Patent EP0301429A2 successfully refreshed from Google Patents.
EP0301429A2
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EP
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An ultrasonic driving device
Assignee: Honda Electronics Co Ltd
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Filing: 1988-07-22
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Granted: —
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Expires: 2008-07-22
Abstract
Abstract In the present invention, an electrode (2,3) in both end portions of a piezoelectric vibrator (1) is respectively divided in two (2a,2b,3a,3b), alternative current voltage is supplied to each of electrodes of the both end portions, whereby reversible circumferential progressive wave arises on the both end portions or side portion of a state consisting of the piezoelectric vibrator (1). A member to be driven is composed on each of the both end portions or the side portion of the stator (4).
Inventors
- 👤 Keisuke Honda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 19:19
CPC Classifications
H; H02; H02N; H02N2/00; H02N2/0005; H02N2/001; H02N2/0045; H02N2/10; H02N2/103
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
54 words
An ultrasonic driving device comprising a stator consisting of a columnar piezoelectric vibrator and two or more divided electrodes of the end portions of the piezoelectric vibrator, and a member to be driven composing on one end portion or side portion of the stator, alternative current voltage being supplied to two or more electrode.
Claim 2
Dependent Claim
54 words
An ultrasonic driving device comprising a stator consisting of a columnar piezoelectric vibrator and two or more divided electrodes of the end portions of the piezoelectric vibrator, and a member to be driven composing on one end portion or side portion of the stator, alternative current voltage being supplied to two or more electrode.
Claim 3
Dependent Claim
19 words
An ultrasonic driving device set forth in claim 1 wherein gaps of the electrodes are slightly shifted each other.
Claim 4
Dependent Claim
18 words
An ultrasonic driving device set forth in claim 1 wherein gaps of the electrodes are shifted by 45°.
Claim 5
Dependent Claim
18 words
An ultrasonic driving device set forth in claim 1 wherein gaps of the electrodes are shifted by 90°.
Claim 6
Dependent Claim
86 words
An ultrasonic driving device comprising a base, a stator consisting of a cylindric piezoelectric vibrator and two or more divided electrodes of the end portions of thereof, the stator being fixed with the base, a plate fixed with the base, a member to be driven rotatably supported in a side portion of the stator, a plurality of vanes fixed on the member and springs having one ends fixed on the inside of the member and the other ends contacted with the side portion of the stator.
Claim 7
Dependent Claim
86 words
An ultrasonic driving device comprising a base, a stator consisting of a cylindric piezoelectric vibrator and two or more divided electrodes of the end portions of thereof, the stator being fixed with the base, a plate fixed with the base, a member to be driven rotatably supported in a side portion of the stator, a plurality of vanes fixed on the member and springs having one ends fixed on the inside of the member and the other ends contacted with the side portion of the stator.
Claim 8
Dependent Claim
84 words
An ultrasonic driving device comprising a base, a stator consisting of a cylindric piezoelectric vibrator and two or more divided electrodes of the end portions of thereof, the stator being fixed with the base, a cylindric supporting member fixed with the base, a member to be driven rotatably supported in a side portion of the stator, balls rotatably supported in the member to be driven and put between the cylindric supporting member and the stator, and a plurality of vanes fixed on the member.
Claim 9
Dependent Claim
84 words
An ultrasonic driving device comprising a base, a stator consisting of a cylindric piezoelectric vibrator and two or more divided electrodes of the end portions of thereof, the stator being fixed with the base, a cylindric supporting member fixed with the base, a member to be driven rotatably supported in a side portion of the stator, balls rotatably supported in the member to be driven and put between the cylindric supporting member and the stator, and a plurality of vanes fixed on the member.
References Cited (Backward Citations)
No citation records indexed.
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