The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 11, 1981

Filed:

Apr. 14, 1980
Applicant:
Inventors:

Shiro Kondo, Furukawa, JP;

Minoru Oyama, Furukawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200340 ; 200333 ;
Abstract

A construction for attaching a knob to a manipulation rod of a push-button type actuating mechanism. The knob has a cap-like shape with an outer wall and an inner cylinder having a bore. A snapping protrusion is formed at the lower end of the inner peripheral surface of the outer wall. The snapping protrusion has a tapered section protruding inwardly from the inner peripheral surface of the outer wall and a snapping step formed on the inner peripheral surface of the outer wall. The manipulating rod has a flange formed at its intermediate portion and resilient tongues formed on the upper end thereof. As the rod in inserted into the bore of the inner cylinder of the knob, the outer peripheral surface of the flange slides along the tapered section of the snapping protrusion spreading the outer wall outwardly and then comes into snapping engagement with the snapping step. This engagement is maintained firmly by the action of the resilient tongues which resiliently presses the rod downwardly to keep the flange in tight contact with the snapping step.


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