KR101788064B1 - Refrigerator - Google Patents

Abstract

The refrigerator of the present invention includes: a cabinet having a storage room therein; A main door having an opening formed in a front direction and opening / closing the storage chamber; A plurality of shelves mounted on one side of the main door; A sub door opening / closing the opening and having a front side, a side surface and a rear surface; A handle groove recessed from the side surface of the sub door so as to be pulled by a user by hand; A groove formed on one side of the handle groove; Axial grooves formed on both side surfaces of the handle groove; A lever member in the form of a rectangular plate having pivot projections formed on both sides thereof to be engaged with the shaft groove and rotated in the handle groove; A lever protruding from a position spaced apart from the pivot projection on one side of both sides of the lever member and pivoting about the pivot projection; A hook member which is disposed in a turning radius of the lever and has an extension portion to be in contact with the lever and a hook protruding from the back surface of the sub door are integrally formed and rotated up and down by the lever member; A locking groove provided on a front surface of the main door so that the hook is inserted and hooked; And an elastic member for providing an elastic force to the hook member so as to maintain the hook in the hooking groove.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator.

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

The refrigerator generally comprises a freezing room for storing food or beverage by freezing as a storage room, and a refrigerator for storing the food or beverage at a low temperature.

The refrigerator includes a top mounting type (top mounting type) in which a freezing chamber is disposed in an upper portion of a refrigerating chamber, a bottom freezer type in which a freezing chamber is disposed in a lower portion of the refrigerating chamber, and a freezing chamber and a refrigerating chamber And a side by side type partitioned into left and right sides.

In recent years, the functions of refrigerators have been diversified in their original function of storing foods in refrigeration or freezing. That is, a dispenser is installed on the door of the refrigerator to provide purified water and ice, and a display is installed on the front of the door to show and manage the state of the refrigerator.

Further, the capacity of the refrigerator tends to increase in size. In order to utilize the storage space efficiently, a door shelf or a storage case is provided mainly inside the refrigerator compartment door to form a space for storing the stored contents.

The storage case, which is provided on the inner side of the door as a separate space from the storage room, is called a home bar or an auxiliary storage room.

A door may be formed in the refrigerator compartment door to open and close the opening of the refrigerator compartment door so that the auxiliary storage compartment can be opened without opening the door to open the entire refrigerator compartment.

The sub door may be mounted in the same size as the main door or smaller than the main door.

The sub door may be vertically mounted on the horizontal axis, or may be mounted on the vertical axis so as to pivot left and right.

However, when the sub door is conventionally smaller than the main door, when the door is closed to the opening of the main door, a clearance appears between the edge of the opening and the edge of the sub door when viewed from the front, There was a problem that cold air leaked.

Further, since the sub door is mounted in the form of being embedded in the opening of the main door, there is a problem that the angle of rotation of the sub door is insufficient.

Further, the structure of the latch device for selectively coupling the sub door to the main door is complicated, and since the latch device is mounted through the sub door, there is a problem that the cool air leaks through the mounting part of the latch device.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerator in which a gap between an opening of a main door and a sub door is not visible from the front in a refrigerator having a sub door smaller than the main door .

Further, a sub-door is mounted on the opening of the main door in such a manner that the sub-door can sufficiently secure its opening angle, and the structure of the latch device is simplified, and a refrigerator is provided so as not to penetrate the sub- It has its purpose.

According to an aspect of the present invention, there is provided a refrigerator including: a cabinet having a storage chamber therein; A main door having an opening formed in a front direction and opening / closing the storage chamber; A plurality of shelves mounted on one side of the main door; A sub door opening / closing the opening and having a front side, a side surface and a rear surface; A handle groove recessed from the side surface of the sub door so as to be pulled by a user by hand; A groove formed on one side of the handle groove; Axial grooves formed on both side surfaces of the handle groove; A lever member in the form of a rectangular plate having pivot projections formed on both sides thereof to be engaged with the shaft groove and rotated in the handle groove; A lever protruding from a position spaced apart from the pivot projection on one side of both sides of the lever member and pivoting about the pivot projection; A hook member which is disposed in a turning radius of the lever and has an extension portion to be in contact with the lever and a hook protruding from the back surface of the sub door are integrally formed and rotated up and down by the lever member; A locking groove provided on a front surface of the main door so that the hook is inserted and hooked; And an elastic member for providing an elastic force to the hook member so as to maintain the hook in the hooking groove.

Preferably, the main door includes a sub-storage room in which the plurality of shelves are disposed.

Wherein the handle groove is formed horizontally on the upper surface of the sub door and the rotation shaft projection of the lever member is horizontally mounted on the handle groove and the extension part extends upwardly from the pivot axis of the hook member desirable.

And the groove portion is formed to be deeper than the depth of the handle groove in the inner direction of the sub door.

