WO1993000490A1

WO1993000490A1 - Joint for joining several beams in a lattice frame and beam connector

Info

Publication number: WO1993000490A1
Application number: PCT/DE1992/000507
Authority: WO
Inventors: Johannes Geisen
Original assignee: Johannes Geisen
Priority date: 1991-06-21
Filing date: 1992-06-21
Publication date: 1993-01-07
Also published as: AU2013692A

Abstract

Joint for joining several beams (1, 1a) in a beam, especially bars in a framework, by means of connectors attached to the beam edge or end, having at least partially a basic body with one or more wall sections arranged obliquely in relation to the beam axis and/or side for supporting neighbouring similar connectors or other bodies within the joint at the wall sections. The superimposed wall sections are transfixed and held together by fasteners and each fastener is fitted and/or guided in an access channel which runs from the oblique wall section through the inside of the basic body to the outside of the joint.

Description

Node for connecting a plurality of carriers in a net-like _¬ ϊragwerk and carrier connection means

The invention relates to a node for connecting a plurality of beams in a structure, in particular for connecting bars in a framework, use being made of a connecting device which is attached to the edge or end of the beam and has a base body which relates to one or more the support axis and / or side has inclined wall sections for resting within the knot on wall sections of adjacent, similar connection devices or other bodies, and the superimposed wall sections are interspersed and held together by connecting elements. Furthermore, the invention relates to a carrier connection device which is particularly suitable for forming this node, by means of which a plurality of carriers of the supporting structure, in particular rods of a truss, are connected to the node; the connection device is based on a base body which has one or more wall sections which run obliquely with respect to the support axis and / or side and which are each penetrated by at least one access channel which runs in the base body and which is for receiving and for Intervention or engagement is formed by knot connection elements (eg screw elements).

Node and carrier connection devices of approximately this type are known from the previously published patents FR 2 143 644 and EP 0 031 804.

REPLACEMENT LEAF However, work structures have the disadvantage that there is no unimpeded, convenient access for efficient electrical or other mechanical screwing to the mutual screwing of the rod connections in the knot: If the screws are to be operated with longer tools, the base of an isosceles is an obstacle triangular connector or a raised, transverse to the rod axis connecting plate in the way. The width of the rod connecting element must generally be larger than the diameter of the actual rod. Conceptually, the connection parts are manufactured as separate knot-forming parts, which increases the assembly effort and the necessary screw connections. In addition, the walls of the connecting parts are so thin that these penetrating internal threads cannot be effective; this requires additional parts and assembly work for separate lock nuts in nodes.

The problem on which the invention is based is raised to create a node structure and / or a connection device for connecting a support to a node for net-like structures, which increases the ease of handling and assembly, reduces the overall weight of the structure, a compact design enables and the number of necessary connecting elements are minimized; At the same time, the customary flexibility in the design of different spatial structure shapes and movements should be maintained or increased.

To solve a problem, it is proposed according to the invention in the case of a node with the features mentioned at the outset that each connecting element is received in an access channel and / or leads, which runs from the inclined wall section inside the base body to the outside of the knot and consequently ends outside the knot area. This provides access to the connecting elements, for example screw elements, which can be of a slightly linear design and thus enables several carriers, for example rods, to be electrically screwed to one another. The access channels guided according to the invention result in a cavity which is accessible outside the node area and still in the area of the beam or rod end or edge, from which the connecting elements can be actuated manually, in particular mechanically, in particular by machine, in particular rotatably.

According to a further embodiment of the invention, two base bodies of two similar connection devices each lie with their inclined wall section together on an intermediate body, the wall section of which lies against the inclined walls and lies in a plane that corresponds to one side or the central axis of the support. in particular runs parallel to it or forms a common plane. These intermediate bodies can be, for example, spacers, clamping jaws or other supports (e.g. rods) with (internal thread) bores and without the specifically inclined wall sections which are connected to the structure node either at a fixed angle or in an articulated manner.

To solve the problem of the invention, a carrier connection device with the features mentioned at the outset is also proposed, which is characterized in that at least one access channel to the assigned wall section runs from a plane which corresponds to the side wall of the carrier to be connected, which is the node not closed turns. By equipping the connection device, the end of the beam or rod in the node connection area can be designed in such a way that it can be directly fastened to one another there with intersecting screw or other connecting bolt axes. Because of the abutting sloping wall sections, there is the possibility of orthogonally connecting two beams to one another. The need for separate, central node parts is eliminated. The connection can instead be brought about by direct inclined screwing of the supports in their respective end region. The carrier ends or edges have cavities which form channels for screw connections into which tools can be used to penetrate outside the knot area.

