JP2559086Y2 - Door lock actuator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock actuator used to remotely control a door lock device of a motor vehicle, and more particularly to a door lock device which is inserted between a door panel and a door glass. The present invention relates to a door lock actuator provided with a prying prevention cover for preventing the apparatus from being prying.

[0002]

2. Description of the Related Art Conventionally, as a door lock actuator as described above, for example, a case closed by a cover is provided. And a door lock actuator for the left door (or for the right door) by providing a prying prevention cover separate from the case above the swing arm, and a swing arm outside the cover. In addition to this, there has been a door lock actuator provided for the right door (or for the left door) by providing a prying prevention cover separate from the cover above the swing arm.

[0003] In addition to these door lock actuators, there is also a configuration in which a prying prevention cover is integrally provided on a case or a cover.

[0004]

However, in the above-described conventional door lock actuator, in the case of a door lock actuator in which a cover for preventing squeezing is provided separately from a case or a cover, a door lock actuator for a left door and a right door are used. Door lock actuators require a dedicated case and cover, respectively, because the swing arm is provided at different positions, and accordingly, the prying prevention covers also need to be dedicated. Therefore, it is necessary to manufacture two kinds of prying prevention covers used for the door lock actuator for the left door and the door lock actuator for the right door. As a result, the manufacturing cost of the parts increases and the parts management is increased. Is complicated.

[0005] Further, in the case of a door lock actuator in which a cover for preventing prying is integrally provided on a case or a cover,
The door lock actuator for the left door and the door lock actuator for the right door have the same problems as described above because they require a special case with cover and a cover with cover, respectively. Has been a conventional problem.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and is capable of reducing the manufacturing cost of components and facilitating component management. It is intended to provide.

[0007]

SUMMARY OF THE INVENTION A door lock actuator according to the present invention includes a case attached to a door, a cover for closing a side opening of the case, and a forward / reverse rotatable motor housed inside the case. A swing arm that is provided outside one of the facing sides of the case and the cover and swings by a rotation output of the motor; and a prying prevention cover that covers an upper part of the swing arm. In the door lock actuator, a cover-side locking portion is provided on the prying prevention cover, and the cover-side locking portion is locked to position the prying prevention cover body above the swing arm. A locking portion provided on at least one of the case and the cover. The structure of the alloc actuator has a means for solving the conventional problems described above.

[0008]

Since the door lock actuator according to the present invention has the above-described configuration, the cover-side locking portion of the prying-prevention cover is provided on at least one of the case and the cover from the side where the swing arm is provided. When the swing arm is locked to the cover mounting locking portion provided in the case, the swing arm is provided outside the case side and the swing arm is provided outside the cover side. Thus, the prying prevention cover main body is located above the swing arm, so that a key opening operation of the swing arm by a wire or the like inserted between the door panel and the door glass can be prevented.

That is, since the cover for preventing prying is a single component provided in both the door lock actuator for the left door and the door lock actuator for the right door, the manufacturing cost of the components can be reduced and the components can be reduced. Management will be facilitated.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

FIGS. 1 to 6 show an embodiment of a door lock actuator according to the present invention.

As shown in FIG. 1, a door lock actuator 1 includes a case 3 closed by a cover 2, a motor 4 rotatable in normal and reverse directions, a speed reduction mechanism 10 for stopping the rotation of the motor 4, and a speed reduction mechanism. An output shaft 20 for transmitting the rotation of the motor 4 pushed by the mechanism 10 to the outside is provided. A swing arm 30 and
A prying prevention cover 42 that covers the swing arm 30
It has. As shown in FIG. 5, the case 3 is provided with a hook 3a which can be attached to each of the lock brackets B provided on the left and right doors of the vehicle door.

The motor 4 is fitted to a motor mounting portion 3b provided on the case 3, and a worm 5 is mounted on the motor shaft 4a.

