Abstract: A skateboard or longboard truck comprises a hanger and a baseplate assembly. A redesigned hanger, a large ball pivot, a load-redirecting pivot cup, a tapered kingpin and other improvements give the hanger a high kingpin ratio and a high angle of mechanical advantage, thereby improving the performance and turning characteristics of the truck.

Abstract: A skateboard or longboard truck comprises a hanger and a baseplate assembly. A redesigned hanger, a large ball pivot, a load-redirecting pivot cup, a tapered kingpin and other improvements give the hanger a high kingpin ratio and a high angle of mechanical advantage, thereby improving the performance and turning characteristics of the truck.

Abstract: A skateboard or longboard truck comprises a hanger that includes a structural member that embraces an axle or pair of axles that support two wheels. The axle or pair of axles include two bearing standoffs that separate a bearing surface of the axle from a face of the structural member that embraces the axle. Alternatively, the structural member that embraces the axle or pair of axles includes two bearing standoffs that separate a bearing surface of the face of the structural member from a non-bearing surface of the face of the structural member.

Abstract: A vehicular swing arm assembly includes a swing member, an axle support assembly, and an axle. The swing member is configured for pivotal attachment to a frame of a vehicle. The axle support assembly includes a driven member and a cross member assembly. The driven member is rotatably coupled with the swing member and is rotatable about a drive axis. The cross member assembly includes a first pivot member and a second pivot member. The first pivot member is pivotally coupled with the driven member and is pivotable with respect to the driven member. The second pivot member is pivotally coupled with the first pivot member and is pivotable with respect to the first pivot member. The axle is coupled with one of the first and second pivot members and is rotatable. Rotation of the driven member about the drive axis facilitates rotation of the axle.

Abstract: A mobile robot platform and a method for sensing movement of the same are disclosed, which utilize two omni-directional meter wheels perpendicular to each other and a magnetic sensing module for detecting a moving condition of the platform moving on a planar surface while transmitting the detected moving condition to a signal processing unit to calculate the position, velocity, angular position and angular velocity of the platform.

Abstract: A caster suspension system for a multi-axle transport vehicle for moving heavy loads includes two fluid activated cylinders and two spaced apart arms for each wheel and axle set which allow the transport vehicle to be raised and lowered with respect to the roadway. The suspension system mechanically stabilizes the axles with respect to the transport vehicle thereby reducing axle yaw and allowing higher transport speeds. As the transport vehicle moves, the suspension system casters into alignment with the direction of travel.

Abstract: A suspension system for a multi-axle transport vehicle for moving heavy loads includes two fluid activated cylinders and two spaced apart arms for each wheel and axle set which allow the transport vehicle to be raised and lowered with respect to the roadway. The suspension system mechanically stabilizes the axles with respect to the transport vehicle thereby reducing axle yaw and allowing higher transport speeds.

Abstract: A front suspension for a tractor has an axle that is pivotally coupled to an axle carrier to pivot about a substantially longitudinal axis. The axle carrier, in turn, is pivotally coupled to the chassis of the vehicle to pivot about a generally vertical axis. The front end of the axle carrier is supported by a counter frame that prevents the axle carrier from twisting about a longitudinal axis. The counter frame is pivotally coupled to the chassis of the tractor to pivot about a generally lateral and horizontal axis. Both the axle carrier and the counter frame are constrained to pivot about the common horizontal and lateral axis with respect to the chassis of the tractor. Springs are coupled between the counter frame and the chassis of the tractor to control the pivoting of the counter frame with respect to the tractor and provide shock absorbing for the front suspension.

Abstract: An axle mounting assembly includes a steerable axle mounted on an axle support and having a pair of opposing steerable wheels pivotally connected to the respective transverse ends of said steerable axle for pivotal movement relative thereto about respective wheel pivot axes. A substantially rigid connecting member extends between and is attached to the axle support and a steerable element of the steerable axle. The steerable axle is attached to the axle support by first, second and third flexible couplings. Each coupling provides for three planes of movement, the first flexible coupling attaching the axle to the axle support rearward of said axle, the second flexible coupling attaching the axle to a first end of a link forward of said axle and the third flexible coupling attaching a second end of said link to said axle support upwardly of said axle.

Abstract: A suspension system for a multi-axle transport vehicle for moving heavy loads includes two fluid activated cylinders and two spaced apart arms for each wheel and axle set which allow the transport vehicle to be raised and lowered with respect to the roadway. The suspension system mechanically stabilizes the axles with respect to the transport vehicle thereby reducing axle yaw and allowing higher transport speeds.

Abstract: An axle mounting assembly including a steerable axle having a pair of opposing steerable wheels pivotally connected to the respective transverse ends of said steerable axle for pivotal movement relative thereto about respective wheel pivot axes. An axle support. A substantially rigid connecting member extending between and attachable to the axle support and a steerable element of the steerable axle. The steerable axle being attached to the axle support by first, second and third flexible coupling. Each coupling providing for three planes of movement, the first flexible coupling attaching the axle to the axle support rearward of said axle, the second flexible coupling attaching the axle to a first end of a link forward of said axle and the third flexible coupling attaching a second end of said link to said axle support upwardly of said axle.

Abstract: A mobile rig on wheels with transverse motion, in particular a telescoping stacker, having a first axle mounted on a rigid vehicle frame and a second axle disposed transversely movably on the vehicle frame to describe a circular translation. Advantageously, the second axle is disposed on the vehicle frame by parallel links and the parallel links can be swivelled through vertical axes by swivel actuation device.