Capstan friction drive apparatus of tape recorder
US4701816A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1984 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Mar 14, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H13/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a friction drive apparatus of a tape recorder which has a capstan and a friction wheel which is brought into slidable contact with a flywheel on which the capstan is mounted, the friction wheel serving to transmit a rotational force to the flywheel, the apparatus being constructed such that there are provided a support mechanism for pivotally supporting the friction wheel about a pivotal point which is eccentric with respect to a rotating shaft of the friction wheel, and biasing means for pivotally biasing the friction wheel about the pivotal point in a contact surface direction of the flywheel, the biasing means being arrranged to apply a predetermined initial contact pressure between the friction wheel and the flywheel, and a rotational direction of the friction wheel being determined such that a reaction force at the contact surface upon rotation of the friction wheel acts in a direction to cause pivotal movement of the friction wheel in the same direction as a direction toward which the biasing means acts, thereby increasing a contact pressure between the friction wheel and the flywheel above the initial contact pressure. The support mechanism pivotally…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.