Classifications

• • 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
  • E05Y2900/53—Type of wing
  • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards

Definitions

• the invention relates to a vehicle opening.
• the invention relates more particularly to a device for wedging in the closed position an opening on the body of a vehicle, of the type comprising a stop and a stop receptacle.
• the opening of a vehicle must be equipped with devices to perform three functions.
• the first function is the end of travel stop at
• the second function is to keep the door in the closed position against the body while the vehicle is running.
• the third function is the treatment of acoustic phenomena of the buzzing or drumming type caused by small movements of the opening relative to the body of the vehicle.
• stop and hold functions are provided by rubber or elastomeric stop devices.
• the treatment of acoustic phenomena is carried out by additional devices of the “filtered striker” type, or of the type comprising a sound absorbing element with a fusible sheet, or even of the type with counterweight (s).
• the invention aims to propose a device which makes it possible to fulfill the three functions at the same time, in an economical manner.
• the invention provides a wedging device of the type described above, characterized in that the stop comprises a fixed rod which guides in axial sliding a head of support, against an elastic element, and in that, when the support head and the surface facing the receptacle are in axial support, the rod, the stop and the receptacle ensure a substantially rigid connection in the rad ial direction between the opening and the body of the vehicle.
• the support head and the surface facing the receptacle are in contact along a continuous line;
• the end of the support head intended to come to bear on the surface facing the receptacle is of convex frustoconical shape, the surface facing the receptacle is a concave frustoconical bearing, l 'angle at the top of the concave frustoconical bearing being greater than the angle at the top of the truncated cone forming said end of the support head;
• the stop comprises an elastic pad interposed axially between the support head and the element which carries the stop;
• the elastic pad is made of a material of low elastic stiffness in axial comp such as that of rubber or an elastomeric material, natural or synthetic;
• the rod belongs to a screw fixed on the opening or on the vehicle body;
• the receptacle and the support head are made of a plastic material loaded with significant elastic stiffness;
• the plastic material of the receptacle is different from the plastic material of the support head.
• FIG. 1 is an axial sectional view which shows a wedging device produced in accordance with the teachings of the invention in a first stop position;
• Figure 2 is a view similar to Figure 1 which shows the wedging device in a second stop position.
• FIG. 1 shows a wedging device 10 of an opening 12 on the body 14 of a vehicle.
• the opening 12 and the body 14 have been partially represented in the form of a sheet metal portion of each of these elements.
• the wedging device 10 comprises a stop 16 on the opening 12 and a stop receptacle 1 8 on the body 14.
• the stop 16 comprises a support head 20 and an elastic pad 22 annular and coaxial with axis X-X.
• the elastic pad 22 is interposed between a lower face 24 of the opening 12 and an upper annular radial surface 26 of the support head 20.
• the elastic pad 22 has the shape of a washer and has an annular orifice 28 of diameter D 1.
• the support head 20 comprises a cylindrical upper section 30 and a lower section which forms a convex frustoconical bearing 32, inclined towards the axis X-X and downwards.
• the support head 20 also includes an upper axial bore 34 of the same diameter D 1 as the annular orifice 28 of the elastic pad 22, and a lower axial bore 36 of diameter D2.
• the two bores 34, 36 define a radial shoulder surface 38 oriented downwards.
• the diameter D3 of the lower axial end 40 of the convex frustoconical bearing 32 is larger than the diameter D2 of the lower axial bore 36.
• the lower axial end 40 of the frustoconical convex bearing 32 delimits with the opening lower axial 42 of the lower axial bore 36 an annular radial surface 44.
• the annular radial surface 44 must be wide enough to allow the lower axial end 40 of the convex frusto-conical bearing surface 32 to be stiffened. Indeed, it is necessary to avoid deformation of the lower axial end 40 when it is in contact with the concave frustoconical bearing 60, so as not to harm the desired radial stiffness.
• the support head 20 and the shoe 22 are mounted on the underside 24 of the opening 12 by means of a guide screw 46 which is screwed into a nut 48.
• the nut 48 is welded to the upper face 50 of the opening 12.
• the guide screw 46 comprises a threaded rod 52 whose lower axial end is provided with a substantially cylindrical guide head 54.
• the guide head 54 defines with the threaded rod 52 a support surface 56 oriented upwards.
• the guide head 54 is supported axially on the shoulder surface 38 of the support head 20 by its support surface 56.
• the guide head 54 As the guide head 54 and the lower axial bore 36 have substantially the same diameter D2, the guide head 54 provides a rigid radial connection with the support head 20, which prevents any radial movement of the head d 'support 20. In addition, the guide head 54 guides in axial sliding the support head 20 when the latter compresses the elastic pad 22 axially.
• the receptacle 18 is of substantially cylindrical annular shape and it is coaxial with the stop 16 of axis XX.
• the upper radial face 58 of the receptacle 1 8 has a concave frustoconical bearing 60 of axis XX.
• the angle at the top of the concave frustoconical bearing surface 60 is greater than the angle at the top of the convex frustoconical bearing surface 32 of the support head 20.
• the diameter D3 of the lower axial end 40 of the convex frustoconical bearing 32 is substantially equal to the intermediate diameter Di of the concave frustoconical bearing 60.
• the linear contact between the two frustoconical surfaces 32, 60 allows a rigid radial connection between the support head 20 and the receptacle 18.
• the diameter D4 of the lower axial end 62 of the concave frustoconical bearing 60 is larger than the diameter D5 of the annular orifice 64 of the receptacle 18.
• the lower axial end 62 of the concave frustoconical bearing 60 delimits with the upper axial opening 66 of the annular orifice 64 an annular radial bearing surface 68 oriented upwards.
• the receptacle 18 is fixed to the upper face 70 of the body 14 by a fixing screw 72 which is screwed into a nut 74.
• the nut 74 is supported axially on the underside 76 of the body 14 by means of a support washer 78.
• the fixing screw 72 comprises a threaded rod 80, the upper axial end of which comprises a head 82 which rests axially on the annular radial bearing surface 68 of the receptacle 18.
• a cylindrical guide sleeve 84 is inserted into the annular orifice 64 of the receptacle 1 8 so to be interposed radially between the threaded rod 80 of the fixing screw 72 and the receptacle 18.
• the receptacle 1 8 is tightened axially between the head 82 of the fixing screw 72 and the upper face 70 of the body 14.
• the cylindrical sleeve 84 and the threaded rod 80 oppose the radial movements of the receptacle 18.
• the stop 16 is housed in the receptacle 1 8.
• the wedging device 10 is in the first position P 1 which is shown in FIG. 1.
• connection between the two frustoconical bearing surfaces 32, 60 is linear.
• the stop 16 is stressed in axial compression between the opening 12 and the body 14.
• the support head 20 and the receptacle 18 practically do not deform because they are made of a material of significant elastic stiffness.
• the elastic pad 22 then deforms under the axial pressure of the opening 12 which has approached the body 14.
• the guide screw 46 which is rigidly mounted on the opening 12, moves with the opening 12 downwards and its guide head 54 slides in the lower axial bore 36 of the support head 20. It will be noted that the stiffness of the elastic pad 22 must be sufficiently low to allow engagement of the keeper (not shown) of the opening 12 on the lock (not shown) of the body 14.
• the stiffness of the elastic pad 22 must also be high enough to ensure the stop at the end of travel of the opening 12, and prevent contact between the parts.
• an elastic pad 22 made of rubber is used, the elastic stiffness of which is equal to 40 Newtons per millimeter.
• the wedging device 10 To avoid phenomena of flapping and / or buzzing, the wedging device 10 must prevent any relative movement of the opening 12 relative to the body 14.
• the mounting of the receptacle 18 on the body 14 is radially rigid.
• the mounting of the cylindrical guide head 54 in the lower axial bore 36 makes the connection between the support head 20 and the guide screw 46 rigid.
• the guide screw 46 also being radially rigid, the wedging device 10 is radially rigid, which prevents relative movements of the opening 12 relative to the body 14.
• the receptacle 18 and the support head 20 are made of a material whose elastic stiffness is greater than or equal to 1200 Newtons per millimeter.
• a different material will be chosen for the receptacle 18 and for the support head 20, in order to avoid the noises produced by the contact between two pieces of the same material.
• the receptacle 1 8 and the support head 20 are made of charged plastic.
• the receptacle 1 8 can be placed on the opening 12 and the stop 16 on the body 14.

Landscapes

• Vibration Dampers (AREA)
• Vibration Prevention Devices (AREA)
• Superstructure Of Vehicle (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9550232

Family Applications (1)

Country Status (5)

Family Cites Families (3)

• 1999
  • 1999-09-24 FR FR9911972A patent/FR2798898B1/fr not_active Expired - Fee Related
• 2000
  • 2000-09-22 DE DE60022062T patent/DE60022062T2/de not_active Expired - Lifetime
  • 2000-09-22 WO PCT/FR2000/002625 patent/WO2001021917A1/fr active IP Right Grant
  • 2000-09-22 ES ES00964346T patent/ES2243304T3/es not_active Expired - Lifetime
  • 2000-09-22 EP EP00964346A patent/EP1214492B1/de not_active Expired - Lifetime

Non-Patent Citations (1)

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