A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
24/50
A44B 19/02 (2006.01) A44B 19/36 (2006.01)
Patent
CA 1121139
ABSTRACT OF THE DISCLOSURE An open end type of sliding clasp fastener has an end stop comprising a pair of lugs formed from a plastic material and secured to the longitudinal edges of respec- tive stringer tapes, each lug having an oblique inner edge extending divergently with respect to the longitudinal axis of the fastener such that the lugs define therebetween a substantially V-shaped opening complementary in shape with the diamond of a slider. One of the pair of lugs has at least one projection contiguous to the oblique inner edge and the other lug has a recess receiving the projection. The projection extends transversely beyond the central longit- udinal axis of rows of interengaged fastener elements and is disposed for abutting engagement with the slider diamond. When the diamond moves past the projection and spreads the lugs apart, the uppermost opposed coupling elements become disengaged to allow smooth movement of the diamond there- between. The advance in the art is that when starting the slider in the fastener opening direction, the tendency of the diamond of the slider to impinge upon the endmost or the next to the endmost fastener elements which are still inter- engaged within the channel of the slider is virtually avoided. The starting movement is therefore smoother.
321886
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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