JPH0441233B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is applicable to a plurality of operated devices, such as when selectively releasing a trunk lock device and a fuel lid lock device of a car from a remote location. The present invention relates to an actuator having a plurality of output members for selectively operating a device.

(Prior Art) A conventional actuator in which, for example, two different locking devices can be selectively released by one driving means is disclosed in U.S. Pat.
There is one as disclosed in Publication No. 121866.

As schematically shown in FIG. 5, this actuator has an arc-shaped elongated hole c bored in the swinging end of an operating lever b that is returned to a neutral position by a spring a.
Different locking devices d,
When connecting members f and g connected to e are respectively engaged and the actuating lever b is swung to the right R by a motor (not shown), one of the connecting members 5 is moved and the other is The locking device d can be released, and when the operating lever b is swung to the left L, the other connecting member g can be moved to release the other locking device e. .

(Problems to be Solved by the Invention) In the conventional actuator described above, when the operating stroke of each lock device d, e becomes large,
The elongated hole c must be made longer and the radius of the actuating lever b must be made larger, which increases the size of the entire device and requires adjustment of the neutral position of the actuating lever b and the position setting of each connecting member f, g. This is troublesome, and during operation, the ends of the connecting members f and g touch the operating lever b.
Since the connecting members f and g are moved along an arcuate trajectory centered on the rotation center O, there are problems such as that it is troublesome to hold the connecting members f and g.

An object of the present invention is to provide an actuator including a plurality of output members that solves all of these problems.

(Means for Solving the Problems) In order to solve the above problems, in the present invention, an arm rotatably provided in the case,
A plurality of output members connected to a rotating shaft of a reversible motor and to different operated devices via a reduction gear and an electromagnetic clutch are connected in a direction substantially tangential to the rotational trajectory of the tip of the arm. By rotating the arm in either the forward or reverse direction,
The distal ends of the arms are provided in the case so that either one can be moved from an inactive position to an active position.

(Function) In the present invention, by energizing the electromagnetic clutch and the motor and rotating the arm in either the forward or reverse direction, the tip of the arm directs one of the output members toward the operating position. the output member can be moved to operate an operated device coupled to the output member; and by rotating the arm in the opposite direction, another output member can be moved toward an actuated position;
Another operated position can be operated.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4.

1 is a hollow box-shaped case, and 2 is a lid plate that closes the upper opening of the case 1.

A motor 3 is provided at the center of the bottom of the case 1, and the upper end of a rotating shaft 4 protruding upward from the center of the motor 3 is supported by fitting into a bearing sleeve 5 fixed to the cover plate 2. ing.

A sun gear 6 is firmly fitted to the rotating shaft 4, and a disc 7 is pivotally fitted above the sun gear 6.

Three planetary gears 8 are mounted on the lower surface of the disc 7, and a shaft 9
They are each pivotally connected to each other at equal intervals in the circumferential direction.

Each planetary gear 8 is coaxially formed integrally with a first gear 8a that meshes with the sun gear 6, and a second gear 8b whose number of teeth is 1 less than that of the first gear 8a. It's getting more familiar.

Boss portion 3 of motor 3 below planetary gear 8
A first internal gear 10 is rotatably provided around a.

On the upper part of the first internal gear 10, each planetary gear 8
Internal teeth 10a that mesh with the first gear 8a are formed, and an enlarged diameter flange 10b extending toward the motor 3 is also formed at the lower part.

An electromagnetic clutch 11 is provided below the first internal gear 10 and between the outer periphery of the motor 3 and the case 1 .

This electromagnetic clutch 11 consists of a field core 1 comprising a coil 12 wound around a motor 3.
3, and a magnetic armature 14 fitted between the field core 13 and the first internal gear 10 to be rotatable and slightly slidable in the vertical direction on the outer periphery of the motor 3. ing.

Field core 13 is fixed to case 1.

