| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a chair having a back frame connected with a backrest, the chair having a structure for facilitating the mounting of the backrest and not applying a load on a specific part of the connected portion. <P>SOLUTION: The backrest has a back inner shell, and side connecting portions are formed at both right and left ends of the back inner shell. The side connecting portion is connected to a side receiving portion 14 formed at the upper end of a back post 14. A supporting shaft 30 is fitted to a shaft receiving portion 29 provided at the side receiving portion 14a, and the backrest is allowed to be turned. The shaft receiving portion 29 has a cut hole 29a opening obliquely upward, the supporting shaft 30 has an oval cross-section, and when the backrest is tilted backward, the supporting shaft 30 is fitted to the shaft receiving portion 29. <P>COPYRIGHT: (C)2013,JPO&INPIT |
