US 5,969,313 A · Inhibitor switch having an improved bearing portion

Abstract

An inhibitor switch having a construction that facilitates fabrication by disposing a bearing surface made of a metal plate so as to be exposed at a bottom surface of a shaft hole to which a shaft of a movable plate is pivotably fitted, and having fixed contact plates formed in a pole plate by insertion molding. The movable plate has movable contacts, which are brought into contact with the fixed contact plates. A movable arm is secured to the movable plate. A case supports pivotably the movable plate together with the pole plate. The bearing surface made of a metal plate is disposed so as to be exposed at the bottom surface of the shaft hole to which the shaft of the movable plate is pivotably fitted. The bearing surface can be integral with one of the fixed contact plates.

Claims12

Dependent claims

An inhibitor switch comprising:

a pole plate (1) in which fixed contact plates (2) are formed by insertion molding;
a movable plate (3) having movable contacts (4), which are brought into contact with said fixed contact plates (2), said movable plate also having a shaft with multiple protrusions radially extending therefrom;
a movable arm (8) secured to said movable plate (3);
and
a case (7) supporting pivotably said movable plate (3) together with said pole plate (1);
wherein a bearing surface (2c) made of a metal plate is disposed in said pole plate (1) so as to be exposed to a bottom surface of a shaft hole (1b) to which the shaft (3b) of said movable plate (3) is pivotably fitted;
and
wherein a displacement preventing hole (3e, 3f) is formed on each end of said shaft (3a, 3b) of the movable plate (3) at a center of an end surface thereof.

5 more elements

Dependencies are inferred from the claim text.

Inhibitor switch having an improved bearing portion

Life of this patent

Inhibitor switch having an improved bearing portion

Life of this patent

Abstract

Claims12