Reel shaft
US4469293A · kind A · utility
2Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Oct 19, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/087
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reel shaft comprises a substantially cylindrical shaft body to be fitted into a reel hub of a tape cassette for rotating the reel hub. A plurality of elongate projections are formed at regular intervals along the circumferential direction on the outer peripheral surface of the shaft body, and extend at a predetermined angle to the axial direction of the shaft body. The elongate projections on the shaft body engage or mesh with engaging projections of the reel hub to rotate the reel hub, and to push the reel hub in one direction along the axial direction of the reel shaft as the shaft body rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.