FR2841887A1 - Jib crane for moving objects in a horizontal plane has vertical tower to which main arm is connected for rotation about main axis, and second arm connected to main arm for rotation about second axis, adjustable via tie rod - Google Patents
Jib crane for moving objects in a horizontal plane has vertical tower to which main arm is connected for rotation about main axis, and second arm connected to main arm for rotation about second axis, adjustable via tie rod Download PDFInfo
- Publication number
- FR2841887A1 FR2841887A1 FR0208584A FR0208584A FR2841887A1 FR 2841887 A1 FR2841887 A1 FR 2841887A1 FR 0208584 A FR0208584 A FR 0208584A FR 0208584 A FR0208584 A FR 0208584A FR 2841887 A1 FR2841887 A1 FR 2841887A1
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- France
- Prior art keywords
- axis
- main arm
- arm
- rotation
- adjustable
- 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.)
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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
- 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
- B66C23/02—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 with non-adjustable and non-inclinable jibs mounted solely for slewing movements
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- 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
- B66C23/02—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 with non-adjustable and non-inclinable jibs mounted solely for slewing movements
- B66C23/027—Pivot axis separated from column axis
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- 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
- B66C23/04—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 with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Potence à deux bras horizontaux La présente invention concerne une potenceThe present invention relates to a bracket
à bras pivotants pour déplacer des objets dans un plan horizontal. On connaît des potences comportant un ft vertical supportant un bras principal relié au ft par un premier axe vertical de rotation, ce bras principal étant relié à un bras satellite par un second axe vertical de rotation, l'extrémité libre de ce bras satellite étant destinée à supporter une with pivoting arms for moving objects in a horizontal plane. There are known brackets comprising a vertical ft supporting a main arm connected to the ft by a first vertical axis of rotation, this main arm being connected to a satellite arm by a second vertical axis of rotation, the free end of this satellite arm being intended to endure a
charge à déplacer.load to be moved.
Ces bras sont soumis à des efforts de flexion et de torsion qui affectent la verticalité des deux axes de rotation précités, ce qui engendre une déviation de la trajectoire des bras par rapport à un plan horizontal. A cet effet, on connaît des potences à deux bras, dans lesquelles la verticalité des deux axes de rotation est réglable. Chacun de ces deux axes These arms are subjected to bending and twisting forces which affect the verticality of the two aforementioned axes of rotation, which generates a deviation of the trajectory of the arms relative to a horizontal plane. To this end, two-arm brackets are known, in which the verticality of the two axes of rotation is adjustable. Each of these two axes
comprend un palier fixe et un palier réglable. includes a fixed bearing and an adjustable bearing.
Cependant, la présence de ces moyens de réglage notamment ceux situés à proximité du second axe entre le bras principal et le bras satellite augmente However, the presence of these adjustment means, in particular those located near the second axis between the main arm and the satellite arm increases
l'inertie de l'équipage mobile.the inertia of the moving crew.
L'inconvénient qui en résulte est particulièrement sensible dans le cas de portées importantes. Le but de la présente invention est de remédier à cet inconvénient en créant une potence à deux bras à axes réglables dont l'inertie est réduite et qui de ce fait est compatible avec des portées importantes, The resulting drawback is particularly noticeable in the case of large spans. The object of the present invention is to remedy this drawback by creating a bracket with two arms with adjustable axes whose inertia is reduced and which therefore is compatible with large spans,
par exemple atteignant 5 m.for example reaching 5 m.
