The improved motorized gearbox mechanism of the present invention includes a plurality of cam-actuated gear block assemblies, which transfer power from an integral rotor and stator assembly contained in a cam/rotor assembly, to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. When energized, the stator assembly interacts with the rotor assembly inducing the cam/rotor assembly to rotate about its central axis, thereby driving the output gear element via the plurality of cam-actuated gear block assemblies. The motorized gearbox mechanism may be powered electrically, hydraulically, pneumatically or by steam, or any conventional power source that can be adapted to use an integral stator/rotor assembly configured in the cam assembly body to generate rotative power in the cam/rotor assembly.

A ball screw device includes a screw shaft, a nut, a ball train including a plurality of main balls, and a plurality of coil springs disposed in the ball train. The nut moves from a first axial side to a second axial side while an axial force is applied to the nut by rotation of the screw shaft. The plurality of coil springs are more densely arranged on the first axial side than on the second axial side in the ball train.

A gear assembly for a seat adjuster includes a gear housing, a worm gear, a helical gear meshed with the worm gear, a wobble gear carried on an eccentric lobe of the helical gear, a pinion disc, a first ring gear disposed in the gear housing, a second ring gear disposed in the pinion disc, and a pinion member carrying the helical gear and the pinion disc. The wobble gear includes first and second sets of wobble gear teeth that mesh with the first and second ring gears, respectively. A housing side gear ring disposed in the gear housing defines part of the first ring gear and the gear housing defines another part of the first ring gear. A pinion disc gear ring disposed in the pinion disc defines part of the second ring gear and the pinion disc defines another part of the second ring gear.

This invention provides output gain by rotating a solid wheel from the center of mass as an input and connecting a lever to the edge of the same wheel at 180 degrees apart to each other. Each lever is connected at 180 degrees apart at the input rotating wheel with a common fulcrum located near the output side. This lever, acting as a mechanical lifting device, drives one side of output gain driven by the ratio of the length of lever to and from fulcrum between input and output while the other side is provided by another lever at 180 degrees apart. A unidirectional rotor converts the lever motion of up and down to a rotational motion. Weight of materials in a system is recycled back as an input to a hydraulic lever that generates hydraulic pressure driven by the movement of the system weight as it bounces off the surface.

The improved motorized gearbox mechanism of the present invention includes a plurality of cam-actuated gear block assemblies, which transfer power from an integral rotor and stator assembly contained in a cam/rotor assembly, to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. When energized, the stator assembly interacts with the rotor assembly inducing the cam/rotor assembly to rotate about its central axis, thereby driving the output gear element via the plurality of cam-actuated gear block assemblies. The motorized gearbox mechanism may be powered electrically, hydraulically, pneumatically or by steam, or any conventional power source that can be adapted to use an integral stator/rotor assembly configured in the cam assembly body to generate rotative power in the cam/rotor assembly.

This invention provides output gain by rotating a solid wheel from the center of mass as an input and connecting a lever to the edge of the same wheel at 180 degrees apart to each other. Each lever is connected at 180 degrees apart at the input rotating wheel with a common fulcrum located near the output side. This lever, acting as a mechanical lifting device, drives one side of output gain driven by the ratio of the length of lever to and from fulcrum between input and output while the other side is provided by another lever at 180 degrees apart.

A unidirectional rotor converts the lever motion of up and down to a rotational motion.

Weight of materials in a system is recycled back as an input to a hydraulic lever that generates hydraulic pressure driven by the movement of the system weight as it bounces off the surface.

The improved motorized gearbox mechanism of the present invention includes a plurality of cam-actuated gear block assemblies, which transfer power from an integral rotor and stator assembly contained in a cam/rotor assembly, to a secondary or output gear element. Each gear block assembly includes a gear block having a surface that periodically interfaces with a secondary or output gear element. When energized, the stator assembly interacts with the rotor assembly inducing the cam/rotor assembly to rotate about its central axis, thereby driving the output gear element via the plurality of cam-actuated gear block assemblies. The motorized gearbox mechanism may be powered electrically, hydraulically, pneumatically or by steam, or any conventional power source that can be adapted to use an integral stator/rotor assembly configured in the cam assembly body to generate rotative power in the cam/rotor assembly.

An engagement chain has two chain members. Each of the chain members includes link plates, each of which has two pin holes, and coupling pins. The two pin holes are aligned in the advancing/retreating direction and are sized differently from each other. Each of the coupling pins of each chain member is tightly received in the smaller pin hole of the two pin holes of one of any adjacent two of the link plates in the advancing/retreating direction and is loosely received in the larger pin hole of the two pin holes of the other one of the two adjacent link plates. In a state in which the chain members are integrated with each other, any two of the coupling pins that are opposed to each other are in the same received states in the corresponding pin holes.

An electromotive furniture drive with a guide path and an output unit which moves along the guide path and which at least partly surrounds the guide path. The guide path has a gear rack, and the output unit has a drive motor with a speed-reducing mechanism and an output gear which is in engagement with the gear rack of the guide path.

A driving module including a driving source configured to generate power, a rotary rod connected to the driving source to rotate by receiving the power from the driving source, a power conversion block coupled with the rotary rod to be straight-line-driven in a longitudinal direction of the rotary rod in response to a rotation of the rotary rod, and a power transmission unit configured to operate in response to a driving of the power conversion block is disclosed.