WO2020135961A1

WO2020135961A1 - Adapter for motor vehicle windscreen wiper blade

Info

Publication number: WO2020135961A1
Application number: PCT/EP2019/082516
Authority: WO
Inventors: Jean-Michel Jarasson; Gérald CAILLOT; Vincent Izabel
Original assignee: Valeo Systèmes d'Essuyage
Priority date: 2018-12-28
Filing date: 2019-11-26
Publication date: 2020-07-02
Also published as: CN113302096B; EP3902719A1; CN113302096A; FR3091230A1; FR3091230B1

Abstract

The invention concerns an adapter (300) for fastening a windscreen wiper blade (500) on a hinged arm (600) of a wiper system (700), the adapter (300) being mounted to pivot on a connector (200) of the windscreen wiper blade (500). The adapter (300) comprises two side walls (320, 330) connected together by an upper wall (340) and together forming a housing (350) for the connector (200). According to the invention, at least one of the side walls (320, 330) of the adapter (300) comprises one or more grooves (100) which extend longitudinally between the two longitudinal ends (321, 331, 341, 322, 332, 342) of the adapter (300) in order to allow a contact-free insertion of a folded tab forming a tongue (656) on an edge (651, 652) of the yoke (650) of the hinged arm (600). Said invention applies to motor vehicles.

Description

Title: VEHICLE WIPER BLADE ADAPTER

AUTOMOTIVE

Technical area

The present invention lies in the field of wiper blades of a motor vehicle window, and more particularly relates to adapters for fixing wiper blade to an articulated arm of a wiping system. .

State of the art

In the field of motor vehicles, wiping systems make it possible to wipe a glass wall of a motor vehicle. In general, such wiping systems include one or more articulated wiping broom (s) so that they can be moved against the glass wall. Each wiper blade comprises a structure supporting a wiper blade intended to be brought into contact against the glass wall so as to be able to evacuate the water out of the glass wall. In addition, each wiper blade includes a connector fixed integrally to the structure and an adapter pivotally mounted on the connector in order to allow a detachable fixing of the articulated arm of the wiper system to the adapter of the wiper blade. ice.

In known manner, the adapter of the wiper blade is engaged in a yoke of the articulated arm by means of a longitudinal translational movement to a direction of elongation of the yoke. To this end, the yoke includes two folded edges which allow the adapter to be guided longitudinally during assembly and to keep it in the yoke in its functional configuration with the wiping system.

There are many types of adapters for different types of wiper blades and different types of articulated arms. In general, a known adapter comprises (i) two side walls spaced from one another and connected to each other by an upper wall, each side wall comprising a lower bearing face allowing it to be placed support against one of the folded edges of the yoke of the articulated arm, and (ii) a member for coupling the adapter with the yoke.

Document DE îo 2008 011449 A1 is notably known in which, due to a curved shape of the clevis of the articulated arm preventing insertion of the adapter from one of its longitudinal ends, the adapter is first inserted in the screed - at a central area of the screed - in a translational movement towards a concavity of the screed, perpendicular to the direction of elongation of the screed and between two segments distant from each folded edge.

This type of assembly leads to a complex geometry of the adapter: each side wall of the adapter comprises two end parts which are longitudinally distant from one another and separated by a central notch which extends from the upper wall. The central notch is located longitudinally at the axis of rotation of the adapter. This configuration allows you to insert the adapter towards the concavity of the yoke by placing one of the two segments of the folded edges of the yoke at the center notch of the adapter. At the end of this translation towards the concavity of the yoke, the adapter is then engaged longitudinally in the yoke until its functional configuration with the articulated arm. In this functional configuration, each segment of the folded edges of the yoke is engaged with each end portion located opposite the side walls of the adapter: the folded edges of the yoke are not engaged with the adapter at the level of the 'central notch, which can thus lead to instability and / or poor coupling of the adapter in the clevis of the articulated arm.

The object of the present invention is to respond at least in large part to the above problems and also to lead to other advantages by proposing a new adapter for fixing a wiper blade to an articulated arm of the system. 'wiping.

Another object of the invention is to allow easier mounting of such an adapter by a rear longitudinal end of the clevis of the articulated arm. Another object of the invention is to prevent an error in mounting the adapter in the clevis of the articulated arm.

Statement of the invention

According to a first aspect of the invention, at least one of the abovementioned objectives is achieved with an adapter for fixing a wiper blade in a yoke of an articulated arm of a wiping system, l the adapter being configured to be pivotally mounted about an axis of rotation on a connector of the wiper blade, the adapter comprising two side walls which are distant from each other and connected to each other by an upper wall, each side wall of the adapter comprising a lower bearing face on a folded edge of the clevis of the articulated arm. According to the invention, at least one of the side walls of the adapter comprises a groove which extends longitudinally from a first longitudinal end of the adapter and towards a second longitudinal end.

Thus, according to the invention, at least one of the side walls is not completely flat but comprises the groove (s) in order to collaborate with one or more tongues of complementary shape (s) formed (s) on the clevis of the articulated arm with which the adapter according to the first aspect of the invention is intended to collaborate. According to a first variant of the invention in accordance with its first aspect, a single side wall of the adapter comprises a single or several grooves. According to a second variant of the invention in accordance with its first aspect, the two side walls of the adapter comprise a single or several grooves.

The groove (s) formed on the side wall (s) of the adapter according to the first aspect of the invention are more particularly formed on a laterally external face of the side wall (s). More specifically, the outer face is - for a given first side wall of the adapter according to the first aspect of the invention - the face located opposite a second side wall relative to the first side wall of the adapter. The groove or grooves thus form a depression in the direction of the opposite side wall of the adapter. In particular, each groove is formed by peripheral edges which delimit laterally, longitudinally and vertically its shape, along a longitudinal profile of the groove. The invention in accordance with its first aspect is not limited to a particular form of grooves, and several exemplary embodiments will be described below. The groove begins at the first longitudinal end of the adapter: the groove opens at the first longitudinal end of the adapter. In addition, the groove extends longitudinally in the direction of the second longitudinal end of the adapter, without necessarily opening out at said second longitudinal end.

When assembled with the articulated arm, the adapter according to the first aspect of the invention is inserted into the clevis of the articulated arm at a rear longitudinal end and in a configuration such that the tongue formed on the clevis is aligned with the corresponding groove on the adapter. This configuration then allows a longitudinal sliding of the adapter in the clevis, the tongue inserting with play in the groove in order to indicate a direction of assembly of the adapter and to prevent an assembly "upside down".

The invention in accordance with the first aspect of the invention is intended both for the aftermarket and for the aftermarket of wiping systems and / or wiper blades and / or adapters for such wiper blades.

In the context of the invention, the following adjectives are defined relative to the adapter according to the first aspect of the invention:

- the adjective "longitudinal" refers to a direction of elongation of the adapter along its greatest length. When the adapter is mounted on a wiper blade, the longitudinal direction refers to the axis formed by the wiper blade. By extension, the longitudinal direction refers to a direction which is parallel or substantially parallel to the greatest length of the wiping blade; and the adjectives "front" and "rear" refer to a relative position along the longitudinal axis; - the adjective "transverse" or "lateral" refers to a direction of elongation perpendicular to the longitudinal direction, and more particularly a direction perpendicular to the two lateral edges of the cover of the adapter;

- the adjective "vertical" refers to a direction simultaneously perpendicular to the longitudinal direction and to the transverse direction. By way of example, a vertical direction refers in particular to the relative position of the wiping blade relative to the adapter according to the first aspect of the invention. By extension, the adjectives "lower" and "upper" refer to a relative position along the vertical axis.

