Windscreen wiping device including load alleviation
AssigneeValeo Wischersysteme GmbH
InventorBruno Egner-Walter
Life of this patent
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Abstract
A windscreen wiping device which includes a wiper arm which can be activated and a wiper blade which includes a wiper rubber having a carrier element receiver and a carrier element. A wiper lip is arranged on the wiper rubber and lies against the window to be wiped. Load alleviation elements which alleviate the wiper lip when the windscreen wiping device is in the parking position lift the wiper lip off the window to be wiped. The load alleviation elements include at least two interspaced pins arranged on the carrier element and ramps which co-operate with the pins and which are provided on the window or in the region around the window. In the parking position, the pins drive against the ramps in order to alleviate the wiper lip.
Claims24
In a wiper device of the type for glass for a vehicle window, the wiper device having a driveable wiper arm, a wiper blade configured as a flat wiper blade disposed on the wiper arm, where the wiper blade includes a wiper rubber with a receiver for a support element and the support element located in the receiver configured in an unbiased state as a pressure-distributing flexible spline having a concave curvature in proportion to the glass to be wiped, with a wiper lip disposed on the wiper rubber abutting the glass to be wiped and with load-alleviating means which relieve the load on the wiper lip in a parked position of the wiper device and lift the wiper lip from the glass to be wiped, where the load-alleviating means include at least two ramps on one of the glass and in the area around the glass, the improvement comprising that the load-alleviating means further include at least two cams disposed on the flexible spline of the flat wiper blade at a distance from each other and which ride up on the ramps to relieve the load on the wiper lip.
A wiper device for a window of a vehicle, said device comprising:
- a drivable wiper arm;
- a wiper blade configured as a flat blade disposed on the wiper arm, said wiper blade including a wiper rubber with a receiver;
- a support element located in the receiver, said support element configured in an unbiased state as a pressure distributing flexible spline having a concave curvature in proportion to the window to be wiped;
- a wiper lip disposed on the wiper rubber abutting the window;
- and
- load-alleviating means for relieving the load on the wiper lip in a parked position of the wiper device and for lifting the wiper lip from the window, wherein the load-alleviating means includes at least two ramps on one of the glass and in the area around the glass and at least two cams disposed on the flexible spline of the flat wiper blade at a distance from each other, and wherein said cams ride on the ramps to relieve the load on the wiper lip.
Dependencies are inferred from the claim text.