EP0050055A1 - Hebezange für verschiedene Gegenstände, wie Zementsäcke, Röhren, versammelt in einem Haufen oder Bündel durch einen Umschlag - Google Patents

Hebezange für verschiedene Gegenstände, wie Zementsäcke, Röhren, versammelt in einem Haufen oder Bündel durch einen Umschlag Download PDF

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Publication number
EP0050055A1
EP0050055A1 EP81401424A EP81401424A EP0050055A1 EP 0050055 A1 EP0050055 A1 EP 0050055A1 EP 81401424 A EP81401424 A EP 81401424A EP 81401424 A EP81401424 A EP 81401424A EP 0050055 A1 EP0050055 A1 EP 0050055A1
Authority
EP
European Patent Office
Prior art keywords
lifting
jaw
integral
transverse element
transverse
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.)
Withdrawn
Application number
EP81401424A
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English (en)
French (fr)
Inventor
Bernard Adrien Bunel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0050055A1 publication Critical patent/EP0050055A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/442—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces actuated by lifting force
    • 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
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/422—Gripping members engaging only the external or internal surfaces of the articles actuated by lifting force

Definitions

  • a first drawback of this clamp lies in the fact that it is absolutely not suitable for handling a moving load. Indeed, in order not to disorganize the stack and thus avoid a break in equilibrium, the jaws of the clamp clamp this stack at its base and move away, by their lateral side elements, from its faces.
  • the first consists in immobilizing the fastening member relative to the transverse element of the movable jaw in the vacuum lifting position and an embodiment, which is not very sure, moreover, is given.
  • the second consists, for this same vacuum lifting position, of locking the transverse elements of the two jaws side by side, so that the movable jaw cannot pivot relative to the fixed jaw.
  • the present invention therefore aims to remedy these drawbacks, by developing a clamp which, in all circumstances, positively holds the pile (to prevent its components, such as bags of cement from being able to move relative to the others) and take this pile with efficiency and safety, at the same time as with a certain delicacy thanks to which deterioration is no longer possible and storage perfectly achievable side by side and in superposition.
  • the invention aims to automate the operation of the clamp, so that only the driver is sufficient for its operation and that security is total.
  • the lateral element descending from the fixed jaw is a support plate against which the load can abut over its entire height
  • the immobilization means consists of a device for locking the two transverse elements side by side, which has two conjugate members, one of which is integral with the transverse element of the fixed jaw, while the other is integral with the latching member mounted to slide on the transverse element of the movable jaw, these members engaging during the passage from the lifting position under load to the lifting position when empty.
  • one of the conjugate members of the locking device is constituted by a sleeve mounted to slide along the transverse element of the movable jaw, while the other conjugate member is a protruding finger secured to the transverse element of the fixed jaw and directed towards the coupling mouth of the aforementioned sleeve.
  • the conjugate members of the locking device are constituted, respectively by at least one retainer and at least one grip spur, the spur having an inclined ramp of free end and a locking notch capable of cooperating with said stopper to positively define the vacuum lifting position and to prevent an untimely unhooking of the jaws.
  • the clamp comprises a fixed jaw 1 and a movable jaw 2 articulated relative to each other around an axis 3.
  • the fixed jaw 1 is constituted by an upper transverse element 4, one end of which is integral with a descending side plate 5 which is substantially perpendicular to it.
  • the element 4 is composed of two I-shaped sections, 4a and 4b, extending parallel to each other and suitably braced to provide between them, over part of their length, a space free accessible from above for the aforementioned articulation means and for one of the combined members of an automatic locking device for the jaws therebetween, this device being described in the following.
  • the side plate 5 is a relatively thick trapezoidal sheet and the internal face of which, normally in contact with a pile 6 to handle, projecting ribs favoring the grip.
  • the large base of the plate 5 is reinforced by a spar 7 U-shaped and its height by an upright 8 also U-shaped, the small base of this plate and the upper end of the upright being made integral by welding the two profiles 4a and 4b of the transverse element 4.
  • the movable jaw 2 is constituted by an upper transverse element 9, one end of which is integral with a descending side plate 10 which is slightly inclined relative to a perpendicular plane so as to tend to move further away from it. free end of the element 9 as this plate descends.
  • the element 9 is constituted by two I-shaped sections, 9a and 9b, extending parallel to one another and suitably braced to delimit between them a guide passage for the other conjugate member. of the automatic jaw locking device, this passage opening out through a central slot towards the fixed jaw for the accessibility of said locking members and for the passage of said articulation means.
  • the side plate 10 is, as before, a relatively thick trapezoidal sheet, the internal face of which, normally in contact with the pile 6, has projecting ribs.
  • This sheet is reinforced by a lower spar 11 profiled in U and extending along the large base, as well as by a median upright 12 also profiled in U.
  • the sheet, in the area of its small base, and the upright, at its upper end, are welded to the two sections 9a and 9b of the transverse element 9.
