• 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 invention relates to a variable geometry wheel trim, of the type comprising a disk-shaped hub body for covering a vehicle wheel. The hubcap body comprises at least one embellishment opening (15), and for each opening a pivoting shutter (16) of the opening (15), and an actuator (18) for pivoting the shutter shutter (16) on its hinge axis to open the embellishment of the hubcap (15) when the ambient temperature near the hubcap body increases. The actuator (18), which is made of a shape memory material, is fixed at one of its ends to the hubcap body and at the other end to the shutter flap (16).
    公开号:FR3028211A1
    申请号:FR1460755
    申请日:2014-11-07
    公开日:2016-05-13
    发明作者:Eric Palpacuer；Tom Brelet
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:
    专利说明:

    [0001] VEHICLE WHEEL TRIM WITH VARIABLE GEOMETRY ADJUSTMENT. The present invention relates to a variable-geometry car wheel trim wheel cover, in particular a motor vehicle wheel trim wheel with variable geometry. Variable geometry means the variation of the embellishment surface of the hubcap depending on the ambient temperature in the vicinity or inside the wheel. Aerodynamic hubcaps are known, which have a relatively small perforated surface so as to limit aerodynamic drag. They have the disadvantage of not allowing optimum cooling of the braking members of the vehicle. We also know the so-called "classic" hubcaps, which, on the other hand, have relatively large perforated surfaces allowing good cooling of the brake components. But these conventional hubcaps do not have aerodynamic characteristics favorable to the reduction of aerodynamic drag. EP 0 145 487 B1 discloses a wheel cover, substantially in the form of disc whose ventilation devices are actuated by the temperature variation adjacent to one of the faces of the hubcap. This temperature variation acts on a bimetallic blade type detection means, which sets in motion a means of closing the perforated surface of the hubcap. This technical solution requires additional means for actuating the closure and the opening of the perforated surfaces, which are relatively complex in their design and assembly and are, moreover, weigh down the hubcap. We have already sought to simplify such a hubcap variable openwork surface. Thus, the document DE 10 2011 117 088 A1 discloses a hubcap wheel, in one piece and plastic, which comprises a hubcap body with an opening, a hinged flap on one side of the opening and a d actuation. One end of the actuating element is coupled with the body of the hubcap and the other end of the actuating element is coupled with the flap. The actuating element comprises a bimetallic strip, an elastic element and a temperature-responsive shape-memory alloy shortening element, so as to close the hubcap to optimize the aerodynamics and open the flaps of the hubcap when the brakes warm up to cool the brakes. The flaps pivot relative to the hubcap on a hinge line. The object of the present invention is to provide a variable geometry open-wheel vehicle wheel trim, which has excellent aerodynamic behavior without impact on the thermal brakes. Another object of the present invention is to provide such a hubcap, which allows a significant CO2 gain, due to the optimization of aerodynamic drag. Finally, it is also an object of the present invention to provide such a hubcap, which is simple in design and construction, which is robust, reliable and economical, especially due to the gain in 002. [ To achieve these objects, the present invention relates to a variable geometry open-end wheel trim, of the type comprising a disc-shaped hub body for covering a vehicle wheel. This hubcap body comprises at least one embellishment of hubcap. Each embellishment add-on comprises, on the one hand, a closure flap of said hub cap, which is pivotally mounted on a hinge axis substantially coinciding with the side of the openwork which is closest to the center of the body. and an actuator for pivoting the shutter on its hinge axis to open the hubcap while the ambient temperature near the hubcap increases. This actuator is fixed at one end to the hubcap body and at the other end to the shutter flap. In addition, this actuator is made of a metal shape memory material, so that, under the action of the rise in temperature, it bends and causes the pivoting - and therefore the opening - of the shutter shutter. According to a preferred embodiment of the invention, the shutter is extended by an arm directed towards the center and in the radial direction of the hubcap body, which arm is fixed by its free end on the body hubcap and deforms under the force of the actuator. According to a preferred embodiment of the invention also, the actuator has a substantially quadrangular generally filiform shape. Preferably, the hubcap body is made of plastic, for example polyamide, and the shutter is designed "monobloc" with the hubcap body and made by a single molding operation with said body hubcap. Alternatively, the shutter could be mounted on the hubcap body, by riveting, for example, or by any other equivalent fastening means, known per se. Also preferably, the actuator can be fixed by means of "clipping" on the shutter, and by means of "clipping" also on the hubcap body. According to an advantageous embodiment of the invention, the hubcap body may comprise eight projections of hubcap, equidistant from the center of the hubcap body, and distributed in a constant angular pitch and over 360 ° said body hubcap. Advantageously also, wheel openings are provided on the wheel and the openings of the hubcap body can be arranged angularly between two wheel openings. The present invention also relates to a vehicle, in particular a motor vehicle, which has at least one wheel with a variable geometry wheel trim hub conforming to that described above in outline. Other objects, advantages and features of the invention will appear in the following description of an exemplary embodiment, not limiting the object and scope of the present patent application, accompanied by drawings in which : [0018] - Figure 1 is a schematic perspective view, exploded, of a variable geometry wheel trim wheel cover according to the present invention, associated with a wheel rim of a motor vehicle, at room temperature, [0019] FIG. 2 is a diagrammatic, exploded perspective view of the variable geometry rim and wheel cover, shown in FIG. 2, but at elevated temperature, FIG. 3 is a schematic perspective view showing the inside face of the variable geometry open-wheel wheel cover body of FIG. 1, i.e., at ambient temperature position, FIG. a perspective view, sch showing the inside face of the variable geometry embellishment hub body of FIG. 2, that is to say in the high temperature position, FIG. 5 is a schematic perspective view, enlarged , a closure flap and an actuator for closing / opening said shutter flap on the variable geometry embellishment hub body of Figures 1 and 3, that is to say in position at temperature FIG. 6 is a schematic perspective view, enlarged, of a closure flap and of a closing / opening actuator of said shutter flap on the embellishment body with geometry embellishment. variable of Figures 2 and 4, that is to say in position at high temperature, [0024] - Figure 7 is an enlarged front view of a shutter flap of the hubcap wheel to open at variable geometry according to the present invention, in position at ambient temperature, [0025] FIG. sectional view, along the sectional line designated "8-8" of FIG. 7, of the shutter of FIG. 7, [0026] FIG. 9 is an enlarged front view of a shutter of FIG. shutting off the variable geometry openwork wheel cover according to the present invention in the high temperature position, and [0027] FIG. 10 is a sectional view along the section line designated "10-10" of FIG. FIG. 9 shows the shutter flap of FIG. 9. [0028] Referring to the drawings of FIGS. 1 to 4, an embodiment of the variable geometry wheel trim according to the present invention is shown. The wheel cover or "wheel cap", preferably made of polyamide, comprises a generally disk-shaped hubcap body, designated by the general reference 10, which is placed on the outside of a wheel. vehicle wheel. More specifically, the hubcap body 10 is fixed on the rim of the wheel referenced 20 (Figures 1 and 2) of the vehicle. The reference 10E designates the outer face of the hubcap body 10, that is to say the face turned towards the outside of the vehicle, while the reference 101 designates the inner face of the hubcap body 10, hence the face turned towards the inside of the vehicle. The wheel 20 is provided with wheel projections (Figures 1 and 2), referenced collectively 25, which are distributed over at least one sector of the wheel 20 and equidistant from the center of the latter (axis yy 'of Figure 1). By way of non-limiting example of the object and the scope of the present invention, the hubcap body 10 may be provided with eight embellishment eyelets, referenced collectively 15. These embellishments 15 are equidistant from the center "O" (Figure 3) of the trim body 10, and are distributed in a constant angular pitch "a" (Figure 1) and 360 ° of said trim body10. Each lace trim 15 comprises a shutter 16 of said perforation 15, which shutter 16 is formed, preferably, "monobloc" and by molding with the hubcap body 10. [0033] The shutter flaps 16 are mounted on the inner face 101 of the hubcap body 10. [0034] The reference 19 (FIG. 3) designates circumferential lugs for mounting the wheel hub cap 10 on the wheel 20. [0035] As best shown in FIGS. 5 and 6, each shutter flap 16 is pivotally mounted towards the inside of the wheel on a hinge axis "aa" substantially coinciding with the side of the embellishment opening 15 which is the closer to the center of the hubcap body 10. [0036] Referring also to the drawings of FIGS. 5 and 6, a shutter or "actuator" is intended to rotate the shutter flap 16 on its hinge axis "aa". to open the hubcap ajar 15 (Figure 6) when the temperature am biante near said hubcap body 10 increases. This actuator, of general reference 18, which has a generally quadrangular filamentary shape, is fixed by one of its ends or "side" 18A on the hubcap body 10 and the other end or "side" 18B on the shutter flap 16 (Figure 5). This actuator 18 is made of a metal material or shape memory alloy ("AMF" for Shape Memory Alloy), so that, under the action of the rise in temperature, it folds and causes the pivoting of the shutter 16 to pivot about its hinge axis (FIG. 6). A sample of an AMF alloy, such as for example a nickel-titanium alloy sample (NiTi), or a copper-nickel-aluminum alloy (CuNiAI), or even a copper-nickel-aluminum alloy (CuNiAI), can undergo, at low temperature, an apparently plastic deformation of a few percent and fully recover its initial form of high temperature by simple heating. As illustrated in FIG. 5, at a substantially ambient temperature, the actuator 18 holds the shutter flap 16 in the closed position of the perforation 15. [0041] It will be noted that the end portion 18B of the actuator 18 is fixed by means of "clipping" on the shutter 16, the female element of this "clipping means" forming an integral part of the flap 16 and being designated by the reference 16C. It will be noted that the other end 18A of the actuator 18 is fixed on the hubcap body 10 also by means of "clipping", the double female element of this clipping means forming an integral part of the hubcap body 10 and being designated by references 10A and 10B (Figure 6). In Figure 6, there is shown the AMF actuator, referenced 18, in the high temperature position, following a biasing of the vehicle brakes. In this position at high temperature, the actuator 18 folds and causes the pivoting of the shutter 16, which results in opening the embellishment opening 15 to the cooling air passage. The dotted broken line "rr" represents the theoretical axis of rotation of the actuator 18. [0043] Referring to the drawings of FIGS. 7 to 10, there is shown, in more detail, the shape and the structure of the shutter flap 16. The flap 16 is extended by an arm 16D, which is directed towards the center of the hubcap body 10 and in the radial direction of said body hubcap. This arm 16D is fixed by its free end 16G to the hubcap body 10 and is deformed under the force of the actuator 18. The reference 16M denotes the orifice of the fastening means of said end portion 16G of the shutter 16 and the shape of the arm 16D of the shutter 16 are dimensioned so that said arm 16D deforms under the force of the actuator when the temperature in the vicinity of the wheel increases. When this temperature drops and becomes the ambient temperature again, the stiffness of the arm 16D is predetermined so that it allows the shutter 18 to be returned to the initial position shown in FIG. 5. [0046] The operation of the hubcap Variable geometry open-ended wheel described above is simple. Under the effect of the temperature increase in the vicinity and inside the wheel (during braking, in particular), the actuator 18 "bends", causes the pivoting of the shutter flap 16 and the opening the embellishment of the embellishment 15, as mentioned above, and this opening of the opening 15, partial, then increasing with the temperature rise, provides a passage for the cooling air (illustrated by the arrows "A" of Figure 10) of the braking members. The variable-geometry openwork wheel wheel cover according to the invention, as described above, has numerous advantages, among which the following advantages: [0048] it allows a significant gain in CO2, considering the optimization of the aerodynamic drag, [0049] - it has excellent aerodynamic behavior without impact on the thermal brakes, and [0050] - it constitutes a simple technical solution, and economic, especially because of the gain in 002.
    权利要求:
    Claims (10)
    [0001]
    1. Wheel cover with variable geometry, of the type comprising a disk-shaped hubcap body (10) intended to cover a vehicle wheel, said hubcap body (10) comprising at least one hubcap trim (15), each trim projection (15) being provided with a shutter (16) of said hub cap (15), which is pivotally mounted on a hinge axis substantially coincident with the side of the openwork hubcap (15) which is closest to the center of the hubcap body (10), and an actuator (18) for pivoting said shutter flap (16) on its hinge axis to open the openwork. embellisher (15) when the ambient temperature near said trim body (10) increases, said trim being characterized in that the actuator (18) is fixed by one of its ends (18A) on the trim body ( 10) and the other end (18B) on the shutter flap (16), and in that said actuator (1) 8) is made of a shape memory metal material, so that, under the action of the temperature rise, it bends and causes the shutter flap (16) to pivot and, therefore, the opening of the embellishment of the hubcap (15) for the passage of cooling air.
    [0002]
    2. wheel cover according to claim 1, characterized in that the shutter (16) is extended by an arm (16D) directed towards the center of the hubcap body (10) and in the radial direction of said body. embellisher (10), which arm (16D) is fixed by its free end (16G) on the hubcap body (10) and deforms under the force of the actuator (18).
    [0003]
    3. wheel cover according to any one of claims 1 and 2, characterized in that said actuator (18) has a substantially quadrangular generally filiform shape.
    [0004]
    4. wheel cover according to any one of claims 1 to 3, characterized in that the hubcap body (10) is made of plastic.
    [0005]
    Wheel trim according to claim 4, characterized in that the shutter (18) is "monobloc" with the trim body (10), and made by a single molding operation with said trim body (10).
    [0006]
    6. wheel cover according to any one of claims 1 to 5, characterized in that the actuator (18) is fixed on the shutter flap (16) by means of "clipping" (10A, 10B).
    [0007]
    Wheel trim according to one of Claims 1 to 6, characterized in that the actuator (18) is fixed to the trim body (10) by a "clipping" means (160).
    [0008]
    8. wheel cover according to any one of claims 1 to 7, characterized in that the hubcap body (10) comprises eight projections trim (15) equidistant from the center of the hubcap body (10). ), and distributed in a constant angular step ("a") and on the 3600 of said hubcap body (10).
    [0009]
    Wheel cover according to one of Claims 1 to 8, characterized in that wheel projections (25) are provided on the wheel (20) and in that the perforations (15) of the hubcap body ( 10) are arranged angularly between two wheel projections (25).
    [0010]
    10. Vehicle, in particular a motor vehicle, which has at least one wheel with a wheel cover (10) with variable geometry, characterized in that said wheel cover is in accordance with any one of the preceding claims.
    类似技术:
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    同族专利:
    公开号 | 公开日
    WO2016071595A1|2016-05-12|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0145487A2|1983-12-14|1985-06-19|Kabushiki Kaisha Tokai Rika Denki Seisakusho|Apparatus for covering a disc wheel for motor vehicle|
    JPS61244601A|1985-04-22|1986-10-30|Kazuhiko Ida|Wheel for automobile|
    JPH042502A|1990-04-17|1992-01-07|Toyoda Gosei Co Ltd|Wheel cap|
    JPH0454701U|1990-09-17|1992-05-11|
    EP1319526A2|2001-12-14|2003-06-18|Bayerische Motoren Werke Aktiengesellschaft|Wheel of motor vehicle or rim|
    DE10161868A1|2001-12-14|2003-07-10|Bayerische Motoren Werke Ag|Vehicle wheel has flaps which can be moved across to close gaps between its spokes, allowing appearance of wheel to be changed and brakes to be cooled by air flow|
    KR20080044686A|2006-11-17|2008-05-21|현대자동차주식회사|Wheel for an automobile|
    US20090195053A1|2008-02-06|2009-08-06|Gm Global Technology Operations, Inc.|Rim or wheel add-on part for a motor vehicle wheel having closable openings|
    DE102011117088A1|2011-10-27|2013-05-02|Volkswagen Aktiengesellschaft|Wheel surface element, particularly wheel cover for wheel of passenger car, comprises cover body with opening, cover flap hinged on one side of opening, and actuating element, which has lower curvature between its primary and secondary ends|
    DE102016202483A1|2016-02-18|2017-08-24|Continental Teves Ag & Co. Ohg|Motor vehicle wheel cover with adjusting device for a closure element for the electroless automated metered cooling air supply of a motor vehicle wheel brake|
    FR3052102B1|2016-06-02|2019-07-26|Novares France|WHEEL ELEMENT OF A VEHICLE|
    FR3078286A1|2018-02-28|2019-08-30|Psa Automobiles Sa|ACTIVE WHEEL TRIM|
    CN111815213A|2019-04-12|2020-10-23|株式会社日立制作所|Distribution plan generating device, system, method and computer readable storage medium|
    FR3100480B1|2019-09-05|2021-08-06|Psa Automobiles Sa|VEHICLE WHEEL WITH MODIFICATION OF AIR CIRCULATION BEYOND A PREDEFINED THRESHOLD TEMPERATURE|
    FR3105094B1|2019-12-19|2021-12-17|Psa Automobiles Sa|MOTOR VEHICLE WHEEL TRIM CONTAINING MOBILE VENTILATION SHUTTERS|
    法律状态:
    2015-10-23| PLFP| Fee payment|Year of fee payment: 2 |
    2016-05-13| PLSC| Publication of the preliminary search report|Effective date: 20160513 |
    2016-10-24| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-20| 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 |
    2018-10-24| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-22| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-20| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1460755A|FR3028211B1|2014-11-07|2014-11-07|VEHICLE WHEEL TRIM WITH VARIABLE GEOMETRY ADJUSTMENT|
    FR1460755|2014-11-07|FR1460755A| FR3028211B1|2014-11-07|2014-11-07|VEHICLE WHEEL TRIM WITH VARIABLE GEOMETRY ADJUSTMENT|
    PCT/FR2015/052696| WO2016071595A1|2014-11-07|2015-10-07|Vehicle-wheel hubcap with variable-geometry cutout|
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