JPH024746B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically opening a door in an automobile or other vehicle.

Conventional automatic door opening device of this type (Special Publication No. 43-7247
(see Japanese Patent Publication No. 2003-111000), a switch for automatically opening the rear door was provided near the driver's seat, and the driver operated the switch to automatically open the rear door.

However, when there is no driver or when the driver wants to open the rear door from outside the vehicle, it is often necessary to open the rear door automatically by operating the inside handle or outside handle of the rear door. be. In particular, when you want to open a door while holding luggage in your hand, conventionally you have to release the door lock using the inside handle or outside handle, and then push the door open with your elbow.
In such a case, it may be desired that the door be opened automatically after the door lock is released.

In addition, the swing-type door of a car generally has a door hinge set so that the door closes under its own weight, so a large amount of operating force is required to open the door, especially when opening the door of a car stopped on a slope. Since the door's own weight is added, a very large amount of operating force is required. Moreover, as automobiles become more sophisticated and larger, the weight of the door increases, and a greater force is required to open the door.

In such a case, it is desirable that the door be opened automatically or that the door be assisted in the opening operation by some kind of driving source.

In addition, even in the case of sliding doors, when the car is stopped on a slope, the weight of the door acts heavily to prevent the door from opening.
In many cases, it becomes difficult to open the door, so an automatic door opening device as described above is desired.

An object of the present invention is to provide an automatic door opening device for automobiles etc. that can satisfy the above-mentioned demands. The reason is that the door can be opened automatically by linking with the outside handle and operating those handles.

The present invention will be described below based on embodiments shown in the accompanying drawings.

1 to 6 show a first embodiment of the invention.

Reference numeral 1 denotes a rear door of an automobile, which includes an inner panel 1a, an outer panel 1b, a front end plate 1c,
It consists of a rear end plate 1d, etc., and has a pair of upper and lower door hinges 2 each having a vertical pivot 2a, and its front end is pivotally connected to the body of an automobile.

A door opening device A is provided at the front of the door 1, and a door lock B is provided at the rear.

The door opening device A includes a motor 3 that serves as a drive source and is fixed to the center of the lower part of the inner panel 1a of the door 1. This motor 3 needs to be capable of forward and reverse rotation if the door opening device A is to have an automatic door closing function, but in this embodiment,
Since the door opening device A is intended only to automatically open the door and is not intended to close the door, it is sufficient that it rotates only in one predetermined direction.

The front end of the rotating shaft 3a of the motor 3 is connected to a reducer 4 with a built-in electromagnetic clutch fixed to the inner panel 1a.
The input shaft 5 is connected to the input shaft 5 at the input shaft 5 . A worm 6 is formed at the center of the input shaft 5, and this worm 6 meshes with a worm wheel 7.

The worm wheel 7 and the output shaft 8 pivotally supported at the center thereof are connected to an electromagnetic clutch CL (not shown).
-1, and the electromagnetic clutch CL
-1, the output shaft 8 rotates synchronously with the worm wheel 7, and the electromagnetic clutch CL-1 rotates in synchronization with the worm wheel 7.
The connection between them is severed by stopping the power supply to them.

An output gear 9 is fixed to the free end of the output shaft 8 that protrudes outward from the speed reducer 4 . This output gear 9 meshes with fan-shaped teeth 11a at the lower end of a sector gear 11 which is pivotally attached to the inner panel 1a and has a horizontal shaft 10 facing inward and outward directions of the door 1.

An upwardly facing arm 11b is formed on the upper part of the sector gear 11, and the upper end of this arm 11b has a horizontal shaft 12 facing inwardly and outwardly of the door 1, and a horizontal pushing rod 13 that extends in the front-rear direction. The rear end is pivoted.

The middle of the pushing rod 13 passes through a window hole 14 bored in the front end plate 1c of the door 1.
The front end of door hinge 3 is pivotally connected to a bracket 16 fixed to a center pillar 15 of the vehicle body at a position slightly lateral to the pivot axis 2a of the door hinge 2, with a vertical axis 17.

In this way, the door opening device A is formed by the configuration from the above-mentioned motor 3 to the push rod 13 via the speed reducer 4 and sector gear 11.

In this door opening device A, the sector gear 11 is rotated in a predetermined direction by rotating the rotating shaft 3a of the motor 3 in a predetermined direction while the electromagnetic clutch CL-1 in the reducer 4 is energized and excited.
By rotating counterclockwise in the figure, the push rod 13 can be pushed forward from the door 1 and the door 1 can be opened.

Note that the door 1 can be automatically closed by reversing the rotating shaft 3a of the motor 3, but since this automatic door closing operation is not directly related to the present invention, its explanation will be omitted.

