EP0049708A1 - Dispositif d'accrochage d'une pièce préfabriquée en béton à un engin de levage - Google Patents

Dispositif d'accrochage d'une pièce préfabriquée en béton à un engin de levage Download PDF

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Publication number
EP0049708A1
EP0049708A1 EP80106180A EP80106180A EP0049708A1 EP 0049708 A1 EP0049708 A1 EP 0049708A1 EP 80106180 A EP80106180 A EP 80106180A EP 80106180 A EP80106180 A EP 80106180A EP 0049708 A1 EP0049708 A1 EP 0049708A1
Authority
EP
European Patent Office
Prior art keywords
tongue
plates
attaching
bolt
slot
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
EP80106180A
Other languages
German (de)
English (en)
Other versions
EP0049708B1 (fr
Inventor
Peter Ing. Grad. Hoyer
Walter Funke
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.)
Pfeifer Seil- und Hebetechnik & Co GmbH
Original Assignee
Pfeifer Seil- und Hebetechnik & Co GmbH
Pfeifer Seil und Hebetechnik GmbH and Co
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 Pfeifer Seil- und Hebetechnik & Co GmbH, Pfeifer Seil und Hebetechnik GmbH and Co filed Critical Pfeifer Seil- und Hebetechnik & Co GmbH
Priority to EP80106180A priority Critical patent/EP0049708B1/fr
Priority to AT80106180T priority patent/ATE12757T1/de
Publication of EP0049708A1 publication Critical patent/EP0049708A1/fr
Application granted granted Critical
Publication of EP0049708B1 publication Critical patent/EP0049708B1/fr
Expired 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads

Definitions

  • the invention relates to a device for attaching a prefabricated concrete part to a hoist, consisting of two elements movable relative to one another, the first element being an eyelet or third. for a connecting means with the hoist, and a downwardly open receiving slot for a trestle, which is connected to the precast concrete part and also a guide for the second element, which is designed as a pivotable, remote-controlled mirror, which projects in the locking position with a tongue through the slot, so that the support bracket rests on the tongue during the stroke.
  • DE-PS 22 40 171 describes a device according to the preamble of claim 1, wherein an arc-shaped locking bar is used as the second element, which is movable from a locking position by means of a remote control consisting of a tension member into an open position.
  • the locking position can be achieved by manual control or due to the gravity of the bolt.
  • the invention is based on a device of the type described in the introduction and proposes that a downwardly directed securing lug is formed on the second element, for which a receptacle is provided on the first element, the effective lug height or the effective pan depth being approximately the size of the Match of the second element in the leadership corresponds.
  • An essential consideration on which the invention is based is to obtain a securing device for the locking position by taking advantage of the already inevitable sniel of the elements which are movable relative to one another. It is thereby achieved that a perfect locking position can be achieved even when only slight forces are effective on the device. Incorrect operation, for example an incorrectly operated remote control, is then just as practically impossible as an uncontrollable intermediate position between the two end positions of the bolt.
  • the invention proposes that, in addition to the securing that results from the use of the game in the guides, a snap securing is provided for the two end positions of the second element.
  • This snap lock does not require any special operation, but only increases the forces that the second element holds in the end positions.
  • a frame-shaped actuating arm can be fastened to the second element for this purpose, which encloses the snap lock having a retaining spring.
  • the closing process which generally has to be carried out by hand, is considerably simplified by means of the actuating arm. It is particularly favorable here that the actuating arm is visible from the outside, so that the correct position of the device is visible at any time even from a greater distance. This further reduces the possibilities of incorrect operation and improves the detection of faults.
  • a simple design for the device according to the Invention, which is able to transmit large forces, can be obtained in that the first element consists essentially of two connected plates, between which the second element is movable.
  • the guide in the first element can consist of a sleeve that connects the two plates and that forms the eyelet.
  • the short distances of the bolt in the device according to the invention still allow the attachment of a further security device.
  • this can be achieved in that the tip of the tongue has an increase which limits the support of the support bracket. It is clear that the tongue or the second element can only be opened with the use of conventional forces if no lifting forces act on the bracket. The precast concrete part hanging on the hoist cannot be triggered by a faulty remote control. The low forces, which are normally sufficient for opening the device, no longer cause an opening operation when the load is low.
  • the remote control can be designed in various ways.
  • the invention prefers that a compressed air cylinder is mounted on the first element, the piston rod of which acts on the second element in the direction of the open position of the bolt.
  • the compressed air cylinder is preferably mounted between the two plates of the first element.
  • the invention also proposes that the securing lug is arranged on the underside of the tip of the tongue.
  • the associated receptacle is in particular arranged in a bridge between the plates. In addition to the sleeve, this bridge connects the plates and the forces originating from the support bracket are introduced directly into the plates.
  • the first element 1 of the device consists, as can also be seen in particular from FIG. 1, of the two plates 9 and 10 which are firmly connected to one another by means of the bridge 19 and by means of the sleeve 11.
  • the inner bore of the sleeve 11 results in an eyelet 12 for the wire rope 23, which is part of a hoist, for example.
  • the hoist itself is not shown in detail.
  • the second element 2 is arranged, which also essentially has a plate-like shape.
  • approaches are provided in order to obtain a sufficiently large support 15 for the support bracket 21.
  • the support bracket 21 is formed by a wire rope that is firmly anchored in the precast concrete part 25.
  • the precast concrete part 25 has a recess 26 for this bracket 21 and the shape of the recess 26 allows the insertion of the device consisting essentially of the elements 1 and 2 for detecting the bracket 21.
  • a slot 20 is provided in the plates 9 and 10 for receiving the bracket 21, and when the bracket 21 is gripped, the latch 18 of the element 2 extends through this slot. The locking position is shown in FIG. 2.
  • the front end of the latch 18 is designed as a tongue 22 and the tongue tip 13 has, as can be seen in particular in FIG. 4, a downwardly directed securing lug 3, for which a receiving socket 4 is provided in the bridge 19.
  • the effective height of the nose 3 or the effective depth of the receiving pan 4 corresponds approximately to the dimension, the radial mobility of the element 2 relative to the guide 5, which is formed by the outer circumference of the sleeve 11. 2 and 4, the nose 3 can therefore insert into the pan 4 and if the tongue 22 is loaded by the support bracket 21, an opening movement of the element 2 is thus prevented from twisting in the direction of the arrow 27.
  • the actuating arm 7, which has a frame-like shape, is attached to the element 2. This arm 7 is clearly visible and freely accessible.
  • the arm 7 encloses the snap lock 6 with the spring and the guide rod 29.
  • the guide rod 2R is held in the pivot bearing 29 and finds a guide in the rotatable rod 30 and it is clear that both the position according to FIG. 3 and the position 2 is secured by the spring 8 in each case. While the rod 30 is supported in the arm 7, the pivot bearing 29 is supported on the plates 9 and 10 between the lugs 31.
  • the lugs 31-of the plates 9 and 10 also carry the compressed air cylinder 16, the compressed air connection is designated 32.
  • the piston rod 17 presses on the shoulder 33 on the element 2.
  • the element 2 can be adjusted from the position in FIG. 2 in the direction of arrow 27 to the open position.
  • stops are provided between elements 1 and 2.
  • the closed position i.e. the adjustment from FIG. 3 to FIG. 2 is effected by hand, specifically on the arm 7.
  • the snap lock and the other means ensure a closed position in every position of the device relative to the precast concrete part, and the compressed air cylinder allows the device to be opened in any such position.
  • the compressed air requirement is low, so that simple auxiliary units can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Bridges Or Land Bridges (AREA)
EP80106180A 1980-10-10 1980-10-10 Dispositif d'accrochage d'une pièce préfabriquée en béton à un engin de levage Expired EP0049708B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP80106180A EP0049708B1 (fr) 1980-10-10 1980-10-10 Dispositif d'accrochage d'une pièce préfabriquée en béton à un engin de levage
AT80106180T ATE12757T1 (de) 1980-10-10 1980-10-10 Vorrichtung zum anhaengen eines betonfertigteils an ein hebezeug.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80106180A EP0049708B1 (fr) 1980-10-10 1980-10-10 Dispositif d'accrochage d'une pièce préfabriquée en béton à un engin de levage

Publications (2)

Publication Number Publication Date
EP0049708A1 true EP0049708A1 (fr) 1982-04-21
EP0049708B1 EP0049708B1 (fr) 1985-04-17

Family

ID=8186842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106180A Expired EP0049708B1 (fr) 1980-10-10 1980-10-10 Dispositif d'accrochage d'une pièce préfabriquée en béton à un engin de levage

Country Status (2)

Country Link
EP (1) EP0049708B1 (fr)
AT (1) ATE12757T1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2004213065B2 (en) * 2003-02-21 2009-12-03 Itw Ramset Australia Pty Ltd Panel lifter lock
WO2018073107A1 (fr) 2016-10-19 2018-04-26 Dsm Ip Assets B.V. Cellule eucaryote comprenant de la xylose isomérase

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716997A (en) * 1928-10-31 1929-06-11 Antoniow Tassos Logging hook
US1725609A (en) * 1928-07-11 1929-08-20 Amos Herman Hoisting hook
US2359557A (en) * 1944-06-07 1944-10-03 Hoffman Robert Safety tackle hook
US2561017A (en) * 1949-07-08 1951-07-17 Chicago Steel Foundry Company Safety hook
US2613101A (en) * 1950-10-17 1952-10-07 Roberson Claude Mcjunis Hook latch operating mechanism
US2736599A (en) * 1952-03-08 1956-02-28 Duff Norton Co Drop hook
US2864644A (en) * 1957-09-30 1958-12-16 Earl A Marryatt Cargo hooks
US2987341A (en) * 1959-10-28 1961-06-06 Peck & Hale Releasable hook
DE2240171C3 (de) * 1972-08-16 1975-06-05 Frimeda Metall- Und Drahtwarenfabrik Siegfried Fricker, 7131 Wiernsheim Transportanker
DE7441641U (de) * 1974-12-14 1976-06-16 Fa. Hugo Wupper, 4600 Dortmund Lastaufnahmemittel fuer aufhaengeoesen aufweisende stueckgueter

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725609A (en) * 1928-07-11 1929-08-20 Amos Herman Hoisting hook
US1716997A (en) * 1928-10-31 1929-06-11 Antoniow Tassos Logging hook
US2359557A (en) * 1944-06-07 1944-10-03 Hoffman Robert Safety tackle hook
US2561017A (en) * 1949-07-08 1951-07-17 Chicago Steel Foundry Company Safety hook
US2613101A (en) * 1950-10-17 1952-10-07 Roberson Claude Mcjunis Hook latch operating mechanism
US2736599A (en) * 1952-03-08 1956-02-28 Duff Norton Co Drop hook
US2864644A (en) * 1957-09-30 1958-12-16 Earl A Marryatt Cargo hooks
US2987341A (en) * 1959-10-28 1961-06-06 Peck & Hale Releasable hook
DE2240171C3 (de) * 1972-08-16 1975-06-05 Frimeda Metall- Und Drahtwarenfabrik Siegfried Fricker, 7131 Wiernsheim Transportanker
DE7441641U (de) * 1974-12-14 1976-06-16 Fa. Hugo Wupper, 4600 Dortmund Lastaufnahmemittel fuer aufhaengeoesen aufweisende stueckgueter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2004213065B2 (en) * 2003-02-21 2009-12-03 Itw Ramset Australia Pty Ltd Panel lifter lock
WO2018073107A1 (fr) 2016-10-19 2018-04-26 Dsm Ip Assets B.V. Cellule eucaryote comprenant de la xylose isomérase

Also Published As

Publication number Publication date
EP0049708B1 (fr) 1985-04-17
ATE12757T1 (de) 1985-05-15

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