KR20200054924A - Refrigerator - Google Patents

Abstract

The present invention is to provide a cantilever shelf which is slidable and foldable so as to variably change the storage space of a refrigerator. The cantilever shelf of the present invention includes: a fixed shelf having a pair of side frames and a rear frame connecting the pair of side frames and coupled to a shelf connecting portion; a slide shelf provided to be slid back and forth between the pair of side frames; and a folding shelf provided to be rotatable between the pair of side frames in the rear of the slide shelf.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a shelf of a refrigerator.

In general, a refrigerator is a device for freshly storing food using cold air generated in a cooling cycle. In the storage room of the refrigerator, a shelf is mounted so as to divide the storage room up and down and to place food.

The present invention relates to a shelf of a refrigerator, and particularly to a shelf capable of securing space by sliding and rotating a part of the shelf when storing food having a high height in a storage room.

The documents disclosed in relation to the sliding and rotatable variable lathe include Korean Patent Publication No. 10-2005-0071183 (2005.07.07.), And in particular, Korean Patent Publication No. 10-2011-002589 (2011.01.10. ) Includes a first divided shelf rotatably installed around its rear end, a second divided shelf movably installed relative to the first divided shelf, and a fixed shelf supporting the first divided shelf and the second divided shelf. A structure of a variable shelf provided is disclosed. However, the variable shelf disclosed herein is provided to be supported by a support provided on a side wall of the inside of the storage compartment.

One aspect of the present invention is a cantilever-type shelf supported by a rear wall of the inner box, not supported by a side wall of the inner box, and a portion thereof discloses a slidable and foldable shelf.

Disclosed is a cantilever shelf having a slide shelf slideable in front and rear and a folding shelf provided rotatably.

Disclosed is a cantilever shelf having a slide shelf and a folding shelf, wherein a pair of side frames of a fixed shelf supporting the slide shelf and the folding shelf is prevented from being opened by a load.

In a cantilever shelf having a slide shelf and a folding shelf, a cantilever shelf is disclosed that prevents the slide shelf from being released during movement.

According to the spirit of the present invention, a refrigerator includes a main body; a storage compartment formed inside the main body; and a shelf coupling part provided inside and behind the storage compartment; And a cantilever shelf coupled to and supported by the shelf coupling portion, wherein the cantilever shelf comprises: a fixed shelf having side frames protruding forward from both sides; and on both sides of the fixed shelf to support the fixed shelf. Hanger brackets each provided and having an engaging ring coupled to the shelf coupling portion; and a slide shelf provided slidably between the side frames; and rotatable behind the slide shelf between the side frames Folding shelf is provided; It includes; and a gap preventing portion for preventing the side frames from being mutually opened by a load acting on the cantilever shelf.

Here, the gap prevention portion includes first gap prevention protrusions provided on both sides of the slide shelf, and first gap prevention grooves provided on the side frames, respectively, when the slide shelf is withdrawn to the maximum First gap preventing protrusions may be inserted into the first gap preventing grooves.

In addition, the gap prevention portion includes second gap prevention protrusions provided on both sides of the folding shelf, and second gap prevention grooves provided on the side frames, respectively, when the folding shelf is not folded. The second gap preventing protrusions may be inserted into the second gap preventing grooves.

In addition, the gap preventing portion is provided on each side of the sliding shelf so as to prevent the side frames from being opened to each other during movement of the slide shelf, and the third gap prevention protrusions provided on the side frames, respectively. Grooves.

Here, the third anti-split protrusions and the third anti-split grooves may be provided long along the movement direction of the slide shelf.

In addition, the refrigerator may further include an auxiliary frame coupled to the side frame to form the third gap preventing groove.

Here, the auxiliary frame may be screwed to the side frame.

In addition, the slide shelf includes a first rail protruding laterally for slide, the side frame includes a second rail slidably supporting the first rail, and the folding shelf includes the first rail. And a third rail slidably supported.

Here, the refrigerator may further include a stopper portion for fixing the slide shelf while the slide shelf is fully drawn.

Here, the stopper portion may include a stopper protrusion provided at the front end of the first rail, and a stopper groove provided at the front end of the second rail so that the stopper protrusion is inserted.

In addition, the refrigerator includes at least one support bar connecting the hanger brackets to support the hanger brackets, and the at least one support bar is at least more than the slide shelf so as not to interfere with the operation of the slide shelf and the folding shelf. It can be placed in the rear.

