KR101703953B1

KR101703953B1 - Apparatus for assisting standing-up and seating

Info

Publication number: KR101703953B1
Application number: KR1020150058247A
Authority: KR
Inventors: 김창원; 김정기
Original assignee: 한국기계연구원
Priority date: 2015-04-24
Filing date: 2015-04-24
Publication date: 2017-02-08
Also published as: KR20160126755A

Abstract

In a stand-by and seatable auxiliary device including a conversion unit for performing a conversion between a seating state and a standing state of a user, the conversion unit includes a drive unit, a cylinder portion, a conversion portion and a connection portion. The driving unit includes a motor for generating a driving force, and a driving unit for selectively transferring the generated driving force to transfer the auxiliary device capable of standing up and seating. The cylinder portion converts the stand-by and seat-accessible auxiliary device into a standing state or a sitting state. The drive converting unit selectively receives the driving force generated in the motor unit and transmits the driving force to the cylinder unit. And the connection portion transmits a driving force between the driving conversion portion and the cylinder portion.

Description

[0001] APPARATUS FOR ASSISTING STANDING-UP AND SEATING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an assisting apparatus capable of standing up and seated, and more particularly, to an assisting apparatus capable of assisting a user to stand up from a seated state and allowing a user to selectively perform seating and standing.

In general, a wheelchair having an upright support function is divided into a motorized type and a passive type. In the case of a motorized wheelchair, since the length of the cylinder is controlled by driving the motor, the user can easily sit and stand. .

On the other hand, in the case of a passive wheelchair, a gas cylinder or the like is used to support standing by applying a predetermined force when the user stands up. However, there is an inconvenience that the user must perform sitting by using a magnetic force. Particularly, It can not but cause a big problem.

Korean Patent Application No. 10-2013-0097847 discloses a technique relating to a motor-driven standing-up wheelchair including an arm-up portion that is raised and lowered by a user's operation. Korean Patent Application No. 10-2013-0000672 also discloses a technique for an upright auxiliary wheelchair having a structure in which an upper structure is erected using a link structure and a cylinder.

However, the technologies developed up to now also have the respective problems of the motorized or passive wheelchairs as described above. In particular, since they include a complicated link structure and a cylinder structure, the design is difficult, .

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and a method for operating the apparatus, which can operate with a relatively simple structure, And an auxiliary device capable of seating.

According to an embodiment of the present invention for realizing the above-described object, the assisting apparatus capable of standing and seated includes a conversion unit for performing a conversion between a seating state and a standing state of the user. The conversion unit includes a drive unit, a cylinder portion, a conversion portion, and a connection portion. The driving unit includes a motor for generating a driving force, and a driving unit for selectively transferring the generated driving force to transfer the auxiliary device capable of standing up and seating. The cylinder portion converts the stand-by and seat-accessible auxiliary device into a standing state or a sitting state. The drive converting unit selectively receives the driving force generated in the motor unit and transmits the driving force to the cylinder unit. And the connection portion transmits a driving force between the driving conversion portion and the cylinder portion.

In one embodiment, the drive unit includes a motor shaft gear connected to the motor unit, and a drive shaft gear engaged with the motor shaft gear and selectively connected to the drive unit, the drive converter unit meshing with the motor shaft gear, And a conversion gear selectively connected to the connection portion.

In one embodiment, when the driving shaft gear is connected to the driving unit, the auxiliary device capable of standing up and seating is transferred, and when the conversion gear is connected to the connecting portion, the auxiliary device capable of standing up and seating is in an upright state or a sitting state Can be converted.

In one embodiment, the drive conversion unit includes a first drive conversion shaft connected to the connection unit, a second drive conversion shaft connected to the conversion gear, and a gripper unit for selectively connecting the first and second drive conversion shafts .

In one embodiment, the gripper portion includes an extension portion having one end fixed to the second drive conversion shaft and the other end selectively coupled to the first drive conversion shaft, and the extension portion, Lt; RTI ID = 0.0 > 1 < / RTI > drive conversion axis.

In one embodiment, the gripper portion includes a coupling portion fixed to the other end of the extension portion and covering the outer peripheral surface of the first drive conversion shaft and selectively engaged with the first drive conversion shaft, And a protrusion inserted into the groove formed in the first drive conversion shaft.

In one embodiment, the drive conversion unit is connected to a drive shaft connecting the drive shaft gear and the drive unit, and the drive shaft gear may be selectively connected to the drive unit.

In one embodiment, the motor shaft gear, the drive shaft gear, and the conversion gear may all be bevel gears.

