To provide a punching device capable of providing a plurality of penetration holes with substantially uniform punching distances from end edges to centers along the circumferential direction on an endless belt, and a method for manufacturing the endless belt.
The punching device 1 for punching a plurality of penetration holes 31 on the endless belt 33 includes at least two belt set parts 4 arranged in parallel so as to be separated from each other, a support part 5 arranged between the belt set parts 4, having at least one inserting/ejecting hole 16 opening thereon and supporting an inner peripheral surface of the endless belt 33, a guide part 6 which is higher than at least one side of the support part 5 with respect to the parallel arrangement direction of the belt set parts 4 sandwiching the support part 5, and at least one punching body 7 arranged to face the inserting/ejecting hole 16 and moving back and forth with respect to the support part 5. In the method for manufacturing the perforated endless belt, the endless belt is intermittently transferred to the circumferential direction, and at least one end edge of the endless belt is positioned to punch the penetration holes when the transfer is stopped.
KISHI MIKIO
NISHIMURA TADAYOSHI
AZAYAMA FUMITAKA
THREE A KOGYO KK
GORIN PACKING KK
Naoki Fukumura
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