| 摘要 |
PURPOSE:To provide possibility of fabricating each of brackets, which are to be coupled together through a frame member. by means of die-casting using a v ersatile die in alignment with the axis of a sleeve for pivot shaft, while the strength is maintained by the use of straight frame member, CONSTITUTION:No.1 and No.2 assumed planes are set in such a way as including the axes B, C of No.1 and No.2 pivot shaft 3, 6, and the axis A of a frame member 7 is set as lying on No.3 assumed plane in parallel with the No.1 and No.2 assumed plane which are parallel with each other. |
