EP0046850B1 - Crosspiece for a connecting element - Google Patents

Crosspiece for a connecting element Download PDF

Info

Publication number
EP0046850B1
EP0046850B1 EP81105065A EP81105065A EP0046850B1 EP 0046850 B1 EP0046850 B1 EP 0046850B1 EP 81105065 A EP81105065 A EP 81105065A EP 81105065 A EP81105065 A EP 81105065A EP 0046850 B1 EP0046850 B1 EP 0046850B1
Authority
EP
European Patent Office
Prior art keywords
component
bolt eyes
bolt
web
eyes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81105065A
Other languages
German (de)
French (fr)
Other versions
EP0046850A1 (en
Inventor
Wolfgang Dipl.-Ing. Buchs
Rolf Ing. grad. Städtler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Priority to AT81105065T priority Critical patent/ATE16835T1/en
Publication of EP0046850A1 publication Critical patent/EP0046850A1/en
Application granted granted Critical
Publication of EP0046850B1 publication Critical patent/EP0046850B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/526—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits with adaptations not otherwise provided for, for connecting, transport; for making impervious or hermetic, e.g. sealings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7075—Interfitted members including discrete retainer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2142—Pitmans and connecting rods

Definitions

  • the invention relates to a web component for a connecting element of the type mentioned in the preamble of claim 1.
  • Such a web component is already known from DE-A 1 531 374, which is part of a fitting enclosing two loop-like blade roots of a rotor blade.
  • the loops of the blade roots, together with the bushings attached to the fitting, serve as bolt eyes for receiving bolts for fastening the rotor blades to the rotor head.
  • the fitting fixes the loops in their mutual position on the one hand and on the other hand protects the particularly highly loaded leaf root against damage caused by erosion etc. The fitting is therefore not used to transmit the forces to be introduced into the component by the connection element.
  • the advantages of the invention are, in particular, that the web component with its semicircular encirclement of the bolt eyes through the half-loop and its positive adaptation to the straps transmitting the forces and through the design of the support struts stiffen the connecting elements to a high degree.
  • This makes it possible to make connection elements with bolt eyes arranged far in front of the component plane dimensionally stable and to prevent them from being pushed away and buckling.
  • the web components are inserted into the connecting elements in the plane of the belts which are guided around the components and extend into the component, so that in general one connecting element is provided with two web components.
  • one or two half-loops are arranged according to further developments of the invention, the web component with two half-loops preferably being provided for two bolt eyes attached at different distances from the component.
  • the web components are provided at least on one side with a cover which connects the half-loops, support struts and the belts surrounding the bolt eyes.
  • the entire web component consists of fiber-reinforced plastic and all parts are connected to one another and to the belts by gluing.
  • a known connecting element 1 shown in FIGS. 1 and 2 which is designed without stiffeners, has two bolt eyes 2 and 3, which are arranged offset to one another.
  • the bolt eyes 2 are mounted in an upper belt 4 and have a kink in relation to the belt heavy line.
  • the bolt eyes 3 are almost in the line of gravity of a lower belt 5.
  • the belts 4 and 5 are integrated in a spar 6. If a pressure force 7 acts on the bolt eyes 2 and a tensile force 8 acts on the bolt eyes 3, there is a risk that the bolt eyes 2 dodge in the direction of an arrow 9, whereby the entire connection element 1 is deformed.
  • a web component 10 which is shown in FIGS. 3 and 4, is used to stiffen the connecting element 1.
  • Two web components 10 stiffen the connecting element 1 by approximately half-encompassing the bolt eyes 2 and 3 in the width of the straps 4 and 5 with the parts 11 and 12.
  • the web component 10 is not designed as a full part for reasons of a lighter construction, but is for connecting the parts 11 and 12, which comprise the bolt eyes 2 and 3 and for support against the spar 6, composed of support struts 10a, 10c and half-loops 10b, which are preferably consist of long fiber tapes impregnated with synthetic resin.
  • covers 13 are used for stiffening.
  • the material for the web component 10 is suitably laminated fiber-reinforced plastic.
  • the covers 13 can consist, for example, of a winding skin made of fiber-reinforced plastic with crosswise windings.
  • connection element 1 with the built-in web components 10.
  • the connection element is only stiffened between the bolt eyes 2 and 3, while the interior of the fork-like connection element remains free.
  • the sectional view of Fig. 7 shows that the straps 4 and 5 are made as loops of fiber-reinforced plastic, with a middle reinforcing strap 4a and 5a supporting the metal bushes 2a and 3a of the bolt eyes 2 and 3 under compressive forces.
  • the spaces between the belts 4 and 4a and 5 and 5a are filled with fillers 4b and 5b, z. B. filled in synthetic resin short fibers.
  • Reinforcing parts 14 are provided for better introduction of the forces from the connecting element 1 into the spar 6.
  • the web components 10, bolt eyes 2 and 3, covers 13 and belts 4 and 5 are interconnected by gluing.
  • FIGS. 8 to 12 Another embodiment is shown in FIGS. 8 to 12.
  • a connection element 20 which has two axially identical bolt eyes 21 with metal bushings 21a and a bolt eye 22 with a metal bushing 22a arranged between them.
  • two mirror-like web components 23 are provided, one of which is shown in FIGS. 10 and 11.
  • Each of the two webs 23 surrounds a bolt eye 21 in a semicircular shape and is supported with a cover 24 against the bolt eye 22.
  • the sectional view in FIG. 12 shows the fundamentally the same structure of the connecting element 20 and the webs 23, as described above with reference to FIG. 7.
  • connection elements can be provided with web components with at least two bolt eyes by at least roughly semicircularly enclosing them around a bolt eye and thus stiffening the connection element. It is also within the scope of the invention to use other materials. For reasons of lightweight construction, however, fiber-reinforced materials are preferably used, with the highest strengths being achieved with carbon fibers.

