Skateboard with steering gear

Abstract

A skateboard with a standing surface for a user and with two wheel axles, on each of which at least two wheels are rotatably mounted, with a mounting for connecting the wheel axles to the standing surface and with steering gears in order to pivot the wheel axles about a vertical axis for steering by tilting the standing surface about its longitudinal axis from a starting position intersecting the longitudinal axis perpendicularly, characterized in that the wheel axles are arranged on the underside of the standing surface.

1 . Skateboard with a standing surface for a user and with two wheel axles, on each of which at least two wheels are rotatably mounted, with a mounting or a support for connecting the wheel axles to the standing surface and with steering gears in order to pivot the wheel axles about a vertical axis for steering by tilting the standing surface about its longitudinal axis from a starting position intersecting the longitudinal axis perpendicularly, wherein the wheel axles are arranged on the underside of the standing surface. 
     
     
         2 . Skateboard according to  claim 1 , wherein the standing surface is formed by two standing boards or, by a single standing board covering both wheel axles. 
     
     
         3 . Skateboard according to  claim 1 , wherein the standing surface is pivotable relative to each of the wheel axles. 
     
     
         4 . Skateboard according to  claim 3 , wherein the steering gears comprise bevel gears, by means of which the standing surface is pivotable about the longitudinal axis of the skateboard. 
     
     
         5 . Skateboard according to  claim 4 , wherein the standing boards can be pivoted through an angle of at most 35°. 
     
     
         6 . Skateboard according to  claim 1 , wherein the wheel axles together with a central vertical hub each are arranged rotatably relative to the vertical axes of the hubs of the skateboard and the contact surface of the skateboard. 
     
     
         7 . Skateboard according to  claim 6 , wherein the wheel axles are each arranged so as to be rotatable through an angle of at most 45° to each side with respect to the vertical axles. 
     
     
         8 . Skateboard according to  claim 1 , wherein the wheel axles are each connected to a hub which in turn surrounds the respective vertical axle. 
     
     
         9 . Skateboard according to  claim 8 , wherein the hubs are each mounted around the vertical axis via roller bearings, ball bearings and/or slide bearings. 
     
     
         10 . Skateboard according to  claim 1 , in that the two pivotally mounted standing boards are connected to each other by means of a connecting rod mounted in slide bearings. 
     
     
         11 . Skateboard according to  claim 1 , wherein the at least one standing board is constructed from a plurality of layers which are laid loosely one on top of the other and are fastened together by screwed or riveted connections with respect to one of the steering gears, or in that the layers are adhesively connected to one another. 
     
     
         12 . Skateboard according to  claim 1 , wherein adhesive nubs are attached to the at least one standing board. 
     
     
         13 . Skateboard according to  claim 1 , wherein the steering gears are formed by control cams having inclined planes and cam rollers cooperating therewith. 
     
     
         14 . Skateboard according to  claim 1 , in that it comprises on each side of the standing boards per axle a pair of wheels, which are each rotatably mounted in a lateral support frame. 
     
     
         15 . Skateboard according to  claim 14 , in that the lateral support frames are rotatably mounted on a supporting frame mounted about the central vertical axis or in that the lateral support frames are rigidly mounted on the supporting frame mounted about the central axis.