Tape reel and method
US4540133A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1984 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Oct 24, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/037
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic tape reel (10) is illustrated which includes a central hub (A) and a back flange (B) and a front flange (C). The central hub (A) is symmetrical about a plane represented by line (26) which is normal to the reel axis (28) passing through the axial center of the reel. Through a section of the central hub there is provided a compression resisting Y-shaped section (D) that includes a transversely widened web stem (44) which carries an enlarged compression-resisting body at the top thereof which carries the tape winding ring (12). The compression-resisting body includes a shoulder (46) and a Y-shaped crossarm (48). Winding of tape on the tape winding ring (12) causes compression forces which are effectively resisted by the structure afforded through the Y-shaped web section (D). Attachment between the back flange (B) and the central hub is had between a ledge supporting surface (78) and a side of the shoulder (46b). Attachment is also had between fingers (84) which penetrate into web recess spaces (18) formed at the web (W). Attachment between the front flange (C) and the central hub (A) is had at a supporting ledge surface (50) and a side (46c) of the shoulder (46) and betwe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.