• 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:
    An anchoring device (DA) equips an aluminum cradle (BA), comprising a cross member (TB) extending in a transverse direction, and equipping a vehicle. This device (DA) comprises a first part (P1) extruded in the transverse direction and comprising a first anchoring point (PA1) in a longitudinal direction, for anchoring a vehicle equipment, and a second piece (P2 ) extruded in the longitudinal direction and comprising a lower portion (PI2) fixedly secured by welding to one end of the cross member (TB) and to which the first piece (P1) is fixedly secured by welding, and an upper part (PS2) , having an end portion extending the end of the cross member (TB) offset along the longitudinal and vertical directions and including a second anchor point (PA2) in the vertical direction, for anchoring the cradle (BA) to a structural part of the vehicle.
    公开号:FR3037305A1
    申请号:FR1555349
    申请日:2015-06-12
    公开日:2016-12-16
    发明作者:Bruno Cadet
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] The invention relates to aluminum cradles, manufactured by extrusion (or spinning), machining and welding (or shoeing), and intended to equip certain vehicles, possibly with a view to the invention. automotive type. As illustrated in FIG. 1, some BA aluminum cradles comprise an extruded and machined TB cross member and to which are secured two extensions (or longitudinal members) PB which are also extruded and machined. These PB extensions allow rear attachment to the body of a vehicle. The front anchorage of this type of cradle BA on the body of a vehicle is via DA anchoring devices, right and left, sometimes called "horns", and fixedly secured to the crossbar TB. Specifically, each DA anchor is generally extruded in the transverse Y direction of the vehicle and includes lower PI and upper PS portions extending mutually. The lower portion PI is fixedly secured to one of the two ends of the crossbar TB via welding beads and comprises holes defining a first longitudinal anchoring point PA1 (generally called El) and intended to be traversed by a screw coupled with equipment (usually a wheel triangle). The upper part PS comprises holes defining a second vertical anchor point PA2 (generally called X2) and intended to be traversed by a screw coupled to yet another part of the body.
    [0002] In FIG. 1, as in the other figures, the direction X is the longitudinal direction of the vehicle, which is substantially parallel to the lateral sides comprising the side doors, the Y direction is the transverse direction of the vehicle, which is perpendicular to the direction X, and the direction Z is the vertical direction of the vehicle, which is perpendicular to the longitudinal X and transverse Y directions. The method of manufacture of the anchoring devices (or horns) DA described above has several disadvantages. Indeed, it induces 3037305 2 important losses of material during the machining of each DA horn to allow the placement of at least one equipment in their immediate environment, and requires a complex extrusion die (or spinning) that very few companies are able to manufacture, which leads to high manufacturing costs. In addition, it is difficult to define under the left horn an indexing zone (or reading) for the measurement of the final attitude of the cradle BA due to the implantation of the weld seams, and the duration of the machining phase is important. Finally, the connection between the crossbar TB and each horn DA is done only by weld beads in the vertical direction Z, and therefore these weld beads are highly stressed in fatigue, and the second vertical anchoring point PA2 ( or X2) undergoes, in the event of impact before, forces which are substantially perpendicular to the direction of the extrusion (or spinning - following Y), which is not optimal. The invention is therefore particularly intended to improve the situation.
    [0003] It proposes for this purpose a device, dedicated to the anchoring of an aluminum cradle, intended to equip a vehicle and comprising a cross member extending in a so-called transverse direction, and comprising: a first extruded part according to the direction transverse and comprising holes defining a first anchoring point in a longitudinal direction perpendicular to the transverse direction, for anchoring (or fixing) a vehicle equipment, and - a second part extruded in the longitudinal direction and comprising a lower portion, adapted to be fixedly secured by welding to one end of the cross-member and to which the first piece is secured by welding, and an upper part, having an end portion intended to extend the end of the cross-member; offset in the longitudinal direction and a vertical direction perpendicular to the long directions 11 and transverse and having holes defining a second anchoring point in the vertical direction, for anchoring the cradle to a structural part of the vehicle. Thanks to the extrusions of the two parts respectively in the transverse and longitudinal directions, the anchoring device can better withstand the longitudinal forces in the event of an impact at the front of the vehicle, while supporting at least as well the transverse forces in case side impact on one longitudinal side of the vehicle. The anchoring device according to the invention may comprise other features which may be taken separately or in combination, and in particular: the lower part of the second part may have a general L shape in order to be partially housed under a protuberance of the end of the cross, and the upper part of the second piece may have 1 o a rounded shape (eg substantially in a circular arc); its first part and / or its second part can also be machined so as to allow a reduction in mass and a placement of at least one equipment of the vehicle; its first part may comprise an upper wing extending a lower part, in which the first anchoring point is defined, and to which is welded the upper part of the second part; it may comprise a third part fixedly secured by welding to a lateral end of the first piece in the extension of the lower part of the second piece and adapted to be fixedly secured by welding at the end of the cross member, so as to reinforce the shock anchor device at the front of the vehicle; the third piece may have a U-shaped cross section; the first part may comprise a lower face including an indexing zone intended to allow the realization of a measurement 25 of attitude of the cradle; the first piece may comprise a lower flange extending a lower portion substantially in a plane defined by the transverse and longitudinal directions and in which are defined fixing holes intended to allow fastening by screwing in the vertical direction of a vehicle equipment . The invention also proposes an aluminum cradle intended to equip a vehicle and comprising a cross member extending in a so-called transverse direction and two anchoring devices of the type of those presented above. The invention also proposes a vehicle, possibly of automobile type, and comprising a cradle of the type of that presented above.
    [0004] Other features and advantages of the invention will become apparent upon consideration of the following detailed description, and the accompanying drawings (obtained in CAD / CAM (Computer Aided Design / Computer Aided Drawing), where the apparently discontinuous character of certain lines), in which: FIG. 1 schematically illustrates, in a perspective view, an example of a cradle of the prior art, FIGS. 2 to 4 schematically illustrate, in different perspective views, a part of an example of a cradle equipped with an exemplary embodiment of an anchoring device according to the invention, and FIG. 5 schematically illustrates, in perspective views, the elements constituting the device for anchoring the figures. 2 to 4, before (left) and after (right) the machining phase, and before assembly. The invention is particularly intended to provide a DA device for allowing the anchoring of a BA aluminum cradle in a vehicle. In what follows, it is considered, by way of non-limiting example, that the vehicle is automotive type. This is, for example, a car. But the invention is not limited to this type of vehicle. It concerns indeed any type of vehicle comprising an aluminum cradle intended to be part of a front train assembly and to participate in equipment support, such as, for example, steering, anti-roll bar, wheel triangles, wheel assemblies by the anti-roll bar and anti-roll rod attachment, exhaust support members, or the sound-proof housing. As indicated in the introduction with reference to Figure 1, a BA aluminum cradle comprises an extruded and machined TB crossbar and which are secured two extensions (or beams) PB also extruded and machined (e) s. The anchoring of the crossbar TB to the chassis (or box) 3037305 5 of a vehicle is done via two anchoring devices DA, right and left, fixedly secured to its two opposite ends, and by the two extensions PB. FIGS. 2 to 4 show diagrammatically a part 5 of an exemplary cradle BA comprising a crossbar TB having an end equipped with an exemplary embodiment of an anchoring device DA according to the invention. It is more precisely, here, a right DA anchoring device secured to the right end of the crossbar TB. A left anchor device would have an extension in the transverse direction Y 1 o less than that of the right DA anchor device which is illustrated. As illustrated without limitation in FIGS. 2 to 5, an anchoring device DA according to the invention comprises at least first P1 and second P2 aluminum parts. The first piece P1 is extruded in the transverse direction Y and comprises holes which define a first anchoring point PA1 (generally called E1), in the longitudinal direction X (which is perpendicular to the transverse direction Y), intended to allow the anchoring (or fixing) of equipment (such as for example a wheel triangle) at one end of the crossbar TB of the cradle BA.
    [0005] This first piece (or screed) P1 comprises a main part P1, hereinafter called lower, having a shape of rectangular parallelepiped profile. This lower portion P1 comprises two walls (front and rear) substantially contained in planes defined from transverse directions Y and vertical Z, and in which are respectively defined the holes (here two in number) which define the first point d anchoring PA1. These holes are intended to be traversed by a screw or a bolt which ensures the attachment of equipment (for example a triangle) and which is itself (itself) secured to one end of an elongate the opposite end is secured to a structural part of the vehicle, such as for example the body. It is recalled that the elongate is intended to absorb frontal shocks by deformation. In what follows and what precedes the notions of "before" and "back" are relative to the front end of the vehicle. Therefore, a front member is oriented towards the front end of the vehicle, while a rear member is facing the rear end of the vehicle. The front wall of the lower part Pli being substantially contained in a plane YZ, it advantageously plays the role of a "counter-impactor" 5 for the recovery of longitudinal forces (related to the displacement of the motor, on which is fixed an impactor ) in the event of a front (or frontal) impact. The lower portion P1 also comprises two walls (lower and upper) contained substantially in planes defined from transverse directions Y and longitudinal X. As illustrated, the bottom wall 1 o may comprise a TE hole allowing the passage of a screw or a bolt for attaching equipment, such as the screen under engine (or ESM) responsible for soundproofing the engine. The second piece P2 is extruded in the longitudinal direction X and comprises lower portions PI2 and upper PS2 mutually extending. The lower part PI2 is adapted to be fixedly secured by welding at one end of the crossbar TB and is fixedly secured by welding to the first piece Pi. The upper portion PS2 has an end portion which is intended to extend the end of the crosspiece. TB staggered along at least the longitudinal X and vertical Z directions.
    [0006] Furthermore, this upper part PS2 has holes which define a second anchoring point PA2 (generally called X2), in the vertical direction Z, intended to allow anchoring of the end of the crossbar TB of the cradle BA to a structural part of the vehicle (usually the chassis (or crate).
    [0007] For example, and as shown in non-limiting manner in FIG. 5, the lower part PI2 of the second piece P2 may have a generally L shape so as to be partially housed under a protrusion PRT of the end of the crossbar TB which protrudes towards the front of the vehicle, and the upper part PS2 of the second piece P2 may have a rounded shape, for example in an arc. Also for example, and as illustrated in non-limiting manner in FIGS. 2 and 5, the lower part PI2 of the second piece P2 can comprise on a front face a recess DE produced by machining and 3037305 7 intended to allow the passage of a clean nut. to cooperate with the threaded end of the screw or bolt to ensure the joining of equipment (for example a wheel triangle) via the first anchor PA1 (or El). Note that the end portion of the upper portion PS2 of the second piece P2 extends the end of the cross member TB forwardly offset in the longitudinal direction X because the protrusion PRT is defined on the front side of the crosswise TB, and shifted upwardly in the vertical direction Z. It will also be noted that in the example shown without limitation the end portion of the upper portion PS2 of the 1 o second piece P2 extends the end of the crossbar TB shifted (here to the right) in the transverse direction Y because the lower portion PI2 of the second piece P2 is welded to the end portion of the end (here right) of the crossbar TB. Some CS welding seams ensuring at least partially the fixed securing of the second piece P2 to the crosspiece TB or to the first piece P1 are shown in FIGS. 3 and 4. It will also be noted that the lower part PI2 of the second piece P2 may comprise holes TF 'allowing the passage of a screw or a bolt for the attachment of equipment, such as for example a bar 20 anti-roll. As can be seen in FIG. 5, it is advantageous for the first piece P1 and / or the second piece P2 to be machined so as to allow a reduction in mass and placement of at least one piece of equipment. the vehicle in their immediate environment, such as an anti-roll bar and possibly a part of the engine and / or the transmission. Note that in the example shown nonlimitingly in Figure 5, the first piece P1 and the second piece P2 are machined. But only one of them could be machined, or both could not be machined.
    [0008] Thanks to these two pieces P1 and P2 which are extruded (or spun) respectively in the transverse directions Y and longitudinal X, the anchoring device DA can better withstand the longitudinal forces in the event of an impact at the front of the vehicle, while supporting at least as well the transverse forces in the event of side impact on a longitudinal side of the vehicle. In addition, this advantageously makes it possible to lose significantly less material than with an anchoring device (or horn) monoblock of the prior art, during the machining phase.
    [0009] As illustrated without limitation in FIGS. 2 to 5, the first piece P1 may advantageously comprise an upper wing PS1 extending its lower part P11 (in which the first anchoring point PA1 is defined) and to which is welded the upper part PS2. of the second piece P2. This upper wing PS1 serves as a stiffener in the vertical direction Z, and moreover facilitates the realization of the weld seams CS. Note that in the example shown non-limitatively in Figure 5, it is mainly the upper wing PS1 which is machined (and more precisely cut at an angle to allow the placement of equipment). Also as illustrated in non-limiting manner in FIGS. 3 and 5, the anchoring device DA may optionally comprise a third part P3 secured by welding to a lateral end of the first part P1 in the extension of the lower part PI2 of the second part. P2 piece and clean to be secured by welding at the end of the crossbar TB. As this third piece P3 is at least partly contained in an XY plane, it advantageously plays the role of a counter-impactor reinforcement for the recovery of longitudinal forces in the event of an impact at the front of the vehicle. In other words, it reinforces the DA anchoring device vis-à-vis the front shocks. For example, and as illustrated in non-limiting manner in FIG. 5, the third piece P3 may have a U-shaped cross section. It will also be noted that the lower portion P1 of the first piece P1 may comprise on its bottom wall a lower face. comprising a flat indexing zone ZI and intended to advantageously allow the realization of a measurement of attitude of the cradle BA. This possibility results from the fact that, unlike a one-piece anchoring device of the prior art, the lower wall of the lower part P1 is less constrained for the positions of the weld beads CS, which makes it possible to shift them. out of the indexing (or reading) zone ZI.
