US20030085588A1 - Deformation element, in particular for use in motor vehicles - Google Patents

Deformation element, in particular for use in motor vehicles Download PDF

Info

Publication number
US20030085588A1
US20030085588A1 US10/280,867 US28086702A US2003085588A1 US 20030085588 A1 US20030085588 A1 US 20030085588A1 US 28086702 A US28086702 A US 28086702A US 2003085588 A1 US2003085588 A1 US 2003085588A1
Authority
US
United States
Prior art keywords
deformation element
protrusion
recess
element according
base part
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.)
Abandoned
Application number
US10/280,867
Other languages
English (en)
Inventor
Horst Schonebeck
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.)
ArvinMeritor GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to ARVINMERITOR GMBH reassignment ARVINMERITOR GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHONEBECK, HORST
Publication of US20030085588A1 publication Critical patent/US20030085588A1/en
Priority to US10/731,949 priority Critical patent/US7097234B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
    • F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
    • 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
    • B60R19/22—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 containing mainly cellular material, e.g. solid foam
    • 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
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/04—Padded linings for the vehicle interior ; Energy absorbing structures associated with padded or non-padded linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/37—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers of foam-like material, i.e. microcellular material, e.g. sponge rubber
    • 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
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or 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
    • B60R19/18—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
    • B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
    • B60R2019/1873—Cellular materials

