KR101437374B1 - Variable type wheel chair - Google Patents

Abstract

A variable type wheelchair is disclosed. The variable type wheelchair according to the present invention includes wheels formed at both left and right sides to be rotatable; a lifting and lowering panel formed at the upper side of the wheels; a seating panel positioned on the upper side of the lifting and lowering panel and formed to enable a patient to be seated; and a lifting and lowering device to lift and lower the lifting and lowering panel at the upper part of the wheels, and has a roller at either the seating panel or the lifting and lowering panel, to enable the seating panel to slide out to one side when the seating panel is adhered to the lifting and lowering panel. The present invention is configured to lift or lower the lifting and lowering panel, together with the seating panel, to adjust the height of the wheelchair to the height of a bed. Also, by having a roller, the seating panel can slide out from the lifting and lowering panel, thus enabling the patient to easily move between the bed and the wheelchair without having to apply too much force.

Description

[0001] VARIABLE TYPE WHEEL CHAIR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair, and more particularly, to a variable-type wheelchair that can move while a patient is seated and can be elevated and deformed in shape.

Wheelchairs are wheelchair-mounted vehicles designed for wheelchair users who have difficulty standing or walking, or who need to sit in a stable position, and usually have four-wheel wheels. These wheelchairs are designed to be smuggled from the back by an assistant and have been designed to be driven by the patient himself.

A wheelchair of a generally used type has two rear wheels with a large wheel and a small wheel (casters) in front, and can be folded, one-handed, with a manual chain, and various other purposes .

These wheelchairs provide convenience for the patient to move, but when the patient comes down from the bed to the wheelchair or vice versa from the wheelchair to the bed, the height difference between the bed mattress and the wheelchair chair makes it very difficult for the patient to move himself It is inconvenient and there is a risk of injury if you move too much.

Therefore, most patients are moved with the help of a caregiver or caregiver. In such a case, the process of moving the patient is very difficult and inconvenient.

In order to solve such a problem, various types of wheelchairs have recently been introduced that can solve the inconvenience of moving between a bed and a wheelchair.

In this regard, Korean Patent Registration No. 10-1241663 discloses a "wheelchair ". Specifically, a fulcrum of a lever is rotatably positioned on a wheel axis, a first and a second wheel are disposed in front of the wheel axis, The first and second link bars are opened or closed according to the rotation about the fulcrum of the lever as the axis of the lever is rotated so that the action point of the lever is rotatably engaged with the hinge axis of the link bar. In this case, the height of the seat plate can be changed in the forward and backward directions at the same time with a small force through the link structure that is interlocked and folded by the rotation operation of the handle for pushing the wheelchair, so that the patient can move between the wheelchair and the bed When the height of the seat is adjusted to the height of the bed and moved as close to the bed as possible, It discloses that or caregiver to easily move the patient.

However, the wheelchair disclosed in Korean Patent No. 10-1241663 has to be accompanied by the help of the protector and the caregiver even in the adjustment of the height, and since the patient is not easily moved only by adjusting the height, Improvement is required.

(0001) Korean Patent No. 10-1241663 (Published on March 31, 2013)

It is an object of the present invention to provide a variable-type wheelchair which can be easily moved even in the case of a patient whose height is adjusted and can not move by himself so as to provide convenience when the patient moves between the bed and the wheelchair.

The object is achieved by a wheel comprising: a wheel rotatably formed on both left and right sides; A lift panel formed on the wheel and including a first center panel; An armrest portion rotatably hinged to both sides of the first central panel; A seating panel which is seated on the upper part of the lifting panel and which is adapted to allow the patient to sit and is movable apart from the lifting panel; And a lifting device for lifting the lifting panel above the wheel. A roller is provided on the upper surface of the lifting panel and the inner surface of the armrest so that the lifting panel can be moved to any side while the lifting panel is seated on the lifting panel And the roller is recessed in the lifting panel and the armrest portion to expose only a part thereof. The rotation axis of the roller is formed along the front-rear direction of the lifting panel, and the rim of the roller Is made of rubber. ≪ IMAGE >

Wherein the lifting panel includes: a first center panel connected to the lifting device; A first rear panel rotatably hinged behind said first central panel; And a first front panel rotatably hinged to the front of the first center panel.

