WO2019120756A1 - Damper cup with partially decoupled recessed area - Google Patents

Damper cup with partially decoupled recessed area Download PDF

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Publication number
WO2019120756A1
WO2019120756A1 PCT/EP2018/081021 EP2018081021W WO2019120756A1 WO 2019120756 A1 WO2019120756 A1 WO 2019120756A1 EP 2018081021 W EP2018081021 W EP 2018081021W WO 2019120756 A1 WO2019120756 A1 WO 2019120756A1
Authority
WO
WIPO (PCT)
Prior art keywords
cup
upper face
line
skirt
facets
Prior art date
Application number
PCT/EP2018/081021
Other languages
French (fr)
Inventor
Jerome CAILLARD
Christian Delord
Hervé GAUMONT
Original Assignee
Renault S.A.S
Nissan Motor Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Renault S.A.S, Nissan Motor Co., Ltd. filed Critical Renault S.A.S
Priority to EP18807570.9A priority Critical patent/EP3728002A1/en
Priority to BR112020010278-4A priority patent/BR112020010278A2/en
Priority to RU2020123543A priority patent/RU2778463C2/en
Priority to CN201880078437.3A priority patent/CN111448126A/en
Publication of WO2019120756A1 publication Critical patent/WO2019120756A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/088—Details of structures as upper supports for springs or dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/128—Damper mount on vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/60—Subframe construction

