Patent ID: 11867275
Assignee: GATES CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. A tuning device for an MGU belt system, the tuning device comprising:
a pulley structure for receiving a belt on an external surface, the pulley structure fixed to a torsion spring at a first end of the torsion spring and with a second end of the torsion spring fixed to a spring stop ring;
a shaft having at least one recess having an arcuate length defined by a first edge and a second edge; and
the spring stop ring having at least one outwardly extending tab configured to fit within the at least one recess in the shaft, the tab having an arcuate length less than the arcuate length of the recess and configured to repeatedly slide in the recess in a first direction from the first edge to the second edge and in a second direction from the second edge to the first edge;
wherein the pulley structure, the torsion spring and the shaft have a common rotational axis.