WO2020088917A1 - Motor vehicle having a movable airbag device in the roof region - Google Patents

Motor vehicle having a movable airbag device in the roof region Download PDF

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Publication number
WO2020088917A1
WO2020088917A1 PCT/EP2019/077712 EP2019077712W WO2020088917A1 WO 2020088917 A1 WO2020088917 A1 WO 2020088917A1 EP 2019077712 W EP2019077712 W EP 2019077712W WO 2020088917 A1 WO2020088917 A1 WO 2020088917A1
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WO
WIPO (PCT)
Prior art keywords
motor vehicle
roof
airbag device
seat
receptacle
Prior art date
Application number
PCT/EP2019/077712
Other languages
German (de)
French (fr)
Inventor
Bernhard Schmid
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2020088917A1 publication Critical patent/WO2020088917A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/214—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in roof panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01554—Seat position sensors

Definitions

  • the present invention relates to a motor vehicle with an airbag device which can be moved on a motor vehicle roof.
  • Airbag devices located in the roof area of motor vehicles are widely known from the prior art. They serve to reduce or even avoid possible injuries to a vehicle occupant as a result of at least one part of the body colliding with an airbag filled with a gas.
  • a gas bag emptied during an accident-free operation (the state of which is to be referred to as the first operating state in the following) is acted upon by a gas generator with a gas within milliseconds until the gas assumes a gas-filled state (which will be referred to as the second operating state in the following).
  • These known airbag devices are fastened in the roof area of the motor vehicles, which guarantees that the gas-filled airbag is not always optimally positioned relative to a motor vehicle occupant.
  • the motor vehicle initially has a roof and at least one seat that can be moved in a vehicle interior for a vehicle occupant. Furthermore, at least one receptacle provided with at least one airbag device is movably mounted on the roof.
  • the receptacle is set up in such a way that its position in relation to the seat is essentially constant in space. So if the seat moves in the motor vehicle, the seat will be added. Alternatively or cumulatively, it can be provided that the recording also follows a movement of a component of the seat, in particular the seat back. This advantageously creates a motor vehicle in which the relative position of the seat and airbag device remains essentially constant, even when the seat and / or one of its components is moving.
  • the type of movement of the seat and / or its component or the receptacle is not restricted according to the invention. Rather, the seat and / or its component or the receptacle can move translationally and / or rotationally in any spatial direction.
  • At least one first drive means located on the roof and / or on the receptacle and at least one second drive means located on the seat are provided in the motor vehicle, each with on-board electronics located in the motor vehicle are connected. This advantageously creates a coordinated and automated movement of the seat and the receptacle.
  • a visually appealing design of the motor vehicle according to the invention is created if the receiving means extends over the width of the roof or a part thereof.
  • the receptacle can only be used to accommodate the airbag device. However, it can also advantageously perform other useful and helpful functions for a vehicle occupant if the receptacle has a display, a sun visor, a receptacle for accommodating objects, for example glasses, and / or a lamp.
  • the airbag device has at least one tether that extends outside an airbag and is operatively connected to it. In this way, it is advantageously possible in a simple manner to generate a desired geometry of the gas bag filled with gas.
  • the airbag device itself comprises at least one gas bag. This can advantageously be made in one piece or, if it is made in several parts, can have gas-bag sections that are connected to one another in a material-to-material, non-positive or positive manner.
  • the gas required for the previously disclosed gas bag or gas bag sections is advantageously generated by at least one gas generator known per se, which can be designed as a pyrotechnic gas generator, cold gas generator or hybrid gas generator.
  • the gas generator, part of the Gas generators or all gas generators are operatively connected to the gas bag in that they are wholly or partially accommodated in it or the gas bag sections or in that they are connected to the gas bag or gas bag sections via gas guide means, in particular hoses.
  • a gas generator is triggered on the basis of at least one crash sensor which is known per se and is operatively connected to on-board electronics of the motor vehicle which are also known per se.
  • the gas bag provided according to the invention or the gas bag sections themselves can be made of any suitable material.
