Vibration wave driving device

Details Vibration wave driving device Vibration wave driving device

1997-07-22

1999-06-29

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H02N 200

Patent

active

059172690

ABSTRACT:
A long-life vibration wave motor which abrades little and can be driven for long time periods. causes a vibration member to form a vibration wave and thereby moves the vibration member and a contact member in tight contact with the vibration member relative to each other by a frictional force. The vibration wave motor includes a sliding material made from hard particles and a soft metal softer than the hard particles and having a sliding surface obtained by projecting the hard particles by 0.2 to 2 .mu.m from the surface of the soft metal used in one of two contact portions of the vibration member and the contact member.

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