JPS5823317B2 - stair lift device - Google Patents

Description

[Detailed Description of the Invention] This invention is a stair lifting device installed on the stairs of subways, railway station buildings, etc., and more specifically, a stair lifting device that is installed on the stairs of subways, railway station buildings, etc. The present invention relates to a stair lifting device which can be easily used by people who find it painful to go up and down stairs, such as the elderly and infirm.

A guide with the same slope as the stairs is provided above the stairs, a traveling platform is movably attached to this guide, a wheelchair platform is provided on the traveling platform so that it can be raised and lowered, and the wheelchair platform is moved up and down as appropriate, and the traveling platform is moved along the guide. Stair climbing devices for people with disabilities have already been devised.

By the way, conventional stair climbing devices require an operator to operate the device, and the operation signals from the operator are transmitted to the control unit on the traveling platform using sliding contacts, etc., so there are many cables, which can cause failures. In addition, since it is not operated by the passenger himself/herself, it causes anxiety to the passenger.

The present invention aims to provide a stair lifting device which simplifies the movement of the traveling platform and wheelchair platform as much as possible, and which also makes the operation simple and can be operated by the occupant.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the stair lifting device of Kono's invention includes a guide 1 provided above a stair A and having the same slope as the stair A, and a three-phase trolley wire 2 attached along the guide 1. and a traveling frame 3 movably provided on the guide 1.
A wheelchair stand 5 suspended from a traveling frame 3 via a lifting mechanism 4
and power switches 6.7 provided at the upper and lower dance areas B and C leading to the stairs, which are the boarding and alighting positions.

The guide 1 is fixed to the lower surface of the single-shaped steel 1' along the slope of the stairs A, and the guide 1 is attached to the dance area B above and below the stairs A.
, C.

The power switch 6.7 is located in the main control panel 8 buried under the stairs A.
When each switch 6.7 is turned on, power is supplied from the three-phase power supply 9 to the feeder line 10 of the trolley wire 2 by making any two phases of the power supplied to the trolley wire 2 different. There is.

For example, if each line of the feeder line 10 is w, v, y, and each line of the trolley wire 2 is also w, v, y, when the upper power switch 6 is turned on, the W of the feeder line 10 and the W of the trolley wire 2 are ,
When V and V, Y and Y are connected respectively, and the lower power switch 7 is turned on, W of the power supply line 10 and V of the trolley wire 2,
v and w, and y and Y will be connected, respectively.

The traveling platform 3 is set to be always horizontal by guide rollers etc. that are in sliding contact with the guide 1, and the traveling platform 3 is equipped with two elevating mechanisms: a three-phase AC motor for guide traveling and an elevating drive mechanism for the wheelchair platform 5. A two-phase AC motor is provided.

Electric power is supplied to each of these motors from the trolley wire 2 via a current collector 11 .

A gear is connected to the 3-phase AC motor, and the gear meshes with a rack provided along the guide 1. Driven by the 3-phase AC motor, the traveling frame 3 moves the guide 1 in the vertical direction via the gear and the rack. Moving.

Also, depending on which power switch 5 or 7 is turned on,
Since the phases of the power supplied to the trolley wire 2 are different, the three-phase AC motor rotates in a different direction depending on which switch 6 or 7 is turned on. When the upper switch 6 is turned on, the three-phase AC motor rotates when the traveling frame When the lower switch 7 is turned on, the motor rotates so that the traveling frame 3 moves downward.

The lifting mechanism of the wheelchair platform 5 is a hanging arm type with a pantograph structure as shown in the figure, and a winch is provided on the traveling frame 3. The wheelchair platform 5 is suspended by a wire wound around the winch, and the wire is wound and wound by the winch. A set of wires may be used to raise and lower the wheelchair platform 5, so that the wheelchair platform 5 is always level when the user is on board.

This elevating mechanism 4 is operated by the above-mentioned two elevating motors, and one motor is responsible for lowering the wheelchair base 5, and the other motor is responsible for raising the wheelchair base 5.

Since the lifting motor has two phases, the direction of rotation is constant even if the phases of the power supplied to the trolley wire 2 are different.

Furthermore, the traveling platform 3 is provided with an on-machine control panel 11, and the traveling platform 3 is located at the boarding and alighting positions (dance areas B and C).
Travel sensors 12 and 13 such as proximity switches are provided to detect that the vehicle is compatible with the vehicle.

In response to the detection signals from the travel sensors 12 and 13, the drive of the three-phase AC motor is stopped and the travel platform 3 is stopped, and then the two-phase AC motor for lowering is driven and the wheelchair platform 5 is lowered (Example pantograph extends).

Further, a lowest point sensor 14 such as a proximity switch connected to the control panel 11 is provided on the lower surface of the traveling frame 3.
When the wheelchair platform 5 comes into contact with the floor surface, this contact is detected by the sensor 14, and the detection signal causes the lowering motor to stop and the wheelchair stands ready for boarding.

The lifting mechanism 4 includes a manual operation box 1 connected to a control panel 11.
5 is attached, and by turning on the lift switch of this operation box 15 from the boarding standby state of this device, the two-phase AC motor for lifting is driven by the function of the control panel 110, and the wheelchair platform 5 is raised by about 30 CTL. After being raised, the traveling motor is driven and the traveling frame 3 travels.

By turning on this lift switch, the phase of the electric power being supplied to the trolley wire 2 is changed and supplied to the traveling motor.

That is, the direction of rotation of the travel motor when the power switch 6.7 is turned on is always opposite to the direction of rotation of the travel motor when the lift switch is turned on.

Then, when the power switch 6.7 is turned off while the wheelchair platform 5 is in a standby state, the two-phase AC motor for lifting is driven.

This driving time is determined by the end of the set time on the control panel 11 or a detection signal from a proximity sensor or the like to the wheelchair platform 50 traveling frame 3.

The stair lift device of the present invention is constructed as described above, and how to use it will be explained next.

Now, dance hall B is located above and below stairs A as shown in Fig. 1.

When the user M who is located in either of the positions C turns on the power switch 7 as shown in FIG. The traveling sensor 12 issues a detection signal, and as shown in FIG. 3, the traveling platform 3 stops, and the wheelchair platform 5 descends to a standby state as shown in FIG.

In this state, when the user M gets on the wheelchair platform 5 and turns on the switch on the operation panel 15, the wheelchair platform 3 rises by about 30 crrL as shown in FIG. move (increase in the figure).

When the user comes to the dance area B on the opposite side of the dance area C where he or she boarded, the travel sensor 13 issues a detection signal and the travel platform 3 stops, as shown in Figure F, and the wheelchair platform 5
falls and enters the same state as the standby state.

After that, the user M gets off the wheelchair platform 5 and turns off the power switch 6, and the wheelchair platform 5 automatically rises and
As shown in the figure, it is in a state close to the traveling frame 3 (in the embodiment, it is in a folded state) and waits for the next power switch 6.7 to be turned on.

In addition, an intercom 16 is installed near the power switches 6.7 of the dance halls B and C, and the intercom 16 asks the administrator whether or not the use is permitted, and the administrator turns on the main switch of the three-phase power source 9. Good too.

Further, the power switch 6.7 is preferably of a bush type and consists of two buttons, ``ON'' and ``OFF'', as shown in FIG.

As described above, according to the stair climbing device of the present invention, sensors such as proximity switches are attached to the traveling base, and there is no operation signal transmission from the outside to the control panel on the traveling base, and power is supplied to the trolley wire. The trolley can be moved dynamically to the boarding/disembarking position where the user is located, and after boarding, it can be moved to the boarding/disembarking position on the opposite side with only one operation by the user, so the number of electric wires on the trolley is reduced to 3. Since there is no need for sliding contacts or cables for transmission signals, there are advantages such as fewer failures.

Furthermore, after boarding, the vehicle is moved only by the user's operations, so there is no need to worry.

[Brief explanation of drawings]

The drawings show an embodiment of the stair lift device of the present invention, and FIG. 1 is a schematic diagram, FIG. 2 is a schematic configuration circuit diagram, and FIG. 3 is a diagram illustrating the state of use. 1...Guide, 2...Trolley wire, 3
・-・・Traveling frame, 4・・・Lifting mechanism, 6,
1...Power switch, 11-...Onboard control panel, 12, 13...Driving sensor, 14...
...lowest point detection sensor, 15...operation panel.

Claims (1)

[Claims] 1. A guide provided above the stairs and having the same slope as the stairs;
A three-phase trolley wire attached along the guide, a traveling pedestal movably provided on the guide, and a lifting motor installed on the traveling pedestal as described below are stopped to supply phase signals from the trolley wires through current collectors. a traveling drive mechanism having a traveling motor that is supplied with different three-phase AC power and moves the traveling platform along a guide in forward and reverse directions; a wheelchair platform that is suspended from the traveling platform so that it can be raised and lowered; and the wheelchair platform. a lifting drive mechanism having a lifting motor and a lowering motor for lifting and lowering;
They are installed at the top and bottom of the stairs where you can get on and off, and when the upper one is turned on, it supplies power to the travel motor to guide the travel platform down. is supplied and the lower one is turned on, supplying power to the traveling motor so that the traveling frame moves up the guide, and both the upper and lower sides are turned on and off to operate the raising motor for a certain period of time or the height of the wheelchair platform. With a power switch that drives the device a certain distance up. A travel sensor detects when the travel platform corresponds to the boarding/exiting position and stops the travel motor and drives the lowering motor, and a lift sensor detects the lowest point of the wheelchair platform and stops the lowering motor. A stair lifting device comprising an operating switch that, when turned on, drives a lifting motor for a certain period of time or for a certain lifting distance of a wheelchair platform.