A trailer for towing by a power vehicle is provided and generally includes a frame and a tandem wheel assembly. The frame forms an undercarriage chassis which the tandem wheel assembly is positioned there under. The undercarriage chassis includes a rear wheel assembly, a front wheel assembly, and an extension assembly moving the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to equally support the undercarriage chassis.

A work vehicle includes a main body frame and left and right axle drive devices that drive left and right rear wheels. The axle drive devices include left and right electric motors that are housed and fixed in a motor housing that is fixed to the main body frame and left and right gear mechanisms that are housed in gear housings that are fixed to left and right ends of the motor housing and are connected to the respective electric motors to transmit power. A motor shaft of each of the electric motors rotates the corresponding wheel via the corresponding axle-integrated rotating member including the axle. The motor shaft is also arranged to overlap, along the axial direction, with an inner portion of a circumscribing circle of a maximum outer diameter portion of the corresponding axle-integrated rotating member.

A work vehicle includes a main body frame and left and right axle drive devices that drive left and right rear wheels. The axle drive devices include left and right electric motors that are housed and fixed in a motor housing that is fixed to the main body frame and left and right gear mechanisms that are housed in gear housings that are fixed to left and right ends of the motor housing and are connected to the respective electric motors to transmit power. A motor shaft of each of the electric motors rotates the corresponding wheel via the corresponding axle-integrated rotating member including the axle. The motor shaft is also arranged to overlap, along the axial direction, with an inner portion of a circumscribing circle of a maximum outer diameter portion of the corresponding axle-integrated rotating member.

A trailer for towing a power vehicle is provided and generally includes a frame and a self propelled tandem wheel assembly. The frame includes an undercarriage chassis, and the self propelled tandem wheel assembly is positioned under the undercarriage chassis. The self propelled tandem wheel assembly includes a rear wheel assembly and a front wheel assembly, and the rear wheel assembly and the front wheel assembly are equally positioned to support the undercarriage chassis.

An integrated drive system that includes a motor having a housing and an output shaft is disclosed. The integrated drive system further includes a planetary gear transmission mechanism having a first-stage planetary gear mechanism and a second-stage planetary gear mechanism. The first output torque of the first-stage planetary gear mechanism is transmitted to a driven object. The second output torque of the first-stage planetary gear mechanism is transmitted to the second-stage planetary gear mechanism. And the third output torque of the second-stage planetary gear mechanism is transmitted to the driven object. An electric vehicle that includes the described integrated drive system is also disclosed.

The wheel assembly includes an arm 51, a wheel 55, a power supply port 60, an electric motor 56 coupled to the wheel 55, and a motor controller 62 for controlling rotation of the electric motor 56. The method of controlling the motion of a motorised object includes defining a target position, sensing a current position of the motorised object and using an output from a processor to control the electric motors to drive the object toward the target position. The golf club storage and transport device 70 includes a body 71 for storing golf clubs and a pair of releasable wheels 75. The device 70 has an assembled configuration and a disassembled configuration.

The wheel assembly includes an arm 51, a wheel 55, a power supply port 60, an electric motor 56 coupled to the wheel 55, and a motor controller 62 for controlling rotation of the electric motor 56. The method of controlling the motion of a motorised object includes defining a target position, sensing a current position of the motorised object and using an output from a processor to control the electric motors to drive the object toward the target position. The golf club storage and transport device 70 includes a body 71 for storing golf clubs and a pair of releasable wheels 75. The device 70 has an assembled configuration and a disassembled configuration.

“An actuating device comprises a speed reducer, a fixing member, and a driven member. The speed reducer has an input side, a rotation portion, and an output side. The input side and the output side are respectively arranged at two sides of the rotation portion in an axial direction thereof. The input side or the output side of the speed reducer is fixed at the fixing member. The driven member may be a tire and covered an outer peripheral of the rotation portion. The width of the actuating device becomes thinner and the volume of the actuating device becomes small to make it install to a targeting object (automatic guided vehicle) much easier.”

“An actuating device comprises a speed reducer, a fixing member, and a driven member. The speed reducer has an input side, a rotation portion, and an output side. The input side and the output side are respectively arranged at two sides of the rotation portion in an axial direction thereof. The input side or the output side of the speed reducer is fixed at the fixing member. The driven member may be a tire and covered an outer peripheral of the rotation portion. The width of the actuating device becomes thinner and the volume of the actuating device becomes small to make it install to a targeting object (automatic guided vehicle) much easier.”

The invention proposes a method of supplying with hydraulic fluid a hydraulic motor (2) of a drive wheel supporting a vehicle by means of a cylinder-type suspension system (1). The hydraulic fluid passes through a feed duct (25) extending longitudinally through a cylinder (3) of the cylinder-type suspension system (1). The invention also relates to the use thereof in order to eliminate the need for hoses.