KR102464474B1 - Refrigerator - Google Patents

Abstract

An embodiment of the present invention relates to a refrigerator, comprising: a cabinet having an upper storage space and a lower storage space; a door unit for opening and closing the lower storage space by drawing in and out; a drawer unit connected to the door unit and pulled out from the lower storage space; a support member provided in the drawer, on which food or a container is seated; a motor assembly provided in the door unit and providing power; and a lifting device extending from both side surfaces of the drawer unit in a direction crossing the withdrawal direction of the door, coupled to both sides of the support member, and elevating the support member by power transmitted from the motor assembly.

Description

refrigerator { Refrigerator }

The present invention relates to a refrigerator.

BACKGROUND ART In general, a refrigerator is a home appliance that can store food at a low temperature in an internal storage space that is shielded by a door. To this end, the refrigerator is configured to store the stored food in an optimal state by cooling the inside of the storage space using cold air generated through heat exchange with the refrigerant circulating in the refrigeration cycle.

Recently, refrigerators are gradually becoming larger and multifunctional in accordance with changes in dietary habits and the trend of high-end products. .

The storage space of the refrigerator may be opened and closed by a door. In addition, the refrigerator may be classified into various types of refrigerators according to the arrangement of the storage space and the structure of a door that opens and closes the storage space.

The refrigerator door may be classified into a pivot-type door that opens and closes a storage space by pivoting, and a drawer-type door that opens and closes a drawer in a drawer-type manner.

In addition, the drawer-type door is often disposed in the lower area of the refrigerator. When the drawer-type door is disposed in the lower area of the refrigerator, one has to bow down to take out the basket or food accommodated in the drawer-type door, the basket or If the weight of the food is heavy, it may feel uncomfortable to use the basket more or cause injury.

In order to solve this problem, various structures in which the drawer-type door can be raised and lowered have been developed.

Representatively, Korean Patent Laid-Open Publication No. 10-2008-0101335 discloses a structure in which a storage container that can be moved up and down is provided on the rear surface of a door that is drawn in and out. However, in such a structure, the connection portion between the door and the storage container is exposed, and the electric device and the structures for elevating are exposed so that there is a serious problem in safety in use.

In addition, the force for actually lifting and lowering the storage container is applied at the front end of the storage container, and when food is stored in the storage container, the stable lifting action of the storage container is difficult due to the eccentric load applied to the storage container, as well as the door and There is a problem that serious deformation and damage of the storage container may occur.

In addition, Korean Patent Laid-Open No. 10-2006-0053420 discloses a structure in which a basket is raised and lowered by an operation of a support member provided in a door. In such a structure, the support member has a structure that is exposed as it is from the rear and lower surfaces of the door, so there is a problem in safety in use.

In addition, since it has a structure for lifting the basket from the front of the door, the basket may be dropped when a load is present in the second half of the basket, and there is a problem in that it is impossible to provide an effective and stable support and elevating structure.

And, in Korean Patent Laid-Open No. 10-2006-0031113, a fixed frame and a movable frame are provided on the rear surface of the door, and pneumatic cylinders are provided on both sides of the fixed frame, so that the movable frame fixed to the basket is raised and lowered so that the basket can be raised and lowered. A structure is disclosed.

However, if precise control of the pneumatic cylinders provided on both sides is not performed, the basket may be tilted. In particular, when an eccentric load is provided to the basket, the eccentricity of the basket becomes a serious problem that makes it impossible to lift the basket. can

In addition, even in such a structure, the pneumatic cylinder may be exposed to both left and right sides, which may cause a safety problem, and a problem in that the internal volume of the basket is reduced by the pneumatic cylinder and the movable frame disposed on both sides may occur.

And, in such a prior art, the basket forming the storage space or all components corresponding to the basket are raised and lowered, and in this structure, the load may be eccentric depending on the arrangement of food in the storage space, and the imbalance occurs during the lift. There is a problem that arises.

In addition, in order for the entire basket to be raised and lowered, the basket must be completely withdrawn from the storage space in the refrigerator. There is a necessary problem. In particular, such a problem may be exacerbated when components for lifting and lowering are arranged on the door side.

It is an object of the present invention to provide a refrigerator in which a part of the interior of a drawer door drawn out in a drawer type is raised and lowered to improve user convenience.

In an embodiment of the present invention, elevating assemblies for elevating the support member on which the food is seated inside the drawer door are provided on both sides of the drawer door so that the support member can be lifted without inclination, thereby providing stability and operation An object of the present invention is to provide a refrigerator capable of improving reliability.

An object of the present invention is to provide a refrigerator in which an electric device for lifting and lowering is disposed on a door part of a drawer door, and a mechanism part connected to the electric device for lifting and lowering operation is disposed in the drawer part, so that safety is improved.

SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator capable of improving the appearance and safety of use by preventing an electric device and a mechanical part for elevating from being exposed to the outside as a whole.

An embodiment of the present invention. An object of the present invention is to provide a refrigerator configured to enable selective separation and coupling between a drawer unit in which a mechanism unit is disposed and a door unit in which an electric device is provided, thereby improving assembly workability, cleaning properties, and serviceability.

It is an object of the present invention to provide a refrigerator that is configured to be able to move up and down in a state where only a part of the first half of the drawer is exposed without the need for the entire drawer to be pulled out, so that the drawer can be moved up and down in a stable drawer state.

In an embodiment of the present invention, a refrigerator capable of securing a stable lifting operation of the support member by providing elevating assemblies for lifting and lowering the support member on both sides of the support member and is configured to be coupled to the central portions of both sides of the support member aims to provide

It is an object of the present invention to provide a refrigerator that can have a structure in which the support member can be moved up and down while minimizing the loss of storage space inside the drawer door.

It is an object of the present invention to provide a refrigerator that has a clean and beautiful appearance by minimizing exposure of a structure for elevating and lowering.

An object of the present invention is to provide a refrigerator in which appearance and safety are improved by having a structure capable of shielding lifting assemblies disposed on both sides for lifting and lowering a support member.

A refrigerator according to an embodiment of the present invention is characterized in that a support member that lifts and lowers is provided inside a drawer that opens and closes a storage space by drawing in and out, and a food or container is seated on the support member.

Elevating devices coupled to both sides of the support member to elevate the support member are provided on both sides of the drawer unit, and the lifting devices on both sides may be simultaneously driven by power transmitted from the motor assembly.

The motor assembly may have a door-side shaft extending to both sides, and the lifting device may have a drawer-side shaft, and the door-side shaft and the drawer-side shaft are connected to each other in a crossed state to transmit power. do.

In the refrigerator according to an embodiment of the present invention, an electric device including a motor assembly is disposed on a door that opens and closes a storage space by taking-in and taking-out, and the motor is pulled out and pulled out together with the door part and the motor is in a drawer forming an accommodation space for food. It is possible for a mechanism structure to be arranged, including a hoisting device driven by the assembly to be raised and lowered.

The motor assembly may be provided inside the door, and the lifting device may be disposed on the inner surface of the drawer unit to have a structure in which the lifting assembly is not entirely exposed to the outside.

The motor assembly of the door unit is shielded by a door cover, and a plurality of metal plates are mounted on the drawer unit to shield the internal and external components of the drawer unit, including the lifting device, and to form inner and outer surfaces of the drawer unit.

A rail cover may be provided in the elevating device to prevent exposure of the elevating shaft inside the elevating device, and the rail cover and the metal plate may be formed of the same material.

The support member provided inside the drawer is formed to have a size corresponding to the front space of the first half of the drawer, and the front space and the support member of the drawer are completely drawn out of the cabinet, and a part of the rear space of the drawer is It is possible to have a structure located inside the cabinet.

A refrigerator according to an embodiment of the present invention includes: a cabinet having an upper storage space and a lower storage space; a door unit for opening and closing the lower storage space by drawing in and out; a drawer unit connected to the door unit and pulled out from the lower storage space; a support member provided in the drawer, on which food or a container is seated; a motor assembly provided in the door unit and providing power; and a lifting device extending from both side surfaces of the drawer unit in a direction crossing the withdrawal direction of the door, coupled to both sides of the support member, and elevating the support member by power transmitted from the motor assembly.

The drawer unit may include at least a bottom surface and side portions extending vertically from both ends of the bottom surface, and the lifting device may be provided on the side portion.

It is possible that a mounting portion recessed to accommodate the elevating device is formed inside the drawer unit.

The lifting device may include: a housing mounted on an inner surface of the drawer unit; an elevating shaft rotatably mounted inside the housing by power transmitted from the motor assembly and having a thread formed on an outer circumferential surface; and an elevating holder penetrating from the inside of the housing by the elevating shaft and elevating along the elevating shaft, wherein the elevating holder is connected to both ends of the support member, and can be elevated together with the support member.

A stepped space may be formed on the inner surface of the housing, and the lifting holder may be formed in a shape corresponding to the stepped space.

The elevating device may further include a rolling member between the housing and the elevating holder to guide the elevating of the elevating holder in contact with the inner surface of the housing and the outer surface of the elevating holder.

The housing includes a central portion recessed at a position corresponding to the lifting shaft, a side portion formed to be stepped from the central portion on both sides of the central portion, and side portions accommodating both sides of the lifting holder, and the rolling member is the side portion It is possible to be located in

The lifting holder includes a shaft penetrating part through which the lifting shaft passes, a shaft penetrating part accommodated in the central part, a side extension part extending to both sides of the shaft penetrating part, and being accommodated inside the side part and in contact with the rolling member, It is possible to include a bracket mounting part that protrudes to the outside of the housing and is connected to the support member.

A connection bracket for connecting the support member and the elevating holder is mounted on the bracket mounting part, and the connection bracket includes a rail coupling part coupled to the bracket mounting part by a separate coupling member, and a lower end of the rail coupling part. , it is possible to include a support member coupling portion on which the support member is detachably seated.

It is mounted to penetrate the space opened in the vertical direction inside the elevating holder and includes a rail cover for shielding the opening of the housing, wherein the elevating holder can be moved up and down along the rail cover.

It is possible that a plurality of plates formed of the same material as the rail cover and forming an inner exterior of the drawer unit may be provided on inner and outer surfaces of the drawer unit.

The support member may include a lifting frame having both sides connected to the lifting device, respectively, and having a frame shape corresponding to the shape of the bottom surface of the drawer unit.

The support member may include a plate-shaped lifting plate mounted on the lifting frame to shield the frame.

It is simple that the drawer part is formed in a box shape with an open upper surface so that the support member can be accommodated therein.

The inside of the drawer part is disposed in the front with respect to the front-rear direction in which the door is drawn out, and includes a front space in which the support member is disposed, and a rear space disposed in the rear of the front space, and the drawer part is the The front space is drawn out to be located outside the lower storage space, and in this case, at least a portion of the rear space may be located inside the lower storage space.

A refrigerator according to an embodiment of the present invention includes: a cabinet in which an upper storage space and a lower storage space are formed; a door unit for opening and closing the lower storage space; a drawer unit connected to the door unit and pulled out together; a support member provided inside the drawer, on which food or a container is seated; a motor assembly provided in the door part; a pair of lifting devices provided on both sides of the drawer unit and coupled to both ends of the support member to elevate the support member; It is possible to include a pair of drawer-side shafts extending from one end of the drawer unit facing the rear surface of the door unit to be connected to the elevating device and transmitting the power of the motor assembly to the elevating device.

A pair of the motor assembly may be provided, and may be provided on both sides of the rear surface of the door unit so as to be respectively connected to the pair of drawer-side shafts.

It is possible to further include a door-side shaft that is rotatably connected to the motor assembly and has both extended ends connected to the drawer-side shaft to transmit power of the motor assembly.

The door-side shaft is configured as a single shaft and passes through the motor assembly, and both ends of the door-side shaft are connected to the drawer-side shaft by a gear to simultaneously rotate at the same rotational speed.

The end of the door-side shaft and the drawer-side shaft are disposed perpendicular to each other, and are connected by gears that are rotated in engagement with each other and rotate together.

The lifting device may include: a housing mounted on an inner wall surface of the drawer unit; an elevating shaft rotatably disposed in the housing, having a screw thread formed on an outer circumferential surface and extending in the vertical direction; It is possible to include a; it is mounted to be lifted along the lifting shaft from the inside of the housing, the lifting holder connected to both ends of the support member.

A drawer-side gear is provided at one end of the drawer-side shaft, and an elevating gear is provided in the elevating shaft, and the drawer-side gear and the elevating gear may be gear-coupled in a direction crossing each other inside the housing.

The housing may have an insertion hole having a shape corresponding to the drawer-side shaft and the drawer-side gear so that the lifting gear can be engaged with the drawer-side gear from the inside of the housing.

