Tensioner with spring damper
US-9175753-B2 · Nov 3, 2015 · US
Tensioning device and method for assembling such a tensioning device
US9777807B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9777807-B2 |
| Application number | US-201514737609-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2015 |
| Priority date | Jun 13, 2014 |
| Publication date | Oct 3, 2017 |
| Grant date | Oct 3, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A tensioning device comprising a receiver housing, a lever arm mounted on the receiver housing and rotatable with respect to the receiver housing around a first rotation axis, a pulley mounted on the lever arm and rotatable with respect to the lever arm around a second rotation axis parallel to the first rotation axis, and a spring mounted between the receiver housing and the lever arm and adapted to apply a torque for rotating the lever arm around the first rotation axis. The receiver housing and the lever arm are screwed together around the first rotation axis. The spring applies an axial damping effort, parallel to the first axis, on cooperating threaded portions respectively provided on the receiver housing and on the lever arm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A tensioning device comprising: a receiver housing, a lever arm mounted on the receiver housing and rotatable with respect to the receiver housing around a first rotation axis, a pulley mounted on the lever arm and rotatable with respect to the lever arm around a second rotation axis parallel to the first rotation axis, and a spring mounted between the receiver housing and the lever arm and adapted to apply a torque for rotating the lever arm around the first rotation axis, wherein the receiver housing and the lever arm are screwed together around the first rotation axis, wherein the spring applies an axial damping effort, parallel to the first axis, on cooperating threaded portions respectively provided on the receiver housing and on the lever arm, wherein the cooperating threaded portions are directly formed on the receiver housing and on the lever arm. 2. The tensioning device according to claim 1 , wherein the axial effort is a compression effort exerted by the spring. 3. The tensioning device according to claim 1 , wherein a first end of the spring is integral, in rotation around the first rotation axis, with a first part selected amongst the receiver housing and the lever arm. 4. The tensioning device according to claim 3 , further comprising a second part selected between the receiver housing and the lever arm, wherein the second part is provided with a stop for a second end of the spring. 5. The tensioning device according to claim 4 , wherein the stop allows the second end of the spring to go over the stop upon screwing of the lever arm on the receiver housing and wherein the stop blocks the second end of the spring upon unscrewing of the lever arm with respect to the receiver housing. 6. The tensioning device according to claim 5 , wherein in a direction orthoradial with respect to the first rotation axis, the stop includes a first surface inclined with respect to the first rotation axis, and a second surface parallel to the first rotation axis. 7. The tensioning device according to claim 1 , wherein the receiver housing and the lever arm are made of one of aluminum or an aluminum based alloy.
Assignees
Inventors
Classifications
Progressively advancing of work assembly station or assembled portion of work · CPC title
- F16H7/1281Primary
where the axis of the pulley moves along a substantially circular path · CPC title
Circular path · CPC title
of the dry friction type · CPC title
Torsion springs · CPC title
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Frequently asked questions
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- What does patent US9777807B2 cover?
- A tensioning device comprising a receiver housing, a lever arm mounted on the receiver housing and rotatable with respect to the receiver housing around a first rotation axis, a pulley mounted on the lever arm and rotatable with respect to the lever arm around a second rotation axis parallel to the first rotation axis, and a spring mounted between the receiver housing and the lever arm and adap…
- Who is the assignee on this patent?
- Barillet Jeremie, Cherioux Laurent, Daubignard Christophe, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification F16H7/1281. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 03 2017 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).