Refrigerator

Abstract

The utility model relates to a refrigerator, which is characterized by comprising a refrigerator body, a refrigerator cover and a refrigerator cover, a door for opening and closing the storage space; a hinge including a hinge plate mounted to the box body, and a first pin and a second pin protruding from the hinge plate and connected to the door and having the same diameter; and a guide groove provided in the door, the first pin and the second pin both being inserted into the guide groove, the guide groove guiding movement of the first pin and the second pin when the door is rotated; the guide groove is formed by connecting a plurality of paths extending in different extending directions in series; when the door rotates, the first pin and the second pin move in different paths among the plurality of paths, so that the separation distance from the wall can be minimized.

Description

Technical Field

[0001] This utility model relates to a refrigerator. Background Technology

[0002] Generally, a refrigerator is a household appliance that can store food at low temperatures in the storage space inside the refrigerator door. To this end, the refrigerator is configured to use cold air generated by heat exchange with the refrigerant circulating in the refrigeration cycle to cool the inside of the storage space, thereby preserving the stored food in the best possible condition.

[0003] In recent years, with changes in dietary habits and the trend towards higher-end products, refrigerators have gradually become larger and more multifunctional, and various structures with user convenience in mind are constantly emerging.

[0004] In recent years, in particular, refrigerators have been designed to be embedded in walls or have configurations that coordinate with other furniture or appliances. In this case, the refrigerator needs to be kept at a specified distance from adjacent walls, furniture, or appliances to avoid interference between the neighboring walls, furniture, or appliances and the corners of the rotating door.

[0005] However, this separation not only creates unnecessary space when configuring the refrigerator, but also causes aesthetic problems.

[0006] To address this issue, refrigerators with hinges featuring multi-link structures are being developed.

[0007] However, refrigerators with multi-link structures are not only complex in design but also expensive. Furthermore, the characteristics of the multi-link mechanism pose a safety hazard, such as the possibility of a user's body becoming trapped between the links. Utility Model Content

[0008] The purpose of this utility model embodiment is to provide a refrigerator that prevents the door from interfering with the wall where the refrigerator is installed when it rotates, thereby minimizing the distance between the refrigerator and the wall.

[0009] The purpose of this utility model embodiment is to provide a refrigerator in which two pins move along a guide groove when the door rotates, so as to make the door rotation smooth.

[0010] The purpose of this utility model embodiment is to provide a refrigerator in which the rotation of the door is not interfered with by the introduction and removal of the refrigerator wall and refrigerator drawers.

[0011] The purpose of this utility model embodiment is to provide a refrigerator that reduces the wear of the guide component and hinge pin during the opening and closing process and reduces friction noise.

[0012] The refrigerator of this utility model embodiment may include: a cabinet forming a storage space; a door for opening and closing the storage space; a hinge including a hinge plate installed on the cabinet and a first pin and a second pin protruding from the hinge plate and connected to the door; and a guide groove disposed in the door, wherein the first pin and the second pin are both inserted into the guide groove, and the guide groove guides the movement of the first pin and the second pin when the door rotates; the guide groove may be formed by connecting a plurality of paths extending in different directions in series; when the door rotates, the first pin and the second pin may move along different paths among the plurality of paths.

[0013] In the closed, stopped state of the door, both the first pin and the second pin can be located in the first path of the plurality of paths.

[0014] In the closed, stopped state of the door, the first pin may be located at the first path, and the second pin may be located at the boundary between the first path and the second path connected to the first path.

[0015] The second pin can enter the second path at the same time the door is opened.

[0016] The distance between the centers of the first pin and the second pin can be the same as the distance between the two ends of the first path.

[0017] The first pin and the second pin can be configured to be spaced apart from each other forward and sideways, and the extension line connecting the centers of the first pin and the second pin can be in the same direction as the extension line connecting the two ends of the first path.

[0018] A guide member can be inserted into the door, and the guide groove can be opened on one side of the guide member and exposed to the outside of the door.

[0019] The guide member may include: a pair of side portions forming two sides of the guide member and spaced apart from each other; a first connecting portion connecting one end of the side portions; and a second connecting portion connecting the other end of the side portions; the pair of side portions may form a plurality of the paths while being spaced apart by a distance equivalent to the diameter of the first pin and the second pin; the guide groove may be formed by the side portions, the first connecting portion and the second connecting portion.

[0020] An arc may be formed between paths connecting adjacent paths in a plurality of said paths, the arc having a radius smaller than the diameter of the first pin and the second pin.

[0021] The arc portion can be formed in multiples, and each arc portion has a different curvature from the others.

[0022] The width of the plurality of paths may correspond to the diameter of the first pin and the second pin, and the first pin and the second pin may remain in contact with the paths during movement.

[0023] The plurality of paths can be defined by a plurality of arcs, the plurality of arcs being centered at the point where vertical lines extending from both ends of each path through the guide groove intersect each other.

[0024] The plurality of said paths may include: a first path, in which the first pin and the second pin are located at both ends of the first path when the door is closed; a second path extending rearward and laterally from the end of the first path; a third path extending rearward and laterally from the end of the second path; a fourth path extending forward and laterally from the end of the third path; and a fifth path extending forward and laterally from the end of the fourth path, located at the position closest to the side of the door, in which the second pin is located in the fifth path when the door is fully open.

[0025] The center of the arc forming the first path to the fifth path can be located inside the door.

[0026] The first center of the arc forming the first path can be located at the corner formed by the front and side of the door, and is located closest to the side of the door among a plurality of centers.

[0027] The second center of the arc forming the second path can be configured to be closer to the front and side of the door than the first center of the arc forming the first path.

[0028] The second center of the arc forming the second path, the third center of the arc forming the third path, the fourth center of the arc forming the fourth path, and the fifth center of the arc forming the fifth path can be configured to be sequentially located away from the front and side of the door.

[0029] A first clearance portion that is more recessed than the position of the first pin can be formed at one end of the guide groove when the door is closed, and a second clearance portion that is more recessed than the position of the second pin can be formed at the other end of the guide groove when the door is opened to its maximum position.

[0030] An access hole for a power supply line can be opened between the front of the door and the guide groove, and at least a portion of the access hole can be disposed in a recessed area between one end and the other end of the guide groove.

[0031] An ice maker or distributor may be installed in the door, and a water supply pipe to the ice maker or distributor may enter or exit through the inlet.

[0032] The refrigerator of this utility model embodiment has the following effects.

[0033] According to this embodiment, when the door rotates, the hinge pin moves along the guide groove, allowing the door to rotate while its rotation center moves. This provides the advantage of minimizing the distance between the refrigerator and the wall by minimizing the outward protrusion of the side ends and corners of the door during the rotational action used to open and close the door.

[0034] Furthermore, the multiple paths formed by the guide groove that guides the movement of the hinge pin are formed by connecting arcs with different centers in series, thereby providing the advantage of smooth movement of the hinge pin when the door is opened.

[0035] Furthermore, the first and second pins constituting the hinge move along a plurality of paths extending in different directions from each other in the guide groove, particularly during the rotation of the door, when the first and second pins are on different paths. Therefore, the door ensures stable opening and closing without slipping or twisting during rotation.

[0036] Furthermore, by the shape of the plurality of paths formed in the guide groove, the door can minimize the protrusion of the corner portions when rotating, and can also minimize the inward protrusion when opened to the maximum extent. This not only prevents interference with the wall, but also prevents interference with adjacent doors of the refrigerator and introduced storage components.

[0037] Furthermore, the hinge pin includes a tube and a pin body that rotate relative to each other, and a coating is provided between the tube and the pin body, which can reduce the vibration that occurs during the opening and closing of the door and prevent noise caused by direct friction between the tube and the pin body.

[0038] In addition, since a coating is provided on the outside of the tube, it has the advantage of preventing direct friction between the pin and the guide member, and making the relative movement of the coating and the guide member smooth. Attached Figure Description

[0039] Figure 1 This is a front view of a refrigerator equipped with the first embodiment of this utility model.

[0040] Figure 2 This is a front view of the refrigerator with the door open.

[0041] Figure 3 This is a partial perspective view showing the installation state of the first hinge of the refrigerator.

[0042] Figure 4 This is an exploded perspective view of the first hinge and the guide member.

[0043] Figure 5 This is a partial perspective view showing the installation state of the second hinge of the refrigerator.

[0044] Figure 6 This is an exploded perspective view of the second hinge and the guide member.

[0045] Figure 7 This is a partial perspective view showing the installation state of the second hinge when the door is open.

[0046] Figure 8 This is a partial perspective view showing the installation state of the third hinge of the refrigerator.

[0047] Figure 9 This is an exploded perspective view of the third hinge and the guiding member.

[0048] Figure 10 This is a top view showing the configuration of the path that forms the guide groove of the guide member.

[0049] Figure 11 This is a perspective view of the guide component.

[0050] Figures 12 to 18 It is a diagram showing the movement of the hinge pins, which changes according to the opening angle of the door.

[0051] Figure 19 This is a diagram showing the position of the hinge pin when the door is closed.

[0052] Figure 20 This is a diagram showing the position of the hinge pin when the door is fully opened.

[0053] Figure 21 This is a diagram showing the interval formed by the door and its neighbors when the door is opened and closed.

[0054] Figure 22 This is a diagram showing the spacing between the door and the wall and storage components when the door is opened to its maximum extent.

[0055] Figure 23 This is a front view of the refrigerator according to the second embodiment of this utility model.

[0056] Figure 24 This is a diagram showing the structure of the hinge pin and guide groove when the refrigerator door is closed.

[0057] Figure 25 This diagram shows the structure of the hinge pin and guide groove in the closed state of the refrigerator door according to the third embodiment of this utility model.

[0058] Figure 26 This is an exploded perspective view of the refrigerator door according to the fourth embodiment of this utility model.

[0059] Figure 27 This is a partial perspective view showing the installation state of the hinges when the door is closed.

[0060] Figure 28 This is a diagram showing the structure of the hinge pin and guide groove when the door is closed.

[0061] Figure 29 This is a front view of the refrigerator according to the fifth embodiment of this utility model.

[0062] Figure 30 This is a front view of the refrigerator with the door open.

[0063] Figure 31 This is a perspective view of the refrigerator according to the sixth embodiment of this utility model.

[0064] Figure 32 This is a front view of the refrigerator with the door open.

[0065] Figure 33 This is a perspective view of the hinge pin according to the seventh embodiment of this utility model.

[0066] Figure 34 (A) is a perspective view of the pin body in this embodiment.

[0067] Figure 34 (B) is a perspective view showing the state in which the pin body in this embodiment is provided with the first coating.

[0068] Figure 35 (A) is a perspective view of the tube used in conjunction with the pin body in this embodiment.

[0069] Figure 35 (B) is a diagram showing the state in which the tube in this embodiment is provided with a second coating.

[0070] Figure 36 This is a diagram illustrating the assembly process of the hinge pin in this embodiment.

[0071] Figure 37 It is along Figure 33 A sectional view cut along line 37-37.

[0072] Figure 38 yes Figure 37 An enlarged view of part A.

[0073] Figure 39 (A) is Figure 38 An enlarged view of part B. Figure 39 (B) is a cross-sectional view based on the first pin of the deformed column.

[0074] Figure 40This is a diagram showing the configuration of the guide groove and hinge pin according to the eighth embodiment of the present invention.

[0075] Figure 41 It is a diagram showing the relationship between the first path and the second path of the guide groove and the hinge pin.

[0076] Figure 42 This is a diagram showing the guide groove of the first embodiment and the guide groove of the eighth embodiment of the present invention overlapping and comparing each other.

[0077] Figure 43 Figures (a) to (d) are diagrams showing the movement of the hinge pins as the door opens at different angles. Detailed Implementation

[0078] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments that give the idea of ​​the present invention. Other advanced inventions or other embodiments included within the scope of the present invention can be easily proposed by adding, changing, or deleting other constituent elements.

[0079] Before proceeding with the explanation, let's define the direction. In the embodiments of this utility model, the direction can be... Figure 1 , Figure 2 The direction the front of the door faces, as seen in the diagram, can be defined as "front." The direction towards the refrigerator body, based on the front of the door, can be defined as "rear." The direction towards the floor where the refrigerator is located can be defined as "downward," and the direction away from the floor can be defined as "upward." Furthermore, when describing undefined directions, the directions can be defined and explained based on the accompanying drawings.

[0080] Figure 1 This is a front view of a refrigerator equipped with the first embodiment of this utility model. Figure 2 This is a front view of the refrigerator with the door open.

[0081] As shown in the figure, the overall appearance of the refrigerator 1 in this embodiment of the present invention can be formed by a cabinet 10 that forms a storage space with a front opening and a door 20 that opens and closes the storage space.

[0082] Furthermore, the refrigerator 1 can be installed to harmonize with the furniture or walls of the interior space. For example, such as... Figure 1 As shown, the refrigerator 1 can be installed in an indoor space such as a kitchen, and can be configured harmoniously adjacent to furniture or wall O. That is, the furniture or wall O can provide space corresponding to the size of the refrigerator 1, and the refrigerator 1 is housed in that space, or it can be configured as a built-in type. Of course, in addition to furniture or wall O, the refrigerator 1 can also be configured as a plurality of refrigerators arranged continuously or arranged continuously with other home appliances.

[0083] In the configuration structure of the refrigerator 1 described above, the front of the refrigerator 1, that is, the front of the door 20, may be very close to the furniture or wall O, and may be located on the same or close plane to have a sense of unity.

[0084] To provide a more detailed description of the structure of the refrigerator 1, the cabinet 10 can form a storage space divided into upper and lower sections. As an example, the cabinet 10 can be divided into upper and lower sections by a divider 13, forming an upper storage space 11 above the divider 13 and a lower storage space 12 below the divider 13.

[0085] As an example, the upper storage space 11 can be used as a refrigerator compartment, and the lower storage space 12 can be used as a freezer compartment. Therefore, the upper storage space 11 can be referred to as the refrigerator compartment, and the lower storage space 12 as the freezer compartment.

[0086] Of course, this invention can be applied to all types of refrigerators with doors that open and close the storage space by rotating, regardless of the type of refrigerator. In this embodiment, for ease of explanation and understanding, the refrigerator compartment is located above the freezer compartment as a reference.

[0087] On the other hand, a plurality of storage components 111 and 121, such as shelves and drawers, can be provided in the upper storage space 11 and the lower storage space 12. Furthermore, when the door 20 is open, the storage components 111 and 121 can be introduced or withdrawn.

[0088] The door 20 may include an upper door 21 and a lower door 22 for opening and closing the upper storage space 11 and the lower storage space 12, respectively. The upper door 21 may be rotatably mounted on the housing 10 and the upper storage space 11 may be opened and closed by rotation.

[0089] The upper parts 21 can form a pair on the left and right sides, and each can be opened and closed by independent rotation of the upper storage space 11. Furthermore, a first hinge 31 and a second hinge 32 can be provided at the upper and lower ends of the pair of upper parts 21 located on the left and right sides. The upper parts 21 can be rotatably mounted to the housing 10 using the first hinge 31 and the second hinge 32.

[0090] The lower section 22 can be rotatably installed on the housing 10 and can open and close the lower storage space 12. A pair of lower sections 22 can be provided on the left and right sides, and each can be opened and closed independently by rotating.

[0091] The lower part 22 may be provided with a second hinge 32 and a third hinge 33 at its upper and lower ends. The lower part 22 can be rotatably mounted to the housing 10 using the second hinge 32 and the second hinge 33.

[0092] The mounting structure of hinges 31, 32, and 33 will be described in more detail below with reference to the accompanying drawings.

[0093] Figure 3 This is a partial perspective view showing the installation state of the first hinge of the refrigerator. Figure 4 This is an exploded perspective view of the first hinge and the guide member.

[0094] As shown in the figure, the first hinge 31 can connect the upper part of the housing 10 and the upper part of the upper part 21. The first hinge 31 can be installed such that one side is fixedly mounted on the top surface of the housing 10, while the other side moves along the guide groove 400 formed in the upper part 21.

[0095] The first hinge 31 may include a hinge plate 310 and a hinge pin 313. The hinge plate 310 may be referred to as the first hinge plate or the upper hinge plate. And the hinge pin 313 may be referred to as the first hinge pin or the upper hinge pin.

[0096] The hinge plate 310 may be formed of a plate-shaped metal material and may protrude forward from the top surface of the housing 10 and extend to the hinge mounting portion 211 of the upper part 21. As an example, the hinge plate 310 may include: a fixing portion 311, fixed to the housing 10; and an extension portion 312, extending forward from the fixing portion 311, wherein the hinge pin 313 is mounted on the extension portion 312.

[0097] A fixing hole 311a is formed in the fixing part 311 for the fixing protrusion 101 of the housing 10 to pass through. Furthermore, a fixing rod 314 for constraining the fixing protrusion 101 is provided in the fixing part 311. The fixing rod 314 is rotatably mounted to the fixing part 311. The hinge plate 310 can be fixed to the housing 10 by the combination of the fixing rod 314 and the fixing protrusion 101. Alternatively, it can be further fixed to the housing 10 by fastening a fastening member such as a bolt to the fixing part 311.

[0098] The extension 312 can protrude forward through the front of the housing 10 and extend inside the hinge mounting portion 211 formed in the upper part 21. The extension 312 can extend at least to a position overlapping the guide groove 400. Furthermore, a hinge pin 313 can be installed on the extension 312.

[0099] The hinge pin 313 can be installed through the hinge plate 310. As an example, the hinge pin 313 can be pressed into the hinge plate 310, and can form an expanding flange 313c during the pressing process to securely fix it to the hinge plate 310.

[0100] A pair of hinge pins 313 may protrude downwards. The pair of hinge pins 313 may be formed in the same shape and sized to be insertable into the guide groove 400 formed in the hinge mounting portion 211. For example, the hinge pin 313 may have a circular cross-section and a diameter corresponding to the inner width of the guide groove 400. Thus, the hinge pin 313 can contact the inner surface of the guide groove 400 when inserted into it.

[0101] The pair of hinge pins 313 may be spaced apart from each other, and the pair of hinge pins 313 may be spaced apart from each other at different distances with reference to the front 21a and side 21b of the upper part 21. As an example, the hinge pin 313 may consist of a first pin 313a and a second pin 313b, wherein the first pin 313a may be configured to be closer to the front of the upper part than the second pin 313b, and further away from a side 21b of the upper part 21 than the second pin 313b.

[0102] Viewed from the front, the pair of hinge pins 313 can be spaced apart from each other in both the front-back and left-right directions. Furthermore, the direction of the extension line L passing through the center of the first pin 313a and the second pin 313b can be inclined with reference to the front face 21a of the upper part 21. Additionally, the direction of the extension line L passing through the center of the first pin 313a and the second pin 313b can be the same as the extension direction of one end of the guide groove 400. That is, the direction of the extension line L passing through the center of the first pin 313a and the second pin 313b can be the same as the direction of the extension line connecting the two ends of the first path 401 described later.

[0103] When the upper part 21 is opened, it can open while simultaneously moving along the extension direction of the extension line L. Thus, the first pin 313a and the second pin 313b can be spaced apart from each other and have an angle corresponding to the angle of the moving direction of the upper part 21 when it begins to open.

[0104] Furthermore, the first pin 313a and the second pin 313b can be spaced apart by a predetermined distance D1. This predetermined distance D1 can be such that the flanges 313c of the first pin 313a and the second pin 313b will not contact each other. Additionally, the predetermined distance D1 can be smaller than the diameter of the hinge pin 313.

[0105] The distance D2 between the centers of the first pin 313a and the second pin 313b can be the same as the length of the first path 401 formed in the guide groove 400. Therefore, the first pin 313a and the second pin 313b can be located at both ends of the first path 401.

[0106] On the other hand, the guide member 40 can be installed on the upper part 21. For example, the guide member 40 can be provided on the hinge mounting portion 211. The hinge mounting portion 211 can be recessed at the upper end of the upper part 21 to form a step. Furthermore, the bottom surface of the hinge mounting portion 211 can have a height corresponding to the top surface of the housing 10. Therefore, when the upper hinge 31 is installed, the hinge plate 310 can be exposed upwards from the hinge mounting portion 211.

[0107] Of course, if necessary, the hinge mounting portion 211 can also be formed at the same height as the upper part 21. The hinge mounting portion 211 can be formed on the side and back corners of the upper part 21, and open upward, side and rearward.

[0108] The guide member 40 may be provided on the bottom surface 211a of the hinge mounting portion 211. The guide member 40 may have a guide groove 400 for guiding the movement of the hinge pin 313. For example, the guide member 40 may be made of an engineering plastic material with wear resistance and lubricity. Therefore, it will not break even under repeated movement of the hinge pin 313, ensuring smooth movement of the hinge pin 313. The guide groove 400 may be referred to as a guide portion or a guide slot. Furthermore, in addition to a recessed groove shape, the guide groove 400 may also include an open hole shape.

[0109] The guide member 40 may have an upwardly opening guide groove 400. The guide groove 400 may be configured as a single groove formed by a plurality of paths 406 extending in different directions. That is, the plurality of paths 406 may be connected in series and form a single, interconnected groove. As an example, the guide groove 400 may have a shape where, when viewed from the front, the central portion is concave to the rear and the two sides bulge forward. In this case, the protrusion distances of the two forward-bulging ends may be different.

[0110] To form the guide groove 400, the guide member 40 may include: a pair of side portions 411 spaced apart from each other; and a first connecting portion 412 and a second connecting portion 413 connecting the two ends of the side portions 411. It may also include a bottom 415 connecting the side portions, the first connecting portion 412, and the second connecting portion 413 and forming a bottom surface.

[0111] The pair of side portions 411 may have a shape corresponding to the extended shape of the guide groove 400 and be spaced apart by a distance corresponding to the diameter of the hinge pin 313. Furthermore, a plurality of paths 406 may be defined according to the shape of each section of the pair of side portions 411. For example, the plurality of paths 406 may be five. The first connecting portion 412 and the second connecting portion 413 may be formed with an arc to have a curvature corresponding to the hinge pin 313.

[0112] On the other hand, the guide member 40 may also include a reinforcing portion 414. The reinforcing portion 414 may form the upper end of the guide member 40 and protrude outwards when the guide member 40 is installed in the upper part 21. That is, when the guide member 40 is installed in the upper part 21, the remaining portion except for the reinforcing portion 414 can be inserted into the interior of the upper part 21, while the reinforcing portion 414 can protrude through the hinge mounting portion 211. In this case, the reinforcing portion 414 may also protrude slightly upwards from the bottom surface 211a of the hinge mounting portion 211.

[0113] The reinforcing portion 414 may be formed along the upper ends of the side portion 411, the first connecting portion 412, and the second connecting portion 413. Furthermore, the guide member 40 may be reinforced by protruding further outward than the side portion 411, the first connecting portion 412, and the second connecting portion 413.

[0114] That is, by strengthening the structure, even if the hinge pin 313 collides strongly with the inner surface of the guide member 40 during the opening and closing of the upper part 21, the guide member 40 will not break. Furthermore, a plurality of reinforcing ribs 416 extending downward from the reinforcing part 414 can be formed on the side part 411. Through the reinforcing part 414, the guide member 40 will not break even under stronger impacts.

[0115] Of course, the guide groove 400 can be formed directly in the upper part 21, rather than being formed separately in the guide member 40. As an example, the guide groove 400 can also be formed by directly opening in the cap decoration forming the top or bottom surface of the upper part 21.

[0116] On the other hand, an access hole 212 may be formed in the hinge mounting portion 211. The access hole 212 provides a passage for wires 213 connected to electrical components such as heaters, sensors, lighting devices, and displays disposed inside the upper portion 21. The access hole 212 may be formed on the bottom surface of the hinge mounting portion 211 and open between the front surface of the hinge mounting portion 211 and the guide member 40. Furthermore, it may be located in the rearwardly recessed central region of the guide member 40. The access hole 212 may be formed with a diameter that can be configured between the first path 401 and the fifth path 405 of the guide groove 400, described later.

[0117] Figure 5 This is a partial perspective view showing the installation state of the second hinge of the refrigerator. Figure 6 This is an exploded perspective view of the second hinge and the guide member. Figure 7 This is a partial perspective view showing the installation state of the second hinge when the door is open.

[0118] As shown in the figure, the second hinge 32 can connect the front of the housing 10 and the lower part of the upper part 21. The second hinge 32 can be installed such that one side is fixedly mounted to the front of the housing, while the other side can move along the guide groove 400 formed at the lower end of the upper part 21.

[0119] The second hinge 32 may include a hinge bracket 321, a hinge plate 322, and a hinge pin 323. The hinge plate 322 may be referred to as the second hinge plate or the intermediate hinge plate. Furthermore, the hinge pin 323 may be referred to as the second hinge pin or the intermediate hinge pin.

[0120] The hinge bracket 321, used to mount the second hinge 32 to the housing 10, can be formed of a plate-shaped metal material. Furthermore, the hinge bracket 321 can be disposed on the front side of the partition 13 and extend along the front side of the partition 13. The hinge bracket 321 can have a plurality of fastening holes 321a and 321b, through which a fastening member S is fastened to the plurality of fastening holes 321a and 321b. Through the fastening of the fastening member S, the second hinge 32 can be fixedly mounted to the housing 10.

[0121] Furthermore, the hinge bracket 321 may have an insertion portion 321c into which the rear end of the hinge plate 322 is inserted. The rear end of the hinge plate 322 can be pressed into the insertion portion 321c and securely fixed to each other. Of course, the hinge bracket 321 and the hinge plate 322 may also be formed as a single component, which can be formed by bending a plate-shaped metal material.

[0122] The hinge plate 322 may be formed of a plate-shaped metal material and may protrude forward from the hinge bracket 321 and extend downward toward the upper part 21. Furthermore, a closing guide 324 may be recessed on the circumferential surface of the hinge plate 322. The closing guide 324 may be configured to function by contacting a closing device 217 that assists in closing the upper part 21.

[0123] The closing device 217 can be disposed on the bottom surface of the upper part 21, and when the upper part 21 rotates to below a set angle, it elastically deforms upon contact with the hinge plate 322 to reduce the closing speed of the upper part 21. Furthermore, when the upper part 21 rotates further below the set angle, such as... Figure 5 As shown, the closing device 217 elastically returns to its original position as it is inserted into the inside of the closing guide 324, providing elastic force to completely close the upper door 21. Of course, the closing device 217 can have various structures that enable the upper door 21 to close at angles below a set value.

