EP4313735A1 - Reinforcing system for a motor vehicle floor - Google Patents
Reinforcing system for a motor vehicle floorInfo
- Publication number
- EP4313735A1 EP4313735A1 EP22710133.4A EP22710133A EP4313735A1 EP 4313735 A1 EP4313735 A1 EP 4313735A1 EP 22710133 A EP22710133 A EP 22710133A EP 4313735 A1 EP4313735 A1 EP 4313735A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcement
- floor
- zone
- absorption
- ribbed
- 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.)
- Pending
Links
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 122
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- 230000002787 reinforcement Effects 0.000 claims description 152
- 230000035939 shock Effects 0.000 claims description 30
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- 239000006096 absorbing agent Substances 0.000 description 3
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- 238000010146 3D printing Methods 0.000 description 2
- 239000003677 Sheet moulding compound Substances 0.000 description 2
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Classifications
-
- 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
- B62D21/157—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 for side impacts
-
- 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
- B62D25/20—Floors or bottom sub-units
Definitions
- the technical context of the present invention is that of structural elements fitted to a motor vehicle, and more particularly protective assemblies configured to absorb a side impact occurring at the level of the motor vehicle. More particularly, the invention relates to a reinforcement system for a motor vehicle floor.
- diagonal reinforcements and spar reinforcements are known, housed in the side doors of motor vehicles.
- the diagonal reinforcements and the side members make it possible to limit intrusions in the event of a "barrier side impact”, in other words during a side impact against an extended surface, such as a side impact induced by another vehicle driving and striking the vehicle laterally automobile.
- the object of the present invention is to propose a new reinforcement system for the floor of a motor vehicle in order to at least largely respond to the above problems and also to lead to other advantages.
- Another object of the invention is to provide a space-saving motor vehicle floor reinforcement system, guaranteeing the compactness and lightness of the motor vehicle.
- Another object of the invention is to provide an inexpensive motor vehicle floor reinforcement system, so as not to negatively impact the cost of the motor vehicle.
- Another object of the invention is to provide a simple motor vehicle floor reinforcement system, both from the point of view of its implementation and from the point of view of its manufacture.
- Another object of the invention is to provide a reinforcement system for the floor of a motor vehicle which is more satisfactory in terms of reducing electrical risks.
- a reinforcement system for a motor vehicle floor comprising (i) an upper plate comprising members for fixing to the floor, (ii) a shock absorption zone integral with the upper plate, the absorption zone being configured to be able to deform at constant force under the effect of a shock, (iii) a rigid reinforcement zone configured in order to be able to transmit a compressive force resulting from the impact, the zone of reinforcement being integral with the upper plate and extending longitudinally in the extension of the absorption zone.
- the upper plate fixed integrally and simultaneously the absorption zone and the reinforcement zone.
- the top plate is a generally flat part, which extends in a main plane.
- the absorption zone is configured to be able to absorb a shock.
- the absorption zone is configured to be deformed following the shock to absorb said shock.
- the absorption zone is configured to be between a side wall of the motor vehicle. and the reinforcement zone. It is understood that the absorption zone is configured to be able to absorb a compressive force following a "post side impact". In other words, the absorption zone is configured to be able to absorb a side impact against a narrow surface, such as a fixed obstacle in the form of a tree or a pole.
- the absorption zone makes it possible to absorb a shock by compression to preserve any element located laterally behind said absorption zone.
- the absorption zone makes it possible to protect the electric batteries of the motor vehicle located under a floor called an electric motor vehicle.
- the reinforcement zone allows transmission of force.
- rigid it is meant that the rigid reinforcement zone is distinguished from the absorption zone configured to undergo deformation.
- the reinforcement zone is configured to be resistant to mechanical deformation induced by a post side impact.
- the reinforcement zone makes it possible to transmit a force from the absorption zone.
- the force from the absorption zone is a part of the force not absorbed by the absorption zone and transmitted to the reinforcement zone.
- the reinforcement zone is configured to be able to transmit a compressive force following a “post side impact” transmitted by the absorption zone.
- the reinforcement zone makes it possible to preserve from compression any element located laterally behind said absorption zone, on and under the reinforcement zone.
- the reinforcement zone makes it possible to protect the electric batteries of the motor vehicle located under the floor of said electric motor vehicle.
- Such a reinforcement system by combining a shock absorption function intended to be implemented upstream of a shock dissipation function, makes it possible to reinforce the floor of a motor vehicle.
- Such a reinforcement system improves the distribution of forces at the level of the floor of the motor vehicle that it equips and makes it possible to maintain the floor rigid.
- This solution makes it possible to preserve the electric batteries of the motor vehicle located under the floor of said electric motor vehicle, while being simple to implement.
- the reinforcement system according to the invention has the advantage of overcoming the drawbacks mentioned above, without having to make any significant modification to the floor that it equips.
- the reinforcement system in accordance with the first aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:
- the absorption zone comprises at least one absorption block configured to deform at constant force, each at least one absorption block being integral with the upper plate.
- the at least one absorption block is configured to be able to absorb a shock.
- the at least one absorption block is configured to be deformed following the shock to absorb said shock. It is understood that the at least one absorption block is configured to be able to absorb a compressive force resulting from a “post side impact”. In other words, the at least one absorption block is configured to be able to absorb a side impact against a narrow surface, such as a fixed obstacle taking the form of a tree or a pole.
- the at least one absorption block makes it possible to absorb a shock by compression to preserve any element located laterally behind said absorption zone.
- the at least one absorption block makes it possible to protect electric batteries of the motor vehicle located under a floor called an electric motor vehicle;
- each absorption block is made up of an alveolar structure. It is understood that such an absorption block has a profile with several closed cells. Such an absorption block facilitates the deformation by compression allowing to dissipate the compressive force induced by an impact.
- each absorption block is formed of a hollow lattice structure. Such an absorption block is optimized to be able to compress;
- each absorption block is formed of a honeycomb structure
- each absorption block is made of a deformable material, such as synthetic foam, preferably hard.
- Each absorption block is endowed with elasticity, in the sense that their deformable character results from an extension or a compaction of their elastic material.
- Such an absorption block advantageously makes it possible to provide a passage therein intended for the passage and protection of an electrical harness;
- each absorption block is obtained by 3D printing.
- This industrial forming process makes it possible to obtain at a lower cost a large number of identical units in volume by adding material in successive layers from three-dimensional computer modeling, in particular designed from a design tool. computer aided also called CAD.
- An example of 3D printing is by laser polymerization in a resin tank, or in additive mode.
- each absorption block is obtained by molding. This industrial forming process makes it possible to obtain a large number of identical units at a lower cost by repeating the use of the same mould;
- the absorption zone is solidly fixed in a non-detachable manner to the upper plate.
- non-detachable it is meant that the absorption zone is permanently fixed to the upper plate, the absorption zone and the upper plate being able to be separated from each other only by destruction and/or damage to part of the absorption zone and/or part of the top plate.
- a non-detachable fastening means is for example by gluing or by welding;
- the rigid reinforcement zone comprises at least one ribbed reinforcement member integral with the upper plate, each ribbed member projecting from the upper plate and extending longitudinally from the absorption zone and in the direction of 'an opposite edge of the top plate.
- the at least one ribbed member is configured to reinforce the robustness to the mechanical forces that may be imposed on the reinforcement zone.
- the at least one ribbed member is configured to reinforce the robustness of the reinforcement zone with regard to a force corresponding to a shock by compression.
- the at least one ribbed member projects from the upper plate and makes it possible to maintain the upper plate fixed relative to the reinforcement zone despite a compression shock;
- each ribbed organ has at least two ribs running parallel to each other and having a rectangular transverse profile.
- the at least two ribs are configured to enhance robustness to mechanical stresses that may be imposed on the ribbed member.
- the at least two ribs are configured to reinforce the robustness of the ribbed member with regard to a force corresponding to a shock by compression.
- the at least two ribs project from the upper plate and make it possible to maintain the upper plate fixed relative to the reinforcement zone despite a shock by compression.
- Such a ribbed member with at least two ribs makes it possible to reinforce the reinforcement zone;
- each ribbed member is made of a composite material consisting of a plastic material reinforced with a fibrous material.
- the fibrous material increases the rigidity of the plastic material.
- Such a fiber-filled composite material has reinforced mechanical properties of resistance to deformation;
- the plastic material is for example polypropylene
- the fibrous material is for example PMC, for the English acronym “Phenolic Molding Compounds” or SMC, for the English acronym “Sheet Molding Compounds”;
- the reinforcement zone is integrally fixed in a non-detachable manner to the upper plate.
- non-detachable it is meant that the reinforcement zone is permanently fixed to the upper plate, the reinforcement zone and the upper plate being able to be separated from each other only by destruction and/or damage to part of the reinforcement area and/or part of the top plate.
- a non-detachable fastening means is for example by gluing or by welding;
- the at least one ribbed member comprises at least one metal tube housed between two adjacent ribs of the ribbed member, each at least one metal tube extending parallel to said ribs.
- the at least one metal tube is configured to reinforce the robustness to the mechanical forces that may be imposed on the ribbed member, in addition to the robustness conferred on the ribbed member by the two ribs.
- the at least one metal tube is configured to reinforce the robustness of the ribbed member with regard to a force corresponding to a shock by compression.
- the at least one metal tube projects from the upper plate and makes it possible to maintain the upper plate fixed relative to the reinforcement zone despite a shock by compression.
- each tube is cylindrical in shape.
- a transverse section of each tube is formed by a closed contour, for example of circular or polynomial shape.
- the cross section of each tube is invariant in shape and in dimension between two longitudinal ends of said tube;
- each metal tube extends from one face of an absorption block and towards the opposite edge of the top plate;
- each metal tube is force-fitted between two adjacent ribs.
- each metal tube is fixed integrally and in a non-detachable manner to the upper plate.
- non-detachable it is meant that each metal tube is permanently fixed to the upper plate, each metal tube and the upper plate being able to be separated from each other only by destruction and/or damage to a part of each metal tube and/or part of the top plate.
- a non-detachable fastening means is for example by gluing or by welding;
- a floor arrangement for a motor vehicle comprising (i) a floor reinforced by two seat crosspieces extending laterally from one edge to the another of the floor and (ii) a reinforcement system in accordance with the first aspect of the invention or according to any one of its improvements, the reinforcement system being firmly fixed to the floor at the level of the said seat crosspieces.
- the floor forms a flat surface intended to form a bottom of the body of a motor vehicle.
- the two seat rails and the reinforcement system reinforce the floor against mechanical stresses that may be imposed on the floor.
- the floor arrangement according to the invention is intended to be economical in terms of materials, dispensing with the addition of additional crosspieces to reinforce the floor.
- Such a floor arrangement according to the invention is also lighter.
- the reinforcement system has shapes and dimensions that complement those of the seat rails in order to fit into the depression zones formed at the level of the floor and the seat rails. Such a reinforcement system is compact and contributes to a compact floor arrangement, without affecting the interior architecture of a passenger compartment of the motor vehicle that it equips.
- the absorption zone of the reinforcement system is located at an outer end of the seat rails, and the reinforcement zone extends parallel to the seat rails.
- the outer end is that located at the level of a side wall of the motor vehicle.
- the floor arrangement for a motor vehicle in accordance with the second aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:
- the reinforcement zone of the reinforcement system comprises (i) a front reinforcement ribbed member which extends longitudinally in front of a front seat cross member, (ii) a rear reinforcement ribbed member which extends extends longitudinally behind a rear seat cross member, (iii) a first intermediate reinforcing ribbed member which extends between two end portions of the front seat crossmember, (iv) a second intermediate reinforcing ribbed member which extends between two end portions of the rear seat cross member, (v) a third intermediate reinforcement ribbed member located between the rear seat cross member and the front seat cross member.
- the floor arrangement according to the invention comprising such a reinforcement zone takes advantage of a set of spaces, left vacant in the floor arrangements of the prior art, upstream, downstream and between the front seat crosspieces ;
- the absorption zone of the reinforcement system comprises, (i) a front absorption block located in the extension of the front reinforcement ribbed member at the level of a front part of the floor, (ii) a rear absorption block located in the extension of the rear reinforcement ribbed member at the level of a rear part of the floor, (iii) a first absorption block located in the extension of the first intermediate reinforcement ribbed member, (iv ) a second absorption block located in the extension of the second intermediate reinforcement ribbed member, (v) a third absorption block located in the extension of the third intermediate reinforcement ribbed member.
- the first absorption block and the second absorption block are identical “Identical” means that they have the same dimensions and the same shape.
- two “identical” elements have the same mechanical characteristics
- the frontal absorption block and the rear absorption block are identical to each other, and are different from the first absorption block and the second absorption block. “Identical” means that they have the same dimensions and the same shape, and “different” means that they have different dimensions and a different shape.
- two “identical” elements have the same mechanical characteristics, and two “different” elements have distinct mechanical characteristics;
- the third absorption block is different from all other absorption blocks. “Different” means that it has distinct dimensions and a distinct shape from the other absorption blocks. Advantageously, it is understood that two “different” elements have distinct mechanical characteristics;
- the absorption zone of the reinforcement system comprises a passage for an electrical harness of the motor vehicle, the passage being formed by a cavity configured to be able to accommodate the electrical harness.
- Such an absorption zone makes it possible to protect the electrical harness housed in the passage.
- a motor vehicle comprising a floor arrangement in accordance with the second aspect of the invention or according to any of its improvements.
- the reinforcement system by combining a shock absorption function intended to be implemented upstream of a shock dissipation function, makes it possible to reinforce the floor of said motor vehicle.
- the distribution of the forces at the level of the floor makes it possible to maintain the rigid floor, in particular during a "post side impact", in other words in the event of an impact occurring at the level of a lateral side of the motor vehicle against a narrow surface, such as a fixed obstacle taking the form of a tree or a post.
- the motor vehicle according to the second aspect of the invention is for example of the BEV type for the English acronym Battery Electric Vehicle, equipped with an electric motor.
- the motor vehicle in accordance with the second aspect of the invention is for example of the PHEV type, for the English acronym Plug-in Hybrid Electric, equipped with both a combustion engine and an electric engine.
- the floor arrangement is located at the electric batteries of said motor vehicle.
- FIG.1 illustrates a schematic view of a motor vehicle according to the third aspect of the invention
- FIG.2 illustrates a schematic view of a reinforcement system according to the first aspect of the invention in a first variant embodiment
- FIG.3 illustrates a schematic view of a floor arrangement according to the second aspect of the invention equipped with the reinforcement system shown in FIGURE 2;
- FIG.4 illustrates a first cross-sectional view of the reinforcement system shown in FIGURE 2;
- FIG.5 illustrates a second longitudinal sectional view of the reinforcement system shown in FIGURE 2;
- FIG.6 illustrates a schematic view of a floor arrangement according to the second aspect of the invention equipped with a second embodiment of the reinforcement system according to the first aspect of the invention.
- the features, variants and different embodiments of the invention may be associated with each other, in various combinations, insofar as they are not mutually exclusive or mutually exclusive.
- variants of the invention may be imagined comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from to the state of the prior art.
- FIGURE 1 illustrates a schematic view of a motor vehicle 1 according to the third aspect of the invention, seen from above.
- a frame of reference is defined in which a longitudinal axis OX, a transverse axis OY and a vertical axis OZ are defined.
- the longitudinal axis OX corresponds to a trajectory of the motor vehicle 1 when it is in forward motion, in a straight line and on a flat road.
- the longitudinal axis OX corresponds to a direction running from the front to the rear of the motor vehicle 1, and it is oriented from the front to the rear of the motor vehicle 1.
- a longitudinal direction parallel to the longitudinal axis OX the adjectives "front”, “rear” or “frontal” refer to this reference direction, the term “length” also.
- the transverse axis OY corresponds to the axis around which the wheels of the motor vehicle 1 rotate, and the direction of the axis OY is oriented from a driver's side to a passenger's side, in the non-Anglo-Saxon standard.
- a transverse direction parallel to the transverse axis OY is also defined, and the adjectives “lateral” or “transverse” refer to this reference direction, the term “width” also.
- the motor vehicle 1 according to the third aspect of the invention comprises an arrangement 2 of floor 3 according to the second aspect of the invention.
- the arrangement 2 of the floor 3 comprises a floor 3, two crosspieces 4, 20 for the seat reinforcing the floor 3 and a reinforcement system 5 for the floor 3 in accordance with the first aspect of the invention.
- the floor 3 comprises lateral edges 6 between which the two crosspieces 4, 20 of the seat extend in the transverse direction.
- the floor 3 further comprises a front part 7 upstream of the crosspieces 4, 20 of the seat and a rear part 8 downstream of the crosspieces 4, 20 of the seat, relative to the longitudinal direction.
- the reinforcement system 5 comprises an upper plate 9, a shock absorption zone 10 and a reinforcement zone 11
- the floor 3 is between the arrangement 2 of the floor 3 and a battery pack 12 of the motor vehicle 1 which is of the electric type.
- the floor 3 reinforced by the reinforcement system 5 according to the invention makes it possible to preserve the battery unit 12 of the motor vehicle 1 during a compression shock.
- the reinforcement system 5 and the cross-members 4, 20 of the seat are mounted, relative to the transverse direction, behind a side member 13 of the motor vehicle 1.
- the absorption zone 10 is proximal to the side member 13 of the vehicle motor vehicle 1 and the reinforcement zone 11 is distal to the side sill 13 of the motor vehicle 1.
- FIGURES 2 to 6 illustrate the reinforcement system 5 according to the first aspect of the invention.
- a first alternative embodiment of the reinforcement system 5 according to the first aspect of the invention is shown in FIGURE 2 to 5, and a second alternative embodiment is shown in FIGURE 6.
- FIGURE 4 illustrates a first cross section AA, illustrated in FIGURE 2, of the reinforcement system 5 shown in FIGURE 2
- FIGURE 5 illustrates a second longitudinal section BB, illustrated in FIGURE 2, of the reinforcement system 5 shown in FIGURE 2.
- the reinforcement system 5 is illustrated seen from above, without its upper plate 9 in order to facilitate the understanding of said FIGURES.
- the seat rails 4, 20 are shown to illustrate a relative positioning of the seat rails 4, 20 and the reinforcement system 5 according to the invention.
- FIGURES 3 and 6 illustrate in particular a schematic view of the arrangement 2 of floor 3 in accordance with the second aspect of the invention equipped with the reinforcement system 5 according to one of its variant embodiments.
- the reinforcement zone 11 comprises at least one ribbed member 14, 15, 16, 17, 18 extending longitudinally from the absorption zone 10.
- the reinforcement zone 11 comprises five ribbed members 14, 15, 16, 17, 18.
- the reinforcement zone 11 comprises a front reinforcement ribbed member 14, a rear reinforcement ribbed member 15, a first intermediate reinforcing rib member 16, a second intermediate reinforcing rib member 17 and a third intermediate reinforcing rib member 18.
- FIGURES 3 and 6 show that the ribbed frontal reinforcement member 14 extends longitudinally in front of a crosspiece 4 of the frontal seat.
- the rear reinforcing ribbed member 15 extends longitudinally behind a cross member 20 of the rear seat.
- the first intermediate reinforcement ribbed member 16 extends between two end parts 21, 22 of the crosspiece 4 of the front seat.
- the second intermediate reinforcement ribbed member 17 extends between two end portions 23, 24 of the cross member 20 of the rear seat.
- the third intermediate reinforcement ribbed member 18 is located between the cross member 20 of the rear seat and the cross member 4 of the front seat.
- each ribbed member 14, 15, 16, 17, 18 comprises at least two ribs 100, 200, 300 extending parallel to each other and having a profile rectangular transverse.
- the ribbed front reinforcement member 14 comprises two ribs 100.
- the rear reinforcement ribbed member 15 comprises two ribs 100.
- the first intermediate reinforcing rib member 16 comprises six ribs 200, 300.
- the second intermediate reinforcing rib member 17 comprises six ribs 200, 300.
- the third intermediate reinforcing rib member 18 comprises four ribs 100.
- the front reinforcement ribbed member 14 of the reinforcement system 5 and the rear reinforcement ribbed member 15 of the reinforcement system 5 each comprise two ribs 100 and a metal tube 400 housed between two adjacent ribs 100 of the ribbed member 14, 15 considered.
- the third intermediate reinforcement ribbed member 18 of the reinforcement system 5 comprises two adjacent ribs 100 and two metal tubes 400 housed on either side of the two adjacent ribs 100. Each metal tube 400 extends parallel to the ribs 100 of the ribbed member 14, 15, 18 considered.
- the first intermediate reinforcing rib member 16 comprises six ribs 200, 300.
- the second intermediate reinforcing rib member 17 comprises six ribs 200, 300.
- the absorption zone 10 of the reinforcement system 5 comprises at least one absorption block 25, 26, 27, 28, 29 configured to deform at constant effort.
- the absorption zone 10 comprises five absorption blocks 25, 26, 27, 28, 29.
- Each absorption block 25, 26, 27, 28, 29 is formed of a honeycomb structure of the type of a hollow lattice structure configured to undergo a programmed deformation in response to an impact occurring laterally.
- the absorption zone 10 of the reinforcement system 5 comprises a frontal absorption block 25, a block of rear absorption 26, a first absorption block 27, a second absorption block 28 and a third absorption block 29.
- FIGURE 3 shows that the front absorption block 25 is located in the extension of the front reinforcement ribbed member 14 at the level of the front part 7 of the floor 3.
- the rear absorption block 26 located in the extension of the rear reinforcement ribbed member 15 at the level of the rear part 8 of the floor 3.
- the first absorption block 27 is located in the extension of the first intermediate reinforcement ribbed member 16.
- the second absorption block 28 is located in the extension of the second intermediate reinforcement ribbed member 17.
- the third absorption block 29 located in the extension of the third intermediate reinforcement ribbed member 18.
- the first absorption block 27 and the second absorption block 28 are identical in shape, in size and from the point of view of their mechanical properties, in particular in their ability to deform.
- the front absorption block 25 and the rear absorption block 26 are identical in shape, in size and from the point of view of their mechanical properties, in particular in their ability to deform.
- the front absorption block 25 and the rear absorption block 26 are different from the first absorption block 27 and from the second absorption block 28, in shape, in size and from the point of view of their mechanical properties, in particular in their ability to deform.
- the third absorption block 29 is different from all the other absorption blocks, in shape, in size and from the point of view of its mechanical properties, in particular in its ability to deform.
- the upper plate 9 comprises fasteners 30 to the floor 3 formed of four holes 31.
- the absorption blocks 25, 26, 27, 28, 29, in particular the third absorption block 29 visible in the section, and the ribbed members 14, 15, 16, 17, 18, in particular the third intermediate reinforcement ribbed member 18 on the section, are integral with the upper plate 9.
- the reinforcement zone 11 is secured to the upper plate 9 and extending longitudinally in the extension of the absorption zone 10.
- the ribbed members 14 , 15, 16, 17, 18 extend longitudinally from the absorption zone 10 towards an opposite edge 19 of the upper plate 9.
- FIGURE 5 shows that the ribbed members 14, 15, 16, 17, 18 extend projecting from a lower face 32 of the upper plate 9 in the vertical direction, the lower face 32 being opposite an upper face 33 of the upper plate 9.
- the ribs 100 of the front reinforcing ribbed member 14, the ribs 100 of the rear reinforcing ribbed member 15 and the ribs 100 of the third intermediate reinforcing ribbed member 18 have an identical profile.
- the first intermediate reinforcement ribbed member 16 and the second intermediate reinforcement ribbed member 17 have an identical profile.
- the first intermediate reinforcement ribbed member 16 and the second intermediate reinforcement ribbed member 17 comprise two types of ribs 200, 300, namely two adjacent intermediate ribs 200 between two adjacent ribs 300 front and two adjacent ribs 300 rear.
- the intermediate adjacent ribs 200 have a free edge 201 between a free edge 301 of the front adjacent ribs 300 and a free edge 101 of the ribs 100 of the frontal reinforcing rib member 14.
- the invention relates to a reinforcement system 5 for the floor 3 of a motor vehicle 1, the reinforcement system 5 comprising an upper plate
- the absorption zone 10 is integral with the upper plate 9 and is configured to be able to deform under constant force under the effect of a shock.
- the reinforcement zone 11 is rigid, is configured to be able to transmit a compressive force following the impact, is integral with the upper plate 9 and extends longitudinally in the extension of the absorption zone 10.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a reinforcing system (5) for a motor vehicle floor, the reinforcing system (5) comprising an upper plate comprising members for fastening to the floor, an impact absorption zone (10) and a reinforcing zone (11). The absorption zone (10) is secured to the upper plate and is configured to be able to deform with constant force under the effect of an impact. The reinforcing zone (11) is rigid, is configured to be able to transmit a compressive force subsequent to the impact, is secured to the upper plate and extends longitudinally in the continuation of the absorption zone (10).
Description
Description Description
Titre de l'invention : Système de renfort pour plancher de véhicule automobile Title of the invention: Reinforcement system for motor vehicle floor
[1] La présente invention revendique la priorité de la demande française 2103034 déposée le 25 mars 2021 , dont le contenu (texte, dessins et revendications) est ici incorporé par référence. [1] The present invention claims the priority of French application 2103034 filed on March 25, 2021, the content of which (text, drawings and claims) is incorporated herein by reference.
[2] Le contexte technique de la présente invention est celui des éléments structuraux équipant un véhicule automobile, et plus particulièrement des ensembles de protection configurés pour absorber un choc latéral survenant au niveau du véhicule automobile. Plus particulièrement, l’invention a trait à un système de renfort pour plancher de véhicule automobile. [2] The technical context of the present invention is that of structural elements fitted to a motor vehicle, and more particularly protective assemblies configured to absorb a side impact occurring at the level of the motor vehicle. More particularly, the invention relates to a reinforcement system for a motor vehicle floor.
