JP2827151B2 - Automatic door opening and 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 opening / closing device which enables a door of a vehicle or the like to be opened and closed by a door moving device provided with a drive source.

[0002]

2. Description of the Related Art In a conventional automatic door opening / closing device, a drive source such as a motor of a door moving device provided between a vehicle body and a door is directly operated by opening / closing an operation switch provided near a driver's seat. The door can be forcibly moved in the opening or closing direction by turning or reversing. Further, when the door is trapped between the door and the vehicle body while the door is being closed by the door moving device or the like and an emergency stop is required, the door moving device is operated by operating a door handle provided on the door. It is controlled so that it can be forcibly stopped.

[0003]

However, in the conventional automatic door opening / closing device as described above, the door moving device is forcibly stopped by operating the door handle, and then the operation switch is erroneously set. When the door closing operation is performed, the door is closed immediately, and there is a problem that the same pinching as before stopping is generated again.

The present invention has been made in view of the above-mentioned problems of the prior art, and in the event of an emergency stop of a door, an automatic opening / closing operation of a door in which reoccurrence of pinching is prevented by rejecting a closing operation of an operation switch. It is intended to provide a device.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) a door moving device that opens and closes a door provided on a vehicle body by a drive source, the door moving device being provided at an appropriate position on the vehicle body;
An automatic door opening / closing device comprising: an operation switch for opening and closing a door moving device; and a door stop detecting device for detecting an abnormal state and forcibly stopping the closing of the door moving device. Is activated,
A control circuit is provided for outputting a rejection signal for disabling the operation of closing the operation switch, and terminating the output of the rejection signal by opening the operation switch to enable the operation switch to be closed.

(2) The door stop detecting means is an overload detecting circuit for detecting an overload when the door is closed.

(3) The door stop detecting means is a handle switch for detecting operation of the door handle.

[0008]

If the door stop detecting means is operated while the door moving device is performing the door closing operation by the operation of closing the operation switch, a rejection signal for disabling the operation of closing the operation switch is output from the control circuit, and the operation switch is turned off. Door closing operation is rejected. Thereafter, the output of the rejection signal from the control circuit is terminated by the operation of opening the operation switch, and the door can be driven to close and the door can be closed by operating the operation switch to close the door.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, (1) is a car body, (2)
Is a sliding door (hereinafter simply referred to as a door) mounted on the side of the vehicle body (1) so as to be openable and closable. A sliding roller fixed to the inner side of the vehicle slides on a guide rail provided on the side of the vehicle body. It is movably supported and moves slightly outward from the side of the vehicle body (1) from the fully closed position indicated by 2B in FIG.
It opens and closes between a fully open position indicated by 2A that opens rearward in parallel with the side surface of (1).

On the lower surface of the step at the entrance of the vehicle body (1),
A door moving device (A) is provided which connects the vehicle body (1) and the door (2) and forcibly opens and closes the door (2) from a fully closed position to a fully opened position by driving a motor.

The door moving device (A) includes a door driving unit (4) having a door moving motor (3) capable of rotating forward and backward as a driving source;
It is hung between the output pulley provided on the door drive unit (4) and the front pulley (5) pivotally attached to the front of the back of the step to connect the door to the door (2) in a proper position and rotate the door moving motor (3). And a flexible belt (6) that opens and closes the door (2) by reciprocating along the direction of movement of the door (2). The door drive unit (4) incorporates an electromagnetic clutch (3a) for transmitting or disconnecting the rotation of the door moving motor (3) to the output pulley, and when the clutch (3a) is in the disconnected state. The door (2) can be freely opened and closed manually. When the clutch (3a) is connected, opening and closing of the door (2) is prevented unless the door moving motor (3) is driven.

When the door (2) reaches the fully closed position, the rear end of the door (2) engages with a striker (not shown) fixed to the vehicle body to close the door (2). A door lock (7) for holding in position is provided. As shown in FIG. 9, the door lock (7) is pivotally attached to the body (7a), and is in an open position where it is disengaged from the striker, a half-latch position that is in a half-door state that barely engages with the striker, and Latch pivotable to a fully engaged full latch position
(8), an open lever (12) for releasing the engagement of the latch (8) and the striker, and a pivot (7b) attached to the body (7a) and provided inside and outside the door (2). Door handle
Release lever connected to (10) via cable (11)
(9) and pivotally connected to the body (7a) by the shaft (24),
(7) The operation of the close lever (25) that can be pushed toward the full latch position and the operation of the open lever (12) when the latch (8) reaches the half latch position are detected, and the half latch state is detected. Door switch (13) for detecting the The release lever (9) is released via the cable (11) by the operation of the door handle (10), and pushes the open lever (12) in the release direction so that the latch (8) and the striker are disengaged. Disengage and allow the door (2) to open.

Inside the door (2), a door lock (7) is connected, and when the door (2) is closed to the half door position, the latch (8) is opened.
Is forcibly rotated from the half latch position to the full latch position to forcibly close the door (2). Closure device
(B), as shown in FIGS. 6 to 8, a base plate (14) fixed below the door (2), a closure motor (15) fixed to the base plate (14) and capable of rotating forward and reverse, A pinion (16) that can be rotated forward and reverse through a speed reduction mechanism by forward and reverse rotation of the closure motor (15), and a shaft (17) on the base plate (14)
The sector gear (18) which is pivotally connected to the pinion (16) and is rotatable between a neutral position shown in FIG. 6, a closure position shown in FIG. 7, and an open position shown in FIG.
And a neutral switch (19) for detecting the neutral position of the sector gear (18) by contacting the cam surface (18d) of the cam plate (18a) fixed to the sector gear (18), and opening and closing the closure position. And a reversing switch (20) for detecting the position.

The bent pieces (18b) and (18c) formed on the cam plate (18a) which rotates integrally with the sector gear (18) are connected to the door lock (18) via cables (21) and (22). 7) Release lever
(9) It is connected to the closing lever (24). When the sector gear (18) rotates from the neutral position to the closure position, only the cable (22) is pulled, and the closing lever (24) of the door lock (7) is rotated in the direction shown by the arrow in FIG. Then, the latch (8) is forcibly rotated from the half latch position to the full latch position. When the sector gear (18) is turned from the neutral position to the open position, only the cable (21) is pulled, and the open lever (12) is turned in the release direction via the release lever (9). Then, the latch (8) and the striker are released so that the door (2) can be opened.

FIG. 4 is a control circuit diagram of an embodiment of the present invention, and FIG. 5 is a block diagram. In FIG. 4, (25) is provided in the vicinity of the driver's seat of the vehicle body (1). An operation switch of a type having open and close contacts for opening and closing drive operation and returning to a neutral position when not operated, (26) is a vehicle body (1) opposed to the front end face of the door (2). ), The vehicle body side connector provided on the center pillar, (28)
The battery as a power source provided on the vehicle body side, (29)
Check switch to detect the fully open position of door (2), (30)
Is a door movement control circuit for controlling the door movement device (A) according to each situation, and (R4) (R5) (R6) (R7) (R8) are door movement motors.
This is the driving relay of (3). (27) is the body side connector
The door-side connector provided on the door (2) side facing the (26), the door (2) comes into contact with the vehicle-body-side connector (26) from a point before the half-latch position, and the vehicle (1) From door
(2) Enable power supply. (31) is a closure control circuit provided on the door (2) side to control the closure device (B) according to each situation; (32) is a handle switch for detecting operation of the door handle (10); R1 and R2 are relays for driving the closure motor (15).

The closure control circuit (31) includes a door switch
(13) When the half latch position of the latch (8) is detected, the closure motor is rotated to rotate the sector gear (18) of the closure device (B) from the neutral position to the closed position.
(15) is controlled in reverse, and the reversing switch (20) detects movement of the sector gear (18) between the closed position and the open position, thereby reversing the sector gear (18) to the neutral position. 15) is inverted.
The sector gear is driven by the closure motor (15).
While (18) is driving toward the closure direction,
An overload detection circuit (32) detects that the handle switch (32) operates the door handle (10), or detects that the door (2) is pinched between the vehicle body and the door closes and the door closes. When the door stop detection means) (30a) is activated,
Inverts the closure motor (15) so that the sector gear (1
8) Return to the neutral position.

The door movement control circuit (30) includes an operation switch (2
By opening / closing operation of 5), the door moving motor (3) of the door moving device (A) is controlled to rotate forward / reverse, and the belt (6) rotates along the opening / closing direction of the door (2), so that the door ( 2) Opening and closing can be performed, and in each state, the operation switch (25)
Rejection signal (SG2), which rejects the door opening operation, and a close rejection signal (S,
G3), end hold signal (TS4), end operation delay signal (TS3)
And a timer (TS7).

The open reject signal (SG2) disables the operation of the operation switch (25) by detecting the fully open position of the door (2) by the check switch (29),
The operation is ended by the door closing operation of (25).

