548391 A7 ___ B7 五、發明説明（1 ) 所屬之技術領域 本發明係有關於可開關自如地被設置於電冰箱本體之 前面開口部之箱門構造。 習知技術 習知以來，電冰箱之箱門係由利用薄鋼板製成的箱門 表面部及周側部來形成的外面板、及至少被安裝於該外面 板上下面的合成樹脂製之箱門蓋殼所形成之箱門本體，並 於該箱門本體之內面側上設置了箱門內板的同時，且發泡 塡充於該箱門本體及箱門內板之間的隙縫之隔熱材料所構 成，而前述上下箱門蓋殻係以非結晶性樹脂，也就是丙烯 口卜- 丁二儲-苯乙烯樹脂（以下，稱爲A B S樹脂）所形 成。 發明欲解決之課題 然而，利用上述A B S樹脂所形成之箱門蓋殼由於抗 藥性低劣，藉由與作爲隔熱材料，也就是胺基曱酸乙酯泡 沫之發泡劑所產生氯氟碳化物接觸而惡化，又，由於利用 洗潔劑或酒精於淸掃時，會使此等附著表面而造成同樣的 惡化，藉由根據作爲電冰箱箱門之於使用時的電冰箱內外 溫差、根據外面板或隔熱材料之材質差異所造成之熱收，縮 或外力，容易產生裂紋或裂縫這樣的問題。 又，由於耐光性也不佳，亦會造成容易變色的缺點， 當進行對應於此等之處理方法之時，會造成材料費用變得 本紙張尺度適用中國國家標準（CNS ) A4規格（2川><297公釐） ~ (請先閲讀背面之注意事項再填寫本頁) C·548391 A7 ___ B7 V. Description of the invention (1) Field of the invention The present invention relates to a structure of a door of a box that can be freely opened and closed in a front opening of a refrigerator body. Since the technology is known, the door of a refrigerator is an outer panel formed of a surface part and a peripheral part of a door made of a thin steel plate, and a box made of synthetic resin installed at least on the lower surface of the outer panel. The box door body formed by the door cover shell is provided with a box door inner plate on the inner surface side of the box door body, and foam is filled in the gap between the box door body and the box door inner plate. The upper and lower door cover shells are made of non-crystalline resin, that is, acrylic resin-butadiene-styrene resin (hereinafter referred to as ABS resin). Problems to be Solved by the Invention However, the box door cover formed by using the above-mentioned ABS resin has low chemical resistance, and is used as a heat insulating material, that is, a chlorofluorocarbon produced by a foaming agent of ethyl amino foam. Deterioration due to contact, and the same deterioration caused by the use of cleaning agents or alcohol on the surface of the adhesion, based on the temperature difference between the inside and outside of the refrigerator when it is used as the refrigerator door. Heat shrinkage, shrinkage, or external forces caused by differences in the material of the panel or heat insulation material are prone to problems such as cracks or cracks. In addition, because the light resistance is not good, it also causes the disadvantage of easy discoloration. When the processing methods corresponding to these are performed, the material cost will become the national standard (CNS) A4 standard (2 Sichuan) > < 297 mm) ~ (Please read the notes on the back before filling this page) C ·
、1T 經濟部智慧財產局員工消費合作社印製 548391 A7 B7___ 五、發明説明（2 ) 極高的問題。 本發明係爲考量了上述課題後而被形成者，以提供價 格低廉、且抗藥性、耐氯氟碳化物特性、耐光性優之電冰 箱的箱門構造爲目的。 Μ解決課題之手段 爲了解決上述課題，根據申請專利範圍第1項之發明 的電冰箱的箱門構造，其特徵爲：係可開關自如地被設置 於電冰箱本體之開口部上，並且由外面板及至少被安裝於 該外面板之上下面的箱門蓋殼所形成之箱門本體、於該箱 門本體之內面側上設置了箱門內板的同時，且被塡充於箱 門本體及箱門內板之間的隙縫之胺基甲酸乙酯泡沬隔熱材 料所構成的，並利用聚丙烯等之結晶性樹脂形成前述上下 箱門蓋殻，根據該構造，可以得到價格低廉、且抗藥性、 耐氯氟碳化物特性、耐光性優之電冰箱的箱門構造。 申請專利範圍第2項之發明，其特徵爲：使由箱門蓋 殼朝隔熱材料側突出之肋部爲一體成形的，即使與胺基甲 酸乙酯泡沬之密合力弱之聚丙烯，藉由使突出肋部朝隔熱 材料埋入，提高密合強度且可以得到韌性大之箱門。 