JP2000185888A - Escalator also used for wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify structure, reduce a production cost, facilitate maintenance and adjustment, and prevent an electrical poor operation from occurring. SOLUTION: This escalator comprises a step row obtained by connecting a plurality of steps steplessly, and one step of the step row is formed in a special step 14b for loading a wheelchair. In this case, a plurality of step plates 21 which are disposed at the top of a step base part 20 in parallel with each other and expand the step surfaces by expanding in buckboard shape by the operation of a cross-link mechanism 26 at the time of loading of the wheelchair are provided on the special step 14b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator usable in a wheelchair, and more particularly to an escalator combined with a wheelchair having an improved special step structure for mounting a wheelchair.

[0002]

2. Description of the Related Art In general, an escalator is composed of a body composed of a truss or the like installed at an angle between a lower floor and an upper floor of a building, and a plurality of steps connected endlessly through a chain. And the steps are incorporated in the main body and run from the lower floor of the building to the upper floor or from the upper floor to the lower floor.

[0003] In an escalator that can be used in a wheelchair, some of the steps in the row of steps are special steps that change to a form in which a wheelchair can be mounted according to the setting of wheelchair operation.

FIG. 8 shows an example of a conventional special step.
In this example, three steps adjacent to each other are special steps 1a, 1b, 1c. The special step 1a arranged on the upper side of the slope changes its posture from a horizontal state to an inclined state in accordance with the setting of wheelchair operation, and the tread plate 2c of the special step 1c arranged on the lower side of the slope serves as a cross link mechanism 3.
c and rises to the same level as the tread plate 2b of the special step 1b arranged in the middle part, and the connecting key 4b protrudes from the special step 1b arranged in the middle part and the tread plate 2c of the special step 1c and the special step 1c The tread 1b is connected to the tread 2b.

[0005] The special steps 1a,
2b and 3c secure a step surface in a wide area where a wheelchair can be mounted. After the wheelchair is mounted on this step surface, the wheelchair 5c stands up from the rear upper surface of the tread plate 2c in the special step 1c on the inclined lower side, and the wheelchair 5c prevents the wheelchair from falling off.

In the example shown in FIG. 9, three steps adjacent to each other are special steps 1a, 1b, and 1c, and the special steps on the intermediate portion and the lower inclined side are set according to the setting of wheelchair operation. The treads 2b and 2c of the steps 1b and 1c rise by the operation of the cross link mechanisms 3b and 3c, respectively, and rise to the same level as the treads 2a of the special steps 1a at the upper part of the slope. The connecting keys 4a, 4b protrude from the steps 1a, 1b, respectively, and the three steps 2a, 2b, 2c are connected to each other, and the steps 2a, 2b, 2c secure a wide step surface in which a wheelchair can be mounted. After the wheelchair is mounted on this step surface, a wheel stop 5c stands up from the rear upper surface of the tread 2c in the special step 1c on the inclined lower side, and the wheel stop 5c Falling off of you is adapted to be prevented.

Further, the configuration shown in FIG.
No. 26074) and the configuration shown in FIG.
436) has been proposed. FIG. 10 shows a configuration in which the tread plate 2a of the special step 1a on the upper inclined side is configured to be tiltable, and the tread plate 2b of the special step 1b on the lower inclined side is configured in a foldable structure that can be deployed. At times, the tread plate 2a of the special step 1a is inclined, and the folded step plate 2b of the special step 1b rises and unfolds.

In FIG. 11, the step 2a of the special step 1a on the upper slope side is configured to be tiltable, and the special step 1b on the lower slope side has a step board 2b that can be pulled out. The tread plate 2a of the special step 1a is inclined, and in this state, the tread plate 2b of the special step 1b can be pulled out so that a wheelchair can be mounted.

[0009]

However, in such a conventional structure, the structure is complicated, the manufacturing cost is increased, the maintenance adjustment is difficult, and the motor and its motor are required to extend the step surface. A contact mechanism or the like for starting is required, and particularly in an escalator installed on a platform of a station or the like, there is a drawback that an operation failure due to an electric factor such as intrusion of dust or rainwater easily occurs.

The present invention has been made in view of such a point, and its object is to simplify the configuration, reduce the manufacturing cost, easily perform maintenance adjustment, and operate the device due to electrical causes. An object of the present invention is to provide a wheelchair combined escalator which does not cause a defect.

