Method of producing elastic wiping blade for windshield wiper of

Details Method of producing elastic wiping blade for windshield wiper of Method of producing elastic wiping blade for windshield wiper of

1994-05-19

1995-10-31

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Forming continuous work followed by cutting

264152, 2641771, 26417717, B29C 6900

Patent

active

054627079

ABSTRACT:
A method of producing an elastic elongated wiping blade for a windshield wiper of a motor vehicle, which wiping blade includes a rear strip supported by a support and having a longitudinal passage which is closed from all sides by walls of the rear strip in a longitudinal direction for receiving an elastic reinforcing rail, the method includes the steps of extruding a wiping blade of a material in plastic deformable condition from an extruder nozzle, opening a longitudinal passages in the rear strip during exiting from the extruder nozzle over a longitudinal slot, closing the longitudinal slot by abutting wall portions of the longitudinal passage which form edges of the slot, against one another in soft condition so that the wall portions are connected with one another, and hardening the wiping blade so that the longitudinal passage is closed around in a longitudinal direction.

REFERENCES:
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patent: 2651800 (1953-09-01), Picon
patent: 3107384 (1963-10-01), Wise
patent: 3174173 (1965-03-01), Phillips et al.
patent: 3480986 (1969-02-01), Forster
patent: 3744947 (1973-10-01), Skobel
patent: 4712989 (1987-12-01), Schiesser
patent: 4844762 (1989-07-01), Schroder
patent: 4904434 (1990-02-01), Hyer
patent: 4981637 (1991-01-01), Hyer
patent: 5204035 (1993-04-01), Boltze et al.

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