  • the means of articulation of the two jaws relative to each other comprise, on the one hand, a fitting 13 shaped as a yoke, integral by welding of the two sections 9a and 9b of the movable jaw, extending near the plate 10 and projecting downward between the sections 4a and 4b of the fixed jaw as well as on the side of said plate 10 opposite to where the pile to be taken must be.
  • axis 3 which is a cylindrical rod passing through the branches of the fitting 13 and sleeves 14-welded to the cores of the sections 4a and 4b of the fixed jaw, the free ends of this axis being immobilized in translation by means of pins 15.
  • the pile 6 to be handled consists, in the example chosen, of a stack of bags of cement whose orientation is thwarted from one layer to the next, these bags being held against each other by a plastic envelope. Consequently, all the heaps have the same conformation and the same dimensioning, but have a certain geometric movement or instability, which is specific to each bag and to the whole of the bags with respect to each other. Under these conditions, the pliers described in the foregoing must keep each pile in shape in order to be able to take it and handle it without the risk of tearing the envelope, puncturing the bags, sagging of the pile ...
  • this locking device comprises a sliding sleeve 17 which is guided in translation in the corridor delimited between the sections 9a and 9b of the transverse element 9 of the movable jaw 2.
  • the sliding sleeve is integral with a attachment member such as a ring 18, which can be suspended from the lifting gear.
  • the conjugate member of the automatic locking device which cooperates with the sleeve 17 is constituted by a projecting finger 19 secured to the transverse element 4 of the fixed jaw 1 and directed towards the mouth of the sleeve 17; more precisely, this finger is the horizontal part of a rod shaped as a double hook and the vertical part of which crosses the slot which separates the profiles 4a and 4b of the fixed jaw, is integral with a bar 20 welded to these sections, bar which at the same time allows them to be braced.
  • the sleeve 17 is fitted onto the finger 19 and thus ensures the locking of the movable jaw 2 relative to the fixed jaw 1, so that its transverse element 9 is contiguous with the 'transverse element 4; this is the empty lifting position; in this position which is defined by the location of the finger 19, the hooking ring 18 is located at one of its limit switches, for which the vertical suspension passes substantially through the center of gravity of the clamp empty; in reality, there is a very slight offset so that the clamp leans slightly towards the side of the fixed plate 5.
  • the sleeve 17 In its other extreme position, the sleeve 17 is stopped by a stop 21 which joins, by bracing them, the sections 9a and 9b of the movable jaw; the sleeve is therefore no longer engaged with the finger 19 and thus releases the movable jaw 2.
  • the lifting device by pulling on the hooking ring 18 causes the pivoting of the movable jaw 2 relative to the fixed jaw 1 around the axis 3, until (FIG.
  • the device for locking the two jaws with respect to each other can be of another type as long as the blocking of this device and its unlocking are automatically dependent on movement by the machine. lifting of the attachment point along the transverse element of any one of the jaws.
  • the clamp comprises identical members which, therefore, are designated by the same references and are therefore not described again.
  • the originality of this second embodiment compared to the first lies essentially in the automatic locking device.
  • This locking device comprises a slide or carriage 25 guided in translation in the corridor delimited by the profiles of the transverse element 9 of the movable jaw 2.
  • the slide 25 is integral with a lug 26 crossed by the bolt of a shackle 27 capable of being taken up by the hook 28 of the cable of a lifting machine.
  • the conjugate members of the locking device consist respectively of at least one stopper 29 and a grip spur 30, the latter having an inclined ramp 31 located at its free end towards the stopper and a locking notch 32 placed behind.
  • the retainer 29 is a transverse rod connecting the profiles of the fixed jaw 1 and extending in the free space formed between them;
  • the grip spur 30 is made integral with the slide 25 by a posterior descending foot 33 and advances in cantilever towards the axis 3.
  • the inclined ramp 31 is ascending from its end towards the foot 33; moreover, when the clamp rests on the ground so that its transverse elements 4 and 9 are in contact with each other, the crest of the ramp 31 is at a lower level relative to the stopper rod 29 ( figure 7). Consequently, if the slide 25 is moved in translation towards the axis 3 by the hook 28 but without lifting, the spur 30 is brought under the stopper rod 29 without touching it.
  • the relative positions of the combined members of the locking device can be reversed, the stopper (s) being then secured to the slide 25 of the movable jaw and the spur (s) of the element 4 of the fixed jaw. But in this case, these are located above the sliding stop (s) when the elements 4 and 9 are in contact.
  • the side plates 5 and 10 have low support wings 23 and 24 converging towards one another.
  • the plates and these wings are then reinforced by the side members 7 and 11, the uprights 8 and 12 as well as the corner gussets 8a and lOa.
  • said side plates 5 and 10 are secured to low rulers carrying elastic buffers directed towards each other and likely to take in the pressing the bottom row of the pile.
EP81401424A 1980-09-17 1981-09-11 Hebezange für verschiedene Gegenstände, wie Zementsäcke, Röhren, versammelt in einem Haufen oder Bündel durch einen Umschlag Withdrawn EP0050055A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8020034A FR2490204A1 (fr) 1980-09-17 1980-09-17 Pince de levage pour produits divers, tels que des sacs de ciment, des tubes reunis en tas ou en gerbe par une enveloppe
FR8020034 1980-09-17

