Patent Publication Number: US-2023147393-A1

Title: Cover for wiper system connection device

Description:
The field of the present invention is that of wiper systems for motor vehicles. More particularly, the field of the present invention is that of connection means implemented between a wiper arm and a wiper of such a wiper system. 
     Motor vehicles are commonly provided with wiper systems for cleaning the glazed surfaces, and in particular the windshields, thereof. Such wiper systems comprise at least one wiper arm and a wiper driven by the wiper arm. The wiper arm is thus connected to an electric motor of the vehicle and the wiper comprises at least one wiper blade suitable for coming into contact with the glazed surface to be cleaned. A connection device is arranged between the wiper and the wiper arm so that it can drive the wiper. Such a connection device conventionally comprises at least one connector attached to the wiper and at least one adapter connecting the connector, and therefore the wiper to which it is fastened, to the wiper arm. 
     There are currently a multitude of different wiper arms that require as many different connection devices for fastening them to the wiper. “Universal” connection devices are currently sold, suitable for use on most of said wiper arms. 
     A first drawback of said “universal” connection devices lies in the fact that once mounted, the wiper arm received in the adapter of such a connection device remains visible, as does the connector with which the adapter interacts, as well as the different structural elements forming the connection device. It was therefore proposed to add a cover, rotatably mounted on the adapter and, when in the closed position, concealing all of these elements, thus improving the aesthetics of the mounted connection device. This cover further makes it possible to secure the connection between the wiper arm and the adapter. However, said securing function is only possible for a particular type of arm, generally known as a “hook arm”. When the connection device as mentioned above is used with a wiper arm known as a “pin arm”, said cover interferes with the wiper arm, so that said cover must be removed to allow the use of the connecting arm with said “pin arms”. 
     In the connection devices currently implemented, removing said cover is complex. The present invention falls within this context, and proposes a cover for a wiper system connection device that is easy to disengage relative to the adapter of said connection device. 
     One object of the present invention thus relates to a cover for a connection device suitable for being rotatably mounted on an adapter of the connection device, the cover mainly extending between a first end and a second end, the first end comprising at least one bearing suitable for interacting with a rod of the adapter, the cover being configured to be closed in a first rotation direction and opened in a second rotation direction. According to the invention, the bearing comprises at least one tab suitable for allowing the disengagement of the bearing relative to the rod of the adapter, in the first rotation direction. 
     According to the invention, the tab extends towards the outside of the cover. It will be understood that, in order to allow the disengagement of the cover relative to the adapter on which it is rotatably mounted, it must be accessible to the users of the cover according to the invention. 
     According to one feature of the invention, the bearing is in the shape of a hollow cylinder extending along a main axis of extension between a first base and a second base and comprising a peripheral wall that defines a hollow space, an axial opening being made in the peripheral wall, said axial opening extending from the first base to the second base and said axial opening being suitable for receiving the at least one rod of the adapter. In other words, it will be understood that the peripheral wall has a C-shaped profile, the ends of this C shape defining the axial opening made in the peripheral wall. According to this feature, the peripheral wall thus forms a first edge and a second edge that are spaced apart from each other and define the axial opening made in said peripheral wall, the at least one tab emerging from the second edge. Optionally, the peripheral wall can be made from an elastic material, that is, a material capable of returning to its initial shape after it has been subjected to mechanical stress, so that the rod of the adapter can be forced into the hollow space of the bearing through the axial opening made in said peripheral wall and said peripheral wall will then return to its initial position, thus retaining the rod in the hollow space of the bearing. 
     According to one exemplary embodiment of the present invention, the tab is in the shape of a semi-circle a diameter of which is smaller than or equal to a length of the bearing measured between the first base and the second base of the hollow cylinder shape, parallel to the main axis of extension of said cylinder. According to this exemplary embodiment, the tab extends predominantly in a main plane of extension, the tab comprising at least one finger extending predominantly according to an axis transverse to the main plane of extension of the tab. Optionally, the finger of the tab can extend predominantly along an axis perpendicular to the main plane of extension of the tab. According to the invention, the cover comprises at least one retaining means suitable for interacting with the adapter, said at least one retaining means being separate from the bearing. According to the invention, said at least one retaining means can for example comprise a branch emerging from an inner face of the cover and extending to a button, the branch, the inner face of the cover and the button defining a zone for receiving a rib formed on the adapter. 
     Advantageously, the at least one finger forms a gripping region on which the user can exert pressure. Exerting said pressure on the finger of the tab causes a rotational movement of the cover in the first rotation direction, that is, the rotation direction that allows the closing of the cover. As the cover in the closed position is held on the adapter by the at least one retaining means, exerting pressure on the finger ultimately results in the disengagement of the cover, and more particularly of the bearing of said cover, relative to the adapter. 
     The present invention also relates to a connection device suitable for connecting a wiper arm to a wiper, the connection device comprising at least one connector attached to the wiper arm, at least one adapter suitable for connecting the connector to the wiper arm and at least one cover as mentioned above, the cover being rotatably mounted on the adapter. According to the invention, the adapter comprises at least one rod received in the bearing of the cover, the adapter having an aperture facing said rod and the tab of the cover extending at least partially through said aperture. 
     The invention also relates to a wiper system comprising at least one wiper suitable for being rotated by a wiper arm, the wiper arm and the wiper being connected to each other by a connection device as mentioned above. 
     Lastly, the invention relates to a motor vehicle, comprising at least one wiper system according to the invention. 
    
    
     
       Further details, features and advantages will become more clearly apparent from reading the detailed description given below and with reference to the various embodiments illustrated, by way of example, in the following figures: 
         FIG.  1    is an exploded diagrammatic view of a wiper system according to two embodiments of the invention; 
         FIG.  2    is a perspective top view of an adapter of a connection device of the wiper system according to a first embodiment of the invention, suitable for interacting with a wiper arm according to a first exemplary embodiment; 
         FIG.  3    is a perspective view of a cover suitable for being rotatably mounted on the adapter illustrated in  FIG.  2   ; 
         FIG.  4    is a longitudinal cross-sectional view of a longitudinal end of the adapter at which the cover is mounted on said adapter. 
     
    
    
     The features, variants and different embodiments of the invention can be combined with each other, in various combinations, provided that they are not incompatible or mutually exclusive. In particular, variants of the invention can be envisaged that comprise only a selection of the features described below in isolation from the other features described, if this selection of features is sufficient to provide a technical advantage or to distinguish the invention from the prior art. 
     In the figures, the terms longitudinal, transverse, lateral, left, right, above and below refer to the orientation, with reference to a trihedron L, V, T, of a wiper 1 of a wiper system  100  according to the invention. Within this frame of reference, a longitudinal axis L represents a longitudinal direction, a transverse axis T represents a transverse direction, and a vertical axis V represents a vertical direction of the object in question. Within this frame of reference, a transverse cross-section corresponds to a cross-section made in a transverse and vertical plane, that is, in a plane containing the transverse axis T and the vertical axis V of the trihedron. A longitudinal cross-section denotes a cross-section made in a longitudinal and vertical plane, that is, a plane containing the longitudinal axis L and the vertical axis V. In the following description, the terms “wiper arm” and “arm” are used indiscriminately. 
       FIG.  1    illustrates, in the same figure, a system  100  for wiping a glazed surface of a motor vehicle according to first and second exemplary embodiments of the present invention, the first example being illustrated on the right in  FIG.  1    and the second example on the left in  FIG.  1   . As illustrated, the wiper system  100  according to the invention comprises at least one wiper  110  extending along a longitudinal straight line X and suitable for being connected to a wiper arm  120 ,  120 ′ by means of a connection device  200 . The wiper  110  more particularly comprises at least one wiper blade  111  suitable for coming into contact with the glazed surface to be wiped, a member for stiffening the wiper blade  111  (not illustrated) and at least one air deflector  112  suitable for converting pressure applied by an air stream flowing along the glazed surface into a force pressing the wiper  110  against the glazed surface of the motor vehicle. 
     The connection device  200  comprises at least one connector  210  attached to the wiper  110  and at least one adapter  220  suitable for connecting the connector  210 , and therefore the wiper  110  to which it is attached, to the wiper arm  120 ,  120 ′. The wiper arm  120 ,  120 ′ is configured to rotate the wiper  110  to which it is coupled. Said wiper arm  120 ,  120 ′ is thus mechanically connected to an electric motor (not illustrated) arranged on the vehicle and suitable for rotating the wiper arm  120 ,  120 ′. The connection device  200  according to the invention is suitable for allowing a connection between the wiper  110  and the wiper arm  120  according to a first exemplary embodiment and between the wiper  110  and the wiper arm  120 ′ according to a second exemplary embodiment. A distinction is thus made between two separate embodiments of the adapter  220  of the connection device  200 , selected depending on the type of wiper arm to be connected. 
