Manufacturing method for a resin container
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKatsuyuki Kido, Hirokazu Ishimaru, Masaki Terada, Yoichi Serino, Makoto Kito
Life of this patent
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Abstract
In a state where a gas barrier sheet (10) having a gas barrier layer is held between a heat plate (12) and a pressing plate, the gas barrier sheet is disposed between two molds together with a sub tank (44) and a separator (46) constituting attachment parts, the molds are then closed and a resin is injection-molded forming a resin layer (36). A method for manufacturing a resin container by melt-adhering an intermediate molded product (38) and another intermediate molded product (38) constituting a pair therewith by heating with a heat plate (12) thereafter, and a resin container manufactured by this manufacturing method.
Claims12
A method for manufacturing a resin container comprising:
- holding peripheral edges of a sheet member between a heating plate containing a heater and a pressing plate;
- setting said sheet member in a lower mold such that said sheet member is adhered to a surface of said lower mold by reducing the pressure between said lower mold and said sheet member and then setting an upper mold onto said lower mold such that the peripheral edges of said upper mold contact the beating plate and a cavity is formed between said sheet member and the inner surface of said upper mold;
- forming a first intermediate molded product by pouring molten resin inside of the cavity, and cooling and solidifying the molten resin to form a resin layer;
- forming a second intermediate molded product having a resin layer and a sheet layer;
- melt-adhering the sheet member of said first intermediate product with the sheet member of said second intermediate product by superimposing the peripheral portions of respective sheet members of said first and second intermediate molded products so that said sheet members of said first and second intermediate molded products form a bag-like structure with said resin members not contacting each other,
- removing a portion of the peripheral edges of the sheet members along with rite heating plate by which said sheet members are held;
- and
- pressing the intermediate molded products onto each other so as to melt-adhere the respective resin layers of said first and second intermediate products to each other.
Dependencies are inferred from the claim text.