DE29610381U1 - Connector for the frontal connection of a beam to a component - Google Patents

Description

Bulldog-Simpson GmbH, Boschstr. 9, 28857 Syke

Connector for frontal connection of a beam to a component

The invention relates to a connector made of metal, in particular sheet metal, for the (at least substantially) concealed frontal connection of a first beam made of wood to a component, in particular a second beam running transversely to the beam to be connected, with a first fastening flange to be placed on the front side of the beam to be connected and a second fastening flange extending away from this at an angle of at least 90°, which is to be placed on the component, wherein the two fastening flanges are each provided with through-openings through which an elongated connecting means, such as in particular a nail, can be inserted in the respective installation state.

537

Bremen: Munich:

Holluralfce 32. D2S21» Hainen Prani-lusfph-SlralV 3«

PO, U. 10 "I 27, Ü2K07I Uran™ D-SOSOI Munich

Telephone (04 21) 3 40 « Telephone U) K") 34 70 »0

Tetctu* IM21) 34y 17 f^ Teh'h\ (üyy)347ül0

Tel« 244 >!5» liopal d Telev 524 282 fiirtxi d

Berlin-Brandenburg

D-14469 Pulsdani

Iclcjlflun (03 311 27 54 I'flduv (05 311 -' "5 43

Dusseldorf:

D-40W3 OiJsscldnrf

Telcp]mn(02 III 71 m S3 TeWa* 102 1117 IH 27 Leipzig:

Philipp- liusi'iillial-Slralic 1 f}-04103 Leipzig

o CIa* (03 41) 31 05 25

Kiel:

NicmaiinEwcg D-24105Kicl

Telephone [04 311 8 40 'lelcfax (0431)841177

Aicante:

Pla;.a Calvo Sulcl» i:S-03l'0l Alicaiilc (Spann·

'lelclas »34-(tö»HÜIH2

is to be driven from the outside into the beam or component to be connected.

For building wooden structures that are visible in the finished state, efforts are made for aesthetic reasons to create the connection points between the components of the wooden structure using a so-called connector and suitable connecting means in such a way that the connectors are not or hardly visible from the usage levels - i.e. are concealed.

In order to achieve this for a front-side connection of a beam, a Z-shaped connector is known (see e.g. DE 30 445 C2), the lower leg of which is inserted into a front-side, horizontal slot of the beam to be connected and is fastened therein with dowels or similar, which extend at right angles to this leg through the beam to be connected, while the upper leg is placed on a beam running transversely to the beam to be connected and the web running between the two legs rests on the front side of the beam to be connected or an outer side of the beam running transversely to it. Such a Z-connector is relatively complex in terms of its manufacture and assembly. In addition, the permissible vertical force to be absorbed by the connector in the connection area due to the risk of splitting in the slot area, among other things, is not only smaller than would result from the given beam width and height, but even smaller than for a non-slotted beam of the same width and a height that is equal to the height of the slotted beam to be connected above the slot, if a non-slotted beam of this size is connected to an adjacent component.

: BOEHMEKS'& BOEOSffiRT

DE-PS 819 146 discloses a connector for connecting two wooden beams, in which the fasteners (screws) to be driven into the front side of the beam to be connected run in the longitudinal direction of the beam to be connected and thus its fibers, so that even relatively low loads on the beam to be connected can lead to the fasteners tearing out, and therefore this connector is not suitable for higher loads.

This also applies to generic angle connectors or perforated plates, which consist of two fastening flanges each with through holes for driven-in fasteners, which are to be placed on one of the two wooden components to be connected and, in this state, are to be fastened with fasteners such as nails in particular. If, for example, one of these angle connectors, whose through holes are each designed as holes with a central axis running at right angles to the relevant fastening flange or its contact surface, were to be used for a concealed front connection of a beam, i.e. one of its fastening flanges were to be placed on the front of the beam to be connected and fastened there with driven-in fasteners such as nails, these would also run essentially parallel to the longitudinal axis of the beam to be connected when driven in and would only allow a relatively low load on the beam, because with such an arrangement even relatively low tensile forces lead to the fasteners tearing out.

