EP0723927B1 - Suspension device for suspending at least a concrete forming-panel on a lifting device - Google Patents

Abstract

A locking element (17) below the hook (12) grips under the hook at least in the hole (9) in the reinforcement piece (7). The suspension (1) has a holder bracket (10) joined to a support (11). Above the hook the support has at least one protuberance (18) insertable into a flange (5) in an edge piece, when the hooked protuberance (14) at least partly grips behind the top edge (15) of the hole in the reinforcement piece. In this position, the inwardly displaced locking element grips under the hook.

Description

The invention relates to a hitch and a formwork panel with the hitch for hanging serves at least one formwork panel on a hoist and has a support body and wherein the form board is perpendicular to the surface to be concreted running, with beads or gutters for the attack of fastening clips provided edge webs or edge profiles and also has stiffening profiles running at right angles to it, which stiffening profiles parallel to the formlining at a distance these have arranged webs and openings in these webs, wherein the support body one in the use position upwards aligned and open hook with a hook base and a protruding hook projection to this Hooking into a breakthrough of a stiffening profile and a perforation in the support body and a relative to this in the Support body adjustable locking element is provided, which in Release position is withdrawn from the hook, the Overall dimension of the hook with the hook projection equal to or smaller the dimension of the opening in the web of the stiffening profile in the vertical or oblique direction and the total dimensions of the locking element and the hook minus that of the hook projection is equal to or less than the corresponding one Dimension of the opening in the web of the stiffening profile is.

Such a hitch for hanging components is known from DE-87 13 587 U1. The device can only on a breakthrough of a web or the like attack the component, that is, the total weight must on the one hand about this breakthrough and the catch and that Locking element on the other hand are transmitted. Heavy and large formwork panels can have the strength of a weight Stiffen webs and a perforation on them so that the hitch would then not be applicable. Furthermore is unfavorable that the locking element in the use position above the downward opening hook and one has a smaller cross-section than a bolt belonging to the hook, so that an approximately eight in the component to be suspended appropriate perforation is required, the upper opening part must be smaller than the one below.

DE-29 43 623 C2 is a hitch for hitching a Formwork panel on a hoist with a bracket known can attack a crane hook. This bracket is on one Carrier attached, the anchoring means for connecting to Has edge webs of formwork panels. They are made of flat material existing edge webs or stiffening webs arranged at right angles to it suitable for capturing the keyhole-like Perforations for the engagement of a bolt with a corresponding one Must have a head start on the known hitch belonging bolts in a release and a locking position is rotatable in which its projection is transverse to the keyhole-like Perforation is arranged.

DE-93 18 523 U1 and DE 41 03 775 C2 are formwork panels with differently designed edge webs and stiffening profiles known. These usually don't have any keyhole-like Openings so that the hitch according to DE-29 43 623 C2 cannot attack on these formwork panels.

The invention is therefore based on the object of a hitch of the type mentioned in the introduction to create simple Wise and yet with great certainty on panels at the beginning mentioned type can be attached. The handling should be easy.

To solve this problem is the hitch mentioned above with support body characterized in that the locking element is provided below the hook and in the use position the hook at least in the breakthrough of the stiffening profile engages that the hitch is an attack or Has bracket, which is connected to the support body and that the support body above its hook at least one in has a bead of the edge profile insertable projection, which in the bead engages when the hook projection protrudes the upper edge of the Breakthrough of the stiffening profile at least partially engages behind, and that in this position the hook from the inside adjusted locking element is gripped.

In this way, the support body with the hook through Breakthrough of the web of the stiffening profile introduced and with hook opening at the top of this opening become. The dimensions given allow this on the one hand Introduce and then after pushing up the Carrying body and the hook the insertion of the locking element under the hook so that it is fixed in the position of use. Of the In this position of use, the hook projection engages behind the edge of the breakthrough, so that a release from the breakthrough is no longer is possible.

Thus, this hitch can be attached in a very simple manner a corresponding stiffening profile can be attached, which either over the entire length or width of the formwork panel or else even over an edge area of the formwork panel between one Edge web and a parallel to this edge web Stiffening profile can be arranged. Even solving this Hitch is very simple by putting the locking element back in withdrawn, after which the support body as far as compared to the Breakthrough in the web of the stiffening profile can be lowered can that the hook can be removed again. The one there mentioned dimension of the opening in an oblique direction could be the diagonal of a rectangular breakthrough.