In the armature 14, a large number of holes 15 facing in the vertical direction are bored in two rows, inside and outside, and at appropriate intervals in the circumferential direction.
Expanded diameter flange 10b in first internal gear 10
The armature 14 can be moved slightly vertically relative to the first internal gear 10 by fitting into a large number of pins 16 protruding from the lower surface of the It is unable to rotate.

Thus, by energizing the coil 12,
The armature 14 is magnetically attached to the field core 13, the armature 14 is fixed to the case 1 so as not to rotate, and the pin 1 is attached to the armature 14.
By stopping the current supply to the coil 12, the restraint of the armature 14 is released, and the armature 14 and the first internal gear are rotated. The gear 10 can rotate freely.

On the outer periphery of the bearing tube 5 between the disc 7 and the cover plate 2, a second internal gear 17 and a first internal gear 1 are arranged.
It is fitted onto the outside so that it can rotate relative to 0.

Internal teeth 17a that mesh with the second gear 8b of each planetary gear 8 are formed on the lower inner surface of the second internal gear 17, and an enlarged diameter flange 17 is formed on the outer periphery of the middle portion.
b is formed.

In this embodiment, the number of internal teeth 17a is the same as the number of internal teeth 10a in the first internal gear 10.

In this way, the sun gear 6, the planetary gears 8, the first internal gear 10, the second internal gear 17, etc. form a speed reduction device called the planetary gear device A.

Expanded diameter flange 17 in second internal gear 17
An arm 18 extending in the radial direction is connected to a part of the outer periphery of the arm 18, and a downwardly directed projection 18a is provided on the lower surface of the tip of the arm 18.

A pair of front and rear rectangular tube portions 1a and 1b are connected to the upper part of the case 1 and extend toward the right. Guide grooves 19, 2 facing in the left and right direction
0 is formed.

The bottom surfaces 19a and 20a of each guide groove 19 and 20 are
Expanded diameter flange 10b in first internal gear 10
It is made to be at the same level as the upper edge of.

In each of the guide grooves 19 and 20, output members 21 and 22 having upward protrusions 21a, 21b, 22a, and 22b at the left and right ends are provided so as to be slidable in the left and right directions, respectively.

Left protruding pieces 21a, 22 of output members 21, 22
a is the enlarged diameter flange 10b of the first internal gear 10;
and the enlarged-diameter flange 17b of the second internal gear 17, so that it can slide in the left-right direction between them, and the right projecting piece 21b of the output members 21 and 22 , 22b have wires 25, 2 inserted through the flexible outer tubes 23, 24.
A wire end member 25a formed at one end of 6,
26a is fixed.

One end of the outer tube 23 is fixed to the end of the rectangular tube portion 1a of the case 1, and the other end is fixed to the base plate 28 of the trunk lock device 27. The wire end member 25b fixed to the end of the wire 25 extending from the other end of the outer tube 23 is attached to the upper end of the latch 30 which is pivotally connected to the base plate 28 of the trunk lock device 27 with a shaft 29. wire 2
5 is pulled, the latch 30 is moved to the first
The trunk (not shown) can be opened by rotating from the engagement position shown by solid lines in the figure to the release position shown by imaginary lines.

31 is locked at one end to the upper end of the latch 30 and at the other end to one side line of the base plate 28,
It is a tension spring that constantly biases the latch 30 toward the engaged position.

One end of the outer tube 24 is fixed to the end of the rectangular tube portion 1b of the case 1, and the other end is fixed to the vehicle body (not shown) in the vicinity of the fuel lid locking device 32. Wire 2 extending from the other end of this outer tube 24
Wire end member 26b fixed to the terminal of No. 6
is locked to the proximal end of the locking rod 33 in the locking device 32, and by pulling the wire 26, the locking rod 33 is engaged with the fuel lid (not shown) as shown by the solid line in FIG. The fuel lid can be opened by pulling it from the alignment position toward the release position shown by the imaginary line.

A compression spring 34 is compressed within the case 35 of the locking device 32 and constantly biases the locking rod 33 toward the engagement position.

Each of the output members 21 and 22 is normally stopped at the inoperative position shown by the solid line in FIG. 1, but when the arm 18 rotates clockwise in FIG. 1 together with the second internal gear 17. When the protrusion 18a at the tip of the arm 18 comes into contact with the protrusion 21a of the output member 21, and when the arm 18 rotates counterclockwise in FIG. 1 and are adapted to be moved into the operating position shown in phantom in FIG.

When the output member 21 is moved to the operating position, the wire 25 can be pulled to release the trunk lock device 27 as described above, and when the output member 22 is moved to the operating position, By pulling the wire 26, the fuel lid locking device 32 can be operated as described above.

In this embodiment, the tension spring 31 and the compression spring 34 move the respective output members 21 and 22 to the inoperative lever position via the latch 30 and the wire 25, and the locking rod 33 and the wire 26, respectively. It serves as a biasing means that constantly biases towards. However, for example, each output member 21, 22 is always biased toward the inoperative position by a compression spring (not shown) that is compressed between the left end of each output member 21, 22 and the inner surface of the left side wall of the case 1. You may also do so.

Reference numeral 36 denotes a mounting member provided at the center of both left and right sides of the case 1 for mounting the case 1 on a vehicle body, etc., and has a screw hole 37 for inserting a bolt (not shown) in the center.

Next, the operation of this embodiment will be explained.

When inactive, the output members 21 and 22 are respectively located in the inoperative position, and the arm 18 is located between the protrusions 21a and 22a of both the output members 21 and 22, and on the right side of the protrusions 21a and 22a. It is stopped at an appropriate position.

From this state, after energizing the coil 12 in the electromagnetic clutch 11, or at the same time, the motor 3 is rotated in a predetermined normal rotation direction, for example, clockwise in FIG. 1 (hereinafter clockwise or counterclockwise). When referring to the above, it refers to the one shown in Fig. 1.) is energized so that it rotates.

Then, armature 14 is connected to field core 1.
3, the armature 14 and the first internal gear 10 are fixed to the case 1.

Further, due to the operation of the motor 3, the rotating shaft 4 and the sun gear 6 rotate clockwise, and the planetary gear 8 rotates clockwise around the sun gear 6 while rotating counterclockwise along the internal teeth 10a and 17a. revolve in the direction.

At this time, due to the difference in the number of teeth between the first gear 8a and the second gear 8b in the planetary gear 8, the first internal gear 10 moves counterclockwise and the second internal gear 1
7 are each given a relative rotational force in the clockwise direction.

However, since the first internal gear 10 is connected to the case 1 by the electromagnetic clutch 11 and is prevented from rotating, all the rotational force of the motor 3 is transferred to the second internal gear 10.
is applied to the second internal gear 17 and the second internal gear 17
is rotated clockwise. The reduction ratio at this time is extremely large, so with the small output motor 3,
The second internal gear 17 can be rotated strongly.

As the second internal gear 17 rotates clockwise, the arm 18 is rotated in the same direction, and its protrusion 18a abuts the protrusion 21a of the output member 21, causing the output member 21 to It is moved toward the operating position against the biasing force of the tension spring 31.

When the output member 21 is moved to the actuated position,
The wire 25 is pulled and the trunk lock device 2
7 is released and the trunk opens.

When this opening of the trunk is detected by a detection device (not shown) and energization to the coil 12 and motor 3 is stopped, the adsorption force of the armature 14 to the field core 13 disappears, and the armature 14 and the first internal gear 10 can now rotate freely, and the rotation of the rotating shaft 4 and the sun gear 8 is stopped.

Then, the output member 21 is returned to the inoperative position by the biasing force of the tension spring 31, and the arm 18 is accordingly returned to the position shown by the solid line in FIG.