A shaft mounting portion on which the drawer-side shaft is mounted is formed on an outer surface of the drawer portion, and a mounting portion on which the elevating device is mounted is formed on an inner surface of the drawer portion, and the shaft mounting portion and the mounting portion may pass through the drawer-side shaft. It is possible to communicate so that

Plates are provided on the inner and outer surfaces of the drawer unit in the form of a plate of a metal material to form the inner and outer surfaces of the drawer unit, and the plate shields the shaft mounting unit, the mounting unit, and the pull-out rail. it is possible to do

In the refrigerator according to the proposed embodiment, the following effects can be expected.

The refrigerator according to an embodiment of the present invention is configured such that a portion of the storage space inside the drawer door can be moved up and down while the drawer door is drawn out. Accordingly, since the user does not need to bend the waist excessively when storing food inside the drawer door disposed below, the convenience of use can be improved.

In particular, in order to lift heavy food or a container in which the food is stored, a user must apply a lot of force to lift the food or container, but the support member inside the drawer door is raised to a convenient position by driving the lifting assembly. By doing so, there is an advantage in that it is possible to prevent injury to the user and significantly improve convenience in use.

A support member on which food or a container is seated is disposed inside the drawer door, and lifting assemblies are provided at both sides of the drawer door for lifting and lowering the support member, so that both ends of the support member are supported. can be configured to do so. Accordingly, it is possible to prevent the support member from being inclined or eccentric, and thus there is an advantage in that it is possible to ensure a stable lifting motion and reliability of the operation.

In addition, since the elevating assembly for power transmission is located in the area where the flanges of both wall surfaces of the storage space are disposed, an additional space for disposing the elevating assembly is not required and the loss of the storage space can be minimized.

In addition, the support member constitutes a part of the space inside the drawer unit, and is provided in the front space of the drawer unit to support the support in the drawn-out state so that the entire drawer unit is not drawn out and only the front space is located outside. It becomes possible to raise/lower a member. Accordingly, instability due to excessive withdrawal of the drawer unit can be eliminated, and an additional configuration for supporting a load is unnecessary, and cold air is prevented from being lost due to the entire drawer being drawn out.

In addition, the drawer door may be composed of a door unit forming a front surface of the door and a drawer unit forming a storage space, and the door unit and the drawer unit are separably coupled to each other. The support member may include a door-side device provided on the door unit and a drawer-side device provided on the drawer unit. connected to enable power transmission. Accordingly, assembling properties and service performance of the drawer door can be improved.

In addition, electric devices that require power supply, including a lifting motor, are disposed in the door-side device, and the drawer-side device is disposed only on the side of the mechanism to which power is transmitted, thereby ensuring user safety. In addition, cleaning of the drawer can be improved by separating the drawer and disposing the electric device as the door.

And, the drawer-side device disposed in the drawer is connected to the center of both ends of the support member lifted from the inside of the drawer. Accordingly, when the food and the container accommodated inside the drawer unit are raised and lowered, the support member can be stably raised and lowered without being biased or inclined to one side.

In addition, the elevating device constituting the drawer-side device can transmit power as well as prevent flow in the front, back, and left and right directions, so that the support member can be raised and lowered more stably.

In addition, a plurality of plates may be provided on the inner and outer surfaces of the drawer door to shield the components mounted on the drawer door and at the same time to allow the inner and outer surfaces of the drawer door to have a metallic texture, the plurality of plates The appearance may be improved by shielding at least a portion of the draw-in/out rail of the drawer door or the elevating assembly.

In addition, the elevating assembly mounted on the inside of the drawer may further include an assembly cover forming an exterior, wherein the assembly cover is formed of a metal material and bent multiple times to remove the inside of the elevating slot formed on the elevating assembly. It is possible to improve the appearance of the storage space inside the drawer door by forming the same texture to the inside of the elevating assembly and the elevating slot when viewed from the outside.

In addition, the lifting slots are formed in pairs on both left and right sides, respectively, to minimize the width, and it is possible to prevent a safety problem from being caught by the user's body or food.

1 is a front view of a refrigerator according to an embodiment of the present invention.
2 is a perspective view of a drawer door according to an embodiment of the present invention.
3 is a perspective view in which the container of the drawer door is separated.
4 is an exploded perspective view of the drawer door and the door part separated from each other as viewed from the front.
FIG. 5 is an exploded perspective view of the drawer door and the door part separated from each other as viewed from the rear.
6 is an exploded perspective view of the door part;
7 is an exploded perspective view of the drawer unit.
8 is a cut-away perspective view showing the structure of the drawer unit.
9 is a perspective view illustrating a configuration of an elevating assembly embedded in the drawer door.
10 is an exploded perspective view illustrating a coupling structure of a drawer-side device in the elevating assembly.
11 is an exploded perspective view of the structure of a lifting device, which is a main component of the drawer-side device, viewed from one direction.
12 is an exploded perspective view of the structure of the elevating device viewed from another direction.
13 is a cut-away perspective view showing a cross-section of the elevating device.
14 is a partial perspective view illustrating a power transmission structure of the drawer-side device.
15 is a perspective view illustrating a mounting structure of a drawer shaft of the drawer-side device.
16 is a perspective view of the drawer door in a closed state;
17 is a perspective view of the drawer door in a fully opened state;
18 is a cross-sectional view of the drawer door in the same state as FIG. 17 .
19 is a perspective view of a state in which the support member of the drawer door is fully lifted.
20 is a cross-sectional view of the drawer door in the same state as in FIG. 19 .
21 is a perspective view showing the structure of the elevating assembly according to another embodiment of the present invention.
22 is a perspective view of a refrigerator according to another embodiment of the present invention.
23 is a perspective view of a refrigerator according to another embodiment of the present invention.
24 is a perspective view of a refrigerator according to another embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with drawings. However, the present invention cannot be said to be limited to the embodiments in which the spirit of the present invention is presented, and other inventions that are degenerative by addition, change, deletion, etc. of other components or other embodiments included within the scope of the present invention are easy can suggest

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

As shown in the drawing, the refrigerator 1 may have an external shape formed by a cabinet 10 forming a storage space and a door 2 shielding the open front of the cabinet 10 .

The storage space inside the cabinet 10 may be divided into a plurality of spaces. For example, an upper space of the cabinet 10 may be partitioned into a refrigerating chamber, and a lower space may be partitioned into a freezing chamber. Of course, the upper space and the lower space may be divided into independent spaces maintained at different temperatures, not the refrigerating chamber or the freezing chamber, and may be referred to as an upper storage space and a lower storage space.

The door 2 may be composed of a rotary door 20 that opens and closes the upper space by rotation, and a drawer door 30 that opens and closes the lower space by drawer-type pull-out. The lower space may be partitioned up and down again, and the drawer door 30 may include an upper drawer door 30 and a lower drawer door 30 . In addition, the rotating door 20 and the drawer door 30 are formed of a metal material to form an exterior exposed to the front.

Although the present invention has been described with reference to a refrigerator in which the rotating door 20 and the drawer door 30 are disposed together, the present invention is not limited thereto. will be applicable.

A display 21 may be provided on one side of the front side of the revolving door 20 , and the display 21 may have a structure of a liquid crystal display or an 88-segment structure. In addition, when the exterior of the door 2 is formed of a metal material, the display 21 may be formed such that a plurality of fine holes are perforated to display information by light transmitted therethrough.

In addition, a manipulation unit 22 capable of operating automatic rotation or withdrawal of the upper door 2 or the lower door 2 may be provided on one side of the rotating door 20 . The manipulation unit 22 may be provided integrally with the display 21 , and may be formed by a touch method or a button method. The operation unit 22 may operate and input the overall operation of the refrigerator 1 , and may operate the drawer door 30 , the drawer door 30 , or the lifting and lowering of the support member 35 inside the drawer door 30 . have.

The drawer door 30 may also be provided with a manipulation unit 301 . The manipulation unit 301 may be provided on one side of the drawer door 30 located at the bottom of the drawer doors 30 , and the manipulation unit 301 may be configured by a touch or button method. Of course, the manipulation unit 301 may be configured as a sensor for detecting proximity or movement of the user, or may be configured to input a manipulation by the user's motion or voice.

In addition, as shown in the drawing, a manipulation device 302 is provided at the lower end of the lower drawer door 30 to irradiate an image on the floor surface to output a virtual switch, and the user inputs manipulation in such a way that the user approaches the corresponding area. It may be configured to do so.

Meanwhile, the lower drawer door 30 may be automatically drawn in and out according to the operation of the manipulation unit 301 . In addition, the food or container 36 provided inside the lower drawer door 30 may be raised and lowered in a state in which the drawer door 30 is drawn out according to the operation of the manipulation unit 301 .

That is, the lower drawer door 30 may be operated by at least one of the devices 22 , 301 , and 302 for automatic withdrawal and/or automatic lifting and lowering of the lower drawer door 30 . Of course, if necessary, only one of the devices 22, 301, and 302 for the plurality of manipulations may be provided.

Hereinafter, the lower drawer door 30 of the present invention will be described in more detail. Unless otherwise specified, the lower drawer door 30 will be referred to as a drawer door.

2 is a perspective view of a drawer door according to an embodiment of the present invention. And, Figure 3 is a perspective view in which the container of the drawer door is separated.

As shown in the drawing, the drawer door 30 includes a door part 31 for opening and closing the storage space, and a drawer part coupled to the rear surface of the door part 31 to be drawn in and out together with the door part 31 . (32) may be included.

The door part 31 may be exposed to the outside of the cabinet 10 to form the exterior of the refrigerator 1 , and the drawer part 32 may be disposed inside the cabinet 10 to form a storage space. can do. In addition, the door part 31 and the drawer part 32 may be coupled to each other and configured to be drawn in and out together in the front and rear directions.

The drawer part 32 is positioned on the rear surface of the regular door part 31 , and may form a space in which food or a container 36 for storage is accommodated. The inside of the drawer part 32 may be formed in a box shape with an open top to form a storage space therein.

Of course, the drawer part 32 may be configured to include a lower surface part connecting the left and right both side surfaces for mounting the lifting device 51 and the left and right both surface parts to form a floor, and a front part and a rear part may be optionally included. can

An exterior of the drawer part 32 may be formed by a plurality of plates 391 , 392 , and 395 . The plurality of plates 391 , 392 , and 395 may be made of a metal material such as stainless steel, and are provided on the outside as well as the inside of the drawer unit 32 so that the entire drawer unit 32 has a texture such as stainless or stainless steel. can be formed.

In a state in which the drawer door 30 is retracted, a machine room 3 including a compressor and a condenser constituting a refrigeration cycle may be disposed behind the drawer door 30 . Accordingly, the second half of the drawer unit 32 may be formed in a shape in which the upper end protrudes more than the lower end, and the rear surface of the drawer unit 32 may form an inclined surface 321 .

In addition, on both sides of the drawer unit 32 , pull-out rails 33 for guiding the drawer door 30 may be provided. The drawer door 30 can be mounted to the cabinet 10 to be pull-out by the pull-out rail 33 . The pull-out rail 33 may be shielded by the outer side plate 391 so as not to be exposed to the outside. The pull-out rail 33 may be configured in a multi-stage extendable rail structure.

In addition, the pull-out rail 33 may be provided at the lower end of both sides of the drawer unit 32 , and thus it may be understood that the draw-out rail 33 is disposed on the lower surface of the drawer unit 32 . . Accordingly, the pull-out rail 33 is provided on the lower surface of the drawer part 32 and may be referred to as an under-rail. The pull-out rail is provided on the lower or lower surface of the drawer to prevent interference with the elevating device 51 and ensure independent operation of the pull-out rail 33 and the elevating device 51 .

A pull-out rack 34 may be provided on a lower surface of the drawer unit 32 . The drawer and drawer racks 34 may be disposed on both sides, and are connected to the drive of the drawer and drawer motor 14 mounted on the cabinet 10 to enable automatic drawer door 30 to be drawn in and out. That is, when the manipulation units 22 and 301 are inputted, the pull-out motor 14 is driven so that the drawer door 30 can be pulled-out according to the movement of the pull-out rack 34 . And, at this time, the drawer door 30 can be stably drawn in and out by the pull-out rail 33 .

Of course, the drawer unit 32 may not be provided with a drawer 34 , and a user holds one side of the door unit 31 and pushes or pulls the drawer door 30 directly. It will also be possible

Meanwhile, the inside of the drawer part 32 may be divided into a front space S1 and a rear space S2 . The front space S1 may include a support member 35 that is lifted up and down, and a container 36 that is seated on the support member 35 and moves up and down together with the support member 35 . Although the container 36 is shown in the form of a basket with an open top, it may have a closed box structure such as a kimchi container, and a plurality of containers may be stacked or arranged side by side.

In addition, when the drawer door 30 is drawn out, the entire drawer 32 cannot be drawn out of the storage space due to the limitation of the withdrawal distance of the drawer door 30, and at least the front space S1. This is drawn out of the storage space, and all or part of the rear space S2 is located inside the storage space inside the cabinet 10 , that is, in the lower storage space.

The pull-out distance of the drawer door 30 may be limited by the pull-out rack 34 or the pull-out rail 33 . In addition, the withdrawal distance of the present embodiment is shorter than the withdrawal distance of the general drawer door 30 from which the drawer unit 32 is completely drawn out. Compared to that, the applied moment can be reduced, and it is possible to prevent deformation or damage of the pull-out rail 33 or the pull-out rack 34 due to the load of the drawer door 30 .

The support member 35 is accommodated in the front space (S1). The support member 35 may be configured to move up and down together with the food or container 36 seated on the support member 35 inside the drawer part 32 . And, the components 50 for lifting and lowering the support member 35 may be located on both left and right sides of the drawer part 32, and are coupled at the midpoint of both sides of the support member 35 to the support member ( 35) can be fixed so as to be raised and lowered without being biased to one side.

A separate drawer cover 37 may be provided in the rear space S2. The front space S1 and the rear space S2 may be partitioned by the drawer cover 37 . In a state in which the drawer cover 37 is mounted, the front and upper surfaces of the rear space S2 may be shielded and covered.

Accordingly, it is possible to prevent the food or container 36 stored in the support member 35 elevating in the front space S1 from falling into the rear space. In particular, it is possible to prevent the food or the container 36 seated on the support member 35 from being separated from the front space S1 in the elevating operation process.

When the drawer cover 37 is removed, it becomes accessible to the rear space S2, and food can be stored in the rear space S2. In order to utilize the rear space S2, a structure for a separate storage may be provided in the rear space S2.

4 is an exploded perspective view of the drawer door and the door part separated from each other as viewed from the front. And, FIG. 5 is an exploded perspective view of the drawer door and the door part separated from each other as viewed from the rear.

As shown, the door part 31 and the drawer part 32 constituting the drawer door 30 may have a structure that can be separated and coupled to each other. Assembly workability and serviceability can be improved through the separable structure of the door part 31 and the drawer part 32 .

The rear surface of the door part 31 and the front surface of the drawer part 32 may be coupled to each other, and when the door part 31 and the drawer part 32 are coupled, the power for lifting and lowering the support member 35 . It can be configured to provide A lifting assembly (40 in FIG. 9) for lifting and lowering the support member 35 may be disposed in the door part 31 and the drawer part 32, respectively, and the door part 31 and the drawer part 32 ) may have a structure selectively connected according to the bonding and separation of the.

To this end, the lifting assembly 40 includes a door-side device (41 in FIG. 9) provided in the door unit 31 and a drawer-side device (50 in FIG. 9) provided in the drawer unit 32. can be configured. The door-side device 41 is provided inside the door part 31 , and a door connecting member 416 , which is a component of the door-side device 41 , may be exposed on the rear surface of the door part 31 . have. In addition, the drawer-side device 50 is provided in the drawer unit 32 so that the drawer connecting member 522 is exposed at a position corresponding to the door connecting member 416 on the front of the drawer unit 32 . can be provided. The door connecting member 416 and the drawer connecting member 522 may be formed in a shape corresponding to each other to be coupled and separated from each other, and may have a structure capable of transmitting power in the coupled state. When the door part 31 is fixed to the drawer part 32 , they are coupled to each other, and when the door part 31 is separated from the drawer part 32 , they may be separated together.

That is, the door connecting member 416 and the drawer connecting member 522 may have protrusions and grooves respectively formed therein, and the protrusions and grooves may be formed in a polygonal shape or a shape capable of transmitting power so as to be interlocked with each other. can Of course, the door connecting member 416 and the drawer connecting member 522 may have a different coupling structure capable of being detached while power may be transmitted.

A door cover 315 may be provided on the rear surface of the door part 31 . The door cover 315 may be assembled and mounted to shield the door-side device 41 after the door-side device 41 is mounted from the rear of the door unit 31 . The door cover 315 may be configured to shield the entire rear surface of the door part 31 , or may be configured to shield only an area corresponding to the door-side device 41 .

In addition, a pair of door frames 316 may be provided on the rear surface of the door 2 , and the door 31 and the drawer 32 are coupled to each other by the door frame 316 . be able to keep

Hereinafter, the door part 31 and the drawer part 32 constituting the drawer door 30 will be described in more detail with reference to the drawings.

6 is an exploded perspective view of the door part;

As shown in the drawing, the door part 31 includes an outer case 311 forming a front surface and a part of a circumferential surface, a door liner 314 forming a rear surface, and an upper decoration 312 forming an upper surface and a lower surface. ) and the lower decoration 313 may form an appearance. And, the inside of the door part 31 may be filled with a heat insulating material.

The outer case 311 may be formed by bending a plate-shaped metal material, and an inclined portion 311a may be formed at the lower end of the front surface. A manipulation device hole 311b may be formed at one side of the inclined portion 311a, and a manipulation device 302 for outputting a virtual switch and sensing a user manipulation may be located in the manipulation device hole 311b. . The manipulation device 302 may include a projector light capable of outputting an image, a proximity sensor, and the like so as to be used as a virtual switch.

An operation unit bracket 313a may be provided inside the lower decor 313 for mounting the operation device 302 and for arranging electric wires connected to the electric components inside the door unit 31 .

The door liner 314 may be injection-formed from a plastic material to form a rear surface of the door unit 31 . In addition, the door liner 314 may have a recessed portion 314a that is recessed so that the door-side device 41 can be mounted thereon. In addition, the door cover 315 may be mounted on the door liner 314 to shield the door-side device 41 and the recessed portion 314a mounted on the door unit 31 .

A cold air inlet 315b may be formed at an upper portion of the door cover 315 , and the cold air inlet 315b is higher than the upper end of the drawer 32 when the door 31 and the drawer 32 are combined. At least a portion may be exposed further upwards. Accordingly, some of the cold air supplied to the drawer part 32 may be introduced into the door cover 315 through the cold air inlet 315b. In addition, a cold air outlet 315c may be formed at a lower portion of the door cover 315 . The cold air outlet 315c is opened downward between the door part 31 and the drawer part 32 , and thus the cold air introduced into the door cover 315 flows to the lower side of the drawer part 32 . be able to do so

That is, the door cover 315 forms a flow and circulation path of cold air in front of the drawer 32 inside, and the drawer 32 is drawn into the storage space of the cabinet 10 . , the cold air is circulated around the drawer part 32 so that the cooling of the drawer part 32 can be made more efficiently.

In addition, a connection member hole 315a may be formed on the rear surface of the door part 31 . The connection member hole 315a may be formed in the door cover 315 , and the door connection member 416 may be exposed to the rear surface of the door part 31 through the connection member hole 315a. . On the other hand, the door connecting member 416 may be moved in the forward and backward directions according to the user's manipulation, and when the door part 31 and the drawer part 32 are separated by the user's manipulation, the door connection member 416 is connected. The member 416 and the drawer connecting member 522 may be separated from each other.

The door part 31 may be provided with the door-side device 41 . The door-side device 41 is a component disposed on the door part 31 of the elevating assembly 40 , and is rotated by a motor assembly 412 configured to provide power and the motor assembly 412 . a door-side shaft 413 that is used as a door-side shaft 413, a door-side first gear 414 having a bevel gear shape provided at both ends of the door-side shaft 413, the door-side first gear 414, and the door connecting member 416 It may include a door-side second gear 415 in the form of a bevel gear coupled to. In addition, the door-side device 41 may further include the door connecting member 416 . Each configuration of the door-side device 41 will be described in more detail below.

Meanwhile, the door-side device 41 may be configured such that a pair of motor assemblies 412 are arranged side by side in parallel, and a pair of door-side shafts 413 are coupled to each motor assembly.

When sufficient torque can be provided, the motor assembly 412 is rotated by one motor capable of forward and reverse rotation and the mother part as long as it can provide sufficient power for lifting and lowering the support member 35, as shown in FIG. A motor assembly including a combination of a plurality of gears for transmitting rotational power may be configured alone.

In addition, the motor assembly 412 may be disposed in a horizontal shape with the front surface of the door part 31 to minimize the depth of the depression inside the door part 31 , thereby ensuring thermal insulation performance.

Meanwhile, a pair of door frames 316 may be provided on the left and right sides of the rear surface of the door unit 31 . The door frame 316 may be configured to connect the door unit 31 and the drawer unit 32 , and to maintain the drawer unit 32 coupled to the door unit 31 .

In detail, the door frame 316 may include a door frame unit 316a fixed to the rear surface of the door unit 31 and a drawer frame unit 316b fixed to the lower surface of the drawer unit 32, The door frame part 316a and the drawer frame part 316b may be formed to vertically cross each other. In addition, a frame reinforcement part 316c for preventing deformation of the door frame 316 by connecting the door frame part 316a and the drawer frame part 316b may be further formed.

The door frame part 316a may be mounted on the rear surface of the door part 31 , and is provided inside the door part 31 so that the drawer frame part 316b passes through the rear surface of the door part 31 . It may be configured to be extended. In addition, the drawer frame part 316b may extend rearward from the lower end of the door frame part 316a, and may support the drawer part 32 from below.

In addition, a gasket 317 for sealing the storage space in contact with the front end of the cabinet 10 may be provided around the rear surface of the door liner 314 .

7 is an exploded perspective view of the drawer unit. And, Figure 8 is a cut-away perspective view showing the structure of the drawer unit.

As shown in the drawing, the drawer unit 32 includes a drawer body 38 forming the overall shape of the drawer unit 32 , and is provided in the drawer body 38 and constitutes the lifting assembly 40 . It may include a drawer side device 50 and a plurality of plates 391 , 392 , and 395 forming the inner exterior of the drawer unit 32 .

Looking at this in more detail, the drawer body 38 may be injection-molded from a plastic material, and forms the overall shape of the drawer part 32 . The drawer body 38 has a basket shape with an open upper surface, and forms a food storage space therein. An inclined surface 321 may be formed on the rear surface of the drawer body 38 , so that interference with the machine room 3 may not occur.

The door frame 316 may be mounted on both sides of the drawer unit 32 . The door frame 316 may be coupled to both sides of the lower surface or the lower left and right side surfaces of the drawer unit 32 , and the drawer unit 32 and the door unit 31 may be integrally coupled to each other so that they can be drawn in and out together. .

Draw-out racks 34 may be provided on left and right sides of the lower surface of the drawer unit 32 . The drawer unit 32 may be drawn in and out in the front-rear direction by the pull-out rack 34 . In detail, at least a portion of the rear space S2 of the drawer part 32 is positioned inside the lower storage space in a state in which it is mounted on the cabinet 10 .

In addition, the pull-out rack 34 may be coupled to the pinion gear 141 provided on the bottom surface of the storage space. Therefore, when the pull-out motor (14 in FIG. 18) is driven, the pinion gear (141 in FIG. 18) rotates to move the pull-out rack 34, and the drawer door 30 can be pulled out have.

Of course, the drawer door 30 is not automatically drawn in and out, and a user may push or pull the drawer door 30 to bring it in and out. (33) may be guided only by withdrawals and withdrawals.

A plurality of reinforcing ribs 381 may be formed to extend in the horizontal and vertical directions on both left and right sides of the drawer body 38 . The reinforcing ribs 381 prevent the drawer body 38 from being deformed by a load applied to the left and right sides of the drawer body.

In particular, the main component for lifting and lowering the support member 35 , that is, the lifting device 51 may be provided on both sides of the drawer body 38 , and thus the support member 35 and the support member 35 . The load may be concentrated on both sides of the drawer body 38 when the food or container seated in the container is lifted. The reinforcing rib 381 may maintain the shape of the drawer body 38 and the drawer part 32 even under such concentrated load.

On the other hand, a rail mounting portion 382 on which a pull-out rail 33 for guiding the drawer body 38 is mounted may be formed in the lower portion of both side surfaces of the drawer body 38 . The rail mounting part 382 may extend from the front end to the rear end, and a space may be formed therein to accommodate the pull-out rail 33 . The pull-out rail 33 is a rail extending in multiple stages, and one end may be fixed to the storage space inside the cabinet 10 , and the other end may be fixed to the rail mounting unit 382 to provide a space for the drawer door 30 . It is possible to make withdrawals and withdrawals more stable. The rail mounting part 382 may be located in the inner region of the drawer flange 380 to be described below, and may be covered by the outer side plate 391 .

A mounting portion 383 on which the elevating device 51, which is a main component of the drawer-side device 50, is mounted, may be recessed inside both side surfaces of the drawer body 38 . The mounting portion 383 may be depressed outwardly from the inner surface of the drawer body 38 forming the drawer space.

The mounting part 383 may extend in a vertical direction, and may extend vertically from an upper end of the drawer body 38 toward a bottom surface of the drawer body 38 . In this case, the lower end of the mounting part 383 may be located higher than the lower end of both sides of the drawer body 38 . The lower end of the mounting part 383 may extend to the rail mounting part 382 , and thus may be formed so as not to interfere with the components for mounting the draw-out rail 33 and the draw-out rail 33 .

