KR102196729B1 - Electromotive wheelchair for stairs - Google Patents

Electromotive wheelchair for stairs Download PDF

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Publication number
KR102196729B1
KR102196729B1 KR1020180070608A KR20180070608A KR102196729B1 KR 102196729 B1 KR102196729 B1 KR 102196729B1 KR 1020180070608 A KR1020180070608 A KR 1020180070608A KR 20180070608 A KR20180070608 A KR 20180070608A KR 102196729 B1 KR102196729 B1 KR 102196729B1
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South Korea
Prior art keywords
gear
wheel
driving
driven
clutch
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KR1020180070608A
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Korean (ko)
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KR20190143087A (en
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용기 김
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박정일
김용기
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/066—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
    • B60B15/263—Traction increasing surface being located axially beside tire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
    • B60B15/266—Traction increasing surface being located radially outside tire circumferential surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
    • B60B19/02—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group convertible, e.g. from road wheel to rail wheel; Wheels specially designed for alternative use on road and rail
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
    • B60Y2200/84—Wheelchairs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)

Abstract

본 발명은 계단식 전동휠체어에 관한 것으로, 평지 주행 시에는 바퀴로 구동하고, 계단 또는 도로 턱 등의 경사 주행 시에는 의자를 수평으로 유지한 채 경사각에 따라 궤도형 바퀴로 구동하도록 한 것이다.
즉, 본 발명은 바퀴 구동장치와; 상기 바퀴 구동장치 상측의 의자 및 의자에서 조작할 수 있는 계단실 전동휠체어 조작장치와; 상기 바퀴 구동장치의 내부에 설치된 DC모터 및 DC모터에 연결되어 구동되는 구동기어와; 구동기어와 기어 연결되는 제1피동기어와; 제1피동기어와 기어 연결되는 제2피동기어와; 제1피동기어와 체인으로 연결되어 바퀴와 클러치로 분리 결합되는 기어와; 제2피동기어와 체인으로 연결되어 궤도형 바퀴와 클러치로 분리 결합되는 기어로 구성하며;
상기 계단식 전동휠체어 조작장치의 조작으로 평지 주행 시에는 궤도형 바퀴와 기어를 연결하는 클러치가 분리되고 바퀴와 기어를 연결하는 클러치가 결합되며, 경사 주행 시에는 바퀴와 기어를 연결하는 클러치가 분리되게 하고 궤도형 바퀴와 기어를 연결하는 클러치가 결합되게 한 것이다.The present invention relates to a stepped electric wheelchair, and is driven by wheels when traveling on a flat ground, and driven by a track wheel according to an angle of inclination while maintaining the chair horizontally when running on an incline such as stairs or road jaws.
That is, the present invention includes a wheel drive device; A stairwell electric wheelchair operating device operable in a chair and a chair above the wheel driving device; A DC motor installed inside the wheel driving device and a driving gear connected to and driven by the DC motor; A first driven gear connected to the drive gear; A second driven gear gear-connected to the first driven gear; A gear connected to the first driven gear through a chain and separated by a wheel and a clutch; A second driven gear and a gear connected by a chain and separated by a tracked wheel and a clutch;
The clutch that connects the track-type wheel and the gear is separated when driving on a level surface by the operation of the stepped electric wheelchair operation device, and the clutch that connects the wheel and the gear is engaged, and when driving in an inclined manner, the clutch connecting the wheel and the gear is separated. And a clutch that connects the orbital wheel and the gear.

Description

계단식 전동휠체어{Electromotive wheelchair for stairs}Electric wheelchair for stairs{Electromotive wheelchair for stairs}

본 발명은 계단식 전동휠체어에 관한 것으로, 보다 상세하게는 평지 주행 시에는 바퀴로 구동하고, 계단 또는 도로 턱 등의 경사 주행 시에는 의자를 수평으로 유지한 채 경사각에 따라 궤도형 바퀴로 구동하는 계단식 전동휠체어에 관한 것이다.The present invention relates to a stepped electric wheelchair, and more specifically, a stepped wheel driven by a wheel when driving on a level ground, and driven by a track wheel according to an inclination angle while maintaining the chair horizontally when driving on an incline such as stairs or road jaws. It relates to an electric wheelchair.

