US3080981A - Tower-crane cabin - Google Patents
Tower-crane cabin Download PDFInfo
- Publication number
- US3080981A US3080981A US115196A US11519661A US3080981A US 3080981 A US3080981 A US 3080981A US 115196 A US115196 A US 115196A US 11519661 A US11519661 A US 11519661A US 3080981 A US3080981 A US 3080981A
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- US
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- Prior art keywords
- cabin
- crane
- tower
- arms
- cable
- 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
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- 230000002028 premature Effects 0.000 claims description 2
- 108010066057 cabin-1 Proteins 0.000 description 20
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
Definitions
- Our present invention relates to revolving tower cranes andmore particularly to an operators cabin for such crane.
- Revolving tower cranes are usually provided with a single operators cabin at the upper end of the crane.
- a further object of the present invention is to provide a crane cabin of adjustable height which can be'driven by the usual hoisting means of the crane.
- an 'operators cabin for a revolving tower crane movable along guide rails inside the crane structure in a generally vertical direction, motion being imparted to this cabin by a suitable flexible linkage, such as a traction cable or chain, controlled from inside or outside the cabin.
- Positive stop means may be provided for bracing the cabin against untimely descent, preferably in combination with a safety device of the type usual in building elevators for slowing the cabin in its downward motion or for arresting it in case 'of rupture of the traction cable.
- the upward movement of the cabin to the desired elevation can be effected either by hooking the cabin to the hoist cable of the crane, in which case the cabin moves downwardly by its own weight upon a retraction of the locking means, or by connecting it to a cable drum driven either electrically or mechanically from a winch.
- FIG. 1 is a side elevation of a revolving tower crane provided with an operators cabin elevatable by the hoisting mechanism of the crane;
- FIG. 2 is a top view of the operators cabin, showing the guide rails and locking means thereof;
- FIG. 3 is an enlarged front view of the operator's cabin
- FIG. 4 illustrates a revolving tower crane with a variable-height operators cabin driven by a cable winch located at the bottom of the crane;
- FIG. 5 shows a similar embodiment with the winch located at the top of the crane.
- FIG. 6 illustrates an embodiment with the cable fastened at the top of the crane and the winch located inside the cabin.
- an operators cabin 1 is installed inside the tower structure 2 of a crane.
- the cabin can be moved upwardly and downwardly inside the crane structure by means of a cable 5 fastened to a hook 6 on top of cabin 1, this cable passing around rollers 4,
- the end of cable 5 is provided with an eye 7 with which a hook 8 of a hoisting cable 9 of the crane is detachably linked to lift operators cabin 1 to a desired height inside the tower structure 2.
- the cabin moves on rails 17 which," as shown in .greater detail in FIGS. 2 and 3, are engaged by guide plates3 connected to cabin 1, a 'pair of such guide plates 3 surrounding the stem of each rail 17.
- the cabin 1 is provided with a crank-type stop mechanism 23 swingable in a horizontal plane and including two pairs of arms 12, one on each side of cabin 1.
- the arms 12 are pivoted on studs 24 and interconnected by bars 25 located inside cabin 1.
- a link 26 extends from each pair of ganged arms 12 to the center section of cabin 1 and is engaged by a lever 27 which can be manually operated to swing the arms 12 around their pivots 24.
- Platforms 10 are provided at various heights inside the crane tower -'2,'these platforms forming ledges 10 which .the arms 12 abut from above in their swung-out position.
- the cabin 1 is further provided with a safety device 18 located below its bottom and formed by two levers 19 which are swingable around a pivot pin 20 fastened to the cabin 1 and bear on the rails 17 by means of friction blocks 22.
- the blocks 22 are pressed against the rails 17 by -a spring 21 whose force, enhanced by the reaction of the cabin Weight on the levers 19 when the cable 5 slack- -ens, is sufiicient to hold the cabin 1 at any desired level.
- the levers 19 are engaged at their upper ends by a pedal 28 by means of which the force of spring 21 can be counteracted to decrease the friction between blocks 22 and rails 17.
- the remaining parts of the crane are of conventional design.
- the operating level of cabin 1 as shown in FIGS. 1, 2 and 3 can be adjusted in the following manner: with cabin 1 in the lower position illustrated in full lines in FIG. 1, hook 8 is inserted into eye 8 and the cabin 1 is raised by means of the capstan 32.
