DE19502307A1 - Energy absorbing deformation element for protection of vehicle bodywork - Google Patents

Energy absorbing deformation element for protection of vehicle bodywork

Info

Publication number
DE19502307A1
DE19502307A1 DE19502307A DE19502307A DE19502307A1 DE 19502307 A1 DE19502307 A1 DE 19502307A1 DE 19502307 A DE19502307 A DE 19502307A DE 19502307 A DE19502307 A DE 19502307A DE 19502307 A1 DE19502307 A1 DE 19502307A1
Authority
DE
Germany
Prior art keywords
housing
deformation element
element according
designed
deformation
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Withdrawn
Application number
DE19502307A
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gerhardi and Cie
Original Assignee
Gerhardi and Cie
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gerhardi and Cie filed Critical Gerhardi and Cie
Priority to DE19502307A priority Critical patent/DE19502307A1/en
Publication of DE19502307A1 publication Critical patent/DE19502307A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • 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
    • B60R19/36—Combinations of yieldable mounting means of different types
    • 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
    • B60R19/30—Elastomeric material
    • 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

Landscapes

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

Abstract

The crash-cushioning or deformation element is mounted at the front of the vehicle. The energy absorber is a housing (5) containing a filling (6) of aluminium foam. The housing is an injection moulded plastics body.The housing may also be made of aluminium extruded parts or aluminium sheet parts. Alternatively the housing may be made from a plastics material with elastic recovery properties.

Description

Die Erfindung betrifft ein energieabsorbierendes Deformationsele­ ment zum Schutz der Kraftzeugkarosserie und zum Einbau zwischen einem Stoßfänger und einem Längsträger.The invention relates to an energy-absorbing deformation element ment to protect the vehicle body and for installation between one Bumper and a side member.

Bei einem Auffahrunfall mit geringer Geschwindigkeit zwischen 10 und 20 km/h kommt es bereits zu Deformationen der Karosserie, insbe­ sondere der Längsträger. Auch die Stoßfänger können dies nicht verhin­ dern.In a rear-end collision at low speed between 10 and 20 km / h there are already deformations of the body, in particular especially the side member. The bumpers cannot prevent this either other.

Bekannt sind teleskopartige Systeme, die jedoch sehr aufwendig sind. Bei nicht axialer Krafteinleitung versagen diese Systeme z. B. infolge Abknickens der Kolbenstangen.Telescopic systems are known, but they are very complex are. With non-axial force transmission, these systems fail e.g. B. due to kinking of the piston rods.

Aufgabe der Erfindung ist die Bereitstellung eines Deformationse­ lements, das bei einfachem Aufbau eine hohe Energieabsorption aufweist und das schnell montierbar und austauschbar ist.The object of the invention is to provide a deformation elements that have a high energy absorption with a simple structure and that can be quickly assembled and exchanged.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß ein Gehäuse mit Aluminiumschaum als Energieabsorber gefüllt ist.This object is achieved according to the invention in that a Housing is filled with aluminum foam as an energy absorber.

Die Erfindung unterscheidet sich insofern vom Stand der Technik, als das mit Aluminiumschaum gefüllte Gehäuse leicht und schnell mon­ tierbar sowie nach einer Deformation austauschbar ist. Die große Ener­ gieabsorption verhindert innerhalb eines weiten Bereich eine Deforma­ tion oder sonstige Beschädigung der Längsträger. Nach Untersuchungs­ ergebnissen hat Aluminiumschaum eine besonders hohe spezifische Ener­ gieaufnahmekapazität. Die Werkstoffkombination Aluminium/Aluminiumschaum bzw. Kunststoff/Aluminiumschaum erzielt man ein geringes Gewicht, wodurch die Gewichtsreduzierung im Fahrzeugbau gefördert wird. The invention differs from the prior art in that than the housing filled with aluminum foam easily and quickly mon animal and interchangeable after deformation. The great ener Gi absorption prevents deformity within a wide range tion or other damage to the side members. After investigation results, aluminum foam has a particularly high specific energy casting capacity. The combination of materials Aluminum / aluminum foam or plastic / aluminum foam is achieved a low weight, which reduces weight in vehicle construction is promoted.  

Eine kostengünstige Ausbildung erzielt man dadurch, daß das Ge­ häuse als Kunststoffspritzgußteil ausgebildet ist. Das Kunststoff­ spritzgußgehäuse kann weitere Funktionen, wie Clipsbefestigung, Ab­ dichtung und Kabelführungen übernehmen.Inexpensive training is achieved in that the Ge housing is designed as a plastic injection molded part. The plastic Injection molded housing can have other functions, such as clip attachment, Ab Take over seal and cable routing.

Die Recyclingfähigkeit wird dadurch verbessert, daß das Gehäuse als Aluminiumstrangpreßteil oder als Aluminiumblechformteil ausgebil­ det ist.The recyclability is improved in that the housing trained as an aluminum extrusion or as an aluminum sheet molded part det.

Leichte Stöße bei Fahrzeuggeschwindigkeiten bis zu 5 km/h können dadurch absorbiert werden, daß das Gehäuse aus einem elastischen rück­ stellfähigen Kunststoff besteht. Die Rückstellfähigkeit läßt das De­ formationselement unversehrt, so daß bei geringen Aufprallgeschwindig­ keiten ein Austausch des Deformationselements nicht erforderlich ist.Slight bumps at vehicle speeds of up to 5 km / h can are absorbed in that the housing from an elastic back adjustable plastic is made. The resilience leaves the De formation element intact, so that at low impact speed an exchange of the deformation element is not necessary.

Eine weitere Anpassungsmöglichkeit ist dadurch möglich, daß das Gehäuse mehrere Kammern aufweist.Another possibility of adaptation is possible in that the Housing has several chambers.

Eine Steuerung der Verformung ist dadurch möglich, daß die Konfi­ guration des Gehäuses der gewünschten Verformung angepaßt ist.Control of the deformation is possible in that the confi guration of the housing is adapted to the desired deformation.

Eine besonders feinfühlige Anpassung wird dadurch erzielt, daß die Wanddicke des Gehäuses variierend oder daß das Gehäuses als Fal­ tenbalg ausgebildet ist. Das Verformungsverhalten läßt sich in positi­ ver Weise beeinflussen. Der Verformungsweg läßt sich vergrößern.A particularly sensitive adjustment is achieved in that the wall thickness of the housing varies or that the housing as a case tenbalg is formed. The deformation behavior can be positi influence wise. The deformation path can be increased.

Ein Hauptvorteil des beschriebenen Deformationselements ist die Fähigkeit, auch in nicht axialer Richtung eingeleitete Energie zu ab­ sorbieren. Die Energiabsorption ist im Vergleich zum Bauteilgewicht sehr groß.A major advantage of the described deformation element is that Ability to absorb energy introduced in a non-axial direction sorb. The energy absorption is compared to the component weight very large.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung erläutert, die in schematischer Darstellung ein Kraftfahrzeug mit einem Deformationselement zeigt.An embodiment of the invention is based on the drawing explains the schematic representation of a motor vehicle shows a deformation element.

Die Zeichnung zeigt in schematischer Teilansicht ein Kraftfahr­ zeug 1 mit einem Längsträger 2 und einem Stoßfänger 3. Einzelheiten der Konstruktion des Längsträgers 2 und des Stoßfängers 3 sind nicht dargestellt.The drawing shows a schematic partial view of a motor vehicle 1 with a side member 2 and a bumper 3rd Details of the construction of the longitudinal beam 2 and the bumper 3 are not shown.

Zwischen dem Stoßfänger 3 und dem Längsträger 2 ist das Deforma­ tionselement 4 befestigt. Das Deformationselement 4 umfaßt ein Gehäuse 5 mit einer oder mehreren Kammern 7. Das Gehäuse 5 bzw. die Kammern 7 nehmen je eine Füllung 6 aus Aluminiumschaum auf.Between the bumper 3 and the side member 2 , the deformation element 4 is attached. The deformation element 4 comprises a housing 5 with one or more chambers 7 . The housing 5 and the chambers 7 each hold a filling 6 made of aluminum foam.

Ein Rückstellabschnitt 8 des Gehäuses 5 bestseht aus einem ela­ stischen rückstellfähigen Kunststoff. Dieser Rückstellabschnitt 8 kann leichte Stöße elastisch aufnehmen, ohne daß eine Verformung erfolgt.A reset section 8 of the housing 5 consists of an elastic resilient plastic. This reset section 8 can absorb light impacts elastically without deformation.

Claims (9)

1. Energieabsorbierendes Deformationselement zum Schutz der Kraftzeugkarosserie und zum Einbau zwischen einem Stoßfänger und einem Längsträger, dadurch gekennzeichnet, daß ein Gehäuse (5) eine Füllung (6) aus Aluminiumschaum als Energieabsorber aufnimmt.1. Energy-absorbing deformation element for protecting the vehicle body and for installation between a bumper and a side member, characterized in that a housing ( 5 ) receives a filling ( 6 ) made of aluminum foam as an energy absorber. 2. Deformationselement nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse als Kunststoffspritzgußteil ausgebildet ist.2. Deformation element according to claim 1, characterized in that that the housing is designed as a plastic injection molded part. 3. Deformationselement nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse als Aluminiumstrangpreßteil ausgebildet ist.3. Deformation element according to claim 1, characterized in that the housing is designed as an aluminum extrusion. 4. Deformationselement nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse als Aluminiumblechformteil ausgebildet ist.4. Deformation element according to claim 1, characterized in that the housing is designed as an aluminum sheet molded part. 5. Deformationselement nach Anspruch 2, dadurch gekennzeichnet, daß das Gehäuse aus einem elastischen rückstellfähigen Kunststoff be­ steht.5. Deformation element according to claim 2, characterized in that that the housing be made of an elastic resilient plastic stands. 6. Deformationselement nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gehäuse mehrere Kammern aufweist.6. Deformation element according to one of claims 1 to 5, characterized characterized in that the housing has several chambers. 7. Deformationselement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Konfiguration des Gehäuses der gewünschten Verformung angepaßt ist.7. Deformation element according to one of claims 1 to 6, characterized characterized in that the configuration of the housing of the desired Deformation is adjusted. 8. Deformationselement nach Anspruch 7, dadurch gekennzeichnet, daß die Wanddicke des Gehäuses variierend ausgebildet ist.8. Deformation element according to claim 7, characterized in that the wall thickness of the housing is designed to vary. 9. Deformationselement nach Anspruch 7, dadurch gekennzeichnet, daß das Gehäuses als Faltenbalg ausgebildet ist.9. Deformation element according to claim 7, characterized in that the housing is designed as a bellows.
DE19502307A 1994-04-08 1995-01-26 Energy absorbing deformation element for protection of vehicle bodywork Withdrawn DE19502307A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19502307A DE19502307A1 (en) 1994-04-08 1995-01-26 Energy absorbing deformation element for protection of vehicle bodywork

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9405874U DE9405874U1 (en) 1994-04-08 1994-04-08 Energy absorbing deformation element to protect the vehicle body
DE19502307A DE19502307A1 (en) 1994-04-08 1995-01-26 Energy absorbing deformation element for protection of vehicle bodywork

Publications (1)

Publication Number Publication Date
DE19502307A1 true DE19502307A1 (en) 1995-10-19

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DE9405874U Expired - Lifetime DE9405874U1 (en) 1994-04-08 1994-04-08 Energy absorbing deformation element to protect the vehicle body
DE19502307A Withdrawn DE19502307A1 (en) 1994-04-08 1995-01-26 Energy absorbing deformation element for protection of vehicle bodywork

