Patent ID: 7528333

Claim:
A thin, film-form seating detection switch capable of detecting whether or not a passenger is seated in a seat, comprising: a film-form substrate made of insulating material; a first conductor fixed to one of the surfaces of the substrate, including a first terminal at one end and a first electrode at the other end; a second conductor fixed to said one of the surfaces of the substrate, including a second terminal at one end and a second electrode at the other end, said second conductor being insulated from the first conductor; a film form member made of insulating material, disposed on said one of the surfaces of the substrate, and slightly removed from the substrate via a spacer and substantially parallel to the substrate; and a third conductor fixed to the surface of the member facing the substrate, including a fourth electrode at one end and a third electrode at the other end; wherein when a passenger sits down in a seat on which the seating detection switch is provided, at least one of a part of the substrate and a part of the member bends due to the weight of the passenger, and the first and fourth electrodes as well as the second and third electrodes enter a condition of mutual conductivity.