In one embodiment, the connecting portion may include a plurality of connecting units for changing a driving force transmitting direction between the driving converting portion and the cylinder portion, and a connecting wire for transmitting a driving force between the plurality of connecting units have.

In one embodiment, the apparatus may further include a frame portion in which the conversion unit is housed, a standing portion standing by the cylinder portion above the frame portion, and a seating portion positioned above the frame portion and seated by the user.

According to the embodiments of the present invention, the conversion unit of the auxiliary device capable of standing up and sitting can transfer the driving force of the driving unit to the cylinder part according to the user's selection, thereby making it easy to move to the standing or sitting position, There is an advantage that the design is simple, but the manufacturing cost is not increased.

In other words, the driving force generated from one motor unit can be selectively transmitted to the driving unit and the cylinder unit, so that the auxiliary device capable of standing up and seating can be transferred and the standing or sitting driving can be performed.

Particularly, since the driving force is transmitted by the bevel gear, the arrangement of the driving portion and the cylinder portion to which the driving force is provided can be easily designed.

Also, since the drive conversion unit includes the gripper unit that selectively connects the drive conversion shaft by the electromagnet, the control system can be easily designed because it is possible to select the feed drive or the up / down drive by performing only the control of applying the magnetic force to the electromagnet.

Particularly, since the gripper portion is inserted into the groove portion formed on the outer surface of the drive conversion shaft, the projection portion protruding from the inner surface of the engaging portion coupled to the drive conversion shaft is inserted and coupled to improve the engaging force with the drive conversion shaft, .

1 is a perspective view illustrating an auxiliary device capable of standing up and seating according to an embodiment of the present invention.
2 is an exploded perspective view showing the conversion unit of Fig.
FIG. 3 is a plan view showing the driving conversion portion and the connecting portion of FIG. 2 observed from above.
4A and 4B are state diagrams showing operation states of the drive conversion unit of FIG.
Fig. 5 is a perspective view showing the gripper unit of Fig. 2;

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the term "comprises" or "comprising ", etc. is intended to specify that there is a stated feature, figure, step, operation, component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating an auxiliary device capable of standing up and seating according to an embodiment of the present invention.

Referring to FIG. 1, an auxiliary device 1 capable of standing up and seating according to the present embodiment includes a frame unit 10, an auxiliary transfer unit 20, a seating unit 30, an upright unit 40, ).

The frame part 10 includes a base frame 11, a first frame 12 and a second frame 13, the base frame 11 being positioned above the seating part 30, The first frame 12 and the second frame 13 are respectively connected to the front and back of the seating unit 30 to receive the conversion unit 100 and the auxiliary transfer unit 20 therein.

The auxiliary transfer unit 20 transfers the stand-by and seatable auxiliary device 1 together with the conversion unit 100 and includes a transfer unit such as a wheel.

The seating portion 30 is located at an upper portion of the frame portion 10 and includes a saddle portion for the user to sit on.

The rising part 40 is provided on the upper part of the first frame 12 and is connected to the converting unit 100 to be vertically conveyed so as to change the posture in a standing state or a sitting state, In this case, it may include a supporting portion 41 which the user can support.

The conversion unit 100 is housed in the first support frame 12 and is adapted to move the auxiliary device 1 capable of standing up and being seated or to move the upstanding part 40 up and down . In this case, the transfer or vertical movement of the assisting device 1 capable of standing up and sitting can be selectively performed, and a detailed description will be given later.

1 shows an example of an auxiliary device 1 that can stand up and sit on the structure and shape of the frame part 10, the auxiliary transfer part 20, the seating part 30 and the rising part 40, But it is the same that the transfer of the assisting device 1 capable of standing up and sitting by the conversion unit 100 or the up and down movement of the standing part 40 is selectively performed.

2 is an exploded perspective view showing the conversion unit of Fig. FIG. 3 is a plan view showing the driving conversion portion and the connecting portion of FIG. 2 observed from above. 4A and 4B are state diagrams showing operation states of the drive conversion unit of FIG. Fig. 5 is a perspective view showing the gripper unit of Fig. 2;

1 to 5, a conversion unit 100 of an auxiliary device 1 capable of standing up and sitting according to the present embodiment includes a first drive unit 200, a second drive unit 300, a cylinder unit 400, a driving conversion unit 500, and a connection unit 600.

The first drive unit 200 includes a first motor unit 210, a first drive unit 220, a first motor shaft gear 230, and a first drive shaft gear 240.

The first motor shaft 210 is connected to the first motor shaft 211 of the first motor unit 210. The first motor shaft 210 is connected to the first motor shaft gear 230 of the first motor unit 210. In this case, the first motor shaft gear 230 may be a bevel gear.

The first drive shaft 220 is connected to the first drive shaft gear 240 through a first drive shaft 221 and the first drive shaft gear 240 is also connected to the first motor shaft gear 230, Gear-coupled.

In this case, the first driving shaft gear 240 and the first motor shaft gear 230 are vertically coupled to each other as bevel gears, so that the first driving shaft 221 extends in the first direction X The first motor shaft 211 may extend in a third direction Z perpendicular to the first direction.

The second drive unit 300 is arranged symmetrically with respect to the first drive unit 200 and includes a second motor unit 310, a second drive unit 320, a second motor shaft gear 330, And a second drive shaft gear 340.

That is, the second motor unit 310 generates a driving force and transmits the driving force generated by the second motor shaft gear 330 through the second motor shaft 311 connected to the second motor unit 310 do.

The second motor shaft gear 330 is engaged with the second driving shaft gear 340 in a vertical direction to transmit the driving force to the second driving shaft gear 340 via the second driving shaft gear 340, And is transmitted to the second driving unit 320.

When the driving force is generated from the first and second motor units 210 and 310, the first and second motor shaft gears 230 and 330 and the first and second driving shaft gears 240 and 240, The driving force is transmitted to the first and second driving units 220 and 320 through the first and second driving units 340 and 340 and the auxiliary device 1 capable of standing up and seating is transferred.

However, any one of the drive units of the first and second drive units 200 and 300 may selectively provide the drive force transmitted from the motor unit to the drive conversion unit 500 according to a user's selection, Accordingly, the driving force transmitted through the driving conversion unit 500 drives the cylinder unit 400.

2, the driving unit 500 is connected to the first driving unit 200. Hereinafter, the driving unit 500 will be described.

The drive conversion unit 500 includes a gripper unit 510, a conversion gear 520, a first drive conversion shaft 530, and a second drive conversion shaft 540.

The conversion gear 520 meshes with the first motor shaft gear 230 and the first driving shaft gear 240 and is rotatable in a second direction Y which is simultaneously perpendicular to the first and third directions X and Z To the second drive conversion shaft 540 that is extended from the second drive conversion shaft 540.

In this case, the conversion gear 520 is also a bevel gear, and the rotational driving force of the first motor shaft gear 230 is simultaneously transmitted to the first driving shaft gear 240 and the conversion gear 520.

The gripper unit 510 fixes or detaches the first drive conversion shaft 530 and the second drive conversion shaft 540 that are extended in a line in the same direction as the second drive conversion shaft 540 .

That is, when the first and second drive conversion shafts 530 and 540 are fixed to each other by the gripper unit 510, the rotational drive force transmitted to the second drive conversion shaft 540 is transmitted to the first drive / And is transmitted to the shaft 530, whereby the cylinder 400 described later is operated.

In contrast, when the first and second drive conversion shafts 530 and 540 are not fixed to each other by the gripper unit 510, the rotational drive force transmitted to the second drive conversion shaft 540 is transmitted to the first drive / And is not transmitted to the conversion shaft 530, so that the cylinder 400 is not operated.

More specifically, the gripper portion 510 includes an electromagnet 511, an extension portion 512, a coupling portion 513, and a protrusion 514.

One end of the extension 512 is fixed to the second drive conversion shaft 540 and the other end thereof is selectively coupled to the first drive conversion shaft 530. In this case, the extension portion 512 is fixed to the first drive conversion shaft 530 by approaching the portion fixed to the second drive conversion shaft 540 with the rotation axis in the direction of the first drive conversion shaft 530, (See FIG. 4A) or away from the first drive conversion axis 530 (see FIG. 4B).

At this time, the electromagnet 511 provides a coupling force for selectively coupling the extension 512 to the first drive conversion shaft 530. For this, the extension 512 may be made of a magnetic material such as iron (Fe).

That is, when the electric current flows under the control of the electromagnet 511, a magnetic force is generated, and the extension portion 512 is bonded to the electromagnet 511 by the magnetic force generated in the electromagnet 511.

In contrast, when the electromagnet 511 is cut off by the external control, the magnetic force disappears and the extended portion 512 is separated from the electromagnet 511. For this purpose, the extension 512 may be fixed to the second drive conversion shaft 540 through an elastic body (e.g., a spring) having an elastic recovery force. Thus, when the magnetic force disappears, the extension 512 returns to a position where it is separated from the first drive conversion shaft 530 by an elastic recovery force.

The electromagnet 511 may be disposed between the second drive conversion shaft 540 and the first drive conversion shaft 530 and may have a cylindrical shape along the outer circumferential surface of the drive conversion shaft.

The extension 512 is formed in a pair of bar shapes as shown in the figure and is disposed on one side and the opposite side of the first and second drive conversion shafts 530 and 540 Alternatively, it may be a columnar frame structure having an inner opening to cover the first and second drive conversion shafts 530 and 540, though not shown.

The coupling portion 513 is fixed to the other end of the extended portion 512 and may have a cylindrical shape with an inner opening to cover the outer peripheral surface of the first driving conversion shaft 530. In this case, as shown in the drawing, if the extending portion 512 has a pair of bar shapes, the engaging portions 513 are fixed to the ends of the pair of bars, Lt; / RTI >

Thus, when the extension portion 512 is close to the first drive conversion shaft 530, the coupling portion 513 covers the entire outer peripheral surface of the first drive conversion shaft 530, And can be fixed to the shaft 530.

In this case, the protrusion 514 protrudes from the inner surface of the coupling portion 513, and the groove 531 corresponding to the protrusion 514 may be formed on the first drive conversion portion 530. Accordingly, when the engaging portion 513 is fixed to the first driving conversion portion 530, the protrusion 514 is inserted into the groove portion 531, and the engaging portion 513 and the first driving The coupling force between the conversion portions 530 can be improved.

Thus, the loss of the rotational driving force transmitted from the second drive conversion shaft 540 to the first drive conversion shaft 530 is minimized, and the overall structural safety can also be improved.

That is, in this embodiment, when the electric current is applied to the electromagnet 511, the first drive conversion shaft 530 and the second drive conversion shaft 540 are connected to each other by the gripper unit 510, The driving force generated by the first motor unit 210 is transmitted to the first driving conversion shaft 530. When the current applied to the electromagnet 511 is cut off, The second drive conversion shaft 530 is provided only by the second drive conversion shaft 540 so that the first drive conversion shaft 530 does not rotate.

When the first and second drive conversion shafts 530 and 540 are connected to each other by the gripper unit 510 to provide a rotational drive force to the first drive conversion shaft 530, The driving force is provided to the cylinder part 400 by the connecting part 600 connecting the shaft 530 and the cylinder part 400.

In this case, the connection unit 600 can change the transmission direction of the driving force in consideration of the extending direction of the first driving conversion shaft 530 and the extending direction of the cylinder unit 400.

For example, the connection unit 600 includes a first connection unit 610 fixed to an end of the first drive conversion shaft 530 and rotated in the second direction Y about a rotation axis, A third connecting unit 630 positioned below the cylinder 400 and rotating in the first direction X about a rotation axis and a third connecting unit 630 located between the first and third connecting units 610 and 630, And the second connection unit 620 that rotates in the third direction Z on the rotation axis, and the first to third connection units 610, 620, and 630 may be all pulleys.

The connection unit 600 is rotated by the first to third connection units 610, 620, and 630 to rotate the first driving conversion shaft 530 to the cylinder unit 400 (Not shown).

Thus, the cylinder 400 rotates the rotational driving force about the second direction of the first driving conversion shaft 530 in a reciprocating feed force in the third direction Z, that is, Conversion will be provided.

Thus, the rising part 40 fixed to the cylinder part 400 can be reciprocated in the vertical direction, that is, in the third direction, and can be moved back and forth in the standing state or in the seating state Can be performed.

That is, in the present embodiment, a driving force, which is normally provided for movement of a wheel chair, is selectively used for driving force of the cylinder portion for changing the posture to the standing state or the seating state, So that it is possible to omit a complicated link structure for driving the cylinder portion or an additional design for a separate driving portion.

Meanwhile, in the present embodiment, when the first and second drive conversion shafts 530 and 540 are coupled to each other by the gripper unit 510, the driving force generated by the first motor unit 210 is transmitted to the 1 drive shaft 221 and the first drive conversion shaft 530 at the same time.

That is, the standing part 40 is moved to the standing state or the seating state while the auxiliary device 1 capable of standing up and being seated is moved in a predetermined direction. However, if the user is a patient who needs rehabilitation, an elderly person or a disabled person, it may be dangerous for the assistive device 1 capable of standing and seating to move to the stand-up or seated state at the same time while being transferred.

In this embodiment, although not shown, a drive conversion unit having the same structure as the drive conversion unit 500, particularly, a gripper unit is provided between the first drive shaft gear 240 and the first drive shaft 221 at the same time . Thus, the rotational driving force of the first driving shaft gear 240 can be selectively transmitted to the first driving unit 220 by the user's selection.

In this case, the structure and drive mechanism of the drive conversion unit, particularly the gripper unit, provided between the first drive shaft gear 240 and the first drive shaft 221 are the same as those described above. For this, the first drive shaft 221 may also include two shafts separated from each other.

That is, when the user needs to change the attitude to the seating state or the standing state, the user applies a current to the electromagnet 511 of the drive conversion unit 500 to rotate the rotation of the conversion gear 520 400, and at the same time, the electromagnets provided on the first driving shaft 221 cut off the current so that the rotational driving force transmitted to the first driving shaft gear 240 is not transmitted to the first driving unit 220 Can be controlled.

On the other hand, when the user wishes to move the auxiliary device capable of standing and seating, the user cuts off the current of the electromagnet 511 of the drive converting part 500, The rotation driving force transmitted to the first driving shaft gear 240 is transmitted to the first driving unit 220 by applying a current to the electromagnets provided on the first driving shaft 221, .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. It can be understood that it is possible.

Standing and seated assistive devices in accordance with the present invention have industrial applicability that can be used in wheelchairs, transport assisting vehicles / devices, or rehabilitation assistant vehicles / devices, and the like.

1: Auxiliary device capable of standing and seating
100: conversion unit 200: first drive unit
300: second driving unit 400: cylinder part
500: drive conversion unit 510: gripper unit
511: Electromagnet 512: Extension
513: engaging portion 514:
520: conversion gear 530: first drive conversion shaft
540: second drive conversion shaft 600: connection portion
610: first connecting unit 620: second connecting unit
630: third connecting unit 640: connecting wire

Claims

In a stand-by and seated auxiliary device including a conversion unit for performing a conversion between a seating state and a standing state of a user,
A driving unit for driving the motor unit generating the driving force and the auxiliary device capable of standing up and seating by selectively receiving the generated driving force;
A cylinder part for converting the stand-by and seated auxiliary devices into an upright state or a seated state;
A drive converting unit selectively transmitting the driving force generated by the motor unit to transmit the driving force to the cylinder unit; And
And a connecting portion for transmitting a driving force between the driving conversion portion and the cylinder portion.

The method according to claim 1,
The driving unit includes:
A motor shaft gear connected to the motor unit; And
And a drive shaft gear engaged with the motor shaft gear and selectively connected to the drive unit,
And the drive conversion unit includes a conversion gear that engages with the motor shaft gear and is selectively connected to the connection unit.

3. The method of claim 2,
Wherein the auxiliary device capable of standing up and seating is transferred when the drive shaft gear is connected to the driving portion and the auxiliary device capable of standing up and seating is converted into a standing state or a seating state when the conversion gear is connected to the connection portion Which is capable of standing up and seating.

The driving apparatus according to claim 3,
A first drive conversion shaft connected to the connection portion;
A second drive conversion shaft connected to the conversion gear; And
And a gripper portion for selectively connecting the first and second drive conversion shafts.

[5] The apparatus of claim 4,
An extension having one end fixed to the second drive conversion shaft and the other end selectively coupled to the first drive conversion shaft; And
And an electromagnet which couples or removes the extension to the first drive conversion shaft in response to application of an electric force.

[6] The apparatus of claim 5,
A coupling portion fixed to the other end of the extension portion and covering the outer peripheral surface of the first drive conversion shaft and selectively engaged with the first drive conversion shaft; And
And a protrusion protruding from an inner surface of the coupling portion and inserted into a groove formed in the first drive conversion shaft.

The method of claim 3,
Wherein the drive conversion unit is connected to the drive shaft gear, and the drive shaft gear is connected to the drive unit through a drive shaft.

3. The method of claim 2,
Wherein the motor shaft gear, the drive shaft gear, and the conversion gear are all bevel gears.

The connector according to claim 1,
A plurality of connection units for changing a driving force transmission direction between the drive conversion unit and the cylinder unit; And
And a connecting wire for transmitting a driving force between the plurality of connecting units.

The method according to claim 1,
A frame unit in which the conversion unit is housed;
An upstanding portion that is raised by the cylinder portion to an upper portion of the frame portion; And
Further comprising: a seating portion located above the frame portion and in which the user is seated.