JPH0378468B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method of opening and closing the opening in the side wall of a vehicle through lifting and retracting movement of the door attached to the opening in the side wall of the vehicle and opening/closing movement of the door along the side wall of the vehicle. This invention relates to an automatic opening/closing device for vehicle sliding doors.

[Conventional technology]

The first prior art example of this type of device is disclosed in Japanese Patent Application Laid-open No. 85111/1983.
This includes a door 100 as shown schematically in FIG.
Guide rails 101 and 102 at the top and bottom of the
Arms 1 are provided at the upper and lower ends of a rotating shaft 120 vertically attached to the side column 110, respectively.
21 and 122 are fixed, and these arms 12
A roller 123 held at the free end of 1,122,
124 is engaged with the guide rails 101 and 102, and furthermore, the rotating shaft 12 is connected to the intermediate portion of the rotating shaft 120.
An entry/exit cylinder 130 for rotating the door 100 to bring out and draw the door 100 into the opening.
A retractable rod 131 is connected via an arm 132. When the door is opened, the retracting motion of the retracting rod 131 of the entry/exit cylinder 130 is converted into a rotational motion of the rotating shaft 120 by the action of the arm 132, and the arms 121, 122 rotate outward together with this rotating shaft 120. By door 1
00 is taken outside. On the other hand, when the door is closed, when the egress/egress rod 131 of the egress/egress cylinder 130 is pushed out, the door 100 is retracted into the interior by the opposite action described above. Note that when opening and closing the door 100 along the side wall of the vehicle, the door 100 is moved as described above.
Opening/closing cylinder 1 with 00 taken out
By moving the door 40 in and out, the door 100 is pushed and pulled, and the rollers 123 and 124 guide the upper and lower guide rails 101 and 102 to slide it.

A second conventional example of this type of device is disclosed in Japanese Utility Model Publication No. 57-58043. In this type of vehicle, the door is moved in and out and the door is opened and closed along a guide rail provided on the vehicle body. That is, as schematically shown in FIG.
A roller 210 provided on the vehicle body is configured to be guided by a guide rail 220 curved inward on the vehicle body at the door end side.

[Problem that the invention seeks to solve]

In the first type of device, as is well known, a sealing pad (not shown) is provided around the entire circumference of the opening.
is provided, and when the opening is fully closed, the door is pressed against this seal gasket to seal the door. Therefore, even in the device described in FIG. 1, a considerably large force is required to draw the door 100 into the interior. However, in the case shown in FIG.
20 to the door 100 by arms 121, 122
In order to meet the above requirements, it is necessary to increase the diameter of the rotating shaft 120 to provide high torsional strength. However, the arms 121 and 122 above and below the rotating shaft 120 and the motion converting arm 132 must be made thicker to provide greater strength, which poses a problem in that the weight of the device increases. Further, since the rotating shaft 120 needs to be disposed over almost the entire height of the door 100, there is a problem in that it is necessary to secure a mounting space for it on the vehicle body side and to ensure a high mounting state. Furthermore, in order to smoothly open and close the door 100, the upper and lower arms 121, 122
It was necessary to adjust the mounting angles between the two, and there was a problem in that the work was troublesome.

Further, in the second device, the door 200
The lifting and retracting movement is performed by moving one of a pair of arms 231 and 232 fixed to a vertically provided shaft 230 to the retracting rod 2 of the retracting cylinder 240.
41 and the other side is engaged with a guide rail 250 provided on the door 200, and the entrance/exit cylinder 240
This is achieved by converting the linear movement of the egress/retraction rod 241 into a rotational movement by the shaft 230 and arms 231, 232 and transmitting the rotational movement to the door 200. Since this transmission system is similar to that described in FIG. 1, it is clear that the system in FIG. 2 also has the same problems as described above. Furthermore, to open and close the door 200, the door 200 is pushed and pulled by moving the extension rod 261 of the opening/closing cylinder 260 connected to the door tip 201 of the door 200, and at this time, only the door tip 201 is moved by the roller. Since the door opening operation is performed by being guided by the guide rail 220 via the guide rail 210, the door 200 is first brought up to the position indicated by the imaginary line in the figure by the entrance/exit cylinder 240, and then the opening operation is performed by the opening/closing cylinder 260. need to be done. That is, when the entrance/exit cylinder 240 and the opening/closing cylinder 260 are operated simultaneously, the door 200 is not guided at the door end 202 but only guided at the door tip 201. door 2
There is a wobble in the operation of the 00, and the lower part of the door 202
This is because it may come into contact with the vehicle body. Therefore, in the one shown in FIG. 2, it is necessary to establish an orderly operation sequence of the in/out cylinder 240 and the opening/closing cylinder 260, resulting in a problem that the operation circuit becomes complicated.

[Means for solving problems]

This invention has been developed in consideration of the above-mentioned circumstances, and a specific technical means for solving the above-mentioned problems is a vehicle sliding door that automatically opens and closes by using a door provided in an opening in a vehicle side wall as a sliding door. In the automatic opening/closing device, a sliding body is provided in the upper vehicle body located above the door tip and door bottom of the door so as to move in a direction horizontal to the vehicle body and at a predetermined inclination angle with respect to the vehicle side wall surface. , an upper guide rail suspended from the two sliding bodies in parallel to the opening/closing direction of the door and having a length spanning the opening/closing movement path of the door tip and tail portion of the door; and an upper guide rail that is guided by the upper guide rail. a sliding piece that moves while moving and is connected to the upper part of the door via a connecting plate, and a vehicle body that engages with the sliding piece only in the opening/closing direction of the door and pushes and pulls the sliding piece in the opening/closing direction. an opening/closing cylinder provided on the vehicle body at a position of a door tail portion of the door that engages with the door only in a direction perpendicular to the opening/closing direction and pushes and pulls the door in and out; It consists of a guide roller provided below the door tip and the door bottom, and a guide rail that guides the guide roller and has a curved portion on the door tip side that is inclined in the same direction as the sliding body. .

〔Example〕

The present invention will be explained below with reference to the illustrated embodiments.

In the automatic sliding door opening/closing device for a vehicle illustrated in FIG. 3, a first guide mechanism 3 is provided on the upper vehicle body 2 of the door tail portion 11 of the door 1. As shown in FIG. The first guide mechanism 3 is configured by fitting a sliding body 33 such as a slide bearing to a guide shaft 32 installed between a pair of brackets 31, 31 fixed to the upper vehicle body 2, and shown in the illustrated example. Guide shaft 32
is installed at an angle of 45 degrees to the vehicle side wall surface. The second guide mechanism 4 is held on the sliding body 33 via an L-shaped bracket 34. As clearly shown in FIG. 6, the second guide mechanism 4 consists of a horizontal upper guide rail 41 and a sliding piece 42 such as a slide bearing that can slide freely along the upper guide rail 41. , is attached to the connecting plate 13 fixed to the upper part of the door tip 12 of the door 1 via its frame 42a. In the illustrated example, as clearly shown in FIG. 3, a pair of sliding pieces 42 are provided at a predetermined interval, and these sliding pieces 42, 42 are connected by a common frame 42a. In addition, as clearly shown in FIGS. 3 and 4, the upper body 2 of the door tip 12 of the door 1
A first guide mechanism 3 similar to that described above is also provided, and an upper guide rail 41 of a second guide mechanism 4 is attached to the sliding body 33 via an L-shaped bracket 34. Here, as is clear from FIG. 4, the guide rail 41 has a length that spans the entire opening/closing movement path of the door tip 12 and the door bottom 11 of the door 1.

Next, as shown in FIG.
1 is configured to be moved in and out in the opening/closing direction of the door 1 (arrow A in FIG. 4). As clearly shown in FIGS. 4 and 6, a guide roller 53 that rolls around a vertical axis is supported by the end fitting 52, while a guide roller 53 that is fixed to the frame 42a and extends The opening/closing cylinder 5 is attached to the tip of the connecting plate 61 provided.
A guide rail 6 is provided which is engaged with the guide roller 53 only in the pushing and pulling direction.

On the other hand, as clearly shown in Figures 3 and 4, door 1
An entry/exit cylinder 7 is provided on the vehicle body (not shown) near the door end 11. The retractable rod 71 of the retractable cylinder 7 is designed to be moved in and out in a direction perpendicular to the pushing and pulling direction by the opening/closing cylinder 5, and its end fitting 72 has a guide that rolls around a vertical axis. A roller 73 is supported. On the other hand, a recessed guide groove 14 is provided in the upper part of the door 1, and the guide roller 73 is inserted into this guide groove 14 only in the pushing and pulling direction of the entrance/exit cylinder 7, as shown in FIG. They are fitted in such a way that they engage.

