Motor vehicle seat rotation mechanism

A motor vehicle seat rotation mechanism comprising:

• a connecting plate connectable to a seat;
• a moving plate located below the connecting plate and fixedly connected to the connecting plate;
• a fixed plate located below the moving plate, the fixed plate being connected to an upper slide rail in a slide rail assembly of the seat;
• a press plate, located above the moving plate and fixedly connected to the fixed plate;
• an upper ball assembly located between the press plate and the moving plate;
• a lower ball assembly located between the moving plate and the fixed plate;
• a locking device, for locking the fixed plate to the moving plate when an adjustment of the motor vehicle rotation mechanism is complete, mounted on the connecting plate and located in a space between the connecting plate and an outer edge of the lower anti-detachment hook ring, whereby the space between the connecting plate and the outer edge of the lower anti-detachment hook ring is used.

A motor vehicle seat rotation mechanism, comprising:

• a connecting plate connectable to a seat;
• a moving plate, located below the connecting plate and fixedly connected to the connecting plate;
• a fixed plate located below the moving plate, the fixed plate being connected to an upper slide rail in a slide rail assembly of the seat;
• a press plate, located above the moving plate and fixedly connected to the fixed plate;
• an upper ball assembly located between the press plate and the moving plate;
• a lower ball assembly located between the moving plate and the fixed plate, wherein a radial separation between a perpendicular axis on which the center of the upper ball in the upper ball assembly is located and a perpendicular axis on which the center of the lower ball in the lower ball assembly is located, is equal to or less than zero.