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11. 发明专利

JPH06281243A METHOD FOR AUTOMATICALLY FILLING HOT WATER INTO BATHTUB 失效
公开(公告)号：JPH06281243A
公开(公告)日：1994-10-07
申请号：JP9683393
申请日：1993-03-30
申请人： NORITZ CORP
发明人： KATAOKA HISATO , SUZUKI TAKAMI , TAKASE MASAAKI
IPC分类号： F24H1/00 , F24H1/46
摘要： PURPOSE:To make it possible to control the level of filled hot water precisely to a set water level even if a bathtub having any volume is used by a method wherein in a second hot-water filling operation and the following operations, the bottom area of the bathtub computed at a first operation is multiplied by a certain water-level difference to obtain a water volume so that water having the computed volume is filled into the bathtub. CONSTITUTION:At a first operation, bottom area S of a bathtub is calculated to store it. The calculation is performed using S=Qdivided by (Ps-P1) by a method wherein a reference output value P1 of a water level sensor 52 is set and thereafter a water quantity Q having been filled into the bathtub by a transfer filling until the sensor 52 senses an output value Ps and a water level difference corresponding to the diffierence between the values Ps and P1 are provided. The are as of the bathtub bottom computed and stored is provided by multiplying the area S by a certain difference of water level in a second operation and the following operations. As a result, even if a bathtub 10 of any volume is used, a water level which is slightly higher than a level, wherein a circulation hole of a bathtub circulation fitting 11 is submerged, can be used as a reference level, and hence the water filling level can be controlled precisely to a set level.

12. 发明专利

JPH05149622A DECIDING METHOD FOR CIRCULATION OF BATHTUB WATER OF BATH BOILER EQUIPMENT 失效
公开(公告)号：JPH05149622A
公开(公告)日：1993-06-15
申请号：JP33768291
申请日：1991-11-26
申请人： NORITZ CORP
发明人： TAKASE MASAAKI , SUZUKI TAKAMI , KATAOKA HISATO , KAWAMI ISAO , TATSUMURA TOSHIYA , HATAKE YOJI , MATSUBARA TADASHI , MURAKAMI MASAYOSHI
IPC分类号： F24H1/00 , F24H1/46
摘要： PURPOSE:To obtain a method for effectively and smoothly deciding circulation of bathtub water in response to the magnitude of a supplying water flow rate in a bath boiler equipment. CONSTITUTION:A method for deciding circulation of bathtub water for a bath boiler comprises the steps of circulating the water to the boiler 20 through a circulation passage 30 to execute additional heating of the water, and supplying warm water into a bathtub 10 through the passage of the boiler. Thus, a driving time of a circulation pump for deciding the circulation is altered according to the magnitude of supplying water flow rate per unit time.

13. 发明专利

JPH05149618A BATH TUB DEVICE WITH REFRIGERATION PREVENTION FUNCTION 失效
公开(公告)号：JPH05149618A
公开(公告)日：1993-06-15
申请号：JP33768491
申请日：1991-11-26
申请人： NORITZ CORP
发明人： TAKASE MASAAKI , SUZUKI TAKAMI , KATAOKA HISATO
IPC分类号： F24H1/00
摘要： PURPOSE:To provide a bath tub device with refrigeration prevention function which uses no water flow switch, etc., has a simple constitution, and generates no noises due to the idle rotation of a circulation pump while refrigeration prevention operation is being made. CONSTITUTION:A circulation pump 13 is provided with a rotational speed sensor 14, and the circulation pump 13 is stopped when the rotational speed sensor detects a rotational speed that is higher by a specified speed than the stationary rotational speed of the circulation pump during refrigeration prevention operation, and in its place a refrigeration prevention heater is turned ON.

14. 发明专利

JPH0552425A METHOD FOR CONTROLLING CIRCULATING PUMP IN BATHWATER HEATER 失效
公开(公告)号：JPH0552425A
公开(公告)日：1993-03-02
申请号：JP24254291
申请日：1991-08-27
申请人： NORITZ CORP
发明人： TAKASE MASAAKI , SUZUKI TAKAMI , KATAOKA HISATO
IPC分类号： F24H9/00 , A61H23/00 , F24H1/00
摘要： PURPOSE:To operate a suction type circulating pump in a bathwater heater without allowing its suction operation to last long even when the apparatus is set in a weak mode for the circulation of the bathwater. CONSTITUTION:The subject relates to an apparatus which is designed to heat bathwater by circulating it through a bathwater heater 13 by the use of a suction type circulating pump 14 and in which the operation of said circulating pump is capable of being shifted to 'strong' or 'weak' according to which of strong and weak modes for the circulation of the bathwater the apparatus is set in. At the start of the circulating operation, even when the apparatus has been set in the weak circulation mode, the circulation pump 14 is operated for the 'strong' circulation until a water-flow detective switch 16 in the circulation line detects a flow of water.

