Abstract:
A head suspension for a disk drive includes a plate that is easily and correctly be attached to a carriage of the disk drive and improves the attaching accuracy and strength of the head suspension to the carriage. The head suspension includes the plate (19) and a load beam. The plate has a boss (23) that is formed separately from the plate. The boss has a base (39) fixed to the plate and a protrusion (41) fitted into a hole (37) of a carriage arm (9) of the carriage. The plate 19 has a through hole (57). The base of the boss is fitted into the through hole and is fixed to the plate. Under this state, the protrusion of the boss protrudes from a first face (61) of the plate, and the base of the boss protrudes from a second face (63) of the plate. An end face of the base of the boss serves as a contact face (51) for a jig (49).
Abstract:
In a suspension for disc drive that comprises a beam portion having an edge portion and a wired flexure attached to the beam portion so as to be superposed thereon and having an extending portion extending across the edge portion of the beam portions the edge portion of the beam portion crossed by the extending portion of the flexure is formed having a chamfered portion for preventing fretting.
Abstract:
A head suspension for a disk drive has a load beam, a base plate, and a recess. The base plate has a thin flange and is capable of improving the attaching accuracy and strength of the head suspension to a carriage arm of the disk drive. The base plate (3A) has the flange (7A) and a boss (9). The flange has a contact face (23A) to be attached to a contact face (39) of the carriage arm (35). The boss is inserted into a hole (37) of the carriage arm and plastically deformed therein to fix the base plate to the carriage arm. The load beam has a rigid part and a resilient part and is supported by the base plate, to apply load on a slider arranged at a front end of the load beam. The recess (31A) is formed on the base plate along a corner (29) between the flange and the boss, to secure a gap relative to the contact face of the carriage arm.
Abstract:
In a suspension comprising a base portion, beam portion, and a hinge member connecting the base portion and the beam portion to each other, a hole for lowering the stiffness of a region of the beam portion near the hinge member is formed in that region. A cover portion closes the opening of the hole.
Abstract:
A head suspension for a disk drive has a base (19) to be attached to a carriage, a load beam (21) having a rigid part (27) and a resilient part (29) supported by the base, to apply load on a data read/write head (13) arranged at a front end (27a) of the rigid part, and a flexure (49) attached to the load beam and supporting the head. The rigid part has a multilayer structure consisting of at least three layers including metal layers (28a, 28b) and a resin layer (28c) interposed between the metal layers. The number of layers of the resilient part is smaller than that of the rigid part.
Abstract:
A base plate chain blank, which is used in the manufacture of a suspension for a hard disk drive, comprises a plurality of base plates arranged in a line at given pitches and a scrap portion connecting the base plates. The base plate chain blank is put in a predetermined position on a load beam chain blank. The base plates are welded individually to load beams that are formed on the load beam chain blank. Thereafter, the base plates and the scrap portion are cut off by means of a die, whereby the scrap portion is separated. The base plate chain blank has notches arranged along cuttable portions at which the scrap portion is to be cut.
Abstract:
A suspension for disc drive comprises a base portion, a beam portion formed of the same material as the base portion and made thinner than the base portion by partial etching, and a hinge member connecting the base portion and the beam portion to each other. In manufacturing this suspension, a platelike semi-finished suspension, which integrally includes a base portion, a beam portion, and a connecting portion connecting the base portion and the beam portion to each other, is first manufactured. The thickness of the beam portion of the semi-finished suspension is reduced by partial etching. Thereafter, the base portion and the beam portion are connected by means of the hinge member, and moreover, the connecting portion is separated from the base portion and the beam portion.
Abstract:
A suspension for disc drive comprises a base plate, a load beam attached to the base plate, and a flexure attached to the load beam. The load beam includes a rigid body portion, formed of a thick plate independent of the base plate, and a spring portion, formed of a spring member in the form of a thin sheet independent of the rigid body portion. The spring member connects the rigid body portion and the base plate. The spring member is thinner than the rigid body portion and has a lower spring constant. The spring portion is more flexible than the rigid body portion.
Abstract:
A suspension for disc drive comprises a base plate, a load beam attached to the base plate, and a flexure attached to the load beam. The load beam includes a rigid body portion, formed of a thick plate independent of the base plate, and a spring portion, formed of a spring member in the form of a thin sheet independent of the rigid body portion. The spring member connects the rigid body portion and the base plate. The spring member is thinner than the rigid body portion and has a lower spring constant. The spring portion is more flexible than the rigid body portion.
Abstract:
To be capable of precisely positioning a head on a track of a high-density disk rotated at high speed in the disk drive, a head suspension has a plate (3) to be attached to a carriage of the disk drive and turned around a spindle, a load beam (5) having a rigid part (11) and a resilient part (17) and supported by the plate, a front end of the rigid part applying load on a head (13) that writes and reads information to and from the disk, a flexure (7) supporting the head, and an extension (15) having a length (L2) and extending from the plate along the rigid part of the load beam toward the head. The flexure is supported at least by the extension of the plate, and at least supporting the flexure.