JPS61261585A - Door lock operation apparatus for car - 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 Application of the Invention] The present invention relates to an automobile door lock operation device that uses a motor to lock or unlock a door lock body.

[Background of the invention]

Conventional car door lock operating devices of this type include:
For example, there is one disclosed in Japanese Utility Model Publication No. 54-30317. As shown in FIGS. 9 to 11, a pinion 3 is attached to the rotating shaft 2 of the motor 1, an intermediate reduction gear 4 is meshed with this pinion 3, and the intermediate reduction gear 4
An intermediate pinion 5 is integrally formed with the intermediate pinion 5, and a fan-shaped swing gear 6 is meshed with the intermediate pinion 5. Swing gear 6
is connected to the operated lever 9 of the door lock body 8 via the connecting lock 7. Specifically, the lower end of a connecting rod 7 is pivotally connected to a connecting pin 10 provided at the center of the rocking gear 6, and a long hole 11 formed at the top of this connecting rod 7 is provided at the tip of the operated lever 9. A connecting pin 12 is loosely fitted. Further, the elongated hole 11 of the connecting rod 7 is set to a length corresponding to the stroke distance 1Ii1 (fL) between the locked and unlocked positions of the operated lever 9, and the swing gear 6 is set to have a length corresponding to the stroke distance 1Ii1 (fL) between the locked and unlocked positions of the operated lever 9. is set to have a stroke distance larger than the above-mentioned stroke distance (seen). Further, the rocking gear 6 can be returned to the neutral position via a coil spring 14 attached to the connecting rod 7. In addition, 15 in FIG. 9 is a lock knob for manual operation provided on the operated lever 9. Therefore, during electric operation, the connecting rod 7 is moved upwardly or downwardly through the swinging of the swinging gear 6 by the motor 1, and the elongated hole 11 of this connecting rod 7 is moved to the position A or B in FIG. By moving the operated lever 9 to the unlocking or locking position, the door lock body 8 can be unlocked or locked.

However, in such a conventional door lock operating device, an elongated hole 11 having a length corresponding to the stroke distance (cross) of the operated lever 9 is formed in the connecting rod 7, and the elongated hole 11 is formed in the connecting rod 7. While loosely fitting the lever 9, the operating lever 9 is operated by operating the connecting rod 7 with the swing gear 6 having a stroke distance larger than the above stroke distance # (sentence) on both sides fla, 8b of the neutral position. Therefore, the connecting portion between the operated lever 9 and the connecting rod 7 requires a stroke distance approximately twice the stroke distance #i) of the operated lever 9, which requires a large amount of installation space. Fake V! Made by h tooth market 601 17 In order to make the bar 9 shallower, a stroke distance larger than the above-mentioned stroke distance is required on both sides of the neutral position, and the oscillating gear 6 itself becomes large. It requires a lot of storage space for the coil spring 14 in order to return it to the original state, making it difficult to downsize the entire coil spring 14.
will always apply rotational load to motor 1, and motor 1 will
The problem was that the torque loss was large.

[Purpose of the invention]

The present invention has been developed by focusing on these conventional problems.The reduction gear and the starting gear, through which the motor rotation is reduced and transmitted, are coaxially supported, and the cam is activated by the rotation of these gears. A door lock operation device for an automobile that can solve the above problems by rotating a shaft and operating the door lock body through a rod connected to the camshaft rotation. The purpose is to provide

[Embodiments of the invention]

The present invention will be explained in detail below based on the embodiments shown in FIGS. 1 to 8.

Reference numeral 20 is a case, and inside this case 20 is a motor 2.
1 is included. 22 is the rotating shaft of the motor 21, 23
is a pinion attached to the rotation shaft 22, and an intermediate reduction gear 25 fixed to the one-rotation shaft 24 is meshed with this pinion 23. 26 and 40 are the rotating shaft 24
An intermediate pinion and a starting pinion are integrally formed with the intermediate pinion 26 and the starting gear 41, respectively. As shown in FIG. 1, this gear 27 has a toothless portion 43 in which two teeth are missing on the peripheral edge,
43°, and as shown in FIG. 3, the gear 41 is also provided with two toothless parts 45 and 45' on the periphery at opposite positions with respect to the camshaft 28. . The camshaft 28 is rotatably supported by the case 20 and the cover 35, and the reduction gear 27 and the starting gear 41 are rotatably supported by the shaft 28, and a cam is provided at the center of the shaft 28. 28a is integrally provided. 27a is 2 on the side of the reduction gear 27.
The protrusions 27a are individual protrusions that can come into contact with the cam 28a of the shaft 28, and the protrusions 27a
The tip of the gear 41 penetrates into the elongated hole 46 provided in the gear 41, thereby causing the cam 2 to rotate in the same direction as the rotation direction of the reduction gear 27.
8a (therefore, the shaft 28) and the gear 41 can be rotated. 29 is an arm fixed to the tip of a shaft 28 protruding outward from the case 20,
A lower end 30' of a rod 30 is pivotally attached to this arm 29. The upper end of the rod 30 is connected (pivotally attached) to approximately the middle of an operated lever 32 extending from the door lock body 31. The rod 33 is supported by the door 34 so as to be movable in the vertical direction. This is a lock knob for manual operation, and the lower end of this lock knob 33 is connected to the tip of an operated lever 32. 35 is a cover, 36 is a mounting screw that fixes the force/(- to the case 20, and 37 is a mounting bracket for the motor 21. 55 is a spring that constantly presses the gear 27.