- the capstan motor is stopped and the cabin 1 is locked in its position by swinging out the arms 12 of the stop mechanism 23 into engagement with the lateral ledges 10 of the platform 10.
- the coupling between the cables 9 and 5 can then be unhooked.
- the arms 12 are retracted whereupon operation of the pedal 28 permits the cabin 1 to slide at a controlled speed to a lower position.
- the cabin can be held at any intermediate location between platforms 10 by the safety device 18 alone.
- the cabin 1 can be provided With its own drive by connecting one end of cable 5 to a drum 13 propelled by a winch 14, the drum being located on the lower part of the crane.
- the other cable end is again fastened to the hook 6 on the cabin.
- the winch 14 is in this case to be operated by a person standing outside the cabin.
- FIG. 5 shows the cabin 1 elevatable by a remote-controlled take-up drum 15 for the cable 5.
- the winch 14 and the drum 13 are located inside the cabin 1, cable 5 being suspended by its eye 7 from a hook 6' at the upper part of the crane.
- capstans 32, 32', the Windlass 13, 14 and the winch 15 are representative of any manual or automatic hoisting devices of the mechanical, electrical, hydraulic or other known type.
- a tower crane having a transportable structure, .in combination, an operators cabin, guide means extending generally vertically along the crane structure in engagement with said cabin for facilitating a raising and lowering thereof on said structure, elevated abutment means on said structure, control means for displacing said cabin along said guide means, and positive stop means on said cabin engageable with said abutment means for securing said cabin against premature descent;
- said stop means comprising two pairs of horizontally swingable arms having extremities projecting beyond opposite sides of said cabin in an operative position, and a linkage connected to said arms for manual operation thereof, said linkage being disposed near a wall of said cabin transverse to said sides.
- abutment means comprises a plurality of platforms mounted on said structure at different levels.
- said guide means comprises at least one rail, said cabin being further provided with safety brake means frictionally engageable with said rail.
- a tower crane comprising a horizontally transportable upright structure, rail means extending generally vertically along said structure, an operators cabin slidable along said rail means in engagement therewith, first and second roller means near the top of said structure, third roller means near the bottom of said structure, a
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
March 1963 a. KUSCHEL ETA].
TOWER-CRANE CABIN Filed June 6, .1961
3 Sheets-Sheet 1 Gerhard Kuschel Fritz Buske Wilhelm House FIG.2
FIG.I
1N VENTORS AGENT.
March 12, 1963 e. KUSCHEL :rm. 3,080,981
TOWER-CRANE CABIN Filed June 6, 1961 3 Sheets-Sheet 2 Gerhard Kuschei F rifz Buske Wilhelm H00 s12 INVENTORS AG ENT;
March 12, 1963 G. KUSC-HEL ETAL TOWER-CRANE CABIN Filed June 6, 1961 3 Sheets-Sheet 3 Gerhard Kuschel Fritz Buske Wilhelm House INVENTORS AGENT- Germany United States Patent 3,080,981 TOWER-CRANE CABIN Gerhard Kuschel, Fritz Buske, and. Wilhelm Haase,
Leipzig, Germany, assignors to VEB Schwermaschinenbau S. M. Kirow, Leipzig, Germany, a corporation of Filed June 6, 1961, Ser. No. 115,196 4 Claims. (Cl. 212-28) Our present invention relates to revolving tower cranes andmore particularly to an operators cabin for such crane.
Revolving tower cranes are usually provided with a single operators cabin at the upper end of the crane.
easily be adjusted to the most suitable height depending upon the operation of the crane.
It is another object of the present invention to provide a cabin of this character which can be easily installed in the structure of otherwiseconventional tower cranes.
A further object of the present invention is to provide a crane cabin of adjustable height which can be'driven by the usual hoisting means of the crane.
In accordance with the above objects we provide an 'operators cabin for a revolving tower crane movable along guide rails inside the crane structure in a generally vertical direction, motion being imparted to this cabin by a suitable flexible linkage, such as a traction cable or chain, controlled from inside or outside the cabin. Positive stop means may be provided for bracing the cabin against untimely descent, preferably in combination with a safety device of the type usual in building elevators for slowing the cabin in its downward motion or for arresting it in case 'of rupture of the traction cable. The upward movement of the cabin to the desired elevation can be effected either by hooking the cabin to the hoist cable of the crane, in which case the cabin moves downwardly by its own weight upon a retraction of the locking means, or by connecting it to a cable drum driven either electrically or mechanically from a winch.
