KR20140049954A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator, and more particularly to a refrigerator including a refrigerator body having a storage chamber, a main door for opening and closing the storage chamber, and an auxiliary door installed in the main door, in which a plurality of auxiliary doors are installed to be opened and closed leftwards and rightwards. The present invention relates to a refrigerator including a refrigerator body, storage chambers including a first storage chamber, a second storage chamber, a third storage chamber, and a fourth storage chamber formed in the body, main doors including a first main door for opening and closing the first storage chamber, a second main door for opening and closing the second storage chamber, a third main door for opening and closing the third storage chamber, and a fourth main door for opening and closing the fourth storage chamber, and an auxiliary door installed in at least one of the first to fourth main doors, wherein a plurality of auxiliary doors are installed. Further, the present invention relates to a refrigerator including a first auxiliary door and a second auxiliary door which are opened and closed leftwards and rightwards by one hinge assembly.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator having improved appearance.

[Previous Document 1] Korean Public Utility Publication No. 20-1999-0027408

As shown in FIG. 1, the conventional refrigerator 1 includes a main body 10, two doors 20 and 30 that open and close in directions opposite to each other, and protrude to open and close the doors 20 and 30. And a handle, a dispenser 40 installed outside the door 20, a home bar 50 installed in the door 30, and a home bar door 51 opening and closing the home bar 50.

The width of the groove bar 50 is smaller than the width of the doa 30, there are a plurality of such a groove bar 50 is installed, there is a problem that the appearance is not good.

[Previous Document 2] Korean Utility Model Registration No. 20-0244433

The refrigerator according to the related art 2 includes a main body 5 having a refrigerator compartment 2 and a freezer compartment 12, a freezer compartment door 13 that opens and closes the freezer compartment 12, a handle that opens and closes the freezer compartment door 13, A refrigerator compartment door 4 installed at a lower portion of the freezer compartment door 13 to open and close the refrigerator compartment 2, a handle to open and close the refrigerator compartment door 4, and a support provided at a lower portion of the refrigerator compartment door 4; And an auxiliary door 9 for opening and closing the storage compartment 10 and a handle for opening and closing the auxiliary door 9.

The refrigerator 2 of the related art has a problem that the freezing compartment door 13, the refrigerating compartment door 4, and the auxiliary door 9 are provided at intervals from each other, which may damage the aesthetics.

Republic of Korea open practical application No. 20-1999-0027408 Republic of Korea Registered Utility No. 20-0244433

The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a refrigerator which improves appearance by installing a plurality of auxiliary doors without gaps.

The refrigerator of the present invention for achieving the above object includes a refrigerator body having a storage compartment, a main door for opening and closing the storage compartment, and an auxiliary door installed in the main door, wherein the auxiliary doors are opened and closed left and right, Characterized in that installed.

The plurality of auxiliary doors may include a first auxiliary door and a second auxiliary door, and the second auxiliary door may be installed below the first auxiliary door.

There is no gap between the first auxiliary door and the second auxiliary door.

The upper end of the auxiliary door is located higher than the upper end of the main door or characterized in that located on the same line.

The lower end of the auxiliary door is located lower than the lower end of the main door or characterized in that located on the same line.

And the width of the auxiliary door is equal to the width of the main door.

In addition, the refrigerator of the present invention includes a refrigerator main body, a storage compartment including a first storage compartment, a second storage compartment, a third storage compartment, and a fourth storage compartment formed in the refrigerator body, and a first main door that opens and closes the first storage compartment. And a main door including a second main door to open and close the second storage compartment, a third main door to open and close the third storage compartment, and a fourth main door to open and close the fourth storage compartment, and the first main door. It includes an auxiliary door installed in at least one of the door to the fourth main door, characterized in that the auxiliary door is installed in plurality.

The plurality of auxiliary doors include a first auxiliary door and a second auxiliary door, wherein the first main door opens and closes a first storage compartment provided at an upper portion thereof, and the third main door opens a third storage compartment provided at an upper portion thereof. The first auxiliary door and the second auxiliary door are opened and closed, and are installed in at least one of the first main door and the third main door.

The first storage chamber and the third storage chamber is a cold storage chamber, the second storage chamber and the fourth storage chamber are cold storage freezer storage chambers, and the cold storage chamber is installed at an upper left and an upper right side of the front side, and the cold storage freezer storage compartment Is characterized in that it is installed in the lower left and lower right from the front.

