KR100690336B1 - The wheel-chair - Google Patents

Abstract

A wheelchair is provided to enable the aged and the infirm, or a patient to stand up from the wheelchair all by oneself by installing a subsidiary device on the wheelchair, and to absorb vibration generated from the ground in driving. The wheelchair includes: a seat(1) comprising a fixing part(11) and a moving part(12); a frame for connecting the seat, a backrest, and wheels; a first fixing frame(3) mounted on the frame below the seat, and having an insertion hole(31); a second fixing frame(4) having a locking hole(41); an angle adjusting and cushion device(5) comprising two gas springs(52) and a compressed coil spring(53); a fixing device comprising a fixing protrusion part and a fixing tool; and an operation device comprising a mounting groove, a fixer(71), a connection plate(72), a cable(73), a guide covering(74), and an operation handle(75).

Description

Wheelchair {The wheel-chair}

1 is a perspective view according to an embodiment of the present invention

2 is a conceptual diagram according to an embodiment of the present invention;

Figure 3 is a partial perspective view showing the configuration of the main portion of the present invention

Figure 4 is a side view showing the operation of the seat according to the invention

5 is a cross-sectional view showing the movement of the operating device according to the present invention;

6 is a conceptual view showing a fixing device according to the present invention

Figure 7 is a rear view showing the cushioning action according to the present invention

<Explanation of symbols for main parts of the drawings>

1: Seat

     11 fixing part 12 hinge

     13: moving part

2: frame

     21: backrest 22: wheels

     23: hand ring

3: first fixed frame

     31: Insertion groove

4: second fixed frame

     41: hanging hole

5: Angle adjustment and cushion device

     51: hinge coupler 52: gas spring

     53: compression coil spring 54: fixed pipe

     55: extension rod 56: fixed protrusion

6: fixing device

     61 insertion part 62 fixture

7: operating device

     71: clamp

          711: mounting groove 712: fixed surface

          713: slope 714: connecting rod

          715: elastic spring

     72: connection plate 73: cable

     74: guide cover 75: operating handle

The present invention relates to a wheelchair, the lower body of the weak or injured patient is a wheel chair developed to facilitate to stand alone without the support of a separate caregiver.

The use of wheelchairs is a means to move patients or elderly people who are inconvenient to move, and as the lifestyle of stocking increases in Korea, the spread of the wheelchairs is expanding not only to hospitals but also to homes.

These wheelchairs are usually caused by a separate caregiver or moved to bed for people who cannot walk alone, but in the case of the speaker or the elderly who have partial fractures of the legs, they have no lower body strength and can walk on foot. There are many cases that do not support additional.

However, the overall structure consisting of the seat and the back of the wheelchair, the seat is inclined at an angle to the rear in order to sit more comfortably, and the width is large, it can be seen that even normal people need a lot of strength compared to the general chair.

Moreover, the elderly are trying to get up by supplementing the strength of the lower body by holding the armrest and applying the force that causes the upper body, but it cannot be overlooked that it is difficult compared to the healthy normal person.

Recently, wheelchairs that raise and lower seats and backs have been developed and distributed, but this is for relatively severe patients, and it is free to move from floor to wheelchair to bed or vice versa. If you do not need power, the price is expensive, and it is unreasonable to go out freely using a wheelchair.]

In addition, when driving on the uneven surface of the road with a general wheelchair, the vibration caused by the unevenness may impact the thighs or buttocks and cause pain or worsen the pressure sore, but there are very few cases equipped with a shock absorber to prevent this. Can be.

The present invention has been invented to solve the above problems, an object of the present invention is to provide an assisting device so that the elderly and the patient can easily occur in a wheelchair.

In addition, to provide a wheelchair that can absorb the vibration generated from the ground while driving the wheelchair.

In order to achieve the above object, the present invention supports the thigh and the buttocks and the front fixed part fixed width, and the part connected to the fixed part is composed of a movable part which is connected to the hinge and rotatably extended rearward and;

A frame for connecting and fixing the seat, the backrest and the wheel;

A first fixing frame spaced apart from the bottom surface of the seat by a predetermined distance and mounted in the frame so as to be mounted to the frame, the upper surface of which has an insertion groove extending in a longitudinal direction;

A second fixing frame coupled to an upper surface of the first fixing frame and having a locking hole having a same length and a width smaller than that of the insertion groove;

One end of the hinge is coupled to the bottom of the rear of the seat adjacent to both ends rotatably, the other side is inserted into the lower portion corresponding to the insertion groove and the upper portion is extended to the outside of the locking hole of the second fixing frame And an angle adjusting and cushioning device composed of two gas springs each coupled to each other so that a tension force is applied, and a compression coil spring mounted between the hinge couplers;

