Wiper system wipers

Abstract

The present invention relates to a wiper (8) of a wiper system (2) for a vehicle (1), comprising at least one wiper blade (24) held by a support and configured to wipe a glazed surface (4) of the vehicle (1), the wiper (8) comprising a spoiler (22) configured to be connected to a washing system (12) for dispersing a washing fluid, the spoiler (22) comprising a body part (32) in which a spray manifold (18) for the washing fluid is provided, configured to be connected to the washing system (12), the spray manifold (18) extending along a main extension direction (A) of the spoiler (22) and comprising at least one row (48) of spray holes (30).

Description

[Technical Field]

[0001] The present invention relates to the field of wiper systems for glazed surfaces, in particular for the windshield or rear window of a vehicle. More particularly, the invention relates to a wiper of such a wiper system in conjunction with a washing system. [Background technology]

[0002] Generally, vehicles include a glazed surface located at the front of the vehicle, thereby allowing the driver to see the environment in front of the vehicle. The glazed surface must be transparent and optically neutral so that the driver can clearly see the environment in front of the vehicle. Due to its location, whether the vehicle is stationary or traveling on the road, the glazed surface is exposed to weather conditions, such as rain, as well as certain particles or dirt, which at least partially obstruct the driver's view of the environment in front of the vehicle. To remove these various elements, the vehicle includes a wiper system that can wipe away, and thus remove, water and various elements present on the glazed surface of the vehicle outside of the glazed surface of the vehicle.

[0003] It is known practice that such wiper systems include at least an arm and a wiper, the arm being fixed at one end to the vehicle and holding the wiper at its opposite end. The arm is more particularly connected to the shaft of a motor installed in the vehicle, and the arm can be driven in a reciprocating motion around the main extension direction of the shaft. The arm itself drives the wiper against the glazed surface of the vehicle to remove water and elements obstructing the driver's view.

[0004] It is known practice to equip these vehicles with washing systems configured to spray washing fluid against the vehicle's glass surfaces to facilitate wiping off particles or dirt present on the glass surfaces. Such washing systems may include washing fluid spray nozzles mounted on the hood of the vehicle as close as possible to the glass surfaces to be cleaned, and / or may include spray manifolds mounted directly on the arms and / or wipers of the wiper system to spray the washing fluid even closer and more evenly. Such spray manifolds include an array of washing fluid spray holes.

[0005] It is a known practice to provide rows of spray holes along the wiper. In this way, the rows of spray holes distribute cleaning liquid over the entire area of ​​the glass surface to be wiped as the wiper passes. However, the shape of the spray holes, along with their distribution along the wiper, does not provide optimal wetting of the glass surface, which results in streaks of cleaning liquid on the glass surface after the wiper has passed, or an absence of liquid in certain areas of the glass surface.

[0006] The present invention falls within this context by proposing a system including a spray manifold that makes it possible to improve the wetting of glazed surfaces compared to already existing systems equipped with a spray manifold. Summary of the Invention

[0007] The main subject of the present invention is a wiper of a wiper system for a vehicle, comprising at least one wiper blade held by a support and configured to wipe the glass surface of the vehicle, the wiper comprising a spoiler configured to be connected to a washing system for dispersing a washing fluid, the spoiler comprising a body provided with a spray manifold for the washing fluid, the spray manifold configured to be connected to the washing system, the spray manifold extending in the main extension direction of the spoiler and comprising at least one row of spray holes, the number of spray holes per row being between 1 and 60 over a portion of the spoiler of 10 mm measured in the main extension direction of the spoiler, and the spray holes in one row being spaced apart at intervals of 0.15 to 10 mm in the main extension direction of the spoiler.

[0008] In other words, a spoiler for a wiper according to the present invention is configured to be connected to a washing system for spraying a washing fluid, the spoiler comprising: a main body part which, on the one hand, demarcates a housing for a support for the wiper blade; and on the other hand, the spoiler comprises a fin protruding opposite the housing; the spoiler comprises a spray manifold for the washing fluid arranged through the main body part; the spray manifold comprises at least one distribution pipe extending in a main extension direction of the spoiler; the distribution pipe is configured to be connected to the washing system; the spray manifold comprises a plurality of channels distributed along the main extension direction of the spoiler; the spray manifold comprises a plurality of spray holes, each of the channels extending between the distribution pipe and a spray hole of the plurality of spray holes; the number of spray holes per row is 1 to 60 over a portion of the spoiler of 10 mm measured in the main extension direction of the spoiler; and the spray holes in one row are spaced apart at intervals of 0.15 to 10 mm in the main extension direction of the spoiler.