In addition, the refrigerator of the present invention includes a refrigerator main body having a storage compartment, a main door that opens and closes the storage compartment, and a first auxiliary door and a second auxiliary door installed in the main door, wherein the first auxiliary door and the The second auxiliary door is opened and closed in the same direction by the hinge shaft, and at least a part of the hinge shaft is positioned in a groove formed at the lower end of the first auxiliary door.

The hinge shaft is coupled to the hinge bracket, the hinge bracket is characterized in that installed on the main door.

In addition, the refrigerator of the present invention includes a refrigerator main body having a storage compartment, a main door for opening and closing the storage compartment, a first auxiliary door and a second auxiliary door installed in the main door, and a lower end of the first auxiliary door. And an upper end of the second auxiliary door is coupled to the main door via one hinge assembly.

The hinge assembly is characterized by consisting of a hinge bracket coupled to the main door, and a hinge axis extending vertically from one side of the hinge bracket.

The hinge assembly is installed in the groove formed on the lower end of the first auxiliary door.

According to the refrigerator of the present invention as described above, the following effects can be obtained.

The refrigerator includes a refrigerator body having a storage compartment, a main door for opening and closing the storage compartment, and an auxiliary door installed in the main door, wherein the auxiliary door is opened to the left and right and installed in plurality. Food can be stored for the user's purpose, improving user convenience while minimizing cold air loss due to frequent door openings.

The plurality of auxiliary doors may include a first auxiliary door and a second auxiliary door, and the second auxiliary door may be installed at a lower portion of the first auxiliary door. Therefore, consumption efficiency can be improved, and efficiency can be increased by opening up less space.

There is no gap between the first auxiliary door and the second auxiliary door, it is possible to improve the appearance beauty.

The upper end of the auxiliary door is located higher than the upper end of the main door or on the same line, it is possible to open and close only the necessary part according to the user's needs can improve the consumption efficiency, open a small space by The space efficiency can be increased, and the appearance beauty can be improved.

The lower end of the auxiliary door is located lower than the lower end of the main door or on the same line, it is possible to improve the appearance beauty.

The width of the auxiliary door is characterized in that the same as the width of the main door, can be opened and closed only the necessary portion according to the user's needs can improve the consumption efficiency, open the small space can increase the space efficiency , Appearance can be improved.

In addition, the refrigerator of the present invention includes a refrigerator main body, a storage compartment including a first storage compartment, a second storage compartment, a third storage compartment, and a fourth storage compartment formed in the refrigerator body, and a first main door that opens and closes the first storage compartment. And a main door including a second main door to open and close the second storage compartment, a third main door to open and close the third storage compartment, and a fourth main door to open and close the fourth storage compartment, and the first main door. Including at least one of the door to the at least one of the fourth main door, characterized in that the auxiliary door is installed in a plurality, characterized in that the user frequently used food can be stored according to the user's frequent door User convenience can be improved while minimizing cold air loss due to opening and closing.

The plurality of auxiliary doors include a first auxiliary door and a second auxiliary door, wherein the first main door opens and closes a first storage compartment provided at an upper portion thereof, and the third main door opens a third storage compartment provided at an upper portion thereof. Opening and closing, the first auxiliary door and the second auxiliary door is installed in at least one of the first main door or the third main door, it is possible to improve the appearance and to meet the needs of the user Therefore, only necessary parts can be opened, thereby improving the consumption efficiency, and opening up a small space can increase the space efficiency. In addition, since the user can comfortably open the auxiliary doors that are frequently used, the user's convenience can be improved.

The first storage chamber and the third storage chamber is a cold storage chamber, the second storage chamber and the fourth storage chamber are cold storage freezer storage chambers, and the cold storage chamber is installed at an upper left and an upper right side of the front side, and the cold storage freezer storage compartment It is characterized in that it is installed in the lower left and the lower right from the front, the refrigerator storage compartment and the refrigeration freezer storage storage compartment is formed in each of the user can be divided according to the use can improve the convenience, by refrigeration or freezing The conversion allows for efficient storage of refrigerated or frozen foods.

