JP7272934B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to refrigerators.

It is known to provide a removable door pocket (door container) on the door of the storage compartment in a refrigerator. It is desirable that the position of the door pocket can be easily changed. On the other hand, in some cases, it may be desirable to suppress rattling of the door pocket at each arrangement position.

Japanese Patent No. 5511734 Japanese Patent No. 5656751

The problem to be solved by the present invention is to provide a refrigerator in which the arrangement of door containers can be easily changed and rattling of the door containers can be suppressed.

A refrigerator according to an embodiment has a refrigerator main body, a door, a first wall portion, a second wall portion, an uneven engagement portion, a rail portion, and a door container. The refrigerator body includes a storage compartment. The door openably closes the storage compartment. The first wall portion protrudes in a first direction toward the storage compartment from the inner surface portion of the door and extends vertically. The second wall portion protrudes in the first direction from the inner surface portion and extends in the vertical direction. The second wall faces the first wall in a second direction intersecting the first direction. The concave-convex engaging portion is provided on each of the first wall portion and the second wall portion . The rail portions protrude from side surfaces facing each other in the first wall portion and the second wall portion, respectively, and extend in the vertical direction. The door container is vertically movable between the first wall portion and the second wall portion along the rail portion. Further, the door container has an engagement structure . The engaging structure is capable of engaging with the concave-convex engaging portion at least in the vertical direction, and is movable in the vertical direction when the engaged state is released . Furthermore, the door container has a locking projection. The locking projection is vertically movable along the rail portion. Also, the locking projection has a plurality of projections on the surface facing the rail portion.

The perspective view which shows the refrigerator of 1st Embodiment. FIG. 2 is a cross-sectional view of the refrigerator shown in FIG. 1 taken along line F2-F2; The perspective view which shows the right refrigerator compartment door in 1st Embodiment. A perspective view showing the rear surface member of the right refrigerating compartment door in the first embodiment. A perspective view showing the rear surface member of the right refrigerating compartment door in the first embodiment. FIG. 4B is a cross-sectional view of the refrigerator shown in FIG. 4A taken along line F5-F5; FIG. 6 is an enlarged view of the F6 part of the refrigerator shown in FIG. 5; Sectional drawing along the F7-F7 line of the refrigerator shown in FIG. 4A. The perspective view which shows an example of the door container in 1st Embodiment. FIG. 9 is an exploded perspective view of the door container shown in FIG. 8; FIG. 9 is a cross-sectional view along the F10-F10 line of the door container shown in FIG. 8; Sectional drawing which shows the locked state of the door container in the refrigerator of 1st Embodiment. Sectional drawing which shows the unlocking state of the door container in the refrigerator of 1st Embodiment. Sectional drawing explaining attachment-and-detachment operation|movement of the door container in the refrigerator of 1st Embodiment. Sectional drawing explaining attachment-and-detachment operation|movement of the door container in the refrigerator of 1st Embodiment. The perspective view which shows an example of the door container in the refrigerator of 2nd Embodiment. Sectional drawing which shows the locked state of the door container in the refrigerator of 2nd Embodiment. The exploded perspective view which shows an example of the door container in the refrigerator of 3rd Embodiment. Sectional drawing which shows the locked state of the door container in the refrigerator of 3rd Embodiment.

Hereinafter, refrigerators according to embodiments will be described with reference to the drawings. In the following description, the same reference numerals are given to components having the same or similar functions. For example, members having plane-symmetrical shapes may be given the same reference numerals. Duplicate descriptions of these configurations may be omitted.
In this specification, unless otherwise specified, up, down, left, and right are defined based on the direction in which a user standing in front of the refrigerator sees the refrigerator. In addition, the side closer to the user standing in front of the refrigerator as viewed from the refrigerator is defined as "front", and the side farther from the refrigerator is defined as "back". As used herein, the term "horizontal direction" means the left-right direction as defined above. As used herein, the term "depth direction" means the front-back direction in the above definition. "Vertical direction" means the height direction of the refrigerator.
In the drawing, the +X direction is the right direction, the -X direction is the left direction, the +Y direction is the rearward direction, the -Y direction is the forward direction, the +Z direction is the upward direction, and the -Z direction is the downward direction.

(First embodiment)
A refrigerator 1 according to a first embodiment will be described with reference to FIGS. 1 to 14 . First, the general configuration of the refrigerator 1 will be described. However, the refrigerator 1 does not need to have all of the configurations described below, and some configurations may be omitted as appropriate.

FIG. 1 is a perspective view showing a refrigerator 1. FIG. FIG. 2 is a cross-sectional view of the refrigerator 1 shown in FIG. 1 along line F2-F2. As shown in FIGS. 1 and 2, the refrigerator 1 includes, for example, a housing 10, a plurality of doors 11, a plurality of shelves 12, a plurality of containers 13, flow path forming components 14, a cooling unit 15, and a control board 16. have. In this embodiment, the refrigerator main body 5 is formed with the above-described configuration other than the plurality of doors 11 .

As shown in FIG. 2, the housing 10 includes, for example, an inner box 10a, an outer box 10b, and a heat insulating foam material 10c. The inner box 10a is a member that forms the inner surface of the housing 10, and is made of synthetic resin, for example. The outer box 10b is a member that forms the outer surface of the housing 10, and is made of metal, for example. The outer box 10b is formed one size larger than the inner box 10a, and is arranged outside the inner box 10a. The foamed heat insulating material 10c is a foamed heat insulating material such as urethane foam, and is filled between the inner box 10a and the outer box 10b. Thereby, the housing 10 has a heat insulating property.

As shown in FIG. 1 , the housing 10 has a top wall 21 , a bottom wall 22 , left and right side walls 23 and 24 and a rear wall 25 . The upper wall 21 and the lower wall 22 extend substantially horizontally. The left and right side walls 23 and 24 rise upward from the left and right ends of the lower wall 22 and connect to the left and right ends of the upper wall 21 . The rear wall 25 rises upward from the rear end of the lower wall 22 and connects to the rear end of the upper wall 21 .

A plurality of storage chambers 27 are provided inside the housing 10 . The multiple storage compartments 27 include, for example, a refrigerator compartment 27A, a vegetable compartment 27B, an ice making compartment 27C, a small freezer compartment 27D, and a main freezer compartment 27E. In this embodiment, the refrigerator compartment 27A is arranged at the top, the vegetable compartment 27B is arranged below the refrigerator compartment 27A, the ice making compartment 27C and the small freezer compartment 27D are arranged below the vegetable compartment 27B, and the ice making compartment 27C and the small freezer compartment 27D are arranged below the vegetable compartment 27B. A main freezer compartment 27E is arranged below the small freezer compartment 27D. However, the arrangement of the storage compartment 27 is not limited to the above example. 27E may be arranged, and the vegetable compartment 27B may be arranged below the main freezer compartment 27E. The housing 10 has an opening on the front side of each storage chamber 27 that allows food to be taken in and out of each storage chamber 27 .

Openings of the plurality of storage chambers 27 are closed by a plurality of doors 11 so as to be openable and closable. The plurality of doors 11 includes, for example, left and right refrigerator compartment doors 11Aa and 11Ab that close the opening of the refrigerator compartment 27A, a vegetable compartment door 11B that closes the opening of the vegetable compartment 27B, an ice compartment door 11C that closes the opening of the ice compartment 27C, and a small freezer. It includes a small freezer compartment door 11D that closes the opening of compartment 27D and a main freezer compartment door 11E that closes the opening of main freezer compartment 27E.

The left refrigerating compartment door 11Aa and the right refrigerating compartment door 11Ab, which are adjacent to each other on the left and right, are, for example, double doors. The left refrigerating compartment door 11Aa and the right refrigerating compartment door 11Ab are rotatably supported on the housing 10 by hinges 30, for example. The left refrigerating compartment door 11Aa and the right refrigerating compartment door 11Ab close the storage compartment 27 so that it can be opened and closed.
In this embodiment, the width in the width direction of the right refrigerator compartment door 11Ab is larger than the width in the width direction of the left refrigerator compartment door 11Aa.
Although not shown, in this embodiment, an operation/display area for an operation panel unit may be provided on at least one surface of the left refrigerating compartment door 11Aa and the right refrigerating compartment door 11Ab.
A detailed configuration of the right refrigerating compartment door 11Ab will be described later.

On the other hand, the vegetable compartment door 11B, the ice making compartment door 11C, the small freezer compartment door 11D, and the main freezer compartment door 11E are drawer-type doors, for example. Vegetable compartment door 11B, ice making compartment door 11C, small freezer compartment door 11D, and main freezer compartment door 11E are attached to housing 10 by rails 35 (only the left rail 35 is shown in vegetable compartment 27B and main freezer compartment 27E). supported so that it can be pulled out.

As shown in FIG. 2, the housing 10 has first and second partitions 28,29. The first and second partitions 28 and 29 are, for example, partition walls extending substantially horizontally. The first partition 28 is located between the refrigerator compartment 27A and the vegetable compartment 27B, and partitions the refrigerator compartment 27A and the vegetable compartment 27B. On the other hand, the second partition 29 is positioned between the vegetable compartment 27B and the ice making compartment 27C and the small freezer compartment 27D to separate the vegetable compartment 27B from the ice making compartment 27C and the small freezer compartment 27D. . No partition wall is provided between the ice making compartment 27C and the small freezer compartment 27D and the main freezer compartment 27E.

A plurality of shelves 12 are arranged in the refrigerator compartment 27A.
A plurality of containers 13 are arranged in refrigerating compartment container 13A (for example, a chilled compartment container) arranged in refrigerating compartment 27A, first and second vegetable compartment containers 13Ba and 13Bb arranged in vegetable compartment 27B, and ice making compartment 27C. an icemaker container (not shown), a small freezer compartment container 13D located in the small freezer compartment 27D, and first and second main freezer compartment containers 13Ea, 13Eb located in the main freezer compartment 27E.

The flow path forming component 14 is arranged inside the housing 10 . The flow path forming component 14 includes, for example, a first duct component 14A and a second duct component 14B. The first duct component 14A is provided along the rear wall 25 of the housing 10 and extends vertically. Between the first duct part 14A and the rear wall 25 of the housing 10, a first duct space S1 is formed as a passage through which cool air (air) flows. The first duct component 14A has a plurality of cold air outlets h1 opening to the refrigerator compartment 27A and a cold air return opening h2 opening to the vegetable compartment 27B. The second duct component 14B is provided along the rear wall 25 of the housing 10 and extends vertically. Between the second duct part 14B and the rear wall 25 of the housing 10, a second duct space S2 is formed as a passage through which cold air (air) flows. The second duct component 14B has a plurality of cold air outlets h3 opening to the ice making compartment 27C and the small freezer compartment 27D, and a cold air return opening h4 opening to the main freezer compartment 27E.

Cooling unit 15 includes first cooling unit 15A, second cooling unit 15B, and compressor 45 .

The first cooling unit 15A cools the air returning from the vegetable compartment 27B through the cold air return port h2, and blows it out from the plurality of cold air outlets h1 into the refrigerator compartment 27A. Cold air is thereby circulated in the refrigerator compartment 27A and the vegetable compartment 27B, and the refrigerator compartment 27A and the vegetable compartment 27B are cooled.
The second cooling unit 15B cools the air returning from the main freezer compartment 27E through the cool air return port h4, and blows it out from the cool air outlet h3 to the ice making compartment 27C, the small freezer compartment 27D, and the main freezer compartment 27E. As a result, air is circulated in ice making compartment 27C, small freezing compartment 27D and main freezing compartment 27E, and ice making compartment 27C, small freezing compartment 27D and main freezing compartment 27E are cooled.
The compressor 45 is provided, for example, in the machine room at the bottom of the refrigerator 1 . Compressor 45 compresses the refrigerant gas used to cool storage chamber 27 . The refrigerant gas compressed by the compressor 45 is sent to the first cooling unit 15A and the second cooling unit 15B via heat radiation pipes and the like.

The control board 16 controls the refrigerator 1 as a whole. For example, the control board 16 controls the operations of the first cooling unit 15A, the second cooling unit 15B, and the compressor 45 based on the detection results of temperature sensors provided in the refrigerator compartment 27A and the main freezer compartment 27E.

Next, the detailed configuration of the right refrigerating compartment door 11Ab will be described.
FIG. 3 is a perspective view showing the right refrigerating compartment door 11Ab. The right refrigerating compartment door 11Ab includes, for example, an outer shell member 50 and a gasket 55. As shown in FIG. The outer shell member 50 is formed in a box shape. The term "box-like" as used herein includes a flat box-like shape. The shell member 50 has, for example, a frame 51, a front plate 52 (see FIG. 1), and a rear member 53. As shown in FIG.
A plurality of cases 56 (door containers) whose arrangement position is movable in the vertical direction and a case 59 whose arrangement position is fixed in the vertical direction are detachably attached to the inner surface of the right refrigerating compartment door 11Ab. installed.
The number of cases 56 is not particularly limited. In the example shown in FIG. 3, the case 56 includes a first case 56A (door container), a second case 56B (door container), and a third case 56C (door container).
The case 59 is arranged close to the rib 61G at the lower end of the rear surface member 53 .

