Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
  • B60J5/00—Doors
  • B60J5/10—Doors arranged at the vehicle rear
  • B60J5/101—Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans
  • B60J5/107—Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans constructional details, e.g. about door frame, panels, materials used, reinforcements
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
  • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
  • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
  • E05F5/022—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops specially adapted for vehicles, e.g. for hoods or trunks
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
  • E05Y2900/53—Type of wing
  • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards

Definitions

• Tailgate designed to be mounted articulated on a body of a motor vehicle, with improved stop
• the present invention relates to the technical field of opening of a motor vehicle, in particular motor vehicle tailgates.
• a motor vehicle tailgate is usually, on the one hand, hingedly mounted on a body of the vehicle, between open and closed positions, and, on the other hand, connected to this body by means generating an axial thrust of assistance when opening the tailgate.
• the tailgate In the closed position, the tailgate is generally intended to close a rear fixed bay of the body.
• the means of articulation of the tailgate on the body generally comprise a pair of hinges connecting, on the one hand, an upper edge of the bay and, on the other hand, an upper edge of the tailgate, and materializing a horizontal axis of articulation .
• the means for assisting the opening of the tailgate which also participate in the damping of the closing movement of the tailgate, generally comprise at least one cylinder, generally two cylinders respectively left and right.
• Each cylinder is provided with a first end of connection with the body, more particularly with a lateral edge of the rear bay, and a second end of connection with the tailgate, more particularly with a side edge of the tailgate, so as to exert, between these two connecting ends, an axial thrust.
• the tailgate is kept locked in the closed position by complementary means forming a lock arranged on the tailgate and the body.
• a seal carried by the body or the tailgate, is generally inserted and compressed between the tailgate in the closed position and the body.
• a motor vehicle tailgate type "all plastic” includes a plastic box (arranged inside the vehicle when the tailgate is in the closed position) and a plastic panel (arranged on the outside side to the vehicle when the liftgate is in the closed position). If necessary, a rear window glass is carried by the panel.
• the box and the panel may be made more particularly of thermoplastic materials. They are assembled together by gluing.
• tailgate flush defects with the complementary contour of the rear bay of the body, these outcrop defects being localized, considering the tailgate in the closed position in areas of the tailgate near the lateral ends (left and right) of its upper edge.
• the appearance of flush faults in the lateral ends (left and right) of the upper edge of the tailgate leads, on the one hand, to an upward swelling of the portion of the upper edge of the tailgate extending between the hinges, and secondly, the appearance of a defect of play between the lower edge of the tailgate and the complementary contour of the rear bay of the body.
• the purpose of the invention is in particular to limit or even eliminate the appearance of deformations of a motor vehicle tailgate, in particular, in certain configurations, of tailgate outcrop defects, this tailgate comprising a caisson made at least partially made of plastic, more particularly thermoplastic material, or even material with expansion characteristic quite different from that of a steel body, for example aluminum.
• the subject of the invention is a tailgate intended to be mounted articulated on a motor vehicle body, between open and closed positions, and intended to be connected to this box by means generating an axial thrust of assistance to the opening of the tailgate, characterized in that it comprises a stop, said stop anti-deformation, positioned on the tailgate so as to be intended to cooperate, when the tailgate is in the closed position, with a complementary support of the body, of way that this additional support exerts a reaction force against the anti-deformation stop
• tailgate deformations including tailgate outcrops
• the anti-deformation stop near a tailgate area likely to suffer flush faults with the complementary contour the rear bay of the box by subsidence of this area under the effect of different mechanical and thermal stresses.
• the assistance means comprise at least one jack
• the anti-deformation stop is, when the tailgate is in the closed position, intended to be positioned closer to a connecting end of the jack with the body than a connecting end of this jack with the tailgate;
• the anti-deformation stop comprises a mass of elastically deformable material, in particular an elastomer intended to come into contact with the complementary support of the body;
• the tailgate comprises a box made at least partially of thermoplastic material
• the anti-deformation stop is, when the tailgate is in the closed position, positioned in the upper half of the tailgate;
• the anti-deformation stop is, when the tailgate is in the closed position, positioned near a lateral end of an upper edge of the tailgate.
• FIG. 1 is a schematic side view of the rear of a motor vehicle, showing a tailgate according to the invention in the open position;
• FIG. 2 is a sectional view through an axial plane of the anti-deformation stop carried by the tailgate shown in Figure 1, the tailgate being in the closed position.
• FIG. 1 shows the rear of a motor vehicle 10 comprising an assembly 12 comprising a box 14 and a hatch 16 mounted articulated on this box, between an open position, as represented in FIG. 1, and a position closed, as shown in Figure 2.
• the hatch 16 closes a rear fixed bay 18 of the body.
• the tailgate is of the "all-plastic" type and comprises a plastic box 20 (arranged on the inside of the box). vehicle when the tailgate is in the closed position) and a plastic panel 22 (arranged outside the vehicle when the tailgate is in the closed position). If necessary, a rear window glass is carried by the panel 22.
• box 20 and the panel 22 are made of thermoplastic materials and are assembled together by known means, for example by gluing.
• the tailgate 16 may comprise a box 20 made only partly of thermoplastic material.
• pairs of elements arranged symmetrically on the body 14 or the tailgate 16, in particular on the left and right sides of the body 14 or the tailgate 16, are represented by only one of these elements. symmetrical.
• the rear bay 18 of the body is defined in particular by a pair of rear uprights 24 of the body, forming side edges of the bay 18, and a rear cross member 26 of the body, defining also a roof 28 of this box and forming an upper edge of the bay 18.
• the tailgate 16 is hinged to the body 14 by means comprising, in the example described, a pair of hinges 29reliant, on the one hand, the upper edge of the bay 18 formed by the rear cross member 26, and, d on the other hand, an upper edge 16S of the tailgate 16. These hinges 29 materialize a horizontal axis of articulation.
• the assembly 12 also comprises means connecting the body 14 and the tailgate 16, generating an axial thrust assistance to the opening of the tailgate 16.
• These assistance means to the opening of the tailgate 16, which also participate in the damping of the closing movement of the hatch 16, comprise a pair of conventional cylinders 30 respectively left and right.
• Each cylinder 30 is provided with a first end 30A of connection with the body, more particularly with a side edge of the rear bay 18, formed by a post 24, and a second end 30B of connection with the tailgate 16, plus particularly with a side edge 16L of the tailgate, so as to exert, between these two connecting ends 30A, 30B, an axial thrust.
• Each jack 30 is provided with a body 32 in which is axially slidably mounted a rod 34 between positions of minimum and maximum lengths of the jack 30.
• the rod 34 is biased towards the position of maximum length of the jack 30 under the effect of the axial thrust, to assist the opening movement of the tailgate 16.
• the first end 30A of the cylinder is formed by a free end of the body 32 which materializes a pivot point of the jack 30 fixed relative to the body 14.
• the second end 30B of the jack is formed by a free end of the rod 34 which materializes a point of articulation of the jack 30 movable relative to the body 14.
• the assistance means for opening the tailgate 16 could comprise only one jack 30.
• a seal 36 carried by the body 14 is interposed and compressed between the tailgate 16 in the closed position and the body 14.
• FIGS. 1 and 2 there is shown by a dashed line and by an arrow F, respectively, the direction D of thrust of a jack 30, when the tailgate 16 is in the closed position, and the direction of this thrust, when the tailgate 16 is in the closed position.
• the tailgate 16 comprises a pair of anti-deformation abutments, each of which is intended to cooperate, when the tailgate 16 is in the closed position, with a corresponding abutment or complementary support 40 of the checkout 14.
• the anti-deformation abutment 38 comprises a mass 38M of elastically deformable material, in particular elastomer as in the example described, intended to come into contact with the complementary support 40 of the body.
• This mass of elastomer 38M is hooked in a manner known per se, directly or indirectly, to the box 20 of the tailgate, for example by snapping into an orifice 42 formed in the box 20 or any other attachment means.
• the part of the box in which is formed the attachment hole or arranged the attachment means of the mass 38M is, where appropriate, reinforced.
• the support 40 formed on the body 14, is preferably made of sheet metal, as the part of the box 14 defining the bay 18. This plate is, if necessary, reinforced at the support 40.
• the positioning of the anti-deformation stop 38 on the tailgate 16 allows this tailgate 16 to cooperate with a complementary support 40 of the body, in such a way that this additional support 40 exerts a reaction force against the anti-deformation abutment 38.
• This reaction force has:
• a line in phantom lines shows the direction DR and by an arrow R the component of the reaction force in the opposite direction to the thrust direction F of each jack 30, when the tailgate is in closed position.
• the anti-deformation stop 38 must be sized to be able to be subjected to a reaction force of the complementary support 40 of module between 200 and 500 N.
• the first end 30A of the jack 30 is connected to an upper portion of the lateral edge of the rear bay 18, and the second end 30B of the jack 30 is connected to a part lower side edge 16L of the tailgate 16.
• the deformations that the stops 38 allow to limit, or even eliminate, are flush defects of the tailgate 16 located, in considering the tailgate 16 in the closed position, in areas of the tailgate 16 near the lateral ends (left and right) of its upper edge 16S.
• each anti-deformation stop 38 is, when the tailgate 16 is in the closed position, positioned in the upper half of the hatch 16.
• each anti-deformation stop 38 is, when the tailgate 16 is in the closed position, positioned closer to the connecting end 30A of the jack 30 with the body 14 that the connecting end 30B of this jack 30 with the tailgate 16.
• each cylinder 30 it is possible to connect each cylinder 30 to the body and to the tailgate otherwise than as illustrated.
• the first end 30A of the jack 30 could be connected to a lower portion of the lateral edge of the rear bay 18 and the second end 30B of the jack 30 could be connected to an upper portion of the side edge 16L of tailgate 16.
• each anti-deformation stop 38 is, when the tailgate 16 is in the closed position, positioned in the lower half of the hatch 16.
• the support 40 of the body 14 could comprise an elastomer mass intended to come into contact with the anti-deformation stop 38 of the tailgate, this stop 38 being formed by a portion, possibly reinforced, of the tailgate 16, for example part of the box 20 of the tailgate.
• the tailgate may comprise a box made at least partially of material with a characteristic of expansion quite different from that of a steel box, for example aluminum, the stops 38 to limit or even avoid the deformations of the hatchback .

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Body Structure For Vehicles (AREA)
• Superstructure Of Vehicle (AREA)
• Fluid-Damping Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=49151060

Family Applications (1)

Country Status (7)

Families Citing this family (1)

Family Cites Families (6)

• 2013
  • 2013-05-17 FR FR1354498A patent/FR3005606B1/fr not_active Expired - Fee Related
• 2014
  • 2014-05-15 JP JP2016513427A patent/JP6395814B2/ja not_active Expired - Fee Related
  • 2014-05-15 EP EP14729964.8A patent/EP2996892A2/de not_active Withdrawn
  • 2014-05-15 WO PCT/FR2014/051138 patent/WO2014184500A2/fr not_active Ceased
  • 2014-05-15 US US14/891,567 patent/US9623733B2/en not_active Expired - Fee Related
  • 2014-05-15 CN CN201480040498.2A patent/CN105636809B/zh not_active Expired - Fee Related
  • 2014-05-15 KR KR1020157035478A patent/KR20160016859A/ko not_active Ceased

Non-Patent Citations (1)

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