KR200169568Y1 - Door hinge device of refrigerator - Google Patents

Abstract

The present invention relates to a door hinge device of a refrigerator, and an object thereof is to improve a lower hinge supporting a lower end of the door to effectively prevent the generation of a step of the door.

According to the door hinge device of the refrigerator according to the present invention, the hinge member 51 provided with a hinge shaft (51a) to support the lower end of one side of the door (30) to be able to adjust the height through one height adjustment bolt (53). It is mounted on the hinge bracket 52 fixed to the cabinet 10.

Therefore, by effectively preventing the step of the door 30 by loosening or tightening the height adjusting bolt 53 so that the hinge member 51 is raised and lowered, there is an advantage that the product reliability of the refrigerator is further improved.

Description

Door hinge device of refrigerator

The present invention relates to a refrigerator, and more particularly to a door hinge device of the refrigerator for rotatably coupling the door to the cabinet.

In general, the refrigerator is configured to maintain the freshness of various foods for a long time by supplying the cold air generated from the evaporator of the refrigeration cycle to the storage room, the recent trend is a large-capacity refrigerator in the home.

The large refrigerator includes a cabinet that forms an outer body and has a storage compartment left and right inside thereof, and a pair of doors that are hinged to the front of the cabinet to open and close the storage compartment.

Inside the cabinet, partition walls are placed so that the storage compartment is partitioned from side to side. And a pair of doors are coupled to the front of the cabinet through a hinge on one side of the upper and lower ends, and rotates around the door, the door shelf is provided on the back of each door so that small food, that is, drinks and the like are inserted and stored.

On the other hand, the hinge for coupling the door to the cabinet is divided into an upper hinge and a lower hinge, through which the upper side of the cabinet and the upper end of one side of the door are coupled, and the lower side of the cabinet and the lower side of the door are coupled through the lower hinge. do.

However, the conventional refrigerator may cause a step difference in the door when the installation height is slightly different due to the manufacturing deviation of the hinge and the door, and such a door is not provided with a means for adjusting the deviation.

Therefore, in the parallel refrigerator employing the left and right doors, when manufacturing deviation occurs in the upper and lower hinges and one or more installation positions of the upper and lower ends of the door to the cabinet, the left and right doors are stepped together to harm the aesthetics, In severe cases, there is a problem in that cold air leaks and product reliability decreases.

The present invention is to solve this problem, an object of the present invention is to improve the lower hinge that combines the lower side of one side of the door to the cabinet so that the height of the door can be adjusted of the refrigerator that can effectively prevent the step difference of the door It is to provide a door hinge device.

1 is a schematic view showing a refrigerator to which the present invention is applied.

2 is an exploded perspective view of the lower hinge according to the first embodiment of the present invention.

Figure 3 is a schematic view showing a coupling state of the lower hinge according to the first embodiment of the present invention.

Figure 4 is a schematic diagram showing an operating state of the lower hinge according to the first embodiment of the present invention.

5 is an exploded perspective view of a lower hinge according to a second embodiment of the present invention.

Figure 6 is a side cross-sectional view showing a coupling state of the lower hinge according to the second embodiment of the present invention.

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

10. cabinet 20. storage room

30..door 50,60..lower hinge

51,61..Hinge member 51a, 61a..Hinge shaft

52,62 ... Hinge bracket 53,63 ... Height adjustment bolt

The present invention according to the first embodiment for achieving the above object, the cabinet is formed in the storage compartment, the door coupled to the cabinet to open and close the storage compartment, the hinge shaft is provided to support the lower end of one side of the door to the cabinet rotatably In the refrigerator with the lower hinge,

Hahinji,

The hinge shaft is bent so as to be coupled to the lower side of the cabinet and the shaft support provided to protrude upwards, the lower end is provided with a hinge member having a coupling portion consisting of a gradient surface, the upper portion of the pocket is opened to accommodate the coupling portion of the hinge member is provided inside the cabinet The hinge bracket is fixed to the hinge bracket side, the head portion is positioned outside the hinge bracket to adjust the height of the hinge member and the male screw end portion is provided with a height adjustment bolt in contact with the gradient surface.

And the present invention according to the second embodiment, the storage compartment is provided with a cabinet, the door is coupled to the cabinet to open and close the storage compartment, the lower hinge provided with a hinge shaft to support the lower end of one side of the door to enable the rotational movement in the cabinet In the refrigerator,

Hahinji,

A hinge member having an axial support portion provided to protrude upward and a hinge portion bent to engage the lower side of the cabinet, and a hinged bracket fixed to the lower side of the cabinet are provided inside the pocket portion open to accommodate the engaging portion of the hinge member. It includes a spiral shaft that the tip penetrates the front of the hinge bracket so as to support the lower end of the coupling portion and the head portion protrudes out of the hinge bracket, and a portion of the outer circumference of the spiral shaft contacting the coupling portion has a tapered surface. It is a structure characterized by including the adjustment bolt.