And, the inner surface of the mounting part 38 is formed in a shape corresponding to the shape of the outer surface of the lifting device 51, so that it is possible to maintain a stable mounting state of the lifting device 51 even in a state in which a load is applied. can

In detail, the mounting part 383 may be formed such that the first mounting part 383c recessed in the central part and the second mounting part 383d are recessed at both sides of the first mounting part 383c. At this time, the first mounting part 383c is recessed more than the second mounting part 383d so that the first mounting part 383c and the second mounting part 383d are formed to have a step difference, and the elevating device is formed in a corresponding shape. It becomes possible to be constrained without rotation in the state in which (51) is mounted.

In addition, the lifting device 51 forms the same plane as the inner surface of the drawer body 38 in a state in which it is mounted on the mounting part 383 to prevent interference when the support member 35 is lifted and to have a sense of unity. can make it

A lower surface of the mounting part 383 is formed to support the lower end of the lifting device 51 . And, the upper surface of the mounting part 383 is opened so that the lifting device 51 can be inserted through the opened upper side, and slidingly inserted from the upper side, so that both ends of the lifting device 51 are opened in the mounting part 383 . It may have a structure that can be constrained.

In addition, a mounting bracket 53 may be provided on the opened upper surface of the mounting unit 383 . The mounting bracket 53 may be formed of a metal material to constrain the upper end of the lifting device 51 .

In detail, the mounting bracket 53 is mounted on the upper ends of both ends of the drawer body 38 , and may be formed to pass through an open upper surface of the mounting unit 383 . At this time, on one side of the mounting bracket 53 corresponding to the opened upper surface of the mounting part 383, a bracket hole into which a cap protrusion (581a in FIG. 11) protruding from the upper surface of the elevating device 51 is inserted may be formed. have. The mounting bracket 53 extends from the front end to the rear end of both sides of the drawer body 38, and can be firmly fixed to the drawer body 38 by a plurality of fixing members. Accordingly, the elevating device 51 can maintain a state mounted on the drawer body 38 in a more stable and robust state.

The lifting device 51 may be connected to both ends of the support member 35 by a connection bracket 54 . In addition, the lifting device 51 is operated for vertical movement of the support member 35 , and may be configured to guide the smooth vertical movement of the support member 35 .

The shaft mounting part 384 may be opened outwardly from upper ends of both sides of the drawer body 38 , and may be formed to communicate with the mounting part 383 . Accordingly, the drawer-side shaft 52 mounted on the shaft mounting unit 384 is coupled with the elevating device 51 mounted on the mounting unit 383 to transmit power.

The mounting part 383 may have a shape recessed from the inner surface of the drawer body 38 , and the shaft mounting part 384 may have a shape recessed from the outer surface of the drawer body 38 . Accordingly, when the drawer body 38 is molded, the structure of the mold can be simplified so that the drawer body 38 can be easily molded.

Meanwhile, the mounting part 383 and the shaft mounting part 384 may be located inside the area of the drawer flange 380 bent outward from the upper ends of both sides of the drawer body 38 . That is, the mounting part 383 and the shaft mounting part 384 may be positioned below the area bent outwardly of the drawer flange 380 . In addition, the mounting part 383 and the shaft mounting part 384, as well as the lifting device 51 and the drawer side shaft 52 mounted on the mounting part 383 and the shaft mounting part 384, are also more than the drawer flange 380. It does not protrude further inward or outward. That is, both the drawer-side device 50 constituting a part of the lifting assembly 40 and the structure for mounting the drawer-side device 50 are located within the region of the drawer flange 380 . Accordingly, it is possible to prevent loss of the storage space inside the drawer body 38 .

Among the drawer-side devices 50 , the support member 35 and the lifting device 51 are disposed on the inner surface of the drawer body 38 , and the drawer-side shaft 52 is disposed outside the drawer body 38 . can be placed in In addition, the mounting part 383 and the shaft mounting part 384 may communicate with each other, and the drawer-side shaft 52 and the lifting device 51 may be connected to each other while being mounted on the drawer body 38 . have.

In addition, the drawer body 38 may include a plurality of plates 391 , 392 , and 395 which are made of a plate-shaped metal material such as stainless steel and form at least a portion of the interior and exterior of the drawer body 38 .

In detail, outer side plates 391 may be provided on both left and right side surfaces of the outside of the drawer body 38 . The outer side plate 391 is mounted on both left and right sides of the drawer body 38 to form the exterior of both sides, and in particular, the drawer side shaft 52 and the pull-out rail mounted on both sides of the drawer body 38 . (33) and the like can be prevented from being exposed to the outside.

In addition, an upper bent portion 391a may be formed at the upper end of the outer side plate 391 , and the upper bent portion 391a shields the upper end of both sides of the drawer body 38 and the mounting bracket 53 . can do.

Inner side plates 392 may be provided on both left and right sides of the inside of the drawer body 38 . The inner side plate 392 is mounted on both left and right sides of the drawer body 38, and may form left and right side surfaces of the inner side.

The extended end of the upper bent portion 391a may be in contact with the upper end of the inner side plate 391 , and thus, the drawer body 38 is formed by the inner side plate 392 and the outer side plate 391 . Both the left and right both sides of the inner and outer sides and the upper surface can be shielded.

In addition, a side opening 394 having a size corresponding to that of the mounting part 383 may be formed in the inner side plate 392 . Accordingly, in a state in which the inner side plate 392 is mounted, the lifting device 51 mounted on the mounting part 383 may be exposed to the inside of the drawer body 38 , and the connection bracket 54 may be mounted. to be coupled to the support member 35 .

An inner plate 395 may be provided on the inner front surface, lower surface, and rear surface of the drawer body 38 . The inner plate 395 may include a front portion 395a, a lower surface portion 395b, and a rear surface portion 395c having sizes and shapes corresponding to the inner front surface, lower surface, and rear surface of the drawer body 38 . The inner plate may be formed by bending a plate-shaped stainless material so as to form the inner surface of the remaining portions except for the left and right sides of the drawer body 38 . In addition, left and right both ends of the inner plate 395 may be formed to contact the inner side plate 392 . Of course, the front portion 395a , the lower surface portion 395b , and the rear portion 395c constituting the inner plate 395 may be configured separately to be coupled to or in contact with each other.

The entire inner surface of the drawer body 38 may be formed by the inner side plate 392 and the inner plate 395 , and the inner surface of the drawer body 38 may provide a metallic texture. Therefore, the inner surface of the drawer part 32 can be in a state where heat transfer is easier by the inner side plate 392 and the inner plate 395, and the entire drawer part 32 is evenly distributed by the surrounding cold air. allow it to cool. Accordingly, it is possible not only to allow the food stored in the drawer 32 to be stored coldly in a more even area as a whole, but also to provide the user with visually excellent cooling performance and storage performance.

Further, upper bent portions 395d and 395e bent outward, respectively, may be further formed on the upper ends of the front portion 395a and the rear portion 395c of the inner plate 395, and the front end of the drawer body 38 and The upper surface of the rear end can be shielded. In addition, the rear portion 395c may be formed to have a shape corresponding to the inclined surface 321 of the rear surface of the drawer body 38 to be in close contact with the inclined surface 321 of the drawer body 38 .

In addition, a lower surface opening 395f may be further formed at the rear end of the lower surface portion 395b adjacent to the lower end of the rear surface portion 395c. The lower surface opening 395f may be formed to open at a position corresponding to the cover support 388 protruding from the lower surface of the drawer body. Accordingly, the cover support part 388 may be exposed through the lower surface opening 395f, and the lower end of the drawer cover 37 is coupled to the cover support part 388 so that the drawer cover 37 is mounted. make it possible

The drawer cover 37 is bent at an upper end of a cover front portion 371 dividing the inside of the drawer body 38 into a front space S1 and a rear space S2, and the cover front portion 371, , it may include a cover upper surface portion 372 for shielding the upper surface of the rear space (S2).

That is, when the drawer cover 37 is mounted, only the front space S1 in which the support member 35 is disposed may be exposed inside the drawer body 38 , and the rear space S2 is the drawer body 38 . It may be shielded by a cover 37 .

A lower end of the cover front part 371 may be coupled to the cover support part 388 . In addition, a plurality of cover restraints 373 may be formed along left and right both ends of the drawer cover 37 . The cover restraining part 373 may be formed at a position corresponding to a plurality of cover restraining protrusions 385 protruding inward from the inner surface of the drawer body 38 . The cover restraining protrusion 385 may protrude through the protrusion hole 392b formed in the inner side plate 392 .

In addition, the cover restraining part 373 may be press-fitted into the cover restraining protrusion 385 , and when the drawer cover 37 is mounted, the cover restraining protrusion 385 and the cover restraining part 373 are coupled to each other. Thus, the drawer cover 37 may be fixed.

Meanwhile, a separate rear accommodating member 39 may be further provided inside the drawer cover 37 . The rear accommodating member 39 may be formed to correspond to the shape of the rear space S2 and may be formed to have an upper surface open.

In detail, the rear accommodating member 39 may be formed in a shape that becomes narrower from top to bottom, a front surface is vertically formed to be in contact with the drawer cover 37 , and a rear surface is an inclined surface of the drawer body 38 . It may be formed to be inclined so as to be in contact with the 321 . And, the left and right side surfaces of the rear storage member 39 are in contact with the left and right side surfaces of the drawer body 38, and the lower ends of the left and right side surfaces of the rear storage member 39 are shaft-coupled to the drawer body 38 so as to be rotatable. can be configured. Therefore, in the state in which the drawer cover 37 is removed, the rear space S2 can be used for food storage, and even when the drawer door 30 is not fully drawn out to the front, the rear storage member 39 Easy access to the rear housing member 39 is possible by rotation or tilting of the .

Meanwhile, a support member 35 may be provided inside the drawer body 38 . The support member 35 may be included as one configuration of the elevating assembly 40 . The support member 35 may have a size that can be accommodated inside the front space S1 of the bottom surface of the drawer body 38 .

In addition, the support member 35 may be formed in a rectangular plate shape, and a lifting plate 351 that substantially supports food or a container, and a lifting plate 351 that supports the lifting plate 351 from below and reinforces strength. frame 352 . The support member 35 is a portion on which the food or container 36 is substantially seated and supported, and may be referred to as a seating member or a tray. And, if necessary, the support member 35 may be composed of either the lifting plate 351 or the lifting frame 352 .

The lifting plate 351 may be formed in a rectangular plate shape, and a peripheral portion 351a protruding upward along the circumference may be formed. The circumferential portion 351a has an open lower surface to accommodate a portion of the elevating frame 352 therein. In addition, the peripheral portion 351a may be configured to contact the circumference of the lower surface of the container 36 to prevent the container 36 from flowing.

In addition, a connection bracket mounting portion 351b to which the connection bracket 54 can be mounted may be formed on both left and right side surfaces of the peripheral portion 351a. In addition, the connection bracket mounting portion 351b may be cut to expose a side surface of the lifting frame 352 . Connection brackets 54 may be mounted on both sides of the elevating frame 352 through the connection bracket mounting part 351b.

One side of the connection bracket 54 may be fixed to the elevating frame 352 , and the other end may be configured to be coupled to the elevating device 51 . Accordingly, when the lifting device 51 is operated, the lifting frame 352 connected by the connecting bracket 54 , that is, the support member 35 may move up and down together with the lifting connecting bracket 54 .

Meanwhile, the drawer-side device 50 extending in an up-down direction perpendicular to the pull-out direction of the drawer unit 32 may be mounted on the drawer body 38 . The drawer-side device (50) is disposed on both sides of the support member (35) and the support member (35), and transmits power for vertical movement of the support member (35) and the support member (35). up and down movement can be guided.

The drawer-side device 50 includes the elevating device 51 mounted inside the mounting unit 383 , and a mounting unit for restraining the connecting bracket 54 , the drawer-side shaft 52 and the elevating device 51 . It may be configured to further include at least one of the brackets (53).

Hereinafter, the structure of the elevating assembly 40 will be described in more detail with reference to the drawings.

9 is a perspective view illustrating a configuration of an elevating assembly embedded in the drawer door.

As shown in the drawing, the elevating assembly 40 may be composed of a door-side device 41 disposed on the door part 31 and a drawer-side device 50 disposed on the drawer part 32 as a whole. have. And, the door-side device 41 and the drawer-side device 50 are coupled to each other by the coupling of the door part 31 and the drawer part 32, and power transmission is possible.

As described above, the door-side device 41 includes a motor assembly 412 including a lifting motor 411 , a door-side shaft 413 coupled with the motor assembly 412 to rotate, and the door The door-side first gear 414 provided at both ends of the side shaft 413, the door-side second gear 415 meshing with the door-side first gear 414, and the door-side second gear 415 It may include a coupled door connecting member 416 .

