EP0158149B1 - Connector for the releasable coupling of cylindrical strut members - Google Patents

Connector for the releasable coupling of cylindrical strut members Download PDF

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Publication number
EP0158149B1
EP0158149B1 EP85102943A EP85102943A EP0158149B1 EP 0158149 B1 EP0158149 B1 EP 0158149B1 EP 85102943 A EP85102943 A EP 85102943A EP 85102943 A EP85102943 A EP 85102943A EP 0158149 B1 EP0158149 B1 EP 0158149B1
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EP
European Patent Office
Prior art keywords
cylindrical
bushing
ring
ball
junction
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 - Lifetime
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EP85102943A
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German (de)
French (fr)
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EP0158149A1 (en
Inventor
Rolf D. Jachmann
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Jachmann Ursula
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Jachmann Ursula
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Publication date
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Priority to AT85102943T priority Critical patent/ATE53620T1/en
Publication of EP0158149A1 publication Critical patent/EP0158149A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/196—Screw connections with axis parallel to the main axis of the strut
    • 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
    • Y10T403/34—Branched
    • Y10T403/341—Three or more radiating members
    • Y10T403/342—Polyhedral
    • 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
    • Y10T403/34—Branched
    • Y10T403/341—Three or more radiating members
    • Y10T403/344—Plural pairs of axially aligned members
    • 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
    • Y10T403/51—Joints and connections including spaced, diverse connections
    • 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
    • Y10T403/7077—Interfitted members including discrete retainer for telescoping members

Definitions

  • the invention relates to a nodal connection for detachably connectable cylindrical rods, consisting of a nodal ball and radially screwable into this, with one end insertable and fixable threaded bolts in the end recesses of the rods, in which the recesses in one, fixed to the end of the Rod-connected cylinder liner are arranged, on the ring end facing the rod of which the head of the threaded bolt rests, and on the ring end facing outwards, the ring end of a connecting bush which can be pushed onto the threaded bolt and is non-rotatably connectable to the latter, the other ring end surface of which can be connected Coupling ball is in contact.
  • This training is intended for use in trusses.
  • cylindrical rods are connected to one another by a threaded bolt which can be radially screwed into the respective junction ball and which can be inserted and fixed with its other end in end recesses of the rod.
  • junction connection is based on the task of creating a junction connection in which the axial length of the cylindrical rods corresponds to the distance between the two junction balls to be connected when inserted, the possibility being created after inserting the bar between the two junction balls Then screw the threaded bolt into the junction balls.
  • DE-B-27 36 635 discloses a node connection which can generally be used to build trusses of the type in question, in which the rod ends each have a central recess for the threaded bolt, the head of which is directed towards the rod Ring face of the cylinder liner rests.
  • the annular end of a connecting sleeve can be placed on the outward-facing annular end of this cylinder liner, which can be pushed onto and rotatably connected to the threaded bolt protruding from the cylinder liner.
  • the nodal connection between the nodal ball and the cylindrical rod is made by screwing the threaded bolt, which is loosely displaceable in the rod end and the connecting sleeve and protrudes with its threaded end out of the connecting sleeve, into the threaded hole of the nodal ball, by turning the connecting sleeve.
  • This rotation pulls the coupling ball, the connecting sleeve and the cylinder sleeve firmly connected to the end of the cylindrical rod axially against each other and, as a result, lie firmly on top of each other with the respective ring ends.
  • the main disadvantage of this training is that this technically complex and optically not always satisfactory training form of the connecting elements must be used for all cylindrical rods of the built framework.
  • the solution to the above object according to the invention is that the cylinder liner and the connecting liner are rotatably connected to one another by a ring shoulder of the other liner that can be inserted into a central bore and axially fixed against one another by a spring washer ring slot lock ind and the head of the threaded bolt is acted upon by a cylinder spring supported against the cylinder liner, the connecting sleeve 1 and the cylindrical rod having the same diameter.
  • FIG. 1 shows the junction connection in axial section
  • FIG. 2 shows another embodiment of the connection also in axial section.
  • the guide bushing consists of the part bushes 1 and 2. Both part bushings 1 and 2 are rotatably connected to one another on their mutually facing end faces in that the part bushing 1 (conn dungsbüchse) has a ring approach la inserted into a central bore 2a of the other sub-bush 2 (cylinder bush). Bore 2a and ring extension la have radial ring slots into which a spring ring 3 is inserted.
  • the bolt 4 guided in the two part bushes 1 and 2 has a section 4a provided with an external thread, a polygonal section section 4b and a cylinder section section 4c with an annular collar end 4d.
  • the bolt 4 is guided with the polygonal section 4b in the central recess 1b of the partial sleeve 1, the cross section of which corresponds to the polygonal profile. With its cylindrical profile section 4c, the bolt 4 is guided in the part sleeve 2, which has a correspondingly cylindrical central recess 2c, while the annular collar end 4d of the bolt 4 is guided in a recess 2c of the part sleeve 2, which has a correspondingly larger diameter, and is acted upon by a spring 5, which is supported on a bottom cover 6, which is inserted into the front end of the sub-sleeve 2.
  • the sub-sleeve 1 also has incisions lf for the attack of a turning key on its circumference.
  • D B corresponds to the outer knife D s of the bar indicated by 7, in whose front recess the partial sleeve 2 is inserted here.
  • the end face of the partial sleeve 1 facing away from the partial sleeve 2 has a concave recess 1g corresponding to the spherical section of the junction ball K.
  • Rod 7 and part bushing 2 are here axially immovably connected to one another by ring beads of rod 7 which are pressed into ring grooves 2k of part bushing 2.
  • threaded bores for retaining screws can also be provided in the rod, the end faces of which can be moved against the side walls of the annular grooves 2k provided in the circumference of the part sleeve.
  • the rod 7 is brought into its intended position in front of the junction ball K with the pin 4 pressed in the direction of the arrow against the action of the spring 5 into the partial sleeve 1.
  • the section 4a of the bolt 4, which is provided with the external thread, is pressed under the action of the spring 5 against the corresponding threaded hole of the junction ball K and screwed into the bushing 1 while rotating it.
  • This design allows rods 7, the longitudinal axes of which extend at an acute angle, to be connected to the node ball K.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Rehabilitation Tools (AREA)
  • Fishing Rods (AREA)
  • Earth Drilling (AREA)

