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121. 发明专利

JP2000337713A BATH SYSTEM 失效
公开(公告)号：JP2000337713A
公开(公告)日：2000-12-08
申请号：JP14803999
申请日：1999-05-27
申请人： RINNAI KK
发明人： NAKAMURA KENJI
IPC分类号： F24H1/00 , F24H9/20
摘要： PROBLEM TO BE SOLVED: To eliminate special parts for simply monitoring the operating state of a pump and to decrease the number of parts by disposing a temperature sensor on the downstream side from the junction of an extra firing circulation circuit and a stirring acceleration circuit. SOLUTION: An ejection opening 13 located at the downstream end of a stirring acceleration circuit 12, i.e., at the junction of an extra firing circulation circuit and the stirring acceleration circuit 12, is opened downstream in a delivery pipe 28 projecting from the outer side wall of a water jacket 22 and the interior of the delivery pipe 28 serves as the outlet 280 of a heat exchanger 20. A temperature sensor 31 is disposed closely to the ejection opening 13 located at the downstream end of a stirring acceleration circuit 12 while facing the ejection opening 13 from the downstream side and connected electrically with a controller 46. When a pump P gets out of order and does not work, bathing water in a bathtub 10 can be prevented from being overheated by a detection signal of the temperature sensor 31.

122. 发明专利

JP2000320805A HOT WATER SUPPLY APPARATUS 失效
公开(公告)号：JP2000320805A
公开(公告)日：2000-11-24
申请号：JP12771999
申请日：1999-05-07
申请人： RINNAI KK
发明人： SAKAKIBARA DAIJU , KUMAGAI AKIRA
IPC分类号： F23C5/02
摘要： PROBLEM TO BE SOLVED: To surely prevent the combusting section from inclining during transportation or installation by standing a member for supporting the front side of the combusting section having a burner on the bottom wall plate of an outer case thereby forming a lightweight outer case inexpensively. SOLUTION: A supporting member 25 is stood between the lower end corner part on the front side of a burner case 3, i.e., a combusting section contained in an outer case 2, and the front end part of the bottom wall plate 10 thereof. The supporting member 25 is coupled, at the lower end part 26 thereof, to a coupling part 27 formed on the bottom wall plate 10 by means of screws 28. The supporting member 25 abuts, at the upper end part 29 thereof, against the lower end corner part on the front side of the burner case 3. The supporting member 25 comprises a supporting rod part 30 extending vertically, a first horizontal abutting part 31 formed at the upper end part 29 of the supporting rod part 30, and a second abutting part 32 raised from the forward edge of the first abutting part 31, all of which are formed by bending a band metal plate.

123. 发明专利

JP2000312887A METHOD AND APPARATUS FOR NEUTRALIZING DRAIN 失效
公开(公告)号：JP2000312887A
公开(公告)日：2000-11-14
申请号：JP12400699
申请日：1999-04-30
申请人： TOKYO GAS CO LTD , RINNAI KK
发明人： KOMUKAI SHIGERU , SHINTANI YOSHIHIRO , KOSHIMIZU DAISUKE
IPC分类号： C02F1/66 , C02F1/46 , F24H9/00
摘要： PROBLEM TO BE SOLVED: To continue the neutralization of drain for a long period without supplementing a neutralizing agent by a method in which an anode chamber and a cathode chamber installed separately are connected through a salt bridge, a diaphragm, or an ion exchange membrane, voltage is applied, acid drain is electrolyzed in the cathode chamber and discharged. SOLUTION: A saturated KCl aqueous solution 15 containing high concentration K+ ions of high conductivity is placed in an anode chamber 11, and an aluminum rod 13 as an anode is immersed. A cathode chamber 12 is provided with a drain pipe 21b for introducing drain 16, a drain pipe 21a for discharging the treated drain 16, a platinum rod 14 as a cathode, a pH meter for measuring the change in pH of the drainage 16 associated with the progress of electrolysis, an agitator 34, and others. Moreover, the anode chamber and the cathode chamber 12 are connected by a salt bridge 17. The cathode chamber 12 is filled with the drain 16, which is electrolyzed by applying direct current voltage to electrodes 13, 14 and discharged when neutralized close to pH 7.

