Rotation seat for vehicle

摘要

A rotation seat for a vehicle has a seat, a rotating plate (20) and a base plate (30). The seat is fixed on the rotating plate which has a nail member (41) and a biasing unit (43). The biasing member forces the nail member. The rotating plate is rotatably connected to the base plate through a first shaft (50). The base plate has a guide slot (31) so as to regulate extent of the rotation of the rotating plate by guiding the nail member. The guide slot has a first slot (31A) and a second slot (31B). The biasing unit exerts a force on the second slot through the nail member so as to make the rotating plate rotate from an operator's exiting position to a forward driving position.