Electric device for adjusting height and angle of a motor vehicle seat causes a first height adjustment device to engage near a first spar end of a seat frame and a second height adjustment device to engage near a second spar end

摘要

A first height adjustment device (HAD) engages near a first spar end (3) of a seat frame and a second HAD engages near a second spar end (4). Both HADs are driven by a drive shaft (18) driven by an electric motor (20) and linked to the HADs through first (21) and second (22) freewheeling couplings. During right-handed rotation of the drive shaft, the first coupling assigned to the first HAD produces a drive connection.