Of Boom Sections Patents (Class 212/177)
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Patent number: 11787672Abstract: A lattice structure is mounted on a work machine, and is detachably coupled to a counterpart lattice structure adjacent to the lattice structure. The lattice structure includes a connector to which an end portion of any main pipe among a plurality of main pipes is connected and to which an end portion of at least one inclined pipe among a plurality of inclined pipes is connected, the connector being detachably coupled to a counterpart connector included in a counterpart lattice structure.Type: GrantFiled: April 23, 2019Date of Patent: October 17, 2023Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventor: Kazufumi Kudara
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Patent number: 11780712Abstract: The present disclosure relates to a mobile crane that comprises an undercarriage having a chassis and comprises a superstructure that is rotatable about a vertical axis relative to the undercarriage and has a telescopic boom at whose tip a boom head is arranged. The boom has holding means at one side for the support of a folding boom that can be releasably installed at the boom head. The boom laterally has a console and a holding element arranged between the console and the boom head. The folding boom is pivotable about a vertical axis of the holding element for the installation at the boom head, while it is supported on the console. In accordance with the present disclosure, a first securing device is arranged in the region of the console by means of which a movement of the folding boom deviating from a pivot movement about a vertical axis can be limited. The present disclosure furthermore relates to a folding boom for a crane.Type: GrantFiled: July 7, 2021Date of Patent: October 10, 2023Assignee: Liebherr-Werk Ehingen GmbHInventor: Bernd Boos
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Patent number: 11724373Abstract: The invention relates to a mobile, in particular portable, pin pulling device for pulling/inserting pins for connecting components of a construction machine, in particular of a crane, wherein the pin pulling device is designed in compact construction and has at least one electric drive having a rechargeable battery and a linear actuator drivable by the drive to move at least one pin.Type: GrantFiled: April 16, 2021Date of Patent: August 15, 2023Assignee: Liebherr-Werk Ehingen GmbHInventors: Frank Meixner, Matthias Waidmann
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Patent number: 11597636Abstract: The invention relates to a mobile crane with a two-part jib and to a method for aligning the boom system of such a mobile crane. The invention relates to a mobile crane with a multi-part flight boom, wherein a first jib part is hinged to the main boom in a rockable manner, and at least one second jib part is secured to the first jib part in an articulated manner. A bracing which is guided from the upper chassis to the jib is provided for aligning the jib, said bracing running over at least one intermediate bracing support mounted on the first jib part to the at least one second jib part.Type: GrantFiled: March 21, 2019Date of Patent: March 7, 2023Assignee: LIEBHERR-WERK EHINGEN GMBHInventor: Stefan Peters
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Patent number: 11053104Abstract: A boom for a pipelaying machine includes a pair of posts located in a first plane and disposed in a tapered configuration with respect to a second plane transverse to the first plane. The boom also includes a cross-brace disposed between the pair of posts and located partway along a length of the pair of posts. The cross-brace includes a first link member and a second link member disposed along the first plane. Further, each of the first and second link members are angularly offset from each other and the second plane respectively. Furthermore, ends of the first and second link members are rigidly attached to the pair of posts. The cross-brace further includes a first rib member and a second rib member disposed along the second plane and rigidly attached to the first link member and the second link member respectively.Type: GrantFiled: June 6, 2019Date of Patent: July 6, 2021Assignee: Caterpillar Inc.Inventors: James Michael Dunn, Curtis J Caldwell, Sean D. Lawson, Dana John Willer
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Patent number: 10781083Abstract: A mobile crane comprising a main boom, which is supported on the mobile crane in such a way that the main boom can be rocked and which can be put upright by means of an elevating cylinder, and a main boom extension, which is releasably connected to a main boom head of the main boom by upper and lower pins. The main boom extension, proceeding from a home position, can be angled in relation to the main boom about a rocking axis by means of an angle drive after the upper pins have been released, which angle drive acts on a base of the main boom extension, where a drive of the mobile crane provided for a different task provides the kinetic energy for the angle drive. The angle drive is designed in such that a telescoping cylinder of the main boom provides the kinetic energy for the angle drive.Type: GrantFiled: November 22, 2016Date of Patent: September 22, 2020Assignee: Terex Global GmbHInventors: Roland Kuhn, Michael Martin
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Patent number: 10704579Abstract: A connecting device connects a first attachment and a second attachment constituting a working machine with each other. The connecting device includes a first connected member, a second connected member, and a connecting member (connecting pin 15). The first connected member extends outward from a first side surface of the first attachment, the first side surface extending in a longitudinal direction of the first attachment. The second connected member extends outward from a second side surface of the second attachment, the second side surface extending in a longitudinal direction of the second attachment, the second connected member facing the first connected member when the first attachment and the second attachment come into a connection state. The connecting member connects the first connected member and the second connected member with each other.Type: GrantFiled: July 11, 2016Date of Patent: July 7, 2020Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Teppei Maedo, Kyohei Iwasa