The frame body 51 is formed in a rectangular frame shape. The frame 51 includes an upper side member 51a, a lower side member 51b, a left side member 51c, and a right side member 51d. The upper side member 51a has a plate shape along the width direction and the depth direction, and forms the upper surface of the right refrigerating compartment door 11Ab. The lower side member 51b has a plate shape along the width direction and the depth direction, and forms the lower surface of the right refrigerating compartment door 11Ab. The left side member 51c has a plate shape along the vertical direction and the depth direction, and forms the left side surface of the right refrigerating compartment door 11Ab. The right side member 51d has a plate shape along the vertical direction and the depth direction, and forms the right side surface of the right refrigerating compartment door 11Ab. The frame 51 is formed by combining the upper side member 51a, the lower side member 51b, the left side member 51c, and the right side member 51d. The frame 51 is made of synthetic resin, for example.

The front panel 52 (see FIG. 1) is attached to the frame 51 and positioned at the front end of the right refrigerating compartment door 11Ab. The front plate 52 is a plate member extending in the vertical direction and the width direction, and forms the front surface of the right refrigerating compartment door 11Ab. The front plate 52 is, for example, a glass plate. However, the front plate 52 is not limited to a glass plate, and may be made of synthetic resin or other materials.
The front plate 52 may be a flat plate or a curved plate. An example in which the front plate 52 is a flat plate will be described below.

The rear surface member 53 is attached to the frame body 51 from the side opposite to the front plate 52 and positioned at the rear end portion of the right refrigerating compartment door 11Ab. The outer shape of the rear surface member 53 when viewed from the −Y direction is a rectangular shape along the frame 51 . The rear surface member 53 forms the rear surface of the right refrigerating compartment door 11Ab. The rear member 53 is made of synthetic resin, for example.
The rear surface member 53 has planar inner surface portions 53a and 53b along the front plate 52 and ribs 61 projecting rearward from the inner surface portions 53a and 53b. In the example shown in FIG. 3, the inner surface portions 53a and 53b are parallel to the front plate 52. As shown in FIG.
The rib 61 extends in the +Y direction (first direction) toward the refrigerator compartment 27A (storage compartment) from the frame 51 and the inner surface portions 53a and 53b when the right refrigerator compartment door 11Ab is closed with respect to the housing 10. Protruding.
In this specification, the term "rib" is a name for convenience of explanation, and broadly means a portion projecting rearward from the rear surface member 53, and is not limited to a specific shape or action.

The rib 61 includes, for example, an annular rib group that is one size smaller than the outer shape of the frame 51 . The term “annular” as used in this specification is not limited to the case where the entire circumference is completely continuous, and includes the case where a notch or the like is provided and a portion is interrupted.
The annular rib group in the rib 61 includes a rib 61F extending in the width direction along the upper side member 51a, a rib 61G extending in the width direction along the lower side member 51b, and a rib extending in the vertical direction along the left side member 51c. 61C, 61E, and ribs 61A, 61D extending vertically along the right side member 51d.
The rib 61 has an annular rib group and a rib 61B extending vertically between ribs 61A and 61C in the width direction.
The rib 61 protrudes relatively large rearward. For example, the amount of protrusion of the ribs 61 to the rear is half or more of the depth direction thickness of the outer shell member 50 excluding the ribs 61 . In this embodiment, the amount of protrusion of the ribs 61 is greater than the thickness of the outer shell member 50 excluding the ribs 61 in the depth direction.

Although not shown, the space between the rear surface member 53 and the front plate 52 and the inside of the convex shape of the rib 61 are filled with a foamed heat insulating material. As the heat insulating foam arranged on the back side of the rear surface member 53, the same material as the heat insulating foam 10c described above may be used.
The above-described annular rib group in the rib 61 is provided mainly to prevent cold air in the refrigerator compartment 27A (storage compartment) from escaping through the gap between the right refrigerator compartment door 11Ab and the housing 10. .

A gasket 55 is attached to the rear surface member 53 . Specifically, the rear surface member 53 has a throat 63 that is a recess that is recessed toward the inside of the right refrigerating compartment door 11Ab. For example, the throat 63 is formed in an annular shape surrounding the outer peripheral side of the rib 61 .
The gasket 55 has a gasket main body 55a and a gasket mounting portion 55b. The gasket main body 55 a is formed in an annular shape surrounding the outer peripheral side of the rib 61 . The gasket main body 55a is provided between the right refrigerating compartment door 11Ab and the housing 10 (or between the right refrigerating compartment door 11Ab and a rotating partition plate (not shown) when the right refrigerating compartment door 11Ab is closed with respect to the housing 10. ) to close the gap between right refrigerating compartment door 11Ab and housing 10 (or between right refrigerating compartment door 11Ab and rotating partition). The gasket attachment portion 55b is attached to the throat 63 by being inserted into the throat 63 provided on the rear surface member 53 of the right refrigerating compartment door 11Ab. Thereby, the gasket 55 is fixed to the rear surface member 53 .
Gasket 55 is provided to seal cold air in refrigerating compartment 27A (storage compartment) from leaking to the outside from between right refrigerating compartment door 11Ab and housing 10 when right refrigerating compartment door 11Ab is closed. is provided.

Here, the detailed configuration of the rear surface member 53 will be described.
4A and 4B are perspective views showing the rear surface member of the right refrigerating compartment door in the first embodiment. 4A and 4B differ only in the perspective direction. FIG. 5 is a cross-sectional view of the refrigerator shown in FIG. 4A along line F5-F5. FIG. 6 is an enlarged view of the F6 section of the refrigerator shown in FIG. FIG. 7 is a cross-sectional view of the refrigerator shown in FIG. 4A along line F7-F7.

As shown in FIGS. 4A and 4B, the inner surface portion 53a is formed in a range of about two-thirds from the upper end of the rear surface member 53. As shown in FIGS. The inner surface portion 53b is located slightly on the +Y direction side of the inner surface portion 53a. The inner surface portion 53b is connected to the lower end of the inner surface portion 53a via a stepped portion.

As shown in FIG. 4A, the rib 61A protrudes in the +Y direction from the +X direction end of the inner surface portion 53a. The rib 61A extends vertically from the rib 61F to the boundary between the inner surfaces 53a and 53b.
A protrusion 61a is formed on the +X direction side at the tip of the rib 61A in the projecting direction. The projecting portion 61a protrudes in the same direction as the rib 61A and is formed over the entire length of the rib 61A in the vertical direction. The projecting portion 61a forms the tip of the rib 61A in the projecting direction.
On the other hand, the tip of the rib 61F in the protruding direction is recessed in the -Y direction from the rib 61A. Therefore, when viewed from above, a U-shaped opening opening in the +Y direction is formed between the rib 61A and the rib 61B. The same is true between the rib 61C and the rib 61B.
In the example shown in FIG. 4A, the amount of protrusion of the rib 61F from the inner surface portion 53a is approximately half the amount of protrusion of the rib 61A from the inner surface portion 53a. The amount of projection of the rib 61F may be larger than this as long as it does not hinder attachment and detachment of the first case 56A and the second case 56B, which will be described later.

A flat portion 61b is formed at a position lower than the tip of the protrusion 61a in the protrusion direction (position on the -Y direction side) on the -X direction side of the protrusion 61a at the tip of the rib 61A in the protrusion direction. It is The flat portion 61b has a planar shape parallel to the inner surface portion 53a.
The planar portion 61b is formed over the entire length of the rib 61A in the vertical direction, similarly to the ridge portion 61a.

A plurality of concave groove portions 61c (concave portions) are formed in the plane portion 61b at intervals in the vertical direction. Therefore, flat portions 61b and recessed groove portions 61c are alternately formed in the vertical direction on the -X direction side of the rib portion 61a at the tip portion of the rib 61A in the projecting direction. The planar portion 61b and the concave groove portion 61c form an uneven engaging portion E as a whole. In the following description, when it is specified that it is the concave-convex engaging portion E of the rib 61A in particular, it will be referred to as the concave-convex engaging portion Ea.
The concave groove portion 61c is a concave portion in the concave-convex engaging portion E. As shown in FIG. The flat portion 61b is a relative convex portion of the concave-convex engaging portion E. As shown in FIG.

The shape of the concave groove portion 61c is not particularly limited as long as it is a shape that can be engaged with an engaging portion in a clamping mechanism, which will be described later.
In the example shown in FIG. 5, the concave groove portion 61c has a V shape opening in the +Y direction when viewed from the width direction. More specifically, as shown in FIG. 6, the concave groove portion 61c includes a lower curved portion 61d, a lower engaging portion 61e (first horizontal surface portion), a groove bottom portion 61f, and an upper engaging portion 61g (first inclined surface portion). ), and an upper curved portion 61h.
The lower curved portion 61d is curved in an arcuate shape that protrudes outward in the -Y direction from the upper end of the flat portion 61b. In the example shown in FIG. 6, the radius of curvature of the lower curved portion 61d is R1.
The lower engagement portion 61e is a planar portion extending in the -Y direction from the -Y direction end of the lower curved portion 61d. The +Y-direction end of the lower engagement portion 61e is smoothly connected to the plane portion 61b by the lower curved portion 61d.
The groove bottom portion 61f is an end face in the -Y direction of the concave groove portion 61c. The groove bottom 61f may be, for example, a curved surface that curves in an arc shape, or a flat surface whose normal direction is the depth direction. The distance from the plane portion 61b to the groove bottom portion 61f is d1.
The upper engagement portion 61g is an inclined surface extending obliquely upward in the +Y direction as it progresses in the +Z direction from the upper end of the groove bottom portion 61f. The inclination angle of the upper engaging portion 61g with respect to the lower engaging portion 61e is θ1. The size of θ1 is not particularly limited as long as it is an acute angle.
The upper curved portion 61h is curved in an arc shape that protrudes outward from the upper end of the upper engaging portion 61g toward the upper flat portion 61b. In the example shown in FIG. 6, the radius of curvature of the upper curved portion 61h is R2. In this embodiment, R2 is more preferably greater than R1.

In this embodiment, the concave-convex engaging portion Ea of the rib 61A is used to engage the ends of the first case 56A and the third case 56C in the +X direction.
For this reason, the number and arrangement intervals of the concave groove portions 61c in the concave-convex engaging portion Ea are appropriately set according to the necessary arrangement positions of the first case 56A and the third case 56C. The numbers and arrangement intervals shown in FIG. 5 and the like are examples.
In the example shown in FIG. 5, the number of concave groove portions 61c is eleven. Each concave groove portion 61c is formed at regular intervals in the vertical direction. Of these, the upper five are provided for arranging the first case 56A. The lower six are provided for arrangement of the third case 56C.

The protrusion height of the ridge portion 61a from the flat portion 61b (the recession amount of the ridge portion 61b from the tip of the ridge portion 61a) is not particularly limited. For example, the projection height of the ridge portion 61a may be an appropriate height that makes it difficult to see the concave-convex engaging portion Ea.
When the rib 61A is viewed from the -X direction, the projection 61a covers the flat surface 61b and the concave groove 61c, so that the concave-convex engaging portion Ea is hidden. As a result, the concave-convex engaging portion Ea becomes less visible, and the appearance of the right refrigerating compartment door 11Ab is improved.

As shown in FIG. 4A, a side surface S of the rib 61A on the -X direction side is provided with a rail portion 64A and a stepped portion 53c.

The rail portion 64A is a protrusion that protrudes from the side surface S in the -X direction and extends in a thin line in the vertical direction.
As shown in FIG. 5, the rail portion 64A is arranged closer to the inner surface portion 53a than the concave-convex engaging portion Ea in the depth direction. The rail portion 64A has a first rail portion 64a and a second rail portion 64b.

The outer shape of the first rail portion 64a viewed from the +X direction is a rectangle having a rear surface 64c on the +Y direction side, a front surface 64d on the -Y direction side, an upper surface 64e on the +Z direction side, and a lower surface 64f on the -Z direction side. . The configuration inside the first rail portion 64a is not particularly limited. In this embodiment, the first rail portion 64a is a tubular body that follows the above-described outer shape. A plurality of ribs 64g are provided inside the first rail portion 64a to connect the inner walls to each other in the depth direction.
The upper surface 64e is located above the uppermost arrangement position of the first case 56A, which will be described later. In the present embodiment, it is located above the uppermost concave groove portion 61c in the concave-convex engaging portion Ea.
Further, the upper surface 64e is arranged below and away from the -Z direction side surface of the rib 61F. A gap 64h is formed in the vertical direction between the rib 61F and the upper surface 64e. The size of the gap 64h is not particularly limited as long as it is a size necessary for attaching and detaching the first case 56A, which will be described later.
The lower surface 64f is positioned below the lowermost dispositionable position of the third case 56C, which will be described later. In the present embodiment, it is located below the lowermost concave groove portion 61c in the concave-convex engaging portion Ea.

