• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    door for a refrigerator, method for producing a door, metal container, method for producing a metal container, method for processing a metal sheet and apparatus for processing a metal sheet a door for a refrigerator is provided. the door for a refrigerator includes an external door produced by pressing and deforming a sheet of metal, the external door including a first surface, from the second to the fifth surface extending from the first surface, and a plurality of flanges extending from the second for the fifth surface, where, when the metal sheet is pressed and deformed, from the first to the fifth surface are integrated with each other, a door lining coupled to the external circumferential surfaces of the plurality of flanges of the external door, and an insulation material arranged in a defined space between the door lining and the external door.
    公开号:BR102013013246B1
    申请号:R102013013246-2
    申请日:2013-05-28
    公开日:2020-09-29
    发明作者:Jinwoo Shim；Youngki KO
    申请人:Lg Electronics Inc；
    IPC主号:
    专利说明:

    [001] The present disclosure relates to a door for a refrigerator and a method for producing it, a metal container and a method for producing the same, and an apparatus and method for processing a metal sheet.
    [002] In general, a sheet of metal can be processed by being pressed using a press mold. However, when the metal sheet is provided to have four corners, if each of the four corners of the press mold has a small radius, the metal sheet may break during processing of the metal sheet.
    [003] In the case where the door to a refrigerator is produced by using a metal sheet according to the related technique, four corners of the metal sheet can be chamfered and then curved vertically to form side portions. Then, the four side portions are welded to connect the four side portions to each other. Thereafter, contours of the four side portions are chamfered, and then portions of the four side portions are folded inward to form flange parts, thereby producing an outer door. According to the processing method described above, since four side portions of the door to the refrigerator are coupled together by welding, if there is a portion that is not welded, a foam agent can leak. Also, once a worker welds the four side portions together, it can take a long time before the door is produced.
    [004] Also, the foaming agent should be inside the outer door produced using the method described above. In the case of the production method according to the state of the art, since four side portions of an external door are welded, an external door can be deformed while a foam agent is expanded after being injected. Thus, an entire surface of the outer door is seated on a foam template to prevent deformation of the outer door when using the foam template.
    [005] However, in the case of the related technique, the foam agent is injected in the state where the entire surface of the external door is seated on the foam template. Thus, if there are contaminants on the outer door, shapes corresponding to the contaminants can be formed on the outer door to cause damage to the outer appearance of the outer door.
    [006] For another example, when the door to the refrigerator is produced, two side surfaces facing a front surface of the external door are integrated with each other, and then, a separate decorative member to form top and bottom surfaces is coupled to the external door. Then, the foam agent is injected into the outer door. However, according to the door production method, an interval between the decorative member and the external door can occur due to foam pressure while the foam agent injected into the door is expanded. As a result, the foaming agent can leak, or a character of beauty can be reduced. ABSTRACT
    [007] Modalities provide a door for a refrigerator and a method for producing the same, a method for processing a sheet of metal, and a metal container and a method for producing the same.
    [008] In one embodiment, a door for a refrigerator includes: an external door produced by pressing and deforming the metal sheet, the external door an external door produced by pressing and deforming a metal sheet, the external door including a first surface , from the second to the fifth surface extending from the first surface, and a plurality of flanges extending from the second to the fifth surface, where, when the metal sheet is pressed and deformed, from the first to the fifth surface are integrated with each other, a door lining coupled to the external circumferential surfaces of the plurality of external door flanges, and an insulating material disposed in a defined space between the door lining and the external door.
    [009] In another embodiment, a method for producing a door includes: pressing and deforming a metal plate to produce an external door whose front surface, both side surfaces, a top surface, and a bottom surface are integrated with each other. the other; removing a mold clamping part that is required to produce the outer door; bend an edge of the outer door to form flanges; and injecting a foam agent into a space formed by the outer door.
    [010] In another additional embodiment, a metal container includes: a bottom part produced by pressing a metal plate into a mold; and a circumferential part produced by bending and deforming a portion of the metal sheet through a die press and a liquid press.
    [011] In yet another additional embodiment, a method for producing a metal container includes: forming a counter-mold through which a space in which a liquid is accommodated comes into contact with a sheet of metal on a mold frame so a press mold is placed or removed; and allows the mold frame to match the metal sheet to press the metal sheet when using the press mold, thereby plastically deforming the metal sheet when using the liquid, the press mold, and the countermold at the same time.
    [012] In another possible additional modality, a method for processing a sheet of metal includes: placing a sheet of metal on a mold having a space in which a liquid is filled; injecting the liquid into the space before a press mold and a countermold move completely to deform the metal sheet; and plastically deforming the metal sheet when pressing the press mold, the countermold, and the liquid.
    [013] In a very additional embodiment, an apparatus for processing a sheet of metal includes: a mold frame having a space in which a liquid is filled; a press mold pressing a sheet of metal located in the mold frame; and a countermold pressing the metal sheet on a side opposite to the metal sheet, wherein the press mold has at least one air passage through which air is supplied between the metal sheet and the press mold is defined in the press mold.
    [014] Details of one or more modalities are presented in the attached figures and in the description below. Other aspects will be visible from the descriptions and figures, and from the claims. BRIEF DESCRIPTION OF THE FIGURES
    [015] Fig. 1 is a view of an apparatus for processing a sheet of metal according to one embodiment.
    [016] Fig. 2 is a view of the apparatus for processing the metal sheet in a state where the metal sheet is pressed by a first press mold.
    [017] Figs. 3 to 5 are seen illustrating a process of molding the metal sheet by a second press mold and a liquid.
    [018] Figs. 6 and 7 are flowcharts of a method for processing the metal sheet according to an embodiment.
    [019] Fig. 8 is a view of a method for processing a sheet of metal according to another embodiment.
    [020] Fig. 9 is a view to compare a processed product produced when using a press mold with a processed product produced when using a plurality of press molds.
    [021] Fig. 10 is a view illustrating a process of molding an external door constituting a door for a refrigerator when using a product processed according to one modality.
    [022] Fig. 11 is a flow chart of a method for producing the refrigerator door according to a modality.
    [023] Fig. 12 is an enlarged perspective view of the door to the refrigerator according to a modality.
    [024] Figs. 13 and 14 are views of a press mold according to another embodiment. DETAILED DESCRIPTION OF THE MODALITIES
    [025] Now, reference will be made in detail to the modalities of this disclosure, whose examples are illustrated in the attached figures.
    [026] In the following detailed description of the preferred modalities, reference is made to the attached figures that form a part of it, and in which they are shown for ways of illustrating specific preferred modalities in which the invention can be put into practice. These modalities are described in sufficient detail to allow those skilled in the art to put the invention into practice, and it is understood that other modalities can be used and that logical chemical, electrical, mechanical and structural changes can be made without departing from the spirit or the scope of the invention. In order to avoid detail not necessary to allow those skilled in the art to practice the invention, the description may omit certain descriptions known to those skilled in the art. The following detailed description is therefore not to be taken on a limited basis.
    [027] Exemplary modalities of the present disclosure will be described below in more detail with reference to the attached figures. It is also noted that similar reference numerals denote similar elements in appreciation of the figures even though the same elements are presented in other figures. In addition, detailed descriptions related to well-known settings or functions will be discarded in order not to unnecessarily obscure the subject matters of this disclosure.
    [028] Also, in the specification, a product produced by processing a sheet of metal using a processing apparatus is referred to as a processed product.
    [029] Fig. 1 is a view of an apparatus for processing a metal sheet according to one embodiment, Fig. 2 is a view of the apparatus for processing the metal sheet in a state where the metal sheet is pressed by a first press mold, and Figs. 3 to 5 are seen illustrating a process of molding the metal sheet by a second press mold and a liquid.
    [030] Referring to Figs. 1 to 5, the processing apparatus 1 according to an embodiment can include a mold frame 10 for processing a sheet of metal 50 in a predetermined format. The mold frame 10 has a space (or groove) 102 having a predetermined shape. Space 102 may vary in shape. Also, the metal sheet 50 can be processed in the same format as that of space 102.
    [031] The processing apparatus 1 can additionally include a first press mold 30 for pressing the metal sheet 50. For example, the first press mold 30 can press the metal sheet 50 while the first press mold 30 moves down from an upper side of the metal sheet 50. Also, the first press mold 30 is placed or removed from space 102.
