Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1997-09-25
2000-03-07
Davis, David D.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 5008
Patent
active
060348445
ABSTRACT:
A head drum assembly for use in a video cassette recorder includes a stationary drum, a supporting shaft fixedly fitted into the stationary drum, a rotary drum mounted around an upper portion of the supporting shaft, an upper and a lower bearing for rotatable supporting the rotary drum. The stationary drum is provided with a bearing cavity having a sliding surface formed at a predetermined angle of inclination to a main frame of the video cassette recorder. In particular, the lower bearing mounted to rotate together with the rotary drum is lubricated by an oil lubricant retained in the bearing cavity, and includes pumping vanes for pumping the oil lubricant in such a way that the oil lubricant is uniformly distributed between the sliding surface and one surface of the lower bearing being in contact with the sliding surface.
REFERENCES:
patent: 4706143 (1987-11-01), Asada et al.
patent: 4961122 (1990-10-01), Sakai et al.
patent: 4972283 (1990-11-01), Kim
patent: 5453892 (1995-09-01), Hasegawa et al.
patent: 5581425 (1996-12-01), Choi
patent: 5667308 (1997-09-01), Nose et al.
patent: 5754374 (1998-05-01), Kim
Daewoo Electronics Co. Ltd.
Davis David D.
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