Chain clamp curing material

Abstract

To provide a curing material that protects a chain clamp from flying paints and abrasives.SOLUTION: A curing material 20 is configured from a clamp cover unit 22 that covers a clamp upper part 14a positioned above a flange 12, a chain cover unit 24 that covers a clamp lower part 14b positioned below the flange 12 and a chain 18 suspended from a clamp, and a connecting unit 26 that connects the clamp cover unit 22 and the chain cover unit 24, the clamp cover unit 22 is formed into a bag-like body attached so as to cover the clamp upper part 14a, and the chain cover unit 24 is formed into a belt-like body attached so as to wrap around the clamp lower part 14b and the chain 18.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] This technology relates to a protective material that protects a chain clamp from flying paint or abrasives. [Background technology]

[0002] Painting and blasting work at high altitudes requires scaffolding as a work platform. There are two widely used methods for setting up scaffolding: assembling it from the ground up, and hanging it from an existing structure. When using hanging scaffolding, a chain is fastened to the flange of an existing steel beam using a hanging scaffolding clamp, a single pipe is hung horizontally from the bottom end of the hanging chain, and the scaffolding is laid on top of it.

[0003] During painting work, paint drips and splashes are unavoidable, so measures such as laying protective sheets on scaffolding are taken. The same applies to blasting work, in which abrasives and paint debris fly around. There are special protective materials on the market that are wrapped around and covered for single-tube pipes. Maskers, which have long been used as this type of protective material, are inexpensive and easy to obtain, so they are widely used to protect a variety of materials, including single-tube pipes. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-33478 A Summary of the Invention [Problem to be solved by the invention]

[0005] Although masking is simple, it lacks durability and weather resistance, making it unsuitable for long-term construction work. Furthermore, masking that has paint or other substances on it must be disposed of as industrial waste. Furthermore, skilled techniques are required to neatly cover components with complex shapes such as clamps and chains in a short time. If an inexperienced person does the covering, not only will it become useless as it tears and peels off over time, but it will also significantly impair the appearance of the construction site. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides the following means.

[0007] A first aspect of the present invention is a protective material that covers a chain clamp for suspended scaffolding to protect it from flying paint and abrasives, and comprises a clamp covering part that covers the upper part of the clamp located above a flange that secures the chain clamp, a chain covering part that covers the lower part of the clamp located below the flange and the chain suspended from the clamp, and a connecting part that connects the clamp covering part and the chain covering part, the clamp covering part being formed into a bag-like body that is attached by placing it over the upper part of the clamp, and the chain covering part being formed into a band-like body that is attached by wrapping it around the lower part of the clamp and the chain.

[0008] A second aspect of the present invention is the first aspect, wherein the clamp covering portion is formed in a bag shape having an opening provided at a lower portion.

[0009] A third aspect of the present invention is a structure according to the first or second aspect, in which an elastic material is arranged in the connecting portion, and when a tensile force is applied to the connecting portion, the clamp covering portion and the chain covering portion are displaced relative to each other. Effect of the Invention

[0010] According to the first aspect of the present invention, it is possible to provide protection for the chain clamp for suspended scaffolding above and below the flange in a manner suitable for each shape, making it easy to attach and detach without any strain, and the entire chain clamp can be effectively covered when attached.

[0011] According to the second aspect of the present invention, the clamp covering part can be attached simply by placing it over the top. After the clamp covering part is placed, the chain covering part is attached while pulling it down, so that the opening of the clamp covering part fits tightly against the top surface of the flange, completely covering the top of the clamp.

[0012] According to the third aspect of the present invention, it is possible to change the relative positions of the clamp covering part and the chain covering part in accordance with the thickness of the flange, thereby eliminating problems such as difficulties in installation caused by differences in flange thickness and gaps occurring due to deformation after installation. [Brief description of the drawings]

[0013] [Figure 1] Diagram showing the chain clamp attached to the flange [Diagram 2] A diagram showing the protective material laid out on a flat surface [Diagram 3] A diagram showing the chain clamp covered with protective material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] An embodiment of the present invention will be described with reference to the accompanying drawings. Figure 1 shows a state in which a chain clamp is attached to a flange, Figure 2 shows a state in which the protective material is laid out on a flat surface, and Figure 3 shows a state in which the chain clamp is covered with the protective material.

[0015] [Chain clamp structure] Figure 1 shows the state in which the chain clamp is attached to a flange. The chain clamp 10 is composed of a clamp part 14 that vertically clamps a flange 12 of a steel beam, a U-shaped metal fitting 16 pivotally supported at the bottom of the clamp part 14, and a chain 18 hooked onto the U-shaped metal fitting 16. An upper part 14a of the clamp part 14 to which a tightening screw 20 is attached is located above the flange 12, and a lower part 14b to which the U-shaped metal fitting 16 is attached is located below the flange 12. Since there are a wide variety of flanges 12 with different thicknesses, the gripping thickness of the clamp part 14 is adjusted (approximately 6mm to 40mm) by the tightening screw.

