GB1491555A - Stair climbing tracked vehicle - Google Patents

Stair climbing tracked vehicle

Info

Publication number
GB1491555A
GB1491555A GB264375A GB264375A GB1491555A GB 1491555 A GB1491555 A GB 1491555A GB 264375 A GB264375 A GB 264375A GB 264375 A GB264375 A GB 264375A GB 1491555 A GB1491555 A GB 1491555A
Authority
GB
United Kingdom
Prior art keywords
tracks
auxiliary tracks
pivoted
auxiliary
seat
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
GB264375A
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.)
RAMBY Inc
Original Assignee
RAMBY Inc
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 RAMBY Inc filed Critical RAMBY Inc
Priority to GB264375A priority Critical patent/GB1491555A/en
Publication of GB1491555A publication Critical patent/GB1491555A/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
    • A61G5/06—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
    • 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
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/42—General characteristics of devices characterised by sensor means for inclination

Abstract

1491555 Wheel chairs for ascending stairs RAMBY Inc 21 Jan 1975 2643/75 Headings B7D B7E and B7H A tracked wheel chair capable of negotiating stairs comprises a pair of auxiliary tracks 32 pivoted to main tracks 22, a self levelling seat 54 and a linkage 70 for controlling pivotal movement of the auxiliary tracks. For normal travel the auxiliary tracks are pivoted upwardly about shafts 36, which also mount the main track drive sprockets 26, and wheels 62 at the rear of the auxiliary tracks contact the ground lifting the front ends of the main tracks. Drive to sprockets 26 may be via hand cranks 40, 40<SP>1</SP> and chains 44, 44<SP>1</SP> or by an electric motor and each main track may be driven independently. Linkage 70 includes a piston/cylinder device 84, 86 and an arm 73 connected by a joint which may be locked to hold the auxiliary tracks pivoted upwardly (Fig. 14a, not shown). Release of the joint (Fig. 14b, not shown) also releases a catch 80 holding the piston/cylinder device, and the tracks lower under gravity without extending the device until they pass below the horizontal. The device 84, 86 includes a restriction to prevent rapid movement of the auxiliary tracks. Seat 54 is supported on a pedestal 52 pivoted about shafts 36 and is moved in response to an inclination sensor to keep the seat level via a motor 90 and screw jack 92. The sensor includes a damped pendulum element (Fig. 15, not shown). Fail safe devices are provided to ensure that the wheel chair cannot descend stairs unless positively driven and cannot slide back whilst ascending.
GB264375A 1975-01-21 1975-01-21 Stair climbing tracked vehicle Expired GB1491555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB264375A GB1491555A (en) 1975-01-21 1975-01-21 Stair climbing tracked vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB264375A GB1491555A (en) 1975-01-21 1975-01-21 Stair climbing tracked vehicle

Publications (1)

Publication Number Publication Date
GB1491555A true GB1491555A (en) 1977-11-09

Family

ID=9743207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB264375A Expired GB1491555A (en) 1975-01-21 1975-01-21 Stair climbing tracked vehicle

Country Status (1)

Country Link
GB (1) GB1491555A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126540A (en) * 1982-09-10 1984-03-28 Robert Hester Stair climbing vehicles
GB2135255A (en) * 1982-12-28 1984-08-30 Sunwa Sharyo Mfg Co Stair vehicle
EP1043007A3 (en) * 1999-04-07 2001-09-19 Gobbers, Walter und Dieter Stair-climbing device, particularly for wheelchairs
TWI602729B (en) * 2014-01-28 2017-10-21 國立中山大學 Portable vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126540A (en) * 1982-09-10 1984-03-28 Robert Hester Stair climbing vehicles
GB2135255A (en) * 1982-12-28 1984-08-30 Sunwa Sharyo Mfg Co Stair vehicle
EP1043007A3 (en) * 1999-04-07 2001-09-19 Gobbers, Walter und Dieter Stair-climbing device, particularly for wheelchairs
TWI602729B (en) * 2014-01-28 2017-10-21 國立中山大學 Portable vehicle

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee