DEMAG CRANES & COMPONENTS GMBH Patent applications |
Patent application number | Title | Published |
20140251935 | METHOD AND CONTROL ASSEMBLY FOR OPERATING AT LEAST TWO LIFTING DEVICES, IN PARTICULAR CRANES, IN PARALLEL - A method and control assembly are provided for operating at least two lifting devices, such as cranes, in group and normal operation modes. Each lifting device has a control system connected to a control switch, and the lifting devices are controlled through a common bus. In group operation, the lifting devices are jointly controlled through the bus by one switch. To operate at least two lifting devices in parallel, one of the switches is active in the group operation and the remaining switch or switches are passive. To prepare for group operation, normal operation is deselected by all but one of the control switches to release a remaining switch for log-in to the active state for group operation. To prepare for normal operation, group operation is deselected and normal operation is selected at the active switch before the other switch or switches are released for logging into normal operation. | 09-11-2014 |
20140001137 | CRANE HAVING A CRANE JIB, IN PARTICULAR A BRACKET CRANE | 01-02-2014 |
20140000472 | ARRANGEMENT CONSISTING OF A TRAVELLING GEAR CARRIER AND A RUNNING WHEEL BLOCK FASTENED DETACHABLY THERETO, AND INSTALLATION METHOD THEREFOR | 01-02-2014 |
20130282178 | CONTROL METHOD FOR A BALANCING LIFTING GEAR AND BALANCING LIFTING GEAR - A control method for a balancing lifting gear which includes a lifting motor that can be actuated by a controller and uses a control handle with a force sensor to lift and lower a load-supporting device. In a “Balance” operating mode, the load-supporting device, with or without a picked-up load, is raised or lowered by the controller in response to a force applied by an operator. In order to ensure disturbance-free handling of a load when removing or attaching a load, a “Pick-up” operating mode or an “Assemble” operating mode is selected, in which the load-supporting device is moved independently without the influence of the force of the operator by the controller in the lifting or lowering direction in dependence upon the signals determined by the force sensor. A balancing lifting gear which operates in accordance with the aforementioned control method is also disclosed. | 10-24-2013 |
20130229069 | CIRCUIT ARRANGEMENT HAVING AN EMERGENCY STOP SWITCH OF A HOIST - The invention relates to a circuit arrangement comprising a hoist controller ( | 09-05-2013 |
20130181177 | LIFTING DEVICE WITH A TOOTHED BELT AS SUPPORTING MEANS - The invention relates to a lifting device for lifting and lowering loads with a toothed belt which is driven by an output gear and which is positively engaged with the output gear in a wrapping region. In order to provide an improved lifting device, multiple guiding rollers are fixed to the lifting device in the wrapping region such that said rollers maintain the positive engagement between the toothed belt and the output gear. | 07-18-2013 |
20130167750 | ARRANGEMENT OF A RAIL AND A SLIP CONTACT HOLDER MOUNTED THEREON - An arrangement of a rail for suspended conveyors or suspended cranes and a slip contact holder mounted thereon, wherein the rail comprises a profile body and a profile head connected thereto and disposed above the profile body, wherein the profile body is C-shaped in cross section, forms a hollow space for chassis, and has a slit open to the bottom, and the profile head comprises upper, substantially horizontal profile walls and the slip contact holder is disposed within the hollow space and attached to the upper profile walls. A plurality of punchouts are disposed in the upper profile walls, disposed in at least one row and at regular, repeated distances as seen in the longitudinal direction of the rail, and barb-like catch pawls are disposed on the slip contact bolder and engage with the punchouts in order to attach thereto. | 07-04-2013 |
20130167749 | RAIL FOR SUSPENDED CONVEYORS AND SUSPENDED CRANES - A rail for suspended conveyors and suspended cranes, having a substantially C-shaped profile head for suspending the rail and a profile body connected thereto. The profile head is open at the top, thereby forming a gap running along a longitudinal center plane bounded on both sides by first web segments extending outward from the center plane. Two second web segments opposite each other and running downward and outward as seen in cross section are connected to the first web segments and the rail is made of two profiles disposed symmetrically about the vertical longitudinal center plane as seen in cross section. The rail supports an overload protection in the region of the profile head, and allows simple attachment by suspension supports. In a particular embodiment the first web segments run diagonally outward and upward and the first web segments are angled relative to the longitudinal center plane. | 07-04-2013 |
20130164078 | ARRANGEMENT FOR CONNECTING TWO RAIL SEGMENTS - An arrangement of two rail segments, consisting of at least one mounting element disposed at each rail segment, and of at least one connector in contact with the mounting elements, by means of which the rail segments can be connected to each other at the end faces thereof, wherein each mounting element is attached to the corresponding rail segment by means of a welding seam. In an improved arrangement for connecting rail segments with respect to dynamic loading, at least one end of the welding seam ends in a region on the rail segment outside of the mounting element. | 06-27-2013 |
20130153730 | ARRANGEMENT OF A SUSPENSION AND A RAIL - An arrangement of a suspension and of a rail is provided, in particular for suspending a travel and/or carrier rail or a lifting gear on a chassis or frame, having a tension element supporting the rail at one end thereof in the region of a profile head by a mounting element, with the head being substantially C-shaped in cross section, and forming a gap running at the top along a longitudinal center plane of the rail. The mounting element comprises a pivotable part that can be pivoted with respect to the tension element, the profile head and the pivotable part being designed such that the pivotable part can be guided through the gap from outside into the profile head in a loading position, and can be pivoted into a mounting position in which the pivotable part contacts the profile head from the inside, bridging the gap. | 06-20-2013 |
20130153374 | DEVICE FOR SUSPENDING A RAIL, IN PARTICULAR A RAIL OF AN OVERHEAD CONVEYOR OR LIFTING GEAR - A suspending device for a rail, in particular a rail of an overhead conveyor or lifting gear, with a tensile element, which comprises a threaded rod and at least one connecting part that is screwed to the latter, and with a securing element, which secures the screw connection between the threaded rod and the connecting part against loosening. The suspending device for a rail, in particular a running rail of a suspended conveyor or lifting gear, allows simplified and secure mounting in that the securing element engages in a groove with a pin part in the assembled state, with the groove being disposed in the threaded rod. | 06-20-2013 |
20130069379 | LOAD-RECEIVING MEANS, IN PARTICULAR A HOOK BLOCK OF A LIFTING GEAR - The invention relates to a load-receiving means, in particular a hook block of a lifting gear, comprising a hook having a shaft and a circumferential groove, in which an annular retaining element engages, which annular retaining element is supported on a supporting surface of a suspension element of the load-receiving means, wherein the annular retaining element has the form of a sleeve, which expands starting from the shaft in the direction of the supporting surface. In order to create a secure load-receiving means, in particular a hook block of a lifting gear, the annular retaining element is designed in the form of a conical sleeve in the manner of a truncated cone and has an exterior outer surface, an interior outer surface due to the sleeve shape, an upper annular top surface and a lower annular base surface. | 03-21-2013 |
20120280190 | BASE FRAME FOR A LIFTING APPARATUS, ESPECIALLY A CABLE TRACTION MECHANISM, COMPRISING CONNECTING POSSIBILITIES - A lifting apparatus, especially a cable traction mechanism, comprises a base frame that has at least two base plates and at least two longitudinal beams that interconnect the base plates and are spaced apart from each other. Attachment elements are mounted on the base plates by means of holding parts. The lifting apparatus, especially a cable traction mechanism, is characterized by a modular design, where the holding parts are arranged as extensions of the longitudinal beams. | 11-08-2012 |
20120267592 | BASE FRAME FOR A LIFTING APPARATUS, ESPECIALLY A CABLE TRACTION MECHANISM, AND METHOD FOR MOUNTING, DISMOUNTING, OR MODIFYING THE SAME - A lifting apparatus, especially a cable traction mechanism, comprising a base frame that has at least two base plates, further comprising at least two longitudinal beams which have a first end and an opposite second end and which interconnect the base plates and keep the same apart from each other. The lifting apparatus, especially a cable traction mechanism, comprises a simple design and can readily be mounted, dismounted, or modified by detachably fastening the first end and the second end of the longitudinal beams to the base plates in such a way in an operational state of the lifting apparatus and designing one of the at least two base plates in such a way that the longitudinal beams can be inserted or removed in the direction of the longitudinal axis thereof when mounting, dismounting, or modifying the base frame. | 10-25-2012 |
20120256145 | LIFTING APPARATUS, ESPECIALLY CABLE TRACTION MECHANISM, COMPRISING CONNECTING POSSIBILITIES - A lifting apparatus, especially a cable traction mechanism, comprising a base frame that has at least two base plates, further comprising at least two longitudinal beams that interconnect the base plates and are spaced apart from each other, and at least one attachable cross-member for cable reeving parts that is fastened to the base plates and extends substantially parallel to the longitudinal beams. Multiple mounting points, to which the attachable cross-member for cable reeving parts can be alternatively and detachably fastened, may be arranged on each of the base plates to promote modularity of the lifting apparatus. | 10-11-2012 |
20120234643 | CHAIN HOIST HAVING A SLIP CLUTCH - A chain hoist having an electric drive motor connected to a gearbox by a slip clutch, wherein the slip clutch comprises an enlarged outer surface area in the form of recesses disposed in the outer surface of the slip clutch for improving heat dissipation with the recesses being implemented circumferentially in the form of a thread pitch in the outer surface of the slip clutch. | 09-20-2012 |
20120193315 | TRAVELING CRANE HAVING TRAVELER AND HOISTING WINCH - A traveling crane includes a longitudinal beam displaceable on rails. A traveler having a hoisting winch with a cable drum is displaceable in a transverse direction, and is operable to wind a cable reeved through at least one lower block. The hoisting winch is displaceable relative to the traveler in a hoisting winch travel direction such that a cable run out point remains in one location relative to the longitudinal extent of the cable drum. Two winching hoists are provided which are displaceable transversely to the longitudinal beam with respective cable drums thereof being disposed parallel to and spaced from each other. A common cable can be wound up and down by the two cable drums, and the two cable drums include cable grooves running in opposite directions. The two cable drums are operable in the opposite direction of rotation for lifting and lowering a load. | 08-02-2012 |
20120115341 | ARRANGEMENT FOR CONNECTING TWO SUCCESSIVE CONTACT LINE RAILS - An arrangement is provided for connecting two successive contact line rails, each made of a longitudinal plastic profile and of at least one contact rail extending along the contact line rails. A contact rail connector is connected to the opposing ends of the contact rails of two successive contact line rails, electrically and mechanically connecting the contact rail ends of the contact rails, and having cover elements attached at the opposing rail ends of the contact line rails of two successive contact line rails, covering the contact rail connectors and displaceable relative to an intermediate element. In order to provide an arrangement for attaching two successive contact line rails that is simple to produce and allows uncomplicated assembly, the intermediate element is attached at each of the opposing rail ends of the contact line rails to be connected together, and the cover elements are attached to the intermediate elements. | 05-10-2012 |
20120061527 | SUSPENSION ELEMENT OF A TRAILING CABLE ASSEMBLY - The invention relates to trailing cable assembly including a hollow-profile rail that is open over a longitudinal gap and a plurality of suspension elements, which can be moved along the rail and to which an electrical power line may be fastened. In order to create such an assembly in which the suspension elements can be easily mounted and replaced, the suspension elements include support parts that can be introduced into a hollow space of the rail from the outside by way of the longitudinal gap to be in a mounting position, and the support part can be moved out of the mounting position and into a operating position in which it bridges the longitudinal gap of the rail. | 03-15-2012 |
20110240447 | OPERATING DEVICE FOR MANUALLY ACTUATING LIFTING DEVICES - An operating device is provided for manually actuating lifting devices. The device includes at least one switching element arranged in a switch housing, wherein the switching element includes a tappet, which protrudes from the switch housing. The tappet is guided in a sleeve and is covered by a covering element having a threaded ring. The sleeve protrudes outside through an opening in the switch housing, and is held in the switch housing through a threaded joint. The covering element is screwed to the sleeve in a detachable manner through the threaded ring of the covering element. Optionally, a tool is provided for installing the covering element. | 10-06-2011 |
20100102287 | LIFTING GEAR - The invention relates to lifting gear having a drive unit ( | 04-29-2010 |
20090009358 | METHOD AND SYSTEM FOR WIRELESSLY TRANSMITTING CONTROL COMMANDS FOR A CONTROLLER FOR LIFTING GEAR - Method for wirelessly transmitting control commands for a controller for lifting gear, wherein a wireless operating part has an unmistakeable address and a receiving part of the lifting gear has a selectable identifier, wherein the operating part is unambiguously assigned to a receiving part of lifting gear, said method comprising the following steps for assigning the operating part to the receiving part: (i) an address feature is formed from the address of the operating part and the identifier of the receiving part; (ii) the address feature is emitted in an allocation message; (iii) the emitted allocation message is received in the receiving part and (iv) the operating part is allocated to the receiving part, if the receiving part has not been allocated, by storing the address feature as a valid address feature in the receiving part, and corresponding system. | 01-08-2009 |
20080230503 | Device for Suspending a Rail, Particularly a Running Rail of an Overhead Conveyor or of a Lifting Apparatus - A device for suspending a rail, particularly a running rail of an overhead conveyor or of a lifting apparatus, on a traveling mechanism or supporting framework with a traction element, which is fastened at one end to the rail. The traction element is passed through by a bolt, which is fastened to the rail via a fixing device. The traction element consists of a single part and comprises a lower borehole for the bolt and an upper borehole for fastening to the traveling mechanism or to the supporting framework. | 09-25-2008 |