JPS6222623B2 - - 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 stand on the first step of the escalator in a horizontal position, and will have to straddle two steps. Since the wheelchair must be tilted, there is a high possibility that the wheelchair will fall, which is very 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.

[Purpose of the invention]

This invention solves the above-mentioned conventional drawbacks and enables a wheelchair user accompanied by an attendant to safely use a general escalator.This invention is a wheelchair auxiliary trolley for an escalator that can carry a wheelchair and move on the escalator. Our goal is to provide the following.

[Summary of the invention]

The wheelchair auxiliary trolley of the present invention is used when a wheelchair user accompanied by an attendant uses an escalator, and the wheelchair auxiliary trolley is equipped with at least four wheels that rest on one step of steps and can be pushed by the attendant. a rolling frame capable of moving up and down, a floor frame on which a wheelchair housed in a vertically movable manner is placed, and the floor frame installed vertically between the floor frame and the rolling frame. It is equipped with a hydraulic cylinder that moves the platform up and down, and an operating means for this hydraulic cylinder, and the up and down movement of the hydraulic cylinder is detected by detecting the step forming movement and horizontal forming movement of the escalator steps and operating the hydraulic cylinder operating means. It is characterized in that it is carried out based on a device.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. This wheelchair auxiliary trolley is used when a wheelchair user B accompanied by an attendant A uses an escalator E. Attendant A with at least four wheels 1 resting on it
Rolling frame 10 that can be pushed and moved by hand
, a floor frame 20 on which the wheelchair C housed in the rolling frame 10 so as to be movable up and down, and the floor frame 20 installed vertically between the floor frame and the rolling frame 10. The hydraulic cylinder 30 is configured to move the hydraulic cylinder 20 up and down by one step, and an actuating means 33 for this hydraulic cylinder.

The rolling frame 10 has a pair of left and right vertical frame rods 2, 3 which are oppositely spaced from each other in the front and rear, on which the wheel 1 is pivoted at the lower end thereof, and these vertical frame rods 2, 3.
A pair of left and right frames 7, 7 (this pair of frames has In the illustrated example, they are separate and independent from each other, but they may also be connected in a frame-like manner by a rear connecting rod that also serves as a wheelchair stopper.)
Consisted of. Further, the floor frame base 20 is slidably fitted to the vertical frame rods 2, 3 of the frame pair 7, 7 so as to be vertically movable.
3 (this underframe has a length of about two and a half steps protruding in the front and back direction of the frame rods 2 and 3), and a rotatable Casters 24 are provided, and
The front end of the underframe 21 is provided with a kick-up portion of the step S.
As shown in FIGS. 1 and 3, a distal end stopper roller 25 is provided in contact with Sa.

Two hydraulic cylinders 30 are arranged on the left and right sides of the underframe 21, and the lower end of each cylinder is fixed on the underframe 21, and the upper end of each piston rod 31 is connected to the rolling frame cross beam 4. It is pivotally connected to the intermediate portion by a pin 32.

The operating means 33 of the hydraulic cylinder 30 is connected to a power unit 34 (pump, motor, oil tank, ) and a battery 35 for its operating power source. In addition, 36 in the figure is a detection device that detects step movement in the escalator step S and operates the hydraulic cylinder actuating means 33,
0 near the tip stopper roller 25. This detection device 36 consists of a detection switch 38 mounted on the switchboard frame 20 via a bracket 37, and a switch actuation rod 40 which is vertically movable and has a step contact roller 39 at its lower end. The step contact trochanter 39 of the switch actuation rod 40
spring 41 (this spring 41 is connected to the rod lower limit stopper flange 41a) which protrudes near the horizontal installation surface of the wheel 1 and is biased to the lower limit position as shown in FIG. (interposed between the brackets 37), the switch actuating rod 40 with the trochanter 39 is pushed up in accordance with the step forming movement as shown in FIGS. 2 and 3, or vice versa. When the rod 40 is lowered by a spring in accordance with the horizontal step formation movement from the step section, the detection switch 38 is actuated by the rod being pushed up or lowered, and the hydraulic cylinder 30 moves the floor frame 20 to move the step by one step. 3, or push up as shown in FIG. 4. In addition, numeral 42 in the figure indicates a rubber mat attached to the rear lower surface of the floor frame 20.

