JPH0747587Y2 - Automatic door closing device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a door of a vehicle, etc., when the door is closed to a half-latch position where a latch in the door lock and a striker on the vehicle body barely engage with each other. The present invention relates to an automatic door closing device that surely closes a door to a fully closed position by forcibly rotating a latch.

[Conventional technology]

For example, Japanese Utility Model Application No. 1-59 related to the applicant's utility model registration application
In the specification and drawings attached to the application for No. 120, a door moving device provided on the vehicle body and forcibly moving the door in the closing direction and the opening direction, and provided on the door, and the door is predetermined When the door lock is closed to the half-latch position, the door lock latch is forcibly rotated to close the door to the fully-closed position. And a lock release device for unlocking the door, which is provided near the driver's seat or near the door entrance, and can be moved in the direction to close the door by driving the door moving device by the door closing operation,
Further, there is disclosed an automatic door opening / closing device including an operating device that operates a door moving device in a door opening direction after a lock releasing device is unlocked by a door opening operation.

In this way, in addition to the door moving device, the closure is further provided such that when the door is closed, the door seal or the like is provided from the half-latch position, which is a so-called half-door state, to the fully-closed position. This is because a large resistance force due to acts on the door, and it is difficult to completely close the door only with the door moving device.

The closure ensures that the door lock latch reaches the half-latch position where it barely engages the striker,
Latch rotation means for forcibly rotating the latch by detection by an appropriate detection means is rotated from the original position toward the operating position by the forward rotation of the motor, and the latch is completely engaged with the striker. When the full latch position is reached and the fact is detected by appropriate detecting means, the reverse rotation of the motor causes the latch rotating means to return from the operating position to the original position and rotate, and the latch rotating means returns to the original position. When this is done, the return confirmation switch detects this and the reverse rotation of the motor is stopped.

As the return confirmation switch, a limit switch is used which is brought into contact with and actuated when the latch turning means returns to the original position.

[Problems to be solved by the device]

In the conventional device as described above, in the unlikely event that the return confirmation switch fails or malfunctions, the motor of the closure does not stop, current continues to flow, and the motor may burn.

An object of the present invention is to provide an automatic door closing device that solves the above problems of the conventional technology.

[Means for Solving the Problems]

In order to achieve the above object, the automatic door closing device of the present invention is provided on a door, and the latch rotation means is moved from the original position to the operating position by the forward rotation of the motor, so that the latch of the door lock is opened. The door is forcibly rotated in the full-latch direction to close the door from a predetermined half-latch position to a fully-closed position, and the latch rotating means is returned to the original position by the reverse rotation of the motor, and the door. The latch position detection switch that detects when the lock latch reaches the half-latch position that barely engages the striker on the vehicle body side and the full-latch position that completely engages the striker, and the latch rotation means in the closure are in the original position. The home position return confirmation switch that operates when the When electrically connected to the confirmation switch and the power supply and the latch position detection switch detects that the latch has reached the half-latch position, it reverses the motor of the closure and the latch has reached the full-latch position. When it is detected, the motor of the closure is reversely rotated, and when the home position return confirmation switch is actuated, an automatic door closing device comprising a controller for controlling the closure so as to stop the reverse rotation of the motor, The control device is provided with a timer for stopping the reverse rotation of the motor when the latch position detection switch measures the time when the latch reaches the full latch position and a preset time elapses. The feature is that it is provided.

[Action]

When the latch position detection switch detects that the latch has reached the full latch position, the closure motor is rotated in the reverse direction, the latch rotation means starts moving from the operating position to the original position, and the timer starts timing. To do.

After that, when the latch rotation means is returned to the original position and the return confirmation switch normally operates, the reverse rotation of the motor is stopped.

At the same time, if the return confirmation switch does not operate normally due to a failure or the like, the reverse rotation of the motor is stopped after the time set by the timer has elapsed.

Therefore, the motor does not continue to rotate in the reverse direction, which is safe.

〔Example〕

Hereinafter, an embodiment in which the present invention is applied to an automatic opening / closing device for a sliding door of an automobile will be described with reference to the accompanying drawings.

Although the present invention relates to a device for automatically closing a door, this embodiment also has a function of automatically opening the door.

In FIG. 1, (11) is a vehicle body, and (12) is a side surface of the vehicle body (11) after being translated slightly outward from a side surface of the vehicle body (11) by an appropriate guide means (not shown). It is a sliding door (hereinafter simply referred to as a door) that is opened rearward in parallel with and closed in the opposite direction.

A door moving device (A) for forcibly opening and closing the door (12) from the fully closed position to the fully open position and vice versa is provided on the lower surface of the floor of the vehicle body (11).

