Wiping medium adapter device and wiper thus equipped and method for implementing the device

Abstract

TITLE: Wiping medium adapter device and wiper thus equipped and method of embodiment of the device. Adapter device (22) comprising a base body (28) defining two connection zones (30, 31) for conducting a wiping medium from a channel of the wiper (10) into the adapter on the wiper blade side or the wiper arm side of the wiper, and a heating element (32). The base body (28) defines a passage (34) from one connection zone (30) to another connection zone (31). A closing element (36) connected to the base body (28) by a material connection and provided for separating the connection zones (30, 31) from a passage (34) and securing the heating element (32). Figure 2

Description

Title of the invention: Wiping medium adapter device and windshield wiper thus equipped and method of producing the device FIELD OF THE INVENTION

[0001] The present invention relates to a wiping medium adapter device for a windscreen wiper comprising a base body delimiting two zones for conducting the wiping medium from a respective wiping medium channel of the windscreen wiper into a wiper blade-side or wiper arm-side adapter and a heating element for heating the wiping medium; the base body delimits a passage from one of the two connecting zones to the other of the two connecting zones provided for guiding the heating element from one of the connecting zones to the other.

[0002] The invention also relates to a windshield wiper equipped with such a device and a method of producing such a device.

[0003] The wiping medium is also called windshield washer fluid. STATE OF THE ART

[0004] Wiping medium adapter devices for windshield wipers are already known, comprising a base body delimiting two connecting zones. These connecting zones pass the wiping medium from one of the channels of the windshield wiper into an adapter on the wiper blade side or on the wiper arm side. The device is provided with a heating element for the wiping medium. The base body of this known device has a passage going from one of the two connecting zones to the other.

[0005] DISCLOSURE AND ADVANTAGES OF THE INVENTION

[0006] The present invention relates to a wiping medium adapter device for a windscreen wiper comprising at least one base body delimiting at least two connecting areas for conducting a wiping medium from a respective wiping medium channel of the windscreen wiper into a wiper blade-side or wiper arm-side adapter of the windscreen wiper and with at least one heating element for heating the wiping medium, the base body delimiting at least one passage from one of the two connecting areas to the other of the two connecting areas provided for guiding the heating element from one to the other connecting area, this device being characterized in that it comprises at least one closing element connected to the base body by a material connection and provided for separating, in fluid technology, the connecting areas in the area of ​​at least one passage and for fixing the heating element at least partially to the base body.

[0007] Thus, in other words, the wiping medium adapter device comprises a closing element connected to the base body by a material connection. This element separates the connecting areas from each other in the region of at least one passage by means of a fluid technology separation. The heating element is thus partially fixed to the base body.

[0008] The term "material bonding" means that the mass parts, in particular of the closure element and the base body, are held together by atomic or molecular forces such as, for example, by soldering, welding, gluing or vulcanization. The connection area between the closure element and the base body does not comprise an adhesive and in particular, the closure element and the base body are applied directly against each other. The closure element and the base body are connected by welding, in particular by ultrasonic welding.

[0009] The heating element is arranged, in particular clamped, in the region of a passage between the base body and the closing element. Preferably, the element is connected to the base body so that the wiping medium cannot pass between the two connecting regions through the passage and / or cannot escape from the respective connecting region.

[0010] The fact that the closure element is provided to "separate the connecting areas in a region of at least one passage by a separation in fluid technology" means in particular that the passage through the closure element is sealed. In particular, it can be envisaged that the connecting areas in the disassembled state, in particular spaced apart from the wiper, the state of the wiping medium adapter device are connected by a fluid connection by the passage through different orifices of the passage, in particular connection orifices and connection orifices for conducting the liquid and which are in particular not closed by the closure element.

[0011] Preferably, the wiping medium adapter device is provided to be mounted, between the wiper arm and the wiper blade of the wiper device, in particular on a wiper blade-side adapter which is part of the wiper arm adapter and / or a wiper blade adapter or between the wiper arm and a wiper of a construction or a vehicle, in particular on the wiper-side adapter.

[0012] Preferably, the wiper arm comprises at least one and in particular at least two wiping medium channels for supplying the wiper blade with the wiping medium. Preferably, the wiping medium channels are constituted by a tube or a pipe. Particularly preferably, the wiping medium adapter device comprises a wiper blade-side adapter for connecting the two wiping medium channels to the liquid channels of the wiper blade, in particular by the wiper blade adapter and / or the wiper arm adapter. The wiper preferably comprises, in particular the wiper arm, at least one heating unit for heating the wiping medium in the wiping medium channels.

