DK151712B - HEADWORK WITH TWO SPEED BLOCKS WHICH CAN BE AUTOMATICALLY SEPARATE AND ASSEMBLY. - Google Patents
HEADWORK WITH TWO SPEED BLOCKS WHICH CAN BE AUTOMATICALLY SEPARATE AND ASSEMBLY. Download PDFInfo
- Publication number
- DK151712B DK151712B DK470577A DK470577A DK151712B DK 151712 B DK151712 B DK 151712B DK 470577 A DK470577 A DK 470577A DK 470577 A DK470577 A DK 470577A DK 151712 B DK151712 B DK 151712B
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- DK
- Denmark
- Prior art keywords
- waist block
- waist
- plates
- block
- trolley
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/043—Block and tackle system with variable number of cable parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
iin
DK 151712 BDK 151712 B
Opfindelsen angår et hejseværk til en med en løbevogn forsynet kran, omfattende en øvre og en nedre taljeblok ophængt i et hejsekabel under løbevognen og med i det væsentlige indbyrdes parallelle vertikale plader, som dog ved ud- og indkobling kan spredes fra hinanden, imellem hvilke plader en af taljeblokkene kan optages og med sammenkoblingsorganerne anbragt på den ene taljeblok og på de vertikale plader, der på et bestemt sted, når disse nærmer sig hinanden, gensidigt sammenkoblede går i indgreb og med aktiveringsorganer, der spreder de to vertikale plader i udkoblet tilstand for igen at få sammenkoblingsorganerne udkoblet.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a hoist for a crane equipped with a trolley comprising an upper and a lower waist block suspended in a hoist cable under the trolley and with substantially parallel vertical plates, which, however, can be spread apart between and between the plates. one of the waist blocks can be accommodated and with the coupling means arranged on one waist block and on the vertical plates which, at a particular location, when approaching each other, are mutually interconnected and with actuating means which spread the two vertical plates in the disengaged state for again to disengage the coupling means.
Sådanne hejseværk kendes fra det franske patentskrift nr. 1.451.362. Her beskrives et hejseværk, hvor ud- og indkoblingen af sammenkoblingsaggregatet sker manuelt. Dette kræver et væsentligt tids- og personaleforbrug.Such hoists are known from French Patent Specification No. 1,451,362. Here is described a hoisting station in which the disengagement of the interconnecting unit is done manually. This requires significant time and staff consumption.
Opfindelsen har til formål af angive et hejseværk af den ovennævnte art, hvor ind- og udkoblingen sker automatisk, således at der spares tid og arbejdskraft, og som samtidigt forøger funktionssikkerheden.The invention aims to provide a hoist of the above-mentioned type, in which the switch-on and switch-off takes place automatically, thus saving time and manpower, and at the same time increasing the functional safety.
Dette formål opnås ifølge opfindelsen ved et hejseværk, der er kendetegnet ved, at a) de to vertikale plader er hænglset forbundne med den øverste taljeblok; og at den nederste taljeblok kan optages imellem disse.This object is achieved according to the invention by a hoist characterized in that a) the two vertical plates are hingedly connected to the upper waist block; and that the lower waist pad may be inserted between them.
b) den nederste taljeblok og de to vertikale plader er forsynet med sammenkoblingsorganer, og c) der på kranarmen er anbragt mindst én ansats med en skrå rampe, der befinder sig i bevægelsesbanen for et i det øverste område af løbevognen placeret stempelelement, således at dette ved påløb af den skrå rampe får en vertikal bevægelse, hvorved de to vertikale plader spredes for udkobling ved hjælp af en af stempelelementet aktiveret horisontal plade.(b) the lower waist block and the two vertical plates are provided with interconnecting means; and (c) at least one abutment is provided on the crane arm with an inclined ramp located in the path of movement of a piston member located in the upper region of the trolley. upon application of the inclined ramp, a vertical movement is obtained, whereby the two vertical plates are spread for disengagement by means of a horizontal plate activated by the piston element.
