JP2508746Y2 - Car door opener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of an opening / closing device for an automobile door.

(Prior Art) Conventionally, as an automatic door opening / closing device for an automobile, a device provided with an opening / closing mechanism for opening and closing the door by an actuator has been proposed (see Japanese Utility Model Publication No. 45-8562).

Also, in order to alleviate the impact caused by closing the door with force when closing the door and ensure the door is closed, from the position where the striker of the vehicle body rotates the door lock latch to the half lock position to the full lock position, It is also proposed to provide a tightening mechanism (door closing device) for performing a tightening operation by rotating the latch with an actuator (US Patent 39).
89287, JP-A-58-83777, JP-A-58-189473).

Further, the opening / closing mechanism and the tightening mechanism (auxiliary closing device)
An automatic door opening / closing device in combination with and is also proposed (see Japanese Patent Publication No. 1-12912).

By the way, in the tightening mechanism in which the latch is rotated by the actuator and tightened, if the latch and actuator are simply connected by a rod, the actuator must be pushed back when the latch returns to the unlocked position by the spring. However, there is a problem in that the latch may not be able to be unlocked due to a problem caused by rotation of the latch.

Therefore, the applicant of the present application discloses in Japanese Patent Application No. 1-110461 that the latch can be freely rotated between an unlocked position and a locked position at the connecting portion between the actuator and the latch so that the rotation of the latch is hindered. We have proposed a door opening / closing device for automobiles that does not occur.

(Problems to be solved by the invention) However, in the opening / closing device having the above-described tightening mechanism, when the latch is in a predetermined positional relationship with the striker (for example, when the latch is half-locked, the striker is When the striker contacts the latch, the striker slightly moves the latch, etc.), and the actuator is tightened.

Therefore, in the case where the door is suddenly closed, the latch may rotate to the full lock position before the actuator is tightened. In this case, the actuator is not connected to the latch after that. Then, the so-called idling tightening operation is started.

However, if the occupant's fingers, etc. are caught in the door that has been closed abruptly and it is necessary to open it quickly, the actuator is in the process of performing a loose swinging tightening operation. There was a problem that the door was closed to the full lock position and the door was closed by the tightening mechanism.

The present invention has been made in order to solve the above-mentioned problems, and in the opening and closing device as described above, when the latch is rotated to the full lock position before the actuator is tightened, the actuator is tightened by the idle swing. The purpose is to control the operation so that it is not performed so that the opening operation of the door can be performed smoothly.

(Means for Solving the Problems) Therefore, the present invention provides an opening / closing apparatus for an automobile door, which is provided with a tightening mechanism for tightening a door lock latch by an actuator. The actuator is connected to the actuator via a connecting member that allows free rotation between the actuator and the actuator, and the actuator has a predetermined positional relationship with the striker and a predetermined time in that state. It is characterized in that a control circuit for tightening and operating is provided.

(Operation and effect of the invention) In the invention, the control circuit causes the actuator to be tightened only when a predetermined time elapses in that state after the latch is in the predetermined positional relationship with the striker. Is.

Therefore, when the door is suddenly closed, the latch is rotated to the full lock position within a predetermined time after the latch is in the predetermined positional relationship with the striker. The jamming operation will not be performed.

For this reason, even if you suddenly open a closed door,
Since the actuator does not perform the idling tightening operation,
The problem that the door is closed by the tightening mechanism is eliminated, and the door opening operation can be performed smoothly.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a side door 10 for an automobile is attached at its front end to a vehicle body 11 via a hinge mechanism (not shown) so as to be openable and closable, and is locked to the vehicle body 11 at the rear portion of the door 10 when the door is closed. A door lock (lock mechanism) 12 is installed to lock the door.

 In addition, 13 is a window glass.

An opening / closing mechanism 14 for opening and closing the door 10 with an actuator is attached to the front of the door 10, and a latch 69 (described later) of the door lock 12 is fastened with an actuator (electric motor 62) to the rear of the door 10. A tightening mechanism 15 for inserting operation is attached.

The opening / closing mechanism 14 operates the door 10 between the fully open position and the fully closed position, while the tightening mechanism 15 is operated.
When the door 10 is closed, the striker 71 (described later) of the vehicle body 11 operates from the position where the latch 69 of the door lock 12 is slightly rotated to the full lock position.

