Device for correctly positioning a steel cap on a shoe last duri

Details Device for correctly positioning a steel cap on a shoe last duri Device for correctly positioning a steel cap on a shoe last duri

1987-08-07

1988-10-18

Hoag, Willard

Static molds

Uniting preform with molding material

36 77R, 264275, 425119, 4251292, B29C 3926, B29C 4526

Patent

active

047781459

ABSTRACT:
A steel cap is mounted on a shoe molding last during molding, particularly during the initial molding of a plastic shoe. The steel cap furthermore is supported on the shoe molding last by a plurality of projecting members distributed over the surface of the steel cap extending from it or the shoe molding last. At least one releasable holding or retaining means is provided on the shoe molding last which holds the steel cap on the shoe molding last secure against unintended release. To obtain a nearly flawless jacket or sheath of synthetic resin about the steel cap the holding or retaining means comprises at least one slender elastic pin directed transverse to the insertion direction of the steel cap. The steel cap has at least one of the elastic pins engaging against a roughened interior surface of the steel cap and the pin locks in the roughened surface of the steel cap under compression.

REFERENCES:
patent: 3577503 (1971-05-01), Innocenti
patent: 4453904 (1984-06-01), Koliwer

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