EP3481704A1 - Poutre metallique renforcee de vehicule automobile - Google Patents
Poutre metallique renforcee de vehicule automobileInfo
- Publication number
- EP3481704A1 EP3481704A1 EP17745797.5A EP17745797A EP3481704A1 EP 3481704 A1 EP3481704 A1 EP 3481704A1 EP 17745797 A EP17745797 A EP 17745797A EP 3481704 A1 EP3481704 A1 EP 3481704A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcement
- spar
- section
- motor vehicle
- hollow
- 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- Withdrawn
Links
Classifications
-
- 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
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
Definitions
- the invention relates to the field of motor vehicles. More particularly, the invention relates to the body structures of a motor vehicle.
- the body structure of a motor vehicle has several hollow metal beams such as longitudinal members, stretchers (parallel longitudinal beams extending on either side of the passenger compartment) and sleepers. Due to their large cross sections, these beams may be deformed and have a longitudinal swirl resulting in a lack of rigidity of the vehicle body. It is therefore necessary to strengthen these beams.
- the objective is to improve their rigidity with regard to shocks and torsion of cash in particular.
- Figure 1 shows a body structure 2 of a motor vehicle of the state of the art.
- Structure 2 is in this case a rocker structure of a vehicle.
- the structure 2 comprises a spar 4, in this case a sill spar and a central pillar 6 rigidly fixed to an upper portion of said spar.
- the spar comprises a reinforcement 8 placed inside said spar.
- the reinforcement 8 has a complex shape.
- the reinforcement is fixed in the spar by several electric welding points and by means of several screws which makes assembly difficult.
- the manufacture of these reinforcements requires specific tools. This solution increases the costs and manufacturing time of the vehicle structure and more particularly the spar.
- the published patent document FR 2 955 553 A1 discloses a device for reinforcing an elongate hollow body of the structure of a motor vehicle.
- the device is a wooden core configured to be introduced into the hollow body by one of its ends.
- the wooden core has a length substantially equal to that of the hollow body and a cross section smaller than that of the body.
- the wooden core does not fill the entire hollow body and requires the addition of a resin in the hollow body to bind the core to the walls of the hollow body, which increases the manufacturing costs.
- the invention aims to overcome at least one drawback of the state of the art mentioned above. More particularly, the invention aims to provide a beam reinforced metal body of a motor vehicle whose realization is facilitated. The invention also aims at a simple and economical solution.
- the subject of the invention is a metal beam, in particular a motor vehicle body, comprising two longitudinal moldings of hollow and open cross-section, each stamped comprising, at the ends of the cross section of said stamping, two wings attached to the corresponding wings, respectively, of the other stamped, so as to form two longitudinal grooves of junction and to delimit a hollow and closed cross section of the beam; a reinforcement inside the beam; remarkable in that the reinforcement is a sheet metal element which extends transversely between the flanges of the stampings, from one of the rabbets to the other of said rabbets and has an extension beyond said rebate, outside the beam.
- the beam may comprise one or more of the following characteristics, taken separately or according to all the possible technical combinations:
- each of the two stampings is U-shaped, the U-sections being opposite to each other.
- the wings and the reinforcement are welded together by electrical resistance welding.
- the reinforcement is usually flat.
- the reinforcement is perforated, preferably several times along the longitudinal direction of the beam.
- the beam is a side sill of a motor vehicle.
- the invention also relates to a body structure of a motor vehicle comprising a sill spar and a central foot rigidly fixed to an upper portion of said spar, the spar comprising: two longitudinal hollow and hollow cross section, each embossed comprising, at the ends of the cross section of said stamping, two wings fixed to the corresponding wings, respectively, of the other stamped, so as to form two longitudinal grooves of junction and to delimit a section hollow and closed cross section of the beam; a reinforcement which is a sheet metal element extending transversely between the flanges of the stampings, from one of the rabbets to the other of said rebates, characterized in that the reinforcement extends vertically continuously from the spar to middle foot.
- the structure may comprise one or more of the following characteristics, taken individually or according to all the possible technical combinations:
- the reinforcement generally extends vertically.
- the reinforcement extends vertically continuously from the spar to the middle foot.
