JP3666101B2 - Hinge device for refrigerator and method for processing hinge device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hinge device for holding a refrigerator door of a refrigerator in a refrigerator body so as to be freely opened and closed.
[0002]
[Prior art]
6 to 8 are views relating to a hinge device that supports a refrigerator door of a conventional refrigerator, FIG. 6 is a perspective view of a main part of the hinge device that supports the refrigerator door provided in the refrigerator body, and FIG. 7 is a side view of the hinge portion. FIG. 8 is a side view and a front view of the hinge portion.
[0003]
In the figure, reference numeral 2 denotes a refrigerator door of the refrigerator body, which covers the front opening of the refrigerator body. Reference numeral 9 denotes a door packing component attached to the inner periphery of the refrigerator door 2. Reference numeral 10 denotes a part of the refrigerator main body, a partition part that partitions the front face into several rooms, 3 an upper hinge that supports the refrigerator door 2, and 4 a lower hinge that supports the refrigerator door 2 and faces the upper hinge 3. Reference numeral 7 denotes a protrusion-shaped portion of the lower hinge 4. The lower hinge 4 is fastened to the partition part 10 with screws 11. 8 is a cap part which comprises the lower surface of the refrigerator door 2. As shown in FIG. Reference numeral 12 denotes a bearing portion provided with a lock component 14, which is attached to the cap component 8 and is engaged with the lower hinge 4. In addition, shelves and pockets for storing food are attached to the handle parts and the inside of the door. Reference numeral 13 denotes a refrigerator lower door located below the refrigerator door.
[0004]
A hinge portion provided to support a conventional refrigerator door is configured as described above, and the refrigerator door 2 is supported by an upper hinge 3 and a lower hinge 4 fixed to the refrigerator main body by screws 11, and the hinge of the lower hinge 4. The shaft 6 is opened and closed with the center of rotation. When the refrigerator door 2 is closed, the protrusion-shaped part 7 of the lower hinge 4 and the lock part 14 of the bearing part 12 are engaged.
[0005]
[Problems to be solved by the invention]
In the hinge device that supports the refrigerator door of the conventional refrigerator as described above, when the storage amount of the refrigerator door pocket or the like increases, it is necessary to increase the hinge strength, and the plate thickness of the hinge is increased. Then, in FIG. 7, the plate thickness of the projection-shaped portion 7 of the lower hinge 4 in which the applied load is smaller than that of the lower hinge 4 main body portion is also thickened similarly to the lower hinge 4 main body, and thus the screws 11 for fixing to the partition 10. 7 is projected in the direction of the arrow in FIG. 7 when a position 15 of the screw fastening tool size is projected onto the hinge part, and when a fastening space for the screw 11 is secured, the distance from the shaft portion of the hinge receiving the load to the screw fastening portion. Becomes larger and disadvantageous in strength. FIG. 8 is also a side view and a front view of the lower hinge 4 according to the conventional shape, but when the position of the screw 11 is indicated by a projection 15 on the hinge part of the screw fastening tool size, it is moved in the direction of the arrow in FIG. If the fastening space for the screw 11 is secured, the lower hinge 4 main body becomes large and interferes with the door packing parts 9 that are attached to the top and bottom of the hinge. Therefore, there is a problem that the door space must be widened and the design is impaired. It was. There is also a method of attaching parts with different plate thicknesses, but there are problems such as requiring separate parts and man-hours for attachment. Therefore, to provide a hinge having a hinge device that has a sufficiently strong hinge with respect to an increase in door storage capacity, a small installation space, a small door interval, a small number of parts, and a design excellent hinge device according to market demands. Another object is to improve the workability of hinge mounting.
[0006]
[Means for Solving the Problems]
The hinge device for supporting the refrigerator door of the refrigerator according to the first aspect of the present invention is a hinge device for holding the refrigerator door of the refrigerator in the refrigerator main body so that the refrigerator door is openable and closable. A hinge part having a lock part to be engaged and a bearing part provided on the refrigerator door side, and a protruding part of a hinge part that engages the lock part and fixes the refrigerator door in the closed state of the refrigerator door The protrusion-shaped part is formed thinner than the hinge part main body engaging with the bearing part, and the lock part is formed thicker than the protrusion-shaped part of the hinge part.
[0007]
In the hinge device for supporting the refrigerator door of the refrigerator according to the second aspect of the present invention, the lock component is made of a polymer material.
[0008]
The processing method of the hinge device for supporting the refrigerator door of the refrigerator according to the third aspect of the present invention includes a step of forming the projection shape portion of the hinge part by crushing and forming the hinge part using a continuous mold. is there.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 of the Invention
1 to 5 are views showing an example of an embodiment of the present invention. FIG. 1 is a refrigerator box body, FIG. 5 is a side view (left side) and a front view (right side) of a hinge portion, and FIG. The refrigerator door 2 is supported by an upper hinge 3 and a lower hinge 4 fixed to the refrigerator main body 1 with screws 11, and opens and closes with the hinge shaft 6 of the lower hinge 4 as the center of rotation. FIG. 3 is a perspective view of a main part of the hinge device in a state where the refrigerator door 2 is closed. When the refrigerator door 2 is closed, the protruding shape portion 7 of the lower hinge 4 and the key shape lock portion 14 of the bearing portion 12 are engaged. The self-closing force of the door is generated by the elastic force of the lock component 14. For example, the self-closing force is the force that prevents the door from repelling (opening the door) when the door is closed forcefully, and the pressure in the door (inside the cabinet) increases when the door is closed, There is a force to prevent the air from moving into (inside the chamber), increasing the pressure in the door (inside the chamber) and opening the door. FIG. 4 shows a bearing portion 12 provided with a lock component 14, and the bearing portion 12 is made of a polymer material. The same parts as those of the conventional apparatus are denoted by the same reference numerals.
[0010]
In the figure, reference numeral 1 denotes a refrigerator body, which has an outer shell made up of lower sheet metal parts and the like, and is manufactured by filling an internal space with a heat insulating material such as urethane foam. Reference numeral 2 denotes a refrigerator door of the refrigerator body 1 that covers the front opening of the refrigerator body 1. The refrigerator door 2 has a shell made of sheet metal parts, plastic parts, and the like, and is filled with a heat insulating material such as urethane foam. Reference numeral 9 denotes a door packing component attached to the inner periphery of the refrigerator door 2. Reference numeral 10 denotes a part of the refrigerator main body 1, a partition part that partitions the front into several rooms, 3 an upper hinge that supports the refrigerator door 2, and 4 a lower hinge that supports the refrigerator door 2 and faces the upper hinge 3. Are formed by bending a sheet metal part. Reference numeral 7 denotes a protrusion-shaped portion of the lower hinge 4, which is integrally formed with the lower hinge 4 by caulking from the hinge shaft 6 to the refrigerator door handle side. The lower hinge 4 is fastened to the partition part 10 with screws 11. 8 is a cap part which comprises the lower surface of the refrigerator door 2, and is shape | molded with the plastics. Reference numeral 12 denotes a bearing portion provided with a lock part 14 formed of a polymer material such as plastic, and is attached to the hinge side of the cap part 8. The lock part 14 of the bearing part 12 is connected to the protruding shape part 7 of the lower hinge 4. It is a key shape whose angle is adjusted to engage. In addition, shelves and pockets for storing food are attached to the handle parts and the inside of the door. Reference numeral 13 denotes a refrigerator lower door located below the refrigerator door.
[0011]
FIG. 5 is a side view (left view) and a front view (right view) of the lower hinge 4 according to the present invention, and 15 is a projection of the tool size used for fastening the screw 11.
When the storage capacity of the refrigerator door pocket or the like increases, the strength of the lower hinge 4 needs to be increased. When the plate thickness of the lower hinge 4 is increased, the plate thickness of the protrusion-shaped portion 7 of the lower hinge 4 is also increased. However, since the load applied to the projection-shaped portion 7 is smaller than that of the hinge main body portion, the required strength can be maintained even if it is formed to be somewhat thinner than the lower hinge 4 main body. By forming the projection-shaped portion 7 thinly, as shown in the front view of FIG. 5, it does not interfere with the projection of the screw fastening tool, so there is no need to attach a new part, and a sufficient space for fastening the screw 11 can be secured. . In addition, the distance from the hinge shaft 6 receiving the load to the screw fastening portion does not increase, and the necessary strength can be maintained. Further, the main body of the lower hinge 4 does not increase in size and does not interfere with the door packing parts 9 that are mounted on the upper and lower sides of the lower hinge 4, and the door interval (the interval between the refrigerator door 2 and the refrigerator lower door 13) is widened. It is not necessary to take it and does not impair the design. Since the projection shape part of the hinge whose load is smaller than that of the hinge body part is made thinner than the hinge body part, screw fastening becomes easy and the device can be made inexpensive, and even if the door becomes heavy with the conventional door spacing, the refrigerator Since the strength can be maintained, it is possible to provide a refrigerator excellent in design. FIG. 4 is a perspective view of the bearing portion 12, and the key-shaped lock portion 14 of the bearing portion 12 is formed to be particularly thick and is about twice as large as the protruding shape portion 7 of the lower hinge 4. This is to withstand long-term use, such as when the refrigerator is used, and it prevents the protrusion-shaped portion 7 from being worn or the protrusion-shaped portion 7 and the key-shaped portion 14 from shifting in the thickness direction and not functioning. It is.
