Patents Assigned to Demag Cranes and Components GmbH
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Publication number: 20090009358Abstract: 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.Type: ApplicationFiled: March 15, 2007Publication date: January 8, 2009Applicant: DEMAG CRANES & COMPONENTS GMBHInventor: Anton Munzebrock
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Publication number: 20080230503Abstract: 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.Type: ApplicationFiled: August 4, 2006Publication date: September 25, 2008Applicant: Demag Cranes & Components GmbHInventors: Reinhard Birkigt, Michael Buike
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Patent number: 7422542Abstract: A method for monitoring a chain pulley block and a chain pulley block apparatus with an electric actuator motor (2) that is connected at the drive side to a transmission (7) across a sliding clutch (14). In order to achieve a safe operation of the chain pulley block, the speed of the transmission (7) is determined via a sensor (18), the determined speed of the transmission (7) is compared in a control device (19) to the operating speed of the actuator motor (2) as determined from rated duty of the actuator motor (2) and if a deviation is found between the speed of the transmission (7) and the operating speed, allowing for tolerances and any transmission ratio of the transmission (7), the actuator motor (2) is switched off.Type: GrantFiled: August 24, 2004Date of Patent: September 9, 2008Assignee: Demag Cranes & Components GmbHInventors: Holger Freitag, Oliver Moll, Erik Appel, Ralf Eising, Udo Gersemsky, Burkhard Hasenack, Anton Münzebrock, Giuliano Persico
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Patent number: 7377486Abstract: A hoisting machine, such as a cable block, includes a support frame having at least two face plates, which are detachably joined together and spaced apart by at least two longitudinal members. The support frame includes a simple structural design, in which the longitudinal members are detachably joined to the face plates such that the ends of the longitudinal members are pressed against a bearing surface of the face plates in the direction of their lengthwise axis, transversely to the longitudinal member.Type: GrantFiled: June 22, 2006Date of Patent: May 27, 2008Assignee: Demag Cranes & Components GmbHInventors: Klaus-Jürgen Winter, Jürgen Backsmann
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Patent number: 7374126Abstract: A cable guide of a cable winch, such as a cable hoisting winch, includes a cable drum having at least one cable groove and a cable guide having at least two base segments expanding into a ring. The two base segments are guided in the cable groove by at least one engaging element and are supported against the cable winch by at least one torque support. Elements for guiding and holding down a cable are arranged on the base segments. To create a simplified and optionally modular design of a cable guide, the base segments may be configured such that at least one torque support and at least one add-on element for guiding and holding down a cable can be secured in a desired arrangement on the base segments.Type: GrantFiled: September 29, 2006Date of Patent: May 20, 2008Assignee: Demag Cranes & Components GmbHInventors: Thomas Kohlenberg, Josef P. Saeftel
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Publication number: 20080047919Abstract: A running gear, for example, a single-rail lower-flange running gear for hoisting equipment, includes several wheels running on a rail, at least two of which are arranged one behind the other in the direction of travel of the running gear and adapted to be driven by an electric motor. The driven wheels are joined to at least two shafts, which are oriented coaxially to the axis of rotation of said at least two driven wheels.Type: ApplicationFiled: August 24, 2007Publication date: February 28, 2008Applicant: Demag Cranes & Components GmbHInventors: Oliver Moll, Klaus Nerger, Udo Gersemsky
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Publication number: 20080041806Abstract: A device for suspending a rail, such as a travel rail of an overhead conveyor or a hoisting machine, from a traversing gear or supporting structure includes a tension element secured by one end to the rail. A bolt passes through the tension element and is received by a fixing device that is secured to the rail. The tension element is at least partly recessed in the fixing device in the direction of suspension. In order to provide a secure device that has a long service life and a low structural height, the tension element is fastened to the bolt by a ball-shaped joint, such as a pivoting bearing.Type: ApplicationFiled: September 29, 2006Publication date: February 21, 2008Applicant: DEMAG CRANES & COMPONENTS GMBHInventors: Reinhard Birkigt, Michael Buike, Klaus Enners, Stefan Fitzler, Udo Gersemsky, Ingo Grassmann, Sven Muller, Klaus Nerger, Stefan Steinberg, Rudiger Ostholt