  • This material is particularly preferably a polyamide or a polyethylene terephthalate.
  • the gas bag or the gas bag sections can advantageously have at least one gas outlet means, through which the gas can escape after a defined period of time from the airbag device according to the invention, which is inflated in an accident situation.
  • the gas outlet means can in particular be designed as an outlet valve and / or in the form of defined openings in the outer skin of the respective gas bag section through which the gas exits peu-à-peu.
  • part of a motor vehicle 1 according to the invention is shown in a schematic side view. Specifically, an upper part of a motor vehicle 1 with a windshield 5 and a roof 10 is shown, which delimit part of a motor vehicle interior 15.
  • the seat 30 In the motor vehicle interior 15 there is a partially shown seat 30, having a seat back 20 and a headrest 25, which is shown in the figure in two positions: in a first position, which is drawn in the figure on the left with dashed lines and represents a starting position , and in a position representing an end position, which is drawn on the right with solid lines.
  • the figure therefore shows how a vehicle occupant, not shown here, has moved the seat 30 from an area adjacent to the windshield 5 into an area further away from the latter.
  • the seat 30 is provided with a drive means 35 which is operatively connected to an on-board electronics 40 known per se (cf. double arrow I).
  • a receptacle 50 mounted on the roof 10 by means of a drive means 45 is shown (cf. double arrow S), on which an airbag device 55 and a display 60, for example an LCD screen, are accommodated.
  • the drive means 45 and the airbag device 55 are operatively connected to the on-board electronics 40 (cf. double arrows II and III).
  • a movement of the receptacle 50 in accordance with the travel path S takes place along a rail 65 arranged on the roof 10.
  • This movement takes place in proportion to a movement of the seat 30: if the seat 30 is moved from left to right, as shown by way of example in the figure, the receptacle 50 also moves accordingly from left to right, the relative position of the seat 30 and the receptacle 50 remaining essentially constant or being maintained.
  • the airbag device 55 In the starting position shown on the left in the figure, the airbag device 55 is in an accident-free state, ie the airbag 70 present in the airbag device is emptied of gas.
  • the airbag device 55 is shown in an accident situation in which the gas bag 70 is filled with gas by a gas generator (not shown in each case).
  • the desired geometry of the gas bag 70 is supported by tether 75 arranged on the outside thereof. It is easy to see that the relative positional stability of the seat 30 and the receptacle 50 in an accident-free as well as an accident-prone situation is associated with an advantageous positioning of the gas bag 70 in the event of an accident.

Abstract

The aim of the invention is a simplified adoption of a required position of an airbag (70) in a motor vehicle (1) having a roof (10) and having at least one movable seat arrangement (30) in a vehicle interior (15). This aim is achieved, according to the invention, in that at least one receptacle (50) is mounted movably on the roof (10) and is configured in such a way that the position of the receptable is spatially constant relative to the seating arrangement (30).

Description

Kraftfahrzeug mit im Dachbereich verfahrbarer Airbagvorrichtung  Motor vehicle with an airbag device movable in the roof area
Die vorliegende Erfindung betrifft ein Kraftfahrzeug mit einer an einem Kraftfahrzeugdach verfahrbaren Airbagvorrichtung gemäß Anspruch 1 . The present invention relates to a motor vehicle with an airbag device which can be moved on a motor vehicle roof.
Im Dachbereich von Kraftfahrzeugen befindliche Airbagvorrichtungen sind aus dem Stand der Technik vielfach bekannt. Sie dienen dazu, etwaige unfallbedingte Verletzungen eines Fahrzeuginsassen zu verringern oder sogar gänzlich zu vermeiden, indem mindestens ein Körperteil desselben gegen ein mit einem Gas gefüllten Gassack prallt. Hierzu wird ein bei einem unfallfreien Betrieb gasentleerter Gassack (dessen Zustand im Folgenden als erster Betriebszustand bezeichnet werden soll) vermittels eines Gasgenerators innerhalb von Millisekunden mit einem Gas beaufschlagt, bis dieser einen gasbefüllten Zustand (der im Folgenden als zweiter Betriebszustand bezeichnet werden soll) einnimmt. Diese bekannten Airbagvorrichtungen sind im Dachbereich der Kraftfahrzeuge befestigt, was eine nicht immer optimale relative Positionierung des gasbefüllten Airbag gegenüber einem Kraftfahrzeuginsassen garantiert. Dies gilt umso mehr für insbesondere sich hoch autonom bewegende Kraftfahrzeuge, bei denen die klassischen Sitzplatzverteilungen zugunsten von im Kraftfahrzeuginneren frei positionierbaren Sitzgelegenheiten aufgehoben sind. Gerade für einen solchen Fall ist leicht zu erkennen, dass die bekannte Anordnung einer Airbagvorrichtung im Dachbereich eines Kraftfahrzeuges ihre Grenze bei den vergleichsweise großen zu überspannenden Räumen findet. Es ist Aufgabe der vorliegenden Erfindung, den genannten Nachteil zu überwinden. Airbag devices located in the roof area of motor vehicles are widely known from the prior art. They serve to reduce or even avoid possible injuries to a vehicle occupant as a result of at least one part of the body colliding with an airbag filled with a gas. For this purpose, a gas bag emptied during an accident-free operation (the state of which is to be referred to as the first operating state in the following) is acted upon by a gas generator with a gas within milliseconds until the gas assumes a gas-filled state (which will be referred to as the second operating state in the following). These known airbag devices are fastened in the roof area of the motor vehicles, which guarantees that the gas-filled airbag is not always optimally positioned relative to a motor vehicle occupant. This applies all the more to motor vehicles that move in a highly autonomous manner, in particular, in which the classic seat distributions are eliminated in favor of seating that can be freely positioned inside the motor vehicle. In such a case it is easy to see that the known arrangement of an airbag device in the roof area of a motor vehicle finds its limit in the comparatively large spaces to be covered. It is an object of the present invention to overcome the disadvantage mentioned.
Diese Aufgabe wird durch ein Kraftfahrzeug mit einer Airbagvorrichtung gemäß Patentanspruch 1 gelöst. Vorteilhafte Ausgestaltungen sind in den hierzu gehörigen Unteransprüchen angegeben. This object is achieved by a motor vehicle with an airbag device according to claim 1. Advantageous refinements are specified in the associated subclaims.
Das erfindungsgemäße Kraftfahrzeug weist zunächst ein Dach und mindestens eine in einem Fahrzeuginnenraum verfahrbare Sitzgelegenheit für einen Fahrzeuginsassen auf. Ferner ist an dem Dach mindestens eine mit mindestens einer Airbagvorrichtung versehene Aufnahme verfahrbar gelagert. Dabei ist die Aufnahme derart eingerichtet, dass ihre Position gegenüber der Sitzgelegenheit räumlich im Wesentlichen konstant ist. Bewegt sich also die Sitzgelegenheit in dem Kraftahrzeug, so folgt die Aufnahme der Sitzgelegenheit nach. Alternativ oder kumulativ kann vorgesehen sein, dass die Aufnahme auch einer Bewegung einer Komponente der Sitzgelegenheit, insbesondere der Sitzlehne, nachfolgt. In vorteilhafter Weise ist hierdurch ein Kraftfahrzeug geschaffen, bei dem die relative Position von Sitzgelegenheit und Airbagvorrichtung im Wesentlichen konstant bleibt, auch wenn sich der Sitz und/oder eine seiner Komponenten bewegt. The motor vehicle according to the invention initially has a roof and at least one seat that can be moved in a vehicle interior for a vehicle occupant. Furthermore, at least one receptacle provided with at least one airbag device is movably mounted on the roof. The receptacle is set up in such a way that its position in relation to the seat is essentially constant in space. So if the seat moves in the motor vehicle, the seat will be added. Alternatively or cumulatively, it can be provided that the recording also follows a movement of a component of the seat, in particular the seat back. This advantageously creates a motor vehicle in which the relative position of the seat and airbag device remains essentially constant, even when the seat and / or one of its components is moving.
