JP2000356061A - Door lock drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid an increase in size of a locking output lever in its operating direction by creating a theft-preventive (deadlock) condition and a locked condition from the same rotary movement from an initial stop position to a door locking position. SOLUTION: Once a rotor 3 driven for rotation by a motor 1 is put into rotational movement from an initial stop position to a locking position, the holder 43 of a output shaft restraint device 6 is given linear movement in the direction to approach an output shaft 4, so that the end of the holder 43 is held inserted in a fitting hole 21 provided in an actuation lever 7, thus restraining the output shaft 4. When the rotor 3 is again put into rotational movement from the initial stop position to the locking position, the holder 43 is released and given linear movement in the direction to move away from the output shaft 4, thus allowing the end of the holder 43 to move out of the fitting hole 21 to cancel the restraint of the output shaft 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output shaft restraint for repeatedly restraining and releasing an output shaft for transmitting a rotation output of a motor to a door lock every time a rotating body rotates from an initial stop position toward a door locking position. The present invention relates to a door lock driving device in which a device is incorporated in a case.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Publication No. 5-2431
There is a door lock drive device for a motor vehicle (prior art) as disclosed in Japanese Patent Application Publication No. 0-205. This door lock drive is
As shown in FIGS. 15 and 16, a driving member 101 that linearly moves in a vertical direction between a lock position and an unlock position, a motor 102 that can rotate in a normal direction and a reverse direction, and It has a gear transmission 103 that is drivingly connected to the output shaft of the motor 102, and a driving mechanism that controls the movement of the driving member 101 that controls the door lock.

[0003] The driving mechanism has a spindle 104 driven by a gear transmission 103 and a peripheral projection 105.
Spindle nut 10 screwed into spindle 104
6 and two parallel arms 10 with protrusions 107
8 and a driving member 101 having a horizontal member 109 connecting these parallel arms 108 to each other.

[0004] A spindle nut 106 screwed into the spindle 104 has at least a lock stroke (V _H ) shown in FIG. 16A and an anti-theft (deadlock) stroke (D) shown in FIG. _H ) is configured to linearly move in the illustrated direction or downward in the illustrated direction by a distance equal to the sum of _H ), and is configured not to rotate.

[0005]

However, in the conventional door lock driving device, the length of (V _H + D _H ) is required at least as the size of the device itself in the operation direction. As shown in FIG. 16, the length of the casing 110 that accommodates the spindle 104 and the spindle nut 106 is required to be about 1.5 times as long, and there is a problem that the physical size is increased.

Further, when operating from the unlock position to the lock position or the dead lock position, after the peripheral protrusion 105 of the spindle nut 106 has passed over the protrusion forming portion 107 of the parallel arm 108, the peripheral protrusion 105 contacts the microswitch 111. Thus, the motor 102 is electrically stopped. Therefore, there is a problem that the stop position of the spindle nut 106 varies due to changes in the environmental temperature and the drive voltage.

Further, at the time of the lock operation, the spindle nut 106 cannot be mechanically positioned, so it is necessary to detect the lock position and electrically stop it.
Inevitably, electrical detection means such as the microswitch 111 must be used. As a result, problems such as an increase in the number of parts and an increase in cost have arisen.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a door lock drive having three positions, i.e., an initial stop position, a door unlock position, and a rotational position of a door lock position. The rotation operation creates a deadlock state in which the door cannot be manually unlocked and a locked state in which the door can be unlocked manually, thereby suppressing an increase in the size of the drive unit in the operation direction. It is another object of the present invention to reduce the size of the door lock driving device.

[0009]

According to the first aspect of the present invention, each time the rotating body rotates from the initial stop position toward the door locking position, a deadlock state in which the drive unit is restrained, and the drive unit is restrained. By providing deadlock means that repeats the locked state of releasing the lock, only the deadlock means moves linearly. This can suppress an increase in the size in the operation direction and reduce the influence on the physical size of the door lock driving device, and thus can suppress an increase in the physical size of the door lock driving device.

According to the second and third aspects of the present invention, the rotary body is driven to rotate by the motor, so that the motion converter rotates in conjunction with the rotary body. And
When a linear motion in the radial direction of the drive unit is given to the slider by the action of the motion conversion unit that converts the rotational motion of the rotating body into a linear motion, the slider pushes the holder toward the drive unit. As a result, the holder is engaged with the engaging portion provided on the driving portion, so that a deadlock state occurs. Therefore, the basic operation of the door lock drive device is the rotational motion of the rotating body, and the linear motion portion is a part of the slider and the holder of the deadlock means, which affects the size of the door lock drive device. There is no.

According to the fourth aspect of the present invention, each time the rotating body rotates from the initial stop position toward the door locking position, the locked state is such that the driving unit can be manually moved in the unlocking operation direction. By providing deadlock means that repeats a deadlock state in which it is impossible to move the drive unit in the unlocking direction by manual operation, the portion that linearly moves is only the deadlock means. This can suppress an increase in the size in the operation direction and reduce the influence on the physical size of the door lock driving device, and thus can suppress an increase in the physical size of the door lock driving device.

According to the fifth and sixth aspects of the present invention, when the rotating body is rotationally driven by the motor, the motion converter rotates in conjunction with the rotating body. And
When a linear motion in the radial direction of the second drive unit is given to the slider by the action of the motion conversion unit that converts the rotational motion of the rotating body into a linear motion, the slider pushes the holder toward the second drive unit. Thereby, the first drive unit and the second drive unit are brought into an interlocked state by the engagement of the holder with the engagement unit provided on the second drive unit, so that the first drive unit is manually operated by the manual operation means. It is in a locked state where the part can be moved in the unlocking operation direction.

When the holder is disengaged from the engaging portion provided on the second driving portion, the interlocking state between the first driving portion and the second driving portion is released, so that the manual operation means is manually operated. This results in a deadlock state where the first drive unit cannot be moved in the unlocking operation direction. Therefore, the basic operation of the door lock drive device is the rotational motion of the rotating body, and the linear motion portion is a part of the slider and the holder of the deadlock means, which affects the size of the door lock drive device. There is no.

According to the seventh aspect of the present invention, the lock stopper is provided for mechanically stopping the rotation of the rotating body when the rotating body rotates from the initial stop position toward the door locking position. As a result, the operation of the door lock driving device can be mechanically stopped by the lock stopper, so that an electrical detection means such as a micro switch for electrically stopping is not required, and the number of parts and cost are reduced. Can be achieved, and the physical size can be reduced.
Further, there is no problem that the stop positions of the rotating body and the driving unit vary due to changes in the environmental temperature and the driving voltage.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIGS. 1 to 8 show a first embodiment of the present invention. FIG. 1A shows a main structure of a vehicle door lock driving device. FIG. 2B is a diagram illustrating the entire configuration of the output shaft restraint device, and FIG. 2 is a diagram illustrating the entire configuration of the vehicle door lock driving device.

The vehicle door lock driving device according to the present embodiment comprises:
It is a door lock actuator for operating a door lock for locking or unlocking a door provided in a vehicle such as an automobile. Here, the door lock is provided by a latch that engages with a striker provided on the vehicle body side, a ratchet that operates the latch, an open lever that operates the ratchet, and a locking lever that locks or unlocks (none of them are shown). It is configured and is drivingly connected to a vehicle door lock driving device via a rod (not shown).

This vehicle door lock driving device includes a motor 1 as a driving source, a pinion gear 2 fixed to an output shaft of the motor 1, a rotating body 3 driven to rotate by the motor 1, and a rotation of the motor 1. An output shaft 4 for transmitting output to a door lock ratchet via a rod or a locking lever,
Actuator case 5 for housing these main parts
And an output shaft restraining device 6 for restraining the output shaft 4.

As shown in FIGS. 1A and 2, the motor 1 is an electric motor housed in an actuator case 5 and capable of normal rotation and reverse rotation. It is controlled by a control circuit. The energization control circuit is configured to stop energizing the motor 1 after a certain time (for example, 0.2 to 0.5 seconds) has elapsed since the energization of the motor 1 was started.

The pinion gear 2 is shown in FIGS.
As shown in (1), it is integrally formed of resin. The pinion gear 2 is formed in a substantially cylindrical shape having a convex portion at the tip, and is fixed to the outer periphery of the output shaft 11 of the motor 1 by press fitting or the like so as to rotate integrally with the motor 1.

The rotating body 3 is shown in FIGS. 1 (a), 2 and 3
As shown in (a) and (b), the output shaft 4 is integrally formed of resin and is rotatably fitted around the output shaft 4 rotatably supported by the actuator case 5. As shown in FIGS. 1A and 2, the rotator 3 rotates from the initial stop position in the door locking position (lock position: LOCK) direction (left rotation direction in the drawing), and from the initial stop position. Door unlock position (unlock position:
UNLOCK) direction (right rotation direction in the figure).

The rotating body 3 is composed of a cylindrical portion and an annular portion. An outer peripheral gear (cylindrical gear) 12 that meshes with the pinion gear 2 fixed to the output shaft 11 of the motor 1 is formed on the outer peripheral surface of the cylindrical portion of the rotating body 3. The outer peripheral gear 12, together with the pinion gear 2, constitutes a reduction gear device for reducing the rotation speed of the motor 1.

On the surface of the annular portion of the rotating body 3, a projection 13 projecting from the surface toward the actuator case 5 is provided.
14 are provided. The rotating body 3 is a motor 1
Is completed, the return to the initial stop position (the position in FIG. 2) is performed by the urging force of the return spring 15 mounted between the back surface of the rotating body 3 and the bottom wall surface of the actuator case 5. I have.

One end of the return spring 15 is
As shown in (a), it is held by a case projection 16 formed so as to protrude from the bottom wall surface of the actuator case 5. The other end of the return spring 15
The rotating body 3 is held by a projection 17 formed so as to project from the back surface of the annular portion toward the actuator case 5 side.

The output shaft 4 corresponds to the drive section of the present invention. As shown in FIGS. 1 (a), 2 and 3 (a), (b), one end of the output shaft 4 is connected to the actuator case 5. It is rotatably supported, and the other end protrudes from the outer surface of the actuator case 5. And, on the outer periphery of the output shaft 4,
An operating lever 7 and a locking output lever 8 are provided.

As shown in FIGS. 1A, 2 and 3A and 3B, the operating lever 7 is formed of a resin, and the output shaft 4 is formed by insert molding the output shaft 4. 4 and one. And the operating lever 7
Has a cylindrical portion provided so as to cover the outer periphery of the output shaft 4, and a 3/4 disk-shaped flange portion extending radially outward from the cylindrical portion.

