FR3047712A1 - ADAPTER COMPRISING A WIPING SYSTEM. - Google Patents

Abstract

The invention relates to an adapter 9 intended to equip an end portion of a drive arm, the adapter 9 comprising at least one body 11 on which is fixed at least a first retractable fastening means 37 adapted to secure the adapter 9 at the end portion, the adapter 9 comprising a second retractable fastening means consisting of a first tongue 23b from the body 11 and rotatable about a first axis of flip-flop Acl and a second tab 23c from the body 11 and mobile in rotation about a second axis of flip-flop Ac2, characterized in that the first retractable fastening means 37 comprises at least one constant holding means 80 of a distance D separating the first flip-flop axis Acl from the second ac2 rocking axis.

Description

ADAPTER COMPRISING A WIPING SYSTEM.

The present invention relates to wiper systems for a motor vehicle, and more particularly relates to an adapter which is constitutive of such a wiper system.

A wiper system, commonly called wipers, for a motor vehicle is designed to remove, by sweeping, liquids and dirt that can disturb the vision that a driver of the motor vehicle has its environment. These windscreen wipers generally comprise a drive arm that moves angularly about an axis of rotation, and an elongated wiper blade equipped with a scraper blade made of an elastic material. By rubbing against a glazed surface, front or rear, of the motor vehicle, the scraper blade sweeps the water and a number of soils, and evacuates them outside the field of vision of the driver.

Whatever the configuration of the wiper blade, that is to say either a wiper having articulated stirrups that hold the scraper blade in several distinct areas, or a wiper blade having a metal blade that maintains the scraper blade along its entire length, the wiper blade is attached to an end portion of the drive arm via a connecting device which comprises a connector mounted integral with the wiper blade.

In a first known connection mode, an adapter, adapted to be assembled with the wiper blade connector, is mounted movably tilting about a fixing axis on the end portion of the drive arm. This first mode of connection is commonly used for wipers for glazed surfaces located at the front of the motor vehicle. In a second known connection mode, the connector is connected to a shaft integral with the drive arm. This second mode of connection is commonly encountered in wipers for glazed surfaces located at the rear of the motor vehicle. The closest state of the art is formed by the document US2011 / 0247166A1 which describes a fixing device comprising a connector which carries the wiper blade, and an adapter for connecting the connector to a terminal part of a plurality. drive arm of different design.

A general problem in the field is that the end portions of the drive arm are likely to be of various shapes. It follows a desire to have an adapter whose arrangement allows attachment of the adapter to the respective end portions of different shape. Indeed, to facilitate referencing and storage operations in particular, as well as to reduce manufacturing and maintenance costs of the wiper system, it is desirable to have a single adapter capable of producing a compatible mounting interface with on the one hand the connector and on the other hand various forms of end portions of the drive arm. As a result, it is necessary to have an adapter comprising a plurality of fastening means on various forms of the end portion of the drive arm, these fastening means being simple, compact and nevertheless robust, and not affecting an actuator member. pivoting of the adapter on the wiper blade carrying connector.

In this document of the prior art, a first fixing means assigned to an end portion of a first "toplock I" type arm is independent of a second fixing means assigned to an end portion of a second type of "toplock II" design arm. During the insertion procedure of the adapter in the end portion of the first type of arm, the second fastening means retracts but this retraction is made difficult because the restoring force of the second fastening means is dimensioned to ensure restraint of the adapter on the end part of the second type of "toplockII" design arm. Thus, mounting the adapter in the end portion of a first arm type "toplock I" is poor ergonomic, difficult to implement and ultimately dangerous because there are situations where the wiper is not not properly attached to his arm.

An object of the present invention is to provide an adapter which is arranged to allow optimized operation of any one of the first and second holding means regardless of the positioning of the other of the first and second holding means, in order to to ensure the durability of the adapter and make a robust and reliable mechanical connection between the adapter and the end portion of the drive arm while facilitating, when necessary, a connection and / or separation of the adapter and the end portion concerned.

