WO2016024715A1

WO2016024715A1 - Driving assistance apparatus for wheelchair

Info

Publication number: WO2016024715A1
Application number: PCT/KR2015/006537
Authority: WO
Inventors: 고철웅; 홍재수; 최현석
Original assignee: 한국생산기술연구원
Priority date: 2014-08-12
Filing date: 2015-06-26
Publication date: 2016-02-18
Also published as: CN107072857A; CN107072857B

Abstract

Disclosed is a driving assistance apparatus for a wheelchair, comprising: a mounting frame installed on a frame of a manual wheelchair, which has front and rear wheels, along the width direction of the wheelchair; a main frame that supports the entirety; a stem frame inserted into the main frame so as to be rotatable, wherein a steering handle is formed on one side of the stem frame, and a driving wheel that is driven by a separate drive motor is coupled to an opposite side of the stem frame; a connecting frame that is formed to be long and is connected, at one side thereof, to the main frame, and has a coupling part on an opposite side thereof, which is coupled to the mounting frame; and a guide unit that is provided on the connecting frame such that the length of a part thereof can be adjusted, wherein the guide unit is coupled, at one side thereof, to the mounting frame such that the length thereof is optionally reduced, and guides the coupling part such that the coupling part approaches the mounting frame without separation.

Description

Wheelchair Assist

The present invention relates to a driving assistance device for a wheelchair, and more specifically, to a removable wheelchair having a separate mounting frame is configured to be easily removable with the driving aid, the driving aid can be coupled to the mounting frame self-accessible. The present invention relates to a wheelchair assistance device.

Wheelchairs generally used include manual wheelchairs and electric wheelchairs.

When moving a long distance or a hill, such as a manual wheelchair can be a great burden to the user, in particular, most of the user of the wheelchair has a problem in that it is practically impossible to move long distance or hill road.

Electric wheelchairs have been developed according to this, and electric wheelchairs are equipped with a large number of parts such as a built-in battery and a separate driving motor.

In addition, it is difficult for most of the users of general wheelchairs to purchase expensive electric wheelchairs because of their insufficient living conditions.

In order to solve such a problem, a driving assistance apparatus for installing a separate driving assistance apparatus for a manual wheelchair has been developed.

Looking at the driving assistance device developed in the prior art is simply configured to selectively combine the driving aid with a drive motor and a separate mounting means installed on the wheelchair.

Here, in the case of the conventional driving aids can not be easily removed according to the user's convenience, the frame is formed so as to surround the outside of the user's leg in the seated state of the wheelchair, so that the user's quick response is difficult when the wheelchair is overturned There was a problem that falls can occur.

In addition, when the driving aid and the wheelchair are combined, the user must apply the external force directly, but in the case of a user who is inconvenient, there is no difficulty in combining the driving aid and the wheelchair because there is no muscle power to directly combine the driving aid and the wheelchair. there was.

As well as. When the driving aid and the wheelchair are combined, the front wheel of the wheelchair causing the interference of the driving must be lifted, which must be performed by the user directly, which is a great burden for the user who is not free.

It is urgent to develop a driving assistance device for wheelchairs to solve such problems.

The technical problem of the present invention is to solve the problems mentioned in the background art, by installing a separate mounting frame on a manual wheelchair, the user can stably detach the driving aid and the wheelchair without any external force in the state in the wheelchair In addition, the present invention provides a wheelchair assistance device for preventing interference from occurring when the front wheel is lifted.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

Wheel assistance device for a wheelchair according to an aspect of the present invention devised to solve the above technical problem, the mounting frame is installed in the frame of the manual wheelchair having a front wheel and a rear wheel long along the width direction of the wheelchair, the whole support The main frame, which is rotatably inserted into the main frame, the steering wheel is formed on one side, the stem frame is coupled to the driving wheel driven by a separate drive motor, the other side is formed long and one side on the main frame It is connected to, and the other side is provided with a connecting frame having a coupling portion coupled to the mounting frame and the length on the connection frame is partly adjustable, one side is coupled to the mounting frame to selectively reduce the length and the coupling is the mounting It includes a guide unit for guiding access without leaving the frame .

The driving wheel may be rotated by the driving motor such that the coupling unit is coupled to the mounting frame in a state where the guide unit is coupled to the mounting frame.

In addition, the guide unit is provided on the other side of the connecting frame and is selectively rotated rotational pulley, long and one side is connected to the rotational pulley, the guide wire is adjusted to the length of the winding or unwinding according to the rotation of the rotary pulley and It is provided on the other side of the guide wire may include a engaging member coupled to the mounting frame.

In addition, the rotational pulley may further include an elastic member for restoring force acting in the direction of winding the guide wire when a separate external force does not act to bring the coupling portion and the mounting frame into close proximity.

In addition, the guide unit may further include a rotating motor connected to the rotary pulley on the connection frame to drive and selectively wind the guide wire so that the coupling part and the mounting frame are in close proximity.

In addition, the mounting frame may be characterized in that the engaging groove is formed so that the locking member is inserted by the user is caught.

In addition, the mounting frame may be provided with a mounting portion coupled to the coupling portion in the central portion along the longitudinal direction, the connection frame may be located between the user's legs in a state where the user is seated in the wheelchair.

In addition, the coupling portion, at least a portion is provided with a coupling protrusion formed to protrude rearward in the longitudinal direction of the body portion, the mounting portion may be characterized in that the mounting groove is formed is inserted into the coupling projection.

In addition, the plurality of coupling protrusions may be arranged spaced apart in the vertical direction or left and right, and the mounting groove, characterized in that configured to be inserted corresponding to the coupling protrusion on the mounting frame.

In addition, the coupling protrusion is formed with a first communication hole is communicated in the vertical direction, the mounting groove is formed with a second communication hole in communication with the first communication hole in the state in which the coupling projection is inserted, The coupling part and the mounting part may be maintained in a coupled state by a separate coupling holding member inserted through the first communication hole and the second communication hole continuously.

In addition, the connecting frame is formed long and one side is coupled to the main frame and the other side of the body portion is coupled to the tilting in the vertical direction and coupled to the mounting frame, the coupling portion, optionally the coupling portion The tilting may be adjusted to lift the front wheel of the wheelchair.

