JP6482306B2 - Automatic door opening and closing device for vehicles - Google Patents

Description

  The present invention relates to an automatic opening / closing device for a vehicle door.

  Conventionally, as disclosed in Patent Document 1, this type of automatic opening / closing device incorporates an electric motor as a door opening / closing drive source in a vehicle door, and pivotally attaches the drive source to a center pillar. It is connected to a door opening / closing rod provided so as to be able to appear and retract from the hinge side end of the door.

  The automatic opening / closing device is also linked to a door lock releasing device assembled to an existing door lock device on the vehicle door, and the door lock releasing device is a separate door lock releasing drive source comprising an electric motor. When the vehicle door is opened, the door lock device is unlocked by releasing the engagement with the striker on the vehicle body side by the latch incorporated in the door lock device.

When the vehicle door is opened, first, the drive source of the door lock release device is activated, the engagement with the striker by the latch of the door lock device is released, and immediately after that, the drive source of the automatic opening / closing device is activated, The opening / closing rod presses the center pillar to open the vehicle door.
Further, the vehicle door is closed by pulling the door opening / closing rod by the operation of the drive source of the automatic opening / closing device to rotate the vehicle door in the closing direction and simultaneously closing the vehicle door. The latch of the device is engaged with the striker, and the vehicle door is locked.

JP 2004-190413 A

In the automatic opening and closing device having the above-described configuration, a drive source for opening and closing the door and for unlocking the door is required to open the door for the vehicle.
Therefore, there is a problem that a space for installing the two drive sources inside the vehicle door is required and that the control of both the drive sources is complicated.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automatic door opening / closing device for a vehicle door that can unlock and open / close the door locking device with a single drive source.

In view of the above problems, an automatic opening / closing device for a vehicle door according to the present invention has a distal end pivotally attached to a center pillar, and cranks a base end of a door opening / closing rod provided so as to protrude and retract from a hinge side end portion of the vehicle door. A drive gear that is pivotally attached to a driven gear having a crank and meshed with a drive gear that can rotate forward and backward via a gear train , and the drive source that is attached to the drive gear is a door lock that is already installed on a vehicle door. The end of the lockout wire connected to the lock release mechanism of the device is connected, and the lockout wire is pulled while the drive gear is prevented from rotating in the closed state locked by the door lock device of the vehicle door. The drive source itself is set so as to swing around its drive shaft in a pulling direction for unlocking the lockout wire door lock device from a fixed position.
Also, when the door for the vehicle is fully opened, the drive source that has returned to the fixed position immediately after unlocking the door lock device is prevented from swinging in the pulling direction to unlock the door lock device for the lockout wire. The stop stopper is provided at an appropriate position of the driven gear corresponding to the track of the drive source.

In short, the present invention is such that a driven gear having a crank having a tip pivotally attached to a center pillar and pivotally attached to a base end of a door opening / closing rod provided so as to be able to protrude and retract from a hinge side end of a vehicle door can be rotated forward and backward. An automatic opening / closing device for a vehicle door in which a driving gear is engaged via a gear train, and a driving source having the driving gear attached to a shaft is linked to an unlocking mechanism portion of a door locking device already installed on the vehicle door. For locking out from a fixed position where the lockout wire is not pulled when the drive gear rotation is inhibited in the closed state locked by the door lock device of the vehicle door. Since the drive source itself is set to swing around its drive shaft in the pulling direction for unlocking the door lock device of the wire, if the drive source is operated during automatic opening of the vehicle door, The door Since the drive gear is in the rotation restrained state in the locked state by the lock device, the drive source itself swings in the swingable direction, that is, in the pulling direction for unlocking the door lock device of the lockout wire. The lockout wire is pulled and the door lock device is unlocked, so that the vehicle door can be opened and the rotation inhibition state of the drive gear is released, and the drive gear moves the driven gear to the vehicle door. The vehicle door can be opened by being rotated in the opening direction and the door opening / closing rod pressing the center pillar via the crank.
In addition, the door lock device can be locked by releasing the tension state of the lockout wire by a drive source that swings and returns to a fixed position by the drive gear that rotates as described above immediately after the unlocking. The vehicle door can be closed simply by rotating the drive gear in the opposite direction.
Therefore, according to the present invention, the door lock device (vehicle door) can be unlocked and the door opening / closing operation can be performed with one drive source. There is no need to install it inside the vehicle door, and only one drive source space needs to be secured in the vehicle door, and the vehicle door can be automatically opened and closed only by forward / reverse rotation of the drive source. Control can also be simplified.

