WO2017140301A1

WO2017140301A1 - Rod-shaped assembly having an eversion, method for producing the rod-shaped assembly, and use of a jacket composed of a woven-fabric layer to form the eversion

Info

Publication number: WO2017140301A1
Application number: PCT/DE2017/100110
Authority: WO
Inventors: Stefan Oginski
Original assignee: Stefan Oginski
Priority date: 2016-02-15
Filing date: 2017-02-13
Publication date: 2017-08-24
Also published as: DE112017000823A5; DE102016102643B3

Abstract

The invention relates to a rod-shaped assembly (1a; 1b), comprising a jacket (2a; 2b), at least one inner end piece (3a; 3b), and at least one outer end piece (4a; 4b); wherein the jacket (2a; 2b) consists of at least one woven-fabric layer; wherein the inner end piece (3a; 3b) and the outer end piece (4a; 4b) are connected to an end (2a.3; 2b.3) of the jacket (2a; 2b) in that the end of the jacket has at least one U-shaped inward eversion (2a.4; 2b.4) consisting of the one or more woven-fabric layers and, by means of an inner surface (2.7) and an outer surface, which each lie in the region of the eversion (2a.4; 2b.4), is brought in contact with a geometrically corresponding contact surface (3.3, 4a.3; 4b.3) of each end piece (3a, 4a; 3b, 4b). The inner end piece (3a; 3b) and the outer end piece (4a; 4b) can be fastened to the end (2a.3; 2b.3) of the jacket (2a; 2b) in such a way that the inner end piece and the outer end piece cannot be moved relative to the end (2a.3; 2b.3) of the jacket (2a; 2b). The invention further relates to a method for producing a rod-shaped assembly and to the use of the end of the jacket to form such an eversion for such a rod-shaped assembly.

Description

Rod-shaped assembly with Umkrempelung and method for producing the rod-shaped assembly and use of a shell of fabric layer to form the Umkrempelung

Technical area

The present invention relates to a rod-shaped assembly having a jacket made of fiber-reinforced plastic and has at least one end of end pieces, which allow the connection of the rod-shaped assembly with other components. A connection between the jacket and the end pieces is designed so that tensile and compressive forces can be transmitted very reliable. Such a rod-shaped assembly should be used in many ways, for example in mechanical engineering or in vehicle construction or on buildings. In particular, applications in buildings are desired, for example, for supporting ceilings or walls or for the construction of space frameworks, for example for cantilevered roof structures. The present invention particularly relates to a rod-shaped assembly with individual features of claim 1 and a method for producing the rod-shaped assembly with individual features of the independent method claim. background

There are already known pipe rods which can be connected at the ends with other components, for. from the patent DE 901 955 B. The tube rod described therein comprises a tube, in particular a steel tube, which is connected at the ends, each with a conically shaped end piece, in particular welded. The end pieces each have a through hole in which a threaded bolt is inserted so that its shaft facing outward. In each case a key sleeve is placed on the shafts of the two threaded bolts. The threaded bolts have in their shafts in each case a transverse bore extending transversely to the longitudinal axis, in each of which a driver pin is inserted in such a way that it protrudes with both ends out of the shank of the threaded bolt. The ends of the driving pin engage in such a way in two slots of the key sleeve, that the threaded bolt is rotationally connected to the key sleeve, but can be moved in the direction of the longitudinal axis of the pipe rod. To mount the pipe rod to another component, the threaded bolt is screwed by turning the key sleeve in a matching thread of the other component until the head of the

Threaded bolt rests on the inside of the tail, and then advantageously with a suitable

Tightening torque tightened.

The fact that the threaded bolts can be moved axially, they can be fully or at least partially inserted into the end pieces, so that the pipe rod can be inserted and fastened between two components that are already mounted in the distance corresponding to the length of the pipe bar , This may be the case, for example, when a pipe rod is to be replaced in an already constructed space frame.

By DE 27 36 635 C2, another pipe rod has become known which has no driving pins. Instead, the threaded bolt and the sleeves each have non-circular geometries, through which both parts are arranged rotationally but axially displaceable relative to each other. Higher tightening torques can be transmitted by the non-circular geometries than via driving pins. In addition, in this pipe rod, the key sleeve is enlarged in the radial direction and has on the outer circumference on a collar which forms the clamping surface with the tail when tightening the threaded bolt, so that the clamping surface has the greatest possible distance from the central threaded bolt. Due to the higher tightening torque and the greater distance between the clamping surface, this pipe rod can be subjected to greater stress on bending and torsion than the previously described pipe rod.

Further, the patent DE 40 19 243 Cl describes a tubular truss rod which can be screwed by means of a driving sleeve to a junction piece, wherein the screw head can engage in an annular groove formed by the rod.

Fiber-reinforced plastics, in particular carbon-fiber-reinforced plastic (CFRP), offer considerable potential for weight savings compared to the steel construction material frequently used. At the moment, there are already plates and simple ones Profiles, for example tubes or square cross-sections, commercially available from fiber-reinforced plastic. The connection of these profiles is usually done by screwed clamp connectors or by gluing or pinning of end pieces. These joining techniques for profiles made of fiber-reinforced plastic have disadvantages. Thus, clamping connections require expensive clamping parts, eg half shells, in order to transmit the clamping forces. In addition, the fiber-reinforced profiles are additionally burdened by the clamping forces, so that such compounds do not reach the strength of the profiles.

Adhesive joints require a sufficiently long overlap, which increases the cost and weight of the construction, and they also have the risk of component failure, especially if the bonding process has been carried out incorrectly, for example with soiled adhesive surfaces or too narrow or too wide adhesive gaps. Pin or bolt connections of profiles of fiber reinforced plastic are unfavorable in terms of power flow, especially as the fiber flow is interrupted by drilling or even destroyed. As a result, the strength of such a connection can by far not correspond to that of an unprocessed or undamaged profile.

US 4,353,268 A describes an end piece in fiber composite rods, which can be formed by wrapping with fiber composite material as a kind of pressure sleeve.

Summary

It is an object of the present invention to provide a rod-shaped assembly that can be connected to at least one other component and absorb forces from this component or transmitted to this, as a material for a middle tubular or hose-like part, hereinafter referred to as Coat is called fiber-reinforced plastic to be used, in particular with regard to the lowest possible weight. The object can also be seen to make an attachment between the shell and for attaching the rod-shaped assembly to other components serving end pieces so that the connection between the shell and the end pieces as much as possible loaded or particularly robust, especially in terms both Tensile and compressive forces. This object is achieved by a rod-shaped assembly according to the independent claim 1. Furthermore, a method for producing the rod-shaped assembly according to the independent method claim is provided.

Advantageous embodiments of the invention are the subject of dependent subclaims.

The invention includes the idea of a rod-shaped assembly having a jacket and at least one inner and at least one outer end piece, wherein the jacket of one or more layers of fabric, in particular of

Carbon fiber fabric or glass fiber fabric or plastic web, consists, which are glued or embedded in a plastic or adhesive, in particular a resin; and wherein the sheath at least partially has a tubular or tubular shape, wherein the dimensions or the shape of the cross-sectional area may vary over the length; and wherein the inner end piece is in particular positively connected to one end of the shell by the end of the shell having at least one of the / tissue layers, U-shaped Umkrempelung inwardly with respect to a lateral surface of the shell and having an inner surface which in the Area of Umkrempelung is brought to a geometrically corresponding contact surface of the inner end piece to the plant; and wherein the outer end piece is in particular positively connected to the end of the shell, which is in communication with the inner end piece, by the end of the shell with an outer surface which lies in the region of the Umkrempelung, on a geometrically corresponding contact surface of the outer end piece to Attachment is brought. In this case, the inner and outer end piece may be secured to the end of the shell so that they can not be moved relative to the end of the shell.

Because the shell of a rod-shaped assembly made of fiber-reinforced plastic, which compared to common

Construction materials such as steel has a significantly lower density, the rod-shaped assembly according to the invention can be made easier than a comparatively stable construction made of steel.

The formulation that the sheath is turned inside out at one end is preferably to be understood as meaning that the fabric at the end of the sheath, which previously had a tubular or tubular shape, is folded inward or everted or is folded over, wherein the folding or everting or turning over is preferably circumferential and has no interruption, so that the entire end of the shell is folded inward or everted or turned over. As a Umkrempelung inside is preferably to understand the area in which the jacket was turned inside out. The Umkrempelung may be formed by a lateral surface or a wall of the shell.

As inner end piece is preferably a component to understand that is located at one end of a rod-shaped assembly and adjacent to the inside of the wall of the shell, wherein the inner end piece is at least partially surrounded by the jacket. As an outer end piece is preferably a component to understand that is located at one end of a rod-shaped assembly and adjacent to the outside of the wall of the shell. Therefore, it is usually easy to see when looking at a rod-shaped assembly. As a contact surface of an inner end piece is preferably a surface of an inner end piece to understand that touches the coat in the region of a Umkrempelung in a rod-shaped assembly. As a contact surface of an outer end piece is preferably a surface of an outer end piece to understand that touches the coat in the region of a Umkrempelung in a rod-shaped assembly. If a rod-shaped assembly, the jacket has a Umkremmung inward, is loaded in the axial direction to train, the jacket is pressed in the Umkrempelung by the positive engagement against the contact surface of the inner end piece and thereby remains fixed in position. The stability of the connection between the sheath and the inner end piece results inter alia from the strength and stiffness of the overturning of the sheath, because the turned-over end of the sheath would have to be bent in order to be able to be pulled out of the space between the inner and the outer end piece. In addition, caused by the pressing of the Umkrempelung of the shell to the contact surface of the inner end piece at this point frictional forces, which counteract a withdrawal of the shell end from the space between the inner and outer end piece and strengthen with increasing axial traction. Due to the effect of positive engagement and the friction associated with this compound can have a greater load capacity to train than a rod-shaped assembly, which has only adhesive joints and does not have a positive connection. In addition, there are no vulnerabilities due to interruptions in the fiber flow, as is the case with pinning, for example.

If a rod-shaped assembly whose jacket has a Umkrempelung inside, is loaded in the axial direction to pressure, the jacket is pressed in the Umkrempelung by the positive engagement against the contact surface of the outer end and thus remains fixed in position. The stability of the connection between the sheath and the outer end results, inter alia, from the strength and rigidity of the Umkrempelung of the shell, because the jacket would have to be bent crooked to be inserted into the space between the inner and outer end piece can. In addition, caused by the pressing of the Umkremmung of the jacket to the contact surface of the outer end piece at this point frictional forces, which counteract insertion of the sheath end in the space between the inner and outer end piece and strengthen with increasing axial compressive force. Due to the effect of the positive connection and the associated friction, this compound can also have a greater load capacity on pressure, as a rod-shaped assembly, which has only adhesive joints and does not have a positive connection.

In a rod-shaped assembly, the shell can also touch the inner and outer end pieces at other locations than just at the contact surfaces, which are located in the areas of the Umkrempelungen. However, the contact surfaces are particularly crucial because arise in an axial tensile or compressive load of the rod-shaped assembly on these surfaces positive engagement and the above-described frictional forces between the jacket and the end pieces.

If a sheath at the ends would have only a constriction or constriction instead of a Umkrempelung, high tensile stress can be generated within the jacket wall, in particular tangential tensile stresses, resulting in tearing of the sheath end and to pull the sheath end from the space between the inner and outer Can lead tail. In contrast, in a Umkrempelung due to the other power flow and the friction effect, the particular tangential tensile stresses can be kept within the shell wall, so that the risk of Tearing the coat end can be reduced. Therefore, a rod-shaped assembly whose shell is turned upside down at least end, have a greater load capacity to train, as a rod-shaped assembly whose shell is only constricted or narrowed at least at one end. Once a sheath has been turned inside out at one end with respect to the surface of the sheath, the area that was the end of the sheath prior to re-crimping is now inside the sheath and the peripheral face defining the sheath fabric is facing into the inside of the coat. If a part of this end is now turned inside out again, the end points outwards again. Following the same principle, the end of the mantle can be turned inside out a third or more times if there is enough space inside the mantle.

During the manufacture of a bar-shaped assembly, the number, location and shape of the overturns are defined by the inner and outer end portions when these two portions are collapsed and form the end of the shell in the space therebetween, with a plastic or adhesive between the fabric layers of the shell is not yet cured at this time and still malleable. After curing of the plastic or adhesive, the jacket remains fixed in the folded-over form. The formation of several Umkremmenungen at one end of the rod-shaped assembly is thus done almost simultaneously. In the previous explanation of a multiple rollover, the formation of the individual rollovers was considered only one after the other to facilitate understanding.

The more Umkrempelungen are present, the greater frictional forces can be used to counteract under tensile load pulling out of the mantle end from the space between the inner and outer end piece and to complicate the insertion of the mantle end in this room under pressure load. As a result, the load capacity of the rod-shaped assembly can be increased to train and pressure. In addition to the described positive engagement of the contact surfaces of the end pieces with the Umkremmung of the shell further measures can be taken to allow the transmission of forces in a particularly secure manner, for example in terms of tensile forces, which are introduced via an outer end in the rod-shaped assembly. Additional force and / or material closure can e.g. effectively avoid pulling the outer tail off the end of the sheath. Also can be effectively effected by means of force and / or material connection that no rotation of the end pieces with respect to the jacket takes place in rotationally symmetrical end pieces.

In order for the described rod-shaped assembly to transmit tensile and compressive forces in as many planes or directions as possible, the inner and outer end pieces may be additionally fastened to such an end of the jacket that they can not be moved relative to the end of the jacket. This attachment can be done in different ways.

For example, the end pieces can be screwed together, thereby fixing the end of the shell. In addition, the end pieces can be glued to the jacket. Form-fitting at the Umkrempelung can by additional

Contact surfaces are extended so that undercuts arise that prevent displacement or rotation of the end pieces. In addition, a combination of several of these or other constructive solutions is possible to prevent the mobility of the end pieces relative to the end of the shell with respect to some or all translational and / or rotational degrees of freedom.

If such a rod-shaped assembly is subjected to a load, the described attachment of the end pieces on the shell and the positive connection between the end pieces and the Umkremmung of the shell can cooperate to ensure the stability of the rod-shaped assembly. For example, in a rod-shaped assembly whose end pieces are screwed together, pulled in the axial direction at the outer end, the tensile force on the

Transfer screw from the outer to the inner end piece. The inner end piece in turn is supported by the positive connection at the Umkrempelung at the end of the shell. Friction between the Umkrempelung of the shell and the contact surface of the inner end piece, so that the adhesion of the sheath end on inner end piece is reinforced.

Threads or through holes in the inner or outer end pieces may serve to connect the end pieces together or to receive fasteners, particularly screws or bolts, on the rod-shaped assembly. With the help of the fastening means, the rod-shaped assembly can be attached to other components, for example to supports, plates or beams or, for example, to connection nodes that can serve to accommodate a plurality of oriented in different directions rod-shaped assemblies. Thus, the outer or the inner end piece can produce a mechanical interface to other components, so fulfill the function of a connection part. As a through hole is preferably to be understood an opening that extends from one side of a component to the opposite side and allows the implementation of another component with suitable dimensions by the first component.

The shell of a rod-shaped assembly has at least partially a tubular or tubular shape. In this case, the cross-sectional area is designed in particular as a circular ring, because this shape allows the highest possible load capacity of the rod-shaped assembly on pressure. But there are also other cross-sectional shapes possible, for example, elliptical, square, rectangular, hexagonal. In addition, the sheath in the middle may have a larger diameter or a greater width or height than at its ends, because the ends of a bar are less prone to buckling under pressure than the middle area. Thereby, the tissue requirements and the adhesive or plastic need for the jacket can be reduced and the end pieces can be made smaller, so that the weight of the rod-shaped assembly can be reduced.

A rod-shaped assembly may have different sizes depending on the existing requirements. Thus, small rod-shaped assemblies are conceivable, whose shell has a diameter or width of about 10 mm. Rod-shaped assemblies of this size can be used for example in precision engineering. On the other hand, large rod-shaped assemblies are conceivable whose coat has a diameter or width of about 1000 mm. Rod-shaped assemblies of this size can be used for example as supports in bridge construction. Due to the manufacturability and the stability, the length of a rod-shaped assembly is dependent on the diameter or the width of the shell. For example, a length of a rod-shaped assembly with a diameter of about 10 mm could be 50 mm. For example, a rod-shaped assembly with a diameter of about 1000 mm could be 50 m long. In addition, the production of rod-shaped assemblies is possible, whose diameter or width is between 10 and 1000 mm and whose length is between 50 mm and 50 m.

According to one embodiment, the rod-shaped assembly at both ends in each case at least one inner and outer end piece, so that they can be connected to other components at both ends and can be used in various ways as a pull or push rod.

According to one embodiment, the end pieces are connected to each other by means of a threaded bush or at least one screw and optionally also braced, in particular along one / the longitudinal axis of the shell. The bracing provides the ability to generate high clamping or friction forces between the end pieces, so that they can remain attached to one another even when a load, such as an axial tensile force or a torsional moment, is applied to the rod-shaped assembly. In addition, this mounting direction provides an advantageous power flow and also a good accessibility when screwing.