In addition, the shelf engaging portion may include a plurality of shelf hanger grooves formed to be fixed by inserting the engaging ring and spaced apart from each other in the vertical direction to enable height adjustment of the cantilever shelf.

In addition, an accommodating groove through which the shelf coupling portion is accommodated may be formed on the rear wall of the storage compartment.

In addition, the refrigerator further includes a cold air duct supplying cold air to the storage compartment, and a duct cover coupled to a rear wall of the storage compartment to form the cold air duct, wherein the duct cover includes a receiving groove for receiving and engaging the shelf coupling part. Can be formed.

According to the spirit of the present invention, the cantilever shelf of the refrigerator includes fixed shelves having side frames protruding forward from both sides; and hanger brackets having engaging rings coupled to both sides of the fixed shelves and coupled to the shelf coupling portions, respectively. ; And, a slide shelf provided slidably between the side frames; And, a folding shelf provided rotatably behind the slide shelf between the side frames; It includes; and a gap preventing portion for preventing the side frames from being mutually opened by a load acting on the cantilever shelf.

According to the spirit of the present invention, a storage space in a refrigerator having a cantilever shelf can be variously varied.

According to the spirit of the present invention, it is possible to prevent the phenomenon that both side frames of the fixed shelf supporting the slide shelf and the folding shelf open and the slide shelf detached from the fixed shelf.

1 is a view showing the interior of a refrigerator according to an embodiment of the present invention.
Figure 2 is a view showing a coupling structure of the cantilever shelf of the refrigerator of Figure 1;
3 is a perspective bottom view of the cantilever shelf of the refrigerator of FIG. 1;
Figure 4 is an exploded perspective view of the cantilever shelf of the refrigerator of Figure 1;
5 is a view showing a structure of a first gap prevention portion and a third gap prevention portion of the refrigerator of FIG. 1;
6 is a cross-sectional view for explaining the structure of the third gap preventing portion of the refrigerator of FIG. 1.
7 is a view showing the structure of the second rail of the side frame of the refrigerator of FIG. 1.
8 is a view showing the structure of the second gap preventing portion of the refrigerator of FIG. 1.
9 and 10 are views for explaining the operation of the cantilever shelf of the refrigerator of FIG. 1.
11 is a view showing a coupling structure of a cantilever shelf according to another embodiment of the present invention.

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

1 is a view showing the interior of a refrigerator according to an embodiment of the present invention.

Referring to Figure 1, the refrigerator is provided on the front of the plurality of storage compartments 20, a plurality of storage compartments 20, the main body 10 is formed, and a plurality of storage compartments (21,22) doors (31,32) to open and close each storage compartment (20) ), A cold air supply device (not shown) for supplying cold air to the interior of the storage rooms 21 and 22, and a machine room (not shown) provided on the lower rear side of the main body 10 and in which electric components such as a compressor are installed. It can be configured to include.

In addition, the refrigerator of the present embodiment includes a refrigeration cycle composed of a compressor, a condenser, an expander, and an evaporator to generate cold air discharged through a cold air supply device (not shown).

The body 10 is composed of an inner box 11 and an outer box 13, and between the inner box 11 and the outer box 13 of the body 10, a heat insulating material 15 is foamed and filled to maintain thermal insulation.

Further, the main body 10 includes an upper wall 16, a lower wall (not shown), a left wall 17, a right wall 18, and a rear wall 19. In addition, the main body 10 includes an intermediate bulkhead 20 horizontally arranged to partition the storage compartments 21 and 22.

The storage chambers 21 and 22 include a first storage chamber 21 provided at an upper portion of the intermediate partition wall 20 and a second storage chamber 22 provided at a lower portion. The first storage compartment 21 may be a refrigerating compartment that slightly exceeds the freezing temperature, and the second storage compartment 22 may be configured as a freezing compartment that maintains below the freezing temperature.

Doors 31, 32, and 35 for opening and closing each storage chamber 21, 22 are provided on the front surfaces of the first storage chamber 21 and the second storage chamber 22. Doors (31,32,35) is a pair of rotary doors (31,32) for rotating and opening and closing the left and right sides of the first storage chamber (21), and a drawer-type door (35) for slidingly opening and closing the second storage chamber (22). It can be done.

