B - Operations – Transporting – 62 – B
Patent
B - Operations, Transporting
62
B
B62B 3/14 (2006.01) B60B 33/00 (2006.01) B62B 3/00 (2006.01)
Patent
CA 2442892
A trolley includes a front wheel assemblie (12) and a rear wheel assembly both assemblies mounted on a trolley frame. The front wheel assembly (12) includes a fixed wheel assembly (24) to aid control of the trolley. In one form the front wheel assembly (12) includes a pair of swivel castors (18) and a fixed wheel assembly (24) disposed between the castors (18). The front wheel assembly (12) is designed so that when the castors (18) swivel from their orientation for forward travel, the fixed wheel assembly (24) is caused to be lifted off the ground. The trolley also includes a camming device which is operative to lift the front wheel assembly (12) off the ground when the trolley is moved into a nested configuration with a like trolley.
L'invention concerne un chariot présentant un ensemble roulettes avant (12) et un ensemble roulettes arrière, ces deux ensembles étant montés sur un châssis de chariot. L'ensemble roulettes avant (12) comprend un ensemble roulettes fixes (24) aidant à diriger ce chariot. Dans un mode de réalisation, cet ensemble roulettes avant (12) comporte une paire de roulettes pivotantes (18) et un ensemble roulettes fixes (24) placé entre les roulettes pivotantes (18). Cet ensemble roulettes avant (12) est conçu, de sorte que lorsque les roulettes pivotantes (18) pivotent par rapport à leur orientation pour permettre un déplacement vers l'avant, l'ensemble roulettes fixes (24) est relevé du sol. Ledit chariot comprend également un dispositif de coincement servant à relever du sol l'ensemble roulettes avant (12) lorsqu'il s'agit de ranger ce chariot en l'emboîtant dans un chariot similaire.
Higgins Brian John
Torys Llp
LandOfFree
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