• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for hiring a bonnet, which has a hinge with an articulated arm (1) on which a hood part (2) which can be fastened to the bonnet is articulated by means of an additional rotation axis (6). According to the employment takes place by a change in the angle between the articulated arm (1) and hood part (2) by means of a pyrotechnic activator. This can be done by means of two scenes (4, 5) which are provided in the articulated arm (1) and in the hood part (2) and which are penetrated by a pin (7) which is pyrotechnic driven by the activator (8). The igniter-side attachment of the activator (8) takes place on the articulated arm (1). The link (5) in the articulated arm (1) runs in a straight line and axially to the direction of the piston rod of the activator (8) in order to avoid unnecessary transverse forces. To secure the starting position and the end position of the hood, the two scenes (4, 5) extend at the ends substantially parallel. The angle between the two scenes (4, 5) is less in the second half of the delivery path than in the first half, so that the speed of the hood in this area decreases.
    公开号:AT511710A4
    申请号:T14252011
    申请日:2011-10-03
    公开日:2013-02-15
    发明作者:
    申请人:Hirtenberger Automotive Safety Gmbh & Co Kg；
    IPC主号:
    专利说明:

    1
    The present invention relates to a device for hiring a hood, which has a hinge with an articulated arm, on which a hood part which can be fastened to the hood is articulated by means of an additional rotation axis.
    The simplest construction of a bonnet hinge is a single-pivot hinge: in its normal construction, it has a hinge base, an articulated arm, a bushing (which forms the hinge of the pivotal hinge), and a hood (e.g., a bolting plate) rigidly connected to the articulated arm and hood. The lower part of the hinge is fastened to the side member, the hood part or the screw-on plate to the bonnet. The opening of the bonnet in normal operation takes place by rotation of the articulated arm to the one joint of the Einelenkscharniers.
    Alternatively, other hinges are known, especially four joints (four-bar linkages) are widely used. In these, two different length handlebars are rotatably mounted on the articulated arm, which are rotatably mounted with their other ends on the lower hinge part. This results in the opening of the hood overall movement, in which the hood pivots about a virtual axis of rotation, which shifts during the opening movement.
    The current laws and classifications for motor vehicles (NCAP) require in addition to ever better protection for occupants and improvements to protect pedestrians. This is achieved by using the bonnet and thus achieving a space between bonnet and hard components in the engine compartment. In the case of an impact, this creates an additional deformation path in order to be able to specifically reduce the energy of the pedestrian.
    The existing solutions are either very complex or require the attachment of the drive unit to or ir. The upper side member, which means forcibly weakening the crash structure. Furthermore, drive units in the engine compartment are particularly exposed to environmental influences such as moisture and high temperature. 2
    It is already known to extend a single-pivot hinge to achieve the pedestrian protection function by a further axis of rotation. This creates a further degree of freedom, the hood can be made by raising the axis of rotation. As a rule, the pyrotechnic drive takes place from the longitudinal member, which - as already mentioned - leads to its weakening.
    A special feature is DE 102008011722 Al: Here, the unlocking of the articulated arm and bolting plate via a hook, which is opened when activated.
    A device of the type mentioned is known from DE 102008050678 Al. It is there described a four-bar linkage, on the articulated arm a hood part is pivotally mounted. In normal operation, the pivoting movement is prevented by two shear pins. Upon actuation of an actuator, the two shear pins are sheared off and as a result the articulated arm and the hood part are raised (the latter pivoted) so that the hood is raised.
    All these systems have in common that the upper end position of the hood is not attenuated during the deployment process and that the energy of KopfaufSchlages must be absorbed by the activator, which causes further effort.
    It is an object of the present invention to provide a Einelenkscharnier as described above with a piecing function for raising the hood in the event of a collision with a pedestrian, wherein the design should be as robust and simple.
    This object is achieved by a device of the type mentioned in the present invention, that the employment takes place by a change in the angle between the articulated arm and hood part by means of a pyrotechnic activator.
    In contrast to the known operations so not the axis of rotation or the articulated arm is raised (which leads to a pivoting of the hood part in the sequence), but it is the 3rd
    Hood part actively pivoted, which leads to an increase in the hood. However, this happens only if the device is installed as intended, as will be explained in more detail with reference to the figures. If the device according to the invention is triggered without it being installed, then only pivoting of the hood part takes place, but no lifting of the additional rotary axis.
    The change of the angle can be done in a simple and robust manner by means of two scenes, which are provided in Geienkarm and in the hood part and which are penetrated by a pin which is pyrotechnic driven by the activator.
    It is useful if the igniter-side attachment of the activator is located on the articulated arm. In this way, no change in Fahrzeugkonstrukuion is required, in particular, the upper side member does not need to be weakened for additional attachment.
    So that the articulated arm does not have to be made too thick, it is expedient that the link in the articulated arm is rectilinear and extends axially to the direction of the piston rod of the activator. As a result, on the one hand, no lateral forces act on the activator, and this does not have to perform any rotational movement. On the other hand, acting on the articulated arm only the absolutely necessary forces for hiring the hood.
    It is advantageous if the backdrop in the hood part in the region of the initial position of the pin is substantially parallel to the slide in the articulated arm to secure the initial position of the hood; Similarly, it makes sense if the end cap securing the hood for head impact the backdrop in the hood part in the region of the end position of the pin is substantially parallel to the backdrop in the articulated arm.
    The present invention thus enables the Anstelier. the bonnet in a particularly simple and gentle manner taking into account the locking of the initial position and energy consumption
    If the head stop is in the end position, without loading the activator.
    It is particularly advantageous if the angle between the two scenes in the articulated arm and in the hood part in the second half of the delivery path is lower than in the first half, so that the setting speed of the hood in this area decreases. In this way, the hood is gently braked at the end of the Anstellwegs, vibrations due to abrupt deceleration are avoided.
    According to one embodiment of the invention, a return spring, preferably a gas spring, parallel to the activator hen vorgese and gives the activator after reaching the end position an outflow opening for the automatic outflow of the gas free, so that the hinge reverses automatically after a defined time.
    Preferably, the hinge is an inverted hinge or a four-bar linkage.
    Reference to the accompanying figures, the present invention will be explained in more detail. 1 shows a Vorrich device according to the invention with a Einelenkscharnier in the starting position. Fig. 2 the same in the end position; and FIG. 3 shows a device according to the invention with a four-bar linkage.
    The known construct of Einolenkscharnier (see Figs. 1 and 2) having an articulated arm 1 which is rotatably mounted on the one hinge 3 of the Einelenkscharniers, and which has an additional axis of rotation 6, to which a hood part 2, e.g. a Anschraubblech is hinged, is equipped with two scenes 4, 5 in the articulated arm 1 and in the hood part 2, wherein the scenes 4, 5 are connected by a forehead 7. By Ver push the pin 7 in the scenes 4, 5 employment is possible.
    To understand this, you have to include the hood (not shown) in the considerations. The hood part 2 is rigidly connected to the engine hood (not shown), and the fifth
    Bonnet is locked at its free end (that is, at the end opposite the pivot hinge, in the figures, this would be far to the right of the drawing sheet). To allow lifting of the hood, the lock acts only vertically; in the direction of travel (ie in the figures right / left), the lock is slightly movable. Thus, there is a fixed pivot: the hinge 3; a slightly displaceable in one direction fulcrum: the lock of the hood (right outside of the drawing); and a horizontally and vertically movable pivot point: the pivot axis 6. Thus, a triangle is formed overall (with the vertices " hinge 3 ", " locking the hood " and " pivot 6 "). The angle of the triangle in the region of the axis of rotation 6 can now be changed by the slotted guide: In the initial position it is 180 °, in the end position slightly lower (about 150 °). So that the angle of about 150 ° is possible, the axis of rotation 6 must move upward, whereby at the same time the lock moves slightly horizontally.
    The pin 7 is driven by a pyrotechnic activator 8. Preferably, the link 5 is arranged in the articulated arm 1 straight and in the axial direction to the Ausschubweg of the activator 8, so acting on the activator 8 when pushing out any lateral forces and he must make no rotational movement when setting up. If the scenery 4 in the hood part in the region of the starting point parallel to the slide 5 in the articulated arm 1 or even inclined downwards, a reliable locking of the initial position of the hood is achieved in non-activated position.
    By an approximate parallel guide the gate 4 in the hood part 2 to the gate 5 in the articulated arm 1 in the end position creates a backup of the end position, which is adapted to absorb the forces of head impact.
    By shaping the scenes, the Anstellverhalten can be controlled, in particular, with a flatter spout, the Anstellgeschwindigkeit is reduced in the second half of employment to minimize the engine hood vibrations. 6
    Fig. 3 shows that the device according to the invention can be realized not only in a single-pivot hinge. Here, instead of a joint 3 at two axes of rotation 31, 32 different lengths of link 33, 34 are articulated; whose other ends are hinged to axes of rotation 35, 36 of the hinge base 37. Apart from this other type of mounting of the articulated arm 1, the device according to FIG. 3 is identical to that described above.
