JPH07145682A - Door-lock driving gear - Google Patents

Abstract

PURPOSE:To prevent release by the manual operation of a knob at a time when a door lock body is locked by an actuator, and to obviate the damage of the door lock body and the actuator by manual operation at that time. CONSTITUTION:An engaging groove 32 is formed to a neutral lever 9 fixed onto the output shaft 21 of an actuator body driven by one electric motor and driving-connected to a door lock body. A ball 11 is held by a knob inner lever 10 rotatably supported to the output shaft 21 and driving-connected to a knob. When the door lock body is transferred from the state of locking to the state of super-locking, the neutral lever 9 is moved in an extent larger than the knob inner lever 10 and the ball 11 is separated from the engaging groove 32, and the state of the interlocking of the neutral lever 9 and the knob inner lever 10 is released, thus preventing the movement of the door lock body and the actuator body even when the knob is pulled forcibly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock drive device capable of preventing unlocking by manual operation of a knob when locking a door lock body.

[0002]

2. Description of the Related Art Conventionally, as a door lock drive device,
Depending on the knob that locks and unlocks the door lock body mechanically by manual operation, the actuator that locks and unlocks the door lock body via the push rod, and the rotation position of the key inserted in the key cylinder. A first electric motor for driving the actuator by means of a lever, and a second electric motor for fixing the push rod when the door lock body is locked,
Technology for preventing unlocking of the door lock body by manually operating the knob when the door lock body is locked (Japanese Patent Laid-Open No. 58-176374 and Japanese Patent Laid-Open No. 841/841)
No. 81).

[0003]

However, in the prior art, when the door lock body is locked by the actuator and the push rod is fixed by the second electric motor, a large load is applied to pull the knob to pull the door. If the lock body is forcibly unlocked, the door lock body, the actuator, the second electric motor, and the like are damaged.

The present invention prevents unlocking by manual operation when the door lock body is locked by the actuator,
Moreover, it is an object of the present invention to provide a door lock drive device capable of preventing damage to the door lock body due to manual operation at this time.

[0005]

SUMMARY OF THE INVENTION The present invention provides a door lock body for locking and unlocking a door, an actuator for operating the door lock body, and a manual operation for mechanically operating the door lock body by manual operation. In the door lock drive device including means, the actuator includes an actuator body having an output shaft, and a first lever which is interlocked with the output shaft of the actuator body to rotate about the output shaft of the actuator body. A second lever superposed on the first lever, rotatably supported by the output shaft of the actuator body, and rotatable about the output shaft of the actuator body in conjunction with the manual operation means; The actuator body is held between the first lever and the second lever so as to be movable in the radial direction of the output shaft, and Engagement means for engaging the first lever and the second lever when moving forward in the radial direction of the output shaft of the chute body, and releasing the first lever and the second lever when moving backward, and this engaging means. Elastic means for urging the engaging means in the forward direction, and releasing means for displacing the engaging means in the backward direction against the elastic force of the elastic means only when the door lock body is locked by the actuator body. A technical means including a case for accommodating the actuator body, the first lever, the second lever, the engaging means, the elastic means and the releasing means is adopted.

[0006]

According to the present invention, when the door lock body is locked by the actuator body of the actuator, the releasing means displaces the engaging means in the backward direction against the elastic force of the elastic means. Moves backward in the radial direction of the output shaft of the actuator body. This allows
Since the first lever interlocking with the output shaft of the actuator body and the second lever interlocking with the manual operation means are released,
The interlocking state between the door lock body and the manual operation means is released. Therefore, even if the door lock body is forcibly unlocked by using the manual operation means, the door lock body will not be unlocked and the door lock body will not be damaged.

In addition, inside the case of the actuator,
Since the actuator body, the first lever, the second lever, the engaging means, the elastic means, and the releasing means are housed, rainwater, mud, or dust that infiltrate the periphery of the actuator, the actuator body, the first lever, the second It is possible to prevent the lever, the engaging means, the elastic means and the releasing means from adhering to each other. This can prevent the sliding resistance between the first lever and the second lever from increasing and the first lever and the second lever from malfunctioning.