[0009] It will be understood from the above that a wiper comprises, on the one hand, a spoiler and, on the other hand, a wiper blade intended to be in contact with the glazed surface of the vehicle, the wiper blade comprising a support intended to interact with a housing delimited by the body of the spoiler in such a way that the wiper blade is fixed to the spoiler.

[0010] The spray manifold includes a distribution tube and a plurality of channels extending radially from the distribution tube toward the outside of the spoiler, each channel extending between the distribution tube and a spray hole such that cleaning fluid flowing in the distribution tube also flows through each channel toward a dedicated spray hole.

[0011] Furthermore, according to the present invention, the number of channels, and therefore the number of spray holes, between 1 and 60, as well as the spacing between spray holes in the same row, between 0.15 and 10 mm, optimizes the distribution of the cleaning fluid to the glass surfaces of the vehicle. Specifically, the spray holes are therefore arranged along the entire spoiler to ensure regular distribution of the cleaning fluid along the entire spoiler.

[0012] Thus, the best compromise between cleaning quality (ie wetting) and cleaning fluid consumption is obtained.

[0013] According to an optional feature of the invention, the number of spray holes per row is between 1 and 50 over a 10 mm portion of the spoiler measured in the main direction of extension of the spoiler.

[0014] According to an optional feature of the invention, the number of spray holes per row is between 1 and 40 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler.

[0015] According to an optional feature of the invention, the number of spray holes per row is between 1 and 30 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler.

[0016] According to an optional feature of the invention, the number of spray holes per row is between 1 and 20 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler.

[0017] According to an optional feature of the invention, the number of spray holes per row is between 1 and 10 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler.

[0018] According to an optional feature of the invention, the number of spray holes per row is between 1 and 5 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler.

[0019] According to an optional feature of the invention, the number of spray holes per row is between 3 and 60 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler.

[0020] According to an optional feature of the invention, the spray holes in a row are spaced apart at intervals of 0.75 to 10 mm in the main extension direction of the spoiler.

[0021] According to an optional feature of the invention, the spray holes in a row are spaced apart at intervals of 1.0 to 10 mm in the direction of the main extension of the spoiler.

[0022] According to an optional feature of the invention, the spray holes in a row are spaced 1.5 to 10 mm apart in the main extension direction of the spoiler.

[0023] According to an optional feature of the invention, the spray holes in a row are spaced apart at intervals of 2.8 to 10 mm in the direction of the main extension of the spoiler.

[0024] According to an optional feature of the invention, the spray holes in a row are spaced apart at intervals of 0.75 to 9 mm in the direction of the main extension of the spoiler.

[0025] According to an optional feature of the invention, the spray holes in a row are spaced 1 to 8 mm apart in the main extension direction of the spoiler.

[0026] According to an optional feature of the invention, the number of spray holes per row is 1 to 10 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler, and the spray holes in a row are spaced 1.5 to 10 mm apart in the main extension direction of the spoiler.

[0027] According to an optional feature of the invention, the number of spray holes per row is 1 to 5 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler, and the spray holes in a row are spaced 2.8 to 10 mm apart in the main extension direction of the spoiler.

[0028] In accordance with another optional feature of the invention, the spray holes may be 0.002 mm 2 ~0.070mm 2 It has a transit area of

[0029] 0.002mm 2 ~0.070mm 2 The passage area promotes atomization of the cleaning fluid, which increases the wetting of the cleaning fluid on the vehicle's glass surfaces.

[0030] According to an optional feature of the invention, at least one spray hole in at least one row of spray holes has a generally circular shape.

[0031] In other words, at least one channel of the plurality of channels extends from the distribution tube to the spray hole having a circular shape.

[0032] According to an optional feature of the invention, at least one spray hole in at least one row of spray holes has a generally rectangular shape.

[0033] In other words, at least one channel extends from the distribution tube to the spray hole having a rectangular shape.

[0034] According to an optional feature of the invention, at least one spray hole in at least one row of spray holes has a star shape.

[0035] In other words, at least one channel extends from the distribution pipe to the spray holes having a star shape.

[0036] According to another optional feature of the invention, the multiple channels have the same area between the distribution pipe and the spray holes dedicated to each channel.

[0037] In accordance with another optional feature of the invention, at least one spray hole has a different shape than another spray hole.

[0038] According to another optional feature of the invention, the spray manifold includes only one row of spray holes aligned in the main extension direction of the spoiler.

[0039] In accordance with another optional feature of the invention, the spray manifold includes at least two separate rows of spray holes aligned in a major extension direction of the spoiler.

[0040] According to another optional feature of the invention, the plurality of spray holes includes a first set of spray holes having a first shape and a second set of spray holes having a second shape, the first set of spray holes being distributed along a main extension direction of the spoiler alternately with the second set of spray holes.

[0041] According to another optional feature of the invention, the spray manifold includes a distribution pipe extending in a main extension direction of the spoiler, and a plurality of channels distributed along the main extension direction of the spoiler, each of the channels extending between the distribution pipe and a spray hole of the plurality of spray holes.

[0042] According to another optional feature of the invention, the plurality of channels includes at least two separate rows of channels aligned in a primary extension direction of the spoiler, it being noted that the number of separate rows of channels is at least two and may be three, four, or more.

[0043] According to another optional feature of the invention, the spray manifold includes a plurality of channels distributed along a major extension direction of the spoiler, the plurality of channels including at least two separate alignments of channels aligned in a direction transverse to the major extension direction of the spoiler.

[0044] In other words, the plurality of channels includes at least two separate alignments of channels aligned in a direction transverse to the primary extension direction of the spoiler.

[0045] According to another optional feature of the invention, the plurality of channels includes at least two separate alignments of channels aligned in a direction perpendicular to the main extension direction of the spoiler.

[0046] According to another optional feature of the invention, the spray manifold includes a plurality of rows of channels radially distributed around the distribution pipe over an angular sector of between 5° and 30°, the angular sector facing the area of ​​the glazed surface to be wiped by the wiper.

[0047] In accordance with another optional feature of the invention, at least some of the plurality of channels are staggered across the body of the spoiler.

[0048] According to another optional feature of the invention, the spray holes of at least one row of spray holes are uniformly distributed along the main extension direction of the spoiler.

[0049] In other words, the channels are uniformly distributed along the main extension direction of the spoiler, the term "uniform" meaning that the channels form a pattern that is repeated several times along the main extension direction of the spoiler, the pattern being formed by at least one spray hole.

[0050] According to another optional feature of the invention, the spray holes of at least one row of spray holes are irregularly distributed along the main extension direction of the spoiler.

[0051] In other words, the channels are irregularly distributed along the main extension direction of the spoiler.

[0052] According to another optional feature of the invention, the total area of ​​the spray holes is less than 1 mm 2 ~3mm 2 The total spray hole area is equal to the sum of the areas of all the spray holes.

[0053] According to a first example, the spray manifold may include a specific number of channels or spray holes spaced at defined intervals.

[0054] According to a second example, the spray manifold may include a greater number of channels or spray holes than in the first example, with the channels or spray holes spaced closer together than those of the holes in the first example.

[0055] According to a third example, the spray manifold may include a smaller number of channels or spray holes than in the first example, with the channels or spray holes spaced apart at greater intervals than those of the holes in the first example.

[0056] According to another optional feature of the invention, the wiper blade support is located within the housing of the spoiler.

[0057] Further features, details and advantages of the present invention will become more clearly apparent from reading the following description, with reference to the accompanying schematic drawings, and from some exemplary embodiments given by way of non-limiting indication. [Brief explanation of the drawings]

[0058] [Figure 1] 1 is a diagram schematically illustrating a vehicle equipped with a wiper system including a wiper according to the present invention; [Figure 2] 1 is a diagram showing details of a wiper system according to the present invention; [Figure 3] 1 is a perspective view of a wiper spoiler according to the present invention; [Figure 4]FIG. 4 is a diagram showing details of the spoiler shown in FIG. 3. [Figure 5] FIG. 4 depicts a first embodiment of multiple spray holes of the spoiler shown in FIG. 3. [Figure 6] FIG. 4 depicts a second embodiment of multiple spray holes of the spoiler shown in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0059] The features, variants, and different embodiments of the invention may be combined with one another in various combinations, provided they are not incompatible or mutually exclusive. In particular, it is possible to conceive of variants of the invention that include only a selection of the features described hereinafter, separately from other features described, where such selection of features confers a technical advantage and / or is sufficient to distinguish the invention from the prior art.

