JPH11324471A - Sliding door support structure - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce opening / closing sound without impairing opening / closing feeling. SOLUTION: In a structure in which a load supporting roller 11 of a slide door 4 is rolled on a roller rolling surface 16 of a side sill 9, the roller 11 is a resin roller 12.
And the metal roller 13 so that only the resin roller 12 rolls on the roller rolling surface 16 when the slide door 4 is opened and closed, and at least one of the metal rollers near the fully open or fully closed position of the slide door 4. A metal roller rolling surface 19 is provided to allow the resin roller 12 to rise from the roller rolling surface 16 by running on the metal roller 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door support structure.

[0002]

2. Description of the Related Art As shown in FIG. 7, a sliding door of an automobile is guided by an upper body, a center, and lower rails 1, 2, and 3 of a vehicle body to open and close. FIG. 6 shows a guide structure of the lower rail 3. A roller 6 for supporting the load of the slide door 4 and a guide roller 7 for restricting the movement of the slide door 4 in the vehicle width direction are provided on a bracket 5 fixed to the rear surface of the slide door 4. The guide roller 7 rolls in the guide rail 8, while the load supporting roller 6 rolls on the roller rolling surface 10 of the side sill 9.

[0003]

By the way, the roller 6
Since the load of the slide door 4 is applied to the, it is necessary to use a metal one. For this reason, a loud metal contact noise is generated when the sliding door 4 is opened and closed, and the quality is impaired. If a roller made of resin is used for the roller 6, the opening / closing sound of the sliding door 4 is reduced, but the sliding door of the automobile has a time in which the door is in the closed position or the open position more than the time in which the door is opened and closed. Because it is overwhelmingly long,
Since only a certain portion of the roller 6 is deformed by receiving the load of the slide door 4 and does not roll smoothly, the opening / closing feeling of the slide door 4 deteriorates.

SUMMARY OF THE INVENTION [0004] In view of such circumstances, an object of the present invention is to provide a support structure for a sliding door that can reduce opening and closing sounds without impairing the opening and closing feeling.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a structure in which a load supporting roller of a sliding door is rolled on a roller rolling surface of a side sill. A metal roller is used, and only the resin roller is rolled on the roller rolling surface when the slide door is opened and closed, and the metal roller runs over at least one of the positions near the fully open or fully closed position of the slide door. A metal roller rolling surface for raising the roller from the roller rolling surface is provided.

[0006] The metal roller may be arranged outside the resin roller.

[0007] The outer diameter of the metal roller may be larger than the outer diameter of the resin roller.

[0008] The resin roller and the metal roller may be integrally formed.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIGS. 1 and 2 show a guide structure of the lower rail 3 of FIG. In FIG. 1, reference numeral 10 denotes a bracket fixed to the slide door 4, and a load supporting roller 11 of the slide door 4 is installed on the bracket 10.
The roller 11 includes an inner resin roller 12 and an outer metal roller 13. Also, the bracket 10
Is provided with a guide roller 14, which is engaged with a guide rail 15 fixed to the side sill 9.

FIG. 3 shows a rolling surface of the side sill 9 on which the load supporting roller 11 rolls. In the figure, 1
Reference numeral 6 denotes a resin roller rolling surface, which is disposed on the upper surface of a step 17 formed on the side sill 9. Roller surface of resin roller 16
Extends substantially horizontally along the front-rear direction of the vehicle body, and its front end is curved inward corresponding to the movement locus of the slide door 4. Further, a wedge-shaped bulging portion 18 is formed on the side sill 9 adjacent to the curved portion, and the upper surface thereof is a metal roller rolling surface 19. The rolling surface 19 is inclined so as to gradually fall outward.
The tip is one step lower than the resin roller rolling surface 16.

Since the present embodiment is configured as described above,
When the slide door 4 is opened and closed, the resin roller 12 rolls on the resin roller rolling surface 16 (see FIG. 2). However, when the slide door 4 is closed and reaches near the fully closed position, the metal roller 12 rolls. The resin roller 13 rides on the surface 19 and rises from the resin roller rolling surface 16 (see FIG. 1). That is, the resin roller 1
Since the sliding door 4 is opened and closed by the rolling of 2, the metal contact noise as in the related art does not occur, and the opening and closing noise of the sliding door 4 is reduced. On the other hand, sliding door 4
Is fully closed, the metal roller 13 receives the load of the slide door 4, that is, the time for the resin roller 12 to receive the load of the slide door 4 is relatively short, so that the resin roller 12 is deformed and the slide door 4 is deformed. The opening / closing feeling does not deteriorate.

Further, the metal roller 13 is connected to the resin roller 1.
2, the moment acting on the bracket 10 when the sliding door 4 starts to be opened is small, which is advantageous in strength.

If the sliding door 4 is fully opened for a long time, and the resin roller 12 is likely to be deformed by the load of the sliding door 4, the rear end of the resin roller rolling surface 16 may be deformed. Roller contact surface 19 in the part
May be arranged adjacent to each other, and the metal roller 13 rides on the rolling surface 19 near the fully open position of the slide door 4.

Incidentally, as shown in FIG.
May be larger than that of the resin roller 21. In this case, it is necessary to increase the step between the tip of the metal roller rolling surface 19 and the resin roller rolling surface 16 in accordance with the difference in outer diameter between the rollers 20 and 21.

In this way, even if the slide door 4 moves up and down violently during opening and closing, there is less possibility that the resin roller 21 will receive an impact.

Alternatively, as shown in FIG. 5, a hub 22a may be provided on the metal roller 22, and a resin sleeve 23 may be mounted on the hub 22a to form the resin roller 24.

When the rollers 22 and 24 are integrally formed as described above, the roller width is reduced, and the degree of freedom in design is increased.

[0019]

According to the present invention, since the sliding door is opened and closed by the rolling of the resin roller, the opening and closing noise of the sliding door is reduced. However, when the sliding door is fully closed or fully opened, the metal roller slides. Since the load of the door is received, the opening and closing feeling of the sliding door does not deteriorate due to the deformation of the resin roller.

According to the second aspect of the present invention, when the slide door starts to be opened, the moment acting on the roller mounting bracket can be small, which is advantageous in strength.

According to the third aspect of the present invention, even if the slide door moves up and down violently at the time of opening and closing, there is less possibility that the resin roller receives an impact.

According to the structure of the fourth aspect, the roller width is reduced, and the degree of freedom in design is increased.

[Brief description of the drawings]

FIG. 1 is a view showing a structure of the present invention, and is a cross-sectional view taken along line BB of FIG. 3;

FIG. 2 is a view showing the structure of the present invention, and is a cross-sectional view taken along line CC of FIG.

FIG. 3 is an enlarged view showing the inside of a dotted frame A in FIG. 7;

FIG. 4 is a diagram showing a modification of the load supporting roller.

FIG. 5 is a view showing a modification of the load supporting roller.

FIG. 6 is a sectional view showing a conventional structure.

FIG. 7 is a view showing an automobile provided with a slide door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 ... Slide door 9 ... Side sill 11 ... Load support roller 12 ... Resin roller 13 ... Metal roller 16 ... Resin roller rolling surface 19 ... Metal roller rolling surface

Claims (4)

[Claims] In a structure in which a load supporting roller of a slide door is rolled on a roller rolling surface of a side sill, the roller is composed of a resin roller and a metal roller, and only the resin roller is a slide door. Roller rolling on the roller rolling surface at the time of opening and closing, and at the same time at least in the vicinity of the fully open or fully closed position of the slide door, the metal roller rides on and the resin roller rises from the roller rolling surface. A sliding door support structure characterized by having a surface. 2. The support structure for a slide door according to claim 1, wherein the metal roller is disposed outside a resin roller. 3. The sliding door support structure according to claim 1, wherein the outer diameter of the metal roller is larger than the outer diameter of the resin roller. 4. The sliding door support structure according to claim 1, wherein the resin roller and the metal roller are integrally formed.