A round hole-shaped fitting hole 21 is formed in the cylindrical portion. The fitting hole 21 corresponds to the engaging portion of the present invention, and is formed so that the outer peripheral surface of the output shaft 4 (the inner peripheral surface of the cylindrical portion) communicates with the outer peripheral surface of the cylindrical portion. 4 in the radial direction. In addition, standing walls 22 and 23 are provided on both end surfaces of the flange portion so as to be orthogonal to each other.

When the rotating body 3 is rotated from the initial stop position toward the lock position, the standing wall 22 holds the projection 13 of the rotating body 3.
, And constitutes a first engaged portion for interlocking the rotating body 3, the output shaft 4, the operating lever 7, and the locking output lever 8 in the counterclockwise direction in FIG.

When the rotating body 3 rotates from the initial stop position to the unlock position, the standing wall 23 rotates the rotating body 3.
2 is engaged with the other end surface of the projection 13 to form a second engaged portion for interlocking the rotating body 3, the output shaft 4, the operating lever 7, and the locking output lever 8 in the clockwise direction shown in FIG. I do.

As shown in FIGS. 1A and 3A, one end of the locking output lever 8 has an output shaft protruding outward from the outer surface of the actuator case 5. As shown in FIGS. 4 is fixed to the other end by press fitting or welding. The other end of the locking output lever 8 is connected to a locking lever of a door lock via a rod. In this embodiment, the output shaft 4,
The actuating lever 7 and the locking output lever 8 constitute a drive unit of the present invention.

As shown in FIGS. 2 and 3 (a) to 3 (c), the actuator case 5 has a container-shaped lower case 31 having an opening at one end in the height direction. The upper case 32 is a case cover that closes the opening.

As shown in FIGS. 3A and 3B, the lower case 31 has a concave bearing 33 for rotatably supporting one end of the output shaft 4. Also, the lower case 31
As shown in FIG. 2, a connector 34 incorporating a terminal (external connection terminal) of the motor 1 is integrally formed on the lower side wall portion in the drawing.

The upper case 32 is shown in FIGS.
As shown in (c), the output shaft 4 has an insertion hole 35 through which the other end of the output shaft 4 is inserted, and a pair of claw portions 36 for fixing the output shaft restraining device 6. The pair of claw portions 36 hold and fix the output shaft restraining device 6 by a so-called snap fit.

Next, the output shaft restraining device 6 will be described with reference to FIGS.
This will be briefly described based on the above. Here, FIG. 4 is a view showing the entire configuration of the output shaft restraint device, and FIGS. 5 (a) to 5 (e).
FIG. 4 is a diagram showing each operation state of the output shaft restraining device.

The output shaft restraint device 6 corresponds to the deadlock means of the present invention. Each time the rotating body 3 rotates from the initial stop position to the locked position, the rotational movement of the rotating body 3 is converted into a linear movement. This is a driving unit restraining means that repeats a deadlock (DL) state and a lock (L) state.

The DL state is a state in which the operation of unlocking the door by manual operation cannot be performed by restricting the movement of the output shaft 4 during the locking operation of the door lock. The L state is a state in which the door can be unlocked manually by releasing the restraint of the output shaft 4 while the door lock is locked.

The output shaft restraining device 6 includes an upper case 3
A case 41 held and fixed between the two pair of claw portions 36;
42, a holder 43 that is movably housed in the cases 41 and 42 with the tip protruding from the end surface of the case 41, and a holder driving unit that mechanically drives the holder 43. .

The case 41 has a disc-shaped closing wall 44 provided at one end of the cylindrical wall so as to close the opening at one end of the cylindrical wall, and an insertion hole is formed at the center of the closing wall 44. 45. A part of the holder 43 is inserted into the insertion hole 45 movably in the axial direction. The case 42 is connected to the other end of the substantially cylindrical portion of the case 41, and has a plurality of case protrusions 46 on the inner peripheral surface of the substantially cylindrical portion.

The case 42 has a disk-shaped closing wall 47 provided at the other end of the cylindrical wall so as to close the opening at the other end of the cylindrical wall. It has an insertion hole 48. A part of the holder driving unit is inserted into the insertion hole 48 so as to be movable in the axial direction.

As shown in FIG. 5A, the holder 43 applies the spring force (biasing force) of the return spring 49.
It is urged by F in the direction in which it contacts the holder drive. The return spring 49 has one end held by the closing wall 44 of the case 41 and the other end held by the large diameter portion of the holder 43. On both sides of the large-diameter portion of the holder 43, the shaft-like portions 51, 5 having an outer diameter smaller than the large-diameter portion are provided.
2 are provided.

A plurality of holder projections 53 are provided on the outer periphery of the large-diameter portion so as to engage with the case projections 46 of the case 41. 43 is held in the case 42. Further, a large number of mountain-shaped projections (concavo-convex portions, meshing portions) 54 are formed on the annular end surface of the large-diameter portion of the holder 43 on the side of the holder driving unit.

The holder 43 is shown in FIG.
As shown in (b), the shaft-shaped portion 5 is displaced to the left in the drawing.
The distal end of the first lever 1 enters the fitting hole 21 formed in the cylindrical portion of the operating lever 7 to restrict the movement of the output shaft 4. Further, the holder 43 is displaced rightward in the figure to release the restraint of the output shaft 4 by the tip of the shaft portion 51 coming out of the fitting hole 21 of the operation lever 7.

The holder driving section rotates in conjunction with the rotating body 3 and has a trapezoidal projection for converting the rotating movement of the rotating body 3 into a linear linear movement of the output shaft 4 in the radial direction (the motion conversion of the present invention). And a cam 61), and a slider 61 and the like, which are provided with a linear motion of the output shaft 4 in the radial direction by the action of the projection 14, and push the holder 43 toward the output shaft 4.

On one side of the annular portion of the slider 61,
Cylindrical part 62 whose tip projects beyond the end face of case 42
Is provided. The distal end of the cylindrical portion 62 is formed in a semicircular shape. A plurality of protrusions 63 are formed on the outer periphery of the annular portion of the slider 61.

The projection 63 engages with the case projection 46 of the case 42 to prevent the slider 61 from moving in the rotational direction, and is slidable in the case 42 in the axial direction. Also, on the annular end surface of the annular portion of the slider 61 on the holder (left side in the figure) side, a chevron (an uneven portion, a meshing portion) that meshes with the chevron 54 of the holder 43.
64 are provided.

The annular end face of the annular portion of the slider 61 on the right side in the figure is formed by a closing wall (engaging portion) 47 of the case 42.
, The movement of the slider 61 to the right in the figure is restricted. The slider 61 has a fitting hole 65 into which the shaft portion 52 of the holder 43 is slidably fitted.

[Operation of the First Embodiment] Next, the operation of the vehicle door lock driving device of the present embodiment will be briefly described with reference to FIGS.

When the door is locked, that is, when the door lock is operated, the rotating body 3 is moved to the initial stop position,
The drive unit such as the locking output lever 8 is unlocked (U
The motor 1 is energized so as to rotate from the L) position to the lock (L) position.

Then, as shown in FIG. 6A, the pinion gear 2 fixed to the output shaft 11 of the motor 1 meshes with the outer peripheral gear 12 of the rotating body 3, so that the rotation output (torque) of the motor 1 ) Is the rotating body 3 via the pinion gear 2
It is transmitted to.

At this time, since the standing wall 22 of the operating lever 7 is engaged with the projection 13 of the rotating body 3, the operating lever 7 is pushed by the projection 13 by rotating the rotating body 3 in the direction of the arrow. . That is, as shown in FIG. 6B, the operating lever 7, the output shaft 4, and the locking output lever 8 rotate integrally with the rotating body 3 in the direction of the arrow.

Then, as shown in FIG. 6B, when the rotating body 3 rotates in the direction of the arrow, one end of the return spring 15 is held by the case projection 16 and the other end of the return spring 15 is The return spring 15 is bent by being pushed by the projection 17 of the second member.

For this reason, the door lock is driven by the rotation of the locking output lever 8, and the door lock is operated to lock (lock) the door. When the locking lever of the door lock is mechanically locked to the lock stopper, the rotation of the rotating body 3, the operating lever 7, the output shaft 4, and the locking output lever 8 is stopped.

When a certain period of time has elapsed since the start of energization of the motor 1 and the energization of the motor 1 is stopped, the rotating body 3 and the pinion gear are driven by the urging force (spring force) of the return spring 15. By rotating the motor 2 and the output shaft 11 of the motor 1 in reverse, the rotating body 3 returns to the initial stop position as shown in FIG.

Here, as shown in FIG. 6B, when the rotating body 3 rotates in the direction of the arrow, the tip of the cylindrical portion 62 of the slider 61 of the output shaft restraining device 6 becomes the projection 14 of the rotating body 3. , The rotational motion of the rotating body 3 is converted into a linear motion of the output shaft 4 in the radial direction. For this reason,
By moving the slider 61 to the left in the drawing, the holder 43 is pushed out to the slider 61 (push: PU).
SH).

Then, as shown in FIGS. 5A to 5C, the holder 43 engages with the case projection 46 formed on the inner peripheral surface of the case 42, thereby forming the front end surface of the case projection 46. Is held and fixed. As a result, the distal end of the shaft portion 51 of the holder 43 is held in a state of being inserted into the fitting hole 21 formed in the cylindrical portion of the operating lever 7, whereby the operating lever 7 and the output shaft 4 are held. And the movement of the locking output lever 8 is restricted.

Therefore, as shown in FIG. 6 (c), the rotational position of the operating lever 7, the output shaft 4 and the locking output lever 8 is controlled by the manual operation of the operating lever 7, the output shaft 4 and the locking output lever 8 from outside. It becomes a deadlock (DL) state in which operation can be prevented (prevention of theft).

Again, the rotator 3 as shown in FIG.
When the motor 1 is energized so that the drive unit such as the locking output lever 8 rotates from the deadlock (DL) position to the lock (L) position in the initial stop position, FIG.
As shown in (2), the rotating body 3 rotates in the direction of the arrow, and the slider 61 rides on the projection 14 of the rotating body 3 again.

At this time, since the locking lever of the door lock is mechanically locked to the lock stopper, the rotating body 3 rotates in the direction of the arrow, but the operating lever 7, the output shaft 4, and the locking output lever 8 are rotated. The rotation remains stopped. As a result, the state where the door lock is locked is continued.

When a certain period of time has elapsed since the start of energization of the motor 1 and the energization of the motor 1 is stopped, the rotating body 3 and the pinion gear are driven by the urging force (spring force) of the return spring 15. By rotating the motor 2 and the output shaft 11 of the motor 1 in the reverse direction, the rotating body 3 returns to the initial stop position as shown in FIG.

Here, as shown in FIGS. 5D and 5E, the distal end of the shaft portion 51 of the holder 43 comes out of the fitting hole 21 formed in the cylindrical portion of the operating lever 7. .
As a result, as shown in FIG. 7C, the operation lever 7, the output shaft 4, and the locking output lever 8 are brought into a lock (L) state in which manual operation can be performed from outside.

Next, when the door is unlocked, that is, when the door lock is unlocked, the rotating body 3 as shown in FIG. The drive unit is unlocked (U) from the locked (L) position.
L) The motor 1 is energized so as to rotate in the position direction.

Then, as shown in FIG. 8B, the rotating body 3 rotates in the direction of the arrow, and the standing wall 23 of the operating lever 7 engages with the projection 13 of the rotating body 3, so that the projection 13 When the operating lever 7 is pressed, the operating lever 7, the output shaft 4, and the locking output lever 8 also integrally rotate in the direction of the arrow.

When the locking lever of the door lock is mechanically locked to the lock stopper, the rotation of the rotating body 3, the operating lever 7, the output shaft 4, and the locking output lever 8 is stopped. This unlocks the door by unlocking the door, thereby unlocking the door.

When a certain period of time has passed since the start of energization of the motor 1 and the energization of the motor 1 is stopped, the urging force (spring force) of the return spring 15 causes the rotating body 3 and the pinion gear to rotate. 2 and the output shaft 11 of the motor 1 are reversed. As a result, FIG.
It will be in the unlocked state as shown in FIG.

[Effects of the First Embodiment] As described above, in the vehicle door lock driving device having three rotational positions, ie, the initial stop position, the lock position and the unlock position, the lock from the initial stop position. By creating the deadlock state and the locked state by the same rotation operation to the position, it is possible to suppress an increase in the size of the locking output lever 8 in the operation direction. The basic operation of the vehicle door lock driving device is the rotational motion of the rotating body 3 and the like, and the portion of the linear motion is the case 4 of the output shaft restraining device 6.
Since the slider 61 and the holder 43 in the first and second parts 42 are only a small part, the physical size of the vehicle door lock drive device (actuator case 5) is not affected.

The rotation of the drive unit such as the locking output lever 8 from the unlocked position to the locked position or the rotation from the locked position to the deadlock position is realized by the same rotary reciprocating motion of the rotating body 3. be able to.
Therefore, a portion corresponding to the deadlock stroke (D _H ) of the related art is not required, and the size of the vehicle door lock driving device (door lock actuator) can be reduced.

Further, since the rotation range of the locking output lever 8 is mechanically regulated by the lock stopper of the door lock, an electric detecting means such as a micro switch for electrically stopping is not required. Therefore, the size of the actuator case 5 can be reduced in size. Further, the stop position of the locking output lever 8 does not vary due to changes in the environmental temperature and the drive voltage. Further, it is possible to reduce the number of parts and cost.

[Structure of Second Embodiment] FIGS. 9 to 14 show a second embodiment of the present invention, and FIG. 9A is a diagram showing a main structure of a vehicle door lock driving device. , FIG. 9
FIG. 1B is a view showing the entire configuration of the output shaft restraining device, and FIG.
0 is a view showing the overall configuration of the vehicle door lock drive device.

The drive unit of the vehicle door lock drive device (door lock actuator) of this embodiment is shown in FIG.
As shown in (b), a round rod-shaped locking output shaft (corresponding to a first output shaft of the present invention) 4a and a substantially rotatably fitted outer periphery on the other end side of the locking output shaft 4a. And a cylindrical knob lever output shaft (corresponding to a second output shaft of the present invention) 4b.

One end of the locking output shaft 4 a is rotatably supported by the concave bearing portion 33 of the actuator case 5, and the other end thereof penetrates the insertion hole 35 and protrudes from the outer surface of the actuator case 5. It is arranged as follows. Then, on the outer periphery of the locking output shaft 4a, 3/4
An operating lever 7 having a disk-shaped flange and a locking output lever 8 are fixed so as to be integrally linked.

The knob lever output shaft 4 b has one end surface slidably in contact with one end surface of the operating lever 7, and the other end portion penetrates the insertion hole 35 and protrudes from the outer side surface of the actuator case 5. It is arranged. A knob lever 9 which is drivingly connected to a knob (not shown) as a manual operation means is fixed to the outer periphery of the other end side of the knob lever output shaft 4b so as to integrally cooperate therewith.

A round hole-shaped fitting hole 21 is formed at a predetermined position from one end surface of the knob lever output shaft 4b. The fitting hole 21 corresponds to the engaging portion of the present invention, and is directed in the radial direction of the knob lever output shaft 4b so that the outer peripheral surface of the knob lever output shaft 4b communicates with the outer peripheral surface of the cylindrical portion. Penetrates.

The operating lever 7 is integrally formed with the locking output shaft 4a by insert molding the locking output shaft 4a. Standing walls 22 and 23 are provided on both end surfaces of the flange portion of the operation lever 7 so as to be orthogonal to each other and engage with the projections 13 of the rotating body 3 respectively.

One end of the locking output lever 8 is fixed to the other end of the locking output shaft 4a projecting outward from the outer surface of the actuator case 5 by press-fitting or welding. The other end of the locking output lever 8 is connected to a locking lever of a door lock via a link rod. In the present embodiment, the locking drive shaft 4a, the operating lever 7, and the locking output lever 8 constitute a first drive unit of the present invention.

One end of the knob lever 9 is fixed to the other end of the knob lever output shaft 4b protruding outward from the outer surface of the actuator case 5 by press fitting or welding. The other end of the knob lever 9 is connected to a knob for manually unlocking or manually locking the door lock via link means such as a link rod or a wire. In the present embodiment, the second drive unit of the present invention is constituted by the knob lever output shaft 4b and the knob lever 9.

Next, the output shaft restraining device 6 will be described with reference to FIGS.
4 will be briefly described. Here, FIG. 11C is a view showing a mounting structure of the output shaft restraining device 6, and FIG.
FIGS. 13 (a) to 12 (c) are diagrams showing the rotation operation from unlock to deadlock, and FIGS. 13 (a) to 13 (c).
Is a diagram showing the rotation operation from deadlock to lock,
FIGS. 14A to 14C are diagrams showing the rotation operation from lock to unlock.

The output shaft restraint device 6 corresponds to the deadlock means of the present invention. Each time the rotating body 3 rotates from the initial stop position to the locked position, the rotational movement of the rotating body 3 is converted into a linear movement. The second drive unit restraining means repeats a deadlock (DL) state and a lock (L) state.

The output shaft restraining device 6 is held between a pair of claw-shaped portions 36 integrally formed on the surface of the operating lever 7 and fixed to cases 41 and 42, and is movably housed in the cases 41 and 42. And a holder driving unit that mechanically drives the holder 43.

As shown in FIGS. 9 (a) and 9 (b), the holder 43 is displaced leftward in the figure so that the tip of the shaft portion 51 is fitted to one end of the knob lever output shaft 4b. The locking lever output shaft 4a and the knob lever output shaft 4b are interlocked by restricting the movement of the knob lever output shaft 4b by entering the mating hole 21. Further, the holder 43 is displaced rightward in the drawing and the tip of the shaft portion 51 comes out of the fitting hole 21 of the knob lever output shaft 4b, thereby releasing the locking of the knob lever output shaft 4b. The interlocking state between the shaft 4a and the knob lever output shaft 4b is released.

The holder driving section rotates in conjunction with the rotating body 3 and has a trapezoidal projection for converting the rotating movement of the rotating body 3 into a linear movement in the radial direction of the knob lever output shaft 4b (the present invention). Motion conversion section, equivalent to cam) 1
4, and the action of the projection 14 gives a linear movement of the knob lever output shaft 4b in the radial direction.
61 that pushes the knob in the direction of the knob lever output shaft 4b
And so on.

[Operation of the Second Embodiment] Next, the operation of the vehicle door lock driving apparatus according to the present embodiment will be briefly described with reference to FIGS.

When the door lock is operated, the rotating body 3 is moved to the initial stop position, the first position of the locking output lever 8 or the like.
The drive unit energizes the motor 1 so as to rotate from the unlock (UL) position to the lock (L) position shown in FIG. Then, as shown in FIG. 12B, the rotating body 3 rotates in the direction of the arrow, whereby the operating lever 7 is pushed by the projection 13.

When the rotating body 3 rotates in the direction of the arrow, one end of the return spring 15 is
And the other end of the return spring 15 is
Of the return spring 15
Bends. For this reason, the door lock is driven by the rotation of the locking output lever 8, and the door lock is operated to lock (lock) the door. When the locking lever of the door lock is mechanically locked to the lock stopper, the rotation of the rotating body 3, the operating lever 7, the locking output shaft 4a, and the locking output lever 8 is stopped.

On the other hand, as shown in FIG. 12 (b), when the rotating body 3 rotates in the direction of the arrow, the tip of the slider 61 of the output shaft restraining device 6 rides on the projection 14 of the rotating body 3 to rotate. The rotational movement of the body 3 is converted into a radial linear movement of the knob lever output shaft 4b. Therefore, when the slider 61 moves leftward in the figure, the holder 43 is pushed out by the slider 61, and the holder 43 is pushed.
Into the fitting hole 21 formed at one end of the knob lever output shaft 4b.

When a certain period of time has elapsed since the start of energization of the motor 1 and the energization of the motor 1 is stopped, the rotating body 3 and the pinion gear are driven by the urging force (spring force) of the return spring 15. When the output shaft 11 of the motor 2 and the output shaft 11 of the motor 1 rotate in the reverse direction, the rotating body 3 returns to the initial stop position as shown in FIG.

On the other hand, as shown in FIG. 12C, when the rotating body 3 returns to the initial stop position, the tip of the slider 61 of the output shaft restraining device 6 descends from the projection 14 of the rotating body 3 so that the slider 61 moves to the right in the drawing, the tip of the holder 43 is moved to the knob lever output shaft 4b.
From the fitting hole 21 formed at one end of the wire.

Accordingly, since the interlocking state between the locking output shaft 4a and the knob lever output shaft 4b is released,
When the knob is manually unlocked, the knob lever output shaft 4b swings the locking output shaft 4a even if the knob lever 9 and the knob lever output shaft 4b are turned in the unlocking direction. That is, as shown in FIG. 12C, a deadlock (DL) capable of preventing manual unlocking operation of the operating lever 7, the locking output shaft 4a and the locking output lever 8 from the knob (to prevent theft). ) State.

Again, the rotating body 3 is in the initial stop position, and the first drive unit such as the locking output lever 8 is rotated from the deadlock (DL) position to the lock (L) position direction shown in FIG. When the motor 1 is energized as shown in FIG.
As shown in (b), the rotating body 3 rotates in the direction of the arrow,
The slider 61 rides on the projection 14 of the rotating body 3 again.

