The disclosure relates to a wheel suspension of a device having an electrical drive of a wheel for supporting a manual movement impulse. The wheel suspension includes a connector piece movably or bendably arranged between a support element or support frame connected to the device and between an interior stator of an electrical drive, wherein the connector piece is held in a starting position due to the gravity of the device, without other influencing forces. The wheel suspension also includes at least one sensor that detects a deflection of the connector piece, and a control device designed such that the control device together with the electrical drive counteracts a deflection or bending of the connector piece.

A motorised kart (10) has a chassis (12), a front wheel axle (14), an engine (16) mounted to the chassis and a transmission to transmit drive from the engine to the front wheel axle. The transmission includes a differential unit (20).

Lifting transporter devices, and associated systems and methods are disclosed herein. Representative devices can have a plank-like configuration, with multiple devices fitting under a load to lift and move the load. A representative device includes an elongated body and a pair of drive trucks carried by the elongated body and positioned toward opposite ends of the elongated body. Each drive truck can include a pair of drive wheels and a lift device positioned and actuatable to raise the body between a first position and a second position. The device can further include one or more outrigger assemblies positioned between the drive trucks and having casters positioned laterally outwardly from the drive trucks. The casters are positionable to engage a surface on which the drive trucks are supported when the lift devices are in the first position, and disengage from the surface when the lift devices are in the second position.

A drive assembly for a kart, and a kart including the assembly is disclosed. The assembly includes an electric motor including an output shaft; an assembly housing surrounding the motor, the housing defining an aperture; an intermediate shaft rotatably disposed within the assembly housing; a driving gear removably disposed on the output shaft within the housing; a reduction gear removably disposed on the intermediate shaft within the housing; and a panel removably connected to the housing for selectively covering the aperture, the driving gear and the reduction gear being removable from the motor and the housing via the aperture when the panel is removed from the housing, the panel, the driving gear, and the reduction gear being disposed above a maximum level of transmission oil contained within the housing when the motor is not operating. A method of changing a kart transmission ratio is also disclosed.

A utility cart includes a suspension having an integral suspension bracket having an attachment point for a lateral suspension link, holes through which U-bolts are passed to secure an axle of the utility cart to the bracket, and can include an opening into which a spring pin (e.g. a pin of a leaf spring) can be inserted. The suspension bracket can alternatively include a brake cable attachment feature. The suspension bracket can be cut from sheet stock of material, and stamped into final or near final form. In one embodiment a threaded nut can be attached to the attachment point for the lateral suspension link.

A utility cart includes a suspension having an integral perch bracket having a plurality of legs structured to straddle an axle of the utility cart, and can include an opening into which a spring pin (e.g. a pin of a leaf spring) can be inserted. The perch bracket can alternatively include a brake cable attachment feature located on an end of the bracket. In one form the end can extend from one leg and be folded toward an opposing leg. The perch bracket can be cut from sheet stock of material, and stamped into final or near final form. In one embodiment a threaded nut can be attached to the legs of the perch bracket.

A jacking linkage type sixteen-wheel four-way shuttle comprises a support frame, a transverse movement drive mechanism, a longitudinal movement drive mechanism and a cable-stayed reversing jacking mechanism, wherein the transverse movement drive mechanism includes transverse driving wheels, first transverse driven wheels, second transverse driven wheels and third transverse driven wheels; the longitudinal movement drive mechanism includes first longitudinal driving wheels, second longitudinal driving wheels, first longitudinal driven wheels and second longitudinal driven wheels; and, the cable-stayed reversing jacking mechanism includes jacking transverse plates and first/second cable-stayed jacking blocks, in which a ball bearing sleeve is movably arranged in a jacking shaft hole, a cable-stayed jacking pillar is arranged between the front and rear sides of the ball bearing sleeve, and the first/second cable-stayed jacking blocks are connected with each other through a jacking shaft. The shuttle is a sixteen-wheel two-way moving vehicle which is compact, cost-effective and space saving, and which also greatly improves the carrying capacity and obstacle crossing ability.

A cart stabilization system and rolling cart elements for robotic surgery and other medical instrumentation are disclosed. The cart stabilization system includes a base and lifting caster systems coupled to a bottom portion of the base. Each lifting caster system includes a rolling element, a swivel foot assembly moveably coupled to the rolling element; and a hydraulic mounting base coupled to a portion of the swivel foot assembly. Methods of assembling a lifting caster system and for using a cart stabilization system are also disclosed.

The invention discloses a novel power transmission structure suitable for all-terrain karts, comprising a first sprocket support frame, the upper part of the first sprocket support frame is provided with an upper bearing chock of the support frame, and the lower part is provided with a lower bearing chock of the support frame, the engine end output shaft of the engine is connected to the upper bearing chock of the support frame through a suitable coupling and bearing, the engine end output shaft is equipped with a first sprocket and chain mechanism, and the sprocket of the first sprocket and chain mechanism is installed on the sprocket bearing chock.

A driving robot includes a sensor, a loading member configured to load food, a stabilizer provided at a bottom portion of the loading member, the stabilizer including a top plate, a bottom plate, and damping plates provided between the top plate and the bottom plate, the damping plates configured to adjust damping, a driving device including a suspension and a wheel, and a processor configured to control the stabilizer and the suspension based on information of at least one of information associated with the food, information obtained from a driving map or information of surrounding situation detected by the sensor.