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DE (2) DE9405874U1 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721608A1 (en) * 1997-05-23 1998-11-26 Daimler Benz Ag Energy absorbing element
DE19924617A1 (en) * 1999-05-28 2000-11-30 Volkswagen Ag Crash energy absorbing device for vehicle, including deformation chamber with gas generator and foam producing material
DE19940361A1 (en) * 1999-08-25 2001-03-01 Abb Patent Gmbh Power cable sealing end for cable connection, has slide valve and/or high voltage electrode made of aluminium foam
WO2001034447A1 (en) * 1999-11-06 2001-05-17 Siemens Duewag Schienenfahrzeuge Gmbh Energy absorption device for a rail vehicle
EP1256490A3 (en) * 2001-05-11 2003-06-04 Benteler Automobiltechnik GmbH & Co. KG Combination of a bumper and crashboxes
WO2003080398A1 (en) * 2002-03-26 2003-10-02 Valeo Thermique Moteur Bumper beam with shock absorber for motor vehicle
FR2842152A1 (en) 2002-07-15 2004-01-16 Peugeot Citroen Automobiles Sa Automobile bumper bar frame fixed to side frame comprises transverse beam and shock absorber element comprising block of shock absorber material interposed between beam and side frame
DE10239933A1 (en) * 2002-08-30 2004-03-18 Daimlerchrysler Ag Impact protection device for motor vehicle has variable volume chamber for impact-type force applications, and damping bellows installed between force application means and structure of vehicle
US6854506B2 (en) 2001-05-16 2005-02-15 Goldschmidt Ag Process for producing shaped metal parts
EP1510411A1 (en) * 2003-08-29 2005-03-02 Euromotive Gesellschaft m.b.H. & Co. KG Bumper for a motor vehicle
US6874562B2 (en) 2001-06-07 2005-04-05 Goldschmidt Ag Process for producing metal/metal foam composite components
FR2894206A1 (en) * 2005-12-02 2007-06-08 Peugeot Citroen Automobiles Sa Energy absorption device for bumper of motor vehicle, has beam carrying shell containing row of spheres, where rigidity of shell and spheres is modulable based on geometry and size of impactor
DE102006026447A1 (en) * 2006-06-07 2007-12-27 Daimlerchrysler Ag Impact absorber for use in vehicle body, has foam structure where rigidity is variably controlled by crash sensor system and foam is made of polymer with pores filled with fluid medium
DE102008049483A1 (en) 2008-09-29 2010-04-01 Daimler Ag Crash-box for motor vehicle body for attachment between two elements of carrying structure of motor vehicle, has foam-like deformable and energy absorbing component connected with another component
DE102011009943A1 (en) 2010-02-01 2011-08-04 Faurecia Exteriors GmbH, 91781 Energy absorption system
CN106043183A (en) * 2016-07-29 2016-10-26 奇瑞新能源汽车技术有限公司 Vehicle front anticollision beam assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540787B4 (en) * 1995-11-02 2005-06-30 Wagon Automotive Gmbh Impact absorber and method for its production
DE19746478C2 (en) * 1997-10-22 2002-11-07 Ise Gmbh Process for producing a bending beam from a metallic multi-chamber profile
DE19831708A1 (en) * 1998-07-15 2000-01-27 Ise Gmbh Bumper arrangement for motor vehicle has transverse support located directly behind its plastic covering, and two spar-form deformation elements fix transverse support on longitudinal support of vehicle's body and form crush zone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241108A1 (en) * 1991-12-16 1993-06-17 Volkswagen Ag Deformation element partic. for road vehicle - which works according to collar principle and in central deformation area is of non-reinforced thermoplastic material
JPH05330450A (en) * 1992-05-29 1993-12-14 Kobe Steel Ltd Impact beam
DE4239460A1 (en) * 1992-11-24 1994-05-26 Austria Metall Ag Braunau Impact absorbing device for vehicle - has plastically deformable hollow body between bumper and frame

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241108A1 (en) * 1991-12-16 1993-06-17 Volkswagen Ag Deformation element partic. for road vehicle - which works according to collar principle and in central deformation area is of non-reinforced thermoplastic material
JPH05330450A (en) * 1992-05-29 1993-12-14 Kobe Steel Ltd Impact beam
DE4239460A1 (en) * 1992-11-24 1994-05-26 Austria Metall Ag Braunau Impact absorbing device for vehicle - has plastically deformable hollow body between bumper and frame