The structure of this embodiment has been described above, and its operation will be described first. First, the case where the door lock body 31 is electrically locked from the unlocked state shown in FIGS. 1 to 4 will be described.

When the door lock body 31 is unlocked, it is in the state shown in FIGS. 1 and 4, and in this state, the pinion 26 is in the toothless portion 43 and does not mesh with the gear 27. Also, the pinion 40 meshes with the gear 41.

In this state, when the motor 21 is driven to rotate the pinion 23 provided on the rotating shaft 22 in the arrow direction a, that is, in the counterclockwise direction in FIG. Rotate clockwise as shown by the arrow. At this time, the starting pinion 40 on the same shaft 24 also rotates clockwise, and the reduction gear 41 meshing with this starting pinion 40 rotates in the counterclockwise direction C. As a result, the elongated hole 46 of the reduction gear 41 moves and pushes the protrusion 27a, thereby rotating the gear 27 and the shaft 28. As a result, the gear 27 meshes with the pinion 26 and continues to rotate due to its rotation, and the shaft 28 also rotates together with the gear 27. On the other hand, the gear 41 temporarily stops when its toothless portion 45 reaches the pinion 40 (FIG. 5).

On the other hand, since the gear 27 meshes with the pinion 26 as shown in FIG. 5, it continues to rotate due to the rotation of the pinion 26, and the protrusion 2? a again collides with the gear 41 and rotates it counterclockwise, causing the shaft 28 to rotate in the same direction. As a result, the gear 41 meshes with the pinion 40 again as shown in FIG.
It rotates by rotation of the shaft 24. As the gear 27 rotates, the toothless portion 43' reaches the pinion 26, the gear 27 and the pinion 26 are disengaged, and the gear 27 stops as shown in FIG. At the same time, a control circuit (not shown) that controls the rotation of the motor 21 stops energizing the motor 21, and the motor 21 stops driving. However, the rotor rotates due to its inertia, and the gear 41 rotates to the position shown by the dotted line in FIG. 8 and then stops. As a result, gear 41
The overall condition is the same as that shown in the fourth figure, except that the positions of the toothless portions 45 and 45° in the gear 27 are reversed, and the positions of the toothless portions 43 and 43° in the gear 27 are reversed.

As the reduction gear 27 rotates by 180 degrees, the cam 28
Since a also rotates at the same time, the arm 29 provided on this shaft 28 rotates, and the lower end of the lever 30 that is engaged with this arm 29 is pulled down while making an arcuate movement. By pulling down this lever 30, the operated lever 3
2 and the lock knob 33 are pulled down, and the door lock body 31 is locked. Note that 50 and 51 shown in FIGS. 1 and 2 are contacts constituting a control circuit for the motor 21 that stops when the reduction gear 27 rotates 180"; the contact 50 is connected to the gear 27, and the contact 51 is connected to the case. 2
It is fixed at 0.

When unlocking the lock electrically from the locked state described above, move the reduction gear 27.41 further counterclockwise 180
If the motor 21 is rotated in the arrow direction a so that the motor 21 rotates by 41 degrees, the shaft 28 will rotate as the two gears 27 and 41 rotate, and the operated lever 32 will be pushed and lifted.
The operated lever 32 connected to the upper end of the door is also pushed up, and the door lock body 31 is unlocked as shown in FIG.

The above is a case of electrically locking and unlocking, but a case of manual locking and unlocking will be described below.

First, when manually locking the lock, as shown in FIG.
0 is pushed down, and as a result, the shaft 28 rotates counterclockwise from the position shown in the fourth figure, and the door lock body 3
1 operates to achieve the desired locking. At this time, since only the shaft 28 rotates and the gears 27.41 do not rotate at all, the movement of the levers 30.32 is not transmitted to the motor 21, and the motor 21 is not damaged.

In addition, when manually unlocking from this locked state, by pulling up the lock knob 33, the lever 30 and the operated lever 32 are pulled up, the door lock body 31 is pulled up, and the door lock body 31 is unlocked. It is something. At this time, the shaft 28 rotates and the cam 28a is also pulled up, returning to the state shown in FIG. 4, and preparations are made for the next electric locking operation.

In addition, by changing the gear ratio between the gear 27 and the gear 41 and appropriately changing the shape of the elongated hole 46, it is possible to eliminate the toothless portions 45 and 45° of the gear 41, and also to improve its function. It goes without saying that it does not necessarily have to be the same as the above embodiment as long as it is the same.