The closing rejection signal (SG3) indicates that the vehicle body side connector (26) and the door side connector (26)
When the power is supplied to the inside of the door (2) by contact with the (27), the door switch (13) detects the closed position of the door (2),
When the neutral switch (19) detects the neutral position of the sector gear (18), the operation is started, and the operation is terminated by opening the operation switch (25). In addition, during the door closing operation of the door moving device (A), the handle switch (door stop detecting means) (32) detects the operation of the door handle (10), or the overload detecting circuit (door stop detecting means) (30a ) Is detected when pinching is detected and overload such as current is detected, the operation switch (25) is refused to close the door, and then the signal is generated by opening the operation switch (25). finish.

The end hold signal (TS4) is activated for a predetermined time after the closure motor (15) stops at the door closed position. The end operation delay signal (TS3) is
After the stop of (3), the clutch (3a) is kept in the connected state for a predetermined time. Timer (TS7) is a closure device
The (B) sector gear (18) is started for a predetermined time simultaneously with the reverse rotation start of the closure motor (15) so as to drive from the neutral position to the open direction, and if the door switch (13) is inverted during the start, the clutch is activated. (3a) is excited, and if not reversed, the sector gear (18) is returned to the neutral position.

Next, each operation of the embodiment of the present invention will be described with reference to the flowcharts shown in FIGS. FIG. 2 shows a flow of the door closing operation. With the door (2) in the fully open position, the operation switch (25) is turned on in step (S1).
If the open reject signal (SG2) is activated in (S2), the clutch (3a) of the door moving device (A) is connected, and the door moving motor (3) is controlled to rotate in the reverse direction. Then, the door (2) is closed by the door closing drive of the door moving device (A). At that time, if the door (2) is closed from the fully open position and the check switch (29) finishes detecting the fully open position of the door (2) in step (S3) and reverses the detection state, an open reject signal The output of (SG2) ends.

Next, in step (S4), the door moving device
While the door (2) is closed by (A), the vehicle body and the door
(2) pinch occurs and the overload detection circuit (30
a) detect overload or handle switch
If (32) detects operation of the door handle (10), the process proceeds to step (S5) to immediately activate the close rejection signal (SG3), reject the closing operation of the operation switch (25), and release the door. When the moving motor (3) is stopped, the clutch (3a) is disconnected and the door (2) is immediately stopped at that position. In step (S6), if the operation switch (25) is once opened to remove the entrapment, the close rejection signal (SG3) ends. Then, again in step (S7), the operation switch (25)
When the door is closed, the clutch (3a) is connected, and the door moving motor (3) is started, and the door (2) is closed.
Can be closed.

Thereafter, the entrapment is removed and the door (2)
If there is no abnormality in the closing of the door, go to step (S8),
The neutral switch (19) is the sector gear of the closure device (B)
(18) If the neutral position is detected and the door (2) moves to the half door position and the door switch (13) detects the half latch position of the latch (8), the door moving motor (3) At the same time, the end operation delay signal (TS3) of the clutch (3a) is activated to control the rotation of the closure motor (15) in the reverse direction, and the sector gear (18) of the closure device (B) is set to the neutral position shown in FIG. By turning the latch (8) from the half-latch position to the full-latch position by rotating the close lever (25) of the door lock (7) via the cable (22) by rotating the latch (8) from the position to the close position shown in FIG. Forced to move. When the closure motor (15) starts rotating in the reverse direction, the end operation delay signal (T
S3) ends, and the clutch (3a) is disconnected.

Next, in step (S9), the inversion switch (20)
If the motor detects the closure position of the sector gear (18), the closure motor (15) reverses and the sector gear (1
8) Return and rotate toward the neutral position. If the neutral switch (19) detects the return of the sector gear (18) to the neutral position, the closure motor (15) stops, and
The end holding signal (TS4) is activated, and after a predetermined time elapses, the end holding signal (TS4) stops.

Then, in step (S10), the operation switch
If (25) returns to the neutral position from the closing operation state, the close rejection signal (SG3) is activated in step (S11), and the subsequent closing operation of the operation switch (25) is rejected, and the door moving motor (3) does not start in the reverse direction, which is the door closing direction.

FIG. 3 shows the flow of the door opening operation. If the operation switch (25) is operated to open the door and the check switch (29) does not detect the fully opened state of the door (2), step (12)
Outputs a close rejection signal (SG2) and returns to step (S13).
If the door switch (13) detects the closing of the door (2) in step (S14) and if the neutral switch (19) detects the neutral position of the sector gear (18) in step (S14), the operation switch (25) The activation of the close rejection signal (SG3) ends by the opening operation.

Next, the closure motor (15) of the closure device (B) starts rotating forward, and the sector gear (18) moves from the neutral position toward the open position shown in FIG. The lever (8) is disengaged from the striker by moving the open lever (12) in the release direction via the, and the door (2) can be moved in the door opening direction.

