US3856150A - Mobile load handling means, particularly tower cranes - Google Patents

Mobile load handling means, particularly tower cranes Download PDF

Info

Publication number
US3856150A
US3856150A US00303042A US30304272A US3856150A US 3856150 A US3856150 A US 3856150A US 00303042 A US00303042 A US 00303042A US 30304272 A US30304272 A US 30304272A US 3856150 A US3856150 A US 3856150A
Authority
US
United States
Prior art keywords
tower
side members
load handling
locking
mobile load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00303042A
Other languages
English (en)
Inventor
D Wellman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Crane Industries Ltd
Original Assignee
General Crane Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Crane Industries Ltd filed Critical General Crane Industries Ltd
Application granted granted Critical
Publication of US3856150A publication Critical patent/US3856150A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/344—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes adapted for transport purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/346—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with locking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/348—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes the erection being operated by jacks

Definitions

  • the mobile platform has raised side members which are effective to reinforce the platform against bending along its length, and also carry raised pivot means for the tower at the rear end of the vehicle, the pivot means co-inciding with the side of the tower which is uppermost when the tower is in the horizontal travelling condition.
  • the present invention relates to mobile load handling 7 necting the platform means and the tower for moving the tower between these positions, and jib or boom support means mounted at the top of the tower and rotatable about the tower axis, the jib or boom being pivotally mounted on the support means for movement in the vertical plane, and hydraulic cylinder means being provided to cause the movement of the jib in the vertical plane (referred to as luffing movement).
  • this crane also differs from more conventional mobile tower cranes in having a tower which isnon-rotatable and which is rigid and self-supporting when erected, and capable of withstanding bending forces in different directions so as to be able to support at its upper end a turntable carrying the jib or boom.
  • the whole tower is mountedon a turntable carried directly by the vehicle or other mo ⁇ bile platform, and the tower and the jib rotate together on the turntable and are braced by cables also connected to the turntable in such manner that the tower itself does not have to withstand substantial bending moments in different directions, but is mainly subject to compression forces.
  • the present invention provides improved mobile platform means, and tower mounting means, for load handling or lifting means and particularly for cranes similar to that of my Canadian Patent No. 842,040 at least in having a non-rotatable tower tiltably mounted on mobile platform means.
  • a mobile load handling or lifting means comprising mobile platform means, a tower, pivot means mounting the base of the tower on the platform means to allow tilting movement of the tower between a vertical operating position and a substantially horizontal travelling position, and means interconnecting the platform means and the tower for moving the tower between these positions
  • the platform means includes a generally flat chassis portion and side members extending upwardly from the sides of the chassis portion, along a major part of the chassis length, the side members being effective to reinforce the flat chassis portion against bending along its length in the vertical plane and being spaced apart to accommodate the tower therebetween when the latter is in its travelling position
  • the pivot means for the tower being carried by the side members at an elevation above the flat chassis portion at least equivalent to a major part of the width of the base of the tower, the tower pivot means being on that side of the tower axis which is uppermost when the tower is in its travelling position.
  • the upwardly extending side members of the mobile platform means which may be in the form of a vehicle such as a truck, trailer, or semi-trailer, thus performthe dual function of bracing the flat chassis portion of the platform means and also provide a raised mounting for the base of the tower.
  • the side members increase the rigidity of the platform means both against bending along the length thereof and against twisting about a longitudinal axis of the chassis.
  • the use of a raised base mounting for the tower increases the operating height of the tower in relation to the chassis length which is required for accommodating the tower when travelling.