Abstract

A junction piece for releasably connecting rod-shaped structural elements 7, the junction piece consisting of a junction ball K and a pin element 4 to be radially screwed into the ball K. The pin elements 4 are of cylindrical shape and can be inserted with a cylindrical section into front end recesses of the structural elements 7 and can be fixed axially thereof. In this case, the cylindrical section is made to correspond to an axial guide casing for the pin element 4. The guide casing can be rotated and fixed in the front end recess of the rod-shaped structural elements 7, whereas the pin element 4 is arranged to be prevented from any rotation in the guide casing. It is, however, allowed to be axially displaced against the action of the spring 5.

Description

Die Erfindung bezieht sich auf eine Knotenpunktverbindung für lösbar miteinander verbindbare zylinderförmige Stäbe, bestehend aus einer Knotenpunktkugel und radial in diese einschraubbaren, mit einem Ende in stirnseitige Ausnehmungen der Stäbe einsteck- und festlegbaren Gewindebolzen, bei der die Ausnehmungen in einer, fest mit dem Ende der Stäbe verbundenen Zylinderbüchse angeordnet sind, an deren, in den Stab gerichteter Ringstirn der Kopf des Gewindebolzens anliegt, und auf deren, nach aussen gerichteter Ringstirn die Ringstirn einer auf den Gewindebolzen aufschieb- und drehfest mit diesem verbindbaren Verbindungsbüchse auflegbar ist, deren andere Ringstirnfläche an der Kupplungskugel anliegt.The invention relates to a nodal connection for detachably connectable cylindrical rods, consisting of a nodal ball and radially screwable into this, with one end insertable and fixable threaded bolts in the end recesses of the rods, in which the recesses in one, fixed to the end of the Rod-connected cylinder liner are arranged, on the ring end facing the rod of which the head of the threaded bolt rests, and on the ring end facing outwards, the ring end of a connecting bush which can be pushed onto the threaded bolt and is non-rotatably connectable to the latter, the other ring end surface of which can be connected Coupling ball is in contact.

