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1. 发明专利

JP2002279547A DISASTER PREVENTION MONITORING EQUIPMENT AND COMPOSITE TYPE ALARM 失效
公开(公告)号：JP2002279547A
公开(公告)日：2002-09-27
申请号：JP2001082573
申请日：2001-03-22
申请人： HOCHIKI CO , TOKYO GAS CO LTD , YAZAKI CORP
发明人： ARINO TAKANORI , MASUDA HAJIME , OSAWA ISAO , HONMA HIROSHI , FUJIMOTO TATSUO , DOI TOSHIYUKI , HONJO TAEKO , NAGATA SATOSHI
IPC分类号： G08B17/06 , G08B19/00 , G08B21/00 , G08B21/16 , G08B23/00 , G08B25/00 , G08B25/04 , G08B29/12
摘要： PROBLEM TO BE SOLVED: To execute both fire monitoring and gas leakage monitoring by connecting a fire and gas leakage alarm to a sensor circuit similarly to a normal fire sensor. SOLUTION: A composite type alarm 5 is provided with a gas leakage alarm circuit part 5A operating by power supply from a commercial AC power source, detecting gas to give an alarm, and outputting a gas detection signal; a fire sensor circuit part 5B operating by power supply from the sensor circuit, outputting a fire occurrence information signal to a disaster prevention information panel via the sensor circuit when detecting a fire, and outputting the electrically separated fire occurrence information signal to the gas leakage alarm circuit part 5A to give a fire alarm; and a signal transmission circuit part electrically separating the gas detection signal outputted from the gas leakage alarm circuit part 5A, and outputting the gas detection signal to the disaster prevention information panel via the sensor circuit.

2. 发明专利

JP2002279548A DISASTER PREVENTION MONITORING EQUIPMENT AND COMPOSITE TYPE ALARM 失效
公开(公告)号：JP2002279548A
公开(公告)日：2002-09-27
申请号：JP2001082574
申请日：2001-03-22
申请人： HOCHIKI CO , TOKYO GAS CO LTD , YAZAKI CORP
发明人： ARINO TAKANORI , MASUDA HAJIME , OSAWA ISAO , HONMA HIROSHI , FUJIMOTO TATSUO , DOI TOSHIYUKI , HONJO TAEKO , NAGATA SATOSHI
IPC分类号： G08B19/00 , G08B23/00 , G08B25/00 , G08B25/04 , G08B29/12
摘要： PROBLEM TO BE SOLVED: To monitor a fire by connecting a composite type alarm to sensor lines similarly to a normal fire sensor. SOLUTION: This equipment monitors the fire by connecting the composite type alarm 6 to the sensor lines 2a, 2b drawn into a dwelling unit from a disaster prevention information panel together with the fire sensor. The composite type alarm 6 has a gas leakage alarm circuit part 6A operating by power supply from a commercial AC power source and giving a gas leakage alarm when detecting gas; and a fire sensor circuit part 6B operating by power supply from the sensor lines 2a, 2b and outputting a fire occurrence information signal to the disaster prevention information panel via the sensor lines 2a, 2b and to the gas leakage alarm circuit part 6A to give a fire alarm when detecting the fire. The fire sensor circuit part 6B electrically separates the fire occurrence information signal by a photo coupler 20 and outputs the signal to the gas leakage alarm circuit part 6A.

3. 发明专利

JP2002133545A FIRE ALARM DEVICE AND GAS FIRE SENSOR 失效
公开(公告)号：JP2002133545A
公开(公告)日：2002-05-10
申请号：JP2000317791
申请日：2000-10-18
申请人： YAZAKI CORP , TOKYO GAS CO LTD , HOCHIKI CO
发明人： NAGATA SATOSHI , NAKAE HIROSHI , DOI TOSHIYUKI , OSAWA ISAO
IPC分类号： G08B17/06 , G08B17/00
摘要： PROBLEM TO BE SOLVED: To provide a fire alarm device and gas fire sensor capable of improving the reliability of fire alarm. SOLUTION: This device comprises: a gas fire sensor 1a connected to both ends of a power source E through a power source line 5 to carry a first current to the power source line 5 in the detection of a fire and carry a second current including the first current to the power source line 5 in the detection of the fire and also a gas; an alarm circuit 15 for generating an alarm; and an alarm decision circuit 13 for changing the alarm generated in the alarm circuit 15 stepwise according to the first current or second current carried to the power source line 5.

