A stationary type caring lift includes a base plate arranged on a floor part at each of head and foot sides of a bed for a care receiver along each short-side side of the bed, four supports erected on the base plates in the vicinity of four corners of the bed, a pair of guide rails supported above the bed by the four supports and arranged in parallel along both long-side sides of the bed, a longitudinally moving body arranged between the guide rails and capable of being moved in a longitudinal direction of the bed while being guided by the guide rails, a slide rail attached movably, a laterally moving body attached movably in the lateral direction of the bed, and a lifting drive mechanism attached in the laterally moving body for hanging down the care receiver and having a worm reduction gear with a self-lock function.

An overhead crane supported by a derrick, comprising a frame coupled to the derrick and comprising a pair of rail members and a bridge member coupled between the rail members, and a trolley coupled to the frame and comprising a fairlead assembly and a cable guide movable in an X-Y plane within an inner perimeter of the frame.

An overhead crane supported by a derrick, comprising a frame coupled to the derrick and comprising a pair of rail members and a bridge member coupled between the rail members, and a trolley coupled to the frame and comprising a fairlead assembly and a cable guide movable in an X-Y plane within an inner perimeter of the frame.

A self-maintaining crane system including a bridge, a trolley, a hoist, and sensors for use within a hostile environment, such as a wastewater treatment facility, is presented. The bridge is movable along a pair of runway rails within the hostile environment. The trolley is movable between the runway rails. The hoist with extendable-retractable cable is movable with the trolley. Bridge sensors separately determine whether the bridge has engaged a bridge home position and a bridge end position. The bridge is movable away from the bridge home position and back toward the bridge end position. Trolley sensors separately determine whether the trolley has engaged a trolley home position and a trolley end position. The trolley is movable away from the trolley home position and back toward the trolley end position. Hoist sensors separately determine whether the cable has engaged a hoist home position and a hoist end position. The cable is extendable away from the hoist home position and retractable toward the hoist end position. Sensors facilitate automated movement of bridge, trolley, and cable so as to minimize functional impairment of the crane system by the hostile environment.

A self-maintaining crane system including a bridge, a trolley, a hoist, and sensors for use within a hostile environment, such as a wastewater treatment facility, is presented. The bridge is movable along a pair of runway rails within the hostile environment. The trolley is movable between the runway rails. The hoist with extendable-retractable cable is movable with the trolley. Bridge sensors separately determine whether the bridge has engaged a bridge home position and a bridge end position. The bridge is movable away from the bridge home position and back toward the bridge end position. Trolley sensors separately determine whether the trolley has engaged a trolley home position and a trolley end position. The trolley is movable away from the trolley home position and back toward the trolley end position. Hoist sensors separately determine whether the cable has engaged a hoist home position and a hoist end position. The cable is extendable away from the hoist home position and retractable toward the hoist end position. Sensors facilitate automated movement of bridge, trolley, and cable so as to minimize functional impairment of the crane system by the hostile environment.

A self-maintaining crane system including a bridge, a trolley, a hoist, and sensors for use within a hostile environment, such as a wastewater treatment facility, is presented. The bridge is movable away from the bridge home position and back toward the bridge end position. The trolley is movable away from the trolley home position and back toward the trolley end position. The cable is extendable away from the hoist home position and retractable toward the hoist end position. The sensors separately determine whether the bridge, trolley, and cable engage a home position and end position. Sensors facilitate automated movement of bridge, trolley, and cable so as to minimize functional impairment of the crane system by the hostile environment.

A self-maintaining crane system including a bridge, a trolley, a hoist, and sensors for use within a hostile environment, such as a wastewater treatment facility, is presented. The bridge is movable away from the bridge home position and back toward the bridge end position. The trolley is movable away from the trolley home position and back toward the trolley end position. The cable is extendable away from the hoist home position and retractable toward the hoist end position. The sensors separately determine whether the bridge, trolley, and cable engage a home position and end position. Sensors facilitate automated movement of bridge, trolley, and cable so as to minimize functional impairment of the crane system by the hostile environment.

A rope hoist which hoists and lowers a cargo via a wire rope includes: a frame structure which rotatably supports a wheel; a rope drum mechanism which is provided on one side of the frame structure in a width direction, and includes a drum motor which rotates the rope drum; a counterweight which is provided on another side of the frame structure in the width direction and is arranged in a state of having a space with respect to the frame structure; and a control unit which is attached to a side of the counterweight opposite to the rope drum mechanism in the width direction and inverter-controls the drum motor, to the rope drum mechanism side of the counterweight, a braking resistor part which processes regenerative electric power in the inverter control is attached in a state of being located in the space.

A rope hoist which hoists and lowers a cargo via a wire rope includes: a frame structure which rotatably supports a wheel; a rope drum mechanism which is provided on one side of the frame structure in a width direction, and includes a drum motor which rotates the rope drum; a counterweight which is provided on another side of the frame structure in the width direction and is arranged in a state of having a space with respect to the frame structure; and a control unit which is attached to a side of the counterweight opposite to the rope drum mechanism in the width direction and inverter-controls the drum motor, to the rope drum mechanism side of the counterweight, a braking resistor part which processes regenerative electric power in the inverter control is attached in a state of being located in the space.

A motorized container carrier can be configured to travel along a suspended railway. The motorized container carrier can include at least one motorized trolley configured to move the motorized container carrier along the suspended railway. The motorized container carrier can include a plurality of end beams with container engagement devices configured to interact with containers of various lengths. In some embodiments, the container engagement devices are twist locks. The motorized container carrier can include a system of bumpers and/or guide wheels.