JPS6018567B2 - Automobile sliding door rail structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rail structure for a sliding door of an automobile.

Generally, in the rail structure of an automobile sliding door, a recess is formed in the body panel to attach the rail. In order to shorten the length of the support member that supports the transferable support roller from the sliding door, it is formed as shallowly as possible.

2. Description of the Related Art As a conventional slide door rail structure of this type of automobile, the one shown in FIGS. 1 and 2, for example, is known. In the figure, 1 is an automobile, and this automobile 1 has a rail structure 3 for a sliding door 2 so that the sliding door 2 can be smoothly closed. This structure 3 has a horizontally extending recess 5 formed in the body panel 4.
By positioning the rail 6 of the sliding door 2 inside, inserting the bolt 8 into the mounting hole 7 and tightening the nut 9.
6 is fixed to the body panel 4. A guide roller 10 is rotatably engaged with the rail 6, and the guide roller 10 is rotatably supported by a shaft 11. The shaft 11 is fixed to a support member 12 attached to the inside of the sliding door 2, and a support roller 13 that rotatably engages with the lever 6 is supported on the support member 12. In such a subordinate rail structure 3, since the outer part of the rail 6 protrudes further outward than the body panel 4, the rail 6
When the rail 6 comes into contact with an obstacle such as a telephone pole, wall, fence, etc., the outwardly projecting portion of the rail 6 is damaged or deformed, resulting in a problem in that the sliding door 2 does not move smoothly. In addition, the area around the mounting hole 7 of the body panel 4 may rust due to rainwater or water from car washing, and the rail 6 may not be able to withstand the weight of the sliding door 2 and fall off, or water may leak onto the top surface of the rail 6 or the body panel 4.
There was a problem in that it remained at the bottom of the dent 5 and interfered with waxing after washing the car. This invention was made by focusing on the problem of such a substructure, and includes a horizontally extending recess formed in the body panel of an automobile, and an outer part of the recess that protrudes outward from the body panel. A protector molding, the outer surface of which protrudes outward from the outer surface of the rail, is interposed between the slide door rail and the rail of the sliding door which is fitted into the recess and fixed to the body panel.

The present invention will be explained below based on the drawings.

FIG. 3 is a diagram showing a first embodiment of the present invention. First, to explain the structure, a rising portion 14 is formed on the outer side of the rail 6 and protrudes from the upper surface thereof. 15 is a protector molding whose outer surface 15a protrudes outward from the outer surface 6a of the rail 6, and a groove 16 that engages with the rising portion 14 is formed in the lower part of the protector molding.

When installing this protector molding 15, first insert the bolt 8 into the mounting hole 7 with the rising portion 14 engaged with the screw 16 of the protector molding 15, and then insert the bolt 8 into the mounting hole 7.
Tighten. In this way, the protector molding 15 is interposed between the recess 5 above the bolt 8 and the seal 6 to close the space between them, and the two concave surfaces 17, 1
8 engages with the recess 5 of the body panel 4 and the upper surface of the seal 6. In this embodiment, in order to prevent the protector molding 15 from easily coming off from the body panel 4 and the seal 6, the rising portion 14 is engaged with the groove 16, and the length L,
is made smaller than the length -.

Here, the length L refers to the shortest length from the apex of the rising portion 14 to the outer wall of the body panel 4, and the length L2 refers to the shortest length from the apex of the rising portion 14 to the outer wall of the body panel 4. It refers to the maximum cross-sectional length of the protector molding 15 on a line parallel to the line when Protector mall 15
is made of plastic, rubber, etc. FIG. 4 is a diagram showing a second embodiment.

The rail 6 in this embodiment has, on its outer side, a bent part 19 projecting from the upper surface thereof, and a woven part 20 bent downward and projecting from the lower surface of the rail 6. 21,2
2 is a protector molding whose inner surface is in contact with the bottom surface of the recess 5; the outer surface 21a of the protector molding 21 protrudes outward from the outer surface 6a of the seal 6; A groove 23 is formed in the upper part of the protector molding 22, and a groove 24 is formed in the upper part of the protector molding 22 to engage the two ends.

When attaching these protector moldings 21 and 22, bend the bent portion 19 into the groove 2 of the protector molding 21.
3, and with the end portion 20 engaged with the groove 24 of the protector molding 22, insert the bolt 8 into the mounting hole 7 and tighten the nut 9M.In this way, the protector moldings 21 and 22 are respectively The two bare surfaces 25 and 26 of the protector molding 21 and the two sliding surfaces of the protector molding 22 are interposed between the recess 5 above and below the bolt 8 and the seal 6 to close the space between them. 27 and 28 engage with the recess 5 of the body panel 4 and the upper and lower surfaces of the rule 6. In this embodiment, in order to prevent the protector molding 21 from easily coming off from the body panel 4 and the seal 6, the bent portion 19 is engaged with the groove 23 of the protector molding 21, and the lengths L and ′ are made smaller than the length Z′. It has also been made smaller.

Here, the length L' refers to the shortest length from the apex of the bent part 19 to the outer wall of the body panel 4, and the length L' refers to the shortest length from the apex of the bent part 19 to the outer wall of the body panel 4. It refers to the maximum cross-sectional length of the protector molding 21 on a line parallel to the line measured. Further, since the end portion 20 of the rail 6 is engaged with the groove 24 of the protector molding 22, the protector molding 22 does not easily come off from the body panel 4 and the seal 6. protector mall 21,
22 is made of a material such as plastic or rubber as in the first embodiment. FIG. 5 is a diagram showing a third embodiment.

The rail 6 in this embodiment has, on its outer side, a bent portion 29 projecting from the upper surface, and an end portion 30 bent and projecting downward from the lower surface of the rail 6. 31 is a protector molding whose outer end surface 31a protrudes outward from the outer surface 6a of the rail 6, and has a small-diameter through hole 32 in the center, a groove 33 in the upper part that engages with the bent part 29,
A groove 34 that engages the end portion 30 is formed in the lower portion.

When installing this protector molding 31, the bent portion 29 is engaged with the groove 33 of the protector molding 31, and the bolt 8 is inserted through the through hole 32 of the protector molding 31 with the end portion 30 engaged with the groove 34. insert it into the mounting hole 7 and tighten the nut 9. In this way, the protector molding 31 is interposed between the recess 5 of the body panel 4 and the seal 6 without leaving any space. Therefore, the gap between the recess 5 and the seal 6, especially the bolt 8
The periphery of the protector molding 31 is completely closed off by the protector molding 31, and the center portion of the protector molding 31 is interposed between the bottom surface of the recess 5 and the bottom surface of the seal 6. In this embodiment, the protector molding 31 is held between the recess 5 of the body panel 4 and the seal 6, which are tightened by bolts 8 and nuts 9, so that the protector molding 31 can be removed from the body panel 4 and the seal 6. Never.

The protector molding 31 is made of a material such as plastic or rubber as in the first and second embodiments. As explained above, according to the present invention, the structure is such that a protector molding whose outer surface protrudes outward from the outer surface of the rail is interposed between the recess and the seal, so that the side surface of the automobile is Even if it comes into contact with an obstacle such as a utility pole, wall, or fence, the rail will not be damaged because it will come into contact with the outside surface of the protector molding, and the external force from contact will be transferred to the body panel through the protector molding. Since the signal is transmitted, the rail will not be deformed.

Furthermore, since the area between the dent and the seal where the protector molding is interposed is closed by the protector molding, it is possible to prevent rainwater or water from entering during car washing, and as a result, the dent and the seal are blocked. This prevents the occurrence of rust on the fixed parts, and also prevents the rail from falling off due to this rust. In addition to the above-mentioned common effects, each embodiment has the following effects.

In the second embodiment, another protector molding is further interposed between the rail below the bolt and the recess, which not only prevents water from entering from below, but also reduces the weight of the door to the body panel. The deformation of the rail can be reduced.

Moreover, since the bottom surface of the protector molding is brought into contact with the bottom surface of the recess, the resistance against external force is further increased. In the third embodiment, the central part of the integral protector molding surrounds the base of the bolt, and the central part is interposed between the bottom of the recess and the bottom of the seal, thereby preventing rust from forming near the bolt mounting hole. Furthermore, it is possible to prevent noise and attenuate the noise generated when the guide rollers and support rollers move on the rails.

[Brief explanation of the drawing]

FIG. 1 is a side view of an automobile having a sliding door, FIG. 2 is a sectional view taken along the line A-A in FIG. 1 showing a conventional rail structure, and FIG. 3 is a first view of a rail structure according to the present invention. FIG. 4 is a cross-sectional view of blindness similar to FIG. 2 showing the second embodiment, FIG. 5 is a cross-sectional view of blindness similar to FIG. 2 showing the second embodiment, and FIG. A similar sectional view taken in the direction of arrows. 1...car, 2...sliding door,
4. ．．・．． ．． -Body panel, 5...dent, 6...rail, 15, 21, 22, 31...protector molding. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Scope of Claims] 1. A recess extending in the horizontal direction formed in a body panel of an automobile, and an outer portion of the recess that is loosely fitted into the recess and fixed to the body panel so as to protrude outward from the body panel. A rail structure for a sliding door of an automobile, characterized in that a protector molding, the outer surface of which protrudes outward from the outer surface of the rail, is interposed between the rail and the rail of the sliding door. 2. The automobile according to claim 1, wherein the protector molding has a substantially U-shaped cross section and is interposed between the body panel and the upper and lower surfaces of the slide door rail. sliding door rail structure.