Cassette with controlled-speed elastic belt
US4488690A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1983 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Mar 10, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B15/26
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a tape transport apparatus comprising notably a floating roller (12) tangent to reels (5, 6), and an elastic endless belt (11) extending between the floating roller (12) and the reels (5, 6) to form a first loop (11a) surrounding the floating roller (12) and a second loop (11b) engaging on an arc of the periphery of each of the reels (5, 6) to maintain the tension of the accessible portion of the tape (7), this second loop (11b) extending around at least one return roller (13, 14), the invention provides that at least return roller (14) is directly driven by drive means (18, 19), whereby the peripheral speed of the driven return roller (14) and the peripheral speed of the floating roller (12) are maintained in a ratio slightly greater than 1, so as to ensure better tensioning of the tape on the take-up reel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.