In a further concretization of this inventive concept, the wall sections arranged obliquely to the support side or axis or plane of symmetry are arranged prismatically with respect to one another at such an angle and thereby expanded that the access channel of the one wall section does not affect the other wall section when it extends in a straight line and therefore does not affect it is not disabled. According to this, a special design of the basic body in the form of a saddle roof is conceivable, from the apex (gable) of which a connecting sheep leads to the end face of the carrier. The two inclined wall sections forming the saddle roof are penetrated by the access channels and inclined at a sufficiently large angle to one another that the connecting element access channel unhindered after passing through a wall through the clear space to one which is common to a support side Level can run. According to another embodiment of the invention, the base body is made from a solid workpiece, which preferably has a cross section corresponding to the carrier to be connected, the access channels being able to be produced with little manufacturing outlay by means of bores which are oblique with respect to the base body symmetry axis.

The connecting device, in particular the base body thereof, is particularly advantageously formed in one piece with the body of the support or rod and / or is structurally integrated in such a way that a (one-piece) node connection end is formed for the support. This makes it possible to design flat and spatial structures without separate node elements, which are inexpensive with only one standard beam or rod type and can be screwed on mechanically and so quickly, for example, using conventional hexagon socket head cap screws according to the invention are mountable. A structural integration is also to be understood when the aforementioned massive workpiece is welded to the front end of the support, which for example has a hollow profile.

Within the scope of the invention, a variety of geometric shapes can be used for the base body. Rounded shapes or angular shapes with at least rounded corners have the advantage that intermediate bodies, for example diagonal struts, which are arranged between two connecting devices according to the invention, still have sufficient play for pivoting. Polygonal shapes with flat support sloping walls result in a form fit when they are in contact with correspondingly flat wall sections, so that such a node can absorb torques. Are four sloping support walls to each other like a pyramid arranged bluntly, six carriers can be connected to each other orthogonally in a node.

In order to increase the range of application of the connection device and the flexibility in the design of the supporting structures formed therewith, a further embodiment is proposed, according to which additional channels are provided which preferably penetrate the base body diametrically without an inclined support wall section affect. In particular, these additional channels are arranged in such a way that they penetrate a plane, preferably vertically, which is spanned, for example, by two access channels assigned to the inclined support wall sections. If a support, which is provided with such a connection device with both access and additional channels, is rotated through 90 ° about its associated longitudinal axis, it can then be clamped between two oblique wall sections, each with an adjacent, similar connection device, or pivoted about connecting bolts be articulated. To promote positive engagement options through wall sections of adjacent connection devices, it is expedient that the inclined wall section (s) with one or more recesses of various shapes, to accommodate, engage and / or clamp separate bodies (parts). serve, and / or are provided with corresponding or complementary surveys. If the access channels are guided to the area of the depression and provided with an internal thread there, a complementary intermediate body can be inserted into this depression and then fixed and adjusted by means of a screw element which meshes with the internal thread of the access channel. For example, the force exerted by the sprag is on Another intermediate body (rope or rod) can be set depending on the application.

So that spatially curved constructions can also be produced with single-layer structures, it is provided according to a particularly advantageous embodiment of the invention that the bearing surface of the sloping wall section runs at an oblique angle with respect to the sides of the base body and / or carrier not lying in the node area. If, for example, two immediately adjacent sloping wall sections form a common apex edge, this runs at an angle greater or less than 90 ° with respect to all other planes of symmetry or outer sides of the base body or carriers attached to it. It goes without saying that the longitudinal axis of the access channel and / or the connecting element need not necessarily run perpendicular to the contact surface of the oblique wall section penetrated by it or to the other side surfaces of the base body or carrier.

When using the invention in building construction (e.g. space structures, facades, sub-constructions, single-layer level and spatial constructions), the following advantages result in particular:

significantly fewer connection elements than conventional connection systems;

Suitability for direct support of the roof skin or glazing without additional purlin construction;

low tool costs through uncomplicated shaping; With just a few structural components, a large variety of structural designs can be realized in an extremely variable manner (in particular variable structural height due to articulated intermediate bodies as diagonals);

Weight savings by eliminating a central, separate node element (in a conventional MERO ball node structure, the central node elements can account for up to 20% of the total weight!)

low assembly effort due to few individual parts and electrical screw connection;

- innovative and aesthetic appearance.

