Windshield wiper system and wiper blades for a vehicle

Abstract

TITLE: Windshield Wiper System and Wiper for a Vehicle. A windshield wiper system comprising a wiper having a spray device (4) connected to a first connecting nozzle (5), and a wiper arm (5) equipped with a fluid supply element. The supply element includes a second connecting nozzle (6). The first nozzle (5) and the second connecting nozzle (6) are connected by a form-fitting interface to achieve fluid communication. The first nozzle (5) or the second nozzle (6) is elastically deformable at least in certain areas to achieve a form-fitting interface. Figure 2

Description

Title of the invention: Windshield wiper system and wiper for a vehicle. FIELD OF THE INVENTION

[0001] The present invention relates to a windshield wiper system for a vehicle and a windshield wiper for such a system. STATE OF THE ART

[0002] A clean windshield is essential for a clear view through the windshield. Therefore, vehicles are generally equipped with a windshield cleaning system. Such systems may include a spray device and a wiper. To remove dirt, windshield washer fluid is first applied to the windshield using the spray device. Then, the washer fluid and dirt are wiped away with the windshield wiper to clear the driver's primary field of vision. This ensures that the driver's field of vision is clean.

[0003] The spray device and the windshield wiper can be separate components, and the spray device can be installed in various locations in front of the windshield. Alternatively, cleaning systems comprising one or more spray devices mounted on the windshield wiper are known. For a spray device on the wiper, it is sufficient to mount the wiper without additional mounting of the spray device. To supply the wiper spray device with windshield washer fluid, an additional washer fluid supply line is required, running along the wiper arm to the wiper and through the wiper itself. This is achieved by running a hose along the wiper arm to the wiper and connecting it to the spray device's distribution system.

[0004] DESCRIPTION AND ADVANTAGES OF THE INVENTION

[0005] The present invention relates to a windshield wiper system for a vehicle, comprising a wiper having a spray device for spraying a liquid and a first connecting nozzle connected by a fluidic link to the spray device, and a wiper arm equipped with a liquid supply element for providing liquid to be sprayed, the liquid supply element comprising at least one second connecting nozzle, the first connecting nozzle and the second connecting nozzle being connected by a form link for fluidic communication between the first liquid supply element and the spray device, the first nozzle of connection or the second connecting end being elastically deformable at least in zones to achieve the connection by shape.

[0006] In other words, the windshield wiper system according to the invention for a motor vehicle includes a windshield wiper with at least one spraying device for projecting liquid and at least one first connection nozzle for the spraying device which allows the spraying device of the windshield wiper to be supplied by the liquid arriving through the first connection nozzle.

[0007] The wiper system further comprises a wiper arm with a fluid supply element to provide the fluid to be sprayed. The fluid supply element has a second connection nozzle. Furthermore, the first and second connection nozzles can be connected to each other by a form connection to establish fluid communication between the fluid supply element and the spray device. This allows the fluid from the fluid supply element to be supplied, via the fluid connection between the first and second connection nozzles, to the wiper spray device.

[0008] Preferably, the fluid supply element is pressed onto the second connecting nozzle, the connection between the wiper blade and the fluid supply element resulting from the connection between the first and second connecting nozzles. The same applies to the opening (or separation) of the fluid connection between the wiper blade and the fluid supply element between the first and second connecting nozzles. This simplifies both the creation and separation of the fluid connection between the wiper blade and the fluid supply element; and simplifies wiper blade replacement and makes maintenance of the wiper system easier.

[0009] Furthermore, the first or second end piece is elastically deformable, at least in certain areas, to achieve the connection by shape. Thus, to achieve the connection by shape, it is sufficient to apply a force to the first connecting element and the second connecting element to elastically deform the first connecting element and the second connecting element.

[0010] The connection by shape provides a guaranteed and reliable fixing. Thus, the liquid can pass through the first connecting nozzle and the second connecting nozzle, reducing or eliminating the risk of accidental separation of the connecting nozzles, for example, due to liquid pressure, but manual separation remains simple and requires no maintenance.