申請專利範圍第3項之發明，其特徵爲：使由箱門蓋 殼朝隔熱材料側突出成形的肋部與形成於箱門內板邊緣之 密封墊圈支撐部卡合，而申請專利範圍第4項之發明，其 特徵爲：於肋部上形成卡止部，使由密封墊圈支撐部突出 之突出部卡合於該卡止部上，因爲於隔熱材料內使箱門蓋 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） ----------Ν 裝-- (請先閲讀背面之注意事項再填寫本頁) 訂 線 經濟部智慧財產局員工消費合作社印製 -5- 548391 A7 B7 五、發明説明（3 ) 殻與箱門內板介由肋部卡合在一起，而被埋入固定於胺基 曱酸乙酯泡沬內，因此使彼此之密合力大大地提高。 再者，申請專利範圍第5項之發明，其特徵爲：使箱 門蓋殻內面之隔熱材料側的表面粗度變粗，而申請專利範 圍第6項之發明，其特徵爲：藉由利用火焰處理或皺紋加 工，使箱門蓋殼內側的表面粗度大大地變粗I，因而可以使 與胺基甲酸乙酯泡沬隔熱材料之密合力變得強硬，對扭曲 或彎曲等變形而言，可以用零件少之簡單構造且價格低廉 地製造出強硬的箱門。 發明的實施形態 以下，根據圖面針對本發明之1實施形態加以說明。 第1圖所顯示之電冰箱（1 )係利用幾個被隔熱之隔板（ 3 )區分前面開口部後，而於冰箱內形成複數個獨立的空 間，將各自分別冷卻控制於冷藏室（4 )、或冷凍室（5 )、或蔬果室（6)等既定的溫度帶，並且由形成適合食 品貯藏溫度的貯藏室之隔熱箱本體（2 )、及各自於該隔 熱箱本體之前述每個貯藏室的開口部上所設置之冷藏室箱 門（7 )、或冷凍室箱門（8 )所構成。 前述各個箱門中，冷藏室箱門（7 )雖然爲利用安裝 於前面開口部一側的上下之鉸鏈以樞支該側，而可自由轉 動地被設置著，但是其他的貯藏室箱門係被成形爲拉取式 的。 作爲一個拉取式箱門的例子之蔬果室箱門（9 )，對 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 1·裝.， 1T Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 548391 A7 B7___ 5. Description of the invention (2) Very high problem. The present invention has been made in consideration of the above-mentioned problems, and has as its object to provide a door structure of an electric refrigerator which is inexpensive and has excellent chemical resistance, chlorofluorocarbon resistance, and light resistance. Means of Solving the Problem In order to solve the above-mentioned problem, according to the refrigerator door structure of the first invention of the scope of patent application, it is characterized in that it can be opened and closed on the opening of the refrigerator body and can be opened from the outside. The panel and the box door body formed by the box door cover shell installed at least above and below the outer panel, while the box door inner panel is provided on the inner side of the box door body, and is filled into the box door The urethane foam insulation made of the gap between the body and the inner panel of the door is made of crystalline resin such as polypropylene to form the upper and lower door cover shells. According to this structure, it can obtain a low price. A refrigerator door structure with excellent chemical resistance, chlorofluorocarbon resistance, and light resistance. The invention of the second scope of the patent application is characterized in that the ribs protruding from the cover of the box door toward the heat-insulating material side are integrally formed, even if the polypropylene has weak adhesion with the urethane foam, By embedding the protruding ribs into the heat-insulating material, it is possible to improve the adhesion strength and obtain a box door with high toughness. The invention of claim 3 is characterized in that the ribs protruding from the door cover shell toward the heat insulation material side are engaged with the sealing washer support formed on the edge of the inner panel of the door, and the scope of the patent application is The fourth invention is characterized in that a locking portion is formed on the rib portion, and a protruding portion protruding from the gasket support portion is engaged with the locking portion, because the paper size of the box door cover is made in the heat insulation material. Applicable