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Preferably, the hook member includes a pivoting shaft, an upwardly extending portion extending upwardly from the pivotal axis, and a rearwardly extending portion extending rearwardly from the pivotal axis, and the hook is formed at an end of the rearwardly extending portion.

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And the rotation shaft projection provided on the other side surface of the lever member is rotatably supported by the bracket.

It is preferable that a magnetic gasket is mounted on the back surface of the sub door and the hook is disposed on the outer side of the magnetic gasket.

Preferably, the gasket includes a magnet member therein, and a metal member or a magnet member is provided on the front surface of the main door.

Preferably, a magnetic gasket is mounted on the back surface of the sub door, and the handle groove, the lever member, and the hook member are disposed outside the magnetic gasket.

The handle member is formed to be long in parallel to the front surface of the sub door, and the lever member is disposed long in a direction parallel to the front surface of the sub door in the handle groove so that one side faces the front surface of the handle groove. .

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And the lever member is pivoted toward the front side of the sub door in the handle groove by a pair of pivot shafts provided on both sides of the lever member.

Preferably, the shaft groove is formed on the lower side of the handle groove and is engaged with the rotation shaft projection of the lever member.

A contact surface for contacting the extension of the hook member is formed on the lever so that the hook member is rotated by the rotation of the lever.

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The elastic member may support one side of the hook member to restore the hook member to an initial position when an external force is applied to the lever member.

The elastic member may be installed between an extension of the hook member and a front surface of the handle groove to restore the hook member to an initial position when an external force is applied to the lever member.

A first upper hinge and a first lower hinge mounted on upper and lower sides of the cabinet to pivotally support the main door; a second upper hinge mounted on upper and lower portions of the main door to support the sub door in a rotatable manner; The upper hinge and the second lower hinge.

Preferably, the handle groove is provided on the upper surface of the sub door at the opposite side of the second upper hinge.

The main door may further include a stepped portion provided around the opening.

Wherein the sub door has a front surface protruding from a front surface of the main door and a width between both front side portions larger than a width of the opening portion and a step portion so that both end portions cover the step portion, And a shape corresponding to the opening and the stepped portion of the main door.

Wherein a side surface of the sub door includes a first surface extending forward from a rear surface of the sub door and disposed inside the step portion, a second surface extending obliquely from the first surface toward an outer front side of the step portion, And a third surface extending forward from the front end of the two surfaces and disposed on the outer side in front of the step.

Wherein the second upper hinge has one end rotatably mounted on the upper surface of the main door and the other end coupled to the upper surface of the sub door, And the other end is coupled to the lower surface of the sub door.

And a stopper for restricting a maximum rotation angle of the second lower hinge is provided in the groove of the main door on which the second lower hinge is mounted.

The second upper hinge and the second lower hinge may include a rotation shaft portion mounted in a groove portion provided in the main door, a coupling portion coupled to an upper end or a lower end of the sub door, It is preferable to include the formed connection portion.

The connection portion may include a straight portion extending from the pivot shaft portion and a curved portion bent from the straight portion and leading to the coupling portion.

The main door includes an outer door having a front surface and a side surface and including an opening at an upper portion of the front surface, a door liner forming a rear surface and including an opening at an upper portion thereof, a door liner mounted on an opening portion of the outdoor door, And a coupling member for fixing the magnetic gasket to the frame cover, wherein the magnetic gasket includes a cap cover, a cap deco coupled to the upper and lower surfaces, respectively, to which the outdoor and door liners are coupled, a magnetic gasket mounted on a rear surface side of the frame cover, .

Preferably, the upper cab decor of the cab decor is provided with a rotation groove for forming a space in which the second upper hinge is mounted and rotated.

The sub door includes an outer door which forms a front surface and a side surface, a door liner which forms a rear surface, a gasket mounted along the edge of the door liner and having a built-in magnet, And a cab decor coupled to the hinges for rotatably supporting the sub doors.

The cab deco includes a lower cab deco having an upper cab deco having an engaging groove to which the hinge is coupled on an upper side and a handle groove on the other side of the upper deck and a coupling groove to which the hinge is coupled on a lower side, .

According to the refrigerator of the present invention, the gap between the opening of the main door and the sub door is not visible from the front in a refrigerator having a sub door smaller than the main door, so that the leakage of cold air can be minimized without harming the appearance .

In addition, although the sub door having a width larger than the width of the opening of the main door is employed, the middle angle of the hinge is used to sufficiently increase the opening angle of the sub door.

Further, a lever member for releasing the latch device for selectively coupling the sub door to the main door is provided in the handle groove provided on the upper surface or the side surface of the sub door, so that the user can separate the sub door from the main door and easily open it.

Further, since the latch device and the lever member can be disposed outside the gasket of the sub door, there is no part penetrating the sub door from the inside of the gasket, so that leakage of cold air through the latch device and the like can be prevented.

1 is a perspective view illustrating a refrigerator according to a preferred embodiment of the present invention.
Fig. 2 is a perspective view showing a state in which the sub door is opened in Fig. 1. Fig.
3 is an exploded perspective view of the main door as seen from the front side.
4 is an exploded perspective view showing the sub door from the rear side.
5 is a horizontal sectional view of the main door and the sub door.
6 is an enlarged perspective view of the upper hinge portion of the main door and the sub door.
7 is an enlarged partial perspective view of the lower hinge portion of the sub door.
8 is an exploded perspective view of the latch device.
9 is a view showing that the latch device is mounted in the mounting groove of the sub door.
10 is a vertical sectional view showing an operating state of the latch device.
11 is a plan view showing a state in which the sub door is closed and opened in the main door.

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

Although the illustrated refrigerator is a top-mounted type refrigerator, a refrigerator having a main door and a sub door may be applied to other types of refrigerators.

A general configuration of a refrigerator according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.

A freezer compartment is disposed at an upper portion of the cabinet 10 and a refrigerating compartment is disposed at a lower portion of the cabinet 10.

The freezing chamber door 20 for opening and closing the freezing chamber can be rotatably mounted by a hinge 22 provided on the upper right side of the cabinet 10.

A handle 24 mounted on the front surface of the freezer compartment door 20 may be provided on the left side of the front surface of the freezer compartment door 20.

The handle may not be protruded from the front surface of the door but may have a groove shape formed on a side surface or a lower surface of the freezing chamber door 20. [

The refrigerator compartment door for opening and closing the refrigerating compartment can be rotatably mounted by a hinge provided on a lower right side of the cabinet 10.

The refrigerator compartment door includes a main door 100 rotatably mounted on the right side of the cabinet 10 and a sub door 200 formed to be smaller than the main door 100 and rotatably mounted on the main door 100 ).

The handle 120 for opening and closing the main door 100 may be provided in a groove shape on the left side of the main door.

An opening 170 is formed through the inside of the main door 100 and a sub storage room 50 which is a storage space separate from the refrigerating room is installed on the rear surface of the main door 100.

The sub-storage room (50) is located in front of the refrigerating compartment when the main door (100) is closed, and may be formed as a case to be partitioned from the refrigerating compartment.

Although the sub-storage compartment 50 has a smaller width and a smaller size than the refrigerating compartment, a plurality of shelves can be installed so that the storage space inside the sub-storage compartment 50 can be efficiently used.

The sub door 200 is formed to be smaller than the main door 100 and is opened and closed to access the sub-storage room 50 mounted inside the main door 100.

On the left side of the upper surface of the sub door 200, a handle groove 234 is provided so that the user can pull the sub door 200 only by hand when the sub door 200 is to be opened.

A latch device 240 including a hook member 247 (see FIGS. 4 and 8) inserted into a latching groove 132 provided at an upper portion of the front surface of the main door 100 is mounted on the knob groove 234 .

A hooking groove 132 is formed on one side of the upper surface of the opening 170 formed in the main door 100 so as to be engaged with the hook member 247.

The latch device 240 and the latching groove 132 will be described later in detail.

A groove portion 26 having a width slightly larger than the opening portion 170 may be provided at the lower end of the front surface of the freezer compartment door 20. The groove portion 26 allows the user to easily find the handle groove 234 and easily insert the finger into the handle groove 234. [ If the groove portion 26 is not provided, the gap between the lower surface of the freezing chamber door 20 and the refrigerator compartment door or the sub door 200 is narrowed so that the grip groove 234 is not easily visible, It can be difficult to put in.

3, the assembly structure of the main door 100 will be described in detail.

First, an outdoor 110 defining a front surface and both side surfaces of the main door 110 and a door liner 160 defining a rear surface of the main door 110 are coupled.

The outdoor 110 has a "C" shape as viewed from above, and an opening 112 is formed at the upper center thereof. The opening 112 is opened upward.

The upper surface of the left side surface of the outdoor unit 110 may have a hole through which the handle 120 of a concave groove is mounted.

An opening 162 corresponding to the opening 112 of the outdoor 110 is formed on the door liner 160. The opening 162 is formed in a shape surrounded by the edge of the door liner 160 .

A pair of door ducks 166 protruding rearward and elongated in the vertical direction may be integrally provided on both sides of the rear surface of the door liner 160.

Although not shown, the gasket of the main door 100 may be formed along a rear edge of the door liner 160 and may be mounted in a groove provided outside the pair of door dies 166.

A frame cover 130 and a magnetic gasket 140 are mounted between the outdoor 110 and the door liner 160.

The frame cover 130 is mounted inside the opening 112 of the outdoor 110 and the stepped opening 170 is formed on the inner side.

The front portion surrounding the opening portion 170 is positioned behind the front surface of the outdoor 110 and the side end portion and the lower end portion thereof are connected to the front surface of the outdoor unit 110, can do.

Accordingly, the stepped portion 172 may include a side surface and a bottom surface which are formed with an opening 170 therein and whose upper surface is open and which extends forward at the side end and the lower end edge.

The frame cover 130 may be integrally formed such that both side portions and lower frame portions are stepped, and the upper frame portion is formed in a flat plate shape so that the respective frame portions are connected to each other.

A hooking groove 132 into which the hook member 247 of the latch device 240 is inserted is provided on the upper left side of the front face of the step portion 172 of the frame cover 130. The latching groove 132 may be formed simply as a through hole, but a separate member having the latching groove 132 may be coupled to the groove formed on the left side of the upper edge of the frame cover 130.

The magnetic gasket 140 is mounted on the rear side of the frame cover 130 so that the magnetic gasket 140 is not in contact with the front surface of the cabinet 10 but the gasket 224, respectively.

A groove (not shown) may be formed on the rear surface of the frame cover 130 so that the magnetic gasket 140 can be inserted along the rim of the frame cover 130.

Further, it may further comprise a coupling member 150 for fixing the magnetic gasket 140 to the frame cover 130.

The coupling member 150 is coupled to the frame cover 130 such that the magnetic gasket 140 is fixedly inserted into a groove provided on the back surface of the frame cover 130.

A plurality of engagement grooves (not shown) are provided around the rear surface of the frame cover 130 for coupling the frame cover 130 and the engagement member 150, A plurality of locking protrusions (not shown) may be provided.

Cap decors 180 and 190 are coupled to the upper and lower surfaces of the door 110 and the door liner 120, respectively.

A rotary groove 182 for mounting the rotary shaft of the upper hinge of the sub door 200 is provided on the upper right side of the upper cabinet decor 180. The rotary groove 182 is formed in the upper cabinet 180, In addition, when the upper hinge is rotated, the upper half of the upper hinge is received.

A shaft hole 184 on which the hinge shaft 185 of the upper hinge of the main door 100 is mounted is provided at the right end of the upper cab deco 180.

A shaft hole 194 on which the hinge shaft 195 of the lower hinge of the main door 100 is mounted is provided at the right end of the upper cab deco 180.

The assembling procedure of the main door 100 will be described.

First, the magnetic gasket 140 is inserted into the frame cover 130 and the coupling member 150 is engaged.

The door 110 is coupled to the door liner 120 after the frame cover 130 is coupled to the inside of the opening 112 of the outdoor unit 110.

The upper cab decor 180 and the lower cab decor 190 are coupled to the upper and lower surfaces of the door 110 and the door liner 120 coupled to each other.

A foaming agent is injected into the inner space of the main door 100 assembled in this manner.

The assembly structure of the sub door 200 will be described in detail with reference to FIG.

An outdoor 210 defining a front surface and both side surfaces of the sub door 200 and a door liner 220 defining a rear surface of the sub door 200 may be combined.

The outdoor 210 may include a front surface 211 forming a front surface and a side surface 212 bent rearward from opposite ends of the front surface 211.

The front surface 211 may be a flat surface or a slightly convex curved surface.

The rear portion of the side portion 212 is located inside the step portion 172 in the opening portion 170 of the main door 100 when the sub door 200 is closed, As shown in FIG.

The width of the front and rear portions of the sub door 200 is larger than the width of the opening 170 and the step portion 172, So as to cover the stepped portion 172.

A gap between the outer side surface of the stepped portion 172 of the main door 100 and the rear side surface of the sub door 200 as viewed from the front side is larger than the gap between the outer side surface of the step portion 172 of the sub door 200 and the rear side surface of the sub door 200, .

The sub door has a shape in which both side rear edges thereof correspond to the opening and the step of the main door.

A door dike 222 may be integrally formed on the rear surface of the door liner 220 along the edge thereof.

A rectangular gasket 224 is mounted on the outer side of the door dike 222. When the sub door 200 is closed, the gasket 224 contacts the entire surface of the step 172 surrounding the opening 170 of the main door 100.

The magnet 226 (see FIG. 5) is built in the gasket 224 as described later. When the sub door 200 is closed, the magnetic gasket (not shown) installed in the step of the main door 100 The leakage of cold air can be prevented by enhancing the sealing property by the mutual attraction force generated between the heat exchanger and the heat exchanger.

Cap decors 230 and 250 are coupled to the upper and lower surfaces of the door 210 and the door liner 220, respectively.

A coupling groove 232 for coupling the upper hinge 260 is provided at one side of the upper portion of the upper cap deco 230 coupled to the upper surface and a knob groove 234 for mounting the latch device 240 is provided at the other side .