[3] Dans l’état de la technique, on connaît des éléments structuraux des véhicules automobiles et notamment des ensembles de protection configurés pour absorber un choc survenant au niveau du véhicule automobile. Ces ensembles de protection permettent de dissiper le choc afin de protéger des éléments du véhicule automobile, notamment les éléments situés au niveau d’un compartiment moteur dudit véhicule automobile, ainsi que les éléments situés au niveau d’un habitacle du véhicule automobile, tout comme leurs occupants. [3] In the state of the art, there are known structural elements of motor vehicles and in particular protective assemblies configured to absorb an impact occurring at the level of the motor vehicle. These protective assemblies make it possible to dissipate shock in order to protect elements of the motor vehicle, in particular the elements located at the level of an engine compartment of said motor vehicle, as well as the elements located at the level of a passenger compartment of the motor vehicle, just like their occupants.
[4] Parmi ces ensembles de protection, on connaît des renforts dits « diagonaux » et des renforts de longerons, logés dans des portes latérales des véhicules automobiles. Les renforts diagonaux et les longerons permettent de limiter des intrusions en cas de « choc latéral barrière », autrement dit lors d’un choc latéral contre une surface étendue, tel qu’un choc latéral induit par un autre véhicule roulant et percutant latéralement le véhicule automobile. [4] Among these protective assemblies, so-called “diagonal” reinforcements and spar reinforcements are known, housed in the side doors of motor vehicles. The diagonal reinforcements and the side members make it possible to limit intrusions in the event of a "barrier side impact", in other words during a side impact against an extended surface, such as a side impact induced by another vehicle driving and striking the vehicle laterally automobile.
[5] L’inconvénient de ces renforts est qu’ils offrent une protection latérale inefficaces en cas de « choc latéral poteau », autrement dit en cas d’un choc latéral contre une surface étroite, telle qu’un obstacle fixe prenant la forme d’un arbre ou d’un poteau. [5] The disadvantage of these reinforcements is that they provide ineffective side protection in the event of a "post side impact", in other words in the event of a side impact against a narrow surface, such as a fixed obstacle taking the form of a tree or pole.
[6] On connaît par ailleurs structures de renfort formées de deux traverses s’étendant latéralement sur un plancher du véhicule automobile, en arrière des portes latérales du véhicule automobile. Les deux traverses augmentent la rigidité du
plancher lors d’un choc latéral, notamment lors d’un « choc latéral poteau », autrement dit en cas d’un choc latéral contre une surface étroite, telle qu’un obstacle fixe prenant la forme d’un arbre ou d’un poteau. [6] There are also known reinforcing structures formed of two crosspieces extending laterally on a floor of the motor vehicle, behind the side doors of the motor vehicle. The two crosspieces increase the rigidity of the floor during a side impact, in particular during a "side post impact", in other words in the event of a side impact against a narrow surface, such as a fixed obstacle in the form of a tree or post.
[7] Un inconvénient de ces structures de renfort formées de deux traverses est que, pour des véhicules automobiles électriques, leur capacité d’absorption d’énergie en cas de « choc latéral poteau » peut être insuffisante pour protéger des batteries électriques du véhicule automobile situées sous un plancher dit véhicule automobile électrique, en arrière des renforts diagonaux et de longerons. [7] A drawback of these reinforcing structures formed of two crosspieces is that, for electric motor vehicles, their energy absorption capacity in the event of a "post side impact" may be insufficient to protect the electric batteries of the motor vehicle located under a so-called electric motor vehicle floor, behind the diagonal and side member reinforcements.
[8] La présente invention a pour objet de proposer un nouveau système de renfort pour plancher de véhicule automobile afin de répondre au moins en grande partie aux problèmes précédents et de conduire en outre à d’autres avantages. [8] The object of the present invention is to propose a new reinforcement system for the floor of a motor vehicle in order to at least largely respond to the above problems and also to lead to other advantages.
[9] Un autre but de l’invention est de proposer un système de renfort pour plancher de véhicule automobile peu encombrant, garantissant la compacité et la légèreté du véhicule automobile. [9] Another object of the invention is to provide a space-saving motor vehicle floor reinforcement system, guaranteeing the compactness and lightness of the motor vehicle.
[10] Un autre but de l’invention est de proposer un système de renfort pour plancher de véhicule automobile peu onéreux, de sorte à ne pas impacter négativement le coût du véhicule automobile. [10] Another object of the invention is to provide an inexpensive motor vehicle floor reinforcement system, so as not to negatively impact the cost of the motor vehicle.
[11] Un autre but de l’invention est de proposer un système de renfort pour plancher de véhicule automobile simple, tant du point de vue de sa mise en œuvre, que du point de vue de sa fabrication. [11] Another object of the invention is to provide a simple motor vehicle floor reinforcement system, both from the point of view of its implementation and from the point of view of its manufacture.
[12] Un autre but de l’invention est de proposer un système de renfort pour plancher de véhicule automobile qui soit plus satisfaisant en termes de réduction des risques électriques. [12] Another object of the invention is to provide a reinforcement system for the floor of a motor vehicle which is more satisfactory in terms of reducing electrical risks.
[13] Selon un premier aspect de l’invention, on atteint au moins l’un des objectifs précités avec un système de renfort pour plancher de véhicule automobile, le système de renfort comportant (i) une plaque supérieure comportant des organes de fixation au plancher, (ii) une zone d’absorption de choc solidaire de la plaque supérieure, la zone d’absorption étant configurée pour pouvoir se déformer à effort constant sous l’effet d’un choc, (iii) une zone de renforcement rigide configurée pour pouvoir transmettre un effort de compression consécutif au choc, la zone de
renforcement étant solidaire de la plaque supérieure et s’étendant longitudinalement dans le prolongement de la zone d’absorption. [13] According to a first aspect of the invention, at least one of the aforementioned objectives is achieved with a reinforcement system for a motor vehicle floor, the reinforcement system comprising (i) an upper plate comprising members for fixing to the floor, (ii) a shock absorption zone integral with the upper plate, the absorption zone being configured to be able to deform at constant force under the effect of a shock, (iii) a rigid reinforcement zone configured in order to be able to transmit a compressive force resulting from the impact, the zone of reinforcement being integral with the upper plate and extending longitudinally in the extension of the absorption zone.
[14] Dans le système de renfort conforme au premier aspect de l’invention, la plaque supérieure fixe solidairement et simultanément la zone d’absorption et la zone de renforcement. La plaque supérieure est une pièce globalement plane, qui s’étend dans un plan principal. [14] In the reinforcement system according to the first aspect of the invention, the upper plate fixed integrally and simultaneously the absorption zone and the reinforcement zone. The top plate is a generally flat part, which extends in a main plane.
[15] Dans le système de renfort conforme au premier aspect de l’invention, la zone d’absorption est configurée pour pouvoir absorber un choc. La zone d’absorption est configurée pour être déformée suite au choc pour absorber ledit choc. Dans le véhicule automobile équipé du système de renfort selon l’invention, la zone d’absorption est configurée pour être entre un flan latéral du véhicule automobile. et la zone de renforcement. On comprend que la zone d’absorption est configurée pour pouvoir absorber un effort de compression consécutif à un « choc latéral poteau ». Autrement dit, la zone d’absorption est configurée pour pouvoir absorber un choc latéral contre une surface étroite, telle qu’un obstacle fixe prenant la forme d’un arbre ou d’un poteau. Ainsi, la zone d’absorption permet d’absorber un choc par compression pour préserver tout élément situé latéralement en arrière dudit de ladite zone d’absorption. Notamment, dans le cas d’un véhicule automobile électrique équipé de l’ensemble absorbeur de chocs selon l’invention, la zone d’absorption permet de protéger des batteries électriques du véhicule automobile situées sous un plancher dit véhicule automobile électrique. [15] In the reinforcement system according to the first aspect of the invention, the absorption zone is configured to be able to absorb a shock. The absorption zone is configured to be deformed following the shock to absorb said shock. In the motor vehicle equipped with the reinforcement system according to the invention, the absorption zone is configured to be between a side wall of the motor vehicle. and the reinforcement zone. It is understood that the absorption zone is configured to be able to absorb a compressive force following a "post side impact". In other words, the absorption zone is configured to be able to absorb a side impact against a narrow surface, such as a fixed obstacle in the form of a tree or a pole. Thus, the absorption zone makes it possible to absorb a shock by compression to preserve any element located laterally behind said absorption zone. In particular, in the case of an electric motor vehicle equipped with the shock absorber assembly according to the invention, the absorption zone makes it possible to protect the electric batteries of the motor vehicle located under a floor called an electric motor vehicle.
[16] Dans le système de renfort conforme au premier aspect de l’invention, la zone de renforcement permet une transmission d’effort. Par « rigide », on entend que la zone de renforcement rigide se distingue de la zone d’absorption configurée pour subir une déformation. Autrement dit, la zone de renforcement est configurée pour être résistante à une déformation mécanique induite par un choc latéral poteau. [16] In the reinforcement system according to the first aspect of the invention, the reinforcement zone allows transmission of force. By “rigid”, it is meant that the rigid reinforcement zone is distinguished from the absorption zone configured to undergo deformation. In other words, the reinforcement zone is configured to be resistant to mechanical deformation induced by a post side impact.
[17] En étant dans le prolongement de la zone d’absorption, la zone de renforcement permet de transmettre un effort issu de la zone d’absorption. L’effort issu de la zone d’absorption est un partie d’effort non absorbée par la zone d’absorption et transmise dans la zone de renforcement. On comprend que la zone de renforcement est configurée pour pouvoir transmettre un effort de compression consécutif à un « choc latéral poteau » transmis par la zone d’absorption. Ainsi, la
zone de renforcement permet de préserver de la compression tout élément situé latéralement en arrière de ladite zone d’absorption, sur et sous la zone de renforcement. Notamment, dans le cas d’un véhicule automobile électrique équipé de l’ensemble absorbeur de chocs selon l’invention, la zone de renforcement permet de protéger des batteries électriques du véhicule automobile situées sous le plancher dit véhicule automobile électrique. [17] By being in the extension of the absorption zone, the reinforcement zone makes it possible to transmit a force from the absorption zone. The force from the absorption zone is a part of the force not absorbed by the absorption zone and transmitted to the reinforcement zone. It will be understood that the reinforcement zone is configured to be able to transmit a compressive force following a “post side impact” transmitted by the absorption zone. Thus, the reinforcement zone makes it possible to preserve from compression any element located laterally behind said absorption zone, on and under the reinforcement zone. In particular, in the case of an electric motor vehicle equipped with the shock absorber assembly according to the invention, the reinforcement zone makes it possible to protect the electric batteries of the motor vehicle located under the floor of said electric motor vehicle.
[18] Un tel système de renfort, en associant une fonction d’absorption de choc destinée à être mise en oeuvre en amont d’une fonction de dissipation du choc, permet de renforcer le plancher d’un véhicule automobile. Un tel système de renfort améliore la distribution des efforts au niveau du plancher du véhicule automobile qu’il équipe et permet de maintenir le plancher rigide. Ainsi, cette solution permet de préserver les batteries électriques du véhicule automobile situées sous le plancher dit véhicule automobile électrique, tout en étant simple à mettre en oeuvre. Le système de renfort selon l’invention présente l’avantage de pallier les inconvénients cités plus haut, sans avoir à apporter de modification importante au plancher qu’il équipe. [18] Such a reinforcement system, by combining a shock absorption function intended to be implemented upstream of a shock dissipation function, makes it possible to reinforce the floor of a motor vehicle. Such a reinforcement system improves the distribution of forces at the level of the floor of the motor vehicle that it equips and makes it possible to maintain the floor rigid. Thus, this solution makes it possible to preserve the electric batteries of the motor vehicle located under the floor of said electric motor vehicle, while being simple to implement. The reinforcement system according to the invention has the advantage of overcoming the drawbacks mentioned above, without having to make any significant modification to the floor that it equips.