    [032] The first press mold 30 has at least one air passage 32 through which the air flows. For example, the air passage 32 extends vertically within the first press mold 30. Also, air above the air passage 32 can come in contact with the metal sheet 50 in a state where the first press mold 30 presses metal sheet 50.
    [033] The processing apparatus 1 can additionally include a countermold 20 by pressing the metal sheet 50 and a driving part 22 vertically moving the countermold 20. The countermold 20 and the driving part 22 will be described below .
    [034] The mold frame 10 can be connected to a liquid pressure adjustment unit 40 providing a liquid into space 102. The mold frame 10 has a liquid passage 103 through which the liquid flows. A liquid pressure adjustment unit 40 can deliver the liquid into space 102 or restore the delivered liquid into space 102. Also, the liquid pressure adjustment unit 40 can adjust a liquid pressure (hydraulic pressure) applied within the metal sheet 50 when the metal sheet 50 is processed.
    [035] The mold frame 10 can additionally include a support 106 fixing the metal sheet 50. The support 106 can be separated from the mold frame 10.
    [036] The support 106 includes a fastening part 107 securing one end of the metal sheet 50. Thus, the metal sheet 50 can be pressed and deformed in a state where its end is fixed to a predetermined position.
    [037] Hereinafter, a method for processing the metal sheet 50 using the processing apparatus 1 will be described.
    [038] Figs. 6 and 7 are flowcharts of a method for processing the metal sheet according to an embodiment. Fig. 6 is a flow chart of a method for processing the metal sheet when using a press mold, and Fig. 7 is a flow chart of a method for processing the metal sheet when using a plurality of press molds.
    [039] Referring to Figs. 1 to 6, a sheet of metal 50 having a predetermined size is prepared (S11).
    [040] Then, the metal sheet 50 is arranged in the mold frame 10 (S12) (see Fig. 1). Also, the metal sheet 50 is attached to the mold frame 10 when using the support 106.
    [041] Then, the first press mold 30 moves towards the metal sheet 50 to press the metal sheet 50 (S13) (see Fig. 2). The first press mold (30) ascends (S14). In the current embodiment, a liquid is not injected into the mold frame 10 while the metal sheet 50 is processed first when using the first press mold 30.
    [042] Since there is air above the air passage 32, when the first press mold 30 rises and is thus removed from the processed metal sheet 50, the air existing above the air passage 32 is supplied between the first mold press 30 and metal sheet 50.
    [043] Metal sheet 50 is primarily shaped by operations S11 to S14.
    [044] Then, a second press mold 31 moves towards metal sheet 50 (S15). Also, the second press mold 31 is closely connected to the top surface of the metal sheet 50 which is first molded. Also, the drive part 22 moves to intimately connect the countermold 20 to the bottom part 51 of the metal sheet 50 (see Fig. 3).
    [045] Also, the second press mold 31 and the counter mold 20 descend together to press the metal sheet 50 (see Fig. 4).
    [046] Also, while the second press mold 31 and counter mold 20 descend, a liquid is injected into the mold frame 10 (S16). That is, the liquid discharged from a liquid pressure adjustment unit 40 is filled into space 102 through the passage of liquid 103.
    [047] Then, the metal sheet 50 is deformed by the press of the second press mold 31, the countermould 20, and the liquid (S17).
    [048] The metal sheet 50 is pressed by the second press mold 31 and the counter mold 20 at the same time (see Fig. 1). Simultaneously, the liquid disposed in the vicinity of the bottom part 51 of the metal sheet 50 presses the metal sheet 50 (see Figs. 2 and 3) to bend and deform the metal sheet 50, thereby producing a circumferential part 52 (or referred to as an edge part or side part) of the metal sheet 50.
    [049] Here, an O-ring 21 can be disposed in the counter 20 to prevent liquid from being introduced between the counter 20 and the metal sheet 50. The O-ring 21 can have a closed loop format. Thus, press force of the liquid can be applied inside the metal sheet 50 in an outward direction of the O-ring 21.
