DE19710417B4 - Arrangement of a front flap on a vehicle - Google Patents
Arrangement of a front flap on a vehicle Download PDFInfo
- Publication number
- DE19710417B4 DE19710417B4 DE1997110417 DE19710417A DE19710417B4 DE 19710417 B4 DE19710417 B4 DE 19710417B4 DE 1997110417 DE1997110417 DE 1997110417 DE 19710417 A DE19710417 A DE 19710417A DE 19710417 B4 DE19710417 B4 DE 19710417B4
- Authority
- DE
- Germany
- Prior art keywords
- front flap
- vehicle
- arrangement
- pedestrian
- energy
- 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 - Fee Related
Links
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
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/38—Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
Abstract
Anordnung einer Frontklappe an einem Fahrzeug, mit einer Einrichtung, die bei einer Kollision des Fahrzeugs mit einem Fußgänger die Frontklappe aus ihrer geschlossenen Ausgangslage in eine angehobene Position verlagert, dadurch gekennzeichnet, daß eine energiespeichernde Einrichtung (6) vorgesehen ist, die einerseits im Normalbetrieb des Fahrzeugs das Öffnen der Frontklappe (1) unterstützt und andererseits im Fall einer Kollision des Fahrzeugs mit einem Fußgänger das Anheben der Frontklappe (1) bewirkt.arrangement a front door on a vehicle, with a device that in a collision of the vehicle with a pedestrian, the front door of her shifted starting position in a raised position, characterized in that a energy storage device (6) is provided, on the one hand in normal operation of the vehicle, the opening of the front door (1) is supported and on the other hand, in the event of a collision of the vehicle with a pedestrian Lifting the front flap (1) causes.
Description
Die Erfindung bezieht sich auf eine Anordnung einer Frontklappe an einem Fahrzeug nach dem Oberbegriff des Anspruchs 1.The The invention relates to an arrangement of a front flap on a Vehicle according to the preamble of claim 1.
Um
bei einer Kollision eines Fußgängers mit einem
Kraftfahrzeug das Ausmaß von
Verletzungen, insbesondere im Brust- und Kopfbereich, zu minimieren,
ist aus der
Aufgabe der Erfindung ist es, eine einfach aufgebaute Anordnung für eine im Fall einer Fußgängerkollision verlagerbare Frontklappe zu schaffen.task The invention is to provide a simple structure for a in the Fall of a pedestrian collision to create a movable front flap.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.These The object is solved by the features of claim 1.
Durch die gemäß Anspruch 1 erfindungsgemäß erreichte Doppelfunktion der energiespeichernden Einrichtung ist keine eigene Antriebseinrichtung zur Verlagerung der Frontklappe erforderlich. Durch das Heranziehen der sowieso vorhan denen Einrichtung zur Unterstützung der Öffnungsbewegung der Frontklappe kann mit nur sehr geringem Zusatzaufwand die Verlagerung der Frontklappe bei einer Fußgängerkollision realisiert werden. Außerdem wird nur wenig zusätzlicher Bauraum benötigt, bei gleichzeitig geringem Mehrgewicht. Im Unterschied zu Sicherheitseinrichtungen, die ausschließlich für den Notfall konzipiert sind, zeichnet sich die erfindungsgemäße Lösung durch eine hohe Zuverlässigkeit aus, da sie im Normalbetrieb des Fahrzeugs in unregelmäßigen Zeitabständen benutzt und damit gangbar gehalten wird.By those according to claim 1 reached according to the invention Dual function of energy storage device is not its own Drive device required for the displacement of the front flap. By using the anyway IN ANY means for supporting the opening movement The front flap can be relocated with very little additional effort the front door in a pedestrian collision will be realized. Furthermore will be little additional Space required, at the same time with a little extra weight. Unlike safety devices, the exclusively for the Emergency designed, the solution according to the invention is characterized by a high reliability because it uses in normal operation of the vehicle at irregular intervals and thus kept practicable.
Neben energiespeichernden Einrichtungen (z. B. Federn – siehe auch Ansprüche 4 und 5) können grundsätzlich auch Energie erzeugende Einrichtungen, wie beispielsweise elektrische, hydraulische oder pneumatische Antriebe, die erfindungsgemäße Doppelfunktion wahrnehmen (Ansprüche 6 und 7).Next Energy-storing devices (eg springs - see also claims 4 and 5) in principle also energy generating devices, such as electrical, hydraulic or pneumatic drives, the double function according to the invention perceive (claims 6 and 7).
Im Bereich der Windschutzscheibe angeschlagene Frontklappen (Anspruch 2) sind weit verbreitet, um den Zugang zum Motor- oder Gepäckraum von der Vorderseite des Fahrzeuges her zu ermöglichen. Um eine Verlagerung des fahrtrichtungsabgewandten Endabschnittes der Frontklappe zu ermöglichen, wird die hintenliegende Schwenkachse der Frontklappe im Fall einer Fußgängerkollision freigegeben und kann nach oben verlagert werden. Dieses einfache Wirkprinzip gemäß Anspruch 2 ist mit geringem Aufwand umsetzbar. Die am vorderen Endabschnitt der Fahrzeugkarosserie befindliche Verriegelungseinrichtung für die Frontklappe bildet im Kollisionsfall die Drehachse für die Verlagerung, was aufgrund des Spiels in der Verriegelungseinrichtung in der Regel ohne weitere Zusatzmaßnahmen möglich ist.in the Area of the windshield hinged front doors (claim 2) are widely used to access the engine or luggage compartment of to allow the front of the vehicle ago. To a relocation the direction of travel away from the end portion of the front door to enable, is the rear pivot axis of the front door in the case of pedestrian collision released and can be moved upwards. This simple Working principle according to claim 2 can be implemented with little effort. The at the front end section the vehicle body located locking device for the front door forms in case of collision, the axis of rotation for the displacement, which due the game in the locking device usually without further additional measures possible is.
Selbstverständlich kann die Erfindung sinngemäß auch bei frontseitig angeschlagenen Frontklappen eingesetzt werden. Da insbesondere der Kopf eines Fußgängers bei einer Kollision mit einem Fahrzeug häufig im hinteren Bereich der Frontklappe auftrifft, ist die Lösung gemäß Anspruch 2 vorteilhafter. Außerdem wird durch eine Anhebung des rückwärtigen Bereichs der Frontklappe das Risiko für einen Fußgänger, mit dem Kopf auf die (Antriebswellen der) Scheibenwischer aufzutreffen, deutlich vermindert.Of course you can the invention mutatis mutandis front hinged front flaps are used. In particular the head of a pedestrian at a collision with a vehicle often in the rear of the Front flap hits, is the solution according to claim 2 more advantageous. Furthermore is by raising the rear area the front flap the risk for a pedestrian, with hit the head on the (drive shafts of) windscreen wipers, significantly reduced.
Da im Normalbetrieb der Frontklappe die hintenliegende Scharniereinrichtung die Führung und Fixierung der Frontklappe bewerkstelligt, diese Scharniereinrichtung jedoch bei einer Fußgängerkollision erfindungsgemäß außer Eingriff gesetzt wird, sieht Anspruch 3 eine zusätzliche Einrichtung zur Führung der Frontklappe vor, die unter allen Umständen ein Loslösen der Frontklappe vom Kraftfahrzeug verhindert. Die energiespeichernde Einrichtung ist für diese Anforderung in der Regel nicht ausgebildet, ebensowenig wie die Verriegelung der Frontklappe am vorderen Endabschnitt der Fahrzeugkarosserie. Daneben kommt der Führungseinrichtung gemäß Anspruch 3 die Funktion einer Wegbegrenzung bei einer Verlagerung der Frontklappe im Fall einer Fußgängerkollision zu.There during normal operation of the front flap, the rear hinging device the leadership and fixing the front door accomplished this hinge but in a pedestrian collision disengaged according to the invention is set, sees claim 3 an additional means for managing the Front flap in front, which under all circumstances a detachment of the Front flap prevented from the motor vehicle. The energy-saving Facility is for this Requirement usually not trained, just as little as the Locking the front door at the front end portion of the vehicle body. Besides comes the leadership device according to claim 3 the function of a Wegbegrenzung with a shift of the front door in the case of a pedestrian collision to.