Abstract

A force or load transmitting connecting element is provided at its ends with bolt eyes for receiving bolts which secure the connecting element to another structural component also provided with complementary bolt eyes or for securing a wing to an aircraft body. The bolt eyes must be capable of taking up compression and/or tension loads. For this purpose at least one reinforcing bridging web is located between at least two bolt eyes. The bridging web extends with its main plane perpendicularly to the central axes of the bolt eyes and loops at least partially around at least one of the bolt eyes. The bolt eyes are constructed as metal bushings. Thus, the bridging web braces the bolt eyes relative to each other.

Description

Die Erfindung bezieht sich auf ein Stegbauteil für ein Anschlußelement der im Oberbegriff des Anspruchs 1 genannten Art.The invention relates to a web component for a connecting element of the type mentioned in the preamble of claim 1.

Durch die DE-A 1 531 374 ist bereits ein solcher Stegbauteil bekannt, der Teil eines zwei schlaufenartige Blattwurzeln eines Rotorblattes einfassenden Beschlages ist. Die Schlaufen der Blattwurzeln dienen dabei zusammen mit an dem Beschlag angesetzten Buchsen als Bolzenaugen zur Aufnahme von Bolzen zur Befestigung der Rotorblätter am Rotorkopf. Durch den Beschlag werden einerseits die Schlaufen in ihrer gegenseitigen Lage fixiert und andererseits wird die besonders hoch belastete Blattwurzel gegen Beschädigung durch Erosion usw. geschützt. Der Beschlag dient also nicht zur Weiterleitung der von dem Anschlußelement in das Bauteil einzuleitenden Kräfte.Such a web component is already known from DE-A 1 531 374, which is part of a fitting enclosing two loop-like blade roots of a rotor blade. The loops of the blade roots, together with the bushings attached to the fitting, serve as bolt eyes for receiving bolts for fastening the rotor blades to the rotor head. The fitting fixes the loops in their mutual position on the one hand and on the other hand protects the particularly highly loaded leaf root against damage caused by erosion etc. The fitting is therefore not used to transmit the forces to be introduced into the component by the connection element.

