JP2527802Y2 - Automatic door opening device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device for automatically opening a door, and more particularly, to an automatic opening device which can be easily unlocked when a door is opened. The present invention relates to a door device.

[Conventional technology]

2. Description of the Related Art Conventional vehicle doors, hoods, trunk lids, fuel lids, and building doors (hereinafter, collectively referred to as doors) are provided between a door and a support such as a vehicle body that supports the door so that it can be opened and closed. In some cases, an elastic seal member is provided to achieve airtightness and liquid tightness inside and outside the door when the door is closed.

[Problems to be solved by the invention]

When the conventional door device as described above is provided with an actuator for releasing the locked state of the lock device, and the door can be automatically opened, the door is fully closed and the lock device is locked. When the elastic member of the seal member is compressed, the repulsive force of the elastic member, namely, the seal reaction force,
The door is biased to open.

In such a state, since the urging force is directly applied to the lock device, a large operation force is required to release the locked state of the lock device, and the actuator must be strong.

The present invention has been made in view of the above-described problems of a conventional automatic door opening device, and provides an automatic door opening device that can easily and easily unlock the lock device at an initial stage of opening the door. It is intended to be.

[Means for solving the problem]

To achieve the above object, the automatic door opening device of the present invention
When the door (12) is locked in the fully closed position by the lock device (27), the elastic member provided between the door (12) and the support (11) that supports the door (12) so that it can be opened and closed freely. Door (12) by repulsion
In the door device in which the door is biased in the opening direction, either the door (12) or the support (11) is moved to the overstroke position where the door (12) is moved in the closing direction from the fully closed position. Driving means (D) for forcibly moving;
An overstroke detection switch (37) for detecting that the door (12) has reached the overstroke position, an actuator (E) for releasing the locking state of the lock device (27), and a door opening operation switch (22). By actuating the drive means (D), the door (12) is moved from the fully closed position in the closing direction, the door reaches the overstroke position, and the overstroke detection switch (37) is activated. And a control device (42) for controlling the driving means (D) and the actuator (E) so as to operate the actuator (E).

As the driving means (D), it is preferable to share the driving means used in the automatic door closing device.

[Action]

With the door (12) closed, open the door operation switch (2
When 2) is actuated, the drive means (D) is actuated by the control device (42), and the door (12) is forced in a direction to further close from the fully closed position against the repulsive force of the elastic body. It is moved to.

When the door (12) reaches the overstroke position and the overstroke detection switch (37) is activated,
The actuator (E) is operated by the control device (42), and the lock device (27) is released.

At this time, the door (12) is located at the overstroke position closer to the closing direction than the fully closed position by the driving means (D), and the repulsive force of the elastic body acts on the lock device (27) at all. Since there is no lock device (27), it can be released with a slight force.

Therefore, the actuator (E) does not need to be strong, and can be small and low output.

〔Example〕

Hereinafter, an embodiment in which the present invention is applied to an automatic opening and 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 opening a door, in this embodiment, a function for automatically closing the door is provided.

The configuration shown in FIG. 1 and the circuit configuration excluding the configuration shown by the thick line in FIG.
-59120 (filed on May 24, 1999), which is almost the same as that disclosed in the specification and drawings attached to the application,
The present invention is characterized by adding a circuit configuration shown by a thick line in FIG. 2 to these configurations.

In FIG. 1, (11) is a car body, and (12) is
After being slightly moved outward from the side surface of the vehicle body (11) by appropriate guide means (not shown), the slide is a door that opens rearward in parallel with the side surface of the vehicle body (11) and closes in the opposite direction. A door (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).

This door moving device (A) is the same as the well-known device disclosed in Japanese Utility Model Laid-Open No. 59-121406, and its main structure will be briefly described. The middle part is fixed to the bracket (13)
The two ends of the wire (14), which partially reciprocate in parallel with the movement trajectory of the door (12), are wound on the winding drum (1).
5), and take up the winding drum (15) with the motor (1).
6), the wire (14) is reciprocated by rotating forward and backward through the speed reducer (17), and the door (12)
Can be opened and closed as described above.

The door moving device (A) is provided on the vehicle body (11), and when the door (12) is located between a fully closed position and at least a half latch position described later, a front end surface of the door (12) is provided. A normally closed door switch (18), which is opened in contact with the door, and a bracket (13) for the door (12), which is provided on the vehicle body (11) and is opened when the door (12) is fully opened.
And a normally open full-open switch (19) which is brought into contact with the rear end and closed.

In the vehicle body (11), the door (12) is at a position slightly opened from a half latch position to be described later, and a predetermined power supply start position at which a hand cannot be inserted between the front end of the door (12) and the vehicle body. A power supply start switch (20) is provided which abuts on the bracket (13) and closes instantaneously only when the vehicle passes in the closing direction.

