TWI857199B - Anchor channel - Google Patents

Abstract

For retrofitted or scheduled securement of a C-profile channel (2) of an anchor channel (1) arranged close to the edge in a building element (5) made of concrete, the invention proposes that strip-like surface anchors (9) be mounted in a slot (3) of the C- profile channel (2) and fixed to or in the building element (5).

Description

Retainer pipe

The invention relates to a retainer pipe having the features of the preamble of claim 1. The invention further relates to two fastening arrangements of such a retainer pipe according to claims 11 and 12.

The fixing pipe is usually arranged to sink flush in a floor or wall made of concrete and to serve to fasten items such as machinery by means of, for example, screws. "Sinking flush" means that the fixing pipe is embedded in the concrete and one side of the fixing pipe is flush with the surface of, for example, the concrete. During the manufacture of the floor or the like, concrete is poured around the fixing pipe on three sides. The fixing pipe usually has a C-shaped profile pipe, i.e. a square or rectangular tube profile with a continuous longitudinal groove in the transverse center of one side (which is also referred to herein as the "upper side").

European patent application EP 3 438 361 A1 discloses a fixture pipe with a C-profile pipe, from which the C-profile pipe is fixed in concrete, bolt-like fixtures with disc-shaped feet protrude from the lower side positioned relative to the groove of the C-profile pipe in the longitudinal center plane of the C-profile pipe, which are cast into the concrete during the casting of the fixture pipe and fix the fixture pipe in the concrete to prevent the fixture pipe from being pulled out of the concrete perpendicular to the surface of the concrete. The fixture pipe is arranged parallel to and close to the edge of the concrete body. If excessive transverse forces are applied to the anchor pipe in a direction parallel to the concrete surface and in the direction of the edge, the anchor pipe can detach from the concrete body due to its arrangement close to the edge and leave a fracture cone or generally a fracture point in the concrete body. Anchor pipes which are arranged close to the edge of the concrete body for structural reasons therefore usually have to be "tieback-anchored". In order to tieback-anchor against transverse forces transverse to the C-profile pipe and parallel to the surface of the concrete, anchor pipes are known which have a rod-shaped anchor which projects from the lower side located opposite the groove of the C-profile pipe, perpendicular to the center plane in which the bolt-shaped anchor is located. During casting, the rod-shaped anchor is cast parallel to the surface of the concrete and sinks below the surface of the concrete by the height of the C-profile pipe. The rod-shaped fixture absorbs the lateral force acting on the fixture pipe and prevents the fixture pipe from being separated from the concrete body along the edge direction of the concrete body. The disadvantage of the prior art lanyard fixture is that such lanyard fixture cannot be retrofitted to the concrete body and must be cast during the manufacturing of the concrete body.

The problem of the invention is to propose a more flexible lanyard fixing which, on the one hand, provides the possibility of retrofitting the lanyard fixing of the fixture pipe to or in the concrete and, on the other hand, allows a predetermined lanyard fixing of the fixture pipe during the pouring of the concrete.

According to the invention, the aforementioned problems are solved by the features of claims 1, 11 and 12. The fixture pipe according to the invention has a C-profile pipe with a groove in the first side of the C-profile pipe, which is intended to be cast in such a way that the C-profile pipe is embedded in the concrete except that the first side of the C-profile pipe is particularly flush with the surface of the concrete. The groove is particularly a groove that is continuous in the longitudinal direction of the C-profile pipe, particularly in the transverse center of the C-profile pipe, or more precisely on its first side. One or more fixing elements protrude from the second side, which is positioned opposite to the first side, and these fixing elements fix the cast C-profile pipe in the concrete.

