JPH0483074A - Actuator device for operating actuating rod to be operated - 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 (Field of Industrial Application) The present invention relates to an actuator device for actuating an operated lever, and more particularly to an actuator device for actuating, for example, an automobile door lock device by a motor.

(Prior Art) Conventionally, this type of motor actuator device has been disclosed in, for example, Japanese Patent Publication No. 58-47551 and Japanese Patent Application Laid-Open No. 60-1138.
This is known as disclosed in Japanese Patent Application Laid-open No. 56 and Japanese Patent Application Laid-Open No. 60-253680. Such conventional actuator devices include a clutch mechanism within the actuator device in order to lock and unlock the door lock device by remote control and at the same time ensure locking and unlocking operations by manual operation. The structure was such that the operating path between the door lock device and the motor was separated except when operated by the door lock device.

This conventional door lock actuator device 1 is shown in FIGS. 4 to 7, and the door lock actuator device 1 is connected to a door lock W2 via a rod 3. In detail, the output shaft 4 of the actuator device l
The free end of the ring par 5 fixed to the
As shown in the figure, one end of the rod 3 is coupled with a clamp 6, and the other end of the rod 3 is pivoted with a pin in the middle of a lever 2a, which has a lock knob 2b pivoted at its tip. The actuator unit W1 includes a casing made of a casing 7 made of synthetic resin and a cover 8 screwed together.
A mounting piece 9 is integrally formed on the outer wall of the housing. This mounting piece 9 has a mounting opening 9a formed therein, and a notch extending to the mounting opening 9a. The actuator 1 is fixed inside the door using the mounting piece 9. Further, the output shaft 4 connected to the door lock device 2 is connected to the sealing member 1 through the hole 10 formed in the casing 7.
It is protruded through 2.

On the other hand, a motor 13 is housed in the casing 7, and a small gear 14 of a speed reduction mechanism is attached to the motor shaft 13a. This small gear 14 meshes with an outer circumferential tooth portion 15a of a reduction gear 15 rotatably supported by a shaft 18, and this reduction gear 15 is accommodated in a concave portion on the lower surface and is elastic in the direction of rotation, as shown in FIG. The rotation is transmitted to a pinion gear 17 which is rotatably supported on the same shaft 18 via a spring 16 which is an energy storage means having a . That is, the spring 16 is installed in a first recess 15d defined by a bearing 15b formed in a recess on the lower surface of the reduction gear 15 and a convex portion 15c having an arcuate cross section formed on the radially outer side of the bearing 15b. Reference numeral 17 denotes a second recess 1 formed outside the convex portion 15c in the recess on the lower surface of the reduction gear 15.
5e is assembled by inserting a convex portion 17b having an arcuate cross section protruding in the axial direction, and both ends of the convex portion 15c of the reduction gear 15 and both ends of the convex portion 17b of the pinion gear 17 are fan-shaped ends of the spring 16. The load receiver of the section is in contact with the surface of the section 16a. As a result, the reduction gear 15 and the pinion gear 17 transmit rotation to the other party when rotating left and right, and rotational energy is absorbed by the spring 16 when the other party is stopped.

The outer peripheral tooth 17a of the pinion gear 17 is the clutch input gear 2.
This clutch input gear 21 meshes with the outer peripheral teeth 21d of
As shown in FIG. 9, it has a roller guide wall 21a, which is both end surfaces of a fan-shaped part formed in a recess on the upper surface, and a lever hole 21b, which is formed in an arc shape. A pair of connected rollers 22 are arranged to engage with the roller guide wall 21a. A drum 19 is rotatably arranged in a recess on the lower surface of the clutch input gear 21, and a brake spring 20 is attached to the outer periphery of the drum 19. Both ends 20a of the spring 20 abut against a stopper portion 7a formed of a protrusion integrally formed on the bottom wall of the casing 7, thereby restricting rotation of the brake spring 20 itself. Also, a lever 19 is provided on one side of the drum 19.
a is provided protrudingly, and this lever 19a is connected to the clutch input gear 2.
The clutch input gear 2 is inserted into the lever hole 21b of the clutch input gear 2.
1 protrudes into the upper surface recess. Further, the clutch output gear 24 is disposed above the clutch input gear 21 and has a transmission convex portion 24a at the lower end in the axial direction that is fitted into the recess on the upper surface of the clutch input gear 21. These clutch input gears 21. The drum 19 and the clutch output gear 24 are rotatably supported by the same clutch shaft 25. The tooth portion 24d of the clutch output gear 24 is the output sector gear 26.
The output sector gear 26 has a convex portion 26a that is formed to protrude toward the center of swing and is elastically engaged with the plate 27. This plate 27 is connected to the output shaft 4.
It is fixed by caulking.