Suivant l'invention, la potence comportant un ft vertical supportant un bras principal relié au ft par un premier axe vertical de rotation, ce bras principal étant relié à un bras satellite par un second axe vertical de rotation, l'extrémité libre de ce bras satellite étant destinée à supporter une charge à déplace, le premier axe comprenant deux paliers, la position de l'un de ces paliers étant fixe et celle de l'autre étant réglable, est caractérisée en ce que la position du second axe est réglable d'une part par un tirant de longueur réglable pour compenser la flèche des bras sous l'effet de la charge, l'une des extrémités de ce tirant étant reliée au bras principal et dont l'autre extrémité est reliée au premier axe et d'autre part par des moyens de liaison réglables prévus entre le premier axe et l'extrémité adjacente du bras principal permettant de compenser la torsion du bras principal. Ainsi les moyens pour régler la verticalité du second axe de rotation et pour compenser la flèche et According to the invention, the bracket comprising a vertical ft supporting a main arm connected to the ft by a first vertical axis of rotation, this main arm being connected to a satellite arm by a second vertical axis of rotation, the free end of this arm satellite being intended to support a moving load, the first axis comprising two bearings, the position of one of these bearings being fixed and that of the other being adjustable, is characterized in that the position of the second axis is adjustable d firstly by a tie rod of adjustable length to compensate for the deflection of the arms under the effect of the load, one end of this tie rod being connected to the main arm and the other end of which is connected to the first axis and on the other hand by adjustable connecting means provided between the first axis and the adjacent end of the main arm making it possible to compensate for the torsion of the main arm. Thus the means for adjusting the verticality of the second axis of rotation and for compensating for the deflection and
l'inertie sont situés près du premier axe, c'est-àdire près du ft. the inertia are located near the first axis, i.e. near the ft.
En conséquence, grâce à l'invention, la potence est apte à déplacer des charges dans un plan Consequently, thanks to the invention, the bracket is able to move loads in a plane
horizontal avec des portées pouvant atteindre 5 m. horizontal with spans of up to 5 m.
Selon un mode de réalisation de l'invention, la position dudit palier est réglable par deux vis opposées vissées dans des parties fixes par rapport au ft, l'extrémité de ces vis étant en contact avec une partie mobile solidaire dudit palier, les deux vis opposées étant situées dans le plan du premier According to one embodiment of the invention, the position of said bearing is adjustable by two opposite screws screwed in parts fixed relative to the ft, the end of these screws being in contact with a movable part integral with said bearing, the two screws opposite being located in the plane of the first
axe et de l'axe du bras principal.axis and axis of the main arm.
Ces deux vis permettent ainsi de déplacer le palier et donc de régler la verticalité du premier axe. Selon une particularité de l'invention, les deux paliers du premier axe sont portés par deux pattes horizontales fixées au ft et l'extrémité du bras principal adjacente au ft est reliée à un tube vertical dont les extrémités sont montées en rotation sur des pivots solidaires chacun de l'une desdites pattes, la position de l'un desdits pivots étant réglable au moyen desdites vis, les extrémités du tube étant montées en rotation sur les pivots au These two screws thus make it possible to move the bearing and therefore to adjust the verticality of the first axis. According to a feature of the invention, the two bearings of the first axis are carried by two horizontal tabs fixed to the ft and the end of the main arm adjacent to the ft is connected to a vertical tube, the ends of which are mounted in rotation on integral pivots each of one of said legs, the position of one of said pivots being adjustable by means of said screws, the ends of the tube being rotatably mounted on the pivots at
moyen de roulements formant rotule.by means of bearings forming a ball joint.
Cette disposition permet de déplacer le pivot This arrangement allows the pivot to be moved
mobile et le tube par rapport au pivot fixe. mobile and the tube relative to the fixed pivot.
Selon une autre particularité avantageuse de l'invention, le bras principal est relié au tube par un axe de rotation horizontal solidaire dudit tube par deux flasques. La position de ces deux flasques par rapport audit tube peut être ajustée au moyen de vis disposées d'une manière telle qu'elles peuvent faire pivoter l'arbre principal autour de son axe afin de compenser la torsion susceptible d'être According to another advantageous feature of the invention, the main arm is connected to the tube by a horizontal axis of rotation integral with said tube by two flanges. The position of these two flanges relative to said tube can be adjusted by means of screws arranged in such a way that they can rotate the main shaft around its axis in order to compensate for the torsion which may be
exercée sur ledit arbre.exerted on said tree.
D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la Other characteristics and advantages of the present invention will appear more clearly on
lecture de la description suivante de plusieurs reading the following description of several
réalisations préférées de l'invention en référence aux dessins annexés correspondants dans lesquels - la figure 1 est une vue en élévation de la potence selon l'invention, - la figure 2 est une vue en plan de dessus de la potence selon la figure 1, - la figure 3 est une vue agrandie du détail A de la figure 1, - la figure 4 est une vue agrandie de la partie supérieure de la figure 3, - la figure 5 est une vue agrandie de la partie inférieure de la figure 3, - la figure 6 est une vue en coupe suivant le preferred embodiments of the invention with reference to the corresponding appended drawings in which - FIG. 1 is an elevation view of the bracket according to the invention, - FIG. 2 is a plan view from above of the bracket according to FIG. 1, - Figure 3 is an enlarged view of detail A of Figure 1, - Figure 4 is an enlarged view of the upper part of Figure 3, - Figure 5 is an enlarged view of the lower part of Figure 3, - Figure 6 is a sectional view along the
plan VI - VI de la figure 5.plan VI - VI of figure 5.
Les figures 1 et 2 représentent une potence comportant un ft vertical 1 supportant un bras principal 2 relié au ft 1 par un premier axe vertical X - X' de rotation, ce bras principal 2 étant relié à un bras satellite 3 par un second axe vertical Y -Y' de rotation. L'extrémité libre du bras satellite 3 est destinée à supporter une charge à déplacer. A cet effet, le bras satellite 3 porte un moteur électrique 4 ou un actionneur électrique ou pneumatique qui est relié à un système de câbles 5 et de poulie 6 pour commander le soulèvement et Figures 1 and 2 show a bracket comprising a vertical ft 1 supporting a main arm 2 connected to the ft 1 by a first vertical axis X - X 'of rotation, this main arm 2 being connected to a satellite arm 3 by a second vertical axis Y -Y 'of rotation. The free end of the satellite arm 3 is intended to support a load to be moved. To this end, the satellite arm 3 carries an electric motor 4 or an electric or pneumatic actuator which is connected to a system of cables 5 and of pulley 6 to control the lifting and
l'abaissement d'une charge.lowering a load.
Les bras principal 2 et satellite 3 s'étendent Main arms 2 and satellite 3 extend
dans un plan horizontal.in a horizontal plane.
Le bras principal 2 est susceptible de tourner suivant un angle de près de 3600 autour de l'axe X XI. Le bras satellite 3 est susceptible de tourner autour de l'axe Y -Y' suivant un angle définit par The main arm 2 is capable of rotating at an angle of almost 3600 around the axis X XI. The satellite arm 3 is capable of rotating around the axis Y -Y 'at an angle defined by
les positions extrêmes représentées sur la figure 2. the extreme positions shown in Figure 2.
Dans toutes les positions, les bras 2 et 3 subissent sous l'effet de la charge une flexion qui varie en fonction de la valeur de cette charge et de la position angulaire du bras satellite 3 par rapport In all positions, the arms 2 and 3 undergo under the effect of the load a bending which varies according to the value of this load and the angular position of the satellite arm 3 relative
au bras principal 2.main arm 2.
Le bras principal 2 subit également une torsion du fait de la position non alignée du bras satellite 3 comme montré par la figure 2. Dans l'exemple représenté, la portée totale des The main arm 2 is also twisted due to the non-aligned position of the satellite arm 3 as shown in FIG. 2. In the example shown, the total range of the
bras 2 et 3 atteint 5 m.arms 2 and 3 reaches 5 m.
Du fait de cette grande portée, on comprend que les efforts de flexion et de torsion exercés sur les bras 2 et 3, ont pour effet de modifier la Because of this large range, it is understood that the bending and torsional forces exerted on the arms 2 and 3, have the effect of modifying the
verticalité des axes X - X' et Y - Y'. verticality of axes X - X 'and Y - Y'.
On comprendra ainsi qu'il y a avantage à compenser ces efforts de flexion et de torsion afin de maintenir la verticalité desdits axes X - X' et Y It will thus be understood that there is an advantage in compensating for these bending and twisting forces in order to maintain the verticality of said axes X - X 'and Y
- Y.- Y.
A cet effet, le premier axe X - X' comprend deux paliers 7, 8 (voir figure 3), la position de l'un 7 de ces paliers étant fixe et celle de l'autre 8 étant réglable. Conformément à l'invention, la position du second axe Y Y' est réglable d'une part par un tirant 9 de longueur réglable pour compenser la flèche des bras 2, 3 sous l'effet de la charge. L'une des extrémités du tirant 9 est reliée en 10 au bras principal 2 et l'autre extrémité de ce tirant 9 est reliée au To this end, the first axis X - X 'comprises two bearings 7, 8 (see FIG. 3), the position of one 7 of these bearings being fixed and that of the other 8 being adjustable. According to the invention, the position of the second axis Y Y 'is adjustable on the one hand by a tie rod 9 of adjustable length to compensate for the deflection of the arms 2, 3 under the effect of the load. One end of the tie rod 9 is connected at 10 to the main arm 2 and the other end of this tie rod 9 is connected to the
premier axe X - XI.first axis X - XI.
