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US 2025/0067282 A1Published application
Manufacturing method and exterior body of accumulator
AssigneeNHK Spring Co., Ltd.
InventorsNaohito Nakano, Daijiro Ohta, Akira Tsujino, Tomoya Kurokawa
Life of this patent
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Abstract
A manufacturing method for manufacturing an exterior body of an accumulator including a bottom, a shell, and a port, includes: press fitting the bottom into the shell; and melting and solidifying a region including a part of a connection portion between the bottom and the shell which has been press fitted.
Claims6
1-4. (canceled)
A manufacturing method for manufacturing an exterior body of an accumulator including a bottom, a shell, and a port, the method comprising:
- press fitting the bottom into the shell;
- and
- melting and solidifying a region including a part of a connection portion between the bottom and the shell which has been press fitted.
An exterior body of an accumulator, the exterior body comprising:
- an exterior body including a bottom, a shell, and a port;
- a bellows provided inside the exterior body;
- and
- a cap bellows assembly configured to seal one end of the bellows, wherein
- a welded portion formed by melting and solidifying a part of the bottom and the shell is formed at a connection portion between the bottom and the shell, and
- a connection surface of the bottom and a connection surface of the shell, which are continuous with the welded portion, are in a state of being in pressure contact with each other.
3 more elements
Dependencies are inferred from the claim text.