Wiper assembly for sweeping a glass surface on a vehicle
First Claim
1. A novel control system relating to a washing apparatus for washing a glass surface on a vehicle having a windshield wiper drive arm movably upwardly and downwardly relative to the glass surface, a fluid reservoir and a pump, which upon being energized, pumps fluid from the fluid reservoir, said washing apparatus comprising:
- (a) windshield washer assembly connected to the windshield wiper drive arm for controllably dispensing washer fluid onto the glass surface of the vehicle; and
(b) control means carried by the vehicle for controllably dispensing liquid from the windshield washer means immediately in advance of the direction of travel of said windshield washer means, said control means comprising sensor means operably associated with the pump for sensing the position of the wiper arm as it moves upwardly and downwardly relative to the glass surface and for energizing the pump based on the sensed position and direction of motion of said wiper drive arm, said sensor means comprising a magnetic sensor, said magnetic sensor comprising a plurality of circumferentially spaced disc magnets.
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Accused Products
Abstract
A wiper assembly for sweeping a glass surface on a vehicle. The wiper assembly includes a windshield washer assembly connected to the windshield wiper drive arm of the vehicle for controllably dispensing washer fluid directly down onto the glass surface of the vehicle. The wiper assembly also includes a novel control unit carried by the vehicle for controlling the dispensing of the washing liquid from the windshield washer assembly. Uniquely, the control unit includes a sensor that is operably associated with the pump for sensing the position of the wiper arm as it moves upwardly and downwardly relative to the glass surface and for controllably energizing the pump at selected positions of the wiper drive arm so that the washer fluid is always dispensed forwardly of the wiper blade to avoid smearing.
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Citations
4 Claims
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1. A novel control system relating to a washing apparatus for washing a glass surface on a vehicle having a windshield wiper drive arm movably upwardly and downwardly relative to the glass surface, a fluid reservoir and a pump, which upon being energized, pumps fluid from the fluid reservoir, said washing apparatus comprising:
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(a) windshield washer assembly connected to the windshield wiper drive arm for controllably dispensing washer fluid onto the glass surface of the vehicle; and (b) control means carried by the vehicle for controllably dispensing liquid from the windshield washer means immediately in advance of the direction of travel of said windshield washer means, said control means comprising sensor means operably associated with the pump for sensing the position of the wiper arm as it moves upwardly and downwardly relative to the glass surface and for energizing the pump based on the sensed position and direction of motion of said wiper drive arm, said sensor means comprising a magnetic sensor, said magnetic sensor comprising a plurality of circumferentially spaced disc magnets. - View Dependent Claims (2)
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3. A washing apparatus for washing a glass surface on a vehicle having a windshield wiper drive arm, a fluid reservoir and a pump, which upon being energized, pumps fluid from the reservoir, said washing apparatus comprising:
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(a) windshield washer means connected to the windshield wiper drive arm for controllably dispensing washer fluid onto the glass surface of the vehicle, said windshield washer means comprising; (i) a wiper blade assembly, including a wiper blade; and (ii) a washer assembly operably associated with said wiper blade assembly, said washer assembly comprising a feed conduit having a fluid inlet and at least one fluid outlet for directing fluid toward the glass surface of the vehicle; and (b) control means carried by the vehicle for controllably dispensing liquid from the windshield washer means immediately in advance of the direction of travel of said windshield washer means, said control means comprising; (i) a drive motor connected to the windshield wiper drive arm for moving the drive arm upwardly and downwardly relative to the glass surface; and (ii) sensor means operably associated with the pump for sensing the position of the wiper arm as it moves upwardly and downwardly relative to the glass surface and for energizing the pump based on the sensed position and direction of motion of said wiper drive arm, said sensor means comprising a magnetic sensor, said magnetic sensor comprising a plurality of circumferentially spaced disc magnets. - View Dependent Claims (4)
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Specification