In FIG. 9 , a single motor assembly 412 is provided as an example, but when it is determined that a larger torque is required for lifting and lowering the support member 35 , as shown in FIG. 6 , a pair of motor assemblies 412 . ) may be configured to be provided. In FIG. 9, the motor assembly 412 is disposed perpendicular to the front surface of the door part 31, but as shown in FIG. 31) can also minimize the loss of thermal insulation space.

Even if one or two motor assemblies 412 are provided, the door-side first gear 414 and the door-side second gear 415 disposed on both sides should be able to rotate simultaneously and by the same amount. That is, since the pair of lifting devices 51 is driven by the rotational force transmitted by the pair of door-side second gears 415, the door-side first gear 414 and the door-side second gear 415 simultaneously And it is rotated by the same amount to prevent the inclination of the support member (35). To this end, the door-side shaft 413 may have a structure in which one shaft or a plurality of shafts passing through the motor assembly 412 can be rotated together.

The drawer-side device 50 is disposed on both sides of the support member 35 provided inside the drawer body 38 and the support member 35 to elevate the support member 35 . The lifting device 51 , the connecting bracket 54 , and a drawer-side shaft 52 provided outside the drawer body 38 to transmit the rotational force of the door-side device 41 to the elevating device 51 . ) may be included.

When the motor assembly 412 is driven, the rotational force of the door-side shaft 413 may be transmitted to the drawer-side device 50 by the door connecting member 416 and the drawer connecting member 522 coupled to each other. have. The drawer-side shaft 52 rotates due to the rotation of the drawer connecting member 522 , and the lifting shaft 57 inside the lifting device 51 coupled to the drawer-side shaft 52 rotates. The lifting block 567 coupled to the lifting shaft 57 and the block holder 56 coupled to the lifting block 567 may be vertically moved by the rotation of the lifting shaft 57 . The elevating block 567 and the block holder 56 may be molded into a single configuration, and the elevating block 567 and the block holder 56 may be referred to as an elevating holder together.

The block holder 56 is coupled to the connection bracket 54 to elevate the connection bracket 54 , and the connection brackets 54 on the left and right sides support the connection bracket 54 while being coupled to the lifting frame 352 . The member 35 can be raised and lowered.

That is, the rotational force of the motor assembly 412 is transmitted to the drawer-side shaft 52 through the door-side shaft 413 and rotates the lifting shaft 57 , and the block holder 56 and the connection The bracket 54 guides the support member 35 to move in the vertical direction.

Hereinafter, the detailed structure of each component of the drawer-side device 50 will be described in more detail with reference to the drawings.

10 is an exploded perspective view illustrating a coupling structure of a drawer-side device in the elevating assembly.

As shown in the drawings, the drawer-side device 50 includes the lifting device 51 for vertical movement of the support member 35 , the lifting device 51 and the door-side device 41 . It may include the drawer-side shaft 52 that is connected to transmit power, and a connection bracket 54 that connects the lifting device 51 and the support member 35 to each other.

The arrangement position of the lifting device 51 is a position corresponding to the center of the front-back direction of the front space S1, and is located at a position corresponding to the center portion of both sides of the support member 35. Accordingly, the support member 35 can be stably raised and lowered without being inclined.

The lifting device 51 is mounted on the mounting part 383 , and includes a housing 55 forming a space therein, an upper cap 581 and a lower cap 585 for shielding the upper and lower ends of the housing 55 . ), a lifting block 567 and a block holder 56 moving along the lifting shaft 57 inside the housing 55, and a rail cover 59 for shielding the opened surface of the housing 55. can be configured.

The housing 55 and the rail cover 59 form a pair of guide slits 511 extending in the vertical direction, and the lifting block and the block holder 56 are lifted along the pair of guide slits 511. can

In addition, the outer surface of the housing 55 may include a central portion 553 protruding outward and a side portion 554 extending laterally from the central portion 553 stepwise. The central part 553 and the side part 554 are formed in a shape corresponding to the first mounting part 383 and the second mounting part 383 of the mounting part 383 so that the housing 55 is mounted inside the mounting part 383 . to be firmly attached to the

In addition, a shaft insertion hole 552 in which an end of the drawer-side shaft 52 extending toward the elevating device 51 is accommodated may be formed at an upper portion of the housing 55 . The shaft insertion hole 552 may be formed to open in a shape corresponding to the end of the drawer shaft 521 and the drawer-side gear 523 to be inserted, and the lifting shaft coupled to the upper end of the lifting shaft 57 . It may be opened so that up to a part of (57) can be exposed. Therefore, through the shaft insertion hole 552 , it is possible to check the attachment and detachment of the drawer side mounting part 383 as well as the coupling state between the drawer side gear 523 and the shaft gear 572 , and the drawer side gear 552 . The housing 55 is prevented from interfering with the operation of the 523 and the shaft gear 572 .

The drawer-side shaft 52 includes a drawer shaft 521 having a predetermined length, a drawer connecting member 522 provided at the front end of the drawer shaft 521 , and a drawer provided at the rear end of the drawer shaft 521 . It may be configured as a side gear 523 . The drawer connecting member 522 is coupled to the door connecting member 416 when the door 31 and the drawer 32 are coupled, and the drawer-side gear 523 is coupled to the shaft gear 572 and can be combined. In addition, the drawer-side shaft 52 may be fixedly mounted to the drawer body 38 by a pair of shaft fixing members 524 .

The connection bracket 54 may include a rail coupling part 541 coupled to the lifting device 51 and a support member coupling part 542 coupled to the support member 35 .

The rail coupling part 541 forms an upper portion of the connection bracket 54 , and may be coupled to the block holder 56 exposed to the outside of the lifting device 51 . The rail coupling part 541 and the block holder 56 may be firmly coupled by a coupling member such as a screw.

The support member coupling part 542 is formed at the lower end of the rail coupling part 541 , and may be coupled to both ends of the support member 35 . The support member coupling portion 542 is formed to be longer than the horizontal width of the rail coupling portion 541 to stably support both ends of the support member 35 .

The support member coupling portion 542 may be bent a plurality of times to form a coupling groove 842a opened upward, and both ends of the support member 35 may be seated in the coupling groove 842a. In detail, the elevating frame 352 may be inserted into the coupling groove 842a, the rail coupling part 541 is inserted into the connection bracket mounting part 351b, and the support member 35 and the connection bracket ( 54) can be coupled so that it does not flow.

The support member 35 has a structure that is seated downwardly from the upper side of the coupling groove 542a, and can be mounted on the connection bracket 54 without a coupling member such as a separate screw, and the drawer body 38 of It may have a strong and stable bonding structure from the inside. Therefore, when the service of the lifting device 51 is required, easy separation is possible, and there is an advantage that the support member 35 can be easily separated when the lifting function is not used.

Hereinafter, with reference to the drawings, the configuration of the elevating device will be described in more detail.

11 is an exploded perspective view of the structure of a lifting device, which is a main component of the drawer-side device, viewed from one direction. And, Figure 12 is an exploded perspective view of the structure of the lifting device viewed from another direction. And, Figure 13 is a cut-away perspective view showing a cross section of the lifting device.

As shown in the drawings, the elevating device 51 may have an outer shape formed by the housing 55 . In addition, the housing 55 forms a space in which the lifting shaft 57 and the block holder 56 can be accommodated, and the opened inner surface may be shielded by the rail cover 59 .

The housing 55 may include the central portion 553 and the side portion 554 . The central portion 553 may be formed at a position corresponding to the lifting shaft 57 , and at least a portion of the lifting shaft 57 may be accommodated in the central portion 553 . In addition, it may be seated on the first mounting part 383 .

The side portion 554 is formed to extend stepwisely from both sides of the central portion 553 , and is formed to be seated on the second mounting portion 383 . The side portion 554 may extend to both sides from both ends of the central portion 553 and then be bent vertically to form both sides of the housing 55 , and again at both side ends of the housing 55 . It can be bent toward the inside.

Accordingly, a space in which the lifting shaft 57 and the block holder 56 are accommodated may be formed in the housing 55 by the side portion 554 . In addition, both ends of the side portion 554 may be bent in a direction facing each other, and a housing opening 551 may be formed therebetween. The lateral width of the housing opening 551 is formed to be larger than the diameter of the elevating shaft 57 to facilitate mounting of the elevating shaft 57, and is formed to be smaller than the width of the block holder 56. The block holder 56 is prevented from being removed through the housing opening 551 . The housing opening 551 may be shielded by the rail cover 59 .

The lifting shaft 57 may be accommodated inside the housing 55 , and may be located in the central portion 553 . In addition, the elevating shaft 57 has a thread 571 formed on an outer circumferential surface thereof, so that the elevating block 567 can be moved vertically along the elevating shaft 57 when the elevating shaft 57 rotates.

The elevating block 567 includes a block body 567a in which a block through-hole 567b through which the elevating shaft 57 penetrates is formed, and a body coupling portion 567d extending to both sides from the block body 567a. may include The block body 567a is formed in a cylindrical shape, and the block through hole 567b may be formed through the center of the block body 567a in the vertical direction. A screw corresponding to the screw thread 571 is formed on the inner circumferential surface of the block through hole 567b, and thus the lifting block 567 moves up and down while moving along the screw thread 571 when the lifting shaft 57 rotates. It can be configured to move in the direction.

In addition, a block fastener 567c may be formed on the upper surface of the lifting block 567 . The block fasteners 567c are formed on both sides around the block through-holes 567b, and the screws 567f are formed so that they can be fastened, so that the elevating block 567 is coupled to the block holder 56. to be able to move together.

In addition, the body coupling portion 567d extends in both sides from the center of the block body 567a, and a block groove 567e extending in the vertical direction is formed at the extended end of the body coupling portion 567d. can The block grooves 567e on the left and right sides may be coupled to the block holder 56 , so that the lifting block 567 and the block holder 56 can be more firmly coupled.

The block holder 56 may be coupled to the lifting block 567 to be lifted together inside the housing 55 , and a part of the block holder 56 is exposed to the outside of the housing 55 and coupled to the connection bracket 54 . structure that can be

In detail, the block holder 56 may include an inner part 56a accommodated in the housing 55 and an outer part 56b exposed to the outside of the housing 55 . In addition, the block holder 56 has a hollow inside to form a space 560, and in particular, the lower part of the block holder 56, more specifically, the lower part of the inner part 56a, has the elevating block ( A block receiving portion 564 in which 567 is accommodated may be formed. The block accommodating part 564 is opened rearward and downward, and may be formed to communicate with the hollow. Accordingly, the lifting block 567 may be inserted and mounted upwardly from the lower side of the inner part 56a, and may be located inside the block receiving part 564 .

A shaft penetrating portion 562 penetrating in the vertical direction may be formed above the block receiving portion 564 , that is, in the center of the inner part 56a. The elevating shaft 57 passes through the inside of the shaft penetrating part 562 . At this time, the thread 571 of the lifting shaft 57 is not coupled to the inner circumferential surface of the shaft penetrating part 562 , and the lifting and lowering shaft 57 is not coupled to the inner peripheral surface of the shaft penetrating part 562 . The shaft 57 is formed so as not to contact the inner surface of the shaft penetrating portion 562 . In addition, in a state in which the lifting block 567 is positioned inside the block receiving part 564 , the centers of the shaft through part 562 and the block through hole 567b may be configured to be positioned on the same extension line. .

A holder fastening part 565 to which a screw 567e for coupling the elevating block 567 and the block holder 56 to each other is fastened may be formed on both sides of the outer surface of the shaft penetrating part 562 . The holder fastening part 565 is positioned at a position corresponding to the block fastener 567c, and may be disposed in a vertical direction when the lifting block 567 and the block holder 56 are coupled to each other. Accordingly, the screw 567e may pass through the block fastener 567c and be fastened to the holder fastening part 565, and the lifting block 567 and the block holder 56 may be integrally fixed. have.

Side extension portions 563 extending laterally may be formed on both sides of the shaft penetrating portion 562 . The side extension portion 563 may extend laterally from the shaft penetrating portion 562 , and may extend to both side surfaces of the housing 55 along the side portion 554 . In addition, it may be bent along the inner surface shape of the side portion 554 and may extend to the housing opening 551 . That is, the side extension portion 563 may be bent to correspond to the shape of the inner surface of the side portion 554 .

In addition, a bearing mounting portion 383 may be formed on the side extension portion 563 facing the side surface of the housing 55 . The bearing mounting portion 383 may be recessed inward, and a plurality of bearings 568b are configured to be continuously disposed in the vertical direction. The plurality of bearings 568b may be rotatably mounted by a retainer 568a , and the retainer 568a may be fixed on the bearing mounting portion 383 . The bearing 568b and the retainer 568a may be referred to as a rolling member, and the rolling member is not limited to the structure of the bearing 568b and the retainer 568a and is disposed between the block holder 56 and the housing 551 . Other configurations capable of cloud motion may be possible.

The plurality of bearings 568b are interposed between the inner surface of the housing 55 and the side extension 563 , and may roll in contact with the housing 55 and the side extension 563 , respectively. In addition, the bearings 568b may be disposed on the bearing mounting portions 383 on both sides. Accordingly, the block holder 56 can be smoothly raised and lowered from the inside of the housing 55, and in particular, it maintains a state of contact with the inner surface of the housing 55 during the lifting process, so that it does not flow stably and smoothly. can be made to rise. In addition, the inner surface of the side portion 554 in contact with the bearing 568b may be depressed at a position facing the bearing mounting portion 383 to enable a more stable rolling motion of the bearing 568b.

Meanwhile, the outer part 56b may extend from both sides of the side extension part 563 to pass through the housing opening 551 . In addition, the outer part 56b may protrude through the housing opening 551 so as to be coupled to the connection bracket 54 .

The outer part 56b forms a bracket mounting part 561 coupled to the connection bracket 54 , and the bracket mounting part 561 is located outside the housing opening 551 . Accordingly, even if the connection bracket 54 is moved while being coupled to the connection bracket 54 , the connection bracket 54 may not interfere with the housing 55 or the rail cover 59 .

Both ends of the bracket mounting part 561 may extend vertically to be connected to the side extension part 563 , respectively. At this time, the thickness of the bracket mounting part 561 is formed to be at least smaller than the width of the guide slit 511 so that the block holder 56 can be moved along the guide slit 511 .

A hollow space 560 is formed inside the block holder 56, that is, inside the inner part 56a and the outer part 56b, and the rail cover 59 is accommodated therein. . In addition, the block holder 56 may move up and down along the guide slit 511 formed by the rail cover 59 and the housing 55 .

Meanwhile, the bracket mounting part 561 may extend downward from the outside of the housing 55 . In a state where the block holder 56 is positioned at the lowermost position, the bracket mounting part 561 may be positioned further lower than the housing 55 . In this case, the housing 55 may be positioned above the take-out rail 33 so as not to interfere with the draw-out rail 33 and the area below the drawer flange 380 . In addition, the bracket mounting part 561 extends downward to pass through the pull-out rail 33 and includes the support member 35 or the support member 35 located on the inner bottom surface of the drawer body 38 . It may be coupled with the coupling bracket 54 to be coupled.

In addition, the block holder 56 has a structure in which the side extension portion 563 is extended laterally to be accommodated inside the side portion 554 , and the outer part 56b forms the housing opening 551 . To have a structure that protrudes or bends to pass through, the flow of the block holder 56 moving up and down along the housing 55 as a whole is restricted in the front-rear direction or left and right direction. Therefore, even if a load is applied to the block holder 56 when the support member 35 is lifted, the block holder 56 is not detached and can be configured to enable stable lifting and lowering.

Block restraint protrusions 569 may be formed on both sides of the side extension portion 563 adjacent to the shaft penetrating portion 562 . The block restraining protrusion 569 may extend vertically to the side extension portion 563, and may extend from a lower end to an upper end of the inner part 56a. In addition, the block restraining protrusion 569 may be coupled to the block grooves 567e on both sides of the lifting block 567 . The block restraining protrusion 569 and the block groove 567e may be inserted and coupled to each other when the elevating block 567 is moved upwardly from the lower side of the block holder 56 and coupled to each other, and the elevating block 567 ) moves upward, so that the overall bonding can proceed. The elevating block 567 and the block holder 56 can be firmly coupled to each other by the coupling of the block restraining protrusion 569 and the block groove 567e, and have a structure capable of elevating together. The block holder 56 has a structure coupled to the lifting block 567 in the vertical direction, and thus may have a structure that can be easily molded by processing such as extrusion as a whole.

That is, since the screw must be formed to move along the elevating shaft 57, the structure is complicated, and the elevating block 567, which has abrasion resistance and lubrication performance, can be injection molded with engineering plastic. In addition, the lifting block 567, which requires high strength because a load is substantially applied when the support member 35 is moved, may be formed to have a structure that can be extruded from a metal material. The lifting block 567 and the block holder 56 formed of different materials to suit each structure and environment may be coupled to each other and configured to be lifted integrally from the inside of the housing 55 .

A lower spacer 586 on which the lifting shaft 57 is rotatably supported may be provided below the lifting shaft 57 . A lower protrusion 437 protruding from the lower end of the elevating shaft 57 may be inserted. The lower spacer 586 may have a bearing-like structure, and thus the lifting shaft 57 is rotatable while supported by the lower spacer 586 .

The lower spacer 586 may be fixedly mounted to the lower cap 585 . The lower cap 585 is mounted to shield the opened lower surface of the housing 55 , and forms a lower surface of the lifting device 51 . A lower spacer seating portion 585a into which the lower spacer 586 is inserted and mounted may be formed in the center of the lower cap 585 . In addition, lower cap coupling portions 585c may be formed on both sides of the lower spacer seating portion 585a. A screw passing through the side portion 554 of the housing 55 may be fastened to the lower cap coupling portion 585c. In addition, the central portion of the lower cap 585 is formed in a shape corresponding to the central portion 553 of the housing 55 and inserted into the central portion 553 , and both ends of the lower cap 585 are directed to both sides. It protrudes and is inserted into the side portion 554 of the housing 55 to shield the opened lower surface of the housing 55, respectively.

The lifting shaft 57 may extend to an upper end of the housing 55 , and a shaft gear 572 and an upper spacer 584 may be mounted above the lifting shaft 57 .

The shaft gear 572 may be located on the upper end of the screw thread 571 , and may be integrally coupled with the lifting shaft 57 to rotate together. In addition, the shaft gear 572 may be gear-coupled to the drawer-side gear 523 mounted on the drawer-side shaft 52 in a vertically intersecting state, and receive power from the drawer-side shaft 52 . can

An upper protrusion 573 extending upward may be formed on the upper end of the lifting shaft 57 . In addition, an upper spacer 584 and a spacer fixing member 583 may be mounted through the upper protrusion 573 .

The spacer fixing member 583 may have an upper spacer seating portion 583a having a center penetrated by the elevating shaft 57 and an upper spacer 584 on which the upper spacer 584 is seated. The upper spacer seating portion 583a may be formed to have a downwardly recessed shape to accommodate at least a portion of the upper spacer 584 . In addition, spacer fixing member fastening portions 583b fixed to the inner surface of the housing 55 may be formed on both sides of the spacer fixing member 583 . Accordingly, a fastening member such as a screw penetrating the housing 55 is fastened to the spacer fixing member fastening portion 583b, so that the spacer fixing member 583 can maintain a fixed state.

In this way, the upper and lower ends of the lifting shaft 57 may be supported in a rotatable state by the upper spacer 584 and the lower spacer 586 . And, the power transmitted to the shaft gear 572 by the drawer-side gear 523 rotates the lifting shaft 57, so that the lifting block 567 and the block holder 56 can be raised and lowered. do.

Meanwhile, an upper cap 581 may be provided on the upper end of the housing 55 . The upper cap 581 shields the opened upper surface of the housing 55 , and forms the upper surface of the lifting device 51 .

A cap protrusion 581a protruding upward is formed on the upper surface of the upper cap 581 , and the cap protrusion 581a is inserted into the protrusion hole formed in the mounting bracket 53 , and the upper end of the lifting device 51 . This can be constrained.

In addition, a cap coupling portion 581e may be formed inside the upper cap 581 . The cap coupling portion 581e may have a boss-like shape and may extend toward the inner surface of the housing 55 . An end of the cap coupling part 581e may extend to contact the side part 554 , and a fastening member such as a screw passing through the housing 55 may be fastened. The upper cap 581 may be firmly fixed to the housing 55 by the fastening member.

Meanwhile, the inner surface of the upper cap 581 and the inner surface of the housing 55 may be spaced apart from each other by the cap coupling portion 581e, and the drawer-side gear 523 and the shaft gear 572 may be spaced apart from each other. This will provide a space where it can be located. That is, the drawer-side gear 523 and the shaft gear 572 are located in the inner region of the upper cap 581 and may be coupled to each other.

A guide protrusion 581c may be formed on one surface of the upper cap 581 that shields the housing opening 551 . The guide protrusion 581c may protrude at positions corresponding to both ends of the housing opening 551 , and may be formed to correspond to the thickness of the housing 55 .

In addition, a housing support portion 581b extending in a stepped state to both sides of the guide protrusion 581c may be formed. The housing support part 581b is configured to support the side part 554 of the housing 55 from the inside while the upper cap 581 is mounted on the housing 55 .

Accordingly, the upper cap 581 may be inserted through the opened upper side of the housing 55 , and the mounting of the upper cap 581 may be guided by the guide protrusion 581c. In addition, the opened upper surface of the housing 55 may be shielded by the upper surface of the upper cap 581 , and the upper cap 581 may be fixed to the housing 55 by a fastening member.

Meanwhile, the rail cover 59 may be provided in the housing 55 . The rail cover 59 may shield the housing opening 551 and form the guide slit 511 .

In detail, the rail cover 59 may be formed of the same plate-shaped metal material as the inner side plate 392 . Therefore, in the state in which the rail cover 59 is mounted, the appearance of the elevating device 51 has the same texture as that of the inner side of the drawer 32 , that is, the inner side plate 392 and the inner side plate 392 . can have it

The rail cover 59 may shield the housing opening 551 to shield a configuration accommodated inside the housing 55 . To this end, the rail cover 59 includes a cover shield 591 positioned in the housing opening 551 area, and a cover bent at both ends of the cover shield 591 to the inside of the housing 55 . It may include a portion 592 and a cover extension portion 593 bent outward from the extended end of the cover bent portion 592 and inserted into the side extension portion 563 . In addition, upper and lower ends of the rail cover 59 may be coupled to and fixed to the upper cap 581 and the lower cap 585 .

On the other hand, the upper left and right side surfaces of the rail cover 59 may be formed with cover cutouts 594 cut in a stepped shape downward. The cover cutout 594 may be formed to be seated on the upper cap 581 when the rail cover 59 is mounted.

The cross-sectional shape of the rail cover 59 may be formed to have a shape corresponding to the hollow shape of the inside of the block holder 56 , and may be disposed to penetrate the hollow of the block holder 56 . Accordingly, the block holder 56 may be moved in the vertical direction while being penetrated by the rail cover 59 .

In addition, the width of the cover shielding portion 591 in the horizontal direction may be smaller than that of the housing opening 551 . That is, when the rail cover 59 is mounted, the outer end of the cover shield 591 and the inner end of the housing opening 551 may be spaced apart from each other to form the guide slit 511 extending in the vertical direction. do.

Among the outer parts 56b of the guide slit 511 , it may be formed to correspond to a thickness of a portion forming both left and right side surfaces. Both side surfaces of the outer part 56b pass through the guide slit 511 and move along the guide slit 511 when the block holder 56 moves up and down.

Meanwhile, the cover extension part 593 may extend from the end of the cover bent part 592 to the inside of the side extension part 563 through the inner end of the housing opening 551 . That is, the distance between both ends of the cover extension part 593 may be greater than the distance between the housing openings 551 .

Accordingly, in a state in which the rail cover 59 is mounted, most of the housing opening 551 is shielded by the cover shielding part 591 and the guide slit 511 is formed at the same time. Also, the inside of the guide slit 511 may be shielded by the cover extension 593 . Accordingly, the outer side of the housing opening 551 may be formed by the guide slit 511 , so that the inside of the drawer unit 32 may have the same metallic texture as a whole. In addition, the inner surface of the drawer unit 32 on which the lifting device 51 is mounted is configured such that all parts except for the gap formed by the guide slit 511 are covered with a metal material, so that the appearance can be further improved. do.

14 is a partial perspective view illustrating a power transmission structure of the drawer-side device. And, FIG. 15 is a perspective view illustrating a mounting structure of a drawer shaft among the drawer-side devices.

As shown in the drawing, shaft mounting portions 384 may be formed at both upper ends of the outer surface of the drawer body 38 . The shaft mounting part 384 may be located in a region between the front surface of the drawer body 38 and the mounting part 383 , and provides a space in which the drawer side shaft 52 can be mounted.

In addition, the shaft mounting portion 384 includes a front opening 384a having at least a portion opened at the front end to communicate with the front surface of the drawer body 38 , and at least a portion at the rear end to communicate with the mounting portion 383 . may include an opened rear opening 384b.

In addition, the drawer-side shaft 52 may be disposed on the shaft mounting part 384 . In addition, a shaft fixing member 524 may be provided for fixing the drawer-side shaft 52 , and a mounting portion 384c for mounting the shaft fixing member 524 may be further formed.

In detail, the drawer-side shaft 52 may extend from the front opening 384a to the rear opening 384b. In addition, the drawer-side shaft 52 may include a drawer shaft 521 having a predetermined length.