Die Art der Bewegung der Sitzgelegenheit und/oder deren Komponente bzw. der Aufnahme erfährt erfindungsgemäß keine Einschränkung. Vielmehr können sich die Sitzgelegenheit und/oder ihre Komponente bzw. die Aufnahme in eine beliebige Raumrichtung translatorisch und/oder rotatorisch bewegen. The type of movement of the seat and / or its component or the receptacle is not restricted according to the invention. Rather, the seat and / or its component or the receptacle can move translationally and / or rotationally in any spatial direction.
Gemäß einer bevorzugten Ausführungsform sind in dem Kraftfahrzeug mindestens ein am Dach und/oder an der Aufnahme befindliches erstes Antriebsmittel sowie mindestens ein an der Sitzgelegenheit befindliches zweites Antriebsmittel vorgesehen, die jeweils mit einer in dem Kraftfahrzeug befindlichen Bordelektronik wirkverbunden sind. In vorteilhafter Weise ist hierdurch eine koordinierte und automatisierte Bewegung von Sitzgelegenheit und Aufnahme geschaffen. According to a preferred embodiment, at least one first drive means located on the roof and / or on the receptacle and at least one second drive means located on the seat are provided in the motor vehicle, each with on-board electronics located in the motor vehicle are connected. This advantageously creates a coordinated and automated movement of the seat and the receptacle.
Eine optisch ansprechende Ausgestaltung des erfindungsgemäßen Kraftfahrzeuges ist geschaffen, wenn sich das Aufnahmemittel über die Breite des Daches oder einen Anteil hiervon erstreckt. A visually appealing design of the motor vehicle according to the invention is created if the receiving means extends over the width of the roof or a part thereof.
Dem Grundsatz nach kann die Aufnahme allein zur Unterbringung der Airbagvorrichtung dienen. Sie kann jedoch in vorteilhafter Weise auch für einen Fahrzeuginsassen weitere sinnvolle und hilfreiche Funktionen ausüben, wenn die Aufnahme ein Display, eine Sonnenblende, eine Aufnahmekammer zur Unterbringung von Gegenständen, beispielsweise Brillen, und/oder ein Leuchtmittel aufweist. In principle, the receptacle can only be used to accommodate the airbag device. However, it can also advantageously perform other useful and helpful functions for a vehicle occupant if the receptacle has a display, a sun visor, a receptacle for accommodating objects, for example glasses, and / or a lamp.
Gemäß einer weiteren bevorzugten Ausführungsform weist die Airbagvorrichtung mindestens ein außerhalb eines Gassacks verlaufendes, mit diesem wirkverbundenes Fangband auf. Hierdurch ist es in vorteilhafter Weise auf einfache Art möglich, eine gewünschte Geometrie des mit Gas gefüllten Gassacks zu erzeugen. According to a further preferred embodiment, the airbag device has at least one tether that extends outside an airbag and is operatively connected to it. In this way, it is advantageously possible in a simple manner to generate a desired geometry of the gas bag filled with gas.
Die Airbagvorrichtung selbst umfasst mindestens einen Gassack. Dieser kann in vorteilhafter Weise einteilig ausgebildet sein oder, sofern er mehrteilig ausgebildet ist, stoffschlüssig, kraftschlüssig oder formschlüssig miteinander verbundene Gassackabschnitte aufweisen. The airbag device itself comprises at least one gas bag. This can advantageously be made in one piece or, if it is made in several parts, can have gas-bag sections that are connected to one another in a material-to-material, non-positive or positive manner.