In addition, the connection frame may be characterized in that it further comprises a separate tilting control portion provided on the body portion to selectively adjust the tilting angle of the coupling portion.

In addition, the tilting adjustment portion is formed to extend in the longitudinal direction of the body portion is configured to be stretchable, one side is fixedly coupled to the body portion, the other side is coupled to be rotatable to the coupling portion, the coupling portion according to the stretching It may be characterized by adjusting the tilting state.

In addition, the tilting control unit may be disposed on the upper side or the lower side of the body portion may be characterized in that the tilting the coupling in the vertical direction.

In addition, the mounting frame may be configured to be replaceable so as to correspond to the width of the wheelchair, the length thereof.

In addition, the main frame is formed with a slit elongated along the vertical direction, the connecting frame is provided with a separate protruding member on one side is coupled to the slit, the connecting frame is optionally in the vertical direction along the longitudinal direction of the slit The position according to may be adjusted.

In addition, the slit is formed to be curved, it may be characterized in that the coupling angle is also adjusted together with the coupling position of the connection frame and the main frame.

In addition, the left and right of the main frame is formed extending in the lower direction may further comprise an auxiliary frame provided with an auxiliary wheel at the end.

In addition, the auxiliary frame may be configured to be rotatable with the main frame to selectively control the contact of the auxiliary wheel with the floor.

In addition, the driving wheel may be characterized by a built-in separate drive motor for providing a driving force therein.

According to the traveling assistance device for a wheelchair according to the present invention has the following effects.

First, the mounting frame installed on the frame of the wheelchair and the connecting frame of the driving aid is selectively detachable by a separate coupling part, and the driving aid and the wheelchair are coupled by the connecting frame and the mounting frame in a rotational restraint state. There is an advantage that can be easily removable by the user's convenience.

Secondly, a separate guide unit is provided on the connecting frame and is selectively connected to the mounting frame so that the connecting frame can be stably accessed without being separated when the connecting frame and the mounting frame are combined. By accessing, there is an advantage that the user can combine the driving aid and the wheelchair without applying an additional external force.

Third, the coupling part is configured to be tiltable at the end of the connecting frame connecting the wheelchair and the driving aid, and by selectively tilting by the user in a state in which the mounting frame and the coupling part are coupled, the front wheel of the wheelchair is lifted to the front wheel when driving. There is an advantage that the interference does not occur.

Fourth, the connection frame is located between the user's leg in the state of coupling of the driving aid and the wheelchair, there is an advantage that can reduce the occurrence of injuries during upset.

Such effects by the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view schematically showing a configuration of a driving assistance device and a manual wheelchair coupled thereto according to the present invention;

2 is a view schematically showing the configuration of the driving assistance apparatus of FIG. 1;

3 is a side view of the driving assistance apparatus of FIG. 1;

4 is a view showing the configuration of the coupling portion and the guide unit in the connecting frame of FIG.

5 is a view showing a state in which the mounting frame is coupled to the wheelchair in the driving aid of FIG.

FIG. 6 is a view illustrating a process in which a connection frame and a mounting frame are coupled by a guide unit in the driving assistance apparatus of FIG. 1;

FIG. 7 is a view illustrating a state in which the coupling part and the mounting part are fixed by the coupling holding member in the driving assistance apparatus of FIG. 6;

8 is a view illustrating a state in which the coupling unit tilts in the driving assistance apparatus of FIG. 7;

9 is a view showing a state in which the length and height of the connection frame is adjusted in the driving aid of FIG.

10 is a view showing a modified form of the mounting frame in the driving aid of Figure 1;

11 is a view showing a state in which the main body and the coupling member separated in the mounting frame of FIG.

12 is a view showing another modified form of the mounting frame in the driving assistance apparatus of FIG. And

FIG. 13 is a view illustrating a state in which a main body and a coupling member are separated from the mounting frame of FIG. 12.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

In addition, in describing the present invention, the front? Rear or top? Terms indicating the direction as described below are to be described to those skilled in the art to clearly understand the present invention, and to indicate a relative direction, it will be said that the scope of rights is not limited by this.

First, referring to FIGS. 1 to 3, a schematic configuration of a driving assistance apparatus according to the present invention will be described.

1 is a view schematically showing a configuration of a driving assistance device and a manual wheelchair coupled thereto according to the present invention, FIG. 2 is a view schematically showing a rear configuration of the driving aid of FIG. 1, and FIG. 3 is of FIG. 1. The figure which shows the side of a traveling assistance apparatus.

The driving assistance apparatus according to the present invention is a device capable of selectively attaching and detaching to a general manual wheelchair 10 having a front wheel and a rear wheel to assist driving according to a user's convenience, and the frame 12 of the manual wheelchair 10. By installing a separate mounting frame 100 in the connection frame 400 and the mounting frame 100 is configured to be selectively coupled.

The driving assistance apparatus according to the present invention includes a mounting frame 100, a main frame 200, a stem frame 300, a connecting frame 400, and a guide unit 600.

Mounting frame 100 has a length corresponding to the width direction of the wheelchair 10, both ends are coupled to the frame 12 provided in the wheelchair 10 along the width direction of the wheelchair (10). .

And the mounting frame 100 is provided with a separate mounting portion 110 in the central portion along the longitudinal direction is selectively coupled to the connecting frame 400 and the guide unit 600 to be described later.

In the present embodiment, the mounting frame 100 is fixedly coupled to the frame 12 provided in the lower portion of the wheelchair 10 as shown, and the mounting groove 112 (see Fig. 5) is formed in the center along the longitudinal direction. The mounting portion 110 is provided.

Specifically, the mounting portion 110 according to the embodiment of the present invention is formed with the mounting groove 112 in the front and rear direction to cross the longitudinal direction of the mounting frame 100, a plurality of dogs are arranged in parallel in the vertical direction.

In the present embodiment, the mounting portion 110 includes a pair of mounting grooves 112 spaced apart from each other in the vertical direction from the center along the longitudinal direction of the mounting frame 100, the coupling formed in the connection frame 400 to be described later The unit 420 is coupled to the mounting groove 112 to constrain the free rotation state of the connection frame 400 and the mounting frame 100 and maintain the constraint coupling.

A detailed coupling form of the coupling unit 420 and the mounting unit 110 will be described later with reference to FIG. 6.

On the other hand, the mounting frame 100 is formed in the above-described mounting portion 110, as well as the mounting groove 112, a separate locking groove 118 (see Fig. 5) is coupled to the upper guide unit 600 is formed.

Specifically, the locking groove 118 is formed to be opened to the upper portion of the guide unit 600 to be described later selectively configured.

That is, the mounting portion 110 is provided in the center along the longitudinal direction of the mounting frame 100 and the mounting groove 112 formed in the front and rear direction is formed, and together with the locking groove 118 on the upper portion of the mounting groove 112 Is formed. Unlike this, of course, the locking groove 118 may be formed on the side of the mounting groove 112 instead of the top.

In this way, the mounting frame 100 is disposed long in the width direction of the wheelchair 10 so that both ends are installed in the frame 12 of the wheelchair 10, the connection frame 400 to be described later can be selectively coupled.

Here, the mounting frame 100 can be replaced so that the length corresponding to the width of the wheelchair 10, or may be configured to selectively adjust the length.

On the other hand, the main frame 200 is configured to support the whole in the driving aid according to the present invention, the stem frame 300 and the connection frame 400 to be described later is fixedly coupled.

In the present embodiment, as shown in the main frame 200, a part of the stem frame 300 is inserted and fixed, and the connection frame 400 supports the whole by supporting it so as to protrude rearward.

And as shown, the battery 210 for providing a driving force to the driving wheel 320 to be described later is disposed in front of the main frame 200, so that the battery 210 and the main frame 200 can be selectively separated It is composed.

That is, the main frame 200 is coupled to the stem frame 300 and the connection frame 400 to maintain a coupled state, it is configured to accommodate the battery 210 together.

In this case, the battery 210 is located in the center portion of the left and right width direction of the main frame 200 is configured so that the center of gravity is located on the center line without deflecting to the left and right.

On the other hand, the stem frame 300 is formed long, a part is fixed to be rotatable with the main frame 200, the steering wheel 310 is formed on one side and the driving wheel 320 is coupled to the other side.

The stem frame 300 is formed in a cylindrical shape similar to a frame of a general bicycle, and has a steering wheel 310 formed to be long to grip the user on one side.

The steering wheel 310 may be formed in a shape similar to that of a general bicycle, and a brake (not shown) may be provided to control driving and stopping of the driving wheel 320 by a user's manipulation.

In addition, the stem frame 300 may be configured to adjust the position of the steering wheel 310 in the longitudinal direction, or the steering wheel 310 may be configured to be tilted forward and backward with the stem frame 300, accordingly The steering wheel 310 may be adjusted to be positioned at a user desired position.

Accordingly, the stem frame 300 may be selectively rotated by the user's steering handle 310 manipulation.

And the other end of the stem frame 300 may be provided with the above-described driving wheel 320, in the present embodiment, as shown, the driving wheel 320 in the transverse direction at the other end of the stem frame 300 Is coupled to have a rotary shaft, there is provided a drive motor (not shown) for driving the front and rear driving wheel 320 receives power from the battery 210 inside.

Here, the drive motor may be embedded in the wheel of the driving wheel 320 as shown, and is configured to be selectively driven and stopped by receiving power from the battery 210 described above. Of course, the drive motor may be provided separately from the outside of the driving wheel 320, as shown.

As the driving motor is provided in the driving wheel 320, the center of gravity is located at the bottom, and thus the stability of the driving assistance device may be increased.

In addition, as described above, when the battery 210 provided on the main frame 200 is located above the driving wheel 320 as shown in the drawing, the driving force of the driving wheel 320 and the ground increases, so that driving force is lost. Can be minimized.

The stem frame 300 is configured as described above, and the user may adjust the driving direction of the driving wheel 320 by grip by rotating the steering wheel 310.

On the other hand, the connecting frame 400 is coupled to protrude rearward from the main frame 200 and is configured to be selectively coupled with the other side mounting frame 100.

Specifically, the length is formed long one side is coupled to the main body 200, the body portion 410 and the other side of the body portion 410 to be tilted in the vertical direction and coupled to the mounting frame 100 a part It includes a portion 420, optionally the tilting of the coupling portion 420 is adjusted.

Here, the body portion 410 has a general frame shape and is formed long and one end portion is coupled to the main frame 200, and the other end portion is formed with a coupling portion 420 selectively coupled with the mounting portion 110 described above. .

In this embodiment, the body portion 410 is configured to adjust the coupling position with the main frame 200 as shown, and optionally the coupling angle with the main frame 200 may be adjusted.

The coupling part 420 is provided to be tiltable at the other end of the body part 410 described above, and is provided with a coupling protrusion 422 protruding backward. And the coupling portion 420 is selectively adjusted by the user the tilting angle with the body portion 410.

In detail, the coupling part 420 is provided with a coupling protrusion 422 that can be inserted into and fixed to the mounting groove 112 described above, and is configured to selectively maintain a coupling state with the mounting groove 112.

Here, the coupling protrusion 422 is configured to be inserted corresponding to the shape of the mounting groove 112 described above, it is configured to correspond to the number and arrangement of the mounting groove 112.

In the present embodiment, the coupling protrusion 422 is configured to be spaced apart in the vertical direction so as to be inserted into the mounting groove 112 to correspond to the mounting groove 112.

As such, as the pair of coupling protrusions 422 are fixed while being inserted into the mounting groove 112, the connection frame 400 and the mounting frame 100 may be stably fixed. Through the connection frame 400 and the mounting frame 100 is constrained so as not to rotate in a combined state.

That is, the connection frame 400 and the mounting frame 100 is rotationally restrained as the coupling portion 420 and the mounting portion 110 are two-point coupling, accordingly the connection frame 400 and the manual wheelchair 10 Can stably maintain the bonding state.

With this. The coupling part 420 is configured to be tiltable on the end of the body part 410 such that the crossing angle of the coupling protrusion 422 and the body part 410 changes according to the tilting of the coupling part 420. . That is, the coupling protrusion 422 is also tilted along with the tilting of the coupling portion 420 and the protrusion angle is changed.

In the present embodiment, the coupling part 420 is configured to be tilted with the body part 410 by being partially coupled to be tiltable in the up and down direction at the other end of the body part 410.