LS-1 is a limit switch that detects the fully open state of door 1, and in this embodiment, sector gear 1
The inner panel 1a is fixed at a proper position so that the arm 11b comes into contact with the arm 11b when the arm 11b reaches the position where the door 1 is fully opened.

Next, door lock B will be explained.

This door lock B includes a door lock body 18 made of hard synthetic resin and fixed to the front surface of the rear end plate 1d of the door 1.

Inside the door lock body 18, as is well known, there is a bifurcated latch (not shown) that can engage with a striker 20 fixed to the side rear frame 19 of the vehicle body, and when this latch is engaged with the striker, the latch is engaged with the striker. A pole (not shown) for preventing rotation is pivotally attached to each of the poles, and by rotating this pole in a predetermined release direction when the door is closed, the engagement between the latch and the striker 20 is released, and the door is opened. It is now possible to open it (hereinafter this operation is referred to as unlocking).

A base plate 21 is fixed to the front surface of the door lock body 18, and the upper and lower ends of the base plate 21 face forward. Side plate 21
a and 21b are arranged in series.

The shaft 22 of the pole passes through the door lock body 18 and the base plate 21 and projects forward.
An open lever 23 facing left is fixed to its front end, and this open lever 23 can rotate integrally with the pole. The open lever 23 is biased counterclockwise in FIG. 4, which is the opposite release direction, by a suitable return rotation spring 24, and the open lever 23 is urged against the spring 24 in the counterclockwise direction in FIG. 4, which is the release direction. By rotating clockwise at , the pawl can be rotated in the release direction to release the lock.

A first release lever 26 is pivotally attached to the upper side plate 21a with a horizontal shaft 25 extending in the left-right direction. This first release lever 26 is connected to a rod 27
This is connected to an inside handle 28 disposed on the inside of the door 1, and by rotating the inside handle 28, the fourth shaft 25, which is bent at the lower end, is rotated around the shaft 25. The engaging piece 26a facing right in the figure can be moved up and down.

As clearly shown in FIG. 3, the inside handle 28 is pivotally connected to a support frame 29 fixed to the inner panel 1a of the door 1 with a vertical axis 30, and can be rotated from inside the vehicle. It is becoming possible to do so.

A second release lever 32 is pivotally mounted at the center of the lower part of the base plate 21 with a horizontal axis 31 extending in the front-rear direction. The second release lever 32 is biased counterclockwise in FIG. 4 by a spring 33 for return rotation, and the right end is pushed against the vertical rod as shown in FIG. 34
The rod 34 is connected to an outside handle 35 arranged on the outside of the vehicle of the door 1, and by rotating the outside handle 35, the rod 34 is pushed downward and the left end is pushed against the spring 33. It is designed to allow upward movement.

The outside handle 35 is pivotally mounted in a recess 36 formed in the outer panel 1b of the door 1 with a horizontal axis 37 in the longitudinal direction, and can be operated from outside the vehicle. The upper end of the rod 34 is connected to the vicinity of the free end of the arm portion 35a that protrudes further toward the inside of the vehicle.

A lower end portion of a sub-lever 38 extending in the vertical direction is pivotally fitted to the left end of the second release lever 32. As shown in FIGS. 4 and 5, a step-like actuating portion 38a is formed at the rear edge of the middle portion of the sub-lever 38, and when the sub-lever 38 is moved upward by the second release lever 32, this The actuating portion 38a contacts the open lever 23, and the open lever 2
3 can be pushed in the release direction.

The upper end of the sub-lever 38 has a hook portion 3 facing backward.
8b is formed, and when the engaging piece 26a of the first release lever 26 is moved upward with the engaging piece 26a of the first release lever 26 engaged with the hook portion 38b, the sub-lever 3
8 is also pulled up, and the actuating part 38 of the sub-lever 38
a, the open lever 23 can be pushed in the release direction.

A vertically elongated hole 39 is bored in the middle portion of the sub-lever 38 .

The lower side plate 21b has a horizontal shaft 4 in the left and right direction.
0, the middle portion of the lock/unlock lever 41 is pivotally mounted. The lower end of the locking/unlocking lever 41 is connected to a locking/unlocking knob (not shown) provided on the window frame on the inside of the vehicle with an appropriate rod (not shown), and by this operation, the locking/unlocking lever 41 is , it can be selectively moved between an unlocked position shown in FIG. 5 and a locked position slightly rotated counterclockwise in FIG. 5 around the shaft 40 from that state.

Note that the upper end of the lock/unlock lever 41 may be linked to an appropriate actuator (not shown) that forcibly moves the lock/unlock lever 41 by a driving means such as a motor or a solenoid.

