EP3786406B1 - Buffer with self-adjusting stop - Google Patents

Buffer with self-adjusting stop Download PDF

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Publication number
EP3786406B1
EP3786406B1 EP20184427.1A EP20184427A EP3786406B1 EP 3786406 B1 EP3786406 B1 EP 3786406B1 EP 20184427 A EP20184427 A EP 20184427A EP 3786406 B1 EP3786406 B1 EP 3786406B1
Authority
EP
European Patent Office
Prior art keywords
buffer
central body
self
base
stopper according
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.)
Active
Application number
EP20184427.1A
Other languages
German (de)
French (fr)
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EP3786406A1 (en
Inventor
Mikael Sicot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A Raymond SARL
Original Assignee
A Raymond SARL
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Publication date
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Publication of EP3786406A1 publication Critical patent/EP3786406A1/en
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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
    • E05F5/025—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 specially adapted for vehicle doors
    • 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
    • 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
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • 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
    • E05F7/00—Accessories for wings not provided for in other groups of this subclass
    • E05F7/04—Arrangements affording protection against rattling
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable or movable
    • E05Y2600/12—Adjustable or movable by manual operation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/56—Positioning or pre-mounting
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/531—Doors

Definitions

  • the present invention belongs to the field of vehicle equipment, in particular closing buffers, and relates more particularly to a buffer with a self-adjusting stop intended to hold a first pivoting structure on a second fixed structure such as a motor vehicle chassis.
  • the first pivoting structure can be a door, a hatch or a bonnet, or even a single/double leaf rear door of a utility vehicle.
  • a stop buffer for closing a tailgate typically comprises a stop fixed to the vehicle body, and a counter-stop on the tailgate, these two elements cooperating to hold the tailgate relative to the body when the tailgate is closed.
  • the rag can be equipped with a plurality of pads.
  • the abutment on the fixed structure is provided with a surface serving as an adjustable abutment. This type of device is known from the state of the art.
  • the British patent GB241 0990 discloses a stop buffer comprising a main body, a sliding element in the main body and a lock.
  • the main body and the sliding element are first fixed to the body.
  • the position of the sliding element is adjusted by closing the mobile structure.
  • the locking element is finally inserted into the sliding element to fix the position of the sliding element in the main body after the reopening of the mobile structure.
  • the position of the sliding element can be disturbed by various stresses such as the reopening of the mobile structure, the introduction of the locking element. In particular, the latter is made by means of an inclined surface. Once locked, there is no possibility of readjusting the device.
  • the patent document US2010/219648A1 discloses an adjustable stopper assembly comprising a base portion secured to a vehicle body or door, and a wedge portion movable relative to the base part between a plurality of positions comprising an outer position, an inner position and at least one intermediate position between the outer position and the inner position.
  • the patent document FR2885640A1 describes a stopper comprising a plate fixed to the body of a vehicle, a shoe carrying the stop surface, inclined towards the front of the shoe, and mounted to slide, by its side edges, in guide wings forming sliding the plate, and means for immobilizing the pad with respect to the plate.
  • the present invention aims to remedy these drawbacks, by proposing a buffer with a self-adjusting stop which allows simple assembly and rapid assembly in a given structure.
  • the present invention relates to a stamp device, or stamp, with a self-adjusting stop, comprising a stamp head having an upper surface serving as a stop, a base comprising a guide profile, and comprising a central body comprising a groove cooperating with said section, the central body being mounted on the base by a translational movement, in a first direction in a plane of movement, the central body partially receiving the stamp head by a face opposite to that in contact with the base, the buffer head being able to move relative to the central body in a third direction substantially perpendicular to the plane of movement, the buffer device further comprising a locking element inserted in the central body, in a second direction substantially perpendicular to the first direction and in the third direction, and operable in translation to lock the buffer head in the central body in the third direction and lock the central body on the base in the first direction.
  • the buffer makes it possible to attenuate the noise, in particular when closing a tailgate.
  • the abutment is self-adjusting in order to effect an adjustment of the buffer during assembly on a structure.
  • the stop raising which holds the mobile structure makes it possible to guarantee tension with the closed mobile structure.
  • the buffer makes it possible to keep the mobile structure closed radially in order to attenuate the noise.
  • the stamp head rises in the central body thanks to slopes located on the locking element.
  • the tampon head rests on the locking element in the locked position so as to prevent the unlocking of the locking element during stresses.
  • the upper surface of the stamp head is inclined relative to the plane formed by the first and second directions.
  • the central body can move in the first direction, the locking element being in the open position.
  • the stop buffer further comprises means for defining the course of the central body in the first direction.
  • the buffer with abutment further comprises means for positioning the central body on the base, the locking element being in the open position.
  • means for positioning the central body on the base comprise a rack on the base and a belt comprising a bulge.
  • said guide profile has a T-section.
  • the locking means consist of at least one rack on the T-guide profile and a rack on the locking element .
  • the buffer with self-adjusting stop further comprises means for maintaining the position of the head of the buffer in the third direction in the open position, preferably, the holding means is a rod elastically linked to the element lock, so that it rests on the stamp head.
  • the central body and the base are assembled by a snap-fit assembly.
  • the self-adjusting abutment buffer further comprises means for returning it to the open position.
  • the self-adjusting abutment buffer is not removable in the open position.
  • the stop buffer according to the invention makes it possible to simplify the process of its assembly between two structures and to reduce the assembly time and the number of parts.
  • FIG. 0 illustrates a pivoting structure 200, here a single/double leaf rear door of a commercial vehicle, which closes a fixed structure 300 of the vehicle, in this case the fixed part of the rear trunk of the vehicle.
  • a self-adjusting stopper buffer 100 is mounted on the fixed part of the trunk while an optional counterstop 220 is mounted on the rear door 200. The counterstop 220 comes into contact with the buffer head of the device 100 when the rear door is closed.
  • FIG. 1A shows a diagram of a self-adjusting stop buffer in the open position.
  • the self-adjusting stop buffer 100 according to the invention comprises a base 20, a central body 40, a buffer head 60 and a locking element 80.
  • These four components can be made by molding known plastic material, more particularly in engineering plastics such as polyamides, acetal resins, thermoplastic polyesters.
  • Such a self-adjusting stop buffer can be manufactured at low cost.
  • open position of a stop buffer means a position in which the stop head is adjustable, the locking element being in the open position
  • locked position of a buffer is understood to mean a position in which the abutment head is locked, the locking element being in the locked position.
  • the central body 40 receiving the stamp head 60 by its upper part and the locking element 80 by its left face can be assembled, by its lower part, to the base 20, by sliding mounting, for example by means of a rail.
  • the base 20 has two grooves 22 along the axis X of L-section, the bottoms of which are respectively opposite flanges 24, thus a central part 26 formed between the two grooves 22 constitutes an essentially T-shaped profile comprising a surface 26.
  • the base 20 further comprises two straight racks 30 substantially along the axis X and separated by a central band 28.
  • the central body 40 comprises in its lower part means suitable for sliding mounting on the base 20.
  • the central body 40 comprises an essentially T-shaped groove cooperating with said essentially T-shaped profile of the base 20.
  • its lower walls 43 can be housed in the L-shaped grooves 22.
  • this arrangement makes it possible to avoid a relative displacement between the base 20 and the central body in the direction of the Z axis.
  • the central body 40 further comprises two grooves 426 capable of receiving the straight racks 30 of the base 20, said grooves 426 being separated by a belt 48.
  • the self-adjusting abutment pad 100 includes a pad head 60 having an upper surface 62 which constitutes the abutment.
  • the stamp head 60 essentially has the shape of a triangular wedge, possibly raised, the triangular section of which is in the XZ plane, the surface 62 being inclined from the rear to the front.
  • the stamp head 60 has a recess 64 which has two straight grooves 642, one opposite the other, on the front and rear walls and provides an opening 65 on the right face of the stamp head 60.
  • the grooves lines 642 constitute rails with which the opening 65 is adapted to receive the locking element 80.
  • the central body 40 also has a recess with an upward opening 44, this recess being able to fit at least partially the stamp head 60.
  • the central body 40 has, on its right face, a lateral opening 46 able to receive the locking element 80.
  • the locking element On its front and rear walls, the locking element has, along the Y axis, two grooves 82 delimited respectively by lower edges 83 and upper edges 84.
  • the grooves 82 are able to receive the lower edges 644 of the grooves 642 when the locking element itself is received by the stamp head.
  • each groove 22 has a width L1 at its front face and a width L2 at its front face. back. The edges opposite the bottoms of the grooves 22 extend along the axis X.
  • the buffer assembly according to the invention is made as follows: (a) the central body 40 is first mounted on the base 20 by introducing the central body 40 on the T-section constituting a rail and by sliding it along the X axis; (b) the tampon head 60 is then placed in the central body 40, ensuring that their side openings 65 and 46 are on the same side; (c) the locking element is finally introduced by its face into the side opening 46 and also the opening 65.
  • THE figures 2A and 2B respectively illustrate a buffer with self-adjusting stop according to the invention in the open position and in the locked position.
  • the self-adjusting stop buffer according to the invention is preassembled with its components 20, 40, 60 and 80 as described above.
  • the pre-assembled stamp, as shown in the figure 2A is ready to be mounted on a structure such as a vehicle chassis.
  • THE figures 3A and 3B illustrate, respectively, a cross-sectional view of the pad along the section AA 'on the figure 2A where the tampon 100 is in the open position and a cross-sectional view of the tampon along the section BB 'on the figure 2B where buffer 100 is in the locked position, in the YZ plane.
  • the locking element 80 comprises at least one thrust ramp 86 on its face in contact with the buffer head 60 which comprises, in turn, at least one housing 66 defining a profile identical to the thrust ramp 86, the housing 66 being adapted to receive the thrust ramp 86 in the open position.
  • the housing 66 and the thrust ramp 86 are arranged so that, in the open position, when the locking element 80 is withdrawn from the central body 40, the thrust ramp 86 is blocked by the housing 66 and when pushes the locking element 40 towards the central body 40, the thrust ramp 86 comes out of the housing 66.
  • the thrust ramp 86 has, in the YZ plane, a rectangular trapezium section with its long base at the bottom.
  • the push ramp exits the housing by means of an inclined surface 862 comprising the inclined side of the rectangular trapezoid and a cooperating surface 662 of the housing 66, when the locking element is pushed towards the central body 40 by its right end.
  • the translational movement of the thrust ramp 86 relative to the buffer head 60 produces, by a cam effect with the cooperating surface 662 of the housing 66, a translation along the Z axis upwards of the buffer head. buffer in the central body 40, causing a relative raising of the buffer head 60 by a height H in the central body 40.
  • the height H corresponds to the thickness of the thrust ramp along the Z axis.
  • the assembly of the locking element and the stamp head is tightened in the locked position so that the unlocking of the locking element cannot be caused by simple stresses, due for example to the vibration of the frame on which the pad is mounted.
  • the locking element 80 comprises a bulge 89 and the central body 40 comprises a bulge 49. Thanks to the elasticity of the material and the slopes of these bulges 89 and 49, when the locking element 80 passes from open position to locked position, the bulges 89 and 49 cross one another and form a socket. Another advantage is to indicate the passage to the locked position of the lock element. This arrangement makes it possible to avoid unlocking by simple stresses, on the other hand, the passage from the locked position to the open position is possible with a disengagement effort provided.
  • the housing 66 has a vertical surface 664 serving as a stopper which makes it possible to prevent the thrust ramp from exiting the housing in the opposite direction.
  • the vertical face 864 of the ramp rests on the vertical surface 664, knowing that the buffer head 60 itself is fitted into the central body 40.
  • 3C and 3D figures illustrate, respectively, the cooperation of ramp 86 and housing 66 in detail in the open and locked positions.
  • the section in the YZ plane of the thrust ramp 86 is a right triangle.
  • the thrust ramp comprises a profile which allows several consecutive extensions of the abutment head.
  • FIG 4A illustrates a bottom view of the entire tampon head 60, locking member 80, and central body 40 of the tampon in the open position on the figure 2A ;
  • figure 4B illustrates a bottom view of the same pad assembly in the locked position on the figure 2B .
  • the belt 48 of the central body 40 comprises a locking device, on a lower face, for example at least one bulge 482 forming a notch which engages with the second rack 32 provided on the base 20 when the central body is mounted on the latter.
  • this blocking device makes it possible to position the central body 40 on the base 20 during the translational movement of the central body 40 relative to the latter, as illustrated in the figures 5 and 5A which will be detailed later. Since the central body 20 can be made of plastic material, the belt 48 has a certain elasticity. The bulge 482 therefore does not prevent this relative translation movement. This represents another advantage of the invention which will be detailed later, in particular when mounting the buffer on a frame.
  • the central body 40 comprises a projecting element 484 downwards serving as a stopper, in one end of the belt 48.
  • said at least one rack 88 of the locking element 20 is exposed to the grooves 426 which receive said racks 30 of the base 20.
  • the assembly of the central body, the base and the locking element are arranged so as to so that the racks 30 and 88 cooperate in the locked position, blocking the central body 40 in the axis X.
  • said at least one rack of the locking element may be in the form of ridges or contiguous grooves forming notches.
  • FIG 5 illustrates a sectional view of the tampon in the open position following the section CC ' on the Figure 3A in the XZ plane, from which one can observe a system for positioning the central body on the base 20.
  • the bulge is in the form of a tooth 482 meshing with the rack 30 with projections 32.
  • this positioning means 482 and 30 makes it possible to maintain the position of the central body 40 on the base 20 in the X axis without unwanted displacement, for example, the central body 40 can stably occupy an initial position after the buffer in the open position is mounted on a structure, and a second position after adjustment in which the buffer is locked by actuating the locking element 80.
  • this positioning means makes it possible to avoid undesirable movements of the central body 40, for example a translation caused by the force of gravity or else a vibration.
  • the projecting element 484 constituting a first blocking mechanism rests on the rear face of the base 20, or its central strip 28 which comprises, if necessary, a recess 282 capable of receiving the stopper 484.
  • the recess 282 extends along the rack 30 forming a stage. The bulge 482 cannot therefore move beyond the position it occupies on the rack 32 when the stopper 484 comes to rest on the base 20, thus defining a first end of the path of the positioning means 482.
  • FIG. 6A illustrates a cross-sectional view of the buffer along the DD' cut in the XZ plane on the figure 2B .
  • FIG 6B illustrates a view of the assembly of the locking element, the stamp head, and the central body of the stop stamp in the locked position on the figure 2B .
  • the locking element 80 includes means for retaining the stamp head in the Z axis.
  • the locking element includes at least one groove 82 extending along the Y axis, if necessary, a groove 82 on each of its front and rear faces.
  • the buffer head receives it through its opening 65 with a vertical T-section, the lower edges 644 being received by at least one groove 82.
  • these means make it possible to limit the movement of the stamp head in the Z axis.
  • FIG. 7A we observe the buffer stopper according to the invention, seen from below, that the assembly of the central body 40 and the base 20 is also characterized by an elastic interlocking.
  • FIG 7B illustrates a second locking mechanism consisting of an element 432 on a lower wall 43 of the central body and of a second element 232 in a groove 22 of the base, these two elements being adapted to form a snap-fit assembly.
  • This latching makes it possible to define a second end of the path of the positioning means 482 via its blocking role.
  • the first 484 and the second 232, 432 locking mechanisms delimit the path of the central body 40 on the base 20, thus making it impossible to disassemble these two components 20, 40.
  • an operator who adjusts the stop buffer in the open position does not run the risk of misplacing a constituent element.
  • the central body 40 can be introduced, during assembly, only by the face opposite to that which comprises the stopper 484.
  • the lower wall 43 of the central body 40 and the groove 24 of the base all have a generally increasing width along the Y axis, respectively, between D1 and D2 (D1 ⁇ D2), and between L1 and L2 (L1 ⁇ L2 ).
  • D1 ⁇ D2 D1 ⁇ D2
  • L1 and L2 L1 ⁇ L2
  • the buffer according to the invention further comprises means making it possible to maintain the position of the buffer head in the central body 40, particularly in the Z axis, even in the open position.
  • This will be detailed later with the help of figures 8A and 8B which illustrate, respectively, a partial sectional view of the buffer in the open position along the section EE 'on the figure 2A and a partial cross-sectional view of the tampon in the locked position according to the cross-section FF' on the figure 2B , in the YZ plane.
  • the locking element 80 comprises at least one rigid element 85, for example a rod.
  • This holding element 85 is linked to the lock, for example by means of a torsion spring, so that it bears on the stamp head in order to hold it in the Z axis, in the open position as in the locked position.
  • these means make it possible to maintain the vertical position of the buffer head, in particular in the open position. For example, during the routing and/or handling of the buffer according to the invention, the absence of relative movement between components makes it possible to limit their degradation.
  • the preassembled stop buffer can be mounted on the fixed structure according to the following steps: (i) The self-adjusting stop buffer 100 is first fixed to the frame in a known manner, for example with usual fixing means such as screws, anti-creep rings and washers. (ii) the second structure is rotated to adjust the central body 40 in the first direction X with respect to the base 20; - (iii) We reopen the second structure; (iv) Raise tampon head 60 by pushing locking member 80 into central body 40 until it is in the locked position, as shown in the figures. figure 2B And 3B , the location 81 being outside the central body 40. (v) The door is closed again, a prestress having then been introduced by the effect of the raising of the buffer head 60.
  • the buffer device with abutment allows simple and rapid assembly, and in particular to reduce the time required to adjust the buffer.

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention appartient au domaine des équipements de véhicules, notamment des tampons de fermeture, et concerne plus particulièrement un tampon à butée auto-ajustable destiné à maintenir une première structure pivotante sur une deuxième structure fixe telle qu'un châssis de véhicule automobile. Par exemple, la première structure pivotante peut être une portière, un haillon ou un capot, ou encore une porte arrière à simple/double battant d'un véhicule utilitaire.The present invention belongs to the field of vehicle equipment, in particular closing buffers, and relates more particularly to a buffer with a self-adjusting stop intended to hold a first pivoting structure on a second fixed structure such as a motor vehicle chassis. For example, the first pivoting structure can be a door, a hatch or a bonnet, or even a single/double leaf rear door of a utility vehicle.

