Apparatus for producing a coupling element assembly for slide fa

Details Apparatus for producing a coupling element assembly for slide fa Apparatus for producing a coupling element assembly for slide fa

1979-05-22

1981-02-24

Combs, Ervin M.

Metal working

Means to assemble or disassemble

Slide fastener

226 77, 226 87, 425545, 425814, B29D 500

Patent

active

042519128

ABSTRACT:
A warp-knit elongate structure is provided which has a pair of spaced warp-knit elongate webs and a plurality of transverse thread portions spaced longitudinally of and interconnecting the warp-knit elongate webs. The shape of the warp-knit structure is corrected into a ladder-like structure and then is introduced into an elongate mold cavity, in which synthetic resin is molded around the portion of the warp-knit webs and the transverse thread portion which are disposed in the mold cavity. A molded product that constitutes a portion of a coupling element assembly is separated from the mold cavity, and is bent about its transverse central axis into the shape of a U. A guide drum is disposed adjacent to a molding wheel for guiding the warp-knit structure onto the molding wheel and for rectifying the shape of the warp-knit structure into a ladder-like structure.

REFERENCES:
patent: 3197575 (1965-07-01), Eckstein
patent: 3445915 (1969-05-01), Cuckson et al.
patent: 3836413 (1974-09-01), Frohlich et al.
patent: 4033014 (1977-07-01), Manning
patent: 4115489 (1978-09-01), Macfee
patent: 4137034 (1979-01-01), Moertel
patent: 4158532 (1979-06-01), Kowalski
patent: 4175104 (1979-11-01), Moertel
patent: 4182600 (1980-01-01), Moertel

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