EP4313689A1 - Absorbeur de chocs hybride présentant des moyens de positionnement pour son pré-montage - Google Patents
Absorbeur de chocs hybride présentant des moyens de positionnement pour son pré-montageInfo
- Publication number
- EP4313689A1 EP4313689A1 EP22707810.2A EP22707810A EP4313689A1 EP 4313689 A1 EP4313689 A1 EP 4313689A1 EP 22707810 A EP22707810 A EP 22707810A EP 4313689 A1 EP4313689 A1 EP 4313689A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- absorber
- positioning means
- designed
- fixing
- structural element
- 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.)
- Withdrawn
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
- 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
Definitions
- Hybrid shock absorber having positioning means for its pre-assembly
- shock absorbers for motor vehicles in particular hybrid shock absorbers, made of metal and plastic material, as well as vehicles fitted with such absorbers.
- repairability shocks i.e. shocks suffered at low speeds of the order of 15 to 20 kilometers per hour.
- the behavior of motor vehicles in these three situations is regulated and tested by implementing standardized test procedures. The requirements in terms of the results of these tests are always more numerous and more difficult to meet and force car manufacturers to constantly innovate.
- shock absorption systems which as a rule comprise a bumper beam connected to the vehicle chassis by means of absorption boxes arranged between the beam of bumpers and a side member and designed to deform during an impact, typically by undergoing compression so as to allow the approximation of the bumper beam towards the side members.
- the bumper beam and the absorption boxes are made of steel or aluminum.
- Automobile manufacturers know very well how to model the deformations of these metallic shock absorption systems.
- these absorption systems have defects such as excessive mass for steel elements or their cost for aluminum elements.
- absorption boxes made of plastic material they present risks of breakage during an impact, therefore no longer performing their function of maintaining the bumper beam, or even risk undergoing uncontrolled deformations unacceptable for most regulations, such as those known from document FR3047950. Due to their drawbacks, hybrid absorbers are still little used.
- the usual masses of the absorption boxes and of the beam are such that the assembly of the absorption systems, in particular following a shock repairability in a garage not equipped with robots to handle the parts to be assembled, can be prove laborious and dangerous for operators in the event of a fall, before or during their assembly.
- an object of the present invention is to overcome the problems set out above.
- an object of the present invention is to provide a shock absorber making it possible to manufacture a hybrid shock-absorbing device, that is to say comprising plastic material elements whose mass is reduced compared to to a classic system, whose manufacturing costs are controlled and facilitate their assembly.
- the present invention relates to a shock absorber, for a motor vehicle, comprising a deformation casing made at least in part of plastic material and designed to absorb by deforming at least part of the energy of a shock transmitted to the absorber, the housing being designed to be fixed by one end to a bumper crossmember and by another end to a structural element of the vehicle chassis, at least one of the ends comprising a fixing interface allowing the fixing of the absorber on a fixing zone arranged on the structural element and/or the crosspiece, the absorber being characterized in that it comprises means of positioning, resulting from material with the deformation box, designed to cooperate with the structural element and/or the crosspiece so as to position and maintain the attachment interface opposite the attachment zone.
- the invention also relates to a vehicle comprising at least one shock absorber according to the invention.
- the shock absorber according to the invention has reduced mass and manufacturing costs thanks to the use of plastic material, in particular to manufacture the deformation box.
- the shock absorber according to the invention can be positioned on a structural element of a chassis of a vehicle thanks to the positioning means: thus the fixing interface is easily positioned and is held by said positioning means, facing of the fixation area, awaiting further fixation. There is then no need to attach the shock absorber to keep it in position.
- the positioning means comprise at least one positioning pin.
- the positioning means are made of plastic material.
- the fixing interface is an absorber plate comprising a passage orifice allowing the positioning means to pass through the absorber plate.