전체 인구 대비 등록 장애인 비율이 5% 가량 되고 전체 장애인 대비 지체 장애인 비율이 50% 가량으로, 두 번째로 높은 비율을 차지하고 있는 청각 및 언어 장애인의 비율보다 압도적으로 높다.The ratio of registered persons with disabilities to the total population is about 5%, and the ratio of persons with physical disabilities to those with disabilities is about 50%, which is overwhelmingly higher than that of the hearing and speech impaired, which accounts for the second highest ratio.

하지만 공공장소에 대한 장애인 편의시설 설치율은 70% 미만이며, 더욱이 공공장소 외에 대한 장애인 편의시설 설치율은 극히 낮음에 따라 지체 장애인의 활동에 제약이 많다.However, the rate of installation of facilities for the disabled in public places is less than 70%, and the rate of installation of facilities for the disabled outside of public places is extremely low, so there are many restrictions on the activities of the disabled.

또한 현재 우리나라는 점점 65세 이상 고령자수가 늘고 있는 추세이며, 곧 고령사회에서 초고령사회가 될 것으로 예상하고 있다.In addition, the number of elderly people aged 65 or older is increasing in Korea, and it is expected to become a super-aged society soon.

장애인과 더불어 증가되고 있는 고령자의 복지를 위한 용품의 필요가 증가하고 있는 추세이다.The need for supplies for the welfare of the elderly who is increasing along with the disabled is increasing.

그리고 지체 장애인 및 고령자용 전동보장구 필요에 대한 소지 비율이 50% 미만을 기록하고 있다.In addition, less than 50% of the people with physical disabilities and the elderly have the need for electric security equipment.

이렇듯 현대사회는 후천성 장애인의 급증 및 고령화 진행과 함께 지체 부자유자의 이동권 문제가 대두되고 있다.As such, with the rapid increase and aging of the acquired handicapped in the modern society, the problem of the right to move for people with disabilities is emerging.

지체 부자유자들이 보도나 육교, 지하철 계단, 비나 눈으로 미끄러운 도로, 비포장도로 어느 곳이든 통행할 수 있는 휠체어가 필요성이 인식된다.
종래 기술로는 대한민국 등록특허공보(B1)10-1750193호(2017.06.22.)의 전동 휠체어, 등록실용신안공보(Y1)20-0293419호(2002.10.31.)의 전동 휠체어 등이 있다.The need for wheelchairs is recognized to allow people with disabilities to travel anywhere on sidewalks, overpasses, subway stairs, slippery roads due to rain or snow, and unpaved roads.
As prior art, there are electric wheelchairs of Korean Patent Registration (B1)10-1750193 (June 22, 2017), electric wheelchairs of Utility Model Registration (Y1)20-0293419 (October 31, 2002).

KR 101750193 B1 2017.06.22.KR 101750193 B1 2017.06.22. KR 200293419 Y1 2002.10.31.KR 200293419 Y1 2002.10.31.

본 발명은 상기 상술한 문제점들을 해결하기 위해 안출된 것으로, 지체부자유자들의 이동권 보장에 기여하고, 안전과 편의를 제공코자 본 발명을 연구 개발한 것이다.The present invention has been conceived to solve the above-described problems, and has researched and developed the present invention to contribute to guaranteeing the right to move for disabled people and to provide safety and convenience.

즉, 본 발명에서는 평지 주행 시에는 바퀴로 구동하고 계단 또는 도로 턱 등의 경사 주행 시에는 의자를 수평으로 유지한 채 경사각에 따라 궤도형 바퀴로 이동할 수 있도록 함으로 해서 지체부자유자들의 이동권 보장과 함께 안전과 편의를 제공할 수 있는 계단식 전동휠체어를 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.In other words, in the present invention, when driving on a flat ground, it is driven with wheels, and when driving in an inclined manner such as stairs or a road chin, the chair is kept horizontal and can be moved by a track type wheel according to the inclination angle, thereby ensuring the right to move for the disabled. In order to provide a stepped electric wheelchair that can provide safety and convenience, the present invention has been completed with the technical problem of the invention.

