Abstract: Disclosed is a safety belt system for vehicle seats, including: a vehicle seat part which includes a seat portion, and a backrest; a safety belt which includes a shoulder belt, and a waist belt, and restricts a body of an occupant; a headrest which is connected with the backrest by a rotation shaft, and protects a face or neck region of the occupant from the shoulder belt using a cushion having both convex sides; a sensor which senses impact of the vehicle; and a rotation locking unit which prevents the headrest from being rotated when the sensor senses an accident signal that is equal to or greater than a predetermined output.

Abstract: Disclosed is a safety belt system for vehicle seats, including: a vehicle seat part which includes a seat portion, and a backrest; a safety belt which includes a shoulder belt, and a waist belt, and restricts a body of an occupant; a headrest which is connected with the backrest by a rotation shaft, and protects a face or neck region of the occupant from the shoulder belt using a cushion having both convex sides; a sensor which senses impact of the vehicle; and a rotation locking unit which prevents the headrest from being rotated when the sensor senses an accident signal that is equal to or greater than a predetermined output.

Abstract: Disclosed is a motor vehicle safety belt including: a belt which includes a shoulder belt, and a waist belt, and restricts a body of an occupant; a retractor which is installed at a door side of a vehicle body, and winds up at one end of the belt; a tongue plate which is fastened to the belt; a buckle which is installed at one side of a seat, in which the occupant is seated, fixes the belt, and binds with the tongue plate; and an anchor which fixes the other end of the belt to the vehicle body, in which a belt strap is added at a side opposite to a vertex where the shoulder belt and the waist belt are coupled, so as to form a ? shape between the shoulder belt and the waist belt.