     The features common to the first and second exemplary embodiments of the wiper arm  120 ,  120 ′ and to the first and second embodiments of the adapter  220  will first be described, followed by the features that distinguish said exemplary embodiments and embodiments from each other. 
     The wiper arm  120 ,  120 ′ according to any one of the exemplary embodiments illustrated in  FIG.  1    thus extends predominantly according to a main axis of extension X, between a first end (not illustrated) by which it is connected to the electric motor, and a second end  121 ,  121 ′ by which it is connected to the adapter  220 . 
     The adapter  220  according to any one of the embodiments illustrated extends predominantly in a longitudinal direction D, that is, a direction parallel to the longitudinal axis L of the trihedron illustrated, and comprises at least a first side wall  221  and a second side wall  222  spaced apart from each other and connected to each other by at least one transverse wall, illustrated for example in  FIG.  2   . In other words, a space  225  is formed between the first side wall  221  and the second side wall  222 . As shown, the first side wall  221  is contained in a first vertical and longitudinal plane, that is, a plane containing the longitudinal axis L and the vertical axis V of the trihedron illustrated, and the second side wall  222  is contained in a second vertical and longitudinal plane, separate from the first vertical and longitudinal plane. In other words, it will be understood that the first side wall  221  and the second side wall  222  extend predominantly in two planes parallel to each other. The adapter  220  further comprises at least one through-orifice  224  made in each of its side walls  221 ,  222 . These orifices  224  are suitable for receiving a shaft for the rotation of the wiper arm  120 ,  120 ′ relative to the adapter  220 . In other words, the orifice  224  made in the first side wall  221  and the orifice  224  made in the second side wall  222  are coaxial. 
     According to the first exemplary embodiment illustrated on the right of the figure, the second end  121  of the wiper arm  120  comprises at least two sides  122  connected to each other by a top wall  123 . The wiper arm  120  according to this first exemplary embodiment further comprises at least one shaft  124  emerging from one of the sides  122  of the second end  121  and extending parallel to the transverse axis T of the trihedron illustrated, away from the two sides  122 . More particularly, said shaft  124  emerges from an outer face of the side  122  in question, that is, a face of said side  122  facing in the opposite direction to the other side  122  of the second end  121 . In addition, it comprises at least one bar  125  comprising at least a first portion  126  emerging both from the outer face of the side  122  that also holds the shaft  124  and from the top wall  123  of the second end  121 , and at least a second portion  127  extending transversely to the first portion  126 , towards the wiper  110  when the wiper arm  120  is connected to said wiper  110 . Said wiper arm  120  is suitable for being detachably connected to the adapter  220  according to the first embodiment of the invention. 
     The adapter  220  according to the first embodiment of the invention, also illustrated on the right in  FIG.  1   , comprises all of the features common to the two embodiments described above. According to this first embodiment of the invention, the orifices  224  are suitable for receiving the shaft  124  of the wiper arm  120  according to the first exemplary embodiment, said shaft  124  thus defining the axis of rotation of the wiper arm  120  relative to the wiper  110 . The bar  125  is suitable for pressing against an outer face of one of the side walls  221 ,  222  of the adapter  220 , that is, a face of the side wall in question facing in the opposite direction to the other side wall. More particularly, it will be understood that in the mounted position, the outer face of the side  122  of the second end  121  of the wiper arm  120  from which the shaft  124  emerges is arranged against one of the side walls of the adapter  220 , in this case against the first side wall  221 , the first portion  126  of the bar  125  extends so that it partially covers the space  225  formed between the first side wall  221  and the second side wall  222 , and the second portion  127  of the bar  125  is arranged facing the outer face of the other side wall, in this case of the second side wall  222 . For example, the second portion  127  of the bar  125  can be arranged in contact with said outer face of the second side wall  222 , thus making it possible to stabilize the connection between the wiper arm  120  according to the first exemplary embodiment and the adapter according to the first embodiment of the invention. 