Definitions

  • a motor vehicle wheel suspension damper rod or strut conventionally comprises, arranged in a vertical direction, one or more spring-like spring-return members, and one or more damper-type energy dissipating members. .
  • the strut allows to transfer to the wheels, a portion of the weight carried by the body structure of the motor vehicle.
  • a damper cup For this purpose, an upper portion of the strut rests on a recessed portion of the body structure, portion generally designated by the term "damper cup".
  • a damper cup has a substantially circular geometry, with a cup bottom facing upwards, the cup bottom being pierced with a central orifice, in which orifice is fixed the end of the strut of the tube. 'damper.
  • the cup allows to transfer, to the peripheral edges of the cup themselves assembled to different reinforcements forming part of the body structure, the forces transmitted by the upper end of the strut.
  • the cup may be recessed on a side edge of the vehicle body structure.
  • the cup may be recessed, in addition, towards the front or towards the rear of the vehicle, along horizontal longitudinal reinforcements and / or horizontal reinforcements transverse to the vehicle.
  • the edges descending from the bottom of the cup can be assembled a cup raiser to complete the cup in a three-dimensional structure, to improve the strength of the structure around the central fulcrum of the strut.
  • shock absorber cups there are static stiffness criteria, static resistance, and also criteria related to the dynamic behavior and resistance to periodic deformations such as that deformations sometimes designated by the term "pumping", and that imposes the reciprocating movement of raising and lowering the box relative to the ground.
  • connection points may then weaken these connection points.
  • the object of the invention is to propose a damper cup having good resistance in endurance, and of reduced mass.
  • the cup comprises, in the assembled position in the vehicle, a bearing base, preferably substantially horizontal.
  • the cup may comprise one or more edges, preferably substantially vertical, descending from the support base.
  • a teat forming an upward relief and a hollow downwardly-preferably a substantially central hollow-in the base of the cup, this hollow being designed to cap an upper end of a strut of force.
  • the teat forms a symmetrical bearing zone, symmetrical, about a substantially vertical axis;
  • the pacifier may be pierced with an orifice allowing to assemble preferably by removable means, the top of the leg-force;
  • a fold line of the cup forming a border between the support base and the edge or edges of the cup, the fold line being curved and preferably surrounding the pacifier, away from the pacifier;
  • cup edge forming a substantially cylindrical or conical portion around a vertical axis, advantageously, the cup edge (s) draw downwards, from the upper face of the cup, portions of substantially vertical assembly surfaces of the cup,
  • At least one embedding portion extending along at least a portion of the upper cup face and / or along at least a portion of the cup edge, the embedding portion being provided for , in assembled configuration in a vehicle, to be secured by a connection type of embedding, with at least one reinforcement of a body structure of the vehicle.
  • the embedding portion terminates the upper face of the cup, substantially in a first direction of the vehicle, for example along a longitudinal direction of the vehicle.
  • the embedding portion may advantageously comprise one or more planar portions forming an integral part of the upper face of the cup. Said planar portions may be configured to be assembled in plane-to-plane support, on corresponding planes of a body structure of the vehicle.
  • the cup edge may be adapted to be assembled on a cup raiser, the cup raiser at least partially surrounding the strut, in the downward extension of the cup edge.
  • the upper face of the cup comprises in particular:
  • the conical profile is a conical faceted profile, the facets being connected by breaks in the cone slope, the lines slope-breaking forming substantially straight stiffening ribs, the ribs converging to the nipple-* and a substantially horizontal connecting portion, connecting the skirt and the embedding portion.
  • the upper face of the cup is traversed by an inflection line, the inflection line forming a gutter by rupture of slope between the surface of the skirt and the surface of the connecting portion.
  • the inflection line separates the skirt from the connecting portion, so as to decouple at least partially deformed the skirt and the nipple, with the or the recess portions.
  • the decoupling thus obtained is particularly effective for the deformations of the skirt in pumping mode, these deformations tending to crush the profile of the skirt, even, may tend, in extreme cases to invert the direction of the cone formed by the skirt.
  • the skirt may comprise radial reliefs, reliefs extending radially from the nipple.
  • the radial reliefs may be designed so as to stiffen the skirt in deformation.
  • the radial reliefs may be further designed so as to stiffen the skirt radially.
  • the radial reliefs are designed so as to stiffen the skirt vis-à-vis the tensile-compression stresses exerted on the skirt along the vertical axis, between the teat and the lower cup edge.
  • the radial reliefs may be formed so as to appear either in relief or hollow towards the outside of the cup, relative to the adjacent surfaces defined by the skirt.
  • the radial reliefs can be formed by breaks in slope, the slope breaks allowing to define boundary lines between substantially flat portions of the upper face. These substantially flat portions then draw inclined facets around the pacifier
  • the facets of the upper face of the cup form a faceted zone forming a convex surface whose convexity is turned towards the top of the cup.
  • the faceted zone can comprise between three and six facets, preferably four facets or five facets
  • At least one of the facet boundary lines - or the extension of said at least one boundary line - descends on one side of the skirt which is opposite to the gutter with respect to the teat.
  • the angular amplitude of the facets around the nipple, viewed along a vertical axis, differ in relative value, by at most 30% relative to the amplitude of the facet occupying the smallest angle.
  • the radial reliefs can converge towards a substantially toroidal chimney portion, without radial reliefs.
  • the toric chimney portion may be a portion of the pacifier.
  • the damper system may include a cup as previously described, assembled to a cup raiser extending around the skirt.
  • the invention also relates to a vehicle comprising a damper system with at least one damping cup as described above.
  • the vehicle may comprise a damper equipped with a cup as described above.
  • the cup may be assembled at its lower edge, a cup raiser surrounding at least partially a spring of the damper.
  • the cup may be assembled at its edge to a cup riser portion at least partially surrounding a spring of the damper and located in vertical view of a first side with respect to the inflection line.
  • the embedding portion of the cup may be located, seen in vertical view, a second side opposite to the first side with respect to the inflection line, and be connected to at least one horizontal reinforcement of the body structure of the vehicle.
  • a lateral portion of the cup may be assembled by embedding - for example by welding - at least one horizontal reinforcement of the body structure of the vehicle. This assembly can be achieved by assembling a first portion of substantially horizontal plane of the cup to the reinforcement.
  • the cup may also be recessed on at least a second plane of the body structure of the vehicle, by a second portion of the cup plane, the second plan portion adjacent the first portion of substantially horizontal plane , and being inclined relative to the first plan portion.
  • FIG. 1 is a perspective view of a portion of a body structure comprising a shock absorber cup portion according to the invention
  • FIG. 2 is a sectional view of a shock absorber cup showing the principle of interaction between a cup and a shock absorber strut,
  • FIG. 3a illustrates, in perspective, an example of damper cup geometry according to the invention
  • FIG. 3b shows the view of FIG. 3a, by highlighting several characteristic zones specific to the geometry of a shock absorber cup according to the invention
  • FIG. 4 is a profile view, at a first angle of view, of a shock absorber cup according to the invention before it is assembled in the vehicle,
  • FIG. 5 is a profile view, from another angle of view, of the damper cup of FIG. 4,
  • FIG. 6 is a perspective view of the damper cup illustrated in FIGS. 4 and 5, assembled to a damper cup raising element;
  • FIG. 7 is a cutaway perspective view showing the slope failure zones; walls of the cup at a cup portion supported by a riser,
  • FIG. 8 is a cut-away perspective view showing the zones of slope rupture of the walls of the cup at a portion of a cup situated between a support zone of the strut and a lateral embedding zone of the cup.
  • a shock absorber cup referenced 1 - which in this case is a front shock absorber cup - is assembled to a body structure portion 26.
  • This body structure portion 26 in particular comprises an awning side reinforcement (RCA) 18, forming a transverse reinforcement near a side edge of the vehicle.
  • RCA awning side reinforcement
  • the X axis designates a longitudinal axis oriented in the usual direction of advance of the vehicle, oriented front to back of the vehicle.
  • the Y axis designates a horizontal transverse axis of the vehicle, and the Z axis designates a vertical axis oriented upwards.
  • the cup 1 is assembled by its periphery on a riser cup 17, so as to form, together with the cup 1, with the reinforcement side cowl and with a lateral portion of the body structure of the vehicle, a three-dimensional structure adapted to ensure the transfer of forces of the strut to the body structure of the vehicle.
  • longitudinal reinforcement structures of the vehicle such as longitudinal members 21, and portions of transverse reinforcements - in particular a front cross member 19.
  • FIG. 2 illustrates a conventional configuration of shock absorber cup assembled on one leg.
  • the cup 1, whose cup bottom 2 is oriented upwards (towards the positive Zs), is here assembled on an upper end 104 of a strut 100.
  • the strut 100 comprises in particular a spring element 101 and a damping element 102.
  • the forces coming from a wheel are transmitted partly by the spring 101, partly by the damping element 102, and by means of a filter block 105, on the bottom 2 of the cup 1.
  • Cup edges 3 contribute to an intrinsic rigidity of the cup by giving it a three-dimensional shape. These flanges 3 also make it possible here to keep the filter block 102 centered.
  • Fixing elements 103 make it possible to fix the upper end 104 of the strut on the cup 1, the strut 100 passing through the cup 1 at a central orifice 5 formed in the bottom 2 of the cup.
  • An embossed relief accentuated around the orifice 5 is sometimes designated by the term "teat" 4, visible for example in Figures 3a and 3b.
  • Figure 3a illustrates more particularly a damper cup geometry according to the invention.
  • the cup 1 comprises a bottom 2 turned upwards-that is to say towards the positive "Z" s.
  • the bottom 2 is of substantially conical shape, and is traversed by an orifice 5 for the assembly of a strut (not shown in Figure 3a).
  • the cup bottom 2 forms a teat 4, which is here a substantially toric portion surrounding the orifice 5, and surmounting a conical portion of the cup bottom 2.
  • the central orifice may be surrounded by a geometry other than a toric portion, for example may be surrounded by a cylindrical nipple.
  • the cup 1 comprises a portion of the upper face 7 of the cup, this upper face including the conical bottom 2 surrounding the nipple 4 and / or surrounding the orifice 5.
  • the conical bottom 2 goes down to a fold line 6 of the cup, corresponding to a fold line of the plate forming the cup, the folding line forming a closed curve, or in some embodiments, an open curve, around the point of application of the strut (strut not shown in Figure 3a).
  • the fold line 6 separates the bottom of the cup 2, with the side edges 3 of cup, flanges 3 whose orientation is close to the vertical in the mounted position of the cup in the vehicle.
  • the cup edges 3 may be flared, and therefore do not necessarily form a cylindrical contour. At least a portion of the cup flanges are intended to be assembled to a cup riser 17 as illustrated in FIG.
  • the embedding zone here comprises a first vertical embedding portion 8, and a second oblique embedding portion 9.
  • the vertical term, respectively oblique here designates the direction of normals to the surfaces of the cup used to maintain the embedding connection, for example by welding the surface on a reinforcement.
  • the cup 1 could be considered as a beam embedded at its end welded by the portions 8, 9, the beam working in flexion under the biasing effect directed along the Z axis, and applied for example by the strut at the level of the nipple 4.
  • a zone of greater flexibility is present between the conical portion or otherwise in the form of a shell around the nipple 4, and the or the recess portions 8, 9, stiffened by the embedding even.
  • This zone of greater flexibility can be defined in the vicinity of one, on either side of the decoupling line 20, making it possible to make the deformations imposed around the teat and the deformations of the embedded portion partially independent.
  • the decoupling line 20 here takes the form of a line of rupture of slope, between the slope of the conical portion 7, and the slope of a connecting portion 16 connecting this conical portion, to the embedding portions 8, 9 .
  • the conical portion surrounding the teat 4 can be made more rigid by the presence of radial reliefs on the cone, extending radially from the orifice 5.
  • the conical portion may comprise substantially flat portions, forming facets of the cone, between two successive radial reliefs.
  • the embedding portions 8, 9, the facetted zone conical around the nipple 4 and the decoupling line 20 are better made visible in FIG. 3b, by the fictitious lines and fictitious contours of surfaces.
  • the conical portion surrounding the nipple 4 is thus represented by a series of facets 22, 23, 24, 25, the separations between these facets forming, by local slope changes, radial reliefs 12, 13, 14, 15.
  • the various facets 22, 23, 24, 25, draw angular portions of comparable angular extents, here denoted respectively a, b, g, d, around the orifice 5.
  • the connecting portion 16 extending from one side of the inflection line 20 towards the embedment portions 8 9, and the conical portion located opposite this surface on the other side of the inflection line 20, can form between them an angle of at least 30 °, and can typically go up to 70 ° of angle - angle between surfaces means angle between normal to these surfaces.
  • the upper face of the cup 1 is preferably radiated at the line of inflection 20.
  • the conical portion 2 and the connecting portion 16 are typically encountered at a gutter whose bottom has a radius 20mm to 100mm.
  • the planes 22, 23, 24, 25 of the conical portion may advantageously be inclined with respect to a horizontal plane, for example at an angle of, for example, between 25 ° and 45 ° of angle.
  • a conical skirt portion 11 is drawn by the four facets 22, 23, 24, 25 substantially flat, and separated by meeting areas forming radial relief 12,13,14,15.
  • This form of conical faceted skirt makes it possible to further improve the rigidity of the portion of skirt 11 during pumping-type stresses applied at the level of the teat on the cup compared to a conical geometry of revolution.
  • the radial reliefs 12, 13, 14, 15 are separated by the angular deviations a, b, g, d, measured around the z axis, angular differences whose amplitudes are comparable here.
  • the angular differences here differ by less than 30% from each other (% measured with respect to the smallest deviation), advantageously differing by less than 20%.
  • a connecting portion 16 substantially horizontal, connects the skirt portion 11 and the embedding portions 8, 9.
  • FIG. 4 is a side view of a shock absorber cup according to the invention, seen in a direction corresponding substantially to a direction Y transverse to the vehicle-in the assembled position of the cup in the vehicle; FIG. around the orifice 5 intended to assemble the strut, the succession of slopes along which the surfaces forming the bottom of the cup, the side of the cup opposite the embedding zone comprising the portions 8, 9, follow. .
  • the teat 4 may form, for example, a substantially toric portion, or according to other embodiments, form a conical portion.
  • the angle of the cone can advantageously between 30 ° and 60 ° with respect to the vertical axis of the cone, for example close to 45 °.
  • the portion of the skirt 11 comprises facet portions, whose facets here visible 22, 24, 25.
  • the angles with respect to the vertical Z of the normals to these surfaces are advantageously less than 45 °, for example less than or equal to at 30 °.
  • Figure 5 illustrates the cup of Figure 4, seen this time by the side of the positive x - in the assembled position of the cup in the vehicle-.
  • FIG. 5 shows elements that are common to the preceding figures, the same elements being designated by the same references.
  • the substantially conical skirt portion 1 1 surrounding the orifice 5 is distinguished and forming a portion of three-dimensional structure able to withstand the vertical forces of the strut (strut of force not shown in Figure 5).
  • a connecting portion 16 connects the skirt 11 to the embedding portions 8, 9.
  • the gutter is defined by a slope break, visible rupture on a vertical radial section in a plane parallel to the YZ plane of Figure 5-. This slope break is measurable here by an angle Q-.
  • the angle Q is defined in the plane that section, between the direction of a radial line of the skirt portion 1 1, and a direction of a radial line running through the connecting portion 16.
  • the angle Q may be example between 100 ° and 170 °.
  • FIG. 6 illustrates, in perspective, a damper cup according to the invention, partially assembled to a cup raiser 17, before the cup is assembled, by the embedding portions 8, 9, on the side reinforcement, awning ("RCA") of the vehicle, side awning reinforcement 18 visible for example in Figure 1.
  • RCA side reinforcement, awning
  • FIG. 6 elements we find in Figure 6 elements common to the previous figure, the same elements being designated by the same references.
  • the three-dimensional shell structure of the skirt portion 11 allows a portion of the vertical forces of the strut (not shown in FIG. 6) to be transferred to the cup raiser 17.
  • the skirt portion 11 undergoes drum-type deformations, which deformations make it possible to absorb part of the vertical oscillations occurring between the vehicle and the ground.
  • the inflection line 20 has the effect of limiting the amplitude of the oscillation deformations reflected at the level of the assembly zones, ie at the level of the embedding portions 8 and 9.
  • the inflection line 20 makes it possible to decouple the deformations occurring around the nipple 4 and the orifice 5, with respect to the deformations transmitted via the connecting portion 16 to the embedding portions 8 and 9.
  • the portion of skirt 11 is surrounded, substantially in the same substantially horizontal plane: - on a first portion of its contour, by the fold line 6, which is the place of the rupture of slope between the skirt portion 11 and the edges 3,
  • This configuration makes it possible to keep a local character to the "pumping" deformations applied by the strut at the level of the nipple and the portion of the skirt 11.
  • the resistance of the pumping behavior of the cup is optimized, and the magnitude of the cyclic forces transmitted at the point of attachment of the embedding portions is limited.
  • the teat 4 comprises an O-ring portion 34, itself surmounting a conical portion 35, comprising the facets 22, 23, 24, 25 of the skirt portion 11.
  • FIG. 7 is a local view, in partial perspective sectional view, of a shock absorber cup according to the invention, in section in a radial plane passing through a vertical axis of the orifice 5. It can be seen, for example, that An angle formed between the blank 35 of the nipple, and a facet 24 of the skirt portion, may advantageously be between 140 and 160 ° angle. This angle is represented by the angle f in FIG.
  • Figure 8 illustrates, in section along a radial plane passing through a vertical axis of the orifice 5, a portion of a damper cup according to the invention.
  • the cutting plane is here substantially perpendicular to the lateral edge of the body structure on which is embedded the cup.
  • D 1 has a tangent to the skirt portion 11
  • D 2 has a tangent to the connecting portion 16.
  • the angle of the tangent D1 with a horizontal direction, for example the direction y, and a2 the angle of the tangent D2 with respect to a horizontal direction Y.
  • a1 is advantageously between 20 ° and 40 ° of angle
  • a2 is advantageously between 10 and 30 ° angle.
  • the angle Q is therefore advantageously between 110 and 150 ° angle. It may be noted that, while the embedding portion 8 is substantially horizontal, the connecting portion 16 comprises at least one portion inclined in the vicinity of the inflection line 20, so as to accentuate the effect of breaking the slope of the inflection line
  • skirt portions with more facets than four facets.
  • the angular distributions of the facets and / or radial ribs around the teat are chosen so as to obtain a substantially homogeneous deformation around the teat, and so that this deformation occurs substantially parallel to the vertical force applied.
  • skirt 11 has ribs, or has boundaries between facets, opening for some on the connecting portion l6 and opening for others towards fallen edges of the cup which are intended to be assembled at a portion of enhancement.
  • the cup may comprise a single recess portion, extending in a single plate plane of the cup.
  • the cup may comprise three neighboring embedding portions each oriented in a slightly different plane.
  • the cup may be a front shock cup or a rear shock cup.
  • the cup structure according to the invention makes it possible to optimize the transfer of forces and displacements between a shock absorber strut and a motor vehicle body structure, by limiting the weight of the vehicle and by optimizing the endurance resistance of the vehicle. damper system.
  • the cup device according to the invention makes it possible to optimize the weight-rigidity ratio of the vehicle components.

