JPH10167649A - Escalator control system for wheelchair dolly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a dolly to safely get on and off an escalator without bothering general passengers. SOLUTION: A first photoelectric sensor A1 to irradiate a beam of light to a landing port of an escalator A is arranged in the vicinity of a displacement completed point to an inclined condition from a horizontal condition, and a second photoelectric sensor A2 is arranged in the vicinity of a displacement starting point to a horizontal condition from an inclined condition, and a third photoelectrice sensor A3 is arranged in an alighting port, and a fourth photoelectric sensor A4 is arranged. A reflecting plate to reflect a beam of light irradiated from the photoelectric sensors, is arranged on a dolly riding into the escalator. When the dolly is made to ride into the escalator, operation speed of the escalator is controlled in such a way that when a beam of light irradiated from the first photoelectric sensor Al is detected by being reflected by the reflecting plate, the operation speed of the escalator is reduced to low speed, and when it is detected by the second photoelectric sensor A2, the operation speed is returned to ordinary speed, and when it is also detected by the third photoelectric sensor A3, the operation speed is again reduced to low speed, and when it is detected by the fourth photoelectric sensor A4, the operation speed is returned to ordinary speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator control system for a wheelchair carrier so that a carrier carrying a wheelchair and getting on and off the escalator can use the escalator safely.

[0002]

2. Description of the Related Art In recent years, with the improvement of social welfare, transport vehicles for wheelchair users at stations and school buildings have become widespread. However, measures for escalators for wheelchair users are not yet sufficiently equipped, and there is a problem that escalators cannot be used by wheelchair users.

[0003] In order to solve such problems, the present applicant has proposed a wheelchair carrier for an escalator for mounting and dismounting an escalator with a wheelchair as shown in Figs. The transport vehicle 1 has a vehicle body 2 having a length spanning at least two or more steps of an escalator, a pair of left and right front wheels 3 and rear wheels 4 provided on the vehicle body 2, and Wheelchair mounting table 5 that can be tilted
, A tilt sensor 6 disposed on the mounting table 5, and an electric cylinder 7 disposed between the vehicle body 2 and the mounting table 5. After the wheelchair is mounted on the transport vehicle 1, the front wheels 3 and the rear wheels 4 are grounded, and the transport vehicle 1 is moved to the escalator entrance. At this time, the front wheel 3
And the rear wheel 4 is adjusted so as to be located on the step of the escalator. When the step is displaced and the escalator is inclined, the ridge of the step comes into contact with the lower surface of the vehicle body 2, and the vehicle 2, that is, the transport vehicle 1 is supported by the ridge. At this time, since the front wheels 3 and the rear wheels 4 are located on the steps, the front wheels 3 and the rear wheels 4 are located in a stepped air space caused by the displacement of the steps, and are in a free state without touching the ground. When the escalator is tilted, the tilt sensor 6 provided on the mounting table 5 detects this tilt, and the electric cylinder 7 is extended and retracted according to the tilt of the escalator until the mounting table 5 becomes substantially horizontal. Let it. As a result, the wheelchair patient in the carrier 1 feels fear /
The rider can get on the transport vehicle 1 without feeling uneasy and move up and down on the escalator.

[0004]

The escalator is operated at a required speed (about 30 m / min) in order to raise and lower passengers smoothly. However, in order for the above-mentioned transport vehicle to safely and properly get in and out of the escalator that operates at such a driving speed, a skilled technique is required, and a first-time operator has anxiety in operation. Also, the wheelchair user is afraid of the sudden inclination displacement.

In order to eliminate such anxiety, it is conceivable to reduce the operating speed of the escalator over the entire length of the escalator while the carrier gets on and out of the escalator. The transport time of the passengers on the escalator becomes longer, and the original purpose of the escalator is hindered.

[0006] The present invention has been devised to solve such problems, and is intended for a wheelchair transport vehicle capable of safely loading and unloading a transport vehicle on an escalator without disturbing ordinary passengers. It is an object of the present invention to provide an escalator control system.

[0007]

In order to achieve the above object, according to the present invention, a plurality of steps are connected endlessly, and are gradually displaced from a horizontal state to an inclined state at a doorway. An escalator control system for a wheelchair transport vehicle for safely getting on and off a wheelchair transport vehicle on an escalator that gradually displaces from an inclined state to a horizontal state, wherein the first photoelectric device irradiates a light beam to the entrance of the escalator. A sensor, a second photoelectric sensor near a displacement completion point of the escalator from the horizontal state to the inclined state, a third photoelectric sensor near a displacement start point of the escalator from the inclined state to the horizontal state, 4th on exit
In addition to providing the photoelectric sensor of the above, the transport vehicle that gets on the escalator is provided with a reflecting plate that reflects the light beam emitted from the photoelectric sensor, when the transport vehicle gets on the escalator, from the first photoelectric sensor The operating speed of the escalator is reduced when the irradiated light is detected by being reflected by the reflector, and the operating speed is returned to the normal speed when the reflector is detected by the second photoelectric sensor. The operation speed of the escalator is controlled so as to reduce the operation speed again when the third photoelectric sensor detects the operation speed, and to return the operation speed to the normal speed when the reflection plate is detected by the fourth photoelectric sensor. It is characterized by having done.

According to a second aspect of the present invention, each of the photoelectric sensors is provided on a side wall of an escalator, and the reflection plate is provided on a side surface of a transport vehicle.

According to a third aspect of the present invention, a manual switch is provided near the entrance of the escalator in place of the first photoelectric sensor.

According to a fourth aspect of the present invention, the first photoelectric sensor is disposed on an escalator entrance surface and the fourth photoelectric sensor is disposed on an escalator exit surface, and a reflection plate is provided on a lower surface of the transport vehicle. In addition, the first and fourth photoelectric sensors immediately before and after the escalator detect the entry and exit of the carrier.

[0011]

According to the present invention, a wheelchair is mounted on a transport vehicle and the transport vehicle is loaded on an escalator. At this time, since the first photoelectric sensor for detecting the reflected light from the reflector is provided on the side wall of the escalator entrance, when the transport vehicle approaches the entrance of the escalator, it is attached to the side of the transport vehicle. Light rays emitted from the first photoelectric sensor are reflected on the reflection plate provided,
This is detected by the first photoelectric sensor, and the operating speed of the escalator is reduced from the normal speed (30 m / min). Thereby, the inclination displacement of the steps is reduced near the entrance of the escalator, so that the transport vehicle can safely and properly enter the escalator.

In the process of transporting the transport vehicle in the above-described low-speed operation state, when the transport vehicle approaches the point where the displacement of the escalator from the horizontal state to the inclined state is completed, the reflection plate of the transport vehicle receives the signal from the second photoelectric sensor. The light beam is reflected and detected by the second photoelectric sensor, and the operating speed of the escalator is returned to the normal speed. At this time, since the transport vehicle is transported to the escalator in a stable state, even if the escalator operates at a normal speed, the wheelchair user does not feel fear or discomfort.

When the transport vehicle stably transported at the normal speed is transported to a position where the escalator starts to be displaced from the inclined state to the horizontal state, that is, near the exit, a third photoelectric sensor is provided on the reflector of the transport vehicle. Is reflected by the third photoelectric sensor, and the operating speed of the escalator is reduced from the normal speed. Therefore, the transport vehicle can shift from the inclined state to the horizontal state in the low-speed driving state,
There is no fear or discomfort to wheelchair users. Furthermore, since the transport vehicle can escape from the escalator in a low-speed driving situation, the transport vehicle can safely and properly escape from the escalator without panic.

When the transport vehicle escapes from the exit of the escalator in the low-speed driving state, the light beam from the fourth photoelectric sensor is reflected on the reflection plate of the transport vehicle, and the light is detected by the fourth photoelectric sensor. Is returned to the normal speed, and the escalator is returned to the normal operation.

[0015] As described above, when a vehicle equipped with a wheelchair is dangerous when getting on and off the escalator, and when the occupant of the wheelchair feels fear or discomfort, when the vehicle enters the escalator and escapes. The escalator operating speed is reduced only when As a result, the transport vehicle can safely and properly get on and out of the escalator, and the escalator's inclination displacement and horizontal displacement are reduced for the occupant of the wheelchair. You can get on and off the escalator without feeling.

According to the third aspect of the present invention, by providing a manual switch near the escalator entrance in place of the first photoelectric sensor, the operating speed of the escalator can be reliably reduced before the carrier gets on the escalator. can do.

Further, according to the invention described in claim 4, the first aspect is as follows.
The photoelectric sensor is arranged on the escalator entrance surface, and the fourth photoelectric sensor is arranged on the escalator exit surface, and the reflector is provided on the lower surface of the carrier, so that the escalator operates at a low speed before the carrier enters the escalator. The vehicle can be returned to normal operation after the vehicle has escaped from the escalator. Therefore, the carrier can more safely and appropriately get on and out of the escalator.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. First, in describing the escalator control system for a wheelchair transport vehicle of the present invention, a transport vehicle that gets on and off the escalator will be described in detail.

FIG. 1A is a side view of an escalator wheelchair carrier, and FIG. 1B is a top view. FIG. 2A is a rear view of the transport vehicle, and FIG. 2B is a front view. In the figure, reference numeral 1 denotes an escalator wheelchair carrier, which is provided with a vehicle body 2, a pair of left and right front wheels 3 and rear wheels 4 provided on the vehicle body 2, and which can tilt with respect to the vehicle body 2. A wheelchair mounting table 5 to be provided;
An electric cylinder 7 disposed between the vehicle body 2 and the mounting table 5;
And a reflection plate 8 disposed on the side surface of the light emitting element.

The vehicle body 2 is made of a metal having a certain degree of rigidity. A pair of left and right side frames 21 and 21 and vertical frames 22 and 22 standing on the side frames 21 and 21 at the front of the vehicle body 2 are provided.
And horizontal frames 23, 2 arranged over the vertical frames 22, 22.
3 and vertical frames 24, 24 disposed between the horizontal frames 23, 23 near the center of the vehicle body 2, and are formed in a substantially U-shape in a top view shape. The side frames 21 and 21 have a U-shaped cross section in consideration of the weight and rigidity of the vehicle body.
A plate member 25 protruding forward is provided at the tip of the vehicle body 2, and the plate member 25 has a required width 25 near the center.
a. An uneven lug-shaped elastic member 26 formed of an elastic body such as rubber or resin is provided on the lower end surfaces of the side frames 21 and 21. The elastic member 26 has a ridge portion of a step of an escalator. Comes into contact. Further, safety bars 27, 27 are disposed on both the left and right sides of the vehicle body 2 over the entire length thereof, which prevent the wheelchair from rolling over from side to side and also serve as a steering wheel of an attendant. The safety bar 27 is provided with a manual switch 91 described later. Further, near the center of each of the side frames 21 and 21, a reflector 8 for reflecting a light beam emitted from a photoelectric sensor described later is provided.

The front wheel 3 is formed in a caster shape, and a rotation shaft 31 of the front wheel 3 penetrates through the plate member 25 so as to be rotatable. As shown in FIG. 2B, a compression spring 34 is interposed on the rotation shaft 31 via a snap ring 32 and a washer 33.
One end of the compression spring 34 is pressed against the washer 33 and the other end is pressed against the plate member 25 in a state where the direction of the front wheel 3 is located in the traveling direction. Therefore, although the front wheel 3 can rotate to some extent, it is always biased in the traveling direction when there is no load. As a result, the direction can be changed by the rotation of the front wheels 3 while the transport vehicle 1 is traveling on flat ground, and the front wheels 3 are biased in the traveling direction when the escalator is tilted and the front wheels 3 are free. Therefore, when the step of the escalator is horizontally displaced and the front wheel 3 comes into contact with the step, the front wheel 3 is always in the traveling direction, so that the escalator can escape from the escalator smoothly without hitting the side wall of the escalator. .

The rear wheel 4 is supported on the side frame 21 by a pivot 41. Since the side frame 21 has a U-shaped cross section, the rear wheel 4 is sandwiched between the side frames 21.

As shown in the top view of FIG. 3A, the side view of FIG. 3B, and the front view of FIG.
An L-shaped mounting plate 51 having a certain degree of rigidity so that a wheelchair can be mounted thereon, and side plates 52, 52 disposed on the left and right sides of the mounting plate for the purpose of reinforcing. Also,
Near the center at the front of the mounting table 5, two projecting plates 53, 53 projecting obliquely upward and forward are integrally formed.
One end of an electric cylinder 7, which will be described later, is connected to the tips of the protruding plates 53, 53. The mounting table 5 configured as described above is rotatably supported on the vehicle body 2 at an end of the mounting plate 51 by a pivot 54 so that a wheelchair can be put on the mounting table 5 from the rear of the mounting table 5. It has become. Here, when the mounting table 5 is in a horizontal state, the mounting table 5 comes into contact with the ground and slightly lifts the vehicle body 2, so that the front wheels 3 and the rear wheels 4 do not touch the ground. Further, when the mounting table 5 rotates about the pivot as a support shaft and inclines with respect to the vehicle body 2, the front wheel 3 and the rear wheel 4 are in contact with the ground, and the transport vehicle 1 can run.
As a result, when the wheelchair is mounted on the transport vehicle, the transport vehicle 1
Since the vehicle does not move, the wheelchair can be safely mounted on the transport vehicle 1.

An inclination sensor 6 is provided on the protruding plate 53 of the mounting table 5. The tilt sensor 6 includes a first tilt sensor 61 and a second tilt sensor 62. The tilt sensors 61 and 62 have current-carrying terminals 61a, 61b, 62a and 62b facing the ends of the cylindrical member, and mercury 61c and 62c are provided inside the cylindrical member so as to flow therethrough. When the mercury 61c, 62c is located on the side of the energizing terminal inside the cylindrical member, the energizing state is established, and the motor of the electric cylinder 7 is operated.

Further, the above-described reflecting plate 8 may be provided substantially at the center of the lower surface of the mounting table 5. This is applicable to the case of a third usage mode described later, and reflects light rays from a photoelectric sensor disposed on an escalator entrance / exit surface.

The electric cylinder 7 has a built-in motor 71 which rotates electrically, and expands and contracts according to the rotation direction of the motor 71. Further, it is assumed that electric power is supplied from a battery 73 installed on the plate member 25 via a battery receiver 72 to operate. One end of the electric cylinder 7 has a vertical frame 24 of the vehicle body 2,
24 are pivotally connected by a pivot 74, and the other end is pivotally connected between the projecting plates 53 of the mounting base 5 by a pivot 75.
Are rotatably connected to each other. Then, when the electric cylinder 7 is extended, the projecting plates 53, 53 are pushed, and the mounting table 5 is inclined with respect to the vehicle body 2 with the pivot 54 as a support shaft.

The first inclination sensor 61 is connected to the grounding table 5.
Is inclined with respect to the required angle α. More specifically, α is about 8 °, and is arranged so as to incline to the right in the drawing. Further, the second tilt sensor 62
Is arranged at a required angle β with respect to the first inclination sensor 61, specifically, about β = 8 °, and is arranged so as to incline upward to the right in the drawing.

With this arrangement, when the manual switch 91 is turned on, the first tilt sensor 61 is turned on.
Since the mercury 61c is located on the side of the current-carrying terminals 61a and 61b, it is energized and the motor 71
Is rotated forward to extend. Therefore, the mounting table 5 is inclined with respect to the vehicle body 2, and when the inclination angle exceeds approximately 15 °, the mercury 61
c moves to the other end side, and the energization is cut off. When the transport vehicle 1 gets on the escalator and the mounting table 5 is tilted negatively due to the inclination displacement of the escalator, the electric cylinder 7 is extended again until the mounting table 5 becomes substantially horizontal, and the electric cylinder 7 is extended. The mounting table 5 is tilted. Conversely, when the escalator is displaced horizontally and the vehicle body 2 approaches a horizontal state, the mercury 62c of the second tilt sensor 62 is turned on by the current-carrying terminals 62a, 62a.
It moves to the side 2b to be energized. Therefore, the motor 71 rotates in the reverse direction, the electric cylinder 7 contracts, and the mounting table 5 also gradually inclines in the horizontal direction.

As described above, the transport vehicle 1 has a configuration in which a wheelchair is mounted and gets on and off the escalator, and the mounting table 5 is tilted so as to be substantially horizontal with the tilt displacement and horizontal displacement of the escalator.

Another configuration of the transport vehicle 1 is not shown, but is not provided with an inclination sensor. When the manual switch 91 is turned on, the electric cylinder 7 is extended and the mounting table 5 is attached to the vehicle body 2. It is inclined about 35 ° with respect to it. Then, in that state, get on the escalator and escape again. When the manual switch 91 is turned off, the electric cylinder 7 contracts and the mounting table 5 is returned to a horizontal position.

Next, a first mode of use of the escalator control system for a wheelchair carrier according to the present invention will be described using the carrier 1 having the above-described configuration. FIG. 4 is a side view of an ascending escalator. An escalator A has a plurality of steps D connected endlessly between a entrance surface B and a exit surface C, and side walls E are provided on both sides.
And a belt F that moves as the step D moves. And a control unit G for controlling the operation speed therein;
A power source H driven by a signal from the control unit G is arranged. In the escalator A, the steps D and the belt F are driven by receiving the power from the power source H. The escalator A operates at a normal operation speed of 30 m / min.

On the side wall E of the escalator A, a photoelectric sensor for irradiating a light beam and detecting reflection of the light beam is provided. The first photoelectric sensor A1 is provided at the end of the entrance of the escalator A, and the second photoelectric sensor A2 is provided at a point where the escalator A has been completely displaced from the horizontal state to the inclined state. The third photoelectric sensor A3 is provided at a point where the escalator A starts to be displaced from the inclined state to the horizontal state, and the fourth photoelectric sensor A4 is provided at the end of the exit of the escalator A. I have. The signals from the photoelectric sensors are sent to the control unit G, respectively.

Next, the operation of the first mode of use of the escalator control system configured as described above will be described. First, a wheelchair is mounted on the transport vehicle 1 and the transport vehicle 1 is put on the escalator A. At this time, the light beam emitted from the first photoelectric sensor A1 is reflected on the reflecting plate 8 disposed on the side surface of the transport vehicle 1, and the first photoelectric sensor A1 detects the light, and the signal is transmitted to the control unit G. And the power source H is decelerated. Then, the operating speed of the escalator A is set to the normal speed (30
m / min) to 15 to 20 m / min. Thereby, steps D at the entrance of escalator A
Since the inclination displacement of the vehicle is reduced, the transport vehicle 1 can safely and appropriately enter the escalator.

In the process of transporting the transport vehicle 1 in the low-speed operation state described above, when the transport vehicle 1 approaches the point where the displacement of the escalator from the horizontal state to the inclined state is completed, the second reflection plate 8 of the transport vehicle 1 The light beam from the photoelectric sensor A2 is reflected by the second photoelectric sensor A2, and the signal is sent to the control unit G to accelerate the power source H to 30 m / min.
Therefore, the operation speed of the escalator A is returned to the normal speed. At this time, since the transport vehicle 1 is transported to the escalator A in a stable state, even if the driving speed of the escalator A becomes the normal speed, the wheelchair user does not feel fear or discomfort.

When the transport vehicle 1 being stably transported at the normal speed is transported to a point where the escalator A is completely displaced from the inclined state to the horizontal state, that is, near the exit, the transport vehicle 1 The light beam from the third photoelectric sensor A3 is reflected and detected by the third photoelectric sensor A3, and the signal is sent to the control unit G to decelerate the power source H. Then, the operation speed of the escalator A is again increased to the normal speed (30 m / min).
And reduce the speed to 15 to 20 m / min. Therefore, the transport vehicle 1 can shift from the inclined state to the horizontal state in the low-speed driving state, and does not give the wheelchair user fear or discomfort. In addition, transport vehicle 1 in low-speed driving conditions
Can escape from the escalator A, so that the transport vehicle 1 can escape from the escalator A safely and properly without panic.

When the transport vehicle 1 escapes from the exit of the escalator A in a low-speed driving situation, the reflection plate 8 of the transport vehicle 1
Then, the light beam from the fourth photoelectric sensor A4 is reflected by the fourth photoelectric sensor A4, and the signal is sent to the control unit G to accelerate the power source H to 30 m / min. Therefore, the operation speed of the escalator A is returned to the normal speed.

The transport vehicle 1 on which the wheelchair is mounted as described above
Reduces the driving speed of the escalator A when there is a danger when getting on and off the escalator A, and reduces the driving speed of the escalator A only when the wheelchair user feels fear or discomfort. As a result, the transport vehicle 1 can safely and properly get in and out of the escalator, and the wheelchair user can reduce the inclination displacement and the horizontal displacement of the escalator, thereby causing fear and discomfort. It is possible to get on and off the escalator A without feeling.

Next, a second mode of use of the escalator control system for a wheelchair carrier according to the present invention will be described. As shown in FIG. 5, in the second mode of use, a manual changeover switch A1 'is provided at the entrance of the escalator A in place of the first photoelectric sensor A1 in the first mode of use described above.
The changeover switch A1 'is connected to the control unit G in the same manner as the photoelectric sensor A1. Therefore, when the transport vehicle 1 enters the escalator A, the escalator A enters a low-speed driving state by operating the changeover switch A1 '.
After that, it is the same as the above-described first usage mode. Thereby, the driving speed of the escalator can be reliably reduced before the carrier 1 gets on the escalator A.

Next, a third mode of use of the escalator control system for a wheelchair carrier according to the present invention will be described. As shown in FIG. 6, in the third mode of use, the photoelectric sensor A1 in the first mode of use described above is disposed on the entrance surface B of the escalator A, and the photoelectric sensor A4 is further connected to the exit surface C of the escalator A. It is arranged in. Thereby, the transport vehicle 1
Is located on the entrance surface of the escalator A, the light beam emitted from the first photoelectric sensor A1 is reflected on the bottom surface of the transport vehicle 1, that is, the reflection plate 8 disposed on the lower surface of the mounting table 5, This is detected by the first photoelectric sensor A1, and the operation of the escalator A is decelerated. When the transport vehicle 1 escapes from the escalator A and reaches the exit surface C, a light beam emitted from the fourth photoelectric sensor A4 is disposed on the bottom surface of the transport vehicle 1, that is, on the lower surface of the mounting table 5. Reflector 8
And the fourth photoelectric sensor A4 detects it and accelerates the operation of the escalator A. Thus, the escalator A can be operated at a low speed before the transport vehicle 1 enters the escalator A, and the transport vehicle 1 can be returned to the normal operation after the escape from the escalator A.

[0040]

As described above, in the escalator control system for a wheelchair carrier according to the present invention, when a vehicle equipped with a wheelchair gets on and off the escalator, there is a danger and the user of the wheelchair feels fear or discomfort. The operating speed of the escalator is reduced only when the pleasure is felt, that is, when the carrier gets into and out of the escalator. As a result, the transport vehicle can safely and properly get in and out of the escalator without causing a great deal of inconvenience to general passengers, and the tilt displacement and the horizontal displacement of the escalator are reduced for wheelchair users. To be relaxed,
You can get on and off the escalator without fear or discomfort.

According to the third aspect of the present invention, by providing a manual switch in the vicinity of the escalator entrance in place of the first photoelectric sensor, the operating speed of the escalator can be reliably reduced before the carrier gets on the escalator. can do.

Further, according to the fourth aspect of the invention, the first
The photoelectric sensor is arranged on the escalator entrance surface, and the fourth photoelectric sensor is arranged on the escalator exit surface, and the reflector is provided on the lower surface of the carrier, so that the escalator operates at a low speed before the carrier enters the escalator. The vehicle can be returned to normal operation after the vehicle has escaped from the escalator. Therefore, the carrier can more safely and appropriately get on and out of the escalator.

[Brief description of the drawings]

FIG. 1 (a) is a side view of an escalator wheelchair carrier according to an embodiment of the present invention. (B) It is a top view of the wheelchair carrier for escalators by the Example of this invention.

FIG. 2 (a) is a rear view of an escalator wheelchair carrier according to an embodiment of the present invention. (B) It is a front view of a wheelchair carrier for escalators according to an embodiment of the present invention.

FIG. 3A is a top view of a mounting table. (B) It is a side view of a mounting stand. (C) It is a front view of a mounting stand.

FIG. 4 is an explanatory view showing a first mode of use of the present invention.

FIG. 5 is an explanatory view showing a second mode of use of the present invention.

FIG. 6 is an explanatory view showing a third mode of use of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheelchair carrier for escalator 2 Body 21 Side frame 22 Vertical frame 23 Horizontal frame 24 Vertical frame 25 Plate member 25a Required width 26 Elastic member 27 Safety bar 3 Front wheel 31 Rotating shaft 32 Snap ring 33 Washer 34 Compression spring 4 Rear wheel 41 Axis 5 mounting table 51 mounting plate 52 side plate 53 projecting plate 54 Axis 6 tilt sensor 61 first tilt sensor 61a power supply terminal 61b power supply terminal 61c mercury 62 second tilt sensor 62a power supply terminal 62b power supply terminal 62c mercury 7 electric cylinder 71 motor 72 battery Receiver 73 Battery 74 Axis 75 Axis 91 Manual switch A Escalator B Door surface C Exit surface D Step E Side wall F Belt G Control unit H Power source A1 First photoelectric sensor A2 Second photoelectric sensor A3 Third photoelectric sensor A4 Fourth photoelectric sensor

Claims (4)

[Claims] An escalator in which a plurality of steps are connected endlessly and gradually displaced from a horizontal state to an inclined state at an entrance / exit, and gradually displaced from an inclined state to a horizontal state, safely enter and exit a wheelchair carrier. An escalator control system for a wheelchair transport vehicle for causing the escalator to emit a light beam to the entrance of the escalator, and a second photoelectric sensor near a point where the displacement of the escalator from a horizontal state to an inclined state is completed. A photoelectric sensor, a third photoelectric sensor near the displacement start point of the escalator from the inclined state to the horizontal state, and a fourth photoelectric sensor at the exit of the escalator, and a transport vehicle that gets on the escalator, A reflection plate is provided for reflecting light emitted from the photoelectric sensor, and the first photoelectric sensor is provided when the carrier enters the escalator. When the light beam emitted from the sensor is detected by being reflected by the reflector, the operating speed of the escalator is reduced, and when the reflector is detected by the second photoelectric sensor, the operating speed is returned to the normal speed. When the reflection plate is detected by the third photoelectric sensor, the operation speed is reduced again, and when the reflection plate is detected by the fourth photoelectric sensor, the operation speed of the escalator is controlled so that the operation speed returns to the normal speed. An escalator control system for a wheelchair carrier, characterized in that: 2. The escalator control for a wheelchair carrier according to claim 1, wherein each of the photoelectric sensors is provided on a side wall of the escalator, and the reflector is provided on a side surface of the carrier. system. 3. The escalator control system for a wheelchair transport vehicle according to claim 1, wherein a manual switch is provided near the entrance of the escalator in place of the first photoelectric sensor. 4. The vehicle according to claim 1, wherein the first photoelectric sensor is disposed on an escalator entrance surface, the fourth photoelectric sensor is disposed on an escalator exit surface, and a reflection plate is provided on a lower surface of the transport vehicle. 2. The escalator control system for a wheelchair carrier according to claim 1, wherein the first and fourth photoelectric sensors are detected immediately before and after the escalator.