JPH072148A - Actuator for moving type rear spoiler - Google Patents

Abstract

PURPOSE:To form an actuator in a compact shape and to prevent the breakage of a spoiler and the occurrence of a backlash. CONSTITUTION:One end of the refraction link piece 20 of a link mechanism A comprising a plurality of link pieces 11 and 12 and a refraction link piece 20 is mounted on the moving part side of a spoiler 17 rockably supported to the one end of a body B. One end of the link piece 11 on the other end side of the link mechanism A is attached to the end part of a shaft 8 supported to a gar box 2 to which rotation is transmitted through a plurality of gears through running of a motor 6 arranged to the gear box 2. Further, the link pieces 11 and 20 are intercoupled through pins 13 and 13a inserted in respective oblong holes formed in a link piece 14. A tensile coil spring 24 is run around the pins 13 and 13a, which are drawn toward each other. Through rotation of the shaft 8 with the aid of a motor 6, vertical movement of the spoiler 17 is effected through the link mechanism A and a backlash is prevented from occurring through pull of the coil spring 24. Further, the mechanical lock of the spoiler 17 during a stop is also prevented from occurring by means of the tensile spring 24 as in prevention of the occurrence of a backlash.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable rear spoiler actuator for operating a movable rear spoiler for an automobile.

[0002]

2. Description of the Related Art In a conventional movable rear spoiler, as disclosed in FIGS. 1 and 2, a drive gear c is rotated by a motor b located at the center of a spoiler a to drive cables d, d, and a slider e, When e is pulled by the cables d, d, the pin f of the sliders e, e moves to the rear end of the elongated hole h provided in the guide g, and the spoiler uses the pin i as a fulcrum according to the shape of the elongated hole h. The rear end of a rises. Further, when the motor b rotates in the reverse direction, the sliders e, e move the cables d, d.
It is pushed in the opposite direction to descend by the reverse operation, and the range of movement is limited by the limit switch.

[0003]

The above-mentioned conventional movable rear spoiler has a problem that the spoiler may be damaged due to looseness of the spoiler or mechanical lock when the spoiler is stopped due to inertia of the motor when the switch is damaged. Since a mechanism that uses a slider and a guide is used as the mechanism for lowering and lowering, a lot of space is required. Further, when the actuator is attached to the spoiler and the body, there is a problem that the attachment work is complicated because the slider, the guide and the like are separated from the motor part.

[0004]

In order to solve the above-mentioned problems, the present invention uses a link mechanism for raising and lowering motions of a spoiler, and further, an elongated hole is provided in a rotation center portion of the link mechanism portion to draw a coil spring between the rotation centers. The present invention provides an actuator which eliminates backlash and prevents damage to the spoiler due to mechanical lock when the spoiler is stopped by the inertia of the motor.

[0005]

According to the present invention, in order to raise the spoiler 17, the motor 6 provided in the gear box 2 attached to the body B is rotated, and the first helical gear 3 and the first worm gear 4 of the gear body 5 meshed with the second worm gear 7 are rotated. And the second helical gear 9 provided on the shaft 8 supported by the gear box 2 is meshed with the first worm gear 4 to transmit the rotation to the shaft 8. One end of a link mechanism A attached to the movable part side of the spoiler 17 whose one end is supported by the shaft 21 on the body B side is attached to both ends of the shaft 8, and the rotation center of the link mechanism part A is connected to the link piece. Pins 13 and 13a inserted into the elongated holes 14a and 14b formed in 14 are pulled toward each other by a tension coil spring 24 hooked on the pins 13 and 13a, and the rotation of the shaft 8 causes the spoiler 17 to move up and down through a link mechanism A. Make a move. In this case, the link mechanism A has the above-mentioned tension coil spring 2
Since they are pulled together at 4, play can be prevented.

Further, the spoiler 17 can be prevented from being mechanically locked when it is stopped by the tension coil spring 24 as in the case of preventing looseness.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a movable rear spoiler actuator according to the present invention, which will be specifically described below with reference to the drawings.

Reference numeral 1 denotes an actuator, which has a gear body 5 having a first helical gear 3 and a first worm gear 4 horizontally supported in a gear box 2.
Further, the first helical gear 3 is attached to the shaft 6a from the motor 6 attached to the gear box 2 by press fitting.
The rotation force of the motor 6 meshes with the worm gear 7
The second worm gear 7, the first helical gear 3, and the first worm gear 4 are integrally transmitted.

The first worm gear 4 of the gear body 5 in the gear box 2 is a second helical gear provided on a shaft 8 which is horizontally supported in the gear box 2 and has both ends extending from both sides of the gear box 2. The rotational force meshing with 9 is transmitted by a collar 10 in which a second helical gear 9 is attached to the shaft 8.

The shaft 8 has link pieces 11, 11 on both end sides.
Attach one end of the by tightening the nut 12, and
Pins 13a respectively insert end portions 1 and 11 into elongated holes 14a provided on one end side of the link piece 14 for connection, and are connected through a washer 15 and a collar 16 to each other. A long hole 14b similar to the above is formed on the other end side of the spoiler 17 and the cover 18
A bending link piece 20 attached by a bolt 19 via
Insert the pin 13 provided on the washer 15, the collar 16
And the rotational force of the shaft 8 is converted into a vertical force by the link mechanism A of the link pieces 11, 14, 20 so that the spoiler 17 having the bending link piece 20 attached thereto is lifted in the vertical direction. I am doing it.

One end of the spoiler 17 has a spoiler 17
The center of rotation of the movable part is pivotally supported, and it moves up and down around the pivotal support 21. The control of the movement angle amount of the spoiler 17 around the shaft 21 is performed by the collar 2 provided on the shaft 8.
The operation pieces attached to the Nos. 2 and 22 are used to make them correspond to each other, or the mitt switches 23 and 23a are operated.

Further, the pins 13 and 13a of the link mechanism A are
A tension coil spring 24 is provided between them, and the ends of the tension coil spring 24 are hooked on the pins 13 and 13a to pull them from each other to prevent rattling, and the tension coil spring 24 is mechanically locked by the inertia of the motor 6 to prevent the spoiler from moving. It is designed to prevent damage.

[0013]

As described above, according to the present invention, since the actuator is integrated with the motor portion, the link mechanism and the gear, the actuator can be made compact and the spoiler and the body can be easily attached, and the weight can be reduced.

Further, by providing the tension coil spring and the elongated hole in the link mechanism, there is an effect that "backlash" can be removed without the load of the coil spring affecting the motor.

[Brief description of drawings]

FIG. 1 is a schematic explanatory plan view of a conventional movable rear spoiler actuator.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 3 is a side view showing an embodiment of a movable rear spoiler actuator of the present invention, with a spoiler attached.

FIG. 4 is a front view of a partially enlarged view taken along line XX of FIG.

FIG. 5 is a plan view of an actuator body.

FIG. 6 is a front view of FIG.

FIG. 7 is a vertical cross-sectional side view taken along line YY of FIG.

8 is a vertical cross-sectional front view taken along line ZZ of FIG.

9 is a vertical cross-sectional front view taken along the line MM of FIG.

[Explanation of symbols]

 1 Actuator 2 Gear Box 3,9 Helical Gear 4,7 Worm Gear 5 Gear Body 6 Motor 6a, 8 Shaft 10, 16, 22 Collar 11,20 Link Piece 12 Nut 13,13a Pin 14 Linking Link Piece 14a, 14b Oval Hole 15 Washer 17 Spoiler 18 Cover 21 Shaft support 23, 23a Limit switch 24 Tension coil spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seikatsu Masuda No. 1 Kakihata, Inuyama City, Aichi Prefecture Imasen Electric Works Co., Ltd. (72) Inventor Toshikazu Suzuki No. 1 Kakihata, Inuyama City, Aichi Prefecture Imasen Electric Co., Ltd. Inside the factory

Claims (2)

[Claims] 1. An actuator for a movable rear spoiler of an automobile, wherein a moving mechanism of the spoiler is used for raising and lowering the spoiler by using a link mechanism integrated with a motor unit. 2. A patent characterized in that a long hole is provided in the center of rotation of the link mechanism, and a connecting pin inserted into the long hole is locked by a tension coil spring to prevent backlash and inertia of the motor. The movable rear spoiler actuator according to claim 1.