Next, as clearly shown in FIG. 3, a lower guide rail 81 is provided horizontally on the lower body (not shown) of the door tail 11 of the door 1, and this guide rail 81 is attached to the door tail 11 of the door 1. A guide roller 83 is fitted into the lower end of the roller 11 via a bracket 82 and is rotatably supported around a vertical axis. As clearly shown in FIG. 5, this lower guide rail 81 is curved toward the inside of the vehicle body when the door is in the closed position. Further, a similar guide rail 81 is also provided on the lower body (not shown) of the door tip portion 12 of the door 1, and a guide roller 83 is fitted into this lower guide rail 81 in the same manner as described above. Here, lower guide rail 8
1 is set parallel to the guide shaft 32 of the first guide mechanism 3 described, and the straight part is set parallel to the upper guide rail 41 of the second guide mechanism 4 described. Therefore, the curved portion of this lower guide rail 81 and the guide roller 83
The guide mechanism constituted by the straight portion and the guide roller 83 is referred to as a third guide mechanism 8, and the guide mechanism constituted by the straight portion and the guide roller 83 is referred to as a fourth guide mechanism 9.
, these correspond to the first guide mechanism 3 and the second guide mechanism 4 described above.

4 and 6, reference numeral 10 indicates a side wall of the vehicle, reference numeral 10a indicates an opening, and reference numeral 10b indicates a seal gasket disposed around the opening 10a.

Next, the operation of this device having the above configuration will be explained.

When the door 1 is brought out of the opening 10a from the closed state shown in solid lines in FIGS. 3 to 6, the third
Opening/closing cylinder 5 shown in FIGS. 4 and 6
At the same time, air is supplied to the side opposite to the rod of the inlet/outlet cylinder 7, thereby causing both the inlet/outlet rod 51 of the opening/closing cylinder 5 and the inlet/outlet rod 71 of the inlet/outlet cylinder 7 to protrude in directions perpendicular to each other. In this way, the pushing force from the opening/closing cylinder 5 is applied to the door 1 by the guide roller 53, guide rail 6, connecting plate 61, and frame 42.
a and the connecting plate 13, and at the same time, the pushing force by the in/out cylinder 7 is transmitted to the guide roller 73.
and is transmitted via the guide groove 14. On the other hand,
The direction in which the door 1 is taken out is from the door end 11 of the door 1.
Since the first and third guide mechanisms 3 and 8 provided in the upper and lower parts of the vehicle body and the upper and lower parts of the door tip 12 are regulated in the 45 direction with respect to the vehicle side wall surface, these The extrusion speed of the opening/closing cylinder 5 and the inlet/outlet cylinder 7 are controlled by the first and third guide mechanisms 3 and 8.
extrusion speeds are synchronized. Therefore, door 1 is
As shown by the imaginary line A in the figure and FIG. will be moved to. In this case, since the upper and lower portions of the door tail portion 11 and the upper and lower portions of the door tip portion 12 are guided by the first and third guide mechanisms 3 and 8, the door 1 is moved without rattling. It is carried out smoothly without any problems. After this, the pushing force of the opening/closing cylinder 5 is transmitted to the pair of sliding pieces 42 of the second guide mechanism 4 via the guide roller 53, guide rail 6, connecting plate 61, and frame 42a, so that the sliding piece 42 By sliding within the upper guide rail 41, the door 1 is opened to the position shown by the imaginary line A' in FIGS. 4 and 5, and the opening 10a is opened.
is fully opened. In this case as well, the upper portions of the door end portion 11 and the door tip portion 12 of the door 1 are guided by the second guide mechanism 4 consisting of the upper guide rail 41 and a pair of sliding pieces 42, 42, and Each lower part of the door 1 is guided by a fourth guide mechanism 9 consisting of a lower guide rail 81 and a guide roller 83, so that the door 1 can be opened smoothly without rattling. In addition, since the opening/closing cylinder 5 is continuously pushed out when the door 1 is taken out and when it is opened,
After door 1 is taken out, it continues to be opened.

Next, when the door is closed, from the fully open state, air is first supplied to the rod side of the opening/closing cylinder 5 to pull in the retracting rod 51, and the retracting force moves the door 1 to its extended position (Fig. 4, imaginary). Open to line A). In this case, the second and fourth guide mechanisms 4 and 9 help in smooth closing movement. Then, when the door 1 closes to the take-out position, a predetermined limit switch (not shown) is activated, and the access cylinder 7
Start supplying air to the rod side and move it in and out of the rod 7.
1 retraction opening/closing cylinder 5 egress/extraction rod 51
At the same time as the withdrawal of In this way, the retracting speed of the retracting cylinder 7 and the retracting speed of the opening/closing cylinder 5 are synchronized by the synchronized action of the first and third guide mechanisms 3 and 8, and the retracting speed of the opening/closing cylinder 5 is synchronized by the retracting speed of the opening and closing cylinder 5. The door 1 is pulled in and pressed against the seal packing 10b as shown in FIGS. 4 and 6.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, even if the opening/closing cylinder and the entrance/exit cylinder are operated simultaneously when the door is taken out and pulled in, the sliding body provided at the top and bottom of the door does not move. Therefore, the upper part of the door is guided to the outside of the opening, and the lower part of the door is also guided by the guide rollers provided below the tip and bottom of the door by the lower guide rail and its curved part, so that the lower part of the door is guided in the same direction. Since the door is guided, the door can be pulled out and moved smoothly without rattling. Therefore, there is no need to ensure an operation sequence for separately operating both cylinders when pulling out and drawing, and the operation circuit is simplified. Further, due to the two sliding bodies and the curved portion of the lower guide rail, there is an advantage that even if the entry/exit cylinder is provided only at the door end side, the door end side can be pushed and pulled in the thickness direction of the door at the same time. In addition, the opening/closing cylinder connected to the door is pushed and pulled in the door opening/closing direction, and the entrance/exit cylinder is engaged in the door direction only in the pushing/pull direction perpendicular to the opening/closing direction. ,
When the door is pulled out or pulled in, the force is transmitted directly from the two cylinders to the door, eliminating the need to use the shaft or arm as in the past, so there is no need to take measures to strengthen them. hand,
Not only is the weight of the device reduced, but there is no need to adjust the mounting angle between the arms, making it easier to manufacture.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a conventional device, Fig. 2 is a schematic plan view of another conventional device, Fig. 3 is a front view showing an embodiment of the device of the present invention, Fig. 4 is the same plan view, and Fig. 5 is a sectional view taken along the line X-X in Fig. 3, and Fig. 6 is a cross-sectional view taken along the line
It is an enlarged sectional view along the YY line of a figure. DESCRIPTION OF SYMBOLS 1... Door, 2... Upper vehicle body, 5... Opening/closing cylinder, 7... Entry/exit cylinder, 10... Vehicle side wall, 1
0a... opening, 11... door bottom, 12... door tip, 13... connecting plate, 33... sliding body, 41...
Upper guide rail, 42...Sliding piece, 81...Lower guide rail.

Claims (1)

[Scope of Claims] 1. An automatic sliding door opening/closing device for a vehicle that automatically opens and closes a door provided at an opening in a vehicle side wall as a sliding door, comprising: an upper vehicle body located above a door tip and a door bottom of the door; a sliding body provided to move horizontally with the vehicle body and at a predetermined angle of inclination with respect to the vehicle side wall surface; an upper guide rail having a length that spans the opening/closing movement path of the upper part and the door bottom; a sliding piece that moves while being guided by the upper guide rail and is connected to the upper part of the door via a connecting plate; an opening/closing cylinder provided on the vehicle body that engages with the sliding piece only in the opening/closing direction of the door and pushes and pulls the sliding piece in the opening/closing direction; an entry/exit cylinder provided on the vehicle body at the position of the door end of the door that pushes and pulls the door in and out; a guide roller provided below the door end and the door bottom of the door; and a guide roller that guides the guide roller. An automatic sliding door opening/closing device for a vehicle, comprising: a lower guide rail having a curved portion inclined in the same direction as the sliding body on the door end side.