     The wiper arm  120 ′ according to the second exemplary embodiment, illustrated on the left in  FIG.  1   , differs from the wiper arm  120  according to the first exemplary embodiment, in particular in the shape of the second end  121 ′ thereof. The second end  121 ′ of the wiper arm  120 ′ according to the second exemplary embodiment is thus the shape of a hook the curve of which is contained in a longitudinal and vertical plane, that is, a plane containing the longitudinal axis L and the vertical axis V of the trihedron illustrated. Said wiper arm  120 ′ is suitable for being removably connected to the adapter  220  according to the second embodiment of the invention, also illustrated on the left in  FIG.  1   . More particularly, the hook forming the second end  121 ′ of the wiper arm  120 ′ goes around the transverse wall connecting the first side wall  221  to the second side wall  222  of the adapter  220 . In other words, it will be understood that the wiper arm  120 ′ according to the second exemplary embodiment is at least partially received in the space  225  formed between the first and second side walls  221 ,  222  of the adapter  220 . 
     As will be set out in greater detail below, said adapter  220  according to the second embodiment of the invention differs from the adapter  220  according to the first embodiment in that it comprises a cover  223  arranged at one of its longitudinal ends. This cover  223  is rotatably mounted on the adapter  220  and is suitable for adopting at least a first open position and a second closed position,  FIG.  1    illustrating the cover  223  in its closed position. Advantageously, at least one portion of said cover  223 , when it is in the closed position, presses against the hook forming the second end  121 ′ of the wiper arm  120 ′ according to the second exemplary embodiment, thus preventing the movement of the wiper arm  120 ′ along the longitudinal axis L and therefore securing the connection between the wiper arm  120 ′ and the adapter  220 . 
     However, as will be set out in greater detail below, said cover  223  cannot be used for the connection between the connection device  200  according to the invention and the wiper arm  120  according to the first exemplary embodiment. Said cover  223  interferes at least with the sides  122  of the wiper arm  120  according to the first exemplary embodiment so that said cover  223  must be disengaged from the adapter  220  in order to allow the wiper arm  120  according to the first exemplary embodiment to be mounted on said adapter  220 . To this end, the cover  223  comprises disengagement means described below and illustrated in  FIG.  3   . 
     The adapter  220  according to the first embodiment of the invention, that is without the cover and thus suitable for interacting with the wiper arm according to the first exemplary embodiment of the invention, will be described in greater detail with reference to  FIG.  2   . 
     The adapter  220  extends predominantly in the longitudinal direction D between a first longitudinal end  226  and a second longitudinal end  227 . As mentioned above, the adapter  220  is formed by the first side wall  221  and the second side wall  222 , which extend predominantly in two longitudinal and vertical planes parallel to each other. It will be noted that the first longitudinal end  226  is closed by a rear wall  229  of the adapter  220  extending between the first side wall  221  and the second side wall  222 , transversely to said first and second side walls  221 ,  222 . More particularly, according to the example illustrated here, said rear wall  229  of the adapter  220  extends predominantly in a transverse and vertical plane, that is, in a plane containing the transverse axis T and the vertical axis V of the trihedron illustrated. In other words, said rear wall  229  of the adapter  220  extends perpendicularly, or substantially perpendicularly, to the first side wall  221  and to the second side wall  222  of the adapter  220 . Said rear wall  229  is present on the adapter  220  regardless of the embodiment selected, in other words, whether the adapter  220  is used with the wiper arm according to the first or second exemplary embodiment. 
     The second longitudinal end  227  of the adapter  220  is partially closed by a rod  228  that connects the first side wall  221  and the second side wall  222  to each other. It will however be noted that an aperture  246  is formed in the adapter, facing said rod  228 . According to the example illustrated, said rod  228  more particularly has a cylindrical or substantially cylindrical shape, having a transverse axis of revolution R, that is, said axis of revolution R extends parallel to the transverse axis T of the trihedron illustrated. In other words, the rod  228  extends perpendicularly to the first side wall  221  and to the second side wall  222 . Said rod  228  is present on the adapter  220  regardless of the embodiment selected. As described in greater detail below, said rod  228  of the adapter  220  is suitable for being received in a bearing formed on the cover of the adapter when it is used according to the second embodiment. 
       FIG.  2    also shows the transverse wall  230  mentioned above, which also connects the first side wall  221  to the second side wall  222 . According to the example illustrated, said transverse wall  230  extends more particularly parallel to the transverse axis T of the trihedron illustrated and is therefore perpendicular to the first side wall  221  and to the second side wall  222 . As described above, said transverse wall  230  is suitable for being received in the hook forming the second end of the wiper arm according to the second exemplary embodiment. 
     Lastly,  FIG.  2    shows the orifices  224  respectively made in each of the side walls  221 ,  222  of the adapter  220  and suitable for receiving, for example, the shaft of the wiper arm according to the first embodiment. 
