JP2000074159A - Selective rotating device for a plurality of driven shafts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a selective rotating device for a plurality of driver gears to perform different motions using a single motor. SOLUTION: A selective rotation device is composed of a main gear 6 rotated by one motor capable of rotating in both directions regular and reverse and having teeth 6t only on one part of the periphery, a plurality of driven gears 7A-7C positioned at a certain spacing in the circumferential direction in positions to mesh with the main gear 6, and a plurality of driven shafts 9A-9C attached to the driven gears through one-way clutches 8A-8C, wherein the center angle of that part of main gear having teeth 6t is set so as not to mesh simultaneously with two adjoining driven gears, and the one-way clutches 8A-8C are arranged so as to transmit the power to the driven shafts 8A-8C when the driver gears 7A-7C rotate in the regular direction upon meshing with the main gear 6 and not to transmit the power to the driven shafts when rotate in the reverse direction, and selection of the driven shaft to be driven is made by rotating the main gear 6 in the reverse direction, while the rotational drive of the selected driven shaft is made by rotating the main gear 6 in the regular direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for selectively rotating more driven shafts than a rotary drive source without manually switching the driven shafts.

[0002]

2. Description of the Related Art For example, when a power window, a wiper and an electric door lock device are incorporated in a rear door of an RV vehicle,
Conventionally, each of them has a driving motor.

[0003]

However, in the above-described structure, the number of motors used increases, which not only increases the cost but also makes it difficult to secure a space for storing the motors.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an apparatus for selectively rotating a plurality of driven shafts in order to perform a plurality of operations with a single rotation drive source (motor, etc.). Is to do.

[0005]

In order to achieve the above object, a selective rotation driving device for a plurality of driven shafts according to the present invention has teeth only on a part which is rotationally driven by a rotation driving source capable of normal rotation and reverse rotation. A main gear, a plurality of driven gears circumferentially arranged at positions meshing with the main gear, and a plurality of driven shafts attached to the driven gears via a one-way clutch, wherein the one-way clutch is driven by When the gear rotates in one direction due to meshing with the main gear, power is transmitted to the driven shaft, and when the gear rotates in the other direction, power is not transmitted to the driven shaft. The main gear is rotated in the other direction, and the rotation of the selected driven shaft is performed by rotating the main gear in one direction. .

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show one embodiment of the present invention. In this embodiment, the power window, the wiper and the electric door lock device of the rear door of the RV vehicle are integrated into one.
It is for driving with two motors.

In FIG. 1, reference numeral 1 denotes a fixed frame, 2 denotes a motor fixed to the back of the fixed frame 1 and capable of rotating forward and backward (see FIG. 2), and 3 denotes a worm gear directly connected to the motor 2. The rotation of the worm gear 3 is transmitted to the main gear 6 by the worm wheel 4 and the center shaft 5. The main gear 6 has teeth 6t formed only on a part of the outer circumference, and the other outer circumference is an arc having a smaller diameter than the root circle. In this embodiment, the central angle of the portion where the teeth 6t are formed is 72 °. Since the main gear 6 only needs to have the fixed portion of the center shaft 5 and the teeth 6t, the main gear 6 does not need to have a disk shape, and may have a fan shape, for example.

[0008] Around the main gear 6, 4
Two driven gears 7A to 7D are arranged at 90 ° intervals.
First to third driven shafts 9A to 9C are attached to the first to third driven gears 7A to 7C via one-way clutches 8A to 8C, respectively. Further, a fourth driven shaft 9D is attached to the fourth driven gear 7D via a torque limiter 10. The first driven shaft 9A is for raising the power window, the second driven shaft 9B is for lowering the power window, the third driven shaft 9C is for door lock, and the fourth driven shaft 9D is for wiper.

The rotation of the first driven shaft 9A is controlled by the gears 11A and 12A.
A and 13A are transmitted to the gear 14 for power window drive. The rotation of the second driven shaft 9B is controlled by the gears 11B and 12B.
The power is transmitted to the power window driving gear 14 through B, 13B, and 15. Gears 7A and 7B, 11A and 11B, 12A and 12
B, 13A and 13B, and 14 and 15 are the same size.
The gear 15 is for reversing the rotation direction of the gear 14 by the second driven shaft 9B from the rotation direction of the gear 14 by the rotation of the first driven shaft 9A.

