JP2544139Y2 - Automatic door closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door closing device for a door of a vehicle or the like which can be closed by a door moving device by operating an operation switch provided in a driver's seat.

[0002]

2. Description of the Related Art A conventional automatic door closing device is provided with a door moving device for transmitting rotation of a motor to a door via a speed reduction mechanism and forcibly moving the door in a closing direction. By operating the operation switch provided, the motor of the door moving device is rotated to forcibly move the door from the open state to the closing direction, and when the door reaches a position close to the fully closed position, a pause switch is provided. , The door is temporarily stopped from the viewpoint of safety, and the door can be moved to the fully closed position by operating the operation switch again.

[0003]

However, the conventional automatic door closing device, for example, when the vehicle is stopped on an uphill or the like, when the door is temporarily stopped during the closing operation, When the door moves from the temporary stop position in the opening direction due to its own weight, wind or contact with the human body, and then operates the operation switch again to operate the door moving device, the door again reaches the temporary stop position. Then, the stop switch is activated, the door is temporarily stopped again, and the operation is repeated many times, a so-called chattering phenomenon occurs, and the door may not be able to be completely closed. is there.

The present invention has been made in view of the above-mentioned problems of the prior art, and in a door automatic closing apparatus in which the door is temporarily stopped for safety immediately before the door is fully closed, a temporary stop of the door is provided. It is an object of the present invention to provide an automatic door closing device that can eliminate abnormal operation of the device when the door moves due to its own weight or external force when stopped, that is, the chattering phenomenon.

[0005]

In order to achieve the above object, an apparatus according to the present invention includes a door moving device for forcibly moving a door at least in a closing direction, an operation switch provided near a driver's seat, and a door. A door having a function of detecting the position of the door before the fully closed position of the door and stopping the operation of the door moving device when the moving device is operated and the door is operated in the closing direction; In the automatic closing device of the above, it is provided that a control circuit for storing the fact that the temporary stop switch is operated first and disabling the second and subsequent operations of the temporary stop switch until the memory is released is provided. Features.

[0006]

The door is moved in the closing direction by the door moving device by the closing operation of the operation switch, and when the door reaches the temporary stop position before the fully closed position, the temporary stop switch is operated and the control circuit is operated. While storing this, the operation of the door moving device is stopped, and the door is stopped at that position.

When the operation switch is turned on again after the door is temporarily stopped, the door moving device is operated again, and the door is moved toward the fully closed position. At that time, for example, if the car is stopped on an uphill or the like and the door is temporarily stopped and the door has moved in the fully open direction due to its own weight, the pause switch is operated again. The control circuit remembers that the pause switch was previously activated and overrides the activation of the second pause switch, so the door moves to the fully closed position without being stopped again at the paused position Can be done.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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. In FIG. 4, (11) is the body of the automobile, (12)
Is a slide door that is slightly moved outward from the side surface of the vehicle body (11) by appropriate guide means (not shown), and then opens rearward in parallel with the side surface of the vehicle body (11) and closes in the opposite direction.
(Hereinafter simply referred to as a door). A door moving device (A) for forcibly opening and closing the door (12) from the fully closed position to the fully open position and in the opposite direction is provided on the lower surface of the floor portion of the vehicle body (11).

In the door moving device (A), an intermediate portion is fixed to a bracket (13) fixed to the front lower inner surface of the door (12), and a part thereof reciprocates in parallel with the movement locus of the door (12). Both ends of the wire (14) that is rotated are wound around a winding drum (15), and the winding drum (15) is moved by a door moving motor (15) through a reduction gear (17). By rotating forward and reverse,
By reciprocating the wire (14), the door (12) can be opened and closed as described above.

When the door (12) is located between the fully open position and at least a half latch position to be described later, the vehicle (11) facing the front end face of the door (12) A door switch (18) that operates in contact with the front end face is provided.

Reference numeral (20) denotes a temporary stop switch provided on the vehicle body (11). When the door (12) is closed by the door moving device (A), it is located at a position about 20 to 30 cm before the fully closed position. , Door (1
The door moving device (A) is stopped by abutting on the front end face of (2) to instantly close and operate, thereby acting to stop the door (12) once at that position. During this pause,
The circuit of the door moving motor (16) is closed, and the motor brake is operated to apply a braking force so that the door (12) does not move unnecessarily.