Par ailleurs, des moyens de liaison réglables qui seront détaillés plus loin, prévus entre le premier axe X - X' et l'extrémité adjacente 2a du bras principal 2 permettent de compenser la torsion Furthermore, adjustable connection means which will be detailed below, provided between the first axis X - X 'and the adjacent end 2a of the main arm 2 make it possible to compensate for the torsion
exercée sur le bras principal 2.exerted on the main arm 2.
Dans l'exemple représenté sur les figures 1, 3 et 4, le palier 8 du premier axe X - X' dont la position In the example shown in Figures 1, 3 and 4, the bearing 8 of the first axis X - X 'whose position
est réglable est le palier supérieur. is adjustable is the upper level.
On voit notamment sur la figure 4, que la position dudit palier 8 est réglable par deux vis opposées 11, 12 vissées dans des parties 13, 14 fixes par rapport au ft 1. L'extrémité de ces vis 11, 12 est en contact avec une partie 15 solidaire du palier 8, mais libre par rapport à la patte 16 reliée au ft 1. Les deux vis opposées 11, 12 sont situées dans le plan du premier axe X - X' et de l'axe Z - Z' du bras It can be seen in particular in FIG. 4 that the position of said bearing 8 is adjustable by two opposite screws 11, 12 screwed into parts 13, 14 fixed relative to the ft 1. The end of these screws 11, 12 is in contact with a part 15 integral with the bearing 8, but free relative to the lug 16 connected to the ft 1. The two opposite screws 11, 12 are located in the plane of the first axis X - X 'and of the axis Z - Z' of the arms
principal 2.main 2.
On voit également sur les figures 1 et 3 que les deux paliers 7, 8 du premier axe X - X' sont portés par deux pattes horizontales 17, 16 fixées au ft 1 et que l'extrémité 2a du bras principal 2 adjacente au ft 1 est reliée à la partie inférieure d'un tube 18 vertical dont les extrémités sont montées en rotation sur des pivots 19, 20 solidaires chacun de l'une desdites pattes 17, 16. La position du pivot We also see in Figures 1 and 3 that the two bearings 7, 8 of the first axis X - X 'are carried by two horizontal tabs 17, 16 fixed to ft 1 and that the end 2a of the main arm 2 adjacent to ft 1 is connected to the lower part of a vertical tube 18 whose ends are rotatably mounted on pivots 19, 20 each secured to one of said legs 17, 16. The position of the pivot
supérieur 20 est réglable au moyen des vis 11, 12. upper 20 is adjustable by means of screws 11, 12.
Pour que le réglage ci-dessus soit possible, les extrémités opposées du tube 18 sont montées en rotation sur les pivots 19, 20 au moyen de roulements For the above adjustment to be possible, the opposite ends of the tube 18 are rotatably mounted on the pivots 19, 20 by means of bearings
22 formant rotule.22 forming a ball joint.
Comme montré d'autre part sur les figures 1, 3 et 4, le tirant 9 est relié au tube vertical 18 en un point situé près du palier supérieur 8 du premier axe X - X', au moyen d'une rotule 23 vissée sur l'extrémité du tirant 9 et bloquée sur cette extrémité par un écrou 24. Cette rotule 23 est retenue dans une cavité complémentaire 25 ménagée As shown on the other hand in Figures 1, 3 and 4, the tie rod 9 is connected to the vertical tube 18 at a point located near the upper bearing 8 of the first axis X - X ', by means of a ball joint 23 screwed onto the end of the tie rod 9 and locked on this end by a nut 24. This ball joint 23 is retained in a complementary cavity 25 formed
dans une partie 26 solidaire du tube vertical. in a part 26 integral with the vertical tube.
Par ailleurs, les moyens de liaison réglables permettant de compenser la torsion du bras principal 2 sont disposés entre le tube vertical 18 du premier axe X - X' et l'extrémité adjacente 2a du bras principal 2. Comme montré par les figures 5 et 6, le bras principal 2 est relié au tube 18 par un axe de rotation horizontal R - R' solidaire dudit tube 18 par deux flasques 27. La position de ces deux flasques 27 par rapport au tube 18 peut être ajustée au moyen de vis 28 disposées d'une manière telle qu'elles peuvent faire pivoter le bras principal 2 autour de son axe Z Z' afin de compenser la torsion Furthermore, the adjustable connection means making it possible to compensate for the torsion of the main arm 2 are arranged between the vertical tube 18 of the first axis X - X 'and the adjacent end 2a of the main arm 2. As shown in FIGS. 5 and 6 , the main arm 2 is connected to the tube 18 by a horizontal axis of rotation R - R 'integral with said tube 18 by two flanges 27. The position of these two flanges 27 relative to the tube 18 can be adjusted by means of screws 28 arranged in such a way that they can rotate the main arm 2 around its axis ZZ 'in order to compensate for the twist
susceptible d'être exercée sur ce bras 2. likely to be exerted on this arm 2.
Par ailleurs, des vis 29 sont prévues pour bloquer la rotation du bras principal 2 autour de l'axe horizontal R - R' et de l'axe Z - Z' du bras principal 2, après avoir réglé les moyens pour Furthermore, screws 29 are provided to block the rotation of the main arm 2 around the horizontal axis R - R 'and the axis Z - Z' of the main arm 2, after having adjusted the means for
compenser la flèche et la torsion.compensate for deflection and twist.
Pour régler la verticalité des axes X - X' et Y Y' des bras 2 et 3 de manière à compenser les efforts de flexion et de torsion exercés par une charge To adjust the verticality of the axes X - X 'and Y Y' of the arms 2 and 3 so as to compensate for the bending and torsional forces exerted by a load
donnée, on peut procéder comme suit. given, we can proceed as follows.
On commence par régler la verticalité de l'axe X - X' en agissant sur les vis 11 et 12 de façon à déplacer le pivot supérieur 20 vers la droite ou vers la gauche de la figure 4. Ce déplacement est possible grâce au jeu j existant dans la patte 16. Lorsque la position de réglage est obtenue, on bloque la partie en serrant les vis 30. On règle ensuite la verticalité de l'axe Y - Y', pour compenser la flexion, en réglant la longueur du tirant 9 en vissant ou dévissant la rotule 23. Lorsque la position de réglage est obtenue, on bloque la rotule 23 au moyen de l'écrou 24. On règle ensuite la verticalité de l'axe Y - Y' pour compenser la We start by adjusting the verticality of the axis X - X 'by acting on the screws 11 and 12 so as to move the upper pivot 20 to the right or to the left of FIG. 4. This movement is possible thanks to the play j existing in the lug 16. When the adjustment position is obtained, the part is blocked by tightening the screws 30. The verticality of the axis Y - Y 'is then adjusted, to compensate for the bending, by adjusting the length of the tie rod 9 by screwing or unscrewing the ball joint 23. When the adjustment position is obtained, the ball joint 23 is blocked by means of the nut 24. The verticality of the axis Y - Y ′ is then adjusted to compensate for the
torsion, en agissant sur les vis 28. torsion, by acting on the screws 28.
