JPH0222475Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a new sliding door opening/closing device.

Conventionally, a sliding door opening/closing device generally employed in vehicles, etc. has a single rail 100 horizontally provided above the entrance/exit A, as shown in FIG.
A pair of left and right sliding door hangers 103, 103 and 104, 104 are provided at the upper ends of the pair of sliding doors 101, 102, respectively.
The door wheel 105 attached to these sliding door hangers,
105, 106, 106 are mounted on a rail 100 so as to be freely movable, and the sliding doors 101, 102 are hung so that they can be opened and closed in opposite directions. Ingredients 10
3, 103, 104, and 104 are provided with anti-slip rollers (not shown) so as to come into contact with the lower surface of the rail 100.

The above-mentioned sliding door opening/closing device is driven by an appropriate driving means (not shown), and the door roller 1 moves on the rail 100.
05, 105, 106, 106 are running while both sliding doors 101, 102 are opened on both sides of entrance A as shown by the dashed line in the figure. 10
Since the rails 100 must be extended on both sides of the entrance A by an opening/closing stroke of 1,102, the length of the rail 100 is approximately twice as long as the width of the entrance A. Therefore, the device becomes larger and requires a wider installation space. There were problems such as the need for space. Furthermore, the above-mentioned sliding door opening/closing device has door wheels 105, 105, 106,
106 simply runs on the rail 100, it causes problems such as rattling when running, and even if a roller to prevent it from rolling is provided on the underside of the rail 100 to prevent this, the sliding door hanger 10
3, 103, 104, and 104 had to be increased in vertical dimension, and there was also a problem in terms of installation space.

This invention was made to solve this problem, and will be explained in detail below based on FIGS. 1 to 8 showing one embodiment.

That is, the embodiment shown in FIGS. 1 to 8 is a push-out type vehicle sliding door opening/closing device in which a pair of sliding doors 3a and 3b are pushed out from the entrance A of the vehicle and opened/closed along the outer surface of the vehicle body wall B. As an example,
In FIG. 1, numeral 1 is a movable support base with an I-shaped cross section that serves as a base for mounting and integrating the main components. As shown in the figure, a pair of rails 2a and 2b each having a substantially C-shaped cross section are fixed back to back.

Further, 4a and 4b are sliding door hangers fixed to the upper end corners of the sliding doors 3a and 3b, respectively, on the door tip side.
As shown in FIG. 8, one sliding door hanger 4a has an arm 47a projecting in the closing direction of the sliding door 3a.
At the same time, four door wheels 41 are attached to the arm 47a with bolts attached to the vertical piece 481a of the suspension main body 48a.
a, 42a, 43a, and 44a, and the vertical piece 481a is a hinge. At the tip of the horizontal piece 482a of the hanging tool main body 48a is a mounting seat plate 4.
83a is integrally formed, and this mounting seat plate 48
3a is bolted to the upper end corner of the sliding door 3a. Also, door wheels 41a, 42a, 43a,
44a are diagonally arranged two at a time to form a substrate 45.
a, 46a, and this substrate 45a,
46a is attached by bolting to the back surface of arm 47a. As shown in FIG. 1, this sliding door hanging tool 47a has an arm 47a located above the other sliding door 3a when the door is closed, and the door wheels 41a and 43a on the diagonally upper side are positioned above the rail 2a.
In the upper concave groove part 21a, and the door roller 42 on the diagonally lower side.
a, 44a in the lower groove part 22a of the rail 2a,
The arms 47a are fitted and press-contacted to each other so that they can move freely, and when the sliding door 3a is fully opened, the arm 47a moves along the rail 2a to a position above the sliding door 3a when the sliding door 3a is fully closed. Therefore, it is sufficient for the rail 2a to be slightly shorter than the width of the entrance A, as shown in FIG.

In addition, bolt insertion holes 471a, 472a, 473a, 474a are provided in the arm 47a to bolt the boards 45a, 46a on which the door wheel is pivoted.
As shown in FIG. 8, since the holes are elongated vertically, it is possible to finely adjust the mounting positions of the boards 45a and 46a, and therefore the door wheels 41a and 43a on the diagonally upper side and the door wheels 41a and 43a on the diagonally lower side Side door wheel 42a,
44a can be securely fitted and pressed into the upper recessed groove 21a and the lower recessed groove 22a of the rail 2a, respectively, so there is no wobbling when the sliding door hanger 4a moves, and even if the sliding door 3a moves slightly back and forth. Even if the vertical piece 48 of the hinge structure of the hanging device main body 4a
Since 1a absorbs this, no rattling occurs in the same way.

The other sliding door hanging tool 4b has substantially the same configuration as above, and the horizontal piece 482b of the L-shaped hanging tool main body 48b is shortened so that both sliding doors 3a and 3b can be closed together without creating a step. These points,
The arm 47b is located above the sliding door 3a, and the door wheels 41b, 43b and 4 are attached to the arm 47b.
The only difference is that 2b and 44b are fitted and press-welded to the upper groove 21b and lower groove 22b of the other rail 2b so as to be freely movable. The numbers will only be indicated with a suffix "b" and their explanation will be omitted.

As mentioned above, a pair of rails 2a, 2b suspend sliding doors 3a, 3b via sliding door hanging tools 4a, 4b.
A movable support base 1 with
As shown in the figure and FIG.
2 and air cylinders 5, 5 for extrusion and return are attached. Slide bearing 12, 12
is the shaft 1 of the bearing brackets 13, 13 which protrudes inward from the vehicle body wall B on both sides above the entrance/exit A.
4, 14, and the air cylinders 5, 5 are oriented perpendicularly to the car body wall B as shown in FIG. They are connected and fixed with pins 53.

Also, on the top surface of this movable support base 1, there is a piston rod 61 with a long stroke sufficient for opening and closing the sliding door.
1, two racks 62a, 62b, and these racks 62a, 62b.
An opening/closing driving means 6 consisting of a pinion 63 interposed between the opening and closing drive means 6 is provided. One rack 62b
is connected and fixed via a connecting plate 64 to a piston rod 611 that moves in and out in the opening/closing direction of the sliding doors 3a, 3b, and is configured to move in the same direction as the piston rod 611. It's starting to move in the opposite direction. These racks 62a and 62b are connected to the arms 47a and 4 of the sliding door hangers 4a and 4b, respectively.
7b and parallel to each other, one rack 6
2a and arm 47a, and the other rack 62b and arm 47b are connected and fixed via respective connecting members 65a and 65b.

Further, a pair of connecting means 8a, 8b is provided on both sides of the entrance A, as shown in FIG.
Auxiliary means 7a and 7b are provided to auxiliarily push the lower part out of the entrance/exit A and return it. One of the connecting means 8a includes upper and lower vertical shafts 81a, 82a which are rotatably supported, and universal joints 83a, 84.
It consists of a diagonal shaft whose both ends are connected to the vertical shafts 81a and 82a via a shaft, and a rotating arm 86a fixed at right angles to the upper end of the upper vertical shaft 81a. As shown in the figures and FIG. 4, the movable support base 1 is connected to one of the fixed arms 15a and 15b fixed to the lower surface of both ends by a pin 87a, so that the movable support base 1 is attached to the vehicle body. When moving toward the wall B, the rotating arm 86a rotates toward the vehicle body wall B about the vertical axis 81a together with the vertical axis 81a. The auxiliary means 7a at the lower end of the connecting means 8a has two rotatable rollers 7 at its tips.
1a, 72a, the L-shaped arm 73a is fixed at right angles to the lower end of the vertical shaft 82a on the lower side of the connecting means 8a, and one roller 71a is connected to the sliding door 3a. It is fitted into the lower guide groove 31a.

Since the connecting member 8b and the auxiliary means 7b on the opposite side are constructed in exactly the same manner as above, the same parts are simply indicated by the same numbers with "b" added to the end in the drawings, and their explanations will be omitted. Omitted.

In addition, both the sliding doors 3a and 3b have door end gaskets 32a and 32 along the edges on the door end side, as in the conventional case.
b is provided, and the upper and lower edges of the sliding door and the edge of the door end are sealed with sealing pads A ₁ (Fig. 2, 3) around the entrance A.
(see FIG. 5 and FIG. 5).

The operation of the sliding door opening/closing device configured as above will be explained next.

First, when the door is closed as shown in FIG.
Since pressurized air is supplied from 13, both sliding doors 3a and 3b are in the closed position and the door end gaskets 32a and 32b are pressed against each other, and the air cylinders 5 and 5 for pushing out and returning have ports. 5
Since pressurized air is supplied from 5, both sliding doors 3a and 3b are in the return position flush with the vehicle body wall B and are in pressure contact with the seal gasket _A1 on the periphery of the entrance A. Therefore, the interior of the vehicle is kept airtight.