Further features, designs and advantages on the basis of the invention result from the subclaims, the exemplary embodiments described below and the drawings. These show in:

1 is a perspective view of a node according to the invention in a framework with broken-off beams,

2 is a sectional view along the line II-II in Fig. 1,

3 and 4 each a modified knot within the scope of the invention, 5 and 6 a variant of a connection device in a sectional view approximately along line VV in FIG. 4,

Fig. 7a

7c shows a further modification of the carrier connecting device according to the invention in different positions,

8 shows a further variant of the knot according to the invention,

9 in an exploded, perspective representation two intermediate bodies between two connection devices,

Fig. 10

13 different variants for a knot according to the invention, each in a partially exploded perspective view,

14 and 15a each show a perspective view of different designs of the connection device or of its base body,

15b

15e each show a sectional view to illustrate different node or base body structures according to line A-A in FIG. 15a,

Fig. 16

18 analog sectional views of further node configurations Fig. 19

22, in each case in a partially exploded perspective view, further node designs,

23 is a top view of a schematic representation of the supporting structure formed with the configuration according to FIG. 22,

Fig. 24a

24c in an exploded, perspective representation different designs of the inclined wall section of the base body and the assigned intermediate body,

25 is a perspective, exploded view to illustrate the knot formation,

26 is a sectional view approximately along the line XXVI-XXVI in FIG. 25,

27 shows a perspective view of another one

Knot formation for a single-layer and spatially curved construction,

28 shows a perspective view of the main body of the connection device with the carrier broken off.

According to FIG. 1, eight beams 1, 1 a of a supporting structure or framework, not shown, run in a composite or knot together, which is formed by the base bodies 2, 2a of a respective connection device assigned to a carrier 1, la. The base bodies 2, 2a are structurally integrated with the respective carrier 1, la at the boundary line 3, for example by welding, or are made in one piece with this. The eight beams 1 can be subdivided into horizontal beams 1 and inclined diagonal beams 1 a. The base bodies 2 of the horizontal beams 1 have wall sections 4 which are inclined with respect to the boundary line 3 and which each abut a parallel wall section 5 of an adjacent base body 2a for a diagonal strut 1a. The parallel wall section 5 corresponds to the other longitudinal side of the base body 2a or of the carrier la insofar as it lies in one plane with this. The diagonal base bodies 2a differ from the horizontal base bodies 2 only in the way they are arranged in the knot area, in that, together with their diagonal supports la, they differ from the horizontal base bodies 2 or their horizontal supports 1 are rotated by 90 ° around the longitudinal axis.

In terms of their structural structure, however, the horizontal or diagonal base bodies 2, 2a can be constructed identically: They are each penetrated by an access channel 6, which begins on a longitudinal side 7 that does not face the node area, through the base body 2, 2a or at an oblique angle with respect to a central axis of symmetry or plane 8 of the support 1, la or base body 2, 2a and finally penetrates the support wall section 4 lying obliquely or diagonally to the longitudinal side 7, as can also be seen in FIG. 2. Because of the oblique course, the mouth of the access channel 6 has an elliptical cross section in the region of the longitudinal side 7; a modified access channel 6a (left side of FIG. 1) has right- cross-section. The access channels 6, 6a create laterally open cavities which are practically not obstructed by the node area, through which screw elements 9 and, if appropriate, associated nuts 10 can be pushed (cf. FIG. 2). As indicated by dashed lines, the heads of the screw elements 9 are provided with an internal hexagon profile 11 in cross section. The screw elements S serve to screw the base bodies 2, 2a to one another, the screw elements 9 for the horizontal beams 1 being arranged alternately with those for the diagonal beams 1a. So that the diagonal base bodies 2a rotated about their longitudinal axis by 90 ° with respect to the position of the horizontal base bodies 2 can be mounted stably in the node assembly, they are provided with (further) additional channels 12, each of which is opposite the one through the access channels 6 ¬ end horizontal plane ε are perpendicular and cross this. Both the access channels 6, 6a and the additional channels 12 can preferably be provided with effective internal threads 13 in the area of the adjacent wall sections 4 and parallel wall sections 5 due to the material thickness present, which have the complementary external threads 14 of the screw elements 9 Comb so that the need for a nut 10 is eliminated. Since the diagonal supports 1 a with their parallel wall sections 5 abut the respective sloping wall sections 4 of the horizontal base body 2 only in a frictional or frictional manner and delimit a central clear space 32 in the knot on the end face, it is conceivable to move this around to give the respective screw element 9 a pivoting movement 15 for setting the inclination with respect to a reference plane (cf. FIG. 1). 3 and 4 have the same structure as according to FIGS. 1 and 2, only the base bodies are shaped differently: according to FIG is flattened by an access channel 6 support wall section 4 such that it appears as a flattened disc ring 160. According to FIG. 4, the respective base bodies 2, 2a run approximately in the form of a saddle roof, the two outer roof surfaces each forming the sloping wall section 4. The corners 16, into which the gable edge between the two inclined wall sections 4 each end, are rounded or flattened like in the case of a half-hipped roof. As a result, the pivotability 15 of the diagonal struts la is considerably promoted compared to the embodiment according to FIGS. 1 and 2. Otherwise, the same reference numerals in FIGS. 3 and 4 denote corresponding elements in FIGS. 1 and 2.

5, the base body has only one for

Access channel 6, which runs in the center or axis of symmetry 8 and extends obliquely from the longitudinal side 7, which is parallel to the axis of symmetry 8, through the base body 2 to the associated support wall section 4 and passes through the latter, the outer surface of which is also inclined to Symmetry axis 8 runs. A screw can thus be inserted through the access channel entrance 17 and easily actuated therein by a tool, the screw head striking against the radially inwardly projecting stop shoulder 18. A (further) additional channel 12 - for example to form diagonal supports according to FIGS. 1-4 - crosses or passes through the access channel 6 vertically, running perpendicular to the plane of the drawing. The further, gable roof An inclined wall section 4a arranged like this is penetrated by a receiving channel 19, for example for screw elements, which ends at the access channel 6 or at the connecting element received therein. The receiving channel 19 serves to receive the connecting element end from an access channel of an adjacent base body or an adjacent connection device and, if necessary, to fix it via an internal thread 13, as can be seen, for example, in FIG. 2. On the other hand, the modification according to FIG. 6 is that the stop shoulder 18 is offset further away from the long side 7 or closer to the inclined wall section 4. As a result, a connecting element end received in the receiving channel 19 can still protrude into the cavity of the access channel 6. A further difference in FIG. 6 compared to FIG. 5 is that the gable edge 20 (FIG. 5) is replaced by a flattened gable cover surface 21.

A flattened gable top surface 21 also has the exemplary embodiment according to FIGS. 7a-7c. The base body 2 is essentially formed here as a housing-like hollow body with a flattened gable roof, the outer surfaces of the gable roof forming the support wall sections 4 for contact in the knot area (cf. FIGS. 1-4). The access channels 6 open into the longitudinal side 7 of the base body 2 and are formed therein essentially by the cavity thereof; In the example, the access channel exit 22, which enables the transition of a connecting element from the access channel 6 into a neighboring connection device, is produced by round bores which penetrate the inclined wall sections 4 and with the access channel entrance 17 in the longitudinal side wall 7 de Base 2 are aligned. The gable top surface 21 is especially for this purpose expedient to create a clear space in the node center in order to increase the application flexibility, for example pivotability. The base bodies 2 have a smaller cross section than the carriers 1, as seen in the longitudinal direction of the carriers 1, and are connected to them by means of a connecting part 23 which is shaped like a terrace.

The node structure according to FIG. 8 differs from that according to FIGS. 1-4 essentially in that the diagonal supports 1 a do not have a base body with oblique wall sections, as in the connection device according to the invention. Instead, two intermediate bodies 24 - each penetrated by screw elements 9 - are clamped between two inclined support wall sections 4 of two different base bodies. Each screw element 9 engages with an access channel 6 of a first base body 2 and a receiving channel 19 with an internal thread 13 of a second base body 2. As can be seen from FIG. 9, the intermediate bodies 24 can be designed, for example, as flat, flat plates with a mounting hole 25 in the end region. In FIG. 9 it is also indicated that between the two opposite support wall sections 4 of two different base bodies 2, a plurality of intermediate bodies 24 lying directly on or on top of one another, preferably in the form of a tab, can be held non-positively in access channels 6 by means of the screw elements 9 , if the diagonal supports 1 a connected to the intermediate bodies 24 are inclined to one another at a sufficiently large angle 26. For example, diagonal supports la can be realized which are orthogonal to one another. A further peculiarity in FIG. 4 is that two access channel outputs 22 are assigned to each access channel 6. The one achieved The advantage is that the intermediate bodies or tabs 24 can be mounted on an access channel exit 22 by means of their aligned mounting bores 25 and do not need to overlap one another. The area of the access channel entrance 17 is sufficiently large and so with the. Outputs 22 congruent, so that they are easily accessible.

According to FIG. 10, the diagonal support la has a polygonal, for example hollow, instead of the round profile (FIG. 9)

Profile on. Basically, it is within the scope of the invention to use round or polygonal cross-sectional profiles for the carriers. According to FIG. 10 there is also the peculiarity that the intermediate body 24 attached to the diagonal support la is formed in two parts, namely with two separate tab parts 24a, 24b, each with a mounting hole between the exits 22 of the access channels 6. Further mounting options for the design of the knot result the person skilled in the art by using, for example, an angle iron 27 or a spacer 28. The spacing of the mounting bores 25 in the angle iron 27 is such that when they rest on the inclined support wall sections 4, these cut with the outputs 22 of the access channel 6 can escape.

