[go: up one dir, main page]

WO2018161443A1 - Fauteuil roulant électrique - Google Patents

Fauteuil roulant électrique Download PDF

Info

Publication number
WO2018161443A1
WO2018161443A1 PCT/CN2017/086242 CN2017086242W WO2018161443A1 WO 2018161443 A1 WO2018161443 A1 WO 2018161443A1 CN 2017086242 W CN2017086242 W CN 2017086242W WO 2018161443 A1 WO2018161443 A1 WO 2018161443A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
adjustment mechanism
gravity
backrest
pushing rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/086242
Other languages
English (en)
Inventor
Chuanfeng YIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2018161443A1 publication Critical patent/WO2018161443A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/046—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type at least three driven wheels
    • 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
    • A61G5/063—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 eccentrically mounted wheels
    • 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
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/1002—Parts, details or accessories with toilet facilities
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
    • 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
    • A61G5/10—Parts, details or accessories
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • A61G5/127—Rests specially adapted therefor, e.g. for the head or the feet for lower legs
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/14—Joysticks

Definitions

  • the present invention relates to a wheelchair, particularly to an electric wheelchair.
  • the present invention aims at providing an electric wheelchair which may be driven at a flat road and a slope, also go up and down stairs, and go straightly up and down without a reverse.
  • the electric wheelchair comprising a chasing, a walking mechanism (rubber tracks, suspension, driving wheels, driven wheels and shock absorber) , a seat (cushion, backrest, pedal, handrails, headrest, closet seat pad, urinal, backrest pushing rod and foot pad pushing rod) , a seat level adjustment mechanism (semi-circular gear, driving gear and a gear bracket) , a seat gravity-center adjustment mechanism (cylindrical linear guiderails and ball screw) , a power system (drive motor, a seat level adjustment mechanism motor and a seat weight-center adjustment mechanism motor) , a power supply (battery pack) and an electrical control system (a walking controller and a seat controller) .
  • a walking mechanism rubber tracks, suspension, driving wheels, driven wheels and shock absorber
  • a seat cushion, backrest
  • the chasing is a frame-shape and bears all components; the walking mechanism comprising the rubber tracks, the suspension, the driving wheels, the driven wheels and the shock absorber, At Left and right side symmetrically were equipped with two sets of rubber track each , each set of the rubber tracks are provided with one driving wheel and a plurality of the driven wheels, the driving wheels of two sets of the rubber tracks at each side are linked by a chain, one of driving wheels is driven by the motor, the suspension of each set of the rubber tracks takes an axis of the driving wheel as an axis thereof, and is connected with the chasing via the axis and the shock absorber, to form four independent suspended walking mechanisms.
  • the seat including the cushion, the backrest, the pedal, the handrails, the headrest, the closet seat pad, the urinal, the backrest pushing rod and the foot pad pushing rod, the closet seat pad is positioned behind the cushion and may be drawn out, the urinal rightly under the closet seat pad and matched with the closet seat pad may also be drawn out, the closet seat pad and the urinal are used for a user to answer a call of nature, the backrest and the foot pad may be erected or laid down via the backrest pushing rod and the foot pad pushing rod.
  • the seat level adjustment mechanism including semi-circular gear, driving gear and gear bracket, two semi-circular gears form an n-shape and are mounted at the bottom of the seat, the gear bracket forms a U-shape and is mounted on the sliding block of the cylindrical linear guide rails of the seat gravity-center adjustment mechanism, -the driving gear is mounted on the upper portion of the gear bracket and links the semi-circular gear to rotate the seat so as to adjust to the level.
  • the seat gravity-center adjustment mechanism including cylindrical linear guide rail and ball screw, two cylindrical linear guide rails are mounted on the chasing, the ball screw is mounted at the middle of the two cylindrical linear guide rails, a screw nut and slide blocks of the cylindrical linear guide rails are mounted at the bottom of the gear bracket.
  • the power system including two drive motors at the left and the right sides, one for seat level adjustment mechanism motor and the other one for the seat weight-center adjustment mechanism motor.
  • the power supply is the battery pack.
  • the electric control system including a walking controller and a seat controller, the walking controller mainly controls the operation of auxiliary equipment such as driving motors or an indicator light and so on, the seat controller mainly controls seat level adjustment mechanism motor, seat gravity-center adjustment mechanism motor, backrest pushing rod and foot pad pushing rod, to carry out the adjustment of the level of the seat and the automatic adjustment of the gravity center, and to erect or lay down the backrest and the foot pad.