Es ist Aufgabe der Erfindung, ein Stegbauteil der eingangs genannten Art so auszubilden, daß er wesentlich zur Weiterleitung der auftretenden Zug- und Druckkräfte aus dem Anschlußelement in das Bauteil beiträgt. Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des kennzeichnenden Teils des Anspruchs 1 gelöst.It is an object of the invention to design a web component of the type mentioned at the outset in such a way that it contributes significantly to the transmission of the tensile and compressive forces which occur from the connecting element into the component. This object is achieved with the features of the characterizing part of claim 1.

Die Vorteile der Erfindung bestehen insbesondere darin, daß der Stegbauteil mit seiner halbkreisförmigen Umfassung der Bolzenaugen durch die Halbschlaufe und deren formschlüssigen Anpassung an die die Kräfte weiterleitenden Gurte sowie durch die Ausbildung der Stützstreben die Anschlußelemente in hohem Maße versteifen. Dadurch ist es möglich, auch Anschlußelemente mit weit vor der Bauteilebene angeordneten Bolzenaugen formsteif zu machen und sie vor dem Wegdrücken und Ausknicken zu bewahren.The advantages of the invention are, in particular, that the web component with its semicircular encirclement of the bolt eyes through the half-loop and its positive adaptation to the straps transmitting the forces and through the design of the support struts stiffen the connecting elements to a high degree. This makes it possible to make connection elements with bolt eyes arranged far in front of the component plane dimensionally stable and to prevent them from being pushed away and buckling.

Die Stegbauteile werden in die Anschlußelemente in der Ebene der um die Bauteile herumgeführten und sich in das Bauteil erstreckenden Gurte eingesetzt, so daß im allgemeinen ein Anschlußelement mit zwei Stegbauteilen versehen ist. Je nach Anzahl der dabei in einer Ebene vorhandenen Bolzenaugen sind nach Weiterbildungen der Erfindung eine oder zwei Halbschlaufen angeordnet, wobei der Stegbauteil mit zwei Halbschlaufen vorzugsweise für zwei mit unterschiedlichen Abstand zum Bauteil angebrachten Bolzenaugen vorgesehen ist. Zur weiteren Versteifung der Stegbauteile sind diese in Weiterbildung der Erfindung zumindest einseitig mit einer Abdeckung versehen, welche die Halbschlaufen, Stützstreben und die die Bolzenaugen umschließenden Gurte miteinander verbindet. In vorteilhafter Weise besteht der gesamte Stegbauteil aus faserverstärktem Kunststoff und sind alle Teile untereinander und mit den Gurten durch Kleben verbunden.The web components are inserted into the connecting elements in the plane of the belts which are guided around the components and extend into the component, so that in general one connecting element is provided with two web components. Depending on the number of bolt eyes present in one plane, one or two half-loops are arranged according to further developments of the invention, the web component with two half-loops preferably being provided for two bolt eyes attached at different distances from the component. To further stiffen the web components, in a further development of the invention they are provided at least on one side with a cover which connects the half-loops, support struts and the belts surrounding the bolt eyes. Advantageously, the entire web component consists of fiber-reinforced plastic and all parts are connected to one another and to the belts by gluing.

Nachfolgend werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die Zeichnung beschrieben. Es zeigen