[0016] [Structure of protective material] The protective material 20 is composed of a clamp covering part 22, a chain covering part 24, and a connecting part 26 that connects the clamp covering part 22 and the chain covering part 24. The protective material 20 is made of resin such as polypropylene processed into a sheet shape, the clamp covering part 22 and the chain covering part 24 are made of a polypropylene sheet, and the connecting part 26 is made of a polypropylene sheet and rubber enclosed in the polypropylene sheet.

[0017] Since the connecting portion 26 is required to expand and contract in response to the thickness of the flange 12, it is necessary for the portion enclosing the rubber to have a certain degree of slack. The length is adjusted so that it can accommodate the maximum thickness of the flange 12 (approximately 40 mm) when the slack is fully expanded. The rubber plays a role in ensuring that the protective material 20 covers the chain clamp 10 as tightly as possible by closely adhering the clamp covering portion 22 to the upper surface of the flange 12 and the chain covering portion 24 to the lower surface of the flange 12. Therefore, the length is adjusted so that it can accommodate the minimum thickness of the flange 12 (approximately 6 mm).

[0018] The clamp covering part 22, the chain covering part 24 and the connecting part 26 are connected to each other by means of thermocompression, adhesion, sewing, etc. The connecting part 26 may be made of a polypropylene sheet that is continuous with the clamp covering part 22, or may be made of a polypropylene sheet that is continuous with the chain covering part 22.

[0019] The clamp covering part 22 is formed in a bag shape with an opening 28 provided at the bottom. With the opening 28 open, it is attached to the clamp upper part 14a from top to bottom to cover the part of the chain clamp 10 located above the flange 12.

[0020] The chain covering part 24 is formed in a band-like body. It is attached so as to be wrapped around the clamp lower part 14b and the chain 18 at the same time, thereby covering the part of the chain clamp 10 located below the flange 12. Hook-and-loop fasteners 30 are attached to both the left and right ends of the chain covering part 24, and after wrapping it around the clamp lower part 14b and the chain 18, the hook-and-loop fasteners 30 are used to secure the polypropylene sheet so that it does not open.

[0021] [How to use protective materials] First, a method for attaching the protective material 20 to the chain clamp 10 will be described, and then a method for removing the attached protective material 20 from the chain clamp 10 will be described.

[0022] When attaching the protective material 20, first open the opening 28 provided below the clamp covering part 22 and attach it so that it covers the clamp upper part 14a from above, then wrap the chain covering part 24 around the clamp lower part 14b and the chain 18 while pulling it downward according to the thickness of the flange 12, and finally secure it with the hook-and-loop fastener 30. An experienced worker can attach the protective material 20 to the chain clamp 10 in a few to a dozen seconds.

[0023] Next, the method for removing the protective material 20 from the chain clamp 10 is the reverse of the procedure for installation. First, the hook-and-loop fastener 30 is peeled off to release the chain covering 24 from the state in which it is wrapped around the clamp lower part 14b and the chain 18, and then the clamp covering part 22 is lifted and released from covering the clamp upper part 14a. At this time, the chain covering part 24 may get caught on the flange 12 and prevent the clamp covering part 22 from being lifted, so if the chain covering part 24 is pulled towards you, the clamp covering part 22 can be lifted easily. As with installation, an experienced worker can remove the protective material 20 from the chain clamp 10 in a few to a dozen seconds.

[0024] Since paint or the like will be attached to the protective material 20 removed from the chain clamp 10, the protective material 20 can be reused by wiping off the paint or the like using a dedicated solvent or the like. [Explanation of symbols]

[0025] 10 Chain clamp 20 Curing material 22 Clamp coating 24 Chain sheath 26 Connecting part 28 Opening

Claims

1. This is a protective material that protects chain clamps for suspended scaffolding from flying paint and abrasives by covering them. a clamp covering part that covers an upper part of the clamp located above a flange that fixes the chain clamp; a chain covering part that covers a clamp lower part located below the flange and a chain suspended from the clamp; A connecting portion is provided to connect the clamp covering portion and the chain covering portion, The clamp covering portion is formed into a bag-like body that is attached so as to cover the upper part of the clamp, The chain covering portion is formed into a band-like body that is attached by wrapping it around the lower part of the clamp and the chain. Curing material.

2. The clamp covering portion is formed into a bag-like body having an opening at a lower portion. The curing material according to claim 1.

3. An elastic material is disposed in the connecting portion, and the clamp covering portion and the chain covering portion are displaced relative to each other when a tensile force is applied to the connecting portion. The curing material according to claim 1 or 2.

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