Pinch pressure-adjusting device for a pair of pinch rollers used with dual capstan type tape-running apparatus
US4412638A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1981 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Sep 23, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/442
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The pinch pressure-adjusting device comprises a pair of pinch roller-supporting members which rotatably hold the paired pinch rollers and whose pivotal shaft is set in parallel with the rotary shafts of said paired pinch rollers; a first urging member, one end of which is fixed to one of the paired pinch roller-supporting members; a second urging member, one end of which is fixed to the other of the paired pinch roller-supporting members; and a movable member which is fixed to the other end of the first urging member and to the other end of the second urging member. The movable member is shifted between a first position in which the movable member is more spaced from one of the paired pinch roller-supporting members than from the other thereof and a second position in which the movable member is more spaced from the other of the paired pinch roller-supporting members than from the one thereof. When the tape travels in a direction from the other of the paired pinch rollers to the one thereof, the movable member takes the first position to cause the first urging member to produce a greater urging force than the second urging member, and, when the tape travels in the opposite directio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.