[0060] In the following description, the terms "longitudinal", "lateral" and "vertical" refer to the orientation of the spoiler according to the invention. The longitudinal direction corresponds to the main extension direction of the spoiler, this longitudinal direction being parallel to the longitudinal axis L of the coordinate system L, V, T shown in the figures. The vertical direction corresponds to the direction in which the spoiler fins extend, this vertical direction being parallel to the vertical axis V of the coordinate system L, V, T, this vertical axis V being perpendicular to the longitudinal axis L. Finally, the transverse direction corresponds to the direction parallel to the transverse axis T of the coordinate system L, V, T, this transverse axis T being perpendicular to the longitudinal axis L and the vertical axis V.

[0061] As shown in Figure 1, a vehicle 1 is equipped with a wiper system 2 arranged on a glass surface 4 of the vehicle 1. The wiper system 2 includes at least a first wiper device 6 consisting of a first wiper 8 and a first wiper arm 10. The first wiper arm 10 is fixed at one end to the vehicle 1 and at the other end to the first wiper 8, which is arranged on the glass surface 4 of the vehicle 1. More specifically, the first wiper arm 10 is fixed to a drive arm that constitutes an electric motor, the drive arm and the electric motor not being shown in all of the figures.

[0062] The electric motor tends to drive the first wiper arm 10 in a reciprocating motion, which in turn drives the first wiper 8 in a reciprocating motion over the glass surface 4 of the vehicle 1. By virtue of this motion, the first wiper 8 scrubs and cleans the glass surface 4 of the vehicle 1. The wiper system 2 includes a second wiper device 6 having the same features as the first wiper device 6, including a second wiper 8 and a second wiper arm 10.

[0063] Furthermore, the term "wiper device 6" may equally refer to the first wiper device 6 with respect to the second wiper device 6. Similarly, the term "wiper arm 10" may equally refer to the first wiper arm 10 with respect to the second wiper arm 10, while the term "wiper 8" may also equally refer to the first wiper 8 with respect to the second wiper 8.

[0064] In addition, the components of the second wiper device 6 are identical to the components of the first wiper device 6. Hence, the following description of the features of the components of the first wiper device 6 is applicable to the components of the second wiper device 6, in particular for the second wiper 8 and the second wiper arm 10.

[0065] The vehicle 1 is also equipped with a washing system 12 that sprays washing fluid onto the glass surface 4 of the vehicle 1 to optimize wiping of the glass surface 4 by the wiper system 2. To this end, the washing system 12 includes a pump 14 that advances washing fluid from a storage container through a distribution network 16 towards at least one spray manifold 18. The distribution network 16 connects the pump 14 to at least a first spray manifold 18 that is provided on a first wiper 8. The distribution network 16 connects the pump 14 to the first spray manifold 18 as well as to a second spray manifold 18, which is disposed on the second wiper 8. In the remainder of the description, the term “spray manifold 18” refers equally to one and / or the other of the first and second spray manifolds 18.

[0066] As shown schematically in Figures 1 and 2, the wiper 8 according to the present invention comprises at least one spoiler 22 and a wiper blade 24, both of which extend mainly in the longitudinal direction L. The wiper blade 24 is the element of the wiper 8 that is in direct contact with the glass surface 4 of the vehicle 1. The spoiler 22 is the element that optimizes the aerodynamics of the wiper 8 by using the force generated by the wind when the vehicle 1 is moving to press the wiper blade 24 and keep it in contact with the glass surface 4 of the vehicle 1. Furthermore, the wiper blade 24 comprises a support that is intended to be held by the spoiler 22, which in turn comprises a housing 25 for the support. It should be noted that the support of the wiper blade 24 interacts with the housing 25 of the spoiler 22 to secure the wiper blade 24 to the spoiler 22.

[0067] The spoiler 22 will now be described in more detail with particular reference to Figures 2-6.

[0068] 2 to 4 more specifically illustrate the spoiler 22 of the wiper 8 according to the present invention. The wiper 8 includes at least a spray manifold 18 for spraying the cleaning fluid, the spray manifold 18 including at least one distribution pipe 26 for the cleaning fluid and a plurality of channels 28 extending between the distribution pipe 26 and a plurality of spray holes 30. More specifically, the distribution pipe 26 is connected to the distribution network 16 of the washing system 12, and the pump 14 of the latter forces a flow of the cleaning fluid into the distribution pipe 26. The cleaning fluid then flows from the distribution pipe 26 through the channels 28 towards the spray holes 30 assigned to each channel 28. It should be noted that the cleaning fluid is sprayed onto the glass surface 4 of the vehicle 1 at the spray holes 30. In this configuration, the pump 14 of the washing system 12 makes it possible to force a flow of the cleaning fluid from the storage container 20 to the spray holes 30.

[0069] A more detailed description of the spray manifold 18 is provided after the general description of the spoiler 22 set forth below with reference to FIGS.

[0070] The spoiler 22 includes a body portion 32 consisting of at least one top wall 34 from which at least one fin 36 and the spray manifold 18 protrude.

[0071] 2-4, the body portion 32 includes at least two side walls 38 and a top wall 34, which serve to define a housing 25 for a support for the wiper blade 24. More specifically, the top wall 34 extends primarily in a plane parallel to the longitudinal direction L and the lateral direction T. The side walls 38 each extend in a plane parallel to the longitudinal direction L and the vertical direction V, and each extend from one of the lateral ends of the top wall 34. Each of the side walls 38 extends from the top wall 34 facing away from the fin 36 toward the other side wall 38.

[0072] In other words, the side walls 38 and the top wall 34 of the spoiler 22 extend such that a section of the side walls 38 and a section of the top wall 34 have a "U" shape, as seen in a plane perpendicular to a main direction of extension A of the spoiler 22, which main direction of extension A is substantially parallel to the longitudinal direction L. It should be noted that the side walls 38 form the arms of the "U" and that the top wall 34 forms the bottom of the "U".

[0073] Each of the side walls 38 has at one free end a fixing claw 40 which extends from said free end towards the other fixing claw 40. Each fixing claw 40 serves, on the one hand, to delimit the housing 25 for the wiper blade support and, on the other hand, to fix the support of the wiper blade 24 to the spoiler 22.

[0074] The fin 36 includes a base 42 that connects a portion of the fin 36 that extends to the upper wall 34 in a plane parallel to the longitudinal direction L and the vertical direction V. More specifically, the fin 36 has a curved portion 44 at its base 42 that connects the upper wall 34 to a free end of the fin 36, thus joining the main extension plane of the upper wall 34 with the main extension plane of the fin 36. The curved portion 44 at the base 42 of the fin 36 provides the spoiler 22 with an aerodynamic advantage that allows the wiper blade 24 to remain pressed against the glass surface 4 of the vehicle 1, particularly when the vehicle is moving.

[0075] As can be seen more particularly in Figures 2-4, the spray manifold 18 extends primarily in a primary extension direction A through the body portion 32 of the spoiler 22, for example, on one of the side walls 38 of the body portion 32.

[0076] In the embodiment of FIG. 2, the spray manifold 18 includes a single row of spray holes 30 .

[0077] In the embodiment of FIGS. 3-6, the spray manifold 18 includes at least two rows of spray holes 30.

[0078] According to the present invention, the number of spray holes 30 per row 48 is between 1 and 60 over a 10 mm spoiler portion measured in the main extension direction A of the spoiler 22, and the spray holes 30 of the row 48 are spaced apart at intervals of between 0.15 and 10 mm in the main extension direction A of the spoiler 22.

[0079] This arrangement optimizes the distribution of cleaning fluid to the vehicle's glass surfaces. Specifically, the spray holes 30 are therefore positioned along the entire spoiler 22 to ensure an even distribution of cleaning fluid along the entire spoiler 22.

[0080] Thus, the best compromise between cleaning quality (ie wetting) and consumption of cleaning fluid is obtained.

[0081] According to an optional feature of the invention, the number of spray holes per row is 1 to 10 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler, and the spray holes in a row are spaced 1.5 to 10 mm apart in the main extension direction of the spoiler.

[0082] According to an optional feature of the invention, the number of spray holes per row is 1 to 5 over a 10 mm portion of the spoiler measured in the main extension direction of the spoiler, and the spray holes in a row are spaced 2.8 to 10 mm apart in the main extension direction of the spoiler.

[0083] In accordance with an optional feature of the present invention, at least one of the spray holes 30 of the spray manifold 18 is 0.002 mm 2 ~0.070mm 2 The cleaning liquid passes through an area of ​​100 mm.

[0084] 0.002mm 2 ~0.070mm 2 The passage area promotes atomization of the cleaning fluid, which also increases the wetting of the cleaning fluid on the vehicle's glass surfaces.

[0085] In accordance with an optional feature of the invention, all of the channels in the 10 mm long portion of the spoiler are 0.002 mm 2 ~0.070mm 2 The cleaning liquid passes through an area of ​​100 mm.