The degree of rotation of the first rear panel and the first front panel may be adjusted to be fixed at an arbitrary position with respect to the first central panel.

The seating panel comprising: a second central panel overlying the first central panel; A second rear panel rotatably hinged behind said second central panel and positioned above said first rear panel; And a second front panel rotatably hinged to the front of the second center panel, the second front panel being positioned above the first front panel.

On both sides of the first central panel, an armrest part rotatably hinged can be formed.

A foot mount portion rotatably hinged to the first front panel and formed to allow a patient's foot to be seated can be formed.

The roller may be formed on the lift panel, and the bottom surface of the seating panel may be flat.

The roller may be recessed into the lift panel to be partially exposed, and the rotation axis of the roller may be formed along the front-rear direction of the lift panel.

The roller may be repeatedly formed along the left and right direction of the lift panel.

A handle may be provided on one side of the rim of the seating panel.

A cushion portion may be formed on the seating panel.

Wherein the wheel is rotatably coupled to the base frame, the lifting device comprising: a connecting bar connecting the lifting panel and the base frame to each other, the pair of wheels being rotatably coupled to each other in a direction crossing each other; A sliding part coupled to an end of the connecting bar and slidable in a front-rear direction of the elevating panel; And a power unit for transmitting power to move the sliding unit.

A buffer device may be coupled to the pair of connection bar ends.

According to the present invention, the height of the wheelchair can be adjusted so that the lifting panel is lifted and lowered together with the seating panel, and the seat is slidable relative to the lifting panel by forming the roller, And the wheelchair can be easily moved without applying excessive force.

FIG. 1 is a perspective view showing a variable-type wheelchair according to an embodiment of the present invention,
2 (a) and 2 (b) are views showing the adjustment of the height and the deformed state in the variable wheel chair shown in Fig. 1,
Fig. 3 is a view showing the use state roll when the patient moves to the bed in the variable wheel chair shown in Fig. 1. Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

Fig. 1 is a perspective view showing a variable-type wheelchair 1 according to an embodiment of the present invention, Figs. 2 (a) and 2 (b) Fig.

The variable wheelchair 1 according to the present invention comprises a base frame 60, a wheel 10, a lift panel 20, a seating panel 30 and a lifting device 40.

The base frame 60 forms a lower portion of the variable wheelchair 1 and the wheels 10 are coupled to both sides of the wheelchair 1. The lifting panel 20, the seating panel 30, the elevating device 40, do.

The base frame 60 is generally formed as a rectangular frame, and is preferably made of metal to maintain rigidity.

The wheels 10 are rotatably coupled to both the right and left sides of the base frame 60 and can be divided into a front wheel 11 and a rear wheel 12 for stable movement. The wheels 10 may be simply rotatably coupled on the base frame 60, or otherwise coupled to separate power means.

The lifting panel 20 is spaced apart from the wheel 10 and is not configured to sit on the patient P, but may be generally shaped like a chair. Accordingly, the lift panel 20 is preferably divided into a first center panel 21, a first rear panel 22, and a first front panel 23.

The first central panel 21 constitutes a central portion of the lifting panel 20 and is connected to the lifting device 40. In other words, the first central panel 21 corresponds to a portion that directly ascends and descends by the operation of the elevating device 40. The first central panel 21 is formed in the form of a generally flat plate for the support of the seating panel 30.

The first rear panel 22 is formed on the rear side of the first center panel 21 and pivotally hinged to the first center panel 21. [ The first rear panel 22 may be fixed to form a generally orthogonal shape to the first center panel 21, that is, to have a shape substantially similar to that of the first center panel 21, (Rotated in the clockwise direction in Fig. 1) so as to have a shape substantially like '━'.

However, it is preferable that the degree of rotation of the first rear panel 22 is adjusted so as to be fixed at an arbitrary position with reference to the first central panel 21, and an angle adjusting device 80 may be formed for this purpose. The angle regulating device 80 of the first rear panel 22 may be manually operated with a structure such as a pawl and a ratchet and may alternatively be a combination of a motor and a gear. That is, in the latter case, the angle regulating device 80 may be a combination of the electric motor 81 and the plurality of reduction gears 82, and the drive gear 83 engaging with the reduction gear 82 may be a combination of the first rear panel (22a) of the first rear panel (22) to adjust the degree of rotation of the first rear panel (22).

At this time, a control unit and a switch S may be formed on one side of the lift panel 20 for adjusting the angle adjusting device 80.

The first front panel 23 is formed on the front side of the first center panel 21 and is hinged to be rotatable on the first center panel 21. [ The first front panel 23 can be fixed to form a generally orthogonal shape to the first center panel 21, that is, to have a shape similar to '┏' together with the first center panel 21, (Rotated in the clockwise direction in Fig. 1) so as to have a shape substantially like '━'.

The footrest 25 may be hinged to an end of the first front panel 23. [ The footrest portion 25 may be stored on the depression 26 of the first front panel 23 and may be withdrawn in use so that the foot of the patient P is placed thereon.

The degree of rotation of the first front panel 23 is adjusted so as to be fixed at an arbitrary position with reference to the first central panel 21. For this purpose, An apparatus can be formed.

In addition, a control unit and a switch S may be formed on one side of the lift panel 20 for adjusting the device for adjusting the angle of the first front panel 23.

On both sides of the first central panel 21, an armrest portion 24 rotatably hinged can be formed. When the patient P moves between the bed B and the wheelchair, the armrest portion 24 maintains a shape orthogonal to the first central panel 21 when the wheelchair is used as a normal wheelchair. In the same plane.

The seating panel 30 is seated above the lift panel 20, and the patient P is seated. Accordingly, the seating panel 30 may have a shape similar to a chair and may be divided into a second central panel 31, a second rear panel 32, and a second front panel 33.

The seating panel 30 is configured to be movable from one side of the lift panel 20 to the other and is not completely fixed to the lift panel 20. However, when the patient P is sitting on the wheelchair, And the elevating panel 20 are not required to be moved, a separate fixing means (not shown) may be provided for stable fixing of both.

The second central panel 31 is placed above the first central panel 21 and is formed in the form of a generally flat plate.

The second rear panel 32 is formed in the form of a generally flat plate, is formed on the rear side of the second center panel 31, and is hinged to be pivotable on the second center panel 31. The second rear panel 32 may have a shape that is generally orthogonal to the second center panel 31, that is, a shape that is similar to the '┛' with the second center panel 31, In a clockwise direction) to form a shape like '━'.

The second front panel 33 is also formed in the form of a generally flat plate, formed on the front side of the second center panel 31, and hinged on the second center panel 31 so as to be rotatable. The second front panel 33 may have a shape that is substantially orthogonal to the second center panel 31, that is, a shape such as '┏' together with the second center panel 31, In a clockwise direction) to form a shape like '━'.

A handle 34 may be provided on one side of the rim of the seating panel 30 and a handle 34 may be provided on the second rear panel 32 and the second front panel 33, May be provided.

A cushion portion 35 may be formed on the seating panel 30.

A roller 50 is formed on one of the seating panel 30 and the lift panel 20 in the variable-type wheelchair 1 according to the present invention. The roller 50 prevents the sitting panel 30 from moving up and down the lift panel 20, So that it can be slid to any side.

The roller 50 may be formed on the upper surface of the lifting panel 20 and the roller 50 may be rotated and moved to either side with the seating panel 30 on the roller 50. Alternatively, The upper surface of the lifting panel 20 may be formed flat and the roller 50 may be formed on the bottom surface of the seating panel 30 to be moved.

In the variable-type wheelchair 1 according to the present invention, the roller 50 is preferably formed on the side of the lift panel 20, and in particular, the roller 50 is recessed in the lift panel 20, .

That is, a depressed portion 26 is formed on the upper surface of the lifting panel 20, and the cylindrical roller 50 is rotatably engaged with the depressed portion 26 while being accommodated. As a result, it is possible to prevent the lifting panel 20 and the seating panel 30 from unnecessarily largely separated from each other. When the seating panel 30 is fixed on the lifting panel 20, stable support can be achieved. It is possible to minimize the impact when the panel 30 moves on the basis of the lift panel 20. [

In the variable-type wheelchair 1 according to the present invention, the rim portion of the roller 50 is preferably made of a material such as rubber, thereby more effectively mitigating the impact when the seat panel 30 is moved, Stable movement of the seating panel 30 can be achieved by friction with the bottom surface.

The roller 50 is preferably formed repeatedly along the left and right direction of the lifting panel 20 and is formed not only on the first center panel 21 but also on the first rear panel 22 and the first front panel 23 . The roller 50 may also be formed on the inner surface of the armrest portion 24. When the patient P moves from the wheelchair to the bed B, the sitting panel 30 is not only above the lift panel 20, (24).

The lifting device (40) lifts the lifting panel (20) above the wheel (10) and can be manually operated or automatically operated. The elevating device 40 may be a combination of gears for converting rotational motion into linear motion, or may be a combination of the connecting bar 41, the sliding portion 42, and the power portion 43 ). ≪ / RTI >

The connecting bar 41 and the sliding portion 42 may be provided on both sides of the wheelchair 1, respectively.

The connecting bar 41 connects the lifting panel 20 and the base frame 60 to each other and is rotatably coupled in a direction in which the pair of the lifting panel 20 and the base frame 60 intersect with each other. The pair of connection bars 41 may be formed of a plurality of combinations, and each end may be sequentially connected.

2, the gap between the lifting panel 20 and the base frame 60 becomes closer to each other (refer to FIG. 2 (a)) depending on the degree of rotation of the pair of connecting bars 41 2 (b)).

The sliding portion 42 is coupled to an end portion of one of the connecting bars 41b so as to slide in the front-rear direction of the lifting panel 20. That is, the sliding portion 42 slides in a direction in which the ends of the pair of connecting bars 41a and 41b are moved toward or away from each other, thereby varying the length of the entire connecting bar 41, To move up or down.

The power section (43) transmits power to move the sliding section (42). The power section 43 may be a combination of the electric motor 43a and the gear 43b and the sliding section 42 may be formed by a combination of the gear 43b of the power section 43 and the rack and pinion It can slide in the form of sliding.

A control unit and a switch S may be formed on one side of the lift panel 20 for adjusting the lift apparatus 40. [

In the variable-type wheelchair 1 according to the present invention, the shock absorber 70 can be coupled to the ends of the pair of the connecting bars 41, thereby preventing the distance between the connecting bars 41 from being abruptly changed. The shock absorber 70 may be formed in the same shape as a conventional hydraulic cylinder.

When the lift panel 20 is suddenly lowered due to an operation error, malfunction, or failure of the lifting device 40 while the height of the lifting panel 20 is moved higher by the lifting device 40, 70 prevent sudden movement of the lift panel 20 and minimize the impact on the patient P.

Fig. 3 is a view showing the use state roll when the patient P moves to the bed B in the variable-type wheelchair 1 shown in Fig. 1. Fig.

3, when the patient P moves between the bed B and the variable-type wheel chair 1 according to the present invention, the height of the lift panel 20 is first raised by operating the lift device 40 , So that the height of the seating panel 30 is generally close to the height of the bed B.