  • the tower pivot means is aligned with that side of the tower which is uppermost when the tower is in the travelling position.
  • the pivot means carried by the side members are spaced above the flat chassis portion by an amount similar to the width of the tower, so that when the tower is folded into the travelling position the lowermost side thereof lies against the flat chassis portion.
  • the tower pivot means is situated close to the top of the chassis side members, which are thus similar in height to the width of the tower, so that the tower is enclosed between the side members when in the horizontal position.
  • the tower has several telescoping sections, and this increases the advantage of using the raised base mounting as will be explained below.
  • the invention also provides an improved locking arrangement for the base of the tower, which allows this to be locked into its vertical operating position by remote control, and without any manual insertion of bolts or operation of latches or the like.
  • the base of the tower is provided with a pair of locking pins mounted within guide boresin the tower, these guide bores lying generally parallel to but spaced from the pivotal axis of the tower pivot means, and receiving bores for the locking pins are provided in the platform means in positions which are aligned with the locking pins when the tower is in the vertical position, the locking pins being connected to hydraulic cylinder means capable of moving the pins outwardly when the tower is vertical from an inner position in which the pins do not interfere with the tilting movement of the tower, to an outer position in which the locking pins project from their guide bores into the receiving bores in the platform means, thus locking the tower in the vertical position.
  • each of the locking pins is operated by an individual hydraulic cylinder means aligned with the locking pin.
  • FIG. 1 shows a side elevation of the complete crane in the operating condition
  • FIG. 2 shows a side elevation of the complete crane in the travelling condition
  • FIG. 3 shows, in side elevation, an enlarged view of the base mounting arrangement for the tower with the tower in the vertical position
  • FIG. 4 is a cross-sectional view on lines 4-4 of FIG. 3.
  • FIGS. 1 and 2 illustrate a crane basically similar to that described in my Canadian Patent No. 842,040, but with various modifications to be described herein and also in copending U.S. Pat. appln. Ser. No. 303,041 filed Nov. 2, 1972.
  • the crane includes mobile platform means in the form of a semi-trailer vehicle, having front and rear Outriggers 11 shown in the operating condition in FIG.
  • the rear Outriggers include horizontal telescopic support members 11a which are pivotal on the vehicle chassis about vertical axes, and both front and rear outriggers have hydraulically operated ground engaging pads 11b.
  • the vehicle has raised side members 12, the rear ends of which provide a raised mounting for pivot means 13 carrying thebase of tower 14.
  • the tower includes four telescoping sections including a base section 14a and upper sections 1412, 14c and 14d, and when these are telescopically collapsed they can be moved between the vertical position and the horizontal travelling position shown in FIG. 2 by hydraulic rams 15 which interconnect the vehicle chassis and the base section of the tower.
  • the semi-trailer vehicle 10 and the nature of the mounting at the base of the tower, with which the present-invention is particularly concerned, will be described in more detail below.
  • the telescoping sections of the tower are each of lattice type construction.
  • the tower sections are telescopically extendible by means of a multi-section hydraulic cylinder 16 connected between the lowermost and uppermost sections.
  • Full details of this tower, including the cylinder 16, and special means for ensuring rigidity of the tower-sections when either fully extended or fully retracted relative to each other are given in my U.S. Pat. appln. Ser. No. 303,041 filed Nov. 2, 1972.
  • the top of the tower 14 carries a turntable 20 rotatable by hydraulic slewing means, a cab 21 mounted on the turntable, a tiltable unit'22 mounted on top of the cab'and pivotal about a horizontal pivot 22a for folding the crane under control of a hydraulic cylinder 23, and a boom 24 pivotally mounted on the tiltable unit for movement in the vertical plane (ie., luffing movement).
  • the boom is arranged to be luffed by hydraulic cylinders 25 arranged one at each side of the boom, and the boom is also telescopically extendible under hydraulic control
  • FIG. 1' shows the boom near to its highest position, the boom being movable between this position and an approximately horizontal position by the hydraulic cylinders 25.
