KR20140064340A - Refrigerator - Google Patents

Abstract

According to an aspect of the present invention, there is provided a refrigerator comprising: a storage room of a refrigerator having a rear slope; A drawer door for opening / closing the storage room; A basket mounted on the inside of the drawer door and drawn or drawn together with the drawer door; And a rail assembly for guiding the withdrawal and retraction of the basket to the storage chamber and supporting the basket,
The rail assembly includes a fixed rail coupled to a bottom surface or both side surfaces of the storage compartment and bent in correspondence with a rear inclined surface of the storage compartment and a sliding rail coupled to a lower surface of the basket or both sides of the basket, As shown in FIG.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator, and more particularly to a refrigerator having a rail at least partially bent.

Generally, a refrigerator discharges cold air generated by a refrigeration cycle including a compressor, a condenser, an expansion valve, an evaporator, etc. to lower the temperature of the inside of the refrigerator and freeze or refrigerate food or the like.

The refrigerator generally includes a freezer for freezing food or beverage, and a refrigerator for storing the food or beverage at a low temperature. In addition, a kimchi refrigerator for keeping food and vegetables such as kimchi fresh is also a kind of refrigerator.

At least one of the plurality of doors installed in the refrigerator is connected to one side of the main body by a hinge and is rotated to open and close the main body. In addition to the door pivoted by the hinge, a drawer door is also used in which a door is mounted on the front surface of the drawer and is drawn or drawn in the front-rear direction together with the drawer.

BACKGROUND ART [0002] In the case of a bottom freezer type large refrigerator in which a freezing chamber is disposed at a lower portion of a refrigerating chamber, drawer-type doors are often used as freezing chamber doors.

An example of a refrigerator according to the prior art will be described with reference to Figs. 1 to 4. Fig.

FIG. 1 is a perspective view showing a refrigerator according to the related art, FIG. 2 is a perspective view showing the inside of the freezer compartment in the refrigerator of FIG. 1, FIG. 3 is a side view showing a state where the freezer compartment door is opened in the refrigerator of FIG. 1, 4 is a frontal conceptual view showing a dead space in the refrigerator of FIG.

The illustrated refrigerator is a bottom freezer type refrigerator. A refrigerating compartment is disposed on an upper portion of the refrigerator body 10, and a freezing compartment 30 is disposed below the refrigerating compartment.

The front opening of the refrigerating compartment is opened and closed by a pair of refrigerating compartment doors 20 mounted on one side of the main body 10 by a hinge.

The front opening of the freezing chamber 30 is opened and closed by a freezing chamber door 40 which is removably mounted by the rail assembly 60.

A frame 50 is coupled to the freezing chamber door 40 and the rail assembly 60 is coupled between the frame 50 and the inner surface of the freezing chamber 30 to draw the freezing chamber door 40 Possibly.

A basket (70) is mounted on the frame (50), and various foods stored in the basket (70) are stored.

The basket 70 occupies more than half of the space in the lower portion of the freezing chamber 30. [

A shelf 92 is provided on the basket 70 so as to be able to be drawn out and a drawer 94 disposed on the shelf 92 and detachably mounted on the inner surface of the freezing chamber 30.

The basket 70 is mounted on the inside of the frame 50, and the rail assembly 60 is coupled to the outside of the frame 50.

The rail assembly 60 is disposed above the side surface of the basket 70 when viewed from the side.

The rail assembly 60 includes a support rail 61 fixed to both sides of the inner side surface of the freezing chamber 30, a guide rail 62 slidable with respect to the support rail, a middle rail 64 slidable relative to the guide rail, And a moving rail 66 that slides relative to the intermediate rail and is coupled to the frame 50.

The intermediate rail 64 is inserted between the guide rails 62 and the moving rails 66 to further increase the pull-out distance of the rail assembly 60.

However, as the number of constituent rails of the rail assembly increases, the pull-out distance may become longer, while the supporting force will decrease.

Thus, the rail assembly is generally constructed to include three types of guide rails, a middle rail, and a movable rail in addition to the support rail.

3) provided with a compressor or the like is provided at the lower rear portion of the freezing chamber 30 and the rear lower surface of the freezing chamber 30 is formed as an inclined surface 32 to form the machine room space .

Therefore, when the rail assembly 60 is coupled to the lower portion of the inner side of the freezing chamber 30, the pulling distance of the rail assembly 60 is shortened due to the inclined surface of the rear portion of the freezing chamber 30, have.

Therefore, the rail assembly 60 is mounted on the inner surface of the freezing chamber 30 at a height not interfering with the inclined surface 32 of the freezing chamber 30.

As best shown in the side view of FIG. 3, the rail assembly 60 may be installed at about half the height of the freezer compartment 30 storage space.

The rail assembly 60 should support the freezer compartment door 40 coupled with the frame 50 and the basket 70 in which food is stored and should be slidably mounted forward and backward.

The rail assembly 60 should be drawn into the freezer compartment 30 so that the freezer compartment door 40 can be closed so that the basket 70 can be drawn out of the freezer compartment 30 .

As shown in FIG. 4, since the rail assembly 60 is installed at a height of about 1/2 of the storage space of the freezer compartment 30 in order to secure a sufficient extraction distance, And a space between the inner surface of the freezing chamber 30 and the inner surface of the freezing chamber 30 becomes a dead space (DS).

Further, when the rail assembly 60 is lowered to efficiently utilize the storage space of the freezer compartment 30, there is a problem that the length of the rail is limited due to the inclined surface 32 and the pull-out distance is shortened.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a rail assembly in a lower portion of a storage compartment for effectively utilizing a storage compartment of a refrigerator in which a drawer- The present invention has been made to solve the above problems.

According to an aspect of the present invention, there is provided a refrigerator comprising: a storage chamber of a refrigerator having a rear slope; A drawer door for opening / closing the storage room; A basket mounted on the inside of the drawer door and drawn or drawn together with the drawer door; And a rail assembly for guiding the withdrawal and retraction of the basket to the storage chamber and supporting the basket,

The rail assembly includes a fixed rail coupled to a bottom surface or both side surfaces of the storage compartment and bent in correspondence with a rear inclined surface of the storage compartment and a sliding rail coupled to a lower surface of the basket or both sides of the basket, As shown in FIG.

It is preferable that the moving rail is made of at least a part of the rear part deformable.

Preferably, the fixed rail is coupled to a lower surface of the storage chamber, the movable rail is coupled to a lower surface of the basket, and the movable rail is coupled to slide on the fixed rail.

The rail assembly may have a shape in which a cross-sectional contour is close to a rectangle, and the long side of the rectangular cross-section of the rail assembly may be horizontally disposed.

Preferably, the fixed rail is coupled to a lower side of the storage chamber, the movable rail is coupled to a lower side of the basket, and the movable rail is coupled to slide inside the fixed rail.

The rail assembly has a shape in which the cross-sectional outline is close to a rectangle, and the long side of the rectangular cross section of the rail assembly is vertically disposed.

The refrigerator further includes a frame fixed to the drawer door to support the basket, and the moving rail of the rail assembly is coupled to a lower portion of the frame.

The rail assembly may further include an intermediate rail slidably coupled between the fixed rail and the movable rail.

According to another aspect of the present invention, there is provided a refrigerator comprising: a storage chamber of a refrigerator having a rear slope; A drawer door for opening / closing the storage room; A basket mounted on a frame coupled to the inside of the drawer door and drawn or drawn together with the drawer door; A fixed rail fixed to a lower portion of the storage chamber and including a horizontal portion and an inclined portion formed to correspond to a bottom surface and an inclined surface of the storage chamber; And a moving rail coupled to the frame and slidable relative to the stationary rail and adapted to deform while passing through the bent portion between the horizontal portion and the inclined portion.

The moving rail preferably includes a non-deformed portion corresponding to the horizontal portion of the fixed rail and a deformed portion corresponding to the inclined portion of the fixed rail, at a position where the movable rail is maximally drawn into the fixed rail.

Preferably, the fixed rail is made of metal, the non-deformed portion of the moving rail is made of metal, and the deformed portion of the moving rail is made of deformable rubber or resin.

