JP6236623B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly to a door support structure of a refrigerator.

  Generally, a refrigerator is provided with a refrigerator compartment, a freezer compartment, a vegetable compartment, etc. in a refrigerator main body having heat insulation properties, and these refrigerator compartments, freezer compartments, vegetable compartments, etc. can be opened and closed by doors.

  The door is between a front plate that is the front of the refrigerator body, an inner box that is an inner surface of a refrigerator compartment, a freezer compartment, a vegetable compartment, etc., and a frame that integrally connects the front plate and the inner box. Urethane is filled and foamed so as to have a heat insulating property similar to the refrigerator main body.

  In such a refrigerator, a glass plate is used as the front plate of the door in order to improve the appearance.

  However, the refrigerator with the door surface made of such a glass plate is heavy in door weight, and in addition, the load due to the enlargement of the door itself, which is a recent trend, and the load of food stored in the door pocket provided on the inner surface are added. As a result, deformation or the like occurs in the hinge mounting portion that supports the door, and there is a problem that the door is lowered during long-term use.

  In conventional refrigerators to solve such problems, a reinforcing plate is additionally installed in the hinge mounting portion of the refrigerator body to improve the strength of the hinge mounting portion and prevent deformation of the hinge mounting portion to deform the hinge mounting portion. And those that prevent the door from falling (see, for example, Patent Document 1).

  FIG. 11 shows the door support structure of the refrigerator described in the above-mentioned Patent Document 1. In this refrigerator, a reinforcing plate 104 is provided on the rear surface of the front partition plate 103 on the front surface of the partition wall 102 to which the hinge fitting 101 is attached and fixed, and the partition is formed. The strength of the front plate 103 is improved, and the hinge fitting 101 is fixed to the reinforcing plate 104 with screws 105. As a result, the load of the food stored in the door 106 and the door pocket is supported by the reinforcing plate 104, and the deformation of the front partition plate 103 serving as the hinge mounting portion and the door lowering are reduced. . In the figure, reference numeral 107 denotes a heat insulating material provided at the front end of the partition wall 102.

Japanese Patent Laid-Open No. 11-14242

  However, in the above conventional configuration, a reinforcing plate 104 is provided so as to span the entire width of the front partition plate 103 of the refrigerator partition wall 102, and parts for attaching the reinforcing plate 104 to the rear surface of the front partition plate 103 of the partition wall 102 are required. For example, the number of parts increased, resulting in an increase in cost, an increase in assembly man-hours, a decrease in productivity, and an increase in product weight of the refrigerator.

  The present invention has been made in view of these points, and an object of the present invention is to provide a refrigerator that can prevent deformation of the hinge mounting portion and door lowering at low cost without increasing the product weight and the number of assembly steps.

To achieve the above object, the present invention provides a refrigerator main body, a partition wall for partitioning the inside of the refrigerator main body, a hinge metal fitting attached over the side wall front end surface of the refrigerator main body and the front end surface of the partition wall, and the hinge metal fitting A door that opens and closes a partition wall upper storage chamber of the refrigerator main body that is rotated about a hinge axis of the refrigerator and is partitioned by the partition wall, and a lower partition wall of the refrigerator body that is positioned below the door and is partitioned by the partition wall A lower door that opens and closes the storage room, and the hinge bracket has a hinge shaft that serves as a rotation center of the door and supports the door, a front end face of the side wall of the refrigerator body, and the partition wall The lower door packing attached to the front end surface of the lower door and attached to the inner surface of the lower door and the fixed piece portion having a vertical width dimension that does not overlap with each other. Side edge of door packing Which was provided with a protruding piece that extends downwardly along the refrigerator body sidewall front end surface of the lateral side walls of the refrigerator body, an exterior plate made of a metal plate, an inner box made of a storage compartment wall, these The exterior plate has a heat radiating pipe disposed at the inner corner of the front end surface of the side wall by forming a folded overlap portion by bending the front end surface of the side wall at the front end thereof. The protruding piece portion of the hinge fitting located beside the side end surface of the lower door packing is disposed on the front end surface of the refrigerator main body side wall across the folded overlap portion and the heat radiating pipe.