The adapter according to the first aspect of the invention can advantageously include at least one of the improvements below, the technical characteristics forming these improvements can be taken alone or in combination:

- The adapter according to the first aspect of the invention has a transverse U-shaped profile. In other words, the upper wall laterally separates the two side walls of the adapter. In particular, the side walls are laterally spaced from each other, thus delimiting - with the upper wall - a housing for the connector of the wiper blade;

- In order to facilitate the insertion of the adapter according to the first aspect of the invention in the clevis of the articulated arm with which it is intended to collaborate, the side walls of the adapter are parallel to each other. More particularly still, the side walls are perpendicular to the upper wall of the adapter according to the first aspect of the invention;

- The upper wall and / or at least one of the side walls of the adapter according to the first aspect of the invention is flat. This advantageous configuration makes it easier to insert the adapter according to the first aspect of the invention into the clevis of the articulated arm with which it is intended to collaborate. In particular, an upper face of the upper wall of the adapter is planar in order to facilitate its collaboration with the clevis of the articulated arm, and / or a lower face of the upper wall of the adapter is planar in order to facilitate insertion broom connector wiper in the adapter. Similarly, an outer face of the side walls is advantageously planar - apart from the possible groove formed from it - in order to facilitate their collaboration with the clevis of the articulated arm, and / or an inner face of the side walls is advantageously flat in order to facilitate the insertion of the connector of the wiper blade into the adapter;

- The adapter according to the first aspect of the invention comprises, at at least one of its side walls, a lower bearing face corresponding to a bearing face of the adapter on a folded edge of the yoke of the articulated arm with which the adapter is intended to collaborate, when the adapter is engaged in the clevis of the articulated arm and in a functional configuration of the wiping system. The lower bearing face of the adapter according to the first aspect of the invention is located at a distal end of its side wall (s), relative to its upper wall. In other words, the bottom face (s) of the adapter (s) according to the first aspect of the invention is formed by a bottom face of the corresponding side wall (s), relatively to the vertical axis of the adapter. Advantageously, the distal ends of the side walls of the adapter are coplanar. In other words, the undersides of the side walls are located at the same distance from the top wall of the adapter. This advantageously symmetrical configuration makes it easier to insert the adapter into the clevis of the articulated arm with which it is intended to collaborate, and to reduce the manufacturing costs of the adapter and the corresponding clevis;

- The lower bearing face of the two side walls of the adapter according to the first aspect of the invention extends at least partially to the right of the axis of rotation, in order to improve its coupling with the yoke of the arm articulated with which it is intended to collaborate;

- At a first and a second longitudinal end of the adapter according to the first aspect of the invention, a longitudinal end of the upper wall extends longitudinally at most to a corresponding longitudinal end of the side walls . This advantageous configuration makes it possible both to facilitate the collaboration of the adapter according to the first aspect of the invention with a longitudinal end of the clevis of the articulated arm in which the adapter is intended to be inserted: the upper wall of the adapter does not protrude longitudinally from the side walls of the adapter. This configuration is particularly suitable for the hinges of articulated arms which are closed at their front longitudinal end, requiring insertion of the adapter by a rear longitudinal end;

- The groove of at least one of the side walls of the adapter according to the first aspect of the invention extends longitudinally to the second longitudinal end of the adapter. In this advantageous configuration of the invention, the groove or grooves of the adapter extend longitudinally from the first longitudinal end and up to the second longitudinal end of the adapter according to the first aspect of the invention. In other words, the groove or grooves are passed longitudinally through the adapter;

- The groove of at least one of the side walls extends longitudinally parallel to the upper wall of the adapter according to the first aspect of the invention. In other words, there is at least one peripheral edge of each groove which is parallel to the top wall of the adapter. This advantageous configuration makes it easier to insert the adapter into the clevis of the articulated arm with which it is intended to collaborate;

- In a plane transverse to the adapter according to the first aspect of the invention, the groove of at least one of the side walls can take a plurality of different transverse profiles, defined by the peripheral edges of said groove and which can in particular take the following examples:

o the groove of at least one of the side walls has a transverse "U" profile. In other words, the peripheral edges delimiting the groove along its longitudinal profile comprise a first edge advantageously parallel to the side wall of the adapter and two second peripheral edges surrounding the first peripheral edge at each of its vertical ends. More particularly, in this first embodiment, the second peripheral edges are mutually parallel and perpendicular to the first peripheral edge. The second peripheral edges are advantageously parallel to the upper wall of the adapter according to the first aspect of the invention. Optionally, the second peripheral edges have a tapered shape relative to the first peripheral edge of the groove. In this first embodiment, the groove of at least one of the side walls is situated vertically between the upper wall and the lower bearing face of the side wall on which it is formed; or

the groove of at least one of the side walls has a transverse "L" profile. In other words, the peripheral edges delimiting the groove along its longitudinal profile include a first peripheral edge advantageously parallel to the side wall of the adapter and a single second peripheral edge located at a vertical end of the first edge peripheral. More particularly, in this second embodiment, the second peripheral edge is perpendicular to the first peripheral edge and parallel to the upper wall of the adapter according to the first aspect of the invention. Optionally, the second peripheral edge has a tapered shape relative to the first peripheral edge of the groove. In this first embodiment, the groove of at least one of the side walls opens vertically at the upper wall or at the lower bearing face of the adapter according to the first aspect of the invention; or the groove of at least one of the side walls has a transverse "V" profile. In other words, the peripheral edges delimiting the groove along its longitudinal profile comprise a first peripheral edge and a second peripheral edge, the first peripheral edge and the second peripheral edge sharing a common longitudinal edge and forming between them a non-zero angle, advantageously greater than 30 °. In this third embodiment, the groove of at least one of the side walls is located vertically between the upper wall and the lower bearing face of the side wall on which it is formed; or

the groove of at least one of the side walls has a transverse T-profile. In other words, the peripheral edges delimiting the groove comprise (i) a first peripheral edge and a second peripheral edge vertically distant from one of the other and delimiting between them a first longitudinal elongation groove, and (ii) a third peripheral edge and a fourth peripheral edge situated vertically above and respectively below the first and second peripheral edges in order to form between them a second groove longitudinal elongation. The third and fourth peripheral edges of the at least one groove are located laterally at an inner end of the first and second peripheral edges. The second groove forming the at least one corresponding groove is of vertical dimension greater than the first groove forming said groove. In addition, the second groove is delimited laterally inwards by a fifth peripheral edge of longitudinal elongation. Finally, the third and fourth peripheral edges are connected respectively to the first and second peripheral edges by sixth peripheral edges. The sixth peripheral edges and the fifth peripheral edge are advantageously parallel to each other and parallel to the side wall of the adapter according to the first aspect of the invention. The first, second, third and fourth peripheral edges are advantageously parallel to each other and / or parallel to the upper wall of the adapter according to the first aspect of the invention. The sixth peripheral edges and the fifth peripheral edge are advantageously perpendicular to the first, second, third and fourth peripheral edges;

- the transverse profile of the groove of at least one of the side walls is identical between two longitudinal terminations of said groove. In other words, part of the peripheral edges delimiting the groove of at least one of the side walls - and preferably all the peripheral edges - are planar and invariably extend between the two longitudinal terminations of said groove, so that the shape and / or dimensions of the groove, in a plane transverse to the adapter according to the first aspect of the invention, are identical along the longitudinal axis of said adapter. This advantageous configuration makes it easier to insert the adapter into the clevis of the articulated arm with which it is intended to collaborate;

- The groove of at least one of the side walls comprises at least one groove bottom stop located in the at least one groove and at a distance from the side wall on which the groove is formed, the groove bottom stop (s) being parallel (s) to said side wall on which the groove is formed. This advantageous configuration makes it easier to insert the adapter according to the first aspect of the invention into the clevis of the articulated arm with which it is intended to collaborate, while guaranteeing a constant distance from the groove end stop relative to to the side wall from which the at least one corresponding groove is formed. By way of nonlimiting examples, each at least one groove bottom stop is formed by two adjacent peripheral edges of the groove;

- The adapter according to the first aspect of the invention comprises a first groove formed on the first side wall and a second groove formed on the second side wall. In this embodiment, the adapter according to the first aspect of the invention comprises at least two grooves, each side wall of said adapter comprising at least one groove. The shape and / or dimensions and / or arrangement of the grooves may be identical or different between the two side walls

- In particular, the first groove and the second groove have the same transverse profile. Alternatively, the first groove and the second groove have a different transverse profile;

- comparably, the first groove and the second groove have identical longitudinal lengths. Alternatively, the first groove and the second groove have different longitudinal lengths;

- On a first side wall of the adapter according to the first aspect of the invention, the axis of rotation is formed by a cylindrical housing formed from an inner face of the first side wall of the adapter. The axis of rotation is then defined by a central axis of the cylindrical housing. The cylindrical housing extends from the inside of the first side wall of the adapter according to the first aspect of the invention and towards the outside of the first side wall. Advantageously, the cylindrical housing opens onto the outer face of the first cylindrical wall. In other words, the cylindrical housing is advantageously traversing at the level of the first lateral face of the adapter. This advantageous configuration makes it possible in particular to reduce the manufacturing costs of the adapter;

