JP2023016655A - Wheelchair stair lifting device - Google Patents

Abstract

To provide a wheelchair stair lifting device for safely ascending/descending stairs while carrying a wheelchair loaded with a care receiver.SOLUTION: (1) At the time of descending: a care receiver is loaded on a stair lifting device so as to be positioned on the upper side on stairs and look in the upward direction of the stairs and a caregiver stands on the lower side on the stairs, looks downstairs or at the care receiver, and can safely descend while looking at the caregiver's feet. (2) At the time of ascending: the care receiver is loaded so as to look in the upward direction of the stairs and can obtain a great feeling of supported safety because the caregiver is on the lower side on the stairs and the caregiver can ascend while confirming the care receiver, the caregiver's feet, and the upward direction. (3) Safety and relief of the care giver and the care receiver: a slope is erected and becomes a wall at the time of getting on/off a wheelchair, which can prevent a direct hit of a falling object at the care receiver at the time of ascending/descending the stairs or at the time of disaster and, in addition, elimination of the care receiver's falling risk and directly looking down the stairs provides the care receiver with a feeling of being protected from terror at the time of movement because the caregiver is beside the care receiver.SELECTED DRAWING: Figure 2

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair stair climbing device for safely descending or ascending stairs when a care recipient in a wheelchair is placed by one caregiver together with the wheelchair in the event of a fire, flood, disaster, or the like.

For ascending and descending stairs, an electric rail type and a battery type electric lifting device in which a caregiver stands behind the person requiring care are known.

The electric type cannot go up and down the stairs when the power is out or the battery is low.
Normally, it is naturally possible to go up and down, but the conventional stair climbing device keeps the wheelchair horizontal, so the person requiring nursing care stays higher than the stairs. As a result, you feel fear.
In addition, the caregiver who always operates the lifting device is in the upper part of the stairs, and the lifting device obstructs the eyesight, making it difficult to see downstairs, and it is very dangerous to go down the stairs because they do not know what is around them or under their feet.

Means to try to solve the problem

When descending stairs, as shown in Fig. 1, the person requiring care is safely secured in a wheelchair so that the upper part of the stairs can be seen, and the caregiver stays at the bottom of the device and descends the stairs while viewing the person requiring care in front or behind. do. The feet are clearly visible and safe, and the care-requiring person feels a great sense of security. .

As shown in Figure 2, when going up stairs, the person requiring care gets on the wheelchair so that the top of the stairs can be seen and is safely fixed, and the caregiver looks up from the bottom of the device and moves the ratchet handle back and forth while going up the stairs. .

As shown in Fig. 6, after the ramp for loading the wheelchair into the trolley deck is completed, it stands upright with hinges and becomes a wall, preventing direct hits to the person requiring care when climbing stairs or in the event of a disaster. In addition, by facing the risk of falling and facing the caregiver, the patient no longer looks downstairs and feels protected from the fear of going up and down.

Effect of the invention

1. The care-requiring person is on the stairs, in a low position, and there is a caregiver behind them (at the bottom of the stairs), so they have a great sense of security.
2. At the time of descent, the caregiver faces the front or back of the person requiring care and descends while watching the feet, which is safe.
3. When ascending, the caregiver faces upwards and can climb while checking the condition of the person requiring care, providing peace of mind.
4. Since the slope for getting into the wheelchair stands upright after getting on and becomes a wall, it is possible to avoid direct hits to the person requiring care from unforeseen circumstances such as falling objects during climbing. In addition, when descending, the care-requiring person is in a position to look upstairs and does not look downstairs. Since it is manually lifted, the device is compact and inexpensive.

Lifting device Side view when descending stairs Elevating device side view when climbing stairs Lifting device Front view when descending stairs Lifting device Front view when climbing stairs Elevator top view Elevator side view

Embodiments of the present invention will be described below.

1. A pair of left and right double-toothed belt conveyors (4) are provided on side plates (9) connected by stays (8). The belt conveyor presses the lower brake plate (7) and the belt conveyor with a spring (5) that can adjust the pressure force, and is adjusted so as not to slide down the stairs.
2. A pair of struts (15) are erected from the tip of the side plate.
3. A pair of handles (16) are provided perpendicular to the struts.
4. When descending the stairs, the caregiver (14) grips the handle and descends the stairs while looking at the person requiring care in front or behind and looking at the feet.
Ratchet handle (2) is fixed to post (15) by pin (18).
A one-way clutch can be used instead of the ratchet handle.
5. When going up the stairs, the caregiver (14) pulls out the pin (18) of the ratchet handle (2), attaches the ratchet handle lever (19), grasps the lever, and climbs the stairs while swinging up and down.
A one-way clutch can be used instead of the ratchet handle.
6. A side plate (9) is provided with a deck (10) for a wheelchair (11), and a wheelchair on which a person requiring care is placed is mounted using a slope (12) and fixed to a support (15).
7. After putting the wheelchair on, the ramp (12) is erected and fixed by hinges (13).

It seems necessary for hospitals, elderly facilities, condominiums, homes, commercial facilities, and public facilities where wheelchair users live and use.

1. Stairs 2. Ratchet handle 3 . Gears for toothed belts 4 . Double toothed belt conveyor 5 . 6. spring 7. Flat ground caster. Brake plate 8 Stay 9 Side plate 10 Wheelchair deck 11 . Wheelchairs for care recipients 12 Slopes and shields 13 . Hinge 14 Caregiver 15 Post 16 Handle 17 Wheelchair wheel stopper 18 Ratchet handle fixing pin 19 . ratchet handle lever

Claims (4)

When descending the stairs with the wheelchair on which the person requiring nursing care is placed and fixed on the belt-type stair climbing device, the caregiver stands at the bottom of the stairs and grasps the handle to see the person in front or behind the stairs. Wheelchair stair climbing device descending while looking at the bottom When the wheelchair is fixed on the belt-type stair-lifting device and the care-requiring person goes up the stairs, the caregiver stands at the bottom of the device and moves up and down the stairs while looking upward and swinging the ratchet handle lever. ascending wheelchair stair lift Use a ratchet handle or one-way clutch on the belt gear.
When descending stairs, the belt slides down the stairs without rotating.
Ascending the stairs, the belt ascends the stairs while rotating. There is a hinged slope at the rear of the equipment deck, and it is used as a ramp when getting on and off the wheelchair. After a wheelchair is boarded on the deck, it stands upright and is fixed as a shield plate to prevent falling objects from above from directly hitting the person requiring nursing care.

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