    [050] That is, in the current embodiment, the metal sheet 50 is pressed by the counter mold 20 and the second press mold 31 to produce the bottom part 51. Also, the metal sheet 50 is pressed by the second mold 31 and through the liquid at the same time to produce the circumferential part 52 in which a portion, except the bottom part 51, is curved.
    [051] Then, the liquid inside the mold frame 10 is removed (S16). Also, the second press mold 31 rises (S18). Here, since there is air above the air passage 32, when the second press mold 31 rises and then is moved away from the processed metal sheet 50, the air existing above the air passage 32 is supplied between the second press mold 30 and the metal sheet 50.
    [052] Then, finally, the processed product is separated from the mold frame 10 (S19).
    [053] That is, in the specification, the metal sheet 50 can be deformed within the processed product by hydroforming. Substantially, the metal sheet 50 can be deformed within the processed product by a partial hydroforming method (because the liquid pressure is applied in a region external to the O-ring).
    [054] Here, a contact area between the countermold 20 and the metal sheet 50 can be larger than that between the liquid and the metal sheet 50.
    [055] In the current mode, a time point at which the liquid injected into the mold frame 10 is removed, is not limited to it. For example, the liquid can be removed while the second press mold 31 rises, after the second press mold 31 rises completely, while the processed product is separated from the mold frame 10, or after the processed product is completely separated.
    [056] According to the current modality, while the metal sheet 50 is processed, the pressing force of the liquid is not applied to the entire bottom part 51 of the metal sheet 50, but is applied only to the circumferential part or in a portion of the bottom part 51 and the circumferential part (which corresponds to an external region of the O-ring). Thus, when compared to a case where the liquid is applied to an entire surface of the metal sheet 50, the pressing force of the second press mold 31 pressing the metal sheet 50 from an upper side of the metal sheet 50 is relatively low. Thus, the processing apparatus for processing the metal sheet having the same size can be reduced in volume.
    [057] Also, since a portion of the metal sheet 50 is pressed and curved by the liquid to produce the circumferential part, a contour between two circumferential parts adjacent to each other can be minimized in radius.
    [058] Also, while the second press mold 31 is separated from the mold frame 10, since air is supplied between the second press mold 31 and the metal sheet 50 through the air passage 32 of the second mold of press 31, the processed metal sheet 50 can be kept in the shape it is in.
    [059] If the air passage is not defined in the second press mold 31, a thin space between the second press mold 31 and the processed metal sheet 50 may be in a vacuum state (or a state similar to the state of vacuum). Thus, a portion of the bottom part 51 of the processed metal sheet 50 can ascend along the second press mold 31 to deform the bottom part 51.
    [060] Also, since the metal sheet 50 is processed within the bottom part 51 and the four circumferential parts (or side parts) 52 by the processing apparatus 1, it may be unnecessary to weld the four side parts together.
    [061] For another example, referring to Fig. 7, the metal sheet 50 can be processed using a press mold. Here, the first or second press mold can be used selectively according to a use of the processed product.
    [062] First, a sheet of metal 50 having a predetermined size is prepared (S31). Then, the metal sheet 50 is arranged in the mold frame 10 (S32). Also, the metal sheet 50 is attached to the mold frame 10 when using the support 106. Then, the press molds 30 and 31 move towards the metal sheet 50 (S33). Also, the counter-mold 20 is intimately connected towards a lower portion of the metal sheet 50.
    [063] Also, while the press mold 30 and 31 and the counter mold 20 descend, a liquid is injected into the mold frame 10 (S34).
    [064] Then, the metal sheet 50 is deformed by the counter mold press 20, the press molds 30 and 31, and the liquid (S35).
    [065] Then, the liquid inside the mold frame 10 is removed (S36). Also, the press molds 30 and 31 ascend (S37). Here, since there is air above the air passage 32, when the press molds 30 and 31 rise and are thus spaced from the processed metal sheet 50, the air existing above the air passage 32 is supplied between the press molds 30 and 31 and the metal sheet 50.
    [066] Then, finally, the processed product is separated from the mold frame 10 (S38).
