JPH019827Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement in the steps of an escalator that is suitable for use not only by general passengers but also by disabled people who use wheelchairs.

[Conventional technology]

The depth dimension of the steps of general escalators is approximately 400 mm, but this dimension is too large for people with physical disabilities who use wheelchairs to use the escalator. Application No. 114635, Patent Application No. 1982-114635
-120493 and Japanese Patent Application No. 58-198057, the tread of any step is configured to be movable in the depth direction (back and forth direction), and only when a person with a disability uses the tread, the tread can be pulled out toward the rear wheel. We proposed a passenger conveyor that would be substantially wider.

The outline will be explained below using the drawings.

Figure 1 is a side view of the entire escalator, where 1 is the escalator body, 2 is the handrail, and 3 is the step for general passengers, and the depth dimension is approximately 400 mm as mentioned above.
Reference numeral 4 denotes a step for the disabled, which includes an auxiliary tread 5 configured to be movable in the front and back direction below the tread 6;
4' is an upper step adjacent to the handicapped step 4, and is an adjacent step having a tread that can be tilted freely and a riser that can be folded in. S1 is a stop switch for disabled people. When 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 entrance, and then the auxiliary tread 5 of the step 4 for disabled people will be stopped. While pulling it out toward the rear wheel side, the tread plate of the adjacent step 4' is tilted.

S2 is a handicapped person-specific start switch that starts the escalator after the handicapped person gets on the escalator, and S3 is a recovery switch that restores the handicapped person step 4 and the adjacent step 4' to their original state.

FIG. 2 is an enlarged perspective view of the step 4 for disabled persons, and FIG. It is about 400mm, which is the same as that.
Fig. 2b shows the state in which the auxiliary footboard 5 is pulled out so that a wheelchair can be used by a disabled person. In Fig. 2, 7 is the front wheel, 8 is the rear wheel, and 9 and 90 are the front wheels. The levers 10, 100 are rollers rotatably attached to levers 10, 100 by pins 9a, 90a, and shafts 11, 110 are rotatably supported on the bottom surface of the step 4 for the disabled via bearings (not shown). is fixed at one end. Reference numeral 12 denotes two inclined plates which function to stop the wheelchair or prevent it from falling, and are fixed to a shaft 12a rotatably provided at the tip of the auxiliary footboard 5.

FIG. 3 is an enlarged perspective view showing the inside of the step 4 for the disabled, where FIG.
The escalator is pulled out and the inclined plate 12 is rotated 180 degrees, and Fig. 3c shows the inclined plate 12 rotated approximately 180 degrees so that it is safe even if a disabled person gets on the escalator and operates the rear escalator.
The figure shows a state in which it is standing at an angle of 60 degrees, and the same reference numerals as in FIGS. A gear 14 is fixed to a shaft 15 rotatably provided on the underside of the step 4 for the disabled.
A gear fixed to one end of the gear 13, which meshes with the gear 13. 16 is a pinion fixed to the other end side of the shaft 15, and a rack 1 provided on the back surface of the auxiliary footboard 5
7 to form a rack and pinion mechanism. 18 is the other end of the shaft 110, that is, the lever 1
00 is a gear fixed to the opposite end, and 19 is a gear fixed to one end of a shaft 20 rotatably provided on the lower surface of the step 4 for the disabled.
It meshes with gear 18. 21 is a bevel gear fixed to the other end of the shaft 20; 22 is a bevel gear fixed to one end of the shaft 23 rotatably provided inside the step 4 for the disabled; There is. 24 is a chain gear fixed to the other end of the shaft 23;
25 is a chain gear fixed to the center of the shaft 12a of the inclined plate 12; 26 is a chain gear rotatably provided at the center of the front end of the auxiliary footboard 5; a chain 27 is wound between the chain gear 25 and the chain gear 25; It is hung. The chain gear 24 mentioned above is meshed with the chain 27.

