Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – With particular drive
Patent
1997-01-17
1998-04-07
Darling, John P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
With particular drive
2423565, 2423567, G11B 1544
Patent
active
057354766
ABSTRACT:
An improved reel driving apparatus for a magnetic recording and reproducing apparatus which is capable of simplifying the construction of a reel mechanism which requires different rotation torques of normal and reverse rotation directions. The apparatus includes a reversible motor, a transmission gear which is inserted onto a shaft between a supply reel and a take-up reel and is rotatable by a rotational force from the reversible motor, a slip mechanism having an input gear drivingly connected with the transmission gear and an output gear having a pair of gear portions, with the input gear receiving the rotational force from the input gear through a friction member, a lifting and lowering gear having a pair of gear portions, which are selectively connected with the gear portions of the output gear by a lifting and lowering member, and being rotated, lifted, and lowered with respect to the shaft, and an idler gear which is always connected with the lifting and lowering gear for selectively transferring a rotational force from the lifting and lowering gear to one of supply and take-up reels.
REFERENCES:
patent: 3976263 (1976-08-01), Suzuki
patent: 5251845 (1993-10-01), Ryu
patent: 5501408 (1996-03-01), Kang et al.
Kim Tae Hyung
Lee Yong Sang
Darling John P.
LG Electronics Inc.
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