Wiper arm device with at least one releasable additional nozzle unit

Abstract

The invention relates to a wiper arm device having at least one channel connection unit (10) for interconnecting at least two wiping water channel sections, at least one channel holding unit (14) which can be arranged on at least one wiper arm (12) and at least one additional nozzle unit (16), the channel holding unit being provided for holding at least the channel connection unit (10) on the wiper arm (12). Furthermore, it is proposed that the wiper arm device has a connection unit (18) which is provided for connecting the at least one additional nozzle unit (16) to the channel connection unit (10), in particular non-destructively and releasably.

Description

Technical Field

[0001] This invention relates to a wiper arm device. Background Technology

[0002] A wiper arm device has been proposed, comprising at least one channel connecting unit for interconnecting at least two wiper water channel sections, at least one channel holding unit that can be arranged on at least one wiper arm, and at least one additional nozzle unit, the channel holding unit being configured to hold at least the channel connecting unit on the wiper arm. Summary of the Invention

[0003] The present invention relates to a wiper arm device having at least one channel connecting unit for connecting at least two wiper water channel sections to each other, at least one channel holding unit that can be arranged on at least one wiper arm, and at least one additional nozzle unit, the channel holding unit being configured to hold at least the channel connecting unit on the wiper arm.

[0004] The proposed feature is that the connection unit is configured to allow the additional nozzle unit to be connected to the channel connection unit in a non-destructive and releasable manner.

[0005] The channel connection unit is preferably configured to fluidly connect at least two wiping water channel sections to each other. The channel connection unit particularly defines at least one additional wiping water channel section. The channel connection unit is preferably at least partially constructed as a pipeline connection unit. Preferably, the channel connection unit is constructed as a push-fit connection unit, a bayonet connection unit, a crimp unit, a flange connection unit, a screw connection unit, a clamping ring screw-fit unit, a compression screw-fit unit, a movable sleeve connection unit, a plug-in unit, an adhesive connection unit, and / or a sleeve connection unit. Particularly preferably, the channel connection unit has at least two coupling elements and at least two mating coupling elements. The at least two coupling elements are preferably arranged on the channel connection unit. Preferably, the at least two coupling elements are constructed as a single piece with the channel connection unit. "Single piece" should be understood in particular as formed as a single component. Preferably, this single component is made from a single blank, mass, and / or casting, particularly preferably by injection molding, especially single-component and / or multi-component injection molding or extrusion. Preferably, the at least two coupling elements are each constructed as a hose nozzle. The hose nozzle preferably has at least a partially tapered outer profile. The hose nozzle preferably has at least a partially truncated conical outer profile. Particularly preferably, the hose nozzle has an outer profile formed by at least two cones or partially cones. In particular, at least one of at least two mating coupling elements is configured for insertion into at least one of the at least two coupling elements. The at least two mating coupling elements preferably each have at least a partially cylindrical inner profile.

[0006] The wiper arm device particularly has at least one wiper water channel unit. The wiper water channel unit is preferably configured to guide wiper water. Preferably, the wiper water channel unit is configured to guide wiper water from a wiper water fluid container to at least one nozzle. The wiper water channel unit preferably has at least one wiper water channel. The wiper water channel is preferably constructed as a pipe and / or hose line. The at least one wiper water channel is preferably formed by at least two wiper water channel sections. The at least two wiper water channel sections are configured to guide on the wiper arm. Furthermore, at least one of the at least two mating coupling elements on the channel connection unit is preferably arranged on at least one of the at least two wiper water channel sections. Preferably, at least one of the at least two mating coupling elements is constructed as a single piece with at least one of the at least two wiper water channel sections.

[0007] The channel retaining unit is particularly configured for coupling with the wiper arm. Preferably, the channel retaining unit, in its coupled state with the wiper arm, is connected to the wiper arm by means of clamping connection, adhesive connection, screw connection, magnetic connection, form-fitting reception, and / or locking connection. The channel retaining unit preferably has at least two channel retaining elements. The at least two channel retaining elements are preferably each configured to retain at least one of at least two wiper water channel sections. Furthermore, the at least two channel retaining elements are preferably configured to retain and / or guide the at least two wiper water channel sections on the wiper arm, respectively. Preferably, the at least two channel retaining elements are configured to guide and / or retain at least two wiper water channel sections at least substantially parallel to the main extension axis of the wiper arm. The "main extension axis" of the object should be understood here in particular as an axis extending parallel to the longest side of the smallest geometric cuboid, which just completely surrounds the object. Preferably, at least one of the at least two wiping water channel sections is connected to at least one of the at least two channel holding elements by means of clamping connection, adhesive connection, screw connection, magnetic connection, form-fitting reception and / or locking connection while coupled to the channel holding unit.