The same applies to generic connectors whose two fastening flanges are aligned with each other, if one fastening flange is attached to the

-A-

front side of the beam to be connected and secured there with nails or similar that run in the longitudinal direction of the beam to be connected. Furthermore, with such an arrangement of the connecting elements there is a risk of splitting, particularly in the edge areas of the beam to be connected.

Connectors of the type described at the beginning have therefore so far only been used for non-concealed beam connections, whereby their fastening flange, which is to be attached to the beam to be connected at the front, is placed on an outside of the beam to be connected, so that the driven-in connecting elements run at right angles to the longitudinal direction of the beam to be connected and thus its grain direction and accordingly allow higher loads.

From DE 36 41 799'C2 a multi-part connector for the essentially concealed frontal connection of a beam to a second beam running transversely to it has become known, which is to be inserted with a vertically arranged, angle-shaped profile section into a corresponding frontal recess of the beam to be connected, the two legs of which are each provided with through holes, the central axis of which runs at right angles to the respective leg, so that a connecting means driven into a through hole does not run parallel to the longitudinal axis of the beam to be connected, but at an angle of preferably about 45°. The angle part attached to the beam to be connected in this way, which is provided with a threaded bushing at its lower end in the apex area, is then attached by means of a screw to a part of the connector consisting of a plate-shaped section and a bushing arranged on its outside, which in turn is connected to the plate-shaped section

driven-in fasteners to a transverse beam. This known connector allows higher loads due to the diagonal course of the fasteners driven into its angled section, but is very complex, especially since it also requires considerable effort to create a corresponding recess in the beam to be connected.

The present invention is based on the object of improving connectors of the type described at the beginning, which are not very complex both in terms of their manufacture and their assembly, in particular in such a way that they can also be used to connect relatively heavily loaded beams in a concealed manner at the front without the connecting means tearing out and the beam to be connected splitting.

The solution to this problem is that the through holes of the first fastening flange are at least partially (preferably predominantly or entirely) designed in such a way that they each form an oblique forced guide for the respective connecting means to be driven through them, the central axis of which - forming a guide axis for the respective connecting means - does not run at right angles to the first fastening flange or its contact surface on the front side of the first beam, but at an angle to it and thus to the longitudinal axis of the beam to be connected. It is assumed (and accordingly prescribed) that the specified shaft diameter of the connecting means to be driven into the respective through holes is essentially equal to the smallest clear opening width of the through holes, i.e. in the case of a through hole designed as a bore, equal to its diameter (at most slightly smaller), so that the respective

The forced guidance formed by the passage opening can develop its guiding effect, because otherwise the desired diagonal course of the connecting means to the longitudinal axis of the beam to be connected could not be ensured.

Although it has been shown that the tear-out strength of the connecting means to be driven through the first fastening flange - compared to a parallel run to the longitudinal axis of the beam to be connected - is already significantly increased if, in the assembled state, they only run at a relatively small angle to the fibers running parallel to the longitudinal axis of the beam to be connected, and that the risk of splitting in the outer areas of the beam to be connected due to the driven-in connecting means already decreases significantly with such a run, it is preferably provided that the central axis of the relevant through-openings each run at a (smallest) angle of maximum approx. 60° to the first fastening flange or its contact surface, thus intersecting the wood fibers of the beam to be connected at an angle of approx. 30°, and most preferably so that the central axis of the relevant through-openings each run at an angle of approx. 45° to the first fastening flange or its contact surface, which means that in a generic connector essentially the same positive effects can be achieved as can be achieved in the state of the art (see e.g. DE 36 41 799 C2) only with considerably greater effort.

