An object of the present invention is to provide a wiper apparatus reduced in the number of parts. A wiper apparatus 40A has: a drive mechanism 13 for driving a wiper 12 for wiping a front windshield of a vehicle; a gear case 17 in which the drive mechanism 13 is housed, and which is fixed to a vehicle body, wherein the wiper apparatus 40A has: a fixing part 35 provided in the gear case 17 and fixed to the vehicle body; and a fixing part 36 provided in the gear case 17 and fixed to the vehicle body at a position different from a fixed position of the fixing part 35 in a longitudinal direction of the vehicle body.

Disclosed is an aircraft windshield wiper system, having: a wiper arm; a reversible motor that drives the wiper arm, the motor including: a stator; a rotor configured to rotate relative to the stator; a forward shaft segment that is driven by the rotor and being rotationally connected to the wiper arm; an aft shaft segment that is driven by the rotor, the aft shaft segment including a forward end and an aft end; a ball nut that translates along the aft shaft segment from rotation of the aft shaft segment; a forward stop at a forward end of the aft shaft segment, configured to stop forward translational motion of the ball nut along the aft shaft segment; and an aft stop at an aft end of the aft shaft segment, configured to stop aft translational motion of the ball nut along the aft shaft segment.

In accordance with at least one aspect of this disclosure, a system includes a wiper drive shaft configured to drive a wiper arm between a start position and an end sweep position. The wiper drive shaft includes external threads defined therein and at a distal end thereof. An axial length of the external threads along the wiper drive shaft defines the start position and the end sweep position, and a total desired sweep angle between the start position and end sweep position. The wiper drive shaft includes and a first hard stop groove and a second hard stop groove, each defined at a respective first axial offset and a second axial offset from the external threads to define a first hard stop position and second hard stop position.

A wiper motor includes a reduction mechanism (26) contained in a reduction mechanism containing chamber (27) of a gear frame (21) and configured to reduce and transmit a rotation to a worm wheel (35); and a motion conversion mechanism (29) contained in a motion conversion mechanism containing chamber (30) of the gear frame (21) and configured to convert and output a rocking motion to an output shaft (28). A support surface (37) set up flush with the other end surface (35b) of the worm wheel (35) in the axial direction rotatably contained in the reduction mechanism containing chamber (27) is formed on the inner surface of the bottom wall (30a) of the motion conversion mechanism containing chamber (30). The support surface (37) is formed over the entire area facing a pinion gear (40) and the motion conversion member (41) on the bottom wall (30a) of the motion conversion mechanism containing chamber (30).

The present invention relates to a geared motor unit (1) for a motor vehicle wiper system, the geared motor unit comprising: an electric motor (3) housed in a casing (4), a reduction gear mechanism (5) connected to the electric motor (3), a mount (9)receiving the reduction gear mechanism (5), a fixing plate (11) and/or a closure pate (110) intended to be fixed on the one hand to the mount (9) and on the other hand to a structural element of the vehicle,
in which, out of the following elements: the fixing pate (11), the closure pate (110), the mount (9), and the casing (4),
at least one is made of a laminated composite material (39) comprising at least two layers (C1, C2, C3) of material and of which at least one of the layers (C2) is made from a viscoelastic material.

A windshield wiper system for an aircraft is provided and includes a motor, an output shaft, a wrap spring and crank rocker mechanism (WSCRM) to which the motor and the output shaft are coupled and a controller. By way of the WSCRM, first directional rotation input to the WSCRM from the motor via a two-stage gear reduction is converted such that the output shaft drives wiper blade oscillation through a first sweep angle and second directional rotation input to the WSCRM from the motor is converted such that the output shaft drives wiper blade oscillation through a second sweep angle. The controller is configured to control the motor such that the first directional rotation is continuously or non-continuously input during first or second flight conditions, respectively, and the second directional rotation is continuously input during third flight conditions.

A brushless motor comprises: a stator 21 having armature coils 21a, 21b, and 21c; a rotor 22 which is rotated by a revolving magnetic field; and a switching element 30a, wherein the brushless motor has a rotation number control unit 33 which switches between low-speed and high-speed mode, wherein in the low-speed mode, the rotation number control unit 33 supplies current to the armature coils 21a, 21b, and 21c at predetermined energization timing and controls a duty ratio to control the rotation number of the rotor 22, and in the high-speed mode, the rotation number control unit 33 supplies current to the armature coils 21a, 21b, and 21c at energization timing advanced from the energization timing for the low-speed mode, thereby performing field weakening control of weakening the revolving magnetic field from that of the low-speed mode to control the rotation number of the rotor 22.

Method for controlling a system for wiping and washing a window (2) of a vehicle, comprising at least two wiping cycles comprising: a first step in which the wiper blade member (1) is actuated in order to move over the window (2) between a first starting position (P0) and an end position (P2), and a second step in which the wiper blade member (1) is actuated in order to move over the window (2) in the opposite direction from the end position (P2) as far as a second starting position (P1),
characterised in that the first cycle which is carried out wipes all the wiping zone with means (10, 13, 14) for projecting a washing liquid which are actuated at least during the first step, and in that a second wiping cycle has the same first starting position (P0) and a second starting position (P1) which is offset towards the end position (P2) relative to the first starting position (P0).

The invention relates to a windscreen wiper motor (10), having a housing (12) for accommodating a gearing arrangement which comprises a gear wheel (20) rotatably mounted in a shaft (13), which gear wheel has, on its outer circumference, a toothing (21) which interacts with a counterpart toothing (19) on a drive shaft (15), wherein the shaft (13) is received in a mount (22; 22a to 22c), which is constructed as a bore, of the housing (12) in an eccentric bush (25; 25a to 25c) for setting the distance (a) between the shaft (13) and the drive shaft (15), and wherein a press fit is formed at least in regions between the mount (22; 22a to 22c) and the eccentric bush (25; 25a to 25c).

System for wiping a vehicle window, the said window being equipped with a sensor, comprising a first wiper (15) which can wipe a first area of the window, including a portion (8, 8) which extends at the level of the said sensor, a second wiper (13) which can wipe a second area of the window, different from the said first area, means for activation of the said first and second wipers for the purpose of their displacement on the window, and electronic means for control of the said means for activation, characterized in that the said means for activation comprise a first motor for activation of the said first wiper, and a second motor for activation of the said second wiper, and in that the said control means are configured to activate only the said first motor when cleaning of the said portion is required.