The above and other objects, features and advantages of our invention will be more readily apparent from the following description of several embodiments, reference being made to the accompanying drawing in which:
FIG. 1 is a side elevation of a revolving tower crane provided with an operators cabin elevatable by the hoisting mechanism of the crane;
FIG. 2 is a top view of the operators cabin, showing the guide rails and locking means thereof;
FIG. 3 is an enlarged front view of the operator's cabin;
FIG. 4 illustrates a revolving tower crane with a variable-height operators cabin driven by a cable winch located at the bottom of the crane;
FIG. 5 shows a similar embodiment with the winch located at the top of the crane; and
FIG. 6 illustrates an embodiment with the cable fastened at the top of the crane and the winch located inside the cabin.
As shown in FIG. 1, an operators cabin 1 is installed inside the tower structure 2 of a crane. The cabin can be moved upwardly and downwardly inside the crane structure by means of a cable 5 fastened to a hook 6 on top of cabin 1, this cable passing around rollers 4,
' Fatented Mar. 12, 1963 4' at the top of the tower and around another roller 4" near its bottom. The end of cable 5 is provided with an eye 7 with which a hook 8 of a hoisting cable 9 of the crane is detachably linked to lift operators cabin 1 to a desired height inside the tower structure 2. The cabin moves on rails 17 which," as shown in .greater detail in FIGS. 2 and 3, are engaged by guide plates3 connected to cabin 1, a 'pair of such guide plates 3 surrounding the stem of each rail 17. The cabin 1 is provided with a crank-type stop mechanism 23 swingable in a horizontal plane and including two pairs of arms 12, one on each side of cabin 1. The arms 12 are pivoted on studs 24 and interconnected by bars 25 located inside cabin 1. A link 26 extends from each pair of ganged arms 12 to the center section of cabin 1 and is engaged by a lever 27 which can be manually operated to swing the arms 12 around their pivots 24. Platforms 10 are provided at various heights inside the crane tower -'2,'these platforms forming ledges 10 which .the arms 12 abut from above in their swung-out position. The cabin 1 is further provided with a safety device 18 located below its bottom and formed by two levers 19 which are swingable around a pivot pin 20 fastened to the cabin 1 and bear on the rails 17 by means of friction blocks 22. The blocks 22 are pressed against the rails 17 by -a spring 21 whose force, enhanced by the reaction of the cabin Weight on the levers 19 when the cable 5 slack- -ens, is sufiicient to hold the cabin 1 at any desired level.
The levers 19 are engaged at their upper ends by a pedal 28 by means of which the force of spring 21 can be counteracted to decrease the friction between blocks 22 and rails 17. The hoisting cable 9, passing around an idler roller 29 at the tip of crane arm 30 and around a further roller 31 above pulleys 4 and 4', is wound on a motor-driven capstan 32 whose controls, not shown, may be located in the cabin 1 along with those for a similar capstan 32' which serves to lower or raise the arm 30 via a cable 9'. The remaining parts of the crane are of conventional design.
The operating level of cabin 1 as shown in FIGS. 1, 2 and 3 can be adjusted in the following manner: with cabin 1 in the lower position illustrated in full lines in FIG. 1, hook 8 is inserted into eye 8 and the cabin 1 is raised by means of the capstan 32. When a platform 10 of desired elevation has been reached, the capstan motor is stopped and the cabin 1 is locked in its position by swinging out the arms 12 of the stop mechanism 23 into engagement with the lateral ledges 10 of the platform 10. The coupling between the cables 9 and 5 can then be unhooked. When the operator wants to descend to a different station, the arms 12 are retracted whereupon operation of the pedal 28 permits the cabin 1 to slide at a controlled speed to a lower position. The cabin can be held at any intermediate location between platforms 10 by the safety device 18 alone.
As shown in FIG. 4, the cabin 1 can be provided With its own drive by connecting one end of cable 5 to a drum 13 propelled by a winch 14, the drum being located on the lower part of the crane. The other cable end is again fastened to the hook 6 on the cabin. The winch 14 is in this case to be operated by a person standing outside the cabin.
