A wiper apparatus which removes foreign matters from a windshield by rotating by a pivot of a vehicle may include an arm piece connected to one end of an arm retainer to connect a wiper blade, and a coupling portion having a step portion formed to extend along a longitudinal direction so that an upper surface of the arm piece and an upper surface of the arm retainer form a same surface when coupled to correspond to a coupling hole formed in the arm retainer.

The invention is directed to a wiper arm arrangement comprising a wiper bar (10), a coupling unit (12) and a fastening unit (14) for securing the coupling unit (12) to the wiper bar (10). According to the invention, the coupling unit (12) has a crimped profile (16, 54) which, in a mounted state, is to be connected to a washer fluid hose (18).

In a vehicle wiper device, a retaining portion is formed inside an arm piece at respective areas of a base end side fixing section, a main body, and a leading end side fixing section of the arm piece. A hose is retained by the retaining portion. This thereby enables the hose to be retained to the arm piece without using a retaining member, such as a holder, to retain the hose to the arm piece. Moreover, disposing the hose inside the arm piece enables the hose to be suppressed from being exposed or projecting out from the arm piece. The hose can accordingly be retained in the arm piece without having a detrimental effect on the appearance and while suppressing an increase in cost of the vehicle wiper device.

A windscreen wiper arm (1), comprising a mounting head (2) mountable on a drive shaft (3) and a first arm member (4) at one end thereof being pivotally connected to the mounting head (2) by means of a pivot pin (8) and at another end thereof being rigidly connected to a second arm member (5) arranged to be connected to an elongated wiper blade (6) to be placed in abutment with the windscreen to be wiped. The first (4) and said second (5) arm members can oscillate to-and-from between a first reversal position and a second reversal position. The second arm member (5) is made in one piece and has a substantially U-shaped cross-section defining a housing between a base and legs of said U-shaped cross-section. The housing is arranged to accommodate at least one channel (14, 15) for a washing liquid and/or electricity wiring.

A wiper device includes: lock grooves provided at an arm head and recessed toward both sides in a wiping direction of a wiper blade; and lock claws provided at an arm shank and protruding toward both sides in the wiping direction of the wiper blade. By concave-convex mating of the lock grooves and the lock claws with each other, the arm shank is restricted from rotating by degrees (about 22 degrees) or more with respect to the arm head, and a state in which the arm shank stands up by degrees (about 20 degrees), which is smaller than degrees, with respect to the arm head is maintained.