KR101761399B1

KR101761399B1 - A refrigerator and shelf height adjustment apparatus for refrigerator

Info

Publication number: KR101761399B1
Application number: KR1020080129087A
Authority: KR
Inventors: 곽영훈; 박철준; 박상후
Original assignee: 엘지전자 주식회사
Priority date: 2008-12-18
Filing date: 2008-12-18
Publication date: 2017-07-25
Also published as: KR20100070512A

Abstract

According to an embodiment of the present invention, there is provided an information processing apparatus including a main body in which a storage space is formed; A grill fan for dividing the inside of the storage space into front and back and guiding the cool air; A shelf height adjusting device provided at the rear of the grill pan and vertically moved by operation of an operation switch provided at one side of the main body; And a variable shelf provided in the storage space and detachably mounted on the shelf height adjusting device so as to penetrate the grill pan, wherein the shelf height adjusting device comprises: a mounting frame on which a shelf is mounted and fixed; A driving motor mounted on the mounting frame; A plurality of pinions vertically arranged to be interlocked with the rotation axis of the drive motor; A rack member fixed to the grill pan or the main body and gear-engaged with the pinion to move the mounting frame up and down; And a guide member provided on both left and right sides of the mounting frame for limiting the vertical movement and the vertical movement distance of the mounting frame.

Refrigerator, shelf, height adjustment, frame

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and a shelf height adjusting apparatus for refrigerator,

The present invention relates to a refrigerator and a refrigerator shelf height adjusting device.

2. Description of the Related Art Generally, a refrigerator is a household appliance that allows food to be stored at a low temperature in an internal storage space that is shielded by a door. The refrigerator is stored by cooling the inside of the storage space using cool air generated through heat exchange with a refrigerant circulating in a refrigeration cycle It is configured to store foods in optimal condition.

Such a refrigerator is in a trend of becoming larger and multifunctional as the dietary change and user 's taste are diversified, and the shape of the refrigerator is also becoming various according to the configuration of the storage space.

The shelves, drawers, and baskets provided in the refrigerator can store various foods for refrigeration or freeze storage. The drawers, the shelves, and the baskets are divided into a high temperature storage room and a low temperature storage room .

On the other hand, the lathe dividing the inside space can be changed variously by changing the mounting position thereof, and the user can adjust the mounting position of the shelf so as to accommodate containers of various sizes of food or food, Thereby constituting an appropriate space.

The most typical mounting structure of such a shelf has a structure in which a forming step is formed on the right and left side wall surfaces of the hanger and a shelf is placed thereon. A guide having a plurality of holes formed in the rear wall surface of the hanger is provided, And a shelf having a coupling part is coupled to the shelf so as to mount the shelf in the form of a cantilever. However, in such a structure, it is necessary to separate and reassemble the shelf to adjust the height of the shelf, which is inconvenient to use.

To solve this problem, there has been developed a refrigerator which can easily adjust the height of the shelf while the shelf is mounted.

Korean Patent Laid-Open Publication No. 1999-0074676 discloses a control apparatus for a vehicle having a drive means for rotating forward and backward in accordance with an operation of an operation switch, a worm shaft rotated in normal and reverse directions according to the operation of the drive means, a support member having gears meshed with the worm shaft, A shelf lifting device of a refrigerator including a guide plate coupled to a support member and lifted and lowered according to a rotation operation of a gear and a shelf detachably coupled to the guide plate is disclosed.

Korean Patent Laid-Open Publication No. 1999-0074425 discloses a drive system for a vehicle having a drive means for rotating forward and backward according to an operation of an operation switch, a worm shaft rotated in normal and reverse directions by the operation of a drive motor, There is disclosed a shelf device for a refrigerator including a guide plate coupled and fixed to a lifting plate and a shelf detachably coupled to the guide plate.

