KR102180116B1 - Folding electric wheelchair where a drive module can be detached - Google Patents

Abstract

According to a wheelchair according to an embodiment of the present invention, there is provided a wheelchair in which a person can be moved while a person is seated, comprising: a seat unit providing a predetermined area in which the user can be seated; A frame portion supporting the seat portion so that the seat portion may be positioned at a predetermined height; A first wheel part connected to the front or rear of the frame part; And a driving module connected to the frame part so as to face the first wheel part, wherein the driving module includes a 2-1 wheel part disposed on one side of the frame part and a second second wheel part disposed on the other side of the frame part. -2 It may be characterized in that it has a wheel part and can be detached from the frame part.

Description

Folding electric wheelchair with detachable drive module {FOLDING ELECTRIC WHEELCHAIR WHERE A DRIVE MODULE CAN BE DETACHED}

The present invention relates to a folding electric wheelchair in which a driving module can be separated, and to a folding electric wheelchair in which a driving module in which a person can be moved in position while a person is seated can be separated.

Wheelchair is an indispensable means of transportation for people with spinal cord paralysis who have many restrictions on mobility. Manual wheelchairs used by many people with disabilities are generally made of aluminum frames of around 20kg, and users can fold the wheelchair left and right to easily load it into the vehicle. However, since the user must directly drive the wheelchair, there is a problem that the upper body muscle fatigue increases. On the other hand, since the electric wheelchair is powered by electricity and is operated by the power of a motor, there is an advantage of less muscle fatigue of the user.

However, since the electric wheelchair body is heavy and bulky, it can only be moved by a special vehicle equipped with a ramp or lift, so it is not suitable for long-distance travel. In addition, due to the heavy weight of the electric wheelchair, the existing electric wheelchair has many restrictions on movement.

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Japanese Unexamined Patent Application Publication No. 2000-084008, 2000.03.28, published

An object of the present invention is to provide a folding electric wheelchair capable of separating a drive module that is easy to move and store in order to solve the above problems.

However, the problem to be solved by the present invention is not limited to the above-described problems, and the problems that are not mentioned may be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings. There will be.

According to a folding electric wheelchair from which a drive module according to an embodiment of the present invention can be separated, in a wheelchair in which a person can be moved while a person is seated, a seat providing a predetermined area in which a user can be seated part; A frame portion supporting the seat portion so that the seat portion may be positioned at a predetermined height; A first wheel part connected to the front or rear of the frame part; And a driving module connected to the frame part so as to face the first wheel part, wherein the driving module includes a 2-1 wheel part disposed on one side of the frame part and a second second wheel part disposed on the other side of the frame part. -2 It may be characterized in that it has a wheel part and can be detached from the frame part.

In addition, the driving module. Power to provide power to rotate the 2-1 wheel part and the 2-2 wheel so that the 2-1 wheel part and the 2-2 wheel part are rotated to move the frame part It may be characterized in that it further comprises a drive frame unit connected to the unit and the 2-1 wheel unit, the 2-2 wheel unit, and the power unit.

Further, a separation limiting unit connected to the frame unit and restricting separation of the frame unit from the driving module, wherein the driving module is connected to at least one of the power unit and the driving frame unit, and the Further comprising an intermediate portion providing a predetermined area in which the frame portion is seated, and the separation limiting portion, when in the first state, restricts separation of the frame portion seated in the intermediate portion from the driving module, and is in a second state. In this case, it may be characterized in that it does not limit the separation of the frame portion seated on the intermediate portion from the driving module.

In addition, the intermediate portion includes an intermediate body portion providing a seating area, which is a predetermined area in which the frame portion is seated, and the intermediate body portion has an insertion hole into which the separation limiting portion is inserted, and the separation limiting portion includes a first In the case of a state, the frame portion inserted into the insertion hole and seated in the intermediate portion is restricted from being separated from the driving module, and in the second state, the frame portion separated from the insertion hole and seated in the intermediate portion Separation from the driving module may not be limited.

In addition, the separation limiting unit includes a limiting housing unit connected to the frame unit to provide a predetermined internal space, and a rod unit that is moved in position on the inner space of the limiting housing, and the rod unit is inserted in the first position. It is inserted into the hole to limit separation of the frame part seated in the intermediate part from the driving module, and in the second position, the frame part seated in the intermediate part is separated from the driving module by being pulled out from the insertion hole It may be characterized by not being able to limit what becomes.

In addition, the intermediate portion includes an intermediate body portion providing a seating area, which is a predetermined area in which the frame portion is seated, and a guide portion connected to the intermediate body portion to which the frame portion is fixed, and the frame portion, the separation limiting portion It may be separated from the insertion hole, the frame portion is moved in a position while the guide portion is fixed, and the separation limiting portion is inserted into the insertion hole, thereby being coupled to the driving module.

In addition, an intermediate protrusion protruding from the frame portion in one direction; wherein the guide portion includes a recessed portion in which the upper surface of the guide portion is recessed so that the intermediate protrusion is seated so that the frame portion is fixed to the guide portion. It is formed, and the depression may be characterized in that it is formed in the guide portion so as to face the insertion hole with respect to the seating area.

In addition, the seat portion includes a first seat portion for supporting a user's back and a second seat portion for a user to be seated, and the frame portion includes one surface of the first seat portion when the frame portion has a first shape. And one surface of the second seat part are spaced apart from each other, and when the frame part has a second shape, the shape may be deformed so that one surface of the first seat part and one surface of the second seat part contact each other.

In addition, the frame portion, a first frame portion to which the first seat portion is connected, a second frame portion connected to the first frame portion so that the second seat portion is connected and can be rotated based on the first frame portion, the A third frame part connected to the first frame part to be rotated based on the first frame part, a fourth frame part connected to the third frame part to be rotated based on the third frame part, the third It characterized in that it comprises a fifth frame part connected to the third frame part and the fourth frame part, and a connection frame part connected to the fifth frame part and the first wheel part so as to be rotated based on the frame part. I can.