The embodiment illustrated in FIG. 5 shows the cabin 1 elevatable by a remote-controlled take-up drum 15 for the cable 5.
In FIG. 6 the winch 14 and the drum 13 are located inside the cabin 1, cable 5 being suspended by its eye 7 from a hook 6' at the upper part of the crane.
It is to be understood that the capstans 32, 32', the Windlass 13, 14 and the winch 15 are representative of any manual or automatic hoisting devices of the mechanical, electrical, hydraulic or other known type.
The invention as described is believed to admit of many variations deemed to be within the ability of persons skilled in the art, and the embodiments hereinabove described are therefore intended to be merely illustrative of the principles of the invention, rather than restrictive of its scope which we wish to limit only to the extent indicated in the appended claims.
We claim:
1. In a tower crane having a transportable structure, .in combination, an operators cabin, guide means extending generally vertically along the crane structure in engagement with said cabin for facilitating a raising and lowering thereof on said structure, elevated abutment means on said structure, control means for displacing said cabin along said guide means, and positive stop means on said cabin engageable with said abutment means for securing said cabin against premature descent; said stop means comprising two pairs of horizontally swingable arms having extremities projecting beyond opposite sides of said cabin in an operative position, and a linkage connected to said arms for manual operation thereof, said linkage being disposed near a wall of said cabin transverse to said sides.
2. The combination according to claim 1 wherein said abutment means comprises a plurality of platforms mounted on said structure at different levels.
3. The combination according to claim 1 wherein said guide means comprises at least one rail, said cabin being further provided with safety brake means frictionally engageable with said rail.
4. A tower crane comprising a horizontally transportable upright structure, rail means extending generally vertically along said structure, an operators cabin slidable along said rail means in engagement therewith, first and second roller means near the top of said structure, third roller means near the bottom of said structure, a
flexible elongated hoisting element passing around said first roller means and having a load-engaging end depending from said structure, a co-operating flexible elongated traction element having one end anchored to said cabin and passing around said second and third roller means, coupling means releasably linking the other end of said traction element with the load-engaging end of said hoisting element, control means connected with the other end of said hoisting element for exerting traction upon the elements so interconnected, thereby elevating said cabin, positive stop means on said cabin, and elevated abutment means engageable by said stop means for securing said cabin at a desired level independently of said control means, thereby enabling disengagement of said traction element from said hoisting element; said stop means comprising two pairs of horizontally swingable arms having extremities projecting beyond opposite sides of said cabin in an operative position, and a linkage connected to said arms for manual operation thereof, said linkage being disposed near a wall of said cabin transverse to said sides.
References Cited in the file of this patent UNITED STATES PATENTS 733,907 Hanson et al. July 14, 1903 1,631,340 Rohlfing June 7, 1927 2,316,976 Sahlin Apr. 20, 1943 2,716,466 Sanders et al. Aug. 30, 1955 2,897,920 Falter et al. Aug. 4, 1959 FOREIGN PATENTS 13,088 France Nov. 9, 1910 (3rd addition of 413,623) 1,200,518 France June 29, 1958
Claims (1)
