Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
  • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

Definitions

• MOBILE HINGE HOLDER IMPACT SHOCK ABSORBER.
• the present invention relates to a reinforcing element intended to equip a motor-car hood to enable said hood to be fixed to a hood hinge, said element being of the movable carrier type.
• a mobile knuckle support consists of a substantially flat reinforcing plate and is intended to be attached in a hood of the car, at the joints of the hood with the chassis of the vehicle, in order to ensure the fixing of said bonnet hinges attached to the frame.
• Car manufacturers are constantly seeking to improve the safety of their vehicles and / or preserve the physical integrity of their passengers and pedestrians who might be involved in a crash. New passive safety devices are thus developed.
• the bonnet of a vehicle contributes very significantly to the passive safety of the vehicle since it is very often the part that is struck by the pedestrian during an impact, especially the head of the pedestrian.
• the present invention aims to remedy all or part of the various disadvantages mentioned above.
• the object of the present invention is to provide a new passive safety element that can be integrated at low cost in a hood for a motor vehicle.
• the present invention relates to a reinforcing element intended to equip a motor vehicle hood to enable said hood to be fixed to a hood hinge, said element being of the movable carrier type, characterized in that said element comprises less a damping zone whose geometry is adapted to deform and absorb some of the stresses experienced by said element during an impact.
• an element according to the present invention makes it possible to confer on the hinge zones of a hood a passive safety function while avoiding the addition of new automobile parts in comparison with a conventional vehicle not equipped with the element according to the invention.
• the equipment of a vehicle with the element according to the present invention therefore does not significantly change the mass of the vehicle relative to the same vehicle equipped with a conventional mobile knuckle support.
• the element according to the present invention integrates into the pre-existing hollow bodies of a vehicle hood, it is not necessary to adapt the vehicle to free space for the implantation of said element. .
• the damping zone comprises at least one deformable bulge of material.
• the element further comprises at least one substantially flat fixing zone intended to serve as a support means for fixing said cover to the hood hinge.
• an element according to the present invention can be attached at a fastening area to the bonnet liner and a movable knuckle.
• the damping zone has a general convex shape delimiting a cavity.
• the cavity in a transverse section of said element, has a curved profile, trapezoidal or trapezoidal stages.
• notches are provided in the damping zone. Notches in the form of damping make it possible to improve the deformation of said damping zone and the absorption of kinetic energy released during an impact. The number and the positioning of said notches can be optimized by calculation.
• the element is monoblock.
• the present invention also relates to a hood for a motor vehicle comprising a skin forming the outer surface of said hood, a lining forming the inner surface of the hood, and at least one element according to the present invention, characterized in that the element is arranged between the skin and the lining.
• the present invention provides a hood for an automobile having a passive safety function in case of impact, at the joints thereof, without requiring special adaptation of the vehicle to be equipped.
• a pre-existing vehicle may be subsequently equipped with a hood according to the invention without particular adaptation or significant change in mass thereof.
• the element is in connection with the inner face of the skin.
• a bead of adhesive material provides the connection between the skin and the element.
• a bead of sticky material makes it possible to ensure the correct positioning of the element when it is mounted in a hood according to the invention.
• the cavity is located between the liner and said element according to the invention or opens out of the liner.
• Figure 1 shows a perspective view of the front portion of a vehicle equipped with a hood according to the present invention
• Figure 2 shows a partial view of a hood equipped with an element according to the present invention positioned on a lining of a hood according to the invention
• Figure 3 shows a schematic cross sectional view of a hood according to the present invention
• Figures 4a, 4b and 4c show schematic cross-sectional views of the damping area of an element according to the present invention.
• Transversal refers to the reference vehicle where the term “longitudinal” characterizes a direction substantially oriented along the length of the vehicle and where “transverse” characterizes a direction substantially oriented along its width.
• a hood 1 according to the invention comprises an element 2 as represented in FIG. 2.
• Two elements 2 according to the invention are assembled on the hood 1 at the level of the articulation zones 3 of said hood 1 represented in FIG. element 2 fitted to the cover 1 is not visible from the outside since it is located under the skin 4 of said cover 1 constituting the outer surface thereof.
• An element 2 according to the present invention may be integral and comprises a damping zone 5 situated in the median part of the element 2 and whose geometry is adapted to deform and absorb a part of the stresses experienced by said element 2 during 'a shock with a pedestrian.
• the element 2, as represented in FIG. 2 also comprises two attachment zones 6, 7 each intended to serve as support for means for fastening said cover 1 to a movable knuckle, not shown, ensuring the articulation of said cover 1 with the vehicle.
• the damping area 5 consists of a bulge of material capable of deforming to absorb a portion of the kinetic energy released in case of impact, with a pedestrian for example. In order to facilitate the deformation, this damping zone 5 may have a generally convex shape delimiting a cavity 8.
• the cavity 8 may have a profile such as those represented in FIGS. 4a to 4c, for example a curved profile (Figure 4a), trapezoidal (Figure 4b) or even trapezoidal stages (Figure 4c). These geometries are however not limiting.
• notches 9 can be formed in the said damping zone 5. Their number and their positions can then be optimized by computer calculations.
• the present invention also relates to a hood 1 equipped with an element 2 as described above.
• this element 2 are chosen so that it can be inserted between the skin 4 of the cover 1 and a lining 10 forming the inner surface of said cover 1.
• Figure 2 the skin 4 of said cover 1 has been omitted to simplify the understanding of the invention.
• the skin 4 and the lining 10 define a hollow body 1 1 in which is disposed the element 2.
• the element 2 has the advantage for automakers to be able to equip a pre-existing vehicle hood without having to adapt the shape of the skin and / or lining.
• the cavity 8 defined by the element 2 is located between the lining 10 and the element 2 or even, in a form not shown, the cavity 8 opens out of the lining 10.
• the cavity 8 can be filled with a flexible material such as a foam to improve the kinetic energy absorption.
• a gap 12 of small thickness formed inside the hollow body 11 between the element 2 and the skin 4.
• a bead of adhesive material 13 may be disposed on the element 2 to ensure a connection of said element 2 with the skin 4 of said cover 1 to facilitate the setting of the different parts constituting the cover 1 during its assembly.
• the present invention describes an element 2 which makes it possible to confer on the articulation zones 3 of a hood 1 a passive safety function while avoiding the addition of new automobile parts in comparison with a conventional vehicle not equipped with the element 2 according to the invention.
• the equipment of a vehicle with the element 2 does not significantly change the mass of the vehicle compared to a similar vehicle equipped with a conventional mobile knuckle support.
• the element 2 can be integrated into the pre-existing hollow body 1 1 of a hood 1 for a vehicle, it is not necessary to adapt a vehicle to free space for the implantation of said element 2.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Superstructure Of Vehicle (AREA)

Applications Claiming Priority (2)

Publications (1)

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ID=40999926

Family Applications (1)

Country Status (5)

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Citations (2)

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• 2009
  • 2009-01-19 FR FR0950299A patent/FR2941203B1/fr not_active Expired - Fee Related
  • 2009-12-11 BR BRPI0916497A patent/BRPI0916497A2/pt not_active Application Discontinuation
  • 2009-12-11 EP EP09803845A patent/EP2379374A1/de not_active Withdrawn
  • 2009-12-11 CN CN200980155004.4A patent/CN102282049B/zh active Active
  • 2009-12-11 WO PCT/FR2009/052502 patent/WO2010081949A1/fr active Application Filing

Patent Citations (2)

Non-Patent Citations (1)

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