  • the semi-trailer vehicle 10 has a substantially flat chassis portion or bed indicated at 30 and which occupies at least two-thirds of the length of the trailer portion, and which as will be seen in FIG. 2 supports the underside of the base tower section 14a when the tower is folded into the travelling position.
  • the trailer also includes a slightly raised chassis portion 31 somewhat in the form of a goose-neck, which fits under the cab 21 and boom support structure of the crane when the tower is folded into the travelling position.
  • the raised side members 12 extend upwardly from the sides of theflat bed 30 and also from the sides of the raised chassis portion 31, the side members thus extending along the full length of the trailer.
  • the main, forward portions of these side members are diagonally braced in such manner that central loads on the associated portion of the chassis bed will produce compressive forces in the braces.
  • the rear portions of the members 12, extending for about one quarter the chassis length, are cross braced.
  • the side members 12 are very effective in reinforcing the chassis against bending in the vertical plane along its length, with the result that a trailer of adequate strength can be provided which has much less material than what would be required if the trailer had no raised side members.
  • the weight of the trailer shown herein is less by about one-third than the weight of a similar trailer having no side members but having the same rigidity provided by a thicker flat chassis.
  • the side members 12 are spaced apart sufficiently to accommodate the folded tower therebetween, and the
  • the pivot means 13 on-which the'tower is tiltably mounted include bearing means 13 which carry stubshafts extending from the lateral sides of the base tower section 14a, these stub-shafts being aligned with the right hand side of the tower as shown in FIG. 1, this being the side of the tower which is uppermost in the travelling position.
  • the bearing means 13a are carried at the rear ends of the side members 12, and very near to the rear end of the trailer (excluding the Outriggers).
  • the height of the bearing means 13a from the top of the chassis bed 30 is equivalent to the distance between these bearing means and the side of the tower which is lowermost during travelling so that when folded the base tower section is supported on bed 30.
  • FIGS. 3 and 4 also show particular details. of the instead of double acting rams.
  • the base of the base tower section and the side members 12, are provided with co-operating locking means for holding the tower in the vertical position, which will be described more fully with reference to FIG. 4.
  • the base of the tower is provided with a pair of locking pins 40 slidable with guide bores formed in the side plates 41 at the base of the tower near to the front side of the tower (the left hand side of FIG. 1) and in associated plates 42 spaced inwardly from plates 41, the bores thus being spaced by an amount similar to the tower width from the pivotal axis 13.
  • the guide bores are also co-axial with each other, and are parallel to the pivotal axis of the tower on the pivot means 13.
  • the side members 12 are provided with receiving bores 38a for the locking pins 40 in positions which are aligned with the locking pins when the tower is in the vertical operating position, these receiving bores 38a being located in extensions of the side members 12 provided by the upper ends of plates 38 welded inside the side members.
  • the inner end of each of the locking pins is provided with a clevis mount which is pivotally connected to the end of a piston rod extending from a hydraulic cylinder 43, the inner end of the hydraulic cylinder being pivotally mounted on a mounting 44 welded to the base plate 45 of the base tower section.
  • an individual hydraulic cylinder is provided for each of the locking pins, each hydraulic cylinder being capable of moving the attached locking pin from an inner position in which the outer end of the locking pin is substantially flush with the lateral side of the tower so that it does not interfere with tilting movement of the tower, to an outer position in which the locking pin projects from its guide bore into the receiving bore 38a carried by-the side member 12 of the trailer.
  • the guide bores give firm support for the locking pins over a large part of their length so that the projecting portions in the receiving bores 38a are capable of withstanding substantial lateral forces, and the pair of locking pins serves to hold the tower firmly in the vertical position when extended into receiving 1 bores 38a.
  • the cylinders 43 are operated by remote control, so that no manual operation is required in locking the tower into its vertical operating position.