  • Fig. 1 und 2 ein bekanntes Anschlußelement in Ansicht und Draufsicht mit vier Bolzenaugen;
  • Fig. 3 und 4 ein Stegbauteil in der Ansicht und im Schnitt zur Versteifung des Anschlußelementes nach den Fig. 1 und 2;
  • Fig. 5 und 6 das Anschlußelement nach den Fig. 1 und 2 mit zwischen den Bolzenaugen eingebauten Stegbauteilen entsprechend den Fig. 3 und 4;
  • Fig. 7 einen Schnitt durch das Anschlußelement nach den Fig. 5 und 6 entlang der Linie VII-VII der Fig. 6;
  • Fig. 8 und 9 ein weiteres Ausführungsbeispiel eines Anschlußelementes mit drei Bolzenaugen in Ansicht und Draufsicht mit zwei dafür passenden Stegbauteilen;
  • Fig. 10 und 11 einen der Stegbauteile für das Anschlußelement nach den Fig. 8 und 9 in Draufsicht und Seitenansicht und
  • Fig. 12 einen Schnitt durch das Anschlußelement nach den Fig. 8 und 9 entlang der Linie XII-XII der Fig. 9.
Exemplary embodiments of the invention are described below with reference to the drawing. Show it
  • Figures 1 and 2 a known connecting element in view and top view with four bolt eyes.
  • 3 and 4 a web component in view and in section for stiffening the connecting element according to FIGS. 1 and 2;
  • 5 and 6 the connecting element according to FIGS. 1 and 2 with web components installed between the bolt eyes corresponding to FIGS. 3 and 4;
  • 7 shows a section through the connecting element according to FIGS. 5 and 6 along the line VII-VII of FIG. 6;
  • 8 and 9 show a further exemplary embodiment of a connection element with three bolt eyes in a view and a top view with two corresponding web components;
  • 10 and 11 one of the web components for the connecting element according to FIGS. 8 and 9 in plan view and side view and
  • 12 shows a section through the connection element according to FIGS. 8 and 9 along the line XII-XII of FIG. 9.

Ein in den Fig. 1 und 2 dargestelltes bekanntes Anschlußelement 1, welches ohne Versteifungen ausgeführt ist, weist je zwei Bolzenaugen 2 und 3 auf, die versetzt zueinander angeordnet sind. Die Bolzenaugen 2 sind in einem oberen Gurt 4 gelagert und weisen gegenüber der Gurtschwerelinie einen Knick auf. Die Bolzenaugen 3 liegen fast in der Schwerelinie eines unteren Gurtes 5. Die Gurte 4 und 5 sind eingebunden in einen Holm 6. Wenn auf die Bolzenaugen 2 eine Druckkraft 7 und auf die Bolzenaugen 3 eine Zugkraft 8 einwirken, besteht die Gefahr, daß die Bolzenaugen 2 in Richtung eines Pfeiles 9 ausweichen, wodurch das ganze Anschlußelement 1 deformiert wird.A known connecting element 1 shown in FIGS. 1 and 2, which is designed without stiffeners, has two bolt eyes 2 and 3, which are arranged offset to one another. The bolt eyes 2 are mounted in an upper belt 4 and have a kink in relation to the belt heavy line. The bolt eyes 3 are almost in the line of gravity of a lower belt 5. The belts 4 and 5 are integrated in a spar 6. If a pressure force 7 acts on the bolt eyes 2 and a tensile force 8 acts on the bolt eyes 3, there is a risk that the bolt eyes 2 dodge in the direction of an arrow 9, whereby the entire connection element 1 is deformed.

Zur Aussteifung des Anschlußelementes 1 dient ein Stegbauteil 10, das in den Fig. 3 und 4 dargestellt ist. Zwei Stegbauteile 10 versteifen das Anschlußelement 1, indem sie in der Breite der Gurte 4 und 5 maulartig mit den Teilen 11 und 12 die Bolzenaugen 2 und 3 etwa halb umfassen. Der Stegbauteil 10 ist aus Gründen einer leichteren Bauweise nicht als Vollteil ausgeführt, sondern ist zur Verbindung der Teile 11 und 12, welche die Bolzenaugen 2 und 3 umfassen und zur Abstützung gegen den Holm 6 aus Stützstreben 10a, 10c und Halbschlaufen 10b zusammengesetzt, die vorzugsweise aus mit Kunstharz imprägnierten Langfaserbändern bestehen.A web component 10, which is shown in FIGS. 3 and 4, is used to stiffen the connecting element 1. Two web components 10 stiffen the connecting element 1 by approximately half-encompassing the bolt eyes 2 and 3 in the width of the straps 4 and 5 with the parts 11 and 12. The web component 10 is not designed as a full part for reasons of a lighter construction, but is for connecting the parts 11 and 12, which comprise the bolt eyes 2 and 3 and for support against the spar 6, composed of support struts 10a, 10c and half-loops 10b, which are preferably consist of long fiber tapes impregnated with synthetic resin.