Diese, aus DE-B-2 736 635 bekannte Ausbildung ist für die Verwendung in Fachwerken bestimmt. Bei einer aus DE-A-2 420 864 bekannten Ausbildung werden zylinderförmige Stäbe durch einen Gewindebolzen, der in die jeweilige Knotenpunktkugel radial einschraubbar und mit seinem anderen Ende in stirnseitige Ausnehmungen des Stabes einsteck- und festlegbar ist, miteinander verbunden. Da der Gewindebolzen bei dieser Ausbildungsform zunächst mit der Knotenpunktkugel verbunden werden muß und dann erst in den zylinderförmigen Stab eingesteckt werden kann, ergibt sich, insb. bei komplizierteren Fachwerkskonstruktionen häufig die Schwierigkeit, daß ein Stab zwischen zwei bereits in der Konstruktion befindliche Knotenpunktkugeln eingesetzt werden muß, und es dazu notwendig wird, eine Reihe der bereits bestehenden Verbindungen axial auseinanderzuziehen, damit die beiden in die Enden des einzusetzenden Stabes einzustekkenden Gewindebolzenenden der bereits in die jeweiligen Knotenpunktkugeln eingeschraubten Gewindebolzen in die Enden des Stabes eingesteckt werden können. Der erfindungsgemäßen Ausbildung der Knotenpunktverbindung liegt die Aufgabe zugrunde, eine Knotenpunktverbindung zu schaffen, bei der die axiale Länge der zylinderförmigen Stäbe beim Einsetzen dem Abstand der beiden zu verbindenden Knotenpunktkugeln entspricht, wobei nach Einsetzen des Stabes zwischen die beiden Knotenpunktkugeln die Möglichkeit geschaffen wird, die jeweiligen Gewindebolzen nachträglich in die Knotenpunktkugeln einzuschrauben.This training, known from DE-B-2 736 635, is intended for use in trusses. In a configuration known from DE-A-2 420 864, cylindrical rods are connected to one another by a threaded bolt which can be radially screwed into the respective junction ball and which can be inserted and fixed with its other end in end recesses of the rod. Since the threaded bolt must first be connected to the nodal ball in this form of training and can then only be inserted into the cylindrical rod, there is often the difficulty, particularly in the case of more complicated truss constructions, that a rod must be inserted between two nodal balls that are already in the construction , and it becomes necessary to axially pull apart a number of the existing connections so that the two threaded bolt ends to be inserted into the ends of the rod to be inserted and the threaded bolts already screwed into the respective node balls can be inserted into the ends of the rod. The design of the junction connection according to the invention is based on the task of creating a junction connection in which the axial length of the cylindrical rods corresponds to the distance between the two junction balls to be connected when inserted, the possibility being created after inserting the bar between the two junction balls Then screw the threaded bolt into the junction balls.

Aus der DE-B-27 36 635 ist eine allgemein zum Aufbau von Fachwerken der in Rede stehenden Art verwendbare Knotenpunktverbindung bekannt, bei der mit den Stabenden jeweils eine zentrale Ausnehmung für den Gewindebolzen aufweist, der dabei mit seinem Kopf an der in den Stab gerichteten Ringstirn der Zylinderbüchse anliegt. An die nach außen gerichtete Ringstirn dieser Zylinderbüchse ist die Ringstirn einer Verbindungsbüchse anlegbar, die auf den aus der Zylinderbüchse herausragenden Gewindebolzen aufschieb- und drehfest mit diesem verbindbar ist. Die Knotenpunktverbindung zwischen Knotenpunktkugel und zylinderförmigem Stab wird dabei dadurch hergestellt, daß der lose in dem Stabende und der Verbindungsbüchse verschiebbare Gewindebolzen, der mit seinem Gewindeende aus der Verbindungsbüchse herausragt, in die Gewindebohrung der Knotenpunktkugel eingeschraubt wird, und zwar durch Drehen der Verbindungsbüchse. Durch diese Drehung werden die Kubplungskugel, die Verbindungsbüchse und die fest mit dem Ende des zylinderförmigen Stabes verbundenen Zylinderbüchse axial gegeneinander gezogen und liegen im Ergebnis fest mit den jeweiligen Ringstirnen aufeinander. Es wird dadurch eine sehr biegefeste Verbindung geschaffen. Der wesentliche Nachtei dieser Ausbildung besteht darin, daß für sämtliche zylinderförmigen Stäbe des aufgebauten Fachwerkes diese technisch aufwendige und optisch nicht immer befriedigende Ausbildungsform der Verbindungselemente verwendet werden muß.DE-B-27 36 635 discloses a node connection which can generally be used to build trusses of the type in question, in which the rod ends each have a central recess for the threaded bolt, the head of which is directed towards the rod Ring face of the cylinder liner rests. The annular end of a connecting sleeve can be placed on the outward-facing annular end of this cylinder liner, which can be pushed onto and rotatably connected to the threaded bolt protruding from the cylinder liner. The nodal connection between the nodal ball and the cylindrical rod is made by screwing the threaded bolt, which is loosely displaceable in the rod end and the connecting sleeve and protrudes with its threaded end out of the connecting sleeve, into the threaded hole of the nodal ball, by turning the connecting sleeve. This rotation pulls the coupling ball, the connecting sleeve and the cylinder sleeve firmly connected to the end of the cylindrical rod axially against each other and, as a result, lie firmly on top of each other with the respective ring ends. This creates a very rigid connection. The main disadvantage of this training is that this technically complex and optically not always satisfactory training form of the connecting elements must be used for all cylindrical rods of the built framework.

