Invention Grant
US08770079B2 Sheet hole punching device 失效
板孔冲孔装置

  • Patent Title: Sheet hole punching device
  • Patent Title (中): 板孔冲孔装置
  • Application No.: US13483821
    Application Date: 2012-05-30
  • Publication No.: US08770079B2
    Publication Date: 2014-07-08
  • Inventor: Kenji BabaYuji HasebeYoshinori Hoshino
  • Applicant: Kenji BabaYuji HasebeYoshinori Hoshino
  • Applicant Address: JP Kawasaki-shi
  • Assignee: Seiko Ltd.
  • Current Assignee: Seiko Ltd.
  • Current Assignee Address: JP Kawasaki-shi
  • Agent Manabu Kanesaka
  • Priority: JP2006-100253 20060331; JP2006-212535 20060803; JP2007-005512 20070115; JP2007-019457 20070130; JP2007-060841 20070309
  • Main IPC: B26F1/04
  • IPC: B26F1/04
Sheet hole punching device
Abstract:
A sheet hole punching device has a device frame; a plurality of punching members arranged in first and second groups, and arranged linearly on the device frame; a driving rotation shaft; a driving motor reciprocally rotating the driving rotation shaft; a gear mechanism transmitting a rotation of the driving rotation shaft; cam mechanisms converting the rotational movement; and a motor control device. The gearing mechanism includes drive gears disposed on the drive rotational shaft, and receiving gears disposed on the punching members to engage with the drive gears. The cam mechanisms include cam followers and cylindrical cams. The cylindrical cam has a V-shaped groove cam to reciprocate each of the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in first sheets, and subsequently rotated in a reverse direction to punch holes in following sheets.
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