An operation switch (21) is provided near the driver's seat of the vehicle body (11). The operation switch has an opening operation switch and a closing operation switch. By operating each switch, the door moving device (A) is operated. ) Can be actuated in the opening and closing directions. (24) is a battery as a power supply.

(25) A vehicle body facing the front end surface of the door (12)
A power supply connector provided so as to be able to protrude and retract from the opposing surface of (11) and the front end surface of the door (12). The contact with the door-side connector (26a) allows power supply from the vehicle body (11) to the door (12).

In the door (12), a door (12) is provided with a door lock.
When the latch (not shown) in (27) and the striker (not shown) fixed to the vehicle body (11) barely engage with each other, the latch is forcibly released when the door is closed to a half-latch position, which is a so-called half-door state. The door (12) is linked to a closure (B) that closes the door (12) to the fully closed position and an open lever (28) of the door lock (27) by turning the open lever in the release direction. By moving
An actuator (C) is provided which can release the restraint of the latch and open the door (12).

The closure (B) is a closure motor (29)
, The sector gear (32) meshing with the pinion (31) is rotated via a speed reduction mechanism (30) and a pinion (31) fixedly fitted to the output shaft thereof, and this sector gear is rotated. With the rotation of (32), the closing lever (34) linked to the sector gear (32) is rotated in the required direction with the cable (33), and the door lock ( Arm (3) extending above the latch at (27)
5), the latch is rotated to the full latch position where the latch is completely engaged with the striker, whereby the door (12) can be forcibly closed from the half latch position to the fully closed position. .

When the closure motor (29) is rotated in the reverse direction, the sector gear (32) and the closing lever (34) are returned to their original positions and rotated. (36) is a half-latch switch provided on the door lock (27), which detects the position of the latch when the door (12) reaches the half-latch position and turns on.

In FIG. 1, (37) is a parking switch which is turned on when a parking brake (not shown) is operated by braking operation, (38) is a vehicle speed switch which detects a running state of the vehicle, and (39) ) Is a timer that operates for a preset time from when the pause switch (20) is turned on, (4)
Reference numeral 0) denotes a control circuit for controlling the door moving motor (16) by the operation switch (21), and includes a door switch (18), a pause switch (20), a parking switch (37), and a vehicle speed switch (3).
8) The door movement motor (16) is controlled based on the ON / OFF signal of the timer (39).

The control circuit (40) includes a pause switch (2
When (0) is operated once, the fact is memorized, the timer (39) is operated, and until the set time of the timer (39) elapses, the pause switch (20) is operated for the second time and thereafter. At the same time, control is performed to invalidate the operation of the operation switch (21) when the parking switch (37) or the vehicle speed switch (38) is operating.

Next, the operation of this embodiment will be described with reference to the flowcharts shown in FIGS. When the operation switch (21) is operated to close the door in step (S1), the parking switch (37) performs the braking operation of the parking brake, the vehicle speed switch (38) indicates the stopped state of the vehicle, and the door switch (18). ) Detects the open state of the door (12), the door moving motor (16) starts operating in step (S2). When the door movement motor (16) operates, the door
(12) is moved in the closing direction by the door moving device (A) unless the half latch switch (36) is turned on in step (S3).

When the door (12) reaches about 20 to 30 cm before the fully closed position, the pause switch (20) is instantaneously activated in step (S4). When the pause switch (20) is operated, the process proceeds to step (S5), the control circuit (40) memorizes this and sets a flag, and the timer (36) starts operating in step (S6), At the same time, the door moving motor (16) of the door moving device (A) stops (step S7), and the door (12) stops just before the fully open position. In the temporary stop state, the motor brake is operated so that the door (12) does not move unnecessarily (step S8).