The rotation of the third driven shaft 9C is transmitted to a cam 16 directly connected to the third driven shaft 9C, and the rotation of the cam 16 causes a cam follower 17 for door lock to reciprocate. Further, the rotation of the fourth driven shaft 9D is transmitted to the gear 18 for driving the wiper. 19 is a wiper. The wiper 19 is not directly connected to the gear 18, but is driven from the gear 18 via another power transmission mechanism (not shown), but is shown to show the direction.

The main gear 6 rotates forward and backward according to the rotation of the motor 2. In this embodiment, rotation of the main gear 6 in the counterclockwise direction in FIG. 1 is referred to as forward rotation, and rotation in the clockwise direction is referred to as reverse rotation. One-way clutch 8A-8
C transmits the rotation of the driven gears 7A to 7C to the driven shafts 9A to 9C when the main gear 6 rotates forward, and transmits the rotation of the driven gears 7A to 7C to the driven shafts 9A to 9C when the main gear 6 rotates reversely. Incorporated to not tell. Therefore, the main gear 6
Do not rotate, the driven shafts 9A to 9C do not rotate. When the wiper 19 is at the standby position (the position in FIG. 1), even if the main gear 6 rotates in the reverse direction, the torque limiter 10 works and the wiper 19 does not move.

With the above configuration, it is possible to select which driven shaft 9A to 9D to drive by rotating the main gear 6 in the reverse direction. The position of the main gear 6 is detected by a sensor, and the rotation angle of the main gear 6 is controlled by a motor control device according to a command input from a switch or the like.
Hereinafter, the operation of this device will be described.

When closing the power window (FIG. 4) First, the main gear 6 is rotated in the reverse direction (clockwise rotation), and its teeth 6t are shifted to the first and fourth driven gears 7 as shown in FIG.
It is located between A and 7D. At this time, the power window is in a fully opened state. Thereafter, when the main gear 6 is rotated forward, the teeth 6t mesh with the first driven gear 7A as shown in FIG. 4B, and the driven shaft 9A is driven via the one-way clutch 8A.
To rotate the power window drive gear 14 in the direction in which the power window rises. When the main gear 6 further rotates forward and the teeth 6t come between the first and second driven gears 6A and 6B as shown in FIG. 4C, the power window is fully closed.

When the power window is raised and stopped in a half-open state, the main gear 6 is stopped in the middle of the normal rotation. Then, when raising the power window further, the main gear 6
Is rotated forward. When the operation shifts to another operation, the main gear 6 is rotated in the reverse direction to select the engagement start position with another driven gear. When closing the half-open power window after performing another operation, the main gear 6 is rotated forward, after the main gear 6 is rotated in the reverse direction to the half-open position.

When opening the power window (FIG. 5) First, the main gear 6 is rotated in the reverse direction, and the teeth 6t are moved to the position shown in FIG.
And between the first and second driven gears 7A and 7B. At this time, the power window is in a fully closed state. Thereafter, when the main gear 6 is rotated forward, the teeth 6t are moved to the position shown in FIG.
As described above, the driven gear 9B is engaged with the second driven gear 7B, the driven shaft 9B is rotated via the one-way clutch 8B, and the power window driving gear 14 is rotated in the direction in which the power window moves up and down. When the main gear 6 further rotates forward and the tooth 6t comes between the second and third driven gears 7B and 7C as shown in FIG. 5C, the power window is fully opened.

When the power window is lowered and stopped in a half-open state, the forward rotation of the main gear 6 is stopped halfway. Then, when lowering the power window further, the main gear 6
Is rotated forward. When the operation shifts to another operation, the main gear 6 is rotated in the reverse direction to select the engagement start position with another driven gear. To further open the half-opened power window after performing another operation, the main gear 6 is rotated in the reverse direction to return to the half-open position, and then the main gear 6 is rotated forward.

