EP2265536A1 - Moyen d accrochage et système de levage de charge destiné à être utilisé avec un tel moyen d accrochage - Google Patents

Moyen d accrochage et système de levage de charge destiné à être utilisé avec un tel moyen d accrochage

Info

Publication number
EP2265536A1
EP2265536A1 EP09735497A EP09735497A EP2265536A1 EP 2265536 A1 EP2265536 A1 EP 2265536A1 EP 09735497 A EP09735497 A EP 09735497A EP 09735497 A EP09735497 A EP 09735497A EP 2265536 A1 EP2265536 A1 EP 2265536A1
Authority
EP
European Patent Office
Prior art keywords
load
stop means
ball
lifting system
load lifting
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
Application number
EP09735497A
Other languages
German (de)
English (en)
Other versions
EP2265536B1 (fr
Inventor
Helmut Rube
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Stahl GmbH
Original Assignee
Carl Stahl GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Stahl GmbH filed Critical Carl Stahl GmbH
Publication of EP2265536A1 publication Critical patent/EP2265536A1/fr
Application granted granted Critical
Publication of EP2265536B1 publication Critical patent/EP2265536B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

Definitions

  • the invention relates to a stop means with an anchor member which is connectable or connected to a moving load, and with a system part with at least one transfer surface for the attack of a lifting means.
  • DE 197 31 41 U1 discloses, for example, a stop means of this type, which is embedded in a concrete precast element to be transported.
  • An advantage of such a stop means is that the handling is simple and convenient, because the entanglement for attaching the lifting means is formed by embracing the transmission surface located on the stop means by a concave support surface of the lifting means. Measures such as the operation of screws or the like omitted.
  • entanglement and Enthakung can accomplish in a similar convenient manner, as is the case when attaching or unhooking the hooks of cranes or similar hoists on An von Kunststoff Kunststoff the loads to be manipulated.
  • the known slings of this type are designed for specific applications, as is the case with the handling of precast concrete where the line of action of the tensile force between the stop means and lifting means a predetermined tensile direction corresponds, in which for the attack of the support surface of the lifting means on the transfer surface the attachment means results in a specific point of attack, so that there is no danger of Enthakung given the concavity.
  • the invention has the task to improve a sling to the effect that while maintaining the advantages of ease of use a reliable use even for more universal purposes is possible, especially in different from case to case directions of pull on the stop means attacking pull forces.
  • a significant feature of the invention is that the transfer surface is formed at least partially convexly curved or formed by area areas, which are circumscribed on the investment part of a convexly curved envelope.
  • the load transfer therefore takes place via a ball joint-like connection, which is substantially free of lateral forces in the case of different directions of pull.
  • the overlapping of the transfer surface on the stop means by a carrier surface defining concavity on the lifting means thus provides security against Entaken, regardless of where the line of action of the tensile force intersects the curved transfer surface on the stop means.
  • the plant part may be formed in the manner of a spheroid.
  • kind of spheroid in the present context is to be understood not only a strictly spherical body, such as a smooth sphere or hemisphere, but any spherical-like domed body, possibly with oval in cross-section, or in the form of a ball-like Body, the on its surface is contoured, for example, ribbed or grooved, wherein the summit areas of a convexly curved envelope circumscribed area areas form.
  • the transfer surface may also be a spherical surface forming part of a spherical body, which may cooperate with a type of ball hook on the lifting means on which the carrier surface is formed by parts of a spherical cap.
  • the spherical surface is formed on a part of the ball forming the ball part, which is connectable via the anchor part with the load.
  • the anchor part can be formed directly on the load in components that are provided from the outset for handling with a stop means according to the invention, the anchor part.
  • the arrangement can also be made such that the surface areas forming the transfer surface, circumscribed by a convexly curved envelope, are offset from one another by surface areas which are taken back in the plant part.
  • the attack of the support surface of the lifting device thus takes place on areas of the plant part, between which are recessed areas. These areas can form a receiving space for particles such as sand, soot, chips or the like when using the sling under unfavorable environmental conditions, especially when there is a high risk of contamination.
  • the arrangement may be such that spaced-apart areas of area on the contact part are formed by annular ribs, which, relative to the axis of the anchor part, in radial planes at a distance from each other, and / or formed by ring sections forming ribs, which from the anchor part proceeding diverging starting from each other and separated by wells.
  • a pattern of ribs and depressions may also be provided, for example by ribs extending in radial planes being interrupted by depressions which, starting from the shaft part, run divergently with respect to one another and intersect the ribs at a right angle.
  • an anchor part is preferably provided on an outer surface of the load connected to it protruding shaft part, to which the end connected integrally with him ball part.
  • an anchor part is preferably provided on an outer surface of the load connected to it protruding shaft part, to which the end connected integrally with him ball part.
  • the shank part terminates in a threaded pin which can be screwed to the load.
  • the sling is characterized particularly easy and safe attachable to loads to be transported and easily removable after completion of the transport of the load, so that it is optionally available for reuse.
  • the shank part at the end of the threaded pin adjacent to the ball part an extension in the form of a collar whose diameter is greater than that of the threaded pin and forms a support surface for the system on the outside of the screwed with the threaded pin load.
  • the shaft part is effectively supported against bending moments, which occur when load forces attack with tensile directions, to the axis of the shaft part in the Angle are inclined.
  • the invention is suitable for the transmission of load forces, which may even be directed 90 degrees to the axis of the shaft portion of the sling.
  • the diameter of the collar is about twice the diameter of the threaded pin
  • the diameter of the ball body of the ball member preferably also has about twice the diameter of the diameter of the threaded pin.
  • the sling means according to the invention can also be used without being directly connected to a load.
  • the arrangement may be such that the shaft portion of the stop means is connected to a load hook, as it is usually attached to crane ropes or chains and is used for attaching Lastgesch errone or the like.
  • the invention is also a load lifting system for use with a stop means according to the invention, wherein the load lifting system has the features of claim 12 in its entirety. Accordingly, the system has as a special feature a carrier housing provided on the lifting means, in which the carrier surface is formed on the inside by concavely curved surface parts.
  • the arrangement can be made in an advantageous manner so that the concavely curved surface parts for the interaction with a spherical part of the contact part have parts of a spherical cap.
  • the carrier housing may have a receiving space which surrounds the ball part and the adjacent shaft part in the state of entanglement with the stop means.
  • a housing may be designed as a ball carrier housing bell-like with the bottom part opposite upper part at which an attack point for the load lifting means generated by the lifting means, for example in the form of a chain or a rope is located, the line of action of the tensile force extending from bottom to top part Main axis of the ball carrier housing defined.
  • the arrangement may be made so that recesses for movements of the stop means inside the ball carrier housing and out of this prescribe a direction perpendicular to the main axis of movement.
  • a ball hook is formed, in which the entanglement comes about by a relative to the main axis of the ball carrier housing transverse movement relative to the stop means.
  • the recesses provided in the ball carrier housing can be formed by a slot in the bottom part with a width permitting the passage of the shaft portion of the stop means and a breakthrough in the side wall adjoining the slot, which allows the passage of the ball portion of the stop means.
  • a flap pivotable about an axis perpendicular to the main axis and to the longitudinal direction of the slot can be provided on the upper part of the ball carrier housing, which can be moved into a partially blocking position for securing the hooking state or into a position releasing the aperture , wherein preferably the flap is biased in the blocking position.
  • the ball carrier housing is not formed as a uniform bell body, but the arrangement is such that the upper part of the ball carrier housing forms a pivot bearing connected to the tensile force generated by the lifting means for two shell-shaped housing halves, which are pivotable between an unfolded Enthakungsposition and a folded-together Verhakungsposition in which the receiving space is formed, the when the state of entanglement surrounds the ball portion of the stop means, leaving only the shank portion adjacent to the ball portion.
  • ball-calotte parts are designed to cooperate with the transfer surface of the stop means located in the receiving space to form the carrier surface on the insides of the shell bodies.
  • FIG. 1 shows a perspective oblique view of an embodiment of the stop means according to the invention using a load lifting system slightly reduced compared to a practical embodiment, wherein the state of the entanglement is shown;
  • FIG. 2 is a side elevation of a slightly enlarged side view of a practical embodiment of only the stop means;
  • FIG. 3 shows a representation of the hooking state shown in FIG. 1 in a perspective oblique view and cut longitudinally in the middle, the cutting plane running in the longitudinal direction of a slot formed in the bottom part of a ball carrier housing;
  • FIG. 4 is a view similar to Figure 1 of VerhakungsSches, wherein the stop means on a side wall of a load is accessible.
  • 5 shows a perspective oblique view of a hanger formed using the exemplary embodiment of the stop means;
  • FIG. 6 shows a partial representation, which is drawn on a larger scale compared to FIG. 5, of only the district designated VI in FIG. 5;
  • 7 shows a side view, approximately in full size, of the stop means according to a further embodiment of the invention, attached to a load hook provided for cooperation with a load;
  • FIG. 8 is a view, similar to FIG. 1, of the hooking condition, wherein a modified example of a ball carrier housing is shown in a perspective oblique view;
  • FIG. 1 shows a perspective oblique view of a hanger formed using the exemplary embodiment of the stop means
  • FIG. 6 shows a partial representation, which is drawn on a larger scale compared to FIG. 5, of only the district designated VI in FIG. 5
  • FIG. 9 shows a half-side longitudinal section of the hooking state shown in FIG. 8;
  • FIG. 10 shows a greatly enlarged section of the area designated X in FIG. 9;
  • FIG. 10 shows a greatly enlarged section of the area designated X in FIG. 9;