Furthermore, the fixture pipe according to the invention has at least one surface fixture for fixing the lanyard of the C-profile pipe, which is supported on a first side of the C-profile pipe and projects from (i.e. opposite to) a third side of the C-profile pipe adjacent to the first side. The part of the surface fixture that projects from the C-profile pipe projects from the C-profile pipe in particular at a right angle and is configured as a strip. The strip is in particular a flat steel strip or a thin steel sheet that has been customized or stamped. The strip has a width that is in particular less than 60 mm, preferably between 30 mm and 50 mm. "Width" is to be understood as the dimension of the strip in the longitudinal direction of the C-profile pipe. In particular, the length of the strip is an integer multiple of the width of the strip. "Length" is to be understood as the distance of the strip from the fixture pipe. The length of the strip preferably corresponds to at least three times and in particular at least five times the width of the strip. However, depending on the structural environment and the intended use of the surface fixture, the length can also correspond to five to ten or twenty times the width. Even longer strips are possible. In particular, in the case of longer fixture pipes, a plurality of surface fixtures, in particular equidistant from one another, are arranged on the fixture pipe, resulting in a uniform lanyard fixation over the entire length of the fixture pipe.

The surface fixture does not need to be directly connected to the third side or directly arranged on the third side, but only needs to protrude above or outside the surface. The surface fixture can be supported directly or indirectly, for example, by means of an intermediate piece for height equalization. Preferably, the surface fixture can be connected to the C-profile pipe on the first side. In detail, the surface fixture is operatively connected to the groove of the C-profile pipe and can be additionally connected to the first side of the C-profile pipe. However, the surface fixture does not necessarily have to engage with the groove. The surface fixture can, for example, be simply placed on the first side of the C-profile pipe that is flush with the surface and, in particular, only partially covers the groove, and thereby (in particular, by welding) is fastened to the C-profile pipe. At least in some cross-sections, the surface fixture can be configured as a thin sheet metal strip having a cutout whose dimensions are substantially complementary to the dimensions of the groove of the C-profile pipe. In particular, the thin sheet metal strip having the cutout is welded to a first side of the C-profile pipe, such as by riveting, or fastened to the first side in some other manner, such that the cutout at most partially covers the groove. In particular, the width of the cutout is complementary to the transverse width of the groove of the C-profile pipe.

The surface fastener, or more precisely the strip of the surface fastener, is arranged on the C-profile pipe so that when the C-profile pipe has been cast as intended, the surface fastener protrudes to one side of the C-profile pipe and rests on or is flush with the surface of the concrete. The surface fastener has a fixing member at a distance from the C-profile pipe, in particular at one end of the strip. The fixing member is generally a method or device for fastening the surface fastener to the concrete. For example, it can be a hole in the strip, by means of which the surface fastener can be fastened to the concrete by means of a fastening member, such as a bolt fastener, a concrete screw, a fixing rod fastened chemically in the concrete or the like. Another possibility is that the surface fixture is fixed, for example, by bonding to concrete, in which case the center point of the joint surface is spaced from the C-profile duct if the adhesive extends up to the C-profile duct. The fixing element is in that case an adhesive. However, the surface fixture can also be fixed in a building element made of concrete, in particular cast into the building element to a depth that makes it flush with the surface of the concrete (i.e., the building element). The surface fixture is therefore particularly flush with the surface. In this predetermined type of fixing of the C-profile duct in concrete, the surface fixture is therefore at least partially bonded to the concrete and the fixing member is in particular likewise at least partially cast into the concrete. In that case, the fixing member is in particular a hole, a bolt, a pigtail anchor or the like. The advantage of the predetermined type of fixing is that substantially the entire surface of the concrete can be used and that this surface is not obstructed by the surface fixing. In the case of retrofit fixing, the surface fixing is supported on a C-profile pipe and thus creates a potentially troublesome protrusion on the otherwise flat surface of the concrete.

The invention firstly has the advantage that the already cast C-profile pipe of the holder pipe can then be fastened against transverse force loads, i.e. it can be fastened by means of lanyards. This can be advantageous or even necessary in the case of C-profile pipes arranged close to the edge in concrete if there is a risk of the concrete detaching laterally from the C-profile pipe at the edge of the concrete or if such detachment has already occurred. It is also possible to prevent the concrete from detaching by means of the predetermined fastening of the C-profile pipe, in which case, as already mentioned, the entire surface of the concrete can be utilized.

