US20100244500A1 - Vehicle roof with high inherent stiffness - Google Patents

Vehicle roof with high inherent stiffness Download PDF

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Publication number
US20100244500A1
US20100244500A1 US12/738,756 US73875608A US2010244500A1 US 20100244500 A1 US20100244500 A1 US 20100244500A1 US 73875608 A US73875608 A US 73875608A US 2010244500 A1 US2010244500 A1 US 2010244500A1
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US
United States
Prior art keywords
slats
vehicle roof
opening
roof according
folding arrangement
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.)
Abandoned
Application number
US12/738,756
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English (en)
Inventor
Florian Dorin
Stephan Lange
Roland Brambrink
Ulrich Grosser
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.)
Covestro Deutschland AG
Original Assignee
Bayer MaterialScience AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer MaterialScience AG filed Critical Bayer MaterialScience AG
Publication of US20100244500A1 publication Critical patent/US20100244500A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
    • B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
    • B60J7/047—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels movable to overlapping or nested relationship

Definitions

  • the present invention relates to a vehicle roof having an opening, a folding arrangement [ 3 ] and a device for receiving the latter, wherein said folding arrangement [ 3 ] has at least two slats [ 1 ] made of plastic which are arranged parallel to one another, and the folding arrangement [ 3 ] can be brought, while being folded, into a device [ 4 ] which is provided for it, in order to at least partially unblock the opening, and wherein said folding arrangement [ 3 ] closes the opening completely when in the closing position and wherein the slats [ 1 ] are curved as a result of bracing when they are in the position in which they close the opening, and are oriented in a substantially flat and plane-parallel manner when they are at least partially unblocking said opening.
  • sliding roofs for vehicles, for example rigid, one-piece, transparent and non-transparent sliding roofs. Slatted roofs made of transparent materials are also manufactured. These are described, inter alia, in DE 44 15 649 C1 and EP-A-591 644.
  • EP-A-1 125 778 describes a vehicle roof which is capable of opening and has at least two roof systems which are arranged one behind the other and are capable of opening separately. A feature of these roofs consists in the fact that the combination of individual slats is broken up when it is opened. An additional, separable sealing face between the individual slats is therefore necessary.
  • the intention is therefore to develop a vehicle roof which is made of plastic and has high inherent stiffness without additional stiffening elements.
  • a vehicle roof having an opening, a folding arrangement [ 3 ] and a device for receiving the latter, wherein said folding arrangement [ 3 ] has at least two slats [ 1 ] made of plastic which are arranged parallel to one another, and the folding arrangement [ 3 ] can be brought, while being folded, into a device [ 4 ] which is provided for it, in order to at least partially unblock the opening, and wherein said folding arrangement [ 3 ] closes the opening completely when in the closing position and wherein the slats [ 1 ] are curved as a result of bracing when they are in the position in which they close the opening, and are oriented in a substantially flat and plane-parallel manner when they are at least partially unblocking said opening.
  • the vehicle roof according to the invention has high inherent stiffness without additional stiffening elements. At the same time, the smallest possible installation space is ensured when said roof is in the open state.
  • the term “slats” [ 1 ] essentially means laminar and elongated plates made of plastic such as polycarbonate (PC) or polymethyl methacrylate (PMMA, acrylic glass or Plexiglas).
  • the slats may also be connected in a material-bonded and/or form-locking manner over the predominant part, i.e. as a rule over 75% and, ideally, 100% of the longitudinal sides of the slats, by elastomer such as, for example, polyurethane, thermoplastic polyurethane or silicone.
  • bracing means that the slats are arched compared to their original state. This arching can be brought about by the pressing of the slats against one another, for example at their end faces.
  • a component is curved in a double (spherical) manner, the stiffness is increased more than in the case of a single curvature.
  • the stiffness of a component is likewise increased if it is subjected to bracing.
  • the stiffness of a roof can thus be increased by means of a double curvature and the application of pretensioning. It is precisely this fact which is ideal in the case of slatted roofs because, in the closed state, they are comparable with conventional panoramic roofs and have to guarantee a high degree of stiffness. This can be achieved by way of three-dimensional curvatures. Curvature in the longitudinal axis of the vehicle is predetermined by way of the vehicle's geometry, and curvature transversely to the direction of travel can be achieved by bracing or compressing the slats.
  • the bracing is eased in a continuous manner during the opening process, and is preferably eased in a continuous manner.
  • the curvature is thereby reduced in the course of the opening operation, so that the slats are plane-parallel in relation to one another only in the largely or completely open state: In the open state, the slats should take up the smallest possible installation space, and the curvature may constitute an obstacle to this—particularly in the case of slats which are connected in a material-bonded and/or form-locking manner—since the slats which are folded up convexly/concavely would be mutually repelled by one another.
  • the slats [ 1 ] are flat and plane-parallel when in the state in which they are relieved of tension—the original state ( FIGS. 01-03 ).
  • curved means rounding that deviates from the straight in one or two dimensions, i.e. normally the longitudinal and transverse directions of the vehicle. Preference is given to a curvature with a radius of 1.5 to 4 m and, in a particularly preferred manner, 2 to 3 m.
  • the expression “substantially flat” means that the slats are absolutely flat in the geometrical sense, or preferably are not absolutely flat but have a slight “initial curvature” in order to guarantee that they subsequently curve in the right direction. Said slats are preferably absolutely flat or have a curvature with a radius between infinite and 4 m and, in a particularly preferred manner, between infinite and 8 m.
  • the expression “oriented in a substantially plane-parallel manner” means that the slats are arranged so as to be absolutely parallel to one another in the geometrical sense, or have a deviation from parallelism of less than 10%, preferably less than 5% and, in a particularly preferred manner, less than 2%.
  • closing position means that the vehicle roof is closed in a substantially rain-tight manner by the moving-apart of the slats [ 1 ].
  • the pretensioning can be achieved, according to the invention, through the fact that the guide rails [ 2 ] converge in the longitudinal axis of the vehicle and diverge, in the region of the device for receiving the folding arrangement [ 3 ], in such a way that the slats are, to a very large extent, transferred into the original state again (see FIGS. 01-03 ).
  • a path of this kind may preferably be biconcave in shape [ 4 ].
  • the slats are compressed and a curvature develops.
  • the guide rails extend in a curved manner along the geometry of the vehicle, a double curvature is achieved by way of the curvatures of the vehicle's geometry and of the slats.
  • the slats are subjected to bracing when in the closed state, so that the roof has a high degree of stiffness. This results in curvature such as has been represented as [ 5 ] in FIG. 07 .
  • the central slats are curved to the greatest extent ( FIGS. 06 to 08 ).
  • the roof can naturally be additionally stiffened with reinforcing materials if necessary.
  • the guide rail [ 2 ] may consist of a deep plane and a further, shallow plane which extend one behind the other.
  • “one behind the other” means that there is a front and a rear plane, and the two planes extend, parallel to one another, along parts of the roof skin.
  • the rear plane is arranged in such a way that a long peg is capable of protruding through the front plane and being guided in the rear plane. At the same time, a shorter peg can be guided in the front plane without being affected by the rear plane. (This arrangement is intended to guarantee that the pegs, which are of different lengths (and have cross-sections that differ under certain circumstances), are guided in a targeted manner in the guide rail, i.e.
  • the number of planes can naturally be varied freely; thus it is possible to add, for example, a third or even a fourth plane in order to be able, optionally, to guide individual slats differently or even individually.
  • the folding-up kinematics may make it necessary for at least one element to go on being guided in a “controlled” manner, and for the other to be capable of moving “freely”.
  • These planes may be formed by way of grooves. Differently shaped pegs protrude into these grooves.
  • the path of said pegs within the planes of the guide rail is regulated by way of different peg lengths or peg widths. The longer peg runs along the deep plane, and the shorter peg runs along the shallow plane. It is thus possible, by means of the planes which lie one behind the other, to save on the height of the installation space.
  • the grooves may also lie one above the other.
  • the two planes extend parallel to the outer skin (roof skin) until the hood box is reached, so that the slats [ 1 ] can be displaced in the form of a continuous face. Only inside the hood box do the planes diverge from one another, for example in a V-shaped manner, so that, for example, the pegs for the deep plane continue to run along the roof contour, or horizontally in relation to the latter, and the short pegs are directed upwards.
  • the slats may be folded up in the downward direction or centrally, contrary to the illustrations. It is likewise conceivable for the long peg to not be exclusively responsible for deflection, and for the short peg to likewise be capable of deflecting the slats.
  • the planes do not have to be activated solely by way of the length of the pegs. There is also the possibility of regulating the activation by way of different cross-sections.
  • the slats may be driven by, for example, a chain or a threaded rod.
  • a cable pull should also be possible (as in conventional sliding roofs).
  • Slat structures which are connected in a material-bonded and/or form-locking manner can be moved by means of these guide kinematics, however it is also conceivable that it should be possible to move individual slats, which are not connected to one another in a material-bonded and/or form-locking manner, in this way.
  • FIGS. 01 to 08 The invention will be described in detail below and represented by means of the illustrations ( FIGS. 01 to 08 ):
  • FIG. 1- isometric representation of the roof (perspective) with the roof open;
  • the slats [ 1 ] consist of a plastic such as a transparent thermoplastic, for example polycarbonate (PC), polymethyl methacrylate (PMMA, acrylic glass or Plexiglas® [Röhm GmbH & Co. KG]).
  • the slats are connected to one another in a material-bonded and/or form-locking manner by means of hinges or of an elastomer, for example polyurethane, thermoplastic polyurethane or silicone.
  • the folding arrangement is accommodated in a device, for example a hood box or boot lid, which is provided for it.
  • a device for example a hood box or boot lid, which is provided for it.
  • Something of that kind is known, for example, from DE 102 07 729.
  • the folding arrangement may be manufactured in an injection-moulding process from a suitable thermoplastic, ideally polycarbonate, or even from deep-drawn sheet metal.
  • the folding arrangement may be manufactured, for example, by two-component injection-moulding technology, in which the slats are injected in the first step and the elastomer, such as TPU, is injected between said slats in the second step.
  • the slats would be injected in the first step in the injection-moulding process and a reactive mixture, which reacts to a thermosetting plastic, would be injected in the second step.
  • a reactive mixture which reacts to a thermosetting plastic
  • an elastomer would be used.
  • the slats would likewise be cast in a first step, and a reactive mixture would be poured into the cavity in a second step.
  • This reactive mixture may consist of the basic substances for a polyurethane, or of other reactive materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Laminated Bodies (AREA)
US12/738,756 2007-10-19 2008-10-07 Vehicle roof with high inherent stiffness Abandoned US20100244500A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007050461 2007-10-19
DE102007050461.8 2007-10-19
PCT/EP2008/008457 WO2009052946A1 (de) 2007-10-19 2008-10-07 Fahrzeugdach mit hoher eigensteifigkeit

