JPH0372184A - Automatic opening/closing device of door for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in automatic door opening/closing devices for automobiles.

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

Additionally, a system has been proposed in which an electromagnetic clutch is installed between the opening/closing mechanism and the actuator (dynamic motor and speed reducer), and the clutch is disconnected to allow the door to be opened and closed manually. (Sho 58-76671)
.

(Problems to be Solved by the Invention) By the way, the electromagnetic clutch for connecting and connecting the opening/closing mechanism and the actuator has become large in order to obtain torque.
The problem is that it is difficult to integrate into the door.

Additionally, there is a problem that the door lacks durability, and it is difficult to maintain the accuracy with which the door opens and closes due to slippage.

The present invention was made to solve the above problems, and
The purpose of this invention is to provide a new manual/automatic switching planetary gear type clutch mechanism that is small, reliable in operation, and highly durable.

(Means for Solving the Problems) Therefore, the present invention provides an automatic door opening/closing device for an automobile equipped with an opening/closing mechanism for opening/closing the door using a first actuator, in which the door is moved between the fully open position and the fully open position via a push/pull member. a sector gear operated between closed positions; an output gear driven by an actuator; an intermediate gear supported coaxially with the output gear and meshed with the sector gear; supported by the intermediate gear and meshed with the output gear. a planetary gear; an internal gear that is supported coaxially with the output gear and meshes with the planetary gear; and saw teeth that are moved in and out by a second actuator and formed on the outer periphery of the internal gear when the second actuator is operated. This device is characterized by being provided with a manual/automatic switching clutch mechanism consisting of a clutch member that meshes with each other to prevent rotation of the internal gear.

(Function) When the second actuator is activated, the clutch member moves forward and engages with the saw teeth of the internal gear to prevent rotation of the internal gear, while when the second actuator is not activated, the clutch member moves backward and engages with the saw teeth of the internal gear. The internal gear disengages from the saw, allowing the internal gear to rotate.

Therefore, when the second actuator is operated, the clutch member meshes with the internal gear to prevent rotation of the internal gear, so when the first actuator rotates forward or backward, the output gear causes the planetary gear to move between the internal gear and the internal gear. The intermediate gear is rotated by the planetary gear, and the sector gear is rotated to the left or right.

In addition, when the second actuator is inactive, the clutch member does not mesh with the internal gear and allows the internal gear to rotate, so when the sector gear rotates to the left or right when the door is manually opened or closed, the intermediate gear rotates. The planetary gear rotates around the output gear while dragging the internal gear. As a result, when the door is manually opened/closed, the first actuator (reducer and t-motor) is not rotated, so the opening/closing operation does not become heavy.

(Effects of the Invention) The present invention has a simple structure because a planetary gear type clutch mechanism is configured by an output gear, an intermediate gear, a planetary gear, an internal gear, and a clutch member driven by a second actuator. It operates reliably, has high durability, and is easy to switch between manual and automatic mode by simply activating or deactivating the second actuator.

Further, an electromagnetic clutch is large in size in order to obtain torque, but a real planetary gear type clutch mechanism can secure sufficient torque and can be made smaller.

(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the front end of the automobile side door 1o is attached to the vehicle body 11 via a hinge mechanism (not shown) so that it can be opened and closed.
11 Door lock (lock mechanism) for locking 12
is installed.

Note that 13 is a window glass.

At the front of the door 10, an actuator (
An opening/closing mechanism 14 that is opened and closed by an electric motor 21) is attached to the rear of the door 10, and a tightening mechanism 15 that tightens the latch of the door lock 12 by an actuator (electric motor 62) is attached to the rear of the door 10.

Then, the opening/closing mechanism 14 operates the door lO between the fully open position and the fully open position, while the tightening mechanism 1
5, when the door lO is closed, a striker on the vehicle body l operates the latch of the door lock 12 from a slightly rotated position to a fully locked position.

As shown in detail in FIGS. 2 and 3, the opening/closing mechanism 14 includes a push/pull member 18, a sector gear 19, a manual/automatic switching (planetary gear type) clutch mechanism 20, and an electric motor 21. Basically configured.

The push/pull member 18 has one end 18a connected to the vehicle body 11, and the other end 18b connected to the operating arm 19a of the sector gear I9.

The sector gear 19 is rotatably attached to a base board 24 fixed within the door 10 about a rotation shaft 25.