Definitions

  • the invention relates to a deformation element, in particular for use in motor vehicles.
  • Deformation elements are used in various parts of the vehicle body, for instance bumpers, interior linings etc., in order to convert kinetic energy into plastic deformation of the material of the deformation element. In this way the negative effects of a collision, for instance between the vehicle and an obstacle, or between a body part of the vehicle occupant and the interior lining of the vehicle, are to be reduced.
  • a deformation element comprises a first base part and a second base part.
  • the first base part includes at least one protrusion which tapers starting from the first base part.
  • the second base part includes at least one recess which tapers from a front side to a rear side thereof and is associated to the protrusion.
  • This deformation element is based on the basic idea to move two parts relative to each other for energy conversion, with the one part penetrating the other and plastic deformations occurring therewith.
  • the graph of deformation force versus deformation path can be adjusted in a very easy manner by selecting the geometry of the protrusion of the first base part and of the recess in the second base part. This graph can also be influenced by the selection of the materials, of which the protrusion and the second base part are made of.
  • the protrusion has the shape of a truncated cone and that the recess likewise has the shape of a truncated cone.
  • the conical shape offers the advantage that an automatic centering will occur between the two base parts.
  • the graph of deformation force versus deformation path can be adjusted as desired.
  • the side surface of the protrusion and the middle axis of the protrusion include a larger angle as the side surface of the recess and the middle axis of the recess. In this way there will be produced a superproportionally increasing deformation force during penetration of the protrusion into the recess, because the differences in cross-section of protrusion and recess become larger with an increasing deformation path.
  • the two base parts may be configured like a plate and comprise a plurality of protrusions and recesses, respectively.
  • a sheet-like deformation element can be achieved in this way, which is able to make available a high deformation force.
  • the deformation force along the base part may also change, for instance, it may be larger on the one half than on the other. This may be used—for the application case as an impact protection for the head of an occupant—to the effect that there is provided a higher deformation force for the probable contact region with the head of a tall and correspondingly heavy vehicle occupant than for a probable contact region with the head of a smaller vehicle occupant having a correspondingly lower weight.
  • the second base part is made of a material that is softer than the material of the protrusions. This allows an easily controllable deformation behavior.
  • FIG. 1 shows in a schematic sectional view a deformation element according to the invention, in an initial state
  • FIG. 2 shows the deformation element of FIG. 1 during the energy conversion
  • FIG. 3 shows in a schematic sectional view a protrusion and a recess of the deformation element in the initial state
  • FIG. 4 shows in a schematic view the recess of FIG. 3 with the protrusion of FIG. 3 being superimposed.
  • FIG. 1 there can be seen a deformation element 5 which comprises a first base part 10 and a second base part 12 .
  • the first and second base parts are configured generally in the shape of a plate and may be arranged, for example, between a body part and a lining piece of the vehicle, or between the vehicle body and a bumper.
  • the first base part 10 is provided with a plurality of protrusions 14 in the shape of a truncated cone. Thus, they have a foot surface area G (see FIG. 3), a front face V 1 and an angle of taper ⁇ .
  • Six neighboring protrusions are provided in the embodiment shown, but there may be used a greater or smaller number of protrusions depending on the respective requirements.
  • the second base part 12 has a plurality of recesses 16 , with each of these recesses being associated to an opposing protrusion 14 of the first base part.
  • the recesses 16 each have a front surface area V 2 , a bottom area B as well as an angle of taper ⁇ .
  • the angle of taper ⁇ of the protrusion 14 is chosen so as to be larger than the angle of taper ⁇ of the recess 16 .
  • the front face V 1 of the protrusion 14 has a diameter smaller than that of the front surface area V 2 of the recess 16 .
  • the diameter of the bottom area B of the recess 16 is configured to be smaller than the diameter of the front face V 1 of the protrusion 14 .
  • the diameter of the foot surface area G of the protrusion 14 is larger than the diameter of the front surface area V 2 of the recess 16 .
  • the first base part 10 and the second base part 12 are arranged spaced from each other; this distance may be distinctly smaller than the one shown in FIG. 1.
  • the first base part 10 can be arranged relative to the second base part 12 such that the front face V 1 of the protrusion 14 lies directly opposite the front surface area V 2 of the recess 16 , or such that it already projects slightly into the recess 16 .
  • the protrusion will already project in the initial state into the recess to such an extent that the front surface area V 2 of the recess contacts the region of the protrusion with the same diameter.
  • the deformation force will increase in a superproportional manner, as the difference in cross-section of the protrusion 14 and the recess 16 becomes larger and larger with an increasing penetration depth.
  • This difference in cross-section is shown in FIG. 4 as a hatched area 18 .
  • a foamed plastics material is a particularly suitable material for the deformation element, the material for the second base part 12 being engineered so as to be softer than the material of the protrusions 14 .
  • the first and second base part respectively, may be configured as an integrated part of a foamed component of a vehicle, for instance as part of the inner lining of a vehicle roof or a vehicle door.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vibration Dampers (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Motor Or Generator Frames (AREA)
  • Actuator (AREA)
  • Connection Of Plates (AREA)
US10/280,867 2001-11-07 2002-10-25 Deformation element, in particular for use in motor vehicles Abandoned US20030085588A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/731,949 US7097234B2 (en) 2001-11-07 2003-12-10 Deformation element, in particular for use in motor vehicles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10154593.2 2001-11-07
DE10154593A DE10154593A1 (de) 2001-11-07 2001-11-07 Deformationselement, insbesondere für Kraftfahrzeuge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/731,949 Continuation US7097234B2 (en) 2001-11-07 2003-12-10 Deformation element, in particular for use in motor vehicles

Publications (1)

Publication Number Publication Date
US20030085588A1 true US20030085588A1 (en) 2003-05-08

Family

ID=7704855

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/280,867 Abandoned US20030085588A1 (en) 2001-11-07 2002-10-25 Deformation element, in particular for use in motor vehicles
US10/731,949 Expired - Fee Related US7097234B2 (en) 2001-11-07 2003-12-10 Deformation element, in particular for use in motor vehicles

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/731,949 Expired - Fee Related US7097234B2 (en) 2001-11-07 2003-12-10 Deformation element, in particular for use in motor vehicles

Country Status (5)

Country Link
US (2) US20030085588A1 (fr)
EP (1) EP1310698B1 (fr)
JP (1) JP2003202044A (fr)
DE (2) DE10154593A1 (fr)
MX (1) MXPA02010968A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050156421A1 (en) * 2003-12-20 2005-07-21 Daimlerchrysler Ag Knee impact guard for motor vehicles
CN105365725A (zh) * 2015-11-12 2016-03-02 重庆明华汽车零件有限公司 内置胶囊吸能缓冲汽车防撞杠

