| 摘要 |
An inflatable cushion for supporting the back of a user's head is U-shaped seen in plane view and this U-shape consists of a bottom part and two mutually converging leg parts. The bottom part has a surface part which is intended to abut on the nape of the user's neck and this surface part of the cushion is double convex formed when the cushion is in its inflated condition for use. |
