An improved remote sling release for a crane has a main plate member including an access hole for attaching a main crane hoisting line therethrough, a hook portion located at an opposite end from the access hole and adapted to selectively hold securely or release sling members thereon. Two sling ejector plate members connected to one another such that the ejector plate members are pivotally attached to the main plate member, wherein each of the sling ejector plate member has a sling notch therein adapted to receive the sling members of a hoist pallet therein. A sling access handle member attached to at least one of the sling ejector plate members and used to manually rotate the ejector plate members from an open position for receiving the sling members therein and into a closed position, wherein the sling member are locked upon the hook portion of the main plate member. A remotely controlled solenoid mechanism attached to the main plate member and adapted to unlock the locking mechanism, and a first traction spring member adapted to bias the ejector plate members into the open position and force the sling members off of the hook portion. A remote control mechanism adapted to remotely activate the solenoid mechanism, to force the sling members off of the hook portion.

According to embodiments, an overhead lift includes a lift actuator; and a control system communicatively coupled to the lift actuator. The control system may include a control unit comprising a processor with a memory communicatively coupled to the processor and having computer readable and executable instructions and at least one transceiver communicatively coupling the control unit to at least one of a computer, a network, and a data storage device. The processor executes the computer readable and executable instructions to: determine at least one operating characteristic of the overhead lift and an operating time of the overhead lift as the overhead lift is actuated; determine an accumulated load-time parameter for the overhead lift based on the at least one operating characteristic and the operating time; and upload the accumulated load-time parameter to at least one of the computer, the network, and the data storage device.

The invention relates to a method for monitoring a working machine, in particular a crane, which is equipped with two or more individual elements for use when in operation, wherein a working machine monitoring means unambiguously identifies one or more elements equipping the machine and determines their times of operation, and the determined time of operation of at least one of the element is transmitted together with identification information to storage means for establishing an operation log of the element.

A crane control for a crane includes a visualization apparatus which is adapted to generate a stereoscopically visualized camera image having depth information of a working environment of the crane for an operator of the crane control. The visualization apparatus is configured to generate in a representation overlying the camera image a graphic auxiliary representation representing a dimension which can be recognized per se in the camera image. Furthermore, the visualization apparatus includes a display device which displays the stereoscopically visualized camera image together with the overlying graphic auxiliary representation.

The present invention addresses the problem of providing a crane that can ascertain the state of an area surrounding a hook or a cargo suspended on the hook and that can simultaneously ascertain a braking distance during stopping operations. The invention comprises: drive devices 31-34 that move a boom 7; a control apparatus 20 that controls the operation state of the drive devices 31-34; a camera 41 that photographs, from the distal end portion of the boom 7, an area below said portion; and image display devices 43 and 65 that display the image photographed by the camera 41. For the purpose of stopping the movement of the boom 7, the control apparatus 20 filters basic control signals S for the drive devices 31-34 to create filtered control signals Sf, controls the drive devices 31-34 on the basis of the filtered control signals Sf, estimates the braking distance for the boom 7, and displays the same on the image display devices 43 and 65.

A sensing device for a crane for detecting unsafe operating conditions including an inertial measurement unit for measuring pitch and yaw of a hook of a crane attached to a load. The inertial measurement unit is adapted to measure deviation of the hook of the crane from a plumb position and activate an alert element if the deviation of the hook exceeds a predetermined limit.

A davit assembly comprises a vertical structural column connecting a horizontal structural beam between a longer forward beam portion and a shorter rearward beam portion thereof, an angled support brace tensioned between a lower region of the structural column and an end of the shorter rearward beam portion and a primary rigging anchor slidably engaging the forward beam portion.

A system includes a hoist drive mechanism that elevates and lowers a load hook from a boom and a detector that provides obstacle location and identification information. A processor receives the obstacle location and identification information from the detector and provides obstacle avoidance data in response thereto.

A control stand is disclosed for controlling a crane, an excavator, a crawler, or a similar construction machine having a seat, control elements actuable from the seat for inputting control commands, a display apparatus for displaying information, and a control unit for generating adjustment signals in dependence on input control commands and/or for providing information to the display apparatus. A crane is disclosed having such a control stand that can be configured in the form of a crane operator's cabin. The control elements and/or the display apparatus of the control stand and various further auxiliary units can be individually configurable. Personal pre-settings can be saved and can be reinvoked when the control stand or the crane is to be controlled by a certain machine operator.

A crane or mobile crane includes a crane base, a crane jib to be slewed relative to the base about a slewing axis vertically oriented in normal operating state. A counterweight carrier coupled to the crane jib slews therewith and carries counterweight modules in normal operating state. An anti-collision sensor system monitors the presence of an object within a slewing range ahead being passed through by the counterweight carrier and/or counterweight modules in the future during normal operation as the crane jib slews. A control unit linked to the anti-collision sensor system for signal transmission is configured to determine, based on sensor signals transmitted by the anti-collision sensor system, whether an object is present in the slewing range ahead, to determine whether the object can lead to a collision with the counterweight carrier or one counterweight module, and to take a countermeasure upon a collision.