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EP0229606A1 - Joint connection for space frames - Google Patents

Joint connection for space frames Download PDF

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Publication number
EP0229606A1
EP0229606A1 EP86890346A EP86890346A EP0229606A1 EP 0229606 A1 EP0229606 A1 EP 0229606A1 EP 86890346 A EP86890346 A EP 86890346A EP 86890346 A EP86890346 A EP 86890346A EP 0229606 A1 EP0229606 A1 EP 0229606A1
Authority
EP
European Patent Office
Prior art keywords
constriction
insertion parts
rod
end section
node
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.)
Granted
Application number
EP86890346A
Other languages
German (de)
French (fr)
Other versions
EP0229606B1 (en
Inventor
Erich Frantl
Peter Hofstätter
Werner Frantl
Willibald Zemler
Albert P. Dipl.-Ing. Raunicher
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.)
BEER, MANFRED, DIPL.-ING.
Original Assignee
"conproject" Handelsvertretung und Techn Buro fur Maschinenbau Frantl & Co Ohg
FRANTL CONPROJEKT
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 "conproject" Handelsvertretung und Techn Buro fur Maschinenbau Frantl & Co Ohg, FRANTL CONPROJEKT filed Critical "conproject" Handelsvertretung und Techn Buro fur Maschinenbau Frantl & Co Ohg
Publication of EP0229606A1 publication Critical patent/EP0229606A1/en
Application granted granted Critical
Publication of EP0229606B1 publication Critical patent/EP0229606B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
    • 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
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1933—Struts specially adapted therefor of polygonal, e.g. square, 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
    • 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
    • E04B2001/1972—Welded or glued connection
    • 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
    • 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
    • Y10T403/44—Three or more members connected at single locus
    • Y10T403/443—All encompassed
    • 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
    • Y10T403/47—Molded joint
    • Y10T403/473—Socket or open cup for bonding material
    • 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
    • Y10T403/49—Member deformed in situ
    • Y10T403/4924—Inner member is expanded by longitudinally inserted element

Definitions

  • the invention relates to a knot connection for rod structures with more than two bars connected in a knot, which are designed as tubes and protrude through openings in a metal box that can be filled with a hardening sealing compound and end in the metal box with a constricting, constricted end section.
  • the invention has for its object to provide a node connection for rod structures, in particular of steel structures, which has a higher strength.
  • the load-bearing capacity in particular due to tensile forces, should not be less in the critical, constricted end section than in the case of an un weakened pipe cross section and deformations of the end section and a loosening of the positive connection with the casting compound should be excluded.
  • the slide-in parts can be clamped to one another by a tension member which is variable in length in the tube axis.
  • the slight springback of the deformed tube wall that occurs when the constriction is produced causes a gap between the insertion parts and the inside of the constricted tube wall.
  • FIG. 1 shows the node connection in view and partly in section along the axis of one of the rods connected to form a node
  • FIGS. 2 to 4 show cross sections through various embodiments of a detail of the node connection along line II-II of FIG. 1.
  • a node connection comprises a metal box 1 with a convex central part approximately in the form of a flattened ball. From the middle section there are openings 2 of the metal box 1 from step-like tapered projections 3.
  • an opening 2 for a rod 4 in the form of a square tube and a further opening 2 for a rod 4 in the form of a round tube are shown.
  • An advantage of the knot connection according to the invention is that the rods 4 do not need to have the same cross section.
  • Diagonal bars can e.g. B. weaker than belt rods.
  • the bars 4 in the metal box 1 end with a form-fitting end section which is constricted. From the sectional representations of constricted end sections of rods 4 in FIGS. 2 to 4 it can be seen that the constriction is formed with a folding of the tube wall without weakening or changing its cross-sectional area.
  • each constricted end section of the rods 4 two oppositely conical insertion parts 5, 6 are arranged on opposite sides of the constriction.
  • the constriction is adapted to the shape of the insertion parts 5, 6.
  • the two insertion parts 5, 6 are longitudinally displaceably clamped together by a tension member 7 located in the tube axis in the form of a high-strength screw or several such screws (FIG. 4) within the end section of the rod 4, so that they contact the inner wall of the tube on opposite sides of the constriction.
  • a filling opening 8 is provided for filling with the hardening casting compound.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Fishing Rods (AREA)
  • Body Structure For Vehicles (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

