G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 15/43 (2006.01) G11B 15/22 (2006.01) G11B 15/665 (2006.01)
Patent
CA 2071755
ABSTRACT OF THE DISCLOSURE A video tape recorder has a tape tensioning mechanism for tensioning a magnetic tape drawn out of a tape cassette. The tape tensioning mechanism has a ten- sioning arm angularly movably mounted on a movable chassis and having a tensioning pin for contacting the tape to ten- sion the tape when the tape has been loaded in a predeter- mined tape path, a tightening lever movably mounted on the movable chassis, and a tension spring for normally urging the tensioning arm in a direction to turn the tensioning arm to bring the tensioning pin into contact with the tape. A pusher is fixedly mounted on a fixed chassis for pushing the tightening lever to tighten the tension spring substan- tially at the same time that the magnetic tape is loaded in the predetermined tape path. When the magnetic tape is not loaded in the tape path, the tightening lever is released from the pusher to loosen the tension spring. Since the tension spring is not required to bias the tensioning arm when the magnetic tape is unloaded and is only required to bias the tensioning arm when the magnetic tape is loaded, the tension spring may be of a relatively small size.
Fukahori Kenichi
Ikegami Keisuke
Kushiro Sunao
Yamaguchi Masato
Gowling Lafleur Henderson Llp
Sony Corporation
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