  • interengaging machined surfaces are provided on the upper sides of plates 50 welded to' the sides of the base tower section and on the lower surface of plates 52 welded to the plates 38 in the region of bores 38a.
  • Both of these plates have engaging portions which are horizontal and which abut together when the tower has been raised in the vertical position by the hydraulic cylinder 15.
  • both plates have sloped, interlocking engaging portions particularly shown at 54 in FIG. 4, which act to hold theside members 12 against outward bending movement particularly on outwards movement of pins 40.
  • the outer ends of the locking pins are preferably tapered so that they can move readily into the receivingbores.
  • the crane may be driven to a suitable sitein the condition shown in FIG. 2, and the outriggers are then extended and put into operation to support the trailer vehicle.
  • the tower is then raised to its vertical position (while still telescopically collapsed) by operation of the hydraulic rams 15.
  • the hydraulic cylinders 43 are pressurized in such manner as to cause the locking pins 40 to move outwardly into the receiving bores 38a, the tower then being locked firmly in the vertical position.
  • the hydraulic cylinder 23 is actuated to move the tiltable unit 22 into the operable position shown in FIG. 1, simultaneous operation of the cylinders 15 and 23 allowing the tiltable unit, and the boom, to remain substantially horizontal during.
  • the tiltable unit carries the fuel and hydraulic fluid tanks 28 which would be spilled if tilted far fromthe horizontal.
  • the tower sections are then telescopically extended to the required height, in the manner particularly described in my US. Pat. appln. Ser. No. 303,041 filed Nov. 2, 1972.
  • the crane operator then climbs the tower and enters the cab 21 at which stage the crane is ready for operation.
  • the raised mounting for the tower provided by the chassis side members could be central of the vehicle, for example in the position shown in my copending US. Pat. appln. Ser. No. 144,199 filed May 17, 1971. With the configuration shown in this application, the main part of the side members would be below the height of the tower pivot.
  • Thepresent invention is also applicable to mobile towers for other purposes then cranes, for example for fire-fighting and rescue equipment.
  • load handling or lifting means may include a fire ladder mounted on the top of the tower, being longitudinally extendible and capable of luffing movement in the vertical plane in the same manner as a crane boom.
  • Mobile load handling or lifting means comprising mobile platform means including a vehicle such as a truck, trailer or semi-trailer, a tower, pivot means mounting the base of the towerv on the platform means to allow tilting movement of the tower between a vertical operating position and a substantially horizontal travelling position, and means interconnecting the platform means and the tower for moving the tower be- I tween these positions, said vehicle having a substantially flat chassis bed portion and side members connected to and extending upwardly from the sides of the vehicle flatbed portion along a major part of the length of the flat bed portion, said side members being spaced apart to accommodate the tower therebetween when the latter is in its foldedtravelling position and wherein the tower is supportedby said flatbed portion, the side members including bracing means for reinforcing the flat bed portion against bending along its length in the vertical plane due to the'weight of the tower thereon in the folded travelling position, the pivot means for the tower being carried by the side members at an eleva-' tion above the flat bed portion at least equivalent to a major part of the width of the base
  • the locking pins being connected to hydraulic cylinder means capable of moving the pins outwardly when the tower is .vertical from an inner position in which the pins do not interfere with the tilting movement of the tower, to an outer position in which the locking pins project from their guide bores into the receiving bores in the side members, thus locking the tower in the vertical position.
  • Mobile load handling or lifting means comprises a pair of oppositely extending pins slidably mounted on the base of the tower, and a pair of bores provided in the side members, each bore adapted to receive a respective pin when the tower is disposed in the vertical position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
US00303042A 1971-11-04 1972-11-02 Mobile load handling means, particularly tower cranes Expired - Lifetime US3856150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5129071A GB1404136A (en) 1971-11-04 1971-11-04 Mobile load holding means particularly tower cranes

