JP2008148744A - Thimble enabling replacement of rope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thimble which enables the quick and easy replacement of only a rope. <P>SOLUTION: The thimble comprises a U-shaped band like rope hooking part, a flange part integrally provided outside of both ends of the rope hooking part, and a rope holding part integrally extending outward from the flange part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a thimble for turning and attaching an eye (ring) processing portion of a rope end connected to a safety belt or the like to a rope attachment hole such as a hook, in particular, a rope exchangeable thimble.

In the conventional safety belt, the rope / strap and the hook, etc. are connected according to the safety belt structure guideline, “Measures for preventing the wear of the rope / strap are taken in the connection part”, and D On the ring side, turning by eye processing is accepted as a measure to prevent wear, but on the hook side is not allowed. Therefore, when it is desired to replace only the lanyard rope or the like, the hook has to be structured so that the rope or the like can be replaced. As a result, the hook is not only heavier and larger than a normal product, but also has an adverse effect such as being expensive.
In addition, since a rope or the like cannot be exchanged with a normal hook, the lanyard must be exchanged, and the hook has to be discarded together with the rope.
Furthermore, lanyard ropes etc. usually have to be replaced within 1 to 2 years. However, in the safety belts that cannot be replaced, it is necessary to purchase a new safety belt almost every year, which is uneconomical. there were.
Furthermore, the conventional thimble has a structure in which the rope is pressed from both sides so that the rope does not shift at the end of the thimble. In this structure, if the gap (slit) of the portion that holds the rope is too small, it becomes difficult to pass the rope. As a result, the workability is deteriorated. For this reason, the dimension of the slit of the pressing portion requires a certain degree of dimensional tolerance, and it is necessary to manage the width of the slit.
However, for reasons such as cost reduction, if you use recycled resin instead of virgin resin for injection molding, the slit will be deformed beyond the control dimensions in 3 to 4 months. Since it was not possible and virgin resin had to be used, it was difficult to manufacture at low cost.
Furthermore, by connecting the rope holders on both sides in a blitch shape, there was no need to provide dimensional tolerances, and some recycled plastics could be used with peace of mind. In particular, in the case of ropes, it was extremely difficult to drill holes. In the case of a band rope, the cut surface becomes larger than the cross section of the band rope itself due to fusing, so that it is difficult to pass through and hinders improvement in workability.

  The problem to be solved by the present invention is to provide a rope replaceable thimble that can quickly and easily replace only a rope.

  The rope replaceable thimble according to the present invention includes a U-shaped rope hook portion, a flange portion integrally provided on both outer sides of the rope hook portion, and an integrally extending outward from the flange portion. It is composed of a rope holding piece. Moreover, the latching tool which consists of a pair of latching piece is provided in the edge part of the inner surface of the said rope hooking part, It is characterized by the above-mentioned. Further, the rope holding piece is provided with a hooking tool including a hooking piece and a hooking hole at the tip of the rope holding piece.

The rope replaceable thimble of the present invention has a conventional rope-attached thimble by attaching a rope with eye processing to the tip of the rope and attaching the rope replaceable thimble to the rope hole of the hook. The rope can be changed even with a hook.
The rope replaceable thimble of the present invention uses a rope attachment hole that is also provided in a conventional hook by arranging the ropes side by side in the case of a round rope and vertically stacking the belt rope. And only the rope can be replaced.
In addition, since thimble is used, the handling of the rope can be maintained at the same level of handling as the conventional type in which the rope cannot be replaced, and the wear resistance can be taken.
Furthermore, even if it is not a conventional safety belt for rope replacement, it is sufficient to replace only the rope when replacing for one to two years, and more aggressive safety measures will be taken by reducing the burden on the purchase of the operator. There is an advantage that you can.
Furthermore, a rope holding piece that extends vertically in the form of a plate is provided on both sides of the end of the thimble, and when the rope is attached to the thimble by providing a hook on the rope holding piece, there is no rope holding on both sides. After attaching the rope to the thimble, hold the rope with the right and left rope holding pieces extending vertically on both sides, and hang it with the above-mentioned hooks. By using the same state as that connected to the cable, it is possible to eliminate the trouble of passing the rope through the slit as in the past and the trouble of passing the rope through the part connected to the brich, improving workability and at the time of inventory. Dimensional control for dimensional changes can be omitted, and recycled resin can be used with peace of mind. The ability advance, to allow for various cost savings.

