JPH0141594B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a wheelchair auxiliary trolley for an escalator used when a wheelchair user uses an escalator.

[Technical background of the invention and its problems]

BACKGROUND OF THE INVENTION With the development of transportation systems, railway station platforms and the like have been installed higher or lower than ground level, and as a result, an increasing number of stations have installed escalators to improve passenger convenience.

However, it is extremely difficult for wheelchair users to use escalators, and even if they get on the escalator with an attendant, they will not be able to place the wheelchair horizontally on top of the first step of the escalator; Since the user has no choice but to straddle steps and tilt the wheelchair, there is a high possibility that the wheelchair will fall, which is extremely dangerous.

Additionally, escalators with a special structure that carry both wheelchairs and general passengers cannot often be installed due to the structure of station buildings, etc. On the other hand, there are places where escalators exclusively for wheelchairs are installed, but they are not escalators for general users. The disadvantage is that it must be installed separately.

Therefore, in order to eliminate the above-mentioned drawbacks, the present applicant has filed a patent application separately from this invention for a wheelchair auxiliary cart for escalators having the structure shown in FIGS. 1 and 2.

Below, the bogie structure related to this separate application will be described as
To explain according to the drawings in Figures 2 and 2, 1 in the figure is a trolley body on which wheelchair B on which wheelchair user A rides is placed, a floor plate 2 on which wheelchair B is placed, and an attendant fixed upright on both the left and right sides of this floor plate. C is equipped with mounting rods 3a on both sides of the rear and handle rods 3b on both sides of the front that can be held and pushed by hand, and consists of front wheels 4 and rotatable casters on both sides of the front and rear of the trolley body 1. The rear wheels 5 are pivoted with a distance between the axes spanning three escalator steps S. 6 moves the trolley body 1 carrying the wheelchair B from the horizontal step SL of the escalator to form a staircase as shown in Fig. 2;
Or vice versa, it is a device that raises and lowers the rear wheels in accordance with the step horizontal formation movement from the step section SK, and always maintains the horizontal state. A hydraulic cylinder 7 that operates a piston in the step direction is installed vertically on the rear wheel side, and a step grounding body is attached to the lower end of the piston rod 7a of this hydraulic cylinder with a pivot pin 8 so as to be tiltable back and forth. 9, and a hydraulic power unit 10 (pump, motor, oil tank) that is mounted on the truck body 1 and operates the hydraulic cylinder 7 by an attendant C's switch operation.
and a battery 11 for its operating power source. The operating switch 12 for operating the hydraulic cylinder 7 is operated by an attendant C on the rear handle lever 3a.
is provided on the handle that is held by hand.

Therefore, to explain how to use the auxiliary trolley related to the separate application structured as described above, first, attendant C who has been pushing wheelchair B stops wheelchair B near the escalator entrance, and then The wheelchair B loaded with the user is placed on the prepared auxiliary trolley, and the auxiliary trolley carrying the wheelchair is pushed to the escalator entrance (hereinafter, the case of descending entrance will be described). After waiting for it to stop, the cart is positioned on the lower step horizontal part SL of the escalator steps S as shown in the lower left view of FIG. 2, and is stopped. After boarding the cart, the escalator is started and the escalator is stopped when the cart reaches the upper step horizontal portion SH of the escalator, thereby performing manual or automatic escalator operation. In this case, the attendant C lowers the hydraulic cylinder 7 by operating a switch in accordance with the stair formation movement from the lower step horizontal part SL of the escalator, and brings the step contact body 9 at the lower end of the piston rod 7a into contact with the step surface. The trolley body 1 on which wheelchair B is placed is placed on the floor and pushed up by its contact with the floor.
The front wheel 4 is used as a fulcrum to raise the rear wheel side as shown in the middle diagram of FIG. 2, and the rear wheel is moved upward while always maintaining a horizontal state. Then, the escalator step S moves from the staircase part SK to the upper stair step horizontal part SH.
Immediately before the step transitions to and stops, the operation switch 12 is activated again, and the hydraulic cylinder 7 and the step contact body 9 at the lower end of the cylinder piston rod 7a are activated in accordance with the step horizontal formation movement from the step section SK. to operate the rise. In this way, the auxiliary trolley carrying a wheelchair can be raised from the lower floor entrance of the escalator to the upper floor entrance in a state that is always maintained horizontally, and the upper step horizontal part SH of the escalator can be raised as shown in Figure 1. The auxiliary trolley loaded with a wheelchair that has been stopped for transportation can be easily pushed out to the floor side of the upper escalator entrance with the intermediate wheels 13 and front wheels 4 brought into contact with the floor by raising the hydraulic cylinder 7.

The structure and operation of the wheelchair auxiliary trolley related to the above-mentioned separate application are as described above, but this auxiliary trolley has a high level difference between the trolley body 1 and the floor surface on which the trolley runs, so that the wheelchair B cannot be placed on the main body floor plate 2. It is difficult to put it on the body 1 or take it down from the main body 1,
Since the hydraulic power unit 10 and battery 11 are mounted on the side part of the truck body 1,
There are problems with the width of the trolley making it difficult to place it easily on the escalator, and the center of gravity of the trolley carrying Wheelchair B is shifted to the front, making it difficult for the wheelchair to be loaded during an emergency stop on the escalator (especially during an emergency stop when descending). Problems that needed to be improved were raised, such as the risk of the auxiliary trolley rolling down.

[Purpose of the invention]

This invention was made in order to solve the problems mentioned above in the above-mentioned separate application, and it can be compactly accommodated within the step width of an escalator, the center of gravity of the trolley is biased as far as possible to the rear, and it is possible to move up and down with good stability. An object of the present invention is to provide a wheelchair auxiliary cart for an escalator, which is constructed so that the work of loading and unloading the wheelchair onto and from the cart can be easily performed.

[Summary of the invention]

This invention takes advantage of the characteristics of general wheelchairs, and utilizes the space surrounded by the wheelchair user's footrest, large wheels on both sides, and the chair seating area, as well as the lower opening at the rear of the chair seating area to horizontally move the trolley. A hydraulic power unit and a battery of the maintenance device are mounted on the trolley body at a center position of the width of the trolley that fits under the mounted wheelchair, in an arrangement such that the battery is located at the rear end of the trolley body and the power unit is located at the front side thereof. In addition, the floor plate of the trolley body on which the wheelchair rests is constructed from two elongated floor plates at the front and back of the platform with a width slightly larger than the horizontal rotating diameter of the wheelchair caster from the underframe on both sides. It is located on the upper floor side and can be moved up and down with good stability, and the width of the trolley body can be made compact. A bridge board is installed between the trolley and the floor in an inclined state, and is otherwise stored under the floorboard for guiding wheelchairs in and out, so that wheelchairs can easily get on and off the trolley body. It is characterized by the following.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings in FIGS. 3 and 4. This wheelchair auxiliary trolley for escalators allows wheelchair user A to use the escalator accompanied by an attendant C. A trolley body 1 on which a wheelchair B can be placed and pushed; front and rear wheels 4 pivoted to the front and rear parts of the trolley body at a spacing between the front and rear axles spanning the two steps of the escalator steps S; 5, and a step part SK provided in the trolley body 1 to form a staircase from the horizontal step part SL of the escalator, or vice versa.
The above-mentioned truck is equipped with a hydraulic cylinder type truck horizontal maintenance device 6 that raises and lowers the rear wheel side of the truck main body 1 on which the wheelchair B is placed in accordance with the step horizontal formation movement from In a wheelchair auxiliary trolley having a structure substantially similar to that of the separate application, the hydraulic power unit 10 and battery 11 of the hydraulic cylinder 7 are installed on the lower side of the mounted wheelchair B of the trolley body 1 (the user's foot rest part B2 of the wheelchair B). , the space surrounded by the left and right large wheels B3, the chair seat B4, and the rear opening of the wheelchair B), the battery 11 is located on the rear end side of the trolley body 1, The power unit 10 is mounted in an arrangement located on the front side thereof, and the bogie body 1
The floorboard 2 on which the wheelchair B rests is attached to the underframes 1a and 1 on both sides of the main body.
From b, it is made up of two elongated floor plates 2a, 2b on both sides at the front and back with a plate width p slightly larger than the horizontal rotating diameter d of the wheelchair caster B1, and when wheelchair B is placed on the underside of these two floor plates 2a, 2b on both sides. The cart is pulled out to the rear as shown in Fig. 3 and bridged between the cart and the floor in an inclined state, and at other times it is pulled in and stored in the lower storage boxes 15, 15 of the floor plates 2a, 2b as shown in Fig. 4. It is characterized by the provision of bridge plates 14a and 14b for guiding wheelchair loading and unloading. In addition, in the illustrated example, the bridge plates 14a and 14b are configured to be taken in and out by manual operation, but
It may be configured to be moved in and out by mechanical operation.