[0008]

【Example】

[Structure of Embodiment] Next, a door lock drive device of the present invention will be described based on an embodiment shown in FIGS. 1 to 7.
1 and 2 are views showing a door lock drive device.

The door lock driving device 1 is manually operated when locking and unlocking a driver side door of an automobile, and a door lock main body 2 when locking and unlocking the door lock main body 2 from the interior of the automobile. Such as a key cylinder (not shown) and a centralized door lock switch (not shown) for inserting a key (not shown) when locking and unlocking the knob 3 and the door lock body 2 from the outside of the vehicle compartment. An actuator 4 for operating the door lock body 2 in accordance with a locking / unlocking instruction from the instruction means is provided.

The door lock body 2 is fixed between an outer panel (not shown) and an inner panel (not shown) of the driver side door. The door lock body 2 meshes with a striker (not shown) fixed to the vehicle body side.

The key cylinder and the centralized door lock switch work as an instruction means for instructing whether the door lock body 2 is locked or unlocked. That is, the key cylinder instructs the actuator 4 to unlock the door lock main body 2, lock the door lock main body 2 and super lock the door lock main body 2 by using an electric signal by turning the inserted key. In addition, the centralized door lock switch is locked.
Side or unlock (unlock) side to unlock the door lock body 2 of all doors of the vehicle or doors other than the driver side door and lock the door lock body 2 by using an electric signal. Instruct.

The key is 1 after the key is inserted into the key cylinder when the door lock body 2 is unlocked.
The lock position and super lock position may be instructed by turning the key. Insert the key into the key cylinder, rotate it once to indicate the lock position, then return the key once and then rotate it again. You may instruct super lock.

The key cylinder is the door lock body 2.
Is operated mechanically in response to the operation of a key. The door lock body 2 and the key cylinders of the other doors (eg, the passenger side door, the rear seat side door, the slide door, the back door) other than the driver side door of the automobile are not mechanically connected, These are operated by respective actuators in accordance with instructions for unlocking, locking and super-locking from the key cylinder. Note that each door (for example, driver's side door, rear side door, slide door, back door) is unlocked from the key cylinder of the passenger side door, locked, and super-locked according to instructions.
Alternatively, the actuator may be operated.

The knob 3 is the manual operation means of the present invention, and is attached to the door trim so as to be able to move up and down while being inserted through a hole (not shown) formed in the inner panel of the driver's side door. That is, the knob 3 is the door lock body 2
Unlocking position to unlock the door, door lock body 2
It has two positions, a lock position to lock the. A round rod-shaped rod 5 having a diameter smaller than that of the knob 3 extends from below the knob 3. The rod 5 is mounted between the outer panel and the inner panel of the driver's side door so as to be able to move up and down, and has a lower end bent into an L shape, and the L bent portion is a hole of the knob lever 36. 36a
It is fitted inside.

Next, the structure of the actuator 4 will be described in detail with reference to FIGS. 3 to 7 are views showing the main part of the actuator 4. The actuator 4 is a means for locking and unlocking the door lock body 2, and is attached between the outer panel and the inner panel of the driver side door.
The case 6 of the actuator 4 is composed of an upper case 6a and a lower case 6b, as shown in FIGS. A packing 60 for preventing water or the like from entering the inside of the case 6 is mounted between the upper case 6a and the lower case 6b. Inside the case 6, one electric motor 7 as a drive source, an actuator body 8, a neutral lever 9,
Knob inner lever 10, ball 11, spring 1
2, an unlocking side rubber cushion 13, a locking side rubber cushion 14, a micro switch 15 and the like are stored.

The electric motor 7 has a setting position (unlocking position, locking position or super lock position) of an instruction from a key cylinder, a vehicle speed detection type or manual operation type centralized door lock switch or a remote control door lock. On the basis of an instruction corresponding to, the unlocking side, the locking side or the super lock side is energized so as to drive the actuator body 8. The electric motor 7 has a pinion 17 press-fitted onto the outer periphery of the drive shaft 16.

