JPH1029432A - Slide door device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a heavy strong door to be opened or closed without requiring its opening space, and also to enable the two sheets of doors to be positioned in flush when they are closed. SOLUTION: An upper rail 4 and a lower rail 3 are provided to the upper and lower peripheries of vehicle opening respectively. The upper rail 4 is formed in a linear shape, and projecting arms 7A, 7B, 7C, 7D are provided to moving members 6A, 6B that move along the upper rail, and to the ends thereof the upper peripheries of doors 1A, 1B are connected. Guide rails 5 are provided along the upper rail 4, and both ends 53, 54, and 55, 56 of the guide rails 5 are bent, and the relative distances with regard to the upper rail 4 are gradually changed by these parts. The projecting rollers 64A, 64B, 64C, 64D of the projecting arms 7A, 7B, 7C, 7D are insertedly fitted to the guide rails 5, so that the projecting arms 7A, 7B, 7C, 7D are projectedly turned while the moving members 6A, 6B pass through the end parts of the upper rail 4.

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, and more particularly to a sliding door device in which two doors are flush with each other to close an opening of the vehicle.

[0002]

2. Description of the Related Art Some closed-type luggage vehicles are provided with an opening on the side of a luggage compartment to facilitate loading and unloading of luggage. For example, Japanese Utility Model Laid-Open No. 60-85218 discloses two doors. A door device that opens and closes in a sliding manner is shown.
According to this door device, there is no need to secure an open space for the door to the side of the vehicle as compared with the double door type, and there is an advantage that it is easy to handle the cargo in a narrow place. But,
Because the inner and outer doors have a level difference in the closed state, if there is a collapse in the luggage room, there is a problem that the inner door interferes with the luggage and can not be opened, and the level difference makes the appearance worse and the door There is also a problem that writing letters and pictures for advertising is not continuous and is distorted. Furthermore, it is necessary to provide two rails on both the upper and lower sides, which requires installation space. In addition, since the thickness of the side wall of the luggage compartment is required for two doors, the effective area of the luggage compartment is reduced. There is a problem of reduction.

On the other hand, Japanese Unexamined Utility Model Publication No. 58-182828 discloses a swing door in which a vehicle opening is opened and closed by two doors connected by a connecting link and a curved link.
According to this, the two doors can be positioned flush with each other in the closed state. However, when the door is opened, it is inevitable that the door pivots relatively outwardly of the vehicle. Doors cannot be used.

[0004]

Therefore, the first aspect of the present invention
It is an object of the present invention to provide a sliding door device for a vehicle which can open and close a heavy and strong door without requiring an open space thereof, and which can place two doors flush when closed. .

A second object of the present invention is to provide a sliding door device for a vehicle, which can reduce the installation space.

[0006]

In order to achieve the above object, a sliding door device for a vehicle according to the first aspect of the present invention comprises an upper rail (4) and a lower rail (3) disposed at upper and lower edges of a vehicle opening (O), respectively. ), And the upper edge is guided by the upper rail (4) via four-bar links (6A, 7A, 7B, 6B, 7C, 7D), and the lower edge is guided by the lower rail (3) to open and close. Doors (1A, 1
B), the doors (1A, 1B) are positioned flush with each other to close the vehicle opening (O), and are drawn out to the other door in the closed position to the outside. It is something that can be done.

In the first aspect of the present invention, since the door is opened and closed by the upper rail and the lower rail, the space to the side of the vehicle when the door is opened is smaller than that of a conventional swing type in which the door is turned and opened. In addition, since the load can be supported by the lower rail, a heavy and strong door can be opened and closed. Also, unlike the conventional pulling type, the two doors can be positioned adjacent to each other and flush with each other, so that there is no problem that the door cannot be opened due to a collapse of the load, etc. Pictures can be smoothly drawn on the door, and the design is improved. Further, since the two doors can be guided by the common upper rail and lower rail, the installation space of the apparatus can be reduced.

In the second aspect of the present invention, the upper rail (4) is linear, and the moving members (6A, 6B) moving along the upper rail (4) are provided with the swing arms (7A, 7B, 7).
C, 7D) and swing-out arms (7A, 7B, 7C,
7D), the upper edges of the doors (1A, 1B) are connected to the leading edge of the doors (1A, 1B), and the doors (1A, 1B) which are swung out of the vehicle by the swinging arms (7A, 7B, 7C, 7D) in the initial stage of opening are connected to the upper rail. A linear open movement is performed along (4).

According to the second aspect of the present invention, by providing the swing arm, the door is reliably swung out of the vehicle when the door is opened, and thereafter, the door is moved linearly outward with respect to the other door in the closed position. .

