JP2000109280A - Escalator with wheelchair step - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an escalator with wheelchair steps that can be installed in the longitudinal space of a main framework compatible with one for standard escalators. SOLUTION: A wheelchair carrying surface 31 is formed by a plurality of wheelchair steps 20 and others. Just before a landing 4 at an upper main- framework end 3, a movable mechanism 22 and the like including the wheelchair steps 20 and others forming the wheelchair carrying surface 31 are retracted by a working device into a horizontally moving region A of the conveyor surface of a conveyor belt 6 brought shorter than the horizontal surface of the wheelchair carrying surface 31 along the main framework. The shortened horizontally moving region A of the conveyor surface of the conveyor belt 6 at the upper main-framework end 3 permits such easier installation of the wheelchair-steps-equipped escalator as demands no especially widened intervals between supports of both main-framework ends.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator with a wheelchair step provided with a wheelchair step formed by connecting a plurality of steps as needed to form a wheelchair loading surface on a transport belt to which a number of steps are connected.

[0002]

2. Description of the Related Art As a first conventional escalator with steps for a wheelchair, there is, for example, the following configuration disclosed in Japanese Patent Publication No. 14278/1990. In other words, a wheelchair is provided as needed by a transport band in which a large number of steps are connected endlessly to circulate and move within the main frame, and a slope step, a fork step, and a wheel stop step provided between the steps forming part of the transport band. A wheelchair step forming a loading surface is provided.

As a second conventional escalator with steps for a wheelchair, for example, there is the following configuration disclosed in Japanese Patent No. 2581176. In other words, the wheelchair steps provided between the steps of the transport band engage with the in-process device provided at the end of the main frame and operate to form a wheelchair loading surface when necessary.

In these first and second conventional wheelchair step escalators, a plurality of wheelchair steps are fully exposed from the leading edge of the floorboard at the entrance at the end of the main frame. The steps are configured to be engaged with each other to form a wheelchair loading surface. Therefore, a transfer surface horizontal movement area corresponding to the length of the tread surface of the plurality of wheelchair steps exposed at the longitudinal end of the main frame along the main frame length is provided.

[0005]

In the conventional escalator with a step for a wheelchair as described above, a relatively long horizontal transfer area for the transfer surface of the step for a wheelchair is formed at the longitudinal end of the main frame. Further, in the second conventional escalator with a step for a wheelchair, the step for the wheelchair is engaged with the in-process device at the end of the main frame without stopping the transfer band at the time of transferring the wheelchair, so that the wheelchair loading surface is reduced. Perform the forming operation.
For this reason, it is necessary to move the wheelchair steps horizontally while the wheelchair steps engage and move with the in-process device provided at the upper end of the main frame or the like.

Therefore, the horizontal movement area of the transfer surface of the transfer band such as the upper end of the main frame is longer than that of the standard escalator. For this reason, when converting a standard escalator having a short horizontal moving portion at the end of the main frame into an escalator with a step for a wheelchair, a support for the end of the main frame is required to obtain a required installation space in the longitudinal direction of the main frame. There was a problem that construction was needed to increase the distance between each other.

An object of the present invention is to solve such a problem, and an object of the present invention is to provide an escalator with a step for a wheelchair which can be installed in a longitudinal space of a main frame comparable to that for a standard escalator.

[0008]

In an escalator with a step for a wheelchair according to the present invention, a conveyor band in which a large number of steps are connected endlessly and circulates and moves within an inclined main frame, and a part of this conveyor band. A plurality of wheelchair steps provided between the steps to form a wheelchair loading surface when needed; and mounted on these wheelchair steps and always held in the retired position and displaced to form a wheelchair loading surface when needed A movable mechanism to be moved, and a transfer surface horizontal movement area of the transfer band which is arranged near the entrance / exit on the upper end side of the main frame on the transfer surface of the transfer band and formed shorter than a horizontal plane along the length of the main frame of the wheelchair loading surface. When,
Equipped at the upper end of the main frame, it is always held at a position that does not engage with the movable mechanism of the wheelchair step, moves when necessary, and moves the wheelchair step in the horizontal movement area of the transport band at the upper end of the main frame. A mechanism for engaging the mechanism and operating the movable mechanism of the wheelchair step.

In the escalator with a step for a wheelchair according to the present invention, a control device is provided for moving the transport band at a low speed when the movable mechanism of the step for the wheelchair is operated by engagement with the in-process device.

In the escalator with steps for a wheelchair according to the present invention, there is provided a connecting arm movable mechanism comprising a connecting arm projecting and displacing to a lower end side of the main frame, and a step for a first wheelchair forming a wheelchair loading surface. A second wheelchair step provided with a rising stepping plate movable mechanism comprising a rising stepping plate which is disposed at the lower end side of the main frame of the first wheelchair step and is supported by a protruding connecting arm movable mechanism to form a wheelchair loading surface; And an inclined wheelchair step provided with an inclined stepboard movable mechanism comprising an inclined stepboard which is disposed on the upper end side of the main frame of the first wheelchair step and whose lower end side is inclined downward when necessary.

In the escalator with a step for a wheelchair according to the present invention, there is provided a connecting arm movable mechanism comprising a connecting arm projecting and displacing toward a lower end of the main frame, and a step for a first wheelchair forming a wheelchair loading surface. An intermediate lifting step plate mechanism comprising a rising step plate supported by a protruding connecting arm movable mechanism disposed at the lower end side of the main frame of the first wheelchair step and an intermediate step comprising a connecting arm projecting to the lower end side of the main frame. An intermediate wheelchair step provided with a connecting arm movable mechanism to form a wheelchair loading surface, and an ascending tread plate supported by the protruding intermediate connecting arm movable mechanism disposed at the lower end of the main frame of the intermediate wheelchair step. A second wheelchair step that forms a wheelchair loading surface with a lifting step plate movable mechanism is provided.

In the escalator with steps for a wheelchair according to the present invention, the in-process device is installed at a position corresponding to the lower surface of the floor plate at the entrance / exit of the upper end of the main frame, and the mechanism for moving the steps for the wheel chair by the in-process device on the lower surface of the floor plate. Is provided with a control device for retreating and protruding.

In the escalator with a step for a wheelchair according to the present invention, the step for the first wheelchair and the step for the second wheelchair form a wheelchair loading surface near the entrance to the upper end side of the main frame, and the step for the inclined wheelchair. A control device is provided for stopping the transport band in a state in which a part of the upper end side of the main frame of the inclined tread movable mechanism is disposed at a position corresponding to the lower surface of the floor plate at the entrance / exit of the main frame upper side.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 12
FIG. 1 is a view showing an example of an embodiment of the present invention. FIG. 1 is a conceptual side view of an escalator with a step for a wheelchair, FIG. 2 is an enlarged view of a main part of FIG. FIG. 4 is a diagram illustrating a first situation of wheelchair transport on the lower end side of the frame, FIG. 4 is a diagram illustrating a second situation of wheelchair transport in FIG. 3,
FIG. 5 is a view for explaining a third situation of the wheelchair transfer in FIG. 3, and FIG. 6 is a view for explaining a fourth situation of the wheelchair transfer in FIG.

FIG. 7 is a view for explaining a fifth situation of wheelchair transfer in FIG. 3, FIG. 8 is a view for explaining a sixth situation of wheelchair transfer in FIG. 3, and FIG. 9 is a wheelchair on the upper end side of the main frame of FIG. FIG. 10 illustrates the first situation of the wheelchair transport in FIG. 9, FIG. 10 illustrates the third situation of the wheelchair transport in FIG. 9, and FIG. 12 illustrates the third situation of the wheelchair transport in FIG. 9. It is a figure explaining the 4th situation of wheelchair conveyance.

In FIG. 1, reference numeral 1 denotes a main frame of an escalator disposed at an angle, 2 denotes a lower end of the main frame 1, 3 denotes an upper end of the main frame 1, and 4 denotes a lower end and an upper end 3 of the main frame 1, respectively. The entrance / exit 5 is a comb provided at the entrance / exit 4 and arranged on the longitudinal middle side of the main frame 1, and 6 is a transport band in which a large number of steps 7 are connected endlessly to circulate and move the main frame 1. is there.

Numeral 8 denotes a lower upper in-progress device provided in the main frame 1 and disposed near the lower end 2, and is constituted by a crank mechanism driven by an electric motor, and is operated by an elevating device 9,
A first drive mechanism 11 is provided in the elevating device 9 and is arranged parallel to the length of the main frame 1 and forms an engagement mechanism with a roller chain 10 driven by an electric motor.

The lower upper in-process device 8 engages with a first wheelchair step described later and retreats a later-described connecting arm of the first wheelchair step during projecting and descending operation during ascending operation. For this function, a single roller chain 10 is provided.

Numeral 12 denotes a lower lower work device which is provided in the main frame 1 and is located closer to the lower end 2 and is provided closer to the lower end 2 of the main frame 1 than the lower upper work device 8 is driven by an electric motor. An elevating device 9 configured and operated by a crank mechanism, and a second driving mechanism 13 provided in the elevating device 9 and arranged in parallel with the length of the main frame 1 and forming an engagement mechanism by a roller chain 10 driven by an electric motor. It is configured.

The lower lower device 12 is engaged with a step for a wheelchair and a step for a second wheelchair, which will be described later, and holds the horizontal posture holding mechanism of the step for a wheelchair at the time of ascending operation and at the time of releasing and descending operation. In addition, during the ascent operation, the up / down movement holding mechanism of the ascent step plate of the second wheelchair step, which will be described later, is released.
It is held during the descent operation, and the boarding stand is protruded during the ascent / descent operation and retired during the ascent / descent operation. In addition, the vehicle stopping piece is extended during the ascent operation and retired during the descent operation. Therefore, one roller chain 10 is required for each function, and although not shown, four roller chains 10 are provided.

Reference numeral 801 denotes an upper-side in-progress device provided in the main frame 1 and disposed near the upper end 3 and provided in the elevating device 9 and the elevating device 9 which are configured and operated by a crank mechanism driven by an electric motor. The first drive mechanism 11 is configured in parallel with the length of the main frame 1 and has an engagement mechanism formed by a roller chain 10 driven by an electric motor.

The upper upper in-process device 801 is engaged with a step for a wheelchair and a step for a first wheelchair, which will be described later.
Hold during ascent operation. Further, a connecting arm, which will be described later, of the first wheelchair step is protruded during the descending operation, and retreats during the ascending operation. For this reason, since one roller chain 10 is required for each function, two roller chains 10 are provided although not shown.

Numeral 1201 denotes an upper lower device which is provided in the main frame 1 and located closer to the upper end 3 and closer to the lower end 2 of the main frame 1 than the upper upper device 801. The crank driven by an electric motor is provided. A lifting and lowering device 9 configured and operated by a mechanism, and a roller chain 1 provided in the lifting and lowering device 9 and arranged in parallel with the length of the main frame 1 and driven by an electric motor
The second drive mechanism 13 is formed by an engagement mechanism formed by the zero.

Note that the upper and lower in-process device 1201 engages with a second wheelchair step described later, and holds a vertical stepping and holding mechanism for a later described stepping plate of the second wheelchair step during a descending operation and holds it during a lifting operation. In addition, the vehicle stop pieces protrude during the descending operation and retreat during the ascending operation. For this reason, since one roller chain 10 is required for each function, two roller chains 10 are provided although not shown.

Reference numeral 14 denotes a step for a wheelchair, which forms a part of the transporting band 6 and is disposed between the steps 7, and includes an inclined stepping plate movable mechanism 15 comprising an inclined stepping plate whose lower end 2 is inclined downward when necessary. Inclination roller 1 pivotally attached to inclined tread plate movable mechanism 15 and supported on inclination rail 16 provided on main frame 1
7 and a forward pinion 18 which engages with the lower lower device 12 on the lower end 2 of the main frame 1 when the wheelchair is transported, and a reverse pinion which engages with the upper upper device 801 on the upper end 3 of the main frame 1 when transporting the wheelchair. 19 are provided.

Numeral 20 denotes a first wheelchair step which is a part of the transport belt 6 and is arranged between the steps 7, and which is constituted by a gear mechanism and which is raised when necessary.
A reciprocating mechanism 21 is provided which is driven by being engaged with, etc., and is provided with a connecting arm movable mechanism 22 comprising a connecting arm projecting and displacing toward the lower end side of the main frame 1 via the rack mechanism by the reciprocating mechanism 21. The stepped wheelchair steps 14 are disposed on the lower end 2 side of the main frame 1.

Numeral 23 designates a part of the transport belt 6 and is provided between the steps 7 so that the lower end 2 of the main frame 1 of the first wheelchair step 20 is provided.
The second wheelchair step 24 arranged on the side is a lifting step moving mechanism comprising a lifting step provided on the second wheelchair step 23, and is operated by the lifting device 9 of the lower lower device 12 for the second wheelchair. The step 23 is displaced from the base to the raised position. Note that the raised stepping plate movable mechanism 24 that has risen is supported by the connecting arm movable mechanism 22 of the first wheelchair step 20 projecting and fitting into a support hole 25 provided in the rising stepping plate movable mechanism 24. It is arranged at the position of the tread surface of the step 20 for one wheelchair.

Numeral 26 denotes a car stop piece movable mechanism comprising a car stop piece provided on the lower end 2 side of the main frame 1 of the ascending tread plate 24, and a rack mechanism is provided, which is normally disposed at the retracted position, and a transmission mechanism 27 comprising a gear mechanism. And the transmission mechanism 2
The second drive mechanism 13 of the lower lower in-process device 12 where 7 has risen
And driven to protrude upward.

Reference numeral 28 denotes a boarding board movable mechanism consisting of a boarding board provided on the ascending step board 24. A transmission mechanism 29 consisting of a rack mechanism is provided and is always arranged at the retreat position. It is driven by engaging with the second drive mechanism 13 and the like of the in-process device 12 and protrudes toward the lower end 2 of the main frame 1. Reference numeral 30 denotes a wheelchair.
And the second wheelchair step 23 is mounted on a wheelchair loading surface 31 formed as a main part and transported.

A control device 32 is connected to the lower upper in-process device 8, the lower and lower in-process device 12, the upper and lower in-process device 801, the upper and lower in-process device 1201, and the drive (not shown) of the escalator with steps for a wheelchair. is there. The transfer surface horizontal movement area A shown in FIG. 2 and the like is disposed on the transfer surface of the transfer band 6 near the entrance 4 on the upper end 3 side of the main frame 1 and extends along the length of the main frame 1 on the wheelchair loading surface 31. It is formed shorter than the horizontal plane length.

In the escalator with steps for a wheelchair constructed as described above, the lower upper device 8 is normally used.
As shown in FIG. 3, the lifting device 9 of the lower lower device 12 is disposed at the lower position as shown in FIG. 4, and the upper upper device 801 and the upper lower device 1201 The lifting device is also located at the lowered position. And
In this state, the first drive mechanism 11 of the lower upper in-process device 8,
The second drive mechanism 13 and the like of the lower lower in-process device 12 are similar to those shown in FIG.
As shown in FIG. 4, transmission of the forward rotation pinion 18, the reverse rotation pinion 19 of the inclined wheelchair step 14, the advance / retreat mechanism 21 of the first wheelchair step 20, and the transmission of the second wheelchair step 23 do not hit the riser such as the step 7. It is arranged at a position where it does not engage with the mechanisms 27 and 29.

The movable mechanism 15 of the inclined step board of the inclined wheelchair step 14 is held at a horizontal position with respect to the base. Then, the connecting arm movable mechanism 22 of the first wheelchair step 20 is arranged at the retreat position, and the ascending step plate movable mechanism 24 and the wheel stopper moving mechanism 26 of the second wheelchair step 23 are arranged at the descending position, respectively. The table movable mechanism 28 is held at the retired position.

In this state, the transport belt 6 is circulated in the main frame 1 and ordinary passengers are transported by the steps 7, the steps 14 for the wheelchair, the steps 20 for the first wheelchair, and the steps 23 for the second wheelchair. Note that all steps such as the first wheelchair step 20 horizontally move from the entrance 4 on the lower end 2 side during the ascending operation due to the circulating operation of the transport belt 6, and then move gradually inclining so that the inclination angle gradually increases.

Next, when the vehicle moves at a constant inclination at a constant inclination angle and approaches the entrance 4 on the upper end 3 side, the inclination angle gradually decreases and the inclination angle gradually decreases. Thereafter, it horizontally moves to the entrance 4 on the upper end 3 side and circulates. In addition, at the time of descending operation, all steps move circularly in the reverse order to the case of ascending operation.

When the wheelchair 30 is transported upward,
That is, when the wheelchair 30 is transported from the entrance 4 on the lower end 2 side to the entrance 4 on the upper end 3 side, the escalator with a wheelchair step is switched to a wheelchair transport operation by a wheelchair operation switch (not shown). As a result, the lifting device 9 of the lower lower in-process device 12 is raised by the operation of the control device 32, and the transport belt 6 is raised at a low speed.
Then, the step 14 for the inclined wheelchair is moved to the lower lower device 12.
When passing over the braked second drive mechanism 13,
As shown in FIG. 3, the forward rotation pinion 18 of the inclined wheelchair step 14 is engaged with the second drive mechanism 13 and driven.

As a result, the horizontal posture holding mechanism 15 is released from holding the horizontal posture, and the tiltable tread plate moving mechanism 15 is in a state where it can be tilted. Then
The first wheelchair step 20 moves to the gradually increasing inclined movement area and faces the lower upper device 8, and the second wheelchair step 23 is arranged in the horizontal movement area and stops at the position facing the lower lower device 12. I do.

In this state, as shown in FIG. 4, the inclined wheelchair step 14 is guided by the inclined rail 16 on the inclined wheelchair step 14, and the inclined stepboard movable mechanism 15 is inclined. Further, the first wheelchair step 20 is gradually inclined and moved to a position higher than the second wheelchair step 23. Further, in this state, the step 7 on the lower end 2 side of the main frame 1 of the step 23 for the second wheelchair has a length of approximately 3 along the moving direction from the comb 5 of the entrance 4.
0% is placed forward.

Then, the lower lower device 12 rises from the state shown in FIG. 4, and the rising step plate movable mechanism 24 of the second wheelchair step 23 is pushed up to the state shown in FIG.
It is arranged at the same height as the tread surface of the first wheelchair step 20. Although not shown, the rising stepping plate movable mechanism 24 rises via a predetermined path with respect to the base of the second wheelchair step 23, and has a constant small gap between the riser and the riser provided on the first wheelchair step 20. Is displaced in a state in which is formed.

It is to be noted that before the lower lower in-process device 12 is lifted and the lifting step movable mechanism 24 of the second wheelchair step 23 is pushed up, the lifting step movable mechanism 24 is integrated with the second wheelchair step 23. The vertical movement holding mechanism is released by the lower lower device 12.

Next, in the state shown in FIG. 5, the electric motor of the first drive mechanism 11 of the lower upper device 8 is energized, and the advance / retreat mechanism 2 of the first wheelchair step 20 engaged with the first drive mechanism 11 is engaged.
1 is driven. As a result, the connecting arm movable mechanism 22 protrudes toward the lower end 2 of the main frame 1 and fits into the support hole 25 of the second wheelchair step 23 to be in the state shown in FIG. 6 and rises with the tread surface of the first wheelchair step 20. The wheelchair loading surface 31 is formed by the upper surface of the step board movable mechanism 24.

Then, in the state shown in FIG. 6, the electric motor of the second drive mechanism 13 of the lower lower mechanism 12 is energized to drive the transmission mechanism 29 of the second wheelchair step 23. As a result, the main frame 1 on which the boarding board movable mechanism 28 protrudes and faces
It is bridged by the comb 5 on the lower end 2 side to be in the state shown in FIG.

Next, the wheelchair 30 is mounted on the formed wheelchair loading surface 31 from the entrance 4 on the lower end 2 side, and thereafter the motor of the second drive mechanism 13 of the lower lower device 12 is energized to turn on the second wheelchair. The transmission mechanism 27 of the wheelchair step 23 is driven. As a result, the wheel stop piece moving mechanism 26 projects upward and becomes the state shown in FIG. 8, and the main frame 1 of the wheelchair 30 mounted on the wheelchair loading surface 31 by the wheel stop piece moving mechanism 26.
Displacement in the lower two directions is prevented.

Then, the electric motor of the second drive mechanism 13 of the lower lower device 12 is energized to drive the transmission mechanism 29 of the second wheelchair step 23. As a result, the boarding board movable mechanism 28 retires and is stored in the ascending footboard movable mechanism 24. Next, in a state where the lower upper in-process device 8 and the lower lower in-process device 12 are lowered and separated from the transmission mechanism 27, the transport belt 6 is operated to rise at a normal speed by the control device 32.

In this way, the movable stepping plate moving mechanism 24
Then, the wheelchair loading surface 31 composed of the tread surface of the first wheelchair step 20 moves horizontally from the entrance 4 on the lower end 2 side while maintaining the horizontal posture, and then moves gradually inclining to gradually increase the inclination angle.
Next, when the vehicle approaches the entrance 4 on the upper end 3 side of the main frame 1 by a constant inclination movement at a constant inclination angle, the inclination angle gradually decreases and gradually decreases.

The inclined wheelchair steps 14 are guided by the inclined rails 16 with the inclined rollers 17 and the inclined stepboard movable mechanism 15 returns to the horizontal position and moves to the horizontal movement area. Next, the conveyor belt 6 is stopped at a position where the inclined wheelchair step 14 faces the upper upper device 801 disposed immediately below the comb 5 at the upper entrance 3 side entrance / exit 4 on the main frame 1. In this state, the wheelchair 30 descends from the wheelchair loading surface 31 to the entrance 4 on the upper end 3 side of the main frame 1.

From this state, the upper in-process device 8
As shown in FIG. 9, the lifting / lowering device 9 of FIG. 1 is brought into the state shown in FIG. 9, and the first drive mechanism 11 of the upper upper device 801 is engaged with the reverse pinion 19 of the step 14 for the inclined wheelchair. Then, the first drive mechanism 11 of the upper upper in-process device 801 operates to drive the reverse rotation pinion 19, and the inclined tread plate movable mechanism 15 is held in a horizontal posture through the operation of the reverse rotation pinion 19.
The holding of the horizontal posture holding mechanism of the inclined wheelchair steps 14 is performed in the operating state of the escalator, that is, in the moving state of the transport belt 6.

Next, the upper upper in-process device 801 descends, and the transporting band 6 moves again in the ascending operation direction at a low speed, and the ascending step plate moving mechanism 24 descends with respect to the base of the second wheelchair step 23. Then, the first wheelchair step 20 faces the upper upper device 801, and the second wheelchair step 23 moves to the transport plane horizontal movement area A near the entrance 4 on the upper end 3 side of the main frame 1 to move to the lower lower part. It stops at a position facing the side in-process device 1201. In this state, the upper upper device 801 and the lower lower device 1201 are raised, and the upper upper device 801 is moved upward.
Of the first wheelchair step 20 is engaged with the advance / retreat mechanism 21 of the first wheelchair step 20.

Further, the second driving mechanism 13 of the lower lower in-process device 1201 is engaged with the transmission mechanism 27 of the second wheelchair step 23 to be in the state shown in FIG. Next, from the state shown in FIG. 10, the advance / retreat mechanism 21 is driven by the operation of the first drive mechanism 11 of the upper upper mechanism 801, and the connecting arm movable mechanism 2
The second wheelchair step 20 and the second wheelchair step 23 are disengaged from each other, and the state shown in FIG. 11 is obtained.

The transmission mechanism 27 is driven by the operation of the second drive mechanism 13 of the lower lower in-process device 1201, and the vehicle stop piece movable mechanism 26 is retired. Then, the lower lower device 1201 is lowered to the state shown in FIG. 12, and the upper upper device 801 is lowered from this state, and the escalator with a wheelchair step returns to normal operation. Before the lower lower in-process device 1201 descends, the lower and lower in-process device 1201 holds an up-down movement holding mechanism that integrates the lifting step plate movable mechanism 24 with the second wheelchair step 23.

The case where the wheelchair 30 is transported upward from the entrance 4 at the lower end 2 of the main frame 1 to the entrance 4 at the upper end 3 has been described above. On the other hand, the wheelchair 30 is moved to the main frame 1
When transporting downward from the entrance 4 on the upper end 3 side to the entrance 4 on the lower end 2 side, the related devices such as the upper upper device 801 and the lower lower device 1201 are moved in reverse to the upward transport of the wheelchair 30. Make it work. Thus, although the detailed description is omitted, it is possible to obtain the same operation as that when the wheelchair 30 is transported upward.

As described above, at the entrance 3 on the upper end 3 side of the main frame 1, the movable mechanism 15 for the inclined tread plate of the inclined wheelchair step 14 is held in a horizontal posture by the upper upper in-progress device 801 disposed immediately below the comb 5. Is done. Next, the first wheelchair step 20 and the second wheelchair step 23 move to the transport plane horizontal movement area A near the entrance 4 on the upper end 3 side of the main frame 1, and the upper upper device 801 and the lower lower device 801. By the operation of 1201, the respective connecting arm movable mechanisms 22 and the vehicle stop piece movable mechanisms 26 are retired.

The wheelchair loading surface 31 is located at the upper end 3 of the main frame 1.
Main frame 1 of wheelchair loading surface 31 formed near side entrance 4
Transfer area horizontal movement area A shorter than the horizontal plane length along the length of
Formed. As a result, the transport surface horizontal movement area of the transport band at the upper end of the main frame 1 can be set to a length comparable to a standard escalator. Therefore, a standard escalator having a short horizontal moving portion at the end of the main frame 1 can be easily converted into an escalator with a step for a wheelchair without the need to construct a space between supports at the end of the main frame 1. .

Also, in the embodiment shown in FIGS. 1 to 12, the inclined step board movable mechanism of the inclined wheelchair step 14 driven by the control device 32 being engaged with the lower upper work device 8 and the wheel stopper moving mechanism 26. Also at the time of the operation 15, the transport belt 6 moves at a low speed, so that the wheelchair transport operation can be streamlined.

Embodiment 2 13 to 23 are views showing an example of another embodiment of the present invention. FIG. 13 is a conceptual side view of an escalator with a step for a wheelchair, and FIG. 14 is an enlarged view of a main part of FIG. FIG. 13 and FIG.
16 illustrates a first situation of wheelchair transport at the lower end side of the main frame, FIG. 16 illustrates a second situation of wheelchair transport in FIG. 15, and FIG. 17 illustrates a third situation of wheelchair transport in FIG. FIG. 18 is a view for explaining the fourth situation of the wheelchair transfer in FIG.

FIG. 19 is a view for explaining the first situation of wheelchair transfer at the upper end side of the main frame of FIG. 13, FIG. 20 is a view for explaining the second situation of wheelchair transfer in FIG. 19, and FIG.
9 illustrates the third situation of wheelchair transfer in FIG.
Is a diagram illustrating a fourth situation of wheelchair transport in FIG. 19,
FIG. 23 is a view for explaining the fifth situation of the wheelchair transfer in FIG.

In the figure, the same reference numerals as those in FIGS. 1 to 12 denote the corresponding parts, and reference numeral 80 denotes a lower work-in-progress device, which is provided in the main frame 1 and is disposed closer to the comb 5 on the lower end 2 side. Reference numeral 81 denotes an upper device, which is provided in the main frame 1 and has a comb 5 on the upper end 3 side.
It is located below. Reference numeral 200 denotes an intermediate wheelchair step which forms a part of the transport belt 6, which is disposed between the first wheelchair step 20 and the second wheelchair step 23, and which is constituted by a gear mechanism and which drives the lower mechanism 80 raised when necessary. An advance / retreat mechanism 210 which is driven by being engaged with the mechanism 11 or the like is provided, and the intermediate connection arm movable mechanism 2 including a connection arm projecting to the lower end side of the main frame 1 via the rack mechanism by the advance / retreat mechanism 210.
20 are equipped.

Reference numeral 240 denotes an intermediate lifting step mechanism comprising a lifting step provided on the intermediate wheelchair step 200, and a connecting arm movable mechanism 22 of the first wheelchair step 20 in a support hole 25 provided in the intermediate wheel stepping mechanism 240. Are supported by projecting and fitting, and are arranged at the position of the tread plate surface of the first wheelchair step 20.

Further, the intermediate connecting arm movable mechanism 220 is operated by the drive mechanism 11 of the lower mechanism 80 and the like.
10, and is fitted in the support hole 25 of the rising step board moving mechanism 24 of the second wheelchair step 23, and holds the tread surface of the rising step board moving mechanism 24 at the position of the tread surface of the intermediate rising step board mechanism 240. Reference numeral 310 denotes a wheelchair loading surface, which is formed by the steps 20 for the first wheelchair, the steps 200 for the intermediate wheelchair, and the steps 23 for the second wheelchair.

In the escalator with a step for a wheelchair constructed as described above, the lower device 80 is normally used.
The elevating device 9 of the upper in-process device 81 is disposed at the lowered position. In this state, the drive mechanism 11 and the like of the lower in-process device 80 do not hit the riser of the step 7 and the like, and are disposed at positions where they do not engage with the forward rotation pinion 18 and the reverse rotation pinion 19 of the first wheelchair step 20 and the like. Is done.

The connecting arm moving mechanism 22 of the first wheelchair step 20, the intermediate connecting arm moving mechanism 220 of the intermediate wheelchair step 200, and the wheel stopper moving mechanism 26 of the second wheelchair step 23 are respectively disposed at the retreat positions. You. Further, the intermediate lifting step plate mechanism 240 of the intermediate wheelchair step 200 and the lifting step plate movable mechanism 24 of the second wheelchair step 23 are respectively arranged at the descending positions.

In this state, the transport belt 6 is circulated in the main frame 1 and ordinary passengers are transported by the steps 7, the first wheelchair steps 20, the intermediate wheelchair steps 200, and the second wheelchair steps 23. Note that all steps such as the first wheelchair step 20 are moved to the lower end 2 by the circulation operation of the transport belt 6 in the case of the ascending operation.
The vehicle moves horizontally from the entrance 4 on the side of the vehicle, and then moves gradually inclining so that the inclination angle gradually increases.

Next, when the vehicle moves at a constant inclination at a constant inclination angle and approaches the entrance 4 at the upper end 3 side, the inclination angle gradually decreases and the inclination angle gradually decreases. Thereafter, it horizontally moves to the entrance 4 on the upper end 3 side and circulates. In addition, at the time of descending operation, all steps move circularly in the reverse order to the case of ascending operation.

When the wheelchair 30 is transported upward,
That is, when the wheelchair 30 is transported from the entrance 4 on the lower end 2 side to the entrance 4 on the upper end 3 side, the escalator with a wheelchair step is switched to a wheelchair transport operation by a wheelchair operation switch (not shown). Accordingly, the operation of the control device 32 causes the transport belt 6 to be driven at a low speed in the upward transport direction in a state where the first wheelchair step 20 corresponds to the lower side of the comb 5 on the lower end 2 of the main frame 1. The control device 32
With the operation described above, the lifting device 9 of the lower in-process device 80 is raised, and the driving mechanism 11 is braked.

Then, the first wheelchair step 2 that moves at a low speed
The forward rotation pinion 18 provided in the zero advance / retreat mechanism 21 is driven by engaging with the drive mechanism 11 of the lower in-process device 80.
As a result, the connecting arm movable mechanism 22 protrudes toward the lower end 2 of the main frame 1 and fits into the support hole 25 of the intermediate wheelchair step 200 to be in the state shown in FIG.

Further, the forward rotation pinion 18 provided in the advance / retreat mechanism 210 of the intermediate wheelchair step 200 is driven by engaging with the drive mechanism 11 of the lower in-process device 80 by the operation of the transport belt 6 in the low-speed ascending transport direction. . As a result, the intermediate connecting arm movable mechanism 220 protrudes toward the lower end 2 of the main frame 1 and fits into the support hole 25 of the second wheelchair step 23 to be in the state shown in FIG. Note that the intermediate connecting arm movable mechanism 220 is connected to the lower end 2 of the main frame 1.
At the same time as projecting to the side, the vertical movement holding mechanism (not shown) integrating the intermediate lifting step plate mechanism 240 with the intermediate wheelchair step 200 is released by the lower mechanism 80.

Next, the transporting belt 6 is further driven in the ascending transporting direction at a low speed, and the car stop piece movable mechanism 26 of the second wheelchair step 23 is moved from the comb 5 at the lower end 2 of the main frame 1 to the intermediate side of the main frame 1. In the exposed state, the transport band 6 is stopped and arranged as shown in FIG. In the state shown in FIG. 17, the first wheelchair step 20, the intermediate lifting step mechanism 240 of the intermediate wheelchair step 200, and the lifting step movable mechanism 24 of the second wheelchair step 23 are connected to the connecting arm of the first wheelchair step 20. The movable mechanism 22 and the intermediate connecting arm movable mechanism 220 of the intermediate wheelchair step 200 are connected.

Thus, the wheelchair loading surface 310 is formed by the first wheelchair steps 20, the intermediate wheelchair steps 200, and the second wheelchair steps 23. Then, in a state shown in FIG. 17, the wheelchair 30 is mounted on the wheelchair loading surface 310 on which the wheelchair 30 is formed from the entrance 4 on the lower end 2 side. Next, the transport belt 6 is driven in the upward transport direction to move the second wheelchair step 23, whereby the forward rotation pinion 18 provided in the transmission mechanism 27 of the second wheelchair step 23 is driven by the drive mechanism of the lower mechanism 80. 11 and driven.

As a result, the car stop piece movable mechanism 26 of the second wheelchair step 23 projects upward to the state shown in FIG.
The displacement of the wheelchair 30 mounted on the main frame 1 in the direction of the lower end 2 of the main frame 1 is prevented. Next, the lower in-process device 80 is lowered, and the transport belt 6 is driven in the upward transport direction at the normal speed.

When the first wheelchair step 20 is gradually inclined and moved at a constant inclination, the wheelchair loading surface is operated by the connecting arm movable mechanism 22 of the first wheelchair step 20 and the intermediate connecting arm movable mechanism 220 of the intermediate wheelchair step 200. 310 is maintained and moves in the ascending transport direction. At the same time as the vehicle stop piece movable mechanism 26 projects upward,
The vertical movement holding mechanism (not shown) integrating the step 4 with the second wheelchair step 23 is released by the lower mechanism 80.

Next, the first wheelchair steps 20 and the like are connected to the main frame 1
When approaching the entrance 4 on the upper end 3 side, the inclination angle gradually decreases and gradually moves to the horizontal movement area on the upper end 3 side of the main frame 1,
Further, the drive mechanism 11 of the upper in-process device 81 is raised and
The state shown in FIG. And the main frame 1 upper end 3 side entrance 4
The transport belt 6 is stopped in a state where the first wheelchair step 20 faces the upper mechanism device 81 arranged immediately below the comb 5.

Thus, the wheelchair 30 is moved from the wheelchair loading surface 310 to the entrance 4 on the upper end 3 side of the main frame 1 in the state shown in FIG.
Get down. Next, by the operation of the control device 32, the transport belt 6 is driven at a low speed in the upward transport direction, and the reverse pinion 19 provided in the advance / retreat mechanism 21 of the moving first wheelchair step 20 moves up the upper in-process device 81. The state shown in FIG. 20 is brought into engagement with the braked drive mechanism 11. Then, the advance / retreat mechanism 21 is driven by the low-speed movement of the transport band 6 in the upward transport direction, and the connecting arm movable mechanism 22 is retracted into the first wheelchair step 20 to be in the state shown in FIG.

As a result, the coupling of the intermediate lifting step plate mechanism 240 of the intermediate wheelchair step 200 by the connecting arm movable mechanism 22 is released. Then, the transport belt 6 is further driven in the ascending transport direction at a low speed, and the moving intermediate wheelchair step 20 is moved.
The reverse rotation pinion 19 provided in the 0 advance / retreat mechanism 210
The upper mechanism 81 is engaged with the drive mechanism 11 that has been lifted and braked.

Then, in the state shown in FIG. 21, the transporting belt 6 moves at a low speed in the upward transport direction, and the advance / retreat mechanism 210 is moved.
Is driven, and the intermediate connecting arm movable mechanism 220 is retired into the intermediate wheelchair step 200. At the same time as the intermediate connecting arm movable mechanism 220 is retired into the intermediate wheelchair step 200, the rising step plate movable mechanism 24 is moved to the intermediate wheelchair step 200.
The vertical movement holding mechanism (not shown) integrated with the device is released by the lower mechanism 80.

Then, the transport belt 6 is further driven in the ascending transport direction at a low speed, and the reverse pinion 19 provided in the transmission mechanism 27 of the moving second wheelchair step 23 is raised by the upper in-process device 81 to brake. In the state shown in FIG. 22, the transmission mechanism 27 is driven by the movement of the transport band 6 in the upward transport direction, and the wheel stopper moving mechanism 26 is retracted into the step 23 for the second wheelchair. The state shown in FIG. 23 is obtained. In addition, at the same time as the wheel stopper moving mechanism 26 is retracted into the second wheelchair step 23, a vertical movement holding mechanism (not shown) integrating the rising step plate moving mechanism 24 with the second wheelchair step 23 is moved to the lower mechanism 80. Is canceled by.

Next, the drive mechanism 11 of the upper in-process device 81
Descends and the escalator with wheelchair steps returns to normal operation. The case where the wheelchair 30 is transported upward from the entrance 4 at the lower end 2 of the main frame 1 to the entrance 4 at the upper end 3 has been described above. On the other hand, when the wheelchair 30 is conveyed downward from the entrance 4 at the upper end 3 of the main frame 1 to the entrance 4 at the lower end 2, related devices such as the lower device 80 are moved to the wheelchair 3.
The operation is performed in a direction opposite to that at the time of ascending conveyance of 0. In this way,
Although detailed description is omitted, the same operation as that when the wheelchair 30 is transported upward can be obtained.

As described above, at the entrance 3 on the upper end 3 side of the main frame 1, the upper belt device 81 arranged immediately below the comb 5 by the movement of the transport belt 6 in the upward transport direction moves the step 20 of the first wheelchair 20. The connecting arm movable mechanism 22 is retired, and then the intermediate connecting arm movable mechanism 220 of the intermediate wheelchair step 200 is used.
Retires and the connection of the wheelchair loading surface 310 is released. After that, the upper stopper device 81 controls the vehicle stopper moving mechanism 26.
Retires into the second wheelchair step 23.

The uncoupling operation of the wheelchair loading surface 310 and the retraction operation of the wheel stopper moving mechanism 26 of the second wheelchair step 23 are performed by the wheelchair loading surface 310 formed near the upper end 3 of the main frame 1 and the entrance 4. This is performed in the transport surface horizontal movement area A shorter than the horizontal plane length along the length of the main frame 1. Therefore, the horizontal movement area of the transport band at the upper end of the main frame 1 can be set to a length comparable to a standard escalator. This makes it possible to easily convert a standard escalator having a short horizontal movement portion at the end of the main frame 1 into an escalator with a step for wheelchairs without requiring a work for widening the interval between supports at the end of the main frame 1. it can.

In the embodiment shown in FIGS. 13 to 23, the connecting arm movable mechanism 22 and the intermediate wheelchair step of the first wheelchair step 20 driven by the control device 23 being engaged with the lower mechanism 80. Also during the operation of the intermediate connecting arm movable mechanism 220 of 200, etc., the transport belt 6 moves at a low speed, so that the wheelchair transport operation can be streamlined.

[0079]

As described above, according to the present invention, a plurality of steps are connected endlessly to circulate in a slanted main frame, and a part of the transfer band is provided between the steps. A plurality of wheelchair steps which are formed when necessary to form a wheelchair loading surface, a movable mechanism which is mounted on these wheelchair steps and which is always held in the retired position and is displaced to form a wheelchair loading surface when needed, and a transport belt. The transfer surface horizontal movement area of the transfer band, which is arranged closer to the entrance / exit at the upper end side of the main frame on the transfer surface and is formed shorter than the horizontal length along the length of the main frame of the wheelchair loading surface, and the upper end of the main frame And is always held at a position that does not engage with the movable mechanism of the wheelchair step, moves when necessary, and engages with the movable mechanism of the wheelchair step in the horizontal movement area of the transport band at the upper end of the main frame. Device for operating the movable mechanism of the wheelchair steps In which the provided.

Thus, the wheelchair loading surface formed by the plurality of wheelchair steps is arranged shorter than the horizontal plane length along the longitudinal direction of the main frame, which is arranged near the entrance / exit on the upper end side of the main frame on the transporting surface of the transporting belt. The movable mechanism of the wheelchair step forming the wheelchair loading surface is retired by the in-process device in the horizontal movement area of the transport surface of the transported belt. Then, by reducing the horizontal movement area of the transfer surface of the transfer band at the upper end of the main frame, the escalator with steps for wheelchairs can be installed without particularly widening the interval between supports at the ends of the main frame. This has the effect of facilitating installation.

Further, as described above, the present invention is provided with the control device for moving the transport band at a low speed when the movable mechanism of the wheelchair step is operated by engagement with the in-process device.

As a result, the transport belt moves even when the movable mechanism of the wheelchair step is operated, so that there is an effect that the wheelchair transport operation is streamlined.

Further, as described above, the present invention provides a first wheelchair step having a connecting arm movable mechanism comprising a connecting arm projecting toward the lower end of the main frame to form a wheelchair loading surface. A second wheelchair step provided with an ascending stepping plate movable mechanism comprising an ascending stepping plate which is disposed at the lower end side of the main frame of the one wheelchair step and supported by the protruding connecting arm movable mechanism and forms a wheelchair loading surface; An inclined wheelchair step provided with an inclined stepboard movable mechanism that is arranged on the upper end side of the main frame of the one wheelchair step and the lower end of the main frame inclines downward when necessary.

[0094] With this arrangement, the wheelchair is disposed near the entrance on the upper end side of the main frame on the conveying surface of the conveying belt, and extends along the length of the main frame of the wheelchair loading surface formed by the first wheelchair step and the second wheelchair step. The movable mechanism of the wheelchair step forming the wheelchair loading surface is retired by the in-process device in the horizontal movement area of the transport surface of the transport belt shorter than the horizontal plane length. And
By shortening the horizontal movement area of the transfer surface of the transfer band at the upper end of the main frame, it is possible to install an escalator with steps for wheelchairs without particularly widening the interval between supports at the ends of the main frame. This has the effect of facilitating.

Also, as described above, the present invention provides a first wheelchair step having a connecting arm movable mechanism comprising a connecting arm projecting toward the lower end of the main frame to form a wheelchair loading surface; An intermediate ascending step plate mechanism comprising a rising step plate supported by a protruding connecting arm movable mechanism disposed at a lower end side of a main frame of a wheelchair step and an intermediate connecting arm movable comprising a connecting arm projecting and displacing to a lower end side of the main frame. A climbing stepping plate movable comprising a step for an intermediate wheelchair provided with a mechanism and forming a wheelchair loading surface, and a stepping plate disposed on the lower end side of the main frame of the stepping wheel for intermediate wheelchair and supported by a protruding intermediate connecting arm movable mechanism. A second wheelchair step provided with a mechanism to form a wheelchair loading surface.

[0086] Thus, the main frame of the wheelchair loading surface, which is disposed near the upper end side entrance / exit of the main frame on the conveying surface of the conveying belt and formed by the first wheelchair step, the intermediate wheelchair step and the second wheelchair step, is formed. The movable mechanism of the wheelchair step forming the wheelchair loading surface is retired by the in-process device in the horizontal movement area of the transport surface of the transport belt shorter than the horizontal length along the length. By reducing the horizontal movement area of the transfer surface of the transfer band at the upper end of the main frame, an escalator with a step for a wheelchair can be installed without particularly widening the interval between supports at the end of the main frame. This has the effect of facilitating installation.

As described above, according to the present invention, the in-process device is installed at a position corresponding to the lower surface of the floor plate at the upper end side entrance of the main frame, and the movable mechanism of the wheelchair step is retired by the in-process device on the lower surface of the floor plate. A control device for performing the projecting operation is provided.

Thus, the wheelchair loading surface formed by the plurality of wheelchair steps is arranged to be shorter than the horizontal length along the longitudinal direction of the main frame, which is located near the entrance of the upper edge of the main frame on the transport surface of the transport belt. The movable mechanism of the wheelchair step forming the wheelchair loading surface is retired by the in-process device installed at a position corresponding to the lower surface of the floor plate at the entrance / exit side of the upper end of the main frame in the horizontal movement region of the transport surface of the transport belt. And since the horizontal movement area of the transfer surface of the transfer band at the upper end of the main frame is further shortened, the escalator with a step for a wheelchair can be installed without particularly widening the interval between supports at the end of the main frame. This has the effect of facilitating installation.

As described above, according to the present invention, the wheelchair loading surface is formed near the entrance / exit of the upper end of the main frame by the steps for the first wheelchair and the steps for the second wheelchair. A control device for stopping the transport band is provided in a state in which a part of the upper end of the main frame of the mechanism corresponds to the lower surface of the floor plate at the entrance / exit of the upper end of the main frame.

Thus, the upper part of the main frame near the entrance is formed of a wheelchair loading surface formed by the first wheelchair step and the second wheelchair step, and a part of the inclined stepboard movable mechanism exposed from the floor plate at the entrance. A wheelchair can be put on and off a plane. For this reason, there is an effect that a space for getting on and off the wheelchair can be given and the getting on and off of the wheelchair is facilitated.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention, and is a conceptual side view of an escalator with steps for a wheelchair.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a view for explaining a first situation of wheelchair transport at the lower end side of the main frame in FIG. 1;

FIG. 4 is a view for explaining a second situation of the wheelchair transfer in FIG. 3;

FIG. 5 is a view for explaining a third situation of the wheelchair transfer in FIG. 3;

FIG. 6 is a view for explaining a fourth situation of the wheelchair transfer in FIG. 3;

FIG. 7 is a view for explaining a fifth situation of the wheelchair transfer in FIG. 3;

FIG. 8 is a view for explaining a sixth situation of the wheelchair transfer in FIG. 3;

FIG. 9 is a view for explaining a first situation of wheelchair transfer on the upper end side of the main frame in FIG. 1;

FIG. 10 is a view for explaining a second situation of the wheelchair transfer in FIG. 9;

FIG. 11 is a view for explaining a third situation of the wheelchair transfer in FIG. 9;

FIG. 12 is a view for explaining a fourth situation of the wheelchair transfer in FIG. 9;

FIG. 13 shows the second embodiment of the present invention, and is a conceptual side view of an escalator with a step for a wheelchair.

FIG. 14 is an enlarged view of a main part of FIG. 13 showing a wheelchair transfer situation.

FIG. 15 is a diagram illustrating a first situation of wheelchair transport on the lower end side of the main frame in FIG. 13;

16 is a diagram illustrating a second situation of the wheelchair transfer in FIG.

17 is a diagram illustrating a third situation of the wheelchair transfer in FIG.

18 is a diagram illustrating a fourth situation of the wheelchair transfer in FIG.

FIG. 19 is a view for explaining a first situation of wheelchair transfer on the upper end side of the main frame in FIG. 13;

20 is a diagram illustrating a second situation of the wheelchair transfer in FIG.

FIG. 21 is a view for explaining a third situation of the wheelchair transfer in FIG. 19;

FIG. 22 is a view for explaining a fourth situation of wheelchair transfer in FIG. 19;

FIG. 23 is a view for explaining a fifth situation of the wheelchair transfer in FIG. 19;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main frame, 3 upper end, 4 entrance / exit, 6 conveyance belt, 7 steps, 8 lower upper device, 801 upper upper device, 12 lower lower device, 1201 upper lower device, 14 steps for inclined wheelchair, 15 movable mechanism for inclined treads, 20 steps for the first wheelchair, 22 movable mechanism for connecting arms,
23 steps for the second wheelchair, 24 ascending steps movable mechanism,
26 Car stop piece movable mechanism, 28 Boarding board movable mechanism,
Reference Signs List 80 lower device, 81 upper device, 200 step for intermediate wheelchair, 220 intermediate connecting arm movable mechanism, 240
Intermediate lifting step mechanism, 31 Wheelchair loading surface, 310
Wheelchair loading surface, 32 controllers, A transport surface horizontal movement area.

Claims (6)

[Claims] 1. A transport belt circulating in an inclined main frame in which a number of steps are connected endlessly, and a part of the transport band is provided between the steps so that a wheelchair loading surface is provided when necessary. A plurality of wheelchair steps to be formed, a movable mechanism mounted on these wheelchair steps, always held at the retired position, and displaced for forming the wheelchair loading surface when necessary, and a main mechanism on the conveyance surface of the conveyance band. A transfer surface horizontal movement area of the transfer band, which is arranged near the entrance on the upper end side of the frame and formed shorter than a horizontal length of the wheelchair loading surface along the length of the main frame, and at an upper end of the main frame. Equipped with a position that does not normally engage with the wheelchair step movable mechanism, moves when necessary, and engages with the wheelchair step movable mechanism in the horizontal movement area of the transport band at the upper end of the main frame. Move the wheelchair step moving mechanism An escalator with steps for wheelchairs, including a mechanism to make it work. 2. The escalator with a step for a wheelchair according to claim 1, further comprising a control device for moving the transport band at a low speed when the movable mechanism of the step for the wheelchair is operated by engagement with the in-process device. 3. A first wheelchair step having a connecting arm movable mechanism comprising a connecting arm projecting and displacing to a lower end side of the main frame to form a wheelchair loading surface, and a first wheelchair step of the main frame of the first wheelchair step. A second wheelchair step forming the wheelchair loading surface provided with an ascending step plate movable mechanism comprising an ascending step plate supported by the connecting arm movable mechanism protruding at the lower end side, and the first wheelchair step; An inclined wheelchair step provided with an inclined stepboard movable mechanism comprising an inclined stepboard which is disposed at an upper end side of the main frame and the lower end side of the main frame is inclined downward when necessary. The escalator with steps for a wheelchair according to claim 2. 4. A first wheelchair step provided with a connecting arm movable mechanism comprising a connecting arm projecting and displacing to a lower end side of the main frame to form a wheelchair loading surface, and a step of the main frame of the first wheelchair step. An intermediate ascent step plate mechanism comprising an ascending tread plate supported by the connecting arm movable mechanism protruding at the lower end side and an intermediate connecting arm movable mechanism comprising a connecting arm projecting and displacing to the lower end side of the main frame; An intermediate wheelchair step forming a wheelchair loading surface, and an ascending stepping plate movable mechanism comprising an ascending stepping plate disposed at a lower end side of the main frame of the intermediate wheelchair step and supported by the protruding intermediate connecting arm movable mechanism are provided. The escalator with a wheelchair step according to any one of claims 1 and 2, further comprising a second wheelchair step formed to form the wheelchair loading surface. 5. A control device for installing a work-in-progress device at a position corresponding to a lower surface of a floor plate at an entrance on the upper side of a main frame, and for retreating and projecting a movable mechanism of a wheelchair step by the work-in-progress device on the lower surface of the floor plate. The escalator with steps for a wheelchair according to claim 1, wherein 6. The step for a first wheelchair and the step for a second wheelchair form a wheelchair loading surface near the upper end side entrance / exit of the main frame, and a part of the upper end side of the inclined stepboard movable mechanism of the inclined wheelchair step is formed. 4. The escalator with a step for a wheelchair according to claim 3, further comprising a control device for stopping the transporting band in a state where the transporting band is arranged at a position corresponding to the lower surface of the floor plate at the upper end side entrance / exit.