[0124] On the other hand, a stop portion 325 can be formed on the other side of the hinge plate 322, which contacts the stop member 218 provided on the bottom surface of the upper part 21. The stop portion 325 can restrain the upper part 21 from opening further by contacting the stop member 218 at the moment when the upper part 21 is rotated to a set angle and thus fully opened. As an example, the stop portion 325 can be formed to protrude slightly upward from one end of the second hinge plate and will not break even if it repeatedly contacts the stop member 218.

[0125] A pair of hinge pins 323 may be provided on the hinge plate 322. The pair of hinge pins 323 may be located on the same extension line in the vertical direction as the hinge pins 323 of the first hinge 31. Therefore, during the opening and closing of the upper door 21, the upper door 21 can rotate stably without eccentricity or wobbling. The hinge pins 323 may consist of a third pin 323a and a fourth pin 323b, the configuration and spacing of which are the same as those of the first pin 131a and the second pin 131b; therefore, a detailed description of them is omitted.

[0126] The third pin 323a and the fourth pin 323b can pass through the hinge plate 322 in the vertical direction. Thus, the third pin 323a and the fourth pin 323b can be inserted into the guide grooves 400 at the lower end of the upper part 21 and the upper end of the lower part 22, respectively. That is, the second hinge 32 can support the upper part 21 from below to allow rotation, and simultaneously support the lower part 22 from above to allow rotation. Of course, if there is no lower part 22 or the lower part 22 is not opened and closed by rotation, the third pin 323a and the fourth pin 323b do not need to protrude for engagement with the lower part 22.

[0127] Furthermore, flanges 323c may be formed on the third pin 323a and the fourth pin 323b. The flanges 323c may be formed by deformation when the third pin 323a and the fourth pin 323b are pressed into the hinge plate 322, and may be firmly bonded to the hinge plate 322.

[0128] A guide member 40 may also be provided above the hinge pin 323. The guide member 40 may have a guide groove 400 into which the hinge pin 323 is inserted. The guide member 40 may have the same structure and shape as the guide member 40 provided on the upper part of the upper part 21, only the installation direction is different.

[0129] That is, the guide member 40 can be mounted on the bottom surface of the upper part 21, and the guide groove 400 can be exposed through the bottom surface of the upper part 21. Thus, the third pin 323a and the fourth pin 323b can be inserted into the interior of the guide groove 400. Furthermore, during the opening and closing operation of the upper part 21, the third pin 323a and the fourth pin 323b can move along the guide groove 400. The guide member 40 may include a pair of side portions 411, a first connecting portion 412, and a second connecting portion 413. In addition, a reinforcing portion 414 may be formed on the guide member 40 along the periphery of the guide groove 400.

[0130] On the other hand, the guide member 40 can be inserted into the inner side of the upper part 21 through the bottom surface of the upper part 21. Alternatively, it can be installed through the stop member 218 installed in the lower part 22.

[0131] The stop 218 can be formed of a plate-shaped metal material and is fixedly installed on the bottom surface of the upper part 21. Furthermore, the front end of the stop 218 can be bent downwards, such as... Figure 7 As shown, when the upper part 21 is in the state of being opened at its maximum angle, it contacts the stop part 325, thereby preventing the upper part 21 from being opened further.

[0132] Furthermore, a downwardly extending shielding portion 219 may be formed at the bottom front end of the upper part 21 to shield the closing device 217 and the stop member 218.

[0133] Figure 8 This is a partial perspective view showing the installation state of the third hinge of the refrigerator. Figure 9 This is an exploded perspective view of the third hinge and the guiding member.

[0134] As shown in the figure, the third hinge 33 can connect the bottom surface of the housing 10 and the lower part of the lower part 22. One side of the third hinge 33 can be fixedly installed on the bottom surface of the housing 10, while the other side extends downwards towards the lower part 22.

[0135] The third hinge 33 may include a hinge plate 330 and a hinge pin 333. The hinge plate 330 may be referred to as the third hinge plate or the lower hinge plate. And the hinge pin 333 may be referred to as the third hinge pin or the lower hinge pin.

[0136] The hinge plate 330 may be formed of a plate-shaped metal material. Furthermore, the hinge plate 330 may include a fixing portion 331 and an extension portion 332. The fixing portion 331 may be fixedly installed on the bottom surface of the housing 10. As an example, the hinge plate 330 may be fixedly installed on the bottom surface of the housing 10 using a fastening member S that passes through the fixing portion 331.

[0137] Furthermore, a front guide 334 protruding upwards can be formed at the front end of the fixing part 331. The front guide 334 can contact the front of the housing 10. Thus, when the third hinge 33 is installed onto the housing 10, the fixing part 331 can be aligned in an accurate position by the contact between the front guide 334 and the front of the housing 10.

[0138] A support leg 336 can be mounted on the hinge plate 330. For example, the support leg 336 can be mounted at the front end of the fixing part 331 or the rear end of the extension part 332. The support leg 336 is used to support the housing 10 on the ground and can be threaded onto the hinge plate 330. Thus, the height of the ground and the housing 10 can be adjusted by rotating the support leg 336, and the tilt angle of the housing 10 can also be adjusted.

[0139] The extension 332 can extend forward from the front end of the fixing part 331. The extension 332 can protrude further forward than the front of the housing 10 and extend to overlap with the guide groove 400 formed on the bottom surface of the lower part 22.

[0140] A closing guide 334 may be formed on one side of the extension 332, which functions as the closing device 227 mounted on the bottom surface of the lower section 22. The closing device 227 and the closing guide 334 may have the same structure as the closing device 217 and the closing guide 324 provided on the upper section 21, the only difference being their positions.

[0141] Furthermore, a stop portion 335 may be formed on the other side of the extension 332, which contacts the stop member 228 protruding downward from the bottom surface of the lower part 22. The stop member 228 and the stop portion 335 can contact each other when the lower part 22 is opened at its maximum angle, thereby restricting further opening of the lower part 22.

[0142] A pair of hinge pins 333 may be provided on the hinge plate 330. The pair of hinge pins 333 may protrude upward from the extension 332. As an example, the hinge pins 333 may include a fifth pin 333a and a sixth pin 333b.

[0143] The hinge pin 333 can be located on the same extension line in the vertical direction as the hinge pin 232 of the second hinge. That is, the configuration and spacing of the fifth pin 333a and the sixth pin 333b are the same as the hinge pins 313 and 323 of the first hinge 31 and the second hinge 32, so detailed descriptions are omitted. In addition, the hinge pin 333 can be located on the same extension line in the vertical direction as the hinge pins 323 and 333 of the first hinge 31 and the second hinge 32, so the hinge pins 313, 323, and 333 of the first hinge 31, the second hinge 32, and the third hinge 33 can all be located on the same extension line.

[0144] Furthermore, flanges 333c can be formed on the fifth pin 333a and the sixth pin 333b. The flanges 333c can be formed by deformation when the fifth pin 333a and the sixth pin 333b are pressed into the hinge plate 330, and can be firmly connected to the hinge plate 330.

[0145] A guide member 40 may also be provided above the hinge pin 333. The guide member 40 may have a guide groove 400 into which the hinge pin 333 is inserted. The guide member 40 may have the same structure and shape as the guide member 40 of the upper part 21, the only difference being the installation position.

[0146] That is, the guide member 40 can be installed on the bottom surface of the lower part 22, and the guide groove 400 can be exposed through the bottom surface of the lower part 22. Therefore, during the opening and closing operation of the lower part 22, the fifth pin 333a and the sixth pin 333b can move along the guide groove 400. Furthermore, the guide member 40 may include a pair of side portions 411, a first connecting portion 412, and a second connecting portion 413. Additionally, a reinforcing portion 414 may be formed on the guide member 40 along the periphery of the guide groove 400.

[0147] On the other hand, the guide members 40 for mounting the first hinge 31, the second hinge 32, and the third hinge 33 can all have the same structure. In particular, the guide grooves 400 for guiding the movement of the hinge pins 333 are located on the same extension line and formed in the same shape, differing only in their vertical positions, thereby allowing the upper and lower ends to rotate along the same path without tilting or eccentricity when opening and closing the lower part 22.

[0148] The structure of the guide member 40 will now be described in more detail with reference to the accompanying drawings. It should be noted that the description below is based on the guide groove 400 into which the hinge pin 333 of the first hinge 31 is inserted; the guide grooves 400 into which the hinge pins 333 of the second hinge 32 and the third hinge 33 are inserted also have the same shape.

[0149] Figure 10 This is a top view showing the configuration of the path that forms the guide groove of the guide member. Figure 11 This is a perspective view of the guide component. Figure 12 This is a diagram showing the configuration of the guide groove and hinge pin when the door is closed.

[0150] As shown in the figure, the guide member 40 can form an upwardly opening guide groove 400 through a pair of side portions 411 and first connecting portions 412 and second connecting portions 413 on both sides. Furthermore, the guide groove 400 can be achieved by continuously forming a plurality of paths 406 extending in different directions. That is, the hinge pin 313 can open and close the door 20 simultaneously by changing the position of the rotation center of the door 20 as it passes through the plurality of paths 406 in sequence. In other words, during the opening and closing of the door 20, the door 20 can rotate without interfering with adjacent walls O or other doors 20 of the refrigerator or storage members 111, 121.

[0151] In detail, the guide groove 400 may be composed of a plurality of paths 406. Furthermore, the paths 406 may extend in different directions, and the plurality of paths 406 may have a continuously connected structure. The plurality of paths 406 may be formed in various shapes, such as straight lines, arcs with different curvatures, or circular arcs with different center points, or may be formed by combining at least one or more of these shapes.

[0152] The movement path of the hinge pin 313 depends on the shape of the guide groove 400, and the position of the rotation center of the door 20 can move according to the position of the moving hinge pin 313. At this time, the rotation center of the door 20 can change, so that the door 20 will not interfere with the wall O or other doors 20 of the refrigerator 1, nor will it interfere with the introduction and exit of the storage components 111 and 121.

[0153] The guide groove 400 can be composed of a plurality of paths 406 defined by a plurality of circular arcs with different centers C. In this case, the plurality of paths 406 can be circular arcs or straight lines or curves connecting the two ends of the circular arcs.

[0154] The guide groove 400 can accommodate the entire pair of hinge pins 313. Furthermore, the width of the guide groove 400 can correspond to the outer diameter of the hinge pins 313. Therefore, when the door 20 rotates, the hinge pins 313 can move in contact with the inner surface of the guide groove 400. Alternatively, the width of the guide groove 400 can be slightly larger than the hinge pins 313, thereby ensuring smooth rotation of the door 20.

[0155] The guide groove 400 can be formed with both ends facing forward and protruding backward between the two ends. In this case, one end of the guide groove 400 can be formed at a position spaced from the front of the door 20 by a predetermined distance D7 and from the side 21b of the door 20 by a predetermined distance D8. At this time, one end of the guide groove 400 can be located at the position of the hinge pin 313a when the door 20 is closed. Furthermore, the other end of the guide groove 400 can be formed at a position spaced from the front of the door 20 by a predetermined distance D9 and from the side 21b of the door 20 by a predetermined distance D10. At this time, the other end of the guide groove 400 can be located at the position of the hinge pin 313b when the door 20 is fully opened.

[0156] Furthermore, one end of the guide groove 400 can be closer to the front of the door 20 than the other end of the guide groove 400. Also, one end of the guide groove 400 can be further away from the side 21b of the door 20 than the other end of the guide groove 400. Furthermore, both ends of the guide groove 400 can be located further forward than the center position in the front-rear direction of the door 20.

[0157] As an example, the guide groove 400 can be composed of five paths 406. The guide groove 400 can be formed by continuously connecting the first path 401, the second path 402, the third path 403, the fourth path 404, and the fifth path 405. Furthermore, the center C of the paths 406 can be located at different positions. In this case, the center C of the path 406 is a virtual point that does not actually appear on the door 20, and therefore can also be called a virtual center.

[0158] The first path 401 may form one end of the guide groove 400. The first path 401 may be located in a region away from the side 21b of the door 20, with the center of the guide groove 400 as a reference. Furthermore, the first path 401 may form one of the two protruding sides of the guide groove 400 away from the side 21b of the door 20.

[0159] Of the plurality of paths 406, the first path 401 may be located at the position closest to the front 21a of the door 20. That is, the first path 401 may be furthest from the back 21d of the door 20. Furthermore, of the plurality of paths 406, the first path 401 may be located at the position furthest from the side 21b of the door 20.

[0160] The first path 401 may extend obliquely or with an arc from the end of the guide groove 400 toward the rear. Figure 10 (in the direction opposite to the Y-axis) and lateral ( Figure 10 (x-axis direction in the diagram). That is, the first path 401 can be formed by extending in a direction close to the back face 21d and side face 21b of the door 20.

[0161] Furthermore, the tangent at the extended end of the first path 401 can be formed to have a set angle αp1 relative to the front surface 21a of the door 20. In this case, the set angle αp1 can be formed to be smaller than the set angle αp5 of the fifth path 405.

[0162] The first path 401 can be configured such that the hinge pin 313 is located in the first path 401 when the door 20 is closed. That is, the first pin 313a and the second pin 313b can be located at both ends of the first path 401. The extension direction of the first path 401 can correspond to the configuration of the first pin 313a and the second pin 313b. Furthermore, the length of the first path 401 can correspond to the distance between the centers of the first pin 313a and the second pin 313b.

[0163] Therefore, the first path 401 can form the path through which the hinge pin 313 moves when the door 20 begins to open. That is, if the hinge pin 313 starts to move from the first path 401, the door 20 can be opened.

[0164] Furthermore, the first center C1, which serves as the center of the arc forming the first path 401, can be the point where a vertical line passing through the contact point of the first pin 313a and the guide groove 400 intersects with a vertical line passing through the contact point of the second pin 313b and the guide groove 400.

[0165] The first center C1 can be located in the corner area of ​​the front 21a and side 21b of the door 20. Therefore, when the door 20 begins to open, it can prevent the corners of the door 20 from interfering with the wall O. Furthermore, the center... In this context, the first center C1 can be located on the side 21b closest to the door 20, i.e., the leftmost side. Figure 10 The position (x-axis direction) in the diagram.

[0166] The second path 402 can extend to the left and rear from the end of the first path 401. The second path 402 can be located further away from the front 21a of the door 20 than the first path 401, and can be located closer to the side 21b of the door 20. That is, the second path 402 can extend further towards the back 21d and side 21b of the door 20.

[0167] Furthermore, the tangent at the extended end of the second path 402 can be formed to have a set angle αp2 with reference to the front surface 21a of the door 20. In this case, the set angle αp2 can be formed to be smaller than the set angle αp1 of the first path 401.

[0168] Furthermore, the second path 402 can be located in the region on the side 21b of the door 20 away from the center of the guide groove 400. Also, the second path 402 can be located in the region between the center of the guide groove 400 and the first path 401.

[0169] The length of the arc of the second path 402 can be smaller than the length of the arc of the first path 401. Furthermore, the second center C2, which forms the center of the arc of the second path 402, can be located further forward than the first center C1. Figure 10 The position (in the y-axis direction) is located further away from the side 21b of the door 20.

[0170] The third path 403 can extend to the left and rear from the end of the second path 402. The third path 403 can be located further away from the front 21a of the door 20 than the second path 402, and can be located closer to the side 21b of the door 20. That is, the third path 403 can extend in a direction that is further closer to the back 21d and side 21b of the door 20.

[0171] Furthermore, the tangent at the extended end of the third path 403 can be formed to have a set angle αp3 with reference to the front surface 21a of the door 20. In this case, the set angle αp3 can be formed at a smaller size than the set angle αp2 of the second path 402. Among the set angles of the path 406, the set angle αp3 can be formed at its minimum size.

[0172] Furthermore, at least a portion of the third path 403 may be located in the central region of the guide groove 400. Also, the two ends of the third path 402 may be located on the left and right sides respectively, with the center of the guide groove 400 as a reference.

[0173] The length of the arc of the third path 403 can be smaller than the length of the arc of the second path 402. Furthermore, the third center C3, which forms the center of the arc of the third path 403, can be located further forward than the first center C1. Figure 10 The third center C3 is located at a position (in the y-axis direction) and is positioned further back than the second center C2. Furthermore, the third center C3 can be located further away from the side 21b of the door 20 than the second center C2.

[0174] The fourth path 404 can extend to the left and forward from the end of the third path 403. The fourth path 404 can be located closer to the front 21a and side 21b of the door 20 than the third path 402. That is, the fourth path 404 can extend in a direction closer to the front 21a and side 21b of the door 20.

[0175] Furthermore, the tangent at the extended end of the fourth path 404 can be formed to have a set angle αp4 with reference to the front surface 21a of the door 20. In this case, the set angle αp4 can be formed to be larger than the set angle αp3 of the third path 403 and smaller than the set angle αp2 of the second path 402.

[0176] Furthermore, the fourth path 404 can be located in a region near the side 21b of the door 20, with the center of the guide groove 400 as a reference. Also, the fourth path 404 can be located in the region between the center of the guide groove 400 and the fifth path 405.

[0177] The length of the arc of the fourth path 404 can be greater than the lengths of the arcs of the second path 402 and the third path 403, but less than the length of the arc of the first path 401. Furthermore, the fourth center C4, which forms the center of the arc of the fourth path 404, can be located further forward than the first center C1. Figure 10 The fourth center C4 can be located further back than the third center C3, in the y-axis direction. Furthermore, the fourth center C4 can be located further away from the side 21b of the door 20 than the third center C3.

[0178] The fifth path 405 can form the other end of the guide groove 400. The fifth path 405 can be located in a region near the side 21b of the door 20, with the center of the guide groove 400 as a reference. Furthermore, the fifth path 405 can form on one of the two protruding sides of the guide groove 400, near the side 21b of the door 20. Throughout the entire path 406 of the guide groove 400, the fifth path 405 can be located at the position closest to the side of the door 20.

[0179] The fifth path 405 may be located further away from the front 21a of the door 20 than the first path 401, and may be located closer to the front 21a of the door 20 than the second path 402, the third path 403 and the fourth path 404.

[0180] The fifth path 405 may extend obliquely or with an arc from the end of the guide groove 400 toward the front. Figure 10 (in the Y-axis direction) and lateral ( Figure 10 (x-axis direction in the diagram). That is, the fifth path 405 can be formed by extending in a direction close to the front 21a and side 21b of the door 20.

[0181] Furthermore, the tangent at the end of the fifth path 405 can be formed to have a set angle αp5 relative to the front surface 21a of the door 20. In this case, the set angle αp5 can be formed to be smaller than the set angle αp4 of the fourth path 404. Moreover, compared to the other paths 401, 402, 403, and 404, the set angle αp5 of the fifth path 405 can be formed to be the largest.

[0182] Furthermore, the fifth path 405 can be configured such that the hinge pin 313 is located in the fifth path 405 when the door 20 is opened to its maximum position. In this case, the length of the fifth path 405 can be less than the distance between the centers of the first pin 313a and the second pin 313b.

[0183] The fifth path 405 can extend to the left and forward from the end of the fourth path 404. Both the fifth path 405 and the first path 401 can extend forward, and the first path 401 can extend further forward than the fifth path 405.

[0184] The length of the arc of the fifth path 405 can be greater than the lengths of the arcs of the second path 402 and the third path 403, but less than the length of the arc of the first path 401. Furthermore, the fifth center C5, which forms the center of the arc of the fifth path 405, can be located further back than the first center C1, and is the furthest back among the plurality of centers. Additionally, the fifth center C5 can be located further away from the side 21b of the door 20 than the fourth center C4. That is, from the first center C1 to the fifth center C5, they can be sequentially further away from the side of the door. Therefore, the guide groove 400 allows for smoother movement of the hinge pin 313 and enables gentler opening and closing rotation of the door 20.

[0185] On the other hand, an arc 407 may be formed at the portion where the plurality of paths 406 connect to each other. The arc 407 can prevent the hinge pin 313 from being impacted when passing through the plurality of paths 406 and can enable the hinge pin 313 to move smoothly within the guide groove 400.

[0186] Specifically, a first arc portion 407a may be formed between the first path 401 and the second path 402. A second arc portion 407b may be formed between the second path 402 and the third path 403. A third arc portion 407c may be formed between the third path 403 and the fourth path 404. A fourth arc portion 407d may be formed between the fourth path 404 and the fifth path 405.

[0187] The plurality of said arc portions 407 may have the same curvature. Furthermore, the plurality of said arc portions 407 may also be formed to have different curvatures from each other. As an example, the radius r of said arc portion 407 may be equal to or less than the radius of said hinge pin 313.

[0188] Hereinafter, with reference to the accompanying drawings, the movement state of the hinge pin 313 in the refrigerator 1 described above, which changes according to the opening and closing of the door 20, will be explained in more detail. It should be noted that, for ease of explanation, the description is based on the case where the first hinge 31 moves along the guide member 40 on the top surface of the upper door 21; the second hinge 32 and the third hinge 33 also operate in the same manner.

[0189] Figures 12 to 18 It is a diagram showing the movement of the hinge pins, which changes according to the opening angle of the door.

[0190] like Figure 12 As shown, when the door 20 is closed, the gasket 214 on the back of the door 20 can remain in close contact with the front of the cabinet 10. Furthermore, the refrigerator 1 can be installed indoors with the wall O positioned adjacent to the side of the cabinet 10 and the door 20.

[0191] Furthermore, when the door 20 is closed, the hinge pin 313 can be located on the first path 401. That is, the first pin 313a and the second pin 313b can be located at both ends of the first path 401. In particular, the second pin 313b can be located at the intersection of the arcs forming the first path 401 and the second path 402. That is, the second pin 313b can be located on the boundary line where the first path 401 and the second path 402 intersect. Therefore, at the instant the door 20 begins to open, the second pin 313b can move towards the second path 402.

[0192] On the other hand, if the rotation center of the door 20 is located at the corner of the side 21b and front 21a of the door 20, which are expected to first interfere with the wall O when the door 20 begins to open, interference between the door 20 and the wall can be prevented.

[0193] Therefore, in order to guide the rotation of the door 20 at the moment it begins to open, the first center C1 can be located near the corners of the front 21a and side 21b of the door 20. Furthermore, the centers C of the plurality of paths 406 constituting the guide groove 400 can all be located further rearward than the front 201 of the door 20. That is, the centers C of the paths 406 constituting the guide groove 400 can all be located on the inner side of the door 20.

[0194] On the other hand, if the user performs the opening operation of the door 20, the door 20 can move instantaneously forward and to the right along the direction of the first path 401 while the door 20 begins to open.

[0195] like Figure 13 As shown, at the instant the door 20 begins to open, the first pin 313a can move in the first path 401, and the second pin 313b can enter the second path 402.

[0196] Since the first pin 313a and the second pin 313b are located on the first path 401 and the second path 402 extending in different directions from each other, the door 20 will not twist or slide, and the door 20 will be opened accurately as the rotational force generated by the rotational operation is transmitted.

[0197] As an example, in such Figure 13 In this state, the door can be opened so that the angle α1 between the front of the housing 10 and the back of the door 21d is approximately 7°. If the second pin 313b moves into the second path 402, the door 20 can rotate slightly forward and to the right, thereby making it easier to separate the washer 214 that is in close contact with the front of the housing 10. That is, interference caused by the washer 214 that is in close contact with the housing 10 when the door 20 rotates can be prevented, and the subsequent rotation of the door 20 is smoother.

[0198] If the door 20 is further opened, thus becoming as follows Figure 14 In this state, the angle α2 between the front of the housing 10 and the back 21d of the door 20 can be approximately 9°. At this time, the first pin 313a can be located in the first path 401, and the second pin 313b can be in a state where it enters the third path 403. That is, the second path 402 can be between the first pin 313a and the second pin 313b.

[0199] Even in the state described above, the side 21b of the wall O and the door 20 can remain separated from each other. Furthermore, the hinge pin 313 can move smoothly along the guide groove 400, with the first pin 313a and the second pin 313b each moving on the first path 401 and the second path 402 respectively, and the door 20 will not twist or slide when it rotates.

[0200] If the door 20 is further opened, thus becoming as follows Figure 15In this state, the angle α3 between the front of the housing 10 and the back 21d of the door 20 can be approximately 40°. At this time, the first pin 313a can move to the second path 402 while the second pin 313b moves to the fourth path 404. That is, the third path 403 can be located between the first pin 313a and the second pin 313b.

[0201] In the state described above, the wall O and the side 21b of the door 20 can be in the closest possible state, and the door 20 can rotate without colliding with the wall O. Furthermore, the hinge pin 313 moves smoothly along the guide groove 400, and the first pin 313a and the second pin 313b each move along different second paths 402 and fourth paths 404, preventing the door 20 from twisting or sliding during rotation.

[0202] If the door 20 is further opened, thus becoming as follows Figure 16 In this state, the angle α4 between the front of the housing 10 and the back 21d of the door 20 can be approximately 60°. At this time, the first pin 313a can move to the third path 403 while the second pin 313b can move along the fourth path 404. That is, the third path 403 can be located between the first pin 313a and the second pin 313b.

[0203] In the state described above, the wall O and the side 202 of the door 20 move away from each other again with rotation, and the door 20 and the wall O will not collide with each other. Furthermore, the hinge pin 313 moves smoothly along the guide groove 400, and the first pin 313a and the second pin 313b each move along different third paths 403 and fourth paths 404, respectively, so that the door 20 will not twist or slide with rotation.

[0204] If the door 20 is further opened, thus becoming as follows Figure 17 In this state, the angle α5 between the front of the housing 10 and the back 21d of the door 20 can be approximately 90°. At this time, the first pin 313a can move to the fourth path 404, and the second pin 313b can move to the fifth path 405.

[0205] In the state described above, the front surface 201 of the wall O and the door 20 can be separated from each other, and the door 20 will not collide with the wall O. Furthermore, the hinge pin 313 moves smoothly along the guide groove 400, with the first pin 313a and the second pin 313b each moving on different fourth paths 404 and fifth paths 405, respectively, and the door 20 will not twist or slide with rotation.

[0206] If the door 20 is opened to its maximum, thus becoming as follows Figure 18 In this state, the angle α6 between the front of the housing 10 and the back of the door 20 can be approximately 110°. At this time, the first pin 313a can move along the fourth path 404, and the second pin 313b can move to the end of the fifth path 405.

[0207] In the state described above, although the front of the door 20 is closer to the wall O, it is separated from the wall O and does not come into contact with it. Furthermore, the hinge pin 313 can stop inside the guide groove 400, and the door 20 can be kept stopped by the second pin 313b contacting the end of the fifth path 405.

