High-offset belt tensioner with counterbalance torsion spring force
AssigneeMuviq USA, LLC
InventorAnthony E. Lannutti
Life of this patent
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Abstract
A high-offset belt tensioner has a base having a pivot tube that defines a first axis of rotation, an arm having a pivot tube-receiving body rotatably seated over the pivot tube and having a pulley pivot tube that defines a second axis of rotation. A torsion spring is seated around an exterior surface of the pivot tube-receiving body with a first spring end attached to the base and a second spring end oriented and seated in the pulley pivot tube. A pulley is seated on the pulley pivot tube and rotatable thereabout. A dust cover is seated on the pulley pivot tube juxtaposed to the pulley and a first end of the pivot tube is deformed toward the dust cover to retain the pulley without the use of a pulley bolt.
Claims15
A high-offset belt tensioner comprising:
- a base having a pivot tube that defines a first axis of rotation;
- an arm having an arm arbor rotatably seated over the pivot tube and having a pulley pivot tube that defines a second axis of rotation;
- a torsion spring seated around an exterior surface of the arm arbor with a first spring end attached to the base and a second spring end oriented and seated in the pulley pivot tube;
- a pulley seated on the pulley pivot tube and rotatable thereabout;
- and
- a dust cover seated on the pulley pivot tube juxtaposed to the pulley;
- wherein a first end of the pulley pivot tube is deformed toward the dust cover to retain the pulley without the use of a pulley bolt.
A high-offset belt tensioner comprising:
- a base having a pivot tube that defines a first axis of rotation;
- an arm having an arm arbor rotatably seated over the pivot tube and having a pulley pivot tube that defines a second axis of rotation;
- a torsion spring seated around an exterior surface of the arm arbor with a first spring end attached to the base and a second spring end oriented and seated in the pulley pivot tube;
- a pulley having a roller bearing thereof rotatably mounted to the pulley pivot;
- a dust cover seated on roller bearing;
- wherein the pulley pivot tube extends part way through the roller bearing and the second spring end of the torsion spring extends through the pulley pivot tube, through the roller bearing, and beyond the pulley;
- a nut is seated on the second spring end of the torsion spring in engagement with the dust cover, and the nut defines a projection configured to receive a tool.
Dependencies are inferred from the claim text.