Fuel tank production apparatus and fuel tank production method
AssigneeYachiyo Industry Co., Ltd.
InventorsKazuyoshi Morooka, Toru Matsuzaki
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Abstract
A fuel tank production apparatus includes a forming mold and a cooling mold. The forming mold has a protruding ridge portion on a molding surface thereof and is configured to form a primary molded article while forming a bead-shaped portion so as to provide a recess on an outer surface. The cooling mold is configured to cool the primary molded article while crushing the bead-shaped portion by cooling blow pressure and deforming the bead-shaped portion into a rib-shaped portion.
Claims6
A fuel tank production apparatus comprising a forming mold and a cooling mold, wherein
- the forming mold has a protruding ridge portion on a molding surface thereof and is configured to form a primary molded article while forming a bead-shaped portion so as to provide a recess on an outer surface, and
- the cooling mold is configured to cool the primary molded article while crushing the bead-shaped portion by cooling blow pressure and deforming the bead-shaped portion into a rib-shaped portion.
A method of producing a fuel tank, comprising the steps of:
- a forming step of forming a primary molded article while forming a bead-shaped portion so as to provide a recess on an outer surface;
- and
- a cooling step of placing the primary molded article formed in the forming step in a cooling mold, followed by performing cooling blow,
- wherein in the cooling step, the primary molded article is cooled while the bead-shaped portion is crushed and deformed into a rib-shaped portion by cooling blow pressure.
Dependencies are inferred from the claim text.