Exciting method for elastic vibration member and vibratory driving device
AssigneeSony Corporation
InventorHiroyuki Mori
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an exciting method for an elastic vibration member which may include arranging two support members each formed from an electromechanical energy transducer; supporting the elastic vibration member to the two support members at their front ends; and supplying drive signals having the same frequency and a phase difference to the two support members, circularly or elliptically vibrating the elastic vibration member.
Claims23
An exciting method for an elastic vibration member comprising:
- arranging two support members each formed from an electromechanical energy transducer;
- supporting said elastic vibration member to said two support members at their front ends;
- and
- supplying drive signals having the same frequency and a phase difference to said two support members, circularly or elliptically vibrating said elastic vibration member.
A vibratory driving device comprising:
- a base;
- two support members supported to said base, each of said two support members being formed from an electro-mechanical energy transducer;
- an elastic vibration member supported to said two support members at their front ends;
- and
- control means for inputting drive signals having the same frequency and a phase difference to said two support members.
A vibratory driving device comprising:
- a base;
- two support members supported to said base, and extending in parallel to each other, each of said two support members being formed from an electromechanical energy transducer;
- an elastic vibration member supported to said two support members at their front ends;
- control means for inputting drive signals having the same frequency and a phase difference to said two support members;
- said elastic vibration member being formed with a projecting portion at a position between the front ends of said two support members, said projecting portion projecting on one side of said elastic vibration member opposite to the other side where said two support members are arranged;
- a driven member being supported in opposed relationship to said projecting portion so as to be movable in a plane perpendicular to the longitudinal direction of said two support members;
- said vibratory driving device further including pressure applying means for bringing said driven member into pressure contact with said projecting portion.
A vibratory driving device movably supported between a driven member and a pressure rail extending in parallel to each other, comprising:
- a base kept in slidable contact with said pressure rail;
- two support members supported to said base and extending in parallel to each other in a direction perpendicular to the longitudinal direction of said driven member and said pressure rail;
- an elastic vibration member supported to said two support members at their front ends;
- and
- control means for inputting drive signals having the same frequency and a phase difference to said two support members;
- said elastic vibration member being formed with a projecting portion at a position between the front ends of said two support members, said projecting portion projecting toward said driven member;
- and
- said vibratory driving device further including pressure applying means for bringing said driven member into pressure contact with said projecting portion.
Dependencies are inferred from the claim text.