The actuator body 8 is connected to the gear 18 meshing with the pinion 17 of the electric motor 7, the pinion 19 integrally formed with the gear 18, the sector gear 20 meshing with the pinion 19, and the sector gear 20 via the neutral lever 9. It is composed of the output shaft 21 and the like.

The sector gear 20 rotates about the output shaft 21, and is in an unlock position for unlocking the door lock body 2, a lock position for locking the door lock body 2, and a door. Knob 3 when locking the lock body 2
It has three positions (rotational positions) called a super lock position that prevents unlocking by manual operation. An arc-shaped mounting groove 20a is formed on one end surface of the sector gear 20. A spring 23 for returning the sector gear 20 to the neutral position and reducing the manual operation force is mounted in the mounting groove 20a. The spring 23 is prevented from protruding from the mounting groove 20a by a pressing plate 25 fastened to one end surface of the sector gear 20 with a screw 24. Further, the driving force of the electric motor 7 transmitted to the sector gear 20 is transmitted to the output shaft 21 by the engagement between the fitting concave portion 26 of the sector gear 20 and the fitting convex portion 27 of the neutral lever 9.

The output shaft 21 of the actuator body 8 is insert-molded on the neutral lever 9 and rotates according to each position of the sector gear 20. The output shaft 21 is rotatably supported by the case 6, and the locking lever 2 is attached to the end protruding from the upper case 6a.
2 is fixed. A hole 22a is formed at the open end of the locking lever 22, and a joint 28 connecting to the door lock body 2 is fitted in the hole 22a.

The neutral lever 9 is the first lever of the present invention.
A lever, which is integrally formed of resin, has an unlock position for unlocking the door lock body 2, a lock position for locking the door lock body 2, and a knob for locking the door lock body 2. It has three positions (rotational positions) called a super lock position that prevents unlocking by manual operation of No. 3.

As shown in FIGS. 3 to 7, the neutral lever 9 rotates integrally with the output shaft 21 of the actuator body 8. The neutral lever 9 has a cylindrical boss portion 29 into which the output shaft 21 is insert-molded in the axial center portion, and a fan-shaped portion 30 fanned out from the boss portion 29. An arcuate wall 31 is formed on the outer peripheral edge of the fan-shaped portion 30 facing the knob inner lever 10.
It is formed so as to project to the side.

Further, on the inner peripheral surface of the arcuate wall 31, an engagement groove 32 with which the ball 11 engages, and a substantially arcuate surface 33 adjacent to the engagement groove 32 are formed. Then, the unlocking side edge of the fan-shaped portion 30 comes into contact with the unlocking side rubber cushion 13 and is locked when the neutral lever 9 rotates and reaches the unlock position. Further, the locking side edge of the fan-shaped portion 30 comes into contact with the locking side rubber cushion 14 and is locked when the neutral lever 9 rotates and reaches the super lock position.

The knob inner lever 10 is the second lever of the present invention, which is integrally formed of resin, and is used to unlock the door lock body 2 and to unlock the door lock body 2. 2 called lock (locked) position
It has one position (rotation position).

The knob inner lever 10 is shown in FIG.
7 to 7, a cylindrical portion 34 that is rotatably supported on the outer circumference of the output shaft 21 of the actuator body 8 and a fan-shaped portion that is fanned out from the cylindrical portion 34 and that overlaps the fan-shaped portion 30 of the neutral lever 9. It has a section 35. A knob lever 36 connected to the rod 5 of the knob 3 is fixed to a portion of the cylindrical portion 34 that projects from the upper case 6a.

Since the fan-shaped portion 35 is larger than the fan-shaped portion 30 of the neutral lever 9 in the circumferential direction, the rotation range of the knob inner lever 10 is smaller than that of the neutral lever 9. The fan-shaped portion 35 is formed with a fan-shaped thick portion 37 that is bulged toward the fan-shaped portion 30 of the neutral lever 9. A storage groove 38 for storing and holding the ball 11 and the spring 12 is formed on an opposing surface (outer peripheral surface) of the thick portion 37 facing the inner peripheral surface of the arc-shaped wall 31 of the neutral lever 9.

