| 摘要 |
PURPOSE:To reduce the man-hour in bending and the space for machines by arranging both parts of a pair of bending rollers revolvably for the shaft center of the bending roller of the other part. CONSTITUTION:The 1st bending roller 12 is provided at the upper end part of the 1st rotary shaft 11 and the 2nd bending roller 23 is arranged at the upper end of the 2nd rotary shaft 22 as well. The rollers 12, 23 are respectively driven via the 1st driving shaft 1, 2nd driving shaft 14, and the 1st bending roller 12 and 1st rotary shaft 11 are made rotatable centering around the shaft center 1 of the 2nd bending roller 23. Similarly, the 2nd bending roller 23 is made rotatable freely around the shaft center 11 of the 1st bending roller 12. The reduction in the man-hour for bending work and in the machine space is enabled because a rod material 37 can be bent in order to the right and left by one unit of push bending machine.
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