WO2002030709A1 - Dispositif pour equipement porte-charge - Google Patents

Dispositif pour equipement porte-charge Download PDF

Info

Publication number
WO2002030709A1
WO2002030709A1 PCT/SE2001/001711 SE0101711W WO0230709A1 WO 2002030709 A1 WO2002030709 A1 WO 2002030709A1 SE 0101711 W SE0101711 W SE 0101711W WO 0230709 A1 WO0230709 A1 WO 0230709A1
Authority
WO
WIPO (PCT)
Prior art keywords
load carrier
carrier bar
arrangement
support foot
deformation
Prior art date
Application number
PCT/SE2001/001711
Other languages
English (en)
Inventor
Markus Andersson
Original Assignee
Mont Blanc Industri Ab
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 Mont Blanc Industri Ab filed Critical Mont Blanc Industri Ab
Priority to AU2001280366A priority Critical patent/AU2001280366A1/en
Publication of WO2002030709A1 publication Critical patent/WO2002030709A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R9/00—Supplementary fittings on vehicle exterior for carrying loads, e.g. luggage, sports gear or the like
    • B60R9/04—Carriers associated with vehicle roof
    • B60R9/052—Carriers comprising elongate members extending only transversely of vehicle

Definitions

  • This invention relates to an arrangement for attaching a load carrier bar to a support foot which in its turn is intended to be attached to a vehicle roof.
  • the object of the invention is thus to provide a force-absorbing support foot/load carrier construction with the purpose of relieving the attachment between the support foot and the vehicle roof in the event of a col- lision or some other very fast change of the speed of the vehicle .
  • an attaching arrangement of the type stated by way of introduction, which is characterised in that said load carrier bar and said support foot are fixedly connected to one another, which fixed connection is breakable in a predetermined load condition, such as in a collision, a relative motion between the attachment of the support foot to a vehicle roof and the load carrier bar being allowed, and said attaching arrangement also comprising means for decelerating said relative motion.
  • This construction allows some motion between the attachment of the support foot to the roof, for example displacement, after a certain amount of load has been applied to the attaching arrangement. For example, this may happen in a collision when a load attached to the roof rack due to inertia strives to continue in a certain direction.
  • the whole iner- tial force is transferred to the attachments of the sup- port feet to a vehicle roof, which easily results in sheet-damage.
  • a relative motion occurs between the different parts included in the arrangement when subjected to high loads, which high loads causes the loads on the one hand to be distributed among many different components and, on the other, distributed over time, resulting in the attachment points of the support feet being less loaded.
  • the attaching arrangement comprises decelerating means which prevent the load carrier bars from completely detaching themselves from the support feet and can be used also for damping the motion.
  • the arrangement further comprises a deformation element which is intended to damp said relative motion between the attachment of the support foot and the load carrier bar.
  • This deformation element contributes to damping the motion to an even larger extent and thus preventing considerable force gradients which can have a damaging effect on, for example, the vehicle roof.
  • said deformation ele- ment comprises a deformation metal sheet which is fixedly connected to a connecting element connecting the support foot to the load carrier bar. This construction involves that also the deformation element is displaced when the connecting element moves. By suitably dimensioning the metal sheet and the inside edges of the load carrier bar, a damping effect is obtained when the metal sheet is forced to bend so that it follows the inside of the load carrier bar.
  • said deformation element is formed as part of the load carrier bar. This results in a simple construction, in which the deformation element for example can be mte- grally formed with the load carrier bar by means of extrusion .
  • the attaching arrangement comprises a blocking means which is arranged in one of the support foot and the load carrier bar, and which in a position of use is adapted to hold a connecting element connecting the support foot to the load carrier bar by means of said fixed connection between the support foot and the load carrier bar.
  • said blocking means is formed as a portion which protrudes from said connecting element and which in the position of the support foot and the load carrier bar when fixedly connected to one another abuts against an internal wall portion of the load carrier bar.
  • said blocking means is made of a brittle material, such as die-cast aluminium. This leads to the blocking means bursting when subjected to high loads and thus allowing relative motion between the components.
  • said blocking means is made of a ductile material, such as extruded aluminium. This means that the blocking means yields when subjected to high loads and thus allows relative motion between the components. This construction allows a somewhat smoother transition between the fixed position and the motion condition than does the brittle construction described above and can thus be said to constitute part of the above- described decelerating means.
  • the load carrier On its underside, the load carrier further exhibits a groove which extends transversely to the longitudinal direction of the load carrier bar, whereby an attaching element extends through the groove and is fixedly con- nected to a connecting element connecting the support foot to the load carrier bar for controlling said connecting element relative to the load carrier bar in said relative motion between the attachment of the support foot to the vehicle roof and the load carrier bar.