In addition, the frame portion further includes an intermediate frame portion connected to the fourth frame portion so as to be rotated with respect to the fourth frame portion, the second frame portion, and one end portion of the second frame portion is the first frame portion It is connected to the first frame portion so as to be rotatable based on the reference, and the other end of the second frame portion may be arranged to be seated on the upper side of the intermediate frame portion.

In addition, a folding limiting unit configured to determine whether or not the first frame unit is rotatable based on the second frame unit, wherein the folding limiting unit further includes, in the case of the first position, the first frame unit based on the second frame unit. The positional movement of the first frame part is restricted so that the frame part cannot be rotated, and in the second position, the positional movement of the first frame part is not limited so that the first frame part is rotated with respect to the second frame part. If provided, it may be characterized in that the position is moved from the first position to the second position.

In addition, the first wheel portion includes a first wheel that rotates in contact with the ground when the frame portion is moved, and a first shaft portion connected to the first wheel and the frame portion, and the first shaft portion includes the When the frame part has a first shape, it can be rotated based on the frame part, and when the frame part has a second shape, it may not be rotated based on the frame part.

In addition, when the frame portion has a first shape, the rotational motion of the first shaft portion cannot be restricted, and when the frame portion has a second shape, a stopper portion for restricting the rotational motion of the first shaft portion; further comprising, the stopper The portion may be rotated when the frame portion is deformed from a first shape to a second shape to limit the rotational motion of the first shaft portion.

According to the folding electric wheelchair from which the driving module of the present invention can be separated, it can be easily moved and stored.

In addition, it is possible to secure a size large enough to be used by the disabled.

However, the effects of the present invention are not limited to the above-described effects, and effects not mentioned will be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings.

1 is an overall perspective view of a wheelchair according to an embodiment of the present invention
2 is a view showing a driving module of a wheelchair according to an embodiment of the present invention
3 is an enlarged view of a separation limiter provided in a wheelchair according to an embodiment of the present invention
4 is a view for explaining a process in which a frame part provided in a wheelchair according to an embodiment of the present invention is coupled to a drive module provided in the wheelchair
5 is a rear perspective view of a wheelchair according to an embodiment of the present invention
6 is an enlarged view of part A of FIG. 5
7 is an upper perspective view of a wheelchair according to an embodiment of the present invention
FIG. 8 is an enlarged view of part A of FIG. 1
9 is a view for explaining a process of operating a folding limit unit provided in a wheelchair according to an embodiment of the present invention
10 is a view for explaining a process of folding a wheelchair according to an embodiment of the present invention
11 is an enlarged view showing a fifth frame coupling part provided in a wheelchair according to an embodiment of the present invention
12 is an enlarged view of a fifth frame coupling part when a wheelchair according to an embodiment of the present invention is in a storage state

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention can add, change, or delete other elements within the scope of the same idea. Other embodiments included within the scope of the inventive concept may be easily proposed, but it will be said that this is also included within the scope of the inventive concept.

In addition, components having the same function within the scope of the same idea shown in the drawings of each embodiment will be described with the same reference numerals.

In the present specification, when it is determined that a detailed description of a known configuration or function related to the present invention may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

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

Referring to FIG. 1, in a wheelchair according to an embodiment of the present invention, in a wheelchair in which a person can be moved while a person is seated, a seat portion 10 providing a predetermined area in which a user can be seated, A frame part 20 supporting the seat part 10 so that the seat part 10 can be positioned at a predetermined height, and a first wheel part 30 connected to the front or rear of the frame part 20 And a driving module 40 connected to the frame part 20 so as to face the first wheel part 30.

In addition, the wheelchair may further include a separation limiting unit connected to the frame unit 20 and limiting separation of the frame unit from the drive module 40.

In addition, the wheelchair may further include a folding limiting unit that determines whether the frame unit 20 is folded.

In addition, the wheelchair may further include an intermediate protrusion 70 protruding from the frame 20 in one direction.

The first wheel part 30 includes a first wheel 31 that is rotated in contact with the ground when the frame part is moved, and a first shaft part 32 connected to the first wheel 31 and the frame part. Can be equipped.

As a specific example, one first wheel part 30 may be connected to the frame part in one direction of the frame part, and the other first wheel part 30 is the frame part in the other direction of the frame part. Can be connected to

Here, the first wheel 31 may be connected to the frame portion in a forward direction of the frame portion.

Accordingly, the driving module 40 may be connected to the frame portion in the rear direction of the frame portion.

2 is a view showing a driving module of a wheelchair according to an embodiment of the present invention.

Referring to FIG. 2, the driving module 40 may include a 2-1 wheel part 41 disposed on one side of the frame part and a 2-2 wheel part 42 disposed on the other side of the frame part. have.

In addition, the driving module 40 is the 2-1 wheel part (the 2-1 wheel part ()) so that the 2-1 wheel part 41 and the 2-2 wheel part 42 are rotated so that the frame part can be moved in position. 41) and the power unit 43 that provides power to rotate the 2-2 wheel 42a, the 2-1 wheel part 41, the 2-2 wheel part 42, the A drive frame part 44 connected to the power part 43 may be further provided.

In addition, the driving module 40 may further include an intermediate unit 45 connected to at least one of the power unit 43 and the driving frame unit 44 and providing a predetermined area in which the frame unit is seated. have.

The power unit 43 may store predetermined energy.

For example, the power unit 43 may be a battery that stores electric energy.

However, the shape of the power unit 43 is not limited thereto and can be variously modified at a level that is obvious to a person skilled in the art.

The 2-1 wheel part 41 is a 2-1 wheel 41a that rotates in contact with the ground and a second wheel that rotates the 2-1 wheel 41a by receiving energy from the power unit 43. A 2-1 rotating part 41b may be provided.

Likewise, the 2-2 wheel part 42 rotates the 2-2 wheel 42a by receiving energy from the 2-2 wheel 42a and the power part 43 rotated in contact with the ground. It may be provided with a 2-2 rotating part (42b) to let.

