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Class 360/267.1 - Cam


Subclass of Class 360 - Dynamic magnetic information storage or retrieval
Definition: Subject matter wherein linear head movement is achieved
No. of patents: 25
Last issue date: 05/21/1996


NumberTitleIssue Date
5519553Coarse and fine head positioning apparatus which uses a slidable shaft for fine positioning
This invention provides a small-sized and easy-assembling head positioning apparatus having a coarse moving mechanism and fine moving mechanism, by which the desired fine moving accuracy is easy to attain. A head positioning apparatus has a first stepping...
05/21/1996
5313446Disc drive device having a head carriage
A disc drive device has a head mounted on a head carriage with a head moving support mechanism which is capable of moving the head to the extent of one track pitch. The device is arranged to advance the head for a plurality of recording tracks on a disc-s...
05/17/1994
5303103Head drive mechanism with resilient signal transmitting member
A head drive mechanism is disclosed which is associated with a disk drive device for rotatably mounting a disk member. The head drive mechanism comprises a head member capable of recording signals on the disk member and reproducing the same from the disk ...
04/12/1994
5245490Disc recording and/or reproducing apparatus including a head positioning mechanism having a spiral cam for positioning a head at a reference position
A magnetic disc recording and/or reproducing apparatus in which a magnetic disc cassette containing a magnetic disc provided with a center hub is loaded so that the center hub engages with a rotary shaft of a disc rotating motor to rotate the magnetic dis...
09/14/1993
5062019Method and apparatus for accurately positioning a magnetic recording and reproducing head
A magnetic disk recording and reproducing apparatus is provided having a carriage which supports a magnetic head moving in radial directions about a magnetic disk which is rotatably supported on a body of the apparatus, a cam which is rotatable about a ro...
10/29/1991
5005098Disk drive with stabilizer block for insuring stable contact between a read/write head and a flexible recording medium
A disk drive unit includes a disk stabilizer block supporting a reading and/or writing head. The disk stabilizer block is formed a surface to sealingly contact with a mating surface of the disk. At least one void is formed on the disk stabilizer block for...
04/02/1991
4989109Apparatus for accurately positioning a magnetic recording and reproducing head
A magnetic disk recording and reproducing apparatus is provided having a carriage which supports a magnetic head moving in radial directions about a magnetic disk which is rotatably supported on a body of the apparatus, a cam which is rotatable about a ro...
01/29/1991
4959740Disc recording and/or reproducing apparatus including means for minimizing the effects of temperature changes
A recording and/or reproducing apparatus for recording on and/or reproducing from a recording medium. The apparatus includes a head supported by a head mount movable in the radial direction of the recording medium and a head positioning member for displac...
09/25/1990
4872077Recording and/or reproducing apparatus with adjustments for positioning head and a moving device using the same
A recording and/or reproducing apparatus arranged to use a rotary type record bearing medium, including a rotating member for rotating the medium about an axis, a recording and/or reproducing head, a head carriage carrying the head and movable to shift th...
10/03/1989
4864445Head loading mechanism for recording and/or reproducing apparatus
A recording and/or reproducing apparatus includes a recording and/or reproducing head; a head control device for moving the head along a recording surface of a medium and for shifting the head into condition away from the surface of the medium; a drive so...
09/05/1989
4833557Transducer shifting device
A carriage shifting device of a recording or reproducing apparatus comprises a transducer which is arranged to perform a recording or reproducing operation on a disc-shaped recording medium, a carriage arranged to shift the transducer along the recording ...
05/23/1989
4829394Device for detecting reference position of magnetic head
A device is disclosed for detecting a position of reference for the movement of a magnetic head when the magnetic head is moved by a driving force from a rotary driving source in the radial direction of a magnetic disc. A plurality of rotary members havin...
05/09/1989
4827365Assembly for accessing information recording medium
An assembly for accessing information recording tracks of an information storage medium comprises a transducer for recording and/or reproducing information; a transducer support carriage for advancing the transducer; a driving force generator for producin...
05/02/1989
4802040Disk-type recording and reproducing apparatus
A disc-type recording and reproducing system in which only a single motor is required for rotating the disc and for moving a magnetic head radially with respect to the disc. The system includes a continuously rotating body, a coupling rotary body rotated ...
01/31/1989
4763214Head drive mechanism for electronic still camera
Disclosed is a recording apparatus which is capable of efficiently driving a recording head with simple construction. The recording apparatus includes first and second slide members which are coupled through a spring to each other. The first slide member ...
08/09/1988
4750068Mechanism for moving a magnetic head
A mechanism for moving a magnetic head of a type at least having a chassis, a motor mounted on the chassis, a lead screw driven by the motor either in a normal rotational direction or in a reverse rotational direction, guide shafts mounted on the chassis,...
06/07/1988
4747003Head shifting device for information recording and/or reproducing apparatus
A head shifting device having a movable head carriage mechanism which carries a head is movable to shift the head to a selected position on a record bearing medium. A moving mechanism which is arranged to move the head carriage mechanism is provided with ...
05/24/1988
4716481Recording and/or reproducing apparatus having an imposed head shifting feature
A recording or reproducing apparatus having a recording or reproducing head, a spring member, a reset member for charging the spring member, a carriage member for moving the recording or reproducing head by the driving force of the spring member and a con...
12/29/1987
4679105Head positioning assembly for a disk drive
The invention is a head positioning assembly (10) for use with a conventional disk drive (12). The assembly (10) is adapted to position the ready/write head (22) on a rotating diskette (21) and includes a locating disk (30) provided with a cardioid cam gr...
07/07/1987
4665453Floppy disc recording and/or reproducing apparatus
A floppy disc recording and/or reproducing apparatus includes a driving shaft for rotationally driving a floppy disc, a cam body having a cam part, and a driving mechanism for rotating the driving shaft and the cam body independently of each other. A pair...
05/12/1987
4630159Magnetic disc recording and/or reproducing apparatus
In an apparatus for recording and/or reproducing signals on a flexible disc which is rotatably mounted in a jacket having an indicator for indicating the number of tracks on which the signals have already been recorded, a transducer records and/or reprodu...
12/16/1986
4626944Positioning device for scanning means in a disk drive unit
A positioning device, comprising a cylindrical guide element and a guide surface, is so designed that an angle of less than 90°, especially of from 1° to 80°, is formed between an axis at right angles to the direction of movement of the guide element o...
12/02/1986
4198666Positioning device for a write/read magnetic head in a magnetic-disc data storage device
A positioning device for a write/read magnetic head in a magnetic disc data storage device comprising a motor-driven guide disc, with a spiral-shaped guide wall arranged at right angles to the plane of the guide disc, for a guide element in the form of a ...
04/15/1980
4131923Magnetic-head locating arrangement for floppy-disk mechanisms
In one illustrated embodiment a generally conical locating member for a transducer head has a guide surface extending thereabout in successive turns of progressively increasing radius. In another embodiment two generally conical sections provide respectiv...
12/26/1978
3950783Disk file access mechanism
An access mechanism for a vertical stack of magnetic disks including a mechanism carriage moveable back and forth horizontally by a prime mover, an access arm having a magnetic head adjacent its end and carried by a carriage moveable along slide shafts mo...
04/13/1976
 
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