[19] Le système de renfort conforme au premier aspect de l’invention comprend avantageusement au moins un des perfectionnements ci-dessous, les caractéristiques techniques formant ces perfectionnements pouvant être prises seules ou en combinaison : [19] The reinforcement system in accordance with the first aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:
[20] - la zone d’absorption comporte au moins un bloc d’absorption configuré pour se déformer à effort constant, chaque au moins un bloc d’absorption étant solidaire de la plaque supérieure. Dans la zone d’absorption, le au moins un bloc d’absorption est configuré pour pouvoir absorber un choc. Le au moins un bloc d’absorption est configuré pour être déformée suite au choc pour absorber ledit choc. On comprend que le au moins un bloc d’absorption est configuré pour pouvoir absorber un effort de compression consécutif à un « choc latéral poteau ». Autrement dit, le au moins un bloc d’absorption est configuré pour pouvoir absorber un choc latéral contre une surface étroite, telle qu’un obstacle fixe prenant la forme d’un arbre ou d’un poteau. Ainsi, le au moins un bloc d’absorption permet d’absorber un choc par compression pour préserver tout élément situé latéralement en arrière dudit de la zone d’absorption. Notamment, dans le cas d’un véhicule automobile électrique équipé de l’ensemble absorbeur de chocs selon
l’invention, le au moins un bloc d’absorption permet de protéger des batteries électriques du véhicule automobile situées sous un plancher dit véhicule automobile électrique ; [20] - the absorption zone comprises at least one absorption block configured to deform at constant force, each at least one absorption block being integral with the upper plate. In the absorption zone, the at least one absorption block is configured to be able to absorb a shock. The at least one absorption block is configured to be deformed following the shock to absorb said shock. It is understood that the at least one absorption block is configured to be able to absorb a compressive force resulting from a “post side impact”. In other words, the at least one absorption block is configured to be able to absorb a side impact against a narrow surface, such as a fixed obstacle taking the form of a tree or a pole. Thus, the at least one absorption block makes it possible to absorb a shock by compression to preserve any element located laterally behind said absorption zone. In particular, in the case of an electric motor vehicle equipped with the shock absorber assembly according to according to the invention, the at least one absorption block makes it possible to protect electric batteries of the motor vehicle located under a floor called an electric motor vehicle;
[21] - chaque bloc d’absorption est formé d’une structure alvéolaire. On comprend qu’un tel bloc d’absorption a un profilé présentant plusieurs cellules fermées. Un tel bloc d’absorption facilite la déformation par compression permettant de dissiper l’effort de compression induit par un choc. Par exemple, chaque bloc d’absorption est formé d’une structure lattice creuse. Un tel bloc d’absorption est optimisé pour pouvoir se comprimer ; [21] - each absorption block is made up of an alveolar structure. It is understood that such an absorption block has a profile with several closed cells. Such an absorption block facilitates the deformation by compression allowing to dissipate the compressive force induced by an impact. For example, each absorption block is formed of a hollow lattice structure. Such an absorption block is optimized to be able to compress;
[22] - chaque bloc d’absorption est formée d’une structure en nid d’abeille ; [22] - each absorption block is formed of a honeycomb structure;
[23] - chaque bloc d’absorption est formé d’un matériau déformable, tel que par exemple une mousse synthétique, préférentiellement dure. Chaque bloc d’absorption est pourvu d’élasticité, en ce sens que leur caractère déformable résulte d’une extension ou d’une compaction de leur matière élastique. Un tel bloc d’absorption autorise avantageusement d’y ménager d’un passage destiné au passage et à la protection d’un faisceau électrique ; [23] - each absorption block is made of a deformable material, such as synthetic foam, preferably hard. Each absorption block is endowed with elasticity, in the sense that their deformable character results from an extension or a compaction of their elastic material. Such an absorption block advantageously makes it possible to provide a passage therein intended for the passage and protection of an electrical harness;
[24] - par exemple, chaque bloc d’absorption est obtenu par impression 3D. Ce procédé de formage industriel permet d’obtenir à moindre coût un grand nombre d’unités identiques en volume par un ajout de matière en couches successives à partir d’une modélisation informatique en trois dimensions, notamment conçue à partir d’un outil de conception assistée par ordinateur aussi appelé CAO. Un exemple d’impression 3D est par polymérisation laser dans une cuve résine, ou en mode additif. Alternativement, chaque bloc d’absorption est obtenu par moulage. Ce procédé de formage industriel permet d’obtenir à moindre coût un grand nombre d’unités identiques par répétition de l’utilisation d’un même moule ; [24] - for example, each absorption block is obtained by 3D printing. This industrial forming process makes it possible to obtain at a lower cost a large number of identical units in volume by adding material in successive layers from three-dimensional computer modeling, in particular designed from a design tool. computer aided also called CAD. An example of 3D printing is by laser polymerization in a resin tank, or in additive mode. Alternatively, each absorption block is obtained by molding. This industrial forming process makes it possible to obtain a large number of identical units at a lower cost by repeating the use of the same mould;
[25] - la zone d’absorption est fixée solidairement de manière non détachable à la plaque supérieur. Par « non détachable », on entend que la zone d’absorption est fixée de façon définitive à la plaque supérieure, la zone d’absorption et la plaque supérieure ne pouvant être séparées l’une de l’autre que par destruction et/ou endommagement d’une partie de la zone d’absorption et/ou d’une partie de la plaque supérieure. Un moyen de fixation non détachable est par exemple par collage ou par soudage ;
[26] - la zone de renforcement rigide comporte au moins un organe nervuré de renforcement solidaire de la plaque supérieure, chaque organe nervuré s’étendant en saille depuis la plaque supérieure et s’étendant longitudinalement depuis la zone d’absorption et en direction d’un bord opposé de la plaque supérieure. Le au moins un organe nervuré est configuré pour renforcer la robustesse aux efforts mécaniques pouvant être imposés à la zone de renforcement. Notamment, Le au moins un organe nervuré est configuré pour renforcer la robustesse de la zone de renforcement au regard d’un effort correspondant à un choc par compression. Le au moins un organe nervuré est en saillie de la plaque supérieure et permettent de maintenir la plaque supérieure fixée relativement à la zone de renforcement malgré un choc par compression ; [25] - the absorption zone is solidly fixed in a non-detachable manner to the upper plate. By "non-detachable", it is meant that the absorption zone is permanently fixed to the upper plate, the absorption zone and the upper plate being able to be separated from each other only by destruction and/or damage to part of the absorption zone and/or part of the top plate. A non-detachable fastening means is for example by gluing or by welding; [26] - the rigid reinforcement zone comprises at least one ribbed reinforcement member integral with the upper plate, each ribbed member projecting from the upper plate and extending longitudinally from the absorption zone and in the direction of 'an opposite edge of the top plate. The at least one ribbed member is configured to reinforce the robustness to the mechanical forces that may be imposed on the reinforcement zone. In particular, the at least one ribbed member is configured to reinforce the robustness of the reinforcement zone with regard to a force corresponding to a shock by compression. The at least one ribbed member projects from the upper plate and makes it possible to maintain the upper plate fixed relative to the reinforcement zone despite a compression shock;
[27] - chaque organe nervuré comporte au moins deux nervures s’étendant parallèlement l’une à l’autre et présentant un profil transverse rectangulaire. Les au moins deux nervures sont configurées pour renforcer la robustesse aux efforts mécaniques pouvant être imposés à l’organe nervuré. Notamment, les au moins deux nervures sont configurées pour renforcer la robustesse de l’organe nervuré au regard d’un effort correspondant à un choc par compression. Les au moins deux nervures sont en saillie de la plaque supérieure et permettent de maintenir la plaque supérieure fixée relativement à la zone de renforcement malgré un choc par compression. Un tel organe nervuré à au moins deux nervures permet de renforcer la zone de renforcement ; [27] - each ribbed organ has at least two ribs running parallel to each other and having a rectangular transverse profile. The at least two ribs are configured to enhance robustness to mechanical stresses that may be imposed on the ribbed member. In particular, the at least two ribs are configured to reinforce the robustness of the ribbed member with regard to a force corresponding to a shock by compression. The at least two ribs project from the upper plate and make it possible to maintain the upper plate fixed relative to the reinforcement zone despite a shock by compression. Such a ribbed member with at least two ribs makes it possible to reinforce the reinforcement zone;
[28] - chaque organe nervuré est formée d’un matériau composite composant un matériau plastique renforcé avec un matériau fibreux. Le matériau fibreux augmente la rigidité du matériau plastique. Un tel matériau composite chargé de fibres a des propriétés mécaniques de résistance aux déformations renforcées ; [28] - each ribbed member is made of a composite material consisting of a plastic material reinforced with a fibrous material. The fibrous material increases the rigidity of the plastic material. Such a fiber-filled composite material has reinforced mechanical properties of resistance to deformation;
[29] - dans le matériau composite formant chaque organe nervuré, le matériau plastique est par exemple du polypropylène ; [29] - in the composite material forming each ribbed member, the plastic material is for example polypropylene;
[30] - dans le matériau composite formant chaque organe nervuré, le matériau fibreux est par exemple du PMC, pour l’acronyme anglais « Phenolic Moulding Compounds » ou du SMC, pour l’acronyme anglais « Sheet Moulding Compounds » ;
[31 ] - la zone de renforcement est fixée solidairement de manière non détachable à la plaque supérieure. Par « non détachable », on entend que la zone de renforcement est fixée de façon définitive à la plaque supérieure, la zone de renforcement et la plaque supérieure ne pouvant être séparées l’une de l’autre que par destruction et/ou endommagement d’une partie de la zone de renforcement et/ou d’une partie de la plaque supérieure. Un moyen de fixation non détachable est par exemple par collage ou par soudage ; [30] - in the composite material forming each ribbed member, the fibrous material is for example PMC, for the English acronym “Phenolic Molding Compounds” or SMC, for the English acronym “Sheet Molding Compounds”; [31] - the reinforcement zone is integrally fixed in a non-detachable manner to the upper plate. By "non-detachable", it is meant that the reinforcement zone is permanently fixed to the upper plate, the reinforcement zone and the upper plate being able to be separated from each other only by destruction and/or damage to part of the reinforcement area and/or part of the top plate. A non-detachable fastening means is for example by gluing or by welding;
[32] - l’au moins un organe nervuré comporte au moins un tube métallique logé entre deux nervures adjacentes de l’organe nervuré, chaque au moins un tube métallique s’étendant parallèlement auxdites nervures. Le au moins un tube métallique est configuré pour renforcer la robustesse aux efforts mécaniques pouvant être imposés à l’organe nervuré, en complément de la robustesse conférée à l’organe nervuré par les deux nervures. Notamment, le au moins un tube métallique est configuré pour renforcer la robustesse de l’organe nervuré au regard d’un effort correspondant à un choc par compression. Le au moins un tube métallique est en saillie de la plaque supérieure et permettent de maintenir la plaque supérieure fixée relativement à la zone de renforcement malgré un choc par compression. On comprend que le tube métallique est un renfort l’organe nervuré ayant une rigidité accrue par rapport aux nervures adjacentes. Avantageusement, chaque tube est de forme cylindrique. Une section transverse de chaque tube est formée par un contour fermé, par exemple de forme circulaire ou polynomiale. De manière avantageuse encore, la section transverse de chaque tube est invariante en forme et en dimension entre deux extrémités longitudinales dudit tube ; [32] - the at least one ribbed member comprises at least one metal tube housed between two adjacent ribs of the ribbed member, each at least one metal tube extending parallel to said ribs. The at least one metal tube is configured to reinforce the robustness to the mechanical forces that may be imposed on the ribbed member, in addition to the robustness conferred on the ribbed member by the two ribs. In particular, the at least one metal tube is configured to reinforce the robustness of the ribbed member with regard to a force corresponding to a shock by compression. The at least one metal tube projects from the upper plate and makes it possible to maintain the upper plate fixed relative to the reinforcement zone despite a shock by compression. It is understood that the metal tube is a reinforcement the ribbed member having increased rigidity compared to the adjacent ribs. Advantageously, each tube is cylindrical in shape. A transverse section of each tube is formed by a closed contour, for example of circular or polynomial shape. Also advantageously, the cross section of each tube is invariant in shape and in dimension between two longitudinal ends of said tube;
[33] - chaque tube métallique s’étend depuis une face d’un bloc d’absorption et en direction du bord opposé de la plaque supérieure ; [33] - each metal tube extends from one face of an absorption block and towards the opposite edge of the top plate;
[34] - dans un premier mode de réalisation, chaque tube métallique est monté en force entre deux nervures adjacentes. Dans un deuxième mode de réalisation alternatif au premier mode de réalisation, chaque tube métallique est fixé solidairement et de manière non détachable à la plaque supérieure. Par « non détachable », on entend que chaque tube métallique est fixé de façon définitive à la plaque supérieure, chaque tube métallique et la plaque supérieure ne pouvant être séparées l’un de l’autre que par destruction et/ou endommagement d’une
partie de chaque tube métallique et/ou d’une partie de la plaque supérieure. Un moyen de fixation non détachable est par exemple par collage ou par soudage ; [34] - in a first embodiment, each metal tube is force-fitted between two adjacent ribs. In a second alternative embodiment to the first embodiment, each metal tube is fixed integrally and in a non-detachable manner to the upper plate. By "non-detachable", it is meant that each metal tube is permanently fixed to the upper plate, each metal tube and the upper plate being able to be separated from each other only by destruction and/or damage to a part of each metal tube and/or part of the top plate. A non-detachable fastening means is for example by gluing or by welding;
[35] Selon un deuxième aspect de l’invention, il est proposé un arrangement de plancher pour véhicule automobile, l’arrangement comportant (i) un plancher renforcé par deux traverses d’assise s’étendant latéralement d’un bord à l’autre du plancher et (ii) un système de renfort conforme au premier aspect de l’invention ou selon l’un quelconque de ses perfectionnements, le système de renfort étant fixé solidairement au plancher au niveau desdites traverses d’assise. [35] According to a second aspect of the invention, there is proposed a floor arrangement for a motor vehicle, the arrangement comprising (i) a floor reinforced by two seat crosspieces extending laterally from one edge to the another of the floor and (ii) a reinforcement system in accordance with the first aspect of the invention or according to any one of its improvements, the reinforcement system being firmly fixed to the floor at the level of the said seat crosspieces.