As a threaded bushing is preferably to be understood a cylindrically shaped component having on its back a collar and has an external thread extending from the front to a shank or to the federal government. In addition, the threaded bushing has a through hole that extends from the front to the back. With the external thread, the threaded bushing can be screwed into another component, and the through hole is adapted to receive another, sufficiently small component or store. To facilitate screwing in, the threaded bushing on the collar can additionally have wrench surfaces. The front side of a threaded bushing is preferably to be understood as the side of a threaded bushing which, after installation of the threaded bushing, points inward in a rod-shaped subassembly in the axial direction. As the back of a threaded bush is preferably to understand the side of a threaded bushing, which is opposite to the front of the threaded bushing.

According to one embodiment, the end pieces are clamped together or against each other and the Umkrempelung is arranged between the end pieces, that the end pieces press against the Umkrempelung, in particular in the direction of / a longitudinal axis of the shell. This also makes possible in particular the full clamping of the recirculation, in particular in an inner region of the jacket. The outer surface of the jacket can remain smooth and even. By bracing the frictional effect can be enhanced compared to an unstressed construction and the extraction of the shell end from the space between the inner and the outer end piece are further complicated, whereby the load capacity of the rod-shaped assembly can be increased to train. Due to the increased friction effect, the insertion of the jacket end in the space between the inner and the outer end piece can be made more difficult, whereby the load capacity of the rod-shaped assembly can be increased to pressure.

According to one embodiment, the Umkrempelung U-shaped with respect to a / the longitudinal axis of the shell. The U-shape can be created by turning one end of the sheath once inside. Even the U-shape provides a good wedging or a connection with very high load capacity. According to one embodiment, at least one inner end piece is positively connected to one end of the shell by the end of the shell in addition to a first Umkrempelung a second Umkrempelung inwardly with respect to the lateral surface of the shell and having an inner surface which in the region of the second Umkrempelung is brought to a geometrically corresponding contact surface of the inner end piece to the plant; and at least one outer end piece is positively connected to the end of the shell which is in communication with the inner end piece, by connecting the end of the shell with an outer surface lying in the region of the second Umkrempelung on a geometrically

corresponding contact surface of the outer end piece is brought to bear.

Due to the second recirculation inwards, friction between the jacket and the outer end piece can also occur during axial tension. Thus, compared to a construction with only one Umkrempelung the frictional effect can be amplified and the extraction of the jacket from the space between the inner and outer end piece are further complicated, whereby the load capacity of the rod-shaped assembly can be increased to train. At axial pressure and friction between the shell and the inner end piece can arise. As a result, compared with a construction with only one Umkrempelung the friction effect can be strengthened and the insertion of the shell in the space between the inner and outer end piece are further complicated, whereby the load capacity of the rod-shaped assembly can be increased to pressure.

According to one embodiment, at least one end of the shell has two Umkrempelungen, wherein the two Umkrempelungen together form an S-shape, in particular an S-shape in the radial direction orthogonal to a / the longitudinal axis of the shell. The S-shape can be created by turning the jacket inwards two times in relation to the

The lateral surface of the jacket is turned upside down. The S-shape can be compared to a U-shape, the entanglement and the

Further improve fit, even a traction. Depending on the materials and space, the U or S shape may be more advantageous. In many applications, the S-shape provides very good properties. Both the U-shape and the S-shape do not necessarily have to be strictly geometrically arcuate over e.g. 180 °, but may also be designed differently. The fabric layer is returned at least once in the U-shape, and at least twice in the S-shape. By a double arcuate arrangement results in an S-shape, even if this does not have to be formed strictly symmetrical or strictly geometrically corresponding to an S-letter.

According to one embodiment, the recirculation of the jacket is materially bonded, in particular by an adhesive connection, connected to at least one of the end pieces. An adhesive bond between the sheath and an end piece can be made during the manufacture of the rod-shaped assembly in the formation of the Umkrempelung by the not yet cured plastic or adhesive of the shell comes into contact with the end face when forming the sheath end. Gluing the jacket or Umkrempelung with at least one of the end pieces can serve to attach the tail at the sheath end or to increase the strength of a connection between the sheath and the tail still further.

According to one embodiment, at least one end piece in a surface which contacts the casing has at least one depression, opening or through-hole. During the production of the rod-shaped assembly, this depression, opening or through-hole is at least partially filled when pushing the outer end piece with the plastic or adhesive, which serves for bonding the fabric layers of the shell. After curing of the plastic or adhesive thereby creates a positive connection between the shell and the tail, which counteracts a rotation or displacement of the shell relative to the tail and thus complicates withdrawal of the shell from the space between the inner and the outer tail. The depression is in particular a notch of a knurled surface. Optionally, the plastic or adhesive can also be used for material connection with at least one end piece.

According to one embodiment, the Umkrempelung is circumferential, in particular rotationally symmetrical with respect to the longitudinal axis of the shell. As a result, a high strength can be ensured. Stress peaks can be avoided. This can ensure even surface pressure.

According to one embodiment, the sheath consists of one or more fabric hoses, which are glued or embedded in a plastic or adhesive, in particular a resin, wherein the fabric is in particular carbon fiber fabric or glass fiber fabric or plastic fabric. According to one embodiment, located within the shell at least one core, which is adjacent to the inside of the shell. The core is preferably to be understood as a component which, from the inside, adjoins the jacket of the rod-shaped assembly and is arranged further inwards in the axial direction with respect to the inner and outer end pieces. During a manufacturing process of the rod-shaped assembly, the fabric of the jacket is pulled onto the one or more cores if fabric tubes are used, or wound up if bands or sheets of fabric are used. Thus, the one or more cores during this manufacturing process, the mold for the shell before, so that no external mold jaws are required. This is advantageous because it can reduce the manufacturing cost.

A core can also be composed of several parts, in particular of two parts, wherein the dividing plane between these two parts is particularly flat on the longitudinal axis of the rod-shaped assembly. By a shared structure, especially the manufacturability of longer cores can be simplified. The core may have at least one through hole, and the at least one inner end piece may have a through hole, wherein the inner end piece comes to rest on the core, in particular on the front side. The at least one outer end piece may have a through hole. The

Through holes in the at least one core and in the end pieces may be used during a manufacturing process of the rod-shaped assembly to push the at least one core and the end pieces onto a guide tube.

According to one embodiment, at least one inner end piece has at least one shoulder, the shoulder being engaged with the core adjacent to the inner end piece in such a way that the core is opposite to the side at which it adjoins the inner end piece inner end piece is centered.

According to one embodiment, at least one core has at least one shoulder, wherein the shoulder engages with an adjacent core such that both cores center on each other at the sides adjacent to each other become. The heels center the cores to each other, thereby reducing steps or steps in the outer surface at the junction between the cores, which is advantageous during the manufacture of the rod-shaped shell forming assembly, because the sheath is tensioned for maximum load bearing capacity and pressure should be as free of paragraphs or steps as possible.

According to one embodiment, at least one core consists of an at least partially air-permeable material, in particular an at least partially open-pored plastic foam. During a manufacturing process of the rod-shaped assembly, the fabric layers of the shell are covered from the outside with plastic or adhesive, if the plastic or adhesive has not previously been introduced into the fabric layers. If the plastic or adhesive is supplied from the outside, it may happen, especially when using multiple layers of fabric, that the plastic or adhesive does not reach the inner fabric layers. As a result, the subsequent carrying capacity of the rod-shaped assembly would be greatly reduced. In order to improve in particular the wetting of the inner fabric layers with plastic or adhesive, a negative pressure can be generated within the fabric layers during or after the plastic or adhesive material application, so that the plastic or adhesive is pressed by the outer overpressure inwardly through the fabric layers. For this purpose, it is necessary that the negative pressure generated inside the shell reaches the plastic or adhesive. This can be made possible by making the one or more cores on which the fabric of the jacket rests from an air-permeable material. For this purpose, due to the low weight and the ease of manufacture, an open-pore plastic foam is suitable. According to one embodiment, the rod-shaped assembly has at least one threaded bushing and at least one threaded bolt, the threaded bolt having a head and an external thread, which extends either to the head or up to a shaft; and wherein the threaded bolt is inserted into the threaded bushing so that its head faces the center of the beam in the axial direction, wherein the diameter or the width of the head is greater than the diameter or the width of the through hole of the threaded bushing, so that the threaded bolt does not project outwards the rod-shaped assembly can be pulled out.

As a threaded bolt is preferably a bolt with a head to understand that at the end without head has an external thread that either extends to the head or in particular extends to a centrally disposed shaft. According to one embodiment, the rod-shaped assembly has at least one driving pin and at least one sleeve, wherein the driving pin is inserted into a lateral bore of the threaded bolt, which extends transversely to the longitudinal axis of the threaded bolt, and wherein the driving pin engages in at least one slot of the sleeve, so that the threaded bolt must rotate with a rotation of the associated sleeve, but in the axial direction relative to the sleeve is displaceable by a distance which depends on the length of the slot.