Abstract

A cup (1) made of stamped sheet metal forming a hollow support for a damper strut (100) comprises: - a nipple (4), - a fold line (6) of the cup, forming a border between a support base (2) of the cup and edges (3) of the cup, - an upper face (7), - at least one edge (3), the edge(s) (3) of the cup forming a substantially cylindrical or conical portion around a vertical axis (Z), - and at least one recessed portion (8, 9). The upper face (7) of the cup comprises in particular: * a skirt portion (11), and * a substantially horizontal connecting portion (16), connecting the skirt portion (11) and the recessed portion (8, 9). The upper face (7) of the cup is crossed by a line of inflection (20), so as to decouple, at least partially, deformation experienced by the skirt portion and the nipple, from the at least one recessed portion (8, 9).

Description

Coupelle d'amortisseur à zone d'encastrement partiellement découplée  Damper cup with partially decoupled recess area
L’invention concerne les dispositifs de fixation de tige d’amortisseur de suspension de roue de véhicule automobile. Une tige ou une jambe de force d’amortisseur de suspension de roue de véhicule automobile comporte, classiquement, disposés selon une direction verticale, un ou plusieurs éléments à retour élastique de type ressort, et un ou plusieurs éléments dissipateurs d’énergie de type amortisseur. La jambe de force permet de transférer vers les roues, une partie du poids porté par la structure de caisse du véhicule automobile.  The invention relates to fastening devices for a motor vehicle wheel suspension damper rod. A motor vehicle wheel suspension damper rod or strut conventionally comprises, arranged in a vertical direction, one or more spring-like spring-return members, and one or more damper-type energy dissipating members. . The strut allows to transfer to the wheels, a portion of the weight carried by the body structure of the motor vehicle.
A cet effet, une partie supérieure de la jambe de force s’appuie sur une portion en creux de la structure de caisse, portion généralement désignée par le terme "coupelle d’amortisseur". Typiquement, une coupelle d’amortisseur présente une géométrie sensiblement circulaire, avec un fond de coupelle orienté vers le haut, le fond de coupelle étant percé d’un orifice central, dans lequel orifice est fixée l’extrémité de la jambe de force de l’amortisseur. For this purpose, an upper portion of the strut rests on a recessed portion of the body structure, portion generally designated by the term "damper cup". Typically, a damper cup has a substantially circular geometry, with a cup bottom facing upwards, the cup bottom being pierced with a central orifice, in which orifice is fixed the end of the strut of the tube. 'damper.
La coupelle permet de transférer, vers des bords périphériques de la coupelle eux- mêmes assemblés à différents renforts faisant partie de la structure de caisse, les efforts transmis par l’extrémité supérieure de la jambe de force. The cup allows to transfer, to the peripheral edges of the cup themselves assembled to different reinforcements forming part of the body structure, the forces transmitted by the upper end of the strut.
La coupelle peut être encastrée sur un bord latéral de la structure de caisse du véhicule. La coupelle peut être encastrée, en outre, vers l’avant ou vers l’arrière du véhicule, le long de renforts horizontaux longitudinaux et/ou de renforts horizontaux transversaux au véhicule. The cup may be recessed on a side edge of the vehicle body structure. The cup may be recessed, in addition, towards the front or towards the rear of the vehicle, along horizontal longitudinal reinforcements and / or horizontal reinforcements transverse to the vehicle.
Les bords descendant à partir du fond de la coupelle, peuvent être assemblés une réhausse de coupelle venant compléter la coupelle en une structure tridimensionnelle, afin d’améliorer la résistance de la structure autour du point d’appui central de la jambe de force. The edges descending from the bottom of the cup, can be assembled a cup raiser to complete the cup in a three-dimensional structure, to improve the strength of the structure around the central fulcrum of the strut.
Parmi les critères intervenant dans les cahiers des charges de conception des coupelles d'amortisseur, on trouve des critères de raideur statique, de résistance statique, et on trouve également des critères liés au comportement dynamique ainsi qu'à la résistance à des déformations périodiques telles que les déformations parfois désigné par le terme de‘pompage’, et qu’impose le mouvement alternatif de montée et de descente de la caisse par rapport au sol. Among the criteria involved in the design specifications of the shock absorber cups, there are static stiffness criteria, static resistance, and also criteria related to the dynamic behavior and resistance to periodic deformations such as that deformations sometimes designated by the term "pumping", and that imposes the reciprocating movement of raising and lowering the box relative to the ground.
On peut ainsi être contraint de rechercher un compromis entre une coupelle rigide car épaisse, et une coupelle plus légère et plus souple, dont les déformations périodiques risquent alors de se propager jusqu’au point d’assemblage de la coupelle sur le reste de la structure de caisse. Les sollicitations cycliques des points de liaison risquent alors de fragiliser ces points de liaison. One can thus be forced to seek a compromise between a rigid cup because thick, and a cup lighter and more flexible, whose periodic deformations may then spread to the point of assembly of the cup on the rest of the structure checkout. The cyclic stresses of the connection points may then weaken these connection points.
L’invention a pour but de proposer une coupelle d’amortisseur présentant une bonne tenue en endurance, et de masse réduite. The object of the invention is to propose a damper cup having good resistance in endurance, and of reduced mass.
A cette fin il est proposé une coupelle en tôle emboutie formant appui creux pour jambe de force d'amortisseur de véhicule automobile. La coupelle comprend, en position assemblée dans le véhicule, un fond d'appui, de préférence sensiblement horizontal. La coupelle peut comprendre un ou plusieurs des bords, de préférence sensiblement verticaux, descendant du fond d'appui. For this purpose it is proposed a plate made of pressed sheet forming a hollow support strut damper motor vehicle. The cup comprises, in the assembled position in the vehicle, a bearing base, preferably substantially horizontal. The cup may comprise one or more edges, preferably substantially vertical, descending from the support base.
La coupelle comprend avantageusement les portions suivantes : The dish advantageously comprises the following portions:
-Une tétine formant un relief vers le haut et un creux vers le bas-de préférence un creux sensiblement central - dans le fond d'appui de la coupelle, ce creux étant conçu pour venir coiffer une extrémité supérieure d'une jambe de force d'amortisseur -de manière préférentielle, la tétine forme une zone d'appui, symétrique, sensiblement à symétrie de révolution, autour d'un axe sensiblement vertical ; Avantageusement, la tétine peut être percée d'un orifice permettant d'y assembler de préférence par des moyens amovibles, le haut de la jambe de force-;  A teat forming an upward relief and a hollow downwardly-preferably a substantially central hollow-in the base of the cup, this hollow being designed to cap an upper end of a strut of force. preferably, the teat forms a symmetrical bearing zone, symmetrical, about a substantially vertical axis; Advantageously, the pacifier may be pierced with an orifice allowing to assemble preferably by removable means, the top of the leg-force;
- une ligne de pliage de la coupelle, formant frontière entre le fond d'appui et le ou les bords de la coupelle, - la ligne de pliage étant courbe et entourant de préférence la tétine, à distance de la tétine- a fold line of the cup, forming a border between the support base and the edge or edges of the cup, the fold line being curved and preferably surrounding the pacifier, away from the pacifier;
-Une face supérieure de coupelle -sur l'extérieur du fond d'appui-, la face supérieure de coupelle s'étendant autour, et à partir, de la tétine, jusqu'à la ligne de pliage de la coupelle, An upper face of the cup on the outside of the support base, the upper face of the cup extending around and from the nipple to the fold line of the cup,
-au moins un bord de coupelle, le ou les bords de coupelle formant une portion sensiblement cylindrique ou conique autour d'un axe vertical, -avantageusement, le ou les bords de coupelle dessinent vers le bas, à partir de la face supérieure de coupelle, des portions de surfaces d'assemblage sensiblement verticales de la coupelle-, at least one cup edge, the cup edge (s) forming a substantially cylindrical or conical portion around a vertical axis, advantageously, the cup edge (s) draw downwards, from the upper face of the cup, portions of substantially vertical assembly surfaces of the cup,
- au moins une portion d'encastrement, s'étendant le long d'au moins une portion de la face supérieure de coupelle et/ou le long d'au moins une portion du bord de coupelle, la portion d'encastrement étant prévue pour, en configuration assemblée dans un véhicule, être solidarisée par une liaison de type encastrement, avec au moins un renfort d'une structure de caisse du véhicule. at least one embedding portion extending along at least a portion of the upper cup face and / or along at least a portion of the cup edge, the embedding portion being provided for , in assembled configuration in a vehicle, to be secured by a connection type of embedding, with at least one reinforcement of a body structure of the vehicle.
Avantageusement, la portion d'encastrement termine la face supérieure de la coupelle, sensiblement suivant une première direction du véhicule, par exemple le long d'une direction longitudinale du véhicule. Advantageously, the embedding portion terminates the upper face of the cup, substantially in a first direction of the vehicle, for example along a longitudinal direction of the vehicle.
La portion d'encastrement peut avantageusement comprendre une ou plusieurs portions planes faisant partie intégrante de la face supérieure de la coupelle. Lesdites portions planes peuvent être configurées pour être assemblées en appui plan sur plan, sur des plans correspondants d'une structure de caisse du véhicule.  The embedding portion may advantageously comprise one or more planar portions forming an integral part of the upper face of the cup. Said planar portions may be configured to be assembled in plane-to-plane support, on corresponding planes of a body structure of the vehicle.
Le bord de coupelle peut être conçu pour être assemblé sur une réhausse de coupelle, la réhausse de coupelle entourant au moins partiellement la jambe de force, dans le prolongement vers le bas du bord de coupelle.  The cup edge may be adapted to be assembled on a cup raiser, the cup raiser at least partially surrounding the strut, in the downward extension of the cup edge.
La face supérieure de coupelle comprend en particulier :  The upper face of the cup comprises in particular:
