Seat rotating device

A seat rotating device that moves a seat body in a front-rear direction of a vehicle and rotates the seat body between a seating position where the seat body faces front of the vehicle and a getting-on and -off position where the seat body faces an opening of a door of the vehicle, the seat rotating device comprising:

• a seat slider that allows movement of the seat body in the front-rear direction, the seat slider including a lower rail fixed on a floor side and an upper rail movable along the lower rail;
• a base plate fixed to the upper rail;
• a rotating plate fixed to a lower surface of the seat body so as not to rotate relatively to the seat body, the rotating plate including a belt anchor bracket to which an anchor of a seat belt is fixed;
• a coupling unit that couples the base plate and the rotating plate to each other such that the rotating plate is rotatable with respect to the base plate between the seating position and the getting-on and -off position;
• a restriction portion fixed to the upper rail, the restriction portion restricting upward movement of the belt anchor bracket while the rotating plate is located at the seating position;
• a fixing member fixed to the belt anchor bracket;
• and
• a load bearing portion fixed to the upper rail, the load bearing portion bearing upward load applied to the fixing member while the rotating plate is located at the seating position, wherein
• the restriction portion includes
• an opposed portion opposed, in the front-rear direction, to a rear end of the belt anchor bracket while the rotating plate is located at the seating position, and
• a tab contiguous to the opposed portion, the tab being located above the rear end of the belt anchor bracket while the rotating plate is located at the seating position.