  • Two sets of the rubber tracks remain at an angle of about 160° at no-load mode, two sets of the rubber tracks keep an angle of 180° when the two sets of rubber tracks are kept at full load, when going upstairs two sets of the rubber tracks maintain an angle of about 180°, the seat automatically adjusted to the level, the seat center of gravity automatically moving forward, When going downstairs two sets of the rubber tracks keep an angle of about 180°, the seat automatically adjusted to the level and the center of gravity of the seat is automatically moved backward; two sets of the rubber tracks hold an angle of about 180° when starting going upstairs, the seat automatically is adjusted to the level and the center of gravity of the seat automatically is moved_forward; two sets of the rubber tracks maintain an angle of about 160° when going downhill, the seat automatically adjusted to the level and the center of gravity of the seat automatically being moved_backward.
  • the electric wheelchair may walk freely on the flat road, an uphill and a downhill, go upstairs and downstairs freely, and go straightly up and down without the reverse, having the advantages of simple operation and safe use.
  • FIG. 1 is a front view of the present invention.
  • FIG. 2 is a back view of the present invention.
  • FIG. 3 is an operation view of the present invention.
  • the present invention relates to an electric wheelchair, including of a chasing, a walking mechanism (rubber tracks, suspension, driving wheels, driven wheels and shock absorbers) , a seat (cushion, backrest, pedal, handrails, headrest, closet seat pad, urinal, backrest pushing rod and foot pad pushing rod) , seat level adjustment mechanism (semi-circular gear, driving gear and gear bracket) , a seat gravity-center adjustment mechanism (cylindrical linear guide and ball screw) , a power system (drive motor, seat level adjustment mechanism motor, seat weight-center adjustment mechanism motor) , a power supply (battery pack) and an electrical control system (walking controller and seat controller) .
  • a walking mechanism rubber tracks, suspension, driving wheels, driven wheels and shock absorbers
  • a seat cushion, backrest, pedal, handrails, headrest, closet seat pad, urinal, backrest pushing rod and foot pad pushing rod
  • seat level adjustment mechanism sini-circular gear, driving gear and gear bracket
  • the chasing (08) is a frame-shape and bears all components;
  • the walking mechanism comprising the rubber tracks (09) , the suspension (11) , the driving wheels (10) , the driven wheels (12) and the shock absorber (14) , and is provided with two sets of the rubber tracks (09) symmetrically at the left and the right sides each, each set of the rubber tracks (09) are provided with one driving wheel (10) and a plurality of the driven wheels (12) , the driving wheels (10) of the two sets of the rubber tracks (09) at each side are linked by a chain (13) , one driving wheel (10) is driven by the motor (15) , the suspension (11) of each set of the rubber tracks (09) takes an axis of the driving wheel as an axis thereof, and is connected with the chasing (08) via the axis and the shock absorber (14) to form four independent suspension walking mechanisms;
  • the seat comprising the cushion (04) , the backrest (17) , the pedal (05) , the handrails (01) ,
  • Two sets of the rubber tracks remain at an angle of about 160° at no-load, two sets of the rubber tracks keep an angle of 180° when the two sets of rubber tracks are kept at full load, when going upstairs two sets of the rubber tracks maintain an angle of about 180°, the seat automatically adjusted to the level, the seat center of gravity automatically moving forward, When going downstairs two sets of the rubber tracks keep an angle of about 180°, the seat automatically adjusted to the level and the center of gravity of the seat is automatically moved backward; two sets of the rubber tracks hold an angle of about 180° when starting going upstairs, the seat automatically is adjusted to the level and the center of gravity of the seat automatically is moved forward; two sets of the rubber tracks maintain an angle of about 160° when going downhill, the seat automatically adjusted to the level and the center of gravity of the seat automatically being moved backward.
  • the electric wheelchair may walk freely on a flat road, a uphill and a downhill, go upstairs and downstairs freely, and go straightly up and down without a reverse, having the advantages of simple operation and safe use.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Handcart (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un fauteuil roulant électrique. Ce fauteuil roulant électrique comprend un châssis (08), un mécanisme de marche, un siège, un mécanisme de réglage du niveau du siège et un mécanisme de réglage du centre de gravité du siège. Deux ensembles de chenilles en caoutchouc (09) sont respectivement disposés sur les côtés gauche et droit du fauteuil roulant électrique, formant quatre mécanismes de marche de suspension indépendants. Les deux ensembles de chenilles en caoutchouc (09) maintiennent un angle d'environ 160° en mode sans charge, et maintiennent un angle d'environ 180° en mode pleine charge. Le fauteuil roulant électrique peut marcher sur une route plate, monter et descendre librement. Le fauteuil roulant électrique peut monter et descendre les escaliers sans action d'inversion.
PCT/CN2017/086242 2017-03-06 2017-05-27 Fauteuil roulant électrique Ceased WO2018161443A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710152655.4A CN108524122A (zh) 2017-03-06 2017-03-06 电动轮椅
CN201710152655.4 2017-03-06