The pair of rotary doors 31 and 32 are hinged to the left and right of the main body 10, respectively, and the drawer-type door 35 is coupled to the main body 10 for sliding in and out.

The first storage compartment 21 is provided with a relatively large storage space as it is not separated by a separate insulating partition, and the gap between the pair of rotary doors 31 and 32 that open and close the relatively large storage space. Filler device 37 for sealing is provided.

One side wall of the first storage room 21, for example, near the edge of the upper side of the left wall 17, is formed on an insulating wall, and an ice-making room provided separately from the first storage room 21 is formed, and ice is produced in the ice-making room. The de-icing device 50 may be installed.

In addition, the first storage compartment 21 is provided with a plurality of shelves in which foods to be stored are placed in the upper space of the first storage compartment 21 so that a relatively large storage space can be efficiently used, and the first storage compartment 21 is provided. In the lower space of the food can be provided with a closed container (90) for storing food waste.

The plurality of shelves may be a cantilever shelf 100 coupled to and supported by a shelf coupling portion 80 installed on the rear wall 19 of the first storage room 21.

The shelf engaging portion 80 to which the cantilever shelf 100 is coupled is provided with a plurality of shelf hanger grooves 81 (FIG. 2) spaced apart from each other in the vertical direction to enable height adjustment of the cantilever shelf 100.

Hereinafter, a specific configuration of the cantilever shelf 100 will be described with reference to the drawings.

FIG. 2 is a view showing a coupling structure of the cantilever shelf of the refrigerator of FIG. 1, FIG. 3 is a bottom perspective view of the cantilever shelf of the refrigerator of FIG. 1, and FIG. 4 is an exploded perspective view of the cantilever shelf of the refrigerator of FIG. 1. 5 is a view showing the structure of the first gap prevention portion and the third gap prevention portion of the refrigerator of FIG. 1, and FIG. 6 is a cross-sectional view for explaining the structure of the third gap prevention portion of the refrigerator of FIG. 1, and FIG. 7 1 is a view showing the structure of the second rail of the side frame of the refrigerator of FIG. 1, and FIG. 8 is a view showing the structure of the second gap prevention part of the refrigerator of FIG. 1.

The cantilever shelf 100 includes a fixed shelf 200, hanger brackets 700 provided on both sides of the fixed shelf 200 to support the fixed shelf 200, and a fixed shelf 200 in the front-rear direction. It includes a slide shelf 500 provided to be movable in a slide, and a folding shelf 600 rotatably provided with respect to the fixed shelf 200.

The fixed shelf 200 includes an article support 201 for supporting an article, a pair of side frames 300, a front frame 210, and a rear frame 220. The article support 201 may have a tempered glass material. The article support 201 may be surrounded by a pair of side frames 300, a front frame 210, and a rear frame 220.

Here, the pair of side frames 300 protrude forward to support the slide shelf 500 and the folding shelf 600. The slide shelf 500 and the folding shelf 600 are disposed between the pair of side frames 300 while both ends are supported by the pair of side frames 300.

The pair of hanger brackets 700 may be coupled to both sides of the fixed shelf 200 to support the fixed shelf 200. The hanger brackets 700 have a metal material and can be firmly coupled to the side of the fixed shelf 200 by screws S. To this end, screw fasteners 701 and 301 may be formed in the hanger brackets 700 and the side frames 300, respectively.

At the rear end of the hanger brackets 700, a coupling ring 410 is inserted into and fixed to the shelf hanger groove 81 of the shelf coupling portion 80. 2, the receiving groove 12 may be formed in the rear wall 19 of the inner box 11 of the storage compartment, and the shelf coupling portion 80 may be inserted and coupled to the receiving groove 12.

At least one support bar 380 connecting the pair of hanger brackets 700 may be provided at the rear of the pair of hanger brackets 700. At this time, the at least one support bar 380 is preferably disposed at least behind the slide shelf 500 so as not to interfere with the operation of the slide shelf 500 and the folding shelf (600).

The shelf hanger groove 81 of the shelf engaging portion 80 may be formed to be spaced apart from each other in the vertical direction to enable height adjustment of the cantilever shelf 100.

The slide shelf 500 may include an article support 501 supporting an article and a support frame 502 provided to surround an edge of the article support 501. The article support 501 may have a tempered glass material.

The slide shelf 500 has a pair of first rails 510 for slide movement. The pair of first rails 510 may be formed to protrude on both sides of the slide shelf 500, respectively. The pair of first rails 510 may be formed long in the front-rear direction. The first rails 510 may be slidably supported by the second rails 310 and the third rails 610, which will be described later.

The stopper protrusions 520 for fixing the position of the slide shelf 500 may protrude downward when the slide shelf 500 is pulled out to the front end of the first rails 510. The stopper protrusions 520 may be inserted into the stopper grooves 311 described later.

In addition, the slide shelf 500 may include first gap preventing protrusions 530 to prevent the gaps between the two side frames 300 from being opened by the load when the food load is applied to the slide shelf 500. Can be.

The first gap preventing protrusions 530 may be inserted into the first gap preventing grooves 340 described later when the slide shelf 500 is withdrawn to the maximum. Thereby, both side frames 300 are connected via the slide shelf 500, and thus, the gap between the two side frames 300 can be prevented from being widened.

The first gap prevention protrusions 530 and the first gap prevention grooves 340 form a first gap prevention portion.

 In addition, in order to prevent the side frames 300 from mutually expanding during the movement of the slide shelf 500, third opening prevention protrusions 540 are formed on both sides of the slide shelf 500, respectively, and the side frames 300 The third gap preventing grooves 380 into which the third gap preventing protrusions 540 are slidably inserted may be formed.

The third gap preventing protrusions 540 may be elongated in the front-rear direction and protrude downward from the slide shelf 500. The third gap preventing grooves 380 are also formed long in the front-rear direction.

The third gap preventing protrusions 540 and the third gap preventing grooves 380 form a third gap preventing portion.

The folding shelf 600 may include an article support 601 supporting an article, and a support frame 602 provided to surround an edge of the article support 601. The article support 602 may have a tempered glass material.

A rotating shaft 640 protruding to both sides is formed at the rear of the folding shelf 600. The rotating shaft 640 may be inserted into the rotating shaft receiving portion 330 of the side frame 300. Therefore, the folding shelf 600 can rotate around the rear end.

The folding shelf 600 has third rails 610 that movably support the first rails 510 of the slide shelf 500 so that the slide shelf 500 can be drawn rearward. Each of the third rails 610 is formed to be long in the front-rear direction on both sides of the folding shelf 600.

Accordingly, the first rails 510 are supported by the second rails 310 of the side frames 300 when they are pulled out to the foremost direction, and are gradually drawn into the third rails of the folding shelf 600 ( 610).

In addition, the folding shelf 600 may have second gap preventing protrusions 620 and 621 to prevent the gap between the two side frames 300 from being opened by the load of the food supported by the folding shelf 600. have.

The second anti-split protrusions 620 may protrude downward from the front end of the left and right support frames 620 of the folding shelf 600, respectively, and the second anti-split protrusions 621 may each be left and right third rails. It may protrude downward from the front end of the field 610.

The second anti-split protrusions 620 may be inserted into the second anti-split grooves 350 described later, and the third anti-split protrusions 630 may be inserted into the second anti-split grooves 360 described later. Can be.

On the other hand, both side frames 300 of the fixed shelf 200 have second rails 310 formed long in the front-rear direction to support the first rails 510.

Stopper grooves 311 for fixing the position of the slide shelf 500 may be formed at the front end of the second rail 310 when the slide shelf 500 is pulled out to the front. The slide shelf 500 may be fixed by inserting the stopper protrusions 520 of the slide shelf 500 into the stopper grooves 311.

Guide parts 320 for guiding the movement of the slide shelf 500 may be provided at the upper portions of the second rails 310 when the slide shelf 500 slides in the front-rear direction.

In addition, the side frames 300, the folding shelf support 331 for supporting the folding shelf 600 in a state where the folding shelf 600 is unfolded, and the rotating shaft 640 of the folding shelf 600 rotate It has rotational shaft receiving portions 330 that are inserted as possible.

 In addition, the side frames 300 are provided with first gap preventing grooves 340, second gap preventing grooves 350 and 351, and third gap preventing grooves 380 to prevent mutual gaps from expanding. Includes.

Here, the third gap preventing grooves 380 are not integrally formed at the time of forming the side frames 300, and may be formed by separately combining the auxiliary frames 370 to the side frames 300. have. The auxiliary frames 370 may be an injection material, and may be firmly coupled to the side frames 300 through a screw S.

9 and 10 are views for explaining the operation of the cantilever shelf of the refrigerator of FIG.

As shown in FIG. 9, the slide shelf 500 of the cantilever shelf 100 can slide under the folding shelf 600 at the rear, and thus, the front both side frames 300 of the cantilever shelf 100 ), An open space is formed. Due to this open space, it is possible to store foods having a height or size that could not be stored before the slide shelf 500 was inserted.

As shown in FIG. 10, after the slide shelf 500 slides rearward, the folding shelf 600 can be rotated upwards along with the slide shelf 500, thereby allowing an open space that is wider in the front-rear direction. Can be obtained.

11 is a view showing a coupling structure of a cantilever shelf according to another embodiment of the present invention.

Referring to Figure 11 will be described in detail with respect to the coupling structure of the cantilever shelf 100 of the refrigerator 2 according to another embodiment of the present invention. The same reference numerals are assigned to the same components as in the exemplary embodiment, and detailed descriptions are omitted.

The refrigerator 2 according to another embodiment of the present invention includes a duct cover 910 coupled to the inside of the rear wall 19 of the storage room 21. The duct cover 910 may form the cold air duct 900 together with the rear wall 19 of the storage room 21. The cold air duct 900 serves to evenly guide the cold air generated in the evaporator (not shown) to the interior of the storage compartment 21. A cold air discharge hole 920 for discharging cold air is formed in the cold air duct 900.

The duct cover 910 may be formed to protrude forward toward the center from the outside. The duct cover 910 may be formed with a receiving groove 930 that can accommodate the shelf coupling portion 810. The receiving groove 930 may be formed at the center of the duct cover 910. The shelf coupling portion 810 may be inserted into and coupled to the receiving groove 930.

The shelf engaging portion 810 has a shelf hook groove 811 into which the coupling ring 410 of the cantilever shelf 100 is inserted and fixed. The shelf hanger groove 811 may be formed to be spaced apart from each other in the vertical direction to allow height adjustment of the cantilever shelf 100.

On the other hand, the shelf coupling portion 820 may be coupled to the inner surface of the rear wall 19 or the side walls 17 and 18 of the storage chamber 21 inner box 11. As an example, as shown in FIG. 11, the shelf coupling part 820 may be coupled to the inner surfaces of the rear wall 19 and the right wall 18 of the right corner of the storage compartment 21. The shelf coupling part 820 may have a shelf hook groove 821 into which the coupling ring 410 of the cantilever shelf 100 is inserted and fixed.

Although the technical idea of the present invention as described above has been described by specific embodiments, the scope of the present invention is not limited to these embodiments. Various embodiments that can be modified or modified by those of ordinary skill in the art without departing from the gist of the technical spirit of the present invention specified in the claims will also belong to the scope of the present invention.

1,2: refrigerator 10: main body
11: Inner box 12: Receptive home
13: trauma 15: insulation
16: Upper wall 17: Left wall
18: right wall 19: rear wall
20: intermediate bulkhead 21: refrigerator compartment
22: freezer 31,32: first door, second door
35: sliding door 37: filler device
50: ice making machine 80: shelf engaging portion
81: shelf hanger 90: sealed container
100: cantilever shelf 200: fixed shelf
201: article support 210: front frame
220: rear frame 300: side frame
301: Screw fastener 310: Second rail
311: stopper groove 320: guide portion
330: rotating shaft receiving portion of the folding shelf 331: folding shelf support
340: first gap prevention groove 350,351: second gap prevention groove
370: auxiliary frame 380: the third gap prevention groove
390: support bar 500: slide shelf
501: article support 502: support frame
510: first rail 520: stopper projection
530: 1st gap prevention protrusion 540: 3rd gap prevention protrusion
600: folding shelf 601: article support
602: support frame 610: third rail
620,621: 2nd gap prevention protrusion 640: rotating shaft
650: guide 700: hanger bracket
701: screw fastener 710: engaging ring
730: support bar fastener S: screw
810: Shelf engaging portion 811: Shelf hanger groove
820: shelf engaging portion 821: shelf hanger groove
900: cold air duct 910: duct cover
920: discharge hole 930: receiving groove

Claims (15)

main body;
A storage chamber formed inside the main body;
Shelf engaging portion provided on the inner rear of the storage compartment; And
Including; cantilever shelf is supported by being coupled to the shelf coupling portion,
The cantilever shelf
A fixed shelf with side frames;
Includes; slide shelf is slidably coupled to the fixed shelf;
The slide shelf
A rail protruding horizontally from a side of the slide shelf and being inserted in the horizontal direction to the side frame; And
A refrigerator comprising a; a protruding prevention protrusion that protrudes vertically from a side of the slide shelf and is inserted in a vertical direction into an anti-expansion groove provided in the side frame. According to claim 1,
The rail
It is inserted into the side frame to prevent the slide shelf from being displaced in the vertical direction from the side frame,
The gap prevention protrusion
The refrigerator is inserted into the gap prevention groove to prevent the slide shelf from being detached from the side frame in the left and right directions, and to prevent the side frames from being mutually opened by a load acting on the cantilever shelf. According to claim 2,
The opening prevention protrusion and the rail are refrigerators that extend along the movement direction of the slide shelf. According to claim 2,
The gap prevention protrusion protrudes downward from the slide shelf,
The side frame is a refrigerator supporting the gap prevention protrusion at a lower portion of the gap prevention protrusion. According to claim 2,
The rail is a first rail,
The side frame
A second rail supporting the first rail and a guide portion provided on the second rail,
The first rail
The refrigerator is inserted between the second rail and the guide portion to guide movement. According to claim 2,
The cantilever shelf
A refrigerator further comprising an auxiliary frame coupled to the side frame to form the gap preventing groove. The method of claim 6,
The gap prevention protrusion protrudes downward from the slide shelf,
The side frame supports the outer surface and the lower surface of the gap prevention protrusion, and the auxiliary frame supports the inner surface of the gap prevention protrusion. According to claim 3,
The gap prevention groove and the gap prevention protrusion are first gap prevention grooves and first gap prevention protrusions, respectively.
The slide shelf
A refrigerator further comprising a second gap preventing protrusion inserted in a vertical direction into a second gap preventing groove formed in the side frame when the cantilever shelf is withdrawn to the maximum. According to claim 3,
The cantilever shelf
A refrigerator provided at the rear of the slide shelf and further comprising a folding shelf rotatably coupled to the side frame. The method of claim 9,
The slide shelf is a refrigerator that can be drawn into the folding shelf. The method of claim 10,
The gap prevention groove and the gap prevention protrusion are first gap prevention grooves and first gap prevention protrusions, respectively.
The folding shelf
A refrigerator including a second gap preventing protrusion inserted in a vertical direction into a second gap preventing groove formed in the side frame when it is not folded. According to claim 2,
The cantilever shelf
Further provided on the side of the fixed shelf to support the fixed shelf further includes a hanger bracket having a coupling ring coupled to the shelf coupling portion,
The shelf coupling part
Refrigerator including a plurality of shelf hanger grooves are formed to be fixed to the coupling ring is inserted, spaced apart from each other in the vertical direction to enable height adjustment of the cantilever shelf. The method of claim 12,
A refrigerator having an accommodating groove through which the shelf coupling portion is accommodated is formed on a rear wall of the storage compartment. The method of claim 12,
The shelf engaging portion is a first shelf engaging portion,
A cold air duct that supplies cold air to the storage compartment,
A duct cover coupled to a rear wall of the storage chamber to form the cold air duct and a receiving groove formed therein;
A refrigerator further comprising a second shelf coupling portion accommodated in the accommodation groove. In the contile lever shelf is coupled to the shelf coupling portion is disposed in the storage compartment of the refrigerator,
A fixed shelf with side frames;
A hanger bracket provided on a side of the fixed shelf to support the fixed shelf and having a coupling ring coupled to the shelf coupling portion;
A slide shelf slidably coupled to the side frame;
It includes a folding shelf that is rotatably coupled to the side frame, the slide shelf can be drawn;
The slide shelf
A rail protruding horizontally from the side of the slide shelf, and inserted in the horizontal direction to the side frame to prevent the slide shelf from being displaced in the vertical direction from the side frame; And
A cantilever comprising a; an anti-expansion protrusion that protrudes vertically from a side of the slide shelf and is inserted vertically into an anti-expansion groove provided in the side frame so as to prevent the slide shelf from being displaced in the left and right directions from the side frame. shelf.

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