  • FIG. 11 shows a perspective oblique view of only a modified embodiment of a ball carrier housing
  • FIG. 12 shows a half-side longitudinal section, similar to FIG. 9, of the hooking state of the ball carrier housing of FIG. 11 and of the hook
  • Fig. 13 is a greatly enlarged partial view of only the designated in Figure 11 with XIII district.
  • 14 is a side view of a further modified embodiment of a ball carrier housing in a partially opened state before the final entanglement with the stop means according to the invention; 15 shows the state of complete entanglement of the ball carrier housing of FIG. 14 with the stop means, and FIGS. 16 to 18 perspective oblique views of three further exemplary embodiments of the stop means.
  • a load lifting means designated as a whole by 1 in FIG. 1 has a metallic ball carrier housing 3, which is closed at the upper end by an upper part 5, which is integrally formed with the rest of the housing as a circular cover plate which projects upwards at a distance from one another has thigh-like projections 7, between which an attack point is formed for serving as a traction means steel chain 9.
  • a bell-shaped side wall 11 extending to a bottom part 13 of the ball carrier housing 3 extends.
  • a receiving space 15 is formed between the upper part 5 and the bottom part 13, which extends approximately circularly cylindrical from the upper part 5 against the bottom part 13, wherein the circular cylindrical shape, however, ends in front of the inside of the bottom part 13.
  • Fig. 2 shows a separate representation of the whole designated 17 stop means according to the embodiment of the invention to be described here.
  • the stop means 17 is a one-piece, rotationally symmetrical metal part and has three main parts, namely a circular shaft part 19 with an adjoining in the drawing end ball part 21 and at the other, the lower end subsequent threaded pin 23rd
  • a circular annular flange forming collar 25 At the transition of the shaft portion 19 in the threaded pin 23 is a circular annular flange forming collar 25, the diameter of which in the example shown is greater than the diameter of the ball member 21 and about twice as large as the diameter of the threaded pin 23.
  • the ball part 21 forms, with respect to a center of curvature 31 located on the vertical axis 29, a part of a spherical body 33 extending from the end of the shank part 19 to a ring area 35 where the curvature in relation to the radius radius, which in the example shown is smaller by a factor of 2.5 than the radius of the spherical body 33.
  • this curved part 37 At the end of this curved part 37 is followed by a flat flattening 39 as the end surface of the ball member 21 at.
  • FIGS. 1 and 3 shows the state of entanglement of the lifting means 1 with the stop means 17, which is screwed by means of its threaded pin 23 with a load 41 in such a way that the shaft part 19 protrudes on the flat outer side 43 of the load 41.
  • the annular surface 27 on the collar 25, which forms an extension of the shank 19, abuts on the outer side 43 of the load 41 as a supporting surface.
  • the collar 25 in the example shown on two diametrically opposite flats 45, which allow the tightening of the screw by means of a rotary tool, such as open-end wrench.
  • a rotary tool such as open-end wrench.
  • an internal or external hexagon could be provided on the head-side flattening 39.
  • FIGS. 1 and 3 The design of the inside of the bottom part 13 of the ball carrier housing 3 can be seen from FIGS. 1 and 3.
  • a central, continuous straight slot 47 located in the bottom part 13 is a central, continuous straight slot 47, the width of which is slightly larger than the diameter of the shaft part 19 of the stop means 17.
  • the slot 47 thus forms an insertion path, along which the stop means 17 can be inserted into the interior of the receiving space 15.
  • an opening 51 formed in the side wall 11 of the ball carrier housing 3, adjoins the end 49 of the slot 47, forming a kind of round window which extends into the vicinity of the upper part 5.
  • the window size of this aperture 51 is selected so that when the stem 19 of the stop means 17 is inserted along the slot 47, the ball member 21 may enter the receiving space 15 through the aperture 51.
  • the inside of the bottom part 13 is shaped such that concave surface parts are present which are suitable for the installation of the convex surface.
  • transmission surface 34 of the stop means 17 form a support surface for the transmission of tensile force.
  • parts of a spherical cap 53 adjoin these on each side of the slot 47 and are adapted to the transfer surface 34 on the spherical body 21 of the stop means 17 in such a way that under load a coupling connection in the manner of a ball joint arrangement between the ball part 21 the stop means 17 and the ball carrier housing 3 is formed.
  • a kind of hook safety is provided in the present example, which provides a blocking flap 55 which is pivotally mounted about an axis 57 which extends within a recess 59 extends in the upper part 5 perpendicular to the main axis of the ball carrier housing 3 and perpendicular to the longitudinal direction of the slot 47 in the bottom part 13.
  • the so-mounted flap 55 is in a breakthrough 51 partially occlusive locking position, as shown in FIGS. 1 and 3, pivotable.
  • FIGS. 1, 4 and 6 show a flap projecting outwardly from a slot opening in the upper part 5 with the flap 55 associated actuating lever 61, by means of which the flap 55 is pivotable against the spring force, so that the Enthakung can be performed.
  • FIG. 6 also shows a particularity with respect to the representation of FIGS. 1 and 4, namely that an actuating lever 61 is located on both sides of the leg 7 located on the upper part 5 of the ball carrier housing 3, so that the actuation of the flap 55 of both Pages ago is particularly convenient to carry out.
  • Fig. 7 shows a variant in which the stop means 17 does not interact directly with a respective load, but with its shaft part 19 is attached to a load hook 63 of conventional construction.
  • the load lifting system according to the invention can thus also be used in cases in which a relevant load is already provided with means such as loops, loops or the like, which are intended for transport with normal crane hooks.
  • the transfer surface 53 is formed in each case by parts of the spherical cap 53 itself, so that a large-scale contact with the transfer surface 34 on the spherical body 21 of the stop means 17 under load, this is different 8 to 10 shown example of the ball carrier housing 3 from the example described above in that on the Kugelkalotten really 53, a radially inwardly projecting wave profile 65 is formed, the wave peaks 67, see Fig. 10, forming parts of circular rings, which form a hollow sphere rewrite, wherein annular surface parts form the support surface which is adapted to the transfer surface on the stop means 17 forming spherical surface 34.
  • FIGS. 1 to 13 illustrate a further exemplary embodiment of the ball carrier housing 3, which substantially corresponds to the example of FIGS. 8 to 10, but instead of the wave profile 65, bumps in the form of partial balls 69 project from the sides of the dormice, which, as can be seen in particular from FIG. 13, distributed in an irregular pattern in the surface of the dome parts 53 are distributed on the bottom part 13 and rewrite with their heads a spherical surface forming the support surface and the condition of Verhak ⁇ ng contact points on the spherical surface 34 of the ball part 21 of the stop means 17 form.
  • the ball carrier housing 3 is designed in two parts and has two mirror image lent same, shell-shaped housing halves 71 and 73. These are pivotally mounted on a pivot bearing 75, which is arranged on the upper housing part 5 in the vicinity of the attachment point for a chain 9 forming lugs 7 and defines a pivot axis which is perpendicular to the main axis of the ball carrier housing 3.
  • the comparison of FIGS. 14 and 15 shows that the housing halves 71 and 73 are pivotable between an unfolded dehooking position and a folded-in position. The state of the hooking position is shown in Fig.
  • Fig. 14 shows the state of the partial interlocking, in which a housing half 71 is already pivoted in the Verhakungsposition, while the other housing half 73 is still in the position corresponding to the dehooking pivot position.
  • the example of Fig. 14 allows and 15, that an immediate overlap of the ball member 21 can take place from above, without a transverse movement is required.
  • the inner side of the housing halves 71 and 73 which adjoins the base parts 13 and forms the carrier surface for cooperation with the transfer surface 34 on the ball part 21, can be formed by spherical cap surfaces for a two-dimensional contact with the transfer surface 34 or protrusions circumscribing in the same way with spherical surface parts be provided, as is the case in the examples of FIGS. 8 to 13.
  • a metallic locking ring 77 is provided, which in FIG. the release position is shown.
  • the securing ring 77 is displaceable on a cylinder jacket surface 79 formed on the outside of the housing halves 71, 73 in a folded-open position, where it comes to rest in a securing position on an annular bead 81.
  • FIG. 16 illustrates a further embodiment of the stop means 17, which differs from the example of FIG. 2 in that the transfer surface for the attachment of the lifting means to the attachment part 21 is not formed by a continuous surface, as in the example of FIG Fig. 2 in the form of the spherical surface 34 is the case, but that in Fig. 16 on the system part 21 a contouring is provided.
  • annular ribs 85 are provided, which, relative to the axis 29 of the stop means 17, extend in radial planes at a distance from each other and are offset from one another by depressions 89.
  • summit regions of the annular ribs 85 are circumscribed by a convexly curved envelope, wherein this envelope can define a spherical surface, ie a sphere, but can also define a curved surface deviating from the spherical shape in the manner of a spheroid.
  • stop means 17 shown in FIG. 17 has, instead of the closed annular ribs 85, rib sections 87 which, starting from the shank part 19, run slightly diverging from one another and are separated from narrower depressions 89. Again, the outer portions of the ribs 87 are circumscribed by an envelope having a convex curvature.
  • the system part 21 has a pattern of extending in radial planes ribs 85 and recesses 89, the latter 85, the ribs under substantially right Intersecting angles so that a pattern is formed of spaced-apart summit regions extending in radial planes which are circumscribed by a convex envelope.
  • the recesses 89 each form receiving spaces in which, where appropriate, when using the stop means resulting contaminants can be added, which could otherwise be disturbing with respect to the geometry of the interaction between the transfer surface and support surface of the lifting device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un moyen d'accrochage comprenant un élément d'ancrage qui peut être relié ou qui est relié à une charge (41) à déplacer et comprenant un élément d'appui (21) présentant au moins une surface de transmission pour la prise d'un moyen de levage de charge (1). Selon l'invention, la surface de transmission est au moins partiellement de forme convexe, de préférence à la manière d'un sphéroïde, ou présente une surface délimitée par une enveloppe à courbure convexe.
EP09735497.1A 2008-04-21 2009-04-20 Moyen d accrochage et système de levage de charge destiné à être utilisé avec un tel moyen d accrochage Not-in-force EP2265536B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810019912 DE102008019912A1 (de) 2008-04-21 2008-04-21 Anschlagmittel sowie Lasthebesystem für die Benutzung mit einem solchen Anschlagmittel
PCT/EP2009/002858 WO2009129975A1 (fr) 2008-04-21 2009-04-20 Moyen d’accrochage et système de levage de charge destiné à être utilisé avec un tel moyen d’accrochage

