JPH0840680A - Escalator device - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to pull back a car stop without stopping movement of steps at an exit, and
An object of the present invention is to provide an escalator device capable of safely transporting a wheelchair without significantly lowering service for general passengers. [Structure] An escalator device configured to form a wheelchair mounting surface between a plurality of endlessly connected steps 2 during wheelchair transportation operation, and to project the car stopper 13 from the wheelchair mounting surface, On the entrance side, the power of the driving machine is transmitted to make it project, and on the exit side, it is pulled back by using the relative movement force between the step and the fixed portion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator device capable of carrying a wheelchair and, more particularly, to an escalator device for safely carrying a wheelchair.

[0002]

2. Description of the Related Art Generally, in an escalator device for transporting a wheelchair, in order to transport the wheelchair safely, a car stopper is projected from a wheelchair-mounted surface for driving. Conventionally, for example, Japanese Patent Laid-Open No. 1-275397 is known as this car stop mechanism.

[0003]

In the above-mentioned conventional technique, the movement of the steps is once stopped, the wheelchair is put in the vehicle, and then the car stop is projected, which is preferable from the viewpoint of safety. Similarly, the movement of the steps must be temporarily stopped and the car stop must be pulled back, which causes a problem that the service for general passengers is deteriorated.

An object of the present invention is to provide an escalator device capable of pulling back a car stop without stopping the movement of steps at the exit.

Another object of the present invention is to provide an escalator device capable of safely transporting a wheelchair while suppressing deterioration of service for general passengers.

[0006]

In order to achieve the above-mentioned object, the present invention forms a wheelchair mounting surface between a plurality of steps connected endlessly during wheelchair transportation operation, and from this wheelchair mounting surface a car stop is provided. In the escalator device configured to project, the car stop is configured to project by transmitting the power of the driving machine on the entrance side and to pull back on the exit side by using the relative moving force between the step and the fixed portion. Of.

[0007]

According to the above construction, since the vehicle stop is made to project at the entrance side by the power while the steps are stopped, the vehicle stop is projected after the wheelchair has been boarded, and then the driving is started, which is safe. Yes, wheelchair users can use it with confidence. Also, at the exit side, the car stop is pulled back while the steps are moving, so the wheelchair can be lowered without stopping the movement of the steps, and as a result, general passengers can continue to move after the wheelchair gets in and moves. Since it is possible to board, it is possible to prevent a significant reduction in service for ordinary passengers.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the escalator device of the present invention will be described below with reference to FIGS. As shown in FIG. 5, the escalator device according to the present embodiment guides and supports a plurality of endlessly connected normal steps 2 on a main frame 1 installed over the upper and lower floors so as to be rotatable, and further, The balustrade 7 is supported along the left and right of the row of the plurality of steps 2.
The balustrade 7 is provided with a balustrade panel and a moving handrail which is guided and supported on the periphery thereof. To the row of steps 2 of the escalator device having the above-described structure, a group of steps 3 that forms a wheelchair mounting surface when the wheelchair is transported is connected. This step group 3 includes three steps 4
It is composed of ~ 6.

As shown in FIG. 1, the step 4 has a step plate 4F fixed thereto, and the appearance is the same as the normal step 2 in appearance.
The step 5 is configured so that the step plate 5F can be raised by one step. The step 6 is configured so that the step plate 6F can be raised by two steps. A gear mechanism (not shown) including a first sprocket 9 is provided in each of the steps 4 and 5, and by rotating the sprocket 9, a coupling tool (not shown) is driven to each step plate 5F on the lower side of the first step. , 6F. In this way, the treads 5F and 6 on the lower side by one step, respectively
By connecting F, when the step 4 moves to the inclined portion of the escalator device, the step plates 5F and 6F of the steps 5 and 6 are picked up to keep the same position as the step plate 4F of the step 4, and the wheelchair 8 is lifted. A horizontal surface that can be mounted will be formed. First sprocket 10 similar to step 6
Is provided. This sprocket 1
The speed-increasing gears 11 and 12 mesh with 0, and the rack 14 of the car stop 13 meshes with the final speed-increasing gear 12.

The first sprocket 9 of the steps 4 and 5 has a second sprocket (not shown) in which a reverse gear is coaxially interposed, and the first sprocket 1 of the step 6 is provided.
0 also has a second sprocket (not shown) coaxially with a reverse gear.

The step group 3 having the above-mentioned structure, together with the normal steps 2, has guide rails 15A, 1 fixed to the main frame 1.
Drive along 5B.