[0011]

According to a first aspect of the present invention, there is provided a step sequence in which a plurality of steps are connected endlessly, and at least one step in the step sequence includes a special step for mounting a wheelchair. In the wheelchair-combined escalator, the special step is provided in parallel with an upper part of a step base, and is provided with a plurality of step boards that extend in a stepped shape when the wheelchair is mounted and expand a step surface. And

According to a second aspect of the present invention, in the escalator for a wheelchair of the first aspect, an extension means for extending the treadboard in a saw-tooth shape is provided at the step base.

According to a third aspect of the present invention, in the escalator for a wheelchair of the second aspect, the extension means for extending the treadboard in a saw-tooth shape is constituted by a cross link mechanism.

According to a fourth aspect of the present invention, in the escalator for a wheelchair of the second and third aspects, the extension means for extending the treadboard in a saw-tooth shape operates in conjunction with a biasing device provided on the main body of the escalator. It is characterized by.

According to a fifth aspect of the present invention, in the escalator for a wheelchair of the first, second and third aspects, a lock mechanism for maintaining an extended state of the tread plate is provided at the step base.

[0016] The invention according to claim 6 is the first or second invention.
In the escalator for wheelchairs described in 3 and 4,
It is characterized in that the gap between the treads when extending in a saw-tooth shape is smaller than the size of the wheel of a wheelchair.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a schematic configuration of an escalator combined with a wheelchair. In FIG.
Reference numeral 2 denotes a balustrade standing upright on the upper part of the main body 11, and reference numeral 13 denotes a step row in which a plurality of steps 14 are connected endlessly in a row and circulate and run inside the main body 11 along a guide rail 15.

Reference numeral 16 denotes a lower floor entrance to the escalator, and 17 denotes an upper floor entrance.
Call buttons 18 for calling a clerk and operation buttons 19 for operating the escalator are provided near the members 6 and 17, respectively.
Are arranged.

Two adjacent steps among the plurality of steps 14 constituting the step sequence 13 are special steps 14a, 14a.
The special step 14a arranged on the upper side of the slope changes its posture from a horizontal state to an inclined state in accordance with the setting of wheelchair operation.

The special step 14b on the lower side of the slope arranged adjacent to the special step 14a is configured as shown in FIGS. That is, reference numeral 20 denotes a step base, and a plurality of divided treads 21 are provided in parallel on the upper part of the step base 20, and these treads 21 serve as step surfaces 22.
Is configured.

Each of these steps 21 has a strip shape extending in the width direction of the steps 20, that is, in the direction perpendicular to the running direction of the steps 13, and is parallel to the direction perpendicular to the width of the steps 20. I have.

The treads 21 are slidably supported in a direction perpendicular to the width direction of the step base 20 via support members (not shown) provided on both inner sides of the step base 20.
A pandagraph type cross link mechanism 26 is provided on the lower surface side of these tread plates 21 as an extension means for sliding these tread plates 21 to extend in a saw-tooth shape.

The cross link mechanism 26 has a plurality of first and second link bars 27a and 27b crossed in an X-shape, and the cross portions are rotatably connected to each other via a pivot 28a. A plurality of link pairs 27 are sequentially arranged in parallel in a direction perpendicular to the width direction of the step base 20, and one of the adjacent link pairs 2
7, one end of the first link bar 27a and one end of the second link bar 27b of the other link pair 27 are rotatably connected via a pivot 28b. The first link bar 2 in the other end of the link bar 27b and the other link pair 27
The first and second link bars 27a, 27b of the link pair 27 arranged in the frontmost row on the front side of the step base 20 are connected to the other end of the link 7a via a pivot 28c. The pivots 28d and 28e are respectively attached to the side ends, and the pivots 28f and 28g are respectively attached to the open ends of the first and second link bars 27a and 27b in the link pair 27 arranged in the last row.

The pivot 28d is connected to the lower surface of the step 21 arranged in the front row, the pivot 28f is connected to the lower surface of the last step board 21, and the pivot 28b is connected to the step between the front row and the last row. 21 is coupled to the lower surface.

A fixed frame 30 is provided on one side of the cross link mechanism 26, and a movable frame 31 is provided on the other side. The fixed frame 30 is fixed to the step base 20. The pivots 28b, 28d arranged on one side of the cross link mechanism 26 on the side surfaces,
The movable frame 31 is slidably supported along the width direction of the step base 20 via a pair of guide rails 32 provided on the step base 20. The pivots 28c, 28e, 28 on the other side of the mechanism 26
g can be pushed and moved toward the arrangement side of the fixed frame 30.

When the movable frame 31 slides toward the fixed frame 30 by a predetermined distance, the guide rail 32 has a locking mechanism for removably engaging the movable frame 31 to prevent the movable frame 31 from moving. The movable frame 31 is elastically urged by a spring 34 in a direction away from the pivots 28c, 28e, 28g.

Further, the movable frame 31 is provided with a support shaft 35 extending downward, and a roller 36 is rotatably attached to an end of the support shaft 35.

On the other hand, as shown in FIG. 4, the main body 11 of the escalator for driving the step train 13 endlessly is located at positions corresponding to the entrances and exits 16 and 17 on the lower and upper floors. When the steps 14, 14a, 14b travel on the portion, biasing devices 41, 42 are provided at positions below the steps 14, 14a, 14b.

The urging devices 41 and 42 are provided with a lifting mechanism 4
3 so as to be able to ascend and descend through the main body 1
It has one guide wall 44 extending in the longitudinal direction. These guide walls 44 include an inclined portion 44a that inclines to the left and right sides in the longitudinal direction of the main body 11, and first and second extending portions extending from one end and the other end of the inclined portion 44a along the longitudinal direction of the main body 11, respectively. The two guide portions 44b and 44c are formed in a gentle step shape. Note that the lower-floor guide wall 44 and the upper-floor guide wall 44 are provided so as to be arranged symmetrically with an intermediate portion of the main body 11 as a boundary.

The operation of the escalator combined with a wheelchair constructed as described above will be described by taking as an example the case of climbing operation. When the normal operation is set, the step board 15a of the special step 14a is held in a horizontal state, and The treads 14b 14b are in contact with each other to form a normally expanding step surface 22, and the step train 13 runs endlessly in such a state. When the normal operation is set, each of the urging devices 41 and 42 is held at a lower level position.

In this state, when the user of the wheelchair arrives at the lower entrance 16 in order to use the escalator, the call button 18 is operated to call the attendant. The called staff operates the operation button 19 to switch the operation of the escalator to the setting of the wheelchair operation.

When the wheelchair operation is set, when the special steps 14a and 14b of the endless train of steps 13 approach the entrance 16 on the lower floor, the speed is reduced, and each of the urging is performed. The devices 41 and 42 are driven by the lifting mechanism 43 to move up to a predetermined level.

When the special step 14b travels at a low speed at the entrance / exit 16, the rollers 36 of the special step 14b
Comes into contact with the side surface of the first guide portion 44b in the guide wall 44 of the biasing device 41 on the lower floor side, and further, the
Advances, the roller 36 moves from the first guide portion 44b to the inclined portion 44a, and moves through the section of the inclined portion 44a.
And moves in the width direction of the step base 20 integrally.

The movement of the movable frame 31 causes the pivots 28c, 28e, 2 on the other side of the cross link mechanism 26 to move.
8g is pushed to the side where the fixed frame 30 is disposed, and this pushing causes the cross link mechanism 26 to move the step base 20.
The step bases 21 extend in a direction perpendicular to the width direction of the step base so that the tread plates 21 that have been in contact with each other and are arranged side by side with this extension are separated from each other while maintaining a parallel state as shown in FIGS. It moves in a direction perpendicular to the width direction of 20 and extends in a saw-tooth shape, and the step surface 22 is expanded by this extension.

The roller 36 is provided with an inclined portion 44a of the guide wall 44.
To the second guide portion 44c to move the movable frame 31
Is moved by a certain distance, the movable frame 31 is locked by the lock mechanism 33, and the expanded state of the step surface 22 is maintained by this lock.

The movable frame 31 is provided with the lock mechanism 3
When the lock is locked by the step 3, the traveling of the steps 13 stops. Also, during the operation in which the tread plate 21 of the special step 14b extends and the step surface 22 expands, the tread plate 15a of the special step 14a disposed on the leading side thereof is inclined.

Thereafter, the attendant pushes and mounts the wheelchair from the entrance 16 on the lower floor to the expanded step surface 22 of the special step 14b, and operates the operation button 19 to activate the escalator. As a result, the wheelchair is transported to the entrance 17 on the upper floor while keeping the level.

The special step 14b is located at the entrance 17 on the upper floor.
When the vehicle reaches, traveling of the steps 13 stops. Here, the attendant lowers the wheelchair from the special step 14b to the entrance 17 and then releases the lock mechanism 33. At this time,
The roller 36 is opposed to the first guide portion 44b of the upper floor guide wall 44 at a distance. 26, the movement of the cross link mechanism 26 is released.

