DE19540787B4 - Impact absorber and method for its production - Google Patents
Impact absorber and method for its production Download PDFInfo
- Publication number
- DE19540787B4 DE19540787B4 DE1995140787 DE19540787A DE19540787B4 DE 19540787 B4 DE19540787 B4 DE 19540787B4 DE 1995140787 DE1995140787 DE 1995140787 DE 19540787 A DE19540787 A DE 19540787A DE 19540787 B4 DE19540787 B4 DE 19540787B4
- Authority
- DE
- Germany
- Prior art keywords
- steel sheet
- hollow profile
- hollow
- impact
- profile
- 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.)
- Expired - Fee Related
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
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- 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
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- 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
- B62D21/152—Front or rear frames
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
Aufpralldämpfer für Kraftfahrzeuge mit
folgenden Merkmalen:
a) Der Aufpralldämpfer (7; 17; 18) ist ein durch
Rollumformen eines Stahlbleches hergestelltes einteiliges Hohlprofil.
b)
Das Hohlprofil (7; 17; 18) enthält
nur eine sich in Längsrichtung
erstreckende Hohlkammer (8; 14).
c) Die beiden seitlichen Enden
(9, 10) des Stahlbleches stehen von dem Profilkörper im übrigen nach außen ab und sind
durch Verschweißen,
Falzen, Nieten oder Druckfügen miteinander
verbunden.
d) Das das Hohlprofil (7; 17; 18) bildende Stahlblech
ist an einer zu der von den verbundenen Enden (9, 10) gebildeten Verbindungslinie
symmetrisch angeordneten Linie mit einer ebenfalls in Längsrichtung
verlaufenden Rollfalz (12) versehen.Impact absorbers for motor vehicles having the following features:
a) The impact damper (7; 17; 18) is a one-piece hollow profile produced by roll forming a steel sheet.
b) The hollow profile (7; 17; 18) contains only one longitudinally extending hollow chamber (8; 14).
c) The two lateral ends (9, 10) of the steel sheet are from the profile body in the rest to the outside and are connected by welding, folding, riveting or pressure joining together.
d) The steel sheet forming the hollow profile (7; 17; 18) is provided at a line symmetrically arranged with respect to the connecting line formed by the connected ends (9, 10) with a likewise rolling longitudinal fold (12).
Description
Die Erfindung betrifft einen Aufpralldämpfer für Kraftfahrzeuge. Die Erfindung bezieht sich ferner auf ein Verfahren zur Herstellung derartiger Aufpralldämpfer.The The invention relates to a crash cushion for motor vehicles. The invention further relates to a method for producing such Crash cushion.
Üblicherweise werden als Aufpralldämpfer (Crashboxen) bei Kraftfahrzeugen gestanzte Profile verwendet, die teilweise zusätzlich mit Versteifungsblechen versehen werden. Die Herstellung derartiger Bauelemente ist außerordentlich aufwendig.Usually be used as impact absorbers (crash boxes) used in motor vehicles stamped profiles, some in addition to Stiffening plates are provided. The production of such components is extraordinary consuming.
Aus der WO 94/27841 A1 ist ein Aufpralldämpfer bekannt, der aus einem Aluminium-Hohlprofil besteht, welches mittels Strangpressens hergestellt wird. Der Nachteil derartiger Profile besteht einerseits darin, daß ihre Herstellung relativ aufwendig und damit teuer ist. Andererseits lassen sich aus verfahrenstechnischen Gründen in der Regel nur Profile strangpressen, die eine Mindestwandstärke von mehr als 1 mm aufweisen. Besonders bei kleineren Fahrzeugen kann es aber ausreichen, Aufpralldämpfer zu verwenden, die eine Wandstärke besitzen, die kleiner 1 mm (z.B. von 0,8 mm) ist.Out WO 94/27841 A1 discloses an impact absorber, which consists of a Aluminum hollow profile is made by extrusion becomes. The disadvantage of such profiles is, on the one hand, that theirs Production is relatively complicated and therefore expensive. on the other hand For procedural reasons, as a rule, only profiles can be extruded, the one minimum wall thickness of more than 1 mm. Especially for smaller vehicles but it may be sufficient to use impact absorbers, the one Wall thickness which is less than 1 mm (e.g., 0.8 mm).
