Patent ID: 8187211

Claim:
A pivot mechanism for a joint support comprising: a connector having a chamber; and multiple slots formed in the connector; a first support connected pivotally to the connector and having a first arm having an end; and first teeth formed on the end of the first arm and mounted in the chamber of the connector; a first linkage mounted in the first arm; a first dial mounted rotatably in the connector and having an inside; an outside; a first knob attached to the outside of the first dial; and a first positioning protrusion protruding from the outside of the first dial, adjacent to the first knob and mounted in one of the slots of the connector; a first spring mounted around the first dial; and a second support connected pivotally to the connector and having a second arm having an end; second teeth formed on the end of the second arm and mounted in the chamber of the connector and engaging the first teeth of the first arm; a second linkage mounted in the second arm; a second dial mounted rotatably in the connector and having an inside; an outside; a second knob attached to the outside of the second dial; and a second positioning protrusion protruding from the outside of the first dial, adjacent to the second knob and mounted in one of the slots of the connector; and a second spring mounted around the second dial.