Push-button type tuner
US4487084A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Feb 11, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03J5/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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 witho…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.