WO2022097879A1

WO2022097879A1 - Foldable moving assistant device

Info

Publication number: WO2022097879A1
Application number: PCT/KR2021/009397
Authority: WO
Inventors: 이승열
Original assignee: 의료법인 명지의료재단
Priority date: 2020-11-06
Filing date: 2021-07-21
Publication date: 2022-05-12
Also published as: KR102218837B1

Abstract

The present invention relates to a foldable moving assistant device comprising: a vertical frame provided with a saddle; a front frame which is installed in front of the vertical frame and provided with front wheels installed on both ends thereof to be rotatable; a rear frame which is installed on the rear portion of the vertical frame and is provided with rear wheels installed on both ends thereof to be rotatable; a steering unit including a rotation pipe which surrounds the outer circumferential surface of the front frame and rotates back and forth from the front frame, and a steering shaft which is integrally connected to the rotation pipe and provided with a handle at the upper end thereof; and a straight line maintaining unit which maintains, when the rotation pipe rotates and the steering shaft and the vertical frame are on a straight line, the straight status, and there is an effect of using the device for various purposes by easily changing the configuration into the type of a scooter or simple crutches.

Description

Folding mobility aids

The present invention relates to a movement assistance device for helping patients with leg injuries, and more particularly, to a folding movement assistance device configured to be foldable and used as a crutch in a folded state.

Knee scooter, commonly used in foreign countries, refers to an assistive device in which a patient whose weight bearing is limited by fixing a plaster on the leg pushes the ground with the rest of the leg while placing the knee of the plaster-fixed leg on the saddle.

Such a knee scooter can help a lot of movement of patients with disabilities, but it is not used in Korea because the living environment is different from foreign countries such as many stairs and a short moving distance.

For this reason, patients with leg discomfort often rely on crutches to move, but moving long distances relying on crutches places a lot of physical burden on the patients.

Therefore, an assistive device that can be conveniently moved by pushing and moving with the knee of the injured leg on the flat ground and used for crutches in places such as stairs is needed, but such a device has not been proposed yet.

The present invention has been devised to solve the problems of the prior art, and it is convenient to move while pushing using wheels on flat ground, and folding it on stairs to use it like a crutch, which can help the movement of patients with uncomfortable legs. It relates to a folding mobility aid.

A folding movement assistance device according to the present invention for solving the above problems includes: a vertical frame provided with a saddle; a front frame installed in front of the vertical frame and having front wheels rotatably installed at both ends; a rear frame installed at the rear of the vertical frame and having rear wheels rotatably installed at both ends; a steering unit comprising a rotating tube that rotates forward and backward in the front frame by surrounding the outer peripheral surface of the front frame, and a steering shaft integrally connected to the rotating tube and provided with a handle at an upper end thereof; When the rotating tube rotates and the steering shaft and the vertical frame become in a straight line, a straight line holding part for maintaining the straight line state; is configured to include.

Here, the straight line holding portion and the rear end is rotatably installed on the bottom surface of the vertical frame and a curved piece; a spring installed between the pressed curved piece and the bottom surface of the vertical frame to provide an elastic force for pulling the pressed curved piece toward the vertical frame; It is composed of a; it is provided protruding from the outer surface of the rotary tube, and is in close contact with the bottom surface of the vertical frame by the pressing piece.

In addition, the pressurized curved piece is inclined so that the front end portion is bent downward.

In addition, a cushion pad is further installed on the upper surface of the handle.

In addition, the end tip is spirally coupled to the rear end of the vertical frame.

In addition, a pair of links are installed between the vertical frame and the steering shaft so that the vertical frame and the steering shaft form a 90 degree angle, and the upper and lower portions of the link include first fitting protrusions formed on both sides of the steering shaft and the vertical Each is penetrated by the second fitting protrusions formed on both sides of the frame.

The foldable movement assistance device of the present invention configured as described above is used in the same way as a scooter, and when an obstacle that the scooter cannot climb, such as stairs, is encountered, rotate the rotating tube so that the steering shaft and the vertical frame are in a straight line. Since it can be used in a state where the user grips the front frame with his/her hand, there is an advantage that the scooter can be used as a simple crutch from this point on.

In addition, since the pressing curved piece strongly pushes the contact piece toward the outer surface of the vertical frame by the elastic force of the spring, there is an advantage in that the steering shaft and the vertical frame are firmly maintained in a straight line.

In addition, since the front end portion of the pressed curved piece is bent downward, there is an advantage that the user can easily pull the pressed curved piece.

In addition, since the cushion pad having a certain elasticity supports the user's armpit portion, there is an advantage of making the user feel comfortable when used as a crutch.

In addition, when the end tip is rotated, it is possible to adjust the length of the end tip protruding from the vertical frame, thereby having the advantage of being able to adjust the length of the crutch as a whole.

1 and 2 are views showing a folding movement assistance device according to the present invention.