An object of the present invention is to provide a grinding machine which is provided on the rear side of a grill pan and in which a variable lathe is mounted through the grill pan and is moved up and down by a rack member which is engaged with a plurality of pinions interlocked with a driving motor provided on a mounting frame And a refrigerator having a height adjusting device.

It is another object of the present invention to provide a driving motor provided with a mounting frame on which a lathe is detachably mounted and having a plurality of pinions, and a mounting frame is vertically moved by a rack member engaged with a pinion, The height of the shelf is adjusted.

A refrigerator according to an embodiment of the present invention includes a main body in which a storage space is formed; A shelf detachably provided inside the storage space and having hooks protruding from both rear ends thereof; A grill fan that divides the inside of the storage space into a space through which cool air flows and a storage space; A plurality of mounting slots formed on the grill pan for selectively inserting the hook portions, the plurality of mounting slots being opened continuously in the longitudinal direction along both sides of the grill pan, and the shelves being detached; A guiding slot formed on the grill pan for selectively inserting the hanger portion, the guiding slot opening upwardly and downwardly with a length corresponding to a vertical movement distance of the shelf on the same extension line as the mounting slot to form a movement path of the shelf; And a shelf height adjusting device disposed in a space through which cool air flows behind the grill pan and blocked by the grill pan, wherein the shelf height adjusting device includes a pinion for generating rotational power, absence; A mounting frame on which the driving member is mounted; A mounting hole formed at both sides of the mounting frame facing the guide slot, the mounting hole being inserted into the guide slot through the guide slot to detachably mount the shelf; A rack member fixed to the grill pan or the main body and gear-engaged with the pinion to move the mounting frame up and down; A slider mounted on both left and right sides of the mounting frame; And a guide member provided on both sides of the slider and guiding the up and down movement of the mounting frame by receiving the slider, wherein the guide slot is disposed above, below, or between the mounting slots And the shelf is inserted into the guide slot or the mounting slot of the shelf so that the height of the shelf can be adjusted by lifting and detaching.
A plurality of the pinions are provided, and the plurality of pinions are arranged on the same extending line in the longitudinal direction of the rack member.
The guide member may include a mounting portion for receiving the slider and a movement restricting portion protruding inward from an upper end and a lower end of the mounting portion and restricting up and down movement of the mounting frame.
The mounting portion is provided with a slider guide which is received in the inside of the mounting portion and which is opened up and down so that the slider is moved up and down with the slider inserted therein.
And the slider guide is bent so that at least two surfaces contact the slider.
And the slider is mounted on both side edges of the mounting frame.

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According to the refrigerator and the refrigerator shelf height adjusting apparatus of the present invention, since the shelf is detachably mounted to the mounting frame of which the height can be adjusted, It is possible to construct a space according to the detachment of the shelf so that it is possible to produce various spaces.

Therefore, it is possible to expect an effect of increasing the convenience of use by accommodating products of various sizes by varying the spatial configuration of the inside of the refrigerating compartment.

A driving motor is provided in a mounting frame for adjusting the height of the shelf, and a plurality of pinions are provided in the driving motor to move the mounting frame up and down while moving up and down along the rack member.

Therefore, the height adjustment of the shelf is transmitted by the plurality of pinions, so that the left and right flows are not generated and can be stably performed.

In addition, the guide member includes a slider of plastic material provided on the left and right sides of the main frame and a slider guide which is received in a face-to-face contact relationship with the slider, so that the shelf can be stably and smoothly moved up and down, .

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the scope of the present invention to the embodiment shown, and that other embodiments falling within the scope of the present invention may be easily devised by adding, Can be proposed.

FIG. 1 is a perspective view showing a contour of a refrigerator according to an embodiment of the present invention, and FIG. 2 is a front view showing a door of a refrigerator opened according to an embodiment of the present invention.

Referring to FIG. 1, a refrigerator 1 is formed in a substantially rectangular parallelepiped shape. The refrigerator 1 includes a main body 10 having a storage space therein and a door 20 for selectively shielding the opened front of the main body 10. .