The refrigerator may further include a middle rail slidably coupled between the fixed rail and the movable rail.

The fixed rail is coupled to a lower surface of the storage chamber, the movable rail is coupled to a lower surface of the basket, and the movable rail can be coupled to the intermediate rail.

The fixed rail is coupled to a lower side of the storage chamber, the movable rail is coupled to a lower side of the basket, and the movable rail can be coupled to the intermediate rail.

According to the refrigerator of the present invention, the rail assembly is installed in the lower portion of the storage chamber, thereby effectively utilizing the storage space.

In addition, the rail assembly is installed at the lower portion of the storage chamber, and the pull-out distance is not restricted by the inclined surface at the rear of the storage chamber.

1 is a perspective view of a refrigerator according to the prior art.
2 is a perspective view showing the inside of the freezer compartment in the refrigerator of FIG.
3 is a side view showing a state where the freezer compartment door is opened in the refrigerator of FIG.
FIG. 4 is a front view showing a dead space in the refrigerator of FIG. 1. FIG.
5 is a front view showing a mounting position of a rail assembly in a refrigerator according to a first embodiment of the present invention.
Figure 6 is a side view of the freezer compartment of Figure 5 showing the basket inside the freezer compartment and the rail assembly.
7 is a side view showing a state in which the basket is taken out in Fig.
8 is a front view showing a mounting position of a rail assembly in a refrigerator according to a second embodiment of the present invention.
Figure 9 is a side view of the freezer compartment of Figure 8 showing the basket within the freezer compartment and the rail assembly.
10 is a side view showing a state in which the basket is taken out in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present invention, the same constituent elements as those of the conventional art are denoted by the same reference numerals, and a description overlapping with the conventional art will be omitted.

FIG. 5 is a front elevation conceptual view showing a mounting position of a rail assembly in a refrigerator according to a first embodiment of the present invention, and FIG. 6 is a side view of a freezer compartment showing a basket and a rail assembly in the freezer compartment of FIG.

The refrigerator of the present invention will be applied to a refrigerator in which a drawer-type door is installed in a freezer compartment of a bottom freezer-type refrigerator in which a refrigerating compartment is disposed at an upper portion and a freezing compartment is disposed at a lower portion. However, the present invention is not limited thereto.

That is, in the bottom freezer type refrigerator shown in FIGS. 1 and 2, the rail assembly of the present invention is disposed at the lower portion of the freezer compartment. Since a mounting space such as a machine room is disposed behind the storage compartment, If the storage compartment door is a drawer type door and the rail assembly is mounted, it may be applied to other types of refrigerator.

Hereinafter, the present invention will be described on the assumption that the present invention is applied to a bottom freezer type refrigerator.

In the refrigerator of the present invention, the refrigerating compartment may be disposed on the upper portion and the freezing compartment may be disposed on the lower portion of the refrigerator of the present invention.

In the refrigerator of the present invention, since the machine room 12 is disposed behind the freezer compartment 30 as shown in FIG. 3, the rear surface of the freezer compartment 30 is formed as the inclined surface 32.

The door for opening and closing the freezing compartment 30 is a drawer door 40. The door 40 is coupled to one side of a pair of rail assemblies 100 and is pulled out.

The rail assembly 100 according to the first embodiment of the present invention is disposed under the basket 70 as shown in Fig.

The rail assembly 100 includes a fixed rail 110 coupled to a lower surface of the freezing chamber 30 and bent corresponding to a rear inclined surface 32 of the freezing chamber 30, And a sliding rail 130, which is partly bent while sliding.

The rail assembly 100 further includes a plurality of ball bearings 112 between the stationary rail 110 and the moving rail 130 and a retainer 114 for supporting the spacing between the plurality of ball bearings 112 can do.

One pair of the ball bearings 112 and the retainers 114 are inserted into and coupled to one rail assembly 100.

The movable rail 130 is generally formed to be slidable on the inner side of the fixed rail 110.

One side of the fixed rail 110 and one side of the moving rail 130 are formed so as to surround the ball bearing 112.

The ball bearing 112 and the retainer 114 may not be provided if the movable rail 130 is slidable while the inserted rail 130 is inserted into the fixed rail 110.

