JP2593296Y2 - Sliding door device for vehicles - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device for a vehicle used for opening and closing a doorway provided on a side surface of a one-box vehicle or the like, and more specifically, a lower end of the sliding door is separated from a vehicle body. The present invention relates to a sliding door device for a vehicle in which the distance between the sliding door and the upper end is larger than the distance from the vehicle body.

[0002]

2. Description of the Related Art In order to move a sliding door provided on the side of a one-box vehicle for opening and closing a doorway parallel to a vehicle body, it is necessary to first move the sliding door outwardly of the vehicle body. It is. Hereinafter, moving the slide door outward of the vehicle body is referred to as a lift. Conventionally,
When the slide door is lifted, a method of parallel lifting the slide door and a method of making the lift amount of the lower end portion of the slide door larger than the lift amount of the upper end portion are widely used. How to lift the sliding door in parallel
Since the center of gravity of the sliding door does not move in the vertical direction, there is an advantage that no extra load is applied when opening and closing the sliding door. However, in general, the side outer surface of a one-box vehicle is curved outward at the center portion, while the side inner surface forming a side wall in the vehicle is flat. Since it is necessary to evacuate from the outer surface, it is necessary to increase the lift amount at the upper end together with the lift amount at the lower end.

On the other hand, a slide door device has the following configuration. That is, the upper guide rail is attached to the upper edge of the entrance of the vehicle body, and the lower guide rail is attached to the lower part of the floor that forms the lower edge of the entrance. Here, the upper guide rail includes a changing portion that moves the slide door parallel to the vehicle body and simultaneously lifts the upper end of the slide door. In addition, the lower guide rail includes a change unit that moves the slide door in parallel with the vehicle body and simultaneously lifts the lower end of the slide door. The sliding door can rotate with an upper roller that rolls horizontally in the upper guide rail, a lower roller that rolls horizontally in the lower guide rail, and a vertical roller that supports the load of the sliding door. It is supported by.

[0004] The upper end of the slide door is lifted outwardly with respect to the vehicle body along the upper guide rail, and is simultaneously moved in parallel. Further, the lower end of the slide door is lifted outward with respect to the vehicle body along the lower guide rail, and simultaneously moves in parallel. Therefore, in the method of lifting the sliding door in parallel, the upper guide rail and the lower guide rail have the same changing portion.
On the other hand, in the method in which the lift amount at the lower end of the slide door is larger than the lift amount at the upper end, the changing portion of the lower guide rail changes more than the changing portion of the upper guide rail. In any case, the vehicle body needs a certain space in the left and right direction for installing the upper guide rail and the lower guide rail.

[0005] Here, since the lower guide rail is usually arranged under the floor, there is no problem even if the space in the left-right direction becomes large. However, since the upper guide rail is provided near the upper end edge of the entrance, there is a problem in that if the installation space in the left-right direction is increased, the room becomes narrower. This problem has become a particular problem in high-roof vehicles with a raised ceiling in recent years. In order to solve this problem, in order to reduce the installation space in the left-right direction of the upper guide rail, a method in which the lift amount at the lower end of the slide door is larger than the lift amount at the upper end has been widely adopted.

[0006]

However, the conventional sliding door device for a vehicle has the following problems. (1) The center of gravity of the slide door does not move vertically when the slide door is lifted in parallel, but when the lift amount at the lower end of the slide door is larger than the lift amount at the upper end, It rises by several mm. That is, as shown in FIG. 6, when the slide door 12 is lifted from the position 12B to the position 12C, the center of gravity of the slide door rises by g in the figure. Therefore, there is a problem that the operating force for opening the slide door becomes heavy when the center of gravity of the slide door moves upward. That is,
FIG. 8 shows the relationship between the opening amount of the sliding door and the operating force of the sliding door.

In the conventional slide door, when the opening amount is increased, a peak 51a is again generated in the operation force. The sliding door weighs 35 to 40 kg and has a peak 51 of operating force.
a is also about 4 kg. In opening and closing the slide door, it is natural that the maximum operation force is required when the opening and closing amount is 0, and there is little problem because the operator also expects it. The necessity of a large operation force again gives the operator a sense of incongruity, and complaints have been raised that the operability is poor. Poor operability is a particular problem when a one-box car is a family car and a child or an elderly person operates a sliding door.

