Flange member and flange forming method
AssigneeRoki Techno Co., Ltd.
InventorOsamu KUMAGAI
Life of this patent
Estimating the term…
Abstract
A structure in which no shearing force acts on each member is desired to be used at a welded part where a stress is liable to be concentrated. To solve this problem, the flange member includes a cap member, a ring member, and sheet-shaped thermoplastic resin member. At least one end of the thermoplastic resin member includes a protruding part that protrudes from an end surface of the cap member and from an end surface of the ring member. The protruding part is welded to the end surface of the cap member and to the end surface of the ring member.
Claims16
A flange member, comprising:
- a thermoplastic resin-made cap member including an end surface and an outer peripheral surface;
- a thermoplastic resin-made ring member including an end surface and an inner peripheral surface opposed to the outer peripheral surface of the cap member;
- and
- a sheet-shaped thermoplastic resin member formed in a hollow shape with an opening in at least one end,
- wherein the thermoplastic resin member includes a nip portion nipped between the outer peripheral surface of the cap member and the inner peripheral surface of the ring member such that an inner surface of the thermoplastic resin member located near the opening comes into contact with the outer peripheral surface of the cap member and an outer surface of the thermoplastic resin member comes into contact with the inner peripheral surface of the ring member, the at least one end of the thermoplastic resin member including a protruding part that extends from the nip portion and protrudes from the end surface of the cap member and from the end surface of the ring member, and
- wherein the protruding part is welded to the end surface of the cap member and to the end surface of the ring member.
4-6. (canceled)
A method for forming a flange, comprising:
- nipping a sheet-shaped thermoplastic resin member between a thermoplastic resin-made cap member including an end surface and an outer peripheral surface and a thermoplastic resin-made ring member including an end surface and an inner peripheral surface opposed to the outer peripheral surface of the cap member, the thermoplastic resin member being formed in a hollow shape with an opening in at least one end, the thermoplastic resin member being nipped between the outer peripheral surface of the cap member and the inner peripheral surface of the ring member such that an inner surface of the thermoplastic resin member located near the opening is brought into contact with the outer peripheral surface of the cap member and an outer surface of the thermoplastic resin member is brought into contact with the inner peripheral surface of the ring member, the at least one end of the thermoplastic resin member including a protruding part that protrudes from the end surface of the cap member and from the end surface of the ring member;
- and
- welding the protruding part to the end surface of the cap member and to the end surface of the ring member.
12-14. (canceled)
Dependencies are inferred from the claim text.