JPH02234839A - Slide door fitting structure for car - Google Patents

Abstract

PURPOSE:To support a slide door of a car stably in the direction fore and aft and to the inside and outside by engaging a roller through a sub-slide mechanism including a built-in rail rattle preventive mechanism installed with displaceability in the direction to the inside and outside on the car body side on a rail provided inside the slide door. CONSTITUTION:A slide door 2 provided at the side of a car is equipped at its inner side with a roller supporting part, which engages with a rail, not illustrated, furnished at the upper and lower edges of a door opening formed in the car body 1, and another rail 5 groove-formed is provided in the center of inside the door 2 as stretching horizontally. Therein, rollers 6, 7 are engaged through a sub-slide mechanism A furnished on the car body 1 side on the rail 5. This sub-slide mechanism A is supported displaceably in the direction to the inside and outside through parallel arms 10, 10 on a bracket 9 on the car body 1 side and consists of a rail rattle preventive mechanism composed of an outer rail 11, inner rail 12 inserted therein, resin slide 13 interposed between the two rails 11, 12, and coil spring 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting structure for a sliding door provided in a vehicle such as a one-box type automobile.

[Prior Art] Traditionally, one-box type automobiles, such as one-box wagons, have generally been provided with a sliding door in the middle of the side of the car body, and this door slides forward and backward along the outer side of the car body. to open and close the door opening.

In order to guide the slide of this sliding door, three rail members are required: upper, middle, and lower, of which the upper and lower two are placed at the upper and lower edges of the door opening of the vehicle body. One of the pipes is installed horizontally at the center of the outer surface of the car body (approximately the middle part in the height direction of the car body), running backwards from the door opening. [Problems to be Solved by the Invention] However, in the above-mentioned vehicle, when the door is closed, the rail member in the center is exposed to the outside of the vehicle body, so the appearance is not good.

For this purpose, an inner rail system has been proposed in which the central rail member is provided on the inner surface of the door, but in this case, as shown in FIG. 6, three supporting points a, b, When the door is closed, c is a triangle a with the upper and lower supports a and b as the base and the middle support C as the apex.
The height of bc is high, which supports the door stably, but when the door is fully opened, the fulcrums a and b are
Since the door moves to the position ', the height of the triangle a'b'c becomes lower, which causes the problem that the support of the door becomes very unstable.

In addition, with such sliding doors, when the door is closed, the door fits into the door opening and the outside surface of the door is flush with the side of the vehicle body, but when the door is opened, the door temporarily lifts up in the vehicle width direction. Since the door is a swing-slide system that slides backwards after the door is opened, the door is floating relative to the vehicle body, and in other words, the inside and outside sides that intersect with the sliding direction of the door are floating in the vehicle width direction. There is a problem in that the support of the door becomes unstable with respect to the direction, and so-called backlash occurs when the door is opened.

Due to the above-mentioned problems, an important issue for the inner rail type sliding door of a one-box wagon is the requirement to ensure stability in both the front and rear directions and the inside and outside directions of the door when the door is opened. It becomes.

The present invention has been made in view of such problems, and provides a sub-slide mechanism in conjunction with the rail member of a sliding door using the inner rail system as described above, and furthermore, provides a structure for preventing rattling of this sub-slide mechanism. According to
It is an object of the present invention to provide a sliding door mounting structure for a vehicle, which provides stable support for the door in both the front and back directions and the inside and outside directions during operation and opening of the door.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the sliding door mounting structure for a vehicle of the present invention provides a mounting structure for a sliding door for a vehicle, which is installed at the middle part in the height direction of the inner surface of the sliding door that opens and closes the door opening of the vehicle by sliding movement. In a sliding door mounting structure for a vehicle comprising a rail member along the rail member and a roller rotatably supported on the vehicle body side engaged with the rail member, the vehicle sliding door is disposed on the vehicle body side in a direction perpendicular to the sliding direction. A flexible base is provided, and the roller is attached to the base via a sub-slide mechanism that relatively moves the roller in the same direction as the sliding direction of the sliding door, and the sub-slide mechanism is attached to the base. an attached outer rail, an inner rail that is movably inserted relative to the outer rail and supports the roller, and a rail that is interposed between the outer rail and the inner rail and includes a resin slide member and a coil bearing. It is characterized by being configured with a rattling prevention mechanism.

[Function] In the vehicle sliding door mounting structure of the present invention described above, the roller supporting the rail member at the center of the sliding door is moved through the sub-sliding mechanism on the vehicle body side that slides in the same direction as the sliding direction of the door. This sub-slide mechanism shifts the central fulcrum of the sliding door backwards when the door is opened, supporting stability in the front-rear direction of the sliding door. Furthermore, this inner rail is provided with a rattling prevention mechanism consisting of a resin sliding member and a coil bearing interposed with respect to the outer rail, thereby supporting stability of the door in the inward and outward directions.