(B) near the driver's seat of the vehicle body (11) or the door (1)
By pushing the seesaw push button (21) from the neutral position to the door opening side and the door closing side with the operating device provided near the entrance and the entrance opened or closed by 2), as shown in FIG. The opening operation switch (22) and the closing operation switch (23) having a common movable contact can be selectively closed.

 (24) is a battery as a power supply.

(C) is the vehicle body (11) facing the front end face of the door (12)
And a contact (25) as a pair of connector elements, each of which is provided on the opposite surface of the
a) (25b) (26a) (26b), when the door (12) is located between the substantially same position as the power supply start position and the fully closed position, the contacts (25a) and (26a) facing each other. ,(twenty five
b) and (26b) contact each other, and the door (1
This is a power supply connector that enables power supply to 2).

The contacts (25a) and (25b) on the vehicle body (11) side of the power supply connector (C) and other electric elements on the vehicle body (11) side, for example, the motor (16) and the door in the door moving device (A) 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) (partially omitted).

Inside the door (12), the door (12) includes a latch (not shown) in the door lock (lock device) (27) and the vehicle body (1).
1) By closing the door (12) by forcibly rotating the latch when the striker (not shown) fixed to the side is barely engaged with the half latch position, which is a so-called half door state, the door (12) is opened. A closure (driving means) (D) configured to close to an overstroke position exceeding the fully closed position and an open lever (28) of a door lock (27) are linked to rotate the open lever in the release direction. This allows the solenoid to be released so that the door (12) can be opened by releasing the constraint of the latch.
A known spring-return type actuator (E) is provided.

The closure (D) is the same as that disclosed in Japanese Patent Application Laid-Open No. 2-70876, and the main configuration of the closure (D) will be described briefly. As a result, the sector gear (32) meshing with the pinion (31) is rotated counterclockwise in FIG. 1 via the speed reducer (30) and the pinion (31) fixedly fitted to the output shaft thereof. Move this sector gear (3
By the rotation of 2), the closing lever (34) linked to the sector gear (32) is rotated in a required direction by the cable (33), and the door lock (27) is rotated by the rotation of the closing lever (34). ), The arm (35) extending above the latch is pivoted to rotate the latch to an overstroke position beyond the full latch position where the striker is completely engaged, thereby half-latching the door (12). It can be forcibly closed from the position beyond the fully closed position to the overstroke position.

When the motor (29) is reversed, the sector gear (32) and the close lever (34) are returned to their original positions and rotated,
The close lever (34) stops at a position where the rotation of the arm (35) of the latch is not hindered.

(36) is a half-latch detection switch provided on the door lock (27). When the striker hits the latch when the door (12) reaches the half-latch position, the open lever (28) moves in the release direction. It is slightly rotated, and is closed by the rotation of the open lever (28) at that time.

(37) is an overstroke detection switch, and when the close lever (34) rotates the latch to the overstroke position, the switch comes into contact with the close lever (34) and is closed.

(38) is a return confirmation switch that detects that the sector gear (32) has returned to its original position.
When stopped at the home position, it is open in contact with the sector gear (32). When the sector gear (32) moves away from the home position, the sector gear (32) closes away from the sector gear (32). I have.

Motor (29) in closure (D), half-latch detection switch (36), overstroke detection switch (37), return confirmation switch (38), actuator (E) and power supply connector (C) on door (12) side The contacts (26a) (26b) are connected to the door-side control device (41) via an appropriate wiring cord (39).

FIG. 2 shows an electric circuit of a power supply control device for an automatic door opening / closing device.

The power supply control device (42) includes a vehicle body-side control device (40) in the lower half of the drawing and a door-side control device (41) also in the upper half of the drawing, bordering on the power supply connector (C). I have.

The vehicle body side control device (40) includes a door movement control device (A1) for controlling the door movement device (A), a door opening operation switch (22) of the operation device (B), and a door closing operation switch. When (23) is closed, the power supply connector (C)
Polarity reversing device (F) for reversing the polarity of power supply to the vehicle body side contacts (25a, 25b) and a timer control device for controlling the power supply time when the door (12) is closed by a timer (T). (G).

The door-side controller (41) is provided with a closure controller (D1) for controlling the closure (D) and an actuator controller (E1) for controlling the actuator (E).

In FIG. 2, the same reference numerals as in FIG.
The same members as described above are electrically displayed.

(R0) (R1) ... (R11) is a relay, (R0-1) (R
1-1) ... (R11-1) are those contacts, (T1) is
Timed contact of timer (T), (43) is contact (R0-1)
A predetermined motor (2
This is a current detector that detects that a current about the operating current of 9) has flowed and resets the timer (T).

Other symbols represent AND gates, OR gates, inverters, and the like with logic symbols, and diodes with electrical symbols.

The connection relation of each electric element is as shown in FIG.
A detailed description thereof will be omitted.

Next, the operation of the embodiment will be described with reference to FIG.

When the door (12) is closed to the fully closed position and the operating device (B) is stopped at the neutral position, the door switch (18) is opened, only the full latch detection switch is closed, and the other switches and As shown, the contacts are open when normally open, closed when normally closed, and all relays are deenergized.

In this state, when the door opening operation switch (22) of the operating device (B) is closed, the relays (R4) and (R5) are simultaneously energized, and the normally open contacts (R4-2) and (R5-1) are closed. , Normally closed contacts (R4-1) and (R5-2) open, and the power supply connector (C)
, Power is supplied so that the contact (25a) on the vehicle body side is negative and the contact (25b) is also positive.

At this time, since the contacts (25a) and (26a) and (25b) and (26b) are in contact with each other, power is supplied to the door (12) side, and the diode-relay (R10) (R11) -normally closed When the contact (R1-2) circuit is energized, the relay (R10) (R1
1) is activated.

When the contact (R10-1) is closed and the contact (R10-2) is opened by the bias of the relay (R10), the contact (R10) is opened.
9-2)-Contact (R3-2)-Motor (29)-Contact (R2-
2) The contact (R10-1) circuit is closed and the motor (2
A forward current flows through 9), and the motor (29) is rotated forward.

Then, the closure (D) operates and the door lock (2
7) Forcibly rotate the latch, and move the body (11) and door (1).
2) The door (12) is slightly moved from the fully closed position toward the overstroke position while compressing an elastic body (not shown) such as a seal member provided between the door (12).

At this time, the amount of movement of the door (12) from the fully closed position to the overstroke position may be such that it is invisible.

The energization of the relay (R11) opens its contact (R11-1) and prevents the energization of the relay (R9). That is, the return confirmation switch (38) closes slightly after the start of the operation of the motor (29), but the contact (R11-1) opens almost at the same time as the start of the operation of the motor (29). Will not be activated.

When the door (12) reaches the overstroke position, the overstroke detection switch (37) closes.

Then, the actuator (E) is energized, the open lever of the door lock (27) is rotated in the unlocking direction, the lock is released, and at the same time, the relay (R) is released.
1) is activated. At this time, the door (12) is located at the overstroke position, and no repulsive force of the elastic body acts on the open lever of the door lock (27).
The open lever is released lightly.

When the relay (R1) is energized, its contact (R1-1) is closed, the relay (R1) and the actuator (E) are self-held, and the contact (R1-2) is opened, and the relay (R1) is opened.
0) (R11) is deactivated.

When the relay (R11) is deenergized, its contact (R11-1) is closed, and at this time, the return confirmation switch (38) is closed, so that the relay (R9) is energized.

When the contact (R9-1) is closed and the contact (R9-2) is opened by the bias of the relay (R9), the motor (2
9), a current in the reverse direction, that is, a current passing through the contact (R10-2) -contact (R2-2) -motor (29) -contact (R3-2) -contact (R9-1) flows, and the motor ( 29) is reversed
The sector gear (32) in the closure (D) is rotated back toward the original position.

At this time, the repulsive force of the elastic body compressed by the door (12) urges the door (12) in the opening direction, that is, the direction of rotating the latch from the overstroke position toward the half-latch position. Acts to help the reversal of (29).

When the sector gear (32) of the closure (D) returns to its original position and the return confirmation switch (38), which was closed until then, opens, the relay (R9) is deenergized and its contact (R9-1) opens, The rotation of the motor (29) is stopped by closing the contact (R9-2). At this time, the motor (2
9) -Contact (R3-2) -Contact (R9-2) -Contact (R10-
2) A closed circuit composed of the contact (R2-2) and the motor (29) is formed.

Actuator (E) activates door lock (2
After the open lever (28) of (7) is rotated in the release direction and unlocked, the sector gear (32) of the closure (D) is returned to the original position, and the latch of the door lock (27) is restrained. When the door is completely unlocked, the door (12)
Is pushed open beyond the half-latch position due to the repulsive force of the elastic body.

Then, the door switch (18) closes and the relay (R7) is energized.

When the relay (R7) is energized, its contact (R7-1) closes, the contact (R7-2) opens, and the contact (R7-1) -motor (16) -contact (R6-2) circuit Is closed, and the motor (16) is rotated forward.

When the motor (16) is rotated forward, the door (12) is moved in the opening direction by the door moving device (A).