  • said decelerating means comprises tapering deformation portions formed in said groove, which deformation portions are such that said attaching element is prevented from passing through the groove without an initial deformation of either of a deformation portion or the attaching element itself.
  • said decelerating means suitably comprises abutment portions for decelerating abutment between said load carrier and said support foot in connection with said relative motion.
  • abutment portions allow a direct and safe decelerating effect, which prevents the connection between the load carrier bar and the support foot from being broken.
  • said abutment portions can occur between the carrier load bar and the above-described connecting element which protrudes from the support foot and is adapted to be inserted into a cavity in the load carrier bar itself.
  • Fig. 1 shows an arrangement according to the inven- tion in its position of use on the one hand as a perspective view and, on the other, as a cross-sectional view along the line I-I in the corresponding perspective view.
  • Fig. 2 shows an arrangement according to the invention after being subjected to loads on the one hand as a perspective view and, on the other, as a cross-sectional view along the line II-II in the corresponding perspective view.
  • Fig. 3 is a cross-sectional view, corresponding to that in Fig. 1, of an alternative embodiment of the in- vention.
  • Fig. 4 is a cross-sectional view, corresponding to that in Fig. 2, of the embodiment shown in Fig. 3.
  • Fig. 5 is a cross-sectional view, corresponding to that in Fig. 1, of yet another alternative embodiment of the invention.
  • Fig. 6 is a cross-sectional view, corresponding to that in Fig. 2, of the embodiment shown in Fig. 5.
  • Fig. 7 is a perspective view of a support foot in accordance with the invention having integrated connect- ing elements and blocking means.
  • Fig. 8 is a view of a load carrier bar in accordance with the invention, seen from below, exhibiting a groove which extends transversely to the longitudinal direction of the load carrier bar and, moreover, exhibits tapering deformation portions.
  • FIG. 1 shows an arrangement according to the in- vention in its position of use and in Fig. 2 it is shown in its position after a displacement motion has occurred, for instance, after a collision.
  • the arrangement com- prises a support foot 1 which is intended to be mounted directly on a vehicle roof or a rail .
  • the arrangement further comprises a load carrier bar 8 which is intended to extend between two support feet 1 arranged on opposite sides of a vehicle roof.
  • the load carrier bar 8 and the support foot 1 are connected to one another by means of a connecting element 2 which extends therebetween.
  • said connecting element 2 is shaped as a portion protruding from the support foot 1, see Fig. 7.
  • the support foot 1 and the connecting element 2 are thus integrally formed.
  • the load carrier bar in this embodiment is made of an extruded aluminium pipe and exhibits a central cavity, in which the connecting element 2 is adapted to be fitted.
  • the load carrier bar 8 has a slightly rounded profile seen in section.
  • the load carrier bar 8 exhibits a longitudinal groove 9 which is formed in its upper side and is intended for attachment of various loads, roof-mounted bicycle holders etc. The formation of this groove results in internal groove walls 10a, 10b inside said cavity in the load carrier bar 8.
  • the connecting element 2 further exhibits blocking means, in this case first and second guide walls 3a and 3b, respectively, which are intended to abut against the respective internal groove walls in the position of use of the arrangement.
  • This fitting of the internal groove walls 10a, 10b between the guide walls 3a, 3b of the connecting element allows very stable attachment between the load carrier bar 8 and the support foot 1 in the position of use of the arrangement.
  • the arrangement according to this embodiment comprises a deformation element 6 which is arranged between the lower inside of the load carrier bar 8 and said connecting element 2 inside the cavity of the load carrier bar 8.
  • the deformation element is in this embodiment formed as metal sheet which is arranged at the bottom of said cavity.
  • This metal sheet is suitably made of a ductile material and extends a distance up along the internal side edges of the load carrier bar 8.
  • the load carrier bar 8 exhibits an elongated groove 11 which extends on its underside and which in this embodiment extends essentially transversely to the longitudinal direction of the load carrier bar 8.
  • the arrangement exhibits an attaching element 5 in the form of a rivet which fixedly connects the connecting element 2 to the deformation element 6 via openings in the respective elements. Said rivet 5 runs further through said elongated groove 11 and the head of the rivet 5 is intended to abut against the side edges of the groove 11 on the underside of the load carrier bar.
  • the connecting element 2 is thus fixedly attached between said groove 9 which is formed in the load carrier bar 8 and its internal groove walls 10a, 10b which abut against the guide walls 3a, 3b and the internal bottom side of the load carrier bar 8, in this case via said deformation element 6.
  • This attachment is stable to such a degree that a user perceives it as fixed.
  • the load carrier bar 8 will apply force to the attachment of the load carrier bar to the support foot due to the inertia of the load as the speed of a vehicle changes, on which the arrangement is placed.
  • the support foot and the associated connecting element 2 and guide walls 3a, 3b is made of a brittle material, such as die-cast aluminium, whereby the loaded guide wall bursts.
  • the force at which the loaded guide wall bursts can be controlled by dimensioning the height, width, and depth of the guide wall and by different choices of mate- rial.
  • a gap is suitably formed between the guide wall and the support foot body itself, which prevents the wall from being exposed to complicated torque moments and makes the dimensioning of the walls easier.
  • Fig. 7 also shows one short and one long guide wall and these are thus adapted to burst when subjected to different loads.
  • the load carrier bar 8 is thus displaceable relative to the connecting element 2 by means of the rivet which is fixedly connected to the connecting element 2 and the deformation element 6 and runs freely in the elongated displacement groove.
  • This displacement motion is shown in Fig. 2. Due to the fact that the connecting element is fixedly connected to the deformation element by means of the rivet, also the deformation element will be displaced. However, a displacement of the deformation element causes it to be bent since it is forced to follow the inside of the load carrier bar. This deformation results in damping of the displacement motion in order to obtain a soft motion of the load carrier bar 8 relative to the support foot 1 when the blocking means (the guide wall) has burst.
  • Figs 3 and 4 show an alternative embodiment of the invention. It is more or less designed in the same manner as the arrangement described above, but instead of the deformation element being formed as a separate component, the deformation element in this construction is integrally formed with the load carrier bar 8.
  • the deformation element is here composed by two concave surfaces which are formed in connection with extrusion of the load carrier bar 8.
  • the connecting element 2 exhibits abutment elements 12 which are adapted to abut against said deformation element ⁇ in the position of use.
  • This construction also involves that the connecting element abuts directly against the internal bottom side of the load carrier bar 8 instead of via the deformation element 6 as in the first -mentioned embodiment.
  • the connecting element 2 is thus fixedly attached between said groove 9 formed in the load carrier bar and its internal groove walls 10a, 10b which abut against the guide walls 3a, 3b, and the internal bottom side of the load carrier bar 8 and the deformation element 6.
  • This attachment is so stable that a user perceives it as fixed.
  • the deformation in this embodiment occurs by either of said abutment elements 12 abutting and pressing against the deformation element 6.
  • This pressure implies that the deformation element 6 is slowly straightened out and possibly also changes the direction of bending, see Fig. 4.
  • Figs 5 and 6 show yet another alternative embodiment of the invention. This is more or less designed as the first -described arrangement, but in this embodiment the support foot and the associated connecting element 2 and guide walls 3a, 3b is made of a ductile material, such as extruded aluminium, the loaded guide wall being bent, see Fig. 6.
  • the force at which the loaded guide wall is bent can be controlled by dimensioning of the height, width, and depth of the guide wall and by different choices of material.
  • the guide walls be made of a ductile material, a smoother transition between the position of use and the load condition is obtained, which further prevents considerable force gradients in the arrangement .
  • the three different embodiments shown in Figs 1-6 are all bi-directional, i.e.
  • Fig. 7 shows a load carrier bar seen from below, exhibiting the groove 11 which extends transversely to the longitudinal direction of the load carrier bar, and through which said rivet 5 is intended to run.
  • the groove 11 shown in Fig. 8 also exhibits tapering deformation portions 13, also called deformation bumps. They project into the groove and limit the width of the groove locally. These deformation portions serve to prevent said rivet 5 from passing them without an initial deformation thereof, which takes place by the rivet applying a pressure after the guide wall has yielded.
  • the deformation portions 13 can thus be used as replacement for, or as a complement to, the deformation element 6 described above.
  • the deformation element can be of bellows -type or the like.
  • the denomination rivet 5 which is used to describe the element that is attached to the connect- ing element and optionally also to the deformation element and which runs through the groove 11 is considered to comprise different types of fastening elements, such as bolts, screws etc.
  • the above-mentioned support foot and load carrier are described as made of aluminium, but they can be made of other materials, without deviating from the inventive idea.
  • said relative motion might not be a displacement motion but, for example, a rotary motion or a folding motion.
  • this dis- placement results in a small amount of energy being passed down to the attachment of the support foot to the vehicle roof or at least the energy being passed down during a long period of time, which decreases the strain on the attachment.
  • a load carrier construction comprising four support feet and two load carrier bars running in pairs therebetween, all the arrangements according to the invention can be dimensioned in different ways in order to optimally absorb forces in the most frequent types of collisions.
  • deformation portions can be designed in different ways. They may, for example, be adapted to be deformed when pressure is exerted by the attaching element, be adapted to burst when pressure is exerted by the attaching element or be adapted to deform the attaching element itself.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

L'invention se rapporte à un dispositif permettant de fixer une barre d'équipement porte-charge (8) sur une pâte de support (1) conçue à son tour pour être fixée sur un toit de véhicule. Ce dispositif de fixation se caractérise en ce que la barre de l'équipement porte-charge (8) et la patte de support (1) sont assemblées l'une à l'autre de manière fixe, de sorte que la connexion fixe puisse être rompue dans une situation de charge préétablie, telle que lors d'une collision, et qu'un déplacement relatif entre l'organe de fixation de la patte de support (1) au toit de véhicule et la barre de l'équipement porte-charge (8) puisse se produire. Le dispositif de fixation comporte également un organe permettant de ralentir ledit déplacement relatif.
PCT/SE2001/001711 2000-10-13 2001-08-07 Dispositif pour equipement porte-charge WO2002030709A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001280366A AU2001280366A1 (en) 2000-10-13 2001-08-07 Arrangement for a load carrier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0003720A SE0003720L (sv) 2000-10-13 2000-10-13 Anordning vid lastbärare
SE0003720-0 2000-10-13

Publications (1)

Publication Number Publication Date
WO2002030709A1 true WO2002030709A1 (fr) 2002-04-18

Family

ID=20281423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/001711 WO2002030709A1 (fr) 2000-10-13 2001-08-07 Dispositif pour equipement porte-charge

Country Status (3)

Country Link
AU (1) AU2001280366A1 (fr)
SE (1) SE0003720L (fr)
WO (1) WO2002030709A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2985963A1 (fr) * 2012-01-23 2013-07-26 Peugeot Citroen Automobiles Sa Dispositif fusible pour tenue des barres de toit en city-crash
JP2015217830A (ja) * 2014-05-19 2015-12-07 アイシン精機株式会社 ルーフレール
JP2015217831A (ja) * 2014-05-19 2015-12-07 アイシン精機株式会社 ルーフレール
USD947097S1 (en) * 2019-10-02 2022-03-29 Rhino Rack Australia Pty Limited Underbar for roof rack with aperture/window
US20220169169A1 (en) * 2019-02-28 2022-06-02 Mim Construction Ab Security arrangement for a load carrying, load pulling, load pushing or load stopping assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326789A1 (de) * 1982-08-06 1984-02-09 Ulrich 6450 Hanau Möbius Befestigung fuer eine traegeranordnung
EP0476288A1 (fr) * 1990-09-07 1992-03-25 Happich Fahrzeug-Dachsysteme GmbH Galerie de toit pour véhicules automobiles
DE4242207A1 (de) * 1992-12-15 1994-06-16 Happich Gmbh Gebr Querträger für Dachlasten an einem mit einer Dachreling ausgestatteten Kraftwagen
DE4409956A1 (de) * 1994-03-23 1995-09-28 Gerhard Kell Mehrzweck Schutz- und Trägervorrichtung, vorzugsweise für motorisch getriebene Fahrzeuge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326789A1 (de) * 1982-08-06 1984-02-09 Ulrich 6450 Hanau Möbius Befestigung fuer eine traegeranordnung
EP0476288A1 (fr) * 1990-09-07 1992-03-25 Happich Fahrzeug-Dachsysteme GmbH Galerie de toit pour véhicules automobiles
DE4242207A1 (de) * 1992-12-15 1994-06-16 Happich Gmbh Gebr Querträger für Dachlasten an einem mit einer Dachreling ausgestatteten Kraftwagen
DE4409956A1 (de) * 1994-03-23 1995-09-28 Gerhard Kell Mehrzweck Schutz- und Trägervorrichtung, vorzugsweise für motorisch getriebene Fahrzeuge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2985963A1 (fr) * 2012-01-23 2013-07-26 Peugeot Citroen Automobiles Sa Dispositif fusible pour tenue des barres de toit en city-crash
JP2015217830A (ja) * 2014-05-19 2015-12-07 アイシン精機株式会社 ルーフレール
JP2015217831A (ja) * 2014-05-19 2015-12-07 アイシン精機株式会社 ルーフレール
US20220169169A1 (en) * 2019-02-28 2022-06-02 Mim Construction Ab Security arrangement for a load carrying, load pulling, load pushing or load stopping assembly
USD947097S1 (en) * 2019-10-02 2022-03-29 Rhino Rack Australia Pty Limited Underbar for roof rack with aperture/window

Also Published As

Publication number Publication date
SE0003720D0 (sv) 2000-10-13
SE0003720L (sv) 2002-04-14
AU2001280366A1 (en) 2002-04-22

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