Technique antérieurePrior technique

Un tampon à butée pour la fermeture d'un haillon comprend typiquement une butée fixée à la caisse de véhicule, et une contrebutée sur haillon, ces deux éléments coopérant pour maintenir le haillon par rapport à la caisse lorsque le haillon est fermé. Le haillon peut être équipé d'une pluralité de tampons. Dans le but de faciliter le montage du tampon notamment d'alignement de ces deux éléments, la butée sur la structure fixe est pourvue une surface servant de butée ajustable. On connaît de l'état de la technique ce type de dispositif.A stop buffer for closing a tailgate typically comprises a stop fixed to the vehicle body, and a counter-stop on the tailgate, these two elements cooperating to hold the tailgate relative to the body when the tailgate is closed. The rag can be equipped with a plurality of pads. In order to facilitate the mounting of the buffer, in particular the alignment of these two elements, the abutment on the fixed structure is provided with a surface serving as an adjustable abutment. This type of device is known from the state of the art.

Le brevet britannique GB241 0990 décrit un tampon à butée comportant un corps principal, un élément glissant dans le corps principal et un verrou. Pour son montage, le corps principal et l'élément glissant sont fixés dans un premier temps sur la caisse. La position de l'élément glissant est réglée par la fermeture de la structure mobile. L'élément de verrouillage est enfin inséré dans l'élément glissant pour fixer la position de l'élément glissant dans le corps principal après la réouverture de la structure mobile. La position de l'élément glissant peut être perturbée par différentes sollicitations telles que la réouverture de la structure mobile, l'introduction de l'élément de verrouillage. En particulier, cette dernière est réalisée au moyen d'une surface inclinée. Une fois verrouillé, aucune possibilité de réajuster le dispositif n'est prévue. Le document brevet US2010/219648A1 décrit un ensemble de butée ajustable comprenant une partie de base fixée à la carrosserie d'un véhicule ou à la porte, et une partie de cale mobile par rapport à la partie de base entre une pluralité de positions comprenant une position extérieure, une position intérieure et au moins une position intermédiaire entre la position extérieure et la position intérieure. Le document brevet FR2885640A1 décrit une butée comportant une platine fixée à la caisse d'un véhicule, un patin portant la surface d'arrêt, inclinée vers l'avant du patin, et monté à coulissement, par ses bords latéraux, dans des ailes de guidage formant glissières de la platine, et des moyens d'immobilisation du patin par rapport à la platine.The British patent GB241 0990 discloses a stop buffer comprising a main body, a sliding element in the main body and a lock. For its assembly, the main body and the sliding element are first fixed to the body. The position of the sliding element is adjusted by closing the mobile structure. The locking element is finally inserted into the sliding element to fix the position of the sliding element in the main body after the reopening of the mobile structure. The position of the sliding element can be disturbed by various stresses such as the reopening of the mobile structure, the introduction of the locking element. In particular, the latter is made by means of an inclined surface. Once locked, there is no possibility of readjusting the device. The patent document US2010/219648A1 discloses an adjustable stopper assembly comprising a base portion secured to a vehicle body or door, and a wedge portion movable relative to the base part between a plurality of positions comprising an outer position, an inner position and at least one intermediate position between the outer position and the inner position. The patent document FR2885640A1 describes a stopper comprising a plate fixed to the body of a vehicle, a shoe carrying the stop surface, inclined towards the front of the shoe, and mounted to slide, by its side edges, in guide wings forming sliding the plate, and means for immobilizing the pad with respect to the plate.

Exposé de l'inventionDisclosure of Invention

La présente invention vise à remédier à ces inconvénients, en proposant un tampon à butée auto-ajustable qui permet un assemblage simple et un montage rapide dans une structure donnée.The present invention aims to remedy these drawbacks, by proposing a buffer with a self-adjusting stop which allows simple assembly and rapid assembly in a given structure.

À cet effet, la présente invention concerne un dispositif de tampon, ou tampon, à butée auto-ajustable, comprenant une tête de tampon présentant une surface supérieure servant de butée, une embase comportant un profilé de guidage, et comprenant un corps central comportant une rainure coopérant avec ledit profilé, le corps central étant monté sur l'embase par un mouvement de translation, suivant une première direction dans un plan de mouvement, le corps central recevant partiellement la tête de tampon par une face opposée à celle en contact de l'embase, la tête de tampon pouvant se déplacer par rapport au corps central suivant une troisième direction sensiblement perpendiculaire au plan de mouvement, le dispositif de tampon comprenant en outre un élément de verrouillage inséré dans le corps central, suivant une deuxième direction sensiblement perpendiculaire à la première direction et à la troisième direction, et actionnable en translation pour bloquer dans la troisième direction la tête de tampon dans le corps central et bloquer dans la première direction le corps central sur l'embase.To this end, the present invention relates to a stamp device, or stamp, with a self-adjusting stop, comprising a stamp head having an upper surface serving as a stop, a base comprising a guide profile, and comprising a central body comprising a groove cooperating with said section, the central body being mounted on the base by a translational movement, in a first direction in a plane of movement, the central body partially receiving the stamp head by a face opposite to that in contact with the base, the buffer head being able to move relative to the central body in a third direction substantially perpendicular to the plane of movement, the buffer device further comprising a locking element inserted in the central body, in a second direction substantially perpendicular to the first direction and in the third direction, and operable in translation to lock the buffer head in the central body in the third direction and lock the central body on the base in the first direction.

Selon un premier aspect de l'invention, le tampon à butée auto-ajustable présente les caractéristiques suivantes :

  • l'élément de verrouillage et la tête de tampon comportent, respectivement, au moins une rampe de poussée et au moins un logement apte à recevoir ladite au moins une rampe, ladite au moins une rampe de poussée et ledit au moins un logement étant aptes à, lorsque l'élément de verrouillage est actionné en translation, produire un effet de came et permettre le rehaussement de la tête de tampon ;
  • l'élément de verrouillage a une position ouverte, dans le corps central, dans laquelle ladite au moins une rampe de poussée est reçue par ledit au moins un logement et l'élément de verrouillage peut être enfoncé suivant la deuxième direction et une position verrouillée, dans laquelle la tête de tampon est bloquée dans la troisième direction ;
  • l'élément de verrouillage et l'embase comportent des moyens de verrouillage qui coopèrent uniquement dans la position verrouillée pour bloquer le corps central dans la première direction.
According to a first aspect of the invention, the buffer with self-adjusting stop has the following characteristics:
  • the locking element and the buffer head comprise, respectively, at least one push ramp and at least one housing capable of receiving said at least one ramp, said at least one push ramp and said at least one housing being able to, when the locking element is actuated in translation, produce a cam effect and allow the raising of the buffer head;
  • the locking element has an open position, in the central body, in which said at least one thrust ramp is received by said at least one housing and the locking element can be pressed in the second direction and a locked position, wherein the stamp head is blocked in the third direction;
  • the locking element and the base comprise locking means which cooperate only in the locked position to lock the central body in the first direction.

Avantageusement, le tampon permet d'atténuer le bruit, notamment lors de la fermeture d'un hayon.Advantageously, the buffer makes it possible to attenuate the noise, in particular when closing a tailgate.

Avantageusement, la butée est auto-ajustable afin d'effectuer un réglage du tampon lors du montage sur une structure.Advantageously, the abutment is self-adjusting in order to effect an adjustment of the buffer during assembly on a structure.

Avantageusement, lors du verrouillage du tampon à butée après réglage, le rehaussement de butée qui maintient la structure mobile permet de garantir une tension avec la structure mobile fermée.Advantageously, when locking the stop buffer after adjustment, the stop raising which holds the mobile structure makes it possible to guarantee tension with the closed mobile structure.

Avantageusement, le tampon permet de maintenir radialement la structure mobile fermée afin d'atténuer le bruit.Advantageously, the buffer makes it possible to keep the mobile structure closed radially in order to attenuate the noise.

Avantageusement, la tête de tampon remonte dans le corps central grâce à des pentes situées sur l'élément de verrouillage.Advantageously, the stamp head rises in the central body thanks to slopes located on the locking element.

Avantageusement, la tête de tampon s'appuie sur l'élément de verrouillage en position verrouillée de sorte à éviter le déverrouillage de l'élément de verrouillage lors des sollicitations.Advantageously, the tampon head rests on the locking element in the locked position so as to prevent the unlocking of the locking element during stresses.

L'invention est avantageusement mise en oeuvre selon les modes de réalisation et les variantes exposées ci-après, lesquelles sont à considérer individuellement ou selon toute combinaison techniquement opérante.The invention is advantageously implemented according to the embodiments and variants set out below, which are to be considered individually or according to any technically effective combination.

Dans un mode de réalisation, la surface supérieure de la tête de tampon est inclinée par rapport au plan formé par la première et la deuxième directions.In one embodiment, the upper surface of the stamp head is inclined relative to the plane formed by the first and second directions.

Dans un mode de réalisation, le corps central peut se déplacer dans la première direction, l'élément de verrouillage étant en position ouverte.In one embodiment, the central body can move in the first direction, the locking element being in the open position.

Dans un mode de réalisation, le tampon à butée comporte en outre des moyens pour définir le parcours du corps central dans la première direction.In one embodiment, the stop buffer further comprises means for defining the course of the central body in the first direction.

Dans un mode de réalisation, le tampon à butée comporte en outre des moyens pour positionner le corps central sur l'embase, l'élément de verrouillage étant en position ouverte.In one embodiment, the buffer with abutment further comprises means for positioning the central body on the base, the locking element being in the open position.

