| 摘要 |
A zipper head assembly for increasing torsional strength includes a sliding member, a latch hook member, a pulling member, a tab holder main body, and an elastic member. The sliding member has a first sliding portion, a second sliding portion, and a connecting portion connected between the first sliding portion and the second sliding portion. The first sliding portion has a first supporting body and a second supporting body corresponding to the first supporting body. An arc-shaped outer surface that is concave downwards is provided on the top end of the first sliding portion. The latch hook member is disposed to function on the first supporting body and the second supporting body. An axial pivoting portion that is disposed to function between the latch hook member and the arc-shaped surface of the first sliding portion is provided on one terminal end of the pulling member. The tab holder main body is disposed on the first supporting body and the second supporting body and covers the latch hook member. The elastic member is disposed between an inner surface of the tab holder main body and the latch hook member. According to the present invention, the torsional strength of the pulling member is increased based on the design of the arc-shaped outer surface. |