[0086] According to an optional feature of the invention, 0.002 mm 2 ~0.070mm 2 The area of ​​the channel 28 having a surface area of ​​0.002 mm optimizes atomization of the cleaning liquid as it flows through the channel 28 from the distribution pipe 26 towards the spray holes 30. The cleaning liquid flows in a liquid state at the inlet of the channel 28 in the direction of the flow of the cleaning liquid within the channel 28, and the cleaning liquid in a liquid state then flows to a surface area of ​​0.002 mm before being discharged in the form of a mist at the spray holes 30. 2 ~0.070mm 2It should be understood from the above that the spray is atomized in an area having a surface area of ​​1000 nm. Furthermore, this atomization increases the wettability of the glass surface 4 of the vehicle 1, particularly in the area to be wiped by the wipers 8.

[0087] 0.002mm 2 ~0.070mm 2 The passage area of ​​the channel 28 is preferably close to the spray holes 30. It should be noted that the atomization effect provided by this area of ​​the channel 28 is optimized when this area is located as close as possible to the spray holes 30.

[0088] According to an optional feature of the invention, 0.002 mm 2 ~0.070mm 2 The passage area of ​​the channel 28 coincides with the spray hole 30. In other words, if the spray hole 30 is 0.002 mm 2 ~0.070mm 2 The cleaning liquid passes through an area of ​​100 mm.

[0089] According to the example illustrated herein, each channel 28 of the plurality of channels 28 has a diameter of 0.002 mm. 2 ~0.070mm 2 The cleaning liquid passing area is 100 mm.

[0090] According to an optional feature of the invention, at least one of the channels 28 has a diameter of 0.002 mm 2 ~0.070mm 2 The cleaning liquid passing area is 100 mm.

[0091] Furthermore, as explained above, the number of channels 28, from 1 to 60, and therefore the number of spray holes 30, optimizes the distribution of the atomized cleaning fluid to the vehicle's glass surface 4. Specifically, the spray holes 30 are therefore arranged along the entire spoiler 22 to ensure regular distribution of the atomized cleaning fluid along the entire spoiler 22. It will be appreciated from the above that the distribution of the atomized cleaning fluid along the entire spoiler 22 promotes better wetting along the entire spoiler 22 and allows for uniform distribution of the spoiler 22, thereby preventing marks from being left on the vehicle's glass surface 4.

[0092] Such a combination of the features of the multiple channels 28 or spray holes 30 therefore makes it possible, on the one hand, to optimize the phenomenon of atomization of the cleaning liquid along the spoiler 22, and, on the other hand, to optimize better wetting of the glazed surface 4 of the vehicle 1 along the entire spoiler 22 as well.

[0093] According to one aspect of the present invention, the total area of ​​the spray holes 30 is 1 mm 2 ~3mm 2 The term "total area" refers to the sum of the traverse areas of all of the spray holes 30 of the spray manifold 18.

[0094] According to a first exemplary embodiment of the present invention, the spray manifold 18 may include a specified number of channels 28 or spray holes 30 spaced apart at a specified interval, for example, between 0.15 mm and 10 mm.

[0095] According to a second example, the spray manifold 18 may include a greater number of channels 28 or spray holes 30 than in the first example, with the channels 28 or spray holes 30 spaced closer together than the holes 30 in the first example, i.e., for example, spaced apart by less than 0.15 mm.

[0096] According to a third example, the spray manifold 18 may include a smaller number of channels 28 or spray holes 30 than in the first example, and the channels 28 or spray holes 30 are spaced apart at greater intervals than the holes 30 in the first example, i.e., for example, at intervals greater than 10 mm.

[0097] 2 to 4, the channels 28 are uniformly distributed along the main extension direction A of the spoiler 22. The term "uniform" means that the channels 28 form a pattern that is repeated several times along the main extension direction A of the spoiler 22, and the pattern is formed by at least one spray hole 30.

[0098] 2 to 4, the pattern of channels 28 has the shape of slots extending at least partially radially around the distribution pipe 26. This slot-like pattern is replicated at regular intervals along the distribution pipe 26, i.e. along the main extension direction A of the spoiler 22.

[0099] According to another alternative of the present invention, the plurality of channels 28 are irregularly distributed along the main extension direction A of the spoiler 22. It will be appreciated that the pattern formed by at least one channel 28 is not replicated along the main extension direction A, and a first distance separating two adjacent first channels 28 is different from a second distance separating two adjacent other channels 28.