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Patent number: 7303183Abstract: The invention concerns a safety brake mechanism for the winding drum (8) of a hoisting machine that can be driven via a motor (4) with lifting gearbox (3), which is substantially braked to a standstill without jerking when the lowering speed is excessive by a brake ring (12) that revolves concentrically with the winding drum (8) and is frictionally joined to the latter, when the brake ring (12) lying against a cylindrical brake surface (23) of the hoisting machine is locked. In order to allow for the grinding and adjusting of the necessary braking moment in the disconnected condition of the winding drum prior to the assembly of the complete lifting mechanism with low expenditure of material and cost, the brake surface (23) for the brake ring (12) may be provided on its outer circumference with a rigid coupling (10) that concentrically connects a lifting gearbox (3) and a winding drum (8), to which the lifting gearbox (3) and winding drum (8) are removably connected.Type: GrantFiled: September 1, 2005Date of Patent: December 4, 2007Assignee: Demag Cranes & Components GmbHInventor: Klaus-Jürgen Winter
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Publication number: 20070186800Abstract: A device for suspending a rail of an overhead conveyor or a hoisting machine from a traversing gear or supporting structure includes a tension element, which carries the rail by one end via a fixing device. The fixing device grasps a support element of the rail. The support element widens and extends at least partly in the lengthwise direction of the rail. To provide a device for suspending a rail that provides enhanced safety against collapse, the fixing device includes two fixing parts, which are connected like pliers by means of a bolt running in the lengthwise direction of the rail. The fixing parts swivel toward each other from the open position into the fixing position by their fixing regions. The support element of the rail rests against the bearing surfaces of the fixing parts, even in the open position, when the fastening means are released.Type: ApplicationFiled: September 29, 2006Publication date: August 16, 2007Applicant: DEMAG CRANES & COMPONENTS GMBHInventors: Reinhard Birkigt, Michael Buike, Klaus Enners, Stefan Fitzler, Udo Gersemsky, Ingo Grassmann, Sven Muller, Klaus Nerger, Stefan Steinberg, Rudiger Ostholt
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Publication number: 20070176446Abstract: The invention concerns a load hook with a hook fastened to a hook tackle that can be safely handled. A cover region is arranged at least partially between the hook tackle and the hook, such that the hook is covered starting at the outer contour of the hook tackle.Type: ApplicationFiled: December 22, 2006Publication date: August 2, 2007Applicant: DEMAG CRANES & COMPONENTS GMBHInventors: Ralf Eising, Udo Gersemsky, Uwe Lichtenvort, Thilo Walloschek
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Patent number: 7234684Abstract: A hoisting device, especially a cable or chain block, with a hoisting transmission having at least one shaft and with a hoisting load measuring mechanism. In order to determine the hoisting load as accurately as possible and possibly independent of the reeving and without additional structural height, the hoisting load has at least one sensor for detecting the deformation of the shaft produced by the hoisting load and the detected deformation is used as a quantity in determining the hoisting load.Type: GrantFiled: May 24, 2005Date of Patent: June 26, 2007Assignee: Demag Cranes & Components GmbHInventors: Thomas Kohlenberg, Franz Schulte
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Patent number: 7234400Abstract: A crane trolley, especially a single-rail trolley with a short overall height, with a traveling mechanism frame (2) having a hoisting mechanism (1), which can travel by running wheels (3, 3a) on a rail, especially a lower flange (4a) of an essentially horizontal beam (4), wherein at least one running wheel (3a) can be driven, and a friction roller (10) interacting with the driven running wheel (3a) is arranged on the underside (4b) of the rail. In order to create a crane trolley that guarantees a reliable reduction in the slippage of the driven running wheel (3a) with a simple design, a pair of friction rollers (10) is provided, which may be positioned against the underside (4b) of the rail by adjusting the spacing from each other via a common pressing mechanism.Type: GrantFiled: September 21, 2004Date of Patent: June 26, 2007Assignee: Demag Cranes & Components GmbHInventors: Klaus-Jürgen Winter, Michael Dammer, Heinrich Flaig, Erik Appel
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Patent number: 7219937Abstract: The invention concerns a suspension for load hooks, especially for lower blocks of cable controls, with a shaft mounted in a recess of a carrier body and able to turn about a vertical axis, which is mounted in a continuous bore of a support element and thrusts against the carrier body by means of at least one axial bearing. In order to create a short and simple construction of a suspension for a load hook, the invention proposes that the shaft of the load hook is mounted in the carrier body by a bearing arrangement consisting of the support element, at least one axial bearing, and the retaining ring surrounding the shaft, and the bearing arrangement is secured by a fastening element, especially a snap-ring, in the carrier body.Type: GrantFiled: March 3, 2004Date of Patent: May 22, 2007Assignee: Demag Cranes & Components GmbHInventors: Manfred Stöber, Klaus-Jürgen Winter, Karl Zacharias
