Device for manufacturing sandals

Details Device for manufacturing sandals Device for manufacturing sandals

1997-11-21

1999-04-06

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

4251292, 425DIG44, B29D 3150

Patent

active

058914846

ABSTRACT:
The invention includes a device for the manufacture of sandals. The device is formed by a last, covered by the sandal shaft which represents the upper limitation of the cavity of a mold of an injection molding tool. The molding tool is designed for molding a sole onto the shaft in an injection mold cavity, such cavity being formed by lateral parts of the mold and, if necessary, a bottom last portion. The upper edge of the lateral parts of the mold and the complementary contour of the last form a sealing zone for the cavity. In addition, there is provided within the area of the sealing zone, a seal of elastic material, disposed between the last and the lateral parts of the mold. The seal encloses the last completely when the lateral parts of the mold are in their closed position.

REFERENCES:
patent: 1770655 (1930-07-01), Nielsen
patent: 1842719 (1932-01-01), Dunker
patent: 1995429 (1935-03-01), Laura
patent: 2569725 (1951-10-01), Masek
patent: 3474496 (1969-10-01), Klee
patent: 3611501 (1971-10-01), Daum et al.
patent: 3659301 (1972-05-01), Auberry et al.
patent: 3994645 (1976-11-01), Funck
patent: 4817305 (1989-04-01), Wetzel

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