Hereinafter, with reference to the accompanying drawings a preferred first embodiment according to the present invention will be described in detail.

The refrigerator to which the present invention is applied, as shown in FIG. 1, can rotate in the cabinet 10 so as to open and close the cabinet 10 and the storage compartment 20 in which the storage compartment 20 is partitioned from side to side by the partition 11. And a pair of doors 30 coupled to each other.

The storage compartment 20 is formed to be open to the front of the cabinet 10, and a plurality of shelves 21 for storing food in a compartment are installed therein.

The pair of doors 30 is provided with a handle 31 that can be held by the user on the front surface, the door shelf 32 is accommodated on the back and the small food and water container is mounted up and down. One side of the door 30 is coupled to the upper and lower ends rotatably through the hinge 40, 50 in front of the cabinet 10, the hinge is divided into the upper hinge 40 and the lower hinge 50. That is, the upper end of one side of the door 30 is coupled to the upper part of the cabinet 10 through the upper hinge 40, and the lower end of one side of the door 30 is coupled to the lower part of the cabinet 10 through the lower hinge 50.

On the other hand, the lower hinge 50 is configured to prevent the step difference by adjusting the height of the door 30, the detailed structure thereof is as follows.

Referring to FIGS. 2 and 3, the lower hinge 50 has a hinge plate 51 provided with a hinge shaft 51a and a hinge bracket 51 on which the hinge member 51 is mounted and fixed to the lower side of the cabinet 10. The height adjustment bolt 53 is screwed to the hinge bracket 52 so as to adjust the height of the hinge member 51 mounted on the hinge bracket 52.

The plate-shaped hinge member 51 is provided with a shaft support 51b and a shaft support 51b in which the hinge shaft 51a protrudes upward so as to be fitted into the shaft coupling hole 33 formed at the lower edge portion of the door 30. It has a coupling portion (51c) is extended to be bent 90 degrees in the downward direction from the fitting to the hinge bracket (52), so that generally '??' It is provided to be bent into a shape. In addition, the lower end of the engaging portion 51c is composed of a gradient surface 51d inclined at a predetermined angle θ from the upper side to the lower side so that the height of the door 30 can be easily adjusted, which will be described in detail later.

The hinge bracket 52 is firmly fixed to the lower side of the cabinet 10 through bolts 52g, and an upper portion thereof is coupled to the coupling portion 51c of the hinge member 51 without shaking in the front, rear, and left and right directions. An open pocket portion 52d is formed. Four bolt fasteners 52e are provided at the lower part of the cabinet 10 to fix the hinge bracket 52, and bolt through holes 52f are formed at the rear surface 52b of the hinge bracket 52 so as to match the bolt fixtures 52e. It is perforated. In addition, a guide hole 52h is provided in the front surface 52a of the hinge bracket 52 so that the bolt 52g can be fastened to the bolt through hole 52f and the bolt fixing tool 52e using a tightening tool. The guide hole 52h is preferably configured to be larger than the bolt fixing tool 52e so that the bolt 52g penetrates and the end of the tightening tool is inserted with sufficient margin.

And the height adjustment bolt 53 is screwed to the side surface 52c of the hinge bracket 52 so that the end portion is extended into the pocket portion 52d to adjust the height of the hinge member 51. To this end, a screw coupling hole 52i having a female thread is provided at an inner circumference of the lower portion 52c of the hinge bracket 52, and an end portion of the male screw portion 53b of the height adjustment bolt 53 extending to a predetermined length is formed in a sphere. The tapered surface 53c is inclined in the same manner as the back 51d angle. The end portion of the male screw portion 53b is formed to have a tapered surface 53c so as to be in surface contact with the tapered surface 51d of the coupling portion 51c to firmly support it. In addition, when the inclination angle θ of the tapered surface 53c and the gradient surface 51d is made large, the displacement of the hinge member 51 is made large according to the tightening degree of the height adjusting bolt 53, and the height adjusting bolt ( 53 is preferably configured to sufficiently support the load of the door 30.

Next, the assembly process and the effect of the lower hinge according to the first embodiment of the present invention configured as described above will be described.

