Lower stop device of an anti-pinch zipper and its assembly structure
AssigneeKcc Zipper Co., Ltd.
InventorChun-Yen Chung
Life of this patent
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Abstract
The present invention proposes a lower stop device of an anti-pinch zipper and an assembly structure thereof, which includes a lower stop block and a movable pin for combining two chain fabrics of the anti-pinch zipper. The lower stop block and the movable pin are respectively formed at the lower ends of the two chain fabrics by injection molding. The lower stop block and the movable insert respectively have a groove structure for stabilizing the folded chain tooth belt of the chain fabric, and a support structure for sandwiching the front and back sides of the chain fabric. In this way, the purpose of stabilizing the anti-pinch zipper chain fabric structure and resisting lateral tension can be achieved.
Claims7
A lower stop device for anti-pinch zipper, comprising a lower stop block and a movable pin for combining with the lower ends of the two chain straps of an anti-pinch zipper respectively,
- wherein said lower stop block is used to be combined at a lower end of one chain fabric of the two chain straps of said anti-pinch zipper, said lower stop block comprising integrally a block, a fixed pin, a first support piece, a first chain fabric groove, an insertion slot and a communication slot, two sides of the center line of said block being respectively defined as a first half and a first side, and a second half and a second side, said fixed pin protruding upward from an upper end of said first half, said first support piece being connected at a back side of said block and said fixed pin and protruding laterally from an outer edge of said block and said fixed pin to said first side, a first clamping block being formed on an outer side of said first support piece, said first chain fabric groove being located between said fixed pin and said first support piece and extending downward from an upper end of said fixed pin to an upper end of said block and having a first opening facing the upper end of said fixed pin and said first side, said insertion slot extending downward from an upper end of said second half of said block and providing that said movable pin is inserted into said insertion slot downward from the upper end of said block, said communication slot being located in the second half and extends downward at the position adjacent to said center line and communicating said insertion slot with a back of said block;
- said movable pin is used to combine at the lower end of the other said chain strap, said movable pin comprising integrally formed with a pin body, a second support piece and a second chain fabric groove, said pin body being a strip body corresponding to the cross-sectional shape of said insertion slot, said second support piece being connected at a back side of said pin body and protruding laterally on an outer side of said pin body, said pin body being inserted into said insertion slot so that said second support piece is positioned at said second side of said block, a second clamping block being formed on an outer edge of said second support piece, said second chain fabric groove being formed between said pin body and said second support piece, said second chain fabric groove having a second opening facing an upper end and an outer side of said pin body,
- wherein a first cloth seam is provided between said first support piece and said first clamping block, the chain fabric of one of said two chain straps is accommodated in said first cloth seam, and said first support piece and said first clamping block are connected together by a first connecting pin through the chain fabric;
- a second cloth seam is provided between said second support piece and said second clamping block, the chain fabric of the other of said two chain straps is accommodated in said second cloth seam, and said second support piece and said second clamping block are connected together by a second connecting pin through the other said chain fabric.
An assembly structure of a lower stop device of an anti-pinch zipper comprises an anti-pinch zipper, said anti-pinch zipper comprising two chain straps and a zipper slider that drives said two chain straps to be linked or separated from each other, said two chain straps respectively comprising a chain fabric and a series of teeth, an inner side of each said chain fabric being folded to an outer side toward a front side of said chain fabric to form a chain tooth belt, a sliding space being formed between said chain tooth belt and said chain fabric, the opening side of said sliding space facing an outer edge of said chain fabric, said series of teeth being combined on said chain tooth belt on the front side of said chain fabric, so that said series of teeth is located on the front side of said chain fabric, and the back side of said chain fabric covers said series of teeth;
- wherein said lower stop block is plastic injection molded at the lower end of one of said two chain straps, so that the inner side of said chain fabric and the chain tooth belt thereof are fixed in said first chain fabric groove, said block and said fixed pin are joined in front of said chain tooth belt of said chain fabric, said first clamping block is in close contact with the front of said chain fabric, and the front of said first support piece is in close contact with the back of said chain fabric;
- and said movable pin is plastic injection molded at the lower end of the other said chain fabric, so that the inner side of the other said chain fabric and the chain tooth belt thereof are fixed in said second chain fabric groove, said pin body is joined in front of the chain tooth belt of the other said chain fabric, and the front of said second support piece is closely connected to the back of the other said chain fabric,
- wherein a first cloth seam is provided between said first support piece and said first clamping block, the chain fabric of one of said two chain straps is accommodated in said first cloth seam, and said first support piece and said first clamping block are connected together by a first connecting pin through the chain fabric;
- a second cloth seam is provided between said second support piece and said second clamping block, the chain fabric of the other of said two chain straps is accommodated in said second cloth seam, and said second support piece and said second clamping block are connected together by a second connecting pin through the other said chain fabric.
Dependencies are inferred from the claim text.