Such a design of the connector according to the invention can be realized by a wide variety of configurations. The through-openings in question can be formed in a known manner by a bore, although their central axis is not perpendicular but oblique to the

: BOBHMEFtS*& BOEmis

contact surface of the first fastening flange. Since such defined drilling at an angle to a reference plane (here the contact surface or the surface of the first fastening flange lying parallel to it) is relatively difficult in terms of production technology, measures can be taken according to the invention to enable drilling perpendicular to a reference surface and still achieve the desired effect that the central axis in the through openings emerge from the first fastening flange not at a right angle but at an angle to the contact surface.

Thus, the first fastening flange (preferably on the side opposite its contact surface) can be provided in the area of a respective through-opening with a formation or a recess which has a section running at right angles to the intended guide axis, the through-opening then being arranged in this section, which allows drilling at right angles to the respective reference plane.

In another embodiment, in which the through-openings in question are not created by drilling, a through-opening in question can be formed by at least one tongue (or the opening created by this) punched into the first fastening flange and bent out of it at a predetermined angle to the contact surface of the first fastening flange, the inside of which facing the through-opening forms a guide surface for the fastening means in question. In such an embodiment, a tongue can be bent outwards or inwards away from the contact surface of the first fastening flange. In one embodiment, a through-opening in question is formed by two opposing, parallel tongues.

: BOJ3SHMEE££ 8»

•»•4 ·4 · ·

allele tongues are formed, one of which is bent outwards and the other inwards, whereby the opening formed by this lies between the two tongues.

In another embodiment, the first fastening flange can be formed in at least two layers, with a through-hole formed in a first layer being offset from a through-hole associated with it in the second layer in such a way that the two through-holes overlap, with their edges forming the guide for the connecting means to be driven through them.

In a connector according to the invention, the second fastening flange of which is angled at right angles to the first fastening flange, it can also be extremely useful not only to increase the tear-out strength of the connecting means to be driven through the first fastening flange into the beam to be connected, as already discussed above, but also to increase the dimensional stability of the angle connector if the second fastening flange has at least one through-opening which forms a forced guide for the connecting means to be driven through it, the central axis of which forms a guide axis for the connecting means passing through the first fastening flange, the first fastening flange having a through-opening arranged symmetrically thereto at the entry point of this central axis, through which the connecting means in question can enter from the component into the beam to be connected.

Preferred embodiments of the present invention are described in the subclaims.

: BOBEfMEPfS Si

The invention is explained in more detail below using exemplary embodiments with reference to a drawing. It shows:

Fig. 1 is a plan view of the contact surface of the first fastening flange of a connector according to the invention designed as an angle connector, seen in the direction of arrow I in Fig. 2;

Fig. 2 is a plan view of the connector according to Fig. 1, seen in the direction of arrow II in Fig. 1, -

Fig. 3 is a side view of the connector according to Figs. 1 and 2, seen in the direction of arrow III in Fig. 1;

Fig. 4 is a reduced representation of the connector according to Figs. 1 to 3 in comparison to Figs. 1 to 3 in a representation according to Fig. 3 in the assembled state in a side view of a beam connected at the front to a transverse beam in the direction of arrow IV in Fig. 5;

Fig. 5 is a plan view of the illustration according to Fig. 4, seen in the direction of arrow V in Fig. 4 ;

Fig. 6 is an enlarged view compared to Fig. 5, but essentially corresponding to it, using a connector slightly modified compared to Figs. 1 to 5;

- 10 -

Fig. 7 shows the connector according to Fig. 6 in a representation according to Fig. 1;

Fig. 8 is a view according to Fig. 1 of a connector with both fastening flanges aligned with each other;

Fig. 9 is a view of the connector according to Fig. 1, viewed in the direction of arrow IX in Fig. 8;

Fig. 10 is a side view of the connector according to Figs. 8 and 9, seen in the direction of arrow X in Fig. 8;

Fig. 11 is a representation according to Fig. 4, in which the connector according to Figs. 8 to 10 connects a beam to be connected at the front to a support;

Fig. 12 is a side view of the representation according to Fig. 11, seen in the direction of arrow XII in Fig. 11;

Fig. 13-18 representations of a section of the first fastening flange with a through-opening designed according to the invention in different configurations; and

Fig. 19 Connectors according to the invention in the form of angle connectors with different designs of their first fastening flange.

