FR2469376A1 - Lightweight hoist with vertical mast - has solid base to raise jib and is fitted with guide pulley at base for cable - Google Patents
Lightweight hoist with vertical mast - has solid base to raise jib and is fitted with guide pulley at base for cable Download PDFInfo
- Publication number
- FR2469376A1 FR2469376A1 FR7928225A FR7928225A FR2469376A1 FR 2469376 A1 FR2469376 A1 FR 2469376A1 FR 7928225 A FR7928225 A FR 7928225A FR 7928225 A FR7928225 A FR 7928225A FR 2469376 A1 FR2469376 A1 FR 2469376A1
- Authority
- FR
- France
- Prior art keywords
- crane
- base
- vertical
- riser
- frame
- 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
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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
- B66C23/18—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
- B66C23/20—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 with supporting couples provided by walls of buildings or like structures
- B66C23/202—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 with supporting couples provided by walls of buildings or like structures with supporting couples provided from below, e.g. by floors of buildings
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
Description
L'invention concerne une petite grue montematériaux destinée à fonctionner à partir d'un plan supérieur situé, par exemple, à un étage de bâtiment, pour lever des charges situées à un plan inférieur. Dans ce cas, il arrive souvent qu'une barrière de sécurité ou cloison, un acrotère, un garde-corps d'une terrasse de bsstiment ou un obstacle équivalent soit disposé à l'aplomb de 1 de la paroi du bâtiment, ce qui oblige à surélever la grue. The invention relates to a small material crane intended to operate from an upper plane situated, for example, on a building floor, for lifting loads situated at a lower plane. In this case, it often happens that a security barrier or partition, a parapet, a railing of a building terrace or an equivalent obstacle is placed directly above 1 of the wall of the building, which requires to raise the crane.
L'invention a pour objet une rehausse constituée par une charpente qu'on peut monter et démonter sans outil- lage et qui est destinée à présenter sur sa face horizontale supérieure les points d'appui permettant de recevoir la base de la charpente de la petite grue à laquelle doit etre associée la rehausse pour surélever cette petite grue, chacun de ces points d'appui étant à ltextrémité supérieure d'un tube vertical de la rehausse tandis que des. membrures démontables relient entre eux les points d'appuis supérieurs présentés par la rehausse. The subject of the invention is an extension constituted by a frame which can be assembled and disassembled without tooling and which is intended to present on its upper horizontal face the support points making it possible to receive the base of the frame of the small crane with which the riser must be associated to raise this small crane, each of these support points being at the upper end of a vertical tube of the riser while. dismountable frames connect the upper support points presented by the extension to each other.
Selon une forme d'exécution particulière d'une rehausse destinée à surélever une petite grue comprenant un m & vertical s'encastrant dans une semelle à l'un des sommets d'un triangle de baste et deux membrures inclinées qui reposent par leurs bases aux deux autres sommets du triangle de base et qui convergent vers l'extrémité supérieure du mat, la rehausse présente sur sa face horizontale supérieure les trois points d'appui pour le mAt de grue et;;pour ses deux membrures inclinées. le point d'appui pour le St.de grue est constitué par une semelle en haut dune rehausse verticale de mat et est relié aux deux autres points d'appui par deux barres horizontales supérieurese Chacun de ces deux autres points d'appui est constitué par le haut d'un montant vertical. les deux extrémité s de barres supérieures voisines des montants verticaux sont reliées entre elles par un raidiSseur constituant le -roisième c3té du triangle de base de la grue surélevée. Enfin, les deux autres extrémités de barres supérieures, voisines de la rehausse de mat, sont reliées aux bases des deux montants verticaux par des traverses inclinées.Chacun des six assemblages du raidisseur aux barres supérieures et des extrémités des deux traverses peut se faire par des colliers identiques soudés aux barres supérieures ou aux montants. According to a particular embodiment of an extension intended to raise a small crane comprising a vertical m and fitting into a sole at one of the vertices of a baste triangle and two inclined members which rest by their bases at two other vertices of the base triangle and which converge towards the upper end of the mast, the extension presents on its upper horizontal face the three support points for the crane mast and ;; for its two inclined members. the support point for the St.de crane is constituted by a sole at the top of a vertical mast riser and is connected to the two other support points by two upper horizontal bars Each of these two other support points is constituted by the top of a vertical post. the two ends of upper bars adjacent to the vertical uprights are interconnected by a stiffener constituting the -third side of the base triangle of the raised crane. Finally, the two other ends of upper bars, adjacent to the mast extension, are connected to the bases of the two vertical uprights by inclined crosspieces. Each of the six assemblies of the stiffener to the upper bars and the ends of the two crosspieces can be done by identical collars welded to the upper bars or the uprights.
Pour bien faire comprendre l'invention, on en décrira plus en détails un exemple d'exécution en référence au dessin schématique annexé dans lequel
la figure 1 est une vue d'ensemble schématisée en perspective d'une petite grue surélevée par la rehausse selon l'invention
la figure 2 est une vue d'ensemble schématisée en perspective de la rehausse seule faisant l'objet de l'invention
la figure 3 est une vue partielle en élévation de la rehausse-du mat
la figure 4 est une vue en plan de la semelle supérieure de la rehausse de mât ; et
la figure 5 est une vue partielle en élévation d'un montant vertical de la rehausse.To better understand the invention, an embodiment will be described in more detail with reference to the attached schematic drawing in which
Figure 1 is a schematic perspective view of a small crane raised by the riser according to the invention
Figure 2 is a schematic overview in perspective of the stand alone object of the invention
Figure 3 is a partial elevational view of the mast riser
Figure 4 is a plan view of the upper sole of the mast riser; and
Figure 5 is a partial elevational view of a vertical upright of the riser.
gomme le montre la figure 1, la petite grue à surélever comprend un socle 1 équipé d'un ensemble moteur 2 pour la traction sur un cible de levage 3, d-'une semelle de'mât 4 et d'une poulie de renvoi 5 pour le cible de levage 3 qui s'enroule sur un tambour entraané par l'ensemble moteur. La charpente de grue comprend essentiellement un mAt tubulaire vertical à section carrée 6 et deux membrures inclinées 7-8. En utilisation non surélevée, le mât 6 s'encastre par sa,base dans la semelle 4 et les membrures 7-8 reposent par leurs bases sur le socle I qui peut être stabilisé du-côté opposé au mat par des contrepoids appropriés 9. as shown in FIG. 1, the small crane to be raised comprises a base 1 fitted with a motor assembly 2 for traction on a lifting target 3, a mast base 4 and a deflection pulley 5 for the lifting target 3 which is wound on a drum driven by the engine assembly. The crane structure essentially comprises a vertical tubular mAt with square section 6 and two inclined members 7-8. In non-elevated use, the mast 6 is fitted by its base in the sole 4 and the members 7-8 rest by their bases on the base I which can be stabilized on the side opposite to the mast by suitable counterweights 9.
Dans la position surélevée représentée sur la figure 1, la rehausse selon l'invention (représentée isolément en trait plein sur la figure 2) est interposée entre le socle 1 et la charpente degrue.6-7-8 et elle se compose de membrures tubulaires en acier démontables sans outillage et permettant le pliage de l'ensemble de la rehausse pour son transport. On remarquera que l'interpo- sition de la rehausse ne supprime aucune partie de la grue de base. In the raised position shown in FIG. 1, the riser according to the invention (shown individually in solid lines in FIG. 2) is interposed between the base 1 and the graded frame. 6-7-8 and it is made up of tubular members removable steel without tools and allowing the folding of the entire riser for transport. It will be noted that the positioning of the extension does not remove any part of the base crane.
Cette rehausse comprend trois membrures tubulaires verticales en acier dont une est constituée par un tube carré soudé 11 formant la rehausse du mat et les deux autres par des montants verticaux 12-13 en acier reliés à leurs bases au socle de grue et à leurs extrémités supérieures à deux barres supérieures horizontales 14-15 en tube d'acier qui convergent vers une semelle de rehausse 16 à l'extrémité supérieure de la rehausse de mat. Les extrémités des deux barres supérieures 14-15 qui sont à l'opposé du mat sont reliées entre elles par un tube d'acier raidisseur 17. Enfin, les extrémités des barres supérieures qui sont voisines du mat sont reliées aux bases des deux montants verticaux 12-13 par des traverses inclinées 18-19. This riser comprises three vertical tubular steel members, one of which is constituted by a welded square tube 11 forming the riser of the mast and the other two by vertical uprights 12-13 of steel connected at their bases to the crane base and at their upper ends. with two horizontal upper bars 14-15 in steel tube which converge towards a riser plate 16 at the upper end of the mast riser. The ends of the two upper bars 14-15 which are opposite the mast are connected to each other by a stiffening steel tube 17. Finally, the ends of the upper bars which are adjacent to the mast are connected to the bases of the two vertical uprights 12-13 by inclined cross members 18-19.
La rehausse de mat Il (figure 3) porte à sa base une plaque inférieure horizontale soudée 21 au-dessous de laquelle s'étend un pivot inférieur soudé 22 qui s'engage dans une crapaudine 23 destinée à s'assembler sur la semelle 4 du socle de grue. A son extrémité supérieure, la rehausse de mat Il porte une semelle soudée composée de deux plaques horizontales superposées 24 réunies par un tube soudé 25 destiné à recevoir le pivot inférieur du mat de grue, la plaque supérieure portant des pattes 26 pour l'assemblage de la crapaudine du mat de grue0 A chacune des deux extrémités de la semelle, ses plaques 24 sont percées de deux trous 27 disposés suivant l'axe oblique de la barre supérieure correspondante pour l'assemblage de cette barre par deux broches verticales. The mast riser II (FIG. 3) carries at its base a welded horizontal lower plate 21 below which extends a welded lower pivot 22 which engages in a clamp 23 intended to be assembled on the sole 4 of the crane base. At its upper end, the mast extension It carries a welded sole composed of two superimposed horizontal plates 24 joined by a welded tube 25 intended to receive the lower pivot of the crane mast, the upper plate carrying tabs 26 for the assembly of the crane mast crane 0 At each of the two ends of the sole, its plates 24 are pierced with two holes 27 arranged along the oblique axis of the corresponding upper bar for the assembly of this bar by two vertical pins.