[0008] Particularly preferably, the channel retaining unit has at least one channel connection retaining element. The at least one channel connection retaining element is preferably configured to couple the channel connection unit to the wiper arm and / or retain the channel connection unit on the wiper arm. Preferably, the at least one channel connection retaining element is configured to retain the channel connection unit by means of a clamping connection, an adhesive connection, a screw connection, a magnetic connection, a form-fitting receiving mechanism, and / or a locking connection. Alternatively, the channel connection unit can be constructed as a single piece with the channel retaining unit.

[0009] Preferably, at least one additional nozzle unit is configured to output wiping water. The at least one additional nozzle unit preferably has fluid connection to at least one of at least two wiping water channel sections. The at least one additional nozzle unit preferably has at least one additional nozzle element. The at least one additional nozzle element preferably defines at least one additional nozzle opening. Preferably, the at least one additional nozzle opening is defined at least substantially cylindrically and / or conically by the at least one additional nozzle element. The expression "at least substantially" should be understood in particular to mean at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85%, and particularly advantageously at least 95% of the closed volume, closed surface, and / or closed path of the reference object. The at least one additional nozzle unit preferably has a main spray direction. Preferably, the main spray direction is at least substantially parallel to the main extension axis of the at least one additional nozzle opening.

[0010] In particular, the connecting unit is configured to provide a connection that can be released without damage. Furthermore, the connecting unit can be configured to be destroyed upon separation. Particularly preferably, at least one additional nozzle unit and the channel connecting unit can be separated from each other without damage while connected with and / or via the connecting unit. The connecting unit is particularly configured as an adhesive connection, screw connection, magnetic connection, clamp connection, snap connection, and / or plug connection. The connecting unit preferably has at least one connecting element. At least one connecting element is preferably configured to releasably connect at least one additional nozzle unit to the channel connecting unit. Preferably, at least one connecting element is configured as a double-sided adhesive strip or permanent magnet. The connecting unit particularly has at least two connecting elements. The connecting unit preferably has at least one connecting element and at least one additional connecting element. At least one connecting element is preferably arranged on at least one additional nozzle element. At least one additional connecting element is preferably arranged on at least one channel connection retaining element. Particularly preferably, at least one connecting element is configured to releasably connect with at least one additional connecting element. Preferably, at least one connecting element can be separated from and / or releasably configured with at least one additional connecting element without damage. According to the design scheme of the present invention, a particularly advantageous and flexible wiper arm device can be achieved. The retrofitting and / or adaptability of existing wiper arm devices can be advantageously improved. Particularly advantageously, a wiper arm device that can be modified particularly easily can be provided. Particularly advantageously, a maintenance-friendly and / or low-maintenance wiper arm device can be provided. Particularly advantageously, any number of additional nozzle units for constructing the nozzle chain can be arranged on the wiper arm with particular flexibility. Furthermore, it is advantageously that the additional nozzle units can be arranged in as arbitrary a region as possible along the wiper arm to provide wiping water to specific locations on the wiper. Moreover, specific additional nozzle units can be advantageously implemented according to the specific location of the channel connection unit.

[0011] Furthermore, it is proposed that the connecting unit has a connecting axis for connecting at least one additional nozzle unit to the channel connecting unit, which extends transversely to the main extension axis of the channel connecting unit. "Transversely" should be understood here in particular as an orientation of a direction and / or axis relative to a reference direction and / or reference axis, wherein the orientation of the direction and / or axis is at least different from an orientation that is at least substantially parallel to the reference direction and / or reference axis, and is particularly inclined to or perpendicular to the reference direction and / or reference axis. Preferably, the additional nozzle unit can be connected to the channel connecting unit along the connecting axis. Preferably, at least two connecting elements can be connected and / or separated from each other along the connecting axis and / or in rotational or pivotal movements about the connecting axis. Preferably, the main extension axis of the channel connecting unit extends at least substantially parallel to the main extension axis of the wiper arm and / or the main extension axis of at least one wiper channel. "Substantially parallel" should be understood here in particular as an orientation of a direction relative to a reference direction, particularly in a plane, wherein this direction has a deviation of particularly less than 8º, advantageously less than 5º, and particularly advantageously less than 2º relative to the reference direction. According to the design of the present invention, the wiper arm device can advantageously provide a precise and targeted output of wiping water to the surface to be wiped. Furthermore, it can provide a connecting unit that can be advantageously and flexibly installed. It is advantageous to realize the series connection of additional nozzle units. Moreover, it is advantageous that the additional nozzle units can be connected to each other with the channel connecting unit regardless of their position.

