JP3403079B2 - Tension mechanism in power sliding device for vehicle sliding door - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power slide device, and more particularly, to a vehicle slide door that opens and closes by sliding with respect to a vehicle body of an automobile by motor power to slide in a door opening direction and a door closing direction. The present invention relates to a tension mechanism of a power slide device.

[0002]

2. Description of the Related Art In the publicly known Japanese Patent Laid-Open No. 9-88418, a wire cable whose both ends are locked by a sliding door which is opened and closed by sliding with respect to a vehicle body, and an intermediate portion of the wire cable are wound. When rotated to one side, the slide door slides in the closing direction and when rotated to the other side, a wire drum that slides the slide door in the opening direction, a motor that rotates the wire drum, one of the wire drum and the wire cable A first tension roller provided between the end of the
A second tension roller provided between the wire drum and the other end of the wire cable;
A tension spring is provided between the tension rollers, wherein the first and second tension rollers are respectively attached to tip ends of a first arm and a second arm rotatably supported by a drum shaft of the wire drum. A pivotally supported power slide device is disclosed.

[0003]

DISCLOSURE OF THE INVENTION Problems to be solved by the Invention
Although the first tension roller and the second tension roller are biased by one tension spring, the thickness of the power slide device in the axial direction of the drum shaft because the first arm and the second arm overlap with the wire drum. Is getting bigger. Since the power slide device is provided inside the quarter panel (side wall located above the rear tire) of the vehicle body, the problem of thickness is a great disadvantage in terms of mounting. Also,
The above-mentioned known device has a complicated mechanism for applying an initial tension to the wire cable, and thus requires a separate component.

[0004]

Therefore, according to the present invention, a housing 13, a wire cable 9 having both ends locked to a slide door 2 which is opened and closed by sliding with respect to the vehicle body 1, and the wire cable 9 are provided. When the intermediate part of the slide is wound and rotated to one side, the slide door 2 is slid in the closing direction, and when it is rotated to the other side, the slide door 2 is slid in the opening direction and the drum shaft 14 is attached to the housing 13.
Wire drum 8 pivotally supported by the housing 13 and the housing 13
Motor 7 fixed to the motor to rotate the wire drum 8
And a first tension roller 1 provided between the wire drum 8 and one end of the wire cable 9.
8, the wire drum 8 and the wire cable 9
And a second tension roller 19 provided between the tension roller 18 and the other end of the tension roller 18 and the second tension roller 19 are slidably attached to one tension case 17,
Between 1 9 mounting the tension spring 24 for urging in a direction to close the two tension rollers 18 and 19 to each other, the tension case 17 the wire drum 8
And the tension case are attached to the housing 13 so as not to overlap in the axial direction of the drum shaft 14.
17 can change the distance to the wire drum 8
Fix it to the housing 13 and
When the base 17 approaches the wire drum 8, the wire
-The initial tension pressure of the cable 9 becomes low
Is a tension mechanism in a power slide device for a vehicle slide door that is configured so as to reduce the load . Further, in the present invention, in the mechanism, both tension rollers 1
Reference numerals 8 and 19 are tension mechanisms in a power slide device for a vehicle slide door, which are configured to move on the same straight line by the elastic force of the tension spring 24 . Further, according to the present invention, in the mechanism, the tension shafts 20 and 21 of the tension rollers 18 and 19 are slidably engaged with the support elongated holes 22 and 23 formed in the tension case 17, so that both ends of the tension spring 24 are engaged. Is a tension mechanism in the power slide device of the vehicle slide door locked to the tension shafts 20 and 21, respectively.

[0005]

An embodiment of the present invention will be described with reference to the drawings.
1 is a vehicle body provided with a slide door 2,
Is slidably attached to the vehicle body 1 and
The door is closed and opened by sliding substantially parallel to the side surface of the. A striker 3 is fixed to the vehicle body 1, and a latch assembly 4 that holds the slide door 2 in the closed position by engaging with the striker 3 is attached to the slide door 2.