to China National Standard (CNS) Α4 specification (210X297 mm) ---------- N Packing-(Please read the precautions on the back before filling this page) The staff of the Intellectual Property Bureau of the Ministry of Economy Printed by the cooperative -5- 548391 A7 B7 V. Explanation of the invention (3) The shell and the inner door of the box door are engaged with each other through the ribs, and are embedded and fixed in the amino ethyl acetate foam. The adhesion is greatly improved. Furthermore, the invention claimed in the scope of patent application No. 5 is characterized in that the surface roughness of the heat-insulating material side of the inner surface of the door cover shell is made coarse, and the invention in scope of the patent application No. 6 is characterized by: By using flame treatment or wrinkle processing, the surface roughness of the inside of the door cover shell is greatly roughened I, so that the adhesive force with the urethane foam insulation material can be strengthened, and it can be twisted or bent. In terms of deformation, a strong box door can be manufactured inexpensively with a simple structure and few parts. Embodiment of the Invention Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The refrigerator (1) shown in FIG. 1 uses a plurality of insulated partitions (3) to distinguish the front opening, and forms a plurality of independent spaces in the refrigerator, each of which is cooled and controlled in the refrigerating compartment ( 4), or a freezer compartment (5), or a vegetable and fruit room (6), and a predetermined temperature zone, and the heat insulation box body (2) forming a storage room suitable for the food storage temperature, and each of the heat insulation box body The refrigerator compartment door (7) or the freezer compartment door (8) provided on the opening of each of the aforementioned storage compartments. Among the above-mentioned doors, the refrigerator compartment door (7) is rotatably installed to pivot the side by using an upper and lower hinge mounted on the front opening side, but other storage compartment door systems Is shaped as a pull-out. As an example of a pull-out box door, the vegetable and fruit room box door (9) applies the Chinese National Standard (CNS) A4 specification (210X297 mm) to this paper size (please read the precautions on the back before filling this page) 1 · Installed.
、1T 經濟部智慧財產局員工消費合作杜印製 -6 - 548391 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（4 ) 在隔熱箱本體內所區隔形成之蔬果室（6 )而言，於安裝 在箱門（9 )上之軌道框（1 0 )上置放了收納容器（ 1 1 )，且藉由軌道框（1 1 )，使蔬果室箱門（9 )及 收納容器（1 1 )成爲一體而可自由拉取地設置著。 該蔬果室箱門（9 )係藉由形成箱門本體之外表面的 外面板（1 4 )及被安裝於該外面板（1 4 )之上下面的 箱門蓋殼（1 5 ) ( 1 6 )而形成箱門本體，如沿著第1 圖之A - A線的剖面圖，也就是第2圖、及分解立體圖， 也就是第3圖所示，於該箱門本體之內面設置了箱門內板 (1 7 )的同時，且於外面板（1 4 )、箱門蓋殻（1 5 )(1 6 )及箱門內板（1 7 )之間的隙縫中塡充著隔熱 材料（1 8 )。 於是，前述上下箱門蓋殼（1 5 ) ( 1 6 )係根據利 用結晶性之樹脂，也就是聚丙烯（以下，稱爲P P )射出 成形來加以構成的。 原來，P P之價格低廉的同時，且抗藥性優，具有熱 可塑性又輕又強硬、耐熱性、透明度佳之特性，相對的， 與隔熱材料，也就是胺基甲酸乙酯泡沬之密合力低的同時 ，且於成形時，容易發生延展或彎曲，又因爲就硬度而言 爲軟的，容易根據外力而造成刮痕的情形下，並不適合作 爲電冰箱的外部零件，因此直至目前都沒被採用。 然而，由於近年來之技術開發，使其物性強度向上提 升，於光澤面亦加以改良。 因此，本發明者係爲了使用具有上述況狀的P P於電 (請先閲讀背面之注意事項再填寫本頁) I·裝· 訂 -線- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 548391 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（5 ) 冰箱箱門零件，而就構造面加以檢討改良，因此確定了作 爲產品的可實施構造。以下針對該構造加以說明。 箱門外面板（1 4 )係使閉塞貯藏室的前面開口部之 表面本體部的兩側部朝後方彎折後，再將其端緣朝內方彎 折之情況下而形成箱狀態。 再者，前述外面板（1 4 )之開放式的上下部份，各 自設置了上箱門蓋殼（1 5 )及下箱門蓋殻（1 6 )。 上下箱門蓋殼（15) (16)係各自具有頂面（ 15a)及底面（16a)，而於各個周緣上，使具有嵌 合於前述外面板（1 4 )側端緣的溝部（1 5 c )( 16c)之簷部（15b) (16b)形成著。 箱門內板（1 7 )係形成爲箱門的貯藏室側，於其周 緣上，設置了爲安裝閉塞本體開口部及箱門之間的隙縫之 密封墊圈用的支撐溝（1 7 a )，並使該密封墊圈支撐溝 (1 7 a )之向外延伸的周緣無間隙地卡合支撐於由前述 箱門蓋殻之頂面（1 5 a )或底面（1 6 a )朝下方或上 方延伸之突緣（15d) (16d)上。 於利用此等上下箱門蓋殼（1 5 ) (16)、箱門外 面板（1 4 )及箱門內板（1 7 )四者的結合所形成之內 部空間內，注入胺基甲酸乙酯泡沬隔熱材料（1 8 )之原 液後再發泡，利用將空間內無間隙地被塡充來構成隔熱箱 門（9 ) 〇 於是，於利用P P所形成之上及下箱門蓋殼（1 5 ) (1 6 )內面的隔熱材料側上，幾乎涉及整個寬幅方向地 (請先閲讀背面之注意事項再填寫本頁) I·裝· 訂 線 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -8- 548391 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（6 ) 將肋部（2 0 )被一體成形地突出著。 該肋部（2 0 )係一直延伸突出至相對於前述密封墊 圏支擦溝（1 7 a )的位置附近，利用將肋部（2 0 )的 端緣朝垂直方向彎折後而形成突出片（2 1 )，胺基甲酸 乙酯泡沬塡充發泡後，係使肋部（2 0 )及突出片（2 1 )被埋入於隔熱材料（1 8 )中，而與發泡固化後的隔熱 材料（1 8 )密合一體化後而被固定，根據其密合強度， 使作爲隔熱箱門的韌性大大地變強，而可以使箱門（9 ) 成爲強硬的構造體。 又，如第4圖、及箱門蓋殻（1 6 )的立體圖，也就 是第5圖所示之其他實施形態中，係設置了由密封墊圏支 撐溝（1 7 a )朝隔熱材料（1 8 )側突出之突出栓（ 1 7 b )的同時，且於肋部（2 0 )上貫穿設置了卡止孔 C 2 2 )後，將該卡止孔（2 2 )與突出栓（1 7 b )卡 合後而埋入設置於胺基曱酸乙酯泡沬（1 8 )中。 根據該構造的話，藉由前述的卡合，對於朝第4圖中 之箭頭方向的外力而言，可以發揮很大的防止脫離的效果 ，使作爲箱門構造體之強度變得更大，ί而可以提升各個 零件之密合強度。 再者，如第6圖及第7圖所示之其他實施形態，於從 肋部C 2 0 )朝密封墊圈支撐溝（1 7 a )側的垂直方向 上，直立設置了複數個在越過肋部（2 0 )的高度尺寸之 卡合片（2 3 )，利用使下切成形部（2 3 a )在越過前 述密封墊圏支撐溝（17a)後卡合於其上，而造成卡合 (請先閲讀背面之注意事項再填寫本頁) 裝-, 1T Consumption Cooperation of Employees of Intellectual Property Bureau of the Ministry of Economic Affairs, Du Yin-6-548391 A7 B7 Printed by Consumption Cooperatives of Employees of the Intellectual Property Bureau, Ministry of Economic Affairs 6) As far as the storage container (1 1) is placed on the track frame (1 0) installed on the box door (9), and the fruit and vegetable room box door (9) is made by the track frame (1 1) The storage container (1 1) is integrated with the storage container (1 1) and can be freely pulled out. The vegetable and fruit room box door (9) is formed by an outer panel (1 4) forming an outer surface of the box door body and a box door cover shell (1 5) (1) installed above and below the outer panel (1 4). 6) To form the box door body, as shown in the cross-sectional view taken along line A-A in FIG. 1, that is, FIG. 2, and an exploded perspective view, that is, shown in FIG. 3, disposed on the inner surface of the box door body. While inside the door inner panel (1 7), the gap between the outer panel (1 4), the door cover shell (1 5) (1 6) and the door inner panel (1 7) is filled. Insulation (1 8). Therefore, the upper and lower case door covers (1 5) (16) are formed by injection molding using a crystalline resin, that is, polypropylene (hereinafter, referred to as P P). It turns out that PP is cheap and has good resistance. It has the characteristics of light thermoplasticity, lightness and toughness, heat resistance, and transparency. In contrast, it has low adhesion to heat insulation materials, that is, urethane foam At the same time, in the case of forming, it is easy to stretch or bend, and because it is soft in terms of hardness and easily scratched by external forces, it is not suitable as an external part of a refrigerator, so it has not been used until now. use. However, due to technological developments in recent years, its physical strength has been increased and its gloss surface has also been improved. Therefore, the present inventor is in order to use PP in electricity with the above conditions (please read the precautions on the back before filling out this page) I. Binding · Binding-This paper size applies the Chinese National Standard (CNS) A4 specification ( 210X297 mm) 548391 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of invention (5) Refrigerator box door parts, and review and improvement of the structural surface, so as to determine the implementable structure as a product. This structure is explained below. The door outer panel (1 4) is formed into a box state by bending both sides of the surface body portion of the front opening portion of the closed storage room toward the rear, and then bending the end edges thereof inward. Furthermore, the open upper and lower parts of the outer panel (1 4) are each provided with an upper door cover shell (1 5) and a lower door cover shell (1 6). The upper and lower door cover shells (15) and (16) each have a top surface (15a) and a bottom surface (16a), and a groove portion (1) fitted to the side edge of the outer panel (1 4) is provided on each peripheral edge. 5 c) (16c) The eaves (15b) (16b) are formed. The door inner panel (1 7) is formed as the storage room side of the box door, and a support groove (1 7 a) for installing a sealing gasket for closing the gap between the body opening and the box door is provided on the periphery of the box door. And make the peripheral edge of the sealing washer support groove (1 7 a) extending outward to engage and support without gap on the top surface (1 5 a) or bottom surface (1 6 a) of the box door cover shell downward or On the raised flange (15d) (16d). Into the internal space formed by the combination of the upper and lower door cover shells (1 5) (16), the door outer panel (1 4), and the door inner panel (1 7), an urethane is injected. The raw solution of foam insulation material (18) is foamed, and the heat insulation box door (9) is formed by filling the space without gaps. Therefore, the upper and lower box door covers formed by PP are used. The shell (1 5) (1 6) on the inner side of the heat-insulating material covers almost the entire width (please read the precautions on the back before filling this page) I. Binding and binding This paper size is applicable to China Standard (CNS) A4 specification (210X297 mm) -8- 548391 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (6) The ribs (20) are integrally formed to protrude. The rib portion (20) is extended and protruded to a position near the position relative to the rubbing groove (17a) of the aforementioned gasket, and the end edge of the rib portion (20) is bent to form a protrusion after being bent vertically. Sheet (2 1), after the urethane foam is filled and foamed, the ribs (2 0) and the protruding sheet (2 1) are buried in the heat-insulating material (1 8), The heat-insulating material (18) after curing is tightly integrated and fixed, and the toughness of the heat-insulating box door is greatly enhanced according to its adhesion strength, so that the box door (9) can be made tough. Construct. In addition, as shown in FIG. 4 and the perspective view of the door cover shell (1 6), that is, in another embodiment shown in FIG. 5, a support groove (1 7 a) is provided toward the heat insulating material by a gasket 圏. (1 8) while the protruding bolt (1 7 b) protruding from the side, and a locking hole C 2 2 is provided through the rib (20), the locking hole (2 2) and the protruding bolt (1 7 b) After being engaged, it is embedded in the ethyl amino sulfonate foam (1 8). According to this structure, by the aforementioned engagement, the external force in the direction of the arrow in FIG. 4 can exert a great effect of preventing the detachment, and the strength of the box door structure becomes greater. And can improve the adhesion strength of each part. In addition, as shown in FIG. 6 and FIG. 7, in a vertical direction from the rib portion C 2 0) to the gasket support groove (17 a) side, a plurality of over the ribs are provided upright. The engaging piece (2 3) of the height dimension of the part (20) is made to engage with the undercut forming part (2a) after passing over the aforementioned gasket 圏 support groove (17a), thereby causing the engagement. (Please read the notes on the back before filling out this page)
，1T 線 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X 297公釐） -9 - 548391 A7 B7 五、發明説明（7 ) 片（2 3 )阻止了從箱門蓋殻（1 5 ) ( 1 6 )之箱門外 面板C 1 4 )或箱門內板（1 7 )朝箭頭所示的外方向移 動的作用，藉由隔熱材料（1 8 )的塡充可以更進一步地 得到強硬的密合力。 第8圖係顯示本發明之其他實施例的箱門蓋殻之立體 圖，上下箱門蓋殼（1 5 ) ( 1 6 )之內面側表面上都施 予火焰處理（2 4 )。 該火焰處理（2 4 )係採用城市媒氣或丙烷氣等之氧 化火，利用1 0 0 °C左右之高溫氣體，將箱門蓋殻（1 5 )(1 6 )內面進行瞬間烘烤，藉由該處理，使形成箱門 蓋殼（15)(16)之PP表面被氧化，而造成表面張 力變大而提升濕潤性，又，利用使表面凹凸不平而粗糙化 ，可以使接著面積變大而增大與胺基曱酸乙酯泡沬隔熱材 料（1 8 )之密合力。 又，雖然未圖不，但是即使於箱門蓋殼之內側表上施 予皺紋加工，亦可以增加表面積，與上述同樣地，可以使 與隔熱材料之密合力變大。 又，若於箱門蓋殼之外表面上施加前述皺紋加工的話 ，可以提升別出心裁的效果的同時，且即使於箱門蓋殼表 面上，發生了些許的彎曲或龜裂，於外觀上，亦可以達到 使其不顯眼的效果。 發明之效果 如以上說明般地，根據該發明之電冰箱的隔熱箱門構 本紙張尺度適用中國國家標準（CNS ) Α4規格（21〇X297公釐） 澤-- (請先閲讀背面之注意事項再填寫本頁) 、τ 經濟部智慧財產局員工消費合作社印製The paper size of 1T line is applicable to Chinese National Standard (CNS) A4 specification (210X 297 mm) -9-548391 A7 B7 V. Description of the invention (7) Pieces (2 3) prevent from the door cover shell (1 5) (1 6) The door outer panel C 1 4) or the door inner panel (1 7) moves in the outer direction indicated by the arrow, and can be further strengthened by the filling of the heat insulation material (1 8). Of adhesion. Fig. 8 is a perspective view showing a box door cover shell