*une portion de jupe, s'évasant vers le bas tout autour de la tétine suivant un profil sensiblement conique, -avantageusement, le profil conique est un profil conique à facettes, les facettes étant reliées par des ruptures de pente du cône , les lignes de rupture de pente formant des nervures sensiblement rectilignes de rigidification, les nervures convergeant vers la tétine- * et une portion de liaison sensiblement horizontale, reliant la jupe et la portion d'encastrement .  a portion of skirt, flaring down all around the pacifier in a substantially conical profile, advantageously, the conical profile is a conical faceted profile, the facets being connected by breaks in the cone slope, the lines slope-breaking forming substantially straight stiffening ribs, the ribs converging to the nipple-* and a substantially horizontal connecting portion, connecting the skirt and the embedding portion.
De manière avantageuse, la face supérieure de la coupelle est traversée d'une ligne d'inflexion, la ligne d'inflexion formant gouttière par rupture de pente entre la surface de la jupe et la surface de la portion de liaison. La ligne d'inflexion sépare la jupe d'avec la portion de liaison, de manière à découpler au moins partiellement en déformation la jupe et la tétine, d'avec la ou les portions d'encastrement.  Advantageously, the upper face of the cup is traversed by an inflection line, the inflection line forming a gutter by rupture of slope between the surface of the skirt and the surface of the connecting portion. The inflection line separates the skirt from the connecting portion, so as to decouple at least partially deformed the skirt and the nipple, with the or the recess portions.
Le découplage ainsi obtenu est particulièrement effectif pour les déformations de la jupe en mode pompage, ces déformations tendant à écraser le profil de la jupe, voire, pouvant tendre, dans les cas extrêmes à inverser le sens du cône formé par la jupe. The decoupling thus obtained is particularly effective for the deformations of the skirt in pumping mode, these deformations tending to crush the profile of the skirt, even, may tend, in extreme cases to invert the direction of the cone formed by the skirt.
La jupe peut comprendre des reliefs radiaux, reliefs s'étendant radial ement à partir de la tétine. Les reliefs radiaux peuvent être conçus de manière à rigidifier la jupe en déformation. Avantageusement, les reliefs radiaux peuvent être en outre conçus de manière à rigidifier la jupe radial ement.  The skirt may comprise radial reliefs, reliefs extending radially from the nipple. The radial reliefs may be designed so as to stiffen the skirt in deformation. Advantageously, the radial reliefs may be further designed so as to stiffen the skirt radially.
De préférence, les reliefs radiaux sont conçus de manière à rigidifier la jupe vis-à- vis des sollicitations en traction-compression exercées sur la jupe suivant l'axe vertical, entre la tétine et le bord inférieur de coupelle. Les reliefs radiaux peuvent être formés de manière à apparaître soit en relief, soit en creux vers l'extérieur de la coupelle, par rapport aux surfaces voisines définies par la jupe.  Preferably, the radial reliefs are designed so as to stiffen the skirt vis-à-vis the tensile-compression stresses exerted on the skirt along the vertical axis, between the teat and the lower cup edge. The radial reliefs may be formed so as to appear either in relief or hollow towards the outside of the cup, relative to the adjacent surfaces defined by the skirt.
Les reliefs radiaux peuvent être formés par des ruptures de pente, les ruptures de pente permettant de définir des lignes frontières entre des portions sensiblement planes de la face supérieure. Ces portions sensiblement planes dessinent alors des facettes inclinées autour de la tétine  The radial reliefs can be formed by breaks in slope, the slope breaks allowing to define boundary lines between substantially flat portions of the upper face. These substantially flat portions then draw inclined facets around the pacifier
Selon un mode de réalisation, les facettes de la face supérieure de la coupelle dessinent une zone facettée formant une surface convexe dont la convexité est tournée vers le haut de la coupelle. La zone facettée peut comprendre entre trois et six facettes, de préférence quatre facettes ou 5 facettes  According to one embodiment, the facets of the upper face of the cup form a faceted zone forming a convex surface whose convexity is turned towards the top of the cup. The faceted zone can comprise between three and six facets, preferably four facets or five facets
Sur la face supérieure de la coupelle, au moins une des lignes frontière entre facettes -ou le prolongement d'au moins une ligne frontière- croise la gouttière en descendant vers la gouttière.  On the upper face of the cup, at least one of the boundary lines between facets -or the extension of at least one boundary line-crosses the gutter down to the gutter.
De préférence, au moins une des lignes frontière entre facettes -ou le prolongement de ladite au moins une ligne frontière- descend sur un côté de la jupe qui se trouve opposé à la gouttière par rapport à la tétine.  Preferably, at least one of the facet boundary lines - or the extension of said at least one boundary line - descends on one side of the skirt which is opposite to the gutter with respect to the teat.
Avantageusement, l'amplitude angulaire des facettes autour la tétine, vues suivant un axe vertical, diffèrent en valeur relative, d'au maximum de 30% par rapport à l'amplitude de la facette occupant l'angle le plus faible.  Advantageously, the angular amplitude of the facets around the nipple, viewed along a vertical axis, differ in relative value, by at most 30% relative to the amplitude of the facet occupying the smallest angle.
Selon un mode de réalisation, les reliefs radiaux peuvent converger vers une portion de cheminée sensiblement torique, sans reliefs radiaux. La portion de cheminée torique peut être une portion de la tétine.  According to one embodiment, the radial reliefs can converge towards a substantially toroidal chimney portion, without radial reliefs. The toric chimney portion may be a portion of the pacifier.
Le système d'amortisseur peut comprendre une coupelle telle que décrite précédemment, assemblée à une réhausse de coupelle s'étendant autour de la jupe. L'invention concerne également un véhicule comprenant un système d'amortisseur avec au moins une coupelle d'amortisseur telle que décrite précédemment. The damper system may include a cup as previously described, assembled to a cup raiser extending around the skirt. The invention also relates to a vehicle comprising a damper system with at least one damping cup as described above.
Le véhicule peut comprendre un amortisseur équipé d'une coupelle telle que décrite précédemment. La coupelle peut être assemblée au niveau de son bord inférieur, à une réhausse de coupelle entourant au moins partiellement un ressort de l'amortisseur.  The vehicle may comprise a damper equipped with a cup as described above. The cup may be assembled at its lower edge, a cup raiser surrounding at least partially a spring of the damper.
La coupelle peut être assemblée au niveau de son bord à une portion de réhausse de coupelle entourant au moins partiellement un ressort de l'amortisseur et située en vue verticale d'un premier côté par rapport à la ligne d'inflexion. La portion d'encastrement de la coupelle peut être située, vue en vue verticale, d'un deuxième côté opposé au premier côté par rapport à la ligne d'inflexion, et être assemblée à au moins un renfort horizontal de la structure de caisse du véhicule.  The cup may be assembled at its edge to a cup riser portion at least partially surrounding a spring of the damper and located in vertical view of a first side with respect to the inflection line. The embedding portion of the cup may be located, seen in vertical view, a second side opposite to the first side with respect to the inflection line, and be connected to at least one horizontal reinforcement of the body structure of the vehicle.
Une portion latérale de la coupelle peut être assemblée en encastrement -par exemple par soudage- à au moins un renfort horizontal de la structure de caisse du véhicule. Cet assemblage peut être réalisé en assemblant une première portion de plan sensiblement horizontale de la coupelle au renfort. Dans certains modes de réalisation, la coupelle peut être en outre encastrée sur au moins un deuxième plan de la structure de caisse du véhicule, par une deuxième portion de plan de la coupelle, la deuxième portion de plan jouxtant la première portion de plan sensiblement horizontale, et étant inclinée par rapport à la première portion de plan.  A lateral portion of the cup may be assembled by embedding - for example by welding - at least one horizontal reinforcement of the body structure of the vehicle. This assembly can be achieved by assembling a first portion of substantially horizontal plane of the cup to the reinforcement. In some embodiments, the cup may also be recessed on at least a second plane of the body structure of the vehicle, by a second portion of the cup plane, the second plan portion adjacent the first portion of substantially horizontal plane , and being inclined relative to the first plan portion.
L’invention sera mieux comprise à la lecture de la description suivante, donnée à titre d’exemple nullement limitatif, et faite en référence aux figures annexées, sur lesquelles :  The invention will be better understood on reading the following description, given by way of non-limiting example, and with reference to the appended figures, in which:
La figure 1 est une vue en perspective d’une portion de structure de caisse automobile comprenant une portion de coupelle d’amortisseur suivant l’invention, FIG. 1 is a perspective view of a portion of a body structure comprising a shock absorber cup portion according to the invention,
La figure 2 est une vue en coupe d’une coupelle d’amortisseur montrant le principe d’interaction entre une coupelle et une jambe de force d’amortisseur, FIG. 2 is a sectional view of a shock absorber cup showing the principle of interaction between a cup and a shock absorber strut,
La figure 3a illustre, en perspective un exemple de géométrie de coupelle d’amortisseur selon l’invention, La figure 3b reprend la vue de la figure 3a, en mettant en valeur plusieurs zones caractéristiques spécifiques à la géométrie d’une coupelle d’amortisseur selon l’invention, FIG. 3a illustrates, in perspective, an example of damper cup geometry according to the invention, FIG. 3b shows the view of FIG. 3a, by highlighting several characteristic zones specific to the geometry of a shock absorber cup according to the invention,
La figure 4 est une vue de profil, suivant un premier angle de vue, d’une coupelle d’amortisseur selon l’invention avant son assemblage dans le véhicule, FIG. 4 is a profile view, at a first angle of view, of a shock absorber cup according to the invention before it is assembled in the vehicle,
La figure 5 est une vue de profil, selon un autre angle de vue, de la coupelle d’amortisseur de la figure 4, FIG. 5 is a profile view, from another angle of view, of the damper cup of FIG. 4,
La figure 6 est une vue en perspective de la coupelle d’amortisseur illustrée en figures 4 et 5, assemblée à un élément de rehausse de coupelle d’amortisseur, La figure 7 est une vue en perspective coupée, montrant les zones de rupture de pente des parois de la coupelle au niveau d'une portion de coupelle soutenue par une réhausse, FIG. 6 is a perspective view of the damper cup illustrated in FIGS. 4 and 5, assembled to a damper cup raising element; FIG. 7 is a cutaway perspective view showing the slope failure zones; walls of the cup at a cup portion supported by a riser,