- the extension of the reinforcement extends along a stamping of the middle foot and is attached to said stamped.
- the reinforcement also called flat core, extends vertically continuously from the spar to the middle foot. More particularly, the extension of the reinforcement out of the spar extends along a stamping of the middle foot and is fixed to said stamped. This ensures with the same piece that extends beyond the spar, a central foot lining thus forming a reinforcement of the central foot.
- the performance in vibration behavior (dynamic torsion) and in road behavior (static torsion) is thus advantageously improved, while preserving lateral impact performance.
- the invention is interesting in that it provides a reinforced metal beam motor vehicle body having a simplified assembly.
- the reinforcement of the beam extends transversely between the wings of the stampings of the beam and is welded with the wings.
- the reinforcement thus provides a direct and rigid connection between the two grooves of the junction of the beam.
- the assembly is simplified since the weld points of the joining rebates, already present, are used to fix the reinforcement, which makes it possible to reduce the weld points compared with the state of the art.
- the reinforcement is generally flat which decreases the mass of the beam compared to the state of the art presented in FIG. 1 and thus reduces manufacturing costs.
- the reinforcement also extends from a stamping of the middle foot of the vehicle structure which allows the use of an existing part of the structure of the vehicle. crate to reinforce the metal beam.
- the reinforcement also benefits from an additional connection on the center pillar.
- FIG. 1 represents a motor vehicle structure of the state of the art
- FIG. 2 shows a motor vehicle structure according to the invention
- FIG. 3 represents a perspective view of an example of reinforcement used in the structure according to the invention.
- FIG. 2 represents a body structure 102 of a motor vehicle according to the invention.
- the structure comprises a spar 104, in this case a rocker spar and a central pillar 106 rigidly fixed to an upper portion of said spar.
- the spar 104 is a metal beam.
- the metal beam comprises two longitudinal embossings 108 and 1 10 of hollow and open cross section.
- Each stamping comprises, at the ends of the cross section of said stamping, two wings fixed to the corresponding wings, respectively, of the other stamped, so as to form two rabbets 1 12 and 1 14 longitudinal junction and to delimit a hollow cross section and closed beam.
- the cross-section of each of the two stampings is U-shaped.
- the U-shaped sections are opposed to each other so as to form the hollow metal beam.
- the beam also comprises a reinforcement 1 16 inside said beam.
- the reinforcement 1 16 is a sheet metal element which extends transversely between the flanges of the stampings from one of the rabbets to the other of said rabbets. The reinforcement is thus sandwiched between the wings of the stampings and thus connects the rabbets junction.
- the beam is thus separated into two parallel hollow bodies of the same section.
- the reinforcement 1 16 is generally flat and extends generally vertically.
- the reinforcement 1 16 which may also be called a flat core, extends vertically continuously from the spar 104 to the middle foot 106. More particularly, the extension 1 18 of the reinforcement 1 16 extends along a stamped the middle foot 106 and is attached to said stamped. This ensures with the same piece that extends beyond the spar, a central foot lining thus forming a reinforcement of the central foot.
- the wings of the stampings 108 and 1 10 and the reinforcement 1 16 are welded together by electric resistance welding. The weld points of the splice grooves 1 12 and 1 14 are thus used to fix the reinforcement, which simplifies the assembly of the reinforcement in the beam.
- the reinforcement 1 16 may be perforated, it is preferably perforated along the longitudinal direction of the beam.
- the reinforcement example 1 16 shown in FIG. 3 also shows that it has at one end a flange 1 17 extending substantially perpendicularly to the plane of the web of the reinforcement 1 16 towards one of the hollow bodies 108. A partition transverse to the hollow body 108 is thus added.
- This flange 17 has flaps 19, 120 and 121 enabling it to be fixed on the walls of said hollow body 108 so as to extend transversely in said hollow body 108 from the reinforcement 1 16, thus forming a transverse partition in the beam. This improves even more the benefits of the beam.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1656395A FR3053654B1 (fr) | 2016-07-05 | 2016-07-05 | Poutre metallique renforcee de vehicule automobile |
PCT/FR2017/051704 WO2018007718A1 (fr) | 2016-07-05 | 2017-06-27 | Poutre metallique renforcee de vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3481704A1 true EP3481704A1 (fr) | 2019-05-15 |
Family
ID=56842925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17745797.5A Withdrawn EP3481704A1 (fr) | 2016-07-05 | 2017-06-27 | Poutre metallique renforcee de vehicule automobile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3481704A1 (fr) |
CN (1) | CN109415091B (fr) |
FR (1) | FR3053654B1 (fr) |
WO (1) | WO2018007718A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3086629A1 (fr) * | 2018-09-28 | 2020-04-03 | Psa Automobiles Sa | Renfort batteries pour choc arriere grande vitesse |
FR3088285B1 (fr) | 2018-11-12 | 2020-10-23 | Psa Automobiles Sa | Vehicule avec renfort de longeron montrant des proprietes mecaniques ameliorees |
FR3094327B1 (fr) * | 2019-03-29 | 2021-07-30 | Psa Automobiles Sa | Armature de soubassement d'un châssis de véhicule, comprenant des longerons arrières latéraux pourvus d'un renfort |
WO2020225590A1 (fr) * | 2019-05-07 | 2020-11-12 | Arcelormittal | Partie de longeron latéral pour véhicule automobile |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60131376A (ja) * | 1983-12-20 | 1985-07-13 | Nissan Motor Co Ltd | ピラ−とサイドシルとの結合部構造 |
JPS6451581U (fr) * | 1987-09-28 | 1989-03-30 | ||
DE19528874C2 (de) * | 1995-08-05 | 1998-02-26 | Volkswagen Ag | Tragstruktur für ein Fahrzeug |
US7347491B2 (en) * | 2006-02-14 | 2008-03-25 | Ford Motor Company | Rail to rocker joint using hydroformed members |
JP2007230466A (ja) * | 2006-03-03 | 2007-09-13 | Nissan Motor Co Ltd | サイドステップ取付構造 |
JP4719785B2 (ja) * | 2008-10-31 | 2011-07-06 | 本田技研工業株式会社 | 車体側部構造 |
FR2955553B1 (fr) | 2010-01-25 | 2012-02-03 | Peugeot Citroen Automobiles Sa | Procede pour renforcer un corps creux allonge de la structure d'un vehicule automobile et vehicule equipe d'un tel corps creux. |
DE102011051622B4 (de) * | 2011-07-07 | 2021-03-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verstärkungselement für eine Fahrzeugstruktur, insbesondere für einen Schweller eines Kraftfahrzeugs |
FR2989055B1 (fr) * | 2012-04-04 | 2014-04-25 | Peugeot Citroen Automobiles Sa | Cloison de pied milieu affaiblie en y et renforcee en z. |
JP6054536B2 (ja) * | 2013-09-03 | 2016-12-27 | 本田技研工業株式会社 | 車体構造 |
US9090291B1 (en) * | 2014-04-01 | 2015-07-28 | Toyota Motor Engineering & Manufacturing North America, Inc. | Front pillar assemblies with front pillar lower reinforcement members having lower wrap reinforcement structures |
CN104176131B (zh) * | 2014-08-14 | 2016-08-31 | 重庆长安汽车股份有限公司 | 一种汽车发动机舱前纵梁 |
CN105416403B (zh) * | 2015-11-27 | 2017-11-17 | 安徽江淮汽车集团股份有限公司 | 一种重型卡车的侧围总成结构 |
-
2016
- 2016-07-05 FR FR1656395A patent/FR3053654B1/fr active Active
-
2017
- 2017-06-27 EP EP17745797.5A patent/EP3481704A1/fr not_active Withdrawn
- 2017-06-27 WO PCT/FR2017/051704 patent/WO2018007718A1/fr unknown
- 2017-06-27 CN CN201780041177.8A patent/CN109415091B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
FR3053654A1 (fr) | 2018-01-12 |
CN109415091B (zh) | 2021-12-28 |
WO2018007718A1 (fr) | 2018-01-11 |
FR3053654B1 (fr) | 2019-09-13 |
CN109415091A (zh) | 2019-03-01 |
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