JPH0214944Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an improvement of a holder body for preventing tools from falling, which is attached and used by a worker at a work site in a high place. The holder according to this invention is used by attaching one end to the worker's torso belt and the other end to the tools, so that even if the worker accidentally drops the tools, they will not fall downward. Tools are suspended from the torso belt.

[Conventional technology]

A conventional fall prevention holder consists of a linear holder body with a soft synthetic resin cladding around the core wire, formed into a coil shape, and loops formed at both ends of the holder body. However, metal wires have been exclusively used as the core wires. However, with metal wires used as core wires, the wires may break in a short period of time due to repeated loads or the impact of falling tools, making them useless as holders. It was hot.

[Problem that the invention attempts to solve]

This invention solves the above-mentioned problems by using a strong linear body made of a polymeric material as the core wire. On the other hand, the inventor believed that because there is a difference in elongation between a linear body (core wire) made of a polymeric material and a cladding tube made of soft synthetic resin, a holder using a linear body made of a polymeric material It was learned that during use, each end of the linear body of the loop portion is drawn into the center of the cladding tube independently of the cladding tube, and in order to prevent this phenomenon, a loop formation structure was developed. We have also made improvements.

[Means for solving problems]

The holder for preventing tools from falling according to this invention is characterized by having the following configuration conditions A to F in the conventional holder described above. In other words, the A core wire is made of a strong linear body made of a polymeric material, B the cladding tube is removed at the tip of the loop formed by bending each end of the holder body to expose the core wire, and C the core wire is exposed. Forming a bulge at the tip of the core wire; D. Folding the exposed portion of the core wire back to the loop side and bundling the exposed portion of the core wire together with the center side and tip portion of the holder body; E. The bundled portion. A metal ring is fitted into the core wire so that the bulge portion of the core wire is located on the outside, and
A device that has the following six structural conditions: caulking the metal ring; and F covering the ring with a synthetic resin material to integrally fix the bundled portion together with the ring. It is.

This invention will be explained below based on embodiments shown in the drawings.

In Figures 1 and 2, 1 is a linear holder body with a soft synthetic resin cladding tube 2 surrounding a core wire 3, 4 is a coiled portion in the center of the holder body 1, and 5 and 5 are These are loops formed at both ends of the holder body 1. One loop 5 is attached to an annular metal fitting provided on the torso belt of the worker using this holder, and the other loop 5 is used to attach a spanner or other tools via the annular metal fitting etc. .

In the present invention, as the core wire 3, a strong linear body made of a polymeric material, such as a thread made of a polyester-based or polyamide-based synthetic resin material, or a thin rope, is used. At the tip of the loop 5 formed by bending each end of the holder body 1, the cladding tube 2 is removed to expose a strong core wire 3 made of a polymeric material, and the exposed core wire 3a is A bulge 3b larger than the diameter of the core wire 3 is formed at the tip. The bulging portion 3b may be formed, for example, into a spherical shape by thermal melting.

The exposed portion 3a of the core wire 3 is folded back toward the loop 5 side, and the exposed portion 3a of the core wire 3 is bundled together with the center side 1a and the tip portion 1b of the holder body 1. A metal ring 7 is fitted into the bundled portion 6 so that the bulge 3b of the core wire 3 is located on the outside (loop 5 side), and the metal ring 7 is fitted into the bundled portion 6.
firmly caulk the bundled parts 6, 1a, 1b, and 3a. 7a is a part 6,1 where the metal ring body 7 is bundled
This is a discontinuous portion provided in the ring body 7 to facilitate fitting into the rings 7a, 1b, and 3a.

The periphery of the metal ring 7 caulked to the bundled portion 6 as described above is further covered with a synthetic resin material 8 to integrally fix the bundled portion 6 together with the ring 7. The illustrated covering portion 8 is formed of double covering layers 8a and 8b, with the inside made of a hard synthetic resin material and the outside made of a soft synthetic resin material. good.

In addition, in the figure, the reference numeral 9 indicates a reinforcing tube fitted into the loop 5 of the holder main body 1.

[Effect]

To explain the function of the holder for preventing falls of tools of this invention with the above structure, in its use, the impact when tools fall is absorbed by the strong core wire 3 made of a polymeric material that is resistant to wire breakage. Moreover, the core wire 3 exhibits sufficient strength against repeated loads. Furthermore, in the formation structure of each loop 5, the center side 1a and the tip portion 1b of the holder body 1 are caulked with the metal ring body 7 together with the exposed folded portion 3a of the core wire 3, and the core wire 3 is not exposed. At the tip of the portion 3a, a bulging portion 3b is formed which acts as a stopper for the metal ring 7, so strong tension or the like acts on the holder body 1, causing the core wire 3 made of polymeric material to
Even if the end portion of the cladding tube 2 attempts to be drawn into the cladding tube 2 made of soft synthetic resin, this is reliably prevented.

[Effect of idea]

According to the fall prevention holder for tools of this invention, the resistance against breakage of the core wire 3 due to repeated loads or impacts is large, and the core wire 3 made of a polymeric material is prevented from being drawn into the cladding tube 2. Since this phenomenon is reliably prevented, it is effective for long-term use.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the holder for preventing tools from falling according to the present invention, and FIG. 2 is an enlarged vertical sectional view of the loop portion thereof. 1... Holder body, 1a... Center side, 1b...
...Tip portion, 2...Coating tube, 3...Core wire, 3a...
...Exposed part, 3b...Bulging part, 5...Loop, 6...
...Bundled part, 7...Metal ring body.

Claims (1)

[Claims for Utility Model Registration] A linear holder body 1 is formed into a coil shape, with a core wire 3 surrounded by a cladding tube 2 made of soft synthetic resin.
A holder for preventing tools from falling, comprising loops 5, 5 formed at both ends of the holder body 1, characterized by having the following configuration conditions A, B, C, D, E, and F. A holder to prevent falls. A. Making the core wire 3 a strong linear body made of a polymer material; B. Removing the cladding tube 2 at the tip of the loop 5 formed by bending each end of the holder body 1 to expose the core wire 3. C. Forming a bulge 3b at the tip of the exposed core wire 3a; D. Folding back the exposed portion 3a of the core wire 3 toward the loop 5 side, and folding the exposed portion 3a of the core wire 3 toward the center side of the holder body 1. 1a and the tip portion 1b, E. The bulging portion 3 of the core wire 3 is attached to the bundled portion 6.
Fitting the metal ring 7 such that b is located on the outside and caulking the metal ring 7; To integrally fix the bundled portion 6.