KR200330478Y1 - Lower hinge fastening structure of the refrigerator - Google Patents

Abstract

The present invention relates to a lower hinge fastening structure for preventing the door sagging of the refrigerator, the lower hinge 10 having a hinge shaft 12 for supporting the refrigerator door and a bracket support for supporting the lower hinge 10 ( 20, the reinforcing piece 40 supporting the fastening of the refrigerator main body 1 of the lower hinge 10 and the bracket support 20, and the lower hinge 10 and the bracket support 20 of the refrigerator main body 1 Guide pins penetrating the lower hinge 10, the bracket support 20 and the refrigerator main body 1 to prevent the eccentricity between the bolt 30 and the components fastened by the bolt 30 is coupled to the fixed () It relates to a lower hinge fastening structure consisting of (50). The guide pin 50 is formed on the central axis, and is formed above and below the bolt 30. Therefore, when the bolt 30 is coupled, the eccentricity between the respective bolt fastening holes (p) is prevented, so that not only the precise coupling is performed but also the sagging of the door during use of the refrigerator to prevent cold air from leaking to the outside. It will improve the cooling efficiency of.

Description

Lower hinge fastening structure of the refrigerator

The present invention relates to a hinge structure for preventing the door sag of the refrigerator, and more particularly, by improving the structure of the lower hinge supporting the door to prevent the sag of the door to prevent the leakage of cold air to the outside to improve the cooling efficiency of the refrigerator It relates to a hinge structure for preventing the door sag of the refrigerator.

As shown in FIG. 1, a refrigerator 1 for storing and freezing or refrigerating food in general is partitioned into a freezer compartment 1a by a partition and a cold compartment 1b by a bottom by a partition wall. And the refrigerator 1 is supported by the door 2 which is rotatably supported in the front surface. The door 2 comprises a freezer compartment door 2a for opening and closing the freezer compartment and a refrigerating compartment door 2b for opening and closing the refrigerating compartment, and is rotatably supported by hinges 3, 4, and 5, respectively.

The hinge for rotatably supporting the door 2 includes an upper hinge 3 attached to the upper surface of the refrigerator body 1, an intermediate hinge 4 attached to the middle portion, and a lower hinge attached to the lower surface ( 5) consists of. Freezer compartment and refrigerator compartment doors 2a, 2b are rotatably supported by the hinges 3, 4, 5 as shown in the figure.

The hinges 3, 4, and 5 are supported in a state where the hinges 3, 4, and 5 are fastened to the respective portions of the refrigerator body 1 by a plurality of fastening bolts (not shown). Thus, the door 2 is assembled in a state where the hinge is fixed by the fastening bolt, and the finished product is shipped.

And, in the refrigerator door 2 as described above, a rubber packing member (not shown) is attached to each edge of the door to contact the freezing chamber 1a and the refrigerating chamber 1b during the opening and closing process of the door 2. It is adapted to reduce the impact and keep the refrigerator 1 airtight. A magnetic is attached to the inside of the packing member to close the door 2 by the magnetic force to the edges of the freezing and freezing chambers 1a and 1b, thereby preventing external leakage of cold air.

On the other hand, the lower hinge 5 located in the lower portion of the refrigerating chamber door 2b serves to support the load applied to the door 2b. The lower hinge 5 will be described in detail with reference to FIG. 2.

As shown, the lower portion of the refrigerating chamber 1b is bent in a double manner so that the lower bent surface 6a is horizontally attached to the bottom of the refrigerating chamber 1b, and the upper bent surface 6b is the lower portion of the refrigerating chamber door 2b. The hinge bracket 6 which is located at and supports the door 2b is provided. The hinge shaft 7 extends upwardly on the upper bent surface of the hinge bracket 6 so that the door 2b can be rotatably supported by being inserted from the bottom of the door 2b.

And, the lower portion of the hinge bracket (6) is provided with a bracket support (8) formed in a "c" shape, is fastened with a bolt together with the hinge bracket (6) is fixed to the refrigerator compartment (2b). And, the lower portion of the bracket support (8) is provided with a height adjustment screw (9) to adjust the height of the refrigerator 1 body.

The hinge bracket and the bracket support as described above will be described in more detail with reference to FIGS. 3 and 4 showing the structure of the bolt fastening to the refrigerator body.