The door moving device (A) has a bracket (13) fixed to the inner surface of the front lower part of the door (12), an intermediate portion of which is fixed, and a part of the door moving device reciprocates in parallel with the movement path of the door (12). Both ends of the wire (14) so arranged are wound around the winding drum (15), and the winding drum (15) is normally and reversely rotated by the motor (16) via the speed reducer (17). By doing so, the wire (14) can be moved back and forth to open and close the door (12) as described above.

The door moving device (A) is provided in the vehicle body (11) and is a normally closed fully closed member that is opened by contacting the front end face of the door (12) when the door (12) is closed to the fully closed position. Switch (18)
And a normally-open full-open switch (19) which is provided on the vehicle body (11) and is configured to come into contact with the rear end of the bracket (13) of the door (12) to close when the door (12) is opened to the fully open position. )
It has and.

The door (12) can also be opened and closed manually. That is, the wire (14) integrally moves following the opening / closing movement of the door (12), and accordingly, the wire (14) is composed of the winding drum (15), the spur gear train, and the like, and is reversibly rotatable. The door (12) and the motor (16) are connected so that the motor (16) rotates in the reverse direction via the speed reducer (17).

The vehicle body (11) has a door (12) slightly opened from a half-latched position, which will be described later, and a predetermined power supply start position where a hand cannot be inserted between the front end of the door (12) and the vehicle body. Is provided with a power supply start switch (20) that abuts on the bracket (13) and is momentarily closed only when passing through in the closing direction.

(B) is near the driver's seat of the vehicle body (11) or the door (12)
The operation device provided near the doorway or both that is opened and closed by the push-button (21) of the seesaw type from the neutral position to the door-opening side and the door-closing side. The switch (22) and the door closing operation switch (23) can be selectively closed.

(24) is a battery as a power source.

(C) is a contactor, which is a pair of connector elements, which are provided so as to be retractable between the facing surface of the vehicle body (11) facing the front end surface of the door (12) and the front end surface of the door (12). (twenty five
a) (25b) (26a) (26b), and when the door (12) is between the substantially same position as the power feeding position and the fully closed position, the contacts (25a) and (26a) facing each other, (25b)
And (26b) contact each other, and the car body (11) to the door (12)
It is a power supply connector that enables power supply to.

The contacts (25a) (25b) on the vehicle body (11) side of the power feeding connector (C) and other electric elements on the vehicle body (11) side, for example, the motor (16) in the door moving device (A), Close switch (18), fully open switch (19), operating device (B), power supply start switch (20), battery (2)
4) is connected to the vehicle body side control device (40) via an appropriate wiring cord (39) (partly not shown).

Inside the door (12), the door (12) barely engages with a latch (not shown) in the door lock (27) and a striker (not shown) fixed to the vehicle body (11) side. When the door is closed to the half-latch position, the door (12) is forced by rotating the latch.
Closure (D) that closes the door to the fully closed position
And a solenoid that is linked to an open lever (28) of the door lock (27) and that unlocks the latch by rotating the open lever in the releasing direction to open the door (12). A drive-spring return type known actuator (E) is provided.

The closure (D) is the same as that disclosed in the specification and drawings attached to the application for the patent application No. 63-219632, and its main structure will be briefly described below. D) is a sector gear (32) that meshes with the pinion (31) through a speed reducer (30) and a pinion (31) fixedly fitted to the output shaft of the speed reducer (30) by rotating the motor (29) in the normal direction. Is rotated counterclockwise in FIG. 1, the closing lever (34) linked with the sector gear (32) is rotated in a required direction, and the closing lever (34) is rotated to rotate the door. The arm (35) extending above the latch in the lock (27) is rotated to rotate the latch to the full latch position where it is completely meshed with the striker, so that the door (12) is completely moved from the half latch position. Forcibly closed to the closed position So that the can Rukoto.

When the motor (29) is rotated in the reverse direction, the sector gear (32) and the close lever (34) are returned and rotated to their original positions, and the close lever (34) prevents the arm (35) of the latch from rotating. Stop at a position where it does not become.

Of the above configurations, the sector gear (32), cable (3
3), a latch turning means is formed by the closing lever (34).

When the open lever (28) of the door lock (27) is rotated in the releasing direction, the (36) is brought into contact with the open lever (28) to be actuated so that the door lock (27) is in the proper position. And a latch position detection switch for detecting that the latch has reached a half-latch position that barely engages the striker and a full-latch position that completely engages the striker when the door (12) is closed.

That is, when closing the door (12), immediately before the door (12) reaches the half-latch position, a pole (not shown) integrated with the open lever (28) causes the tip of one leg of the bifurcated latch. The pole and the open lever (28) are slightly rotated in the releasing direction, and immediately before the door (12) reaches the fully closed position, the pole hits the tip of the other leg of the latch. In contact with each other, the pole and the open lever (28) are slightly rotated in the releasing direction.

The latch position detection switch (36) is
2) When closing the first open lever (2
By detecting the rotation in the release direction of 8), it is detected that the latch has reached the half-latch position. Similarly, by detecting the rotation of the second open lever (28) in the release direction, the latch is released. Is to detect that the full latch position has been reached.

(38) is a return confirmation switch for detecting that the sector gear (32) which is a part of the latch rotating means has returned to the original position. When the sector gear (32) is stopped at the original position, The sector gear (32) is brought into contact with the sector gear (32) and opened, and when the sector gear (32) moves away from the original position, the sector gear (32) moves away from the sector gear (32) and closes.

Door (1) in the motor (29) in the closure (D), the latch position detection switch (36), the return confirmation switch (38), the actuator (E) and the power supply connector (C)
The contacts (26a) (26b) on the 2) side must be connected to the appropriate wiring cord (3
It is connected to the door side control device (41) via 9).

FIG. 2 is a block diagram showing, of the control device (43) of the automatic door opening / closing device shown in FIG. 1, only those relevant to the control of the closure (D).

That is, the control device for the door moving device (A) and the control device for the actuator (E) are not shown.

In FIG. 2, the same reference numerals as those in FIG. 1 are merely electrical representations of the above-mentioned members.

The control device (43) includes a vehicle body side control device (40) and a door side control device (41).

The vehicle body side control device (40) is connected to the closure power feeding circuit (44) connected to the vehicle body side contacts (25a) (25b) of the power feeding connector (C) and the battery (24), and at the same time A power supply circuit (44) and a door closing power supply circuit (45) connected to the power supply start switch (20) are provided.

The door closing power supply circuit (45) includes a timer (T1), and the operation of the power supply start switch (20) when the door (12) is closed to the power supply start position causes the timer (T
Power is supplied to the closure power supply circuit (44) until the preset time in 1) elapses.

The closure power supply circuit (44) is provided with a contact (25) of the power supply connector (C) when power is supplied from the power supply circuit (45) when the door is closed.
a) (25b), polarity for normal operation of the closure (D),
For example, the contactor (25a) is configured to supply power with a polarity such that the contactor (25a) is positive and the contactor (25b) is negative. Specifically, it is attached to the above-mentioned application No. 1-59120. It is preferable that the circuit configuration be as disclosed in the above specification and drawings.

The door side control device (41) includes a closure control circuit (47) connected to the door side contacts (26a) (26b), the latch position detection switch (36) and the return confirmation switch (38) in the power supply connector (C). ) And a motor (29) of this and the closure (D), and a normal rotation circuit (48) for supplying a current for normal rotation to the motor (39), as well as reverse rotation to the motor (39). And a reversing circuit (49) for supplying a current for supplying a current for

Each of these circuits (47) (48) (49) is specifically disclosed as a door-side control device in the specification and drawings attached to the above-mentioned application No. 1-59120. It is possible to add a timer (T2) (T3), which will be described later, to the same circuit configuration as the above.

In the closure control circuit (47), the door (12) is closed to a required position, and the door-side contacts (26a) (26b) of the power supply connector (C) come into contact with the vehicle-body-side contacts (25a) (25b). And the power feed start switch (20) is actuated, and as described above, the contact (25a) is positive and the contact (25a) is
After power is supplied so that b) becomes negative, the door (12)
Reaches the half-latch position and the latch position detection switch (36) operates for the first time, power is supplied to the forward rotation circuit (48) to rotate the motor (29) forward, and then the door (12).
Is at the fully closed position, that is, when the latch reaches the full latch position and the latch position detection switch (36) operates for the second time, almost simultaneously with stopping the power supply to the forward rotation circuit (48), the reverse rotation circuit (49 ) To rotate the motor (29) in the reverse direction, and when the return confirmation switch (38) detects that the sector gear (32) has returned to its original position, power is supplied to the reverse rotation circuit (49). Stopping motors (29)
To stop the reversal of.

Further, in the closure control circuit (47), the latch position detection switch (36) does not operate for the second time within a preset time after the latch position detection switch (36) operates for the first time. In this case, the timer (T2) that stops the normal rotation of the motor (29) and the latch position detection switch (36) are activated for the second time, and then the return confirmation is made within the preset time. A timer (T3) is provided for stopping the reverse rotation of the motor (29) when the switch (38) does not operate.

