixed to the structure itself, even for mid- to high-rise buildings.

[0003] When fixing scaffolding or frames to such structures themselves, they are made into units (hereafter referred to as scaffolding / protection units) and attached only to the necessary parts.

[0004] The following patent document is a scaffolding / curing unit that has been patented by the applicant as being easy to rearrange and can be flexibly adapted to a variety of structures. [Patent Document 1] Patent No. 4058383

[0005] As shown in FIG. 13, the scaffolding / protection unit of Patent Document 1 comprises a frame 1 that functions as a scaffolding, and a bracket 2 for fixing the frame 1 to a structure such as a building under construction.

[0006] The frame 1 has a vertical member and a guide rail 15 fixed over the entire length via stays 15a provided at regular intervals on the vertical member.

[0007] The bracket 2 has an attachment portion for attaching to the structure, a guide member 20a that guides the guide rail 15 so that it can slide up and down, and a fixing portion 22 that fixes the frame 1. The fixing portion 22 can selectively fix / unfix the frame 1, and is attached so that it can be moved to a position where it does not interfere with the guide rail 15 when the guide rail 15 slides up and down.

[0008] The attachment part to the structure consists of an L-shaped member 20 and a gripping member 21 that can slide / fix relative to the L-shaped member 20. The gripping member 21 has an extended arm, and a stopper 21b having a conical receiving part 21c with a rubber member arranged on the surface at the tip is screwed onto the arm.

[0009] A pair of mounting parts 20e, 20f with U-shaped cross sections and long holes formed therein are attached to the upper surface of the long part of the L-shaped member 20, and the fixed part 22 is a right-angled triangular frame formed of a metal square pipe and a metal plate to which a clamp 22a that fixes the guide rail 15 is attached, and a bolt for mounting to the mounting part 20f is inserted into the part corresponding to the most acute vertex, and it rotates relative to the L-shaped member 20 around this part.

[0010] Furthermore, a bolt for fixing to the mounting part 20e is inserted near the part corresponding to the right-angle vertex of the fixing part 22, and when this part is fixed to the mounting part 20e with a bolt and nut, the fixing part 22 can be in a fixed state, and when it is not fixed, the fixing part 22 can be in an unfixed state.

[0011] A fall prevention mechanism is attached to the guide member 20a to close or open the gap formed by the guide portion through which the stay 15a passes, and the fall prevention mechanism is locked so as not to rotate below the position where it closes the gap. This lock is attached to a pair of guide members 20a that are parallel to the long portion of the L-shaped member 20, and is rotatable about a rotation shaft 20g provided on the guide member 20a. the law of nature The lever attached is 20h.

[0012] Scaffolding units are usually fixed to the structure. When construction is (almost) completed and scaffolding units are no longer needed on the lower floors, and a situation occurs in which a higher floor is constructed and scaffolding units are needed on the upper floors. In this case, the scaffolding units are moved to the upper floors.

[0013] First, hang frame 1 with a portable electric chain hoist or the like to prevent it from falling even if the bracket 2 is released.

[0014] The fixing portion 22 of the bracket 2 is also flipped up. The fixing portion 22 is released from the mounting portion 20e and rotated around the mounting portion 20f to flip up, thereby retracting to a position where it will not interfere with the frame 1 when the frame 1 slides up and down. In this state, power is supplied to the electric chain hoist to drive it, and the frame 1 is slid upward.

[0015] At this time, the frame 1 slides smoothly because its guide rails 15 are guided by the guide members 20a of the bracket 2. Furthermore, because the guide rails 15 are guided by the guide members 20a of the bracket 2, the frame 1 does not come off the structure, and repositioning (sliding of the frame 1) can be performed while suppressing the effects of wind.

[0016] After sliding the frame 1 to a predetermined position, the frame 1 is fixed again using the fixing portion 22 of the bracket 2. Summary of the Invention [Problem to be solved by the invention]

[0017] In the scaffolding / protection unit of Patent Document 1, bracket 2 requires a bracket on one floor for unit replacement (climbing), and this replacement bracket must be carried by hand to the upper floor each time the unit is replaced.

[0018] The object of the present invention is to solve the inconveniences of the above-mentioned conventional example, and to provide a scaffolding / protection unit in which the brackets are fixed to the scaffolding unit and can be replaced together with the unit, eliminating the labor of replacing the units and reducing the number of brackets, thereby reducing costs. Bracket The purpose is to provide [Means for solving the problem]

[0019] In order to achieve the above object, the present invention as set forth in claim 1 is a curing unit that is arranged on the outside of the wall of a structure under construction and is used as a scaffolding or as a mounting frame for a fall prevention net, etc. For scaffolding / curing units The bracket to be used is The attachment part to the structure and the fixing part to the frame of the scaffolding / curing unit are detachable from each other, The aforementioned The fixing part is made of a metal square pipe with horizontal flanges on the top and bottom of the tip of the arm, and the top and bottom horizontal flanges formed on the clamp brackets attached in a vertical row to clamp to the frame of the scaffolding / curing unit are overlapped with the horizontal flanges at the tip of the arm, and a bolt shaft is passed through it, making the arm and clamp bracket rotatable around the shaft as a fulcrum. The gist of this is as follows.

