| 摘要 |
In a locking system constituted by a housing, a slider provided in the housing and including magnetic lock pins, and a pair of plates provided in the housing so that a magnetic card key can be inserted between the plates, a lock setting changing unit is cunfigured such that a disc rotatable to change magnetic lock setting is inserted into at least one circular recess portion of a slider, the disc is provided with engagement means for preventing a setting tool from being relieved in the middle of changing the magnetic lock setting, the setting tool is inserted into a center hole of the rotatable disc, and after the disc is rotated by the setting tool so that the magnetic lock setting can be changed into a new magnetic lock setting position, the setting tool is allowed to be relieved from the disc.
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