JPH0250037B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in the steps of an escalator suitable for use by persons other than general passengers, such as disabled persons using 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. Patent Application No. 114635 (1982)
-6583 Publication), Japanese Patent Application No. 120493 (Sho 58-120493)
-12487), Japanese Patent Application No. 198057 (1982)
-93089 Publication), Japanese Patent Application No. 134340 (Sho 59-134340)
-12584 Publication), the tread of any step can be freely pulled out in the depth direction (back and forth direction),
We proposed a passenger conveyor in which the treads are pulled out toward the rear wheels, making the treads substantially wider, only when used by people with disabilities.

The outline will be explained below using the drawings.

Figure 2 is an overall side view of an escalator for the handicapped, where 1 is the escalator body, 2 is the handrail, and 3 is the step for general passengers, and the depth dimension is approximately as described above.
It is 400mm. Reference numeral 4 denotes a step for the handicapped, which includes an auxiliary step 5 that can be freely pulled out in the front-rear direction below the step 6, and 4' is an upper step adjacent to the step 4 for the handicapped, which allows the step to be freely tilted and a riser that folds in. Adjacent steps can be freely configured. 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 handicapped step 4 will automatically stop at the boarding entrance, and then the handicapped step 4 will be stopped.
The auxiliary footboard 5 of the step 4 is pulled out toward the rear wheel, and the footboard 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. 3 is an enlarged perspective view of the step 4 for disabled persons, and FIG. It is about 400mm, which is the same as that.
Further, Fig. 3b 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. 3, 7 is the front wheel, 8 is the rear wheel, and 9 and 90 are the Rollers are rotatably attached to levers 10, 100 by pins 9a, 90a, and levers 10, 100 are rotatably supported by shafts 11, 110 via bearings (not shown) on the bottom of the step 4 for disabled persons. is fixed at one end. Reference numeral 12 denotes two inclined plates having the function of blocking the wheelchair, and are fixed to a shaft 12a rotatably provided at the rear end of the auxiliary footboard 5.

FIG. 4 is an enlarged perspective view showing the inside of the step 4 for disabled persons. FIG. 4 a shows the normal case, and FIG.
The escalator is pulled out and the inclined plate 12 is rotated 180 degrees, and in Fig. 4c, the inclined plate 12 is 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 the 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 being 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 handicapped step 4, so the description 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. 2 and presses the stop switch S1 for disabled persons, the limit switch detects, for example, a protrusion provided only on step 4 for disabled persons. 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. 4a.

This rotational operation of the lever 10 is performed by rotating the pinion 16 counterclockwise around 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 4b, 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 FIG. 4b). 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. 4b, the two inclined plates 12 are moved around the axis 12a.
It rotates approximately 60 degrees counterclockwise and stops at the position shown in Figure 4c, acting as a wheel stop. Thereafter, the escalator starts operating in the state shown in FIG. 5, 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. 4c. The operation of this lever 100 consists of a shaft 110, a gear 18, a gear 19, a shaft 20, bevel gears 21, 22,
The chain 27 is connected to the fourth chain via the shaft 23 and the chain gear 24.
Move the two inclined plates 1 in the direction of the arrow in figure c.
2 is rotated approximately 60 degrees clockwise about the shaft 12a to the state shown in FIG. 4b. In this state, a wheelchair can be accessed from a lower floor. Next, when the disabled person presses the recovery switch S3 after getting off the escalator, a fourth drive device (not shown) on the upper floor moves the lever 10 through the roller 9 about the shaft 11 in the direction of the arrow in FIG. 4b. Rotate to Lever 1
This rotational movement of 0 pulls back the auxiliary footplate 5 via the shaft 11, gears 13, 14, shaft 15, pinion 16 and rack 17. At this time, the auxiliary treadle 5 is retracted with the chain 27 wound between the chain gears 25 and 26 meshing with the chain gear 24.
The chain 27 moves in the direction of the arrow shown in FIG. 4b, and the inclined plate 12 moves counterclockwise around the shaft 12a.
It is rotated 180 degrees to the state shown in FIGS. 3a and 4a, and is reduced to a size no different from a normal step.

[Problem that the invention seeks to solve]

By the way, in the structure of the inclined plate 12 which is used to stop a car by cutting out a part of the tread plate 6 and rotating it, if sand, dirt, etc. are caught between the auxiliary tread plate 5 and the inclined plate 12, the mechanism prevents the gear from collapsing. There is a possibility that the inclined plate 12 will not be in complete contact with the auxiliary tread 5 and will return to a floating state due to the collapse of the escalator and the elongation of the chain, which may impede the normal operation of the escalator.

The present invention has been made in view of the above points, and an object of the present invention is to provide a step for an escalator for the handicapped that is free from failure due to clogging with dirt or the like.

[Means for solving problems]

The present invention provides an auxiliary treadboard below the treadboard of at least one of a plurality of steps constituting an escalator, and in which the auxiliary treadboard is configured to be movable in the longitudinal direction, a portion of the treadboard near the riser The footboard is rotatably supported by a fixed portion of the footboard at a location near the center, and a portion of the footboard is configured to be tiltable in response to movement of the auxiliary footboard.

〔Example〕

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

Figures 1, 6 and 7 show an embodiment of the present invention, and are equivalent to the conventional figure 5 and 3, respectively.
FIG. 8 is an overall perspective view of the step of the present invention in the getting-on/off position.

