| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a backrest mounting device reducing the cost by reducing the number of components and an assembling man-hour and simplifying the structure of connecting members. <P>SOLUTION: The lower part of the back face of a back board 18 is provided with a recess part 20 opened backward and downward, the recess part 20 is fitted with a connecting member 27, a part of the recess part 20 at which the rear face of the back board 18 and the front face of the connecting member 27 are opposed, is provided with a pair of left/right fitting grooves 23 and 34 facing in the vertical direction and opened downward, and the both fitting grooves 23 and 34 are fitted with the left/right back rods 8 so as to attach the back board 18 to the back rods 8. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
