JPH04126044U - compression coil spring - Google Patents

Abstract

(57) [Summary] [Purpose] This invention addresses the drawbacks of conventional compression coil springs, which tend to sneak into each other's pitches and get tangled in an overlapping manner, making work extremely inefficient. The purpose is to prevent coil springs from becoming entangled and to provide efficient work. [Structure] By providing at least one close winding portion 1 in which the close winding portion dimension D1 is larger than the pitch P1 at both ends of the coil spring and at least one other place, two or more coil springs can slip into each other between the pitches P1. This prevents them from getting tangled and overlapping.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a compression coil spring whose pitch is larger than the wire diameter of the material.

0002

[Conventional technology]

As shown in Fig. 2, the conventional pressure In a compressed coil spring, the tightly wound portions 2 are provided only at both ends of the spring. deer However, in this tightly wound portion 2, the tightly wound portion dimension D2 was smaller than the pitch P2.

0003

[Problem that the idea aims to solve]

However, in the prior art described above, as shown in FIG. 3, the pitch P2 is the wire diameter d of the material. Because it is larger, the wire diameter section d fits between the pitch P2, and the close winding section dimension D2 further increases. Since the pitch is smaller than P2, two or more coil springs are connected to each other between pitch P2. This has the problem that they can get mixed up and overlap each other. Ta. This allows you to avoid overlapping coil springs when using coil springs. It is necessary to unravel each piece one by one, making the work extremely inefficient. was. Also, when unraveling the coil spring, the coil spring may be deformed, resulting in defective products. was causing

0004 This invention was made to solve these drawbacks, and it is a coil spring. The purpose is to prevent entanglement and provide efficient work.

[0005]

[Means to solve the problem]

The compression coil spring of this invention has a compression coil whose pitch is larger than the wire diameter of the material. In coil springs, tightly wound portions larger than the pitch are placed at both ends of the spring and beyond. It is characterized by having at least one location outside.

[0006]

【Example】 FIG. 1 is a front view of a compression coil spring in an embodiment of the present invention.

[0007] Closely wound portions 1 are provided at three locations at both ends and the center of the coil spring, and the tightly wound portion dimension D1 is provided so that it is larger than the pitch P1.

[0008] In other words, as shown in Fig. 2, in the conventional compression coil spring, the tightly wound portion 2 is tightly wound. Since the winding part dimension D2 is smaller than the pitch P2, as shown in FIG. It is easy to sneak into the coil springs, and the coil springs overlap and get tangled. In the embodiment, the tight winding portion 1 has a tight winding portion dimension D1 larger than the pitch P1. Therefore, even if the wire diameter d portions enter between the pitches P1, there will be no close winding. 1 prevents the coil springs from slipping between the pitches P1 and Prevents tangling.

[0009] In addition, in this example, one tightly wound portion is provided at both ends of the coil spring and at the center. However, due to the natural length of the coil spring, there is one or more places on both ends of the coil spring and in the middle. Even if the upper tightly wound portion is provided, tangling of the coil springs can be similarly prevented.

0010

[Effect of the idea]

As described above, according to the present invention, the pitch is larger than the wire diameter of the material. In compression coil springs, tightly wound portions larger than the pitch are placed at both ends of the spring. By providing at least one other location, two or more coil springs can be connected to each other. The problem is that the pitches sneak into each other and become tangled in an overlapping manner. This eliminates the issue of overlapping coils when using coil springs. Since there is no need to loosen the springs one by one, the work becomes much easier. It has the effect of making it more efficient.

[Brief explanation of drawings]

FIG. 1 is a front view of a compression coil spring showing an embodiment of the present invention.

FIG. 2 is a front view of a compression coil spring showing an example of the prior art.

FIG. 3 is a diagram illustrating how a compression coil spring, which is an example of the prior art, is easily entangled.

[Explanation of symbols]

1 Tight winding section 2 Closely wound part D1 Closely wound part dimensions P1 pitch D2 Closely wound part dimensions P2 pitch d Material wire diameter

Claims (1)

[Scope of utility model registration request] 1. A compression coil spring whose pitch is larger than the wire diameter of the material, characterized in that a tightly wound portion whose pitch is larger than the pitch is provided at both ends of the spring and at least one other place. .