| 摘要 |
PROBLEM TO BE SOLVED: To provide a lumbar support for a backrest of a chair to increase comfort for a user. SOLUTION: A front lumbar pad 200 and a back lumbar pad 204 are arrnaged at positions desired for a backrest by moving the same while keeping mutaual cooperation relation of the same by sandwiching the material 28 of the backrest 14 by magnets 208a-208f. COPYRIGHT: (C)2010,JPO&INPIT |