Further, on the outer peripheral surface of the fan-shaped portion 35, an overhanging piece 40 capable of pushing the pin button 39 of the microswitch 15 is formed. Further, a plurality of contact points 41 for detecting the set position of the knob 3 are attached to the side surface of the upper case 6a of the fan-shaped portion 35, and these contact points 41 are in sliding contact with the substrate 42 fixed to the upper case 6a. It is like this. Then, when the knob inner lever 10 is set to the unlock position, the substrate 42 slidably contacted with the plurality of contacts 41 outputs an ON signal to a computer (not shown), and when set to the lock position, the computer 42 The off signal is output to. When inputting an ON signal, the computer energizes the electric motor 7 to operate the actuator body 8 to actuate the actuator body 8 when the vehicle speed of the vehicle exceeds a predetermined vehicle speed (for example, 20 km / h) and the door lock body 2 Automatically control to lock.

The unlocking side edge of the fan-shaped portion 35 comes into contact with and is locked by the unlocking side rubber cushion 13 when the knob inner lever 10 rotates and reaches the unlock position. Also,
The locking side edge of the fan-shaped portion 35 comes into contact with the locking side rubber cushion 14 and is locked when the knob inner lever 10 rotates and reaches the lock position.

The ball 11 is the engaging means of the present invention, and is formed in a spherical shape from metal or resin, and is between the neutral lever 9 and the knob inner lever 10, that is, inside the housing groove 38, of the actuator body 8. Output shaft 2
1 is stored and held so that it can move back and forth in the radial direction. When the ball 11 advances in the radial direction of the output shaft 21 and engages with the engaging groove 32 of the neutral lever 9, the ball 11 works to drive-connect the neutral lever 9 and the knob inner lever 10. Further, when the ball 11 retreats in the radial direction of the output shaft 21 and disengages from the engaging groove 32 of the neutral lever 9 and abuts on the substantially arcuate surface 33 of the arcuate wall 31, the neutral lever 9 and the knob inner lever. 10 and 10 act to release the drive connection.

The spring 12 is the elastic means of the present invention and urges the ball 11 in the direction of pressing the ball 11 against the engagement groove 32 of the arcuate wall 31 of the neutral lever 9 or the substantially arcuate surface 33. This spring 12 has a ball 1 at one end
1 and the other end is held on the bottom wall surface of the storage groove 38 of the knob inner lever 10. The neutral lever 9, the knob inner lever 10, the ball 11 and the spring 12 constitute a super lock mechanism.

The unlocking side rubber cushion 13 and the locking side rubber cushion 14 are fixed to the inner wall surface of the lower case 6b of the case 6, and absorb the impact when the neutral lever 9, the knob inner lever 10 and the sector gear 20 are locked. Work. The locking side rubber cushion 14
Is a releasing means of the present invention, and when the neutral lever 9 is rotated to the super lock position side in a state where the locking side edge of the fan-shaped portion 35 of the knob inner lever 10 is locked, the spring 12 is elastic. It acts to separate the ball 11 from the engagement groove 32 to the substantially arcuate surface 33 against the force.

Pin button 39 of micro switch 15
When pressed by the overhanging piece 40 of the knob inner lever 10, the circuit is switched to stop energizing the electric motor 7. The power supply to the electric motor 7 is stopped by, for example, a short circuit between terminals.

[Operation of the Embodiment] Next, the operation of this embodiment will be briefly described with reference to FIGS. here,
4 to 7 are diagrams showing respective operating states of the door lock driving device 1.

(When the door lock body 2 is unlocked) When the door lock body 2 is unlocked, as shown in FIG. 4, the knob 3 is set to the unlocked position, and the neutral lever 9 and the knob inner lever are set. 10 is set to the unlocked position, and the unlocking side edges of the respective fan-shaped portions 30 and 35 are in contact with and locked by the unlocking side rubber cushion 13.

(When the door lock body 2 is locked from the outside of the vehicle compartment) Next, when locking the door lock body 2 from the outside of the vehicle compartment of the automobile, the key is inserted into the key cylinder and the key is turned to rotate the door lock body. Instruct to lock 2. Then,
When the electric motor 7 is energized from the unlocked state to the locked side, the actuator body 8 is driven to the lock position side. As a result, the neutral lever 9 rotates to the lock position side, and the locking lever 2 rotates integrally with the output shaft 21 integrally formed with the neutral lever 9.
The door lock body 2 which is connected to 2 via the joint 28 operates toward the locking side.

At this time, since the engaging groove 32 of the neutral lever 9 and the ball 11 are engaged by the elastic force of the spring 12, the knob inner lever 10 follows the movement of the neutral lever 9 and the knob inner lever. 1
0 rotates to the lock position side around the output shaft 21 of the actuator body 8. Then, as shown in FIG. 5, the locking side end edge of the fan-shaped portion 35 of the knob inner lever 10 comes into contact with the locking side rubber cushion 14 and is locked.

At this time, the pin button 39 of the micro switch 15 is replaced by the protruding piece 40 of the knob inner lever 10.
Since it is pushed by, the power supply to the lock side of the electric motor 7 is also temporarily stopped. As a result, the rotation of the output shaft 21, the neutral lever 9, and the knob inner lever 10 of the actuator body 8 is stopped, the door lock body 2 is locked, and the knob 3 is lowered to the lock position. Therefore, the door on the driver's side of the automobile is locked, and the other doors are also locked in conjunction with this.

(When locking the door lock body 2 in the vehicle compartment) Next, when the door lock body 2 is locked in the vehicle compartment of the vehicle, the knob 3 is manually lowered to the lock position side. Then, the knob inner lever 10 connected to the knob 3 via the rod 5 rotates to the lock position side around the output shaft 21 of the actuator body 8. At this time, since the engaging groove 32 of the neutral lever 9 and the ball 11 are engaged by the pressing force of the spring 12, the neutral lever 9 also follows the movement of the knob inner lever 10, and the neutral lever 9 moves. The output shaft 21 of 8 rotates to the lock position side.

Then, as shown in FIG. 5, the locking side edge of the fan-shaped portion 35 of the knob inner lever 10 contacts the locking side rubber cushion 14, and the rotation is stopped. This allows
A joint 28 is attached to a locking lever 22 that rotates integrally with an output shaft 21 that is integrally formed with the neutral lever 9.
The door lock main body 2 connected via the lock operates to the lock side, the door on the driver's side of the automobile is locked, and the other doors are locked in conjunction with this.

(When the door lock body 2 is super-locked)
Next, when the door lock body 2 is super-locked, the key is inserted into the key cylinder and the key is turned to instruct the super-lock of the door lock body 2. Then,
When the electric motor 7 is energized from the locked state to the super lock side, the actuator body 8 is driven to the super lock position side. As a result, the neutral lever 9 rotates to the super lock position side, so that the door lock body 2 connected via the joint 28 to the locking lever 22 that rotates integrally with the output shaft 21 integrally formed with the neutral lever 9. Operates toward the super lock side.

When the neutral lever 9 rotates to the super lock position side by the margin rotation angle θ (see FIG. 5), the lock side rubber cushion 14 restricts the rotation of the knob inner lever 10 to the super lock position side. Therefore, the spring 12 bends and the ball 11 rides over the inclined surface of the engagement groove 32 of the neutral lever 9 and separates to the substantially arcuate surface 33, whereby the engagement state between the engagement groove 32 and the ball 11 is released. Come off. As a result, the interlocking state between the neutral lever 9 and the knob inner lever 10 is released, and the locking side end edge of the fan-shaped portion 30 of the neutral lever 9 comes into contact with the locking side rubber cushion 14 and is locked. As shown in, the output shaft 21 of the actuator body 8 and the neutral lever 9 are set to the super lock position.