According to the invention, the surface fixture, or more precisely the strip, can protrude from the C-profile pipe laterally on or from its third side on a plane that is flush with the first side of the C-profile pipe with the groove, or the surface fixture can pass through a plane that is flush with the first side of the C-profile pipe. The third side is a side of the C-profile pipe adjacent to the first side with the groove. In the first case, once the C-profile pipe has been cast as intended, the surface fixture is supported on the surface of the concrete. In the second case, the surface fixture penetrates the concrete from the side of the C-profile pipe. The second condition is intended for a condition in which the surface fixture is attached to the C-profile pipe from the beginning, so that during the casting of the C-profile pipe, the surface fixture is also cast together with the C-profile pipe and does not need to be subsequently sunk into the concrete. As mentioned above, this configuration has the advantage that the surface fixture is not supported on the concrete over its entire length, but is partially or fully sunk into the concrete.

The fastening of the surface fixture to the C-profile pipe can be achieved, for example, by installing the surface fixture in a groove of the C-profile pipe. The installation only needs to be tension-resistant in the direction in which the surface fixture protrudes from the C-profile pipe, i.e., it is able to transmit the lateral forces of the C-profile pipe to the surface fixture as tension. Installing the surface fixture in the groove of the C-profile pipe is a simple, quick and economical way to connect the surface fixture to the C-profile pipe.

The surface fixture may have a single hook for connecting to the C-profile pipe, the single hook engaging around a first edge of the groove of the C-profile pipe so that it transmits the lateral force of the C-profile pipe to the surface fixture as a tensile force. The surface fixture may also have a double hook, which once the double hook (i.e. the surface fixture) has been connected to the C-profile pipe, engages around a first edge of the groove of the C-profile pipe and engages under a second edge of the groove of the C-profile pipe at an opposite position so that the double hook cannot be easily lifted out of the C-profile pipe.

In order to connect the surface fixture to the C-profile pipe, another embodiment of the present invention provides a fastening device fastened to or in the C-profile pipe, the fastening device having a shank protruding from a slot in a first side of the C-profile pipe. The fastening device can be, for example, a hammer screw or a sliding nut with a drive-in threaded bolt. The surface fixture is fastened to the shank of the fastening device, which protrudes from the slot of the C-profile pipe.

In another advantageous embodiment of the invention, the surface fixture has a surface structure, in particular a sawtooth, on a side remote from the first side. The fastening device (for example, as described in the previous paragraph) can thereby prevent displacement along the groove of the C-profile pipe by interlocking and/or frictional fastening.

One specific embodiment of the present invention provides that the surface fixture connects the C-shaped profile pipe to a second C-shaped profile pipe, and the second C-shaped profile pipe is configured to be spaced apart from the first C-shaped profile pipe. The surface fixture transfers the load from one C-shaped profile pipe to another C-shaped profile pipe spaced apart therefrom.

One specific embodiment of the invention provides that the surface fixator comprises or consists of a pseudoplastically stretched shape memory alloy. Shape memory alloys are metal alloys that change their shape by a phase transition of their crystal structure (especially between ferrite and austenite). Phase transition and shape change occur when a transition temperature is reached or exceeded. The shape memory alloy must have previously undergone pseudoplastically deformation, which is usually but not necessarily achieved by mechanical deformation, which can then be completely or partially reversed by heating to the transition temperature or above the transition temperature. Shape memory alloys with a bidirectional effect are also known, which deform at high temperatures and fully or partially recover to their original shape at low temperatures. In this specific embodiment of the invention, once the surface fixture has been secured to or in the concrete, tensile stress can be generated in the surface fixture by heating the surface fixture to or above the transformation temperature of the shape memory alloy, i.e., the surface fixture is prestressed.

