GB569563A - Devices for converting reciprocatory movement into rotating movement and for steering manually propelled vehicles - Google Patents

Devices for converting reciprocatory movement into rotating movement and for steering manually propelled vehicles

Info

Publication number
GB569563A
GB569563A GB8248/43A GB824843A GB569563A GB 569563 A GB569563 A GB 569563A GB 8248/43 A GB8248/43 A GB 8248/43A GB 824843 A GB824843 A GB 824843A GB 569563 A GB569563 A GB 569563A
Authority
GB
United Kingdom
Prior art keywords
wheels
freewheels
sprockets
chain
wheel
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
GB8248/43A
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
Priority to GB8248/43A priority Critical patent/GB569563A/en
Publication of GB569563A publication Critical patent/GB569563A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/02Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10Parts, details or accessories
    • A61G5/1051Arrangements 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)
  • Transmissions By Endless Flexible Members (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

569,563. Vehicle driving and steering mechanism. BOOLE, R. May 24, 1943, No. 8248. [Classes 80 (i) and 80 (ii)] [Also in Group XXXI] Hand driving mechanism for invalid chairs and the like comprises an oscillating lever connected by a single flexible member to two oscillating members mounted by freewheels on a shaft or shafts parallel to the axis of oscillation of the lever, the fulcrum of the latter being midway between the points of attachment of the flexible member. Handles 1a, 1b, Fig. 1, are carried on a pivot 7 fixed to a chain-wheel 2 the chain of which passes round freewheels 3a, 3b on a driven shaft 4, and round a spring tensioning pulley 5. A ball-ended lever 8 connected to the handle assembly is associated with the steerable wheels of the vehicle. In a modification, the main chain-wheel 1, Fig. II, is connected by a chain 4 to wheels 2a, 2c, on parallel shafts carrying additional wheels 2b, 2d, respectively. Wheels 2b, 2c are connected by a chain 3. Wheel 2c, and one or more of the other wheels, are freewheels. In another modification the wheels 2b, 2d are directlymeshing gear-wheels. In a modification the handle 2b is fixed to a sprocket wheel 1b, Figs. IV, V, and the handle 2a to a dished disc 1a with a smooth perimeter 8b and four sprockets 7a ... 7d. A driving chain passes round these parts as shown and round sprockets 3a, 4a, the shafts of which carry sprockets 3b, 4b. Two or more of these sprockets, 3a ... 4b, are freewheels, the sprockets 3b, 4b being connected by a chain to a sprocket 5 on the driven shaft. The hubs of the sprocket wheels 1a, 1b are screwthreaded with different pitches and are connected by a spindle 10, screwed to correspond. The spindle 10 is connected to the steerable wheels of the vehicle. When the handles 2a, 2b are oscillated in unison the driven shaft is driven continuously in one direction. If the handles 2a, 2b are moved relatively to one another the spindle moves axially to cause steering of the vehicle. The four sprockets 3a ... 4b may be mounted in a gear-box and arranged to give a reverse drive. As shown in Fig. VI, all sprockets are freewheels, one pair 3a, 4a being arranged to drive in one direction and the other pair 3b, 4b in the other. Clutch plates 4, splined to the spindles have dogs 5a, 5b on opposite sides engageable with dogs 2a, 2b on the outer members of the freewheels. The plates 4 are connected together by a disc 7 connected to an operating cable so that they can be slid to lock either pair of freewheels to their spindles according to the direction of drive required. In a modified steering construction the main chain-wheel forms the central member of a differential gearing, an operating lever being attached to each of the two balance shafts which are internally threaded or splined to dperate with a spindle such as shown in Fig. V.
GB8248/43A 1943-05-24 1943-05-24 Devices for converting reciprocatory movement into rotating movement and for steering manually propelled vehicles Expired GB569563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8248/43A GB569563A (en) 1943-05-24 1943-05-24 Devices for converting reciprocatory movement into rotating movement and for steering manually propelled vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8248/43A GB569563A (en) 1943-05-24 1943-05-24 Devices for converting reciprocatory movement into rotating movement and for steering manually propelled vehicles

Publications (1)

Publication Number Publication Date
GB569563A true GB569563A (en) 1945-05-30

Family

ID=9848849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8248/43A Expired GB569563A (en) 1943-05-24 1943-05-24 Devices for converting reciprocatory movement into rotating movement and for steering manually propelled vehicles

Country Status (1)

Country Link
GB (1) GB569563A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0463651A1 (en) * 1990-05-02 1992-01-02 Revab B.V. A driving gear for a muscle power driven vehicle, such as a wheel chair
RU2557921C2 (en) * 2010-11-15 2015-07-27 Владимир Александрович Савченко Muscular drive
CN110769794A (en) * 2017-05-05 2020-02-07 D·G·罗宾斯 Gear clutch transmission device for wheelchair

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0463651A1 (en) * 1990-05-02 1992-01-02 Revab B.V. A driving gear for a muscle power driven vehicle, such as a wheel chair
US5167168A (en) * 1990-05-02 1992-12-01 Revab B.V. Driving gear for a muscle power driven vehicle, such as a wheel chair
RU2557921C2 (en) * 2010-11-15 2015-07-27 Владимир Александрович Савченко Muscular drive
CN110769794A (en) * 2017-05-05 2020-02-07 D·G·罗宾斯 Gear clutch transmission device for wheelchair

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