Die
Aus der Zeitschrift "Automobil Revue" Nr. 37/1993, Seite 31 ist ein aus Aluminium Strangpreßprofilen bestehender Karosserierahmen bekannt, bei dem Anbauteile durch Stanznieten befestigt werden.Out the magazine "Automobile Revue "No. 37/1993, Page 31 is a body frame made of extruded aluminum sections known, are attached to the attachments by punch riveting.
Aus
der
Schließlich ist
aus der
Der Erfindung liegt die Aufgabe zugrunde, einen Aufpralldämpfer der eingangs erwähnten Art anzugeben, welcher auf einfache und kostengünstige Weise herstellbar ist und trotz eines geringen Gewichtes eine ausreichende Stabilität besitzt. Ferner soll ein Verfahren zur Herstellung eines derartigen Aufpralldämpfers offenbart werden.Of the Invention is based on the object, a crash cushion of mentioned in the beginning Specify type, which can be produced in a simple and cost-effective manner and despite a low weight has sufficient stability. Furthermore, a method for producing such an impact damper is disclosed become.
Diese Aufgabe wird hinsichtlich des Aufpralldämpfers erfindungsgemäß durch die Merkmale des Anspruchs 1 und hinsichtlich des Verfahrens durch die Merkmale des Anspruchs 6 gelöst. Weitere, besonders vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche.These Task is according to the invention with respect to the crash cushion the features of claim 1 and in terms of the method by the Characteristics of claim 6 solved. Further, particularly advantageous embodiments of the invention reveal the dependent claims.
Die Erfindung beruht im wesentlichen auf dem Gedanken, als Aufpralldämpfer ein mittels Rollprofiltechnik (Roll-Umformen) hergestelltes Hohlprofil zu verwenden, welches nur eine Hohlkammer aufweist und aus Stahlblech besteht. Dabei sind die seitlichen Enden der Bleche nach außen gerichtet, so daß sie auf einfache Weise, beispielsweise durch Verschweißen, Falzen, Nieten, Druckfügen u. dgl., miteinander verbindbar sind.The The invention is based essentially on the idea as an impact absorber by means of Rollprofiltechnik (roll forming) produced hollow profile too use, which has only one hollow chamber and made of sheet steel consists. The lateral ends of the sheets are directed outwards, so that you in a simple manner, for example by welding, folding, Riveting, press-joining u. Like., Can be connected to each other.
Vorteilhafterweise kann das Hohlprofil mit mindestens einer in Längsrichtung sich erstreckenden Rollfalz versehen sein, an welcher entweder Anbauteile (Hupe, Kühler etc.) befestigt werden können oder mit der das Aufprallverhalten des Längsträgers bzw. eines entsprechenden Aufpralldämpfers optimierbar ist.advantageously, can the hollow profile with at least one extending in the longitudinal direction Rollfalz be provided on which either attachments (horn, radiator, etc.) can be attached or with the impact behavior of the longitudinal member or a corresponding impact attenuator is optimizable.
