Apparatus for monitoring the closing of a window by an electric motor, particularly a window of a motor vehicle
AssigneeHella KG Hueck & Co.
InventorsRolf Herrmann, Gregor Aussendorf
Life of this patent
Estimating the term…
Abstract
An apparatus for monitoring the closing of a window by an electric motor, particularly a window pane of a motor vehicle, has a sender and a receiver for electro-magnetic transmissions and at least one light-deflecting mechanism which guides electro-magnetic emissions, or waves, from the sender to the receiver. The apparatus can be used in conjunction with devices for stopping or reversing motion of the window pane if during the closing thereof the transmission intensity received at the receiver changes, the light-deflecting mechanism being arranged along at least portions of an upper edge of a window opening.
Claims20
A monitoring apparatus for monitoring the closing of a window, particularly of a motor vehicle window, having a sender and a receiver for electro-magnetic transmissions, at least one deflecting means for deflecting light which aids in transmitting electro-magnetic emissions from said sender to said receiver, wherein said means for deflecting light is arranged along at least a non-linear portion of an upper edge area of a window opening, for deflecting light along a path in said window opening substantially corresponding in shape to a shape of said non-linear portion and being positioned close to said non-linear portion, whereby said apparatus can be used in a system for causing operation of said window to stop or be reversed if an object is placed at said non-linear portion to thereby cause a transmission intensity change t the receiver during a closing process.
Dependencies are inferred from the claim text.