Method of manufacturing fuel tank and fuel tank
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMiki Kimura
Life of this patent
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Abstract
A method of manufacturing a fuel tank includes: an introducing process in which a molten resin sheet formed with a tank body is introduced in a forming mold; a shaping process in which a movable member abuts against the molten resin sheet to form a molten resin projection projected in a thickness direction of the molten resin sheet; an arranging process in which the molten resin projection is inserted in an attachment hole provided in an attachment part, and the attachment part is arranged on the molten resin sheet; and a machining process in which the molten resin projection is pressurized by a pressurizing member, so as to bulge out a portion of the molten resin projection to an outer peripheral side.
Claims10
A method of manufacturing a fuel tank comprising:
- introducing a molten resin sheet in a forming mold, the molten resin sheet being formed with a tank body formed of a resin;
- shaping a molten resin projection by forming a molten resin projection and abutting a movable member against the molten resin sheet, the molten resin projection being projected in a thickness direction of the molten resin sheet;
- arranging an attachment part on the molten resin sheet by inserting the molten resin projection in an attachment hole provided in the attachment part;
- and
- machining to make a portion of the molten resin projection bulge out to an outer peripheral side by moving the movable member in an opposite direction from a projecting direction of the molten resin projection while pressurizing the molten resin projection by a pressurizing member in the opposite direction from the projecting direction of the molten resin projection, wherein
- during a process in which the portion of the molten resin projection is machined to bulge out to the outer peripheral side, the movable member and the pressurizing member move with a constant clearance being kept between the movable member and the pressurizing member during pressurization of the molten resin projection.
Dependencies are inferred from the claim text.