Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D59/00—Trailers with driven ground wheels or the like
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
  • B62D25/08—Front or rear portions
  • B62D25/16—Mud-guards or wings; Wheel cover panels
  • B62D25/168—Mud guards for utility vehicles
• • 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
  • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

Definitions

• TITLE IMPROVED FRONT WING SUPPORT FOR A PEDESTRIAN SHOCK
• the invention relates to the field of motor vehicles, more particularly to the front structure of a motor vehicle.
• a shock between a pedestrian and a vehicle occurs mainly between the legs of the pedestrian and the bumper and between the head of said pedestrian and the hood and / or the upper part of the wing of the vehicle, depending on the lateral position of the pedestrian at the time of the impact.
• the addition of shock absorbing supports and / or shock absorbers under the front fenders of the vehicle was therefore necessary in order to reduce the effects of the impact on the pedestrian.
• EP 2 296 958 A1 discloses a shock absorber support for a front fender of a motor vehicle.
• This support includes two interfaces, upper and lower, connected to a middle absorption zone.
• This absorption zone includes V-shaped connection elements, which have the capacity to crash during a pedestrian impact located at the front of the vehicle. But the support is made up of many connection elements making it complex, time consuming to manufacture and install on the vehicle.
• the aim of the invention is to overcome at least one of the drawbacks of the above-mentioned state of the art. More particularly, the invention aims to simplify the existing supports and to facilitate the replacement of the support after an impact.
• the subject of the invention is a support for an upper lateral edge of a front wing of a motor vehicle, the support comprising: a first interface for fixing to the front wing; a second interface for fixing to a wheel arch lining; an absorption zone connecting the first and second interfaces, able to deform in compression in the event of an impact from the head of a pedestrian on the edge of the wing; remarkable in that the absorption zone and the first and second interfaces are formed by a corrugated tape, each of said interfaces comprising several distinct fixing zones.
• the ribbon forms a structurally unique piece, in one piece.
• the fixing zones are formed by vertices of the undulations of the ribbon.
• each of the vertices of the undulations of the ribbon is extended longitudinally so as to form two distinct attachment zones of the first interface.
• each of the attachment zones of the first attachment interface comprises an orifice and a nut secured to the tape.
• each of the attachment zones of the second attachment interface comprises an orifice auxiliary to said zone offset laterally with respect to a median longitudinal axis of the ribbon.
• each of the auxiliary orifices has a diameter of less than 5mm.
• these orifices are intended to allow attachment of a replacement support after a pedestrian impact.
• the support further comprises, at one end, a third interface for attachment to a projector.
• the third interface is directly adjacent to a zone for fixing the first interface.
• the ribbon has longitudinal stiffening ribs on folds of said ribbon between the first and second interfaces.
• the attachment zones of the second interface comprise two zones on one of the vertices of the undulations of the ribbon, said vertex being extended longitudinally with a projection between said zones.
• the invention also relates to a motor vehicle comprising at the front and on each side: a front headlight; a wheel arch liner; a front fender adjacent to the wheel arch liner; and a support connecting the lining of wheel arch at an upper lateral edge of the front fender; remarkable in that the support is according to the invention, and the front projector is fixed to said support.
• the projector is fixed to a front end of the support, more advantageously to a third interface of the support, directly adjacent to a zone for fixing the first interface.
• the measures of the invention are advantageous in that they make it possible to reduce the number of parts required during assembly of the front structure of the vehicle, and also to reduce the number of electrical welding spots for maintaining the structure.
• the invention makes it possible to reduce the total mass of the vehicle, and to reduce the manufacturing costs of the vehicle itself and of the tools necessary for its manufacture.
• the support allows a triple attachment with the projector located at the front, the front fender positioned laterally to the support and the wheel arch lining located under the support.
• the support being formed by corrugations, this improves the flexibility of the front fender of the vehicle, thus limiting the damage caused to the pedestrian during an impact at the front.
• the support also has an advantage after the sale of the vehicle, since the presence of the auxiliary holes makes it easier to change it following an impact at the front. Indeed, these holes serve as a guide for drilling holes in the wheel arch lining, in order to fix a new support by rivets in the holes in question. Finally, the support does not consist of a large number of different parts and therefore the labor time when replacing the support is low. The change of the part is therefore facilitated.
• FIG. 1 is a perspective view of a motor vehicle according to the invention.
• FIG. 2 is a perspective view of a support according to the invention.
• FIG. 3 is a perspective view of the support of FIG. 2, mounted on the front structure of the vehicle
• - [Fig. 4] is a sectional view of the attachment zone between the projector and the support;
• FIG. 5 is a sectional view of the support of Figures 2 to 4 mounted on the lining of the wheel arch.
• FIG 1 shows a perspective view of a motor vehicle according to the invention.
• the motor vehicle 1 comprises, at the front and on each side, a wheel arch lining 3 adjacent to a front fender 5.
• a headlight 7 improving the visibility of the driver.
• An improvement is therefore necessary at the level of the front wing 5 in order to absorb the shocks, and thus to limit the damage caused to the head of the pedestrian.
• This improvement appears in the form of a support as described in FIGS. 2 to 4.
• the longitudinal direction (axis x) is further defined, corresponding in FIG. 1 to the direction of movement of the vehicle 1, then in the following figures to a median longitudinal axis at the support.
• FIG. 2 shows a view of the front fender support according to the invention.
• the support 13 takes the form of a corrugated ribbon 15, which preferably has two corrugations 17 separated by a middle portion 31.
• Each corrugation 17 comprises a front branch 19 and a rear branch 21, joined together by an apex 23.
• the apex 23 of each corrugation 17 of the strip 15 is extended longitudinally to form fixing zones 23B, each comprising an orifice 23C.
• the middle portion 31 of the corrugated ribbon 15 comprises two branches (31 A, 31 B) which are plane and parallel to each other, connected by an oblique branch 31 C.
• the first branch 31 A is situated at a higher height relative to the second branch 31 B.
• the corrugated tape 15 further comprises folds 29, positioned at each connection of the different portions of the tape 15, certain folds 29 further having a longitudinal stiffening rib 29A.
• the corrugated tape 15 forming the support 13 also has several distinct fixing zones (23B, 25).
• the ends of the front branch 19 of the corrugation 17 positioned at the front of the ribbon 15 and the rear branch 21 of the corrugation 17 found at the rear of the ribbon 15 each have a fixing zone 25, with an auxiliary orifice 25A offset with respect to the median longitudinal axis (x) of the ribbon 15.
• the branches (31 A, 31 B) of the median portion 31 of the ribbon 15 further form two zones of 25 additional fixing, each with an auxiliary hole 25A offset from the median longitudinal axis (x) of the ribbon 15.
• the auxiliary holes 25A have a diameter less than 5mm, compatible for receiving a rivet.
• the ribbon 15 also has, at a front end, a third attachment interface 27 to a projector (not visible in this figure), this interface 27 forming an orifice 27A suitable for allowing the attachment of said projector.
• the interface 27 is directly adjacent to a fixing zone 23B of the front corrugation 17.
• Figure 3 is a perspective view of the support according to the invention mounted on the wheel arch liner.
• the wheel arch liner 3 has a flat central portion 3A, attached to two lateral portions 3B by two oblique intermediate portions 3C.
• the central 3A, lateral 3B and intermediate 3C portions are subjacent to the middle portion 31 of the ribbon 15.
• the ribbon 15 is in contact with an upper lateral edge 5A of the front wing 5, to which the tape 15 will be fixed at the attachment zones 23B described above.
• These fixing zones 23B are therefore positioned at a first interface for fixing the ribbon 15 to the front fender 5.
• the fixing zones 25 are positioned at a second interface between the ribbon 15 and the wheel arch lining 3, these zones 25 preferably being fixed to the wheel arch lining 3 underlying by welding (point (s) of welding by electrical resistance) and / or bonding.
• the ribbon 15 thus forms an absorption zone between the first and second interfaces.
• Figure 4 is a sectional view of the connection between the support and the projector.
• the support 13 has, at the front end, the third interface for fixing 27 to the projector 7. This fixing is preferably carried out by a nut 27B.
• Figure 5 is a sectional view of the support mounted on the wheel arch liner.
• nuts 23D which will make the connection between the upper lateral edge of the wing (not visible in this figure) and the vertices 23 of the undulations 17 of the ribbon 15.
• This figure also makes it possible to observe an offset (a) between the oblique intermediate portion 3C before and the oblique blade 31 C of the middle portion 31 of the ribbon 15.
• This offset (a) is important to compensate for manufacturing tolerances, and is preferably between 2 and 8mm.
• auxiliary holes 25A allows the positioning, after-sales, of a replacement support 13 on the wheel arch liner 3, in the event of damage to said support 13 following an impact.
• These holes are intended to allow the correct positioning of the support 13 on the lining 3, then the fixing, after drilling of the lining, of the support 13 using rivets (not visible in these figures), so as to allow the maintenance of the support 13 on the lining 3.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Body Structure For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=65244379

Family Applications (1)

Country Status (4)

Families Citing this family (3)

Family Cites Families (11)

• 2018
  • 2018-10-03 FR FR1871120A patent/FR3086916B1/fr active Active
• 2019
  • 2019-09-18 WO PCT/FR2019/052186 patent/WO2020070404A1/fr unknown
  • 2019-09-18 EP EP19794602.3A patent/EP3860902A1/de active Pending
  • 2019-09-18 CN CN201980064974.7A patent/CN112839859B/zh active Active

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