JPH0144636B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in steps in an escalator for disabled persons using wheelchairs.

[Conventional technology]

The depth of normal escalator steps is approximately 400 mm, which is sufficient for general passengers to use, but when used by a physically disabled person who uses a wheelchair, etc. The downside is that it's too big to use the escalator.

For this reason, the tread of any step is configured to be movable in the depth direction (back and forth), and only when a disabled person uses the escalator, the tread is pulled out toward the rear wheels to substantially increase the depth of the tread. It is also conceivable to form the steps of an escalator.

However, if the treadle is simply pulled out, there will be a step g between the wheelchair step 1 and the adjacent normal lower step 2 at the position where the passenger gets on and off, as shown in Figure 1. Boarding did not go well, for example, JP-A-59-
In the configuration as in Publication No. 12067, where the treads are pulled out manually to widen the space, an attendant or escalator manager must always be near the disabled person to assist them, making it extremely difficult for a disabled person to safely navigate the escalator alone. Not available.
In order to prevent the footrest of a large wheelchair from getting caught on the adjacent steps, the treads must be pulled out in two stages to provide sufficient space. Additionally, as can be easily inferred from the conventional configuration shown in Figure 2, there are still problems that need to be resolved, such as vibrations during escalator operation, sudden stops, etc., which may cause the wheelchair to come off the treads or fall off. There are also many.

The object of the present invention is to provide steps for a passenger conveyor that can be safely used by even one handicapped person in a large wheelchair or the like.

[Means for solving problems]

The present invention provides an escalator in which a tread plate of at least one of a plurality of steps constituting the escalator is movable in the front and back direction, and an upper step adjacent to the movable step is configured to be freely tiltable; A movable inclined plate is provided on the rear end side of the tread plate of the movable step.

[Effect]

With the configuration as described above, it is possible to secure enough space for even a large wheelchair or the like to ride with only one step of the pulling operation, and it is possible to prevent the possibility of falling accidents while operating the escalator.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 is a side view of the entire escalator according to the present invention, in which 1 is the escalator body, 2 is a handrail, and 3 is a step for general passengers, and the depth dimension is approximately 400 mm.
Reference numeral 4 denotes a step for disabled persons whose tread is movable in the front and rear directions, and 4' is an upper step adjacent to the step 4 for disabled persons. This is the adjacent step.

S1 is a stop switch exclusively for disabled people.If a disabled person wants to use the escalator, if he or she presses this switch S1, the step 4 for disabled people will automatically stop at the boarding entrance, and then the escalator 4 for disabled people will be stopped.
The tread plate of the step 4' is pulled forward by a mechanism to be described later, and the tread plate of the adjacent step 4' is tilted by a mechanism to be described later. S2 is a start switch for the handicapped person that starts the escalator after the handicapped person gets on the escalator, and S3 is a recovery switch for restoring the step 4 for the handicapped person and the adjacent step 4'.

Fig. 4 is an enlarged perspective view of the step 4 for the disabled, and Fig. 4a shows the normal state in which the step board 6 is stored, and the depth dimension L is about 400 mm, which is the same as the step for general passengers. .

Fig. 4b shows the state in which the treadle 6 is pulled out so that a wheelchair can be used by a disabled person. In Fig. 4, 7 is the front wheel, 8 is the rear wheel, and 9 and 90 are the pins. The rollers 9a, 90a are rotatably attached to levers 10, 100, and the levers 10, 100 are attached to shafts 11, 110 rotatably supported on the bottom surface of the step 4 for disabled persons via bearings (not shown). fixed at one end. Reference numeral 12 denotes an inclined plate that functions as a wheel stopper for a wheelchair, and is fixed to a shaft 12a rotatably provided at the tip of the footboard 6.