according to another embodiment of the present invention, and flame treatment is applied to the inner side surfaces of the upper and lower door door shells (1 5) (16). The flame treatment (2 4) uses an oxidizing fire such as a city medium gas or propane gas, and uses a high-temperature gas of about 100 ° C to instantly bake the inner surface of the door cover (15) (1 6). With this treatment, the surface of the PP forming the door cover shell (15) (16) is oxidized, which causes the surface tension to increase and improve the wettability. Furthermore, by making the surface uneven, the surface is roughened, which can make the bonding area It becomes larger to increase the adhesive force with the ethyl amino foam insulation material (18). Also, although not shown, even if wrinkle processing is performed on the inner surface of the door cover, the surface area can be increased, and the adhesive force with the heat insulating material can be increased in the same manner as described above. In addition, if the aforementioned wrinkle processing is applied to the outer surface of the door cover shell, the effect of ingenuity can be enhanced, and even if a slight bend or crack occurs on the surface of the door cover shell, in appearance, It can achieve the effect of making it inconspicuous. Effect of the Invention As explained above, the paper size of the heat-insulating box door of the refrigerator according to the invention applies the Chinese National Standard (CNS) A4 specification (21 × 297 mm) Ze-(Please read the note on the back first Please fill in this page for matters), τ Printed by the Consumer Cooperatives of Intellectual Property Bureau, Ministry of Economic Affairs
-10- 548391 A7 _B7 五、發明説明（8 ) 造的g舌，利用於箱門蓋殻上使用聚丙烯，可以得到價格低 廉、且抗藥性、耐氯氟碳化物特性、耐光性優之電冰箱之 箱門構造的同時，且利用與箱門蓋體一體成形之突出肋部 朝隔熱材料埋入而成一體化，即使與胺基甲酸乙酯泡沫的 密合力弱之聚丙烯，亦可以提升密合強度而得到硬度大之 箱門。 又，藉由突出栓或卡合片，使箱門蓋殼之肋部與箱門 內板卡合、或藉由利用火焰處理或皺紋加工，使箱門蓋殻 內面側之表面積變大，或表面粗度變粗，可以進一步地使 與胺基甲酸乙酯泡沬隔熱材料之密合力變大，即使對於扭 曲或彎曲等變形而言，可以用零件少之簡單構造且價格低 廉地製造出強度變大之箱門。 明 說 單 簡 面 圖 圖 立 的 整 之 箱 冰 電 之 明 發 本 爲 係 圖 1 第 第圖 面 剖 之 明 發 本 示 顯 係 圖 縱 的 HJ P 箱 箱 冰 電 之 態 形 施 經濟部智慧財產局員工消費合作社印製 箱 箱W 冰丨 電 之 圖 2發 第本 一不W。 顯顯圖 係係面 圖圖剖 3 4 份 第第部 要 主 其 之 明 圖 ΜΉΜ 0J P— 施 的 «Γ 。 箱 圖 箱 體冰 立電 解之 分態 之形 立 □ 缺 的 份 咅 - 之 殼 蓋 門 箱 之 中 圖 4 第 示 顯 係 圖 5 第 的 SJ WT 箱 箱 冰 電 之 態 形 施 實 1 另 之 明 發 本 示 顯 c 係圖 圖面 6 剖 第部 要 主 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 548391 A7 B7 五、發明説明（9 ) 第7圖係顯示第6圖中之箱門蓋殼之一部份的缺口立 體圖。 第8圖係顯示本發明之另一實施形態之箱門蓋殼的剖 面圖。 符號說明 2 隔熱箱本體 4 冷藏室 6 蔬果室 9 蔬果室箱門 14 箱門外面板 15 上箱門蓋殼 15a 頂面 16 下箱門蓋殻 16a 底面 1 5 b、1 6 b 簷部 1 5 c、1 6 c 溝 15d、16d 突緣 17 箱門內板 17a 密封墊圈支撐溝 17b 突出栓 18 胺基甲酸乙酯泡沬 2 0 肋部 2 1 突出片 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) •裝· -線 經濟部智慧財產局員工消費合作社印製 -12- 548391 A7 B7 五、發明説明（10 ) 2 2 卡止孔 2 3 卡合片 23a 下切成形部 24 火焰處理部 (請先閲讀背面之注意事項再填寫本頁) -裝· 訂 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -13--10- 548391 A7 _B7 V. Description of the invention (8) The tongue made of G can be used on the door cover shell to use polypropylene, which can obtain low-cost, drug-resistant, chlorofluorocarbon-resistant, and light-resistant electricity. The refrigerator door structure is integrated, and the protruding ribs that are integrally formed with the door cover are embedded into the heat insulation material and integrated. Even polypropylene with weak adhesion to urethane foam can be used. Improve the adhesion strength to obtain a box door with high hardness. In addition, the ribs of the door cover shell are engaged with the door inner panel by protruding bolts or engaging pieces, or the surface area of the inner surface side of the door cover shell is increased by using flame treatment or wrinkle processing. Or the surface roughness becomes thicker, which can further increase the adhesive force with the urethane foam insulation material. Even for deformation such as twisting or bending, it can be manufactured with a simple structure with few parts and low cost. Out of the box door with increased strength. It is stated that the single box diagram of the entire box ice electricity is shown in Figure 1. The first section of the first figure shows the HJ P box box ice electricity state of the Ministry of Economic Affairs intellectual property Bureau employee consumer cooperatives printed boxes and boxes of electricity and ice. The display map is a diagram of the system, and there are 34 copies of the first part. The main picture is ΜΓΜ 0J P—Shi's «Γ. Box diagram box body ice standing electrolyzed in the form of separation □ The missing part of the shell cover door box Figure 4 The first display is shown in Figure 5 The SJ WT box box ice electricity state implementation 1 Another Mingfa's display C is shown in Figure 6 of the drawing. The main part of the paper size is applicable to the Chinese National Standard (CNS) A4 (210X297 mm) -11-548391 A7 B7 5. Description of the invention (9) Figure 7 A cutaway perspective view showing a part of the case door cover in FIG. 6. Fig. 8 is a cross-sectional view showing a case door cover shell according to another embodiment of the present invention. DESCRIPTION OF SYMBOLS 2 Insulation box main body 4 Refrigerator compartment 6 Fruit and vegetable room 9 Fruit and vegetable room door 14 Exterior door panel 15 Upper door cover 15a Top surface 16 Lower door cover 16a Bottom 1 5 b, 1 6 b Eaves 1 5 c, 1 6 c Groove 15d, 16d Raised flange 17 Box door inner panel 17a Seal washer support groove 17b Protruded bolt 18 Urethane foam 2 0 Rib 2 1 Protruded sheet This paper applies the Chinese national standard (CNS) A4 specifications (210X297 mm) (Please read the precautions on the back before filling out this page) • Equipment ·-Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-12- 548391 A7 B7 V. Description of the invention (10) 2 2 Locking hole 2 3 Engaging piece 23a Undercut forming section 24 Flame treatment section (Please read the precautions on the back before filling this page)-Binding and ordering Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economy This paper is suitable for China National Standard (CNS) A4 Specification (210X297 mm) -13-