The lock/unlock lever 41 and the sub-lever 38 are linked to each other by fitting a projecting piece 41a formed by bending the upper part of the lock/unlock lever 41 rightward into the elongated hole 39 of the sub-lever 38 in a slidable manner. , when the lock/unlock lever 41 is in the locked position, the actuating portion 38a of the sub-lever 38 also deviates from the rotation trajectory of the open lever 23, and the hook portion 38b moves from the rotation trajectory of the engagement piece 26a of the first release lever 26. 5th off from
When the locking position shown by the imaginary line in the figure is reached, and the locking/unlocking lever 41 is in the unlocking position, the sub-lever 38
Also, the operating portion 38a is aligned with the rotation locus of the open lever 23, and the hook portion 38b is aligned with the rotation locus of the first release lever 23.
The unlocked position shown by the solid line in FIG. 5 is set in the rotation locus of the engagement piece 26a of No. 6.

Therefore, by setting the lock/unlock lever 41 and the sub-lever 38 to the locked position, the first
The first release lever 26 can be disconnected from the release lever 26 and the second release lever 32 and the open lever 23, and the lock/unlock lever 41 and the sub-lever 38 can be set to the unlocked position.
and the second release lever 32 and the open lever 23
It is possible to secure cooperation with

In addition, 42 is a shoe fitted onto the protrusion 41a in order to smoothly slide the protrusion 41a in the elongated hole 39, and 41b is a shoe that is attached to the base plate 21 when the lock/unlock lever 41 is in the unlocked position. The stopper 43, which is brought into contact with the stopper 41b, is a buffer fitted to the stopper 41b.

LS-2 is a limit switch fixed to the lower side plate 21b so as to be activated by contacting the lock/unlock lever 41 when the lock/unlock lever 41 is in the unlocked position.

In the present invention, the above-mentioned inside handle 28 and the first release lever 26 in the door lock B are
The top 44 is fixed in the proper position on the rod 27 that connects the door lock B, and the door lock B is rotated to rotate the inside handle 28 to unlock the door lock. Fix the limit switch LS-3, which is a door switch, to the inner panel 1a, and turn the outside handle 35 to lock the door B.
A limit switch LS-4, which constitutes an automatic door opening switch, is fixed to the front surface of the rear end plate 1d so that it comes into contact with the free end of the arm 35a of the outside handle 35 during the idle stroke after the lock is released. However, the door opening device A is operated by operating either of the limit switches LS-3 and LS-4.

Next, the electric circuit will be explained based on FIG.

In Fig. 6, 45 is a power source such as a car battery, and a limit switch LS-
3, limit switch LS-2, electromagnetic clutch CL-1, and limit switch LS-1 are connected in series, limit switch LS-4 is connected in parallel to limit switch LS-3, and motor 3 is connected in series.
Each is connected in parallel with electromagnetic clutch CL-1.

Reference numeral 46 denotes an automatic door opening switch provided in the driver's seat.Since this switch 46 is not directly related to the present invention, a description of its operation will be omitted.

Next, based on the electric circuit shown in FIG.
The operation of the embodiment will be explained.

When the door 1 is closed and the lock/unlock lever 41 is in the release position, the limit switch LS-1 and the limit switch LS-2 are closed.

When the inside handle 28 is rotated from this state, the rod 27 is pulled, the first release lever 26 is rotated counterclockwise in FIG. 5, the engaging piece 26a pulls the sub lever 38 upward, and the sub lever Open lever 2 with actuating part 38a of 38
Rotate 3 in the release direction to release the lock.

After the lock is released, the idle stroke of the rod 27 causes the top 44 to switch to the limit switch LS-3.
The limit switch LS-3 closes.

Then, power supply 45-limit switch LS-
3-Limit switch LS-2-Electromagnetic clutch CL
-1-Limit switch LS-1-An open circuit of power supply 45 is formed, and electromagnetic clutch CL-1 is energized and excited. At the same time, power is also supplied to the motor 3, and in the door opening device A, the sector gear 11 is
It rotates counterclockwise in the figure and pushes the push rod 13 forward from the door 1, and the reaction causes the door 1 to move forward.
opens.

When door 1 opens to the predetermined fully open position,
Sector gear 11 contacts limit switch LS-1, limit switch LS-1 opens, and power supply to electromagnetic clutch CL-1 and motor 3 is stopped, thereby stopping the operation of the entire device.

Even when the outside handle 35 is rotated with the door 1 closed and the lock/unlock lever 41 in the unlocked position, the open lever 23 is opened via the rod 34, the second release lever 32, and the sub lever 38. is rotated in the release direction to release the lock, the free end of the arm 35a of the outside handle 35 contacts the limit switch LS-4, the limit switch LS-4 closes, and the electromagnetic clutch CL-
1 and motor 3, the door 1 can be opened.