FIG. 5 is an enlarged perspective view showing the inside of the step 4 for the disabled. FIG. 5 a shows the normal case, and FIG. Figure 5c shows a state in which the inclined plate 12 is erected at an angle of approximately 60° to ensure safety even if a disabled person gets on the escalator and operates the escalator after the escalator is operated. Items with the same reference numerals as those in the drawings indicate the same items, except that 13 is a gear fixed to the other end of the shaft 11, that is, the end opposite to where the lever 10 is provided, and 14 is a gear fixed to the lower surface of the step 4 for the disabled. This gear is fixed to one end of a freely movable shaft 15 and meshes with the gear 13. A pinion 16 is fixed to the other end of the shaft 15, and is engaged with a rack 17 provided on the back surface of the footboard 6 to form a rack and pinion mechanism. 18
19 is a gear fixed to the other end of the shaft 110, that is, the end opposite to where the lever 100 is provided; gear 1
It meshes with 8. A pinion 21 is fixed to the other end of the shaft 20, and is engaged with a rack 22 provided on the side of the back surface of the footboard 6 to form a rack and pinion mechanism. 23 is a gear fixed to one end of the shaft 12a of the inclined plate 12; 24 is a chain gear rotatably provided on one side of the front end of the footboard 6, that is, on the same side as the chain gear 23; is chain 2
5 is wrapped around it. A rack 22 is fixed to the chain 25.

Reference numerals 26 and 27 are links provided parallel to each other on both sides of the step 4 (only one side is shown), and one end of these links 26 and 27 is connected to a closing plate 28 that closes the hole when the footboard 6 is pulled out backwards. The other end is rotatably attached to the side surfaces of the step 4 by pins 26a and 27a, and the other end is rotatably attached to the inner surfaces of both sides of the step 4 for the handicapped person by pins 26b and 27b. 29 has a pin 29a in the middle of the link at one end.
The other end is rotatably attached to the front end side of the footboard 6 by a pin 29b. 30 is a switching guide rail that is driven horizontally by a hydraulic device 31 and engages with the roller 9 to operate the lever 10; 130 is a switching guide rail that is driven horizontally by the hydraulic device 131 and engages with the roller 90 to operate the lever 110; This is a switching guide rail to be operated.

On the other hand, FIG. 6 is an enlarged perspective view of the adjacent step 4' adjacent above the step 4 for the disabled.
FIG. 6a shows the normal state in which the step board 6' is in a horizontal state, and the depth dimension L is about 400 mm, which is the same as that of the general passenger step. Furthermore, Fig. 6b shows a state in which the footboard 6' is inclined so that the footrest of the wheelchair does not get in the way as shown in Fig. 2 when used by a disabled person. 8' is a front wheel, 8' is a rear wheel, 9' is a roller rotatably attached to a lever 10' by a pin 9'a, and the lever 10' is rotatably attached to the bottom of an adjacent step 4' via a bearing (not shown). A spring 4 is fixed to one end of a freely movably supported shaft 11' and is normally provided between the lever 10' and the inner surface of the step 4'.
0, the stopper 4 is pulled toward the side of the step.
It is in contact with 1.

FIG. 7 is an enlarged perspective view showing the inside of the adjacent step 4', where FIG. , the riser 42 is shown folded onto the underside of the step 4',
In the figure, the same reference numerals as in FIG.
A bevel gear 44 is fixed to the opposite end of the step 4', and a shaft 4 lying in the width direction of the step 4' is rotatably supported on one side of the step 4'.
This is a bevel gear fixed to one end of the bevel gear 5 and meshes with the bevel gear 43. 46 is a lever fixed to the other end of the shaft 45, and 47 is connected to the lever 4 by a pin 47a at one end.
6, and the other end is rotatably connected to the lever 48 by a pin 47b,
The other end of the lever 48 is rotatably supported by a shaft 49.
is fixed at one end. A lever 50 has one end fixed to the other end of the shaft 49, and a bar 52 having a rotatable roller 51 is fixed to the other end.
The left and right levers 50 (the left lever 50 is not shown because of left-right symmetry) are connected via the lever. 5
3 is a shaft fixed below the front end of step 4';
The shaft 53 and the footboard 6' are connected by a hinge 54. 55 is a link whose one end is rotatably attached via a pin 55a to a link mounting plate 56 fixed approximately at the center of the shaft 53, and the other end is rotatably supported on the bottom surface of the treadle 6'. It is rotatably connected to a link mounting plate 57 fixed to one end of the shaft 58 via a pin 55b. 59 is a gear fixed to the other end of the shaft 58, and 60 is a shaft rotatably attached to the footboard 6' via a bearing (not shown) and fixed to the back surface of the riser 42 via a bracket 61. A gear 62 is fixed approximately at the center of the shaft 60, and the gear 62 and the gear 59 mesh with each other. Reference numeral 70 denotes a switching guide rail that engages with a roller 9' driven horizontally by a hydraulic device 71 to operate a lever 10', and 73 a guide that guides the roller 9' when operating the escalator with a handicapped person on board. It's a rail.

