B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
B62D 51/00 (2006.01) B62B 3/06 (2006.01) B62B 5/00 (2006.01) B62D 51/04 (2006.01) B66F 9/06 (2006.01)
Patent
CA 2595210
There is provided a cart for lifting and moving materials. The cart includes a lift mechanism (112) for raising and lowering a support surface to lift the materials during transport. The cart also includes a motorized drive wheel assembly (114) which provides a drive force in a forward or backward direction to assist the operator in moving the materials. The motorized drive wheel assembly has a variable vertical position relative to the chart wheels (102) to enable the drive wheels (154) to provide a drive force over contoured surfaces, such as near the base or top or a ramp. The motorized drive wheel assembly also includes a weight (160) to maintain a minimum normal force for traction and includes a differential to allow the drive wheels (154) to rotate at differing speeds to facilitate convenient steering of the cart. The cart is powered by one or more rechargeable batteries.
La présente invention concerne un chariot pour lever et déplacer des matériaux. Le chariot comprend un mécanisme de levage (112) destiné à lever et abaisser une surface de support pour lever les matériaux pendant le transport. Le chariot comprend également un ensemble motorise de roues motrices (114) qui fournit une force motrice dans une direction avant ou arrière afin d~aider l~opérateur à déplacer les matériaux. L~ensemble motorisé de roues motrices a une position verticale variable par rapport aux roues du chariot (102) afin de permettre aux roues motrices (154) de fournir une force motrice sur des surfaces profilées , telles que proches de la base ou au sommet d~une rampe. L~ensemble motorisé de roues motrices comprend également un poids (160) pour conserver une force normale minimale de traction et comprend un différentiel pour permettre aux roues motrices (154) de tourner à différentes vitesses afin de faciliter la commande adaptée du chariot. Le chariot est alimenté par une ou plusieurs batteries rechargeables.
Pratt John R.
Springston Eric D.
Williams Dale A.
Multi-Shifter Inc.
Ridout & Maybee Llp
LandOfFree
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