Driving unit of steering apparatus
US-2022379952-A1 · Dec 1, 2022 · US
Damper for electric power steering
US12377906B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12377906-B2 |
| Application number | US-202318102282-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 27, 2023 |
| Priority date | Jan 28, 2022 |
| Publication date | Aug 5, 2025 |
| Grant date | Aug 5, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A damper for electric power steering disposed on each of opposite ends of a worm shaft includes a rubber unit made of a rubber material, and a damper frame disposed on each of opposite sides of the rubber unit. The rubber unit includes a concave part which is concavely formed by forming a groove on an outer circumference thereof, and a convex part which is a convex remaining part.
First claim
Opening claim text (preview).
What is claimed is: 1. A damper for electric power steering, the damper comprising: a rubber unit made of a rubber material; and a damper frame disposed on each of opposite sides of the rubber unit, wherein the rubber unit comprises a concave part which is concavely formed by forming a groove on an outer circumference thereof, and a convex part which is a convex remaining part, wherein the damper is disposed on each of opposite ends of a worm shaft, wherein a direction in which the opposite ends of the worm shaft are extending is defined as an axial direction, and wherein a width of the concave part in the axial direction is smaller than a width of the convex part in the axial direction. 2. The damper of claim 1 , wherein the concave part of the rubber unit is formed to be parallel to the damper frame. 3. The damper of claim 2 , wherein the concave part is formed in plural number. 4. The damper of claim 1 , wherein the concave part of the rubber unit includes a thread having a whirlwind shape. 5. The damper of claim 1 , wherein the concave part is first compressed and deformed when load is applied thereto. 6. The damper of claim 5 , wherein a compressive deformation amount is reduced according to an increase in load after neighboring convex parts contact each other as the applied load increases.
Assignees
Inventors
Classifications
with means for modifying the spring characteristic (F16F1/371 takes precedence) · CPC title
Compression · CPC title
Linear · CPC title
Variable stiffness · CPC title
having an annular or the like shape, e.g. grommet-type resilient mountings · CPC title
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Frequently asked questions
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- What does patent US12377906B2 cover?
- A damper for electric power steering disposed on each of opposite ends of a worm shaft includes a rubber unit made of a rubber material, and a damper frame disposed on each of opposite sides of the rubber unit. The rubber unit includes a concave part which is concavely formed by forming a groove on an outer circumference thereof, and a convex part which is a convex remaining part.
- Who is the assignee on this patent?
- Hl Mando Corp
- What technology area does this patent fall under?
- Primary CPC classification B62D5/0403. Mapped technology areas include Operations & Transport.
- 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).