EP0916777B1 - Verbindungszusammenbau - Google Patents

Verbindungszusammenbau Download PDF

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Publication number
EP0916777B1
EP0916777B1 EP97119263A EP97119263A EP0916777B1 EP 0916777 B1 EP0916777 B1 EP 0916777B1 EP 97119263 A EP97119263 A EP 97119263A EP 97119263 A EP97119263 A EP 97119263A EP 0916777 B1 EP0916777 B1 EP 0916777B1
Authority
EP
European Patent Office
Prior art keywords
elements
assembly
positions
elongate
ridges
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
Application number
EP97119263A
Other languages
English (en)
French (fr)
Other versions
EP0916777A1 (de
Inventor
Maurice Gerardus Maria Van Giezen
Paul Martens
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.)
Greif International Holding BV
Original Assignee
Koninklijke Emballage Industrie Van Leer BV
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 Koninklijke Emballage Industrie Van Leer BV filed Critical Koninklijke Emballage Industrie Van Leer BV
Priority to DK97119263T priority Critical patent/DK0916777T3/da
Priority to AT97119263T priority patent/ATE232569T1/de
Priority to ES97119263T priority patent/ES2192643T3/es
Priority to EP97119263A priority patent/EP0916777B1/de
Priority to DE69719036T priority patent/DE69719036T2/de
Publication of EP0916777A1 publication Critical patent/EP0916777A1/de
Application granted granted Critical
Publication of EP0916777B1 publication Critical patent/EP0916777B1/de
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
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section

Definitions

  • the present invention relates to a connection assembly for connecting two elongate elements at an intersection.
  • Such connections are useful in various commercial applications where one element such as a tube or a rod is to be connected at an angle with another tube.
  • Commercial applications would include the production of grids, fences, cages. Applications are also foreseen in the furniture and aircraft industries as well as in the packaging and transportation of freight.
  • German Patent DE-C-33 44 351 discloses a grid arrangement wherein plate-like carrier rods are provided with oval holes therethrough.
  • Cross-connector tubes are passed through the holes in perpendicular arrangement. After having passed through the holes, the tubes are mechanically deformed on either side of the hole to produce a connection at the intersection.
  • GB 2 303 653 A shows a connecting assemlly and a grid construction according to the preambles of claims 1 and 17.
  • connection assembly In many applications, it is desirable to have a lightweight construction but one of optimum mechanical strength. In such cases, it would be desirable to have a connection assembly at the point of intersection which can sustain high loads and which does not deteriorate under fatigue. Moreover, the volume taken up by the connection should be kept to a minimum to satisfy space requirements.
  • the connection assembly particularly when used to form a grid, should be simple and inexpensive to manufacture, but at the same time be reliable in terms of quality of the connection. Moreover, the connection assembly should be suitable for series production.
  • connection assembly is provided as set forth in claim 1, which satisfies the above criteria.
  • the connection assembly comprises first and second elongate elements connected to one another at an intersection.
  • the elements preferably are connected at right angles, although other angles are possible.
  • the first elongate element has a receiving opening formed therein through which the second elongate element passes so as to penetrate through the first element.
  • the first and second elements are then connected to one another at one or more positions within the region of their intersection. If the two elements are made of metal, the connection at the one or more positions may be performed by resistance welding.
  • the connections can be made ultrasonic welding or induction welding.
  • the connections can also be made by melt bonding or with an adhesive.
  • the two elements may be appropriately deformed within the region of intersection so as to produce a form fit connection.
  • the inner diameter of the receiving hole of the first tube is preferably dimensioned with respect to the outer diameter of the second tube such that it passes therethrough by overcoming a slight frictional force.
  • the second tube therefore has a non-positive (frictional) connection with the first tube when mounted. This arrangement provides for stability of the connection against bending forces which will arise at the intersection. Although this arrangement is preferred a frictional fit is not necessary for the present invention.
  • the central axes of the two elements intersect one another and form a plane.
  • the outer surfaces of the smaller diameter second element defines two tangential planes, which are both parallel to the plane defined by the centre axes of the two elements.
  • the elements are connected to one another at two positions at these tangential planes, where the outer surface of the second element lies opposed to an inner surface of the first element.
  • the first element comprises a tubular structure and is provided with one or more ridges formed along its interior.
  • the crests of these inner ridges will contact or lie close to the outer surface of the second element when penetrated through the receiving opening.
  • the locations where the one or more ridges either contact or lie close to the outer surface provides the one or more contact positions.
  • the first and second elements used in constructing the present connection assembly can be of various shapes.
  • the first and second elongate elements can be provided in tubular form with a cross-section being substantially circular, oval, square, triangular or rectangular.
  • the first element can be provided as an open profile, such as a U-shaped or a C-shaped profile with the receiving opening provided in the side legs of the profile.
  • the second elongate element be provided in the form of a plate which passes through a corresponding slot in the first element as the receiving opening.
  • connection assembly of the present invention provides good mechanical strength and reliability of the connection, while at the same time allowing a simple and inexpensive manufacturing process.
  • additional stability against bending moments arising within the plane of the two elements is provided.
  • the one or more positions at which the elements are then connected enhances the strength against deformation out of the plane of the two elements.
