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Actuator device

A technology of actuating device and loading and unloading, applied in the direction of transmission parts, electromechanical devices, electric components, etc., can solve problems such as deteriorating operation and failure

Inactive Publication Date: 2006-03-01
MITSUBA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, according to the actuating device 1 of the background art, the motor 3 is fixed to each side of the motor accommodating portion 2a of the case 2 only via the rubber O-rings 8a, 8b fitted to the corresponding bearing portions 3a, 3b. In the state where the wall portions are in contact, each interval between the motor 3 and each side wall portion of the motor accommodating portion 2a is not constituted by a floating support structure caused by a certain elastic member or the like, and therefore, when the reduction gear is made When 5A rotates, as Figure 26 As shown, the reaction force from the reduction gear 5A acts on the drive shaft 4, and the drive shaft 4 of the motor 3 is bent in the direction of the arrow mark P due to the fulcrum formed by the bearing portion 3a, and the motor 3 is easily placed on each side of the motor housing portion. The side wall parts vibrate and incline (offset), and the reaction force F cannot be sufficiently buffered only by the elastic force of each O-ring 8a, 8b made of rubber
Next, due to bending of the drive shaft 4 of the motor 3, etc., the state in which the worm 4b of the drive shaft 4 of the motor 3 and the reduction gear 5A mesh with each other is deteriorated and malfunction may occur or noise (running sound) and noise may be transmitted to the case 2

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Fig. 1 is an exploded perspective view of a manipulation locking device according to Embodiment 1 of the present invention, figure 2 is the plan view of the device, image 3 is the bottom view of the device, Figure 4 is a perspective view of the device viewed from the bottom side, Figure 5 is the rear view of the device, Figure 6 is the plan view of the inside of the device chassis, and Figure 7 is along the figure 2 The cross-sectional view developed by the line X-X, Fig. 8 is a side view of the motor used in the device, Figure 9 It is a plane view of the motor, Fig. 10A is a rear view of the cylindrical elastic member installed in the motor, Fig. 10B is a side view of the elastic member, Figure 10C is the plan view of the elastic member, Figure 11A is an enlarged sectional view showing the terminal connection portion of the motor, Figure 11B is an enlarged sectional view showing a state where a terminal is connected to a terminal connection part, Figu...

Embodiment 2

[0081] Such as Figure 6 As shown, a pair of sidewalls 11e, 11e extending in parallel in the up-down direction are formed at both sides of the two side walls 11e, 11e of the motor housing portion 11a of the chassis 11 (in the vicinity of the corresponding corner portions) by integrally protruding respectively. The protruding portions 11f, 11f and floatingly support the motor 20 via the cylindrical elastic member 22 between the two side walls 11e, 11e of the motor accommodating portion 11a via respective protrusions of the two side walls 11e, 11e of the motor accommodating portion 11a The bending (deformation) of the armature shaft 21 of the motor 20 caused by the reaction force F from the reduction gear 26 meshing with the worm 21b of the armature shaft 21 of the motor 20 and the displacement in the motor accommodating portion 11a It can be positively limited within respective predetermined ranges, and the occurrence of malfunction or noise, etc., caused by bending of the arma...

Embodiment 3

[0084] Such as Figure 6 As shown in FIG. 10, the elastic member 22 is formed in a cylindrical shape from a resin material such as thermoplastic elastomer. That is, the elastic member 22 is made cylindrical by an upper wall portion (upper portion) 22a, two side wall portions (two side portions) 22b, 22b, and a bottom wall portion (bottom) 22c. The respective outer shapes of the upper wall portion 22a and the bottom wall portion 22c of the elastic member 22 respectively integrally protrude to form respective pairs of protruding portions 22d, 22d extending in parallel in the front and rear directions. As shown in FIG. 7, respective pairs of projecting portions 22d, 22d respectively intersect projecting portions 11g, 11g of the bottom wall 11c of the pair of motor accommodating portions 11a and a pair of projecting portions integrally protruding so as to form the inner surface 12a of the case cover 12. Protruding portions 12g, 12g. Accordingly, the motor 20 is floatably support...

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Abstract

PROBLEM TO BE SOLVED: To provide an actuator device which can surely prevent the occurrence of malfunction, noise, etc. due to the flexure of the drive shaft of a motor. ŽSOLUTION: In the actuator device which is equipped with a case which has a cover for covering a motor storage and a gear storage, a motor which is housed in the motor storage, an output gear which is housed rotatably in the gear storage and is rotated via a reduction gear by the drive shaft of the motor, an output shaft which is supported rotatably by the case and rotates together with the output gear, and an output means which is attached to the output shaft, the motor is supported floatably within the motor storage via an elastic member, and the tip of the above drive shaft is supported rotatably via the bearing of a bearing holder in the gear storage, and the bearing is supported floatably by the bearing holder in the gear storage via a vibrationproof member. Ž

Description

technical field [0001] The present invention relates to an actuating device, preferably for use in such as a steering locking device, for locking or unlocking a steering axle of a vehicle. Background technique [0002] The operation and locking device of the background art is equipped with a case, and the case has a cover for covering the motor accommodating part and the gear accommodating part; the motor is housed in the motor accommodating part of the case; the output gear is rotatably It is installed in the gear accommodation part of the chassis and driven by the drive shaft of the motor to rotate through the reduction gear; the output shaft is fixed by passing through the shaft barrel of the output gear and rotates together with the output gear; the output cam is attached to the for the output shaft and for locking and unlocking the manipulation shaft; and for the limit switch, which is disposed at the gear accommodation portion of the case and is operated to be turned o...

Claims

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Application Information

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IPC IPC(8): F16H57/00B60R25/0215H02K5/24
Inventor 川村佑治河本牧人和田利昌中村育夫
Owner MITSUBA CORP
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