The drawer connecting member 522 is coupled to the front end of the drawer shaft 521 , and the drawer connecting member 522 may be exposed to the front of the drawer 32 through the front opening 384a. Also, the drawer connecting member 522 may be coupled to the door connecting member 416 when the door 31 and the drawer 32 are coupled to each other as described above, and the door-side device 41 may be coupled to each other. can be rotated together according to the driving of

In addition, a drawer-side gear 523 may be provided at the rear end of the drawer shaft 521 . The drawer-side gear 523 may be formed in a bevel gear shape, and may be coupled to the shaft gear 572 through the rear opening 384b. That is, the drawer-side shaft 52 and the elevating shaft 57, which are arranged to cross each other perpendicularly, may be connected to each other by the drawer-side gear 523 and the shaft gear 572, so that power transmission is possible. do.

At this time, the drawer-side gear 523 mounted on the rear end of the drawer-side shaft 52, that is, the rear end of the drawer shaft 521 and the rear end of the drawer shaft 521 passes through the rear opening 384b. It is inserted through the shaft insertion hole 552 of the housing 55 . Accordingly, the rear end of the drawer-side shaft 52 including the drawer-side gear 523 may be located in the inner region of the upper cap 581 of the elevating device 51 .

In addition, a shaft fixing member 524 may be provided on the drawer-side shaft 52 . A pair of shaft fixing members 524 may be provided on both left and right sides, and may serve to support the drawer-side shaft 52 so as to be rotatable in a state in which it is not tilted or moved. The shaft fixing member 524 of the front of the pair of shaft fixing members 524 may be fixedly mounted to the mounting part 384c of the shaft mounting part 384, and the shaft fixing member 524 of the rear side is the At least a portion may be accommodated inside the housing 55 .

A through hole through which the drawer shaft 521 passes may be formed in the shaft fixing member 524 , and a bearing may be provided inside the through hole to support the drawer shaft 521 . Accordingly, the shaft fixing member 524 provides stable support of the drawer-side shaft 52 and enables the drawer-side shaft 52 to be mounted in a rotatable state.

A pair of the mounting parts 384c may be disposed on the shaft mounting part 384 , and may be formed to be coupled to the shaft fixing member 524 . The mounting portion 384c may be recessed in the center so that a part of the shaft fixing member 524 can be accommodated, and the shaft fixing member 524 may be fixedly mounted to the mounting portion 384c by a screw. can

The drawer side shaft 52 may be mounted on an outer surface of the drawer body 38 , and the lifting device 51 may be mounted on an inner surface of the drawer body 38 . In addition, the mounting part 383 to which the lifting device 51 is mounted and the shaft mounting part 386 to which the drawer-side shaft 52 is mounted may communicate with each other through the rear opening 384b. In addition, the drawer-side gear 523 formed at the rear end of the drawer-side shaft 52 may have a structure connected to the shaft gear 572 inside the lifting device 51 through the rear opening 384b.

Hereinafter, a state in which the drawer door 30 of the refrigerator 1 according to an embodiment of the present invention having the structure as described above is drawn out and moved up and down will be described in more detail with reference to the drawings.

16 is a perspective view of the drawer door in a closed state;

As shown in the drawing, in the refrigerator 1, both the rotary door 20 and the drawer door 30 are kept closed in the food storage state. In this state, the user can store food by pulling out the drawer door 30 .

The drawer door 30 may be provided with a plurality of upper and lower portions, and may be drawn out and opened by a user's operation. At this time, the user's manipulation may be performed by touch manipulation of the manipulation unit 301 provided on the front side of the rotary door 20 or the drawer door 30 , and the manipulation device 302 provided at the lower end of the drawer door 30 may be operated by the user. It may be possible to input an opening operation by In addition, the manipulation unit 301 and the manipulation device 302 may be configured to individually operate the drawer door 30 , the drawer door 30 , and the support member 35 , respectively. Of course, it may also be possible for the user to hold the handle of the drawer door 30 and open it.

In the following, although the opening and elevating of the lowermost drawer door 30 among the drawer doors 30 disposed at the upper and lower sides is described as an example, both the upper and lower drawer doors 30 are used in the same manner. It will be able to be withdrawn and moved up and down.

17 is a perspective view of the drawer door in a fully opened state; And, FIG. 18 is a cross-sectional view of the drawer door in the same state as FIG. 17 .

As shown in the drawing, the drawer door 30 is pulled out forward according to a user's pulling out operation of the drawer door 30 . The drawer door 30 may be drawn out while the draw-out rail 33 is extended.

On the other hand, the drawer door 30 may be configured to be drawn in and out by driving the drawer and drawer motor 14 instead of the user pulling and opening the drawer directly. The pull-out rack 34 provided on the bottom surface of the drawer door 30 may be coupled with the pinion gear 141 which is rotated when the pull-out motor 14 provided in the cabinet 10 is driven, and thus the The drawer door 30 is drawn in and out according to the driving of the drawer and drawer motor 14 .

The pull-out distance of the drawer door 30 may be at least a distance at which the front space S1 inside the drawer part 32 can be completely exposed to the outside. Accordingly, it is possible to prevent the support member 35 from interfering with the doors 20 and 30 or the cabinet 10 disposed above in this state.

In this case, the drawer door 30 may have a pull-out distance by the drawer door 30 and the drawer door 30 disposed in the drawer 10 and/or the drawer door 30 . The withdrawal/intake detection device 15 may be configured as a detection sensor for detecting the magnet 389 so as to detect a state in which the drawer door 30 is fully drawn out or closed.

For example, as illustrated, a magnet 389 may be provided at the bottom of the drawer unit 32 and a detection sensor may be provided in the cabinet 10 . The withdrawal/input detection device 15 has a position corresponding to the position of the magnet 389 when the drawer door 30 is closed and the position of the magnet 389 when the drawer door 30 is fully withdrawn. can be provided in Accordingly, it is possible to determine the state of the drawer door 30 by the drawer/in/out detection device 15 .

In addition, if necessary, a switch is provided at a position where the drawer door 30 is completely retracted and a position where it is drawn out, so that the drawer door 30 can be sensed to be drawn in and out, and the number of revolutions of the drawer door 30 can be adjusted. In/out of the drawer door 30 may be detected by counting or a sensor measuring a distance between the rear surface of the door unit 31 and the front end of the cabinet 10 .

In a state in which the drawer door 30 is completely drawn out, the lifting motor 411 may be driven to raise the support member 35 . The support member 35 may be configured to operate in a situation in which the drawer door 30 is sufficiently drawn out to ensure safe lifting and lowering of the food or container 36 seated on the support member 35 .

That is, in a state in which the drawer door 30 is drawn out and the front space is completely exposed to the outside, the support member 35 rises and the container 36 seated on the support member 35 or the stored food is another door. It can be prevented from interfering with the ones 20 and 30 or the cabinet 10 .

The support member 35 may start to rise in a state in which the drawer door 30 is completely drawn out. In addition, in order to prevent damage to the user's safety and stored food, the support member 35 may be configured to start rising after a set time has elapsed after the drawer door 30 is pulled out.

Of course, after the drawer door 30 is pulled out, the user may directly input the elevation of the support member 35 by manipulating the manipulation unit 301 . That is, the manipulation unit 301 may be operated to take out the drawer door 30 , and the manipulation unit 301 may be operated again to lift the support member 35 . In addition, the user may manually withdraw the drawer door 30, and after withdrawing the drawer door 30, operate the manipulation unit 301 to raise and lower the support member 35.

19 is a perspective view of a state in which the support member of the drawer door is fully lifted. And, FIG. 20 is a cross-sectional view of the drawer door in the same state as FIG. 19 .

17 and 18 , in a state in which the drawer door 30 is drawn out, the support member 35 may be raised/lowered. The support member 35 may be raised and lowered by the operation of the lifting motor 411 , and the door-side device 40 of the door part 31 and the drawer-side device 50 of the drawer part 32 are connected to each other. In a state in which they are coupled to each other, power is transmitted so that the support member 35 can be raised and lowered.

Looking at this in more detail, when the elevating motor 411 is operated, the door-side shafts 413 on both sides connected to the elevating motor 411 rotate, and the first connected to the door-side shaft 413 is rotated. The gear 414 and the second gear 415 rotate.

The rotational force of the door-side device 41 can be transmitted to the drawer-side device 50 by the door connecting member 416 and the drawer connecting member 522 connected to each other. Accordingly, the rotational force transmitted from the door-side device 41 rotates the drawer-side shaft 52 and the drawer-side gear 523 at the end of the drawer-side shaft 52 .

The drawer-side gear 523 and the shaft gear 572 transmit a rotational force while being connected to each other, and the rotational force of the drawer-side shaft 52 rotates the lifting shaft 57 . By the rotation of the lifting shaft 57 , the lifting block 567 and the block holder 56 move upward along the lifting shaft 57 . At this time, all portions of the lifting device 51 exposed to the inside of the drawer 32 are shielded by the rail cover 59 . In addition, the block holder 56 moves in the vertical direction along the guide slit 511 formed by the rail cover 59 .

At this time, the block holder 56 is moved upward together with the connection bracket 54 in a state coupled to the connection bracket 54 , and the support member 35 coupled to the connection bracket 54 is also is moved upwards At this time, the connection bracket 54 is connected to the center of both sides of the support member 35 , and the lifting device 51 is also disposed in the center of both sides of the support member 35 so that the support member 35 is inclined. It can be stably raised and lowered without

In particular, the elevating block holder 56 may be formed in a stepped or bent shape corresponding to each other inside the housing 55 so that flow in the left/right or front/rear direction does not occur during the elevating movement.

On the other hand, the support member 35 is continuously raised to a sufficient height to facilitate access to the food or container 36 seated on the support member 35 so that the user can easily lift the food or container. can

The lifting height of the support member 35 may be increased until the block holder 56 is positioned at the upper end of the lifting slot. And, when the lifting of the support member 35 is completed, the lifting motor 411 stops driving.

When the lifting completion signal of the support member 35 is input, the driving of the lifting motor 411 is stopped, and for this purpose, a height sensing device 16 capable of detecting the position of the support member 35 is provided can The height sensing device 16 is provided on the door part 31 , and may be provided at a height corresponding to a maximum rising position of the support member 35 and a lowest descending position of the support member 35 .

The height detection device 16 may be configured as a detection sensor for detecting the magnet 355 , and detects the magnet 355 provided in the support member 35 to determine whether the lifting of the support member 35 is completed. can judge In addition, the height sensing device 16 may be configured as a switch structure to turn on the switch in a state in which the support member 35 is maximally raised. In addition, the height sensing device 16 may be provided on the lifting rail 44 or the lifting shaft 57 to detect a position in which the support member 35 is maximally raised. In addition, it may be determined whether the support member 35 is maximally raised according to a change in the load applied to the lifting motor 411 .

On the other hand, when the support member 35 is raised to the maximum height, the lifting motor 411 is stopped. In this state, the support member 35 is located inside the drawer part 32 , but the food or container 36 seated on the support member 35 is larger than the opened upper surface of the drawer part 32 . It may be located at a high position, and easy access by the user is possible. In particular, since it is not necessary to excessively bend the waist for the operation of lifting the container 36, a safer and more convenient operation is possible.

After the user's food storage operation is completed, the user may lower the support member 35 by manipulating the manipulation unit 301 . The lowering of the support member 35 may be performed by reverse rotation of the elevating motor 411, and may be gradually performed through a process opposite to the above-described process.

Then, when the lowering of the support member 35 is completed, the state is as shown in FIG. 17 or 18 , and the lowering of the support member 35 may be completed by the height sensing device 16 . The height sensing device 16 may be further provided at a corresponding position to detect the magnet provided in the support member 35 when the support member 35 is positioned at the lowest position. Accordingly, when the completion of the lowering of the support member 35 is sensed, the lifting motor 411 is stopped.

Then, after the elevating motor 411 is stopped, the drawer door 30 may be retracted. At this time, the drawer door 30 may be closed by a user's manipulation or may be closed by driving the drawer/input motor 14 . When the drawer door 30 is completely closed, the state shown in FIG. 16 may be obtained.

Meanwhile, the present invention may be capable of various other embodiments in addition to the above-described embodiments.

Hereinafter, other embodiments of the present invention will be described with reference to the drawings. Among other embodiments of the present invention, the same components as those of the above-described embodiment use the same reference numerals, and a detailed description thereof will be omitted.

21 is a perspective view showing the structure of the elevating assembly according to another embodiment of the present invention.

As shown in the drawings, the lifting assembly 40 according to another embodiment of the present invention may include a door-side device 41 and a drawer-side device 50 . The door-side device 41 may be provided in the door part 31 of the drawer door 30 , and the drawer-side device 50 may be provided in the drawer 32 of the drawer door 30 . When the door part 31 and the drawer part 32 are coupled, the drawer-side device 50 and the door-side device 41 are connected to each other so that power can be transmitted. In addition, the door-side device 41 and the drawer-side device 50 may be separated from each other, and thus the door part 31 and the drawer part 32 may be separated from each other.