124. 发明专利

JP2000310418A COMBUSTION EQUIPMENT 失效
公开(公告)号：JP2000310418A
公开(公告)日：2000-11-07
申请号：JP11893699
申请日：1999-04-27
申请人： RINNAI KK
发明人： KANDA AKIRA , SUGIMOTO WAKIJI
IPC分类号： F23N5/24 , F23N5/18
摘要： PROBLEM TO BE SOLVED: To provide combustion equipment which can surely cope with clogging caused in an air supply passage or an exhaust passage of a burner. SOLUTION: In combustion equipment, at least a part of an air supply passage 16 supplying air for combustion to burner 3 or of an exhaust passage 17 discharging combustion exhaust of the burner 3 is constituted of an air supply pipe (tubular body) made of resin which has an orifice 20 formed integrally in the middle part. First and second through holes 21 and 22 are opened in the air supply pipe 19 before and behind the orifice 20. A clogging detecting means 24 which detects the presence or absence of clogging of the air supply passage 16 or the exhaust passage 17 on the basis of a differential pressure before and behind the orifice 20 detected by a differential pressure sensor (differential pressure detecting means) 23 through the first and second through holes 21 and 22 is provided, and a combustion prohibiting means 25 which prohibits a burning operation of the burner 3 when the clogging detecting means 24 detects the clogging, is provided.

125. 发明专利

JP2000304259A COMBUSTION DEVICE 失效
公开(公告)号：JP2000304259A
公开(公告)日：2000-11-02
申请号：JP11037699
申请日：1999-04-19
申请人： RINNAI KK
发明人： TAKEUCHI HISATO , NAGAYA KATSUHIKO
IPC分类号： F23N5/24 , F23N5/02 , F23N5/26 , F24C5/12 , F24C7/08
摘要： PROBLEM TO BE SOLVED: To provide a combustion device, effecting the operational processing of the combustion device upon stopping the burning operation of the combustion device through an overheat preventing means correctly and prominent in the handling convenience as well as the operability of the same. SOLUTION: The temperature of a ceiling plate for a main body case, heated during the burning operation of a range burner 1, is detected by a temperature sensor 10 and when the detected temperature has become higher than an overheat deciding temperature, a solenoid valve 6 is closed forcibly to prevent overheating and an alarm on the overheating is given through an alarm lamp 12 and an alarm buzzer 14. Thereafter, when the detecting temperature of the temperature sensor 10 has been lowered to a value lower than a temperature whereat the re-starting of operation of the range burner is allowable, an alarm on the lowering of the temperature is given through the alarm lamp 12 and the alarm buzzer 14.

126. 发明专利

JP2000304253A COMBUSTION DEVICE 失效
公开(公告)号：JP2000304253A
公开(公告)日：2000-11-02
申请号：JP11232399
申请日：1999-04-20
申请人： RINNAI KK
发明人： YASUI SHIGEAKI , AOYAMA YOICHI , YAMADA HIROYUKI
IPC分类号： F23N5/00 , F23N5/18 , F23N5/24
摘要： PROBLEM TO BE SOLVED: To provide a combustion device capable of highly precisely detecting the occurrence of clogging of an air supply passage and an exhaust passage even before the start of combustion of a burner. SOLUTION: A combustion control means 50 performs prepurge by operating a combustion fan 10 to generate a flow of air at an air supply passage to a burner and an exhaust passage from the burner before the burner is ignited. A differential pressure sensor 18 detects a differential pressure ΔP between an air pressure on the side situated upper stream from an orifice and an air pressure on the side situated downstream therefrom. A clogging detecting means 51 judges that the air supply passage to the burner and the exhaust passage from the burner are in a clogged state when the differential pressure ΔP detected by the differential pressure detecting sensor 10 is reduced to a value lower than a clogging judgment value while a combustion control means 50 effects prepurge.

127. 发明专利

JP2000274666A THERMAL POWER REGULATOR 失效
公开(公告)号：JP2000274666A
公开(公告)日：2000-10-03
申请号：JP7618899
申请日：1999-03-19
申请人： RINNAI KK
发明人： MIZUTANI KEIICHI
IPC分类号： F23N1/00 , F23N5/26 , F24C3/12 , F24C15/00
摘要： PROBLEM TO BE SOLVED: To provide a thermal power regulator which can be ignited without fail even if it is used for a gas appliance which is operated to be driven in more than the position of ignition. SOLUTION: A cam 1 forignition freely movable to a rotary operation shaft 2 is provided, and the cam 1 for ignition is prevented from moving by a leaf spring 5 by making an engaging claw 3 engage with a step 12 at ignition operation, and if the rotational operation shaft 2 returns a little after ignition, the engaging claw 3 is released from the step 12, and the cam 1 for ignition retreats to the position where it does not actuate a switch sw1 for ignition.