La figure 8 est une vue en perspective coupée, montrant les zones de rupture de pente des parois de la coupelle au niveau d'une portion de coupelle située entre une zone d'appui de la jambe de force et une zone d'encastrement latérale de la coupelle. FIG. 8 is a cut-away perspective view showing the zones of slope rupture of the walls of the cup at a portion of a cup situated between a support zone of the strut and a lateral embedding zone of the cup.
Tel qu’illustré sur la figure 1, une coupelle d’amortisseur, référencée 1 - qui est dans ce cas particulier une coupelle d’amortisseur avant -, est assemblée à une portion de structure de caisse 26. Cette portion de structure de caisse 26 comprend notamment un renfort de coté d'auvent (RCA) 18, formant un renfort transversal près d'un bord latéral du véhicule. As illustrated in FIG. 1, a shock absorber cup, referenced 1 - which in this case is a front shock absorber cup - is assembled to a body structure portion 26. This body structure portion 26 in particular comprises an awning side reinforcement (RCA) 18, forming a transverse reinforcement near a side edge of the vehicle.
En terme d'orientation dans l'espace, on repère sur la figure 1, et sur les figures suivantes, les directions de la coupelle telle qu'assemblée, par des axes correspondant aux axes du véhicule . L’axe X désigne un axe longitudinal orienté suivant la direction usuelle d'avancement du véhicule, orienté d’avant en arrière du véhicule. L’axe Y désigne un axe transversal horizontal du véhicule, et l’axe Z désigne un axe vertical orienté vers le haut. In terms of orientation in space, reference is made in FIG. 1, and in the following figures, to the directions of the cup as assembled, by axes corresponding to the axes of the vehicle. The X axis designates a longitudinal axis oriented in the usual direction of advance of the vehicle, oriented front to back of the vehicle. The Y axis designates a horizontal transverse axis of the vehicle, and the Z axis designates a vertical axis oriented upwards.
La coupelle 1 est assemblée par son pourtour sur une réhausse de coupelle 17, de manière à former, ensemble avec la coupelle 1, avec le renfort coté d'auvent et avec une portion latérale de la structure de caisse du véhicule, une structure tridimensionnelle apte à assurer le transfert des efforts de la jambe de force vers la structure de caisse du véhicule. On devine notamment sur la figure 1, des structures de renfort longitudinales du véhicule, telles des longerons 21, et des portions de renforts transversaux - notamment une traverse avant 19- La figure 2 illustre une configuration usuelle de coupelle d’amortisseur assemblée sur une jambe de force 100. La coupelle 1, dont le fond 2 de coupelle est orienté vers le haut (vers les Z positifs), est ici assemblée sur une extrémité supérieure 104 d’une jambe de force 100. La jambe de force 100 comprend notamment un élément ressort 101 et un élément amortisseur 102. Les efforts venant d’une roue (non représentée) sont transmis pour partie par le ressort 101, pour partie par l’élément amortisseur 102, et par l’intermédiaire d’un bloc filtrant 105, sur le fond 2 de la coupelle 1. The cup 1 is assembled by its periphery on a riser cup 17, so as to form, together with the cup 1, with the reinforcement side cowl and with a lateral portion of the body structure of the vehicle, a three-dimensional structure adapted to ensure the transfer of forces of the strut to the body structure of the vehicle. In particular, we can see in FIG. 1, longitudinal reinforcement structures of the vehicle, such as longitudinal members 21, and portions of transverse reinforcements - in particular a front cross member 19. FIG. 2 illustrates a conventional configuration of shock absorber cup assembled on one leg. The cup 1, whose cup bottom 2 is oriented upwards (towards the positive Zs), is here assembled on an upper end 104 of a strut 100. The strut 100 comprises in particular a spring element 101 and a damping element 102. The forces coming from a wheel (not shown) are transmitted partly by the spring 101, partly by the damping element 102, and by means of a filter block 105, on the bottom 2 of the cup 1.
Des rebords 3 de coupelle permettent de contribuer à une rigidité intrinsèque de la coupelle en lui donnant une forme tridimensionnelle. Ces rebords 3 permettent également ici de maintenir centré le bloc filtrant 102. Cup edges 3 contribute to an intrinsic rigidity of the cup by giving it a three-dimensional shape. These flanges 3 also make it possible here to keep the filter block 102 centered.
Des éléments de fixation 103, par exemple de type amovible, permettent de fixer l’extrémité supérieure 104 de la jambe de force sur la coupelle 1, la jambe de force 100 traversant la coupelle 1 au niveau d’un orifice central 5 ménagé dans le fond 2 de la coupelle. Un relief en creux accentué autour de l'orifice 5 est parfois désigné par le terme de "tétine" 4, visible par exemple sur les figures 3a et 3b. Fixing elements 103, for example of removable type, make it possible to fix the upper end 104 of the strut on the cup 1, the strut 100 passing through the cup 1 at a central orifice 5 formed in the bottom 2 of the cup. An embossed relief accentuated around the orifice 5 is sometimes designated by the term "teat" 4, visible for example in Figures 3a and 3b.
La figure 3a illustre plus particulièrement une géométrie de coupelle d’amortisseur selon l’invention. Tel qu’illustré sur la figure 3a, la coupelle 1 comprend un fond 2 tourné vers le haut -c’est-à-dire vers les "Z" positifs-. Le fond 2 est de forme sensiblement conique, et est traversé d’un orifice 5 destiné à l’assemblage d'une jambe de force (non représentée sur la figure 3a). Figure 3a illustrates more particularly a damper cup geometry according to the invention. As illustrated in FIG. 3a, the cup 1 comprises a bottom 2 turned upwards-that is to say towards the positive "Z" s. The bottom 2 is of substantially conical shape, and is traversed by an orifice 5 for the assembly of a strut (not shown in Figure 3a).
Sur le pourtour de l’orifice 5, le fond de coupelle 2 forme une tétine 4, qui est ici une portion sensiblement torique entourant l’orifice 5, et surmontant une portion conique du fond de coupelle 2. Dans des variantes de l'invention, l’orifice central peut être entouré par une autre géométrie qu’une portion torique, par exemple peut être entouré par une tétine cylindrique. Around the periphery of the orifice 5, the cup bottom 2 forms a teat 4, which is here a substantially toric portion surrounding the orifice 5, and surmounting a conical portion of the cup bottom 2. In variants of the invention, the central orifice may be surrounded by a geometry other than a toric portion, for example may be surrounded by a cylindrical nipple.
La coupelle 1 comporte une portion de face supérieure 7 de coupelle, cette face supérieure comprenant notamment le fond conique 2 entourant la tétine 4 et/ou entourant l’orifice 5. Le fond conique 2 descend jusqu'à une ligne de pliage 6 de la coupelle, correspondant à une ligne de pliage de la tôle formant la coupelle , la ligne de pliage formant une courbe fermée, ou dans certains modes de réalisation, une courbe ouverte, autour du point d'application de la jambe de force ( jambe de force non représentée sur la figure 3a). The cup 1 comprises a portion of the upper face 7 of the cup, this upper face including the conical bottom 2 surrounding the nipple 4 and / or surrounding the orifice 5. The conical bottom 2 goes down to a fold line 6 of the cup, corresponding to a fold line of the plate forming the cup, the folding line forming a closed curve, or in some embodiments, an open curve, around the point of application of the strut (strut not shown in Figure 3a).
La ligne de pliage 6 sépare le fond de coupelle 2, d'avec les rebords latéraux 3 de coupelle, rebords 3 dont l’orientation se rapproche de la verticale en position montée de la coupelle dans le véhicule. The fold line 6 separates the bottom of the cup 2, with the side edges 3 of cup, flanges 3 whose orientation is close to the vertical in the mounted position of the cup in the vehicle.
Les rebords 3 de coupelle peuvent être évasés, et ne forment donc pas nécessairement un contour cylindrique. Au moins une portion des rebords de coupelle est destinée à être assemblée à une rehausse de coupelle 17 comme qu’illustré sur la figure 1. The cup edges 3 may be flared, and therefore do not necessarily form a cylindrical contour. At least a portion of the cup flanges are intended to be assembled to a cup riser 17 as illustrated in FIG.
Pour revenir à la figure 3a, sur un côté latéral de la coupelle 1 -ici sur une portion de la coupelle orientée vers les "Y" positifs- la face supérieure 7 de coupelle se prolonge par une ou plusieurs portions d’encastrement, ici 8, 9, les portions d'encastrement formant ensemble une zone d'encastrement de la coupelle. La zone d’encastrement comprend ici une première portion 8 d’encastrement dit vertical, et une deuxième portion 9 d’encastrement dit oblique. Le terme vertical, respectivement oblique, désigne ici la direction des normales aux surfaces de la coupelle servant à maintenir la liaison d’encastrement , par exemple par soudage de la surface sur un renfort. To return to Figure 3a, on a lateral side of the cup 1-here on a portion of the cup facing the "Y" positive- the upper face 7 of the cup is extended by one or more recess portions, here 8 , 9, the recess portions together forming a recess area of the cup. The embedding zone here comprises a first vertical embedding portion 8, and a second oblique embedding portion 9. The vertical term, respectively oblique, here designates the direction of normals to the surfaces of the cup used to maintain the embedding connection, for example by welding the surface on a reinforcement.
Si l’on ne tenait compte que des liaisons d’encastrement appliquées à la coupelle 1 au niveau des portions 8 et 9, on pourrait considérer la coupelle 1, comme une poutre encastrée à son extrémité soudée par les portions 8, 9, la poutre travaillant en flexion sous l’effet de sollicitation dirigée suivant l’axe Z, et appliquées par exemple par la jambe de force au niveau de la tétine 4. Dans la coupelle 1 selon l’invention, une zone de plus grande flexibilité est présente entre la portion conique ou autrement en forme de coque autour de la tétine 4, et la ou les portions d’encastrement 8, 9, rigidifiées par l'encastrement même. If only the embedding connections applied to the cup 1 were taken into account at the portions 8 and 9, the cup 1 could be considered as a beam embedded at its end welded by the portions 8, 9, the beam working in flexion under the biasing effect directed along the Z axis, and applied for example by the strut at the level of the nipple 4. In the cup 1 according to the invention, a zone of greater flexibility is present between the conical portion or otherwise in the form of a shell around the nipple 4, and the or the recess portions 8, 9, stiffened by the embedding even.
Cette zone de plus grande flexibilité peut se définir au voisinage d'une, de part et d'autre de la ligne de découplage 20, permettant de rendre partiellement indépendantes les déformations imposées autour de la tétine et les déformations de la portion encastrée. La ligne de découplage 20 prend ici la forme d'une ligne de rupture de pente, entre la pente de la portion conique 7, et la pente d'une portion de liaison 16 reliant cette portion conique, aux portions d’encastrement 8, 9. This zone of greater flexibility can be defined in the vicinity of one, on either side of the decoupling line 20, making it possible to make the deformations imposed around the teat and the deformations of the embedded portion partially independent. The decoupling line 20 here takes the form of a line of rupture of slope, between the slope of the conical portion 7, and the slope of a connecting portion 16 connecting this conical portion, to the embedding portions 8, 9 .
