KEY STORING CASE, AND ABSENCE SETTING DEVICE USING THE CASE

KEY STORING CASE, AND ABSENCE SETTING DEVICE USING THE CASE

PROBLEM TO BE SOLVED: To provide a key storing case provided with a key use detecting means which can be realized at low cost without providing any modification to a lock but keeping it as it is, and an absence setting device utilizing the case. SOLUTION: This device comprises an inner case 4 for co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SAKURAI MASAAKI, SUNABA MAKOTO, AIDA RYUICHI, NISHIMURA MITSUO
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES THEREFOR
ALARM SYSTEMS
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
ORDER TELEGRAPHS
PHYSICS
SAFES
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a key storing case provided with a key use detecting means which can be realized at low cost without providing any modification to a lock but keeping it as it is, and an absence setting device utilizing the case. SOLUTION: This device comprises an inner case 4 for covering a key 3, and an outer case 1 in which the inner case 4 is movably installed, and it is provided with a key use detecting means to detect use of the key 3.