[0012] Furthermore, it is proposed that the connecting unit has at least one connecting element, particularly at least one of the previously mentioned connecting elements, which is constructed as a single piece with at least one additional nozzle unit or channel connecting unit. Preferably, at least one connecting element of the connecting unit is constructed as a single piece with at least one additional nozzle element. Particularly preferably, at least one additional connecting element of the connecting unit is constructed as a single piece with at least one channel connection retaining element. In particular, at least two connecting elements are released particularly without damage when the connecting units are separated from each other. With the design according to the invention, the retrofittability of the wiper arm device can be advantageously achieved. Furthermore, the diversity of components can be advantageously kept to a minimum. Additionally, advantageously simple installability and / or removability can be provided.

[0013] Furthermore, it is proposed that the connecting unit has at least two connecting elements configured as plug-in coupling elements. Preferably, at least one connecting element is configured as a plug-in coupling element. Preferably, at least one additional connecting element is configured as another plug-in coupling element. The plug-in coupling elements are particularly configured for interconnection along the connecting axis of the connecting unit. Preferably, at least two plug-in coupling elements can be interconnected and / or separated without tools. Particularly preferably, in the connected state of the connecting unit, at least one plug-in coupling element is configured to retain at least one additional plug-in coupling element against separation movement along the connecting axis. At least one plug-in coupling element particularly has a clamping region. At least one additional plug-in coupling element preferably has a mating clamping region. Particularly preferably, the clamping region is correspondingly configured for fitting into the mating clamping region of at least one additional plug-in coupling element. At least two plug-in coupling elements are particularly configured for connection and / or separation by means of an expansion force. Preferably, the clamping region is at least partially configured for elastic deflection during installation and / or disassembly. Preferably, the clamping region is configured as a protrusion. The protrusion is preferably spring-elastically constructed. "Spring-elastic element" should be understood in particular as an element that can be repeatedly deformed without causing mechanical damage or destruction, and which automatically returns to its basic shape after deformation. Preferably, the mating clamping area is constructed as a recess. Preferably, the mating clamping area is constructed in relation to the shape of the clamping area. In particular, the protrusion is provided in the installed state of the connecting unit for receiving within the recess. Furthermore, the protrusion in the installed state is provided for establishing a form-fit and force-fit connection between at least two plug-in coupling elements. Preferably, the clamping area is constructed as a single piece with at least one plug-in coupling element. Preferably, the mating clamping area is constructed as a single piece with at least one additional plug-in coupling element. Furthermore, it is particularly conceivable that, alternatively, the mating clamping area is arranged on at least one plug-in coupling element, and the clamping area is arranged on at least one plug-in coupling element. The wiper arm device according to the present invention provides advantageous and simple replaceability of the additional nozzle element for flexible and / or position-dependent use. It offers an advantageously maintainable and user-friendly wiper arm assembly. Furthermore, it provides exceptionally high operational safety. Undesirable wear and tear can be advantageously minimized. Safe and / or flexible connection of additional nozzle units is advantageously possible. Additionally, easy-to-maneuver installation and / or removal are available.

[0014] Furthermore, it is proposed that the connecting unit has at least one connecting element, particularly at least one of the aforementioned connecting elements, which at least partially has a lens-shaped portion, on which at least one additional nozzle unit is arranged. Preferably, at least one connecting element has at least one head region. Preferably, at least one additional nozzle unit is arranged on the outer contour of at least one head region of at least one connecting unit. Particularly preferably, at least one additional nozzle unit is integrally constructed with the outer contour of at least one head region of at least one connecting unit. Preferably, at least two additional nozzle units are arranged on the outer contour. At least one head region particularly has a lens-shaped outer contour. Preferably, the outer contour is constructed as part of an elliptical surface. It is also conceivable that at least one head region has an elliptical, conical, pyramidal, spherical, cuboid, and / or cylindrical outer contour. Preferably, the outer contour is convex and / or concave. With the design according to the invention, the number of channel connecting units can be advantageously kept very small. It is particularly advantageous to achieve a flexible installation channel connecting unit. Multiple additional nozzle units can be advantageously arranged on the channel connecting unit. In addition, multiple additional nozzle units with particularly different spray directions can be provided on the channel connection unit.