Publications (1)

Publication Number Publication Date
EP0050055A1 true EP0050055A1 (de) 1982-04-21

Family

ID=9246032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401424A Withdrawn EP0050055A1 (de) 1980-09-17 1981-09-11 Hebezange für verschiedene Gegenstände, wie Zementsäcke, Röhren, versammelt in einem Haufen oder Bündel durch einen Umschlag

Country Status (3)

Country Link
EP (1) EP0050055A1 (de)
ES (1) ES269121Y (de)
FR (1) FR2490204A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911529A1 (fr) * 2007-01-24 2008-07-25 Peugeot Citroen Automobiles Sa Dispositif de prehension, notamment pour le montage d'une cremaillere de direction de vehicule.
WO2012095540A1 (es) * 2011-01-12 2012-07-19 Rubrica Ingenieria Y Arquitectura, S.L. Pinza para manipular grandes cargas
DE102016102870A1 (de) 2016-02-18 2017-08-24 David Schneider Hebezange für Dachpaneelen
CN113482016A (zh) * 2021-05-25 2021-10-08 山东高速工程建设集团有限公司 一种袋装固化淤泥的堤坝填筑方法
CN117361307A (zh) * 2023-12-08 2024-01-09 河南省大方重型机器有限公司 一种用于粉料的起重吊装搬运装置

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR411281A (fr) * 1910-01-05 1910-06-13 Claude Mazard Appareil pour le transport d'objets divers et notamment des matériaux de construction
US2370528A (en) * 1942-07-15 1945-02-27 Robert A Fontaine Material handling device
US2416575A (en) * 1944-11-28 1947-02-25 Robert A Fontaine Brick grab
US2457646A (en) * 1946-05-16 1948-12-28 Dalferes Anthony Wilmot Lifting tongs
GB645790A (en) * 1948-10-08 1950-11-08 Rutherford William An improved device for lifting flat slabs such as pavement flags
US2866660A (en) * 1955-08-03 1958-12-30 L A Spring & Wire Corp Block-lifting grab
DE1113800B (de) * 1959-04-10 1961-09-14 Peter Moskopf Vielfachgreifer zum Stapeln von Betonplatten, Steinen u. dgl.
FR1273652A (fr) * 1960-11-15 1961-10-13 Véhicule pour la préhension, l'empilage et le chargement ou le transbordement d'éléments de construction ou analogues
US3068036A (en) * 1960-09-22 1962-12-11 John T Doty Automatic pipe handling tongs
FR1355294A (fr) * 1963-04-30 1964-03-13 Dispositif de préhension pour éléments à saisir par couches
GB953261A (en) * 1961-05-01 1964-03-25 Bickerstaff Inc Apparatus for lifting stacked building units
DE1252864B (de) * 1964-01-17 1967-10-26 Josef Meindl O H G Greifer zum Erfassen von grobkeramischen Koerpern
FR1547954A (fr) * 1967-12-12 1968-11-29 Valmet Oy Dispositif de préhension et de levage d'une charge, notamment pour chariots élévateurs à portique

