Back to results
US 4,061,199 AGranted
Chassis for a vehicle capable of travelling over obstructions
AssigneeKarl-Heinz Werner Toosbuy
InventorWerner Last
Life of this patent
Estimating the term…
Abstract
The invention relates to a chassis for a vehicle capable of travelling over obstacles. Besides roadwheels and step wheels an endless elastic belt is provided, the elastic belt engaging portions of the step wheel peripheries. The elastic belt is coupled to a drive as a result of which the step wheels are driven by the belt. Field of application: Wheelchairs, sack or baggage trucks, and cross-country vehicles.
Claims15
A mechanism for a vehicle having a frame capable of travelling over obstacles, comprising
- a. a chassis;
- b. roadwheels supporting the frame;
- c. a spider rotatably connected to the chassis and having a plurality of step wheels rotatably mounted at the ends of its arms;
- d. endless elastic belt means connecting the step wheels by engaagement with their peripheries;
- e. the distance between successive step wheels being sufficient to permit the belt means to fold into engagement with the riser and tread of a stair step encountered by the vehicle;
- and
- f. a drive means on said vehicle, including a drive wheel disposed outside the periphery of the spider, for directly engaging and driving the belt means.
4 more elements
Dependencies are inferred from the claim text.