Patent ID: 7506924
Filing Date: 2009-03-24
Classification: B60N

Abstract:
1. A motor vehicle seat having an air supply device for generating a ventilating air flow through a ventilation layer of a cushion of a backrest of the seat to ventilate and heat the seat, the air supply device having an air outflow opening arranged in a headrest at an upper region of the seat backrest and from which a seat occupant's head, shoulder and neck region can be acted upon by the ventilating air flow; a fan arranged in the backrest and configured to be selectively supplied with air from the ventilation layer so as to generate the air flow for the head, shoulder and neck region of the seat occupant; a first regulating element operatively arranged between the fan and the air outflow opening in the upper region of the seat backrest so as to allow at least part of the generated air flow to flow to an air outlet and thereby regulating the amount of air flow to the headrest; and a second regulating element operatively arranged in an air suction opening between the ventilation layer and an input side of the fan in the region of the first regulating element in the seat backrest so as to supply the fan with air from outside the ventilation layer and thereby regulating the relative amount of air from the ventilation layer and from the outside.