In a joint including a plurality of bars linked thereby, the ends of the bars are inserted through apertures in a metal casing which is filled with a hardening grout. The ends of the bars received in the casing have necked-down portions having two tapered members therein which are oriented with their tapering sections facing in opposition and which are pretensioned toward each other by a tensioning member to contact the walls of the necked down portion in flatwise abutting engagement, in opposite sections of the necked down portion.

Description

Die Erfindung betrifft eine Knotenverbindung für Stab­werke mit mehr als zwei in einem Knoten verbundenen Stä­ben, die als Rohre ausgebildet sind und durch Öffnungen eines mit einer erhärtenden Vergußmasse füllbaren Metall­kastens ragen und im Metallkasten mit einem fromschluß­bildenden, eingeschnürten Endabschnitt enden.The invention relates to a knot connection for rod structures with more than two bars connected in a knot, which are designed as tubes and protrude through openings in a metal box that can be filled with a hardening sealing compound and end in the metal box with a constricting, constricted end section.

Bei derartigen Knotenverbindungen, wie sie z. B. aus der GB-A-27l 709 bekannt geworden sind, stellt der einge­schnürte Endabschnitt bei jedem Stab bzw. Rohr eine Schwachstelle dar. Es ist eine entsprechend große Dimen­sionierung der Stäbe notwendig, damit diese hohe Zugkräf­te oder Biegemomente aufnehmen können. Größere, auf die Stäbe wirkende Zugkräfte können den Endabschnitt des Sta­bes verformen und es geht der Formschluß mit der Verguß­masse verloren. Diesselbe Problematik existiert grund­sätzlich auch bei der Knotenverbindung, wie sie aus der AT-A 339 094 bekannt ist.With such node connections, as z. B. have become known from GB-A-27l 709, the constricted end portion of each rod or tube is a weak point. A correspondingly large dimensioning of the rods is necessary so that they can absorb high tensile forces or bending moments. Larger tensile forces acting on the rods can deform the end section of the rod and the form fit with the sealing compound is lost. The same problem basically also exists with the node connection, as is known from AT-A 339 094.

Der Erfindung liegt die Aufgabe zugrunde, eine Knoten­verbindung für Stabwerke, insbesondere von Stahlbaukon­struktionen, bereitzustellen, die eine höhere Festigkeit hat. Die Belastbarkeit, insbesondere durch Zugkräfte, soll im kritischen, eingeschnürten Endabschnitt nicht kleiner sein als bei einem ungeschwächten Rohrquerschnitt und Verformungen des Endabschnittes und eine Lockerung des Formschlusses mit der Vergußmasse sollen ausgeschlos­sen sein.The invention has for its object to provide a node connection for rod structures, in particular of steel structures, which has a higher strength. The load-bearing capacity, in particular due to tensile forces, should not be less in the critical, constricted end section than in the case of an un weakened pipe cross section and deformations of the end section and a loosening of the positive connection with the casting compound should be excluded.

Diese Aufgabe wird bei einer Knotenverbindung der ein­gangs genannten Art dadurch gelöst, daß im eingeschnürten Endabschnitt des Stabes zwei entgegengesetzt konische Einschubteile jeweils an gegenüberliegenden Seiten der Einschnürung unter Vorspannung anliegend angeordnet sind und daß die Einschnürung der Form der Einschubteile ange­paßt ist. Von außen einwirkende Stabkräfte können den auf diese Weise von innen abgestützen Endabschnitt des Stabes niemals deformieren, so daß ein absolut sicherer Form­schluß mit der Vergußmasse erreicht wird. Die Einschub­teile stellen das in den Endabschnitten der Stäbe ver­bleibende Gegenwerkzeug beim Herstellen der Einschnürung mittels eines oder mehrerer Preßwerkzeuge dar; die Ein­schnürung ist demgemäß der Form der Einschubteile ange­paßt.This object is achieved with a knot connection of the type mentioned in that in the constricted end section of the rod two oppositely conical insertion parts are each arranged on opposite sides of the constriction under pretension and that the constriction is adapted to the shape of the insertion parts. External forces acting on the can never deform this way from the end of the rod, which is supported from the inside, so that an absolutely secure positive connection with the sealing compound is achieved. The insertion parts represent the counter-tool remaining in the end sections of the rods when producing the constriction by means of one or more pressing tools; the constriction is accordingly adapted to the shape of the insert parts.

In einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß die Einschubteile durch ein in der Rohr­achse befindliches, längenveränderliches Zugglied gegen­seitig verspannbar sind. Die beim Herstellen der Ein­schnürung eintretende geringfügige Rückfederung der verformten Rohrwand bewirkt einen Spalt zwischen den Ein­schubteilen und der Innenseite der eingeschnürten Rohr­wand. Durch Verringern der Länge des die beiden Ein­schubteile in der Rohrachse verbindenden Zuggliedes, z. B. durch Anziehen der als solches Zugglied dienenden Schraube oder mehrere solcher Schrauben, kann dieser Spalt geschlossen und der Formschluß mit der Vergußmasse noch sicherer gestaltet werden. Ein Teil der Stabkraft wird außerdem vom Zugglied aufgenommen und dadurch der Rohrquerschnitt im wichtigen Bereich des Endabschnittes entlastet.In a preferred embodiment of the invention it is provided that the slide-in parts can be clamped to one another by a tension member which is variable in length in the tube axis. The slight springback of the deformed tube wall that occurs when the constriction is produced causes a gap between the insertion parts and the inside of the constricted tube wall. By reducing the length of the tension member connecting the two insertion parts in the tube axis, e.g. B. by tightening the serving as such tension member screw or more such screws, this gap can be closed and the positive connection with the potting compound can be made even more secure. A part of the rod force is also absorbed by the tension member, thereby relieving the pipe cross-section in the important area of the end section.

Die Erfindung wird an Hand der in der Zeichnung bei­spielsweise dargestellten Knotenverbindung näher er­läutert. Es zeigt Fig. l die Knotenverbindung in Ansicht und teilweise im Schnitt entlang der Achse eines der zu einem Knoten verbundenen Stäbe und die Fig. 2 bis 4 Querschnitte durch verschiedene Ausführungsformen eines Details der Knotenverbindung entlang der Linie II-II der Fig. l.The invention is explained in more detail with reference to the node connection shown in the drawing, for example. 1 shows the node connection in view and partly in section along the axis of one of the rods connected to form a node, and FIGS. 2 to 4 show cross sections through various embodiments of a detail of the node connection along line II-II of FIG. 1.

Eine Knotenverbindung umfaßt einen Metallkasten l mit konvexem Mittelteil etwa in Form einer abgeflachten Ku­gel. Vom Mittelteil gehen sternförmig sich zu Öffnungen 2 des Metallkastens l treppenförmig verjüngende Vorsprünge 3 aus.A node connection comprises a metal box 1 with a convex central part approximately in the form of a flattened ball. From the middle section there are openings 2 of the metal box 1 from step-like tapered projections 3.

In der rechten - ungeschnittenen - Hälfte der Fig. l ist eine Öffnung 2 für einen Stab 4 in Form eines Vierkant­rohres sowie eine weitere Öffnung 2 für einen Stab 4 in Form eines Rundrohres dargestellt. Ein Vorteil der erfin­dungsgemäßen Knotenverbindung besteht darin, daß die Stä­be 4 nicht denselben Querschnitt zu haben brauchen. Dia­gonalstäbe können z. B. schwächer als Gurtstäbe ausge­bildet werden.In the right - uncut - half of FIG. 1, an opening 2 for a rod 4 in the form of a square tube and a further opening 2 for a rod 4 in the form of a round tube are shown. An advantage of the knot connection according to the invention is that the rods 4 do not need to have the same cross section. Diagonal bars can e.g. B. weaker than belt rods.

In der linken Hälfte der Fig. l sind zwei zu dem Knoten verbundene Stäbe 4 eingezeichnet, deren Achse in der Zeichnungsebene liegt. Dabei ist am oberen Teil der lin­ken Hälfte der Fig. l die Füllung des Metallkastens l eingezeichnet. Im unteren Teil der linken Hälfte der Fig. l ist diese Füllung nicht dargestellt und der Endab­schnitt des dort angeordneten Stabes 4 ist nicht ge­schnitten dargestellt.In the left half of FIG. 1, two rods 4 are drawn to form the node, the axis of which lies in the plane of the drawing. The filling of the metal box 1 is shown on the upper part of the left half of FIG. This filling is not shown in the lower part of the left half of FIG. 1 and the end section of the rod 4 arranged there is not shown in section.

Man sieht, daß die Stäbe 4 im Metallkasten l mit einem formschlußbildenden Endabschnitt enden, der eingeschnürt ist. Aus den Schnittdarstellungen eingeschnürter Endab­schnitte von Stäben 4 in den Fig. 2 bis 4 ist ersicht­lich, daß die Einschnürung mit einer Faltung der Rohrwand ohne Schwächung oder Veränderung ihrer Querschnittsfläche ausgebildet ist.It can be seen that the bars 4 in the metal box 1 end with a form-fitting end section which is constricted. From the sectional representations of constricted end sections of rods 4 in FIGS. 2 to 4 it can be seen that the constriction is formed with a folding of the tube wall without weakening or changing its cross-sectional area.

In jedem eingeschnürten Endabschnitt der Stäbe 4 sind zwei entgegengesetzt konische Einschubteile 5, 6 an gegenüberliegenden Seiten der Einschnürung angeordnet. Die Einschnürung ist der Form der Einschubteile 5, 6 an­gepaßt. Die beiden Einschubteile 5, 6 sind durch ein in der Rohrachse befindliches Zugglied 7 in Form einer hoch­festen Schraube oder mehrerer solcher Schrauben (Fig. 4) innerhalb des Endabschnittes des Stabes 4 längsverschieb­bar zusammengespannt, so daß sie an der Rohrinnenwand an gegenüberliegenden Seiten der Einschnürung satt anliegen.In each constricted end section of the rods 4, two oppositely conical insertion parts 5, 6 are arranged on opposite sides of the constriction. The constriction is adapted to the shape of the insertion parts 5, 6. The two insertion parts 5, 6 are longitudinally displaceably clamped together by a tension member 7 located in the tube axis in the form of a high-strength screw or several such screws (FIG. 4) within the end section of the rod 4, so that they contact the inner wall of the tube on opposite sides of the constriction.

An der Oberseite des Metallkastens l ist eine Füllöffnung 8 für eine Füllung mit der erhärtenden Vergußmasse vor­gesehen.At the top of the metal box 1, a filling opening 8 is provided for filling with the hardening casting compound.

Claims (3)

1. Knotenverbindung für Stabwerke mit mehr als zwei in einem Knoten verbundenen Stäben (4), die als Rohre ausgebildet sind und durch Öffnungen eines mit einer erhärtenden Vergußmasse füllbaren Metallkastens ragen und im Metallkasten (l) mit einem formschlußbilden­den, eingeschnürten Endabschnitt enden, dadurch gekennzeichnet, daß im eingeschnürten Endabschnitt des Stabes (4) zwei entgegengesetzt konische Ein­schubteile (5, 6) jeweils an gegenüberliegenden Sei­ten der Einschnürung unter Vorspannung anliegend angeordnet sind und daß die Einschnürung der Form der Einschubteile (5, 6) angepaßt ist.1. Node connection for rod structures with more than two rods (4) connected in a node, which are designed as tubes and protrude through openings in a metal box that can be filled with a hardening casting compound and end in the metal box (l) with a positive-locking, constricted end section, characterized that in the constricted end section of the rod (4) two oppositely conical insertion parts (5, 6) are each arranged on opposite sides of the constriction under pretension and that the constriction is adapted to the shape of the insertion parts (5, 6). 2. Knotenverbindung nach Anspruch l, dadurch gekenn­zeichnet, daß die Einschubteile (5, 6) durch ein in der Rohrachse befindliches, längenveränderliches Zugglied (7) gegenseitig verspannbar sind.2. Knot connection according to claim l, characterized in that the insertion parts (5, 6) are mutually braced by a tension member (7) located in the tube axis. 3. Knotenverbindung nach Anspruch l oder 2, dadurch gekennzeichnet, daß die Einschnürung als eine Faltung der Rohrwand ohne Veränderung ihrer Querschnitts­fläche ausgebildet ist.3. Node connection according to claim l or 2, characterized in that the constriction is formed as a fold of the tube wall without changing its cross-sectional area.
EP86890346A 1986-01-14 1986-12-18 Joint connection for space frames Expired - Lifetime EP0229606B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0006886A AT383843B (en) 1986-01-14 1986-01-14 NODE CONNECTION FOR RODWORKS
AT68/86 1986-01-14

Publications (2)

Publication Number Publication Date
EP0229606A1 true EP0229606A1 (en) 1987-07-22
EP0229606B1 EP0229606B1 (en) 1990-03-21

Family

ID=3480679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890346A Expired - Lifetime EP0229606B1 (en) 1986-01-14 1986-12-18 Joint connection for space frames

Country Status (8)

Country Link
US (1) US4822198A (en)
EP (1) EP0229606B1 (en)
AT (2) AT383843B (en)
CA (1) CA1284265C (en)
DE (1) DE3669744D1 (en)
ES (1) ES2013999B3 (en)
GR (1) GR3000396T3 (en)
ZA (1) ZA869702B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD941669S1 (en) * 2019-10-02 2022-01-25 Mirrormate, Llc Dovetail, element for mirror frame attachment
USD942255S1 (en) * 2019-10-02 2022-02-01 Mirrormate, Llc Dovetail, element for mirror frame attachment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822899C (en) * 1949-08-06 1951-11-29 Dalmine Societa Per Azioni Steel frame construction
WO1982000863A1 (en) * 1980-09-05 1982-03-18 Johnsen A A coupling

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR380236A (en) * 1907-07-10 1907-12-03 Alphonse Corduant Device for strengthening the tubes of bicycle forks
US3713677A (en) * 1971-02-04 1973-01-30 Preez J Du Tubing clamps
DE2362592A1 (en) * 1973-12-17 1975-06-19 Adolff Emil Fa Economically mass produced angle fittings for tent frames - has spherical light-weight connecting body with radial bores for tent rods
AT339094B (en) * 1974-02-20 1977-09-26 Frantl Conprojekt NODE CONNECTION FOR FRAMEWORKS
DE2615796A1 (en) * 1976-04-10 1977-10-27 Josef Serwe Framework tie rod connection system - uses bolts retained inside rods by expanders for connection to cage using locknuts
US4101730A (en) * 1977-02-25 1978-07-18 Gould Inc. Termination for stranded cable
ZA782992B (en) * 1978-05-24 1979-07-25 J Ceglowski Joint and framework
GB2065820B (en) * 1979-11-26 1983-07-20 Design Research Marketing Pty Nodal joint for space frames

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822899C (en) * 1949-08-06 1951-11-29 Dalmine Societa Per Azioni Steel frame construction
WO1982000863A1 (en) * 1980-09-05 1982-03-18 Johnsen A A coupling

Also Published As

Publication number Publication date
GR3000396T3 (en) 1991-06-28
US4822198A (en) 1989-04-18
ZA869702B (en) 1987-08-26
CA1284265C (en) 1991-05-21
EP0229606B1 (en) 1990-03-21
DE3669744D1 (en) 1990-04-26
ATA6886A (en) 1987-01-15
ATE51261T1 (en) 1990-04-15
AT383843B (en) 1987-08-25
ES2013999B3 (en) 1990-06-16

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