Das für den zuvor offenbarten Gassack bzw. die Gassackabschnitte erforderliche Gas wird in vorteilhafter Weise durch mindestens einen an sich bekannten Gasgenerator erzeugt, der als pyrotechnischer Gasgenerator, Kaltgasgenerator oder Hybridgasgenerator ausgebildet sein kann. Der Gasgenerator, ein Teil der Gasgeneratoren oder alle Gasgeneratoren sind mit dem Gassack wirkverbunden, indem diese ganz oder teilweise in ihm bzw. den Gassackabschnitten untergebracht sind oder indem diese mit dem Gassack bzw. den Gassackabschnitten über Gasführungsmittel, insbesondere Schläuche, verbunden sind. Eine Auslösung eines Gasgenerators erfolgt aufgrund mindestens eines an sich bekannten, mit einer ebenfalls an sich bekannten Bordelektronik des Kraftfahrzeuges wirkverbundenen Crashsensors. The gas required for the previously disclosed gas bag or gas bag sections is advantageously generated by at least one gas generator known per se, which can be designed as a pyrotechnic gas generator, cold gas generator or hybrid gas generator. The gas generator, part of the Gas generators or all gas generators are operatively connected to the gas bag in that they are wholly or partially accommodated in it or the gas bag sections or in that they are connected to the gas bag or gas bag sections via gas guide means, in particular hoses. A gas generator is triggered on the basis of at least one crash sensor which is known per se and is operatively connected to on-board electronics of the motor vehicle which are also known per se.
Der erfindungsgemäß vorgesehene Gassack oder die Gassackabschnitte selbst können aus jedem geeigneten Werkstoff ausgebildet sein. In besonders bevorzugter Weise ist dieser Werkstoff ein Polyamid oder ein Polyethylenterephtalat. The gas bag provided according to the invention or the gas bag sections themselves can be made of any suitable material. This material is particularly preferably a polyamide or a polyethylene terephthalate.
In vorteilhafter Weise können der Gassack bzw. die Gassackabschnitte über mindestens ein Gasauslassmittel verfügen, durch welches das Gas nach einem definierten Zeitraum aus der erfindungsgemäßen, in einer Unfallsituation aufgeblasenen Airbagvorrichtung austreten kann. Das Gasauslassmittel kann insbesondere als Auslassventil ausgebildet sein und/oder in Form von definierten Öffnungen in der Außenhaut des jeweiligen Gassackabschnittes, durch die das Gas peu-ä-peu austritt. The gas bag or the gas bag sections can advantageously have at least one gas outlet means, through which the gas can escape after a defined period of time from the airbag device according to the invention, which is inflated in an accident situation. The gas outlet means can in particular be designed as an outlet valve and / or in the form of defined openings in the outer skin of the respective gas bag section through which the gas exits peu-à-peu.
Die oben genannte Aufgabe wird ebenfalls durch ein Kraftfahrzeug gelöst, das mindestens eine Airbagvorrichtung der zuvor offenbarten Art aufweist. Die dargestellten Vorteile gelten adäquat. The above-mentioned object is also achieved by a motor vehicle which has at least one airbag device of the type disclosed above. The advantages shown apply adequately.
Nachstehend erfolgt unter Bezugnahme auf die beigefügte, nicht maßstäbliche Figur eine detaillierte, nicht präjudizierende, insbesondere einschränkende, Beschreibung eines Ausführungsbeispieles der vorliegenden Erfindung. In der Figur ist ein Teil eines erfindungsgemäßen Kraftfahrzeuges 1 in schematischer Seitenansicht dargestellt. Konkret ist ein oberer Teil eines Kraftahrzeuges 1 mit einer Frontscheibe 5 und einem Dach 10 gezeigt, die einen Teil eines Kraftfahrzeug innen raumes 15 begrenzen. A detailed, non-prejudicial, in particular restrictive, description of an exemplary embodiment of the present invention is given below with reference to the attached figure, which is not to scale. In the figure, part of a motor vehicle 1 according to the invention is shown in a schematic side view. Specifically, an upper part of a motor vehicle 1 with a windshield 5 and a roof 10 is shown, which delimit part of a motor vehicle interior 15.
