WO2012056435A1 - Telescopic tower crane and scaffold - Google Patents

Telescopic tower crane and scaffold Download PDF

Info

Publication number
WO2012056435A1
WO2012056435A1 PCT/IB2011/054823 IB2011054823W WO2012056435A1 WO 2012056435 A1 WO2012056435 A1 WO 2012056435A1 IB 2011054823 W IB2011054823 W IB 2011054823W WO 2012056435 A1 WO2012056435 A1 WO 2012056435A1
Authority
WO
WIPO (PCT)
Prior art keywords
cages
tower crane
telescopic
rope
telescopic tower
Prior art date
Application number
PCT/IB2011/054823
Other languages
French (fr)
Inventor
Nisari Ozdogan
Original Assignee
Gokkule Makina Muhendislik Taahhut Arge Sanayi Ve Ticaret Limited Sirketi
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
Priority to TR2010/08875A priority Critical patent/TR201008875A2/en
Priority to TR2010/08875 priority
Application filed by Gokkule Makina Muhendislik Taahhut Arge Sanayi Ve Ticaret Limited Sirketi filed Critical Gokkule Makina Muhendislik Taahhut Arge Sanayi Ve Ticaret Limited Sirketi
Publication of WO2012056435A1 publication Critical patent/WO2012056435A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/18Cranes 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
    • B66C23/26Cranes 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
    • B66C23/34Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/342Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/12Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/18Cranes 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
    • B66C23/26Cranes 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
    • B66C23/28Cranes 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 constructed to operate at successively higher levels
    • B66C23/30Cranes 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 constructed to operate at successively higher levels with frameworks composed of telescopic elements
    • B66C23/305Cranes 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 constructed to operate at successively higher levels with frameworks composed of telescopic elements with locking devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044Working platforms suspended from booms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00Scaffolds primarily resting on the ground
    • E04G1/18Scaffolds primarily resting on the ground adjustable in height
    • E04G1/22Scaffolds having a platform on an extensible substructure, e.g. of telescopic type or with lazy-tongs mechanism

Abstract

The present invention relates to a telescopic moveable tower, wherein rectangular telescopic steel cages ascend by means of pulleys by winding steel ropes around the drum or drums via a worm gear reducer. It has the features of locking itself in case the rope breaks or comes loose, can be stopped at the desired point, and the cages can be fixed to each other if desired at the point of elevation. While our telescopic tower can be used as a tower crane by mounting a boom thereon, it can also be used as a telescopic moveable scaffold by mounting a working platform thereon