1. IN A TOWER CRANE HAVING A TRANSPORTABLE STRUCTURE, IN COMBINATION, AN OPERATOR''S CABIN, GUIDE MEANS EXTENDING GENERALLY VERTICALLY ALONG THE CRANE STRUCTURE IN ENGAGEMENT WITH SAID CABIN FOR FACILIATING A RAISING AND LOWERING THEREOF ON SAID STRUCTURE, ELEVATED ABUTMENT MEANS ON SAID STRUCTURE, CONTROL MEANS FOR DISPLACING SAID CABIN ALONG SAID GUIDE MEANS, AND POSITIVE STOP MEANS ON SAID CABIN ENGAGEABLE WITH SAID ABUTMENT MEANS FOR SECURING SAID CABIN AGAINST PREMATURE DESCENT; SAID STOP MEANS COMPRISING TWO PAIRS OF HORIZONTALLY SWINGABLE ARMS HAVING EXTRIMITIES PROJECTING BEYOND OPPOSITE SIDES OF SAID CABIN IN AN OPERATIVE POSITION, AND A LINKAGE CONNECTED TO SAID ARMS FOR MANUAL OPERATION THEREOF, SAID LINKAGE BEING DISPOSED NEAR A WALL OF SAID CABIN TRANSVERSE TO SAID SIDES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US115196A US3080981A (en) | 1961-06-06 | 1961-06-06 | Tower-crane cabin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US115196A US3080981A (en) | 1961-06-06 | 1961-06-06 | Tower-crane cabin |
Publications (1)
Publication Number | Publication Date |
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US3080981A true US3080981A (en) | 1963-03-12 |
Family
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Family Applications (1)
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US115196A Expired - Lifetime US3080981A (en) | 1961-06-06 | 1961-06-06 | Tower-crane cabin |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3252546A (en) * | 1964-01-30 | 1966-05-24 | Northwest Engineering Corp | Operator cab mounting |
US3300058A (en) * | 1964-11-13 | 1967-01-24 | Wilson Ray | Crane construction |
US3982634A (en) * | 1972-11-29 | 1976-09-28 | Mitsui Shipbuilding And Engineering Co., Ltd. | Method and apparatus for erecting a vertical structure |
EP0175052A1 (en) * | 1984-09-12 | 1986-03-26 | Liebherr-Werk Bischofshofen GmbH | Slewing tower crane |
US4606469A (en) * | 1982-08-16 | 1986-08-19 | Frans Swarttour B. V. | Double link level luffing crane |
FR2617821A1 (en) * | 1985-12-03 | 1989-01-13 | Loftmyr Leif | DEVICE EQUIPPED WITH A PILOTAGE CABIN FOR CONTROLLING A CRANE |
US5529452A (en) * | 1994-08-10 | 1996-06-25 | The Taylor Group, Inc. | Gantry crane |
US5810183A (en) * | 1995-05-26 | 1998-09-22 | Marine Travelift, Inc. | Gantry crane with elevating operator cab |
EP1312577A1 (en) * | 2001-11-15 | 2003-05-21 | Mitsubishi Heavy Industries, Ltd. | Crane and operating method thereof |
CN103086281A (en) * | 2013-01-18 | 2013-05-08 | 中联重科股份有限公司 | Tower type crane and cab thereof |
RU2482053C2 (en) * | 2011-10-27 | 2013-05-20 | Владимир Алексеевич Небольсин | Tower crane with elevator |
US20130240297A1 (en) * | 2012-03-15 | 2013-09-19 | Manitowoc Crane Group France Sas | Motorized height access device for tower cranes |
US20140110367A1 (en) * | 2012-10-23 | 2014-04-24 | Liebherr-Werk Biberach Gmbh | Crane |
GB2537072A (en) * | 2015-07-14 | 2016-10-05 | Mulcahy Alan | Tower crane cab roller ring restraint |
US20220002118A1 (en) * | 2019-03-20 | 2022-01-06 | Martin Aßfalg | Crane |
US20220056890A1 (en) * | 2018-11-15 | 2022-02-24 | Vestas Wind Systems A/S | A logistics system for a multirotor wind turbine |
US20230116011A1 (en) * | 2021-10-12 | 2023-04-13 | Caterpillar Inc. | Secondary control system and method for mounting with service orientation |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US733907A (en) * | 1902-10-21 | 1903-07-14 | Harry Hanson | Safety-chair for mining-cages. |
FR413623A (en) * | 1910-03-15 | 1910-08-13 | Louis Perbal Et Cie Soc | Advanced device for lifting and laying construction materials |
FR13088E (en) * | 1910-03-15 | 1911-01-19 | Louis Perbal Et Cie Soc | Advanced device for lifting and laying construction materials |
US1631340A (en) * | 1923-12-15 | 1927-06-07 | American Car & Foundry Co | Brake for elevators |
US2316976A (en) * | 1942-11-06 | 1943-04-20 | Otis Elevator Co | Car locking device |
US2716466A (en) * | 1953-04-13 | 1955-08-30 | Pigeon Hole Parking Inc | Means for positioning an elevator platform at predetermined levels |
US2897920A (en) * | 1958-01-28 | 1959-08-04 | Dresser Ind | Emergency brake for elevator cars |
FR1200518A (en) * | 1958-06-27 | 1959-12-22 | Boilot Petolat Ets | New pylon with advanced rotation device |
-
1961
- 1961-06-06 US US115196A patent/US3080981A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US733907A (en) * | 1902-10-21 | 1903-07-14 | Harry Hanson | Safety-chair for mining-cages. |
FR413623A (en) * | 1910-03-15 | 1910-08-13 | Louis Perbal Et Cie Soc | Advanced device for lifting and laying construction materials |
FR13088E (en) * | 1910-03-15 | 1911-01-19 | Louis Perbal Et Cie Soc | Advanced device for lifting and laying construction materials |
US1631340A (en) * | 1923-12-15 | 1927-06-07 | American Car & Foundry Co | Brake for elevators |
US2316976A (en) * | 1942-11-06 | 1943-04-20 | Otis Elevator Co | Car locking device |
US2716466A (en) * | 1953-04-13 | 1955-08-30 | Pigeon Hole Parking Inc | Means for positioning an elevator platform at predetermined levels |
US2897920A (en) * | 1958-01-28 | 1959-08-04 | Dresser Ind | Emergency brake for elevator cars |
FR1200518A (en) * | 1958-06-27 | 1959-12-22 | Boilot Petolat Ets | New pylon with advanced rotation device |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3252546A (en) * | 1964-01-30 | 1966-05-24 | Northwest Engineering Corp | Operator cab mounting |
US3300058A (en) * | 1964-11-13 | 1967-01-24 | Wilson Ray | Crane construction |
US3982634A (en) * | 1972-11-29 | 1976-09-28 | Mitsui Shipbuilding And Engineering Co., Ltd. | Method and apparatus for erecting a vertical structure |
US4606469A (en) * | 1982-08-16 | 1986-08-19 | Frans Swarttour B. V. | Double link level luffing crane |
EP0175052A1 (en) * | 1984-09-12 | 1986-03-26 | Liebherr-Werk Bischofshofen GmbH | Slewing tower crane |
FR2617821A1 (en) * | 1985-12-03 | 1989-01-13 | Loftmyr Leif | DEVICE EQUIPPED WITH A PILOTAGE CABIN FOR CONTROLLING A CRANE |
US5529452A (en) * | 1994-08-10 | 1996-06-25 | The Taylor Group, Inc. | Gantry crane |
US5810183A (en) * | 1995-05-26 | 1998-09-22 | Marine Travelift, Inc. | Gantry crane with elevating operator cab |
US7070060B1 (en) | 1995-05-26 | 2006-07-04 | Mi-Jack Products, Inc. | Gantry crane with elevating operator cab |
EP1312577A1 (en) * | 2001-11-15 | 2003-05-21 | Mitsubishi Heavy Industries, Ltd. | Crane and operating method thereof |
RU2482053C2 (en) * | 2011-10-27 | 2013-05-20 | Владимир Алексеевич Небольсин | Tower crane with elevator |
US9382099B2 (en) * | 2012-03-15 | 2016-07-05 | Manitowoc Crane Group France Sas | Motorized height access device for tower cranes |
US20130240297A1 (en) * | 2012-03-15 | 2013-09-19 | Manitowoc Crane Group France Sas | Motorized height access device for tower cranes |
US20140110367A1 (en) * | 2012-10-23 | 2014-04-24 | Liebherr-Werk Biberach Gmbh | Crane |
US9809422B2 (en) * | 2012-10-23 | 2017-11-07 | Liebherr-Werk Biberach Gmbh | Crane |
CN103086281B (en) * | 2013-01-18 | 2015-05-13 | 中联重科股份有限公司 | Tower type crane and cab thereof |
CN103086281A (en) * | 2013-01-18 | 2013-05-08 | 中联重科股份有限公司 | Tower type crane and cab thereof |
GB2537072A (en) * | 2015-07-14 | 2016-10-05 | Mulcahy Alan | Tower crane cab roller ring restraint |
GB2537072B (en) * | 2015-07-14 | 2017-12-06 | Mulcahy Alan | A Tower Crane Safety System |
US20220056890A1 (en) * | 2018-11-15 | 2022-02-24 | Vestas Wind Systems A/S | A logistics system for a multirotor wind turbine |
US20220002118A1 (en) * | 2019-03-20 | 2022-01-06 | Martin Aßfalg | Crane |
US11964850B2 (en) * | 2019-03-20 | 2024-04-23 | Liebherr-Werk Biberach Gmbh | Crane |
US20230116011A1 (en) * | 2021-10-12 | 2023-04-13 | Caterpillar Inc. | Secondary control system and method for mounting with service orientation |
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