초록 ▼

A seat back for an automotive seat with an integrated protective device and a process for preventing injuries to a seat occupant caused by an accident in the event of a rear-end impact. The seat back features a bottom seat-back part and a top seat-back part that, by means of a torque, pivots around

A seat back for an automotive seat with an integrated protective device and a process for preventing injuries to a seat occupant caused by an accident in the event of a rear-end impact. The seat back features a bottom seat-back part and a top seat-back part that, by means of a torque, pivots around an axis in the seat back that is perpendicular to the longitudinal axis of the vehicle, out of a position of standard use and into a safety position. To improve the efficiency of such a seat back, it is proposed that the protective device features a device that generates the torque regardless whether the automotive seat is occupied, and means for detecting a rear-end impact, which are actively linked with the torque-generating device in such a way that the device is activated in the event of a rear-end impact and the swinging movement is started.

대표청구항 ▼

1. A seat back for an automotive seat comprising:a bottom seat-back part, connectable to a seat part; a top seat-back part connected to said bottom seat-back part for pivotal movement in an angular range relative to said bottom seat-back part out of a position of standard use, around an axis in said

1. A seat back for an automotive seat comprising:a bottom seat-back part, connectable to a seat part; a top seat-back part connected to said bottom seat-back part for pivotal movement in an angular range relative to said bottom seat-back part out of a position of standard use, around an axis in said seat back that runs perpendicular to a longitudinal axis of the vehicle, and along a pivot direction pointing in the direction of vehicle travel; a torque generating means for generating a torque operating on said top seat-back part in said pivot direction, regardless whether the automotive seat is occupied; and detecting means for detecting a rear-end impact, which is actively linked with said torque-generating means in such a way, that said torque-generating means is activated in the event of a rear-end impact and the swinging movement is started.