Publications (1)

Publication Number Publication Date
US3856150A true US3856150A (en) 1974-12-24

Family

ID=10459425

Family Applications (1)

Application Number Title Priority Date Filing Date
US00303042A Expired - Lifetime US3856150A (en) 1971-11-04 1972-11-02 Mobile load handling means, particularly tower cranes

Country Status (10)

Country Link
US (1) US3856150A (enrdf_load_stackoverflow)
JP (1) JPS4862157A (enrdf_load_stackoverflow)
AU (1) AU459008B2 (enrdf_load_stackoverflow)
CA (1) CA980298A (enrdf_load_stackoverflow)
DE (1) DE2254290A1 (enrdf_load_stackoverflow)
FR (1) FR2158508B1 (enrdf_load_stackoverflow)
GB (1) GB1404136A (enrdf_load_stackoverflow)
IT (1) IT973374B (enrdf_load_stackoverflow)
NL (1) NL7214989A (enrdf_load_stackoverflow)
SE (2) SE395875B (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091935A (en) * 1975-02-07 1978-05-30 Walter Kidde & Company, Inc. Crane with a pivotal assembly for detachably connecting and supporting a boom thereon
US4194639A (en) * 1977-05-12 1980-03-25 Jlg Industries, Inc. Truck mounted crane and method of constructing same
ES2058015A2 (es) * 1992-06-11 1994-10-16 Aldaz Alberto Munarriz Sistema de monataje autonomo para grua automontante automatica.
EP1666401A1 (de) * 2004-12-03 2006-06-07 Thomas Wiesbauer Fahrzeugkran
US20090261053A1 (en) * 2008-04-04 2009-10-22 Roland Bohnacker Lattice mast crane and lattice mast boom
US20110079568A1 (en) * 2009-10-01 2011-04-07 Robert Eugene Mau Guyless service rig with side-mounted, pivotally deployable rear outriggers
US20130176046A1 (en) * 2012-01-05 2013-07-11 General Electric Company Mobile transformer testing system
US20140023474A1 (en) * 2012-06-11 2014-01-23 Liebherr-Werk Ehingen Gmbh Modularer Mobilkran
US20140034418A1 (en) * 2011-04-14 2014-02-06 Mantenimientos Electricos Campo De Aviacion, S.L. Repair/cleaning scaffolding tower for wind turbines
US20140158656A1 (en) * 2012-12-06 2014-06-12 Charles Pembleton Combination mobile boom truck & tower crane
EP2733282A4 (en) * 2012-08-24 2014-06-25 Zoomlion Heavy Ind Sci & Tech MATERIAL DISPENSING APPARATUS AND MATERIAL DELIVERY CONTROL METHOD FOR SAID MATERIAL DISPENSING APPARATUS
US20170144870A1 (en) * 2015-11-19 2017-05-25 Pride Bodies Ltd. Crane Support Assembly
US10112542B2 (en) * 2017-01-13 2018-10-30 Altec Industries, Inc. Deploying vehicle ladder
US20220194753A1 (en) * 2020-12-21 2022-06-23 National Oilwell Varco, L.P. Mobile tower crane systems and methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA984575A (en) * 1973-06-05 1976-03-02 Ype Bouma Stop lock assembly for a pivotal tower
US5865327A (en) * 1989-10-24 1999-02-02 J & R Engineering Co., Inc. Hydraulic boom for gantry and the like
US6685038B1 (en) 1999-10-15 2004-02-03 J & R Engineering Company, Inc. Extendible boom with locking mechanism having equalizer arrangement
CN113107779B (zh) * 2021-05-18 2022-06-14 中国石油大学(北京) 风机塔架与下部基础的快速连接装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190457A (en) * 1962-06-25 1965-06-22 Linden Knut Elis Mobile crane with pivotable boom mounted for alternate use as a tower
DE1920981A1 (de) * 1968-04-23 1969-11-06 Benoit Cadillon Roger Ein herunterklappbarer Kran mit einer aus Hydraulikzylindern bestehenden Vorrichtung zum Hochschwenken des Mastes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993570A (en) * 1955-04-18 1961-07-25 Emil A Bender Portable trailer-mounted derrick

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190457A (en) * 1962-06-25 1965-06-22 Linden Knut Elis Mobile crane with pivotable boom mounted for alternate use as a tower
DE1920981A1 (de) * 1968-04-23 1969-11-06 Benoit Cadillon Roger Ein herunterklappbarer Kran mit einer aus Hydraulikzylindern bestehenden Vorrichtung zum Hochschwenken des Mastes