     The cover  223  suitable for being rotatably mounted on the adapter when it is used according to the second embodiment of the invention will now be described in greater detail with reference to  FIG.  3   . Said cover  223  has a generally curved shape and extends between a first end  231  and a second end  232 . Said cover  223  has an inner face  233  facing the space formed between the first side wall and the second side wall of the adapter when the cover  223  is mounted on said adapter, and an outer face  234  facing in the opposite direction to the inner face  233 , that is, towards an environment outside the adapter. 
     As mentioned above, the cover  223  is suitable for being rotatably mounted on the adapter. To this end, the cover  223  comprises a bearing  235  suitable for interacting with the rod formed at the second longitudinal end of the adapter, between the first side wall and the second side wall of said adapter. Said bearing  235  emerges from the inner face  233  of the cover  223  and is in the shape of a hollow cylinder extending along a main axis of extension R′ between a first base  236  and a second base  237 . In other words, said bearing  235  comprises a cylindrical peripheral wall  238  that defines a hollow space  239 . As set out in detail below, said hollow space  239  is suitable for at least partially receiving the rod formed on the adapter. In other words, the hollow space  239  delimited by the peripheral wall  238  of the bearing  235  has dimensions that complement the dimensions of the rod of the adapter. Said bearing  235  also has an axial opening  240  made in the peripheral wall  238 , that is, an opening extending between the first base  236  and the second base  237 , parallel to the main axis of extension R′ of the hollow cylinder shape of the bearing  235 . It will therefore be understood that the peripheral wall  238  that defines the hollow space  239  of the bearing  235  has a C-shaped profile, that is, a C shape when viewed in a longitudinal and vertical plane, that is, a plane containing the longitudinal axis L and the vertical axis V of the trihedron illustrated. 
     The axial opening  240  made in the peripheral wall  238  of the bearing  235  is thus delimited by a first edge  241  and a second edge  242  respectively formed by portions of the peripheral wall  238 , in this case by the ends of the C-shaped profile. Said axial opening  240  is configured to allow the insertion of the rod of the adapter into the hollow space  239  of the bearing  235 . In other words, a dimension d1 of the axial opening  240  measured perpendicular to the main axis of extension R′ of the hollow cylinder between the first edge  241  and the second edge  242  defining said axial opening  240  is greater than or equal to a diameter of the rod of the adapter. Advantageously, the peripheral wall  238  of the bearing  235  can be made from an elastic material, that is, a material configured to return to its initial shape after it has been subjected to mechanical stress, so that it can be deformed to allow the insertion of the rod by force into the hollow space  239  and then return to its initial position in order to hold said rod of the adapter in the hollow space  239  of the bearing  235 . In addition, in order to allow the cover  223  to rotate about the rod of the adapter, clearance is provided between the rod of the adapter and an inner face  243  of the peripheral wall  238 , that is, a face of said peripheral wall  238  that is facing towards the hollow space  239 . In other words, it will be understood that a diameter of the hollow space  239  of the bearing  235  is greater than the diameter of the rod of the adapter. These dimensions are illustrated for example in  FIG.  4   . 
     The bearing  235  also comprises a tab  250  extending from the second edge  242  defining the axial opening  240  made in the peripheral wall  238  thereof, towards the outside of the cover  223 . Said tab  250  is configured to allow the disengagement of the cover  223  once it is mounted on the adapter. Said tab  250  is more particularly in the shape of a semi-circle a diameter d2 of which is less than or equal to a length of the bearing  235 , that is, a dimension of said bearing  235  measured along its main axis of extension R′ between the first base  236  and the second base  237  of its cylinder shape. The tab  250  also comprises a finger  251  extending in a plane transverse to a main plane of extension of the tab  250 , that is, a plane in which said tab  250  predominantly extends. According to a particular example of the invention, the finger  251  can extend along an axis perpendicular to the main plane of extension of the tab  250 . 
     The cover  223  also comprises at least one reinforcing rib  244  emerging from the peripheral wall  238  of the bearing  235  and extending following the curve of the cover  223 . According to the example illustrated, the cover  223  more particularly comprises two reinforcing ribs  244  extending predominantly in two parallel planes. Said reinforcing ribs  244  help to maintain the structure of the cover  223  and also form the portion of the cover  223  abutting against the hook of the wiper arm according to the second exemplary embodiment mentioned above. 
