JP2673662B2 - Sliding door device for van type vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide door device that opens and closes an opening provided in a side wall of a luggage compartment of a van type vehicle by a slide door that slides back and forth.

[0002]

2. Description of the Related Art A conventional general slide door device of this type is disclosed in, for example, Japanese Utility Model Publication No. 58-35538 and 59.
As described in Japanese Patent Publication No. 13144, etc., rails are provided at three positions above, in the middle, and below the side wall, that is, an upper rail is above the opening, a lower rail is below, and an intermediate rail is in the middle behind the opening. Is provided to support the sliding door at three points, and the vertical load (weight) is given to the lower rail and the intermediate rail. In this case, install a foldable link mechanism slidably connected to the intermediate rail on the slide door side, slide the slide door to the front of the opening, and then operate the handle with a cam of the link mechanism to slide. The door was supposed to be in close contact with the opening.

[0003]

However, according to this, an intermediate rail is required in addition to the upper and lower rails.
There are many parts and it becomes expensive, and in order to close the sliding door close to the opening, it is necessary to slide the sliding door to the front of the opening and then operate the handle with cam, that is, sliding the sliding door. In addition to the operation, it requires a closed operation with a handle with a cam, so the operability is poor, and the vertical load of the slide door is also given to the intermediate rail via the link mechanism,
There was a problem such as a large resistance to slide operation.

In view of the above-mentioned conventional problems, an object of the present invention is to simplify the structure by omitting the intermediate rail and parts related thereto, and automatically sliding the sliding door to automatically open the opening. That is, the sliding door can be opened and closed with one touch to improve the opening and closing operability, and the sliding door can be opened and closed easily.

[0005]

In the slide door apparatus according to the present invention, a pair of front and rear upper brackets 8 and 9 are provided at an upper end portion of the slide door 6 and at least one lower bracket 10 is provided at a lower end portion thereof inwardly of the luggage compartment 1. To project.
The upper cam floors 13 and 14 and the ball casters 11 and 12 are provided at the tips of the upper brackets 8 and 9, respectively, and the lower cam floor 15 is provided at the tips of the lower brackets 10. The upper and lower rails 3 on the top of the luggage compartment 1
4 are provided in a straight line. The front and rear upper rails 3 and 4 are provided with cam guide portions 20 and 25 for guiding the front and rear upper cam floors 13 and 14 respectively without receiving the vertical load of the slide door 6, and the ball casters 11. And the ball receiving surfaces 17 and 22 for receiving the vertical load of the slide door 6 through the upper brackets 8 and 9 respectively. Further, the lower cam floor 15 does not receive the vertical load of the slide door 6 at the lower part of the luggage compartment 1.
There is provided a lower rail 5 for guiding.

Cam guide portions 2 of front and rear upper rails 3 and 4
Most of the 0.25 and lower rails 5 are linear and only the front end is bent inward of the luggage compartment 1, and the angle of the bent portion is the cam guide portion 20 of the front and rear upper rails 3 and 4.
-For 25 pieces, the cam guide portion 25 of the upper rail 4 on the rear side of the cam guide portion 20 of the upper rail 3 on the front side
To be larger.

[0007]

According to the slide door device of the present invention, the vertical load of the slide door is borne by the front and rear upper rails via the front and rear ball casters, and the front and rear upper and lower cam floors receive the vertical load of the slide door. It just guides the slides before and after that. Therefore, since the ball caster rolls in a state of point contact with the ball receiving surface of the upper rail, even if a vertical load is applied to the slide door, the front and rear slides of the slide door and the displacement in the inner and outer directions with respect to the opening will eventually occur. Can be done lightly.

Since front end portions of the cam guide portions of the front and rear upper rails and the front portions of the lower rails are bent inward,
When the sliding door is finally closed, the sliding door is pulled inside the opening and automatically becomes a closed state. In this case, the angle of the bent part is larger in the cam guide parts of the front and rear upper rails than in the cam guide parts of the front upper rail, so that the cam guide part of the rear upper rail is larger than that of the slide door and opening. The sliding door can be reliably sealed and smoothly opened and closed without interfering with the rear edge of the part.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 and 2, the sliding door device of this example includes a side wall 2 of a luggage compartment (packing box) 1 of a van type vehicle.
The upper and lower upper rails 3 and 4 are horizontally arranged in a straight line at the upper end of the rail, and the lower rail 5 is horizontally provided on the lower side of the side wall 2, and the slide door 6 is moved forward and backward along these rails 3, 4, and 5. As shown in FIG. 3 and FIG. 4, the opening 7 provided in the side wall 2 can be opened and closed by sliding it to.