When opening the sliding door from this closed state, when the opening/closing operation valve (not shown) is switched from closed to open, pressurized air is initially supplied only to the air cylinders 5, 5 for pushing and returning from the port 54 on the opposite side. The air cylinder 61 of the opening/closing driving means remains in the same state. When pressurized air is supplied to the air cylinders 5, 5 from the port 54 in this way, the cylinders 5, 5 move toward the car body wall B by the amount of the stroke, and the movable support that is in a fixed relationship with the cylinders 5, 5 moves toward the car body wall B. The base 1 also moves linearly toward the vehicle body wall B guided by slide bearings 12, 12 sliding along the axes 14, 14 of bearing brackets 13, 13 on both sides. Therefore, both the sliding doors 3a and 3b, which are suspended from the rails 2a and 2b fixed to the support base 1 via the sliding door hanging tools 4a and 4b, close the entrance A by the stroke of the cylinders 5 and 5 while remaining closed.
is pushed outward.

When the sliding door is pushed out, as the movable support base 1 moves closer, the rotating arms 86a and 86b of both connecting means 8a and 8b connected to the fixed arms 15a and 15b near both ends of the base 1, respectively, The vertical axis 8 is centered around the vertical axes 81a and 81b of
In order to rotate toward the vehicle body wall B together with 1a and 81b, a universal joint 83 is attached to the vertical shafts 81a and 81b.
Oblique shafts 85a, 85 connected via a, 83b
b. A universal joint 84a is attached to the oblique shafts 85a, 85b.
a lower vertical shaft 82a connected via 84b;
82b, and the L-shaped arms 73a, 73b of the extrusion auxiliary means 7 fixed to the vertical shafts 82a, 82b.
is rotated by the same angle in the same direction as the arms 86a, 86b, and thereby the lower portions of both sliding doors 3a, 3b are also fitted into the respective guide grooves 31a, 31b.
Rollers 71a, 7 at the tips of mold arms 73a, 73b
1b, it is pushed outward by the above stroke.

In this way, both sliding doors 3a and 3b remain closed,
The whole is pushed outward from the doorway A by the stroke of the cylinders 5, 5, and the upper and lower edges of the sliding doors 3a, 3b and the edges on the door bottom side are the seal pads around the doorway A.
It is separated from the patch A ₁ without rubbing A ₁ .

When the sliding door pushing operation described above is completed, pressurized air is then supplied from the port 612 to the air cylinder 61 of the opening/closing driving means 6, and the piston rod 611 is pushed out in the opening direction of the sliding door 3b. By extruding the piston rod 611, a rack 62 is connected to the piston rod 611 via a connecting plate 64.
b is in the same direction as the piston rod 611 (sliding door 3b
The other rack 62a, which is connected to this rack 62b via the pinion 63, moves in the opposite direction (the opening direction of the sliding door 3a). Therefore, a connecting member 65 is attached to each rack 62a, 62b.
Sliding door hanging tools 4a and 4b connected via a and 65b
are the respective door wheels 41a, 42a, 43a, 44a
and 41b, 42b, 43b, 44b are rail 2
a and 2b, it moves in the opening direction of each of the sliding doors 3a and 3b, thereby opening both the sliding doors 3a and 3b along the outer surface of the vehicle body wall B by the stroke of the piston rod 611.
At this time, the lower part of the sliding doors 3a, 3b is
L-shaped arms 73a, 7 fitted into 1a, 31b
3b and rollers 72a, 72b for preventing contact with the sliding door, and maintain a constant distance parallel to the outer surface of the vehicle body wall B. When the sliding doors 3a, 3b are fully open, the arms 47a, 47b of the sliding door hangers 4a, 4b are located above the sliding doors 3a, 3b in the closed state of FIG. 1, respectively.

When closing the sliding doors 3a and 3b from this open state, when the opening/closing operation valve (not shown) is switched from open to closed, pressurized air is supplied to the air cylinder 61 of the second driving means 6 from the port 613,
Although exhaust is performed from the air cylinder 12, the air cylinders 5, 5 for extrusion and return continue to be supplied with air to the port 54, and the extrusion state is maintained. When the sliding doors 3a, 3b are kept in the pushed-out state, pressurized air is supplied to the port 613 of the air cylinder 61, and the piston rod 611 is retracted.
The sliding door 3b moves in the retracting direction of the piston rod 611 (that is, the closing direction of the sliding door 3b) by the stroke thereof, and the other rack 62a, the sliding door hanging tool 4a, and the sliding door are connected to the rack 62b via a pinion 63. 3a moves in the opposite direction (ie, in the closing direction of the sliding door 3a) by the same amount of stroke. When both sliding doors 3a, 3b are closed together in the pushed-out state, pressurized air is then supplied to the air cylinders 5, 5 through the port 55, and exhausted through the port 54 on the opposite side. Therefore, the air cylinders 5, 5 move in a direction away from the vehicle body wall B, whereby the movable support base 1, the sliding door hangers 4a, 4b, and the sliding doors 3a, 3b return to their original positions. At this time, along with the return of the movable support base 1, the L-shaped arms 73a, 73b of the auxiliary means 7 also rotate back via the connection means 8a, 8b, and the sliding door 3
Pull in the lower parts of a and 3b. Therefore both sliding doors 3
a and 3b are drawn into the doorway A while being closed to each other, and the upper and lower edges of the sliding doors 3a and 3b and the edge on the door bottom side are pressed against the sealing pad _A1 around the doorway A, and the door is closed as shown in FIG. Return to state.

As described above, the sliding door opening/closing device of this invention has a pair of rails 2a and 2b having a substantially C-shaped cross section.
are provided back to back, and a pair of sliding doors 3a,
An arm 47 protruding from the upper end of 3b in the door closing direction
a, 47b are attached, and the door wheels 41a, 42a, 43a, 44a provided on the arm 47a of one sliding door hanging tool 4a are attached to one rail 2a, and the sliding door hanging tool 4b of the other sliding door hanging tool 4b is attached. arm 47b
The door rollers 41b, 42b, 43b, and 44b provided on the two rails are each held on the other rail 2b so as to be freely runnable, and each of the door rollers is fitted and press-fitted into the upper groove portions 21a and 21b of the one rail 2a and the other rail 2b. door wheels 41a, 43a, 41b, 43b, and a door wheel 42 that fits and presses into the lower groove portions 22a, 22b.
a, 44a, 42b, 44b, even when the sliding doors 3a, 3b are fully opened to both sides of the entrance/exit A, the arms 47 of the sliding door hangers 4a, 4b
Since the rails 2a and 47b only move to the upper position of the sliding doors 3a and 3b in the closed state, and do not extend to either side of the doorway A, the length of each rail 2a and 2b is determined by adjusting the length of the doorway A. The width of the rail 1 can be made equal to or slightly shorter than the width of the entrance A, which is about twice the width of the entrance A, unlike the conventional equipment.
Compared to a device that requires 00, the device is extremely compact, and a large installation base is not required, and other remarkable effects are obtained. The effect is that it does not occur. In particular, when constructing a sliding door opening/closing device for a vehicle of the push-out opening/closing type as in the embodiment, space for a door bag, etc. is not required, and the movable support base 1 includes rails 2a, 2b, and air cylinders 5, 5 for pushing/returning. By attaching the opening/closing drive means 6, etc., the main parts of the device can be made into a unit, which simplifies the installation work of the device to the vehicle body.
Furthermore, since the pushing/returning and opening/closing operations of the sliding door are performed separately, the seal gasket around the entrance/exit A is
Additional effects such as eliminating wear of _A1 or poor airtightness when closing the door can be obtained.

It goes without saying that this invention is not limited to the vehicle sliding door opening/closing device of the embodiment, but is applicable to all sliding door opening/closing devices provided at general entrances and exits.

[Brief explanation of the drawing]

Fig. 1 is a front view of one embodiment of this invention, Fig. 2 is a plan view of the same embodiment, Fig. 3 is a sectional view taken along line A--A of Fig. 1, and Fig. 4 is a left side portion of the same embodiment. Front view, No. 5
The figure is a sectional view taken along the lo-harney-ho line in Figure 1, Figure 6 is a partially enlarged view of Figure 5, Figure 7 is a partially enlarged view of Figure 3, and Figure 8 is a movable structure with rails. FIG. 9 is an exploded partial perspective view showing the support base and the sliding door hanger, and FIG. 9 is a front view of the conventional example. 1...Movable support base, 2a, 2b...Rail, 21a, 21b...Upper groove, 22a, 2
2b...Lower groove part, 3a, 3b...Sliding door, 4
a, 4b...Sliding door hanger, 41a, 42a, 43
a, 44a, 41b, 42b, 43b, 44b...
...Door wheel, 47a, 47b...Arm, 5...Air cylinder, 6...Opening/closing drive means, 61...Air cylinder, 62a, 62b...Rack, 63...
...Pinion, 7a, 7b...Auxiliary means, 8a, 8
b...Connecting means, A...Entrance/exit, _A1 ...Seal packing, B...Vehicle body wall.

Claims (1)

[Scope of utility model registration request] A pair of rails having a substantially C-shaped cross section are provided back to back, and a sliding door hanger with an arm protruding in the door closing direction is attached to the upper end of each of the pair of sliding doors. The provided door roller is held on one rail, and the door roller provided on the arm of the other sliding door hanger is held on the other rail so that they can run freely.
The sliding door opening/closing device is characterized in that each of the door rollers is comprised of a door roller that fits and presses into the upper groove of one rail and the other rail, and a door roller that fits and presses into the lower groove of the other rail.