As shown, a reinforcing plate (9) is attached to the inner wall surface (a) of the refrigerator main body (1) to which the hinge bracket (6) and the bracket support (8) is attached, such a reinforcing plate (9) is a bolt (5a) This is to improve the tightening force of). In addition, the hinge bracket 6, the bracket support 8, the refrigerator main body 1 and the reinforcing plate 9 are formed with bolt holes p through which the bolts 5a to be fastened are formed.

With this configuration, when assembling the door to the refrigerator main body 1, as shown in Fig. 4, the bolt hole (with the hinge bracket 6, the bracket support 8 and the reinforcing plate 9) in a state of being aligned with each other ( The hinge bracket 6, the bracket support 8 and the reinforcing plate 9 are connected to the refrigerator main body by being fastened with the nut 5b from the inside of the refrigerator main body 1 in a state where the bolt 5a is penetrated through p). It is fixed to (1). Therefore, in the above state, the bottom surface of the door is inserted into the hinge shaft 7 so that installation of the door is completed.

However, the following problems occur in the conventional lower hinge fastening structure configured as described above.

First, when assembling the door, the bolt fastening holes (p) formed in the hinge bracket (6) and the bracket support (8) and the refrigerator body (1) must be exactly matched, but each bolt fastening holes (p) are not exactly matched Eccentricity occurs. As a result, it is difficult to fasten the bolts 5a accurately, and when the bolts 5a are fastened, the torque is generated by the thread of the bolt body. The force due to the torque applied to the eccentric portion between the hinge bracket 6 of the lower hinge and the bolt fastening holes p of the bracket support 8 is particularly introduced into the refrigerator body 1 during assembling of the refrigerator. The amount of interference caused by the eccentricity between the bolt fastening holes (p) is changed by the external force received during the foaming process of the insulating material, the JIG use process, and the product transfer process. Due to such a change in the amount of interference occurs a problem that the bolt 5a is not completely in close contact with the bolt fastening hole (p).

In addition, since the hinge bracket 6, the bracket support 8 and the reinforcement plate 9 are fixed to the refrigerator main body 1 by the bolts 5a, due to the eccentricity between these bolts fastening holes (p) When a load is applied to the door, the lower hinge 5 is not completely fixed to the refrigerator body 1 and the fastening force of the bolt 5a is lowered. Therefore, there is a problem that the door does not properly support the load due to the weakening of the bolt fastening force, the door is sagging down. In addition, the adhesion between the refrigerator body 1 and the door is lowered due to the lowering of the bolt fastening force, thereby causing another problem that cooling efficiency of the refrigerator is lowered due to cold air flowing out.

The above problems are caused by not being able to exactly match each of the bolt fastening holes (p) formed in the hinge bracket (6) and the bracket support (8) and the refrigerator body (1), in particular the lower hinge ( When 5) is assembled, sagging of the door gradually occurs according to the door load during use of the refrigerator due to the eccentricity, which becomes a big complaint of the refrigerator user.

Therefore, the present invention is to solve the above problems, by improving the refrigerator main body fastening structure of the lower hinge supporting the door to ensure that the bolts are assembled in the state that each bolt fastening is exactly matched to prevent the eccentricity to accurately lower the hinge Aims to be combined.

In addition, it is another object of the present invention to provide a lower hinge fastening structure of the refrigerator which can prevent cooling of the door during the use of the door by using the correct hinge to prevent leakage of cold air and improve the cooling efficiency of the refrigerator.

1 is a side view of a conventional refrigerator.

FIG. 2 is a detailed view of portion A of FIG. 1;

Figure 3 is a front view of the lower hinge portion used in the conventional refrigerator.

Figure 4 is a cross-sectional view taken along the line B-B of Figure 3 showing the state when fastened by a bolt.

5 is a front view of the lower hinge portion constituting the door sag prevention structure of the refrigerator according to the present invention,

Figure 6 is a cross-sectional view taken along the line C-C of Figure 4 showing when it is fastened by a bolt.