At this time, the arm 18 and the second internal gear 17
, a planetary gear 8, a sun gear 6, a rotating shaft 4,
The first internal gear 10 and the armature 14 integrally rotate by a small angle around the central axis of the rotating shaft 4, but the rotation angle at this time is small, and at this time the electromagnetic clutch 11 is inoperative and the rotation of the armature 14 is not restrained, so the resistance force at this time is not so large, and the force of the tension spring 31 alone is enough to return the armature 14 to its original position.

If it is desired to release the locking device 32 of the fuel lid, the coil 1 in the electromagnetic clutch 11
After energizing motor 2 or at the same time, motor 3
Then, the rotating shaft 4 is energized so that it rotates in the opposite direction to the above case, that is, in the counterclockwise direction.

Then, the arm 18 is rotated counterclockwise in the same manner as in the case described above, only that the rotation direction of each gear is reversed, and the protrusion 18a is brought into contact with the protrusion 22a of the output member 22. After contacting, the output member 22 is moved toward the actuation position and the wire 2
6 is pulled to release the locking device 32.

Thereafter, when a detection device (not shown) detects that the fuel lid has opened and stops energizing the electromagnetic clutch 11 and the motor 3, the output member 22 is returned to the inoperative position by the biasing force of the compression spring 34. At the same time, the arm 18 is
It will be rotated back slightly clockwise.

(Modified Example) In the above-described embodiment, the planetary gear unit A is used as the reduction gear, but this may be composed of a spur gear train.

(Effect of the invention) As is clear from the above, in the present invention,
A plurality of output members connected to different operated devices can be slid in a substantially tangential direction with respect to a rotation locus of a distal end of an arm rotated by a motor,
In addition, by rotating the arm in either the forward or reverse direction, one of the ends of the arm can be moved from the non-operating position to the operating position. When moving the connecting member f or g, the other connecting member g
Or, even if there is no risk that the rotation range of the actuating lever b will be restricted due to the presence of f, and the effective length from the rotation center to the tip of the arm is short, the movement stroke of each output member can be increased. As a result, the entire device can be made smaller and more dense.

Furthermore, in the present invention, within a certain limit from when the distal end of the arm engages with each output member until it disengages, the operating position and non-operating position of each output member are set within the range of movement of other output members. It can be determined freely regardless of the relationship, and the movement stroke between each output member and the operated device can be roughly and easily adjusted, and there is no need to adjust the movement stroke between each output member and the arm. There is an advantage.

Furthermore, since the locus of movement of each output member is a straight line, there is also the advantage that the means for supporting and guiding them is simple.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention with the lid plate removed and each output member connected to two separate locking devices, and FIG.
Figure 1 is a front view of only the actuator, Figure 3 is an enlarged longitudinal sectional front view taken along line X--X in Figure 1,
The figure is a longitudinal sectional front view along the Y-Y line in Figure 1,
The figure is a schematic front view showing an example of a conventional actuator. DESCRIPTION OF SYMBOLS 1... Case, 2... Cover plate, 3... Motor, 4... Rotating shaft, 6... Sun gear, 8... Planetary gear, 10... First internal gear, 11... Electromagnetic clutch, 13... Field core, 14... Armature , 17... Second internal gear, 18... Arm, 20, 22... Output member, 2
5, 26... Wire, 27... Trunk lock device,
32... Fuel lid locking device, A... Planetary gear device (reduction gear).

Claims (1)

[Claims] 1. An arm rotatably installed inside the case,
A plurality of output members connected to the rotation shaft of the reversible motor and to different operated devices via a reduction gear and an electromagnetic clutch are connected to each other in a direction substantially tangential to the rotation locus of the tip of the arm. In addition to being able to slide in the direction, by rotating the arm in either the forward or reverse direction,
An actuator comprising a plurality of output members, characterized in that one of the distal ends of the arm is provided in the case so as to be moved from a non-operating position to an operating position.