[36] Dans l’arrangement de plancher conforme au deuxième aspect de l’invention, le plancher forme une surface plane destinée à former un fond de caisse d’un véhicule automobile. [36] In the floor arrangement according to the second aspect of the invention, the floor forms a flat surface intended to form a bottom of the body of a motor vehicle.
[37] Dans l’arrangement de plancher conforme au deuxième aspect de l’invention, les deux traverses d’assise et le système de renfort renforcent le plancher au regard d’efforts mécaniques pouvant être imposés au plancher. En étant renforcé par deux traverses d’assise et par le système de renfort, l’arrangement de plancher selon l’invention se veut économique en matériaux, s’affranchissant de l’ajout de traverses supplémentaires pour renforcer le plancher. Un tel arrangement de plancher selon l’invention est également plus léger. [37] In the floor arrangement in accordance with the second aspect of the invention, the two seat rails and the reinforcement system reinforce the floor against mechanical stresses that may be imposed on the floor. By being reinforced by two seat crosspieces and by the reinforcement system, the floor arrangement according to the invention is intended to be economical in terms of materials, dispensing with the addition of additional crosspieces to reinforce the floor. Such a floor arrangement according to the invention is also lighter.
[38] Le système de renfort a des formes et des dimensions complémentaires à celles des traverses d’assise afin de se loger dans des zones en dépression formées au niveau du plancher et des traverses d’assise. Un tel système de renfort est peu encombrant et concours à un arrangement de plancher compact, sans incidence sur l’architecture intérieure d’un habitacle du véhicule automobile qu’il équipe. [38] The reinforcement system has shapes and dimensions that complement those of the seat rails in order to fit into the depression zones formed at the level of the floor and the seat rails. Such a reinforcement system is compact and contributes to a compact floor arrangement, without affecting the interior architecture of a passenger compartment of the motor vehicle that it equips.
[39] Dans l’arrangement de plancher conforme au deuxième aspect de l’invention, la zone d’absorption du système de renfort est située au niveau d’une extrémité extérieure des traverses d’assise, et la zone de renforcement s’étend parallèlement aux traverses d’assise. Dans le véhicule automobile équipé de l’arrangement de plancher conforme au deuxième aspect de l’invention, l’extrémité extérieure est celle situé au niveau d’un flan latéral du véhicule automobile. Ainsi, l’invention conforme à son deuxième aspect permet, consécutivement à un « choc latéral poteau » survenant au niveau d’un flanc latéral du véhicule automobile
équipé de l’arrangement de plancher, d’absorber dans un premier temps un effort de compression au niveau de la zone d’absorption, puis dans un deuxième temps un reliquat d’effort non absorbé par la zone d’absorption est transmis dans la zone de renforcement. Un tel arrangement de plancher améliore la distribution des efforts au niveau du plancher du véhicule automobile qu’il équipe et permet de maintenir ledit plancher rigide. [39] In the floor arrangement according to the second aspect of the invention, the absorption zone of the reinforcement system is located at an outer end of the seat rails, and the reinforcement zone extends parallel to the seat rails. In the motor vehicle equipped with the floor arrangement according to the second aspect of the invention, the outer end is that located at the level of a side wall of the motor vehicle. Thus, the invention in accordance with its second aspect allows, following a "post side impact" occurring at the level of a side flank of the motor vehicle equipped with the floor arrangement, to firstly absorb a compressive force at the level of the absorption zone, then in a second phase a residual force not absorbed by the absorption zone is transmitted into the reinforcement area. Such a floor arrangement improves the distribution of forces at the level of the floor of the motor vehicle that it equips and makes it possible to maintain said floor rigid.
[40] L’arrangement de plancher pour véhicule automobile conforme au deuxième aspect de l’invention comprend avantageusement au moins un des perfectionnements ci-dessous, les caractéristiques techniques formant ces perfectionnements pouvant être prises seules ou en combinaison : [40] The floor arrangement for a motor vehicle in accordance with the second aspect of the invention advantageously comprises at least one of the improvements below, the technical characteristics forming these improvements being able to be taken alone or in combination:
[41] - la zone de renforcement du système de renfort comporte (i) un organe nervuré de renforcement frontal qui s’étend longitudinalement en avant d’une traverse d’assise frontale, (ii) un organe nervuré de renforcement arrière qui s’étend longitudinalement en arrière d’une traverse d’assise arrière, (iii) un premier organe nervuré de renforcement intermédiaire qui s’étend entre deux parties terminales de la traverse d’assise frontale, (iv) un deuxième organe nervuré de renforcement intermédiaire qui s’étend entre deux parties terminales de la traverse d’assise arrière, (v) un troisième organe nervuré de renforcement intermédiaire située entre la traverse d’assise arrière et la traverse d’assise frontale. L’arrangement de plancher selon l’invention comprenant une telle zone de renforcement met à profit un ensemble d’espaces, laissés vacants dans les arrangements de plancher de l’art antérieur, en amont, en aval et entre les traverses d’assise frontal ; [41] - the reinforcement zone of the reinforcement system comprises (i) a front reinforcement ribbed member which extends longitudinally in front of a front seat cross member, (ii) a rear reinforcement ribbed member which extends extends longitudinally behind a rear seat cross member, (iii) a first intermediate reinforcing ribbed member which extends between two end portions of the front seat crossmember, (iv) a second intermediate reinforcing ribbed member which extends between two end portions of the rear seat cross member, (v) a third intermediate reinforcement ribbed member located between the rear seat cross member and the front seat cross member. The floor arrangement according to the invention comprising such a reinforcement zone takes advantage of a set of spaces, left vacant in the floor arrangements of the prior art, upstream, downstream and between the front seat crosspieces ;
[42] - la zone d’absorption du système de renfort comporte, (i) un bloc d’absorption frontal situé dans le prolongement de l’organe nervuré de renforcement frontal au niveau d’une partie frontale du plancher, (ii) un bloc d’absorption arrière situé dans le prolongement de l’organe nervuré de renforcement arrière au niveau d’une partie arrière du plancher, (iii) un premier bloc d’absorption situé dans le prolongement du premier organe nervuré de renforcement intermédiaire, (iv) un deuxième bloc d’absorption situé dans le prolongement du deuxième organe nervuré de renforcement intermédiaire, (v) un troisième bloc d’absorption situé dans le prolongement du troisième organe nervuré de renforcement intermédiaire.
[43] - le premier bloc d’absorption et le deuxième bloc d’absorption sont identiques On entend par « identique » le fait qu’ils aient les mêmes dimensions et la même forme. Avantageusement, on comprend que deux éléments « identiques » ont les mêmes caractéristiques mécaniques ; [42] - the absorption zone of the reinforcement system comprises, (i) a front absorption block located in the extension of the front reinforcement ribbed member at the level of a front part of the floor, (ii) a rear absorption block located in the extension of the rear reinforcement ribbed member at the level of a rear part of the floor, (iii) a first absorption block located in the extension of the first intermediate reinforcement ribbed member, (iv ) a second absorption block located in the extension of the second intermediate reinforcement ribbed member, (v) a third absorption block located in the extension of the third intermediate reinforcement ribbed member. [43] - the first absorption block and the second absorption block are identical “Identical” means that they have the same dimensions and the same shape. Advantageously, it is understood that two “identical” elements have the same mechanical characteristics;
[44] - le bloc d’absorption frontal et le bloc d’absorption arrière sont identiques entre eux, et sont différents du premier bloc d’absorption et du deuxième bloc d’absorption. On entend par « identique » le fait qu’ils aient les mêmes dimensions et la même forme, et par « différents » le fait qu’ils aient des dimensions distinctes et une forme distincte. Avantageusement, on comprend que deux éléments « identiques » ont les mêmes caractéristiques mécaniques, et deux éléments « différents » ont des caractéristiques mécaniques distinctes ; [44] - the frontal absorption block and the rear absorption block are identical to each other, and are different from the first absorption block and the second absorption block. “Identical” means that they have the same dimensions and the same shape, and “different” means that they have different dimensions and a different shape. Advantageously, it is understood that two “identical” elements have the same mechanical characteristics, and two “different” elements have distinct mechanical characteristics;
[45] - le troisième bloc d’absorption est différent de tous les autres blocs d’absorption. On entend par « différents » le fait qu’il ait des dimensions distinctes et une forme distincte des autres blocs d’absorption. Avantageusement, on comprend que deux éléments « différents » ont des caractéristiques mécaniques distinctes ; [45] - the third absorption block is different from all other absorption blocks. “Different” means that it has distinct dimensions and a distinct shape from the other absorption blocks. Advantageously, it is understood that two “different” elements have distinct mechanical characteristics;
[46] - la zone d’absorption du système de renfort comporte un passage pour un faisceau électrique du véhicule automobile, le passage étant formé par une cavité configurée pour pouvoir loger le faisceau électrique. Une telle zone d’absorption permet de protéger le faisceau électrique logé dans le passage. [46] - the absorption zone of the reinforcement system comprises a passage for an electrical harness of the motor vehicle, the passage being formed by a cavity configured to be able to accommodate the electrical harness. Such an absorption zone makes it possible to protect the electrical harness housed in the passage.
[47] Selon un troisième aspect de l’invention, il est proposé un véhicule automobile comportant un arrangement de plancher conforme au deuxième aspect de l’invention ou selon l’un quelconque de ses perfectionnements. [47] According to a third aspect of the invention, a motor vehicle is proposed comprising a floor arrangement in accordance with the second aspect of the invention or according to any of its improvements.
[48] Dans le véhicule automobile conforme au troisième aspect de l’invention, le système de renfort, en associant une fonction d’absorption de choc destinée à être mise en oeuvre en amont d’une fonction de dissipation du choc, permet de renforcer le plancher dudit véhicule automobile. Dans le véhicule automobile conforme au troisième aspect de l’invention, la distribution des efforts au niveau du plancher permet de maintenir le plancher rigide, notamment lors d’un « choc latéral poteau », autrement dit en cas d’un choc survenant au niveau d’un flanc latéral du véhicule automobile contre une surface étroite, telle qu’un obstacle fixe prenant la forme d’un arbre ou d’un poteau.
[49] Le véhicule automobile conforme au deuxième aspect de l’invention est par exemple de type BEV pour l’acronyme anglais Battery Electric Vehicle, dotés d'une motorisation électrique. Le véhicule automobile conforme au deuxième aspect de l’invention est par exemple de type PHEV, pour l’acronyme anglais Plug-in Hybrid Electric, dotés à la fois d'une motorisation thermique et d'une motorisation électrique. Dans un tel véhicule automobile, l’arrangement de plancher est situé au niveau des batteries électriques dudit véhicule automobile. Ainsi, cette solution permet de préserver les batteries électriques du véhicule automobile situées sous le plancher dit véhicule automobile électrique, tout en étant simple à mettre en œuvre. [48] In the motor vehicle according to the third aspect of the invention, the reinforcement system, by combining a shock absorption function intended to be implemented upstream of a shock dissipation function, makes it possible to reinforce the floor of said motor vehicle. In the motor vehicle according to the third aspect of the invention, the distribution of the forces at the level of the floor makes it possible to maintain the rigid floor, in particular during a "post side impact", in other words in the event of an impact occurring at the level of a lateral side of the motor vehicle against a narrow surface, such as a fixed obstacle taking the form of a tree or a post. [49] The motor vehicle according to the second aspect of the invention is for example of the BEV type for the English acronym Battery Electric Vehicle, equipped with an electric motor. The motor vehicle in accordance with the second aspect of the invention is for example of the PHEV type, for the English acronym Plug-in Hybrid Electric, equipped with both a combustion engine and an electric engine. In such a motor vehicle, the floor arrangement is located at the electric batteries of said motor vehicle. Thus, this solution makes it possible to preserve the electric batteries of the motor vehicle located under the floor of said electric motor vehicle, while being simple to implement.
[50] Des modes de réalisation variés de l’invention sont prévus, intégrant selon l’ensemble de leurs combinaisons possibles les différentes caractéristiques optionnelles exposées ici. [50] Various embodiments of the invention are provided, integrating, according to all of their possible combinations, the various optional features set out here.
