| 摘要 |
PURPOSE:To obtain a seat revolving apparatus having a simple structure and the superior strength by forming a revolution center hole on a seat frame and installing a rotary mechanism in the annular space on the peripheral edge. CONSTITUTION:A lower bracket 10 having a bottomed supporting hole 11 is fixed onto seat tracks 14 and 15 through attachment brackets 12 and 13. A revolution center hole 24 having the annular space 25 upwardly opened on the peripheral edge is formed on a seat frame 20. Said annular space 25 consists of an outside cylindrical part 26 and an inside cylidrical part 27, and said outside cylindrical part 26 is inserted into the supporting hole 11 on the lower bracket 10. A support lock bracket 30 consists of an annular wall 31 and an inside wall 32, and the inside cylindrical part 27 of the seat frame 20 is positioned in the annular space 33 between the both walls 31 and 32, and a bottom wall 34 is fixed in the supporting hole 11 on the lower bracket 10. A proper lock mechanism 40 is installed between the seat bracket 20 and the support lock bracket 30. |
