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EP-3902722-B1 - WIPER BLADE DEVICE

EP3902722B1EP 3902722 B1EP3902722 B1EP 3902722B1EP-3902722-B1

Inventors

  • CAMPSTEYN, MATTHEW
  • DEPONDT, HELMUT

Dates

Publication Date
20260513
Application Date
20191220

Claims (7)

  1. Wiper-blade device having at least one wind-deflector unit (12), having at least one fluid channel (14, 14') which is formed at least partially by the wind-deflector unit (12), and having at least one end-cap unit (16) which is intended for lateral delimitation of the wind-deflector unit (12) and for at least partial covering of an end of the wind-deflector unit (12), wherein the at least one end-cap unit (16) is of multi-part, in particular two-part, form and has at least one end-cap element (18) and at least one seal element (20), which is intended for at least substantial sealing of an end, directed towards the end-cap unit (16), of the at least one fluid channel (14, 14'), wherein the end-cap element (18) is intended for securing of the seal element (20) to the wind-deflector unit (12), wherein the seal element (20) has a cross-sectional shape which at least substantially resembles the cross-sectional shape of the wind-deflector unit (12) and the cross section of the end-cap element (18) at least substantially resembles the cross section of the wind-deflector unit (12), characterized in that the end-cap element (18) is intended for covering of an end of the wind-deflector unit (12).
  2. Wiper-blade device according to Claim 1, characterized in that the end-cap element (18) is intended for pressing of the seal element (20) onto the wind-deflector unit (12) with a press fit in a mounted state.
  3. Wiper-blade device according to either of the preceding claims, characterized in that the at least one fluid channel (14) is intended for guidance of wiping liquid (22) and for dispensing of the wiping liquid (22).
  4. Wiper-blade device according to one of the preceding claims, characterized in that the wind-deflector unit (12) forms a fixing cutout (24) which is different from the at least one fluid channel (14, 14'), said fixing cutout being intended for at least partially form-fitting fixing of the at least one seal element (20) of the end-cap unit (16).
  5. Wiper-blade device according to one of the preceding claims, characterized in that the fixing cutout (24) has a substantially triangular cross-sectional shape.
  6. Wiper-blade device according to one of the preceding claims, characterized in that the seal element (20) comprises at least one fixing extension (26) which is intended for connection to the at least one wind-deflector unit (12).
  7. Wiper-blade device according to one of the preceding claims, characterized in that the fixing extension (26) has a substantially triangular cross-sectional shape.

Description

State of the art A wiper blade device with at least one wind deflector unit with at least one fluid channel, which is at least partially formed by the wind deflector unit, and with at least one end cap unit, which is intended to laterally limit the wind deflector unit and at least partially cover one end of the wind deflector unit, has already been proposed. Further state of the art is represented by the WO 11029660 A1 , the US 9,802,576 B2 , the US 2018/126956 A1 , the US 2013/0205531 A1 and the FR 2 920 729 A1 became known. Disclosure of the invention The invention relates to a wiper blade device with at least one wind deflector unit having at least one fluid channel, which is at least partially formed by the wind deflector unit, and with at least one end cap unit, which is provided to laterally delimit the wind deflector unit and to at least partially cover one end of the wind deflector unit. The invention is defined in claim 1. It is proposed that the at least one end cap unit be designed in multiple parts, in particular in two parts, and have at least one end cap element and at least one sealing element, which is provided to seal at least substantially one end of the at least one fluid channel facing the end cap unit, wherein the end cap element is provided to secure the sealing element to the wind deflector unit. In this context, the term "wiper blade assembly" shall be understood to mean, in particular, at least a part, especially a subassembly, of a wiper blade, in particular a windshield wiper blade, and advantageously a vehicle windshield wiper blade. In particular, the wiper blade assembly may also comprise the entire wiper blade, in particular the entire windshield wiper blade, and advantageously the entire vehicle windshield wiper blade. It is conceivable that the wiper blade assembly may be designed, at least as part of a wiper blade, in a flat-beam construction. Preferably, the wiper blade assembly is intended for use on a vehicle. Preferably, the wiper blade assembly is intended for cleaning a surface, in particular a windshield, on a vehicle. In particular, the wiper blade assembly for cleaning a vehicle windshield is coupled to a vehicle, in particular to a wiper arm of a vehicle. "Coupled" in this context shall be understood to mean, in particular, positively and/or force-fitted. "Provided for" shall be understood to mean, in particular, specially configured, specially designed, and/or specially equipped. The fact that an object is intended for a specific function should be understood in particular to mean that the object fulfills and/or performs this specific function in at least one application and/or operating state. The wiper blade assembly comprises at least one wind deflector unit. In this context, a "wind deflector unit" is understood to mean, in particular, a unit designed to deflect airflow or wind acting on the wiper blade assembly and/or to press the wiper blade against the surface to be wiped. Preferably, the wind deflector unit consists at least partially of rubber and/or of a partially elastic plastic. Preferably, the wind deflector unit has at least one concave front surface. Preferably, the concave front surface faces a direction of travel, at least in one mounted state. The wind deflector unit differs, in particular, from an end cap, a wiper lip, and/or a wiper blade adapter. Advantageously, in an operating state, the wind deflector unit extends over at least a portion, preferably at least one The majority of the wiper blade assembly extends along its main direction of extension. Preferably, the wind deflector unit is formed in one piece. Preferably, the wiper blade device comprises at least one, preferably at least two, and in particular exactly two, fluid channel(s). The fluid channels are formed, in particular, by channels, preferably cylindrical channels, in the wind deflector unit. The fluid channels are, in particular, materially bounded by the wind deflector unit. A "fluid channel" is understood to mean, in particular, a channel-like recess in at least one element of the wiper blade device, designed for guiding a fluid. Preferably, the fluid channel can have at least one outlet opening, in particular a plurality of outlet openings, which is provided for dispensing fluid, in particular a washing liquid. Preferably, the fluid channel, in the operating state, is designed to transport fluid arriving at one end of the fluid channel from one end of the fluid channel to an end of the fluid channel opposite that end, with the fluid, in particular, flowing through the fluid channel. Preferably, the wiper blade device, in particular the fluid channel, is designed to dispense wiping liquid in at least one wiping direction. The term "wiping direction" is advantageously understood to mean the direction in which the wiper blade moves across a surface, preferably a disc, particularly a vehicle windshield, relative to that surface. Preferably, the fluid channel has a cross-sectio