JPH10184146A - Door lock auxiliary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate any trouble of neatly closing a door again and eliminate any noise by detecting a half-door state by limit switches provided in a notched part of a lock disc, automatically and rotationally moving the lock disc, and perfectly lock the door. SOLUTION: A lock disc 3 is provided with a limit switch 13 which is turned on, when a lock ratchet 4 is engaged with a first notched part 3a with its half- door state, and a limit switch 14 which is turned off, when the lock ratchet 4 is engaged with a second notched part with its perfectly locked state. When the limit switch 13 is turned on, a lock disc rotational mechanism 11 which is constituted of bevel gears 6a, 6b, a support shaft 8, an electromagnetic clutch 9, and a motor 10 automatically and rotationally moves the lock disc 3. When the door is perfectly locked, the limit switch 14 is turned off, the rotation of the motor 10 is automatically stopped. This constitution can automatically and perfectly lock the door even in its half-opened state, eliminate any trouble of closing the door neatly again, and eliminate any necessity of closing it vigorously so as to cause no noise.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock mechanism having a two-stage lock state in which a fully-locked state is attained. About.

[0002]

2. Description of the Related Art As shown in FIGS. 8 (a) and 8 (b), a conventional vehicle door lock mechanism includes a striker 51 provided on a vehicle body and a catcher mechanism 54 provided on a vehicle door. Have. Catcher mechanism 5
4 has a lock disk 52 that bites into the striker 51 and a lock ratchet 53 that fixes the lock disk 52.

Normally, when the door is closed, as shown in FIG. 8 (b), the lock disk 52 bites into the striker 51 and rotates clockwise on the paper. Then, the lock ratchet 53 is engaged with the second notch 52b of the lock disk 52 so that the lock disk 52 cannot be turned over, so that a completely locked state is obtained (completely locked state). Further, the degree to which the lock disk 52 bites into the striker 51 is small,
When the rotation distance is small, the lock ratchet 53 is engaged with the first cutout portion 52a of the lock disk 52 to be in a half-locked state (half-locked state).
This half-locked state indicates a locked state in a so-called half-door state. As described above, the door lock mechanism performs a two-stage lock so that the door does not open unexpectedly while the vehicle is running, and also prevents the door from opening due to deformation of the body or the door in the event of a collision. It has become.

[0004]

However, in order to completely lock the door of an automobile, a strong external force must be applied to the door, and it is necessary to close the door vigorously. In particular, when the door is closed while sitting on the seat of the car, it is difficult to apply force when closing the door, and the door is often in a half-locked state (a so-called half-door state). Then, it is necessary to manually close the door again to bring the door into a completely locked state, which is troublesome. In addition, the noise when closing the door sometimes impairs the quality of the door, and there is a problem that it is uncomfortable for the residents around the house in the middle of the night or in a quiet residential area, and also for the user of the car. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to detect a half-lock state (so-called half-door state) and automatically rotate a lock disk. Door lock assist that eliminates the need to manually close the door by completely closing the door, and eliminates discomfort by eliminating noise when closing the door An apparatus is provided.

[0006]

According to the first aspect of the present invention,
A door lock assisting device provided in a door lock mechanism that transitions from a semi-locked state to a fully-locked state by rotating a lock disk when the door is closed, and a first detection unit that detects a semi-locked state; A rotation means for rotating a lock disk; and a rotation control for controlling the rotation means so as to change from the half-locked state to the completely locked state when the half-locked state is detected by the first detection means. Means. To completely lock a car door, a strong external force must be applied to the door, and the door must be closed vigorously. In particular, when the door is closed while sitting in the seat of the car, it is difficult to apply force when closing the door, and the door is often in a half-locked state (a so-called half-door state). When the first detecting means detects the semi-locked state even in the semi-locked state as described above, the rotation control means operates, and the lock disk can be automatically rotated to the completely locked state. This saves the labor of opening and re-closing the door. Furthermore, discomfort can be avoided by eliminating noise when closing the door.

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, there is provided a second detecting means for detecting a completely locked state, and the rotation control means is controlled by the second detecting means. When the completely locked state is detected, the rotating means is stopped. When the second detection means detects the completely locked state, the rotation control means operates to stop the rotation means, thereby preventing damage to the door lock assist device.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, when the rotation control means detects that the semi-locked state is detected by the first detection means,
The rotating means is rotated after a predetermined period has elapsed. When the first detecting means detects the half-locked state, the turning control means operates, and when the turning means is turned after a predetermined period, the turning means is turned to the full locking state manually. Can be prevented from working to prevent damage to the motor.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect, a movement of the door knob is detected during the transition from the half-locked state to the fully locked state. It has a 3rd detection means, The said rotation control means stops the said rotation means, when the movement of the knob of a door is detected by the said 3rd detection means. When the third detection means detects the movement of the knob of the door, the rotation control means operates and stops the rotation means, so that the door lock assist device can be prevented from being damaged when the door is opened. In addition, it is possible to prevent the user from being burdened by the force of rotating the lock disk when opening the door.

According to a fifth aspect of the present invention, in addition to the configuration of the first aspect, a stop of the lock disk is detected during the transition from the half-locked state to the completely locked state. 4 rotation detecting means,
When the stop of the lock disk is detected by the fourth detecting means, the rotating means is stopped. When the fourth detection means detects that the lock disk has stopped, the rotation control means operates and stops the rotation means, whereby damage to the door lock assist device can be prevented.

[0011]

1 to 7 show an embodiment of the present invention.
This will be described with reference to FIG. As shown in FIG. 1, the door lock assisting device of the present embodiment includes a lock disk turning mechanism 11 (turning means) provided in a door lock mechanism, a semi-locked state detecting device (first detecting means), A complete lock state detection device (second detection means) and a door knob movement detection device (third detection device)
Detection means), a lock disk stop detection device (fourth detection means), and a lock disk rotation control device (rotation control means).

The above door lock mechanism has a striker 2 provided on the body of the car and a catcher mechanism 5 provided on the door of the car. This catcher mechanism 5
Has a lock disk 3 and a lock ratchet 4. The lock disk 3 is rotatably supported at the center of a frame 12 that casings the catcher mechanism 5. The lock ratchet 4 is provided at an end of the frame 12 at a position where the lock ratchet 4 can be engaged with the lock disk 3, and is rotatably supported so as to interlock with a door knob. . In the door lock mechanism thus configured, in the locked state, the lock disk 3 bites into the striker 2, and the lock ratchet 4 engages with the first cutout 3a or the second cutout 3b of the lock disk 3. Is formed.

The lock disk rotating mechanism 11 has a first bevel gear 6a fixed to the lock disk 3 and a second bevel gear 6b meshed with the first bevel gear 6a. The second bevel gear 6b is connected via a support shaft 8 to an electromagnetic clutch 9 which can be connected and released freely. The electromagnetic clutch 9 is provided with a motor 10.
The motor 10 is fixed to the frame 12 described above. The lock disk rotation mechanism 11 configured as described above transmits the rotational driving force of the motor 10 to the electromagnetic clutch 9 and the second bevel gear 6b.
The lock disk 3 is rotated by transmitting the rotation to the first bevel gear 6a via the first and second bevel gears 6a.

The above semi-locked state detecting device has a first limit switch 13 having an a contact. The first limit switch 13 is provided in the first notch 3a of the lock disk 3 so that the first limit switch 13 is turned on when it is in a half-lock state (so-called half-door state). That is, when the lock ratchet 4 is engaged with the first notch 3a,
The lock ratchet 4 and the first limit switch 13 come into contact with each other. Further, the above-described complete lock state detection device has a second limit switch 14 having a contact b. The second limit switch 14 is provided in the second cutout portion 3b so that the second limit switch 14 is turned off when it is completely locked. That is, the lock ratchet 4
The lock ratchet 4 and the second limit switch 14 come into contact with each other when they are engaged with the second notch 3b. Furthermore, the above-mentioned door knob movement detecting device is:
A third limit switch 15 having a contact b is provided. The third limit switch 15 is provided on the inner wall 12a of the frame 12 so as to be turned off by utilizing the rotation of the lock ratchet 4. That is, when the door knob is pulled up, the lock ratchet 4 that interlocks with the door knob.
The lock ratchet 4 and the third limit switch 15 are brought into contact with each other by utilizing the mechanical movement of the lock ratchet rotating toward the inner wall 12a of the frame 12. As described above, the limit switches 13 to 15 are arranged so as to be turned ON / OFF in conjunction with the catcher mechanism 5. In the present embodiment, the half lock state detecting device and the like are the limit switches 13 to 15, but are not limited thereto. Therefore, the present invention is also achieved by a sensor capable of detecting a half-lock state or the like.

