GB1087225A - Improvements in steering arrangements of invalid chalrs - Google Patents
Improvements in steering arrangements of invalid chalrsInfo
- 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
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.
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)
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 |
-
1963
- 1963-10-08 GB GB39656/6?A patent/GB1087225A/en not_active Expired
Cited By (9)
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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