Stackable winding cores for magnetic tapes

Details Stackable winding cores for magnetic tapes Stackable winding cores for magnetic tapes

1997-01-03

1998-10-27

Thomas, Alexander

Stock material or miscellaneous articles

Circular sheet or circular blank

Aperture containing

242605, 206394, B65H 7518

Patent

active

058275940

ABSTRACT:
An improved rigid winding core for flexible tapes achieving improved interlocking between adjacently stacked cores by a first interlocking mechanism located on the inner rim and a second, additional, mechanism located on the planar surfaces. The first mechanism comprises a number of clamping teeth each of which comprises a first radial extending portion and a second axial extending portion. The clamping teeth is trapped in position by a retention gap formed on the inner rim. The second mechanism comprises a number of complementary lug and recess pairs which are distributed on the core planes. This improved core discloses a winding core with improved interlocking while at the same time provides considerable material saving comparing to conventional designs.

REFERENCES:
patent: 4280670 (1981-07-01), Schor
patent: 4340188 (1982-07-01), Derendorf et al.
patent: 5004175 (1991-04-01), Lee
patent: 5441216 (1995-08-01), Shiba

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