본 발명에서는 상기와 같은 과제들을 달성하기 위하여 첫째 바퀴 구동장치와; 상기 바퀴 구동장치 상측의 의자 및 의자에서 조작할 수 있는 계단실 전동휠체어 조작장치와; 상기 바퀴 구동장치의 내부에 설치된 DC모터 및 DC모터에 연결되어 구동되는 구동기어와; 구동기어와 기어 연결되는 제1피동기어와; 제1피동기어와 기어 연결되는 제2피동기어와; 제1피동기어와 체인으로 연결되어 바퀴와 클러치로 분리 결합되는 기어와; 제2피동기어와 체인으로 연결되어 궤도형 바퀴와 클러치로 분리 결합되는 기어로 구성하며;
상기 계단식 전동휠체어 조작장치의 조작으로 평지 주행 시에는 궤도형 바퀴와 기어를 연결하는 클러치가 분리되고 바퀴와 기어를 연결하는 클러치가 결합되며, 경사 주행 시에는 바퀴와 기어를 연결하는 클러치가 분리되게 하고 궤도형 바퀴와 기어를 연결하는 클러치가 결합되게 한 것을 특징으로 한다.In the present invention, in order to achieve the above problems, the first wheel drive device; A stairwell electric wheelchair operating device operable in a chair and a chair above the wheel driving device; A DC motor installed inside the wheel driving device and a driving gear connected to and driven by the DC motor; A first driven gear connected to the drive gear; A second driven gear gear-connected to the first driven gear; A gear connected to the first driven gear through a chain and separated by a wheel and a clutch; A second driven gear and a gear connected by a chain and separated by a tracked wheel and a clutch;
The clutch that connects the track-type wheel and the gear is separated when driving on a level surface by the operation of the stepped electric wheelchair operation device, and the clutch that connects the wheel and the gear is engaged, and when driving in an inclined manner, the clutch connecting the wheel and the gear is separated. And it is characterized in that the clutch that connects the tracked wheel and the gear is engaged.

둘째 상기 궤도형 바퀴 내부에서 체인으로 연결된 복수의 기어가 일괄 구동되어 궤도형 바퀴로 경사 주행이 이루어질 수 있도록 한 것을 특징으로 한다.Second, it is characterized in that a plurality of gears connected by chains are collectively driven inside the track-type wheel so that the track-type wheel can be inclined to travel.

셋째 바퀴 구동장치와 궤도형 바퀴를 실린더로 연결하여 계단식 전동휠체어가 평지 주행에서 경사 주행으로 전환될 때 상기 실린더는 주행 경사각도가 중가함에 따라 하강하고 경사 주행에서 평지 주행으로 전환될 때 상기 실린더는 주행 경사각도가 감소함에 따라 승강하여, 주행 경사각에 따라 상기 궤도형 바퀴로 구동할 수 있게 한 것을 특징으로 한다.When the third wheel drive device and the track-type wheel are connected with a cylinder, when the stepped electric wheelchair is switched from flat driving to inclined driving, the cylinder descends as the driving inclination angle increases, and when switching from inclined driving to flat driving, the cylinder is It is characterized in that as the driving inclination angle decreases, the vehicle is elevated and driven by the track type wheel according to the driving inclination angle.

본 발명에 의한 계단식 전동휠체어는 평지 주행 시에는 바퀴로 구동하고 계단 또는 도로 턱 등의 경사 주행 시에는 궤도형 바퀴로 구동하므로 기존의 지체 부자유자에게 제한되어 있던 이동 범위를 넓힐 수 있는 장점이 있다.The stepped electric wheelchair according to the present invention is driven by wheels when driving on a level ground and by track wheels when driving on an incline such as stairs or road chin, so there is an advantage of expanding the range of movement limited to the existing disabled person. .

또한, 계단 또는 도로 턱 등의 경사 주행 시에 상기 계단식 전동휠체어의 의자는 수평으로 유지한 채 주행이 가능하므로 사용자의 안전성과 편의성이 높은 장점이 있다.In addition, there is an advantage of high user safety and convenience because the chair of the stepped electric wheelchair can be driven while maintaining the chair horizontally when driving in an inclined manner such as stairs or a road chin.

도 1은 본 발명의 계단식 전동휠체어의 평지 주행 시의 작동상태도
도 2는 본 발명의 계단식 전동휠체어의 계단 또는 도로 턱 등의 경사 주행 시의 작동상태도
도 3은 본 발명의 계단식 전동휠체어의 분해도
도 4는 본 발명의 계단식 전동휠체어를 아래에서 관찰한 단면도
도 5는 본 발명의 궤도형 바퀴의 구성을 나타낸 단면도1 is an operating state diagram of the stepped electric wheelchair of the present invention when traveling on a flat ground
Figure 2 is an operation state diagram of the stepped electric wheelchair according to the present invention when driving in an inclined manner such as stairs or road jaws
3 is an exploded view of the stepped electric wheelchair of the present invention
4 is a cross-sectional view of the stepped electric wheelchair of the present invention observed from below
Figure 5 is a cross-sectional view showing the configuration of the track-type wheel of the present invention

이하, 첨부된 도면들을 참조하여 본 발명에 의한 계단식 전동휠체어에 대하여 상세히 설명하면 다음과 같다.Hereinafter, a stepped electric wheelchair according to the present invention will be described in detail with reference to the accompanying drawings.

먼저, 계단식 전동휠체어 조작장치(9)로 바퀴 구동장치(1)가 마련되고, 바퀴구동장치(1)의 상부에는 의자가 설치되고, 좌판의 전방으로는 계단식 전동휠체어 조작장치(9)가 마련된다. 좌판의 후방으로는 등받이(8)가 설치되며, 등받이(8)은 의자 조작장치(10)에 의해 제어되게 구성한다. 또한 바퀴구동장치(1)의 전방으로는 의자에 앉은 상태에서 발을 올려 둘 수 있는 발 받침대(7)가 구비된다.
바퀴 구동장치(1)의 내부에는 DC모터(20)가 설치되며, 또한 DC모터(20)에 의해 구동되는 기어군이 구성된다.
바람직하기로는 DC모터(20)와 구동기어(14)가 연결되어 구동하면, 상기 DC모터(20)에 연결된 구동기어(14)에는 제1피동기어(15)를 기어 결합하고, 상기 제1피동기어(15)에는 제2피동기어(16)를 기어 결합하여 DC모터(14)에 의해 일괄 구동되도록 한다. 상기 두 제1,2피동기어(15)(16)는 체인(21)을 결합할 수 있는 구성이 복합적으로 구성하며, 제1,2피동기어(15)(16)에는 체인(21)을 이용하여 2개의 기어와 연결하여 구동되게 한다.
상기 체인(21)으로 연결된 2개의 기어 중 하나의 기어(13)는 바퀴(6)에 연결시키고, 다른 하나의 기어(3)는 궤도형 바퀴(25)에 연결시키며, 기어(13)와 바퀴(6) 및 기어(3)과 궤도형 바퀴(25) 사이에는 각각 클러치를 두어 동력을 분리 결합될 수 있도록 구성하여 평지 주행과, 경사 주행시 동력을 구분하여 제공할 수 있도록 한다. 이때 2개의 클러치는 동시에 조작되는 구성으로 이루어지며, 계단식 전동휠체어 조작장치(9)에 의해 제어되도록 한다.First, a wheel driving device 1 is provided as a stepped electric wheelchair operating device 9, a chair is installed on the top of the wheel driving device 1, and a stepped electric wheelchair operating device 9 is provided in front of the seat plate. do. A backrest (8) is installed at the rear of the seat plate, and the backrest (8) is configured to be controlled by the chair operating device (10). In addition, a foot rest 7 is provided in front of the wheel drive device 1 to put the feet on the chair while seated.
A DC motor 20 is installed inside the wheel driving device 1, and a gear group driven by the DC motor 20 is configured.
Preferably, when the DC motor 20 and the drive gear 14 are connected and driven, the first driven gear 15 is gear-coupled to the drive gear 14 connected to the DC motor 20, and the first driven The second driven gear 16 is gear-coupled to the gear 15 so that it is collectively driven by the DC motor 14. The two first and second driven gears 15 and 16 have a complex configuration that can combine the chain 21, and the first and second driven gears 15 and 16 use a chain 21 So that it is driven by connecting with two gears.
One of the two gears connected by the chain 21 is connected to the wheel 6, and the other gear 3 is connected to the orbital wheel 25, and the gear 13 and the wheel (6) And the gear 3 and the track-type wheel 25 is configured so that the power can be separated and coupled by placing a clutch, respectively, so that the power can be provided by dividing the power when driving on a flat land and when driving on an incline. At this time, the two clutches are configured to be operated at the same time, and are controlled by the stepped electric wheelchair operation device (9).