[Summary of the invention]

As described above, the present invention provides toothless parts 43, 4 with missing teeth.
3', and a starting gear 41 that rotates integrally with this gear 27 with a rotational play angle.
These two gears 27 are rotatably and coaxially supported.
．． 41, a pinion 26.40 rotated by the rotation of the motor 21 and pivotally supported by the frame 20 is engaged with the pinion 26. 26 so that the two do not mesh, and the rotating shaft 28 on which both the gears 27 and 41 are pivoted engages with the gear 27 with a rotational play angle so that they rotate together, The rotating shaft 28
The proximal end of an arm 29 is fixed to the protruding end from the frame 20, and the tip of the arm 29 and the operated lever 32 of the door lock body 31 are connected by a rod 30, and the door lock body 31 is electrically connected. This is an automobile door lock operating device characterized in that a manual lock knob 33 is attached to the operated door 8-32 so that it can be manually locked and unlocked.

〔Effect of the invention〕

Therefore, according to this door lock operating device, it is not necessary to incorporate the fan-shaped swing gear or spring described in the conventional structure, so it is easy to assemble, and the position for unlocking during assembly is easy. There is an effect that can be set to . Furthermore, according to the present invention, since there is no built-in spring that acts elastically at all times, the rotational load applied to the motor and the operating load during manual operation can be significantly reduced, and the operability can also be improved. be.

Furthermore, in the present invention, the electric motor drive for locking and unlocking operations is always rotated in one direction, so electrical control is easier than with conventional mechanisms that rotate forward and backward. Moreover, there are effects such as improved durability.

[Brief explanation of the drawing]

1 to 8 show an embodiment of the door arrow two-hand operating device according to the present invention, FIG. 1 is a front view showing its internal structure, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2, Figs. 4 to 7 are explanatory diagrams of the respective operations during automatic drive, Fig. 8 is an explanatory diagram during manual operation, and Fig. 9 is A sectional view of the main parts of a conventional door lock operating device. Fig. 10 is a sectional view taken along the line X-X in Fig. 9.
FIG. 11 is an enlarged explanatory view of the main parts same as above. 20... Case 21... Motor 22...
Rotating shaft 23... Pinion 24... Rotating shaft
25... Intermediate reduction gear 26... Intermediate pinion 27... Final reduction gear 27a... Protrusion
28...Cam shaft 28a...Cam 29...
・Arm 30... Rod 31... Door lock 32... Operated lever 33... Lock knob 34
... Door 35 ... Cover 36 ... Mounting screw 37 ... Bracket 40 ... Pinion 41 ... Gear 43.43° ... Missing tooth part 45
, 45°... Toothless part 46... Long hole 55.
...Spring Figure 2 Figure 2 Figure 5゜ Figure 7 Figure 8 Figure 10

Claims (1)

[Claims] 1. A gear (43, 43') having missing teeth (43, 43')
27), and a starting gear (41) which rotates integrally with this gear (27) with a rotational play angle, are rotatably and coaxially supported on the frame (20), and these gears (27,
41), pinions (26, 4) rotated by the rotation of the motor (21) and pivotally supported on the frame (20).
0), and when the motor (21) is not energized, the toothless portion (43, 43') of the gear (27) faces the pinion (26) so that the two do not mesh. and a rotating shaft (2) on which both the gears (27, 41) are pivotally supported.
8) is engaged with the gear (27) at a rotational play angle so that they rotate together, and the base end of the arm (29) is fixed to the end of the rotating shaft (28) protruding from the frame (20). Then, the tip of the arm (29) and the door lock body (
31) is connected to the operated lever (32) by a rod (30), and the door lock body (31) is electrically connected to the operated lever (32).
A door lock operating device for an automobile, characterized in that a manual lock knob (33) is attached to the operated lever (32) so that locking and unlocking can be performed manually. 2 Gears with missing teeth (43, 43')
27) and a starting gear (41) which rotates integrally with this gear (27) with a rotational play angle and has missing teeth (45, 45') and is rotatably and coaxially attached to the frame (20). A pinion (26, 40) rotated by the rotation of the motor (21) and pivotally supported by the frame (20) is meshed with these gears (27, 41). When the gear (21) is de-energized, the gear (2
The toothless portions (43, 43') of 7) are connected to the pinion (26).
In addition to opposing the two to prevent them from interlocking,
The starting gear (42) is configured to mesh with the pinion (46), and the rotating shaft (28) on which both the gears (27, 41) are pivoted has a rotational play angle with the gears (27). the rotating shaft (
An arm (28) is attached to the end protruding from the frame (20).
The proximal end of the arm (29) is fixed, and the tip of the arm (29) and the operated lever (32) of the door lock body (31) are connected by a rod (30).
1.) A door lock operating device for an automobile, characterized in that the door lock operating device is electrically locked and unlocked manually by attaching a manual lock knob (33) to the operated lever (32).