EP0121767A2 - Screw-fastened lifting device - Google Patents

Screw-fastened lifting device Download PDF

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Publication number
EP0121767A2
EP0121767A2 EP84102388A EP84102388A EP0121767A2 EP 0121767 A2 EP0121767 A2 EP 0121767A2 EP 84102388 A EP84102388 A EP 84102388A EP 84102388 A EP84102388 A EP 84102388A EP 0121767 A2 EP0121767 A2 EP 0121767A2
Authority
EP
European Patent Office
Prior art keywords
screw
lifting device
connecting member
supporting tube
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
EP84102388A
Other languages
German (de)
French (fr)
Other versions
EP0121767A3 (en
EP0121767B1 (en
Inventor
Gottfried Hennig
Johann Dipl.-Ing. Wäger
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT84102388T priority Critical patent/ATE22270T1/en
Publication of EP0121767A2 publication Critical patent/EP0121767A2/en
Publication of EP0121767A3 publication Critical patent/EP0121767A3/en
Application granted granted Critical
Publication of EP0121767B1 publication Critical patent/EP0121767B1/en
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
    • B66C1/62—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
    • B66C1/666—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 for connection to anchor inserts embedded in concrete structures

Definitions

  • the invention relates to a screwable lifting device for conveying a solid body by means of releasable connecting elements which are dependent on the lifting gear, with at least two lifting devices being attached to the body for positionally stable transportation and each lifting device being supported on the surface of the body via a pressure plate.
  • Known lifting devices of this type which are screwed into floor groups of concrete bodies for lifting and lowering them by means of lifting devices, namely in flush-cast threaded bushes welded to the steel reinforcement of the concrete bodies, are closed eyelets with molded pressure plates and screws which are made from one piece consist.
  • the eyelets For the immediate insertion of hooks or shackles, the eyelets must either be sized appropriately, or ropes must be threaded into small eyelets and then formed into figure-eight loops in which the hooks or shackles can be hung.
  • Such lifting devices are special constructions, which are also still relatively expensive, so that after they have been transported they have to be removed from the bodies and returned for reuse. In many cases the acceptance or at least the return of these lifting devices is omitted.
  • the invention has for its object to provide a lifting device of the type mentioned, which is simple to manufacture and can be manufactured with simple means, if necessary, at the place of use.
  • the lifting device is in several parts and from a head screw protruding from the body in the screwed-in state, a thrust washer penetrated by the screw, and a support tube for the thrust pipe surrounding the screw with an axial gap surrounding it assigned connecting member and a pressed against the support tube, penetrated by the screw and supported on the screw head, protruding transversely to the longitudinal axis of the screw over the support tube for the connecting member.
  • the concrete body 1 in the floor area 1A has cast-in at several distributed locations and with the reinforcement 2 anchored threaded bushings 3, which are flush with the outer wall and serve to accommodate screwable lifting devices.
  • Each lifting device is formed in several parts from conventional elements and can therefore be easily manufactured if necessary at the charging point of the concrete body. For this purpose, only one head screw 4, in particular a standardized hexagon screw, can be screwed into the threaded bushing 3 for each lifting device.
  • the securing part 6 can consist of a flat bar which projects beyond the rope loop 9 and projects beyond the end face of the support tube 7 on all sides.
  • the screw head 4A optionally engages via a washer 5 on the securing part 6 and presses the supporting tube 7 firmly against the thrust washer 8 when the screw 4 is screwed into the threaded bushing 3 via the securing part 6, so that the supporting tube is subjected to a bending stress when the concrete body 1 is raised and lowered prevents the screw 4, which is thus only exposed to shear stress.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Transmission Devices (AREA)

Abstract

1. A multi-part lifting device which can be detachably brought into engagement with a connecting element (9) dependent from a lifting apparatus and which lifting device can be screwed to a solid body (1) to be transported, by a cap screw (4), in which the cap screw passes loosely through a pressure disc (8) which is supported on the body, a supporting sleeve (7) which is adjacent to said pressure disc, and a support (6) which is clamped between said sleeve and the screw head (4a) and holds all the parts together, characterized in that at its periphery, the sleeve (7) can be brought directly into engagement with the connecting element (9) and the support (6) is formed as a safety member for the connecting element which protrudes beyond the sleeve transversely to the longitudinal axis of the screw.

Description

Die Erfindung betrifft eine schraubbare Anhebevorrichtung zum Befördern eines festen Körpers mittels hebezeugabhängiger lösbarer Verbindungsglieder, wobei zur lagestabilen Beförderung mindestens zwei Anhebevorrichtungen am Körper angebracht sind und jede Anhebevorrichtung über eine Druckplatte an der Oberfläche des Körpers abgestützt ist.The invention relates to a screwable lifting device for conveying a solid body by means of releasable connecting elements which are dependent on the lifting gear, with at least two lifting devices being attached to the body for positionally stable transportation and each lifting device being supported on the surface of the body via a pressure plate.

Bei bekannten Anhebevorrichtungen dieser Art, die in Bodengruppen von Betonkörpern zum Heben und Senken derselben mittels Hebezeugen eingeschraubt werden, und zwar in mit der Stahlarmierung der Betonkörper verschweißten bündig eingegossenen Gewindebuchsen, handelt es sich um geschlossene Ösen mit angeformten Druckplatten und Schrauben, die aus einem Stück bestehen. Die Ösen müssen zum unmittelbaren Einbringen von Haken oder Schäkeln entweder entsprechend groß bemessen werden oder es müssen in kleinen Ösen Seile eingefädelt und diese danach zu achterförmigen Schlaufen ausgebildet werden, in die die Haken oder Schäkel eingehängt werden können.Known lifting devices of this type, which are screwed into floor groups of concrete bodies for lifting and lowering them by means of lifting devices, namely in flush-cast threaded bushes welded to the steel reinforcement of the concrete bodies, are closed eyelets with molded pressure plates and screws which are made from one piece consist. For the immediate insertion of hooks or shackles, the eyelets must either be sized appropriately, or ropes must be threaded into small eyelets and then formed into figure-eight loops in which the hooks or shackles can be hung.

Solche Anhebevorrichtungen stellen Spezialkonstruktionen dar, die zudem noch relativ teuer sind, so daß sie nach erfolgter Beförderung aus den Körpern entfernt und zum erneuten Einsatz zurückgebracht werden müssen. Vielfach unterbleibt die Abnahme oder zumindest die Rückgabe dieser Anhebevorrichtungen.Such lifting devices are special constructions, which are also still relatively expensive, so that after they have been transported they have to be removed from the bodies and returned for reuse. In many cases the acceptance or at least the return of these lifting devices is omitted.

Der Erfindung liegt die Aufgabe zugrunde, eine Anhebevorrichtung der eingangs genannten Art zu schaffen, die einfach in der Herstellung ist und gegebenenfalls mit einfachen Mitteln auch am Einsatzort gefertigt werden kann.The invention has for its object to provide a lifting device of the type mentioned, which is simple to manufacture and can be manufactured with simple means, if necessary, at the place of use.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß die Anhebevorrichtung mehrteilig ist und aus einer im eingeschraubten Zustand aus dem Körper herausragenden Kopfschraube, einer von der Schraube durchdrungenen Druckscheibe, einem an der Druckscheibe anliegenden, die Schraube mit axialem Zwischenraum umgebenden Tragrohr für das zugeordnete Verbindungsglied und einem an das Tragrohr angedrückten, von der Schraube durchdrungenen und sich am Schraubenkopf abstützenden, quer zur Schraubenlängsachse über das Tragrohr vorstehenden Sicherungsteil für das Verbindungsglied besteht.The object is achieved according to the invention in that the lifting device is in several parts and from a head screw protruding from the body in the screwed-in state, a thrust washer penetrated by the screw, and a support tube for the thrust pipe surrounding the screw with an axial gap surrounding it assigned connecting member and a pressed against the support tube, penetrated by the screw and supported on the screw head, protruding transversely to the longitudinal axis of the screw over the support tube for the connecting member.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand weiterer Ansprüche.Advantageous embodiments of the invention are the subject of further claims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und nachfolgend erläutert. Es zeigt

  • Fig. 1 eine Anhebevorrichtung in der Bodengruppe eines Betonkörpers von vorne,
  • Fig. 2 den Gegenstand der Fig. 1 im Schnitt von der Seite.
An embodiment of the invention is shown in the drawing and explained below. It shows
  • 1 is a lifting device in the bottom group of a concrete body from the front,
  • Fig. 2 shows the object of Fig. 1 in section from the side.

Zum Aufladen eines armierten Betonkörpers 1 von rechteckförmiger wannenartiger Gestalt, z.B. als Bodengruppe eines Gehäuses auf ein Fahrzeug bzw. zum Abladen des Betonkörpers mit einem entfernten Aufstellungsort des Gehäuses mittels eines Hebezeuges weist der Betonkörper 1 im Bodenbereich 1A an mehreren verteilten Stellen eingegossene und mit der Armierung 2 verankerte Gewindebuchsen 3 auf, die bündig mit der Außenwand abschließen und zur Aufnahme von schraubbaren Anhebevorrichtungen dienen. Jede Anhebevorrichtung ist mehrteilig aus üblichen Elementen gebildet und kann demnach am Aufladeort des Betonkörpers notfalls auf einfache Weise hergestellt werden. Hierzu werden für jede Anhebevorrichtung nur eine in die Gewindebuchse 3 einschraubbare Kopfschraube 4, insbesondere eine genormte Sechskantschraube, eine von der Schraube 4 durchdrungene kreisförmige Druckscheibe 8 zum Abstützen eines die Schraube 4 mit axialem Zwischenraum umgebenden Tragrohres 7 sowie ein von der Schraube 4 durchdrungenes und quer zur Schraubenlängsachse über das Tragrohr 7 vorstehendes Sicherungsteil 6 für das Verbindungsglied 9 benötigt, das in Form einer Seilschlaufe um das Tragrohr geschlungen ist und durch das Sicherungsteil 6 am Abrutschen gehindert wird. Das Sicherungsteil 6 kann aus einem über die Seilschlaufe 9 hinausragenden flachen Riegel bestehen, der die Stirnseite des Tragrohres 7 allseitig überragt. Der Schraubenkopf 4A greift gegebenenfalls über eine Unterlegscheibe 5 am Sicherungsteil 6 an und preßt beim Einschrauben der Schraube 4 in die Gewindebuchse 3 über das Sicherungsteil 6 das Tragrohr 7 fest gegen die Druckscheibe 8, so daß beim Heben und Senken des Betonkörpers 1 das Tragrohr eine Biegebeanspruchung der Schraube 4 verhindert, die somit nur einer Scherbeanspruchung ausgesetzt wird.To load a reinforced concrete body 1 of a rectangular trough-like shape, e.g. as a floor assembly of a housing onto a vehicle or to unload the concrete body with a remote installation location of the housing by means of a lifting device, the concrete body 1 in the floor area 1A has cast-in at several distributed locations and with the reinforcement 2 anchored threaded bushings 3, which are flush with the outer wall and serve to accommodate screwable lifting devices. Each lifting device is formed in several parts from conventional elements and can therefore be easily manufactured if necessary at the charging point of the concrete body. For this purpose, only one head screw 4, in particular a standardized hexagon screw, can be screwed into the threaded bushing 3 for each lifting device. a circular thrust washer 8 penetrated by the screw 4 for supporting a supporting tube 7 surrounding the screw 4 with an axial gap, and a securing part 6 for the connecting member 9 which is penetrated by the screw 4 and protrudes transversely to the longitudinal axis of the screw via the supporting tube 7 and which is in the form of a rope loop is wrapped around the support tube and is prevented from slipping by the securing part 6. The securing part 6 can consist of a flat bar which projects beyond the rope loop 9 and projects beyond the end face of the support tube 7 on all sides. The screw head 4A optionally engages via a washer 5 on the securing part 6 and presses the supporting tube 7 firmly against the thrust washer 8 when the screw 4 is screwed into the threaded bushing 3 via the securing part 6, so that the supporting tube is subjected to a bending stress when the concrete body 1 is raised and lowered prevents the screw 4, which is thus only exposed to shear stress.

Durch die Wahl des Durchmessers und der Länge des Tragrohres ist eine einfache Anpassung an den Seildurchmesser der Seilschlaufe 9 möglich und bei entsprechendem Rohrdurchmesser wird eine ausreichend große Schlaufe gewährleistet.Through the choice of the diameter and the length of the support tube, a simple adaptation to the rope diameter of the rope loop 9 is possible, and a sufficiently large loop is ensured with a corresponding tube diameter.

Claims (4)

1. Schraubbare Anhebevorrichtung zum Befördern eines festen Körpers (1) mittels hebezeugabhängiger lösbarer Verbindungsglieder (9), wobei zur lagestabilen Beförderung mindestens zwei Anhebevorrichtung am Körper (1) angebracht sind und jede Anhebevorrichtung über eine Druckplatte (8) an der Oberfläche des Körpers (1) abgestützt ist, dadurch gekennzeichnet , daß die Anhebevorrichtung mehrteilig ist und aus einer im eingeschraubten Zustand aus dem Körper (1) herausragenden Kopfschraube (4), einer von der Schraube durchdrungenen Druckscheibe (8), einem an der Druckscheibe (8) anliegenden, die Schraube mit axialem Zwischenraum umgebenden Tragrohr (7) für das zugeordnete Verbindungsglied (9) und einem an das Tragrohr (7) angedrückten, von der Schraube (4) durchdrungenen und sich am Schraubenkopf (4A) abstützenden, quer zur Schraubenlängsachse über das Tragrohr (7) vorstehenden Sicherungsteil (6) für das Verbindungsglied (9) besteht.1. Screwable lifting device for conveying a solid body (1) by means of releasable connecting members (9) depending on the lifting device, with at least two lifting devices being attached to the body (1) for positionally stable transportation and each lifting device via a pressure plate (8) on the surface of the body (1 ) is supported, characterized in that the lifting device consists of several parts and consists of a head screw (4) protruding from the body (1) in the screwed-in state, a pressure disk (8) penetrated by the screw, and one resting on the pressure disk (8) Screw with a supporting tube (7) surrounding the axial space for the associated connecting member (9) and a supporting element (9) pressed onto the supporting tube (7), penetrated by the screw (4) and supported on the screw head (4A), across the supporting tube (7 ) protruding securing part (6) for the connecting member (9). 2. Anhebevorrichtung nach Anspruch 1, dadurch gekennzeichnet , daß das Tragrohr (7) betriebsmäßig außermittig zur Schraube (4) an deren Unterseite anliegt.2. Lifting device according to claim 1, characterized in that the support tube (7) rests operationally off-center to the screw (4) on the underside thereof. 3. Anhebevorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet , daß das Tragrohr (7) in seiner Länge und seinem Außendurchmesser an die Abmessungen des Verbindungsgliedes (9) angepaßt ist.3. Lifting device according to claim 1 and 2, characterized in that the supporting tube (7) in its length and its outer diameter is adapted to the dimensions of the connecting member (9). 4. Anhebevorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet , daß das Sicherungsteil (6) aus einem über das Verbindungsglied hinausragenden flachen Riegel und die Druckscheibe (8) aus einer über das Tragrohr (7) vorragenden Kreisscheibe besteht.4. Lifting device according to claim 1 or 2, characterized in that the securing part (6) consists of a projecting beyond the connecting member flat bar and the pressure plate (8) consists of a circular disc projecting over the support tube (7).
EP84102388A 1983-03-16 1984-03-05 Screw-fastened lifting device Expired EP0121767B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84102388T ATE22270T1 (en) 1983-03-16 1984-03-05 SCREWABLE LIFTING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838307694U DE8307694U1 (en) 1983-03-16 1983-03-16 SCREWABLE LIFTING DEVICE
DE8307694U 1983-03-16

Publications (3)

Publication Number Publication Date
EP0121767A2 true EP0121767A2 (en) 1984-10-17
EP0121767A3 EP0121767A3 (en) 1985-03-27
EP0121767B1 EP0121767B1 (en) 1986-09-17

Family

ID=6751181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84102388A Expired EP0121767B1 (en) 1983-03-16 1984-03-05 Screw-fastened lifting device

Country Status (3)

Country Link
EP (1) EP0121767B1 (en)
AT (1) ATE22270T1 (en)
DE (2) DE8307694U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560664A (en) * 1993-04-08 1996-10-01 Halfen Gmbh & Co. Kommanditgesellschaft Device for coupling a cable of a lifting device to a prefabricated component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8307694U1 (en) * 1983-03-16 1983-08-11 Siemens AG, 1000 Berlin und 8000 München SCREWABLE LIFTING DEVICE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371951A (en) * 1966-12-19 1968-03-05 John G. Bryant Material handling fittings
US3905633A (en) * 1974-09-30 1975-09-16 Caterpillar Tractor Co Swivel mounted lifting eye for engines
DE7820646U1 (en) * 1978-07-10 1978-10-19 Berndorfer, Hermann, 8860 Noerdlingen SPACE CELL, IN PARTICULAR PRE-FABRICATED GARAGE
DE8006973U1 (en) * 1980-03-14 1980-06-12 Fa. Friedrich Schroeder, 5982 Neuenrade RING SCREW
DE8307694U1 (en) * 1983-03-16 1983-08-11 Siemens AG, 1000 Berlin und 8000 München SCREWABLE LIFTING DEVICE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371951A (en) * 1966-12-19 1968-03-05 John G. Bryant Material handling fittings
US3905633A (en) * 1974-09-30 1975-09-16 Caterpillar Tractor Co Swivel mounted lifting eye for engines
DE7820646U1 (en) * 1978-07-10 1978-10-19 Berndorfer, Hermann, 8860 Noerdlingen SPACE CELL, IN PARTICULAR PRE-FABRICATED GARAGE
DE8006973U1 (en) * 1980-03-14 1980-06-12 Fa. Friedrich Schroeder, 5982 Neuenrade RING SCREW
DE8307694U1 (en) * 1983-03-16 1983-08-11 Siemens AG, 1000 Berlin und 8000 München SCREWABLE LIFTING DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5560664A (en) * 1993-04-08 1996-10-01 Halfen Gmbh & Co. Kommanditgesellschaft Device for coupling a cable of a lifting device to a prefabricated component

Also Published As

Publication number Publication date
EP0121767A3 (en) 1985-03-27
EP0121767B1 (en) 1986-09-17
DE8307694U1 (en) 1983-08-11
DE3460736D1 (en) 1986-10-23
ATE22270T1 (en) 1986-10-15

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