즉, 평지 주행 시에는 상기 궤도형 바퀴(25)에 연결되는 기어(3)와 상기 궤도형 바퀴(25)로 동력을 전달하는 클러치가 분리되고, 상기 바퀴(6)에 연결되는 기어(13)와 상기 바퀴(6) 사이의 클러치가 연결되어 상기 바퀴(6)에 연결되는 기어(13)에 의해 바퀴(6)가 구동될 수 있도록 구성한다.That is, when driving on a level surface, the gear 3 connected to the track-type wheel 25 and the clutch for transmitting power to the track-type wheel 25 are separated, and the gear 13 connected to the wheel 6 The clutch is connected between the wheel 6 and the wheel 6 is configured to be driven by a gear 13 connected to the wheel 6.

그리고, 경사 주행 시에는 상기 바퀴(6)에 연결되는 기어(13)와 상기 바퀴(6)로 동력을 전달하는 클러치가 분리되고, 상기 궤도형 바퀴(25)에 연결되는 기어(3)와 상기 궤도형 바퀴(25) 사이의 클러치가 연결되어 상기 궤도형 바퀴(25)에 연결되는 기어(3)에 의해 궤도형 바퀴(25)가 구동될 수 있도록 구성한다.In addition, during inclined driving, the gear 13 connected to the wheel 6 and the clutch for transmitting power to the wheel 6 are separated, and the gear 3 connected to the tracked wheel 25 and the A clutch is connected between the track wheels 25 so that the track wheels 25 can be driven by a gear 3 connected to the track wheels 25.

본 발명에 의한 계단식 전동휠체어가 경사 주행 시에 바퀴 구동장치(1) 내부의 궤도형 바퀴(25)에 연결되는 기어(3)가 궤도형 바퀴(25)와 연결되어 구동됨에 따라 상기 궤도형 바퀴(25) 내부에서 체인(22)으로 연결된 모든 기어(17, 18, 19)가 구동되어 궤도형 바퀴(25)로 경사를 주행한다.When the stepped electric wheelchair according to the present invention is driven in an inclined manner, the gear 3 connected to the track type wheel 25 inside the wheel driving device 1 is connected to the track type wheel 25 and is driven. (25) All gears (17, 18, 19) connected by the chain (22) from the inside are driven to drive a slope with the orbital wheel (25).

바퀴 구동장치(1)와 궤도형 바퀴(25)는 실린더(23)로 상호 연결하여 궤도형 바퀴(25)가 기어(3)이 결합된 축을 중심으로 회전각운동할 수 있게 하여 계단식 전동휠체어가 평지 주행에서 경사 주행으로 전환될 때 상기 실린더(23)는 주행 경사각도가 증가함에 따라 하강하고 경사 주행에서 평지 주행으로 전환될 때 상기 실린더(23)는 주행 경사각도가 감소함에 따라 승강하여, 주행 경사각에 따라 상기 궤도형 바퀴(25)로 구동할 수 있다.The wheel drive unit 1 and the tracked wheel 25 are interconnected by a cylinder 23 so that the tracked wheel 25 can rotate around the axis to which the gear 3 is coupled, so that the stepped electric wheelchair When switching from flat land to inclined driving, the cylinder 23 descends as the driving inclination angle increases, and when switching from inclined driving to flat land, the cylinder 23 moves up and down as the driving inclination angle decreases. It can be driven by the track type wheel 25 according to the inclination angle.

1:바퀴 구동장치 3:기어
6:바퀴 7:발 받침대
8:등받이 9:계단식 전동휠체어 조작장치
10:의자 조작장치 13:기어
14:구동기어 15:제1피동기어
16:제2피동기어
17, 18, 19:기어 20:DC모터
21,22:체인23:실린더
25:궤도형 바퀴1: wheel drive 3: gear
6: Wheel 7: Foot rest
8: backrest 9: stepped electric wheelchair control device
10: chair operating device 13: gear
14: drive gear 15: first driven gear
16: second driven gear
17, 18, 19: gear 20: DC motor
21, 22: chain 23: cylinder
25: track wheel

Claims (3)

