KR20170061926A - Electric Wheelchair equipped with Vertical motion wheels - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric wheelchair for allowing a person with a disability jaw or a depression to pass by himself without assistance.
A typical electric wheelchair has only four wheels, but it is fastened on a flat road so that it can be used smoothly. However, a person with an uncomfortable body when encountering an obstacle can not pass through an obstacle alone, and the help of another person is unconditional.
In order to solve the above-mentioned problems, it is an object of the present invention to enable a person with a physical disability to cross an obstacle by themselves without stopping when an obstacle is encountered in an electric wheelchair.
The sensor detects the obstacle and informs the user of the presence of the obstacle through the alarm of the armrest portion, and at the same time, the electric wheelchair is lifted up when the specific distance of the obstacle is detected, The second wheel portion, and the third wheel portion), and the first wheel portion is bent and placed on the obstacle (obstacle jaw), and the lift device is moved upward in the order of the first wheel portion, the second wheel portion, It is characterized in that electric wheelchair users can overcome obstacles themselves without using the power of the person.
According to the present invention, when an electric wheelchair user crosses an obstacle, the obstacle can easily be overcome by himself without the help of another person.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric wheelchair having three-way up and down movement wheels,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wheelchair, and more particularly, to an electric wheelchair capable of moving an electric wheelchair wheel up and down so that a trouble jaw or a dented area can pass by itself without the help of another person.

A commonly used wheelchair is a mechanism for allowing a physically disabled person or an elderly person with inadequate mobility to move more easily. Normally, a manual wheelchair for manually rotating a wheel mounted on both sides of a seat In recent years, a motor-driven wheelchair has been developed, in which a wheel is driven by a driving device installed in a vehicle body, so that a user can operate the lever with ease without requiring a direct force.

However, these electric wheelchairs have only four wheels, but they are fixed without movement, so they can be used smoothly on the flat roads. However, when the person meets obstacle jaws or difficult places (obstacles) There is a problem that the help of another person is unconditional.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to enable a person with a physical disability to cross an obstacle by themselves without stopping when an obstacle is encountered on an electric wheelchair.

The present invention relates to a chair comprising three pairs of six wheels, a footrest for supporting the feet, a legrest for supporting the calf, a backrest for supporting a back, a chair for supporting the buttocks and thighs, A lifting device for connecting the flat plate frame and the wheel part and for bending the wheel to raise and lower the wheel to adjust the height, and a lifting device for lifting and lowering the wheel when the wheel part is moved up and down A thick flat frame that supports four lifting devices and connects the lifting device to the wheel ring, a wheel ring to prevent the wheel from falling off when the wheel is up and down, a wheel shaft to connect the two wheels together, a chair ), A luggage compartment to support the arms, an armrest to support the arm, a joystick to control the direction (direction changing handle, A sensor for detecting the presence and distance of an obstacle at a predetermined height or higher, a sound for informing the contents recognized by the sensor, and a vibration alarm.

A technology that allows electric wheelchair users to overcome obstacles without help from other people, such as jaws or dented grooves that can not be raised by self-powered wheelchairs. When the obstacle (jaw) And the electric wheelchair informs the user of the presence of the obstacle through the alarm of the armrest portion, and the electric wheelchair is lifted when the distance of the certain obstacle jaw is detected, the lifting device (the first wheel portion, the second wheel, (Lift) the first wheel part, the first wheel part is bent and placed on the jaw, and the lift device is moved upward in the order of the first wheel part, the second wheel part and the third wheel part in order, So that the electric wheelchair user himself can overcome the obstacle. When another obstacle (a dent or a downward jaw) is encountered, the lift rule is not raised from the first wheel portion, and the entire wheel portion is lowered after the obstacle is stopped, so that the obstacle can safely pass over.

As described above, according to the present invention, when an electric wheelchair user crosses an obstacle, the obstacle can be overcome easily without being assisted by another person.

1 is a perspective view of an electric wheelchair having three-way up and down movement wheels capable of easily raising and lowering an obstacle.
FIG. 2 is an electric wheelchair having three-way up and down movement wheels capable of easily raising and lowering an obstacle.
FIG. 3 is a bottom view of an electric wheelchair having three-way up and down movement wheels capable of easily raising and lowering an obstacle.
FIG. 4 is a front view of an electric wheelchair having three-way up and down movement wheels capable of easily raising and lowering an obstacle.