[0011] Preferably, the first connecting end or the second connecting end does not elastically deform once the connection by the shape has been made, but the first connecting end or the second end of The connections remain elastically deformable, at least in certain areas, to allow for separation (or opening) of the connection by shape. The elastic deformability of the first or second connection nozzle ensures that the connection between the first and second nozzles can be separated without damage. Simultaneously, this ensures that the fluid connection between the first and second nozzles does not accidentally open under the pressure of the liquid in either nozzle during the operation of the spray device.Since the first connecting end or the second connecting end, when the connection by form is made, are not elastically deformable, this limits the mechanical stresses exerted on the first connecting end or the second connecting end only at the time of assembly and at the time of separation of the connection by form; the mechanical stress on the first connecting end and the second connecting end is not stressed in the longest duration state, namely that of the connection by form once made.

[0012] Preferably, the first or second connecting end fitting has a handle; actuating this handle allows the first or second connecting end fitting to be deformed to create or open the connection by elastic deformation. Using the handle to separate or create the connection facilitates the operation for the user. The handle provides a clearly defined point of interaction for the user and can also be advantageously positioned on the elastically deformable area, creating a lever effect on this area and further facilitating the separation or creation of the connection by shape.

[0013] In a particularly preferred configuration, the wiper or wiper arm has an opening mechanism mounted on the first or second connecting end so as to be movable relative to the first or second connecting end. This opening mechanism is designed to deform the second or first connecting end and even separate or open the connection by its shape. The opening mechanism facilitates separation of the connection by its shape for the user. The opening mechanism constitutes a clearly defined point of interaction for the user. Furthermore, the opening mechanism allows the user to comfortably slide the opening mechanism relative to the first or second connecting end by transforming this movement into a flexing of the elastically deformable area.

[0014] In a particularly preferred manner, the first connecting end fitting has at least one snap-on connecting element and the second connecting end fitting has at least one counter-piece, or alternatively, the second connecting end fitting has at least one snap-on connecting element and the first connecting end fitting has at least one counter-piece, the snap-on connecting element engaging with the counter-piece, preferably to create a snap-fit ​​connection. The snap-on connecting element provides an economical way to transform an elastically deformable area of ​​the first or second connecting end fitting. Since the snap-on connecting element and the remaining part of the connecting end fitting can be made of the same material, the manufacturing of the connecting end fitting does not require a separate process for producing the snap-on connecting element.Furthermore, besides the snap-on connecting element and the counter piece, no additional components are required to achieve the form-fit connection, thus minimizing material and manufacturing costs. Specifically, the snap-on connecting element and the counter piece have two surfaces.

[0015] The surfaces are at the smallest possible angle to the assembly direction, with the snap-on connecting element and the counter-part sliding against each other in the assembly direction. In this way, only a very small force in the assembly direction is required to create the connection between the snap-on connecting element and the counter-part, thus achieving the necessary elastic deformation. In particular, the snap-on connecting element and the counter-part have two surfaces that form an angle as large as possible with respect to the direction opposite to the assembly direction.Thus, once the snap-on connecting element and the counter-part are joined, a significant force must be applied in the opposite direction to the assembly direction to elastically deform the joint and prevent inadvertent over-exceeding of this force and the resulting separation of the connection between the fluidic connecting element and the spray device. Specifically, the snap-on connecting element and the counter-part are positioned so that forces opposing those in the assembly direction, which may be generated by potential liquid pressure in the first or second connection nozzle during the use of the spray device, do not cause the connection to break.

[0016] According to one embodiment, the first or second connecting end piece, once the connection by the shape has been made, remains elastically deformable. Preferably, the first or second connecting end piece remains elastically deformable at least in certain areas to separate (open) the connection by the shape.

[0017] Preferably, the first connecting fitting has at least one bayonet-type connecting element and the second connecting fitting has at least one bayonet-type counter-piece. Alternatively, or in addition, the second connecting fitting has at least one bayonet-type connecting element and the first connecting fitting has at least one bayonet-type counter-piece, the bayonet-type connecting element being able to engage with the bayonet-type counter-piece. The bayonet connection has the advantage that the liquid pressure in the first or second connecting fitting pushes the bayonet-type counter-piece into a retaining element of the bayonet-type connecting element. Thus, the liquid pressure in the first or second connecting fitting cannot open the connection due to its shape.At the same time, to release the connection by form, the spring force pushing on the bayonet counterpiece and the bayonet connecting element must be overcome. This force must only correspond to that of the sufficiently large frictional connection between the bayonet counterpiece and the bayonet connecting element so that the connection by form is not at risk of being released by minor unintended events. Therefore, the force by which the bayonet counterpiece is pushed into the bayonet connecting element is chosen to be less than the force required to release the snap-on connecting element from its counterpiece.

[0018] Preferably, the first connecting end fitting has a recess into which the second connecting end fitting engages, at least by a segment, to create a connection by shape. Alternatively, the second connecting end fitting has a recess into which the first connecting end fitting can be inserted, at least by a segment, to create a connection by shape. This ensures a seal between the first and second connecting end fittings. In particular, this allows a sealing element to be placed in the recess or on the connecting end fitting between the first and second connecting end fittings, thus ensuring a seal by shape.

[0019] The invention further relates to a windshield wiper for a vehicle. The wiper has at least one spraying device for spraying a liquid and at least one first connection nozzle connected to the spraying device by a fluidic link. This allows the spraying device of the wiper to be supplied by the liquid arriving at the first connection nozzle. The first connection nozzle can be connected by a form-fitting link to the second connection nozzle of the vehicle to supply the liquid and establish fluidic communication between the second connection nozzle and the spraying device. Thus, the liquid arriving at the second connection nozzle can be applied, via the fluidic link between the second connection nozzle and the first connection nozzle, to the device. Spraying to supply fluid to the wiper. The separation between the wiper and the second connection nozzle occurs without damage between the first and second connection nozzles.

[0020] The fluid connection between the wiper blade and the second connecting nozzle is separated without damage, in the same way as between the first and second connecting nozzles. This simplified separation of the fluid connection between the wiper blade and the fluid supply element allows for easy wiper blade replacement and improves wiper blade maintenance. The form-fitting connection provides a guaranteed and reliable attachment. The fluid flow can thus pass from the first connecting nozzle to the second connecting nozzle, reducing or preventing any risk of unintentional / accidental separation of the connecting nozzle, for example, due to fluid pressure. The separation is simple and maintenance-free. Furthermore, the first connecting nozzle is elastically deformable, at least in certain areas, to achieve the form-fitting connection.Thus, to achieve the connection by shape, it is sufficient to exert a force on the first connecting element and the second connecting element to obtain an elastic deformation of the first connecting element and the second connecting element.

[0021] Preferably, the first connecting nozzle is not elastically deformable once the connection by shape has been established, and the first connecting nozzle is elastically deformable at least in certain areas to separate the connection by shape. The elastic deformability of the first connecting nozzle ensures that the connection between the first and second connecting nozzles can be opened without damage. At the same time, this also ensures that the fluid connection between the first and second connecting nozzles does not accidentally open under the effect of liquid pressure in either the first or second connecting nozzle during the operation of the spraying device.Since the first connecting end, once the form connection is made, is not elastically deformable, the mechanical stress on the first connecting end only exists at the moment of assembly and separation of the form connection with the second connecting end, and the mechanical stress on the first connecting end does not exist during the longest period, that of the form connection once made.

[0022] In a particularly preferred manner, the first connecting end piece has a handle which, when actuated, elastically deforms the first connecting end piece to make or break the connection by shape. The use of the handle to break or break the connection by the The shape facilitates the maneuver for the user. The handle allows for a clearly defined point of interaction for the user and can also have an advantageous position on the elastically deformable area to create a lever effect exerted on this elastically deformable area and further facilitate the separation or the creation of the connection by the shape.

[0023] In a particularly preferred configuration, the wiper blade has at least one opening element mounted on the first connecting end so as to be movable relative to the first connecting end. Furthermore, the opening element is designed to deform the second connecting end to separate the connection by shape. The opening element facilitates separation of the connection by shape for the user. The opening element constitutes a clearly defined point of interaction for the user. Moreover, the opening element allows the user to perform a sliding movement of the opening element relative to the first connecting end by transforming this movement into a flexing of the elastically deformable area of ​​the second connecting end.

[0024] In a particularly preferred configuration, the first connecting end fitting has at least one first snap-on connecting element and / or a first counter-piece, the snap-on connecting element engaging with the counter-piece of the second connecting end fitting, or alternatively, the first counter-piece has a snap-on connecting element that engages with the second connecting end fitting, in particular, to create a snap-on connection. The snap-on connecting element provides an economical solution for transforming an elastically deformable area of ​​the first or second connecting end fitting. Since the snap-on connecting element and the remaining portion of the connecting end fitting are made of the same material, this eliminates the need for any additional manufacturing process for the snap-on connecting element when producing the connecting end fitting.Furthermore, apart from the snap-on connecting element and the counter-piece, no additional components are required to achieve the form-fit connection, thus minimizing material and manufacturing costs.

[0025] According to an interesting feature, a snap-on connecting element of the second connecting end can hook onto the first counter-piece, preferably to achieve a hook-on connection.

[0026] According to one embodiment, the first connecting end remains elastically deformable once the connection by shape has been made. The first connecting end remains elastically deformable at least in zones to separate the connection by shape.

[0027] Preferably, the first connecting end comprises at least one first bayonet connecting element or a second bayonet counter-piece. Furthermore, the first bayonet fitting attaches to the bayonet fitting of the second connecting end, or conversely, the bayonet fitting of the second connecting end attaches to the second bayonet fitting. The advantage of the bayonet fitting is that the fluid pressure in the first or second connecting end pushes the bayonet fitting into a fastening element of the bayonet fitting. Thus, the fluid pressure in the first or second connecting end cannot open the connection by its shape. At the same time, opening the connection by its shape would require overcoming the spring force that pushes the bayonet fitting and the bayonet fitting.This force only needs to be sufficient to create a sufficiently strong frictional connection between the bayonet fitting and the bayonet connecting element so that the form connection cannot be broken by even the slightest disturbance. Thus, a small force is sufficient to push the bayonet fitting into the bayonet connecting element, and this force is less than that required to open the snap-on connecting element from its fitting. Brief description of the drawings

[0028] The present invention will be described in more detail below with reference to an embodiment of a windshield wiper system according to the invention shown in the accompanying drawings in which:

[0029] [Fig. 1] Schematic view of a windshield wiper system according to an example of an embodiment of the invention,

[0030] [Fig.2] Schematic view of a first connecting end and a second wiper system connection fitting according to an embodiment of the invention with snap hooks,

[0031] [Fig.3] Schematic view of a first connecting end and a second windshield wiper system connection fitting according to an embodiment of the invention with an opening element,

[0032] [Fig.4] Schematic view of a first connecting end and a second wiper system connection fitting corresponding to an example of an embodiment of the invention with a handle, and

[0033] [Fig. 5] Schematic view of a first connecting end and a second wiper system connection fitting according to an embodiment of the invention with a bayonet connection.

[0034] DESCRIPTION OF EMBODIMENT METHODS OF THE INVENTION

[0035] Figure 1 is a schematic view of a windshield wiper system 1 according to an embodiment of the invention. The windshield wiper system 1 comprises a windshield wiper 2 connected to the wiper arm 3 so that the movement of the wiper arm 3 results in a movement of the wiper 2. The wiper 2 includes a spray device 4 and a first connecting nozzle 5. The wiper arm 3 has a liquid supply element 7, for example, a hose, as well as a second connecting nozzle 6. It is, for example, intended to fix the wiper arm 3 to the vehicle body so that the wiper 1 can wipe the vehicle window.

[0036] The first connecting nozzle 5 is connected by a fluidic link to the spraying device 4 to allow the liquid supplied to the first connecting nozzle 5 to be sprayed by the spraying device 4, for example, to spray the liquid against the windshield of a vehicle. The windshield wiper 2 can ensure that the sprayed liquid wipes the driver's field of vision on the windshield and guarantees a clear view through the windshield.

[0037] The fluid supply element 7 is connected to the second connection nozzle 6 by a fluidic link and thus supplies the fluid, for example, from a fluid reservoir (not detailed). The fluid can therefore be transferred from a fluid reservoir via the fluid supply element 7 to the second connection nozzle 6. The fluid supply element 7 is mounted on the wiper arm 3 and thus follows the movement of the wiper arm 3.

[0038] The wiper arm 3 and the wiper blade 2 are preferably designed to be separable; thus, the wiper blade 2 is mechanically removable and easily attached to the wiper blade 2 of the wiper arm 3. The same applies to a fluid connection between the wiper blade 2 and the wiper arm 3; these two elements are connected by the first connecting end 5 and the second connecting end 8. The first connecting end 5 and the second connecting end 8 are connected to each other by a fluid connection through a shape that can be opened without damage. The connection through the shape between the first connecting end 5 and the second connecting end 6 connects the first supply element 7 to the spray device 4 via a fluid connection.Thus, according to the examples above, the liquid can be sprayed from the liquid reservoir, passing through the liquid supply element 7, the second connecting nozzle 6 and the first connecting nozzle 5 to reach the spraying device 4 and be projected onto the windshield of the vehicle.