When Operating the Door Lock Device (FIG. 6) First, the main gear 6 is rotated in the reverse direction, and the teeth 6t are moved to the position shown in FIG.
And between the second and third driven gears 7B and 7C. At this time, the door lock device is in an open state. Thereafter, when the main gear 6 is rotated forward, the teeth 6t mesh with the third driven gear 6C as shown in FIG. 6B, the driven shaft 9C and the cam 16 rotate, and the cam follower 17 closes (locks).
Move to the position. When the main gear 6 further rotates forward, the teeth 5
t is the third and fourth driven gears 7C and 7 as shown in FIG.
When it comes to D, the cam follower 17 stops at the closed position. Thereafter, when the door lock device is opened, the main gear 6 is rotated in the reverse direction to re-set the teeth 6t to the second and third driven gears 7.
After being positioned between B and 7C, it is rotated forward. This returns to the original open state.

In the case of operating the wiper (FIG. 7) First, the main gear 6 is rotated in the reverse direction, and the teeth 6t are moved to the state shown in FIG.
And between the third and fourth driven gears 7C and 7D. At this time, the wiper 19 is at the standby position. Wiper
When 19 is in the standby position, even if the fourth driven gear 7D rotates due to the reverse rotation of the main gear 6, the fourth driven shaft 9D cannot rotate in the same direction as the fourth driven gear 9D. Working, the fourth driven gear 7D does not rotate.
Thereafter, when the main gear 6 is rotated forward, the teeth 6t are moved to the positions shown in FIG.
As shown in (b), the wiper 19 engages with the third driven gear 6C, and the wiper 19 moves away from the standby position. exercise. FIG. 7C shows a state where the wiper 19 comes to the opposite side to the standby position and the main gear 6 shifts from forward rotation to reverse rotation.

When the wiper is stopped, the main gear 6 is finally rotated reversely, and when the teeth 6t come between the third and fourth driven gears 7C and 7D as shown in FIG. The gear 6 is stopped.

In the above embodiment, the case where the power window of the rear door, the wiper, and the door lock device are operated in the automobile has been described. However, the present invention is not limited to this. The present invention can also be applied to a case where the slide adjustment, the reclining adjustment, the front end vertical adjustment, and the rear end vertical adjustment are performed by one motor. Also, the present invention is applicable to an apparatus other than an automobile that performs a plurality of operations with one motor.

[0021]

As described above, according to the present invention, 1
Since a plurality of driven shafts can be selectively driven by one rotary drive source, it is possible to perform a plurality of operations with one rotary drive source, and it is possible to reduce the number of rotary drive sources used and as a whole Can be reduced in size or thickness, so that installation space can be easily secured.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the apparatus of the present invention.

FIG. 2 is a left side view of the apparatus of FIG.

FIG. 3 is a bottom view of the device of FIG. 1;

4 (a) to 4 (c) are explanatory views showing the operation of the apparatus of FIG. 1 when closing a power window.

5A to 5C are front views showing the operation of the apparatus shown in FIG. 1 when the power window is opened.

FIGS. 6A to 6C are front views showing the operation of the apparatus shown in FIG. 1 when opening and closing a door lock device.

7 (a) to 7 (c) are front views showing the operation of the apparatus shown in FIG. 1 when driving a wiper.

[Explanation of symbols]

 1: fixed frame 2: motor 3: worm gear 4: worm wheel 5: center shaft 6: main gear 6t: teeth 7A to 7D: driven gear 8A to 8C: one-way clutch 9A to 9D: driven shaft 10: torque limiter 14: power Wind drive gear 16: Cam 17: Door follower drive cam follower 18: Wiper drive gear 19: Wiper

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3D025 AA01 AC01 AD03 AE02 AE57 3D127 AA17 CB05 DF04 DF12 3J009 DA17 DA18 EA06 EA11 EA19 EA25 EA34 EC10 ED06 FA04

Claims (1)

[Claims] 1. A main gear (6) having only a part of teeth (6t) rotatably driven by a rotation drive source capable of normal rotation and reverse rotation, and a plurality of gears circumferentially arranged at positions meshing with the main gear. , And a plurality of driven shafts (9A to 9C) attached to these driven gears via one-way clutches (8A to 8C). The one-way clutches (8A to 8C) Driven gear (7
A to 7C) rotate in one direction due to engagement with the main gear (6) and transmit power to the driven shafts (9A to 9C),
When rotating in the other direction, it is incorporated so as not to transmit power to the driven shafts (9A to 9C). The driven shaft to be driven is selected by rotating the main gear (6) in the other direction. The driven rotation of a plurality of driven shafts is performed by rotating the main gear (6) in one direction.