  Also, when the door for the vehicle is fully opened, the drive source that has returned to the fixed position immediately after unlocking the door lock device is prevented from swinging in the pulling direction to unlock the door lock device for the lockout wire. Since the stop stopper is provided at an appropriate position of the corresponding driven gear on the track of the drive source, further rotation of the drive gear in the vehicle door opening direction is suppressed when the vehicle door is fully opened. Therefore, when the drive source is operated so that the vehicle door is opened by mistake, the drive source tries to swing again in the pulling direction of the lockout wire. However, since it is blocked by the stopper stopper, the practical effect such as being able to hold the lockable state of the door lock device is significant.

It is a simplified diagram showing the internal structure of a vehicle door with an automatic opening and closing device. It is a disassembled perspective view of an automatic switchgear. It is a partially omitted front view of the automatic opening and closing device in the closed state of the vehicle door. It is a partially omitted front view of the automatic opening and closing device in the unlocked state of the vehicle door. It is a partially omitted front view of the automatic opening and closing device in the fully open state of the vehicle door. FIG. 6 is a plan view of FIG. 5.

An embodiment of the present invention will be described below with reference to the drawings.
The automatic opening / closing device 1 according to the present invention is internally mounted on a rear door D of a vehicle (hereinafter referred to as a vehicle door D).
The vehicle door D is hingedly connected to a center pillar (not shown) of the vehicle body, and a door opening / closing rod 2 having a distal end pivotally attached to the center pillar and a base end connected to the automatic opening / closing device 1 is connected to the vehicle door. It is provided so that it can be inserted and retracted from the hinge end D1 of D.

The automatic opening / closing device 1 uses a forward / reversely rotatable electric motor as a drive source 3, and the drive source 3 causes the inner and outer surfaces of the vehicle door D to face the front and back surfaces, and one of them is the vehicle door D. It is attached to the back surface of the substrate 6 that is interposed between the support plates 4 and 5 that are parallel to each other before and after being fixed to the exterior surface D2, with a predetermined interval.
3 to 5, the front support plate 4 is omitted for convenience of explanation.

  The drive source 3 is set so as to swing up and down around a drive shaft 3a projecting and projecting from the back surface side to the front surface side of the substrate 6. The drive source 3 penetrates the substrate 6 on an appropriate concentric circle with the drive shaft 3a as the center. Each of the plurality of arc holes 7 is inserted with a bolt 8 having a flange 8a having a diameter larger than the width of the arc hole 7 to prevent the arc hole 7, and the bolt 8 is screwed to the drive source 3.

  A drive gear 9 is pivotally attached to the drive shaft 3a of the drive source 3 projecting through and projecting to the surface side of the substrate 6. The drive gear 9 is a crank that pivotally attaches the base end of the door opening / closing rod 2 via a gear train 10. Meshed with a driven gear 12 having 11.

The gear train 10 is pivotally supported between the front support plate 4 and the base plate 6, and has a large gear 10a directly meshed with the drive gear 9, and a drive source 3 arranged coaxially with the large gear 10a. A small gear 10b is supported between the base plate 6 and the rear support plate 5 together with the driven gear 12 and meshed with the driven gear 12.
A clutch 13 fixed to the back surface of the substrate 6 is interposed between the shafts of the large gear 10a and the small gear 10b so that the shafts are intermittently connected. Alternatively, the shafts of the large gear 10a and the small gear 10b are set to be connected only when the closing switch is turned on.

  The driven gear 12 is composed of a large fan-shaped gear having a diameter that can secure a stroke sufficient for the door opening / closing rod 2 to open and close the vehicle door D, and a crank 11 is provided on one side thereof.

Further, at an appropriate position of the drive source 3, a lockout wire 14a (hereinafter simply referred to as a wire 14a) connected to an unlocking mechanism portion 14 of a conventional door lock device (not shown) already installed on the vehicle door D is provided. referred to as. and connecting the ends of), by the wire 14a tension or tension release, the door D for vehicles with automatic releasably door lock device is unlocked, the automatic vehicle door D When closed, the door lock device is in a lockable state.

  The drive source 3 is a state in which the shafts of the large gear 10a and the small gear 10b are connected by the clutch 13, and the rotation of the drive gear 9 is inhibited in the closed state locked by the door lock device of the vehicle door D. Fixed position X in which the wire 14a is not pulled in the state (as shown in FIG. 3 or FIG. 5), the bolt 8 is positioned at the clockwise end 7a of the arc hole 7 and the motor head 3b is directed obliquely downward ) To the pulling direction L for unlocking the door lock device of the wire 14a, the drive source 3 itself is set so as to swing the motor head 3b upward.

  Further, the driving source 3 is urged so as to hold the fixed position X by a tension coil spring 15 having its ends hooked at appropriate positions of the driving source 3 and the substrate 6.

Further, in the fully open state of the vehicle door D, the drive source 3 that has returned to the fixed position X immediately after unlocking the door lock device swings again in the pulling direction L for unlocking the door lock device of the wire 14a. A stopper stopper 16 for preventing this is provided in parallel with the support shaft 12a at a suitable position around the support shaft 12a of the corresponding driven gear 12 on the track of the drive source 3.
The stopper stopper 16 is configured by externally fitting a tubular buffer rubber to a cylindrical core member having a predetermined diameter.