Dans un mode de réalisation, des moyens pour positionner le corps central sur l'embase comportent une crémaillère sur l'embase et une ceinture comportant un renflement.In one embodiment, means for positioning the central body on the base comprise a rack on the base and a belt comprising a bulge.

Dans un mode de réalisation, ledit profilé de guidage présente une section en T. Dans un mode de réalisation, les moyens de verrouillage sont constitués d'au moins une crémaillère sur le profilé de guidage en T et une crémaillère de l'élément de verrouillage.In one embodiment, said guide profile has a T-section. In one embodiment, the locking means consist of at least one rack on the T-guide profile and a rack on the locking element .

Dans un mode de réalisation, le tampon à butée auto-ajustable comporte en outre des moyens pour maintenir la position de la tête du tampon dans la troisième direction en position ouverte, préférentiellement, les moyens de maintien est une tige liée élastiquement à l'élément de verrouillage, de sorte qu'il s'appuie sur la tête de tampon.In one embodiment, the buffer with self-adjusting stop further comprises means for maintaining the position of the head of the buffer in the third direction in the open position, preferably, the holding means is a rod elastically linked to the element lock, so that it rests on the stamp head.

Dans un mode de réalisation, le corps central et l'embase sont assemblés par un montage à encliquetage.In one embodiment, the central body and the base are assembled by a snap-fit assembly.

Dans un mode de réalisation, le tampon à butée auto-ajustable comporte en outre des moyens pour le remettre en position ouverte.In one embodiment, the self-adjusting abutment buffer further comprises means for returning it to the open position.

Dans un mode de réalisation, le tampon à butée auto-ajustable n'est pas démontable en position ouverte.In one embodiment, the self-adjusting abutment buffer is not removable in the open position.

Selon un second aspect, la présente invention concerne un procédé de montage d'un dispositif de tampon selon l'invention sur une première structure pour la séparer d'une deuxième structure mobile. Ce procédé comporte les étapes suivantes :

  • (i) fixer le tampon à butée auto-ajustable en position ouverte sur la première structure ;
  • (ii) tourner la deuxième structure pour ajuster le corps central dans la première direction vis-à-vis de l'embase ;
  • (iii) réouvrir la deuxième structure ;
  • (iv) mettre le dispositif de tampon en position verrouillée en actionnant l'élément de verrouillage.
According to a second aspect, the present invention relates to a method for mounting a buffer device according to the invention on a first structure to separate it from a second mobile structure. This process comprises the following steps:
  • (i) fixing the self-adjusting stopper in the open position on the first structure;
  • (ii) rotating the second structure to adjust the central body in the first direction with respect to the base;
  • (iii) reopen the second structure;
  • (iv) placing the tampon device in the locked position by actuating the locking element.

Avantageusement, le tampon à butée selon l'invention permet de simplifier le processus de son montage entre deux structures et de réduire le temps de montage et le nombre de pièces.Advantageously, the stop buffer according to the invention makes it possible to simplify the process of its assembly between two structures and to reduce the assembly time and the number of parts.

Brève description des figuresBrief description of figures

D'autres avantages, buts et caractéristiques de la présente invention ressortent de la description qui suit faite, dans un but explicatif et nullement limitatif, en regard des dessins annexés, dans lesquels :

  • La figure 0 représente une vue en coupe d'une partie d'une structure pivotante et d'une structure fixe avec un tampon à butée auto-ajustable selon l'invention ;
  • La figure 1A représente une vue en perspective d'un tampon à butée auto-ajustable selon l'invention ;
  • La figure 1B représente une vue en éclaté d'un tampon à butée auto-ajustable selon l'invention ;
  • La figure 1C représente une illustration schématique d'une embase d'un tampon à butée auto-ajustable selon un mode de réalisation ;
  • La figure 2A représente un schéma de réglage et de verrouillage d'un tampon à butée auto-ajustable préassemblé et en position ouverte ;
  • La figure 2B représente un schéma de réglage et de verrouillage d'un tampon à butée auto-ajustable en position verrouillée ;
  • La figure 3A représente une coupe en perspective du tampon suivant la coupe AA ' sur la figure 2A ;
  • La figure 3B représente une vue en coupe du tampon suivant la coupe BB ' sur la figure 2B ;
  • La figure 3C représente une vue de détail de la rampe de poussée et son logement de la figure 3A ;
  • La figure 3D représente une vue de détail de la rampe de poussée et son logement de la figure 3B ;
  • La figure 4A représente une vue de dessous de l'ensemble de la tête de tampon, le corps central et l'élément de verrouillage du tampon à butée auto-ajustable en position ouverte sur la figure 2A ;
  • La figure 4B représente une vue de dessous de l'ensemble de la tête de tampon, le corps central et l'élément de verrouillage du tampon à butée auto-ajustable en position verrouillée sur la figure 2B ;
  • La figure 5 représente une vue en coupe du tampon suivant la coupe CC ' sur la figure 2A ;
  • La figure 5A représente une vue de détail de la partie A sur la figure 5A ;
  • La figure 5B représente une vue de détail de la partie B sur la figure 5A ;
  • La figure 6A représente une vue en coupe du tampon suivant la coupe DD ' sur la figure 2B ;
  • La figure 6B représente une vue de l'ensemble de la tête de tampon, le corps central et l'élément de verrouillage du tampon à butée auto-ajustable sur la figure 2B ;
  • La figure 7A représente une vue de coupe d'un tampon à butée auto-ajustable en position de déploiement maximum selon un mode de réalisation ;
  • La figure 7B représente une vue de détail de la figure 7A ;
  • La figure 8A représente une vue partielle en coupe du tampon suivant la coupe EE ' sur la figure 2A ;
  • La figure 8B représente une vue partielle en coupe du tampon suivant la coupe FF ' sur la figure 2B.
Other advantages, objects and characteristics of the present invention emerge from the description which follows given, for the purpose of explanation and in no way limiting, with reference to the appended drawings, in which:
  • There figure 0 shows a cross-sectional view of part of a pivoting structure and a fixed structure with a self-adjusting stop buffer according to the invention;
  • There Figure 1A shows a perspective view of a buffer with self-adjusting stop according to the invention;
  • There figure 1B shows an exploded view of a buffer with self-adjusting stop according to the invention;
  • There figure 1C shows a schematic illustration of a base of a self-adjusting buffer according to one embodiment;
  • There figure 2A shows an adjustment and locking diagram of a pre-assembled self-adjusting buffer in the open position;
  • There figure 2B shows a diagram for adjusting and locking a buffer with a self-adjusting stop in the locked position;
  • There Figure 3A represents a section in perspective of the buffer following the section AA ' on the figure 2A ;
  • There Figure 3B represents a sectional view of the tampon following the section BB ' on the figure 2B ;
  • There Fig. 3C shows a detail view of the push ramp and its housing from the Figure 3A ;
  • There 3d figure shows a detail view of the push ramp and its housing from the Figure 3B ;
  • There figure 4A shows a bottom view of the tampon head assembly, the central body and the locking element of the tampon with self-adjusting stop in the open position on the figure 2A ;
  • There figure 4B shows a bottom view of the stamp head assembly, the central body and the locking element of the stamp with self-adjusting stop in the locked position on the figure 2B ;
  • There figure 5 represents a cross-sectional view of the pad following the CC' section on the figure 2A ;
  • There figure 5A shows a detail view of part A on the figure 5A ;
  • There figure 5B shows a detail view of part B on the figure 5A ;
  • There Figure 6A represents a sectional view of the tampon following the section DD ' on the figure 2B ;
  • There figure 6B shows an assembly view of the tampon head, the central body and the locking element of the tampon with self-adjusting stop on the figure 2B ;
  • There Figure 7A shows a cross-sectional view of a buffer with self-adjusting stop in the maximum deployment position according to one embodiment;
  • There figure 7B shows a detail view of the Figure 7A ;
  • There figure 8A represents a partial sectional view of the pad following section EE 'on the figure 2A ;
  • There figure 8B represents a partial cross-sectional view of the buffer following the FF 'section on the figure 2B .

Description des modes de réalisationDescription of embodiments

Les différentes figures ainsi que les éléments d'une même figure ne sont pas nécessairement représentées à la même échelle. Sur l'ensemble des figures, les éléments identiques portent la même référence numérique.The various figures as well as the elements of the same figure are not necessarily represented on the same scale. In all of the figures, identical elements bear the same reference numeral.

La terminologie employée dans la présente description ne doit en aucun cas être interprétée de manière limitative ou restrictive, simplement parce qu'elle est employée en conjonction avec une description détaillée de certains modes de réalisation de l'invention.The terminology employed in this description should in no way be interpreted in a limiting or restrictive manner, simply because it is used in conjunction with a detailed description of certain embodiments of the invention.

Dans toute la description, les termes « haut », « bas », « avant », « arrière », « supérieur », « inférieur », « vertical », « horizontal » ainsi que les termes et expressions qui peuvent leurs être associés ou en être dérivés seront compris, sauf précision ou évidence contraire, comme ayant le sens que leur donnerait un opérateur du dispositif représenté sur la figure 1A. Compte tenu du système d'axes (XYZ) représenté sur cette figure, l'avant et le haut sont situés respectivement suivant les X croissants et les Z croissants.Throughout the description, the terms "top", "bottom", "front", "rear", "upper", "lower", "vertical", "horizontal" as well as the terms and expressions which may be associated with them or be derived therefrom shall be understood, unless specified or otherwise evident, as having the meaning given to them by an operator of the device represented on the Figure 1A . Given the system of axes (XYZ) shown in this figure, the front and the top are located respectively along the increasing X and increasing Z.

La figure 0 illustre une structure pivotante 200, ici une porte arrière à simple/double battant d'un véhicule utilitaire, qui ferme une structure fixe 300 du véhicule, dans le cas présent la partie fixe du coffre arrière du véhicule. Un tampon à butée auto-ajustable 100 est monté sur la partie fixe de coffre tandis qu'une contrebutée 220 optionnelle est montée sur la porte arrière 200. La contrebutée 220 vient en contact avec la tête de tampon du dispositif 100 quand la porte arrière est fermée.There figure 0 illustrates a pivoting structure 200, here a single/double leaf rear door of a commercial vehicle, which closes a fixed structure 300 of the vehicle, in this case the fixed part of the rear trunk of the vehicle. A self-adjusting stopper buffer 100 is mounted on the fixed part of the trunk while an optional counterstop 220 is mounted on the rear door 200. The counterstop 220 comes into contact with the buffer head of the device 100 when the rear door is closed.

La figure 1A montre un schéma d'un tampon à butée auto-ajustable en position ouverte. Sur la figure 1A, le tampon à butée auto-ajustable 100 selon l'invention comprend une embase 20, un corps central 40, une tête de tampon 60 et un élément de verrouillage 80.There Figure 1A shows a diagram of a self-adjusting stop buffer in the open position. On the Figure 1A , the self-adjusting stop buffer 100 according to the invention comprises a base 20, a central body 40, a buffer head 60 and a locking element 80.

Ces quatre composants peuvent être réalisés par moulage de matière plastique connue, plus particulièrement en plastiques techniques tels que des polyamides, des résines d'acétal, des polyesters thermoplastiques.These four components can be made by molding known plastic material, more particularly in engineering plastics such as polyamides, acetal resins, thermoplastic polyesters.

Ainsi, un tel tampon à butée auto-ajustable peut être fabriqué à faible coût.Thus, such a self-adjusting stop buffer can be manufactured at low cost.

Dans la présente description, on entend par « position ouverte » d'un tampon à butée une position dans laquelle la tête de butée est ajustable, l'élément de verrouillage se trouvant dans la position ouverte ; on entend par « position verrouillée » d'un tampon à butée une position dans laquelle la tête à butée est verrouillée, l'élément de verrouillage se trouvant dans la position verrouillée.In the present description, the term “open position” of a stop buffer means a position in which the stop head is adjustable, the locking element being in the open position; “locked position” of a buffer is understood to mean a position in which the abutment head is locked, the locking element being in the locked position.

Le corps central 40 recevant la tête de tampon 60 par sa partie supérieure et l'élément de verrouillage 80 par sa face gauche peut être assemblée, par sa partie inférieure, à l'embase 20, par montage coulissant, par exemple au moyen d'un rail.The central body 40 receiving the stamp head 60 by its upper part and the locking element 80 by its left face can be assembled, by its lower part, to the base 20, by sliding mounting, for example by means of a rail.

Dans le mode de réalisation de la figure 1B, l'embase 20 présente deux rainures 22 suivant l'axe X de section en L dont les fonds sont respectivement en regard de rebords 24, ainsi, une partie centrale 26 formée entre les deux rainures 22 constitue un profilé essentiellement en T comportant une surface supérieure 26. Sur la surface supérieure 26, l'embase 20 comporte en outre deux crémaillères droites 30 substantiellement suivant l'axe X et séparées par une bande centrale 28. Une crémaillère droite 32 qui s'étend suivant l'axe X, se présente sur laquelle bande centrale 28.In the embodiment of the figure 1B , the base 20 has two grooves 22 along the axis X of L-section, the bottoms of which are respectively opposite flanges 24, thus a central part 26 formed between the two grooves 22 constitutes an essentially T-shaped profile comprising a surface 26. On the upper surface 26, the base 20 further comprises two straight racks 30 substantially along the axis X and separated by a central band 28. A straight rack 32 which extends along the X axis, presents itself on which central band 28.

Le corps central 40 comporte dans sa partie inférieure des moyens aptes à réaliser un montage coulissant sur l'embase 20. Dans un mode de réalisation décrit, le corps central 40 comporte une rainure essentiellement en T coopérant avec ledit profilé essentiellement en T de l'embase 20. Lorsque le corps central 40 est montée sur l'embase 20, ses parois inférieures 43 peuvent être logées dans les rainures 22 en L. Avantageusement, cet agencement permet d'éviter un déplacement relatif entre l'embase 20 et le corps central dans la direction de l'axe Z. Le corps central 40 comporte en outre deux rainures 426 aptes à recevoir les crémaillères droites 30 de l'embase 20, lesdites rainures 426 étant séparées par une ceinture 48.The central body 40 comprises in its lower part means suitable for sliding mounting on the base 20. In one embodiment described, the central body 40 comprises an essentially T-shaped groove cooperating with said essentially T-shaped profile of the base 20. When the central body 40 is mounted on the base 20, its lower walls 43 can be housed in the L-shaped grooves 22. Advantageously, this arrangement makes it possible to avoid a relative displacement between the base 20 and the central body in the direction of the Z axis. The central body 40 further comprises two grooves 426 capable of receiving the straight racks 30 of the base 20, said grooves 426 being separated by a belt 48.

Sur la figure 1B, le tampon à butée auto-ajustable 100 comporte une tête de tampon 60 présentant une surface supérieure 62 qui constitue la butée. Dans le mode de réalisation illustré, la tête de tampon 60 présente essentiellement la forme d'une cale triangulaire, éventuellement haussée dont la section triangulaire se trouve dans le plan XZ, la surface 62 étant inclinée de l'arrière vers l'avant. La tête de tampon 60 présente un évidement 64 qui comporte deux rainures droites 642, l'une en regard de l'autre, sur les parois avant et arrière et donne une ouverture 65 sur la face droite de la tête de tampon 60. Les rainures droites 642 constituent des rails avec lesquels l'ouverture 65 est apte à recevoir l'élément de verrouillage 80.On the figure 1B , the self-adjusting abutment pad 100 includes a pad head 60 having an upper surface 62 which constitutes the abutment. In the illustrated embodiment, the stamp head 60 essentially has the shape of a triangular wedge, possibly raised, the triangular section of which is in the XZ plane, the surface 62 being inclined from the rear to the front. The stamp head 60 has a recess 64 which has two straight grooves 642, one opposite the other, on the front and rear walls and provides an opening 65 on the right face of the stamp head 60. The grooves lines 642 constitute rails with which the opening 65 is adapted to receive the locking element 80.

Le corps central 40 présente également un évidement avec une ouverture 44 vers le haut, cet évidement étant apte à emboiter au moins partiellement la tête de tampon 60. Le corps central 40 présente, sur sa face droite, une ouverture latérale 46 apte à recevoir l'élément de verrouillage 80.The central body 40 also has a recess with an upward opening 44, this recess being able to fit at least partially the stamp head 60. The central body 40 has, on its right face, a lateral opening 46 able to receive the locking element 80.

Sur ses parois avant et arrière, l'élément de verrouillage présente, suivant l'axe Y, deux rainures 82 délimitées respectivement par des rebords inférieurs 83 et des rebords supérieurs 84. Les rainures 82 sont aptes à recevoir les bords inférieurs 644 des rainures 642 lorsque l'élément de verrouillage lui-même est reçu par la tête de tampon.On its front and rear walls, the locking element has, along the Y axis, two grooves 82 delimited respectively by lower edges 83 and upper edges 84. The grooves 82 are able to receive the lower edges 644 of the grooves 642 when the locking element itself is received by the stamp head.

Dans le mode de réalisation de la figure 1B, il est également prévu un emplacement 81 à l'extrémité droite de l'élément de verrouillage 80.In the embodiment of the figure 1B , there is also a location 81 at the right end of the locking element 80.

Sur la figure 1C, on observe une embase 20 et des crémaillères droites 30 et 32 essentiellement suivant la direction X sur la face supérieure de l'embase 20. Chaque rainure 22 présente une largeur L1 au niveau de sa face avant et une largeur L2 au niveau de sa face arrière. Les rebords en regard des fonds des rainures 22 s'étendent le long de l'axe X.On the figure 1C , there is a base 20 and straight racks 30 and 32 essentially along the direction X on the upper face of the base 20. Each groove 22 has a width L1 at its front face and a width L2 at its front face. back. The edges opposite the bottoms of the grooves 22 extend along the axis X.

Dans un mode de réalisation, l'assemblage de tampon selon l'invention est réalisé de la manière suivante : (a) on monte d'abord le corps central 40 sur l'embase 20 en introduisant le corps central 40 sur le profilé en T constituant un rail et en la faisant glisser suivant l'axe X ; (b) on pose ensuite la tête de tampon 60 dans le corps central 40 en s'assurant que leurs ouvertures latérales 65 et 46 soient du même côté; (c) on introduit finalement l'élément de verrouillage par sa face dans l'ouverture latérale 46 et également l'ouverture 65.In one embodiment, the buffer assembly according to the invention is made as follows: (a) the central body 40 is first mounted on the base 20 by introducing the central body 40 on the T-section constituting a rail and by sliding it along the X axis; (b) the tampon head 60 is then placed in the central body 40, ensuring that their side openings 65 and 46 are on the same side; (c) the locking element is finally introduced by its face into the side opening 46 and also the opening 65.