In the figure, the same reference numerals as in FIGS. 2 to 5 indicate the same thing, and 60 is a treadle according to the present invention, and parts 61 and 62 of the treadle 60 are hinged at one end near the center of the treadle 60, for example. It is rotatably supported by 61a, 62a, etc., and the other end left and right are auxiliary footboards 50, which will be described later.
It is guided and supported via a pin 60a by a guide rail 50b provided with an appropriate inclination on the side surface of the convex portion 50a. This auxiliary footboard 50 is built-in below the footboard 60 so as to be freely movable in the front and back direction as in the conventional case, and has a shaft 50c rotatably provided at the rear end.
Inclined plates 51 and 52 according to the present invention are rotatably attached via a chain gear 25 (a chain gear 25 is fixed to the center of the shaft 50c). The inclined plates 51 and 52 are different from the conventional one and are made up of only a part of the riser 40 of the step 4 for the disabled.

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

That is, when a general passenger is using the escalator, the auxiliary tread 50 is completely stored below the tread 60 as shown in FIG. 6a, and the parts 61 and 62 of the tread are in a horizontal state. It forms part of the step board 60, and the inclined boards 51 and 52 also form part of the riser 40, so that the step is no different from a normal step.

Next, when the handicapped person stop switch S1 is operated and the auxiliary footboard 50 is pulled out by a mechanism similar to the conventional one so that the handicapped person can get on the escalator, the chain 27, which is wound between the chain gears 25 and 26, Since the auxiliary treadle 50 is pulled out toward the rear wheel while being engaged with the chain gear 24, the chain 27 moves in the direction of the arrow shown in FIG. 7a, and the inclined plates 51 and 52 move clockwise around the shaft 50c. to about
At the same time as rotating 90 degrees, parts 61, 6 of the tread plate 60
2 is guided by a guide rail 50b provided in an appropriately inclined state on the side surface of the convex portion 50a of the auxiliary footboard 50, and rotates clockwise to form a slope that eliminates the level difference, as shown in FIGS. 7b and 8. state,
Create enough space for a wheelchair to fit comfortably.

Note that the rotation angle of the inclined plates 51 and 52 in this case can also be changed by changing the number of teeth of the chain gears 25 and 26; It can also be changed by operating the lever 100 for a certain period of time so as to rotate the chain gear 24 so that it is not rotated by the chain 27. It is also possible to rotate the auxiliary step board 50 clockwise after it has been pulled out to some extent.

Next, when the wheelchair enters the handicapped person step 4 and presses the handicapped person activation switch S2, the lever 100 is rotated about the shaft 110 in the direction of the arrow (shown in FIG. 7b), as in the conventional case, and the chain 27 To move in the direction of the arrow in Figure 7b,
The inclined plates 51 and 52 rotate about 90 degrees counterclockwise about the shaft 50c and stop at the position shown in FIG. 7c, thereby functioning as a wheel stop. Thereafter, the escalator starts operating in the state shown in FIG. , 52 clockwise about 90 degrees around the shaft 50c to bring it to the state shown in FIG. 7b, then by operating the recovery switch S3, the lever 10 is rotated around the shaft 11 in the direction of the arrow in FIG. 7b. Then, the auxiliary footboard 50 is stored below the footboard 60. At this time as well, chain gear 2
Since the auxiliary footboard 50 is retracted with the chain gear 24 meshed with the chain 27 wound between the chain 27 and the chain gear 24, the chain 27 moves in the direction of the arrow shown in FIG. 52 is the shaft 50c
Rotate about 90 degrees counterclockwise around
Parts 61 and 62 of the treadle 60 are guided by the guide rails 50b of the auxiliary treadle 50 and rotate counterclockwise to return to the horizontal state and completely return to the state shown in FIGS. 6a and 7a.

〔Effect of the invention〕

As described above, according to the present invention, a part of the treadle is rotatably supported in accordance with the movement of the auxiliary treadboard so as to eliminate the level difference between the auxiliary treadboard and the treadboard, so that the function of the car stopper is improved. The inclined plate can now be constructed from only a portion of the riser, so even if dirt or the like adheres to this inclined plate, the tread will not lift up when the auxiliary tread is retracted, and normal escalator operation will be disrupted. This will no longer cause any problems.

[Brief explanation of drawings]

Fig. 1 is a side view showing a disabled person using the escalator according to the present invention, Fig. 2 is an overall side view of the escalator for the disabled, Fig. 3 is a perspective view of a conventional step for the disabled, and Fig. 4 is a side view of the escalator according to the present invention. FIG. 5 is a side view showing a state in which a handicapped person is using the conventional escalator; FIG. 6 is a perspective view of a step for handicapped persons showing an embodiment of the present invention; FIG. 7 is an internal transparent perspective view of a step for a handicapped person showing an embodiment of the present invention, and FIG. 8 is an overall perspective view of the escalator step according to the present invention in the boarding/alighting position. DESCRIPTION OF SYMBOLS 1... Escalator main body, 4... Steps for disabled persons, 5, 50... Auxiliary treads, 6, 60... Treadboards, 12, 51, 52... Inclined plates, 40... Riser, 12a, 50c... Shafts.

Claims (1)

[Scope of Claims] 1. An auxiliary tread is provided below the tread of at least one step among a plurality of steps constituting an escalator, and the auxiliary tread is configured to be movable in the front-back direction, wherein the tread is closer to the riser. for persons with disabilities, wherein a part of the footboard is rotatably supported by a fixed part of the footboard at a location near the center, and a part of the footboard is configured to be tiltable in accordance with the movement of the auxiliary footboard. escalator steps. 2. The auxiliary step board is provided with a bent guide rail, and a portion of the step board is provided with a pin so that the pin is guided by the guide rail. Escalator steps for the disabled listed. 3. The step of an escalator for the handicapped as claimed in claim 1, wherein the auxiliary step board is a step board having a rotatable inclined board at the rear end which normally constitutes only a part of the riser.