| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a chair, obtaining strong supporting force by improving the supporting rigidity of both of a back plate and a backrest frame, and attaining a good sitting comfortableness by effectively resiliently deforming the back plate backward. <P>SOLUTION: A plurality of upper and lower parts of both right and left sides of a frame 4 in the back plate 3 are supported not to move forward and backward by right and left vertical frames in the backrest frame 2. <P>COPYRIGHT: (C)2012,JPO&INPIT |