As described above, the connection frame 400 according to the present invention includes the above-described body part 410 and the coupling part 420, and the coupling part 420 and the mounting part 110 are selectively coupled to the connection frame 400. Mounting frame 100 may be coupled to each other.

On the other hand, the connection frame 400 according to the present invention may further include a separate tilting control unit 430 for adjusting the tilting of the above-described coupling portion 420.

Tilting control unit 430 is provided on the body portion 410 to adjust the tilting angle of the coupling portion 420, the user can manually operate, or can be automatically adjusted using an actuator or electric motor, and the like. .

In the present embodiment, the tilting adjusting part 430 is formed to extend and extend along the longitudinal direction of the body part 410 in the form of an actuator, one side of which is fixedly coupled to the body part 410, and the other side of the coupling part. Is coupled to the rotatable 420, and adjusts the tilting state of the coupling portion 420 according to the stretch.

At this time, the tilting control unit 430 is disposed on the upper or lower side of the body portion 410 may be configured to tilt the coupling portion 420 in the vertical direction, in this embodiment the body portion 410 as shown It is provided on the lower side of the coupling is rotatably coupled to the lower direction of the coupling portion 420.

Accordingly, the coupling portion 420 is coupled to the upper end to the other end of the body portion 410 to be tiltable, the lower portion is coupled to be tiltable to the other side of the tilting control unit 430, of the tilting control unit 430 The tilt angle is adjusted up and down according to the stretch.

On the other hand, as the connection frame 400 is configured in this way, since the mounting portion 110 is located in the center portion in the longitudinal direction of the mounting frame 100, when the coupling portion 420 and the mounting portion 110 is coupled to the connection frame 400 is located between the legs of the user in a state where the user is seated in the wheelchair (10).

Accordingly, since the connection frame 400 is located between the legs of the user, the user can easily respond quickly when the wheelchair 10 is overturned, thereby minimizing the injuries caused by the overturning of the wheelchair 10. .

As described above, the driving assistance apparatus according to the present invention has a mounting frame 100 installed on the manual wheelchair 10 and a connection frame 400 connected to the main frame 200 to be selectively detachable. Accordingly, the driving of the wheelchair 10 may be assisted.

For example, if the user wants to move by the magnetic force while sitting in the manual wheelchair 10 by separating the above-described connection frame 400 and the mounting frame 100, the mounting frame 100 in the lower portion of the wheelchair 10 Only in a coupled state, the user can move the wheelchair 10 by himself.

However, if the user wants to move the wheelchair 10 by moving the driving wheel 320, by coupling the connecting frame 400 and the mounting frame 100 while the user is sitting on the wheelchair 10, the driving wheel The driving force of the 320 may assist the driving of the wheelchair 10, and the user may adjust the driving direction through the manipulation of the steering wheel 310.

As described above, the driving assistance apparatus according to the present invention can stably assist the driving of the wheelchair 10 by selectively coupling the user to the wheelchair 10.

On the other hand, the guide unit 600 is provided on the connecting frame 400 is configured to be partly adjustable in length and one side is coupled to the mounting frame 100 is selectively reduced in length and the coupling portion 420 is mounted frame ( 100) to ensure a stable approach.

In detail, the guide unit 600 is partially coupled to the mounting frame 100 by a user before the coupling frame 400 and the mounting frame 100 are coupled, and thus the length of the guide unit 600 is reduced. Accordingly, the coupling part 420 and the mounting part 110 can be stably coupled.

At this time, the guide unit 600 is a guide so as not to be separated from each other so that the coupling protrusion 422 can be inserted into the mounting groove 112 according to mutual access when the coupling portion 420 and the mounting portion 110 is coupled. do.

In this embodiment, the guide unit 600 is largely rotatable on the connecting frame 400, the rotation pulley 610, the other side of the guide wire 620 and the guide wire 620 connected on the rotary pulley 610. It includes a locking member 630 provided in.

Rotating pulley 610 is formed in the form of a general pulley is configured to adjust the length by winding or unwinding the guide wire 620 on the connection frame 400. In this embodiment, the rotary pulley 610 has a horizontal axis of rotation as shown in the rotatable body portion 410 is provided. Alternatively, the coupling part 420 may be provided.

And the guide wire 620 is formed long so that one side is connected to the rotary pulley 610 is configured to selectively adjust its length in accordance with the rotation state of the rotary pulley 610.

Here, the guide wire 620 may be composed of a flexible material, alternatively, may be configured in the form of a steel wire.

On the other hand, the locking member 630 is provided on the other side of the guide wire 620 and is selectively fixed to the mounting frame 110 by the user.

Specifically, as shown, the locking member 630 is formed in the L-shape is provided on the other side of the guide wire 620 may be inserted into the locking groove 118 described above.

Thus, the guide unit 600 according to the present invention is configured, when the user is coupled to the mounting frame 100 and the connecting frame 400, first engaging the locking member 630 to the locking groove 118 and then connecting frame Approach 400 to the mounting frame 100 inserts the engaging projection 422 into the mounting groove (112).

Accordingly, when the coupling part 420 and the mounting part 110 are coupled, the guide unit 600 is guided so as not to be separated from each other so that the coupling protrusion 422 can be stably inserted into the mounting groove 112. do.

Here, although not shown, the above-described driving wheel 320 is driven by the driving motor such that the coupling part 420 approaches the mounting part 110 in a state where the guide unit 600 is coupled to the mounting frame 100. Driven.

That is, after the user connects the guide unit 600 to the mounting frame 100, the driving wheel 320 rotates backward so that the connecting frame 400 approaches the mounting frame 100, and at the same time, the guide unit 600 By guiding the position of the coupling portion 420, the coupling protrusion 422 can be inserted into the mounting groove 112.

On the other hand, the driving assistance apparatus according to the present invention may further include an auxiliary frame 500 which is formed to extend to the lower left of the main frame 200 and is provided with a separate auxiliary wheel 510 at the lower end.

In detail, the auxiliary frame 500 is configured to support the driving assistance device so that the mounting frame 100 and the connection frame 400 are separated from each other. The auxiliary frame 500 runs in a three-point support form on the floor together with the driving wheel 320. Allow the assistive device to stand up.

In the present embodiment, as shown, the auxiliary frame 500 is symmetrically disposed to the left and right of the main frame 200 and is disposed downward. And by the auxiliary wheel 510 and the running wheel 320 provided in the stem frame 300 is provided to the lower end is configured to facilitate the movement of the driving aid.