A special design of the round body 2 of the connecting device according to the invention can be seen in FIG. 11: The base body 2 is divided into two parts in a cavity to form a first access channel with entrance 17a and in a mere angle profile within which the access channel with entrance direction 17b is formed. The hollow body section of the base body 2 creates the connection to the connected carrier 1 via the boundary line 3. The idea of the mere angular profile as an essential shape for the base body 2 is realized even more consistently according to FIG. 12: the angle profiles as the base body 2 are connected by shafts 29 to the end face of the respectively associated carrier 1 or. whose terrace-like connector 23 connected. The access channels 6 with entrance 17 and exit 22 are practically formed by the clear space between the legs of the basic body angle profile 2. In this embodiment, a particularly spacious and therefore comfortable access for the screw connection 9, 10 for connecting the carrier 1 with an angular cross-section and the carrier la with a round cross-section and lamellar intermediate body 24 is achieved.

According to FIG. 13, six supports 1, each perpendicular to one another, span the three dimensions of the space as orthogonal axes. For this purpose, the connection devices are formed with truncated pyramid-shaped base bodies 2, whereby a truncated pyramid surface 30 is formed at the end. According to the illustrated embodiment, up to six supports can be screwed to one another by means of screw elements 9 via their truncated pyramid devices. Of course, the angle of 90 ° shown in FIG. 13 is not mandatory;

Carriers are mounted on one another at an oblique angle if the support wall sections 4 forming pyramid surfaces are inclined to one another, for example, asymmetrically.

In single-layer constructions, the connecting node between the beams must absorb moments. For this purpose, the connection device according to FIG. 14 is suitable, the base body 2 of which is transverse to its longitudinal axis or central symmetry axis 8 has an elongated rectangular profile. In this way, overall height is obtained, so that two screw elements 9 with their axes aligned one above the other can be inserted into correspondingly superimposed access channels 6. This allows the absorption or compensation of torques to be improved by the half taking up pressure above the line of symmetry 8, for example, while the screw connection in the half of the base body 2 below the line of symmetry 8 is subjected to tension.

FIG. 15a shows a simple basic design of the connection device according to the invention with the base body 2 shown broken off, which can be integrated in one piece into a, for example, a square support. Such a carrier with a connection end specific to the invention can be produced in a standardized and cost-effective manner in automated workpiece processing centers. FIG. 15b shows how a node for a supporting structure can be completely assembled with four base bodies 2 of the connecting device according to the invention: each base body 2 is penetrated by an access channel 6 and a receiving channel 19 with an internal thread 13. Each screw or connection element is sunk in an access channel 6 up to the stop shoulder 18, so that its foot end penetrates into the receiving channel 19 in the directly opposite support wall section 4, in engagement with the internal thread there of an adjacent base body 2 . In this case, the orthogonally extending additional channels 12 have no function, provided the base body is not rotated about its own axis. According to FIG. 15c, the base body 2 can have access channels 6 crossing each other, the additional channel 12 (perpendicular to the plane of the drawing) passing through the crossing point, for example for the purpose of recording Swivel axis bolt for swiveling diagonal supports. The oblique wall sections 4 of the same type as the base body 2 have the intermediate body 24 adjacent in FIG. 15c, in which two receiving channels 19, each with an internal thread 13, have the same shape as the access channels 6 in FIG

Basic body run. As a result, the screw element 9 screwed through the access channel 6 into the base body 2 with the internal thread 10 on its foot element can come into engagement with the external thread 13 of the receiving channel 19 aligned therewith in the immediately adjacent intermediate body 24. Furthermore, the intermediate body 24 can - to increase the design flexibility - also traversed by additional channels 12, which run in the same way as those in the base body 2 of the connecting device according to the invention. According to FIG. 15d, the base body 2 has the

Connection device only a single access channel 6 with the function as a screw channel, to which a receiving channel 19 with an internal thread 13 is arranged in the second inclined support wall section. In contrast to FIG. 15d, according to FIG. 15e, the access channel 6 in the base body 2 is crossed by a receiving channel 19 each with an internal thread 13. This results in additional screw-in depth. The internal threads 13 are formed within the essentially solid base body 2, for which there is naturally enough material available.