A pair of front and rear upper brackets 8 and 9 are provided at front and rear corners of the upper end of the outer surface of the slide door 6 so as to support the slide door 6 on the front and rear upper rails 3 and 4 so as to be slidable back and forth. There is. Further, one lower bracket 10 is fixed to a front corner of the lower end of the outer surface of the slide door 6 so that the lower rail 5 serves as a guide.

As shown in FIGS. 3 to 5, the front and rear upper brackets 8 and 9 are bent substantially at right angles after the upper portion bulges outward from the portion fixed to the outer surface of the slide door 6, and a part thereof is formed. The slide door 6 horizontally projects inward (inward with respect to the luggage compartment 1) so as to extend slightly above the upper edge of the slide door 6. The front and rear ball casters 11 and 12 are mounted on the lower side of the tip of the horizontally protruding portion, and the front and rear upper cam floors 13 and 1 are mounted on the upper side.
I wear 4 respectively.

On the other hand, the lower bracket 10 bends at a substantially right angle after the lower portion bulges outward from the portion fixed to the outer surface of the slide door 6, and a part of the lower bracket 10 slightly extends below the lower edge of the slide door 6. So that it projects horizontally inward. Then, the lower cam floor 15 is mounted on the upper side of the tip of the horizontally protruding portion.

The front and rear upper rails 3 and 4 receive the vertical load (weight) of the slide door 6 via the ball casters 11 and 12 and simultaneously guide the upper cam floors 13 and 14, respectively, so that both are vertically doubled. Although the front upper rail 3 has its entire length provided along the upper edge of the opening 7, the rear upper rail 4 is disengaged from the opening 7. It is provided behind it. Due to such a difference in installation position, the specific structures of the front and rear upper rails 3 and 4 are slightly different as follows.

That is, the front upper rail 3 is shown in FIG.
As shown in FIGS. 4 and 5, the laterally elongated concave portion 16 of the side wall 2 which is recessed along the upper edge of the opening 7, and the long ball receiver having an inverted L-shaped cross section fixed to the outer side of the lower edge of the laterally elongated concave portion 16. The rail plate 17, a long linear rail member 18 having an inverted U-shaped cross section that is fixed to the outer side of the upper edge of the horizontal recess 16, and the front end of the linear rail member 18 are connected and fixed to the upper surface of the horizontal recess 16. Similarly, it is composed of a short curved rail material 19 having an inverted U-shaped cross section. The upper surface of the ball receiving rail plate 17 and the bottom surface of the laterally elongated recessed portion 16 are flush with each other to form a ball receiving surface which is a rolling surface of the front side ball caster 11, and the linear rail member 18 and the curved rail member 19 are A front cam guide portion 20 for guiding the front upper cam floor 13 is formed. Most of the length of the cam guide portion 20 is linear along the upper edge of the opening 7 by the linear rail member 18, but the curved rail member 19 is inward of the front end portion of the laterally elongated recessed portion 16. Because it goes in, only the front end is bent inward.

As shown in FIGS. 3 and 4, the rear upper rail 4 has a long linear rail member 21 having an L-shaped section and an inverted L-shaped section, and a long ball receiver having an L-shaped section. By combining the rail plate 22 with the upper and lower sides, the side wall 2 is fixed to the laterally uneven outer surface through the spacer plate 23, and the straight rail member 21 is connected to the short curved rail member 24 having an inverted U-shaped cross section. This is fixed to the upper surface of the horizontally long concave portion 16. The top surface of the ball receiving rail plate 22 and the bottom surface of the lateral recess 16 are flush with each other to form a ball receiving surface which is a rolling surface of the ball caster 12 on the rear side, and the linear rail member 21 and the curved rail member 24 are connected to each other. Forms a rear cam guide portion 25 that guides the rear upper cam floor 14. Most of the length of the cam guide portion 25 is linear along the outer surface of the side wall 2 by the linear rail member 21, but the curved rail member 24 is located inside the rear end portion of the lateral recess 16. Since it is inside, only the front end is bent inward. The bending angle is larger than the bending angle of the front end portion of the front cam guide portion 20 as shown by the chain line in FIG.

