# US 2021/0280209 A1 · Suspension assembly and disk device

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- Number: US 2021/0280209 A1
- Document ID: US20210280209A1
- Status: Published application
- Kind: A1
- Application number: 16/939,352
- Filed: 2020-07-27
- Published: 2021-09-09
- Earliest claimed: 2020-03-04
- Assignees: Kabushiki Kaisha Toshiba; Toshiba Electronic Devices & Storage Corporation
- Applicants: Kabushiki Kaisha Toshiba; Toshiba Electronic Devices & Storage Corporation
- Inventors: Yasuo Suzuki; Takuma Kido
- Web page: https://patentgrep.com/patent/US20210280209A1

## CPC

- G11B 5/4826: {Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive (G11B5/484 takes precedence; details of head housings or structures G11B5/10, G11B5/127; adjustment relative to the record carrier G11B5/56)}
- G11B 5/4833: {Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the head (G11B5/484 takes precedence)}
- G11B 5/4846: {Constructional details of the electrical connection between arm and support}
- G11B 5/4853: {Constructional details of the electrical connection between head and arm}
- G11B 5/4873: {the arm comprising piezoelectric or other actuators for adjustment of the arm}
- G11B 21/22: while the head is out of operative position
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

According to one embodiment, a suspension assembly includes a support plate including a distal end and a proximal end portion, a wiring member including a gimbal portion and provided. on the support plate, and a magnetic head mounted on the gimbal portion. The gimbal portion includes a first end portion located on a side of the proximal end portion with respect to the magnetic head and welded to the support plate, a second end located on a side of the distal end portion with respect to the magnetic head and welded to the support plate, a tongue portion on which the magnetic head is mounted, located between the first end portion and the second end portion, and supported so as to be displaceable relative to the support plate, and a limiter opposing the tongue portion with a gap.

## Claims

### Claim 1

A suspension assembly, comprising:
a support plate including a distal end portion and a proximal end portion;
a wiring member comprising a gimbal portion and provided on the support plate; and
a magnetic head mounted on the gimbal portion, wherein
the gimbal portion comprises a first end portion located on a side of the proximal end portion with respect to the magnetic head and welded to the support plate, a second end portion located on a side of the distal end portion with respect to the magnetic head and welded to the support plate, a tongue portion on which the magnetic head is mounted, located between the first end portion and the second end portion, and supported so as to be displaceable relative to the support plate, the tongue portion including a first surface on which the magnetic head is mounted and a second surface opposite to the first surface and facing the support plate, and a limiter overlapping the tongue portion in a direction crossing the first surface and opposing the first surface of the tongue portion with a gap.

### Claim 2 (depends on 1)

The suspension assembly of claim 1, wherein
the gimbal portion includes a plurality of limiters, each of the limiters being opposed to the first surface of the tongue portion with a gap.

### Claim 3 (depends on 1)

The suspension assembly of claim 1, wherein
the gimbal portion comprises an elastically deformable outrigger connected to the first end portion and the tongue portion, and a connecting frame connected to the second end portion and the outrigger, and
the limiter is provided at the connecting frame and opposed to an end of the tongue portion on a side of the distal end portion with a gap.

### Claim 4 (depends on 1)

The suspension assembly of claim 1, wherein
the gimbal portion comprises an elastically deformable outrigger connected to the first end portion and the tongue portion, and a connecting frame connected to the second end portion and the outrigger, and
the limiter is provided at the outrigger and opposed to an end of the tongue portion on a side of the proximal end portion with a gap.

### Claim 5 (depends on 1)

The suspension assembly of claim 1, wherein
the gimbal portion comprises an elastically deformable outrigger connected to the first end portion and the tongue portion, and a connecting frame connected to the second end portion and the outrigger, and
the limiter is provided at the second end portion and opposed to an end of the tongue portion on a side of the distal end portion with a gap.

### Claim 6 (depends on 5)

The suspension assembly of claim 5, wherein
the wiring member comprises a metal plate disposed on the support plate, and a flexible wiring substrate fixed onto the metal plate, and
in the gimbal portion, the first end portion, the second end portion, the outrigger, the connecting frame, and the limiter are formed by the metal plate.

### Claim 7 (depends on 3)

The suspension assembly of claim 3, wherein
the wiring member comprises a metal plate disposed on the support plate, and a flexible wiring substrate fixed onto the metal plate, and
in the gimbal portion, the first end portion, the second end portion, the outrigger, the connecting frame, and the limiter are formed by the metal plate.

### Claim 8 (depends on 4)

The suspension assembly of claim 4, wherein
the wiring member comprises a metal plate disposed on the support plate, and a flexible wiring substrate fixed onto the metal plate, and
in the gimbal portion, the first end portion, the second end portion, the outrigger, the connecting frame, and the limiter are formed by the metal plate.

### Claim 9

A disk device, comprising:
a disk-shaped recording medium comprising a recording layer; and
a suspension assembly, comprising:
a support plate including a distal end portion and a proximal end portion;
a wiring member comprising a gimbal portion and provided on the support plate; and
a magnetic head mounted on the gimbal portion,
wherein the gimbal portion comprises a first end portion located on a side of the proximal end portion with respect to the magnetic head and welded to the support plate, a second end portion located on a side of the distal end portion with respect to the magnetic head and welded to the support plate, a tongue portion on which the magnetic head is mounted, located between the first end portion and the second end portion, and supported so as to be displaceable relative to the support plate, and a limiter opposing the tongue portion with a gap.

### Claim 10 (depends on 9)

The disk device of claim 9, wherein
the gimbal portion includes a plurality of limiters, each of the limiters being opposed to the tongue portion with a gap.

### Claim 11 (depends on 9)

The disk device of claim 9, wherein
the gimbal portion comprises an elastically deformable outrigger connected to the first end portion and the tongue portion, and a connecting frame connected to the second end portion and the outrigger, and
the limiter is provided at the connecting frame and opposed to an end of the tongue portion on a side of the distal end portion with a gap.

### Claim 12 (depends on 9)

The disk device of claim 9, wherein
the gimbal portion comprises an elastically deformable outrigger connected to the first end portion and the tongue portion, and a connecting frame connected to the second end portion and the outrigger, and
the limiter is provided at the outrigger and opposed to an end of the tongue portion on a side of the proximal end portion with a gap.

### Claim 13 (depends on 9)

The disk device of claim 9, wherein
the gimbal portion comprises an elastically deformable outrigger connected to the first end portion and the tongue portion, and a connecting frame connected to the second end portion and the outrigger, and
the limiter is provided at the second end portion and opposed to an end of the tongue portion on a side of the distal end portion with a gap.

### Claim 14 (depends on 13)

The disk device of claim 13, wherein
the wiring member comprises a metal plate disposed on the support plate, and a flexible wiring substrate fixed onto the metal plate, and
in the gimbal portion, the first end portion, the second end portion, the outrigger, the connecting frame, and the limiter are formed by the metal plate.

### Claim 15 (depends on 11)

The disk device of claim 11, wherein
the wiring member comprises a metal plate disposed on the support plate, and a flexible wiring substrate fixed onto the metal plate, and
in the gimbal portion, the first end portion, the second end portion, the outrigger, the connecting frame, and the limiter are formed by the metal plate.

### Claim 16 (depends on 12)

The disk device of claim 12, wherein
the wiring member comprises a metal plate disposed on the support plate, and a flexible wiring substrate fixed onto the metal plate, and
in the gimbal portion, the first end portion, the second end portion, the outrigger, the connecting frame, and the limiter are formed by the metal plate.