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US 12,274,334 B2Granted
Stop member of slide fastener and method of producing slide fastener
AssigneeYKK Corporation
InventorsTiantian Feng, Kazuo Tamura, Shintaro Metani, Atsushi Takata
Life of this patent
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Abstract
Stop member for slide fastener includes: a main body having first and second surfaces; a first superficial region formed at a side of the first surface of the main body; and a slit or interface interposed between the first and second surfaces of the main body. The first superficial region extends over and covers the slit or interface, and has a thickness defined between the first surface and an end of the slit or interface at the side of the first surface.
Claims13
A stop member for slide fastener, the stop member comprising:
- a main body having first surface, second surface, third surface and fourth surface, the first and second surfaces being on opposite sides, and the third and fourth surfaces being on opposite sides;
- a first superficial region formed at a side of the first surface of the main body;
- a second superficial region formed at a side of the second surface of the main body;
- and
- a slit or interface interposed between the first and second surfaces of the main body, wherein
- the first superficial region extends over and covers the slit or the interface, and has a thickness defined between the first surface and an end of the slit or the interface at the side of the first surface, and
- the second superficial region extends over and covers the slit or the interface, and has a thickness defined between the second surface and an end of the slit or the interface at the side of the second surface,
- the stop member further comprising:
- a third superficial region formed at a side of the third surface to prevent at least a part of the slit or the interface from being exposed in the third surface, and
- a fourth superficial region formed at a side of the fourth surface to prevent at least a part of the slit or the interface from being exposed in the fourth surface.
7 more elements
A method of producing a slide fastener, the method comprising:
- injection molding at least one first resin portion, which will be a part of a stop member, to a side-edge portion of a first fastener tape;
- injection molding at least one second resin portion, which will be a remaining part of the stop member, to a side-edge portion of a second fastener tape;
- arranging the first and second resin portions in a cavity of a mold to form a slit between the first and second resin portions;
- heating the mold to melt superficial regions of the first and second resin portions in the cavity of the mold such that the slit is partially filled by melted resin of the superficial regions;
- and
- cooling the mold to form the stop member that has a slit or interface covered by at least one superficial region made of a solidified resin of the melted resin.
3 more elements
Dependencies are inferred from the claim text.