Electrically operated backrest adjuster and vehicle seat with such a backrest adjuster

A vehicle seat comprising:

• a seat part;
• a backrest adjustable relative to the seat part;
• and
• an electrically operated backrest comprising:
• a fitting for adjusting the inclination of the backrest;
• two fitting sides of which each comprises a fitting upper part fixed on the backrest, and
• a fitted lower part fixed on the seat part, and of which at least one of the two fitting sides comprises the fitting for adjusting the inclination of the backrest, wherein the fitting is arranged between the fitting upper part and the fitting lower part;
• a transmission rod, the fitting sides being coupled to each other by means of the transmission rod;
• and
• an electric drive unit on one of the fitting sides as a drive-side fitting side, said electric drive unit being arranged on the outside of the associated fitting lower part and being coupled to the transmission rod for driving same.

A method for installing an electrically operated backrest adjuster comprising:

• a fitting for adjusting the inclination of the backrest;
• two fitting sides of which each comprises a fitting upper part fixed on the backrest, and a fitted lower part fixed on the seat part, and of which at least one of the two fitting sides comprises the fitting for adjusting the inclination of the backrest, wherein the fitting is arranged between the fitting upper part and the fitting lower part;
• a transmission rod, the fitting sides being coupled to each other by means of the transmission rod;
• and
• an electric drive unit on one of the fitting sides as a drive-side fitting side, said electric drive unit being arranged on the outside of the associated fitting lower part and being coupled to the transmission rod for driving same, the method comprising the the steps of:
• fitting together the two fitting upper parts and the transmission rod connecting same,
• placing and fastening the at least one fitting on an end of the transmission rod that projects out of the fitting upper part concerned,
• placing and rotatably arranging the fitting lower parts onto those ends of the transmission rod which project out of the fittings,
• placing and fastening an actuating unit on a fitting lower part on the outside of one of the fitting sides,
• mounting a driveshaft with a pinion on said fitting lower part,
• mounting and fastening an electric drive unit on the outside of the fitting lower part concerned, in particular mounting and fastening the associated components, such as a motor, an actuator, a switching element.