When the lock/unlock lever 41 is in the locked position, the limit switch LS-2 is open, so the inside handle 28 and the outside handle 3
5, the door opening device A does not operate, and since the sub-lever 38 is also in the locked position, it cannot be unlocked.

Therefore, when the lock/unlock lever 41 is in the locked position, there is no possibility that the door 1 will open unexpectedly.

The door 1 may be closed manually or by an automatic door closing device (not shown or described).

Since the first embodiment has the above-described configuration and operation, it can produce the following effects.

(1) It is possible to eliminate the feeling of weight of the door that occurs when opening the door manually, especially when opening the door when the car is stopped on a slope.

(2) Since the automatic device is activated by normal manual door opening operations, the door can be opened naturally without the need for special operations.

(3) The door is opened by operating the inside handle or outside handle directly from inside and outside the door, rather than from the driver's seat, so if the driver is not in the driver's seat or the driver is in the back seat, It is particularly convenient when loading and unloading luggage, etc., and it also allows you to more clearly check the safety of passengers and the safety of the front, rear, left, and right sides of the vehicle compared to operating from the driver's seat where the rear view is obstructed. It is also excellent in terms of gender.

(4) Even in the event of a malfunction, the door can be opened using normal manual opening operations, and in that sense it is safe.

(5) Since the lock release operation, which is relatively difficult to automate, is performed manually, and only the subsequent door movement is performed automatically, there is no need for complicated and expensive equipment, and the configuration is simple, making it easy to use in real life. It is meaningful because it can fully meet the demands that arise during use.

(6) After the lock is released, the automatic device will move the door.
Since the operation is performed in the same manner as in the case of manual operation, the operation from unlocking to moving the door is performed naturally and smoothly, and manual operation can also be used when moving the door. In this case, the manual operating force and the driving force provided by the automatic device cooperate to quickly open the door.

7 to 9 show a second embodiment of the invention.

In this second embodiment, instead of the limit switches LS-2, LS-3, and LS-4 in the first embodiment, the sub-lever 38 in the door lock B is moved upward while the sub-lever 38 is in the unlocked position. The only automatic door opening switch that comes into contact with the hook 38b of the sub-lever 38 due to the idle stroke after the lock is released by pressing the switch.
The limit switch LS-5 is fixed in place on the base plate 21, and the limit switch LS-5 is
-5 alone is configured to operate the door opening device A.

The rest of the structure is the same as that of the first embodiment, so the same members as in the first embodiment are used.
The same reference numerals as used in the first embodiment are used, and illustration and detailed explanation of the entire structure will be omitted.

FIG. 9 shows a specific electric circuit of the second embodiment.

In this circuit, a limit switch LS-5, an electromagnetic clutch CL-1, and a limit switch LS-1 are connected in series to a power source 45, and a motor 3 is connected in parallel to the electromagnetic clutch CL-1. It is exclusive to me.

Next, the operation of the second embodiment will be explained based on FIG. 9.

When the door 1 is closed and the lock/unlock lever 41 is in the unlocked position, the limit switch LS-1 is closed.

From this state, by rotating either the inside handle 28 or the outside handle 35, the sub-lever 38 is moved upward, and the operating portion 38a rotates the open lever 23 in the release direction to release the lock. be able to.

Due to the upward play stroke of the sub-lever 38 after this lock is released, the hook portion 3 of the sub-lever 38
8b comes into contact with limit switch LS-5, and when limit switch LS-5 closes, the electromagnetic clutch
Power is supplied to CL-1 and motor 3, door opening device A is activated, and door 1 is opened.

When door 1 reaches the fully open position, limit switch LS-1 opens and the device stops operating.

When the lock/unlock lever 41 is in the locked position, the sub-lever 38 is also in the locked position, and in this state,
The lock cannot be released by operating either the inside handle 28 or the outside handle 35, and at this time, the hook portion 38b of the sub-lever 38 is disengaged forward from the limit switch LS-5, so the sub-lever 38 No matter how much it moves up and down, limit switch LS-5 will not operate. Therefore, there is no possibility that the door 1 will open unexpectedly with the lock/unlock lever 41 in the locked position.

In this second embodiment, in addition to being able to achieve the same effects as the above-mentioned effects (1) to (6) in the first embodiment, as in the case of the first embodiment, the inside handle and the outside There is no need to provide separate automatic door opening switches for each handle, and only one limit switch LS-5 is required. Moreover, there is an advantage that there is no need to provide the limit switch LS-2 for detecting the locked state in the first embodiment.

