Appeal No. 95-4853 Page 4
Application No. 08/019,335
setting said covering portion of said formed article
obtained in the forming step on one of a pair of dies which
constitute a press-type forming die;
setting a molten resin which is a forming material of said
base portion into a gap between said first die and said second
die in a state in which said covering portion of said formed
article is being set on said first die;
clamping said press-type forming die and causing said
molten resin to set in a gap between said covering portion and
said second die to form said resin and said covering portion
into said formed article and preventing leakage of said molten
resin from said two-part die and thus avoiding the formation of
burrs on said formed article due to contact between said second
die and a slide core member; and
opening said press-type forming die and then removing the
formed article obtained in said clamping step from said press-
type forming die.
5. A method of forming a formed article having a double-
layer structure consisting of a base portion and covering
portion that covers an outer periphery of said base portion and
which has an inwardly curved portion for covering an end
portion of the base portion, said method comprising the steps
of:
forming a sheet-like material, made of a thermoplastic
resin and having a surface layer and a foam layer, into a
predetermined shape by vacuum forming to obtain a preliminary
covering portion using a two-part die, one part of which is
connected to an evacuation means, said sheet-like material
being heated, said foam layer located at a corner in said two-
part die being compressed and thereby eliminated by said two-
part die;
trimming an end portion of said preliminary covering
portion obtained in the forming step to obtain said covering
portion of said formed article, said covering portion being
obtained prior to formation of said base portion;
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Last modified: November 3, 2007