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:
Dec. 11, 1984

Filed:

Feb. 11, 1982
Applicant:
Inventors:

Hiroyasu Miyata, Furukawa, JP;

Keizo Watanabe, Iwaki, JP;

Akio Yamaguchi, Iwaki, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
74 1033 ; 74 1037 ; 334-7 ;
Abstract

A push-button type tuner comprises a tuning slide member having a positioning portion on one side edge thereof and being capable of sliding in a predetermined direction, a locking member supporting a cam member and capable of moving in a direction substantially perpendicular; to the sliding direction of said tuning slide member. The cam member includes a cam portion moving with said locking member to fall in engagement with the positioning portion of said tuning slide member and a cam shaft connected to said cam portion and inserted between said locking member and a pressing member, and said pressing member moves with said locking member to press the cam member toward the locking member and hold the cam member between the pressing member and the locking member, wherein a receiving portion for receiving the periphery of the cam portion of said cam member is formed in the locking member on the side corresponding to the action point of the pressing member and the cam member is held between the action point of the pressing member and said receiving portion. In this tuner, the stability of the state of locking of the cam member is highly improved and a high reliability is attained without any shear in tuning.


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