Opfindelsen forklares nærmere i det følgende under henvisning til tegningen, hvor fig. 1 viser en tårnkran udstyret med et hejseværk ifølge opfindelsen med dobbelt taljeblok, idet de to taljeblokke er vist sammenkoblet, fig. 2 - det samme som fig. 1, hvor taljeblokkene er adskilt,The invention will be explained in more detail below with reference to the drawing, in which fig. 1 shows a tower crane equipped with a hoist according to the invention with double waist block, the two waist blocks being shown interconnected; FIG. 2 - the same as FIG. 1, wherein the waist blocks are separated,
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2 fig. 3 de ikke sammenkoblede taljeblokke, set fra siden, fig. 4 et snit efter linien IY-IY i fig. 3 af den øvre taljeblok illustrerende princippet for åbning af sammenhægtningspla-derne, fig. 5 den faste aksel på den nedre taljeblok med hoveder, set i perspektiv, fig. 6 det automatiske hejseværk med dobbelt taljeblok, set i perspektiv, fig. 7, 8, 9 længdesnit illustrerende sammenlåsningsfunktionen, fig. 10 de sammenkoblede og -låste taljeblokke, set fra siden, fig. 11 løbevognens stempel under udløsning af taljeblokkenes sammenkobling og fig. 12 løbevogn-taljeblokenheden i sammenkoblingsstillingen, set fra siden.2 FIG. 3 is a side view of the unpaired waist blocks; FIG. 4 is a sectional view taken along the line IY-IY of FIG. 3 of the upper waist block illustrating the principle of opening the clamping plates; FIG. 5 is a perspective view of the fixed shaft of the lower waist block with heads; FIG. 6 is a perspective view of the double hoist block automatic hoist; FIG. 7, 8, 9 are longitudinal sections illustrating the interlocking function; 10 is a side view of the interconnected and locked waist blocks; FIG. 11 shows the piston of the trolley during release of the coupling of the waist blocks and FIG. 12 side view of the trolley hoist block unit in the coupling position.
I fig. 1 og 2 er vist en tårnkran 1 med en udligger 2. Langs nedre dragere på udliggeren kan forskydes en løbevogn 3 udstyret med et hejseværk omfattende en øvre taljeblok 4 og en nedre taljeblok 3.In FIG. 1 and 2 are shown a tower crane 1 with an outrigger 2. Along the lower supports of the outrigger a trolley 3 can be displaced equipped with a hoist comprising an upper waist block 4 and a lower waist block 3.
De to taljeblokke holdes oppe på i og for sig kendt måde af et hejsekabel 6, som fra en ikke vist tromle går gennem tårrikranen 1, derpå over tovskiver 8 og 9 på henholdsvis løbevognen 3< taljeblokken 4 og taljeblokken 5, før fastgørelses i den forreste spids 10 af udliggeren. I fig. 1 er den øvre taljeblok 4 og den nedre taljeblok 5 sammenkoblet med hinanden, og hejseværket virker som en dobbelt taljeblok. I fig. 2 er taljeblokkene frakoblet, idet den øvre taljeblok 4 er anbragt tæt ved løbevognen 3, og kranen arbejder med enkelt taljeblok.The two waist blocks are held up in a manner known per se by a hoisting cable 6 which, from a drum crane not shown, passes through rope washers 8 and 9 on the running carriage 3 <the waist block 4 and the waist block 5, respectively, before fastening in the front tip 10 of the boom. In FIG. 1, the upper waist block 4 and the lower waist block 5 are interconnected and the hoist works as a double waist block. In FIG. 2, the waist blocks are disengaged, the upper waist block 4 being positioned close to the trolley 3 and the crane operating with a single waist block.
