GB1087225A - Improvements in steering arrangements of invalid chalrs - Google Patents

Improvements in steering arrangements of invalid chalrs

Info

Publication number
GB1087225A
GB1087225A GB39656/6?A GB3965663A GB1087225A GB 1087225 A GB1087225 A GB 1087225A GB 3965663 A GB3965663 A GB 3965663A GB 1087225 A GB1087225 A GB 1087225A
Authority
GB
United Kingdom
Prior art keywords
line
piston
steering
valve
pressure
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.)
Expired
Application number
GB39656/6?A
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.)
GEORGE CHARLES LEIGH
Molins Machine Co Ltd
Original Assignee
GEORGE CHARLES LEIGH
Molins Machine Co Ltd
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 GEORGE CHARLES LEIGH, Molins Machine Co Ltd filed Critical GEORGE CHARLES LEIGH
Priority to GB39656/6?A priority Critical patent/GB1087225A/en
Publication of GB1087225A publication Critical patent/GB1087225A/en
Expired legal-status Critical Current

Links

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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/047—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven by a modular detachable drive system
    • 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
    • A61G5/1051—Arrangements for steering

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)
  • Steering Controls (AREA)

Abstract

1,087,225. Power steering. MOLINS ORGANISATION Ltd., and G. C. LEIGH. Sept. 22, 1964 [Oct. 8, 1963], No. 39656/63. Heading B7H. A power steering system for an invalid chair comprises a pump 21 driven through a flexible cable 22 from an electric motor 23 operated by the vehicle battery 6, the pump having an output line 27 leading to a line 24 supplying one end of a power cylinder 19 and to a line 17 leading to a control valve 9 which is connected by a line 16 to the other end of the cylinder 19 and by a line 18 to the reservoir 20. In the mid position of the valve, Fig. 4, throttle apertures 29, 29A between the valve spool and control edges allow for a reduced pressure in the lines 17 and 24 and a small build-up of pressure in line 16, such that, these pressures acting upon the faces of the piston of unequal area, a dynamic balance is achieved. By moving the valve spool 8 to the left, the pressure will increase in line 17 to move the piston, and by moving the spool 8 to the right, the pressure in line 16 will increase, and, acting upon the piston face of greater area, will move the piston in the opposite direction. The piston rod is connected to a rack 32 which acts upon a pinion 33 connected to a shaft 34 for steering the wheel 4 which is also the driving wheel of the vehicle. The valve 9 may be contained within a housing 35 and is operated by a lever 7, very small movements of which produce the required steering. A contact arm may be fixed to the shaft 34 and co-operate with a series of electrical contacts so as to register the direction of steering upon a dial mounted adjacent the housing 35.
GB39656/6?A 1963-10-08 1963-10-08 Improvements in steering arrangements of invalid chalrs Expired GB1087225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB39656/6?A GB1087225A (en) 1963-10-08 1963-10-08 Improvements in steering arrangements of invalid chalrs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39656/6?A GB1087225A (en) 1963-10-08 1963-10-08 Improvements in steering arrangements of invalid chalrs

Publications (1)

Publication Number Publication Date
GB1087225A true GB1087225A (en) 1967-10-18

Family

ID=10410743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39656/6?A Expired GB1087225A (en) 1963-10-08 1963-10-08 Improvements in steering arrangements of invalid chalrs

Country Status (1)

Country Link
GB (1) GB1087225A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503925A (en) * 1983-06-13 1985-03-12 Amigo Sales, Inc. Detachable steerable power unit for occupant-propelled wheelchairs
US5322140A (en) * 1992-02-03 1994-06-21 Amigo Mobility International, Inc. Steering systems for four-wheeled carts
CN103110485A (en) * 2013-02-25 2013-05-22 武汉理工大学 Multifunctional intelligent medical guardian wheelchair and wheelchair control method
CN106585703A (en) * 2016-10-18 2017-04-26 广州史可威动漫科技有限公司 Electronic throttle direction assembly
USD786741S1 (en) 2015-11-16 2017-05-16 Amigo Mobility International, Inc. Lateral stability wheel
USD800410S1 (en) 2015-11-23 2017-10-17 Amigo Mobility International, Inc. Material handling cart
USD805004S1 (en) 2015-07-01 2017-12-12 Amigo Mobility International, Inc. Brake release handle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503925A (en) * 1983-06-13 1985-03-12 Amigo Sales, Inc. Detachable steerable power unit for occupant-propelled wheelchairs
US5322140A (en) * 1992-02-03 1994-06-21 Amigo Mobility International, Inc. Steering systems for four-wheeled carts
CN103110485A (en) * 2013-02-25 2013-05-22 武汉理工大学 Multifunctional intelligent medical guardian wheelchair and wheelchair control method
CN103110485B (en) * 2013-02-25 2015-07-08 武汉理工大学 Multifunctional intelligent medical guardian wheelchair and wheelchair control method
USD805004S1 (en) 2015-07-01 2017-12-12 Amigo Mobility International, Inc. Brake release handle
USD786741S1 (en) 2015-11-16 2017-05-16 Amigo Mobility International, Inc. Lateral stability wheel
USD800410S1 (en) 2015-11-23 2017-10-17 Amigo Mobility International, Inc. Material handling cart
CN106585703A (en) * 2016-10-18 2017-04-26 广州史可威动漫科技有限公司 Electronic throttle direction assembly
CN106585703B (en) * 2016-10-18 2018-10-09 广州史可威动漫科技有限公司 A kind of E-Gas direction assembly

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