Next, the operation of the apparatus of the present invention will be explained using the drawings.

During normal driving, the steps for the disabled are shown in Figure 4a.
And as shown in FIGS.
90 and 9' are switching guide rails 3 near the entrances and exits in the lower and upper parts of the escalator.
0, 130 and 70 (shown in FIGS. 5a and 7a), the external structure and movement are no different from normal steps. here,
When a disabled person in a wheelchair comes to the entrance of the lower floor shown in FIG. 3 and presses the disabled stop switch S1, the well-known limit switch detects a protrusion provided only on the handicapped step 4, for example. A detection mechanism detects when the handicapped step 4 rotates to the lower entrance and stops the escalator. Next, step 4 for people with disabilities.
When the vehicle stops at the boarding gate, the switching guide rail 30
and 70 are horizontally moved by drive devices 31 and 71 consisting of hydraulic devices, etc., and this operation causes the lever 10 to rotate in the direction toward the front of the page about the shaft 11 in FIG. axis 1
Rotate in the depth direction of the paper surface around 1'.

First, this rotational movement of the lever 10 is shown in FIGS. 5a and 5b.
The pinion 16 is rotated counterclockwise about the shaft 15 through the rack 17, and the pinion 16 is rotated counterclockwise through the rack 17 as shown in FIG.
As shown in FIG.
Links 26, 27, 29 and pins 26a, 26b,
A hole made by sending out the footboard 6 is closed with a board 28 by a link mechanism composed of 27a, 27b, 29a, and 29b. At this time, the treadle 6 is pulled out rearward with the pinion 21 and the rack 22 fixed to the chain 25 wound between the chain gears 23 and 24 engaged, so that the chain 25 is moved as shown in FIG. 5a. Moving in the direction of the arrow, the inclined plate 12 rotates 180 degrees clockwise around the shaft 12a, as shown in Fig. 5b.
The state shown in is reached. Here, the extent to which the treadle 6 is pulled out is determined by the operation of the lever 10, so when a disabled person is using the escalator, the roller 9 is guided by a guide rail or the lever 10 is A locking mechanism is provided at the lever 10 to prevent the lever 10 from rotating while the escalator is in operation.

On the other hand, the rotational operation of the lever 10' is performed by rotating the shaft 45 clockwise via the shaft 11', bevel gear 43, and bevel gear 44 in FIGS. 7a and 7b.
6. To rotate the lever 50 counterclockwise around the shaft 49 via the pin 47a, link 47, pin 47b, lever 48, and shaft 49 to move the support position of the footboard 6' by the roller 51 downward; The footboard 6' is tilted downward about a shaft 53 by a hinge 54. According to this tilting movement, link 5
5 causes the link mounting plate 57 to be pushed backward, causing the shaft 58 to rotate counterclockwise, and the gear 5
9, the riser 42 is folded into the lower part of the tread plate 6' via the gear 62, the shaft 60, and the bracket 61.
The state shown in Figure b is reached. Therefore, the above-mentioned two operations, namely the pulling out movement of the handicapped step 4 and the tilting movement of the adjacent step 4' and the riser 42
The folding operations are performed in parallel to create a space sufficient for a wheelchair as shown in Figure 8.

