JPS6242108B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that automatically opens and closes doors in automobiles and other vehicles, and more specifically, the present invention relates to a device that automatically opens and closes doors in automobiles and other vehicles. The present invention relates to a device that automatically releases the locked state of a device.

As a conventional example of such a device, for example, the first
There is a device as shown in the figure. (A similar device is, for example, Japanese Utility Model Publication No. 45-8562.) This device has one end pivoted on the side of the vehicle body c, which is slightly deviated laterally from the pivot point b' of the door hinge b of the door a. The other end of the substantially horizontal push rod d is connected to the free end of an arm e whose base end is pivotally mounted in the door a, and the arm e
is rotated in the front-rear direction of the door a by forward and reverse rotation of the push plate f pivotally mounted inside the door a, and the push rod d
A release lever (not shown) that opens and closes the door a by pushing and pulling it approximately in the axial direction and releases the locked state of the latch in the door lock, and the upper end of the drive plate f. , are connected by a flexible cable g such as a wire, and one end of a flexible outer case h that guides the cable g is placed in an appropriate position near the door lock, and the other end of the outer case h is connected to an arm. They are fixed to their upper ends so as to follow the operation of e.

When the door is to be opened, the drive plate f is rotated in the counterclockwise direction in FIG. 1 by the reduction gear j connected to the motor i, and the cable g is pulled and released. Activate the lever to release the door lock.

Next, when the drive plate f further rotates in the forward rotation direction, the pin k comes into contact with the side edge of the arm e, and the arm e
is rotated counterclockwise in FIG. 1, thereby pushing the push rod d out of the door a,
opens the door.

When closing the door, the motor i is reversely rotated to rotate the drive plate f in the reverse direction, which is clockwise in FIG.

As a result, the cable g that had been pulled out from the outer case h is pushed into the outer case h, and the release lever is returned to the inoperative position.
Return the door lock to its original unlocked state.

When the drive plate f further rotates in the reverse direction, the pin l comes into contact with the side edge of the arm e, causing the arm e to rotate clockwise in FIG.
The vehicle is pulled inward, the door is closed, and the vehicle is finally returned to its original state as shown in FIG.

This conventional device generally has the above-mentioned configuration and operation, but as the arm e rotates, one end of the outer case h moves, and the middle part moves each time the door is opened and closed. This is not only undesirable in terms of durability, but also causes the outer case to bend.
There are disadvantages such as an unpleasant sound caused by the sliding contact between the door a and the inner panel of the door a, and the outer case h getting caught on other door components, which may cause the device to become inoperable.

In addition, various devices other than the above-mentioned conventional devices have already been provided, but these devices have drawbacks such as complicated structures, loud operating noises, and discomfort.

The object of the present invention is to provide a lock release device for an automatic door opening/closing device that eliminates the above-mentioned drawbacks, and is characterized by the following:
One end of the release lever pivotally connected to the drive plate and the release lever of the door lock are linked to each other by an appropriate linking means, and the other end of the release lever is connected to rotate the drive plate in the normal rotation direction. A position where the end of the release lever that is connected to the release lever is aligned with the rotation axis of the drive plate, which is pushed by the arm when the door is opened, and maintains an immovable position regardless of the rotation of the drive plate during the door opening operation. The reason is that it was made possible to be located at

The present invention will be explained below based on the embodiments shown in FIG. 2 and below.

In FIG. 2, 1 is a rear door of a car;
2a is a pair of upper and lower door hinges that connect the center pillar 23 and the front end of the door 1, and 2a is a pivot shaft of the door hinge 2.

A motor 3 capable of forward and reverse rotation is fixed at a proper location on the inner panel 1a of the door 1. motor 3
The rotating shaft 3a is connected to an input shaft 5 of a speed reducer 4 fixed to a proper position on the inner panel 1a so as to rotate in synchronization with each other.

A worm 6 is fixed to the center of the input shaft 5 of the decelerator 4, and this worm 6 is attached to the decelerator 4.
The worm wheel 7 is engaged with the worm wheel 7 which is pivotally supported in the center of the worm wheel 7. An output shaft 8 is rotatably provided at the center of the worm wheel 7, and an output gear 9 is fixed to an end of the output shaft 8 that projects outside the reducer 4.

Thus, the worm wheel 7 and the output shaft 8 are connected or disconnected from each other via an electromagnetic clutch (not shown) built into the speed reducer 4.

10 is a horizontal axis 11 facing inward and outward directions of the door 1;
A sector gear 12 is formed on the lower edge of the drive plate, which has an arc shape centered on the shaft 11 and meshes with the output gear 9 of the reducer 4. .

A release lever 14 is pivotally attached to the diagonally upper rear part of the drive plate 10 so as to be rotatable on the plane of the drive plate 10, with a shaft 13 extending inward and outward directions of the door 1. A pin 15 that protrudes inward of the vehicle is installed at the upper end of the release lever 14, and this pin 15 is connected to the drive plate 10.
An elongated hole 10a formed in an arc shape centered on the shaft 11 is passed through the rear portion of the upper end.

