Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
  • B62D25/02—Side panels
  • B62D25/025—Side sills thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
  • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
  • 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
  • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
  • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D27/00—Connections between superstructure or understructure sub-units
  • B62D27/02—Connections between superstructure or understructure sub-units rigid

Definitions

• TITLE SIDE BEAM REINFORCEMENT WITH TWO FIXING POSITIONS ACCORDING TO THE TRACK WIDTH OF THE MOTOR VEHICLE
• the present invention relates to the field of motor vehicles, more particularly to the field of the structure of motor vehicles.
• the platforms of motor vehicles comprising a tray for electric traction energy accumulators, commonly referred to as a battery tray, have side members comprising various reinforcements, for example, the arrangement of reinforcements in internal parts of the side members, an increase in thickness at the level of the external and internal walls, partitions, etc.
• other elements of the motor vehicle are generally reinforced, such as in particular the central tunnel, the floor, the B-pillar, the roof, etc.
• the present invention aims to overcome at least one of the drawbacks of the aforementioned state of the art. More particularly, the invention aims to propose a simple, efficient and economical solution for reinforcing the side members of a motor vehicle, while being adaptable to two different track widths of two models of motor vehicles having substantially similar platforms.
• the invention relates to a motor vehicle comprising:
• each longitudinal member comprising an inner longitudinal member and an outer longitudinal member fixed to the inner longitudinal member by at least one joining groove;
• the reinforcement comprises two transversely offset tab attachment positions, so as to adapt to two different track widths of the motor vehicle.
• the external side member is part of one side of the body of the motor vehicle.
• the tab is preferably arranged at one end, advantageously rear, of the reinforcement.
• the two fixing positions comprise screw and/or rivet fixing holes arranged on an upper wall of the reinforcement.
• each of the two fixing positions comprises two holes, preferably threaded, distributed longitudinally along the reinforcement.
• the at least one joining groove comprises an upper joining groove and a lower joining groove, the tab being fixed by welding in the upper joining groove.
• the leg comprises an L-shaped section with a branch fixed by screwing and/or riveting to one of the two fixing positions.
• the leg comprises a stiffening rib extending between two holes for fixing to the reinforcement, over at least 70% of a total extent of the L-shaped section of said leg.
• the tab comprises an end provided with at least one tab directly welded into the upper junction groove.
• the two fixing positions of the leg are offset transversely by at least 20 mm and at most 80 mm.
• the invention also relates to a method of assembling a motor vehicle model with, selectively, a first track width or a second track width greater than the first track width, comprising the following steps:
• the motor vehicle is according to the invention; and, in the step of installing the reinforcement, the tab is fixed, selectively, to a first of the two reinforcement fixing positions for the first track width or to a second of said two reinforcement fixing positions for the second track width.
• the leg has an L-shaped profile with opposite orientations when secured at the first securing position and the second securing position.
• the measures of the invention are advantageous in that the side member reinforcement makes it possible to ensure the mounting of two motor vehicles having two different track widths. Indeed, the fixing holes on this reinforcement make it possible to fix the leg so as to effectively reinforce the two side members of the motor vehicle, regardless of the track width of said motor vehicle.
• the invention can be adapted to electric vehicles, because it improves the protection of the battery tray.
• the method of assembling a motor vehicle according to the invention makes it possible to ensure considerable simplicity and time savings during the assembly of the motor vehicle, as well as significant savings in production costs.
• FIG 1 represents a perspective view of a motor vehicle model during assembly of said motor vehicle, following an assembly method according to the invention
• FIG. 1 represents a perspective view of the motor vehicle of FIG. 1 comprising a reinforcement placed in an internal side member, and a tab fixed to a first fixing position of said reinforcement for a first track width of said motor vehicle;
• FIG 3 represents a perspective view of the motor vehicle of Figure 1 comprising the reinforcement placed in the inner side member, and a tab fixed to a second fixing position of said reinforcement for a second track width of said motor vehicle which is greater than the first track width.
• Figure 1 shows a perspective view of a motor vehicle model 2 during assembly of said motor vehicle, using an assembly method according to the invention, in which one can see a body side 8 approaching the motor vehicle 2 laterally, towards an internal side member 4.1.
• the body side 8 preferably comprises an outer side member 4.2 intended to be fixed by welding to the inner side member 4.1, so as to form a side member 4.
• the motor vehicle 2 comprises two side members 4 extending longitudinally on either side of a passenger compartment floor 6.
• Each of the two side members 4 comprising a reinforcement 10 arranged between the inner side member 4.1 and the outer side member 4.2.
• This reinforcement 10 makes it possible to stiffen the structure of the motor vehicle 2 in order to limit intrusions and body twisting. in the event of a side impact, and thus protect a battery tray (not shown) located under the floor 6 of the motor vehicle 2.
• Figures 2 and 3 illustrate, respectively, each of the two fixing positions comprising a first position 7 for a first track width, and a second position 9 for a second track width greater than the first track width of the motor vehicle 2.
• first position 7 corresponds to a narrow position in which the tab is fixed to an inner transverse half of the reinforcement 10 (towards the floor 6)
• second position 9 corresponds to a wide position in which the tab is fixed to an outer transverse half of said reinforcement 10 (towards the outer side member 4.2).
• fixing holes 11 are arranged longitudinally along the reinforcement 10, and which preferably correspond to threaded holes and to the number of two holes 11 ensuring the fixing of the lug 12 by screwing for the first track width of the motor vehicle 2.
• the tab 12 comprises an end 12.2 provided with at least one tab 12.3 directly welded into the upper junction groove 4.3, and preferably comprises two tabs 12.3 longitudinally spaced apart. along the end 12.2 and both fixed to said junction groove 4.3.
• the tab 12 makes it possible to ensure rigid support of the reinforcement 10 with the side member of the motor vehicle 2.
• the leg 12 comprises a stiffening rib 12.4 extending centrally between the two fixing holes 11, and this over at least half of the total extent of said leg 12, and preferably over approximately 80% ( ⁇ 10%) of its total extent.
• the tab 12 illustrated in Figure 2 corresponds to a tab according to a first embodiment, the latter being adapted to the first narrow-track fixing position 7. It can be seen that the upper wall 10.1 is pointed with two opposite slopes 10.2, 10.3 forming a crest 10.4 separating the two fixing positions.
• the slope 10.3 preferably comprises two fixing holes 13 so as to ensure the fixing of the reinforcement 10 to the inner spar 4.1, in the second wide-track fixing position, by means of a tab according to a second embodiment visible in Figure 3.
• Figure 3 shows a perspective view of the motor vehicle in the second lane width.
• the upper joining groove 4.3 (illustrated in dotted lines) is further transversely outwardly from its initial position, so as to ensure the attachment of the reinforcement with the inner side member 4.1 in the second wide track attachment position 9.
• the upper joining groove 4.3 illustrated in dotted lines belongs to the motor vehicle model 2 having the wide track width, in which the floor 6 and/or the inner side member 4.1 is wider in the transverse direction.
• the reinforcement 10 is fixed to the upper rebate 4.3 illustrated in dotted lines by means of the tab 14.
• the tab 14 comprises an L-shaped section with a branch 14.1 fixed to the slope 10.3 of the upper wall 10.1 of the reinforcement 10, by screwing and/or by riveting, and more preferably by screwing.
• the fixing holes 13 correspond to threaded holes and to the number of two holes 13.
• the tab 14 comprises an end 14.2 provided with at least one tab 14.3 directly welded into the upper joining groove 4.3, and preferably comprises two tabs 14.3 longitudinally spaced along the end 14.2 and fixed to said junction groove 4.3 to ensure rigid support of the reinforcement 10 to the spar.
• the leg 14 comprises a central stiffening rib 14.4 extending over at least half of the total extent of the leg 14, and preferably over approximately 70% ( ⁇ 10%) of its total extent.
• the two fixing positions of the tab 12, 14 are offset transversely by at least 10 mm and at most 100 mm, and preferably by at least 20 mm and at most 80 mm, and even more preferably by approximately 50 mm ( ⁇ 10 mm).
• This transverse offset corresponds to the distance separating the two fixing holes 11 and 13, between the slope 10.2 and 10.3 of the upper wall 10.1 of the reinforcement 10.
• the same reinforcement 10 of the inner spar 4.1 is used for the narrow track and the wide track.
• the fixing holes 11, 13 on this reinforcement 10 make it possible to fix the lug 12, 14 regardless of the track width of the motor vehicle. This results in considerable simplicity and time savings when assembling the motor vehicle of the invention, associated with a significant saving in production costs.

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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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=86657135

Family Applications (1)

Country Status (3)

Family Cites Families (6)

• 2023
  • 2023-03-16 FR FR2302422A patent/FR3146648B1/fr active Active
• 2024
  • 2024-02-08 EP EP24714225.0A patent/EP4680515A1/de active Pending
  • 2024-02-08 WO PCT/FR2024/050177 patent/WO2024189284A1/fr not_active Ceased

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