Les figures 2A et 2B illustrent respectivement un tampon à butée auto-ajustable selon l'invention en position ouverte et en position verrouillée. Le tampon à butée auto-ajustable selon l'invention est préassemblé avec ses composants 20, 40, 60 et 80 tel que décrit plus haut. Le tampon préassemblé, comme illustré sur la figure 2A, est prêt à être monté sur une structure telle qu'un châssis de véhicule.THE figures 2A and 2B respectively illustrate a buffer with self-adjusting stop according to the invention in the open position and in the locked position. The self-adjusting stop buffer according to the invention is preassembled with its components 20, 40, 60 and 80 as described above. The pre-assembled stamp, as shown in the figure 2A , is ready to be mounted on a structure such as a vehicle chassis.

Les figures 3A et 3B illustrent, respectivement, une vue en coupe du tampon suivant la coupe AA ' sur la figure 2A où le tampon 100 est en position ouverte et une vue en coupe du tampon suivant la coupe BB ' sur la figure 2B où le tampon 100 est en position verrouillée, dans le plan YZ.THE figures 3A and 3B illustrate, respectively, a cross-sectional view of the pad along the section AA 'on the figure 2A where the tampon 100 is in the open position and a cross-sectional view of the tampon along the section BB 'on the figure 2B where buffer 100 is in the locked position, in the YZ plane.

L'élément de verrouillage 80 comporte au moins une rampe de poussée 86 sur sa face de contact avec la tête de tampon 60 qui comporte, quant à elle, au moins un logement 66 définissant un profil identique à la rampe de poussée 86, le logement 66 étant apte à recevoir la rampe de poussée 86 en position ouverte. Le logement 66 et la rampe de poussée 86 sont agencés de sorte que, en position ouverte, lorsqu'on retire l'élément de verrouillage 80 du corps central 40, la rampe de poussée 86 soit bloquée par le logement 66 et lorsque l'on enfonce l'élément de verrouillage 40 vers le corps central 40, la rampe de poussée 86 sorte du logement 66.The locking element 80 comprises at least one thrust ramp 86 on its face in contact with the buffer head 60 which comprises, in turn, at least one housing 66 defining a profile identical to the thrust ramp 86, the housing 66 being adapted to receive the thrust ramp 86 in the open position. The housing 66 and the thrust ramp 86 are arranged so that, in the open position, when the locking element 80 is withdrawn from the central body 40, the thrust ramp 86 is blocked by the housing 66 and when pushes the locking element 40 towards the central body 40, the thrust ramp 86 comes out of the housing 66.

Dans le mode de réalisation illustré sur les figures 3A et 3B, la rampe de poussée 86 présente, dans le plan YZ, une section en trapèze rectangle avec sa base longue en bas. La rampe de poussée sort du logement au moyen d'une surface inclinée 862 comportant le côté incliné du trapèze rectangle et d'une surface coopérante 662 du logement 66, lorsque l'élément de verrouillage est poussé vers le corps central 40 par son extrémité droite. Simultanément, le mouvement de translation de la rampe de poussée 86 par rapport à la tête de tampon 60 produit, par un effet de came avec la surface coopérante 662 du logement 66, une translation suivant l'axe Z vers le haut de la tête de tampon dans le corps central 40, provoquant une rehausse relative de la tête de tampon 60 d'une hauteur H dans le corps central 40. La hauteur H correspond à l'épaisseur de la rampe de poussée suivant l'axe Z.In the embodiment illustrated in the figures 3A and 3B , the thrust ramp 86 has, in the YZ plane, a rectangular trapezium section with its long base at the bottom. The push ramp exits the housing by means of an inclined surface 862 comprising the inclined side of the rectangular trapezoid and a cooperating surface 662 of the housing 66, when the locking element is pushed towards the central body 40 by its right end. . Simultaneously, the translational movement of the thrust ramp 86 relative to the buffer head 60 produces, by a cam effect with the cooperating surface 662 of the housing 66, a translation along the Z axis upwards of the buffer head. buffer in the central body 40, causing a relative raising of the buffer head 60 by a height H in the central body 40. The height H corresponds to the thickness of the thrust ramp along the Z axis.

Dans un mode de réalisation, l'assemblage de l'élément de verrouillage et la tête de tampon est serré en position verrouillée de sorte que le déverrouillage de l'élément de verrouillage ne puisse pas être provoqué par simples sollicitations, dues par exemple à la vibration du châssis sur lequel est monté le tampon.In one embodiment, the assembly of the locking element and the stamp head is tightened in the locked position so that the unlocking of the locking element cannot be caused by simple stresses, due for example to the vibration of the frame on which the pad is mounted.

Tel qu'illustré sur les figures 3A et 3B, l'élément de verrouillage 80 comporte un renflement 89 et le corps central 40 comporte un renflement 49. Grâce à l'élasticité du matériau et des pentes de ces renflements 89 et 49, lorsque l'élément de verrouillage 80 passe de position ouverte en position verrouillée, les renflements 89 et 49 franchissent l'un de l'autre et forment une emboîture. Un autre avantage est d'indiquer le passage à la position verrouillée de l'élément de verrou. Cet agencement permet d'éviter le déverrouillage par simples sollicitations, en revanche, le passage de position verrouillée en position ouverte est possible avec un effort de déboîtage prévu.As shown on the figures 3A and 3B , the locking element 80 comprises a bulge 89 and the central body 40 comprises a bulge 49. Thanks to the elasticity of the material and the slopes of these bulges 89 and 49, when the locking element 80 passes from open position to locked position, the bulges 89 and 49 cross one another and form a socket. Another advantage is to indicate the passage to the locked position of the lock element. This arrangement makes it possible to avoid unlocking by simple stresses, on the other hand, the passage from the locked position to the open position is possible with a disengagement effort provided.

En revanche, le logement 66 présente une surface verticale 664 servant de butoir qui permet d'empêcher la rampe de poussée de sortir du logement dans le sens opposé. La face verticale 864 de la rampe vient s'appuyer sur la surface verticale 664, sachant que la tête de tampon 60 elle-même est emboîtée dans le corps central 40. Les figures 3C et 3D illustrent, respectivement, la coopération de la rampe 86 et le logement 66 en détail dans les positions ouverte et verrouillée.On the other hand, the housing 66 has a vertical surface 664 serving as a stopper which makes it possible to prevent the thrust ramp from exiting the housing in the opposite direction. The vertical face 864 of the ramp rests on the vertical surface 664, knowing that the buffer head 60 itself is fitted into the central body 40. 3C and 3D figures illustrate, respectively, the cooperation of ramp 86 and housing 66 in detail in the open and locked positions.

Dans une variante, la section dans le plan YZ de la rampe de poussée 86 est un triangle rectangle. Dans une autre variante, la rampe de poussée comporte un profil qui permet plusieurs rehausses consécutives de la tête de butée.Alternatively, the section in the YZ plane of the thrust ramp 86 is a right triangle. In another variant, the thrust ramp comprises a profile which allows several consecutive extensions of the abutment head.

La figure 4A illustre une vue de dessous de l'ensemble de la tête de tampon 60, l'élément de verrouillage 80 et le corps central 40 du tampon en position ouverte sur la figure 2A ; la figure 4B illustre une vue de dessous du même ensemble du tampon en position verrouillée sur la figure 2B.There figure 4A illustrates a bottom view of the entire tampon head 60, locking member 80, and central body 40 of the tampon in the open position on the figure 2A ; there figure 4B illustrates a bottom view of the same pad assembly in the locked position on the figure 2B .

Dans le mode de réalisation de la figure 4A, la ceinture 48 du corps central 40 comporte un dispositif de blocage, sur une face inférieure, par exemple au moins un renflement 482 formant un cran qui s'engage avec la deuxième crémaillère 32 prévue sur l'embase 20 lorsque le corps central est monté sur cette dernière. Avantageusement, ce dispositif de blocage permet de positionner le corps central 40 sur l'embase 20 lors du mouvement de translation du corps central 40 relatif à cette dernière, comme illustré sur les figures 5 et 5A qui seront détaillées plus loin. Étant donné que le corps central 20 peut être réalisé en matière plastique, la ceinture 48 présente une certaine élasticité. Le renflement 482 n'empêche donc pas ce mouvement de translation relatif. Ceci représente un autre avantage de l'invention qui sera détaillé plus loin, notamment lors du montage du tampon sur un châssis.In the embodiment of the figure 4A , the belt 48 of the central body 40 comprises a locking device, on a lower face, for example at least one bulge 482 forming a notch which engages with the second rack 32 provided on the base 20 when the central body is mounted on the latter. Advantageously, this blocking device makes it possible to position the central body 40 on the base 20 during the translational movement of the central body 40 relative to the latter, as illustrated in the figures 5 and 5A which will be detailed later. Since the central body 20 can be made of plastic material, the belt 48 has a certain elasticity. The bulge 482 therefore does not prevent this relative translation movement. This represents another advantage of the invention which will be detailed later, in particular when mounting the buffer on a frame.

Dans un mode de réalisation, le corps central 40 comporte un élément saillant 484 vers le bas servant de butoir, dans une extrémité de la ceinture 48.In one embodiment, the central body 40 comprises a projecting element 484 downwards serving as a stopper, in one end of the belt 48.

