Patent ID: 6783178
Filing Date: 2004-08-31
Classification: B64D

Abstract:
An electric seat comprising:a seatback and a leg rest supported by a seat cushion for pivotal movement; a footrest supported for forward and backward movement with respect to the leg rest; electric motors provided for the seatback, the leg rest, and the footrest respectively for driving the same; operating direction detecting means for detecting an operating direction of at least one of the seatback, the leg rest, and the footrest; consumed current detecting means for continuously detecting a current consumed by the respective electric motors through an operation of at least one of the seatback, the leg rest, and the footrest; and determining means for continuously comparing the operating direction detected by the operating direction detecting means with a predetermined operating direction, comparing the current of the respective electric motors detected by the consumed current detecting means with predetermined reference values of an upward movement and of a downward movement of at least one of the seatback, the leg rest and the footrest, and executing determination of an operating condition based on compared results by determining whether or not an unnecessary reaction force caused by a baggage or a person unpredictably placed is acting on at least one of the seatback, the leg rest, and the footrest.