The interior of the main body 10 is divided into upper and lower portions by the barrier 12 to form the refrigerating chamber 30 and the freezing chamber 40, respectively. The door 20 includes a refrigerating chamber door 22 for blocking the refrigerating chamber 30 and a freezing chamber door 24 for blocking the freezing chamber 40. The refrigerator compartment door 22 is constituted by a pair of doors 20 and is configured to be opened and closed by pivoting to both sides of the refrigerator compartment door 24. The freezer compartment door 24 is pulled out from the front and rear in a drawer type, .

A plurality of shelves 100 and drawers 50 for storing food are provided in the main body 10 and a plurality of baskets 26 are mounted on the rear surface of the door 20, The food can be stored on the back side of the food.

Particularly, the shelf 100 and the drawers 50 provided in the refrigerating compartment 30 are divided into left and right sides in the refrigerating compartment 30, and they can be independently adjusted in height, So that it is possible to produce various spaces.

FIG. 3 is a front view of a shelf according to an embodiment of the present invention.

Referring to the drawings, the shelf 100 is provided inside the refrigerating chamber 30 and is mounted on the inner rear wall in a cantilever fashion. The shelf 100 is detachably attached to the shelf frame 110 and forms an outer shape. The shelf 100 is selectively mounted on the inside of the shelf 100. The shelf 100 is seated on the shelf frame 110 to form a surface on which food can be seated And a shelf plate (120).

The plurality of shelves 100 to be installed in the furnace are divided into a fixed shelf 130 and a variable shelf 140 according to positions where they are installed in the same structure. The fixed shelf 130 is adjustable in height by being detached and attached to a general shelf. The variable shelf 140 is mounted on the shelf height adjuster 300, which will be described in detail below, So that the height can be adjusted without detachment.

Each of the shelves 100 is detachable through a grill pan 200 that divides the inside of the storage space in which the refrigerating compartment 30 is formed back and forth. Also, according to the user's needs, the plurality of shelves 100 can be changed in installation height on the grill pan 200, and various spaces can be produced.

The grill pan 200 forms an inner rear wall of the refrigerating compartment 30 and is formed in a rectangular plate shape when viewed from the front. The grill pan 200 is disposed at left and right sides of the refrigerating compartment 30 and is spaced apart from the inner rear wall of the main body 10 so as to be able to move the cool air through the rear space of the grill pan 200 do.

That is, the inside of the storage space where the refrigerating compartment 30 is formed by the grill fan 200 can be divided into front and rear, the space in front of the grill pan 200 is formed with a storage space, 200 are provided with a space through which cool air supplied from an evaporator (not shown) provided on one side of the main body 10 can flow.

The grill pan 200 may have a channel and a discharge port formed therein so as to be able to supply cold air to various positions inside the refrigerating chamber 30. A duct (not shown) Or may be provided in the space behind the fan 200. [

In addition, in the space behind the grill pan 200 formed by the grill pan 200, a plurality of configurations of the shelf height adjuster 300 can be arranged as shown in FIG.

Mounting slots 210 and guide slots 220 for mounting a plurality of shelves 100 are formed on the right and left sides of the grill pan 200. The mounting slots 210 and guiding slots 220 are disposed at the left and right ends of the grill pan 200, respectively. At this time, a plurality of the mounting slots 210 are continuously arranged, and the mounting slots 210 may be formed above and below the guide slots 220 or both.

The mounting slot 210 has a plurality of hooks 112 protruding from the rear end of the fixed shelf 130 and inserted into the hooks 112 so that the hooks 112 can be inserted therein. Accordingly, the user can select the mounting height of the fixed shelf 130 according to the position of the mounting slot 210 into which the hooking part 112 is inserted.

The guide slot 220 is formed in the mounting slot 210 so as to be inserted into the mounting frame 400 through the rear end of the hooking portion 112. The guide slot 220 is formed on the extension of the mounting slot 210, And is formed by being perforated in the vertical direction. The guide slot 220 is formed to have a length corresponding to a distance by which the variable lathe 140 can be moved up and down. When the variable lathe 140 is vertically moved, Thereby forming a vertical movement path.