Ausgehend von dieser bekannten Form einer Knotenpunktverbindung besteht die erfindungsgemäße Lösung der obengenannten Aufgabe darin, daß die Zylinderbüchse und die Verbindungsbüchse durch einen in eine zentrale Bohrung der einen Büchse einsetzbaren Ringansatz der anderen Büchse drehbar miteinander verbunden und durch eine Federring-Ringschlitzsicherung axial gegeneinander festgelegts ind und der Kopf des Gewindebolzens durch eine gegen die Zylinderbüchse abgestützte Zylinderfeder beaufschlagt wird, wobei die Verbindungsbüchse 1 und der zylinerförmige Stab gleiche Durchmesser aufweisen.Starting from this known form of a node connection, the solution to the above object according to the invention is that the cylinder liner and the connecting liner are rotatably connected to one another by a ring shoulder of the other liner that can be inserted into a central bore and axially fixed against one another by a spring washer ring slot lock ind and the head of the threaded bolt is acted upon by a cylinder spring supported against the cylinder liner, the connecting sleeve 1 and the cylindrical rod having the same diameter.

Die Beaufschlagung des Kopfes des Gewindebolzens durch eine Zylinderfeder ist an sich aus der FR-A-21 55 412 bekannt. Die dort wiedergegebene Knotenpunktverbindung weist aber weder die Merkmale der Verbindung nach der DE-A-2 420 864 noch nach der DE-B-27 36 635 auf, da hier die Gewindebolzen für den allgemeinen Aufbau des Fachwerks mit ihren Köpfen fest in die zylinderförmigen Stäbe eingeschweißt sind, und soweit die Gewindebolzen axial beweglich und federbeaufschlagt in den Stabenden verschiebbar sind, für das Einschrauben der Gewindeenden der Gewindebolzen in die Kupplungskugeln eine radiale Durchgangsbohrung in den Kupplungskugeln vorgesehen sein muß, damit von der dem Einschraubende des Gewindebolzens abgewandten Seite her mit Hilfe eines Werkzeugs (Schraubenzieher) ein entsprechender Schlitz in der Stirnfläche des Einschraubendes des Gewindebolzens erreicht werden kann.The application of the head of the threaded bolt by a cylindrical spring is known per se from FR-A-21 55 412. The node connection shown there has neither the features of the connection according to DE-A-2 420 864 nor according to DE-B-27 36 635, since here the threaded bolts for the general structure of the framework with their heads firmly in the cylindrical rods are welded, and insofar as the threaded bolts are axially movable and spring-loaded displaceable in the rod ends, a radial through hole must be provided in the coupling balls for screwing the threaded ends of the threaded bolts into the coupling balls, so that from the side facing away from the screwing end of the threaded bolt, using a Tool (screwdriver) a corresponding slot can be achieved in the end face of the screw-in end of the threaded bolt.

Die Erfindung wird anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. In der Zeichnung zeigen Fig. 1 die Knotenpunktverbindung im Axialschnitt und Fig. 2 eine andere Ausbildungsform der Verbindung ebenfalls im Axialschnitt.The invention is explained in more detail with reference to the embodiment shown in the drawing. In the drawing, FIG. 1 shows the junction connection in axial section and FIG. 2 shows another embodiment of the connection also in axial section.

Wie aus Fig. 1 zu ersehen, besteht die Führungsbüchse aus den Teilbüchsen 1 und 2. Beide Teilbüchsen 1 und 2 sind an ihren einander zugewandten Stirnseiten dadurch drehbar miteinander verbunden, daß die Teilbüchse 1 (Verbindungsbüchse) einen in eine zentrale Bohrung 2a der anderen Teilbüchse 2 (Zylinderbüchse) eingesteckten Ringansatz la aufweist. Bohrung 2a und Ringansatz la weisen radiale Ringschlitze auf, in die ein Federring 3 eingesetzt ist. Der in den beiden Teilbüchsen 1 und 2 geführte Bolzen 4 weist einen mit einem Außengewinde versehenen Abschnitt 4a, einen Mehreckprofilabschnitt 4b und einen Zylinderprofilabschnitt 4c mit Ringbundende 4d auf. Der Bolzen 4 ist mit dem Mehreckprofilabschnitt 4b in der zentralen Ausnehmung Ib der Teilbüchse 1 geführt, deren Querschnitt dem Mehreckprofil entspricht. Mit seinem Zylinderprofilabschnitt 4c ist der Bolzen 4 in der, eine entsprechend zylindrische Zentralausnehmung 2c aufweisenden Teilbüchse 2 geführt, während das Ringbundende 4d des Bolzens 4 in einer im Durchmesser entsprechend größeren Ausnehmung 2c der Teilbüchse 2 geführt ist, und von einer Feder 5 beaufschlagt wird, die sich an einem Bodendeckel 6 abstützt, der in das Stirnende der Teilbüchse 2 eingesetzt ist. Die Teilbüchse 1 weist an ihrem Umfang ferner Einschnitte lf für den Angriff eines Drehschlüssels auf. Ihr Durchmesser DB entspricht dem Außenmesser Ds des mit 7 angedeuteten Stabes, in dessen stirnseitiger Ausnehmung hier die Teilbüchse 2 eingesteckt ist. Die der Teilbüchse 2 abgewandte Stirnseite der Teilbüchse 1 weist eine dem Kugelabschnitt der Knotenpunktkugel K entsprechende Konkave Ausnehmung 1g auf. Stab 7 undTeilbüchse2sind-hier-durch in Ringnuten 2k der Teilbüchse 2 eingedrückte Ringsicken des Stabes 7 axial unverschiebbar miteinander verbunden. Statt dieser Verbindung können in dem Stab auch - wie bekannt - Gewindebohrungen für Halteschrauben vorgesehen werden, deren Stirnenden gegen die Seitenwände der im Umfang der Teilbüchse vorgesehenen Ringnuten 2k bewegbar sind. Der Stab 7 wird mit in Richtung des eingezeichneten Pfeils gegen die Wirkung der Feder 5 in die Teilbüchse 1 hineingedrücktem Bolzen 4 in seine vorgesehene Stellung vor der Knotenpunktkugel K gebracht. Der mit dem Außengewinde versehene Abschnitt 4a des Bolzens 4 wird unter Wirkung der Feder 5 gegen das entsprechende Gewindeloch der Knotenpunktkugel K gedrückt und unter Drehen der Teilbüchse 1 in dieses eingeschraubt. Sobald dabei der entsprechende Kugelabschnitt der Kugel K an der Innenwandung der konkaven Ausnehmung 1g der Teilbüchse 1 anliegt, zieht der Bolzen 4 beide Büchsen 1 und 2 gemeinsam radial gegen den Umfang der Knotenpunktkugel K, weil der Ringrand des Ringbundes 4d sich dabei an den Ringabsatz 2 e der zentralen Bohrung 2d der Teilbüchse 2 anliegt.As can be seen from FIG. 1, the guide bushing consists of the part bushes 1 and 2. Both part bushings 1 and 2 are rotatably connected to one another on their mutually facing end faces in that the part bushing 1 (conn dungsbüchse) has a ring approach la inserted into a central bore 2a of the other sub-bush 2 (cylinder bush). Bore 2a and ring extension la have radial ring slots into which a spring ring 3 is inserted. The bolt 4 guided in the two part bushes 1 and 2 has a section 4a provided with an external thread, a polygonal section section 4b and a cylinder section section 4c with an annular collar end 4d. The bolt 4 is guided with the polygonal section 4b in the central recess 1b of the partial sleeve 1, the cross section of which corresponds to the polygonal profile. With its cylindrical profile section 4c, the bolt 4 is guided in the part sleeve 2, which has a correspondingly cylindrical central recess 2c, while the annular collar end 4d of the bolt 4 is guided in a recess 2c of the part sleeve 2, which has a correspondingly larger diameter, and is acted upon by a spring 5, which is supported on a bottom cover 6, which is inserted into the front end of the sub-sleeve 2. The sub-sleeve 1 also has incisions lf for the attack of a turning key on its circumference. Their diameter D B corresponds to the outer knife D s of the bar indicated by 7, in whose front recess the partial sleeve 2 is inserted here. The end face of the partial sleeve 1 facing away from the partial sleeve 2 has a concave recess 1g corresponding to the spherical section of the junction ball K. Rod 7 and part bushing 2 are here axially immovably connected to one another by ring beads of rod 7 which are pressed into ring grooves 2k of part bushing 2. Instead of this connection, threaded bores for retaining screws can also be provided in the rod, the end faces of which can be moved against the side walls of the annular grooves 2k provided in the circumference of the part sleeve. The rod 7 is brought into its intended position in front of the junction ball K with the pin 4 pressed in the direction of the arrow against the action of the spring 5 into the partial sleeve 1. The section 4a of the bolt 4, which is provided with the external thread, is pressed under the action of the spring 5 against the corresponding threaded hole of the junction ball K and screwed into the bushing 1 while rotating it. As soon as the corresponding spherical section of the ball K abuts the inner wall of the concave recess 1g of the partial bush 1, the bolt 4 pulls both bushes 1 and 2 together radially against the circumference of the nodal ball K, because the ring edge of the ring collar 4d adjoins the ring shoulder 2 e of the central bore 2d of the sub-sleeve 2 rests.

Bei der Ausbildung nach Fig. 2 verläuft der Außenumfang U der Teilbüchse 1' in Richtung axial von der anderen Teilbüchse 2 weg konisch verjüngt bei Verkleinerung des Durchmessers der konkaven Ausnehmungen 1g'an der Stirnseite der Teilbüchse 1'. Diese Ausbildung erlaubt es, Stäbe 7, deren Längsachsen in einem spitzen Winkel verlaufen, an die Knotenpunktkugel K anzuschließen.In the embodiment according to FIG. 2, the outer circumference U of the partial bush 1 'tapers axially in the direction axially away from the other partial bush 2 while reducing the diameter of the concave recesses 1g' on the end face of the partial bush 1 '. This design allows rods 7, the longitudinal axes of which extend at an acute angle, to be connected to the node ball K.

Claims (1)

  1. A junction piece for rod-shaped cylindrical elements (7), releasably connectable, consisting of a junction ball (K) and threaded pin elements (4) to be radially screwed into said junction ball and with their other ends to be insertable and fixable into the front end recesses of the cylindrical elements (7), whereby the recesses are arranged in a cylindrical bushing (2), the head end (4a) of the pin element (4) is laying on a ring-front-end of that bushing (2), directed into the cylindrical element (7), and on the other ring-front-end of the bushing (2), directed to the outside, a ring-front-end of a connecting bushing (1) can be placed, which is shiftable on, and fixable to the threaded pin element (4) whereby the ring-front-end of the connecting bushing (1) is laying at the junction ball (K), characterized by the fact that the cylindrical bushing (1) and the connecting bushing (1) are connected together rotatingly by an annular projection (1a) of one of the cylindrical bushing (2) which can be inserted in a central bore hole (2a) of the other bushing (1), fixed axially one to another by an annular slot-lockwasher set (3) whereby the head-end (4a) of the threaded pin element (4) is engaged by a cylindrical spring, and the diameters of connecting bushing (1) and of cylindrical element (7) are equal.
EP85102943A 1984-03-17 1985-03-14 Connector for the releasable coupling of cylindrical strut members Expired - Lifetime EP0158149B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102943T ATE53620T1 (en) 1984-03-17 1985-03-14 NODE CONNECTION FOR DETACHABLE CONNECTABLE CYLINDER-SHAPED RODS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843409916 DE3409916A1 (en) 1984-03-17 1984-03-17 NODE POINT CONNECTION FOR LOESBAR CONNECTABLE CYLINDRICAL ROD
DE3409916 1984-03-17

Publications (2)

Publication Number Publication Date
EP0158149A1 EP0158149A1 (en) 1985-10-16
EP0158149B1 true EP0158149B1 (en) 1990-06-13

Family

ID=6230862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102943A Expired - Lifetime EP0158149B1 (en) 1984-03-17 1985-03-14 Connector for the releasable coupling of cylindrical strut members

Country Status (7)

Country Link
US (1) US4664550A (en)
EP (1) EP0158149B1 (en)
JP (1) JPS616411A (en)
AT (1) ATE53620T1 (en)
CA (1) CA1241177A (en)
DD (1) DD233405A5 (en)
DE (2) DE3409916A1 (en)

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JPS6351539A (en) * 1986-08-19 1988-03-04 川鉄建材工業株式会社 Joint apparatus of structural member
US4789264A (en) * 1986-09-25 1988-12-06 Galan Inchaurbe Jose M J Pipe socket connection for a spacial structure
NL8602487A (en) * 1986-10-02 1988-05-02 Cornelis Franciscus De La Haye COUPLING FOR CONNECTING TWO OR MORE RODS.
DK164230C (en) * 1987-05-26 1992-10-26 Syma Intercontinental Sa CONNECTION ELEMENT
GB2248901B (en) * 1988-02-23 1992-09-02 New York Plastic Co Pte Ltd Improvements relating to space frames
GB2223289B (en) * 1988-07-26 1992-09-02 Standards Inst Singapore A joint system
DE3910106A1 (en) * 1989-03-29 1990-10-25 Connec Ag ASSEMBLY KIT FOR A STRUCTURE OR SCAFFOLDING TO CONNECT TO BARS AND COUPLINGS
GB9003269D0 (en) * 1990-02-13 1990-04-11 Hodgetts Paul A Hexagonal sleeved space frame joint
DE4004639A1 (en) * 1990-02-15 1991-12-12 Sigrid Reelitz Quickly assembled furniture kit - consists of multi-angled connection and lengthwise piece with transverse struts
CH680303A5 (en) * 1990-02-16 1992-07-31 Syma Intercontinental Sa
DE4006836A1 (en) * 1990-03-05 1992-02-13 Sigrid Reelitz Quick assembly furniture unit - has polygonal connecting pieces and supporting lengthwise struts, with frame
DE4028314A1 (en) * 1990-09-06 1992-03-12 Mero Raumstruktur Gmbh & Co SCREW CONNECTION BETWEEN RODS AND NODE PIECES OF A SPACIOUS FRAME OR THE LIKE
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US8585312B1 (en) * 2010-06-16 2013-11-19 Kid Knowledge, Inc. Three dimensional polyhedron frame structure
DE102016120378A1 (en) * 2016-10-25 2018-04-26 Daroslav Matekalo Supporting structure element, supporting structure and furniture
CN107542747B (en) * 2017-09-01 2019-05-07 宁波正宇紧固件有限公司 A kind of high-strength vehicle fastener
US11359364B1 (en) * 2020-12-07 2022-06-14 Lockheed Martin Corporation Systems and methods for joining space frame structures
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Also Published As

Publication number Publication date
CA1241177A (en) 1988-08-30
DE3409916A1 (en) 1985-09-26
US4664550A (en) 1987-05-12
ATE53620T1 (en) 1990-06-15
DD233405A5 (en) 1986-02-26
JPS616411A (en) 1986-01-13
EP0158149A1 (en) 1985-10-16
DE3578194D1 (en) 1990-07-19

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