The 2-1 rotation part 41b may be connected to one side of the driving frame part 44.

The 2-1 wheel 41a may be connected to the 2-1 rotating part 41b.

In addition, the 2-2 rotation part 42b may be connected to the other side of the driving frame part 44.

The 2-2 wheel 42a may be connected to the 2-2 rotating part 42b.

The power unit 43 may be connected to a middle portion of the drive frame unit 44.

The intermediary part 45 may mediate the driving frame part 44 and the frame part with each other.

As a specific example, the intermediate part 45 is connected to the intermediate body 45a and the intermediate body 45a providing a seating area R42, which is a predetermined area in which the frame part is seated, and the frame part is fixed It may be provided with a guide portion (45b).

A plurality of intermediate parts 45 may be disposed.

As a specific example, one intermediate part 45 may be connected to the 2-1 rotation part 41b, and the other intermediate part 45 may be connected to the 2-2 rotation part 42b. .

The shape of the intermediate body portion 45a may be determined corresponding to the shape of the frame portion connected to the intermediate body portion 45a.

For example, the medium body portion 45a may have a'b' shape or a'C' shape.

As an example, the intermediate body portion 45a provides a first intermediate body portion 45a-1 providing a part of the seating area R42 and the remaining part of the seating area R42, and the A second intermediate body portion 45a-2 connected to the first intermediate body portion 45a-1 may be provided.

However, the shape of the medium body portion 45a is not limited thereto and may be variously modified at a level that is obvious to a person skilled in the art.

The intermediate body portion 45a may be provided with an insertion hole h45 that penetrates from one surface to the other surface.

For example, the insertion hole h45 may be formed in the first intermediate body portion 45a-1.

The guide part 45b may be connected to the intermediate body part 45a in one lateral direction with respect to the seating area R42.

The guide part 45b may limit the positional movement of the frame part seated in the seating area R42 in one direction.

As a specific example, the guide part 45b may be connected to one side of the intermediate body part 45a in the direction of the 2-1 wheel 41a.

In addition, the guide part 45b may be connected to one side of the intermediate body part 45a in the 2-2 direction.

The guide part 45b has a recessed part P45 in which the upper surface of the guide part 45b is recessed so that the intermediate protrusion 70 is seated so that the frame part is fixed to the guide part 45b. There may be.

Here, the recessed part P45 may be formed in the guide part 45b so as to face the insertion hole h45 with respect to the seating area R42.

For example, the insertion hole h45 may be formed at one end of the first intermediate body part 45a-1, and the other end of the first intermediate body part 45a-1 is the intermediate body part ( It may be connected to one end of 45a), and the concave portion P45 may be formed in the guide portion 45b in the direction of the other end of the second intermediate body portion 45a-2.

3 is an enlarged view of a separation limit unit provided in a wheelchair according to an embodiment of the present invention.

Referring to FIG. 3, the separation limiting part 50 is connected to the frame part to provide a predetermined internal space, and a load part moved in position on the internal space of the limiting housing part 51 (52) can be provided.

In addition, the separation limiting part 50 may further include a separation elastic part 53 that provides elasticity to the rod part 52.

In addition, an external force transmission unit 54 for transmitting an external force to the rod unit 52 may be further provided.

In addition, a separation limiting unit 50 may be further provided connected to the separation elastic unit 53 to limit movement of a portion of the separation elastic unit 53.

The restriction housing 51 may be connected to the frame to provide a predetermined space therein.

As a specific example, the limit housing part 51 may be connected to one end of the fourth frame part 24 to be described later.

A part of the load part 52 may be disposed in an inner space provided by the limiting housing part 51.

An arrangement space S52 formed by penetrating a portion of the top surface of the rod portion 52 from the top surface of the rod portion 52 to the bottom surface of the rod portion 52 may be provided.

One end of the rod part 52 may be inserted into the insertion hole h45.

One end of the rod part 52 may be formed to be inclined.

As a specific example, one end of the rod part 52 may be formed to be inclined from an upper side to a lower side.

The other end of the rod part 52 may be connected to the external force transmission part 54.

The external force transmission part 54 may be connected to the other end of the rod part 52.

The external force transmission unit 54 may receive a predetermined external force.

When an external force is provided to the external force transmission unit 54, the rod unit 52 may be moved in position.

The separation elastic part 53 may be disposed in the arrangement space S52.

The separation limiting part 50 disposed through the upper surface of the limiting housing part 51 may be connected to the separation elastic part 53.

Accordingly, when the rod portion 52 is moved, the separation elastic portion 53 may contract and expand without being moved in position together with the rod portion 52.

Hereinafter, a process in which the driving module 40 is detached from the frame unit will be described in detail.

4 is a view for explaining a process in which a frame part provided in a wheelchair according to an embodiment of the present invention is coupled to a driving module provided in the wheelchair.

2 to 4, when the separation limiting unit 50 is in the first state, the separation limiting unit 50 is provided with the frame unit mounted on the intermediate unit 45 from the driving module 40. You can limit the separation.

When the separation limiting part 50 is in the second state, the separation limiting part 50 may not be able to limit the separation of the frame part seated on the intermediate part 45 from the driving module 40.

The intermediate body portion 45a may have an insertion hole h45 into which the separation limiting portion 50 is inserted.

When the separation limiting part 50 is in the first state, the separation limiting part 50 is inserted into the insertion hole h45 and the frame part seated in the intermediate part 45 is removed from the driving module 40. You can limit the separation.

When the separation limiting part 50 is in the second state, the separation limiting part 50 is separated from the insertion hole h45 and the frame part seated in the intermediate part 45 is removed from the driving module 40. It may not be possible to limit what is separated.

When the rod portion 52 is in the first position, the rod portion 52 is inserted into the insertion hole h45 to separate the frame portion seated in the intermediate portion 45 from the driving module 40 You can limit what you become.

