A socket spanner insert releases or fastens wheel bolts which in the mounted state rest inside wheel bolt holes of a car rim. The socket spanner insert includes a base body which has a screw head receptacle and a tool receptacle, and a sleeve which encompasses the base body at least in portions and is rotatably connected to the base body. In order to prevent damage to the rims when mounting and removing wheel bolts, a retaining element is provided which, during release or fastening of the wheel bolt, blocks a relative rotational movement of the sleeve with respect to the car rim and allows a rotation of the base body within the sleeve.

A reduction drive including an electric motor disposed in a housing and driving a motor shaft, a Hall Effect sensor adjacent to the motor, a power and control module, and a pinion gear in the housing and driven by the motor shaft. A planetary gear reduction assembly includes a first ring gear rotatably disposed in the housing and driven by the pinion gear, a sun gear engaged to and driven by the first ring gear, a second ring gear non-rotatably fixed to a housing surface, and a plurality of planet gears mounted on a carrier assembly, each planet gear rotating with the sun gear, and on the second ring gear. An output axle is driven by the carrier assembly and has an axis of rotation that is offset from and parallel to the motor shaft axis of rotation.

The embodied invention is a two tire lift tower and platform that is movable on castors. A motorized belt system is used to lift the tires. The belt system is mounted on each tower and is connected to a horizontal tire lifting bar. It is designed for portability by using a rechargeable battery is mounted on a rotating frame that allows each tire to be lifted separately. Simple buttons operate the tire belt lifting design that also allows for motor speed control to be adjusted by the operator. The dual belt system ensures that the horizontal lift bar is adequately maintained in a horizontal orientation. The maintenance of the unit is relatively simple due to the simplified design.

The embodied invention is a two tire lift tower and platform that is movable on castors. A motorized belt system is used to lift the tires. The belt system is mounted on each tower and is connected to a horizontal tire lifting bar. It is designed for portability by using a rechargeable battery is mounted on a rotating frame that allows each tire to be lifted separately. Simple buttons operate the tire belt lifting design that also allows for motor speed control to be adjusted by the operator. The dual belt system ensures that the horizontal lift bar is adequately maintained in a horizontal orientation. The maintenance of the unit is relatively simple due to the simplified design.

In a propulsion device including a main wheel having a plurality of driven rollers fitted on and arranged circumferentially along an annular core member so as to be rotatable around tangential lines of the annular core member at respective positions thereof on the annular core member, a pair of drive disks positioned on either side of the main wheel in an individually rotatable manner, a plurality of drive rollers supported along an outer periphery of each drive disk so as to be each rotatable around a rotational center line extending in a skewed relationship to a rotational center line of the corresponding drive disk, and a drive unit for individually rotatively driving the drive disks, a plurality of guide rollers are rotatably supported by a body frame and engage at least one driven roller not engaged by any of the drive rollers from either side.

In a propulsion device including a main wheel having a plurality of driven rollers fitted on and arranged circumferentially along an annular core member so as to be rotatable around tangential lines of the annular core member at respective positions thereof on the annular core member, a pair of drive disks positioned on either side of the main wheel in an individually rotatable manner, a plurality of drive rollers supported along an outer periphery of each drive disk so as to be each rotatable around a rotational center line extending in a skewed relationship to a rotational center line of the corresponding drive disk, and a drive unit for individually rotatively driving the drive disks, a plurality of guide rollers are rotatably supported by a body frame and engage at least one driven roller not engaged by any of the drive rollers from either side.

A load balancer includes an articulating assembly connected with a support mechanism. The articulating assembly is connected to a support assembly where the support assembly is able to secure a load thereto. The articulating assembly articulates the support assembly and thereby the load between a first position and a second position. The articulating assembly includes at least one linkage assembly interposed between the attachment member and the support assembly. The at least one linkage assembly includes an arm and an actuator where the actuator is selectively pivotable relative to the arm. The load balance and the load together have a center of gravity. The center of gravity remains substantially aligned with an attachment to the support mechanism during the articulation of the support assembly between the first position and the second position.