EP1603789A1 - Motor vehicle body pillar - Google Patents
Motor vehicle body pillarInfo
- Publication number
- EP1603789A1 EP1603789A1 EP04716543A EP04716543A EP1603789A1 EP 1603789 A1 EP1603789 A1 EP 1603789A1 EP 04716543 A EP04716543 A EP 04716543A EP 04716543 A EP04716543 A EP 04716543A EP 1603789 A1 EP1603789 A1 EP 1603789A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- area
- pillar
- motor vehicle
- window
- body pillar
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
Definitions
- the invention relates to a motor vehicle with a body comprising continuous body pillars according to the preamble of claim 1.
- body pillars which on the one hand form partial areas of window frames in the area above a window parapet of the body and, for example, can also form support pillars for a roof, into the lower vehicle area, for example up to the body floor.
- a pillar a small cross section of this column is desired in the upper area, particularly in the case of a front pillar which surrounds a windshield, the so-called A pillar.
- the largest possible cross section is required to stabilize the body. Therefore, the upper and lower part of the column are often made up of different parts that are welded together. This creates an increased manufacturing effort.
- a weak point is formed on the weld seam, which is particularly disadvantageous if the column as a whole is to act as part of a rollover protection for the vehicle.
- two half-shells are used which are extended in the longitudinal direction of the column to be formed and are connected to one another at longitudinal seams.
- Half-shells of this type are pressed, for example, from sheet metal, with a large amount of waste being produced by angling between the upper and lower regions, as is customary in particular in the case of an A-pillar due to the inclined windshield.
- two weld seams must be placed over the entire length of the column, which increases the manufacturing effort of the column.
- the invention is based on the problem of achieving an improvement here.
- the invention solves this problem by a motor vehicle with the features of claim 1 and by a motor vehicle with the features of claim 2, which can be implemented individually or advantageously in combination with one another, and by a manufacturing method with the features of claim 10 of advantageous embodiments of the invention, reference is made to the further claims 3 to 9 and 11 to 12.
- the kneading step enables flexible design and shape adaptation of the column to the respective requirements.
- a partial reduction in cross-section of the column in the upper region can advantageously be set, as a result of which the above-described requirements with regard to design and visual impairment can be met.
- a column formed in this way can advantageously be formed in combination with the features of claim 1 as a one-piece component right into the lower body area.
- a high level of stability is achieved, in particular, when the column is connected to a side member located in the lower body area, often also referred to as side skirts.
- a solid frame is thus formed, which can absorb and dissipate high energy, in particular in the event of a crash, by mutual force application of the frame parts. If the starting semi-finished product is a pipe, it can be bought cheaply. Waste can be largely avoided.
- FIG. 1 is a perspective view of a starting semifinished product in the form of a round tube and the kneaded semifinished product with a cross-sectional reduction in area
- FIG. 3 shows an exploded view of the component used as the A-pillar, a side sill and further body frame parts and a trim part for the upper A-pillar area,
- FIG. 4 shows the parts according to FIG. 3 in the assembled state, Fig. 5 the Tei le according to Fig. 4 in connection with further connection plates for body parts,
- FIG. 6 the parts according to FIG. 5 in preparation of further parts of a body side wall
- FIG. 7 the parts of FIG. 6 with in particular a front side member that is attached to the
- A-pillar is mounted, as well as a rear side wall area before attaching it to the supporting structure,
- Fig. 8 the side wall thus formed when attaching to a floor assembly of the body.
- a tube 1 with a round cross section is shown in the first part of the figure, which serves as the starting semi-finished product for the manufacture of a body pillar 2, here an A pillar.
- Another longitudinally extending hollow profile can also be considered as the starting semi-finished product 1.
- pipes can be manufactured very inexpensively.
- Such a tube 1 can be drawn seamlessly or be formed with a seam. Steel or a light metal alloy can be used as the material.
- a first process step the tube 1 is subjected to a kneading process, as a result of which a cross-sectional reduction can be brought about.
- the process is carried out in such a way that the resulting kneaded semi-finished product 3 is only in an upper region 4 in the installed position later column 2 is reduced in cross-section, whereas a lower region 5 in the installed position can keep its initial cross-section, at least not reduced in cross-section as much as region 4.
- Kneading can be carried out as hot or cold forming, depending on the material and degree of deformation become.
- the reduction in cross-section of the area 4 can be accompanied by an increase in its wall thickness, which improves the stability of this area 4, which often becomes part of a rollover protection in the installed position.
- the kneaded semi-finished product 3 is bent on a bending machine to form a preformed semi-finished column 6, so that the upper region 4 is angled relative to the lower region 5.
- the bend lies approximately in the plane E, in which the lower window edge lies in the later installation position.
- the curved semi-finished column 6 is formed using an internal high-pressure process in order to thereby obtain the final shape 7.
- the internal high-pressure process can run in several stages.
- the body pillar 2 thus formed has its final shape with the cross-sectional derten and angled upper area 4 obtained.
- This area 4 can be provided, for example, with a screwed or easily attachable, for example clip-on, panel 8.
- the cladding 8 does not need to have a stabilizing effect, but rather serves to optically and cover edge areas in order to mitigate the impact of pedestrians in the event of a possible accident.
- the cladding 8 can consist, for example, of pre-colored plastic or can be supplied with a lacquer together with the finished body.
- the body pillar 2 extends into the lower body area, in the exemplary embodiment it is connected to a side longitudinal member 9 located outside in the vehicle, often also referred to as a sill.
- a side longitudinal member 9 located outside in the vehicle, often also referred to as a sill.
- the sill 9 can, as shown here, be formed in several parts and comprise parts 9a, 9b, 9c lying one behind the other.
- the foot 10 of the lower area 5 of the body pillar 2 is here inserted between the sections 9a and 9b, which is not mandatory. It would also be possible to place the body pillar 2 on the sill 9 or to connect it only indirectly.
- the longitudinal extent L of the lower region 5 of the column 2 is greater as its transverse extension Q, which corresponds to the width of the rocker panel sections 9a and 9b.
- a further body pillar 11 is shown in FIGS. 3 ff.
- the vehicle is a convertible vehicle, so that the B-pillar 11 ends with its upper end at the level E of the lower window edge.
- the B-pillar 11 therefore does not have to be designed according to the invention. However, this would be possible if a B-pillar and / or a further pillar extended to the vehicle roof.
- a vehicle with body pillars 2 according to the invention can therefore be both a closed and a Targa or cabriolet vehicle.
- Direction of travel F forward-facing side member 12 is used, which is supported on the lower, cross-sectional area 5 of the body pillar 2 and on the side skirts 9.
- the mounting of a rear wheel house 13 can be seen in FIG. 6.
- the substantially complete side wall 14 of the vehicle is completed by attaching a rear side part 15.
- This side wall 14 can then (FIG. 8) be connected to a floor assembly 16.
- opposite side walls 14, of which only the left one is shown in FIG. 8 is connected to one another via other components running transversely to the vehicle, such as an upper frame part of a front windshield frame, which also serves as a roll bar.
- the column 2 has been manufactured as a stable and dimensionally accurate component with little manufacturing effort and without joining seams over its extent.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10309955 | 2003-03-07 | ||
DE2003109955 DE10309955A1 (en) | 2003-03-07 | 2003-03-07 | motor vehicle |
PCT/DE2004/000401 WO2004078563A1 (en) | 2003-03-07 | 2004-03-03 | Motor vehicle body pillar |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1603789A1 true EP1603789A1 (en) | 2005-12-14 |
Family
ID=32891932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04716543A Ceased EP1603789A1 (en) | 2003-03-07 | 2004-03-03 | Motor vehicle body pillar |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1603789A1 (en) |
DE (1) | DE10309955A1 (en) |
WO (1) | WO2004078563A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10348127A1 (en) * | 2003-10-16 | 2005-05-25 | Daimlerchrysler Ag | A pillar of a motor vehicle |
DE102004025857A1 (en) * | 2004-05-24 | 2005-12-22 | Wilhelm Karmann Gmbh | Tube section for motor vehicle e.g. car body, has material section including two oblong areas and transition area, where longitudinal mid line of one oblong area runs across longitudinal mid line of another oblong area |
DE102005034468B4 (en) * | 2005-07-23 | 2009-06-04 | Daimler Ag | Support structure of a motor vehicle front part |
DE602005013524D1 (en) * | 2005-09-08 | 2009-05-07 | Ford Global Tech Llc | Hydroformed motor vehicle pillar |
DE102007018474A1 (en) | 2007-04-19 | 2008-11-13 | Wilhelm Karmann Gmbh | Vehicle has bodywork that has multiple vehicle columns which extends from base area of vehicle in direction of roof area of vehicle |
DE102009012059B4 (en) * | 2009-03-06 | 2019-03-14 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | body structure |
US9751568B2 (en) * | 2015-12-07 | 2017-09-05 | Honda Motor Co., Ltd. | Body frame structure for a vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19519353A1 (en) * | 1995-05-26 | 1996-11-28 | Porsche Ag | Carrier of a vehicle body structure and method for its production |
DE19708905C2 (en) * | 1997-03-05 | 2002-06-27 | Daimler Chrysler Ag | Process for the production of body panels |
US6302478B1 (en) * | 1997-10-16 | 2001-10-16 | Cosma International Inc. | Hydroformed space frame joints therefor |
JP3830401B2 (en) * | 2001-06-04 | 2006-10-04 | 株式会社丸順 | Structure around the vehicle door opening |
DE10130794A1 (en) * | 2001-06-26 | 2003-01-02 | Magna Ihv Ges Fuer Innenhochdr | Structural part of a motor vehicle body and method for its production |
-
2003
- 2003-03-07 DE DE2003109955 patent/DE10309955A1/en not_active Ceased
-
2004
- 2004-03-03 WO PCT/DE2004/000401 patent/WO2004078563A1/en active Application Filing
- 2004-03-03 EP EP04716543A patent/EP1603789A1/en not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO2004078563A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004078563A1 (en) | 2004-09-16 |
DE10309955A1 (en) | 2004-09-23 |
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Legal Events
Date | Code | Title | Description |
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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 |
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17P | Request for examination filed |
Effective date: 20051007 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
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DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB IT |
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17Q | First examination report despatched |
Effective date: 20060123 |
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APBN | Date of receipt of notice of appeal recorded |
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APBR | Date of receipt of statement of grounds of appeal recorded |
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APAF | Appeal reference modified |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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APBT | Appeal procedure closed |
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18R | Application refused |
Effective date: 20090429 |