As a result, the rotational movement of the rotating body 3 is converted into the linear movement of the output shaft 4 in the radial direction.
Is pushed out to the slider 61 (push: PUSH). Then, the holder 43 engages with a case projection 46 formed on the inner peripheral surface of the case 42 so that the case projection 46 is formed.
It is held and fixed at the tip end surface of.

At this time, since the locking lever of the door lock is mechanically locked to the lock stopper, the rotating body 3 rotates in the direction of the arrow, but the operating lever 7, the output shaft 4, and the locking output lever 8 The rotation remains stopped. As a result, the state where the door lock is locked is continued.

When a certain period of time has passed since the start of energization of the motor 1 and the energization of the motor 1 was stopped, the rotating body 3 and the pinion gear were driven by the urging force (spring force) of the return spring 15. When the output shaft 2 of the motor 2 and the output shaft 11 of the motor 1 rotate in reverse, the rotating body 3 returns to the initial stop position as shown in FIG.

On the other hand, when the rotating body 3 returns to the initial stop position,
The distal end of the slider 61 of the output shaft restraining device 6 descends from the projection 14 of the rotating body 3, and the holder 43 engages with the case projection 46 formed on the inner peripheral surface of the case 42, so that the tip surface of the case projection 46 Is held and fixed.

Therefore, as shown in FIG. 13 (c), the distal end of the holder 43 is held while being inserted into the fitting hole 21 formed at one end of the knob lever output shaft 4b. , The locking output shaft 4a and the knob lever output shaft 4b are interlocked. As a result, the operating lever 7, the locking output shaft 4a, and the locking output lever 8 from the knob enter a locked (L) state in which manual unlocking operation is possible.

Next, when the door is unlocked, that is, when the door lock is unlocked, the first driving unit such as the rotator 3 at the initial stop position, the locking output lever 8 and the like is operated as shown in FIG.
From the lock (L) position shown in FIG.
L) The motor 1 is energized so as to rotate in the position direction. Then, as shown in FIG. 14B, the rotating body 3 rotates in the direction of the arrow, and the operation lever 7 is attached to the projection 13 of the rotating body 3.
When the operating lever 7 is pushed by the projection 13 by the engagement of the standing wall 23 of the above, the operating lever 7, the output shaft 4 and the locking output lever 8 also rotate integrally in the direction of the arrow.

When the locking lever of the door lock is mechanically locked to the lock stopper, the rotation of the rotating body 3, the operating lever 7, the output shaft 4, and the locking output lever 8 is stopped. This unlocks the door by unlocking the door, thereby unlocking the door.

When a certain period of time has elapsed since the start of energization of the motor 1 and the energization of the motor 1 is stopped, the rotating body 3 and the pinion gear are driven by the urging force (spring force) of the return spring 15. 2 and the output shaft 11 of the motor 1 are reversed.

On the other hand, the holder 43 is held and fixed at the tip end surface of the case projection 46 by engaging with the case projection 46 formed on the inner peripheral surface of the case 42. As a result, the tip of the holder 43 is held in a state of being inserted into the fitting hole 21 formed at one end of the knob lever output shaft 4b, so that the locking output shaft 4a and the knob lever output shaft 4b are interlocked. The state is maintained. As a result, FIG.
An unlock state as shown in FIG.

[Effects of the Second Embodiment] As described above, the vehicle door lock driving device according to the present embodiment is changed from the output shaft restraint system as in the first embodiment to the idle swing system.
When the operating state of the vehicle door lock driving device is, for example, a deadlock state, even if the knob or the knob lever 9 is manually operated, the operating force is the operating lever 7 and the locking output shaft 4a.
Further, since the power is not transmitted to the locking output lever 8 and is not transmitted to the rotating body 3, a large load is not applied to the motor 1 and the motor 1 does not break down.

In the vehicle door lock driving device according to this embodiment, the vehicle door lock driving device having three positions, that is, the initial stop position, the lock position, and the unlock position in the rotational direction, has the initial stop position. The same effect as in the first embodiment can be achieved by creating the deadlock state and the locked state by the same rotation operation from the to the locked position.

[Modification] In this embodiment, a door lock drive device for a vehicle that locks or unlocks a vehicle door (a door lock actuator,
Although the present invention is applied to a deadlock actuator, the door lock driving device of the present invention may be used for a trunk lid driving device that locks or unlocks a trunk lid of a vehicle.

Further, the door lock drive device of the present invention can be used as a vehicle door lock drive device for locking or unlocking a door of a vehicle other than an automobile, and a building door for locking or unlocking a door of a building structure. It may be used for a lock drive device.

In this embodiment, only when the projection 13 of the rotating body 3 and the standing walls 22 and 23 of the operating lever 7 are engaged,
Although the configuration in which the rotating body 3 and the driving units such as the operating lever 7, the output shaft 4 and the locking output lever 8 are interlocked is applied, the structure is such that the rotating body 3 and the driving unit are always interlocked. Is also good.

[Brief description of the drawings]

FIG. 1A is a plan view showing a main configuration of a vehicle door lock driving device, and FIG. 1B is a cross-sectional view taken along line AA of FIG. 1A (first embodiment).

FIG. 2 is a plan view showing the entire configuration of the vehicle door lock driving device (first embodiment).

3A is a sectional view taken along line BB of FIG. 2, and FIG. 3B is a sectional view of FIG.
FIG. 3C is a cross-sectional view taken along line CC, and FIG. 3C is a cross-sectional view taken along line DD of FIG.

