EP0855361A1 - Mâture télescopique pour grue à tour - Google Patents
Mâture télescopique pour grue à tour Download PDFInfo
- Publication number
- EP0855361A1 EP0855361A1 EP97420237A EP97420237A EP0855361A1 EP 0855361 A1 EP0855361 A1 EP 0855361A1 EP 97420237 A EP97420237 A EP 97420237A EP 97420237 A EP97420237 A EP 97420237A EP 0855361 A1 EP0855361 A1 EP 0855361A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mast
- faces
- crane
- elements
- oblique
- 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.)
- Granted
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
- B66C23/346—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
- B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements
Definitions
- the present invention relates to cranes with tower, and more particularly to a mast structure telescopic type for tower crane.
- the invention relates to mast cranes telescopic, whose mast consists of two or three mast elements, or even more numerous elements, mounted sliding inside each other so that form a telescopic, extendable structure or retractable vertically.
- the elements of a telescopic crane mast turn must ensure the transmission of forces during of the crane work, as well as the continuity of the transmission of forces during telescoping; these latest efforts include normal efforts, shear forces, bending moments and moments of torsion. Guidance and centering of the mast elements with respect to the others, as well as the locking of the mast elements with each other in the working position.
- the mast elements of cranes in turn are made of wire mesh.
- Telescopic masts also appeared, the elements have a tubular or box configuration, with solid side faces.
- telescopic masts whose elements consist of horizontal section boxes square or rectangular, so with four side faces, the mast elements being guided relative to the others by means of skates or rollers.
- French patent application N ° 2404754 concerns a tool holder or some kind of antenna telescopic, with only two parts telescopable.
- Such a structure can be compared to a beam embedded at its base and subjected to stresses significant bending, due to wind, and to low compression, since it is not intended for lifting of loads.
- This document can therefore be compared to previous, so it doesn't solve the problems specific to the present invention.
- the telescopic structure of French document N ° 2404754 has tubular elements of horizontal section circular, with no relative blocking in rotation, and is therefore not suitable for taking up significant torsional forces applied to the masts of tower cranes.
- the particular technical solution of the the aforementioned French document is obviously not applicable to a mast comprising more than two elements telescopable.
- the present invention aims to improve the telescopic masts composed of mast elements in box, by providing a mast whose elements have an optimized section, so as to improve it mechanical resistance, in particular by reducing the setting in the wind, while ensuring good guidance of the elements of mast relative to each other, and especially by being capable of resisting torsional forces and compression to which such a structure is subjected, what whatever the number of its elements.
- the invention essentially has for object a telescopic mast for crane, composed of several mast elements slidably mounted one at a time the interior of the others and each having a structure in a box, this mast being characterized in that the box mast elements each have a section polygonal in shape with more than four sides, determined by lateral faces parallel and / or perpendicular to the front-rear direction of the crane, and side faces intermediate, oblique to this direction front-rear, said mast comprising means for guiding the mast elements relative to each other others, located on oblique lateral faces of these mast elements, and automatic locking means said mast elements with each other, in predetermined relative positions, which are arranged on lateral faces parallel and / or perpendicular to the front-rear direction of the crane.
- the elements of box mast each has a shaped section dodecagonal, determined by two opposite side faces parallel to the front-rear direction of the crane, a front side face and rear side face perpendicular to the front-rear direction of the crane, and eight oblique faces, divided into four pairs of adjacent oblique faces connecting, two by two, the faces previous side.
- the dodecagonal section is close to the section of optimal resistance which is that of a section tube round, and a mast which has such a section dodecagonal has, with identical resistance, a reduced size and weight compared to a mast square or rectangular section. Resistance to face warping is also improved, which removes the need for stiffeners.
- the mast structure object of the invention also has the advantage of easier manufacturing and more economical, either by cold bending a sheet, or by assembling sheets corresponding to the various faces.
- the sufficiently numerous side faces of the elements mast of polygonal section allow to dissociate well the guide means and the locking means.
- the location of the guide means on the oblique faces provides self-centered guidance in the plane vertical center of the crane, with clearances, in preventing any rotation of an interior mast element by relative to an external mast element, while the mast interior is subjected to sharp forces.
- all of these guide shoes are constituted by a sliding plate covering substantially the entire width of the oblique face corresponding, to reduce the contact pressure to a minimum value, the plate being covered with a synthetic coating reducing the coefficient of friction, and also removing the need for a lubrication.
- the side games are canceled by the contact of the skates on the corresponding oblique faces, and the front clearances and rear are caught by "wedge phenomenon", which allows self-centered guidance.
- the particular means of guidance and locking allow to dissociate the functions of embedding and guidance which are subjected to efforts of a nature different, and thereby optimize the achievement of each of these functions, while allowing the transition from one to the other.
- the structure of these means makes visible, from the ground, the maneuvers of locking and unlocking.
- the crane still has a boom dispenser 10, foldable, which is linked to the top of the mast 6 along a hinge axis 11, and which is held in a horizontal position by a device retainer 12, connected to the rear part of the chassis turning 2.
- the present invention is more concerned particularly to the structure of the telescopic mast 6, the elements of which are shown in more detail in Figures 2 and following.
- an interior mast element and an external mast element which in the example illustrated are respectively the second mast element 8 and the first mast element 7 (but which could be also the third and second elements).
- first four guide shoes 26, 27, 28 and 29 are provided at the base of the inner mast element 8. These guide shoes 26, 27, 28 and 29 are fixed, respectively, on the four oblique faces 18, 19, 20 and 21 of the inner mast element 8, outside of this item 8.
- Each of the guide pads 26 to 33 has, as shown in Figures 3 and 4, a width substantially equal to that of the oblique face 18, 19, 20 or 21 next to which it is located, and with which he is called to cooperate.
- Figure 2 also illustrates, at A and B, the support zones between the pads of an element of mast and the corresponding faces of the other element of mast.
- the inner mast element 8 can be telescoped, until reaching with respect to the external mast element 7 a predetermined vertical position, in which it is automatically locked with this external element 7.
- locking means are provided, shown mainly in Figures 5, 6 and 7.
- These means include a blocking assembly upper, composed of two mounting pads 34 and 35 and two recessed housings 36 and 37. Both mounting pads 34 and 35 are arranged outside of the two lateral faces, respectively straight 16 and left 17, of the inner mast element 8; these skates 34 and 35 are equipped with engagement and clearance ramps 38 and 39.
- the two mounting housings 36 and 37 are arranged inside the side faces, respectively right 16 and left 17, of the outer mast element 7, at the top of this element 7.
- the locking means also include a lower locking assembly, consisting of two others mounting pads 40 and 41 and two other housings 42 and 43.
- the two 40 mounting pads and 41 are arranged towards the base of the mast element inside 8, outside the two lateral faces, respectively right 16 and left 17, of this element 8. These pads 40 and 41 are also provided with ramps of engagement and clearance 44 and 45.
- the two housings 42 and 43 are arranged inside the corresponding faces 16 and 17 of the mast element exterior 7.
- the upper blocking assembly is completed by two symmetrical locks 46 and 47, pivotally mounted at top of the outer mast element 7, around an axis of horizontal pivot 48 perpendicular to the median plane 13 and close to the upper edge of the rear face 15 of this item 7.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
- quatre patins de guidage situés à la base de l'élément de mât intérieur, et fixés extérieurement sur les faces obliques de cet élément adjacentes aux faces avant et arrière, et
- quatre autres patins de guidage situés au sommet de l'élément de mât extérieur, et fixés intérieurement sur les faces correspondantes de cet élément, c'est-à-dire ses faces obliques adjacentes aux faces avant et arrière.
- un ensemble de blocage supérieur, composé de deux patins latéraux d'encastrement disposés à l'extérieur des faces latérales, parallèles à la direction avant-arrière de la grue, de l'élément de mât intérieur, et de deux logements d'encastrement disposés à l'intérieur des faces correspondantes de l'élément de mât extérieur, au sommet de ce dernier,
- un ensemble de blocage inférieur, composé de deux autres patins latéraux d'encastrement disposés à l'extérieur des faces latérales, parallèles à la direction avant-arrière de la grue, de l'élément de mât intérieur, à la base de ce dernier, et de deux logements d'encastrement disposés à l'intérieur des faces correspondantes de l'élément extérieur,
- et deux verrous symétriques rabattables, articulés au sommet de l'élément de mât extérieur et commandés automatiquement lors du télescopage des éléments de mât, les verrous coopérant avec les patins et les logements d'encastrement de l'ensemble de blocage supérieur, en venant s'engager, une fois rabattus, respectivement entre les deux patins et les logements correspondants.
- un premier élément de mât 7, ou élément inférieur, articulé par sa base au châssis tournant 2,
- un deuxième élément de mât 8, ou élément intermédiaire, monté coulissant à l'intérieur du premier élément de mât 7, et
- un troisième élément de mât 9, ou élément supérieur, monté coulissant à l'intérieur du deuxième élément de mât 8.
