WO2010113764A1 - 超音波モータ装置 - Google Patents
超音波モータ装置 Download PDFInfo
- Publication number
- WO2010113764A1 WO2010113764A1 PCT/JP2010/055247 JP2010055247W WO2010113764A1 WO 2010113764 A1 WO2010113764 A1 WO 2010113764A1 JP 2010055247 W JP2010055247 W JP 2010055247W WO 2010113764 A1 WO2010113764 A1 WO 2010113764A1
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- WIPO (PCT)
- Prior art keywords
- ultrasonic motor
- motor unit
- case
- plate
- fixed
- Prior art date
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- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/028—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors along multiple or arbitrary translation directions, e.g. XYZ stages
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/005—Mechanical details, e.g. housings
- H02N2/0055—Supports for driving or driven bodies; Means for pressing driving body against driven body
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/026—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors by pressing one or more vibrators against the driven body
Definitions
- the present invention relates to an ultrasonic motor device.
- an XY stage described in Patent Document 1 As a conventional ultrasonic motor device, for example, an XY stage described in Patent Document 1 can be cited.
- This XY stage is an XY stage having a fixed base and a moving base that moves the fixed base back and forth linearly, and is arranged on one of the fixed base and the moving base in the moving direction of the mobile base.
- An ultrasonic linear motor comprising at least two or more leg portions, a trunk portion that connects the end portions of the leg portions, and a vibration source that vibrates the leg portions and the trunk portion, respectively.
- the tip of the part is provided in pressure contact with the other of the fixed table or the movable table.
- stage device described in Patent Document 2 is arranged on a flat base, a first stage disposed on the base and driven by a first ultrasonic motor, and disposed on the first stage.
- a second stage driven by a second ultrasonic motor, and a cross roller guide is constituted by a V groove, a guide rail, and the like.
- Patent Document 1 has a problem that the structure of the pressing mechanism and the bearing mechanism is complicated and it is difficult to reduce the size.
- the stage device described in Patent Document 2 has a structure in which the first stage and the second stage are stacked, and even if an ultrasonic motor is attached inside the stage, the configuration becomes complicated, making it difficult to reduce the size and assembling. is there.
- the present invention has been made in view of the above, and an object of the present invention is to provide an ultrasonic motor device that can be easily downsized and has high assemblability.
- an ultrasonic motor device includes a vibration member that periodically vibrates by application of a high-frequency voltage, a case that houses the vibration member, and a movement that contacts the vibration member.
- a first ultrasonic motor unit and a second ultrasonic motor unit each having a member, and an urging member that generates pressure by bringing the moving member and the vibration member into pressure contact with each other;
- the pair of first ultrasonic motor units are disposed on the base member so as to face each other.
- a pair of second ultrasonic motor units are arranged on the first frame so as to face each other.
- the ultrasonic motor device preferably includes one first ultrasonic motor unit.
- the ultrasonic motor device preferably includes one second ultrasonic motor unit.
- the ultrasonic motor device according to the present invention is advantageous in that it can be easily miniaturized and can achieve high assemblability.
- FIG. 1 is a perspective view illustrating a configuration of an ultrasonic motor device according to a first embodiment of the present invention. It is a disassembled perspective view which shows the structure of the ultrasonic motor apparatus which concerns on 1st Embodiment of this invention. It is a disassembled perspective view for demonstrating operation
- FIG. 1 is a perspective view showing the configuration of the ultrasonic motor device according to the first embodiment.
- FIG. 2 is an exploded perspective view showing the configuration of the ultrasonic motor device according to the first embodiment.
- the ultrasonic motor device 100 of the first embodiment includes X-axis drive ultrasonic motor units 111 and 112 (first ultrasonic motor unit), and a Y-axis drive.
- Ultrasonic motor units 113 and 114 second ultrasonic motor unit
- a plate-like base 120 an X plate 140 (first frame)
- a Y plate 130 second frame
- the ultrasonic motor units 111 and 112 are fixed to both ends of the upper surface of the base 120 in the Y direction so as to form a pair.