The second rail portion 64b is spaced in the -Z direction from the lower surface 64f of the first rail portion 64a and arranged in series with the first rail portion 64a. The outer shape of the second rail portion 64b when viewed from the +X direction is a rectangle having a rear surface 64j on the +Y direction side, a front surface 64k on the -Y direction side, an upper surface 64m on the +Z direction side, and a lower surface 64n on the -Z direction side. .
The rear surface 64j has the same position in the depth direction as the rear surface 64c, and the front surface 64k has the same position in the depth direction as the front surface 64d.
The bottom surface 64n forms the bottom surface of the rail portion 64A. In the example shown in FIG. 5, the lower surface 64n in the vertical direction is substantially the same position as the lower end of the plane portion 61b.
The upper surface 64m is separated from the lower surface 64f in the vertical direction. A gap 64i is formed between the upper surface 64m and the rear surface 64c. The size of the gap 64i is such that a locking projection 57 of the clamping mechanism 60, which will be described later, can pass through in the depth direction.
The position of the gap 64i in the vertical direction is set according to the position at which the third case 56C, which will be described later, is attached and detached. In the case of this embodiment, since the third case 56C can be attached and detached below its arrangement position, the gap 64i is located near the lower end of the rail portion 64A. Therefore, in the example shown in FIG. 5, the second rail portion 64b is significantly shorter than the first rail portion 64a. For example, the vertical length of the second rail portion 64b may be about half the length of the locking projection 57 of the clamping mechanism 60, which will be described later.

As shown in FIG. 4A, the step portion 53c protrudes in the −X direction from the side surface S of the rail portion 64A between the rail portion 64A and the inner surface portion 53a. The projection height of the step portion 53c is not particularly limited, but it is more preferable not to exceed the projection height of the rail portion 64A. In the example shown in FIG. 4A, the step portion 53c protrudes to the same position as the rail portion 64A.
As shown in FIG. 5, the stepped portion 53c extends parallel to the front surface 64d while being separated from the front surface 64d in the -Y direction. The lower end of the stepped portion 53c extends to a position facing the gap 64i in the depth direction. The upper end of the stepped portion 53c is connected to the lower surface of the rib 61F.

Between the front surface 64d of the rail portion 64A and the stepped portion 53c, there is a first stopper that crosses the gap between the front surface 64d of the rail portion 64A and the stepped portion 53c and protrudes in the −X direction from the side surface S of the rib 61A. 53d is provided.
The first stopper 53d is provided to prevent the dropping of the first case 56A, which will be described later. The position of the first stopper 53d in the vertical direction defines the lowest movable position of the first case 56A. The lowest position of the first case 56A can be appropriately set as required. However, the first stopper 53d also defines the movable uppermost position of the third case 56C, which will be described later.
In the example shown in FIG. 5, the first stopper 53d is provided substantially in the center of the front surface 64d in the vertical direction. Therefore, the first case 56A can move vertically within the upper half of the first rail portion 64a, and the third case 56C can move vertically within the lower half of the second rail portion 64b. .

A front surface 64k of the second rail portion 64b is provided with a second stopper 53e that extends toward the boundary portion between the inner surface portions 53a and 53b and protrudes in the -X direction from the side surface S of the rib 61A.
The second stopper 53e is provided to prevent the third case 56C, which will be described later, from falling. The length of the second stopper 53e in the depth direction is not particularly limited as long as it can prevent a third case 56C, which will be described later, from falling. In the example shown in FIG. 5, the length of the second stopper 53e in the depth direction is about the same as the gap between the front surface 64d of the rail portion 64A and the stepped portion 53c.
The position of the second stopper 53e in the vertical direction defines the lowest movable position of the third case 56C. The lowest position of the third case 56C can be appropriately set as required. In the example shown in FIG. 5, the second stopper 53e extends in the -Y direction from the intersection of the front surface 64k and the bottom surface 64n.

As shown in FIG. 4A, the rib 61D extends from the lower end of the rib 61A to the +X direction end of the rib 61G. The inner (−X direction side) side surface of the rib 61D is positioned closer to the +X direction than the inner side surface S of the rib 61A. Therefore, the rib 61D is thinner than the rib 61A.
A locking guide projection 53f and a locking projection 65 protrude in the -X direction from the inner side surface of the rib 61D. The shape of the locking guide projection 53f and the locking projection 65 is not particularly limited as long as the case 59 can be detachably locked.
The rib 61G in this embodiment includes a first plate-shaped portion 61Ga extending in the +Y direction from the lower end of the inner surface portion 53b, and a second plate-shaped portion 61Gb extending further in the +Y direction from the first plate-shaped portion 61Ga. have. However, the first plate-shaped portion 61Ga and the second plate-shaped portion 61Gb have upper surfaces that incline toward the -Z direction as they progress in the +Y direction.
The locking guide projection 53f extends in the +Z direction over the entire depth direction from the upper surface of the +X direction edge of the first plate-shaped portion 61Ga.
The locking projection 65 extends parallel to the locking guide projection 53f above the second plate-shaped portion 61Gb, away from the +Y direction end of the locking guide projection 53f.
Each tip surface of the ribs 61D and 61G in the protruding direction is formed at the same position as the tip of the rib 61A.

As shown in FIG. 4B, the +X direction side surface of the rib 61A is provided with an illumination unit 62 that illuminates the interior of the refrigerator compartment 27A when the right refrigerator compartment door 11Ab is opened.
For example, the lighting section 62 has a light diffusion plate provided on the side surface of the rib 61A in the +X direction and a light source provided inside the rib 61A.

As shown in FIGS. 4B and 7, the ribs 61C and 61E and the rail portion 64C are aligned with the ribs 61A and 61D and the rail portion 64A, respectively, with respect to a plane normal to the width direction between the ribs 61A and 61C. It has a symmetrical shape and arrangement. However, the illumination part 62 is not provided in the rib 61C. The side surface of the rib 61C is continuous with the surface of the portion corresponding to the illumination portion 62, and the interior is similarly filled with a non-illustrated foamed heat insulating material.
Therefore, the configuration of the ribs 61C, 61E and the rail portion 64C can be easily understood by reversing the +X direction and the -X direction in the above description, and detailed description thereof will be omitted. For example, the rib 61C has an uneven engaging portion E similar to the rib 61A on the +X direction side of the ridge portion 61a. In the following description, when it is specified that it is the uneven engagement portion E of the rib 61C, it will be referred to as an uneven engagement portion Ec.
The same applies to the stepped portion 53c, the first stopper 53d, and the second stopper 53e of the rib 61C, and the locking projection 65 and the locking guide projection 53f of the rib 61E.

As shown in FIGS. 4A and 4B, the rib 61B protrudes in the +Y direction from the inner surface portion 53a between the ribs 61A and 61C. The rib 61B extends vertically from the rib 61F to substantially the center of the inner surface portion 53a. For example, in the example shown in FIG. 7, the rib 61B extends to the center of the concave-convex engaging portion Ec of the rib 61C (the position of the sixth concave groove portion 61c from the upper side) when viewed from the -X direction.
The rib 61B has a side surface Sm (see FIG. 4A) on the −X direction side and a side surface Sp (see FIG. 4B) on the +X direction side. The side surface Sm faces the side surface S of the rib 61C in the width direction. The side surface Sp faces the side surface S of the rib 61A in the width direction.
At the tip of the rib 61B in the protruding direction, a concave-convex engaging portion E is formed in the range of the length of the rib 61B in the vertical direction.
A flat portion 61b of the rib 61B forms a tip surface in the projecting direction of the rib 61B. The concave groove portion 61c of the rib 61B is formed in the same manner as the concave groove portion 61c of the upper half portion of the concave-convex engaging portion Ea. For example, in the example shown in FIG. 7, the concave groove portion 61c of the rib 61B has the same shape and arrangement as the upper five pieces of the concave-convex engaging portion Ea.
In this way, the concave-convex engaging portion E in the rib 61B has fewer groove portions 61c than the concave-convex engaging portion Ea. In the following description, when it is specified that it is the uneven engagement portion E of the rib 61B, it will be referred to as an uneven engagement portion Eb.

The widthwise thickness of the rib 61B is at least about twice the width of the concave-convex engaging portion Ea. The concave groove portion 61c in the concave-convex engaging portion Ec may not pass through the rib 61B in the thickness direction (lateral width direction), but in this embodiment, it passes through.
When the concave groove portion 61c does not pass through the rib 61B in the thickness direction, the concave groove portion 61c is formed from the side surfaces Sm and Sp of the rib 61B toward the inner side of the rib 61B.

As shown in FIG. 4A, the side surface Sm is provided with a rail portion 64Bc and a stepped portion 53g.
The rail portion 64Bc is a protrusion protruding in the +X direction, similar to the first rail portion 64a of the rib 61A, except that it is provided on the side surface Sm and that it is short in the vertical direction. .
That is, the rail portion 64Bc has an upper surface 64e similar to the first rail portion 64a, a rear surface 64c and a front surface 64d shorter in the vertical direction than the first rail portion 64a, and a lower surface 64p instead of the lower surface 64f. .
The lower surface 64p is formed at the same position as the upper end surface of the first stopper 53d when viewed from the -Y direction.
The stepped portion 53g is formed in the same manner as the stepped portion 53c except that it is provided on the side surface Sm and that it is formed within the vertical length range of the rib 61B.

As shown in FIGS. 4B and 7, the side surface Sp is provided with a rail portion 64Ba and a stepped portion 53g. The rail portion 64Ba and the stepped portion 53g have shapes and arrangements that are symmetrical to the rail portion 64Bc and the stepped portion 53g on the side surface Sm, respectively, with respect to a plane normal to the width direction between the side surfaces Sp and Sm. there is For this reason, in the above description, for example, if the +X direction and the -X direction are reversed, it will be easily understood, and detailed description will be omitted.

As described above, in the rear surface member 53, the rib 61B faces the rib 61A in the lateral width direction (second direction) intersecting the projecting direction (+Y direction, first direction) of the rib 61A (first wall portion). It is the second wall portion. Concave-convex engagement portions E (concave-convex engagement portions Ea, Eb) are provided at the ends of the ribs 61A, 61B in the first direction, respectively. The ribs 61A and 61B are provided with rail portions 64 (rail portions 64A and 64Ba) projecting from the side surfaces S and Sp facing each other and extending in the vertical direction.
Similarly, the ribs 61C and 61B correspond to the first wall portion and the second wall portion, respectively, and are provided with concave-convex engaging portions E (concave-convex engaging portions Ec and Eb) at the ends in the first direction. It is Further, the ribs 61C and 61B are provided with rail portions 64 (rail portions 64C and 64Bc) projecting from the side surfaces S and Sm facing each other and extending in the vertical direction.
Similarly, the ribs 61A and 61C correspond to the first wall portion and the second wall portion, respectively, and are provided with the concave-convex engaging portions E (concave-convex engaging portions Ea and Ec) at the ends in the first direction. It is Further, the ribs 61A and 61C are provided with rail portions 64 (rail portions 64A and 64C) projecting from the side surfaces S and S facing each other and extending in the vertical direction.
In addition, the correspondence between the first wall portion and the second wall portion in the wall portions facing each other may be reversed to the above.

Next, detailed configurations of the plurality of cases 56 will be described.
As shown in FIG. 3, each case 56 can move vertically between the first wall portion and the second wall portion along the rail portion. Each case 56 includes a case main body 56a having a length (width) in the horizontal width direction that fits in the gap between the first wall portion and the second wall portion.
The case bodies 56a of the first case 56A, the second case 56B, and the third case 56C may be referred to as case bodies 56aA, 56aB, and 56aC, respectively.
The first case 56A is arranged between the ribs 61A, 61B. The second case 56B is
It is arranged between ribs 61C and 61B. The third case 56C is arranged between the ribs 61A, 61B.

A configuration common to each case 56 will be described with an example of the first case 56A.
Hereinafter, unless otherwise specified, the positional relationship of each part will be described based on the direction of fixing to the refrigerator 1 described above. However, the first case 56A is attached and detached while the right refrigerating compartment door 11Ab is open. The opening angle of the right refrigerating compartment door 11Ab is arbitrary within the opening limit.
For this reason, when the user opens the right refrigerating compartment door 11Ab and faces the inner surface of the right refrigerating compartment door 11Ab (hereinafter referred to as facing), the right, left, front, and rear as seen from the user are referred to in this specification. Different from left to right and front to back as defined. Below, the positional relationship when facing straight may be supplemented as necessary.
FIG. 8 is a perspective view showing an example of the door container in the first embodiment. 9 is an exploded perspective view of the door container shown in FIG. 8. FIG. 10 is a cross-sectional view of the door container shown in FIG. 8 along line F10-F10.