In addition, the refrigerator of the present invention includes a refrigerator main body having a storage compartment, a main door that opens and closes the storage compartment, and a first auxiliary door and a second auxiliary door installed in the main door, wherein the first auxiliary door and the The second auxiliary door is opened and closed in the same direction by the hinge shaft, and at least a part of the hinge shaft is located in a groove formed at the lower end of the first auxiliary door. It can be installed without a gap between the door and the second auxiliary door, thereby improving the aesthetic appearance.

The hinge shaft is coupled to the hinge bracket, characterized in that the hinge bracket is installed on the main door, because the hinge shaft is installed stably, it can make the opening and closing of the first and second auxiliary doors stable.

In addition, the refrigerator of the present invention includes a refrigerator main body having a storage compartment, a main door for opening and closing the storage compartment, a first auxiliary door and a second auxiliary door installed in the main door, and a lower end of the first auxiliary door. And an upper end of the second auxiliary door is coupled to the main door via one hinge assembly, thereby opening and closing two auxiliary doors with one hinge assembly, thereby reducing the number of parts and thus reducing manufacturing costs. .

The hinge assembly is characterized by consisting of a hinge bracket coupled to the main door, and a hinge shaft extending up and down from one side of the hinge bracket, the hinge shaft is installed on the hinge bracket to ensure a stable opening and closing of the auxiliary door. Can be.

The hinge assembly may be installed in a groove formed at a lower end of the first auxiliary door, and when the product is viewed from the front, the hinge assembly may not be visible, and thus may be aesthetically pleasing.

1 is a perspective view of a conventional refrigerator.
2 is a perspective view of a refrigerator 2 according to the related art.
3 is a perspective view of a refrigerator according to a preferred embodiment of the present invention.
Figure 4 is a plan view of Figure 3;
Fig. 5 is a front view of Fig. 3; Fig.
6 is a layout view of a storage compartment of FIG. 3.
FIG. 7 is a first auxiliary door and second auxiliary door combination of FIG. 3.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

For reference, the same components as those of the prior art of the present invention will be described with reference to the above-mentioned prior arts, and a detailed description thereof will be omitted.

3 is a perspective view of a refrigerator according to a preferred embodiment of the present invention, FIG. 4 is a plan view of FIG. 3, FIG. 5 is a front view of FIG. 3, FIG. 6 is a layout view of the storage compartment of FIG. 3, and FIG. It is a combination of 1st auxiliary door and 2nd auxiliary door.

As shown in FIG. 3, the refrigerator of the present invention includes a refrigerator main body 2 in which storage compartments 21, 22, 23, and 24 are formed, and a first main body that opens and closes the storage compartments 21, 22, 23, and 24. It includes a door 31 and the auxiliary door (5) installed in the first main door (31), the auxiliary door (5) is characterized in that the left and right opening and closing a plurality.

The refrigerator body 2 includes a housing surrounding a storage compartment, and a main door and an auxiliary door are installed at a front surface of the refrigerator body 2.

The storage chambers 21, 22, 23, and 24 are formed in the refrigerator main body 2, and include a first storage chamber 21, a second storage chamber 22, a third storage chamber 23, and a fourth storage chamber ( Four are formed, including 24). The storage compartments are each partitioned.

The first storage chamber 21 and the second storage chamber 22 are formed in one of the left side and the right side, and the third storage chamber 23 and the fourth storage chamber 24 are formed in the other one.

In the present embodiment, the first storage chamber 21 is formed on the upper left side.

The first storage chamber 21 is a cold storage chamber for storing refrigerated food.

A second storage chamber 22 is formed below the first storage chamber 21.

The second storage chamber 22 is a refrigerated frozen conversion storage room for storing the refrigerated food or frozen food according to the needs of the user is switched between refrigeration and freezing.

The third storage chamber 23 is formed on the right side of the first storage chamber 21.

The first storage chamber 21 is formed on the left side of the third storage chamber 23, and the width of the third storage chamber 23 is preferably the same as the width of the first storage chamber 21.

The third storage room 23 is a cold storage room for storing the refrigerated food.

A fourth storage chamber 24 is formed below the third storage chamber 23. That is, the fourth storage chamber 24 is formed on the right side of the second storage chamber 22, and the width of the fourth storage chamber 24 is preferably the same as the width of the second storage chamber 22.