When the load part 52 is in the second position, the load part 52 is separated from the insertion hole h45, and the frame part seated in the intermediate part 45 is separated from the driving module 40 You may not be able to limit what you become.

Here, when the separation limiting unit 50 is in the first state, it may mean that the rod unit 52 is in the first position.

In addition, when the separation limiting unit 50 is in the second state, it may mean a case in which the rod unit 52 is in the second position.

Here, when the rod part 52 is in the first position, elastic energy may not be stored in the separating elastic part 53.

In addition, when the rod portion 52 is in the first position, one end of the rod portion 52 may be located outside the limit housing portion 51.

Here, when the rod part 52 is in the second position, elastic energy may be stored in the separating elastic part 53.

In addition, when the rod portion 52 is in the second position, one end of the rod portion 52 may be disposed in the inner space of the limiting housing portion 51.

The frame part is moved in position while the separation limiting part 50 is separated from the insertion hole h45 and the frame part is fixed to the guide part 45b so that the separation limiting part 50 is moved to the insertion hole ( h45) may be coupled to the driving module 40.

Hereinafter, a process in which the driving module 40 and the frame unit are coupled will be described in detail.

2 to 4, a process in which the driving module and the frame unit are coupled will be described in detail.

Referring to FIG. 4A, an intermediate protrusion 70 protruding from a side surface of the fourth frame part 24 may be seated in the depression P45.

In this case, one end of the fourth frame part 24 may not be seated in the seating area R42.

In addition, the rod part 52 may be spaced apart from the intermediate body part 45a.

Also, the rod part 52 may be in the first position.

The frame part may be fixed from the intermediate body part 45a by the guide part 45b.

Here, the temporary fixing may mean that the position of the frame portion is restricted in some directions.

For example, when the intermediate protrusion 70 is seated in the recess P45, the fourth frame part 24 may be limited in position movement in the forward direction of the driving module 40.

4(b), in order for one end of the fourth frame part 24 to be seated in the seating area R42, the fourth frame part 24 is rotated based on the intermediate protrusion 70. I can.

As an example, the fourth frame part 24 may be rotated in a clockwise direction, but is not limited thereto and may be variously modified at a level that is obvious to a person skilled in the art.

Due to the rotation of the fourth frame part 24, one end of the rod part 52 may come into contact with one end of the first intermediate body part 45a-1.

That is, one end of the rod portion 52 may span the upper surface of the first intermediate body portion 45a-1.

In addition, a part of one end portion of the fourth frame portion 24 may be seated in the seating area R42 of the first intermediate body portion 45a-1.

4(C), the fourth frame part 24 is in a state in which one end of the rod part 52 is in contact with one end of the first intermediate body part 45a-1 ( For example, in correspondence with rotation in the clockwise direction), one end of the rod part 52 may be gradually moved to the inner space of the limiting housing part 51.

When the fourth frame part 24 is rotated in one direction (for example, clockwise) while one end of the rod part 52 spans the upper surface of the first intermediate body part 45a-1, The reason why one end of the rod part 52 is moved to the inner space of the limit housing part 51 may be because one surface of the one end of the rod part 52 is formed to be inclined.

4(d), one end of the rod part 52 is inserted into the inner space of the limiting housing part 51, and one end of the rod part 52 corresponds to the insertion hole h45. When positioned at the position, the rod part 52 may be inserted into the insertion hole h45 by the separating elastic part 53.

In other words, the rod part 52 may be moved to the second position by the first intermediate body part 45a-1 and then moved to the first position to be inserted into the insertion hole h45.

Hereinafter, a process in which the driving module and the frame unit are separated will be described in detail.

When a user provides an external force to the external force transmission unit 54, the rod unit 52 may be moved from the first position to the second position.

In this case, as the rod part 52 is moved from the first position to the second position, the separating elastic part 53 may be contracted to store elastic energy.

Accordingly, one end of the rod part 52 may be withdrawn from the insertion hole h45.

Due to this, the frame portion may be separated from the intermediate portion 45.

After the frame part is separated from the intermediate part 45, when the user removes the external force from the external force transmission part 54, the rod part 52 is controlled by the elastic energy of the separation elastic part 53. The position can be moved from the 2nd position to the 1st position.

5 is a rear perspective view of a wheelchair according to an embodiment of the present invention.

Referring to FIG. 5, a seat portion 10 included in a wheelchair according to an embodiment of the present invention includes a first seat portion 11 capable of supporting a user's back and a second seat portion capable of seating a user. (12) can be provided.

In addition, the frame part included in the wheelchair according to an embodiment of the present invention is connected to the first frame part 21 to which the first seat part 11 is connected, and the second seat part 12 to be connected to the first frame. The second frame part 22 connected to the first frame part 21 so as to be rotated based on the part 21, and the first frame part to be rotated based on the first frame part 21 A third frame part 23 connected to (21), a fourth frame part 24 connected to the third frame part 23 so that it can be rotated based on the third frame part 23, 3 The fifth frame part 25 connected to the third frame part 23 and the fourth frame part 24 and the fifth frame part 25 so that they can be rotated based on the frame part 23 A connection frame part 26 (refer to FIG. 7) connected to the first wheel part 30 may be provided.

In addition, the frame portion may further include an intermediate frame portion 27 (refer to FIG. 7) connected to the fourth frame portion 24 so as to be rotated with respect to the fourth frame portion 24.

In addition, the frame portion further includes a support frame portion 28 connected to the first frame portion 21 and the second frame portion 22 and capable of supporting the hand of a person seated in the seat portion 10. Can be equipped.

Hereinafter, the coupling relationship for each frame unit will be described in detail.

The first frame part 21 is fixed to the first frame body part 21a extending in the longitudinal direction and the middle part of the first frame body part 21a to be coupled to the second frame part 22. A 1-1 frame coupling portion 21b and a 1-2 frame coupling portion 21c fixed to one end of the first frame body portion 21a and coupled to the third frame portion 23 may be provided. have.

The first frame part 21 may be plural.

For example, the first frame portion 21 is two, and one first frame portion 21 and the other first frame portion 21 may be disposed to be spaced apart from each other.

Here, the first seat portion 11 may be disposed between the first frame portion 21 on one side and the first frame portion 21 on the other side.

When the wheelchair is in use, the first frame body 21a may form an acute angle with an imaginary line orthogonal to the ground.

The direction in which the 1-2 frame coupling part 21c is fixed to the first frame body part 21a and the 1-1 frame coupling part 21b is fixed to the first frame body part 21a Directions can be opposite to each other.

The 1-1th frame coupling portion 21b and the 1-2th frame coupling portion 21c may have a plate shape having a predetermined thickness in which a fastening hole is formed.

A fastening means may be fastened to the fastening hole, and thus the first frame body 21a may be rotated.

The second frame part 22 is fixed to the second frame body part 22a and the second frame body part 22a on which the second seat part 12 is disposed, and is coupled to the first frame part 21 It may be provided with a second frame coupling portion (22b).

The second frame body portion 22a may have a second seat portion 12 disposed on the upper side thereof.

When the wheelchair is in a used state, the second frame body 22a may form an acute angle with the ground.

The second frame coupling portion 22b may be fixed to one end of the second frame body portion 22a.

As a specific example, the second frame coupling portion 22b may be fixed to one end of the second frame body 22a in the direction of the second wheel.

The second frame coupling portion 22b may be plural.

As a specific example, one second frame coupling portion 22b may be fixed to one side of the second frame body portion 22a, and the other second frame coupling portion 22b is the second frame It may be fixed to the other side of the body portion (22a).

A fastening hole may be formed in the second frame coupling portion 22b.

A fastening means is fastened to the fastening hole of the second frame combining part 22b and the fastening hole of the 1-1 frame combining part 21b, so that the second frame combining part 22b and the 1-1 frame The coupling portions 21b may be coupled to each other.

For this reason, the first frame body part 21a may be rotated based on the second frame part 22.

In addition, the second frame body portion 22a may be rotated based on the first frame portion 21.

The one second frame coupling portion 22b and the other second frame coupling portion 22b are provided with one first-first frame coupling portion 21b and the other 1-1th frame coupling portion 21b. ) Can be placed between.

In other words, the first frame part 21 may be disposed outside the second frame part 22.

The support frame portion 28 may include a first support frame portion 28a coupled with the first frame portion 21 and a second support frame portion 28b coupled with the second frame portion 22. have.

The first support frame portion 28a includes a first support frame body portion 28a-1 extending in the longitudinal direction, a first support frame coupling portion 28a-2 coupled with the second support frame portion 28b, and the A third seat portion 28a-3 may be further provided that is fixed to the first support frame body portion 28a-1 to provide an area in which the user's hand can be seated.

One end of the first support frame part 28a may be connected to the first frame body part 21a.

The first support frame part 28a may be connected to the first frame body part 21a to rotate with respect to the first frame body part 21a.

One end of the second support frame portion 28b is coupled to the first support frame coupling portion 28a-2, and the other end of the second support frame portion 28b is coupled to the second frame coupling portion 22b. Can be combined.

When the wheelchair is in use, the first support frame body 28a-1 and the second support frame 28b may form an acute angle.

When the wheelchair is in use, the first frame body portion 21a and the second support frame portion 28b may have an acute angle.

6 is an enlarged view of part A of FIG. 5, FIG. 7 is an upper perspective view of a wheelchair according to an embodiment of the present invention, and FIG. 8 is an enlarged view of part A of FIG. 1.

Here, FIG. 7 is a view in which the second seat portion is omitted.

6 to 8, the third frame part 23 includes a 3-1 frame combining part 23a and the 3-1 frame combining part 21c coupled to the 1-2 frame combining part 21c. It is connected to (23a) and may be provided with a third frame body portion (23b) extending in the longitudinal direction.

The 3-1 frame coupling portion 23a may be coupled by the 1-2 frame coupling portion 21c in the inner surface direction of the 1-2 frame coupling portion 21c.

For this reason, the third frame part 23 may be rotated based on the first frame part 21.

In other words, the third frame body part 23b may be rotated based on the first frame part 21.

One end portion of the 3-1 frame coupling part 23a may be coupled to the 1-2 frame coupling part 21c by a fastening means.

The other end of the 3-1 frame coupling portion 23a may be connected to the third frame body portion 23b.

The third frame body portion 23b may be connected to the 3-1 frame coupling portion 23a to have a predetermined angle from the 3-1 frame coupling portion 23a.

One end of the third frame body part 23b is connected to the 3-1 frame coupling part 23a, and the other end of the third frame body part 23b is connected to the fourth frame part 24 Can be.

The other end of the third frame body 23b may be coupled to the fourth frame part 24 so that the third frame body 23b is rotatable with respect to the fourth frame part 24. have.

When the wheelchair is in a use state, the first frame body portion 21a and the third frame body portion 23b may form an acute angle.

When the wheelchair is in use, the second frame body portion 22a and the third frame body portion 23b may form an acute angle.

When the wheelchair is in a used state, the third frame body 23b may form an acute angle with the ground.

The third frame part 23 may be plural.

As a specific example, one 3-1 frame coupling part 23a may be coupled to one side of the 1-2 frame coupling part 21c, and the other 3-1 frame coupling part 23a ) May be coupled to the second frame body on the other side.

In addition, one third frame body part 23b may be coupled to the fourth frame part 24 on one side, and the other third frame body part 23b is the fourth frame part 24 on the other side. Can be combined with

The third frame part 23 may further include a third frame connection part 23c that connects one 3-1 frame coupling part 23a and the other third frame coupling part to each other.

When the wheelchair is in use, the third frame connection part 23c may be horizontally disposed from the ground.

Due to the third frame connection part 23c, durability of the wheelchair may be improved.

The third frame part 23 may further include a 3-2 frame coupling part 23d fixed to the third frame body part 23b and connected to the fifth frame part 25.

