Mechanism with damper to prevent overtravel upon sudden release

Details Mechanism with damper to prevent overtravel upon sudden release Mechanism with damper to prevent overtravel upon sudden release

1992-11-06

1994-01-18

Luebke, Renee S.

Electricity: circuit makers and breakers

Solid contact

Push button operated

200314, H01H 342

Patent

active

052801489

ABSTRACT:
A damper is provided for a switch mechanism to prevent overtravel in response to a snap-release of a plunger when it is fully depressed. If no precautions are taken to prevent this type of overtravel, springs which urge the plunger away from its base can provide sufficient force to propel the plunger away from the base with sufficient speed and force to cause the plunger to travel past its intended unactuated position. The present invention utilizes a sloped cam surface which acts as a damper to divert the direction of travel of a cam follower relative to a cam and thereby dissipate the kinetic energy of the plunger, button and moveable components attached to the plunger.

REFERENCES:
patent: 3523168 (1970-08-01), Holmes
patent: 3766346 (1973-10-01), Alexander
patent: 4254315 (1981-03-01), Stevens
patent: 4585914 (1986-04-01), Ohashi et al.

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