JPH063111Y2 - Doorlock Actuator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a door lock actuator used for remotely controlling a door lock of an automobile.

(Prior Art) Conventionally, as a door lock actuator as described above, for example, there is one shown in FIG.

That is, as shown in FIG. 3, in the door lock actuator 101, a motor 105 fixed by a bracket 104, an intermediate gear 106, an intermediate pinion 107, and a spring 108 are coaxial (in a casing 103 closed by a cover 102). The reduction gear mechanism 110 arranged on the gear shaft 109), the final output shaft 111 having one end 111a protruding from the case 103 to the outside, and the reduction gear mechanism 11 fixed to the final output shaft 111 as described below.
The sector gear 112 connected to 0 is provided.
Then, the door lock actuator 101 transmits the output of the motor 105 to the sector gear 112 via the speed reduction mechanism 110 connected to the pinion 113 mounted on the output shaft 105a, and the sector gear 112 thereby.
Of the swing arm 1 is transmitted to the swing arm 114 fixed by caulking to the one end portion 111a of the final output shaft 111 through the final output shaft 111.
A door lock portion (not shown) is remotely controlled by a rod 116 connected to 14 by a virtual line.
At this time, the sector gear 112 is connected to the final output shaft 1
11 is fixed to the final output shaft 111 by engaging a pin 115 shown by an imaginary line penetrating orthogonally to 11 with a pin engaging portion (not shown) formed on the sector gear 112. 111 cases 10
I also tried to prevent falling out of 3.

(Problems to be Solved by the Invention) However, in the conventional door lock actuator 101 as described above, when the sector gear 112 is fixed to the final output shaft 111, it penetrates perpendicularly to the final output shaft 111. Since the pin 115 is locked by the pin locking portion of the sector gear 112,
As a result, a large number of parts and a large number of assembling steps are required. Therefore, a swaging process is required to fix the swing arm 114 to the one end portion 111a of the final output shaft 111, and the productivity is very high. It had the problem of being bad.

(Object of the Invention) The present invention has been made in view of the above problems, and provides a door lock actuator that can reduce the number of parts and the number of working steps to improve productivity. The purpose is to do.

[Structure of the Invention] (Means for Solving Problems) This invention has a sector gear and an output shaft for supporting the sector gear inside an actuator case closed by an actuator cover, and at the outside of the actuator case. In a door lock actuator having a swing arm, a sector gear is integrally formed on the output shaft, and an end portion of the output shaft having an arm detent is projected to the outside of the actuator case so as to be non-rotatably connected to the swing arm. However, a plate for restricting the falling of the swing arm is provided outside the actuator case. In one embodiment, the plate has a size that covers a swing angle range of the swing arm. It is characterized by that.

(Example) Hereinafter, this invention is demonstrated based on drawing.

1 and 2 show a door lock actuator according to an embodiment of the present invention.

That is, as shown in FIG. 1, the door lock actuator 1 includes a motor 4 capable of rotating in the forward and reverse directions, a speed reduction mechanism 5, an output shaft, and an output shaft in this case, inside an actuator case 3 closed by an actuator cover 2. An output shaft 6 with a sector gear having a final output shaft portion 6a and a sector gear portion 6b in which an output shaft and a sector gear are integrally formed;
And the swing arm 8 is arranged outside the actuator case 3.

The motor 4 is fixed by a bracket 9 attached to the actuator case 3 with a screw (not shown), and a pinion 10 is attached to an output shaft 4a thereof.

The reduction mechanism 5 includes an intermediate gear 5a connected to the pinion 10 mounted on the output shaft 4a of the motor 4, and a lower side of the intermediate gear 5a on the support shaft 5b of the intermediate gear 5a (right side in FIG. 1). ), A split pin-shaped spring 5c and an intermediate pinion 5e integrally formed with a collar-shaped portion 5d. The intermediate gear 5a and the intermediate pinion 5e are provided with protrusions 5f and 5g formed on the surfaces facing each other (the lower surface of the intermediate gear 5a and the upper surface of the flange portion 5d of the intermediate pinion 5e) of the split pin spring 5c. Connection is made by engaging through an end (not shown), and after the operation of the motor 4 is stopped, the intermediate gear 5a is returned to the neutral position by the elastic force of the spring 5c.

The sector gear output shaft 6 in which the final output shaft portion 6a and the sector gear portion 6b are integrally formed is made of a hard synthetic resin,
The output shaft 6 with sector gear has one end (left side in FIG. 1) of the final output shaft part 6a fitted and supported by a bearing part 2a formed in the actuator cover 2, and the other end (see FIG. 1). The end portion 6d (on the right side) penetrates through a bearing hole 3a provided in the actuator case 3 and is projected outward, so that the sector gear portion 6b meshes with the intermediate pinion 5e of the speed reduction mechanism 5. In this case, the other end portion 6d of the final output shaft portion 6a that protrudes from the actuator case 3 to the outside, as shown in FIG. 2, is a flat portion 6e, 6e that functions as arm rotation stoppers that are parallel to each other.
And the other end portion 6d of the final output shaft portion 6a having the flat surface portions 6e, 6e, and the other end portion 6d which functions as a detent receiving portion which is formed on the one end 8a side of the swing arm 8 and which are parallel to each other. Connection hole 8b having straight portions 8e, 8e
By fitting and, the swing arm 8 is non-rotatably connected to the final output shaft 6a.