This results in a particularly effective and safe Attachment of the formwork panels mentioned above by the above of the hook on the support body located in a projection Beading can intervene. Thus, a formwork panel is not only on a breakthrough of a stiffening profile, but at the same time also recorded on the edge profile. A detection of the Edge profile give a cheaper lever arm, while at the same time the hook with its hook projection in one horizontal direction the hitch against unwanted Loosen sets, so that the edge web is not from the projection can slip, even if there are unwanted vibrations or Wind loads or the like comes.

It is particularly favorable for a secure locking of the Hitch if opposite the length of the hook projection the bottom of the hook is approximately equal to that running in this direction Dimension of the locking element is and if the locking element with in the position of use in the opening of the stiffening profile engaging hook this breakthrough at least in stress or Carrying direction in particular essentially fills and / or is preferably jammed in the opening. The catch can then just be introduced through the breakthrough and will be around the Length of the hook projection opposite the upper edge of the Breakthrough adjusted so that a corresponding below the hook Area of the breakthrough will become clear Closes the locking element with the appropriate dimension and fills out.

To initiate the load capacities especially in the edge profiles ensure the distance of the hook base from the The same lead or a game greater than the height difference the upper edge of the breakthrough should be from the bead. At the same The projection and the hook base become dimensions at the same time at the top of the breakthrough. As this however difficult to achieve due to manufacturing tolerances is, you can also the distance of the hook base from the projection make it a little bit bigger so that in any case the first step comes to fruition, which is usually a minor and reversible deformation of the edge web under load, so that then the hook with the hook base in contact with the top of the breakthrough and protrusion and hook the Take over load capacities.

The support body can have an approximately U-shaped cross-sectional profile and a stiffening profile of the formwork panel in the position of use reach around on the outside, with the U crossbar of the support body in Use position on the stiffening profile on the outside in the area of its breakthrough, and the two U-legs can on its front side pointing upwards in the use position in particular a protrusion for engaging in the bead of the footbridge. This improves the symmetry of the force attack and above all the engagement of the support body in the Beading of the edge web. In addition, by grasping of the stiffening profile the projections in a corresponding Position to the bead and the opposite of the breakthrough of the stiffening profile is usually closer to the formlining Bead and the breakthrough result in a vertical projection due to their mutual distance a good edition, in which practically three points come into play, namely the two Projections and the hook bottom. The two protrusions lie here with their attack points practically in one horizontal plane and the third point of attack is not only at a greater distance from the formwork skin, but also in a different one Height arranged. On the other hand, there is the point of attack of the hook with a symmetrical design of the support body in one middle position between the two projections, so that a vertical projection of all points of attack to an isosceles Triangle leads, which is known to have a high stability results.

The considerable importance of the locking element has already been mentioned. For its operation and definition, it is useful if on the outside of the U-leg facing away from the U-legs Support body in the area below that on the inside of the U-crossbar arranged hook a guide for that in particular locking element adjustable at right angles to this U-crossbar is arranged, which extends into the perforation below the hook continues, i.e. also breaks through the U-crosspiece of the supporting body or prevails or in a corresponding perforation continues the U crossbar.

A threaded sleeve can be provided as a guide for the locking element be and the locking element can be bolt-shaped and an external thread matching the internal thread of the threaded sleeve have, whereby the locking element transverse to the U-cross bar through this is adjustable through. With the help of the thread then results Easy fixing, especially with self-locking threads the locking element in its locking or locking position.

But it would also be possible that a sleeve is provided as a guide is in which a particularly bolt-shaped locking element against the force of a spring is retractable out of the locked position is and that the spring-loaded locking element from the spring in the Use position is slidable below the hook. There would be then an automatically remaining in the locked position Arrangement in which to release the locking element against spring force is withdrawn.