The fourth frame portion 24 is a fourth frame body portion 24a extending in the longitudinal direction and a fourth frame coupling portion fixed to the fourth frame body portion 24a and fastened to the intermediate frame portion 27 ( 24b) may be provided.

The third frame body 23b may be fastened to an inner surface of one end of the fourth frame body 24a.

Accordingly, the third frame body portion 23b may be coupled to the fourth frame coupling portion 24b so as to rotate with respect to the fourth frame portion 24.

In addition, a separation limiting part 50 may be connected to the upper surface of the fourth frame main body 24a.

One end of the fourth frame body 24a may be disposed in the seating area R42, and thus the frame part and the driving module 40 may be coupled to each other.

The second wheel may be disposed on the outer side of the fourth frame body 24a.

The fourth frame body part 24a may be disposed in a direction from the second wheel part to the first wheel part 30.

In other words, the fourth frame body portion 24a may be disposed to extend in the front and rear directions of the wheelchair.

The fourth frame body part 24a may form an acute angle with the third frame body part 23b.

The fourth frame coupling portion 24b may be fixed to an upper surface of the other end of the fourth frame body portion 24a.

The fifth frame portion 25 includes a fifth frame body portion 25a extending in the longitudinal direction and a fifth frame coupling portion 25b coupled to the fifth frame body portion 25a and the connection frame portion 26 It can be provided.

One end of the fifth frame body portion 25a may be coupled to the 3-2 frame coupling portion 23d.

Specifically, one end of the fifth frame body portion 25a may be coupled to the 3-2th frame coupling portion 23d in the inner surface direction of the 3-2th frame coupling portion 23d.

Accordingly, the fifth frame body portion 25a may be coupled to the 3-2 frame coupling portion 23d so as to rotate with respect to the third frame portion 23.

The fifth frame body portion 25a and the third frame body portion 23b may have an acute angle.

The fifth frame coupling portion 25b may be fixed to the other end of the fifth frame body portion 25a.

The connection frame portion 26 may be coupled to the fifth frame coupling portion 25b, the fourth frame body portion 24a, and the first shaft portion 32.

Specifically, the connection frame portion 26 includes a first connection frame portion 26a connected to the fifth frame coupling portion 25b and the first shaft portion 32 and the first connection frame portion 26a. ) And a second connection frame portion 26b connected to the fourth frame body portion 24a.

The first shaft part 32 is connected in a downward direction of the first connection frame part 26a, and the connection frame part 26 is connected by a first wheel 31 connected to the first shaft part 32. Can be supported.

The first connection frame portion 26a may provide a predetermined space therein, and a part of the fifth frame coupling portion 25b is disposed in a predetermined space provided by the first connection frame portion 26a. Can be.

The second connection frame portion 26b includes a second connection frame portion 26b-1 connected to the first connection frame portion 26a and a second connection frame portion 26b-1 connected to the fourth frame body portion 24a. 2 It may be provided with a connection frame (26b-2).

The 2-1 connection frame part 26b-1 may be connected to the outer surface of the first connection frame part 26a.

The 2-2 connection frame part 26b-2 may be connected to the 2-1 connection frame part 26b-1.

When the wheelchair is in use, the 2-1 connection frame portion 26b-1 and the other end of the fourth frame body portion 24a may be in contact.

When the wheelchair is in a storage state, the 2-1 connection frame portion 26b-1 and the other end portion of the fourth frame body portion 24a may be spaced apart from each other.

The intermediate frame portion 27 may be coupled to the fourth frame coupling portion 24b.

As a specific example, the intermediate frame portion 27 may be disposed in the inner surface direction of the fourth frame coupling portion 24b.

The intermediate frame part 27 may be rotated based on the fourth frame coupling part 24b.

The second frame body portion 22a may be disposed above the intermediate frame portion 27.

As a specific example, the second frame coupling portion 22b is fixed to one end of the second frame body 22a, and the intermediate frame portion 27 is fixed to the other end of the second frame body 22a. ) Can be placed.

The intermediate frame portion 27 may support the other end of the second frame body portion 22a.

The intermediate frame portion 27 may be rotated in response to a positional movement of the second frame body portion 22a.

The second frame part 22 is connected to the first frame part 21 so that one end of the second frame part 22 is rotatable with respect to the first frame part 21, and the second frame The other end of the part 22 may be disposed to be seated on the upper side of the intermediate frame part 27.

9 is a view for explaining a process of operating the folding limit unit provided in the wheelchair according to an embodiment of the present invention.

Specifically, FIG. 9(a) shows a case in which the folding limiter is in the first position, and FIG. 9(b) shows a case in which the folding limiter is in the second position.

9, the wheelchair according to an embodiment of the present invention further includes a folding limiting unit 60 for determining whether or not the first frame unit 21 can be rotated based on the second frame unit 22. Can include.

When the folding limiting part 60 is in the first position, the folding limiting part 60 is the first frame part 21 (refer to FIG. 5) with respect to the second frame part 22 (see FIG. 5). It is possible to limit the positional movement of the first frame part 21 to prevent rotation.

When the folding limiting part 60 is in the second position, the folding limiting part 60 rotates the first frame part 21 with respect to the second frame part 22. 21) may not be able to restrict the position movement.

When an external force is applied to the folding limiting part 60, the folding limiting part 60 may be moved from the first position to the second position.

As a specific example, the first frame portion 21 is fixed to the first-first frame coupling portion 21b, and between the first-first frame coupling portion 21b and the second frame coupling portion 22b It may further include a locking protrusion (21d) disposed on.

The folding limiting part 60 is a locking part 61 coupled to the second frame combining part 22b so as to be rotatable with respect to the second frame combining part 22b, and the locking part 61 A folding housing portion 62 providing a predetermined space and a folding elastic portion 63 disposed in a space provided by the folding housing portion 62 to provide an elastic force to the locking portion 61 may be provided.

In addition, the folding limiting part 60 connects the locking part 61 connected to the second frame combining part 22b on one side and the stopping part 61 connected to the second frame combining part 22b on the other side. An external force receiving portion 64 may be further provided.