* Description of the symbols for the main parts of the drawings *

10: lower hinge 12: hinge axis

14: hinge bracket 20: bracket support

30 bolt 40 reinforcement plate

50: guide pin a: refrigerator main body wall

p: bolt fastener q: guide hole

The lower hinge fastening structure for a refrigerator according to the present invention for achieving the above object, the lower hinge having a hinge axis for supporting the refrigerator door, the bracket support for supporting the lower hinge, the refrigerator of the lower hinge and the bracket support It includes a reinforcing piece for supporting the body fastening, fastening means for coupling and fixing the lower hinge and the bracket support to the refrigerator main body and an eccentric prevention means for preventing an eccentricity between the respective components fastened by the fastening means It makes a point.

In addition, the eccentric prevention means is formed integrally with the reinforcing piece, so that the lower hinge and the bracket support and the guide pin formed in the reinforcing piece through the refrigerator body. The guide pin may be provided with a plurality, and it may be desirable to be formed on the central axis and formed above and below the fastening means.

Therefore, the bolt fastening is accurately performed by the eccentric prevention means to prevent the door drooping, thereby preventing cold air leakage.

Hereinafter, with reference to the drawings of Figure 5 and Figure 6 showing the lower hinge fastening structure for a refrigerator according to the present invention having the configuration as described above will be described in more detail.

As shown, the lower hinge fastening structure according to the present invention, the lower hinge 10, the bracket support 20, the bolt 30, the reinforcing piece 40, provided with a hinge shaft 12 for supporting the door, And a guide pin 50.

First, the lower hinge 10 will be described. The lower hinge 10 is composed of a hinge bracket 14 and the hinge shaft 12, the hinge bracket 14 is coupled through the bottom of the refrigerator and the bottom of the door to support the door. That is, the hinge bracket 14 is bent in a double manner so that the lower bent surface 14a is horizontally attached to the bottom surface of the refrigerating chamber, and the upper bent surface 14b is positioned below the door to support the door. have. Therefore, when the load of the door 12 transmitted to the hinge shaft 12 is transmitted through the upper bent surface 14b, the load is distributed to the lower bent surface 24a, so that the door 12 can be effectively supported. . In addition, a bolt fastening hole (p) through which the bolt 30 penetrates is formed at the center of the vertical bending surface 14c to which the hinge bracket 14 is coupled to the main body surface (a) of the refrigerator, and the bolt fastening hole ( Above and below p), guide holes q are inserted into which guide pins 50 to be described later are inserted, respectively.

On the other hand, the hinge shaft 12 is formed to extend upward from one side of the upper bent surface 14b positioned in the lower part of the door to be rotatably supported by being inserted from the bottom of the door.

And, the lower portion of the hinge bracket 14 is provided with a bracket support 20 is formed in a "c" shape, fastened with a bolt 30 together with the hinge bracket 14 is fixed to the refrigerator compartment lower hinge 10 ). A bolt fastening hole p is also formed in the center of the vertical surface 20a of the bracket support 20 which is in contact with the vertical bending surface 14c of the hinge bracket 14, and above and below the bolt fastening hole p. A guide hole (q) into which the guide pin 50 is inserted is formed. Therefore, the guide pin 50, which will be described later, is inserted in the state where the guide holes q of the hinge bracket 14 and the bracket support 20 are matched, and in this state, the hinge bracket 14 and the bracket support 20 are inserted. ), The refrigerator body 1 and the bolt fastening holes p of the reinforcing piece 40 to be described later are in a state of exactly matching. Therefore, when the bolt 30 is inserted into the matched bolt fastening hole (p), the bolt 30 is correctly inserted without the occurrence of eccentricity, so the lower hinge 10 and the bracket support 20 are the refrigerator main body 1. To be firmly coupled to the

Next, the reinforcing piece 40 will be described. The reinforcing piece 40 serves to support when the lower hinge 10 and the bracket support 20 is coupled to the refrigerator body (1). The reinforcing piece 40 is coupled inside the wall surface (a) of the refrigerator body (1). In the reinforcing piece 40, bolt fastening holes p are formed in the center, and guide pins 50 are formed above and below the bolt fastening holes p, respectively. The guide pin 50 is inserted into the guide hole (q) of the hinge bracket 14 and the bracket support 20 described above serves to prevent the eccentricity of each bolt fastening hole (p). That is, in the state in which the guide pin 50 is inserted into each guide hole (q), each bolt fastening hole of the hinge bracket 14, the bracket support 20, the refrigerator main body 1 and the reinforcing piece 40 (p) ) Will remain exactly matched.