128. 发明专利

JP2000257868A HEATING COOKING APPLIANCE 失效
公开(公告)号：JP2000257868A
公开(公告)日：2000-09-22
申请号：JP6261899
申请日：1999-03-10
申请人： RINNAI KK
发明人： MATSUYUKI NORIHIKO
IPC分类号： F24C3/12
摘要： PROBLEM TO BE SOLVED: To provide a heating cooking appliance in which a possibility of the generation of overcooked food is decreased when a user forgets to stop a heating means. SOLUTION: A heating cooking appliance comprises heating means 21 and 22 for heating materials F to be cooked housed in a heating chamber 20, a timing means 52 for counting an operation continuing time from the start of operations of the heating means 21 and 22 and an extinguishment forget preventing means 53 for stopping the operations of the heating means 21 and 22 when the operation continuing time of the heating means 21 and 22 counted by the timing means 52 exceeds a prescribed extinguishment forget decision time. The heating cooking appliance further includes a decision time selecting means 13 for instructing to select the extinguishment forget decision time in accordance with the operation of a user and a decision time setting means 54 for switching the extinguishment forget decision time to a first decision time set to time longer than an ordinary cooking time and to a second decision time set to time shorter than the first decision time in accordance with an instruction from the decision time selecting means 13.

129. 发明专利

JP2000254081A DISHWASHER 失效
公开(公告)号：JP2000254081A
公开(公告)日：2000-09-19
申请号：JP6371699
申请日：1999-03-10
申请人： RINNAI KK
发明人： ITO KOICHI
IPC分类号： A47L15/42 , A47L15/46
摘要： PROBLEM TO BE SOLVED: To prevent possible erroneous recognition of the opening or closing state of a door, caused by the lowered insulating performance of a electric heater. SOLUTION: There are arranged an electric heater 9 earthed for raising the temperature of water in a water storage tank, a connection circuit 28 in which a first series circuit portion 46 comprising a power source 50 with one side thereof earthed and a door switch 22 and a second series circuit portion 47 comprising a current actuation element 51, the electric heater 9 and a heater switch 57 are connected in parallel and a heater control means 54 recognizes the opening or closing state of a door from the presence of the operation of the current actuation element 51 to cut the energization of the electric heater 9 by opening the heater switch 57, an isolating switch 57 adapted to be opened when at least the door switch 22 is opened is inserted and connected between the second series circuit portion 47 and a terminal (c) connected to the side of the door switch 22 of the first series circuit portion 46 out of two terminals, i.e., one of the second series circuit portion 47 and the other of the current actuation element 51.

130. 发明专利

JP2000227294A HEAT EXCHANGER 失效
公开(公告)号：JP2000227294A
公开(公告)日：2000-08-15
申请号：JP2600599
申请日：1999-02-03
申请人： RINNAI KK
发明人： JINNO HIDEYUKI , KUMAGAI AKIRA , OKAMOTO HIDEO , KISHIMOTO MIYUKI
IPC分类号： F24H9/00 , F28D1/00 , F28F1/32
摘要： PROBLEM TO BE SOLVED: To improve a heat exchanging efficiency and to prevent formation of drain by further expediting heat exchanging at a rear side (downstream side of an exhaust flow) of a heat absorbing tube by combustion exhaust gas in a heat exchanger having a plurality of fins aligned at a predetermined interval in a can and the plurality of the heat absorbing tubes passing the fin groups and aligned in a direction substantially perpendicular to a flow of the exhaust gas. SOLUTION: The offset fins 12 extended from a downstream area of an exhaust gas flow of a heat absorbing tube H of fins F to a position out of the tube H in a direction perpendicular to the flow are provided. The fins 12 are formed in a plate-like state made by louvering the fins F, disposed at an intermediate part of the adjacent fins F, and coupled integrally with the fins F in a downstream area of the flow of the tube H.

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