바퀴 구동장치(2)와;
상기 바퀴 구동장치(2) 상측의 의자 및 의자에서 조작할 수 있는 계단식 전동휠체어 조작장치(9)와;
상기 바퀴 구동장치(2)의 내부에 설치된 DC모터(20) 및 DC모터(20)에 연결되어 구동되는 구동기어(14)와;
구동기어(14)와 기어 연결되는 제1피동기어(15)와;
제1피동기어(15)와 기어 연결되는 제2피동기어(16)와;
제1피동기어(15)와 체인(21)으로 연결되어 바퀴(6)와 클러치로 분리 결합되는 기어(13)와;
제2피동기어(16)와 체인(21)으로 연결되어 궤도형 바퀴(25)와 클러치로 분리 결합되는 기어(3)로 구성하여;
상기 계단식 전동휠체어 조작장치(9)의 조작으로 평지 주행 시에는 궤도형 바퀴(25)와 기어(3)를 연결하는 클러치가 분리되고 바퀴(6)와 기어(13)를 연결하는 클러치가 결합되며, 경사 주행 시에는 바퀴(6)와 기어(13)를 연결하는 클러치가 분리되게 하고 궤도형 바퀴(25)와 기어(3)를 연결하는 클러치가 결합되게 한 것을 특징으로 하는 계단식 전동휠체어.
A wheel drive device 2;
A stepped electric wheelchair operating device (9) that can be operated from the upper chair and the chair of the wheel driving device (2);
A DC motor 20 installed inside the wheel drive device 2 and a driving gear 14 connected to and driven by the DC motor 20;
A first driven gear (15) gear-connected to the drive gear (14);
A second driven gear (16) gear-connected to the first driven gear (15);
A gear 13 connected to the first driven gear 15 and the chain 21 to be separated by a wheel 6 and a clutch;
Consisting of a second driven gear (16) and a chain (21) is connected to the orbital wheel (25) and a gear (3) separated by a clutch;
The clutch connecting the track-type wheel 25 and the gear 3 is separated when driving on a level surface by the operation of the stepped electric wheelchair operating device 9, and the clutch connecting the wheel 6 and the gear 13 is engaged. , Stepped electric wheelchair, characterized in that the clutch connecting the wheel 6 and the gear 13 is separated and the clutch connecting the tracked wheel 25 and the gear 3 is coupled during the inclined driving.
 청구항 1에 있어서;
상기 궤도형 바퀴(25) 내부에서 체인(22)으로 연결된 복수의 기어(17)(18)(19)가 일괄 구동되어 궤도형 바퀴(25)로 경사 주행이 이루어질 수 있도록 한 것을 특징으로 하는 계단식 전동휠체어.
The method according to claim 1;
A stepped type, characterized in that a plurality of gears 17, 18, 19 connected by a chain 22 in the track-type wheel 25 are collectively driven so that the track-type wheel 25 can be driven in an inclined manner. Electric wheelchair.
 청구항 1에 있어서;
바퀴 구동장치(1)와 궤도형 바퀴(25)를 실린더(23)로 연결하여 계단식 전동휠체어가 평지 주행에서 경사 주행으로 전환될 때 상기 실린더(23)는 주행 경사각도가 중가함에 따라 하강하고 경사 주행에서 평지 주행으로 전환될 때 상기 실린더(23)는 주행 경사각도가 감소함에 따라 승강하여, 주행 경사각에 따라 상기 궤도형 바퀴(25)로 구동할 수 있게 한 것을 특징으로 하는 계단식 전동휠체어.The method according to claim 1;
When the wheel drive unit 1 and the tracked wheel 25 are connected with a cylinder 23, when the stepped electric wheelchair is switched from flat driving to inclined driving, the cylinder 23 descends and inclines as the driving inclination angle increases. The stepped electric wheelchair, characterized in that the cylinder (23) lifts and descends as the driving inclination angle decreases when switching from driving to flat-land driving, and is driven by the tracked wheel (25) according to the driving inclination angle.
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KR20220155162A (en) 2021-05-14 2022-11-22 배동권 Electric Wheel using Variable Track Wheel

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KR102511305B1 (en) 2020-12-24 2023-03-20 한국기계연구원 Two-wheel wheel chair for climbing stairs

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KR20220155162A (en) 2021-05-14 2022-11-22 배동권 Electric Wheel using Variable Track Wheel
KR102523201B1 (en) 2021-05-14 2023-04-18 윤영현 Electric Wheel using Variable Track Wheel

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