Title:
シリンダー錠の解錠方法、解錠用ツール、及びボーリング冶具及びスチールボール除去ツール
Document Type and Number:
Japanese Patent JP7158724
Kind Code:
B2
Abstract:
To provide a method for unlocking a cylinder lock, a substitute tool for a key, and a boring tool which allow even a person having little experience in unlocking work to surely unlock a cylinder lock, to minimize a part to be damaged.SOLUTION: Included are: a steel ball removing step of inserting a hole saw into a drill hole 9a to cut a part of a key insertion portion 3b in contact with the periphery of a steel ball; a stepped chip checking step of checking whether or not a checking wire 19 enters a gap between a notch of a tumbler 4 and a locking bar 5 from a removed portion of a steel ball with a chip holding bar of a main tool inserted in a key hole 3a, and checking whether or not the stepped chip 12 matches the shape of a key groove; and a punching step of punching a through hole for passing wire 19 through wall 6 by punch.SELECTED DRAWING: Figure 19
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Inventors:
Arai Yasuhiko
Application Number:
JP2019023443A
Publication Date:
October 24, 2022
Filing Date:
February 13, 2019
Export Citation:
Assignee:
Fuki Co., Ltd.
International Classes:
E05B27/00; E05B19/00; E05B19/06; E05B19/20; E05B29/00
Domestic Patent References:
| JP2004036154A | ||||
| JP3068960U | ||||
| JP2008050804A |
Attorney, Agent or Firm:
Mitsuharu Kiuchi
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