    [067] That is, according to the present invention, the plurality of press molds can be used as shown in Fig. 6, or the single press mold can be used as shown in Fig. 7 according to the radius of the contour between the two circumferential parts adjacent to each other of the processed product. When the plurality of press molds is used, the plurality of press molds can have different shapes from each other. That is, the second press mold 31 may have a smaller radius than that of the first press mold 30.
    [068] Fig. 8 is a view of a method for processing the metal sheet according to another embodiment.
    [069] The method for processing the metal sheet in Fig. 8 is the same as that in Fig. 5, except that a liquid presses an entire bottom surface of the metal sheet. Thus, only specific portions of the current modality will be described below.
    [070] Referring to Fig. 8, a second press mold 31 presses a sheet of metal 50 in a state where a countermold 20 is moved away from metal sheet 50. Also, when the second press mold 31 descends completely, the countermould 20 can be removed from the metal sheet 50. Thus, a liquid presses an entire surface of the bottom part 51 of the metal sheet 50.
    [071] According to the current modality, when a processed product has a large corner radius or a small corner radius, metal sheet 50 can be processed by a liquid pressure and a press mold pressure without using the counter mold 20.
    [072] Fig. 9 is a view to compare a processed product produced when using a press mold with a processed product produced when using a plurality of press molds.
    [073] Referring to Fig. 9, in a case where a press mold is used, a processed product includes a processed part 63. On the other hand, in a case where a plurality of press molds are used, a product Processed 61 includes a plurality of processed parts 63 and 64.
    [074] Here, the first processed part 63 can be produced by the first press mold 30. Also, the second processed part 64 can be produced by the second press mold 31. Each of two circumferential parts adjacent to each other from the second part Processed 64 can be less than those two circumferential parts adjacent to each other from the first processed part 63. This is done because the first and second press molds 30 and 31 have different shapes from each other.
    [075] Then, a method for producing a door for a refrigerator using the processed product which is processed by the processing apparatus will be described below.
    [076] Fig. 10 is a view illustrating a process for molding an external door constituting a door for a refrigerator when using a product processed according to one embodiment, Fig. 11 is a flow chart of a method for producing the door for the refrigerator according to an embodiment, and Fig. 12 is an enlarged perspective view of the door to the refrigerator according to an embodiment.
    [077] Referring to Figs. 10 to 12, to produce a door 80 for a refrigerator, an external door 81 (S21) is first produced. Here, the processed product described above 60 is used as an exit door 81.
    [078] The processed product 60 which is processed by the processing apparatus 1 includes a first surface 71, a plurality of circumferential parts 72 to 75 vertically extending the departure to the first surface 71, and the mold fixing part 76 extending from the plurality of circumferential parts 72 to 75. For example, the plurality of circumferential parts 72 to 75 can include four circumferential parts.
    [079] The four circumferential parts include the second to the fifth surface. The first surface 71, from the second to the fifth surface, and the mold holding part 76 are integrated with each other. Also, the first surface and the second to the fifth surface define a space in which a foaming agent is injected.
    [080] When the processed product 60 is used as the outer door 81, the first surface 71 can be referred to as a front surface, the second surface 72 and the third surface 73 facing the second surface 72 can be referred to as side surfaces, a fourth surface 74 can be referred to as a bottom surface, and a fifth surface 75 can be referred to as a top surface.
    [081] Then, the mold clamping part 76 is removed from the outer door 81 (S22). Then, a contour between two circumferential parts adjacent to each other is chamfered (S23). That is, four portions of outer door 81 are chamfered. Also, a portion of the four circumferential parts is curved inward to form a flange 77 (S24). That is, the flange 77 can extend from the four circumferential parts.
    [082] Obviously, although the processed product is processed and then applicable to the external door constituting the door for the refrigerator in the specification, the present disclosure is not limited to that. In the specification, an object using the processed product can be called a metal container. Also, the processed product 60 can be produced as doors for other products in addition to the door for the refrigerator.
    [083] Then, the external port 81 is arranged in a foam template. Here, the foam template can contact a minimum area of outer door 81 to prevent outer door 81 from moving. For example, the foam template can include a first support supporting the bottom surface portion of the outer door 81 and a plurality of second support supporting the side surfaces of the outer door 81.
    [084] In the current mode, since the second surface and the second to the fifth surface of the outer door 81 are integrated with each other, deformation of the outer door 81 can be prevented while the foam agent is injected and expanded. Thus, the contact area between the foam template and the outer door 81 can be minimized. Thus, while the foam agent of the outer door is expanded, the outer door can minimally have an influence on contaminants in the foam template.
    [085] Then, the foam agent is injected into the external port 81 (S25). However, before the foam agent is injected into the outer port 81, a housing 78 can be coupled to prevent the foam agent injected into a space between the flanges 77 adjacent to each other of the outer port 81 from leaking.
    [086] Also, when the injected foam agent is cured, port 80 for the refrigerator is produced completely (S26). The cured foaming agent can serve as an insulating material 83 from port 80 for the refrigerator and be arranged in a space defined by external port 81 and a door liner 82.
    [087] Here, the foaming agent can be injected before an outer circumferential surface of the door liner 82 is coupled to the flange 77 of the outer door 81. Alternatively, the foaming agent can be injected into the space defined by the liner. door 82 and outer door 81 through a hole defined in door lining 82 after door lining 82 is coupled to flange 77.
    [088] Here, the gasket 84 to prevent the cooled air from leaking can be arranged in the door lining 82.
    [089] When the foam agent is injected into the outer door before the outer circumferential surface of the door liner 82 is coupled to the flange 77 of the outer door 81, the outer circumferential surface of the door liner 82 can be coupled to the flange 77 of external port 81 after the foam agent is injected.
    [090] Figs. 13 and 14 are views of a press mold according to another embodiment. Although the first press mold is described as a press mold described below, the press mold can be equally applicable to the second press mold.
    [091] Referring to Fig. 13, a first press mold 30 may include a vertical passage 32 that extends in a vertical direction and a horizontal passage 33 that extends in a horizontal direction. An outlet of the horizontal passage 33 can be arranged on a side surface of the first press mold 30.
    [092] Air can flow successively in the vertical passage 32 and in the horizontal passage 33 and then be supplied into a space between the press mold and the metal sheet.
    [093] Referring to Fig. 14, a first press mold 30 may include a vertical passage 32 that extends in a vertical direction, a horizontal passage 33 that extends in a horizontal direction, and an end passage that extends extends from one end of the horizontal passage 33 towards a corner of a lower portion of a first press mold 30.
    [094] According to the proposed modalities, once the metal plate is pressed and deformed to integrate the first surface and from the second to the fifth surface with each other, assembly and sealing processes of a separate decoration member to form the circumferential part of the outer door may not be necessary. Also, since the surfaces to form the circumferential parts are integrated with each other, torsional strength of the outer door can be enhanced to prevent the outer door from being deformed while the foam agent is injected into the outer door and expanded. In addition, additional reinforcement material to enhance the strength of the external door may not be necessary.
    [095] Additionally, since a separate decoration member is not attached to the external door, an interval between the surfaces may not occur.
    [096] Also, since the metal sheet is processed through the process of hydro-foam formation, a large number of molds may not be required. Also, the mold can be reduced in volume to reduce equipment investment costs. Particularly, when a wide surface such as the door is processed, it can be prevented that the corner portions of the door are broken due to its thin thickness.
    [097] Also, when the metal sheet is deformed, a portion of the metal sheet can be curved and deformed by the mold and liquid press to form the circumferential parts. Thus, since liquid pressure is applied to only the deformed portion of the sheet metal, the press strength and size of the mold can decrease to reduce the cost of mold equipment.
    [098] Although the modalities have been described with reference to a number of illustrative modalities of them, it is understood that other modifications and numerous modalities can be developed by those versed in the technique that will belong to the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and / or arrangements of the subject combination arrangement within the scope of the disclosure, figures and appended claims. In addition to the variations and modifications in the component parts and / or arrangements, alternative uses will also be visible to those skilled in the art.
    权利要求:
    Claims (9)
    [0001]
    1. Door (80) for a refrigerator, the door (80) comprising: an external door (81) produced by pressing and deforming a sheet of metal, the external door (81) comprising a first surface (71), the second up to the fifth surface (72, 73, 74, 75) extending from the first surface (71), and a plurality of flanges (77) extending from the second to the fifth surface (72, 73, 74, 75 ), in which, when the metal sheet is pressed and deformed, the first to the fifth surfaces are integrated with each other; a door lining (82) coupled to the external circumferential surfaces of the plurality of flanges (77) of the external door (81); and an insulating material (83) disposed in a defined space between the door lining (82) and the external door (81), in which the plurality of flanges (77) contains four flanges (77) extending from the circumferential parts of the second to fifth surfaces (72, 73, 74, 75), characterized by the fact that the adjacent end portions of the two flanges (77) adjacent to each other are spaced from each other, thereby the door lining ( 82) is coupled to the outer circumferential surfaces of the four flanges (77) of the outer door (81); a packaging (78) to prevent a foam agent from leaking is disposed between end portions of the two flanges (77) adjacent to each other between the plurality of flanges (77).
    [0002]
    2. Door, according to claim 1, characterized by the fact that the first surface (71) is a front surface, the second surface and the third surface facing the second surface are lateral surfaces, the fourth surface is a surface of bottom, and a fifth surface facing the fourth surface is a top surface.
    [0003]
    3. Door, according to claim 1, characterized by the fact that the second to fifth surfaces (72, 73, 74, 75) are pressed and deformed by a liquid disposed within a mold frame to process the external door ( 81).
    [0004]
    4. Door, according to claim 1, characterized by the fact that a gasket (84) for sealing is arranged in an edge part of the door lining (82).
    [0005]
    5. Method for producing a door, the method characterized by the fact that it comprises: pressing and deforming a metal plate to produce an external door (81) whose front surface, both side surfaces, a top surface, and a surface of bottom are integrated with each other; removing a mold clamping part that is required to produce the outer door (81); curving an edge of the outer door (81) to form flanges (77) extending from the circumferential parts; and installing a packaging (78) that prevents the foam agent from leaking into a space between adjacent end portions of the two flanges (77) adjacent to each other; injecting a foam agent into a space formed by the outer door (81), in which each two adjacent of the end portions of the four flanges (77) are spaced from each other in a circumferential direction, thereby the door lining (82 ) is coupled to the circumferential surfaces of each of the four flanges (77) of the outer door (81).
    [0006]
    6. Method according to claim 5, characterized in that it further comprises coupling a door liner (82) to the external door (81) after the foam agent is injected.
    [0007]
    Method according to claim 6, characterized in that it additionally comprises coupling a gasket (84) to prevent the cooled air from leaking into the door lining.
    [0008]
    8. Method according to claim 5, characterized by the fact that a door liner (82) is coupled to the external door (81) before the foam agent is injected, and the foam agent is injected into a space formed between the outer door (81) and the door lining (82) through a hole in the door lining.
    [0009]
    9. Method, according to claim 5, characterized by the fact that the formation of the flanges (77) comprises: chamfering contour portions between both side surfaces, the top surface, and the bottom surface; bend a portion of each of the surfaces inward.
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    同族专利:
    公开号 | 公开日
    MX370627B|2019-12-18|
    BR102013013246A2|2015-06-23|
    KR102001145B1|2019-10-21|
    AU2013206213B2|2015-09-24|
    EP2674706A2|2013-12-18|
    KR20130139021A|2013-12-20|
    EP2674706B1|2017-12-27|
    JP6013978B2|2016-10-25|
    CN103486805A|2014-01-01|
    AU2013206213A1|2014-01-09|
    MX2013006619A|2014-03-06|
    US9695626B2|2017-07-04|
    US9074405B2|2015-07-07|
    EP2674706B8|2018-02-14|
    US20130328472A1|2013-12-12|
    CN103486805B|2015-09-30|
    JP2013257138A|2013-12-26|
    US20140230337A1|2014-08-21|
    EP2674706A3|2016-03-02|
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    法律状态:
    2015-06-23| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-02-27| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-07-14| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-29| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/05/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    KR10-2012-0062678|2012-06-12|
    KR1020120062678A|KR102001145B1|2012-06-12|2012-06-12|Door for a refrigerator and method for manufacturing a door, metal container and method for manufacturing the same, method for processing a metal sheet, and apparatus for processing a metal sheet|
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