On peut observer sur la figure 4B que ladite au moins une crémaillère 88 de l'élément de verrouillage 20 s'expose aux rainures 426 qui reçoivent lesdites crémaillères 30 de l'embase 20. L'ensemble du corps central, l'embase et l'élément de verrouillage sont agencées de sorte que les crémaillères 30 et 88 coopèrent dans la position verrouillée, en bloquant le corps central 40 dans l'axe X. Plus généralement, ladite au moins une crémaillère de l'élément de verrouillage peut être sous forme de stries ou gorges jointives formant des crans. La figure 5 illustre une vue en coupe du tampon en position ouverte suivant la coupe CC ' sur la figure 3A dans le plan XZ, d'où on peut observer un système de positionnement du corps central sur l'embase 20. Le renflement se présente sous la forme d'une dent 482 s'engrenant avec la crémaillère 30 avec des saillies 32.It can be observed on the figure 4B that said at least one rack 88 of the locking element 20 is exposed to the grooves 426 which receive said racks 30 of the base 20. The assembly of the central body, the base and the locking element are arranged so as to so that the racks 30 and 88 cooperate in the locked position, blocking the central body 40 in the axis X. More generally, said at least one rack of the locking element may be in the form of ridges or contiguous grooves forming notches. There figure 5 illustrates a sectional view of the tampon in the open position following the section CC ' on the Figure 3A in the XZ plane, from which one can observe a system for positioning the central body on the base 20. The bulge is in the form of a tooth 482 meshing with the rack 30 with projections 32.

De façon avantageuse, ce moyen de positionnement 482 et 30 permet de maintenir la position du corps central 40 sur l'embase 20 dans l'axe X sans déplacement non désiré, par exemple, le corps central 40 peut occuper de façon stable une position initiale après que le tampon en position ouverte soit monté sur une structure, et une deuxième position après réglage dans laquelle le tampon est verrouillé en actionnant l'élément de verrouillage 80. De manière avantageuse, ce moyen de positionnement permet d'éviter des mouvements indésirables du corps central 40, par exemple une translation provoquée par la force de gravité ou encore une vibration.Advantageously, this positioning means 482 and 30 makes it possible to maintain the position of the central body 40 on the base 20 in the X axis without unwanted displacement, for example, the central body 40 can stably occupy an initial position after the buffer in the open position is mounted on a structure, and a second position after adjustment in which the buffer is locked by actuating the locking element 80. Advantageously, this positioning means makes it possible to avoid undesirable movements of the central body 40, for example a translation caused by the force of gravity or else a vibration.

Comme illustré sur les figures 5 et 5B, l'élément saillant 484 constituant un premier mécanisme de blocage s'appuie sur la face arrière de l'embase 20, ou sa bande centrale 28 qui comporte, le cas échéant, un évidement 282 apte à recevoir le butoir 484. Dans un mode de réalisation, l'évidement 282 s'étend le long de la crémaillère 30 en formant un étage. Le renflement 482 ne peut donc pas se déplacer au-delà de la position qu'il occupe sur la crémaillère 32 lorsque le butoir 484 vient s'appuyer sur l'embase 20, définissant ainsi une première extrémité du parcours du moyen de positionnement 482.As illustrated on the figures 5 and 5B , the projecting element 484 constituting a first blocking mechanism rests on the rear face of the base 20, or its central strip 28 which comprises, if necessary, a recess 282 capable of receiving the stopper 484. In one mode embodiment, the recess 282 extends along the rack 30 forming a stage. The bulge 482 cannot therefore move beyond the position it occupies on the rack 32 when the stopper 484 comes to rest on the base 20, thus defining a first end of the path of the positioning means 482.

La figure 6A illustre une vue en coupe du tampon suivant la coupe DD ' dans le plan XZ sur la figure 2B . La figure 6B illustre une vue de l'ensemble de l'élément de verrouillage, de la tête de tampon, et du corps central du tampon à butée en position verrouillée sur la figure 2B. L'élément de verrouillage 80 comporte des moyens destinés à retenir la tête de tampon dans l'axe Z. Dans un mode de réalisation, l'élément de verrouillage comporte au moins une rainure 82 s'étendant le long de l'axe Y, le cas échéant, une rainure 82 sur chacune de ses faces avant et arrière. Lorsque l'élément de verrouillage 80 est introduit dans le corps central selon l'invention, la tête de tampon le reçoit par son ouverture 65 avec une section verticale en T, les bords inférieurs 644 étant reçus par au moins une rainure 82. Avantageusement, ces moyens permettent de limiter le déplacement de la tête de tampon dans l'axe Z.There Figure 6A illustrates a cross-sectional view of the buffer along the DD' cut in the XZ plane on the figure 2B . There figure 6B illustrates a view of the assembly of the locking element, the stamp head, and the central body of the stop stamp in the locked position on the figure 2B . The locking element 80 includes means for retaining the stamp head in the Z axis. In one embodiment, the locking element includes at least one groove 82 extending along the Y axis, if necessary, a groove 82 on each of its front and rear faces. When the locking element 80 is introduced into the central body according to the invention, the buffer head receives it through its opening 65 with a vertical T-section, the lower edges 644 being received by at least one groove 82. Advantageously, these means make it possible to limit the movement of the stamp head in the Z axis.

Sur la figure 7A, on observe le tampon à butée selon l'invention, vu du dessous, que l'assemblage du corps central 40 et l'embase 20 est caractérisé également par un emboîtage élastique. La figure 7B illustre un deuxième mécanisme de blocage constitué d'un élément 432 sur une paroi inférieure 43 du corps central et d'un deuxième élément 232 dans une rainure 22 de l'embase, ces deux éléments étant adaptés à former un montage à encliquetage. Cet encliquetage permet de définir une deuxième extrémité du parcours du moyen de positionnement 482 via son rôle de blocage. Avantageusement, le premier 484 et le deuxième 232, 432 mécanismes de blocage délimitent le parcours du corps central 40 sur l'embase 20, rendant ainsi le désassemblage de ces deux composants 20, 40 impossible. En combinaison avec d'autres différents dispositifs décrits plus haut, il est impossible de désassembler le tampon à butée selon l'invention sans que les composants soient détériorés. Avantageusement, un opérateur qui ajuste le tampon à butée en position ouverte ne risque pas d'égarer un élément constituant.On the Figure 7A , we observe the buffer stopper according to the invention, seen from below, that the assembly of the central body 40 and the base 20 is also characterized by an elastic interlocking. There figure 7B illustrates a second locking mechanism consisting of an element 432 on a lower wall 43 of the central body and of a second element 232 in a groove 22 of the base, these two elements being adapted to form a snap-fit assembly. This latching makes it possible to define a second end of the path of the positioning means 482 via its blocking role. Advantageously, the first 484 and the second 232, 432 locking mechanisms delimit the path of the central body 40 on the base 20, thus making it impossible to disassemble these two components 20, 40. In combination with other various devices described above, it is impossible to disassemble the stop buffer according to the invention without the components being damaged. Advantageously, an operator who adjusts the stop buffer in the open position does not run the risk of misplacing a constituent element.

Dans des modes de réalisation, le corps central 40 peut être introduit, lors de l'assemblage, uniquement par la face opposée à celle qui comprend le butoir 484.In some embodiments, the central body 40 can be introduced, during assembly, only by the face opposite to that which comprises the stopper 484.

En référence au mode de réalisation des figures 4B et 1C, la paroi inférieure 43 du corps central 40 et la rainure 24 de l'embase présentent toutes une largeur globalement croissante suivant l'axe Y, respectivement, entre D1 et D2 (D1 < D2), et entre L1 et L2 (L1 < L2). Ces valeurs sont choisies de sorte que le corps central puisse être monté sur l'embase uniquement par la coopération de deux faces définies du corps central dans une autre face de l'embase. Avantageusement, cette disposition permet, par exemple, à un opérateur d'éviter les erreurs d'assemblage.With reference to the embodiment of figure 4B And 1 C , the lower wall 43 of the central body 40 and the groove 24 of the base all have a generally increasing width along the Y axis, respectively, between D1 and D2 (D1 <D2), and between L1 and L2 (L1 <L2 ). These values are chosen so that the central body can be mounted on the base only by the cooperation of two defined faces of the central body in another face of the base. Advantageously, this arrangement allows, for example, an operator to avoid assembly errors.

