Adjustable hinge device for a motor vehicle seat

An adjustable hinge device of a vehicle seat having a first joint part, a second joint part and a hinge axle, the hinge device further comprising:

• a) a plurality of gear parts, including:
• a left planet wheel arranged on the first joint part and rotatable about an axle of the left planet wheel;
• a right planet wheel arranged on the first joint part and rotatable about an axle of the right planet wheel;
• a left toothed quadrant provided on the second joint part and which is in meshing engagement with the left planet wheel, the meshing engagement taking place in a left area of the left planet wheel, the left area facing away from the right planet wheel;
• and
• a right toothed quadrant provided on the second joint part and which is in meshing engagement with the right planet wheel, the meshing engagement taking place in a right area of the right planet wheel, the right area facing away from the left planet wheel, the left and the right toothed quadrants are substantially centric relative to the hinge axle;
• b) elastic means which are allocated to at least one of the left planet wheel, right planet wheel, left toothed quadrant and right toothed quadrant and which elastically pretension the meshing engagement in the left area between the left toothed quadrant and the left planet wheel and the meshing engagement in the right area between the right toothed quadrant and the right planet wheel, and
• c) driving means in driving connection with at least one of the left planet wheel and right planet wheel, whereby a relative motion between the left planet wheel and the left toothed quadrant and a relative motion between the right planet wheel and the right toothed quadrant are affected during an activation of the drive means.