Next, the operation will be explained. When the lock knob 2b is pulled up and the locking device 2 is in the unlocked state, the linker 5 of the door lock actuator 1 is on the unlocked side. In this state, when the driver turns the hand switch (not shown) to the lock side, the holding circuit (not shown) is activated, the motor 13 rotates for a set time (for example, 0.5 seconds), and the small gear 14 and reduction gear 15, and while rotating and compressing the spring 16, the pinion gear 17 is rotated.

This rotation of the pinion gear 17 is transmitted to the connected clutch input gear 21, thereby bringing the clutch into a connected state. That is, when the clutch manual gear 21 is rotated clockwise as shown in FIG. and try to move in the direction of rotation. However, the drum 19 disposed in the lower recess of the clutch input gear 21 is prevented from rotating by the brake spring 20 unless a load is applied, and the lever 19 installed upright on the drum 19 is inserted into the upper recess from the arc-shaped lever hole 21b. Because of the protrusion, the roller 22 that is about to move comes into contact with this lever 19a and is prevented from moving in the rotational direction of the clutch input gear 21. As a result, the roller 22 stretches the return spring 23 and is moved by the end face of the fan-shaped portion. It is pushed outward in the radial direction along a certain guide wall 21a and comes into contact with the inner circumferential wall 21c in the upper recess of the clutch input gear 21, and its movement is completely blocked (FIG. 10(b)).

As a result, the force of movement in the rotational direction of the clutch input gear 210 still exerted on the roller 22 by the guide wall 21a of the sector acts as a load on the lever 19a, which causes the drum 19 to slide against the brake spring 20. , and rotates at the same speed as the clutch input gear 21.

As the clutch input gear 210 rotates, the roller 22 pushed outward in the radial direction engages with a transmission portion 24a provided on the clutch output gear 24 (FIG. 10(C)), thereby rotating the clutch output gear 24.

This rotation of the clutch output gear 24 causes the output gear 26 to
．． The output shaft 4 is rotated via the plate 27, and the linker 5. The lever 2a is pulled down via the rod 3, and the locking device 2 is operated into the locked state shown by the phantom line. Thereafter, when the set time has elapsed and the power supply is stopped by the timer, a rotational force in the reverse rotation direction is transmitted to the motor 13 by the repulsive spring force of the spring 16. A slight reversal of the clutch input gear 21 accompanying this reverse rotation causes loosening between the fan-shaped guide wall 21a and the transmission protrusion 24a of the clutch output gear 24, as shown by the dotted line in FIG. 10(C). occurs, and the roller 22 returns to its initial position (FIG. 10(a)) due to the restoring force of the return spring 23, resulting in the clutch being disengaged. Note that the automatic operation from the locked state to the unlocked state and the manual operation from the unlocked state to the locked state are the same as those described above, so a description thereof will be omitted.

(Problem to be Solved by the Invention) However, in such a conventional actuator device for a door rotor, the reduction gear 15 and the pinion gear 17
The rotational energy storage device consisting of the spring 16 interposed in the rotational transmission path between the This results in clutch disengagement failure due to damage to the energy-N product structure.

