JPH06336879A - Control device for automatic door device of vehicle - Google Patents

Abstract

PURPOSE:To open or close a sliding door with no delay without applying an impact to a car body when the sliding door is opened or closed, without giving uneasiness to passengers, and without affecting the operation of a vehicle. CONSTITUTION:A cylinder 34 made of a nonmagnetic substance is fixed in a shutter box, and a magnetic piston 36 is slidably inserted into the cylinder 34. A magnetic slider 37 is slidably inserted into the cylinder 34, and it is attracted to the piston 36 by the magnetic force of the piston 36 via the cylinder 34. An air circuit means 38 feeds or discharges the compressed air to or from the cylinder 34, and the slider 37 connected to a sliding door by a connecting means is reciprocated along the cylinder 34 together with the piston 36. A control circuit 61 squeezes the compressed air quantity fed or discharged to or from the cylinder 34 by the air circuit means 38 based on the detected output of a sensor 58 detecting the position of the sliding door, and the moving speed of the sliding door is reduced for the prescribed distance before the sliding door is completely closed or for the prescribed distance before the sliding door is completely opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for controlling an automatic door device for passengers to get in and out of a vehicle, in particular, a bus or a railroad vehicle.

[0002]

2. Description of the Related Art The applicants of the present invention have a passenger doorway substantially at the center of the side surface of a vehicle, and a sliding door movably provided in the width direction of the doorway closes the passenger doorway so that the passenger doorway can be opened. A door pocket is provided along the inner surface of the adjacent car body wall, the sliding door is housed inside the door pocket when the passenger doorway is opened, and the driving means is configured to drive the sliding door. I applied for a patent. The drive means of this device includes a cylinder fixed in the door pocket extending in the width direction of the sliding door, a piston slidably inserted in the cylinder,
The cylinder is provided with a slider slidably fitted therein, an air circuit means for supplying and discharging compressed air to the cylinder, and a coupling means for coupling the slider and the sliding door. The cylinder is formed of a non-magnetic material, and the piston and slider have magnetic force.
The slider is attracted to the piston via the cylinder by the magnetic force of the piston and the slider, and the air circuit means supplies and discharges compressed air to the cylinder to reciprocate the slider attracted to the piston along the cylinder.

In this automatic door apparatus, when the passenger door is opened, when the compressed air is supplied to and discharged from the cylinder by the air circuit means to move the piston, the sliding door moves in the same direction as the piston through the connecting means and the slider. After moving, the sliding door is housed in the door pocket and the passenger doorway is opened.
When closing the passenger entrance / exit, the compressed air is supplied to / removed from the cylinder by the air circuit means and the piston is moved in the direction opposite to the above, and the sliding door moves in the same direction as the piston. , Passenger doors are now closed.

[0004]

However, in the above automatic door device, since the moving speed of the sliding door is not specially controlled and this speed is always constant, the speed at the completion of the opening / closing operation of the sliding door is too high. There was a problem that shocked the car and made passengers feel uneasy. If the opening / closing speed of the sliding door is reduced in order to avoid these problems, the opening / closing time of the sliding door becomes long, which has a problem of affecting the operation of the vehicle.

An object of the present invention is to open and close the sliding door without delay even if the sliding door is opened or closed, without giving a shock to the vehicle body, making passengers feel uneasy, and not affecting the operation of the vehicle. An object of the present invention is to provide a control device for an automatic door device for a vehicle.

[0006]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1, 2 and 5 corresponding to the embodiments. A control device for an automatic door device for a vehicle according to the present invention includes a passenger doorway 11 provided in a vehicle 10, a sliding door 12 movably provided in a width direction of the passenger doorway 11 and closing the passenger doorway 11 so as to be openable, and a passenger. Doorway 11
Passenger entrance / exit 1 provided along the wall 13 of the vehicle body adjacent to
A door pocket 14 in which the sliding door 12 is housed when the door 1 is opened,
A cylinder 34 formed of a non-magnetic material and fixed in the door pocket 14 so as to extend in the width direction of the sliding door 12, a piston 36 having a magnetic force slidably inserted into the cylinder 34, and slidably fitted into the cylinder 34. The slider 37 has a magnetic force that is attracted to the piston 36 through the cylinder 34 by the magnetic force of the piston 36, and the slider 37 that is attracted to the piston 36 by supplying / discharging compressed air to / from the cylinder 34.
Circuit means 38 for reciprocating the cylinder along the cylinder 34
And a connecting means 49 for connecting the slider 37 and the sliding door 12.
With. Its characteristic configuration is that the sensor 58 is provided near the slider 37 or the sliding door 12 and detects the position of the sliding door 12, and the amount of compressed air that the air circuit means 38 supplies to and discharges from the cylinder 34 based on the detection output of the sensor 58. The control circuit 61 reduces the moving speed of the sliding door 12 by a predetermined distance before the sliding door 12 is completely closed or by a predetermined distance before the sliding door 12 is completely opened.

[0007]

When the passenger doorway 11 is opened, the control circuit 61 switches the supply and discharge of compressed air to and from the cylinder 34 via the air circuit means 38, and moves the sliding door 12 at a high speed. When the sensor 58 detects a predetermined distance before the sliding door 12 is completely opened, the control circuit 61 throttles the amount of compressed air supplied to and discharged from the cylinder 34 via the air circuit means 38 based on the detection output of the sensor 58. The moving speed of the sliding door 12 decreases. Further, when the passenger doorway 11 is closed, the control circuit 61 switches the supply and discharge of compressed air to and from the cylinder 34 via the air circuit means 38 so as to be opposite to the above, and moves the sliding door 12 at a high speed. When the sensor 58 detects a predetermined distance before the sliding door 12 is completely closed,
Since the control circuit 61 throttles the amount of compressed air supplied to and discharged from the cylinder 34 via the air circuit means 38 based on the detection output of the sensor 58, the moving speed of the sliding door 12 becomes small.

[0008]

An embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 5, a passenger entrance / exit 11 is provided substantially in the center of one side surface of the bus 10, and the passenger entrance / exit 11 is provided with a sliding door 12 for closing the entrance / exit 11 so as to be openable. To be The sliding door 12 is attached to the vehicle body so as to be movable in the width direction of the passenger entrance / exit 11, that is, along the side surface of the bus 10. A door pocket 14 is provided along the inner surface of the outer panel 13 of the vehicle body adjacent to the passenger entrance / exit 11.

A pair of square tubes 16 and 17 extending in the vertical direction are disposed on both side edges of the passenger entrance / exit 11, and one of the square tubes 16 and 17 is one corner portion of the door pocket 14. Make up. The door pocket 14 has square tubes 16, 18, 19 arranged at three corners of the four corners, an outer panel 13 installed between the square tubes 16, 18, and a cross-section reverse between the square tubes 18, 19. An inner panel 21 that is bent and installed in an L shape,
The side panel 22 is provided between the square tubes 16 and 19 and has an opening 22a into which the sliding door 12 can be loosely inserted, and the sliding door 1 is provided inside the door pocket 14 when the passenger entrance / exit 11 is opened.
A flat rectangular parallelepiped space having a volume that accommodates 2 is formed (FIGS. 2 and 5). A square tube 23 is provided horizontally from the upper edge of the passenger entrance / exit 11 to the upper edge of the door pocket 14,
The upper rail 24 is fixed along the square tube 23. Two rollers 26, 26 are attached to the upper edge of the sliding door 12 via stays 27, 27, and the sliding door 12 is suspended by locking the rollers 26, 26 on the upper rail 24. Further, a lower rail 29 is fixed on the lower panel 28 facing the lower edge of the sliding door 12 from the lower edge of the passenger entrance / exit 11 to the lower edge of the door pocket 14.
A recessed groove 12a formed at the lower edge of the sliding door 12 is loosely fitted in the. The sliding door 12 is driven by the driving means 33 and the roller 26
Rolls on the upper rail 24 to openably close the passenger entrance / exit 11 (FIGS. 4 and 5). Reference numeral 31 is a roller that prevents the roller 26 from coming off the upper rail 24 (FIG. 4), and 32 is a weather strip (FIG. 2).

The drive means 33 extends in the width direction of the sliding door 12 in the door pocket 14 and is fixed to the cylinder 34, and the cylinder 34.
A piston 36 slidably inserted into the cylinder and a cylinder 34.
A slider 37 slidably fitted in the cylinder 34, air circuit means 38 for supplying / discharging compressed air to / from the cylinder 34, and a slider 37.
And a connecting means 49 for connecting the door 12 and the sliding door 12. The cylinder 34 is a non-magnetic material, in this example stainless steel (SUS304)
Is formed into a cylindrical shape by a pair of blocks 34 at both ends.
It is fixed to the square tubes 18 and 16 via a and 34b, respectively (Fig. 2). Air supply / exhaust holes 34c, 34d communicating with the inside of the cylinder 34 are formed in the pair of blocks 34a, 34b (FIGS. 1 and 3).

The piston 36 is a pair of piston bodies 36.
a, 36a and a plurality of ring-shaped piston magnets 3 provided alternately between these piston bodies 36a, 36a.
6b and spacer 36c, and a pair of piston bodies 36a, 3
6a has a pair of cushion rubbers 36d and 36d that are in close contact with the outer end surfaces of the 6a. Piston body 36a,
Piston magnet 36b, spacer 36c and cushion rubber 3
A bolt 36e is inserted through 6d, and nuts 36f and 36f are screwed into both ends of the bolt 36e to integrally form these members 36a to 36d (FIG. 3). The slider 37 has a through hole 37b larger than the outer diameter of the cylinder 34, and a pair of female screws 37c are provided at both ends of the through hole 37b.
And a slider body 37a in which the
a and a plurality of slider magnets 37d and spacers 37e inserted alternately between the cylinder a and the cylinder 34, and a slider body 37a.
Pair of covers 37f, 37f that are screwed into the female screw 37c to bring the slider magnet 37d and the spacer 37e into close contact with each other.
And (FIG. 3). The slider magnet 37d is the cylinder 3
The slider magnet 37d and the piston magnet 36b are attracted to each other by these magnetic forces, with the magnetic poles reversed and the outer surface of the cylinder 34 slidably disposed at a position opposed to the piston magnet 36b via 4.

The air circuit means 38 is connected to a pair of air supply / exhaust holes 34c, 34d formed in a pair of blocks 34a, 34b of the cylinder 34, and the first to third switching valves 4 are connected.
1 to 43 and a compressed air source 39. First switching valve 41
Is a 5-port 2-position switching solenoid valve, and the second switching valve 4
The 2nd and 3rd switching valve 43 is a solenoid valve of 3 port 2 position switching. The compressed air source 39 is connected to the air supply port 41a of the first switching valve 41, and the throttle valves 44 and 45 are connected to the exhaust ports 41b and 41c, respectively. First switching valve 41
41d is directly connected to the port 42a of the second switching valve 42 and is also connected to the port 42b of the second switching valve 42 via the throttle valve 46. Also, the port 4 of the first switching valve 41
1e is directly connected to the port 43a of the third switching valve 43 and is also connected to the port 43b of the third switching valve 43 via the throttle valve 47. The port 42c of the second switching valve 42 is connected to the air supply / exhaust hole 34c, and the port 43c of the third switching valve 43 is connected to the air supply / exhaust hole 34d (FIG. 1). The coupling means 49 includes a pair of engaged members 51 and 52 provided on the outer peripheral surface of the slider 37 symmetrically with respect to the hole center of the slider 37.
The bracket 53 fixed to the sliding door 12 has a pair of engaging portions 54a and 54b that engage with the pair of engaged members 51 and 52, respectively. The pair of engaged members 51 and 52 are a pair of shaft members vertically projecting on the upper surface and the lower surface of the slider 37 on the same axis, and the pair of engaging portions 54a and 54b are a pair of engaged members. A pair of concave grooves that are loosely fitted in the members 51 and 52, respectively. The bracket 53 is fixed to a substantially U-shaped engaging piece 54 having a pair of engaging portions 54a and 54b, and one side edge of the sliding door 12 that holds the engaging piece 54 and is always located in the door pocket 14. And a holding portion 56. Reference numeral 57 is a stopper for the sliding door 12 housed in the door pocket 14, and the holding portion 56 can come into contact with the stopper 57 (FIGS. 2 and 3).

The characteristic construction of this embodiment is that the slider 37 is
Sensor 58 for detecting the position of the sliding door 12 provided near the
And the air circuit means 38 based on the detection output of the sensor 58.
By reducing the amount of compressed air supplied to and discharged from the cylinder 34 by a predetermined distance before the sliding door 12 is completely closed or by the sliding door 1.
2 is provided with a control circuit 61 for reducing the moving speed of the sliding door 12 by a predetermined distance before being completely opened. The sensor 58 is a limit switch in this example, and the door pocket 1
It is attached to a bracket 59 which is provided so as to project toward the center of the cylinder 34 on the inner surface of the outer panel 13 forming 4 (FIGS. 1, 2 and 5). The sensor 58 has a case 58a having a built-in micro switch, an arm 58b protruding from the case 58a, and a roller 58c attached to the tip of the arm 58b (FIGS. 1 and 2). Sensor 5
When the slider 37 sliding on the outer surface of the cylinder 34 arrives at the center of the cylinder 34, the slider 37 comes into contact with the roller 58c to rotate the arm 58b and close the contact. It is supposed to open. The control circuit 61 includes a battery 62 and a key switch 63 provided in a driver's seat (not shown) for starting the engine.
And an opening / closing switch 64 provided in the driver's seat for opening and closing the sliding door 12, and two electromagnetic relays 66, 6 having make contacts.
7 and 7. The open / close switch 64 has a common contact 64a,
It has a movable piece 64b and two switching contacts 64c and 64d. The electromagnetic relay 66 is connected to the key switch 63 via the sensor 58. For ease of understanding, FIG. 1 also shows sensor 58 in electrical circuits other than in the vicinity of cylinder 34. The electromagnetic relay 66 includes a coil portion 66a and a switch portion 6
6b, the electromagnetic relay 67 has a coil portion 67a and a switch portion 67b which are connected in series to the coil portion 66a. A common contact 64a of the open / close switch 64 is connected to the key switch 63, and the switching contact 64 of the open / close switch 64 is connected.
c and 64d are connected to the switch section 66b of the electromagnetic relay 66 via diodes 68 and 69, respectively. Further, the key switch 63 includes a switch portion 67b of the electromagnetic relay 67.
The control unit of the second switching valve 42 and the control unit of the third switching valve 43 are connected in parallel via the. Further, the switching contact 64d of the open / close switch 64 is connected to the control section of the first switching valve 41 (FIG. 1).

The operation of the control device for the vehicle automatic door device thus configured will be described. When the driver (not shown) switches the movable piece 64b of the opening / closing switch 64 to the position shown by the chain double-dashed line in FIG. 1 in order to stop the bus 10 at the stop and get on and off the passengers, the first switching valve 41 is activated. When turned on, the air supply port 41a and the port 41e communicate with each other and the port 41d
Since the exhaust port 41b and the exhaust port 41b communicate with each other, the compressed air source 39
Compressed air is supplied to the cylinder 34 through the third switching valve 43 and the air supply / exhaust hole 34d, and the compressed air in the cylinder 34 is discharged to the atmosphere through the air supply / exhaust hole 34c and the second switching valve 42, and the slider 37 Moves with the piston 36 in the direction of the dashed arrow. At this time, the second switching valve 42 and the third
Since the switching valve 43 remains off, compressed air flows through the throttle valve 4
It is supplied to and discharged from the cylinder 34 without passing through 6, 6, and the moving speed of the slider 37, that is, the moving speed of the sliding door 12 is high. When the slider 37 reaches the center of the cylinder 34, the sensor 58
Contacting the roller 58c of the electromagnetic relay 58c, the contact of the sensor 58 is closed and a current flows through the coil portions 66a and 67a of the electromagnetic relays 66 and 67.
67b is closed, and the second switching valve 42 and the third switching valve 43 are turned on. As a result, the compressed air from the compressed air source 39 is supplied to the cylinder 34 from the air supply / exhaust hole 34d via the throttle valve 47 and the third switching valve 43, and the compressed air in the cylinder 34 is compressed by the second switching valve 42 and the throttle valve 46. Since it is discharged to the atmosphere through the, the moving speed of the sliding door 12 becomes small. When the slider 37 moves away from the roller 58c, the contact of the sensor 58 opens, but the coil portions 66a and 67a of the electromagnetic relays 66 and 67 are opened.
Current continues to flow through the open / close switch 64 and the switch portion 66b of the electromagnetic relay 66, the electromagnetic relay 6
The switch portions 66b and 67b of 6, 67 are kept closed, and the moving speed of the sliding door 12 is kept small.
Therefore, the impact when the sliding door 12 is completely opened and the holding portion 56 of the bracket 53 contacts the stopper 57 is small.

When the driver switches the movable piece 64b of the opening / closing switch 64 to the position shown by the solid line in FIG. 1 after the passengers have boarded / unloaded, the first switching valve is turned off and the air supply to the first switching valve 41 is completed. Port 41a and port 41d communicate with each other and port 4
1e communicates with the exhaust port 41c, the supply and discharge of compressed air to and from the cylinder 34 is reversed, and the slider 37 moves together with the piston 36 in the direction of the one-dot chain line arrow.
When the open / close switch 64 is switched, the movable piece 64b is separated from the one-end switching contact 64c, so that no current flows through the coil portions 66a, 67a of the electromagnetic relays 66, 67 and the switch portions 66b, 67b are opened. As a result, the second switching valve 42 and the third switching valve 43 are turned off, so that the moving speed of the slider 37, that is, the moving speed of the sliding door 12 increases. When the slider 37 arrives at the center of the cylinder 34 and comes into contact with the roller 58c of the sensor 58, the contact of the sensor 58 closes and current flows through the coil portions 66a and 67a of the electromagnetic relays 66 and 67, respectively, and the switch portions 66b and 67b. Closed, second
The switching valve 42 and the third switching valve 43 are turned on. As a result,
The compressed air from the compressed air source 39 is supplied to the cylinder 34 from the air supply / exhaust hole 34c via the throttle valve 46 and the second switching valve 42, and the compressed air in the cylinder 34 is supplied to the air supply / exhaust hole 34d, the third switching valve 43 and the throttle. Since it is discharged to the atmosphere through the valve 47, the moving speed of the sliding door 12 becomes small. Slider 37
Although the contact of the sensor 58 opens when is separated from the roller 58c, the open / close switch 64 and the switch portion 6 of the electromagnetic relay 66 are provided in the coil portions 66a and 67a of the electromagnetic relays 66 and 67.
Since the current continues to flow through 6b, the electromagnetic relay 66,
The switch portions 66b and 67b of 67 are kept closed, and the moving speed of the sliding door 12 is kept small. Therefore, the impact when the sliding door 12 is completely closed is small.

Although the bus is used as the vehicle in the above embodiment, this is an example, and a railroad vehicle or another vehicle may be used as long as it has an automatic door. In the case of railway vehicles, especially railway vehicles for long-distance transportation, not only the automatic door device for the passenger entrance / exit, but also the passenger doorway formed on the wall that separates the passenger compartment of each connected vehicle from the washroom and passenger entrance / exit It can also be applied to automatic door devices. Further, in the above embodiment, the sensor is provided near the slider to detect the switching position of the moving speed of the slider, but the present invention is not limited to this and may be provided near the sliding door to directly detect the switching position of the moving speed of the sliding door. . Also,
In the above embodiment, one sensor detects the switching position of the moving speed of the slider when the sliding door is opened and closed.
It is also possible to use two sensors and use one of the sensors to detect the switching position of the moving speed of the slider when the sliding door is opened, and the other sensor to detect the switching position of the moving speed of the slider when the sliding door is closed. In this case, the switching position of the moving speed of the slider can be freely set. Further, although the limit switch is used as the sensor in the above embodiment, a photoelectric switch, a proximity switch or another sensor may be used as long as the position of the slider or the sliding door can be detected.

[0017]

As described above, according to the present invention, the sensor provided in the vicinity of the slider or the sliding door detects the position of the sliding door, and the control circuit operates the air circuit means based on the detection output of this sensor. By reducing the amount of compressed air supplied to and discharged from the cylinder, the moving speed of the sliding door is reduced by a predetermined distance before the sliding door is completely closed or by a predetermined distance before the sliding door is completely opened. It does not give a shock to the car body when opened or closed, and does not cause passengers to feel uneasy. Further, the sliding door can be opened and closed without delay to the extent that it does not affect the operation of the vehicle.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an air circuit and a control circuit of a control device for an automatic door device for a vehicle according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a sectional view taken along line BB of FIG.

4 is a cross-sectional view taken along the line CC of FIG.

FIG. 5 is a side view of a main part of the bus including the sliding door.

[Explanation of symbols]

 10 Bus (vehicle) 11 Passenger entrance / exit (passenger entrance / exit) 12 Sliding door 13 Outer panel (wall) 14 Door pocket 34 Cylinder 36 Piston 37 Slider 38 Air circuit means 49 Coupling means 58 Sensor 61 Control circuit

Claims (1)

[Claims] 1. A passenger doorway (11) provided in a vehicle (10)
And a sliding door (12) movably provided in the width direction of the passenger entrance / exit (11) for closing the passenger entrance / exit (11) so as to be openable, and a vehicle body wall (13) adjacent to the passenger entrance / exit (11) A door pocket (14) which is provided along the door and accommodates the sliding door (12) inside when the passenger entrance (11) is opened; and the door pocket (14) is fixed by extending in the width direction of the sliding door (12). A cylinder (34) formed of a non-magnetic material, a piston (36) having a magnetic force slidably inserted in the cylinder (34), and the piston slidably fitted in the cylinder (34). (3
A slider (37) having a magnetic force that is attracted to the piston (36) through the cylinder (34) by the magnetic force of (6); and compressed air is supplied to and discharged from the cylinder (34) to remove the piston (3).
6) Pull the slider (37) attracted to the cylinder (3)
4) Air circuit means (38) for reciprocating along, and coupling means for coupling the slider (37) and the sliding door (12)
(49) A vehicle automatic door device comprising: a sensor (58) provided near the slider (37) or the sliding door (12) for detecting the position of the sliding door (12); The air circuit means based on the detection output of (58)
(38) A predetermined distance before the sliding door (12) is completely closed or a predetermined distance before the sliding door (12) is completely opened by throttling the amount of compressed air supplied to and discharged from the cylinder (34). And a control circuit (61) for reducing the moving speed of the sliding door (12).