Particularly favorable for simple actuation when moving the locking element and in particular when inserting the locking element even if the hook is not relative to the breakthrough is fully raised, it is when the locking element on his end engaging in the stiffening profile in the use position has a conical transition to its blocking section and if in the use position in the breakthrough of the stiffening profile engaging locking portion of the locking element preferably thread-free and smooth and especially with a circular cross-section is trained. Thus, the conical transition can be started with its smaller size under the hook and this gradually push it further into the use position move. The smooth and thread-free locking section can both with straight as well as with rotating movement when screwing in get well into the locked position and out of it again be withdrawn.

It can be advantageous if the projection or handle in particular also serves as a stop against the guide and one stop face, opening or Coupling for an operating rod with counter stop, with hook or with counter coupling. This makes it easier to use Hand or with the help of an aid, without a special tool such as a wrench or the like is needed. Thereby also a "remote control" of the locking element enables, for example, using a formwork panel the hitch according to the invention in a greater height was discontinued and now the locking element from the ground or out to be solved at a lower level. The user can then with an appropriate rod on the handle or projection attack and move the locking element out of the locked position. Becomes then the lifting force by slightly lowering the hoist lifted, the hook can practically automatically come out of the breakthrough swing out or with the operating rod already mentioned withdrawn, so that then the formwork element or Formwork panel is released at high altitude without one Operator must go directly to this height.

For the inclusion of the locking section in the guide in the open position it is useful if the support body directly adjacent area of the threaded sleeve serving as a guide compared to the internal thread spaced from the support body has an enlarged inner diameter.

For a favorable introduction of the weight forces, it is advantageous if the bracket on the support body in the area of the transition from the U crosspiece to the U leg, in particular on the outside, fastened or welded, preferably eye-shaped and the upper area of the support body in the use position overlaps on the outside over a length range and this Length range of the mutual contact of the bracket and Support body is welded in particular.

With the arrangement of the U-legs of the bracket at the transition the U-crosspiece to the U-legs also becomes the force attack of the hoist at a location that is favorable for this symmetry enables.

Although the bracket could also over the entire length or Height range of the support body run, however, usually a section in the upper area of the support body is sufficient to Correspondingly long weld seam for adequate fastening to achieve.

The bracket can be approximately U-shaped, with its U-legs are attached to the support body and opposite parallel to each other in the carrying direction or towards each other upwards continue and are bent such that they are above of the supporting body connecting U-cross bar - which is also preferred after can be curved above - approximately above that on the front side the protrusions located in the position of use engage in the bead of the edge web, is arranged. By this position of the bracket becomes the real one Attachment point largely shifted over the projections, so that also a largely automatic determination of the whole Hitch results under load because the corresponding Lever arms and the weight force the U-crossbar of the supporting body move and press against the stiffening profile.

Especially when combining one or more of the above Features and measures, especially when combined of the hook with locking element and the one engaging in the bead Projections results in a hitch that supports the weight can accommodate a corresponding panel very well fixed quickly and easily to a formwork panel, but again can be solved and still a high security against enables unwanted loosening. It is advantageous the reaction forces of the attached weight on two or even three places on the formwork panel and not just at an opening or edge web transferred when the projections at the same time the edge web and the hook on the stiffening profile.

Fig.1

eine Ansicht einer Schaltafel mit Randstegen undrechtwinklig dazu verlaufenden Aussteifungsprofilen, wobei an zwei zueinander beabstandeten parallelen Aussteifungsprofilen im Bereich des oberen horizontalen Randsteges je eine erfindungsgemäße Anhängevorrichtung angreift, an deren Haltebügeln zu einem Seilgehänge gehörende Zugseile angreifen,

Fig.2

eine der Fig.1 entsprechende Darstellung, bei welcher die Schaltafel um 90° verdreht aufgehängt ist und die Anhängevorrichtungen an zwei kurzen Aussteifungsprofilen angreifen, die zwischen einem Randsteg und einem parallel dazu verlaufenden, in dieser Gebrauchsstellung horizontalen Aussteifungsprofil angeordnet sind,

Fig.3

in vergrößertem Maßstab eine Ansicht einer erfindungsgemäßen Anhängevorrichtung in der gleichen Blickrichtung wie in den Figuren 1 und 2,

Fig.4

einen Längsschnitt der Anhängevorrichtung gemäß der Linie IV-IV in Fig.3,

Fig.5

eine Seitenansicht der Anhängevorrichtung während ihres Einsetzens in die Gebrauchsstellung, das heißt zusammen mit dem Randbereich der Schaltafel kurz vor der endgültigen Verbindung damit oder kurz nach dem Lösen davon,

Fig.6

eine der Fig.5 entsprechende Darstellung der Anhängevorrichtung in Gebrauchsstellung, in welcher ein Haken in einen Durchbruch eines Aussteifungsprofiles eingreift und in dieser Position durch ein Sperrelement gegen Lösen gesichert ist, wobei gleichzeitig Vorsprünge des Tragkörpers der Anhängevorrichtung an der Sicke des Randsteges angreifen,

Fig.7

einen Querschnitt der Anhängevorrichtung in Gebrauchsstellung gemäß der Linie VII-VII in Fig.6 sowie

Fig.8

einen Längsschnitt der Anhängevorrichtung in der in Fig.6 dargestellten Gebrauchsstellung mit noch nicht endgültig in Sperrstellung befindlichem Sperrelement.

An exemplary embodiment of the invention is described in more detail below with the aid of the features essential to the invention. It shows in a partially schematic representation:

Fig. 1

4 shows a view of a formwork panel with edge webs and stiffening profiles running at right angles thereto, wherein a towing device according to the invention acts on two mutually spaced parallel stiffening profiles in the region of the upper horizontal edge web, on the holding brackets of which pulling cables belonging to a cable suspension act,

Fig. 2

1 shows a representation corresponding to FIG. 1, in which the formwork panel is suspended rotated by 90 ° and the hitching devices engage on two short stiffening profiles which are arranged between an edge web and a horizontal stiffening profile running parallel to it in this position of use,

Fig. 3

on an enlarged scale a view of a hitch according to the invention in the same direction as in Figures 1 and 2,

Fig. 4

3 shows a longitudinal section of the towing device according to line IV-IV in FIG. 3,

Fig. 5

a side view of the hitch during its insertion in the position of use, that is, together with the edge region of the formwork panel shortly before the final connection therewith or shortly after it has been released,

Fig. 6

5 shows a representation of the towing device in the use position, in which a hook engages in an opening in a stiffening profile and is secured in this position by a locking element against loosening, with projections of the supporting body of the towing device acting on the bead of the edge web at the same time,

Fig. 7

a cross section of the hitch in the use position along the line VII-VII in Figure 6 and

Fig. 8

a longitudinal section of the hitch in the use position shown in Figure 6 with the locking element not yet finally in the locking position.

A hitch designated as a whole is used according to Figures 1 and 2 for attaching at least one formwork panel 2 to a Hoist, in Figures 1 and 2 only pull ropes or chains 3 are indicated, for example by the hitch 1 lead to a crane hook or the like. It is in figure 1 and 2 show that at the same time two such hitching devices 1 can attack on such a panel 2, wherein it is a formwork panel 2 which, according to FIGS up to 7 at right angles to the surface to be concreted and the formlining 4 trending, with beads 5 or channels for the attack of not fastening clips shown in more detail when mutual Connect such formwork panels 2 provided edge webs 6 and also 6 stiffening profiles running at right angles to these edge webs 7 has. According to FIGS. 7 and 8, these stiffening profiles 7 have Bars arranged parallel to the formlining 4 at a distance from this 8 and openings 9 in these webs 8. The hitch 1 has an approximately eyelet-shaped attack or holding bracket 10 which the pull ropes 3 or directly hook or the like can attack and also has one with this bracket 10 connected support body 11, explained in more detail below, the for releasably connecting the hitch 1 with the Formwork panel 2 and for introducing the weight forces.

From Figures 3 to 8 you can see that this support body 11 one in the use position directed upwards and upwards open hook 12 with a hook base 13 and this one opposite upstanding hook projection 14 for hanging in one Breakthrough 9 of a stiffening profile 7 has. In Figure 8 is the hook 12 shown in this suspended position, the means he engages in an opening 9 of the web 8 of the stiffening profile 7 and reaches behind with his Hook projection 14 the upper edge 15 of this opening 9th

Below the hook 12, the support body 11 has a perforation 16, which is immediately limited by the hook 12 at the top. Here is a relative to the support body 11 according to Figures 4 to 8 for this perforation 16 adjustable locking element 17 is provided, which in the position of use according to Figures 6 to 8 and also in the representation according to Figure 4, the use position in as far as the hook 12 corresponds at least in the opening 9 engages under the stiffening profile 7, in the release position according to FIG 5 but opposite the underside of the hook 12 and thus also that Breakthrough 9 is withdrawn.

