Rack-assist-type electric power steering apparatus
US-2019161110-A1 · May 30, 2019 · US
Steering device for vehicle
US12391304B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12391304-B2 |
| Application number | US-202217710193-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 31, 2022 |
| Priority date | Apr 13, 2021 |
| Publication date | Aug 19, 2025 |
| Grant date | Aug 19, 2025 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A steering device for a vehicle includes a ball nut coupled with a nut pulley; a motor provided with a motor pulley connected with the nut pulley through a belt; a housing receiving the nut pulley, the belt, and the motor pulley; and a plurality of supports protruding from an inner circumferential surface of the housing to prevent the belt from jumping off the motor pulley.
First claim
Opening claim text (preview).
What is claimed is: 1. A steering device for a vehicle, comprising: a ball nut coupled with a nut pulley; a motor provided with a motor pulley connected with the nut pulley through a belt; a housing receiving the nut pulley, the belt, and the motor pulley; and a plurality of supports protruding from an inner circumferential surface of the housing to prevent the belt from jumping off the motor pulley, wherein the plurality of supports are formed in a portion, surrounding the motor pulley, of the inner circumferential surface of the housing, and wherein the plurality of supports are provided in a first position facing each of two opposite ends of the belt contacting the motor pulley and a second position facing a center of a portion of the belt contacting the motor pulley. 2. The steering device of claim 1 , wherein each end of the plurality of supports faces an outer surface of the belt. 3. The steering device of claim 2 , wherein a gap between the end of the support and the outer surface of the belt is smaller than a height of gear teeth of the motor pulley. 4. The steering device of claim 3 , wherein the end of the support contacts the belt. 5. The steering device of claim 2 , wherein the end of the support is formed to have a curved surface. 6. The steering device of claim 5 , wherein the end of the support is formed to be convex. 7. The steering device of claim 5 , wherein the end of the support is formed to be concave. 8. The steering device of claim 7 , wherein the end of the support is formed in a shape complementary to an opposite portion of the belt.
Assignees
Inventors
Classifications
Gearboxes for gearing with endless flexible members · CPC title
Means for guiding or supporting belts, ropes, or chains (construction of pulleys F16H55/36) · CPC title
- B62D5/0424Primary
the axes of motor and final driven element of steering gear, e.g. rack, being parallel · CPC title
Toothed belt pulleys · CPC title
characterised by constructional features, e.g. common housing for motor and gear box · CPC title
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Frequently asked questions
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- What does patent US12391304B2 cover?
- A steering device for a vehicle includes a ball nut coupled with a nut pulley; a motor provided with a motor pulley connected with the nut pulley through a belt; a housing receiving the nut pulley, the belt, and the motor pulley; and a plurality of supports protruding from an inner circumferential surface of the housing to prevent the belt from jumping off the motor pulley.
- Who is the assignee on this patent?
- Hl Mando Corp
- What technology area does this patent fall under?
- Primary CPC classification B62D5/0424. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 19 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).