  As a result, the vertical width dimension of the fixed part of the hinge fitting that receives the load of the door and food is increased by the protruding piece part, thereby increasing the load receiving area of the side wall of the refrigerator main body to which the fixed part is attached and fixed. The hit load is reduced, and deformation of the hinge mounting portion and door falling can be prevented. In addition, according to this configuration, the load on the unit area can be reduced without causing a hindrance to securing airtightness by deforming the projecting piece of the hinge bracket against the lower door packing of the lower door, and the position of the projecting piece can be reduced. Since the front end face of the refrigerator side wall next to the lower door packing side end face is a corner part, it has high strength, so it can effectively deform the hinge mounting part and lower the door without damaging the cooling performance. Can be prevented.

  The present invention prevents the deformation of the hinge mounting portion and the door without increasing the number of assembly steps and the product weight by using the reinforcing member for preventing the deformation, or deforming the door packing and hindering the cooling performance. The refrigerator can be prevented from falling, and can be provided at low cost and with high productivity.

External appearance perspective view of the refrigerator in Embodiment 1 of this invention Cross section of the refrigerator Perspective view showing one of the doors of the refrigerator Exploded perspective view of the refrigerator door AA sectional view of FIG. BB sectional view of FIG. Front view showing hinge bracket mounting part of the refrigerator CC sectional view of FIG. Perspective view showing hinge fitting of the refrigerator (A) Top view of hinge fitting, (b) Front view, (c) Side view Sectional drawing which shows the door support structure of the conventional refrigerator

A first invention includes a refrigerator body, a partition wall that partitions the interior of the refrigerator body, a hinge bracket that is attached across the front end surface of the side wall of the refrigerator body and the front end surface of the partition wall, and a hinge shaft of the hinge bracket. A door which opens and closes a partition wall upper storage chamber of the refrigerator main body which is rotated by the center and is partitioned by the partition wall, and a partition wall lower storage chamber of the refrigerator main body which is located below the door and is partitioned by the partition wall. The hinge bracket has a hinge shaft that serves as a rotation center of the door and supports the door, a door support piece that supports the door, a side wall front end surface of the refrigerator body, and a front end surface of the partition wall The lower door packing that is fixedly attached and mounted on the inner surface of the lower door and the fixed piece portion that has a vertical width dimension that does not overlap, and the lower edge of the side of the fixed piece portion is on the side of the lower door packing The refrigerator book next to the end face Which was provided with a protruding piece that extends downwardly along the side wall front end surface, the side wall portion of the refrigerator body, an exterior plate made of a metal plate, an inner box made of a storage compartment wall, provided between these two The outer cover plate has a heat radiating pipe disposed at the inner corner portion of the side wall front end surface by bending a side wall front end surface at a front end thereof to form a folded overlap portion, and the lower door packing. The protruding piece portion of the hinge fitting located beside the side end face is disposed on the front end face of the refrigerator main body side wall across the folded overlap portion and the heat radiating pipe.

  As a result, the vertical width dimension of the fixed part of the hinge fitting that receives the load of the door and food is increased by the protruding piece part, thereby increasing the load receiving area of the side wall of the refrigerator main body to which the fixed part is attached and fixed. The hit load is reduced, and deformation of the hinge mounting portion and door falling can be prevented. In addition, according to this configuration, the load on the unit area can be reduced without causing a hindrance to securing airtightness by deforming the projecting piece of the hinge bracket against the lower door packing of the lower door, and the position of the projecting piece can be reduced. Since the front end face of the side wall of the refrigerator body next to the end face of the lower door packing is a corner part, it has high strength, so it can effectively prevent deformation of the hinge mounting part and lower the door without using a reinforcing member or impairing cooling performance. Can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is an external perspective view of the refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of the refrigerator, FIG. 3 is a perspective view showing one of the doors of the refrigerator, and FIG. 4 is an exploded view of the refrigerator door. 5 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 6 is a cross-sectional view taken along the line BB in FIG.