One embodiment of the invention provides an elastic and/or plastic deformable strip, which is external to a fourth side of a C-profile pipe, the fourth side being adjacent to the first side and being positioned relative to the third side. The first side has a groove, and the surface fixture protrudes from the adjacent third side. The deformable strip is thus positioned externally on the C-profile pipe, opposite to a side from which the surface fixture protrudes. Preferably, the deformable strip occupies the entire area of the fourth side of the C-profile pipe. The deformable strip allows a slight displacement of the C-profile pipe in the concrete in a direction transverse to the C-profile pipe, in a direction opposite to the direction in which the surface fixture protrudes from the C-profile pipe. The slight displacement caused by the compression of the strip enables, in particular, the single hook and the double hook to be firmly seated in the groove of the C-profile pipe under tension before the C-profile pipe comes into contact with the concrete. In other words, a certain amount of play between the single hook and the double hook and the C-profile pipe can be compensated before the C-profile pipe actually comes into contact with the concrete.

For explanation of the fastening arrangement according to the present invention, reference is made to the explanation of the retainer pipe according to the present invention given above.

In the fastening arrangement for the lanyard fastening of the fixture pipe according to the invention, the C-profile pipe fastening of the fixture pipe is sunk into a building element made of concrete so that its first side with the groove is flush with the surface of the building element. Furthermore, a surface fixture is connected to the C-profile pipe on a first side and protrudes from the C-profile pipe on a third side adjacent to the first side. The surface fixture, or more precisely, the strip, is supported on the surface of the building element and is fastened to the building element at a distance from the C-profile pipe or penetrates the building element laterally from the C-profile pipe.

In detail, in this fastening arrangement, the C-profile duct is arranged close to the edge of the building element, that is to say close to the edge and in particular parallel to the edge of the building element. "Close" here means that the distance between the C-profile duct and the edge corresponds to twice the length of the C-profile duct at the maximum and in particular this distance is less than the length of the profile duct. The surface fixture, or more precisely the strip of the surface fixture, extends away from the edge of the building element at an angle, in particular a right angle, relative to the C-profile duct. The strip of the surface fixture is thus away from the edge. The strip is particularly fastened to the surface of the building element or is fixed in the building element at the end of the strip facing away from the C-profile duct, with the result that a stable lanyard fixation of the fixture duct is achieved. By means of the fastening arrangement according to the invention, the fixture duct can thus be cast securely into the building element close to its edge without any risk of it becoming detached from the building element when it is subjected to load.

As mentioned above, the C-profile duct can also be fixed in a concrete building element, in particular cast into the building element and sunk to a depth such that the surface fixture is flush with the surface of the building element.

The features and feature combinations, configurations and specific examples of the invention mentioned above in the description and the features and feature combinations mentioned below in the description of the drawings and/or shown in the drawings can be used not only in the specific combination defined or shown in each case, but also in any other combination or alone. Configurations of the invention are possible that do not have all the features of the attached claims. Individual features of the claims may also be replaced by other disclosed features or feature combinations. Configurations of the invention may not have all the features of a specific example, but in principle have any part of the characterized features of an exemplary embodiment combined with one, some or all features of one or more other exemplary embodiments, as the case may be.

1: Fixer pipe

2: C-shaped profile pipe

3: Slot

4: First side

5: Architectural elements

6: Second side

7:Fixed components

8: Legs

9: Surface Fixer

10: Third side

11: Single hook

12: The first edge of the groove

13:Fixed components

14: Fourth side

15: Stripe

16: Edge

17: Double hook

18: The second edge of the groove

19: Hammer head screw

20: Fastening device

21: Hammer

22: Handle

23: Surface structure

24: Sawtooth

25: Thin metal strips

26: Incision

The present invention is explained in more detail below with reference to the exemplary embodiments shown in the accompanying drawings. The five figures show perspective views of five exemplary embodiments of the retainer pipe according to the present invention. For reasons of clarity and simplicity, the same reference symbols are used in all figures.