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Patent number: 10647553Abstract: A mobile crane having a main jib that is mounted thereupon for luffing and that can be oriented by means of a luffing cylinder, and a main jib extension which is detachably connected to a main jib head of the main jib by upper and lower bolts, it being possible to angle the main jib extension about a luffing axis relative to the main jib proceeding from a base position following release of the upper or lower bolts and using an angle drive, the angle drive engaging with a foot of the main jib extension, a maximum angling angle being delimited by an adjustable angling plate, and the angling plate engaging with the foot of the main jib extension and the main jib head. The angle drive is a component of an angling plate in the form of a combi-angling plate.Type: GrantFiled: November 8, 2016Date of Patent: May 12, 2020Assignee: Terex Global GmbHInventors: Michael Martin, Traugott Fess, Roland Kuhn
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Patent number: 10647552Abstract: An interlock system includes first and second connectors for connecting a boom section to a boom. A first cover is provided for covering an actuator for actuating a first connector when a second connector is withdrawn from a position for connecting the boom section to the boom. A first block may also be provided for blocking a first receiver in an operative condition to prevent the first connector from entering the first receiver. The connector may be adapted for movement along an insertion axis corresponding to a first receiver on the boom section and a second receiver on the boom, and an actuator may be provided for advancing or retracting the connector, the actuator extending generally parallel to, but offset from, the connection axis. Related methods are also disclosed, as is an axially offset actuator for actuating one or more of the connectors for connecting the boom section to the boom.Type: GrantFiled: September 26, 2016Date of Patent: May 12, 2020Assignee: LINK-BELT CRANES, L.P., LLLPInventors: John P. Jones, Derrick Wonsowski, Adam Mefford
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Patent number: 10640340Abstract: A mobile crane having a tiltably mounted main jib which can be erected by a tilting cylinder, and having a main jib extension releasably connected to a main jib head of the main jib by upper and lower bolts. Starting from a normal position, after release of the upper bolts, the main jib extension can be angled about a tilting axis relative to the main jib by an angling drive that engages on a foot of the main jib extension, and a drive that is provided for another purpose supplies the kinetic energy for the angling drive. The angling drive includes a lever element having two lever arms, pivotably mounted on the upper chord of the main jib extension, with the first lever arm being connected to a lifting cable of the lifting gear for operation of the angling drive and engaging the main jib head by the second lever arm.Type: GrantFiled: November 22, 2016Date of Patent: May 5, 2020Assignee: Terex Global GmbHInventors: Roland Kuhn, Michael Martin
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Patent number: 10640339Abstract: A mobile crane having a main jib that is mounted thereupon for luffing and that can be oriented by means of a luffing cylinder, and a main jib extension that is detachably connected to a main jib head of the main jib by means of upper and lower bolts, it being possible to angle the main jib extension about a luffing axis relative to the main jib proceeding from a base position following release of the upper or lower bolts and using an angle drive, the angle drive engaging with a foot of the main jib extension, a maximum angling angle being delimited by an adjustable angling plate, and the angling plate engaging with the foot of the main jib extension and the main jib head. The angle drive may be a component of an angling plate in the form of a combi-angling plate.Type: GrantFiled: November 8, 2016Date of Patent: May 5, 2020Assignee: Terex Global GmbHInventors: Michael Martin, Traugott Fess, Roland Kuhn
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Patent number: 10589966Abstract: A jib coupling system a stowage coupling assembly having a locking member movable between a retracted position and an extended position, an extension pivot coupling system having a coupling member movable between a retracted position and an extended position, and a cable having a first end operably connected to the locking member and a second end having a locking pin. Movement of the locking member from the extended position to the retracted position causes the locking pin to engage the coupling member, and movement of the locking member from the retracted position to the extended position causes the locking pin to disengage the coupling member. The jib coupling system may be implemented as a part of a boom assembly and on a boom assembly of a mobile crane.Type: GrantFiled: February 26, 2018Date of Patent: March 17, 2020Assignee: Manitowoc Crane Companies, LLCInventor: William Edward Hull
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Patent number: 10414637Abstract: A boom section for the boom of a telescopic crane has a lower shell and an upper shell. The lower shell and the upper shell are welded to one another, and the weld seam extends between the lower shell and the upper shell angled in at least one region to at least one section edge of the boom section.Type: GrantFiled: June 2, 2017Date of Patent: September 17, 2019Assignee: Liebherr-Werk Ehingen GmbHInventors: Bernd Boos, Holger Schilke
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Patent number: 10392233Abstract: The present invention relates to a crane tower comprising a crane tower base, which has a crane tower or a crane tower element fixed thereto and from which the crane tower extends upwards, and a tension element for bracing the crane tower 1 on the crane tower base. The tension element has one of its two ends connected to the crane tower base and its respective other end connected to the crane tower or to a coupling element that is connected to the crane tower. The crane tower is characterized in that the tension element extends outside of the crane tower. It is thus possible to reduce the dimensions of the crane tower without causing any change of bending resistance or to increase the bending resistance on the basis of the same dimensions.Type: GrantFiled: March 23, 2016Date of Patent: August 27, 2019Assignee: Liebherr-Werk Biberach GmbHInventor: Joachim Mayer
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Patent number: 10323380Abstract: Components of a jig are suppressed from coming into contact with a pin hole when a coupling pin is removed from the pin hole, and a length of the jig in a coupling pin axial direction is held down. A coupling pin attaching/detaching apparatus (a coupling pin extracting apparatus) includes a cylinder and a connection member. The cylinder is arranged outside a coupling pin in a radial direction of the coupling pin and is extensible. The connection member is connected to the coupling pin and the cylinder. Extension of the cylinder causes the coupling pin to be extracted from a pin hole via the connection member.Type: GrantFiled: June 12, 2017Date of Patent: June 18, 2019Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Yoshio Sasaoka, Hitoshi Nakamura
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Patent number: 10196244Abstract: Provided is a jib connection structure capable of connecting a jib base end engagement part and a jib connection shaft even when a boom undergoes natural extension, and capable of restraining a jib from swinging sideways in a state where the jib is projected. This jib connection structure includes: jib connection shafts projecting horizontally toward both sides from a boom tip end part; and jib base end engagement parts respectively provided to bifurcated jib base end parts. Each jib base end engagement part is U-shaped into which the jib connection shaft can be fitted, and is provided with an insertion hole into which a pin for preventing the jib connection shaft from slipping out is inserted. When the jib base end engagement part and jib connection shaft are connected, a gap is formed between the pin and jib connection shaft. When a jib is projected, the gap becomes smaller.Type: GrantFiled: October 27, 2015Date of Patent: February 5, 2019Assignee: TADANO LTD.Inventors: Yuji Harauchi, Yuki Hata
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Patent number: 10184244Abstract: The present invention relates to a shear link including replaceable cover plates. The shear link includes first and second combination plates combined with a structure, a main frame that includes both ends fixed to the first and second combination plates respectively and a hollow formed in a center to pass therethrough forward and backward, first and second cover plates positioned to come into contact with left and right sides of the main frame respectively to cover the hollow and including a plurality of through holes passing therethrough forward and backward, and a combination unit that separably combines the main frame with the first and second cover plates.Type: GrantFiled: April 19, 2017Date of Patent: January 22, 2019Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, CHOSUN UNIVERSITYInventor: Jae Hyouk Choi
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Patent number: 10173868Abstract: A system and method for calculating a crane capacity for a crane having a variable position counterweight at an intermediate position is disclosed. In the method a boom combination is determined and a maximum capacity at a hook position is determined for the boom combination. A target value for an operating condition is established dependent on a balance of the crane between the variable position counterweight and a load on the hook. An indication is received of an intermediate counterweight position, and a load is calculated for the hook at the hook position for the boom combination and the intermediate counterweight position that results in the operating condition having the target value to determine an intermediate capacity. The intermediate capacity is compared with the maximum capacity and the lower of the maximum capacity and the intermediate capacity is output.Type: GrantFiled: June 10, 2016Date of Patent: January 8, 2019Assignee: Manitowoc Crane Companies, LLCInventors: Brian Nicholas Nysse, Timothy James Albinger
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Patent number: 10065841Abstract: A stowable luffing jib provides easy installation to add luffing capabilities to a crane. The stowable luffing jib comprises a base trunnion, a jib assembly, and a cable strut. The base trunnion is secured to the boom assembly and can be selectively placed into a stowed position and a deployed position. While the base trunnion is in the stowed position, the base trunnion is secured along the boom assembly substantially parallel with and adjacent to the boom assembly. While the base trunnion is in the deployed position, the base trunnion is secured to a distal end of the boom assembly and oriented substantially in line with the boom assembly. The jib assembly is secured to the base trunnion and configured to pivot in a substantially vertical plane. The cable strut receives a luffing guy line so as to set an inclined angle of the cable strut relative to the base trunnion.Type: GrantFiled: January 26, 2016Date of Patent: September 4, 2018Assignee: Altec Industries, Inc.Inventor: James A. Downing