According to one embodiment, the rod-shaped assembly has at least one threaded bolt and at least one sleeve which is pushed onto the threaded bolt, wherein the threaded bolt and the sleeve each have at least one non-circular geometry, the threaded bolt in particular a polygon shaft and the sleeve in particular a Polygonnabe, so that the threaded bolt is rotationally connected to the pushed-on sleeve, so that the threaded bolt must rotate with a rotation of the sleeve, but in the axial direction relative to the sleeve is displaceable.

The principle of the sleeves, which are rotationally connected via threaded pins or non-circular geometries with threaded bolt, is already known as prior art and is combined in the respective embodiment with the rod-shaped assembly according to the invention to the embodiment of the rod-shaped assembly of other components, for example at connection nodes , to fasten, in particular with comparatively large tightening torques.

According to one embodiment, at least one outer end piece in addition to a centrally located

Through hole at least two further through holes, in particular holes, which, from the front to the Rich back of the outer end piece and adjacent to at least one planar connection surface of the outer end piece or at least partially surrounded by at least one planar connection surface.

In this case, the surface to be understood is preferably a surface which constitutes an outer boundary of a component or an assembly and has a simple geometric shape, in particular being shaped flat or cylindrical. Since a connection surface represents an outer boundary of a component or an assembly, further components can be applied from the outside to a connection surface.

The at least two further through holes can serve for fastening the rod-shaped assembly to other components, for example to connection nodes, screws being used in particular for the fastening. While in the embodiments with threaded bolts and sleeves at the rod end is in each case a single-screw, the further through-holes allow this embodiment, a multi-bolt connection. This can be compared to a single-screw connection a higher security against loosening under dynamic load, especially in dynamic torsional load having.

According to one embodiment, at least one outer end piece has a circumferential groove, which adjoins the jacket and is adapted to receive a sealing element (in particular O-ring).

The above-mentioned object is also achieved by a rod-shaped assembly with rebounding, in particular a previously described rod-shaped assembly, produced by connecting at least one end of a tubular or tubular jacket of one or more fabric layers, each having at least one inner end piece and at least one outer end piece, wherein the end of the shell in the form of at least one of the / the fabric layers, U-shaped Umkrempelung is formed inwardly, wherein the connecting takes place such that the jacket with an inner surface in the Umkrempelung on a geometrically corresponding contact surface of the inner end piece is brought to the plant and is brought into contact with an outer surface in the region of the Umkrempelung on a geometrically corresponding contact surface of the outer end piece. This results in the aforementioned advantages.

The aforementioned object is also achieved by a rod-shaped assembly, comprising:

a coat; at least one inner tail; and at least one outer end piece; wherein the jacket consists of one or more layers of fabric glued or embedded in a plastic or adhesive; wherein the shell at least partially has a tubular or tubular shape; wherein the inner end piece is connected to one end of the shell by the inside of the shell having two U-shaped convolutions consisting of the fabric layers and having an inner surface lying in the region of at least one of the convolutions on a geometrically corresponding one Contact surface of the inner end piece is brought to bear; and wherein the outer end piece is connected to the end of the shell by abutting the end of the shell with an outer surface lying in the region of at least one of the Umkrempelungen on a geometrically corresponding contact surface of the outer end piece. This results in the aforementioned advantages.

The above object is also achieved by a method for producing a rod-shaped assembly, in particular a previously described assembly, the method comprising the following steps: assembly of one or more cores on a guide tube, wherein when mounting a plurality of cores, the adjacent cores respectively adjoin one another; Mounting at least one inner end piece on the guide tube, the inner end piece having a back side facing the one or more cores already mounted, the respective inner end piece being disposable adjacent the outer cores or the individual core; Applying at least one layer of fabric to the one or more cores and the inner end piece, the fabric protruding outwardly beyond the inner end piece so that there is enough fabric to later cover at least one abutment surface of the inner or outer end piece; as intended, ideally not too much tissue being present so that the space later available between the inner and outer tails is not exceeded, and wherein the tissue is in the direction of Longitudinal axis of the rod-shaped assembly is raised, if tissue tubes are used, or wound up, if bands or flat tissue pieces are used; Mounting at least one outer end piece on the

Guide tube, in particular at each of the two ends of the guide tube, the outer end having a front to the inner end piece, but this preferably not touched, but at a suitable distance, preferably 20 to 200 mm away positioned; Moving the outer end piece inwardly or to the inner end piece, in particular until at least one positioning of the outer end piece contacts a respective positioning of the inner end piece, wherein the protruding tissue thereby, by hand or with a suitable tool, between the outer and the inner end piece is pressed that the tissue when pushing the outer end piece assumes the shape of the respective contact surface of the inner and / or outer end and thereby between the end pieces at least one consisting of the tissue, U-shaped Umkrempelung or the folded-over form is formed, in particular on respective end of the mantle;

Connecting the end pieces with each other and / or with the Umkrempelung; and removing the guide tube and optionally also other device parts.

By the end pieces are pushed against each other and the Umkrempelung between the end pieces is formed, the jacket can be molded to the end pieces. This can reduce a risk that the fit will not be created well. In particular, the shell can be imposed on the geometry of the end pieces, so that a large

Contact surface is obtained and high forces at low pressure or voltage peaks are transferable.

The positioning surface of an inner or outer end piece is to be understood as meaning preferably a surface on which the inner end piece contacts the outer end piece after the outer end piece has been displaced inward.

Pushing the cores and the end pieces onto a straight guide tube makes it possible to produce a rod-shaped assembly with increased straightness. In addition, the storage of the rod-shaped assembly without the contact of the shell is possible, which is particularly advantageous if the plastic or adhesive of the shell is not cured.

According to one embodiment, the method for producing a rod-shaped assembly also comprises the following steps: applying at least limited flowable plastic or adhesive, in particular liquid resin, to the fabric layer or to the fabric of the jacket if the plastic or adhesive is not already in the fabric is included, in particular before moving; and curing the plastic or adhesive, in particular at room temperature or elevated temperature, in particular before removal.

According to one embodiment, the method for producing a rod-shaped assembly also comprises the following steps: connection of the guide tube either with at least one drive unit at each of the two ends of the guide tube or with at least one drive unit at one end and with at least one bearing unit at the other end, wherein the Drive unit is arranged to store the guide tube and the parts mounted thereon and around the

To rotate longitudinal axis and the bearing unit is adapted to store the guide tube; and rotational movement of the guide tube with the parts mounted thereon about the longitudinal axis, which can be maintained during or after the application of plastic or adhesive to the jacket for a period of one second to 24 hours. The rotational movement of the rod-shaped assembly during or after the application of plastic or adhesive to the jacket can promote the even distribution of the plastic or adhesive and avoid or reduce the formation of drooping drops or noses.

According to one embodiment, the method for producing a rod-shaped assembly also includes the following steps: connection of the guide tube with a vacuum pump via a pneumatic tube or hose, wherein advantageously also a pneumatic rotary feedthrough can be connected to the guide tube, if one

Rotary movement of the guide tube is provided about the longitudinal axis; Sealing the gap between the through holes of the inner end pieces and the guide tube with suitable sealing elements and if the guide tube has an open end having, the sealing of the open end of the guide tube with a suitable sealing element, in particular a plug; and pressurizing the interior of the guide tube with negative pressure by means of the vacuum pump, after or while plastic or adhesive is applied to the fabric of the jacket, wherein the negative pressure from the interior of the

Guide tube through at least one through hole, in particular a bore, in the wall of the guide tube is transmitted to at least one through hole of a core, from where it passes through the wall of at least one core of an at least partially air-permeable material, in particular of an open-cell plastic foam, exists, and penetrates through the fabric layers, so that the plastic or adhesive is pressed by the external pressure inward through the fabric of the jacket. According to one embodiment, the method further comprises connecting the at least one inner end piece to the at least one outer end piece, in particular also a clamping of the end pieces against the Umkrempelung, in particular a screwing with at least one screw or a threaded bushing. The screwing against each other provides a robust mechanical connection in which a compressive force or surface pressure can be metered very accurately, depending on whether a large proportion of adhesion and / or material connection is desired.

According to one embodiment, the method for producing a rod-shaped assembly also comprises the following steps: inserting at least one threaded bolt respectively into the through-hole of a threaded bush, the threaded bolt being oriented with its head on a front side of the threaded bush; Screwing the at least one threaded bushing and the threaded bolt inserted therein into the at least one inner end piece;

Sliding on each of a sleeve on the at least one threaded bolt; and inserting in each case one driving pin into the respective one lateral bore of the at least one threaded bolt, wherein the driving pin engages in each case with its ends in at least one oblong hole of the sleeve. In this case, the threaded bolt may alternatively also have a non-circular geometry, in particular in the manner of a polygonal shaft. The aforementioned object is also achieved by using one end of a shell consisting of at least one fabric layer of a rod-shaped assembly, in particular a rod-shaped assembly according to one of the preceding claims, for forming a coupling to a connecting element or another rod-shaped assembly by means of at least one of the at least a fabric layer existing, U-shaped Umkrempelung, with which two end pieces are connected, which are brought on both sides inside and outside of the Umkrempelung to the plant. The end of the shell forms the Umkrempelung and the force-transmitting interface to at least one end piece or to the connecting element. This has both advantages in the production as well as in terms of strength and life or different types of stress.