[0208] On the other hand, at the moment the door 20 closes or is fully opened, further rotation due to inertia may occur, which could lead to a collision with the guide member 40 and generate an impact. Under repeated impacts, the guide member 40 may break or deform, and may fail to properly guide the hinge pin 313. Therefore, the guide groove 400 may also have clearance portions 408 and 409 to prevent impacts with the hinge pin 313.

[0209] Figure 19 This is a diagram showing the position of the hinge pin when the door is closed.

[0210] As shown in the figure, the closed state of the door 20 can be the state in which the hinge pin 313 is positioned in the first path 401. Furthermore, at the moment the door 20 closes, the washer 214 may be compressed, and in cases where the door 20 is heavy due to stored items or closes at a relatively fast speed, it may also be more compressed than usual. Figure 19 The state further compresses the gasket 214.

[0211] At the end of the guide groove 400, i.e., the end of the first path 401, a first recessed portion 408 may be formed in the extending direction of the first path 401. The first recessed portion 408 may form space for the movement of the first pin 313a, so as to prevent impact from being applied to the first connecting portion 412 when the door 20 is further rotated in the closing direction by the compression of the washer 214. The first recessed portion 408 may be further recessed into the first connecting portion 412 from the end of the first path 401 at a set interval D3.

[0212] Therefore, under normal conditions when the door 20 is closed, even if the first pin 313a is located at the end of the first path 401, it can be separated from the first connection portion 412 of the guide groove 400 without colliding, so that no impact is applied to the guide member 40.

[0213] Furthermore, when the door 20 is further rotated from the closed state by the compression of the washer 214, the first pin 313a enters the first clearance portion 408, thereby allowing the door 20 to rotate further in the closing direction by approximately 1°. Therefore, it is possible to prevent the first pin 313a from impacting the guide member 40 when the door 20 is closed.

[0214] Figure 20 This is a diagram showing the position of the hinge pin when the door is fully opened.

[0215] As shown in the figure, the door 20 can be opened to its maximum state when the second pin 313b is positioned on the fifth path 405. Furthermore, as... Figure 7 As shown, the stop members 218 and 228 of the door 20 can be prevented from rotating further by contacting the stop portions 235 and 335 of the hinges 32 and 33.

[0216] At the moment when the door 20 is opened to its maximum, causing the stops 218, 228 and the stop portions 235, 335 to contact each other, due to the inertia of the door 20 and the slight gaps between the hinge plate 310, hinge pin 313, guide member 40, and stops 218, 228, the door 20 may rotate further in the opening direction. In particular, when the door 20 is heavy due to stored items or when the door 20 is opened at a relatively fast speed, the door 20 may also... Figure 20 The opening angle has been further increased.

[0217] At this time, a second clearance portion 409, further recessed in the extending direction of the fifth path 405, can be formed at the end of the guide groove 400, i.e., the end of the fifth path 405. The second clearance portion 409 can form space for the movement of the second pin 313b, so that the door 20 can be further rotated in the opening direction. The second clearance portion 409 can be further recessed from the end of the fifth path 405 into the second connecting portion 413 at a set interval D4.

[0218] Therefore, even when the door 20 is opened to its maximum normal position, the second pin 313b is located at the end of the fifth path 405 and can be separated from the second connection 413 without colliding, so that no impact is applied to the guide member 40.

[0219] Furthermore, when the door 20 is rotated further from its fully open position, the second pin 313b engages with the second clearance portion 409, thereby allowing the door 20 to rotate further in the opening direction by approximately 1°. Therefore, it is possible to prevent the second pin 313b from impacting the guide member 40 when the door 20 is opened.

[0220] With the shape of the guide groove 400 and the structure of the hinge pin 313 as described above, the door 20 can be opened and closed as the position of the rotation center changes, and can rotate during the opening and closing process so as not to interfere with the wall O or other doors 20, storage components 111, 121 of the refrigerator 1.

[0221] Figure 21 This is a diagram showing the interval formed by the door and its neighbors when the door is opened and closed. Figure 22 This is a diagram showing the spacing between the door and the wall and storage components when the door is opened to its maximum extent.

[0222] As shown in the figure, walls O can be arranged on both sides of the refrigerator 1, and the walls O and the refrigerator can be separated by a predetermined interval G1. Furthermore, a pair of doors 20 can be arranged on the left and right sides of the refrigerator 1, and the pair of doors 20 can be separated by a predetermined interval G2. As an example, the predetermined intervals G1 and G2 can be set to approximately 3mm to 5mm.

[0223] Furthermore, the door 20 can be opened and closed by rotating via the hinges 32 and 33. At this time, the rotation center of the door 20 can be moved by the movement of the hinge pins 313 of the hinges 32 and 33 along the guide groove of the guide member 40, thereby causing the door 20 to rotate.

[0224] Therefore, the door 20 will not interfere with the wall O when it is opened or closed. In addition, the pair of doors 20 located on the left and right sides will not interfere with each other when opening or closing, and the movement of the column trim 209 located between the pair of doors 20 will not interfere with each other, ensuring smooth operation.

[0225] Furthermore, even when the door 20 is fully opened to a set angle α6, the wall O and the door 20 are separated by a set interval G3 and do not come into contact with each other. Moreover, even when the storage components 111 and 121 are introduced or led out through the front of the opening of the housing 10 when the door 20 is fully opened, they will not interfere with the door 20. In this case, a set interval G4 can be separated between the storage components 111 and 121 and the door 20. As an example, when the door 20 is rotated open by 110° relative to the front of the housing 10, the set interval G3 can be between 3mm and 4mm, and the set interval G4 can be between 1mm and 2mm.

[0226] Furthermore, if the hinge pin 313 moves along the guide groove 400, the door 20 can be opened and closed simultaneously by rotating according to the continuously changing position of the rotation center. Therefore, during the opening process of the door 20, the door 20 can perform opening and closing actions to satisfy the set intervals G1, G2, and G3.

[0227] On the other hand, in addition to the foregoing embodiments, this utility model can have various other embodiments. Hereinafter, other embodiments of this utility model will be described with reference to the accompanying drawings. For configurations in embodiments of this utility model that are identical to those in the foregoing embodiments, detailed descriptions and illustrations may be omitted, and the same reference numerals may be used for description.

[0228] Figure 23 This is a front view of the refrigerator according to the second embodiment of this utility model. Figure 24 This is a diagram showing the structure of the hinge pin and guide groove when the refrigerator door is closed.

[0229] As shown in the figure, the refrigerator 1' of the second embodiment of this utility model can have a structure with an upper storage space formed at the top and a lower storage space formed at the bottom. For example, the upper storage space can be a refrigerator compartment, and the lower storage space can be a freezer compartment. Furthermore, the upper compartment 21' can have a structure that allows it to be opened and closed by rotation based on a first hinge 31 and a second hinge 32. And the lower compartment 22' can have a structure that allows it to be opened and closed by being pulled out like a drawer.

[0230] The upper part 21' can be provided with a pair on the left and right sides, and the upper and lower ends can be supported by the first hinge 31 and the second hinge 32. In this case, the structure of the first hinge 31 and the second hinge 32 can be the same as in the first embodiment described above. However, the hinge pin 313 of the second hinge 32 does not extend to the lower part 22'.

[0231] The upper section 21' may be equipped with at least one of an ice maker 23 for making ice and a dispenser 24 for dispensing purified water. Alternatively, both the ice maker 23 and the dispenser 24 may be present, and ice made by the ice maker 23 may be dispensed from the dispenser 24. Furthermore, the upper section 21' may also be equipped with additional electrical components such as a heater, a sensor, and a lighting device.

[0232] Therefore, an access hole 215 can be formed in the hinge mounting portion 211 of the upper part 21'. The access hole 215 can be formed in a size that allows not only the wires 213 connected to the electrical components to pass through, but also the piping 216 for supplying water to the distributor 24 and the ice maker 23 to pass through.

[0233] Therefore, compared to the inlet hole 212 of the first embodiment described above, which only allows the wire 213 to enter and exit, the inlet hole 215 can be formed with a larger diameter. Furthermore, the inlet hole 215 can be located between the recessed portion of the guide groove 500 formed in the hinge mounting portion 211 and the front surface 21a of the upper part 21'. For example, the diameter of the inlet hole 215 can be 23 mm. Moreover, the inlet hole 215 can be spaced approximately 4 mm or more from the front surface 21a, thereby ensuring structural stability and reducing temperature changes in the water flowing along the piping 216.

[0234] Furthermore, to avoid interference with the entry hole 215, the guide groove 500 can be located further rearward than the guide groove 400 in the first embodiment described above. That is, the distance D5 between the guide groove 500 and the front surface 21a of the upper part 21' can be longer than in the first embodiment described above.

[0235] Furthermore, due to the movement of the guide groove 500, the installation position of the guide member 50 can also be moved further rearward. Additionally, due to the movement of the guide member 50, the shape of the guide groove 500, i.e., the position of the center C used to form the plurality of paths 506, can change.

[0236] Furthermore, the first hinge 31 may include the hinge plate 310 and the hinge pin 313. The hinge pin 313 may include a pair of first pins 313a and second pins 313b, which are inserted into the interior of the guide groove 500.

[0237] The guide groove 500 can be formed by connecting a plurality of paths 506 extending in different directions. As an example, the guide groove 500 may include a first path 501, a second path 502, a third path 503, a fourth path 504, and a fifth path 505. The shape of the guide groove 500 is generally similar to that of the guide groove 400 in the aforementioned embodiment, but the shape, position, and center position of each path 506 are slightly different.

[0238] The first path 501 can be configured such that, with the upper part 21' closed, the first pin 313a and the second pin 313b are located at both ends. Furthermore, the first path 501 can determine the movement paths of the first pin 313a and the second pin 313b when the upper part 21' begins to open.

[0239] The first center C1, which is the center of the arc forming the first path 501, can be located inside the upper part 21', which is separated from the front 21a and side 21b of the upper part 21', and is located closer to the side 21b and front 21a of the upper part 21' than the guide groove 500 and the inlet hole 215.

[0240] Furthermore, the second path 502 can extend downwards and to the left from the end of the first path 501. In this case, the second center C2, which is the center of the arc forming the second path 502, can be located inside the upper part 21' near the front 21a. At this time, the second center C2 is not only located further forward than the first center C1, but also closer to the side 21b of the upper part 21' than the first center C1.

[0241] That is, among the plurality of centers C within the upper part 21', the second center C2 may be located at the position closest to the front 21a and side 21b of the upper part 21'. The plurality of centers C may all be located on the inner side of the upper part 21', separated from the front 21a and side 21b of the upper part 21'.

[0242] The second path 502 may have a steeper inclination than the second path 402 of the aforementioned embodiment, and can guide the upper part 21' so that the end of the upper part 21' does not contact the wall O when the opening begins, even when the position of the guide groove 500 is moved backward.

[0243] The third path 503 can extend downward and to the left from the end of the second path 502. At this time, the third center C3, which is the center of the arc forming the third path 503, can be located further back and further away from the side 21b of the upper part 21' than the second center C2.

[0244] The fourth path 504 can extend forward and to the left from the end of the third path 503. At this time, the fourth center C4, which is the center of the arc forming the fourth path 504, can be located further back and further away from the side 21b of the upper part 21' than the third center C3.

[0245] The fifth path 505 can extend forward and to the left from the end of the fourth path 504. In this case, the fifth center C5, which is the center of the arc forming the fifth path 505, can be located further rearward and farther from the side 21b of the upper part 21' than the fourth center C4. Among the plurality of centers C inside the upper part 21', the fifth center C5 can be located furthest from the front 21a and side 21b of the upper part 21'.

[0246] The fifth path 505 may extend forward in the same manner as the first path 501, and the extended end of the fifth path 505 may be configured to be further away from the front face 21a of the door than the extended end of the first path 501.

[0247] On the other hand, the structure and operation state of the second hinge 32 and guide groove 500 supporting the lower end of the upper part 21' are the same as those of the second hinge 32 and guide groove 400 described above, so detailed descriptions of them are omitted.

[0248] Furthermore, as described in the first embodiment above, the hinge pin 313 moves along the guide groove 500 as the upper part 21' opens and closes. Additionally, the position of the rotation center of the upper part 21' changes continuously as it passes through a plurality of paths 506 formed in the guide groove 500, ensuring that the upper part 21' does not interfere with the wall O or other upper parts 21' or storage components 111, 121 of the refrigerator 1 during rotation.

[0249] Figure 25 This diagram shows the structure of the hinge pin and guide groove in the closed state of the refrigerator door according to the third embodiment of this utility model.

[0250] As shown in the figure, in the structure of the refrigerator 1 of the third embodiment of this utility model, the upper part 21 may not have a dispenser 24 and an ice maker 23, as in the first embodiment described above. Furthermore, the upper and lower ends of the upper part 21 can be supported by the first hinge 31 and the second hinge 32.

[0251] The hinge mounting portion 211 of the upper part 21 may have an entry hole 212 for the entry and exit of a wire 213 connected to an electrical component disposed on the upper part 21. Furthermore, the size of the entry hole 212 may be smaller than the size of the entry hole 215 in the second embodiment described above. Therefore, the distance D6 between the guide groove 600 and the front surface 21a of the upper part 21 can be set to be closer than in the second embodiment.

[0252] Furthermore, the first hinge 31 may include the hinge plate 310 and the hinge pin 313. The hinge pin 313 may include a pair of first pins 313a and second pins 313b, which are inserted into the interior of the guide groove 600.

[0253] A guide member 60 may be provided in the door mounting portion 211, and a guide groove 600 opening upwards may be formed in the guide member 60. The guide groove 600 may be formed by connecting a plurality of paths 606 having different extension directions. As an example, the guide groove 600 may include a first path 601, a second path 602, a third path 603, a fourth path 604, and a fifth path 605. The shape of the guide groove 600 is generally similar to that of the guide groove 600 in the aforementioned embodiment, but the shape and position of the paths 606 and the position of the center C are slightly different.

[0254] The first path 601 can be configured such that, with the upper part 21 closed, the first pin 313a and the second pin 313b are located at both ends. Furthermore, the first path 601 can determine the movement paths of the first pin 313a and the second pin 313b when the upper part 21 begins to open.

[0255] The first center C1, which serves as the center of the arc forming the first path 601, can be located inside the upper part 21 adjacent to the front 21a and side 21b of the upper part 21, and among the plurality of centers C, it can be located at the position closest to the front 21a and side 21b of the upper part 21.

[0256] Furthermore, the second path 602 can extend downwards and to the left from the end of the first path 601. In this case, the second center C2, which forms the center of the arc of the second path 602, can be located further away from the side 21b of the upper part 21 than the first center C1, and is located further forward. Also, the second center C2 can be located further outwards than the front 21a of the upper part 21. That is, among the plurality of centers C, the second center C2 can be located outside the upper part 21, while the first center C1, the third center C3, the fourth center C4, and the fifth center C5 can be located inside the upper part 21.

[0257] With the frontal configuration of the second center C2, the guide groove 600 can be configured to be closer overall to the front 21a of the upper part 21 compared to the second embodiment.

[0258] The third path 603 can extend downwards and to the left from the end of the second path 602. In this case, the third center C3, which is the center of the arc forming the third path 603, can be located further back and farther from the side 21b of the upper part 21 than the second center C2. Furthermore, the third center C3 can be located further forward than the first center C1.

[0259] The fourth path 604 can extend forward and to the left from the end of the third path 603. In this case, the fourth center C4, which is the center of the arc forming the fourth path 604, can be located further rearward and farther from the side of the upper part 21 than the third center C3. Furthermore, the fourth center C4 can be located further rearward than the first center C1.

[0260] The fifth path 605 can extend forward and to the left from the end of the fourth path 604. In this case, the fifth center C5, which is the center of the arc forming the fifth path 605, can be located further back and farther from the side 21b of the upper part 21 than the fourth center C4. Among the plurality of centers C, the fifth center C5 can be located furthest from the front 21a and side 21b of the upper part 21.

[0261] The fifth path 605 may extend forward in the same manner as the first path 601, and the extended end of the fifth path 605 may be configured to be further away from the front surface 21a of the upper part 21 than the extended end of the first path 601.

[0262] On the other hand, the structure and operation of the second hinge 32 and guide groove 600 supporting the lower end of the upper part 21 are the same as those of the first hinge 31 and guide groove 600, so detailed descriptions of them are omitted.

[0263] Furthermore, as described in the first embodiment above, the hinge pin 313 moves along the guide groove 600 as the door 20 opens and closes. Also, the position of the rotation center of the door 20 changes continuously as it passes through a plurality of paths 606 formed in the guide groove 600, thereby preventing the door 20 from interfering with the wall O, other doors 20 of the refrigerator 1, or storage components 111, 121 when rotating.

[0264] Figure 26 This is an exploded perspective view of the refrigerator door according to the fourth embodiment of this utility model. Figure 27 This is a partial perspective view showing the installation state of the hinges when the door is closed. Figure 28 This is a diagram showing the structure of the hinge pin and guide groove when the door is closed.

[0265] As shown in the figure, the door 20" of the refrigerator 1 of the fourth embodiment of the present invention may include: a panel 70, forming the front of the door 20"; and a door body 80, for opening and closing the storage space of the cabinet 10.

[0266] The panel 70 can be installed on the front of the door body 80 and form the front appearance of the door 20". The panel 70 can be made of various materials such as metal, glass, and ceramic. The panel 70 can be detachably installed in the panel receiving portion 811 recessed on the front of the door body 80.

[0267] The door body 80 may include: a front panel 81 forming the front side; a door liner 82 forming the back side; a side frame 83 forming the left and right sides; and an upper cap 84 and a lower cap 85 forming the top and bottom surfaces. Furthermore, the space formed by the combination of the front panel 81, the door liner 82, the upper cap 84, the lower cap 85, and the side frame 83 may be filled with heat-insulating material.

[0268] Furthermore, a gasket 821 that contacts the front of the box 10 can be provided on the back of the door body 80, i.e., the door liner 82.

[0269] Hinge mounting portions 86 may be formed on the upper part of the side and back of the door body 80. The hinge mounting portions 86 may be formed as openings in the side frame 83 and the upper cap 84. The hinge mounting portions 86 may also be formed in the upper cap 84.

[0270] The hinge mounting portion 86 has openings to the side and rear at a position spaced downwards from the upper end of the door 20. That is, the first hinge 31 can be inserted from the rear through the back of the opening of the hinge mounting portion 86. Furthermore, when the first hinge 31 is installed, a portion of the first hinge 31 can be covered by the top surface of the door 20". Specifically, the hinge mounting portion 86 may include: a bottom surface 861, which engages with the first hinge 31; a top surface 862, which faces the bottom surface 861; and a front surface 863 and a side surface 864, connecting the top surface 862 and the bottom surface 861.

[0271] The bottom surface 811 of the hinge mounting portion 86 can have a height corresponding to the top surface of the housing 10. Therefore, the upper end of the door 20" can be formed to be higher than the top surface of the housing 10.

[0272] A guide groove 400 for mounting the first hinge 31 may be formed in the hinge mounting portion 86. As an example, a guide member 40 may be mounted on the bottom surface 861 of the hinge mounting portion 86, and a guide groove 400 may be formed in the guide member 40. The structure of the guide member 40 may be the same as any of the embodiments described above.

[0273] The first hinge 31 can be installed on the top surface of the housing 10. The first hinge 31 may include: a hinge plate 310, which is fixedly installed on the housing 10; and a hinge pin 313, which is disposed on the hinge plate 310 and inserted into the guide groove 400.

[0274] The hinge plate 310 may include a fixing part 311 and an extension part 312, and the hinge pin 313 may be installed in the extension part 312. The fixing part 311 may be provided with: a fixing hole 311a, through which a fixing protrusion 101 provided in the housing 10 passes; and a fixing rod 314, which engages with the fixing protrusion 311.

[0275] The hinge pin 313 includes a pair of first pins 313a and second pins 313b, which can be inserted into the inner side of the guide groove 400. The first pins 313a and second pins 313b can be spaced apart from each other and have a configuration that is spaced apart from each other along the front-back and side directions. The configuration structure of the first pins 313a and second pins 313b can be the same as in the aforementioned embodiments.

[0276] Furthermore, a guide member 40 having the guide groove 400 formed thereon can be installed on the bottom surface of the hinge mounting portion 86. The guide member 40 may have the guide groove 400 formed thereon to guide the movement of the first pin 313a and the second pin 313b.

[0277] The guide groove 400 can be formed by connecting a plurality of paths 406 having different extension directions. As an example, the guide groove 400 may include a first path 401, a second path 402, a third path 403, a fourth path 404, and a fifth path 405. The shape of the guide groove 400 is generally similar to that of the guide groove 400 in the aforementioned embodiment, but the shape and position of each path 406 and the position of the center C are slightly different.

[0278] The first path 401 can be configured such that the first pin 313a and the second pin 313b are located at both ends when the door 20" is closed. Furthermore, the first path 401 can determine the movement path of the first pin 313a and the second pin 313b when the door 20" begins to open.

[0279] The first center C1, which serves as the center of the arc forming the first path 401, can be located on the front of the door body 80, i.e., at the corner of the door body 80 adjacent to the front panel 70 and the side frame 83.

[0280] Furthermore, the second path 402 can extend downwards and to the left from the end of the first path 401. In this case, the second center C2, which is the center of the arc forming the second path 402, can be located further away from the side frame 83 than the first center C1, and further closer to the front panel 81.

[0281] The third path 403 can extend downwards and to the left from the end of the second path 402. In this case, the third center C3, which is the center of the arc forming the third path 403, can be located further back and farther from the side frame 83 than the second center C2. Furthermore, the third center C3 can be located further forward than the first center C1.

[0282] The fourth path 404 can extend forward and to the left from the end of the third path 403. In this case, the fourth center C4, which is the center of the arc forming the fourth path 404, can be located further rearward and farther from the side frame than the third center. Furthermore, the fourth center C4 can be located further rearward than the first center C1.

[0283] The fifth path 405 can extend forward and to the left from the end of the fourth path 404. In this case, the fifth center C5, which is the center of the arc forming the fifth path 405, can be located further back and farther from the side frame 83 than the fourth center C4. Among the plurality of centers C, the fifth center C5 can be located at the position furthest from the front panel 81 and the side frame 83.

[0284] The fifth path 405 can extend forward in the same manner as the first path 401, and the extended end of the fifth path 405 can be configured to be further away from the front of the door 20” than the extended end of the first path 401. Furthermore, an access hole 212 can be formed between the first path 401 and the fifth path 405 for the entry and exit of electrical wires 213 connected to electrical components inside the door 20”. Additionally, piping supplying water to the distributor 24 and ice maker 23 located in the door 20” can also enter and exit through the access hole 212.

[0285] As described above, the first center C1, the second center C2, the third center C3, the fourth center C4, and the fifth center C5 can all be located inside the door body 80, and further rearward than the front panel 81. Furthermore, the first center C1, the second center C2, the third center C3, the fourth center C4, and the fifth center C5 can all be positioned further rearward than the panel 70.

[0286] Furthermore, as described in the first embodiment above, the hinge pin 313 moves along the guide groove 400 as the door 20” opens and closes. The position of the rotation center of the door 20” changes continuously as it passes through a plurality of paths 406 formed in the guide groove 400, thereby preventing interference between the door 20” and the wall O, other doors 20” of the refrigerator 1, or storage components 111, 121 during rotation.

[0287] Figure 29 This is a front view of the refrigerator according to the fifth embodiment of this utility model. Figure 30 This is a front view of the refrigerator with the door open.

[0288] As shown in the figure, the refrigerator 100 of the fifth embodiment of this utility model may include: a cabinet 1000 forming a storage space; and a door 2000 for opening and closing the storage space.

[0289] The cabinet 1000 may include a divider 1300 for dividing the storage space. The divider 1300 may be configured to divide the storage space inside the cabinet 1000 into left and right sections, with the refrigerator compartment 1100 and the freezer compartment 1200 side by side. Furthermore, drawers, shelves, and other storage components may be provided inside the refrigerator compartment 1100 and the freezer compartment 1200.

[0290] The door 2000 may include a refrigerator door 2100 for opening and closing the refrigerator compartment 1100 and a freezer door 2200 for opening and closing the freezer compartment 1200. The refrigerator door 2100 and the freezer door 2200 may be arranged side by side on the left and right sides, and configured to open and close the refrigerator compartment 1100 and the freezer compartment 1200 on the left and right sides respectively by rotating.

[0291] Therefore, an upper hinge 31 and a lower hinge 33 can be respectively attached to the upper and lower ends of the door 2000. The upper hinge 31 can be fixedly installed on the top surface of the housing 1000 and connected to the upper shaft of the door 2000. The structure of the upper hinge 31 can be the same as that of the first hinge 31 in the aforementioned embodiment, so a detailed description thereof is omitted.

[0292] Furthermore, the lower hinge 33 is fixedly installed on the bottom surface of the housing 1000 and is connected to the lower end shaft of the door 2000. The structure of the lower hinge 33 can be the same as that of the third hinge 33 in the aforementioned embodiment, therefore a detailed description thereof is omitted.

[0293] Through the structure of the upper hinge 31 and the lower hinge 33, the hinge pin 313 can move relative to the door 2000 along the path 406 of the guide groove 400 when the door 2000 is opened and closed, and the rotation center of the door 2000 can move. Therefore, when the door 2000 is opened and closed, it can operate without interfering with the wall surface O, and without interfering with the introduction or exit of adjacent doors 2000 or storage components.

[0294] On the other hand, an ice maker 2300 may be installed on the freezer door 2200. The ice maker 2300 can make ice using the cold air from the freezer compartment 1200. Furthermore, a dispenser 2400 may be installed on the front of the freezer door 2200. The dispenser 2400 may be configured to allow purified water or ice to be removed from the outside when the freezer door 2200 is closed.

[0295] Figure 31 This is a perspective view of the refrigerator according to the sixth embodiment of this utility model. Figure 32 This is a front view of the refrigerator with the door open.

[0296] As shown in the figure, the refrigerator 101 of the sixth embodiment of this utility model may include: a cabinet 1001 forming a storage space 1101; and a door 2001 for opening and closing the storage space 1101. The storage space 1101 may be configured as a single space and formed vertically. Furthermore, a plurality of storage components may be continuously arranged in the vertical direction inside the storage space 1101.

[0297] The door 2001 can be opened and closed from the front of the storage space 1101, and the entire front of the opening of the storage space 1101 can be opened and closed using the door 2001. The door 2001 can be opened and closed by rotating the door.

[0298] Therefore, an upper hinge 31 and a lower hinge 33 can be installed on the housing 1001. Furthermore, the upper hinge 31 and the lower hinge 33 can be rotatably connected to the upper and lower parts of the door 20, respectively. The upper hinge 31 and the lower hinge 33 can be located on one side of the left or right side of the front of the housing 1001.

[0299] In detail, the upper hinge 31 can be fixedly installed on the top surface of the housing 1001 or the upper front of the housing, and axially connected to the upper part of the door 2001. A hinge mounting part 2700 for engaging the upper hinge 31 can be recessed in the upper part of the door 2001. The structure of the upper hinge 31 can be the same as that of the first hinge 31 in the aforementioned embodiment, therefore, a detailed description thereof is omitted.

[0300] Furthermore, the lower hinge 33 can be fixedly installed on the bottom surface of the housing 1001 and axially connected to the lower end of the door 2001. The structure of the lower hinge 33 can be the same as that of the third hinge 33 in the aforementioned embodiment, therefore, a detailed description thereof is omitted.

[0301] Through the structure of the upper hinge 31 and the lower hinge 33, the hinge pin 313 can move relative to the door 2001 along the path 406 of the guide groove 400 when the door 2001 is opened and closed, and the rotation center of the door 2001 can move. Therefore, when the door 2001 is opened and closed, the door 2001 can operate in a way that does not interfere with the wall surface O, nor with the introduction or exit of adjacent doors 2001 or storage components.

[0302] On the other hand, the door 2001 can be formed in a shape corresponding to the front of the opening of the housing 1001. Furthermore, a door handle 2600 can be installed on the side of the door 2001 that is farther from the axis of rotation of the door 2001, thereby making the rotation operation of the door 2001 easier.

[0303] Figure 33 This is a perspective view of the hinge pin according to the seventh embodiment of this utility model. Figure 34 (A) is a perspective view of the pin body in this embodiment. Figure 34 (B) is a perspective view showing the state in which the pin body in this embodiment is provided with the first coating. Figure 35 (A) is a perspective view of the tube used in conjunction with the pin body in this embodiment. Figure 35 (B) is a diagram showing the state in which the tube in this embodiment is provided with a second coating.

[0304] Figure 36 This is a diagram illustrating the assembly process of the hinge pin in this embodiment. Figure 37 It is along Figure 33 A sectional view cut along line 37-37. Figure 38 yes Figure 37 An enlarged view of part A. Figure 39 (A) is Figure 38 An enlarged view of part B. Figure 39 (B) is a cross-sectional view based on the first pin of the deformed column.

[0305] As shown in the figure, the hinge pin 313 of the seventh embodiment of this utility model may include a pin body 1330. As an example, the pin body 1330 may be formed in a cylindrical shape. The hinge pin 313 may include the first pin 313a and the second pin 313b of the aforementioned embodiments, and the first pin 313a and the second pin 313b may be formed in the same shape. Furthermore, the remaining components, except for the hinge pin 313, may be the same as in the aforementioned embodiments.

[0306] The pin body 1330 can be formed of metal to ensure rigidity. As an example, the pin body 1330 can be formed of steel.

[0307] A flange 1332 (or an extension) may be provided on the outer surface of the pin body 1330. The flange 1332 may extend radially from the outer surface of the pin body 1330.

[0308] The pin body 1330 may include a first end 1330a and a second end 1330b.

[0309] The flange 1332 may be located closer to the second end 1330b than the first end 1330a.

[0310] The portion of the pin body 1330 including the first end 1330a can be accommodated in the guide groove 400. With a portion of the pin body 1330 accommodated in the guide groove 400, the flange 1332 can be located outside the guide groove 400.

[0311] The outer diameter of the pin body 1330 may be the same along its length. Alternatively, the pin body 1330 may include at least two parts with different outer diameters.

[0312] When the outer diameter of the pin body 1330 changes along the length direction, the outer diameter of the pin body 1330 can change with reference to the flange 1332 in the pin body 1330.

[0313] As an example, the pin body 1330 may include a first portion 1331a between the flange 1332 and the first end 1330a. The pin body 1330 may include a second portion 1331b between the flange 1332 and the second end 1330b.

[0314] The diameter of the first part 1331a may be larger than the diameter of the second part 1331b.

[0315] The first portion 1331a is inserted into the guide groove 400. The second portion 1331b may penetrate the hinge plate 310. Although not shown, a hole may be formed in the hinge plate 310 for the second portion 1331b to pass through.

[0316] In the first portion 1331a, a groove 1331c may be formed on the side of the first end 1330a. The groove 1331c can be recessed from the first end 1330a toward the second end 1330b.

[0317] When an external force is applied to the first end 1330a during the assembly of the hinge pin 313, the first part 1331a, including the groove 1331c, can be easily deformed.

[0318] The hinge pin 313 may further include a first coating 1340 (or an internal coating) disposed on the outer side of the pin body 1330. The first coating 1340 may be disposed on the outer surface of the first portion 1331a. The first coating 1340 may be bonded to the outer surface of the first portion 1331a.

[0319] As an example, the first coating 1340 can be formed of PTFE (polytetrafluoroethylene).

[0320] The first coating 1340 can reduce friction with the tube (or bushing) described later, and can also minimize wear even when friction occurs with the tube.

[0321] As an example, the thickness of the first coating 1340 can be from 0.5 mm to 0.8 mm.

[0322] The length of the first coating 1340 may be shorter than the length of the first portion 1331a. As an example, the outer surface of at least a portion of the groove 1331c in the first portion 1331a may not have the first coating 1340 formed.

[0323] The hinge pin 313 may further include a tube 1350 (or bushing) disposed on the outside of the pin body 1330. The tube 1350 may be formed in the shape of a hollow cylinder.

[0324] The tube 1350 can be made of metal to ensure rigidity. The material of the tube 1350 can be the same as or different from the material of the pin body 1330. As an example, the tube 1350 can be made of steel.

[0325] As an example, the tube 1350 may be configured to surround a first portion 1331a of the pin body 1330. The first portion 1331a may extend through the tube 1350.

[0326] The length of the first portion 1331a may be longer than the length of the tube 1350. With the first portion 1331a penetrating the tube 1350, at least a portion of the groove 1331c may be located outside the tube 1350.

[0327] The length of the tube 1350 may be the same as or different from the length of the first coating 1340.

[0328] The inner diameter Dp4 of the tube 1350 can be larger than the outer diameter Dp1 of the first portion 1331a. In particular, the inner diameter Dp4 of the tube 1350 can be larger than the outer diameter of the first portion 1331a, including the first coating 1340.

[0329] Reference Figure 10 In (A), with the first portion 1331a of the first coating 1340 extending through the tube 1350, a gap Gp may exist between the first coating 1340 and the inner surface of the tube 1350. As an example, the gap Gp may be from 0.003 mm to 0.01 mm.

[0330] Through the gap Gp between the first coating 1340 and the tube 1350, the tube 1350 can rotate relative to the pin body 1330.

[0331] When the tube 1350 rotates relative to the pin body 1330, the position of the portion of the first coating 1340 that rubs against the tube 1350 changes, thus preventing a specific portion of the first coating 1340 from concentrating on rubbing against the tube 1350.

[0332] In addition, the relative rotation between the tube 1350 and the pin body 1330 can reduce the vibration generated during the opening of the first door 21.

[0333] In this embodiment, since the first coating 1340 is provided between the tube 1350 formed of metal and the first portion 1331a, it has the advantage of minimizing direct friction between the tube 1350 and the first portion 1331a and reducing friction noise.

[0334] As another example, see Figure 10(B) A first coating 1340 may also be provided on the inner surface of the tube 1350. In this case, the first portion 1331a of the pin body 1330 may penetrate the tube 1350 provided with the first coating 1340.

[0335] A gap Gp1 may exist between the outer surface of the first coating 1340 and the first portion 1331a. As an example, the gap Gp1 may be from 0.003 mm to 0.01 mm.

[0336] In this modified example, since the first coating 1340 is provided between the tube 1350 formed of metal material and the first part 1331a, the direct friction between the tube 1350 and the first part 1331a can be minimized, and friction noise can be reduced.

[0337] The hinge pin 313 may further include a second coating 1360 (or external coating) disposed on the outer side of the tube 1350. The second coating 1360 may be disposed on the outer surface of the tube 1350. The second coating 1360 may be bonded to the outer surface of the tube 1350.

[0338] The first coating 1340 is a layer that rubs against a metal material, and the second coating 1360 is a layer that rubs against a non-metallic material. Therefore, the material of the second coating 1360 can be different from the material of the first coating 1340.

[0339] The second coating 1360 prevents direct friction between the metallic tube 1350 and the non-metallic guide member 40. For example, the second coating 1360 may be formed of TPU (thermoplastic polyurethane).

[0340] As an example, the thickness of the second coating 1360 can be from 0.5 mm to 0.8 mm.

[0341] In this invention, the thickness of one or more of the first coating 1340 and the second coating 1360 can be greater than the gaps Gp and Gp1.

[0342] The length of the second coating 1360 may be the same as or different from the length of the tube 1350.

[0343] When the second coating 1360 is provided on the outer surface of the tube 1350, not only can the direct friction between the tube 1350 and the guide member 40 be prevented, but the second coating 1360 can also contact or slide with the guide member 40, thus having the advantage of smooth relative movement between the second coating 1360 and the guide member 40.

[0344] In addition, since the second coating 1360 contacts or slides with the guide member 40, friction noise can be reduced, and since the second coating 1360 absorbs vibration, vibration noise can also be reduced.

[0345] The assembly process of the hinge pin 313 will be described below.

[0346] First, a first coating 1340 may be formed on the outer surface of the pin body 1330 or the inner surface of the tube 1350.

[0347] Additionally, the second coating 1360 can be formed on the outer surface of the tube 1350.

[0348] Next, the first portion 1331a of the pin body 1330 is made to penetrate the tube 1350. With the first portion 1331a of the pin body 1330 penetrating the tube 1350, the end of the tube 1350 can contact the flange 1332. The flange 1332 can restrict the movement of the tube 1350 along the length direction of the pin body 1330.

[0349] With the first part 1331a of the pin body 1330 penetrating the tube 1350, an external force F1 can be applied to the first end 1330a of the pin body 1330.

[0350] Then, by applying an external force F1, the portion of the first part 1331a in which the groove 1331c is formed can deform. As an example, the outer diameter of the portion of the first part 1331a in which the groove 1331c is formed can be increased, thereby forming an expansion portion 1330c.

[0351] The expansion portion 1330c can act as a flange, which can restrict the movement of the tube 1350 along the length direction of the pin body 1330 and prevent the tube 1350 from separating from the pin body 1330.

[0352] However, the expansion portion 1330c can be spaced apart from the end of the tube 1350 so that the tube 1350 can rotate relative to the pin body 1330. As an example, the distance between the flange 1332 and the expansion portion 1330c can be greater than the length of the tube 1350.

[0353] To prevent the tube 1350 from separating from the pin body 1330, the outer diameter Dp2 of the expansion portion 1330c can be larger than the inner diameter Dp4 of the tube 1350.

[0354] The outer diameter Dp5 of the tube 1350 can be larger than the outer diameter Dp2 of the expansion portion 1330c, so as to prevent the expansion portion 1330c from directly rubbing against the guide member 40 when the hinge pin 313 is accommodated in the guide groove 400.

[0355] In addition, the outer diameter Dp3 of the hinge pin 313 can be larger than the diameter of the expansion portion 1330c.

[0356] After the hinge pin 313 is assembled, the hinge pin 313 can be attached to the hinge plate 310.

[0357] With the second part 1331b of the hinge pin 313 penetrating the hinge plate 310, an external force F2 can be applied to the second end 1330b of the pin body 1330.

[0358] If an external force F2 is applied to the second end 1330b of the pin body 1330, the outer diameter of a portion of the second part 1330b can be increased, thereby forming an expansion portion 1333.

[0359] The hinge pin 313 can be attached to the hinge plate 310 via the expansion portion 1333.

[0360] In the above embodiments, the case where the first pin is attached to the hinge plate is described as an example. However, when the first pin is integrally formed with the hinge plate, the first pin may also include a first coating, a tube, and a second coating.

[0361] In this case, a first coating can be formed on the pin body extending from the hinge plate, and a tube with a second coating can be attached to the outside of the pin body with the first coating.

[0362] In the above embodiments, it is described that the first pin and the second pin respectively include a pin body, a first coating, a tube, and a second coating. However, it is also possible that either the first pin or the second pin includes a pin body, a first coating, a tube, and a second coating.

[0363] As another example, the first pin and the second pin can also be connected by a connecting member to form a single pin.

[0364] In this case, a portion of the first pin and a portion of the second pin inserted into the first slot may include a pin body, a first coating, a tube, and a second coating.

[0365] As another example, the first coating and tube can also be omitted, and the second coating (external coating) can be directly applied to the outer surface of the pin body.

[0366] Alternatively, a coating of the same material as the second coating may be provided on the inner surface of the guide member 40 that contacts the pin unit. That is, it is also possible to form a TPU (thermoplastic polyurethane) coating on one or more of the outer surfaces of the first pin and the second pin and on one or more of the inner surfaces of the guide member.

[0367] Figure 40 This is a diagram showing the configuration of the guide groove and hinge pin according to the eighth embodiment of the present invention. Figure 41 It is a diagram showing the relationship between the first path and the second path of the guide groove and the hinge pin. Figure 42 This is a diagram showing the guide groove of the first embodiment and the guide groove of the eighth embodiment of the present invention overlapping and comparing each other.

[0368] As shown in the figure, in the refrigerator of the eighth embodiment of this utility model, the other components, except for the shape of the guide groove, can be the same as those in the previous embodiments.

[0369] The refrigerator 1 of the eighth embodiment of this utility model can be installed adjacent to furniture or a wall O. When the refrigerator 1 is installed, it can be configured such that there is a predetermined interval between the side end of the refrigerator 1's body 10 or door 20 and the wall O.

[0370] Furthermore, interference between the door 20 and the wall O can be prevented by ensuring that the corner 21c formed by the front face 21a and side face 21b of the door 20 does not protrude into the wall O during the opening and closing of the door 20. Therefore, even if the refrigerator 1 is configured very close to or in contact with the wall O, the opening and closing of the door 20 can be ensured.

[0371] Therefore, the door 20 can be connected to the cabinet 10 using hinges 31, 32, and 33, and the hinge pins 313 of the hinges 31, 32, and 33 can guide the opening and closing of the door 20 when moving along the guide groove 400 of the door 20. Furthermore, the movement trajectory of the door 20 depends on the shape of the guide groove 400, thus preventing the door 20 from contacting the wall O when opening and closing. In particular, the shape of the guide groove 400 in this embodiment prevents the door 20 from protruding towards the wall O during opening and closing, thereby making the set interval G5 between the wall O and the refrigerator 1 0 or close to 0.

[0372] The guide groove 400 can be formed by continuously connecting a plurality of paths that form the path for the movement of the hinge pin 313. Each of the plurality of paths can be defined by an arc with a different center C. Furthermore, the plurality of paths can be defined by an arc with a center C at the point where the vertical lines extending from both ends of each path through the guide groove 400 intersect each other.

[0373] As an example, the guide groove 400 may include a first path 2401, a second path 2402, a third path 2403, a fourth path 2404, and a fifth path 2405. Furthermore, as... Figure 42 As shown, the shape of the guide groove 400 can be generally similar to that of the guide groove 400 in the aforementioned embodiment, and can provide a movement trajectory for the door 20 that does not interfere with the wall O when the door 20 is opened and closed. In this case, the portions of the guide grooves 400 and 2400 that are close to the side of the door 20 can be located in similar positions, while the portions away from the side 21b of the door 20 can be located relatively further away from the side 21b of the door 20. That is, by making the paths 2401 and 2402 of the guide groove 2400, which form the path for the hinge pin 313 to move during the initial opening of the door 20, further away from the side of the door 20, interference between the corner 21c of the door 20 and the wall O can be prevented during the initial opening of the door 20.

[0374] In detail, the overall extension direction of the first path 2401 to the fifth path 2405 in this embodiment can be similar to that of the first path 401 to the fifth path 405 constituting the guide groove 400 in the foregoing embodiment. Therefore, the specific shapes of the first path 401 to the fifth path 405 can be understood using the description of the foregoing embodiment.

[0375] However, the first path 2401 and the second path 2402 can be positioned further away from the side 21b of the door 20. Furthermore, the first path 2401 and the second path 2402 can also be positioned further away from the front of the door 20.

[0376] In particular, the distance D11 from the end of the guide groove 2400, i.e., the most forward-protruding end of the first path 2401, to the front surface 21a can be made smaller than the distance D7 from the most forward-protruding end of the first path 401 of the guide groove 400 in the aforementioned embodiment to the front surface 21a. Furthermore, the distance D12 from the most forward-protruding end of the first path 2401 to the side surface 21b can be made larger than the distance D8 from the most forward-protruding end of the first path 401 of the guide groove 400 in the aforementioned embodiment to the side surface 21b.

[0377] Furthermore, the distance D13 from the other end of the guide groove 2400, i.e., the most forward-protruding end of the fifth path, to the front surface 21a can be made larger than the distance D13 from the most forward-protruding end of the fifth path 405 of the guide groove 400 in the aforementioned embodiment to the front surface 21a. Also, the distance D14 from the most forward-protruding end of the fifth path 2405 to the side surface 21b can be made smaller than the distance D10 from the most forward-protruding end of the fifth path 405 of the guide groove 400 in the aforementioned embodiment to the side surface 21b.

[0378] With the configuration structure described above, the door 20 can more reliably ensure that it does not interfere with the wall O during the initial opening interval when the hinge pin 313 passes through the first path 2401 and the second path 2402, compared to the previous embodiment. That is, even when the side of the refrigerator 1 is very close to or in contact with the wall, the door 20 can be opened and closed without interfering with the wall O.

[0379] Furthermore, the lengths of the first path 2401 and the second path 2402 can be longer than those in the aforementioned embodiments. Additionally, the ratio of the length difference between the first path 2401 and the second path 2402 can be smaller.

[0380] Furthermore, due to the change in the positions of the first path 2401 and the second path 2402, the configuration of the third path 2403 and the fifth path 2405 can also be further away from the front 21a of the door 20 and closer to the side 21b of the door 20 than the positions of the third path 403 and the fifth path 405 in the aforementioned embodiment. However, relatively speaking, the positional changes of the third path 2403 to the fifth path 2405 are relatively small compared to the positional changes of the first path 2401 and the second path 2402. During the opening and closing of the door 20, when the opening angle of the door 20 is small, the corner 21c of the door 20 is more likely to come into contact with the wall O. This contact can be prevented by the shape of the first path 2401 and the second path 2402.

[0381] By varying the shape of the guide groove 400 as described above, the position of the center point C where the vertical lines extending from both ends of each path intersect each other via the guide groove 400 can also change. The center point C becomes the center point C of the arc defining each path.

[0382] Specifically, the center point C1 of the first path 2401 can be located in the inner region of the door 20, and can be located further back than the front 21a of the door 20. Furthermore, the center point C1 of the first path 2401 can be located between the center point C2 of the second path 2402 and the center point C3 of the third path 2403 in the left-right direction. Also, the center point C1 of the first path 2401 can be located between the center point C3 of the third path 2403 and the center point C4 of the fourth path 2404 in the front-back direction.

[0383] The center point C2 of the second path 2402 can be located in the outer region of the door 20, and can be located further forward than the front 21a of the door 20. Among the plurality of center points C, the center point C2 of the second path 2402 can be located at the foremost position. Furthermore, among the plurality of center points C, the center point C2 of the second path 2402 can be located at the position closest to the side 21b of the door 20.

[0384] The center point C3 of the third path 2403 can be located in the outer region of the door 20, and can be located further forward than the front 21a of the door 20. Furthermore, the center point C3 of the third path 2403 can be located between the center point C1 of the first path 2401 and the center point C4 of the fourth path 2404 in the left-right direction. Also, the center point C3 of the third path 2403 can be located between the center point C1 of the first path 2401 and the center point C2 of the second path 2402 in the front-back direction.

[0385] The center point C4 of the fourth path 2404 can be located in the inner region of the door 20, and can be located further back than the front 21a of the door 20. Furthermore, the center point C4 of the fourth path 2404 can be located between the center point C3 of the third path 2403 and the center point C4 of the fifth path 2405 in the left-right direction. Also, the center point C4 of the fourth path 2404 can be located between the center point C1 of the first path 2401 and the center point C5 of the fifth path 2405 in the front-back direction.

[0386] The center point C5 of the fifth path 2405 can be located in the inner region of the door 20, and can be located further back than the front 21a of the door 20. Furthermore, among the plurality of center points C, the center point C5 of the fifth path 2405 can be located at the furthest point. Also, among the plurality of center points C, the center point C5 of the fifth path 2405 can be located at the position furthest from the side 21b of the door 20.

[0387] On the other hand, such as Figure 41As shown, when the door 20 is closed, the first pin 131a and the second pin 131b can be located on the first path 2401. At this time, the center Pc of the second pin 131b can be located at a position separated from the intersection P of the vertical lines extending to define the first path 2401 and the second path 2402, and can be located on the first path 2401.

[0388] Furthermore, when the door 20 is closed, the contact point P3 of the second pin 131b that contacts the inner surface of the guide groove 400 can be located at a position separated from the boundary P4 connecting the first path 2401 and the second path 2402, and can be located on the first path 2401.

[0389] Therefore, if the door 20 is opened while it is closed, the second pin 131b can enter the second path 2402, and the rotation of the door 20 begins as the movement paths of the first pin 131a and the second pin 131b change.

[0390] Furthermore, the corner 21c formed by the front 21a and side 21b of the door 20 can be formed in a prescribed arc shape or a sloped shape. The shape of the corner 21c can provide the trajectory of the door 20 provided by the action of the hinge pin 313 moving along the guide groove 400, and ensure that the door 20 does not interfere with the wall O during opening and closing.

[0391] The opening and closing process of the door 20 of the refrigerator 1 having the structure described above will be explained below with reference to the accompanying drawings.

[0392] Figure 43 Figures (a) to (d) are diagrams showing the movement of the hinge pins as the door opens at different angles.

[0393] like Figure 43 As shown in (a), when the door 20 is closed, the first pin 313a and the second pin 313b can be located in the first path 2401 of the guide groove 400. At this time, the side of the refrigerator 1, that is, the side 21b of the door 20, is in a state of proximity to the wall O, that is, configured to be very close or in contact with the wall O.

[0394] like Figure 43As shown in (b), if the door begins to open, the first pin 313a moves along the first path 2401, and the second pin 313b moves along the second path 2402. That is, the first pin 313a and the second pin 313b can move along the first path 2401 and the second path 2402, and can form the movement trajectory of the door 20 with the center points C1 and C2 of the first path 2401 and the second path 2402 as a reference. At this time, the corner 21c of the door 20 will not protrude more than the extension line L0 of the initial side position of the door 20.

[0395] like Figure 43 As shown in (c), if the door 20 is further opened, the first pin 313a enters the third path 2403, and the second pin 313b enters the fourth path 2404. The movement trajectory of the door 20 can be formed with the center points C3 and C4 of the third path 2403 and the fourth path 2404 as references, thereby moving the corner 21c of the door 20 further away from the extension line L0.

[0396] like Figure 43 As shown in (d), if the door 20 is further opened, the first pin 313a enters the fourth path 2404, and the second pin 313b enters the fifth path 2405. The movement trajectory of the door 20 can be formed with the center points C4 and C5 of the fourth path 2404 and the fifth path 2405 as references, so that the corners 21c of the door 20 can be maximized to be separated from the extension line L0.

[0397] In the state described above, the door 20 can be further opened until the second pin 313b is located at the end of the fifth path 2405. Furthermore, if the door 20 is closed while it is open, the operation is performed in the reverse order of the aforementioned process; similarly, when the door 20 is closed, it will not interfere with the wall O.

[0398] As described above, during the opening of the door 20, the door 20 will not protrude beyond the extension line L0 toward the wall O, thus preventing interference with the wall O. Furthermore, even when the refrigerator 1 is configured to be very close to or in contact with the wall O, the door 20 can be opened and closed smoothly.

Claims

1. A refrigerator characterized by comprising: Comprising: a cabinet forming a storage space; a door opening and closing the storage space; a hinge including a hinge plate installed to the cabinet and a first pin and a second pin protruding from the hinge plate and connected to the door; and a guide groove provided to the door, into which the first pin and the second pin are inserted, guiding the movement of the first pin and the second pin when the door is rotated; the guide groove is formed by connecting a plurality of paths extending in different directions from each other in series; the first pin and the second pin move in different paths from each other among the plurality of paths when the door is rotated.

2. The refrigerator according to claim 1, wherein: in a stopped state in which the door is closed, the first pin and the second pin are located in a first path among the plurality of paths.

3. The refrigerator according to claim 2, wherein: in a stopped state in which the door is closed, the first pin is located in the first path, the second pin is located at a boundary of the first path and a second path connected to the first path, the second pin enters the second path while the door is opened.

4. The refrigerator according to claim 2, wherein: the first pin and the second pin are arranged to be spaced apart from each other in a forward direction and a lateral direction, an extension line connecting the centers of the first pin and the second pin is directed in the same direction as an extension line connecting both ends of the first path.

5. The refrigerator according to claim 1, wherein: a guide member is installed to the door, the guide groove is opened on one side of the guide member and exposed to the outside of the door.

6. The refrigerator according to claim 1, wherein: an arc portion having a smaller radius than the diameters of the first pin and the second pin is formed between paths connecting paths adjacent to each other among the plurality of paths.

7. The refrigerator according to claim 1, wherein: the widths of the plurality of paths correspond to the diameters of the first pin and the second pin, the first pin and the second pin are in contact with the paths during movement.

8. The refrigerator according to claim 1, wherein: the plurality of paths are defined by a plurality of circular arcs having centers at points at which perpendicular lines passing through both ends of each path intersect each other.

9. The refrigerator according to claim 1, wherein: a first relief portion recessed more than the position of the first pin in a state in which the door is closed is formed at one end portion of the guide groove, a second relief portion recessed more than the position of the second pin in a state in which the door is opened to the maximum is formed at the other end portion of the guide groove.

10. The refrigerator according to claim 1, wherein: an access hole through which an electric wire or a pipe passes is opened between the front surface of the door and the guide groove, at least a portion of the access hole is arranged in a region recessed between one end and the other end of the guide groove. ​

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