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Water resistant slide fastener

Inactive Publication Date: 2006-09-21
UNITECH ZIPPER & MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] The primary object of the present invention is to provi

Problems solved by technology

Thus, the slide fastener 1 of this type could not be used in watertight articles.
However, gaps still exist between the joint section of the support tapes 21.

Method used

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  • Water resistant slide fastener

Examples

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first embodiment

[0033] Referring to FIG. 5 through 7, a water resistant slide fastener in accordance with the present invention comprises two supporting members 4 and a row of coupling elements 5 longitudinally provided on each supporting member 4. The supporting members 4 are made of a water resistant material preferably selected from a group consisting of rubber, plastics, and resins to form a flexible structure. Each supporting member 4 includes a first surface 41, a second surface 42 opposite to the first surface 41, and a longitudinal edge 44.

[0034] A row of coupling elements 5 is formed on a longitudinal side of a supporting member 4 for engaging with the other row of coupling elements 5 on the other supporting member 4. More specifically, a portion of each coupling element 5 is formed on the first surface 41 of an associated supporting member 4, forming a first portion 51 of each coupling member 5. Another portion of each coupling element 5 is formed on the second surface 42 of the associate...

second embodiment

[0038]FIG. 10 illustrates the invention. In this embodiment, the supporting members 6 are made of a non-water-resistant material such as polyester fiber cloth. In the illustrated embodiment, the supporting members 6 are made of conventional cloth. A water resistant layer 65 is provided on at least one of the first surface 61 and the second surface 62 of each supporting member 6. The water resistant layer 65 is made of water resistant resin or polyurethane and applied to the supporting member 6. If necessary, the water resistant layer 65 extends to the longitudinal edge 64 of each supporting member 6. When the coupling elements 5 of the supporting members 6 are engaged with each other, the longitudinal edges 64 of the supporting members 6 overlap each other, as shown in FIG. 11. An excellent waterproof effect is thus provided.

third embodiment

[0039]FIGS. 12 and 13 illustrate the invention. In this embodiment, the supporting members 7 are flexible and made of rubber, plastics or resins. Alternatively, the supporting members 7 are made of non-water-resistant material and include a water resistant layer on at least one surface thereof. A row of coupling elements 5 is formed on a longitudinal side of each supporting member 7. Each coupling element 5 includes a first portion 51 on a first surface 71 of an associated supporting member 7, a second portion 52 on a second surface 72 of the associated supporting member 7, and a connecting portion 53 between the first portion 51 and the second portion 52. Each supporting member 7 includes a plurality of through-holes 73 through which the connecting portions 53 of the coupling elements 5 extend, allowing firm bonding between the coupling elements 5 and the supporting member 7. The longitudinal edge 74 of each supporting member 7 extends into the gaps 54 defined between the first por...

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Abstract

A water resistant slide fastener includes two supporting members made of a water resistant material. Each supporting member includes a first surface, a second surface opposite to the first surface, and a longitudinal edge. A plurality of coupling elements are formed on each supporting member. Each coupling element includes a first portion on the first surface of an associated supporting member and a second portion on the second surface of the associated supporting member. The first portion and the second portion of each coupling element extend beyond the longitudinal edge of the associated supporting member and have a gap therebetween. The longitudinal edge of each supporting member extends into the gaps of the coupling elements. The longitudinal edges of the supporting members overlap each other when the coupling elements of the supporting members are engaged with each other.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a slide fastener. In particular, the present invention relates to a water resistant slide fastener. [0003]2. Description of Related Art [0004]FIG. 1 of the drawings shows a typical slide fastener 1 comprising a pair of oppositely disposed tapes 11 each having a row of fastener coupling elements 12 mounted thereto. The tapes 11 may be made of fabrics or plastics and the rows of coupling elements 12 may be made of metal or plastics. Referring to FIG. 2, when the rows of coupling elements 12 are engaged with each other, water or the like is apt to permeate from outer layers of the tapes 11 into bottom layers of the tapes 11 or permeate inward via the gaps 13 of the rows of coupling elements 12. Thus, the slide fastener 1 of this type could not be used in watertight articles. [0005] U.S. Pat. No. 4,888,859 discloses a water-tight slide fastener. As illustrated in FIG. 3 of the drawings, ...

Claims

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Application Information

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IPC IPC(8): A44B19/32
CPCY10T24/2514A44B19/32
Inventor CHENG, JUNG-YUAN
Owner UNITECH ZIPPER & MACHINERY
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