Present creation is about burglar alarm device, which is installed on automobile or motorcycle to prevent burglary and illegal unlocking of locking device. More particularly, Key box is installed inside of automobile's engine and it automatically armed and touching sensor is activating when engine start key is moved from ON position to LOCK position, and when start key is moved form ON position to LOCK position, the start key also moved reverse electric current switch from OFF position to ON position which then arming burglar alarm by supplying power to burglar alarm device.

Background Art Traditionally, almost all of the burglar alarms are using remote-controller to operate burglar alarm, and alarm traditional burglar alarms has structure that goes off when it sensor bumping or shaking which comprise of; remote signal transmission part; remote signal receiving part to receive remote signal transmit from remote signal transmission part ; relay operate siren.

Furthermore, traditional burglar alarm is operating by remote-controller after

stop the engine, receiving part is waiting for transmit signal from the remote controller, and receiving part is waiting for receiving signal from the remote controller, so it spend more electronic power than it is necessary. It also does not have electronic power save mode to save battery, so it spend at least 5-5. 94mA while it is on armed statue, and it spend 6mA while alarm goes off, if the battery of motorcycle is low or use low capacity battery and parked motorcycle for long time then it will be impossible to start engine of the motorcycle, or burglar alarm will not work properly due to the wear out of the battery. So, battery must be replaced or recharged often which is not cost effect.

Disclosure of the Invention Present invention is invented to overcome above problem arose in the traditional burglar alarm and inventor of the present invention has suggested anti-theft engine start device in Korean Utility Model No. 20-2000-0012949 which is directly connected to operation terminal located in key box of the automobile.

So, different from traditional burglar alarm, it can save electronic power and does not need excessive movement for arming, because alarm is automatically armed by reserve electric current switch connected to Integrated Circuit (IC) that operate at interval of certain period of time after key is moved on LOCK position which then connected to power supplier for battery. So, it became much easier to operate burglar alarm, and can reduce or save consumption of electric current because alarm is automatically armed after certain period of time.

Furthermore, it has no problem to use low capacity battery, because Integrated 5 Circuit (IC) will automatically turned to electric current save mode if bumping sensor installed in the body can not detect touching or bumping for a certain period of time. So, it only spends 0.82mA while it is on electric current saver mode, and it spends 4.2 mA while alarm goes off (only alarming for certain period of time). It spends 1/10 of electric current compare to traditional burglar 10 alarm, and it is an object of the present invention to provide burglar alarm which only spend minimum consumption of battery after long time usage.

It is an another object to provide burglar alarm which is easy to operate and strengthened durability of burglar alarm device to make it hard to break down, it also minimize consumption of electric current power to extend time of battery 15 usage, and it reduce cost of product compare to burglar alarm using remote controller. Furthermore, it does not have to worry about break down or lost remote controller by mistake.

In addition, present invention does not need to spend electric current power used

to receive remote signal transmitting from transmission part to receiving part, and burglar alarm in accordance with the present invention spends lower electric current power than normal burglar Alarm, because Integrated Circuit (IC) will automatically turned to electric current save mode if bumping sensor installed in the body can not detect touching or bumping for a certain period of time. So, present invention can prevent problem like incapability of activating alarm, or change or recharge battery after long time use.

Present invention only describe only part of the burglar alarm, but present invention can be modified or change and fall into present invention if adopted or applied technology of Integrated Circuit (IC) that automatically turned to electric current save mode if bumping sensor can not detect touching or bumping for a certain period of time.

Brief Description of the Drawings The principal embodiments of the present invention are described with reference to accompanying drawings in detail.

Fig. 1 is a briefly illustrated structure of the present invention; Fig. 2 is circuit diagram illustrated operating principle of the present invention.

Best Mode for Carrying Out the Invention Reference now should be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components.

Fig. 1 is a briefly illustrated structure of the present invention and Fig. 2 is circuit diagram illustrated operating principle of the present invention, reserve electronic current switch (7) on handle lock located inside of key box (8) so touching or bumping sensor is activating when engine start key is moved from ON position to LOCK position, and when start key is moved form ON position to LOCK position, the start key also moved reverse electric current switch (7) from OFF position to ON position which then supply electronic current power though electronic wire from a battery (4) to burglar alarm device (l).

Subsequently, alarm goes off periodically from the transmission part (9) when touching or bumping sensor detect bumping or pressure, and alarm only can be stopped by insert start key into key box (8) and move handle lock form LOCK position to other position.

Furthermore, to make easy to operate the burglar alarm device (l), and reduce or

save electric current power, the interval time is set on Integrated Circuit (IC) (6) to allow burglar alarm device (1) be armed at certain interval time, and Integrated Circuit (IC) is automatically turned to electric current save mode if bumping sensor can not detect touching or bumping for a certain period of time, so when Integrated Circuit (IC) is turned to electric current save mode, it only spend 0. 5mA-0. 82mA, so it can save 3mA-3. 38mA compare to spend 3.5mA-4.2mA at normal time, so, it only consume 1/5-1. 7 of electric current power compare to usage of electric power when alarm goes off, it can save more electric current power when use improved parts.

It also cannot start engine by kick-starter when internal electronic wire of the key box is illegally cut, because there is another electric wire which is earthed with the main body (2) of the burglar alarm (1) directly from engine ignition part.

Industrial Applicability To achieve above objects of the present invention, present invention installed reserve electronic current switch (7) on handle lock located inside of key box (8) so touching sensor is activating when engine start key is moved from ON position to LOCK position, and when start key is moved form ON position to

LOCK position, the start key also moved reverse electric current switch (7) from OFF position to ON position which then supply electronic current power though electronic wire from a battery (4) to burglar alarm device. (1) Furthermore, interval time is set on Integrated Circuit (IC) to control arming of the burglar alarm which is located in the main body (2) and activating by reverse electric current switch (7).

It is distinguish feature of the present invention that electronic current power goes into burglar alarm device (l) by moving engine start key in Key box (7) from ON position to LOCK position, and Integrated Circuit (IC) is automatically turned to electric current save mode if bumping sensor can not detect touching or bumping for a certain period of time, burglar alarm device (1) in accordance with the present invention is not specify installation position of main body (2), so it is suggested to installed the position where it can not be seen.

It is another distinguish feature of the present invention that it cannot start engine by kick-starter when internal electronic wire of the key box is illegally cut, because there is another electric wire which is earthed with the main body (2) of the burglar alarm (1) directly from engine ignition part.