Publications (1)

Publication Number Publication Date
US20100244500A1 true US20100244500A1 (en) 2010-09-30

Family

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Family Applications (2)

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US12/738,756 Abandoned US20100244500A1 (en) 2007-10-19 2008-10-07 Vehicle roof with high inherent stiffness
US12/254,409 Expired - Fee Related US7922243B2 (en) 2007-10-19 2008-10-20 Vehicle roof having high inherent stiffness

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/254,409 Expired - Fee Related US7922243B2 (en) 2007-10-19 2008-10-20 Vehicle roof having high inherent stiffness

Country Status (6)

Country Link
US (2) US20100244500A1 (zh)
EP (1) EP2212141A1 (zh)
JP (1) JP5346029B2 (zh)
KR (1) KR20100071073A (zh)
CN (1) CN101827721A (zh)
WO (1) WO2009052946A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100244500A1 (en) * 2007-10-19 2010-09-30 Bayer Materialscience Ag Vehicle roof with high inherent stiffness
DE102012101752B4 (de) * 2012-03-01 2015-06-03 Magna Car Top Systems Gmbh Kraftfahrzeug mit einer Dachöffnung
CN105128637B (zh) * 2015-09-21 2017-04-26 上海理工大学 折叠式汽车全景天窗
KR102136697B1 (ko) 2017-12-27 2020-07-23 에스케이머티리얼즈퍼포먼스 주식회사 우수한 방투습 성능을 갖는 유색 수지 조성물
DE102019104607A1 (de) * 2019-02-22 2020-08-27 Volkswagen Aktiengesellschaft Verfahren zur Herstellung von Bauteilen mit einer Biegestelle und ein solches Bauteil
US11390151B1 (en) * 2020-03-18 2022-07-19 Charles Lee Taggart Vehicle top and method of use
KR102488449B1 (ko) * 2022-05-18 2023-01-12 김경훈 차량용 루프 라이너
CN115056701B (zh) * 2022-06-15 2023-11-03 成都锦城学院 一种养蜂车车窗结构

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2594910A (en) * 1948-12-21 1952-04-29 Frank A Germann Roll-up type vehicle top cover
US6161893A (en) * 1994-07-05 2000-12-19 Asc Incorporated Sunshade for an automotive vehicle roof
US6186587B1 (en) * 1998-12-01 2001-02-13 Webasto Karosseriesysteme Gmbh Blind arrangement for vehicles
US7922243B2 (en) * 2007-10-19 2011-04-12 Bayer Materialscience Ag Vehicle roof having high inherent stiffness

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DE4233507C1 (de) 1992-10-06 1993-11-11 Webasto Karosseriesysteme Fahrzeugdach mit einer Folge von Lamellen
DE4415649C1 (de) 1994-05-04 1995-06-08 Daimler Benz Ag Lamellendach für ein Kraftfahrzeug
DE29607921U1 (de) 1995-07-04 1996-08-14 Vegla Vereinigte Glaswerke Gmbh, 52066 Aachen Aufrollbares Wandelement aus Glasleisten
US5823605A (en) * 1996-10-29 1998-10-20 Seargeant; Dennis Harold Truck box cover
DE19650854C1 (de) 1996-11-27 1998-03-12 Petri Ag Verfahren und Vorrichtung zur Herstellung eines Mehrschicht-Kunststoffteils
DE19711333A1 (de) * 1997-03-18 1998-09-24 Bayerische Motoren Werke Ag Lamellenhimmel für einen lichtdurchlässigen Abschnitt eines Fahrzeugdaches
US6186567B1 (en) * 1998-07-02 2001-02-13 John Blick Automatic clamping and placement holder
FR2786442B1 (fr) * 1998-12-01 2001-03-02 Peugeot Dispositif formant toit coulissant de vehicule automobile
DE29924264U1 (de) * 1999-06-26 2002-09-19 CTS Fahrzeug-Dachsysteme GmbH, 21079 Hamburg Dachsystem für ein Fahrzeug
DE19942426C2 (de) * 1999-09-06 2001-10-04 Webasto Vehicle Sys Int Gmbh Verdeckmechanik eines Faltdaches für ein Cabriolet
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Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594910A (en) * 1948-12-21 1952-04-29 Frank A Germann Roll-up type vehicle top cover
US6161893A (en) * 1994-07-05 2000-12-19 Asc Incorporated Sunshade for an automotive vehicle roof
US6186587B1 (en) * 1998-12-01 2001-02-13 Webasto Karosseriesysteme Gmbh Blind arrangement for vehicles
US7922243B2 (en) * 2007-10-19 2011-04-12 Bayer Materialscience Ag Vehicle roof having high inherent stiffness

Also Published As

Publication number Publication date
JP2011500410A (ja) 2011-01-06
WO2009052946A1 (de) 2009-04-30
CN101827721A (zh) 2010-09-08
JP5346029B2 (ja) 2013-11-20
KR20100071073A (ko) 2010-06-28
US7922243B2 (en) 2011-04-12
EP2212141A1 (de) 2010-08-04
US20090102246A1 (en) 2009-04-23

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