&idigr; BCHfiHDÄEft.fk
»· * · * ·· ··

- 11 -

Fig. 1 to 3 show in different views a connector, designated as a whole with 1, consisting of an integral steel sheet section for the concealed front connection of a first beam 2 made of wood (see Fig. 4, 5) to a second beam 3 running transversely to it. The connector 1 is formed from a rectangular sheet metal section and consists of a first fastening flange 4 to be placed on the front side 2' of the first beam 1 and a second fastening flange 5 extending away from it at an angle of 90°, which is to be placed on an outer side 3' of the second beam 3.

Both fastening flanges 4, 5 are each provided with through-openings 6 and 7, respectively, through which, in the respective installation state (see Fig. 4, 5), an elongated connecting means 8 in the form of a nail (if necessary also in the form of a suitable screw or a suitable dowel) is to be driven from the outside into the beam 2 to be connected at the front or the beam 3 running transversely to it.

Such an angle connector is known for other applications and could in principle also be used for the connection provided here if the beam 2 to be connected at the front is a relatively light beam or if the beam 2 to be connected at the front is not subject to high loads. The present (angle) connector 1 differs from the known connector essentially in the design of its through holes 6 in the first fastening flange 4. These are designed in such a way that they each form an oblique forced guide for the connecting means 8 to be driven through them, the central axis 9 of which forms a guide axis for the respective connecting means 8 is not at right angles to the first fastening

• BOBEHNäEBLT &,
··> *· ·· ·· """»·«&tgr;»"

- 12 -

stator flange 4 or its contact surface 4' on the front side 2' of the beam 2, but runs diagonally thereto and thus to the longitudinal axis 10 of the beam 2 to be connected at the front, so that the nails provided as connecting means 8 each run correspondingly diagonally to the fibers of the beam 2 to be connected at the front, as can be seen by way of example from Fig. 4 and 5. It is assumed (and accordingly prescribed) that nails are used as connecting means 8, the shaft diameter of which is equal to the smallest clear opening width of the through openings 6 (or only slightly smaller than this), so that they can exert a corresponding constraining effect on the connecting means 8.

This can be achieved in a variety of ways. For example, the through-holes 6 in the first fastening flange 4 provided for such an oblique nailing can be designed as corresponding holes with a central axis 9 running at an angle to the first fastening flange 4 or its contact surface 4', as shown in Fig. 13, in which - as in Figs. 14 to 18 - a section of the first fastening flange 4 in the area of a through-hole 6 is shown in section, and for the sake of greater clarity a nail 8, the shaft diameter d of which is essentially equal to the diameter D of the through-hole 6, is shown in its state of being driven in by force through the latter.

Since the introduction of through holes 6, the central axis 9 of which does not run at right angles to the first fastening flange 4, but at an angle to it, i.e. forms an acute angle a with its contact surface 4', is difficult in terms of production technology, according to the invention in the area of these through holes

: &Bgr;&Ogr;&Egr;&EEgr;&Mgr;&Egr;&Kgr;&iacgr;&

- 13 -

In the through holes 6, measures must be provided to ensure vertical drilling to the entry plane of the drill in the first fastening flange 4 and yet an oblique course of the through hole 6 to the first fastening flange 4.

Thus, in the embodiments according to Fig. 14 a and b, a recess 11 is formed in the outside 4'' of the first fastening flange 4 in the area of a through hole 6 by appropriate rolling or milling, which recess has a section 12 running at right angles to the center axis 9 of the through hole 6 provided (i.e. at an angle to the contact surface 4'), in which a through hole 6 is arranged so that it can be drilled without any problems. Such a design is possible with connectors 1 whose wall thickness s is so great that the wall thickness remaining in the area of the recesses 11 is at least a few millimeters.

