Actuator
US-2015377330-A1 · Dec 31, 2015 · US
Linear actuator
US9103423B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9103423-B2 |
| Application number | US-201213727035-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 26, 2012 |
| Priority date | Feb 21, 2012 |
| Publication date | Aug 11, 2015 |
| Grant date | Aug 11, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
There is provided a linear actuator including an output shaft formed with a helical groove, a retainer having a cylindrical shape to receive the output shaft therein, and provided with a plurality of concave portions in dotted manner at positions of an inner peripheral surface thereof along the helical groove, and a rotor magnet fixed to the retainer. Balls are retained in the plurality of concave portions, respectively, and when the retainer is rotated, the balls are moved along the helical groove of the output shaft in a state where the balls are retained in the concave portions.
First claim
Opening claim text (preview).
What is claimed is: 1. A linear actuator comprising: an output shaft formed with a helical groove; a retainer having a cylindrical shape which receives the output shaft therein, and provided with a plurality of concave portions spaced from each other at positions of an inner peripheral surface thereof along the helical groove; a pair of sleeves having a cylindrical shape and mounted on a circumference of the retainer from a front side and a rear side in an axial direction; a…
Assignees
Inventors
Classifications
- F16H25/2204Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9103423B2 cover?
- There is provided a linear actuator including an output shaft formed with a helical groove, a retainer having a cylindrical shape to receive the output shaft therein, and provided with a plurality of concave portions in dotted manner at positions of an inner peripheral surface thereof along the helical groove, and a rotor magnet fixed to the retainer. Balls are retained in the plurality of conc…
- Who is the assignee on this patent?
- Minebea Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16H25/2204. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 11 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).