[0015] Furthermore, it is proposed that the connecting unit has at least one anti-torsion element, which is configured to fix at least one additional nozzle unit and channel connecting unit in the connected state of the connecting unit to prevent rotational movement relative to each other. Preferably, at least one anti-torsion element is arranged on at least one connecting element. At least one anti-torsion element is particularly configured to fix at least one connecting element in the connected state of the connecting unit to prevent rotational movement relative to at least one other connecting element and / or channel connecting unit. Preferably, at least one anti-torsion element is at least partially constructed as a protrusion and / or a recess. Preferably, at least one anti-torsion element is constructed as a bolt or tab. Preferably, at least one anti-torsion element is arranged on at least one connecting element and / or at least one additional nozzle unit. It is also conceivable that at least one anti-torsion element is arranged on at least one other connecting element and / or channel retaining unit. The connecting unit preferably has at least one fixing receiving element. At least one fixing receiving element is configured to receive at least one anti-torsion element. Preferably, at least one fixing receiving element is constructed as a recess and / or a protrusion. Particularly preferably, at least one fixing receiving element is constructed as a bushing. Preferably, at least one fixing receiving element is constructed in relation to the shape of at least one anti-torsion element. Preferably, at least one fixed receiving element is arranged on at least one additional connecting element and / or channel holding unit. It is also conceivable that at least one anti-torsion element is arranged on at least one connecting element and / or at least one additional nozzle unit. Particularly preferably, at least one fixed receiving element is configured in the connected state of the connecting unit to accommodate at least one anti-torsion element, particularly in the direction along the connecting axis of the connecting unit. Particularly preferably, at least one fixed receiving element is configured in the connected state of the connecting unit to form-fit limit the relative movement of at least one connecting element relative to at least one additional connecting element. With the design of the wiper arm device according to the invention, particularly advantageous and reliable adaptability and / or retrofitability can be achieved. Advantageously easily modifiable wiper arm devices can be provided. The main spray direction can be advantageously and reliably preset. Furthermore, undesirable drift of the main spray direction can be avoided as much as possible. Particularly safe additional nozzle units can be provided.

[0016] Furthermore, it is proposed that at least one anti-torsion element and at least one additional nozzle unit are constructed as a single piece. In particular, at least one additional nozzle unit is constructed as a single piece with at least one connecting element and at least one anti-torsion element. Alternatively, the additional nozzle unit may also be constructed as a single piece with at least one connecting element and at least one fixing receiving element. Furthermore, alternatively, at least one additional nozzle unit may be constructed as a single piece with at least one additional connecting element and at least one anti-torsion element or at least one fixing receiving element. With the design of the wiper arm device according to the invention, simple installability and / or detachability can be advantageously achieved. The diversity of components can be advantageously kept to a very low level. Furthermore, components that are advantageously and inexpensively producible can be provided.

[0017] Furthermore, it is proposed that at least one anti-torsion element has a fluid channel for fluidly connecting at least one additional nozzle unit to the channel connecting unit. The connecting unit particularly defines the fluid channel. At least one connecting element, at least one additional connecting element, at least one anti-torsion element, at least one fixing receiving element, and / or at least one additional nozzle unit particularly at least partially define the fluid channel. Preferably, the fluid channel is defined by a circular, elliptical, rectangular, and / or polygonal cross-section, particularly defined in a plane perpendicular to the connecting axis of the connecting unit or the main extension axis of the anti-torsion element. Furthermore, the fluid channel is configured to guide wiper water. Preferably, the fluid channel is configured to guide wiper water from at least one additional wiper water channel section defined by the channel connecting unit to at least one additional nozzle unit. With the design of the wiper arm device according to the invention, structural space can be used advantageously and efficiently. Existing structural space can be used advantageously. Furthermore, a short path with low fluid resistance can be provided. Component diversity can be kept to a minimum advantageously. Mechanical and / or fluid installation steps can be advantageously combined.

[0018] Furthermore, it is proposed that the connecting unit has at least one support element, which is configured to support at least one additional nozzle unit on and / or position it relative to the wiper arm. The at least one support element preferably has at least one support surface. The at least one support surface is configured to transmit support force to the wiper arm in the coupled state of the channel connecting unit and the wiper arm, and in the connected state of the connecting unit. Furthermore, the at least one support element preferably has at least one support arm. The at least one support arm is preferably configured to connect the at least one support surface to the at least one additional nozzle unit. Preferably, the at least one support element is arranged on the at least one additional nozzle unit. Preferably, the at least one support element is fixedly connected to the at least one additional nozzle unit. Particularly preferably, the at least one support element and the at least one additional nozzle unit are integrally constructed. In particular, at least one support surface of the at least one support element is configured to orient the main spray direction of the at least one additional nozzle unit relative to the wiper arm. The design according to the invention provides a particularly advantageous and safe-to-operate wiper arm device. A wiper arm device that can be flexibly installed can be advantageously achieved. The wiper arm device is advantageously as independent as possible of the geometry of the wiper arm. Particularly reliable retrofitability can be advantageously achieved. Additional nozzle elements can be installed and / or modified advantageously, reliably, and / or safely.

[0019] Furthermore, a connecting unit according to the invention is proposed. Through the design of the connecting unit according to the invention, a secure connection of the additional nozzle unit can be advantageously achieved. A particularly advantageous and secure connection possibility can be provided. Wear and / or loosening can be advantageously prevented.

[0020] Furthermore, a channel connection unit according to the invention is proposed. The channel connection unit preferably has at least one valve element. The at least one valve element is preferably configured as a three-way valve. The valve element is particularly configured to release or interrupt the wiping water flow to at least one additional nozzle unit. Furthermore, the valve element is preferably configured to release or interrupt the wiping water flow from at least one wiping water channel section to at least one additional wiping water channel section. With the design according to the invention, a channel connection unit that can be installed with particular flexibility can be provided. Particularly simple retrofitting is possible. Furthermore, particularly high operational safety can be provided.

[0021] Furthermore, an additional nozzle unit according to the invention is proposed. At least one additional nozzle unit preferably has at least one spray valve element. At least one spray valve element is preferably arranged on the end side of the additional nozzle opening. At least one spray valve element is configured to change the spray width of the output squeegee water jet. At least one spray valve element is particularly configured to change the cross-section of the additional nozzle opening. Preferably, at least one spray valve element is configured to change the cross-section between the closed state of at least one spray valve element and the maximum cross-section of at least one additional nozzle opening. Preferably, at least one spray valve element is configured to focus and / or defocus the output squeegee water jet. With the design according to the invention, squeegee water consumption can be advantageously kept to a very low level. Particularly advantageous and efficient output of squeegee water can be achieved.

[0022] Furthermore, a glass wiper device with a wiper arm device according to the invention is proposed. The glass wiper device preferably has a wiper arm adapter disposed on the wiper arm. Furthermore, the glass wiper device preferably has at least one wiper blade and a wiper blade adapter disposed on the wiper blade. The wiper arm adapter is particularly configured for coupling with the wiper blade adapter. Preferably, the wiper blade can be coupled to the wiper arm via coupling the wiper blade adapter to the wiper arm adapter. The glass wiper device particularly has a wiping water channel unit. The wiping water channel unit preferably has at least one wiping water container, at least one wiping water channel, and / or at least one wiping water pump. The wiping water channel is preferably configured to guide wiping water from the wiping water container to the spray nozzle and / or additional spray nozzle. The wiping water pump is preferably configured to transport wiping water from the wiping water container to at least one wiping water channel. With the design according to the invention, a particularly advantageously flexible and / or easily modular glass wiper device can be provided. Additional spray nozzles can be advantageously and easily retrofitted. Furthermore, it can achieve exceptionally high efficiency in wiping water output.

[0023] The wiper arm device according to the present invention should not be limited to the applications and embodiments described above. The wiper arm device according to the present invention may, in order to fulfill the functional modes described herein, have quantities different from the quantities of the various elements, components, and units mentioned herein. Furthermore, values ​​within the mentioned limits regarding the value ranges described in this disclosure should be considered as disclosed and are considered as freely usable. Attached Figure Description

[0024] Further advantages are described in the following figures, in which embodiments of the invention are illustrated. The figures, description, and claims contain a large number of combined features. Those skilled in the art will also readily observe these features individually and generalize them into other meaningful combinations.

[0025] in:

[0026] Figure 1 A glass wiper device having a wiper arm device according to the present invention is illustrated in schematic diagram;

[0027] Figure 2 The schematic diagram shows a channel connection unit having two channel connection elements and two wiping water channel sections;

[0028] Figure 3 A cross-sectional view is shown along cutting line II-II through the wiper arm device according to the invention; and

[0029] Figure 4 A cross-sectional view of the connecting element passing through the connecting unit according to the invention is shown. Detailed Implementation

[0030] Figure 1 A schematic overview diagram of a windshield wiper device 40 is shown. In this case, the windshield wiper device 40 is configured as a vehicle windshield wiper, particularly as a motor vehicle windshield wiper. The windshield wiper device 40 is shown in an installed state. The windshield wiper device 40 is provided, at least in a clean operating state, for cleaning water and / or dirt from the wiping surface. In this case, the wiping surface is constructed of glass, particularly vehicle glass. It is also conceivable, in principle, that the glass is constructed as window glass.

[0031] In addition, the windshield wiper assembly 40 has a wiper arm 12. The wiper arm 12 has a main extension axis. In the installed state, the main extension axis of the wiper arm 12 is at least substantially parallel to the cleaning surface.

[0032] The windshield wiper assembly 40 includes a wiper blade 36. In its installed state, the wiper blade 36 is shaped to fit the wiping surface. The wiper blade 36 has a main extension axis. The main extension axis of the wiper blade 36 is at least substantially parallel to the wiping surface. Furthermore, the main extension axis of the wiper blade 36 is at least substantially parallel to the main extension axis of the wiper arm 12. The wiper blade 36 is configured, at least in a clean operating state, to remove water and / or dirt from the wiping surface.

[0033] The windshield wiper device 40 further includes a wiper blade adapter 38. The wiper blade adapter 38 has a contact area for a wiper blade 36. The wiper blade adapter 38 is configured to connect the wiper blade 36 to a wiper arm 12. The wiper arm 12 has a wiper arm adapter 34. The wiper arm adapter is configured to couple with the wiper blade adapter 38.

[0034] The windshield wiper assembly 40 has at least one main nozzle unit 46. The main nozzle unit 46 is configured to apply wiping water to the wiping surface. The main nozzle unit 46 is configured to apply wiping water in the central region of the wiper blade 36. The main nozzle unit 46 is arranged in the region of the wiper blade adapter 38. The main nozzle unit 46 has at least one nozzle element (not shown). In this case, the main nozzle unit 46 is configured as a multi-beam nozzle unit, which includes a plurality of nozzle elements. Here, the nozzle elements can be arranged in a row. In this case, the nozzle elements are arranged in a fan shape.

[0035] Furthermore, the windshield wiper assembly 40 includes a wiping water channel unit 42. The wiping water channel unit 42 includes a wiping water container and a wiping water pump (not shown in detail). Additionally, the wiping water channel unit 42 includes a wiping water channel 44. The wiping water channel 44 is configured to guide wiping water. The wiping water channel 44 is configured to guide wiping water from the wiping water container at least to the main nozzle unit 46. The wiping water channel 44 extends along the wiper arm 12. The wiping water channel 44 is fluidically connected to the wiping water container. The wiping water channel 44 is positioned along the wiper arm 12. The wiping water channel 44 extends substantially parallel to the main extension axis of the wiper arm 12. The wiping water channel 44 may be constructed from mutually separate wiping water channel sections 48, 50.

[0036] Furthermore, the windshield wiper assembly 40 includes a wiper arm assembly 32. The wiper arm assembly 32 includes a channel connecting unit 10. The channel connecting unit 10 is configured to connect two wiping water channel sections 48 and 50. Additionally, the wiper arm assembly 32 includes a channel holding unit 14. The channel holding unit 14 is configured to hold the channel connecting unit 10 onto the wiper arm 12. The channel connecting unit 10 is configured to couple with the wiper arm 12 via the channel holding unit 14. The channel connecting unit 10 has a channel connection holding element 52 configured as a one-piece clamping connecting element. In the coupled state, the one-piece clamping connecting element 52 largely surrounds the wiper arm 12. Furthermore, the one-piece clamping connecting element 52 is configured in the coupled state to clamply hold the channel holding unit 14. Additionally, the channel connecting unit 10 has two channel connecting elements 54 and 56. The channel connecting elements 54 and 56 each have a frustoconical region. The channel connecting elements 54 and 56 are configured to couple with the wiping water channel sections 48 and 50. With one of the channel connecting elements 54, 56 coupled to one of the wiping water channel sections 48, 50, the end of one of the wiping water channel sections 48, 50 moves on a frustoconical region. The frustoconical region is configured to prevent sliding of one of the wiping water channel sections 48, 50 and / or undesirable separation of one of the wiping water channel sections 48, 50 from one of the channel connecting elements 54, 56.

[0037] The wiper arm assembly 32 also has three additional nozzle units 16. Furthermore, the wiper arm assembly 32 has a connecting unit 18. The connecting unit 18 is configured for non-destructively and releasably connecting the three additional nozzle units 16 to the channel connecting unit 10. The connecting unit 18 has a connecting axis 20 for connecting the three additional nozzle units 16 to the channel connecting unit 10. The connecting unit 18 has two connecting elements 22 and 24. The connecting unit 18 has a first connecting element 22 and a second connecting element 24. The first connecting element 22 is configured for connecting to the second connecting element 24 along the connecting axis 20. The connecting axis 20 extends transversely to the main extension axis of the channel connecting unit 10.

[0038] The first connecting element 22 is arranged on the three additional nozzle units 16. The three additional nozzle units 16 and the first connecting element 22 are constructed as a single piece. In the separated state of the connecting unit 18, the first connecting element 22 is constructed as a single piece with the three additional nozzle units 16 or the channel connecting unit 10.

[0039] Furthermore, the first connecting element 22 is configured as a first plug-in coupling element 58. The second connecting element 24 is configured as a second plug-in coupling element 60. The second plug-in coupling elements 58 and 60 are provided for interconnection along the connecting axis 20 of the connecting unit 18. The first plug-in coupling element 58 is constructed as a single piece with the three additional nozzle units 16. Furthermore, the first plug-in coupling element 58 is cylindrical in shape. Furthermore, the first plug-in coupling element 58 has a clamping region 62. The clamping region 62 is constructed as a recess defined by the first plug-in coupling element 58. The recess is circumferentially constructed around the connecting axis 20 on the peripheral surface of the first plug-in coupling element 58. The second plug-in coupling element 60 is constructed as a gap defined by a cylindrical profile in the channel connecting unit 10. The cylindrical profile of the second plug-in coupling element 60 has a mating clamping region constructed as a protrusion 64. The protrusion 64 is constructed as a single piece with the channel connecting unit 10. The protrusion 64 is shaped in relation to the clamping region 62. The protrusion 64 is provided for fitting into the clamping region 62 when the two plug-in coupling elements 58, 60 are connected. The protrusion 64 is configured to be compressed during installation and / or removal. Furthermore, the protrusion 64, when the plug-in coupling elements 58, 60 are connected, is configured to retain the first plug-in coupling element 58 in a form-fitting and force-fitting manner. Alternatively, the protrusion 64 is arranged on the first plug-in coupling element 58, and the clamping region 62 is arranged on the second plug-in coupling element 60. Furthermore, it is alternatively conceivable that the protrusion 64 is replaceable or configured as a spring coil.

[0040] Furthermore, the first connecting element 22 has a linsenform 66. A first plug-in coupling element 58 is formed onto the linsenform 66. Additionally, three additional nozzle units 16 are arranged on the linsenform 66. The three additional nozzle units 16 are integrated into the linsenform 66.

[0041] Furthermore, the connecting unit 18 has an anti-torsion element 26. The anti-torsion element 26 is configured to fix the three additional nozzle units 16 and the channel connecting unit 10 in the connected state of the connecting unit 18, preventing rotational movement relative to each other. The anti-torsion element 26 is arranged on the first connecting element 22. The anti-torsion element 26 is eccentrically arranged on the first connecting element 22 relative to the connecting axis 20. Furthermore, the anti-torsion element 26 is constructed as a single piece with the first connecting element 22. Additionally, the second connecting element 24 has a receiving opening for receiving the anti-torsion element 26. The receiving opening is configured to form-fit the anti-torsion element 26. In the connected state of the connecting unit 18, the anti-torsion element 26 is engaged with the receiving opening. In the connected state of the connecting unit 18, the rotational movement of the first connecting element 22 and the three additional nozzle units 16 relative to the second connecting element 24 is limited by the form-fitting engagement of the anti-torsion element 26 with the receiving opening.

[0042] In addition, the anti-torsion element 26 and the three additional nozzle units 16 are constructed as a single piece.