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Patent number: 10053340Abstract: An intermediate suspension connection column segment designed for use in constructing a column which is supported by a suspension that includes a first end having a first connection configured to connect to a first adjacent column segment; a second end opposite the first end, the second end having a second connection configured to connect to a second adjacent column segment; and an intermediate suspension connection between the first connection and the second connection, the intermediate suspension connection configured to couple an intermediate suspension between the suspension and the column.Type: GrantFiled: January 20, 2015Date of Patent: August 21, 2018Assignee: Manitowoc Crane Companies, LLCInventors: Timothy J. Albinger, Joseph R. Rucinski, Derrick L. Geiser, Ryan M. Fickau, Ian M. Moore
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Patent number: 9827953Abstract: A utility vehicle, in particular a firefighting vehicle, comprising an extendable aerial apparatus like a turnable ladder and/or an aerial rescue platform, a jacking system with lateral ground supports for jacking the vehicle body, and a stabilization mechanism for preventing tilting of the vehicle body in its jacked state. The stabilization mechanism includes a hydraulically operable rear axle blocking device for blocking the rear axle suspension of the vehicle. The stabilization mechanism further includes at least one hydraulically lockable shock absorber integrated into the front axle suspension of the vehicle. The rear axle blocking device and the hydraulically lockable shock absorber are controlled by a common hydraulic control to lock the hydraulically lockable shock absorber at the same time or with a delay after activating the rear axle blocking device.Type: GrantFiled: January 22, 2015Date of Patent: November 28, 2017Assignee: Iveco Magirus AGInventor: Jens Kraemer
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Patent number: 9809429Abstract: A marine knuckle boom crane includes a crane housing which is rotational relative to a pedestal about a vertical rotation axis and a knuckle boom assembly attached to the crane housing. The knuckle boom assembly includes a main boom, the inner end of which is connected pivotably about a first horizontal pivot axis to the crane housing; and a jib, the inner end of which is connected pivotably about a second horizontal pivot axis to the outer end of the main boom, wherein the jib is pivotable at least between an extended position in which the tip extends mainly forward from the main boom, and a folded position in which the jib is folded back, essentially parallel along the main boom. In order to position the jib with respect to the main boom, a tensioning member is provided extending between the crane housing and a curved extension guide connected to the jib.Type: GrantFiled: July 8, 2013Date of Patent: November 7, 2017Assignee: ITREC B.V.Inventors: Joop Roodenburg, Hendrikus Jacobus Weterings
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Patent number: 9249595Abstract: Folding pole assemblies for erecting various types of items (e.g., flags, banners, sirens, etc.) as well as facilitating low-profile (e.g., covert, inconspicuous) access to the items after erection such as for maintenance, replacement, and/or the like. Each assembly includes at least one pole (e.g., mast, pillar, column, arm, etc.) that tilts (e.g., folds, pivots) away from a base member about a pivot axis disposed adjacent a bottom of the pole so that a substantial entirety of the pole remains on one side of the base member as the pole tilts between upright and tilted positions and/or between various tilted positions. This arrangement allows the base members of the disclosed folding pole assemblies to be placed adjacent walls and other structures so that the poles can tilt away from the walls and other structures in a perpendicular directions thereto.Type: GrantFiled: March 25, 2015Date of Patent: February 2, 2016Assignee: GREAT PLAINS TOWERS, INC.Inventor: Kevin Francis Reski
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Patent number: 9187296Abstract: A crane column segment connection system includes first and second column segments with a connector on the second end of the first segment mating with a connector on the first end of the second segment. The connectors each include at least one extension having a through-hole. The through-holes have an axis and are positioned in the extensions such that all through-holes of mating connectors are aligned when the column segments are aligned. In one aspect, the connectors include alignment surfaces cooperating such that when the first and second connectors are being brought together during column assembly, the alignment surfaces guide the column segments in two dimensions within a plane transverse to the axis of the through-holes into a relative position such that the through-holes through the extensions in the connectors are aligned.Type: GrantFiled: June 7, 2013Date of Patent: November 17, 2015Assignee: Manitowoc Crane Companies, LLCInventors: Robert J. Walker, Feng Pan