As shown in FIG. 8, the first case 56A has a case main body 56aA and a clamping mechanism 60. As shown in FIG.

The case main body 56aA is formed in a bowl shape with an open top. The outer shape of the case main body 56aA is substantially rectangular parallelepiped. Here, the term “substantially rectangular parallelepiped shape” refers to a shape similar to a rectangular parallelepiped, in which various shapes such as roundness, curvature, bends, steps, and unevenness are added to any of the corners, ridges, and surfaces of the rectangular parallelepiped. Including shape. The case main body 56aA may have a through hole, a notch, or the like that penetrates in the thickness direction. However, in the following description, an example in which the first case 56A does not have a through hole, a notch, or the like penetrating in the thickness direction will be described.
The case main body 56aA has a bottom portion 56f, a first wall portion 56b, a second wall portion 56c, a first side wall portion 56d, and a second side wall portion 56e.
The shape of the bottom portion 56f when viewed from above (when viewed in the −Z direction) is substantially rectangular with peripheral edges extending in the width direction and the depth direction.
The first wall portion 56b extends in the +Z direction from the +Y-direction peripheral edge of the bottom portion 56f.
The second wall portion 56c extends in the +Z direction from the −Y direction peripheral edge of the bottom portion 56f. The second wall portion 56c is a wall portion facing the inner surface portion 53a when arranged inside the refrigerator 1 . For example, the second wall portion 56c is formed of a plane substantially parallel to the inner surface portion 53a.
The first side wall portion 56d extends in the +Z direction from the +X direction peripheral edge of the bottom portion 56f. The first side wall portion 56d is positioned on the left hand side when viewed from the user when facing the user.
The second side wall portion 56e extends in the +Z direction from the −X direction peripheral edge of the bottom portion 56f. The second side wall portion 56e is positioned on the right hand side when viewed from the user when facing the user.

The holding mechanism 60 is composed of a holding mechanism 60R provided on the second side wall portion 56e and a holding mechanism 60L provided on the first side wall portion 56d.
The clamping mechanism 60R has a locking protrusion 57R and a locking portion 58R. The clamping mechanism 60L has a locking protrusion 57L and a locking portion 58L.
The lock portions 58R and 58L are located on the right and left sides of the user, respectively, when facing the user.
Below, the subscripts R and L may be omitted as appropriate if there is no risk of misunderstanding. For example, when one of the locking projections 57R and 57L is indicated, it may simply be referred to as the locking projection 57, or both the locking projections 57R and 57L may be collectively referred to as each locking projection 57. .

The locking projection 57R protrudes in the -X direction from the second side wall portion 56e at the -Y direction end of the second side wall portion 56e. The shape of the locking projection 57R viewed from the +X direction is long in the vertical direction as a whole. The upper end of the locking projection 57R is located near the upper end of the second side wall portion 56e. The lower end of the locking projection 57R is located substantially in the vertical center of the second side wall portion 56e.
The −Y direction outer surface of the locking projection 57R is formed of a plane portion 57d formed of a plane facing the −Y direction and extending in the vertical direction. In the example shown in FIG. 8, the plane portion 57d is parallel to the second wall portion 56c. The distance in the depth direction from the flat portion 57d to the outer surface of the second wall portion 56c is shorter than the distance in the depth direction from the inner surface portion 53a to the stepped portions 53c and 53g.
The outer surface of the locking projection 57R in the +Y direction includes an upper protrusion 57a (first protrusion) and a lower protrusion 57b (second protrusion) that protrude in the -Y direction from both ends in the vertical direction. be A concave portion 57c recessed in the -Y direction is formed between the upper convex portion 57a and the lower convex portion 57b.
The ends of the upper convex portion 57a and the lower convex portion 57b in the -Y direction are located on the same plane parallel to the plane portion 57d.
The width of the locking projection 57R in the depth direction is narrower than the gap between the rail portion 64Ba and the stepped portion 53g.

The locking projection 57L has a shape and arrangement that are symmetrical to the locking projection 57L with respect to a plane normal to the lateral width direction between the second side wall portion 56e and the first side wall portion 56d. For this reason, the locking projection 57L has a planar portion 57d, an upper convex portion 57a, a lower convex portion 57b, and a concave portion 57c similar to the locking projection 57R, except that the locking projection 57L projects in the -X direction from the first side wall portion 56d. have
The width of the locking projection 57L in the depth direction is narrower than the gap between the rail portion 64A and the stepped portion 53c.

Regarding the widthwise dimension of the first case 56A, the distance from the outer surface of the first side wall portion 56d to the outer surface of the second side wall portion 56e is shorter than the distance between the tip surfaces of the rail portions 64A and 64Ba in the projecting directions. . Furthermore, the distance between the tip surfaces of the locking protrusions 57L and 57R in the protruding direction is shorter than the gap between the side surface S of the rib 61A and the side surface Sp of the rib 61B.
Therefore, the first case 56A is vertically movable between the side surface S of the rib 61A and the side surface Sp of the rib 61B. At that time, the locking projection 57L can move vertically through the gap between the rail portion 64A and the stepped portion 53g. The locking projection 57R can move vertically through the gap between the rail portion 64Ba and the stepped portion 53g.

The lock portion 58R is provided at the +Y direction end of the second side wall portion 56e.
As shown in FIG. 9, the locking portion 58R has a holding portion 58a, a slide member 71 (engagement portion), an elastic member 72 (pressing member, spring), a locking holder 73 (pressing member), and a cover .
The locking portion 58L has a shape and arrangement that are symmetrical to the locking portion 58R with respect to a plane whose normal direction is the width direction between the second side wall portion 56e and the first side wall portion 56d. Therefore, the shape and arrangement of the holding portion 58a, the slide member 71, the elastic member 72, the locking holder 73, and the cover 70 of the lock portion 58L are the +X direction and the −X direction in the explanation of the configuration of the lock portion 58R. It can be easily understood by rereading it the other way around. In particular, the locking portions 58R and 58L have a common cross-sectional shape on a plane whose normal direction is the width direction.
The configuration of the lock portion 58R will be described below unless otherwise specified. However, for parts that cannot be seen on the drawing, the illustration of the corresponding part of the lock part 58L may be referred to.

The holding portion 58a has a first guide plate 58b, a second guide plate 58c, and a locking plate 58d.
The first guide plate 58b is a flat plate that protrudes in the −X direction from the vicinity of the upper end of the second side wall portion 56e and elongates in the depth direction. The planar shape of the first guide plate 58b has a constant width in the +Y direction from the intermediate portion in the depth direction, and similarly, the width in the +Y direction gradually decreases as it progresses in the +Y direction. The length of the first guide plate 58b in the depth direction is not particularly limited as long as it is spaced apart from the locking projection 57R, but in the example shown in FIG. be.

The second guide plate 58c is a flat plate projecting in the -X direction at a position spaced from the first guide plate 58b below the first guide plate 58b. The outer shape of the second guide plate 58c in plan view is the same as that of the first guide plate 58b. The second guide plate 58c is arranged at a position overlapping the first guide plate 58b when viewed from the -Z direction.
The distance between the second guide plate 58c and the first guide plate 58b in the vertical direction is large enough to hold a slide member 71, which will be described later, slidably in the depth direction.
A cutout portion 58f having a C shape in plan view is formed in a portion of the second guide plate 58c closer to the -Y direction so that an operation lever 71B of the slide member 71, which will be described later, can be inserted in the width direction and the depth direction.

At least one locking hole 58e is formed through each of the first guide plate 58b and the second guide plate 58c in the protruding direction (-X direction) in the base end portion thereof in the plate thickness direction. A plurality of locking holes 58e are used to lock a cover 70, which will be described later.
For example, in the example shown in FIG. 9, two locking holes 58e are formed spaced apart in the depth direction in the first guide plate 58b. Although not shown in FIG. 9, in the second guide plate 58c, a locking hole 58e is formed at a position facing the locking hole 58e on the +Y direction side in the first guide plate 58b.

The locking plate 58d is a flat plate whose normal direction is the depth direction. The locking plate 58d protrudes in the -X direction from a position closer to the +Y direction than the notch 58f between the first guide plate 58b and the second guide plate 58c. The locking plate 58d connects the first guide plate 58b and the second guide plate 58c to each other in the vertical direction.
A locking groove 58g for locking a locking holder 73, which will be described later, in the vertical direction and the +X direction is formed at the tip of the locking plate 58d in the protruding direction.

The slide member 71 has a slider 71A and an operating lever 71B.
The slider 71A is accommodated in the gap between the first guide plate 58b and the second guide plate 58c and is slidable in the depth direction. A protruding engaging portion 71a that can engage with the concave groove portion 61c in the vertical direction is provided at the tip portion of the slider 71A in the -Y direction.
The operating lever 71B is a rod-shaped member extending in the -Z direction from the intermediate portion in the depth direction of the lower surface of the slider 71A. The operating lever 71B is inserted through the notch 58f and protrudes downward from the second guide plate 58c.
A detailed configuration of the slide member 71 will be described later.

The elastic member 72 is a member that biases the slider 71A in the -Y direction. The configuration of the elastic member 72 is not particularly limited as long as it can urge the slider 71A in the -Y direction. For example, as the elastic member 72, an appropriate elastic member, a spring, or the like that can be biased in the -Y direction is used. For example, the elastic member 72 may be configured to generate an elastic restoring force in the -Y direction when compressed in the +Y direction. In the example shown in FIG. 9, a compression coil spring, which is a type of spring, is used as the elastic member 72 .

The locking holder 73 holds the base end portion 72b, which is the end portion of the elastic member 72 in the +Y direction.
A cross-sectional configuration of the locking holder 73 will be described based on a cross-sectional view of the locking portion 58L shown in FIG.
The locking holder 73 has a first locking plate 73b, a second locking plate 73c, a locking shaft 73d, and a tubular portion 73a.
The first locking plate 73b and the second locking plate 73c are flat plates that are arranged parallel to each other with a gap that allows insertion of the locking plate 58d. The first locking plate 73b and the second locking plate 73c are connected to each other by a locking shaft 73d provided at the center of each.
The locking shaft 73d has an outer diameter slightly smaller than the groove width of the locking groove 58g.
As a result, the locking holder 73 is locked with the locking shaft 73d inserted into the locking groove 58g and the locking plate 58d sandwiched between the first locking plate 73b and the second locking plate 73c. It is locked to the plate 58d.

The cylindrical portion 73a accommodates the proximal end portion 72b of the elastic member 72 therein. As for the shape of the cylindrical portion 73a, an appropriate shape corresponding to the shape of the elastic member 72 to be accommodated can be used. In the example shown in FIG. 9, the cylindrical portion 73a is cylindrical having a circular hole along the outer shape of the elastic member 72, corresponding to the fact that the elastic member 72 is a compression coil spring having a cylindrical outer shape.
A proximal end portion 72b of the elastic member 72 is fixed at a predetermined position inside the cylindrical portion 73a.

As shown in the perspective view of the lock portion 58L and the exploded perspective view of the lock portion 58R in FIG. 9, the cover 70 covers the slider 71A, the elastic member 72, the locking holder 73, and the holding portion 58a from the outside.
The cover 70 connects the upper plate portion 70a that covers the first guide plate 58b from above, the lower plate portion 70b that covers the second guide plate 58c from below, and the upper plate portion 70a and the lower plate portion 70b in the vertical direction. and a side plate portion 70c.

The side plate portion 70c is formed in a curved plate shape that covers from the outside the ends of the first guide plate 58b and the second guide plate 58c in the projecting direction and the ends in the +Y direction. Specifically, the side plate portion 70c has a flat plate portion 70d covering the -Y direction side of the first guide plate 58b and the second guide plate 58c, and a convex curved portion 70e similarly covering the +Y direction side.
For this reason, each locking portion 58 protrudes outward in the width direction from both side surfaces in the width direction of the first case 56A, but the amount of protrusion gradually decreases toward the ends in the +Y direction.
The shape of the convex curved portion 70e is such that the locking portion 58R of the second case 56B and the third case 56C does not interfere with the left refrigerating compartment door 11Aa when opening and closing the right refrigerating compartment door 11Ab. For example, the convex curved portion 70e has a curved shape that fits inside (hinge 30 side) of the rotational locus drawn by the left side member 51c with the hinge 30 as the center.