In addition, the auxiliary frame 500 is configured to be selectively rotated with the main frame 200, so that the user can rotate so that the driving aid is not hindered in driving in the state coupled with the wheelchair (10).

Subsequently, a detailed configuration of the coupling unit 420 and the mounting unit 110 described above with reference to FIGS. 4 and 5 will be described.

4 is a view showing the configuration of the coupling unit 420 and the guide unit 600 in the connecting frame 400 of Figure 1, Figure 5 is a mounting frame 100 in the driving aid of Figure 1 wheelchair 10 Figure is a view showing a state coupled to.

First, referring to FIG. 4, the configuration of the coupling unit 420 and the guide unit 600 is described. The guide unit 600 has the rotary pulley 610, the guide wire 620, and the locking member 630 as described above. It includes.

Specifically, the rotary pulley 610 is configured to be rotatable at the other end of the body portion 410 as shown to selectively wind the above-described guide wire 620 to adjust the length.

Here, although not shown in the drawing, the rotation pulley 610 is a restoring force acts in the direction of winding the guide wire 620 when a separate external force does not act so that the coupling portion 420 and the mounting frame 100 are close to each other. It may include an elastic member (not shown).

Accordingly, when the user does not pull the guide wire 620, the rotary pulley 610 is rotated by the restoring force and winding the guide wire 620.

That is, when a separate external force does not act on the guide wire 620, the guide wire 620 is always wound on the rotary pulley 610, the length is reduced.

Accordingly, when the user couples the locking member 630 to the locking groove 118 formed in the mounting frame 100 by applying an external force, as described above, the driving wheel when the coupling frame 400 and the mounting frame 100 are coupled to each other. Simultaneously with the driving of the 320, the length of the guide wire 620 may be reduced.

On the contrary, when the connecting frame 400 and the mounting frame 100 are coupled to each other, the driving wheel 320 is not driven and the connecting frame 400 is self-accessible toward the mounting frame 100 by the restoring force of the elastic member. It may be configured to.

On the other hand, the guide wire 620 may be formed of a wire in the form of a general steel wire and is made of a material of strength capable of supporting the load of the manual wheelchair 10 and the driving aid.

Guide wire 620 configured as described above is one side is connected to the rotary pulley 610 is selectively wound and its length is adjusted.

And the locking member 630 provided at the other end of the guide wire 620 is inserted into the locking groove 118 shown in Figure 5 so that the guide wire 620 and the mounting frame 100 can be selectively connected. .

In this embodiment, the locking member 630 is formed in the L-shape as described above and the locking groove 118 is formed in the shape of a groove opened in the upper direction, so that the locking member 630 is stable inside the locking groove 118. It is configured to be seated.

Here, the locking member 630 and the locking groove 118 may be formed in a different form, unlike that shown, and the user selectively unintentionally detached by connecting the locking member 630 to the mounting frame 100. Any form that can be prevented can be applied.

The guide unit 600 configured as described above allows the user to guide the coupling protrusion 422 to be stably inserted without being separated from the mounting groove 112 when the coupling part 420 and the mounting part 110 are coupled. Together, the coupling portion 422 may be coupled to the mounting portion 112 by the driving of the driving wheel 320 without the user's external force.

On the other hand, the coupling portion 420, as described above, the connection frame 400 includes a body portion 410, coupling portion 420 and the tilting adjustment unit 430.

Specifically, the body portion 410 is formed long and protruding from the rear of the main frame 200, the coupling portion 420 is coupled to the other end portion to be tiltable. At this time, the coupling portion 420 is coupled to the body portion 410 and the rotational axis in the transverse direction so as to be able to tilt in the vertical direction.

In addition, the tilting adjusting part 430 is rotatably coupled with the coupling part 420 at the bottom of the body 410 to adjust the tilting angle of the coupling part 420.

For example, as shown, when the length of the tilting control unit 430 increases, the coupling unit 420 rotates counterclockwise, and when the length of the tilting control unit 430 decreases, the coupling unit 420 is clockwise. Direction of rotation.

On the other hand, the coupling portion 420 is formed with a pair of coupling protrusions 422 protruding rearward from the other end of the body portion 410, the coupling protrusions 422 are spaced apart in the vertical direction.

The coupling protrusion 422 formed in the coupling part 420 is inserted into the mounting groove 112 of the mounting part 110 shown in FIG. 5.

At this time, the mounting groove 112 is configured in a pair corresponding to the coupling protrusion 422 and is disposed in the vertical direction so that the coupling protrusion 422 can be inserted stably.

Accordingly, the coupling part 420 and the mounting part 110 are stably coupled, and the tilting angle of the coupling part 420 is adjusted by the tilting control part 430 in a state in which the coupling part 420 and the mounting part 110 are coupled to each other. Adjusted.

As such, when the tilting angle of the coupling part 420 is adjusted by the tilting control part 430 while the mounting part 110 and the coupling part 420 are coupled, the front of the wheelchair 10 is lifted up and the front wheel 14 Lifting) can be stably coupled to the wheelchair 10 and the driving assistance device.

On the other hand, the above-described coupling portion 420 and the mounting portion 110 can be maintained in a coupled state through various methods, in this embodiment the coupling projection 422 through a separate coupling holding member 116 (see Fig. 7) The mounting groove 112 is configured to maintain the inserted state.

Specifically, the coupling protrusion 422 according to the present invention has a first communication hole 422a is formed in communication in the vertical direction, the mounting groove 112 in the state in which the coupling protrusion 422 is inserted into the first communication hole ( A second communication hole 114 communicating with the position of 422a is formed.

In addition, the coupling part 420 and the mounting part 110 are inserted into the coupling holding member 116 through the first communication hole 422a and the second communication hole 114 continuously, so that the coupling protrusion 422 is mounted. (112) It is possible to maintain the coupling state inserted therein.

When the coupling part 420 and the mounting part 110 are later separated, the coupling protrusion 422 may be separated out of the mounting groove 112 by removing the coupling holding member 116 described above.

As such, the coupling part 420 and the mounting part 110 according to the present invention may selectively maintain a coupling state through a separate coupling holding member 116.