[0043] The anti-torsion element 26 at least partially limits the fluid channel 28. Furthermore, the fluid channel 28 is limited by the first connecting element 22. The fluid channel 28 is integrally constructed with the anti-torsion element 26 and the first connecting element 22. The fluid channel 28 has a fluid connection with the channel connection unit 10. The fluid channel 28 also has a fluid connection with three additional nozzle units 16. The fluid channel 28 is configured to fluidly connect the channel connection unit 10 to the three additional nozzle units 16.

[0044] Furthermore, the connecting unit 18 has a support element 30. The support element 30 is configured to support the additional nozzle units 16 on the wiper arm 12. Additionally, the support element 30 is configured to position the three additional nozzle units 16 relative to the wiper arm 12. The support element 30 is arranged on the first connecting element 22. Furthermore, the support element 30 is fixedly connected to the first connecting element 22. The support element 30 has a material fusion connection with the lens-shaped portion 66 of the first connecting element 22. Furthermore, the support element 30 has a support surface 68. The support surface 68 is configured to abut against the side wall of the wiper arm 12 in both the connected state of the connecting unit 18 and the coupled state of the channel holding unit 14 and the wiper arm 12. The side wall of the wiper arm 12 and the support surface 68 are shaped in relation to each other. In both the connected state of the connecting unit 18 and the coupled state of the channel holding unit 14 and the wiper arm 12, the support surface 68 is planarly located on the side wall of the wiper arm 12. The support surface 68 is fixedly connected to the lens-shaped portion 66 and three additional nozzle units 16 disposed thereon via a support arm 70. The support arm 70 is configured to transmit the supporting force from the support surface 68 to the first connecting element 22. Alternatively, it is conceivable that the first connecting element 22 and the support element 30 are constructed as a multi-piece unit.

Claims

1. A wiper arm device comprising at least one channel connecting unit (10) for interconnecting at least two wiper water channel sections, at least one channel holding unit (14) arrangable on at least one wiper arm (12), and at least one additional nozzle unit (16), said channel holding unit being configured to hold at least the channel connecting unit (10) on the wiper arm (12), characterized in that A connecting unit (18) is configured to connect at least one additional nozzle unit (16) to the channel connecting unit (10) in a non-destructive and releasable manner. The connecting unit (18) has at least one anti-torsion element (26) configured to fix at least one additional nozzle unit (16) and the channel connecting unit (10) in the connected state of the connecting unit (18) to prevent them from rotating relative to each other.

2. The wiper arm device according to claim 1, characterized in that, The connecting unit (18) has a connecting axis (20) for connecting at least one additional nozzle unit (16) to the channel connecting unit (10), the connecting axis extending transversely to the main extension axis of the channel connecting unit (10).

3. The wiper arm device according to claim 1 or 2, characterized in that, The connecting unit (18) has at least one connecting element (22), which is constructed as a single piece with at least one additional nozzle unit (16) or channel connecting unit (10).

4. The wiper arm device according to claim 1 or 2, characterized in that, The connection unit (18) has at least two connection elements (22, 24) configured as plug-in coupling elements.

5. The wiper arm device according to claim 1 or 2, characterized in that, The connecting unit (18) has at least one connecting element (22), which has at least a portion of a lens-shaped portion (66), on which at least one additional nozzle unit (16) is arranged.

6. The wiper arm device according to claim 1, characterized in that, At least one anti-torsion element (26) and at least one additional nozzle unit (16) are constructed as a single piece.

7. The wiper arm device according to claim 1 or 6, characterized in that, At least one anti-torsion element (26) has a fluid channel (28) for fluid connection of at least one additional nozzle unit (16) to the channel connection unit (10).

8. The wiper arm device according to claim 1 or 2, characterized in that, The connecting unit (18) has at least one support element (30) configured to support at least one additional nozzle unit (16) on and / or position it relative to the wiper arm (12).

9. The connecting unit of the wiper arm device according to any one of the preceding claims.

10. The channel connection unit of the wiper arm device according to any one of claims 1 to 8.

11. An additional nozzle unit for the wiper arm device according to any one of claims 1 to 8.

12. A windshield wiper device having at least one wiper arm device according to any one of claims 1 to 8, a wiper arm adapter (34) disposed on the wiper arm (12), a wiper blade (36), and a wiper blade adapter (38) disposed on the wiper blade (36) for coupling with the wiper arm adapter (34).

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