Simultaneously with the normal rotation of the closure motor (15), the timer (TS7) for monitoring the state of the door switch (13) is activated for a set time, and the neutral switch (19) is activated within the set time of the timer (TS7). If it is reversed and the detection state of the door switch (13) is reversed, the clutch (3a) is connected and the timer (TS7) is canceled in step (S15).

At this time, for example, if the vehicle is parked in a state of being inclined in the door opening direction, the engagement between the door lock (7) and the striker is released, and the door (2) can be freely opened. As soon as it becomes, it starts moving immediately in the opening direction and the closure device
Before (B) returns to the neutral position, there is a possibility that the vehicle-side connector (26) and the door-side connector (27) may be disconnected and power supply to the door (2) may be stopped. At that time, by connecting the clutch (3a),
(2) and the door drive unit (4) are connected, and the door (2) can restrain the movement in the opening direction unnecessarily.
(2) is maintained in a state where the vehicle-side connector (26) and the door-side connector (27) are connected, and the closure device (B) can be reliably returned to the neutral position.

The sector gear (18) moves to the open position, and in step (S16), the reversing switch (20) is turned on.
When the movement of the (18) to the open position is detected, the closure motor (15) is reversely rotated to return the sector gear (18) to the neutral position, and the neutral switch (19) is turned on by the neutral switch (19).
8) When the return to the neutral position is detected, the rotation of the closure motor (15) is stopped.

Next, the door moving motor (4) is immediately driven to rotate forward, and the door (2) is moved in the door opening direction by the door moving device (A). In step (17), check switch (2
If 9) detects the fully open position of the door (2), the end operation delay signal (TS3) is activated. Next, the end operation delay signal (TS
When the clutch (3a) is disengaged at the same time as the completion of 3), the door opening operation of the operation switch (25) is stopped, and the operation returns to the neutral position.
The open reject signal (SG2) is activated, and the subsequent operation of opening the operation switch (25) is rejected.

In the above embodiment, the door (2) is a sliding door, but the present invention can be applied to a swing door.

[0033]

As described above, according to the present invention, the rejection signal for disabling the operation of closing the operation switch is output by operating the door stop detection means, and the rejection signal is generated by the operation of opening the operation switch. By providing a control circuit that terminates the output and enables the operation switch to close the door, during an emergency stop while the door is closed, the door moving device can be operated even if the operation switch is closed once unless the operation switch is once opened. Cannot be driven to close the door, it is possible to prevent reoccurrence of pinching.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part of an automobile provided with an automatic door opening / closing device to which the present invention is applied.

FIG. 2 is a flowchart showing a flow of an operation from a fully open position to a fully closed position of the door.

FIG. 3 is a flowchart showing a flow of operation from a fully closed position to a fully opened position of the door.

FIG. 4 is a control circuit diagram of one embodiment of the present invention.

FIG. 5 is a block diagram of a main part.

FIG. 6 is a front view of the closure device when the sector gear is at a neutral position.

FIG. 7 is a front view of the closure device when the sector gear is at a closed position.

FIG. 8 is a front view of the closure device when the sector gear is at an open position.

FIG. 9 is a perspective view of a door lock.

[Explanation of symbols]

 (A) Door moving device (B) Closure device (3) Door moving motor (7) Door lock (8) Latch (10) Door handle (13) Door switch (15) Closure motor (19) Neutral switch (25) Operation Switch (29) Check switch (30) Door movement control circuit (30a) Overload detection circuit (door stop detection means) (31) Closure control circuit (32) Handle switch (door stop detection means) (TS4) End of neutral switch Hold signal (SG3) Close reject signal (SG2) Open reject signal (TS7) Timer

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E05B 65/20-65/42 B60J 5/00

Claims (3)

(57) [Claims] 1. A door moving device for opening and closing a door provided on a vehicle body by means of a drive source, an operation switch provided at an appropriate position on the vehicle body for opening and closing the door moving device,
A door stop detecting means for detecting an abnormal state and forcibly stopping the door closing drive of the door moving device; Automatic opening / closing operation of a door, characterized by providing a control circuit for outputting a rejection signal for disabling the operation, and providing a control circuit for terminating the output of the rejection signal by opening the operation switch and enabling the operation switch to close the door. apparatus. 2. The automatic door opening / closing operation device according to claim 1, wherein the door stop detection means is an overload detection circuit that detects an overload when the door is closed. 3. The automatic door opening / closing operation device according to claim 1, wherein the door stop detecting means is a handle switch for detecting an operation of a door handle.