When the sector gear 19 is rotating clockwise (in the direction of the hour hand) as shown in FIG.
When the button rotates to the left (counterclockwise direction), the push/pull member 18 moves toward the door 1.
0 is pushed outside and the door 10 is opened.

The sector gear 19 is formed with an elongated hole 19b whose radius is the center of rotation (rotation axis 25) of the sector gear 19, and the inner and outer arc edges of the elongated hole 19b are provided with holes for half-opening and fully opening the door. recessed portion 19c corresponding to each opening degree.

19d is formed.

A blanket 26 facing into the elongated hole 19b of the sector gear 19 is fixed to the base substrate 24, and the blanket 26 is always in contact with the outer arc edge of the elongated hole 19b, and is attached to each recess 19c, 19d. rollers 27, 2 that can be engaged and detached from
A check spring 2828 having a diameter of 7 is fixed.

Therefore, each of the check springs 28, 28 provides moderation for each degree of opening when the sector gear 19 rotates, that is, when the door 10 is manually opened/closed.

A protrusion 19f is provided on the inner edge of the elongated hole 19b of the sector gear 19, and the protrusion 19f comes into contact with the base board 24 when the sector gear 19 is rotated to the right (fully closed position) and turned on. Fully closed detection switch 29 and sector gear 1
A fully open detection switch 30 is attached which is turned on when the protrusion 19f comes into contact with the protrusion 19f at the left rotation position (full open position).

A rotary encoder (door opening degree detector) 32 is attached to the base substrate 24 and rotated by a gear 31 meshing with the sector gear 19, and the degree of opening of the door 10 is detected by the rotary encoder 32.

In the planetary gear type clutch mechanism 20, a motor board 36 is fixed to the base board 24 via a plurality of supports 35, and the electric motor 21 is attached to the motor board 36 together with a speed reducer 37.

A small diameter output gear (sun gear) 40 is fixed to the output shaft 39 of the reduction gear 37.

A pin 4 is attached to the base board 24 coaxially with the output gear 40.
1 supports an intermediate gear 42, which meshes with the sector gear 19.

The intermediate gear 42 includes three planetary gears 43 that mesh with the output gear 40. ..., 43 is pin 44. ...44
Each is supported by

A base portion 45a of an internal gear 45 is rotatably supported on the motor board 36 coaxially with the output gear 40, and the internal gear 45 meshes with each of the planetary gears 43. Saw teeth 45b are formed on the outer periphery of the internal gear teeth 45.

A solenoid 47 is fixed to the base board 24, and one end of a connecting lever 50 supported by a pin 49 on the base board 24 is connected to the plunger 48 of the solenoid 47. It is connected to a clutch member 51 that is reciprocatably supported by the base plate 24.

A sawtooth portion 51a that can mesh with the sawtooth 45b of the internal gear 45 is formed at the front portion of the clutch member 51.

When the solenoid 47 is energized, the clutch member 51 moves forward by retracting the plunger 48 and turning the connecting lever 50 to the right (around the hour hand), so that the sawtooth portion 51a meshes with the sawtooth 45b of the internal gear 45, and the inner While preventing the rotation of the gear 45, when the solenoid 47 is demagnetized, the plunger 48 protrudes by the biasing force of the spring 52, and the linking lever 50 is rotated counterclockwise (counterclockwise) to move back.
The sawtooth portion 51a disengages from the sawtooth 45b of the internal gear 45, allowing the internal gear 45 to rotate.

Therefore, when the solenoid 47 is energized, the clutch member 51 meshes with the internal gear 45 and prevents the internal gear 45 from rotating. Therefore, when the electric motor 21 rotates forward or backward, the output gear 40 engages the internal gear 45 and prevents the internal gear 45 from rotating. The planetary gear 43 performs a planetary rotation movement between the intermediate gear 4 and the intermediate gear 4.
2 is rotated to rotate the sector gear 19 to the left or right.

Furthermore, when the solenoid 47 is demagnetized, the clutch member 51
does not mesh with the internal gear 45 and allows the internal gear 45 to rotate, so when the door 10 is manually opened and closed, the sector gear 1
9 rotates to the left or right, the intermediate gear 42 is rotated, and the planetary gear 43 rotates around the output gear 40 while rotating the internal gear 45. As a result, when the door 10 is manually opened/closed, the speed reducer 37 and the electric motor 21 are not rotated, so that the opening/closing operation does not become heavy.

On the other hand, although not shown in detail, the tightening mechanism 15 of the door lock 12 basically includes a tightening rod 61 that rotates a rotation lever that forcibly rotates the latch, and an electric motor 62. The door lock 12 is provided with a lock release mechanism 63 and a lock knob actuation mechanism 64.

The latch is provided with an unlock position detection switch 101 and a lock position detection switch 102.

The opening/closing mechanism 14. The tightening mechanism 15 is controlled by an on-vehicle microcontroller 120, as shown in FIG.

The microcontroller 120 includes the opening/closing mechanism 1
4. Door opening degree detector (rotary encoder) 32. Fully open detection switch 30. Each detection signal of the fully closed detection switch 29 is inputted, and a control signal of the electric motor 21° solenoid 47 is outputted.

Also, the power one-touch switch 123 of the manual switch 122. Power/auto switch 124, power/operation lock switch 125. Lock/unlock switch 12
6 signals are input.

As shown in FIG. 5, the power one-touch switch 123 includes a fully open switch 123a and a fully closed switch 123a.
3b, and a plurality of opening selection switches 1230 with different opening degrees.
- 1231, and the fully open switch 123a and the fully closed switch 123b open and close the opening/closing mechanism 14 by switch operation.
fully open or close, and press the opening degree selection switch l23.
c-1231 is for opening or closing the opening/closing mechanism 14 to the opening degree corresponding to the switch by turning on an arbitrary opening degree selection switch.

The power auto switch 124 is the open switch 12
4a and the close switch 124b, and the opening/closing mechanism 14 is opened or closed during the switch operation.

The power operation lock switch 125 includes a power one-touch switch 123 and a power auto switch 12.
This is to prevent the opening/closing mechanism 14 from operating even if the opening/closing mechanism 4 is operated. If this switch 125 is turned on, the door 10 can be opened and closed only manually.

The lock/unlock switch 126 is the lock switch 126
a and the unlock switch 126b, and the lock switch 12
When the solenoid 6a is turned on, the solenoid 96 is energized and the lock knob is locked, and when the unlock switch 126b is turned on, the lock knob is unlocked.

Returning to FIG. 4, the microcontroller 120 includes a lock/unlock position detection switch 12 provided in the solenoid 96 of the lock knob operating mechanism 64 of the door lock 12.
7. Lock detection switch 102, unlock detection switch 101. Each detection signal of the lock/unlock position detection switch 128 provided in the solenoid 113 of the unlocking mechanism 63 of the door lock 12 is inputted, and the control signal of the solenoid 96.113 is outputted.

Further, the microcontroller 120 outputs a control signal to the electric motor 62 of the tightening mechanism 15.

The operation of the above configuration will be explained next.

(1) When the automatic closing door lO is in the fully open position and the fully closing switch 123b of the manual switches 122 inside the vehicle is turned on,
When the solenoid 47 of the opening/closing mechanism 14 is excited, the clutch member 51 meshes with the internal gear 45 to prevent rotation of the internal gear 45. At the same time, the electric motor 21 rotates forward, and the output gear 40 causes the internal gear to rotate. 45, the planetary gear 43 makes a planetary rotation movement between the intermediate gear 4 and the intermediate gear 4.
2 is rotated, and the sector gear 19 is rotated clockwise.

By clockwise rotation of the sector gear 19, the push/pull member 18 moves toward the door 1.
0, and the door lO is automatically closed.

Immediately before the door 10 is fully closed, a striker on the vehicle body contacts the latch of the door lock 12 at the unlocked position, and the latch begins to rotate.

When the unlock detection switch 101 detects the slightly rotated position of the latch, the electric motor 6 of the tightening mechanism 15
2 starts rotating, the rotation lever is rotated via the tightening rod 61, and the latch is forcibly rotated from the half-lock position to the full-lock position via the rotation shaft.

When the latch is rotated to the full lock position, the claw lever engages with the full lock groove, the latch is locked to the full lock position, and the striker is also locked to the same position, thereby locking the door 10 fully closed.

When the door 10 is fully closed, the fully open detection switch 29
, and the electric motor 21 of the opening/closing mechanism 14 is stopped.

The electric motor 62 of the tightening mechanism 15 rotates to the top and stops, completing the latch tightening cycle.