- the ultrasonic motor unit 111 has its case member (case) fixed with screws to the mounting portions 121 and 122 of the base 120
- the ultrasonic motor unit 112 has its case member (case). ) Is fixed to the mounting portions 123 and 124 of the base 120 with screws.
- the ultrasonic motor unit 111 includes a driven member (moving member) that is movable along the X-axis direction, and connection members 111c and 111d are provided at both ends of the driven member, respectively.
- the ultrasonic motor unit 112 includes a driven member (moving member) that can move along the X-axis direction, and connection members 112c and 112d are provided at both ends of the driven member, respectively.
- the mounting holes 141 and 142 are provided at one end of the X plate 140 in the Y direction, and the mounting holes 143 and 144 are provided at the other end.
- the ultrasonic motor unit 111 is coupled to the lower surface of the X plate 140 by screwing the connecting members 111c and 111d into the mounting holes 141 and 142, respectively.
- the ultrasonic motor unit 112 is coupled to the lower surface of the X plate 140 by screwing the connection members 112c and 112d into the mounting holes 143 and 144, respectively.
- the ultrasonic motor units 111 and 112 are arranged to face each other so as to support the X plate 140 at both ends in the Y direction (FIGS. 2 and 3).
- FIG. 3 is an exploded perspective view for explaining the operation of the X plate 140, and illustration of members such as the Y plate 130 is omitted from FIG.
- connection members 111c and 111d of the ultrasonic motor unit 111 and the connection members 112c and 112d of the ultrasonic motor unit 112 move in the X direction, respectively, and thereby the X plate 140 moves in the X direction.
- the ultrasonic motor units 113 and 114 are fixed to both ends of the lower surface of the X plate 140 in the X direction so as to form a pair.
- the ultrasonic motor unit 113 has its case member (case) screwed to the mounting holes 151 and 152 of the X plate 140 via the screw holes 113c and 113d. Coupled to the bottom surface.
- the ultrasonic motor unit 114 is coupled to the lower surface of the X plate 140 by screwing the case member (case) to the mounting holes 153 and 154 of the X plate 140 through the screw holes 114c and 114d. Is done.
- the ultrasonic motor units 113 and 114 are disposed to face the X plate 140 so as to hang at both ends in the X direction.
- the ultrasonic motor unit 113 includes a driven member (moving member) that can move along the Y-axis direction, and connection members 113a and 113b are provided at both ends of the driven member, respectively.
- the ultrasonic motor unit 114 includes a driven member (moving member) movable along the Y-axis direction, and connection members 114a and 114b are provided at both ends of the driven member, respectively.
- the attachment part 131,132 is provided in the one end of the X direction of the Y plate 130, and the attachment part 133,134 is provided in the other end.
- the ultrasonic motor unit 113 is coupled to the upper surface of the Y plate 130 by screwing the connection members 113a and 113b to the attachment portions 131 and 132, respectively.
- the ultrasonic motor unit 114 is coupled to the upper surface of the Y plate 130 by screwing the connection members 114a and 114b to the attachment portions 133 and 134, respectively.
- the ultrasonic motor units 113 and 114 are arranged to face each other so as to support the Y plate 130 at both ends in the X direction (FIGS. 2 and 4).
- FIG. 4 is an exploded perspective view for explaining the operation of the Y plate 130, and illustration of members such as the X plate 140 is omitted from FIG.
- connection members 113a and 113b of the ultrasonic motor unit 113 and the connection members 114a and 114b of the ultrasonic motor unit 114 move in the Y direction, respectively, and thereby the Y plate 130 moves in the Y direction.
- FIG. 5 is an exploded perspective view showing a configuration example of the ultrasonic motor unit according to the first embodiment.
- FIG. 6 is a perspective view illustrating a configuration example of the ultrasonic motor unit according to the first embodiment.
- connection members 111c and 111d or the connection members are connected to both ends of the driven member 24 (moving member).
- the members 112c and 112d are fixedly used.
