Release mechanism for a push-button tuner
US4467671A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1982 |
| Grant date | Aug 28, 1984 |
| Priority date | — |
| Expiry date | Feb 18, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19735
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A release mechanism of a push-button tuner for use in car radios etc., comprising a manual tuning shaft which has a threaded portion, a release plate which is movably and turnably installed on a guide rod disposed in parallel with the manual tuning shaft and which is provided with a friction plate corresponding to the threaded portion, a core carriage which moves in the same direction as a moving direction of the release plate in interlocking with a movement thereof, and a release plate which is operated by depressing a push button. The friction plate and the threaded portion are held in engagement in the normal state, and the engagement is released when the push button is depressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.