专利名称：AN ALARM DEVICE FOR AUTOMOBILES AND
SIMILAR VEHICLES
发明人：JOHANSEN, Kim Leidersdorff申请号：EP85904431.0申请日：19850823公开号：EP0192717A1公开日：19860903
摘要： The alarm comprises a timer which sends pulse at varying intervals can not bepredicted activation signals to turn on a warning lamp (13) and activate an acoustic alarmgenerator (19), if the driver does not operated a contact selectively operable reset withina predetermined time interval after the ignition of the lamp. The timer pulse is
constituted by a counter (1) for which the frequency of counting pulses sent is switchedfrom a comparatively low value (f1) to a frequency value substantially higher (f2) bysending the activation signal to turn on the warning lamp (13). By operating the resetcontact (26), the meter (1) is stopped in counting position occupied for a secondpredetermined time interval. At the end of this time interval, the signal connection fromthe meter to the test light is restored and the meter (1) continues to count from thecounting position occupied with the comparatively low counting pulse frequency (f1). Inorder to prevent the alarm from being inactivated by the continuous operation of thereset button (26), a synchronization circuit (28) is interposed between this contact and theacoustic alarm generator (19), this circuit synchronization sending activation signals to thealarm generator if the operation of the contact reset (26) has not ceased within a thirdpredetermined time interval.
申请人：JOHANSEN, Kim Leidersdorff
地址：12 Oldenvej DK-3490 Kvistgaard DK
国籍：DK
代理机构：Carpmael, John William Maurice, et al
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