A plurality of holes through which the plurality of screws 267 are passed are formed in the one end of the upper hinge 260, .

Further, it is preferable to mount the cover 268 after the upper hinge 260 is fastened to the coupling groove 232.

By mounting the cover 268, it is possible to prevent a safety problem such as a finger being caught without hurting the appearance.

The lower hinge 270 is coupled to the lower portion of the lower cab deco 250. The lower hinge 270 is coupled with the lower hinge 270 by a plurality of screws 277. [

It is preferable that the cover 278 is engaged after the lower hinge 270 is fastened to the coupling groove 252.

The assembling procedure of the sub door 200 will be described.

First, the rear end of the side portion 212 of the outdoor 210 and the door liner 220 are coupled to each other.

Next, the latch device 240 is mounted on the handle groove 234 of the upper cab deco 230.

Next, the upper cab decor 230 and the lower cab decor 250 are coupled to upper and lower surfaces of the outdoor 210 and the door liner 220 coupled to each other.

The foaming agent may be injected into the inner space of the sub door 200 assembled in this manner.

Thereafter, the upper hinge 260 is fastened to the upper cab decor 230, and the lower hinge 270 is fastened to the lower cab decor 250.

Then, the upper hinge 260 and the lower hinge 270 can be attached to the main door 110.

5 is a horizontal sectional view showing a state in which the sub door 200 is closed in the main door 100. As shown in FIG.

The pair of door dies 166 are formed on the rear surface of the door liner 160 of the main door 100. Grooves for inserting gaskets (not shown) of the main door 100 Respectively.

The door 210 of the sub door 200 forms a front surface and a side surface of the sub door 200 and is coupled to the door liner 220 forming the back surface of the sub door 200 and both ends of the rear side.

The door ducker 220 is integrally formed with the door liner 220 so that the door ducker 222 is inserted into the opening 170 when the sub door 200 is closed.

Mounting grooves 223 for mounting the gaskets 224 are provided on both sides of the door liner 220. The gaskets 224 are provided with mounting protrusions 225 inserted into the mounting grooves 223 have.

The gasket 224 may be formed of rubber or a flexible synthetic resin material, and may have a magnet member 226 therein.

A metallic member or a magnet member 146 may be provided in the stepped portion 170 of the frame cover 130 of the main door 100.

The metal member or magnet member 146 may form at least a part of the magnetic gasket 140 described above.

The gasket 224 is brought into close contact with the metal member or the magnet member 146 by the attraction force when the sub door 200 is closed to the main door 100. As a result, Can be further prevented.

The side surface of the sub door 200 includes a first surface 213 extending forward from the rear surface of the sub door and disposed inside the step portion 172 and a second surface 213 extending obliquely from the first surface toward the outer front side of the step portion And a third surface 215 extending forward from the front end of the second surface and disposed in front of the outer side of the step.

The side surface of the sub door 200 is formed by the outdoor 210 as described above. The first surface 213, the second surface 214, and the third surface 215 are all formed by the outdoor 210 as shown in FIG.

The first surface 213 is located behind the front surface of the main door 100 and is disposed in front of the step 172 when the sub door 200 is closed.

The second surface 214 is an inclined surface that extends forward from the front surface of the main door 100 and is arranged to face the edge of the side surface of the step portion 172 and the front surface of the main door 100.

The third surface 215 occupies most of the thickness of a portion protruding from the front surface of the main door 100 in the sub door 200. The third surface 215 not only provides the thickness of the sub door so that the heat insulating performance of the blowing agent injected into the sub door 200 can be sufficiently secured, but also the side edge of the sub door is formed so as not to be sharp.

The side surface of the sub door 200 is formed at an acute angle, which is less than 90 degrees with respect to the entire surface by the second surface 214, which is the inclined surface.

The cab decors 230 and 250 are assembled in such a manner that both sides of the outdoor 210 coupled to the door liner 220 are opened and inserted.

In the case of the conventional sub door, since the sub door is completely inserted into the opening portion and the step portion of the main door, the side surface of the sub door is formed into a flat surface.

The conventional sub door is also bent a predetermined length inwardly from the side rear end. When the cab deco is engaged, the cab deco is inserted by widening the bent portion at the rear end.

Since the second surface 214 of the sub door 200 according to the present invention is inclined in the middle of the side surface of the door 210 when the cab decors 230 and 250 are coupled to each other, More.

Nevertheless, it is not impossible to open the cabinet 210 by opening the side surface 212 of the outdoor 210, and the cap decors can be more firmly coupled.

If the second surface 214 is bent perpendicular to the first surface 213, the overall angle of the side surface 212 of the outdoor 210 may be more acute with respect to the front surface. However, in the present invention, By forming the surface 214 as an inclined surface, it is possible to reduce the overall inclination angle of the side surface and allow the dimensional tolerance of the side surface portion to be increased when the outdoor 210 is manufactured.

In addition, since the second surface 214 is an inclined surface, a gap between the front surface of the main door 100 and the second surface 214 is hardly visible from the side view, and cold air leakage through the gap is further prevented .

The mounting structure of the upper hinge and the lower hinge of the sub door will be described with reference to FIGS. 6 and 7. FIG.

The upper hinge 260 is rotatably mounted on a rotary groove 182 formed in the upper cab deco 180 having a rotary shaft at one end thereof forming the upper surface of the main door 100.

The other end of the upper hinge 260 is attached to an engaging groove 232 of the upper cap decor 230 forming the upper surface of the sub door 200 and the cover 268 is coupled thereto.

The upper hinge 260 is folded in the middle so that when the upper hinge 260 is rotated, the upper hinge 260 can be rotated to open at a larger angle without interfering with the main door 100.

A hinge of the main door 100 is mounted on the outer side of the rotary groove 182 of the main door 100 on which the rotary shaft of the upper hinge 260 is mounted.

The hinge is coupled to the middle right side of the cabinet 10 and is disposed between the freezing chamber door 20 and the main door 100 serving as a refrigerating chamber door.

The pivot shaft 105 of the hinge protrudes upward and downward so that the upper freezing chamber door 20 and the lower main door 100 are independently rotatably mounted and supported.

The lower hinge 270 is rotatably mounted on a groove portion 174 provided at a lower side of the lower portion of the step portion 172 of the main door 100.

The other end of the lower hinge 270 is coupled to a lower cab deco 250 forming a lower surface of the sub door 200 and the cover 268 is coupled to the lower cab decor 250.

FIG. 7 shows a specific shape of the lower hinge 270, and the shape of the hinge about the lower hinge 270 will be described below. The shape of the hinge itself may be the same as that of the upper hinge 260.

FIG. 7 is a perspective view of the sub door cut in a plane passing directly above the lower hinge in a state in which the sub door is opened with respect to the main door.

The lower hinge 270 includes a pivot shaft portion mounted in a groove portion 174 provided in the main door 100, a coupling portion 274 coupled to a lower end of the sub door 200, And may include connecting portions 272 and 273 that connect and bend portions.

The pivot shaft portion is provided with a pivot shaft 271 protruding downward on the lower surface thereof and inserted into an axial groove provided in the groove portion 174 and mounted.

The coupling portion 274 is fastened to the coupling groove 252 provided in the lower cabinet decor 250 forming the lower surface of the sub door 200 by a plurality of screws. .

The connection part may include a straight line part 272 extending from the pivot shaft part and a curved part 273 bent from the straight line part and leading to the coupling part 274.

The rectilinear section 272 may be disposed to be parallel to the front surface of the main door 100 when the rectilinear section 272 is rotated to its maximum extent.

The curved portion 273 extends from the rectilinear portion 272 behind the front surface of the main door 100 and extends in a direction substantially perpendicular to the front surface of the main door 100 from the rotary shaft 271 Extending to the front.

The rectilinear section 272 and the curved section 273 may be provided with reinforcing ribs 275 for improving the supporting force.

It is preferable that a stopper 280 for limiting the maximum rotation angle of the lower hinge is provided in the groove portion 174 of the main door 100 on which the lower hinge 270 is mounted.

The stopper 280 protrudes upward from the bottom of the groove 174 so that the side of the linear portion 272 of the lower hinge 270 to be rotated can be selectively held in contact with the stopper 280.

Generally, the hinge is made of a metal material having sufficient strength to support a heavy door in a rotatable manner.

Preferably, the stopper 280 is made of a metal material having sufficient strength to absorb an inertial force and an impact.

The stopper 280 may be similarly formed in the upper surface turning groove 182 of the main door 100 on which the upper hinge 260 is mounted. However, the sub door 200 is much smaller than the main door 100 It is sufficient that the stopper 280 is provided only in the lower hinge 270 because the load is light and the load is mainly applied to the lower hinge 270.

Next, the structure and operation of the latch device will be described with reference to Figs. 8 to 10. Fig.

The latch device 240 includes a hook member 247 rotatably mounted on one side of the handle groove 234 and a lever member 241 mounted on the handle groove 234 to rotate the hook .

The lever member 241 is mounted rotatably by inserting a rotary shaft projection 242 projecting laterally on both sides of the lever member 241 into an axial groove 235 formed on both sides of the knob groove 234.

The lever member 241 is formed to be less than half the thickness of the handle groove 234 so as to be rotatable within the handle groove 234.

A lever 243 is formed on one side surface of the lever member 241 to rotate the hook member 247.