Next, with reference to the flow chart shown in FIG. 3, the operation relating to the closure (D) in the above embodiment will be described. It should be noted that other configurations, such as the operation of the door moving device (A) and the actuator (E), are not directly related to the present invention, and thus the description thereof is omitted.

By operating the door closing operation switch (23) in the operating device (B), the door moving device (A) (or manually),
The door (12) is moved in the closing direction (step S1).

On the way, the door-side contacts (26a) (26b) come into contact with the vehicle-body-side contacts (25a) (25b), and the door (12) reaches the power supply start position, and the power supply start switch (20). Is activated (O
N) (step S2), the timer (T1) is activated, that is, the time counting is started (step S3), and the power supply to the door (12) is started (step S4).

Next, when the door (12) reaches the half-latch position and the latch position detection switch (36) is activated (ON) for the first time (step S5), the timer (T3) is activated (step S6). ), The motor (29) is rotated forward (step S
7).

Then, by the operation of the closure (D), the latch is forcibly rotated in the full latch direction, and the door (12) is moved toward the fully closed position by a strong force.

During the forward rotation of the motor (29), the latch reaches the full latch position within the set time of the timer (T2) (also the door (12)
Has reached the fully closed position), latch position detection switch (36)
Is activated for the second time (ON) (step S8), the timer (T3) starts operating (step S9), and the motor (29)
When the normal rotation of is finished, it is reversed at the same time (step S1
0).

Then, the sector gear (32) and the close lever (34), which are the latch rotating means, are returned and rotated toward the original position.

After that, when the sector gear (32) reaches the original position and the return confirmation switch (38) is activated (ON) within the set time of the timer (T3) (step S11), the reverse rotation of the motor is normally stopped ( Step S12).

After that, when the set time of the timer (T3) has elapsed (step S13), the power supply to the door (12) is stopped (step S14).

In step S8, when the latch position detection switch (36) does not operate (ON) for the second time and the set time of the timer (T2) has elapsed (step S15), the process returns to step S9,
The timer (T3) is activated, and the motor (29) is rotated in the reverse direction (step S10), and the same operation as described above is performed.

In step S11, the return confirmation switch (38)
If the motor does not operate for some reason such as a failure, when the set time of the timer (T3) has elapsed (step S16), the reverse rotation of the motor (29) is stopped (step S17).

Therefore, the motor (29) does not continue to rotate in the reverse direction.

In this embodiment, in addition to the timer (T3), a timer (T1) is provided in the power supply circuit (45) for closing the door on the vehicle body side. It is doubly safe because the power supply is stopped and the rotation of the motor (29) is stopped.

[Effect of device]

As is apparent from the above, according to the present invention, if the reset confirmation switch fails or does not operate for some reason, the set time of the timer elapses.
Since the rotation of the motor of the closure is stopped, it is possible to prevent the motor from continuing to rotate or the motor from burning, which is safe.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a main part of an automobile equipped with an automatic door opening / closing device to which the present invention is applied, FIG. 2 is a block diagram showing a configuration of an electric circuit of a control device, and FIG. It is a flowchart which shows a state. (D) Closure (11) Vehicle body, (12) Sliding door (door) (20) Power supply start switch, (29) Motor (32) Sector gear (latch rotation means) (34) Close lever (latch rotation means) (36) Latch position detection switch, (38) Return confirmation switch (40) Vehicle side control device, (41) Door side control device (43) Control device, (44) Closure power supply circuit (45) Door closing power supply circuit, ( 47) Closure control circuit (48) Forward circuit, (49) Reverse circuit (T1) (T2) (T3) timer

Claims (1)

[Scope of utility model registration request] 1. A door lock is provided in a door, and a latch rotation means is moved from an original position to an operating position by a forward rotation of a motor to forcibly rotate a latch of a door lock in a full latch direction. Closing the door from the predetermined half-latch position to the fully-closed position and reversing the motor to return the latch rotation means to the original position, and the door lock latch barely interact with the striker on the vehicle body side. A latch position detection switch for detecting that the half-latch position for engagement and the full-latch position for complete engagement with the striker are reached, and an original position that operates when the latch rotating means in the closure is in the original position. It is electrically connected to the return confirmation switch, the closure, the latch position detection switch, the home position return confirmation switch and the power supply. , And when the latch position detection switch detects that the latch has reached the half-latch position, it rotates the motor of the closure forward, and when it detects that the latch has reached the full-latch position, it An automatic door closing device comprising a control device for controlling a closure so as to stop the reverse rotation of the motor when the motor is rotated in the reverse direction and the home position return confirmation switch is actuated. An automatic door characterized by having a timer for stopping the reverse rotation of the motor when a preset time elapses after the switch detects that the latch has reached the full latch position Closure device.