After the door (12) is paused, the next step
In (S9), the operation of the operation switch (21) is temporarily stopped, and then,
When the operation switch (21) is closed again in step (S10), if the time is within the set time of the timer (39), the process proceeds to step (S12), and the door moving motor (16) is operated immediately. Starting, the door (12) is moved toward the fully closed position. At that time, for example, if the car is stopped on an uphill or the like and the door (12) has moved in the fully open direction from the temporary stop position against the braking force of the motor brake, step ( In S13), the pause switch (20)
Operates again to try to pause the door (12) again, but the control circuit (40) has previously operated the pause switch (2).
Since the operation of (0) is stored, the operation of the second stop switch (20) is invalidated, and the door (12) can be moved in the fully closed position.

In step (S13), if the temporary stop switch (20) is not operated, the door (12) can be moved in the direction of the fully closed position as usual. In other words, the control circuit (40)
Stores the first operation of the pause switch (20), the door (12) can always be moved in the fully closed position direction regardless of the subsequent operation of the pause switch (20). .

When the door (12) passes through the power supply start position and is closed to the half-latch position, and the half-latch switch (36) is activated in step (S14), the closure motor of the closure (B) is activated in step (S15). (29) operates, the sector gear (32) of the closure (B) is rotated, the cable (33) is pulled, and the rotation of the close lever (34) causes the latch to move toward the full latch position. The door (12) is forcibly rotated, and the door (12) is reliably moved toward the fully closed position by the force of the closure (B). Next step (S1
In step (6), if the control circuit (40) stores the suspension flag, the suspension flag is cleared in steps (S17) and (S18), and the timer (39) is reset to close the suspension flag.
(B) is returned to the original position, and the operation of the door moving motor (16) is stopped.

In step (S11), if the time set by the timer (39) elapses and the time is up, the process proceeds to steps (S20) and (S21) to clear the pause flag and reset the timer (39). Reset. After resetting the timer (39)
In the next step (22), the door moving motor of the door moving device (A)
By starting the operation of (16), the door (12) is moved toward the fully closed position. In step (S23), if the temporary stop switch (20) does not operate again, step (S1
In 4), the door (12) is forcibly moved to the fully closed position by the closure (29).

In step (S23), the vehicle stops on an uphill or the like, and the door (12) moves from the temporary stop position to the fully opened position by its own weight, and the door moving device (A) moves the door (12). When is moved, pause switch (20) again
Is activated, the control device (40) again sets a suspension flag, memorizes the operation of the suspension switch (20), activates the timer (30), and operates the door movement motor (16). Is stopped, the door (12) is temporarily stopped, and the process continues from step (S8).

In the above-described embodiment, the timer (39) is used as a means for canceling the storage of the fact that the temporary stop switch is operated first.
Alternatively, the memory state may be released by using the door switch (18) or the half-latch switch (36) in parallel with the operation thereof.

[0027]

[Effects of the Invention] As described above, in the present invention, when the temporary stop switch is operated once, the second and subsequent operations are invalidated by the control device, so that the vehicle is stopped on an uphill or the like. When the door is temporarily stopped, the door moves in the opening direction from the temporary stop position due to its own weight or the like, and when the door is again moved toward the closed position by operating the operation switch, the door is temporarily stopped again. The door can be securely closed to the fully closed position without being stopped at the position, eliminating the so-called chattering phenomenon in which the door repeatedly moves between the paused position and the slightly opened position. Can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a part of a flowchart showing an operation state.

FIG. 3 is a continuation of the flowchart in FIG. 2;

FIG. 4 is a schematic perspective view of a main part of an automobile having an automatic door closing device to which the present invention is applied.

[Explanation of symbols]

(A) Door moving device (11) Body (12) Door (16) Door moving motor (18) Door switch (20) Pause switch (21) Operation switch (24) Power supply (29) Closure motor (37) Parking switch (39) Timer (40) Control circuit

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-36480 (JP, A) JP-A-3-36389 (JP, A) JP-A-62-296081 (JP, A) JP-A 5-36 10067 (JP, A) JP-A-63-125790 (JP, A) JP-A-62-155185 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] A door moving device for forcibly moving the door at least in a closing direction, an operation switch provided in the vicinity of a driver's seat, and a door moving device for operating the door in a closing direction by operating the door moving device. A door switch having a function of detecting the position of the door just before the fully closed position and stopping the operation of the door moving device; and a device for automatically closing the door. And a control circuit for invalidating the second and subsequent operations of the temporary stop switch until the memory is released.