- The cylindrical housing is located vertically between the upper wall of the adapter according to the first aspect of the invention and the lower bearing face of the first side wall;

- the cylindrical housing is delimited by a peripheral contour. The peripheral contour is advantageously polygonal. In addition, the peripheral contour is advantageously symmetrical with respect to the central axis of the cylindrical housing, in order to facilitate collaboration between the adapter and the connector of the wiper blade on which it is intended to be pivotally mounted. By way of nonlimiting example, the peripheral contour delimiting the cylindrical housing is preferably rectangular or square; - The lower bearing face of the first side wall of the adapter extends at least directly above the cylindrical housing. In other words, the lower bearing face of the first side wall extends longitudinally at least between longitudinal sides longitudinally delimiting the cylindrical housing. In other words still, the lower bearing face of the first lateral wall of the adapter according to the first aspect of the invention extends longitudinally at least between the walls of the cylindrical housing delimited by the peripheral contour;

- on a second side wall of the adapter, the axis of rotation is formed by a cylindrical sleeve which projects from an inner face of the second side wall of the adapter, the cylindrical sleeve being coaxial with the housing cylindrical. Thus, the axis of rotation of the adapter according to the first aspect of the invention is not materialized on said adapter by the same shapes between its two side walls: on the second side wall, the axis of rotation does not is not formed by the cylindrical housing of the first side wall, but by a cylindrical sleeve. This advantageous configuration makes it possible to form a rotation bearing facilitating the stability of the pivoting mounting of the adapter according to the first aspect of the invention on the connector of the wiper blade with which it is intended to collaborate;

- The cylindrical sleeve comprises at least two diametrically opposite flats;

- The cylindrical sleeve comprises a through opening delimited by a circular contour, the through opening being coaxial with the cylindrical sleeve. The through opening laterally and right through the second side wall of the adapter according to the first aspect of the invention and on which the cylindrical sleeve is formed. In addition, the through opening is advantageously aligned longitudinally and / or vertically with the cylindrical housing formed on the first side wall of the adapter. In other words, in a lateral plane of the adapter according to the first aspect of the invention, the opening crossing formed on the second side wall is located inside the cylindrical housing formed on the first side wall;

- The cylindrical sleeve is advantageously formed on the side wall of the adapter which includes the groove;

- the lower bearing face of the second side wall of the adapter extends at least directly above the cylindrical sleeve. In other words, the lower bearing face of the second side wall extends longitudinally at least between the blanks forming the cylindrical sleeve;

- The adapter according to the first aspect of the invention comprises a member for coupling the adapter with the yoke of the articulated arm.

- The coupling member is located at the upper wall of the adapter according to the first aspect of the invention. This advantageous configuration makes it possible to facilitate its collaboration with the clevis of the articulated arm in which the adapter according to the first aspect of the invention is inserted, by making it possible to couple the adapter with an upper face of the clevis;

- The coupling member includes a support button located at one end of a support surface. This advantageous configuration makes it possible to selectively activate or deactivate the coupling member in order to couple or uncouple the adapter and the yoke respectively. To this end, the coupling member is advantageously connected to the upper wall of the adapter by means of a flexible hinge configured to allow elastic deformation of the bearing surface of the coupling member relative to the top wall of the adapter;

- The button of the coupling member is located beyond a longitudinal end of the adapter. In other words, the coupling member - and more particularly its bearing surface - extends longitudinally beyond a longitudinal end of the side walls of the adapter. This advantageous configuration makes it possible to lengthen the bearing surface of the coupling member and - consecutively - to increase a lever arm effect at the level of the support button located at the end of the bearing surface. Alternatively, the button of the coupling member is located longitudinally between the first and second longitudinal ends of the side walls of the adapter, along the longitudinal axis of the adapter and extending from the rear to the front of the adapter;

- The first longitudinal end of the adapter forms a securing means configured to retain the adapter in the yoke of the articulated arm when the coupling member is uncoupled from the yoke. In other words, the adapter securing means is configured to be pressed against a longitudinal end of the clevis of the articulated arm when the coupling member is uncoupled from the clevis, and preferably against a longitudinal end before of the screed. Indeed, the adapter according to the first aspect of the invention intended more particularly to be assembled on the associated wiping system by translation from a rear longitudinal face of the articulated arm, the yoke of such an articulated arm is advantageously closed at the front, that is to say at a longitudinal end opposite to that by which the adapter is introduced into the yoke. For this purpose, at the first and a second longitudinal end of the adapter, the longitudinal end of the upper wall extends longitudinally at most up to the corresponding longitudinal end of the side walls: the upper wall of the adapter according to the invention does not include a tongue which projects in relation to the side walls; and an interaction between the securing means and the clevis of the articulated arm - in the event of a malfunction of the coupling member - then appears at the longitudinal ends of the side walls of the adapter according to the first aspect of the invention. The securing means intervenes during an inadvertent uncoupling of the adapter with the clevis of the articulated arm, the uncoupling resulting from an involuntary separation, a malfunction or a break in the coupling member during operation of the wiping system. Consequently, when the coupling member of the adapter is uncoupled with the clevis of the articulated arm during the operation of the wiping system, then the means of securing the adapter - propelled towards the longitudinal end before the clevis under the effect of the centrifugal force linked to the rotational movement of the wiper blade on the glass surface - comes in stop against the front and closed longitudinal face of the yoke: the adapter is thus retained in the yoke and the wiper blade is not detached from the articulated arm in the event of a malfunction;

- The adapter according to the first aspect of the invention is formed of plastic in order to reduce manufacturing costs. By way of nonlimiting example, the adapter is obtained by molding.

According to a second aspect of the invention, there is provided a wiper blade of a motor vehicle comprising a structure supporting a wiper blade, a connector fixedly attached to the structure, and an adapter according to the first aspect of the invention or according to any one of its improvements, the adapter being pivotally mounted on the connector.

In the context of the invention according to its second aspect and according to a first alternative embodiment, the structure supporting the wiping blade is of the type of a structure comprising a single vertebra. This first embodiment variant is called a mono-vertebra. In such a case, the vertebra is housed in a tunnel of a plastic support on which the connector is attached and which also includes claws for hooking a heel of the wiping blade. It is also possible that the connector is hooked directly to the vertebra and that a heel of the wiper blade is glued against one side of this unique vertebra.

Alternatively, according to a second alternative embodiment, the structure supporting the wiping blade is of the type of a structure comprising two vertebrae distributed laterally on either side of a dorsal of the wiping blade. This second variant is called bi-vertebrae.

The adapter according to the first aspect of the invention is thus coupled to the connector of the wiper blade via its axis of rotation. In other words, the connector comprises a complementary axis of rotation which collaborates with the axis of rotation of the adapter according to the first aspect of the invention, and as described above through any one of its improvements . Subsequently, the adapter is integral with the connector and pivots freely around its axis of rotation so maintain the wiping blade in abutment against the glazed surface of the motor vehicle.

According to a third aspect of the invention, there is provided a wiping system comprising at least one articulated arm detachably attached to the adapter of the wiper blade according to the second aspect of the invention, each articulated arm comprising a yoke mechanically coupled to the adapter by engagement of complementary shapes.

