Tape reel hub including a cantilever beam section to reduce tape

Details Tape reel hub including a cantilever beam section to reduce tape Tape reel hub including a cantilever beam section to reduce tape

1980-06-23

1982-09-21

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 685, 242 74, B65H 7518, B65H 7528

Patent

active

043503098

ABSTRACT:
A reel for web material such as magnetic recording tape is disclosed. The reel may be advantageously employed in a reel-to-reel magnetic tape transport where magnetic tape is wound under tension that is converted to radial forces which subject layers of the tape disposed over discontinuities associated with the reel hub to adversely affect the transducing relationship between the flux gap and the transducer of the recording surface of the tape.
The section of the cylindrical tape receiving surface which is associated with a discontinuity is formed to function as a cantilever beam with the distal end of the beam being aligned with the discontinuity. The outer portion of the hub is made of relatively compressible material, while the inner portion is relatively solid. Compressibility of the outer portion is enhanced by providing a plurality of circumferentially disposed cylindrically shaped openings which also function to relieve radially induced forces on the tape layers.

REFERENCES:
patent: 3132822 (1964-05-01), Arthur
patent: 3395872 (1968-08-01), Fattori
patent: 3664607 (1972-05-01), Trefzger et al.
patent: 3695541 (1972-10-01), Lee
patent: 3802638 (1974-04-01), Dragan
patent: 3840196 (1974-10-01), Presentey
patent: 3973740 (1976-08-01), Schankler

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