- 10 is arranged so that the A direction in which the driven member 24 extends is along the X direction, the height direction (C direction) is along the Y direction, and the thickness direction (B direction) is along the Z direction. .
- connection members 113a and 113b or the connection members 114a and 114b are fixed to both ends of the driven member 24 (moving member), respectively.
- 10 is arranged so that the A direction in which the driven member 24 extends is along the Y direction, the height direction (C direction) is along the X direction, and the thickness direction (B direction) is along the Z direction. .
- the ultrasonic motor unit 10 (linear drive ultrasonic motor) shown in FIGS. 5 and 6 will be described.
- the ultrasonic motor unit 10 includes a vibrator 22 (vibrating member) as an ultrasonic vibrator, a driven member 24, a pressing member 21 (biasing member), a first case member 11, and a guide.
- Rolling members 25, 26, 27, 28 and a second case member 12 are provided as means.
- the vibrator 22, the first case member 11 (case), and the case member 12 (case) all have a substantially rectangular parallelepiped outer shape, and the first housing recess 16 is formed inside the first case member 11.
- the second housing recess 18 is formed inside the case member 12.
- the vibrator 22 and the pressing member 21 are accommodated in order from the opening side (end face 11s side) in the height direction of the ultrasonic motor unit 10 (direction C in FIG. 5).
- the pressing member 21 is a long plate-like leaf spring, and the longitudinal direction thereof is arranged along the longitudinal direction of the ultrasonic motor unit 10 and the first case member 11 (A direction in FIG. 5).
- the guide member 29, the rolling members 25, 26, 27, and 28 are sequentially arranged from the opening side (end surface 12 s side) in the height direction (C direction) of the ultrasonic motor unit 10. Is housed.
- the rolling members 25, 26, 27, and 28 are arranged in two rows along the longitudinal direction of the second case member 12.
- the guide member 29 has a shape in which a long plate-like member is bent at the center in the width direction.
- the guide member 29 is located at a position corresponding to the rolling members 25, 26, 27, and 28 when housed in the second housing recess 18 so that the bent portion is disposed inside the second case member 12.
- the guide holes 29a, 29b, 29c, and 29d are through holes.
- the position of the guide member 29 is preferably fixed by engaging with an engaging portion (not shown) provided in the second accommodating recess 18. With this configuration, the four rolling members 25, 26, 27, 28 are located above the guide hole portions 29 a, 29 b, 29 c, 29 d of the guide member 29 from the lower side in the second housing recess 18 of the case member 12. It is positioned in a state where it can roll by being inserted into each.
- the driven member 24 (moving member) is a shaft-shaped member having a D-shaped cross section, and when the first case member 11 and the second case member 12 are assembled to each other, the flat surface portion 24a has the driver 22a.
- the curved surface portion 24 b is in contact with the rolling members 25, 26, 27, and 28.
- the first case member 11 and the case member 12 are assembled together with the end surface 11s of the first housing recess 16 and the end surface 12s of the second housing recess 18 in contact with each other. This assembly is performed by screwing a case set screw 37 into a screw hole 12 h provided in the second case member 12.
- 1st groove part 11g is formed in the end surface 11s of the 1st accommodating recessed part 16 along the direction (A direction) in which the driven member 24 is driven.
- the second groove 12g is formed so as to correspond to the first groove 11g when the first case member 11 and the second case member 12 are assembled together. Is formed.
- the first groove portion 11g and the second groove portion 12g are arranged to face each other after assembly to form the opening portion 10g.
- the driven member 24 extends toward the outside of the first case member 11 and the second case member 12 through the opening 10g.
- the driven member 24 includes rolling members 25, 26 protruding above the guide hole portions 29a, 29b, 29c, 29d of the guide member 29, 27 and 28 are contacted and supported.
- the driven member 24 is supported by the rolling members 25, 26, 27, 28 arranged along the longitudinal direction of the second case member 12, so that the longitudinal direction of the case member 12, that is, the driven member 24 is It becomes possible to move along the longitudinal direction.
