A trolley and a wheel assembly for a trolley

B - Operations – Transporting – 62 – B

Patent

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Details

B62B 3/14 (2006.01) B62B 3/02 (2006.01)

Patent

CA 2697018

A trolley (10), including a trolley frame (12), a plurality of wheels (14,16), (18,20) mounted to the frame (12) for supporting the trolley (10) thereon, and a direction control wheel (22). The direction control wheel (22) is connected to the frame (12) and displaceable relative to the frame (12) between at least three positions, the at least three positions including a ground contact position, a ground clearance position and an obstacle negotiating position. The direction control wheel (22) is provided for controlling the direction of travel of the trolley (10) when in the ground contact position. The direction control wheel (22) is operably movable between the ground contact position and the ground clearance position, and independently movable between the ground contact position and the obstacle negotiating position. Further, the direction control wheel (22) is independently movable between the ground clearance position and the obstacle negotiating position.

L'invention concerne un chariot (10), comprenant un châssis de chariot (12), plusieurs roues (14, 16), (18, 20) montées sur le châssis (12) pour supporter le chariot (10) sur celles-ci, et une roue de commande de direction (22). La roue de commande de direction (22) est reliée au châssis (12) et peut être déplacée par rapport au châssis (12) entre au moins trois positions, les trois positions ou plus comprenant une position de contact avec le sol, une position dégagée du sol et une position de négociation d'obstacle. La roue de commande de direction (22) est prévue pour commander la direction de déplacement du chariot (10) lorsqu'elle est dans la position de contact avec le sol. La roue de commande de direction (22) est mobile de façon fonctionnelle entre la position de contact avec le sol et la position dégagée du sol, et est mobile indépendamment entre la position de contact avec le sol et la position de négociation d'obstacle. En outre, la roue de commande de direction (22) est mobile de façon indépendante entre la position dégagée du sol et la position de négociation d'obstacle.

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