| 摘要 |
PURPOSE:To enable the axial part of a bolt to be smoothly inserted into a bolt insertion hole in a tightened member, by providing a means which inserts the axial part of the bolt into the bolt insertion hole of the tightened member coaxially with said hole further with the axial part while profiling a bar. CONSTITUTION:A device holds a bolt 90 in its head part by a bolt holding member 86, both holding a nut 56 coaxially with the bolt 90 by a socket 50 and rotating it by a nut runner 30. While the device extends a bar 46 along the center line of the socket 50 to be inserted into a bolt hole of the nut 56. This bar 46 is moved in its axial line direction till the bar 46 extends through a bolt insertion hole of a bracket 98 and a boss 100. Further an actuator 76 moves the bolt holding member 86 so that the bolt insertion hole of the bracket 98 and the boss 100 may insert an axial part of the bolt 90 while profiling the bar 46. |