10 to 14 show a third embodiment of the present invention.

In this third embodiment, the same members as in the first embodiment are given the same reference numerals as in the first embodiment, and detailed explanation thereof will be omitted.

In the third embodiment, a lock release device C and a lock/unlock lever operating device D for selectively moving the lock/unlock lever 41 between the lock position and the unlock position are added to the configuration of the first example, and Some changes have been made.

Next, the release device C will be explained.

Reference numeral 47 denotes a release lever, whose center part has a horizontal shaft 48 extending in the left-right direction, which is pivotally connected to the lower side plate 21b of the door lock B, and has a flexible cable 49 made of hard steel wire or the like at the front end. While the upper end is fixed, the rear end enters the rotation locus of the open lever 23, and by pulling the cable 49, the rear end moves the open lever 23 in the clockwise release direction in FIG. It can be rotated to unlock.

Note that 50 is an appropriate spring for returning the release lever 47 to the clockwise direction in FIGS. 10 and 13.

The cable 49 passes through a flexible cable conduit 51 whose upper end is fixed to a proper position on the inner panel 1a near the release lever 47, and has its lower end linked to a sector gear 52.

The sector gear 52 has a fan shape, and its center is
It has a shaft 53 facing inward and outward directions of the door 1, and is pivotally mounted at a proper position in the lower part of the inner panel 1a. A rear linear edge of the sector gear 52 is provided with a bending piece 52a facing toward the outside of the vehicle.
A through hole 54 is bored in the center. The lower part of the cable 49 is inserted through the through hole 54, and a pin 55 is fixed to the lower end of the cable 49.
The lower end of the cable 49 is prevented from coming out of the through hole 54.

The lower end of the cable conduit 51 is fixed at a proper position on the inner panel 1a so that the lower part of the cable 49 faces in a tangential direction about the axis 53 from the through hole 54.

Arc-shaped teeth 52b are formed on the arc-shaped edge of the sector gear 52. This tooth 52b is connected to the inner panel 1 at the rear of the motor 3' which serves as a common drive source for the door opening device A and the lock release device C.
It meshes with an output gear 58 that is fixed to the outwardly projecting end of an output shaft 57 of a reduction gear 56 with a built-in electromagnetic clutch that is fixed at a proper position in FIG.

This reducer 56 has the same configuration as the above-mentioned reducer 4, except that the attitude of attachment to the inner panel 1a is different from that of the reducer 4 by 180 degrees around the output shaft.

That is, the speed reducer 56 includes the same components as the input shaft 5, the worm 6, the worm wheel 7, etc. in the speed reducer 4 (not shown), and further includes an electromagnetic clutch CL that connects and disconnects the worm wheel and the output shaft 57. -2 (not shown). The input shaft of this reducer 56 is the rotation shaft 3 of the motor 3'.
a', and the reducer 56 is connected to the rear end of the motor 3'.
It is designed to be driven simultaneously with the speed reducer 4.

Thus, the release lever 47 is released from the motor 3' via the reducer 56, the sector gear 52, and the cable 49.
A lock release device C is formed by the configuration up to.

In this lock release device C, the sector gear 52 is rotated as shown in FIG. The lock can be released by rotating the cable clockwise to pull the cable 49 and using the release lever 47.

Further, when the power supply to the electromagnetic clutch CL-2 is stopped, the release lever 47 and the sector gear 52 are rotated back to the states shown in FIGS. 10 and 13 by the biasing force of the spring 50.

The upper end of the lock/unlock lever 41 in the door lock B has a substantially horizontal rod 59 extending in the front-rear direction and is linked to an actuator 60 fixed to the inner panel 1a at the front of the door lock B.

The actuator 60 constitutes a locking/unlocking lever operating device D, and in this embodiment, by passing a current in a certain direction through the coil, the rod 59 is pulled, and by passing a current in the opposite direction through the coil, It is of a known solenoid type that pushes the rod 59. However, if necessary, a motor-driven type may be used.

Thus, actuation of actuator 60 causes
The lock/unlock lever 41 can be selectively moved between a locked position and an unlocked position.

LS-2' is a limit switch that operates in the same way as the limit switch LS-2 in the first embodiment, and in this embodiment, the actuator 6
The rod 59 is fixed to the inner panel 1a so as to be operated by coming into contact with the front end of the rod 59 that protrudes forward.

LS-3' and LS-4' are limit switches corresponding to the limit switches LS-3 and LS-4 in the first embodiment, respectively, and in this embodiment, unlike the first embodiment, the At the beginning of the rotation operation of the inside handle 28 and the outside handle 35, the top 44 and the free end of the arm portion 35a of the outside handle 35 are brought into contact with each other to operate.