La portion conique entourant la tétine 4 peut être rendue plus rigide par la présence de reliefs radiaux sur le cône, s'étendant radialement à partir de l'orifice 5. La portion conique peut comporter des portions sensiblement planes, formant facettes du cône, entre deux reliefs radiaux successifs. The conical portion surrounding the teat 4 can be made more rigid by the presence of radial reliefs on the cone, extending radially from the orifice 5. The conical portion may comprise substantially flat portions, forming facets of the cone, between two successive radial reliefs.
Les portions d'encastrement 8, 9, la zone facettée conique autour de la tétine 4 et la ligne de découplage 20 sont mieux rendus visibles sur la figure 3b, par les lignes fictives et des contours fictifs de surfaces. The embedding portions 8, 9, the facetted zone conical around the nipple 4 and the decoupling line 20 are better made visible in FIG. 3b, by the fictitious lines and fictitious contours of surfaces.
La portion conique entourant la tétine 4 est ainsi représentée par une suite de facettes 22, 23, 24, 25, les séparations entre ces facettes formant, de par des changements de pente locaux, des reliefs radiaux 12, 13, 14, 15. De préférence, les différentes facettes 22, 23, 24, 25, dessinent des portions angulaires d'étendues angulaires comparables, ici notées respectivement a, b, g, d, autour de l'orifice 5. The conical portion surrounding the nipple 4 is thus represented by a series of facets 22, 23, 24, 25, the separations between these facets forming, by local slope changes, radial reliefs 12, 13, 14, 15. Preferably, the various facets 22, 23, 24, 25, draw angular portions of comparable angular extents, here denoted respectively a, b, g, d, around the orifice 5.
Pour tenter de quantifier la rupture de pente au croisement de la ligne d'inflexion 20, on considère par exemple que la portion de liaison 16 s’étendant d'un côté de la ligne d'inflexion 20, en direction des portions d’encastrement 8 9, et la portion conique située en regard de cette surface de l’autre coté de la ligne d’inflexion 20, peuvent former entre elles un angle d'au moins 30°, et pouvant typiquement aller jusqu’à 70° d’angle - par angle entre les surfaces on entend angle entre les normales à ces surfaces-. In an attempt to quantify the slope failure at the intersection of the inflection line 20, it is considered for example that the connecting portion 16 extending from one side of the inflection line 20 towards the embedment portions 8 9, and the conical portion located opposite this surface on the other side of the inflection line 20, can form between them an angle of at least 30 °, and can typically go up to 70 ° of angle - angle between surfaces means angle between normal to these surfaces.
Ces différentes variations de pente, et la géométrie des zones de rencontre entre les différentes surfaces caractéristiques de la coupelle peuvent par exemple être observées sur les figures 7 et 8. La face supérieure de la coupelle 1 est de préférence rayonnée au niveau de la ligne d’inflexion 20. La portion conique 2 et la portion de liaison 16 se rencontrent typiquement au niveau d’une gouttière dont le fond a un rayon 20mm à lOOmm. These different slope variations, and the geometry of the meeting areas between the different characteristic surfaces of the cup can for example be observed in FIGS. 7 and 8. The upper face of the cup 1 is preferably radiated at the line of inflection 20. The conical portion 2 and the connecting portion 16 are typically encountered at a gutter whose bottom has a radius 20mm to 100mm.
Les plans 22, 23, 24, 25 de la portion conique peuvent être avantageusement inclinés par rapport à un plan horizontal, par exemple d’un angle compris par exemple entre 25° et 45° d’angle. The planes 22, 23, 24, 25 of the conical portion may advantageously be inclined with respect to a horizontal plane, for example at an angle of, for example, between 25 ° and 45 ° of angle.
Pour revenir à la figure 3b, une portion de jupe conique 11 est dessinée par les quatre facettes 22, 23, 24, 25 sensiblement planes, et séparées par des zones de rencontre formant des reliefs radiaux 12,13,14,15. Cette forme de jupe conique à facettes permet d’améliorer encore la rigidité de la portion de jupe 11 -lors de sollicitations de type pompage appliquée au niveau de la tétine sur la coupelle- par rapport à une géométrie conique de révolution. To return to Figure 3b, a conical skirt portion 11 is drawn by the four facets 22, 23, 24, 25 substantially flat, and separated by meeting areas forming radial relief 12,13,14,15. This form of conical faceted skirt makes it possible to further improve the rigidity of the portion of skirt 11 during pumping-type stresses applied at the level of the teat on the cup compared to a conical geometry of revolution.
Les reliefs radiaux 12, 13, 14, 15 sont séparés par les écarts angulaires a, b, g, d, mesurés autour de l’axe z, écarts angulaires dont les amplitudes sont ici comparables. Les écarts angulaires diffèrent ici de moins de 30% les uns par rapport aux autres (% mesuré par rapport à l'écart le plus faible), avantageusement différant de moins de 20%. The radial reliefs 12, 13, 14, 15 are separated by the angular deviations a, b, g, d, measured around the z axis, angular differences whose amplitudes are comparable here. The angular differences here differ by less than 30% from each other (% measured with respect to the smallest deviation), advantageously differing by less than 20%.
Une portion de liaison 16, sensiblement horizontale, relie la portion de jupe 11 et les portions d’encastrement 8, 9. Une ligne d’inflexion de découplage 20, représentée ici en pointillés épais, trace la trajectoire d'une gouttière dont la concavité est tournée vers le haut, gouttière formée par une rupture de pente entre la portion de jupe 11 et la portion de liaison 16. A connecting portion 16, substantially horizontal, connects the skirt portion 11 and the embedding portions 8, 9. A decoupling inflection line 20, shown here in thick dotted line, traces the trajectory of a gutter whose concavity is turned upwards, gutter formed by a slope break between the portion of skirt 11 and the connecting portion 16.
La figure 4 est une vue de profil d’une coupelle d’amortisseur selon l’invention, vue suivant une direction correspondant sensiblement à une direction Y transversale au véhicule -en position assemblée de la coupelle dans le véhicule- La figure 4 permet de voir, autour de l’orifice 5 destiné à assembler la jambe de force, la succession de pentes suivant laquelle se suivent les surfaces formant le fond de la coupelle, du côté de la coupelle opposé à la zone d'encastrement comprenant les portions 8, 9. FIG. 4 is a side view of a shock absorber cup according to the invention, seen in a direction corresponding substantially to a direction Y transverse to the vehicle-in the assembled position of the cup in the vehicle; FIG. around the orifice 5 intended to assemble the strut, the succession of slopes along which the surfaces forming the bottom of the cup, the side of the cup opposite the embedding zone comprising the portions 8, 9, follow. .
La tétine 4 peut former, par exemple, une portion sensiblement torique, ou encore selon d’autres modes de réalisation, former une portion conique. L’angle du cône peut être avantageusement compris entre 30° et 60° par rapport à l’axe vertical du cône, par exemple proche de 45°. The teat 4 may form, for example, a substantially toric portion, or according to other embodiments, form a conical portion. The angle of the cone can advantageously between 30 ° and 60 ° with respect to the vertical axis of the cone, for example close to 45 °.
La portion de jupe 1 1 comprend des portions formant facettes, dont les facettes ici visibles 22, 24, 25. Les angles -par rapport à la verticale Z- des normales à ces surfaces sont avantageusement inférieures à 45 °, par exemple inférieure ou égale à 30°. The portion of the skirt 11 comprises facet portions, whose facets here visible 22, 24, 25. The angles with respect to the vertical Z of the normals to these surfaces are advantageously less than 45 °, for example less than or equal to at 30 °.
La portion de coupelle 1 ainsi vue par le côté des y négatifs, semble présenter une symétrie sensiblement de révolution autour de l’axe de l’orifice 5. The portion of cup 1 thus seen by the side of the negative y, seems to have a symmetry substantially of revolution about the axis of the orifice 5.
La figure 5 illustre la coupelle de la figure 4, vue cette fois par le côté des x positifs - en position assemblée de la coupelle dans le véhicule-. On retrouve sur la figure 5 des éléments communs aux figures précédentes, les mêmes éléments étant désignés par les mêmes références. Figure 5 illustrates the cup of Figure 4, seen this time by the side of the positive x - in the assembled position of the cup in the vehicle-. FIG. 5 shows elements that are common to the preceding figures, the same elements being designated by the same references.
Sur la figure 5, on distingue sur la gauche de la figure, la portion de jupe 1 1 sensiblement conique entourant l’orifice 5, et formant une portion de structure tridimensionnelle apte à résister aux efforts verticaux de la jambe de force (jambe de force non représentée sur la figure 5). In FIG. 5, on the left of the figure, the substantially conical skirt portion 1 1 surrounding the orifice 5 is distinguished and forming a portion of three-dimensional structure able to withstand the vertical forces of the strut (strut of force not shown in Figure 5).
Sur la droite de la figure 5, on voit les portions d’encastrement 8 et 9 conçues pour être figées en déplacement et en rotation par rapport à une structure de caisse du véhicule. On the right of Figure 5, we see the mounting portions 8 and 9 designed to be fixed in displacement and rotation relative to a body structure of the vehicle.
Une portion de liaison 16 relie la jupe 11 aux portions d’encastrement 8, 9. Une ligne d’inflexion et de découplage 20, formant un creux ou une gouttière, par rupture de pente entre la portion de jupe 1 1 et la portion de liaison 16. La concavité de la gouttière est tournée vers le haut. A connecting portion 16 connects the skirt 11 to the embedding portions 8, 9. An inflection and decoupling line 20, forming a recess or a gutter, by breaking of slope between the skirt portion 1 1 and the portion of 16. The concavity of the gutter is turned upwards.
La gouttière est définie par une rupture de pente, rupture visible sur une coupe radiale verticale dans un plan parallèle au plan YZ de la figure 5-. Cette rupture de pente est mesurable ici par un angle Q- . L’angle Q est défini dans le plan ce coupe, entre la direction d'une ligne radiale de la portion de jupe 1 1 , et une direction d’une ligne radiale parcourant la portion de liaison 16. L’angle Q peut être par exemple compris entre 100° et 170°. The gutter is defined by a slope break, visible rupture on a vertical radial section in a plane parallel to the YZ plane of Figure 5-. This slope break is measurable here by an angle Q-. The angle Q is defined in the plane that section, between the direction of a radial line of the skirt portion 1 1, and a direction of a radial line running through the connecting portion 16. The angle Q may be example between 100 ° and 170 °.
