Pressure container and pressure accumulating/buffer apparatus
AssigneeNHK Spring Co., Ltd.
InventorsTakeyoshi Shimbori, Hiroshi Mizukami, Koichiro Yamada, Kyohei Inoue
Life of this patent
Estimating the term…
Abstract
A pressure container has a steel pipe and an end plate that is formed with a joint portion by allowing its tapered surface to touch a tapered surface of an opening end of the steel pipe so as to block the opening end. The steel pipe has a flange portion which can be cut at the opening end of the steel pipe, and the joint portion is allowed to touch the flange portion. The flange portion is pressed against the opening end along an axial direction so as to touch the end plate, and while the end plate is being pressed against the steel pipe along the axial direction, an electric current is applied so that welding is carried out.
Claims6
A pressure container comprising:
- a cylindrical contour member;
- and
- a cover body which is formed with a joint portion by allowing its side wall portion to touch an inner wall portion of an opening end of the contour member and blocks the opening end,
- wherein the contour member has a flange portion which can be cut at the opening end, and
- the joint portion is allowed to touch the flange portion, the flange portion is pressed against the opening end along an axial direction so as to touch the cover body, and while the cover body is being pressed against the contour member along the axial direction, an electric current is applied so that welding is carried out.
A pressure accumulating/buffer apparatus comprising:
- a pressure container;
- and
- an air chamber into which gas can be sealed and a liquid chamber into which a liquid can flow that are provided in the pressure container,
- wherein the pressure container has a cylindrical contour member and a cover body which is formed with a joint portion by allowing its side wall portion to touch an inner wall portion of an opening end of the contour member and blocks the opening end,
- the contour member has a flange portion which can be cut at the opening end, and
- the joint portion is allowed to touch the flange portion, the flange portion is pressed against the opening end along an axial direction so as to touch the cover body, and while the cover body is being pressed against the contour member along the axial direction, an electric current is applied so that welding is carried out.
Dependencies are inferred from the claim text.