  • first and second elongate elements 1, 2 are placed to intersect one another by penetration of the second element 2 through an opening 3 in the first element 1.
  • the receiving opening 3 will be formed such that a right-angle intersection results, although this orientation is not necessary.
  • the receiving opening 3 can be formed such that the centre axis x of the first element intersects with the centre axis y of the second element 2. Again, this arrangement is preferred, however, the centre axes x, y of the two elements may be off-set if desired for certain applications.
  • the first and second elements 1, 2 shown in the embodiment of Fig. 1 are tubular members having a circular cross-section.
  • the diameter d2 of the second tube is smaller than the diameter d1 of the first tube.
  • the outer diameter d2 of the second element is 20% to 30% smaller than the outer diameter d1 of the first element 1.
  • the diameter of the first tube 1 could be 22 mm with the diameter of the second tube 2 being 16 mm.
  • Fig. 2 shows an embodiment in which the first element 1 comprises a tubular structure of substantially rectangular cross-section.
  • the first and/or second elements could be tubular structures having a circular, oval, square, triangular or rectangular cross-section.
  • the first and second elements 1, 2 are connected to one another at one or more positions 4 in the region of their intersection.
  • the first and second tubes are connected at two positions at either side of the intersection indicated by the reference numeral 4.
  • the elements 1, 2 are metal tubes as shown in Figs. 1 and 2
  • the second tube 2 is inserted and properly positions with respect to the first tube. Welding is then performed at the positions 4 under sufficient pressure to urge the two sides of the first tube 1 into contact with the outer wall of the second tube 2 under formation of the weld.
  • the second tube 2 requires no further processing once purchased from the manufacturer.
  • the first tube 1 need only be provided with the receiving hole at the proper orientation and spacing.
  • the inner dimension of the receiving opening 3 formed in the first element 1 is preferably sized with respect to the outer dimension d2 of the second element 2 such that there is no play between the receiving opening 3 and the second element 2.
  • the second element 2 is then inserted through the opening 3 under the application of force to overcome friction between the outer surface of the second element 2 and the inner defining surfaces of the receiving opening 3. In this manner a non-positive frictional fit is established between the first and second elements 1, 2.
  • This construction adds to the mechanical strength of the connection assembly, particularly against bending moments which may arise under load in the plane of the two elements.
  • the second element 2 is provided with two projecting ridges 8 on its outer surface.
  • the receiving opening 3 is adapted to receive the second element 2 with the ridges and with or without play.
  • the two elements 1, 2 are connected to one another at the positions P 1 and P 2 .
  • the first element 1 could also be provided with ridges on its interior surface. Such ridges could be disposed to engage with the projecting ridges (8) on the outer surface of the second element 2.
  • the first elongate element 1 is tubular and comprises two inner ridges 5 arranged to contact the outer surface of the second element 2 at two positions P 1 , P 2 .
  • the tubular member 1 of larger diameter is preprocessed to form the two ridges 5 projecting into the interior of the tube.
  • the ridges 5 can be formed when making the tube by externally applying pressure to form a longitudinal crease or indentation 6 as shown in Fig. 4.
  • the indentation can be formed only in the regions of the intersection of the two elements.
  • An internal ridge could also be formed in the interior during the production process of the tube, whereby the outer diameter of the tube would remain circular.
  • the second tubular elements 2 in this embodiment define tangential planes 10, 20 which lie parallel to the plane defined by the centre axes x, y of the first and second tubes 1, 2 respectively.
  • the inner ridges 5 of the first tube 1 are dimensioned so as to contact the outer surface of the second tube 2 at the two tangential planes 10, 20 when assembled.
  • the connection of the two tubes is then performed at the two positions P 1 and P 2 where the crest of the inner ridges 5 contact the outer surface of the second tube 2.
  • the connection at these positions will normally be performed by resistance welding for metallic tubes or alternatively by fusion bonding or adhesion for plastic tubes.
  • the maximum width of the connection assembly corresponds to the distance W which is the dimension of the first tube 1 in the z direction.
  • the overall width W is only slightly larger than the distance between the tangential planes 10, 20 of the smaller diameter of the second tube 2. This allows considerable savings in space for applications to grid constructions where space on either side of the grid is often of importance.
  • a further embodiment of the present invention is show in Fig. 6 wherein the first element is provided as a tubular member having three ridges 5 formed therein.
  • the second element 2 penetrates the receiving opening or hole 3 such that it contacts only one of the inner ridges 5.
  • the contact position is indicated generally at reference numeral 4.
  • the two elements 1, 2 are connected to one another at only one position.
  • the second elements 2 can be oriented at various angles about the axis x of the first tube 1.
  • the centre axis y of the second tube 2 does not intersect the centre axis x of the first tube 1.
  • the respective axes x, y of the tubes need not intersect one another. This will depend on the particular application and on the relative diameters of the first and second tubular members 1, 2 as well as their desired orientation with respect to one another.
  • angular position of the ribs 5 could be positioned such that the outer surface of the tube 2 contacts two ridges on one of its sides and one ridge on the other side.
  • the skilled person will recognize from Fig. 6 that many combinations of the ridge orientation and the second tube penetration position are possible.
  • Fig. 7 shows another embodiment in which four ridges are provided to project into the interior of the first tubular element 2.
  • the receiving opening as well as the diameter of the second tubular element 2 is dimensioned such that the four positions a, b, c, d exist at which the elements can be connected to one another.
  • the embodiments of Figs. 6 and 7 can comprise elements which are tubular in structure and which have circular, oval, square, triangular or rectangular cross-sections.
  • the second elements could be solid rods having the various cross-sections.
  • the first elongate element is provided as an open profile, particularly a U-shaped profile.
  • any shape of the open profile is possible as long as walls 1a, 1b, 1c are present through which the receiving opening 3 can be formed.
  • the side walls 1a, 1b of the U-shaped profile are substantially parallel to one another. This would make it somewhat easier to form the receiving holes 3a, 3b, for example by means of stamping.
  • the second element 2 can be penetrated through the two parts 3a, 3b of the legs 1a, 1b of the U-shaped profile.
  • the base 1c of the U-shaped profile can be provided with a single opening (not shown) through which the second tubular member 2 passes.
  • the element 2 is connected to two inner ridges 5, one on either of the legs 1a, 1b.
  • the connection position is shown by the reference numeral 4 on the exterior of leg 1a.
  • FIG. 9 Another embodiment of the invention is shown in Fig. 9, where the penetrating element 2a is formed as a plate.
  • the plate 2a passes through a slot 3a formed in the first tubular member 1.
  • a ridge 5a formed on the plate 2a contacts the crest of an inner ridge 5 formed in the element 1.
  • one plate element could be inserted to contact the upper ridge 5 of the tubular element 1.
  • another plate element 2a could be inserted into a slot indicated as 3b in Fig. 9 with the ridge 5a being oriented downwardly.
  • the ridge 5a of the plate will contact the lower ridge 5 within the tube 1.
  • the plate 2a could be provided with two or more ridges allowing two or more connection positions with the inner ridge 5 of the tube 1.
  • connection at the one or more positions by means of a form fit.
  • at least one inner ridge of the first tubular member engages with the outer surface of the second element 2.
  • the first tubular element could be indented inwardly to force a matching indentation of the outer surface of the inner second element.
  • the matching deformation of the first and second elements would also provide a form fit.
  • an indentation could be formed in the outer tube 1 at the location 4.
  • the indentation 4 would be deep enough to form a matching deformation in the second tube 2, whereby an interconnecting fit would be established.
  • connection assembly of the present invention is particularly suitable for the formation of a grid.
  • Fig. 10 illustrates an embodiment of such a grid comprising first and second tubes 1, 2 arranged parallel to one another in spaced relationship. At their intersections, the first and second tubes are provided with a connection assembly as described above.
  • the grid construction formed in this manner provides particularly high mechanical strength while being light in weight.
  • only the first tube 1 need be further processed, for example by the formation of the receiving hole or the provision of a ridge.
  • the other cross tube 2 can be used as it is supplied from the manufacturer. The formation of the grid is therefore easy and inexpensive and readily adaptable to series production.

Claims (17)

  1. Verbindungsbaugruppe mit:
    einem ersten und zweiten langgestreckten Bauteil (1, 2), die an einer Kreuzungsstelle miteinander verbunden sind,
    wobei das erste Bauteil (1) eine darin ausgebildete Aufnahmeöffnung (3) aufweist, durch die das zweite Bauteil (2) hindurchgeführt ist,
    wobei das erste Bauteil (1) an einer Position oder mehreren Positionen (P1, P2) im Bereich ihrer Kreuzungsstelle mit dem zweiten Bauteil (2) verbunden ist,
    dadurch gekennzeichnet, dass
    das erste langgestreckte Bauteil (1) rohrförmig ist und eine oder mehrere Innenrippe/n (5) umfasst und die Rippen (5) so angeordnet sind, dass sie nahe bei der Außenoberfläche des zweiten Bauteils (2) liegen oder diese berühren, um die eine Position oder die mehreren Positionen (P1, P2) auszubilden, an der die Bauteile (1, 2) verbunden sind.
  2. Baugruppe nach Anspruch 1, bei der eine Innenabmessung der Aufnahmeöffnung (3) des ersten Bauteils (1) im Hinblick auf eine Außenabmessung (d2) des zweiten Bauteils (2) so dimensioniert ist, dass sie einen Reibschluss der beiden Bauteile (1, 2) bereitstellt.
  3. Baugruppe nach Anspruch 1 oder 2, bei der zwei Verbindungspositionen (P1, P2) ausgebildet sind, an denen die Außenoberfläche des zweiten Bauteils (2) der Innenoberfläche des ersten Bauteils (1) gegenüberliegt.
  4. Baugruppe nach Anspruch 3, bei der das erste und zweite Bauteil (1, 2) rohrförmig ist, wobei das erste und zweite Bauteil im Querschnitt im allgemeinen kreisförmig, oval, quadratisch, dreieckig oder rechteckig ist.
  5. Baugruppe nach Anspruch 3 oder 4, bei der die Außenoberfläche des zweiten Bauteils (2) mit zwei Rippen (8) versehen ist, die nahe bei der Innenoberfläche des ersten Bauteils (1) liegen oder diese berühren, um die beiden Verbindungspositionen (P1, P2) auszubilden.
  6. Baugruppe nach Anspruch 1, bei der das erste und zweite Bauteil (1, 2) im Querschnitt rohr- und kreisförmig ist, wobei das erste Bauteil (1) zwei Innenrippen (5) aufweist, die im Hinblick auf seine Mittenachse (x) entgegengesetzt ausgebildet sind, wobei die beiden Rippen (5) die Außenoberfläche des zweiten rohrförmigen Bauteils (2) berühren, um zwei Positionen (P1, P2) auszubilden, an denen die Bauteile (1, 2) verbunden sind.
  7. Baugruppe nach Anspruch 1, bei der das erste Bauteil (1) drei Innenrippen (5) umfasst, wobei die Aufnahmeöffnung (3) so vorgesehen ist, dass die Außenoberfläche des zweiten Bauteils (2) eine der Innenrippen (5) berührt, an welcher Position die Bauteile (1, 2) verbunden sind.
  8. Baugruppe nach Anspruch 1, bei der das erste Bauteil (1) vier Innenrippen (a, b, c, d) umfasst, wobei die vier Innenrippen so angeordnet sind, dass sie die Außenoberfläche des zweiten Bauteils an vier Positionen (a, b, c, d) berührt, an denen die Bauteile (1, 2) verbunden sind.
  9. Baugruppe nach einem der Ansprüche 1 bis 8, bei der das erste und zweite langgestreckte Element (1, 2) rohrförmig ist, wobei die Bauteile (1, 2) im Querschnitt im wesentlichen kreisförmig, oval, quadratisch, dreieckig oder rechteckig sind.
  10. Baugruppe nach Anspruch 1 oder 2, bei der das erste langgestreckte Element (1) als offenes Profil, wie ein U- oder C-förmiges Profil ausgebildet ist, wobei das Profil (1) eine oder mehrere Innenrippe/n (5) aufweist, die so angeordnet ist/sind, dass sie die Außenoberfläche des zweiten Bauteils berührt/berühren, um die eine Position oder die mehreren Positionen (P3) auszubilden, an denen die Bauteile (1, 2) verbunden sind.
  11. Baugruppe nach Anspruch 10, bei der das zweite langgestreckte Bauteil (2) rohrförmig ist, wobei sein Querschnitt im allgemeinen kreisförmig, oval, quadratisch, dreieckig oder rechteckig ist.
  12. Baugruppe nach einem der Ansprüche 1, 2 oder 10, bei der das zweite langgestreckte Bauteil (2) eine Platte (2a) ist, die durch einen Schlitz (3a) als Aufnahmeöffnung im ersten langgestreckten Bauteil (1) hindurchgeht.
  13. Baugruppe nach Anspruch 12, bei der das erste langgestreckte Bauteil (1) ein Rohr (1) mit mindestens einer Innenrippe (5) umfasst, wobei die Platte (21) eine weitere Rippe (5a) aufweist, die dazu ausgelegt ist, die Innenrippe (5) des Rohrs (1) zu berühren, wenn die Platte in die Aufnahmeöffnung (3) eingeschoben ist, um die Position zur Verbindung der beiden Bauteile (1, 2) bereitzustellen.
  14. Baugruppe nach einem der Ansprüche 1 bis 13, bei der das erste und zweite langgestreckte Bauteil (1, 2) aus Metall besteht, und die Bauteile (1, 2) an der einen Position oder den mehreren Positionen (P1, P2) durch Schweißen verbunden sind.
  15. Baugruppe nach einem der Ansprüche 1 bis 13, bei der das erste und zweite langgestreckte Bauteil (1, 2) aus Kunststoff besteht, und die Elemente (1, 2) an der einen Position oder den mehreren Positionen (P1, P2) durch Ultraschallschweißen, Induktionsschweißen oder Schmelzverbinden verbunden sind.
  16. Baugruppe nach einem der Ansprüche 1 bis 4, bei der das erste und zweite langgestreckte Bauteil (1, 2) an der einen Position oder den mehreren Positionen (P1, P2, P3) durch Verformung eines Bauteils oder beider Bauteile (1, 2) an einer Position oder mehreren der Positionen (P1, P2, P3) verbunden sind, um einen Formschluss zwischen den beiden Bauteilen (1, 2) herzustellen.
  17. Gitterkonstruktion mit:
    mehreren ersten langgestreckten Bauteilen (1), die zueinander parallel und in beabstandetem Verhältnis angeordnet sind,
    mehreren zweiten langgestreckten Bauteilen (2), die zueinander parallel und in beabstandetem Verhältnis angeordnet sind,
    wobei die ersten und zweiten Bauteile (1, 2) einander kreuzen,
    dadurch gekennzeichnet, dass
    die ersten und zweiten Bauteile (1, 2) in einer wie in einem der Ansprüche 1 bis 16 definierten Verbindungsbaugruppe verbunden sind.
EP97119263A 1997-11-04 1997-11-04 Verbindungszusammenbau Expired - Lifetime EP0916777B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DK97119263T DK0916777T3 (da) 1997-11-04 1997-11-04 Forbindelsessamling.
AT97119263T ATE232569T1 (de) 1997-11-04 1997-11-04 Verbindungszusammenbau
ES97119263T ES2192643T3 (es) 1997-11-04 1997-11-04 Conjunto de conexion.
EP97119263A EP0916777B1 (de) 1997-11-04 1997-11-04 Verbindungszusammenbau
DE69719036T DE69719036T2 (de) 1997-11-04 1997-11-04 Verbindungszusammenbau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97119263A EP0916777B1 (de) 1997-11-04 1997-11-04 Verbindungszusammenbau

Publications (2)

Publication Number Publication Date
EP0916777A1 EP0916777A1 (de) 1999-05-19
EP0916777B1 true EP0916777B1 (de) 2003-02-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119263A Expired - Lifetime EP0916777B1 (de) 1997-11-04 1997-11-04 Verbindungszusammenbau

Country Status (5)

Country Link
EP (1) EP0916777B1 (de)
AT (1) ATE232569T1 (de)
DE (1) DE69719036T2 (de)
DK (1) DK0916777T3 (de)
ES (1) ES2192643T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1020438C2 (nl) * 2002-04-19 2003-10-21 Leer Koninklijke Emballage IBC voor brandbare produkten.
AU759876B1 (en) * 2002-06-14 2003-05-01 Ss Mfg Pty Ltd Latticework panel
DE60320929D1 (de) 2003-03-13 2008-06-26 Leer Koninklijke Emballage Eine Gitterstruktur
DE202008006308U1 (de) 2008-05-07 2008-07-17 Horsch Maschinen Gmbh Rahmengestell für landwirtschaftliches Bodenbearbeitungsgerät

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2106948A (en) * 1981-09-22 1983-04-20 Brian Harmer Metal floor-grating
GB2133430A (en) * 1982-12-24 1984-07-25 John Raymond Williams Metallic structure
DK168243B1 (da) * 1989-08-14 1994-02-28 Fiberline As Profilsamling
GB9515460D0 (en) * 1995-07-27 1995-09-27 Mita Uk Ltd Structural support system and method for its manufacture pultruded grp grating

Also Published As

Publication number Publication date
DK0916777T3 (da) 2003-06-10
EP0916777A1 (de) 1999-05-19
DE69719036D1 (de) 2003-03-20
ES2192643T3 (es) 2003-10-16
ATE232569T1 (de) 2003-02-15
DE69719036T2 (de) 2003-11-27

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