1 and 2, the refrigerator body 1 is made of a metal (for example, iron plate) outer box 2 that opens forward.
And an inner box 3 made of hard resin (for example, ABS) and a hard foamed urethane 4 filled between the outer box 2 and the inner box 3 by foaming. The refrigerator main body 1 is partitioned into a plurality of storage rooms called a refrigerator compartment, an ice making room, a freezer compartment, a vegetable compartment etc. by partition walls 5, 6, 7, and a partition wall called a refrigerator compartment The front surface of the upper storage room 8 is closed freely by, for example, a double door 9 and the front part of the partition wall lower storage room 10 called an ice making room, a freezer room, a vegetable room or the like is a drawer type door 11, 12. , 13 and 14 are freely closed.

  There is a cooling chamber 16 on the back surface of the refrigerator body 1, and a cooler 17 that generates cool air and a blower fan 18 that supplies the cool air to each chamber are provided. Further, a compressor 19 is provided at the back of the main body top of the refrigerator main body 1, and a condenser (not shown), a heat radiating pipe 20, a capillary tube 21, and the cooler 17 described above are sequentially annular. A refrigerant is enclosed in a refrigeration cycle connected to the refrigeration cycle to perform a cooling operation.

  Here, the doors 9 and 11 to 14 are foamed and filled with hard urethane like the refrigerator main body 1 to provide heat insulation, and the front surface is made of a glass plate to further improve the design. .

  Hereinafter, the structure of the double doors 9 will be briefly described with reference to FIGS. The doors 11 to 13 other than the door 9 have the same configuration.

  3-6, 23 is a door inner box which will be located inside the refrigerator main body 1, and is formed, for example with ABS resin. Reference numeral 24 denotes an edge frame bonded and fixed to the peripheral end surface of the door inner box 23, and is formed of ABS resin. Reference numeral 25 denotes a glass plate laminated on the edge frame 24 so as to cover the door inner box 23. In this embodiment, a glossy tempered glass plate is used.

  As shown in FIG. 6, the glass plate 25 has a resin film 26 attached to the inner surface thereof with an adhesive, and a colored layer made of a metallic pattern such as a picture pattern, for example, a hairline, is attached to the resin film 26. It is formed. As a result, the glass plate 25 becomes a glass plate with a colored layer. In this embodiment, the resin film 26 is made of polyethylene terephthalate having high transparency and high mechanical strength.

  Reference numeral 27 denotes a foam heat insulating material made of hard foamed urethane or the like filled in a space between the surface of the glass plate 25 on the side of the resin film 26 and the door inner box 23 and the edge frame 24. 24 is bonded to the resin film 26 on the inner surface of the glass plate 25, and the glass plate 25 is bonded and held via the resin film 26.

  Among the doors configured as described above, the double door 9 that opens and closes the partition wall upper storage chamber of the refrigerator main body 1 is pivotally attached to the refrigerator main body 1 at one end thereof, and the attachment configuration is shown in FIGS. This will be described with reference to FIG.

  7 is a front view of a hinge fitting attachment portion of the refrigerator main body to which the door 9 is attached, FIG. 8 is a sectional view taken along the line CC of FIG. 7, FIG. 9 is a perspective view of the hinge fitting, and FIG. (B) is a front view, (c) is a side view.

  7 and 8, the partition wall 5 of the refrigerator body 1 partitions the interior of the refrigerator body 1 into the partition wall upper storage chamber 8 and the partition wall lower storage chamber 10 as described above, and the front end face 28 is made of metal. It is made of sheet metal.

On the other hand, the refrigerator body 1 bends the front end of the metal outer plate 29 forming the outer box 2 toward the front end face 28 of the partition wall 5 to form a side wall front end face 30, and the edge of the side wall front end face 30 is Is folded back along the inner side of the front end face 30 of the side wall, and the edge is bent inward to form the folded overlap portion 31 and the folded overlap portion 32 integrally. The end portion of the partition wall front end face 28 and the partition wall fixing piece 33 are sandwiched and fixed between the folded overlap portion 31 and the folded overlap portion 32. Further, the inside of the exterior plate 29 is filled with a foam heat insulating material 27 to form the side wall portion of the refrigerator main body 1, and the inside of the front end face 28 of the partition wall 5 is filled with a heat insulating material 34 made of foamed polystyrene or the like to be insulated. Sex is secured.

  Further, a radiating pipe 35 serving as a part of the radiating pipe 20 through which the cooling refrigerant passes is provided at a bent corner portion of the side wall front end face 30 of the refrigerator body 1, and the radiating pipe 35 is formed on the side wall front end face 30. It is arranged vertically along the inner surface of the corner.