The speed reducing mechanism 10 includes a worm 5 and a worm wheel 11 that meshes with the worm 5.
And a pinion 12 linked to the worm wheel 11
It has. Worm wheel 11 and pinion 1
2 is a gear shaft 1 installed between the cover 2 and the case 3
3 and the pinion 12 has its collar 1
When the wheel-side engaging portion 11b provided on the upper surface of FIG. 6 of the worm wheel 11 is engaged with the pinion-side engaging portion 12b projecting from the outer periphery of the worm wheel 2a, the worm wheel 11 rotates together with the worm wheel 11.

The output shaft 20 integrally has a sector gear portion 21 which meshes with the pinion 12 of the speed reduction mechanism 10, and a shaft support hole 2 c provided with both ends 20 a and 20 a opposed to the cover 2 and the case 3, respectively. , 3c so as to be rotatable, so that the pinion 12 rotates in accordance with the operation of the pinion 12. In this case, both ends 20a, 20a of the output shaft 20
c, 3c, and protrudes to the outside. These ends 20a, 20a are provided with annular grooves 20b, respectively.

The sector gear portion 21 has a pin 21a at the base end thereof, which is indicated by an imaginary line extending downward in FIG. 6, through the pin 21a.
6 is driven by the contact holder 22 provided at the bottom of FIG. The contact holder 22 has a cylindrical shape with a collar, and is fitted through an insulating cylinder 23 to an annular wall 3 e formed concentrically with the gear shaft 13 on the bottom surface of the case 3, and a lower surface of the collar 22 a. Is mounted with a contactor 24 having a series of arc-shaped contact pieces 24a, 24b. The contact holder 22 has a notch 22b provided in the flange 22a.
When the pin 21a of the sector gear portion 21 is engaged with the output shaft 20, the output shaft 20 rotates. That is, by the rotation of the contact holder 22, the contactor 24 is moved on the three terminals 25a to 25c arranged on the bottom surface of the case 3 and along the annular wall 3e, and the contactors 24 are adjacent to the terminals 25a to 25c.
The motor 4 is rotated or stopped by appropriately contacting and separating from the motor 25c.

The insulating tube 23 has an insulating piece 23a inserted between the contact piece 24a inside the contactor 24 and the terminals 25a to 25c at a part around the lower end of FIG. The insulating cylinder 23 is engaged with the projection 23b shown by a virtual line in FIG. 6 provided at a position substantially opposite to the insulating piece 23a and the oblong hole 22c provided in the flange 22a of the contact holder 22. It is designed to rotate in a range narrower than the rotation range. That is, chattering is generated by making the moving range of the insulating piece 23a smaller than the moving range of the contact piece 24a of the contactor 24 and shifting the timing of contact and separation of the two contact pieces 24a and 24b with the terminals 25a to 25c. Try to prevent.

The swing arm 30 has a boss 3
0c has a mounting recess 30a that fits with the end 20a of the output shaft 20. An annular projection 30b is provided near the bottom surface (the upper surface in FIG. 6) of the mounting concave portion 30a.
By fitting the annular projection 30b into the annular groove 20b of the end portion 20a while fitting to the end portion 20a of the "0", the output shaft 20 is detachably mounted. In this case, the mounting recess 30 of the swing arm 30
The center of a is provided with a cylindrical portion 30d having a tapered shape. The cylindrical portion 30d is brought into pressure contact with a centering hole 20d provided on the axis of the end portion 20a, whereby the swing arm 30d is provided. Are prevented from idling with respect to the output shaft 20.

On the other hand, on the tip side of the swing arm 30,
A rod connecting portion 30e for connecting a rod (not shown) connected to the door lock portion is provided.

In this embodiment, the swing arm 30
Is attached to the end 20a on the right side of FIG. 3 (upper side in FIG. 6) of the output shaft 20, and the boss portion of the swing arm 30 is attached to the end 20a on the left side (lower side in FIG. 6) of the output shaft 20. The cap 31 having the same shape as the cap 30c, that is, the mounting recess 3
A cap 31 having an annular protrusion 1a, an annular protrusion 31b and a cylindrical portion 31d is attached to cover the end 20a on the left side in FIG.