Publications (1)

Publication Number Publication Date
WO2018161443A1 true WO2018161443A1 (fr) 2018-09-13

Family

ID=63447111

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/086242 Ceased WO2018161443A1 (fr) 2017-03-06 2017-05-27 Fauteuil roulant électrique

Country Status (2)

Country Link
CN (1) CN108524122A (fr)
WO (1) WO2018161443A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109363842A (zh) * 2018-10-10 2019-02-22 陈传东 一种多功能康复车
US10772776B2 (en) 2018-10-03 2020-09-15 Earthwatch, Llc Suspension systems, powered wheelchairs with independent suspension systems, and method for assembling such powered wheelchairs
CN111870440A (zh) * 2020-07-31 2020-11-03 重庆电子工程职业学院 一种可拆卸的履带式多功能电动轮椅
CN114795698A (zh) * 2022-04-20 2022-07-29 刘鑫 一种智能爬楼轮椅
CN114795704A (zh) * 2022-06-24 2022-07-29 昌乐县人民医院 一种移动式护理椅
CN114848316A (zh) * 2022-05-13 2022-08-05 宜宾职业技术学院 一种控制轮椅上下台阶的方法
CN117397496A (zh) * 2023-11-14 2024-01-16 武汉理工大学 屋顶清洗装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109288632A (zh) * 2018-10-31 2019-02-01 马海光 一种可爬楼梯可平地行走的无障碍自动轮椅
CN109498294A (zh) * 2018-12-22 2019-03-22 陈巧真 一种方便遮挡电控测病人尿量运送病人轮椅装置
CN110326921B (zh) * 2019-07-17 2024-06-04 黄有超 一种车载多功能移动座椅
CN111839920B (zh) * 2020-07-22 2021-10-08 燕山大学 一种抓钩辅助的履带式爬楼机器人
CN112849285B (zh) * 2021-02-10 2021-12-17 吉林大学 一种自主平衡载物车
CN113133876B (zh) * 2021-03-23 2022-06-07 青岛理工大学 一种适用于多地形的智能人机交互多功能轮椅及使用方法
CN113975005B (zh) * 2021-09-24 2023-09-19 安吉居然雅竹家居用品有限公司 一种智能多功能座椅

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395129A (en) * 1993-04-07 1995-03-07 Kao; Chin-Hsing Wheel chair
US5577567A (en) * 1994-12-20 1996-11-26 Johnson; Robert E. Stair climbing wheelchair
US6250409B1 (en) * 1999-09-01 2001-06-26 Glenn D. Wells Multi-point mobility device
US20060037789A1 (en) * 2004-08-17 2006-02-23 Lev Kritman Stair-climbing apparatus
CN102697612A (zh) * 2012-06-20 2012-10-03 上海电机学院 一种可越障爬楼轮椅及其上下楼控制方法
CN103356346A (zh) * 2012-03-28 2013-10-23 王庆元 悬挂式重力平衡重心可移动爬楼梯车
CN205698286U (zh) * 2016-02-29 2016-11-23 华南理工大学 一种护理助动系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395129A (en) * 1993-04-07 1995-03-07 Kao; Chin-Hsing Wheel chair
US5577567A (en) * 1994-12-20 1996-11-26 Johnson; Robert E. Stair climbing wheelchair
US6250409B1 (en) * 1999-09-01 2001-06-26 Glenn D. Wells Multi-point mobility device
US20060037789A1 (en) * 2004-08-17 2006-02-23 Lev Kritman Stair-climbing apparatus
CN103356346A (zh) * 2012-03-28 2013-10-23 王庆元 悬挂式重力平衡重心可移动爬楼梯车
CN102697612A (zh) * 2012-06-20 2012-10-03 上海电机学院 一种可越障爬楼轮椅及其上下楼控制方法
CN205698286U (zh) * 2016-02-29 2016-11-23 华南理工大学 一种护理助动系统

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10772776B2 (en) 2018-10-03 2020-09-15 Earthwatch, Llc Suspension systems, powered wheelchairs with independent suspension systems, and method for assembling such powered wheelchairs
CN109363842A (zh) * 2018-10-10 2019-02-22 陈传东 一种多功能康复车
CN111870440A (zh) * 2020-07-31 2020-11-03 重庆电子工程职业学院 一种可拆卸的履带式多功能电动轮椅
CN114795698A (zh) * 2022-04-20 2022-07-29 刘鑫 一种智能爬楼轮椅
CN114795698B (zh) * 2022-04-20 2023-05-05 刘鑫 一种智能爬楼轮椅
CN114848316A (zh) * 2022-05-13 2022-08-05 宜宾职业技术学院 一种控制轮椅上下台阶的方法
CN114795704A (zh) * 2022-06-24 2022-07-29 昌乐县人民医院 一种移动式护理椅
CN114795704B (zh) * 2022-06-24 2022-09-06 昌乐县人民医院 一种移动式护理椅
CN117397496A (zh) * 2023-11-14 2024-01-16 武汉理工大学 屋顶清洗装置

Also Published As

Publication number Publication date
CN108524122A (zh) 2018-09-14

Similar Documents

Publication Publication Date Title
WO2018161443A1 (fr) Fauteuil roulant électrique
CN206381295U (zh) 侧向爬楼梯电动轮椅
CN101797202B (zh) 履带式平地楼梯两用代步车
CN100577497C (zh) 履带式自平衡载人车装置
CN104622650B (zh) 一种轮‑履复合式电动轮椅
CN104970931A (zh) 一种多功能电动轮椅车
CN108024895B (zh) 轮子与履带混合式移动机构
CN103169579A (zh) 可快速拆装电动爬楼轮椅车
CN103110487A (zh) 一种梯陆两栖无障碍智能机器人轮椅
CN205339345U (zh) 基于行走轮摆动的双节双履带爬楼轮椅
CN212281925U (zh) 蓄电池助力行走及攀爬楼梯多功能轮椅
CN208541489U (zh) 一种可变形履带轮椅车
CN102626359B (zh) 自助式可上下楼梯的电动轮椅
CN102327164A (zh) 可自行上下楼的椅车
CN207912842U (zh) 电动轮椅
CN204744699U (zh) 一种多功能电动轮椅车
CN201692189U (zh) 上下楼梯代步车的履带式动力传动机构
CN203138895U (zh) 一种梯陆两栖无障碍智能机器人轮椅
CN111870441A (zh) 一种前悬式履带爬楼助力车
RU2410071C1 (ru) Транспортное средство
CN111317622A (zh) 蓄电池助力行走及攀爬楼梯多功能轮椅
CN106491285A (zh) 智能多功能全地形老年轮椅代步车及控制方法
CN101816602B (zh) 多功能四轮驱动式电动轮椅
CN106420204A (zh) 一种新型电动爬楼车
CN202821884U (zh) 自助式可上下楼梯的电动轮椅

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17899811

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17899811

Country of ref document: EP

Kind code of ref document: A1