The hook member 247 is rotatably mounted on a groove formed in one side of the handle groove 234.

To this end, a bracket 245 for mounting the hook member 247 to the groove may be further provided.

The bracket 245 can be coupled with a screw S to one side of the handle groove 234 through a through hole 248 formed therethrough.

An axial groove 2471 may be formed on one surface of the pivot shaft portion of the hook member 247 and an axial projection 2472 may be formed on the other surface thereof.

A protrusion (not shown) inserted into the shaft groove 2471 is provided on a side surface of the groove and a groove 246 through which the shaft protrusion 2472 is inserted may be provided on one side of the bracket 245.

The hook member 247 may integrally include an upwardly extending portion 2473 extending upward from the pivotal shaft portion and a rearwardly extending portion 2474 extending backward from the pivotal shaft portion.

When the user rotates the lever member 241, the upwardly extending portion 2473 can be rotated by the lever 243.

An elastic member 249 for rotating the upwardly extending portion 2473 to its original position is mounted between the upwardly extending portion 2473 and the front surface of the handle groove 234.

The elastic member 249 may be a spring spring.

A hook 2475 bent at an acute angle of 90 degrees or less may be integrally provided at the end of the rear extension 2474.

The hook 2475 may be inserted into a latching groove 132 provided in the main door 100 to maintain the sub door 200 coupled to the main door 100.

The upper surface of the bracket 245 may have a long hole extending in the vertical direction so that the upwardly extending portion 2473 passes through and is rotated at a predetermined angle.

10, when the sub door 200 is coupled to the main door 100, the elastic member 249 pushes the upwardly extending portion 2473, Is retained in the engagement groove (132).

When the user pulls the lever member 241 to rotate, the lever 243 rotates the upwardly extending portion 2473 of the hook member 247, so that the hook 2475 of the hook member 247 is hooked It is heard to be able to escape from the groove 132.

Since the sub door 200 can be detached from the main door 100, the user can continue to pull the handle groove 234 to open the sub door 200. [

Actually, when the user pushes and pulls the finger into the handle groove 234, the lever member 241 is rotated and the hook member 247 is rotated to release the engagement with the engagement groove 132 The sub door 200 is opened.

According to the latch device of the present invention, even when the main door is severely impacted with the sub door coupled to the main door, the locked state of the latch device is unintentionally caused by inertia or air pressure when the door is closed It can be prevented from being released.

Finally, FIG. 11 is a plan view showing a state in which the sub door is closed and an opened state in the main door.

11 (a), when the sub door 200 is closed to the main door 100, when the refrigerator is viewed from the front or side, the opening of the main door 100 and the opening of the sub door 200 No gaps between the sides are visible at all, and only one contour is visible.

When the user pulls the lever member 241 of the handle groove 234, the main door 100 is kept closed in the cabinet 10 as shown in FIG. 11 (b) And it is opened.

The sub door 200 may be provided on the upper portion of the main door 100 so that the sub door 200 may have a width larger than the width of the opening 170. [ And can be rotated to about 110 degrees without interference.

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

10: Cabinet
20: Freezer door
40: Auxiliary storage room
100: Main door
110: Outdoor
120: Handle
130: frame cover
140: Magnetic gasket
150:
160: Door Liner
180: upper cap deco
190: Lower cab deco
200: Sub door
210: Outdoor
220: Door Liner
230: upper cap deco
240: latch device
250: Lower cab deco
260: upper hinge
270: Lower hinge

Claims (32)

