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Silent Surface Fastener

a surface fastener and silent technology, applied in the direction of snap fasteners, press-button fasteners, buckles, etc., can solve the problems of reducing the peeling strength, generating abnormal noise, and reducing the product value of the surface fastener, so as to suppress the generation of abnormal noise and reduce the vibration of the flat base material

Inactive Publication Date: 2009-01-15
YKK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]The present invention reduces vibration of a flat base material in a surface fastener as much as possible, thereby suppressing generation of an abnormal noise at the time of peeling of the surface fastener.

Problems solved by technology

According to experiments by the inventors, it has been found that an abnormal noise from a surface fastener is generated when engagement between a male engaging element and a female engaging element is released in a base material of the engaged surface fastener, that is, when those engaging elements pull each base material strongly at the time of peeling, and then, when the engagement is released, the pulled base materials are restored to their original states instantly.
However, reduction of the engaging force by reducing the density or strength of the engaging element or reducing the apparent density of the base material itself, or by intensifying the plasticity of the engaging element and / or the base material necessarily leads to lowering of the peeling strength.
A product value as a surface fastener is lost unless a required peeling force is secured.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0171] shown in FIGS. 16 to 18, the magnetic linear material 31 is woven into a non-formation area B in which no engaging elements 12a, 22a are formed, the area B existing in each of the flat base materials 11, 21 of the first and second surface fastener members 10, 20. In this case, no special noise suppressing engaging and disengaging means is adopted for the hook-like male engaging element constituted of monofilament and the loop-like female engaging element 22a constituted of multifilament. Examples of the magnetic linear material 31 include a metal linear material composed of a permanent magnet that is produced by making magnetic metal into a linear material directly and processing it with magnetism, and a resin linear material produced by mixing monofilament of a synthetic resin material with powder having magnetism. The respective magnetic linear materials 31 which magnetically attract each other is permitted to have magnetism or no magnetism. If both of them have magnetism, ...

fourth embodiment

[0184]FIGS. 28 to 31 show the silent surface fastener 1 of the present invention. According to this embodiment, block pieces 33 and projections 34 are provided in a formation area A and / or a non-formation area B for the engaging elements 12, 22 formed on the base materials 11, 21 of the first and second surface fastener members 10, 20. This block piece and projections are formed of synthetic resin. Preferably, they are formed of a soft synthetic resin material such as polyethylene. The first and second surface fastener members 10, 20 are provided with magnetism by mixing magnetic powder directly in the block piece 33 and projection 34, or as shown in FIGS. 32 and 33 by integrating a magnetic piece 35 on the surface of the block piece 33 or projection 34 by bonding, fusion or coating. In the meantime, the height of the block piece 33 or the projection 34 from the flat base material surface is set equal to or slightly lower than the height of peripheral engaging elements 12, 22.

[0185]...

fifth embodiment

[0189]FIG. 34 shows the silent surface fastener 1 of the present invention. According to this embodiment, a first projection 34 made of synthetic resin, as shown in FIG. 32, is provided protrudedly in an area of the fiber-made base material 11 of the first surface fastener member 10, in which no hook-like engaging elements composed of monofilament are formed. A coil 36 made of a metal magnetic linear material is buried in the projection 34. Both ends of the coil 36 are connected to a power supply 37 such as a battery through a switch (not shown).

[0190]On the other hand, a second projection 38 made of synthetic resin is provided protrudedly in an area of a surface of the fiber-made flat base material 21 of the second surface fastener member 20, the area corresponding to the projection 34 of the first surface fastener member 10. A plurality of loop-like engaging elements 22a are formed between these projections 38 so as to form the engaging element formation area A. Magnetic powder is...

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Abstract

The present invention relates to a silent surface fastener, wherein the surface fastener is provided with noise suppressing means and auxiliary engaging and disengaging means, so that even if joining strength necessary for a surface fastener (1) cannot be obtained due to adoption of the noise suppressing means, not only the joining strength necessary for the surface fastener (1) is compensated by the auxiliary engaging and disengaging means, but also only a peeling noise suppressed by the noise suppressing means is generated at the time of peeling of the surface fastener because the auxiliary engaging and disengaging means generates no noise when the engagement of the surface fastener is released, and consequently, only a quiet sound of 80 dB at a maximum is generated.

Description

TECHNICAL FIELD[0001]The present invention relates to a surface fastener and a surface fastener-mounted product equipped with the same surface fastener, and more particularly, to a silent surface fastener which suppresses a noise at the time of peeling.BACKGROUND ART[0002]A relatively large noise is generated when an ordinary surface fastener is peeled off. This abnormal noise is generated because a base material vibrates. A noise is always generated when individual engaging elements are peeled, and it is very difficult to completely prevent the noise from occurring.[0003]As regards a method of reducing a noise at the time of peeling of a surface fastener, for example, two U.S. patent specifications have been publicized. According to one of them, U.S. Pat. No. 4,776,068 (Quiet Touch Fastener Material (1988), patent document 1), propagation of energy into the air is intended to be reduced by adopting a lattice structure in a tape which is a base material of a surface fastener.[0004]T...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A44B18/00
CPCY10T24/27A44B18/0069
Inventor MIZUHARA, HISAYOSHISUGATA, TOMONARI
Owner YKK CORP
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