Abstract: A safe driver seat unit in a motor vehicle includes a seat supported on two rails by four ball bearings mounted in the seat legs, and a locking arrangement having a locking effect and requiring less electric current than previously to actuate. In a normal position of the seat, the springs provided in front of the seat are compressed and an impacting electromagnetic controller locks the seat. When a collision takes place, a deformation of sensors will turn on the power to unlock the seat, and then the biased springs force the seat to move backwardly away from the dangerous area, while the braking electromagnetic controller automatically brakes the motor vehicle.

Abstract: A safety seat installed in a motor vehicle includes a safety belt, a movable seat and sensors. The movable seat is supported on pipe rails by ball rollers and is locked by a locking device controlled by electromagnetic force. The sensor has two metal elements which are separated from each other. When the motor vehicle collides with an obstruction the two metal elements contact each other and close an electric circuit whereby the locking device will release the seat under the action of an electromagnetic force. The seat is forced to move backward by the action of compressed springs, to prevent the driver and/or passenger on the front seat from being injured by damaging objects penetrating into the cab and/or the front seat.