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Vibration type driving apparatus

A driving equipment, vibration type technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problem of insufficient reduction of ultrasonic actuator size, vibration components Or the complex shape of the moving components, and it is not easy to manufacture ultrasonic actuators, etc.

Inactive Publication Date: 2008-07-16
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shape of the vibrating member or the moving member is complicated, so that the size of the ultrasonic actuator cannot be sufficiently reduced
In addition, it is not easy to manufacture the ultrasonic actuator

Method used

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  • Vibration type driving apparatus
  • Vibration type driving apparatus
  • Vibration type driving apparatus

Examples

Experimental program
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Embodiment Construction

[0028] Several exemplary embodiments, features, and aspects of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] A vibration-type driving device according to an exemplary embodiment of the present invention is suitable for an ultrasonic linear motor that drives a moving member in contact with the vibrating member using vibration excited in the vibrating member.

[0030] first exemplary embodiment

[0031] FIG. 1 is a perspective view illustrating the configuration of an ultrasonic linear motor according to a first exemplary embodiment of the present invention. FIG. 2 illustrates a cross-sectional view of the ultrasonic linear motor when viewed in the direction of arrow H in FIG. 1 . The ultrasonic linear motor includes a vibrating member 3 formed of a rectangular flat plate material and a slider 4 (ie, a sliding member) that moves relative to the vibrating member 3 . The ultrasonic linear motor also includes a plur...

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Abstract

A vibration type driving apparatus includes a vibrating member configured to simultaneously generate a plurality of standing wave vibrations to cause an elliptic motion on surfaces located at nodes of the standing wave vibration, a driving unit formed on the surface located at the node to perform the elliptic motion, and a moving member configured to contact the driving unit and to be driven by the elliptic motion. The driving unit protrudes from a surface of the vibrating member, and includes a first driving unit and a second driving unit that are formed to sandwich the moving member in a perpendicular direction to the surface. The first driving unit and the second driving unit are located at the nodes that are separated by odd-number times a half-wave length of the standing wave vibration, and located where the directions of the elliptic motions are opposite to each other.

Description

technical field [0001] The present invention relates to a vibration type driving device. Background technique [0002] Conventionally, there is an ultrasonic motor of a vibration-type drive device that linearly drives a driven member. For example, Japanese Patent Laid-Open No. 06-311765 discusses an ultrasonic motor that excites a plate-like vibrating member with a standing wave having two bending modes to generate elliptical vibration at a predetermined portion of the vibrating member. The ultrasonic motor drives the moving member by bringing the moving member into contact with a predetermined portion. [0003] Also, Japanese Patent Laid-Open No. 2004-304887 discusses an ultrasonic motor that generates standing waves having two bending modes at right angles to each other to excite a vibrating member having a protrusion having a convex portion. In this configuration, an elliptical motion generated by the synthesis of the two bending modes drives the moving member. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00
CPCH02N2/026H02N2/0015H02N2/0055
Inventor 山本新治
Owner CANON KK
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