Reference numeral 5 denotes the slide door 2 driven by a motor.
Is a power slide device for sliding the door in the door closing direction and the door opening direction, and is provided inside the quarter panel (outer panel) 6 of the vehicle body 1. Power slide device 5
Includes a reversible motor 7 and a wire drum 8 that is rotated by the power of the motor 7. The wire drum 8 and the slide door 2 are connected by a wire cable 9, and when the wire drum 8 rotates in any direction by motor power, the wire cable 9 is pulled in any direction, and the slide door 2 closes or closes. Slide in the door opening direction. Reference numeral 10 denotes a fully open position stopper that holds the slide door 2 in the open position, and various configurations thereof are known, but in the present application, a configuration composed of a bent leaf spring is used. When the slide door 2 is slid toward the open position, a desired portion of the slide door 2 is stopped by the stopper 10.
When it further abuts and slides further, it is elastically deformed to get over and reach the door open position, after which it is held at the door open position by the elasticity of the stopper 10.

FIG. 2 shows the front surface of the power slide device 5. The wire drum 8 includes a base plate 11 fixed to the vehicle body 1 and a cover plate 12 fixed to the base plate 11 at a predetermined interval. In the housing 13 of the power slide device 5 including the drum shaft 1
Supported by 4. The specific means for fixing the base plate 11 to the vehicle body 1 will be described later, but the base plate 1
1 is fixed to the vehicle body 1 in a substantially vertical state, so that the drum shaft 14 is a shaft extending horizontally in the front-rear direction.

The wire drum 8 is formed in a cylindrical shape, a clutch mechanism (not shown) is housed in the space formed inside, and the wire drum 8 is inserted through the clutch mechanism.
Is connected to the speed reduction mechanism 15 of the motor 7. A wire groove 16 with which the cable 9 is engaged is formed on a cylindrical outer peripheral surface of the wire drum 8. The wire cable 9 wound around the wire drum 8 is composed of a single wire, both ends of which are locked to the slide door 2 and an intermediate portion is wound around the wire drum 8, and divided into two. There is a case where each of them is arranged between the slide door 2 and the wire drum 8. However, even in the case of two, since it can be considered that the intermediate portion is wound around the wire drum 8, this is the case in the present invention. There is no need to distinguish between.

A case 17 of a tension mechanism for the wire cable 9 is provided in the housing 13. The tension case 17 is made of synthetic resin,
As can be seen from the cross-sectional plan view of FIG. 3 and the front view of FIG. 4, it has a hollow rectangular parallelepiped shape elongated in the left-right direction, and a pair of tension rollers 18 and 19 are provided inside. The tension shafts 2 in the front-back direction of the tension rollers 18 and 19
Both ends of 0 and 21 are slidably engaged with left and right supporting long holes 22 and 23 formed in the tension case 17, and between the tension shaft 20 and the tension shaft 21,
Tension spring 24 that urges each other toward each other
(FIG. 3) is locked. In the embodiment shown in FIG. 3, springs 24 are attached to both ends of the tension shafts 20 and 21, respectively. In this case, the elastic force of the spring 24 acts on the tension shafts 20 and 21 without difficulty.

On the left and right sides of the tension case 17, front and rear screw shafts 25 and 26 are embedded and fixed, and the screw shaft 2
The rear ends of the base plates 5 and 26 are connected to the base plate 1 through vertical slots 27 and 28 formed in the base plate 11.
1, and the nuts 29 and 30 are screwed therein. The tension case 17 is formed by loosening the nuts 29, 30 so that the base plate 11 and the cover plate 12
It is slidable up and down with respect to the housing 13 composed of. Reference numerals 40 and 41 denote nuts for preventing the screw shafts 25 and 26 from slipping.

A pin 31 projecting rearward is planted in the middle of the left and right of the tension case 17, and the rear end of the pin 31 projects to the back side of the base plate 11 through a vertically elongated hole 32 formed in the base plate 11. Then, the lower portion of the vertical link 33 is pivotally supported there. An engaging hole 35 into which a screw shaft 34 fixed to the vehicle body 1 side is inserted is formed in an upper portion of the link 33, and after the screw shaft 34 is inserted, the nut 3 is inserted.
Fix at 6.

In addition to the slots 27, 28 and the elongated hole 32, a plurality of vertical mounting holes 37 are formed in the base plate 11, and a screw shaft 38 fixed to the vehicle body 1 side is mounted in the mounting hole 37. It is inserted and fixed with a nut 39.

