CN108139143B

CN108139143B - Refrigerator with a door

Info

Publication number: CN108139143B
Application number: CN201680046477.0A
Authority: CN
Inventors: 森田洋平
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2015-10-13
Filing date: 2016-07-20
Publication date: 2021-05-28
Anticipated expiration: 2036-07-20
Also published as: WO2017064894A1; JP2017075713A; CN108139143A; JP6688032B2

Abstract

A refrigerator, comprising: a rib-shaped front rail part (71) which is arranged at the upper end of the front surface of the storage box (35) and extends along the left and right sides, a back rail part (72) which is arranged at the back surface of the storage box (35) and the lower surface of which is arranged below the front rail part (71) and extends along the left and right sides, a front movable part (51) which is arranged across the front wall (35a) of the storage box (35) and is clamped and slid on the front rail part (71), a back movable part (52) which is arranged across the back wall (35b) of the storage box (35) and is clamped and slid on the back rail part (72), and a longitudinal partition part (41) which connects the front movable part (51) and the back movable part (52); the front movable part (51) is provided with a hook-shaped engaging part (51d) engaged with the front rail part (71), a first elastic part (52d) extending along the back surface of the storage box (35) of the rear movable part (52), and a first claw part (52e) protruding forwards from the first elastic part (52d) and engaged with the lower surface of the back rail part (72).

Description

Refrigerator with a door

Technical Field

The present invention relates to a refrigerator provided with a partition in a storage box.

Background

Patent document 1 discloses a related art refrigerator. The refrigerator includes a plurality of storage compartments, and a storage box that slides back and forth is disposed in a predetermined storage compartment. The storage box is provided with a longitudinal partition part for partitioning the inside into left and right parts and a transverse partition part for partitioning the inside into front and back parts.

The inner wall of the storage box is provided with a groove part extending along the circumferential direction, and the rail and the movable part are arranged in the groove part. The movable portion is engaged with and slides on the rail, and is movable in the longitudinal direction of the rail. The opening surface of the groove is covered with a cover having an insertion opening extending in the longitudinal direction. The front end of the longitudinal partition is connected to the movable part of the front wall of the storage box through the insertion opening, and the rear end of the longitudinal partition is connected to the movable part of the rear wall of the storage box through the insertion opening. Both side end portions of the lateral partition are connected to the movable portions of both side walls of the storage box through the insertion port, respectively.

The movable section slides on rails of the front wall and the rear wall of the storage box, so that the vertical partition sections can move in parallel in the left-right direction. The movable portion slides on rails on both side walls of the storage box, and the horizontal partition portion can move in parallel in the front-rear direction. This can partition the inside of the storage box at a desired position.

Documents of the prior art

Patent document

U.S. patent application publication No. 2010/0319391 (FIGS. 3 and 5)

Disclosure of Invention

Technical problem to be solved by the invention

However, according to the conventional refrigerator, the vertical partition and the horizontal partition are coupled to a movable portion buried in the inner wall of the storage box. Therefore, the longitudinal partition portion and the lateral partition portion cannot be easily detached from the storage box when the storage box is cleaned, and the refrigerator is not convenient.

The invention aims to provide a refrigerator capable of improving convenience.

Technical solution for solving technical problem

To achieve the object, the present invention is characterized by comprising: a storage box which is arranged in a storage chamber and can slide in the front-back direction, a rib-shaped front rail part which is arranged at the upper end of the front surface of the storage box and extends along the left and right, a back rail part which is arranged at the back surface of the storage box and the lower surface of which is arranged below the front rail part and extends along the left and right, a front movable part which is arranged across the front wall of the storage box and is clamped and slid on the front rail part, a back movable part which is arranged across the back wall of the storage box and is clamped and slid on the back rail part, and a longitudinal partition part which connects the front movable part and the back movable part, wherein the front movable part is provided with a hook-shaped clamping part which is clamped with the front rail part, and the rear movable part is provided with a first elastic part which vertically extends along the back surface of the storage box and a first claw part which is protruded forwards from the first elastic part and is engaged with the lower surface of the back surface track part.

In addition, the present invention is characterized in that the refrigerator having the above-described structure includes a protruding portion protruding from a rear surface of the storage box and parallel to the rear surface rail portion near a lower end of the first elastic portion.

In addition, the present invention is characterized in that, in the refrigerator of the above structure, it includes: the side movable part is provided with a second elastic part extending up and down along the side surface of the storage box and a second claw part protruding from the second elastic part towards the side wall of the storage box and engaged with the lower surface of the side rail part.

In addition, the present invention is characterized in that the refrigerator having the above-described structure includes a protruding portion protruding from a side surface of the storage box and parallel to the side rail portion near a lower end of the second elastic portion.

In the refrigerator having the above-described configuration, the vertical partition portion may include one or a plurality of vertical connecting members arranged side by side in the vertical direction, the horizontal partition portion may include one or a plurality of horizontal connecting members arranged side by side in the vertical direction, and a distance between the adjacent upper vertical connecting member and the adjacent lower horizontal connecting member is larger than a distance in the vertical direction between the second claw engagement position with respect to the side rail portion and the holding position in the engagement released state.

In the refrigerator having the above-described configuration, the vertical partition portion includes one or a plurality of vertical connecting bodies arranged side by side in the vertical direction, the horizontal partition portion includes one or a plurality of horizontal connecting bodies arranged side by side in the vertical direction, and the refrigerator includes an operating portion including a first insertion portion into which the vertical connecting body at the upper end is inserted and a second insertion portion into which the horizontal connecting body at the upper end is inserted, and the operating portion is formed so as to be capable of switching between a locked state in which the vertical connecting body and the horizontal connecting bodies are sandwiched and the movement of the operating portion is locked and an unlocked state in which the locked state is released, and in the unlocked state, a gap between a lower surface of the first insertion portion and the vertical connecting body inserted into the first insertion portion is larger than a distance in the vertical direction between the engagement position and the holding position of the second claw portion.

In the refrigerator having the above configuration, one or both of the distal end of the second claw portion and the distal end of the side rail portion may have an inclined surface inclined downward and outward.

In the refrigerator having the above-described configuration, the storage box may include a handle portion adjacent to a lower portion of the front rail portion via a groove portion extending in the left-right direction, and the engaging portion may be loosely fitted in the groove portion.

