| 摘要 |
A tensioner mechanism that winds a webbing to restrain a passenger seated in a seat when a vehicle crash is detected is provided near the seat. A headrest body 15 is provided to protect the passenger at the vehicle rear crash. A drive mechanism 50 is coupled to the tensioner mechanism via a connection member 54, and configured to drive the headrest body 15 in accordance with a webbing-winding operation of the tensioner mechanism. Accordingly, the seat structure can be simple. |