FIG. 4 is an exploded perspective view showing a structure of a shelf height adjusting apparatus according to an embodiment of the present invention, and FIGS. 5 and 6 are operational states showing a vertical movement of a shelf height adjusting apparatus according to an embodiment of the present invention. Referring to these drawings, the configuration of the shelf height adjuster 300 will be described in detail.

The lathe height adjusting device 300 is disposed at the rear of the grill pan and includes a mounting frame 400 and a drive motor 500. The pinion 510, the rack member 610, the slider 420, 730, a guide member 700, and a fixing member 600.

In detail, the mounting frame 400 is provided in a space formed behind the grill pan 200 by mounting the variable lathe 140, and the pinion 510 and the rack member 610, which will be described below, And is configured to be movable up and down by engagement.

More specifically, the mounting frame 400 is formed to be larger than the width of the variable lathe 140 in the widthwise direction, and is formed into a block having a rectangular shape elongated in the transverse direction when viewed from the rear, .

In order to facilitate the flow of cool air through the mounting frame 400, the inside of the mounting frame 400 is hollow and the upper and lower surfaces thereof are opened to allow smooth movement of the cool air through the mounting frame 400 Lt; / RTI >

Mounting holes 410 are formed on the left and right sides of the front surface of the mounting frame 400, respectively. The mounting hole 410 is formed to be inserted into the fixing shelf 140 or the fixing shelf 130 so that the fixing hole 112 is inserted and fixed.

The mounting holes 410 may be provided on the left and right sides of the mounting frame 400 and may be selectively inserted into the mounting holes 410 or detachable from the mounting holes 410, 140 can be attached and detached.

A drive motor 500 is mounted at a substantially central portion of the rear surface of the mounting frame 400. The drive motor 500 provides rotational power for the vertical movement of the variable lathe 140, and an electric motor can be used.

The drive motor 500 can be driven by an operation switch 32 provided in the cabin, and is configured to be capable of normal / reverse rotation in accordance with the operation of the operation switch 32. [ The driving motor 500 is configured to be automatically stopped by a load applied when the movement restricting portion 720 and the mounting frame 400 are brought into contact with each other.

A plurality of pinions 510 are mounted on the driving motor 500. The pinion 510 is directly or indirectly connected to the rotating shaft of the driving motor 500 so as to be rotatable according to the driving of the driving motor 500 and is configured to be capable of being engaged with the rack member 610 .

The plurality of pinions 510 are arranged in the vertical direction and are arranged at equal intervals on the same extension line. The plurality of pinions 510 are capable of supporting the rack member 610 at a plurality of upper and lower positions of the rack member 610 when the rack member 610 is coupled with the rack member 610, In the vertical direction.

A plurality of driving motors 500 may be mounted on the rotating shaft of each driving motor 500 so that the pinions 510 may be disposed on the same extension line. The arrangement of the driving motor 500 can be adjusted.

A locking member 600 for fixing the rack member 610 and the rack member 610 is provided at the rear of the driving motor 500. The rack member 610 guides a vertical movement of the mounting frame 400 and is formed to have a length corresponding to a vertical movement distance of the variable lathe 140, that is, a vertical movement distance of the mounting frame 400 do.

The rack member 610 is formed to be fixed in a rear space of the grill pan 200 by a fixing member 600 to be described below and a gear portion coupled with the pinion 510 is formed in a left- Respectively. Therefore, when the driving motor 500 is driven, the pinion 510 can move up and down along the rake member 610.

The fixing member 600 may be fixed to the pinion 510 in a gear-engaged state. The fixing member 600 may be bent to have a substantially 'C' shape when viewed from the side, The rack member 610 is disposed between the upper and lower bent portions.

The fixing member 600 is fixed to the rear of the grill pan 200 or fixed to the rear wall of the main body 10 so that the rack member 610 is fixed when the pinion 510 is relatively moved. So that the position can be maintained.

Meanwhile, sliders 420 are provided on both left and right sides of the mounting frame 400. The slider 420 smoothly moves the mounting frame 400 up and down, and is configured to be in surface contact with a slider guide 730 described below.

The slider 420 is formed of a plastic material. In detail, the slider 420 may be formed of an engineering plastic such as a POM material having excellent abrasion resistance and lubricity, and may be formed of a plastic material impregnated with oil.

The slider 420 may be mounted on the left and right edges of the mounting frame 400. The slider 420 is formed to have an approximately 'C' shape when viewed from above, and has a height corresponding to the height of the mounting frame 400.

A guide member 700 for guiding upward and downward movement of the mounting frame 400 and for limiting the vertical movement distance of the mounting frame 400 is formed on both left and right sides of the mounting frame 400.

In detail, the guide member 700 is fixedly mounted on the rear surface of the grill pan 200 or fixedly mounted on the rear and rear wall surfaces of the grill pan 200 rearward. The guide member 700 is elongated vertically and includes a mounting portion 710 to which a slider guide 730 to be described later is mounted and a movement limiting portion 720 protruding inward from upper and lower sides of the mounting portion 710, .

The mounting portion 710 provides a space for mounting the slider guide 730 and is formed to be vertically long and has a length corresponding to the vertical moving distance of the mounting frame 400.

The slider guide 730 receives the slider 420 and is fixed to the mounting portion 710 of the guide member 700 so as to move up and down relative to the slider 420.

In detail, the slider guide 730 is formed of a metal material, and a plate-like material is bent so that at least a part of the slider 420 can be received inside. The slider guide 730 is formed to open upward and downward and has a length corresponding to the length of the mounting portion 710.

The slider guide 730 is formed such that at least two surfaces such as both sides and rear surfaces of the slider 420 mounted to protrude from the mounting frame 400 are in contact with the slider guide 730. Inside the slider guide 730, (420) is moved up and down in a state of surface contact with the slider guide (730).

The movement restricting portion 720 of the guide member 700 protrudes inward from the upper end and the lower end of the mounting portion 710. Therefore, when the mounting frame 400 is moved upward or downward, the upper or lower end of the mounting frame 400 can contact the movement restricting part 720, and the movement restricting part 720 When the mounting frame 400 is touched, movement of the mounting frame 400 is restricted and it is no longer possible to move upward or downward.

Hereinafter, the operation of the refrigerator according to the embodiment of the present invention will be described.

The user can adjust the height of the variable lathe 140 by operating the operation switch 32 while the variable lathe 140 is mounted on the inside of the refrigerator 1. [

That is, when the operation switch 32 is pressed to adjust the height of the variable lathe 140, the driving motor 500 is operated, and the operation of the driving motor 500 causes the plurality of pinions 510 ) Are simultaneously rotated.

The plurality of pinions 510 are capable of transmitting a more reliable rotational force to the rack member 610 in a state of being in contact with the upper and lower portions of the rack member 610, And is held in contact with a plurality of points of the rack member 610 so that no flow occurs during movement.

Accordingly, when the plurality of pinions 510 are gear-engaged with the rack member 610, the mounting frame 400, on which the driving motor 500 is mounted, And can be moved in the vertical direction.

That is, when the driving motor 500 is driven, the mounting frame 400 is moved in the vertical direction according to the guide of the rack member 610, and the variable lathe also moves up and down So that the height of the variable lathe 140 can be adjusted.

As the mounting frame 400 is moved up and down, the slider 420 mounted on the mounting frame 400 is moved upward and downward while being accommodated inside the slider guide 730. At this time, the slider 420 slides in a state of being in surface contact with the slider guide 730.

Accordingly, the mounting frame 400 is more stably restricted from flowing in the left-right direction, and the mounting frame 400 is guided to move smoothly in the vertical direction.