The wiping system according to the third aspect of the invention may advantageously comprise at least one of the improvements below, the technical characteristics forming these improvements can be taken alone or in combination:

- Each articulated arm of the wiping system according to the third aspect of the invention is rotated by an electric motor;

- the yoke of the articulated arm wiping system according to the third aspect of the invention comprises two lateral edges, each lateral edge comprising a folded edge which extends laterally towards the inside of the yoke, the lower bearing face of the adapter being pressed against the folded edge located opposite. The folded edge of each side edge of the yoke is located at a free end of the side edge. The two lateral edges of the yoke form between them a concave volume inside which the adapter can be inserted by translation in a longitudinal direction of extension of the yoke. The folded edges of the yoke against which the adapter according to the first aspect of the invention is supported thus make it possible to guide the adapter during its longitudinal insertion in the yoke of the articulated arm. In addition, when the adapter has reached its functional configuration with the articulated arm, the folded edges of the yoke help to keep the adapter in position in the yoke of the articulated arm;

- the side walls of the adapter bear against the side edges of the clevis of the articulated arm. In particular, the lateral walls of the adapter according to the first aspect of the invention are in lateral abutment against the lateral edges of the yoke of the articulated arm during the insertion of the adapter in the fork and / or in the functional configuration of the adapter in the fork;

- the clevis of the articulated arm comprises a closing edge which extends laterally between the two lateral edges at a longitudinal end of the clevis. In other words, the yoke of the articulated arm of the wiping system according to the third aspect of the invention is more particularly of the type of a yoke open on the rear and which allows the insertion of the adapter into the clevis only by its rear longitudinal end. In addition, the closure edge of the yoke allows, in collaboration with the adapter securing means according to the first aspect of the invention, to retain the adapter when the coupling member of the adapter with the yoke disengages from the yoke during operation of the wiping system: the securing means is then placed in longitudinal abutment against the closing edge of the yoke, thus preventing the wiper blade from being propelled out of the articulated arm ;

- the yoke comprises an upper edge connecting the two lateral edges, the upper edge comprising an opening configured to allow the engagement of the coupling member when the adapter is coupled to the articulated arm. Preferably, the opening formed in the upper edge of the clevis of the articulated arm is configured to allow the engagement of the button of the coupling member when the adapter is coupled to the articulated arm;

- the clevis of the articulated arm comprises two lateral edges connected together by the upper edge, the upper edge and / or at least one of the lateral edges comprising a tongue which extends towards the inside of the clevis, the tongue being configured for insert with play in the at least one corresponding groove of the adapter;

- The tongue (s) of the lateral and / or upper edge (s) of the yoke is located at an open longitudinal end of the yoke. In other words, the tab or tabs are located at the rear longitudinal end of the clevis of the articulated arm; - Each at least one tongue has a shape and / or a dimension complementary to that of the at least one groove located opposite the adapter and with which said at least one tongue collaborates. In other words, each tongue has a geometry which results from a homothetic transformation of the geometry of the corresponding groove of the adapter, taken in a transverse plane, said homothetic transformation being of the type of a contraction. By way of nonlimiting examples, the at least one tongue has a rectangular shape when it collaborates with a “U” or “L” shaped groove, or a triangular shape when it collaborates with a shaped groove of "V", or a "T" shape when it collaborates with a groove having a "T" shape

- In a particularly advantageous manner, the tongue of the yoke extends towards the inside of said yoke from the lateral edge of said yoke located opposite the yoke relative to an arm of the articulated arm.

Various embodiments of the invention are provided, integrating, according to all the possible combinations, the different optional characteristics set out here.

Description of the figures

Other characteristics and advantages of the invention will appear further from the following description on the one hand, and from several exemplary embodiments given by way of non-limiting indication with reference to the appended schematic drawings on the other hand, in which :

- FIGURES 1 illustrate several exemplary embodiments of an adapter according to the first aspect of the invention. In particular, [FIGURE îA] and [FIGURE îB] illustrate side views from each of the side faces of a first embodiment of such an adapter, [FIGURE îC] and [FIGURE îD] respectively illustrate top and bottom views of the first exemplary embodiment of the adapter, the [FIGURE îE] illustrates a perspective view of the first exemplary embodiment of the adapter, and the [FIGURE îF], the [FIGURE îG] and [FIGURE îH] respectively illustrate front views of the first embodiment, of a second and a third embodiment of the adapter according to the first aspect of the invention;

- FIGURES 2 illustrate an embodiment of a wiper blade according to the second aspect of the invention and incorporating an adapter according to the first aspect of the invention. In particular, [FIGURE 2A] illustrates a perspective view and [FIGURE 2B] illustrates a cross-sectional view of such a wiper blade;

- FIGURES 3 illustrate three exemplary embodiments of a wiping system according to the third aspect of the invention and in which a wiper blade of the type illustrated in FIGURES 2 is assembled on an articulated arm. In particular, [FIGURE 3A] illustrates a perspective view of such a wiping system, [FIGURE 3B] illustrates a cross-sectional view of a wiping system collaborating with the first embodiment of an adapter as illustrated in FIGURE tF, [FIGURE 3C] illustrates a cross-sectional view of a wiping system collaborating with the second embodiment of an adapter as illustrated in FIGURE tG, [FIGURE 3D ] illustrates a cross-sectional view of a wiping system collaborating with the third embodiment of an adapter as illustrated in FIGURE 1H.

Of course, the characteristics, the variants and the various embodiments of the invention can be associated with one another, according to various combinations, insofar as they are not incompatible or mutually exclusive of each other. One can in particular imagine variants of the invention comprising only a selection of characteristics described below in isolation from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from in the prior art.

In particular, all the variants and all the embodiments described can be combined with one another if nothing is technically opposed to this combination. In the figures, the elements common to several figures keep the same reference.

Detailed description of the invention

In the following description of the figures, the "longitudinal" objective refers to the X axis and corresponds to a direction of elongation of the adapter along its greatest length. Consequently, the adjectives "front" and "rear" refer respectively to the left and right sides of the perspective figures represented. The adjective "transverse" or "lateral" refers to the Y axis and corresponds to an elongation direction perpendicular to the longitudinal direction, and the adjective "vertical" refers to the Z axis and corresponds to a direction simultaneously perpendicular to the longitudinal direction and the transverse direction. The adjectives "lower" and "upper" refer respectively to the lower and upper edges of the figures shown.

With reference to FIGURES tA to HI, an adapter 300 according to the first aspect of the invention is first described. Such an adapter 300 comprises two side walls 320, 330 distant from each other and connected to each other by an upper wall 340, so that, in a transverse plane formed by the transverse axis Y and by the vertical axis Z, the adapter 300 has a profile in the general shape of "U", as more particularly visible in FIGURES îF, tG and îH.

In the various embodiments illustrated in FIGURES 1, the side walls 320, 330 are mutually parallel and perpendicular to the top wall 340 of the adapter 300. Optionally, the side walls 320, 330 can form an angle greater than 90 ° with the upper wall 340 as a function of the shape of the yoke 650 with which the adapter 300 is intended to collaborate.

At their upper vertical end, each side wall 320, 330 of the adapter 300 comprises a chamfer 327, 337 in order to facilitate its insertion into the yoke 650 of the articulated arm 600 and into which the adapter 300 is intended to be inserted. . In other words, in a transverse plane illustrated in FIGURES tF, tG and 1H in particular, the wall upper 340 of the adapter 300 comprises, at each of its lateral ends, a chamfer 327, 337. The chamfer is advantageously oriented at 45 ⁰ relative to the upper wall 340 of the adapter 300. In addition, the chamfer 327, 337 of each of the side walls 320, 330 of the adapter 300 extends longitudinally between two longitudinal ends 321, 331, 322, 332 of the side walls.

Laterally, the first side wall 320 of the adapter 300 is delimited by an outer face 324 and by an inner face 325. The inner face 325 of the first side wall 320 is located opposite the second side wall 330 of the adapter 300. In the example illustrated in FIGURES 1, the inner face 325 and the outer face 324 of the first side wall 320 are advantageously plane and parallel to one another.

Longitudinally, the first side wall 320 of the adapter 300 is delimited by a first longitudinal end 321 situated at the front of the adapter 300 and by a second longitudinal end 322 situated at the rear of the adapter 300, relatively to the longitudinal axis X. The first 321 and the second 322 longitudinal end of the first side wall 320 are advantageously plane and parallel to one another. The first side wall 320 also comprises a vertical chamfer which delimits the external face 324 of each of its longitudinal ends 321, 322.

Vertically, the first side wall 320 of the adapter 300 is delimited, on the one hand, by the upper wall 340 of the adapter 300 and, on the other hand, by a lower planar face forming a lower bearing face 323 , 333 of the adapter 300 and intended to collaborate with a folded edge 655 of the yoke 650 of the articulated arm 600 with which the adapter 300 is intended to collaborate.

Thus, the first side wall 320 of the adapter 300 has a generally parallelepiped shape which extends vertically below the upper wall 340 of the adapter 300, relative to the vertical axis Z.