[Example] The following is a drawing showing a vehicle sliding door mounting structure as an example of the present invention. Fig. 1 is a vertical side view of the main part thereof, and Fig. 2 is a main part of the sliding door in the closed state. 3 is a top view of the essential parts of the sliding door in the open state, FIG. 4 is a partially enlarged sectional view of FIG. 1, and FIG. 5 is an inside perspective view of the sliding door having this structure. Figure 6 is a side view of the one-box wagon.
The same symbols as in the figure indicate almost similar parts. Now, in this embodiment as well, as shown in FIG.
As shown by the dotted chain line, it is provided so that it can be opened and closed so as to slide to the rear of the vehicle body.

As shown in FIG. 5, on the inner surface of the sliding door 2, rail members are provided at the upper and lower parts of the front side, respectively, and protrude inward and are provided at the upper and lower edges of the door opening of the vehicle body 1. (not shown)
, 4 are provided, and a rail member 5 in the form of a groove in the horizontal direction is provided at the center of the inner surface of the sliding door.

As shown in FIG. 1, this rail member 5 includes:
The rollers 6 and 7 are engaged via a sub-slide mechanism A provided on the vehicle body 1 side.

In this way, the sliding door 2 has the roller support section 3,
4 as the fulcrums a and b, and the rollers 6 of the sub-slide mechanism A,
It is supported by the vehicle body 1 by three fulcrums with fulcrum C being 7.

By the way, when installing the sub-slide mechanism A,
As shown in the figure, a base 8 provided on the back side of the sub-slide mechanism A allows the slide door 2 to move in the sliding direction via two rotatable parallel arms 10 and 10 from a bracket 9 fixed to the vehicle body 1 side. (arrows d, e
(see).

The sub-slide mechanism A itself is composed of a horizontal outer rail 11 having a certain length, and an inner rail 12 that slides horizontally within the outer rail 11 using the outer rail 11 as an outer shell. As shown in FIG. 4, both leg portions 12a, 12a expanding in the vertical direction face the upper and lower grooves 11a, 11a of the outer rail 11, and only the outer surface of the head 12b faces the cut groove on the side surface of the outer rail 11. It is inserted into the outer rail 11 so that 1 lb is exposed to the outside.

Moreover, the inner rail 12 is inserted into both leg portions 12a of the inner rail 12 by a resin slide member 13 having a cross-sectional outer shape that matches the cross-sectional inner shape of the outer rail 11.
, 12a and the bottom surface thereof, and is housed with the resin slide member 13 interposed therebetween, and a coil bearing 14 is placed in a recess in the center of the bottom of the resin slide member 13 so as to be in contact with the inner surface of the outer rail 11. The inner rail 12 is interposed in such a manner that the outer peripheral portion thereof is in contact with the outer rail 11, so that the inner rail 12 is always stored in a state without wobbling with respect to the outer rail 11.

Further, as shown in FIG. 1, an L-shaped angle 15 is fixed to the exposed surface of the head 12b of the inner rail 12, and a self-weight bearing roller 6 provided to protrude horizontally outward is attached to the L-shaped angle 15 of the sliding door 2. In contact with the inner upper surface of the rail member 5, and L
A guide roller 7 protruding downward from the lower end of the shaped angle 15 is in contact with the lower side surface of the rail member 5 of the sliding door 2. Therefore, the sliding door 2 and the sub-sliding mechanism A have a sliding relationship with each other and are configured to be engaged and connected by the rollers 6 and 7.

In addition, at both ends of the rail member 5 of the sliding door 2,
A rear stopper 16 that engages with the L-shaped angle 15 described above.
(see FIG. 2) and a front stopper 17 (see FIG. 3).

Next, the operation of this embodiment will be explained using FIGS. 2 and 3.

The slide door 2 shown in FIG. 2 is in the closed state, and when trying to open the slide door 2, first,
The sliding door 2 temporarily floats as if being pulled out of the vehicle through the door opening of the vehicle body 1 in the direction of the arrow f, and at the same time, the parallel arms 10, 10 partially rotate in the direction of the arrow d. Next, as the sliding door 2 is slid toward the rear of the vehicle body 1 in the direction of arrow g, the front stopper 17 in the rail member 5 hits the L-shaped angle 15, and the parallel arm 10.10 and sub-slide mechanism While rotating A in the direction of arrow d, the inner rail 12 moves to the rear end of the outer rail 11 (in the longitudinal direction of the vehicle body 1) within the sub-slide mechanism A, and reaches the state shown in FIG. 3. The opening operation of the sliding door 2 is completed. As a result, the position of the central fulcrum supporting the sliding door 2 moves to the position C' near the rear of the vehicle body 1.Furthermore, when trying to close the sliding door 2,
When the slide door 2 is moved in the direction of the arrow i from the open state shown in the figure, the rear stopper 16 in the rail member 5 hits the L-shaped angle 15 and the inner rail 1 of the sub-slide mechanism A
2 is pushed back to the front end of the outer rail 11, then the entire sub-slide mechanism A is pushed back toward the front of the vehicle body 1, and at the end, the slide door 2 is pushed into the door opening of the vehicle body 1 (as indicated by the arrow f+g in FIG. 2). (in the opposite direction), the closing operation of the sliding door 2 is completed when the state shown in FIG. 2 is reached. As a result, the position of the central fulcrum supporting the sliding door 2 is returned to the original position C.