Meanwhile, the variable lathe 140 may be variously installed according to the spatial configuration of the refrigerating chamber 30 desired by the user.

For example, the upper and lower spaces of the shelf 100 can be set by inserting the fixed shelf 130 mounted on the mounting slot 210 into a desired one of the plurality of mounting slots 210. The variable shelf 140 mounted on the mounting frame 400 after passing through the guide slot 220 can set the upper and lower spaces of the fixed shelf 130 by operating the operation switch 32 .

Accordingly, the user can set the upper and lower spaces by adjusting the height of the fixed shelf 130 and the variable shelf 140, thereby enabling a space capable of accommodating foods having various heights to be produced.

The variable shelf 140 has the same structure as the fixed shelf 130 so that the variable shelf 140 mounted on the mounting frame 400 is removed and the variable shelf 140 is mounted on the mounting slot 210. [ (140).

The space inside the refrigerating chamber (30) can be further diversified by selectively mounting the shelves (100) mounted on the mounting slot (210) and the mounting frame (400). That is, the shelf 100 mounted on the mounting frame 400 may be selectively removed to realize a wider space.

1 is a perspective view showing the external shape of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a front view showing a door of a refrigerator opened according to an embodiment of the present invention; FIG.

FIG. 3 is a front view of a shelf according to an embodiment of the present invention. FIG.

FIG. 4 is an exploded perspective view showing a configuration of a shelf height adjusting apparatus according to an embodiment of the present invention; FIG.

FIG. 5 and FIG. 6 are operational states showing the vertical movement of the shelf height adjusting apparatus according to the embodiment of the present invention.

Claims

A body in which a storage space is formed;

A shelf detachably provided inside the storage space and having hooks protruding from both rear ends thereof;

A grill fan that divides the inside of the storage space into a space through which cool air flows and a storage space;

A plurality of mounting slots formed on the grill pan for selectively inserting the hook portions, the plurality of mounting slots being opened continuously in the longitudinal direction along both sides of the grill pan, and the shelves being detached;

A guiding slot formed on the grill pan for selectively inserting the hanger portion, the guiding slot opening upwardly and downwardly with a length corresponding to a vertical movement distance of the shelf on the same extension line as the mounting slot to form a movement path of the shelf;

And a shelf height adjusting device disposed in a space through which cool air flows behind the grill pan and is obscured by the grill pan,

The shelf height adjusting device comprises:

A driving member for generating a rotational power and provided with a pinion interlocked with a rotating shaft;

A mounting frame on which the driving member is mounted;

A mounting hole formed at both sides of the mounting frame facing the guide slot, the mounting hole being inserted into the guide slot through the guide slot to detachably mount the shelf;

A rack member fixed to the grill pan or the main body and gear-engaged with the pinion to move the mounting frame up and down;

A slider mounted on both left and right sides of the mounting frame;

And guiding members provided on both sides of the slider and guiding the up and down movement of the mounting frame by receiving the slider,

The guide slot is disposed above, below, or between the mounting slots,

Wherein the shelf is inserted into the guide slot or the mounting slot so that the height of the shelf can be adjusted by lifting and lowering.

The method according to claim 1,

Wherein a plurality of the pinions are provided,

And the plurality of pinions are arranged on the same extending line in the longitudinal direction of the rack member.

The method according to claim 1,

The guide member

A mounting portion in which the slider is received,

And a movement restricting portion protruding inward from an upper end and a lower end of the mounting portion and restricting up and down movement of the mounting frame.

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The method of claim 3,

Wherein the mounting portion is provided with a slider guide accommodated inside the mounting portion and vertically opened and vertically moved with the slider inserted therein.

6. The method of claim 5,

Wherein the slider guide is bent so that at least two surfaces of the slider are in contact with each other.

The method according to claim 1,

Wherein the slider is mounted on both side edges of the mounting frame.

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