Effects of the invention

According to the present invention, the longitudinal partition portion is connected between the front movable portion provided across the front wall of the storage box and the rear movable portion provided across the rear wall. Thus, the longitudinal partition portion is supported by both the front and rear ends, and can be smoothly moved in the left-right direction. The hook-shaped engaging portion of the front movable portion engages with a rib-shaped front rail portion protruding from the upper end of the front wall of the storage box, and a first claw portion provided on the rear movable portion via a first elastic portion engages with a rear rail portion. Therefore, the engagement of the first claw portion is released against the first elastic portion, and the front movable portion, the rear movable portion, and the longitudinal partition portion are integrally rotated forward to detach the longitudinal partition portion. Therefore, the longitudinal partition part can be easily detached to clean the storage box, and the convenience of the refrigerator is improved. Further, since the front surface of the storage box is not formed with an elastic part extending vertically, the appearance is not affected.

Brief description of the drawings

Fig. 1 shows a side sectional view of a refrigerator according to a first embodiment of the present invention.

Fig. 2 shows a perspective view of an upper stage case of a refrigerator according to a first embodiment of the present invention.

Fig. 3 is a side sectional view illustrating a front portion of an upper stage case of a refrigerator according to a first embodiment of the present invention.

Fig. 4 is a side sectional view showing a rear portion of an upper stage box of a refrigerator according to a first embodiment of the present invention.

Fig. 5 shows a front sectional view of a right portion of an upper stage case of a refrigerator according to a first embodiment of the present invention.

Fig. 6 is a side sectional view showing a state where a vertical partition is removed from an upper stage box of a refrigerator according to a first embodiment of the present invention.

Fig. 7 is an enlarged view showing an engagement state of a side surface movable portion of an upper stage case of a refrigerator according to a first embodiment of the present invention.

Fig. 8 is an enlarged view showing an engaged state of other side surface movable portions of the upper stage box of the refrigerator according to the first embodiment of the present invention.

Fig. 9 is an enlarged view showing an engaged state of other side surface movable portions of the upper stage box of the refrigerator according to the first embodiment of the present invention.

Fig. 10 shows a perspective view of an upper stage case of a refrigerator according to a second embodiment of the present invention.

Fig. 11 shows a front view of an operating portion of a refrigerator according to a second embodiment of the present invention.

FIG. 12 is a perspective view of a holding part of an operation part of a refrigerator according to a second embodiment of the present invention, which is omitted

FIG. 13 is a vertical sectional view of the operation section taken through line A in FIG. 10.

Fig. 14 is a side sectional view showing a state where a partition is removed from an upper stage case of a refrigerator according to a second embodiment of the present invention.

Fig. 15 is a side sectional view showing a rear portion of an upper stage box of a refrigerator according to a third embodiment of the present invention.

Fig. 16 shows a front sectional view of a right portion of an upper stage case of a refrigerator according to a third embodiment of the present invention.

Fig. 17 is a perspective view showing an upper stage case of a refrigerator according to a fourth embodiment of the present invention.

Fig. 18 is a side sectional view showing an upper portion of a front movable portion of an upper stage box of a refrigerator according to a fourth embodiment of the present invention.

Fig. 19 is a side sectional view showing an upper portion of a rear movable portion of an upper case of a refrigerator according to a fourth embodiment of the present invention.

Fig. 20 is a side sectional view showing an upper portion of a side movable portion of an upper stage box of a refrigerator according to a fourth embodiment of the present invention.

Detailed Description

First embodiment

Embodiments of the present invention will be described below with reference to the accompanying drawings. Fig. 1 shows a side sectional view of a refrigerator of a first embodiment. The refrigerator 1 has a main body 2 formed of a heat insulating box 3 filled with a foam heat insulating material.

A refrigerating chamber 5 is provided in an upper portion of the main body 2. Freezing

chambers

7 and 8 are provided below the refrigerating chamber 5 via a partition wall 11. Freezing chamber 7 and freezing chamber 8 are provided in parallel and communicate with each other in the vertical direction, and are partitioned by partition 13 extending in the left and right directions and disposed in the front portion of main body 2. A vegetable compartment 9 is provided below the freezing compartment 8 via a partition wall 12 filled with a heat insulating material. A machine room 20 is provided behind the lower portion of the heat insulating box body 3.

The refrigerating chamber 5 refrigerates and preserves the stored articles, and the vegetable chamber 9 keeps a higher temperature than the refrigerating chamber 5 to refrigerate and preserve the stored articles such as vegetables. Freezing chamber 7 and freezing chamber 8 freeze and store the stored materials. The machine room 20 is internally provided with a compressor 21 for operating a refrigeration cycle.

The refrigerating compartment 5 is opened and closed by a pair of doors 15 of a double door pivotally supported at the left and right ends, respectively. Freezing chamber 7, freezing chamber 8, and vegetable chamber 9 are opened and closed by

doors

17, 18, and 19 that slide back and forth, respectively.

A storage box 31 made of resin is integrally formed on the rear surface of the door 17. The storage box 31 slides on a rail 7a provided on a side wall of the freezing chamber 7, and the door 17 and the storage box 31 slide back and forth integrally.

The door 18 is provided with a pair of frames 18a extending rearward from both side portions of the rear surface, and a storage box 32 made of resin is placed on the frames 18 a. A plurality of rollers (not shown) are disposed in the frame 18a, and the rollers rotate on rail grooves (not shown) provided on both side walls of the freezing chamber 8, so that the door 18 and the storage box 32 integrally slide back and forth.

Similarly, the door 19 of the vegetable compartment 9 is provided with a pair of frames 19a extending rearward from both side portions of the rear surface, and a storage box 33 made of resin is placed on the frames 19 a. A plurality of rollers (not shown) are disposed in the frame 19a, and the rollers rotate on rail grooves (not shown) provided on both side walls of the vegetable compartment 9, so that the door 19 and the storage box 33 slide back and forth integrally.

The storage box 33 of the vegetable compartment 9 includes a lower stage box 34 disposed below and placed on the frame 19a, and an upper stage box 35 placed on the lower stage box 34. The upper stage case 35 slides back and forth on the lower stage case 34.

The back surfaces of freezing

chambers

7 and 8 are provided with cold air passages 24, and the back surface of refrigerating chamber 5 is provided with a cold air passage 25 communicating with a damper (not shown) via cold air passages 24. The cold air passage 24 is provided with a cooler 22 and a blower 23, and an outlet 24a facing the freezing chamber 7 and the cooler 22 are opened with a return port 24b for returning cold air. The cooler 22 is connected to the compressor 21 to generate cold air.

The cold air duct 25 is opened with an outlet 25a facing the refrigerator compartment 5, and a communication passage (not shown) communicating with the vegetable compartment 9 is led out from the refrigerator compartment 5. The vegetable compartment 9 is provided with a return port (not shown) for returning the cooled air to the cooler 22.

By driving compressor 21 and blower 23, the air flowing through cold air passage 24 exchanges heat with cooler 22 to generate cold air, which is discharged from discharge port 24a to freezing chamber 7. The interior of freezing chamber 7 and freezing chamber 8 is cooled by the cold air discharged to freezing chamber 7. The cold air flowing through freezing chamber 7 and freezing chamber 8 is returned to cooler 22 through return port 24 b.

