Cleaning device
AssigneeMannesmann VDO AG
InventorRolf-Dieter Schlein
Life of this patent
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Abstract
In the case of a cleaning device (1) a washer jet (9) is arranged on a piston rod (6) which can be moved by means of an electromotive drive unit (3). A heating element (10), which is connected to a hollow cylinder (2) which is in a fixed location, is situated, in its illustrated position of rest, in the direct vicinity of the washer jet (9) and in this manner makes it possible for the washer jet (9) to be heated thereby preventing it from freezing up when ambient temperatures are critical. No electrical contacts are required on the moveable part of the cleaning device (1) because of the connection of the heating element (10) in a fixed location.
Claims12
A cleaning device for a motor vehicle lens glass, in particular a motor vehicle lamp lens, having a washer jet which can be heated by means of a heating element, is provided for spraying the lens glass with washer fluid and is arranged such that it can be moved from a position of rest into an operating position, wherein the heating element (10) is positioned in a fixed location in the direct vicinity to the washer jet (9) situated in the position of rest.
The cleaning device as claimed in at least one of the preceding claims, wherein the heating element (10) has an electrical resistance element.
Dependencies are inferred from the claim text.