JPH0377293U - - Google Patents
Info
- Publication number
- JPH0377293U JPH0377293U JP3666990U JP3666990U JPH0377293U JP H0377293 U JPH0377293 U JP H0377293U JP 3666990 U JP3666990 U JP 3666990U JP 3666990 U JP3666990 U JP 3666990U JP H0377293 U JPH0377293 U JP H0377293U
- Authority
- JP
- Japan
- Prior art keywords
- ball
- support pin
- coil spring
- inner ring
- piezoelectric element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008602 contraction Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
Description
第１図、第３図、第４図、第５図は、本考案の
夫々別の実施例を示す断面図、第２図は、従来例
を示す断面図である。
１…支持板、２…支持ピン、３…振動体、４…
ロータ、５…コイルバネ、６…バネ押え座、７…
固定ネジ、８…支持体、９…ベアリング、３ａ…
圧電素子、３ｂ…凸部、４ａ…内輪、４ｂ…ボー
ル位置決め溝Ａ、４ｃ…ボール位置決め溝Ｂ、４
ｄ…ボール、４ｅ…外輪、４ｆ…コイルバネ受け
溝、６ａ…溝部、８ａ…軸部、８ｂ…振動体部、
８ｃ…ベンデイング板部、１０…内輪押え、４ｇ
…面カツト部、４ｈ…内輪凸部、２ａ…支持ピン
凸部。
1, 3, 4, and 5 are sectional views showing different embodiments of the present invention, and FIG. 2 is a sectional view showing a conventional example. 1... Support plate, 2... Support pin, 3... Vibrating body, 4...
Rotor, 5...Coil spring, 6...Spring retainer, 7...
Fixing screw, 8... Support, 9... Bearing, 3a...
Piezoelectric element, 3b...Protrusion, 4a...Inner ring, 4b...Ball positioning groove A, 4c...Ball positioning groove B, 4
d...Ball, 4e...Outer ring, 4f...Coil spring receiving groove, 6a...Groove portion, 8a...Shaft portion, 8b...Vibrating body portion,
8c...Bending plate part, 10...Inner ring presser, 4g
…Face cut portion, 4h…Inner ring convex portion, 2a…Support pin convex portion.
Claims (1)
と、該圧電素子に圧接され前記圧電素子の伸縮運
動によるたわみ進行波で摩擦駆動するロータとを
有する超音波モータにおいて、支持板に固定した
支持ピンを設け、圧電素子を接合した振動体を前
記支持ピンに固着し、該支持ピンにより軸着され
、コイルバネを受ける溝部を形成した内輪と、該
内輪に形成したボール位置決め溝に持設されたボ
ールと、該ボールを介した位置に前記内輪に形成
したボール位置決め溝と略同一な溝部を形成した
外輪とによつて構成されたボールベアリングを、
前記振動体に形成された偏位拡大用の凸部の内側
に設けたロータと、該ロータと前記振動体の凸部
とを圧接するコイルバネと、前記支持ピンを中心
とし、コイルバネの他端を受ける溝部を形成した
バネ押え座を、固定ネジにより前記支持ピンに固
定したことを特徴とする、超音波モータの構造。 (2) 前記内輪のコイルバネ受け溝と、コイルバ
ネは、ボールと平面的に重ならない位置に配置し
たことを特徴とする請求項１記載の超音波モータ
の構造。 (3) 前記ボールベアリングの内輪を外輪による
連れ回り防止のための回転止め手段を設けたこと
を特徴とする請求項１記載の超音波モータの構造
。 (4) 前記ボールと同一高さに内輪または支持ピ
ンのどちらか一方に凸部を設けたことを特徴とす
る請求項１記載の超音波モータの構造。[Claims for Utility Model Registration] (1) A superstructure comprising a piezoelectric element, a vibrating body to which the piezoelectric element is bonded, and a rotor that is in pressure contact with the piezoelectric element and is frictionally driven by a flexure traveling wave caused by the expansion and contraction movement of the piezoelectric element. In the sonic motor, a support pin fixed to a support plate is provided, a vibrating body to which a piezoelectric element is bonded is fixed to the support pin, an inner ring is pivoted by the support pin and has a groove for receiving a coil spring, and the inner ring has a support pin fixed to the support plate. A ball bearing constituted by a ball held in a formed ball positioning groove, and an outer ring having a groove portion substantially the same as the ball positioning groove formed in the inner ring at a position via the ball,
A rotor provided inside a convex portion for expanding deflection formed on the vibrating body, a coil spring that presses the rotor and the convex portion of the vibrating body, and a coil spring with the other end of the coil spring centered on the support pin. A structure of an ultrasonic motor, characterized in that a spring retaining seat having a receiving groove formed therein is fixed to the support pin with a fixing screw. (2) The structure of an ultrasonic motor according to claim 1, wherein the coil spring receiving groove of the inner ring and the coil spring are arranged at a position that does not overlap the ball in a plane. (3) The structure of the ultrasonic motor according to claim 1, further comprising rotation stopping means for preventing the inner ring of the ball bearing from rotating along with the outer ring. (4) The structure of the ultrasonic motor according to claim 1, characterized in that a convex portion is provided on either the inner ring or the support pin at the same height as the ball.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990036669U JP2562845Y2 (en) | 1989-06-19 | 1990-04-04 | Ultrasonic motor |
| US07/537,358 US5091670A (en) | 1989-06-19 | 1990-06-13 | Ultrasonic motor |
| EP90306671A EP0404511B1 (en) | 1989-06-19 | 1990-06-19 | Ultrasonic motor |
| DE69026650T DE69026650T2 (en) | 1989-06-19 | 1990-06-19 | Ultrasonic motor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1-71908 | 1989-06-19 | ||
| JP7190889 | 1989-06-19 | ||
| JP1990036669U JP2562845Y2 (en) | 1989-06-19 | 1990-04-04 | Ultrasonic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0377293U true JPH0377293U (en) | 1991-08-02 |
| JP2562845Y2 JP2562845Y2 (en) | 1998-02-16 |
Family
ID=31890004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990036669U Expired - Lifetime JP2562845Y2 (en) | 1989-06-19 | 1990-04-04 | Ultrasonic motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562845Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003009553A (en) * | 2001-06-26 | 2003-01-10 | Nidec Copal Corp | Ultrasonic motor device |
| JP2008101420A (en) * | 2006-10-20 | 2008-05-01 | Hidekazu Koyama | Mounting metal fitting for blindfold board, and its mounting method |
| JP2011254584A (en) * | 2010-05-31 | 2011-12-15 | Canon Inc | Vibration wave motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63277482A (en) * | 1987-05-08 | 1988-11-15 | Matsushita Electric Ind Co Ltd | Ultrasonic motor |
-
1990
- 1990-04-04 JP JP1990036669U patent/JP2562845Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63277482A (en) * | 1987-05-08 | 1988-11-15 | Matsushita Electric Ind Co Ltd | Ultrasonic motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003009553A (en) * | 2001-06-26 | 2003-01-10 | Nidec Copal Corp | Ultrasonic motor device |
| JP2008101420A (en) * | 2006-10-20 | 2008-05-01 | Hidekazu Koyama | Mounting metal fitting for blindfold board, and its mounting method |
| JP2011254584A (en) * | 2010-05-31 | 2011-12-15 | Canon Inc | Vibration wave motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2562845Y2 (en) | 1998-02-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R323533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |