Patent ID: 9125459
Filing Date: 2015-09-08
Classification: A44B

Abstract:
1. An invisible zipper head assembly structure, comprising: a sliding member having a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, and a retaining body, 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 retaining body is movably disposed on the seat portion, the retaining body 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 body; 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.