When the damper is opened, a part of the cold air flowing through cold air duct 24 flows into cold air duct 25 and is discharged from discharge port 25a to refrigerating compartment 5. The refrigerator compartment 5 is cooled by the cold air discharged to the refrigerator compartment 5. The cold air flowing in the refrigerating chamber 5 flows into the vegetable chamber 9 through the communication path, and the vegetable chamber 9 is maintained at a temperature higher than that of the refrigerating chamber 5. The cold air flowing through the vegetable compartment 9 returns to the cooler 22 through the return port.

Fig. 2 is a perspective view showing the upper stage box 35 of the storage box 33 of the vegetable compartment 9. Leg portions 35d, which are placed on the side walls of the lower case 34 (see fig. 1), are provided on the lower surfaces of both side end portions of the upper case 35 in a protruding manner. The front wall 35a of the upper case 35 is provided with a grip portion 35e for allowing a finger to catch and pull out the upper case 35.

The front wall 35a of the upper stage case 35 is provided with a front movable portion 51 that moves in the left-right direction along the wall surface. The rear wall 35b of the upper stage case 35 is provided with a rear movable portion 52 that moves in the left-right direction along the wall surface. The side walls 35c of the upper stage casing 35 are provided with a pair of side surface movable portions 53 that move in the front-rear direction along the wall surfaces, respectively.

The front movable portion 51 and the rear movable portion 52 are connected by the longitudinal partition portion 41. The vertical partition 41 includes a plurality of vertical connecting

bodies

41a and 41b (see fig. 3) made of rod-shaped members that connect the front movable portion 51 and the rear movable portion 52 and are arranged in parallel in the vertical direction.

The left and right side movable portions 53 are connected by the horizontal partition portion 42 intersecting the vertical partition portion 41. The horizontal partition 42 has horizontal connecting

bodies

42a and 42b (see fig. 5) made of rod-like members which are vertically arranged and connect the movable portions 53 on both side surfaces. The horizontal connecting

members

42a and 42b are arranged at a height different from that of the vertical connecting

members

41a and 41 b.

Fig. 3 and 4 show side sectional views of the front and rear portions of the upper stage case 35. In addition, fig. 5 shows a front sectional view of the right portion of the upper stage case 35. The front surface of the upper box 35 is provided with a rib-shaped front rail portion 71 extending in the left-right direction and protruding forward from the upper end of the front wall 35 a. The front rail portion 71 is adjacent to the grip portion 35e via a groove portion 74 extending in the left and right directions.

The rear surface of the upper-stage box 35 is provided with a rear rail portion 72 bent コ at the upper end of the rear wall 35b and extending to the left and right. The lower surface of the rear rail portion 72 is disposed below the front rail portion 71. Both side surfaces of the upper stage case 35 are provided with rib-shaped side rail portions 73 protruding from the side walls 35c and extending forward and backward. The lower surface of the side rail portion 73 is disposed below the front rail portion 71.

A rib-like protruding portion 75 parallel to the back surface rail portion 72 is provided below the back surface rail portion 72 so as to protrude from the rear wall 35 b. A rib-like protruding portion 76 parallel to the side rail portion 73 protrudes from the side wall 35c below the side rail portion 73. The protruding

portions

75 and 76 are disposed near the lower ends of the

elastic portions

52d and 53d, respectively, which will be described later.

The front movable portion 51 provided astride the front wall 35a of the upper case 35 includes an upper surface portion 51a, a coupling portion 51b, and an engagement portion 51 d. The upper surface portion 51a is placed above the front wall 35 a. The coupling portion 51b is provided with a plurality of holes 51c extending downward from the upper surface portion 51a along the inner surface of the front wall 35a and arranged in parallel in the vertical direction.

The engaging portion 51d is bent in a hook shape from the front end of the upper surface portion 51a, and engages with the rib-shaped front surface rail portion 71. The distal end of the engagement portion 51d is loosely fitted in the groove portion 74 having a predetermined gap in the vertical direction. Thus, the front movable portion 51 is disposed so as to be movable in the left-right direction by engaging and sliding on the front rail portion 71.

The rear movable portion 52 provided astride the rear wall 35b of the upper stage case 35 includes an upper surface portion 52a, a coupling portion 52b, and an elastic portion 52 d. The upper surface portion 52a is placed on the rear wall 35 b. The coupling portion 52b is provided with a plurality of holes 52c extending downward from the upper surface portion 52a along the inner surface of the rear wall 35b and arranged in parallel in the vertical direction.

The elastic portion 52d (first elastic portion) is formed to extend from the upper surface portion 52a up and down along the back surface of the upper stage case 35 to a position below the back surface rail portion 72. A lower portion of the elastic portion 52d is provided with a claw portion 52e (first claw portion) projecting in the direction of the rear wall 35b and engaging with the lower surface of the back surface rail portion 72. Thus, the rear movable portion 52 is disposed so as to be movable in the left-right direction by engaging and sliding on the rear rail portion 72. A lower portion of the claw portion 52e is formed with an inclined surface 52f inclined in a direction away from the rear wall 35b toward the outside.

Further, since the lower surface of the rear surface rail portion 72 is disposed below the front surface rail portion 71, the elastic portion 52d extending in the vertical direction elastically deforms in the front-rear direction. Thus, the claw portion 52e is movable back and forth between the engagement position and the disengagement position with respect to the rear surface rail portion 72 by the elasticity of the elastic portion 52 d.

The side movable portion 53 provided astride the two side walls 35c of the upper case 35 has an upper surface portion 53a, a coupling portion 53b, and an elastic portion 53d, as in the configuration of the rear movable portion 52. The upper surface portion 53a is placed on the side wall 35 c. The coupling portion 53b is provided with a plurality of holes 53c extending downward from the upper surface portion 53a along the inner surface of the side wall 35c and arranged in parallel in the vertical direction.

The elastic portion 53d (second elastic portion) is formed to extend from the upper surface portion 53a up and down along the side of the upper stage case 35 to below the side rail portion 73. A claw portion 53e (second claw portion) that protrudes in the direction of the side wall 35c and engages with the lower surface of the side rail portion 73 is provided at the lower portion of the elastic portion 53 d. Thereby, the side movable portion 53 is disposed so as to be movable in the front-rear direction by engaging and sliding on the side rail portion 73. A lower portion of the claw portion 53e is formed with an inclined surface 53f inclined in a direction away from the side wall 35c toward the outside.

Further, since the lower surface of the side rail portion 73 is disposed below the front rail portion 71, the elastic portion 53d extending in the vertical direction elastically deforms in the front-rear direction. Thus, the pawl portion 53e is movable back and forth between the engagement position and the disengagement position with respect to the side rail portion 73 by the elasticity of the elastic portion 53 d.

Upper surface 51a, upper surface 52a, and upper surface 53a are formed to have a width larger than that of coupling 51b, coupling 52b, and coupling 53b, respectively. The engaging portions 51d are provided at the left and right ends of the upper surface portion 51a, respectively. The elastic portions 52d are provided at the left and right end portions of the upper surface portion 52a, respectively. The elastic portions 53d are provided at the front and rear end portions of the upper surface portion 53a, respectively. This can reduce backlash when the front movable portion 51, the rear movable portion 52, and the side movable portion 53 slide.

Further, the inner surface pitch between the engaging portion 51d of the front movable portion 51 and the elastic portion 52d of the rear movable portion 52d may be formed to be slightly smaller than the distance between the outer surfaces of the front surface rail portion 71 and the rear surface rail portion 72. As a result, as shown by the one-dot chain line 52 d' in fig. 4, the elastic portion 52d is inclined downward in the expanding direction due to its elasticity.

The upper stage box 35 accommodated in the vegetable compartment 9 is contracted by cooling, and the inclination of the elastic portion 52d is offset. Therefore, rattling of the upper stage case 35 during contraction can be suppressed, and the front movable portion 51 and the rear movable portion 52 can be easily moved left and right. At this time, since the engaging portion 51d is short in the vertical direction and hardly elastically deforms, the upper portion of the front wall 35a can be formed to be tiltable in the front and rear direction by elasticity.

Similarly, the pitch between the inner surfaces of the left and right side surface movable portions 53d may be formed to be slightly smaller than the pitch between the outer surfaces of the side surface rail portions 73. Thereby, as shown by the one-dot chain line 53 d' in fig. 5, the elastic portion 53d is inclined in a direction in which the downward direction expands due to the elasticity. Therefore, the backlash of the upper stage case 35 during contraction can be suppressed, and the side surface movable portion 53 can be easily moved forward and backward.

The vertical partition 41 connects the front movable portion 51 and the rear movable portion 52 by fitting both ends of the vertical connecting body 41a and the vertical connecting body 41b into the

holes

51c and 52c, respectively. The horizontal partition 42 connects the left and right side movable portions 53 by inserting both ends of the horizontal connecting body 42a and the horizontal connecting body 42b into the left and right holes 53c, respectively. In the present embodiment, the horizontal connecting member 42a, the vertical connecting member 41b, and the horizontal connecting member 42b are arranged in this order from above. The vertical connecting member 41a may be disposed above the horizontal connecting member 42a, and the vertical connecting member 41b may be disposed below the horizontal connecting member 42 b.

In the refrigerator 1 having the above-described configuration, when the storage box of the vegetable compartment 9 is pulled out, the stored material can be taken out and put into the upper stage box 35. When the vertical connecting body 41a of the vertical partition 41 is grasped and moved in the left-right direction, the front movable portion 51 and the rear movable portion 52 slide on the front rail portion 71 and the rear rail portion 72, respectively. Thereby, the longitudinal partition portion 41 moves in parallel in the left-right direction integrally with the front movable portion 51 and the rear movable portion 52.

When the lateral connecting body 42a of the lateral partition portion 42 is gripped and moved in the front-rear direction, the side movable portion 53 slides on the side rail portion 73. Thereby, the lateral partition portion 42 moves in parallel in the front-rear direction integrally with the side movable portion 53. Therefore, the vertical dividing portions 41 and the horizontal dividing portions 42 can be easily arranged at desired positions.

At this time, since the front and rear ends of the longitudinal partition portion 41 are supported by the front movable portion 51 and the rear movable portion 52, the longitudinal partition portion 41 can be moved smoothly. Further, since the left and right ends of the lateral partition portion 42 are supported by the side surface movable portions 53, the lateral partition portion 42 can be moved smoothly.

When cleaning the upper stage cartridge 35, the vertical partition 41 and the horizontal partition 42 are removed. First, the engagement of the claw portions 53e of the left and right side movable portions 53 is released against the elastic portions 53 d. Then, the engagement of the claw portion 52e of the rear movable portion 52 is released against the elastic portion 52 d. Then, as shown in the side sectional view of fig. 6, the front movable portion 51, the rear movable portion 52, and the longitudinal partition portion 41 are integrally rotated forward around the engaging portion 51d and detached. When the vertical connecting member 41a of the upper stage contacts the horizontal connecting member 42a of the upper stage, the side movable portion 53 and the horizontal partition portion 42 are lifted up integrally and detached.

At this time, when the engagement of the claw portion 53e of the side surface movable portion 53 is released, the side surface movable portion 53 is raised to the holding position of the engagement released state, and then the engagement of the claw portion 52e of the rear movable portion 52 is released.

Fig. 7 is an enlarged view showing the progression of the engaging position and the holding position of the pawl portion 53 e. The upper surface of the claw portion 53e at the engagement position is close to and faces the lower surface of the side surface rail portion 73. The pawl portion 53e moves substantially parallel to the engagement release position where the engagement between the side rail portions 73 is released from the engagement position, and is lifted up to be placed at the holding position. The inclined surface 53f of the claw portion 53e (shown by a chain line in the figure) at the holding position abuts on the tip of the upper surface of the side surface rail portion 73. Thus, the elastic portion 53d is elastically biased upward of the side movable portion 53, and the pawl portion 53e is prevented from returning to the engagement position, and the pawl portion 53e is held in the engagement released state.

At this time, a distance D1 (see fig. 5) between the adjacent lower vertical connecting member 41b and the lower horizontal connecting member 42b is formed to be larger than a vertical distance E between the engaging position and the holding position of the claw portion 53E. This allows the claw portion 53e of the side surface movable portion 53 to be lifted and arranged at the holding position without interfering with the lower horizontal connecting member 42b and the upper vertical connecting member 41 b. Therefore, the vertical partition portion 41 and the horizontal partition portion 42 can be easily detached.

The claw portion 53e can increase the strength by increasing the length L in the vertical direction. At this time, since the inclined portion 53f is provided at the lower portion of the claw portion 53E, the distance E between the engagement position and the holding position can be reduced even if the length L is increased. This makes it possible to easily dispose the pawl 53e at the engagement position at the holding position. Further, since the claw portion 52e of the rear movable portion 52 also has the same inclined surface 52f (see fig. 4), the claw portion 52e at the engagement position can be easily disposed at the holding position.

When the upper vertical connecting member 41a is disposed above the upper horizontal connecting member 42a, the distance therebetween is set to be greater than the distance E. That is, the distance between the upper vertical connecting member and the lower horizontal connecting member adjacent to each other may be set to be larger than the distance E.

The claw portion 53e and the side rail portion 73 may have other shapes. Fig. 8 is an enlarged view showing an example of deformation of the claw portion 53 e. The lower surface of the claw portion 53e is formed as a horizontal surface, and the inclined surface 53f is omitted (see fig. 7). The upper surface of the claw portion 53e at the engagement position is close to and faces the lower surface of the side surface rail portion 73. The claw portion 53e (shown by a chain line in the figure) at the holding position passes over the side surface rail portion 73, and the lower surface of the claw portion 53e abuts against the upper surface of the side surface rail portion 73. Therefore, the pawl 53e is prevented from returning to the engagement position by the side rail portion 73, and the engagement released state is maintained.

Fig. 9 is an enlarged view showing an example of deformation of the side rail portion 73. An inclined surface 73a inclined in a direction away from the side wall 35c toward the outside is formed on the upper surface of the distal end portion of the side rail portion 73. The upper surface of the claw portion 53e at the engagement position is close to and faces the lower surface of the side surface rail portion 73. The inclined surface 53f of the claw portion 53e (shown by a chain line in the figure) at the holding position abuts on the tip of the inclined surface 73 a. Thus, the elastic portion 53d is elastically biased upward of the side movable portion 53, and the claw portion 53e is prevented from returning to the engagement position, and the engagement released state is maintained.

At this time, since the inclined surface 73a is provided on the upper surface of the side surface rail portion 73, the distance E between the engaging position and the holding position of the claw portion 53 can be reduced. This makes it possible to easily dispose the pawl 53e at the engagement position at the holding position.

When the upper case 35 is detached from the storage case 33, the fingers of both hands are hooked on the protruding portions 76 (see fig. 5) provided on the side walls 35c of the upper case 35, and the upper case 35 is lifted up. At this time, since the protruding portion 76 is close to the lower end of the elastic portion 53d, it is possible to prevent the finger from mistakenly hooking the elastic portion 53d and releasing the engagement of the claw portion 53 e. Therefore, the upper stage case 35 can be prevented from being damaged by the impact when the upper stage case 35 falls down due to the disengagement of the claw portion 53 e.

Similarly, a protruding portion 75 (see fig. 4) provided on the rear wall 35b of the upper stage case 35 is close to the lower end of the elastic portion 52 d. Therefore, it is possible to prevent the claw portion 52e from being disengaged by the finger erroneous hooking elastic portion 52d, and to prevent the upper stage case 35 from being damaged by dropping.

According to the present embodiment, the front movable portion 51 provided astride the front wall 35a of the upper stage box 35 (storage box) and the rear movable portion 52 provided astride the rear wall 35b are connected by the vertical partition portion 41. The side movable portions 53 provided astride the two side walls 35c of the upper stage casing 35 are connected by the lateral partition portion 42. Thus, the longitudinal partition 41 and the lateral partition 42 are supported at both ends and can move stably.

The hook-shaped engaging portion 51d of the front movable portion 51 engages with a rib-shaped front rail portion 71 projecting from the upper end of the front wall 35a of the upper stage case 35. The claw portion 52e (first claw portion) of the rear movable portion 52 engages with the rear surface rail portion 72 via the elastic portion 52d (first elastic portion). The claw portion 53e (second claw portion) of the side surface movable portion 53 is engaged with the side surface rail portion 73 via the elastic portion 53d (second elastic portion).

Therefore, the engagement of the claw portion 53e is released against the elastic portion 53d, and the engagement of the claw portion 52e is released against the elastic portion 52 d. Then, the front movable portion 51, the rear movable portion 52, and the longitudinal partition portion 41 are integrally rotated forward and detached. Further, the horizontal partition portion 42 is detached by detaching the vertical partition portion 41. Accordingly, the vertical partition portion 41 and the horizontal partition portion 42 can be easily removed to perform operations such as cleaning of the upper stage cartridge 35, and convenience of the refrigerator 1 can be improved. Further, since the front surface of the upper case 35 is not formed with the elastic portion extending vertically like the elastic portion 52d, the front surface of the upper case 35 is not deteriorated in appearance.

The protruding portion 76 parallel to the side rail portion 73 is close to the lower end of the elastic portion 53 d. Therefore, it is possible to prevent the hook portion 53e from being disengaged by the finger-hooking elastic portion 53d when the upper stage case 35 is lifted. Therefore, breakage due to the impact of the drop of the upper stage cartridge 35 can be prevented.

Similarly, the protruding portion 75 parallel to the back rail portion 72 is close to the lower end of the elastic portion 52 d. Therefore, it is possible to prevent the claw portion 52e from being disengaged by the finger-hooking elastic portion 52d when the upper stage cartridge 35 is lifted. Therefore, breakage due to the impact of the drop of the upper stage cartridge 35 can be prevented.

The distance D1 between the upper vertical connecting member 41b and the lower horizontal connecting member 42b adjacent to each other is larger than the distance E in the vertical direction between the engagement position with respect to the claw portion 53E of the side rail portion 73 and the holding position in the disengaged state. This allows the claw portion 53e to be lifted and placed at the holding position without interfering with the horizontal connecting member 42b and the vertical connecting member 41 b. Therefore, the vertical partition portion 41 and the horizontal partition portion 42 can be easily detached.

One or both of the distal end of the claw portion 53e and the distal end of the side rail portion 73 have inclined

surfaces

53f and 73a inclined outward in the downward direction. This makes it possible to reduce the distance E between the engagement position and the holding position of the claw portion 53E, and to easily dispose the claw portion 53E at the engagement position at the holding position.

The handle portion 35e of the upper stage case 35 is adjacent to the lower portion of the front rail portion 71 via a groove portion 74 extending in the left-right direction, and the engaging portion 51d is loosely fitted in the groove portion 74. Thus, the front end of the hook-shaped engaging portion 51d in the groove portion 74 between the front rail portion 71 and the handle portion 35e is hidden from view, and therefore, the appearance of the upper stage case 35 can be improved.

In the present embodiment, the horizontal partition portion 42 and the side movable portion 53 may be omitted, and only the upper stage cartridge 35 may be partitioned left and right by the vertical partition portion 41. Even in this case, the vertical partition portion 41 can be easily detached by releasing the engagement of the claw portion 52e of the rear movable portion 52 without impairing the aesthetic appearance of the front surface of the upper stage case 35.

Second embodiment

Next, fig. 10 is a perspective view showing an upper stage cartridge 35 of the refrigerator 1 of the second embodiment. For convenience of explanation, the same portions as those of the first embodiment shown in fig. 1 to 9 are denoted by the same reference numerals. In the present embodiment, the operation portion 80 is provided at the intersection of the vertical dividing portion 41 and the horizontal dividing portion 42 in a plan view. The other portions are the same as those of the first embodiment.

The operation portion 80 holds the upper-stage vertical connecting body 41a of the vertical partition 41 and the upper-stage horizontal connecting body 42a of the horizontal partition 42. Specifically, as will be described later, the vertical dividing portion 41 and the horizontal dividing portion 42 are moved in parallel by the operation of the operation portion 80.

Fig. 11 is a front view showing the operation unit 80, and fig. 12 is a perspective view showing the grip 81 from which the operation unit 80 is omitted. Fig. 13 is a vertical sectional view of the operation portion 80 through the line a in fig. 10. The upper portion of the operation unit 80 is covered with the grip 81, and the lower portion is covered with the lifting unit 83.

The grip 81 is formed in a substantially circular planar shape and is disposed above the lateral connecting body 42 a. The grip 81 has a substantially C-shaped longitudinal section with an opening 81C in the lower surface. The grip 81 has a mounting portion 81a projecting from the inner circumferential surface thereof in the circumferential direction within a predetermined angular range. The upper surface of the mounting portion 81a is formed by an inclined surface inclined with respect to the horizontal in the circumferential direction.

A clamping portion 82 that abuts against the inner surface of the upper wall is disposed inside the grip portion 81. The clamping portion 82 has a cylindrical portion 82a extending downward of the opening 81 c. The peripheral wall of the cylindrical portion 82a is formed with two pairs of grooves (not shown) whose lower surfaces are open and opposed to each other. The pair of grooves are inserted into the vertical connecting body 41a, and the arm 82c radially protruding from the upper end of the groove is in contact with the vertical connecting body 41 a. The other pair of groove portions is inserted into the lateral connecting body 42a, and the arm portions 82d radially protruding from the upper ends of the groove portions are in contact with the lateral connecting body 42 a.

The lifting unit 83 is disposed below the grip 81 and has a bottomed tubular shape with an open upper surface. The lifting unit 83 includes an outer cylinder 83a and an inner cylinder 83b, and the outer cylinder 83a has a pair of opposing grooves 83c and a pair of opposing grooves 83d each having an open upper surface. The groove 83c is inserted into the vertical connecting member 41a, and the groove 83d shallower than the groove 83c is inserted into the horizontal connecting member 42 a. Therefore, the insertion portion (first insertion portion) of the vertical connecting body 41a is formed by the arm portion 82c of the holding portion 82 and the groove portion 83c of the lifting portion 83. Further, the insertion portion (second insertion portion) of the lateral connecting body 42a is formed by the arm portion 82d of the holding portion 82 and the groove portion 83d of the lifting portion 83.

The inner cylinder 83b is disposed between the groove 83c and the groove 83d, and enters the grip 81 through the opening 81 c. The upper end of the inner cylinder 83b is provided with a brim 83e that protrudes outward in the radial direction and is placed on the placement portion 81a of the grip portion 81.

A compression spring (not shown) is disposed between the bottom surface of the elevating portion 83 and the lower surface of the cylindrical portion 82a of the clamping portion 82. As a result, the holding portion 82 is biased upward to press the inner surface of the holding portion 81, and the brim portion 83e abuts against the placement portion 81a to bias the raising/lowering portion 83 downward.

Since the upper surface of the placement portion 81a is formed by an inclined surface inclined in the circumferential direction, the placement portion 81a and the brim portion 83e can slide by the rotation of the grip portion 81, and the lifting portion 83 can be lifted up and down by the distance D2.

When the grip 81 of the grip operation unit 80 is disposed at a predetermined rotational position, the lifting unit 83 is lifted, and the vertical connecting body 41a and the horizontal connecting body 42a are sandwiched between the grip 82 and the lifting unit 83. Thereby, the movement of the operation portion 80 becomes the locked state. In the locked state of the operation portion 80, even if the stored material is leaned on the vertical partition 41 or the horizontal partition 42, the vertical partition 41 or the horizontal partition 42 can be prevented from moving.

When the lifting portion 83 is lowered by rotating the holding portion 81, the lifting portion 83 is separated downward from the vertical connecting body 41a and the horizontal connecting body 42 a. Thereby, the operation unit 80 is in the unlocked state in which the locked state is released. At this time, a gap in the vertical direction of the distance D2 between the vertical connecting member 41a and the bottom surface of the groove 83c and between the horizontal connecting member 42a and the bottom surface of the groove 83D is formed.

When the grip 81 is gripped and moved in the left-right direction in the unlocked state, the operation portion 80 slides on the horizontal connecting body 42a, and the vertical partition 41 moves in parallel in the left-right direction. When the grip holding portion 81 moves in the front-rear direction, the operation portion 80 slides on the vertical connecting body 41a, and the horizontal dividing portion 42 moves in parallel in the front-rear direction. This makes it possible to easily dispose the vertical dividing portions 41 and the horizontal dividing portions 42 at desired positions.

When cleaning the upper stage cartridge 35, the operation portion 80 is put into the unlocked state, and the engagement of the claw portions 53e of the left and right side surface movable portions 53 is released against the elastic portions 53 d. Then, the engagement of the claw portion 52e of the rear movable portion 52 is released against the elastic portion 52 d. Then, as shown in the side sectional view of fig. 14, the front movable portion 51, the rear movable portion 52, the side movable portion 53, the operation portion 80, the longitudinal partition portion 41, and the lateral partition portion 42 are integrally rotated forward and detached, centering on the engaging portion 51 d.

In the unlocked state, a gap of distance D2 is formed between the bottom surface of the groove 83c of the operating portion 80 and the vertical connecting member 41 a. The distance D2 is formed to be greater than the distance E in the vertical direction between the engagement position and the holding position of the claw portion 53E (see fig. 7, 8, and 9). This allows the side surface movable portion 53 and the claw portion 53e to be lifted up and placed at the holding position without interfering with the lifting portion 83 and the vertical connecting body 41 a. Therefore, the vertical partition portion 41 and the horizontal partition portion 42 can be easily detached.

According to the present embodiment, the same effects as those of the first embodiment can be obtained. In the unlocked state, the gap (distance D2) between the bottom surface of the groove 83c (the lower surface of the first insertion portion) and the vertical connecting member 41a is larger than the distance E in the vertical direction between the engagement position of the claw portion 53E (the second claw portion) and the holding position in the unlocked state. This allows the claw portion 53e to be lifted and placed at the holding position without interfering with the lifting portion 83 and the vertical connecting body 41 a. Therefore, the vertical partition portion 41 and the horizontal partition portion 42 can be easily detached.

In the first and second embodiments, one or both of the lower vertical connecting member 41b and the lower horizontal connecting member 42b may be omitted. Thus, the inside of the upper stage case 35 is partitioned by the vertical partition 41 having a vertical coupling body 41a or the horizontal partition 42 having a horizontal coupling body 42 a.

Third embodiment

Next, fig. 15 is a side sectional view showing a rear portion of the upper stage box 35 of the refrigerator 1 of the third embodiment. Fig. 16 is a front sectional view showing the right portion of the upper stage cartridge 35. For convenience of explanation, the same portions as those of the first embodiment shown in fig. 1 to 9 are denoted by the same reference numerals. The present embodiment is provided with the vertical dividing portions 46 and the horizontal dividing portions 47 having different configurations from the vertical dividing portions 41 and the horizontal dividing portions 42 in the first embodiment. The other portions are the same as those of the first embodiment.

The vertical dividing portion 46 and the horizontal dividing portion 47 are formed of a plate-like member of a resin molded product. The longitudinal partition 46 has a plurality of engaging portions 46d projecting from the front and rear ends thereof. The fitting portion 46d is fitted into the hole 51c (see fig. 3) of the front movable portion 51 and the hole 52c of the rear movable portion 52 to support both ends of the longitudinal partition portion 46. The lateral partition 47 has a plurality of fitting portions 47d projecting from the left and right ends thereof. The fitting portion 47d is fitted into the hole portion 53c of the side movable portion 53 to support both ends of the lateral partition portion 47.

The horizontal partition 47 has horizontal connecting

bodies

47a and 47b arranged in parallel in the vertical direction through an opening 47 c. Since the vertical partition 46 is flat, a vertical connecting body connecting the front movable portion 51 and the rear movable portion 52 is formed and inserted into the opening 47 c. At this time, the distance D1 in the vertical direction between the lower end of the vertical partition 46 and the lower horizontal connecting member 47b is formed to be larger than the distance E in the vertical direction between the engaging position and the holding position of the claw portion 53E (see fig. 7, 8, and 9). This makes it possible to easily release the engagement of the claw portion 53e of the side movable portion 53.

In the present embodiment, the horizontal partition portion 47 and the side movable portion 53 may be omitted, and the inside of the upper stage cartridge 35 may be partitioned into the left and right by the vertical partition portion 46. In this case, the vertical dividing portion 46 can be easily removed by releasing the engagement of the claw portion 52e of the rear movable portion 52 without impairing the aesthetic appearance of the front surface of the upper stage case 35.

Further, although the horizontal partition 47 having a plurality of horizontal connecting

bodies

47a and 47b and the vertical partition 46 having one vertical connecting body are provided, a configuration including the horizontal partition 47 having one horizontal connecting body and the vertical partition 46 having a plurality of vertical connecting bodies may be adopted.

Fourth embodiment

Next, fig. 17 is a perspective view showing an upper stage cartridge 35 of the refrigerator 1 of the fourth embodiment. For convenience of explanation, the same portions as those of the first embodiment shown in fig. 1 to 9 are denoted by the same reference numerals. In the present embodiment, the front movable portion 51 of the first embodiment is provided with

rollers

51r and 51s (see fig. 18), and the rear movable portion 52 is provided with

rollers

52r and 52s (see fig. 19). The left and right side movable portions 53 are provided with rollers 53r and 53s (see fig. 20). The other portions are the same as those of the first embodiment.

In the upper surface portion 51a of the front movable portion 51, two rollers 51r are provided on both sides of the connecting portion 51 b. In the upper surface portion 52a of the rear movable portion 52, two rollers 52r are provided on both sides of the coupling portion 52 b. Two rollers 53r are provided in front of and behind the coupling portion 53b in the upper surface portion 53a of the side movable portion 53.

Similarly, two rollers 51s (see fig. 18) are provided on both sides of the coupling portion 51b in the engaging portion 51d of the front movable portion 51. In the elastic portion 52d of the rear movable portion 52, two rollers 52s (see fig. 19) are provided on both sides of the coupling portion 52 b. In the elastic portion 53d of the side movable portion 53, two rollers 53s are provided in front of and behind the coupling portion 53 b.

Fig. 18 shows a side sectional view of the upper part of the front movable portion 51. The roller 51r has a rotary shaft pivotally supported on the lower surface of the upper surface portion 51a and extending in the front-rear direction, and rotates on the upper end surface of the front rail portion 71 provided on the front wall 35 a. The roller 51s pivotally supported by the engaging portion 51d has a rotation axis extending in the vertical direction, and rotates on the bottom wall of the groove portion 74 provided in the front portion 35 a. The upper surface portion 51a is provided with an opening 51h into which the roller 51r is inserted. In the case where the distance between the front rail portion 71 and the lower surface of the upper surface portion 51a is large, the opening portion 51h may be omitted.

Fig. 19 is a side sectional view showing an upper portion of the rear movable portion 52. The roller 52r has a rotary shaft pivotally supported on the lower surface of the upper surface portion 52a and extending in the front-rear direction, and rotates on the upper end surface of the rear wall 35 b. The roller 52s has a rotation shaft pivotally supported by the elastic portion 52d and extending in the vertical direction, and rotates on a back surface rail portion 72 provided on the rear wall 35 b. The upper surface portion 52a is provided with an opening 52h into which the roller 52r is inserted. When the distance between the upper end surface of the rear wall 35b and the lower surface of the upper surface portion 52a is large, the opening portion 52h may be omitted.

Fig. 20 is a side sectional view showing an upper portion of the side movable portion 53. The roller 53r has a rotation shaft pivotally supported on the lower surface of the upper surface portion 53a and extending in the left-right direction, and rotates on the upper end surface of the side wall 35 c. The roller 53s has a rotation shaft pivotally supported by the elastic portion 53d and extending in the vertical direction, and rotates on the outer peripheral surface of the side wall 35 c. The upper surface portion 53a is provided with an opening 53h into which the roller 53r is inserted. When the distance between the upper end surface of the side wall 35c and the lower surface of the upper surface portion 53a is large, the opening portion 53h may be omitted.

When the vertical partition 41 or the horizontal partition 42 is gripped from above and moved, the gravity is applied downward to the front movable portion 51, the rear movable portion 52, and the side movable portion 53, and the sliding friction with the upper surface of the upper stage cartridge 35 increases. Thereby, the sliding friction can be reduced by the

rollers

51r, 52r, 53 r.

When the vertical partition 41 or the horizontal partition 42 is gripped and moved, the front movable portion 51, the rear movable portion 52, and the side movable portion 53 are tilted in the horizontal plane and press the peripheral surface of the upper stage cartridge 35. At this time, the pressing load of the front movable portion 51, the rear movable portion 52, and the side movable portion 53 which are away from the gripping position increases, and the sliding friction with the peripheral surface of the upper stage cartridge 35 also increases. Thereby, the sliding friction can be reduced by the

rollers

51s, 52s, 53 s.

One

roller

51r, 52r, 53r and two

rollers

51s, 52s, 53s may be provided, and the two rollers may be provided so as to be separated in the horizontal direction, whereby backlash during sliding can be suppressed. Three or

more rollers

51r, 52r, and 53r and three or

more rollers

51s, 52s, and 53s may be provided.

Further, only one of the

rollers

51r and 51s may be provided. Similarly, only one of the roller 52r and the roller 52s may be provided, or only one of the roller 53r and the roller 53s may be provided.

In addition, a roller having a rotation shaft inclined in the front-rear direction and rotating at a corner portion of the upper end of the front wall 35a may be provided instead of the roller 51r and the roller 51 s. This reduces the number of rollers and reduces sliding friction in the vertical direction and the horizontal direction. Similarly, a roller having a rotation shaft inclined in the front-rear direction and rotating at a corner portion of the upper end of the rear wall 35b may be provided instead of the roller 52r and the roller 52 s. Instead of the rollers 53r and 53s, rollers having rotation axes inclined in the left-right direction and rotating at end corners of the upper ends of the side walls 35c may be provided.

Further, since the upper stage cartridge 35 shrinks due to cooling, the

rollers

51s, 52s, and 53s may be separated from the outer surface of the upper stage cartridge 35. Thus, the

rollers

51s, 52s, and 53s may be provided on the

connection portions

51b, 52b, and 53b so as to be rotatable on the inner surface of the upper cassette 35.

In the first to fourth embodiments, the

vertical partitions

41 and 46 and the

horizontal partitions

42 and 47 that move in parallel are provided in the upper stage cartridge 35 that forms the storage cartridge, but may be provided in the lower stage cartridge 34 or the

storage cartridges

31 and 32. Further, upper stage box 35 provided with

vertical partitions

41 and 46 and

horizontal partitions

42 and 47 may be provided in freezing room 8 or refrigerating room 5. The vertical connecting member and the horizontal connecting member may be formed of a belt-like member such as a PP tape.

Scope of utilization within the industry

The present invention can be used in a refrigerator in which a partition is provided in a storage box.

Description of the symbols

1 refrigerator

2 main body part

3 Heat insulation box

5 refrigerating chamber

7. 8 freezing chamber

9 vegetable room

11. 12 partition wall

15. 17, 18, 19 doors

20 machinery room

21 compressor

22 cooler

23 blower

24. 25 cold air channel

31. 32, 33 storage box

34 lower box

35 upper box

35a front wall

35b rear wall

35c side wall

35e handle part

41. 46 longitudinal partition

41a, 41b longitudinal connecting body

42. 47 transverse partition

42a, 42b, 47a, 47b cross-connecting body

51 front movable part

51a, 52a, 53a upper surface portion

51b, 52b, 53b connecting part

51c, 52c, 53c holes

51d engaging part

51r, 51s, 52r, 52s, 53r, 53s roller

52 rear movable part

52d, 53d elastic part

52e, 53e claw

53 side movable part

71 front rail part

72 back rail part

73 side rail part

74 groove part

75. 76 projecting part

80 operating part

81 grip part

81a placing part

81c opening

82 clamping part

82a cylinder part

82c, 82d wrist

83 lifting part

83a outer cylinder

83b inner cylinder

83c, 83d groove part

83e eaves

Claims

1. A refrigerator, characterized in that it comprises:

a storage box disposed in the storage chamber and slidable in a front-rear direction;

a front rail part protruding forward from the upper end of the front surface of the storage box and extending in the left and right directions;

a rear rail portion having an upper end of a rear wall of the storage box bent in an コ shape and a lower surface disposed below the front rail portion and extending in the left and right directions;

a front movable part which straddles the front wall of the storage box and is clamped and slid on the front rail part;

a rear movable portion that rides over a rear wall of the storage box and slides on the rear rail portion in an engaging manner;

a longitudinal partition portion connecting the front movable portion and the rear movable portion;

the front movable part has a hook-shaped engaging part engaged with the front rail part,

and the rear movable part has:

a first elastic portion extending vertically along a back surface of the back surface rail portion and elastically deforming in a front-rear direction;

and a first claw portion protruding forward from the first elastic portion and engaging with a lower surface of the rear surface rail portion.

2. The refrigerator as claimed in claim 1, characterized in that it comprises:

a side rail part which is arranged on two sides of the storage box, and the lower surface of which is arranged below the front rail part and extends along the front and the back;

a pair of side movable parts respectively arranged on two side walls of the storage box in a spanning manner and clamped and slid on the side rail parts;

a horizontal partition portion intersecting the vertical partition portion and connecting the side movable portions;

the side surface movable portion includes:

a second elastic part extending up and down along a side surface of the storage box;

and a second claw part protruding from the second elastic part to the side wall of the storage box and engaged with the lower surface of the side rail part.

3. The refrigerator as claimed in claim 2, comprising a protrusion part protruding from a side surface of the storage box and adjacent to a lower end of the second elastic part and parallel to the side rail part.

4. The refrigerator according to claim 2 or claim 3, wherein the vertical partition portion has one or a plurality of vertical connecting bodies arranged side by side in the vertical direction, the horizontal partition portion has one or a plurality of horizontal connecting bodies arranged side by side in the vertical direction, and a distance between the vertical connecting body above and the horizontal connecting body below adjacent to each other is larger than a distance in the vertical direction between an engagement position of the second claw portion with respect to the side rail portion and a holding position in an engagement released state.

5. The refrigerator as claimed in claim 4, wherein the vertical partition has one or more vertical connectors arranged side by side up and down, and the horizontal partition has one or more horizontal connectors arranged side by side up and down, the refrigerator comprising: and an operation portion having a first insertion portion into which the upper end vertical connecting body is inserted and a second insertion portion into which the upper end horizontal connecting body is inserted, the operation portion being configured to be capable of switching between a locked state in which movement of the operation portion is locked by sandwiching the vertical connecting body and the horizontal connecting body and an unlocked state in which the locked state is released, a gap between a lower surface of the first insertion portion and the vertical connecting body inserted into the first insertion portion in the unlocked state being larger than a distance in a vertical direction between the engagement position and the holding position of the second claw portion.

6. The refrigerator according to claim 2 or 3, wherein one or both of a top end of the second claw portion and a top end of the side rail portion have an inclined surface inclined downward to an outside.

7. The refrigerator according to any one of claims 1 to 3, wherein the storage box has a handle adjacent to a lower portion of the front rail portion through a groove portion extending in the left and right direction, and the engaging portion is loosely fitted in the groove portion.