From the position where the striker 71 abuts the latch 69 or the half-lock position of the latch 69, the tightening mechanism 15
May be activated.

The opening / closing mechanism 14 includes a push / pull member 18 and a sector gear 19
And manual / auto switching (planetary gear type) clutch mechanism 20
And an electric motor 21.

One end of the push-pull member 18 is connected to the vehicle body 11, and the other end is connected to the operation arm portion of the sector gear 19.

The sector gear 19 is rotatably attached to a base substrate 24 fixed in the door 10 by a rotation shaft 25.

Then, in the state of FIG. 1 in which the sector gear 19 is rotated rightward (in the direction of the hour hand), the push / pull member 18 is pulled into the door 10, the door 10 is fully closed, and the sector gear 19 rotates counterclockwise. When moving (counterclockwise direction), the push / pull member 18 is pushed out of the door 10 and the door 10 is opened.

The sector gear 19 is provided with a rotary encoder (door opening detector) 32.

On the other hand, as shown in detail in FIG. 2, the tightening mechanism 15 of the door lock 12 includes a turning lever 60 (see FIG. 3) for forcibly turning a latch 69 (described later), a tightening rod 61 and a tightening rod 61. The door lock 12 is provided with an unlocking mechanism 63 and a lock knob operating mechanism 64.

In the door lock 12, as shown in detail in FIGS. 3 to 6, a cover body 67 made of synthetic resin is fixed to a base substrate 66 together with a cover plate 68, and a latch 69 is provided in the cover body 67.
The latch 69 is fixed to a rotary shaft 70 which is rotatably supported by a cover body 67 and a cover plate 68.

A notch 67a is formed in the cover body 67 to allow the striker 71 on the vehicle body 11 side to move in and out when the door is opened and closed.
9 includes a striker engagement groove 69a and a half lock groove 69b.
And a full lock groove 69c are formed.

A claw lever 72 is supported by a pin 73 in the cover body 67, and the claw lever 72 is biased in a latch abutting direction by a spring 74 to sequentially engage with a half lock groove 69a and a full lock groove 69c of a latch 69. Then, the latch 69 is locked at each of the half lock position and the full lock position.

The latch 69 is urged by the spring 75 to the unlock position where the engagement groove 69a is engageable with the striker 71 entered from the notch 67a of the cover body 67.
Rotated from the unlock position to the half lock position to the full lock position against the urging force of 75, the engagement groove 69a half-locks the striker 71 in the half lock position and the full lock position in the full lock position. Lock it.

An open lever 79 is supported on the base board 66 by a pin 80. When the open lever 79 is turned counterclockwise (counterclockwise hand rotation) in FIG. 3, the claw lever 72 is swung in the latch non-contact direction. Unlock the latch 67.

On the base substrate 66, the push lever 81 is supported by the pin 82, the lock plate 83 is supported by the pin 84, and the upper end of the link 85 is attached to the pin 86 by one pin of the push lever 81.
The lower end portion 85a of the link 85 is supported by the pin 87 of the central arm 83a of the lock plate 83.

The inner lever 88 is attached to the rising edge 66a of the base board 66.
Is supported by pin 89.

The rising 66a of the base substrate 66 and the push lever 81
A coil spring 90 is stretched between and.

An inner rod 91 of an inner handle is connected to the inner lever 88. When the inner handle 91 is pulled and operated, the inner lever 88 is pulled through the inner rod 91.
Is oscillated, the other arm of the push lever 81 is pushed by the inner lever 88 to rotate the push lever 81 counterclockwise (Fig. 3), the link 85 is moved downward via the pin 86, and the falling edge 85b of the link 85 is reached. By pushing down the fall 79a of the open lever 79 and rotating the open lever 79 counterclockwise (FIG. 3), the latch 69 is unlocked by the claw lever 72. This returns the latch 69 to the unlocked position and the striker 71
Unlock.

The pin 86 above is the outer rod of the outer handle.
When the outer hole 92a of 92 is linked and the outer handle is pulled, the link 85 is moved downward via the outer rod 92, and the fall 85b of the link 85 pushes the rise 79a of the open lever 79 to push down the open lever 79. Is rotated counterclockwise (FIG. 3) to unlock the latch 69 by the claw lever 72. As a result, the latch 69 returns to the unlocked position, and the striker 71 is unlocked.