On the other hand, as described above, the guide pin 50 is to prevent the eccentricity in this embodiment is to be formed above and below the bolt fastening hole (p), respectively. However, it is not limited to the said embodiment. That is, the bolt fastening holes (p) may be formed in the horizontal position, respectively, or may be located at each corner. And the number is obviously not limited.

Next, the fastening process of the lower hinge according to the present invention is configured as described above. First, the reinforcing plate 40 is coupled to the refrigerator body 1 inside the wall surface a of the refrigerator body 1. That is, the guide pin 50 is inserted into the guide hole formed in the refrigerator body 1 to match the bolt fastening hole formed in the reinforcement plate 40 and the refrigerator body 1. In the above state, the guide pin 50 couples the lower hinge 10 and the bracket support 20 to be inserted into the guide hole q of the lower hinge 10 and the bracket support 20.

As described above, in the state in which the lower hinge 10 and the bracket support 20 are inserted into the guide pin 50, the bolt fastening holes p can be maintained in exactly the same state. Meanwhile, the bolt 30 is inserted into the matched bolt fastening hole p, and the lower hinge 10 and the bracket support 20 are coupled to the refrigerator main body 1 by using the nut 30 '. . At this time, since the eccentricity is prevented between the bolt fastening holes (p) by the guide pin (50), the occurrence of the torque by the bolt fastening is prevented, the lower hinge 10 and the bracket support 20 is the refrigerator body It can be accurately coupled to (1). And the door is fitted to the hinge shaft 12 in the state in which the lower hinge 10 is coupled as described above to complete the assembly of the door.

In the state in which the door is assembled, the load of the door is supported by the lower hinge 10, and even if the load of the door is transmitted to the bolt 30, the sag of the door is prevented. That is, the load of the door is transmitted to the bolt 30 through the hinge bracket 14 and the bracket support 20 of the lower hinge 10, the hinge bracket 14 and the bracket support 20 and the refrigerator body (1) Since the bolt 30 penetrating each bolt fastening hole (p) of the body is accurately coupled to prevent eccentricity, not only the occurrence of the torque due to the bolting is prevented, but also the lower hinge by the thread of the bolt 30 ( The lower hinge 10 can be coupled to the refrigerator body 1 as it is without damaging the 10. Therefore, the sagging of the door is prevented during the subsequent heat insulating material foaming, jig process and conveying process, and the sagging of the door is prevented even under the load of food stored in the door during the use of the refrigerator, so that the airtightness of the refrigerator can be sufficiently maintained. .

As described above, according to the lower hinge fastening structure of the refrigerator according to the present invention, the eccentricity of each bolt fastening hole is prevented by the guide pin, and the bolt is caused by the generation of the torque due to the load of the door as the exact bolt fastening is made. Torsion is prevented, and damage to the lower hinge caused by the thread of the bolt body is prevented, so that no sagging of the door is prevented from leaking cold air to the outside, thereby improving the cooling efficiency of the refrigerator.

In addition, the load by the food stored in the inside of the door and the use of the refrigerator for a long time can sufficiently support, there is another effect that the damage of the refrigerator door is made.

Claims (5)

A lower hinge having a hinge shaft for supporting a refrigerator door; Bracket support for supporting the lower hinge; A reinforcing piece supporting the fastening of the refrigerator to the lower hinge and the bracket body; Fastening means for coupling the lower hinge and the bracket support to the refrigerator body; And The lower hinge fastening structure for a refrigerator, characterized in that it comprises an eccentric prevention means for preventing the eccentricity between each of the parts fastened by the fastening means. The lower hinge fastening structure for a refrigerator according to claim 1, wherein the eccentric prevention means is formed integrally with the reinforcing piece. The lower hinge fastening structure according to claim 1 or 2, wherein the eccentric prevention means comprises a guide pin which penetrates the lower hinge, the bracket support, and the refrigerator main body, and is formed on the reinforcing piece. The lower hinge fastening structure for a refrigerator of claim 3, wherein the guide pin is provided in plurality. The lower hinge fastening structure of claim 4, wherein the guide pin is formed on a central axis and formed above and below the fastening means.