JP2001132332A - Slide door drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the looseness of a cable by reducing the number of part items. SOLUTION: This slide door drive device comprises a cable 15 allowing at least one end of an openable slide door 1 to be fixedly connected thereto, a winding drum 21 delivering or winding up the cable 15 from or on a winding surface 19 thereof a drive motor 23 providing a rotating power to the winding drum 21, and a tensioner 25 eliminating the looseness of the cable 15 occurred when the slide door 1 is opened and closed. The tensioner 25 is installed on a fixed unit 29, and the winding drum 21 and drive motor 23 are installed on a movable unit 41. The movable unit 41 is fixedly supported on the fixed unit 29 movably in the tense direction of the cable 15 so as to eliminate the looseness of the cable 15 occurring at the time of assembly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power sliding door driving device suitable for an automobile.

[0002]

2. Description of the Related Art Conventionally, in a one-box vehicle, a slidable door can be opened and closed without a large force by an occupant by a driving device serving as an assisting means.

[0003] The outline of the driving device is as follows. A cable fed from a winding drum to which rotation power is given by a driving motor is connected to one end of a slide door that can be opened and closed, and the winding drum is rotated forward or backward. By reversing,
By winding or unwinding the cable on the winding surface, the cable is pulled and controlled in the opening and closing direction of the slide door.

[0004]

When the slide door is opened and closed, the cable is required to be tensioned without slack from where it is wound or unwound with respect to the winding surface of the winding drum.

For this reason, in addition to the tensioner for removing the slack of the cable generated after the winding drum is assembled, it is necessary to separately provide a second tensioner for removing the slack generated during operation in the winding drum. For this reason, the structure was complicated. It is not desirable in terms of assemblability.

Therefore, the present invention provides a slide door driving device which enables slack of a cable to be removed without providing a second tensioner and enables smooth guidance of the cable to a winding drum. It is intended to provide.

[0007]

According to a first aspect of the present invention, there is provided a cable having at least one end of a sliding door which can be opened and closed,
A winding drum for feeding or winding the cable from the winding surface, a drive motor for applying rotational power to the winding drum, and a tensioner for removing slack of the cable generated when the slide door is opened and closed. In the power sliding door drive device, the tensioner is mounted on a fixed unit, and the winding drum and the drive motor are mounted on a movable unit, respectively, and the movable unit is supported on the fixed unit so as to be movable in the cable tension direction.

Accordingly, at the time of assembling, the winding drum is moved and fixedly supported by moving the mounting position in the tension direction of the cable, so that slack of the cable generated at the time of assembling can be removed.

On the other hand, during operation, the cable is tensioned by the tensioner, so that the cable can be wound or unwound with respect to the winding surface of the winding drum. In addition, the number of parts can be reduced.

According to the second aspect of the present invention, the fixed unit is provided with a cable guide for guiding the cable toward the winding surface of the winding drum, and the cable guide adjusts the mounting position of the winding drum. A first guide surface for guiding the cable toward the winding surface without difficulty, and a second guide surface for guiding the cable toward the winding surface of the winding drum when the tension of the tensioner changes. And when winding and unwinding the cable,
A third guide surface for guiding the cable without difficulty toward the winding surface is provided.

Thus, in order to remove the slack, the cable deviated from the initial mounting position at the time of adjusting the mounting position of the winding drum is guided and guided toward the winding surface by the first guide surface. When the tension of the tensioner changes, the cable that deviates from the initial position
Is guided by the guide surface toward the winding surface.
Also, at the time of winding and unwinding the cable, the cable in which the winding position or the unwinding position is sequentially deviated,
Since the guide is guided by the third guide surface, it is possible to smoothly control the pulling of the cable without being forcedly bent.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to FIGS.

In FIG. 8, reference numeral 1 denotes a sliding door of a one-box vehicle. As shown in FIG. 9, the slide door 1 is supported by front and rear brackets 7 slidable along the upper and lower guide rails 3 and the rear guide rail 5, and slides back and forth via the brackets 7, A closed state and an open state can be obtained respectively.

A driving device 9 for controlling the opening and closing of the slide door 1 is provided on the rear guide rail 5.

The driving device 9 includes front and rear guide rollers 11,
13 and a drive unit 17 that controls the pulling of the cable 15 back and forth (arrows in FIG. 10).
The slide door 1 is connected to the cable 15 via a rear bracket 7.

The driving unit 17 winds the cable 15 by a winding surface 19 as shown in FIG.
It has a take-up drum 21 to be fed out, a drive motor 23 for applying a forward or reverse rotation power to the take-up drum 21, and tensioners 25 before and after applying tension to the cable 15.

The front and rear tensioners 25 are supported by a fixing unit 29 mounted on the vehicle body by a mounting portion 27 and supported by a support roller 31 and a tension roller 3 respectively.
3 and the tension roller 33 is a support roller 3
It is rotatably supported by an arm 35 extended from 1. The front tensioner 25 tensions the cable 15 by the urging spring 37 to the right (upward in FIG. 7).
The tensioner 25 at the rear is always urged to the left (downward in FIG. 7) by the urging spring 39 to tension the cable 15.

The winding drum 21 and the drive motor 23 are mounted and supported on a movable unit 41, respectively. The movable unit 41 is fixedly supported on the fixed unit 29 so as to be movable downward in FIG. I have.

That is, the upper and lower slots 4 are provided on the fixing unit 29 side.
3 is provided, and is fixed and supported by tightening a fastening bolt 45 inserted from the movable unit 41 side into the long hole 43, and loosening the fastening bolt 45, the long hole 4
In the range of 3, the vertical movement can be adjusted.

The winding drum 21 is rotatably supported about a drum shaft 47, and the winding surface 19 of the winding drum 21 is engaged with both ends of a cable 15 guided via a cable guide 49 described later. When the winding drum 21 rotates forward or backward, one end of the cable 15 is wound on the winding surface 19 and the other end is fed out from the winding surface 19.

When the drive motor 23 is moved in the opening or closing direction by holding the outside handle 1a or the inside handle 1b of the slide door 1, a switch circuit (not shown) is activated and turned on. And the rotational power from the drive motor 23 is
To the drum shaft 47 of the winding drum 21.

As shown in FIGS. 3 to 5, the upper end of each side wall of the guide body 53, which is formed in a U-shaped cross section, is a locking portion 55.
It is locked to. Within the guide main body 53, an arc-shaped projecting portion 57 projecting from one wall surface is formed.
, A second guide surface 61 and a third guide surface 63.

As shown in FIG. 6, the first guide surface 59 directs the cable 15 from the tensioner 25 toward the winding surface 19 of the winding drum 21 below when the winding drum 21 moves downward. The guide is guided without forcibly bent, and one of the inner bottom surfaces of the guide main body 53 has a shape of an inclined surface which is inclined downward in an arc shape as shown in FIG.

When the tension of the tensioner 25 changes, as shown in FIG.
Is guided toward the take-up surface 19 of the take-up drum 21 without forcibly bending, and is formed by making one vertical surface of the overhang portion 57 a strong curved arc surface. I have.

The third guide surface 63 guides the cable 15 without forcibly bending toward the winding surface 19 when the cable 15 is wound and unwound. Is formed by making one of the vertical surfaces a gentle arc surface with a curved surface.

In FIG. 1, reference numeral 65 denotes a rotation sensor for monitoring the rotation of the winding drum 21, for example, which detects the fully closed and fully opened positions of the slide door 1 and controls the operation of the drive motor 23 to OFF. It is.

According to the driving device configured as described above,
When the cable 15 becomes loose during assembly, the fastening bolt 45 is loosened, and then the movable unit 41 is moved downward as shown in FIG. 6 to adjust the mounting position. After the adjustment of the mounting position is completed, it is fixedly set by tightening the fastening bolt 45 again. (In this embodiment, the slot 43 is moved to the lowermost position for the sake of explanation. Adjustment of the movement.)

During the adjustment of the mounting position, the cable 15 is tensioned by the winding surface 19. At the same time
As shown in FIG. 7, the front and rear tensioners 25 move the tension roller 33 from the chain line position to the solid line position against the urging springs 37 and 39, and the urging forces of the urging springs 37 and 39 are constantly applied.

On the other hand, when the winding drum 21 rotates forward or backward, the cable 15 is pulled, and the slide door 1 is driven in the opening direction or the closing direction.

In this operation, the cable 15 from the tensioner 25 to the winding surface 19 is smoothly guided and guided by the first guide surface 59 of the cable guide 49 without being forcedly bent.

The cable 15 traveling from the tensioner 25 to the cable guide 49 is guided by the second guide surface 61 without being forced to bend, and the winding surface 19
I will go to.

Further, at the time of winding and unwinding by the winding surface 19, the winding position or the unwinding position is sequentially displaced by the winding groove. The cable 15 is guided without bending, and a smooth operating state of the cable 15 is obtained.

[0033]

As described above, according to the present invention, by adjusting the mounting position of the winding drum, the slack of the cable can be removed and the number of parts can be reduced. Moreover, during operation, tension can be applied to the cable by the tensioner, so that loosening can be reliably prevented.

Further, when adjusting the mounting position of the winding drum for removing the slack or at the time of operation, the cable deviating from the initial mounting position can be smoothly moved by the respective guide surfaces of the cable guide without forcibly bending. Guidance can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a driving device according to the present invention.

FIG. 2 is a schematic right side view of FIG.

FIG. 3 is a perspective view in which a part of a cable guide is broken.

FIG. 4 is a perspective view of the cable guide as viewed from the opposite side of FIG. 3;

FIG. 5 is a sectional view taken along line AA of FIG. 3;

FIG. 6 is an operation explanatory view in which the winding drum is moved downward.

FIG. 7 is an explanatory diagram of a state in which a cable is guided and guided by a cable guide when viewed from above.

FIG. 8 is a side view of the one-box vehicle.

FIG. 9 is an explanatory schematic sectional view taken along line BB of FIG. 8;

FIG. 10 is an explanatory view of the operation when the slide door is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slide door 15 Cable 19 Winding surface 21 Winding drum 23 Drive motor 25 Tensioner 29 Fixed unit 41 Movable unit

Claims (2)

[Claims] 1. A cable to which at least one end of a slide door which can be opened and closed is connected and connected, and a winding drum for feeding or winding the cable from a winding surface,
A driving device for a power sliding door, comprising: a driving motor that applies rotational power to a winding drum; and a tensioner that removes slack in a cable generated when the sliding door is opened and closed.
A driving device for a slide door, wherein a winding drum and a drive motor are respectively attached to a movable unit, and the movable unit is fixedly supported on a fixed unit so as to be movable in a tension direction of the cable. 2. A cable guide for guiding a cable toward a winding surface of a winding drum is provided on a fixed unit,
The cable guide includes a first guide surface that guides the cable smoothly toward the winding surface when the mounting position of the winding drum is adjusted, and a cable that is directed toward the winding surface of the winding drum when the tension of the tensioner changes. And a third guide surface for guiding the cable toward the winding surface when the cable is wound and unwound. Item 2. A drive device for a slide door according to Item 1.