At this time, the coupling holding member 116 is preferably formed in a shaft shape so as to penetrate through the first communication hole 422a and the second communication hole 114.

In the present embodiment, the first communication hole 422a and the second communication hole 114 are both formed in each of the pair of coupling protrusions 422 and the mounting groove 112, as shown in FIG. It can be configured to penetrate continuously through).

Of course, unlike this, the first communication hole 422a and the second communication hole 114 may be formed in one coupling protrusion 422 and the mounting groove 112, respectively.

As the coupling part 420 and the mounting part 110 are configured as described above, the connection press 400 and the mounting frame 100 may be selectively fixed, and the front wheel 14 of the wheelchair may be lifted by a user's manipulation. Can be.

As the coupling part 420, the guide unit 600, and the mounting part 110 according to the present invention are configured as described above, the user can easily connect the guide wire 620 to the mounting part 110 by simply connecting the frame 400. At the same time to combine the mounting frame 100 and the front wheel 14 of the wheelchair to be lifted.

As such, the driving assistance apparatus according to the present invention is configured so that the driving wheel 320 is approached stably without being separated when the connecting frame 400 and the mounting frame 100 are coupled by the guide unit 600. By driving the connection frame 400 to approach the mounting frame 100, there is an advantage that the user can be combined without applying an additional external force when the driving aid and the wheelchair is coupled.

In addition, the coupling part 420 is configured to be tiltable at the end of the connection frame 400 for connecting the wheelchair and the driving assistance device is selected by the user in a state in which the mounting frame 100 and the coupling part 420 is coupled By tilting to, there is an advantage that the interference by the front wheels 14 during driving by lifting the front wheels 14 of the wheelchair.

Subsequently, referring to FIGS. 6 to 8, the process of coupling the connection frame 400 and the mounting frame 100 will be described in more detail.

FIG. 6 is a view illustrating a process in which the connecting frame 400 and the mounting frame 100 are coupled by the guide unit 600 in the driving assistance apparatus of FIG. 1, and FIG. 7 is a coupling part in the driving assistance apparatus of FIG. 6. 420 and the mounting portion 110 is a view showing a fixed state by the coupling holding member 116, Figure 8 is a view showing a state in which the coupling portion 420 in the driving aid of FIG.

First, referring to Figure 6, the mounting frame 100 is installed in the frame 12 of the manual wheelchair 10, the user grips the steering wheel 310 to adjust the position of the main frame 200, the coupling portion The 420 is disposed adjacent to the mounting unit 110 at the bottom of the wheelchair 10.

At this time, the coupling portion 420 is preferably in a tilted state in the upper direction on the body portion 410, so that the arrangement of the coupling protrusion 422 and the mounting groove 112 is arranged in parallel to each other.

Accordingly, the coupling protrusion 422 and the mounting groove 112 are disposed in parallel, so that the user easily grips the steering wheel 310 to pull the driving assistance device so that the coupling protrusion 422 is easily inserted into the mounting groove 112. Can be inserted.

On the other hand, the locking member 630 is coupled to the locking groove 118 formed in the mounting portion 110 in a state where the length of the guide wire 620 is increased. In this case, the user may directly grip the locking member 630 to be inserted into the locking groove 118.

As the guide wire 620 is extended in this manner, the locking member 630 is inserted into the locking groove 118, and then the driving wheel 320 is driven backward so that the connecting frame 400 approaches the mounting frame 100. Coupling protrusion 422 is inserted into the mounting groove (112).

Here, as the connection frame 400 approaches the mounting frame 100, the rotary pulley 610 is rotated by the restoring force of the elastic member to wind the guide wire 620.

On the other hand, instead of driving the driving wheel 320 may be configured to approach the mounting frame 100 to the connecting frame 400 only by the elastic force of the elastic member.

In addition, although not shown in the drawings, the guide unit 600 may further include a rotating motor (not shown) connected to the rotating pulley 610 on the connection frame 400 and selectively rotating the rotating pulley 610. Can be.

As the rotation motor is further provided in the guide unit 600 as described above, the rotation pulley 610 may wind the guide wire 620 not by the restoring force of the elastic member but by the rotation force of the rotation motor.

Here, when the rotary motor is further provided in the guide unit 600, even if the driving wheel 320 is not driven, the rotary motor rotates so that the connection frame 400 is wound only by the winding of the guide wire 620. Access to the mounting frame 100 may be configured such that the coupling protrusion 422 can be inserted into the mounting groove (112).

Subsequently, as shown in FIG. 7, the coupling protrusion 422 formed on the coupling part 420 is inserted into the mounting groove 112 by being pulled by the user. At this time, the user may perform such a process in a state sitting on the wheelchair (10).

Here, the coupling protrusion 422 is disposed so as to be parallel to the direction of the mounting groove 112 as described above, the user can be easily inserted, the user in the state in which the coupling protrusion 422 is inserted into the mounting groove 112. The coupling protrusion 422 is fixed so as not to be separated from the mounting groove 112 by using the coupling holding member 116.

As shown in detail, the coupling protrusion 422 has a first communication hole 422a communicating in the vertical direction, and the coupling protrusion 422 is inserted into the mounting groove 112 in the mounting groove 112. In the second communication hole 114 is provided in communication in the vertical direction corresponding to the position of the first communication hole (422a), according to the user, the coupling holding member 116 is the first communication hole (422a) and the second The communication hole 114 is fixed to continuously pass through.

As described above, the coupling holding member 116 continuously penetrates through the first communication hole 422a and the second communication hole 114 while the coupling protrusion 422 is inserted into the mounting groove 112. 420 and the mounting portion 110 can stably maintain the rotational binding state.

At this time, the above-described guide wire 620 is a state in which only the locking member 630 is inserted into the locking groove 118 in a state of being wound on the rotary pulley 610.

Then, as shown in FIG. 8, the length of the tilting adjusting part 430 is reduced in a state in which the coupling part 420 and the mounting part 110 are coupled, so that the coupling part 420 is rotatably coupled to the body part 410. It is rotated clockwise with the rotated part as the rotation axis.

The body 410 rotates counterclockwise, on the contrary, so that the front part of the wheelchair 10 and the rear part of the driving assistance device are lifted upward.

