Patent ID: 7735402
Filing Date: 2010-06-15
Classification: B26D,B26F,Y10T

Abstract:
1. A punching apparatus disposed along a transport path for image-formed paper, comprising: a collecting container for collecting punch waste generated by punching the image-formed paper, and a charge removal member disposed in the collecting container and removing static electricity built up on the punch waste, wherein the charge removal member is disposed in a position corresponding to a hole-punching punch disposed inside the punching apparatus, and a distal end portion of the charge removal member is constituted by charge removal needles formed in the shape of comb teeth, and the spacing density of the charge removal needles in the portion corresponding to the hole-punching punch is higher than the spacing density of the charge removal needles in the portion corresponding to the periphery of the hole-punching punch, and wherein the charge removal needles are disposed at a first spacing permitting reliable capture of the charged punch waste in the portion corresponding to the hole-punching punch, and the charge removal needles are disposed at a second spacing in the portion corresponding to the periphery of the hole-punching punch so that punch waste that has been captured and destaticized by the charge removal needles disposed at the first spacing is allowed to fall under its own weight between the individual needles disposed at the second spacing.