Thereafter, the cross link mechanism 26 is pushed in the depth direction of the special step 14b. Due to this pushing, the treadboards 21 which have been spread in a scale shape are brought into close contact with each other, and the step surface 22 returns to the original size of the normal state. Thus, the wheelchair operation is completed, and thereafter, the normal operation is performed by operating the operation button 19.

When the escalator is going down, the steps 13 run in the opposite direction, and when the wheelchair operation is set, the special steps 14b reach the entrance 17 on the upper floor and the rollers 36 When the vehicle moves along the guide wall 44 on the upper floor side, the cross-link mechanism 26 extends in the same manner as described above, and the steps 21 extend in a saw-tooth shape so that the wheelchair can be mounted.

As described above, in the special step 14b of the present embodiment, the step surface 22 is expanded by the plurality of steps 21 provided in one step extending in a saw-toothed manner by the operation of the cross link mechanism 26. Therefore, the configuration is simple, the manufacturing can be performed at low cost, and the maintenance adjustment is also easy. Since an electric motor and an electrical contact mechanism for expanding the step surface 22 are not required, operation failure due to an electrical cause does not occur.

When the step board 22 of the special step 14b extends in the shape of a ladder and the step surface 22 is expanded, a gap G is formed between the steps 21 as shown in FIG. Is set to a width sufficiently smaller than the size (diameter dimension) of the wheels A and B of the wheelchair mounted on the step surface 22. Therefore, when the wheelchair is pushed and mounted on the step surface 22, the wheels A and B of the wheelchair
A part of the tire is elastically deformed and bites into the gap G appropriately, so that the wheelchair can be stably set on the step surface 22. Therefore, it is necessary to particularly provide a wheel stop on the step surface 22. And the structure is further simplified.

The escalator of the present invention can be used in a normal wheelchair, and can be used in an electric wheelchair.
Alternatively, use in an electric tricycle or the like is also possible.

[0044]

As described above, according to the present invention, the structure is simple, the manufacturing cost can be reduced, the maintenance adjustment can be easily performed, and the wheelchair can be used without causing malfunctions due to electrical causes. An escalator can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a wheelchair and escalator according to an embodiment of the present invention.

FIG. 2 is a sectional view of a special step in the escalator.

FIG. 3 is a plan view showing a configuration of a main part of the special step.

FIG. 4 is a plan view of a main body of the escalator.

FIG. 5 is a plan view showing a state where a step surface of a special step of the escalator is expanded.

FIG. 6 is a sectional view showing a state where the step surface of the special step of the escalator is expanded.

FIG. 7 is a cross-sectional view showing a state where a wheelchair is mounted on the extended step.

FIG. 8 is a configuration diagram showing a first example of a special step in a conventional wheelchair and escalator.

FIG. 9 is a configuration diagram showing a second example of a special step in a conventional wheelchair / escalator.

FIG. 10 is a configuration diagram showing a third example of a special step in a conventional wheelchair / escalator.

FIG. 11 is a configuration diagram showing a fourth example of a special step in a conventional wheelchair / escalator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Escalator main body 13 ... Step row 14 ... Step 14a, 14b ... Special step 20 ... Step base 21 ... Step board 22 ... Step surface 26 ... Cross link mechanism 30 ... Fixed frame 31 ... Movable frame 33 ... Lock mechanism 36 ... Roller 41 , 42: biasing device 44: guide wall

Claims (6)

[Claims] 1. A wheelchair / escalator having a plurality of steps connected endlessly, wherein at least one step in the steps is a special step for mounting a wheelchair, wherein the special steps include: , Placed in parallel at the top of the step base,
An escalator combined with a wheelchair, wherein a plurality of treads are provided to extend in a stepped shape when the wheelchair is mounted, thereby expanding a step surface. 2. The escalator for both wheelchairs according to claim 1, wherein the step base is provided with an extension means for extending the treadboard in a saw-tooth shape. 3. The extension means for extending the treadboard into a saw-like shape,
3. The escalator according to claim 2, wherein the escalator is a cross-link mechanism. 4. An extension means for extending a tread in a saw-like shape,
The escalator according to claim 2, wherein the escalator is operated in cooperation with an urging device provided on a main body of the escalator. 5. The escalator for both wheelchairs according to claim 1, wherein the step base is provided with a lock mechanism for maintaining the extended state of the step board. 6. The escalator according to claim 1, 2, 3 or 4, wherein the gap between the treads when extending in a saw-tooth shape is smaller than the size of the wheel of the wheelchair.