I fig. 3 er hejseværket i funktionsstilling som enkelt taljeblok. Den øvre taljeblok 4 er holdt oppe af hejsekablet og fastholdes tæt mod den nedre flade 11 af løbevognen 3. Løbevognen er opbygget af profiler, der bærer akslerne for tovskiverne 7 på hejsekablet, og midler til løbevognens kørsel langs de nedre dragere 2a på kranudliggeren. Den nedre flade 11 er forsynet med to U-jern 12 anbragt på tværs i forhold til længdeaksen for udliggeren 2. Disse U-jern omfatter styre- og placeringsramper 13 for den øvre taljeblok.In FIG. 3 is the hoist in the functional position as a single waist block. The upper waist block 4 is held up by the hoist cable and is held tightly against the lower surface 11 of the trolley 3. The trolley is made up of profiles supporting the shafts of the rope washers 7 on the hoist cable and means for driving the trolley along the lower supports 2a of the crane boom. The lower surface 11 is provided with two U-irons 12 arranged transversely to the longitudinal axis of the outrigger 2. These U-irons comprise guide and positioning ramps 13 for the upper waist block.
Den øvre taljeblok 4 omfatter organer 14 til sammenhægtning med den nedre taljeblok 5· Hvert organ 14 omfatter en lodret plade 15, i hvilken der er udført en åbning 16. Den nedre del af hver plade er 3The upper waist block 4 comprises means 14 for attachment to the lower waist block 5. Each member 14 comprises a vertical plate 15 in which an opening 16 is provided. The lower part of each plate is 3
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bøjet ved 17 på en sådan måde^ at der dannes en påløbsrampe 18. Endvidere er hver af disse sammenhægtningsplader bevægelige ved deres øvre kant omkring en akse 19 båret af et hus 20 for taljeblokken 4, fig. 3 og 4.bent at 17 in such a manner as to form an inlet ramp 18. Furthermore, each of these bonding plates is movable at their upper edge about an axis 19 supported by a housing 20 for the waist block 4; 3 and 4.
På de to andre sider er huset 20 forsynet med faste plader 21, som ligeledes er bøjet bort fra hinanden ved deres nedre del. Disse to plader 21 er desuden profileret og udskåret for at danne en ramme 22, i hvilken den nedre taljeblok 5 indføres under sammenhægtning, fig. 3, 4 og 6.On the other two sides, the housing 20 is provided with fixed plates 21 which are also bent away from each other at their lower part. These two plates 21 are further profiled and cut to form a frame 22 into which the lower waist block 5 is inserted during attachment. 3, 4 and 6.
Den nedre taljeblok 5 bærer en hejsekrog, akslerne for de to tovskiver 9 for kablet 6 og en tværgående aksel 23, hvis ender dannes af hovederne 24. Pamper 25 udformet ved affasning af hvert hoved er beregnet til at gå imod og sprede de bevægelige plader 15 på den øvre taljeblok, fig. 4 og 5. Akselen 23 bærer i sine ender et profileret udragende element 26 beregnet til at gå ind i pladen 15's tilsvarende åbning 16.The lower waist block 5 carries a hoist hook, the shafts of the two rope washers 9 of the cable 6, and a transverse shaft 23, the ends of which are formed by the heads 24. Pumps 25 formed at the bevel of each head are intended to counteract and disperse the moving plates 15 on the upper waist block, fig. 4 and 5. The shaft 23 carries at its ends a profiled protruding element 26 intended to enter the corresponding opening 16 of the plate 15.
Den nedre taljeblok 5's hus 27 bærer ligeledes knaster 28, som samvirker med styreramperne på de faste plader 21 på taljeblokken 4. Denne styring er vist i fig. 6 og 10.The housing 27 of the lower waist block 5 also carries lugs 28 which cooperate with the guide ramps on the fixed plates 21 on the waist block 4. This control is shown in FIG. 6 and 10.