Therefore, in order to prevent excessive compressive stress in the spring 16, we considered limiting the amount of spring compression or creating an energy storage structure using rubber instead of a spring.
In both cases, the energy storage characteristics due to rubber only as shown in curve B, and the characteristics resulting from the rules for the amount of spring compression due to the spring and rigid body shown in curve B, the amount of deflection relative to the amount of energy storage is small (
(nearly a rigid body), when the actuator device is forced to stop by the stopper during operation, the rotational inertia of the motor and other components is transmitted as an impact force to the clutch input gear 21, clutch output gear 24, and output gear 26, resulting in damage to each gear as described above. There were also problems such as impact noise generated between the gears due to impact.

An object of the present invention has been made to solve such conventional problems, and is to improve the durability of an energy storage device in a rotation transmission path between a gear rotated by a motor and a pinion gear that receives rotational force from the gear. It is an object of the present invention to provide an actuator device for actuating an operated rod, which improves performance, prevents damage to each gear during actuator operation, and prevents generation of impact noise.

(Means for Solving the Problems) The actuator device for actuating an operated rod of the present invention includes, firstly, a driving member that is rotated in conjunction with a motor, and an output that is connected to the operated rod that can also be operated manually. A driven member interlocked with a shaft, a clutch device and an energy storage device provided in a transmission path for transmitting the rotation of the driving member to the driven member, and the energy storage device is interposed in the rotation transmission path. It consists of a relatively flexible elastic member and a relatively hard elastic member, and is characterized in that when energy is stored, the flexible elastic member is first bent, and then the hard elastic member is bent.

Second, the actuator device for actuating an operated rod of the present invention includes: a driving member rotated in conjunction with a motor; a driven member interlocked with an output shaft connected to the operated rod, which can also be manually operated; a clutch device and an energy storage device provided in a transmission path for transmitting the rotation of the driving member to the driven member, the energy storage device being comprised of an elastic member interposed in the rotation transmission path, and the elastic member It is characterized by comprising an elastic part that is hard in nature and a part that first flexibly absorbs the energy when an element of the rotation transmission path comes into contact with the elastic member.

(Function) According to the actuator device for actuating the operated rod of the present invention,
The energy storage device deflects a relatively flexible elastic member or a flexible energy absorbing portion at the beginning of a storage operation, and then deflects a hard elastic member or a hard elastic portion,
Absorbs and stores rotational energy.

(Embodiments) Hereinafter, the actuator device for actuating an operated rod of the present invention will be described in more detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows an energy storage device in an actuator device for actuating an operated rod according to an embodiment of the present invention.

This energy storage device uses a reduction gear 15 and a pinion gear 17 to transmit the rotation of a motor 13 to a clutch input gear 21, as in the case of the conventional actuator device for actuating the operated rod shown in FIGS. 6 to 8. It is interposed in the rotation transmission path between the In Figure 1, reduction gear 1
5 and the pinion gear 17, the same parts as the respective elements in the conventional door rotor actuator device shown in FIGS. 6 to 8 are given the same reference numerals, and redundant explanation will be omitted.

In the energy storage device in the above-described embodiment, the spring 16 and the load receiver of the spring 16 in the recess on the lower surface of the reduction gear 15 form a small gap 15g with the part 16a in the space 15f between the parts 16a. It is configured to include rubber 30 (for example, NBR rubber, etc.) which is an arranged elastic member. In the operating process of such an energy storage device, the rotational force transmitted to the load bearing portion 16a of the squirrel ring 16 by the side end of the convex portion 15c of the reduction gear 15 bends the spring 16 by the gap 15g, and then the rubber 3
Compress with 0. As a result, the amount of deflection of the spring 16 is regulated within a predetermined range as shown by curve (C) in FIG. 3, but the deflection force of the rubber 30 prevents transmission of impact force.

FIG. 2 shows a rubber 40 which is an elastic member of an energy storage device in an actuator device for actuating an operated rod according to another embodiment of the present invention.

This rubber 40 is used in place of the rubber 30 shown in FIG. becomes unnecessary.