Fig. 14 c shows a similar design in which, in the area of the through-openings 6, instead of a recess 11, a formation 13 has been made which forms a surface 14 on the outside 4'' of the first fastening flange 4 that runs at right angles to the central axis 9, through which the corresponding bore can be made without any problem.

Fig. 15 a shows a design in which the lower edge section of the first fastening flange 4 of the connector 1 has been bent outwards away from the contact surface 4' in such a way that a surface 14 is created which runs at right angles to the central axis 9 of the through-hole 6 to be made there, in which the corresponding hole can be made without any problems. The variant according to Fig. 15 b differs from this only in that the free edge section of the

i ROBHNiERt ä ßOES&ltikT

- 14 -

bent section is placed flat against the outer side 4'' of the first fastening flange 4.

Fig. 16 shows several embodiments that basically correspond to the design according to Fig. 14 c, in which the first fastening flange 4 is provided with a formation 13 in the area of a through-opening 6 designed as a bore, which forms a surface 14 running at right angles to the central axis 9 of the through-bore 6 and is also suitable for connectors 1 whose wall thickness s is relatively small. Such a formation 13 can be directed only towards the outside of the first fastening flange according to Fig. 16 a and b, or can extend to both sides of the first fastening flange 4 according to Fig. 16 c.

Fig. 17 shows a variant in which the through holes 6 of the first fastening flange 4 intended for diagonal nailing are each formed by at least one tongue 15 punched into it and bent out of it at a predetermined angle, the inside 15' of which forms a guide surface for the relevant connecting means 8. Figs. 17 a1 and a2 show a first design with only one tongue 15 which is bent outwards from the plane of the first fastening flange 4 towards its outside 4'', Fig. 17 a1 showing a middle section in the area of a correspondingly designed through hole 6 of the first fastening flange 4 in the direction of the section line A2-A2 in Fig. 17 a2 and Fig. 17 a1 showing a top view of the relevant section of the first fastening flange 4 in the direction of the arrow A1 in Fig. 17 a1.

The design according to Fig. 17 b differs from this in that the tongue 15 protrudes from the plane of the first fastening

- 15 -

ing flange 4 is bent inwards towards its contact surface 4' (and penetrates into the front side 2' of the beam 2 to be connected when the connection is created), while in the design according to Fig. 17 c there are two opposing, parallel tongues 15, 15, of which one tongue 15 is bent outwards and the other inwards in order to create a through-opening 6 with a positive guide for the nail 8 to be driven in.

Fig. 18 shows a design in which the connector 1 (at least its first fastening flange 4) is designed in multiple layers, namely in two layers in the design according to Fig. 18 a and in three layers in the design according to Fig. 18 b. In this case, a hole made in a layer 4.1 is offset from the hole assigned to it in the adjacent layer 4.2 in such a way that the two holes overlap, with their edges forming the forced guide for the connecting means 8.

Fig. 6 shows a representation (enlarged compared to Fig. 4) according to Fig. 4 using an angle connector 1 according to Fig. 7, which is reproduced there in a representation according to Fig. 1, whereby the second fastening flange 5 also has (at least) one through-opening 7, which forms a forced guide for the connecting means 8 to be driven through it, the central axis 9 of which passes obliquely through the first fastening flange 4, whereby the first fastening flange 4 has at the entry point of the central axis 9 a symmetrically arranged through-opening 6', designed as an elongated hole, through which the connecting means 8 can enter from the beam 3 into the beam 2 to be connected at the front. Quite apart from the fact that such an oblique nailing between the second fastening flange 5 and the front

: Boistitfaai *s» &dgr;&ogr;&ohacgr;&ohacgr;&igr;&tgr;

- 16 -

beam 2 to be connected contributes to a positive influence on the connection strength, it counteracts - in addition to the ribs 16 provided between the two fastening flanges 4, 5 - a bending of the connector 1 under heavy load of the beam 2.