Incidentally, in explaining the present invention, there is no need to specifically describe the details of the adjacent step 4' adjacent above the step 4 for the handicapped, so the explanation will be omitted.

Next, the operation of this device will be explained using the drawings.
First, when a disabled person in a wheelchair comes to the entrance of the lower floor shown in Fig. 1 and presses the stop switch S1 for the disabled, the limit switch detects, for example, a protrusion provided only on the step 4 for the disabled. A well-known detection mechanism detects when the handicapped step 4 rotates to the lower entrance and stops the escalator. Next, when the handicapped step 4 stops at the entrance, the first drive device (not shown) rotates the lever 10 about the shaft 11 in the direction toward the front of the page in FIG. 3a.

This rotational operation of the lever 10 is performed by rotating the pinion 16 counterclockwise about the shaft 15 via the shaft 11, gear 13, gear 14, and shaft 15 as shown in FIG. As shown in b, the auxiliary footboard 5 stored below the footboard 6 is sent out to the rear wheel side. At this time, the auxiliary footboard 5 is pulled out toward the rear wheel with the chain 27 wound between the chain gears 25 and 26 meshing with the chain gear 24 (the roller 90 is connected to a second drive device (not shown)). (The chain gear 24 is in a fixed state because the chain gear 24 is restrained by It rotates to the position shown in Figure 3b, creating enough space for a wheelchair to enter.

Next, when the wheelchair enters the disabled person step 4 and presses the disabled person activation switch S2, the lever 10 is activated by the second drive device (not shown).
0 is rotated about axis 110 in the direction of the arrow (shown in Figure 3b). This rotational action of the lever 100 rotates the gear 18 clockwise via the shaft 110 in FIG. In order to move in the direction of the arrow in Fig. 3b, the two inclined plates 12 rotate about 60 degrees counterclockwise around the shaft 12a, and stop at the position shown in Fig. 3c to function as a wheel stop. do. Thereafter, the escalator starts operating in the state shown in FIG. 4, and when the handicapped step 4 reaches the exit of the upper floor, the escalator is automatically stopped. When the disabled step 4 stops at the exit, a third drive (not shown) on the upper floor rotates the lever 100 via the roller 90 about the shaft 110 in the direction of the arrow in FIG. 3c. The rotational movement of this lever 100 is caused by the shaft 11
0, gear 18, gear 19, shaft 20, bevel gear 21,
22, shaft 23, chain 27 via chain gear 24
is moved in the direction of the arrow in FIG. 3c, and the two inclined plates 12 are rotated about 60 degrees clockwise about the shaft 12a to the state shown in FIG. 3b. In this state, a wheelchair can be accessed from a lower floor. Next, after the disabled person gets off the escalator, the recovery switch S
3, a fourth drive (not shown) in the upper floor moves the lever 10 through the roller 9 to the shaft 1.
1 in the direction of the arrow in FIG. 3b. This rotational movement of the lever 10 is caused by the shaft 11, gears 13, 1
4. Pull back the auxiliary footboard 5 via the shaft 15, pinion 16, and rack 17. At this time, the chain gear 25, 2
Chain 27 and chain gear 24 wrapped between 6
Since the auxiliary treadle 5 is pulled in with the two engaged, the chain 27 moves in the direction of the arrow shown in FIG. The state shown in FIGS. 2a and 3a is reached, and the size is reduced to the same size as a normal step.

[The problem that the idea aims to solve]

By the way, when a disabled person uses the escalator, the wheels of the wheelchair come into contact with the inclined plate 12 provided on the auxiliary tread 5, and a considerable load is applied to the inclined plate 12, which is also applied to the inclined plate drive mechanism. Therefore, in order for people with disabilities to use the escalator with peace of mind, the dimensions of the drive mechanism must be made larger for strength design.
There was a problem in that it was difficult to incorporate this drive mechanism device into a limited storage space.

The present invention was developed in view of the above points, and it is possible to realize space saving of the drive mechanism device, and
To provide steps for an escalator for handicapped persons with an automatic locking mechanism that can be used safely by even one handicapped person.

[Means to solve the problem]

The present invention provides a step board for at least one step among a plurality of steps constituting an escalator.
In the step of an escalator, the step is configured to be automatically movable in the front and back direction by a drive mechanism based on a command, and the rear end of the tread is provided with a rotatable inclined plate that is automatically driven to rotate via a shaft. A ratchet gear is fixed to the shaft of the inclined plate, and a disc having protrusions and recesses around the periphery is rotatably provided, and a ratchet always biased toward the disc is rotatably provided on the tread plate. provided,
The inclined plate is provided with a pin that engages with the protrusion of the disk.

[Effect]

With the above-described configuration, it is possible to automatically create a state of the escalator steps in which even a single wheelchair user can ride safely and with peace of mind.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 5 shows an embodiment of the device of the present invention, and is a detailed view of part A in FIG.
d indicates the states a to d in FIG. 6, respectively. In the drawings, the same reference numerals as in FIGS. 1 to 4 indicate the same parts, and 121 is a ratchet gear having a pawl 121a fixed to a shaft 12a to which an inclined plate is fixed;
Reference numeral 122 denotes a ratchet which is rotatably pin-coupled to the auxiliary footboard 5, and 123 a ratchet 1 that is connected to the ratchet 1 so that the ratchet 122 is always in contact with the ratchet gear 121.
A spring is provided between 22 and the auxiliary step board 5, 124 is a pin fixed to the side surface of the inclined board 12, 125 is a disk rotatably provided on the shaft 12a, and two protrusions 125a are provided around the periphery. ,12
5b and recesses 125c, 125d, and 125e.

With such a configuration, the device of the present invention performs the predetermined operations described below.

That is, when general passengers are using the escalator (when the inclined board 12 is a part of the tread 6), the disc 125 is
As a result, the ratchet 122 is moved counterclockwise against the spring pressure of the spring 123, and is not in contact with the ratchet gear 121.

Next, the disabled stop switch S1 is operated,
Inclined board 12 so that disabled people can ride the escalator
is rotated by the aforementioned mechanism, and in the process of transitioning from the state shown in FIG. 6a to the state shown in FIG. 6b, in which a wheelchair passenger can board, the disk 125 is restrained by the ratchet 122 as shown in FIG. 5a. state (the concave portion 125c of the disk 125 and the distal end portion 122a of the ratchet 122 are engaged), first, the inclined plate 1 is
2. The shaft 12a and the ratchet gear 121 begin to rotate clockwise, and the pawl 12 of the ratchet gear 121
1a passes the tip 122a of the ratchet 122, the pin 124 of the inclined plate 12
25, the disc 125 is also rotated clockwise at the same time, and the tip 122a of the ratchet 122 is moved against the disc 12.
5 into the recess 125d, and the inclined plate 12 is restrained as shown in FIG. 5b. If you are on a lower floor, a wheelchair will be boarded in this condition.

Next, when the wheelchair has been boarded and the inclined plate 12 moves from the state shown in FIG. 6b to the state shown in FIG. From the state shown in Fig. 5b, it begins to rotate counterclockwise together with the inclined plate 12 and shaft 12a while contacting the tip 122a of the ratchet 122, and after the pawl 121a of the ratchet gear 121 and the tip 122a of the ratchet 122 come into contact, Tip 122 of ratchet 122
a rotates until it passes over the pawl 121a of the ratchet gear 121 and then stops. This state is shown in Figure 5c.
In this state, even if a large load is applied to the inclined plate 12 and the inclined plate 12 attempts to rotate in the counterclockwise direction, the ratchet gear 121 remains in the ratchet 1 position.
22 and is in a locked state, the inclined plate 1
2 does not rotate.

