Gimbal design with increased dimple contact force
US-12020732-B2 · Jun 25, 2024 · US
Suspension assembly with dimple features for engagement with actuator arm
US12380921B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12380921-B2 |
| Application number | US-202318195225-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2023 |
| Priority date | May 12, 2022 |
| Publication date | Aug 5, 2025 |
| Grant date | Aug 5, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A suspension assembly includes a baseplate having an upper surface and a lower surface opposite the upper surface, a load beam mounted to the baseplate, a cylindrical hub extending from the upper surface, wherein the cylindrical hub comprises an inner surface that defines a swage hole extending through the baseplate, and a plurality of dimples protruding from the upper surface of the baseplate, wherein each of the dimples includes a rounded side protruding from the upper surface of the baseplate and terminating in an apex. The apexes of the dimples define a contact plane for engaging with the lower surface of the actuator arm swaged to the cylindrical hub.
First claim
Opening claim text (preview).
What is claimed is: 1. A suspension assembly, comprising: a baseplate having an upper surface and a lower surface opposite the upper surface; a load beam mounted to the baseplate; a cylindrical hub extending from the upper surface, wherein the cylindrical hub comprises an inner surface that defines a swage hole extending through the baseplate; a plurality of dimples protruding from the upper surface of the baseplate, the plurality of dimples comprising two dimples disposed on a first side of the cylindrical hub disposed between the cylindrical hub and the load beam, with each of the two dimples being disposed offset of a central axis of the baseplate, and a third dimple disposed on a second side of the cylindrical hub and on the central axis of the baseplate, the second side opposing the first side, wherein each of the dimples includes a rounded side protruding from the upper surface of the baseplate and terminating in an apex; and an actuator arm having an opening, wherein the cylindrical hub extends into the opening such that an outer surface of the cylindrical hub is engaged with an inner surface of the opening, wherein a first end of the actuator arm comprises a curvature that corresponds with a curvature of the opening, and wherein the apexes of the dimples provide a contact plane above the upper surface of the baseplate for engaging with a lower surface of the actuator arm swaged to the baseplate. 2. The suspension assembly of claim 1 , wherein each of the dimples includes a rounded side recessed into the lower surface of the baseplate.
Assignees
Inventors
Classifications
Mounting or aligning of arm assemblies, e.g. actuator arm supported by bearings, multiple arm assemblies, arm stacks or multiple heads on single arm (G11B5/484 takes precedence) · CPC title
- G11B5/4833Primary
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) · CPC title
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- What does patent US12380921B2 cover?
- A suspension assembly includes a baseplate having an upper surface and a lower surface opposite the upper surface, a load beam mounted to the baseplate, a cylindrical hub extending from the upper surface, wherein the cylindrical hub comprises an inner surface that defines a swage hole extending through the baseplate, and a plurality of dimples protruding from the upper surface of the baseplate,…
- Who is the assignee on this patent?
- Magnecomp Corp
- What technology area does this patent fall under?
- Primary CPC classification G11B5/4833. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Aug 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).