    Vienna, October 3, 2011
    权利要求:
    Claims (12)
    [1]
    Dr. Müllner Dipl.-Ing. Katschinka OEG, Patent Attorney's Office ···· * ····· Weihburggasse 9, Postjacji tA- £ lJ) 1 fVIζΐί, Austria Telephone: (+43 (1) 512 24 81 / Fax: Jl) *. 5.1 ^ * 7ß · 8Y. * 1 (· * repatent@aon.at Account (PSK): 1480 708 BLZ 60000 BIC: OPSKATWW IBAN: AT19 6000 0000 0148 07081 480 708 MM / 45342 Hirtenberger Automotive Safety GmbH & Co KG A-2552 Hirtenberg ( 1. An apparatus for hiring a hood, which has a hinge with an articulated arm (1) to which a hood part attachable to the hood (2) by means of an additional pivot axis (6) is articulated, characterized in that the employment by a change in the angle between the articulated arm (1) and hood part (2) by means of a pyrotechnic activator.
    [2]
    2. Apparatus according to claim 1, characterized in that the change of the angle by means of two scenes (4, 5), which are provided in the articulated arm (1) and in the hood part (2) and which are penetrated by a pin (7), which is pyrotechnic drivable by the activator (8).
    [3]
    3. A device according to claim 2, characterized in that the igniter-side attachment of the activator (8) on the articulated arm (1).
    [4]
    4. Apparatus according to claim 2 or 3, characterized in that the link (5) in the articulated arm (1) is rectilinear.
    [5]
    5. Apparatus according to claim 4, characterized in that the link (5) in the articulated arm (1) extends axially to the direction of the piston rod of the activator (8).
    [6]
    6. Device according to one of claims 2-5, characterized in that - to secure the starting position of the hood - the link (4) in the hood part (2) in the region of the initial position 2 of the pin (7) substantially parallel to the slide (5 ) in the articulated arm (1).
    [7]
    7. Device according to one of claims 2-6, characterized in that: - For Endlagenensicherung the hood for the head impact - the scenery (4) in the hood door 1 (2) in the region of the end position of the pin (7) substantially parallel to the backdrop (5) in the articulated arm (1).
    [8]
    8. Device according to one of claims 2-7, characterized in that the angle between the two scenes (4, 5) in the articulated arm (1) and in the hood part (2) in the second half of the delivery path is less than in the first half so that the speed of adjustment of the hood in this area decreases.
    [9]
    9. Device according to one of claims 1-8, characterized in that a return spring is provided parallel to the activator (8) and that the activator (8) releases an outflow opening for the automatic outflow of the gas after reaching the end position, so that the hinge according to defined Time reversed self-tatia.
    [10]
    10. The device according to claim 9, characterized in that the return spring is a gas pressure spring.
    [11]
    11. Device according to one of claims 1 to 10, characterized in that the hinge is designed as a Einelenkscharnier.
    [12]
    12. Device according to one of claims 1 to 10, characterized in that the hinge is ausqebii-det as a four-bar linkage. Vienna, October 3, 2011
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    AT511710B1|2013-02-15|
    DE202012009477U1|2012-11-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1431136A1|2002-12-20|2004-06-23|Pyroalliance|Safety device for raising a vehicle hood in case of collision|
    EP1820703A2|2004-11-17|2007-08-22|Delphi Technologies, Inc.|Mechanism and method for lifting the hood or bonnet of a motor vehicle|
    EP2329997A1|2009-12-04|2011-06-08|Autoliv Development Ab|A safety device|DE202013101518U1|2012-04-18|2013-04-23|Hirtenberger Automotive Safety Gmbh & Co. Kg|Device for hiring a hood|DE102008011722A1|2008-02-28|2009-09-03|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|Engine bonnet hinge for motor vehicle, has piston held at distant position by connection whose detachability absorbs kinetic energy of pedestrian caught in bonnet by braked displacement from distant position into pivoting position|
    DE102008050678B4|2008-10-07|2019-05-09|Bayerische Motoren Werke Aktiengesellschaft|Hinge device for a front flap of a motor vehicle with pedestrian protection device|DE102013017455A1|2013-10-21|2015-04-23|Audi Ag|Adjustment device for lifting the trailing edge of a front flap of a motor vehicle|
    DE102013017451B4|2013-10-21|2019-03-07|Audi Ag|Adjustment device, flap with an adjusting device and associated motor vehicle|
    DE102014013771B4|2014-09-17|2021-01-21|Audi Ag|Adjusting device for lifting the rear edge of a front flap of a motor vehicle|
    DE102017011438A1|2017-12-12|2019-06-13|Carl Freudenberg Kg|Pressure-sensitive frictionless seal design|
    DE102019112919A1|2019-05-16|2020-11-19|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|Adjusting device for adjusting a hood of a vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT14252011A|AT511710B1|2011-10-03|2011-10-03|DEVICE FOR HOLDING A BONNET|AT14252011A| AT511710B1|2011-10-03|2011-10-03|DEVICE FOR HOLDING A BONNET|
    DE201220009477| DE202012009477U1|2011-10-03|2012-10-02|Device for hiring a hood|
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