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Title:
KEY PROTECT STRUCTURE OF ELECTRONIC EQUIPMENT
Document Type and Number:
Japanese Patent JP3948168
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a key protect structure of an electronic apparatus to prevent the intentional change of the set value of a switch by a user, etc.
SOLUTION: When a first switch 21 is set, a tool side shutter operation part of a lock key inserted a hole part 61 for operating a first shutter, the tool side shutter operation part is engaged with an engagement recessed part 45 of the first shutter 40, and the lock key is turned to turn the first shutter 40, its shield part 44 is moved immediately above the first switch 21, a hole part 58 for operating the first switch is closed to lock (key protect) the first switch 21 to prevent operation from the outside.


Inventors:
Ogawa, Korehiko
Takakuwa, Hajime
Yamamoto, Hiroyuki
Tomioka, Yoshitaka
Application Number:
JP1999000235539
Publication Date:
July 25, 2007
Filing Date:
August 23, 1999
Export Citation:
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Assignee:
OMRON CORP
International Classes:
E05B17/18; E05B17/22; E05B65/00; H01H9/28; H01H13/70; H01H11/00; H01H27/00; (IPC1-7): E05B65/00; E05B17/18
Domestic Patent References:
JP3232688A
JP6039016Y2
JP8284494A
Foreign References:
FR2631160A1
Attorney, Agent or Firm:
青木 輝夫