| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bending angle detecting device for a plate bending device that can prevent the damage of detecting parts when external force larger than bending angle detection is applied to the detecting parts. <P>SOLUTION: The bending angle detecting device 1 for the plate bending device is used for the plate bending device including an upper table, an upper die, a lower table, and a lower die 9, and comes into contact with a plate 11 arranged near the lower die 9 and bent, to detect a bending angle. The bending angle detecting device 1 includes a body part 15 arranged near the lower die 9; a groove part 19 provided in the body part 15 to insert a bending part 17 of the plate 11; and the detecting parts 21, 23 arranged in the groove part 19 and contacting the bending part 17 of the plate 11 to detect the bending angle of the bending part 17. The body part 15 is provided with a retreat means 25 for making the detecting parts 21, 23 movable to the outside of the groove part 19 when force larger than bending angle detection of the bending part 17 of the plate 11 is applied to the detecting parts 21, 23 in a direction to go out of the groove part 19. <P>COPYRIGHT: (C)2013,JPO&INPIT |
