DE2813266C3 - Bumper for a motor vehicle - Google Patents
Bumper for a motor vehicleInfo
- Publication number
- DE2813266C3 DE2813266C3 DE19782813266 DE2813266A DE2813266C3 DE 2813266 C3 DE2813266 C3 DE 2813266C3 DE 19782813266 DE19782813266 DE 19782813266 DE 2813266 A DE2813266 A DE 2813266A DE 2813266 C3 DE2813266 C3 DE 2813266C3
- Authority
- DE
- Germany
- Prior art keywords
- support body
- cladding
- bumper
- face
- motor vehicle
- 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
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
- B60R19/18—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
- B60R19/18—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
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
- B60R2019/1853—Structural beams therefor, e.g. shock-absorbing made of plastic material of reinforced plastic 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
-
- 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
- B60R2019/1886—Bumper fascias and fastening means therefor
Description
Die Erfindung betrifft einen Stoßfänger für einen Kraftwagen, mit einem horizontal gepfeilten, im Querschnitt etwa U-Profil aufweisenden Tragkörper aus faserverstärktem Kunststoff, wobei die Stirnseite des Tragkörpers durch den Steg des U-Profils gebildet istThe invention relates to a bumper for a motor vehicle, with a horizontally swept, im Cross-section approximately having a U-profile support body made of fiber-reinforced plastic, with the end face of the support body is formed by the web of the U-profile
Festigkeitsuntersuchungen eines derartigen Stoßfängers, wie er durch die DE-OS 26 50081 zum Stand der Technik gehört haben ergeben, daß seine Belastbarkeit in starkem Maße von der Art der Krafteinleitung und deren Ort abhängt Die Flichenpressung bei Belastung der Pfeilspitze erreicht dabei leicht einen derart hohen Wert daß der Stoßfänger bereite vor dem Erreichen der theoretisch möglichen Biegebeanspruchung versagtStrength tests of such a bumper, as he by the DE-OS 26 50 081 to the state of Heard technology have shown that its resilience depends to a large extent on the type of force application and the location of which depends. The pressure on the arrowhead under load can easily reach such a high level Worth having the bumper ready before reaching the theoretically possible bending stress fails
Es ist Aufgabe der Erfindung, einen Stoßfänger der eingangs genannten Art so zu gestalten, daß dieser auch bei mittiger Krafteinleitung bis zu seiner theoretisch möglichen Biegebelastung beansprucht werden kann, ohne daß bleibende Veränderungen am Tragkörper auftreten.It is the object of the invention to design a bumper of the type mentioned in such a way that it also with central application of force, it can be stressed up to its theoretically possible bending load, without permanent changes occurring on the support body.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst daß der Pfeilungswinkel des Tragkörpers derart bemessen ist daß bei der vorbestimmten maximal zulässigen Durchbiegung des Tragkörpers dessen Stirnseite horizontal im wesentlichen geradlinig verläuft Dadurch vergrößert sich die Krafteinleitungsfläehe bei der Beaufschlagung durch ein relativ ebenes Hindernis wesentlich und tritt eine Reduzierung der Flächenpressung auf.This object is achieved according to the invention in that the sweep angle of the support body is such is dimensioned that at the predetermined maximum permissible deflection of the support body The front face runs essentially in a straight line horizontally. This increases the force application area when acted upon by a relatively flat obstacle is essential and there is a reduction in the Surface pressure.
Wenn der Stoßfänger mit einer dem Tragkörper zumindest stirnseitig vorgelagerten Verkleidung ausIf the bumper is made up of a cladding that is positioned in front of the support body at least on the front side
ίο elastischem Material, z.B. Polyurethan versehen ist kann gemäß einer Ausgestaltung der Erfindung durch unterschiedliche Materialstärke der Verkleidung und/ oder durch Hohlräume zwischen der Stirnseite des Tragkörpers und der Verkleidung für die Verkleidungίο elastic material, e.g. polyurethane can according to one embodiment of the invention through different material thicknesses of the cladding and / or through cavities between the end face of the support body and the cladding for the cladding
is ein anderer Pfeilungswinkel als für den Tragkörper vorgesehen sein. Dabei können nach einem weiterenis a different sweep angle than for the supporting body be provided. After another
anhand eines in der Zeichnung dargestellten Ausführungsbeispiels erläutert In der Zeichnung zeigtexplained on the basis of an exemplary embodiment shown in the drawing
Fig. 1 eine Draufsicht auf einen schematisch dargestellten erfindungsgemäßen Stoßfänger undFig. 1 is a plan view of a shown schematically bumper according to the invention and
linie H-II in F i g. 1.line H-II in Fig. 1.
Ein Stoßfänger mit einem gepfeilt ausgebildeten Tragkörper 1. der im Querschnitt U-Profil aufweist und aus einem faserverstärkten Kunststoff besteht ist an seiner Oberseite 2 mit einer dekorativen Blende 3 versehen, an die sich eine Verkleidung 4 aus elastischem Kunststoff anschließt die sich in nicht dargestellter Weise nach unten hin als Schürze erstrecktA bumper with an arrow-shaped support body 1. which has a U-profile in cross section and consists of a fiber-reinforced plastic is on its upper side 2 with a decorative panel 3 provided, which is followed by a cladding 4 made of elastic plastic, which is not shown Way downwards as an apron extends
Der Pfeilungswinkel α des Tragkörpers 1 ist so bemessen, daß dessen Stirnseite S bei der maximal zulässigen Durchbiegung des Tragkörpers 1 im wesentlichen geradlinig verläuft wie dies in F i g. 1 durch eine strichpunktierte Linie angedeutet ist Besteht von der Stilistik her die Forderung, die Pfeilung des Stoßfängers zu vergrößern, so kann dies leicht dadurch geschehen, daß die Wandstärke der Verkleidung 4 im mittleren Bereich entsprechend vergrößert wird oder daß zwischen der Stirnseite S des Tragkörpers 1 und der Verkleidung 4 ein Hohlraum 6 geschaffen wird. Dieser Hohlraum 6 kann bei Bedarf ausgeschäumt werden, wodurch wegen der verbleibenden weichen Zone in diesem Bereich ein verbesserter Fußgängerschutz erreicht wird.The sweep angle α of the support body 1 is dimensioned so that its end face S at the maximum permissible deflection of the support body 1 runs essentially in a straight line, as shown in FIG. 1 indicated by a dash-dotted line is there, in terms of style, the requirement that the To enlarge the bumper, this can easily be done in that the wall thickness of the cladding 4 in the middle area is increased accordingly or that between the end face S of the support body 1 and the Cladding 4 a cavity 6 is created. This cavity 6 can be filled with foam if necessary, whereby, because of the remaining soft zone in this area, improved pedestrian protection is achieved.
Bei einem gepfeilt ausgebildeten Tragkörper 1 gemäß der Erfindung kann durch Verdickung der EndbereicheIn the case of an arrow-shaped support body 1 according to the invention, thickening of the end regions
so der Verkleidung 4 oder durch Schaffung von Hohlräumen zwischen der Verkleidung 4 und dem Tragkörper 1 in diesen Endbereichen der Eindruck eines geradlinig verlaufenden Stoßfängers erreicht werden.so the cladding 4 or by creating cavities between the cladding 4 and the support body 1 in these end areas the impression of a straight bumper can be achieved.
Claims (3)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782813266 DE2813266C3 (en) | 1978-03-28 | 1978-03-28 | Bumper for a motor vehicle |
FR7907513A FR2421086A1 (en) | 1978-03-28 | 1979-03-26 | VEHICLE BUMPERS |
GB7910484A GB2018944B (en) | 1978-03-28 | 1979-03-26 | Vehicle bumper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782813266 DE2813266C3 (en) | 1978-03-28 | 1978-03-28 | Bumper for a motor vehicle |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2813266A1 DE2813266A1 (en) | 1979-10-11 |
DE2813266B2 DE2813266B2 (en) | 1981-06-11 |
DE2813266C3 true DE2813266C3 (en) | 1982-02-18 |
Family
ID=6035544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782813266 Expired DE2813266C3 (en) | 1978-03-28 | 1978-03-28 | Bumper for a motor vehicle |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2813266C3 (en) |
FR (1) | FR2421086A1 (en) |
GB (1) | GB2018944B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3639195A1 (en) * | 1986-11-15 | 1988-05-26 | Daimler Benz Ag | BUMPER FOR A VEHICLE |
GB2271967B (en) * | 1992-11-02 | 1996-10-23 | Honda Motor Co Ltd | Automobile bumper and injection mold for forming such automobile bumper |
CN104827998A (en) * | 2015-04-21 | 2015-08-12 | 长春工业大学 | Elastic bumper |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3638985A (en) * | 1969-06-26 | 1972-02-01 | Ford Motor Co | Energy absorbing bumper |
JPS49118131A (en) * | 1973-03-19 | 1974-11-12 | ||
US3866963A (en) * | 1973-08-13 | 1975-02-18 | Mccord Corp | Energy absorbing bumper assembly |
US3869167A (en) * | 1973-10-01 | 1975-03-04 | Ford Motor Co | Resilient bumper assembly |
-
1978
- 1978-03-28 DE DE19782813266 patent/DE2813266C3/en not_active Expired
-
1979
- 1979-03-26 GB GB7910484A patent/GB2018944B/en not_active Expired
- 1979-03-26 FR FR7907513A patent/FR2421086A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2018944A (en) | 1979-10-24 |
FR2421086A1 (en) | 1979-10-26 |
FR2421086B1 (en) | 1981-09-11 |
DE2813266B2 (en) | 1981-06-11 |
DE2813266A1 (en) | 1979-10-11 |
GB2018944B (en) | 1982-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
C3 | Grant after two publication steps (3rd publication) | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |