WO2022263735A1 - Ensemble pour véhicule automobile comprenant une poutre de pare-chocs et deux absorbeurs - Google Patents
Ensemble pour véhicule automobile comprenant une poutre de pare-chocs et deux absorbeurs Download PDFInfo
- Publication number
- WO2022263735A1 WO2022263735A1 PCT/FR2022/050893 FR2022050893W WO2022263735A1 WO 2022263735 A1 WO2022263735 A1 WO 2022263735A1 FR 2022050893 W FR2022050893 W FR 2022050893W WO 2022263735 A1 WO2022263735 A1 WO 2022263735A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- assembly
- modular extension
- extension piece
- absorption plate
- bumper beam
- Prior art date
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 39
- 238000010521 absorption reaction Methods 0.000 claims abstract description 53
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 description 10
- 239000002184 metal Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- 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
- B60R19/023—Details
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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
- B60R2019/247—Fastening of bumpers' side ends
Definitions
- the present invention relates to the field of bumpers for motor vehicles.
- the present invention relates more particularly to an assembly for a motor vehicle comprising a bumper beam and two absorbers, as well as a vehicle comprising such an assembly.
- a motor vehicle generally comprises at least one bumper device, also called a shock absorption system.
- the bumper device may comprise at least one assembly comprising a transverse bumper beam, for example a high beam and a low beam, and at least two longitudinal absorbers associated with each beam.
- the assembly may also include plates allowing the device to be fixed to the structure of the vehicle.
- the document WO2017/083997 discloses a shock absorption device placed on the front bumper of a vehicle.
- the bumper device comprises several layers to absorb energy during an impact, and a panel comprising lateral protrusions.
- the lateral protrusions do not include any means of absorbing the lateral components of the forces during an impact.
- the document CN211223333 relates to a motor vehicle comprising a bumper device with detachable wings fixed laterally on the front bumper serving to absorb energy in the event of impact. These wings are detachable to facilitate transportation of the bumper device. This document does not provide for the absorption of cross-cutting components of shocks.
- the object of the present invention is to respond to at least one of the problems and/or drawbacks mentioned above.
- the aim of the invention is to propose a simple overall solution for a motor vehicle bumper device making it possible to meet the constraints of a low overlap impact protocol with a lateral force component, and including parts that can be used in sets for different geographies.
- the invention relates to an assembly for the bumper device of a motor vehicle comprising at least one bumper beam and two absorbers;
- the bumper beam is formed by an elongated hollow body comprising two ends at which the absorbers are fixed;
- the assembly further comprises two modular extension pieces; each modular extension piece comprising a body with a first part attached to one end of the bumper beam, and a second part projecting from the end in a longitudinal direction of the bumper beam.
- the assembly is remarkable in that a side absorption plate is also arranged at the end of the second part of the body of each modular extension piece, and extends parallel to the absorbers.
- the lateral absorption plate of the modular extension pieces constitutes a simple extension of the latter.
- the lateral absorption plate is an element that absorbs the transverse components of "small overlaps" type shocks according to the standards in force in the United States.
- the extension piece is said to be modular because to adapt the assembly to a market in which the standards in force are less restrictive, the lateral absorption plate can be easily cut to reduce the mass of the assembly and reduce the consumption of the vehicle.
- each modular extension piece further comprises at least one reinforcing element, fixed on the one hand to the body, and on the other hand to the lateral absorption plate.
- the reinforcing element makes it possible to increase the rigidity of the modular extension part, and therefore the use of a lower material thickness for said modular extension part.
- the reinforcement element also makes it possible to improve the behavior of the modular extension piece in the event of shocks, by avoiding bending of the body.
- the lateral absorption plate is integral with the body of the modular extension piece. This solution is economical and simple to implement.
- the lateral absorption plate is an added part fixed to the modular extension part by welding and/or by means of the reinforcing element.
- the lateral absorption plate is integral with the reinforcing element.
- At least one reinforcing element is formed by a hollow body; preferably formed by a U-shaped profiled element.
- a profile-type hollow body is rigid with material savings.
- At least one reinforcing element is formed by a plate welded to the body and to the side absorption plate; preferably each modular extension piece comprises at least two reinforcement elements and therefore has at least two superposed plates welded to the body and to the lateral absorption plate.
- each reinforcing element extends over the body of the modular extension piece over a distance of less than 80% of the distance between the lateral absorption plate and the end of the bumper beam. shocks; preferably over a distance of less than 70%.
- each modular extension piece being capable of deforming it towards a crushed position in the event of impact, the assembly is remarkable in that, in the crushed position, the reinforcing element is in contact with an absorber or a plate of an absorber, so as to limit the risk of breakage of the modular extension part.
- the absorbers comprising one end fixed to the bumper beam and another end equipped with a fixing plate, each modular extension piece being capable of deforming towards a crushing position in the event of an impact, the assembly is remarkable in that each lateral absorption plate is dimensioned so that, in the crushed position, the lateral absorption plate is in contact with an absorber or a plate of a absorber.
- the dimensioning of the lateral absorption plate makes it possible to ensure the transmission of the forces towards the absorber plates and/or the absorbers, and consequently towards the side members of the structure of the vehicle, rather than towards the absorbers which are not configured to absorb lateral impact components.
- the second part of the body of the modular extension piece forms an angle with the bumper beam. This increases the curvature of the bumper beam to match styling, and protects technicians from the sharp edges of the bumper beam during assembly.
- the invention relates to a motor vehicle with at least one bumper device comprising at least one assembly according to the first aspect.
- the invention relates to a modular extension part intended to be mounted in an assembly according to the first aspect, the modular extension part comprising an elongated flat body with a first part comprising means for fixing on a bumper beam, a second part in the extension of the first part; preferably forming an angle with the first part.
- the modular extension part is remarkable in that it also comprises a lateral absorption plate integral with the second part, in its extension, and forming an angle with the second part; preferably an angle between 90° and 180°; preferably an angle between 110° and 150°.
- the invention relates to a method for producing a modular extension part intended for an assembly for a motor vehicle comprising at least one bumper beam, two absorbers; and at least two modular extension pieces.
- the method is remarkable in that it comprises at least one step of forming each modular extension piece comprising a body and a lateral absorption plate integral with the body, by stamping and/or stamping; and in that it further comprises a step chosen from a step of fixing a rigid reinforcing element, fixed on the one hand to the body, and on the other hand to the lateral absorption plate for the formation of a set according to the first aspect; or a step of cutting each lateral absorption plate, in order to remove it.
- Such a method includes an alternative with a cutout which saves weight when the assembly is intended for a vehicle which will not be used on the North American market.
- FIG. 1 is a front perspective view of a detail of an assembly for a motor vehicle bumper device according to one embodiment of the invention
- Figure 2 is a rear perspective view of a detail of an assembly for a motor vehicle bumper device according to one embodiment of the invention
- Figure 3 is a top view of Figure 2.
- the term “understand” is synonymous with “include” and is not limiting in that it authorizes the presence of other elements in the assembly, the modular extension piece, of the vehicle, or other process steps to which it refers. It is understood that the term “include” includes the terms “consist of”.
- a motor vehicle comprises at least one bumper device, which comprises at least one assembly 10, a detail of which is shown in Figure 1.
- the assembly 10 comprises at least one bumper beam 12 and two absorbers 14 of which only one is shown in Figures 1 to 3.
- the bumper beam 12 is formed by an elongated hollow body comprising two ends at which the absorbers 14 are fixed.
- the bumper beam 12 can be a straight or curved beam so as to adapt to the silhouette of the vehicle.
- the absorbers 14 are elongated parts which can have a variable length as needed depending on the type and silhouette of the vehicle. They extend in a direction substantially perpendicular to the longitudinal direction of the bumper beam.
- the absorbers 14 include a end fixed to the bumper beam and another end which can be equipped with an extension, not shown, or with a fixing plate 16 to fix them to the structure of the vehicle.
- the assembly further comprises two modular extension pieces 18, only one of which is shown in Figures 1 to 3.
- the modular extension part 18 is a metal part, such as steel, which is added to the bumper beam 12.
- the modular extension part can be formed by a piece of steel sheet.
- a piece of sheet metal with a thickness between 1.0 and 2.5 mm; preferably between 1.2 and 2.0 mm.
- the modular extension piece can be fixed on a front face of the bumper beam, that is to say on a face opposite to the face to which the absorber is fixed.
- the fixing of the modular extension piece 18 to the bumper beam can be done by any means, and preferably is done by welding.
- the modular extension piece 18 comprises a body 20, which is advantageously an elongated body.
- the body 20 comprises a first part attached to one end of the bumper beam, and a second part projecting from the end in a longitudinal direction of the bumper beam.
- a longitudinal direction of the bumper beam In the context of a curved beam, we mean the average longitudinal direction.
- the body 20 The first part of the body may comprise means for fixing the body to the bumper beam 12, such as for example one or more lugs 22 for fixing the body 20 by welding.
- the body includes a tab 22 for attachment to an upper face of the bumper beam 12.
- the second part extends in the extension of the first part, and preferably forms an angle with the first part.
- the angle of the second part is generally chosen to increase the curve at the end of the beam by bumpers and match styling constraints. This angle can also allow the body 20 to at least partially cover the end of the bumper beam so as to protect the technicians from the sharp edges of the bumper beam during assembly.
- the body 20 can also comprise stiffening elements such as for example ribs, undulations, etc.
- a lateral absorption plate 24 is also arranged at the end of the second part of the body of the modular extension part 18, and extends laterally to the absorber 14.
- the lateral absorption plate 22 extends the modular extension piece 18 in the direction of the absorber, that is to say in the context of a front bumper device, towards the rear of the vehicle, and vice versa.
- the lateral absorber plate 22 can form an angle with the body 20 so as to be preferably parallel or substantially parallel to the absorber.
- the angle formed between the second part of the body 20 of the modular extension piece 18 is preferably an angle between 90° and 180°. Preferably an angle between 100° and 160°. Preferably an angle between 110° and 150°. Preferably an angle between 110° and 140°.
- the side absorption plate 24 can be integral with the body of the modular extension piece 18, as shown in Figures 1 to 3. Alternatively, the side absorption plate can also be an insert fixed to the modular extension piece, preferably by welding.
- the modular extension piece 18 further comprises at least one rigid reinforcing element 26, fixed on the one hand to the body 20, and on the other hand to the lateral absorption plate 24.
- the reinforcement element 26 is fixed on faces of the modular extension part 18 which are in the direction of the absorbers as shown in FIGS. 2 and 3.
- the reinforcing element 26 can be formed by a plate welded to the body and to the lateral absorption plate, a hollow body, or any other type of element making it possible to reinforce the rigidity of the modular extension piece 18 .
- the assembly comprises a reinforcing element 26 formed by a hollow body welded to the body and to the side absorption plate; preferably the hollow body is a U-shaped profiled element which may include fixing lugs.
- the modular extension piece comprises a reinforcing element formed by a metal plate welded to the body and to the lateral absorption plate, or comprises two reinforcing elements formed by two superimposed metal plates welded to the body and to the side absorption plate.
- the reinforcing element may be integral with the lateral absorption plate.
- the lateral absorption plate is preferably a part added to the body of the modular extension part. The lateral absorption plate can then be fixed to the body of the modular extension piece by means of the reinforcement element.
- the reinforcing element 26 may include stiffening elements such as ribs, corrugations, etc.
- the modular extension part During an impact with a transverse component at the level of the modular extension part 18, the modular extension part is deformed, and the second part of the body and the lateral absorption plate move in the direction of the absorber, up to a crushing position. So as not to interfere with the deformation of the modular extension piece 18, the reinforcing element 26 extends over the body 20 of the modular extension piece over a distance of less than 80% of the distance between the plate d side absorption 24 and the end of the bumper beam 12; preferably over a distance of less than 70%.
- the lateral absorption plate 24 can be dimensioned so that in the crushing position of the modular extension piece 18, the lateral absorption plate is in contact with an absorber 14 or a plate 16 d an absorber.
- a method of producing a modular extension piece intended for an assembly for a motor vehicle comprising at least one bumper beam shocks, two absorbers; and at least two modular extension pieces can make it possible to obtain a modular extension piece capable of absorbing shocks with a lateral component, or else a lightened modular extension piece.
- the method comprises at least one step of forming each modular extension piece comprising a body and a lateral absorption plate integral with the body, by stamping and/or stamping.
- the method further comprises a step of fixing a rigid reinforcing element, fixed on the one hand to the body, and on the other hand to the lateral absorption plate for the formation of an assembly for a device of bumper of a vehicle as described above; or a step of cutting each side absorption plate.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22727380.2A EP4355621A1 (fr) | 2021-06-14 | 2022-05-10 | Ensemble pour véhicule automobile comprenant une poutre de pare-chocs et deux absorbeurs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2106223A FR3123852A1 (fr) | 2021-06-14 | 2021-06-14 | Ensemble pour véhicule automobile comprenant une poutre de pare-chocs et deux absorbeurs. |
FRFR2106223 | 2021-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022263735A1 true WO2022263735A1 (fr) | 2022-12-22 |
Family
ID=77180187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2022/050893 WO2022263735A1 (fr) | 2021-06-14 | 2022-05-10 | Ensemble pour véhicule automobile comprenant une poutre de pare-chocs et deux absorbeurs |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4355621A1 (fr) |
FR (1) | FR3123852A1 (fr) |
WO (1) | WO2022263735A1 (fr) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1546947A (en) * | 1924-01-21 | 1925-07-21 | Cg Spring & Bumper Co | End and corner bumper |
FR2106223A5 (fr) | 1970-08-31 | 1972-04-28 | Medtronic Inc | |
US6695368B1 (en) * | 2002-10-31 | 2004-02-24 | Shape Corporation | Bumper mount forming corner on end of beam |
US20150151698A1 (en) * | 2013-12-04 | 2015-06-04 | Sungwoo Hitech Co., Ltd. | Method for manufacturing bumper beam unit for vehicle and bumper beam unit manufrctured thereby |
WO2017083997A1 (fr) | 2015-11-16 | 2017-05-26 | 陈达兵 | Pare-chocs de véhicule dans lequel de multiples plaques d'amortissement et d'absorption d'énergie sont disposées |
US20170151919A1 (en) * | 2015-12-01 | 2017-06-01 | Honda Motor Co., Ltd. | Vehicle body front structure |
US20170274849A1 (en) * | 2016-03-22 | 2017-09-28 | Ford Global Technologies, Llc | Vehicle bumper assembly |
CN211223333U (zh) | 2019-12-24 | 2020-08-11 | 佛山高明东之御汽车用品制造有限公司 | 可拆装的汽车前防护杠及汽车 |
FR3093045A1 (fr) * | 2019-02-27 | 2020-08-28 | Renault S.A.S. | Dispositif de protection pour un véhicule automobile, le dispositif comprenant une traverse avant |
-
2021
- 2021-06-14 FR FR2106223A patent/FR3123852A1/fr active Pending
-
2022
- 2022-05-10 WO PCT/FR2022/050893 patent/WO2022263735A1/fr active Application Filing
- 2022-05-10 EP EP22727380.2A patent/EP4355621A1/fr active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1546947A (en) * | 1924-01-21 | 1925-07-21 | Cg Spring & Bumper Co | End and corner bumper |
FR2106223A5 (fr) | 1970-08-31 | 1972-04-28 | Medtronic Inc | |
US6695368B1 (en) * | 2002-10-31 | 2004-02-24 | Shape Corporation | Bumper mount forming corner on end of beam |
US20150151698A1 (en) * | 2013-12-04 | 2015-06-04 | Sungwoo Hitech Co., Ltd. | Method for manufacturing bumper beam unit for vehicle and bumper beam unit manufrctured thereby |
WO2017083997A1 (fr) | 2015-11-16 | 2017-05-26 | 陈达兵 | Pare-chocs de véhicule dans lequel de multiples plaques d'amortissement et d'absorption d'énergie sont disposées |
US20170151919A1 (en) * | 2015-12-01 | 2017-06-01 | Honda Motor Co., Ltd. | Vehicle body front structure |
US20170274849A1 (en) * | 2016-03-22 | 2017-09-28 | Ford Global Technologies, Llc | Vehicle bumper assembly |
FR3093045A1 (fr) * | 2019-02-27 | 2020-08-28 | Renault S.A.S. | Dispositif de protection pour un véhicule automobile, le dispositif comprenant une traverse avant |
CN211223333U (zh) | 2019-12-24 | 2020-08-11 | 佛山高明东之御汽车用品制造有限公司 | 可拆装的汽车前防护杠及汽车 |
Also Published As
Publication number | Publication date |
---|---|
FR3123852A1 (fr) | 2022-12-16 |
EP4355621A1 (fr) | 2024-04-24 |
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