[0013] Preferably, the base body is made in one piece. At least one passage extends from the connecting region via the outer side of the base body to the other connecting region. In particular, at least one outer wall of the base body forms at least one recess which at least partially forms a passage. The passage provided can also be envisaged, in particular completely between the connecting region and the other connecting region and in particular in the form of a recess in a wall separating the two connecting regions of the base body. The recesses are preferably delimited respectively by one side of one of the connecting regions, in particular one side of the respective inner surface of the base body delimiting the respective recess and delimited on another side also by the closure element.The passage and / or the passage area preferably extend from the connecting area to the other connecting area, but are separated from both connecting areas. The two connecting areas are preferably provided for a fluid-technical connection of the wiping medium channels and the wiper adapter on the wiper blade side or the wiper arm side.

[0014] Preferably, the heating element extends from one of the connection orifices delimiting the connection zone in the base body through the passage to a connection orifice delimiting the other connection zone of the base body.

[0015] Preferably, the heating element passes through two channels connected to the wiping medium adapter device, in particular to the two connection ports. Preferably, the heating element is provided for heating the wiping medium in the two connection areas and in the wiping medium channels. The heating element is a heating wire, a heating film or a similar means. Preferably, there is exactly one heating element passing through each of the two wiping medium panels, in particular the heating element is connected to the power supply unit at a distance from the wiping medium adapter device. Alternatively, a heating element connected in the region of the passage to a power supply unit and, preferably, at least one electrically conductive element is connected beyond the two connection areas between the base body and the closure element with the heating element.In particular, the closing element fixes the power line element to the base body.

[0016] It is also possible to envisage a wiping medium adapter device comprising more than one closure element, for example, two closure elements. The closure elements preferably separate the two connection zones, cutting off the fluid connection. Preferably, the closure elements fix the heating element to the base body in combination or separately. Alternatively or additionally, the base body delimits more than one passage and / or the adapter device wiping medium comprises more than one heating element. Alternatively or additionally, the basic body is made of several parts, which are joined together, in particular by the closing element and / or by additionally connecting means to form the wiping medium adapter device; the connection is made in particular as a connection by form and / or by force and / or by material.

[0017] The embodiment of the wiping medium adapter device according to the invention can be an advantageously simple and economical embodiment with only one heating element passing through the two wiping medium channels. It is also possible to have an advantageously simple and economical embodiment of the wiping medium adapter device. The mounting of the heating element on the base body will be advantageously guaranteed, in particular against shocks and vibrations, or the relative movement of the wiper arm and the wiper blade and / or twisting by the movement of the wiping medium channel(s) crossed by the heating element(s).

[0018] According to another feature, the heating element is connected by a material connection to the closure element in the region of the passage of the base body. Advantageously, a firm attachment of the heating element to the base body is achieved. The heating element preferably passes at least in segments, in particular in one region of the passage, without recess, over the base body and the closure element. The passage along the heating element on the closure element is sealed. The base body and the closure element are advantageously made of a plastic material. The heating element is integrated in the region of the passage in the closure element.

[0019] According to another feature, the base body and the closure element are made of a plastic material suitable for ultrasonic welding at least in the area close to the passage. Advantageously, a material connection of the heating element and the base body is achieved by ultrasonic welding. This results in a wiping medium adapter device, advantageously economical and very strong. In particular, the area close to the passage for producing a surface of the base body delimiting the passage and / or the closure element, extends over a minimum distance of at most 2 cm, preferably at least 1 cm and particularly preferably at most 0.5 cm.

[0020] Preferably, the base body and the closure element are made of a plastic material suitable for ultrasonic welding, at least practically completely in this material. The expression "practically completely" means that it is a part of a property or an action concerning an object, in particular the volume of the base body and the closure element made of plastic, this fraction represents in particular at least 95%, preferably at least 98% and particularly preferably at least 99% of the total. The closure element and the base body, in the area close to the passage, are in particular made at least almost entirely of a thermoplastic material. In the area close to the passage, the closure element and the base body are made at least almost entirely of the same material.