The moving rail 130 may be made of a deformable material at least in a rear portion thereof.

The fixed rail 110 is fixed to the lower surface of the freezing chamber 30 and the inclined surface 32, and the horizontal portion and the inclined portion are integrally formed at a predetermined angle.

The movable rail 130 is positioned at a position where the movable rail 130 is maximally retracted from the fixed rail 110. The movable rail 130 includes a non-deformed portion 132 corresponding to the horizontal portion of the fixed rail 110, And a deforming portion 134 corresponding to the portion of the surface.

The unmodified portion 132 of the moving rail 130 can be coupled to the bottom surface of the basket 70 by a coupling member 150 such as a screw.

The basket 70 is coupled to the freezer compartment door 40 so that when the user pulls the pull of the door 40, the basket 70 can be pulled out together with the movable rail 130.

The deformed portion 134 of the moving rail 130 may be deformed by being made of rubber or a resin material whose material itself is deformable.

Generally, each rail of the rail assembly is made of metal so that friction is less and not easily deformed.

The deformed portion 132 of the movable rail 130 and the fixed rail 110 are made of metal while the deformed portion 134 of the movable rail 130 is made of rubber or resin .

The deformed portion 134 of the movable rail 130 may be curved at an angle when it passes through the bent portion of the fixed rail 110. The deformed portion 134 of the fixed rail 110 The side portions of the deforming portion 134 which are coupled to each other in the longitudinal direction may preferably maintain rigidity so as to have a supporting force.

The deformed portion 134 of the movable rail 130 may be made of a deformable material. However, the deformed portion 134 may be made of a hard metal such as the unmodified portion 132, And may be structured such that they are connected to each other in the form of a chain.

The rail assembly 100 may have a shape whose cross-section is close to a rectangle.

At this time, when the rail assembly 100 is disposed on the lower surface of the basket 70, it is preferable that the long sides of the rectangular cross section are horizontally disposed.

The rail assembly 100 may be arranged such that the long side of the rectangular cross section is vertically disposed, but is horizontally disposed in terms of space utilization.

The refrigerator may further include a frame 50 fixed to the door 40 to support the basket 70.

In the above description, the moving rail 130 of the rail assembly 100 is directly coupled to the basket 70. In this case, the door 40 may be coupled to the front portion of the basket 70.

On the other hand, when the frame 50 is coupled between the door 40 and the rail assembly 100, the frame 50 is coupled to the inner surface of the door 40, The basket 70 is coupled to the upper surface of the frame 50 and the movable rail 130 can be coupled to the lower portion of the frame 50 with screws or the like.

Since the basket 70 is mainly made of plastic and the frame 50 made of metal is much stronger than the basket 70, More preferably, to the rail assembly 100 through the rail assembly 100.

The operation of the refrigerator according to the first embodiment of the present invention will be described with reference to FIGS. 6 and 7. FIG.

In the state of FIG. 6, when the user pulls the door 40, the basket 70 and the movable rail 130 are pulled forward.

At this time, the deformed portion 134 of the movable rail 130 is linearly deformed by sequentially changing the angle of the bent portion of the fixed rail 110.

The deformed portion 134 of the movable rail 130 passes all the bent portions of the fixed rail 110 and is continuously pulled forward along the horizontal portion.

When the movable rail 130 is drawn out to the maximum, the maximum draw-out point may be limited by a stopper (not shown) provided between the movable rail 130 and the fixed rail 130.

All of the deformed portion 134 of the movable rail 130 and a part of the unmodified portion 132 are inserted into the horizontal portion of the fixed rail 130 when the movable rail 130 is fully drawn out .

When the movable rail 130 is drawn out, it receives a moment due to the weight of the basket 70. Therefore, when only the deformed portion 134 is inserted into the fixed rail 130, It can fall.

However, in this case, the pull-out distance of the movable rail 130 may be limited, so that the pull-out distance can be extended by further including the intermediate rail 120 (see FIGS. 8 and 9) as described later in the second embodiment More preferable.

Next, a refrigerator according to a second embodiment of the present invention will be described with reference to FIGS. 8 to 10. FIG.

The refrigerator according to the second embodiment is similar to the refrigerator according to the first embodiment in that the rail assembly 100 is coupled to lower portions of both sides of the freezing chamber 30 and the rail assembly 100 further includes an intermediate rail 120. [ It is different from the example.

The rail assembly 100 is coupled between a lower portion of the inner side of the freezing chamber 30 and a lower portion of the outer side of the basket 70.

It is preferable that the basket 70 is recessed so that the rail assembly 100 is coupled to the rail assembly 100 so that the basket 70 can be used as a storage space.

1 to 3) are coupled and fixed to the inside of the door 40. The basket 70 is coupled to and supported on the inside of the frame 50, The rail assembly 100 is coupled to the frame 50 to support the frame 50 so that the frame 50 can be drawn out.

It will be appreciated that the frame 50 is not shown in FIGS. 8-10 but is coupled between the basket 70 and the rail assembly 100 with reference to FIGS. 1-3.

At least a part of the rear surface of the basket 70 is inclined corresponding to the inclined surface 32 of the freezing chamber 30.

The rail assembly 100 includes a fixed rail 110 coupled to and fixed to a lower portion of the freezer compartment 30, a middle rail 120 coupled to the frame 50 and slidably coupled to the fixed rail 110, And a moving rail 130 that slides relative to the intermediate rail 120.

The fixed rail 110 includes a horizontal portion and an inclined portion formed to correspond to the bottom surface and the inclined surface 32 of the freezing chamber 30, respectively.

The angle between the horizontal portion and the inclined portion may be the same as the angle formed by the inclined surface 32 and the bottom surface.

The movable rail 130 is coupled to the outer side of the frame 50 and slides on the horizontal portion and the inclined portion of the fixed rail 110 to be continuously deformed when passing through the bent portion between the horizontal portion and the inclined portion. .

As described above, the moving rail 130 includes a non-deforming portion 132 sliding on a horizontal portion of the fixed rail 110 and a deforming portion 134 slidable on both the horizontal portion and the inclined portion .

Also in this embodiment, as in the first embodiment, the non-deformed portion 132 is made of metal, and the deformed portion 134 can be made of rubber or resin material which can deform itself.

Between the stationary rail 110 and the middle rail 120, a plurality of ball bearings 112 and a retainer 114 for holding and supporting the gap therebetween are provided.

To this end, the side portions of the fixed rail 110 and the intermediate rail 120 are formed in a curved shape so that the plurality of ball bearings 112 can be accommodated while rolling.

Between the intermediate rail 120 and the moving rail 130, a plurality of ball bearings 122 and a retainer 124 for holding and supporting the gap therebetween are provided.

Likewise, the intermediate rail 120 and the moving rail 130 are also formed in the shape of a curved surface whose sides can accommodate the plurality of ball bearings 122.

The operation of the refrigerator according to the first embodiment of the present invention will be described with reference to FIGS. 9 and 10. FIG.

9, when the user pulls the door 40 while the basket 70 is fully inserted into the freezer compartment 30, the rail assembly 100 slides along with the door 40 The basket 70 starts being pulled out.

At this time, as the movable rail 130 slides against the fixed rail 110, the deformation portion 134 of the movable rail 130 descends on the inclined portion of the fixed rail 110, 130 are protruded from the fixed rail 110. The non-deformed portion 132 of the movable rail 130 protrudes from the fixed rail 110. [

At the same time, the deformed portion 134 of the movable rail 130 passes through the bent portion between the horizontal portion and the inclined portion of the fixed rail 110, and the bent portion is continuously deformed and expanded.

When the basket 70 is further drawn out and the moving rail 130 is further drawn out, the middle rail 120 starts to slide with the moving rail 130, and more than half of the middle rail 120 And can be pulled out from the fixed rail 110 until it protrudes.

It is preferable that the basket 70 is completely exposed to the outside of the freezing chamber 30 when the basket 70 is drawn out to the maximum, as shown in FIG.

In this state, the rear portion of the unmodified portion 132 of the movable rail 130 is disposed so as to overlap with the intermediate rail 120 by a predetermined length or more, so that the basket 70 or the like is attached to the rail assembly 100 So that it can withstand the moments applied.

According to the refrigerator of the second embodiment, the draw-out distance can be further elongated by further including the intermediate rail as compared with the first embodiment, and by connecting the basket to the rail assembly via the frame, Can be more firmly assembled.

According to the refrigerator of the present invention, the storage space can be efficiently utilized by providing the rail assembly at the lower part of the storage room, and the draw-out distance can be overcome by the inclined surface in the rear of the storage room.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Changes will be possible.

10: Refrigerator body
20: Refrigerator door
30: Freezer
32:
40: Freezer door
50: frame
70: Basket
100: Rail assembly
110: Fixed rail
120: intermediate rail
130: movable rail

Claims (14)

A storage room of a refrigerator having a rear slope;
A drawer door for opening / closing the storage room;
A basket mounted on the inside of the drawer door and drawn or drawn together with the drawer door;
And a rail assembly for guiding the withdrawal and retraction of the basket to the storage chamber and supporting the basket,
The rail assembly includes:
A fixed rail coupled to a bottom surface or both side surfaces of the storage compartment and bent corresponding to a rear inclined surface of the storage compartment,
And a moving rail coupled to a lower surface of the basket or below both side surfaces of the basket, the sliding rail bending and sliding partly on the stationary rail. The method according to claim 1,
Wherein the moving rail is made of a deformable material at least in a rear portion thereof. 3. The method of claim 2,
Wherein the fixed rail is coupled to a lower surface of the storage chamber,
The moving rail is coupled to a lower surface of the basket,
Wherein the movable rail is coupled to slide on the fixed rail. The method of claim 3,
Wherein the rail assembly has an outline contour of a substantially rectangular shape,
Wherein the rail assembly is horizontally disposed at a long side of the rectangular cross section. 3. The method according to claim 1 or 2,
Wherein the fixed rail is coupled to a lower side of the storage chamber,
The moving rail is coupled to a lower side of the basket,
And the moving rail is coupled to slide inside the fixed rail. 6. The method of claim 5,
Wherein the rail assembly has an outline contour of a substantially rectangular shape,
Wherein a long side of the rectangular cross section of the rail assembly is vertically disposed. The method according to claim 1,
The refrigerator further includes a frame fixed to the drawer door to support the basket,
Wherein the moving rail of the rail assembly is coupled to a lower portion of the frame. 8. The method according to any one of claims 1 to 7,
Wherein the rail assembly further comprises a middle rail slidably coupled between the fixed rail and the moving rail. A storage room of a refrigerator having a rear slope;
A drawer door for opening / closing the storage room;
A basket mounted on a frame coupled to the inside of the drawer door and drawn or drawn together with the drawer door;
A fixed rail fixed to a lower portion of the storage chamber and including a horizontal portion and an inclined portion formed to correspond to a bottom surface and an inclined surface of the storage chamber;
And a movable rail coupled to the frame and slidable with respect to the stationary rail and configured to be deformed while passing through the bent portion between the horizontal portion and the inclined portion. 10. The method of claim 9,
Wherein the movable rail has, at a position where it is maximally retracted into the fixed rail,
A non-deformed portion corresponding to a horizontal portion of the fixed rail,
And a deformed portion corresponding to an inclined portion of the fixed rail. 11. The method of claim 10,
Wherein the fixed rail is made of metal,
The non-deformed portion of the moving rail is made of metal,
Wherein the deformed portion of the moving rail is made of deformable rubber or resin material. 12. The method of claim 11,
Wherein the refrigerator further comprises a middle rail slidably coupled between the fixed rail and the moving rail. 13. The method of claim 12,
Wherein the fixed rail is coupled to a lower surface of the storage chamber,
The moving rail is coupled to a lower surface of the basket,
Wherein the moving rail is coupled to the intermediate rail so as to be slidable. 13. The method of claim 12,
Wherein the fixed rail is coupled to a lower side of the storage chamber,
The moving rail is coupled to a lower side of the basket,
Wherein the moving rail is coupled to the intermediate rail so as to be slidable.

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