The key rod 93 of the key cylinder is connected to the left arm 83b of the lock plate, and when the key cylinder is locked and operated, the lock plate 83 is rotated rightward (FIG. 3) via the key rod 93 and the link 85 is attached via the pin 87. When the link 85 is moved downward by operating the inner handle or the outer handle, it is swung so that the falling edge 85a does not push down the rising edge 79a of the open lever 79 by rotating it leftward.

A knob rod 94 of a lock knob is connected to the right arm 83c of the lock plate 83, and when the lock knob is operated, the lock plate 83 is rotated clockwise (FIG. 3) via the knob rod 94 and the link 85 is rotated clockwise via the pin 87. By letting
Even if the link is moved downward by operating the inner handle or the outer handle, the falling 85a does not push down the rising 79a of the open lever 79 so that it does not swing.

The knob rod 95 of the lock knob operating mechanism 64 is connected to the right arm 83c of the lock plate 83.
2 is connected to the plunger 97 of the solenoid 96 attached to the lower part of the door 10 as shown in FIG. 2, and the manual operation switch 122 (see FIG. 8) is operated to excite / demagnetize the solenoid 96. By doing so, the lock plate 83 is rotated counterclockwise or clockwise through the knob rod 95 to lock / lock the lock knob.
It can be operated in the unlocked position.

The solenoid 96 has a locking / unlocking position detection switch 127.
(See FIG. 8) is attached to detect the position of locking and unlocking.

The above-described door lock 12 latch 69, claw lever 72,
Open lever 79, push lever 81, lock plate
Most of the structures and operations of the 83, the link 85, the inner lever 88, etc. are known, and the characteristic structures and operations of this embodiment will be described below.

A rising edge 69d is formed on the latch 69, and on the base substrate 66, an unlocking detection switch 101 that comes into contact with the rising edge 69d of the latch 69 at the unlock position and turns on, and a rising edge 69d of the latch 69 at the full lock position. A full lock detection switch 102 that comes into contact and turns on is provided.

Therefore, when the door 10 is closed, the striker 71 on the vehicle body side
Comes into contact with the latch 69 and rotates the latch 69 slightly,
Since the rising edge 69d separates from the unlock detection switch 101 and the unlock detection switch 101 is turned off, the position where the striker 71 slightly rotates the latch 69 is detected. If a half lock detection switch (not shown) that abuts against the rising edge 69d of the latch 69 is provided at the half lock position of the latch 69, the half lock position of the latch 69 can be detected.

Further, if the latch 69 is provided with a contact detection switch for the striker 71, the position where the striker 71 contacts the latch 69 can be detected.

A rotating lever 60 is fixed to a rotating shaft 70 integrated with the latch 69 with a nut 104, and an eccentric pin 105 is fixed to the rotating lever 60.

As shown in FIG. 2, an electric motor 62 is attached to the lower portion of the door 10 together with the speed reducer 106.
A lever 110 having an eccentric pin 109 is fixed to the output shaft 108 of the.

The lower end of the tightening rod 61 is connected to the eccentric pin 109 of the lever 110, and the long hole 61a at the upper end of the tightening rod 61 is connected to the eccentric pin 105 of the rotating lever 60.

In the state shown in FIG. 3, the eccentric pin of the rotating lever 60 is
Since 105 is located in the middle of the long hole 61a of the tightening rod 61, the eccentric pin 105 swings in the long hole 61a when the turning lever 60 is rotated, that is, when the latch 69 is rotated. There is no obstacle to movement.

Instead of the elongated hole 61a, an elongated hole may be formed at the lower end of the tightening rod 61 and the elongated hole may be connected to the eccentric pin 109.

Next, when the position where the striker 71 slightly rotates the latch 69 is detected by turning off the unlock detection switch 101, the electric motor 62 starts rotating, and the eccentric pin 109 moves the tightening rod 61 downward. By moving the eccentric pin 105 at the upper end of the elongated hole 61a, the turning lever 60 is turned clockwise (FIG. 3), and the latch 69 is turned clockwise via the turning shaft 70. The lock position is forcibly rotated to the full lock position, the claw lever 72 engages with the full lock groove 69c of the latch 69, and the latch 69 is locked in the full lock position.