Short description of the figures

In the following drawing figures, the invention will be explained in more detail with reference to preferred embodiments. Show it:

1A, 1B, IC in a perspective view of a rod-shaped assembly and in each case in an enlarged perspective view of an end of a rod-shaped assembly according to an embodiment;

Figures 2A, 2D in a side view of a rod-shaped assembly respectively according to an embodiment;

Figures 2B, 2C, 2E in an enlarged side view and in an enlarged sectional view of an end and the central region of a rod-shaped assembly according to an embodiment;

Figures 3 A, 3B, 4A, 4B in a side view and in a sectional view of an inner or outer end of a rod-shaped assembly according to an embodiment;

Figure 5A, 5B respectively in a sectional view of a core of a rod-shaped assembly according to a

Embodiment;

Figure 6 is an enlarged sectional view of an end of a jacket according to an embodiment;

7A, 7B, 7C in a rear view, in a plan view and in a sectional view of a threaded bushing of a rod-shaped assembly according to an embodiment; 8A in a perspective view of a rod-shaped assembly according to another

exemplary;

FIGS. 8B, 8C each show, in an enlarged perspective view, an end of a rod-shaped assembly according to a further exemplary embodiment;

Figures 9A, 9B, 9C in an enlarged side view and in an enlarged sectional view of an end and the central region of a rod-shaped assembly according to a further embodiment;

Figures 10A, 10B, IOC in a side view, in a sectional view and in a plan view of an outer end of a rod-shaped assembly according to another embodiment;

Figures IIA, IIB respectively in a side view steps of a method for producing a rod-shaped assembly according to an embodiment; and

Figure HC in a side view of a rod-shaped assembly according to an embodiment.

In connection with the description of the following figures, reference numbers, if not explicitly explained in individual figures, refer to the further figures.

Detailed description of the figures and preferred embodiments of the invention

For better clarity, the drawing figures can be divided into the three groups described below. The figures of the first group are Figures 1 A to 7C. These show a rod-shaped assembly and individual parts of the rod-shaped assembly, wherein the rod-shaped assembly is carried out according to an embodiment. The figures of the second group, which comprises the figures 8A to IOC, show a rod-shaped assembly and individual parts of the rod-shaped assembly, wherein the rod-shaped assembly is designed according to a further embodiment. The figures of the third group are the figures IIA, I IB and HC. These serve to explain a method for producing a rod-shaped assembly according to the first of the two embodiments.

In the figure 1 A is shown that the rod-shaped assembly la, two identically constructed ends la.1 has, between which the jacket 2a extends. In FIGS. 1B and 1C it is shown that two outer end pieces 4a adjoin the casing 2a. The outer end pieces 4a each have a through hole (compare Fig. 4B), in each of which a threaded bushing 7 is inserted. The two threaded bushes 7 each have a through hole (compare Fig. 7C), in which the threaded bolt 8 is mounted. On the two threaded bolts 8 a sleeve 10 is mounted in each case.

FIGS. 2A, 2B and 2C show the rod-shaped module 1a and an end 1a.1 of the rod-shaped module 1a. In a lateral bore of the threaded bolt 8, which extends transversely to the longitudinal axis of the threaded bolt 8, the driving pin 9 is arranged, wherein the driving pin 9 engages with its two ends each in two slots 10.1 of the sleeves 10, wherein the slots 10.1 on two opposite sides of the sleeve 10 are arranged. As a result, the threaded bolt 8 must rotate with a rotation of the associated sleeve 10, but in the direction of the longitudinal axis L of the rod-shaped assembly la relative to the sleeve 10 is displaced by a distance that depends on the length of the slots 10.1. The external thread 8.3 of the threaded bolt 8 is used to attach the rod-shaped assembly la to other components (not shown).

In FIG. 2C, it is shown that within the shell 2a, the core 5a is arranged, which adjoins the shell 2a from the inside. Adjacent to the core 5a, the inner end piece 3a is arranged, which likewise adjoins the casing 2a and is at least partially surrounded by the casing 2a.

The threaded bush 7 is inserted through a through hole (see Fig. 4B) of the outer end piece 4a and screwed to the inner end piece 3a. In this case, the collar (see Fig. 7B) of the threaded bushing 7 rests on the outer end piece 4a and prevents the inner end piece 3a from moving apart relative to the outer end piece 4a. The shank 8.2 of the threaded bolt 8 is mounted inside the threaded bushing 7 in such a way that the head 8.1 of the threaded bolt 8 points in the axial direction to the middle of the rod, wherein the outer diameter of the head 8.1 is greater than the inner diameter of the through hole (see FIG. 7C) of the threaded bushing 7 is, so that the threaded bolt 8 can not be pulled out in the axial direction outward from the rod-shaped assembly la. In order to mount the rod-shaped assembly la on a further component, the threaded bolt 8 is screwed with its external thread 8.3 by turning the sleeve 10 in a matching thread of the other component until the head 8.1 of the threaded bolt 8 on the front (see Fig .. 7B ) of the threaded bushing 7 rests, and advantageously tightened with a suitable tightening torque.

The fact that the two threaded bolts 8 of the rod-shaped assembly la can be moved axially, they can be completely or at least partially inserted into the outer end pieces 4a, so that the rod-shaped assembly la also between two other components (not shown) insert and fix , which are already mounted in the distance which corresponds to the length of the rod-shaped assembly la. This can be the case, for example, if a rod-shaped module 1a is to be replaced in an already constructed space frame.

It is shown in FIGS. 2D and 2E that the two cores 5a adjoin the casing 2a from the inside. In the direction of the longitudinal axis L of the rod-shaped module 1a, the two cores 5a each extend from the ends 1a.1 of the rod-shaped module 1a to the centrally arranged core 6a.

In FIGS. 3A and 3B, it is shown that the inner end piece 3a has the through hole 3.5 which extends from the front side 3.1 to the rear side 3.2 of the inner end piece 3a. Within the through-hole 3.5, the internal thread 3.9 is arranged, which is suitable for the external thread of the threaded bushing (compare Fig. 7B), so that they can be screwed into the inner end piece 3a. The inner end piece 3a also has the shoulder 3.8, which serves to center the core 5a, which abuts the inner end piece 3a in the rod-shaped assembly 1a, thereby avoiding or reducing steps or steps in the shell 2a. On the front side 3.1, the inner end piece 3a has the contact surfaces 3.3 and 3.4 which, in the rod-shaped assembly 1a, contact the jacket 2a at the rebates (see FIG. At the front 3.1, the inner end piece 3a also has the positioning surfaces 3.6 and 3.7. These are arranged to position the outer end piece 4a while it is being mounted.

In FIGS. 4A and 4B, it is shown that the outer end piece 4a has a through hole 4a.5 which extends from the front side 4a.1 to the rear side 4a.2 of the outer end piece 4a. In addition, the outer end piece 4a on the front side 4a.1 has the abutment surfaces 4a.3 and 4a.4, which in the mounted state touch the casing 2a on the recirculations (see Fig. 6). At the front side 4a.1, the outer end piece 4a also has the positioning surfaces 4a.6 and 4a.7. These come into contact with the positioning surfaces 3.6 and 3.7 of the inner end piece 3a during assembly of the outer end piece 4a, whereby the outer end piece 4a can be suitably positioned. In addition, the outer end portion 4a has a circumferential groove 4a.8, which can serve to receive an annular sealing element (not shown), in particular an O-ring, to the tightness of the transition from the jacket 2a to the outer end piece 4a against the ingress of To increase liquids or gases.

