A wiper arm includes a spring for applying a biasing force to the rotation of an arm main body with respect to an arm head and enables the thickness of the wiper arm to be thinner while ensuring the suitable biasing force. The wiper arm also includes a coil spring and a spring plate. The arm main body includes a hinge block rotatably connected to the arm head through a hinge pin and a shaft section extending from the hinge block. The spring plate includes a front end wall including an insertion hole into which the shaft section is inserted and leg sections rotatably attached to the arm head through a roller pin. The coil spring is disposed to be coaxial with the shaft section and is held to be sandwiched between the front end surface of the hinge block and the front end wall of the spring plate.

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.

A wiper device includes a wiper arm and a drive section. The wiper arm has a base end portion supported by a support section provided at a vehicle, and is configured such that a wiping surface of the vehicle is wiped back and forth by a wiper blade coupled to a leading end portion of the wiper arm. The drive section is configured to displace at least a leading end portion side of the wiper arm in an up-and-down direction with respect to the wiping surface during back and forth movement of the wiper arm, irrespective of force the wiper blade receives from the wiping surface.

A wiper arm and a windscreen wiper system, wherein the wiper arm comprises a joint part and a lever part and a spring, wherein the parts form a common joint. The spring is embodied here as a torsion spring.

The present invention relates to a windscreen wiping device (100) for a vehicle, comprising a wiper blade (2) with an elongate upper part (10) and an elongate lower part (12), which are configured to be at least partially bendable. Furthermore, a plurality of connecting elements (18) for connecting the upper part (10) and the lower part (12) are provided, said connecting elements being spaced apart from one another along a longitudinal extent (8) of the wiper blade (2) and being designed to permit a movement of the upper part (10) and of the lower part relative to each other with a movement component along a longitudinal extent (8) of the wiper blade (2). Furthermore, the windscreen wiping device (100) comprises a fastening device. The fastening device comprises a wiper-blade-side fastening part (20) and a fastening element (50). The wiper-blade-side fastening part (20) and the fastening element (50) are configured in such a manner that, by means of rotation of the wiper-blade-side fastening part relative to the fastening element, an engagement can be formed in order to fix a position of the wiper-blade-side fastening part relative to the fastening element.

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 relates to a windshield wiper device (100) for a vehicle, comprising a wiper blade (2) having an elongated upper part (10) and an elongated lower part (12), which are configured to be flexible, at least in part. Furthermore, the device comprises a plurality of connecting elements (18) for connecting the upper part (10) and the lower part (12), which are spaced apart from each other along a longitudinal extension (8) of the wiper blade (2), and which are configured to allow a movement of the upper part (10) and the lower part relative to one another with a motion component along a longitudinal extension (8) of the wiper blade (2). The windshield wiper device (100) further comprises a fastening device. The fastening device comprises a wiper-blade-side fastening part (20) and a fastening element (50). The wiper-blade-side fastening part (20) and the fastening element (50) are configured in such a manner that, by means of rotation of the wiper-blade-side fastening part relative to the fastening element, an engagement can be formed in order to fix a position of the wiper-blade-side fastening part relative to the fastening element.

There is provided a wiper arm which includes biasing means for applying a suitable biasing force to the rotation of an arm main body with respect to an arm head and enables the thickness of the wiper arm to be thinner while ensuring the suitable biasing force. A wiper arm 1 includes an arm head 2, an arm main body 3, a coil spring 4, and a spring plate 5. The arm main body 3 includes a hinge block 21 rotatably connected to the arm head 2 through a hinge pin 15 and a shaft section 22 extending from the hinge block 21. The spring plate 5 includes a front end wall 31 including an insertion hole 33 into which the shaft section 22 is inserted and leg sections 32A, 32B which are rotatably attached to the arm head 2 through a roller pin 18. The coil spring 4 is disposed to be coaxial with the shaft section 22 and is held to be sandwiched between the front end surface 21c of the hinge block 21 and the front end wall 31 of the spring plate 5.

The invention relates to a wiper arm device with an integrally formed wiper arm element (10) which is provided with a fastening part (12) for articulated connection and which has at least one wiper arm element portion (14) with a longitudinal extent of at least 10% of the total longitudinal extent of the wiper arm element (10). According to the invention, it is proposed that the wiper arm element portion (14) has a cross-section that differs from an at least substantially U-shaped cross-section.

A windscreen wiper arm, particularly for automobiles, includes a mounting head mountable on a drive shaft and an arm member pivotally connected to the mounting head by means of a pivot pin. The arm member has a substantially U-shaped cross-section near the pivot pin comprising two side walls. A part of the mounting head extends between the side walls and beyond the pivot pin. Protrusion/groove features are provided on the part and the side walls for limiting a pivot angle of the arm member. The protrusion/groove means comprise at least one groove and at least one protrusion cooperating with the groove, the protrusion is movable in the groove between a first position corresponding with a wiping position of the arm member and a second position corresponding with a mounting position of the arm member. The part is provided with opposite abutting surfaces for abutting against the side walls. The protrusion extends laterally inwardly from one of the side walls into the groove being provided on one of the abutting surfaces abutting against that respective side wall. The groove has a width larger than a width of the protrusion.