When the door (12) passes through the power supply start position, the contacts (25a) and (26a) and (25a) in the power supply connector (C)
b) and (26b) are separated from each other, the power supply to the door (12) is cut off, the relay (R1) is deenergized, the operation of the actuator (E) is stopped, and the open lever (26) is closed. Returned to position.

Thereafter, the door (12) is continuously opened by the operation of the door moving device (A), and when the door (12) is opened to the fully open position, the fully open switch (19) is closed.

Then, the relays (R7), (R4), and (R5) are all de-energized at the same time, their respective contacts return to the original state, the power supply to the motor (16) is stopped, and the power supply connector (C) Power supply to is also stopped.

To close the door (12), the door closing operation switch (23) of the operation device (B) may be closed. Since the operation at this time is not directly related to the present invention, the door moving device (A) is operated first, whereby the door (12) is moved to the half-latch position, and then the door moving device (A) is operated. At the same time as the operation of the moving device (A) is stopped, the closure (D) is operated, and the door (12) is closed by the closure (D) from the half-latch position to the overstroke position, and thereafter,
When the sector gear (32) of the closure (D) is returned to the original position, the door (12) is slightly returned to the fully closed position, where it is locked by the door lock (27) and stopped.

This embodiment is a case in which the present invention is applied to an automatic opening / closing device for a sliding door of an automobile.However, the present invention is not limited to only this embodiment, and includes, for example, a swing type door of an automobile, a hood, and the like. The present invention can be applied to a device that automatically opens a trunk lid, a door of a building, and the like.

Further, in the above embodiment, the door moving device (A) is combined, and as the driving means, the closure (D) for forcibly closing the door from the half-latch position is shared. Omit the device (A),
The present invention may be implemented by using a dedicated device as the driving means.

The configuration of the driving means is not limited to the closure (D) of the above-described embodiment, and may be any configuration as long as the door can be slightly pulled in from the fully closed position.

[Effect of the invention]

According to the present invention, the following effects can be obtained.

(A) When the lock device (27) is unlocked, the repulsive force of the elastic body between the door (12) and the support (11) should not be applied to the lock device (27) at all. Therefore, the unlock operation can be performed with a light force, and a small and low-output actuator can be used as the actuator (E) for the unlock operation.

After the overstroke detection switch (37) detects that the door (12) has completely reached the overstroke position, the unlocking actuator (E) is operated, so that the door closing drive means ( An erroneous operation in which D) and the unlocking actuator (E) operate simultaneously can be reliably prevented, and reliability can be improved. This is meaningful when the drive means of the actuator (E) is a motor, a solenoid, or the like, since such burning can be prevented.

(B) Noise at the time of the lock release operation can be significantly reduced.

That is, when the lock is released while the repulsive force of the elastic body is applied to the door (12) as in the related art, an unpleasant metal collision sound or a sliding noise is generated. Thus, the noise can be almost eliminated and the lock can be released quietly.

(C) A sudden opening of the door (12) can be prevented.
When the lock device (27) is released while the door (12) is under the resilience of the elastic body, the resilience of the elastic body causes
Although the door (12) may suddenly pop out, according to the present invention, the driving device (D) pulls the door (12) further in the closing direction than the fully closed position, and the locking device (27).
And then the door (12) can be opened gradually.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part of an automobile having an automatic door opening and closing device to which the present invention is applied, and FIG. 2 is an electric circuit diagram of the same. (A) Door moving device (A1) Door moving control device (B) Operating device (C) Power supply connector (D) Closure (driving means) (D1) Closure Control device (E) Actuator (E1) Actuator control device (F) Polarity reversing device (G) Timer control device (11) Vehicle body (support) (12) Slide Door (door), (16) (29) Motor (18) Door switch (20) Power supply start switch (22) Door open operation switch (23) Door close operation switch (24 ) Battery (27) Door lock (lock device) (37) Overstroke detection switch (38) Return confirmation switch (40) Vehicle-side control device (41) Door-side control Equipment, (42) ... Control device

Claims (1)

(57) [Scope of request for utility model registration] When the door is locked at a fully closed position by a lock device, the door is urged in a direction in which the door is opened by a repulsive force of an elastic body provided between the door and a support member that supports the door so that the door can be opened and closed. In the door device, the driving means for forcibly moving the door to the overstroke position moved in the direction to further close the door from the fully closed position to one of the door or the support, and the door is moved to the overstroke position. An overstroke detection switch for detecting that the door has been reached, an actuator for releasing the locked state of the lock device, and an operation of the door opening operation switch actuate the drive means to move the door from the fully closed position to the closing direction. The drive means so that the actuator is actuated when the door reaches the overstroke position and the overstroke detection switch is actuated. By providing a control device for controlling the fine actuator automatic door-opening device according to claim.