发明申请
US20130055859A1 RATCHET-ACTION OPEN-END WRENCH 有权
手动开关扳手

  • 专利标题: RATCHET-ACTION OPEN-END WRENCH
  • 专利标题(中): 手动开关扳手
  • 申请号: US13225138
    申请日: 2011-09-02
  • 公开(公告)号: US20130055859A1
    公开(公告)日: 2013-03-07
  • 发明人: Arthur WU
  • 申请人: Arthur WU
  • 主分类号: B25B13/28
  • IPC分类号: B25B13/28
RATCHET-ACTION OPEN-END WRENCH
摘要:
A ratchet-action open-end wrench of the present invention has a simplified structure. Arc-shaped abutting surface and corresponding groove is dismissed from the present wrench. Thus, components of the wrench can be manufactured and fabricated easily, and specified producing process can be chosen for obtaining strengthened structure. In addition, cost of the wrench is abated, precision of the wrench is arisen, and lift-time of the wrench is prolonged.
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