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Patent number: 7201586Abstract: The invention concerns an arrangement for fastening of electrical and/or electronic power components to a circuit board, wherein the electrical and/or electronic power components (8) are mechanically and removably fastened to the board (6). The power components (8) have plug and/or terminal connection elements (8a) for their electrical connection and can be connected electrically to the board (6) via electrical lines, preferably with plug and/or terminal strips (13) arranged on the board (6).Type: GrantFiled: December 17, 2004Date of Patent: April 10, 2007Assignee: Demag Cranes & Components, GmbHInventors: Thomas Kohlenberg, Eckerhardt Grieb
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Publication number: 20070075174Abstract: A cable guide of a cable winch, such as a cable hoisting winch, includes a cable drum having at least one cable groove and a cable guide having at least two base segments expanding into a ring. The two base segments are guided in the cable groove by at least one engaging element and are supported against the cable winch by at least one torque support. Elements for guiding and holding down a cable are arranged on the base segments. To create a simplified and optionally modular design of a cable guide, the base segments may be configured such that at least one torque support and at least one add-on element for guiding and holding down a cable can be secured in a desired arrangement on the base segments.Type: ApplicationFiled: September 29, 2006Publication date: April 5, 2007Applicant: Demag Cranes & Components GmbHInventors: Thomas Kohlenberg, Josef Saeftel
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Patent number: 7126307Abstract: An interface circuit for actuating an electrical consumer, especially a pole-changing rotary-current induction motor, with a first contact element assigned to a signal line carrying an alternating voltage signal to generate at least two different control signals. A circuit arrangement is provided for actuating an electric motor, especially a pole-changing rotary-current induction motor, with a control switch element having an aforementioned interface circuit, which is connected via a signal line to a motor control of the electric motor.Type: GrantFiled: May 21, 2004Date of Patent: October 24, 2006Assignee: Demag Cranes & Components GmbHInventors: Holger Freitag, Anton Münzebrock, Burkhard Hasenack, Giuliano Persico, Erik Appel
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Patent number: 7119295Abstract: The invention refers to a hanging control device connected to a unit to be managed, specifically control switches or hanging control panels in order to control hoisting gear, by means of a control line, whereby the control line contains electrical lines (2) to transmit control signals and strain relief, which is supported at the top of the unit to absorb weight and traction forces. In order to create a hanging control device for which the length of the control line can be easily changed, we suggest that strain relief be created by means of hose (6), which can be folded flat and has the design of a type of textile hose, and that electrical lines (2) run through the inside of the hose.Type: GrantFiled: June 30, 2003Date of Patent: October 10, 2006Assignee: Demag Cranes & Components GmbHInventors: Michael Röhr, Anton Münzebrock, Wolfgang Krebs, Giuliano Persico, Rüdiger Ostholt
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Patent number: 7108248Abstract: The invention concerns a detachable fastening of a cable (2) on a cable drum (1), especially a wire cable, with an opening (1a) arranged in the cable drum (1), with an enlarged cable end (2a) on the cable (2) and a connection piece (4), by which the cable (2) with its end thickening (2a) is detachably secured to the cable drum (1) in the region of the continuous opening (1a). The connection piece (4) may be detachably secured in the continuous opening (1a) and the enlarged cable end (2a) be detachably secured to the connection piece (4).Type: GrantFiled: October 22, 2004Date of Patent: September 19, 2006Assignee: Demag Cranes & Components GmbHInventors: Klaus-Jürgen Winter, Heinrich Flaig, Jürgen Backsmann, Franz Schulte
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Patent number: 7068009Abstract: The invention concerns a drive arrangement of a lifting gear and/or a traveling gear, with a pole-reversible rotary-current motor with windings for at least two different actuating speeds, with a pole switching element connecting the rotary-current motor to a voltage supply for changing between the actuating speeds of the rotary-current motor. In order to create a drive arrangement of a lifting gear and/or a traveling gear with a rotary-current motor, whose switching behavior is optimized in relation to the actuation of the rotary-current motor, it is proposed that a power switching element (3) be hooked up in front of the pole switching element (5), and it can be separated from the voltage supply via the power switching element (3) for the pole switching process of the rotary-current motor (2).Type: GrantFiled: June 28, 2004Date of Patent: June 27, 2006Assignee: Demag Cranes & Components GmbHInventors: Holger Freitag, Anton Münzebrock, Burkhard Hasenack, Giuliano Persico, Erik Appel
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Patent number: D524508Type: GrantFiled: February 5, 2004Date of Patent: July 4, 2006Assignee: Demag Cranes & Components GmbHInventor: Uwe Lichtenvort