    [0010] It will also be noted that the lower portion P1 of the first piece P-1 may be extended forwards by a lower flange A1 substantially defined in the XY plane and in which TF fixing holes are defined for fixing purposes. by screwing in the vertical direction Z 5 of an equipment, such as an extension. The invention offers several advantages, among which: a significant reduction in the loss of material during the machining phase, a simplification of the machining phase, a simplification of the extrusion matrices which considerably enlarges the number of companies able to manufacture them, the possibility of easily defining an indexing (or reading) zone for the measurement of the final base, without having to adapt the existing measuring means, - an improvement of the holding in fatigue and during shocks before. 15
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Anchoring device (DA) for an aluminum cradle (BA), comprising a cross member (TB) extending in a transverse direction and intended to equip a vehicle, characterized in that it comprises i) a first part (P1) extruded in said transverse direction and comprising holes defining a first anchor point (PA1) in a longitudinal direction perpendicular to said transverse direction 1o, for anchoring an equipment of said vehicle, and ii) a second piece (P2) extruded in said longitudinal direction and comprising a lower portion (PI2), adapted to be fixedly secured by welding at one end of said crossbar (TB) and to which is fixedly secured by welding said first piece (P1), and an upper portion (PS2) having an end portion for extending said end of the cross member (TB) offset in said longitudinal direction and a vertical direction perpendicular to said longitudinal and transverse directions and having holes defining a second anchor point (PA2) in said vertical direction, for anchoring said cradle (BA) to a structural part of said vehicle.
    [0002]
    2. Device according to claim 1, characterized in that said lower portion (PI2) of the second piece (P2) has a generally L-shaped to be partially housed under a protuberance (PRT) of said end of the crosspiece ( TB), and said upper portion (PS2) of the second piece (P2) has a rounded shape.
    [0003]
    3. Device according to one of claims 1 and 2, characterized in that said first piece (P1) and / or said second piece (P2) is / are also machined (s) to allow a reduction in mass and a placing at least one equipment of said vehicle. 30
    [0004]
    4. Device according to one of claims 1 to 3, characterized in that said first piece (P1) comprises an upper wing (PS1) extending a lower portion (Ply), wherein is defined said first anchor point (PA1 ), and to which is welded said upper portion (PS2) of the second piece (P2).
    [0005]
    5. Device according to one of claims 1 to 4, characterized in that it comprises a third piece (P3) firmly fixed by welding to a lateral end of said first piece (P1) in the extension of said lower part ( PI2) of the second piece (P2) and adapted to be fixedly secured by welding at said end of the crossbar (TB), so as to reinforce said device (DA) in case of impact in front of said vehicle.
    [0006]
    6. Device according to claim 5, characterized in that said third piece (P3) has a U-shaped cross section.
    [0007]
    7. Device according to one of claims 1 to 6, characterized in that said first piece (P1) comprises a lower face having an indexing zone (ZI) for enabling the realization of a measurement of said cradle (BA). 15
    [0008]
    8. Device according to one of claims 1 to 7, characterized in that said first piece (P1) comprises a lower flange (AI) extending a lower portion (P1) substantially in a plane defined by said transverse directions and longitudinal and in which fixing holes (TF) are defined to allow screw fastening in said vertical direction of an equipment of said vehicle.
    [0009]
    9. cradle (BA) aluminum, comprising a cross member (TB) extending in a transverse direction, and intended to equip a vehicle, characterized in that it comprises two anchoring devices (DA) according to one of the preceding claims. 25
    [0010]
    10. Vehicle, characterized in that it comprises a cradle (BA) according to claim 9.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3037305B1|2017-07-07|
    引用文献:
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    法律状态:
    2016-05-24| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-16| PLSC| Search report ready|Effective date: 20161216 |
    2017-05-23| PLFP| Fee payment|Year of fee payment: 3 |
    2018-05-25| PLFP| Fee payment|Year of fee payment: 4 |
    2018-06-29| CA| Change of address|Effective date: 20180312 |
    2018-06-29| CD| Change of name or company name|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
    2019-05-22| PLFP| Fee payment|Year of fee payment: 5 |
    2021-03-12| ST| Notification of lapse|Effective date: 20210205 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1555349A|FR3037305B1|2015-06-12|2015-06-12|MULTI-PIECE ANCHORING DEVICE FOR A MOTOR VEHICLE ALUMINUM CRADLE TRAVERSE|FR1555349A| FR3037305B1|2015-06-12|2015-06-12|MULTI-PIECE ANCHORING DEVICE FOR A MOTOR VEHICLE ALUMINUM CRADLE TRAVERSE|
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