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10246994B3 (de) * 2002-10-02 2004-05-13 Sai Automotive Sal Gmbh Stirnwandmodul
JP4917798B2 (ja) * 2005-12-09 2012-04-18 日本オーチス・エレベータ株式会社 エレベータの緩衝器
US20070138833A1 (en) * 2005-12-20 2007-06-21 Lear Corporation Energy absorption device
US7357444B2 (en) * 2006-03-06 2008-04-15 International Automotive Components Group North America, Inc. Tunable geometry for energy absorbing foam to lower peak load during side impact
US7866716B2 (en) 2008-04-08 2011-01-11 Flex-N-Gate Corporation Energy absorber for vehicle
US8029041B2 (en) * 2008-04-12 2011-10-04 Ford Global Technologies, Llc Door trim-integrated pelvic impact energy-absorbing construction for vehicle
DE102009015182B4 (de) * 2009-03-31 2014-05-28 Benteler Automobiltechnik Gmbh Stoßfängeranordnung für ein Kraftfahrzeug
DE102010037984A1 (de) * 2010-10-05 2012-04-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Stoßfängerträger und Verfahren zur Herstellung von Stoßstangen mit Stoßdämpfung
DE102011081710B4 (de) 2011-08-29 2022-11-17 Robert Bosch Gmbh Schutzvorrichtung zum Schutz einer Traktionsbatterie von Hybrid- oder Elektrofahrzeugen
US10065587B2 (en) 2015-11-23 2018-09-04 Flex|N|Gate Corporation Multi-layer energy absorber
JP6651887B2 (ja) * 2016-02-16 2020-02-19 日本精工株式会社 ステアリング装置
KR101795236B1 (ko) 2016-04-12 2017-11-08 현대자동차주식회사 충격흡수 유닛, 충격흡수 유닛 제조방법 및 충격흡수 보강재
DE102018211876A1 (de) * 2018-07-17 2020-01-23 Bayerische Motoren Werke Aktiengesellschaft Fahrzeug-Exterieur-Komponente
JP7139026B2 (ja) * 2020-07-28 2022-09-20 本田技研工業株式会社 緩衝構造

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1507267A (fr) * 1966-11-15 1967-12-29 Union Tech De L Automobile Du Absorbeur de choc
FR1566533A (fr) * 1968-03-14 1969-05-09
DE2232836A1 (de) 1971-07-13 1973-02-01 Tubauto Vorrichtung zur absorption kinetischer energie an lenksaeulen
US3888531A (en) * 1973-03-21 1975-06-10 Straza Enterprises Ltd Frangible shock absorbing bumper
US3938841A (en) * 1973-12-07 1976-02-17 Ford Motor Company Resilient bumper assembly
US3933387A (en) * 1975-03-10 1976-01-20 General Motors Corporation Thermoformed plastic energy absorber for vehicles
US4025063A (en) 1975-08-01 1977-05-24 Midland-Ross Corporation Cushioning pad
FR2449561A2 (fr) 1979-02-23 1980-09-19 Ugine Aciers Nouveau dispositif absorbeur d'energie cinetique pour mobiles
JPS607248Y2 (ja) * 1979-09-26 1985-03-11 トヨタ自動車株式会社 車輛の衝撃吸収バンパ構造
US4386799A (en) * 1981-01-26 1983-06-07 Molnar Industries, Inc. Shock absorbing device having predictable deflection characteristics
JP2779852B2 (ja) * 1989-12-06 1998-07-23 スズキ株式会社 合成樹脂製バンパー
US5005887A (en) * 1990-04-09 1991-04-09 Davidson Textron Inc. Energy absorbing bumper fastener system
US5070905A (en) * 1990-05-29 1991-12-10 Joseph Paradis Directional flow control
DE4426291C2 (de) * 1994-07-26 2003-04-17 Fehrer F S Gmbh & Co Kg Innenverkleidung von Fahrzeugen mit einem Aufprallschutz
JP2841165B2 (ja) * 1994-08-30 1998-12-24 株式会社イノアックコーポレーション 車両用内装部材
FR2729621B1 (fr) * 1995-01-23 1997-03-14 Treves Ets Absorbeur de choc, notamment appui-tete pour siege de vehicule automobile
TR199801435T2 (xx) * 1996-01-23 1999-05-21 Redmond Sanford Tekrar kapat�labilen dozaj paketi.
US5810406A (en) * 1996-03-05 1998-09-22 The Standard Products Company Molding with improved foam attachment layer
ZA974327B (en) * 1996-06-05 1997-12-18 Rieter Automotive Int Ag Liner for motor vehicle interiors.
JP3198927B2 (ja) * 1996-07-15 2001-08-13 トヨタ自動車株式会社 エネルギー吸収部材
US5934729A (en) * 1997-03-10 1999-08-10 Ford Global Technologies, Inc. Energy-absorbing fastener system
JPH1111239A (ja) * 1997-06-24 1999-01-19 Toyota Motor Corp エネルギー吸収構造体
DE19745656C2 (de) 1997-10-16 2000-06-21 Daimler Chrysler Ag Pralldämpfer für ein Kraftfahrzeug
US6199942B1 (en) * 1998-02-04 2001-03-13 Oakwood Energy Management, Inc. Modular energy absorbing assembly
FR2777615B1 (fr) * 1998-04-15 2000-12-29 Plastic Omnium Cie Absorbeur de chocs a section ondulee et pare-chocs muni d'un tel absorbeur de chocs
US6443513B1 (en) * 1998-07-02 2002-09-03 Concept Analysis Corporation Cup bumper absorber
JP3386730B2 (ja) * 1998-11-30 2003-03-17 株式会社ネオックスラボ 中空構造物における遮断・補強具

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050156421A1 (en) * 2003-12-20 2005-07-21 Daimlerchrysler Ag Knee impact guard for motor vehicles
DE10360124A1 (de) * 2003-12-20 2005-07-28 Daimlerchrysler Ag Knieaufprallelement für Kraftfahrzeuge
CN105365725A (zh) * 2015-11-12 2016-03-02 重庆明华汽车零件有限公司 内置胶囊吸能缓冲汽车防撞杠

Also Published As

Publication number Publication date
US7097234B2 (en) 2006-08-29
US20040124622A1 (en) 2004-07-01
MXPA02010968A (es) 2004-12-06
JP2003202044A (ja) 2003-07-18
DE10154593A1 (de) 2003-05-15
EP1310698A2 (fr) 2003-05-14
EP1310698A3 (fr) 2004-01-07
DE50203815D1 (de) 2005-09-08
EP1310698B1 (fr) 2005-08-03

Similar Documents

Publication Publication Date Title
US7097234B2 (en) Deformation element, in particular for use in motor vehicles
JP4472898B2 (ja) 二輪車用衝撃吸収体
US8152218B2 (en) Integral pelvic impact energy-absorbing pre-crush protective construction for vehicle door
US6199942B1 (en) Modular energy absorbing assembly
US7367587B2 (en) Instrument panel structure for vehicles
EP2237991B1 (fr) Absorbeur d'énergie à plateaux et système de pare-chocs
US7357444B2 (en) Tunable geometry for energy absorbing foam to lower peak load during side impact
US20040174025A1 (en) Blow molded energy absorber for a vehicle front end
JP2005502523A (ja) クラッシュカンを備えたバンパービーム
JP2008526590A (ja) エネルギー吸収装置を備えたバンパシステム
CN101316740A (zh) 具有集成吸能器下杆的缓冲器系统
US20090045637A1 (en) Forward Structure of a Motor Vehicle
US20100140032A1 (en) Shock absorber for vehicle
US9656627B2 (en) Hood bumpers to absorb loading
JP2009515773A (ja) エネルギー吸収車両フェンダー
JP4298760B2 (ja) バンパーアブソーバー
KR100614287B1 (ko) 차량용 충격흡수패드
JP2009515772A (ja) エネルギー吸収車両フェンダー
EP1106443A3 (fr) Elément absorbeur de choc et élément de protection de la tête
US20030057719A1 (en) Shock absorber for a two-wheeled vehicle
JPH11129840A (ja) 衝撃吸収部材
EP0967124B1 (fr) Matériau absorbeur de chocs
JP4688661B2 (ja) 車両用衝撃吸収部材
US11505135B2 (en) Vehicle interior structure
US7204531B2 (en) Bumper beam structure for vehicles

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING PUBLICATION PROCESS