At this time, the first rear panel 22, the first front panel 23, the second rear panel 32 and the second front panel 33 are unfolded so that the first and second front panels 33, It is preferable that the first center panel 21 and the second center panel 31 are adjusted to be flush with each other.

Next, the armrest portion 24 to which the patient P is to be moved is rotated so that the seating panel 30, the armrest portion 24, and the bed B form a substantially flat surface.

The patient P is moved by gripping the grip 34 of the seating panel 30 so that the seating panel 30 can be moved to one side of the upper side of the roller 50 of the lift panel 20. [

As described above, according to the present invention, the lift panel 20 is elevated and lowered together with the seating panel 30 to adjust the height of the wheelchair to match the height of the bed B, The sitting panel 30 can be slid with respect to the panel 20 so that the patient P can easily move without the need for excessive force when the patient P moves between the bed B and the wheelchair.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

1: Variable wheelchair 10: Wheel
20: lift panel 21: first central panel
22: first rear panel 23: first front panel
24: armrest portion 25: footrest portion
26: Depression
30: sitting panel 31: second central panel
32: second rear panel 33: second front panel
34: Handle
35: Cushion part
40: lifting device 41: connecting bar
42: Sliding part 43: Power part
50: roller 60: base frame
70: shock absorber

Claims (13)

A wheel rotatably formed on both right and left sides;
A lift panel formed on the wheel and including a first center panel;
An armrest portion rotatably hinged to both sides of the first central panel;
A seating panel which is seated on the upper part of the lifting panel and which is adapted to allow the patient to sit and is movable apart from the lifting panel; And
A lifting device for lifting the lifting panel above the wheel,
A roller is formed on an upper surface of the lifting panel and an inner surface of the armrest portion so that the seat panel can be moved to any side in a state where the seat panel is seated on the lifting panel,
Wherein the roller is recessed in the lifting panel and the armrest portion to be partially exposed,
The rotation axis of the roller is formed along the front-rear direction of the lift panel,
Wherein a rim of the roller is made of rubber so as to alleviate an impact when the sitting panel is moved. The method according to claim 1,
The elevating panel includes:
The first central panel connected to the elevating device;
A first rear panel rotatably hinged behind said first central panel; And
And a first front panel rotatably hinged to the front of the first center panel. 3. The method of claim 2,
Wherein the degree of rotation of the first rear panel and the first front panel is adjusted so as to be fixed at an arbitrary position with respect to the first central panel. 3. The method of claim 2,
Wherein the seating panel comprises:
A second central panel overlying the first central panel;
A second rear panel rotatably hinged behind said second central panel and positioned above said first rear panel; And
And a second front panel hinged to be rotatable in front of the second center panel and resting on the first front panel. delete 3. The method of claim 2,
Wherein a foot rest portion rotatably hinged to the first front panel and formed to allow a patient's foot to be seated is formed on the first front panel. The method according to any one of claims 1 to 4 and 6,
Wherein the seat back panel is formed flat. delete The method according to claim 1,
Wherein the roller is repeatedly formed along the left-right direction of the lift panel. The method according to any one of claims 1 to 4 and 6,
Wherein a handle is formed through one side of the rim of the seating panel. The method according to any one of claims 1 to 4 and 6,
And a cushion portion is formed on the upper side of the seating panel. The method according to any one of claims 1 to 4 and 6,
The wheel being rotatably coupled to the base frame,
The lift device,
A connecting bar connecting the elevating panel and the base frame to each other, wherein the connecting bar is rotatably coupled in a direction in which the pair of the elevating panel and the base frame cross each other;
A sliding part coupled to an end of the connecting bar and slidable in a front-rear direction of the elevating panel; And
And a power portion for transmitting power to move the sliding portion. 13. The method of claim 12,
And a shock absorber is coupled to the ends of the pair of connection bars.

Images