FEUILLE RECTIFIÉE (RÈGLE 91) ISA/EP La figure 6 illustre, en perspective, une coupelle d’amortisseur selon l’invention, partiellement assemblée à une rehausse de coupelle 17, avant l'assemblage de la coupelle, par les portions d'encastrement 8, 9, sur le renfort côté d'auvent ("RCA") du véhicule, renfort côté d'auvent 18 visible par exemple en figure 1. On retrouve sur la figure 6 des éléments communs à la figure précédente, les mêmes éléments étant désignés par les mêmes références. Comme visible sur la figure 6, la structure en coque tridimensionnelle de la portion de jupe 11 permet de reporter une partie des efforts verticaux de la jambe de force (non représentée sur la figure 6) sur la rehausse de coupelle 17. En compression verticale , la portion de jupe 11 subit des déformations de type peau de tambour, déformations qui permettent d'absorber une partie des oscillations verticales survenant entre le véhicule et le sol. La ligne d’inflexion 20 a pour effet de limiter l'amplitude des déformations d'oscillation répercutées au niveau des zones d’assemblage, soit au niveau des portions d’encastrement 8 et 9. La ligne d’inflexion 20 permet de découpler les déformations se produisant autour de la tétine 4 et de l’orifice 5, par rapport aux déformations transmises par l’intermédiaire de la portion de liaison 16 vers les portions d’encastrement 8 et 9. RECTIFIED SHEET (RULE 91) ISA / EP FIG. 6 illustrates, in perspective, a damper cup according to the invention, partially assembled to a cup raiser 17, before the cup is assembled, by the embedding portions 8, 9, on the side reinforcement, awning ("RCA") of the vehicle, side awning reinforcement 18 visible for example in Figure 1. We find in Figure 6 elements common to the previous figure, the same elements being designated by the same references. As can be seen in FIG. 6, the three-dimensional shell structure of the skirt portion 11 allows a portion of the vertical forces of the strut (not shown in FIG. 6) to be transferred to the cup raiser 17. In vertical compression, the skirt portion 11 undergoes drum-type deformations, which deformations make it possible to absorb part of the vertical oscillations occurring between the vehicle and the ground. The inflection line 20 has the effect of limiting the amplitude of the oscillation deformations reflected at the level of the assembly zones, ie at the level of the embedding portions 8 and 9. The inflection line 20 makes it possible to decouple the deformations occurring around the nipple 4 and the orifice 5, with respect to the deformations transmitted via the connecting portion 16 to the embedding portions 8 and 9.
De manière avantageuse, la portion de jupe 11 est entourée, sensiblement dans un même plan sensiblement horizontal : - sur une première portion de son contour, par la ligne de pliage 6, qui est le lieu de la rupture de pente entre la portion de jupe 11 et les bords 3, Advantageously, the portion of skirt 11 is surrounded, substantially in the same substantially horizontal plane: - on a first portion of its contour, by the fold line 6, which is the place of the rupture of slope between the skirt portion 11 and the edges 3,
- sur une autre portion du pourtour de la portion de jupe 11, par la ligne d’inflexion 20 située sensiblement dans le même plan que la ligne de pliage 6. - on another portion of the periphery of the skirt portion 11, by the inflection line 20 located substantially in the same plane as the fold line 6.
Cette configuration permet de garder un caractère local aux déformations "de pompage" appliquées par la jambe de force au niveau de la tétine et de la portion de jupe 1 1. This configuration makes it possible to keep a local character to the "pumping" deformations applied by the strut at the level of the nipple and the portion of the skirt 11.
La structure à facette de la portion de jupe 11, par exemple une structure comprenant trois à six facettes, avantageusement quatre facettes par exemple, permet d’améliorer la rigidité verticale de cette portion de jupe 11 pour une épaisseur de tôle de coupelle donnée. The facet structure of the skirt portion 11, for example a structure comprising three to six facets, advantageously four facets, for example, makes it possible to improve the vertical rigidity of this portion of skirt 11 for a given plate thickness plate.
Grâce à la géométrie proposée selon l'invention, on optimise la résistance du comportement en pompage de la coupelle, et on limite l’ampleur des efforts cycliques transmis au niveau points d’attache des portions d’encastrement. Thanks to the geometry proposed according to the invention, the resistance of the pumping behavior of the cup is optimized, and the magnitude of the cyclic forces transmitted at the point of attachment of the embedding portions is limited.
Sur l’exemple illustré sur la figure 6, la tétine 4 comprend une portion torique 34, surmontant elle-même une portion conique 35 , comprenant les facettes 22, 23, 24, 25 de la portion de jupe 11. In the example illustrated in FIG. 6, the teat 4 comprises an O-ring portion 34, itself surmounting a conical portion 35, comprising the facets 22, 23, 24, 25 of the skirt portion 11.
La figure 7 est une vue locale, en coupe en perspective partielle, d’une coupelle d’amortisseur selon l’invention, en section dans un plan radial passant par un axe vertical de l’orifice 5. On voit par exemple que l’angle formée entre le flan 35 de la tétine, et une facette 24 de la portion de jupe, peut être avantageusement compris entre 140 et 160° d’angle. Cet angle est représenté par l’angle f sur la figure 7. FIG. 7 is a local view, in partial perspective sectional view, of a shock absorber cup according to the invention, in section in a radial plane passing through a vertical axis of the orifice 5. It can be seen, for example, that An angle formed between the blank 35 of the nipple, and a facet 24 of the skirt portion, may advantageously be between 140 and 160 ° angle. This angle is represented by the angle f in FIG.
De manière similaire, la figure 8 illustre, en coupe suivant un plan radial passant par un axe vertical de l’orifice 5, une portion d’une coupelle d’amortisseur selon l’invention. Le plan de coupe est ici sensiblement perpendiculaire au bord latéral de la structure de caisse sur lequel est encastrée la coupelle. Similarly, Figure 8 illustrates, in section along a radial plane passing through a vertical axis of the orifice 5, a portion of a damper cup according to the invention. The cutting plane is here substantially perpendicular to the lateral edge of the body structure on which is embedded the cup.
Dans cette coupe de la figure 8, coupe par un plan sensiblement parallèle à l’axe y-z, on a repéré par D 1 une tangente à la portion de jupe 11 , et par D2 une tangente à la portion de liaison 16. On note al l’angle de la tangente Dl avec une direction horizontale, par exemple la direction y et on note a2 l’angle de la tangente D2 par rapport à une direction horizontale Y. al est avantageusement compris entre 20° et 40° d’angle, a2 est avantageusement compris entre 10 et 30° d’angle. In this section of FIG. 8, intersected by a plane substantially parallel to the yz axis, D 1 has a tangent to the skirt portion 11, and D 2 has a tangent to the connecting portion 16. the angle of the tangent D1 with a horizontal direction, for example the direction y, and a2 the angle of the tangent D2 with respect to a horizontal direction Y. a1 is advantageously between 20 ° and 40 ° of angle, a2 is advantageously between 10 and 30 ° angle.
L’angle Q est donc avantageusement compris entre 110 et 150° d’angle. On peut noter que, alors que la portion d’encastrement 8 est sensiblement horizontale, la portion de liaison 16 comporte au moins une portion inclinée au voisinage de la ligne d’inflexion 20, de manière à accentuer l'effet de rupture de pente de la ligne d’inflexion The angle Q is therefore advantageously between 110 and 150 ° angle. It may be noted that, while the embedding portion 8 is substantially horizontal, the connecting portion 16 comprises at least one portion inclined in the vicinity of the inflection line 20, so as to accentuate the effect of breaking the slope of the inflection line
FEUILLE RECTIFIÉE (RÈGLE 91) ISA/EP L’invention ne se limite pas aux exemples de réalisation décrits, et peut se décliner en de nombreuses variantes. On peut envisager des variantes de réalisation, dans lesquelles la portion de jupe est conique sans présenter de facettes. RECTIFIED SHEET (RULE 91) ISA / EP The invention is not limited to the embodiments described, and can be declined in many variants. It is possible to envisage variant embodiments in which the skirt portion is conical without having facets.
On peut envisager une portion de jupe conique sans facettes, mais néanmoins nervurée radialement. It is possible to envisage a portion of conical skirt without facets, but nevertheless ribbed radially.
On peut envisager des portions de jupe avec davantage de facettes que quatre facettes. It is possible to consider skirt portions with more facets than four facets.
Avantageusement cependant, les répartitions angulaires des facettes et/ou des nervures radiales autour de la tétine sont choisies de manière à obtenir une déformation sensiblement homogène autour de la tétine, et de manière à ce que cette déformation se produise sensiblement parallèlement à l’effort vertical appliqué. Advantageously, however, the angular distributions of the facets and / or radial ribs around the teat are chosen so as to obtain a substantially homogeneous deformation around the teat, and so that this deformation occurs substantially parallel to the vertical force applied.
De manière avantageuse, la même portion de jupe 11 comporte des nervures, ou comporte des frontières entre facettes, débouchant pour certaines sur la portion de liaison l6et débouchant pour d'autres en direction de bords tombés de la coupelle qui sont destinés à être rassemblés à une portion de rehausse. Advantageously, the same portion of skirt 11 has ribs, or has boundaries between facets, opening for some on the connecting portion l6 and opening for others towards fallen edges of the cup which are intended to be assembled at a portion of enhancement.
La coupelle peut comporter une seule portion encastrement, s’étendant dans un seul plan de tôle de la coupelle. The cup may comprise a single recess portion, extending in a single plate plane of the cup.
La coupelle peut comporter trois portions d’encastrement voisines orientées chacune dans un plan légèrement différent. La coupelle peut être une coupelle d’amortisseur avant ou une coupelle d’amortisseur sur arrière. The cup may comprise three neighboring embedding portions each oriented in a slightly different plane. The cup may be a front shock cup or a rear shock cup.
La structure de coupelle selon l’invention permet d’optimiser le transfert des forces et des déplacements enter une jambe de force d'amortisseur et une structure de caisse de véhicule automobile, en limitant le poids du véhicule et en optimisant la tenue en endurance du système d’amortisseur. The cup structure according to the invention makes it possible to optimize the transfer of forces and displacements between a shock absorber strut and a motor vehicle body structure, by limiting the weight of the vehicle and by optimizing the endurance resistance of the vehicle. damper system.
Le dispositif de coupelle selon l'invention permet d'optimiser le rapport poids-rigidité des composants du véhicule. The cup device according to the invention makes it possible to optimize the weight-rigidity ratio of the vehicle components.