In dem Kraftfahrzeuginnenraum 15 befindet sich eine teilweise gezeigte, eine Sitzlehne 20 und eine Kopfstütze 25 aufweisende Sitzgelegenheit 30, die in der Figur in zwei Positionen dargestellt ist: In einer ersten Position, die in der Figur links mit gestrichelten Linien gezeichnet ist und eine Ausgangsposition repräsentiert, sowie in einer eine Endposition repräsentierenden Position, die in der Figur rechts mit durchgezogenen Linien gezeichnet ist. Mithin ist in der Figur dargestellt, wie ein hier nicht gezeigter Fahrzeuginsasse die Sitzgelegenheit 30 von einem der Frontscheibe 5 benachbarten Bereich in einen von dieser weiter entfernten Bereich verfahren hat. Hierzu ist die Sitzgelegenheit 30 mit einem Antriebsmittel 35 versehen, das mit einer an sich bekannten Bordelektronik 40 wirkverbunden ist (vgl. Doppelpfeil I). In the motor vehicle interior 15 there is a partially shown seat 30, having a seat back 20 and a headrest 25, which is shown in the figure in two positions: in a first position, which is drawn in the figure on the left with dashed lines and represents a starting position , and in a position representing an end position, which is drawn on the right with solid lines. The figure therefore shows how a vehicle occupant, not shown here, has moved the seat 30 from an area adjacent to the windshield 5 into an area further away from the latter. For this purpose, the seat 30 is provided with a drive means 35 which is operatively connected to an on-board electronics 40 known per se (cf. double arrow I).
Entsprechend der zuvor beschriebenen Darstellungsweise ist eine am Dach 10 vermittels eines Antriebsmittels 45 verfahrbar gelagerte Aufnahme 50 gezeigt (vgl. Doppelpfeil S), an der eine Airbagvorrichtung 55 und ein Display 60, beispielsweise ein LCD-Bildschirm, aufgenommen sind. Das Antriebsmittel 45 und die Airbagvorrichtung 55 sind mit der Bordelektronik 40 wirkverbunden (vgl. Doppelpfeile II und III). Eine Bewegung der Aufnahme 50 entsprechend dem Verfahrweg S erfolgt entlang einer am Dach 10 angeordneten Schiene 65. Diese Bewegung erfolgt proportional zu einer Bewegung der Sitzgelegenheit 30: Wenn also die Sitzgelegenheit 30, wie in der Figur beispielhaft gezeigt, von links nach rechts bewegt wird, so bewegt sich auch die Aufnahme 50 entsprechend von links nach rechts, wobei die relative Position von Sitzgelegenheit 30 und Aufnahme 50 im Wesentlichen konstant bzw. erhalten bleibt. In der in der Figur links gezeigten Ausgangsposition befindet sich die Airbagvorrichtung 55 in einem unfallfreien Zustand, d.h. der in der Airbagvorrichtung vorhandene Gassack 70 ist gasentleert. In der in der Figur rechts gezeigten Endposition hingegen ist die Airbagvorrichtung 55 in einer Unfallsituation gezeigt, bei der der Gassack 70 durch einen Gasgenerator mit Gas (jeweils nicht gezeigt) befüllt ist. Die gewünschte Geometrie des Gassackes 70 wird durch an dessen Außenseite angeordnete Fangbänder 75 unterstützt. Es ist leicht zu erkennen, dass die relative Positionskonstanz von Sitzgelegenheit 30 und Aufnahme 50 in einer unfallfreien wie auch einer unfallbehafteten Situation mit einer vorteilhaften Positionierung des Gassacks 70 bei einem Unfall einhergeht. In accordance with the previously described representation, a receptacle 50 mounted on the roof 10 by means of a drive means 45 is shown (cf. double arrow S), on which an airbag device 55 and a display 60, for example an LCD screen, are accommodated. The drive means 45 and the airbag device 55 are operatively connected to the on-board electronics 40 (cf. double arrows II and III). A movement of the receptacle 50 in accordance with the travel path S takes place along a rail 65 arranged on the roof 10. This movement takes place in proportion to a movement of the seat 30: if the seat 30 is moved from left to right, as shown by way of example in the figure, the receptacle 50 also moves accordingly from left to right, the relative position of the seat 30 and the receptacle 50 remaining essentially constant or being maintained. In the starting position shown on the left in the figure, the airbag device 55 is in an accident-free state, ie the airbag 70 present in the airbag device is emptied of gas. In contrast, in the end position shown on the right in the figure, the airbag device 55 is shown in an accident situation in which the gas bag 70 is filled with gas by a gas generator (not shown in each case). The desired geometry of the gas bag 70 is supported by tether 75 arranged on the outside thereof. It is easy to see that the relative positional stability of the seat 30 and the receptacle 50 in an accident-free as well as an accident-prone situation is associated with an advantageous positioning of the gas bag 70 in the event of an accident.
Bezugszeichenliste Reference symbol list
1 Kraftfahrzeug 1 motor vehicle
5 Frontscheibe  5 windscreen
10 Dach  10 roof
15 Kraftfahrzeuginnenraum  15 motor vehicle interior
20 Sitzlehne  20 seat back
25 Kopfstütze  25 headrest
30 Sitzgelegenheit  30 seats
35 Antriebsmittel der Sitzgelegenheit  35 drive means of seating
40 Bordelektronik  40 on-board electronics
45 Antriebsmittel  45 drive means
50 Aufnahme  50 recording
55 Airbagvorrichtung 60 Display 55 airbag device 60 display
65 Schiene  65 rail
70 Gassack  70 gas bag
75 Fangbänder  75 tethers
S Verfahrweg x, y, z Kartesisches Koordinatensystem gemäß ISO 4130-1978 S Travel path x, y, z Cartesian coordinate system according to ISO 4130-1978
Wirkverbindungen Active connections

Claims

Ansprüche Expectations
1. Kraftfahrzeug (1 ), mit einem Dach (10) und mindestens einer in einem Fahrzeuginnenraum (15) verfahrbaren Sitzgelegenheit (30), dadurch gekennzeichnet, dass mindestens eine mit mindestens einer Airbagvorrichtung (55) versehene Aufnahme (50) verfahrbar an dem Dach (10) gelagert und derart eingerichtet ist, dass ihre Position gegenüber der Sitzgelegenheit (30) räumlich konstant ist. 1. Motor vehicle (1) with a roof (10) and at least one seat (30) which can be moved in a vehicle interior (15), characterized in that at least one receptacle (50) provided with at least one airbag device (55) can be moved on the roof (10) is mounted and set up in such a way that its position in relation to the seat (30) is spatially constant.
2. Kraftfahrzeug (1 ) nach Anspruch 1 , gekennzeichnet durch mindestens ein am Dach (10) und/oder an der Aufnahme (50) befindliches erstes Antriebsmittel (45) sowie mindestens ein an der Sitzgelegenheit (30) befindliches zweites Antriebsmittel (35), die jeweils mit einer in dem Kraftfahrzeug (1 ) befindlichen Bordelektronik (40) wirkverbunden sind. 2. Motor vehicle (1) according to claim 1, characterized by at least one on the roof (10) and / or on the receptacle (50) located first drive means (45) and at least one on the seat (30) located second drive means (35), which are each operatively connected to on-board electronics (40) located in the motor vehicle (1).
3. Kraftfahrzeug (1 ) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die Aufnahme (50) über die Breite des Daches (10) oder einen Anteil hiervon erstreckt. 3. Motor vehicle (1) according to claim 1 or 2, characterized in that the receptacle (50) extends over the width of the roof (10) or a portion thereof.
4. Kraftfahrzeug (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aufnahme (50) ein Display (60), eine Sonnenblende, eine Aufnahmekammer und/oder ein Leuchtmittel aufweist. 4. Motor vehicle (1) according to one of the preceding claims, characterized in that the receptacle (50) has a display (60), a sun visor, a receiving chamber and / or a lamp.
5. Kraftfahrzeug (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Airbagvorrichtung (55) mindestens ein außerhalb eines Gassacks (70) verlaufendes, mit diesem wirkverbundenes Fangband (75) aufweist. 5. Motor vehicle (1) according to one of the preceding claims, characterized in that the airbag device (55) has at least one outside of an airbag (70), which is operatively connected to the tether (75).
PCT/EP2019/077712 2018-10-31 2019-10-14 Motor vehicle having a movable airbag device in the roof region WO2020088917A1 (en)

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