4. 发明专利

JP2002279565A DISASTER MONITORING EQUIPMENT AND COMPOSITE ALARM DEVICE 失效
公开(公告)号：JP2002279565A
公开(公告)日：2002-09-27
申请号：JP2001082575
申请日：2001-03-22
申请人： HOCHIKI CO , TOKYO GAS CO LTD , YAZAKI CORP
发明人： ARINO TAKANORI , MASUDA HAJIME , OSAWA ISAO , HONMA HIROSHI , FUJIMOTO TATSUO , DOI TOSHIYUKI , HONJO TAEKO , NAGATA SATOSHI
IPC分类号： G08B21/00 , G08B21/16 , G08B25/04 , G08B29/02
摘要： PROBLEM TO BE SOLVED: To realize a remote examination on a gas detecting function by connecting a composite alarm device to a sensor circuit similarly to an ordinary fire sensor. SOLUTION: This disaster monitoring equipment is provided with a gas testing part 32 testing the gas detecting function of a gas leakage alarm circuit part 5A in every operation of a test switch 29 or at every set time set by a timer 33 and storing the test result, a test signal transmitting part electrically separating a test signal received from the sensor circuit to transmit it to the gas testing part 32 for outputting a test response signal showing the stored and held test result, a test response signal transmitting part transmitting the test response signal from the gas testing part 32 to the sensor circuit after electrically selecting the rest response signal, and a classification signal transmitting part transmitting a classification signal showing a type of the composite alarm device with the test response signal.

5. 发明专利

JP2002035147A REFUGE FACILITY FOR TUNNEL 失效
公开(公告)号：JP2002035147A
公开(公告)日：2002-02-05
申请号：JP2000221718
申请日：2000-07-24
申请人： HOCHIKI CO
发明人： OSAWA ISAO , ABIKO KOJI
IPC分类号： E21F11/00 , A62B3/00 , A62C2/08 , A62C3/00
摘要： PROBLEM TO BE SOLVED: To provide refuge facilities for a tunnel enabling safe and easy evacuation without being suffocated by smoke at the time of a fire in the tunnel. SOLUTION: Emergency doors 4 are installed along a tunnel side wall in specified distances for entrances into a communicating gallery leading to an evacuation gallery. A space forming apparatus for evacuation route is provided for forming an evacuation route space 15 by a water curtain 14, an air curtain, or a fireproof curtain at the time of a fire so as to shut out the smoke in a section leading to each of the emergency doors 4 of the tunnel side wall.

6. 发明专利

JP2002074544A METHOD FOR TESTING GAS LEAK ALARM 失效
公开(公告)号：JP2002074544A
公开(公告)日：2002-03-15
申请号：JP2000257519
申请日：2000-08-28
申请人： HOCHIKI CO
发明人： YUJI SADATAKA , OSAWA ISAO , MANMOTO ATSUSHI , ENDO ICHIRO , HAYAMA MAKOTO
IPC分类号： G01N27/12 , G01N1/00 , G01N27/04 , G08B21/00 , G08B21/14 , G08B21/16
摘要： PROBLEM TO BE SOLVED: To provide a method for testing a gas leak alarm capable of performing a test easily and speedily. SOLUTION: A control means 20 is provided with a storage means 24 for overwriting and storing a gas sensor output value and a fire sensor output value periodically, a testing means 27 for generating a test starting signal and an idling means 29 to carry out the first judging procedure (software side test) for testing whether gas leak detection by the control means is to be performed normally or not by adding a value not smaller than a value, by which judgment that an alarming state is generated is made to the output value of the gas sensor stored in the storage means 24, during idling after supplying power to a device, and the second judging procedure (hardware side test) for judging whether a gas detecting function is normal or not by applying testing voltage, by which a state not lower than the alarming state is generated forcedly, to a gas sensor 11 with a timing different from output measurement every output sampling timing of the sensor 11 and for judging whether a fire detecting function is normal or not by applying testing voltage, by which a state not lower than the alarming state is generated forcedly, to the fire sensor 14.