Ein besonderer Vorteil der Verwendung von Stahlblech besteht darin, daß auf einfache Weise beinahe beliebige Formen für die unterschiedlichsten Funktionen in das Blech hineingerollt werden können. Demgegenüber sind die im Handel erhältlichen Stahl-Hohlprofile nur in wenigen Querschnittsformen lieferbar, so daß ein Hersteller für Aufpralldämpfer aus derartigen Profilen hinsichtlich der Gestaltungsfreiheit stark eingeschränkt ist.One particular advantage of the use of steel sheet is that on simple way almost any shapes for a variety of functions can be rolled into the sheet. In contrast, are the commercially available steel hollow profiles only available in a few cross-sectional shapes, so that one manufacturer for impact absorbers Such profiles are severely limited in terms of design freedom.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen, die jeweils durch Roll-Umformen hergestellte Aufpralldämpfer, welche an einem Querträger (Stoßstange) befestigt sind, wiedergeben. Es zeigen:Further Details and advantages of the invention will become apparent from the following explained with reference to figures Embodiments, each produced by roll forming impact absorbers, which on a crossbeam (Bumper) are attached, play. Show it:
In
Der
jeweilige Aufpralldämpfer
In
Schließlich sind
in den
Bei
dem in
Die Erfindung ist selbstverständlich nicht auf die vorstehend beschriebenen Ausführungsbeispiele beschränkt. Vielmehr kön nen die Querschnittsformen der Hohlkammern auch andere nicht dargestellte Formen aufweisen. Außerdem kann die Hohlkammer des gerollten Hohlprofiles mindestens teilweise mit einem energieabsorbierenden Schaum (z.B. PU-Schaum) ausgefüllt sein, um ein geschwindigkeitsabhängiges Aufprallverhalten des Fahrzeuges zu realisieren.The Invention is self-evident not limited to the embodiments described above. Much more can the cross-sectional shapes of the hollow chambers and other not shown Shapes have. Furthermore can the hollow chamber of the rolled hollow profile at least partially with an energy-absorbing foam (e.g., PU foam) to provide velocity-dependent impact performance to realize the vehicle.
- 11
- Querträgercrossbeam
- 22
- Aufpralldämpfer, HohlprofilImpact absorber, hollow profile
- 33
- Hohlkammerhollow
- 4,54.5
- Blechendensheet ends
- 66
- Profilkörperprofile body
- 77
- Aufpralldämpfer, HohlprofilImpact absorber, hollow profile
- 88th
- Hohlkammerhollow
- 9,109.10
- Blechendensheet ends
- 1111
- Längsrichtunglongitudinal direction
- 1212
- Rollfalzroll seam
- 1313
- Aufpralldämpfer, HohlprofilImpact absorber, hollow profile
- 1414
- Hohlkammerhollow
- 15,1615.16
- Blechendensheet ends
- 1717
- Aufpralldämpfer, HohlprofilImpact absorber, hollow profile
- 1818
- Aufpralldämpfer, HohlprofilImpact absorber, hollow profile
- 1919
- Klammerclip
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995140787 DE19540787B4 (en) | 1995-11-02 | 1995-11-02 | Impact absorber and method for its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995140787 DE19540787B4 (en) | 1995-11-02 | 1995-11-02 | Impact absorber and method for its production |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19540787A1 DE19540787A1 (en) | 1997-05-07 |
DE19540787B4 true DE19540787B4 (en) | 2005-06-30 |
Family
ID=7776410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995140787 Expired - Fee Related DE19540787B4 (en) | 1995-11-02 | 1995-11-02 | Impact absorber and method for its production |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19540787B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105263761A (en) * | 2013-06-06 | 2016-01-20 | 丰田铁工株式会社 | Crush box |
CN111661158A (en) * | 2020-06-09 | 2020-09-15 | 安徽江淮汽车集团股份有限公司 | Longitudinal beam structure and automobile |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19924617B4 (en) * | 1999-05-28 | 2007-10-11 | Volkswagen Ag | Energy absorption device on a motor vehicle for a crash case |
US6523885B2 (en) * | 2000-05-29 | 2003-02-25 | Benteler Ag | Deformation member |
