JPH0586767U - Movable wing drive - Google Patents

Abstract

(57) [Abstract] [Purpose] To reduce the size, weight and simplification of the drive device for the movable blade of a spoiler. [Structure] A worm gear 12 fixed to a rotating shaft 11a of a motor 11 and a gear 1 formed on an outer peripheral portion of the worm gear 12.
5, the screw portion 16 formed on the outer peripheral surface of the screw shaft 17 is meshed with the screw portion 16 formed on the inner peripheral portion of the worm wheel 14, and the screw shaft 17 is screwed forward and backward on the worm wheel 14. , Screw shaft 1
The upper end of 7 penetrates the hole 3a formed in the spoiler base 3, and the connecting member 19 attached to the bottom surface of the movable shaft 4 is connected to the shaft 2
It was connected at 0.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drive device for swinging a movable wing of a spoiler provided at a rear portion of a vehicle.

[0002]

[Prior Art]

 A spoiler has been conventionally used in the rear part of the vehicle body to improve stability at high speeds, and recently some spoilers have movable wings. For example, as described in JP-A-62-24 7984, one end of a cable is fixed to a rack that is moved by a pinion gear attached to a rotating shaft of a motor, and the other end of the cable is inside a guide block. It is connected to an elevating member that is slidably fitted to the, and the elevating member supports movable blades, and the motor is rotated to move the rack, which moves the elevating member up and down via a cable. In some cases, this allows the movable wing to swing.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned movable wing driving device, a large capacity motor must be used because the friction of the cable becomes large, and as a result, the entire driving device becomes large and the spoiler base It will be difficult to install in a limited space.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention has a screw shaft formed on an inner peripheral portion of a gear rotated by a motor so that the screw shaft can advance and retreat, and the screw shaft is connected to a movable blade.

[0005]

[Action]

 The gear is rotated by rotationally driving the motor, and the rotation of the gear causes the screw shaft screwed to the screw portion formed on the inner periphery of the gear to advance and retreat, thereby swinging the movable blade.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a rear perspective view of a vehicle to which a movable blade drive device according to the present invention is applied, FIG. 2 is an exploded perspective view of a spoiler equipped with the drive device, FIG. 3 is a plan view of the drive device, and FIG. FIG. 5 is a cross-sectional view showing a state where the movable blade is lowered by the same drive device, and FIG. 5 is a cross-sectional view showing a state where the movable blade is raised by the same drive device.

A spoiler 2 is attached to the rear portion of the vehicle 1. As shown in FIG. 2, this spoiler 2 has a movable wing 4 swingably attached to a spoiler base 3 by means of hinges 5 and 5, and a drive for swinging (raising and lowering) the movable wing 4 below the spoiler base 3. A device 6 is provided.

In this drive device 6, a motor 11 is provided in a case 10, a worm gear 12 is fixed to a rotation shaft 11 a of the motor 11, and a worm wheel rotatably provided in the sub case 13 is attached to the worm gear 12. A gear 15 formed on the outer peripheral surface of 14 is meshed. It should be noted that the size of the motor 10 can be reduced by disposing the motor 11 obliquely inside the case 10.

A screw portion 16 is formed on the inner peripheral portion of the worm wheel 14, and a screw portion 18 formed on the outer peripheral surface of the screw shaft 17 is meshed with the screw portion 16 so that the worm wheel 14 is The screw shaft 17 is screwed so as to move back and forth. The upper end of the screw shaft 17 penetrates a hole 3a formed in the spoiler base 3 and is connected to a connecting member 19 attached to the bottom surface of the movable shaft 4 by a shaft 20.

With the above configuration, the worm gear 12 rotates by driving the motor 11 in the normal direction from the state shown in FIG. 4, and the worm wheel 14 in which the gear 15 meshes with the worm gear 12 rotates. . At this time, the worm wheel 14 does not move up and down, and the upper end of the screw shaft 17 is connected to the movable blade 4 and does not rotate. Therefore, when the worm wheel 14 rotates, the screw shaft 17 is screwed onto the threaded portion 16 on the inner peripheral portion thereof. The screw shaft 17 with which the portion 18 meshes moves up as shown in FIG. Therefore, the movable wing 4 swings so that its rear part rises.

Further, by rotating the motor 11 in the reverse direction from this state, the worm wheel 14 rotates in the opposite direction via the worm gear 12 and the screw shaft 17 descends, so that the movable blade 4 swings so that the rear part thereof descends. To do.

[0012]

[Effect of the device]

 As described above, according to the present invention, the screw shaft is screwed to the screw portion formed on the inner peripheral portion of the gear rotated by the motor so as to be able to move forward and backward, and the screw shaft is connected to the movable blade, When the motor is rotationally driven, the gear rotates and the screw shaft advances and retreats, so that the movable blade oscillates.This makes it possible to reduce the size, weight and simplification of the movable blade drive device. ..

[Brief description of drawings]

FIG. 1 is a rear perspective view of a vehicle to which a movable wing drive device according to the present invention is applied.

FIG. 2 is an exploded perspective view of a spoiler including the drive device.

FIG. 3 is a plan view of the drive device.

FIG. 4 is a cross-sectional view of a state in which the movable blade is lowered by the drive device.

FIG. 5 is a cross-sectional view of a state in which the movable blade is raised by the drive device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Spoiler, 3 ... Spoiler base, 4 ... Movable blade, 6 ... Drive device, 11 ... Motor, 12 ... Worm gear, 14 ... Worm wheel, 15 ... Gear, 16, 18
... screw part, 17 ... screw shaft, 19 ... connecting member.

Claims (1)

[Scope of utility model registration request] 1. A drive device for swinging a movable blade, which is swingably attached to a spoiler base, wherein the drive device is capable of advancing and retracting a screw shaft to a screw portion formed on an inner peripheral portion of a gear rotated by a motor. A movable wing driving device, wherein the screw shaft is connected to the movable wing.