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721608A1 (en) * 1997-05-23 1998-11-26 Daimler Benz Ag Energy absorbing element
FR2763659A1 (en) * 1997-05-23 1998-11-27 Daimler Benz Ag ELEMENT USING METAL FOAM TO ABSORB SHOCK ENERGY
DE19721608C2 (en) * 1997-05-23 2002-03-07 Daimler Chrysler Ag Energy absorbing element
DE19924617A1 (en) * 1999-05-28 2000-11-30 Volkswagen Ag Crash energy absorbing device for vehicle, including deformation chamber with gas generator and foam producing material
DE19924617B4 (en) * 1999-05-28 2007-10-11 Volkswagen Ag Energy absorption device on a motor vehicle for a crash case
DE19940361A1 (en) * 1999-08-25 2001-03-01 Abb Patent Gmbh Power cable sealing end for cable connection, has slide valve and/or high voltage electrode made of aluminium foam
WO2001034447A1 (en) * 1999-11-06 2001-05-17 Siemens Duewag Schienenfahrzeuge Gmbh Energy absorption device for a rail vehicle
EP1097853A3 (en) * 1999-11-06 2002-01-02 Siemens Duewag Schienenfahrzeuge GmbH Energy absorbing device for a railway vehicle, especially vehicle for regional transit
EP1256490A3 (en) * 2001-05-11 2003-06-04 Benteler Automobiltechnik GmbH & Co. KG Combination of a bumper and crashboxes
US6854506B2 (en) 2001-05-16 2005-02-15 Goldschmidt Ag Process for producing shaped metal parts
US6874562B2 (en) 2001-06-07 2005-04-05 Goldschmidt Ag Process for producing metal/metal foam composite components
WO2003080398A1 (en) * 2002-03-26 2003-10-02 Valeo Thermique Moteur Bumper beam with shock absorber for motor vehicle
FR2837762A1 (en) 2002-03-26 2003-10-03 Valeo Thermique Moteur Sa BUMPER BEAM WITH ENERGY ABSORBER FOR MOTOR VEHICLE
FR2842152A1 (en) 2002-07-15 2004-01-16 Peugeot Citroen Automobiles Sa Automobile bumper bar frame fixed to side frame comprises transverse beam and shock absorber element comprising block of shock absorber material interposed between beam and side frame
DE10239933A1 (en) * 2002-08-30 2004-03-18 Daimlerchrysler Ag Impact protection device for motor vehicle has variable volume chamber for impact-type force applications, and damping bellows installed between force application means and structure of vehicle
EP1510411A1 (en) * 2003-08-29 2005-03-02 Euromotive Gesellschaft m.b.H. & Co. KG Bumper for a motor vehicle
FR2894206A1 (en) * 2005-12-02 2007-06-08 Peugeot Citroen Automobiles Sa Energy absorption device for bumper of motor vehicle, has beam carrying shell containing row of spheres, where rigidity of shell and spheres is modulable based on geometry and size of impactor
DE102006026447A1 (en) * 2006-06-07 2007-12-27 Daimlerchrysler Ag Impact absorber for use in vehicle body, has foam structure where rigidity is variably controlled by crash sensor system and foam is made of polymer with pores filled with fluid medium
DE102006026447B4 (en) * 2006-06-07 2012-08-16 Daimler Ag Method for variably adjusting the stiffness of impact absorbers for motor vehicle bodies
DE102008049483A1 (en) 2008-09-29 2010-04-01 Daimler Ag Crash-box for motor vehicle body for attachment between two elements of carrying structure of motor vehicle, has foam-like deformable and energy absorbing component connected with another component
DE102011009943A1 (en) 2010-02-01 2011-08-04 Faurecia Exteriors GmbH, 91781 Energy absorption system
WO2011092342A1 (en) 2010-02-01 2011-08-04 Faurecia Exteriors Gmbh Energy-absorption system
US8585106B2 (en) 2010-02-01 2013-11-19 Faurecia Exteriors Gmbh Energy-absorption system
CN106043183A (en) * 2016-07-29 2016-10-26 奇瑞新能源汽车技术有限公司 Vehicle front anticollision beam assembly

Also Published As

Publication number Publication date
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