Further, the release lever 14 has a spring 1 fixed at each end to its upper end and to the upper end of the drive plate 10 at a proper position.
6, it is biased counterclockwise in FIG. In this way, the release lever 14 has its pin 15 in contact with the front end of the elongated hole 10a, as shown in FIG.
and an inoperative position in which the lower end is deviated laterally from the shaft 11 that forms the rotation axis of the drive plate 10, and the pin 15 is in contact with the rear end of the elongated hole 10a, as shown by the solid line in FIG.
The lower end is movable to an operating position aligned with the axis of the shaft 11, and is constantly urged by a spring 16 toward an inoperative position.

Furthermore, the above-mentioned pin 1 is provided at the front of the upper end of the drive plate 10.
Similar to 5, a pin 17 is provided protrudingly facing toward the inside of the vehicle.

A base end (lower end) of an arm 18 extending substantially vertically is pivotally attached to a portion of the shaft 11 that is closer to the inside of the vehicle than the drive plate 10 . The intermediate part of this arm 18 is located between the pin 15 and the pin 17, and normally the release lever 14, on which the pin 15 is installed, is attached to the shaft 13.
Since the arm 18 is biased counterclockwise by the spring 16, the front and rear edges of the arm 18 are in contact with the pins 17 and 15, respectively.

As shown in FIGS. 2 and 5, arm 18
The rear end of a substantially horizontal push rod 20 that extends in the front-rear direction of the door 1 is pivotally attached to the free end (upper end) of the door 1, with a horizontal shaft 19 facing inward and outward directions of the door 1. Note that 21 indicates the large-diameter head 19a of the shaft 19 and the pushing rod 2.
This is a compression coil spring compressed around the shaft 19 between the

The middle of the pushing rod 20 passes through a window hole 22 bored in the front end plate 1b of the door 1, and the pushing rod 20
The front end of the door hinge 2 is pivoted about a vertical axis 25 to a bracket 24 fixed to a center pillar 23 of the vehicle body at a position slightly lateral to the pivot axis 2a of the door hinge 2.

Thus, by rotating the free end of the arm 18 forward and pushing the push rod 20 forward from the door 1, the door 1 can be opened, and at the same time, the free end of the arm 18 can be rotated backward. The door 1 can be closed by moving the push rod 20 into the door 1.

One end of a flexible cable 27, such as a wire, inserted into a flexible outer case 26 is fixed to the lower end of the release lever 14.

The other end of the cable 27 is fixed to the free end of a release lever 29 in a door lock 28 provided at the rear of the door 1.

One end of the outer case 26 is fixed to the inner panel 1a on a substantially extended line of a straight line connecting the shaft 11 and the lower end of the release lever 14 in the inoperative position, and the other end of the outer case 26 is attached to the release lever 29. It is fixed to the inner panel 1a near the free end of the cable 27, and guides the cable 27.

The door lock 28 is attached to the side rear frame 3 of the opposing vehicle body.
Striker 31 fixed to 0 and door lock 2
The door 1 is restrained in the closed state by engagement with a latch 32 provided in the latch 8, and its construction is almost the same as that of a conventional known device.

The release lever 29 has the same function as the release lever in a conventional door lock, and is in an inactive state when the release lever 14 is in the inoperative position as shown in FIG. By turning the latch 27 into the operating position, pulling the cable 27, and rotating it counterclockwise in FIG. 2, the actuating position can be achieved. The latch 32 can be disengaged from the striker 31 by removing a pawl (not shown) attached to the latch 32 from the latch 32.

The rest of the structure of the door lock 28 is the same as the conventional one, so a detailed explanation will be omitted.

Next, the operation of the above embodiment will be explained.

When the door 1 is closed, the release lever 14
The door lock 28 and the release lever 29 are in the inoperative position, the latch 32 is engaged with the striker 31, and the door lock 28 is in the locked state.

Further, the motor 3 is stopped, the electromagnetic clutch built in the reducer 4 is demagnetized, the drive plate 10 and the arm 18 are stopped at the position shown in FIG. 2, and the push rod 20 is It is stopped in a retracted state inside door 1.

To open the door 1 from this state, turn on the door opening switch (not shown) installed in the driver's seat of the car, energize the electromagnetic clutch in the reducer 4, and operate the motor 3 in the forward rotation direction. let

Then, the drive plate 10 is rotated in the forward rotation direction, which is the counterclockwise direction in FIG. 2, via the decelerator 4.

At the beginning of the rotation of the drive plate 10 in the normal rotation direction,
The release lever 14 has a pin 15 at the upper end connected to the arm 18.
By coming into contact with the rear end, it is rotated clockwise within the elongated hole 10a of the drive plate 10, and the lower end to which the cable 27 is fixed is rotated clockwise to the top of the shaft 11. The operating position is as shown by the solid line in FIG.

As a result, the release lever 29 is also rotated to the operating position, which causes the release lever 29 to release the latch 32.
is released, the door lock 28 is released, the striker 31 is released from the latch 32, and the door 1 is slightly opened due to the reaction force of the weather strip. Note that the imaginary line in FIG. 3 shows the state before the drive plate 10 is rotated.

Furthermore, when the drive plate 10 rotates in the normal rotation direction,
While the release lever 14 is maintained in the operating position, the arm 18 is rotated counterclockwise by the pin 15, and the push rod 20 is pushed forward to open the door 1. can.

When the door 1 is fully opened, an appropriate limit switch (not shown) that detects the fully open state of the door 1 is activated, stopping the operation of the motor 3 and demagnetizing the electromagnetic clutch in the speed reducer 4.

At this time, the drive plate 10 is slightly rotated in the reverse direction by the action of the spring 16, and relative to this, the release lever 14 is rotated counterclockwise around the shaft 13 to the inoperative position, and the drive plate 10 is rotated in the reverse direction. The pin 15 passing through the long hole 10a of 10 is located at the front end of the long hole 10a and remains in contact with the rear edge of the arm 18. This state is shown in FIG. For this reason,
The lower end of the release lever 14 returns from the shaft 11 toward the outer case 26, and at this time, the release lever 29 at the other end of the cable 27 is returned to its inoperative position.

To close door 1 from the open state,
Door closing switch installed in the driver's seat, etc. (not shown)
is turned on, the electromagnetic clutch in the reducer 4 is energized, and the motor 3 is operated in the reverse direction.

Then, the drive plate 10 is moved to the second position via the decelerator 4.
The arm 18 is rotated in the reverse direction, which is clockwise in the figure, and as the drive plate 10 rotates, the arm 18
is rotated clockwise in FIG. 2 by pin 17. Further, due to this rotation of the arm 18, the push rod 20 is pulled into the door 1, and the door 1 is closed. At this time, since the release lever 14 is biased counterclockwise around the shaft 13 by the spring 16, it is maintained in the inoperative position, and the release lever 14
9 also continues to be held in the inoperative position.

On the other hand, on the door lock 28 side, the striker 31 engages with the latch 32, and in this state, the latch 32 is latched to the pole, and the door 1 is restrained in the closed state.

When the door 1 is completely closed, an appropriate limit switch (not shown) detects this, and the motor 3
At the same time, the electromagnetic clutch in the decelerator 4 is demagnetized.

As is clear from the above, in the present invention,
There is no need to fix the outer case, etc., which is the linking means between the release lever and the release lever, to the arm, which is a movable member, as in the past, and it can be fixed to a fixed member, such as the inner panel of the door. As shown in the figure, the outer case does not move or bend each time it is operated, and there is no fear that the durability will be impaired or that it will cause malfunction, which is significant.

In addition, in the present invention, when the door is opened, the linking part of the release lever with the release lever is located at a position that aligns with the axis of the rotation shaft of the drive plate, which always maintains an immovable position regardless of rotation of the drive unit. This is advantageous because the linkage means, such as cables, will not bend during the door opening operation, and the fear of damage or malfunction of the linkage means can be eliminated.

Furthermore, the present invention has the advantage that it can be easily manufactured by simply pivoting the release lever to the drive plate, has a simple structure, and does not cause impact noise or the like when the door lock is released.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view of the main part of an automobile door showing an example of a lock release device in a conventional automatic door opening/closing device, and FIG. 2 is a main part of an automobile door showing an embodiment of the present invention. 3 and 4 are partially enlarged front views showing the operation of the above embodiment, and FIG. 5 is an enlarged sectional view taken along the line of FIG. 2. 1...Door, 2...Door hinge, 10...Drive plate, 1
1...Shaft, 14...Release lever, 15...Pin, 16...
Spring, 17... pin, 18... arm, 20... push rod, 27... cable, 28... door lock, 29... release lever, 31... striker, 32... latch.

Claims (1)

[Claims] 1. One end of the push rod is pivotally attached to the vehicle body, and the other end is
The base end is connected to the free end of an arm pivotally mounted within the door, and the arm is rotated by forward and reverse rotation of a drive plate pivotally mounted within the door to push the push rod; In an automatic door opening/closing device that opens and closes the door by pulling the door, the release lever includes a release lever that releases the locked state of a latch in the door lock, and a release lever that is pivotally connected to the drive plate and has one end that is connected to the rotation axis of the drive plate. one end of a release lever that is movable between an activated position aligned with the axis of the drive plate and an inactivated position laterally offset from the axis of the rotation axis of the drive plate, and that is always biased toward the inactivated position; are interlocked with each other by appropriate linking means, and the other end of the release lever is capable of abutting against the edge of the arm;
A lock in an automatic door opening/closing device, characterized in that when the drive plate rotates in the normal rotation direction, the other end of the release lever is pushed by an arm, and the release lever is moved to an operating position. release device.