Claims

REVENDICATIONS
1. Coupelle (1) en tôle emboutie formant appui creux pour jambe de force (100) d'amortisseur de véhicule automobile, la coupelle (1) comprenant, en position assemblée dans le véhicule, un fond d'appui (2), et un ou plusieurs bords (3) descendant du fond d'appui (2), la coupelle comprenant les portions suivantes : 1. cup (1) made of pressed sheet forming a hollow support for strut (100) of a motor vehicle fender, the cup (1) comprising, in the assembled position in the vehicle, a bottom support (2), and one or more edges (3) descending from the base (2), the cup comprising the following portions:
-Une tétine (4), la tétine formant un relief vers le haut et un creux vers le bas dans le fond d'appui (2) de la coupelle, le creux étant conçu pour venir coiffer une extrémité supérieure d'une jambe de force (100) d'amortisseur,  -A pacifier (4), the pacifier forming an upward relief and a hollow downwardly in the bearing base (2) of the cup, the recess being designed to cap an upper end of a leg of force (100) shock absorber,
- une ligne de pliage (6) de la coupelle, formant frontière entre le fond d'appui (2) et le ou les bords (3), la ligne de pliage (6) entourant la tétine (4),  - a fold line (6) of the cup, forming a border between the support base (2) and the edge or edges (3), the fold line (6) surrounding the nipple (4),
-Une face supérieure (7) de coupelle sur l'extérieur du fond d'appui (2), la face supérieure (7) de coupelle s'étendant autour, et à partir, de la tétine (4), jusqu'à la ligne de pliage (6) de la coupelle (1),  An upper face (7) of the cup on the outside of the support base (2), the upper face (7) of the cup extending around and from the nipple (4) to the folding line (6) of the cup (1),
-au moins un bord (3) de coupelle, le ou les bords (3) de coupelle formant une portion sensiblement cylindrique ou conique autour d'un axe vertical (Z), le bord de coupelle (3) dessinant vers le bas, à partir de la face supérieure (7) de coupelle, un bord descendant de la coupelle (1),  at least one cup edge (3), the cup edge or edges (3) forming a substantially cylindrical or conical portion about a vertical axis (Z), the cup edge (3) drawing downwards, at from the upper face (7) of the cup, a downward edge of the cup (1),
- au moins une portion d'encastrement (8, 9), s'étendant le long d'au moins une portion de la face supérieure (7) de coupelle et/ou le long d'au moins une portion du bord (3) de coupelle, la portion d'encastrement (8,9) étant prévue pour, en configuration assemblée dans un véhicule, être solidarisée par une liaison de type encastrement, avec au moins un renfort (18) d'une structure de caisse du véhicule,  at least one embedding portion (8, 9) extending along at least a portion of the upper face (7) of the cup and / or along at least a portion of the edge (3) of cup, the embedding portion (8,9) being provided for, in assembled configuration in a vehicle, to be secured by a connection type of embedding, with at least one reinforcement (18) of a body structure of the vehicle,
la face supérieure (7) de coupelle comprenant en particulier:  the upper face (7) of the cup comprising in particular:
*une portion de jupe (11), s'évasant vers le bas tout autour de la tétine (4) suivant un profil sensiblement conique,  * a skirt portion (11), flaring down all around the nipple (4) in a substantially conical profile,
* une portion de liaison (16) sensiblement horizontale, reliant la portion de jupe (11) et la portion d'encastrement (8, 9) ,  a substantially horizontal connecting portion (16) connecting the skirt portion (11) and the embedding portion (8, 9),
caractérisée en ce que la face supérieure (7) de la coupelle est traversée d'une ligne d'inflexion (20), la ligne d'inflexion (20) formant gouttière par rupture de pente entre la surface de la portion de jupe (11) et la surface de la portion de liaison (16), la ligne d'inflexion séparant la portion de jupe (1 1 ) d'avec la portion de liaison (16), de manière à découpler au moins partiellement en déformation la portion de jupe et la tétine, d'avec ladite au moins une portion d'encastrement (8,9). characterized in that the upper face (7) of the cup is traversed by an inflection line (20), the inflexion line (20) forming a gutter by rupture of slope between the surface of the skirt portion (11). ) and the surface of the connecting portion (16), the line of inflection separating the portion of skirt (1 1) from the connecting portion (16), so as to decouple at least partially in deformation the skirt portion and the nipple, with said at least a portion of embedding (8,9).
2. Coupelle d'appui (1) suivant la revendication 1 , la portion de jupe (1 1) comprenant des reliefs radiaux (12, 13, 14, 15), s'étendant radialement à partir de la tétine (4), les reliefs radiaux (12, 13, 14, 15) étant conçus de manière à rigidifier la portion de jupe (1 1) en déformation.  2. Support cup (1) according to claim 1, the skirt portion (1 1) comprising radial reliefs (12, 13, 14, 15), extending radially from the nipple (4), the radial reliefs (12, 13, 14, 15) being designed so as to stiffen the portion of skirt (1 1) in deformation.
3. Coupelle d'appui suivant la revendication 2, dans laquelle les reliefs radiaux sont formés par des ruptures de pente permettant de définir des lignes frontières entre des portions sensiblement planes de la face supérieure, ces portions sensiblement planes dessinant des facettes inclinées autour de la tétine.  3. support cup according to claim 2, wherein the radial reliefs are formed by slope breaks for defining boundary lines between substantially planar portions of the upper face, these substantially planar portions forming inclined facets around the nipple.
4. Coupelle d'appui (1) suivant la revendication 3, dans laquelle les facettes (22, 23, 24, 25) de la face supérieure (7) de la coupelle (1) dessinent une zone facettée convexe vers le haut de la coupelle, la zone facettée comprenant entre trois et six facettes (22, 23, 24,25).  4. Support cup (1) according to claim 3, wherein the facets (22, 23, 24, 25) of the upper face (7) of the cup (1) form a faceted convex zone up the cup, the faceted zone comprising between three and six facets (22, 23, 24, 25).
5. Coupelle d'appui ( 1 ) suivant la revendication 4, caractérisée en ce que sur la face supérieure (7) de la coupelle, au moins deux des facettes (23, 24, 25) permettent de définir une ligne frontière virtuelle entre facettes, la ligne frontière descendant sur un côté de la portion de jupe (1 1 ) de manière à s'éloigner de la ligne d'inflexion (20) en s'éloignant de la tétine (4).  5. Support cup (1) according to claim 4, characterized in that on the upper face (7) of the cup, at least two of the facets (23, 24, 25) define a virtual boundary line between facets , the boundary line descending on one side of the skirt portion (1 1) so as to move away from the inflection line (20) away from the teat (4).
6. Coupelle d'appui suivant la revendication 5, caractérisée en ce que sur la face supérieure (7) de la coupelle, au moins deux des facettes permettent de définir une deuxième ligne frontière virtuelle entre facettes, la deuxième ligne frontière ou son prolongement croisant la ligne d'inflexion (20).  6. Support cup according to claim 5, characterized in that on the upper face (7) of the cup, at least two of the facets define a second virtual boundary line between facets, the second boundary line or its crossing extension the inflection line (20).
7. Coupelle selon l'une des revendications 3 à 6, dans laquelle les amplitudes angulaires des facettes (22, 23, 24, 25) autour la tétine, vues suivant un axe vertical, diffèrent deux à deux au maximum de 30% de l'amplitude angulaire de la facette occupant l'angle le plus faible.  7. Cup according to one of claims 3 to 6, wherein the angular amplitudes of the facets (22, 23, 24, 25) around the pacifier, viewed along a vertical axis, differ by two to two at most 30% of the angular amplitude of the facet occupying the lowest angle.
8. Coupelle suivant l'une des revendications 3 à 7, dans laquelle les reliefs radiaux (12, 13, 14, 15) convergent vers une portion de cheminée (4) sensiblement torique.  8. Cup according to one of claims 3 to 7, wherein the radial reliefs (12, 13, 14, 15) converge to a substantially toroidal chimney portion (4).
FEU ILLE RECTI FI ÉE (RÈG LE 91) ISA/ EP FIRE ILLE RECTI FIE (RULE 91) ISA / EP
9. Véhicule comprenant un système d'amortisseur, le système d'amortisseur comprenant au moins une coupelle d'amortisseur (1) avant selon l'une quelconque des revendications précédentes. 9. Vehicle comprising a damper system, the damper system comprising at least one damper cup (1) front according to any one of the preceding claims.
10. Véhicule selon la revendication 9, comprenant une coupelle (1) selon l'une quelconque des revendications 1 à 8, la coupelle étant assemblée au niveau de son bord (3) à une portion de réhausse de coupelle (17) entourant au moins partiellement un ressort (101) de l'amortisseur, la réhausse de coupelle (17) étant située en vue verticale d'un premier côté par rapport à la ligne d'inflexion (20), et la portion d'encastrement de la coupelle (8,9), étant située en vue verticale d'un deuxième côté, opposé au premier côté, par rapport à la ligne d'inflexion (20), la portion d'encastrement (8, 9) étant assemblée à au moins un renfort horizontal de la structure de caisse du véhicule.  A vehicle according to claim 9, comprising a cup (1) according to any one of claims 1 to 8, the cup being assembled at its edge (3) to a portion of cup raiser (17) surrounding at least partially a spring (101) of the damper, the upright cup (17) being located in vertical view of a first side with respect to the inflection line (20), and the recess portion of the cup ( 8,9), being located in vertical view of a second side, opposite the first side, with respect to the inflection line (20), the embedding portion (8, 9) being assembled with at least one reinforcement horizontal of the vehicle body structure.
PCT/EP2018/081021 2017-12-20 2018-11-13 Damper cup with partially decoupled recessed area WO2019120756A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18807570.9A EP3728002A1 (en) 2017-12-20 2018-11-13 Damper cup with partially decoupled recessed area
BR112020010278-4A BR112020010278A2 (en) 2017-12-20 2018-11-13 stamped sheet metal cup forming hollow support for automotive vehicle shock absorber strut, support cup, and, vehicle
RU2020123543A RU2778463C2 (en) 2017-12-20 2018-11-13 Damping cup with partially separated deepened section
CN201880078437.3A CN111448126A (en) 2017-12-20 2018-11-13 Shock absorber cup with partially decoupled recessed areas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1762583 2017-12-20
FR1762583A FR3075105B1 (en) 2017-12-20 2017-12-20 SHOCK ABSORBER CUP WITH PARTIALLY DECOUPLETED FLUSHING ZONE

Publications (1)

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WO2019120756A1 true WO2019120756A1 (en) 2019-06-27

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PCT/EP2018/081021 WO2019120756A1 (en) 2017-12-20 2018-11-13 Damper cup with partially decoupled recessed area

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EP (1) EP3728002A1 (en)
CN (1) CN111448126A (en)
BR (1) BR112020010278A2 (en)
FR (1) FR3075105B1 (en)
WO (1) WO2019120756A1 (en)

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BR112020010278A2 (en) 2020-10-13
FR3075105B1 (en) 2021-01-08
RU2020123543A3 (en) 2022-03-04
CN111448126A (en) 2020-07-24
FR3075105A1 (en) 2019-06-21
EP3728002A1 (en) 2020-10-28
RU2020123543A (en) 2022-01-20

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