Publications (2)

Publication Number Publication Date
EP2265536A1 true EP2265536A1 (fr) 2010-12-29
EP2265536B1 EP2265536B1 (fr) 2015-12-02

Family

ID=40834343

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09734477.4A Not-in-force EP2265535B1 (fr) 2008-04-21 2009-03-27 Dispositif de préhension des charges destiné à transmettre les forces de la charge, telles que les forces de câbles ou les forces de serrage, dans le cas de structures plates
EP09735497.1A Not-in-force EP2265536B1 (fr) 2008-04-21 2009-04-20 Moyen d accrochage et système de levage de charge destiné à être utilisé avec un tel moyen d accrochage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09734477.4A Not-in-force EP2265535B1 (fr) 2008-04-21 2009-03-27 Dispositif de préhension des charges destiné à transmettre les forces de la charge, telles que les forces de câbles ou les forces de serrage, dans le cas de structures plates

Country Status (6)

Country Link
US (1) US20110031371A1 (fr)
EP (2) EP2265535B1 (fr)
AU (1) AU2009240282B2 (fr)
DE (1) DE102008019912A1 (fr)
ES (1) ES2546189T3 (fr)
WO (2) WO2009129914A1 (fr)

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CN107601252A (zh) * 2017-07-27 2018-01-19 上海二十冶建设有限公司 一种重型超长混凝土矩形柱的穿透吊装吊具及其吊装方法

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EP2265535B1 (fr) 2015-07-29
AU2009240282B2 (en) 2012-04-26
EP2265535A1 (fr) 2010-12-29
WO2009129914A1 (fr) 2009-10-29
ES2546189T3 (es) 2015-09-21
EP2265536B1 (fr) 2015-12-02
WO2009129975A1 (fr) 2009-10-29
US20110031371A1 (en) 2011-02-10
AU2009240282A1 (en) 2009-10-29
DE102008019912A1 (de) 2009-10-29

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