Ved deres øvre kant er sammenhægtningspladerne 15 forbundet med hinanden med en aksel 29, som kan forskydes i langstrakte huller 30,31 og 32, idet i det mindste et af disse huller er lodret orienteret og udført i den øvre del af huset for taljeblokken 4.At their upper edge, the clamping plates 15 are connected to one another by a shaft 29 which can be displaced in elongated holes 30,31 and 32, at least one of these holes being vertically oriented and formed in the upper part of the housing for the waist block 4.
I fig. 9 mere detaljeret vist tilbehøret anbragt, på løbevognen 3· En lodret stempelstang 33 er i sin øvre ende forsynet med et middel, der er i stand til at forskyde sig på en skrå styrerampe 34 på en ansats, som er fastgjort under den nedre drager på udliggeren.In FIG. 9 is shown in more detail on the accessory, on the trolley 3 · A vertical piston rod 33 is provided at its upper end with a means capable of displacing on an inclined guide ramp 34 on an attachment fixed below the lower carrier of jib.
En trykfjeder 36 holder stempelstangen i sin øvre stilling. Når løbevognen føres frem mod rampen 34, bliver stempelstangen skubbet lodret nedad. Under medvirken af en vandret plade 37 udøves der samtidig en kraft mod de øverste dele 38 af de to sammenhægtningsplader 15, fig. 9, 11 og 12.A compression spring 36 holds the piston rod in its upper position. As the trolley is advanced toward the ramp 34, the piston rod is pushed vertically downward. At the same time, with the aid of a horizontal plate 37, a force is exerted on the upper parts 38 of the two jointing plates 15. 9, 11 and 12.
Hejseværkets automatiske funktion for at gå fra arbejdsstillingen med to hejsetove til arbejdsstillingen med fire hejsetove er følgende:The automatic function of the hoist works to go from the working position with two hoisting ropes to the working position with four hoisting ropes:
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4 1) Denne ændring, som kan udføres i hele udliggerens længde, består i samenhægtning af den nedre taljeblok 5 til den øvre taljeblok 4, der er anbragt under løbevognen. Dette sker ved en hejsebevægelse efter pilen 40 i fig. 4. Den nedre taljeblok 5 føres ind i rammen 22 dannet af udskæringerne og ramperne midt på de faste plader 21 på den øvre taljeblok 4. Under dette samvirker pladerne 21 med knasterne 28 på den nedre taljeblok for at sikre styringen i en retning parallelt med kranudliggerens længdeakse. Ved fortsættelse af denne bevægelse går ramperne på hovederne af akselen 23 mod de indvendige flader af den nedre del af påløbsramperne 18. Disse plader, der normalt er lodrette og nær ved hinanden under virkning af deres egen vægt, vipper da samtidigt fra hinanden i den ved pilene 41 og 42 i fig. 7 og 8 viste retning.4 1) This change, which can be carried out throughout the length of the boom, consists in attaching the lower waist block 5 to the upper waist block 4 which is placed under the trolley. This is effected by a hoisting movement following the arrow 40 in FIG. 4. The lower waist block 5 is inserted into the frame 22 formed by the cutouts and ramps in the middle of the fixed plates 21 of the upper waist block 4. Below this, the plates 21 interact with the knobs 28 of the lower waist block to ensure control in a direction parallel to that of the crane excavator. longitudinal axis. Continuing this movement, the ramps on the heads of the shaft 23 move toward the inner surfaces of the lower portion of the ramp ramps 18. These plates, which are usually vertical and close to each other under their own weight, then simultaneously tilt each other in the arrows 41 and 42 in FIG. 7 and 8.
2) Uår den i fig. 8 viste stilling er opnået, hvor elementerne 26 praktisk taget er ud for åbningerne 16, standser en kontakt på et endestop almindeligvis taljeblokkens bevægelse, for at denne ikke skal støde op mod kranudliggeren.2) In the case shown in FIG. 8, where the elements 26 are practically adjacent to the openings 16, a contact on an end stop generally stops the movement of the waist block so that it does not abut against the crane boom.
Den nedre taljeblok kan således hæves til dennes maksimale øvre stilling. Elementerne 26 er således ført nøjagtigt ud for åbningerne 16 i pladerne 15, som under indvirkning af deres egen vægt falder tilbage i den lodrette stilling efter pilene 43 og 44 i fig. 9.The lower waist block can thus be raised to its maximum upper position. The elements 26 are thus projected precisely to the openings 16 of the plates 15 which, under the influence of their own weight, fall back into the vertical position following the arrows 43 and 44 in FIG. 9th
3) Den nedre taljeblok 5 sænkes derefter en lille smule, og aksel 23 kommer til at hvile mod underkanten af åbningerne 16, fig. 6, 9 og 10. De nedre ender af elementerne 26 låser samenhægtningspladerne 15. Denne samenlåsning sker udelukkende ved styring af hejsekablet 6 og sikrer samenkoblingen af de to taljeblokke for arbejde som dobbelt taljeblok, således som det er vist i fig. 1.3) The lower waist block 5 is then lowered a little, and shaft 23 will rest against the lower edge of the openings 16, fig. 6, 9 and 10. The lower ends of the members 26 lock the sealing plates 15. This interlocking is performed solely by control of the hoist cable 6 and ensures the connection of the two waist blocks for work as a double waist block, as shown in FIG. First
Eor at ændre den dobbelte taljeblok til en enkelt taljeblok udnyttes styreorganerne på løbevognen. Operationerne er følgende: a) Ved træk i det ikke viste kørekabel føres enheden med de to samehkoblede taljeblokke mod den skrå rampe 34-, der er fastgjort under den nedre drager på udliggeren, fig. 11, samtidig med at de to taljeblokke holdes i deres øverste stilling.To change the double waist block to a single waist block, the controls on the trolley are utilized. The operations are as follows: (a) When pulling in the driving cable (not shown), the unit is guided with the two jointed link blocks towards the inclined ramp 34- which is secured under the lower drag on the boom. 11, while keeping the two waist blocks in their top position.
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b) Ligesom ved ophejsning er kraner almindeligvis udstyret med endestop for kørsel. I hejseværket ifølge opfindelsen anvendes et system, der medfører kortslutning af endestoppet ligesom kortslutningen af endestoppet ved hejsning, hvilket tillader udnyttelse af rampen 3^ på ansatsen 35.b) As with lifting, cranes are usually equipped with end stops for driving. In the hoist according to the invention a system is used which causes the short stop of the end stop as well as the short circuit of the end stop by hoisting, which allows the utilization of the ramp 3 ^ on the shoulder 35.
c) Den øvre ende af stempelstangen 33 går mod rampen 34. Den øvre taljeblok 4 er anbragt mod den nedre flade af løbevognen. Den nedre taljeblok 5 hæves en smule ved træk i hejsekablet. Taljeblokken 5 kommer ligeledes i anlæg mod den nedre flade af den øvre taljeblok 4. Denne stilling er vist ved 45 i fig. 12. I denne stilling er koblingsakselen 23 i anlæg mod den øvre kant af åbningen 16, og elementerne 26 låser ikke mere pladerne 15.c) The upper end of the piston rod 33 goes against the ramp 34. The upper waist block 4 is positioned against the lower surface of the trolley. The lower waist block 5 is slightly raised in tension in the hoist cable. The waist block 5 also abuts against the lower surface of the upper waist block 4. This position is shown at 45 in FIG. 12. In this position, the coupling shaft 23 abuts the upper edge of the opening 16, and the elements 26 no longer lock the plates 15.
