| 摘要 |
A burglar alarm lock for steering wheel of cars and particularly to a burglar alarm lock aiming at improving U.S. patent application Ser. Nos. 08/616,338 and 824,781 previously submitted by Applicant to enhance theft-deterrent effect and utilization effectiveness. It has a receiving antenna installed on a lock block adjacent to the window of the driver seat at an elevation slightly higher than the lock body. The antenna is connected to an alarm circuit located in the lock set. Through a remote controller and the antenna, the alarm lock may be activated and the alarm may be released at a long distance. The antenna can attenuate the shield effect and improve signal transmission to enhance control effect at a long distance. |