Description

TELESCOPIC TOWER CRANE AND SCAFFOLD
The present invention relates to a telescopic tower wherein quadrangular steel cages are produced to operate telescopically and are elevated by the help of pulleys by means of steel rope wound around a drum. It is an equipment which may be used as a tower crane when a rotary table and boom are mounted onto the innermost cage, and as a scaffold when a working platform is mounted onto the same. Tower crane is accepted to be an indispensable equipment for multi-storey constructions in the present day. With the increase in the land prices, the requirement of building multi-storey buildings arose, and thus a great need arose for tower cranes for lifting and carrying formwork accessory and construction materials rapidly and safely.
Tower cranes, which currently cannot be manufactured in our country, are imported from abroad. A great majority of the tower cranes that are imported are rented by intermediary firms. Due to the fact that their prices and rents are high, not all construction companies can purchase or rent them. We have designed a telescopic tower crane that may be used at constructions as tall as 25-30 meters, with the purpose of satisfying this need that causes a major currency loss for our country and producing it at a price that can be afforded by small and medium scale constructors. Although tower cranes provide great convenience since they serve a wide area and they rapidly carry hundreds of kilograms of load, in fact, depending on the closeness to the tower, thousands of kilograms of load to the intended location; transportation, assembly and disassembly thereof is a time consuming and difficult process. Assembly and disassembly thereof should only be performed by experts who are trained for this process. Since the tower crane of our project, which we have developed taking into consideration these difficulties in the present tower cranes, has a telescopic tower; when its tower is lowered and boom is dismantled, its trailer on which the tower is mounted can be taken to the new working area by being pulled by a suitable vehicle. When it is maximum 3-4 meters high in its lowered state, the load on its wheels are removed by its lifter legs with shoe and brought to the bascule. Upon mounting its boom and its weights, the tower is elevated. The steel cages, which ascend telescopically and are wedged to each other; are seated on four steel pins that are fixed on an outer cage with a second simple operation, and the loads on the ropes are removed and our tower crane is made ready for operation.
The telescopic tower which is raised by the worm gear reducer and the steel ropes from two opposite sides is comprised of telescopically operating steel cages which are 2-3 meters or (if a hydraulic arrangement that will be rested on the trailer during transportation is made) 4-5 meters tall. For the boom that is mounted on the tower, the available booms in the state of the art are made use of and the one that is suitable for the construction is selected. The most suitable arrangement to rotate the boom will be worm gear. Since our telescopic tower crane can vertically move a working platform, which is coupled to its boom, as it is seen in drawing (3/10), thanks to the fact that the tower thereof is moveable; it is seen that it can also be used as a scaffold. This feature thereof may be very essential for places whose ground is not suitable for or which have a state that obstructs installing a scaffold.
The Telescopic Tower Scaffold is the tower crane wherein a working platform is mounted in place of the boom and the rotary table. There is provided a working platform on the telescopic tower for facade and ceiling works, which platform is connected in the middle and suspended by guy ropes, is comprised of two parts and wide enough to provide working convenience and has a safety rail, and whose floor is covered with a perforated sheet metal or grid. Our invention that we have named as "Telescopic Tower Crane" or "Telescopic Tower Scaffold" which are designed to be used for different services are identical in terms of the tower, trailer, lifter legs, rope drums and safety lock systems, besides the "boom" in the tower crane and the "working platform" in the tower scaffold.
Although the telescopic tower crane illustrated in figure (2/10) and designed to be used in works of facades and ceilings, which are not very high and are located only on flat grounds, is the same in terms of the working principles, it is operated with a single rope. It either has a car which is suitable to be carried by being pulled by a vehicle or is mounted on a car with small castering wheels having brakes that is to be carried upon being loaded on a vehicle. For wide area ceiling works or works under domes in closed places; the single rope scaffold can also be manufactured as being comprised of four towers such that two of them oppose the other two, having a square or rectangular working platform seated on the four towers, having a single reducer with two drums and transmission shafts. Since it is not very high, it is possible to incorporate an electrically driven (chargeable) remote control traveling unit to our single rope telescopic tower scaffold.
The most significant features of our invention titled telescopic tower crane and scaffold which are different from the scaffolds and tower cranes being used in the state of the art are that it does not have any assembly, disassembly or elevation problems, it is able to ascend by itself and when it is folded, instead of being loaded onto a vehicle, it can be pulled by a vehicle to the desired location by means of the trailer that is provided underneath thereof. Ascending of our tower crane and tower scaffold telescopically is realized by steel ropes and pulleys. Since one of two pulleys that are operating when ascending is moveable, the load acting on the reducer is reduced by 50%. The reducer that is to be used should be worm gear (as a two coupled worm gear reducer). The threads and gear teeth of the reducer that rotate the drum should posses the power to carry the load that it will lift and should be fixed upon calculating the required safety coefficient. Although, when the rope is broken or it comes loose because of the reducer, the safety locks are automatically enabled and they prevent the cages from falling down by locking them at their positions; by means of a second system, when the ascending cages are wedged by an outer cage and raise the outer cage by 8-10 cm, the spring steel pins provided on the outer cage hold the inner cage from four corners and thereby prevent descending thereof. When the tower crane that we will operate or the tower scaffold that we will work on is stopped at the height that we desire, they are supported by a second safety system wherein we fix the undermost elevated cage at its current position, lock all of the elevated cages and completely receive the load on the steel ropes. As a result of our works aiming to eliminate the deficiencies that we have encountered in the prototype production of the system for which we have previously applied for a patent on June 1 , 2009 with the title "Telescopic moveable facade and ceiling scaffold" no. 2009/04247; it is seen that both the material to be used and the lock system, fixing way and the positions of the cages in their telescopic operation should be changed and they should be supported from outside and inside in order to prevent friction and to avoid any space to be left therebetween.