An adapter of the present invention is an adapter for equipping an end portion of a drive arm, the adapter comprising at least one body on which is fixed at least a first retractable fastening means adapted to secure the adapter to the end portion, the adapter comprising a second retractable fastening means consisting of a first tongue coming from the body and movable in rotation about a first rocker axis and a second tongue coming from the body and rotatable about a second rocker axis, characterized in that the first retractable fastening means comprises at least one constant holding means of a distance separating the first rocker axis from the second rocker axis.

Thus, the holding means is arranged to change the flexibility of the first tongue and the second tongue according to the position of the first retractable fastening means. According to an exemplary embodiment, the holding means allows greater flexibility of the first and second tongues when the first fastening means is not retracted, that is to say when it is in the initial position ensuring a blocking of the adapter in the end part of the drive arm. The adapter advantageously comprises at least one of the following characteristics taken alone or in combination: the first retractable fastening means comprises a third tongue equipped with at least one stud. This tongue and this stud together form a retractable button. A foot of this tongue is for example a longitudinal end of the body forming the adapter, the body comprises an upper portion and two lateral portions which extend on either side of the upper portion. In section, this upper portion and these two side walls form a "U" where the holding means extends, - the third tongue is derived from the upper part of the body. According to an exemplary embodiment, this tongue pivots about a tilting axis which can extend transversely to the adapter or between the stud and a longitudinal end of the adapter where at least one of the tongues extends, either between the stud and a pivoting member of the adapter on the connector, - the first tongue comes from a first lateral portion of the body, and the second tongue comes from a second lateral portion of the body, - the third tongue is mounted rotatably about a tilting axis, the first retractable fastening means being adapted to assume a nominal locking position of the adapter in an end portion of the arm, or a retracted position in which the adapter is released from the end portion of the drive arm, the tilting axis is for example orthogonal to at least one of the first rocker axis or the second rocker axis; in nominal position of the first retractable fastening means, the holding means extends between a plane passing through the rocker axes and a plane passing through a pivoting member arranged to allow pivoting of the adapter relative to a connector. According to a refinement of this aspect, this position excludes the plane passing through the rocking axes of the tongues, - in the retracted position of the first retractable fastening means, the holding means extends between a plane passing through the rocker axes and a end of the adapter where extends at least the first tab. According to one embodiment, this position includes the plane passing through the flip-flop axes, the first retractable fastening means is delimited by at least one inner face from which the holding means emerges. Note that this inner face is that which faces the "U" formed by a cross section of the adapter, - the holding means comprises at least one cross member which extends transversely to the adapter and which has two ends transverse spacing apart from one another, - according to an exemplary embodiment, the cross member is connected to the inner face of the first fastening means by a finger which can advantageously be centered transversely on the adapter. The invention also aims to cover the combination of a wiper blade and an adapter as described herein. It is understood that the adapter is not necessarily physically connected to the wiper blade to constitute the invention. This is the case of the products marketed in the automotive after-sales network and consisting of a packaging in which is placed a wiper blade and at least one adapter according to the invention, and in particular a plurality of adapters at least one of which is described in this document.

The present invention also relates to a connection device formed of a connector and an adapter, as described herein. The invention further relates to a drive arm comprising an end portion which is equipped with such an adapter.

The end portion is for example a terminal portion of a first type comprising transverse stops against which come into contact transverse amounts that comprise the first tongue and the second tongue.

