The present invention relates to a winch, in particular a luffing winch, with a winch drum, at least one main drive driving the transmission input shaft, and at least one emergency drive driving the transmission input shaft in case of emergency, wherein at least one emergency drive can be coupled to the driven wheel of the transmission input shaft as required via at least one intermediate gear. The present invention furthermore is directed to a construction machine or a lifting device with at least one such winch.

A winch assembly for moving a first fifth wheel outwardly from a first trailer and engaging a king pin on a second trailer. The winch assembly includes a pair of parallel, spaced apart rails mounted on the underside of the first trailer. A slide out frame is mounted between the rails and attached to a front axle and a real axle, with wheels. The slide out frame includes the first fifth wheel adapted for engaging the king pin on the front of a second trailer. The first fifth wheel is attached to a pair of first cables on winch drums, driven by winch motors. The winch motors are used for rotating cable drums for retracting the first fifth wheel along a length of the trailer. Also, a pair of second cables on winch drums, driven by winch motors, are attached to the slide out frame. The second cables are used to extend the first fifth wheel outwardly from the rear of the first trailer for engaging the fifth wheel to the second trailer.

A winch assembly for moving a first fifth wheel outwardly from a first trailer and engaging a king pin on a second trailer. The winch assembly includes a pair of parallel, spaced apart rails mounted on the underside of the first trailer. A slide out frame is mounted between the rails and attached to a front axle and a real axle, with wheels. The slide out frame includes the first fifth wheel adapted for engaging the king pin on the front of a second trailer. The first fifth wheel is attached to a pair of first cables on winch drums, driven by winch motors. The winch motors are used for rotating cable drums for retracting the first fifth wheel along a length of the trailer. Also, a pair of second cables on winch drums, driven by winch motors, are attached to the slide out frame. The second cables are used to extend the first fifth wheel outwardly from the rear of the first trailer for engaging the fifth wheel to the second trailer.

A pneumatic and manual clutch of a power winch provides an option of controlling the clutch by a manual or pneumatic method. The pneumatic control method just needs to connect a pump connector of an air pump to a pneumatic connector of the clutch properly to start or stop the air pump even when a user is standing at a position far from the power winch and the clutch can be turned on and off by starting or stopping the air pump. Either a cable or wireless remote control can be used to start or stop the air pump, to provide a very convenient operation.

A pneumatic and manual clutch of a power winch provides an option of controlling the clutch by a manual or pneumatic method. The pneumatic control method just needs to connect a pump connector of an air pump to a pneumatic connector of the clutch properly to start or stop the air pump even when a user is standing at a position far from the power winch and the clutch can be turned on and off by starting or stopping the air pump. Either a cable or wireless remote control can be used to start or stop the air pump, to provide a very convenient operation.

A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like in a performance environment. The hoist system may be adapted with safety mechanisms including an overload sensor and/or a slack line detector. The system may be provided in the form of a point hoist. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. Additional features include various cable management systems and trim adjustment mechanisms for use with the hoist system.

A winch includes a motor having a motor housing including a motor case and an integrated first drum support attached to the motor case for closing an end of the motor case. A gear reduction unit is drivingly attached to the motor and has a gear housing including a gear case and second drum support attached to the gear case. A tie plate is connected to the first and second drum supports. A control unit is removably mounted to the tie plate. A rotatable drum is supported by the first and second drum supports.

A winch includes a motor having a motor housing including a motor case and an integrated first drum support attached to the motor case for closing an end of the motor case. A gear reduction unit is drivingly attached to the motor and has a gear housing including a gear case and second drum support attached to the gear case. A tie plate is connected to the first and second drum supports. A control unit is removably mounted to the tie plate. A rotatable drum is supported by the first and second drum supports.

The invention relates to an abseiling device comprising a bidirectionally rotatable guiding arrangement (25) for guiding a pulling means (26); further comprising a braking mechanism (30) that is coupled to the guiding arrangement (25); a driving means (34; 35) can be connected to the guiding arrangement (25) so as to actuate the guiding arrangement (25). In order to create an abseiling device that prevents an individual from being injured or parts of the abseiling device from being damaged during rescue operations in particular of people, a mechanical torque limiter (33) decouples the driving means (34; 35) and the guiding arrangement (25) or the pulling means (26) when the torque exceeds a certain threshold value.

The invention relates to an abseiling device comprising a bidirectionally rotatable guiding arrangement (25) for guiding a pulling means (26); further comprising a braking mechanism (30) that is coupled to the guiding arrangement (25); a driving means (34; 35) can be connected to the guiding arrangement (25) so as to actuate the guiding arrangement (25). In order to create an abseiling device that prevents an individual from being injured or parts of the abseiling device from being damaged during rescue operations in particular of people, a mechanical torque limiter (33) decouples the driving means (34; 35) and the guiding arrangement (25) or the pulling means (26) when the torque exceeds a certain threshold value.