[0021] According to another feature, the closure element is at least practically plate-shaped. This allows for reduced manufacturing costs for the closure element. The mounting of the closure element on the base body is advantageously simple. There will also be the advantage of a compact wiping medium adapter device. There will also be the advantage of a simple and rapid ultrasonic welding process for connecting the base body and the closure element, in particular because the usually flat welding jaws can be applied very simply against the closure element.The expression "practically plate-shaped" means in particular that it is a volume element, in particular the closing element which has, in its unfolding in a plane, in a section perpendicular to the plane, a non-round section surface and perpendicular to the plane, in particular a practically constant material thickness which corresponds to less than 35% and in a particularly preferential manner, to less than 25% of the surface extension of the volume element, parallel to the plane in particular for the smallest surface extension of the element parallel to the plane.

[0022] According to another feature, the closure element has a maximum cross-sectional area in the application zone between the base body and the closure element which is larger than the passage made in the application zone. The connection of the closure element and the base body is advantageously covered by the closure element. There will also be a very high strength, in particular, at the connection of the closure element and the base body. Preferably, the closure element protrudes beyond the passage and / or the recess in the base body which constitutes the passage. Preferably, the closure element and / or the base body have connecting surfaces by which the closure element comes against the base body and in particular, the connecting surfaces are at least practically parallel to each other.The term "practically parallel" means that it is in particular the orientation of a straight line, a plane or a direction, in particular a main plane of extension, of a single connecting surface among the connecting surfaces of the closure element and / or the basic body relative to another straight line, another plane or a direction of movement, in particular a main plane of extension of another connecting surface among the connecting surfaces of the closure element and / or the basic body; the straight line, the plane and the direction have, in relation to each other, a straight line, the other direction or the reference direction, in particular in a projection plane, a . deviation less than 8°, advantageously less than 5° and particularly advantageously less than 2°.

[0023] Preferably, the closure element bears against the outer side of the base body. In particular, the base body has at least one passage, in particular a recess forming a passage, delimiting the inner surface; the closure element is spaced apart from the lower surface on the base body. Preferably, the base body has a guide surface which partially delimits the passage. In particular, the guide surface is provided for installing the heating element on the base body. Preferably, the closure element bears against the base body in an area of ​​the guide surface and the heating element. Preferably, the base body and the closure element are connected by a material connection in the area of ​​the guide surface. The guide surface is preferably spaced apart from the connection areas.In particular, the guide surface is provided on the outer side of the base body, preferably spaced from the recesses of the base body constituting the passage.

[0024] Furthermore, in particular, the above-mentioned windscreen wiper having at least two wiping medium channels, comprises at least one and precisely one wiper blade-side adapter and / or one wiper arm-side adapter as indicated as well as at least one wiping medium adapter device according to the invention.

[0025] The embodiment of the windscreen wiper according to the invention has the advantage of being a simple and economical embodiment with only one heating element passing through the two wiping medium channels, which has the advantage of a simple and economical embodiment of the windscreen wiper. The invention allows an advantageously safe embodiment, in particular from the point of view of the arrangement of the heating element on the base body. For the replacement of the wiping medium adapter device there is the advantage of reduced intervention costs.

[0026] The invention also relates to a method for producing a wiping medium adapter device, according to which in at least one step of the method, the base body of the wiping medium adapter device is connected by a material connection to a blank of the closure element, the closure element separating the connection areas delimited by the base body from each other in the area of ​​the passage delimited by the base body, by a fluid technology separation and the heating element is fixed at least partially relative to the base body.

[0027] Preferably, the closure element is made to allow a material connection of the blank of the closure element with the base body.

[0028] The method according to the invention results in advantageously reduced costs. The method is advantageously rapid. Other fixing methods are avoided, particularly those which are rather complicated for fixing the heating element.

[0029] According to another feature, the base body of the wiping medium adapter device is connected to the blank of the closure element by a material connection made by ultrasonic welding. This has the advantage of a fastening of the closure element which requires neither glue nor screws. The fastening is advantageously solid for the closure element. The blank of the wiping medium adapter device is handled in a simple and uncomplicated manner during the manufacturing steps. Preferably, the blank of the closure element is pressed to create a material connection with the base body using a flat welding jaw to press the element against the base body. In particular, the blank or the closure element completely covers the passage at least in the connection area.Preferably, the blank of the closure element is pressed against the base body in particular to be connected to the base body in such a way that the blank or the closure element is connected by a material connection to the outer side of the base body. Preferably, the blank or the closure element are connected to the base body at a distance from the adjacent connection areas.

[0030] According to another characteristic, before connecting the base body and the blank of the closure element by a material connection, in at least one step of the method, the heating element is threaded from one connection zone through the passage delimited in the base body into the other connection zone, the heating element being fixed by the material connection of the base body and the blank of the closure element, between the base body and the closure element. This has the advantage of a posteriori fixing of the heating element. Thus, the threading of the heating element is advantageously simple and rapid. Preferably, the heating element is threaded through a recess delimited by the base body and which constitutes in particular the passage, to go from one of the two connection zones and pass into the other recess delimited by the base body and which constitutes in particular the passage, to arrive in the other of the two connection zones.In particular, while connecting the blank of the closing element to the base body, the heating element is at least partially fixed in the assembly inside the passage, for example, by clamping the heating element by two ends of the heating element which pass through the connecting areas.

[0031] According to a further feature, in at least one step of the method for joining the base body and the closure element by material, the blank of the closure element which, in an edge region of the blank, has at least one peripheral extension, is pressed by the side provided with the extension against the base body; in particular, the extension acts on the outer surface of the base body surrounding the passage. This has the advantage of a simple connection between the closure element and the base body. This has the advantage of a minimal wall thickness of the closure element secured after the connection between the closure element blank and the base body has been made; the extension deforms and is fixed by a material connection to the base body, in particular forming the closure element. The extension preferably extends at regular intervals at least largely or at least practically completely along the edge region of the closure element blank and / or over the area of ​​the passage which is to be sealed and covered by the closure element. Preferably, the edge region extends along the outer contour of the closure element blank in the connection region. Preferably, the extension is formed on at least practically an outer surface of the closure element blank.The extension and / or the blank of the closure element are advantageously designed to avoid the formation of a bead in the connecting areas when connecting the blank of the closure element to the base body. Preferably, the outer side of the base body, which receives the blank of the closure element to be fixed, is spaced from the connecting areas by at least one inner wall and / or the inner surface of the base body. Brief description of the drawings

[0032] The present invention will be described hereinafter in more detail with the aid of a wiping medium adapter device and a windscreen wiper blade thus equipped, shown in the accompanying drawings in which:

[0033] [Fig-1] schematic representation of a windshield wiper equipped with a device wiper blade adapter and obtained by a method according to the invention,

[0034] [Fig.2] schematic top view of the wiping medium adapter device according to the invention,

[0035] [Fig.3] schematic sectional view of the wiping medium adapter device according to the invention,

[0036] [Fig.4] diagram of an example of a method according to the invention for producing the wiping medium adapter device according to the invention,

[0037] [Fig.5] schematic top view of the base body and the closing element of the wiping medium adapter device according to the invention before being connected, during the manufacture of the wiping medium adapter device, and

[0038] [Fig.6] Schematic sectional view of the base body and the closure element before being connected during the manufacture of the wiping medium adapter device.

[0039] DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

[0040] [Fig.l] schematically shows a windshield wiper 10 intended for a vehicle. The windshield wiper 10 comprises a wiper arm 12, a wiper blade 14, two wiping medium channels 16 constituted, in particular, by pipes 18 as well that a wiper blade side adapter which is part of a wiper blade adapter 20 for the wiper blade 14. As already indicated, the term "wiping medium" is synonymous with "windshield washer fluid". The wiping medium channels 16 are guided along a wiping rod of the wiping arm 12 extending from a connection area with the vehicle to the wiper blade 14. The wiper 10 comprises a wiping medium adapter device 22 for fluidly connecting the wiping medium channels 16 to the wiper blade 14, in particular with the wiper blade adapter 20. Alternatively, a wiping medium adapter device 22 for fluidly connecting the wiping medium channels 16 with an adapter on the wiper blade side, in particular of the vehicle, or a wiper 10 comprising another wiping medium adapter device can be envisaged.

[0041] The windshield wiper 10 comprises a heating unit 24 for heating the wiping medium channels 16, in particular, to prevent freezing of the wiping medium and / or to protect the pipes 18 constituting the wiping medium channels 16.

[0042] The wiping medium adapter device 22 is fixed by a cap 26 of the wiper arm 12, in particular of a wiper arm adapter 12; it is fluidically connected to at least one channel of the wiper blade adapter 20. It could also be envisaged that the wiping medium adapter device 22 is fixed by additional fixing means (not shown in the figures) to the wiper blade adapter 20, to the cap 26 and / or to the wiper arm adapter.