  A hinge bracket 36 rotatably supports the door 9 and is attached and fixed across the front end face 28 and the side wall front end face 30 of the partition wall 5 of the refrigerator main body 1. As shown in FIGS. 9 and 10, the hinge fitting 36 is formed in a substantially L shape, and has a pin shaft 37 that rotatably supports the door 9, and a door support piece that supports the door 9. Part 38 and a fixed piece part 39 connected thereto, and the fixed piece part 39 is fixed by fixing screws 40 and 41 over the partition wall front end face 28 and the side wall front end face 30 of the refrigerator body as shown in FIG. It is.

  Further, as shown in FIG. 7, the fixed piece portion 39 of the hinge fitting 36 has a vertical width dimension that does not overlap with the lower door packing 43 attached to the inner surface of the lower door 12 that opens and closes the partition wall lower storage chamber 10, and In addition, a projecting piece portion 44 extending downward along the refrigerator body side wall front end surface 30 beside the side end surface of the lower door packing 43 is provided at the lower end edge of the side portion of the fixed piece portion 39.

  Next, the function and effect of the above configuration will be described.

  The door 9 is supported by a hinge fitting 36 so that the upper partition wall storage chamber 8 can be opened and closed. However, the load of food stored in the door 9 and the door pocket is applied to the door support piece 38 of the hinge fitting 36, and this load is applied. Is received by the partition wall front end face 28 and the side wall front end face 30 of the refrigerator body 1 to which the fixed piece 39 is attached and fixed. Therefore, the load of the food stored in the door 9 and the door pocket is applied to the partition wall front end face 28 and the side wall front end face 30 of the refrigerator body 1 to which the fixing piece 39 of the hinge metal fitting 36 is fixed.

  This load can reduce the load per unit area by increasing the vertical dimension of the fixed piece 39 of the hinge bracket 36, and the partition wall front end face 28 and the side wall of the refrigerator body 1 to which the fixed piece 39 is fixed. Although the front end face 30 can be prevented from being deformed and the door is lowered, the partition wall lower storage chamber 10 is opened and closed on the partition wall front end face 28 and the side wall front end face 30 of the refrigerator main body 1 to which the fixed piece 39 of the hinge fitting 36 is attached. Since the lower door packing 43 of the lower door 12 is opposed to the lower door packing 12, the upper and lower dimensions must be set so as not to overlap with the lower door packing 43. If the lower door packing 43 overlaps with the lower door packing 43, the lower door packing 43 abuts against the fixed piece 39 of the hinge bracket 36 to damage the magnet stored in the lower door packing 43, or The airtightness due to the packing 43 is lowered and the cooling performance is impaired.

  Therefore, the load per unit area applied to the partition wall front end face 28 and the side wall front end face 30 of the refrigerator main body 1 through the fixed piece portion 39 of the hinge metal fitting 36 becomes large, and the glass plate 25 can be used over a long period of use. The front end face 28 of the partition wall and the front end face 30 of the side wall of the refrigerator body 1 are deformed without being able to withstand the load of the door 9 using food and the load of food stored in the door pocket, and the door is lowered.

However, according to the configuration of the refrigerator described above, the side lower end edge of the fixed piece portion 39 of the hinge metal fitting 36 that supports the door 9 is along the front end surface 30 on the side wall of the lower side of the lower door packing 43. Since the protruding piece portion 44 extending downward is provided, the vertical width of the fixed piece portion 39 of the hinge bracket 36 that receives the load of the door 9 is increased by the protruding piece portion 44, and the front end of the side wall of the refrigerator main body attached and fixed thereto. The load receiving area of the surface 30 is increased, and the load per unit area is reduced accordingly, so that deformation of the hinge mounting portion and door lowering can be prevented.

  In addition, according to this configuration, the protruding piece 44 of the hinge metal fitting 36 is provided so as to avoid the lower door packing 43 of the lower door 12, so that the lower door packing 43 of the lower door 12 is deformed. Since the load per unit area can be reduced without impeding airtightness, and the front end surface 30 on the side wall of the refrigerator main body side wall of the lower door packing 43 where the projecting piece 44 is located is a corner portion. The strength is high, and deformation of the hinge mounting portion and door lowering can be effectively prevented without using a reinforcing member or impairing cooling performance.

  The side wall front end face 30 of the refrigerator main body 1 is formed by bending the front end of the exterior plate 29 and the edge of the side wall front end face 30 is further folded and polymerized along the inside of the side wall front end face 30. Therefore, the strength of the front end surface of the side wall of the refrigerator main body 1 to which the protruding piece 44 of the hinge metal fitting 36 hits can be improved, and the prevention of deformation of the hinge mounting portion and the prevention of door lowering can be realized more reliably.

  Further, a heat radiating pipe 35 through which a cooling refrigerant passes is provided on the inner surface of the side wall front end face 30 of the refrigerator main body 1, and the heat radiating pipe 35 is a projecting piece portion of a hinge fitting 36 located beside the side end face of the lower door packing 43. 44, the strength of the side wall front end face 30 of the refrigerator main body 1 against which the projecting piece 44 hits can be improved by using the heat radiating pipe 35. Deformation of the hinge mounting portion and door lowering can be reliably prevented.

  And the intensity | strength of the refrigerator main body side wall front end surface 30 which the projection piece part 44 of the hinge metal fitting 36 hits double by the folding | returning superimposition part 31 formed along the inner side of the said refrigerator main body side wall front end surface 30 and the heat radiating pipe 35 is improved. Therefore, it is possible to more reliably prevent the hinge mounting portion from being deformed and prevent the door from being lowered.

  In addition, although the said embodiment demonstrated the thing which provided the folding | superposition superposition | polymerization part 31 in the side wall front end surface 30 of the refrigerator main body 1 and arrange | positioned the heat radiating pipe 35, these may have only any one. It is.

  As described above, according to the present invention, there is no need to increase the number of assembly steps and the product weight by using the reinforcing member for preventing deformation, or to deform the door packing so as not to hinder the cooling performance. It can prevent deformation and door fall, and can be made into an inexpensive and highly productive refrigerator, and can be widely applied to commercial refrigerators and wine coolers as well as general ones.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 5, 6, 7 Partition wall 8 Partition wall upper storage room 10 Partition wall lower storage room 9, 11, 12, 13, 14 Door 12 Lower door 25 Transparent front plate (glass plate)
27 Foam insulation 28 Front end face (partition wall front end face)
29 exterior plate 30 side wall front end face (refrigerator body side wall front end face)
31 Folding overlapping part 32 Folding overlapping part 33 Partition wall fixing piece 34 Heat insulating material 35 Heat radiating pipe 36 Hinge bracket 37 Pin shaft 38 Door supporting piece part 39 Fixed piece part 40, 41 Screw 43 Lower door packing 44 Projecting piece part

Claims (1)

A refrigerator main body, a partition wall for partitioning the inside of the refrigerator main body, a hinge fitting attached across the front end face of the side wall of the refrigerator main body and the front end face of the partition wall, and rotating about the hinge axis of the hinge fitting A door that opens and closes a partition wall upper storage chamber of the refrigerator body partitioned by the partition wall, and a lower door that is positioned below the door and opens and closes the partition wall lower storage chamber of the refrigerator body partitioned by the partition wall The hinge bracket has a hinge shaft that serves as a rotation center of the door, and is fixed to the door support piece portion that supports the door, the front end surface of the side wall of the refrigerator body, and the front end surface of the partition wall, and the lower The refrigerator main body is composed of a lower door packing attached to the inner surface of the door and a fixed piece portion that has a vertical width dimension that does not overlap, and a side lower end edge of the fixed piece portion is next to a side end surface of the lower door packing. On the front edge of the side wall Which it was provided with a protruding piece that extends downwardly I, the side wall portion of the refrigerator body, an exterior plate made of a metal plate, an inner box made of a storage compartment wall, a foam insulating material provided between both of them And the exterior plate has a heat radiating pipe disposed at the inner corner portion of the side wall front end surface by bending a side wall front end surface at a front end thereof to form a folded overlap portion, and laterally facing the side surface of the lower door packing. The protruding piece portion of the hinge fitting located in the refrigerator is disposed on the refrigerator body side wall front end surface across the folded overlap portion and the heat radiating pipe .

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