- the upper surface of both end portions in the longitudinal direction of the pressing member 21 can be pressed by a pressing screw 36 (pressure member).
- the tip of the pressing screw 36 extends into the first receiving recess 16 through a screw hole 11 h that is a through hole provided in the upper surface of the first case member 11.
- the pressing member 21 is arranged such that the lower surface of the central portion in the longitudinal direction comes into contact with the support member 23 for positioning the vibrator 22.
- the support member 23 is fixed to the center of the vibrator 22 in the longitudinal direction (direction A in FIG. 5A).
- the vibrator 22 is configured by an ultrasonic vibrator (for example, a piezoelectric element).
- the assembly of the ultrasonic motor unit 10 having the above configuration is performed as follows. First, the pressing member 21 is put into the first housing recess 16 of the first case member 11. Next, the vibrator 22 is fixed to the first case member 11 by fitting the protruding portion of the support member 23 and the engaging portion of the first case member 11.
- the case member 12 is connected to the first case member 11 from the case member 12 side in a state where the driven member 24 is supported by the rolling members 25, 26, 27, 28.
- the second case member 12 is assembled to each other.
- the pressing force by the pressing member 21 is set to a desired value by adjusting the amount of extension of the pressing screw 36 into the first housing recess 16.
- the pressing screw 36 can be fixed by adhering to the screw hole 11 h of the first case member 11.
- the pressing force can be adjusted by changing the material and shape of the pressing member 21.
- the first case member 11 has sufficiently higher rigidity than the pressing member 21, and even if the first case member 11 contacts a member of an external device (not shown), for example, the amount of bending of the pressing member 21 changes. There is no. As a result, the degree of freedom in designing the external device is improved. Further, since the pressing member 21 is not exposed to the outside of the first case member 11, the outer shape of the first case member 11 can be applied to an external device and used for positioning of the attachment.
- the pressing member 21 presses the vibrator 22 against the driven member 24, whereby a frictional force is generated between the vibrator 22 and the driven member 24.
- the driven member 24 moves in the longitudinal direction by applying the high frequency voltage to vibrate the vibrator 22. Furthermore, since the driven member 24 moves while being supported by the rolling members 25, 26, 27, 28, a stable pressing force can be obtained.
- connecting portions 31 are provided at both ends of the driven member 24, and a linear movable device can be realized.
- the connecting members 111c and 111d are fixed to the connecting portions 31 at both ends of the driven member 24, and the connecting members 111c and 111d are fixed.
- the driven member 24 is driven to move in the A direction, whereby the X plate 140 moves in the X direction.
- Such a configuration and operation are the same for the ultrasonic motor unit 112.
- the ultrasonic motor unit 113 when the connecting members 113a and 113b are fixed to the connecting portions 31 at both ends of the driven member 24 and the connecting members 113a and 113b are fixed to the Y plate 130, the driven member 24 is When driven and moved in the A direction, the Y plate 130 moves in the Y direction.
- the ultrasonic motor unit 114 Such a configuration and operation are also the same for the ultrasonic motor unit 114.
- the X plate 140 can be moved relative to the base 120 by driving the ultrasonic motor units 111 and 112, and the Y plate 130 can be moved to the ultrasonic motor unit 113, By driving 114, relative movement with respect to the X plate 140 is possible.
- the ultrasonic motor device 100 having the above configuration and action has the following effects.
- An XY stage capable of stable XY driving can be provided simply by attaching the ultrasonic motor units 111, 112, 113, and 114 having stable characteristics. That is, until now, the ultrasonic motor unit has been incorporated into the XY stage and the pressing force, drive frequency, and the like have been adjusted, but the ultrasonic motor device 100 has optimally adjusted the motor characteristics in the state of the ultrasonic motor unit alone. Since it can be assembled in the state as an XY stage, it is possible to reduce the size and to improve the assemblability.
- examples of the motor characteristics to be adjusted include a pressing force and a driving frequency.
- FIG. 7 is a perspective view showing a configuration of an ultrasonic motor device 200 according to the second embodiment.