[0039] The feed element 7 is fitted onto one end of the second connecting nozzle 6 to establish the fluid connection with the second connecting nozzle 6. The feed element 7 is elastically connected or stretched elastically and is pressed by this extension against the body of the second connecting nozzle for a predefined operation of the spraying device 4, for that the supply element 7 is not detached by pressure in the supply element 7 or in the second connecting nozzle 6 and cuts the fluidic link between the connecting nozzle 6 and the liquid supply device 7. Separation of this link is not generally intended and is not the purpose of this link.

[0040] To separate the fluid connection between the wiper 2 and the wiper arm 3, the connection is opened by the shape between the first connecting end 5 and the second connecting end 6. To do this, a first partial area of ​​the first connecting end 5 or the second connecting end 6 is elastically deformed by elastic deformation, and the second connecting end 6 is pulled in the separation direction 100 (see Figures 2 to 5) relative to the first connecting end 5. This simplifies the disassembly of the wiper 2 from the wiper arm 3 by separating the connection by the shape between the first connecting element 5 and the second connecting element 6 without destroying it.To mount the wiper 2 onto the wiper arm 3, a fluid connection is made just as simply by fitting the second connecting end 6 onto the first connecting end 5 in the opposite direction to the separation direction 100.

[0041] Figure 2 is a schematic view of a first connecting end 5 and a second connecting end 6 of the wiper system 1 with a snap hook 6c according to one embodiment of the invention. The first connecting end 5 has a bore 5a, a sealing element 5b, and a snap hook counter-piece 5c. The bore 5a is connected by a fluidic link to the spray device 4. The seal 5b, preferably an O-ring, serves to provide a seal between the first connecting end 5 and the second connecting end 6. The snap hook counter-piece 5c serves as a counter-piece for the snap hook 6c to engage the snap hook 6c with the counter-piece 5c.

[0042] The second connecting end 6 has a through bore 6a, a pin 6b, and a snap-fit ​​connection 6c. The pin 6b provides a form connection between the liquid supply element 7 and the second connecting end 6, the liquid transfer element 7 being pressed onto the pin 6b. This form connection simultaneously provides a fluid connection between the liquid supply element 7 and the second connecting end 6. The through bore 6a provides a fluid connection between the supply element 7 and the first connecting end 5. The through bore 6a is located at one end such that the inner diameter 6d is larger than the outer diameter 5d of the first connecting end 5. Thus, the end is designed so that the first connecting end 5 can The second connecting element 6 must be engaged sufficiently far so that the snap hook 6c of the second connecting nozzle 6 can pass over the counter-piece 5c of the first connecting element 5 and is in the engaged position. Simultaneously, the seal 5b and the difference between the outer diameter 5d and the inner diameter 6d are chosen to provide sufficient sealing between the first connecting nozzle 5 and the second connecting nozzle 6, ensuring that, for the intended operation of the spray device 4, there will be no leakage between the first connecting nozzle 5 and the second connecting nozzle 6.

[0043] Since the snap-fit ​​connection 6c, 5c can be reopened without damage, this simplifies the mounting and dismounting of the wiper 2 relative to the wiper arm 3. Thus, it is not necessary to provide for a complicated mounting or dismounting and unsafe operation of the fluid supply element 7 directly on the wiper 2. The fluid supply element 7 is pressed onto the second connecting end 6. To break the connection between the supply element 7 and the wiper 2, it is not necessary to be able to pull the supply element 7 from the second connecting end 6. Instead, the connection between the first connecting end 5 and the second connecting end 6 is opened without damage by pulling the snap hook 6c from the counter-part 5c along the separation direction 100.The power supply element 7 and the wiper arm 3 can thus be easily and non-destructively separated from the wiper 2 according to the prior art. This facilitates assembly and disassembly and consequently, maintenance and retrofitting of a wiper system 1 according to the invention on the vehicle.

