LOCKING CHECKING APPARATUS

PROBLEM TO BE SOLVED: To provide a detecting radio-wave transmitting unit 30 for a locking checking apparatus which detects unlocking of a window, the unit being long-life and having the same external shape as that of an ordinary rotary lock lug. SOLUTION: The detecting radio-wave transmitting unit...

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Bibliographic Details
Main Author YODA TAKEO
Format Patent
LanguageEnglish
Published 29.01.2003
Edition7
Subjects
ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
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Summary:PROBLEM TO BE SOLVED: To provide a detecting radio-wave transmitting unit 30 for a locking checking apparatus which detects unlocking of a window, the unit being long-life and having the same external shape as that of an ordinary rotary lock lug. SOLUTION: The detecting radio-wave transmitting unit 30 is set in a case 36 which is fixed to a window frame. The case 36 also houses therein a sensor formed of a reed switch 56 and a magnet 54, and a transmitter 48. When releasing of a window lock is detected by the sensor, the transmitter 48 transmits detecting radio waves from the rotary lock lug 32 as an antenna. The reed switch is arranged on a circuit board of the transmitter, and the circuit board has been subjected to potting.
Bibliography:Application Number: JP20010216019