As more particularly visible in FIGURES tC, tD and îE, the first side wall 320 also includes two oblong openings 326a, 326b which extend longitudinally in the first side wall 320. oblong openings 326a, 326b of the first side wall 320 pass through along the vertical axis Z: they open simultaneously at the top wall 340 and at the bottom bearing face 323 of the first side wall 320. Laterally, the oblong openings 326a, 326b are located between the outer face 324 and the inner face 325 of the first side wall 320, preferably centered relative to the transverse axis Y of the adapter 300.

Similarly, the second side wall 330 of the adapter 300 is delimited laterally by an outer face 334 and by an inner face 335. The inner face 335 of the second side wall 330 is located opposite the first side wall 320 of the adapter 300. In the example illustrated in FIGURES 1, the inner face 335 and the outer face 334 of the second side wall 330 are advantageously plane and parallel to one another.

Longitudinally, the second side wall 330 of the adapter 300 is delimited by a first longitudinal end 331 situated at the front of the adapter 300 and by a second longitudinal end 332 situated at the rear of the adapter 300, relatively to the longitudinal axis X. The first 331 and the second longitudinal end 332 of the second side wall 330 are advantageously plane and parallel to one another. The second side wall 330 also comprises a vertical chamfer which delimits the external face 334 of each of its longitudinal ends 331, 332.

Advantageously, and as shown in FIGURES tC and tD in particular, the first 321 and the second 322 longitudinal end of the first side wall 330 on the one hand, and the first 331 and the second 332 longitudinal end of the second side wall 330 on the other hand are parallel to each other. Also preferably, the first 321 longitudinal end of the first side wall 330 and the first 331 longitudinal end of the second side wall 330 are coplanar; and the second longitudinal end 322 of the first side wall 330 and the second longitudinal end 332 of the second side wall 330 are coplanar. Vertically, the second side wall 330 of the adapter 300 is delimited, on the one hand, by the upper wall 340 of the adapter 300 and, on the other hand, by a flat lower face forming the lower bearing face 323 , 333 of the adapter 300 and intended to collaborate with a folded edge 655 of the yoke 650 of the articulated arm 600 with which the adapter 300 is intended to collaborate. As shown in FIGURES 1F, 1G and 1H, the lower planar surfaces of each side wall 320, 330 of the adapter 300 together form a single lower support face 323, 333 planar. In other words, the lower planar surfaces of each side wall 320, 330 of the adapter 300 are advantageously coplanar.

Thus, the second side wall 330 of the adapter 300 has a generally parallelepiped shape which extends vertically below the upper wall 340 of the adapter 300, relative to the vertical axis Z.

As more particularly visible in FIGS. 1C, 1D and 1E, the second side wall 330 also includes three oblong openings 336a, 336b and 336c which extend longitudinally in the second side wall 330. The oblong openings 336a, 336b and 336c of the second side wall 330 pass through along the vertical axis Z: they open simultaneously at the level of the upper wall 340 and at the level of the lower bearing face 333 of the second side wall 330. Laterally, the oblong openings 336a, 336b and 336c of the second side wall 330 are located between the outer face 334 and the inner face 335 of the second side wall 330, preferably centered relative to the transverse axis Y of the adapter 300.

As shown in FIGURES 1D, 1E and 1F to 1H, the side walls 320, 330 and the upper wall 340 of the adapter 300 together define a housing 350 allowing the insertion of a connector 200 of wiper blade 500 when the adapter 300 is pivotally mounted on said adapter 200. Thus, the housing 350 opens at the first longitudinal end 321, 331 of the side walls 320, 330 of the adapter 300 - preferably located at the front of the 'adapter 300. In the various embodiments illustrated in FIGURES t, the housing 350 of the adapter 300 also opens at the second longitudinal end 322, 332 of the side walls 320, 330 of the adapter 300 - preferably located at the rear of the adapter 300. In other words, the housing 350 passes longitudinally through the adapter 300 right through along its longitudinal axis X.

Relative to the lateral axis Y of the adapter 300, the housing 350 is delimited by the internal faces 325, 335 of the side walls 320, 330 of the adapter 300.

Relative to the vertical axis Z of the adapter 300, the housing 350 is delimited on an upper side by a lower face of the upper wall 340 of the adapter 300; and in a vertical direction opposite to the upper wall 340, the housing 350 is not delimited: it opens at the level of the lower bearing face 323, 333 of the adapter 300.

Subsequently, in a transverse plane formed by the transverse axis Y and by the vertical axis Z, the housing 350 has a generally rectangular shape between the side walls 320, 330 and upper 340 of the adapter 300, as visible in FIGURE especially.

As shown in FIGURES tC, tD and tE, the upper wall 340 of the adapter 300 comprises, at the first longitudinal end 321, 331 of the side walls 320, 330, a through opening 370. The through opening 370 is formed from an upper face of the upper wall 340 of the adapter 300 and up to the lower face of said upper wall 340, in the direction of the lower bearing face 323, 333 of the adapter 300 against a folded edge 655 of the yoke 650 of the articulated arm 600 with which the adapter 300 is intended to collaborate. The through opening 370 thus takes the form of a notch through the upper wall 340.

Relative to the longitudinal axis X of the adapter 300, the through opening 370 of the upper wall 340 opens longitudinally at the first longitudinal end 321, 331 of the side walls 320, 330 of the adapter 300. En d ' other words, longitudinally, the opening through 370 is delimited by a contour 371 open at the longitudinal end 341 of the upper wall 340. Thus, in the example illustrated in FIGURES 1C, 1D and 1E, the first longitudinal end 341 of the upper wall 340 s 'extends longitudinally, at the first longitudinal end of the adapter 300, at most to the first longitudinal ends 321, 331 corresponding to the side walls 320, 330; and a second longitudinal end 342 of the upper wall 340 extends longitudinally, at the level of the second longitudinal end of the adapter 300, at most up to the corresponding second longitudinal ends 322, 332 of the side walls 320, 330. Consequently, the upper wall 340 of the adapter 300 according to the invention does not include a tongue which projects in relation to the side walls 320 330.

Laterally, the through opening 370 of the upper wall 340 is delimited by the inner faces 325, 335 of the side walls 320, 330 of the adapter 300. Thus, the through opening 370 of the upper wall 340 of the adapter 300 has a generally rectangular shape.

In the various embodiments illustrated in FIGURES 1, the adapter 300 according to the first aspect of the invention is configured to be pivotally mounted around a rotation axis 310 on the connector 200 of the wiper blade on which it is intended to be mounted. To this end, the adapter 300 includes means configured to define the axis of rotation 310:

- At the level of the first side wall 320, the axis of rotation 310 is formed by a cylindrical housing 380 formed from the inside face 325 of the first side wall 320 and opening laterally at the level of the outside face 324 of the first side wall 320. More particularly, the axis of rotation 310 is located in the center of the cylindrical housing 380, and the axis of rotation 310 is coaxial with the cylindrical housing 380;

- At the level of the second side wall 330, the axis of rotation 310 is formed by a cylindrical sleeve 390 which extends projecting from an inner face 335 of the second side wall 330. More particularly, the axis of rotation 310 is located in the center of the cylindrical sleeve 390; and the axis of rotation 310 is coaxial with the cylindrical sleeve 390. In addition, the cylindrical sleeve 390 comprises a through opening 395 delimited by a circular outline 396, the through opening 395 being coaxial with the cylindrical sleeve 390. The through opening 395 of the cylindrical sleeve 390 passes laterally right through the second side wall 330 of the adapter 300. In addition, the cylindrical sleeve 390 is coaxial with the cylindrical housing 380.

According to the invention according to its first aspect, and as can be seen more particularly in FIGS. TB and 1E, the lower bearing face 323 of the first side wall 320 of the adapter 300 extends at least directly above the cylindrical housing 380. In other words, the lower bearing face 323 of the first wall 320 extends longitudinally between longitudinal sides 382a, 382b delimiting longitudinally the cylindrical housing 380. In fact, the cylindrical housing 380 is delimited by a peripheral contour 381 comprising the two longitudinal sides 382a, 382b. The peripheral contour 381 is advantageously polygonal, and preferably square in the various embodiments illustrated in FIGURES 1.

More generally, the lower bearing face 323 of the first side wall 320 of the adapter 300 is at least partly located between the two longitudinal sides 382a, 382b of the cylindrical housing 380. Consequently, the face d 'lower support 323 of the first side wall 320 extends longitudinally beyond the longitudinal sides 382a, 382b of the cylindrical housing 380, towards the first 321 and / or the second 322 longitudinal end of the first side wall 320 of the adapter 300. Preferably, the lower bearing face 323 of the first side wall 320 extends longitudinally symmetrically with respect to the axis of rotation 310. Also preferably, and as visible in FIGURES 1, the face lower support 323 of the first side wall 320 extends longitudinally along the entire first side wall 320, that is to say up to the first 321 and / or the second 322 longitudinal end of the first wall i lateral 320. As can be seen in FIGURES îA and îD, the lower bearing face 333 of the second side wall 330 of the adapter 300 extends at least in line with the cylindrical sleeve 390. In other words, the face d lower support 333 of the second wall 330 extends longitudinally between the circular contour 396 delimiting the through opening 395. More generally, the lower support face 333 of the second side wall 330 of the adapter 300 is at least partly situated between the circular contour 396 delimiting the through opening 395. Optionally, the lower bearing face 333 of the second side wall 330 of the adapter 300 is at least partly situated longitudinally between the blanks delimiting the cylindrical sleeve 390.

As a result, the lower bearing face 333 of the second side wall 330 extends longitudinally beyond the circular outline 396 delimiting the through opening 395 and / or beyond the blanks delimiting the cylindrical sleeve 390, in the direction of the first 331 and / or the second 332 longitudinal end of the second side wall 330 of the adapter 300. Preferably, the lower bearing face 333 of the second side wall 330 extends longitudinally symmetrically with respect to the 'axis of rotation 310. Also preferably, and as visible in the various embodiments illustrated in FIGURES 1, the lower bearing face 333 of the second side wall 330 extends longitudinally along the entire second side wall 330, c that is to say up to the first 331 and / or the second 332 longitudinal end of the second side wall 330.

The adapter 300 further comprises a coupling member 360 in order to allow mechanical coupling of the adapter 300 in the yoke 650 of the articulated arm 600 for longitudinally locking the adapter 300 in the yoke 650.

In the exemplary embodiments illustrated in FIGURES 1, the coupling member 360 is located at the top wall 340 of the adapter 300. In particular, the coupling member 360 comprises:

a bearing surface 362 connected to the upper wall 340 of the adapter 300 by means of a flexible hinge 365 configured to allow elastic deformation of the bearing surface 362 relative to the upper wall 340 of the adapter 300;

- a support button 361 located at a free longitudinal end of the support surface 362.

The bearing surface 362 extends longitudinally from the second longitudinal end 342 of the upper wall 340 of the adapter 300. The bearing surface 362 has a prismatic shape. In addition, the bearing surface 362 forms with the upper wall 340 of the adapter 300 - in its natural configuration, that is to say without being subjected to any other force than its own weight - a non-zero angle, preferably less than 10 °, so that the free end of the bearing surface 362 is situated vertically above the upper face of the upper wall 340.

The support button 361 has a polygonal shape, and in particular square in the example illustrated in FIGURES tC, tD and îE. Laterally, the support button 361 is wider than the support surface 362, relative to the lateral axis Y. Vertically, the support button protrudes above the support surface 362, relative to the vertical axis Z.

The flexible hinge 365 is formed by two longitudinal notches 366 which laterally border the bearing surface 362 on either side, relative to the transverse axis Y. Due to the relatively small thickness of the bearing surface 362, relative to the vertical axis Z - equal to or substantially equal to that of the upper wall 340 - a force exerted vertically on the support button 361 generates an elastic deformation of the support surface 362, leading to a rotational movement of the coupling member 360 around the second longitudinal end 342 of the upper wall 340 of the adapter 300. As will be described later with reference to FIGURES 3A to 3D, the press button 361 is intended to collaborate with an opening 653 produced in the clevis 650 of the articulated arm 600.

The first longitudinal ends 321, 331, 341 of the side walls 320, 330 and upper 340 of the adapter 300 together form a securing means making it possible to retain the adapter 300 in the yoke 650 of the articulated arm 600 with which it is intended to collaborate, when the body of coupling 360 is uncoupled from the yoke 650. In fact, the first longitudinal ends 321, 331 of the side walls 320, 330 and by the first longitudinal end 341 of the upper wall 340 together form a flat surface which facilitates its abutment against a longitudinal end of the yoke 650, as will be described later with reference to FIGURES 3A to 3D. More particularly, the upper wall 340 does not extend longitudinally in front of the side walls 320, 330 of the adapter 300. Conversely, the upper wall 340 extends longitudinally - at most - at the side walls 320, 330 , but not beyond.

According to the invention according to its first aspect, the adapter 300 comprises at least one groove 100 formed on the first side wall 320 and / or on the second side wall 330. In the various embodiments illustrated in FIGURES 1, l adapter 300 comprises a single groove 100 formed on a single side wall 320, 330. More specifically, the adapter 300 comprises a single groove 100 formed on the second side wall 330, the groove 100 extending longitudinally from the first longitudinal end 321, 331, 341 of the adapter 300 and in the direction of the second longitudinal end 322, 332, 342.

More specifically, in the embodiments illustrated in FIGURES 1, the groove 100 extends longitudinally to the second longitudinal end 322, 332, 342 of the adapter 300, so that the groove 100 passes longitudinally through the adapter 300 right through. In other words, the groove 100 is delimited longitudinally by two longitudinal ends 101, 102, each longitudinal end 101, 102 of the groove 100 coinciding with a longitudinal end 321, 331, 341, 322, 332, 342 of the adapter 300.

The groove 100 extends longitudinally: it is parallel to the upper wall 340 of the adapter 300. In other words, at least one groove bottom stop 103, 104 delimiting the groove 100 between its two longitudinal ends 101, 102 is parallel to the upper wall 340 of the adapter 300. Preferably, and as visible in the different modes of embodiment illustrated in FIGS tF, îG and îH, all the groove bottom edges 103, 104 of the groove 100 are parallel to the upper wall.

According to the invention, the groove or grooves 100 can take a plurality of different shapes as a function of a complementary shape of a tongue 656 formed on the yoke 650 of the articulated arm 600 in which the adapter 300 is intended to be inserted. Generally, each groove 100 is formed by one or more peripheral edges 110, 120, 130 which delimit laterally and vertically the shape of the groove or grooves 100 along the side wall 320, 330 of the adapter 300 on which it (s) is (are) formed. Each groove bottom stop 103, 104 is formed at the intersection between two peripheral edges 110, 120, 130 adjacent to the same groove 100.

As visible in FIGURES îE, tF, tG and îH, at least part of the peripheral edges 110, 120, 130 - and preferably all the peripheral edges 110, 120, 130 - of the same groove 100 are planar. Advantageously, at least part of the peripheral edges 110, 120, 130 - and preferably all the peripheral edges 110, 120, 130 - of the same groove 100 are perpendicular to at least one of the longitudinal ends 321, 331, 341, 322, 332, 342 of the adapter 300, and preferably simultaneously at the two longitudinal ends 321, 33b 341, 322, 332, 342. This advantageous configuration makes it possible to guarantee an identical shape of the groove between its two longitudinal ends 101, 102: in a transverse plane formed by the lateral axis Y and the vertical axis Z, the groove 100 retains the same transverse profile.

Several examples of embodiment of the groove 100 are shown in FIGURES tF, tG and 1H which highlight different transverse profiles of the grooves 100:

- FIGURE tF illustrates a groove 100 in the shape of a “U”. Such a groove 100 is delimited laterally by a bottom peripheral edge 130 and it opens laterally at the side wall 320, 330 on which it is formed, here the second side wall 330 of the adapter 300. The bottom peripheral edge 130 is advantageously parallel to the second side wall 330. Vertically, the groove 100 illustrated in FIGURE 1F is delimited by an upper peripheral edge 110 and a lower peripheral edge 120. The upper and lower peripheral edges 110, 120 are substantially perpendicular to the bottom peripheral edge 130: the upper peripheral edge 110 and the peripheral bottom edge 130 together form a draft angle of between -20 ⁰ and + 20 °; the lower peripheral edge 120 and the bottom peripheral edge 130 together form a draft angle of between -20 ⁰ and + 20 °. Thus, advantageously and as illustrated in FIGURE tF, the upper peripheral edges 110 and lower 120 have an undercut shape. Alternatively, the upper peripheral edges 110 and lower 120 have an undercut shape. In addition, the draft - or respectively the draft - is preferably symmetrical at the upper peripheral edge 110 and the lower peripheral edge 120. A vertical dimension of the groove 100 is advantageously between 30% and 50% of a vertical dimension of the side wall 320, 330 on which said groove 100 is formed. Finally, a vertical position of the groove 100 is centered or substantially centered with respect to the side wall 320, 330 on which said groove 100 is formed, to 20% near its vertical dimension;

- FIGURE tG illustrates a first variant of groove 100 in the shape of an “L”. Such a groove 100 is delimited laterally by a bottom peripheral edge 130 and it opens laterally at the side wall 320, 330 on which it is formed, here the second side wall 330 of the adapter 300. The bottom peripheral edge 130 is advantageously parallel to the second side wall 330. Vertically, the groove 100 illustrated in FIGURE tG is delimited by a single upper peripheral edge 110: it opens vertically at the level of the lower bearing face 333 of the second side wall 330 The upper peripheral edge 110 is substantially perpendicular to the bottom peripheral edge 130: the upper peripheral edge 110 and the bottom peripheral edge 130 together form a draft angle of between -20 ^° and + 20 °. Thus, advantageously and as illustrated in FIGURE tG, the edge upper device no has a slender shape. Alternatively, the upper peripheral edge no has an undercut shape;

- FIGURE îH illustrates a second variant of groove îoo in the shape of an "L". Such a groove 100 is delimited laterally by a peripheral bottom edge 130 and it opens laterally at the side wall 320, 330 on which it is formed, here the second side wall 330 of the adapter 300. The peripheral bottom edge 130 is advantageously parallel to the second side wall 330. Vertically, the groove 100 illustrated in FIGURE tG is defined by a single lower peripheral edge 120: it opens vertically at the upper wall 340 of the adapter 300. The peripheral edge lower 120 is substantially perpendicular to the peripheral bottom edge 130: the lower peripheral edge 120 and the peripheral bottom edge 130 together form a clearance angle of between -20 ⁰ and + 20 °. Thus, advantageously and as illustrated in FIGURE tG, the lower peripheral edge 120 has an undercut shape. Alternatively, the lower peripheral edge 120 has an undercut shape.

With reference to FIGURES 2A and 2B, the adapter 300 illustrated in FIGURES 1 is assembled on a wiper blade 500 comprising:

- a structure 400 supporting a wiping blade 430;

- A connector 200 fixedly attached to the structure 400;

- An adapter 300 according to the first aspect of the invention or according to any of its improvements, as described above, said adapter 300 being pivotally mounted on the connector 200.

FIGURE 2B illustrates a sectional view along a lateral plane YZ as shown in FIGURE 2A.

The structure 400 of the wiper blade 500 comprises a support 440 visible in FIGURE 2B and which directly supports the wiping blade 430. The support 440 is fixed integrally to the structure by means notably of the connector 200 and d '' at least one end cap 420. Vertically, the wiping blade 430 and the support 440 are surmounted by a deflector 410, relative to the vertical axis Z.

As an alternative to this wiper blade structure, this may consist of two vertebrae housed in a heel of the wiper blade and taken by the connector. According to another example, the structure of the wiper blade includes a single vertebra on which the connector is fixedly attached, and against which a heel of the wiper blade is glued.

The connector 200 is fixedly attached to the structure 400 of the wiper blade 500 and plays a role of mechanical interface with the adapter 300 which - itself - plays a role of interface with the articulated arm 600 of the wiping 700 with which the wiper blade 500 is intended to be adapted. To this end, the adapter 300 is mechanically coupled to the connector 200. More particularly, the adapter 300 is pivotally mounted on the connector 200.

To this end, the connector 200 includes a rotation axis 240 intended to collaborate with the rotation axis 310 of the adapter 300. As visible in FIGURE 2B, the rotation axis 240 of the connector 200 is materialized by:

- a cylindrical housing 210 collaborating with the cylindrical sleeve 390 of the adapter 300; and

- a cylindrical sleeve 220 collaborating with the cylindrical housing 380 of the adapter 300.

Thus, when the adapter 300 is pivotally mounted on the connector 200, then the cylindrical sleeve 390 of the adapter 300 is introduced into the cylindrical housing 210 of the connector; and the cylindrical housing 380 of the adapter 300 receives the cylindrical sleeve 220 of the connector 200. This advantageous configuration makes it possible to make the axes of rotation 310, 240 of the adapter 300 and the connector 200 coaxial. Consequently, this results in mounting in pivot of the adapter 300 on the connector 200, with respect to their axes of rotation 310, 240.

With reference to FIGURES 3A to 3D, there are shown several embodiments of a wiping system 700 in accordance with the third aspect of the invention and incorporating the variant embodiments of the adapter 300 illustrated in FIGURES 1F, 1G and 1H.

Such a wiping system 700 comprises at least one articulated arm 600 detachably fixed to the adapter 300 of the wiper blade 500 according to the second aspect of the invention and as described with reference to FIGURES 2. Each articulated arm 600 comprises a yoke 650 inside which the adapter 300 is housed and mechanically coupled by engagement of complementary shapes. In addition, each articulated arm 600 is rotated by an electric motor, not shown in FIGURES 3.

The yoke 650 of the articulated arm 600 comprises two lateral edges 651 connected to each other by an upper edge 652. As visible in FIGURES 3B, 3C and 3D, the yoke 650 is open at a lower vertical end, that is to say that is to say at the level of a distal end of the lateral edges 651 with respect to the upper edge 652 of the yoke 650.

At these distal ends, each lateral edge 651 comprises a folded edge 655 which extends laterally towards the inside of the yoke 650. Each folded edge 655 of the yoke 650 thus forms a sidewalk which extends laterally towards the inside of the yoke 650 with respect to the associated lateral edge 651, relative to the transverse axis X.

When the adapter 300 is mounted in the yoke 650, the lower bearing face 323, 333 of at least one of the side walls 320, 330 - and preferably of the two side walls 320, 330 - of the adapter 300 is in support against the folded edge 655 of the yoke and located opposite.

Thus, the folded edge of the yoke 655 bears against the lower bearing face 323, 333 of the corresponding side wall 320, 330 of the adapter 300 at the axis of rotation 310 of said adapter 300. At d In other words, in line with the axis of rotation 310, the adapter 300 is in vertical support against the folded edge of the yoke 650, relative to the vertical axis Z.

Additionally, as shown in FIGS. 3B, 3C and 3D, the external faces 324, 334 of the side walls 320, 330 of the adapter 300 are in lateral support against the side edges 651 of the yoke 650. This configuration thus makes it possible to keep the adapter 300 in the yoke 650, and thus guarantee a good mechanical coupling between the wiper blade 500 and the articulated arm 600 of the wiping system 700.

In addition, when the adapter 300 is housed in the yoke 650 in its functional configuration, that is to say that in which the wiping system 700 can be activated on a glass wall of a motor vehicle, then the the coupling member 360 of the adapter 300 collaborates with an opening 653 formed on the yoke 650. This configuration makes it possible to block the wiper blade 500 on the articulated arm 600, more particularly preventing a relative longitudinal movement between the 'adapter 300 and the yoke 650. The opening 653 is located on the upper edge 652 of the yoke 650; and the opening 653 of the yoke 650 has a shape complementary to that of the button 361 of the coupling member 360 of the adapter 300, in order to allow engagement of the button 361 in the opening 653 when the adapter 300 reaches in its functional configuration.

At a first longitudinal end, located at the front of the yoke 650, the yoke 650 of the articulated arm 600 is closed by a closing edge 654 which extends laterally between the two lateral edges 651 of the yoke 650. Vertically, the closing edge 654 is open at a lower vertical end, similar to the lateral edges 651 of the yoke 650. On the other hand, the closing edge 654 does not have folded edges similar to those of the lateral edges 651.