Ainsi, chaque élément de mât 7, 8 ou 9 possède une face latérale avant 14 et une face latérale arrière 15, perpendiculaires au plan médian 13, une face latérale droite 16 parallèle au plan médian 13, et une face latérale gauche 17 également parallèle au plan médian 13. Les quatre premières faces latérales 14 à 17, précédemment définies, sont raccordées entre elles par des faces intermédiaires ou faces obliques, au nombre total de huit, désignées 18 à 25. On peut distinguer ici :
- quatre faces obliques 18, 19, 20 et 21, adjacentes aux faces avant 14 et arrière 15, et formant des angles de 60° par rapport au plan médian 13 ;
- quatre autres faces obliques 22, 23, 24 et 25, adjacentes aux faces latérales droite 16 et gauche 17, et formant des angles de 30° par rapport au plan médian 13.
- en prévoyant une section en forme de dodécagone irrégulier (angles et/ou côtés inégaux), au lieu d'une section en forme de dodécagone régulier (angles et côtés égaux),
- plus généralement en prévoyant d'autres sections polygonales, régulières ou non, à plus de quatre côtés,
- en appliquant l'invention à une mâture télescopique composée seulement de deux éléments, ou composée de plus de trois éléments,
- en modifiant le détail des moyens de guidage et de verrouillage.
Claims (5)
- Mâture télescopique (6) pour grue à tour, composée de plusieurs éléments de mât (7, 8, 9) montés coulissants les uns à l'intérieur des autres et présentant chacun une structure en caisson, caractérisée en ce que les éléments de mât (7, 8, 9) en caisson possèdent, chacun, une section de forme polygonale à plus de quatre côtés, déterminée par des faces latérales (14 à 17) parallèles et/ou perpendiculaires à la direction avant-arrière (13) de la grue, et des faces latérales (18 à 25) intermédiaires, obliques par rapport à cette direction avant-arrière (13), ladite mâture (6) comportant des moyens (26 à 33) de guidage des éléments de mât (7, 8, 9) les uns par rapport aux autres, situés sur des faces latérales obliques (18 à 21) de ces éléments de mât (7, 8, 9), et des moyens (34 à 48) de verrouillage automatique desdits éléments de mât (7, 8, 9) les uns avec les autres, dans des positions relatives prédéterminées, qui sont disposés sur des faces latérales (16, 17) parallèles et/ou perpendiculaires à la direction avant-arrière (13) de la grue.
- Mâture télescopique pour grue à tour selon la revendication 1, caractérisée en ce que les éléments de mât (7, 8, 9) en caisson possèdent, chacun, une section de forme dodécagonale, déterminée par deux faces latérales opposées (16, 17) parallèles à la direction avant-arrière (13) de la grue, une face latérale avant (14) et une face latérale arrière (15) perpendiculaires à la direction avant-arrière (13) de la grue, et huit faces obliques (18 à 25), réparties en quatre paires de faces obliques adjacentes reliant, deux à deux, les faces latérales précédentes (14 à 17).
- Mâture télescopique pour grue à tour selon la revendication 2, caractérisée en ce que les moyens de guidage comprennent, en combinaison, pour un élément de mât intérieur et un élément de mât extérieur associés :quatre patins de guidage (26 à 29) situés à la base de l'élément de mât intérieur, et fixés extérieurement sur les faces obliques (18 à 21) de cet élément adjacentes aux faces avant (14) et arrière (15), etquatre autres patins de guidage (30 à 33) situés au sommet de l'élément de mât extérieur, et fixés intérieurement sur les faces obliques (18 à 21) de cet élément adjacentes aux faces avant (14) et arrière (15).
- Mâture télescopique pour grue à tour selon la revendication 3, caractérisée en ce que les patins de guidage (26 à 33) sont constitués par une platine de glissement couvrant sensiblement toute la largeur de la face oblique correspondante (18 à 21), la platine étant recouverte d'un revêtement en matière synthétique réduisant le coefficient de frottement.
- Mâture télescopique pour grue à tour selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les moyens de verrouillage automatique des éléments de mât (7, 8, 9) les uns avec les autres comprennent, en combinaison, pour un élément de mât intérieur et un élément de mât extérieur associés :un ensemble de blocage supérieur, composé de deux patins latéraux d'encastrement (34, 35) disposés à l'extérieur des faces latérales (16, 17), parallèles à la direction avant-arrière (13) de la grue, de l'élément de mât intérieur, et de deux logements d'encastrement (36, 37) disposés à l'intérieur des faces correspondantes (16, 17) de l'élément de mât extérieur, au sommet de ce dernier,un ensemble de blocage inférieur, composé de deux autres patins latéraux d'encastrement (40, 41) disposés à l'extérieur des faces latérales (16, 17), parallèles à la direction avant-arrière (13) de la grue, de l'élément de mât intérieur, à la base de ce dernier, et de deux logements d'encastrement (42, 43) disposés à l'intérieur des faces correspondantes (16, 17) de l'élément extérieur,et de deux verrous symétriques rabattables (46, 47), articulés (en 48) au sommet de l'élément de mât extérieur et commandés automatiquement lors du télescopage des éléments de mât (7, 8, 9), les verrous (46, 47) coopérant avec les patins (34, 35) et les logements d'encastrement (36, 37) de l'ensemble de blocage supérieur, en venant s'engager, une fois rabattus, respectivement entre les deux patins (34, 35) et les logements (36, 37) correspondants.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9616159 | 1996-12-23 | ||
FR9616159A FR2757497B1 (fr) | 1996-12-23 | 1996-12-23 | Mature telescopique pour grue a tour |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0855361A1 true EP0855361A1 (fr) | 1998-07-29 |
EP0855361B1 EP0855361B1 (fr) | 2002-08-14 |
Family
ID=9499256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970420237 Expired - Lifetime EP0855361B1 (fr) | 1996-12-23 | 1997-12-19 | Mâture télescopique pour grue à tour |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0855361B1 (fr) |
JP (1) | JPH10218562A (fr) |
BR (1) | BR9706416A (fr) |
DE (1) | DE69714696T2 (fr) |
ES (1) | ES2180910T3 (fr) |
FR (1) | FR2757497B1 (fr) |
RU (1) | RU2189935C2 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6439408B1 (en) * | 1999-04-23 | 2002-08-27 | Potain | Crane with jib having multiple functions |
DE202013000277U1 (de) * | 2013-01-11 | 2014-04-14 | Liebherr-Werk Biberach Gmbh | Turmdrehkran |
EP3184482A1 (fr) | 2015-12-23 | 2017-06-28 | Manitowoc Crane Group France | Mât télescopique et grue à tour à dépliage et repliage automatiques comprenant un tel mât télescopique |
EP3184481A1 (fr) | 2015-12-23 | 2017-06-28 | Manitowoc Crane Group France | Grue à tour à dépliage et repliage automatiques et comprenant un mat et une flèche décalée par rapport au mat |
EP3184480A1 (fr) | 2015-12-23 | 2017-06-28 | Manitowoc Crane Group France | Grue à tour comprenant un mât télescopique |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004014689B4 (de) * | 2004-03-25 | 2012-05-16 | Blowup Media Gmbh | Trägergerüst für eine Informations- und/oder Werbefläche |
CN103241663A (zh) * | 2013-05-07 | 2013-08-14 | 三一帕尔菲格特种车辆装备有限公司 | 一种起重机、起重机的伸缩臂及起重机的节臂 |
ES2606786B1 (es) | 2015-09-23 | 2018-01-31 | Esteyco S.A.P. | Dispositivo de guiado para montaje de torres eólicas |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2329580A1 (fr) * | 1975-10-28 | 1977-05-27 | Warner Swasey Co | Fleche de grue |
FR2404754A1 (fr) * | 1977-10-01 | 1979-04-27 | Ver Flugtechnische Werke | Dispositif porte-outils, de hauteur reglable |
US4459786A (en) * | 1981-10-27 | 1984-07-17 | Ro Corporation | Longitudinally bowed transversely polygonal boom for cranes and the like |
