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US 7,442,893 B2Granted
Switch device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorTakayoshi Kishimoto
Life of this patent
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Abstract
A U-shaped spring member is placed on the outer periphery of a hollow cylindrical part of an operating body. Engaging portions in arm portions upwardly inwardly extending from both ends of the spring member are fitted into holes through the hollow cylindrical part and brought into resilient contact with a groove on the outer periphery of an operating shaft. This structure provides a switch device that has great resistance to pull-out of the operating body for secure fastening thereof and is easy to assemble.
Claims2
A switch device comprising:
- an operating body including a hollow cylindrical part, the hollow cylindrical part projecting on a bottom face of the operating body;
- a switch for making or breaking electrical contact by rotation of an operating shaft projecting upwardly;
- and
- a U-shaped spring member placed on an outer periphery of the hollow cylindrical part of the operating body that has the operating shaft of the switch inserted therein,
- wherein, the operating shaft includes a groove formed on an outer periphery thereof;
- the hollow cylindrical part includes holes therethrough;
- the spring member includes arm portions upwardly inwardly extending from both ends of the spring member;
- and
- the arm portions are fitted into the holes and in resilient contact with the groove.
6 more elements
Dependencies are inferred from the claim text.