Chacun des deux montants verticaux 12-13 est constitué par un tube d'acier percé à sa base d'un trou d'assemblage 31 et à son extremité supérieure de deux trous superposés 32-33o En outre, au-dessus du trou 31, chaque montant vertical porte un collier 34 en U dont le fond en demi-cercle est soudé sur le pourtour du montant tandis que ses branches s'étendent latéralement en présentant un trou d'assemblage 35 à leurs extrémités et en étant réunies entre elles par une entretoise soudée 36. Each of the two vertical uprights 12-13 is constituted by a steel tube pierced at its base with an assembly hole 31 and at its upper end with two superimposed holes 32-33o In addition, above the hole 31, each vertical upright carries a U-shaped collar 34 whose semicircle bottom is welded to the periphery of the upright while its branches extend laterally by presenting an assembly hole 35 at their ends and being joined together by a welded spacer 36.
lies deux colliers ainsi prévus à la base des deux montants verticaux servent à l'assemblage des deux traverses inclinées 18-19. lies quatre autres colliers soudés aux extrémités des barres supérieures 14-15 pour l'assemblage des extrémités hautes des traverses 18-19 et des extrémités du raidisseur 17 peuvent présenter une structure identique et on les a indiqués au dessin par le mEme chiffre de référence 34. the two necklaces thus provided at the base of the two vertical uprights are used to assemble the two inclined sleepers 18-19. four other collars welded to the ends of the upper bars 14-15 for assembling the high ends of the crosspieces 18-19 and the ends of the stiffener 17 may have an identical structure and they have been indicated in the drawing by the same reference numeral 34 .
li'extrémité de chaque barre supérieure opposée au mSt porte deux joues latérales 41 percées au-dessous de la barre supérieure 14 ou 15 de deux trous d'assemblage 42-43 superposés, pour l'assemblage du montant vertical corres- pondant par ses trous 32-33, et au-dessus de la barre 14 ou 15 drun trou 44 pour l'assemblage d'une membrure inclinée de grue 7 ou 8. the end of each upper bar opposite the mSt carries two lateral cheeks 41 drilled below the upper bar 14 or 15 with two superimposed assembly holes 42-43, for assembling the vertical upright corresponding by its holes 32-33, and above the bar 14 or 15 with a hole 44 for the assembly of an inclined crane member 7 or 8.
On comprendra que l'exemple d'exécution de la renausse décrit ci-dessus n'a aucun caractère limitatif et en particulier que les'assemblages démontables sans outillage pourraient s'obtenir par des moyens différents équivalents. It will be understood that the example of execution of the renausse described above has no limiting character and in particular that the removable assemblies without tools could be obtained by different equivalent means.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928225A FR2469376A1 (en) | 1979-11-15 | 1979-11-15 | Lightweight hoist with vertical mast - has solid base to raise jib and is fitted with guide pulley at base for cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928225A FR2469376A1 (en) | 1979-11-15 | 1979-11-15 | Lightweight hoist with vertical mast - has solid base to raise jib and is fitted with guide pulley at base for cable |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2469376A1 true FR2469376A1 (en) | 1981-05-22 |
FR2469376B3 FR2469376B3 (en) | 1982-08-27 |
Family
ID=9231739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7928225A Granted FR2469376A1 (en) | 1979-11-15 | 1979-11-15 | Lightweight hoist with vertical mast - has solid base to raise jib and is fitted with guide pulley at base for cable |
Country Status (1)
Country | Link |
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FR (1) | FR2469376A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2719300A1 (en) * | 1994-04-28 | 1995-11-03 | Affuso D Anna | Simply assembled and dismantled crane for building works |
CN104192735A (en) * | 2014-09-22 | 2014-12-10 | 山东建筑大学 | Small-size crane |
-
1979
- 1979-11-15 FR FR7928225A patent/FR2469376A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2719300A1 (en) * | 1994-04-28 | 1995-11-03 | Affuso D Anna | Simply assembled and dismantled crane for building works |
CN104192735A (en) * | 2014-09-22 | 2014-12-10 | 山东建筑大学 | Small-size crane |
Also Published As
Publication number | Publication date |
---|---|
FR2469376B3 (en) | 1982-08-27 |
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