In FIGS. 5A and 5B, it is shown that the cores 5a and 6a each have a through hole 5.3 or 6.3 which extends from the front 5.1 or 6.1 to the rear 5.2 or 6.2 of the cores 5a and 6a, the core 6a the front 6.1 and the back 6.2 is constructed the same, so that both sides can be swapped arbitrarily. The through holes 5.3 and 6.3 allow the passage of a guide tube (see Fig. 11 A), on which the cores 5a can be stored during the manufacture of the rod-shaped assembly la. At the rear side 5.2 of the core 5a, the shoulder 5.4 is arranged, which is introduced during the assembly of the rod-shaped assembly la in the through hole 6.3 of the core 6a, whereby the core 6a is centered relative to the core 5a. In order to improve the wetting of the fabric layers of the shell 2a with plastic or adhesive in the production of the rod-shaped assembly la, it should be possible to press the plastic or adhesive by means of a negative pressure introduced in the interior of the shell 2a inwards. In order to be able to guide the internal vacuum to the fabric layers of the shell 2a, the cores 5a and 6a are made of an air-permeable plastic foam. In FIG. 6, it is shown that the end 2a.3 of the jacket 2a has been turned inside out twice, the two being

Umkrempelungen 2a.4 and 2a.5 together form an S-shape in the radial direction orthogonal to the longitudinal axis L. The position and the shape of the Umkrempelungen is thereby defined by the inner 3a and the outer end piece 4a when these two parts are pushed together (see Fig. HA and IIB) and form the end 2a.3 of the shell 2a in the intervening space, wherein the plastic or adhesive between the fabric layers of the shell is still malleable. After curing of the plastic or adhesive, the jacket 2a remains fixed in this form. In the figure 6, the end 2a.3 of the shell 2a is shown without the adjacent components in order to describe the Umkrempelungen better. The Umkrempelung 2a.4 is further in the radial direction to the outside than the second Umkrempelung 2a.5. At the

Outside, the jacket 2a in the region of the Umkrempelung 2a.4 the outer surface 2.6, which extends over the curved portion of the jacket wall and adjacent to the ends of two cylindrical outer surfaces. On the inner side 2.2, the inner surface 2.7 extends correspondingly in this curved region of the jacket wall. On the outside, the jacket 2a in the region of the Umkrempelung 2a.5 the outer surface 2.8, which extends over the curved portion of the jacket wall and adjacent to two cylindrical outer surfaces. On the inner side 2.2, the inner surface 2.9 extends correspondingly in this curved region of the jacket wall.

In the rod-shaped module la, the outer surface 2.6 contacts the contact surface 4a.3 of the outer end piece 4a, the inner surface 2.7 contacts the abutment surface 3.3 of the inner end piece 3a, the outer surface 2.8 touches the abutment surface 4a.4 of the outer end piece 4a and the inner surface 2.9 touches the Contact surface 3.4 of the inner end piece 3a. The jacket 2a may also touch the inner 3a and outer end 4a at other locations, but said surface pairs are particularly crucial, because at these points in axial traction or pressure by the force deflection friction between the shell 2a and the outer end 4a and between the sheath 2a and the inner end piece 3a is formed, whereby the load capacity of the compound can be increased to train and pressure.

In FIGS. 7A, 7B and 7C, it is shown that the threaded bush 7 has the collar 7.3, the shaft 7.4 and the external thread 7.5. The collar 7.3 has two key surfaces 7.7, the attacking a key, in particular a

Open wrench, and facilitate the screwing of the threaded bushing 7 in the inner end piece 3a. The

Threaded bushing 7 has a through hole 7.6, which extends from the front 7.1 to the back 7.2 of the threaded bushing 7 and serves to receive the threaded bolt 8.

In the figure 8A is shown that the rod-shaped assembly lb, two identically constructed ends lb.1, between which the casing 2b extends. It is shown in FIGS. 8B and 8C that two outer end pieces 4b adjoin the casing 2b. The outer end pieces 4b each have a through hole (see Fig. 10B), in each of which a screw 11 is arranged.

FIGS. 9A, 9B and 9C show the rod-shaped module 1b and an end 1b of the rod-shaped module 1b. Within the casing 2b, the core 5b is arranged, which adjoins the casing 2b from the inside. Adjacent to the core 5b, the inner end piece 3b is arranged, which is also adjacent to the casing 2b and at least partially surrounded by the casing 2b. The end 2b.3 of the mantle 2b is turned upside down twice, wherein the two Umkrempelungen 2b.4 and 2b.5 together form an S-shape in the radial direction to the longitudinal axis. By means of the screw 11, which has the head 11.1 and the external thread 11.2, and the washer 12, the outer end piece 4b is screwed to the inner end piece 3b. The outer end piece 4b has the flat connection surface 4b.12, with which the rod-shaped module 1b can be applied to other components (not shown). For fastening the rod-shaped module 1b to the other components, the through-holes 4b.11 can be used, in particular by being used as through-holes for screws which are screwed into the other components.

It is shown in FIG. 9C that the two cores 5b adjoin the casing 2b from the inside. In the direction of the longitudinal axis of rod-shaped assembly lb, the two cores 5b each extend from the ends lb.1 of the rod-shaped module lb to the centrally arranged core 6b. The structure of the shell 2b, the inner end piece 3b and the cores 5b and 6b is similar to the structure of the shell 2a, the inner end piece 3a and the cores 5a and 6a used in the rod-shaped assembly la. The jacket 2b, like the jacket 2a, likewise has the inside 2.2, the outside surface in the region of the recalculation 2.6, the inside surface in the region of the recut 2.7, the outside surface in the region of the second recut 2.8 and the inside surface in the region of the second recut 2.9 (cf. Fig. 6), but for the sake of clarity, these reference numerals in the figures showing the further embodiment are not marked. In addition, like the inner end piece 3a, the inner end piece 3b also has the front side 3.1, the rear side 3.2, the contact surfaces 3.3 and 3.4, the positioning surfaces 3.6 and 3.7, the shoulder 3.8 and the internal thread 3.9 (see FIGS. 3A and 3B). In addition, the cores 5b and 6b, like the cores 5a and 6a, have the front sides 5.1 and 6.1, the rear sides 5.2 and 6.2 and the through holes 5.3 and 6.3, and the core 5b, like the core 5a, has the shoulder 5.4 (see FIGS 5B). These reference numerals are likewise not shown in the figures, which show the further exemplary embodiment, for the sake of clarity.

In FIGS. 10A, 10B and 10C, it is shown that the outer end piece 4b has a through hole 4b.5 which extends from the front side 4b.1 to the rear side 4b.2 of the outer end piece 4b. In addition, the outer end piece 4b has on the front side 4b.1 via the contact surfaces 4b.3 and 4b.4, which in the assembled state, the jacket 2b at the Umkrempelungen 2b.4, 2b.5 touch. On the front side 4b.1, the outer end piece 4b also has the positioning surfaces 4b.6 and 4b.7. These come into contact with the inner end piece 3b during assembly of the outer end piece 4b, whereby the outer end piece 4b can be suitably positioned. In addition, the outer end portion 4b has a circumferential groove 4b.8, which can serve to receive an annular sealing element (not shown), in particular an O-ring, to the tightness of the transition from the jacket 2b to the outer end piece 4b against the ingress of To increase liquids or gases.

In order to connect the rod-shaped module 1b with other components (not shown), two screws (not shown) can be inserted from the front side 4b.1 of the outer end piece 4b into the through-holes 4b.11 and into two matching threads of the other components (not shown) are screwed. In this case, the through holes 4b.11 are not parallel to each other, but are inclined by a few degrees. The inclination of the through-holes 4b.11 has the advantage that more space is available for the attachment of tools used to tighten the screws, the tools being in particular torque wrenches.

The outer end piece 4b also has two through holes 4b.10 which are located in the surface 4b.9 which contacts the casing 2b in the rod-shaped assembly 1b. During the production of the rod-shaped assembly 1b, these through-holes 4b.10 are at least partially filled with the plastic or adhesive when the outer end piece 4b is pushed on, which serves for bonding the fabric layers of the jacket 2b. After curing of the plastic or adhesive, this results in a positive connection and optionally also force and / or material connection between the outer end piece 4b and the casing 2b, which counteracts twisting of the shell 2b relative to the outer end piece 4b under torsional load and also pulling out of the shell 2b made difficult from the space between the inner 3b and the outer end piece 4b.

FIGS. 11A and 11B show that the guide tube 20, the drive unit 21 and the bearing unit 22 are used to produce a rod-shaped module 1a, the drive unit 21 and the bearing unit 22 each being connected to one end of the guide tube 20. The drive unit 21 supports the guide tube 20 and allows the

Generation of a rotational movement of the guide tube about the longitudinal axis L, while the bearing unit 22, the guide tube 20 only supports. On the guide tube 20, an assembly is pushed, which contains a part of the components of the rod-shaped assembly la. This is the fabric of the shell 2a and below it concealed two cores 5a (not visible), a core 6a (not visible) and two inner end pieces 3a (not visible). The arrangement of the concealed components corresponds to the arrangement in the rod-shaped assembly la and can be seen in Figures 2C and 2E. The fabric of the shell 2a protrudes in each case by a length beyond the inner end pieces 3a, which corresponds approximately to the length of an inner end piece 3a, so that later enough tissue is available to form the Umkrempelungen 2a.4 and 2a.5 can. In Figure 11A, it is shown that the two outer end pieces 4a are also slid on the guide tube 20 and positioned at a distance approximately one to two times the length of an inner end piece 3a away from the ends of the fabric of the shell 2a wherein the front sides 4a.1 of the outer end pieces 4a respectively face the casing 2a.

To make the sheath 2a, plastic or adhesive (not shown) is applied to the fabric of the sheath. So that the plastic or adhesive can penetrate between the fibers of the sheath fabric, it is in particular liquid plastic or adhesive. In order to prevent the adhesive from dripping or nosing, the guide tube 20 and the components mounted thereon can be set into a rotational movement about the longitudinal axis L during or after the application of plastic or adhesive by means of the drive unit 21. In order to improve especially the wetting of the inner layers of the mantle fabric, during or after the plastic or adhesive material application, a negative pressure can be generated within the mantle. For this purpose, a negative pressure is generated by means of the vacuum pump 23 and introduced via the hose 24 and the pneumatic Drehdurchfuhrung 25 in the guide tube 20. The pneumatic rotary union 25 is connected on one side to the guide tube 20 and on the other side to the tubing 24, and it allows the passage of the negative pressure during a rotational movement of the guide tube 20 about the longitudinal axis L. The negative pressure is through one or more holes (not shown) in the

Wall of the guide tube 20 to the through holes 5.3 and 6.3 of the cores 5a and 6a transferred. Since the cores 5a and 6a are made of an air-permeable material, the negative pressure from the through holes 5.3 and 6.3 transmitted through the wall of the cores on the fabric of the shell 2a, so that the plastic or adhesive pressed by the external overpressure inwardly through the fabric layers becomes. In order to limit the pressure loss, the end of the guide tube 20, which is located on the side of the drive unit 21, with the sealing element 26, which is in particular a plug, closed. The gaps between the guide tube 20 and the inner end pieces 3a, are also closed by suitable sealing elements (not shown).

In Figure 11B it is shown that after the application of the plastic or adhesive (not shown) the outer end pieces 4a are pushed inwards. During the displacement of an outer end piece 4a, the tissue which projects outwardly beyond the inner end piece 3a is pressed by hand or with a suitable tool between the outer 4a and the inner end piece 3a, so that the tissue during insertion of the outer end piece 4a Shape of the contact surfaces 3.3, 3.4, 4a.3 and 4a.4 of the inner 3a and outer end piece 4a takes over and the two Umkrempelungen 2a.4 and 2a.5 at the end 2a.3 of the shell 2a arise. In this case, the outer end piece 4a is pushed so far inward until the positioning surface 4a.6 of the outer end piece 4a and the positioning surface 3.6 of the inner end piece 3 a touch.

In FIG. 11C it is shown that after curing of the plastic or adhesive which has been applied to the fabric of the shell 2a, the guide tube 20 and the components which were required for the generation of the rotational movement and the negative pressure are removed. Instead, a threaded bushing 7 was screwed into the inner end piece 3a at both ends, wherein a threaded bolt 8 is arranged inside the threaded bushing 7 so that its thread 8.3 protrudes outward (compare FIG. 2C). In each case a sleeve 10 was pushed onto the shaft 8.2 of the threaded bolt 8 and pinned by means of a driving pin 9 (see Fig. 2C). The arrangement of these components corresponds to the arrangement in the rod-shaped module la and can be seen from Figure 2C. The method shown in FIGS. 11A and 11B for producing a rod-shaped assembly 1a can also be modified such that a rod-shaped assembly 1b can be produced.

Although at least one exemplary embodiment has been described in the foregoing specification, various changes and modifications may be made. The at least one described exemplary embodiment is described merely by way of example and is not intended to limit the scope, the applicability or the

Configuration in any way. Rather, the foregoing description provides those skilled in the art with a blueprint or technical teaching for practicing at least one example embodiment, which may make numerous changes in the function and arrangement of exemplary elements or features without departing from the scope of the claims or legal equivalents set forth to leave. List of references la; lb rod-shaped assembly

LA.1; lb. l End of the rod-shaped assembly

2a; 2b coat

2.2 Inside of the jacket

2a.3; 2b .3 end of the mantle

2a.4; 2b.4 Umrotation

2a.5; 2b.5 second recut

2.6 Outer surface of the jacket in the area of Umkrempelung

2.7 Inner surface of the jacket in the area of Umkrempelung

2.8 Outer surface of the shell in the area of the second recut

2.9 inner surface of the shell in the region of the second Umkrempelung 3a; 3b inner tail

3.1 Front of the inner end piece

3.2 Rear of the inner end piece

3.3 contact surface of the inner end piece

3.4 contact surface of the inner end piece

3.5 Through hole in the inner end piece

3.6 Positioning surface of the inner end piece

3.7 Positioning surface of the inner end piece

3.8 paragraph at the inner end piece

3.9 internal thread of the inner end piece

4a; 4b outer tail

4a.1; 4b .1 Front of the outer end piece

4a.2; 4b.2 Back side of the outer tail

4a.3, 4b.3 contact surface of the outer end piece

4a.4; 4b.4 contact surface of the outer end piece

4a.5; 4b .5 Through hole in the outer end piece

4a.6; 4b.6 Positioning surface of the outer end piece

4a.7; 4b.7 Positioning surface of the outer end piece

4a.8; 4b .8 groove in the outer end piece

4b.9 Surface of the outer end piece

4b.10 Through hole in the outer end piece

4b.11 Through hole in the outer end piece

4b.12 Terminal surface of the outer end piece

5a; 5b, 6a; 6b core

5.1 front of the core

5.2 Back of the core

5.3 Through hole in the core

5.4 paragraph at the core

6.1 Front of the core

6.2 Back side of the core

6.3 Through hole in the core

7 threaded bush

7.1 Front of the threaded bush

7.2 Rear of the threaded bush Bund of the threaded bush

Shaft of the threaded bush

External thread of the threaded bush

Through hole in the threaded bushing

Key fissure of the threaded bush

threaded bolt

Head of threaded bolt

Shaft of the threaded bolt

External thread of the threaded bolt

Carrier pin

sleeve

Long hole in the sleeve

screw

Head of the screw

External thread of the screw

washer

guide tube

Drive unit for rotary motion

Bearing unit for rotary motion

Vacuum pump

pneumatic pipe or hose line pneumatic rotary union

sealing element

Longitudinal axis of the rod-shaped assembly

Claims

Claims 1. A bar-shaped assembly (1a; 1b) comprising:

a jacket (2a; 2b);

- At least one inner end piece (3a, 3b); and

- At least one outer end piece (4a, 4b);

wherein the shell (2a; 2b) consists of one or more layers of fabric glued or embedded in a plastic or adhesive;

wherein the shell (2a; 2b) at least partially has a tubular or tubular shape;

characterized in that:

- the inner end piece (3a; 3b) is connected to one end (2a.3; 2b.3) of the shell (2a; 2b) by the end (2a.3; 2b.3) of the shell (2a; 2b) at least one, consisting of the / the fabric layers, U-shaped Umkrempelung (2a.4; 2b.4) inwardly and with an inner surface (2.7), which lies in the Umkrempelung (2a.4, 2b.4), to a geometrically corresponding contact surface (3.3) of the inner end piece (3a, 3b) is brought into abutment; and

- the outer end piece (4a; 4b) is connected to the end (2a.3; 2b.3) of the shell (2a; 2b) by the end (2a.3; 2b.3) of the shell (2a; 2b) with an outer surface (2.6) lying in the region of the Umkrempelung (2a.4, 2b.4), on a geometrically corresponding contact surface (4a.3, 4b.3) of the outer end piece (4a, 4b) is brought into abutment.

2. Rod-shaped subassembly (1a, 1b) according to claim 1, characterized in that the end pieces (3a, 4a, 3b, 4b) are connected to one another by means of a threaded bush (7) or at least one screw (11), in particular along a longitudinal axis ( L) of the coat.

3. Rod-shaped assembly (1a, 1b) according to claim 1 or 2, characterized in that the end pieces (3a, 4a, 3b, 4b) are clamped together and the Umkrempelung (2a.4; 2b.4) between the end pieces ( 3a, 4a, 3b, 4b), that the end pieces (3a, 4a, 3b, 4b) press against the Umkrempelung (2a.4; 2b.4), in particular in the direction of / a longitudinal axis (L) of the shell. 4. Bar-shaped assembly (1a, 1b) according to any one of the preceding claims, characterized in that the Umkrempelung (2a.4, 2b.

4) is U-shaped with respect to a longitudinal axis (L) of the shell.

5. Bar-shaped subassembly (1a, 1b) according to one of the preceding claims, characterized in that at least one end (2a, 2b) of the jacket (2a, 2b) has two rebates (2a, 2b, 2a) .5; 2b.5), which together form an S-shape, in particular an S-shape in the radial direction orthogonal to the longitudinal axis (L) of the jacket.