On the other hand, as shown in FIG. 5, a power transmission device for rotating the first sprockets 9 and 10 and the second sprockets is provided on the main frame 1 facing the upper and lower floors of the boarding / alighting section. 16A, 16B (16B1, 16B2) are installed. These power transmission devices 16A, 16B, 16B
As shown in FIG. 5, the power transmission devices 16A and 16B are arranged in parallel on the lower floor side, and the power transmission devices 16B1 and 16B2 are arranged on the upper floor side.

When the first sprockets 9 and 10 of the steps 4, 5 and 6 of the specific step group 3 mesh with the power transmission device 16A on the lower floor side during the ascending operation, the first sprockets on the upper floor side each belong to the first step. The second sprocket coaxial with the sprockets 9 and 10 is arranged to mesh with the power transmission device 16B2,
Also, during the descent operation, each first sprocket 9,
10 and the power transmission device 16B1, and the second sprocket coaxial with the first sprockets 9 and 10 and the power transmission device 16B are arranged so as to mesh with each other on the lower floor side.

The power transmission devices 16A, 16B and 16
B1 and 16B2 are configured as shown in FIG. First, in the power transmission device 16A, a movable frame 19 is rotatably supported by a mounting frame 17 for mounting on the main frame 1 via rotating arms 18A and 18B. At the top of this movable frame 19,
Two sprockets 20A and 20B are pivotally supported.
These two sprockets 20A and 20B are provided in parallel with the step plates of the steps and spaced apart in the depth direction of the step plates. The drive sprocket 21 is pivotally supported at a position lower than the sprocket 20A and 20B. An endless rotating chain 22 which is a movable rack or a movable chain is wound around and meshed with the sprockets 20A and 20B and the drive sprocket 21. Reference numeral 23 is an electric motor that drives the drive sprocket 21 directly or indirectly. Reference numeral 24 denotes a lower portion of the chain 22 so that the chain 22 stretched horizontally between the two sprockets 20A and 20B does not bend more than a predetermined value due to the meshing with the first sprockets 9 and 10 and the second sprockets. The displacement regulating body is provided with a minute gap G1 on the side.

The movable frame 19 having the above-mentioned structure is connected to an oscillating machine 26 fixed to the mounting frame 17 via a link mechanism 25. In the wheelchair carrying operation, the rocking machine 26 is configured to be driven by detecting the approach of the step 4 during the ascending operation, and driven when detecting the approach of the step 6 during the descending operation.

On the other hand, the power transmission devices 16B, 16B1, 1
6B2 is a chain 27 that is horizontally held at the same height as the chain 22 stretched horizontally between the sprockets 20A and 20B, and is similar to the rotating arms 18A and 18B connected to both ends of the chain 27. Rotating arm (not shown)
It is composed of tension adjusting devices 30A and 30B that are axially supported by.

Next, the normal ascending operation of the escalator device having the above construction will be described. First, when operating as a general escalator device, the power transmission device 16
A, 16B, 16B1 and 16B2 are respectively supported at the lowered positions as shown by the chain double-dashed line in FIG. Therefore, the chains 22 and 27 are attached to the first sprockets 9 and 1 respectively.
It is retracted to a position where it does not interfere with 0 and the second sprocket. By performing the normal ascending operation in this state, the steps 4 to 6 of the step group 3 travel along the guide rails 15A and 15B in the same manner as the normal step 2 and can carry general passengers. When a wheelchair transportation command is issued by, for example, a button operation of an attendant during the normal driving, the passengers are prohibited from boarding, and the passengers who are already on the vehicle are allowed to continue driving until reaching the exit. And the specific step group 3
Immediately before the step 4 appears from the lower floor hall LF, the rocker 26 of the power transmission device 16A is driven to raise the movable frame 19. As the movable frame 19 rises, the steps 4 and 5 of the specific step group 3 continue to move while meshing the first sprocket 9 with the chain 22, and the steps 4 to 6 of the specific step group 3 are completely removed from the lower floor hall LF. The movement of the step stops at the position where it appears. The steps 4 and 5 of the specific step group 3 are the moving chain 2
Rotation of the first sprocket 9 by meshing with 2 drives a coupling tool (not shown) to couple the step plates 4F-5F and the step plates 5F-6F of the steps 5 and 6 one step lower, respectively. At this time, the first sprocket 10 of the step 6 has started to mesh with the end of the chain 22.

As described above, if the specific step group 3 stops at the position emerging from the lower floor hall LF, the wheelchair 8 is put on the specific step group 3 as shown in FIG. 5 (A).

When the loading of the wheelchair 8 is completed, the attendant pushes the start button. By operating this start button, the electric motor 23 starts to rotate the chain 22 in the direction of the arrow in FIG. By the rotation of the chain 22, the first sprocket 10 and the speed increasing gears 11 and 12 in the step 6 are rotated, and finally the car stop 13 is projected from the tread via the rack 14 (two points in FIG. 1). Chain line).

When it is detected by a detector or the like that the car stop 13 is projected by a predetermined size, the escalator device starts the operation and moves the steps.

When the driving is started, the passengers can be boarded, and the wheelchair 8 and the passengers can be carried at the same time. When the step 4 of the specific step group 3 enters the inclined portion, as shown in FIG. 5B, the step plate 5F of the step 5 connected to the step 4 is formed.
And the step plate 6F of the step 6 connected to the step plate 5F of the step 5 maintain the same position as the step plate 4F of the step 4, so that the three step plates are arranged horizontally to form a wheelchair mounting surface.

The specific step group 3 equipped with the wheelchair 8 is shown in FIG.
As shown in (C), when approaching the upper floor hall UF, the attendant pushes the wheelchair 8 as it is onto the upper floor hall UF and lowers it from the escalator device.

At this time, since each step 2 including the specific step group 3 continues to move without stopping, the specific step group 3
When the vehicle approaches the upper floor hall UF, the power transmission device 16B2 installed on the upper floor side is lifted and the chain 27
Is engaged with a second sprocket (not shown) having a reverse gear coaxial with the first sprockets 9 and 10 of the steps 4 to 6, and is rotated by relative movement of the two. By the rotation of the second sprocket, the connection between the treads 4F and 5F and between the treads 5F and 6F is released, and the car stop 13 is also pulled back to the fixed position.

As described above, since the step plates are connected and the car stop 13 is pulled back while the steps are moving, normal operation can be resumed without stopping the steps.

Although the above description is about the ascending operation, the descending operation will be described next. When a wheelchair transportation command is issued by a button operation of an attendant during a normal descent operation, the rocker 26 of the power transmission device 16B1 is driven to move immediately before the step 4 of the specific step group 3 appears from the upper floor hall UF. The frame 19 is raised, and the chain 27 and the first sprockets 9 and 10 are engaged with each other so that the first sprockets 9 and 1
By rotating 0, the car stop 13 is projected, and subsequently, the step plates 6F, 5F are connected and the step plates 5F, 4F are connected, and the step group 3 is stopped at the position shown in FIG. 5 (C). . Here, when the wheelchair 8 is put in the vehicle and the operation is restarted, the specific step group 3 moves to the state shown in FIG.
To (A).

Immediately before the specific step group 3 reaches the position (A) in FIG. 5, the movable frame 19 of the power transmission device 16B on the lower floor is lifted up so that the second sprocket meshes with the chain 27 one after another, and the car stop 13 stops. The pullback and the connection between each tread are released. Since the car stop 13 is pulled back, when the specific step group 3 reaches (A) in FIG. 5, the attendant pushes up the wheelchair 8 to the lower floor hall LF without stopping the movement of the steps 2 and 3 and lowers it.

As described above, when the wheelchair is raised and raised, the vehicle stop is projected on the entrance side by transmitting the power of the driving machine, and is pulled back on the exit side by using the relative movement force between the step and the fixed portion. In addition, since the car stop is pushed in using the relative moving force between the step and the fixed part at the entrance side and the exit side during the wheelchair transport descent operation, after the car stop has completely come out on the entrance side. It is equipped with a wheelchair carrier and can be lowered at the exit without stopping the movement of the steps.

By the way, in the power transmission device 16A, as shown in FIG. 1, a displacement regulating body 24 is provided below the chain 22 stretched horizontally between the two sprockets 20A and 20B with a gap G1. When the chain 22 is rotated to mesh with the sprocket 10 of the step 6, as shown in FIG. 2, the sprocket 1 near the sprocket 20A.
If 0 is meshed with the chain 22, the chain 22 is displaced less and the chain 22 smoothly rotates without coming into contact with the displacement restricting body 24 due to the gap G1. On the other hand, when the chain 22 is engaged with the sprocket 9 without rotating, the chain 22 is given a constant tension T. However, when the sprocket 9 produces a tangential component force F1 during engagement. As shown in FIG.
The chain roller 22R of the chain 22 is pushed downward to make the meshing with the sprocket 9 incomplete. This will be specifically described with reference to FIGS. 3 and 4.
As shown in, there is a constant gap G1 between the chain 22 and the displacement restricting body 24, and the meshing portion of the chain roller 22R is in a floating state. However, as the engagement progresses,
Since the chain roller 22R receives the component force F1 from the sprocket 9, when the component force F1 increases, the chain roller 22R is pushed down by the sprocket 9, as shown in FIG. The chain 22 is pushed down and the gap G
When the number 1 disappears, the displacement regulator 24 causes the chain 22
No further drop of the chain roller 22R
There is no disengagement between the sprocket 9 and the sprocket 9.

Although the above embodiment uses a series of chains 22, a plurality of chains may be used as shown in FIG. FIG. 6 shows three chains 22A, 22B, 2
2C is used, and each of them is connected by a connecting pin 29. And the chains 22A on both sides of the chain 22B,
22C is a double drive sprocket 20RA, 20RB, 2
It is wound around 1R so that the sprockets 9 and 10 of the step group 3 mesh with the center chain 22B. Of course, the displacement of the chain 22B with which the sprockets 9 and 10 mesh is performed by providing the displacement restricting bodies 30A and 30C on the movable frame 19 facing the chains 22A and 22C.

By using the three chains 22A, 22B and 22C, the passage position of the sprockets 9 and 10 on the step side and the installation position of the two double sprockets 20RA and 20RB can be set at different positions. 9, 10 and double sprockets 20RA, 20RB
The tooth tips of and do not interfere with each other by sandwiching the chain, and the engagement between each sprocket and the chain can be deepened.

In the above embodiment, the sprockets 9 and 10 of the step group 3 are rotated by the same chain 22 and 22B to connect the treads and to project the car stop. It is also possible to provide dedicated chains facing the 10 and the second sprocket, respectively, to connect and release the treads and to project and insert the car stop 13.

Further, the power transmission device 1 is installed in the entry / exit section on the lower floor side.
One 6A and one power transmission device 16B on the upper floor
Installed, and if necessary, the first sprockets 9 and 10
Alternatively, the power transmission devices 16A and 16B may be configured to move in parallel so as to face the second sprocket.

Further, as shown in FIG. 7 to FIG. 9, one power transmission device 16A is arranged in the entry / exit section on the lower floor side so as to face the first sprockets 9 and 10, and the entry / exit section on the upper floor side is arranged. The power transmission device 16B may be arranged to face the second sprockets 31 and 32 with one reverse gear 31R and 32R interposed therebetween. In this way, the operation when one power transmission device is installed on each of the upper and lower floors of the boarding / alighting section will be described.

First, during the ascending operation, as shown in FIG. 8, the first sprocket 9 is engaged with the rotating chain 22 of the power transmission device 16A one after another in the lower floor side getting on / off portion to rotate in the direction of arrow a. Then, connect the connecting piece 33 of the adjacent tread to the arrow Ra.
The first sprocket 10 stops moving at the position where the first sprocket 10 starts to mesh with the rotating chain 22.
In this state, when the wheelchair is loaded and the start button is pressed, the rotation chain 22 moves in the direction of arrow c, rotates the first sprocket 10 in the direction of arrow a, and stops the car 13.
Is moved in the direction of arrow U. When the vehicle starts to move in this state and reaches the upper floor getting on / off portion, the second sprockets 31 and 32 are successively engaged with the fixed chain 27 of the power transmission device 16B to move the reverse rotation gears 31R and 32R in the arrow b direction. Rotate,
The connecting piece 33 is moved in the direction of arrow Rb to return it to its original position, and the car stop 13 is moved in the direction of arrow D and retracted.

Next, during the descending operation, as shown in FIG. 9, the second sprocket 32 engages with the fixed chain 27 of the power transmission device 16B at the upper floor side entry / exit portion to move the reverse gear 32R in the direction of arrow a. Turn to the direction of the car stop 13 and turn the arrow U
Move in the direction. In this state, when the movement of the steps is stopped and the wheelchair is loaded and the start button is pressed, the second sprocket 31 is engaged with the fixed chain 27 one after another and the reverse rotation gear 31R is rotated in the direction of arrow a to adjoin. The connecting piece 33 of the tread is moved in the direction of the arrow Ra to connect the adjacent treads, and the movement is started. When you move to the lower floor side getting on and off,
The first sprockets 10 and 9 sequentially mesh with the rotation chain 22 that has stopped rotating, rotate in the direction of arrow b, move the car stop 13 in the direction of arrow D, and move the connecting piece 33 in the direction of arrow. Move it in the Rb direction and return to the original position. By arranging the power transmission devices 16A and 16B in this manner, the installation quantity of the power transmission devices and their accessories can be minimized and the configuration can be simplified.

[0036]

As described above, according to the present invention, the vehicle stop can be pulled back without protruding the vehicle stop at the entrance, and the vehicle stop can be pulled back without stopping the movement of the steps at the exit. It is possible to obtain an escalator device capable of safely transporting a wheelchair without significantly lowering service for passengers.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of a power transmission device for a car stop of an escalator device according to the present invention.

FIG. 2 is an enlarged view of an essential part showing a state of action of force of the power transmission device of FIG.

FIG. 3 is an enlarged view of a main part of FIG.

FIG. 4 is an enlarged view of a main part of FIG.

5 is a schematic side view of the escalator device showing the installation position of the power transmission device of FIG. 1. FIG.

6 is a schematic perspective view showing another example of chain arrangement of the power transmission device of FIG. 1. FIG.

FIG. 7 is a schematic side view showing another embodiment of the power transmission device for the car stop of the escalator device according to the present invention.

FIG. 8 is a schematic diagram showing an operation of the power transmission device shown in FIG. 7 during a climbing operation.

9 is a schematic diagram showing an operation of the power transmission device shown in FIG. 7 during a descent operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main frame, 2 ... Normal steps, 3 ... Step groups, 4, 5, 6 ... Steps which comprise the step group 3, 8 ... Wheelchair, 9, 10 ... 1st sprocket, 13 ... Car stop, 16A, 16B, 16B
1, 16B2 ... Power transmission device, 19 ... Movable frame, 22 ... Rotating chain, 24 ... Displacement restricting body, 27 ... Fixed chain,
31, 32 ... Second sprocket, 31R, 32R ... Reversing gear, 33 ... Coupling piece.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Atsushi Tomita Atsushi Tomita 832, Horiguchi, Katsuta, Ibaraki 2 2 Hitachi System Plaza Katsuta Hitachi Mito Engineering Co., Ltd. (72) Toshiyuki Tamazu At 832, Horiguchi, Katsuta, Ibaraki 2 Hitachi System Plaza Katsuta Hitachi Mito Engineering Co., Ltd. (72) Inventor Kahei Kojima 1070 Ichige, Ichikatsu, Katsuta-shi, Ibaraki Hitachi Ltd. Mito Plant, Ltd. (72) Taichiichi Saito 1070, Ige, Katsuta-shi, Ibaraki Hitachi, Ltd. Mito Factory (72) Inventor Toshiaki Matsuo 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building System Service Co., Ltd.

Claims (11)

[Claims] 1. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps when a wheelchair is transported, and the steps are arranged to project the car stop from the wheelchair mounting surface. An escalator device characterized in that when driving, the power of a driving machine is transmitted and projected at the entrance side, and pulled back by using the relative moving force between the step and the fixed part at the exit side. 2. An escalator device in which a wheelchair mounting surface is formed between a plurality of steps connected endlessly during a wheelchair transportation operation, and steps for projecting a car stop from the wheelchair mounting surface are connected to the upper entrance / exit side. A power transmission mechanism for projecting and inserting the car stop during wheelchair transport operation is provided on the lower entrance / exit side, and a drive unit is provided for the power transmission mechanism on the lower entrance / exit side of these power transmission mechanisms. An escalator device, characterized in that it is configured to transmit power to cause the bollard to project. 3. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps guided and supported by a main frame during wheelchair transport operation, and steps for projecting a car stop from the wheelchair mounting surface are connected. In a step forming the wheelchair mounting surface, a car stop moving mechanism for projecting or pulling back the car stop, and a first power transmission mechanism for driving the car stop moving mechanism are provided, and the upper entrance and the lower entrance side and the lower part of the main frame are provided. A second power transmission mechanism that engages with the first power transmission mechanism during wheelchair transport operation is provided on the entrance / exit side, and a second power transmission mechanism on the lower entrance / exit side is used as the first power transmission during ascending operation. An escalator device comprising means for moving the mechanism relative to the mechanism. 4. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps guided and supported by a main frame during wheelchair transport operation, and steps for projecting a car stop from the wheelchair mounting surface are connected. In, in the step forming the wheelchair mounting surface, a car stop moving mechanism for projecting or pulling back the car stop, and a gear for driving the car stop moving mechanism are provided, and an upper entrance / exit side and a lower entrance / exit side of the main frame are provided. An escalator device comprising: a rack that meshes with the gears during a wheelchair transport operation; and a means for moving the rack on the lower entrance / exit side in a direction that rotates the gears only during an ascending operation. 5. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps guided and supported by a main frame during wheelchair transportation operation, and steps for protruding a car stop from the wheelchair mounting surface are connected. In, in the step forming the wheelchair mounting surface, the gear mechanism is provided to project or pull back the car stop, a movable rack that meshes with the gear mechanism during wheelchair transportation operation is provided on the lower entrance / exit side of the main frame,
An escalator device characterized in that a fixed rack, which meshes with the gear mechanism during wheelchair transportation operation, is provided on the upper entrance / exit side of the main frame, and means for driving the movable rack only while the steps are stopped moving is provided. . 6. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps guided and supported by a main frame during wheelchair transportation operation, and steps for projecting a car stop from the wheelchair mounting surface are connected. In the step forming the wheelchair mounting surface, a gear mechanism that projects or pulls back the car stop is provided, and an endless shape that meshes with the gear mechanism is stretched on the upper and lower entrance and exit sides of the main frame. A means for arranging each of the chains, providing means for rotating the chain stretched on the lower entrance / exit side of the chains during the ascending operation, and moving each of the chains forward to a position where they mesh with the gear mechanism during wheelchair transport operation An escalator device characterized by being provided with a device. 7. The rotated chain is wound around at least two chain-mounted gears to be rotated along a step advancing direction, and is driven by at least one of the chain-mounted gears. 7. The escalator device according to claim 6, wherein the machine is connected, and a displacement restricting body that restricts displacement of the chain is disposed between the two chain mounted gears. 8. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps guided and supported by a main frame during wheelchair transport operation, and steps for projecting a car stop from the wheelchair mounting surface are connected. In, in the step forming the wheelchair mounting surface, a gear mechanism that projects or pulls back the car stop is provided, and a movable rack and a fixed rack that mesh with the gear mechanism during wheelchair transport operation are provided on the lower entrance / exit side of the main frame. An escalator, which is provided with means for driving the movable rack by meshing with the gear mechanism during ascending operation, and is configured to drive the fixed rack by meshing with the gear mechanism during descending operation. apparatus. 9. An escalator device in which a wheelchair mounting surface is formed between a plurality of endlessly connected steps guided and supported by a main frame during wheelchair transport operation, and steps for protruding a car stop from the wheelchair mounting surface are connected. In the step forming the wheelchair mounting surface, a first gear mechanism that projects or pulls back the car stop and a second gear mechanism that operates in reverse to the first gear mechanism are provided, and A movable chain is arranged at a position facing the first gear mechanism on the mouth side, and a fixed chain is arranged at a position facing the second gear mechanism on the upper entrance / exit side of the main frame, and A moving means for moving the movable chain and the fixed chain forward to a position where they mesh with the first and second gear mechanisms, and means for rotating the movable chain during the ascending operation. That escalator apparatus. 10. A plurality of steps which are endlessly connected to each other and are guided and supported by a main frame are connected to a plurality of steps which are adjacent to each other and which form a wheelchair-mounting surface during a wheelchair-carrying operation, and a car stop is provided from the wheelchair-mounting surface. In an escalator device configured to project, a first gear mechanism that projects or pulls back the car stop into a lower step of the steps forming the wheelchair mounting surface, and a first gear mechanism that performs a reverse operation to the first gear mechanism. A second gear mechanism is provided, and a third gear mechanism that drives a connecting tool that connects adjacent treads is provided in the remaining steps, and the lower gear entrance side of the main frame opposes the first gear mechanism. The movable chain is arranged at a position, and the first fixed chain is arranged at a position facing the second gear mechanism on the upper entrance / exit side of the main frame, and the first fixed chain is arranged on the upper and lower entrance / exit sides of the main frame. The third of each A second fixed chain is arranged at a position facing the gear mechanism, and the movable chain and the first and second fixed chains are advanced to a position where they mesh with the first, second and third gear mechanisms. An escalator device comprising: a moving unit for moving the movable chain and a unit for rotating the movable chain during the ascending operation. 11. The movable chain is composed of a triple chain, and the chains at both ends thereof are wound around two chain-mounted gears and stretched horizontally, and the central chain has the first gear mechanism. Is disposed at a position facing each other, a displacement restricting body is provided under the horizontally stretched chains of the both ends with a minute gap, and a rotary machine is connected to at least one of the chain mounted gears. The escalator device according to claim 10, wherein the escalator device is provided.