[0013]

The present invention has the above-described structure. When the power slide device 5 is assembled to the vehicle body 1, first the slots 27, 2
8 is used to bring the tension case 17 close to the wire drum 8 as shown in FIG.
9 and 30 are fastened to fix the tension case 17 to the base plate 11, and the engaging hole 35 at the upper part of the link 33 is fixed.
After the screw shaft 34 of the vehicle body 1 is inserted through, the nut 36 is screwed and tightened, and the screw shaft 38 of the vehicle body 1 is inserted through the plurality of mounting holes 37 of the base plate 11. At this time, a nut 39 may be screwed into the screw shaft 38,
Loosen without tightening. In this state, the vertical positional relationship between the vehicle body 1 and the link 33 is fixed by the screw shaft 34, the vertical positional relationship between the link 33 and the tension case 17 is also fixed by the pin 31, and the tension case 17 is also fixed. The vertical positional relationship between the base plate 11 (housing 13) and the base plate 11 (housing 13) is also fixed by the screw shafts 25 and 26 and the nuts 29 and 30, so the overall vertical positional relationship is fixed.

When both ends of the wire cable 9 are locked to the slide door 2 in this state, the tension case 17 is closest to the wire drum 8 and the arrangement length of the wire cable 9 is shortened. Wire cable 9
Can be easily locked to the slide door 2.

When the setup of the wire cable 9 is completed, the nuts 29 and 30 fixing the tension case 17 and the base plate 11 are loosened. Then, the relatively heavy housing 13 to which the motor 7 and the wire drum 8 are attached is lowered by its own weight, and the wire drum 8 is separated from the tension case 17 as shown in FIG. The arrangement length of the wire cable becomes longer, and a predetermined initial tension pressure is applied to the wire cable 9. The distance that the wire drum 8 is separated from the tension case 17 is determined mainly by the relationship between the weight of the housing 13 side and the elastic force of the tension spring 24 provided between the tension rollers 18 and 19. Can be changed. Alternatively, the initial tension may be adjusted by applying a downward external force to the housing 13.

When the initial tension is applied to the wire cable 9 in this way, the nut 39 for fixing the housing 13 to the vehicle body 1 is tightened, and then the nuts 29, 3 for fixing the tension case 17 and the base plate 11 are fixed.
Retighten 0. This completes the assembly of the power slide device 5 to the vehicle body 1.

The initial tension applied to the wire cable 9 is absorbed by the elastic force of the tension spring 24 provided between the pair of tension rollers 18 and 19 during use.

[0018]

As described above, according to the present invention, the housing 13, the wire cable 9 whose both ends are locked by the slide door 2 which is opened and closed by sliding with respect to the vehicle body 1, and the wire cable 9 When the intermediate portion is wound and rotated to one side, the slide door 2 is slid in the closing direction, and when it is rotated to the other side, the slide door 2 is slid in the opening direction and the wire drum 8 pivotally supported on the housing 13 by the drum shaft 14. A motor 7 fixed to the housing 13 for rotating the wire drum 8; and a first tension roller 18 provided between the wire drum 8 and one end of the wire cable 9.
A structure comprising a second tension roller 19 provided between the wire drum 8 and the other end of the wire cable 9, wherein both tension rollers 18,
19 is attached slidably to one of the tension case 17, a tension spring 24 above between <br/> both tension rollers 18,1 9 for urging in a direction to close the two tension rollers 18 and 19 to each other The tension case 17 is attached to the housing 13 so as not to overlap in the axial direction of the wire drum 8 and the drum shaft 14 , and the tension case 17 is attached .
So that the distance to the wire drum 8 can be changed
The tension case 1 is fixed to the housing 13.
When the wire 7 approaches the wire drum 8,
The initial tension pressure of Bull 9 becomes low and becomes high when it is separated.
As a tension mechanism in the power slide device of the vehicle slide door configured as described above , two tension rollers 1
Since 8 and 19 are attached to one tension case 17, it is possible to easily achieve a configuration in which one tension spring 24 urges both tension rollers 18 and 19 in the direction of approaching each other, and at the same time, the tension case 17 is connected to a wire. Since the drum 8 can be prevented from overlapping with the drum 8, the thickness of the power slide device can be reduced . Also, in the tension case 17 only to be close to the wire drum 8,
Installation work of wire cable 9 slack Mukarawa Year cable 9 comfortably can, also, after the installation work, in the tension case 17 only to be separated from the wire drum 8, is applying a simple initial tension to the wire cable 9 Because it is possible, it is extremely easy to set up. Further, in the present invention, in the mechanism described above, the tension rollers 18 and 19 are formed by the elastic force of the tension spring 24.
Ri since it is obtained by a tension mechanism in both the power slide device structure as the vehicle sliding door that moves on the same straight line, the elastic force of the tension spring 24 is smoothly applied to the tension roller 18 and 19. Further, according to the present invention, in the mechanism, the tension shafts 20 and 21 of the tension rollers 18 and 19 are slidably engaged with support elongated holes 22 and 23 formed in the tension case 17,
Since both ends of the tension spring 24 are used as the tension mechanism in the power slide device of the vehicle slide door which is locked to the tension shafts 20 and 21, respectively, the tension spring 24 can be attached in a rational manner.

