Piezoelectric loading device
AssigneeJean Walterscheid GmbH
InventorPaul Herchenbach
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Abstract
An actuating device for loading a piezoelectric element including a loading element and a control element each fixed, respectively, upon one of a pair of relatively rotatable parts which may form part of a clutch. Cam projections on the control element intermittently lift the loading element away from the piezoelectric element whenever relative rotation of the two rotatable parts occurs in either direction. Sudden release of the loading element after being raised by the cam projections provides loading on the piezoelectric element to produce an electrical discharge thereby, for example, to indicate the occurrence of clutch slippage.
Claims7
A device for loading a piezoelectric element to give an electrical signal upon relative rotation occurring between two members comprising:
- a loading element mounted with said piezoelectric element on one of said members;
- and a control element mounted on the other of said members, said control element including cam surface means engaging said loading element to cause said loading element to load said piezoelectric element;
- said cam surface means being effective to load said piezoelectric element upon relative rotation between said two members in both a clockwise direction and a counterclockwise direction.
Dependencies are inferred from the claim text.