[0043] [Fig. 2] is a top view of the wiping medium adapter device 22. The wiping medium adapter device 22 comprises a base body 28 delimiting two connecting areas 30, 31 for conducting the wiping medium from each respective wiping medium channel 16 of the wiper 10 to the wiper blade-side adapter, in particular the wiper blade adapter 20. The wiping medium adapter device 22 comprises a heating element 32 in the form of a heating wire for heating it. The heating element 32 is in particular part of the heating unit 24. The base body 28 delimits a passage 34 from the connecting zone 30 forming part of the two connecting zones 30, 31 to the other connecting zone 31 of the two connecting zones 30, 31. The passage 34 guides the heating element 32 from the connecting zone 30 to the other connecting zone 31.The heating element 32 passes at least practically completely through one of the wiping medium channels 16 at least partly through the connecting zone 30, through the passage 34 to arrive in the other connecting zone 31 and from this other connecting zone 31, to exit at least practically completely through the other wiping medium channel 16. Preferably, the heating element 32 is connected on the wiper arm side and / or side. vehicle to an electrical power unit (this unit is not shown in the figures).

[0044] The wiping medium adapter device 22 comprises a closing or sealing element 36 connected to the base body 28 by a material connection; it is provided to cut off the fluid communication of the connection areas 30, 31 in an area 38 of the passage 34 and to fix the heating element 32 at least partially relative to the base body 28. The closing element 36 is at least practically plate-shaped. The base body 28 delimits two recesses 40 which extend from one of the two connecting areas 30, 31 to the outer side 42 of the base body 28. The recesses 40 form the passage 34 with an outer surface 44 of the base body 28 extending on the outer side 42. The closing element 36 bears against the outer surface 44 of the base body 28 and completely covers the two recesses 40. The closing element 36 covers the outer surface 44 of the base body 28 which is located in particular between the two recesses 44.The base body 28 is made in a single piece. The base body 28 comprises a partition 46 between the two connecting zones 30, 31.

[0045] The connecting areas 30, 31 have a substantially L-shape (see [Fig. 3]) and are at least substantially parallel to each other. In particular, the two connecting areas 30, 31 each have a median plane 48 which is in the middle at least substantially parallel to the main driving direction 30 of the respective connecting area 30, 31 for the wiping medium (in [Fig. 2], the main driving direction 50 is common to both connecting areas 30, 31).

[0046] Preferably, the two recesses 40 extend in such a way that the median planes 48 of the different connecting zones 30, 31 respectively intersect at least one of the two recesses 40 which is adjacent to the respective connecting zone 30, 31. Alternatively, other embodiments of the base body 28, in particular of the connecting zones 30, 31, can also be envisaged.

[0047] The heating element 32 extends over the connecting areas 30, 31 through the two recesses 40, along the outer surface 44 of the base body 28. The outer surface 28 thus constitutes a guide surface for the heating element 32. The heating element 32 is connected to the closing element 36 by a material connection in the region of the passage 40 of the base body 28. The heating element 32 is in particular fixed to be spaced apart from the inner surfaces 52 of the base body 28 delimiting the connecting areas 30, 31 (see also [Fig. 3]). The base body 28 and the closing element 36 are made of a suitable plastic material, in particular a thermoplastic material to enable ultrasonic welding.

[0048] [Fig. 3] is a side view of the wiping medium adapter device 22; the section plane passes along the median plane 48 of the connecting zone 30; one could in particular consider a similar representation for a sectional view passing through the other connection area 31. The base body 28 delimits two connection openings 54 for connection to the wiping medium channels 16 and two connection openings 56 for connection to the wiper blade adapter 20 or alternatively another connection, for example, on the wiper arm side or on the vehicle side. The two connection areas 30, 31 are respectively delimited in particular next to the closing element 36 or the recesses 40, by one of the two connection openings 54 and by one of the two connection openings 56. The heating element 32 passes through one of the two connection openings 54 into the wiping medium adapter device 22 and exits through the other connection opening of the wiping medium adapter device 22.