In the figure, 1c indicates a cross beam that connects the main body frames 1a and 1b. The rest of the structure of the cart is the same as that shown in FIG. 1, and therefore the same parts are given the same reference numerals and detailed explanations will be omitted.

〔Effect of the invention〕

Since the wheelchair auxiliary trolley for an escalator according to the present invention has the above-described structure, the wheelchair can be easily loaded and unloaded by pulling out the bridge board for guiding the wheelchair in and out only when loading and unloading the wheelchair on the trolley. You can easily get on and off the vehicle. Also,
By mounting the hydraulic power unit and battery of the trolley horizontal maintenance device (hydraulic cylinder) in the above-described arrangement, the trolley is compact enough to be easily placed on an escalator with a step width specified by law and moved up and down. Moreover, since heavy objects such as batteries are located near the rear of the trolley, the vector E of the center of gravity of the trolley carrying the wheelchair acts on the upper floor steps as shown in Figure 4, causing an emergency situation, especially when descending an escalator. The danger of the cart rolling down when it stops is eliminated, and safety can be further improved. Furthermore, charging of the battery, attachment/detachment and replacement of the battery, etc. can be carried out very easily from the rear end side of the truck body.

[Brief explanation of drawings]

Fig. 1 is a side view of a wheelchair auxiliary trolley for an escalator, which is related to a separate patent application filed separately from this invention by the present applicant, when the escalator is stopped at the upper floor of the escalator, and Fig. 2 shows the auxiliary trolley in use on an escalator. FIG. 3 is a perspective view showing a wheelchair auxiliary trolley according to an embodiment of the present invention in a wheelchair-riding state, and FIG. 4 shows the operation of the auxiliary trolley at the step section for transporting the auxiliary trolley on an escalator. FIG. A...Wheelchair user, B...Wheelchair, B1...
Caster, d... Horizontal rotational diameter of caster, B
2... Footrest for wheelchair user, B3... Large wheel, B4... Chair seating part, C... Attendant, S...
...Escalator steps, SL...lower step horizontal section,
SK...Step part, SL...Upper step horizontal part, 1
...Body body, 1a, 1b...Bolly body frame on both sides, 1
c...Horizontal beam, 2a, 2b...Two floor plates on both sides, 3
a, 3b...front and rear handle rods, 4...front wheels, 5...rear wheels, 6...bogie horizontal maintenance device, 7
... Hydraulic cylinder, 7a ... Piston rod, 9
... Step floor body, 10 ... Hydraulic power unit,
11...Battery, 13...Intermediate wheel, 14
a, 14b...bridge board, 15...storage box, p...width of the bridge board.

Claims (1)

[Claims] 1. A trolley body on which a wheelchair can be placed and pushed, which allows a wheelchair user to use an escalator accompanied by an attendant, and front and rear wheels pivoted to the front and rear parts of the trolley body; The trolley body equipped with the wheelchair is raised and lowered by the rear wheels in accordance with the step formation movement from the horizontal step part of the escalator or vice versa. let me,
In a wheelchair auxiliary trolley for an escalator equipped with a hydraulic cylinder-type trolley leveling device that maintains a horizontal state at all times, the hydraulic power unit and battery of the hydraulic cylinder are inserted under the mounted wheelchair of the trolley body. Mounted at the center of the width of the truck in an arrangement such that the battery is located on the rear end side of the truck body and the power unit is located on the front side thereof,
In addition, the floor plate of the trolley body on which the wheelchair rests is constructed from two elongated floor plates on both sides extending from the underframe on both sides with a width slightly larger than the horizontal rotating diameter of the wheelchair caster, and the wheelchair is placed on the underside of the two floor plates on both sides. An escalator for an escalator, characterized in that a bridge board is provided for guiding a wheelchair in and out, which is pulled out to the rear of the trolley and bridged between the trolley and the floor surface in an inclined state when loading the trolley, and is stored under the floor board at other times. Wheelchair auxiliary trolley.