[0020] According to the present invention as set forth in claim 1, when the bracket is detached from the mounting portion to the structure, the fixing portion is fixed to the frame that functions as a scaffolding by a clamp, and can be raised together with the frame and replaced.

[0021] Furthermore, since the frame rises together in this manner, the fixed portion provided with the clamp is rotatable by pivoting the support portion that is detachable from the mounting portion to the clamp fixed body, so that the support portion can be rotated and moved aside so as not to interfere with the rise.

[0022] The present invention as set forth in claim 2 is a device installed between parallel scaffolding / curing units. As, On the other hand Scaffolding / Curing Unit The other end of the arm is equipped with a clamp for fixing to the Scaffolding / Curing Unit The gist of this is to install a guide bracket with a guide portion for the vertical member of the frame.

[0023] According to the present invention described in claim 2, in claim 1, the bracket is fixed to the scaffolding unit and rises together with the scaffolding unit, so that the rising scaffolding unit can be guided relative to other scaffolding units by the guide bracket, allowing for stable movement of the scaffolding unit. [Effects of the Invention]

[0024] As described above, the scaffolding / curing unit of the present invention Bracket The brackets are fixed to the scaffolding unit and can be replaced together with the unit, eliminating the need for replacement work and reducing the number of brackets, which also reduces costs. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a side view showing a first embodiment of the bracket for a scaffolding / curing unit of the present invention. FIG. [Figure 2] FIG. 2 is a side view showing a second embodiment of the bracket for a scaffolding / curing unit of the present invention. [Figure 3] FIG. 2 is a plan view showing a second embodiment of the bracket for a scaffolding / curing unit of the present invention. [Figure 4] FIG. 2 is a side view of the bracket portion of the scaffolding / curing unit bracket of the present invention. [Figure 5] This is a plan view of the fixing part equipped with a clamp of the bracket for the scaffolding / curing unit of the present invention. [Figure 6] FIG. 2 is a side view of the inter-unit guide bracket of the scaffolding / curing unit bracket of the present invention. [Figure 7] FIG. 2 is a plan view of the inter-unit guide bracket of the scaffolding / curing unit bracket of the present invention. [Figure 8] FIG. 2 is a front view of the inter-unit guide bracket of the scaffolding / curing unit bracket of the present invention. [Figure 9] FIG. 2 is a plan view showing the use of the bracket for the scaffolding / curing unit of the present invention. [Figure 10] FIG. 2 is a front view showing the use of the bracket for the scaffolding / curing unit of the present invention. [Figure 11] FIG. 2 is a side view showing the use of the bracket for the scaffolding / curing unit of the present invention. [Figure 12] FIG. 2 is an enlarged plan view showing the use of the bracket for the scaffolding / curing unit of the present invention. [Figure 13]FIG. 10 is an explanatory diagram showing a conventional example. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 shows a scaffolding / curing unit according to the present invention. Bracket 12 showing the conventional example, the same components are designated by the same reference numerals.

[0027] The structure is comprised of a frame 1 which is arranged on the outside of the wall of a structure under construction and is used as a scaffold or as a mounting frame for a fall prevention net, etc., and a bracket 2 for fixing the frame 1 to the structure such as a building under construction.

[0028] Although not shown in the drawings, a net 10 to prevent falls may be stretched on the outermost side of the frame 1. The frame 1 itself is almost the same as the conventional scaffolding frames that have been commonly used, and is composed of vertical steel vertical members 11, horizontal members, braces placed between them, and scaffolding boards 14 hung between them.

[0029] The frame 1 has guide rails 15 fixed over the entire length to the vertical members 11 on the structure side. The guide rails 15 are fixed to the vertical members 11 by welding via stays 15a provided at regular intervals. The guide rails 15 are located further towards the structure side than the vertical members 11 on the structure side.

[0030] The guide rail 15 is held by a bracket 2, which is fixed to a structure.

[0031] In the figure, reference numeral 16 denotes a gap plate for filling the gap between the scaffolding board 14 and the structure, and can be folded up above the scaffolding board 14.

[0032] The bracket 2 is attached to the frame 1 that functions as the scaffolding and fixed to the structure, and consists of a combination of an attachment part 12 for attaching to the structure and a fixing part 13 equipped with a clamp that fixes to the frame 1, and these attachment part 12 and fixing part 13 are detachable from each other.

[0033] The mounting portion 12 consists of an L-shaped member 20 and a gripping member 21. The L-shaped member 20 is made by joining two square metal pipes at a right angle, and multiple bolt holes 20b for fixing the gripping member 21 are formed through the side of the long portion.

[0034] A gripping member 21 is slidably inserted into this L-shaped member 20, and a bolt hole 21a corresponding to the bolt hole 20b of the L-shaped member 20 is formed through the square tubular portion of the gripping member 21.

[0035] The gripping member 21 is fixed to the L-shaped member 20 by inserting a bolt into the bolt hole 21a and a bolt hole 20b of the L-shaped member 20 and fastening them together.

[0036] In addition, the gripping member 21 has an arm extending in a direction perpendicular to the axial direction of the above-mentioned rectangular tubular portion, and a stopper 21b is screwed onto this arm so that it is parallel to the axial direction of the rectangular tubular portion (i.e., the L-shaped member 20).

[0037] At the tip of stopper 21b (the side facing the short portion of L-shaped member 20), a conical receiving portion 21c with a rubber member on its surface is formed, and this receiving portion 21c also prevents bracket 2 itself from slipping and damage to the structure (see Figure 4).

[0038] A thread is formed on the shaft of the stopper 21b, and is screwed into the screw hole of the arm of the gripping member 21 body (the nut 21d is welded to the arm).

[0039] Stopper 21b can move back and forth in its axial direction by rotating its axis, and this movement is used to clamp a part of the structure between the short portion of L-shaped member 20 and receiving portion 21c of stopper 21b, thereby fixing bracket 2 to the structure.

[0040] At the tip end side of stopper 21b opposite to receiving portion 21c, hexagonal cross section portion 21e is formed so that stopper 21b can be rotated with a spanner or wrench.

[0041] An attachment portion 20e having a U-shaped cross section and open at the top is provided on the upper surface of the L-shaped member 20 to be welded and fixed to the main body of the L-shaped member 20, and a bolt hole 20k for attachment is provided in the attachment portion 20e.

[0042] A rubber member 20j is attached to the short portion of the L-shaped member 20 with a bolt, and this rubber member 20j prevents the bracket 2 itself from slipping and prevents damage to the structure.

[0043] The fixing part 13, which is provided with the clamp 22a to be fixed to the frame 1, has horizontal flanges 19 on the top and bottom of the tip of an arm 17 made of a metal square pipe, and these flanges 19 overlap with upper and lower horizontal flanges 18a formed on a clamp bracket 18 to which the clamps 22a are attached in tandem, and a bolted shaft 29 passes through, creating a pivoted structure that allows rotation around the shaft 29 (see Figure 4).

[0044] The fixing portion 13 provided with this clamp 22a on the clamp bracket 18 can be connected to the mounting portion 12 of the L-shaped member 20 by overlapping the arm 17 with the long portion of the L-shaped member 20, fitting it into the mounting portion 20e on the upper surface of the L-shaped member 20, and bolting it by overlapping the mounting bolt holes 20k with the bolt holes 17a formed at appropriate intervals in the arm 17.

[0045] FIG. 2 shows a second embodiment of the present invention, in which an anchor plate 23 is used instead of the mounting portion 12 consisting of the L-shaped member 20 and the gripping member 21.

[0046] The anchor plate 23 has a configuration in which a pair of walls are erected on an anchor base 23b in which bolt holes for inserting anchor bolts are formed, and the pair of walls are formed with bolt holes 23a corresponding to the bolt holes 17a of the fixing part 13 provided with the clamp 22a.

[0047] This anchor plate 23 is used in place of the removed mounting part 12. An anchor bolt is embedded in the structure in advance, and the anchor base 23b is firmly fixed to the anchor bolt through the bolt hole with a nut or the like. Then, the arm 17 of the fixing part 13 equipped with the clamp 22a is attached to this anchor plate 23.

[0048] Parallelize Installed between scaffolding / curing units As a thing, As shown in Figures 6 to 8, Scaffolding / Curing Unit The other end of the arm 25 is provided with the fixing clamp 27. Scaffolding / Curing Unit Of the vertical and horizontal members that make up Frame 1, the vertical members to A guide bracket 24 having a guide portion 26 is installed.

[0049] The fixing clamp 27 is fitted onto the arm 25 and has clamp attachment pieces 27b attached to a sliding sheath pipe 27a, and is provided above and below the clamp attachment pieces 27b.

[0050] Protrusions 30a and 30b for restricting the movement of the sleeve tube 27a are formed on the arm 25. The protrusion 30a is made of a protruding piece, and the protrusion 30b is formed by the head of a through bolt.

[0051] The guide portion 26 is formed by guide plates 26a, 26b whose tips are bent to face each other and have a vertical gap formed therebetween, and these guide plates 26a, 26b can be fastened together at the top and bottom by bolts 28.

[0052] The guide plates 26a and 26b are attached with their ends aligned along square pipes that rise perpendicular to the ends of the arms 25.

[0053] The guide plates 26a and 26b are provided at the top and bottom with guide pieces 26c that are inclined outward.

[0054] Next, we will explain how to use (replace) the scaffolding units. Scaffolding units are usually fixed to a structure. There may arise a situation where construction is (almost) completed and scaffolding units are no longer needed on the lower floors, and then construction on an upper floor requires scaffolding units on the upper floors.

[0055] In this case, the scaffolding unit is moved to an upper floor. First, the frame 1 is suspended by an electric chain block or the like so that it will not fall even if the bracket 2 is released.

[0056] After connecting the electric chain hoist and the scaffolding unit, the gap plate 16 is flipped up and the connection between the mounting part 12 of the bracket 2 to the structure and the fixing part 13 equipped with the clamp 22a that fixes it to the frame 1 is released.

[0057] This can be achieved by releasing the bolts fastened between the mounting bolt hole 20k and the bolt holes 17a formed at appropriate intervals in the arm 17.

[0058] The same applies to the case where the anchor plate 23 is used as in the second embodiment, and the bolt fastening between the bolt hole 17a and the bolt hole 23a of the fixing portion 13 provided with the clamp 22a is released.

[0059] Furthermore, as shown in FIG. 11, a guide bracket 24 is installed between the scaffolding and the protection unit.

[0060] This guide bracket 24 is attached to one unit by a fixing clamp 27, and a guide portion 26 is passed through the vertical member of the other unit so that it can move up and down.

[0061] Furthermore, the fixing portion 13 fixed to the frame 1 tilts the arm 17 inward (towards the structure) and retracts it to a position where it does not interfere with the frame 1 when the frame 1 slides up and down.

[0062] In this state, power is supplied to the electric chain hoist 3 to drive it and slide the frame 1 upward. Naturally, the frame 1 can also be slid downward in the same manner.

[0063] The bracket 2 is raised together with the frame 1, with the fixing portion 13 provided with the clamp 22a, leaving the mounting portion 12 of the bracket 2 to the structure or the anchor plate 23 remaining on the structure.

[0064] At this time, since the vertical members of the frame 1 of one of the scaffolding / curing units are guided by the guide portions 26, the moving unit slides smoothly relative to the remaining unit.

[0065] After sliding the frame 1 to a predetermined position, the fixing portion 13 of the bracket 2 is again connected to the attachment portion 12 of the bracket 2 to the structure or the anchor plate 23 to fix the frame 1 in place.

[0066] Although the above-described embodiment relates to a scaffolding unit, the present invention can also be applied to a curing unit instead of a scaffolding unit. [Explanation of symbols]

[0067] 1...Frame 2...Bracket 3...Electric chain block 10...Net 11...Vertical member 12...Mounting part 13...Fixed part 14...Scaffolding board 15...Guide rail 15a...Stay 15b...Frame side through hole 16...Gap plate 17...Arm 17a...Bolt hole 18...Clamp bracket 18a...Flange 19...Flange 20...L-shaped member 20a... Guide portion 20b... Bolt hole 20e, 20f...Mounting part 20g...Rotating shaft 20h... Lever 20j... Rubber part 20k...Bolt hole 21...Holding member 21a...Bolt hole 21b...Stopper 21c... Receiving part 21d... Nut 21e...Hexagonal section 22...Fixed part 22a...Clamp 23...Anchor plate 23a...Bolt hole 23b...Anchor base 24...Guide bracket 25...Arm 26... Guide portion 26a, 26b... Guide plates 26c... Guide piece 27... Fixing clamp 27a...Sheath tube 27b...Clamp mounting piece 28...Bolt 29...Axis 30a,30b…protrusion

Claims

1. This is a bracket used in a scaffolding unit that is arranged on the outside of the wall of a structure under construction and used as scaffolding or as a protective unit that serves as a mounting frame for fall prevention nets, etc. The bracket is attached to a frame that functions as scaffolding and fixed to the structure, and the mounting part for the structure and the fixing part equipped with a clamp that fixes to the frame are detachable, and further, an arm that is detachable from the mounting part is attached to the clamp mounting bracket equipped with a clamp so that it can rotate.

2. A scaffolding / curing unit as described in claim 1, which is installed between scaffolding / curing units, and which has a guide bracket at the end of an arm equipped with a clamp for fixing to one unit, and which has a guide portion for guiding to the vertical member of the frame of the other unit.

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