The swing arm 8 connected to the other end 6d of the final output shaft portion 6a in this manner is used for the motor 4 that is transmitted via the sector gear portion 6b of the output shaft 6 with sector gear and the final output shaft portion 6a. The rod 11 shown in phantom line in FIG. 1 which swings by the output and is connected to the rod hole 8d provided on the other end 8c side of the swing arm 8 is moved in the axial direction, and is moved through a lock arm (not shown). The outside door lock body is operated remotely.

Further, a plate 12 is attached by screws 13 and 13 on the extension of the other end 6d of the final output shaft 6a protruding outside the actuator case 3, whereby the swing arm 8 is The final output shaft portion 6a is prevented from falling off from the other end portion 6d. At this time, the plate 12 has a size capable of covering the range of the swing angle of the swing arm 8, that is, the range of rotation of the rod hole 8d provided in the swing arm 8.

Further, the door lock actuator 1 detects a stroke end position of the lock arm and stops the rotation of the motor 4, and a stroke end switch (not shown),
It has a damper (not shown) that absorbs impact at the end of the swing range of the sector gear portion 6b.

Reference numeral 14 in FIG. 1 is a plate spacer,
Reference numeral 15 is a waterproof ring.

Therefore, when the door lock actuator 1 is assembled, the sector gear-equipped output shaft 6 is mounted at the other end 6d of the final output shaft portion 6a of the sector gear-equipped output shaft 6.
Is inserted into the bearing hole 3a of the actuator case 3, and one end 6c is fitted and supported by the bearing 2a of the actuator cover 2 to complete the process. And rod 1
To attach the swing arm 8 connected to the first output shaft portion 6a to the final output shaft portion 6a, the connecting hole 8b of the swing arm 8 is fitted to the other end portion 6d of the final output shaft portion 6a protruding from the actuator case 2. , Plate 12 in that state
Is attached to the actuator case 3 to complete the process without requiring a caulking step.

As described above, in this embodiment, the plate 12 for preventing the swing arm 8 from slipping off the final output shaft portion 6a is sized to cover the swing angle range of the swing arm 8. It is possible to prevent the rod 11 from coming off from the rod hole 8d, and it is also difficult to lock the swing arm 8 with a wire or the like so that the swing arm 8 can be prevented from being stolen. There is an effect.

Further, in this embodiment, the final output shaft portion 6a and the sector gear portion 6b are integrally formed by using a hard synthetic resin.
The material of the output shaft 6 with sector gears is not limited to resin, and metal such as iron or aluminum can be used.

Further, in the above embodiment, when the connecting hole 8b of the swing arm 8 is fitted and connected to the other end 6d of the final output shaft 6a, the other end 6d of the final output shaft 6a is connected.
In addition to forming the flat portions 6e, 6e that function as arm detents, and providing the straight portions 8e, 8e that function as detent receivers in the connecting hole 8b of the swing arm 8, the swing arm 8 is provided with a final output shaft. Although it is configured to be non-rotatably connected to the portion 6a, the present invention is not limited to this configuration, and as another configuration, for example, the other end 6d of the final output shaft portion 6a and the connection hole 8b of the swing arm 8 are provided. It is also possible to form splines that mesh with each other.

[Effects of the Invention] As described above, according to the present invention, the sector gear and the output shaft supporting the sector gear are provided inside the actuator case closed by the actuator cover, and are provided outside the actuator case. In a door lock actuator having a swing arm, a sector gear is integrally formed on the output shaft, and an end portion of the output shaft having an arm detent is projected to the outside of the actuator case to non-rotatably connect to the swing arm. Since the plate for restricting the falling of the swing arm is provided outside the actuator case, the number of parts can be reduced, and the number of work steps in manufacturing the door lock actuator can be reduced. It is possible to greatly improve the It can bring about an extremely excellent effect of becoming Noh.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a door lock actuator according to an embodiment of the present invention, and FIG. 2 is an explanatory view of a plate mounting portion of the door lock actuator in FIG. FIG. 8 is a vertical sectional view showing a conventional door lock actuator. DESCRIPTION OF SYMBOLS 1 ... Door lock actuator, 2 ... Actuator cover, 3 ... Actuator case, 6 ... Sector gear output shaft (output shaft), 6b ... Sector gear part (sector gear), 6e ... Flat part (arm rotation stop), 8 ... Swing arm, 12 ... Plate.

Claims (2)

[Scope of utility model registration request] 1. A door lock actuator having a sector gear and an output shaft supporting the sector gear inside an actuator case closed by an actuator cover, and a swing arm provided outside the actuator case, the output shaft comprising: A sector gear is integrally formed on the output shaft, and an end portion of the output shaft having an arm detent is projected to the outside of the actuator case to non-rotatably connect to the swing arm, and the swing arm is pulled out to the outside of the actuator case. A door lock actuator characterized in that a plate for regulating the door lock is provided. 2. The door lock actuator according to claim 1, wherein the plate is sized to cover a swing angle range of the swing arm.