JPH094323A - Slide door drive unit - Google Patents

Abstract

PURPOSE: To shrink the vertical storage space of a slide door drive unit and manually operate a slide door when a planetary gear mechanism fails. CONSTITUTION: The first and second planetary gear mechanisms are installed around a transmission shaft 30 rotatively driven by a motor 18 via the first rotation transmission mechanism 31 at the position apart in the lateral direction from the motor 18 on a base 22. A drive roller 19 and a guide roller 21 pinching a part of a guide rail are installed on the base 22 near the tip section of an arm 13 connected rotatably centering on the transmission shaft 30. The first internal gear 5 of the first planetary gear mechanism is connected to the third drive pulley 4 of the second rotation transmission mechanism 32, and the second internal gear 2 is connected to the arm 13 integrally rotatably and removably. When the second internal gear 12 is removed from the arm 13, the drive roller 19 and the arm 13 can be rotated at the time of a failure of one of the first and second planetary gear mechanisms.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide door, for example, a slide door drive unit for automatically opening and closing an opening by driving a slide door for a vehicle.

[0002]

2. Description of the Related Art As a conventional technique, for example, Japanese Patent Publication No. 2-2
There is one disclosed in Japanese Patent No. 9154.

[0003]

However, according to this structure, since the output shaft of the motor is directly connected to the sun gear of the planetary gear mechanism, a large motor having a large driving force is required. Further, since the output shaft of the motor and the central shaft of the arm are arranged in series, the height of the drive unit becomes high, and the height may be limited, so that the drive unit may not be installed in a space. In addition, there is a problem that the sliding door cannot be opened when foreign matter is caught between the gears of the planetary gear mechanism or the rotation speed reduction device. Therefore, in the present invention, the motor can be downsized, and the height of the unit can be reduced,
Another object of the present invention is to provide a slide door drive unit capable of manually moving the slide door when foreign matter is caught between the gears of the rotation speed reduction device.

[0004]

According to a first aspect of the present invention, a base, a motor provided at one end of the base such that its output shaft is vertical, and another end of the base parallel to the output shaft of the motor. An arm rotatably provided around an axis, a drive roller rotatably provided at the tip of the arm, a guide roller for holding the guide rail fixed to the slide door by the drive roller, and an arm of the arm. A first planetary gear mechanism including a sun gear, a planetary gear, and an internal gear arranged at the center of rotation, and a first planetary gear mechanism that decelerates the rotation of the output shaft of the motor and transmits it to the sun gear of the first planetary gear mechanism. A rotation transmission mechanism, a second rotation transmission mechanism that transmits the rotation of the internal gear due to the rotation of the planetary gear of the first planetary gear mechanism to the drive roller, and the revolution of the planetary gear of the first planetary gear mechanism. Decelerates the rotation of the carrier of the planetary gear, characterized in that a second planetary gear mechanism for transmitting to the arm that.

The invention of claim 2 is characterized in that the second planetary gear mechanism and the arm can be freely contacted and separated from the outside.

[0006]

In the invention of claim 1, the output shaft 18 of the motor 18 is
When the rotation of a is transmitted to the first sun gear 6 of the first planetary gear mechanism by the first rotation transmission mechanism 31, the drive roller 1
When the rotation of 9 is restricted, the first internal gear 5 of the first planetary gear mechanism is stationary, and the first planetary gear 8 is in the first position.
The rotation of the sun gear 6 causes the first carrier 7 to rotate together with the second sun gear 10 of the second planetary gear mechanism,
The rotation of the second sun gear 9 is made second by the second planetary gear 10.
The second internal gear 10 is transmitted to the internal gear 12 to decelerate and rotate, and the arm 13 rotates. Arm 1
When the rotation of No. 3 is restricted, the second internal gear 1
When the second sun gear 9 and the first carrier 7 are stationary while the second sun gear 9 and the first carrier 7 are stationary, the first planetary gear 8 rotates at a fixed position by the rotation of the first sun gear 6, and the first internal gear 5 decelerates and rotates. The rotation is transmitted to the drive roller 19 by the second rotation transmission mechanism 32, and the drive roller 19 is rotationally driven.