At a second longitudinal end, located at the rear of the yoke 650, the yoke 650 of the articulated arm 600 is open: the lateral edges 651 are not connected to each other by a transverse edge which would close off the yoke 650. At the level of the second rear longitudinal end, the yoke 650 comprises at least one tongue 656 which extends towards the inside of the yoke 650. Each at least one tongue 656 is configured to be inserted with play in the groove 100 of the adapter 300 located opposite. The at least one tongue 656 is formed from the upper edge 652 or from one of the side edges 651 of the yoke 650.

Advantageously, and as illustrated in FIGURES 3, the yoke 650 comprises a single tongue 656 which extends from one of its edges 651, 652. Preferably, the tongue 656 projects inwardly towards the inside of the yoke 650, from the lateral edge 651 opposite the arm 610 of the articulated arm 600, relative to the yoke 650.

A shape and / or a dimension of the tongue 656 are such that it is possible to insert the tongue 656 inside the groove 100 of the adapter - when it is inserted into the yoke 650 by a translational movement longitudinal relative to the longitudinal axis X - without the tongue touching the peripheral edges 110, 120, 130 of the corresponding groove 100.

The tongue 656 is advantageously formed by a tab folded back from part of the edge 651, 652 of the yoke from which it is formed.

Thus, during the assembly of the wiping system 700, the wiper blade 500 is presented at the second longitudinal end of the yoke 650, on the side of the tongue 656. The adapter 300 of the wiper blade 'wiper 500 is oriented so as to present the groove 100 on the side of the tongue 656 of the yoke 650, that is to say on the side opposite to the arm 610 of the articulated arm 600 relative to the yoke 650. Thus , the groove 100 formed on the adapter 300 associated with the tongue formed on the yoke 650 makes it possible to define a single direction of mounting of said adapter 300 in said yoke 650.

As shown in FIGURES 3B, 3C and 3D, the three alternative embodiments of the adapter 300 are illustrated in collaboration with the same yoke 650 of articulated arm 600:

- in FIGURE 3B, the tongue 656 has a prismatic shape whose dimensions and shape allow insertion without play in the groove 100 in the shape of a "U" of the adapter 300: the tongue 656 is located at a distance from the peripheral edges 110, 120 and 130 of the groove 100;

- in FIGURE 3C, the tongue 656 has a prismatic shape whose dimensions and shape allow insertion without play in the groove 100 in the form of an "L" opening out towards the lower bearing face 333 of the second side wall 330 of the adapter 300: the tongue 656 is located at a distance from the peripheral edges 110, 130 of the groove 100; - in FIGURE 3B, the tongue 656 has a prismatic shape whose dimensions and shape allow insertion without play in the groove 100 in the form of an "L" opening out towards the upper wall 340 of the adapter 300: the tongue 656 is located at a distance from the peripheral edges 110, 120 and 130 of the groove 100.

The wiper blade 500 - and more particularly the adapter 300 - is then translated in the yoke 650 in a longitudinal translation movement, relative to the longitudinal axis X. During this longitudinal translation movement, the face d bottom support 323, 333 of the side walls 320, 330 of the adapter 300 is in vertical support against the folded edges 655 of the yoke 650, and the side walls 320, 330 of the adapter 300 are also in lateral support against the lateral edges 651 of said yoke 650. This configuration makes it possible to constrain the movement of the adapter 300 in the yoke 650 to only a movement of longitudinal translation.

When the adapter 300 reaches, in the yoke 650, in its functional configuration of the wiping system 700, then the pressing button 361 of the coupling member 360 snaps into the corresponding opening 653 of the yoke 650 .

In summary, the invention relates in particular to an adapter 300 for fixing a wiper blade 500 on an articulated arm 600 of a wiping system 700, the adapter 300 being pivotally mounted on a connector 200 of the wiper blade 500. The adapter 300 comprises two side walls 320, 330 connected together by an upper wall 340 and forming between them a housing 350 for the connector 200. At a distal end of the side walls 320 , 330 relative to the upper wall 340, the connector comprises a lower bearing face 323, 333 intended to collaborate with a folded edge 655 of the yoke 650. According to the invention, at least one of the side walls 320, 330 of the adapter 300 comprises one or more grooves 100 which extend longitudinally between the two longitudinal ends 321, 331, 341, 322, 332, 342 of said adapter 300 in order to allow a contactless insertion of a folded tab forming a tongue 656 on an edge 651, 652 of the yoke 650 of the articulated arm 600. Of course, the invention is not limited to the examples which have just been described and numerous modifications can be made to these examples without departing from the scope of the invention. In particular, the different characteristics, forms, variants and embodiments of the invention can be associated with one another in various combinations insofar as they are not incompatible or mutually exclusive of each other. In particular, all the variants and embodiments described above can be combined with one another.

Claims

1. Adapter (300) for fixing a wiper blade (500) in a yoke (650) of an articulated arm (600) of a wiping system (700), the adapter (300 ) being configured to be pivotally mounted about an axis of rotation (310) on a connector (200) of the wiper blade (500), the adapter (300) comprising two distant side walls (320, 330) one from the other and linked together by an upper wall (340), each side wall (320, 330) of the adapter (300) comprising a lower bearing face (323, 333) on a folded edge (655) of the yoke (650) of the articulated arm (600), characterized in that at least one of the side walls (320, 330) comprises a groove (100) which extends longitudinally from a first longitudinal end (321, 331, 341) of the adapter (300) and in the direction of a second longitudinal end (322, 332, 342).

2. Adapter (300) according to the preceding claim, wherein the groove (100) of at least one of the side walls (320, 330) extends longitudinally to the second longitudinal end (322, 332, 342) of the adapter (300).

3. Adapter (300) according to any one of the preceding claims, in which the groove (100) of at least one of the side walls (320, 330) has a transverse profile in U or in L or in V or in T .

4. Adapter (300) according to any one of the preceding claims, in which the groove (100) of at least one of the side walls (320, 330) comprises at least one groove bottom stop (103, 104) located in the groove (100) and at a distance from the side wall (320, 330) on which the groove (100) is formed, the groove bottom stop (103, 104) being parallel to said side wall (320, 330 ) on which the groove (100) is formed.

5. Adapter (300) according to any one of the preceding claims, in which the adapter (300) comprises a first groove (100) formed on the first side wall (320) and a second groove (100) formed on the second side wall (330).

6. Adapter (300) according to the preceding claim in combination with claim 3, wherein the first groove (100) and the second groove (100) have the same transverse profile.

7. Adapter (300) according to any one of claims 5 or 6, in which the first groove (100) and the second groove (100) have identical longitudinal lengths.

8. Adapter (300) according to any one of the preceding claims, in which, on a first side wall (320) of the adapter (300), the axis of rotation (310) is formed by a cylindrical housing (380 ) formed from an inner face (325) of the first side wall (320).

9. Adapter (300) according to the preceding claim, wherein the cylindrical housing (380) is delimited by a peripheral polygonal contour (381).

10. Adapter (300) according to any one of claims 8 or 9, wherein, on a second side wall (330), the axis of rotation (310) is formed by a cylindrical sleeve (390) which extends projecting from an inner face (335) of the second side wall (330), the cylindrical sleeve (390) being coaxial with the cylindrical housing (380).

11. Adapter (300) according to any one of the preceding claims, in which the adapter comprises a coupling member (360) of the adapter (300) with the yoke (650) of the articulated arm (600).

12. A wiper blade (500) for a motor vehicle comprising: a structure (400) supporting a wiper blade (430); a connector (200) fixedly attached to the structure (400); an adapter (300) according to any one of the preceding claims pivotally mounted on the connector (200).

13. Wiping system (700) comprising at least one articulated arm (600) detachably fixed to the adapter (300) of the wiper blade (500) according to the preceding claim, each articulated arm (600) comprising a yoke (650) mechanically coupled to the adapter (300) by engagement of complementary shapes.

14. Wiping system (700) according to the preceding claim, wherein the yoke (650) of the articulated arm (600) comprises two lateral edges (651) connected together by an upper edge (652), the upper edge (652 ) and / or at least one of the side edges (651) comprising a tongue (656) which extends towards the inside of the yoke (650), the tongue (656) being configured to be inserted with play in the at least one corresponding groove (100) of the adapter (300).

15. Wiping system (700) according to any one of claims 13 or 14, wherein the tongue (656) extends towards the inside of the yoke (650) from the lateral edge (651) of said yoke (650) located opposite the yoke with respect to an arm (610) of the articulated arm (600).