  In the automatic opening / closing device 1 configured as described above, when the vehicle door D is closed, the vehicle door D is locked by the door lock device, that is, the latch of the door lock device is engaged with the striker on the vehicle body side. As shown in FIG. 3, in the drive source 3, the motor head 3b is oriented obliquely downward, and the bolt 8 that supports the drive source 3 holds the fixed position X located at the clockwise end 7a of the arc hole 7, The coil spring 15 contracts to assist the state of the driving source 3 at the fixed position X.

When the vehicle door D is automatically opened, the opening switch of the automatic opening / closing device 1 is turned on to operate the drive source 3.
Then, since the vehicle door D is locked by the door lock device and the drive gear 10 is in a rotation restrained state, the drive source 3 itself can swing, that is, in the pulling direction L for unlocking the door lock device of the wire 14a. The motor head 3b is swung upward against the urging force of the tension coil spring 15.

As the drive source 3 swings upward, the bolt 8 is positioned at the counterclockwise end 7b of the arc hole 7, and the motor head 3b is substantially horizontal and close to the contact stopper 16 provided on the driven gear 12 in the stopped state. The wire 14a is pulled in the pulling direction L (see FIG. 4).
By pulling the wire 14a, the door lock device is unlocked, that is, the engagement with the striker by the latch of the door lock device is released, the vehicle door D is opened, and the rotation of the drive gear 9 is inhibited. When the drive gear 9 is released, the driven gear 12 is rotated in the opening direction of the vehicle door D, and the door opening / closing rod 2 presses the center pillar via the crank 11 to open the vehicle door D.

Further, immediately after the door lock device is unlocked, the drive source 3 is swung back to the fixed position X by being separated from the stopper stopper 16 by the drive gear 9 rotating as described above. The swinging recovery of the drive source 3 is assisted.
When the drive source 3 swings back to the home position X, the tension state of the wire 14a is released, so that the door lock device returns to the lockable state.

  In the fully open state of the vehicle door D in which the driven gear 12 has completed the rotation of the vehicle door D in the opening direction, the motor head 3b of the drive source 3 that has returned to the fixed position X immediately after the door lock device is unlocked. Since the stopper stopper 16 comes close to the stopper stopper 16 and corresponds to the position on the track on which the driving source 3 (motor head 3b) swings, the wire stopper 14 of the wire 14a is unlocked in the pulling direction L. It is prevented from swinging again.

  That is, in the fully opened state of the vehicle door D, the further rotation of the drive gear 9 in the vehicle door opening direction completes the rotation of the driven gear 12 in the opening direction of the vehicle door D as described above. Therefore, if the door switch is accidentally turned on and the drive source 3 is operated at this time, the drive source 3 tries to swing again in the pulling direction L of the wire 14a. 3 is blocked by the stopper stopper 16, and the lockable state of the door lock device is maintained.

  In the automatic closing of the vehicle door D, by turning on the closing switch, the drive source 3 is operated so as to rotate the drive gear 9 in the reverse direction to the above, and the gear train 10, the driven gear 12 (crank 11). ) To pull the door opening / closing rod 2 and immerse the door opening / closing rod 2 into the vehicle door D, thereby rotating the vehicle door D in the closing direction, and the latch of the door lock device is It can be achieved by engaging the side striker and locking.

2 Door open / close rod 3 Drive source
3a Drive shaft 9 Drive gear
11 Crank
12 Driven gear
14 Unlocking mechanism
14a lockout wire
16 Stopper stopper D Vehicle door
D1 Hinge side end L Pull direction X Fixed position

Claims (2)

The end of the door is pivotally attached to the center pillar, and the base end of the door opening / closing rod provided so as to be able to protrude and retract from the hinge side end of the vehicle door is pivotally attached to the crank, and the driven gear having the crank can be rotated forward and backward. The end of the lockout wire formed by meshing the gears via a gear train and connecting the drive gear to the lock release mechanism of the door lock device already installed on the vehicle door. And the door lock device for the lockout wire is unlocked from a fixed position where the lockout wire is not pulled in a state where the rotation of the drive gear is inhibited in the closed state locked by the door lock device for the vehicle door. An automatic door opening and closing device for a vehicle door, wherein the driving source itself is set to swing about its driving shaft in the pulling direction.   In the fully open state of the vehicle door, the drive source that has returned to a fixed position immediately after unlocking the door lock device is prevented from swinging in the pulling direction to unlock the door lock device of the lockout wire. 2. The automatic opening / closing device for a vehicle door according to claim 1, wherein a stop stopper is provided at an appropriate position of the driven gear corresponding to the track of the drive source.

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