The fourth storage room 24 is a refrigerated frozen conversion storage room for storing the refrigerated food or frozen food according to the needs of the user is switched between refrigeration and freezing.

The first storage chamber 21 and the third storage chamber 23 are refrigerating storage chambers, the second storage chamber 22 and the fourth storage chamber 24 are refrigeration freezer storage storage chambers, and the refrigerating storage chambers 21 and 23 are left to front sides. It is formed in the upper and upper right, respectively, and the refrigeration freezer conversion storage chambers (21, 22, 23, 24) are respectively formed in the lower left and lower right from the front.

That is, in the present embodiment, the first storage chamber 21 is formed at the upper left side, and the second storage chamber 22 is formed at the lower left, respectively, and the third storage chamber 23 is at the upper right, and the fourth storage chamber 24 is at the lower right. Each is formed.

In this way, each storage compartment is arranged and can be stored according to the storage temperature of each food, so that each food can be kept fresh more effectively for a long time, and the food smell of each storage compartment is prevented from being mixed. In addition, the food often taken out can be stored at the top to improve user convenience.

The first storage compartment 21 and the third storage compartment 23 are cold storage compartments, and the second storage compartment 22 and the fourth storage compartment 24 are refrigeration freezer storage compartments. It can be stored separately by refrigerated or frozen food by providing two, and can be further stored to store the refrigerated or frozen food according to the temperature.

The first storage chamber 21, the second storage chamber 22, the third storage chamber 23, and the fourth storage chamber 24 may be cooled by direct cooling or intercooling, or may be cooled by direct cooling.

The main doors 31, 32, 33, and 34 may include a first main door 31 that opens and closes the first storage compartment 21, a second main door 32 that opens and closes the second storage compartment 22, and And a third main door 33 that opens and closes the third storage chamber 23, and a fourth main door 34 that opens and closes the fourth storage chamber 24.

The second main door 32 is installed below the first main door 31, and the third main door 33 is installed on the right side of the first main door 31.

The fourth main door 34 is installed below the third main door 33, and the first main door 31 is installed on the left side of the third main door 33.

The second main door 32 is installed on the left side of the fourth main door 34.

The width of the third main door 33 is the same as the width of the first main door 31, and the width of the fourth main door 34 is the same as the width of the second main door 32.

The first main door 31, the second main door 32, the third main door 33, and the fourth main door 34 are connected to the refrigerator main body 2 by a hinge to open and close. It is suitable to open and close by left and right pivot type. In this way, the first main door 31, the second main door 32, the third main door 33, and the fourth main door 34 open and close in a left-right rotational manner, thereby improving food convenience and opening food. It can be stored in each storage room to suit the purpose, minimizing cold air leakage.

A plurality of auxiliary doors 5 are provided in at least one of the first main door 31, the second main door 32, the third main door 33, and the fourth main door 34. .

In the present embodiment, it is specified that a plurality of auxiliary doors 5 are installed in the third main door 33.

The plurality of auxiliary doors 5 are installed in the third main door 33 that opens and closes the third storage chamber 23 so that the user can easily take out food stored behind the plurality of auxiliary doors 5 in a standing position. The user's convenience can be improved.

The plurality of auxiliary doors 5 are formed so as to correspond to the size of the third main door 33, which has the advantage that the appearance of the refrigerator becomes beautiful.

The plurality of auxiliary doors 5 includes a first auxiliary door 51 and a second auxiliary door 52 installed below the first auxiliary door 51.

The first auxiliary door 51 is installed on the front upper portion of the third main door 33.

The first auxiliary door 51 is connected to one side of the third main door 33 by a hinge.

The rotation axis of the first auxiliary door 51 is located on the same axis line as the rotation axis of the third main door 33, and the opening direction of the first auxiliary door 51 is the same as that of the third main door 33. It is preferable that it is the same as the opening direction, and in this embodiment, the first auxiliary door 51 is opened and closed by the left and right pivot type.

The upper end of the first auxiliary door 51 is preferably located higher than the upper end of the third main door 33 or on the same line, and the width of the first auxiliary door 51 is the third main door 33. It is preferable that the width is equal to.

A second auxiliary door 52 is installed below the first auxiliary door 51.

One side of the second auxiliary door 52 is connected to the lower side of the first auxiliary door 51 via a hinge to open and close the left and right pivots.

The rotation axis of the second auxiliary door 52 is located on the same axis line as the rotation axis of the third main door 33, and the opening direction of the second auxiliary door 52 is the same as that of the third main door 33. It is preferable that it is the same as the opening direction, and in this embodiment, the second auxiliary door 52 is opened and closed by the left and right pivot type.

The lower end of the second auxiliary door 52 is preferably located lower than the lower end of the third main door 33 or on the same line, and the width of the second auxiliary door 52 is the third main door 33. It is preferable that the width is equal to.

The upper end of the auxiliary door 51 is located higher than the upper end of the main door 33 or on the same line, the lower end of the auxiliary door 52 is located lower than the lower end of the main door 33 or on the same line, Up and down two auxiliary doors are provided in the main door, but only one horizontal partition line exists in appearance to improve aesthetics.

In the present embodiment, it has been described that the plurality of auxiliary doors 5 are installed in the third main door 33, but the plurality of auxiliary doors 5 may be installed in the first main door 31. It may be installed in both the third main door 33 and the first main door 31.

The third main door 33 is hinged to the right side of the refrigerator body 2 to rotate.

The third main door 33 and the upper right side of the refrigerator main body 2 are fixed and installed by a main bracket.

The main bracket has a rectangular main shape bracket installed on the upper surface of the refrigerator main body 2 and a second width connected to the first main bracket and narrowing toward the front of the third main door 33. And a third main bracket connected to the main bracket and the second main bracket and bent to the right side of the third main door 33.

The third main door 33 is hinged to the third main bracket to perform a rotational motion.

The first auxiliary door 51 is hinged to the right side of the third main door 33.

The first auxiliary door 51 is fixed and installed by an auxiliary bracket on the upper right side of the third main door 33.

The auxiliary bracket is located in front of the second main bracket and includes a first auxiliary bracket having a trapezoidal shape, and a second auxiliary bracket connected to the first auxiliary bracket and bent to the right of the first auxiliary door 51. .

The first auxiliary door 51 and the second auxiliary door 52 are rotated by the hinge assemblies 61 and 8.

The hinge assemblies 61 and 8 include a hinge shaft 61 and a hinge bracket 8.

A portion of the upper end of the hinge shaft 61 is inserted into the lower end of the first auxiliary door 51, and a portion of the lower end of the hinge shaft 61 is inserted into the upper end of the second auxiliary door 52. That is, the lower end of the first auxiliary door 51 and the upper end of the second auxiliary door 52 are coupled to each other via one hinge shaft 61.

The remaining portions except the upper portion and the lower portion of the hinge shaft 61 are located in the grooves formed on the lower right side of the first auxiliary door 51.

The upper end of the hinge shaft 61 is installed on the lower right side of the first auxiliary door 51 so that the first bearing 610 is inserted and rotatable.

The lower end of the hinge shaft 61 is installed on the upper right side of the second auxiliary door 52 so that the second bearing 620 is inserted and rotatable.

It is preferable that one hinge shaft 61 is installed, and the first auxiliary door 51 and the second auxiliary door 52 are opened and closed at one time by one hinge shaft 61, thereby reducing the number of parts. It is possible to reduce manufacturing costs and increase utilization.

A hinge bracket 8 is installed between the lower right side of the first auxiliary door 51 and the upper right side of the second auxiliary door 52.

The hinge bracket 8 has a 'b' shape and includes a vertical portion and a horizontal portion.

The vertical portion is fixed between the first gasket 71 of the first auxiliary door 51 and the second gasket 72 of the second auxiliary door 52, and a fastening hole is formed.

The vertical part is installed to be fixed to the front surface of the third main door 33 by the bolt 85 fastened to the fastening hole. Thus, when the hinge bracket 8 and the hinge shaft 61 is coupled, the auxiliary doors 51 and 52 are installed to be stably opened and closed with respect to the third main door 33.

The horizontal portion includes a rib 80 bent downward, and a communication hole formed on one side of the rib 80 to communicate with the hinge shaft 61 to be described later. That is, the hinge shaft 61 is installed to extend in the vertical direction in the communication hole.

