Zipper head assembly structure and sliding assembly thereof

Abstract

The prevent invention provides a zipper head assembly structure and a sliding assembly thereof. The zipper head assembly structure includes a sliding assembly and a pulling member. The sliding assembly has a base portion, a seat portion, a cover sheet, a spring component, and a retaining member. The cover sheet is disposed on the seat portion. The spring component is disposed inside the seat portion and between the cover sheet and the retaining member. The retaining member is movably disposed on the seat portion and movably contacts the spring component. The pulling member is movably mated with the retaining member. The spring component has a first contacting side contacting the retaining member and a second contacting side, and the cover sheet has a first end portion contacting the second contacting side and a second end portion separated from the retaining member.

What is claimed is: 
     
         1 . A zipper head assembly structure, comprising:
 a sliding assembly having a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, a cover sheet, a spring component, and a retaining member, wherein the first lateral wall portion and the second lateral wall portion are respectively extended upwardly from two opposite lateral sides of the base portion, the first lateral wall portion and the second lateral wall portion correspond to each other and are connected to a front side portion of the base portion, the seat portion is disposed on the base portion and is connected to a rear side portion of the base portion, the seat portion has a positioning through hole formed between the first lateral wall portion and the second lateral wall portion, the cover sheet is disposed on the seat portion, the spring component is disposed inside the seat portion and between the cover sheet and the retaining member, the retaining member is movably disposed on the seat portion and movably contacts the spring component, and the retaining member has a positioning portion disposed on an end portion thereof and passing through the positioning through hole; and   a pulling member movably mated with the retaining member;   wherein the spring component has a first contacting side directly contacting the retaining member and a second contacting side opposite to the first contacting side, and the cover sheet has a first end portion directly contacting the second contacting side of the spring component and a second end portion opposite to the first end portion and separated from the retaining member.   
     
     
         2 . The zipper head assembly structure of  claim 1 , wherein the first lateral wall portion has a first inner surface and a first outer surface opposite to the first inner surface, the second lateral wall portion has a second inner surface corresponding to the first inner surface and a second outer surface opposite to the second inner surface, a first thickness between the first inner surface and the first outer surface of the first lateral wall portion is smaller than a second thickness between the second inner surface and the second outer surface of the second lateral wall portion, wherein the base portion has a first symmetric center line, the seat portion has a second symmetric center line, the first symmetric center line passes through a geometric center point of the positioning through hole, the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line of the base portion by a predetermined horizontal offset and along a horizontal direction from the second lateral wall portion to the first lateral wall portion, wherein the retaining member has an embedded portion opposite to the positioning portion and disposed inside a receiving groove of the seat portion and a concave abutting portion disposed between the positioning portion and the embedded portion and directly contacting the first contacting side of the spring component, and the first end portion of the cover sheet has a position-limiting groove for receiving the second contacting side of the spring component. 
     
     
         3 . The zipper head assembly structure of  claim 2 , wherein the predetermined horizontal offset from the second symmetric center line of the seat portion to the first symmetric center line of the base portion conforms to the following formula: S=(H 2 −H 1 )/2, wherein S is the predetermined horizontal offset, H 1  is the first thickness, and H 2  is the second thickness, wherein the first outer surface of the first lateral wall portion and the second outer surface of the second lateral wall portion are symmetrically disposed relative to the first symmetric center line, the first inner surface of the first lateral wall portion and the second inner surface of the second lateral wall portion are symmetrically disposed relative to the second symmetric center line, wherein the positioning portion of the retaining member has a cutting edge concaved on a lateral surface thereof and along an opposite direction opposite to the horizontal direction, so that the positioning portion is diverged from the second symmetric center line and adjacent to the first symmetric center line, wherein the first inner surface of the first lateral wall portion is divided into a first primary inner surface and a first secondary inner surface, and the second inner surface of the second lateral wall portion is divided into a second primary inner surface facing the first primary inner surface and a second secondary inner surface facing the first secondary inner surface, wherein a first primary thickness between the first primary inner surface and the first outer surface of the first lateral wall portion is smaller than a second primary thickness between the second primary inner surface and the second outer surface of the second lateral wall portion, and a first secondary thickness between the first secondary inner surface and the first outer surface of the first lateral wall portion is smaller than a second secondary thickness between the second secondary inner surface and the second outer surface of the second lateral wall portion. 
     
     
         4 . A sliding assembly comprising: a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, a cover sheet, a spring component, and a retaining member, wherein the first lateral wall portion and the second lateral wall portion are respectively extended upwardly from two opposite lateral sides of the base portion, the first lateral wall portion and the second lateral wall portion correspond to each other and are connected to a front side portion of the base portion, the seat portion is disposed on the base portion and is connected to a rear side portion of the base portion, the seat portion has a positioning through hole formed between the first lateral wall portion and the second lateral wall portion, the cover sheet is disposed on the seat portion, the spring component is disposed inside the seat portion and between the cover sheet and the retaining member, the retaining member is movably disposed on the seat portion and movably contacts the spring component, and the retaining member has a positioning portion disposed on an end portion thereof and passing through the positioning through hole;
 wherein the spring component has a first contacting side directly contacting the retaining member and a second contacting side opposite to the first contacting side, and the cover sheet has a first end portion directly contacting the second contacting side of the spring component and a second end portion opposite to the first end portion and separated from the retaining member.   
     
     
         5 . The sliding assembly of  claim 4 , wherein the first lateral wall portion has a first inner surface and a first outer surface opposite to the first inner surface, the second lateral wall portion has a second inner surface corresponding to the first inner surface and a second outer surface opposite to the second inner surface, a first thickness between the first inner surface and the first outer surface of the first lateral wall portion is smaller than a second thickness between the second inner surface and the second outer surface of the second lateral wall portion, wherein the base portion has a first symmetric center line, the seat portion has a second symmetric center line, the first symmetric center line passes through a geometric center point of the positioning through hole, the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line of the base portion by a predetermined horizontal offset and along a horizontal direction from the second lateral wall portion to the first lateral wall portion, wherein the retaining member has an embedded portion opposite to the positioning portion and disposed inside a receiving groove of the seat portion and a concave abutting portion disposed between the positioning portion and the embedded portion and directly contacting the first contacting side of the spring component, and the first end portion of the cover sheet has a position-limiting groove for receiving the second contacting side of the spring component. 
     
     
         6 . The sliding assembly of  claim 5 , wherein the predetermined horizontal offset from the second symmetric center line of the seat portion to the first symmetric center line of the base portion conforms to the following formula: S=(H 2 −H 1 )/2, wherein S is the predetermined horizontal offset, H 1  is the first thickness, and H 2  is the second thickness, wherein the first outer surface of the first lateral wall portion and the second outer surface of the second lateral wall portion are symmetrically disposed relative to the first symmetric center line, the first inner surface of the first lateral wall portion and the second inner surface of the second lateral wall portion are symmetrically disposed relative to the second symmetric center line, wherein the positioning portion of the retaining member has a cutting edge concaved on a lateral surface thereof and along an opposite direction opposite to the horizontal direction, so that the positioning portion is diverged from the second symmetric center line and adjacent to the first symmetric center line, wherein the first inner surface of the first lateral wall portion is divided into a first primary inner surface and a first secondary inner surface, and the second inner surface of the second lateral wall portion is divided into a second primary inner surface facing the first primary inner surface and a second secondary inner surface facing the first secondary inner surface, wherein a first primary thickness between the first primary inner surface and the first outer surface of the first lateral wall portion is smaller than a second primary thickness between the second primary inner surface and the second outer surface of the second lateral wall portion, and a first secondary thickness between the first secondary inner surface and the first outer surface of the first lateral wall portion is smaller than a second secondary thickness between the second secondary inner surface and the second outer surface of the second lateral wall portion. 
     
     
         7 . A zipper head assembly structure, comprising:
 a sliding assembly having a base portion, a seat portion, a cover sheet, a spring component, and a retaining member, wherein the seat portion is disposed on the base portion, the seat portion has a positioning through hole, the cover sheet is disposed on the seat portion, the spring component is disposed inside the seat portion and between the cover sheet and the retaining member, the retaining member is movably disposed on the seat portion and movably contacts the spring component, and the retaining member has a positioning portion disposed on an end portion thereof and passing through the positioning through hole; and   a pulling member movably mated with the retaining member;   wherein the spring component has a first contacting side directly contacting the retaining member and a second contacting side opposite to the first contacting side, and the cover sheet has a first end portion directly contacting the second contacting side of the spring component and a second end portion opposite to the first end portion and separated from the retaining member.   
     
     
         8 . The zipper head assembly structure of  claim 7 , wherein the base portion has a first symmetric center line, the seat portion has a second symmetric center line, the first symmetric center line passes through a geometric center point of the positioning through hole, the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line of the base portion by a predetermined horizontal offset and along a horizontal direction, wherein the retaining member has an embedded portion opposite to the positioning portion and disposed inside a receiving groove of the seat portion and a concave abutting portion disposed between the positioning portion and the embedded portion and directly contacting the first contacting side of the spring component, and the first end portion of the cover sheet has a position-limiting groove for receiving the second contacting side of the spring component. 
     
     
         9 . The zipper head assembly structure of  claim 8 , wherein the positioning portion of the retaining member has a cutting edge concaved on a lateral surface thereof and along an opposite direction opposite to the horizontal direction, so that the positioning portion is diverged from the second symmetric center line and adjacent to the first symmetric center line. 
     
     
         10 . The zipper head assembly structure of  claim 7 , wherein the zipper head assembly structure is disposed on a zipper teeth structure including a first zipper teeth member and a second zipper teeth member mated with each other, the first zipper teeth member includes a first zipper teeth carrier and a plurality of first zipper teeth disposed on the first zipper teeth carrier, the second zipper teeth member includes a second zipper teeth carrier and a plurality of second zipper teeth disposed on the second zipper teeth carrier, and one of the first zipper teeth is retained between two of the second zipper teeth to form a gap for receiving the positioning portion.