As shown in the cover 70 of the lock portion 58L in FIG. 9, the lower plate portion 70b is formed with a notch portion 70f at a position overlapping the notch portion 58f from below.
The notch portion 70f is formed in a shape that allows the operation lever 71B to be inserted in the width direction and the depth direction.
In the cover 70, a substantially rectangular opening surrounded by the upper plate portion 70a, the side plate portion 70c, and the lower plate portion 70b is formed at the end portion in the -Y direction. This opening has a size that allows the slider 71A to advance and retreat in the depth direction.
An upper surface of the lower plate portion 70b is provided with an engaging projection 70g that engages with the locking hole 58e in the second guide plate 58c. Although not shown in FIG. 9, engaging projections 70g are also provided on the lower surface of the upper plate portion 70a at portions that engage with the locking holes 58e of the first guide plate 58b.
The cover 70 is fixed to the holding portion 58a while covering the holding portion 58a from the outside in the vertical direction and the outside in the width direction by engaging the engaging protrusions 70g with the locking holes 58e. .

As shown in FIG. 8, when the cover 70 is attached, the amount of protrusion of the lock portion 58L in the +X direction from the first side wall portion 56d and the amount of protrusion of the lock portion 58R in the -X direction from the second side wall portion 56e are shown. and are both W. The size of W is larger than both the width of the flat portion 61b of the rib 61A and half the width of the flat portion 61b of the rib 61B. Furthermore, the distance between the outer surfaces of the side plate portions 70c is shorter than the distance from the inner surface of the ridge portion 61a to the central portion of the flat portion 61b of the rib 61B.
Therefore, the first case 56A can be accommodated in a range from the inner surface of the ridge portion 61a to the central portion of the flat portion 61b of the rib 61B in the width direction.

Next, the detailed configuration of the slide member 71 and the internal configuration of the lock portion 58 will be described based on the cross-sectional view of the lock portion 58L shown in FIG. FIG. 10 shows the position of the slide member 71 in the locked state in which the convex engaging portion 71a is engaged with the concave groove portion 61c.
The upper and lower ends of the slider 71A have an upper slide portion 71g and a lower slide portion 71h extending parallel to the lower surface of the first guide plate 58b and the upper surface of the second guide plate 58c, respectively. The vertical distance between the upper slide portion 71g and the lower slide portion 71h is slightly smaller than the distance between the first guide plate 58b and the second guide plate 58c. Therefore, the slider 71A can slide in the depth direction along at least one of the lower surface of the first guide plate 58b and the upper surface of the second guide plate 58c.

The lengths of the upper slide portion 71g and the lower slide portion 71h in the depth direction are substantially equal to the lengths from the locking plate 58d to the respective ends of the first guide plate 58b and the second guide plate 58c in the -Y direction. .
The −Y direction end faces of the upper slide portion 71g and the lower slide portion 71h are positioned on the same plane with the depth direction as the normal direction.
The tip surface of the upper slide portion 71g constitutes an upper engaging portion 71e (abutting portion) that engages the flat portion 61b in the locked state from the -Y direction.
A tip surface of the lower slide portion 71h constitutes a lower engagement portion 71f (abutting portion) that engages the flat portion 61b in the locked state from the -Y direction.
In this embodiment, the convex engagement portion 71a is an engagement portion that engages with the uneven engagement portion E in the vertical direction, and the upper locking portion 71e and the lower locking portion 71f engage with the uneven engagement portion E. It is an engaging portion that engages in the -Y direction.

The convex engaging portion 71a protrudes in the -Y direction from the upper engaging portion 71e and the lower engaging portion 71f. In the example shown in FIG. 10, the convex engaging portion 71a protrudes from the center of the slider 71A in the height direction.
The shape of the convex engaging portion 71a is not particularly limited as long as it can be engaged with at least one of the lower engaging portion 61e and the upper sliding portion 71g of the concave groove portion 61c in the vertical direction.
In this embodiment, the convex engaging portion 71a narrows in the -Y direction when viewed in the width direction, corresponding to the fact that the concave groove portion 61c is V-shaped and opens in the +Y direction when viewed in the width direction. It is V-shaped.
For example, the convex engaging portion 71a has a lower engaging portion 71b (second horizontal surface portion), a tip surface 71d, and an upper engaging portion 71c (second inclined surface portion).
The lower engagement portion 71b is a flat portion extending in the horizontal direction.
The tip surface 71d is bent in the +Z direction from the -Y direction end of the lower engaging portion 71b. The distance between the upper engaging portion 71e and the lower engaging portion 71f and the tip surface 71d (the amount of projection of the convex engaging portion 71a) is d2. In this embodiment, the size of d2 is smaller than the depth d1 of the recessed groove portion 61c.
The upper engaging portion 71c is an inclined surface extending obliquely upward toward the +Y direction as it progresses in the +Z direction from the upper end portion of the distal end surface 71d. The inclination angle of the upper engaging portion 71c with respect to the lower engaging portion 71b is θ2. The size of θ2 is not particularly limited as long as it is an acute angle. θ2 is more preferably approximately the same as θ1.

At the center of the slider 71A, a hole 71i opening in the +Y direction is formed on the side opposite to the convex engaging portion 71a (the back side of the convex engaging portion 71a).
Inside the slider 71A, the +Y direction side of the opening of the hole portion 71i is a space sandwiched between the upper slide portion 71g and the lower slide portion 71h. This space has a width that allows the tubular portion 73a of the locking holder 73 to move relatively forward and backward in the depth direction.

The hole portion 71i has a size capable of accommodating the elastic member 72 therein. In this embodiment, it is a circular hole having an inner diameter slightly larger than the outer diameter of the elastic member 72 . The hole portion 71i extends from the back side of the convex engaging portion 71a to the central portion of the slider 71A in the depth direction.
In this embodiment, the outer diameter of the cylindrical portion 73a is larger than the inner diameter of the hole portion 71i, so the cylindrical portion 73a cannot be inserted into the hole portion 71i. Therefore, the sum of the depth of the hole portion 71i and the depth of the cylindrical portion 73a defines the minimum length of the elastic member 72 that can be compressed. Therefore, when it is necessary to compress the elastic member 72 to the length L0, the sum of the depth of the hole portion 71i and the depth of the cylindrical portion 73a must be L1, which is smaller than L0. It is more preferable that the depth of the hole portion 71i and the depth of the cylindrical portion 73a are both approximately half of L1.
In the example shown in FIG. 10, the depth of the hole portion 71i and the depth of the cylinder portion 73a are each about one-third to about two-fifths of the length of the elastic member 72 in the locked state. Thus, when the operating lever 71B is pulled in the +Y direction and the elastic member 72 is most compressed, the elastic member 72 is substantially covered with the hole portion 71i and the cylindrical portion 73a.

The operating lever 71B has a connecting shaft 71k and a lever body 71j.
The connecting shaft 71k extends in the -Z direction from a substantially central portion in the depth direction of the lower slide portion 71h. The lower end of the connecting shaft 71k protrudes downward from the lower plate portion 70b.
The lever main body 71j is shaped like a rod extending downward from the lower end of the connecting shaft 71k.
A front surface portion 71m, which is the surface of the lever main body 71j in the -Y direction, extends linearly downward and then gradually curves in the -Y direction at the lower end. Therefore, the front portion 71m has a J shape when viewed from the -X direction.
On the other hand, the rear surface portion 71n, which is the surface of the lever body 71j in the +Y direction, is a flat surface extending linearly downward.

As described above, the slide member 71 is T-shaped when viewed from the -X direction.
The length of the lever main body 71j in the operation lever 71B is sufficient as long as the finger F can be put thereon.
The longer the slider 71A, the more stable the forward/backward movement of the slider 71A, and thus the longer the slider 71A, the more preferable.

As shown in FIG. 3, the second case 56B has the same configuration as the first case 56A, except that a case body 56aB is provided instead of the case body 56aA. The case main body 56aB may be the same member as the case main body 56aA, or may be a member different in size, shape, etc. from the case main body 56aA.
The second case 56B can be accommodated in a widthwise range from the inner surface of the rib 61C to the center of the flat portion 61b of the rib 61B.
The third case 56C has the same configuration as the first case 56A, except that a case body 56aC is provided instead of the case body 56aA. The case body 56aC has a width in the width direction at least at the +Y direction end portion which is narrower than the distance in the width direction between the rail portions 64A and 64C. The third case 56C includes a first wall portion 56bC and a second wall portion 56cC having shorter widthwise lengths than the first wall portion 56b and the second wall portion 56c of the first case 56A.
In the example shown in FIG. 3, an egg tray 56h is arranged inside the third case 56C.

Next, the engagement structure between the first case 56A and the rear surface member 53 will be described. However, since the engagement structure of the rib 61A and the rail portion 64A is similar to the engagement structure of the rib 61B and the rail portion 64Ba, the engagement structure of the rib 61A and the rail portion 64A will be mainly described.
FIG. 11 is a cross-sectional view showing a locked state of the door container in the refrigerator of the first embodiment. FIG. 12 is a cross-sectional view showing an unlocked state of the door container in the refrigerator of the first embodiment.

As shown in FIG. 11, in the first case 56A in the locked state, the locking projection 57L is inserted into the space between the stepped portion 53c and the front surface 64d of the rail portion 64. As shown in FIG. The upper convex portion 57a and the lower convex portion 57b are in contact with the front surface 64d. A gap is formed between the flat portion 57d and the stepped portion 53c.
The slider 71A is biased in the -Y direction by an elastic member 72. As shown in FIG. As a result, the slider 71A advances in the -Y direction while being guided by the first guide plate 58b and the second guide plate 58c. The slider 71A protrudes in the -Y direction from the opening of the cover 70 in the -Y direction.
The convex engaging portion 71a is inserted into one of the concave groove portions 61c of the concave-convex engaging portion Ea. The upper engaging portion 71e and the lower engaging portion 71f press the planar portion 61b adjacent to the concave groove portion 61c while being urged by the elastic member 72, respectively. Thereby, the longitudinal direction of the slider 71A is perpendicular to the plane portion 61b.
Since only the protruding portions of the convex engaging portion 71a from the upper engaging portion 71e and the lower engaging portion 71f are inserted into the concave groove portion 61c, a gap is formed between the tip surface 71d and the groove bottom portion 61f. It is
Since gravity acts downward on the first case 56A, the lower engaging portion 71b is engaged with the flat portion 61b. At this time, a gap is formed between the upper engaging portion 71c and the upper engaging portion 61g. That is, the convex engaging portion 71a is engaged with the concave-convex engaging portion Ea in the -Z direction.
However, when an external force acts to push the first case 56A upward against its own weight, depending on the magnitude of the external force, the slider 71A may move upward along the flat portion 61b and the upper engaging portion 71c may move upward. It engages with the slide portion 71g.

Thus, the elastic member 72 is provided so as to press the uneven engagement portion Ea with the rail portion 64A and the uneven engagement portion Ea interposed between the convex engagement portion 71a and the locking projection 57L. there is
The pressing force f of the elastic member 72 is transmitted to the flat portion 61b by the upper engaging portion 71e and the lower engaging portion 71f which are spaced apart in the vertical direction.
Since the reaction force of this pressing force pulls the first case 56A in the +Y direction, the upper convex portion 57a and the lower convex portion 57b each press the front surface 64d in the +Y direction with a force f having the same magnitude as the pressing force. do.
Although the pressing positions in a plan view are not exactly on the same straight line, they are near the side surface S of the rib 61A and substantially face each other in the depth direction along the side surface S. Therefore, the rotational moment in the horizontal plane caused by the deviation of the pressing position in the width direction can be ignored.
In the present embodiment, as shown in FIG. 11, the upper engaging portion 71e and the lower engaging portion 71f have a positional relationship of facing each other in the depth direction between the upper convex portion 57a and the lower convex portion 57b in the vertical direction. . As a result, no rotational moment is generated in the vertical plane due to deviation of the application point of each pressing force, so that the gripping state in the depth direction is stabilized.
The rear side pressing area P1 between the pressing position of the upper engaging portion 71e and the pressing position of the lower engaging portion 71f in the vertical direction is defined by the pressing position of the upper projecting portion 57a in the vertical direction and the pressing position of the lower projecting portion 57b. It is not particularly limited as long as it overlaps with the front side pressing region P2 between the positions when viewed from the depth direction. However, as in the example shown in FIG. 11, the rear pressure area P1 is preferably within the range of the front pressure area P2.

According to the present embodiment, the pressing force f of the elastic member 72 in the -Y direction is applied by the upper locking portion 71e and the lower locking portion 71f, which are spaced apart wider than the vertical width of the convex engaging portion 71a. It is transmitted to the rib 61A. Therefore, when viewed in the -X direction, the rail portion 64 and the concave-convex engaging portion E are formed by two points, the upper convex portion 57a and the lower convex portion 57b, and the upper locking portion 71e and the lower locking portion 71f. It is sandwiched by a total of four points, ie, 2 points.
For this reason, compared to the case where the pressing force to the rail portion 64 and the concave-convex engaging portion E acts at a total of two points, one point each, or a total of three points, one point and two points, the first case 56A becomes difficult to rotate within a vertical plane intersecting the width direction. As a result, the first case 56A is less likely to rattle.

