RECLINING DEVICE AND VEHICLE SEAT

In a reclining device, a lock mechanism locks tilting of a seat back. A knob is connected to a catch plate, and in a case in which the knob is operated, the catch plate is rotated, and a lock mechanism unlocks tilting of the seat back. At a time of a side collision of a vehicle, an impact load is input to a cap of the knob, the knob is disconnected from the catch plate, and a bracket restricts rotation of the catch plate. Therefore, even in a case in which the knob is operated by an impact load, the rotation of the catch plate can be restricted, and the unlocking of the tilting of the seat back can be restricted.