EP4405214A1 - Pare-chocs à armature à patte anti-affaissement, pour un véhicule terrestre - Google Patents
Pare-chocs à armature à patte anti-affaissement, pour un véhicule terrestreInfo
- Publication number
- EP4405214A1 EP4405214A1 EP22773758.2A EP22773758A EP4405214A1 EP 4405214 A1 EP4405214 A1 EP 4405214A1 EP 22773758 A EP22773758 A EP 22773758A EP 4405214 A1 EP4405214 A1 EP 4405214A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crosspiece
- paa
- vehicle
- vertical direction
- support piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R2019/245—Arrangements for mounting bumpers on vehicles with adjusting means to compensate manufacturing tolerances, e.g. between bumper and energy absorbers
Definitions
- TITLE FRAME BUMPER WITH ANTI-SAG LUG, FOR A LAND VEHICLE
- the invention relates to land vehicles, and more specifically to bumpers (or shields) which are intended to equip the front or rear parts of land vehicles.
- Certain land vehicles generally of the automobile type, comprise a front part and/or a rear part comprising a bumper (or shield) of large dimensions, which requires that it comprises not only a shock absorption device but also a frame both hidden by a bumper (or shield) skin.
- the absorption device comprises at least one crosspiece (or beam) which is installed transversely.
- the absorption device also comprises two energy absorbers, each having a first end fixedly secured to the crossmember and a second end coupled to a structural part of the vehicle, and arranged so as to compress their material in the longitudinal direction of the vehicle in the event of an impact suffered by the crossmember, in order to absorb at least part of the energy of this impact.
- the frame comprises a structure to which the skin is fixedly attached in order to give it rigidity, and comprising two fixing lugs fixedly attached to the crosspiece while being supported by the latter.
- the two fixing lugs are fixedly secured to the crosspiece near the two opposite ends of the latter, and therefore the further these two opposite ends are from each other, the greater the distance separating the two fixing lugs. important.
- the more distance separating the two fixing brackets is important the more there is a risk of subsidence or deflection of the part of the frame structure which is suspended above the crosspiece.
- the immobilization of the support piece in its support position is done by means of a screw.
- the vibrations and shocks generated and undergone by the vehicle tend to induce a progressive unscrewing of this screw, and therefore it can happen that the support piece moves vertically and/or transversely and/or is driven in rotation with respect to anti-sag leg.
- This can then induce unpleasant and potentially disturbing clashes for the passengers of the vehicle, and a possible deformation of the reinforcement and therefore also of the skin which can modify the gap between the edge of the skin and at least one neighboring bodywork equipment (such as the front bonnet or a wing).
- the support piece is no longer secured to the anti-sagging bracket, and therefore falls, which can cause deformations of the reinforcement and of the skin again. bigger.
- the aim of the invention is therefore in particular to improve the situation.
- a bumper intended to equip a vehicle and comprising:
- a cross member capable of being coupled to a structural part of the vehicle, and - a frame comprising two fixing lugs fixedly secured to the crosspiece while being supported by the latter and an anti-sag tab located between the fixing lugs and on which is installed a support piece movable in a vertical direction in order to be immobilized in a support position in which it rests on the crosspiece.
- This bumper is characterized in that its support piece and anti-sagging tab comprise first (s) and second (s) coupling elements cooperating together to couple them to each other with freedom of movement along the vertical direction while preventing rotation of one relative to the other.
- the support piece can now be pre-equipped with the anti-sagging bracket and therefore the frame before it arrives on a vehicle assembly line, and be permanently immobilized in its support position by relative to the lower part of the anti-sag leg, without risk of turning or shifting transversely.
- the bumper according to the invention may comprise other characteristics which may be taken separately or in combination, and in particular:
- the support piece may include two first coupling elements defined at the same level in the vertical direction, and the anti-sagging bracket may include two second coupling elements defined at the same level in the vertical direction;
- each first coupling element can be a clipping lug
- each second coupling element can be an oblong hole having its largest dimension in the vertical direction and capable of receiving a corresponding clipping lug by clipping;
- the anti-sagging bracket may comprise two walls extending mainly in the vertical direction and a longitudinal direction perpendicular to the latter and between which is installed with a reduced transverse clearance the support piece in order to allow its guidance in the vertical direction when placed in its support position while participating in the prevention of rotation of the support piece relative to the anti-sagging tab;
- the support piece may include a return element pushing the support piece towards the crossbar so that it moves automatically towards its support position;
- the support piece may comprise the return element
- the anti-sag tab may comprise a protrusion extending at least in the longitudinal direction and against which one end rests under stress free from the return element in order to push the support piece towards the crosspiece
- the return element can be a flexible bracket
- the crossmember may comprise two energy absorbers each having a first end secured fixedly to the crossmember and a second end intended to be coupled to the structural part of the vehicle, and arranged so as to compress their material in a longitudinal direction of the vehicle in the event of impact suffered by the crosshead.
- the invention also proposes a land vehicle, possibly of the automotive type, and comprising a structural part to which is fixedly secured at least one bumper of the type presented above.
