JPS61191779A - Actuator equipped with plural output members - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

(Prior Art) A conventional actuator in which two different locking devices can be selectively released by one driving means is disclosed in Japanese Utility Model Application Publication No. 55-121866. There is something.

As shown in FIG. 5, this actuator consists of an operating lever (b) that is returned to a neutral position by a spring (a)
) is provided with an arc-shaped elongated hole (a) at the swinging end thereof, and a connecting member (f) connected to different locking devices (d) and (e) at both ends of this elongated hole (Q). (g) respectively, and move the operating lever (b) to the right (R) by a motor (not shown).
When the lever is swung to the left, one of the locking devices (d) can be released by moving one of the connecting members (5), and the operating lever (b) can be swung to the left (L). When
By moving the other connecting member (g), the other locking device (e) can be released.

(Problems to be Solved by the Invention) In the conventional actuator described above, when the operating stroke of each locking device (d) and (e) becomes large, the elongated hole (c
) must be made longer and the radius of the actuating lever (b) larger, which increases the size of the entire device and requires the setting of the neutral position of the actuating lever (b) and the adjustment of each connecting member (f) and (g). Adjustment with the position setting is troublesome, and when activated, the ends of the connecting members (f) and (g) rotate in an arc shape centered on the rotation center (0) of t<-(1)). Since the connecting members (f) and (g) are moved along a trajectory, there are problems in 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 a case is connected to a reversible motor through a speed reduction device and an electromagnetic clutch. A plurality of output members connected to the shaft and connected to different operated devices can be slid approximately tangentially to the rotation locus of the tip of the arm, and the arm can be moved either forward or backward. The arm is provided in the case so that one of the distal ends of the arm can be moved from an inoperative position to an operative position by rotation of the arm.

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

(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) that projects upward from the center of the motor (3) is fixed to the cover plate (2). Bearing tube (
5) Fitted and supported within.

A sun gear (6) is firmly fitted to the rotating shaft (4), and a disk (7) is pivotally fitted above it.

On the lower surface of the disc (7), three planetary gears (8) are attached to the shaft (
9), so that they are equally spaced from each other in the circumferential direction,
Each is pivoted.

Each planetary gear (8) has a first gear (8a) that meshes with the sun gear (6), and a 21i1 wheel (8b) whose number of teeth is 1 less than the number of teeth of this first gear (8a). , which are coaxially formed integrally.

The boss part of the motor (3) below the planetary gear (8) (
A first internal gear (10) is rotatably provided around 3a).

At the top 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 bottom.

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

This electromagnetic clutch (11) includes a field core (1) comprising a coil (12) wound around a motor (3).
3), and between this field core (13) and the first internal gear (10), a magnetic material is rotatably fitted around the outer periphery of the motor (3) and is slightly slidable in the vertical direction. It consists of a body armature (14).

The field core (13) is fixed to the case (1).

The armature (14) has many holes (
15) are bored in two rows, inside and outside, at appropriate intervals in the circumferential direction, and these holes (15) are connected to the lower surface of the enlarged diameter flange (10b) of the first internal gear (10). The armature (14) is fitted with a large number of pins (16) protruding from the first internal gear (1
0), it is slightly movable in the vertical direction, and is not relatively rotatable around the rotation axis (4).

Thus, by energizing the coil (12), the armature (14) is magnetically attached to the field core (13),
Make sure that the armature (14) does not rotate once.
) and then attach the pin (16) to the armature (14).
) can prevent the rotation of the first internal gear (10) that is engaged with the coil (12), and by stopping the energization to the coil (12), the restraint of the armature (14) is released and and the first internal gear (10) can freely rotate.

On the outer periphery of the bearing tube (5) between the disk (7) and the cover plate (2), a second internal gear (17) is arranged to rotate relative to the first internal gear (10). Possibly fitted externally.

The lower inner surface of the second internal gear (17) has each planetary gear (
Internal teeth (17a) that mesh with the second gear (8b) of 8) are formed, and an enlarged diameter flange (17b
) is formed.

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

Thus, by the sun gear (6), the planet gear (8), the first internal gear (10), the second internal gear (17), etc.

A speed reduction device is formed as a planetary gear device (A).

Expanded diameter flange (17b) on the second internal gear (17)
) is provided with an arm (1) extending in the radial direction.
8) are connected to each other, and a downwardly directed projection (18a) is provided on the lower surface of the tip of this arm (18).

At the top of the case (1), there are front and rear panels extending toward the right.
A pair of rectangular cylinder parts (la) and (lb) are arranged in series, and a guide groove (19) ( 20)
is formed.

Bottom surface (19a) of each guide groove (19) (20) (2Q
a) is arranged to be at the same level as the upper edge of the enlarged diameter flange (10b) of the first internal gear (10).

Each guide groove (19) (20) has upward protruding pieces (21a) (21b) (22a) (22b) at the left and right ends.
Output members (21) and (22) are provided so as to be slidable in the left and right directions, respectively.

The left protruding piece (21a) of the output member (21) (22) (
22a) is the enlarged diameter flange (
10b) and the enlarged diameter flange (17) of the second internal gear (17)
The output member (21) (22b) is sandwiched between the output members (21) and (22
) are wire end members (25a) formed at one ends of wires (25) (26) that are inserted into the flexible outer tubes (23) (24). ) (26a) is fixed.

One end of the outer tube (23) is fixed to the end of the square tube part (1a) of the case (1), and the other end is fixed to the base plate (28) of the trunk lock device (27). There is. A wire end member (25b) fixed to the terminal of the wire (25) extending from the other end of the outer tube (23) is attached to the trunk lock device (27).
), the wire (2
5) is pulled, the latch (3o) is
The trunk (as shown) can be opened by rotating it from the engaged position shown by the solid line in the figure to the released position shown by the imaginary line.

(31) is locked at one end to the upper end of the latch (3o) and at the other end to the negative side line of the base plate (28), and constantly urges the latch (30) toward the engaged position. It is a tension spring.

One end of the outer tube (24) is fixed to the end of the rectangular tube part (lb) of the case (1), and the other end is attached to the vehicle body (as shown) near the fuel lid locking device (32). It is attached to. A wire end member (26b) fixed to the end of the wire (26) extending from the other end of the outer tube (24) is attached to the base end of the locking rod (33) in the locking device (32). By being locked and pulling the wire (26), the locking rod (
33) from the engagement position with the fuel lid (when shown) shown by the solid line in FIG. 1 toward the release position shown by the imaginary line to open the fuel lid.

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

Each output member (21) (22) is normally stopped at the inoperative position shown by the solid line in Fig. 1, but the second internal gear (
17), and when the arm (18) rotates clockwise in Fig. 1, the protrusion (
18a) 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. 1.

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 the output member (22) is also activated. When moved to a position,
By pulling the wire (26), the locking device (32) of the fujiel lid can be released as described above.

In addition, in this embodiment, the tension spring (31) and the compression spring (34) are connected to the latch (30) and the wire (25).
, the locking rod (33), and the wire (26), respectively, serve as a biasing means that constantly biases each output member (21) (22) toward the non-operating position. However, for example, each output member (21) (22) can be made to stay connected by a compression spring (the path shown in the figure) 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). It may also be configured to always be biased toward the operating position.

(36) is a mounting member provided at the center of the left and right sides of the case (1) for attaching the case (1) to the vehicle body, etc., and has a screw hole (37) for inserting a bolt (path shown in the figure) in the center. ing.

Next, the operation of this embodiment will be explained.

When inactive, the output members (21) (22) are respectively located in the inactive position, and the arm (18) is located between the projecting pieces (21a) (22a) of the surface output members (21) (22), and These protrusions (21a) and (22a) are stopped at appropriate positions to the right.

From this state, the coil (
12) or at the same time, the motor (3)
↓The rotating shaft (4) rotates in a predetermined normal rotation direction, for example, clockwise in FIG. 1 (hereinafter, clockwise or counterclockwise direction refers to the direction in FIG. 1).

) is energized so that it rotates.

Then, the armature (14) is connected to the field core (13).
), the armature (14) and the first internal gear (lO) 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 counterclockwise along the internal teeth (10a) (17a). While rotating, it revolves clockwise around the sun gear (6).

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 Gear (17)
) are each given a relative rotational force in the clockwise direction.

However, the first internal gear (io) is connected to the electromagnetic clutch (1
Since the motor (3) is connected to the case (1) and prevented from rotating by the motor (1), all of the rotational force of the motor (3) is applied to the second internal gear (17), and the second internal gear ( 17) is rotated clockwise. Since the reduction ratio at this time is extremely large, the second internal gear (17) can be powerfully rotated by the smaller motor (3).

As the second internal gear (17) rotates clockwise,
The arm (18) is rotated in the same direction, and its protrusion (1
8a) comes into contact with the protrusion (21a) of the output member (21) and moves the output member (21) toward the first operating position against the biasing force of the tension spring (31).

When the output member (21) is moved to the activated position, the wire (25) is pulled and the trunk locking device (27)
is released and the trunk opens.

When the opening of this trunk is detected by a detection device (not shown) and the 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, while the rotating shaft (4) and the sun gear (8) stop rotating.

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), and a rotating shaft (4).
), the first internal gear (10), and the armature (14
) together 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 inactive. Since the rotation of the armature (14) is not restricted, the resistance force at this time is not so large, and the force of the tension spring (31) alone is sufficient to return the armature (14) to its original position.

If you want to release the locking device (32) of the fuel lid, use the coil (12) in the electromagnetic clutch (11).
After energizing, or at the same time, the motor (3) is energized so that the rotating shaft (4) rotates in the opposite direction to that described above, that is, counterclockwise.

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 its protrusion (18a) is connected to the output member (22).
After contacting the protrusion (22a), the output member (22) is moved toward the operating position, the wire (26) is pulled, and the locking device (32) is released.

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

(Modified Example) In the above-described embodiment, the planetary gear device (A) is used as the speed reduction device, but it may be formed of a spur gear train.

(Effects of the Invention) As is clear from the above, in the present invention, a plurality of output members connected to different operated devices are arranged approximately relative to the rotation locus of the tip of the arm rotated by the motor. Can be slid tangentially.

Moreover, 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 one connecting member (f) or (g), there is a risk that the rotation range of the two actuating levers (b) will be restricted due to the presence of the other connecting member (g) or (f). Even if 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, and 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 a state in which the cover plate is removed and each output member is connected to two separate locking devices in an embodiment of the present invention; FIG. Front view of only the actuator. Fig. 3 is an enlarged longitudinal sectional front view taken along line X-X in Fig. 1, Fig. 4 is a longitudinal sectional front view taken along line Y-Y in Fig. 1, and Fig. 5 shows an example of a conventional actuator. It is a schematic front view shown. (1) Case (2) Lid 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 (25) (
26) Wire (27) Trunk lock device

Claims (1)

[Claims] An arm rotatably provided in a case is connected to a rotating shaft of a reversible motor via a reduction gear and an electromagnetic clutch, and a plurality of output members connected to different operated devices are connected to the arm. can slide approximately tangentially to the rotation locus of the tip of the arm, and by rotating the arm in either the forward or reverse direction, one of the tips of the arm can move from the inoperative position to the operating position. An actuator comprising a plurality of output members, characterized in that the actuator is movably provided within the case.