Linear actuator for both vibrating and rolling movement and electric toothbrush using the same

一种线性致动器、旋转运动的技术，应用在牙科、电气元件、机电装置等方向，能够解决电动牙刷重、降低驱动效率、多能量等问题，达到尺寸降低、节省驱动能量、轻振动的效果

Active Publication Date: 2006-07-26
MATSUSHITA DENKO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since the vibration is absorbed by the vibration-absorbing weight moving in the opposite phase to the moving part, the vibration-absorbing weight is necessary in addition to the movable part, thereby making the electric toothbrush larger and heavier
In addition, due to the increased size and weight, more energy needs to be expended for reciprocating motion
This reduces the drive efficiency

Method used

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  • Linear actuator for both vibrating and rolling movement and electric toothbrush using the same
  • Linear actuator for both vibrating and rolling movement and electric toothbrush using the same
  • Linear actuator for both vibrating and rolling movement and electric toothbrush using the same

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Embodiment Construction

[0028] Referring to the accompanying drawings, preferred embodiments of the present invention will be described in detail below. figure 1 and figure 2 A linear actuator 60 for vibratory and rotational motion is shown as a first embodiment of the invention. As shown in the figure, the linear actuator 60 for vibrating and rotating motion is composed of a linear actuator 3A for linearly reciprocating the shaft 2 in the axial direction A and a linear actuator for rotating and reciprocating the shaft 2 in the rotational direction B. 3B, and the linear drivers 3A and 3B are arranged inside the cylindrical shielding case 1 .

[0029] Both ends of the shaft 2 are supported by bearings 4 so as to be able to linearly reciprocate in the axial direction and rotate in the rotational direction B. As shown in FIG. Bearings 4, 4 are connected to both ends of the shield case 1, respectively. At the end of the shaft 2 there is provided a transmission part 50 which transmits the driving forc...

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Abstract

The linear actuator for both vibrating and rolling movement according to one preferred embodiment of the present invention is comprised of a shaft supported so as to be movable reciprocally in an axis direction and a rotation direction about the axis, a first linear driver including a cylindrical stator having a winding wire thereon and a movable member arranged inside the stator so as to reciprocate the shaft linearly in the axis direction, a second linear driver including a cylindrical stator having a winding wire thereon and a movable member arranged inside the stator so as to reciprocate the shaft rollingly in the rotation direction, one of the movable members being secured on the shaft and another one of the movable members being movable relative to the shaft, and a coordinating member for enabling the shaft and the one of the movable member to move in opposite phase to the another one of the movable member.

Description

technical field [0001] The present invention relates to a linear actuator for vibratory and rotational motion capable of reciprocating linearly and rotationally, and to an electric toothbrush using the linear actuator. Background technique [0002] Japanese Patent Application Unexamined Publication No. 2004-343933 discloses a linear actuator capable of linearly reciprocating along a given axis and rotating about the axis. The linear actuator described above is composed of a shaft supported to linearly reciprocate along its axis and rotate about the axis, a linear driver for linearly reciprocating the shaft along the axis, and a shaft for rotating the shaft around the axis. It consists of a linear drive that rotates on the above-mentioned axis. [0003] A linear drive for linear reciprocating motion consists of a vibrating element and a stator. The vibrating element is cylindrical and coaxially arranged around a portion of the circumference of the shaft. Also, the vibratin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/16A61C17/22
CPCH02K33/02A61C17/3445H02K33/16H02K33/04A61C17/32A61C17/26
Inventor 小林升西中孝宏金田健作清水宏明本桥良薮内英一
Owner MATSUSHITA DENKO KK
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