Dual arm tensioner

Patent metadata

Field	Value
Publication number	US-9651122-B2
Application number	US-201514615151-A
Country	US
Kind code	B2
Filing date	Feb 5, 2015
Priority date	Feb 5, 2015
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A tensioner comprising a first pivot arm having a first pulley journalled thereto and engagable with a mounting surface through a first pivot axis, a second pivot arm having a second pulley journalled thereto, the second pivot arm pivotally engaged to the first pivot arm through a second pivot axis, the second pivot axis disposed from the first pivot axis, a biasing member engaged between the first pivot arm and the second pivot arm urging the first pulley toward the second pulley, and the second pivot axis is between the first pulley and the first pivot axis.

First claim

We claim:

1. A tensioner comprising:
a first pivot arm having a first pulley journalled thereto and engagable with a mounting surface through a first pivot axis;
a second pivot arm having a second pulley journalled thereto;
the second pivot arm pivotally engaged to the first pivot arm through a second pivot axis, the second pivot axis disposed from the first pivot axis;
a biasing member coiled about the first pivot axis engaged with the first pivot arm and the second pivot arm urging the first pulley toward the second pulley; and
the second pivot axis is between the first pulley and the first pivot axis.

2. The tensioner as in claim 1 , wherein the first pivot arm has an arcuate form.

3. The tensioner as in claim 2 , wherein the first pivot arm is concave toward the second pivot arm.

4. The tensioner as in claim 1 , wherein the second pivot arm has an arcuate form.

5. The tensioner as in claim 4 , wherein the second pivot arm is concave toward the first pivot arm.

6. The tensioner as in claim 1 , wherein the second pulley is a greater distance than the first pulley from the first pivot axis in the unloaded condition.

7. The tensioner as in claim 1 , wherein the second pulley is a greater distance than the first pulley from the second pivot axis in the unloaded condition.

Assignees

• Gates Corp

Inventors

• Harvey John
• Stegelmann Oliver

Classifications

• F16H7/129 Primary

  with means for impeding reverse motion · CPC title

• F16H2007/0893

  Circular path · CPC title

• F16H2007/0806

  Compression coil springs · CPC title

• F16H2007/081

  Torsion springs · CPC title

• F16H2007/0865

  Pulleys · CPC title