Zur Versteifung dienen seitlich angebrachte Abdeckungen 13. Als Werkstoff für den Stegbauteil 10 wird zweckmäßig laminierter faserverstärkter Kunststoff verwendet. Die Abdeckungen 13 können zur besseren Aufnahme der auftretenden Stützkräfte beispielsweise aus einer mit kreuzweisen Wickelungen hergestellten Wickelhaut aus faserverstärktem Kunststoff bestehen.Laterally attached covers 13 are used for stiffening. The material for the web component 10 is suitably laminated fiber-reinforced plastic. To better absorb the supporting forces that occur, the covers 13 can consist, for example, of a winding skin made of fiber-reinforced plastic with crosswise windings.

Die Fig. 5 bis 7 zeigen das Anschlußelement 1 mit den eingebauten Stegbauteilen 10. Wie ersichtlich, ist das Anschlußelement nur zwischen den Bolzenaugen 2 und 3 versteift, während das Innere des gabelartigen Anschlußelementes frei bleibt. Die Schnittdarstellung der Fig. 7 zeigt, daß die Gurte 4 und 5 als Schlaufen aus faserverstärktem Kunststoff hergestellt sind, wobei noch je ein mittlerer Verstärkungsgurt 4a und 5a die Metallbuchsen 2a und 3a der Bolzenaugen 2 und 3 bei Druckkräften abstützen. Die Räume zwischen den Gurten 4 und 4a sowie 5 und 5a sind mit Füllkörpern 4b und 5b, z. B. in Kunstharz gebettete Kurzfasern, ausgefüllt. Zur besseren Einleitung der Kräfte aus dem Anschlußelement 1 in den Holm 6 sind Verstärkungsteile 14 vorgesehen. Die Stegbauteile 10, Bolzenaugen 2 und 3, Abdeckungen 13 und Gurte 4 und 5 sind untereinander durch Kleben verbunden.5 to 7 show the connection element 1 with the built-in web components 10. As can be seen, the connection element is only stiffened between the bolt eyes 2 and 3, while the interior of the fork-like connection element remains free. The sectional view of Fig. 7 shows that the straps 4 and 5 are made as loops of fiber-reinforced plastic, with a middle reinforcing strap 4a and 5a supporting the metal bushes 2a and 3a of the bolt eyes 2 and 3 under compressive forces. The spaces between the belts 4 and 4a and 5 and 5a are filled with fillers 4b and 5b, z. B. filled in synthetic resin short fibers. Reinforcing parts 14 are provided for better introduction of the forces from the connecting element 1 into the spar 6. The web components 10, bolt eyes 2 and 3, covers 13 and belts 4 and 5 are interconnected by gluing.

Ein anderes Ausführungsbeispiel ist in den Fig. 8 bis 12 dargestellt. Hier ist ein Anschlußelement 20 dargestellt, welches zwei achsengleiche Bolzenaugen 21 mit Metallbuchsen 21a und ein oberhalb zwischen diesen angeordnetes Bolzenauge 22 mit Metallbuchse 22a aufweist. Zur Versteifung zwischen diesen Bolzenaugen sind zwei spiegelbildlich gleiche Stegbauteile 23 vorgesehen, von denen einer in den Fig. 10 und 11 dargestellt ist. Jeder der beiden Stege 23 umgreift halbkreisförmig ein Bolzenauge 21 und stützt sich mit einer Abdeckung 24 gegen das Bolzenauge 22 ab. Die Schnittdarstellung in Fig. 12 zeigt den grundsätzlich gleichen Aufbau des Anschlußelementes 20 und der Stege 23, wie vorstehend anhand der Fig. 7 beschrieben.Another embodiment is shown in FIGS. 8 to 12. Here, a connection element 20 is shown, which has two axially identical bolt eyes 21 with metal bushings 21a and a bolt eye 22 with a metal bushing 22a arranged between them. For the stiffening between these pin eyes, two mirror-like web components 23 are provided, one of which is shown in FIGS. 10 and 11. Each of the two webs 23 surrounds a bolt eye 21 in a semicircular shape and is supported with a cover 24 against the bolt eye 22. The sectional view in FIG. 12 shows the fundamentally the same structure of the connecting element 20 and the webs 23, as described above with reference to FIG. 7.