Mechanische Federn gemäß Anspruch 4 sind kostengünstig herzustellen, einfach im Aufbau, setzen die gespeicherte Energie innerhalb kurzer Zeit frei und sind auch nach längerem Nichtgebrauch mit großer Zuverlässigkeit funktionsfähig. Außerdem kann bei kleineren Kollisionen und bei Fehlauslösungen das System ohne weiteres in seine Ausgangslage zurückgebracht werden, indem die Feder manuell (beispielsweise durch Niederdrücken der hinteren Kante der Frontklappe) wieder in ihre gespannte Lage gebracht wird.mechanical Springs according to claim 4 are inexpensive Produce, simple in construction, put the stored energy free within a short time and are also after a long period of disuse with great reliability functioning. In addition, can for smaller collisions and in case of false triggering the system easily returned to its original position be done by the spring manually (for example, by depressing the rear edge of the front flap) brought back into its tensioned position becomes.
In vielen Fällen sind Gasfedern zur Unterstützung der Öffnungsbewegung einer Frontklappe vorgesehen (Anspruch 5). Bei der erfindungsgemäßen Verwendung der Gasfeder auch zur Verlagerung der Frontklappe bei einer Fußgängerkollision ist diese so auszulegen, daß die Verlagerungsbewegung mit der geforderten Geschwindigkeit erfolgt. Außerdem ist im Rahmen der regelmäßigen Wartung des Kraftfahrzeuges die Dichtigkeit und die Funktionsfähigkeit der Gasfeder zu überprüfen.In many cases, gas springs are provided to support the opening movement of a front door (claim 5). When using the gas spring according to the invention also for the displacement of the front flap in a pedestrian collision, this is to be interpreted so that the displacement movement takes place at the required speed. Except this is in the context of regular maintenance of the motor vehicle to check the tightness and operability of the gas spring.
Durch eine im Frontbereich des Fahrzeugs angeordnete Sensoreinrichtung, die die Kollision mit einem Fußgänger erkennt und die Verlagerung der Frontklappe einleitet, kann erreicht werden, daß die Verlagerung der Frontklappe abgeschlossen ist, bevor der Aufprall des Fußgängers auf die Frontklappe erfolgt. Hierdurch wird verhindert, daß die emporschnellende Frontklappe dem Fußgänger mit erhöhter Geschwindigkeit entgegenkommt und dadurch das Verletzungsrisiko erhöhen würde. Außerdem wird gewährleistet, daß zum Zeitpunkt des Fußgängeraufpralls an der Frontklappe bereits der maximale Deformationsweg zur Verfügung steht und die energiespeichernde Einrichtung in der Anfangsphase des Fußgängeraufpralls einer Rückverlagerung der Frontklappe einen möglichst geringen Widerstand entgegensetzt (weich einsetzender Abbau der kinetischen Energie).By a sensor device arranged in the front region of the vehicle, which detects the collision with a pedestrian and initiates the displacement of the front door can be achieved that the relocation the front door is completed before the impact of the pedestrian on the front flap takes place. This prevents the fast-rising Front flap with the pedestrian increased Speed and thereby the risk of injury increase would. In addition, will guaranteed that to Time of pedestrian impact the maximum deformation path is already available on the front flap and the energy storage device in the initial stages of pedestrian impact a shift back the front flap as possible low resistance opposes (soft onset degradation of kinetic energy).
Ein mögliches Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher beschrieben. Die einzige Figur zeigt den Frontbereich eines Kraftfahrzeuges in schematisierter Seitenansicht.One potential embodiment The invention is illustrated in the drawing and will be described below described in more detail. The single FIGURE shows the front of a motor vehicle in schematic side view.
Die
Frontklappe
Die
Schwenkbewegung der Frontklappe
Im
Fall einer Kollision des Fahrzeugs mit einem Fußgänger steuert eine im Bereich
des vorderen Stoßfängers
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997110417 DE19710417B4 (en) | 1997-03-13 | 1997-03-13 | Arrangement of a front flap on a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997110417 DE19710417B4 (en) | 1997-03-13 | 1997-03-13 | Arrangement of a front flap on a vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19710417A1 DE19710417A1 (en) | 1998-09-17 |
DE19710417B4 true DE19710417B4 (en) | 2008-04-03 |
Family
ID=7823265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997110417 Expired - Fee Related DE19710417B4 (en) | 1997-03-13 | 1997-03-13 | Arrangement of a front flap on a vehicle |
Country Status (1)
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DE (1) | DE19710417B4 (en) |
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Also Published As
Publication number | Publication date |
---|---|
DE19710417A1 (en) | 1998-09-17 |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
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Effective date: 20141001 |