[Figure 1] shows a fixture pipe according to the first exemplary embodiment of the present invention, the fixture pipe having a C-shaped profile pipe.

[Figure 2] shows a fixture pipe according to a second exemplary embodiment of the present invention, wherein the surface fixture has a double hook.

[FIG. 3] shows a fixture pipe according to a third exemplary embodiment of the present invention, in which a hammer screw connects the surface fixture to the C-profile pipe.

[Figure 4] shows a fixture pipe according to the fourth exemplary embodiment of the present invention, in which a plurality of surface fixtures connect two C-shaped profile pipes.

[FIG. 5] shows a fixture duct according to a fifth exemplary embodiment of the present invention, wherein the surface fixture is formed of two strips and a sheet metal strip, and wherein the surface fixture is flush with the surface of the building element.

The fixture pipe 1 according to the present invention shown in FIG. 1 has a C-shaped profile pipe 2 having a rectangular hollow profile with continuous longitudinal grooves 3 in a first side 4, which can also be referred to as the upper side of the C-shaped profile pipe 2.

The holder pipe 1 or its C-profile pipe 2 is intended to be cast into a building element 5, such as a concrete floor, so that, as can be seen in FIG. 1 , the C-profile pipe 2 is sunk into the building element 5 except that its first side 4 with the groove 3 is flush with the surface of the building element 5. Only some of the edges of the building element 5 are shown in the attached figure, and the building element is shown transparent so that the holder pipe 1 is visible.

The fixing elements 7 protrude from the second side 6 located opposite the first side 4 and which can also be referred to as the lower side of the C-profile duct 2, and are fastened (e.g. welded) to the second side 6 of the C-profile duct 2. In an exemplary embodiment, the fixing elements 7 are bolts having flange-like legs 8 at their ends remote from the C-profile duct 2. The fixing elements 7 are embedded in the concrete of the building element 5 and hold the C-profile duct 2 against being pulled out of the building element 5 perpendicular to its surface. In an exemplary embodiment, the fixing elements 7 are arranged in the longitudinal center plane of the C-profile duct 2. The fixing elements 7 can, for example, protrude from the second side 6 of the C-profile duct 2 and also extend into the building element 5 at a V-shaped angle to each other as seen in the longitudinal direction of the C-profile duct 2 (not shown in the figure).

A surface fixture 9 in the form of a strip in the exemplary embodiment is mounted in the groove 3 of the C-profile pipe 2, the surface fixture being supported on the first side 4 of the C-profile pipe 2 and protruding in the form of a strip on or from the third side 10 of the C-profile pipe 2, the third side being adjacent to the first side 4. The surface fixture 9 is supported on the surface of the building element 5. At one end, the surface fixture 9 has a single hook 11, which engages around a first edge 12 of the groove 3 of the C-profile pipe 2 and in that way connects the surface fixture 9 to the C-profile pipe 2 in a tension-resistant manner. "Tensile resistance" means that the single hook 11 of the surface fixture 9 installed in the groove 3 of the C-shaped profile pipe 2 transmits the lateral force acting laterally relative to the C-shaped profile pipe 2 to the surface fixture 9 as a tensile force acting in the longitudinal direction of the surface fixture 9.

Close to the end of the C-profile pipe 2 remote from the fixture pipe 1 according to the invention and in any case at a distance from the C-profile pipe 2, the surface fixture 9 has a hole at one end of the strip, which hole is generally referred to herein as the fixing member 13 of the surface fixture 9. By means of the hole in the strip forming the fixing member 13, the surface fixture 9 can be fastened to the building element 5 at a distance from the C-profile pipe 2, and thus used for the lanyard fixing of the C-profile pipe 2. For this purpose, for example, a screw can be screwed through the fixing member 13 of the surface fixture 9 (formed as a hole) into an expandable fastening plug (not shown in the figure) which has been expanded and fixed in the building element 5.

