EP0369153B1 - Device for connecting additional elements to forming panels - Google Patents

Abstract

PCT No. PCT/DE89/00675 Sec. 371 Date May 13, 1991 Sec. 102(e) Date May 13, 1991 PCT Filed Oct. 23, 1989 PCT Pub. No. WO90/05226 PCT Pub. Date May 17, 1990.A device (1) serves for connecting accessory parts (2) to formwork panels, compensating members or suchlike formwork members having stiffening webs or stiffening profiles (3) on their side averted form the forming surface. The device (1) has an essentially U-shaped cross section, the U-arms (4) having fastening locations (5), preferably bores, for the accessory parts (2) such as booms, adjustable props, platform brackets or the like, and in the position of use the U-crosspiece (6) butting and being drawn fast against a stiffening profile (3) and above all against a cross web (3b) provided on this profile (3). At least one of the U-arms (4), preferably both U-arms (4), has an extension (7) passing over part of its length and beyond the U-crosspiece (6) on that side of the U-arms which faces the forming surface in the position of use, the extension being provided as protection against torsion and being adapted to be placed against the longitudinal side face (3a) of the stiffening profile ( 3) and against the transition from the rearward web (3b) to the longitudinal side face (3a). The U-crosspiece (6) of the device (1) has at least one recess or hole (8)-possibly even one open at the edge-for a fastening member to engage, preferably for the shank (9a) of a fastening member (9) to pass through. It is thereby possible for the device (1) to be anchored-in a torsion-proof position and in two orientations rotationally staggered through 90 DEG -to a stiffening profile (3), so that the forces and moments encountered can be transferred well (FIG. 1).

Description

The invention relates to a device for connecting accessories with formwork panels, compensating elements and similar formwork elements which have stiffening webs or profiles on their side facing away from the formlining, the device having an essentially U-shaped cross section and the U-legs fastening points for the accessories like straps or the like have and the U-crossbar is in use against a stiffening profile of the formwork.

From B 33 33 619 a formwork for circular buildings is known, in which a locking chain with adjustable bars is provided on the supports supporting the formlining, these locking bars of the locking chain each engaging via connecting pieces on the supports of the formwork panels and an approximately U -shaped cross-section. These connecting pieces have in their U-legs facing away from the formwork the fastening points for the individual bolts.

For the attack on the stiffening girders or profiles, however, these connecting pieces require further coupling parts, which in turn are approximately U-shaped and the stiffening girders reach around. Above all, attachment of any accessories such as supports, brackets or the like directed against the floor is not possible with these connecting pieces because they remain firmly connected to the individual bolts.

From EP-A-0 049 096 a scaffold for aluminum profiles is known, in which a connecting device for connecting horizontal and / or oblique struts to vertical supports has a substantially U-shaped cross-section and its U-leg attachment points for reaching around and connecting to the have vertical supports, which also have perforated extensions for the fork-shaped gripping of the ends of the struts, which in turn can be penetrated by means of cross bolts. An adaptation to different accessories to be connected to formwork and a consideration of either vertically or horizontally oriented stiffening webs of formwork panels is therefore not possible.

The invention has for its object to provide a device of the type mentioned, with which any accessories such as straps, consoles, supports and. Like. Can be quickly and easily attached to formwork panels, the orientation of the stiffening webs or profiles should be either vertical or horizontal.

The solution to this apparently contradictory task in a device of the type mentioned at the outset is that the two U-legs on the side facing the formwork skin in the use position have extensions over part of their length that extend beyond the U-crosspiece and are provided as a means of preventing rotation and on the longitudinal side surface of the stiffening profile or the edge or bending at the transition from a rear web to the longitudinal side surface of this stiffening profile can be applied that the U-cross web of the device has at least one point of attack, recess or perforation for the attack or the passage of a shaft of a fastener, which fastener has a radial at least on one side has a head or the like protruding from this shaft and can be inserted into it from the side facing away from the formlining by a breakthrough of the stiffening profile and anchored or clamped to it with its head and a counter-stop at the end facing away from its head or the like Anchoring to the U-shaped device, and that the two continuations shortened with respect to the total length of the U-legs form a shoulder with the U-cross bar and are located outside of the neighboring area of the perforations.