As mentioned above, when the sliding door 2 is moved from the closed state to the open state, the sub-sliding mechanism A that supports the central part of the sliding door 2 is moved to the rear of the vehicle body so that the sliding door The height H of the triangle abc' formed by the three fulcrums that support the open state of the sliding door 2 is shifted from the conventional point C to point C', which is further rearward from the conventional point C. (6th
(see the figure) is higher than the height h of the conventional triangle abc (also see Fig. 6), so that the open state of the sliding door 2 can be stably supported in the front-rear direction.

In addition, the sub-slide mechanism A uses an inter-rail 12 that slides inside the outer shell of the outer rail 11 and is equipped with a rattling prevention mechanism to constantly move the sliding door 2 inside and outside the door, even when the sliding door 2 is moving and when it is closed and stopped. It can be stably supported in any direction. At this time, since the rail rattling prevention mechanism is composed of a resin slide member 15 and a coil bearing 14, it is possible to easily prevent rail rattling without requiring high installation accuracy compared to a system using ball bearings, etc. It can be prevented. That is, if the fit of the coil bearing 14 is set to be a little strong, a sufficient effect of preventing backlash can be expected.

Therefore, the mutual positional relationship between the sliding door 2 and the vehicle body 1 is as follows:
A predetermined distance is always maintained, which eliminates damage caused by contact between the two, and there is no discomfort during operation due to rattling.The sub-slide mechanism has a solid structure and requires high installation accuracy. It has a simple structure that allows for reliable and safe operation over a long period of time. [Effects of the Invention] As described in detail above, according to the vehicle sliding door mounting structure of the present invention, a crane base is provided on the vehicle body side and is displaced in a direction perpendicular to the sliding direction, and the base is provided with a sliding door. The roller is attached via a sub-slide mechanism that relatively moves the roller that engages with the rail member of the sliding door in the same direction as the sliding direction of the door, and the sub-slide mechanism is connected to the outer rail attached to the base. , an inner rail that is inserted so as to be movable relative to the outer rail and supports a roller, and a rail rattling prevention mechanism that is interposed between the outer rail and the inner rail and consists of a resin sliding member and a coil bearing. As a result, the central fulcrum of the sliding door can be shifted further back than before by the amount of movement of the inner rail of the sub-sliding mechanism, when the sliding door is opened.
This has the advantage that the door can be stably supported in the longitudinal direction.

In addition, the sub-slide mechanism is composed of an outer rail and an inner rail that is interposed with a rattling prevention mechanism that uses coil bearings, so the action of the sub-slide mechanism allows the sliding door to move in the outward and outward directions. In addition to stably holding the slide door and ensuring that the distance between the vehicle body and the sliding door is maintained, it also has the advantage of preventing rattling of the rail without requiring high installation accuracy.

Therefore, the sliding door is reliably held in the front and back and in and out directions both during opening and closing operations and in the open state, and the mutual spacing with the vehicle body is always maintained accurately, ensuring that there is no contact between the vehicle body and the sliding door. This has the advantage that it eliminates damage caused by the door and at the same time does not cause discomfort when operating the door, which can greatly contribute to improving the quality of the vehicle and maintaining it.

[Brief explanation of the drawing]

Figures 1 to 6 show a vehicle sliding door mounting structure as an embodiment of the present invention. Figure 1 is a vertical side view of the main part, and Figure 2 is a top view of the main part in the sliding door closed state. 3 is a top view of essential parts of the sliding door in the open state, FIG. 4 is a partially enlarged sectional view of FIG. 1, FIG. 5 is an inside perspective view of the sliding door having this structure, and FIG. 6 7 is a side view of a one-box wagon, and FIG. 7 is an inside perspective view of a conventional sliding door. 1- vehicle body, 2- sliding door, 3, 4- roller support part,
5 - rail member, 6 - dead weight socket roller, 7 - guide roller, 8 - base, 9 - bracket, 10 - parallel arm,
11-Outer rail, lla one concave groove, llb all groove, 1
2-Inner rail, 12a, both legs, 12b, head, 1
31. Resin slide member, 14. Coil bearing that constitutes rattling prevention mechanism. 15 - L-shaped angle, 16 - rear stopper, 17 - front stopper, A - sub-slide mechanism.

Claims (1)

[Claims] A vehicle comprising a slide door that opens and closes the door opening of the vehicle by sliding movement, and a rail member is provided along the middle part of the inner surface in the height direction, and a roller rotatably supported on the vehicle body is engaged with the rail member. In the sliding door mounting structure for the vehicle, a base is provided on the vehicle body side and is movable in a direction crossing the sliding direction, and a sub is provided on the base to relatively move the roller in the same direction as the sliding direction of the sliding door. The roller is attached via a slide mechanism, and the sub-slide mechanism includes an outer rail attached to the base, an inner rail that is inserted so as to be movable relative to the outer rail and supports the roller, and the outer rail. A sliding door mounting structure for a vehicle, comprising a rail rattling prevention mechanism interposed between the inner rail and the slide member made of resin and a coil bearing.