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR411281A (fr) * 1910-01-05 1910-06-13 Claude Mazard Appareil pour le transport d'objets divers et notamment des matériaux de construction
US2370528A (en) * 1942-07-15 1945-02-27 Robert A Fontaine Material handling device
US2416575A (en) * 1944-11-28 1947-02-25 Robert A Fontaine Brick grab
US2457646A (en) * 1946-05-16 1948-12-28 Dalferes Anthony Wilmot Lifting tongs
GB645790A (en) * 1948-10-08 1950-11-08 Rutherford William An improved device for lifting flat slabs such as pavement flags
US2866660A (en) * 1955-08-03 1958-12-30 L A Spring & Wire Corp Block-lifting grab
DE1113800B (de) * 1959-04-10 1961-09-14 Peter Moskopf Vielfachgreifer zum Stapeln von Betonplatten, Steinen u. dgl.
US3068036A (en) * 1960-09-22 1962-12-11 John T Doty Automatic pipe handling tongs
FR1273652A (fr) * 1960-11-15 1961-10-13 Véhicule pour la préhension, l'empilage et le chargement ou le transbordement d'éléments de construction ou analogues
GB953261A (en) * 1961-05-01 1964-03-25 Bickerstaff Inc Apparatus for lifting stacked building units
FR1355294A (fr) * 1963-04-30 1964-03-13 Dispositif de préhension pour éléments à saisir par couches
DE1252864B (de) * 1964-01-17 1967-10-26 Josef Meindl O H G Greifer zum Erfassen von grobkeramischen Koerpern
FR1547954A (fr) * 1967-12-12 1968-11-29 Valmet Oy Dispositif de préhension et de levage d'une charge, notamment pour chariots élévateurs à portique

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911529A1 (fr) * 2007-01-24 2008-07-25 Peugeot Citroen Automobiles Sa Dispositif de prehension, notamment pour le montage d'une cremaillere de direction de vehicule.
WO2012095540A1 (es) * 2011-01-12 2012-07-19 Rubrica Ingenieria Y Arquitectura, S.L. Pinza para manipular grandes cargas
ES2395344A1 (es) * 2011-01-12 2013-02-12 Rubrica Ingenieria Y Arquitectura, S.L. Pinza para manipular grandes cargas
EP2664574A4 (de) * 2011-01-12 2013-11-20 Rubrica Ingenieria Y Arquitectura Sl Klemme zur handhabung grosser lasten
EP2664574A1 (de) * 2011-01-12 2013-11-20 Rubrica Ingenieria Y Arquitectura, S.L. Klemme zur handhabung grosser lasten
DE102016102870A1 (de) 2016-02-18 2017-08-24 David Schneider Hebezange für Dachpaneelen
CN113482016A (zh) * 2021-05-25 2021-10-08 山东高速工程建设集团有限公司 一种袋装固化淤泥的堤坝填筑方法
CN117361307A (zh) * 2023-12-08 2024-01-09 河南省大方重型机器有限公司 一种用于粉料的起重吊装搬运装置
CN117361307B (zh) * 2023-12-08 2024-03-12 河南省大方重型机器有限公司 一种用于粉料的起重吊装搬运装置

Also Published As

Publication number Publication date
FR2490204B1 (de) 1984-03-09
ES269121Y (es) 1984-02-16
FR2490204A1 (fr) 1982-03-19
ES269121U (es) 1983-08-01

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