SEATING SENSOR

PROBLEM TO BE SOLVED: To provide a seating sensor capable of retaining a stable specific resistance value by alleviating a bending stress toward a printed resistance layer. SOLUTION: The seating sensor 1 includes: an insulation spacer 21 having a plurality of through-holes 20 for switching cells; flexible lower and upper insulating films 22, 23 having a sensor region 1a, an extraction terminal region 1b to be adhered on both surfaces of the insulation spacer; a plural pairs of lower and upper contact electrodes arranged on each of the insulation surfaces in each of the through-holes for the cells; a first and a second terminal electrodes arranged on the insulating film in the extraction terminal region; circuit wiring layers 12-15 formed on the surfaces of the insulating films from each terminal electrode to the sensor region so as to compose a sensor circuit wring net against a group of the plural pairs of the contact electrodes; a printed-resistance layer 30 formed by printing on a partial surface of the insulating film connected with the circuit wiring layer; and a rigidity reinforcing member 31 arranged at a position opposed to the printed-resistance layer. COPYRIGHT: (C)2010,JPO&INPIT