The door lock actuator 1
A coil spring 41 provided inside the annular wall 3e, a case-side spring hook 3f formed on the bottom of the case 3 and inside the annular wall 3e, and a lower surface of the worm wheel 11 in FIG. A return mechanism including a wheel-side hook (not shown) is provided. The return mechanism hooks one hook-shaped end 41a of the coil spring 41 on the case-side spring hook 3f and hooks the other hook-shaped end (not shown) on the wheel-side hook. Even if the worm wheel 11 rotates in either the clockwise direction or the counterclockwise direction in FIG. 5 due to the output of the motor 4, when the motor 4 stops, the worm wheel 11 It returns to the original position by the elastic force.

Further, the door lock actuator 1
As shown in FIGS. 1 to 3, a prying prevention cover 42 that covers the upper part of the swing arm 30 is provided. As shown in detail in FIG. 4, the prying prevention cover 42 includes a cover body 42a having both ends curved downward, a cover support portion 42b provided at an edge of the cover body 42a, and a cover body 42a. 4 extending from the support portion 42b to the opposite side (the upper left side in the figure) of the cover main body 42a, and locking claws (cover-side locking portions) 4 on both ends.
2c, 42c.
The prying-prevention cover 42 is inserted from one side (right side in FIG. 3) into a mounting groove (cover-mounting locking portion) 3h provided through the thick portion 3g at the upper end of the case 3. Is inserted into the case 3 by locking the locking claws 42c, 42c on the side surface on the other side (left side in FIG. 3) of the thick portion 3g. In this state, the cover body 42a Can cover the upper part of the swing arm 30 and prevent the unlocking operation by the wire inserted from between the door panel and the door glass. in this case,
The upper side of the cover support portion 42b of the prying prevention cover 42 is bent to the opposite side to the cover body 42a, and the thick portion 3g of the case 3 is arranged substantially at the center in the left-right direction in FIG. As shown by phantom lines in FIGS. 1 to 3, when the swing arm 30 is attached to the opposite end 20 </ b> A of the output shaft 20, the prying prevention cover 42 is attached to the opposite side, and The upper part of the swing arm 30 mounted on the cover body 42 can be covered with a cover body 42a.

Therefore, in the door lock actuator 1 described above, the prying prevention cover 42 can be attached to either the cover 2 side or the case 3 side, and in any case, the swing arm 30 Since the swing arm 30 can be covered by positioning the cover body 42a upward, the prying prevention cover 42 can be provided with two kinds of parts for attaching the cover and the case, that is, the door lock for the left door. The actuator and the door lock actuator for the right door can be made into a single part without having to be a dedicated part for each, so that the number of parts can be reduced and the parts management can be facilitated.

Further, the door lock actuator 1 according to this embodiment can be attached to any of the lock brackets B provided on each of the left door and the right door of the vehicle. Since it can be attached to both ends 20a, 20a, parts such as the cover 2 and the case 3 are also united, and combined with the unification of the prying prevention cover 42, the manufacturing cost of the parts is further increased. As it goes down, it is easier to manage.

The above door lock actuator 1 is
First, in a state where the door lock is in a lock-off state (a state shown by a solid line in FIG. 1), when an external power supply is supplied to the motor 4 and the motor 4 is rotated, the rotation is transmitted to the worm wheel 11 via the worm 5. Then, the worm wheel 11 rotates clockwise in FIG.

Next, the wheel side locking portion 11b of the worm wheel 11 is connected to the pinion side locking portion 12 of the pinion 12.
b, the pinion 12 moves the worm wheel 11
5 starts to rotate in the clockwise direction in FIG. 5, and accordingly, the output shaft 2 in which the sector gear portion 21 meshes with the pinion 12.
0 rotates in the counterclockwise direction in FIG.
The swing arm 30 mounted on the arm rotates counterclockwise in FIG.