[0012]
Next, the manufacturing method of the hinge of this invention is described. The hinge according to the invention is manufactured by a continuous metal plate. The continuous mold is a single mold having a plurality of stages, which performs a plurality of processes such as bending and drilling. The projection shape portion 7 of the hinge part is crushed using one stage among the plurality of stages of the continuous mold. Formed by processing. Since parts can be completed with a continuous mold, it is not necessary to replace the mold every time bending or drilling is performed, and workability is improved.
[0013]
【The invention's effect】
As described above, the hinge device according to the first invention is a hinge device for holding the refrigerator door of the refrigerator in the refrigerator main body so as to be openable and closable. The hinge component provided on the refrigerator main body side and the lock component engaged with the hinge component And a projection part of the hinge part that engages with the lock part and fixes the refrigerator door in the closed state of the refrigerator door. Since the lock part is formed thinner than the hinge part main body that engages with the bearing part, and the lock part is formed thicker than the protruding shape part of the hinge part, the hinge part attachment space to the refrigerator main body is small, and the door interval can be made small. In addition, when a refrigerator is used, it should be prevented that the protrusion-shaped part wears out and the protrusion and the key-shaped lock part do not function due to deviation in the plate thickness direction. It can withstand long-term use.
[0014]
In the refrigerator hinge device according to the second aspect of the invention, since the lock component is made of a polymer material, the self-closing force of the refrigerator door is generated by the elastic force of the lock component.
[0015]
Moreover, since the processing method of the hinge apparatus of the refrigerator concerning 3rd invention is equipped with the step which crushes and forms the protrusion shape part of a hinge component, and forms a hinge component using a continuous type, workability | operativity is good.
[Brief description of the drawings]
FIG. 1 is a perspective view of a refrigerator body according to the present invention.
FIG. 2 is a view showing a hinge device when the refrigerator door is opened and closed according to the present invention.
FIG. 3 is a perspective view of a main part of a hinge device for supporting a refrigerator door of the refrigerator of the present invention.
FIG. 4 is a perspective view showing a bearing portion of the present invention.
FIG. 5 is a side view and a front view of a hinge part used in a refrigerator according to the present invention. FIG. 6 is a perspective view of a main part of a hinge device for supporting a refrigerator door of a conventional refrigerator.
FIG. 7 is a side view and a front view of a hinge part of a conventional refrigerator.
FIG. 8 is a side view and a front view of a hinge part of a conventional refrigerator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refrigerator main body, 2 Refrigerator door, 3 Upper hinge, 4 Lower hinge, 5 Hinge main body part, 6 Hinge shaft, 7 Projection shape part, 8 Refrigerator door lower side cap parts, 9 Door packing parts, 10 Partition parts, 11 Screws , 12 Bearing part with lock part, 13 Refrigerator lower door, 14 Key-shaped lock part, 15 Projection to the hinge part of the screw fastening tool size.

Claims (3)

In the hinge device for holding the refrigerator door of the refrigerator in the refrigerator main body so as to be freely opened and closed, a hinge part provided on the refrigerator main body side having a fastening part fastened to the refrigerator main body and a protrusion-shaped part integrally formed with the fastening part ; And a lock component that is attached to the hinge side of the lower surface of the refrigerator door and has a key shape that generates a self-closing force by an elastic force in the refrigerator door in a closed state of the refrigerator door engaged with the protrusion-shaped portion. The protrusion-shaped part formed integrally with the hinge part is formed thinner than the hinge part so as not to interfere with the fastening of the fastening part , and the protrusion-shaped part and the lock part The key-shaped part is formed thicker than the protrusion-shaped part so that the key-shaped part engages without shifting in the plate thickness direction .   2. The refrigerator hinge device according to claim 1, wherein the lock part is made of a polymer material. The hinge parts and integrally molded processing method of the hinge device according to claim 1, wherein in that example Bei the step of forming the pressed and thinned projected part.

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