[Brief description of drawings]

FIG. 1 is a side view of a vehicle equipped with a sliding door.

FIG. 2 is a front view of a power slide device.

FIG. 3 is a cross-sectional view of a tension case of the power slide device.

FIG. 4 is a front view of a tension case.

FIG. 5 is a front view of a base plate.

FIG. 6 is a front view of the link.

FIG. 7 is an explanatory schematic diagram when the power slide device is attached to the vehicle body.

[Explanation of symbols]

1 ... Car body, 2 ... slide door, 3 ... striker, 4 ... latch assembly, 5 ... power slide device, 6 ... quarter panel, 7 ... motor, 8 ... wire drum, 9 ... wire cable, 10 ... fully open position stopper, 11 ... base plate, 12 ... cover plate, 13 ... housing, 14
... drum shaft, 15 ... reduction mechanism, 16 ... wire groove, 17
… Tension case, 18, 19… Tension roller,
20, 21 ... Tension shafts, 22, 23 ... Support elongated holes, 2
4 ... Tension spring, 25, 26 ... Screw shaft, 27, 28
... slots, 29, 30 ... nuts, 31 ... pins, 32 ...
Long hole, 33 ... Link, 34 ... Screw shaft, 35 ... Engagement hole, 3
6 ... Nut, 37 ... Mounting hole, 38 ... Screw shaft, 39, 4
0, 41 ... nuts.

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Claims (3)

(57) [Claims] 1. A housing 13, a wire cable 9 whose both ends are locked by a sliding door 2 which opens and closes by sliding with respect to a vehicle body 1, and an intermediate portion of the wire cable 9 is wound and rotated to one side. Then, when the sliding door 2 is slid in the closing direction and is rotated to the other side, the sliding door 2 is slid in the opening direction, and the wire drum 8 is supported by the housing 13 by the drum shaft 14.
A motor 7 fixed to the housing 13 for rotating the wire drum 8, and a first provided between the wire drum 8 and one end of the wire cable 9.
A tension roller 18 and a second tension roller 19 provided between the wire drum 8 and the other end of the wire cable 9, wherein both tension rollers 18 and 19 are one tension case. It is attached slidably to 17, between the two tension rollers 18, 1 9 mounted tension spring 24 for urging in a direction to close the two tension rollers 18 and 19 to each other, the tension case 17 the wire drum 8 and the drum shaft 14 are attached to the housing 13 so as not to overlap in the axial direction,
The tension case 17 is attached to the wire drum 8.
Fixed to the housing 13 so that the distance can be changed
The tension case 17 is connected to the wire drum 8
The initial tension pressure of the wire cable 9 approaches
A tension mechanism in a power slide device for a vehicle slide door configured so that the height becomes low and the height becomes high when separated . 2. The tension roller 18, 19 according to claim 1 , wherein the tension rollers 18 and 19 are elastically moved by the tension spring 24.
Tension mechanism in a power slide device for a vehicle sliding door together and configured to move on the same straight line Ri. 3. The tension shafts 20, 21 of the tension rollers 18, 19 according to claim 1 or 2 , wherein the support shafts 22, 2 are formed in the tension case 17.
3 is slidably engaged with the tension spring 24.
Both ends of the above are tension mechanisms in a power slide device for a vehicle slide door, which are locked to the tension shafts 20 and 21, respectively.