Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1975-02-07
1976-06-01
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 7528
Patent
active
039603385
ABSTRACT:
A magnetic tape cassette hub with an improved hub body member and tape retention means having a very low coefficient of friction is described for preventing separation therefrom of a tape also having a very low coefficient of friction. The hub described comprises a body member in which there is provided a cavity for receiving a latching member. The latching member is pivotably coupled, by means forming an integral hinging means, to the body member at one end of the cavity. On opposite sides of the hinging means, extending from the latching member and the adjoined side wall of the cavity, there is provided a pair of protruding members which overlap and are drawn together by the hinging means as the latching member is pivoted into and locked in the cavity. The tension forces thus produced in the latching member by the hinging means is found to provide a tape retention force which exceeds the yield strength of the tape even when the hub material is an acetal resin and the tape material is a polyester.
REFERENCES:
patent: 3195828 (1965-07-01), Kuckhoff
patent: 3233842 (1966-02-01), Graffon
patent: 3523654 (1970-08-01), Zielke
patent: 3752416 (1973-08-01), Fukatsu
patent: 3774862 (1973-11-01), Rodach
K/Tronic Inc.
McCarthy Edward J.
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