6. Bar-shaped assembly (1a, 1b) according to any one of the preceding claims, characterized in that the Umkrempelung (2a.4, 2b.4) is materially connected to at least one of the end pieces (3a, 4a, 3b, 4b).

7. Rod-shaped assembly (lb) according to any one of the preceding claims, characterized in that at least one end piece (4b) in a surface (4b.9), which contacts the jacket (2b), at least one recess, opening or through-hole (4b .10).

8. Bar-shaped assembly (1a, 1b) according to any one of the preceding claims, characterized in that the Umkrempelung (2a.4; 2b.4) is circumferential, in particular rotationally symmetrical with respect to a / the longitudinal axis (L) of the

Jacket.

9. rod-shaped assembly (la; lb) according to any one of the preceding claims, characterized in that

- At least one core (5a, 5b, 6a, 6b) is located within the shell (2a, 2b), which on the inside (2.2) of the shell (2a; 2b), the core (5a; 5b, 6a; 6b) having at least one through-hole (5.3, 6.3); the at least one inner end piece (3a; 3b) has a through hole (3.5), the inner end piece (3a; 3b) coming into contact with the core (5a; 5b); and the at least one outer end piece (4a; 4b) has a through hole (4a.5; 4b.5).

Bar-shaped subassembly (1a; 1b) according to one of the preceding claims, characterized in that the inner end piece (3a; 3b) has at least one shoulder (3.8), the shoulder (3.8) being connected to the core (5a; 5b) in such a way engaged with the inner end piece (3a; 3b), that the core (5a; 5b) on the side with which the core adjoins the inner end piece (3a; 3b) faces the inner end piece (3a 3b) or that the at least one core (5a; 5b) has at least one shoulder (5.4), the shoulder (5.4) being engaged with an adjacent further core (6a; 6b) in such a way that both cores (5a) 5a, 5b, 6a, 6b) are centered on each other at the sides adjacent to each other.

11. Rod-shaped subassembly (1a) according to one of the preceding claims, characterized in that the outer end piece (4a; 4b) is screwed to the inner end piece (3a; 3b), the rod-shaped subassembly (1a) having at least one threaded bush (7). and at least one threaded bolt (8), wherein the threaded bolt (8) has a head (8.1) and an external thread (8.3), which external thread either to the head (8.1) or to a shaft (8.2) of

Threaded bolt is sufficient; and wherein the threaded bolt (8) is inserted into the threaded bushing (7) such that its head (8.1) points in the axial direction to a center of the assembly, wherein the diameter or width of the head (8.1) is greater than the diameter or Width of the through hole (7.6) of the threaded bushing (7) is.

12. Rod-shaped assembly (la) according to any one of the preceding claims, characterized in that the rod-shaped assembly (la) at least one driving pin (9) and at least one sleeve (10), wherein the driving pin (9) in a lateral bore of a / of the threaded bolt (8) of the rod-shaped assembly is inserted, which extends transversely to a longitudinal axis of the threaded bolt, and wherein the driving pin (9) engages in at least one elongated hole (10.1) of the sleeve (10), or that the rod-shaped assembly at least one threaded bolt ( 8) and at least one pushed onto the threaded bolt sleeve (10), wherein the threaded bolt and the sleeve each have at least one non-circular geometry.

13. Rod-shaped assembly (lb) according to any one of the preceding claims, characterized in that the outer end piece (4b) in addition to a centrally disposed through hole (4b.5) at least two further through holes (4b.11), which from a front ( 4b.1) extend to a rear side (4b.2) of the outer end piece (4b) and adjoin at least one flat connection surface (4b.12) of the outer end piece (4b) or at least partially surround it by the connection surface (4b.12) are.

14. Rod-shaped subassembly (1a, 1b) according to one of the preceding claims, characterized in that the outer end piece (4a, 4b) has a peripheral groove (4a, 8b, 4b, 8) which bears against the jacket (2a, 2b). adjoins and is arranged to receive a sealing element.

15. Bar-shaped assembly with Umkrempelung, in particular rod-shaped assembly (la; lb) according to one of the preceding claims, produced by connecting at least one end (2a.3; 2b.3) of a tubular or tubular shell (2a; 2b) of one or a plurality of fabric layers each having at least one inner end piece (3a; 3b) and at least one outer end piece (4a; 4b), wherein the end of the jacket in the form of at least one of the fabric layers, U-shaped Umkrempelung (2a.4; 2b.4) is formed inwardly, wherein the joining takes place in such a way that the jacket with an inner surface (2.7) in the region of Umkrempelung (2a.4; 2b.4) on a geometrically corresponding contact surface (3.3) of the inner end piece (3a 3b) is brought into abutment and with an outer surface (2.6) in the region of the Umkrempelung (2a.4, 2b.4) on a geometrically corresponding contact surface (4a.3, 4b.3) of the outer end piece (4a, 4b) Plant is brought.

A bar-shaped assembly (1a; 1b) comprising: a shell (2a; 2b);

- At least one inner end piece (3a, 3b); and at least one outer end piece (4a; 4b); wherein the shell (2a; 2b) consists of one or more layers of fabric glued or embedded in a plastic or adhesive;

wherein the shell (2a; 2b) at least partially has a tubular or tubular shape;

characterized in that the inner end piece (3a; 3b) is connected to one end (2a.3; 2b.3) of the shell (2a; 2b) by the end (2a.3; 2b.3) of the shell (2a 2b) comprises two U-shaped convolutions (2a.4, 2a.5, 2b.4, 2b.5) consisting of the fabric layers and having an inner surface (2.7, 2.9) which is in the region of at least one the Umkrempelungen (2a.4, 2a.5, 2b.4, 2b.5), is brought to a geometrically corresponding contact surface (3.3, 3.4) of the inner end piece (3a, 3b) for conditioning; and the outer end piece (4a; 4b) is connected to the end (2a.3; 2b.3) of the shell (2a; 2b) by forming the end (2a.3; 2b.3) of the shell (2a; 2b). with an outer surface (2.6, 2.8), which lies in the region of at least one of the rebates (2a.4, 2a.5, 2b.4, 2b.5), on a geometrically corresponding contact surface (4a.3, 4a.4, 4b .3, 4b.4) of the outer end piece (4a, 4b) is brought into abutment.

17. A method for producing a rod-shaped assembly (1a, 1b), in particular an assembly according to one of claims 1 to 16, the method comprising the following steps:

- mounting one or more cores (5a, 5b, 6a, 6b) adjacent one another on a guide tube (20);

Mounting at least one inner end piece (3a, 3b) on the guide tube (20), the inner end piece (3a, 3b) having a rear face (3.2) facing at least one core (5a, 5b, 6a, 6b);

Applying at least one fabric layer of a fabric to the at least one core (5a, 5b, 6a, 6b) and the inner end piece (3a, 3b), the fabric projecting beyond the inner end piece (3a; Bearing surface (3.3, 3.4, 4a.3, 4b.3, 4a.4, 4b.4) of the inner (3a, 3b) tail or an outer end piece (4a, 4b) is coverable;

Mounting at least one outer end piece (4a, 4b) on the guide tube (20), the outer end piece (4a, 4b) having a front face (4a.1, 4b.1) facing the inner end piece (3a, 3b);

- Moving the outer end piece (4a, 4b) inwardly to the inner end piece, wherein the protruding tissue in such a way between the outer (4a, 4b) and the inner end piece (3a, 3b) is pressed, that the tissue during the sliding of the outer end piece (4a, 4b) takes over the shape of the contact surfaces (3.3, 3.4, 4a.3, 4b.3, 4a.4, 4b.4) of the inner (3a, 3b) and outer end pieces (4a, 4b) and thereby between the End pieces at least one consisting of the tissue, U-shaped Umkrempelung (2a.4, 2b.4, 2a.5, 2b.5) is formed;

- Connecting the end pieces together or connecting the end pieces with the Umkrempelung or connecting the end pieces together and with the Umkrempelung; and removing the guide tube (20).

18. A method according to the preceding method claim, further comprising connecting the at least one inner end piece (3a, 3b) to the at least one outer end piece (4a, 4b) or bracing the end pieces against the overturning (2a.4, 2b.4). or screwing the end pieces with at least one screw (11) or a threaded bushing (7).

19. Use of one end of a shell consisting of at least one fabric layer (2a, 2b) of a rod-shaped assembly (1a, 1b), in particular a rod-shaped assembly according to one of the preceding claims, for forming a coupling to a connecting element or another rod-shaped assembly by means of at least one of the at least one fabric layer existing, U-shaped Umkrempelung (2a.4, 2b.4), with which two end pieces (3a, 4a, 3b, 4b) are connected, which are brought in on both sides inside and outside of the Umkrempelung ,