15. 发明专利

JPH04272487A WATER STREAM CIRCULATION DEVICE 失效
公开(公告)号：JPH04272487A
公开(公告)日：1992-09-29
申请号：JP5611791
申请日：1991-02-26
申请人： NORITZ CORP
发明人： SASAKI SHINJI , SUZUKI TAKAMI , KATAOKA HISATO , IKEUCHI YASUHIDE , TAKASE MASAAKI , TSUJI EIICHI , MATSUBARA TADASHI , YAMAMOTO YOSHITAKA
IPC分类号： F04B49/06 , F04D15/00 , F24H1/00
摘要： PURPOSE:To provide self-adjustability so that the water quantity will not lower below the Off level of a water stream switch, by studying the Off level of the water stream switch. CONSTITUTION:The phase angle when an arc ignition circuit 19 is turned on, is decreased so that the water quantity will become over the On level of a water stream switch 7. Then the phase angle in the same condition is enlarged so that the water quantity lowers below the Off level of the water stream switch 7. In this process, the phase angle corresponding to the Off level of the water stream switch 7 is stored 21. This shall be smaller than the phase angle which stores in memory the turn-on phase angle of the arc ignition circuit 19 in the weak mode.

16. 发明专利

JPH0486408A CONTROLLING METHOD FOR IGNITING GAS PRESSURE AT THE TIME OF SWITCHING CAPACITY 失效
公开(公告)号：JPH0486408A
公开(公告)日：1992-03-19
申请号：JP20285690
申请日：1990-07-31
申请人： NORITZ CORP
发明人： KATAOKA HISATO , TAKASE MASAAKI , SUZUKI TAKAMI , FUJIMOTO FUMIMASA , SASAKI SHINJI
IPC分类号： F23N1/00
摘要： PURPOSE:To improve flame transfer and to reduce igniting sound and resonance sound by varying the opening of a proportional valve to large or small in a predetermined short time when a switching valve is opened after starting combustion of a first section burner to switch combustion capacity to a large capacity, and varying gas pressure to be supplied to a main burner to upper or lower value in a predetermined short time width. CONSTITUTION:If there is a request for switching combustion capacity to large after flame transfer time to the entire predetermined first section burner 2 is elapsed, a switching valve SV2 is opened to supply gas to a second section burner 3, the opening of a proportional valve DU is varied, alleviating igniting gas pressures are sequentially held for predetermined time and varied from P2 to P3 (P2>P3), from P3 to P4 (P3 P5), from P5 to P6 (P5

17. 发明专利

JPH03284307A FILTER 失效
公开(公告)号：JPH03284307A
公开(公告)日：1991-12-16
申请号：JP8603990
申请日：1990-03-30
申请人： NORITZ CORP
发明人： KANAZAWA KOTETSU , SAKURAI SATOSHI , NODA AKIYOSHI , KOBORI MOTOHISA , SANADA SO , YAMADA YOSHITAKA , SASAKI SHINJI , KATAOKA HISATO , SUZUKI TAKAMI , TAKASE MASAAKI , FUJIMOTO FUMIMASA
IPC分类号： A47K3/00 , B01D35/027 , B01D35/16 , F24H9/00
摘要： PURPOSE:To take a bath without lowering the water level in the bathtub and discharging the used bathwater and to prevent development of rancidity even if the filter is operated by carrying out backwashing for a definite time when the operating switch is turned on and the water level is above a specified level. CONSTITUTION:The operating switch is turned on, the water level is detected following the procedure, and the water level is detected by a pressure sensor 7. The backwashing circuit 30 side and the tank filter 22 are communicated by a three-way valve 25 when the specified water level is exceeded, and the tank filter 22 side and a waste backwashing water discharge circuit 24 are communicated by a three way valve 26. Besides, a hot water supply circuit 3 and the backwashing circuit 30 are communicated by a three-way valve 16. Water is passed under these conditions, and backwashing is carried out for a specified time. A supplementary burning circuit 4 and the hot water supply circuit 3 are then again communicated by the three-way valve 16, the circulating circuit 2 side is closed by the three-way valves 25 and 26, and the supply of hot water is started.

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