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1. 发明专利

JP2003180513A RICE COOKER 审中-公开
公开(公告)号：JP2003180513A
公开(公告)日：2003-07-02
申请号：JP2002349704
申请日：2002-12-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOYAMA MASAHIRO , IKEDA NORIO , ARAI TOSHIO , SHIMONO SEIJI , TANAKA ATSUSHI , HORIUCHI KIYOSHI , NAKAMURA TOSHIYUKI , KOMA ATSUSHI
IPC分类号： A47J27/00
摘要： PROBLEM TO BE SOLVED: To provide a rice cooker, a cover body of which has excellent operability in opening and closing and which can fully heat the upper part of a pot to prepare delicious cooked rice. SOLUTION: A pot 13 is stored in a rice cooker main body 12 and a cover body 16 is provided at the upper part of the pot 13 so as to be freely opened and closed. A cover induction heating coil 22 is disposed in the cover body 16. A distance between the cover induction heating coil 22 and a heat plate 21 is set smaller enough to sufficiently heat the heat plate 21 without enlarging the cover induction heating coil 22 in size, and weight of the cover body 16 is not too heavy and operability of the cover body 16 in opening and closing is good. COPYRIGHT: (C)2003,JPO

2. 发明专利

JPH09164064A RICE COOKER 失效
公开(公告)号：JPH09164064A
公开(公告)日：1997-06-24
申请号：JP32676295
申请日：1995-12-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAKO SAORI , KOMA ATSUSHI , SHIMONO SEIJI , OYA HIROSHI , NIIYAMA KOJI , SHIBATA MASAAKI , KATAKASU MAKOTO
IPC分类号： A47J27/00
摘要： PROBLEM TO BE SOLVED: To suppress the drying-up of cooked rice regardless of the quantity of cooked rice by controlling a steam port opening/closing device to be opened and closed prescribed times in the rice cooking process. SOLUTION: When the water absorbing process is finished and the heating process is started while a steam port 4 is closed, a heating means 2 is continuously kept on until a temperature detecting means 6 detects the prescribed temperature before boiling. When the prescribed temperature is detected, the temperature in a pot is considered to be uniform, the steam port 4 is kept closed in the subsequent rice cooking-up process, the heating means 2 is kept on until a cover temperature detecting means 7 detects the prescribed boiling temperature, and the quantity of cooked rice is judged based on the elapsed period of the process. The steam port 4 is opened in the boiling maintaining process in which the electric power is changed in response to the quantity of cooked rice, and this process is finished when the temperature detecting means 7 detects the prescribed temperature. The follow-on cooking process is then conducted for the fixed period when the steam port 4 is repeatedly opened during a resting time and closed during the heating time prescribed times. The steam port 4 is opened in the steaming process in which the cooked rice is steamed without being heated for the fixed period.

3. 发明专利

JPH08150072A RICE COOKER 失效
公开(公告)号：JPH08150072A
公开(公告)日：1996-06-11
申请号：JP29658394
申请日：1994-11-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ENDO HISAKAZU , KOYAMA MASAHIRO , SHIMONO SEIJI , KOMA ATSUSHI , ARAI TOSHIO , HORIUCHI KIYOSHI , NAKAMURA TOSHIYUKI , IKEDA NORIO
IPC分类号： A47J27/00
摘要： PURPOSE: To provide a cover opening/closing device with high reliability extending over a long period as relaxing vibration and shock when a cover is opened in a rice cooker provided with an automatic cover opening device. CONSTITUTION: This cooker is equipped with a rice cooker main body whose upper face is opened, a cover 2 which covers an upper face opening part, a hinge shaft 3 which supports pivotally the cover 2 freely openably/closably, a spring 4 which presses the cover 2 in an opening direction, and a brake means 7 consisting of plural gears and a centrifugal brake device, etc. When engagement is released by operating an operating button 8 provided in front of the upper part of the rice cooker main body, the cover 2 begins to open by the force of the spring 4, however, the opening force of the cover 2 is transmitted to the brake means 7 via the hinge shaft 3. In the brake means 7, the rotation of the hinge shaft 3 is increased by a gear group, and it is transmitted to the centrifugal brake device, then, a braking force is applied, and also, the braking force functions from the beginning of the opening of the cover 2, which opens the cover 2 smoothly.