[0044] Figure 3 is a schematic view of a first connecting end piece 5 and a second connecting end piece 6 of the wiper system 1 according to an embodiment of the invention, with an opening member 8. The second connecting end piece 6 has a through hole 6a, a pin 6b, a ratcheting hook counter-piece 6e, and a guide 6f receiving an opening member 8, movable relative to the second connecting element 6. The first connecting end piece 5 has a hole 5a, a seal 5b, in particular an O-ring, and a ratcheting hook 5e. The through hole 6a, the inner diameter 6d, and the outer diameter 5d are as in the embodiment shown in Figure 2.The first connecting end 5 engages in the second connecting end 6 so that the seal 5b creates a seal between the first connecting end 5 and the second connecting end 6, and at the same time the snap-fit ​​connection 5e engages in the counter-piece 6e. The pin 6b has the same design and function as in [Fig. 2].

[0045] The guide 6f and the opening 8 are designed so that the user can press the opening member 8 against the guide 6f. Thus, the opening member 8 moves according to the The separation direction is 100° relative to the second connecting end 6, so the opening member 8 butts with its end 8a against the latching hook 5e of the first connecting end 5. As the second connecting end 6 is connected to the first connecting end 5 by a latching connection 5e, 6e, creating a connection by shape, the end 8a of the opening member 8 displaces the opening member 8 relative to the second connecting end 6, also for a relative movement of the opening member 8 relative to the first connecting end 5 and thus also against a latching hook 5e. The end 8a of the opening member 8 and the latching hook 5e are designed so that a relative movement of the opening member 8 with respect to the latching hook 5e causes the latching hook 5e to be compressed. Thus, the 5th ratchet hook is pushed out of its latching position.The opening member 8 is then abutted against the retracted locking hook 5e. At the same time, the user presses the opening member 8 against the guide 6f so that the locking hook 5e can no longer block the counter piece 6e, and the second connecting end 6 can be pulled from the first connecting end 5 in the separation direction 100; thus, the locking hook 5e can no longer pull the counter piece and therefore cannot surround it. The second connecting end 6 can then be pulled further in the separation direction 100 until the connection is opened by the form. The opening member 8 constitutes a simpler mechanism to assist the user and facilitates the removal of the second connecting end 6 compared to the first connecting end 5 and the opening of the connection by the shape.

[0046] Just as [Fig.2] shows the possibility of non-destructive separation of the connection by shape between the first connecting end 5 and the second connecting end 6, the assembly and disassembly of the wiper 2 is considerably facilitated in relation to the wiper arm 3 because the liquid supply element no longer has to be removed from the first connecting end 5 or the second connecting end 6.

[0047] Figure 4 is a schematic view of a first connecting end 5 and a second connecting end 6 of the wiper system 1 with a handle 9 according to one embodiment of the invention. The second connecting end 6 has a through hole 6a, a pin 6b, and a locking hook 6e. The first connecting end 5 has a hole 5a, a seal 5b, an O-ring, and a locking hook 5e with a handle 9. The through hole 6a, the inner diameter 6d, and the outer diameter 5d are similar to those of the preceding embodiment in Figure 2, so that the first connecting end 5 can engage with the second connecting end 6, and the seal 5b provides a seal between the first connecting end 5 and the second end 6. connection 6 and that at the same time the snap-fit ​​connection 5e attaches to the counter-piece 6e. Thus, the pin 6b has the same embodiment and the same function as in [Fig.2].

[0048] In the position where the snap hook 5e is engaged with the snap hook counter-piece 6e, the connection by shape is maintained between the first connecting end 5 and the second connecting end 6. To establish a connection by shape and thus open the fluid connection between the liquid supply element 7 and the spraying device, the snap hook 5e must first be removed from its engagement position. This requires elastically separating the snap hook 5e. This can be done simply by removing the second connecting end 6 relative to the first connecting end 5 along the separation direction 100.For the user this implies the application of considerable force because the force connection 5e, 6e is designed so that the pressure of the liquid in the first connecting nozzle 5 or in the second connecting nozzle 6, for a predefined operation of the spraying device 4, does not result in the untimely opening of the connection by hooking 5e, 6e.

[0049] The handle 9 allows the hooks 5e to be spread apart. To do this, the handle 9 is placed on the hook 5e so that it provides the longest possible lever arm relative to a fixing point of the snap-on link 5e. By spreading the snap-on link 5e apart with the lever, the second connecting end 6 can be removed without contact, along the separation direction 100 relative to the first connecting end 5, without having to apply additional force during this extraction movement to compress the hook 5e by spreading it apart. This prevents the second connecting element 6 from being extracted from the first connecting element 5.