According to the second aspect of the present invention, gear debris or foreign matter is caught between the first planetary gear 8 and the first internal gear 5 or the first sun gear 6, so that the first planetary gear 8 rotates. Even if it becomes impossible, if the second internal gear 12 is separated from the arm 13, the arm 13 rotates independently of the second internal gear 12 when the slide door is manually moved, and the driving roller Even if the first internal gear 5 rotates integrally with the first carrier 7 and the second sun gear 9 by the rotation of 19, the rotation of the second sun gear 9 is caused by the second planetary gear 10 to cause the second internal gear 12 to rotate.
Then, the second internal gear 12 idles and the drive roller 19 is allowed to rotate freely. In addition, gear debris or foreign matter is caught between the second planetary gear 10 and the second internal gear 12 or the second sun gear 9, so that the second
Even if the planetary gear 10 cannot rotate, when the second internal gear 12 is separated from the arm 13, the rotation of the arm 13 becomes free, and the rotation of the first internal gear 5 and the first planetary gear 8 Since the rotation of the first sun gear 6 and the rotation of the first sun gear 6 are possible, the rotation of the drive roller 19 is also free.

[0008]

According to the first aspect of the invention, the motor 18 is arranged so that the output shaft 18a thereof is perpendicular to one end of the base 22.
Is provided, and the output shaft 1 of the motor 18 is provided at the other end of the base 22.
An arm 13 is provided so as to be rotatable about an axis parallel to 8a, and a motor 18 is provided via a first rotation transmission mechanism 31 to a first planetary gear mechanism arranged at the rotation center of the arm 13.
Since the rotation of the output shaft 18a of the slide door drive unit is decelerated and transmitted, the height of the entire slide door drive unit can be reduced to reduce the vertical storage space occupied by the slide door drive unit. When the door drive unit is mounted on an automobile, it is possible to solve the problem that the height is restricted.

According to the second aspect of the invention, since the second internal gear 12 can be separated from the arm 13,
Even when one of the gears of the first and second planetary gear mechanisms cannot rotate due to foreign matter being caught, the slide door can be manually moved.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. The slide door 24 that opens and closes the opening B opened on the side surface A1 of the vehicle body A of the automobile is stored in the opening B, and the opening B is fully closed by the slide door 24. Of the vehicle body A and the side surface A1 of the vehicle body A are substantially aligned with each other, and a state in which the slide door 24 is bent obliquely rearward from the fully closed position and advanced obliquely rearward of the fully closed position. And the sliding door 24 from this advance position to the vehicle body A
Goes straight to the rear along the side surface A1 on the outside of the opening B
Is guided by a guide mechanism (not shown) to the fully open position where the is fully opened.

The guide mechanism has a curved guide portion curved in an arc shape and a linear rectilinear guide portion formed behind the curved guide portion, and comprises a proper number of fixed parts fixed to the vehicle body 1. The guide rail, a support arm fixed to the slide door 24, and a roller rotatably supported at the tip of the support arm.

On the inner surface of the slide door 24, a mounting plate 25a fixed to the inner surface, and the mounting plate 25a.
And a guide plate 25b joined together with an engaging portion 25c interposed therebetween, and a guide rail 25 installed horizontally along the inner side surface of the slide door 24 is attached.

In a slide door drive unit for automatically opening and closing the opening B by driving the slide door 24, a hollow and horizontally long base 22 is fixed to the floor of the vehicle body A in the opening B. It is installed facing each other.

A motor 18 is installed on one end of the base 22 so that the output shaft 18a is vertically installed so as to be vertical and is driven to rotate in the forward and reverse directions by a switch operation. The output shaft 18a of the motor 18 is mounted on the output shaft 18a. The first drive pulley 26 is fixed.

An intermediate shaft 27, which is rotatably supported by bearings and installed vertically, is provided near the center of the base 22.
Is inserted.

An electromagnetic portion 28a of an electromagnetic clutch 28, which is excited and demagnetized by turning a switch on and off, is fixed to an upper portion of the intermediate shaft 27, and a first driven pulley 16 is fixed to the electromagnetic portion 28a. The first conductive belt 17 is wound around the 16 and the first drive pulley 26, and the rotation speed is reduced during this period.

A second drive pulley 29 connected to a driven portion 28b of the electromagnetic clutch 28 is rotatably fitted to the lower portion of the intermediate shaft 27 via a bearing, and when the electromagnetic portion 28a of the electromagnetic clutch 28 is excited. The second drive pulley 29 is integrally and rotatably coupled to the first driven pulley 16, and when the electromagnetic portion 28a of the electromagnetic clutch 28 is demagnetized, the second drive pulley 29 is
The drive pulley 29 is separated from the first driven pulley 16.

At the other end of the base 22, a transmission shaft 30 is rotatably supported by a bearing and vertically inserted into the base 22 at a position laterally separated from the motor 18.

A second driven pulley 1 is attached to the lower end of the transmission shaft 30.
4 is fixed, the second driven belt 14 and the second drive pulley 29 are hooked with the second conductive belt 15, and the rotation of the output shaft 18a of the motor 18 is caused by the rotation of the first drive pulley 26,
By the first driven pulley 16, the first conductive belt 17, the electromagnetic clutch 28, the second drive pulley 29, and the first rotation transmission mechanism 31 configured by the second driven pulley 14 and the second conductive belt 15. It is transmitted to the transmission shaft 30.

On the base 22, an arm 13 is connected to the other end of the base 22 via a transmission shaft 30 and a bearing so as to be rotatable in the horizontal direction about the transmission shaft 30 as a rotation center.
And a cylindrical gear case 13a, through which the transmission shaft 30 is inserted, is formed at the base end of the arm 13.

At the base end of the belt cover 1 connected to the arm 13 and installed on the arm 13, a support shaft 33 installed concentrically with the transmission shaft 30 is inserted directly above the transmission shaft 30. The third drive pulley 4 is rotatably fitted to the shaft 33 via a bearing.

A roller shaft 20 rotatably supported by a bearing and installed vertically is inserted through the arm 13 and the tip of the belt cover 1.

A third driven pulley 3 is provided above the roller shaft 20.
Is rotatably fitted through a bearing, and the third driven belt 3 is hooked on the third driven pulley 3 and the third drive pulley 4.

A lower portion of the roller shaft 20 has an outer peripheral portion formed of a rubber material, and a driving roller 19 for driving the slide door 24 in a state of being pressed against the guide plate 25b of the guide rail 25 is rotatably fitted. The drive roller 19 is integrally and rotatably connected to the third driven pulley 3.

A third drive pulley 4 is provided in the belt cover 1.
A second rotation transmission mechanism 32, which is composed of the third driven pulley 3 and the third conductive belt 2 and is driven together with the drive roller 19, is installed.

The lower end of the roller shaft 20 has an arm 1 at the tip.
A bracket 34 projecting outwardly of 3 is rotatably coupled in a horizontal direction, and the upper end of a roller shaft 34a coupled to the tip of the bracket 34 is inserted into an engaging portion 25c of a guide rail 25. Guide plate 25b to drive roller 1
The guide rail 25 and the arm 1 are sandwiched between the guide rail 25 and the arm 1.
A guide roller 21 that connects the roller 3 and the roller 3 is rotatably fitted.

Drive roller 19 and guide roller 21
When the arm 13 rotates, the arm 13 horizontally moves circularly around the transmission shaft 30 while holding the guide plate 25b of the guide rail 25, and the slide door 24 moves the drive roller 1
Following the circular arc movements of the guide roller 21 and the guide roller 21, they are extruded outward and drawn inward.

Around the transmission shaft 30 in the gear case 13a of the arm 13, a first sun gear 6 integrally formed with the transmission shaft 30 near the upper end of the transmission shaft 30, and a transmission below the first sun gear 6. The first carrier 7 rotatably supported by the shaft 30 and the first sun gear 6 are engaged with each other in the first
A first planetary gear 8 rotatably coupled to the carrier 7,
The first planetary gear 8 is rotatably supported by the transmission shaft 30 and the gear case 13a via bearings 36 and 37 in a state of being meshed with the first planetary gear 8, and is integrally rotatably coupled to the third drive pulley 4 to form a second A first planetary gear mechanism including a first internal gear 5 connected to a rotation transmission mechanism 32, and a first planetary gear mechanism, which is rotatably supported below a first sun gear 6 by a transmission shaft 30 and integrally with a first carrier 7. A second sun gear 9 rotatably coupled to the second sun gear 9 and a second sun gear 9 installed below the second sun gear 9 and fixed to the base 22. The transmission shaft 30 is rotatably inserted through a bearing 38 at the center. A carrier 11 and a second planetary gear 10 rotatably coupled to the second carrier 11 in a state of meshing with the second sun gear 9,
The gear case 13 meshes with the second planetary gear 10.
a second internal gear 12 which is fitted tightly in a and is integrally rotatable and separably coupled to the gear case 13a by an externally settable set screw 40. And a planetary gear mechanism.

When the motor 18 is rotationally driven with the slide door 24 stored in the fully closed position, the transmission shaft 30 rotates and the first sun gear 6 rotates, but the slide door 24 moves in the front-rear direction. Is regulated to regulate the rotation of the drive roller 19, and the third driven pulley 3 and the third drive pulley 4 are regulated.
Since the rotation of the first internal gear 5 is restricted due to the rotation of the first internal gear 5, the first planetary gear 8 revolves around the first sun gear 6 as the transmission shaft 30 rotates, and the first carrier 7 and The second sun gear 9 rotates, and the rotation of the second sun gear 9 is changed by the second planetary gear 10 to the second internal gear 1.
2 and the second internal gear 12 is transmitted to the transmission shaft 30.
Decelerates at the minimum deceleration speed in the opposite direction to
The arm 13 rotates outward with the rotation of the second internal gear 12.

When the arm 13 rotates outward, the slide door 24 is pushed outward by the driving roller 19 and moves in a curved manner from the fully closed position to the advanced position.

When the arm 13 pivots to the outward pivotal end and the slide door 24 moves to the advanced position, the pivotal movement of the arm 13 to the exterior is restricted and the rearward movement of the slide door 24 is prevented. In the permitted state, the rotation restriction of the drive roller 19, the driven pulley 3, and the drive pulley 4 is released, and the rotation restriction of the first internal gear 5 is released.

When the rotation of the arm 13 is restricted, the second internal gear 12 and the second sun gear 9 are stationary, the first carrier 7 is stationary, and the rotation of the first sun gear 6 is rotated by the first planetary gear 8. All the power is transmitted to the first internal gear 5, the first internal gear 5 decelerates and rotates, and the third drive pulley 4 and the third driven pulley 3 rotate to drive the drive roller 19
Is driven to rotate in the door opening direction (P direction), the slide door 24 is pushed backward by the rotation of the drive roller 19, and moves straight from the advanced position to the fully open position, and the movement of the slide door 24 to the fully open position is detected by the sensor. When detected, the motor 18 stops rotating and the slide door 24 stops at the fully open position.

Further, the motor 18 is rotationally driven in the reverse rotation direction while the slide door 24 is held at the fully open position, the rotation of the arm 13 is restricted, and the movement of the slide door 24 in the door closing direction is allowed. Then, the arm 13 stands still and the second internal gear 12, the second sun gear 9 and the first
With the carrier 7 stationary, the rotation of the first sun gear 6 is transmitted to the first internal gear 5 by the second planetary gear 8 so that the first internal gear 5 and the drive roller 19 rotate in the door closing direction (Q direction). Driven and sliding door 24
Is pushed forward by the rotation of the drive roller 19 and moves straight from the fully open position to the advanced position.

When the slide door 24 moves to the advanced position, the forward movement of the slide door 24 is restricted, and the rotation restriction of the arm 13 is released, so that the drive roller 19 and the first internal gear 5 move. In a state where the rotation is restricted, the first planetary gear 8 revolves in the opposite direction by the rotation of the first sun gear 6, the first carrier 7 and the second sun gear 9 rotate in reverse, and the rotation of the second sun gear 9 causes the rotation of the second planetary gear. It is transmitted to the second internal gear 12 by the gear 10, the second internal gear 12 is decelerated in the reverse direction at the minimum deceleration speed, the arm 1 is rotated inward, and the slide door 24
Is attracted inward by the guide roller 21 and curvedly moves from the advanced position to the fully closed position, and stands still at the fully closed position.

Therefore, the slide door 24 can be smoothly moved in the curved and straight directions.

Further, since the transmission shaft 30 is installed at a position laterally separated from the motor 18, the height of the entire slide door drive unit is reduced to reduce the vertical accommodation space occupied by the slide door drive unit. Therefore, when the slide door drive unit is mounted on an automobile, it is possible to solve the problem that the height is restricted.

Further, since the rotational speed can be sufficiently reduced between the first drive pulley 26 and the first driven pulley 16, the second drive pulley 26
The diameter of the driven pulley 14 can be reduced.

