Vehicle seat with system for facilitating relieving of fatigue of person sitting on the seat

A seat for a vehicle, comprising a seat back, a seat cushion, and a system for facilitating relieving of fatigue of a person driving said vehicle while grasping a handle of said vehicle and sitting on the vehicle seat for many hours;

• said system comprising:
• a first sensor installed within said seat back for sensing variations in angle of a pelvic region of the person sitting on said vehicle seat;
• first active means installed within said seat back for pressure-supporting the pelvic region of the person, said first active means comprising a first air-bag having a plurality of first air-passages which are arranged together so as to take the form of a checkerboard pattern;
• first actuating means connected to said first active means for actuating said first active means;
• a second sensor installed in said handle of said vehicle for sensing perspiration of the person;
• and
• sequential control means electrically connected to said first and second sensors and said first actuating means for controlling the operation of said first actuating means;
• said first sensor being constructed so as to send said sequential control means a first signal representing a value that corresponds to a variation in the angle of the pelvic region of the person;
• said second sensor being constructed such that it sends said sequential control means a second signal representing the perspiration of the person when said second sensor senses the perspiration of the person;
• said sequential control means being constructed such that, when the value represented by the first signal sent to said sequential control means from said first sensor is more than a predetermined value, said sequential control means sends said first actuating means a first command to actuate said first actuating means and, when said second sensor senses the perspiration of the person and sends said sequential control means the second signal representing the perspiration of the person, said sequential control means sends said first actuating means a second command to actuate said first actuating means;
• and
• said first actuating means being constructed so as to supply air or suction to said first air-bag according to the first and second commands from said sequential control means, thereby causing said first air-bag to be inflated or deflated, so that supporting pressure that is applied to the pelvic region of the person by said first active means can be controlled.