In ähnlicher Art können auch anders geformte Anschlußelemente mit mindestens zwei Bolzenaugen mit Stegbauteilen versehen werden, indem diese zumindest um ein Bolzenauge etwa halbkreisförmig herumfassen und damit das Anschlußelement versteifen. Es liegt auch im Rahmen der Erfindung, andere Werkstoffe zu verwenden. Aus Gründen des Leichtbaus werden jedoch bevorzugt faserverstärkte Werkstoffe angewendet, wobei höchste Festigkeiten mit Kohlenstoffasern erzielt werden.In a similar way, differently shaped connection elements can be provided with web components with at least two bolt eyes by at least roughly semicircularly enclosing them around a bolt eye and thus stiffening the connection element. It is also within the scope of the invention to use other materials. For reasons of lightweight construction, however, fiber-reinforced materials are preferably used, with the highest strengths being achieved with carbon fibers.

Claims (7)

1. A web component (10, 23) for a connection element (1, 20) having axially-offset bolt eyes (2, 3, 21, 22) which introduce tensile and compressive forces into a component (6), which web component partially embraces at least one of the bolt eyes, characterised in that the web component comprises:
a) at least one half-loop (10b, 23b), which embraces one of the bolt eyes (2, 3, 21) in an approximately semicircular manner and adapts itself in a form-locking manner with a limb-like extension to a brace, belt or girdle (4, 5) which is conducted in a loop-like manner around the bolt eye and which extends into the component (6);
b) at least two supporting struts (10a, 10c, 23a, 23c), which have approximately half the width of the halfloop (10b, 23b), are applied to the limb-like extension of the half-loop and of which one of the supporting struts (10c, 23c) is applied transversely to the component (6) and is connected to said component (6) whereby the forces from the half- loop which embrace the bolt eye (2, 3, 21) are introduced into the component.

are introduced into the component.
2. A web component according to claim 1, characterised in that one half-loop (23b) is arranged so as to be connected by two supporting struts (23a, 23c) to the component (6).
3. A web component according to claim 1, characterised in that two half-loops (10b) for the approximately semicircular embracing of two bolt eyes (2, 3) are arranged at a different spacing with regard to the component (6) and are connected by three supporting struts (10a, 10c) one to another and to the component (6).
4. A web component according to claims 1 to 3, characterised in that the half-loops (10b, 23b) and supporting struts (10a, 10c, 23a, 23c) consist of fibre-reinforced plastics material.
5. A web component according to claims 1 to 4, characterised in that the half-loops (10b, 23b), the supporting struts (10a, 10c, 23a, 23c) and the belts (4, 5) surrounding the bolt eyes (2, 3, 21.) are at least on one side covered and connected to one another by a cover (13, 24).
6. A web component according to claim 5, characterised in that the covers (13, 24) consist of fibre-reinforced plastics material and are in this respect made from a coil or wound skin produced with crosswise windings, or from impregnated fabric.
7. A web component according to claims 1 to 6, characterised in that the half-loops (10b, 23b), the supporting parts (10a, 10c, 23a, 23c), the belts (4,5) and the covers (13,24) are connected to one another by glueing.
EP81105065A 1980-08-28 1981-06-30 Crosspiece for a connecting element Expired EP0046850B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81105065T ATE16835T1 (en) 1980-08-28 1981-06-30 BAR COMPONENT FOR A CONNECTION ELEMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3032443 1980-08-28
DE3032443A DE3032443C2 (en) 1980-08-28 1980-08-28 Component with a connection area with bolt eyes arranged offset

Publications (2)