[0100] In addition, the plurality of spray holes 30, and consequently the plurality of channels 28, are, according to an optional feature of the invention, radially distributed around the distribution pipe 26 over an angular sector of between 5° and 30°. This angular sector corresponds to the sector facing the area of ​​the glazed surface 4 to be wiped by the wipers 8. This angular sector is measured, for example, from the main extension plane of the extension of the side wall 38, which plane is parallel to the longitudinal direction L and the vertical direction V. In this way, the cleaning fluid is sprayed directly onto the glazed surface 4 of the vehicle 1 at the spray holes 30, thus limiting the loss of the cleaning fluid in the environment outside the vehicle 1.

[0101] The first embodiment of the invention illustrated in FIG. 5 will now be described in more detail before describing the second embodiment of the invention with reference to FIG.

[0102] According to a first embodiment of the present invention, and as shown in FIG. 5, at least one channel 28 of the plurality of channels 28 extends from the distribution pipe 26 to a spray hole 30 having a circular shape.

[0103] The channel 28 extends in the form of a hollow cylinder between the distribution pipe 26 and the spray holes 30. It should therefore be understood that the channel 28 has a single, uniform area between the distribution pipe 26 and the spray holes 30.

[0104] According to an alternative embodiment of the invention, the channel 28 extends in the form of a cone between the distribution pipe 26 and the spray holes 30. The passage area of ​​the channel 28 may therefore be open towards the outside, i.e. the passage area of ​​the channel 28 tends to increase as it approaches the spray holes 30. Conversely, the passage area of ​​the channel 28 may be closed towards the outside, i.e. the passage area of ​​the channel 28 tends to decrease as it approaches the spray holes 30.

[0105] In accordance with an optional feature of the present invention, the multiple channels 28 have the same area between the distribution pipe 26 and the spray holes 30 dedicated to each channel 28. More particularly, each channel 28 has a similar shape and extends between the distribution pipe 26 and the spray holes 30 having the same shape.

[0106] Additionally, and as shown in FIG. 5, the plurality of channels 28 includes at least two alignments 46 of channels 28 aligned in a direction transverse to the primary extension direction A of the spoiler 22 .

[0107] It should be noted that at least two first channels 28 are aligned in a direction intersecting the main extension direction A to form a first alignment 46, and at least two other channels 28 are aligned in a direction intersecting the main extension direction A to form a second alignment 46, the first alignment 46 and the second alignment 46 extending parallel to each other.

[0108] According to an optional feature of the present invention, the first alignment 46 and the second alignment 46 extend perpendicular to the main extension direction A of the spoiler 22 .

[0109] 5 , at least some of the channels 28 are distributed in a staggered manner across the body portion 32 of the spoiler 22. The term “staggered” means that a first group of the spray holes 30 are aligned in a first direction parallel to the primary extension direction A, and a second group of the spray holes 30 are aligned in a second direction parallel to the primary extension direction A, the first direction being different from the second direction. In other words, the spray holes 30 are aligned with each other while being radially offset from each other.

[0110] A second embodiment of the invention, shown in Figure 6, will now be described in more detail.

[0111] According to a second embodiment of the present invention, and as shown in Figure 6, at least one channel 28 extends from the distribution pipe 26 to the spray hole 30, which has a rectangular shape. In this configuration, the channel 28 may extend in the form of a hollow rectangular parallelepiped having the same area all the way from the distribution pipe 26 to the spray hole 30. However, a channel 28 extending in the form of a hollow rectangular parallelepiped with the channel 28 area varying between the distribution pipe 26 and the spray hole 30 does not depart from the scope of the present invention.

[0112] 6 , the plurality of channels 28 includes at least two rows 48 of channels 28 that are aligned with the primary extension direction A of the spoiler 22. In this manner, the plurality of channels 28 are organized into rows 48 that are disposed parallel to each other and parallel to the primary extension direction A of the spoiler 22. The plurality of spray holes 30 also extend within the rows 48 in a direction parallel to the primary extension direction A of the spoiler 22.

[0113] Cumulatively, the channels 28 and spray holes 30 may also be organized in an array 46 in a direction transverse to or perpendicular to the primary extension direction A of the spoiler 22, in addition to the previously described rows 48. It should be understood that the channels 28 and spray holes 30 are aligned with one another to form a grid.

[0114] According to an alternative embodiment of the invention, at least one channel 28 extends from the distribution pipe 26 to the spray holes 30 having a star shape. The channel 28 may also extend from the distribution pipe 26 to the spray holes 30 with a star-shaped section.

[0115] Furthermore, at least one spray hole 30 has a different shape than another spray hole 30. It should be understood here that the majority of the spray holes 30 extend in a first shape, e.g., circular, and that at least one spray hole 30 extends in a second shape, e.g., rectangular.