(2) When the automatic opening door lO is in the fully closed lock position and the fully open switch 123a of the manual switches 122 inside the vehicle is turned on, the solenoid 113 of the lock release mechanism 63 is energized, and the plunger that moves to protrude is activated. By swinging the open lever with the plunger rod 115 via the inner lever 88, bush lever, and link, the latch is released from the latch by the claw lever.

This releases the striker lock by the latch.

Further, when the solenoid 47 of the opening/closing W& mechanism 14 is energized, the clutch member 51 meshes with the internal gear 45 to prevent the internal gear 45 from rotating.
1 is reversed, the planetary gear 43 rotates planetarily between the output gear 40 and the internal gear 45, the intermediate gear 42 is rotated by the planetary gear 43, and the sector gear 19 is rotated to the left.

The push/pull member 18 moves toward the door 1 by counterclockwise rotation of the sector gear 19.
0, the door 10 opens automatically,
When the fully open position is detected by the fully open detection switch 30, the electric motor 21 is stopped.

(3) When the manual closing door 10 is in the fully open position and the manual switch 122 inside the vehicle is not turned on, the solenoid 47 of the opening/closing mechanism 14 is demagnetized, so the clutch member 5
1 does not mesh with the internal gear 45, and rotation of the internal gear 45 is allowed.

Then, when the door 10 is manually closed, the restraining member 18
is pushed into the door 10, the sector gear 19 is rotated clockwise, the intermediate gear 42 is accordingly rotated, and the planetary gear 43 rotates around the output gear 40 while rotating the internal gear 45.

During this manual door closing, the reducer 37 and electric motor 21 are not rotated from the sector gear 19 side, so the door closing operation can be easily performed.

Immediately before the door 10 is fully closed, the striker on the vehicle body comes into contact with the latch in the unlocked position of the door lock 12, and after the latch is rotated slightly, the tightening mechanism 15 is activated in the same way as in (1). The latch is forcibly rotated, and the door 10 is fully closed and locked.

(4) Manual door opening When the inner handle or outer handle is pulled, the link of the door lock 12 is moved down via the inner rod or outer rod, and by swinging the open lever, the latch is released by the claw lever I. Release the lock.

This releases the striker lock by the latch.

Further, since the solenoid 47 of the opening/closing mechanism 14 is demagnetized, the clutch member 51 does not mesh with the internal gear, and rotation of the internal gear 45 is allowed.

Then, when the door 10 is opened manually, the push/pull member I8
is pulled out of the door 10, the sector gear 19 is rotated to the left, the intermediate gear 42 is accordingly rotated, and the planetary gear 43 rotates around the output gear 40 while rotating the internal gear 45.

Even when the door is opened manually, the speed reducer 37 and the electric motor 21 are not rotated from the sector gear 19 side, so the door opening operation can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a front view of an automobile door opening/closing device according to the present invention, FIG. 2 is an enlarged front view of the opening/closing mechanism, FIG. 3 is a sectional view of the main part of FIG. 2, and FIG. 4 is a control block diagram. FIG. 5 is a front view of the manual switch. 10... Automobile side door, 11... Vehicle body, 12
... Door rotor, 14... Opening/closing mechanism, 18... Push/pull member, 19... Sector gear, 20... Manual/automatic switching clutch mechanism, 21... Electric motor, 40...
...Output gear, 42...Intermediate gear, 43...Planetary gear, 45...Internal gear, 45a...Sawtooth, 47...
・Solenoid, 51...Clutch member, 51a...
Sawtooth section.

Claims (1)

[Claims] (1) An automatic door opening/closing device for an automobile equipped with an opening/closing mechanism that opens and closes the door using a first actuator, which comprises: a sector gear that operates the door between a fully open position and a fully closed position via a push/pull member; 1 an output gear driven by an actuator, an intermediate gear supported coaxially with the output gear and meshing with the sector gear, a planetary gear supported by the intermediate gear and meshing with the output gear, and a planetary gear coaxial with the output gear. an internal gear that is supported and meshes with the planetary gear; and an internal gear that is moved in and out by a second actuator, and when the second actuator is operated, engages with saw teeth formed on the outer periphery of the internal gear to prevent rotation of the internal gear. An automatic opening/closing device for an automobile door, characterized in that it is provided with a manual/automatic switching clutch mechanism consisting of a clutch member.