The lock disk stop detecting device has a second timer 21 as shown in FIG. The second timer 21 is turned on when the first limit switch 13 is turned on.
The counting is started after the state is reached, and the second relay contact 21a of the b contact is set to the OFF state after 5 seconds, for example. Note that the set time of the second timer 21 is an example for convenience of description, and is not limited to this. In the present embodiment, the lock disk stop detection device is the second timer 21, but the present invention is not limited to this. Therefore, the present invention is also achieved by a sensor or the like that can detect the stop of the lock disk 3.

The lock disk rotation control device has limit switches 13 to 15, a second relay contact 21 a that is turned on / off by a second timer 21, and a delay device 20. Note that the limit switches 13 to 15 of the present embodiment not only function as detection devices, but also function as lock disk rotation control devices.

The delay device 20 includes a first timer 19
And a first relay contact 19a of an a contact. When the first limit switch 13 is turned on, the first timer 19 is turned on.
The counting is started after the state is set, and the first relay contact 19a is set to the ON state after three seconds, for example. Note that the set time of the first timer 19 is illustrated for convenience of description, and is not limited to this.

The lock disk rotation control device configured as described above includes an electromagnetic clutch 9 and a motor 10 that constitute the lock disk rotation mechanism 11 and the detection devices 1.
The control circuit 16 is configured by connecting the control circuit 3 to the control circuit 16.

The control circuit 16 includes a main circuit 17 for operating the lock disk rotation mechanism 11 until the transition from the half-locked state to the completely locked state is completed, and an auxiliary circuit 18 for restricting energization of the main circuit 17. And The main circuit 17 includes a power supply 22 and a first limit switch 13.
, The second limit switch 14, the third limit switch 15, the first relay contact 19a, and the second relay contact 2
1a, an electromagnetic clutch 9 and a motor 10 connected in parallel
And are connected in series. Also,
The auxiliary circuit 18 includes first and second relay contacts 19a and 21a.
First and second timers 19 and 21 for turning ON / OFF the
The power supply 22 is connected to the limit switches 13 to 15. 1st limit switch 1
Reference numeral 3 denotes an ON state when the lock ratchet 4 is engaged with the first notch 3a, so that the auxiliary circuit 18 can be energized. Then, the first timer 19 turns on the first relay contact 19a after a certain period of time, thereby energizing the main circuit 17. The second limit switch 14 is a lock ratchet 4
Is turned off when it is engaged with the second notch 3b, so that energization to the main circuit 17 and the auxiliary circuit 18 is prohibited. The third limit switch 15 is provided by a lock ratchet 4 that is interlocked with the door knob when the door knob is pulled.
The state is turned off, and energization of the main circuit 17 and the auxiliary circuit 18 is prohibited. Further, the second timer 21 turns off the second relay contact 21a after a certain period of time has elapsed since the first limit switch 13 was turned on.
By setting the state, energization of the main circuit 17 is prohibited.

Each of the limit switches 13 to 15, each of the timers 19 and 21, and each of the relay contacts 19a and 21a return to an initial state when the door is released.

The control circuit 1 configured as described above
When a half-lock state (a so-called half-door state) is set, the main circuit 17 is energized, and the electromagnetic clutch 9 and the motor 1 are turned on.
The lock disk 3 is rotated by the lock disk rotation mechanism 11 by operating the lock disk 3. Then, when the lock of the lock disk 3 is rotating, when the knob of the door is pulled up, or when the lock disk 3 is stopped due to the presence of foreign matter in the door, the above-mentioned third limit switch 15 and the like operate, The operation of the lock disk rotation mechanism 11 is stopped. Even in such a case or when the present embodiment breaks down, the door can be opened and closed by the same mechanical movement as in the related art using only the door lock mechanism.

The configuration described above is one embodiment,
It is not limited to this. Therefore, as shown in FIG.
This is also achieved by a lock disk rotating mechanism 25 in which the spur gear 23 is fixed to the lock disk 3 instead of a. Further, in the present embodiment, the electromagnetic clutch 9 is provided between the motor 10 and the bevel gear 6b shown in FIG.
And a lock disk rotating mechanism 11 for connecting and releasing the rotational driving force of the motor 10 to the bevel gear 6a shown in FIG. 1 and the spur gear 23 shown in FIG.
Instead of 25, as shown in FIG. 4, this can be achieved by a lock disk rotating mechanism 29 for directly connecting / disconnecting the spur gear 23 and the worm gear 24. The lock disk rotating mechanism 29 includes a spur gear 23 and the spur gear 23.
The worm gear 24 meshes with the worm gear 24. The worm gear 24 is provided with a motor 26. The motor 26 is fixed to the first connecting member 28a. The first connecting member 28a is connected to the second connecting member 28b.
And are supported by hinges so as to be capable of turning forward and backward. The second connecting member 28b has an electromagnet 27 so as to be freely connected to and releasable from the first connecting member 28a, and is fixed to the frame 12. The worm gear 24 meshes with the spur gear 23 by connecting the first connecting member 28 a and the second connecting member 28 b by the electromagnet 27. The lock disk rotation mechanism 29 configured as described above transmits the rotational driving force of the motor 26 to the worm gear 24.
The lock disk 3 is rotated by transmitting the rotation to the spur gear 23 through the. The electromagnet 27 includes a second connecting member 28b and a first connecting member 28a.
Is an exemplary member for making it possible to freely connect and release, and is not limited to this.

Further, instead of the control circuit 16 using the first timer 19 and the first relay contact 19a as the delay device 20,
As shown in FIG. 5, this is also achieved by a control circuit 30 having a delay device 31 composed of a resistor 32 and a capacitor 33.

The operation of this embodiment in the above configuration will be described with reference to FIGS. FIG. 6 omits the lock disk rotation mechanism 11 shown in FIG. 1 for convenience of explanation.

As shown in FIG. 6 (a), when the door is open, the striker 2 of the door lock mechanism and the lock disk 3 are not engaged. In this state, the lock ratchet 4 does not come into contact with each of the limit switches 13 to 15, and as shown in FIG. 7A, each of the limit switches 13 to 15 is in a normal state (initial state). . Therefore, since the first limit switch 13 is in the OFF state, the main circuit 17 and the auxiliary circuit 18 of the control circuit 16 are turned off.
Is not energized, and the lock disk rotation mechanism 11 does not operate. In addition, each of the limit switches 13 to 15 and each of the timers 1
9 and 21 and the respective relay contacts 19a and 21a are in an initial state when the door is in an open state.

Next, when the door is closed to be in a half-lock state (so-called half-door state), as shown in FIG. 6B, the lock disk 3 bites into the striker 2 and the lock ratchet 4 is moved. The first limit switch 13 provided in the first notch 3a is engaged with the first notch 3a, and is turned on. Then, as shown in FIG. 7B, the auxiliary circuit 18 is energized, and the first timer 19 and the second timer 2
1 starts counting. Then, the first timer 19
After a lapse of 3 seconds, which is the set time, the main circuit 17 is energized,
The lock disk rotation mechanism 11 operates. That is, three seconds after the semi-locked state, as shown in FIG. 1, the motor 10 starts rotating, and the electromagnetic clutch 9 is connected.
By rotating the bevel gear 6a by transmitting the rotational driving force of the motor 10 to the bevel gear 6b via the electromagnetic clutch 9, the lock disk 3 is rotated while being bitten by the striker 2. As a result, it is possible to automatically transition from the half-locked state (so-called half-door state) to the completely locked state, and it is possible to save the trouble of manually closing the door. In addition, the door has been swiftly closed because the trouble of re-closing the door has conventionally been troublesome. However, since the trouble of re-closing the door manually is not required, there is no problem even if the door is loosely closed. By loosely closing the door in this manner, the door can be easily closed even in a state where the door is difficult to close. In addition, we can eliminate the cause of finger stuffing accidents that occur when closing conventional doors vigorously,
Safety can be ensured. In addition, since the doors of automobiles are gradually closed, the noise that occurs when the doors are closed is reduced, especially at midnight or in a quiet residential area. Will not be given. Further, when the door is manually closed to be in a completely locked state, the lock disk rotating mechanism 11 is not operated, so that the motor 10
Damage can be prevented.