- Figure 1 shows a perspective view from below of a shock absorber according to the invention, fixed to a bumper cross member;
- FIG. 2 shows the absorber of FIG. 1 according to a perspective and top view as well as the fixing zone provided on a chassis element of a vehicle according to the invention.
- a shock absorber 1 according to the invention is intended to equip a front face of a motor vehicle in order to secure a bumper crossmember 2, illustrated in FIGS. 1 and 2, to the vehicle so that it meets regulatory safety requirements.
- the absorber 1 comprises a deformation casing 3 made at least partly of plastic material.
- the deformation casing 3 is designed to absorb, by deforming, at least part of the energy of an impact transmitted to the absorber 1.
- the casing 3 is designed to be fixed by one end 4 to the crosspiece 2 of bumper and by another end 5 to a structural element 6 of the vehicle frame, illustrated in FIG. 2, such as a cradle 7.
- At least one 5 of the ends 4, 5 comprises a fixing interface 8 which allows the fixing of the absorber 1 on a fixing zone 9 provided on the structural element 6, such as a cradle plate 10 illustrated in the figure 2.
- the fixing interface 8 is for example an absorber plate 11, metallic, having a plurality of orifices 12 positioned to be brought, during the assembly of the absorber 1, facing holes 13 for fixing corresponding, formed on the cradle plate 10.
- the orifices 12 and the fixing holes 13 obviously allow the attachment of the cradle plate 10 and the absorber plate 11, for example by means of nuts.
- the absorber 1 further comprises positioning means 14, integral with the deformation housing 3, designed to cooperate with the structural element 6, in particular the cradle plate 10, so as to make it possible to position and maintain the fixing interface 8 opposite the fixing zone 9.
- the positioning means 14 integral with the deformation housing 3, designed to cooperate with the structural element 6, in particular the cradle plate 10, so as to make it possible to position and maintain the fixing interface 8 opposite the fixing zone 9.
- the 14 comprise at least one positioning pin 15, integral with the deformation housing 3, illustrated in the figures.
- the pin 15 is made of plastic material and protrudes from the fixing interface 8.
- the absorber plate 11 comprises a passage orifice 16 which allows the passage of the positioning means 14, in this case the pin 15, through the absorber plate 11.
- the cradle plate 10 includes an indexing hole 17 which allows the introduction of the pin 15, their respective positions making it possible to position and maintain the fixing interface 8 opposite the fixing zone 9. In order to prevent the pawn
- the pin 15 advantageously comprises a groove 18, illustrated in Figure 1 and provided on the circumference of the pin 15, capable of cooperating with the periphery of the indexing hole 17.
- the shock absorber 1 according to the invention has the advantages of a hybrid absorber made at least in part from plastic material, namely reduced mass and reduced manufacturing costs.
- the positioning means 14, in particular the pin 15 make it possible to facilitate the assembly of the absorber 1 on the structural element 6 of the vehicle chassis, without requiring its immediate attachment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2102890A FR3121092B1 (fr) | 2021-03-23 | 2021-03-23 | Absorbeur de chocs hybride présentant des moyens de positionnement pour son pré-montage. |
| PCT/FR2022/050242 WO2022200700A1 (fr) | 2021-03-23 | 2022-02-10 | Absorbeur de chocs hybride présentant des moyens de positionnement pour son pré-montage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4313689A1 true EP4313689A1 (fr) | 2024-02-07 |
Family