3 is a view showing a state of rotating the steering unit of the folding movement assistance device according to the present invention.

4 is a view showing a straight line holding unit of the folding movement assistance device according to the present invention.

Figure 5 is a view showing a state when using the folding movement assistance device according to the present invention for a scooter.

Figure 6 is a view showing a state when using the folding movement assistance device according to the present invention for crutches.

A folding movement assistance device according to the present invention for solving the above problems includes: a vertical frame provided with a saddle; a front frame installed in front of the vertical frame and having front wheels rotatably installed at both ends; a rear frame installed at the rear of the vertical frame and having rear wheels rotatably installed at both ends; a steering unit comprising a rotating tube that rotates forward and backward in the front frame by surrounding the outer circumferential surface of the front frame, and a steering shaft integrally connected to the rotating tube and provided with a handle at an upper end thereof; When the rotating tube rotates and the steering shaft and the vertical frame become in a straight line, a straight line holding part for maintaining the straight line state; is configured to include.

Hereinafter, an embodiment of the folding movement assistance device according to the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are views showing a folding movement assistance device according to the present invention, Figure 3 is a view showing a state of rotating the steering unit of the folding movement assistance device according to the present invention, Figure 4 is a folding movement according to the present invention It is a view showing the straight line holding part of the auxiliary device.

And, Figure 5 is a view showing the appearance when using the folding movement assistance device according to the present invention for a scooter, Figure 6 is a view showing the appearance when using the folding movement assistance device according to the present invention for crutches.

The folding movement assistance device according to the present invention includes a vertical frame 10 , a front frame 20 installed in front of the vertical frame 10 , and a rear frame 30 searched on the rear side of the vertical frame 10 . ) and a steering part 40 installed on the front frame 20, and a straight line holding part 50 for maintaining the straight line when the vertical frame 10 and the steering shaft 42 are in a straight line. is composed by

The vertical frame 10 is constituted by a long pipe-shaped member arranged in the front-rear direction, and a saddle 11 for placing the user's knee is provided.

In other words, the vertical frame 10 is bent high in the middle part, and the saddle 11 is installed in the bent part, and the height of the saddle 11 is changeable.

In addition, second fitting projections 12 are formed to protrude from both sides of the vertical frame 10 .

The front frame 20 has a pipe-shaped member extending in the left and right directions to be connected to the front of the vertical frame 10, and one front wheel 21 is rotatably installed at both ends.

As for the rear frame 30, a pipe-shaped member is arranged long in the left and right direction and connected to the rear portion of the vertical frame 10, and one rear wheel 31 is rotatably installed at both ends.

The steering unit 40 includes a rotation tube 41 and a steering shaft 42 integrally connected to the rotation tube 41 .

The rotating tube 41 surrounds the outer peripheral surface of the front frame 20 in the form of a short pipe. This rotary tube 41 is freely rotated in the front and rear direction in the front frame (20).

The steering shaft 42 can be configured to freely expand and contract its length according to a user's height, and a handle 42a is provided at the upper end thereof.

Such a handle 42a is used when the user grips and steers when using the device for the same purpose as a scooter, but by making the steering shaft 42 and the vertical frame 10 in a straight line, the device can be connected with crutches When used for the same purpose, it is inserted into the user's armpit to support the user's weight.

In addition, a cushion pad 42b having a certain elasticity may be installed on the upper surface of the handle 42a.

Since the cushion pad 42b literally acts as a soft cushion, when the present invention is used for crutches, it minimizes the application of pain to the user's armpit by contacting the user's armpit.

On the other hand, when the present invention is used for a scooter, the steering shaft 42 and the vertical frame 10 must maintain a 90 degree angle. In order to maintain the vertical state of the steering shaft 42 and the vertical frame 10 in this way, a pair of links 60 is used in the present invention.

In more detail, the link 60 is installed between the vertical frame 10 and the steering shaft 42 , and the upper portion of the link 60 has first fitting protrusions formed on both sides of the steering shaft 42 , respectively. (42c), the lower portion of the link (60) is penetrated by the second fitting projection (12) formed in the vertical frame (10).

Accordingly, when the link 60 is pulled out from the first fitting protrusion 42c and the second fitting protrusion 12, the steering shaft 42 can be easily rotated forward, and the steering shaft 42 is rotated according to the present invention. When using for crutches, it is possible to prevent loss of the link 60 by inserting one of the first fitting protrusions 42c or the second fitting protrusion 12 through one of the links 60 .

The straight line holding part 50 functions to maintain this straight line state when the rotating tube 41 rotates 90 degrees forward and the steering shaft 42 and the vertical frame 10 are in a straight line.

The straight line holding part 50 includes a pressed curved piece 51 , a spring 52 installed between the pressed curved piece 51 and the bottom surface of the vertical frame 10 , and the pressed curved piece 51 and the vertical frame 10 . ) is composed of a close contact piece 53 inserted between.

The pressing curved piece 51 is a member formed in a curved shape, and the rear end is rotatably installed on the outer bottom surface of the vertical frame 10 by a hinge coupling or a pin coupling.

The pressurized curved piece 51 is inclined in a rounded manner by bending the front end thereof downward. Therefore, when the user wants to rotate the pressed curved piece 51, hold the front end of the downwardly curved pressed curved piece 51 and pull it downward, this operation becomes very easy.

The spring 52 has one end fixed to the vertical frame 10 and the other end fixed to the pressing curved piece 51 to provide a strong elastic force in the direction of pulling the pressing curved piece 51 toward the vertical frame 10 .

The close contact piece 53 may be formed of a curved surface of the same shape as the outer circumferential surface of the vertical frame 10 so as to be in close contact with the outer surface of the vertical frame 10 .

In other words, the close contact piece 53 protrudes from the outer surface of the rotary tube 41 and is in close contact with the bottom surface of the vertical frame 10 by the pressing curved piece 51 . That is, if the user pulls the pressed curved piece 51 and then places the close contact piece 53 on the bottom side of the vertical frame 10 and then releases the pulled pressed curved piece 51, the pressed curved piece by the elastic force of the spring 52 (51) strongly pushes the bottom surface of the close contact piece (53), whereby the contact piece (53) is in close contact with the outer surface of the vertical frame (10).

As described so far, the present invention makes the vertical frame 10 and the steering shaft 42 at a 90 degree angle when used for scooter purposes, and when used for crutches, the vertical frame 10 and the steering shaft 42 are straight. make it this

When the vertical frame 10 and the steering shaft 42 are in a straight line and used for crutches, the cushion pad 42b installed on the handle 42a serves to support the user's armpit portion, and the front frame 20 serves as a handle to be gripped by the user's hand, and the rear wheel 31 corresponds to the lowermost part of the crutch, so that the user is in contact with the ground when moving and serves to support the present invention and the user.

However, since the rear wheel 31 easily rotates even when a slight external force is applied, when the rear wheel 31 is in contact with the ground, there is a risk that the user may fall when using the present invention as a crutch.

Therefore, in the present invention, by spirally coupling the end tip 70 to the rear end of the vertical frame 10, the end tip 70 can serve as a contact with the ground when the present invention is used for crutches.

That is, by making the end tip 70 protrude more rearward than the rear wheel 31, the end tip 70 is in contact with the ground when the present invention is used for crutches. Thereby, stability in use can be improved.

And, since the protrusion length of the end tip 70 can be adjusted by spirally coupling the end tip 70, the protrusion length of the end tip 70 can be freely adjusted according to the height of the user.

The present invention relates to a folding mobility aid that can help a patient with leg discomfort when he touches a place with a height such as stairs while moving on flat ground, and can be widely used in medical institutions, medical equipment manufacturing, and the like.

Claims

a vertical frame 10 provided with a saddle 11; a front frame 20 installed in front of the vertical frame 10 and having front wheels 21 rotatably installed at both ends; a rear frame 30 installed at the rear of the vertical frame 10 and having rear wheels 31 rotatably installed at both ends; A rotating tube 41 that rotates forward and backward in the front frame 20 by surrounding the outer circumferential surface of the front frame 20, and the steering wheel which is integrally connected to the rotating tube 41 and provided with a handle 42a at the upper end a steering unit 40 composed of a shaft 42; When the rotating tube 41 rotates and the steering shaft 42 and the vertical frame 10 become in a straight line, a straight line holding part 50 for maintaining the straight line state;

The straight line holding part 50 has a rear end and a pressing curved piece 51 rotatably installed on the bottom surface of the vertical frame 10; a spring 52 installed between the pressed curved piece 51 and the bottom surface of the vertical frame 10 to provide an elastic force for pulling the pressing curved piece 51 toward the vertical frame 10; A folding movement assisting device, characterized in that it is composed of; is provided on the outer surface of the rotating tube (41) and is provided in close contact with the bottom surface of the vertical frame (10) by the pressing curved piece (51). .
The method according to claim 1,

The pressurized curved piece 51 is a folding movement assistance device, characterized in that the front end is curved downward and inclined to be rounded.
The method according to claim 1,

A folding movement assistance device, characterized in that a cushion pad (42b) is further installed on the upper surface of the handle (42a).
The method according to claim 1,

Foldable movement assisting device, characterized in that the end tip 70 is spirally coupled to the rear end of the vertical frame (10).
The method according to claim 1,

A pair of links 60 are installed between the vertical frame 10 and the steering shaft 42 so that the vertical frame 10 and the steering shaft 42 form an angle of 90 degrees,

The upper and lower portions of the link 60 are penetrated by first fitting projections 42c formed on both sides of the steering shaft 42 and second fitting projections 12 formed on both sides of the vertical frame 10, respectively. A folding mobility aid, characterized in that.