Thereafter, when the door is completely closed by the operation of the lock disk rotating mechanism 11, FIG.
As shown in FIG. 5, the lock disk 3 bites into the striker 2, the lock ratchet 4 engages with the second notch 3b,
Second limit switch 14 provided in second notch 3b
Is turned off. Then, as shown in FIG. 7C, energization of the main circuit 17 and the auxiliary circuit 18 is prohibited,
The lock disk rotation mechanism 11 is stopped. That is, FIG.
As shown in (5), the rotation of the lock disk 3 is completed by stopping the rotation of the motor 10, releasing the electromagnetic clutch 9 and stopping the rotation of the bevel gear 6a.

As described above, even when the door is closed to be in a half-locked state (so-called half-door state), the door is automatically completely locked, so that the vehicle is not merely a tool for moving. In a modern era, it is possible to give the user a feeling of being able to use the car with a relaxed and calm feeling and operation.

On the other hand, during the transition from the half-locked state (so-called half-door state) to the completely locked state, that is, when the knob of the door is pulled up while the disk rotating mechanism 11 is operating, FIG. As shown in ()), the lock ratchet 4 interlocking with the door knob engages with the inner wall 12a of the frame 12, and turns off the third limit switch 15 provided on the inner wall 12a. Then, as shown in FIG. 7 (d), the lock disk rotation mechanism 11 is stopped by stopping the energization of the main circuit 17 and the auxiliary circuit 18. Thereby, in conjunction with the operation of pulling up the door knob, the rotation process of the lock disk 3 is temporarily interrupted, and the door lock assist device can be prevented from being damaged.

Further, during the transition from the half-locked state (so-called half-door state) to the completely locked state (when the lock disk rotating mechanism 11 is operated), foreign matter exists between the door and the body, and the lock disk 3 In the case of stopping, FIG.
As shown in (5), the lock ratchet 4 does not engage with the second notch 3b, and the second limit switch 14 remains in the ON state, so that the power supply to the main circuit 17 is continued. However, as shown in FIG. 7 (e), the second timer 21 sets the second relay contact 2 after the elapse of the set period of 5 seconds.
The lock disk rotating mechanism 11 is stopped by turning off the switch 1a and prohibiting energization of the main circuit 17. Thus, when there is a foreign object between the door and the body and the lock disk 3 stops, the rotation processing of the lock disk 3 is stopped, thereby preventing the door lock assist device from being damaged.

[0031]

According to the first aspect of the present invention, a door lock assisting device provided in a door lock mechanism that transitions from a semi-locked state to a fully locked state by rotating a lock disk when closing a door. A first detecting means for detecting a semi-locked state, a rotating means for rotating a lock disk, and a fully locked state when the semi-locked state is detected by the first detecting means. And a rotation control means for controlling the rotation means so as to be in a state. To completely lock a car door, a strong external force must be applied to the door, and the door must be closed vigorously.
In particular, when the door is closed while sitting in the seat of the car, it is difficult to apply force when closing the door, and the door is often in a half-locked state (a so-called half-door state). When the first detecting means detects the semi-locked state even in the semi-locked state as described above, the rotation control means operates, and the lock disk can be automatically rotated to the completely locked state. Thus, it is possible to save the trouble of opening and closing the door. Further, there is an effect that it is possible to prevent discomfort by eliminating noise when the door is closed.

