The invention relates to a wiper device, in particular a windscreen wiper device, having a wiper arm adapter (10) and having a wiper blade adapter (12), the wiper arm adapter (10) being provided for coupling to the wiper blade adapter (12) in the main extension direction of the wiper blade adapter (12), and further having a wiper arm channel element (14) of a spray unit (34). According to the invention, the wiper arm channel element (14) is provided for coupling to a wiper blade channel element (16) of the wiper blade adapter (12) in a main extension direction of the wiper blade adapter (12).

Provided is a windshield wiper arm. This windshield wiper arm includes: an arm head (10); a shank; an arm piece connected to the windshield wiper blade; a washer nozzle which sprays a washer liquid onto the wiping surface; and a hose. The hose is divided into a first hose disposed along the arm head and a second hose disposed within the vehicle body. The first hose and the second hose are connected in a manner that washer liquid can flow from one hose to the other via a joint member (70). The arm head (10) has an opening part (10A) which opens on a fastening part 11 side, and the joint member (70) is mounted to the arm head (10) in a manner that the part of the joint member (70) that connects with the second hose penetrates the opening part (10A).

A wiper arm adapter device with at least one fluid channel (44a, 46a; 44b, 46b) for conducting a fluid, and with at least one connecting unit (48a; 48b) for connecting the fluid channel (44a, 46a; 44b, 46b) to a fluid line element (36a; 36b) of a wiper arm and/or to a wiper blade adapter (30a; 30b), wherein the connecting unit (48a; 48b) has at least one connecting element (52a, 54a; 52b, 54b) which at least partially delimits the fluid channel (44a, 46a; 44b, 46b). The connecting unit (48a; 48b) has at least one valve element (56a, 58a; 56b, 58b) which is arranged on the connecting element (52a, 54a; 52b, 54b) and is configured to form the fluidic connection of the fluid channel (44a, 46a; 44b, 46b) to the wiper blade adapter (30a; 30b) in a closeable manner.

A wiper arm device with at least one wiper arm (12), with at least one hose unit (14) which is arranged at least partially on the wiper arm (12) and comprises at least one fluid feed hose (16) and at least one wiper arm (18). The wiper arm device has at least one connecting unit (20) which fluidically connects the at least one fluid feed hose (16) and the at least one wiper arm hose (18) and which connects the at least one fluid feed hose (16) and the at least one wiper arm hose (18) to the at least one wiper arm (12), in particular is fixed thereon.

A wiper arm spoiler device having a base member (10a; 10b), having a wind deflector unit (12a; 12b) which is arranged on the base member (10a; 10b) and which has at least one wind deflector element (14a; 14b), having a coupling unit (16a; 16b) which is provided to couple the wind deflector unit (12a; 12b) to a wiper rod (18a; 18b) of a wiper arm (20a; 20b). The wiper arm spoiler device has at least one washing water channel (24a; 24b, 26b).

A wiper arm device with at least one duct connecting unit (10) for connecting at least two wiper fluid duct sections to each other, with at least one duct retaining unit (14) which can be arranged on at least one wiper arm (12) and is configured in order to retain at least the duct connecting unit (10) on the wiper arm (12) and with at least one auxiliary nozzle unit (16). The wiper arm device has a connecting unit (18) which is configured in order to connect the at least one auxiliary nozzle unit (16) detachably to the duct connecting unit (10), in particular non-destructively.

A wind deflector for a windscreen wiper system of a motor vehicle has a windscreen-cleaning apparatus with at least one nozzle for cleaning a windscreen integrated therein. The wind deflector has a wind deflector contour, by way of which an air flow in the region of an associated wiper arm and a wiper blade can be guided. The wind deflector, on its side that faces the wiper blade, has at least one wind-guiding element, which is arranged in the region of the associated nozzle and protrudes, raised, toward the windscreen.

A fluid guiding apparatus for a wiper arm of a windscreen wiper, the fluid guiding apparatus having a vehicle/arm interface in order to receive windscreen washing liquid from a source, an arm/wiper blade interface which has at least two fluid channels which are provided to supply the windscreen washing liquid to a wiper blade, at least a first and a second fluid line in order to guide the windscreen washing liquid from the vehicle/arm interface the arm/wiper blade interface and to provide it to one of the fluid channels in each case, and a heating wire which is guided at least through a portion of the first fluid line and at least through a portion of the second fluid line and which is provided to heat the windscreen washing liquid. The arm/wiper blade interface has a through-opening which connects the two fluid channels to each other. The heating wire is guided through the through-opening and the through-opening is closed with a sealing element.

Wiper arm of a windscreen wiper, the wiper arm having a first section and a second section, whereby a cover that comprises an elongated, flexible basic body, whereby the basic body covers at least a portion of the first linear section and at least a portion of the second linear section.

A windscreen wiper arm comprising a wiper arm member having a substantially U-shaped cross-section arranged to be pivotally connected to a mounting head mounted on a drive shaft, and a wiper rod having a first end rigidly connected to and extending inside said wiper arm member and a second end arranged to be connected to an elongated wiper blade to be placed in abutment with a windscreen to be wiped. The wiper arm includes a nozzle for spraying a washing liquid onto said windscreen to be wiped, where said nozzle is detachably connected to said wiper rod inside the U-shaped cross-section of the wiper arm member.