JPS6123463Y2 - - Google Patents

Description

[Detailed description of the invention] In order to open and close an opening in the side of the vehicle body using a sliding door, a roller bracket equipped with two rollers guided by a guide rail is rotated by the sliding door. The present invention relates to an improvement of a guide device for a sliding door that is pivotably fixed.

Conventionally, a guide device for a sliding door has been constructed by fixing a guide rail upper 3 to a roof rail 5 extending in the longitudinal direction on the side of the vehicle roof, and opening an opening on the side of the vehicle body, as shown in FIG. The base end of a roller bracket 6, which forms an upper edge and is provided with two upper rollers 1, 1 guided by a guide rail upper 3, is rotatably fixed to the slide door 2. (For example, Fig. 2 of JP-A No. 50-54017) However, in the conventional structure, when the sliding door 2 is fully opened, the upper roller 1
is regulated at the rear end of the guide rail upper 3, and the backward movement of the sliding door 2 is reduced by dimension D than when one upper roller is provided, as shown by the broken line in Fig. 4, and the opening of the sliding door is reduced. There is a problem in that the aperture width is reduced.

To solve the above problem, the guide rail upper 3 may be extended rearward, but since there is a pillar portion 4 at the rear of the guide rail upper 3, it is structurally difficult to extend the guide rail upper 3 rearward.

Therefore, the present invention was devised in view of the above-mentioned problems of the conventional art. It is an object of the present invention to provide a guide device that can prevent or increase the reduction in the amount of water.

The present invention will be explained below based on the embodiments shown in FIGS. 1 to 3.

A roof rail 14 extends in the front-rear direction on the side of the vehicle roof, and a guide rail upper 11, which is one of the guide rails for guiding the sliding door 13, is fixed to the roof rail 14. The guide rail upper 11 extends in the front-rear direction along the upper edge 15a of an opening 15 opened at the side of the vehicle body, and its front end 11a side and rear end 11b are curved toward the interior of the vehicle.

The base end 12a of the roller bracket 12 is connected to the support shaft 16 at the upper edge of the front end 13a side of the sliding door 13.
The shaft is rotatably fixed via the shaft. A rear roller 17 is rotatably fixed to the rear side of the tip 12b of the roller bracket 12, and a front roller 18 is rotatably fixed to the front side of the tip 12b. The rotation center B of the front roller 18 is
When a perpendicular line m is drawn from the center C of the support shaft 16 to a line l connecting the rotation center B and the rotation center A of the rear roller 17, it is arranged to be on the rear side of the perpendicular line m. Here, the case where the rotation center B is arranged on the perpendicular line m is also included.

Therefore, the center C of the support shaft 16 and the front roller 1
8 and the front roller 18
The angle formed by the line l connecting the rotation center B of the rear roller 17 and the rotation center A of the rear roller 17 is an obtuse angle at the angle ∠ABC. Here the angle ∠ ABC
Including cases where is a right angle.

The front roller 18 and the rear roller 17 are fitted in a guide rail 11 so as to be able to roll freely, and are guided by the guide rail 11 to move the slide door 13 back and forth to open and close the opening 15. ing. Then, the sliding door 13 is opened at the opening 1.
5 is closed, the roller bracket 12 is located on the front end 11a side of the guide rail upper 11, and in a state Q where the slide door 13 opens the opening 15, the roller bracket 12 is located on the rear end 11b of the guide rail upper 11. Located on the side. FIG. 3 illustrates these two states.

In FIG. 3, reference numeral 19 indicates a pillar portion of the vehicle body, and symbol Z indicates the opening width of the sliding door 13 when it is fully opened.

Next, the operation of the above embodiment will be explained.

When the sliding door 13 is opened and closed, the center C of the support shaft 16 of the roller bracket 12 is moved to the center C by the rear roller 17 and front roller 18, which are fixed to the roller bracket 12, being guided by the guide rail upper 11. A locus as shown by the two-dot chain line X in FIG. 3 is formed. That is, when the rear roller 17 and the front roller 18 are at the intermediate position of the guide rail upper 11, the center C of the support shaft 16 moves in the front-rear direction parallel to the intermediate portion of the guide rail upper 11, and the center C moves in the left-right direction. No movement occurs.

