Multiple pushbutton switch assembly for telephone sets and the like
AssigneeNorthern Electric Company Limited
InventorGerd Kuhfus
Life of this patent
Estimating the term…
Abstract
For telephone sets and similar forms of apparatus in which pushbuttons are mounted more or less flush with the outside surface and actuated by pivoting, a series of such pushbuttons are mounted on a shaft secured in a housing. The pushbuttons are mounted on the shaft at one end and at the other end rest on pushbutton switch mechanisms. Each button is identical and interchangeable. Locating formations on buttons and housing interengage to locate the pushbuttons. The switch mechanisms are spring loaded and urge pushbuttons to a non-actuated position. Indicator windows for removable and interchangeable indicators can be provided.
Claims4
A push button switch assembly for pushbutton actuation of switches, comprising:
- a housing, an aperture in said housing, and a plurality of pushbuttons pivotally mounted in said aperture, each of said pushbuttons of rectangular plan form and including pivotting means at a rear end, the pushbuttons extending side-by-side in said apertures;
- parallel spaced apart ribs in said housing, said ribs extending one along each side of said aperture and normal to and away from an outer surface of the housing;
- a shaft extending through said ribs on said housing and through said pivotting means on each of said push-buttons, and
- locating means on each of said pushbuttons to locate each button relative to the housing in a direction corresponding to the pivotal movement of the pushbutton,
- a plurality of switches in said housing beneath said pushbuttons, a switch beneath each pushbutton, each switch including a movable member and resilient means biasing said movable member into contact with an under surface of the related pushbutton, and said movable member biasing said pushbutton to an initial position having a top surface flush with a top surface of said housing.
Dependencies are inferred from the claim text.