[0049] The connecting orifices 56 are respectively at the ends of the connecting zones 30, 31 opposite the connecting orifices 54. The connecting zones 30, 31 each comprise in particular a connecting orifice zone 58 which extends by a straight zone of the respective connecting zone 30, 31, from one of the connecting orifices 54. The connecting zones 30, 31 comprise in particular respectively a connecting orifice zone 60 which extends respectively from one of the connecting orifices 56 by a straight zone of the respective connecting zone 30, 31. Preferably, the recesses 40 arrive at least partially at one of the connecting orifice zones 60 of the connecting zones 30, 31; in particular, the heating element 32 penetrates at least partially into the connecting orifice region 60 and / or is guided by it. This makes it possible to heat the wiping medium over an advantageously large part of the connecting regions 30, 31.Alternatively, other designs of the base body 28 can also be envisaged, in particular for the arrangement of the recesses 40; the recesses 40 are, for example, provided on the upper side of the base body 28 opposite the connecting holes 56. This allows in particular an advantageously compact design of the wiping medium adapter device 22 in an area intended for its connection to the wiper blade 14.

[0050] The closure element 36 has its maximum cross-sectional area 62 in the application area between the base body 28 and the closure element 36, as does the passage 34 in the application area (see also [Fig. 2]). In particular, the closure element 36 is connected to the outer surface 44 of the base body 28. Alternatively, it could also be envisaged to engage the closure element 36 at least partially in one of the recesses 40 or in both recesses 40.

[0051] [Fig. 4] schematically shows an example of the sequence of a method 100 for producing the wiping medium adapter device 22. In step 102 of the method 100, the base body 28 is produced. In particular, the base body 28 is produced from a thermoplastic material, preferably by an injection method. It is possible also produce the base body 28 in several parts; the base body 28 is in particular assembled in step 102. Alternatively, the parts of the base body 28 can be connected by the closure element 36. In step 104 of the method 100, in particular, practically independently of step 102, a blank 64 of the closure element 36 is produced (see Figures 5 and 6). In a further step 106 of the method, before connecting the base body 28 and the blank 64 of the closure element 36 by a material connection, the heating element 32 is inserted from the connection zone 30 through the passage 34 delimited by the base body 28 into the other connection zone 31.Preferably, the heating element 32 is passed through one of the connection orifices 54 and the connection zone 30, through one of the recesses 40, along the outer surface 44 of the base body 28 through the other recess 40 and through the other connection zone 31 to exit the other connection orifice 54 of the base body 28.

[0052] According to a further step 108 of the method 100, the base body 28 is connected to the blank 64 of the closure element 36 by a material connection (see FIGS. 5 and 6); thus, the closure element 36 separates the connection zones 30, 31 of the base body 28 from each other in the zone 38 of the passage 34 delimited by the base body 28, by a fluid separation; the heating element 32 is fixed at least in part to the base body 28. The heating element 32 is fixed by the material connection of the base body 28 and that of the blank 64 of the closure element 36, thus connecting the base body 28 and this closure element 36. The base body 28 is connected by ultrasonic welding, creating a material connection with the blank 34 of the closure element 36.In a method step 100, in particular in step 108, in order to connect the base body 28 to the closure element 36 by a material connection, the blank 64 of the closure element 36 is pressed, the edge region 66 of the blank 64 of which has at least one peripheral extension 68 (see FIGS. 5 and 6) which is pressed against the base body 28; in particular, the extension 68 acts on the outer surface 44 of the base body 28 surrounding the passage 34 (see FIGS. 5 and 6) and in particular, the extension 68 is deformed by the material connection of the blank 64 to the base body 28 (see FIGS. 2 and 5).

[0053] Figures 5 and 6 show the blank 64 of the closure element 36 and the base body 28 for producing the wiping medium adapter device 22, before the blank 64 of the closure element 36 is connected to the base body 28, in particular, each time in a manner analogous to the views of Figures 2 and 3. The blank 64 of the closure element 36 is pressed against the base body 28 to achieve the material connection by a welding jaw 70. The extension 68 of the blank 64 deforms when the blank 64 is pressed against the base body 28. Preferably, the blank 64 comes against the heating element 32 in the area of ​​the pro length 68 and in a region of the outer surface 44 of the base body 28, to be connected to the base body 28 by a material connection. The two connection regions 30, 31 and the recesses 40 are separated from each other in fluid technology in the region of the passage 34 by the closing element 36. The blank 64 of the closing element 36 is designed at least practically in the form of a plate and in particular a rectangular plate; the extension 68 extends at least practically completely along the edge region 66 of the blank 64. Preferably, the extension 68 comes completely against a lateral surface of the blank 64 of the closing element 36.

[0054] NOMENCLATURE OF MAIN ELEMENTS

[0055] 10 Windshield wiper

[0056] 12 Windshield wiper arm

[0057] 14 Windshield wiper blade

[0058] 16 Wiping medium channel

[0059] 18 Pipe

[0060] 20 Wiper blade adapter

[0061] 22 Wiping medium adapter device

[0062] 26 Cap

[0063] 28 Basic body

[0064] 30 Connection zone

[0065] 31 Connection zone

[0066] 32 Heating element

[0067] 34 Passage

[0068] 36 Closing element / plate-shaped element

[0069] 38 Passage area

[0070] 40 Recess delimited by the base body

[0071] 42 Outer side of the base body

[0072] 44 Outer surface of the base body

[0073] 46 Partition

[0074] 48 Median plane

[0075] 50 Main driving direction

[0076] 54 Connection orifice

[0077] 56 Connecting orifice

[0078] 58 Connection port area

[0079] 60 Connection port area

[0080] 62 Sectional area [0081 ] 64 Draft

[0082] 68 Extension of the basic body

[0083]

[0084]

[0085]

[0086]

[0087]

[0088]

[0089]

[0090] 100 Method for producing the wiping medium adapter device 102 Method step 100 103 Method step 100 104 Method step 100 105 Method step 100 106 Method step 100 107 Method step 100 108 Method step 100

Claims

Demands

1. Wiper medium adapter device (22) for a wiper (10) comprising at least one base body (28) defining at least two connection zones (30, 31) for conducting a wiper medium from a respective wiper medium channel (16) of the wiper (10) into an adapter on the wiper blade side or wiper arm side (10) and having at least one heating element (32) for heating the wiper medium, * the base body (28) defining at least one passage (34) from one of the two connection zones (30, 31) to the other of the two connection zones (30, 31) intended to guide the heating element (32) from the connection zone (30) to the other connection zone (31), the device characterized in that it comprises at least one closing element (36) connected to the body basic (28) by a bond by matter and intended to separate, the bonding zones (30,31) in an area (38) with at least one passage (34) and to fix the heating element (32) at least partially to the base body (28).

2. Wiping medium adapter device according to claim 1, characterized in that the heating element (32) is connected by a material bond to the closing element (36) in the area (38) of the passage (34) of the base body (28).

3. Wiping medium adapter device according to claim 1 or 2, characterized in that at least in an area close to the passage (34) the base body (28) and the closing element (36) are respectively made of a material suitable for ultrasonic welding.

4. Wiping medium adapter device according to any one of the preceding claims, characterized in that the closing element (36) is made at least practically in the shape of a plate.

5. Wiping medium adapter device according to any one of the preceding claims, characterized in that in the application zone between the base body (28) and the element of closure (36), the closure element (36) has a maximum cross-sectional area (62) larger than the passage (34) in the application area.

6. Wiper (10) comprising at least two wiping mid-channels (16) comprising at least one wiper blade side adapter and / or one wiper arm side adapter and at least one wiping mid-channel adapter device (22) according to any one of the preceding claims.

7. A method (100) for making a wiping medium adapter device (22) according to any one of claims 1 to 5, wherein in at least one step (108) of the method, the base body (28) of the wiping medium adapter device (22) is connected by a material bond with a blank (64) of the closure element (36), * the closure element (36) separating the bonding zones (30, 31) delimited by the base body (28) in the passage zone (34) from each other by a fluidic separation and the heating element (32) is fixed at least in part with respect to the base body (28).

8. Method according to claim 7, characterized in that the base body (28) is connected to the blank (64) of the closure element (36) by a material bond by ultrasonic welding.

9. A method according to claim 7 or 8, characterized in that in a process step (106), the heating element (32) is threaded from one of the links (30) through the passage (34) delimited by the base body (28) into the other linking area (31) before connecting the base body (28) and the blank (64) of the closing element (36) by a material link, * the heating element (32) being fixed between the base body (28) and the closing element (36) by the material link of the base body (28) and the blank (64) of the closing element (36).

10. Wiping medium adapter device according to any one of claims 7 to 9, characterized in at least one process step (108) consisting of connecting the base body (28) and the closing element (36) by a material bond, the blank (64) of the closing element (36) is produced which has at least one peripheral extension (68) in its edge area (66), the side equipped with the extension (68) is pressed against the base body (28), * in particular, the extension (68) which acts on the outer surface (44) of the base body (28) surrounding the passage (34).

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