US4672256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear vibration wave motor
Assignee: Canon Inc
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Filing: 1985-12-23
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Granted: 1987-06-09
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Expires: 2005-12-23
Abstract
Abstract A vibration wave motor, in which a periodic voltage is applied to an electrostrictive element to generate a travelling vibration wave in the surface of a vibration member thereof, and in which a movable member having a friction member is driven on the vibration member by the vibration wave, includes a guide member for controlling the direction of displacement of the movable member, the guide member being disposed to prevent the movable member from being displaced in directions other than a predetermined direction of movement, and a flexible member connecting the movable member and the friction member.
Inventors
- 👤 Takuo Okuno
- 👤 Hiroyuki Seki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:27
CPC Classifications
H; H02; H02N; H02N2/00; H02N2/02; H02N2/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
156 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a support member for supporting said vibration member on a base plate; a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a guide member disposed along said vibration member, said movable member being permitted to be displaced in a direction in which it is guided by said guide member; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 2
Dependent Claim
156 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a support member for supporting said vibration member on a base plate; a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a guide member disposed along said vibration member, said movable member being permitted to be displaced in a direction in which it is guided by said guide member; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 3
Dependent Claim
18 words
A vibration wave motor according to claim 1, wherein said flexible member is comprised of a spring member.
Claim 4
Dependent Claim
18 words
A vibration wave motor according to claim 1, wherein said flexible member is comprised of a rubber member.
Claim 5
Dependent Claim
148 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a support member for supporting said vibration member on a base plate; a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a restraining member for retraining the displacement of said movable member is directions other than a predetermined direction of movement; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 6
Dependent Claim
148 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a support member for supporting said vibration member on a base plate; a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a restraining member for retraining the displacement of said movable member is directions other than a predetermined direction of movement; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 7
Dependent Claim
144 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a guide member disposed along said vibration member, said movable member being permitted to be displaced in a direction in which it is guided by said guide member; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 8
Dependent Claim
144 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a guide member disposed along said vibration member, said movable member being permitted to be displaced in a direction in which it is guided by said guide member; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 9
Dependent Claim
18 words
A vibration wave motor according to claim 5, wherein said flexible member is comprised of a rubber member.
Claim 10
Dependent Claim
136 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a restraining member for restraining the displacement of said movable member in directions other than a predetermined direction of movement; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 11
Dependent Claim
136 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; a restraining member for restraining the displacement of said movable member in directions other than a predetermined direction of movement; and wherein said vibration wave motor connects said movable member and said friction member together through a flexible member.
Claim 12
Dependent Claim
18 words
A vibration wave motor according to claim 7, wherein said flexible member is comprised of a spring member.
Claim 13
Dependent Claim
133 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: (a) a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; (b) a resilient member disposed between said friction member and said movable member; and (c) an adjusting member for adjusting the resilient force by said resilient member between said friction member and said movable member.
Claim 14
Dependent Claim
133 words
A vibration wave motor in which an electrostrictive member is joined to a vibration member and a periodic voltage is applied to said electrostrictive member to thereby generate a travelling vibration wave in said vibration member and which has a movable member movable on said vibration member by the vibration wave generated in said vibration member, said motor comprising: (a) a friction member integrally connected to said movable member, said friction member being in contact with said vibration member and transmitting thereto a driving force for driving said movable member on said vibration member by said vibration wave; (b) a resilient member disposed between said friction member and said movable member; and (c) an adjusting member for adjusting the resilient force by said resilient member between said friction member and said movable member.
Claim 15
Dependent Claim
58 words
A vibration wave motor according to claim 9, wherein said resilient member is comprised of a spring member, said member is disposed between said friction member and a screw member threadably coupled to a threaded hole formed in said movable member, and said resilient force is adjusted by adjusting the amount of threadable coupling of said screw member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |