Unlock instant, AI-driven research and patent intelligence for your innovation.

Driving device

A technology of driving device and driven body, applied in installation, generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, etc., can solve the problems of low height and miniaturization of the driving device.

Inactive Publication Date: 2008-12-10
SHARP KK
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the driving member 203 and the piezoelectric element 201 are arranged (stacked) along the driving direction, and there is a problem that it is not easy to achieve low height and miniaturization of the driving device.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Driving device
  • Driving device
  • Driving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The driving device of the present invention includes: a bending displacement member; and a control unit that electrically controls the bending displacement of the bending displacement member. That is, in the drive device, the bending displacement of the bending displacement member is excited by electrical control performed by the control unit. First, a bending displacement member that excites bending displacement by electrical control will be described. As an example of the bending displacement member, for example, Figure 10(a) ~ Figure 10(c) A piezoelectric element of the bimorph configuration is shown.

[0030] Figure 10 shows the composition of the piezoelectric element of the bimorph structure, Figure 10(a) shows a plan view, Figure 10(b) shows a side view, and Figure 10(c) shows the piezoelectric element A schematic diagram of what bending displacement looks like.

[0031] Figure 10(a) ~ Figure 10(c) The shown piezoelectric element has: two piezoelectric mate...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In order to provide a driving device that can be made more compact and shorter in height, a driving mechanism of a driving device according to the present invention includes: a flex movement member 1 that exhibits flex movement when excited by electronic control, and a first fixing member 14 for fixing a part of the flex movement member 1, both ends of which sandwich the part fixed by the fixing member 14 and bend. A first elastic member 12 and a second elastic member 22 are connected to the both ends of the flex movement member 1. The flex movement of the both ends of the flex movement member 1 causes distortion or bending in the first elastic member 12 and the second elastic member 22, so that a first frictional member 12 and a second frictional member 23 each serving as a contact section in contact with a lens barrel 5 move in a direction different from the flex movement direction of the both ends of the flex movement member 1. Thus, the lens barrel 5 is driven.

Description

technical field [0001] The present invention relates to a driving device for driving a driven body. The present invention relates to a drive device for driving a driven body using an electro-mechanical conversion element. For example, it relates to a driving device for driving a lens in an optical device such as a photographic lens of a camera. Background technique [0002] Conventionally, a drive device for driving a driven body using an electro-mechanical conversion element (piezoelectric element) has been proposed. Such a drive device is used, for example, to drive a lens in an optical device such as a photographic lens of a camera. [0003] Regarding the conventional driving device, for example, in Patent Document 1 (Japanese Unexamined Patent Publication No. Hei 4-69070, published on March 4, 1992), it is disclosed that the purpose is to reduce the size, light weight, and enable high-precision positioning and movement. A driving device with low control and manufactur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/00H01L41/09G02B7/04
CPCG02B7/08H02N2/0015H02N2/026
Inventor 江川智浩
Owner SHARP KK