- FIG. 8 is an exploded perspective view showing the configuration of the ultrasonic motor apparatus 200 according to the second embodiment.
- bearing members 212 and 214 are used in place of the ultrasonic motor units 112 and 114 of the first embodiment. Different from the ultrasonic motor apparatus 100 according to the embodiment. Other configurations are the same as those of the ultrasonic motor device 100 according to the first embodiment, and the same reference numerals are used for the same members.
- the ultrasonic motor apparatus 200 includes one ultrasonic motor unit that moves the X plate 140 and the Y plate 130. That is, the ultrasonic motor device 200 includes an ultrasonic motor unit 111 for moving the X plate 140 and an ultrasonic motor unit 113 for moving the Y plate 130.
- the bearing member 212 is fixed to the end of the upper surface of the base 120 in the Y direction so as to form a pair with the ultrasonic motor unit 111, similarly to the ultrasonic motor unit 112. Further, the bearing member 212 has a case member (case) fixed to the mounting portions 123 and 124 of the base 120 with screws.
- the bearing member 212 includes a shaft-like member that can move along the X-axis direction, and connecting members 212c and 212d are fixed to both ends of the shaft-like member, respectively.
- the bearing member 212 is coupled to the lower surface of the X plate 140 by screwing the connecting members 212c and 212d into the mounting holes 143 and 144, respectively.
- the ultrasonic motor unit 111 and the bearing member 212 are disposed to face each other so as to support the X plate 140 at both ends in the Y direction.
- the case member of the bearing member 212 has at least the same thickness (size in the Z direction) as that of the ultrasonic motor unit 111.
- the bearing member 214 is fixed to the end portion in the X direction on the lower surface of the X plate 140 so as to make a pair with the ultrasonic motor unit 113.
- the bearing member 214 has a case member (case) fixed to the mounting holes 153 and 154 of the X plate 140 with screws.
- the ultrasonic motor unit 113 and the bearing member 214 are opposed to the X plate 140 so as to hang at both ends in the X direction.
- the bearing member 214 includes a shaft-like member that can move along the Y-axis direction, and connecting members 214a and 214b are fixed to both ends of the shaft-like member, respectively.
- the bearing member 214 is coupled to the upper surface of the Y plate 130 by screwing the connection members 214a and 214b to the attachment portions 133 and 134, respectively.
- the ultrasonic motor unit 113 and the bearing member 214 are disposed to face each other so as to support the Y plate 130 at both ends in the X direction.
- the case member of the bearing member 214 has at least the same thickness (size in the Z direction) as that of the ultrasonic motor unit 113.
- FIG. 9 is an exploded perspective view showing the configuration of the bearing member according to the second embodiment.
- the bearing member 212 and the bearing member 214 have the same shape, only the bearing member 212 will be described in FIG.
- the bearing member 212 and the bearing member 214 may have different shapes as long as the same action and effect can be obtained.
- the bearing member 212 includes a case 261, a guide member 262, a shaft-like member 263, and rolling members 266, 267, 268 and 269.
- the case 261 has a hollow substantially rectangular parallelepiped outer shape, and openings 261a and 261b are formed on opposing side walls.
- the guide member 262 has a shape obtained by bending a long plate-like member at the center in the width direction. A plurality of guide holes penetrating in the thickness direction are formed at predetermined positions of the guide member 262, and spherical rolling members 266, 267, 268, 269 are held in the guide holes so as to be able to roll.
- the guide member 262 is placed in the internal space of the case 261 while holding the rolling members 266, 267, 268, 269.
- a shaft-like member 263 is disposed on the rolling members 266, 267, 268, 269.
- the shaft-like member 263 is arranged so that both ends thereof extend from the openings 261a and 261b to the outside, and connection members 212c and 212d are fixed to both ends, respectively.
- the connecting members 212c and 212d are fixed to both ends of the shaft-like member 263 by screws 264 and 265, respectively.
- the shaft-like member 263 is held by the rolling members 266, 267, 268, 269 so as to be movable in the axial direction (D direction).
- the bearing member 212 having the above configuration is such that the D direction in which the shaft-like member 263 extends is along the X direction, the height direction (E direction) is along the Y direction, and the thickness direction (F direction) is along the Z direction. Be placed.
- the bearing member 214 is arranged so that the D direction in which the shaft-like member extends is along the Y direction, the height direction (E direction) is along the X direction, and the thickness direction (F direction) is along the Z direction. .
- the bearing members 212 and 214 are used instead of the ultrasonic motor units 112 and 114, respectively, the number of ultrasonic motor units can be reduced. Therefore, when the load necessary for moving the X plate and the Y plate is small, the cost can be reduced by adopting such a configuration.
- action, and an effect it is the same as that of 1st Embodiment.
- the ultrasonic motor device according to the present invention is useful for the vibration isolation structure of the XY stage and precision equipment.
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
まず、第1実施形態に係る超音波モータ装置について、図1から図6を参照して説明する。図1は、第1実施形態に係る超音波モータ装置の構成を示す斜視図である。図2は、第1実施形態に係る超音波モータ装置の構成を示す分解斜視図である。
まず、押圧部材21を第1のケース部材11の第1の収容凹部16に入れる。次に、支持部材23の張り出し部と第1のケース部材11の係合部とを嵌合することによって、第1のケース部材11に振動子22を固定する。
具体的には、図1、図2に示す超音波モータユニット111を例にとれば、被駆動部材24の両端部の連結部31に接続部材111c、111dを固定し、この接続部材111c、111dをXプレート140に固定すると、被駆動部材24が駆動されてA方向に移動することによってXプレート140がX方向に移動する。このような構成、動作は超音波モータユニット112も同様である。
特性が安定した超音波モータユニット111、112、113、114を取り付けるだけで安定したXY駆動が可能なXYステージを提供できる。
つまり、今まではXYステージに超音波モータユニットを組み込んでから押圧力、駆動周波数等を調整していたが、超音波モータ装置100では超音波モータユニット単体の状態でモータ特性を最良に調整した状態でXYステージとして組み付けできるので、小型化が可能であり、組み立て性を格段に向上できる。ここで、調整するモータ特性としては、例えば、押圧力、駆動周波数を挙げることができる。
図7から図9を参照しつつ、第2実施形態に係る超音波モータ装置について説明する。図7は、第2実施形態に係る超音波モータ装置200の構成を示す斜視図である。図8は、第2実施形態に係る超音波モータ装置200の構成を示す分解斜視図である。
ケース261は中空の略直方体状の外形を備え、対向する側壁には開口261a、261bが形成されている。
なお、その他の構成、作用、効果については、第1実施形態と同様である。
10g 開口部
11 第1のケース部材(ケース)
11g 第1の溝部
11h ねじ穴
11s 端面
12 第2のケース部材(ケース)
12g 第2の溝部
12h ねじ穴
16 第1の収容凹部
18 第2の収容凹部
21 押圧部材(付勢部材)
22 振動子(振動部材)
22a 駆動子
23 支持部材
24 被駆動部材(移動部材)
24a 平面部
24b 曲面部
25、26、27、28 転動部材(案内手段)
29 案内部材
29a、29b、29c、29d ガイド孔部
31 連結部
36 押圧ネジ(加圧部材)
37 ケース止めネジ
100 超音波モータ装置
111 超音波モータユニット
111c、111d 接続部材
112 超音波モータユニット
112c、112d 接続部材
113 超音波モータユニット
113a、113b 接続部材
113c、113d ネジ穴
114 超音波モータユニット
114a、114b 接続部材
114c、114d ネジ穴
120 ベース
121、122、123、124 取付け部
130 Yプレート
131、132、133、134 取付け部
140 Yプレート
141、142、143、144 取り付け穴
151、152、153、154 取り付け穴
200 超音波モータ装置
212 軸受部材
212c、212d 接続部材
214 軸受部材
214a、214b 接続部材
214c、214d ネジ穴
261 ケース
261a、261b 開口
262 案内部材
263 軸状部材
266、267、268、269 転動部材
Claims (5)
- 高周波電圧の印加により周期的に振動する振動部材、
前記振動部材を収納するケース、
前記振動部材に接触する移動部材、及び
前記移動部材と前記振動部材とを互いに加圧接触させて押圧力を発生する付勢部材、
