Headrest moving device
US-2020031263-A1 · Jan 30, 2020 · US
Headrest moving device
US10875434B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10875434-B2 |
| Application number | US-201816475415-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 17, 2018 |
| Priority date | Jan 20, 2017 |
| Publication date | Dec 29, 2020 |
| Grant date | Dec 29, 2020 |
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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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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
The present invention relates to a headrest moving device including a damper configured to generate a resistance force in a direction opposite to a moving direction when the headrest is moved, wherein, when the headrest is moved, the resistance force is different when the headrest is located at a first position from when the headrest is located at a second position, so that noise can be prevented from being generated and a user can be prevented from recognizing the moving of the headrest as a malfunction when the headrest is moved.
First claim
Opening claim text (preview).
The invention claimed is: 1. A moving device configured to allow a headrest to be movable relative to a seat, comprising: a damper configured to generate a resistance force in a direction opposite to a moving direction when the headrest is moved, wherein, the resistance force when the headrest is located at a first position is different from the resistance force when the headrest is located at a second position when the headrest is moved, wherein the damper includes a damper housing having an accommodating portion configured to accommodate fluid and having a rotor provided with a resistor moving in the fluid, and the resistance force is varied by a recess formed in the damper housing and communicated with the accommodating portion. 2. The moving device of claim 1 , wherein the resistance force at a latter moving stage is larger than the resistance force an initial moving stage. 3. The moving device of claim 1 , wherein the recess is formed to have a smaller cross-sectional area toward one side. 4. The moving device of claim 1 , wherein a stopper disposed inside the accommodating portion is provided at the damper housing, and wherein the resistor is hooked to the stopper when the headrest is located at a return position or a locking position.
Assignees
Inventors
Classifications
- B60N2/841Primary
characterised by their locking devices · CPC title
- B60N2/844Primary
Release mechanisms, e.g. buttons · CPC title
movable to an inoperative or stowed position · CPC title
Measures for elimination or compensation of play or backlash · CPC title
characterised by their adjusting mechanisms, e.g. electric motors · CPC title
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Frequently asked questions
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- What does patent US10875434B2 cover?
- The present invention relates to a headrest moving device including a damper configured to generate a resistance force in a direction opposite to a moving direction when the headrest is moved, wherein, when the headrest is moved, the resistance force is different when the headrest is located at a first position from when the headrest is located at a second position, so that noise can be prevent…
- Who is the assignee on this patent?
- Woobo Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60N2/841. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 29 2020 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).