When the set screw 40 is removed by a screw operation from the outside, the second internal gear 12 can be separated from the arm 13, so that the first planetary gear 8 and the first internal gear 5 or the first internal gear 5 or Even if gear debris or foreign matter is caught between the first sun gear 6 and the first planetary gear 8 and the first planetary gear 8 cannot rotate, when the second internal gear 12 is separated from the arm 13, the slide door 24 is opened. When the arm 13 is manually moved, the arm 13 rotates independently of the second internal gear 12, and the rotation of the drive roller 19 causes the first internal gear 5 to be integrated with the first carrier 7 and the second sun gear 9. Even if the second internal gear 12 rotates, the rotation of the second sun gear 9 is transmitted to the second internal gear 12 by the second planetary gear 10, and the second internal gear 12 idles.
The drive roller 19 can be freely rotated. Also, the second
Planetary gear 10 and second internal gear 12 or second
Even if gear debris or foreign matter is caught between the sun gear 9 and the second planetary gear 10 and the second planetary gear 10 cannot rotate, the arm 13 is separated when the second internal gear 12 is separated from the arm 13.
Since the rotation of the first internal gear 5 and the rotation of the first planetary gear 8 and the rotation of the first sun gear 6 are possible, the drive roller 19 can be rotated. For this reason, even if one of the first and second planetary gear mechanisms cannot rotate, the slide door 24 can be manually moved without difficulty, and the problem that the slide door 24 cannot be moved is eliminated. can do.

Further, the first sun gear 6 is formed integrally with the transmission shaft 30, and the transmission shaft 30 is inserted through the first internal gear 5, the first carrier 7, the second sun gear 9 and the second carrier 11, respectively. Since it is in the state, the shaft center of the transmission shaft 30, the first internal gear 5, the first carrier 7, the second
Misalignment between the sun gear 9 and the second carrier 11 can be eliminated, the first internal gear 5 and the first carrier 7 can be aligned, and the first carrier 7 and the second carrier 11 can be aligned.
Alignment with the center becomes unnecessary.

Further, the transmission shaft 30 and the output shaft 1 of the motor 18
Since the rotation transmission with 8a can be cut off, even if the transmission shaft 30 rotates due to the rotation of the arm 13 and the rotation of the drive roller when the slide door 24 is manually moved, the output shaft of the motor 18 does not rotate. The slide door 24 can be moved in a state where the rotational resistance of the slide door 18a is eliminated, and the operation force when manually operating the slide door can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an automobile.

FIG. 2 is a perspective view of a slide door drive unit showing one embodiment of the present invention.

FIG. 3 is an exploded perspective view of a slide door drive unit.

FIG. 4 is a vertical sectional view of a slide door drive unit.

FIG. 5 is a plan view of essential parts showing the relationship between the slide door and the slide door drive unit when the slide door moves from the fully closed position to the advanced position.

FIG. 6 is a plan view of essential parts showing the relationship between the slide door and the slide door drive unit when the slide door moves from the fully opened position to the advanced position.

[Explanation of symbols]

 5 1st internal gear 6 1st sun gear 7 1st carrier 8 1st planetary gear 9 2nd sun gear 10 2nd planetary gear 11 2nd carrier 12 2nd internal gear 13 arm 18 motor 19 drive roller 21 guide roller 22 base 24 sliding door 25 guide rail 30 transmission shaft 31 first rotation transmission mechanism 32 second rotation transmission mechanism

Claims (2)

[Claims] 1. A base, a motor provided at one end of the base such that its output shaft is vertical, and at the other end of the base rotatably about an axis parallel to the output shaft of the motor. An arm, a drive roller rotatably provided at the tip of the arm, a guide roller for holding the guide rail fixed to the slide door by the drive roller, a sun gear and a planetary gear arranged at the rotation center of the arm. , And a first planetary gear mechanism including an internal gear, a first rotation transmission mechanism that reduces the rotation of the output shaft of the motor and transmits the rotation to the sun gear of the first planetary gear mechanism,
The second rotation transmission mechanism that transmits the rotation of the internal gear to the drive roller due to the rotation of the planetary gears of the planetary gear mechanism and the rotation of the carrier of the planetary gears due to the revolution of the planetary gears of the first planetary gear mechanism are reduced. And a second planetary gear mechanism that transmits the lever to the arm. 2. The slide door drive unit according to claim 1, wherein the second planetary gear mechanism and the arm can be brought into contact with and separated from the outside.