That is, when the length of the tilting adjusting part 430 is reduced in the state in which the coupling part 420 and the mounting part 110 are coupled, the body parts 410 and the coupling part 420 are coupled to each other in opposite directions. As the front part of the wheelchair 10 is lifted up, the front wheel 14 provided in the wheelchair 10 is lifted so as not to interfere with the driving of the driving aid.

Next, referring to FIG. 9, the shapes of the main frame 200 and the coupling configuration of the main frame 200 and the connection frame 400 are as follows.

9 is a view showing a state in which the length and height of the connection frame 400 is adjusted in the driving aid of FIG.

The main frame 200 has a slit 220 is formed long along the vertical direction, the connection frame 400 is provided with a separate protruding member 402 on one side is coupled to the slit 220.

And one end of the connecting frame 400 can be adjusted in the vertical position as shown along the slit 220, according to the user's body or the size of the manual wheelchair 10 is connected to the user's frame ( 400) can be adjusted.

As such, the main frame 200 and the connection frame 400 are configured so that the user can adjust the height of the connection frame 400 appropriately according to the height of the wheelchair 10. Accordingly, the connection frame 400 and the mounting frame ( 100) can be stably combined.

In this case, as shown, the slit 220 may be formed to be curved. Accordingly, the position of the protruding member 402 is adjusted along the slit 220, whereby the coupling angle of the main frame 200 and the connecting frame 400 is adjusted. May be adjusted.

That is, as the protruding member 402 moves along the slit 220, the coupling angle of the main frame 200 and the connecting frame 400 may be adjusted as well as the vertical position of the connecting frame 400.

On the other hand, the connection frame 400 according to the present invention may be configured to be variable in length.

Specifically, although not shown in the drawings, the body portion 410 is configured to be slidable along the longitudinal direction of the plurality of members and is configured to selectively secure the sliding state through a separate means, so that the user's body You can adjust the size of the drive assistance to suit your needs.

In particular, by adjusting the length of the connection frame 400 in consideration of the distance to the steering wheel 310 in the user's wheelchair 10, it is possible to use the driving aid according to the user's convenience.

As such, the mainframe 200 and the connection frame 400 are formed. According to the physical condition of the user and the size of the wheelchair 10, the size of the driving assistance apparatus may be selectively adjusted.

In addition, the stem frame 300 according to the present invention is disposed long in the vertical direction is inserted through the main frame 200 is rotatably coupled, the length is adjusted along the longitudinal direction, or of the steering wheel 310 By being configured to adjust the coupling angle forward and backward, the user may be configured to easily adjust the position and angle of the steering wheel 310 according to convenience.

Next, the modified forms of the mounting frame 100 in the driving assistance apparatus according to the present invention will be described with reference to FIGS. 10 to 13 as follows.

FIG. 10 is a view illustrating a modified form of the mounting frame 100 in the driving assistance apparatus of FIG. 1, and FIG. 11 is a state in which the main body 120 and the coupling member 130 are separated from the mounting frame 100 of FIG. 10. The figure which shows.

And Figure 12 is a view showing another modified form of the mounting frame 100 in the driving aid of Figure 1, Figure 13 is a main body 120 and the coupling member 130 in the mounting frame 100 of FIG. It is a figure which shows the separated state.

First, referring to FIGS. 10 and 11, the mounting frame 100 includes a main body 120 and a coupling member 130 together with the mounting unit 110.

Specifically, the coupling member 130 is installed symmetrically on the left and right in the transverse direction on the frame 12 of the wheelchair 10 and are disposed to face each other.

In the present embodiment, the coupling member 130 is fixedly coupled to both sides along the width direction of the wheelchair 10 as shown, and a coupling hole 134 recessed downward is formed.

Specifically, the coupler 134 is formed in a rectangular shape and is opened downward, and a part of the main body 120 is inserted into the coupler 134.

On the other hand, the main body 120 is formed long and the mounting portion 110 is formed in the center portion, it is configured so that both ends can be inserted into the above-described coupling hole 134.

In detail, the main body 120 is formed in a quadrangular shape so that both ends thereof correspond to the shape of the coupler 134, and both ends thereof are coupled to be inserted into the respective coupler 134 in the downward direction.

In addition, the main body 120 is provided with a separate fixing member 122 that is coupled to the coupling member 130 so that both ends are not separated in a state inserted into the coupling hole 134.

Specifically, the fixing member 122 is formed in the form of a screw is inserted into a separate hole formed in the coupling hole 134 is configured to be fixed to the main body 120 and the coupling member 130.

Accordingly, the coupling member 130 and the main body 120 may be selectively fixed in a state in which both ends of the main body 120 are inserted into the coupling hole 134 through the fixing member 122.

At this time, both ends of the main body 120 is formed to have a square shape corresponding to the shape of the coupling sphere 134 described above, so that the main body 120 is free to rotate even if the main body 120 and the coupling member 130 are coupled. It is possible to keep the bonding state stably without doing so.

The mounting frame 100 configured as described above may easily detach the main body 120 on the wheelchair 10 as illustrated in FIG. 11.

As the mounting frame 100 is configured as described above, a part of the mounting frame 100 can be easily separated from the wheelchair 10 to facilitate folding of the wheelchair 10 according to the user's convenience.

Subsequently, referring to another modified form of the mounting frame 100 according to the present invention, the basic configuration is similar as shown in FIG. 12, but the shapes of the coupling member 130 and the main body 120 are different.

Specifically, the coupling member 130 is installed symmetrically on the left and right along the transverse direction on the frame 12 of the wheelchair 10, each of which is formed to protrude in a direction facing each other.

In the present embodiment, the coupling member 130 has a cylindrical shape as shown, and is provided with a stepped portion 132 in which at least a portion of the circumference is recessed relatively smaller than the periphery in the protruding direction.

And the main body 120 is formed long and is provided with a mounting portion 110 in the center along the longitudinal direction, and is provided with fixing means 124 selectively fixedly coupled to the coupling member 130 at each end. As shown here, the fixing means 124 is formed in the form of a snatch lock, and surrounds at least a part of the step 132 formed in the coupling member 130 and fixes the coupling member 130 so as not to be separated.

As the main body 120 is configured as described above, the fixing member 124 is selectively detachably coupled to the coupling member 130.

Accordingly, the mounting frame 100 according to the present invention includes a main body 120 and a coupling member 130 as described above, and at least a part of the mounting frame 100 may be selectively detachable from the wheelchair 10 according to the user's convenience. The wheelchair 10 is configured to be easily folded.