The surface fixture 9 can also be secured, for example, by gluing to the surface of the building element 5. In that case, the adhesive forms a fixing member which connects the surface fixture 9 to the building element 5 at a distance from the C-profile duct 2, even if the adhesive has been applied to the surface fixture 9 as far as the C-profile duct 2.

On the fourth side, the C-profile duct 2 has on the outside a deformable strip 15 which completely or almost completely covers the fourth side 14 of the C-profile duct 2. In the exemplary embodiment, the strip 15 consists of a resilient solid foam material. The fourth side 14 of the C-profile duct 2 adjoins its first side 4 with the groove 3 and the oppositely positioned second side 6 from which the fixing element 7 protrudes. The fourth side 14 of the C-profile duct 2 is oppositely positioned to the third side 10, on which the surface fixing device 9 protrudes or from which it protrudes. If the C-profile duct 2 is subjected to a transverse load, i.e. longitudinally relative to the surface fixture 9 and away from the surface fixture, the deformable strip 15 allows the C-profile duct 2 in the building element 5 to move slightly transversely relative to the C-profile duct 2, parallel to the surface of the building element 5 and away from the surface fixture 9. This avoids premature detachment of the concrete of the building element 5 when the C-profile duct 2 is subjected to such transverse stresses.

The C-profile pipe 2 of the fixture pipe 1 according to the present invention preferably has a plurality of surface fixtures 9, which are installed in the groove 3 of the C-profile pipe 2 and are transversely fixed to the building element 5 relative to the C-profile pipe 2, parallel to each other and spaced apart from each other in the longitudinal direction of the C-profile pipe 2. The surface fixtures 9 fasten the C-profile pipe 2 against the transverse force and prevent the concrete from escaping, especially in the case of the C-profile pipe 2 being arranged near the edge in the building element 5. The surface fixtures 9 protrude from the C-profile pipe 2 on a side located opposite to the edge 16 of the building element 5 near the C-profile pipe 2.

As shown by the dotted line in FIG. 1 , the surface fixture 9 can also be tilted so that it is laterally adjacent to the concrete of the C-profile duct 2 penetrating the building element 5 and overcomes the lateral force to fasten the C-profile duct 2 to the building element 5. In that case, the surface fixture 9 is laterally adjacent to the surface of the C-profile duct 2 penetrating the building element 5, and the surface of the building element 5 is flush with the first side 4 of the C-profile duct 2, and thus forms a plane flush with the first side 4 of the C-profile duct 2.

In FIG. 2 , the surface fixture 9 has a double hook 17 at its end instead of a single hook 11. Like the single hook 11, the double hook 17 engages around the first edge 12 of the groove 3 of the C-profile pipe 2, and additionally engages below the second edge 18 of the groove located opposite the first edge 12, so that the double hook 17 cannot be pulled out of the groove 3 and the surface fixture 9 cannot be lifted from the first side 4 of the C-profile pipe 2.

In the exemplary embodiment of the invention shown in FIG. 3 , a hammer screw 19 connects the surface fixture 9 to the C-profile pipe 2. The hammer screw 19 (which can also be generally considered as a fastening device 20) is installed in the C-profile pipe 2 by its hammer head 21 so that its shank protrudes from the groove 3 of the C-profile pipe 2 on the first side 4. Instead of hooks 11, 17, the surface fixture 9 in this exemplary embodiment of the invention has a hole through which the shank 22 of the hammer screw 19 forming the fastening device 20 extends, so that the surface fixture 9 is installed on the groove 3 of the C-profile pipe 2 and connected to the C-profile pipe 2 in this way. A component (not shown in the figure), for example a machine frame, can be attached to the shank 22 of the hammer screw 19 forming the fastening device 20, which shank protrudes from the C-profile pipe 2 and at the same time from the building element 5.

In the exemplary embodiment of the present invention shown in FIG. 4 , two C-profile ducts 2 are arranged submerged in a building element 5, the C-profile ducts being spaced apart and parallel to each other, wherein their first side 4 has a groove 3 flush with the surface of the building element 5. A plurality of surface fixtures 9 arranged transversely and parallel to the C-profile ducts 2 connect the two C-profile ducts 2, with the result that the C-profile duct 2 arranged close to the edge of the building element 5 can be fastened to the C-profile duct 2 further away from the edge of the building element 5. FIG. 4 shows only one surface fixture 9.

In the exemplary embodiment shown in FIG. 5 , the surface fixture 9 is formed by two strips each having a fixing member 13 and a sheet metal strip 25 having a cutout 26. The sheet metal strip 25 is welded to the first side 4 of the C-profile duct 2 so that the cutout 26 is oriented parallel to the groove 3 and thus does not obscure the groove 3 of the C-profile duct 2. The basic difference between the exemplary embodiment of FIG. 5 and the aforementioned exemplary embodiments is that it is not the first side 4 of the C-profile duct 2 that is flush with the surface of the building element 5, but the surface fixture 9 that is flush with the surface of the component 5. Therefore, the entire surface area of the component 5 can be utilized, because the surface fixture 9 does not produce a protruding area. The C-profile duct 2 is cast into the building element 5 together with the surface fixture 9.

The surface fixture 9 has a surface structure 23 in the form of a sawtooth 24. Thus, for example, a hammer screw which is fastened in a groove by means of a sawtooth washer can be fastened against sliding in the longitudinal direction of the pipe, i.e. along the groove 3 (not shown in the figure). The sawtooth washer engages in the sawtooth 24.

The surface fixture 9 can in principle consist of any desired material, for example of a metal strip. It is also possible for the surface fixture 9 to be made of plastic, in particular of fiber-reinforced plastic. For example, the surface fixture 9 can consist of or contain a prepreg. The prepreg has fibers embedded in a synthetic resin, which can be hardened for bonding to the surface of the building element 5 (not shown in the figure).

An exemplary embodiment of the present invention provides that the surface fixture 9 is composed of or at least contains a pseudo-plastic tensile shape memory alloy. The surface fixture 9 becomes shorter when it is heated to or above the transformation temperature of the shape memory alloy. This makes it possible to generate tensile stress in the surface fixture 9, thereby prestressing the C-shaped profile duct 2 transversely relative to the C-shaped profile duct 2 and parallel to the surface of the building element 5 far from the edge of the building element 5 close to the C-shaped profile duct 2.

The fixing pipe 1 and its C-profile pipe 2 embedded in the building element 5, the fixing element 7 protruding from its lower side and likewise embedded in the building element 5, and the surface fixing 9 fixed to or in the building element 5 form a fastening arrangement according to the invention.

1: Fixer pipe

2: C-shaped profile pipe

3: Slot

4: First side

5: Architectural elements

6: Second side

7:Fixed components

8: Legs

9: Surface Fixer

10: Third side

11: Single hook

12: The first edge of the groove

13:Fixed components

14: Fourth side

15: Stripe

16: Edge

18: The second edge of the groove

Claims (11)