The locking part 61, the folding housing part 62, and the folding elastic part 63 may be disposed between the 1-1 frame coupling part 21b and the second frame coupling part 22b. .

Referring to FIG. 9(a), when an elastic force is not provided to the folding elastic portion 63, that is, when an external force is not provided to the external force receiving portion 64, the locking portion 61 is locked. It may be in contact with the protrusion 21d.

In this case, the first frame part 21 may not be able to rotate in the first direction.

In other words, when the folding limiting part 60 is in the first position, the locking part 61 may contact the locking protruding part 21d.

This is because the locking protrusion 21d cannot be moved by the locking portion 61, so that the first frame coupling portion and the first frame body 21a may not be rotated.

Referring to FIG. 9(b), when an external force is provided to the external force receiving portion 64, that is, when an elastic force is provided to the folding elastic portion 63, the locking portion 61 is the locking projection ( 21d) and can be separated.

In other words, when the folding limiting part 60 is in the second position, the locking part 61 may be spaced apart from the locking protrusion 21d.

In this case, the first frame part 21 may be rotated in the first direction.

This is because the locking protrusion 21d can be moved by the locking part 61.

10 is a view for explaining a process of folding a wheelchair according to an embodiment of the present invention.

Specifically, FIG. 10(a) shows a case in which the wheelchair is in use, and FIG. 10(b) shows a case in the process of changing the state of the wheelchair from the used state to the storage state, and FIG. 10 (c) shows the case where the wheelchair is in storage.

When the frame portion has a first shape, one surface of the first seat portion 11 and one surface of the second seat portion 12 are spaced apart from each other, and when the frame portion has a second shape, the first seat portion 11 The frame portion may be deformed in shape so that one surface of and one surface of the second seat portion 12 contact each other.

5 to 10, when an external force is provided to the folding limiting part 60 so that the locking protrusion 21d and the locking part 61 are spaced apart, the first frame body part 21a is It may be rotated in the first direction based on a fastening means for coupling the 1-1th frame coupling portion 21b and the second frame coupling portion 22b.

Here, the first direction may mean a direction in which the second wheel is rotated in the direction of the first wheel 31.

As the first frame body part 21a is rotated, the third frame body part 23b is based on the portion where the third frame body part 23b is coupled to the fourth frame body part 24a. It can be rotated in the second direction.

Here, the second direction may mean a direction opposite to the first direction.

As the third frame body part 23b is rotated, the fifth frame body part 25a is formed based on a portion in which the fifth frame body part 25a is coupled to the third frame connection part 23c. Can be rotated in one direction.

Accordingly, the first wheel 31 may be moved in the direction of the second wheel.

In addition, the 2-1 connection frame portion 26b-1 and the other end portion of the fourth frame body portion 24a may be spaced apart from each other.

As the first wheel 31 is moved to the second wheel and the other ends of the 2-1 connection frame part 26b-1 and the fourth frame body part 24a are spaced apart from each other, the connection frame The part 26 may be moved in position while descending in the direction of the ground.

Accordingly, the other end of the fourth frame part 24 may also be moved in position while lowering in the direction of the ground.

Accordingly, the second frame body portion 22a may also be moved in position while descending in the direction of the ground.

When the wheelchair is in use, the frame portion may have a first shape.

When the wheelchair is in a storage state, the frame portion may have a second shape.

11 is an enlarged view of a fifth frame coupling part provided in a wheelchair according to an embodiment of the present invention, and FIG. 12 is an enlarged view of a fifth frame coupling part when the wheelchair according to an embodiment of the present invention is in a storage state It is a drawing.

Referring to FIG. 11, the fifth frame coupling portion 25b is a 5-1 frame coupling portion connected to the fifth frame body portion 25a and the first connection frame portion 26a (refer to FIG. 8). 25b-1), the 5-2th frame coupling part 25b-2 disposed in the inner space provided by the first connection frame part 26a and the 5th connected to the first connection frame part 26a It can be provided with 3 frame coupling part (25b-3).

The 5-1th frame coupling part 25b-1 may be connected to one side of the first connection frame part 26a.

The 5-3 frame coupling part 25b-3 may be connected to the other side of the first connection frame part 26a.

The 5-2th frame coupling part 25b-2 may have a rod shape extending in one direction from the 5-1th frame coupling part 25b-1.

The 5-2th frame coupling portion 25b-2 may be connected to the 5-1th frame coupling portion 25b-1 and the 5-3th frame coupling portion 25b-3.

In the wheelchair according to an embodiment of the present invention, when the frame part has a first shape, the rotational motion of the first shaft part 32 is not limited, and when the frame part has a second shape, the rotation of the first shaft part 32 It may further include a stopper unit 80 for limiting the movement.

The stopper part 80 may be extrapolated to the 5-2th frame coupling part 25b-2.

The stopper part 80 may be rotated together as the fifth frame coupling part 25b is rotated.

The stopper part 80 may be disposed in an internal space provided by the first connection frame part 26a.

The stopper 80 may be formed in a fan shape.

The first shaft part 32 extends to protrude from the upper surface of the first lower shaft part 32a connected to the first wheel 31 and the first lower shaft part 32a, and the first connection frame part 26a It may have a first upper shaft portion (32b) connected to.

The first upper shaft portion 32b may have a stop portion 32b-1 formed by recessing an upper surface of the first upper shaft portion 32b to a predetermined depth.

When the frame part has a first shape, the first shaft part 32 is rotatable with respect to the frame part, and when the frame part has a second shape, the first shaft part 32 may not rotate with respect to the frame part. have.

The stopper part 80 may be rotated when the frame part is transformed from a first shape to a second shape to limit the rotational motion of the first shaft part 32.

Specifically, when the frame portion has a first shape, the stopper portion 80 may not be inserted into the stop portion 32b-1.

When the frame portion is deformed from the first shape to the second shape, one end of the fifth frame body 25a may be lowered.

As one end of the fifth frame body portion 25a is lowered, the fifth frame coupling portion 25b may also be lowered.

As the first wheel 31 is positioned in the direction of the second wheel, the first connection frame part 26a may also be lowered, and the fifth connection frame part 26a is The frame coupling portion 25b may be rotated.

For this reason, when the shape of the frame portion is completely transformed into the second shape, the stopper portion 80 may be inserted into the stop portion 32b-1.

In the above description, two of the frame units may be symmetrically arranged.

For example, one first frame unit may be disposed to be spaced apart from the other frame unit.

The fourth frame part, the fifth frame part, the connection frame part, the intermediate frame part 27, and the support frame part 28 are the same, and detailed descriptions thereof are omitted from the limit of overlapping with the above description. Can be.

3 to 12 based on FIGS. 1 and 2 may illustrate the present invention by omitting any parts for easy description.

In the accompanying drawings, in order to more clearly express the technical idea of the present invention, components not related or inferior to the technical idea of the present invention are briefly expressed or omitted.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention It will be apparent to those skilled in the art, and therefore, such changes or modifications are found to belong to the appended claims.

10: seat portion 20: frame portion
30: first wheel part 40: drive module
50: separation restriction 60: folding restriction
70: medium protrusion 80: stopper

Claims (11)

delete delete delete In a wheelchair in which a person can be moved while a person is seated,
A seat portion providing a predetermined area in which a user can be seated;
A frame portion supporting the seat portion so that the seat portion may be positioned at a predetermined height;
A first wheel part connected to the front or rear of the frame part;
A driving module connected to the frame unit to face the first wheel unit; And
Includes; a separation limiting unit connected to the frame unit and limiting separation of the frame unit from the driving module,
The driving module,
It can be detached from the frame portion,
Provides power to rotate the 2-1 wheel part disposed on one side of the frame part, the 2-2 wheel part disposed on the other side of the frame part, and the 2-1 wheel part and the 2-2 wheel part And a driving frame part connected to the power unit and the 2-1 wheel unit, the 2-2 wheel unit, and the power unit,
An intermediate unit connected to at least one of the power unit and the drive frame unit and having an intermediate body unit providing a seating area, which is a predetermined area in which the frame unit is seated,
The medium body part,
An insertion hole into which the separation limiting part is inserted is formed,
The separation limiting unit,
Limiting separation of the frame portion inserted into the insertion hole and seated in the intermediate portion from the driving module, or
In a state inserted into the insertion hole, it is separated from the insertion hole through positional movement, and the frame portion seated in the intermediate portion cannot be separated from the driving module.
bathchair.
The method of claim 4,
The separation limiting unit,
A limit housing unit connected to the frame unit to provide a predetermined interior space, and a rod unit positioned on the inner space of the limit housing,
The rod part,
It is inserted into the insertion hole to limit separation of the frame part seated in the intermediate part from the driving module, or
It is not restricted from being separated from the drive module by the frame part which is pulled out from the insertion hole and seated in the intermediate part,
Positioned relative to the insertion hole to be inserted into the insertion hole or taken out from the insertion hole,
bathchair.
The method of claim 4,
The intermediate part,
An intermediate body portion providing a seating area, which is a predetermined area in which the frame portion is seated, and a guide portion connected to the intermediate body portion and fixed to the frame portion,
The frame part,
The separation limiting part is separated from the insertion hole and the frame part is moved in position while the guide part is fixed, and the separation limiting part is inserted into the insertion hole to be coupled to the driving module,
bathchair.
The method of claim 6,
Further comprising a; intermediate protrusions protruding in one direction from the frame portion,
The guide part,
In order for the frame part to be fixed to the guide part, a recessed part is formed in which the upper surface of the guide part is recessed so that the intermediate protrusion part is seated,
The depression,
Formed in the guide portion to face the insertion hole based on the seating area,
bathchair.
In a wheelchair in which a person can be moved while a person is seated,
A seat portion including a first seat portion capable of supporting a user's back and a second seat portion capable of seating a user;
A frame portion supporting the seat portion so that the seat portion may be positioned at a predetermined height;
A first wheel part connected to the front or rear of the frame part; And
Includes; a driving module connected to the frame portion so as to face the first wheel portion,
The driving module,
And a 2-1 wheel part disposed on one side of the frame part and a 2-2 wheel part disposed on the other side of the frame part,
It can be detached from the frame portion,
The frame part,
A first frame part to which the first seat part is connected, a second frame part connected to the first frame part so that the second seat part is connected and rotated with respect to the first frame part, based on the first frame part A third frame part connected to the first frame part to be rotated, a fourth frame part connected to the third frame part to be rotated based on the third frame part, and the third frame part to be rotated based on the To be able to rotate based on the fifth frame part connected to the third frame part, the fourth frame part, the connection frame part connected to the fifth frame part and the first wheel part, and the fourth frame part It has an intermediate frame portion connected to the fourth frame portion,
The second frame part,
One end portion of the second frame portion is connected to the first frame portion so as to be rotatable with respect to the first frame portion, and the other end portion of the second frame portion is disposed to be seated on an upper side of the intermediate frame portion,
bathchair.
The method of claim 8,
The frame part,
When the wheelchair is in use, one surface of the first seat and one surface of the second seat are spaced apart from each other, and when the wheelchair is in a storage state, one surface of the first seat and one surface of the second seat are in contact with each other,
Shape deformable,
bathchair.
delete The method of claim 9,
Further comprising; a folding limiting unit determining whether the first frame unit can be rotated based on the second frame unit,
The folding limiting unit,
Connected to the second frame part,
In the case of a first position, which is a position connected to the first frame part, limiting the movement of the position of the first frame part so that the first frame part is not rotated based on the second frame part,
In the case of a second position spaced apart from the first frame part, the movement of the position of the first frame part cannot be restricted so that the first frame part is rotated based on the second frame part,
The position is moved from the first position to the second position when external force is provided,
bathchair.

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