When the output shaft 20 rotates, the contact holder 22 rotates clockwise, and the contactor 24 separates from the terminal 25a and contacts the terminals 25b, 25c. Supply cut off,
The motor 4 stops. At this time, the swing arm 30 is in a state shown by a virtual line in FIG. 1, and the door lock is in a lock-on state via a rod (not shown).

During this time, the insulating cylinder 2 together with the contact holder 22
3 rotates in a range narrower than the contact holder 22, so that the insulating piece 23a of the insulating tube 23 is
4, the contact pieces 24a and 24b of the contactor 24 contact / separate from the terminals 25a to 25c with a slight shift, so that chattering hardly occurs.

When the wheel spring engaging portion (not shown) of the return mechanism moves away from the case side spring engaging portion 3f, an elastic force is generated in the coil spring 41. Will return to the original position.

Then, when power is supplied from this state and the motor 4 is rotated in the direction opposite to the above rotation, the worm wheel 11 and the pinion 12 rotate in the opposite direction to that described above, and the output shaft 20 is rotated. And the swing arm 30 rotates in the opposite direction, and the swing arm 30
, And the door lock is turned off.

In this embodiment, since the cap 31 is attached to the end 20a of the output shaft 20 to which the swing arm 30 is not attached, the output shaft 20 is inserted through the shaft support hole 3c.
Water and dust can be prevented from entering the inside of the case 3.

In this embodiment, the sector gear 21 is provided integrally with the output shaft 20. However, the present invention is not limited to this. The sector gear 21 may be provided separately from the output shaft 20. It is possible. Further, the detailed configuration of the door lock actuator according to the present invention is not limited to the above-described embodiment.

[0033]

As described above, according to the door lock actuator according to the present invention, the case attached to the door, the cover for closing the side opening of the case, and the forward / reverse rotation housed inside the case are provided. A possible motor, a swing arm provided outside one of the facing sides of the case side and the cover side and swinging by the rotation output of the motor, and a prying-prevention cover covering the upper part of the swing arm In the door lock actuator, the cover-preventing cover is provided with a cover-side engaging portion, and the cover-side engaging portion is locked to position the cover-prevention cover main body above the swing arm. Because the cover mounting engagement portion is provided on at least one of the case and the cover,
Regardless of whether the swing arm is provided on the outside of the case or on the outside of the cover, when the cover for preventing prying is attached from the side where the swing arm is provided, The prevention cover main body can be positioned above the swing arm, that is, it can be a single component without having to use the two types of components for mounting the case and the cover. Therefore, it is possible to achieve a very excellent effect that it is possible to reduce the manufacturing cost of the components and to facilitate the management of the components, thereby contributing to the reduction of the production costs.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing an embodiment of a door lock actuator according to the present invention.

FIG. 2 is an explanatory bottom view of the door lock actuator shown in FIG. 1;

FIG. 3 is an explanatory front view of the door lock actuator shown in FIG. 1;

4 is an enlarged perspective explanatory view of a prying prevention cover attached to the door lock actuator shown in FIG. 1;

5 is an explanatory side view of the door lock actuator shown in FIG. 1 with a cover removed.

FIG. 6 is an explanatory sectional view taken along a line AA in FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 door lock actuator 2 cover 3 case 3 h mounting groove (cover mounting locking section) 4 motor 30 swing arm 42 prying prevention cover 42 a cover body (prying prevention cover body) 42 c locking claw (cover side) Locking part)

Claims (1)

(57) [Scope of request for utility model registration] 1. A case attached to a door, a cover for closing a side opening of the case, a forward / reverse rotatable motor housed inside the case, and the case and the cover facing each other. In a door lock actuator provided with a swing arm that is provided on one of the outsides and swings by the rotation output of the motor and a prying prevention cover that covers an upper part of the swing arm, the prying prevention cover is A cover side locking part is provided,
A cover mounting locking portion that locks the cover side locking portion and positions the prying prevention cover main body above the swing arm is provided on at least one of the case and the cover. A door lock actuator.