UNIVERSAL VARIABLE-GEOMETRY WHEEL, ABLE TO TRAVEL UPSTAIRS AND DOWNSTAIRS, TO PASS OVER OBSTACLES AND TO TRAVEL ON ANY TERRAIN

The invention relates to a universal variable-geometry wheel meant to be used for equipping vehicles, wheelchairs for disabled people, or robots, in order to move up or down a flight of stairs or easily pass over obstacles, irrespective of the flatness or viscosity of the terrain, while keeping reas...

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1. Verfasser: PASCALE VIOREL
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description The invention relates to a universal variable-geometry wheel meant to be used for equipping vehicles, wheelchairs for disabled people, or robots, in order to move up or down a flight of stairs or easily pass over obstacles, irrespective of the flatness or viscosity of the terrain, while keeping reasonable comfort conditions. According the invention, the wheel consists of a soft caterpillar chain (1) in the shape of a tyre non-pressurized, within which some expanded polystyrene beads (2) are arranged, driven by a drive wheel (3) which, upon rotation leads to the agglomeration of the beads (2) in the front part of the caterpillar chain (1) around obstacles, such that the pressure exerted upon the caterpillar chain (1) from the interior makes the caterpillar chain (1) rotate and be deformed on the contour of the obstacle encountered and thereby pass over the obstacle or stair. Invenţia se referă la o roată universală cu geometrie variabilă, destinată echipării vehiculelor, căruţurilor pentru persoanele cu handicap sau roboţilor, pentru a urca şi coborî treptele, sau pentru a trece cu uşurinţă peste obstacole, indiferent de planeitatea sau viscozitatea terenului, păstrând un confort rezonabil. Roata conform invenţiei este alcătuită dintr-o şenilă (1) moale, de forma unei anvelope, nepresurizată, în interiorul căreia sunt dispuse nişte granule (2) din polistiren expandat, antrenate de o roată (3) motoare care, atunci când se învârte, determină granulele (2) să se aglomereze în partea din faţă a şenilei (1), în jurul obstacolelor, în aşa fel încât prin presiunea pe care o exercită asupra şenilei (1) din interior determină rotirea şi deformarea şenilei (1) pe conturul obstacolului întâlnit şi, deci, deplasarea peste un obstacol sau peste o treaptă.
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According the invention, the wheel consists of a soft caterpillar chain (1) in the shape of a tyre non-pressurized, within which some expanded polystyrene beads (2) are arranged, driven by a drive wheel (3) which, upon rotation leads to the agglomeration of the beads (2) in the front part of the caterpillar chain (1) around obstacles, such that the pressure exerted upon the caterpillar chain (1) from the interior makes the caterpillar chain (1) rotate and be deformed on the contour of the obstacle encountered and thereby pass over the obstacle or stair. Invenţia se referă la o roată universală cu geometrie variabilă, destinată echipării vehiculelor, căruţurilor pentru persoanele cu handicap sau roboţilor, pentru a urca şi coborî treptele, sau pentru a trece cu uşurinţă peste obstacole, indiferent de planeitatea sau viscozitatea terenului, păstrând un confort rezonabil. 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source esp@cenet
subjects AXLES FOR WHEELS OR CASTORS
CASTORS
HAND-PROPELLED VEHICLES, e.g. HAND CARTS, PERAMBULATORS
INCREASING WHEEL ADHESION
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
PERFORMING OPERATIONS
SLEDGES
TRANSPORTING
VEHICLE WHEELS
VEHICLES IN GENERAL
title UNIVERSAL VARIABLE-GEOMETRY WHEEL, ABLE TO TRAVEL UPSTAIRS AND DOWNSTAIRS, TO PASS OVER OBSTACLES AND TO TRAVEL ON ANY TERRAIN
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