The overall dimension of the hook 12 with the hook projection 14 is same or smaller than the dimension of the opening 9 in the web 8 of the stiffening profile 7 in the vertical direction. Thus, the hook 12 can easily according to the arrow Pf1 in Figure 5 are introduced through the breakthrough 9.

The overall dimension of the locking element 17 and the hook 12 minus that of the hook projection 14 in the carrying direction equal to or less than the corresponding dimension of the opening 9 in the web 8 of the stiffening profile 7, that is, the vertical Dimension of the hook in the area of the hook base 13 and the corresponding dimensions of the locking element 17 fit straight together in the opening 9. So is the blocking element 17th housed together with the hook 12 in the opening 9, the hook projection 14 projects beyond the upper edge 15 of the opening 9, is therefore positively fixed in the horizontal direction, can no longer unintentionally come loose.

In this position, this fills up below the hook 12 its side facing away from its hook opening transversely to the suspension or Carrier direction and adjustable transversely to the support body 11 Locking element 17 together with the in the use position in the Opening 9 of the stiffening profile 7 engaging hook 12 this breakthrough 9 in the loading or carrying direction, ie in vertical direction opposite the arrow Pf2 of Figure 5. Each depending on the dimensions, it can even be within the Breakthrough 9 can cause jamming.

The length of the hook projection 14 relative to the hook base 13 can be approximately equal to the one running in this direction Dimension of the locking element 17. In this case, the Hook with its hook projection 14 straight through the opening 9 through and then protrudes with its hook projection 14 the upper edge 15 approximately by the corresponding dimension, for Example the diameter of the locking element 17th

Above its hook 12, the support body 11 has two in the bead 5 of the edge profile or web 6 insertable and in the embodiment projections 18 matching the bead cross section, which engage in the bead 5 when the hook projection 14 the upper edge 15 of the opening 9 of the stiffening profile 7 at least partially behind or overlaps. In this position then the hook 12 is also adjusted from the inside Underlocked element 17, so that both the projections 18th and attack the hook 12 on the formwork panel 2 and with it a detachable but fixed by the locking element 17 connection produce.

The distance of the hook base 13 from the projection 18 is there equal to or a game greater than the height distance of the upper one Edge 15 of the opening 9 from the bead 5. This is a simultaneous loading in the area of the projections 18 and the hook 12 reached at the hook base 13. Is the distance between Hook base 13 and projection 18 in the direction of arrow Pf2 somewhat greater than the corresponding height distance of the upper edge 15 from the bead 5, comes when attaching the hitch 1 on the formwork panel 2 initially only between the projections 18 and the bead 5 creates a force effect. But this leads to that the edge web 6 yields slightly elastically, so that then the hook 12 comes into play.

Especially in Figure 7 it can be seen that the support body 11 a has about a U-shaped cross section and in the use position respective stiffening profile 7 of the formwork panel 2 on the outside encompasses, the U-transverse web 19 of the support body 11 in this Use position on the stiffening profile 7 on the outside in Area of the breakthrough 9 is present and approximately parallel to the the breakthrough 9 web 8 of this stiffening profile 7 runs. The two U-legs 20 of this U-shaped in cross section Carrier body 11 are approximately with their cross sections to the Formwork skin 4 directed and have according to Figure 4 to 6 on her one in each case in the use position facing upwards of the aforementioned projections 18 for engaging in the bead 5 of the edge web 6, which in the exemplary embodiment has a deep-drawing profile is, but could also be formed from flat material or even could be a hollow profile.

At the same time, the U-legs 20 have an approximately triangular shape, by going from the bottom up to the projections 18 in their Width b in particular is increasing steadily, which remains the same good force application leads to weight savings.

For the safest possible actuation and function of the locking element 17 is on the outside of the U-legs 20 facing away from the U-transverse web 19 of the support body 11 in the area below the arranged on the inside of the U-crossbar 19 and it according to Figure 4 also somewhat penetrating hook 12 with a whole 21 designated guide for the rectangular in the embodiment arranged to this U-crosspiece 19 adjustable locking element 17, which continues into the perforation below the hook 12, the is called the bottom of the hook 12 in this area upper limit of the guide for the locking element 17th

There is a guide 21 on the outside on the U crosspiece 19 Threaded sleeve provided and the locking element 17 is essentially bolt-shaped. It has one to the internal thread 22 of the threaded sleeve serving as a guide 21 suitable external thread 23, so that the locking element 17 by a screwing movement in Axial direction is adjustable transversely to the U-crosspiece 19. About that this also allows a relatively coarse thread according to FIG tight tightening in the locked position due to the self-locking this thread is also retained or by an additional Screw lock could also be specified.

Especially in Figure 8 you can see that the in the use position engaging in the opening 9 of the stiffening profile 7 Locking section 17a of the locking element 17 thread-free and smooth is and preferably has a circular cross section. So can this locking section 17a when screwing in even in the case of a Touch contact within the opening 9 relatively easily both rotated and moved axially forward.

The corresponding rotary movement for the axial adjustment in Direction of arrow Pf1 is in Figure 5 by the arcuate Arrow Pf3 indicated.

In Figure 8 it can also be seen that the locking element 17 on his in the use position in the stiffening profile 7 engaging end has a conical transition 17b to its blocking section 17a, what the first insertion and intervention in the breakthrough 9 relieved below the hook 12.

The locking element 17 has a according to Figures 6 and 7 also as Stop against the guide 21 serving, transverse to his Direction of projection or handle 24 for the axial adjustment and screwing in closed or open position, thus in the direction of arrow Pf1 in FIG. 5 or contrary to that. During this handle 24 in the illustrations 6 and 7, in which the entire crane hitch 1 is closed on the outer end face of the guide 21 serving threaded sleeve, he has according to the representations Figures 4, 5 and 8 a distance from it, this distance in the Figures 4 and 8 is relatively small, so the locking position already is almost reached, while in Figure 5 it is large because of in this representation, the locking element 17 is still completely in Open position. By turning in the direction of the arrow Pf3 is the handle 24 and the locking element 17 on the Intermediate positions according to Figures 4 and 8 in the locked position according to Figure 6 and 7 axially adjusted.

It can be seen in Figure 8 that the support body 11 and the U-crosspiece 19 immediately adjacent area as a guide 21 serving threaded sleeve one compared to that of the support body 11 spaced internal thread 22 enlarged inner diameter except for the blocking section 17a in the open position retracted locking body 17 has. The locking portion 17a can So compared to the core diameter of the external thread 23 of the Locking element 17 and even against the external thread 23 itself to survive something.

For connecting the hitch 1 to a formwork panel 2 5 according to FIG. 5 with the blocking element 17 withdrawn the hook 12 through the opening 9 of the stiffening profile 7 inserted, which is a movement of the entire hitch 1 corresponds approximately to in the direction of the arrow Pf1, but it does compared to their position of use in a deeper or lowered position. Has the hook projection 14 the Breakthrough 9 left inside, the hitch 1 raised according to arrow Pf2, whereby the hook base 13 approximates the upper edge 15 of the opening 9 and the hook projection 14 engages behind this edge. At the same time, the Projections 18 on the end faces of the U-legs 20 of the support body 11 in the beads 5. By turning the locking element 17 according to The arrow Pf3 becomes axial due to the threaded connection Direction again adjusted in the direction of arrow Pf1 until Locking section 17a the hook 12 within the opening 9th engages under and thus prevents the hook 12 and thus the entire hitch 1 itself from this position of use 6 and 7 can solve again.

So loosening the entire hitch sets that Screw back the locking element 17 against the direction of rotation of arrow Pf3 ahead, followed by those for fastening mentioned movements and directions of movement in reverse Order and reverse direction to the hitch 1 from the panel 2 again.

The eyelet-shaped retaining bracket 10 has already been mentioned, on which the hoist directly or - via tension elements 3 such as ropes or chains - Can be connected indirectly with a hoist. In the embodiment is this bracket 10 on the support body 11th in the area of the transition from the U crosspiece 19 to the U legs 20 attached on the outside and welded, which is special clearly recognizable in Figure 7. According to Figures 3 to 6 and Figure 8 overlaps the bracket 10 in the use position upper area of the support body 11 on the outside over a certain Length or height range, but not up to the hook 12 leads. This length range of mutual contact from Retaining bracket 10 and support body 11 is in the embodiment welded.

From Figures 1 to 3 also shows that the bracket 10 is approximately U-shaped and from Figures 4 to 6 and 8 results that his U-legs 25 on the support body 11 are each attached and opposite in the carrying direction initially continue parallel upwards, but above the attachment point at an obtuse angle Are bent towards the formlining 4 that they above of the supporting body connecting U-cross bar 26, which also is slightly curved, approximately above that on the front of the Carrying body 11 located projections 18 in the use position engage in the bead 5 of the edge web 6 or the edge profile, is arranged. Due to the different distances of the Projections 18 on the one hand and the hook 12 on the other hand from the Formwork skin 4 results from corresponding different Lever arms, under which the reaction forces to the weight force the hitch 1 take effect. This leads to the U-crosspiece 19 of the support body 11 of the hitch 1 under load in the direction of the stiffening profile 7 is pressed, so that an additional security against unwanted unhinging movements even under difficult conditions or in addition to the weight, such as Wind loads, shock loads or the like is achieved.

In Figure 3 you can still see that the projection or handle 24 of the Locking element 17 an opening near its free end 27, on which attacked with a hook or the like that could be on a pole if the Actuation of the hitch, for example to release it to be performed by an operator who is is at a greater distance from the hitch 1, for example if the hitch 1 is at a greater height located as the operator.

The hitch 1 is used to connect at least one Formwork panel 2 with a hoist, on the one hand with beads 5 or gutters provided with edge webs 6 or edge profiles and on the other hand on a stiffening profile arranged transversely to it 7 can be attached. It engages the stiffening profile 7 thereby with a support body 11 and a hook located thereon which penetrates a breakthrough in the stiffening profile. Of the This breakthrough allows the hook to be inserted and raised and is in this position by one also in this Breakthrough 9 engaging locking element 17 secured.

Claims (12)

1. Suspension device (1) and a formwork board (2), the suspension device (1) serving to suspend at least one formwork board (2) from a hoist and having a carrier (11), the formwork board (2) having edge strips (6) or edge profiles which extend at right angles to the surface which is to be concreted and which are provided with beads (5) or channels for the engagement of fixing brackets, said formwork board (2) also having reinforcing profiles (7) extending at right angles thereto, these reinforcing profiles (7) having webs (8) parallel to the formwork skin (4) and spaced therefrom and openings (9) in these webs (8), the carrier (11) having a hook (12) which is directed upwardly in the position of use and is open at the top, having a hook base (13) and a hook projection (14) protruding upwards relative thereto for suspending from an opening (9) in a reinforcing profile (7), and in the carrier (11) there is provided a hole (16) and a locking member (17) which is adjustable relative to said hole in the carrier (11), this locking member (17) being retracted relative to the hook (12) in the released position, the overall dimensions of the hook (12) with the hook projection (14) being equal to or less than the dimensions of the opening (9) in the web (8) of the reinforcing profile (7) in the vertical or diagonal direction and the overall dimensions of the locking member (17) and the hook (12), minus the dimensions of the hook projection (14), being equal to or less than the corresponding dimensions of the opening (9) in the web (8) of the reinforcing profile (7), characterised in that the locking member (17) is provided below the hook (12) and in the position of use engages underneath the hook (12) at least in the opening (9) in the reinforcing profile (7), the suspension device (1) has an engaging or retaining clip (10) which is attached to the carrier (11) and the carrier (11) has, above its hook (12), at least one projection (18) which can be inserted in a bead (5) of the edge profile and which engages in the bead (5) when the hook projection (14) engages at least partially behind the upper edge (15) of the opening (9) in the reinforcing profile (7), and in this position the locking member (17) which has moved inwards engages under the hook (12).
2. Suspension device according to claim 1, characterised in that the length of the hook projection (14) relative to the hook base (13) is approximately the same as the dimension of the locking member (17) extending in this direction and the locking member (17) substantially fills the opening (9) in the reinforcing profile (7), in particular, at least in the direction of loading or carrying, and/or is preferably jammed in the opening (9), by means of the hook (12) which engages in this opening (9) in the position of use.
3. Suspension device according to claim 1 or 2, characterised in that the spacing of the hook base (13) from the projection (18) is equal to or larger, by a degree of play, than the vertical spacing of the upper edge (15) of the opening (9) from the bead (5).
4. Suspension device according to one of claims 1 to 3, characterised in that the carrier (11) has a substantially U-shaped cross sectional profile and in the position of use engages around the outside of a reinforcing profile (7) of the formwork board (2), the crossbar (19) of the U-shaped carrier (11) abutting, in the position of use, on the outside of the reinforcing profile (7) in the region of the opening (9) therein, and the two arms (20) of the U have, in particular, on their end face which is directed upwards in the position of use, a projection (18) for engaging in the bead (5) of the edge strip (6).
5. Suspension device according to claim 4, characterised in that, on the outside of the crossbar (19) of the U-shaped carrier (11) remote from the arms (20) thereof, in the region below the hook (12) mounted on the inside of the crossbar (19), there is a guide (21) for the locking member (17) which is movable in particular at right angles to this crossbar (19), said guide (21) continuing into the hole below the hook (12).
6. Suspension device according to claim 5, characterised in that a threaded sleeve is provided as the guide (21) for the locking member (17) and in that the locking member is bolt-shaped and has an external thread (23) which fits the internal thread (22) of the threaded sleeve, by means of which the locking member (17) is movable at right angles to the crossbar (19) of the U, through said crossbar, or a sleeve is provided as the guide wherein a locking member, particularly in the form of a bolt, is mounted so as to be retractable from the locking position counter to the force of a spring nd the spring-loaded locking member can be pushed by the spring into the position of use below the hook.
7. Suspension device according to one of claims 1 to 6, characterised in that the locking member (17) has a conical transition (17b) to its locking portion (17a) on its end which engages in the reinforcing profile (7) in the position of use, and in that the locking portion (17a) of the locking member (17) which engages in the opening (9) in the reinforcing profile (7) in the position of use is preferably unthreaded and smooth and, in particular, has a circular cross section.
8. Suspension device according to one of claims 1 to 7, wherein the locking member (17) has a projection or handle (24) projecting at right angles to its direction of movement for axial adjustment or screwing into the closed or open position, characterised in that the projection or handle (24) also serves in particular as a stop for the guide (21) and has a stop surface, opening (27) or coupling close to its free end for an actuating rod with a counter-stop, with a hook or with a counter-coupling.
9. Suspension device according to one of claims 1 to 8, characterised in that the region of the threaded sleeve acting as a guide (21) immediately adjacent to the carrier (11) has an internal diameter which is larger than the internal thread (22) at a spacing from the carrier (11) in order to accommodate the locking portion (17a) of the locking member (17) which is retracted in the open position.
10. Suspension device according to one of claims 1 to 9, characterised in that the retaining clip (10) is fixed or welded to the carrier (11), particularly on the outside, in the region of the transition from the crossbar (19) of the U to the arm (20) thereof, preferably in the form of an eyelet, and engages on the outside over the part of the carrier (11) which is uppermost in the position of use over a longitudinal area, and this longitudinal area of mutual contact between the retaining clip (10) and carrier (11) is welded, in particular.
11. Suspension device according to one of claims 1 to 10, characterised in that the retaining clip (10) is approximately U-shaped, its arms (25) being fixed to the carrier (11) and extending further upwards parallel to one another or over one another in the direction of support and being bent so that the crossbar (26) of the U connecting them above the carrier (11) is arranged somewhat above the projections (18) located on the end face of the carrier (11) which engage in the bead (5) of the edge strip (6) in the position of use.
12. Suspension device according to one of the preceding claims, characterised in that the arms (20) of the U-shaped carrier (11) increase steadily in width (b) from the bottom upwards to the projections (18), in particular, and are preferably substantially triangular in shape.

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