Plastic article or earthenware shaping or treating: apparatus – With mechanical means forming or expanding pores
Patent
1989-09-26
1990-11-27
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With mechanical means forming or expanding pores
249 91, 249 94, 249 96, 249175, 264 464, 425117, 425125, 425577, B29C 3910, B29C 3926
Patent
active
049732358
ABSTRACT:
A mold for manufacturing a skin covered foamed plastic article incorporating a hole, with which it is possible to place the skin cover at a desired position despite of the presence of the hole, without spoiling or damaging the skin cover, such that the skin covered foamed plastic article of a desired shape without any deficiencies such as wrinkles and dents can easily be manufactured. The mold includes a lower mold having a cylindrical bossing with a hollow inside, corresponding to the hole, around which the skin cover is placed in such a manner that an edge of a hole on the skin cover is located in the hollow inside the cylindrical bossing, the cylindrical bossing being in such a shape that the hollow inside the cylindrical bossing is shielded off from the cavity when the lower mold is assembled with the upper mold so that the liquid foam resin cannot enter into the hollow; and a fastening cap, to be attached to the cylindrical bossing over the skin cover, for fastening the skin cover to the cylindrical bossing at a desired position.
REFERENCES:
patent: 4379104 (1983-04-01), Koorevaar
patent: 4420447 (1983-12-01), Nakashima
patent: 4833741 (1989-05-01), Mizuno et al.
Ikeda Bussan Co. Ltd.
Nguyen Khanh P.
Woo Jay H.
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