[51] D’autres caractéristiques et avantages de l’invention apparaîtront encore au travers de la description qui suit d’une part, et de plusieurs exemples de réalisation donnés à titre indicatif et non limitatif en référence aux dessins schématiques annexés d’autre part, sur lesquels : [51] Other characteristics and advantages of the invention will become apparent through the description which follows on the one hand, and several examples of embodiment given by way of indication and not limitation with reference to the appended schematic drawings on the other hand. , on which ones :
[52] [Fig.1 ] illustre une vue schématique d’un véhicule automobile conforme au troisième aspect de l’invention ; [52] [Fig.1] illustrates a schematic view of a motor vehicle according to the third aspect of the invention;
[53] [Fig.2] illustre une vue schématique d’un système de renfort conforme au premier aspect de l’invention dans une première variante de réalisation ; [53] [Fig.2] illustrates a schematic view of a reinforcement system according to the first aspect of the invention in a first variant embodiment;
[54] [Fig.3] illustre une vue schématique d’un arrangement de plancher conforme au deuxième aspect de l’invention équipé du système de renfort montré en FIGURE 2 ; [54] [Fig.3] illustrates a schematic view of a floor arrangement according to the second aspect of the invention equipped with the reinforcement system shown in FIGURE 2;
[55] [Fig.4] illustre une première vue en coupe transversale du système de renfort montré en FIGURE 2 ; [55] [Fig.4] illustrates a first cross-sectional view of the reinforcement system shown in FIGURE 2;
[56] [Fig.5] illustre une deuxième vue en coupe longitudinale du système de renfort montré en FIGURE 2 ; [56] [Fig.5] illustrates a second longitudinal sectional view of the reinforcement system shown in FIGURE 2;
[57] [Fig.6] illustre une vue schématique d’un arrangement de plancher conforme au deuxième aspect de l’invention équipé d’une deuxième variante de réalisation du système de renfort conforme au premier aspect de l’invention.
[58] Bien entendu, les caractéristiques, les variantes et les différentes formes de réalisation de l'invention peuvent être associées les unes avec les autres, selon diverses combinaisons, dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres. On pourra notamment imaginer des variantes de l’invention ne comprenant qu’une sélection de caractéristiques décrites par la suite de manière isolées des autres caractéristiques décrites, si cette sélection de caractéristiques est suffisante pour conférer un avantage technique ou pour différencier l’invention par rapport à l’état de la technique antérieur. [57] [Fig.6] illustrates a schematic view of a floor arrangement according to the second aspect of the invention equipped with a second embodiment of the reinforcement system according to the first aspect of the invention. [58] Of course, the features, variants and different embodiments of the invention may be associated with each other, in various combinations, insofar as they are not mutually exclusive or mutually exclusive. In particular, variants of the invention may be imagined comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from to the state of the prior art.
[59] En particulier toutes les variantes et tous les modes de réalisation décrits sont combinables entre eux si rien ne s’oppose à cette combinaison sur le plan technique. [59] In particular, all the variants and all the embodiments described can be combined with each other if nothing prevents this combination from a technical point of view.
[60] Sur les figures, les éléments communs à plusieurs figures conservent la même référence. [60] In the figures, the elements common to several figures retain the same reference.
[61] La FIGURE 1 illustre une vue schématique d’un véhicule automobile 1 conforme au troisième aspect de l’invention, vu du dessus. Dans la suite de la description, on définit un référentiel dans lequel sont définis un axe longitudinal OX, un axe transversal OY et un axe vertical OZ. L’axe longitudinal OX correspond à une trajectoire du véhicule automobile 1 lorsqu’il est en marche avant, en ligne droite et sur une route plate. L’axe longitudinal OX correspond à une direction allant de l’avant à l’arrière du véhicule automobile 1 , et il est orienté depuis l’avant vers l’arrière du véhicule automobile 1. On définit également une direction longitudinale parallèle à l’axe longitudinal OX, les adjectifs « avant », « arrière » ou « frontal » se réfèrent à cette direction de référence, le terme « longueur » également. L’axe transversal OY correspond à l’axe autour desquels des roues du véhicule automobile 1 tournent, et le sens de l’axe OY est orienté depuis un côté conducteur vers un côté passager, dans la norme non anglo-saxonne. On définit également une direction transversale parallèle à l’axe transversal OY, et les adjectifs « latéral » ou « transversal » se réfèrent à cette direction de référence, le terme « largeur » également. L’axe vertical OZ est un axe perpendiculaire simultanément à l’axe OX et à l’axe OY, et qui est orienté depuis un plancher du véhicule automobile 1 vers un toit dudit véhicule automobile 1 , les adjectifs « supérieur » et « inférieur » se réfèrent à cette direction de référence, le terme « hauteur » également.
[62] Dans la FIGURE 1 , le véhicule automobile 1 conforme au troisième aspect de l’invention comporte un arrangement 2 de plancher 3 conforme au deuxième aspect de l’invention. L’arrangement 2 de plancher 3 comporte un plancher 3, deux traverses 4, 20 d’assise renforçant le plancher 3 et un système de renfort 5 pour plancher 3 conforme au premier aspect de l’invention. Le plancher 3 comprend des bords 6 latéraux entre lesquels s’étendent les deux traverses 4, 20 d’assise selon la direction transversale. Le plancher 3 comprend en outre une partie frontale 7 en amont des traverses 4, 20 d’assise et une partie arrière 8 en aval des traverses 4, 20 d’assise, relativement à la direction longitudinale. [61] FIGURE 1 illustrates a schematic view of a motor vehicle 1 according to the third aspect of the invention, seen from above. In the remainder of the description, a frame of reference is defined in which a longitudinal axis OX, a transverse axis OY and a vertical axis OZ are defined. The longitudinal axis OX corresponds to a trajectory of the motor vehicle 1 when it is in forward motion, in a straight line and on a flat road. The longitudinal axis OX corresponds to a direction running from the front to the rear of the motor vehicle 1, and it is oriented from the front to the rear of the motor vehicle 1. A longitudinal direction parallel to the longitudinal axis OX, the adjectives "front", "rear" or "frontal" refer to this reference direction, the term "length" also. The transverse axis OY corresponds to the axis around which the wheels of the motor vehicle 1 rotate, and the direction of the axis OY is oriented from a driver's side to a passenger's side, in the non-Anglo-Saxon standard. A transverse direction parallel to the transverse axis OY is also defined, and the adjectives “lateral” or “transverse” refer to this reference direction, the term “width” also. The vertical axis OZ is an axis perpendicular simultaneously to the axis OX and to the axis OY, and which is oriented from a floor of the motor vehicle 1 towards a roof of said motor vehicle 1, the adjectives “upper” and “lower” refer to this reference direction, the term "height" also. [62] In FIGURE 1, the motor vehicle 1 according to the third aspect of the invention comprises an arrangement 2 of floor 3 according to the second aspect of the invention. The arrangement 2 of the floor 3 comprises a floor 3, two crosspieces 4, 20 for the seat reinforcing the floor 3 and a reinforcement system 5 for the floor 3 in accordance with the first aspect of the invention. The floor 3 comprises lateral edges 6 between which the two crosspieces 4, 20 of the seat extend in the transverse direction. The floor 3 further comprises a front part 7 upstream of the crosspieces 4, 20 of the seat and a rear part 8 downstream of the crosspieces 4, 20 of the seat, relative to the longitudinal direction.
[63] Dans le véhicule automobile 1 conforme au troisième aspect de l’invention illustré en FIGURE 1 , le système de renfort 5 selon l’invention comporte une plaque supérieure 9, une zone d’absorption 10 de choc et une zone de renforcement 11. Le plancher 3 est compris entre l’arrangement 2 de plancher 3 et un bloc batterie 12 du véhicule automobile 1 qui est de type électrique. Le plancher 3 renforcé par le système de renfort 5 selon l’invention permet de préserver le bloc batterie 12 du véhicule automobile 1 lors d’un choc de compression. Le système de renfort 5 et les traverses 4, 20 d’assise sont montés, relativement à la direction transversale, en arrière d’un longeron latéral 13 du véhicule automobile 1. La zone d’absorption 10 est proximale au longeron latéral 13 du véhicule automobile 1 et la zone de renforcement 11 est distale au longeron latéral 13 du véhicule automobile 1. [63] In the motor vehicle 1 according to the third aspect of the invention illustrated in FIGURE 1, the reinforcement system 5 according to the invention comprises an upper plate 9, a shock absorption zone 10 and a reinforcement zone 11 The floor 3 is between the arrangement 2 of the floor 3 and a battery pack 12 of the motor vehicle 1 which is of the electric type. The floor 3 reinforced by the reinforcement system 5 according to the invention makes it possible to preserve the battery unit 12 of the motor vehicle 1 during a compression shock. The reinforcement system 5 and the cross-members 4, 20 of the seat are mounted, relative to the transverse direction, behind a side member 13 of the motor vehicle 1. The absorption zone 10 is proximal to the side member 13 of the vehicle motor vehicle 1 and the reinforcement zone 11 is distal to the side sill 13 of the motor vehicle 1.
[64] Les FIGURES 2 à 6 illustrent le système de renfort 5 conforme au premier aspect de l’invention. Une première variante de réalisation du système de renfort 5 conforme au premier aspect de l’invention est montrée en FIGURE 2 à 5, et une deuxième variante de réalisation est montrée en FIGURE 6. La FIGURE 4 illustre une première coupe transversale AA, illustrée en FIGURE 2, du système de renfort 5 montré en FIGURE 2 et la FIGURE 5 illustre une deuxième coupe longitudinale BB, illustrée en FIGURE 2, du système de renfort 5 montré en FIGURE 2. En FIGURES 2, 3 et 6, le système de renfort 5 est illustré vu du dessus, sans sa plaque supérieure 9 afin de faciliter la compréhension desdites FIGURES. Dans la FIGURE 3 et la FIGURE 6, les traverses 4, 20 d’assise sont représentées pour illustrer un positionnement relatif des traverses 4, 20 d’assise et du système de renfort 5 selon l’invention. Les FIGURES 3 et 6 illustrent en particulier une vue schématique de l’arrangement 2 de plancher 3 conforme au deuxième aspect de
l’invention équipé du système de renfort 5 selon l’une de ses variantes de réalisation. [64] FIGURES 2 to 6 illustrate the reinforcement system 5 according to the first aspect of the invention. A first alternative embodiment of the reinforcement system 5 according to the first aspect of the invention is shown in FIGURE 2 to 5, and a second alternative embodiment is shown in FIGURE 6. FIGURE 4 illustrates a first cross section AA, illustrated in FIGURE 2, of the reinforcement system 5 shown in FIGURE 2 and FIGURE 5 illustrates a second longitudinal section BB, illustrated in FIGURE 2, of the reinforcement system 5 shown in FIGURE 2. In FIGURES 2, 3 and 6, the reinforcement system 5 is illustrated seen from above, without its upper plate 9 in order to facilitate the understanding of said FIGURES. In FIGURE 3 and FIGURE 6, the seat rails 4, 20 are shown to illustrate a relative positioning of the seat rails 4, 20 and the reinforcement system 5 according to the invention. FIGURES 3 and 6 illustrate in particular a schematic view of the arrangement 2 of floor 3 in accordance with the second aspect of the invention equipped with the reinforcement system 5 according to one of its variant embodiments.
[65] En référence aux FIGURES 2, 3 et 6, la zone de renforcement 11 comporte au moins un organe nervuré 14, 15, 16, 17, 18 s’étendant longitudinalement depuis la zone d’absorption 10. En l’espèce, la zone de renforcement 11 comprend cinq organes nervurés 14, 15, 16, 17, 18. [65] With reference to FIGURES 2, 3 and 6, the reinforcement zone 11 comprises at least one ribbed member 14, 15, 16, 17, 18 extending longitudinally from the absorption zone 10. In this case, the reinforcement zone 11 comprises five ribbed members 14, 15, 16, 17, 18.
[66] Dans le système de renfort 5 conforme au premier aspect de l’invention illustré en FIGURES 2, 3 et 6, la zone de renforcement 11 comporte un organe nervuré de renforcement frontal 14, un organe nervuré de renforcement arrière 15, un premier organe nervuré de renforcement intermédiaire 16, un deuxième organe nervuré de renforcement intermédiaire 17 et un troisième organe nervuré de renforcement intermédiaire 18. [66] In the reinforcement system 5 according to the first aspect of the invention illustrated in FIGURES 2, 3 and 6, the reinforcement zone 11 comprises a front reinforcement ribbed member 14, a rear reinforcement ribbed member 15, a first intermediate reinforcing rib member 16, a second intermediate reinforcing rib member 17 and a third intermediate reinforcing rib member 18.
[67] Les FIGURES 3 et 6 montrent que l’organe nervuré de renforcement frontal 14 s’étend longitudinalement en avant d’une traverse 4 d’assise frontale. L’organe nervuré de renforcement arrière 15 s’étend longitudinalement en arrière d’une traverse 20 d’assise arrière. Le premier organe nervuré de renforcement intermédiaire 16 s’étend entre deux parties terminales 21 , 22 de la traverse 4 d’assise frontale. Le deuxième organe nervuré de renforcement intermédiaire 17 s’étend entre deux parties terminales 23, 24 de la traverse 20 d’assise arrière. Le troisième organe nervuré de renforcement intermédiaire 18 est situé entre la traverse 20 d’assise arrière et la traverse 4 d’assise frontale. [67] FIGURES 3 and 6 show that the ribbed frontal reinforcement member 14 extends longitudinally in front of a crosspiece 4 of the frontal seat. The rear reinforcing ribbed member 15 extends longitudinally behind a cross member 20 of the rear seat. The first intermediate reinforcement ribbed member 16 extends between two end parts 21, 22 of the crosspiece 4 of the front seat. The second intermediate reinforcement ribbed member 17 extends between two end portions 23, 24 of the cross member 20 of the rear seat. The third intermediate reinforcement ribbed member 18 is located between the cross member 20 of the rear seat and the cross member 4 of the front seat.
[68] En référence aux FIGURES 2, 3 et 6, chaque organe nervuré 14, 15, 16, 17, 18 comporte au moins deux nervures 100, 200, 300 s’étendant parallèlement l’une à l’autre et présentant un profil transverse rectangulaire. [68] Referring to FIGURES 2, 3 and 6, each ribbed member 14, 15, 16, 17, 18 comprises at least two ribs 100, 200, 300 extending parallel to each other and having a profile rectangular transverse.
[69] En l’espèce, dans la première variante de réalisation du système de renfort 5 selon l’invention illustrée en FIGURE 2, l’organe nervuré de renforcement frontal 14 comporte deux nervures 100. L’organe nervuré de renforcement arrière 15 comporte deux nervures 100. Le premier organe nervuré de renforcement intermédiaire 16 comporte six nervures 200, 300. Le deuxième organe nervuré de renforcement intermédiaire 17 comporte six nervures 200, 300. Le troisième organe nervuré de renforcement intermédiaire 18 comporte quatre nervures 100.
[70] En l’espèce, dans la deuxième variante de réalisation du système de renfort 5 selon l’invention illustrée en FIGURE 6, l’organe nervuré de renforcement frontal 14 du système de renfort 5 et l’organe nervuré de renforcement arrière 15 du système de renfort 5 comportent chacun deux nervures 100 et un tube métallique 400 logé entre deux nervures 100 adjacentes de l’organe nervuré 14, 15 considéré. Le troisième organe nervuré de renforcement intermédiaire 18 du système de renfort 5 comporte deux nervures 100 adjacentes et deux tubes métallique 400 logés de part et d’autre des deux nervures 100 adjacentes. Chaque tube métallique 400 s’étend parallèlement aux nervures 100 de l’organe nervuré 14, 15, 18 considéré. Le premier organe nervuré de renforcement intermédiaire 16 comporte six nervures 200, 300. Le deuxième organe nervuré de renforcement intermédiaire 17 comporte six nervures 200, 300. [69] In this case, in the first embodiment of the reinforcement system 5 according to the invention illustrated in FIGURE 2, the ribbed front reinforcement member 14 comprises two ribs 100. The rear reinforcement ribbed member 15 comprises two ribs 100. The first intermediate reinforcing rib member 16 comprises six ribs 200, 300. The second intermediate reinforcing rib member 17 comprises six ribs 200, 300. The third intermediate reinforcing rib member 18 comprises four ribs 100. [70] In this case, in the second embodiment of the reinforcement system 5 according to the invention illustrated in FIGURE 6, the front reinforcement ribbed member 14 of the reinforcement system 5 and the rear reinforcement ribbed member 15 of the reinforcement system 5 each comprise two ribs 100 and a metal tube 400 housed between two adjacent ribs 100 of the ribbed member 14, 15 considered. The third intermediate reinforcement ribbed member 18 of the reinforcement system 5 comprises two adjacent ribs 100 and two metal tubes 400 housed on either side of the two adjacent ribs 100. Each metal tube 400 extends parallel to the ribs 100 of the ribbed member 14, 15, 18 considered. The first intermediate reinforcing rib member 16 comprises six ribs 200, 300. The second intermediate reinforcing rib member 17 comprises six ribs 200, 300.
[71] En référence aux FIGURES 2, 3 et 6, la zone d’absorption 10 du système de renfort 5 selon l’invention comporte au moins un bloc d’absorption 25, 26, 27, 28, 29 configuré pour se déformer à effort constant. En l’espèce, la zone d’absorption 10 comprend cinq blocs d’absorption 25, 26, 27, 28, 29. Chaque bloc d’absorption 25, 26, 27, 28, 29 est formé d’une structure alvéolaire du type d’une structure lattice creuse configurée pour subir une déformation programmée en réponse à un choc survenant latéralement. [71] With reference to FIGURES 2, 3 and 6, the absorption zone 10 of the reinforcement system 5 according to the invention comprises at least one absorption block 25, 26, 27, 28, 29 configured to deform at constant effort. In this case, the absorption zone 10 comprises five absorption blocks 25, 26, 27, 28, 29. Each absorption block 25, 26, 27, 28, 29 is formed of a honeycomb structure of the type of a hollow lattice structure configured to undergo a programmed deformation in response to an impact occurring laterally.
[72] Dans le système de renfort 5 conforme au premier aspect de l’invention illustré en FIGURES 2, 3 et 6, la zone d’absorption 10 du système de renfort 5 comporte un bloc d’absorption frontal 25, un bloc d’absorption arrière 26, un premier bloc d’absorption 27, un deuxième bloc d’absorption 28 et un troisième bloc d’absorption 29. [72] In the reinforcement system 5 according to the first aspect of the invention illustrated in FIGURES 2, 3 and 6, the absorption zone 10 of the reinforcement system 5 comprises a frontal absorption block 25, a block of rear absorption 26, a first absorption block 27, a second absorption block 28 and a third absorption block 29.
[73] La FIGURE 3 montre que le bloc d’absorption frontal 25 est situé dans le prolongement de l’organe nervuré de renforcement frontal 14 au niveau de la partie frontale 7 du plancher 3. Le bloc d’absorption arrière 26 situé dans le prolongement de l’organe nervuré de renforcement arrière 15 au niveau de la partie arrière 8 du plancher 3. Le premier bloc d’absorption 27 est situé dans le prolongement de premier organe nervuré de renforcement intermédiaire 16. Le deuxième bloc d’absorption 28 est situé dans le prolongement du deuxième organe nervuré de renforcement intermédiaire 17. Le troisième bloc d’absorption 29 situé dans le prolongement du troisième organe nervuré de renforcement intermédiaire 18.
[74] En référence aux FIGURES 2, 3 et 6, le premier bloc d’absorption 27 et le deuxième bloc d’absorption 28 sont identiques en forme, en dimension et du point de vue de leurs propriétés mécaniques, notamment dans leur capacité à se déformer. Le bloc d’absorption frontal 25 et le bloc d’absorption arrière 26 sont identiques en forme, en dimension et du point de vue de leurs propriétés mécaniques, notamment dans leur capacité à se déformer. Le bloc d’absorption frontal 25 et le bloc d’absorption arrière 26 sont différents du premier bloc d’absorption 27 et du deuxième bloc d’absorption 28, en forme, en dimension et du point de vue de leurs propriétés mécaniques, notamment dans leur capacité à se déformer. Le troisième bloc d’absorption 29 est différent de tous les autres blocs d’absorption, en forme, en dimension et du point de vue de ses propriétés mécaniques, notamment dans sa capacité à se déformer. [73] FIGURE 3 shows that the front absorption block 25 is located in the extension of the front reinforcement ribbed member 14 at the level of the front part 7 of the floor 3. The rear absorption block 26 located in the extension of the rear reinforcement ribbed member 15 at the level of the rear part 8 of the floor 3. The first absorption block 27 is located in the extension of the first intermediate reinforcement ribbed member 16. The second absorption block 28 is located in the extension of the second intermediate reinforcement ribbed member 17. The third absorption block 29 located in the extension of the third intermediate reinforcement ribbed member 18. [74] With reference to FIGURES 2, 3 and 6, the first absorption block 27 and the second absorption block 28 are identical in shape, in size and from the point of view of their mechanical properties, in particular in their ability to deform. The front absorption block 25 and the rear absorption block 26 are identical in shape, in size and from the point of view of their mechanical properties, in particular in their ability to deform. The front absorption block 25 and the rear absorption block 26 are different from the first absorption block 27 and from the second absorption block 28, in shape, in size and from the point of view of their mechanical properties, in particular in their ability to deform. The third absorption block 29 is different from all the other absorption blocks, in shape, in size and from the point of view of its mechanical properties, in particular in its ability to deform.
[75] Dans le système de renfort 5 selon l’invention illustré en FIGURE 4, la plaque supérieure 9 comporte des organes de fixation 30 au plancher 3 formés de quatre orifices 31. [75] In the reinforcement system 5 according to the invention illustrated in FIGURE 4, the upper plate 9 comprises fasteners 30 to the floor 3 formed of four holes 31.
[76] Dans le système de renfort 5 selon l’invention illustré en FIGURE 4, les blocs d’absorption 25, 26, 27, 28, 29, notamment le troisième bloc d’absorption 29 visible sur la coupe, et les organes nervurés 14, 15, 16, 17, 18, notamment le troisième organe nervuré de renforcement intermédiaire 18 sur la coupe, sont solidaires de la plaque supérieure 9. [76] In the reinforcement system 5 according to the invention illustrated in FIGURE 4, the absorption blocks 25, 26, 27, 28, 29, in particular the third absorption block 29 visible in the section, and the ribbed members 14, 15, 16, 17, 18, in particular the third intermediate reinforcement ribbed member 18 on the section, are integral with the upper plate 9.
[77] Dans le système de renfort 5 selon l’invention illustré en FIGURE 4, la zone de renforcement 11 est solidaire de la plaque supérieure 9 et s’étendant longitudinalement dans le prolongement de la zone d’absorption 10. Les organe nervurés 14, 15, 16, 17, 18 s’étendent longitudinalement depuis la zone d’absorption 10 en direction d’un bord opposé 19 de la plaque supérieure 9. [77] In the reinforcement system 5 according to the invention illustrated in FIGURE 4, the reinforcement zone 11 is secured to the upper plate 9 and extending longitudinally in the extension of the absorption zone 10. The ribbed members 14 , 15, 16, 17, 18 extend longitudinally from the absorption zone 10 towards an opposite edge 19 of the upper plate 9.
[78] La FIGURE 5 montre que les organes nervurés 14, 15, 16, 17, 18 s’étendent en saille depuis une face inférieure 32 de la plaque supérieure 9 selon la direction verticale, la face inférieure 32 étant opposée à une face supérieure 33 de la plaque supérieure 9. Les nervures 100 de l’organe nervuré de renforcement frontal 14, les nervures 100 de l’organe nervuré de renforcement arrière 15 et les nervures 100 du troisième organe nervuré de renforcement intermédiaire 18 ont un profilé identique. Le premier organe nervuré de renforcement intermédiaire 16 et le
deuxième organe nervuré de renforcement intermédiaire 17 ont un profilé identique. Le premier organe nervuré de renforcement intermédiaire 16 et le deuxième organe nervuré de renforcement intermédiaire 17 comprennent deux types de nervures 200, 300, à savoir deux nervures adjacentes intermédiaires 200 comprises entre deux nervures adjacentes 300 avant et deux nervures adjacentes 300 arrière. Les nervures adjacentes intermédiaires 200 ont un bord libre 201 compris entre un bord libre 301 des nervures adjacentes 300 avant et un bord libre 101 des nervures 100 de l’organe nervuré de renforcement frontal 14. [78] FIGURE 5 shows that the ribbed members 14, 15, 16, 17, 18 extend projecting from a lower face 32 of the upper plate 9 in the vertical direction, the lower face 32 being opposite an upper face 33 of the upper plate 9. The ribs 100 of the front reinforcing ribbed member 14, the ribs 100 of the rear reinforcing ribbed member 15 and the ribs 100 of the third intermediate reinforcing ribbed member 18 have an identical profile. The first intermediate reinforcement ribbed member 16 and the second intermediate reinforcement ribbed member 17 have an identical profile. The first intermediate reinforcement ribbed member 16 and the second intermediate reinforcement ribbed member 17 comprise two types of ribs 200, 300, namely two adjacent intermediate ribs 200 between two adjacent ribs 300 front and two adjacent ribs 300 rear. The intermediate adjacent ribs 200 have a free edge 201 between a free edge 301 of the front adjacent ribs 300 and a free edge 101 of the ribs 100 of the frontal reinforcing rib member 14.
[79] En synthèse, l’invention concerne un système de renfort 5 pour plancher 3 de véhicule automobile 1 , le système de renfort 5 comportant une plaque supérieure[79] In summary, the invention relates to a reinforcement system 5 for the floor 3 of a motor vehicle 1, the reinforcement system 5 comprising an upper plate
9 comportant des organes de fixation 30 au plancher 3, une zone d’absorption 10 de choc et une zone de renforcement 11. La zone d’absorption 10 est solidaire de la plaque supérieure 9 et est configurée pour pouvoir se déformer à effort constant sous l’effet d’un choc. La zone de renforcement 11 est rigide, est configurée pour pouvoir transmettre un effort de compression consécutif au choc, est solidaire de la plaque supérieure 9 et s’étend longitudinalement dans le prolongement de la zone d’absorption 10. 9 comprising fixing members 30 to the floor 3, a shock absorption zone 10 and a reinforcement zone 11. The absorption zone 10 is integral with the upper plate 9 and is configured to be able to deform under constant force under the effect of a shock. The reinforcement zone 11 is rigid, is configured to be able to transmit a compressive force following the impact, is integral with the upper plate 9 and extends longitudinally in the extension of the absorption zone 10.
[80] Bien sûr, l’invention n’est pas limitée aux exemples qui viennent d’être décrits et de nombreux aménagements peuvent être apportés à ces exemples sans sortir du cadre de l’invention. Notamment, les différentes caractéristiques, formes, variantes et modes de réalisation de l’invention peuvent être associées les unes avec les autres selon diverses combinaisons dans la mesure où elles ne sont pas incompatibles ou exclusives les unes des autres. En particulier toutes les variantes et modes de réalisation décrits précédemment sont combinables entre eux.
[80] Of course, the invention is not limited to the examples that have just been described and many adjustments can be made to these examples without departing from the scope of the invention. In particular, the different characteristics, forms, variants and embodiments of the invention may be associated with each other in various combinations insofar as they are not incompatible or exclusive of each other. In particular, all the variants and embodiments described above can be combined with each other.
Claims
[Revendication 1] jSystème de renfort (5) pour plancher (3) de véhicule automobile (1), le système de renfort (5) comportant : [Claim 1] jReinforcement system (5) for the floor (3) of a motor vehicle (1), the reinforcement system (5) comprising:
- une plaque supérieure (9) comportant des organes de fixation (30) au plancher (3) ; - an upper plate (9) comprising fasteners (30) to the floor (3);
- une zone d’absorption (10) de choc solidaire de la plaque supérieure (9), la zone d’absorption (10) étant configurée pour pouvoir se déformer à effort constant sous l’effet d’un choc ; - a shock absorption zone (10) integral with the upper plate (9), the absorption zone (10) being configured to be able to deform at constant force under the effect of a shock;
- une zone de renforcement (11) rigide configurée pour pouvoir transmettre un effort de compression consécutif au choc, la zone de renforcement (11) étant solidaire de la plaque supérieure (9) et s’étendant longitudinalement dans le prolongement de la zone d’absorption (10). - a rigid reinforcement zone (11) configured to be able to transmit a compressive force following the impact, the reinforcement zone (11) being integral with the upper plate (9) and extending longitudinally in the extension of the uptake (10).
[Revendication 2] Système de renfort (5) selon la revendication précédente, dans lequel la zone d’absorption (10) comporte au moins un bloc d’absorption (25, 26, 27, 28, 29) configuré pour se déformer à effort constant, chaque au moins un bloc d’absorption (25, 26, 27, 28, 29) étant solidaire de la plaque supérieure (9). [Claim 2] Reinforcement system (5) according to the preceding claim, in which the absorption zone (10) comprises at least one absorption block (25, 26, 27, 28, 29) configured to deform under stress constant, each at least one absorption block (25, 26, 27, 28, 29) being integral with the upper plate (9).
[Revendication 3] Système de renfort (5) selon la revendication précédente, dans lequel chaque bloc d’absorption (25, 26, 27, 28, 29) est formé d’une structure alvéolaire. [Claim 3] Reinforcement system (5) according to the preceding claim, in which each absorption block (25, 26, 27, 28, 29) is formed of a honeycomb structure.
[Revendication 4] Système de renfort (5) selon l’une quelconque des revendications précédentes, dans lequel la zone de renforcement (11) rigide comporte au moins un organe nervuré (14, 15, 16, 17, 18) de renforcement solidaire de la plaque supérieure (9), chaque organe nervuré (14, 15, 16, 17, 18) s’étendant en saille depuis la plaque supérieure (9) et s’étendant longitudinalement depuis la zone d’absorption (10) et en direction d’un bord opposé (19) de la plaque supérieure (9). [Claim 4] Reinforcement system (5) according to any one of the preceding claims, in which the rigid reinforcement zone (11) comprises at least one ribbed reinforcement member (14, 15, 16, 17, 18) integral with the upper plate (9), each ribbed member (14, 15, 16, 17, 18) projecting from the upper plate (9) and extending longitudinally from the absorption zone (10) and in the direction an opposite edge (19) of the top plate (9).
[Revendication 5] Système de renfort (5) selon la revendication précédente, dans lequel chaque organe nervuré (14, 15, 16, 17, 18) comporte au moins deux nervures (100, 200, 300) s’étendant parallèlement l’une à l’autre et présentant un profil transverse rectangulaire. [Claim 5] Reinforcement system (5) according to the preceding claim, in which each ribbed member (14, 15, 16, 17, 18) comprises at least two ribs (100, 200, 300) extending parallel to one to the other and having a rectangular transverse profile.
[Revendication 6] Système de renfort (5) selon la revendication précédente, dans lequel l’au moins un organe nervuré (14, 15, 16, 17, 18) comporte au
moins un tube métallique (400) logé entre deux nervures (100) adjacentes de l’organe nervuré (14, 15, 16, 17, 18), chaque au moins un tube métallique (400) s’étendant parallèlement auxdites nervures (100). [Claim 6] Reinforcement system (5) according to the preceding claim, in which the at least one ribbed member (14, 15, 16, 17, 18) comprises at at least one metal tube (400) housed between two adjacent ribs (100) of the ribbed member (14, 15, 16, 17, 18), each at least one metal tube (400) extending parallel to said ribs (100) .
[Revendication 7] Arrangement (2) de plancher (3) pour véhicule automobile (1), l’arrangement (2) comportant : [Claim 7] Arrangement (2) of a floor (3) for a motor vehicle (1), the arrangement (2) comprising:
- un plancher (3) renforcé par deux traverses (4, 20) d’assise s’étendant latéralement d’un bord (6) à l’autre du plancher (3) ; - a floor (3) reinforced by two seat crosspieces (4, 20) extending laterally from one edge (6) to the other of the floor (3);
- un système de renfort (5) selon l’une quelconque des revendications précédentes, le système de renfort (5) étant fixé solidairement au plancher (3) au niveau desdites traverses (4, 20) d’assise. - a reinforcement system (5) according to any one of the preceding claims, the reinforcement system (5) being fixed integrally to the floor (3) at the level of the said crosspieces (4, 20) of the seat.
[Revendication 8] Arrangement (2) de plancher (3) selon la revendication précédente, dans lequel la zone de renforcement (11) du système de renfort (5) comporte : [Claim 8] Arrangement (2) of floor (3) according to the preceding claim, in which the reinforcement zone (11) of the reinforcement system (5) comprises:
- un organe nervuré de renforcement frontal (14) qui s’étend longitudinalement en avant d’une traverse (4) d’assise frontale ; - a front reinforcing ribbed member (14) which extends longitudinally in front of a cross member (4) of the front seat;
- un organe nervuré de renforcement arrière (15) qui s’étend longitudinalement en arrière d’une traverse (20) d’assise arrière ; - a rear reinforcing ribbed member (15) which extends longitudinally behind a rear seat cross member (20);
- un premier organe nervuré de renforcement intermédiaire (16) qui s’étend entre deux parties terminales (21 , 22) de la traverse (4) d’assise frontale ;- a first ribbed member of intermediate reinforcement (16) which extends between two end parts (21, 22) of the crosspiece (4) of the front seat;
- un deuxième organe nervuré de renforcement intermédiaire (17) qui s’étend entre deux parties terminales (23, 24) de la traverse (20) d’assise arrière ;- a second intermediate reinforcement ribbed member (17) which extends between two end parts (23, 24) of the cross member (20) of the rear seat;
-un troisième organe nervuré de renforcement intermédiaire (18) située entre la traverse (20) d’assise arrière et la traverse (4) d’assise frontale. -a third intermediate reinforcement ribbed member (18) located between the rear seat cross member (20) and the front seat cross member (4).
[Revendication 9] Arrangement (2) de plancher (3) selon la revendication précédente, dans lequel la zone d’absorption (10) du système de renfort (5) comporte : [Claim 9] Arrangement (2) of floor (3) according to the preceding claim, in which the absorption zone (10) of the reinforcement system (5) comprises:
- un bloc d’absorption frontal (25) situé dans le prolongement de l’organe nervuré de renforcement frontal (14) au niveau d’une partie frontale (7) du plancher (3) ; - a front absorption block (25) located in the extension of the front reinforcement ribbed member (14) at the level of a front part (7) of the floor (3);
- un bloc d’absorption arrière (26) situé dans le prolongement de l’organe nervuré de renforcement arrière (15) au niveau d’une partie arrière (8) du plancher (3) ; - a rear absorption block (26) located in the extension of the rear reinforcement ribbed member (15) at the level of a rear part (8) of the floor (3);
- un premier bloc d’absorption (27) situé dans le prolongement du premier
organe nervuré de renforcement intermédiaire (16); - a first absorption block (27) located in the extension of the first intermediate reinforcing rib member (16);
-un deuxième bloc d’absorption (28) situé dans le prolongement du deuxième organe nervuré de renforcement intermédiaire (17) ; -a second absorption block (28) located in the extension of the second intermediate reinforcement ribbed member (17);
-un troisième bloc d’absorption (29) situé dans le prolongement du troisième organe nervuré de renforcement intermédiaire (18). -a third absorption block (29) located in the extension of the third intermediate reinforcement ribbed member (18).
[Revendication 10] Véhicule automobile (1) comportant un arrangement (2) de plancher (3) selon l’une quelconque des revendications 7 à 9.
[Claim 10] Motor vehicle (1) comprising an arrangement (2) of the floor (3) according to any one of Claims 7 to 9.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2103034A FR3121118A1 (en) | 2021-03-25 | 2021-03-25 | Reinforcement system for motor vehicle floor |
PCT/FR2022/050329 WO2022200706A1 (en) | 2021-03-25 | 2022-02-23 | Reinforcing system for a motor vehicle floor |
Publications (1)
Publication Number | Publication Date |
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EP4313735A1 true EP4313735A1 (en) | 2024-02-07 |
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ID=76375173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP22710133.4A Pending EP4313735A1 (en) | 2021-03-25 | 2022-02-23 | Reinforcing system for a motor vehicle floor |
Country Status (5)
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US (1) | US20240140532A1 (en) |
EP (1) | EP4313735A1 (en) |
CN (1) | CN117098703A (en) |
FR (1) | FR3121118A1 (en) |
WO (1) | WO2022200706A1 (en) |
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DE2035797A1 (en) | 1970-07-18 | 1972-01-27 | Bayer Ag | New nitrofurandenvates, a process for their production and their use as pharmaceuticals |
DE102013008428B4 (en) * | 2013-05-16 | 2017-05-18 | Volkswagen Aktiengesellschaft | Arrangement for storing at least one, arranged in a housing drive energy storage in a motor vehicle |
DE102013014004A1 (en) * | 2013-08-21 | 2015-02-26 | Daimler Ag | vehicle body |
FR3024422B1 (en) * | 2014-08-04 | 2016-08-26 | Peugeot Citroen Automobiles Sa | CROSS FLOOR COMPRISING A DEFORMABLE PORTION IN COMPRESSION |
DE102016223216A1 (en) * | 2016-11-23 | 2018-05-24 | Volkswagen Aktiengesellschaft | Body floor structure for a vehicle |
CN110352157B (en) * | 2017-03-10 | 2022-03-25 | 马自达汽车株式会社 | Lower body structure of vehicle |
FR3078048B1 (en) * | 2018-02-22 | 2021-01-15 | Psa Automobiles Sa | BATTERY PROTECTION DEVICE IN THE EVENT OF SIDE IMPACT AND VEHICLE EQUIPPED WITH SUCH A DEVICE |
-
2021
- 2021-03-25 FR FR2103034A patent/FR3121118A1/en active Pending
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2022
- 2022-02-23 US US18/548,045 patent/US20240140532A1/en active Pending
- 2022-02-23 EP EP22710133.4A patent/EP4313735A1/en active Pending
- 2022-02-23 CN CN202280024218.3A patent/CN117098703A/en active Pending
- 2022-02-23 WO PCT/FR2022/050329 patent/WO2022200706A1/en active Application Filing
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FR3121118A1 (en) | 2022-09-30 |
CN117098703A (en) | 2023-11-21 |
US20240140532A1 (en) | 2024-05-02 |
WO2022200706A1 (en) | 2022-09-29 |
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