| 摘要 |
A vehicle seat assembly having a seat body and a headrest subassembly connected to the seat body. The headrest subassembly has a front surface, a backstop member and a first cushion adjacent the backstop member. The first cushion is positioned between the front surface and the backstop member. The first cushion is configured to collapse against the backstop member in response to a force applied by a human head to the headrest subassembly during a vehicle collision. The first cushion remains collapsed while the head is disposed adjacent the headrest subassembly subsequent to the collision.
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