FIG. 4 is an exploded view showing the entire configuration of the output shaft restraining device (first embodiment).

FIGS. 5A to 5E are explanatory views showing respective operating states of the output shaft restraining device (first embodiment).

FIGS. 6A to 6C are explanatory views showing a rotation operation from unlock to deadlock (first embodiment).

FIGS. 7A to 7C are explanatory diagrams showing a rotation operation from deadlock to lock (first embodiment).

FIGS. 8A to 8C are explanatory diagrams showing a rotation operation from lock to unlock (first embodiment).

FIG. 9A is a plan view showing a main configuration of a vehicle door lock driving device, and FIG. 9B is a sectional view taken along line AA of FIG. 9A (second embodiment).

FIG. 10 is a plan view showing an overall configuration of a vehicle door lock driving device (second embodiment).

11A is a sectional view taken along line BB of FIG. 10, FIG. 11B is a sectional view taken along line CC of FIG. 10, and FIG. 11C is a sectional view taken along line DD of FIG. Example).

FIGS. 12A to 12C are explanatory views showing a rotation operation from unlock to deadlock (second embodiment).

FIGS. 13A to 13C are explanatory views showing a rotation operation from deadlock to lock (second embodiment).

FIGS. 14A to 14C are explanatory diagrams showing a rotation operation from lock to unlock (second embodiment).

FIG. 15 is a plan view showing the entire configuration of a door lock driving device for a vehicle (prior art).

16 (a) and (b) are EE cross-sectional views of FIG. 15 (prior art).

[Explanation of symbols]

 Reference Signs List 1 motor 2 pinion gear 3 rotating body 4 output shaft (drive unit) 4a locking output shaft (first drive unit) 4b knob lever output shaft (second drive unit) 5 actuator case 6 output shaft restraining device (deadlock means) 7 operating lever (1st drive section) 8 Locking output lever (1st drive section) 9 Knob lever (2nd drive section) 13 Projection 14 Projection 21 Fitting hole (engagement section) 43 Holder 61 Slider (holder drive section)

Claims (7)

[Claims] 1. A door lock driving device for driving a door lock for locking or unlocking a door, comprising: (a) a motor as a driving source; and (b) drivingly connected to the motor, the door being driven from an initial stop position. A rotating body rotating in the direction of the door unlocking position for unlocking the door or in the direction of the door locking position for locking the door; and (c) drivingly connected to the rotating body, the rotating body is moved from the initial stop position to the door locking position. A drive unit that, when rotated in the direction, locks the door lock, and that, when the rotator rotates from the initial stop position toward the door unlock position, unlocks the door lock; and (d) the rotator is initially stopped. A deadlock means for repeating a deadlock state in which the drive unit is restrained and a lock state in which the restraint of the drive unit is released each time the door is rotated from the position to the door locking position. A door lock drive device characterized by the following. 2. The door lock driving device according to claim 1, wherein the driving section has an engaging section such as a convex section, a concave section, or a hole section, and the deadlock means engages with the engaging section. A door lock drive device comprising: a holder that restrains the drive unit when combined; and a holder drive unit that mechanically drives the holder. 3. The door lock driving device according to claim 2, wherein the holder driving unit converts a rotational motion of the rotating body into a linear motion of the driving unit in a radial direction, and the motion converting unit. A door lock drive device comprising: a slider that is provided with a linear motion in the radial direction of the drive unit by the action of the unit and pushes the holder toward the drive unit. 4. A door lock driving device for driving a door lock for locking or unlocking a door, comprising: (a) a motor as a driving source; and (b) drivingly connected to the motor, the door being driven from an initial stop position. A rotating body rotating in the direction of the door unlocking position for unlocking the door or in the direction of the door locking position for locking the door; and (c) drivingly connected to the rotating body, the rotating body is moved from the initial stop position to the door locking position. A driving unit that locks the door lock when rotated in the direction, and unlocks the door lock when the rotating body rotates from the initial stop position toward the door unlocking position; and (d) the rotating body is initially stopped. Each time the door is rotated from the position to the door locking position, the drive unit is moved in the unlocking direction by manual operation and the drive unit is moved in the unlocking direction by manual operation. And a deadlock means for repeating a deadlock state in which a door lock cannot be performed. 5. The door lock driving device according to claim 4, wherein the driving unit is a first driving unit for locking or unlocking the door lock, and for manually unlocking the door lock. A second drive unit that is drivingly connected to the manual operation unit; the second drive unit includes an engagement unit such as a protrusion, a recess, or a hole; and the deadlock unit includes the first drive unit. The first drive unit and the second drive unit are disposed so as to interlock with the first drive unit and engage with the engagement unit.
A holder for releasing the interlocking state between the first driving unit and the second driving unit by setting the driving unit to an interlocking state or disengaging the engaging unit, and mechanically driving the holder A door lock driving device, comprising: 6. The door lock driving device according to claim 5, wherein the holder driving unit is a motion conversion unit that converts a rotational motion of the rotating body into a linear motion in a radial direction of the second driving unit.
And a slider which is provided with a linear motion in the radial direction of the second drive unit by the action of the motion conversion unit and pushes the holder toward the second drive unit. 7. The door lock driving device according to claim 1, wherein when the rotating body rotates from the initial stop position toward the door locking position, the rotation of the rotating body is mechanically performed. A door lock driving device, comprising: a lock stopper for temporarily stopping the door.