In order to guide the lower cam floor 15, the lower rail 5 is connected to a front end of a long linear rail member 25a having an inverted U-shaped cross section with a short curved rail member 26b having an inverted U-shaped cross section and having the same shape. It is fixed to the lower side, and most of its length is a straight line along the lower edge of the opening 7 by the straight rail member 26a, but the curved rail member 26b is bent inward. Only the front end portion is bent inward to the same extent as the front end portion of the upper front cam guide portion 20.

In order to lock the sliding door 6 with respect to the opening 7, a known door lock fitting 27 having a handle 27a on the outer surface (on the right side toward the outer surface of the sliding door 6 in the illustrated example). Is embedded and installed. In FIG. 5, 28 and 29 are rubber sealing materials for sealing the peripheral edge of the slide door 6 and the peripheral edge of the opening 7, 30 is a sill material for the luggage compartment 1, 31 is a floor plate, and 32 is joist.

In the above-mentioned structure, as shown in FIG. 3, the slide door 6 is moved forward by holding the handle 27a of the door lock fitting 27 from the state where the slide door 6 is positioned rearward and the opening 7 is opened. When it is moved, the front and rear upper cam floors 13 and 14 will move to the front and rear straight rail members 1
While being guided to 8 ・ 21 respectively, and the lower cam floor 15 being guided to the lower linear rail member 26a,
The balls of the front and rear ball casters 11 and 12 roll on the front and rear ball receiving rail plates 17 and 22. Therefore, the slide door 6 closes the opening 7 while sliding forward straight along the outer surface of the side wall 2.

At the same time as the front and rear upper cam floors 13 and 14 approach the front and rear straight rail members 18 and 21 to the front and rear curved rail members 19 and 24, the lower cam floor 15 and
Is the lower linear rail member 26a to the lower curved rail member 2
When approaching 6b, these curved rail members 19, 24,
Since 26b is bent inward, the balls of the front and rear ball casters 11 and 12 roll from the front and rear ball receiving rail plates 17 and 22 onto the bottom surface of the laterally elongated recessed portion 16, and the slide door 6 opens. It is drawn to the inside of the part 7 to finally seal it.

In this case, the curved rail material 24 on the upper rear side
Since the angle of bending of the slide door 6 is larger than that of the upper front curved rail member 19 and the lower curved rail member 26b, the sliding door 6 does not interfere with the rear edge of the opening 7, and The opening 7 is sealed with 6 securely. That is, the smaller the bending angle is, the less the resistance for sliding the slide door 6 is, but if the bending angles of the front and rear curved rail members 19 and 24 are the same,
When the sliding door 6 is closed, the sliding door 6 simply moves in parallel while remaining parallel to the opening surface of the opening 7. Therefore, the rear edge of the sliding door 6 becomes the rear edge of the opening 7. collide. However, if the bending angle has the magnitude relation as described above, the sliding door 6 moves obliquely with respect to the opening surface of the opening 7, and the front edge of the sliding door 6 moves toward the opening 7 first. While it goes in and draws in a gentle curved path, it goes in further, while the rear edge of the sliding door 6 draws a steep curve and enters the opening 7 later, so that the rear edge of the opening 7 becomes Avoiding collisions. Then, at the same time when the slide door 6 closes the opening 7, the door lock fitting 27 is caught by the catch fitting on the opening 7 side, and the door is locked.

In order to open the slide door 6 thus closed, the handle 27a is held and the slide door 6 is moved backward while unlocking. Due to the rearward movement force, the sliding door 6 is curved rail material 19/24/2.
The guide 6b draws a trajectory opposite to that when the slide door 6 is closed, and the rear edge of the slide door 6 first slides out of the opening 7 so that the rear edge of the slide door 6 slides backward while protruding outward from the opening 7. The opening 7 is opened while sliding straight rearward along the outer surface of the side wall 2 by the guide of the rail members 18, 21, 26a.

FIG. 7 shows a modification of the present invention in which front and rear upper rails 3 and 4 are provided on the upper surface of the ceiling 33 of the luggage compartment 1. Contrary to the above embodiment, the handle 27a is provided on the left side of the outer surface of the slide door 6 so that the lock 27c on the luggage compartment 1 side can be operated by the handle 27a via the operating rod 34. It is the one.

In the above embodiment, the sliding door 6 is slid from the rear to the front with respect to the opening 7 to be closed, but on the contrary, the sliding door 6 is closed in the opening 7. On the other hand, the form may be closed by sliding from the front to the rear.

[0024]

The effects of the present invention are listed below. The vertical load of the slide door is carried by the front and rear upper rails via the front and rear ball casters, and the front and rear upper and lower cam floors only guide the front and rear slides without receiving the vertical load of the slide door. Therefore, the conventional intermediate rail is not required, the intermediate rail and parts related thereto can be omitted to simplify the structure, and the outer surface of the outer wall of the luggage compartment is flat, resulting in a neat appearance. It is convenient for displaying characters and advertisements. Since there is no conventional folding link mechanism, the number of manufacturing steps and costs are reduced, and troubles are reduced. The vertical load of the slide door is borne by the front and rear upper rails via the front and rear ball casters, but since the ball casters roll in point contact with the ball receiving surface of the upper rail, the vertical load of the slide door is applied. Even if
The front and rear slides of the slide door and the inward and outward displacement relative to the opening can be performed easily with one touch. The front and rear front rails of the front and rear cam guides of the upper rail are bent inward, and the angle of the bent portion is changed between the cam guides of the front and rear upper rails.
Since the cam guide of the rear upper rail is larger than the cam guide of the front upper rail, the slide door moves diagonally to the opening surface of the opening when opening and closing the slide door. When closing, the front edge of the slide door enters the opening first and then moves in further while drawing a gentle curved path, while the rear edge of the slide door draws a sharp curve and opens. On the other hand, when the slide door comes in late and closes, on the contrary, the rear edge of the slide door comes out of the opening first, so avoiding interference between the slide door and the opening, especially the rear edge, and securely sealing and sealing the slide door. Can be opened and closed smoothly. The vertical load of the sliding door is carried by the front and rear upper rails through the front and rear upper brackets fixed to the upper end of the sliding door, and the vertical load is not applied to the lower bracket fixed to the lower end of the sliding door. Since it is merely for guiding the lower part of the door, it is less affected or interfered by the rear wheels of the vehicle, and the size of the door is not limited.

[Brief description of the drawings]

FIG. 1 is a side view of a van-type vehicle equipped with a slide door device according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a perspective view showing an open state of an example of a slide door device according to the present invention.

FIG. 4 is a perspective view showing a door closed state of the above.

FIG. 5 is an enlarged vertical sectional view of the slide door device.

FIG. 6 is an enlarged horizontal sectional view of the same.

FIG. 7 is a perspective view of a modification of the slide door device according to the present invention.

[Explanation of symbols]

 1 Luggage compartment 2 Side wall 3.4 Front and rear rails 5 and 4 Lower rail 6 Lower door 6 Sliding door 7 Opening 8 and 9 Front and rear upper brackets 10 Lower bracket 11 and 12 Front and rear ball casters 13 and 14 Front and rear upper cam floor 15 Lower cam floor 16 Horizontal Recess 17 Ball receiving rail plate on the front side 18 Linear rail material on the front side 19 Curved rail material on the front side 20 Cam guide part on the front side 21 Linear rail material on the rear side 22 Ball receiving rail plate on the rear side 24 Curved rail material on the rear side 25 Rear Side cam guide part 26a Straight rail material 26b Curved rail material

Claims (1)

(57) [Claims] 1. A slide door device for a van type vehicle in which an opening provided in a side wall of a luggage compartment of a van type vehicle is opened and closed by a slide door that slides back and forth, and a pair of front and rear upper portions is provided at an upper end portion of the slide door. Brackets, at least one lower bracket projecting inward from the luggage compartment at the lower end, upper cam floor and ball caster provided at the tip of each upper bracket, tip of the lower bracket A lower cam floor, and upper and lower upper rails in a straight line at the upper part of the luggage compartment.The front and rear upper rails are provided on the front and rear upper rails without receiving the vertical load of the slide door. The cam guides for guiding the cam floor and the vertical load of the slide door, which is the rolling surface of the ball caster. And a lower rail that guides the lower cam floor without receiving the vertical load of the slide door is provided in the lower part of the luggage compartment. Most of the upper rail cam guides and the lower rails are straight, and only the front end is bent inward of the luggage compartment. In the slide door device for a van type vehicle, the cam guide portion of the rear upper rail is larger than the cam guide portion of the front upper rail.