Fixing protrusions extending in the same direction in the reduced state and the insertion portion is inserted into the fixed protrusions in a predetermined position and fixed to the bottom of the seat in the reduced portion is connected to the fixed pipe of the gas spring and the protruding extension rods A fixing device made of;

Mounting grooves extending to one side adjacent to the outer side corresponding to each of the two hinge hinges of the first fixing frame as close to each other as possible, and inserted into the mounting groove to the outer surface of the hinge coupler in the direction of the insertion groove It has a fixed surface in close contact with the inclined surface connected to the end of the fixed surface and the other side of the inclined surface so that the connecting rod is extended to the rear extending to the outside of the first fixed frame but the force acts in the direction protruding by the elastic spring And a fixing plate, a connecting plate interconnecting the connecting rods, a cable connected to the connecting plate, a guide coating for guiding the cable, and protruding to one side of a handrail of a wheelchair to reciprocate in a predetermined direction. Characterized in that consisting of the operating device consisting of the operating handle to the other side of the connection It's about a wheelchair.

Accordingly, the configuration of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

1 is a perspective view according to an embodiment of the present invention, Figure 2 is a conceptual diagram according to an embodiment of the present invention, in the present invention, the fixing portion 11 and the hinge ( It is divided into the movable part 13 which rotates by 12), and when the said movable part 13 rotates, it helps to arise while pushing a buttocks.

At this time, the fixing part 11 is to allow the buttocks to hang over to prevent the fall to the floor when the slip is not properly supported by the legs.

As a result, the action of pushing the buttocks to the upper part of the body rather than the action of relying solely on the weight of the body makes it possible to stand in the correct posture and reduce the loss of force.

The operation of the device is made by the operation handle 75 and its position can be said to be preferably mounted on the hand 23 as shown in the figure.

Figure 3 is a partial perspective view showing the configuration of the main portion of the present invention, to support the thigh and buttocks in order to function as described above, and fixed in front of the fixed portion 11, the fixed portion 11 and The connected portion is connected to the hinge 12, the seat 1 consisting of a movable portion 12 rotatably extending rearward;

A frame (2) for connecting and fixing the seat (1), the backrest (21) and the wheels (22);

A first spaced apart from the bottom of the seat 1 by a predetermined distance and extending in the directions of both wheels 22 to be mounted to the frame 2, the insertion groove 31 having a predetermined length extending in the longitudinal direction on the upper surface thereof; A fixed frame 3;

A second fixing frame (4) coupled to the upper surface of the first fixing frame (3) and having a locking hole (41) having a width smaller than that of the insertion groove (31) and having the same length;

One side of the seat (1) is coupled to rotatably adjacent to the rear end of both sides, the other side is inserted into the lower portion corresponding to the insertion groove 31 and the upper portion is extended to the engaging hole of the second fixing frame (2) Two gas springs 52 coupled to the ends of the hinge coupler 51 extending outwardly of the 41 to allow tensile force to act, and a compression coil spring mounted between the hinge coupler 51 ( An angle adjusting and cushioning device 5 composed of 53);

Fixed projections 56 extending in the same direction in the reduced state, respectively, in the reduced portion is connected to the fixed pipe 54 and the protruding extension rods 55 of the gas spring 52, the fixed projections 56 at a predetermined position A fixing device 6 formed of an inserting portion 61 into which the insert is inserted and fixed to the bottom of the seat 1;

Both side hinge couplers 51 of the first fixing frame 3 are inserted into the mounting grooves 711 and the mounting grooves 711 extending to one side adjacent to the corresponding outer surfaces, respectively, as close as possible. The inclined surface 713 having a fixed surface 712 in close contact with the outer surface of the hinge coupler 51 in the direction of the insertion groove 31 and connected to the end of the fixed surface 712. The other side of the fixing bar 71 and the connecting rod 714 extends to the rear to extend the first fixing frame 3 outside the force to act in the direction protruding by the elastic spring 715, the connecting rod A connecting plate 72 for interconnecting the 714, a cable 73 connected to the connecting plate 72, a guide coating 74 for guiding the cable 73, and one handrest 23 of a wheelchair. Protrudes to one side of the reciprocating movement in a predetermined direction and the other side of the cable (73) Proposed wheelchair consisting of the operating device (7) consisting of operating handle 75 for connection.

Its detailed operation will be in accordance with the following detailed drawings.

Figure 4 is a side view showing the operation of the seat according to the invention, the rotation of the movable portion 13 is operated by the force pushed by the gas spring 52, the gas spring 52 is pushed up at a constant speed Because of its characteristics, it shows stable motion that is distinguished from other elastic devices.

