US 6,664,491 B2 · Push switch

Abstract

In a switch, an elastic member made of elastic material includes a bar section, a conical section at its upper portion functioning as a first deforming section, and a second deforming section at its lower portion. A movable contact in a switch case is pushed with the lower end portion of the second deforming section. A bar section of an elastic element projects through a central hole of a cover fixed to the switch case. In this switch, a pushing force applied to the elastic element deforms the first deforming section elastically, and then the second deforming section deforms elastically, and thus, the switch operates. The switch can absorb fluctuations due to combination of components of an electronic appliance, and stabilize its manipulation feeling through eliminating looseness of an operation button of the appliance.

Claims13

Dependent claims

A push switch comprising:

an insulating switch case,
first and second fixed contacts exposed on said switch case,
a movable contact including:
a periphery disposed on said first fixed contact;
and
a tongue made of elastic metal linked to said periphery, said tongue facing said second fixed contact at a predetermined interval;
an elastic member including:
a bar section having a first deforming section deforming elastically with a pushing force;
a conical section opening and pushing said periphery at an end thereof;
and
a drooping section provided inside of said conical section for pressing said tongue;
and
an operation element for pushing said first deforming section of said elastic member towards said conical section prior to actuation of said push switch;
wherein said first deforming section deforms with said pushing force, and then, said conical section deforms elastically while said elastic member deforms elastically.

11 more elements

Dependencies are inferred from the claim text.

Push switch

Life of this patent

Push switch

Life of this patent

Abstract

Claims13