16-18 show node structures, in each of which a plurality of intermediate bodies 24 are clamped between the base bodies 2 of connecting devices according to the invention. According to FIGS. 16 and 17, the ends of the carrier 1, with which the base bodies 2 are integral, and the carrier 1 a, with which the intermediate bodies 24 are integral are, in particular with the end faces positively screwed to one another, that is to say not articulately movable against one another, moments can therefore be recorded. FIGS. 16 and 17 also show that the supports 1 and 1 a can also be closed at angles other than 90 °, that is to say at an oblique angle, at the nodes. The intermediate bodies 24 are each completely penetrated by a screw element 9, which is in engagement with the internal thread of a receiving channel 19 in the base body 2. According to FIG. 18, four intermediate bodies 24 are mounted between two base bodies 2 and penetrated by screw elements 9, which can be actuated via the access channels 6. Two of the four intermediate bodies per 24 are designed as screw-through spacer sleeves with the lug-facing tab part and adjoining sleeve part in which the external thread ends of

Tie rods 31 are screwed in. The remaining two spacers 24 are designed as disk rings, each of which is penetrated by a screw element 9 in the access channel 6 or receiving channel 19. In the center of the node of the wall sections 4, the base body 2 and the

End faces of the intermediate body 24 bounded by a clear space 32, which allows pivoting of the spacer sleeves with tie rods screwed into it (perpendicular to the plane of the drawing).

In FIG. 19, the four base bodies 2 are shown in perspective, roughly according to FIG. 1, wherein grooves 33 are additionally formed in the inclined support wall sections. These are used to hold strand-shaped undervoltage elements, for example cables 340. Otherwise the screw connection of the base body 2 of the connection devices is approximately the same as in the cross-sectional illustration according to FIG. 18.

SPARE BLADE FIGS. 20 and 21 show supporting structure nodes, the connecting devices of which, owing to the rounded corners 16 on their respective base bodies 2, allow the horizontal supports 1 or the diagonal supports 1 a to be pivoted 15. The horizontal and diagonal supports 1 and 1 a each have the same base body 2 for realizing a connection device, but are - according to FIGS. 1 - 4 - arranged with rotational positions alternately offset by 90 °. The sloping support

Wall sections 4 are formed approximately as disk rings 160.

The designs according to FIGS. 20 and 21 also have the special feature that - as it were to "blindly cover" node areas to which neither a horizontal support nor a diagonal support is to be connected - intermediate elements 34 are provided according to the invention, which are either elongated cuboid ( 20) or cube-like-cylindrical (FIG. 21). They have the same physical structure as the base bodies of the connection devices, but with the difference that carriers are not connected. For example, the intermediate elements 34 have support wall sections 4, which run obliquely with respect to their outer side and / or the plane of symmetry, and access channels 6 and receiving channels 19 used for screwing, for example.

According to FIG. 22, an intermediate body 24 with a cross-sectional cross profile (four legs 35 arranged in a cross) is mounted, in particular screwed, between the connection devices or base bodies 2 of four supports 1. Each leg is aligned with at least two in one the row of mounting holes 25 located one below the other, which can be arranged in the node so that screw elements 9 can pass through them in the through channel 6, the ends of the screw elements 9 meshing with the internal threads of receiving channels 19 lying in one plane with the access channels . The cross-profile legs 35 can be encompassed in the region of their mounting holes 25 between double brackets 36, to which pull cables 31a are attached. In a further node of the same level, the base bodies 2 are spaced apart by spacer disks 28. In FIG. 23 the supporting structure structure that can be created with the node configurations shown in FIG. 22 is indicated schematically.

According to FIGS. 24a-24c, the oblique support wall sections 4 of the base body 2 are each recessed with grooves 33. These grooves are widened in their transverse direction by additional recesses 37, which are either a cylindrical inner surface (FIG. 24a), a cylindrical hole which is inserted into a cavity, e.g. 24b), or in the form of a spherical blind hole (FIG. 24c). In particular, the additional recess 37 designed as a continuous cylindrical bore according to FIG. 24b is easy to produce. For a form-fitting intervention With the additional recesses, correspondingly complementarily shaped internal thread sleeves 38 are provided, into which the external thread ends of tension rods 31 can be screwed in. The advantage of particularly fine adjustability is thus achieved.

According to FIG. 25, tensioning or undervoltage elements, for example narrow rods or ropes 31 / 31a, can be inserted in a form-fitting and / or non-positive or frictional manner in grooves or grooves 33 complementary thereto. These are included a circular additional recess 37, widening in its transverse direction, into which a complementary clamping disk 39 can be inserted for abutment against a stop shoulder 40 within the base body 2. The stop shoulder 40 forms a disc-shaped, radial extension of a screw channel 41 opening into the additional recess for a threaded pin 42 (cf. FIG. 26). With the threaded pin 42, an extremely fine adjustment of the clamping force can be brought about, which the clamping disk 39 exerts via its groove 43 on the strand intermediate body 31 / 31a.

FIG. 27 shows the possibility within the scope of the invention of creating a single-layer, spatially curved support structure by means of the supports 1 connected according to the invention and the associated one-piece connecting base body 2. According to FIG. 28, this is based on the fact that the inclined support wall sections 4 not only have an "oblique" face with respect to the base body longitudinal sides 7, but also the base body top and bottom sides 44, 45, which run at right angles to the longitudinal sides 7 , form an inclined plane. Thus, the support wall surface 4 forms a larger or smaller skew angle s with the base body top and bottom sides 44 and 45, respectively. If the total of eight support wall sections 4 lie against one another according to FIG. 27, the top and bottom surfaces 44, 45 of the carrier 1 no longer run in a common plane; rather, a spatial, three-dimensional structure is spanned. In addition, the axis 47 of a screw element (not shown) can also be oriented at an oblique angle to the contact surface of the wall section 4.

Claims

PATENT CLAIMS

1. Node for connecting a plurality of beams (1, la) in a supporting structure, in particular bars in a framework, by means of connection devices which are in each case attached to the edge or end of the beam and which at least partially have a base body (2, 2a) with or a plurality of wall sections (4) which are inclined with respect to its or the support axis (8) and / or side (7) for support within the knot on wall sections (4, 5, 44, 45) of adjacent connecting devices or other bodies (24 ) have, wherein the superimposed wall sections (4, 5, 44, 45) are interspersed and held together by connecting elements (9), characterized in that each

Connection element (9) is received and / or guided in an access channel (6, 6a) which extends from the oblique wall section (4) outside the basic body (2) to outside the node.

2. Knot according to claim 1, characterized in that two base bodies (2) each rest with their inclined wall section (4) together on at least one intermediate body (2a, 24), preferably at least one in the knot area adjacent wall section (5) lies in a plane corresponding to the side or axis of symmetry of an associated support (la).

3. Knot according to claim 2, characterized in that the intermediate body (2a, 24) - of the or with the

Basic bodies (2) common connecting elements (9) penetrated - is positively and / or non-positively clamped.

4. Knot according to claim 2, characterized in that the intermediate body (2a, 24) - of the or with the base bodies (2) common connecting elements (9) - rotatable or pivotable (15) and / or articulated on the one or more connecting elements (9) is mounted.

5. Knot according to one of claims 2 or 3, characterized ge indicates that the intermediate body (24) as a sleeve (38), washer (28) or web or as a clamping jaw (39) for a further, adjacent intermediate body ( 24; 31, 31a) is formed.

6. Knot according to one of claims 2 to 5, characterized in that the intermediate body (24) has sloping wall sections (4) of the same type or complementary to those of the basic body (2) which are connected to the access channels (6, 6a) are aligned receiving channels (19), which preferably have internal threads (13).

7. Knot according to one of claims 2 to 6, characterized in that the intermediate body (24) is designed as an undervoltage element, for example rope (31a) or rod (31).

8. Knot according to one of claims 2 to 7, characterized ge indicates that the intermediate body (24) in several pieces (36, 38, 39), in particular with additional spacers (28), is formed.

9. Knot according to one of claims 2 to 8, characterized ge indicates that the intermediate body in cross section has a cross profile (Fig. 22) with cross-shaped legs (35) to which the oblique wall sections (4) of the base body ( 2) concern.

10.Node according to claim 9, characterized in that the cross legs (35) each have a bore (25) which are aligned with the access channels (6) in the base body (2).

11. Node according to one of the preceding claims, characterized in that a plurality of connection devices with diagonally adjacent sloping wall sections (4) are connected through these common connecting elements (9) (Fig. 15b).

12. Beam connection device for the formation of a knot, in particular according to one of the preceding claims, via which a plurality of beams (1, la) of a structure, in particular rods of a framework, are connected to one

Base body (2, 2a) which has one or more wall sections (4, 4a) which run obliquely with respect to the base body and / or support axis (8) and / or side (7) for support in the node area, each of which has at least one in Main body (2, 2a) extending access channel (6, 6a) is penetrated, which is designed for receiving and for engaging or engaging behind by node connecting elements (9), characterized in that at least one access channel (6, 6a) extends to the associated wall section (4) from a plane which corresponds to the side wall (7) of the base body (2, 2a) and / or the support (la) to be connected, which does not face the node.

