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US 4,306,216 AGranted
Variable resistor with click mechanism
AssigneeAlps Electric Co., Ltd.
InventorsTadamitsu Azema, Mayumi Sato
Life of this patent
Estimating the term…
Abstract
A variable resistor provided with a click mechanism comprising a metallic bearing, a slide member, a holder to which the slide member is attached, a leaf spring being placed in a cavity formed in the bearing. A protrusion formed integrally with the leaf spring being resiliently contacted with plurality of grooves for click which are formed in a bottom of the bearing.
Claims3
A variable resistor comprising:
- A casing having a resistor member therein;
- A slide contact member being slidable on said resistor member;
- A holder carrying said slide contact member being rotatably retained in said casing;
- A metallic shaft for rotating said holder;
- A metallic bearing for retaining said shaft;
- and
- means for obtaining a clicking during the rotation of said shaft, said click means comprises a cavity formed integrally with said bearing and having a plurality of radial grooves on a bottom thereof, and a disc shape leaf spring disposed within said cavity so as to resiliently contact with said grooves, said disc shape leaf spring being arranged to electrically connect said bearing with said shaft.
4 more elements
Dependencies are inferred from the claim text.