Furthermore, in the third embodiment, as clearly shown in FIG. 12, a shaft 61 of a latch (not shown) provided in the door lock body 18 is inserted through the door lock body 18 and the base plate 21 and protrudes forward thereof. the fan-shaped cam 62 is fixed to the protruding end, and when the latch is in the unlocked state,
A limit switch LS-46 is fixed to the outer periphery of this cam 62 at a proper position on the front surface of the base plate 21.
It is designed to operate when the two come in contact with each other.

FIG. 14 shows an electric circuit in the third embodiment.

To explain this electric circuit, 45 is a power source, and 46 is a switch for automatic door opening provided in the driver's seat, etc., which is not directly related to the present invention. Limit switch LS-1, LS-2', LS-3', LS-
4', LS-6, electromagnetic clutch CL-1, CL-2,
The motor 3 and the actuator 60 have the configurations described above, and electrically, the limit switch LS-1 is normally closed and opens only when the door 1 reaches the fully open position.
2' is located on the contact (ON) side when the lock/unlock lever 41 is in the locked position, and is switched to the contact (OFF) side when the lock/unlock lever 41 is in the unlocked position. .

When the latch is engaged with the striker and is prevented from rotating by the pole, the limit switch LS-6 is located on the contact (OFF) side, and when the latch is in the unlocked state,
It can be switched to the contact (ON) side.

Reference numeral 63 denotes a normally open switch that is closed in conjunction with the closing of either limit switch LS-3' or switch 46.

Reference numerals 64 and 65 indicate auto-lock switches for remotely controlling only the locking/unlocking lever 41, which are installed near the driver's seat and switch between the contact (ON) side and the contact (OFF) side in conjunction with each other. It's becoming possible.

Next, the operation of the third embodiment will be explained based on FIG. 14.

First, when the door 1 is closed and the lock/unlock lever 41 is in the unlock position, the limit switch LS-
1 is closed, and limit switch LS-2' is located on the contact (OFF) side.

In this state, either rotate the inside handle 28 or the outside handle 35, or
Alternatively, the door 1 can be opened by either closing the switch 63.

For example, when the inside handle 28 is rotated, the power supply 45-limit switch LS-3'
(or limit switch LS-4' if operating the outside handle), or switch 46-limit switch if switch 46 is closed.
LS-1-Limit switch LS-2'-Motor 3
- A closed circuit of the power source 45 is formed to supply power to the motor 3, and the limit switch LS-6
is located on the contact (OFF) side when door 1 is closed, so power is also supplied to electromagnetic clutch CL-2.

Therefore, motor 3 and electromagnetic clutch CL-2
When power is supplied to the lock release device C, the lock release device C is activated and the lock is released.

When the lock release is completed, the latch becomes the unlock state, limit switch LS-6 is switched to the contact (ON) side, and the electromagnetic clutch is switched to the contact (ON) side.
Power is supplied to CL-1 and motor 3.

Then, the door opening device A is activated and forcibly rotates in the direction to open the door 1.

When the door 1 reaches the fully open position, the limit switch LS-1 is opened, the closed circuit is opened, and the operation of the entire device is stopped.

When the door 1 is closed and the lock/unlock lever 41 is in the locked position, the limit switch LS-2' is switched to the contact (ON) side and the switch 63 is open, so the outside handle 3
Even if limit switch LS-4' is closed by turning 5, the above-mentioned closed circuit is not formed and the door cannot be opened.

However, the door can be opened by rotating the inside handle 28 to close the limit switch LS-3' or by closing the switch 46.

That is, when the limit switch LS-3' or the switch 46 is closed, the switch 63 is also closed, so first, the power supply 45 - the limit switch LS-3' or the switch 46 - the limit switch LS-1 - the limit switch LS-2' - the actuator 60 A closed circuit between the switch 63 and the power source 45 is once formed, and the actuator 60 is actuated to push the lock/unlock lever 41 to the unlocked position.

Then, the limit switch LS-2' is switched to the contact (OFF) side, a closed circuit including the motor 3 described above is formed, and the lock release device C is first activated to release the lock by the same operation as described above. Then, the door opening device A is activated and the door 1 can be opened.

From the above, it is assumed that the door 1 is closed and the lock/unlock lever 4 is closed.
1 is in the locked position, the door cannot be opened by operating the outside handle 35 from outside the vehicle, but it can be opened by rotating the inside handle 28 from inside the vehicle or by operating the switch 46 from the driver's seat. It is clear that the door can be opened.