7. 发明专利

JP2002042268A FIRE AND GAS LEAKAGE ALARM 失效
公开(公告)号：JP2002042268A
公开(公告)日：2002-02-08
申请号：JP2000226754
申请日：2000-07-27
申请人： HOCHIKI CO
发明人： ENDO ICHIRO , YUJI SADATAKA , HAYAMA MAKOTO , MANMOTO ATSUSHI , TOMIZAWA TOSHIICHI , OSAWA ISAO , YAMAMOTO TOMOYA
IPC分类号： G08B21/00 , G08B17/00 , G08B21/16 , G08B23/00
摘要： PROBLEM TO BE SOLVED: To provide a fire and gas leakage alarm easily and surely analyzing the failure and error alarm. SOLUTION: This fire and gas leakage alarm is provided with a fire detecting sensor 11, a gas sensor 12, an alarm signal issuing means 21 issuing a fire signal or a gas detecting signal when the output of each sensor exceeds a prescribed threshold, a display part displaying the fire and the gas detection, and a failure detecting means 21 detecting the failure of the respective sensors and a power supply circuit part. This alarm is so constituted that the display part 14 has a plurality of display lamps, a voice output part 15 and a record means 16 are provided, and when the failure detecting means 21 finds the failure in either of the sensors 11 and 12, the failure alarm by display or voice is issued and a record means 16 records data of the all the sensors and the power supply circuit voltage, when the failure alarm is issued.

8. 发明专利

JPH0239395A FIRE RECEIVER 失效
公开(公告)号：JPH0239395A
公开(公告)日：1990-02-08
申请号：JP18972788
申请日：1988-07-29
申请人： HOCHIKI CO
发明人： OSAWA ISAO , ONO KAZUTOSHI , HOSHINA SEIICHI , TORIGOE YASUO
IPC分类号： G08B17/00 , G08B23/00
摘要： PURPOSE:To improve reliability by setting an area sound stop mode to an operation of an area sound stop switch in any of a usual time and a fire receiving time in a state that closing of a cover is detected, and also, in a state that opening of the cover is detected at the fire receiving time. CONSTITUTION:At the time of inspection, opening of a cover is detected, an area sound stop mode is set, and sounding of an area sound by an operation test in the course of inspection can be inhibited. On the other hand, the inspection is ended and when a cover 46 is closed without releasing an area sound stop switch, an area sound stop mode is released forcibly. Thereafter, fire receiving is executed, and when a setting operation of the area sound stop switch 36 is executed after an area sound is sounded, closing of the cover is discriminated, it is discriminated that fire receiving is being executed and the area sound stop mode is set effectively, and the area sound sounded by fire receiving can be stopped effectively. Also, in case when the area sound stop switch 36 has been operated again, a restoring operation is discriminated, and setting of the area sound stop mode is released.

9. 发明专利

JPH0239394A ACCUMULATION-TYPE FIRE RECEIVER 失效
公开(公告)号：JPH0239394A
公开(公告)日：1990-02-08
申请号：JP18972688
申请日：1988-07-29
申请人： HOCHIKI CO
发明人： OSAWA ISAO , ONO KAZUTOSHI , HOSHINA SEIICHI , TORIGOE YASUO
IPC分类号： G08B17/00
摘要： PURPOSE:To facilitate the confirmation of an accumulation time by constituting the title fire receiver so that an accumulating lamp for displaying a fact that an accumulation operation is being executed flickers, for instance, up to 20 seconds, and lighted from 20 seconds to 50 seconds after having received a fire, when a fire operation test at the time of inspection or the fire receiving in a steady monitoring state is executed. CONSTITUTION:When timers T1, T2 are started, the accumulation lamp 46 is flickered, a sensor line is released once, and subsequently, the timer T1 monitors whether the accumulation time reaches 20 seconds or not, and when it is before 20 seconds, whether new fire receiving exists or not is checked, and a flickering control of the accumulation lamp 46 is executed. When it is discriminated that the accumulation time set to the timer T1 reaches 20 seconds, the accumulation lap 46 in a flickering state is switched to lighting, whether the second timer 2 reaches a set time T2=50 seconds or not is checked, and when it is before 50 seconds, whether new fire receiving exists or not is checked, and it is repeated until the tier reaches 50 seconds. In such a way, by counting the flickering time of the accumulation lamp 46 by, for instance, a stopwatch, etc., 20 seconds of the accumulation time of a heat sensor can be confirmed.

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