をそれぞれ有する第1の超音波モータユニット及び第2の超音波モータユニットと、
前記第1の超音波モータユニットのケースが固定されたベース部材と、
前記第1の超音波モータユニットの前記移動部材に固定され、かつ、前記第2の超音波モータユニットのケースが固定された第1の枠と、
前記第2の超音波モータユニットの移動部材に固定された第2の枠と、
を備えていることを特徴とする超音波モータ装置。 - 一対の前記第1の超音波モータユニットが前記ベース部材上に対向して配置されている請求項1に記載の超音波モータ装置。
- 一対の前記第2の超音波モータユニットが前記第1の枠上に対向して配置されている請求項1に記載の超音波モータ装置。
- 前記第1の超音波モータユニットを1つ備えることを特徴とする請求項1に記載の超音波モータ装置。
- 前記第2の超音波モータユニットを1つ備えることを特徴とする請求項1に記載の超音波モータ装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010800150954A CN102388531A (zh) | 2009-04-01 | 2010-03-25 | 超声波马达装置 |
JP2011507135A JPWO2010113764A1 (ja) | 2009-04-01 | 2010-03-25 | 超音波モータ装置 |
US13/251,542 US20120074813A1 (en) | 2009-04-01 | 2011-10-03 | Ultrasonic motor device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009088900 | 2009-04-01 | ||
JP2009-088900 | 2009-04-01 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/251,542 Continuation US20120074813A1 (en) | 2009-04-01 | 2011-10-03 | Ultrasonic motor device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010113764A1 true WO2010113764A1 (ja) | 2010-10-07 |
Family
ID=42828058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/055247 WO2010113764A1 (ja) | 2009-04-01 | 2010-03-25 | 超音波モータ装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120074813A1 (ja) |
JP (1) | JPWO2010113764A1 (ja) |
CN (1) | CN102388531A (ja) |
WO (1) | WO2010113764A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5683643B2 (ja) * | 2013-06-07 | 2015-03-11 | キヤノン株式会社 | リニア超音波モータ及びそれを有する光学装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11271480A (ja) * | 1998-03-19 | 1999-10-08 | Seiko Instruments Inc | 超音波モータを利用したステージ及びこのステージを用いた電子機器、印刷装置 |
JP2008218163A (ja) * | 2007-03-02 | 2008-09-18 | Hitachi High-Technologies Corp | ステージ機構、及びそれを備えた電子顕微鏡、並びにステージ機構の位置決め制御方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7242131B2 (en) * | 2004-05-12 | 2007-07-10 | Olympus Corporation | Ultrasonic motor |
JP4576154B2 (ja) * | 2004-05-13 | 2010-11-04 | オリンパス株式会社 | 超音波モータ |
-
2010
- 2010-03-25 WO PCT/JP2010/055247 patent/WO2010113764A1/ja active Application Filing
- 2010-03-25 CN CN2010800150954A patent/CN102388531A/zh active Pending
- 2010-03-25 JP JP2011507135A patent/JPWO2010113764A1/ja active Pending
-
2011
- 2011-10-03 US US13/251,542 patent/US20120074813A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11271480A (ja) * | 1998-03-19 | 1999-10-08 | Seiko Instruments Inc | 超音波モータを利用したステージ及びこのステージを用いた電子機器、印刷装置 |
JP2008218163A (ja) * | 2007-03-02 | 2008-09-18 | Hitachi High-Technologies Corp | ステージ機構、及びそれを備えた電子顕微鏡、並びにステージ機構の位置決め制御方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102388531A (zh) | 2012-03-21 |
US20120074813A1 (en) | 2012-03-29 |
JPWO2010113764A1 (ja) | 2012-10-11 |
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