JP3227314B2 - Curled string - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curled string.

[0002]

2. Description of the Related Art As shown in FIG. 3, a curled cord (also referred to as a curl cord) 20, which is formed by spiraling a cord, is provided so that a brush tool 21 such as a pencil placed in a public facility is not lost. One end is attached to a writing implement, and the other end is fixed to a desk or the like. In addition, it is widely used to connect a key or something that is easily lost to another thing or to connect between a thing and a hand. Such a curled string is expanded and contracted and stretched when pulled, and contracted and shortened when released.

[0003]

However, the conventional curled string is easy to cut and has poor resilience, and when used, it stretches out immediately and cannot return to its original state.
Therefore, urethane resins and the like having relatively resilience have been used.

In the case of a curled string made of a synthetic resin containing a urethane resin, it is necessary to form a ring so that both ends can be connected to a connecting member or a connecting fitting, and therefore, as shown in FIG. The end 22 is heat-sealed using a heat-sealing device or the like to form a ring. However, since this work is manual work, work efficiency is extremely poor.

In order to perform heat fusion, urethane resins having a low heat fusion temperature are used. However, urethane resins having a low mature fusion temperature have low hardness and therefore have low spring properties, and when stretched, lose their original properties. There is a disadvantage that it is difficult to return to the length.
Therefore, if you try to give the spring property, the diameter of the wire is 5m
The diameter of the curl becomes as thick as, for example, 2 cm.

On the other hand, recently, from the viewpoint of design, a curl having a small diameter is required, and there is a demand for attaching a curled string to a small hole (for example, a straight line of 2 mm). Strings could not pass directly through the small holes.

An object of the present invention is to provide a curled string which can be passed through a hole having a small and small curl diameter, is durable without breaking, and has good resilience.

[0008]

According to the present invention, a curled string is formed by spirally curling a synthetic resin wire containing a synthetic fiber core into an end portion of a curled portion. A resin end member is fixed with an adhesive, and both ends of a loop-shaped connecting member made of a synthetic resin wire are fixed to the end member with an adhesive.

The curled portion, the end member and the connecting member may be made of the same material such as a urethane resin. Further, the connecting member may contain a core material made of synthetic fiber.

Further, the end member has a hole or a small-diameter portion, and both ends of the loop-shaped connecting member are inserted into the hole and fixed with an adhesive, or the small-diameter portion is inserted into the end of the curled portion and adhered. You may make it fix with an agent.

[0011]

The curl portion is extendable and contractable, and connects the objects to be connected to the connecting members at both ends.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS.
The vehicle includes a curled portion 2, an end member 3 fixed to both ends of the curled portion 2, and a connecting member 4 fixed to the end member 3. The length of the string 1 is, for example, 20 cm, the length of the curled portion 2 is 14 cm, and the wire 1 is made of a wire having a diameter of 3 mm. The curled portion 2 is made of a urethane resin having high hardness, and contains a core material 5 having a diameter of, for example, 1.5 mm made of synthetic fibers such as aramid fibers. As the core material, a metal wire such as an iron wire or stainless steel can be used. However, in the case of a metal wire, once the curled portion is stretched, the curled portion has a tendency to stretch, and the restoration to the original state is not good.

The end member 3 is cylindrical and made of the same material as the curled portion 2 in the embodiment, but may be made of a different material. A small-diameter portion 6 having a small diameter is shelled on the end member 3, and the small-diameter portion 6 is inserted into the end of the curled portion 2 and fixed with an adhesive. The end member 3 is provided with two holes 7, into which both ends of the loop-shaped connecting member 4 are inserted and fixed with an adhesive. After passing the connecting member 4 through the hole of the object attached to the curled string 1, the end member 3
May be fixed.

The connecting member 4 is a wire having a diameter of 2 mm and made of, for example, urethane resin, and contains a core material 8 having a diameter of 1 mm made of synthetic fiber such as aramid fiber.

Although a wire having a diameter of 1 to 3 mm is used as the wire material of the curled portion 2 and the connecting member 4, the material is not limited to this, and a thinner or thicker wire may be used. .

[0016]

The curled string of the present invention has a curled portion,
All of the end member and the connecting member are made of a synthetic resin, are fixed to each other by an adhesive, and are not subjected to heat fusion.

In the curled cord of the present invention, since the core material made of synthetic fiber is contained in the curled portion or the wire constituting the curled portion and the connecting member, the wire can be made thin, has a restoring force, and is hard to be cut. It is possible to prevent stretching and to reduce the diameter of the curled portion.

Since the curled portion and the connecting member are separate members, the connecting member can be made thinner than the wire of the curled portion, and the curled string can be connected to an object having a thin hole.

Further, when the end member has a hole, and the both ends of the loop-shaped connecting member are inserted into the hole and fixed with an adhesive, the connecting member is fixed with the adhesive in a surface-contact state. It is firmly connected to the member.

When a small-diameter portion is provided in the end member, and the small-diameter portion is inserted into the end of the curled portion and fixed with an adhesive, the end member is fixed with an adhesive in a surface-contact state. It is firmly connected by the shape.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of a curled string of the present invention.

FIG. 2 is an enlarged view of FIG.

FIG. 3 is a diagram showing an end of a conventional curled string.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Curled string 2 Curled part 3 End member 4 Connecting member 5 Core material 6 Small diameter part 7 Hole 8 Core material

Claims (6)

(57) [Claims] An end member made of synthetic resin is fixed with an adhesive to an end of a curled portion formed by spirally curling a synthetic resin wire rod containing a core material made of synthetic fiber, A curled string, wherein both ends of a loop-shaped connecting member made of a synthetic resin wire are fixed to the end member with an adhesive. 2. The curled cord according to claim 1, wherein the curled portion, the end member and the connecting member are made of the same material of synthetic resin. 3. The curled cord according to claim 2, wherein the curled portion, the end member, and the connecting member are made of urethane resin. 4. The curled cord according to claim 1, wherein the connecting member contains a core material made of synthetic fiber. 5. The curl-shaped member according to claim 1, wherein a hole is provided in the end member, and both ends of the loop-shaped connecting member are inserted into the hole and fixed with an adhesive. string. 6. The curled shape according to claim 1, wherein the end member has a small diameter portion, and the small diameter portion is inserted into an end of the curled portion and fixed with an adhesive. String.