This means that it is preferable in terms of anti-theft measures and that emergency escape from the inside of the vehicle is possible. In the case of emergency evacuation from inside the vehicle, you can simply pull the inside handle 28 instead of having to move the lock/unlock knob to the unlocked position and then operate the inside handle 28, as in the past.
The lock/unlock knob automatically returns to the unlocked position, and then the door 1 opens automatically.

Therefore, by confirming that the lock/unlock knob returns to the unlocked position, it is possible to predict that the door 1 will open automatically thereafter, which is advantageous in terms of safety.

When closing the door 1, the door 1 is closed manually or by a separate automatic door closing device, as in the case of the first embodiment.

In the third embodiment, although not directly related to the present invention, by switching the autolock switches 64 and 65 to the contact (OFF) side, a current is applied to the actuator 60 in the same direction as in the above case, and the operation is performed. By forcibly moving the lock lever 41 to the unlocked position or switching the auto-lock switches 64 and 65 to the contact (ON) side, current is applied to the actuator 6 in the opposite direction to the above case.
The lock/unlock lever 41 can be forcibly moved to the locked position.

In the third embodiment, in addition to being able to achieve the same effects as the above-mentioned effects (1) to (4) in the first embodiment, the following effects can also be achieved.

(7) Just by slightly rotating the inside handle or outside handle, the lock can be automatically unlocked and the handle can be operated easily.

(8) As already mentioned, emergency evacuation from inside the vehicle is possible. That is, when the lock/unlock knob is in the locked position, the door can be opened simply by operating the inside handle without returning it to the unlocked position, which is convenient for escape in the event of an accident.

(9) When opening the door by operating the inside handle in the locked state, the lock/unlock lever will return to the unlocked position and the lock/unlock knob will automatically move to the unlocked position. By confirming this, it is possible to predict that the door will open automatically thereafter, which is preferable from the point of view of safety.

15 to 17 show a fourth embodiment of the present invention.

In this fourth embodiment, limit switches LS-2', LS-3', LS-
In place of the limit switch LS-5' in the second embodiment, only one limit switch LS-5' is provided, which serves as an automatic door opening switch that has the same function as the limit switch LS-5 in the second embodiment. The release device C and the door opening device A are operated continuously.

In addition, in this embodiment, the limit switch LS-5' is configured such that the sub-lever 38 moves upward and
The operating portion 38a rotates the open lever 23 in the release direction, and at the initial stage of the sub lever 38's upward movement before unlocking, the sub lever 38
The base plate 21 is fixed to the base plate 21 so as to be operated by coming into contact with the hook portion 38b of the base plate 21.

Furthermore, in this embodiment, the lock/unlock lever operating device D in the third embodiment is omitted.

The other configurations are the same as those of the third embodiment, so the same members as in the third embodiment are used.
The same reference numerals as used in the third embodiment are used, and illustration and detailed explanation of the entire structure will be omitted.

FIG. 17 shows a specific electric circuit of the fourth embodiment.

This circuit replaces limit switches LS-3' and LS-4' in the circuit of the third embodiment shown in FIG. 14 with one limit switch LS-5', and omit limit switch LS-2'. Directly connect the right contact of LS-1 to the right contact of motor 3, and connect the actuator 6
This is substantially the same as the one in which the power supply circuit to 0 is omitted.

Next, the operation of the fourth embodiment will be explained based on FIG. 17.

When the door 1 is closed and the lock/unlock lever 41 is in the unlocked position, the limit switch LS-1 is closed and the limit switch LS-6 is in contact (OFF).
can be switched to the side.

In this state, power is supplied to the motor 3 and the electromagnetic clutch CL-2 by slightly turning the inside handle 28 or the outside handle 35 and closing the limit switch LS-5', or by closing the switch 46 from the driver's seat. The lock release device C operates to release the lock, and then the limit switch LS-6 is switched to the contact (ON) side, and power is supplied to the electromagnetic clutch CL-1 and the motor 3, thereby opening the lock. Door device A operates and door 1
opens.

When door 1 reaches the fully open position, limit switch LS-1 opens and the device stops operating.

When the lock/unlock lever 41 is in the locked position, the sub-lever 38 is also in the locked position, and in this state,
Even if the sub-lever moves upward, the sub-lever 38
Since the hook portion 38a is disengaged in front of the limit switch LS-5', the limit switch LS-5' will not close even if either the inside handle 28 or the outside handle 35 is rotated, and the door cannot be opened. .

Therefore, according to this fourth embodiment, in addition to being able to achieve the same effects as the above-mentioned effects (1) to (4) in the first embodiment, the same effects as in the second embodiment can be achieved. , that is, the switch for automatic door opening,
It is not necessary to separately provide each of the outside handle and the inside handle, and there is an advantage that only one switch is required. Further, an additional effect can be achieved in that a limit switch for detecting the locked state of the locking/unlocking lever is not required.