After that, when the electric motor 62 has just rotated once and stopped, the tightening rod 61 is moved upward to return to the initial position,
The tightening cycle of the latch 69 is completed.

As shown in FIG. 2, a long hole 88a is formed at the upper end of the inner lever 88, and the inner rod 91 is connected to the long hole 88a, while a lock release mechanism attached to the upper portion of the door 10. A plunger 114 of a solenoid 113 63 is connected to a lower end portion of the inner lever 88 via a plunger rod 115.

And, before the automatic opening and closing of the door 10, the solenoid
When 113 is excited, the plunger 114 moves to the left to rotate the inner lever 88 (FIG. 2) to release the latch 69 from the claw lever 72.

When the inner lever 88 is swung by the solenoid 113, the inner rod 91 is swung in the long hole 88a.
The inner handle does not move carelessly. On the contrary, when the inner lever 88 is swung by the inner handle, the inner rod 91 locks the end of the elongated hole 88a to lock the inner lever 88.
Is swung, and the plunger 114 also moves in and out accordingly, but there is no problem because the solenoid 113 is demagnetized.

A lock / unlock position detection switch 128 (see FIG. 7) is attached to the solenoid 113 to detect the position of the plunger 114.

The opening / closing mechanism 14 and the tightening mechanism 15 are controlled by a vehicle-mounted micro controller 120, as shown in FIG.

The opening / closing mechanism 14 is provided in the microcontroller 120.
The detection signal of the door opening detector (rotary encoder) 32 is input, and the control signal of the electric motor 21 is input.

Further, each signal of the power / one-touch switch 123, the power / auto switch 124, the power / operation lock switch 125, and the lock / unlock switch 126 of the manual operation switch 122 is input.

As shown in FIG. 8, the power one-touch switch 123 includes a fully open switch 123a and a fully closed switch 123b.
It is composed of a plurality of opening degree selection switches 123c to 123i having different opening degrees, and the fully open switch 123a and the fully closed switch 123b are switch operations to fully open or fully close the opening / closing mechanism 14, and the opening degree selection switches 123c to 123i. Is to open or close the opening / closing mechanism 14 to an opening corresponding to the switch by turning on an arbitrary opening selection switch.

The power auto switch 124 is an open switch 124a.
And the closing switch 124b, which opens or closes the opening / closing mechanism 14 during the switch operation.

The power operation lock switch 125 is for preventing the opening / closing mechanism 14 from operating even if the power one-touch switch 123 and the power auto switch 124 are operated. When the switch 125 is turned on, the door 10 can be opened / closed only manually.

The locking / unlocking switch 126 includes a locking switch 126a and an unlocking switch 126b.When the locking switch 126a is turned on, the solenoid 96 is excited to lock the lock knob, and when the unlocking switch 126b is turned on, the lock knob is unlocked. Locked.

Returning to FIG. 7, the microcontroller 120 is provided with a locking / unlocking position detection switch 127, a lock detection switch 102, an unlock detection switch 101, and the door provided on the solenoid 96 of the lock knob operating mechanism 64 of the door lock 12. Each detection signal of the lock / unlock position detection switch 128 provided in the solenoid 113 of the lock release mechanism 63 of the lock 12 is input, and the signals of the solenoids 96 and 113 are output.

Further, the micro controller 120 causes the electric motor 62 of the tightening mechanism 15 to be tightened after a predetermined time (for example, 0.25 seconds) has passed from the time when the latch 69 was slightly rotated. A control circuit that outputs a control signal is built in.

 The operation of the above configuration will be described below.

Door 10 in fully open position, switch for manual operation in the passenger compartment
When the fully-closed switch 123b of 122 is turned on, the electric motor 21 is driven, and the push / pull member 18 is pulled into the door 10 by the clockwise rotation of the sector gear 19 of the opening / closing mechanism 14,
10 will be closed automatically.

Immediately before the door 10 is fully closed, the striker 71 on the vehicle body side comes into contact with the latch 69 at the unlock position of the door lock 12, and the latch 69
Begins to rotate.

When the unlock detection switch 101 detects the position where the latch 69 is slightly rotated, the electric motor 62 of the tightening mechanism 15 is detected.
Starts to rotate, and the rotation lever 60
Is rotated to forcibly rotate the latch 69 from the half lock position to the full lock position via the rotation shaft 70.

