Method for producing hooks on hook-and-loop fasteners

Details Method for producing hooks on hook-and-loop fasteners Method for producing hooks on hook-and-loop fasteners

1986-12-12

1988-08-02

Mackey, Robert R.

Textiles: cloth finishing

Cutting

Pile loops

28161, 139291C, A44B 1800, D06C 1308

Patent

active

047606258

ABSTRACT:
An improved method and apparatus for producing hooks on hook-and-loop fasteners, wherein loops on a loop sheet are cut from the outside thereof on one of the legs thereof near loop heads by reciprocating first movable cutting comb teeth of a first movable blade in a direction perpendicular to the axes of first stationary cutting comb teeth of a stationary blade while the loops are guided along the first stationary cutting comb teeth, thereby producing a hook from each loop thus severed, and then the severed leg of each severed loop is further cut from the outside of the loop near a foundation fabric by reciprocating second movable cutting comb teeth of a second movable blade in a direction perpendicular to the axes of second stationary cutting comb teeth of the stationary blade while the severed leg is held in one of the two adjacent guide grooves defined in the stationary blade.

REFERENCES:
patent: 2933797 (1960-04-01), Mestral
patent: 3616501 (1971-11-01), Waller
patent: 3727433 (1973-04-01), Hamano
patent: 3982309 (1976-09-01), Gilpatrick
patent: 4271568 (1981-06-01), Durville et al.
patent: 4429441 (1984-02-01), Nishiyama et al.

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