The fact that our telescopic tower has the feature of being able to be fixed after it is elevated shows that the tower can also be used as a crane. In this respect, our telescopic tower will be used as a crane when we mount a rotary table and boom thereon, and will be used as a scaffold when we mount a working platform thereon.
The tower crane and scaffolds of our invention titled "Telescopic tower crane and scaffold" are illustrated with the drawings and figures provided in the following 10 pages.
Figure: 1/10 - Telescopic facade scaffold with double ropes.
Figure: 2/10 - Telescopic ceiling and facade scaffold with single rope.
Figure: 3/10 - Telescopic tower crane.
Figure: 4/10 - Telescoped appearance of telescopic steel cages and positions of the lifting and transfer pulleys.
Figure: 5/10 - Inner and outer pulleys that enable steel cages to operate without any space therebetween.
Figure: 6/10 - Open position of the safety lock when the there is load acting on the rope.
Figure: 7/10 - The view wherein the safety lock has locked the steel cages when the rope is broken.
Figure: 8/10 - The mechanism which unloads the rope by fixing the steel cages of the raised tower.
Figure: 9/10 - Retracted state of the spring pin that fixes the steel cages.
Figure: 10/10 - Position of the drums of the double rope tower and the connection form of its lifter legs. Part: - 1 - Working platform of the double rope tower.
Part: - 2 - Steel cages.
Part: - 3 - Lifter legs.
Part: - 4 - Drums disposed under the double rope tower.
Part: - 5 - Reducer.
Part: - 6 - Single rope ceiling scaffold platform.
Part: - 7 - Pneumatic tire. Part: - 8 -
Part: - 9 -
Part: - 10 -
Part: - 1 1 -
Part: - 12 -
Part: - 13 -
Part: - 14 -
Part: - 15 -
Part: - 16 -
Part: - 17 -
Part: - 18 -
Part: - 19 -
Part: - 20 -
Part: - 21 -
Part: - 22 -
Part: - 23
wedged by the outer
Part - 24 - Steel pin that locks when the cages are wedged.
Part - 25 - Lock pin spring.
Part - 26 - Bevel gears that convey the movement of the reducer to the drums. Part - 27 - Drums that are rotated by the bevel gears which are placed on the sides of the double rope tower.
Out telescopic tower crane and scaffold which we have tried to illustrate above with the numbered figures and parts is comprised of a tower whose system operation principle is the same. A steel rope is fastened under the innermost of the telescopic cages wherein support pulleys are provided on the inside of the upper part (16) and the outside of the lower part (17) thereof. The steel rope; which is wound around the spring pulley (10) that is located on the upper part of the outer cage, and wound around the transfer pulley (1 1) located on the lower part of the same cage, then transferred to the outer part and is wound around the outer upper spring pulley (10), then wound around the transfer pulley (1 1 ) under the same cage and is wound this way until the outermost cage; is tied to the lower drum (4) after the upper spring pulley of the outermost cage. The rope, which is pulled by the worm gear reducer, elevates the cages upwards, starting from the innermost cage. This elevation continues until the wedging part located at the bottom of the cage reaches the wedge block (22) located on the outer cage. Since the function of the transfer pulley located under the inner cage wedged with an outer cage is finished, the wedged cages start to ascend together by means of the outer upper spring pulley. Unless the ascending process is not stopped, it continues until the cage inside the outermost fixed cage is wedged.
The necessary safety and locking precautions are taken for our telescopic tower, whose operation i.e. elevation system is described above, against any adverse events that might occur during elevation or operation. In our tower crane or scaffold that is raised by means of winding the steel ropes around the drum by the worm gear reducer; since the spring lock control (18) that will ascend in the event of a rope (20) breakage will release the eccentric spring lock puller (21), the spring lock pin ( 19) will be fastened to the nearest lock rib and thereby lock each cage from four corners thereof and prevent them from descending. This arrangement will be enabled in cases where the rope comes loose, as in the case of rope breakage, or the reducer gear tooth is abraded, or the drum runs idle.
When the cages, which ascend starting from the innermost cage, are lifted 8-10 cm upon being wedged by the outer cage; the spring pin (24), which is deployed on the upper part of the outer cage by being aligned with the bottom of the inner cage, proceeds and holds the inner cage from four corners thereof. The cages will be locked to each other until the steel pin roller tappet (23) retracts the steel pin (24) due to the pressure it is exposed to when an outer cage fits into its place. Since when the cages are descending they start from the bottom, when our cage which has ascended from the bottom to a certain point descends and exposes the steel pin roller tappet (23) to a pressure and we do not have the steel pin (24) retracted (when we fix the two cages by means of the wedges that we introduce in between them from outside), all of the cages will be locked and there will not remain any load on the rope. In this situation, when we reverse the drum a little and thereby enable the fixed pulley holder and the spring lock control (18) to rise, we allow the spring lock pins to be enabled as well and to perform locking operation.
Since we also have to lock the tower that we will use as a scaffold at the working height, an elevator that will serve for carrying materials should be mounted to the top of the tower.
Upon dismantling of the boom and platform, our nested (lowered) telescopic tower will have the height suitable to be carried by the trailer provided thereunder. Our telescopic tower, which is brought to the working area by being pulled, is brought to the bascule upon opening the foldable lifter legs (3) thereof and its load on the carrying tires is unloaded. In addition to providing studs from the legs to the fixed cage at the bottom, the necessary precautions are taken to prevent it from falling off by putting weights on the legs.