     Lastly, the cover  223  comprises retaining means  260  that help to hold it on the adapter. Said retaining means  260  comprise at least one branch  261  extending in a direction parallel to the vertical axis V of the trihedron illustrated between at least a first end  262  by which it emerges from the inner face  233  of the cover  223  and a second end in the shape of a button  263 . As can be seen in  FIG.  4    for example, the at least one branch  261 , the button  263  forming the second end thereof and the inner face  233  of the cover  223  from which the branch  261  emerges together define a region  264  for receiving a rib formed on one of the side walls of the adapter. In other words, together with the bearing  235 , said retaining means help to hold the cover  223  on the adapter  220 . According to the example shown, the retaining means  260  are more particularly formed by two branches  261  identical to the branch described above, that is, each of the branches  261  emerges from the inner face  233  of the cover  223  and extends to a second end formed by a button  263 , each branch  261  and each button  263  defining, with the inner face  233  of the cover  223 , a region  264  for receiving a rib formed on the adapter. In addition, it will be noted that said two branches  261  extend parallel to each other. 
       FIG.  4    is a longitudinal cross-sectional view of the second end  227  of the adapter  220  on which the cover  223  is mounted. In other words,  FIG.  4    illustrates a longitudinal cross-section of the second end  227  of the adapter  220  according to the second embodiment of the invention. 
     As mentioned above, the cover  223  is rotatably mounted on the rod  228  of the adapter  220  and is configured to adopt at least a closed position, illustrated in  FIG.  4   , in which it forms a stop against the longitudinal movement of the hook forming the second end of the wiper arm according to the second exemplary embodiment of the invention, and at least an open position in which it permits the insertion of said hook forming the second end of the wiper arm according to the second exemplary embodiment of the invention. The cover  223  can thus be closed in a first rotation direction S1 and opened in a second rotation direction S2 opposite to the first rotation direction S1. 
     As described above, said rotation is in particular possible because the rod  228  has a diameter d 3  smaller than the diameter d 4  of the hollow space  239  in which it is received. In addition,  FIG.  4    shows one of the ribs  245  formed on the adapter  220 , and more particularly on the inner faces of each of the side walls  221 ,  222  of said adapter  220 , received in one of the two receiving regions  264  formed by the retaining means  260 . 
     When the cover  223  is in its closed position, the tab  250  of the cover  223  extends beyond the adapter  220 , that is outside said adapter  220 . More particularly, said tab  250  extends through the aperture  246  formed in the adapter  220 , towards the outside of the cover  223 . In particular, at least the finger  251  extends outside the adapter  220  and forms a gripping region, on which a user can exert pressure. It will be understood that applying pressure to said finger  251  of the tab  250  allows the user to disengage the cover  223  from the rod  228 . More particularly, the pressure exerted on said finger  251  tends to continue the rotation of the cover  223  in the first rotation direction S1, that is, the rotation direction making it possible to close said cover  223 . As the rotation of the cover  223  in this first rotation direction S1 is prevented by the interaction between the ribs  245  and the receiving regions  264  of the retaining means  260 , the pressure exerted on the finger forces the cover  223 , and more particularly the bearing  235  of said cover  223 , to disengage from the rod  228 . It is thus particularly easy to remove the cover  223  from the adapter  220 , allowing simple, quick adaptation of the connection device  200  according to the invention to different types of wiper arm. 
     Lastly,  FIG.  4    shows the orifices  224  made in the side walls  221 ,  222  of the adapter  220  and suitable for receiving the shaft of the wiper arm according to the first exemplary embodiment. It can be seen clearly in  FIG.  4    that said wiper arm according to the first exemplary embodiment would interfere with the cover  223  so that the cover  223  must be removed to allow the use of the connection device according to the invention with this type of wiper arm. 
     It will be understood from the above that the cover  223  is removable so as to make it possible to secure the connection between the wiper arm  120 ′ according to the second exemplary embodiment and the adapter  220  according to the second embodiment, and to make it possible to connect the wiper arm  120 ′ according to the second exemplary embodiment to said adapter  220 . As has just been described, the present invention allows the simple disengagement of the cover  223  relative to the adapter  220  so that it can easily be used with at least the two types of arm that have just been described. 
     It will be understood from the above that the present invention thus proposes a connection device for connecting a wiper to a wiper arm that can easily be adapted for use with at least two different types of wiper arm, it being understood that the description that has just been given does not limit the scope of the present invention. The use of the connection device with wiper arms produced according to exemplary embodiments not described herein can in particular be envisaged without departing from the scope of the present invention.