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Patent number: 9161526Abstract: A telescoping boom hoist system is a tree mounted system that provides a hunter with a facilitated means of raising and installing a tree stand. The telescoping boom hoist system is provided with a collapsible design that allows for facilitated transport and handling. The apparatus utilizes a telescopic boom and a frame assembly. The frame assembly provides a stable base for the apparatus. The telescopic boom is coupled to an axle member of the frame assembly, permitting the telescopic boom to pivot. The telescopic boom utilizes a plurality of guide rings that function as pulley or hoist anchor points. The telescoping boom extends the positioning of the guide rings in order to prevent interference while hoisting a tree stand. After installing the tree stand, the telescoping boom hoist system provides a means of safely raising a plurality of hunting equipment to the mounted tree stand.Type: GrantFiled: July 15, 2013Date of Patent: October 20, 2015Inventor: Jerry Lynn Nipper
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Patent number: 9139257Abstract: A twin arm gin pole is an apparatus that is used for leverage when raising or lowering a deck stepped mast on a sail boat. The apparatus includes a first arm, a second arm, a first lifeline stanchion coupler, a second lifeline stanchion coupler, a winch, and a halyard connector. The first arm and the second arm are connected in a V-shaped structural body. Each of the distal ends for the V-shaped structural body is hingedly connected to the boat by one of the lifeline stanchion coupler. The winch is connected adjacent to the vertex of the V-shaped structural body, and the halyard connector is connected adjacent to the V-shaped structural body, opposite the winch. The winch is cranked to either pull the V-shaped structural body towards or away from the deck of the boat. A halyard line is tethered between the halyard connector and the top of the mast.Type: GrantFiled: August 1, 2014Date of Patent: September 22, 2015Inventor: Thomas J. Beriou
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Patent number: 9102506Abstract: Method for the assembly of a mobile crane, particularly a telescopic crane, at a construction site, having a main boom as well as at least one boom enhancement loaded on a transport in turn having at least one lattice section. The method includes the steps of moving the mobile crane and/or the transport, to coarsely align the crane main boom and at least one lattice section of the boom enhancement to each other, connecting the crane main boom to the lattice section by one or more traction elements, and raising the main boom, which results in traction being applied to the one or more traction elements, to align the axes of the junctions of the main boom and of the lattice section at least partially for the subsequent assembly.Type: GrantFiled: May 8, 2012Date of Patent: August 11, 2015Assignee: LIEBHERR-WERK EHINGEN GMBHInventor: Hans-Dieter Willim
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Patent number: 9090438Abstract: A locking and bolting unit for sections telescoping out of a basic element, in particular sections of a telescoping boom of a mobile crane. The invention involves a locking and bolting unit for sections telescoping out of a basic element, in particular sections of a telescoping boom of a mobile crane, comprising two safety bolts (3) arranged displaceably relative to each other, and an interlocking bolt (5) interacting with a grasper (4). Moreover, the safety bolts (3) and an extension of the grasper (4) constructed as a piston rod (5) are positioned together in a lower housing section vertically displaceable in relation to each other and the piston (6) for the piston rod (5) of the grasper (4) is located in an upper housing part (2) placed on a lower housing part (1).Type: GrantFiled: February 18, 2010Date of Patent: July 28, 2015Assignee: Terex Cranes Germany GmbHInventor: Thomas Krebs
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Publication number: 20150102003Abstract: Auxiliary extension device for a crane provided with a telescopic extendable arm having at least one end segment provided with a free end, wherein the auxiliary extension device is made of one or more composite materials.Type: ApplicationFiled: October 10, 2014Publication date: April 16, 2015Inventors: Paolo Dario Maini, Mauro Marco Cortellini, Paolo Francesco Ragaini
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Patent number: 8991029Abstract: A beam structure of the present disclosure includes a baffle plate. A plurality of lap strips are attached around outer edges of the baffle plate. An adhesive layer is applied to outer surfaces of the lap strips. A plurality of sidewalls are assembled together around the adhesive layer, the lap strips and the baffle plate, thereby forming the beam structure. In an embodiment, the beam structure may be used as a boom assembly for a machine, such as an excavator machine.Type: GrantFiled: September 26, 2011Date of Patent: March 31, 2015Assignee: Caterpillar Inc.Inventors: Alexei P. Yelistratov, James A. Forck
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Publication number: 20150008205Abstract: The invention relates to a method of assembling a crane having a telescopic boom which has a coupling section, a telescopic cylinder supported therein and at least one telescopic section, wherein at least one telescopic section is transported to the site of deployment separately from the coupling section and the at least one separately moved telescopic section is drawn, in particular drawn slowly, into an outer section, in particular into the coupling section, in the assembly position by the telescopic cylinder by means of an auxiliary assembly head.Type: ApplicationFiled: July 2, 2014Publication date: January 8, 2015Inventors: Hans-Dieter Willim, Herbert Laible
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Patent number: 8919586Abstract: Hoisting crane (20), comprising a substantially hollow jib (24,-124; 324) having a longitudinal axis, and comprising one or more hoisting cable guides (47, 48, 49; 147; 347). The jib comprises at least one jib leg (29; 129; 329) extending between a jib connection member (26) and a jib hoisting end (27; 127; 327), wherein the at least one jib leg comprises one or more hybrid portions (160; 360) comprising two elongated hollow casings (170; 370) substantially parallel to each other and substantially parallel to the longitudinal axis of the jib, and wherein between the two casings a truss (171 371) is provided to rigidly connect the two castings.Type: GrantFiled: April 24, 2009Date of Patent: December 30, 2014Assignee: ITREC B.V.Inventors: Joop Roodenburg, Hendrikus Jacobus Weterings, Diederick Bernardus Wijning
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Publication number: 20140353272Abstract: A jib attachment/detachment mechanism to mount a jib on a boom head includes a guide mechanism including a guide roller and a guide support configured to guide engaging portions of a jib support to positions of engagement with shaft pins of a boom head when the jib support is pulled up with a wire by using a winch and to prevent change of a state of the wire pulled up by the winch when the jib support is rotated around the shaft pins by contracting a cylinder.Type: ApplicationFiled: June 3, 2014Publication date: December 4, 2014Applicant: TADANO LTD.Inventors: Masafumi NAKAMURA, Hiroshi TAKASHIMA
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Patent number: 8839966Abstract: A method of assembling a mobile lift crane that includes, during operation, i) a rotating bed having attached thereto a luffing jib hoist drum and line, and a rigging winch drum and line, ii) a boom pivotally mounted on the rotating bed, iii) a luffing jib pivotally mounted to the end of the boom, iv) a first strut also pivotally connected to the end of the boom, and v) a second strut connected to the boom below the connection point of the first strut, the method including: a) pivotally connecting the first strut to the end of the boom; b) pivotally connecting a first section of the second strut near the top of the boom; c) connecting the rigging winch line to the top of the first section; d) pivotally attaching a second section of the second strut to the first section such that the second section lies folded onto the first section, forming a folded second strut; and e) lifting the second section while retracting the rigging winch line to thereby bring the first and second sections into alignment with each otType: GrantFiled: March 24, 2010Date of Patent: September 23, 2014Assignee: Manitowoc Crane Companies, LLCInventors: Robert J. Walker, Michael J. Wanek
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Publication number: 20140263140Abstract: Disclosed is a raisable-lowerable member which comprises a boom and a jib. The boom comprises a first supporting portion configured to rotatably support a jib foot when the jib is set in a protruding posture; and a second supporting portion configured to rotatably support a supportable portion of the jib when the jib is set in an enfolded posture. A position adjusting and holding unit of the jib is configured to couple, to the frame, a specific site of the second link in such a manner that a relative position of the second link with respect to the frame in a rotational direction of the second link is adjustably changed to allow the rotational axis of the second joint portion to become coincident with the rotational axis of the jib foot, and to hold the second link at the changed relative position.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: KOBELCO CRANES CO., LTD.Inventors: Keiko INADA, Hitoshi KUROTSU, Daisuke TAKAOKA, Yasuo ICHIKAWA, Eiji MIYA
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Patent number: 8777026Abstract: Provided is a crane jib transition structure, including a jib section, a transition section and a supporting structure. The jib section matches with the transition section, and they fixedly connect to each other. The upper end of the supporting structure fixedly connects to the upper end of the side of the jib section. The bottom end of the supporting structure fixedly connects to the bottom end of the corresponding side of the transition section. The middle part of the supporting structure fixedly connects to the connection point between the side of jib section and the corresponding side of transition section. Therefore, the crane jib transition structure can not only achieve the strength of a crane jib transition structure, but also achieve the strength and the overall stability of a crane jib, by using the supporting structure connecting to between the crane jib section and transition section.Type: GrantFiled: June 27, 2011Date of Patent: July 15, 2014Assignees: Hunan Sany Intelligent Control Equipment Co., Ltd., Kushan Sany Mechanical Co., Ltd.Inventors: Fenglin Han, Mingqi Li
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Method and device for attaching and removing an additional device to the main boom of a mobile crane
Patent number: 8739987Abstract: A method and a device for attaching and removing an additional device having individual elements to and from a main boom of a mobile crane using no auxiliary crane is provided. In the method, a partial piece of the additional device having partial pieces is raised into an inclined position while being rotated about an upper pivot point, and a head of the main boom is bolted to a lower end of the inclined end of the partial piece of the additional device facing the mobile crane so as to be able to rotate. Using a hoist cable, all partial pieces are raised in alignment with respect to each other and the main boom, and are bolted to each other in this position and to the main boom. A displacement device for carrying out the method is also provided.Type: GrantFiled: February 25, 2010Date of Patent: June 3, 2014Assignee: Terex Demag GmbHInventors: Michael Martin, Roland Kuhn, Udo Biwer -
Patent number: 8739988Abstract: A crane includes first and second column segments. At least a first, third and fifth connector are located on the first segment, respectively mating with at least a second, fourth and sixth connector on the second segment. Each of the connectors includes at least a first extension having a through-hole positioned in the extension such that the through-holes of mating connectors are aligned when the column segments are aligned. A first pin fits tightly through the through-hole of the first extension on the first connector and the through-hole of the first extension on the second connector to hold the first and second connectors together. A second pin fits loosely through the through-hole of the first extension on the third connector and the through-hole of the first extension on the fourth connector to hold the second and fourth connectors together. The connectors also include a compressive load bearing surface.Type: GrantFiled: September 19, 2011Date of Patent: June 3, 2014Assignee: Manitowoc Crane Companies, LLCInventor: Robert J. Walker
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Patent number: 8689986Abstract: The invention relates to a system for bracing a telescopic crane, in particular a mobile crane, with a bracing unit which can be mounted on the jib. The bracing unit comprises erectable bracing supports and a holding frame for securing the bracing unit to the jib. The holding frame has a cross-section which is open at the top and allows the jib to be inserted from above the bracing unit The invention also relates to a method of positioning and mounting such a bracing unit on the jib of a telescopic crane.Type: GrantFiled: May 6, 2010Date of Patent: April 8, 2014Assignee: Manitowoc Crane Group France SASInventor: Frank Richter
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Publication number: 20140083964Abstract: Provided is a crane which comprises a luffing jib including a lower jib and an upper jib coupled to the lower jib in such a manner as to be separable from the lower jib, the lower jib is attached to a head of a boom to have a laid-down posture at a position between the boom and a strut when the upper jib is separated from the lower jib, when the boom is lowered and laid down to allow the head of the boom to come into contact with a ground and when the strut is lowered and laid down to allow a distal end of the strut to come into contact with the ground, and the lower jib has a length which causes no interference with the strut when the lower jib has the laid-down posture at the position between the boom and the strut.Type: ApplicationFiled: September 20, 2013Publication date: March 27, 2014Applicant: Kobelco Cranes Co., Ltd.Inventors: Hitoshi KUROTSU, Teppei Maedo, Eiji Miya, Keiko Inada
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Patent number: 8678210Abstract: A mobile crane includes a boom extension assembly having a base boom section with a primary shell and a secondary formed shell attached thereto, which allows for selective strengthening along the length of the base boom section. Methods involve manufacturing a boom assembly including such a base boom section.Type: GrantFiled: November 17, 2010Date of Patent: March 25, 2014Assignee: Link-Belt Construction Equipment Co., L.P., LLLPInventors: Daniel L. Harrington, John P. Jones
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Publication number: 20140061144Abstract: A crane includes: a boom; a jib that is provided on a leading end side of the boom; and a strut that is provided at one or both of a leading end portion of the boom and a base end portion of the jib, and to which a jib support pendant is connected, the strut, to which the pendant is connected, being provided with strut rotationally moving means having: a first bar-like member rotationally connected, at a first end portion thereof on one side, to a leading end portion of the strut on an opposite side thereof to a side, on which the pendant is connected; and a direct acting apparatus that applies, to the first bar-like member, a force pulling the first bar-like member toward the other side along a longitudinal direction of the first bar-like member.Type: ApplicationFiled: August 26, 2013Publication date: March 6, 2014Applicant: IHI Construction Machinery LimitedInventor: Tetsuyuki TERAUCHI
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Publication number: 20140027398Abstract: Method for the assembly of a mobile crane, particularly a telescopic crane, at a construction site, having a main boom as well as at least one boom enhancement loaded on a means of transport, and comprising at least one lattice section, which method has the method steps of moving the mobile crane and/or the means of transport, to coarsely align the crane main boom and at least one lattice section of the boom enhancement to each other, connecting the crane main boom to the lattice section by means of one or more traction means, and raising the main boom, which results in traction being applied to the one or more traction means, to align the axes of the junctions of the main boom and of the lattice section at least partially for the subsequent assembly.Type: ApplicationFiled: May 8, 2012Publication date: January 30, 2014Applicant: Liebherr-Werk Ehingen GmbHInventor: HANS-DIETER WILLIM
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Publication number: 20130270208Abstract: A crane column segment connection system includes first and second column segments with a connector on the second end of the first segment mating with a connector on the first end of the second segment. The connectors each include at least one extension having a through-hole. The through-holes have an axis and are positioned in the extensions such that all through-holes of mating connectors are aligned when the column segments are aligned. In one aspect, the connectors include alignment surfaces cooperating such that when the first and second connectors are being brought together during column assembly, the alignment surfaces guide the column segments in two dimensions within a plane transverse to the axis of the through-holes into a relative position such that the through-holes through the extensions in the connectors are aligned.Type: ApplicationFiled: June 7, 2013Publication date: October 17, 2013Inventors: Robert J. Walker, Feng Pan