Publication Number Publication Date
EP0046850A1 EP0046850A1 (en) 1982-03-10
EP0046850B1 true EP0046850B1 (en) 1985-12-04

Family

ID=6110602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81105065A Expired EP0046850B1 (en) 1980-08-28 1981-06-30 Crosspiece for a connecting element

Country Status (5)

Country Link
US (1) US4382712A (en)
EP (1) EP0046850B1 (en)
JP (1) JPS5773210A (en)
AT (1) ATE16835T1 (en)
DE (1) DE3032443C2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3032443C2 (en) * 1980-08-28 1982-08-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Component with a connection area with bolt eyes arranged offset
US4907733A (en) * 1988-03-28 1990-03-13 General Dynamics, Pomona Division Method for attaching carbon composites to metallic structures and product thereof
DE4203205C2 (en) * 1992-02-05 1995-12-07 Muehlbauer Luftfahrttechn Gmbh Propeller blade storage
US5376199A (en) * 1993-08-24 1994-12-27 Brunswick Corporation Method of making a composite filament reinforced clevis
DE19529706C2 (en) * 1995-08-11 2001-08-02 Deutsch Zentr Luft & Raumfahrt Wing structure, in particular for an aircraft
US8181422B2 (en) * 2008-12-23 2012-05-22 Spirit Aerosystems, Inc. Energy-absorbing structural composite element
US20100281635A1 (en) * 2009-05-05 2010-11-11 Tactical & Rescue Gear, Ltd. Connection assembly for a modular footbridge
DE102011084438B3 (en) 2011-10-13 2012-11-29 Airbus Operations Gmbh Producing component for connecting structures at crossing regions of component, comprises depositing first and second fibers on base, connecting them along overlap region, in which first and second fibers overlaps, and pivoting the fibers
DE102011084433A1 (en) * 2011-10-13 2013-04-18 Airbus Operations Gmbh Component, reinforcing member, structure assembly, aircraft or spacecraft and method
DE102011084441A1 (en) 2011-10-13 2013-04-18 Airbus Operations Gmbh Method for producing a component for connecting structures, components and structural arrangements
DE102011084472B3 (en) 2011-10-13 2013-01-03 Airbus Operations Gmbh Structural assembly for e.g. aircraft, has fiber section having outer rib in which attachment point is formed so that load applied on attachment point formed in outer rib is transferred by another fiber section to support element
CA2972085C (en) * 2017-06-28 2018-05-08 John Rene Spronken Assembly for lifting or supporting a load, and members and connectors for use in same
CN109404487B (en) * 2018-11-21 2024-02-13 航宇救生装备有限公司 High-strength connecting mechanism of large-bearing air bag
ES2906760T3 (en) * 2019-02-19 2022-04-20 Muelles Y Ballestas Hispano Alemanas Projects S L Stiffened panel in composite materials and manufacturing procedure of said panel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166700A (en) * 1967-06-30 1969-10-08 Boelkow Gmbh Improvements in or relating to the Mounting of Rotor Blades of Rotor Craft
DE1531374A1 (en) * 1967-09-12 1970-01-29 Messerschmitt Boelkow Blohm Rotor blade made of fiber-reinforced plastic with a loop-like blade root

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7413C (en) * A. Fl'CHS, Mechaniker, in Canstatt (Württemberg) Door lifter
US1338836A (en) * 1917-10-16 1920-05-04 Melville W Mix Airplane or analogous strut member
US1941348A (en) * 1931-11-07 1933-12-26 Curtiss Aeroplane & Motor Co Joint fitting
DE1689061U (en) * 1954-03-30 1954-12-16 Josef Brand ARTICULATED CAP.
DE1693763U (en) * 1954-08-19 1955-02-24 Hermann Schwarz K G CAPS SUITABLE FOR PREPARING IN STRUCTURAL STRUCTURES.
DE1198310B (en) * 1958-05-30 1965-08-12 Aloys Vanwersch Expansion cap for mining operations
DE1214184B (en) * 1958-05-30 1966-04-14 Ludwig Vanwersch Securing device for wedges and hinge pins of expansion caps
FR1602051A (en) * 1968-10-18 1970-10-05
DE2104935C3 (en) * 1971-02-03 1980-02-07 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Pre-pledging cap arrangement
GB1430990A (en) * 1973-05-31 1976-04-07 Hanger & Co Ltd J E Knee joints for leg irons
FR2252916B1 (en) * 1973-11-30 1978-02-24 Aerospatiale
DE2645174C2 (en) * 1976-10-07 1982-08-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Rotor head for a non-flapping and swivel-jointless rotor
US4113910A (en) * 1977-04-27 1978-09-12 Rockwell International Corporation Composite load coupler for reinforcing composite structural joints
US4275122A (en) * 1978-07-17 1981-06-23 Gkn Transmissions Limited Shaft and universal joint member assembly
US4200946A (en) * 1978-11-16 1980-05-06 Westland Aircraft Limited Load-supporting structures
DE3032443C2 (en) * 1980-08-28 1982-08-12 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Component with a connection area with bolt eyes arranged offset

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1166700A (en) * 1967-06-30 1969-10-08 Boelkow Gmbh Improvements in or relating to the Mounting of Rotor Blades of Rotor Craft
DE1531374A1 (en) * 1967-09-12 1970-01-29 Messerschmitt Boelkow Blohm Rotor blade made of fiber-reinforced plastic with a loop-like blade root

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Dubbel, Band 2, S. 504 *

Also Published As

Publication number Publication date
ATE16835T1 (en) 1985-12-15
DE3032443C2 (en) 1982-08-12
DE3032443A1 (en) 1982-03-04
EP0046850A1 (en) 1982-03-10
JPS5773210A (en) 1982-05-07
US4382712A (en) 1983-05-10

Similar Documents

Publication Publication Date Title
DE2451860C3 (en) Rotor blade for rotary wing aircraft
EP0046850B1 (en) Crosspiece for a connecting element
DE4329744C1 (en) Wing having wing shells made of fibre composite materials, especially carbon fibre composite materials (CFCs), for aircraft
EP0758607B1 (en) Shear-proof aircraft wing box formed from fibre reinforced material
DE2611235C2 (en) Rotor blades for rotary wing aircraft, in particular helicopters
DE3338661C2 (en)
EP2363599B1 (en) Rotor blade for a wind turbine, wind turbine and method for manufacturing a rotor blade
EP0065087B1 (en) Flexing spring of compound fibre material
DE2521363C2 (en) Helicopter rotor blade
DE1531374A1 (en) Rotor blade made of fiber-reinforced plastic with a loop-like blade root
EP0019041B1 (en) Non-hinged rotor
DE2826656C3 (en) Connection element for a wing made of fiber-reinforced plastic
DE102007011618A1 (en) Crash paddle for reinforcing a primary fuselage structure of an aircraft
EP0019691A1 (en) Composite rotor blade
DE2648343B2 (en) Flapping and swivel-less rotor for rotary wing aircraft
DE2645174C2 (en) Rotor head for a non-flapping and swivel-jointless rotor
DE3131660A1 (en) "FORCE TRANSFER"
DE2758086C2 (en) Rotor for a rotary wing aircraft with a hingeless blade connection
DE2638148C3 (en) Rotor for a rotary wing aircraft
EP0165394B1 (en) Element for transmitting torques
DE2733101A1 (en) FLIP AND SWIVELLESS ROTOR
AT406825B (en) HOCKEY RACKETS
EP0195453B1 (en) Wishbone for a sail board
DE2063167C3 (en)
DE3302770A1 (en) Energy-absorbing laminate

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811217

AK Designated contracting states

Designated state(s): AT CH FR GB IT LI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

AK Designated contracting states

Designated state(s): AT CH FR GB IT LI

REF Corresponds to:

Ref document number: 16835

Country of ref document: AT

Date of ref document: 19851215

Kind code of ref document: T

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19860526

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19870630

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19900702

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910630

Ref country code: CH

Effective date: 19910630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930603

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST