Floating-type magnetic head with straddle-mounted spring-type flexure with pivot projection
AssigneeSony Corporation
InventorsNaoto Ikeda, Kenji Enomoto
Life of this patent
Estimating the term…
Abstract
With the floating-type magnetic head, a load beam, working as an arm, and a flexure, working as a holder, are separately constructed. The flexure is attached to the base of the load beam by spot welding. An embossed (spherical concaved) portion is formed onto the middle of the displacement portion and is in contact with the base. Because the flexure is stiffer and stronger than a conventional cantilever spring-type flexure, it is possible. to prevent the displacement portion from being plastic-deformed even when there is a shock to the magnetic head when it is on standby. Further, the slider uses the embossed portion as a pivot, making the floating more stable.
Claims10
A floating magnetic head having an arm which is positioned slidably along a radial direction of a disc, a slider which is attached to said arm and which floats above a surface of the disc due to a movement of air produced by rotation of the disc, a magnet mounted on the slider, and a holder by which said slider is attached displaceably to the arm, comprising:
- a straddle-mounted spring displacement portion which is formed on said holder, said straddle-mounted spring displacement portion being separate from said arm;
- and
- a projection extending from one of said displacement portion and said arm, said projection being in contact with the other of said displacement portion and said arm and providing a pivot for said displacement portion.
A floating magnetic head having an arm which is movable in a radial direction of a disc, a slider which is attached to a top of said arm and which floats due to a movement of air produced by rotation of the disc, a magnet mounted on said slider, and a holder by which said slider is attached displaceably to said arm, comprising:
- a straddle-mounted spring displacement portion formed on said holder which is separate from said arm;
- and
- a projection extending from said arm so as to be in contact with the middle of said displacement portion, said projection providing a pivot for said displacement portion.
A floating head arrangement comprising:
- an arm adapted for movement over a surface of a rotating disc;
- a displacement portion;
- a ring-shaped frame;
- first and second hinges interconnecting said displacement portion and said ring-shaped frame in a manner which permits the displacement portion to pivot about a first axis relative to said ring-shaped frame;
- first and second stabilizing pieces rigidly connected to a surface of said arm:
- third and fourth hinges interconnecting said ring-shaped frame with said first and second stabilizing pieces so as to permit the ring-shaped frame to pivot relative to said arm about a second axis which extends in a direction normal to the direction in which the first axis extends;
- a ring-shaped stabilizer structure which surrounds said ring-shaped frame in a spaced contact free relationship, said ring-shaped stabilizer structure being integrally connected with said first and second stabilizing pieces;
- a dimple-shaped embossed pivot provided to support a mid point of said displacement portion and to provide a fulcrum point about which the displacement portion is tiltable;
- and
- a slider rigidly connected with said displacement portion, said slider being arranged to extend beyond the displacement portion and to be engageable with said ring-shaped stabilizer structure when said ring-shaped frame rotates about the second axis by more than a predetermined amount.
Dependencies are inferred from the claim text.