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Patent number: 8534474Abstract: A crane column segment connection system includes first and second column segments with a connector on the second end of the first segment mating with a connector on the first end of the second segment. The connectors each include at least one extension having a through-hole. The through-holes have an axis and are positioned in the extensions such that all through-holes of mating connectors are aligned when the column segments are aligned. In one aspect, the connectors include alignment surfaces cooperating such that when the first and second connectors are being brought together during column assembly, the alignment surfaces guide the column segments in two dimensions within a plane transverse to the axis of the through-holes into a relative position such that the through-holes through the extensions in the connectors are aligned.Type: GrantFiled: June 6, 2011Date of Patent: September 17, 2013Assignee: Manitowoc Crane Companies, LLCInventors: Nathan P. Holly, Robert J. Walker
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Patent number: 8479933Abstract: A truck-mounted crane is disclosed. The truck-mounted crane may include an elongated pole member, a pivoting arm pivotally attached to the elongated pole member, a support member secured to the elongated pole member, an extension member secured to the support member, an elongated securing member, and an anchoring member. When secured to a truck, the support member may rest on the rim of a truck bed with the secured extension member being positioned within a socket of the truck bed rim. In such configuration, one end of elongated pole member may be pivotally attached to the pivoting arm and the other end of the elongated pole member may be secured to a cargo loop of a truck using the elongated securing member and an anchoring member.Type: GrantFiled: February 8, 2010Date of Patent: July 9, 2013Inventor: Moises C. Vaquera
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Patent number: 8438713Abstract: A pin removal assembly for use with an upper block of a crane includes a sheave support and a pin support. The upper block includes a frame, a plurality of sheaves, and a removable sheave pin that defines and axis of rotation for the sheaves and supports the sheaves within the frame. The pin removal assembly includes a sheave support mountable to the frame of the upper block and a pin support mountable to the frame of the upper block. The pin support is configured to support the sheave pin when the sheave pin is removed from the upper block.Type: GrantFiled: April 6, 2012Date of Patent: May 14, 2013Assignee: MHE Technologies, Inc.Inventor: Steven K. Waisanen
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Patent number: 8414214Abstract: An element is provided for connecting the chords of a lattice system, which consists of upper chords and lower chords, between which struts and/or stays are arranged, to a telescopic boom head. Thereby, the lower chords are directly connected to the telescopic boom head by means of bolts, while the upper chords can be connected to the telescopic boom head by a connecting element of variable length in such a way that—with respect to the connection of the lower chords—the upper chords can be connected to one another at a variable angle, and wherein the connecting element consists of two butt straps which can each be fastened at one end of mutually facing ends of the upper chords and can be connected to one another at different points.Type: GrantFiled: July 16, 2008Date of Patent: April 9, 2013Assignee: Terex Cranes Germany GmbHInventor: Michael Martin
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Patent number: 8366373Abstract: A fully collapsible lightweight mount to support a cargo loading apparatus. The mount has releasably attached horizontal and vertical arms, with a bracket to adjustably attach a cargo loading device on the vertical arm. In one embodiment, the horizontal arms have brackets configured to attach to “stake holes” in the standard side walls of a pickup truck cargo bed. The vertical arm of the device may be further supported against for example, a cargo bed forward wall or floor by a floor brace. Alternatively horizontal arm may attach to a pickup truck trailer hitch by additional mounts and connecting arm components suitable for attachment to a class 3 trailer hitch. The component parts can be readily assembled and disassembled, are lightweight, and occupy little space. The disassembled device can be stored in a carrying bag in the cab or other compartment of a vehicle.Type: GrantFiled: December 20, 2004Date of Patent: February 5, 2013Inventor: Steven Wood
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Publication number: 20120175333Abstract: A method of connecting sections of a crane suspension assembly together includes attaching a frame to a member of a first section; connecting a tension member between the frame and a connector used in the assembly; moving the tension member so that the connector pivots about a pin to a position where a second hole in the connector is in alignment with a hole in a second section member; putting a second pin through the hole in the connector and the hole through the second section member; and disconnecting the tension member from the connector. The method may also include attaching a frame with a winch to a section of the crane suspension assembly; connecting a line from the winch to the connector; activating the winch to move the connector so that it pivots about a pivot axis; and securing the connector in its second position.Type: ApplicationFiled: January 11, 2012Publication date: July 12, 2012Inventors: David J. Pech, Robert J. Walker, William J. O'Neil