- FIG. 1 schematically illustrates, in a perspective view from the front side, part of an embodiment of a bumper according to the invention, before it is fitted to a front part of a vehicle,
- FIG. 2 schematically illustrates, in a perspective view from the side of the front face, a lower part of an anti-sag tab of the bumper of FIG. 1, equipped with an example of a support piece in the position of support relative to the upper face of the crosspiece,
- FIG. 3 schematically illustrates, in a perspective view from the side of the rear face, the support part of Figure 2 in the support position with respect to the upper face of the crosspiece, and
- FIG. 4 schematically illustrates, in a perspective view from the front side and in section in a longitudinal and vertical plane, part of the left part of the bumper of FIG.
- the object of the invention is in particular to propose a bumper (or shield) PC, intended to be installed in a front or rear part of a vehicle to absorb energy in the event of an impact suffered by this front or rear part. , and comprising an anti-sagging leg PAA with support piece PM that can be permanently installed in a support position.
- the bumper (or shield) PC is intended to be part of a vehicle of the automotive type, such as for example a car. But the invention is not limited to this type of vehicle. It relates in fact to any land vehicle comprising a front or rear part which must include a bumper which may be of large dimensions in the transverse and vertical directions.
- the bumper PC is intended to form part of a front part of a motor vehicle. But the PC bumper can also be intended to be part of a rear part of a land vehicle.
- the direction X is the longitudinal direction of the vehicle V, which is parallel to the lateral sides comprising the side doors
- the direction Y is the transverse direction of the vehicle V, which is perpendicular to the longitudinal direction X
- the direction Z is the vertical direction of the vehicle V, which is perpendicular to the longitudinal X and transverse Y directions.
- FIG. 1 There is schematically illustrated in Figure 1 part of an embodiment of a bumper (or shield) PC according to the invention, before it is installed in a part (here before) of a vehicle (here car).
- a bumper PC comprises at least one crosspiece TA, intended to be coupled to a structural part of a vehicle (here in the front part), and a frame AP secured fixedly to this crosspiece TA.
- This crosspiece TA has its greatest extension along the transverse direction Y of the vehicle and is preferably made of metal, for example steel or aluminum.
- Each energy absorber AEj comprises first E1 and second E2 opposite ends.
- the first end E1 is fixedly secured to a rear face of the crosspiece TA and the second end E2 is intended to be coupled to a structural part of the vehicle (here forming part of its front part).
- Each energy absorber AEj is preferably made of metal, for example steel or aluminum.
- each second end E2 of an energy absorber AEj and the corresponding structural part of the vehicle can be done via a fixing plate PTj.
- the latter (PTj) can, for example, be welded to the second end E2 of the associated energy absorber AEj and screwed onto the part (here front) of the vehicle.
- the fixed attachment of each first end E1 to the rear face of the crosspiece TA is preferably done by welding.
- Each energy absorber AEj is arranged in such a way as to compress its material in the longitudinal direction X of the vehicle in the event of an impact suffered by the crossmember TA.
- the reinforcement AP comprises a structure extending transversely and vertically above the crosspiece TA and comprising two fixing lugs PFj and an anti-sag tab PAA, and to which a skin (not shown) is intended to be fixedly attached. .
- This skin is intended to fully mask the AP reinforcement and the absorption device (here TA, AEj and PTj).
- the two fixing lugs PFj are fixedly secured to the crosspiece TA while being supported by the latter (TA).
- the two fixing lugs PFj can be fixedly secured to the crosspiece TA near the two opposite ends of the latter (TA).
- each fixing lug PFj can be fixedly secured to the crosspiece TA via a fixing bracket EFj, fixedly secured to the latter (TA) and whose position in the vertical direction Z is preferably adjustable.
- the anti-sagging tab PAA is located between the two fixing tabs PFj, for example, and as illustrated without limitation in FIG. 1, at an equal distance from the latter (PFj).
- a support piece PM is installed on the anti-sagging bracket PAA while being movable in the vertical direction Z in order to be able to be immobilized in a support position (adjustable) in which it s press on the TA crosspiece.
- the support piece PM in its support position the support piece PM is based on the upper face FS of the crosspiece TA. But in a variant embodiment, in its support position the support part PM could rest on an upper face of a part fixedly fixed to the crosspiece TA.
- the support piece PM equips the lower part of the anti-sag tab PAA in order to make the length (along Z) of the latter (PAA) variable and therefore adaptable, and thus to allow it to lean ( here) on the upper face FS of the crosspiece TA in order to prevent the subsidence of the transverse part of the structure of its reinforcement AP.
- the support piece PM may have a section in a longitudinal and vertical plane having a general L-shape. In this case, it is its lower wall which comes lean (here) on the upper face FS of the crosspiece TA, while its “vertical and transverse” wall is coupled and secured to the lower part of the anti-sagging bracket PAA.
- the support piece PM could have sections in the longitudinal and vertical plane having other general shapes.
- the immobilization of the support piece PM in relation to the lower part of the anti-sagging bracket PAA, once placed in its support position, can be do, for example, by means of a screw (or a bolt) V, as illustrated without limitation in Figures 1 and 2.
- the screw V passes through the support piece PM, possibly via a guide piece PG' (see figure 3), and is screwed into a threaded hole in this lower part of the anti-sag bracket PAA.
- the support piece PM and the anti-sagging tab PAA respectively comprise first (s) EC1 and second (s) EC2 coupling elements which cooperate together to couple them to each other with freedom of movement in the vertical direction Z (for position adjustment) while preventing rotation of one relative to the other.
- the PM bearing part can now be pre-equipped with the PAA anti-sag bracket and therefore the AP reinforcement before it arrives on a chain vehicle assembly, and be permanently immobilized in its support position relative to the lower part of the PAA anti-sag bracket, without risk of turning or shifting transversely. There is therefore no longer any risk that the PAA support tab generates clashes, and that the reinforcement and the skin are deformed, and consequently that the gap between the edge of the skin and neighboring bodywork equipment is amended. In addition, there is no longer any risk of the support piece PM separating from the anti-sag bracket PAA in the event of complete unscrewing of the screw V.
- the support part PM can comprise two first coupling elements EC1 which are defined at the same level in the vertical direction Z.
- the leg anti-sagging PAA can comprise two second coupling elements EC2 defined at the same level in the vertical direction Z. This makes it possible to avoid transverse displacements and rotations of the support piece PM in the event of complete unscrewing of the screw V
- each first coupling element EC1 can be arranged in the form of a clipping lug.
- each second coupling element EC2 can be an oblong hole having its largest dimension in the vertical direction Z and able to receive by clipping a corresponding EC1 clipping bracket.
- each second coupling element EC2 is a clipping lug and each first coupling element EC1 is an oblong hole having its largest dimension in the vertical direction Z and suitable for receiving by clipping the corresponding clipping tab.
- Coupling by clipping is advantageous because a technician can easily carry it out and it allows easy uncoupling, for example for the purpose of replacing the PM support piece. But other types of coupling can be considered.
- the lower part of the anti-sag tab PAA may comprise two walls PG extending mainly along the vertical Z and longitudinal X directions and between which is installed with a clearance transverse reduces the support piece PM. This allows precise guidance of the support piece PM in the vertical direction Z when it is placed in its support position, but also contributes to preventing the rotation of the support piece PM with respect to the PAA anti-sagging tab as well as a translation prevention in the transverse direction Y.
- the bumper PC can advantageously comprise a return element ER which is arranged so as to push the support piece PM towards the crosspiece TA so that it moves automatically towards its support position during the assembly phase of the reinforcement AP to the crosspiece TA.
- ER return element
- the support part PM which can include the return element ER.
- the anti-sagging tab PAA comprises a protuberance PL which extends at least along the longitudinal direction X and against which a free end of the return element ER rests under stress in order to push (vertically towards the bottom) the support piece PM towards the crosspiece TA.
- the protuberance PL is a small wall that protrudes forward on the lower part of the anti-sag tab PAA extending along the transverse Y and longitudinal X directions. But other arrangements of the protrusion PL can be envisaged.
- the return element ER can be a flexible tab, as illustrated without limitation. It can then optionally include an end which passes through a dedicated hole defined in the protuberance PL as illustrated without limitation. But the return element ER can be in other forms, and in particular in the form of a return spring.
- the walls PG are particularly useful in the presence of the return element ER, since they force the support part PM to move vertically towards its support position when it is pushed automatically by the element return ER, preventing it from shifting transversely.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2110010A FR3127177B1 (fr) | 2021-09-23 | 2021-09-23 | Pare-chocs à armature à patte anti-affaissement, pour un véhicule terrestre |
| PCT/FR2022/051641 WO2023047032A1 (fr) | 2021-09-23 | 2022-08-31 | Pare-chocs à armature à patte anti-affaissement, pour un véhicule terrestre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4405214A1 true EP4405214A1 (fr) | 2024-07-31 |
Family
ID=78086593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22773758.2A Pending EP4405214A1 (fr) | 2021-09-23 | 2022-08-31 | Pare-chocs à armature à patte anti-affaissement, pour un véhicule terrestre |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4405214A1 (fr) |
| FR (1) | FR3127177B1 (fr) |
| WO (1) | WO2023047032A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL163145C (nl) | 1970-10-14 | 1980-08-15 | Bouwstaal Roermond Nv | Buigmatrijs voor het buigen van wapeningsmatten. |
| US6209935B1 (en) * | 1999-07-23 | 2001-04-03 | Daimlerchrysler Corporation | Front bumper adjustable fascia |
| FR3104509B1 (fr) | 2019-12-11 | 2022-05-06 | Psa Automobiles Sa | Véhicule automobile comportant une armature de pare-chocs |
-
2021
- 2021-09-23 FR FR2110010A patent/FR3127177B1/fr active Active
-
2022
- 2022-08-31 EP EP22773758.2A patent/EP4405214A1/fr active Pending
- 2022-08-31 WO PCT/FR2022/051641 patent/WO2023047032A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023047032A1 (fr) | 2023-03-30 |
| FR3127177A1 (fr) | 2023-03-24 |
| FR3127177B1 (fr) | 2025-01-10 |
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