13. Connection device according to claim 12, characterized by two mutually at such an angle (46) angeord¬ nete and / or such extending wall sections (4) and / or by there positioned access channels (17, 6) that the access channel (6, 17) of one wall section (4x) does not affect the other wall section (4y) in the case of a straight extension.

14. Connection device according to claim 12 or 13, characterized in that the base body (2, 2a) is made from a solid workpiece, preferably with a cross section corresponding to the carrier (1, la), the access channels (6 , 6a) are realized by bores that are oblique with respect to the base body symmetry axis (8) or side (7).

15. Connection device according to one of the preceding claims, characterized in that the access channel or channels (6, 6a) through the base body (2, 2a) diagonally and / or obliquely to its central or symmetrical plane (8) are guided and / or end on a side (7) of the base body (2, 2a) not facing the node.

16. Connection device according to one of the preceding claims, characterized in that for the connecting element or the access channels (6, 6a) with an internal thread (13) preferably in the region of the wall section (4) and / or cross-sectional constrictions or extensions for the formation of stop surfaces (18) are provided, which preferably face the starting plane corresponding to the support (1, la).

17. Connection device according to one of the preceding claims, characterized by a one-piece design and / or structural integration with the support body in such a way that a node connection end is formed for the support.

18. Connection device according to one of the preceding claims, characterized in that the base body (2, 2a) has in particular one or more of the following shapes:

a) round, oval and / or elliptical shape, optionally with flattened support wall sections (4, 160, 21), b) single or polygonal shape, in particular cube or cuboid basic shape, one or more

Sloping sides, prismatic to each other and / or inclined to a plane of symmetry (8), c) single or polygonal shape with rounded corners (16), d) roof-shaped hollow body, e) pyramid (truncated 30),

in each case for attachment to a carrier face or longitudinal side.

19. Connection device according to claim 18, characterized in that the flattened wall sections have the disk ring shape (160) surrounding the access channels.

20. Connection device according to one of the preceding claims, characterized in that the access channels (6, 6a) of different support walls (4) with their - If necessary, extend and / or cross the elongated longitudinal axes.

21. Connection device according to one of the preceding claims, characterized by one or more additional channels (12) which diametrically penetrate or cross the base body (2, 2a) without affecting an inclined support wall section (4) .

22. Connection device according to claim 21, characterized in that the additional channel or channels (12) preferably vertically penetrate a plane which is assigned by one or more access channels (6, 6a.) Assigned to the inclined support wall sections (4) ) is formed.

23. Connection device according to claim 21 or 22, characterized in that several additional channels (12), preferably with an internally threaded bore (13), lie in a common alignment, which is crossed by one or more access channels (6, 6a).

24. Connecting device according to one of the preceding arrival ^• claims, characterized in that the or the sloping bearing-wall sections (4) with one or more tongue, groove, (semi-) cylindrical and / or circular (ring) like

Depressions (33, 37), for example for receiving, engaging and / or clamping separate bodies (parts) (24, 28) and / or with corresponding or complementary elevations.

25. Connection device according to claim 24, characterized in that the access channel or channels (6, 6a, 41) the respectively assigned inclined wall section (4, 4a) in the loading pass through the recess (33, 37) and are preferably provided with an internal thread (13, 130).

26. Connection device according to one of the preceding claims, characterized in that the bearing surface of the sloping wall section (4) with respect to the bottom, cover, edge or side sections not lying in the knot area (5, 7, 44, 45) and / or the plane of symmetry (8) of the base body (2) and / or carrier (1), and / or that connecting element (9) passing through the oblique wall section (4) obliquely or obliquely with respect to the wall section bearing surface ( s) run.

27. Connection device according to one of the preceding claims, characterized in that the base body (2) for connecting element ends has one or more sack-like receiving channels (19), preferably as internal thread bores (13), which have the oblique support wall sections (4th ) and if necessary cross the access channels (6, 6a).

28. intermediate element (34) for the formation of a knot, in particular according to one of the preceding claims, via which a plurality of beams (1, la) of a supporting structure, in particular rods of a framework, are connected to a base body (2, 2a), which has one or more wall sections (4, 4a) which run obliquely with respect to its axis (8) and / or side (7) for support in the node area, each of which has at least one access channel (6) running in the base body (2) , 6a), which is designed for receiving and for engaging or engaging through knot connecting elements (9), characterized in that at least one access channel (6, 6a) for the associated wall section (4, 4a) extends from a plane which corresponds to the side wall (7) of the base body (2) not facing the node.

29. Intermediate element according to claim 28, characterized by an embodiment corresponding to the connecting device according to one of the preceding claims, but in each case without a connected carrier element.