d) Ved træk i løbevognens kørekabel føres denne mod endestoppet på ansatsen 35. Den øvre ende af stempelstangen 33 trykkes ned efter pilen 46 imod trykfjederen 36. Den vandrette plade 37 foretager en nedadgående bevægelse og ligger an mod de øvre ender 38 af de bevægelige sammenhægtningsplader. Dette tryk nedad medfører samtidig udsvingning af de to plader 15 efter pilene 47 og 48, idet denne samtidighed opnås ved spillerummet i hullerne 30 til 32, i hvilke den pladerne forbindende aksel 29 glider, fig, 11. Den nedre taljeblok er derefter frigivet. Det er tilstrækkeligt at slække hejsekablet for at fremkalde dens nedhejsning og tillade arbejde som enkelt taljeblok, idet pladerne atter indtager deres lodrette stilling,så snart stempelstangen er fri for virkningen fra rampen 34. Hejseværket er derefter atter i den i fig. 2 viste stilling.d) When pulling in the trolley's cable, it is guided towards the end stop on the shoulder 35. The upper end of the piston rod 33 is pressed down after the arrow 46 against the compression spring 36. The horizontal plate 37 makes a downward movement and abuts the upper ends 38 of the movable clamping plates. . This downward pressure causes simultaneous oscillation of the two plates 15 by the arrows 47 and 48, this simultaneity being achieved by the clearance in the holes 30 to 32, in which the plates connecting shaft 29 slide, Fig. 11. The lower waist block is then released. It is sufficient to slacken the hoist cable to induce its hoisting and allow work as a single waist block, the plates retaining their vertical position as soon as the piston rod is free from the impact of ramp 34. The hoist is then again in the position shown in FIG. 2.
Det ses, at ændringen fra to til fire hejsetove kan ske i hele længden og et hvilket som helst punkt af kranudiiggereii, hvorimod ændringen fra dobbelt taljeblok til enkelt taljeblok forudsætter at løbevognen er ført til en skrå rampe som 34-, åer er fastgjort til en nedre drager på udliggeren.It can be seen that the change from two to four hoist ropes can take place throughout the length and any point of the crane rig, whereas the change from double waist block to single waist block assumes that the trolley is led to a sloping ramp as 34- rows are attached to a lower kites on the outrigger.
En sådan rampe er almindeligvis anbragt i nærheden af udliggerens fod, men det er også muligt at anbringe flere i kranudliggerens længde. Hdløsningen kan kun ske, hvis køreendestoppet og hejseen-destoppet samtidigt er påvirket. Det er tilstrækkeligt at fastholde endestoppet for hejsning for at komme forbi de mellemliggende ramper uden at påvirke taljeblokken under løbevognens kørsel.Such a ramp is usually placed near the foot of the boom, but it is also possible to place several in the length of the crane boom. The high resolution can only happen if the drive end stop and the hoist end stop are simultaneously affected. It is sufficient to hold the end stop for hoisting to get past the intermediate ramps without affecting the waist pad during the trolley ride.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7632472 | 1976-10-22 | ||
| FR7632472A FR2368431A1 (en) | 1976-10-22 | 1976-10-22 | Hoist mechanism with two blocks - has upper and lower blocks and grab hooking together and releasing automatically |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK470577A DK470577A (en) | 1978-04-23 |
| DK151712B true DK151712B (en) | 1987-12-28 |
| DK151712C DK151712C (en) | 1988-06-06 |
Family
ID=9179288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK470577A DK151712C (en) | 1976-10-22 | 1977-10-21 | HEADWORK WITH TWO SPEED BLOCKS WHICH CAN BE AUTOMATICALLY SEPARATE AND ASSEMBLY. |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2747069A1 (en) |