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091935A (en) * 1975-02-07 1978-05-30 Walter Kidde & Company, Inc. Crane with a pivotal assembly for detachably connecting and supporting a boom thereon
US4194639A (en) * 1977-05-12 1980-03-25 Jlg Industries, Inc. Truck mounted crane and method of constructing same
ES2058015A2 (es) * 1992-06-11 1994-10-16 Aldaz Alberto Munarriz Sistema de monataje autonomo para grua automontante automatica.
WO2006058751A3 (de) * 2004-12-03 2006-08-10 Grove Gmbh Deutsche Fahrzeugkran
US20080169258A1 (en) * 2004-12-03 2008-07-17 Manitowoc Crane Group Germany Gmbh Vehicle Mounted Crane
US20100102018A1 (en) * 2004-12-03 2010-04-29 Thomas Weisbauer Vehicle mounted crane
US7828162B2 (en) 2004-12-03 2010-11-09 Manitowoc Crane Group Germany Gmbh Vehicle mounted crane
US8308000B2 (en) 2004-12-03 2012-11-13 Manitowoc Crane Group Germany Gmbh Vehicle mounted crane
EP1666401A1 (de) * 2004-12-03 2006-06-07 Thomas Wiesbauer Fahrzeugkran
CN103482489A (zh) * 2004-12-03 2014-01-01 曼尼托沃克起重机德国有限公司 汽车吊
CN103482489B (zh) * 2004-12-03 2016-06-29 曼尼托沃克起重机德国有限公司 汽车吊
US20090261053A1 (en) * 2008-04-04 2009-10-22 Roland Bohnacker Lattice mast crane and lattice mast boom
US8177081B2 (en) * 2008-04-04 2012-05-15 Liebherr-Werk Ehingen Gmbh Lattice mast crane and lattice mast boom
US9284168B2 (en) * 2009-10-01 2016-03-15 Mw Industries, Inc. Guyless service rig with side-mounted, pivotally deployable rear outriggers
US20110079568A1 (en) * 2009-10-01 2011-04-07 Robert Eugene Mau Guyless service rig with side-mounted, pivotally deployable rear outriggers
US20140034418A1 (en) * 2011-04-14 2014-02-06 Mantenimientos Electricos Campo De Aviacion, S.L. Repair/cleaning scaffolding tower for wind turbines
US20130176046A1 (en) * 2012-01-05 2013-07-11 General Electric Company Mobile transformer testing system
US9150390B2 (en) * 2012-06-11 2015-10-06 Liebherr-Werk Ehingen Gmbh Modular mobile crane
US20140023474A1 (en) * 2012-06-11 2014-01-23 Liebherr-Werk Ehingen Gmbh Modularer Mobilkran
EP2733282A4 (en) * 2012-08-24 2014-06-25 Zoomlion Heavy Ind Sci & Tech MATERIAL DISPENSING APPARATUS AND MATERIAL DELIVERY CONTROL METHOD FOR SAID MATERIAL DISPENSING APPARATUS
US20140158656A1 (en) * 2012-12-06 2014-06-12 Charles Pembleton Combination mobile boom truck & tower crane
US20170144870A1 (en) * 2015-11-19 2017-05-25 Pride Bodies Ltd. Crane Support Assembly
US10654693B2 (en) * 2015-11-19 2020-05-19 Pride Bodies Ltd. Crane support assembly
US10112542B2 (en) * 2017-01-13 2018-10-30 Altec Industries, Inc. Deploying vehicle ladder
US20220194753A1 (en) * 2020-12-21 2022-06-23 National Oilwell Varco, L.P. Mobile tower crane systems and methods
US11884520B2 (en) * 2020-12-21 2024-01-30 National Oilwell Varco, L.P. Mobile tower crane systems and methods

Also Published As

Publication number Publication date
DE2254290A1 (de) 1973-05-10
SE7611682L (sv) 1976-10-21
SE395875B (sv) 1977-08-29
IT973374B (it) 1974-06-10
NL7214989A (enrdf_load_stackoverflow) 1973-05-08
AU459008B2 (en) 1975-03-13
GB1404136A (en) 1975-08-28
AU4848172A (en) 1974-05-23
CA980298A (en) 1975-12-23
FR2158508A1 (enrdf_load_stackoverflow) 1973-06-15
FR2158508B1 (enrdf_load_stackoverflow) 1976-10-29
SE405241B (sv) 1978-11-27
JPS4862157A (enrdf_load_stackoverflow) 1973-08-30

Similar Documents

Publication Publication Date Title
US3856150A (en) Mobile load handling means, particularly tower cranes
US3938670A (en) Tower crane
US3831771A (en) Mobile crane with telescopic boom and jib and method for connecting the latter
US3784035A (en) Vehicle mounted loading hoist
US8684197B2 (en) Crane with boom raising assist structure
US4394911A (en) Heavy duty crane
US3830376A (en) Telescopic jib and bearing means therefor
US6089388A (en) Mobile crane
US5005714A (en) Crane, in particular a large mobile crane
US3944081A (en) Tower crane
US6039194A (en) Mobile roof crane
US3794184A (en) Crane
KR102061753B1 (ko) 상위구조체에서 효과적으로 일치하는 갠트리력 및 붐력을 갖는 크레인
US3817397A (en) Telescopic masts or towers
US4150754A (en) Utility crane
US5240129A (en) Heavy duty crane with self-retracting/erecting live mast
JP2021169370A (ja) 車両クレーン及びそのジブへの荷重を低減する方法
US3934729A (en) Tower crane
US3664516A (en) Folding crane boom
US3045837A (en) Rotary tower crane
US4498596A (en) Supplementary equipment for use with a self-propelled crane with a telescopic jib
US20030161708A1 (en) Triangulated mobile gantry crane
US3198345A (en) Crane
JPH0245274Y2 (enrdf_load_stackoverflow)
US4412622A (en) Telescoping strut crane