| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhibition method utilizing the security lock device for a case simple in structure and convenient of use the case provided with the security lock device, and the case as it is, as a case for exhibition. SOLUTION: By pushing a lock member 30 in a lock case 10, claw pieces 45 elastical brought into contact with the upper face of lock pieces 14 inside the lock case 10 are moved to the lower part of the lock pieces 14 to engage with them, and a stopper piece 41 is inserted into the engaging hole 17 of the lock case 10 to be locked. When it is made in an unlock condition, by inserting a first key piece of a key in a specific key hole of the lock member 30, a second key piece in the other key hole, the first key piece on the head moves a slide piece 50 to conform the other key hole to the position of a through hole of the slide piece 50, and the second key piece presses the part giving spring resiliency of the claw piece 45 to release the engaged condition. Next by pulling out the key, the lock member 30 is lifted, the second key piece is moved upward in the condition releasing engagement of the claw piece 45, the extreme end part of the key piece is separated from the part given spring resiliency by the claw pirece 45, and simultaneously, the claw piece 45 is constituted so as to elastical come into contact with the upper face of the lock piece again.
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