A fixing pipe for fixing in concrete, comprising a C-shaped profile pipe (2), the C-shaped profile pipe having a groove (3) in a first side (4), and the fixing pipe having a fixing element (7) on a second side (6) located opposite to the first side, the fixing pipe (1) having a surface fixing device (9) for fixing the lanyard of the C-shaped profile pipe (2), the surface fixing device being supported on the first side (4) of the C-shaped profile pipe (2) and protruding from the C-shaped profile pipe (2) to a third side (10) adjacent to the first side (4); wherein the surface fixing device (9) has a fixing member (13) which is connected to the C-shaped profile pipe (1) and is fixed to the surface of the fixing pipe (1). The C-shaped profile pipe (2) is separated from the C-shaped profile pipe (2), wherein the C-shaped profile pipe (2) is sunk in a building element (5) made of concrete and fixed so that its first side (4) having the groove (3) is flush with a surface of the building element (5); the surface fixer (9) is connected to the C-shaped profile pipe (2) on the first side (4) and protrudes from the C-shaped profile pipe (2) on the third side (10) adjacent to the first side (4); and the surface fixer (9) is supported on the surface of the building element (5) and is fixed to the building element (5) at a distance from the C-shaped profile pipe (2) or penetrates the building element (5) from the side of the C-shaped profile pipe (2). A fixing pipe for fixing in concrete, comprising a C-shaped profile pipe (2), the C-shaped profile pipe having a groove (3) in a first side (4), and the fixing pipe having a fixing element (7) on a second side (6) located opposite to the first side, the fixing pipe (1) having a surface fixing device (9) for fixing the lanyard of the C-shaped profile pipe (2), the surface fixing device being supported on the first side (4) of the C-shaped profile pipe (2) and protruding from the C-shaped profile pipe (2) to a third side (10) adjacent to the first side (4); wherein the surface fixing device (9) has a fixing member (13) which is connected to the surface fixing device (13) and the fixing member (13) is fixed to the surface fixing device (13). The surface fixture (9) is spaced apart from a C-shaped profile pipe (2), the C-shaped profile pipe (2) being fixed in a building element (5) made of concrete, in particular cast into the building element (5), and sinking to a depth such that the surface fixture (9) is flush with a surface of the building element (5); the surface fixture (9) is connected to the C-shaped profile pipe (2) on the first side (4) and protrudes from the C-shaped profile pipe (2) on the third side (10) adjacent to the first side (4); and the surface fixture (9) is fixed to the building element (5) at a distance from the C-shaped profile pipe (2) or penetrates the building element (5) from the side of the C-shaped profile pipe (2). A fixture conduit as claimed in claim 1 or 2, wherein the surface fixture (9) is connected to the C-profile conduit (2) on the first side (4). A fixture pipe as claimed in claim 1 or 2, wherein the surface fixture (9) protrudes from the third side (10) of the C-shaped profile pipe (2) to a plane flush with the first side (4) of the C-shaped profile pipe (2), or the surface fixture (9) passes through the plane flush with the first side (4) of the C-shaped profile pipe (2). A fixture pipe as claimed in claim 1 or 2, wherein the surface fixture (9) is installed in the groove (3) of the C-profile pipe (2). A fixture pipe as claimed in claim 1 or 2, wherein the surface fixture (9) has a single hook (11) which engages around a first edge (12) of the groove (3) of the C-shaped profile pipe (2), or has a double hook (17) which engages around the first edge (12) of the groove (3) of the C-shaped profile pipe (2) and engages below a second edge (18) of the groove (3) of the C-shaped profile pipe (2). A fixture pipe as claimed in claim 1 or 2, wherein a handle (22) of a fastening device (20) protrudes from the groove (3) in the first side (4) of the C-profile pipe (2), the handle being fastened to the C-profile pipe (2); and the surface fixture (9) being fastened to the handle (22). A fixture pipe as claimed in claim 1 or 2, wherein the surface fixture (9) connects the C-shaped profile pipe (2) to a second C-shaped profile pipe (2) spaced apart from the first C-shaped profile pipe (2). A fixture pipe as claimed in claim 1 or 2, wherein the surface fixture (9) comprises a pseudo-plastic tensile shape memory alloy. A retainer pipe as claimed in claim 1 or 2, wherein the C-profile pipe (2) has a deformable strip (15) on the outside on a fourth side (14) adjacent to the first side (4) and positioned opposite to the third side (10). A fixture pipe as claimed in claim 1 or 2, wherein the surface fixture (9) has a surface structure (23), in particular a sawtooth (24), on a side remote from the first side (4).