Therefore, since the door lock body 2 connected to the locking lever 22 fixed to the output shaft 21 through the joint 28 is in the super lock state,
The door on the driver's side of the car is super-locked, and other doors are also super-locked in conjunction with this. In addition,
The knob 3 stops at the lock position because the knob inner lever 10 does not rotate.

(When the knob 3 is manually operated when the door lock body 2 is in the super lock state) Next, when the door lock body 2 is in the super lock state, the door lock body 2 is forcibly operated by manually operating the knob 3. Even if it is attempted to unlock, as shown in FIG. 7, the ball 11 simply slides on the substantially arcuate surface 33 of the arcuate wall 31 of the neutral lever 9,
Since the neutral lever 9 does not rotate, the door lock body 2 cannot be unlocked. Further, since an excessive load is not applied to the door lock body 2, the electric motor 7, the actuator body 8, and the output shaft 21 of the actuator body 8, the components of the door lock body 2 and the actuator 4 are not damaged.

Next, by inserting the key into the key cylinder and operating it to operate the actuator 4, the neutral lever 9 is rotated in the unlocking direction.
When the engaging groove 32 of the neutral lever 9 and the ball 11 are engaged again, the neutral lever 9 and the knob inner lever 10 are brought into an interlocking state, and normal locking and unlocking are possible.

[Effects of Embodiment] As described above, in the door lock drive device 1 of this embodiment, when the door lock body 2 is in the super lock state, the door lock body 2 and the actuator 4 and the knob 3 are interlocked. The state can be canceled. Thus, the door lock body 2 and the actuator 4 can be prevented from being damaged, and the door lock body 2 can be prevented from being unlocked by the manual operation of the knob 3, and the automobile can be prevented from being stolen. .

Then, the knob 3 and the actuator body 8 are driven by the electric motor 7 driven by the actuator body 8.
Since the interlocking with the door lock body 2 and the release of the interlocking state are performed, a plurality of electric motors 7 are not required, and the product cost can be reduced. Moreover,
A space for accommodating another electric motor in the case 6 of the actuator 4 is not required, so that the size of the case 6 can be made compact and the mounting space can be reduced. In addition, battery exhaustion and electric motor 7
Even if the failure occurs, the door lock body 2 can be released from the super-locked state by a key operation, so that the door lock body 2 can be unlocked and locked even when the battery runs out or the electric motor 7 fails.

Then, by engaging the neutral lever 9 and the knob inner lever 10, the ball 11 for interlocking the door lock body 2 and the knob 3 is urged toward the engaging groove 32 side of the neutral lever 9. Spring 1
2 is provided. In addition, the ball 11 as the engaging means
Is spherical, and the output shaft 21 of the actuator body 8 is
It is configured to move back and forth in the radial direction.
For this reason, the ball 11 and the spring 12 are not twisted, and the neutral lever 9 and the knob inner lever 10 operate reliably, so that the door lock drive device 1 is excellent in reliability.

Then, the microswitch 15 and the substrate 42
Is attached to the inner wall surface of the upper case 6a of the case 6, and the pin button 3 of the microswitch 15 is attached.
A plurality of contact points 4 that slide against the overhanging piece 40 or the substrate 42 that pushes 9
1 is integrally provided on a knob inner lever 10 that is rotatably attached to the upper case 6a side. Therefore, electric parts can be concentratedly provided near the upper case 6a, and the contact point 41 and the overhanging piece 40 can be provided.
Since it is possible to shorten the length to the contacted parts of
The actuator 4 can be made compact.

[Modification] In this embodiment, a key is inserted into the key cylinder to unlock and lock the door lock body 2.
Although the super lock is instructed, unlocking, locking, and super lock of the door lock body 2 may be instructed using a remote controller. Further, the locking position and the super lock position may be the same rotating position. The present invention may be used for locking and unlocking the trunk lid of an automobile. In this embodiment, the ball 11 is used as the engaging means, but a rod-shaped member having a spherical tip end may be used as the engaging means.