In the third aspect of the present invention, the guide rail (5) is provided along the upper rail (4), and the guide rail (5) has both ends (53, 54, 55, 56) curved, and the upper rail is formed at this portion. The relative spacing with respect to (4) is made to change gradually, and the oscillating arms (7A, 7B, 7
C, 7D) are fitted to guide rails (5) with oscillating rollers (64A, 64B, 64C, 64D) provided at positions eccentric from the center of rotation (71), and moving members (6A, 6B) are moved to upper rails (4). The swing arm (7A, 7B, 7C, 7D) swings and swings while passing through the end portion.

In the third aspect of the present invention, the swing of the swing arm can be reliably performed by the guide rail and the swing roller without requiring a special driving mechanism such as a motor. Also with this configuration, three rails are sufficient as compared with the conventional pulling type, so that the installation space is reduced.

In the present invention, the door (1A, 1B)
Is a pair of lower rollers (2A, 2B, 2C, 2)
D), and these lower rollers (2A, 2B, 2C,
2D) rolls in the lower rail (3), and the lower rail (3) has the door (1A,
1B) The lower rails (2B, 2C) on the rear side with respect to the door closing direction are connected to the curved rail portions (33, 34) which enter at the time of closing and retracted, and near the curved rail portions (33, 34). Is the rear lower roller (2
B, 2C) and engages the rear lower roller (2B, 2C) with the curved rail portion (33, 34).
Trap means (8A, 8B) for drawing in is provided.

According to the fourth aspect of the present invention, when the door is closed, only the rear lower roller is drawn into the curved rail portion by the trap means. Therefore, even if the common lower rail is used by the front and rear lower rollers, the door is reliably closed and drawn. You.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIG. 1 shows a side view of a covered freight vehicle provided with a slide door device of the present invention. In the figure, an opening for loading and unloading cargo is formed on the side of the luggage compartment L of the vehicle, and this opening is provided between the front pillar P1 and the center pillar P2 and between the center pillar P2 and the rear pillar P3. They are closed by doors 1A and 1B provided respectively. In the closed state, the two doors 1A and 1B are flush with each other as described later.

FIG. 2 is a vertical sectional view of a sliding door device for slidingly operating the two doors 1A and 1B.
FIG. 2 is an overall exploded perspective view of the slide door device. In FIG. 2, a state where the door is opened is indicated by a solid line, and a state where the door is closed is indicated by a chain line. Brackets 11 are respectively provided on the upper surfaces of the doors 1A and 1B at front and rear positions (FIG. 3), and each bracket 11 has a cylindrical connecting portion 111 formed therein. Note that the pair of brackets 11 of the front door 1A are actually installed in the front half (the left half of FIG. 3) as described later, and the pair of brackets 11 of the rear door 1B are actually set as described later. Is installed in the latter half. Each door 1
Stays 12 are attached to the front and rear ends of the lower surfaces of A and 1B, and lower rollers 2A, 2B, 2C and 2D are attached to the tips of the stays 12 facing inward of the vehicle. The front and rear doors 1A and 1B are provided with handles 13 at the front and rear ends of the door surface, respectively, and are provided at the rear and front ends of the doors 1A and 1B when the handle 13 is pulled in the door opening direction. A known lock mechanism 14 for unlocking is provided.

An upper rail 4 is provided at the upper edge (FIG. 2) of the body opening O, and moving members 6A and 6B moving along the upper rail 4 are provided at two front and rear positions as shown in FIG. Have been. FIG. 4 shows details of the front-side moving member 6A.
The moving member 6A is a long body, and vertical rollers 61A and 61B provided at the front and rear ends thereof roll on the upper rail 4. Horizontal rollers 62A and 62B are provided at inner positions close to the vertical rollers 61A and 61B, respectively. The horizontal rollers 62A and 62B have a pair of upper and lower roller bodies 621 (FIG. 2) and are opened to the outside of the vehicle. Rolling on the left and right side surfaces of the upper rail 4 having a C-shaped cross section. The moving member 6A is provided with swing-out arms 7A and 7B at front and rear ends of the upper surface, respectively. Each of the oscillating arms 7A and 7B is a triangular plate body, and a central corner portion is supported by a bracket 63 provided on a side surface of the moving member 6A by a shaft member 71 so as to be horizontally revolvable. A pin 72 projects downward from one end of the swing arm 7 </ b> A, and the pin 72 is fitted in a cylindrical connecting portion 111 (FIG. 2) of the door bracket 11.

At the other end of the swing arm 7A, a swing roller 64A is provided on a shaft member 73 erected on the upper surface.
The oscillating roller 64A rolls in a guide rail 5 (FIG. 2) having a substantially inverted U-shaped cross section disposed above the upper rail 4. As shown in FIG. 2, the diameter of the oscillating roller is such that the front oscillating roller 64A is larger in diameter than the rear oscillating roller 64B, and the large-diameter oscillating roller 64A is the lower half 51 of the guide rail 5 having a large width. Inside (FIG. 2), the small-diameter oscillating roller 64 </ b> B is located in the small-width upper half 52 of the guide rail 5. The rear moving member 6B is connected to the front moving member 6B.
A has the same structure as A, but differs in that the swing arms 7C and 7D are symmetrical in the front-rear direction with the swing arms 7A and 7B (FIG. 3). In addition, the front and rear moving members 6A, 6B
Each of the opposing end surfaces has a block-shaped cushion member 6.
5, a catch 66 formed by bending a leaf spring is provided at the rear end of the front moving member 6A so as to project rearward.

FIGS. 5 and 6 show details of the stay 12 and the lower roller mounting portion on the lower surface of the door. The stay 12 is formed by bending a plate body toward the distal end (the right end in each drawing), and has a plurality of mounting holes 121 provided in the base end in the width direction. The lower roller 2 </ b> A is located in the lower forked portion 211 of the rod-shaped support 21 erected on the lower surface of the tip of the stay 12, and
And is rotatably supported by the door 1 as shown in FIG.
Rolling and moving in the lower rail 3 having a U-shaped cross section provided at the lower edge of the body opening while supporting the load of A. A guide roller 23 is provided on the support 21 at an intermediate position so as to be rotatable at a horizontal position, and the outer periphery of the guide roller 23 is in contact with the inner wall of the lower rail 3. Other lower rollers 2B to 2D (FIG. 3)
, The structure of the mounting part is the same, but the front and rear doors 1
Lower rollers 2 provided at front and rear ends of A and 1B, respectively.
A and 2D support 21 has a baffle plate 24 as shown in FIG. 5 and FIG. 6 on the lower surface of the end of the stay 12 above the guide roller 23, in the closing direction of the doors 1A and 1B.

In FIG. 3, trapping mechanisms 8A and 8B are provided at front and rear positions on the vehicle body near curved rails 33 and 34 near the center of the lower rail 3, and details of the trapping mechanisms 8A and 8B are shown in FIG. Shown in In the figure, a cylindrical sheath 82 is provided on a base 81 fixed to a vehicle body.
A spring holding plate 83 is fitted around an outer periphery of an upper end 821 of the sheath 82 which is chamfered in parallel by an elliptical track-shaped mounting hole 831 provided at the center thereof.
The spring holding plate 83 has elongated spring guide holes 832 and 833 curved symmetrically about the mounting hole 831.
Are formed. A coil spring 84 is provided between the spring holding plate 83 and the base 81 on the outer periphery of the sheath 82, and both ends 841, 842 of the coil spring 84 are provided.
Are bent upward, and each spring guide hole 83
2,833 and penetrates upward in contact with the front end surface.
The trap lever 85 has a concave portion 851 for trapping at a distal end side edge thereof, and a shaft 8 protruding from a base lower surface.
6 are inserted into the sheath 82 via the collars 871 and 872 and are connected by a C-ring 88. Spring guide holes 832, 8 are provided on both sides of the intermediate portion of the trap lever 85.
Both ends 841 and 842 of the coil spring 84 extending upward through the through hole 33 are in contact with each other to bias and hold the trap lever 85 in an equilibrium posture. Trap lever 8
3 is orthogonal to the lower rail 3 as shown in FIG. 3 in the equilibrium posture, and the recess 851 is located on the lower rail 3. The front and rear trap mechanisms 8A and 8B have the same structure except that the recesses 851 of the trap lever 85 face each other.

FIG. 8 shows the positional relationship among the front and rear doors 1A, 1B, the lower rail 3, the upper rail 4, and the guide rail 5. The rail shapes shown in the figures are all viewed from above. In the figure, the upper rail 4 has a linear shape extending in the front and rear direction (left and right in the figure), and the vertical rollers 61A and 61B of the moving members 6A and 6B and the horizontal rollers 62A and 62B are fitted therein as described above (see FIG. 9 only the front end of the moving member 6A is shown). The moving members 6A and 6B move linearly along the upper rail 4. On the other hand, the guide rail 5 extends outside the vehicle in parallel with the upper rail 4 and has a wide lower half 5 as described above.
1 and both ends 53, 54 and both ends 5 of the upper half 52 having a small width.
5 and 56 are curved inward in the vehicle and upper rails 4 in plan view.
Intersects. Then, the upper half 52 of the guide rail 5
Inside the front and rear doors 1A and 1B, there are oscillating rollers 64B provided on the rear and front oscillating arms 7B and 7C, respectively.
64C (FIG. 3) are fitted therein, and in the lower half portion 51, oscillating rollers 64A, 64D provided on the oscillating arms 7A, 7D on the front and rear sides of the front and rear doors 1A, 1B are fitted. . Both ends 55,5 of the upper half 52 of the guide rail 5
6 is curved more inward in the left-right direction than both ends 53 and 54 of the lower half portion 51 (FIGS. 3 and 8), and one end 55 of the upper half portion 52 is formed.
And one end 53 of the lower half 51 and the other end 56 of the upper half 52
The distance between the bending start points of the other end 54 of the lower half 51 and the front and rear swing arms 7A, 7A on the moving members 6A, 6B
The interval between B and 7C, 7D is set equal.

The front and rear ends 31, 32 of the lower rail 3 are curved toward the inside of the vehicle, and the front and rear lower rollers 2A, 2A.
Curved rails 33 and 34 that are curved in the same shape as the ends 31 and 32 are connected to the left and right inward positions from the ends 31 and 32 at intervals of B and 2C and 2D.

The operation of the sliding door device having such a structure when the front door 1A is opened is shown in FIG.
0 and FIG. FIG. 10 is a horizontal cross section of the front end of the front door 1A, and FIG. 11 is a horizontal cross section of the rear end. When the door is closed, the swing roller 64A is located inside the curved end 53 of the guide rail 5 (FIG. 10), and the swing arm 7A is inclined toward the front of the vehicle (to the left in the figure) as shown in the figure. (A position in FIG. 10). In this state, when the door handle 13 (FIG. 3) is pulled backward to release the engagement of the lock mechanism 14, the shaft member 71 of the swing arm 7A moves linearly along the upper rail 4, whereas the swing roller 6
4A crosses the upper rail 4 and moves along the curved end 53 of the guide rail 5 where the relative distance gradually changes.
Therefore, as the front door 1A moves rearward, the swing arm 7A gradually turns to the outside of the vehicle (downward in the figure) at each of the positions B, C, and D in FIG. 10, and accordingly, the front door 1A. Is swung out of the vehicle. In accordance with the swinging movement of the front door 1A, the lower roller 2A (the guide roller 23 is shown in FIG. 11) moves from the curved portion 31 to the straight portion in the lower rail 3 as shown at positions A, B, C and D. To move rearward on the outside that does not interfere with the rear door 1B. Even if the front door 1A is fully opened, since the moving member 6A is provided in the front half of the front door 1A as described above, it does not directly interfere with the moving member 6B of the rear door 1B, and the cushion member 65 (FIG. 3) abut each other to reduce the impact, and the tip of the catch 66 is elastically locked to the front end of the moving member 6B of the rear door 1B, thereby holding the front door 1A in a fully open state. .

When closing the opened front door 1A, pulling the door handle 13 forward causes the front and rear swing rollers 6 to move.
4A and 64B respectively roll in the upper half 52 and the lower half 51 of the upper rail 5 to bend end portions 53 and 5 respectively.
Return to 5. At this time, as shown in FIG. 12, the front lower roller 2A also moves back in the lower rail 3 to the left in the drawing, but since the baffle plate 24 is attached to the support 21 of the front lower roller 2A, K At this position, the baffle plate 24 contacts the trap lever 85 and pushes it. Therefore, as shown in the position L in the figure, the trap lever 85 is turned against the spring force of one end 841 of the coil spring 84 without engaging with the support 21 of the front lower roller 2A, and the front lower roller 2A The vehicle travels straight in the lower rail 3 without entering the curved rail portion 33. After the front lower roller has passed, the trap lever 85 returns to the equilibrium position indicated by the solid line in FIG. 12 by the spring force of one end 841 of the coil spring 84. After that, the rear lower roller 2B
As shown in FIG. 13, when the movable body returns to the left in the lower rail 3 to reach the position M in the figure, the support 21 engages with the tip recess 851 of the trap lever 85 at the equilibrium position. The trap lever 85 pivots against the spring force of the one end 841 of the coil spring 84 while being engaged with the support 21, and securely moves the rear lower roller 2 </ b> B into the curved rail portion 33 as shown in the position N in the figure. invite.

In this manner, the front door 1A, which has been closed again, has the weather strips W1, W2 (FIG. 2) and the front pillars P1, P2 provided at the upper and lower edges O of the vehicle body.
Weather strip W provided on side edge of center pillar P2
3 and W4 (FIGS. 10 and 11) are pressed against the back surface to ensure the sealing property of the cargo room. In this closed state, the surfaces of the front door 1A and the rear door 1B are flush with each other as shown in FIG. The opening and closing of the rear door 1B is performed by the same operation as that of the front door 1A.