As such, the driving assistance apparatus according to the present invention is constrained to be selectively detachably attached to the mounting frame 100 mounted on the lower portion of the wheelchair 10 and the connecting frame 400 protruding rearward from the main frame 200. By being combined in a state, the user can easily adjust the detachment of the wheelchair 10 and the driving aid.

Although specific embodiments of the present invention have been described and illustrated as described above, the present invention is not limited to the described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention. It is obvious to those of ordinary skill. Therefore, such modifications or variations are not to be understood individually from the technical spirit or point of view of the present invention, the modified embodiments will belong to the claims of the present invention.

(Explanation of the sign)

10: wheelchair 100: mounting frame

110: mounting portion 112: mounting groove

114: second communication hole 116: coupling holding member

118: locking groove 120: main body

130: coupling member 200: mainframe

210: battery 220: slit

300: stem frame 310: steering wheel

320: driving wheel 400: connecting frame

420: body portion 410: coupling portion

422: engaging projection 422a: first communication hole

430: tilting control unit 500: auxiliary frame

600: guide unit 610: rotary pulley

620: guide wire 630: locking member

Claims

A mounting frame installed in a frame of a manual wheelchair having a front wheel and a rear wheel long along the width direction of the wheelchair;

A mainframe supporting the whole;

A stem frame rotatably inserted into the main frame, having a steering wheel formed at one side thereof, and a driving wheel coupled to the other side driven by a separate driving motor;

A connecting frame having a coupling part formed to be long and connected to the main frame at one side and coupled to the mounting frame at the other side; And

A guide unit is provided on the connection frame to be partially adjustable in length, one side is coupled to the mounting frame to selectively reduce the length, and guide the coupling unit to approach the mounting frame without being separated;

Wheel drive assistance device comprising a.
The method of claim 1,

The driving wheel,

Wheel assistance device for a wheelchair, characterized in that the rotating by the drive motor to be coupled to the coupling unit in close proximity to the mounting frame while the guide unit is coupled to the mounting frame.
The method of claim 1,

The guide unit,

A rotary pulley provided on the other side of the connection frame and selectively rotating;

A guide wire having a length formed and connected to one side of the rotary pulley and wound or unrolled according to the rotation of the rotary pulley and having a length adjusted; And

A catching member provided on the other side of the guide wire and coupled to the mounting frame;

Wheelchair assistance device comprising a.
The method of claim 3,

The rotary pulley,

Wheel restraint device further comprises an elastic member to act as a restoring force in the direction of winding the guide wire when a separate external force does not act to bring the coupling portion and the mounting frame in close proximity.
The method of claim 3,

The guide unit,

And a rotary motor connected to the rotary pulley on the connection frame and selectively winding the guide wire so that the coupling part and the mounting frame are in close proximity.
The method of claim 3,

The mounting frame,

Wheel assistance device for a wheelchair, characterized in that the locking groove is formed to be inserted by the engaging member by the user.
The method of claim 1,

The mounting frame,

And a mounting portion coupled to the coupling portion at a central portion along a longitudinal direction, wherein the connection frame is positioned between the user's legs while the user is seated on the wheelchair.
The method of claim 7, wherein

The coupling portion is provided with a coupling protrusion at least partially protruded rearward along the longitudinal direction of the body portion,

The mounting portion is a wheelchair assisting device characterized in that the mounting groove is formed is inserted into the engaging projection.
The method of claim 8,

The coupling protrusion is composed of a plurality of spaced apart in the vertical direction or left and right,

The mounting groove is a driving assistance device for a wheelchair, characterized in that configured to be inserted corresponding to the engaging projection on the mounting frame.
The method of claim 8,

The coupling protrusion may have a first communication hole communicating in a vertical direction, and the mounting groove may have a second communication hole communicating with the first communication hole in a state where the coupling protrusion is inserted.

The coupling part and the mounting part is a driving assistance device for a wheelchair, characterized in that the coupling state is maintained by a separate coupling holding member which is inserted through the first communication hole and the second communication hole continuously.
The method of claim 1,

The connecting frame,

A body part formed to be long and connected to one side of the main frame; And

It is coupled to the tilting in the vertical direction on the other side of the body portion and includes a coupling portion coupled to the mounting frame,

Optionally, the tilting of the coupling unit is adjusted, the driving assistance device for a wheelchair, characterized in that the front wheel of the wheelchair is lifted.
The method of claim 11,

The connecting frame,

Wheel assistance device provided for the body portion further comprises a separate tilting control unit for selectively adjusting the tilting angle of the coupling portion.
The method of claim 12,

The tilting control unit,

It is formed to extend in the longitudinal direction of the body portion is configured to be stretchable, one side is fixedly coupled to the body portion, the other side is coupled to be rotatable to the coupling portion, to adjust the tilting state of the coupling portion according to the stretching Wheelchair assistance device characterized in that.
The method of claim 13,

The tilting control unit,

It is disposed on the upper side or the lower side of the body portion driving assistance device for a wheelchair, characterized in that for tilting in the vertical direction.
The method of claim 1,

The mounting frame,

In response to the width of the wheelchair, the traveling assistance device for a wheelchair, characterized in that the length is configured to be replaced.
The method of claim 1,

The main frame has a slit formed long along the vertical direction,

The connection frame is provided with a separate protruding member on one side is coupled to the slit,

The connecting frame is a wheelchair assisting device, characterized in that the position in the vertical direction along the longitudinal direction of the slit is selectively adjusted.
The method of claim 16,

The slit is,

Is formed to be curved, the driving assistance device for a wheelchair, characterized in that the coupling angle is also adjusted together with the coupling position of the connection frame and the main frame.
The method of claim 1,

Wheel assistance device for a wheelchair, characterized in that the left side of the main frame is formed extending in the lower direction further comprises an auxiliary frame provided with an auxiliary wheel at the end.
The method of claim 18,

The auxiliary frame,

Is configured to be rotatable with the mainframe Wheel assistance device for a wheelchair, characterized in that to selectively control the contact of the auxiliary wheel with the floor.
The method of claim 1,

The driving wheel,

Wheelchair assistance device characterized in that a built-in separate drive motor to provide a driving force inside.