First, the bolt fixing holes 52e formed in the cabinet 10 coincide with the bolt through holes 52f of the hinge brackets 52, and then tighten the bolts 52g using the tightening tools, respectively, the hinge brackets 52 The cabinet 10 is firmly fixed to the bottom. Then, when the height adjusting bolt 53 is tightened to the screw coupling hole 52i outside the hinge bracket 52, the head portion 53a is located outside the hinge bracket 52, and the male screw portion 53b is the pocket portion 52d. Is inserted into

In this state, when the engaging portion 51c of the hinge member 51 is inserted into the pocket portion 52d, the gradient surface 51d of the engaging portion 51c is in surface contact with the tapered surface 53c of the male screw portion 53b. do. Subsequently, the hinge shaft 51a protruding upward is inserted into the shaft coupling hole 33 formed in the lower edge portion of the door 30. Accordingly, the lower side of the door 30 is rotatably coupled to the cabinet 10.

At this time, the axial load of the door 30 is transmitted to the height adjustment bolt 53 side through the hinge member 51, the end portion of the height adjustment bolt 53 and the engaging portion 51c of the hinge member 51 is The door 30 is firmly supported by surface contact through the gradient surface 51d and the tapered surface 53c.

On the other hand, if a slight step is formed in the door 30 due to a manufacturing deviation of the hinge parts or an error in the assembly position, the step may be removed by adjusting the height of the door 30 by loosening or tightening the height adjusting bolt 53. have. That is, when the door 30 is installed low, as shown in FIG. 4, when the head 53a of the height adjustment bolt 53 is held by a wrench and tightened, the taper is tapered on the gradient surface 51d of the engaging portion 51c. While the surface 53c is in surface contact, the male screw portion 53b is inserted into the pocket portion 52d and the engaging portion 51c is lifted upward. Accordingly, the hinge member 51 provided with the hinge shaft 51a is raised by Δh from the initial state and the height of the door 30 is also increased. On the contrary, when the door 30 is installed high, the height of the hinge member 51 is lowered when the height adjusting bolt 53 is loosened, so that the step of the door 30 can be removed.

As a result, by tightening or loosening one height adjusting bolt 53 to easily adjust the height of the door 30, the manufacturing deviation of the hinge part can effectively eliminate the generation of the step 30 of the door 30 due to an assembly error or the like.

Next, a second embodiment according to the present invention will be described in detail with reference to FIGS. 5 and 6. (The second embodiment according to the present invention is different from the configuration and coupling position of the height adjustment bolt, detailed description of the same components as the first embodiment described above will be omitted.

Referring to FIG. 5, the lower hinge 60 rotatably coupling the lower end of one side of the refrigerator door 30 may include a shaft support part 61b and a coupling part 61c that are bent at 90 degrees and provided with a hinge axis 61a. The hinge member 61 and the coupling portion 61c of the hinge member 61 are accommodated and hinged through the hinge bracket 62 fixed to the bottom of the cabinet 10 and the front surface 62a of the hinge bracket 62. The height adjustment bolt 63 which adjusts the height of the member 61 is provided.

The hinge bracket 62 is fixed to the bottom of the cabinet 10 by bolts 62g, and is configured to have a front side 62a, a rear side 62b, and a side surface 62c, and an internally open pocket portion 62d is formed therein. do. The coupling portion 61c of the hinge member 61 is coupled to the pocket portion 62d without being moved back and forth and in the left and right directions. Four bolt fasteners 62e are provided at the bottom of the cabinet 10 to fix the hinge bracket 62, and the bolt through holes 62f are aligned with the bolt fixtures 62e at the rear surface 62b of the hinge bracket 62. It is perforated. In addition, a guide hole 62h is provided in the front surface 62a of the hinge bracket 62 so as to fasten the bolt 62g to the bolt through hole 62f and the bolt fixing tool 62e using a tightening tool. The guide hole 62h is preferably configured to be larger than the bolt fixing tool 62e so that the bolt 62g penetrates and the end of the tightening tool is inserted with sufficient margin.

And the height adjustment bolt 63 is screwed into the cabinet 10 through the front end 62a of the hinge bracket 62 so that the end portion is extended into the pocket portion 62d to adjust the height of the hinge member 61. Hexagonal head 63a, which can be held by a wrench, extends from the head 63a, and has a spiral shaft 63b with a male screw 63c processed at its tip, between the male screw 63c and the head 63a. A part of the outer circumference of the spiral shaft 63b includes a tapered surface 63d formed at a predetermined inclination angle. The tapered surface 63d is inclined at a predetermined angle by gradually decreasing its diameter toward the tip side of the spiral shaft 63b. In addition, a through hole 62j is formed in the lower portion of the front surface 62a of the hinge bracket 62 so that the spiral shaft 63b penetrates freely for coupling the height adjustment bolt 63, and the cabinet 10 has a predetermined depth. Coupling tool 62i is provided. The coupling hole 62i is formed at a position corresponding to the through hole 62j, and a female screw is machined in the inner circumference so that the male screw 63c is screwed.