Le tampon selon l'invention comporte en outre des moyens permettant de maintenir la position de la tête de tampon dans le corps central 40, particulièrement dans l'axe Z, même en position ouverte. On le détaillera par la suite à l'aide des figures 8A et 8B qui illustrent, respectivement, une vue partielle en coupe du tampon en position ouverte suivant la coupe EE ' sur la figure 2A et une vue partielle en coupe du tampon en position verrouillée suivant la coupe FF ' sur la figure 2B, dans le plan YZ. L'élément de verrouillage 80 comprend au moins un élément rigide 85, par exemple une tige. Cet élément de maintien 85 est lié au verrou, par exemple au moyen d'un ressort de torsion, de sorte qu'il s'appuie sur la tête de tampon afin de la maintenir dans l'axe Z, dans la position ouverte comme dans la position verrouillée. Avantageusement, ces moyens permettent de maintenir la position verticale de la tête de tampon notamment en position ouverte. Par exemple, pendant le cheminement et/ou la manutention du tampon selon l'invention, l'absence du déplacement relatif entre des composants permet de limiter leur dégradation.The buffer according to the invention further comprises means making it possible to maintain the position of the buffer head in the central body 40, particularly in the Z axis, even in the open position. This will be detailed later with the help of figures 8A and 8B which illustrate, respectively, a partial sectional view of the buffer in the open position along the section EE 'on the figure 2A and a partial cross-sectional view of the tampon in the locked position according to the cross-section FF' on the figure 2B , in the YZ plane. The locking element 80 comprises at least one rigid element 85, for example a rod. This holding element 85 is linked to the lock, for example by means of a torsion spring, so that it bears on the stamp head in order to hold it in the Z axis, in the open position as in the locked position. Advantageously, these means make it possible to maintain the vertical position of the buffer head, in particular in the open position. For example, during the routing and/or handling of the buffer according to the invention, the absence of relative movement between components makes it possible to limit their degradation.

Dans la suite est décrit le montage du tampon selon l'invention sur une structure fixe, alors que la structure pivotante est optionnellement équipée d'une contrebutée. Le tampon à butée préassemblé peut être monté sur la structure fixe selon les étapes suivantes : (i) On fixe d'abord le tampon à butée auto-ajustable 100 sur le châssis d'une manière connue, par exemple avec des moyens de fixations usuels tels que des vis, des bagues anti-fluage et des rondelles. (ii) On tourne la deuxième structure pour ajuster le corps central 40 dans la première direction X vis-à-vis de l'embase 20 ; - (iii) On réouvre la deuxième structure ; (iv) On rehausse la tête de tampon 60 en enfonçant l'élément de verrouillage 80 dans le corps central 40 jusqu'à ce qu'il se trouve dans la position verrouillée, comme illustré sur les figures 2B et 3B, l'emplacement 81 se trouvant en dehors du corps central 40. (v) On referme la porte, une précontrainte ayant alors été introduite par l'effet de la rehausse de la tête de tampon 60.In the following is described the mounting of the buffer according to the invention on a fixed structure, while the pivoting structure is optionally equipped with a counterstop. The preassembled stop buffer can be mounted on the fixed structure according to the following steps: (i) The self-adjusting stop buffer 100 is first fixed to the frame in a known manner, for example with usual fixing means such as screws, anti-creep rings and washers. (ii) the second structure is rotated to adjust the central body 40 in the first direction X with respect to the base 20; - (iii) We reopen the second structure; (iv) Raise tampon head 60 by pushing locking member 80 into central body 40 until it is in the locked position, as shown in the figures. figure 2B And 3B , the location 81 being outside the central body 40. (v) The door is closed again, a prestress having then been introduced by the effect of the raising of the buffer head 60.

Il est possible remettre le tampon à butée en position ouverte en posant un outil tel qu'un tournevis ou un outil dédié dans l'emplacement 81 et en le tirant vers l'extérieur jusqu'à ce que le tampon retrouve sa position ouverte dans laquelle le tampon est prêt à s'ajuster selon les étapes (ii)(iii)(iv) et (v) susmentionnées.It is possible to return the buffer to the stop in the open position by placing a tool such as a screwdriver or a dedicated tool in the slot 81 and pulling it outwards until the buffer returns to its open position in which the pad is ready to fit according to steps (ii)(iii)(iv) and (v) above.

Le dispositif de tampon à butée selon l'invention permet un montage simple et rapide, et notamment de réduire le temps nécessaire pour effectuer le réglage du tampon. LISTE DES SIGNES DE RÉFÉRENCE Références Désignations 100 tampon à butée auto-ajustable 20 embase 22 rainure 232 élément d'encliquetage 24 rainure 26 profilé de guidage 28 bande centrale 282 évidement 30 crémaillère 32 crémaillère 40 corps central 42 évidement 426 rainure 43 paroi inférieure 432 élément d'encliquetage 44 ouverture 46 ouverture latérale 48 ceinture 49 renflement 482 renflement 484 élément saillant 60 tête de tampon 62 face supérieure 64 évidement 642 rainure 644 bord inférieur 65 ouverture latérale 66 logement 662 surface The buffer device with abutment according to the invention allows simple and rapid assembly, and in particular to reduce the time required to adjust the buffer. <b>LIST OF REFERENCE SIGNS</b> References Designations 100 self-adjusting stop buffer 20 base 22 groove 232 snap-in element 24 groove 26 guide profile 28 central band 282 recess 30 rack 32 rack 40 central body 42 recess 426 groove 43 lower wall 432 snap-in element 44 opening 46 side opening 48 belt 49 bulge 482 bulge 484 protruding element 60 buffer head 62 upper side 64 recess 642 groove 644 lower edge 65 side opening 66 accommodation 662 surface

Claims (17)

  1. A buffer (100) with a self-adjustable stopper comprising a buffer head (60) having an upper surface (62) as a stopper, a base (20) having a guide profile (26), and comprising a central body (40) having a groove cooperating with said profile, the central body (40) being mounted on the base (20) by a translation movement, in a first direction (X) in a plane of movement, the central body (40) at least partially receiving the buffer head (60) by a face opposite to that in contact with the base (20),
    the buffer head (60) is movable relative to the central body (40) in a third direction (Z) perpendicular to the plane of movement, and the buffer further comprises a locking member (80), characterized in that, the locking member (80) is inserted into the central body (40) in a second direction (Y) perpendicular to the first and third directions, and operable in translation for blocking in the third direction (Z) the buffer head (60) in the central body (40) and blocking in the first direction (X) the central body (40) on the base (20).
  2. The buffer (100) with a self-adjustable stopper according to claim 1, characterized in that the locking element (80) and the buffer head (60) comprise, respectively, at least one thrust ramp (86) and at least one housing (66) adapted to receive said at least one ramp, said at least one thrust ramp (86) and said at least one housing (66) being adapted, when the locking member is translationally actuated, to produce a camming effect and to allow raising of the buffer head (60).
  3. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that the locking element has an open position, in the central body (40), in which the at least one thrust ramp (86) is received by the at least one housing (66) and the locking element (80) can be depressed in the second direction and a locked position, in which the buffer head is locked in the third direction.
  4. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that the locking element (80) and the base (20) comprise locking means (30, 88) which cooperate only in the locked position to lock the central body (40) in the first direction.
  5. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that the central body (40) is movable in the first direction, the locking member being in the open position.
  6. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that it comprises means (484) for defining the path of the central body (40) in the first direction, preferably a protruding element (484) serving as a stop.
  7. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that it comprises means (32, 482) for positioning said central body (40) on said base (20), the locking element being in the open position.
  8. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that said means for positioning said central body (40) on said base (20) comprises a rack (32) on the base (20) and a belt (48) having a bulge (482).
  9. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that said guide section (26) is of T-section.
  10. The buffer (100) having a self-adjustable stopper according to one of the preceding claims, characterized in that said locking means comprise at least one rack (30) on said T-guide channel and at least one rack (88) of the locking member (80).
  11. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that it comprises holding means (85) for maintaining the buffer head (60) in position in the third direction in the open position.
  12. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that the holding means is a rod (85) elastically connected to the locking element and resting on the buffer head.
  13. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that the central body (40) and the base (2) are assembled by snap-fitting.
  14. The buffer (100) with a self-adjustable stopper according to one of the preceding claims, characterized in that it comprises means (81) for returning it to the open position.
  15. The buffer (100) with self-adjustable stopper according to one of the preceding claims, characterized in that it is not disassemble.
  16. A method of mounting the buffer according to one of claims 1 to 15 on a first structure to separate it from a second pivoting structure, characterized in that the method comprises the following steps:
    - (i) fixing the self-adjustable stop buffer (100) in the open position, in which the buffer head (60) is adjustable, on the first structure;
    - (ii) rotating the second structure to adjust the central body (40) in the first direction (X) vis-à-vis the base (20);
    - (iii) reopening the second structure;
    - (iv) putting the buffer in the locked position, in which the buffer head (60) is locked, by actuating the locking member (80).
  17. A mounting method according to claim 16, characterized in that the first structure is a moveable body part of a vehicle and in that the second structure is a vehicle frame.
EP20184427.1A 2019-08-29 2020-07-07 Buffer with self-adjusting stop Active EP3786406B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1909494A FR3100265B1 (en) 2019-08-29 2019-08-29 Self-adjusting stopper pad

Publications (2)

Publication Number Publication Date
EP3786406A1 EP3786406A1 (en) 2021-03-03
EP3786406B1 true EP3786406B1 (en) 2023-08-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20184427.1A Active EP3786406B1 (en) 2019-08-29 2020-07-07 Buffer with self-adjusting stop

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US (1) US11629543B2 (en)
EP (1) EP3786406B1 (en)
JP (1) JP2021032413A (en)
FR (1) FR3100265B1 (en)
MA (1) MA54404B1 (en)

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Publication number Publication date
JP2021032413A (en) 2021-03-01
FR3100265A1 (en) 2021-03-05
CN112443228A (en) 2021-03-05
MA54404B1 (en) 2023-11-30
US11629543B2 (en) 2023-04-18
MA54404A (en) 2021-10-13
FR3100265B1 (en) 2021-12-10
US20210131158A1 (en) 2021-05-06
EP3786406A1 (en) 2021-03-03

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