Tape tension controlling mechanism for magnetic...

Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Carrier speed or tension control

Reexamination Certificate

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C242S343100

Reexamination Certificate

active

06863232

ABSTRACT:
A tape tension controlling mechanism of a magnetic recording/reproducing apparatus for controlling a tension of a magnetic tape includes: a reel bed; a reel bed drum; a tension post; a tension arm rotatably supported by a tension arm shaft; an urging element; a tension band having an engagement portion; and a band fixing screw having a threaded portion at one end thereof and a head portion at the other end, the band fixing screw further having, between the threaded portion and the head portion, an intermediate shaft portion for engagement with the engagement portion of the tension band, wherein a longitudinal center line of the intermediate shaft portion is shifted from the longitudinal center line of the threaded portion, and a pitch P of a thread of the threaded portion and a longitudinal length L of the intermediate shaft portion have a relationship of L>P/2.

REFERENCES:
patent: 3677496 (1972-07-01), Apitz
patent: 4614315 (1986-09-01), Gerrits et al.
patent: 5167380 (1992-12-01), Choi
patent: 5625509 (1997-04-01), Matsuoka
patent: 5772141 (1998-06-01), Ahn
patent: 5772142 (1998-06-01), Ahn
patent: 6286775 (2001-09-01), Hirabayashi et al.

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