In addition, in this fourth embodiment, the function and effect that the door can be opened by operating only the inside handle when the lock/unlock lever is in the locked position cannot be achieved as in the third embodiment. , there is no practical inconvenience.

As is clear from the above, according to the present invention, the door can be automatically opened by operating the inside handle or outside handle of the door, and the above-described first embodiment (1) ~
The present invention is significant because it can provide an automatic door opening device for automobiles etc. that can achieve the effect as described in (4).

In the above-mentioned embodiments, the present invention is applied to a swing type door, but the present invention has the following features:
It can also be applied to sliding doors.

In addition, the above-mentioned door opening device A is configured to push a push rod toward the vehicle body side by a drive source inside the door, and open the door by the reaction force. It is also possible to use various types of doors that forcefully open the door using gears or the like.

Further, the mounting position of the limit switch LS-1, which restricts the fully open position of the door, may be freely adjustable, so that the range in which the door is automatically opened may be limited as necessary.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a door according to a first embodiment of the present invention, FIG. 2 is a partially cutaway front view, and FIG. 3 is taken along the line X--X of FIG. 1. FIG. 4 is a front view of the door lock in the first embodiment, FIG. 5 is a side view, and FIG.
FIG. 7 is a circuit diagram showing the electric circuit of the first embodiment.
8 is a side view of the door lock according to the second embodiment of the present invention, FIG. 9 is a circuit diagram showing the electric circuit of the second embodiment, and FIG. 10 is a third embodiment of the present invention. FIG. 11 is a partially cutaway side view of the example door, and FIG. 12 is also a partially cutaway front view.
The figure is a front view of the door lock in the third embodiment;
FIG. 13 is a side view, FIG. 14 is a circuit diagram showing the electric circuit of the third embodiment, and FIG. 15 is a front view of the door lock in the fourth embodiment of the present invention.
6 is a side view, and FIG. 17 is a circuit diagram showing an electric circuit in the third embodiment. A...Door opening device, B...Door lock, C...Lock release device, D...Lock/unlock lever operating device,
LS-1, LS-2, LS-2', LS-3, LS-3'
LS-4, LS-4', LS-5, LS-5', LS-6
... Limit switch, CL-1, CL-2 ... Electromagnetic clutch, 1 ... Door, 3, 3' ... Motor,
4...Decelerator, 11...Sector gear, 13...Pushing rod, 18...Door lock body, 23...Open lever, 27...Rod, 28...Inside handle, 35...Outside handle, 35
a...Arm portion, 38...Sub lever, 41...Lock/unlock lever, 47...Release lever, 49...Cable string,
52... Sector gear, 56... Reducer, 60...
Actuator.

Claims (1)

[Scope of Claims] 1. An automatic door opening switch which is activated by the operation of the inside handle or outside handle of the door is provided at a suitable position in the linkage mechanism between the door lock and the inside handle and the outside handle, By operating the door opening switch,
An automatic door opening device for an automobile or the like, characterized in that the door opening device forcibly opens the door is operated by an appropriate driving source. 2. The automatic door opening switch consists of a first switch installed inside the door to be activated by operating the inside handle, and a second switch installed inside the door to be activated by operating the outside handle. , the automatic door opening device for an automobile or the like according to claim 1, wherein the door opening device is operated by operating any one of the switches. 3 The automatic door opening switch is connected to the inside handle and outside handle, respectively,
The automatic opening device for an automobile or the like according to claim 1 is fixed to the door lock so as to be activated by coming into contact with a sub-lever in the door lock, which is moved in the direction of releasing the latch by the operation thereof. door device. 4. An automatic door opening switch that is activated by rotation of the inside handle or outside handle of the door is provided at an appropriate location in the linkage mechanism between the door lock and the inside handle and outside handle, and the automatic door opening switch is activated by rotating the inside handle or outside handle of the door. A lock release device that forcibly unlocks the door using an appropriate drive source and a door opening device that forcibly opens the door using an appropriate drive source are connected in succession. An automatic door opening device for automobiles, etc., characterized in that it is operated by 5. The automatic door opening switch consists of a first switch installed inside the door to be activated by operating the inside handle, and a second switch installed inside the door to be activated by operating the outside handle. 5. The automatic door opening device for an automobile or the like according to claim 4, wherein the lock release device and the door opening device are sequentially operated by operating one of the switches. 6 The automatic door opening switch is linked to the inside handle and outside handle, respectively.
The automatic opening device for an automobile or the like according to claim 4 is fixed to the door lock so as to be activated by coming into contact with a sub-lever in the door lock, which is moved in the direction of releasing the latch by these operations. door device.