A truck crane adapter can be used to selectively secure a variety of truck cranes to a gooseneck hitch of a pickup truck. The truck crane adapter can also be configured to prevent or minimize damage to the bed of a pickup truck even when the truck crane is used to lift heavy loads.

A lifting device for use in lifting towable irrigation towers mounted on an all terrain vehicle (ATV). The lifting device having a support frame fitted beneath the ATV, a parallelogram linkage attached to the support frame operable with a hydraulic cylinder between a collapsed and upright position with saddles on an upper rail for lifting an axle of the tower such that the tower wheels can be rotated, a winch for raising and lowering the support frame and a suspension limiter for stopping movement of the support frame in the up position such that the frame does not damage the underside of the ATV.

A lifting system for a vehicle including a powered winch, a telescopic hoist, jib, or arm and an attachment means on the vehicle for allowing the hoist arm to be pivotally adjusted. The attachment means is provided as a mounting plate which is mounted beneath the vehicle. The mounting plate includes receiving sections that receive a bottom distal end of the telescopic hoist arm. The hoist arm then upwardly extends from the bottom of the mounting plate and is supported to the vehicle using straps. Furthermore, the winch is provided as an integral part of the vehicle which is then fed through to the hoist arm an received by a pulley member located on a distal top end of the hoist arm. The winch is then secured to an anchor which is adapted to receive a load to be transported by the lifting system.

A lifting system for a vehicle including a powered winch, a telescopic hoist, jib, or arm and an attachment means on the vehicle for allowing the hoist arm to be pivotally adjusted. The attachment means is provided as a mounting plate which is mounted beneath the vehicle. The mounting plate includes receiving sections that receive a bottom distal end of the telescopic hoist arm. The hoist arm then upwardly extends from the bottom of the mounting plate and is supported to the vehicle using straps. Furthermore, the winch is provided as an integral part of the vehicle which is then fed through to the hoist arm an received by a pulley member located on a distal top end of the hoist arm. The winch is then secured to an anchor which is adapted to receive a load to be transported by the lifting system.

A method for determining stability of a vehicle having a load suspended from the vehicle is provided. The method can include obtaining measurements from a plurality of sensors positioned on the vehicle, obtaining a measurement from a vehicle accelerometer operative to determine an inclination of the vehicle, determining a position of the load suspended from the vehicle, determining a slung load of the load suspended from the vehicle, using the determined slung load and the determined position of the load suspended from the vehicle, determining tipping moments acting on the vehicle, determining righting moments acting on the vehicle and determining a tipping stability based on the determined tipping moments and determined righting moments.

A method for determining stability of a vehicle having a load suspended from the vehicle is provided. The method can include obtaining measurements from a plurality of sensors positioned on the vehicle, obtaining a measurement from a vehicle accelerometer operative to determine an inclination of the vehicle, determining a position of the load suspended from the vehicle, determining a slung load of the load suspended from the vehicle, using the determined slung load and the determined position of the load suspended from the vehicle, determining tipping moments acting on the vehicle, determining righting moments acting on the vehicle and determining a tipping stability based on the determined tipping moments and determined righting moments.

A balanced lifting device comprises at least two lifting arms arranged opposite to each other, each lifting arm comprises a balance arm and an actuating arm driving the balance arm to move, the balance arm is rotatably connected to the actuating arm at a rotatably connected part, and a first drive device is arranged between the balance arm and the actuating arm to drive the balance arm to a horizontal state throughout the lifting process. A vehicle-mounted exchange box system and a multi-oil cylinder synchronization method are also provided in the present invention. A cargo box may be lifted stably to improve the operation safety, the vehicle utilization rate is improved by saving the waiting time for loading and unloading in the transfer process.

A balanced lifting device comprises at least two lifting arms arranged opposite to each other, each lifting arm comprises a balance arm and an actuating arm driving the balance arm to move, the balance arm is rotatably connected to the actuating arm at a rotatably connected part, and a first drive device is arranged between the balance arm and the actuating arm to drive the balance arm to a horizontal state throughout the lifting process. A vehicle-mounted exchange box system and a multi-oil cylinder synchronization method are also provided in the present invention. A cargo box may be lifted stably to improve the operation safety, the vehicle utilization rate is improved by saving the waiting time for loading and unloading in the transfer process.

A lift for a motorcycle, with the lift being useable with a hitch receiver. The lift comprises a connector engageable with the hitch receiver, and a guide rail having a first end portion coupled to the connector and a second end portion opposite the first end portion. A carriage is operatively coupled to the guide rail and is traversable between a first position and a second position, the carriage moving toward the second end portion of the guide rail as the carriage moves from the first position toward the second position. A platform is coupled to the carriage and is engageable with the motorcycle and capable of supporting the weight of the motorcycle when engaged therewith and as the carriage is moved from the first position toward the second position, causing the motorcycle to be lifted from the ground.

A crane arrangement includes a base, a pillar boom, a lifting boom, a folding boom, a lifting cylinder, and a folding cylinder. The lifting boom includes a first pivot point for connecting the pillar boom to the lifting boom, a second pivot point for connecting the lifting cylinder to the lifting boom, and a third pivot point for connecting the folding cylinder to the lifting boom. The lifting boom further includes a hollow cast connecting piece arranged at the first end of the lifting boom, in which connecting piece at least the first pivot point and second pivot point are arranged. The invention also relates to a corresponding work machine.