Abstract: A crane control for a crane includes at least one operating unit operable by an operator for controlling working functions of the crane. Control signals can be input to actuators of the crane by the operating unit, and a mounting arrangement is provided for mounting the operating unit in a driving cab of the vehicle and a support arrangement connects the operating unit to the mounting arrangement. The support arrangement for the operating unit is supported limitedly moveably between at least two positions, a first position of which is in the form of a working position in which the operating unit is between a steering arrangement of the vehicle and a driving seat, and a second position of which is in the form of a storage position in which the operating unit is moved away from the steering arrangement of the vehicle.

Abstract: A hydraulic rotational drive for rotating load-handling equipment relative to a crane arm includes a shaft, which has a first securing element for connecting the shaft to the load-handling equipment or the crane arm, a shaft bearing, which has second securing element for connecting the shaft bearing to the crane arm or the load-handling equipment, vanes arranged in the shaft which can be acted on by oil via an oil feed, and an oil discharge for the transmission of a torque to the shaft. The rotational drive also has a rotary encoder for the detection of the angular position of the shaft relative to the shaft bearing.

Abstract: A crane control for a crane includes at least one operating unit operable by an operator for controlling working functions of the crane. Control signals can be input to actuators of the crane by the operating unit, and a mounting arrangement is provided for mounting the operating unit in a driving cab of the vehicle and a support arrangement connects the operating unit to the mounting arrangement. The support arrangement for the operating unit is supported limitedly moveably between at least two positions, a first position of which is in the form of a working position in which the operating unit is between a steering arrangement of the vehicle and a driving seat, and a second position of which is in the form of a storage position in which the operating unit is moved away from the steering arrangement of the vehicle.

Abstract: A hydraulic rotational drive for rotating load-handling equipment relative to a crane arm is provided with a shaft, which has first securing means for connecting the shaft to the load-handling equipment or the crane arm, a shaft bearing, which has second securing means for connecting the shaft bearing to the crane arm or the load-handling equipment, vanes arranged in the shaft which can be acted on by oil via an oil feed and an oil discharge for the transmission of a torque to the shaft, wherein the rotational drive has a rotary encoder for the detection of the angular position of the shaft relative to the shaft bearing.

Abstract: A crane including a crane arm with a crane tip and an implement arrangeable on the crane tip. The at least one part of the implement is movable in relation to the crane tip. A crane controller controls the crane arm and the at least one part of the implement. The crane controller can issue control commands by a user for movement of the crane arm and for movement of the at least one part of the implement. With an implement on the crane tip, when predetermined control commands are issued by a user for movement of the at least one part of the implement arranged on the crane tip, additional control commands for movement of the at least one crane arm can be given off by the crane controller to at least partially compensate for the movement of the at least one part of the implement.

Abstract: A crane, in particular a vehicle crane, includes a first crane arm and at least one second crane arm which are connected together by a joint. The crane arms are pivotable relative to each other by a drive having a piston-cylinder unit, in each case starting from one of the two end positions in which the crane arms are in substantially mutually parallel relationship until reaching a dead point when the longitudinal axis of the piston-cylinder unit is substantially on a line with the joint. There is provided at least one second drive by which it is possible to go beyond the dead point position of the piston-cylinder unit relative to the joint.

Abstract: A pivot joint arrangement is provided for a crane arm having a securing device for operating devices. The arrangement has a pivot joint which has two spaced-apart pivot bearings, at least one of the two pivot bearings having at least two flaps and a bearing pin. One flap is connectable to the crane arm and the other flap is connectable to the securing device, and the bearing pin is connected in a rotationally secure manner to one of the two flaps and rotates relative to the other of the two flaps. At least one swing brake brakes or damps an oscillation of the operating device on the crane arm, the swing brake having a plurality of disc-like brake elements.

Abstract: Telescopic crane arm for a crane, in particular a mobile crane, with: at least one boom, and at least one boom extension that can be moved telescopically relative to the boom, and at least one hydraulic line arranged in the crane arm for an implement that can be attached to the crane arm and operated hydraulically, wherein the hydraulic line has at least one first tube and a second tube that is movable relative to the first tube, wherein a connection is formed from the first tube and/or the second tube to at least one oil compensation chamber arranged in the inside of the crane arm to compensate for effects of changing the length of the crane arm, wherein the first tube, the second tube and the oil compensation chamber are formed in the inside of the boom extension.

Abstract: A crane, in particular a vehicle crane, comprising a first crane arm and at least one second crane arm which are connected together by way of a joint and which are pivotable relative to each other by way of a drive having a piston-cylinder unit, in each case starting from one of the two end positions in which the crane arms are in substantially mutually parallel relationship until reaching a dead point when the longitudinal axis of the piston-cylinder unit is substantially on a line with the joint, wherein there is provided at least one further drive by which it is possible to go beyond the dead point position of the piston-cylinder unit relative to the joint.