4. 发明专利

JPH08150071A RICE COOKER 失效
公开(公告)号：JPH08150071A
公开(公告)日：1996-06-11
申请号：JP29657894
申请日：1994-11-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IKEDA NORIO , ARAI TOSHIO , SHIMONO SEIJI , KOYAMA MASAHIRO , HORIUCHI KIYOSHI , KOMA ATSUSHI , TANAKA ATSUSHI , NAKAMURA TOSHIYUKI
IPC分类号： A47J27/00
摘要： PURPOSE: To provide a safe rice cooker by preventing the layer short circuit of a cover induction heating coil even when steam in a pan intrudes into a cover in a rice cooker of which the cover is provided with a cover induction heating coil. CONSTITUTION: This cooker is formed in such a way that a cover induction heating coil 21 which induction-heats a heating plate 20 is arranged in the cover, and also, a flame retardant coil housing table 24 which houses the cover induction heating coil 21 is provided, and plural projecting parts 25 which support the lower face of the cover induction heating coil 21 are formed on the coil housing part bottom of the coil housing table 24, and the cover induction heating coil 21 is covered with a flame retardant potting material 27 in a coil housing part 26.

5. 发明专利

JPH05154037A PRESSURE REGULATOR FOR RICE COOKER 失效
公开(公告)号：JPH05154037A
公开(公告)日：1993-06-22
申请号：JP31771491
申请日：1991-12-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIMONO SEIJI , ISHIKAWA HARUO
IPC分类号： A47J27/00
摘要： PURPOSE:To prevent overboiling of a rice cooker which is provided with a valve at an outer lid unit steam outlet. CONSTITUTION:An inner pot 1 into which rice and water are put, an outer lid unit to cover the inner pot 1 are provided. The outer lid unit consists of a top member 2 and a bottom member 3, and through holes 4a, 4b are made in them facing each other. A steam outlet is formed with a cylindrical body 5 which is engaged between these holes 4a, 4b and is made of soft material. The cylindrical body 5 consists of an outer seal section 6 which prevents steam from penetrating into the outer lid unit, and a cylindrical outlet section 7 which covers the through hole 4b of the bottom member 3, being provided in the steam outlet, and dividing a space part in the steam outlet. On the side wall of the outlet section 7, a vent hole 8 is made, and at the lower part thereof, an approximately skirt-shaped tongue section 9 which is pressed to the bottom member 3 is made.

6. 发明专利

JPH04187116A FAN MOTOR FOR COOKER 失效
公开(公告)号：JPH04187116A
公开(公告)日：1992-07-03
申请号：JP31851390
申请日：1990-11-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIMONO SEIJI , ISHIKAWA HARUO
IPC分类号： F04D29/34 , A47J27/00
摘要： PURPOSE:To perform a function as a stopper for a fan when the fan is pushed in, by a method wherein the title fan motor is composed of a shaft inserted into a rotor, a bearing for rotatably holding the shaft, a stator for mounting the bearing, and the fan mounted on the shaft; and a tonguelike piece being in contact with the top end of the shaft is provided at the end face of the fan. CONSTITUTION:A cooker main body A is composed of a lower part main body 11, a protecting case 12, a heating coil 13, a protecting case cover 14, a control circuit board 15, a fan motor 16, etc.; and a cookpot 17 is removably held at the inside of the cooker main body A. The fan motor is composed of a shaft 19 inserted into a rotor 18, a bearing 20 for rotatably holding the shaft 19, a stator 21 for mounting the bearing 20, etc.; and a fan 22 is amounted on the shaft 19 by inserting. For the fan 22, a tonguelike piece 23 is provided at the end face thereof, and in the case where the fan 22 is put on the shaft 19, the fan 22 is designed so that the tonguelike piece 23 is in contact with the top end of the shaft 19 when the fan is pushed in to a proper position for the control circuit board 15 and the lower main body 11.

7. 发明专利

JPH04122319A COOKING DEVICE 失效
公开(公告)号：JPH04122319A
公开(公告)日：1992-04-22
申请号：JP24442390
申请日：1990-09-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TANAKA ATSUSHI , SHIMONO SEIJI , KUBO MASAFUMI
IPC分类号： A47J27/00
摘要： PURPOSE:To heat food uniformly and economically, and improve the workability and safety of assembling by a method wherein the protective frame bottom section of the containing section of a pot is formed with non-metallic material, induction coils are arranged on the protective frame bottom section, and a resistance heater on a protective frame side surface section, and a thermal insulation plate using metallic material on the outer periphery are arranged at positions upper than almost the same level position as a lower surface position. CONSTITUTION:A protective frame bottom section 3 is formed with thermoplastic material, and a protective frame side surface section 4 is formed with a metal material, for example, a aluminum-plated steel plate. Induction coils 5 are arranged on the external surface of the protective frame bottom section 3 to be confronted with the bottom section of a pot 2 in order to enhance the cooling effect, and are retained between the bottom section 3 and a protective frame cover 6 screw-stopped on the protective frame bottom section 3. A space between the lowest section of the protective frame side surface section 4 and the highest section of the induction coils 5 is set with the sections separated from each other at the intervals of 15-30mm for example, and without heating the protective frame side surface section 4 abnormally due to induction, heating, and also in view of a heat retaining surface, the longest dimension for reducing a cost can be taken.

8. 发明专利

JPH0464318A COOKER 失效
公开(公告)号：JPH0464318A
公开(公告)日：1992-02-28
申请号：JP17603290
申请日：1990-07-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KUBO MASAFUMI , ISHIKAWA HARUO , SHIMONO SEIJI , TANAKA ATSUSHI
IPC分类号： H05B6/12 , A47J27/00 , F24C7/02
摘要： PURPOSE:To minimize thickness of a cooker body, to improve suction efficiency and to reduce suction troubles due to absorption of polyethylene bags and the like by providing a cross-flow air fan on a bottom part of the cooker body. CONSTITUTION:A pot 3 is inductance heated by an inductance coil 4 to make cooking. At this time, the inductance coil 4, a ferrite 5 and a control circuit 6 are cooled by an air fan 9. As the air fan consists of a cross-flow fan, a suction port 8 can be provided in a bottom side part of a cooker body 1 without raising the height of the cooker body 1. In addition, by the provision of the suction port 8 in the bottom side part of the cooker body 1, it is unnecessary to suction air through a space between a floor surface and the bottom surface of the cooker body. Therefore, suction efficiency can be improved and it becomes very rare that light weight substances such as polyethylene bags on a floor are absorbed to cause a suction trouble.

9. 发明专利

JPH0461823A EXCESSIVE TEMPERATURE RISE PREVENTING DEVICE FOR COOKING APPLIANCE 失效
公开(公告)号：JPH0461823A
公开(公告)日：1992-02-27
申请号：JP17473090
申请日：1990-07-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIMONO SEIJI , TANAKA ATSUSHI , ISHIKAWA HARUO , KUBO MASAFUMI , KINOSHITA KENJI , ARAI TOSHIO
IPC分类号： H01H37/76 , A47J27/00
摘要： PURPOSE:To prevent the excessive temperature rise by detecting the abnormal temperature and suspending the electric conduction to a heater by installing a case which is energized by a spring and moved vertically by the mounting and demounting of a pot, and allowing the case to contact a heat sensing member in contact with a temperature fuse. CONSTITUTION:The outer case 20 of a temperature detecting device 14 is fixedly installed on a heater 11, and an inner case 21 is supported on an outer case 20 so as to be press- attached on the bottom surface of a pot 15 by a spring 22. A pot sensor 23 for sensing the temperature of the bottom of the pot 15 is nipped between a temperature sensing plate 24 and a fixed plate 25 (heat sensing member) and fixed at the upper part of an inner case 21. A temperature fuse unit 26 for detecting the abnormal temperature rise of the heater 11 is bent into a nearly U-figure form, and nipped and fixed between the hook 21a of the inner case 21 and the fixed plate 25 so that a temperature fuse 27 contacts the fixed plate 25. When a trouble is generated on the pot sensor 23 or a control substrate 18 and the temperature abnormally rises, the heat is transmitted to the heat sensing plate 24 in contact with the bottom surface of the pot 15 and the fixed plate 25, and the temperature fuse 27 receives the heat, thus the temperature sharply rises and the electric current cut-off operation is performed.

10. 发明专利

JPH0330721A COOKER 失效
公开(公告)号：JPH0330721A
公开(公告)日：1991-02-08
申请号：JP16585889
申请日：1989-06-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ARAI TOSHIO , SHIMONO SEIJI
IPC分类号： A47J27/00
摘要： PURPOSE:To close a boiling-over hole with glutinous content so that a large form cannot be formed with steam jetting from a lower section, and prevent the glutinous content from flowing outside a cooker by arranging stepped sections in two or more directions at least around the boiling-over hole. CONSTITUTION:When water in a proper quantity or more to the quantity of rice is contained in error to perform cooking, then at the time point of the boiling of the water, excessive steam and glutinous content are formed in the shape of foam and are moved upward on the upper section of an internal cover 7 through the boiling- over hole 8 of the internal cover 7. It is done in the same manner also when the cooking is performed with high power, and the jetting steam is more speedy than normal one, and steam along with more glutinuous content is jetted on the upper section of the internal cover 7 through the boiling-over hole 8. On the area ratio of the boiling-over hole 8 to a suction hole 9, if the boiling-over hole 8 is formed to be sufficiently large, boiling-over is concentrated to the hole 8, and so the boiling- over from the suction hole 9 is not generated. The glutinous content boiled over on the upper step surface 7a of the internal cover 7 is stored to close the boiling-over hole 8, but if there is any surface stepped downward near the hole 8, said content flows in the direction D, and the hole 8 is not closed with it.

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