The door-side device 41 may be provided inside the door part 31, and includes a motor assembly 412 including a lifting motor 411 and gears connected to the lifting motor 411, and the motor assembly ( It may include a door-side shaft 417 connected to and rotated with 412 , and a door connecting member 416 provided at an end of the door-side shaft 417 .

At this time, the motor shaft of the elevating motor 411 may be disposed in a front-rear direction, and the motor assembly 412 has a width direction that is horizontal with the front surface of the door unit 31 so that the motor is mounted on the door unit 31 . It is possible to minimize the depth occupied for installing the assembly 412 . In addition, the door-side shaft 417 may be disposed in the front-rear direction to be connected to the door connecting member 416 . Of course, if necessary, the door-side shaft 417 and the door connecting member 416 may be integrally configured.

In addition, a pair of the motor assembly 412 , the door shaft 417 , and the door connecting member 416 may be provided on both left and right sides, and may be configured to have the same structure. In addition, the lifting motors 411 provided on both sides may be operated together, and the support member 35 may be operated at the same time so that the support member 35 can be raised and lowered in a horizontal state without inclination, and may generate a rotational force of the same size.

By disposing the elevating motors 411 on both left and right sides, the size of the elevating motor 411 can be reduced compared to when one elevating motor 411 is provided, and the motor assembly 412 moves in the front-rear direction. thickness can be minimized. Accordingly, it is possible to sufficiently secure the insulating thickness of the door part 31 .

In addition, a greater force can be provided to the support member 35 by using the pair of elevating motors 411 , and thus, the support member 35 even in a state in which a heavy food or container is seated on the support member 35 . ) can ensure a more stable lifting operation.

Meanwhile, the drawer-side device 50 may be configured to be connected to the door-side device 41 and has the same structure as the drawer-side device 50 of the above-described embodiment, so a detailed description thereof will be omitted.

22 is a perspective view of a refrigerator according to another embodiment of the present invention.

As shown in the drawing, the refrigerator 1 according to another embodiment of the present invention may include a cabinet 10 having a storage space divided up and down, and a door 2 for opening and closing the storage space. .

The door 2 is provided on the front upper part of the cabinet 10 to open and close the upper storage space, and the door 2 is provided on the front lower part of the cabinet 10 to open and close the lower storage space. A door 30 may be provided. The drawer door 30 can be pulled out and moved forward and backward as in the above-described embodiment, and the support member 35 inside the drawer door 30 can be moved up and down in a state in which the drawer door 30 is drawn out. can have

A manipulation unit 301 or a manipulation device 302 may be provided on one side of the door unit 31 , and the drawer door 30 may be pulled out and inserted by the manipulation of the manipulation unit 301 or the manipulation device 302 . / or the lifting of the support member 35 is possible.

A support member 35 is provided in the drawer part 32 , and the support member 35 can be moved up and down by driving the lifting assembly 40 provided in the door part 31 and the drawer part 32 . do. Since the configuration of the drawer door 30 and the configuration of the elevating assembly 40 are the same as those of the above-described embodiment, a detailed description thereof will be omitted.

A plurality of containers 361 may be provided on the support member 35 . The container 361 may be an airtight container such as a kimchi container, and a plurality of containers may be seated on the support member 35 . The container 361 may be lifted together when the support member 35 is lifted. Accordingly, at least a portion of the container 361 may protrude upward of the drawer part 32 in a raised state, and the user can easily lift the container 361 .

Meanwhile, even when the drawer door 30 is drawn out, the support member 35 may interfere with the rotary door 20 when the rotary door 20 is open. ) is configured so that it can be raised in a closed state. To this end, a door switch for detecting the opening and closing of the rotary door 20 may be further provided.

23 is a perspective view of a refrigerator according to another embodiment of the present invention.

As shown in the drawings, a refrigerator 1 according to another embodiment of the present invention includes a cabinet 10 forming a storage space, and a door 2 opening and closing the opened front of the cabinet 10 . can do.

The door 2 forms a front exterior of the refrigerator 1 in a closed state, and may be configured as a drawer door 30 drawn out in a front-rear direction. A plurality of the drawer doors 30 may be continuously arranged in the vertical direction, and each of the drawer doors 30 may be independently drawn in and out by a user's operation, and a support member inside the drawer door 30 . (35) may be configured to be liftable. The drawer door 30 is pulled out and the support member 35 is lifted separately, respectively, and after the drawer door 30 is pulled out, the support member 35 is lifted, the support member 35 is After the lowering of the drawer door 30 may be continuously made.

In addition, when a plurality of drawer doors 30 are vertically disposed, the support inside the drawer door 30 disposed relatively downward in a state in which the drawer door 30 disposed at the upper side is drawn out. It is possible to prevent the member 35 from being raised so that stored food and containers do not interfere with the drawer door 30 drawn out from above.

23 shows, for example, that the support member 35 is raised while the drawer door 30 positioned at the lowermost position is drawn out, but all of the drawer doors 30 disposed above are also shown. After withdrawal, the support member 35 provided therein may be raised and lowered.

Of course, if the height of the drawer doors 30 positioned above is sufficiently high, the drawer door 30 positioned at the lowermost position or the supporting member 35 of the plurality of drawer doors 30 positioned relatively lower. It may have a structure that can only be lifted up and down.

24 is a perspective view of a refrigerator according to another embodiment of the present invention.

As shown in the drawings, a refrigerator 1 according to another embodiment of the present invention includes a cabinet 10 forming a storage space, and a door 2 opening and closing the opened front of the cabinet 10 . can do.

The storage space inside the cabinet 10 may be partitioned up and down, and if necessary, the storage space at the upper part and the lower part may be partitioned into left and right sides again.

The door 2 is provided on the upper portion of the cabinet 10 and is rotatably mounted to open and close the upper storage space, and the door 2 is provided on the lower portion of the cabinet 10 and is mounted to be drawn in and out. It may be composed of a standing door (2) for opening and closing the lower storage space.

In addition, the lower space of the cabinet 10 may be partitioned left and right, and a pair of drawer doors 30 may be provided to open and close each partitioned lower space. A pair of the drawer doors 30 are arranged side by side on the left and right sides, and each drawer door 30 may have the same structure.

The drawer door 30 is the same as the configuration of the above-described embodiment, and can be drawn in and out by a user's operation. It is possible to conveniently access food or containers inside the drawer door 30 .

Claims (25)

a cabinet having an upper storage space and a lower storage space;
a door unit for opening and closing the lower storage space by drawing in and out;
a drawer unit connected to the door unit and pulled out from the lower storage space;
a support member provided inside the drawer, on which food or a container is seated;
a motor assembly provided in the door unit and providing power;
and a lifting device extending from both sides of the inside of the drawer in a direction crossing the withdrawal direction of the door, coupled to both sides of the support member, and elevating the support member by power transmitted from the motor assembly. refrigerator to do.
The method of claim 1,
The drawer unit includes at least a bottom surface, and side portions extending vertically from both ends of the bottom surface,
The refrigerator, characterized in that the lifting device is provided on the side portion.
The method of claim 1,
The refrigerator, characterized in that the recessed mounting portion to accommodate the lifting device is formed inside the drawer unit.
The method of claim 1,
The lifting device is
a housing mounted on an inner surface of the drawer unit;
an elevating shaft rotatably mounted inside the housing by power transmitted from the motor assembly and having a thread formed on an outer circumferential surface;
and an elevating holder penetrating through the elevating shaft from the inside of the housing and elevating along the elevating shaft,
The lifting holder is connected to both ends of the support member, and the refrigerator is characterized in that it is lifted together with the support member.
5. The method of claim 4,
A stepped space may be formed on the inner surface of the housing,
The elevating holder is a refrigerator, characterized in that formed in a shape corresponding to the stepped space.
5. The method of claim 4,
The lifting device is
and a rolling member between the housing and the elevating holder to guide the elevating holder in contact with an inner surface of the housing and an outer surface of the elevating holder.
7. The method of claim 6,
The housing is
a central portion recessed at a position corresponding to the elevating shaft;
It is formed to be stepped from the central part on both sides of the central part, and includes side parts for accommodating both sides of the elevating holder,
The rolling member is a refrigerator, characterized in that located in the side portion.
5. The method of claim 4,
The lifting holder is
a shaft penetrating portion through which the elevating shaft passes and accommodated in the central portion;
a side extension portion extending to both sides of the shaft penetrating portion and accommodated inside the side portion and in contact with the rolling member;
and a bracket mounting part protruding outside the housing and connected to the support member.
9. The method of claim 8,
A connection bracket connecting the support member and the elevating holder is mounted on the bracket mounting portion,
The connection bracket is
a rail coupling part coupled to the bracket mounting part by a separate coupling member;
and a support member coupling part formed at a lower end of the rail coupling part and on which the support member is detachably seated.
9. The method of claim 8,
It is mounted to penetrate the space opened in the vertical direction inside the elevating holder, and comprises a rail cover for shielding the opening of the housing,
The elevating holder is a refrigerator, characterized in that it moves up and down along the rail cover.
11. The method of claim 10,
and a plurality of plates formed of the same material as the rail cover on inner and outer surfaces of the drawer unit to form an inner exterior of the drawer unit.
The method of claim 1,
and the support member includes a lifting frame having both sides connected to the lifting device, respectively, and having a frame shape corresponding to the shape of the bottom surface of the drawer unit.
13. The method of claim 12,
and the support member includes a plate-shaped lifting plate mounted on the lifting frame to shield the frame.
The method of claim 1,
The drawer unit,
The refrigerator, characterized in that the support member is formed in a box shape with an open top so that the support member can be accommodated therein.
15. The method of claim 14,
The inside of the drawer unit,
It is disposed in the front with respect to the front-rear direction in which the door is pulled out and includes a front space in which the support member is disposed, and a rear space disposed in the rear of the front space,
The drawer unit is drawn out so that the front space is located outside the lower storage space, and at least a portion of the rear space is located inside the lower storage space.
a cabinet in which an upper storage space and a lower storage space are formed;
a door unit for opening and closing the lower storage space;
a drawer unit connected to the door unit and pulled out together;
a support member provided inside the drawer, on which food or a container is seated;
a motor assembly provided in the door part;
a pair of lifting devices provided on both sides of the inside of the drawer unit and coupled to both ends of the support member to elevate the support member;
and a pair of drawer-side shafts extending from one end of the drawer unit facing the rear surface of the door unit to be connected to the elevating device and transmitting the power of the motor assembly to the elevating device.
17. The method of claim 16,
The motor assembly is provided with a pair,
Refrigerator, characterized in that provided on both sides of the rear surface of the door unit so as to be respectively connected to the pair of drawer-side shafts.
17. The method of claim 16,
and a door-side shaft rotatably connected to the motor assembly and having both extended ends connected to the drawer-side shaft to transmit power of the motor assembly.
19. The method of claim 18,
The door-side shaft is composed of one shaft and passes through the motor assembly,
Both ends of the door-side shaft are connected to the drawer-side shaft by a gear and rotate at the same speed at the same time.
19. The method of claim 18,
An end of the door-side shaft and the drawer-side shaft are disposed perpendicularly to each other, and are connected by gears that are engaged and rotated to rotate together.
17. The method of claim 16,
The lifting device is
a housing mounted on an inner wall of the drawer unit;
an elevating shaft rotatably disposed in the housing, having a screw thread formed on an outer circumferential surface and extending in the vertical direction;
and a lifting holder mounted inside the housing to ascend and descend along the lifting shaft and connected to both ends of the support member.
22. The method of claim 21,
One end of the drawer-side shaft is provided with a drawer-side gear,
The lifting shaft is provided with a lifting gear,
The drawer side gear and the lifting gear are gear-coupled to each other in a direction crossing each other inside the housing.
23. The method of claim 22,
The refrigerator, characterized in that the housing has an insertion hole having a shape corresponding to the drawer-side shaft and the drawer-side gear so that the lifting gear can be engaged with the drawer-side gear inside the housing.
22. The method of claim 21,
A shaft mounting part on which the drawer-side shaft is mounted is formed on the outer surface of the drawer part,
A mounting part on which the elevating device is mounted is formed on the inner surface of the drawer part,
The refrigerator, characterized in that the shaft mounting part and the mounting part communicate with each other so that the drawer-side shaft can pass therethrough.
25. The method of claim 24,
Plates are provided on the inner and outer surfaces of the drawer unit in the form of a plate of a metal material to form the outer surfaces of the inner and outer surfaces of the drawer unit,
The plate is a refrigerator, characterized in that for shielding the shaft mounting portion, the mounting portion, and the pull-out rail.

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