Fig. 8 to 12 show representations corresponding to Fig. 1 to 5 of an angle connector 1 with fastening flanges 4, 5 aligned with one another for the essentially concealed frontal connection of a beam 2 to a support 3 running perpendicularly to it, wherein identical or corresponding parts are provided with the same reference numerals, so that a further explanation of the design and arrangement of this elongated connector 1 appears to be superfluous and reference can be made to the relevant explanations of the design according to Fig. 1 to 5. The only difference is that the second fastening flange 5, which is aligned with the first fastening flange 4, is not placed on the beam 3 due to the course of the latter, but is placed on an outside of the vertical beam 3 that is aligned with the front side 2' of the beam 2 to be connected at the front and is fastened there with connecting means 8, which is not shown in detail in Figs. 11 and 12. The connecting means 8, which are to be driven through the second fastening flange 5, can run at right angles to the fastening flange 5 because they do not run in the direction of the grain of the beam 3 but at right angles to it.

Fig. 19 finally shows embodiments of the connector 1 in which the first fastening flange 4 is provided on its longitudinal edges 17 between adjacent through-openings 6 with a recess 18, the shape of which

each corresponds to a tongue-shaped section 19 present between two adjacent recesses 18, 18, wherein these recesses 18 (and accordingly the tongue-shaped sections 19) are rectangular in the design according to Fig. 19 a, rounded in the corner areas in the design according to Fig. 19 b and trapezoidal in the design according to Fig. 19 c. By means of such a design, which can optionally extend over the entire length of the first fastening flange 4 to the second fastening flange 5 and optionally continue in it, the connectors 1 can be produced with a significantly reduced material expenditure compared to the embodiments discussed above if the corresponding cuts are punched out of a sheet metal in such a way that the material of the recesses 18 forms tongue-shaped sections 19 of an adjacent cut, which is used to form another connector 1.

The essential feature of the connector 1 according to the invention is that the through holes 6 of its first fastening flange 4 are at least partially designed in such a way that they form a forced guide for correspondingly adapted connecting means 8, by means of which it can be ensured that a connecting means 8 driven through such a through hole 6 does not run parallel but obliquely to the central axis of the beam 2 to be connected at the front, whereby the corresponding angle of inclination can lie in a vertical plane and/or in a horizontal plane. In this way, relatively simple and correspondingly inexpensive connectors can be used for essentially concealed front beam connections even for heavily loaded wooden structures, which are also particularly easy to install and do not require any frontal recess in the beam 2 to be connected.

Always install the first mounting flange
4 is fastened with nails 8 or the like to the front side 2' of the beam 2 to be connected, and that the second fastening flange 5 is then fastened to the corresponding component 3 at the intended mounting location using fastening means 8.

,j £M£R, B0EHMERT

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LIST OF REFERENCE SYMBOLS

1 connector

2 (first beam) 2' -· Front side (of 2)

3 (second bar) 3' - outside (of 3)

4 first mounting flange 4' - contact surface (of 4)

5 second mounting flange 4''- outside (of 4) 6.6' through holes (of 4)

7 through holes (of 5)

8 connecting elements

9 Center axis (of 6 or 7) (=guide axis for 8)

10 Longitudinal axis (of 2)

11 Recess

12 Section (of 11)

13 Forming (in 4)

14 Area (of 13)

15 Tongue 15' - Inside (of 15)

16 ribs

17 longitudinal edges (of 4)

18 Recess

19 Section (of 4)

Claims (13)