Claims

1. Telescopic tower crane, characterized in that rectangular telescopic steel cages ascend telescopically by means of pulleys via winding of steel rope around the drum via a worm gear reducer.
2. Telescopic tower crane, characterized in that rectangular cages are brought to U shape with single-sided extension and to H shape with double-sided extensions and thereby rope or ropes are allowed to operate through the gap that is formed.
3. Telescopic tower crane, characterized in that the double-sided steel extensions at the bottom of the inner cages abut to the wedging blocks on the upper part of the outer cages and thereby elevate the outer cage together with them.
4. Telescopic tower crane, characterized in that, excluding the innermost and the outermost cages; on the upper part of each cage there is provided a flat pulley fixed to the spring lock control that will lift an inner cage and on the lower part of each cage, a rope transfer pulley at an angled position which transfers the rope to an outer flat pulley.
5. Telescopic tower crane, characterized in that there is an automatic lock assembly which enables the cages to be locked to each other and prevents descending thereof when the rope or ropes break while the cages are being elevated or after they have been elevated.
6. Telescopic tower crane, characterized in that it is allowed to work with the boom at the top thereof upon locking of all of the cages at the point where the crane is stopped after it is raised, when the steel rope is unloaded.
7. Telescopic tower crane, characterized in that it can also be used as a moveable telescopic scaffold by mounting a working platform instead of the boom at the top.
8. Telescopic tower crane, characterized in that it can also be used as a moveable scaffold for facade works by means of a working platform suspended on its boom.
9. Telescopic tower crane, characterized in that, provided that the system remains the same, small size scaffolds can also be made which will work at heights of 8-10 meters with a single rope and which can be elevated electrically or by hand torque.
PCT/IB2011/054823 2010-10-27 2011-10-31 Telescopic tower crane and scaffold WO2012056435A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TR2010/08875A TR201008875A2 (en) 2010-10-27 2010-10-27 Telescopic tower crane and pier.
TR2010/08875 2010-10-27

Publications (1)

Publication Number Publication Date
WO2012056435A1 true WO2012056435A1 (en) 2012-05-03

Family

ID=45464018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/054823 WO2012056435A1 (en) 2010-10-27 2011-10-31 Telescopic tower crane and scaffold

Country Status (2)