[0050] Similarly, [Fig.2] shows the possibility of separating without destruction the connection by shape between the first connecting end 5 and the second connecting end 6, considerably facilitating the mounting and dismounting of the wiper 2 on the wiper arm 3 because the liquid supply element does not have to be first removed from the first connecting end 5 or the second connecting end 6.

[0051] Figure 5 is a schematic view of a first connecting end 5 and a second connecting end 6 of the wiper system 1 with a bayonet connection 5g, 6g according to another embodiment of the invention. The second connecting element 6 has a through hole 6a, a pin 6b, a bayonet connecting element 6g, and a spring 6h. The first connecting end 5 has a hole 5a, a seal 5b, an O-ring, and a bayonet counter-piece 5g. The through hole 6a, the inner diameter 6d, and the outer diameter 5d are similar to those of the embodiment shown in Figure 2, such that the first end The connecting end 5 can engage in the second connecting end 6, and the seal 5b provides a seal between the first connecting end 5 and the second connecting end 6, while allowing the bayonet counter-piece 5g to attach to the bayonet connecting element 6g. The pin 6b has the same design and function as in [Fig. 2].

[0052] When connected by a link formed by the shape of the second connecting end 6 to the first connecting end 5, the spring 6h is positioned between the front face of the first connecting end 5 and the bearing surface in the second connecting end 6. The spring 6h thus exerts a force that pushes the second connecting end 6 away from the first connecting end 5, and the bayonet fitting 5g is pressed into the bayonet connecting element 6g. This prevents accidental rotation of the second connecting end 6 towards the first connecting end 5 and the subsequent opening of the bayonet connection 5g, 6g. To make the connection, the second connecting end 6 is pushed against the force of the spring 6h on the first connecting end 5 until the second connecting end 6 can rotate relative to the first connecting end 5 to engage the bayonet counterpiece 5g in the bayonet connection 6g.To separate the connection, spring 6h must be further compressed, and bayonet fitting 5g removed from bayonet fitting 6g. To separate the connection, spring 6h is further compressed, and bayonet fitting 5g is extracted from bayonet fitting 6g by rotating it. Then, spring 6h pushes the second connecting end 6 away from the first connecting end 5, allowing the second connecting end 6 to be removed from the first connecting end 5 in the separation direction 100. The advantage of this embodiment compared to a snap-fit ​​connection is that the fluid pressure in the first connecting end 5 or the second connecting end 6 pushes bayonet fitting 5g more firmly into bayonet fitting 6.The 5g, 6g bayonet fitting cannot be opened without damage by the pressure of the liquid in the first connecting end 5 or in the second connecting end 6. At the same time, the spring force can be designed independently of the liquid pressure so that opening the fitting by the shape is difficult regardless of the pressure in the fitting by the shape.

[0053] As in the previous figures, the possibility of non-destructive separation of the connection by shape between the first connecting end 5 and the second connecting end 6 considerably facilitates the assembly and disassembly of the wiper 2 with respect to the wiper arm 3 because the liquid supply element 7 no longer depends on the first connecting end 5 or the second connecting end 6.

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[0070]

[0071] NOMENCLATURE OF MAIN COMPONENTS 1 Wiper system 2 Wiper 3 Wiper arm 4 Spray device 5 First connecting end 5b Seal 5c Counter piece 5d Outside diameter 6 Second connecting end 6a Through hole 6b Pin 6c Snap linkage 6d Inside diameter of through hole 6e Snap hook counter piece 7 Fluid transfer element / fluid supply element 8 Opening member 100 Separation direction

Claims

Demands

1. A windshield wiper system (1) for a vehicle, comprising: - a windshield wiper (2) having at least one spray device (4) for spraying a liquid and at least one first connecting nozzle (5) connected by a fluid link to the spray device (4), and - a wiper arm (3) equipped with a fluid supply element (7) for supplying liquid to be sprayed, - the fluid supply element (7) comprising at least one second connecting nozzle (6), - the first connecting nozzle (5) and the second connecting nozzle (6) being connected by a form link to achieve fluid communication between the first fluid supply element (7) and the spray device (4), and - the first connecting nozzle (5) or the second connecting nozzle (6) being elastically deformable at least in zones to achieve the form link,characterized in that - the first connecting end (5) or the second connecting end (6) has a handle (9), - the handle (9) being designed so that, by its actuation, the first connecting end (5) or the second connecting end (6) deforms elastically to create or separate the connection by shape.

2. Wiper system (1) according to claim 1, characterized in that - the first connecting end (5) or the second connecting end (6) is no longer elastically deformable when the connection by shape is made, and - the first connecting end (5) or the second connecting end (6) is elastically deformable at least by zones to separate the connection by shape.

3. Wiper system (1) according to claim 1, characterized in that the wiper (2) or the wiper arm (3) comprises an opening member (8), - the opening member (8) being mounted on the first connecting end (5) or the second connecting end (6) to move relative to the first connecting end (5) or the second connecting end (6), and - the opening member (8) being made to separate the connection by shape by deforming the first connecting end (5) or the second connecting end (6).

4. Wiper system (1) according to any one of the preceding claims, characterized in that the first connecting end (5) comprises at least one snap-on connecting element (5e) and the second connecting end (6) comprises at least one counter piece (6e) or, the second connecting end (6) comprises at least one snap-on connecting element (6c) and the first connecting end (5) comprises at least one counter piece (5c), - the snap-on connecting element (5e, 6c) preferably hooks onto the counter piece (5c, 6e) to achieve a snap-on connection.

5. Wiper system (1) according to claim 1, characterized in that the first connecting end (5) or the second connecting end (6) remain elastically deformed when the connection by shape is made, the first connecting end (5) or the second connecting end (6) being able to be elastically deformed at least by zones, in a more advanced way to separate the connection by shape.

6. Wiper system (1) according to any one of claims 1 or 5, characterized in that the first connecting end (5) comprises at least one bayonet connecting element and the second connecting end (6) comprises at least one bayonet counterpiece, or the second connecting end (6) comprises at least one bayonet connecting element (6g) and the first connecting end (5) comprises at least one bayonet counterpiece (5g), the bayonet connecting element (6g) attaches to the bayonet counterpiece (5g).

7. Wiper system (1) according to any one of the preceding claims, characterized in that the first connecting end (5) has a recess into which the second connecting end (6) can engage at least segment by segment to achieve the connection by shape or the second connecting end (6) has a recess (6a) into which the first connecting end (5) engages at least segment by segment to achieve the connection by shape.

8. Windscreen wiper (2) for a vehicle, comprising: - at least one spray device (4) for spraying a liquid, and - at least one first connecting nozzle (5) connected to the spray device (4) by a fluidic link, * the first connecting nozzle (5) being able to be connected by a shape link to the second connecting nozzle (6) of the vehicle, supplying the liquid to effect a fluidic communication between a second connecting nozzle (6) and the spray device (4), and * the first connecting nozzle (5) being elastically deformable at least in zones to effect the shape link.

9. Wiper (2) according to claim 8, characterized in that the first connecting tip (5) is no longer elastically deformable when the connection by shape is made and the first connecting tip (5) can be elastically deformed at least by zones to separate the connection by shape.

10. Windscreen wiper (2) according to any one of claims 8 or 9, characterized in that the first connecting end (5) has a handle (9), the handle (9) being made, when actuated, to deform the first connecting end (5) to make or separate the connection by shape.

11. Windscreen wiper (2) according to any one of claims 10 and 11, characterized in that the windscreen wiper (2) comprises at least one opening member (8), - the opening member (8) being mounted on the first connecting end (5) so that the opening member (8) can be moved relative to the first connecting end (5), and - the opening member (8) being made so as to be able to deform the second connecting end to separate the connection by shape.

12. Windscreen wiper (2) according to any one of claims 8 to 11, characterized in that the first connecting end (5) comprises at least a first snap-on connecting element (5e) and / or a first counter piece (5c), - the first snap-on connecting element (5e) being able to hook onto the counter piece (6e) of the second connecting end (6), or - a snap-on connecting element (6c) of the second connecting end (6) being able to hook onto the first counter piece (5c), preferably to achieve a hook-on connection.

13. Windscreen wiper (2) according to claim 8, characterized in that once the connection by shape is made, the first connecting tip (5) remains elastically deformable and this first connecting tip (5) remains elastically deformable at least in zones to separate the connection by shape.

14. Windscreen wiper (2) according to claim 8 or 13, characterized in that the first connecting tip (5) comprises at least one first bayonet connecting element or a second bayonet counterpiece (5g), - the first bayonet connecting element being able to hook onto the bayonet counterpiece of the second connecting tip (6), or - a bayonet connecting element (6g) of the second connecting tip (6) being able to hook onto the second bayonet counterpiece (5g).

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