(2) At the beginning of opening of the slide door, the lower guide rail is provided with a curved or polygonal change portion in order to move the slide door parallel to the vehicle body and lift the slide door at the same time. When opening the sliding door, a large force is required to move the sliding door in parallel with the vehicle body and at the same time lift the sliding door. Further, conventionally, the rotating shaft of the vertical roller is fixed to the sliding door in a state in which the vertical roller supporting the load of the sliding door is easily moved in parallel to the vehicle body. Therefore, as shown in FIG. , The vertical roller 13 has moved by sliding in the horizontal direction. This also contributed to further increasing the operating force when the sliding door started to be opened.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and when the sliding door is lifted, even if the lift amount at the lower end is larger than the lift amount at the upper end, the fluctuation of the operating force is reduced. It is an object of the present invention to provide a sliding door device for a vehicle that has less operability and less operability.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a sliding door device for a vehicle according to the present invention is a sliding door device which can be moved in parallel to a vehicle body to open and close an entrance on a vehicle side. There is an upper guide rail attached to the upper edge of the entrance / exit, an upper roller that rolls horizontally in the upper guide rail, and a lower guide rail attached to the floor that forms the lower edge of the entrance / exit. A lower roller for rolling horizontally in a lower guide rail, and a vertical roller for supporting a load of the slide door, wherein the upper guide rail comprises: (a) a slide; A changing portion for moving the door parallel to the vehicle body and simultaneously lifting the upper end of the slide door outward by a predetermined amount Y; (b) moving the slide door flat with respect to the vehicle body; (2) The lower guide rail moves (a) the slide door parallel to the vehicle body, and at the same time, lowers the lower end of the slide door by a predetermined amount Y. (B) moving the slide door parallel to the vehicle body at the same rate of change as the change section, and (b) moving the slide door in parallel with the vehicle body and further lowering the lower end of the slide door by a predetermined amount. Only, having a second changing portion that lifts in the outer direction of the vehicle body with a change rate smaller than the change rate of the first changing portion, and (c) a parallel portion that moves the slide door parallel to the vehicle body. Features.

Further, in the sliding door device for a vehicle according to the present invention, in the sliding door device described above, the vertical roller is held so as to be able to swing horizontally with respect to the lower guide rail.

[0012]

In order to solve the above problems, the sliding door for a vehicle according to the present invention moves parallel to the vehicle body to open and close the entrance on the side of the vehicle. At that time, the upper roller attached to the upper end of the slide door rolls horizontally in the upper guide rail attached to the upper edge of the entrance / exit, and moves the upper end of the slide door in the lift direction and the vehicle body. Move in parallel direction. The lower roller attached to the lower end of the sliding door rolls horizontally in the lower guide rail attached to the floor that forms the lower edge of the entrance / exit, and moves the lower end of the sliding door to the lift direction and the vehicle body. To move in the parallel direction.

Here, the upper guide rail moves (a) the slide door in parallel with the vehicle body,
When the upper end of the slide door is a change portion that lifts the upper end of the slide door outward by a predetermined amount Y, the upper end of the slide door moves parallel to the vehicle body and lifts at the same time. At this time, when the lower guide rail is the first change portion having substantially the same change rate as the change portion of the upper guide rail, the lower end of the slide door is lifted in parallel with the upper end.
Next, when the upper guide rail is a parallel portion (b) for moving the slide door parallel to the vehicle body, the upper end of the slide door is moved parallel to the vehicle body. At this time, when the lower guide rail is (b) the second change portion, only the lower end portion of the slide door is further lifted by a predetermined amount. Since the rate of change at this time is smaller than the rate of change of the first changing portion, a sudden change in the operating force of the slide door is prevented. Next, the slide door is moved parallel to the vehicle body with the lift amount Y at the upper end and the lift amount X at the lower end, and the slide door is fully opened.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sliding door device for a vehicle according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 shows the entrance 6 provided on the side of the one-box vehicle.
0 and the configuration of the sliding door 12 are shown in perspective views. FIG. 6 shows the sliding door 12 and the upper guide rail 21.
The configuration of the lower guide rail 26 is shown in a conceptual diagram. The upper guide rail 21 is fixed to the upper edge of the entrance 60. The lower guide rail 26 is fixed below the floor 62 that forms the lower edge of the entrance 60. Further, a center guide rail 24 is fixed to the vehicle body. An upper bracket 23 for rotatably supporting the upper roller 22 is fixed to an upper end of the slide door 12. A lower bracket 16 for rotatably supporting the lower roller 14 and the vertical roller 13 is fixed to a lower end of the slide door 12.

FIG. 2 is a sectional view showing a detailed configuration around the lower roller 14 and the lower guide rail 26 when the slide door 12 is closed. FIG. 3 is a cross-sectional view showing a detailed configuration around the lower roller 14 and the lower guide rail 26 when the slide door 12 is fully opened. A lower guide rail 26 having a U-shaped cross section is fixed to the lower surface of the vehicle body panel 19. Body panel 1
9, an under panel 18 which abuts on the vertical roller 13 and supports the load of the slide door 12 is fixed by welding. Let A be the distance from the outer surface of the slide door 12 to the reference 25 of the vehicle body panel. Further, the distance from the outer surface of the sliding door 12 in the fully opened state shown in FIG. Therefore, the sliding door 12
Is the lift amount X at the lower end portion of X is X-BA.

A lower bracket 16 is fixed to the inner surface of the lower end of the slide door 12. As shown in FIG. 7, a swing shaft 15 is fixedly provided at the distal end of the lower bracket. A swing bracket 17 is supported so as to be swingable about the swing shaft 15. In the center of the outer surface of the swing bracket 17, a vertical roller 13 is rotatably supported. Two lower rollers 14 are supported on both sides of the vertical roller 13 so as to be rotatable in the horizontal direction. Since the lower roller 14 fits inside the U-shape of the lower guide rail 26 and rolls, the slide door 12 moves along the lower guide rail 26. Since the two lower rollers 14 are provided on both sides of the vertical roller 13, the lower roller 14 can stably roll in the lower guide rail 26 even when an external force is applied to the vertical roller 13.

FIG. 4 shows the upper roller 22 and the upper guide rail 2 when the slide door 12 is closed.
A detailed configuration around 1 is shown in a sectional view. Further, positions of the upper roller 22 and the upper guide rail 21 in a state where the slide door 12 is fully opened are indicated by a two-dot chain line. Let Y be the lift amount between the outer surface of the upper end of the sliding door 12 in the closed state and the outer surface of the upper end of the sliding door 12 in the fully opened state. An upper guide rail 21 having a substantially U-shaped cross section is fixed to the lower surface of the vehicle body panel 20.
An upper bracket 23 is fixed to the upper end of the slide door 12. At the tip of the upper bracket 23,
An upper roller 22 is supported rotatably in the horizontal direction. The upper roller 22 fits inside the U-shape of the upper guide rail 21 and rolls.
Moves along the upper guide rail 21.

Next, the lower guide rail 26 and the upper guide rail 21 which are main parts of the present invention will be described. FIG. 1 shows the shape of the rail. Sliding door 1 on horizontal axis
2 shows the coordinates (mm) in the opening direction, and the vertical axis shows the coordinates (mm) in the lift direction of the slide door 12. 59
Shows the shape of the upper guide rail 21 and 58 shows the shape of the lower guide rail 26 of the present invention. Also, 5
7 shows the shape of the lower guide rail in the conventional slide door device.

The shape 59 of the upper guide rail 21 allows the slide door 12 to be opened in parallel to the vehicle body and, at the same time, moves the upper end of the slide door 12 linearly and quickly by a predetermined amount Y in the lift direction. That is, when the slide door 12 is opened by about 150 mm, the movement of Y = 50 mm has been completed, and thereafter, the slide door 12 only moves parallel to the vehicle body. Upper guide rail 21
The rate at which the shape 59 changes in the lift direction is the inclination θ1 of the shape 59 in FIG. 1 = 27 degrees. Also, sliding door 1
The opening amount when the shutter 2 is fully opened is about 800 to 900 mm. The shape 57 of the conventional lower guide rail opens the slide door in parallel to the vehicle body and moves the lower end of the slide door almost linearly and quickly by a predetermined amount X in the lift direction. That is, the sliding door is 300m
When the door is opened by about m, the movement of X = about 120 mm has been completed, and then the slide door only moves parallel to the vehicle body.

The shape 58 of the lower guide rail of the present invention is as follows.
In the first change portion until the opening amount of the door becomes I, the inclination θ1 changes at 27 degrees. Then, in the second change portion where the opening amount of the door is from I to J, the change is at the inclination θ2 = 13.5. That is, the rate of change θ2 in the second change section is set to half of the rate of change θ1 in the first change section. In an actual guide rail, since the upper guide rail 21 cannot be bent sharply, the upper guide rail 21 reaches a predetermined lift amount Y with a gentle curve from when the opening amount of the door becomes H. The shape 58 of the guide rail 26 matches the shape 59 of the upper guide rail 21 in the section H.

Next, the operation of the sliding door device for a vehicle having the above configuration will be described. FIG. 8 shows actual measured values of the operating force of the sliding door 12. The horizontal axis indicates the opening amount (mm) of the slide door 12, and the vertical axis indicates the operating force (Kg) required to open the slide door 12. The operation force is a value measured when the slide door 12 is moved at a slow speed so that the inertial force of the slide door 12 does not increase. The operating force 51 of the conventional sliding door is 15
There was a peak 51a whose operating force was about 4 kg at around 0 mm.