FR2586240A1 (fr) * | 1985-08-13 | 1987-02-20 | Mannesmann Ag | Colonne telescopique |
DE3628782A1 (de) * | 1986-08-25 | 1988-03-03 | Hans H Heller | Kamerakranwagen fuer film- oder fernsehaufnahmen |
EP0362680A2 (fr) * | 1988-10-03 | 1990-04-11 | Peter Hürlimann | Bras télescopique déployable et rétractable |
-
1996
- 1996-12-23 FR FR9616159A patent/FR2757497B1/fr not_active Expired - Lifetime
-
1997
- 1997-12-19 EP EP19970420237 patent/EP0855361B1/fr not_active Expired - Lifetime
- 1997-12-19 ES ES97420237T patent/ES2180910T3/es not_active Expired - Lifetime
- 1997-12-19 DE DE1997614696 patent/DE69714696T2/de not_active Expired - Lifetime
- 1997-12-19 BR BR9706416A patent/BR9706416A/pt not_active Application Discontinuation
- 1997-12-22 RU RU97122166A patent/RU2189935C2/ru not_active IP Right Cessation
- 1997-12-24 JP JP37013197A patent/JPH10218562A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2329580A1 (fr) * | 1975-10-28 | 1977-05-27 | Warner Swasey Co | Fleche de grue |
FR2404754A1 (fr) * | 1977-10-01 | 1979-04-27 | Ver Flugtechnische Werke | Dispositif porte-outils, de hauteur reglable |
US4459786A (en) * | 1981-10-27 | 1984-07-17 | Ro Corporation | Longitudinally bowed transversely polygonal boom for cranes and the like |
FR2586240A1 (fr) * | 1985-08-13 | 1987-02-20 | Mannesmann Ag | Colonne telescopique |
DE3628782A1 (de) * | 1986-08-25 | 1988-03-03 | Hans H Heller | Kamerakranwagen fuer film- oder fernsehaufnahmen |
EP0362680A2 (fr) * | 1988-10-03 | 1990-04-11 | Peter Hürlimann | Bras télescopique déployable et rétractable |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6439408B1 (en) * | 1999-04-23 | 2002-08-27 | Potain | Crane with jib having multiple functions |
DE202013000277U1 (de) * | 2013-01-11 | 2014-04-14 | Liebherr-Werk Biberach Gmbh | Turmdrehkran |
CN103922229A (zh) * | 2013-01-11 | 2014-07-16 | 比伯拉赫利勃海尔-维克股份有限公司 | 塔式旋臂起重机 |
CN103922229B (zh) * | 2013-01-11 | 2016-04-27 | 比伯拉赫利勃海尔-维克股份有限公司 | 塔式旋臂起重机 |
EP3184482A1 (fr) | 2015-12-23 | 2017-06-28 | Manitowoc Crane Group France | Mât télescopique et grue à tour à dépliage et repliage automatiques comprenant un tel mât télescopique |
EP3184481A1 (fr) | 2015-12-23 | 2017-06-28 | Manitowoc Crane Group France | Grue à tour à dépliage et repliage automatiques et comprenant un mat et une flèche décalée par rapport au mat |
EP3184480A1 (fr) | 2015-12-23 | 2017-06-28 | Manitowoc Crane Group France | Grue à tour comprenant un mât télescopique |
CN106904542A (zh) * | 2015-12-23 | 2017-06-30 | 马尼托沃克起重机集团(法国)公司 | 伸缩式桅杆与包括此伸缩式桅杆的自动展开与折叠的塔式起重机 |
FR3046151A1 (fr) * | 2015-12-23 | 2017-06-30 | Manitowoc Crane Group France | Mat telescopique et grue a tour a depliage et repliage automatiques comprenant un tel mat telescopique |
FR3046150A1 (fr) * | 2015-12-23 | 2017-06-30 | Manitowoc Crane Group France | Grue a tour comprenant un mat telescopique |
CN106927374A (zh) * | 2015-12-23 | 2017-07-07 | 马尼托沃克起重机集团(法国)公司 | 包括伸缩桅杆的塔式起重机 |
CN106904542B (zh) * | 2015-12-23 | 2019-11-05 | 马尼托沃克起重机集团(法国)公司 | 伸缩式桅杆与包括此伸缩式桅杆的自动展开与折叠的塔式起重机 |
CN106927374B (zh) * | 2015-12-23 | 2019-12-03 | 马尼托沃克起重机集团(法国)公司 | 包括伸缩桅杆的塔式起重机 |
US10577228B2 (en) | 2015-12-23 | 2020-03-03 | Manitowoc Crane Group France | Automatic unfolding and folding tower crane comprising a mast and a jib shifted with respect to the mast |
Also Published As
Publication number | Publication date |
---|---|
DE69714696T2 (de) | 2003-05-08 |
ES2180910T3 (es) | 2003-02-16 |
BR9706416A (pt) | 1999-06-29 |
FR2757497B1 (fr) | 1999-02-12 |
FR2757497A1 (fr) | 1998-06-26 |
JPH10218562A (ja) | 1998-08-18 |
RU2189935C2 (ru) | 2002-09-27 |
EP0855361B1 (fr) | 2002-08-14 |
DE69714696D1 (de) | 2002-09-19 |
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