Country Link
TR (1) TR201008875A2 (en)
WO (1) WO2012056435A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103723638A (en) * 2014-01-13 2014-04-16 中联重科股份有限公司 Climbing frame of tower crane and tower crane
JP2014227296A (en) * 2013-05-27 2014-12-08 清水建設株式会社 Holding mechanism for telescopic mast
CN106629421A (en) * 2016-12-19 2017-05-10 谢国贤 Swing arm tower crane provided with integrated hoisting arm
CN106915699A (en) * 2017-04-27 2017-07-04 合肥智慧龙图腾知识产权股份有限公司 A kind of architectural engineering tower crane with lock function
CN107188050A (en) * 2017-06-23 2017-09-22 四川庞源机械工程有限公司 A kind of crane with protective effect
CN107399679A (en) * 2017-09-22 2017-11-28 张家港沙工科技服务有限公司 A kind of high stability tower crane
CN107601297A (en) * 2017-09-19 2018-01-19 安徽骏达起重机械有限公司 Overturning-preventing derrick crane
US10526802B2 (en) 2016-12-28 2020-01-07 Curt Wylde Scaffold extensions
CN111153332A (en) * 2020-02-27 2020-05-15 徐州建机工程机械有限公司 Tower crane locking control method and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB383305A (en) * 1931-01-15 1932-11-17 Mario Tamini Improvements in and relating to portable scaffolding and like elevated-platform devices
US3045837A (en) * 1959-12-23 1962-07-24 Liebherr Hans Rotary tower crane
FR1414051A (en) * 1964-09-02 1965-10-15 Ponton Freres Et Cie Multiple winch for telescopic type site vending machines
FR2172044A1 (en) * 1972-02-17 1973-09-28 Cadillon Roger
JPS5356678U (en) * 1976-09-29 1978-05-15
DE3445910A1 (en) * 1984-12-15 1986-06-26 Heinrich Stefan Auxiliary building machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB383305A (en) * 1931-01-15 1932-11-17 Mario Tamini Improvements in and relating to portable scaffolding and like elevated-platform devices
US3045837A (en) * 1959-12-23 1962-07-24 Liebherr Hans Rotary tower crane
FR1414051A (en) * 1964-09-02 1965-10-15 Ponton Freres Et Cie Multiple winch for telescopic type site vending machines
FR2172044A1 (en) * 1972-02-17 1973-09-28 Cadillon Roger
JPS5356678U (en) * 1976-09-29 1978-05-15
DE3445910A1 (en) * 1984-12-15 1986-06-26 Heinrich Stefan Auxiliary building machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014227296A (en) * 2013-05-27 2014-12-08 清水建設株式会社 Holding mechanism for telescopic mast
CN103723638A (en) * 2014-01-13 2014-04-16 中联重科股份有限公司 Climbing frame of tower crane and tower crane
CN106629421A (en) * 2016-12-19 2017-05-10 谢国贤 Swing arm tower crane provided with integrated hoisting arm
US10526802B2 (en) 2016-12-28 2020-01-07 Curt Wylde Scaffold extensions
CN106915699A (en) * 2017-04-27 2017-07-04 合肥智慧龙图腾知识产权股份有限公司 A kind of architectural engineering tower crane with lock function
CN107188050A (en) * 2017-06-23 2017-09-22 四川庞源机械工程有限公司 A kind of crane with protective effect
CN107601297A (en) * 2017-09-19 2018-01-19 安徽骏达起重机械有限公司 Overturning-preventing derrick crane
CN107399679A (en) * 2017-09-22 2017-11-28 张家港沙工科技服务有限公司 A kind of high stability tower crane
CN111153332A (en) * 2020-02-27 2020-05-15 徐州建机工程机械有限公司 Tower crane locking control method and system

Also Published As

Publication number Publication date
TR201008875A2 (en) 2012-05-21

Similar Documents

Publication Publication Date Title
US3921362A (en) Method of and means for multi-story building construction
US8584429B2 (en) Tower erection system and method
US6401863B1 (en) Multi-purpose portable davit anchoring system
EP1677007A2 (en) Wind turbine with detachable crane and auxiliary boom and crane assembly procedure
AU2013334190B2 (en) Hoisting platform system
EP2490973B1 (en) Method in the manufacture of an elevator
US3789565A (en) Method and system of erecting tower buildings
KR20130105536A (en) Motorized height access device for tower cranes
US20100281818A1 (en) Method for building wind turbine tower
KR20070116222A (en) Clamp for a construction apparatus
MX2013010124A (en) Method for accessing the outer surface of wind turbine towers and device for use with this method.
US9388020B2 (en) Method and an elevator arrangement
CN102212630B (en) Construction method for replacing cooling wall of blast furnace by utilizing movable hanging scaffold
JPH0585681A (en) Elevator hoist way work platform and installation method for elevator system structual part
MX2014014014A (en) Self-climbing telescopic crane and method for mounting pre-fabricated concrete towers.
US9206020B2 (en) Work platform for an overhead crane
CA1063948A (en) Transporter for slab casting tables
CN201670702U (en) Manual lifting operation equipment
US20100044330A1 (en) Wind turbine erector
US7971408B2 (en) Stairtower and method for erecting the same
AU2003288829B2 (en) Concrete slab lifting system
KR101794085B1 (en) Construction system and method for multi-floor buildings
JP6296249B2 (en) Very large elevator for building large ships and offshore plants
US6039194A (en) Mobile roof crane
JP3172719B2 (en) Building construction safety fence

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11805594

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIFGTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DD 06/08/13)

122 Ep: pct app. not ent. europ. phase

Ref document number: 11805594

Country of ref document: EP

Kind code of ref document: A1