Lorsque la position de réglage est obtenue, on bloque la rotation du bras 2 autour des axes R - R' et Z - Z' en serrant les vis 29 et 31. Le principal avantage de la potence que l'on vient de décrire est que les moyens de réglage de la verticalité du second axe Y - Y' ne sont pas situés près de cet axe, mais près du premier axe X - XI situé près du ft 1. Il en résulte une diminution de l'inertie de l'équipage mobile particulièrement avantageuse dans le cas des potences de grande portée. When the adjustment position is obtained, the rotation of the arm 2 is blocked around the axes R - R 'and Z - Z' by tightening the screws 29 and 31. The main advantage of the bracket which has just been described is that the means for adjusting the verticality of the second axis Y - Y 'are not located near this axis, but near the first axis X - XI located near the ft 1. This results in a reduction in the inertia of the crew mobile particularly advantageous in the case of long-span jibs.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0208584A FR2841887A1 (en) | 2002-07-08 | 2002-07-08 | Jib crane for moving objects in a horizontal plane has vertical tower to which main arm is connected for rotation about main axis, and second arm connected to main arm for rotation about second axis, adjustable via tie rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0208584A FR2841887A1 (en) | 2002-07-08 | 2002-07-08 | Jib crane for moving objects in a horizontal plane has vertical tower to which main arm is connected for rotation about main axis, and second arm connected to main arm for rotation about second axis, adjustable via tie rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2841887A1 true FR2841887A1 (en) | 2004-01-09 |
Family
ID=29725292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0208584A Withdrawn FR2841887A1 (en) | 2002-07-08 | 2002-07-08 | Jib crane for moving objects in a horizontal plane has vertical tower to which main arm is connected for rotation about main axis, and second arm connected to main arm for rotation about second axis, adjustable via tie rod |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2841887A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7878347B2 (en) * | 2007-12-14 | 2011-02-01 | Gorbel, Inc. | Lifting apparatus with compensation means |
| EP2364586A1 (en) * | 2010-03-10 | 2011-09-14 | Deere & Company | Harvesting machine with a transport device for inserting and removing a crop processing device |
| US20150071790A1 (en) * | 2013-09-11 | 2015-03-12 | Ge Wind Energy Gmbh | Articulated slewing jib crane and wind turbine incorporating same |
| CN106429902A (en) * | 2016-10-14 | 2017-02-22 | 上海德益轻型起重机有限公司 | Cantilever warping degree adjusting mechanism for cantilever crane |
| WO2017055972A1 (en) * | 2015-09-29 | 2017-04-06 | P-Crane Global Limited | Safety device |
| RU226372U1 (en) * | 2024-02-20 | 2024-05-31 | Геннадий Юрьевич Карпеев | Tower crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516428A1 (en) * | 1981-11-16 | 1983-05-20 | Giros Sa H | Pivoting hoist jib for workshop - uses pin joints with axles inclined to vertical and arm pivots back under its own |
| JPH0680390A (en) * | 1992-03-23 | 1994-03-22 | Shokusan Jutaku Sogo Co Ltd | Working equipment for construction material |
| JP2001158591A (en) * | 1999-12-06 | 2001-06-12 | Uichiro Kamiyama | Swing preventing device for slewing arm of jib crane |
-
2002
- 2002-07-08 FR FR0208584A patent/FR2841887A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2516428A1 (en) * | 1981-11-16 | 1983-05-20 | Giros Sa H | Pivoting hoist jib for workshop - uses pin joints with axles inclined to vertical and arm pivots back under its own |
| JPH0680390A (en) * | 1992-03-23 | 1994-03-22 | Shokusan Jutaku Sogo Co Ltd | Working equipment for construction material |
| JP2001158591A (en) * | 1999-12-06 | 2001-06-12 | Uichiro Kamiyama | Swing preventing device for slewing arm of jib crane |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 018, no. 338 (M - 1628) 27 June 1994 (1994-06-27) * |
| PATENT ABSTRACTS OF JAPAN vol. 2000, no. 23 10 February 2001 (2001-02-10) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7878347B2 (en) * | 2007-12-14 | 2011-02-01 | Gorbel, Inc. | Lifting apparatus with compensation means |
| EP2364586A1 (en) * | 2010-03-10 | 2011-09-14 | Deere & Company | Harvesting machine with a transport device for inserting and removing a crop processing device |
| US20150071790A1 (en) * | 2013-09-11 | 2015-03-12 | Ge Wind Energy Gmbh | Articulated slewing jib crane and wind turbine incorporating same |
| US9428369B2 (en) * | 2013-09-11 | 2016-08-30 | General Electric Company | Articulated slewing jib crane and wind turbine incorporating same |
| WO2017055972A1 (en) * | 2015-09-29 | 2017-04-06 | P-Crane Global Limited | Safety device |
| AU2016332986B2 (en) * | 2015-09-29 | 2019-06-13 | Katrina LANGBEIN | Safety device |
| US10596398B2 (en) | 2015-09-29 | 2020-03-24 | P-Crane Global Limited | Safety device |
| CN106429902A (en) * | 2016-10-14 | 2017-02-22 | 上海德益轻型起重机有限公司 | Cantilever warping degree adjusting mechanism for cantilever crane |
| RU226372U1 (en) * | 2024-02-20 | 2024-05-31 | Геннадий Юрьевич Карпеев | Tower crane |
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