Since the hinge shaft 61 and the hinge bracket 8 are installed in the groove formed at the lower right side of the first auxiliary door 51, when the product is viewed from the front, the first auxiliary door 51 and the first auxiliary door 51 are formed. There is no gap between the two auxiliary doors 52.

In addition, a hinge shaft 61 and a hinge bracket 8 are installed to open and close the first auxiliary door 51 and the second auxiliary door 52 in the same direction.

The rotation axis of the third main door 33 and the rotation axis and the hinge axis 61 of the first auxiliary door 51 are on the same axis, and thus, the third main door 33 and the first auxiliary door. The 51 and the second auxiliary door 52 can rotate in the same direction.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims .

As described above, the refrigerator according to the present invention is particularly suitable for a refrigerator, a kimchi refrigerator, and a double door refrigerator to improve the appearance beauty.

1: refrigerator 2: refrigerator body
21: First storage room 22: Second storage room
23: third storage room 24: fourth storage room
31: The first main door 32: The second main door
33: Third Main Door 34: Fourth Main Door
5: auxiliary door
51: first auxiliary door 52: second auxiliary door
61: hinge axis 610: first bearing
620: second bearing 71: first gasket
72: second gasket 8: hinge bracket
80: rib 85: bolt

Claims (14)

A refrigerator body in which a storage compartment is formed;
A main door for opening and closing the storage compartment;
Auxiliary door is installed in the main door; including,
The auxiliary door is opened and closed left and right, characterized in that a plurality of refrigerators are installed. The method according to claim 1,
The plurality of auxiliary doors include a first auxiliary door and a second auxiliary door,
The second auxiliary door is a refrigerator, characterized in that installed in the lower portion of the first auxiliary door. The method according to claim 2,
The refrigerator characterized in that there is no gap between the first auxiliary door and the second auxiliary door. The method of claim 3,
The upper end of the auxiliary door is higher than the upper end of the main door or the refrigerator characterized in that it is located on the same line. The method of claim 3,
A lower end of the auxiliary door is located below or lower than the lower end of the main door. The method according to any one of claims 4 to 5,
The width of the auxiliary door is the refrigerator, characterized in that the same as the width of the main door. Refrigerator body;
A storage compartment including a first storage compartment, a second storage compartment, a third storage compartment, and a fourth storage compartment formed in the refrigerator main body;
A first main door to open and close the first storage compartment, a second main door to open and close the second storage compartment, a third main door to open and close the third storage compartment, and a fourth main door to open and close the fourth storage compartment A main door comprising a;
Includes; an auxiliary door installed in at least one of the first main door to the fourth main door;
Refrigerator, characterized in that the plurality of auxiliary doors are installed. The method of claim 7,
The plurality of auxiliary doors include a first auxiliary door and a second auxiliary door,
The first main door opens and closes the first storage compartment provided in the upper portion, and the third main door opens and closes the third storage compartment provided in the upper portion,
And the first auxiliary door and the second auxiliary door are installed in at least one of the first main door and the third main door. The method according to claim 8,
The first storage chamber and the third storage chamber are cold storage chambers, the second storage chamber and the fourth storage chamber are refrigerated freezing storage chambers,
The refrigerator compartment is installed in the upper left and upper right in the front, the refrigerator freezer storage compartment is characterized in that the refrigerator installed in the lower left and lower right in the front. A refrigerator body in which a storage compartment is formed;
A main door for opening and closing the storage compartment;
Including; a first auxiliary door and a second auxiliary door installed in the main door;
The first auxiliary door and the second auxiliary door is opened and closed in the same direction by a hinge axis,
A refrigerator, characterized in that at least a portion of the hinge shaft is located in a groove formed in the lower end of the first auxiliary door. The method of claim 10,
The hinge shaft is coupled to the hinge bracket, the hinge bracket is characterized in that the refrigerator is installed on the main door. A refrigerator body in which a storage compartment is formed;
A main door for opening and closing the storage compartment;
Including; a first auxiliary door and a second auxiliary door installed in the main door;
And a lower end of the first auxiliary door and an upper end of the second auxiliary door are coupled to the main door via one hinge assembly. The method of claim 12,
The hinge assembly is a hinge bracket coupled to the main door,
And a hinge shaft extending vertically from one side of the hinge bracket. The method according to claim 12 or 13,
And the hinge assembly is installed in a groove formed at a lower end of the first auxiliary door.

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