ID=75850340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22707810.2A Withdrawn EP4313689A1 (fr) | 2021-03-23 | 2022-02-10 | Absorbeur de chocs hybride présentant des moyens de positionnement pour son pré-montage |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4313689A1 (fr) |
| FR (1) | FR3121092B1 (fr) |
| WO (1) | WO2022200700A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2102890A6 (fr) | 1970-08-27 | 1972-04-07 | Gueytron Jean Claude | |
| GB2348263A (en) * | 1999-03-26 | 2000-09-27 | Draftex Ind Ltd | Energy absorbing arrangements |
| IT1319048B1 (it) * | 2000-10-18 | 2003-09-23 | Adlev Srl | Sistema per l'assorbimento dell'energia d'urto per veicoli |
| KR101601428B1 (ko) * | 2014-06-03 | 2016-03-09 | 현대자동차주식회사 | 차량용 크래쉬박스 |
| CN206579590U (zh) | 2016-12-23 | 2017-10-24 | 全耐塑料公司 | 用于机动车的碰撞吸能盒和包括该碰撞吸能盒的防撞梁 |
-
2021
- 2021-03-23 FR FR2102890A patent/FR3121092B1/fr active Active
-
2022
- 2022-02-10 EP EP22707810.2A patent/EP4313689A1/fr not_active Withdrawn
- 2022-02-10 WO PCT/FR2022/050242 patent/WO2022200700A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022200700A1 (fr) | 2022-09-29 |
| FR3121092B1 (fr) | 2024-08-02 |
| FR3121092A1 (fr) | 2022-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR3043050A1 (fr) | Traverse de vehicule | |
| WO2019115552A1 (fr) | Systeme d'absorption de choc pour vehicule automobile | |
| FR3072925A1 (fr) | Dispositif d'amortissement de choc avant d'un vehicule automobile, comprenant un deflecteur d'air basculant et un amortisseur deformable fixes l'un a l''autre. | |
| EP4313689A1 (fr) | Absorbeur de chocs hybride présentant des moyens de positionnement pour son pré-montage | |
| WO2022229525A1 (fr) | Dispositif de fixation d'un capteur à rupture programmée | |
| EP2207709B1 (fr) | Vehicule automobile comportant une traverse une face avant technique et un convergent fixes les uns sur les autres | |
| EP0588719A1 (fr) | Pare-chocs déboîtable pour véhicule | |
| FR3124983A1 (fr) | Traverse de pare-chocs comportant un dispositif d’arrimage d’un anneau de remorquage. | |
| EP4359287B1 (fr) | Ensemble de structure de face avant pour un véhicule automobile | |
| FR3120335A1 (fr) | Absorbeur de chocs en matière plastique pour système d’absorption de chocs hybride. | |
| FR3120336A1 (fr) | Dispositif d’absorption de chocs hybride. | |
| FR3004157A1 (fr) | Deflecteur aerodynamique pour partie arriere d’un vehicule | |
| FR3159366A1 (fr) | Dispositif d’absorption de chocs renforcé en traction. | |
| EP4402023B1 (fr) | Traverse de pare-chocs présentant des affaiblissements autour d'une douille d'arrimage | |
| FR3022603A1 (fr) | Dispositif absorbeur d'energie et vehicule correspondant | |
| WO2007135327A1 (fr) | Structure de vehicule automobile comportant un support d'attelage | |
| FR3124142A1 (fr) | Véhicule comportant un dispositif d’absorption de chocs avec une traverse de pare-chocs basculée | |
| FR3156085A1 (fr) | Support de boitier électronique avec zones frangibles. | |
| EP4347320B1 (fr) | Dispositif de renfort de poutre de pare-chocs avec une lumière pour le passage d'une douille de remorquage | |
| FR3167357A1 (fr) | Ensemble pour véhicule automobile et véhicule automobile équipé d’un tel ensemble | |
| FR2869377A1 (fr) | Boitier de deformation pour vehicule automobile | |
| FR3116247A1 (fr) | Ensemble absorbeur d’énergie de choc | |
| FR3127179A1 (fr) | Dispositif de renfort d’une poutre de pare-chocs présentant des surfaces inclinées adaptées aux différents chocs tests. | |
| EP3372478B1 (fr) | Pièce de face avant de véhicule automobile située dans une zone de choc tibia et intégrant un boitier rigide | |
| WO2022248785A1 (fr) | Véhicule automobile présentant un longeron extérieur à déformation programmée. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20230929 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20240703 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20250127 |