A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
24/70
A44B 17/00 (2006.01)
Patent
CA 1187676
ABSTRACT OF THE DISCLOSURE A snap fastener for used on garment pieces comprises a male member attached by a first rivet to one of the garment pieces and a female member attached by a second rivet to the other garment piece. The male member includes a first cylindrical wall having an annular rim snapped in an annular groove defined in a second cylindrical wall of the female member. The male member and the first rivet have reinforcing ribs biting in the garment piece sandwiched therebetween, and similarly the female member and the second rivet have reinforcing ribs held in biting engagement with the garment sandwiched therebetween. The male and female members, and the first and second rivets are prevented by these reinforcing ribs from rotating with respect to the garment pieces, an advantage which manifests itself especially where the first and second rivets have directional ornamental patterns on their heads. The first and second cylindrical walls of the male and female members have slots and cavities to allow the annular rim to resiliently fit snappingly into the annular groove without cracking or deforming the male and female members. The first and second rivets have pointed shanks piercing the garment pieces and fitted in the male and female members, respectively. The pointed shanks have angularly spaced ridges held in frictional engagement with the male and femal members to prevent backlashes between the first and second rivets and the male and female members. The advance in the art is in that the invention provides a snap fastener which, when attached to a garment, is free from backlashes and is not subject to unwanted rotation with respect to the garment. A further advantage is in that the snap fastener has a relatively long service life.
417104
Gowling Lafleur Henderson Llp
Nippon Notion Kogyo Co. Ltd.
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