A cabinet having a storage room therein;
A main door having an opening formed in a front direction to open and close the storage chamber;
A plurality of shelves mounted on one side of the main door;
A sub-door composed of foamed insulating material injected into a space formed by an outer door, a door liner, and a cab deco coupled with the outdoor to open and close the opening;
A handle groove formed on one side of the cab decor to be folded in a square plate shape inward of the sub door so that the user can pull it by hand;
A groove portion which is arranged in line with the handle groove in a direction parallel to the front surface of the sub door and to which one side of the handle groove is connected;
An axial groove formed in the knob groove;
A lever member formed in a rectangular plate shape and having a pivot shaft protrusion formed to be coupled to the shaft groove and pivoting in a forward and backward direction within the handle groove;
A lever integrally formed on one side surface of the lever member;
And a hook extending from the first extending portion and protruding from a rear surface of the sub door and rotating in a vertical direction, A hook member rotated by the hook member;
A bracket formed in the groove to receive a rotation axis projection of the hook member;
A locking groove provided on a front surface of the main door so that the hook is inserted and hooked; And
And an elastic member that provides an elastic force to the hook member so as to maintain the hook in the hooking groove. The method according to claim 1,
Wherein the cap decor includes an upper cap decor and a lower cap decor. The method according to claim 1,
And the handle groove is opened at the rear side of the sub door. The method according to claim 1,
Wherein the groove portion is formed deeper than the bottom of the handle groove. The method of claim 1, wherein
And the shaft is formed adjacent to a side bottom of the handle groove. The method according to claim 1,
And the axial grooves are formed on both sides of the knob groove. The method according to claim 1,
Wherein a rib is formed on a rear surface of the lever member. The method according to claim 1,
Wherein the lever member is formed to have a thickness less than half the thickness of the handle groove. The method according to claim 1,
Wherein the lever is protruded from a side surface of the lever member. The method according to claim 1,
Wherein the first extension extends upwardly. The method according to claim 1,
Wherein the hook member further comprises a second extension portion connecting the first extension portion and the hook. The method according to claim 1,
Wherein the first extension and the hook are bent perpendicularly. The method according to claim 1,
And the bracket is screwed and fixed in the knob groove. The method according to claim 1,
Wherein the bracket is formed with a slot through which the first extension part passes. The method according to claim 1,
Wherein the lever is configured to protrude in a direction parallel to the rotation axis projection at a position spaced apart from the rotation axis projection toward the groove. A cabinet having a storage room therein;
A main door having an opening formed in a front direction to open and close the storage chamber;
A plurality of shelves mounted on one side of the main door;
A sub door coupled to the main door by an upper hinge and a lower hinge and having a front surface, a rear surface, and a rim surface, the door being opened and closed in the same direction as the main door;
A handle groove formed on one side of a rim surface of the sub door so as to be pulled by a user in a rectangular plate shape inward of the sub door;
A groove portion which is arranged in line with the handle groove in a direction parallel to the front surface of the sub door and to which one side of the handle groove is connected;
An axial groove formed in the knob groove;
A rotation shaft projection is formed to be coupled to the shaft groove
A lever member in the form of a rectangular plate that is rotated in the forward and backward directions in the knob groove;
A hook extending from the first extension to the back surface of the sub door and pivoting in a vertical direction, the hook extending from the first extension to the hook, absence;
A bracket formed in the groove to receive a rotation axis projection of the hook member;
A locking groove provided on a front surface of the main door so that the hook is inserted and hooked; And
And an elastic member that provides an elastic force to the hook member so as to maintain the hook in the hooking groove. 17. The method of claim 16,
Wherein the sub door includes a cap decal forming the rim surface. 17. The method of claim 16,
And the handle groove is opened at the rear side of the sub door. 17. The method of claim 16,
And the groove portion is formed deeper than the bottom of the handle groove. 17. The method of claim 16,
And the axial grooves are formed on both sides of the inside of the handle groove. 17. The method of claim 16,
Wherein a lever is integrally formed on one side of the lever member. A cabinet having a storage room therein;
A main door having a front surface, a rear surface, and a rim surface and having an opening in a front direction, the main door opening / closing the storage compartment by a first upper hinge and a first lower hinge coupled to the cabinet;
A first gasket mounted along the rear edge of the main door;
A metal member installed on a front surface of the main door;
A plurality of shelves mounted on one side of the main door;
A sub door coupled to the main door by a second upper hinge and a second lower hinge and having a front surface and a rear surface and a rim surface and being opened and closed in the same direction as the main door;
And a magnet member is installed inside the sub door, and when the sub door is closed, the magnet member is attracted to the front surface of the main door by the attraction force with the metal member, gasket;
A handle groove formed at one side of a rim surface of the sub door so as to be depressed inward in the sub door so that the user can pull it by hand;
A groove portion which is arranged in line with the handle groove in a direction parallel to the front surface of the sub door and to which one side of the handle groove is connected;
An axial groove formed in the knob groove;
A lever member having a rotation shaft projection formed to be coupled to the shaft groove and rotated in the forward and backward direction within the handle groove;
And a hook extending from the first extending portion and protruding from the rear surface of the sub door, the hook extending in the up and down direction, ;
A locking groove provided on a front surface of the main door so that the hook is inserted and hooked; And
And an elastic member that provides an elastic force to the hook member so as to maintain the hook in the hooking groove. 23. The method of claim 22,
The main door includes a frame cover forming a front surface,
Wherein the metal member is installed on the frame cover. 23. The method of claim 22,
Further comprising a bracket formed in a groove for receiving the rotation shaft projection of the hook member, the bracket being mounted on the groove. 23. The method of claim 22,
Further comprising a lever integrally formed on one side of the lever member,
And the lever is in contact with the first extension. 23. The method of claim 22,
Wherein the handle groove is recessed in a rectangular plate shape. 23. The method of claim 22,
Wherein the lever member is formed in a rectangular plate shape. 23. The method of claim 22,
Wherein the main door includes a cap decor forming an outer appearance,
And the knob groove is formed in the cap decor.
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