(Other Embodiments) In the first embodiment, the case where the center pillar P2 is located at the opening of the vehicle has been described. However, the center pillar P2 is eliminated, and the front and rear doors 1A,
The space between the doors 1B may be sealed with a sealing material provided on each of the doors 1A and 1B.

[0026]

According to the present invention, a heavy and strong door can be opened and closed without requiring an open space, and when closed, the two doors can be positioned flush. Further, the installation space can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall side view of a vehicle including a slide door device, showing one embodiment of the present invention.

FIG. 2 is a vertical sectional view taken along line II-II of FIG.

FIG. 3 is an overall exploded perspective view of the slide door device.

FIG. 4 is an overall plan view of a moving member.

FIG. 5 is a side view showing a mounting structure of a lower roller.

FIG. 6 is a plan view showing a mounting structure of a lower roller.

FIG. 7 is an exploded perspective view of the trap mechanism.

FIG. 8 is a schematic side view of a door and a schematic plan view of a rail.

FIG. 9 is a perspective view of a main part of a swing arm installation unit.

FIG. 10 is a horizontal sectional view taken along line XX of FIG. 8;

11 is a horizontal sectional view taken along line XI-XI in FIG.

FIG. 12 is a partial sectional plan view showing the operation of the trap mechanism.

FIG. 13 is a partial sectional plan view showing the operation of the trap mechanism.

[Explanation of symbols]

1A, 1B door, 2A, 2B, 2C, 2D lower roller, 21 support, 3 lower rail, 33, 34 curved rail, 4 upper rail, 5 guide rail, 5
3, 54, 55, 56 ... both ends, 6A, 6B ... moving member, 64A, 64B, 64C, 64D ... oscillating roller, 7
A, 7B, 7C, 7D: swing arm, 71: shaft member, 8
A, 8B: trap mechanism, O: vehicle opening.

Continued on the front page (72) Inventor Yukio Yamada 100 Kanayama, Ichiriyama-cho, Kariya-shi, Aichi Pref.

Claims (4)

[Claims] 1. An upper rail (4) and a lower rail (3) disposed on upper and lower edges of a vehicle opening (O), respectively.
The upper edge is a four-bar link (6A, 7A, 7B, 6B, 7C, 7
D) via the upper rail (4), and two doors (1A, 1B) whose lower edge is guided by the lower rail (3) to open and close.
B), wherein the vehicle opening (O) is located adjacent to and flush with each other to close the vehicle opening (O), and the other door in the closed position is pulled out to the outside and opened. Sliding door device. 2. The upper rail (4) is linear, and a swing arm (7A, 7B, 7C, 7) is attached to a moving member (6A, 6B) moving along the upper rail (4).
D) to form the four-bar link, and the doors (1A, 1A, 7A, 7B, 7C, 7D)
1B) by connecting the upper edges thereof, and in the early stage of opening the swing arm (7
The sliding door device for a vehicle according to claim 1, wherein the doors (1A, 1B) swung out of the vehicle by A, 7B, 7C, and 7D are linearly opened and moved along the upper rail (4). 3. A guide rail (5) is provided along the upper rail (4), and the guide rail (5) has both ends (53, 54, 55, 56) curved so that the upper rail (5) is formed at this portion. 4), the relative distance is gradually changed, and the swing arm (7A, 7
B, 7C, 7D) at the position eccentric from the center of rotation (71) of the swinging rollers (64A, 64B, 64C, 64).
D) is fitted on the guide rail (5), and while the moving member (6A, 6B) passes through the end of the upper rail (4), the swing arm (7A, 7B, 7C, 7D).
3. The slide door device for a vehicle according to claim 2, wherein the slide door device swings out. 4. The door (1A, 1B) has a pair of lower rollers (2A, 2B, 2C, 2D) on the lower surface thereof,
These lower rollers (2A, 2B, 2C, 2D) roll inside the lower rail (3), and the lower rail (3) is moved in the door closing direction when the doors (1A, 1B) are retracted and closed. Curved rail portions (33, 34) into which the lower rollers (2B, 2C) on the rear side enter.
And the curved rail portions (33, 34).
Near the rear lower roller (2B, 2C) by engaging with the support (21) of the rear lower roller (2B, 2C).
The slide door device for a vehicle according to any one of claims 1 to 3, further comprising trap means (8A, 8B) for drawing C) into the curved rail portions (33, 34).