G - Physics – 11 – B
Patent
G - Physics
11
B
181/69
G11B 17/032 (2006.01) F16P 3/08 (2006.01) G11B 33/02 (2006.01)
Patent
CA 1145682
ABSTRACT OF THE DISCLOSURE A releasable cover locking device associated with a cover of a record player of the type in which a record disk is rotated during a reproduction operation when power is sup- plied to the record player, includes a locking mechanism having a locking lever biased about a shaft to a locking po- sition to lock the cover into a closed position; a first re- lease mechanism including a release link rotatably mounted on the shaft for biasing the locking lever to an unlocked posi- tion, a reciprocable rod connected to the release link and an electromagnetic plunger for actuating the reciprocable rod when power is supplied to the apparatus and when the ro- tational speed of the record disk falls below a predetermined value wherein the release link biases the locking lever to the unlocked position; and a second release mechanism in- cluding an arm rotatably mounted on the shaft for biasing the locking lever to the unlocked position, a stop lever connected to the arm through an operating link, a positioning mechanism for positioning the arm into opposing relation to the lock- ing lever when the power supplied to the record player is interrupted so that the stop lever can be actuated to cause the arm to bias the locking lever to the unlocked position and to position the arm out of the opposing relation when power is supplied to the record player so that the arm cannot bias the locking lever to the unlocked position.
384726
Gowling Lafleur Henderson Llp
Sony Corporation
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