Windshield cleaning system with pipe and conductor in wiper shaft
First Claim
1. A windshield cleaning system for delivering a washing liquid supplied by a washing liquid supply tube to a windshield of a vehicle so that the windshield may be cleaned by the washing liquid being wiped over the windshield, the windshield cleaning system comprising:
- a jet for spraying the washing liquid onto the windshield;
a rotatably mounted shaft with a drive end and a driven end, the shaft having an axial bore, the bore adapted to channel washing liquid passing from the washing liquid supply tube through the bore from the drive end to the driven end of the shaft;
a wiper arm for wiping the washing liquid over the windshield, the wiper arm connected to the driven end of the shaft;
an intermediate piece disposed at the driven end of the shaft for diverting the washing liquid received from the bore of the shaft to the jet, the jet being connected to the intermediate piece;
a heating element disposed on the wiper arm for warming the washing liquid at the jet;
a voltage source connected to the heating element for exciting the heating element;
at lest one electric conductor for heating the washing liquid, the at least one electric conductor disposed within the bore;
a pipe disposed within the bore, the at least one electric conductor carried by the pipe, the pipe extending beyond one of the ends of the shaft to define a first end portion of the pipe;
at least one contact web connected to the conductor and attached to the at least one end portion for detachable connection to a counter contact piece; and
a first counter contact piece detachably electrically connected to the voltage source and the at least one contact web.
1 Assignment
0 Petitions
Accused Products
Abstract
A windshield cleaning system with a wiper shaft for driving a wiper arm-and-blade assembly is described, which windshield cleaning system comprises an axial bore for forming a washing liquid channel, whereby at least one electric conductor for heating the washing liquid is assigned to the washing liquid channel. Thereby the electric conductor is anchored on a pipe, which is arranged in the bore of the wiper shaft, whereby this pipe extends the end of the wiper shaft by way of at least one end portion and can detachably be connected there with a counter contact piece. Due to the plug connection of the electric conductor an easy assembly is possible.
43 Citations
24 Claims
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1. A windshield cleaning system for delivering a washing liquid supplied by a washing liquid supply tube to a windshield of a vehicle so that the windshield may be cleaned by the washing liquid being wiped over the windshield, the windshield cleaning system comprising:
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a jet for spraying the washing liquid onto the windshield; a rotatably mounted shaft with a drive end and a driven end, the shaft having an axial bore, the bore adapted to channel washing liquid passing from the washing liquid supply tube through the bore from the drive end to the driven end of the shaft; a wiper arm for wiping the washing liquid over the windshield, the wiper arm connected to the driven end of the shaft; an intermediate piece disposed at the driven end of the shaft for diverting the washing liquid received from the bore of the shaft to the jet, the jet being connected to the intermediate piece; a heating element disposed on the wiper arm for warming the washing liquid at the jet; a voltage source connected to the heating element for exciting the heating element; at lest one electric conductor for heating the washing liquid, the at least one electric conductor disposed within the bore; a pipe disposed within the bore, the at least one electric conductor carried by the pipe, the pipe extending beyond one of the ends of the shaft to define a first end portion of the pipe; at least one contact web connected to the conductor and attached to the at least one end portion for detachable connection to a counter contact piece; and a first counter contact piece detachably electrically connected to the voltage source and the at least one contact web. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A windshield cleaning system for delivering a washing liquid, supplied by a washing liquid supply reservoir and warmed by an electric current provided by a voltage supply, to an intermediate piece and then to a jet for spraying the washing liquid onto a windshield of a vehicle so that the windshield may be cleaned by the action of a wiper arm assembly wiping the washing liquid over the windshield, the windshield cleaning system comprising:
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a shaft including a rotatably mounted drive end, a driven end, and an axial bore, the wiper arm assembly at the driven end of the shaft; a washing fluid supply pipe disposed within said bore, said pipe including a first end portion adjacent the drive end of said shaft, the first end portion adapted for communication with said washing fluid supply reservoir and said pipe including a second end portion adjacent the driven end of said shaft, the second end portion adapted for communication with said jet through said intermediate piece; at least one electrical conductor insulatively carried by said pipe; at least one contact web attached to one of said end portions and electrically connected to said conductor; and means electrically connected to said contact web for establishing a flow path for electrical current through said electrical conductor for any momentary position of rotation of said shaft while said shaft drives said wiper arm assembly. - View Dependent Claims (21, 22, 23, 24)
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Specification