Claims
- 1. A head access mechanism for accessing magnetic heads to a desired position on at least one magnetic disk in a magnetic device, which comprises:
- (a) magnetic loop generating means having geneally an E-shaped yoke formed by two U-shaped yokes disposed together in a longitudinal direction thereof and abutting together to form a central yoke portion,
- (b) a magnet provided on one side of a wall of each U-shaped yoke of the E-shaped yoke and forming a magnetic gap between each magnet and said central yoke portion;
- (c) a magnetic flux collection plate provided across open ends of each U-shaped yoke opposing the magnetic disk and having a form of a circular arc, one end of each collection plate being fixed only to the yoke while the other end is spaced from the yoke by a slight gap, to thereby mitigate saturation of each collection plate, each collection plate collecting leakage flux of a magnetic circuit;
- (d) an indentation formed in the central yoke portion of the E-shaped yoke;
- (e) a movable coil surounding said central yoke portion having said indentation and movable along said central yoke portion by a carriage attached to said movable coil; and
- (f) a plurality of magnetic heads mounted to said carriage and movable together with said movable coil and said carriage,
- (g) a first E-shaped surface of said E-shaped yoke being formed parallel to the plane of placement of the magnetic disk, thereby reducing the flux leakage in the vicinity of the magnetic heads.
Priority Claims (1)
Number |
Date |
Country |
Kind |
58-176884 |
Sep 1983 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 619,200, filed June 11, 1984, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
58-17989 |
Apr 1983 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Bakken et al., "Self-Locating and Adhering Flux Shield," IBM TDB, Aug. 1983, vol. 26, No. 3B, pp. 1679-1680. |
Continuations (1)
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Number |
Date |
Country |
Parent |
619200 |
Jun 1984 |
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