Next, to explain how to use the auxiliary trolley configured as described above, first, the attendant A who has been pushing the wheelchair C stops the wheelchair C near the entrance of the escalator E, and then the attendant A wheelchair C loaded with a user is placed on the auxiliary cart (floor frame 20) of the present invention, and the auxiliary cart carrying the wheelchair is pushed to an escalator entrance (hereinafter, the case of a lower floor entrance will be described). At this point, the escalator E is switched to the wheelchair operation mode and operated at low speed, and after waiting for this low speed operation, the trolley is loaded onto the escalator steps S as shown in FIG. Then, as shown in FIG. 2, the step S starts to move to form a step, and when the switch actuating rod 40 with the trochanter 25, which is normally pressed down by the spring 41, is pushed up by the step S, the detection switch 38 operates. The hydraulic cylinder 30 is activated and the piston rod 31 is retracted to lift the floor frame 20 to the maximum step S (the step equivalent to one step). Then, as shown in Fig. 3, when the step S reaches the maximum step, the piston movement stops, and the floor frame 20 on which the wheelchair C is placed is moved between the four wheels 1 and the rubber mat on the lower surface of the underframe 21 that is in contact with the surface of the step S. 42 (at this time, the rubber mat 42 is supported by the floor frame 20 and the step S
It not only prevents people from coming into contact and hurting each other, but also
(It also prevents the cart from slipping), and it is moved upward while always maintaining a horizontal state. Then, when the escalator step S on which the auxiliary cart is mounted moves from the step part to near the horizontal part of the upper step step and starts a horizontal movement, the detection switch 38 is operated again by lowering the rod by spring bias, The hydraulic cylinder 30 extends in accordance with the horizontal movement of the steps S to lower the floor frame 20 while always keeping it horizontal, and when the steps reach the horizontal part of the upper floor, the piston rod 31 extends. The operation of the hydraulic cylinder 30 is stopped. Therefore, if the cart is pushed out in this state as shown in FIG. 4, it can be easily lowered to the floor 43 side from the upper escalator entrance.

The usage method described above was explained for raising the auxiliary trolley carrying a wheelchair from the lower floor entrance to the upper floor entrance of escalator E, but the same cylinder action as described above is also applied when lowering the escalator E from the lower floor entrance to the upper floor entrance. This can be done by

〔Effect of the invention〕

Since the wheelchair auxiliary trolley for escalators of the present invention has the structure described above, it can be safely used by wheelchair users accompanied by an attendant even on general escalators, and it can be used to assist the wheelchair while being transported on the escalator. It is possible to eliminate the danger that the trolley will fall along with the wheelchair user and the attendant. Furthermore, in the trolley structure of the present invention, the four wheels provided on the rolling frame ride on one step, so when the auxiliary trolley carrying a wheelchair is loaded onto the escalator or taken down from the escalator, the operation of the escalator is stopped. This is not necessary and has the effect of making escalator operation easier.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing the structure and operation of an auxiliary trolley according to an embodiment of the present invention, and FIG. 1 is an operational state diagram when the auxiliary trolley carrying a wheelchair is loaded onto the horizontal part of the lower stairway of an escalator; Fig. 2 is a diagram of the operating state of the wheelchair auxiliary trolley at the start of step movement on the lower floor of the escalator, Fig. 3 is a diagram of the intermediate operating state of the auxiliary trolley at the step section, and Fig. 4 is a diagram of the operating state of the auxiliary trolley at the horizontal section of the upper step of the escalator. FIG. 6 is a diagram showing the operation state of the auxiliary trolley. A... Attendant, B... Wheelchair user, C...
Wheelchair, E...Escalator, S...Steps, 1...
... Wheels, 2, 3 ... Vertical frame rod, 4 ... Cross beam, 5 ... Front grip rod, 6 ... Rear grip rod, 7,
7... Left and right frame pair, 10... Rolling frame, 20... Floor frame base, 21... Underframe, 22, 23
... Frame guide, 24 ... Rear end caster,
25... Tip stopper roller, 30... Hydraulic cylinder, 31... Piston rod, 32... Pin,
33...Hydraulic cylinder operating means, 34...Power unit, 35...Battery, 36...Detection device, 37...Bracket, 38...Detection switch, 39...Step contact trochanter, 40...Switch operation Rod, 41...Spring, 42...Rubber mat.

Claims (1)

[Claims] 1 An auxiliary trolley that allows a wheelchair user to use an escalator accompanied by an attendant, which is equipped with at least four wheels that rest on one step and can be pushed by the attendant. A rolling frame that can be moved, a floor frame on which a wheelchair that is housed in a vertically movable manner is placed within the rolling frame,
A hydraulic cylinder installed vertically between the floor frame and the rolling frame for vertically moving the floor frame, and an operating means for the hydraulic cylinder, the vertical movement of the hydraulic cylinder being controlled by an escalator. A wheelchair auxiliary trolley for an escalator, characterized in that the wheelchair auxiliary trolley for an escalator is operated based on a detection device that detects a step forming movement and a horizontal forming movement and operates a hydraulic cylinder actuating means.