JPH09221947A - Door lock actuator and door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the locked state of a door from being released by an illegal operation by arranging a worm for coupling an electric motor and an operating shaft for worm wheel interlocking with the worm in a case and by coupling a locking ring to a portion where the operating shaft extends to the room side. SOLUTION: This door lock actuator is arranged at the room side of a door panel 16 by using a bracket 27, and a part of operating shaft 21 extending to the room side is arranged at the room side of interior trim 26 at the inner side of the door panel 16 through a hole 25 drilled in the door panel 16. Before attaching an interior trim 26, a locking ring 22 is arranged at the room side of the door panel 16, its tip is coupled to a first arm 23, and a second arm 24 at outdoor side is coupled to a locking lever 28 of a link mechanism 14. Upon completion of attaching the locking ring 22, the interior trim 26 is attached.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a door lock actuator and a door.

[0002]

2. Description of the Related Art The doors of a vehicle are required to be lightly opened and closed so that passengers can get in and out of the door smoothly, and the doors must be safe so that there is no unexpected opening of the door during traveling. In order to meet such requirements, a door lock device is installed in the door panel, a pillar of the vehicle body is equipped with a striker, and a ratchet of the door lock device is engaged with the striker when the door is closed. The door lock device consists of a door inside handle, a door outside handle, and a link mechanism connected to the locking knob, and at least an actuator for electrically operating the locking knob.The link mechanism moves the latch that can engage with the striker. Control.
To further divide the link mechanism, an open lever that creates a latched state that holds the engagement state between the striker and the latch or an unlatch state that holds the striker and the latch in the disengaged state by operating the door inside or outside handle It is divided into an open type mainly, and a locking type mainly a locking lever that creates a locked state that makes the open type completely inoperable by operating the locking button or an unlocked state that makes the open type operable. To be The actuator has a worm directly connected to the output shaft of the electric motor, a rotator having a worm wheel that meshes with the worm, and an operating lever that follows the movement of the rotator. The locked state or unlocked state is selected by electric operation in addition to manual operation of the button. Such a door lock device is disclosed in, for example, Japanese Patent Laid-Open No. 7-48968.

A conventional example is shown in FIGS. The striker 2 is fixed to the pillar 1 on the vehicle body side, and the door lock device 6 including the link mechanism 4 and the door lock actuator 5 is mounted in the door panel 3. A locking link 7 connected to a locking knob (button) and a locking lever 36 are arranged on the outside of the door lock actuator 5, and the locking link 7 extends upward through a space between the door panel 3 and the interior trim 10. At this time, as shown in FIG. 5, the locking link 7 extends upward along the side surface of the actuator 5, and then passes through the hole 9 (see FIG. 6) above the actuator 5 and formed in the door panel 3. hand,
It enters between the door panel 3 and the interior trim 10 and extends upward. As such a door, for example, Japanese Unexamined Patent Publication No.
It is disclosed in JP-A-264653.

[0004]

In the above-mentioned conventional example,
Since the locking link 7 extends from the outdoor side of the actuator 5 to the hole 9, the locking link 7 on the door panel side of the hole 9 is locked by a tool (wire etc.) illegally entering the door panel 3 along the door window glass. There is a risk of being illegally operated, unlocking the door and opening the door. Therefore, an object of the present invention is to solve the above-described disadvantages of the related art.

[0005]

In order to solve the above-mentioned problems, the present invention basically allows a part of the operating shaft of the actuator to extend to the inside of the room through the door panel, and the door panel and the interior trim. The means for locating the coupling portion of the locking link located between the door panel and the interior trim between the door panel and the interior trim is adopted. Further, the present invention provides a door having a locking link located between the interior trim and the door panel, the door panel having a hole through which the actuating shaft of the actuator is passed.

Specifically, the present invention includes an electric motor, a worm coupled to an output shaft of the electric motor, and
An operating shaft having a portion that rotates in response to the rotation of a worm wheel that meshes with the worm and that extends toward the indoor side is arranged,
Provided is a door lock actuator that connects a locking link to a portion of an operating shaft that extends toward the indoor side.

Further, the present invention provides a door having a locking link located between the door panel and the interior trim, and a first arm receiving the operating torque of the locking link located between the door panel and the interior trim.

The above-described coupling between the locking link and the operating shaft is performed inside the door panel, since the arrangement of the locking link and the coupling work with the operating shaft can be performed outside the indoor side of the door panel before mounting the interior trim. Compared with the conventional example, the assembly work is extremely simple. There is no operation of the locking link by illegal tools, and the car anti-theft effect is high. In addition, since the protector for the illegal tool is unnecessary, the structure can be simplified.

[0009]

DETAILED DESCRIPTION OF THE INVENTION Referring to FIGS. The door lock device 11 is a striker 1 fixed to a pillar 12.
3, an open system having a latch engageable with 3, and having a link connected to the inside and outside handles of the door, and a link mechanism 14 including a locking system having a locking link connected to a locking button,
A door lock actuator 15 that cooperates with the link mechanism 14 and operates a locking lever 28 is included. The link mechanism 14 is arranged inside the door panel 16 along the side surface facing the pillar 12, and the door lock actuator 15 is arranged along the indoor side portion of the door panel 16 using the bracket 27.