In an apparently contradictory manner, parts of the U-legs of the device with a U-shaped cross section protrude beyond the U-crosspiece, but thereby allow the coupling to be secured against rotation with the aid of the fastening element on the stiffening profile, so that it can be easily and without additional measures for such an anti-rotation device any part in turn can be attached to this device. This anti-rotation device is particularly effective due to the two continuations of the U-legs and allows high forces and moments to be introduced into the bracing members.

Since the continuations run only over part of the length of the U-legs and form a shoulder, the device can also be rotated by 90 °, that is to say fixed with U-legs running approximately at right angles to the longitudinal extension of the stiffening profiles that these stiffening profiles can run both vertically and horizontally, so that the device according to the invention can be used as desired in those formwork panels that should also be usable in a position rotated by 90 ° or have intersecting stiffening profiles, but in turn can always maintain their correct, constant orientation. In one assembly position, the two continuations of the U-legs can overlap the long sides of the stiffening profile and thus create a safe and good anti-rotation device in both conceivable directions of rotation, whereby high forces and moments can be transmitted. In contrast, in a position rotated by 90 °, the shoulders of the shortened U-legs can both be placed on a common long side of a stiffening profile, which in turn provides protection against rotation and the possibility of transmitting moments, the distance between the two continuations from one another and from that Fastening element results in an effective and non-rotatable anchoring of the device on the stiffening profile, because the device is thereby fixed or supported at at least three points relative to the stiffening profile.

From US-A-3 330 583 a device for connecting accessories to profiles is known, but it is about the coupling of approximately horizontal tube supports to vertical supports for the construction of platforms, shelves or scaffolding. The approximately U-shaped device is oriented one above the other with its two U-legs and is placed on the vertical support with the U-cross bar. It also has an automatic lock and an approximately U-shaped anti-rotation lock, which is arranged at the height of the lower U-leg, but it is not possible to attach it to a support that is rotated by 90 °, i.e. horizontally, without rotating accordingly on this device .

This would be unsuitable for supports or the like emerging obliquely from the device.

It is expedient in the device according to the invention if the fastening element has a hammer head which can be inserted in an orientation position through an elongated hole in the crossbar of the stiffening profile and - e.g. by 90 ° - rotates behind the edges of the slot. This results in a particularly quick and effective coupling between the device and a stiffening profile provided with corresponding elongated perforations.

For the anti-rotation device with the help of the heel on the shortened U-legs, it is favorable if the heel is approximately step-shaped.

The distance between the U-crosspiece and the continuation of the U-legs can be placed against the longitudinal side of the stiffening profile as an anti-rotation device and can be located at a distance from the perforation for the fastening element that the elongated hole or the like. Breakthrough in the stiffening profile from the beginning of the longitudinal web of this profile. This automatically results in the fact that in both fastening positions rotated by 90 ° relative to one another, the anti-rotation devices of the device come into effect, since they bear against the longitudinal side of the stiffening profile when fastened with the fastening element.

The better the device is pressed against a stiffening profile, the more effective the anti-rotation device is. For this purpose, it can be expedient if the counter-stop acting on the U-crosspiece of the device can be braced with the fastening element. This counter-stop can releasably engage the shaft of the fastening element. In this way, it can also be retrofitted when the fastening element and its head are inserted and twisted through the opening in the stiffening profile.

As a counter-stop at the end of the fastening element facing away from the head, a transverse slot can be provided through its shaft and a wedge which can be inserted therein, the transverse slot preferably extending into the perforation of the crossbar of the device in the use position. As a result, a concrete solution is created in a simple manner for the counter stop to be braced with respect to this U-transverse web of the device. The wedge only needs to be driven in sufficiently deep to exert a corresponding tensile force on the shaft and thus also on the head of the fastening element and to press the U-transverse web of the device against that of the stiffening profile.

In order to keep the length of the fastening element and thus the overall dimension of the device as small as possible, it is advantageous if, in the position of use, the transverse slot in the shaft of the fastening element is arranged between the U-legs of the device on the side of the U-crosspiece facing away from the formlining and the U-legs of the device have openings for the anchoring wedge at the height of the transverse slot. This can thus be inserted through these openings in order to reach its position of use in the transverse slot of the shaft of the fastening element.

Another useful embodiment of the device can consist in that the cross section of the transverse slot for the wedge on the shaft of the fastening element opposite its hammer head - vzw. is rotated by 45 ° and the openings on the U-legs of the device have such a staggered arrangement and / or lateral expansion that the wedge runs obliquely from one leg through the anchoring slot of the fastening element to the other opening. Thus, the wedge can be driven in with an oblique seat in such a way that it is held in its position of use by gravity. This not only makes assembly easier, but also counteracts accidental loosening.

A further advantageous embodiment can consist in that the openings for the wedge on the U-legs of the device have such a lateral expansion or that so many openings are provided side by side that the wedge is inclined from both sides to the surface of the U-legs and can be used at least in two positions preferably offset by 90 °. This makes it possible to take into account the possibility of being able to attach the device to two stiffening profiles in two 90 ° different positions, depending on whether these stiffening profiles run approximately vertically or approximately horizontally. In each of these cases it can thus be achieved that the wedge runs obliquely from top to bottom and not approximately horizontally or even from bottom to top.

The attachment points for the detachable connection of accessories can be formed as recesses, preferably holes, and arranged on the U-legs of the device at a distance from the openings for the anchoring wedge. It should be noted at this point, however, that a nut as a counterpart may also be threaded on the shaft stop could be provided if the U-legs should not offer enough space on the one hand for the openings for the wedge and on the other hand for the attachment points.

In this case, a fastening point can be provided on each U-leg and both fastening points can preferably have the same shape and the same position, in particular as bores or the like for a push-through bolt. be trained. This can then pass through a part of an accessory which engages between the two U-legs and be anchored to the U-legs on both sides of this detected part of the accessory.

A particularly simple and good securing of the fastening element of the device is obtained if the surfaces of the head of the connecting bolt facing the inside of the U-crosspiece of the stiffening profile run obliquely outwards from the shaft in accordance with a sikken- or groove-shaped shaping of the U-crosspiece of the stiffening profile. At the same time, this increases the rigidity of the stiffening profile, so that the attachment of accessories via the device according to the invention is made all the better.

It is expedient if the continuations of the U-legs consist of one piece with them. The U-crossbar of the device can then be inserted, in particular welded, between the U-legs and their continuations, and its surface in the use position on the outer web of the stiffening profile can expediently be approximately flush with the discontinued area of the U-legs. This results in a rigid construction, in particular of the U-shaped part of the device according to the invention.

It should also be mentioned that the perforation for the fastener is expediently a bore because it is particularly easy to produce and also allows a correspondingly simple round shaft of the fastener. However, this bolt-shaped fastening element between its shaft, which is preferably round in cross section, and the roof-shaped inclined surfaces on the underside of its head can have a square area as a means of preventing rotation for engaging in the recess of the crosspiece of the stiffening profile. This makes it easier for the transverse slot for the anchoring wedge to remain in its position after the head of the fastening element has been inserted and fixed, and the oblique insertion of the wedge from the side is thus facilitated.

To save weight, the U-legs of the device can be chamfered between their end faces and their edges facing away from the crosspiece outside the openings for the anchoring wedge and the fastening holes for the accessories.

Especially when combining one or more of the features and measures described above, there is a device with which any accessories can be attached to formwork elements that have corresponding stiffening webs and profiles, these accessories being straightening struts, walking brackets, climbing brackets, trestles, floor supports or straps can. The device allows its attachment in two positions, preferably rotated by 90 °, so that it can be oriented with its U-legs and the attachment points in each case as required by the attachment of the accessories, regardless of whether the stiffening profiles Formwork panels in turn are oriented vertically or horizontally. Also on slab formwork This device can be arranged in accordance with the stiffening profiles. This results in a functional and firm connection between the accessories and the formwork element in every fastening position, whereby not only forces but also moments can be transmitted due to the good anti-twist protection.

• Fig. 1 eine explosionsartige Darstellung der erfindungsgemäßen Vorrichtung vor ihrer Montage an einem horizontal orientierten Aussteifungsprofil einer vertikal stehenden Schaltafel und vor der Anbringung eines Zubehörteiles, in diesem Falle einer Richtstrebe daran,
• Fig. 2 eine Rück-Ansicht der Vorrichtung in montiertem Zustand, wobei das horizontal verlaufende Aussteifungsprofil und das Zubehörteil der besseren Deutlichkeit wegen weggelassen sind, aber ein Langloch in dem Aussteifungsprofil angedeutet ist,
• Fig. 3 einen Schmitt durch den U-Quersteg der Vorrichtung sowie den dieser Vorrichtung nahen Bereich eines Aussteifungsprofiles sowie eine Ansicht auf einen U-Schenkel und dessen als Verdrehsicherung nur über einen Teil der Länge verlaufenden Fortsetzung,
• Fig. 4 eine Ansicht der gesamten Vorrichtung in einer Orientierung für den Angriff an einem vertikal verlaufenden Aussteifungsträger oder -profil und
• Fig. 5 eine Draufsicht der Vorrichtung in einer Montagestellung an einem vertikal verlaufenden Aussteifungsprofil bzw. in einer Lage, bei welcher die beiden über einen Teil der Länge der U-Schenkel der Vorrichtung verlaufenden Fortsetzungen die Längs-Seitenflächen des Aussteifungsprofiles als Verdrehsicherung übergreifen.

The invention is described in greater detail below with its details that are essential to it, using the drawing in an exemplary embodiment. It shows in a partially schematic representation:

• 1 is an exploded view of the device according to the invention before it is mounted on a horizontally oriented stiffening profile of a vertical formwork panel and before the attachment of an accessory, in this case a strut thereon,
• 2 is a rear view of the device in the assembled state, the horizontal stiffening profile and the accessory being omitted for clarity, but an elongated hole in the stiffening profile is indicated,
• 3 shows a Schmitt through the U-crosspiece of the device and the area of a stiffening profile close to this device, as well as a view of a U-leg and its continuation which only extends over part of the length as a means of preventing rotation,
• Fig. 4 is a view of the entire device in an orientation for the attack on a vertically extending stiffening beam or profile and
• Fig. 5 is a plan view of the device in an assembly position on a vertically extending stiffening profile or in a position in which the two extensions extending over part of the length of the U-legs of the device overlap the longitudinal side surfaces of the stiffening profile as an anti-rotation device.

A device designated as a whole by 1 is used to connect accessories, for example a strut 2 with formwork panels, compensating elements or the like. Formwork elements, which are not shown in the drawings and have stiffening webs or stiffening profiles 3 on their side facing away from the formlining. These stiffening profiles 3 can be seen by way of example of the entire cross section in FIG. 1 and with regard to their area interacting with the device in FIGS. 3 and 5.

With reference to FIG. 1 and especially FIG. 5, it is clear that the device 1 has an essentially U-shaped cross section and its U legs 4 attachment points 5 for the accessories such as straps, struts 2 or the like. to have. 3 and 5 in the use position, the U-cross bar 6 rests on the stiffening profile 3 of the formwork.

When comparing FIGS. 2 and 3 on the one hand with FIGS. 4 and 5 on the other hand, it can be seen that provision has been made for the device 1 to act on the profile 3 in two different positions rotated relative to one another, or for the attachment to be carried out 90 ° differently oriented profiles 3 is possible in a corresponding position. At the same time, the device 1 is secured against rotation with respect to the profile 3, so that the forces and moments to be transmitted can be introduced well.

This is achieved in that the U-legs 4 on their side facing the formwork facing each have a continuation 7 over the U-transverse web 6 over part of their length, which continuations 7 are provided in both mounting positions as anti-rotation devices. 3 and 5, these extensions 7 can be applied in two different ways to the longitudinal side surface 3a of the stiffening profile 3 or to the edge or bend at the transition from a rear web 3b to the longitudinal side surface 3a of the stiffening profile 3.

Furthermore, the U-crosspiece 6 of the device 1 has a perforation 8 for the passage of a shaft 9a of a fastening element 9, which also has a head 9b projecting radially beyond this shaft 9a at least on one side, in the exemplary embodiment on two sides. With this head 9b ahead, this fastening element 9 can be inserted into it from the side facing away from the formwork skin through an opening 10 in the form of an elongated hole in the stiffening profile 3 and anchored to it with its head 9b in the manner shown in FIGS. At the end of the fastening element 9 facing away from the head 9b there is a counter-stop, to be described, for anchoring on the U-shaped device 1.

The fastening element 9 thus has an hammer head 9b for anchoring the device 1 to a stiffening profile 3, which can be inserted in the one orientation position through the elongated hole 10 of the transverse web 3b of the stiffening profile 3 and rotates in the exemplary embodiment by 90 °, engages behind the edges of this elongated hole 10, as it is indicated by dashed lines in FIG. 2.

When comparing FIGS. 3 to 5, it can be seen that both U-legs 4 of the device 1 have extensions 7 which extend beyond the U-crosspiece 6 and that they shorten in a corresponding manner and with a corresponding dimension compared to the total length of the U-legs 4 are and with the U-cross bar 6 form an approximately step-shaped shoulder 11 (see in particular Figs. 3 and 4) and are located outside the neighboring area of the perforation 8 for the fastening element 9.

5, the extensions 7 can attack with their own longitudinal extension directly on the longitudinal sides 3a of the stiffening profile 3 as a means of preventing rotation, if the U-legs 4 and the stiffening profiles 3 have a corresponding orientation direction, can be carried out in a mounting position rotated by 90 ° according to FIG Figures 1 to 3 of the paragraph 11 between the U-crosspiece 6 and continuation 7 or between the discontinued area of the U-leg 6 and continuation 7 of the U-leg serve as anti-rotation against the longitudinal side 3a of the stiffening profile 3, as is particularly clear in Fig .3 is recognizable. These shoulders 11 are located at a distance from the perforation 8 for the fastening element 9, which the elongated hole 10 in the stiffening profile 3 each has from its longitudinal webs 3a or the beginning thereof adjoining the crossbar 3b. It is thereby achieved that in the position in which the U-legs 4 of the device 1 are rotated by 90 ° with respect to the longitudinal extent of the profile 3, the shoulders 11 bring about the desired anti-rotation and come into contact with the profile 3.

The counter-stop for the fastening element 9 already mentioned should be able to be braced on the U-cross bar 6 of the device 1 with this or the fastening element in order to be able to press the device 1 firmly against the profile 3 and to make the anti-twist devices effective. It is advantageous if this counter stop detachably engages the shaft 9a of the fastening element. In the exemplary embodiment, it is provided that a transverse slot 9c through its shaft 9a is provided as a counterstop on the end of the fastening element 9 facing away from the head 9b and a wedge 12 which is suitable and can be used in this transverse slot 9c is provided as the actual counterstop, the transverse slot 9c in the position of use extends approximately into the perforation 8 of the crosspiece 6 of the device 1. When the wedge 12 is driven in, it is ensured that its narrow side facing the U-crosspiece 6 comes to rest against the U-crosspiece 6 and can exert the desired tensile force on the shaft 9a with the opposite narrow side.

So that the entire device 1 does not get too large dimensions and does not engage with too large lever arms on the profiles 3, in the exemplary embodiment the transverse slot 9c is arranged between the U-legs 4 and the U-legs 4 of the device 1 are at the height of the transverse slot 9c openings 13 for the anchoring wedge 12. These also extend so far against the formwork that the surface of the U crosspiece 6 facing away from the formwork skin lies in the clear inner contour area of these openings 13, so that the wedge 12 on this surface of the U crosspiece 6 comes to the plant.

However, it would also be conceivable that the wedge comes to rest against the corresponding boundaries of these openings 13, in particular if the slot 9c would not extend into the perforation 8 or even beyond.

It can be seen above all from FIG. 2 that the cross section of the transverse slot 9c for the wedge 12 on the shaft 9a of the fastening element 9 is opposite its hammer head 9b is arranged rotated about 45 ° and the openings 13 on the U-legs 4 have such a lateral extent that the wedge 12 extends obliquely from one leg 4 through the anchoring slot 9c to the other leg 4 and its opening 13. In both possible orientations of the device 1, it can thus be arranged obliquely from top to bottom, which above all facilitates assembly because a first insertion of the wedge is supported by gravity. Furthermore, the position of use is also supported and better secured by gravity and an unwanted falling out of a wedge 12 is avoided. In addition, a locking pin 14 can also be provided at the narrow end of the wedge 12.

The longitudinal extent of the openings 13 oriented in the longitudinal orientation of the U-legs 4 is so large that the wedge 12 is inclined from both sides to the surface of the U-legs 4 and can be used in two positions offset by 90 ° in order to previous insertion of the fastener 9 does not have to pay attention to the position of the transverse slot 9c. Instead of the correspondingly extended recesses or openings 13, a plurality of openings 13 could also be provided next to one another in order to enable these two inclined positions of the wedge 12.

In the exemplary embodiment, the fastening points 5 are designed as recesses or holes and are arranged on the U-legs 4 of the device 1 at a distance from the openings 13 for the anchoring wedge 12. 1 makes it clear that a fastening point 5 is provided on each U-leg 4 and that both fastening points 5 have the same shape and the same position, for example are designed as bores for a push-through bolt, which is also provided with corresponding bores 15 on the Straightening strut 2 fits, which in turn can be inserted between the two U-legs 4. Thus, this alignment strut 2 or another accessory with its coupling area and its corresponding fastening point 15 can be inserted between the U-legs 4 and anchored there with a push-through bolt through all fastening points 5 and 15. You can then absorb or transmit forces and moments that are introduced by the device 1 in an advantageous manner without the risk of twisting or evasion into the profiles 3, or conversely, the outgoing forces from the profiles 3 and the formwork panels in this way via the Device 1 or the like on such a strut 2. be transmitted.

Although other solutions are also possible, it is expediently provided in the exemplary embodiment that the extensions 7 of the U-legs 4 consist of them in one piece. The U-transverse web 6 of the device 1 is inserted and welded between the U-legs 4 and their extensions 7 and its surface in the use position on the outer web 3b of the stiffening profile 3 is preferably approximately with the discontinued area of the U-legs 4 flush or even protrudes somewhat as shown in FIG. 4.

In the exemplary embodiment, the perforation 8 for the fastening element 9 is a hole that is particularly easy to attach.

Fig. 1 illustrates that the bolt-shaped fastening element 9 between its shaft 9a, which is round in cross-section, and the roof-shaped inclined surfaces on the underside of its head 9b, has a square area 9d as a means of preventing rotation for engaging in the recess 10 of the crosspiece 3b of the stiffening profile 3. Both the bevels on the head 9b as well as this angular region 9d thus stabilize the position of the fastening element 9, thus the wedge 12 and also the entire device 1, and thus improve the transmission of forces and moments.

In Fig.1 can also be seen that the U-legs 4 of the device 1 between their end faces 4a and their edges facing away from the crosspiece 6b 4b outside the openings 13 for the anchoring wedge 12 and the mounting holes 5 for the accessories 2 may be chamfered. This saves weight and an unfavorable protrusion of the device 1 compared to the profiles 3 and the accessories 2 is limited as much as possible.

A device 1 is used to connect accessories 2 with formwork panels, compensating elements or the like. Formwork elements that have stiffening webs or stiffening profiles 3 on their side facing away from the formlining. The device 1 has an essentially U-shaped cross section, its U-legs 4 fastening points 5, preferably bores, for the accessories 2 such as belts, struts, running consoles or the like. have and the U-cross bar 6 in the position of use against a stiffening profile 3 and above all against a cross bar 3b provided on this profile 3 and is tightened. At least one of the U-legs 4, preferably both U-legs 4, has on the side facing the formwork skin over a part of its length a continuation 7 beyond the U-crosspiece 6, which is provided as an anti-rotation device and on the The longitudinal side surface 3a of the stiffening profile 3 or the transition from the rear web 3b to the longitudinal side surface 3a can be applied. The U-cross bar 6 of the device 1 has at least one — possibly even open at the edge — recess or perforation 8 for the engagement of a fastening element, preferably for the passage of the shaft 9a a fastening element 9. This makes it possible to anchor the device 1 in a position secured against rotation in two positions rotated by 90 ° on a stiffening profile 3, so that the forces and moments that occur can be transmitted well.

An embodiment essential to the invention can still be seen particularly in FIG. 5 and also in FIG. 2. Thereafter, the continuations 7 are somewhat obliquely exposed relative to the parallel U-webs 4 in order to adapt them well to the trapezoidal shape of the stiffening profile 3 and the corresponding oblique Obtain orientation of the cross section of the side webs 3a of the stiffening profile 3. The inner dimensions of these somewhat oblique extensions 7 correspond to the outer dimensions of the two longitudinal webs 3a of the stiffening profile 3.

In the figures it can still be seen that the wedge 12 with its narrower area passes through a U-leg and its recess 13 in the position of use, but with its wider area passes the opposite U-leg and its end face on the outside or is even supported on it. It is therefore not necessary for the wedge to penetrate both recesses 13 at the same time, but only selectively one of them.

Claims (19)

1. A device (1) for connecting additional elements (2) to forming panels, compensating mmembers or suchlike formwork members having stiffening webs or stiffening profiles (3) on their side averted from the forming surface, the device (1) having an essentially U-shaped cross section, the U-arms (4) having fastening locations (5) for the additional parts (2) such as booms, platform brackets or the like, and in the position of use the U-crosspiece (6) butting against a stiffening profile (3) of the formwork, characterized in that the two U-arms (4) have extensions (7) passing over part of their length and beyond the U-crosspiece (6) on that side of said U-arms which faces the forming surface in the position of use, said extensions being provided as protection against torsion and being adapted to be placed against the longitudinal side face (3a) of the stiffening profile (3) and against the edge or bend at the transition from a rearward web (3b) to the longitudinal side face (3a) of said stiffening profile (3), and that the U-crosspiece (6) of the device (1) has at least one point of engagement, recess or hole (8) for a shank (9a) of a fastening member (9) to engage or pass through, said fastening member (9) having a head (9b) or the like projecting radially beyond said shank (9a) at least to one side and being adapted to be inserted into the stiffening profile (3) from the side averted from the forming surface, through an opening (10) in said stiffening profile, and to be anchored or clamped to the latter with its head (9b) and has at the end averted from its head (9b) or suchlike anchorage a couter-stop for anchorage to the U-shaped device (1), and that the two extensions (7) shortened relative to the total length of the U-arms (4) form together with the U-crosspiece (6) a shoulder (11) and are located beyond the neighbouring region of the holes (8).

2. A device as claimed in claim 1,characterized in that the fastening member (9) has a hammerhead (9b) which in one position of orientation is adapted to be inserted throu th an oblong hole (10) in the cross web (3b) of the stiffening profile (3) and in the twisted condition - e.g. throu th 90°-engages behind the edges of the oblong hole (10).

3. A device as claimed in claim 1 or claim 2, characterized in that the shoulder (11) is approximately steplike.

4. A device as claimed in any one of claims 1 to 3, characterized in that the shoulder (11) between U-crosspiece (6) and extension (7) of the U-arms (4) is adapted to be placed against the longitudinal side (3a) of the stiffening profile (3) and so act as protection against torsion and is situated at that distance from the hole (8) for the fastening member (9) which the oblong hole or suchlike opening (10) in the stiffening profile (3) has from the longitudinal webs (3a).

5. A device as claimed in any one of claims 1 to 4, characterized in that the counter-stop serving for the fastening member (9) and acting upon the U-crosspiece (6) of the device (1) is adapted to be braced against the latter.

6. A device as claimed in any one of claims 1 to 5, chacterized in that the counter-stop engages the shank (9a) of the fastening member (9) in a releasable manner.

7. A device as claimed in any one of claims 1 to 6, characterized in that a transverse slit (9c) throuth the shank (9a) of the fastening member (9) at the end thereof averted from the head (9b), and a wedge (12) adapted to be inserted into the transverse slit, are provided as the counter-stop, in the position of use the transverse slit (9c) preferably extending ritht into the hole (8) in the U-crosspiece (6) of the device (1).

8. A device as claimed in any one of claims 1 to 7, characterized in that in the position of use the transverse slit (9c) in the shank of the fastening member is disposed between the U-arms (4) on that side of the U-crosspiece which is averted from the forming surface, and the U-arms (4) of the device (1) have openings (13) at the level of the transverse slit (9c) for the anchoring wedge (12).

9. A device as claimed in any one of claims 1 to 8, characterized in that the cross section of the transverse slit (9c) for the wedge (12) is arranged on the shank (9a) of the fastening member (9) so as to be twisted - preferably throuth 45°-relative to the hammerhead (9b) of the latter, and the openings (13) in the U-arms (4) of the device are arranged so as to be staggered in such a way and/or extend laterally in such a way that the wedge (12) passes at an angle from the one arm (4), throuth the anchoring slit (9c) of the fastening member, to the other opening (13).

10. A device as claimed in any one of claims 1 to 9, characterized in that the openings for the wedge in the U-arms of the device extend laterally in such a way or that so many openings are provided side by side that the wedge (12) can be inserted from both sides at an angle to the surface of the U-arms (4), in at least two positions preferably rotationally staggered throuth 90°.

11. A device as claimed in any one of claims 1 to 10, characterized in that the fastening locations for the releasable attachment of additional parts take the form of recesses, preferably holes, and are arranged on the U-arms (4) of the device (1), in spaced relationship to the openings (13) for the anchoring wedge (12).

12. A device as claimed in any one of claims 1 to 11 , characterized in that a fastening location (5) is provided on each U-arm (4) and both fastening locations (5) are preferably of the same shape and correspond in position, in particular taking the form of bores for a bolt or the like.

13. A device as claimed in any one of claims 1 to 12, characterized in that the surfaces of the head of the connecting bolt which face the inside of the U-cross web of the stiffening profile slant outwardly from the shank in accordance with a bead-like or channel-like depression of the U-cross web of the stiffening profile.

14. A device as claimed in any one of claims 1 to 13, characterized in that the extensions (7) of the U-arms (4) are integral therewith.

15. A device as claimed in any one of claims 1 to 14, characterized in that the U-crosspiece (6 ) of the device (1) is fitted, particularly welded, between the U-arms (4) and extensions (7) thereof and its surface resting against the outer web (3b) of the stiffening profile (3) in the position of use is preferably approximately flush with the non-extended area of the U-arms (4).

16. A device as claimed in any one of claims 1 to 15, characterized in that the hole (8) for the fastening member (9) is a bore.

17. A device as claimed in any one of claims 1 to 16, characterized in that the bolt-like fastening member (9) has between its shank (9a) of preferably round cross section and the angular surfaces arranged in a roof-shaped manner on the underside of its head (9b) a square area ( 9d ) as protection against torsion, said square area serving to engage the recess (10) in the cross web (3b) of the stiffening profile (3).
18. A device as claimed in any one of the preceding claims, characterized in that the U-arms (4) of the device (1) are slanted between their end faces (4a) and their edges (4b) averted from the crosspiece (6), said slants being beyond the openings (13) for the anchoring wedge (12) and the holes (5) for fastening additional parts (2).

19. A device as claimed in any one of the preceding claims, characterized in that the extensions (7) of the U-arms (4) of the device (1) arranged particularly parallel to one another diverge, and the inside clearance of said extensions corrresponds approximately to the outside dimensions of the longitudinal webs (3a) of the stiffening profile (3).

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