• 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:
    The present invention relates to a suspension arm (1) of an automobile wheel intended to connect a wheel hub, at point E, to two articulations of the structure of a vehicle, at points A and B, said arm of suspension (1) comprising a core (10) and a reinforcement (3) fixed on the core (10) by connecting means (2, 4), it is characterized in that a part of the connecting means are fusible (4). It is thus possible to define the effort that will yield the fusible links (4), their location and the same areas of deformation preferred.
    公开号:FR3041569A1
    申请号:FR1559239
    申请日:2015-09-30
    公开日:2017-03-31
    发明作者:Yoann Saudemont
    申请人:Renault SAS；
    IPC主号:
    专利说明:

    LOWER ARM WITH FUSE REINFORCEMENT
    The present invention relates to an automobile suspension arm which makes it possible to connect the structure of the vehicle to the wheel. This arm is sometimes made of two parts: a core generally stamped or folded sheet and a reinforcement fixed on this sheet. The reinforcement serves to reinforce the main sheet during frontal and lateral impacts.
    When side impacts (perpendicular to the direction of movement of the vehicle) or longitudinal (in the direction of movement of the vehicle) on the wheel, the arm deforms differently and at different efforts. The deformation is generally done with a greater effort in lateral shock than in longitudinal shock and the location of this deformation is not controlled. The object of the present invention is to provide an arm where, at the same time, the deformation force is similar in frontal and lateral impact, and where the deformation is controlled.
    The automobile suspension arm according to the invention is intended to connect a cradle roll of a vehicle by two joints, said arm comprising a core and a reinforcement fixed to the core by connecting means, it is characterized in that that part of the connecting means are fusible. It is thus possible to define the effort that will give up the fuse links, and to program the deformation of the part by the location of the different links and the shape of the sheets. This solution makes it possible on the one hand not to use forged arms, and secondly to standardize, during the development, the lateral and longitudinal shocks by choosing the appropriate breaking force.
    Advantageously, the core has a deformation zone. The deformation zone will preferably be located opposite the reinforcement and between the fusible and fixed links, so that the reinforcement guarantees the holding of the part as long as the fusible links remain intact, and that the part deforms when the fusible links failed.
    Advantageously, the wheel ball has a center E and the deformation zone represents approximately a quarter of the distance between the center E and the nearest joint. This gives a sufficient amplitude of deformation. The rupture occurs halfway between the points A, B and the center E, thus avoiding the risk of uncapping of the patella at the center E.
    Advantageously, the fusible links are arranged near the wheel spherical joint. During the shock, the most important effort will come from the wheel, the fuses will yield more easily.
    Advantageously, the other links are arranged near at least one of the two joints. The zone comprising the articulations of the arm fixed to the structure of the vehicle is thus saved. Other links may be soldering points.
    Advantageously, the fuse links are 2 or more. Optimally, four fusible links can be used.
    According to a particular characteristic, the other non-fusible links are 3 or more. Depending on the size of the non-fusible links, it will be possible to use 5.
    According to a first variant, the deformation zone has at least one corrugation. This corrugation makes it possible to direct the deformation of the core, it is preferably arranged perpendicular to it.
    According to a second variant, the deformation zone is perforated. The perforation will weaken the soul and thus promote the deformation of it.
    According to a third variant, the deformation zone is narrower than the rest of the core. By reducing the width of the deformation zone we will promote its deformation and thus make this zone weaker. The invention also relates to a vehicle equipped with a suspension arm with at least one of the preceding features. Other advantages may still be apparent to those skilled in the art on reading the examples below, illustrated by the appended figures given by way of example: FIG. 1 is an exploded view of the arm according to the invention, - Figure 2 is a top view of the arm according 1'invention, - Figure 3 is a perspective view of an arm according to the invention after an impact.
    The arm 1 illustrated in FIG. 1 comprises a core 10 and a reinforcement 3. The reinforcement 3 has two fallen edges 30a and 30b disposed on either side, and which are intended to surround the core 10 of the arm 1 and to stiffen it . The reinforcement 3 is connected to the arm of the arm by welding points 2 and fusible links 4. The arm 1 is connected by two joints at points A and B, preferably made of rubber to the vehicle structure, and by a ball joint from center E to the wheel. It can be seen in FIG. 2 that the non-fusible connection means consist of soldering points 2 (non-fusible) disposed near the point A in the part of the reinforcement 3 furthest from the patella. The fusible link means 4 are placed near the ball in the part of the reinforcement closest to said ball joint. The deformation zone 11 constitutes a part of the core 10, it corresponds to a thinned zone (in width or in thickness), here it has no dropped edges 100 unlike the other edges of the arm 1 and has a Ripple 110. The deformation zone 11 may also include holes or several corrugations. This zone 11 is placed between the welding points 2 and the fusible links 4.
    Optimally the deformation zone 11 corresponds to a quarter of the distance between the center E of the ball and the axis AB.
    We will now describe what happens during a side impact on the wheel. The ball of the wheel will sink into the arm to the points A and B, from a given force the fusible links 4 will yield releasing the core 10 of the reinforcement 3, the deformation zone 11 will deform by folding or amplifying the corrugation 110, leaving the remainder of the arm disposed after the weld points 2 intact, that is to say without deformation, as can be seen in FIG.
    It is thus possible to control the force required for the deformation of the arm 1 in the side impact so that it is similar to that of the deformation of the arm 1 in frontal impact.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. A suspension arm (1) for a wheel for connecting a wheel spherical to the cradle of a vehicle by two joints of the structure, at points A and B, said arm (1) comprising a core (10) and a reinforcement (3) fixed on the core (10) by connecting means (2, 4), characterized in that part of the connecting means are fusible (4).
    [2" id="c-fr-0002]
    2. Suspension arm (1) according to the preceding claim characterized in that the core (10) has a deformation zone (11).
    [3" id="c-fr-0003]
    3. suspension arm (1) according to the preceding claim characterized in that the wheel spherical has a center E and the deformation zone (11) is about a quarter of the distance between the center E and the hinge most close.
    [4" id="c-fr-0004]
    4. Suspension arm (1) according to one of the preceding claims characterized in that the fuse links (4) are arranged near the wheel spherical.
    [5" id="c-fr-0005]
    5. The suspension arm (1) according to one of the preceding claims characterized in that the other non-fusible links (2) are arranged near at least one of the two joints.
    [6" id="c-fr-0006]
    6. Suspension arm (1) according to one of the preceding claims characterized in that the fuse links (4) are 2 in number or more.
    [7" id="c-fr-0007]
    7. Suspension arm (1) according to one of the preceding claims characterized in that the other non-fuse links (2) are 3 or more.
    [8" id="c-fr-0008]
    8. Suspension arm (1) according to one of claims 2 to 7, characterized in that the deformation zone (11) has at least one corrugation (110).
    [9" id="c-fr-0009]
    9. Suspension arm (1) according to one of claims 2 to 8, characterized in that the deformation zone (11) is perforated.
    [10" id="c-fr-0010]
    10. Vehicle equipped with a suspension arm (1) according to one of the preceding claims.
    类似技术:
    公开号 | 公开日 | 专利标题
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    EP3427981B1|2020-09-09|Automotive vehicle rear train comprising means for absorbing the energy of a rear impact
    EP1757474B1|2010-03-03|Twist beam suspension
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    JP5193002B2|2013-05-08|Suspension arm fastening structure
    EP3736184A1|2020-11-11|Vehicle provided with a device for protecting the legs of the driver
    WO2007042707A1|2007-04-19|Motor vehicle front structure adapted to prevent intrusion of a wheel into the passenger compartment in case of frontal impact
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    EP0392891B1|1994-05-04|Vehicle suspension system
    KR102101653B1|2020-04-17|Rear lower arm
    JPH08132834A|1996-05-28|Connecting rod
    FR3101600A1|2021-04-09|Side impact absorber for motor vehicle
    EP1066994B1|2003-05-21|Rear suspension of a motor vehicle
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    EP3962760A1|2022-03-09|Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing
    同族专利:
    公开号 | 公开日
    FR3041569B1|2017-10-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2000071734A|1998-09-02|2000-03-07|Mazda Motor Corp|Vehicle suspension support structure|
    WO2003101767A1|2002-05-31|2003-12-11|Magna International Inc.|Hydroformed control arm|
    DE102004015048A1|2004-03-26|2005-10-13|Bayerische Motoren Werke Ag|Attachment of bearing holder for bearing of wheel positioning linkage of motor vehicle has releasing attachment in form of frictional threaded connection with essentially vertical longitudinal axis|
    WO2014016519A1|2012-07-26|2014-01-30|Saint Jean Industries|Suspension arm for motor vehicle and method of manufacture thereof|
    WO2015086962A1|2013-12-12|2015-06-18|Renault S.A.S.|Suspension arm for a motor vehicle|WO2020221974A1|2019-04-30|2020-11-05|Psa Automobiles Sa|Vehicle wheel wishbone, with articulation push-fitted onto a fixing rod via a bushing|
    FR3095614A1|2019-04-30|2020-11-06|Psa Automobiles Sa|VEHICLE WHEEL TRIANGLE, WITH ARTICULATIONS FITTED ON A FIXING ROD HOUSED IN A HOUSING|
    FR3107881A1|2020-03-03|2021-09-10|Renault S.A.S.|Device for protecting a vehicle against shocks, in particular applied to the front axle of the vehicle.|
    法律状态:
    2016-09-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-31| PLSC| Search report ready|Effective date: 20170331 |
    2017-09-28| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-24| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-26| PLFP| Fee payment|Year of fee payment: 5 |
    2020-09-14| PLFP| Fee payment|Year of fee payment: 6 |
    2021-09-21| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1559239A|FR3041569B1|2015-09-30|2015-09-30|LOWER ARM WITH FUSE REINFORCEMENT|FR1559239A| FR3041569B1|2015-09-30|2015-09-30|LOWER ARM WITH FUSE REINFORCEMENT|
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