The inclination of the footboard 6' at this adjacent step 4' is determined by the guide rail 7 along which the roller 9' is guided.
3, so the guide rail 73 has an appropriate shape so that it has a large inclination in the slope section and a slight inclination in the horizontal section.
are provided on all sections of the escalator.

Next, when the wheelchair enters the handicapped step 4 and presses the disabled handicap start switch S2, the switching guide rail 130 shown in FIG.
This action causes the lever 100 to be centered on the arrow (5th
(shown in Figure b). This lever 10
0 rotates the gear 18 counterclockwise via the shaft 110 in FIG. 5b, and the gear 19,
In order to move the chain 23 in the direction of the arrow in FIG. 5b via the shaft 20, the pinion 21, and the rack 22, the inclined plate 12 is rotated approximately 60 degrees counterclockwise about the shaft 12a to move the chain 23 in the direction of the arrow in FIG. 5c. It stops at the position and acts as a stop. Thereafter, the escalator starts operating in the state shown in FIG. 9, and when the handicapped step 4 reaches the exit of the upper floor, the escalator is automatically stopped. When the handicapped person's step 4 stops at the exit, the switching guide rail 130 of the handicapped person's step 4 on the upper floor is horizontally moved toward the front in the drawing by a drive device 131 consisting of a hydraulic device or the like in FIG. The lever 100 is rotated about the shaft 110 in the direction of the arrow in FIG. 5c. This rotational action of the lever 90 moves the chain 25 in the direction of the arrow in FIG. Rotate it approximately 60 degrees clockwise until it is in the state shown in Figure 5b.
In this state, a wheelchair can be accessed from a lower floor. Next, after the disabled person gets off the escalator, when he presses the recovery switch S3, the switching guide rail 30 of the step 4 for disabled people on the upper floor and the switching guide rail 70 of the adjacent step 4' are changed as shown in FIGS. 5b and 7b. The levers 10, 10' move horizontally toward the back of the page or the front of the page by drive devices 31 and 71, which are comprised of hydraulic devices, etc., and the levers 10, 10' move along the shaft 1 as the switching guide rail moves horizontally.
1, 11', and rotate in the direction of the arrow.

First, this rotational movement of the lever 10 causes the treadle 6 to be pulled back via the shaft 11, gear 13, gear 14, shaft 15, pinion 16, rack 17, and the pin 29a, link 29, pin 29b, link 27,
The closing plate 28 is pulled into the inside of the step 4 for the disabled via the pin 27a. At this time, the chain gears 23, 24
Since the treadle 6 is pulled in with the pinion 21 and the rack 22 fixed to the chain 25 wound therebetween engaged, the chain 25 moves in the direction of the arrow shown in FIG. is axis 1
Rotate 180° counterclockwise around 2a and turn to Figure 4a.
The step becomes the state shown in FIG. 5a, and is reduced to a size no different from a normal step.

On the other hand, the rotational movement of the lever 10' is shown in FIG.
Lever 46, pin 47a, link 47, pin 47
b. The lever 50 is rotated clockwise around the shaft 49 via the lever 48 and the shaft 49, and the support position of the tread plate 6' by the roller 51 is moved upward, so the tread plate 6', which remains slightly tilted, is hinged. As the shaft 54 rotates counterclockwise around the shaft 53, the link mounting plate 57 receives a forward pulling force from the link 55, causing the shaft 58 to rotate clockwise, and the gear 59, gear 62, and shaft 60 , the riser 42 appears rearward on the step side via the bracket 61, returning to the normal step state shown in FIGS. 6a and 7a. Therefore, the two operations described above, namely the retracting movement of the handicapped step 4 and the rotation of the adjacent step 4', are performed in parallel, and the escalator is restored to the same state as a normal escalator.

〔Effect of the invention〕

As described above, according to the present invention, by simply ensuring the depth dimension of approximately two treadboards, even in a large wheelchair, the footrest part will not get caught on the steps, and Since a sloped plate that functions as a car stop is movably provided on the rear end side of the tread of the step that is movable in the direction, it is also possible to prevent an accident in which a wheelchair or the like falls while operating the escalator.

In the above explanation, a case has been described in which a handicapped person gets on an escalator from a lower floor and gets off at an upper floor. However, the present invention can be implemented without any essentially changes even when a person with a disability gets on an escalator from an upper floor and gets off at a lower floor.

Incidentally, the inclined plate 12 driven by the chain 25 is provided to form a part of the treadle 6 during normal operation, and is used as a treadle when getting on and off a wheelchair, and also serves as a stopper when a wheelchair passenger is using the escalator. Even if the slope plate 12 is simply provided, depending on how the passenger conveyor stops, as shown in FIG. 10, the slope plate 12
There is also a difference in level between the step plate 12 and the lower step 3 for general passengers, which prevents it from fully fulfilling its role as a step plate.Furthermore, when returning to the normal steps after using a wheelchair, the inclined plate 12 as shown in FIG. There is a risk that the step will not be completely accommodated and may fall out.

However, as shown in FIG. 12, for example, if a compression spring 81 is provided on the treadle 6 to constantly apply tension to the chain 25 that drives the inclined plate 12, then the inclined plate
2 and the general passenger step 3 below, when the wheels 82 of the wheelchair come into contact with the inclined plate 12, a force is applied to rotate the inclined plate 12 clockwise, and as a result, the gear 23 Chain 2 through
5 in the direction of the arrow, as shown in FIG. 13, the lower half of the chain 25 becomes slightly loosened, but the upper half of the chain 25 is stretched almost horizontally while compressing the compression spring 81, resulting in a step. This can make it easier for wheelchairs to get in. On the other hand, with this configuration, when the general passenger uses the wheelchair, if the treadle 6 is driven a little more, the chain 25 is tensioned by the spring pressure of the compression spring 81, as shown in FIG. Since a counterclockwise rotational force is applied to the gear 23, the inclined plate 12 can always be stored flush with the handicapped step 4.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of the steps of a wheelchair escalator in the boarding and alighting position, Fig. 2 is a side view showing how the steps of a conventional wheelchair escalator are used, and Fig. 3 is an overall side view of the escalator according to the present invention. 4 is a perspective view of the step 4 for the disabled, FIG. 5 is a perspective view of the interior of the step 4 for the disabled, FIG. 6 is a perspective view of the adjacent step 4', and FIG. 7 is a perspective view of the interior of the adjacent step 4'. , FIG. 8 is an overall perspective view of the step of the escalator for the handicapped person according to the present invention at the boarding and alighting position, FIG. 9 is a side view showing how the step of the escalator for the handicapped person according to the present invention is used, and FIG. 10 to FIG. FIG. 3 is an explanatory diagram illustrating the operation of the invention device. DESCRIPTION OF SYMBOLS 1...Escalator main body, 3...Steps for general passengers, 4...Steps for disabled persons, 6...Treadboards, 12...Slanted boards, 25...Chains, 81...Compression springs.

Claims (1)

[Scope of Claims] 1. In an escalator in which the tread of at least one of a plurality of steps constituting the escalator is movable in the front and back direction, the upper step adjacent to the movable step is tiltable. 1. A step for an escalator for a handicapped person, characterized in that a rotatable inclined plate is provided on the rear end side of the tread of the movable step. 2. The handicapped person according to claim 1, wherein the inclined plate is configured to serve as a part of the treadle during normal times, a treadle when getting on and off a wheelchair, and a car stop when a passenger is using a wheelchair. escalator steps. 3. The step of an escalator for disabled persons according to claim 1, wherein the inclined plate is fixed to a rotating shaft and driven by a chain. 4. The step of an escalator for handicapped persons according to claim 3, wherein the chain for driving the inclined plate is provided with a mechanism capable of appropriately adjusting the amount of deflection. 5. The movable step is configured such that the step plate is automatically movable in the front and back direction by a drive mechanism based on a command.
Escalator steps for disabled persons as described in Section 1. 6. The escalator for disabled persons according to claim 1, wherein the inclined plate is configured to be automatically driven by an interlocking mechanism that interlocks with the movement of the tread of the movable step. Step.