EP1256490A3 (en) * | 2001-05-11 | 2003-06-04 | Benteler Automobiltechnik GmbH & Co. KG | Combination of a bumper and crashboxes |
DE10309627B4 (en) * | 2003-03-04 | 2008-09-25 | Audi Ag | Support structure of a motor vehicle with a front longitudinal support having front support structure |
DE10339949A1 (en) * | 2003-08-29 | 2005-03-31 | Euromotive Ges.M.B.H. & Co. Kg | Bumper for a motor vehicle |
DE102004029737C5 (en) * | 2004-06-19 | 2012-10-18 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Roll formed roof hoop and method for its manufacture |
DE102005029738B4 (en) | 2005-06-24 | 2018-10-04 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Energy absorber element and this vehicle body using |
DE102006026447B4 (en) * | 2006-06-07 | 2012-08-16 | Daimler Ag | Method for variably adjusting the stiffness of impact absorbers for motor vehicle bodies |
JP4872541B2 (en) * | 2006-08-31 | 2012-02-08 | マツダ株式会社 | Automotive bumper structure |
DE102007030461B4 (en) | 2007-06-29 | 2019-04-18 | Iveco Magirus Ag | Carrier profile for the construction of a commercial vehicle |
DE102008020694B4 (en) * | 2008-04-24 | 2012-11-22 | Benteler Automobiltechnik Gmbh | Motor vehicle frame |
EP2531380B1 (en) | 2010-02-01 | 2015-04-08 | Faurecia Exteriors GmbH | Energy-absorption system |
CN106764389B (en) * | 2016-12-14 | 2020-07-31 | 安徽鑫铂铝业股份有限公司 | Electric scooter aluminium alloy |
CN109484346A (en) * | 2018-10-23 | 2019-03-19 | 华侨大学 | Truck tail anti-collision structure |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555196A1 (en) * | 1975-12-09 | 1977-06-23 | Porsche Ag | CARRIERS, IN PARTICULAR LONGITUDINAL CARRIERS FOR ENERGY ABSORPTION |
DE4028164A1 (en) * | 1990-07-17 | 1992-01-23 | Schneider Gesenkschmiede | IMPACT DAMPER |
DE4224489A1 (en) * | 1992-07-24 | 1994-01-27 | Audi Ag | Light metal extruded section for front longitudinal beam in motor vehicle - consists of hollow profile divided into two even chambers by flat longitudinal wall |
DE4240237A1 (en) * | 1992-11-30 | 1994-06-01 | Gkn Automotive Ag | Impact absorbing tube section - has different cross=sections each side of weakening groove to provide telescopic action after shearing at groove |
DE4300398A1 (en) * | 1993-01-09 | 1994-07-14 | Vaw Ver Aluminium Werke Ag | Mfr. of motor vehicle body |
DE9405874U1 (en) * | 1994-04-08 | 1995-08-03 | Gerhardi & Cie GmbH & Co KG, 58511 Lüdenscheid | Energy absorbing deformation element to protect the vehicle body |
-
1995
- 1995-11-02 DE DE1995140787 patent/DE19540787B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555196A1 (en) * | 1975-12-09 | 1977-06-23 | Porsche Ag | CARRIERS, IN PARTICULAR LONGITUDINAL CARRIERS FOR ENERGY ABSORPTION |
DE4028164A1 (en) * | 1990-07-17 | 1992-01-23 | Schneider Gesenkschmiede | IMPACT DAMPER |
DE4224489A1 (en) * | 1992-07-24 | 1994-01-27 | Audi Ag | Light metal extruded section for front longitudinal beam in motor vehicle - consists of hollow profile divided into two even chambers by flat longitudinal wall |
DE4240237A1 (en) * | 1992-11-30 | 1994-06-01 | Gkn Automotive Ag | Impact absorbing tube section - has different cross=sections each side of weakening groove to provide telescopic action after shearing at groove |
DE4300398A1 (en) * | 1993-01-09 | 1994-07-14 | Vaw Ver Aluminium Werke Ag | Mfr. of motor vehicle body |
DE9405874U1 (en) * | 1994-04-08 | 1995-08-03 | Gerhardi & Cie GmbH & Co KG, 58511 Lüdenscheid | Energy absorbing deformation element to protect the vehicle body |
Non-Patent Citations (1)
Title |
---|
Automobil Revue Nr. 37/1993, S. 31 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105263761A (en) * | 2013-06-06 | 2016-01-20 | 丰田铁工株式会社 | Crush box |
CN111661158A (en) * | 2020-06-09 | 2020-09-15 | 安徽江淮汽车集团股份有限公司 | Longitudinal beam structure and automobile |
Also Published As
Publication number | Publication date |
---|---|
DE19540787A1 (en) | 1997-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: WAGON AUTOMOTIVE GMBH, 63857 WALDASCHAFF, DE |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |