Reel holder for retaining reels of video film
US4978083A · kind A · utility
4Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1988 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Nov 29, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/113
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flangeless-type reel holder for a device manufacturing reels of video film including a ring-type leaf spring fitted around the reel holder. The reel holder is fitted around a sleeve mounted on a drive shaft of the device, by means of a bearing interposed therebetween. The reel holder is directly coupled to the outer rim of the bearing. The outer diameter of the leaf spring fitted around the reel holder is larger than that of an annular rim of the reel holder so that the inner peripheral surface of a reel hub to be fitted around the reel holder can closely contact with the outer surface of the leaf spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.