When the latch 69 is rotated to the full lock position, the claw lever 72 engages with the full lock groove 69c, the latch 69 is locked in the full lock position, and the striker 71 is also locked in the same position, so that the door is closed. 10 is completely closed and locked.

When the door 10 is fully closed, the electric motor 21 of the opening / closing mechanism 14 stops.

The electric motor 62 of the tightening mechanism 15 stops by rotating once, and the tightening cycle of the latch 69 ends.

The one-touch closing routine for the automatic door closing is as shown in FIG.

That is, when the fully closed switch 123b is turned on in step S1,
The motor 21 is turned on in step S2.

Next, in step S3, the current opening of the door 19 and the fully closed opening are compared, and if they do not match (not fully closed), step S4
Check if there is an overload on the closing operation of the door 10 (
10) and the car body 11) is judged, and if no, in step S5 it is detected whether the unlock detection switch 101 of the door lock 12 is on or off, and if it is off. , In step S6, the tightening mechanism 15 is operated.

After that, the motor 21 is turned off in step S7, and step S8
The detection position of the rotary encoder 32 (door opening detector) of the opening / closing mechanism 14 is adjusted to the origin with, and the process ends in step S9.

If they match (fully closed) in step S3 and if the answer is YES in step S4, the motor 21 is turned off in step S10, and the process ends in step S9.

The concrete tightening routine of the tightening mechanism 15 in steps S5 and S6 is as shown in FIG.

The process starts in step S20, and in step S21 it is detected whether the unlock detection switch 101 is on or off. If it is off, a timer (about 0.25 seconds) is set in step S22.

Then, in step S23, it is detected whether the lock detection switch 102 is on or off, and if it is off, and if the time is over in step S24, it can be determined that the latch 69 has not been rotated to the full lock position, and thus step S25. The electric motor 62 of the tightening mechanism 15 is turned on to perform the tightening operation, and when the tightening is completed in step S26, the electric motor 62 is turned off in step S27, and the process ends in step S28.

On the other hand, if the lock detection switch 102 is turned on in step S23, a timer (about 0.25 seconds) is set in step S29.

Then, in step S30, it is detected whether the lock detection switch 102 is on or off, and if it is on and the time is over in step S31, it can be determined that the latch 69 is rotated to the full lock position. The process ends at step S28 without performing steps S27 to S27.

As a result, the electric motor 62 is tightened only when a predetermined time (about 0.25 seconds) has passed from the time when the striker 71 slightly rotated the latch 69.

Therefore, when the door 10 is suddenly closed, the latch 69 is rotated to the full lock position before a predetermined time (about 0.25 seconds) has elapsed since the striker 71 slightly rotated the latch 69. , The idle tightening operation by the electric motor 62 and the tightening rod 61 is not performed.

Therefore, even when the door 10 that is closed suddenly is opened suddenly, the electric motor 62 and the tightening rod 61 do not perform the idling tightening operation, so that the problem that the door 10 is closed by the tightening mechanism 15 is eliminated. Of.

[Brief description of drawings]

FIG. 1 is a front view of an automatic opening / closing device for an automobile door according to the present invention, FIG. 2 is an enlarged front view of a tightening mechanism, FIG. 3 is a front view of a door lock, and FIG. 4 is I of FIG. -I line sectional view, FIG. 5 is a rear view of FIG. 3, FIG. 6 is a left side view of FIG. 3, FIG. 7 is a control block diagram, FIG. 8 is a front view of a manual operation switch, Figure 9 is a flow chart of the one-touch closing operation,
FIG. 10 is a flowchart of the tightening operation. 10 …… Side door for automobile, 11 …… Body, 12 …… Door lock, 14 …… Opening / closing mechanism, 15 …… Tightening mechanism, 61 …… Tightening rod, 61a …… Long hole, 62 …… Electric motor , 69 …… Latch, 71 …… Strike, 120 …… Micro controller.

Claims (1)

(57) [Scope of utility model registration request] 1. A door opening and closing device for an automobile having a tightening mechanism for tightening a door lock latch by an actuator, wherein the latch allows free rotation between an unlock position and a full lock position. The actuator is provided with a control circuit for tightening the actuator after a predetermined time has elapsed in that state from the time when the latch is in the predetermined positional relationship with the striker. An opening / closing device for an automobile door, which is characterized by being