公开(公告)号：JPH06300428A

公开(公告)日：1994-10-28

申请号：JP8714293

申请日：1993-04-14

Applicant: MATSUSHITA REFRIGERATION

Inventor： MATSUMOTO TAKUYA ,  MURONO YOSHIRO ,  NAKADA JUNICHI ,  TSUJITA HIROSHI ,  SHIMABARA KAZUO ,  KOTORII TOSHIO ,  OHASHI NOBUO ,  OBATA SHINGO ,  MORIKIYO KAZUHIRO ,  HIRAMATSU SHIZU

IPC: C08G18/08 ,  C08G18/00 ,  C08G18/76 ,  C08G101/00 ,  C08J9/14 ,  F25D23/02

Abstract: PURPOSE:To obtain a door surface of good quality by forming an urethane heat insulating material from a particular composition and forming the door surface from a graft copolymer of a particular composition, a copolymer of a vinyl compound cyanide of a particular composition and an aromatic vinyl compound, and a mixture of a resin compound of a particular composition and polymethyl metacrylate. CONSTITUTION:A urethane heat insulating material is formed by polyol, a foam stabilizer, a catalyst, a foaming agent such as HCFC 132 and the like, and an isocyanate component such as an organic isocyanate of polymeric MDI. A door surface of a resin is formed by a graft copolymer which is obtained by polymerizing a mixture of a vinyl compound cyanide of 35-52 percent by weight and an aromatic vinyl compound of 48-65 percent by weight in the presence of conjugate diene based synthetic rubber, a copolymer of a vinyl compound cyanide of 35-52 percent by weight and an aromatic vinyl compound of 48-65 percent by weight, and a resin composite of 30-70 percent by weight coated with the copolymer and mixed with poly n-butylacrylate resin and polymethyl methacrylate of 70-30 percent by weight.

公开(公告)号：JPH05322438A

公开(公告)日：1993-12-07

申请号：JP12316692

申请日：1992-05-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： TSUJITA HIROSHI ,  MURONO YOSHIRO ,  NAKADA JUNICHI ,  SHIMABARA KAZUO ,  OBATA SHINGO ,  MORIKIYO KAZUHIRO ,  MATSUMOTO TAKUYA ,  OHASHI NOBUO ,  KOTORII TOSHIO

IPC: F25D23/02 ,  F25D23/08

Abstract: PURPOSE:To acquire a strong chemical attaching property, and prevent cracks, etc., from happening by a method wherein a urethane insulating material for which a specified flon is used as a foaming agent is integrally expanded in a box-shaped space formed by a door front made of a resin, and a specified coating is applied on the surface of the door front with which the insulating material comes into contact. CONSTITUTION:The title heat insulating door 2 is constituted by integrally expanding a urethane insulating material 4 for which flon 123 or flon 141b is used as a foaming agent in a box-shaped space being formed by a door front 3 made of a resin. Also, an acryl or urethane coating 9 is applied on the surface of the door front 3, which comes into contact with the urethane insulating material 4. For the acryl or urethane coating 9, a double liquid reacting type is used, and this type is hard to swell by the flon 123 or flon 141b, which is a foaming agent, and is provided so as to work as a barrier. By this method, the door front 3 made of a resin does not receive a strong chemical attack, and the molecular chain of the resin is prevented from being broken, and cracks are prevented from being made.

公开(公告)号：JPH05118744A

公开(公告)日：1993-05-14

申请号：JP28104991

申请日：1991-10-28

Applicant: MATSUSHITA REFRIGERATION

Inventor： MATSUMOTO TAKUYA ,  SHIMABARA KAZUO ,  MURONO YOSHIRO ,  TSUJITA HIROSHI ,  KOTORII TOSHIO ,  NAKADA JUNICHI ,  OHASHI NOBUO ,  OBATA SHINGO ,  MORIKIYO KAZUHIRO

IPC: F25D23/02 ,  F25D23/08

Abstract: PURPOSE:To solve the quality deterioration problems resultant from an increase in a material cost of an outer shell and an outer shell manufacturing process and obtain an insulation door to which a foaming agent, which is outside the object of Freon regulation, is applied in the case when the rear side of the outer shell of the insulation door of a refrigerator is coated with corrosion resistant paint. CONSTITUTION:This insulation door comprises an outer shell 1 of the insulation door, an inner shell 3, a frame member 2, a foaming agent 7 which is for foaming insulation material and is filled between the inner shell and frame member 2 and a coat 5 applied on the surface of the outer shell.

公开(公告)号：JPS63180070A

公开(公告)日：1988-07-25

申请号：JP1184087

申请日：1987-01-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  SASAKI TAKAO ,  KOTORII TOSHIO ,  MURONO YOSHIRO

IPC: F25D23/08

公开(公告)号：JPS6365281A

公开(公告)日：1988-03-23

申请号：JP20992186

申请日：1986-09-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  SASAKI TAKAO ,  MURONO YOSHIRO ,  KOTORII TOSHIO

IPC: F25D23/08

公开(公告)号：JPH08261633A

公开(公告)日：1996-10-11

申请号：JP6615595

申请日：1995-03-24

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  MURONO YOSHIRO ,  MATSUMOTO TAKUYA ,  HIRAMATSU SHIZU

IPC: F25D23/00

Abstract: PURPOSE: To suppress bacteria and mold floating inside a refrigerator or propagating on the surface of foodstuff therein and to keep freshness of the foodstuff for a long period. CONSTITUTION: A liquid holding material 8 impregnated with a solution prepared by mixing dibutyl hydroxytoluene being an antioxidant and ester isothiocyanate being a volatile antibacterial agent is provided on ceiling surfaces 10 of a freezing chamber and a refrigerating chamber of a refrigerator 1 by frame parts 9.

公开(公告)号：JPH0674649A

公开(公告)日：1994-03-18

申请号：JP22692292

申请日：1992-08-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： MATSUMOTO TAKUYA ,  MURONO YOSHIRO ,  NAKADA JUNICHI ,  TSUJITA HIROSHI ,  KOTORII TOSHIO ,  OHASHI NOBUO ,  MORIKIYO KAZUHIRO ,  OBATA SHINGO ,  SHIMABARA KAZUO

IPC: F25D21/04 ,  F25D23/02

Abstract: PURPOSE:To prevent degradation of a heat transfer rate of a foamed heat insulating material and dew condensation on surfaces of a refrigerator by providing a constitution which comprises an outer shell of a synthetic resin, an inner shell, a foamed heat insulating material filled in a space surrounded by the outer shell and the inner shell and an aluminum foil applied to a rear surface of the outer shell. CONSTITUTION:A heat insulating door comprises an outer shell 1 of a synthetic resin, an inner shell 2 of a synthetic resin combined with the outer shell 1, a foamed heat insulating material 3 filled in a space defined by the outer shell 1, the inner shell 2 and a frame member and closely attached to the outer shell 1 and the inner shell 2, and an aluminum foil 4 applied to a rear surface of the outer shell 1. With this arrangement, moisture outside of a chamber of a refrigerator will not pass through the outer shell 1 to accumulate in the foamed heat insulating material 3 in the form of water, so that a heat transfer rate of the foamed heat insulating material 3 is not degraded thus enabling prevention of dew condensation on a surface of a door of a refrigerator. Also, it is not necessary to enlarge a wall thickness of the door with the result that it is possible to reduce the material cost of the foamed heat insulating material 3 in manufacture of doors and enhance a volume efficiency of a chamber of a refrigerator.

公开(公告)号：JPH05288461A

公开(公告)日：1993-11-02

申请号：JP9048292

申请日：1992-04-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： TSUJITA HIROSHI ,  SHIMABARA KAZUO ,  NAKADA JUNICHI ,  MURONO YOSHIRO ,  KOTORII TOSHIO ,  OHASHI NOBUO ,  MORIKIYO KAZUHIRO ,  MATSUMOTO TAKUYA ,  OBATA SHINGO

IPC: F25D23/06 ,  F25D23/08

Abstract: PURPOSE:To charge a foamable heat insulator in a uniform density over an entire heat insulation box by charging the insulator in a space between an inner box and an outer box, and mounting a vacuum heat insulation panel at a position which avoids a passage of stock solution of the state before the insulator is foamed at the side of the outer box in the space. CONSTITUTION:A heat insulation box 1 for a refrigerator, etc., has an inner box 2 made of plastic, and an outer box 3 made of iron. A foamable heat insulator 4 such as hard polyurethane foam, etc., is charged in a space between the boxes 2 and 3 through an inlet 6, and a vacuum heat insulation panel 5 is provided on an inner surface of the box 3 in the space. In this case, the panel 5 is mounted at a position which avoids a passage 11 of stock solution 7 of the state before the insulator 4 to be poured from the inlet 6 is foamed. Thus, a flow of the solution 7 is not interrupted by the panel 5, and the insulator 4 can be also charged sufficiently in uniform density above the panel 5.

公开(公告)号：JPH0571863A

公开(公告)日：1993-03-23

申请号：JP23600891

申请日：1991-09-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： NAKADA JUNICHI ,  MURONO YOSHIRO

IPC: A61L2/10 ,  F25D23/00 ,  F25D23/04

Abstract: PURPOSE:To perform a clean preservation by arranging a germicidal lamp near an egg shelf receiver and sterilizing bacteria existing on the surface of an egg with the ultraviolet ray of the lamp. CONSTITUTION:A germicidal lamp 9 such as an ultraviolet ray lamp, etc., is arranged on an egg shelf 5. The lamp 9 receives electric power from a power source and generates an ultraviolet ray 10. When eggs 7, an egg shelf receiver 4 and the shelf 5 are irradiated, bacteria group 8 such as Penicillium, etc., adhered thereto is sterilized for a short time. For example, 80% of the bacteria group is reduced by irradiating for about 3min in the case of an output of 15W. On the contrary, if it is irradiated for an excessively long time, change of properties of the eggs 7, discoloring of a plastic component such as the receiver 4 occur. Accordingly, irradiating intensity and time are controlled. The periphery of the shelf 5 contaminated with the group 8 can be largely cleaned by arranging the lamp 9, and the eggs 7 can be preserved cleanly for a long period.

公开(公告)号：JPH0240482A

公开(公告)日：1990-02-09

申请号：JP19141288

申请日：1988-07-29

Applicant: MATSUSHITA REFRIGERATION

Inventor： MURONO YOSHIRO

IPC: F25D23/08

Abstract: PURPOSE:To prevent the deformation of an inner casing even when a continuous void space is formed by fixing a substantially U-shape piece to the surface of the inner casing in contact with foamed heat insulating material through bonding agent. CONSTITUTION:A substantially U-shape piece 9, made of a metal or a systhetic resin, is fixed to the surface 8 of an inner casing 2, which is in contact with foamed heat insulating material 5 and readily generating void spaces, through bonding agent 10. The heat insulating box body of a refrigerator is constituted of the inner casing 2, an outer casing 3 and the foamed heat insulating material 5. According to this constitution, the substantially U-shape piece is arranged in the foamed heat insulating material and is fixed rigidly to the inner casing through the bonding agent even when voids are generated in the foamed heat insulating material and the voids form a continuous void space by the long time cooling operation of the refrigerator whereby the deformation of the inner casing may be prevented.