| DK (1) | DK151712C (en) |
| FR (1) | FR2368431A1 (en) |
| IT (1) | IT1087122B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3149690A1 (en) * | 1981-12-15 | 1983-06-23 | Liebherr-Werk Biberach Gmbh, 7950 Biberach | Device for re-reeving the lifting repe in cranes |
| DE3515156A1 (en) * | 1985-04-26 | 1986-10-30 | M.A.N.-Wolffkran GmbH, 7100 Heilbronn | DEVICE FOR RETRIEVING THE LIFTING ROPE IN A CRANE WITH A TROLLEY TRAVELABLE ON A HIGH-ALIGNED TRACK |
| DE3543214A1 (en) * | 1985-06-13 | 1986-12-18 | Liebherr-Werk Bischofshofen GmbH, Bischofshofen | Device for re-reeving the crane-hook bottom block connected by a rope to the crab of a crane |
| DE202009005526U1 (en) | 2009-04-11 | 2010-05-20 | Armbruster, Hermann | Device for picking up, transporting and tipping grape containers |
| ITMI20101302A1 (en) * | 2010-07-15 | 2012-01-16 | F B F Lli Butti S R L | DEVICE FOR AUTOMATICALLY CHANGING THE CUTTING SYSTEM IN LUMINAIRE APPLIANCES, PARTICULARLY FOR TOWER CRANES. |
| CN105731286A (en) * | 2016-03-24 | 2016-07-06 | 安徽康成工业产品设计有限公司 | Multidirectional cargo carrying device |
| FR3061163B1 (en) * | 2016-12-23 | 2019-05-24 | Manitowoc Crane Group France | LIFTING CRANE COMPRISING A DOUBLE MOLDING LIFTING DEVICE |
| FR3061164B1 (en) * | 2016-12-23 | 2019-05-24 | Manitowoc Crane Group France | LIFTING CRANE COMPRISING A DOUBLE MOLDING LIFTING DEVICE |
| NL2024563B1 (en) * | 2019-12-23 | 2021-09-02 | Itrec Bv | Crane, vessel comprising such a crane, and a method for up-ending a longitudinal structure |
| FR3114090B1 (en) | 2020-09-16 | 2022-08-19 | Manitowoc Crane Group France | Double reeving hoist with latch locking mechanism |
| FR3114089B1 (en) | 2020-09-17 | 2022-08-19 | Manitowoc Crane Group France | Double reeving hoist with rotary locking mechanism |
| FR3135259B1 (en) | 2022-05-04 | 2024-05-03 | Manitowoc Crane Group France | Double reeving lifting device with improved latch locking mechanism |
| FR3139561A1 (en) | 2022-09-14 | 2024-03-15 | Manitowoc Crane Group France | Lifting machine with automated reeving change |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1451362A (en) * | 1965-06-22 | 1966-01-07 | Richier Sa | Improvement in hauling devices used for lifting loads |
| DE2114418A1 (en) * | 1971-03-25 | 1972-10-05 | Wetzel Kg | Device for converting cranes to multi-rope operation |
| DE2116544A1 (en) * | 1971-04-05 | 1972-11-23 | F.B. Kroell A/S, Roedovre (Dänemark) | Reeving device for winches with a multiple-strand suspended bottom block |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1557844A (en) * | 1967-12-27 | 1969-02-21 |
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1976
- 1976-10-22 FR FR7632472A patent/FR2368431A1/en active Granted
-
1977
- 1977-10-20 DE DE19772747069 patent/DE2747069A1/en active Granted
- 1977-10-21 DK DK470577A patent/DK151712C/en not_active IP Right Cessation
- 1977-10-24 IT IT2890577A patent/IT1087122B/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1451362A (en) * | 1965-06-22 | 1966-01-07 | Richier Sa | Improvement in hauling devices used for lifting loads |
| DE2114418A1 (en) * | 1971-03-25 | 1972-10-05 | Wetzel Kg | Device for converting cranes to multi-rope operation |
| DE2116544A1 (en) * | 1971-04-05 | 1972-11-23 | F.B. Kroell A/S, Roedovre (Dänemark) | Reeving device for winches with a multiple-strand suspended bottom block |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2747069A1 (en) | 1978-04-27 |
| FR2368431B1 (en) | 1980-03-14 |
| DK151712C (en) | 1988-06-06 |
| DK470577A (en) | 1978-04-23 |
| FR2368431A1 (en) | 1978-05-19 |
| DE2747069C2 (en) | 1987-01-22 |
| IT1087122B (en) | 1985-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |