Method for producing shoe soles by injection-molding

Details Method for producing shoe soles by injection-molding Method for producing shoe soles by injection-molding

1997-01-29

1999-09-21

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

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

Flash or sprue removal type

264138, 264244, 264250, 264261, 264275, 425119, 4251292, 12146BP, B29C 4514

Patent

active

059550171

ABSTRACT:
Method for producing soles for shoes, which initially includes the production, by molding, of a sole that has a perimetric ridge that protrudes downwards. The sole is then placed on a plunger of a mold that has a head which is shaped complementarily with respect to the lower surface of the sole and with respect to the ridge and in which there is a recess for containing the ridge and a gap for the intended flow of a second material to be injected. The last step consists in trimming the flash, which has an intended consistency.

REFERENCES:
patent: 2178086 (1939-10-01), Szerenyi
patent: 3949040 (1976-04-01), Drab
patent: 4090831 (1978-05-01), Hujik
patent: 4562606 (1986-01-01), Folschweiler

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