Winding – tensioning – or guiding – Strand tensioning device – Tortuous course
Patent
1979-05-24
1981-09-22
Christian, Leonard D.
Winding, tensioning, or guiding
Strand tensioning device
Tortuous course
242199, G11B 2310
Patent
active
042905672
ABSTRACT:
In a cassette for use in a magnetic recording and/or reproducing apparatus and which is of the type having a housing containing freely rotatable reels having magnetic tape wound thereon with the tape extending between said reels being guided to direct a run thereof across an access opening in said housing, an improved brake assembly is provided for automatically preventing excess slackness in the run of tape when the cassette is disengaged from the magnetic recording and/or reproducing apparatus and for automatically releasing the tape run when the cassette is so engaged. A holder having a resiliently flexible element slidably disposed in a gap provided therein is arranged with respect to a support element such that the free end portion of the element preferably having a low coefficient of friction normally urges a tape portion into pressing contact with the support element so as to provide the braking action. When the tape run is drawn out of the access opening or otherwise tensioned, however, the element is flexed thereby such that only the free end portion having the low coefficient of friction is in sliding contact with the tape, whereby the automatic release action is provided.
REFERENCES:
patent: 2894700 (1959-07-01), Roberts et al.
patent: 3797779 (1974-03-01), Esashi et al.
Christian Leonard D.
Eslinger Lewis H.
Sinderbrand Alvin
Sony Corporation
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