In the sliding door device of the present invention, according to the operating force 53 when the lower guide rail 26 is used, the peak 51a of the operating force does not exist. Therefore, although the initial operation force is the same as the conventional one, there is no significant change in the operation force after the opening operation is started, so that the operability is good and the child or the elderly can easily use it.

The vertical roller 13 of the present invention is attached to a swing bracket 17 that can swing with respect to a lower bracket 16 fixed to the slide door 12. Therefore, FIG.
Since the lower guide rail 26 has an oblique shape, the swing bracket 17 swings with respect to the lower bracket 16 when the shape of the vertical roller 13 is oblique, as shown in FIG. Since it is always directed in the traveling direction, it is possible to eliminate an extra load due to slippage which has conventionally occurred. Thereby, the operating force 54 of the sliding door device of the present invention is reduced as shown in FIG.

As described in detail above, according to the vehicle sliding door device of the present embodiment, the lower guide rail is
Since the first guide has the first change portion having the same change rate θ1 as the upper guide rail and the second change portion having the change rate θ2 smaller than θ1, the lift of the upper end portion of the slide door is completed, and only the lower end portion is completed. However, when the sliding door is further lifted by a predetermined amount, the operating force of the sliding door is prevented from suddenly changing.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various applications are possible. That is, in the present embodiment, the slope of the second change portion is set to the constant value θ2, but may be gradually changed within a range smaller than the slope θ1 of the first change portion. In this case, the shape of the second change portion becomes close to a curve. In the present embodiment, the value of the inclination θ2 of the second change portion is set to half of θ1, but any value may be used as long as θ2 is smaller than θ1.

[0026]

As is apparent from the above description, according to the sliding door device for a vehicle of the present invention, the lower guide rail has the first change portion having the same change rate θ1 as the upper guide rail, And the second change portion having the smaller change rate θ2, the lift of the upper end of the slide door is completed, and when only the lower end is further lifted by a predetermined amount, the operating force of the slide door is reduced. A sudden change is prevented, and the operability of the slide door can be improved. As a result, even a child or an elderly person can easily and safely operate as a family car.

[Brief description of the drawings]

FIG. 1 is a data diagram showing shapes of an upper guide rail and a lower guide rail.

FIG. 2 is a sectional view around a lower guide rail in a state where a slide door is closed.

FIG. 3 is a sectional view around the lower guide rail in a state where the slide door is fully opened.

FIG. 4 is a cross-sectional view around the upper guide rail.

FIG. 5 is an external perspective view of the slide door device.

FIG. 6 is a conceptual diagram showing a configuration of a slide door device.

FIG. 7 is an external perspective view around a vertical roller.

FIG. 8 is a data diagram showing an operation force of a slide door.

FIG. 9 is an explanatory view showing a locus of a vertical roller of the present invention.

FIG. 10 is an explanatory diagram showing a locus of a conventional vertical roller.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Slide door 13 Vertical roller 14 Lower roller 17 Swing bracket 21 Upper guide rail 22 Upper roller 26 Lower guide rail 58 Shape of lower guide rail 59 Shape of upper guide rail θ1 Rate of change at first change portion θ2 Rate of change at second change portion Rate of change

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60J 5/06

Claims (2)

(57) [Scope of request for utility model registration] 1. A slide door device movable in parallel to a vehicle body to open and close an entrance on a side surface of a vehicle,
An upper guide rail attached to the upper edge of the entrance / exit, an upper roller that rolls in the upper guide rail in the horizontal direction, a lower guide rail attached to the floor forming the lower edge of the entrance / exit, and a lower guide. A vehicle slide door device having a lower roller that rolls horizontally in a rail and a vertical roller for supporting the load of the slide door, wherein: (1) the upper guide rail includes: A changing portion for moving the upper end of the slide door outward by a predetermined amount Y at the same time as moving the slide door in parallel to the vehicle body; and (b) a parallel portion for moving the slide door parallel to the vehicle body. (2) the lower guide rail moves (a) the slide door parallel to the vehicle body, and at the same time, places the lower end of the slide door at the same time. (B) moving the slide door in parallel to the vehicle body by an amount Y with a change rate substantially the same as that of the upper guide rail and moving the slide door parallel to the vehicle body; A second changing portion that lifts the lower end portion of the sliding door outwardly of the vehicle body by a predetermined additional amount at a change rate smaller than the change rate of the first changing portion; A sliding portion for moving the vehicle in parallel. 2. The sliding door device for a vehicle according to claim 1, wherein the vertical roller is held so as to be swingable in a horizontal direction with respect to the lower guide rail. apparatus.