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, there is provided a second detecting means for detecting a complete lock state, and the rotation control means is controlled by the second detecting means. When the completely locked state is detected, the rotating means is stopped. When the second detection means detects the completely locked state, the rotation control means operates to stop the rotation means, thereby providing an effect of preventing damage to the door lock assist device.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, when the rotation control means detects a half-locked state by the first detection means,
The rotation means is rotated after a predetermined period has elapsed. When the first detecting means detects the half-locked state, the turning control means operates, and when the turning means is turned after a predetermined period, the turning means is turned to the full locking state manually. Does not work, and the motor can be prevented from being damaged.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the movement of the door knob is detected during the transition from the semi-locked state to the fully locked state. A third detection means is provided, and the rotation control means stops the rotation means when the movement of the door knob is detected by the third detection means. When the third detection means detects the movement of the knob of the door, the rotation control means operates and stops the rotation means, thereby preventing the door lock assist device from being damaged when the door is opened. It works. Further, there is an effect that it is possible to avoid imposing a burden on the user due to the force of rotating the lock disk when opening the door.

According to a fifth aspect of the present invention, in addition to the configuration of any of the first to fourth aspects, a stop of the lock disk is detected during the transition from the half-locked state to the completely locked state. 4 rotation detecting means,
When the stop of the lock disk is detected by the fourth detection means, the rotation means is stopped. When the fourth detection means detects that the lock disk has stopped, the rotation control means operates, and by stopping the rotation means, the door lock assist device can be prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a front view of a door lock assisting device 1. FIG.

FIG. 2 is a diagram showing a control circuit 16 for controlling the lock disk rotation mechanism 11.

FIG. 3 is a front view of the door lock assisting device 1. FIG.

FIG. 4 is a front view of the door lock assisting device 1.

FIG. 5 is a diagram showing a control circuit 30 for controlling the lock disk rotation mechanism 11.

FIG. 6 is a diagram illustrating a relationship between each detection device and the door lock mechanism during a transition of the door lock mechanism from an open state to a completely locked state.

FIG. 7 is a diagram illustrating a relationship between a lock disk rotation control device and a current in the control circuit 16.

FIG. 8 is a diagram illustrating a conventional door lock mechanism.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 door lock assisting device 2 striker 3 lock disk 4 lock ratchet 11 lock disk rotation mechanism (bevel gear 6 a, bevel gear 6)
b, support shaft 8, electromagnetic clutch 9, motor 10) 25 Lock disk rotating mechanism (spur gear 23, worm gear 24, electromagnetic clutch 9, motor 10) 29 Lock disk rotating mechanism (spur gear 23, worm gear 24, motor 26) , Electromagnet 27, connecting member 28a
28b) 16 control circuit (first limit switch 13, second limit switch 14, third limit switch 15, first timer 19, second timer 21, first relay contact 19)
a, second relay contact 21a, power supply 22) 30 control circuit (first limit switch 13, second limit switch 14, third limit switch 15, second timer 21, second relay contact 21a, power supply 22, resistor 3)
2. Capacitor 33)

Claims (5)

[Claims] 1. A door lock assisting device provided in a door lock mechanism for transitioning from a semi-locked state to a fully-locked state by rotating a lock disk when closing a door, wherein the half-locked state is detected. First detecting means, rotating means for rotating a lock disk, and the rotating means so as to change from the half-locked state to the completely locked state when the half-locked state is detected by the first detecting means. A door lock assisting device having a rotation control means for controlling the door lock. A second detecting unit for detecting a completely locked state, wherein the rotation controlling unit stops the rotating unit when the second detecting unit detects the completely locked state. The door lock assisting device according to claim 1, wherein: 3. The rotation control unit according to claim 1, wherein when the first detection unit detects a half-locked state, the rotation control unit rotates the rotation unit after a predetermined period elapses. Or the door lock assisting device according to 2. 4. A third detecting means for detecting a movement of a door knob during a transition from a semi-locked state to a fully locked state, wherein the rotation control means detects the movement of the door by the third detecting means. 4. The door lock assisting device according to claim 1, wherein when the movement of the knob is detected, the rotation unit is stopped. 5. A device according to claim 1, further comprising: fourth detecting means for detecting a stop of the lock disk during a transition from the semi-locked state to the completely locked state. The door lock assisting device according to any one of claims 1 to 4, wherein when the stop is detected, the rotation unit is stopped.