G - Physics – 11 – B
Patent
G - Physics
11
B
352/29
G11B 5/53 (2006.01) F16C 17/08 (2006.01) F16C 33/10 (2006.01)
Patent
CA 1121048
TITLE OF THE INVENTION: Rotary Head Assembly for Magnetic Recording and Reproducing Device ABSTRACT OF THE DISCLOSURE: The present invention relates to a rotary head assembly for a magnetic recording and reproducing device such as VTR. A stationary center shaft is mounted on the side of a stationary cylinder while a rotary sleeve which is fitted over said stationary center shaft for rotation about the axis thereof is disposed on the side of a rotary cylinder. A lubricating oil is injected between the rotary sleeve and the stationary center shaft so that a space between the cylinders may be utilized so as to provide a hydraulic bearing portion. Thus, the rotary head assembly may be made compact in size and to a higher degree of accuracy. In addition, the thrust load carrying point of the hydraulic bearing portion is located on the side of the rotary cylinder, and the portion adjacent to the thrust load carrying point has a sealing arrangement or construction as as to prevent the leakage of lubricating oil and to stabilize the rotation of the rotary cylinder. -1-
320339
Ichiyanagi Takashi
Maruyama Teruo
Gowling Lafleur Henderson Llp
Matsushita Electric Industrial Co. Ltd.
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