JPH0227509B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel sliding door opening/closing device for a vehicle.

Recently, in order to eliminate the door pocket and use the interior space more widely and more effectively, a type of sliding door that opens and closes along the outer surface of the car body wall while pushing it outward from the vehicle entrance (hereinafter referred to as the push-open/close type for convenience) has been introduced. Sliding door opening/closing devices for vehicles have been developed.

By the way, conventional push-out type sliding door opening/closing devices generally employ rotating push-out arms, curved guide rails, or a combination of these as means for pushing out the sliding door. In most of these devices, when opening a sliding door, the pushing action and opening action of the sliding door are performed simultaneously, and the sliding door is opened by the combined action of both. When closing the sliding door, the sliding door is closed by a combined action of a closing action and a retracting action. However, as mentioned above, in the case of conventional opening/closing devices in which the pushing and retracting operations of the sliding door are not separated from the opening/closing operations, when the sliding door begins to open and closes, the seal pads on the upper, lower, left, and right edges of the vehicle entrance That is, the gasket, which maintains the airtightness of the passenger compartment by being in pressure contact with the sliding door in the closed state, is rubbed by the sliding door in the direction of the combined movement, so it has the disadvantage that it wears out in a relatively short period of time. The sealing gasket is easily deformed by the sliding door in the direction of the combined movement when the sliding door is fully closed, and tends to cause poor pressure contact with the sliding door, so that it is difficult to obtain a satisfactory airtightness.

In addition, all of the above-mentioned conventional devices are assembled on the spot by individually attaching rotating push-out arms, guide rails, other component parts, and drive means to the vehicle body, so various types of devices can be attached to the vehicle body. This also has the disadvantage that it takes a considerable amount of time to assemble the device, since this process is quite troublesome.

This invention was made to solve the above-mentioned drawbacks, and is configured so that the pushing and retracting operations of the sliding door are performed separately from the opening and closing operations, and the main components of the device are attached to a support base. The main parts of the device are integrated, and the pushing and retracting operations and opening/closing operations of the lower part of the sliding door can be performed well without installing a guide rail on the floor of the car body, and the airtightness between the lower part of the sliding door and the car body wall can be maintained. It is an object of the present invention to provide a sliding door opening/closing device for a vehicle that can be held securely.

Hereinafter, the present invention will be described in detail based on drawings showing embodiments.

In FIG. 1, reference numeral 1 denotes a movable support base that serves as a base for mounting and integrating the main components, and this movable support base 1 has an I-type structure as shown in FIGS. 6, 8, etc. It consists of a metal profile with a cross section. Slide bearings 1 are attached to both ends of the movable support base 1 via L-shaped fittings 11, 11.
2, 12 are provided, and these slide bearings 12, 12 are connected to the shafts of bearing brackets 13, 13 which protrude inwardly from the vehicle body wall B on both sides above the entrance/exit A, as shown in FIGS. 1 and 2. 14, 14 so as to be slidable. Thus, the movable member 1 is attached to the inside of the vehicle body wall B along the upper edge of the entrance A, and can freely approach and return to the vehicle body wall B.

On both sides of the movable support base 1, as shown in FIG.
As shown in FIGS. 6 and 8, a pair of rails 2a and 2b each having a substantially C-shaped cross section are fixed back to back. As shown in FIGS. 1 and 8, one rail 2a is connected to a sliding door hanger 4 of one sliding door 3a.
Four rotatable door wheels 41a, 42 provided in a
a, 43a, 44a, and hold the other rail 2b.
are four rotatable door wheels 41b, 42b, 43b, 44b provided on the sliding door hanger 4b of the other sliding door 3b.
is held. Door wheels 41a, 42a, 43a,
44a, as shown in FIG.
a, 46a, two boards each are arranged diagonally and pivoted, and these boards 45a, 46a are attached to the rail 2a.
It is bolted to an arm plate 47a of the sliding door hanging tool 4a that extends along the sliding door hanging tool 4a. Bolt insertion holes 471a, 472a, 473 formed in the arm plate 47a
Both a and 474a are elongated holes that are vertically long, and by finely adjusting the mounting positions of the boards 45a and 46a, the door wheels 41a and 43 located diagonally upward can be adjusted.
The door rollers 42a and 44 are positioned diagonally below so that a is fitted into and press-contacted with the upper groove portion 21a of the rail 2a.
The sliding door hanger 4a can be attached while adjusting each part so that the part a fits and presses into the lower groove part 22a of the rail 2a.
Door wheel 4 that rolls and travels in the upper groove part 21a of a
1a, 43a and the door rollers 42a, 44a that roll and travel in the lower groove portion 22a, it is possible to move along the rail 2a without causing rattling.

The other door wheel 41b, 42b, 43b, 44b
is also attached to the arm plate 47b of the other sliding door hanger 4b via the substrates 45b, 46b in exactly the same manner as above, the door wheels 41b, 43b are attached to the upper groove portion 21b of the other rail 2b, and the door rollers 42b, 44b are attached to the lower side. It runs by rolling in the side grooves.

Sliding door hanger 4a attached to one sliding door 3a
As shown in FIG. 8, it consists of an arm plate 47a provided with the door roller described above, and an L-shaped hanging main body 48a bolted near one end of the arm plate 47a. Vertical piece 481a of 48a
is said to be a hinge that can bend freely in the middle. A mounting seat plate 483a is integrally formed at the tip of the horizontal piece 482a of this hanging main body 48a.
This mounting seat plate 483a is attached to the sliding door 3a as shown in FIG.
By bolting it to the top corner of the door,
The sliding door 3a is suspended. For this reason, the arm plate 47a of the sliding door hanger 4a is largely deviated toward the opposite sliding door 3b, as shown in FIG. It is adapted to move along the sliding door 3a to a position above the sliding door 3a when it is fully closed. Therefore, rail 2a
As shown in FIG. 1, it is sufficient that the movable support base 1 is slightly shorter than the upper edge of the entrance A, and the movable support base 1 to which the rail 2a is attached may be slightly longer than the upper edge of the entrance A. It is. Moreover, since the vertical piece 481a of the hanging tool main body 48a is bendable in the middle, even if the sliding door 3a rotates in the front-rear direction (in/out direction), this is absorbed by the vertical piece 481a and the arm plate 47a and door wheel are rotated. 41a, 42a,
43a, 44a, there is no distortion or rattling in these arm plates, door wheels, rails 2a, etc.

Note that the sliding door hanging tool 4b of the other sliding door 3b has substantially the same configuration as above, and the L-shaped hanging tool main body 48b is designed so that both sliding doors 3a and 3b can be closed together without creating a step. The horizontal piece 482b is shortened, and the arm plate 47b is on the opposite side of the sliding door 3.
The only difference is that the displacement is greater toward point a.

In addition, the L-shaped metal fittings 1 at both ends of the movable support base 1
1 and 11, as shown in FIGS. 1 and 2,
A pair of air cylinders 5, 5 are attached as first driving means for moving the movable support base 1 close to and returning to the vehicle body wall B to push the sliding doors 3a, 3b outward from the entrance A and return them. There is. Both air cylinders 5, 5 are oriented perpendicularly to the vehicle body wall B, and as shown in FIG.
2 with a pin 53. When pressurized air is supplied into the cylinder 5 from the port 54 on the car body wall side of the air cylinder 5, the piston rod 51 is drawn into the cylinder 5, so that the cylinder 5 is relatively close to the car body wall B. Due to this movement, the movable support base 1, which is integral with the cylinder 5, also moves toward the vehicle body wall B. When pressurized air is supplied to the port 55 on the opposite side in this approach state, the piston rod 51 protrudes and the cylinder 5 and movable support base 1 return to their original positions. When the movable support base 1 approaches and returns to the vehicle body wall B in this way, the sliding door hanger 4
The rail 2 of the movable support base 1 via a and 4b
Sliding doors 3a and 3b suspended from a and 2b are
Needless to say, it is pushed out of the entrance/exit A and returns to its original position.

Furthermore, a second driving means 6 is provided on the upper surface of the movable support base 1 for opening and closing the sliding doors 3a, 3b along the outer surface of the vehicle body wall B in a pushed-out state. As shown in FIGS. 1 and 2, the second driving means 6 includes an air cylinder 61 having a piston rod 611 with a long stroke sufficient to open and close the sliding door, two racks 62a and 62b, and a rack 62.
a, 62b, and one rack 62b is connected to the connecting plate 6.
It is connected and fixed to the piston rod 611 via the piston rod 611. The other rack 62a is the same as the rack 62a.
When b moves together with the piston rod 611, the pinion 63 causes it to move in the opposite direction to the rack 62b. These racks 62a and 62b are connected to sliding door hangers 4a and 4, respectively.
The rack 62a and the arm plate 47a are arranged in parallel above the arm plates 47a and 47b of
The other rack 62b and arm plate 47b are connected and fixed via connecting members 65a and 65b, respectively. Therefore, when the sliding doors 3a and 3b are pushed out from the entrance A, the air cylinder 61
When pressurized air is supplied from one port of the piston rod 613 and exhausted from the other port 613 to push out the piston rod 611, the piston rod 61
One rack 62b connected to 1, sliding door hanger 4b
The sliding door 3b moves in the pushing direction of the rod 611 (to the left in FIG. 1), and at the same time the pinion 63
The other rack 62a, sliding door hanger 4a, and sliding door 3a move in the opposite direction (to the right in FIG. 1) through the
a and 3b are opened left and right along the outer surface of the vehicle body wall B. When the door is opened, pressurized air is supplied from the port 613 of the air cylinder 61 and exhausted from the opposite port 612, and when the piston rod 611 is retracted, both racks 62a, 62b, sliding door hangers 4a, 4b Both the sliding doors 3a and 3b move in the opposite direction to the above, thereby closing the sliding doors 3a and 3b.

In addition, sliding doors 3a and 3b are provided on both sides of the lower end of entrance A.
A pair of auxiliary means 7a, 7 for assisting the extrusion and return of
b is arranged, and the auxiliary means 7a, 7b are
A pair of connecting means 8 provided on both sides of the entrance/exit A
It is configured to interlock with the movable support base 1 via a and 8b.

That is, the auxiliary means 7a has two rotatable rollers 71 at the tips, as shown in FIGS. 1 and 7.
a, 72a, this arm 73a is fixed at right angles to the rotatable vertical shaft 82a of the connecting means 8a, and one roller 71a is connected to the guide groove at the bottom of the sliding door 3a. 31a. Connecting means 8 for interlocking this auxiliary means 7a with the movable support base 1
a is an upper and lower vertical shaft 81 rotatably supported;
a, 82a, an oblique shaft 85a whose both ends are connected to the vertical shafts 81a, 82a via universal joints 83a, 84a, and an arm 86a fixed at right angles to the upper end of the upper vertical shaft 81a. As shown in FIGS. 2 and 4, this arm 86a is
A pair of fixed arms 15a, 1 fixed to the lower surface of both ends of the movable support base 1 and protruding toward the vehicle body wall B.
The distal end portion is connected to one of the fixed arms 15a of 5b by a pin 87a. The pin insertion hole of the fixed arm 15a is a normal round hole, but the pin insertion hole of the arm 86a is an elongated hole into which the pin can slide. , arm 86a
can rotate toward the vehicle body wall B about the vertical axis 81a together with the vertical axis 81a.
When the arm 86a rotates in this way, the upper vertical shaft 81a, the oblique shaft 85a, and the lower vertical shaft 82a rotate in the same direction, so that the L-shaped arm 73a fixed to the lower vertical shaft 82a It rotates by the same angle in the same direction as the arm 86a to reach the position shown by the dashed line in FIG. 7, thereby pushing the sliding door 3a out of the entrance A. In this pushed-out state, when opening and closing the sliding door 3a as described above,
Since the side plate 311a extending in the opening/closing direction in front of the guide groove 31a of the sliding door 3a is held from both sides by two rollers 71a and 72a located diagonally to each other, the door end of the sliding door 3a is attached to the vehicle body wall B. The roller 72a always moves towards the roller 72a and never comes into contact with it.
The sliding doors 3a are opened and closed parallel to the vehicle body wall B at intervals approximately equal to the diameter of the vehicle body wall B.

The auxiliary means 7b for pushing out the other sliding door 3b and its connecting means 8b are constructed in exactly the same way as above, so the same parts are designated by the same numbers with "b" added at the end in the figures. It will only be displayed and its explanation will be 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 and the edge on the door end side are configured so as to come into pressure contact with a seal packing A ₁ (see FIGS. 2, 3, and 5) at the periphery of the doorway A.

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. 1, one port 6 is connected to the air cylinder 61 of the second drive means 6.
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. Since pressurized air is supplied from 55, 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, which are the first driving means, from the port 54 on the opposite side. and the second
The air cylinder 61 of the driving means remains in the same state. In this way, the air cylinders 5, 5
When pressurized air is supplied from the port 54 to the cylinders 5, 5, the cylinders 5, 5 move toward the car body wall B by a stroke distance, and the movable support base 1, which is in a fixed relationship with the cylinders 5, 5, also moves towards the bearing brackets on both sides. 13,
It is guided by slide bearings 12, 12 sliding along the shafts 14, 14 of 13, and moves linearly toward the vehicle body wall B. Therefore, the support base 1
sliding door hanging tools 4a, 4 from rails 2a, 2b fixed to
Both sliding doors 3a and 3b suspended via b,
It is pushed out of the entrance/exit A by the stroke of the cylinders 5, 5 while remaining closed.

When the sliding door is pushed out, as the movable support base 1 moves closer, the 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, move toward each other. The vertical axis 81 is centered around the vertical axes 81a and 81b.
Since it rotates toward the car body wall B together with a and 81b,
Universal joints 83a, 8 are attached to the vertical shafts 81a, 81b.
Oblique shafts 85a, 85b connected via 3b, and universal joints 84a, 84b connected to the oblique shafts 86a, 85b.
lower vertical shafts 82a, 82 connected via
b, and the L-shaped arms 73a, 73b of the push-out auxiliary means 7 fixed to the vertical shafts 82a, 82b are rotated by the same angle in the same direction as the arms 86a, 86b, thereby opening both sliding doors 3a, 3b. The lower part of the rollers 71a, 71b at the tips of the L-shaped arms 73a, 73b are fitted into the respective guide grooves 31a, 31b.
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 to the air cylinder 61 of the second driving means 6 from the port 612, 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 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, which are the first driving means, continue to be supplied with air to the port 54, and maintain the extrusion state. 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.
b and the sliding door 3b move in the retraction direction of the piston rod 611 (that is, the closing direction of the sliding door 3b) by the stroke thereof, and the pinion 63 is attached to the rack 62b.
The other rack 62a, the sliding door hanger 4a, and the sliding door 3a are connected in the opposite direction (i.e., the sliding door 3b
(in the door closing direction) 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. For this reason,
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 movement of the movable support base 1, the L-shaped arms 73a, 7 of the auxiliary means 7
3b also rotates back via the connecting means 8a, 8b, and draws in the lower portions of the sliding doors 3a, 3b. Therefore, both sliding doors 3a and 3b are drawn into the entrance A while being closed to each other, and the upper and lower edges and the edge of the door bottom side of the sliding doors 3a and 3b are pressed against the seal packing _A1 on the periphery of the entrance A, Return to the closed door state shown in Figure 1.

As can be understood from the above description, the sliding door opening/closing device of the present invention has a movable support base 1 attached to the vehicle body wall B above the entrance A so that it can approach and return freely, and the door wheels of the sliding door hanging tools 4a and 4b run on the movable support base 1. Rails 2a, 2 that freely hold and suspend the sliding doors 3a, 3b
b, and air cylinders 5, 5 serving as first driving means for moving the movable support base 1 toward and returning to push out and return the sliding doors 3a, 3b to the outside of the entrance/exit A.
and a second driving means 6 which opens and closes the sliding doors 3a, 3b along the outer surface of the vehicle body wall B in an extruded state, and is integrated with the movable support base 1 via the connecting means 8a, 8b. The lower part of the sliding door 3a, 3b is auxiliary pushed out and returned to the outside of the entrance/exit A, and when the sliding door 3a, 3b is opened/closed along the outer surface of the vehicle body wall B, it guides the movement of the lower part of the sliding door 3a, 3b in the opening/closing direction. By providing the auxiliary means 7a, 7b, the pushing operation and return operation (retracting operation) of the sliding doors 3a, 3b are performed separately from the opening/closing operation. At the end of the process, unlike conventional devices, the seal gasket around the entrance and exit is rubbed in the direction of the combined movement of the sliding door and wears out in a relatively short period of time, or the seal gasket is deformed in the direction of the combined movement and the sliding door is damaged. This can sufficiently eliminate the drawbacks such as poor airtightness due to poor pressure contact with the pipe. Furthermore, the main components such as the rails 2a, 2b, the air cylinders 5, 5 as the first drive means, the second drive means 6, etc. are integrally provided on the movable support base 1, so that the main parts of the device are made into a unit.
Assembling the main parts of the device can be completed simply by attaching the movable support base 1, so it takes less time to assemble the device than with conventional devices, which attach each component individually to the vehicle body and assemble the device. The time required can be greatly reduced and work can be done extremely efficiently. Further, the auxiliary means 7a, 7b include L-shaped arms 73a, 73b that are held on both sides of the lower end of the entrance A and rotate as the movable support base 1 moves, and sliding doors 3a, 3b.
Side plates 311a, 311b extending in the opening/closing direction of the lower part
The L-shaped arms 73a, 73b sandwich the
rollers 71a, 72a, 71b attached to
72b, the pushing out and returning operations of the lower portions of the sliding doors 3a, 3b and the opening/closing operations along the outer surface of the vehicle body wall B can be performed satisfactorily without the need for separately installing guide rails, and the sliding doors 3a, 3b are When the movable support base 1 returns to the fully closed state, the L-shaped arms 73a, 73b also rotate accordingly, and the rollers 71a, 72a, 71b, 7
2b, the lower portions of the sliding doors 3a, 3b are pressed against the seal gaskets _A1 , _A1 around the entrance/exit A, thereby maintaining airtightness. Also, as in the example,
The rails 2a and 2b are attached back to back to the movable support base 1, and the arm plate 47a of one sliding door hanging tool 4a provided with a door roller is positioned above the other sliding door 3b, and the sliding door hanging tool on the opposite side is When the arm plate 47b of the sliding door 4b is positioned above the sliding door 3a and the door wheels of the respective sliding door hanging tools 4a, 4b are held on the rails 2a, 2b, the rails 2a, 2
It becomes possible to greatly shorten the lengths of the movable support base 1 and the movable support base 1, which has the advantage of reducing the size of the device and saving materials.

As described above, the vehicle sliding door opening/closing device of the present invention has remarkable effects and is extremely useful.

[Brief explanation of drawings]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a plan view of the embodiment, Fig. 3 is a sectional view taken along the line A--I of Fig. 1, and Fig. 4 is a left side portion of the 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. It is an exploded partial perspective view showing a support base and a sliding door hanger. 1...Movable support base, 2a, 2b...Rail, 3a, 3b...Sliding door, 4a, 4b...Sliding door hanger, 41a, 42a, 43a, 44a, 41b,
42b, 43b, 44b... door roller, 5... air cylinder (first drive means), 6... second drive means,
61... Air cylinder, 62a, 62b... Rack, 63... Pinion, 7a, 7b... Auxiliary means, 8a, 8b... Connection means, A... Entrance/exit,
A ₁ ...Seal packing, B...Vehicle wall, 71a,
71b, 72a, 72b...Roller, 73a, 7
3b...Arm (L-shaped arm), 311a, 31
1b...Side plate.

Claims (1)

[Claims] 1 A movable support base that is attached to the vehicle body wall above the entrance so that it can approach and return freely, and a rail that suspends the sliding door by movably holding the door roller of the sliding door suspension tool and the movable support base that approaches and returns. A first drive means for pushing the sliding door outward from the entrance and returning it, and a second drive means for opening and closing the sliding door along the outer surface of the vehicle body wall in the pushed state are integrally provided. An auxiliary means is provided for interlocking the movable support base to auxiliarily push out and return the lower part of the sliding door, and to guide the movement of the lower part of the sliding door in the opening and closing direction when opening and closing the sliding door along the outer surface of the vehicle body wall. an arm that is held at the lower end side of the doorway and rotates as the movable support base approaches and returns to the vehicle body wall; A vehicle sliding door opening/closing device comprising two rollers.