As shown in FIGS. 2 and 3, the door lock actuator 15 includes a case 17, an electric motor 18,
Worm 19, worm 1 directly connected to electric motor 18
Worm wheel 20 and worm wheel 2 that mesh with 9
It has a configuration in which an operating shaft 21 that rotates in cooperation with 0 is arranged,
The actuating shaft 21 extends to the inside of the room and has a first arm 23 connected to the locking link 22 at its tip. Further, the actuating shaft 21 extends to the outside of the room, and a tip end thereof is provided with a second arm 24 coupled to a locking lever 28 of the link mechanism 14.

A power transmission path between the operating shaft 21 and the electric motor 18 will be described. Worm wheel 20 as a rotating body that meshes with worm 19 fixed to electric motor 18
Has a pinion gear 29 that is spline-coupled to the center of rotation and that rotates integrally with the worm wheel 20. The pinion gear 29 meshes with a gear on the outer peripheral side of the second output lever 30 which is rotatably supported with respect to the operating shaft 21, and the rotation of the pinion gear 29 causes the rotation of the second output lever 30 around the operating shaft 21. Enable movement. The second output lever 30 further has an arcuate groove 31 centered on the axis of the operating shaft 21.

The operating shaft 21 is further fixed to the operating shaft 21, and the first output lever 3 which rotates integrally with the operating shaft 21.
2 has a protrusion 33 into which the first output lever 32 is inserted into the groove 31. The rotation torque of the electric motor 18 is
Worm 19, worm wheel 20, pinion gear 2
9 is transmitted to the second output lever 30 to rotate the second output lever 30 around the operating shaft 21. The rotation of the second output lever 30 around the operating shaft 21 causes the projection 33 to come into contact with one end of the arcuate groove 31, and the first projection is made through the projection 33.
The output lever 32 is rotated. As a result, the operating shaft 21 rotates, the locking button 35 is operated via the first arm 23 and the locking link 22, and the locking system of the link mechanism 14 is operated via the second arm 24 and the locking lever 28. Then, a locked state or an unlocked state is created. When this electric operation is completed, the second output lever 30 is returned to the neutral position by the coil spring 34,
A space is created between the protrusion 33 and one end of the arc-shaped groove 31.

To operate the locking button 35, the operating shaft 21 is rotated via the locking link 22 and the first arm 23, and the locking system of the link mechanism 14 is operated via the second arm 24 and the locking lever 28. It is operated and a locked state or an unlocked state is created by manual operation. During this manual operation, the first output lever 32 also rotates following the rotation of the operating shaft 21, but the protrusion 33 thereof only idles in the groove 31, and the rotation of the operating shaft 21 is not transmitted to the pinion gear 29.

As shown in FIG. 1, the door lock actuator 15 uses a bracket 27 to make a door panel 16.
Of the actuating shaft 21 extending to the indoor side through a hole 25 formed in the door panel 16 and inside the door panel 16 and the interior trim. 26 outside the room. Before attaching the interior trim 26, the locking link 22 is arranged along the interior side of the door panel 16 and the tip thereof is coupled to the first arm 23. That is, the connecting portion between the operating shaft 21 and the locking link 22, in the illustrated example, the connecting portion between the first arm 23 and the locking link 22, the interior trim 26 and the door panel 1.
Located between 6 and 6. This work is easy because it can be performed on the interior side portion of the door panel 16. The outdoor second arm 24 is coupled to the locking lever 28 of the link mechanism 14. After the mounting of the locking link 22 is completed, the interior trim 26 may be mounted.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example of the present invention.

FIG. 2 is a plan view of an actuator used in an example of the present invention.

FIG. 3 is a vertical sectional view of a door lock actuator.

FIG. 4 is a partial perspective view of the interior side of the door.

FIG. 5 is a sectional view of a conventional example.

FIG. 6 is a partial perspective view of the interior side of the door of the conventional example.

[Explanation of symbols]

 12 Pillar 13 Striker 14 Link Mechanism 15 Door Lock Actuator 16 Door Panel 17 Case 18 Electric Motor 21 Operating Axis 22 Locking Link 26 Interior Trim

Claims (4)

[Claims] 1. An operating shaft having, in a case, an electric motor, a worm coupled to an output shaft of the electric motor, and a portion which rotates in response to rotation of a worm wheel meshing with the worm and extends toward the indoor side. Is a door lock actuator that connects the locking link to the portion of the operating shaft that extends toward the indoor side. 2. The door lock actuator according to claim 1, wherein a locking lever of the link mechanism is coupled to a portion of the actuating shaft extending from the case to the outside of the room. 3. A door in which a locking link is located between the door panel and the interior trim, and a first arm which receives an operating torque of the locking link is located between the door panel and the interior trim. 4. An operating shaft having, in a case, an electric motor, a worm coupled to an output shaft of the electric motor, and a portion that rotates in response to rotation of a worm wheel that meshes with the worm and extends toward the indoor side. A door having an actuator in which the locking link is coupled to a portion of the actuating shaft extending toward the indoor side and the locking link, and the locking link is positioned in the space.