The end portion is for example an end portion of a second type, distinct from that of the first type, and comprising a window intended to receive the stud in nominal position, that is to say blocking. Finally, the invention relates to a wiper system comprising a drive arm, a connector integral with a wiper and an adapter as described in detail in this document which connects the connector to the drive arm pivotally. . All these arrangements are such that the adapter is adapted to be mounted on an end portion of the drive arm of any type ensuring a strong and durable connection between the end portion and the adapter, the first fastening means the adapter on the first type of end portion to adapt the flexibility of the second fixing means of the adapter on the end portion of the second type, depending on the position of the first fastening means. Other features, details and advantages of the invention will emerge more clearly on reading the description given below as an indication in relation to drawings in which: FIG. 1 is a perspective view of a system of FIG. FIG. 2 is a perspective view from above of an adapter of the present invention constituting the wiper system illustrated in FIG. 1; FIG. 3 is a perspective view from below of FIG. the adapter shown in Fig. 2 shown at a locking position of the adapter in an end portion of a first type; Fig. 4 is a bottom perspective view of the adapter shown in Figs. 2 and 3; and shown in an unblocking position of the adapter with respect to the end portion of the first type, - Figure 5 is a perspective view of the adapter shown in Figures 2 to 4 equipped with a por connector. a wiper blade, the adapter being in assembly with a terminal arm portion of a first type; and - Fig. 6 is a perspective view of the adapter shown in Figs. 2 to 4 equipped with a connector carrying a wiper blade, the adapter being in the process of being assembled with a terminal portion of a second type of driving arm; FIG. 7 is a perspective view a connector constituting the wiper system illustrated in Figure 1.

In the figures, the names longitudinal, lateral, transverse, vertical, above, below, refer to the orientation of a wiper 1 shown in Figure 1. A longitudinal direction corresponds to a longitudinal axis X in which the wiper blade 1 extends and / or according to which extends the adapter of the present invention. A transverse direction corresponds to that of a transverse axis Y which is perpendicular to the longitudinal axis X and to an axis of rotation Ar of a driving arm 2 constituting a wiper system 3. A vertical direction, parallel to that of a vertical axis Z, and the upper or lower denominations relate to orientations parallel to the axis of rotation Ar of the drive arm 2 of the wiper system 3, the lower denomination containing the plane of the bumper -broken. For the longitudinal directions, the outer or inner names are assessed with respect to a pivot point of the wiper blade 1 on the drive arm 2 of the wiper blade 1, the inner denomination corresponding to the part where the arm 2 and a half-broom extend, the outer denomination corresponding to the part where the other half-broom extends.

The directions mentioned above are illustrated in an orthonormal Oxyz coordinate system shown in the figures. In this frame, the axis Ox represents the longitudinal direction, the axis Oy represents the transverse direction, and the axis Oz represents the vertical direction.

In Figure 1, a motor vehicle is commonly equipped with the wiper system 3 for discharging water and / or dirt present on a glass surface, including a rear window or a windshield of a motor vehicle. The wiper system 3 comprises a drive arm 2 which is capable of reciprocating angularly along and above the glass surface. The glazed surface is indifferently a front windshield or a rear window equipping the motor vehicle.

The wiper system 3 also comprises the wiper blade 1 which extends along a main axis, said longitudinal axis X parallel to the axis Ox. The wiper blade 1 comprises at least one air deflector 4 and a scraper blade 5. The air deflector 4 is designed to transform a pressure applied by a flow of air flowing along the glass surface into a force supporting the wiper blade 1 against the glazed surface of the motor vehicle. The scraper blade 5 is the part of the wiper blade 1 in direct contact with the glass surface to evacuate the water and / or dirt present on the latter. The air deflector 4 and the scraper blade 5 form a semi-rigid assembly 6 which is carried by a connection device 7, interposed between the drive arm 2 and the semi-rigid assembly 6.

The connection device 7 provides a mechanical connection between the drive arm 2 and the wiper blade 1 and thus makes it possible to separate the wiper blade 1 from the drive arm 2, with a view to replacing the wiper blade. In general, the connection device 7 of the present invention comprises in all and for all two parts, including a connector 8 and an adapter 9, visible together in FIGS. 5 and 6. The connector 8, illustrated in FIG. FIG. 7 is suitable for carrying the wiper 1 and is rotatably mounted on the adapter 9, illustrated in FIGS. 2 to 4, which is capable of being fixed to an end portion 50, 60 of the arm 2. According to one embodiment of the invention, the connector 8 and the adapter 9 are made by molding a synthetic material, for example a material of the family of polyoxymethylenes, known by the acronym POM, or by molding a mixture of polym materials res, for example a mixture of polymers of the family of polycarbonate and acrylonitrile butadiene styrene family, known by the acronym ABS. The connector 8 on the one hand and the adapter 9 on the other hand are each in one piece. According to another embodiment, the end portion 50, 60 is made by folding a metal strip, such as an aluminum sheet or the like. According to another embodiment, the end portion 50, 60 is made by molding a synthetic material.

In FIGS. 2 to 4, the adapter 9 is extended along the longitudinal axis X and comprises an extended head 10 of a body 11, which are abutted with each other along the longitudinal axis X.

The head 10 comprises a head wall 12 which has a profile "U" in a section formed in a plane parallel to a transverse plane Pi, that is to say perpendicular to the longitudinal axis X of the adapter 9 The head wall 12 comprises an upper head portion 12a and two lateral head portions 12b, 12c. The upper head portion 12a is extended in a plane parallel to a horizontal longitudinal plane P2, while the lateral head portions 12b, 12c are parallel to one another and extended in a respective plane parallel to a vertical longitudinal plane. P3. The transverse plane Pi is parallel to the plane Oyz, the horizontal longitudinal plane P2 is parallel to the plane Oxy and the vertical longitudinal plane P3 is parallel to the plane Oxz. The head 10 also comprises a front wall 13 which is substantially formed in a plane parallel to the transverse plane Pi and which interconnects the upper head portion 12a and the lateral head portions 12b, 12c. The front wall 13 comprises a front notch 14 to allow passage of the wiper 1, during a rotational movement of the connector 8 relative to the adapter 9. The upper head portion 12a comprises a notch rear 15 which allows the passage of a protrusion front 51 of the end portion 50 of the first type illustrated in Figure 5. The adapter 9 according to the invention comprises a body 11 which has a body wall 16 with a profile in " U ", in a section formed in a plane parallel to the transverse plane Pi. The body 11 comprises an upper portion 16a and two lateral portions 16b, 16c. The upper portion 16a is extended in a plane parallel to the horizontal longitudinal plane P2 while the lateral portions 16b, 16c are parallel to one another and extended in a respective plane parallel to the vertical longitudinal plane P3.

The upper portion 16a of the body 11 is provided with a third flexible tongue 17 which is mounted to tilt on the upper portion 16a of the body 11 about a tilting axis referenced Ab. Preferably, the tilting axis Ab is arranged on a foot 18 of the body 11 which is positioned longitudinally opposite the head 13 of the adapter 9. The third flexible tongue 17 is equipped with a stud 19 which emerges above the upper portion 16a of the body 11. The stud 19 is rotatable about the tilting axis Ab in a small stroke such that at the beginning of the stroke the stud 19 is substantially mobile in translation inside the transverse plane Pi and the longitudinal plane. vertical P3.

The stud 19 has a bearing face 20a which is arranged parallel to the horizontal longitudinal plane P2, the bearing face 20a being intended to emerge through and above a window 61 fitted to the end portion 60 of the second illustrated type. in FIG. 6. More particularly, the stud 19 is mounted to move between a nominal locking position in which the stud 19 is housed inside the window 61 that includes the end portion 60 and an unlocking position in which the stud 19 is placed outside the window 61. The stud 19 and the third flexible tongue 17 form a retractable button whose function is to ensure the retention of the adapter 9 in a particular type of arm. This third flexible tongue 17 and its stud 19 form a first retractable fastening means 37 adapted to secure the adapter to the end portion 60 of the second type illustrated in FIG. 6.

The stud 19 has an inner face 20b formed opposite the bearing face 20a relative to the pad 19, the inner face 20b being formed parallel to the horizontal longitudinal plane P2. This inner face 20b is turned towards an internal volume of the adapter 9 delimited by its section "U".

The upper portion 16a of the body 11 is provided with at least two longitudinal guide rails 21b, 21c which are for example formed along a respective longitudinal edge 22b, 22c of the upper portion 16a of the body 11. The guide rails longitudinal 21b, 21c are parallel to each other and extended along the longitudinal axis X. Each longitudinal guide rail 21b, 21c is for example formed into a rib that emerges above the upper portion 16a of the body 11 The longitudinal guide ramps 21b, 21c are provided to guide a translational movement along the longitudinal axis X of the end portion 50, 60 of the drive arm 2. The longitudinal guide ramps 21b, 21c are each capable of be formed of a plurality of elementary longitudinal guide rails 210b, 211b, 210c, 211c discontinuous along the longitudinal axis X and aligned along the longitudinal axis X. First ramps elementary longitudinal guideways 210b, 210c are formed near the pad 19 while second longitudinal elementary guide rails 211b, 211c are formed near the head 10. The first elementary longitudinal guide rails 210b, 210c are respectively separated from the second elementary longitudinal guide rails 211b, 211c through a first orifice 212b and a second orifice 212c which are formed through the upper portion 16a of the body 11.

Each lateral portion 16b, 16c of the body 11 is provided with a tongue 23b, 23c which is mounted on the lateral portion 16b, 16c of respective body 11 around a respective flip-flop axis Acl, Ac2. The flip-flops Acl, Ac2 are perpendicular to the tilting axis Ab and to the longitudinal axis X. A first tongue 23b and a second tongue 23c each comprise a respective lateral upright 24b, 24c which is articulated on the lateral portion 16b. , 16c body 11. In other words, a first lateral amount 24b of a first tab 23b is articulated on a first lateral portion 16b of body 11 around a first axis of flip-flop Acl and a second lateral amount 24c of a second tongue 23c is articulated on a second lateral portion 16c of the body 11 around a second axis of flip-flop Ac2.

The lateral uprights 24b, 24c are extended in a plane parallel to the vertical longitudinal plane P3. Each lateral upright 24b, 24c is carrying a respective transverse upright 25b, 25c which is extended in a locking plane P4 orthogonal to the vertical longitudinal plane P3 and forming with the rocking axes Acl, Ac2 a first angle α which is 1 order of 45 ° to +/- 10%, as shown in Figures 3 and 4.

Each transverse upright 25b, 25c forms a sliding ramp for respective transverse stops 52 that includes the end portion 50 of the first type illustrated in FIG. 5. Each transverse upright 25b, 25c is provided with a respective longitudinal tab 26b, 26c which is extended in a plane parallel to the vertical longitudinal plane P3. The longitudinal tabs 26b, 26c form a longitudinal locking member of the adapter 9 in a first type of wiper arm.

The longitudinal tabs 26b, 26c carries a gripping member of the adapter 9 for disengagement of transverse stops 52 of the arm, as will be described later. For this purpose, the longitudinal tabs 26b, 26c are for example provided with gripping reliefs, such as ridges or the like, which are formed on an outer face of the longitudinal tabs 26b, 26c.

The inner face 20b of the stud 19 is advantageously equipped with a holding means 80 at a constant distance D taken along the transverse axis Y between the first flip-flop axis Acl and the second flip-flop axis Ac2. It is understood here that the inner face 20b carries the holding means 80, the latter being for example derived from the stud 19.

The holding means 80 comprises a finger 81 which is connected to the inner face 20b and which emerges above the latter. The finger 81 is for example parallelepipedal and extends parallel to the flip-flop axes Acl, Ac2 in the nominal position of the first fixing means 37. The finger 81 carries a cross-member 82 which extends along the transverse axis Y and which has two transverse ends 83b, 83c.

A first transverse end 83b is formed vis-à-vis the first lateral portion 16b of body 11 while a second transverse end 83c is formed vis-à-vis the second lateral portion 16c of the body 11. The first transverse end 83b and the second transverse end 83c are distant from each other in distance D.

In the nominal locking position, as illustrated in FIG. 3, the first transverse end 83b and the second transverse end 83c are positioned between a plane passing through the flip-flop axes Acl and Ac2 and a plane passing through a pivoting member of FIG. the adapter 9 on a connector 8 fitted to a wiper blade 1. This arrangement does not incorporate the plane passing through the axes of flip-flop Acl and Ac2, so as to allow great flexibility of the first and second tabs 23b, 23c.

In the unlocking position as illustrated in FIG. 4, the first end 83b and the second end 83c are in line with the plane passing through the first flip-flop axis Acl and the second flip-flop axis Ac2. This exemplary embodiment is nevertheless not limiting since the cross-member 82 can also extend beyond the plane passing through the first flip-flop axis Acl and by the second flip-flop axis Ac2, towards the first and second tabs 23b, 23c. These arrangements are such that the holding means 80, in this position, form a stiffening means of the connection between on the one hand the first lateral portion 16b of the body 11 and the first tongue 23b and on the other hand between the second portion side 16c of the bodyll and the second tab 23c. It finally results that the holding means 80 prevents a tilting of the first tab 23b and the second tab 23c respectively about the first flip-flop axis Acl and the second flip-flop axis Ac2. Thus, the holding means 80, as a function of the position of the first fixing means 37, modifies the flexibility of the first tongue 23b and the second tongue 23c.

Each lateral portion 16b, 16c of body 11 comprises at least a first guide surface 27b, 27c of a respective lateral edge 53 that includes the end portion 50 of the first type illustrated in FIG. 5. Preferably, each lateral portion 16b, 16c of body 11 has a plurality of first guide surfaces 27b, 27c which are aligned with each other along the longitudinal axis X. In addition, each lateral portion 16b, 16c of body 11 comprises at least a second guide surface 28b, 28c of a respective side edge 62 that includes the end portion 60 of the second type shown in Figure 6. Preferably, each side portion 16b, 16c of body 11 has a plurality of second guide surfaces 28b, 28c which are aligned with each other along the longitudinal axis X. According to one embodiment, the first guide surfaces 27b, 27c and the second guide surfaces 28b, 28c are superp dared to each other two by two in a respective plane which is parallel to the vertical longitudinal plane P3.

More preferably, the first guide surfaces 27b, 27c and the second guide surfaces 28b, 28c are polished to facilitate sliding of the end portion 50, 60. According to an alternative embodiment, the second guide surfaces 28b, 28c are formed on an outer longitudinal face 29b, 29c respective of a respective longitudinal groove 30b, 30c that comprises each lateral portion 16b, 16c of body 11. Each longitudinal groove 30b, 30c comprises a horizontal longitudinal face 31b, 31c which is formed in a plane parallel to the horizontal longitudinal plane P2. Advantageously, each longitudinal longitudinal face 31b, 31c forms a guiding surface for a longitudinal edge 54 that includes the end portion 50 of the first type illustrated in FIG.

Referring to Figures 3 and 4, the upper portion 16a of the body 11 comprises a first pivot member 32 of the adapter 9 vis-à-vis the connector 8. The first pivot member 32 is provided to provide a connection mechanical pivoting between the adapter 9 and the connector 8. The first pivot member 32 is carried by an inner face of the upper portion 16a of the body 11 so that the first pivot member 32 extends between the side portions 16b, 16c of the body 11, that is to say in the section "U" formed by the body 11. The first pivot member 32 comprises a base 33 which is carried by the inner face of the upper portion 16a of the body 11. The base 33 is itself carrying two fixing walls 34b, 34c which are parallel to each other and parallel to the vertical longitudinal plane P3. Each fixing wall 34b, 34c is provided with a respective strand 35b, 35c. The strands 35b, 35c extend along an axis Ad, called the pivot shaft Ad of the adapter 9 on the connector 8. The pivot shaft Ad is in particular parallel to the pivot axis Ab and orthogonal to the vertical longitudinal plane P3. Advantageously, at least one reinforcing plate 36b, 36c is interposed respectively between the lateral body portion 16b, 16c and the fixing wall 34b, 34c to consolidate the adapter 9. Preferably, and as illustrated, two plates of reinforcement 36b, 36c are interposed respectively between the lateral body portion 16b, 16c and the fixing wall 34b, 34c. In this case, the reinforcing plates 36b, 36c are for example disposed on either side of the pivot shaft Ad.

Referring now to FIG. 7, the connector 8 is extended along the longitudinal axis X of the wiper blade 1. The connector 8 comprises a base 71, which extends in the longitudinal and transverse directions, and a second pivot member 72 which extends, above the base 71, substantially in the vertical direction. The second pivoting member 72 of the connector 8 is provided to collaborate with the first pivoting member 32 of the adapter 9 to provide a robust and reliable mechanical connection between the connector 8 and the adapter 9.

The base 71 comprises means for securing the connector 8 to the wiper blade 1. These securing means take the form of grooves formed in the lower lateral parts of the base 71, each of which delimits, in the lower lateral part of the base 71. , a hook adapted to engage on the wiper blade 1.

The second pivot member 72, advantageously made of material with the base 71, extends above the latter in the vertical direction. The second pivot member 72 comprises side flanks 75, substantially vertical. Each of these side flanks 75 is substantially flat, of small thickness in the transverse direction. The lateral flanks 75 thus delimit, between them, an interior volume of the connector 8. Towards the longitudinal ends of the second pivot member 72, the lateral flanks 75 are interconnected by at least one, and preferably at least one pair of ribs. consolidation 76, which play in particular a role of reinforcement of the second pivot member 72. Through each of the lateral flanks 75 is provided a respective receiving bearing 76 of the strands 35b, 35c of the adapter 9. Each of the receiving bearings 76 a a substantially cylindrical shape and is through, that is to say it extends transversely over the entire thickness of each of the side flanks 75. The inner diameter of each of the receiving bearings 76 is defined with respect to a mean diameter of the strands 35b, 35c of the adapter 9 to which the connector 8 is intended to be connected. The centers of the two receiving stages 76 arranged in the lateral flanks 75 are aligned along the transverse axis Y parallel to the direction of the axis Oy of the orthonormal frame defined above. The transverse axis Y materializes the axis of rotation of the wiper 1 with respect to the drive arm 2, once the strands 35b, 35c are accommodated inside the receiving bearings 76 of the connector 8.

Each of the receiving bearings 76 is placed substantially in the longitudinal direction in the central zone of the corresponding lateral flank 75. According to the embodiment illustrated in FIGS. 7 and 8, the transverse axis Y in which the centers of these receiving bearings 76 are aligned is therefore contained within a transverse plane of symmetry P5 of the connector 8. According to the embodiment illustrated in FIGS. the vertical direction, each of the receiving bearings 15 advantageously extends substantially in the central zone of the second pivoting member 72 of the connector 8. Each of these receiving bearings 76 is thus arranged on one or the other of the lateral flanks 75, in such a way that, on the one hand, material of the lateral flank 75 corresponding above the landing bearing 76 remains, and in such a way that, on the other hand, there remains some material of the lateral flank 75 corresponding below said receiving stage 76, between its lowest point and the upper face of the base 9 of the connector 8.

To allow reception and maintenance of the strands 35b, 35c of the adapter 9 in the connector 8, that is to say, for example simultaneously in the receiving bearings 76, arranged in the lateral flanks 75, an opening input 77 is provided to the right of each of these receiving levels 76, above them. The longitudinal dimension of each of the inlet openings 77 is smaller than the inside diameter of the receiving bearing 76 to which the inlet opening 77 gives access, and in which the inlet opening 77 opens. In other words, each inlet opening 77 forms an access cone to the corresponding receiving bearing 76. Thus, when the strands 35b, 35c of the adapter 9 are simultaneously received in the receiving bearings 76, the strands 35b, 35c are then held in the vertical direction Z.

The second pivoting member 72 of the connector 8 further comprises, within the interior volume delimited by the lateral flanks 75, a guide flange 78 which extends substantially longitudinally and vertically, from the upper face of the base 71. According to the embodiment illustrated by the figures, the guide cheek 78 is placed, in the transverse direction, substantially in the middle part of the interior volume delimited by the two lateral flanks 75. The guide cheek 78 is also advantageously placed in a substantially central in the longitudinal direction of the connector 8.

Substantially central in the longitudinal direction, a guide notch 79 is formed in the upper portion of the guide cheek 78. This guide slot 79 opens to the upper surface of the cheek 78. More specifically, the notch of guide 79 is arranged in such a way that it forms, in its lower part, substantially a half-cylinder centered on the transverse axis Y, and whose diameter is greater than that of said receiving bearings 76. According to the illustrated embodiment this half-cylindrical portion extends vertically towards the upper surface of the guide cheek 78, over a longitudinal dimension substantially equal to its diameter. According to other alternative embodiments, the guide notch 79 may present, in the direction of the upper surface of the guide cheek 78, a slight flare.

The stiffening ribs 70, described above, are formed between the guide cheek 78 and the side flanks 75 to consolidate the second fastener 72. The stiffening ribs 70 are extended within respective planes which are parallel to the plane of transverse symmetry P5.

Claims (15)

An adapter (9) for equipping an end portion (50, 60) of a drive arm (2), the adapter (9) comprising at least one body (11) to which at least one first retractable fastening means (37) adapted to secure the adapter (9) to the end portion (50, 60), the adapter (9) comprising a second retractable fastening means consisting of a first tongue (23b) issuing from the body (11) and movable in rotation about a first rocker axis (Acl) and a second tongue (23c) issuing from the body (11) and movable in rotation about a second rocker axis (Ac2), characterized in that the first retractable fastening means (37) comprises at least one means (80) for maintaining a constant distance (D) separating the first rocker axis (Acl) from the second rocker axis (Ac2). 2. Adapter (9) according to claim 1, wherein the first retractable fastening means (37) comprises a third tongue (17) equipped with at least one stud (19). 3. Adapter (9) according to claim 2, wherein the body (11) comprises an upper portion (16a) and two side portions (16b, 16c) which extend on either side of the upper portion (16a). ). 4. Adapter (9) according to claim 3, wherein the third tongue (17) is derived from the upper part (16a) of the body. 5. Adapter (9) according to claim 3 or 4, wherein the first tongue (23b) is derived from a first lateral portion (16b) of the body (11), and in that the second tongue (23c) is issued a second lateral portion (16c) of the body (11). 6. Adapter (9) according to any one of claims 2 to 5, wherein the third tongue (17) is rotatably mounted about a tilting axis (Ab), the first retractable fastening means (37). being able to assume a nominal locking position or a retracted position. An adapter (9) according to claim 6, wherein the tilt axis (Ab) is orthogonal to at least one of the first flip-flop axis (Acl) and / or the second flip-flop axis (Ac2). 8. Adapter (9) according to claim 6 or 7, wherein, in the nominal position of the first retractable fastening means (37), the holding means (80) extends between a plane passing through the rocker axes (Acl , Ac2) and a plane passing through a first pivot member (32) arranged to allow pivoting of the adapter (9) relative to a connector (8). 9. Adapter (9) according to any one of claims 6 to 8, wherein, in the retracted position of the first retractable fastening means (37), the holding means (80) extends between a plane passing through the axes. a flip-flop (Acl, Ac2) and an end of the adapter (9) where at least the first tongue (23b) extends. 10. Adapter (9) according to any one of the preceding claims, wherein the first retractable fastening means (37) is defined by at least one inner face (20b) which emerges the holding means (80). An adapter (9) according to any one of the preceding claims, wherein the holding means (80) comprises at least one cross member (82) extending transversely to the adapter (9) and having two transverse ends. (83b, 83c) distant from each other by the distance (D). Wiper blade (1) and adapter (9) according to one of the preceding claims. 13. Connecting device (7) formed of a connector (8) and an adapter (9) according to any one of claims 1 to 11. 14. Driving arm (2) comprising an end portion (50, 60) which is equipped with an adapter (9) according to any one of claims 1 to 11. Wiper system comprising a drive arm (2), a connector (8) integral with a wiper blade (1) and an adapter (9) according to any one of claims 1 to 11 connecting to pivoting the connector (8) to the drive arm (2).