[0116] In this configuration, it may be contemplated that the plurality of spray holes 30 includes a first set of spray holes 30 having a first shape and a second set of spray holes 30 having a second shape, the first set of spray holes alternating with the second set of spray holes 30 distributed along the primary extension direction of the spoiler 22. This alternating configuration may be, for example, an alternating configuration of a first array 46 of spray holes 30 having a first shape and a second array 46 of spray holes 30 having a second shape.

[0117] However, the present invention is not limited to the means and configurations described and illustrated in this document, but extends to all equivalent means and configurations, and any technically operable combination of such means. In particular, the rows 48 and arrays 46 of holes may be organized in a staggered arrangement, as explained earlier in this description. Furthermore, the spray holes 30, like the area of ​​at least one channel 28, may have shapes different from those described above, so long as they achieve the objectives set by the present invention.

Claims

1. A wiper (8) of a wiper system (2) for a vehicle (1), comprising: at least one wiper blade (24) held by a support and configured to wipe a glass surface (4) of the vehicle (1); The wiper (8) includes a spoiler (22) configured to be connected to a cleaning system (12) for dispersing a cleaning fluid; the spoiler (22) includes a body (32) in which a spray manifold (18) for the cleaning fluid is provided, the spray manifold being configured to be connected to the cleaning system (12); the spray manifold (18) extends in a primary extension direction (A) of the spoiler (22) and includes at least one row (48) of spray holes (30); The wiper (8) is characterized in that the number of spray holes (30) per row (48) is 1 to 60 over a portion of the spoiler (22) of 10 mm, measured in the main extension direction (A) of the spoiler (22), and the spray holes (30) of one row (48) are spaced apart at intervals of 0.15 to 10 mm in the main extension direction (A) of the spoiler (22), and at least one spray hole (30) has a passage area with a cross-sectional area of ​​0.002 mm 2 to 0.070 mm 2.

2. 2. The wiper (8) according to claim 1, wherein the number of spray holes (30) per row (48) is between 1 and 10 over a portion of the spoiler (22) of 10 mm measured in the main extension direction (A) of the spoiler (22), and the spray holes (30) of a row (48) are spaced apart at intervals of 1.5 to 10 mm in the main extension direction (A) of the spoiler (22).

3. 2. The wiper (8) according to claim 1, wherein the number of spray holes (30) per row (48) is 1 to 5 over a portion of the spoiler (22) of 10 mm measured in the main extension direction (A) of the spoiler (22), and the spray holes (30) of a row (48) are spaced apart at intervals of 2.8 to 10 mm in the main extension direction (A) of the spoiler (22).

4. The wiper (8) of claim 1, wherein at least one spray hole (30) of the at least one row (48) of spray holes has a generally circular shape.

5. The wiper (8) of claim 1, wherein at least one spray hole (30) of the at least one row (48) of spray holes has a generally rectangular shape.

6. 2. The wiper (8) according to claim 1, wherein the spray manifold (18) includes only one row (48) of spray holes (30) aligned in the main extension direction (A) of the spoiler (22).

7. 2. The wiper (8) of claim 1, wherein the spray manifold (18) includes at least two separate rows (48) of spray holes (30) aligned in the main extension direction (A) of the spoiler (22).

8. 2. The wiper (8) according to claim 1, wherein the spray manifold (18) includes a distribution pipe (26) extending in a main extension direction (A) of the spoiler (22) and a plurality of channels (28) distributed along the main extension direction (A) of the spoiler (22), each of the channels (28) extending between the distribution pipe (26) and the spray hole (30).

9. 9. The wiper (8) of claim 8, wherein the plurality of channels (28) includes at least two separate alignments (46) of channels (28) aligned in a direction transverse to the main extension direction (A) of the spoiler (22).

10. 9. The wiper (8) of claim 8, wherein the spray manifold (18) comprises a plurality of rows (48) of channels (28) distributed radially around the distribution pipe (26) over an angular sector of between 5° and 30°.

11. 9. The wiper (8) of claim 8, wherein at least some of the channels (28) are staggered across the body portion (32) of the spoiler (22).

12. 2. The wiper (8) according to claim 1, wherein the spray holes (30) of at least one row (48) of spray holes are uniformly distributed along the main extension direction (A) of the spoiler (22).

13. The total area of ​​the spray holes (30) is 1 mm ２ ~3mm ２ 2. The wiper (8) according to claim 1, wherein:

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