The present invention will now be described in detail with reference to the accompanying drawings.

1 and 3, the first wheel part includes a wheel shaft 60 connecting the first wheel 10 and a pair of wheels, two wheel rings 220 surrounding the wheel shaft, A lift device 210, and a coarse flat plate frame 230 connecting the lift device and the wheel link. The second wheel portion and the third wheel portion are also the same.

When the distance and height recognition sensor 190 reaches a certain distance from the obstacle jaw, when the electric wheelchair passes over the obstacle jaw, the obstacle jaw . At the same time, when the lifting device that has been lowered is raised all the time, the first wheel is lifted by the lifting device 210. Moving forward, the first wheel part is raised on the obstacle jaw. Then, the second wheel portion and the third wheel portion are raised to raise the obstacle jaw in the same manner as the first wheel portion.

In FIG. 2, the storage box 180 connected to the back base 160 and the hinge 200 is for users who can ride the electric wheelchair and can not carry the baggage such as a bag. I hung the hinge so I can take it out. In FIG. 1, the holder ring 40 can be seen in the opposite direction to the hinge. The retaining ring is fixed by a ring when traveling on an electric wheelchair so that the storage box (180) is not shaken and when the luggage is taken out, it is pulled out by gently pulling the collar to allow the storage box to be used while sitting.

4, there are a neck support 110 for supporting the neck, a back support 160 for leaning backward, and an arm support 140 for allowing the arm to comfortably use the joystick. The joystick is also called a direction change lever because it can adjust the direction and speed.

In order to compensate for the wheelchair's shaking due to the difference in the height of the lower tucks or roads on the way, a spring 170 having a suitable elasticity is installed under the chair 150 supporting the thighs to absorb the shock. In addition, among electric wheelchair users, there are many people who are inconvenienced with the use of the legs, so that the leg support 100 can be attached to the flat frame 80, . At the end, an angle adjustable footrest (50) is attached to maximize the comfort of the user.

The uppermost neck support can be adjusted to fit the user's body and the alarm attached to the arm support can be reused by setting a pattern of sound or vibration. The storage compartment on the left side of the user is configured to pull the retaining ring slightly upward so that it can be used even when sitting, and then loosely hold the retaining ring after use. Since the lift of the lift device is operated by the distance and height recognition sensor, the lift device is configured to rise at a proper time according to the movement speed of the user. Chairs, backrests, and armrests are made of hard steel inside to prevent deformation, and a soft cotton pad or mat is placed on the outside and covered with leather to make them feel comfortable for a long time. The footrest support and the footrest are configured so that the user can adjust the length and angle of each user because the length and habit of the user are different.

While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the disclosed embodiments, and various changes and modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should be defined by the following claims.

10 - first wheel portion 20 - second wheel portion 30 - third wheel portion
40 - Holder stop ring 50 - Foot rest 60 - Wheel axle
70 - wheels 80 - flat frame 90 - footrest support
100 - Leg support 110 - Neck support 120 - Sound and vibration alarm
130 - Joystick 140 - Armrest 150 - Chair 160 - Backrest
170 - Spring 180 - Housing 190 - Distance and height recognition sensor
200 - Storage hinge 210 - Lifting device
220 - Wheel ring 230 - Thick flat plate frame

Claims (3)

For electric wheelchairs
An electric wheelchair main body operated by electric power;
A first wheel portion that moves up and down the obstacle first when the obstacle is confronted;
A second wheel part that moves up and down the obstacle when the first wheel part moves up and down on the obstacle;
A third wheel unit for assisting the forward movement until the first wheel unit and the second wheel unit move up and down the obstacle;
A lifting device connecting the first wheel portion, the second wheel portion, and the third wheel portion to the electric wheelchair body to assist in up and down movement;
A storage space in which a rear portion of the electric wheelchair body is located and in which a user's storage product can be loaded;
And an electric wheelchair having three-way up and down movement wheels for easily climbing the obstacle. The method of claim 1, wherein
Wherein the lift device recognizes an obstacle when the obstacle is confronted and performs a movement for raising the wheelchair. An electric wheelchair having three-vertically movable lifting and lowering wheels for easily raising and lowering an obstacle The method of claim 1, wherein
The storage space is provided with a three-way up and down movement wheel which can easily climb an obstacle, which is characterized in that the storage space is moved so as to be taken out to the right by loosening the lower left portion Electric wheelchair

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