| 摘要 |
The unit (6) has a partial area (61) with a specific material thickness, and another partial area (62, 63) having a different material thickness. The two partial areas are made of same material such as foamed plastic. The partial areas (62, 63) are arranged in opposite end areas of the unit, where the material thickness of the partial areas (62, 63) is higher than the material thickness of the area (61). The partial areas (62, 63) are formed in the partial area (61). |
