INSERTION DETECTOR

PURPOSE:To detect the insertion of an object, by covering a substrate, which is provided to the butt end of an automatic opening and closing apparatus, with a deformable skin and providing an electrode to the skin surface. CONSTITUTION:When an object such as a finger inserted between a windowpane 1 and a door sash 2 during the closing operation of a windowpane 1, the skin sheet 54 of the detector 5 provided to the door rim 4 contacted with the door sash 2 is pressed and deformed upwardly by the object and, by this deformation, electrodes 51, 53 are brought to a continuity state. This continuity signal is inputted to the control circuit of a windowpane driving motor to stop or reverse said motor. By this mechanism, the damage of the object inserted into the windowpane is prevented.