Although the spring 12 is used as the elastic means in this embodiment, an elastically deformable resin such as synthetic rubber or plastic or an elastically deformable metal such as a leaf spring may be used as the elastic means. Further, the shapes of the neutral lever 9 as the first lever and the knob inner lever 10 as the second lever are not limited to the fan shape.

The engaging means may be held on the side of the knob inner lever 10 as the second lever, and the engaged portion may be provided on the neutral lever 9 as the first lever. The elastic means may be fixed to the engaging means and integrally formed, or may be integrally formed with either the first lever or the second lever.

In this embodiment, one locking side rubber cushion 14 is provided as the releasing means. However, as the releasing means, the rotation stop timing of the neutral lever 9 as the first lever and the knob inner lever 10 as the second lever is stopped. Two restricting means may be provided to restrict the rotation so that they differ.

[0052]

According to the present invention, since the interlocking state between the door lock body and the manual operation means is released when the door lock body is locked by the actuator, the door lock body is forcibly operated by manually operating the manual operation means. Even if an attempt is made to unlock the door, the unlocking of the door lock body can be prevented, and the door lock body can be prevented from being damaged.

Moreover, since the super lock mechanism is housed in the case of the actuator body, the waterproof property of the super lock mechanism can be ensured.

[Brief description of drawings]

FIG. 1 is a plan view showing a door lock driving device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded view showing a main part of an actuator according to an embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an operating state during unlocking of the embodiment of the present invention.

FIG. 5 is an explanatory diagram showing an operating state at the time of locking of the embodiment of the present invention.

FIG. 6 is an explanatory view showing an operating state at the time of super lock according to the embodiment of the present invention.

FIG. 7 is an explanatory diagram showing an operating state when a knob is manually operated during super lock according to an embodiment of the present invention.

[Explanation of symbols]

 1 Door Lock Driving Device 2 Door Lock Main Body 3 Knob (Manual Operation Means) 4 Actuator 6 Case 7 Electric Motor 8 Actuator Main Body 9 Neutral Lever (First Lever) 10 Knob Inner Lever (Second Lever) 11 Ball (Engaging Means) 12 Spring (Elastic Means) 13 Unlocking Rubber Cushion 14 Locking Rubber Cushion (Release Means) 21 Actuator Main Body Output Shaft 31 Arc Wall 32 Engagement Groove 38 Storage Groove

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroshi Takeyama 1-1, Showa-cho, Kariya city, Aichi prefecture, Nihon Denso Co., Ltd. (72) Inventor Kazuhiro Nakao 1-1-chome, Showa town, Kariya city, Aichi prefecture Incorporated (72) Inventor Jiro Inoue 1200 Shimojo Nishiwari, Ogusa-cho, Nirasaki-shi, Yamanashi Mitsui Mining & Smelting Co., Ltd.

Claims (1)

[Claims] 1. A door lock body for locking and unlocking a door,
In a door lock drive device including an actuator that operates the door lock body and a manual operation unit that mechanically operates the door lock body, the actuator includes an actuator body having an output shaft, and the actuator. A first lever that rotates around the output shaft of the actuator body in conjunction with the output shaft of the main body; and a first lever that is superposed on the first lever and rotatably supported by the output shaft of the actuator body. A second lever that rotates around the output shaft of the actuator body in conjunction with the operating means, and a movable back and forth in the radial direction of the output shaft of the actuator body between the first lever and the second lever. When held and moved forward in the radial direction of the output shaft of the actuator body, the first lever and the second lever Engaging means for releasing the first lever and the second lever when retracted, an elastic means for urging the engaging means in a forward direction, and the actuator body for moving the door lock body. Release means for displacing the engaging means in the backward direction against the elastic force of the elastic means only when locked; the actuator body, the first lever, the second lever, the engaging means, the A door lock drive device comprising: an elastic means and a case for accommodating the releasing means.