Figure 5 is a cross-sectional view showing the movement of the operating device according to the present invention, when sitting in a wheelchair, both the hinge coupler 51 is mutually repulsive by the compression coil spring 53, but the fixed surface ( Both ends of the 712 are locked so that the movement is stopped.

When the operation is pushed to the operation handle 75 described above to one side, the cable 73 is pulled, such as a bicycle brake, pull the clamp 71 including the connecting plate 72 to pull both hinge couplers 51 The elasticity of the compression coil spring 53 is moved to the outside.

When the re-resetting process is applied to the movable portion 13 of the seat (1) in the opposite direction, the inclined surface 713 of the fixing bar (71) protruding inward again enters by the hinge coupler (51) and the hinge coupler ( When 51) passes completely, it protrudes again to maintain a fixed state.

6 is a conceptual view illustrating a fixing device according to the present invention, in which a gas is filled in the gas spring 52 to maintain a fixed state of the gas spring 52 under tension, and one side thereof. The fixed protrusions 56 extending in the same direction in the reduced state and the insertion portion 61 into which the fixed protrusions 56 are inserted at a predetermined position are connected to the portions to which the extension rods 55 that extend and extend to extend are connected. In the fixed state, the gas spring 52 is prevented from operating and the gas spring 52 extends only from the state operated by the operation knob.

Figure 7 is a rear view showing a cushioning action according to the present invention, the gas spring 52 is mounted in the shape of the 'V' end of which the upper end is farther away than the lower portion between the hinge coupler 51 A compression coil spring 53 is mounted on the side.

When the wheelchair vibrates due to the unevenness of the ground while driving, the user who puts the buttocks centered on the movable part 13 of the seat 1 exerts downward force by the vibration, which is the hinge coupler 51. It will act as a force to narrow the interval.

At this time, the compression coil spring 53 is to cushion the vibration.

As described above, in the present invention, the elderly or the patient who have difficulty in finding stability in the unstable posture due to weak strength of the lower body or in the wheelchair alone due to weak strength of the upper body stand up relatively easily alone. It has the effect of making it possible.

In addition, by cushioning the seat of the wheelchair to absorb vibration or shock there is an effect of preventing the pain or deterioration of the bedsores by the impact.

Claims (2)

The thigh and the buttocks supporting a fixed width 11 in front of the fixed portion, and the portion connected to the fixed portion 11 is composed of a movable portion 12 is connected to the hinge 12 and rotatably extends to the rear A seat 1; A frame (2) for connecting and fixing the seat (1), the backrest (21) and the wheels (22); The first space is spaced by a predetermined distance to the bottom of the seat (1) extending in the direction of both wheels 22 is mounted to the frame (2), the insertion groove 31 is formed in the upper surface extending a predetermined length in the longitudinal direction A fixed frame 3; A second fixing frame (4) coupled to the upper surface of the first fixing frame (3) and having a locking hole (41) having a width smaller than that of the insertion groove (31) and having the same length; One side of the seat (1) is coupled to rotatably adjacent to the rear end of both sides, the other side is inserted into the lower portion corresponding to the insertion groove 31 and the upper portion is extended to the engaging hole of the second fixing frame (2) Two gas springs 52 coupled to the ends of the hinge coupler 51 extending outwardly of the 41 to allow tensile force to act, and a compression coil spring mounted between the hinge coupler 51 ( An angle adjusting and cushioning device 5 composed of 53); Fixed projections 56 extending in the same direction in a reduced state, respectively, in the reduced portion is connected to the fixed pipe 54 and the protruding extension bar 55 of the gas spring 52, the fixed projection ( A fixing device 6 formed of a fastener 62 formed with an insertion portion 61 into which the 56 is inserted and fixed to the bottom of the seat 1; Both side hinge couplers 51 of the first fixing frame 3 are inserted into the mounting grooves 711 and the mounting grooves 711 extending to one side adjacent to the corresponding outer surfaces, respectively, as close as possible. The inclined surface 713 having a fixed surface 712 in close contact with the outer surface of the hinge coupler 51 in the direction of the insertion groove 31 and connected to the end of the fixed surface 712. The other side of the fixing bar 71 and the connecting rod 714 extends to the rear to extend the first fixing frame 3 outside the force to act in the direction protruding by the elastic spring 715, the connecting rod A connecting plate 72 for interconnecting the 714, a cable 73 connected to the connecting plate 72, a guide coating 74 for guiding the cable 73, and one handrail 23 of the wheelchair. Protrudes to one side of the reciprocating movement in a predetermined direction and the other side of the cable (73) Wheelchair, characterized by consisting of a working device (7) consisting of operating handle 75 for connection. The wheelchair as set forth in claim 1, wherein the gas springs (52) are configured so that their upper ends are spaced farther apart from their lower ends.

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