Operating device

Details Operating device Operating device

1997-08-07

1999-11-16

Jeffery, John A.

Machine element or mechanism

Control lever and linkage systems

Elements

200529, H01H 312

Patent

active

059837489

ABSTRACT:
A switch device 1 has an outer frame 2, and a rotor 13 . A spring 14 is provided between the bottom 7 of the outer frame 2 and the rotor 13 in such a manner that its two ends are secured to the outer frame 2 and the rotor 13. The rotor 13 is operated with the aid of an operating knob 3. The bottom 7 has first and second body-side protrusions 9 and 10 which have sloped surfaces, and steps, and are arcuate. The rotor 13 has first and second operating-element-side protrusions 19 and 20 with respect to the body-side protrusions 9 and 10 which have sloped surface and steps and are arcuate. The rotor 13 has a rod 18. As the rotor 1 is operated, the rod 18 is protruded from a through-hole 8, thus performing a switching operation. When the switch device 1 is operated, the force of operation of the operating knob 3 is improved, being the sum of a frictional force attributing to the slip between the sloped surfaces of the protrusions 9 and 10 and the sloped surfaces of the protrusions 19 and 20.

REFERENCES:
patent: 5626223 (1997-05-01), Lee

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