Next, the assembly process and the effect of the lower hinge according to the second embodiment of the present invention will be described.

First, when the bolt fixing tool 62e and the bolt through hole 62f coincide with each other and then tighten the bolt 62g using the tightening tool, the hinge bracket 62 is firmly fixed to the lower part of the cabinet 10. Then, when the height adjustment bolt 63 is tightened to the coupling hole 62i outside the hinge bracket 62, the spiral shaft 63b is allowed to penetrate the through hole 62i to allow the tapered surface 63d to have a pocket portion 62d. The head 63a is located outside the hinge bracket 62.

In this state, when the engaging portion 61c of the hinge member 61 is inserted into the pocket portion 62d, the lower end of the engaging portion 61c is contacted and supported in the middle of the tapered surface 63d of the spiral shaft 63b. Then, the hinge shaft 61a protruding upward is inserted into the shaft coupling hole 33 of the door 30. Therefore, the door 30 may be coupled to the cabinet 10 in a rotatable manner to open and close the storage compartment 20.

On the other hand, when a slight step is formed in the door 30 due to manufacturing deviation or assembly position error of the lower hinge 60, by adjusting the height of the door 30 by loosening or tightening the height adjusting bolt 63 through a wrench. The step can be eliminated. That is, when the head 30a of the height adjustment bolt 63 is tightened when the door 30 is mounted low, the tapered surface 63d is inserted into the pocket part 62d while contacting the lower end of the coupling part 61c. At the same time, the engaging portion 61c is lifted upward. Accordingly, the hinge member 61 provided with the hinge shaft 61a ascends from the initial state as a whole, and the height of the door 30 is also increased. On the contrary, when the door 30 is installed high, the height of the hinge member 61 is lowered when the height adjusting bolt 63 is loosened, so that the step of the door 30 can be removed.

Therefore, by adjusting the height of the hinge member 61 through one height adjustment bolt 63, it is possible to effectively cope with the generation of the door 30 step.

As described above in detail, according to the door hinge device of the refrigerator according to the present invention, a hinge member provided with a hinge shaft to support a lower end of one side of the door is fixed to the cabinet so that the height can be adjusted through one height adjustment trolley Since it is attached to the bracket, by unfastening or tightening the height adjustment bolt to effectively prevent the generation of steps, there is an advantage that the product reliability of the refrigerator is more improved.

Claims (3)

A refrigerator having a cabinet having a storage compartment formed therein, a door coupled to the cabinet to open and close the storage compartment, and a lower hinge provided with a hinge shaft to support a lower end of one side of the door in a rotatable manner. The lower hinge 50, The hinge member 51 having a shaft support portion 51b provided to protrude upward and a coupling portion 51c formed at a lower end of the cabinet shaft 51d to be coupled to the lower side of the cabinet 10. , The hinge bracket 52 fixed to the lower side of the cabinet 10 is provided with a pocket portion 52d having an open upper portion so as to accommodate the coupling portion 51c of the hinge member 51. The head portion 53a is positioned outside the hinge bracket 52 and the male screw portion 53b end is screwed to the hinge bracket 52 side 52c to adjust the height of the hinge member 51. A door hinge device for a refrigerator, comprising a height adjusting bolt (53) contacting the rear surface (51d). The method of claim 1, The end of the male screw portion (53b) of the height adjustment bolt (53) is a door hinge device of the refrigerator, characterized in that made of a tapered surface (53c) in surface contact with the gradient surface (51d). A refrigerator having a cabinet having a storage compartment formed therein, a door coupled to the cabinet to open and close the storage compartment, and a lower hinge provided with a hinge shaft to support a lower end of one side of the door in a rotatable manner. The lower hinge 60, A hinge member 61 having an axial support portion 61b provided so that the hinge shaft 61a protrudes upward and a coupling portion 61c bent to be coupled to the lower side of the cabinet 10; The hinge bracket 62 fixed to the lower side of the cabinet 10 is provided with a pocket portion 62d having an upper portion open therein to accommodate the coupling portion 61c of the hinge member 61, A protruding end of the spiral shaft 63b and the hinge bracket 62 are screwed to the cabinet 10 through the front surface 62a of the hinge bracket 62 so as to support a lower end of the coupling portion 61c. And a height adjustment bolt (63) having a tapered surface (63d) of a portion of the outer circumference of the spiral shaft (63b) in contact with the coupling portion (61c). Door hinges.