In the state P in which the opening 15 is closed by the sliding door 13, the front roller 18 is located at the front end 11a of the guide rail upper 11 that is curved toward the interior of the vehicle. It is also located inside the passenger compartment. For this reason,
The center C of the support shaft 16 is the rotation center B of the front roller 18
The guide rail upper 11 rotates clockwise according to the curve thereof, and moves forward relative to the rotation center B of the front roller 18.

Therefore, the length of the front end 11a of the guide rail upper 11 can be shortened by the amount of the forward movement, and the amount of protrusion of the guide rail upper 11 inward into the vehicle interior can be reduced by this shortened length. It can be reduced. Therefore, the amount Y of the roof rail 14 protruding forward into the vehicle interior can be reduced in this portion.

In addition, in the state Q in which the sliding door 13 is operated to open the opening 19, the rear roller 17 moves toward the rear end 1 of the guide rail upper 11, which is curved toward the passenger compartment.
1b, the rear roller 17 is positioned closer to the vehicle interior than the front roller 18. Therefore, the center C of the support shaft 16 rotates counterclockwise relative to the rotation center B of the front roller 18 by the curve of the guide rail upper 11, and moves backward relative to the rotation center B of the front roller 18. do.

Therefore, the position of the rear end 11b of the guide rail upper 11 is restricted by the front edge of the pillar portion 19, and the position of the rotation center A of the rear roller 17 is restricted by the position of the rear end 11b of the guide rail upper 11. However, the rotation center A of the rear roller 17 and the support shaft 16
The front-to-back dimension E of the center C becomes smaller by the amount of rearward movement relative to the rotation center B of the front roller 18, and compared to the conventional dimension D described above, E<D. Therefore, the amount by which the front end 13a of the sliding door 13 protrudes forward from the pillar portion 19 decreases, and conversely, the opening width Z of the opening 15 decreases by the amount of backward movement (DE).
It will be expanded.

Furthermore, by curving the rear end side of the guide rail upper 11 toward the interior of the vehicle, the rear end of the guide rail upper 11 protrudes toward the interior of the vehicle due to this curvature, and the roof rail 14 also extends toward the interior of the vehicle at this portion. Since the roof rail 14 protrudes, the amount of protrusion is set to be equal to or smaller than the amount Y of protrusion into the vehicle interior of the front of the roof rail 14. As a result, the amount of inward protrusion into the vehicle interior becomes smaller than before, and the effective dimension inside the vehicle interior also increases.

As described above, according to the present invention, the front end side and the rear end side of the guide rail are curved toward the interior of the vehicle, and the rotation center B of the front roller and the rotation center A of the rear roller
Since the angle formed by the center C of the roller bracket and the center C of the roller bracket is an obtuse angle, the opening width when the sliding door is opened can be expanded, and the amount of protrusion of the roof rail into the passenger compartment can be reduced. It has the following effects:

[Brief explanation of the drawing]

Fig. 1 is a side view of an automobile equipped with a guide device according to the present invention, Fig. 2 is an enlarged longitudinal cross-sectional view of the same essential parts;
FIG. 3 is an enlarged plan view taken in the direction of arrow F in FIG. 1, and FIG. 4 is a partially enlarged plan view showing a conventional guide device. 11 is the guide rail upper, 12 is the roller bracket, 13 is the sliding door, 14 is the roof rail, 15 is the opening, 16 is the spindle, 17 is the rear roller, 18 is the front roller, and A is the rotation of the rear roller 17. B is the center of rotation of the front roller 18, and C is the center of the support shaft 16.

Claims (1)

[Claim for Utility Model Registration] A guide rail is provided along the front-rear direction on the upper edge of an opening in the side of the vehicle body, and the base end of a roller bracket is attached to the front end of the sliding door via a support shaft. A front roller and a rear roller that are rotatably fixed to the shaft and guided within the guide rail are fixed to the front and rear sides of the tip of the roller bracket, and the front roller and the rear roller are guided within the guide rail. In a sliding door opening/closing device that is fitted in a rolling manner and is configured to move the sliding door back and forth to open and close the opening, the front end side and the rear end side of the guide rail are curved toward the interior of the vehicle. and arranged so that the rotation center B of the front roller is located behind a perpendicular line m extending from the center C of the support shaft to a line l connecting the rotation center B of the front roller and the rotation center A of the rear roller. and an angle ∠ formed by a line n connecting the center C of the support shaft and the rotation center B of the front roller and a line l connecting the rotation center B of the front roller and the rotation center A of the rear roller.
A guide device for a sliding door, characterized in that ABC is formed at an obtuse angle.