That is, this rubber 40 has a hole 40a formed in its center. Therefore, in the operating process of this energy storage device, when rotational force is transmitted to the end surface 40b of the rubber 40 by the side end of the convex portion 15c of the reduction gear 15, the hole 40a first contracts and its inner wall is crimped or crimped. After that, the entire rubber 40, that is, the hard portion 40c, is compressed. As a result, depending on the hardness of the rubber 40, the shape of the hole 40a, etc., as shown by curve E in FIG. This results in an energy storage device that can reliably absorb energy even for small inputs and prevent the transmission of impact force for large human forces.

In this embodiment, rubber 40 with holes 40a is used as the elastic member that stores energy, but notches may be used instead of holes. Furthermore, the rubber 40 itself, which is an elastic member, may be provided with a relatively soft portion and a relatively hard portion.

The operating lever operated by the actuator device in each of the above-mentioned embodiments is not limited to an operating lever for locking a car door, but can be used to operate various operated levers, including an operating lever for locking a door of any opening/closing part. Needless to say, it can be used.

(Effects of the Invention) As explained above, according to the actuator device for actuating the operated rod of the present invention, the energy storage device absorbs energy relatively flexibly at the beginning of its operation, and then absorbs energy relatively hard and elastically. By flexing the parts, it improves the durability of the energy storage device and effectively absorbs the impact force when the actuator device is forced to stop by the stopper during operation, preventing damage to each element and generating impact noise. can be prevented.

[Brief explanation of the drawing]

FIG. 1(a) is a sectional view showing an energy storage device in an actuator device for actuating an operated rod according to an embodiment of the present invention, FIG. 1(a) is an exploded view of the energy storage device, and FIG. A front view showing the elastic member constituting the energy storage device in the actuator device for actuating the operated rod according to the embodiment, FIG. 3 is a characteristic diagram showing the relationship between the amount of energy storage and the amount of deflection, and FIG. FIG. 5 is a front view of an example in which a rod actuating actuator device is applied to an automobile door lock, FIG. 5 is a partial front view of a link bar, FIG. 6 is a plan view showing the inside of a conventional door lock actuator device, and FIG. 7 is a cross-sectional view of the door lock actuator device taken along the line Vl-Vl in FIG. 6, and FIG. 8(a) is an energy storage device in the conventional door lock actuator device shown in FIG. 7. A cross-sectional view showing the
b) is an exploded view showing the energy storage device of Fig. 8(a), Fig. 9 is an exploded perspective view of the clutch device constituting the conventional door lock actuator device shown in Fig. 7, and Fig. 10(a). ) to (C) are configuration explanatory diagrams showing the clutch device in the order of operation, respectively. 4... Output shaft, 13... Motor, 14... Small gear, 15... Reduction gear, 16... Spring, 17...
...Pinion gear, 21...Clutch input gear, 24
...Clutch output gear, 26...Output gear, 30.
...Rubber, 40...Rubber, 40a...Hole. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (2)

[Claims] (1) A driving member that rotates in conjunction with a motor, a driven member that rotates with an output shaft connected to an operated rod that can also be operated manually, and a transmission path that transmits the rotation of the driving member to the driven member. The energy storage device includes a relatively flexible elastic member and a relatively hard elastic member interposed in the rotation transmission path, and the energy storage device includes a clutch device and an energy storage device provided in the rotation transmission path. An actuator device for actuating an operated rod, characterized in that the flexible elastic member is deflected, and then the hard elastic member is deflected. (2) A driving member that rotates in conjunction with a motor, a driven member that rotates in conjunction with an output shaft connected to an operated rod that can also be operated manually, and a transmission path that transmits the rotation of the driving member to the driven member. The energy storage device includes a clutch device and an energy storage device provided in the rotation transmission path, and the energy storage device includes an elastic member interposed in the rotation transmission path, and the elastic member is connected to a relatively hard elastic portion and the elastic member to transfer the rotation. An actuator device for actuating an operated rod, comprising a portion that first flexibly absorbs energy when an element of a transmission path comes into contact with it.