  FIG. 1 is a front view (A), a bottom view (B), and a side view (C) showing one embodiment of a rope-exchangeable thimble according to the present invention, wherein the thimble 1 is a U-shaped rope-hanging portion. 1a, a flange portion 1b that is integrally provided on both outer sides of the rope hook portion 1a, and a rope holding piece 1c that is integrally extended outward from the flange portion 1b. Although the thimble 1 of this embodiment is integrally formed of a synthetic resin, it may be a metal.

  The outer surface of the rope hooking portion 1a has a curved top portion that is hook-shaped, and can be hooked by bending the eye R 'portion of the end of the rope R (see FIG. 2). At the end of the inner surface of the rope hooking portion 1a, a hooking tool comprising a pair of hooking pieces 1a 'and 1a "is provided.

  The flange portion 1b is stretched to prevent the hooked rope R from coming off. In particular, the flange portion 1b portion near the top of the bent portion is, for example, as shown in FIG. The size is such that it can be inserted into the rope hook H.

  As shown in FIG. 2 (C), the rope holding piece 1c has, for example, a flexibility with a reduced thickness so that the rope R can be held from the left and right. At the tip of the rope holding piece 1c, there is provided a hooking tool comprising a hooking piece 1c 'and a hooking hole 1c ".

  Since the rope replaceable thimble of the present embodiment is configured as described above, the thimble 1 is passed through the rope hooking hole H of the hook F as shown in FIG. Subsequently, as shown in FIGS. 3B and 3C, the eye R ′ of the rope R is also passed through the rope hook H, and in order to attach the rope F to the rope hook H of the hook F, first, the thimble 1 is hooked with the rope. Next, the eye R 'is hung on the rope hooking portion 1a of the thimble 1 and the rope R is inserted into the loop portion of the eye R' as shown by the phantom line.

  Next, as shown by phantom lines in FIG. 3 (C), the rope R is held by the rope holding piece 1c of the thimble 1 and fixed by a hook, and as shown in FIG. Attach the rope R to the rope hook H of the hook F. In the present embodiment, a belt rope is used as the rope R, but any cross-sectional shape such as a round rope may be used, and the rope R may be a wire.

It is the front view (A), bottom view (B), and side view (C) which show one Example of the rope exchangeable thimble of this invention. It is explanatory drawing of the state which attached the rope exchangeable thimble of FIG. 1 to the rope hook hole of a hook, Comprising: (A) is a hook front view, (B) is a side view of the thimble attached to the rope hook hole, (C ) Is an II end view of (B). It is explanatory drawing which shows the procedure which attaches the rope exchangeable thimble to the rope hooking hole of a hook.

Explanation of symbols

1 thimble 1a rope hanging portion 1a ′ hanging piece 1a ″ hanging piece 1b flange portion 1c rope holding piece 1c ′ hanging piece 1c ″ hanging hole F hook H rope hanging hole R rope R ′ eye

Claims (3)

A U-shaped rope hook portion, a flange portion integrally provided on both outer sides of the rope hook portion, and a rope holding piece integrally extended outward from the flange portion. Characteristic rope replaceable thimble. The rope replaceable thimble according to claim 1, wherein a hooking tool including a pair of hooking pieces is provided at an end of an inner surface of the rope hooking part. The rope replaceable thimble according to claim 1 or 2, wherein a hooking piece comprising a hooking piece and a hooking hole is provided at the tip of the rope holding piece.