Expectations 1. Connector made of metal, in particular sheet metal, for the essentially concealed, front-side connection of a beam to a component, in particular a transversely running second beam, with a first fastening flange to be placed on the front side of the (first) beam to be connected and a second fastening flange extending away from this to be placed on the component, the two fastening flanges each being provided with through-openings through which an elongated connecting means such as in particular a nail can be driven into the beam or the component, characterized in that the through-openings (6) of the first fastening flange 561 Bremen: Hüllcrallce 32, D-282tW IJrcnicn
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Telex 244 058 I]UiML ii Munich: D-80801 Müni-lii-n &eegr; (OK ¹ )) 34 70 8<! &iacgr;&iacgr;) !W) 54 70 JU 524 282Tl)Au ₁ I Berlin-Brandenburg: n (03 31127 54 3(1 (&thetas; 31! 2 75 43 Dusseldorf: NdäleretwlSc 11-41)591 nüsstUliirf 'k'lcphon |O2 11)71 t Leipzig: Pllilipp-RosciuhalSlRilio 21 Kiel: Nicniaimswüg 133 Il «14 &idiag;&Igr;) K 40 75
[04 ^ &Pgr; K 40 77 Alicante: Plaza Cairo Sulcln 1-2 KS-03001 AIiL ¹ UIiK' «,« Tcleplitin »34-6·5>)« ui,-j .: BOEHMEfS* & BOEHIWERT (4) are at least partially designed in such a way that they form an oblique forced guide for the connecting means (8) to be driven through them, the central axis (9) of which does not run at right angles to the first fastening flange (4) or its contact surface (4'). 2. Connector according to claim 1, characterized in that the central axis (9) of the respective through openings (6) each runs at an angle (a) of at most approximately 60° to the first fastening flange (4) or its contact surface (4'). 3. Connector according to claim 2, characterized in that the central axis (9) of a respective through-opening (6) runs at an angle (α) of approximately 45° to the first fastening flange (4) or its contact surface {4'). 4. Connector according to one or more of the preceding claims, characterized in that the respective through-openings (6) are each formed in a manner known per se by a bore, the central axis (9) of which runs obliquely to the contact surface (4') of the first fastening flange (4). 5. Connector according to claim 4, characterized in that the first fastening flange (4) is provided in the region of a respective through-opening (6) with a shape (13) whose outer side (14) runs at least in one section at right angles to the central axis (9) of the through-opening (6). .: &Bgr;&Oacgr;&Egr;&EEgr;&Mgr;&Egr;&Kgr;&Ggr;& BOSSHKiEKT 6. Connector according to claim 4, characterized in that the first fastening flange (4) is provided in the region of a respective through-opening (6) with a recess (11) which has a section (12) with a surface extending at right angles to the central axis (9) of the through-bore (6) provided there. 7. Connector according to one or more of claims 1 to 3, characterized in that a respective through-opening (6) is formed by at least one tongue (15) punched into the first fastening flange (4) and bent out of it at a predetermined angle, the inner side (15') of which facing the through-opening (6) forms a guide surface for the respective connecting means (8). 8. Connector according to claim 7, characterized in that the tongue (15) is bent outwards away from the contact surface (4') of the first fastening flange (4). 9. Connector according to claim 7, characterized in that the tongue (15) is bent inwards away from the contact surface (4') of the first fastening flange (4). 10. Connector according to claim 8 and 9, characterized in that a respective through-opening (6) is formed by two mutually opposite, parallel tongues (15, 15), one of which is bent outwards and the other inwards. '& BOEHMEKT 11. Connector according to one or more of claims 1 to 3, characterized in that the first fastening flange (4) is formed in at least two layers, wherein a bore formed in a first layer (4.1) is offset from a bore associated with it in the second layer (4.2) in such a way that the two bores overlap, the edges of which form the guide for the connecting means (8). 12. Connector according to one or more of the preceding claims, wherein the second fastening flange is angled at a right angle to the first fastening flange, characterized in that the second fastening flange (5) has at least one through-opening (7) which forms a forced guide for the connecting means (8) to be driven through it, the central axis (9) of which passes through the first fastening flange (4), wherein the first fastening flange (4) has at the entry point of the central axis (9) a through-opening (6') arranged symmetrically to the central axis, through which the connecting means (8) can enter from the component (3) into the front side of the beam (2) to be connected. 13. Connector according to one or more of the preceding claims, characterized in that at least the first fastening flange (4) is provided on its longitudinal edges (17) between adjacent through-openings (6) with a recess (18), the shape of which corresponds to a tongue-shaped section remaining between two adjacent recesses (18, 18) (19) corresponds.