Next, when the handicapped step 4 arrives at the exit, the inclined plate 12 is first rotated counterclockwise together with the ratchet gear 121 by the above-described mechanism, and the pin 124 of the inclined plate 12 is moved against the protrusion 12 of the disc 125.
5a, the disk 125 is also rotated counterclockwise at the same time, and the ratchet 12 is rotated against the spring pressure of the spring 123 as shown in FIG. 5d.
After separating the tip portion 122a of the rotor 2 from the ratchet gear 121 and releasing the lock of the inclined plate 12,
This time, the drive mechanism moves the inclined plate 12 along with the ratchet gear 121, and the pin 124 is moved to the disk 125.
Rotate clockwise until the tip of the ratchet 122 hits the protrusion 125b of the disc 125. From then on, the tip of the ratchet 122 along with the disc 125 touches the recess 12 of the disc 125.
5d until it is stuck in the position shown in FIG. 5b.

In this state, a wheelchair can be accessed from a lower floor.

Next, when the wheelchair passenger gets off the escalator and the post-recovery switch S3 is operated, the inclined plate 12
begins to rotate counterclockwise together with the ratchet gear 121, and the pin 124 of the inclined plate 12
After contacting the protrusion 125a of 25, the disc 125 also rotates counterclockwise, and the auxiliary tread plate 5
The step is rotated until it reaches the state shown in FIG. 5a, in which the inclined plate 12 is covered, and the step is restored to a state no different from a normal step.

[Effect of idea]

As described above, according to the present invention, a disk and a ratchet gear are respectively provided on the shafts of the inclined plate provided at the rear end of the movable tread, and when the inclined plate rotates to a certain predetermined position, it automatically moves. The system is designed to lock automatically and release the lock automatically, so it is not only safe even if there is only one wheelchair passenger, but also allows the drive device that moves the treads in the front and rear directions and the slope board to be operated. Since no large load is applied to the rotating drive device, the drive device itself can be downsized and space can be saved. Furthermore, by reducing the weight of the steps,
It also has the effect of greatly improving the efficiency of escalator installation work.

In the above description, an embodiment in which an auxiliary step board was movably provided below the step board was described, but the step board itself may be configured to be movable, and the invention is not limited to the embodiment.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of the escalator, Fig. 2 is a perspective view of the step 4 for the handicapped, Fig. 3 is a perspective view of the inside of the step 4 for the handicapped, and Fig. 4 shows a state in which a handicapped person is using the escalator. Side view showing,
FIG. 5 is a detailed diagram showing one embodiment of the device of the present invention, and FIG. 6 is a diagram showing each state. DESCRIPTION OF SYMBOLS 1... Escalator body, 4... Step for the disabled, 5... Auxiliary tread, 6... Tread, 12... Inclined board, 12a... Shaft, 121... Ratchet gear, 121a... Claw, 122... Ratchet ,1
22a... tip, 125... disk, 125
a, 125b... protrusion, 125d... recess.

Claims (1)

[Claims for Utility Model Registration] (1) The tread of at least one of the plurality of steps constituting the escalator is configured to be automatically movable in the front and rear directions by a drive mechanism based on a command, In the step of an escalator for the handicapped, the end of which is provided with a rotatable inclined plate that is automatically rotated via a shaft, a ratchet gear is fixed to the shaft of the inclined plate, and there are no protrusions or projections around the step. A disk having a concave portion is rotatably provided, a ratchet that is always biased toward the disk is rotatably provided on the step plate, and a pin that engages with the protrusion of the disk is provided on the inclined plate. Steps of an escalator for people with disabilities. (2) A utility model for persons with disabilities according to claim 1, characterized in that the inclined plate serves as a part of the treadle during normal use, a treadle when getting on and off the wheelchair, and a car stop when a passenger is using the wheelchair. escalator steps. (3) The step of an escalator for handicapped persons according to claim 1, wherein the tip of the ratchet is in contact with the outer periphery of the disk and the concave portion of the disk is in contact with the ratchet gear. . (4) The step of an escalator for disabled persons according to claim 1, wherein the inclined board is rotationally driven by an interlocking mechanism that interlocks with the movement of the step board.