A device for converting a rotational motion into a reciprocating angular motion and a wiper system including the same include a fixed body fixed to a certain object; a rotating body rotatably connected to the fixed body and rotating around a fixed axis; and a torsion spring coupled to the fixed axis and having an end portion and an opposite end portion, the end portion being held by the fixed body and the opposite end portion being held by the rotating body.

A method of calibrating a windshield wiper system that includes moving a wiper arm, of the windshield wiper system, within at least a portion of a full range of motion defined by at least one physical boundary, determining a position of the wiper arm when it contacts the at least one physical boundary, defining, based on the determined position of the wiper arm, an operating range of motion for the wiper arm that is shorter than the full range of motion, and setting the wiper arm to operate within the defined operating range of motion.

Provided are embodiments for a direct drive wiper system. The system includes a motor that is operably coupled to a wiper system to drive one or more wiper arms of the wiper system, and a gearbox, wherein an input to the gearbox is coupled to the motor and an output of the gearbox is coupled to the wiper assembly, wherein the gearbox is configured to convert an input from the motor to an output to drive the wiper system. The system also includes a brake and stopper mechanism that is coupled to the gearbox and the wiper system. Also provided are embodiments for a method for operating the direct drive wiper system.

A device for converting a rotational motion into a reciprocating angular motion and a wiper system including the same include a fixed body fixed to a certain object; a rotating body rotatably connected to the fixed body and rotating around a fixed axis; and a torsion spring coupled to the fixed axis and having an end portion and an opposite end portion, the end portion being held by the fixed body and the opposite end portion being held by the rotating body.

A windshield wiper assembly includes a wiper blade, an output shaft, and a stop member. The output shaft is supported for rotation about a rotation axis and is fixed in rotation relative to the output shaft. The stop member is fixed in rotation relative to the output shaft and extends radially from the output shaft to limit rotation of the output shaft about the rotation axis, the stop member thereby limiting movement of the wiper blade beyond a predetermined sweep range of the wiper blade. Windshield wiper systems, aircraft with windshield wiper assemblies and systems, and methods of controlling sweep of wiper blades in windshield wiper assemblies and systems are also described.

The present invention relates to a motor vehicle's windscreen wiper, that includes a wiper blade and driving system; where the driving system includes a wiper motor, a wheel plate that pivots about a central rotational axis; where the wheel plate's angular position is associated with the wiper blade's angular position; where a parking cam on the wheel is associated with two parking contact springs with parking electrodes that press against the wheel plate surface under a resilient bias of the parking contact spring; where a parking trace is defined by a track slid by the parking electrode on the wheel plate during the wheel plate's rotation such that distances between the contact spring parking electrodes and the wheel plate's central rotation axis is substantially equal to each other such that traces of the parking electrodes generally coincide with each other; where the invention further includes a single-trace parking cam consisting of only one arc-segment such that the parking trace substantially follows a center arc by; where application of the single-trace cam is able to achieve the wiper parking function of the windscreen wiper in a compact and cost-effective manner.

A wiper device including a wiper member that includes a wiper arm to which a wiper blade is coupled, a base end portion of the wiper arm being supported by a support section provided at a vehicle, and the wiper member being configured to of undergo displacement relative to the vehicle, a drive wheel that is rotatably supported by the wiper member at a position of the wiper member which is separated from the support section, and that rolls across a running face provided at the vehicle so as to displace the wiper member relative to the vehicle, and a motor that is supported by the wiper member so as to undergo displacement together with the wiper member, and that drives rotation of the drive wheel.

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 wiper drive device includes: a drive member that is configured to cause a wiper blade to wipe a region of a windshield as a wiping operation, the region of the windshield including a to-be-imaged region of the windshield, the to-be-imaged region being included in a field of view of a camera which images a predefined imaging range near a vehicle through the windshield; and a stop section that is configured to stop the wiper blade in an outside region in response to that an anomaly that hinders the wiping operation occurs while the drive member causes the wiper blade to perform the wiping operation on the windshield, the outside region being a region of the windshield outside of the to-be-imaged region.

A windshield wiper installation system is configured to be used to install a wiper on a windshield of an aircraft. The windshield wiper installation system includes a housing, an installation control unit contained within the housing, at least one positioning member secured to the housing, wherein the installation control unit is operatively coupled to the positioning member(s), and at least one position-setting member secured to the housing, wherein the installation control unit is operatively coupled to the position-setting member(s). The positioning member(s) is configured to be engaged to move the wiper to one or more desired positions on the windshield. The position-setting member is configured to set the desired position(s) when the wiper is at the desired position(s).