In such a locked state, the vertical position of the first case 56A is fixed according to the position of the recessed groove 61c. In this embodiment, the vertical position of the first case 56A can be changed by releasing the locked state. However, since this operation is performed with the right refrigerating compartment door 11Ab open, FIG. The η direction is described as the opposite direction, and the forward arrow when facing straight is described as the +η direction.
To release the locked state, as shown in FIG. 12, for example, a user's finger F or the like is put on the operation lever 71B to retract the slide member 71 toward the locking holder 73 (+η direction).

When the operating lever 71B is pulled in the +η direction, the slider 71A moves in the +η direction. At this time, the elastic member 72 is compressed. A convex engagement portion 71a provided on the slider 71A retreats from the concave groove portion 61c. As a result, the engagement between the slider 71A and the concave-convex engaging portion Ea is released.
When the amount of movement of the slider 71A becomes larger than the protrusion amount d2 of the convex engaging portion 71a, the distance between the locking projection 57L and the convex engaging portion 71a becomes equal to the distance between the front surface 64d and the flat portion 61b. , the locking projection 57L can be separated from the front surface 64d, and the convex engaging portion 71a can be separated from the flat portion 61b.
As a result, the locked state of the first case 56A on the +X direction side is released (unlocked state).

Similarly, in the first case 56A, the locking protrusion 57R and the locking portion 58R on the side surface in the -X direction sandwich the rail portion 64Ba and the concave-convex engaging portion Eb between the locked state and the unlocked state. is switchable. However, in the engagement structure between the rib 61B and the rail portion 64Ba, only the +X direction side in the lateral width direction of the concave-convex engaging portion Eb is used.

The first case 56A is allowed to move in the vertical direction when both of the locking states by the locking portions 58 in the width direction are released. Therefore, the first case 56A will not fall even if one of the operation levers of the lock portion 58 is moved when the stored items are taken into and out of the refrigerating chamber 27A.

In the present embodiment, each of the front surfaces 64d and the stepped portions 53c and 53g of the rail portions 64A and 64Ba are flat surfaces along the vertical direction. Accordingly, in the unlocked state, the locking projections 57L and 57R can move smoothly in the vertical direction along the gaps between the front surfaces 64d and the stepped portions 53c and 53g.

Similarly, in the second case 56B, the lock projection 57L and the lock portion 58L on the side surface in the +X direction sandwich the rail portion 64Bc and the concave-convex engagement portion Eb to switch between the locked state and the unlocked state. provided as possible. However, in the engagement structure between the rib 61B and the rail portion 64Ba, only the -X direction side in the lateral width direction of the uneven engagement portion Eb is used.
Further, in the second case 56B, the locking projection 57R and the locking portion 58R on the side surface in the -X direction can switch between the locked state and the unlocked state with the rail portion 64C and the concave-convex engaging portion Ec interposed therebetween. is provided in

Similarly, in the third case 56C, the locking projection 57L and the locking portion 58L on the side surface in the +X direction are switched between the locked state and the unlocked state with the rail portion 64A and the concave-convex engaging portion Ea interposed therebetween. provided as possible.
Furthermore, in the third case 56C, the locking projection 57R and the locking portion 58R on the side surface in the -X direction can switch between the locked state and the unlocked state with the rail portion 64C and the concave-convex engaging portion Ec interposed therebetween. is provided in

The right refrigerating compartment door 11Ab has been described above, but the left refrigerating compartment door 11Aa has the same configuration except that the widths in the opening/closing direction and the width direction are different.
Although the internal configuration of the left refrigerating compartment door 11Aa is not particularly illustrated, an internal configuration similar to that of the right refrigerating compartment door 11Ab may be used.
However, for example, the rib 61B may be omitted depending on the lateral width of the left refrigerating compartment door 11Aa. In this case, cases similar to the third case 56C may be arranged above and below inside the left refrigerating compartment door 11Aa.

Next, the operation of the refrigerator 1 will be described with a focus on attaching and detaching the case 56 .
13 and 14 are cross-sectional views for explaining the attachment/detachment operation of the door container in the refrigerator of the first embodiment.

Each case 56 is detached from the rear surface member 53 in the unlocked state described above with the right refrigerating compartment door 11Ab opened.
For example, when the first case 56A is attached to the rear surface member 53, the operator unlocks the lock portion 58La with a finger F, as shown by the first case 56Aa indicated by a chain double-dashed line in FIG. It is inserted in the -η direction toward the gap 64h with the rib 61F.
Although not particularly shown, the lock portion 58R is similarly unlocked and inserted in the -η direction toward the gap between the upper surface 64e of the rail portion 64Ba and the rib 61F.
After the locking projection 57L is inserted into the stepped portion 53c and the locking projection 57R (not shown) is in contact with the stepped portion 53g (not shown), the first case 56A is lowered (moved in the -Z direction).

The operation of the +X direction side surface of the first case 56A shown in FIG. 13 will be mainly described below.
When the first case 56A is further lowered, the locking projection 57L is inserted between the stepped portion 53c and the front surface 64d of the rail portion 64A.
As a result, as shown in FIG. 12, the first case 56A can move vertically along the gap between the front surface 64d and the stepped portion 53c. In the present embodiment, the operating lever 71B extends downward from the substantially central portion of the slider 71A, so that the finger F is placed in the space between the tip of the slider 71A in the -η direction and the front surface portion 71m of the operating lever 71B. placed in In this embodiment, even if the operation lever 71B is moved in the most −η direction in the movable range, a gap is formed between the flat portion 61b and the front surface portion 71m into which the finger F can be inserted. Therefore, the finger F is not pinched between the rib 61A and the operating lever 71B.
Furthermore, since each operating lever 71B is positioned in the +η direction relative to the ribs 61A, 61B, and 61C, it can be easily visually recognized by the operator. For example, after releasing the finger F, the operator can easily place the finger F on the operation lever 71B again.

The operator moves the first case 56A to an appropriate position where the first case 56A is desired to be fixed in the vertical direction. At this time, since the operator can see the concave-convex engaging portions Ea and Eb, the operator can confirm in advance the position of the concave groove portion 61c with which the convex engaging portion 71a is engaged.
After moving the first case 56A to an appropriate position, the operator relaxes the finger F. The slide member 71 moves in the −η direction due to the biasing force from the elastic member 72 .
At this time, if the concave groove portion 61c exists in the -η direction and a part of the convex engaging portion 71a enters the concave groove portion 61c, the locked state indicated by the solid line in FIG. 13 is formed.
That is, as shown in FIG. 6, an upper curved portion 61h and a lower curved portion 61d extending from the flat portion 61b toward the concave groove portion 61c are formed in the vicinity of the concave groove portion 61c. Even if it is slightly displaced in the vertical direction from the position of the recessed groove 61c, it is guided along the upper curved portion 61h to the upper engaging portion 61g or along the lower curved portion 61d to the lower engaging portion 61e.
In particular, when the convex engaging portion 71a abuts against the upper curved portion 61h or the upper engaging portion 61g, the reaction force component from these also coincides with the direction of the self-weight component of the first case 56A, so that the first case 56A can be moved more smoothly. 1 case 56A descends. In this manner, the lower engaging portion 71b contacts the flat portion 61b.

On the other hand, when the deviation between the convex engaging portion 71a and the concave groove portion 61c is large, the tip of the convex engaging portion 71a contacts the flat portion 61b. In this case, when the operator shifts the first case 56A in the vertical direction, the convex engagement portion 71a enters the adjacent concave groove portion 61c, and the locked state is formed as described above.

If the position of the first case 56A in the locked state is different from the desired position, the operator pulls the operating lever 71B in the +η direction to create the unlocked state, and then, in the same manner as described above, protrudes into the other recessed groove 61c. can be engaged.
In this embodiment, the upper side of the recessed groove portion 61c is an upper engaging portion 61g that is inclined in the +Z direction toward the +Y (+η) direction, and the lower side is a flat portion 61b that extends horizontally. Therefore, when the convex engaging portion 71a moves in the +η direction to some extent, it can move upward along the upper engaging portion 61g with some ease. However, it is difficult to lower the first case 56A in the range overlapping with the plane portion 61b. Therefore, the first case 56A is less likely to fall while the locked state is being released.
Furthermore, in the present embodiment, the lower curved portion 61d is formed below the opening of the recessed groove portion 61c. A sharp drop is suppressed in the range of the curved portion 61d.
Similarly, since the upper curved portion 61h is formed above the opening of the concave groove portion 61c, even if the convex engaging portion 71a moves in the +η direction relative to the upper engaging portion 61g, the upper curved portion 61h In the range of , a steep rise is suppressed.
As a result, sudden vertical movement of the first case 56A during the unlocking process of the locked state is suppressed.
In particular, when R2 is larger than R1, the upper curved portion 61h is curved more than the lower curved portion 61d, so that the upward movement that requires a force to lift the first case 56A has resistance. reduced. As a result, the upward movement of the first case 56A can be performed smoothly.

The first case 56A indicated by the solid line in FIG. 13 is engaged with the uppermost concave groove portion 61c of the concave-convex engaging portion Ea.
The first case 56A can be engaged with any of the first to fifth concave groove portions 61c from the top of the concave-convex engaging portion Ea.
However, in this embodiment, since the first stopper 53d is provided, the locking projection 57L cannot move below the first stopper 53d like the locking projection 57Lb indicated by the two-dot chain line. As a result, even if each locking portion 58 of the first case 56A is intentionally unlocked or if it breaks down and is unlocked, the first case 56A will not be in contact with the fifth concave groove portion 61c from the top. It never falls below the engaged position.

Next, an example of attaching the third case 56C to the rear surface member 53 will be described. However, as in the case of the first case 56A, the +X direction end of the third case 56C will be mainly described.
In order to attach the third case 56C to the rear surface member 53, the operator places the lock portion 58La in the unlocked state with a finger F and moves toward the gap 64i, as in the case of the third case 56Ca indicated by a two-dot chain line in FIG. and insert in the -η direction.
After the locking projection 57La is inserted to such an extent that it comes into contact with the stepped portion 53c like the locking projection 57Lb indicated by the two-dot chain line, the operator vertically moves the third case 56C.
For example, the operator may raise the third case 56C as indicated by the solid line.
For example, the operator may once lower the third case 56C to a position where the locking projection 57Lc is locked to the second stopper 53e from above as shown by the chain double-dashed line. In this case, the lowering of the third case 56C is stopped by the locking projection 57Lc being locked to the second stopper 53e, so the operator may release the third case 56C.
The operator can move the third case 56C upward to form the locked state in the same manner as the first case 56A described above. In the case of the third case 56C, the locked state can be formed in any one of the six concave groove portions 61c on the lower side of the concave-convex engaging portion Ea.
For example, the third case 56C indicated by the solid line in FIG. 14 is engaged with the second concave groove portion 61c from the bottom in the concave-convex engaging portion Ea.

In this embodiment, since the ribs 61A and 61C are provided with the second stoppers 53e, the locking projections 57 cannot move below the second stoppers 53e. As a result, even if the locking portions 58 of the third case 56C are unlocked intentionally or if they break down and become unlocked, the fall position of the third case 56C is restricted by the second stoppers 53e. be.
Furthermore, when the locking projection 57L is locked to the second stopper 53e, as shown by the locking projection 57Lc, the second rail portion, which is a part of the rail portion 64A below the gap 64i, extends in the +η direction. 64b are arranged. Therefore, unless the operator lifts the third case 56C, the third case 56C does not come off in the +η direction through the gap 64i.

As described above, according to the refrigerator 1 of the present embodiment, the case 56 has the clamping mechanisms 60 on both sides in the width direction, and the right refrigerating chamber door 11Ab and the left refrigerating chamber door 11Aa are each provided with ribs. 61 and a rail portion 64 . The clamping mechanism 60 has a slider 71A that can be engaged with the concave-convex engaging portion E of the rib 61, and can clamp the rail portion 64 and the concave-convex engaging portion E in the depth direction.
Thereby, in the refrigerator 1, it is easy to change the arrangement of the case 56 in the vertical direction. Furthermore, rattling of the case 56 can be suppressed.

(Second embodiment)
A refrigerator 1A of the second embodiment will be described.
As shown in FIG. 1, a refrigerator 1A of this embodiment includes a right refrigerator compartment door 31 (door) instead of the right refrigerator compartment door 11Ab in the refrigerator 1 of the first embodiment. The right refrigerating compartment door 31 differs from the right refrigerating compartment door 11Ab in the door container contained therein.
FIG. 15 is a perspective view showing an example of a door container in the refrigerator of the second embodiment. FIG. 16 is a cross-sectional view showing the locked state of the door container in the refrigerator of the second embodiment.

Right refrigerating compartment door 31 includes first case 86A, second case 86B and third case 86C (door container). The first case 86A, the second case 86B, and the third case 86C are provided with clamping mechanisms 80 (80R, 80L) instead of the clamping mechanisms 60 (60R, 60L).
Each clamping mechanism 80 includes locking projections 87 (87R, 87L) in place of the locking projections 57 (57R, 57L) in each clamping mechanism 60. As shown in FIG. The following description will focus on the differences from the first embodiment.

The locking projection 87R protrudes in the -X direction from the second side wall portion 56e at the -Y direction end of the second side wall portion 56e. The shape of the locking projection 57R viewed from the +X direction is a rectangular shape that is elongated in the vertical direction as a whole.
Three or more ridges 87a are provided at intervals in the vertical direction on the +Y direction end face of the locking projection 87R in this embodiment. In the example shown in FIGS. 15 and 16, the number of protrusions 87a is three.
Each projection 87a extends in the -X direction from the second side wall portion 56e. The ends of the projections 87a in the +Y direction are aligned on the same plane with the depth direction as the normal direction.

Three or more ridges 87b are provided at intervals in the vertical direction on the end surface of the locking projection 87R in the -Y direction. In the example shown in FIGS. 15 and 16, the number of protrusions 87b is three.
Each projection 87b extends in the -X direction from the second side wall portion 56e. The ends of the projections 87b in the -Y direction are aligned on the same plane with the depth direction as the normal direction.
Although the vertical position of each projection 87b is not particularly limited, in the example shown in FIG. 15, each projection 87a is arranged at a position facing the depth direction.
Each of the projections 87a and 87b has an arcuate cross-sectional shape in a cross section along a plane whose normal direction is the width direction.

The distance between the tip of each protrusion 87a in the projecting direction and the tip of each protrusion 87b in the projecting direction is the distance between the tips of the upper protrusions 57a and the lower protrusions 57b of the locking protrusion 57R and the flat part 57d. equal to the distance of

The locking projection 87L has a shape and arrangement that are plane-symmetrical to the locking projection 87R with respect to a plane whose normal direction is the width direction between the second side wall portion 56e and the first side wall portion 56d. Therefore, as shown in FIG. 16, the locking projection 87L has protrusions 87a and 87b similar to the locking projection 87R.

This embodiment is the same as the first embodiment except that the locking projection 87 is provided instead of the locking projection 57. Therefore, for example, FIG. , the rail portion 64A and the concave-convex engaging portion Ea are sandwiched by the sandwiching mechanism 80L in the same manner as in the first embodiment.
However, in this embodiment, three or more protrusions 87a can contact the front surface 64d in the locked state. That is, this embodiment is an example in which the locking projection 87 may come into contact with the rail portion at three or more locations.
Furthermore, in the present embodiment, when the locking projection 87 moves vertically to unlock, the stepped portion 53c and the three or more projections 87b can come into contact with each other. Therefore, when the protrusion 87b is the stepped portion 53c, the frictional force acting from the stepped portion 53c during vertical movement is reduced compared to the case where the flat surfaces are in contact with each other.
Therefore, the first case 86A can be moved more smoothly when the lock is released.

(Third embodiment)
A refrigerator 1B of the third embodiment will be described.
As shown in FIG. 1, a refrigerator 1B of this embodiment includes a right refrigerator compartment door 32 (door) instead of the right refrigerator compartment door 11Ab in the refrigerator 1 of the first embodiment. The right refrigerating compartment door 31 differs from the right refrigerating compartment door 11Ab in the door container and the rail portion included therein.
FIG. 17 is an exploded perspective view showing an example of the door container in the refrigerator of the third embodiment. FIG. 18 is a cross-sectional view showing the locked state of the door container in the refrigerator of the third embodiment.

Right refrigerating compartment door 32 has first case 96A, second case 96B and third case 96C (door container).
Furthermore, the rear surface member 53 of the right refrigerator compartment door 32 has three ribs 66 (first wall portion, second wall portion) instead of the ribs 61A, 61B, and 61C of the refrigerator 1 . FIG. 18 shows a rib 66A among the ribs 66 corresponding to the rib 61A. Each rib 66 has a concave-convex engaging portion 67 and a rail portion 68 instead of the concave-convex engaging portion E and the rail portion 64 in each rib 61 . FIG. 18 shows the concave-convex engaging portion 67A and the rail portion 68A of the rib 66A among the concave-convex engaging portions 67 and the rail portions 68. As shown in FIG.

Although not shown, the ribs 66 corresponding to the ribs 61B and 61C are referred to as ribs 66B and 66C, respectively.
The rib 66B is provided on the rear surface member 53 in the same manner as the rib 61B except that the rib 66B is thinner than the rib 61B. However, the protrusion height of the rib 66B from the inner surface portion 53a may be the same as that of the rib 61B or may be the same as that of the rib 66A.
A side surface Sp of the rib 66B is provided with a concave-convex engaging portion 67 and a rail portion 68 similar to those of the rib 61A, except that the length in the vertical direction is short, and projecting in the +X direction.
A side surface Sm of the rib 66B is provided with a concave-convex engaging portion 67 and a rail portion 68 which are similar to those of the rib 61A except that the length in the vertical direction is short, projecting in the -X direction.
The rib 66C has a shape and arrangement that are symmetrical to the rib 66A with respect to a plane whose normal direction is the lateral width direction between the second side wall portion 56e and the first side wall portion 56d. Similarly, the rib 66C includes a concave-convex engaging portion 67 and a rail portion 68 having shapes and arrangements that are plane-symmetrical to the concave-convex engaging portion 67A and the rail portion 68A.

As shown in FIG. 17, the first case 96A, the second case 96B, and the third case 96C each include a clamping mechanism 90 (90R, 90L) instead of the clamping mechanism 60 (60R, 60L).
Each clamping mechanism 90 includes lock portions 98 (98R, 98L) instead of the lock portions 58 (58R, 58L). In the following, the points different from the first embodiment will be mainly described.

The lock portion 98R is provided at the +Y direction end of the second side wall portion 56e.
The locking portion 98R includes a holding portion 98a, a sliding member 91 and a cover 99 instead of the holding portion 58a, the sliding member 71 and the cover 70 of the locking portion 58R.
The lock portion 98L has a shape and arrangement that are symmetrical to the lock portion 98R with respect to a plane whose normal direction is the width direction between the second side wall portion 56e and the first side wall portion 56d. Therefore, the shape and arrangement of the holding portion 98a, the slide member 91, and the cover 99 of the lock portion 98L can be easily understood by reversing the +X direction and the −X direction in the description of the configuration of the lock portion 98R. be. In particular, the lock portions 98R and 98L have a common cross-sectional shape on a plane whose normal direction is the lateral width direction.
The configuration of the lock portion 98R will be described below unless otherwise specified. However, for parts that cannot be seen on the drawing, the illustration of the corresponding part in the lock part 98L may be referred to.

The holding portion 98a is configured in the same manner as the holding portion 58a except that the position of the locking hole 58e is different and that a guide hole 98b is added.
However, one locking hole 58e is provided in the first guide plate 58b and two are provided in the second guide plate 58c.
As the guide hole 98b in the second side wall portion 56e is shown in FIG. 17, the guide hole 98b extends through the second side wall portion 56e between the first guide plate 58b and the second guide plate 58c in the thickness direction. there is The shape of the guide hole 98b when viewed from the +X direction is an oval shape elongated in the depth direction. Although not shown in FIG. 17, a similar guide hole 98b is also formed in the first side wall portion 56d.

The slide member 91 has a slider 91A (engagement portion) and an operation lever 91B.
The slider 91A is accommodated in the gap between the first guide plate 58b and the second guide plate 58c and is slidable in the depth direction. A convex engaging portion 91a that can be engaged with a concave groove portion 67c, which will be described later, is provided at the tip of the slider 91A in the -Y direction.
The operating lever 91B is a rod-shaped member extending in the -Z direction from the intermediate portion in the depth direction of the lower surface of the slider 91A. The operating lever 91B has a J-shaped outer shape similar to that of the operating lever 71B, except that the shape on the -Y direction side is formed by a front rib 98m.
The operating lever 91B is inserted through the notch 58f and protrudes downward from the second guide plate 58c.
A detailed configuration of the slide member 91 will be described later.

The cover 90 has an upper plate portion 70a, a lower plate portion 70b, and side plate portions 70c similar to the cover 70. As shown in FIG. However, the lower surface of the upper plate portion 70a is provided with projections that engage with the locking holes 58e in the first guide plate 58b. Similarly, the upper surface of the lower plate portion 70b is provided with protrusions that engage with the two locking holes 58e of the second guide plate 58c.
The cover 90 is fixed to the holding portion 98a by engaging each projection with each locking hole 58e.

As shown in FIG. 18, the rib 66A is provided on the rear surface member 53 (not shown) in the same manner as the rib 61A except that it does not have the rib 61a and is thinner than the rib 61A.
The outer side surface (+X direction side) of the rib 66A is arranged at the same position as the outer side surface of the rib 61A, but the inner side surface S is arranged closer to the +X direction than the side surface S of the rib 61A. .
The uneven engagement portion 67A includes a plate-like portion 67a that protrudes in the −X direction from the side surface S and extends in the vertical direction, and a plurality of protrusions that protrude in the −X direction from the side surface S and extend in the +Y direction from the plate-like portion 67a. and a portion 67b (convex portion).
The plate-like portion 67a is formed to have the same length in the vertical direction as the concave-convex engaging portion Ea in the first embodiment.
The protrusions 67b are arranged with a gap of height H1 in the vertical direction. The amount of protrusion of each projecting piece 67b from the plate-like portion 67a is d3.
A square groove-shaped concave groove portion 67c (concave portion) that opens in the +Y direction is formed between the projecting piece portions 67b that are adjacent to each other in the vertical direction.
In this manner, in the concave-convex engaging portion 67, the projecting pieces 67b, which are convex portions, and the concave groove portions 67c, which are concave portions, are alternately arranged in the vertical direction.

The rail portion 68A is arranged closer to the inner surface portion 53a than the uneven engagement portion 67A in the depth direction. The rail portion 68A has a first rail portion 68a and a second rail portion (not shown) corresponding to the first rail portion 64a and the second rail portion 64b.

The first rail portion 68a has a front surface 68d instead of the front surface 64d of the first rail portion 64a.
The shape of the front surface 68d viewed from the +X direction is an uneven shape in which convex portions 68e and flat portions 68f are alternately arranged in the vertical direction.
The convex surface portion 68e has an arc shape when viewed from the +X direction, and protrudes from the flat surface portion 68f in the -Y direction. The convex surface portions 68e that are adjacent to each other in the vertical direction are formed in such a shape that both of them enter the concave portion 57c of the locking projection 57L. Furthermore, between the convex surfaces 68e adjacent to each other in the vertical direction, recesses are formed in which the upper convex portion 57a or the lower convex portion 57b of the locking projection 57L can contact the flat portion 68f.

Next, the detailed configuration of the slide member 91 and the internal configuration of the lock portion 98 will be described based on the cross-sectional view of the lock portion 98L shown in FIG. FIG. 18 shows the position of the slide member 91 in the locked state in which the convex engaging portion 91a is engaged with the concave groove portion 67c.
The upper and lower ends of the slider 91A are in slidable contact with the lower surface of the first guide plate 58b and the upper surface of the second guide plate 58c, respectively. Therefore, the slider 91A can slide in the depth direction along at least one of the lower surface of the first guide plate 58b and the upper surface of the second guide plate 58c.
As shown in FIG. 17, a side surface portion 91g of the slider 91A of the lock portion 98L facing the second side wall portion 56e is provided with a guide projection 91h that is slidably fitted in the guide hole 98b in the depth direction. Although not shown, the slider 91A of the lock portion 98R is provided with a similar guide projection 91h on the side portion 91g facing the first side wall portion 56d.

As shown in FIG. 18, the vertical height H2 of the slider 91A is greater than the opening width H1 of the groove 67c.
The −Y direction tip surfaces of the upper and lower ends of the slider 91A are positioned on the same plane with the depth direction as the normal direction.
The tip surface of the upper end portion of the slider 91A constitutes an upper engaging portion 91e (abutting portion, engaging portion) that engages the plate-like portion 67a in the locked state from the -Y direction.
The tip surface of the lower end portion of the slider 91A constitutes a lower engaging portion 91f (abutting portion, engaging portion) that engages the plate-like portion 67a in the locked state from the -Y direction.
In this embodiment, the convex engaging portion 91a is an engaging portion that engages with the concave-convex engaging portion E in the vertical direction, and the upper locking portion 91e and the lower locking portion 91f engage with the concave-convex engaging portion E. It is an engaging portion that engages in the -Y direction.

The convex engaging portion 91a protrudes in the -Y direction from between the upper engaging portion 91e and the lower engaging portion 91f in the vertical direction.
As shown in FIG. 17, the convex engaging portion 91a includes a generally rectangular engaging projection 91b having an opening at least at the top, and a projecting piece extending in the −Y direction and arranged in the opening at the upper portion of the engaging projection 91b. 91c and
As shown in FIG. 18, the engaging projection 91b has an outer shape that can be inserted into the concave groove portion 67c.
The projecting piece 91c is a cantilever projecting from the front end surface of the slider 91A in the -Y direction. A pressing portion 91d is provided on the upper side of the tip portion in the projecting direction of the projecting piece portion 91c. The distance from the lower surface of the engaging projection 91b to the upper end surface of the pressing portion 91d is greater than H1. Therefore, when the projecting piece 91c is inserted into the groove 67c, the pressing portion 91d contacts the projecting piece 67b that forms the upper inner surface of the groove 67c, and is pushed under the projecting piece 67b. .
A distance d4 from the upper engaging portion 91e and the lower engaging portion 91f to the tip of the convex engaging portion 91a in the -Y direction is smaller than d3. Therefore, when the upper locking portion 91e and the lower locking portion 91f are in contact with the concave groove portion 67c, the tip of the convex engaging portion 91a is separated from the plate-like portion 67a.

According to this embodiment, the slider 91A is urged in the -Y direction by the elastic member 72 while the convex engaging portion 91a is inserted into the concave groove portion 67c. As a result, the upper engaging portion 91e and the lower engaging portion 91f press the two protruding pieces 67b forming the recessed groove 67c. Thereby, the longitudinal direction of the slider 91A is perpendicular to the extending direction of the concave-convex engaging portion 67A.
The convex engaging portion 91a engages with the concave groove portion 67c in the vertical direction while pressing the inner surface of the concave groove portion 67c in the vertical direction in the vertical direction.

On the other hand, the locking projection 57L is moved in the +Y direction by the pressing force of the elastic member 72, and the upper convex portion 57a and the lower convex portion 57b are in contact with the front surface 68d of the rail portion 68L. Two convex portions 68e are inserted between the upper convex portion 57a and the lower convex portion 57b. As a result, the locking projection 57L gently engages in the vertical direction while pressing the rail portion 68A.
Thus, the elastic member 72 is provided so as to press the uneven engagement portion 67A with the rail portion 68A and the uneven engagement portion 67A interposed between the convex engagement portion 91a and the locking projection 57L. there is

Although not particularly shown, the clamping mechanism 90R forms an engagement structure similar to that of the clamping mechanism 90L with the concave-convex engaging portion 67 and the rail portion 68 provided on the side surface Sp of the rib 66B.
The same applies to the engagement structure between each clamping mechanism 90 in the second case 96B and each concave-convex engaging portion 67 and each rail portion 68 provided on the side surface Sm of the rib 66B and the side surface S of the rib 66C.
The same applies to the engagement structure between each clamping mechanism 90 in the third case 96C and each concave-convex engaging portion 67 and each rail portion 68 provided on the side surface S of the rib 66A and the side surface S of the rib 66C.

According to the present embodiment, each clamping mechanism 90 can be switched between the locked state and the unlocked state by operating the operation lever 91B to change the arrangement position of each case 96 in the vertical direction in the same manner as in the first embodiment. can be easily changed.
Furthermore, each clamping mechanism 90 is configured by four points, ie, an upper engaging portion 91e and a lower engaging portion 91f, and an upper projecting portion 57a and a lower projecting portion 57b, as in the first embodiment. It sandwiches the joint portion 67 and the rail portion 68 . At this time, a pressing force is applied by the elastic member 72 in the pinching direction. Therefore, as in the first embodiment, rattling of each case 96 in the locked state can be suppressed.

In particular, according to this embodiment, in the locked state, a pressing force due to the elastic restoring force of the plate-like portion 67a acts on the inner surface of the concave groove portion 67c from the convex engaging portion 91a in the vertical direction, so an external force acts on the case 96. In this case, rattling in the vertical direction is further suppressed.
Furthermore, according to this embodiment, since the rail portion 68 has an uneven shape, loose engagement is also formed between the rail portion 68 and the locking projection 57 in the locked state. are more likely to be suppressed.
The uneven shape of the rail portion 68 also has a function of guiding the locking projection 57 to the central position of engagement with the concave groove portion 67c when the convex engaging portion 91a is engaged with the concave groove portion 67c. Therefore, when the case 96 is moved in the vertical direction, even if the concave groove portion 67c with which the convex engaging portion 91a engages is not directly visible, the convex engaging portion 91a is positioned at the engagement position with the concave groove portion 67c. can be smoothly guided to

In each of the above embodiments, the clamping mechanisms on both sides of each door container are symmetrical, but at least one of the structure and arrangement of the clamping mechanisms may not be symmetrical. In this case, at least one of the shape and arrangement of the concave-convex engaging portion and the rail portion that engage with each clamping mechanism may be asymmetrical.

In the first and second embodiments described above, the concave groove portion 61c of the rib 61B penetrates the tip portion of the rib 61B in the lateral width direction. In this case, since the gap between the lock portion 58R of the first case 56A and the lock portion 58L of the second case 56B can be narrowed, the accommodation space of the first case 56A and the second case 56B can be increased. be able to.
However, if there is room in the accommodation space of the first case 56A and the second case 56B, the concave groove portion 61c may be divided in the width direction. For example, a rib such as an appropriate ridge or projecting piece may be provided at the central portion of the rib 61B in the thickness direction, dividing the concave groove portion 61c into left and right sides and protruding beyond the concave groove portion 61c.

In each of the above-described embodiments, the engaging portion of the clamping mechanism is described as having the convex engaging portion that engages with the concave portion of the concave-convex engaging portion. However, the engaging portion of the clamping mechanism may be a concave engaging portion that engages with the convex portion of the concave-convex engaging portion.

In each of the above-described embodiments, it has been described that a portion of the engaging portion of the clamping mechanism has two abutting portions spaced apart in the vertical direction. However, the abutting portion may be provided at one location, or may be provided at three or more locations.
Furthermore, if the engaging portion can engage with the uneven engaging portion in a direction intersecting the vertical direction and the lateral width direction, the abutting portion may not be provided.

In each of the above-described embodiments, it has been described that the clamping mechanism grips the rail portion and the concave-convex engaging portion by relatively moving the slide member having the engaging portion with respect to the case. However, at least one of the engaging portion and the locking projection may move relative to the case as long as the clamping mechanism can grip the rail portion and the concave-convex engaging portion.

In the second and third embodiments, the configuration of the right refrigerator compartment door has been described, but the configurations of the second and third embodiments can be similarly applied to the left refrigerator compartment door 11Aa in the first embodiment. .

In each of the above-described embodiments, each locking projection has been described as being composed of one projection that is elongated in the vertical direction. However, each locking projection may be a plurality of projections spaced apart in the vertical direction and protruding in the widthwise direction. Furthermore, the shape of the locking projection is not limited to a shape elongated in the vertical direction. For example, the shape of the locking projection may have a round bar-like or square bar-like outer shape with substantially the same length in the vertical direction and the depth direction.
For example, if the locking projections are rod-shaped projections that are spaced apart in the vertical direction, two of the projections that are most distant in the vertical direction are the first projection and the second projection. may be formed.

According to at least one embodiment described above, the clamping mechanism provided on the door container can engage with the concave-convex engaging portion provided on the rail portion at least in the vertical direction, and the rail portion and the concave-convex engaging portion can be engaged. Since it can be clamped in the first direction, it is possible to provide a refrigerator in which the arrangement position of the door container can be easily changed and rattling of the door container can be suppressed.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

1, 1A, 1B... refrigerator, 5... refrigerator body 5, 11Aa... left refrigerator compartment door (door), 11Ab, 31, 32... right refrigerator compartment door (door), 27... storage compartment, 27A... refrigerator compartment, 52... Front plate 53 Rear surface member 53a, 53b Inner surface portion 53c, 53g Step portion 53d First stopper 53e Second stopper 56 Case (door container) 56A, 56Aa, 56Ab, 86A, 96A... First case (door container), 56B, 86B, 96B... Second case (door container), 56C, 86C, 96C... Third case (door container), 56d... First side wall part, 56e... Second side wall Part 57, 57L, 57R, 57La, 57Lb, 57Lc, 87, 87L, 87R... Locking projection 57a... Upper convex part 57b... Lower convex part 58, 58L, 58R, 98, 98L, 98R... Lock Sections 60, 60L, 60R, 80, 80L, 80R, 90, 90L, 90R... Clamping mechanism 61a... Ribs (first wall, second wall Body portion), 61b... Flat portion (convex portion), 61c, 67c... Groove portion (concave portion), 61e... Lower engaging portion (first horizontal surface portion), 61g... Upper engaging portion (first inclined surface portion), 64, 64A, 64Ba, 64Bc, 64C, 68, 68A... rail portion, 64h, 64i... gap, 67, 67A, E, Ea, Eb, Ec... concave and convex engaging portion, 67b... protruding portion (convex portion), 70, 99... Cover 71, 91... Slide member (engaging portion) 71a, 91a... Convex engaging portion 71b... Lower engaging portion (second horizontal surface portion) 71c... Upper engaging portion (second 2 inclined surface portion), 71B, 91B... operation lever, 71e, 91e... upper engaging portion (impacting portion), 71f, 91f... lower engaging portion (impacting portion), 72... elastic member (pressing member, spring ), 73... Locking holder (pressing member), 87a, 87b... Ribs, S, Sm, Sp... Side surface

Claims (8)

a refrigerator body including a storage compartment;
a door that openably closes the storage chamber;
a first wall portion projecting in a first direction toward the storage chamber from an inner surface portion of the door and extending in a vertical direction;
a second wall portion projecting in the first direction from the inner surface portion, extending in the vertical direction, and facing the first wall portion in a second direction intersecting the first direction;
concave-convex engagement portions respectively provided on the first wall portion and the second wall portion;
rail portions projecting from side surfaces of the first wall portion and the second wall portion facing each other and extending in the vertical direction;
a door container movable in the vertical direction between the first wall portion and the second wall portion along the rail portion;
with
The door container is
an engaging structure capable of engaging with the concave-convex engaging portion at least in the vertical direction and movable in the vertical direction when the engaged state is released ;
The door container further includes a locking projection movable in the vertical direction along the rail portion,
The locking projection has a plurality of projections on a surface facing the rail portion,
refrigerator. The concave-convex engaging portion has a plurality of concave portions and convex portions adjacent to each other in the vertical direction at tip portions of the first wall portion and the second wall portion in the first direction,
Refrigerator according to claim 1. The plurality of protrusions include a first protrusion capable of contacting the rail and a second protrusion capable of contacting the rail at a position lower than the first protrusion in the vertical direction. , wherein the locking projection abuts on the rail portion at two locations separated in the vertical direction by the first projection portion and the second projection portion;
Refrigerator according to claim 1. The engagement structure is
An engaging portion arranged opposite to the locking projection and provided to be able to advance and retreat relative to the locking projection, and capable of engaging at least in the vertical direction with the concave-convex engaging portion at the leading end portion in the advancing direction. and,
a pressing member that biases the engaging portion toward the locking protrusion and presses the uneven engaging portion;
The engaging portion further includes at least one abutting portion that engages the distal end portion of the convex portion of the concave-convex engaging portion in the advancing direction,
The at least one abutting portion is engaged with the tip portion of the convex portion between contact positions of the first projection portion and the second projection portion in the vertical direction.
The refrigerator according to claim 3 . The engagement structure is
An engaging portion arranged opposite to the locking projection and provided to be able to advance and retreat relative to the locking projection, and capable of engaging at least in the vertical direction with the concave-convex engaging portion at the leading end portion in the advancing direction. and,
a pressing member that biases the engaging portion toward the locking protrusion and presses the uneven engaging portion;
with
The engaging portion further includes at least one abutting portion that engages the distal end portion of the convex portion of the concave-convex engaging portion in the advancing direction,
The refrigerator according to claim 3. at least one abutting portion is engaged with the tip portion of the projection on both the upper side and the lower side of the engaging portion;
The refrigerator according to claim 5. The pressing member has a spring that biases the engaging portion in the advance direction,
The engaging portion has an operating lever that applies an operating force to move the engaging portion in a direction opposite to the advance direction,
The refrigerator according to any one of claims 5-6 . The concave-convex engaging portion is
a first horizontal surface portion formed on the inner surface of the lower side of the concave portion of the concave/convex engaging portion and extending in the horizontal direction;
a first inclined surface portion formed on the inner surface on the upper side of the recess and inclined obliquely upward with respect to the horizontal surface as it progresses in the first direction;
The engaging portion is
a second horizontal surface portion that can be engaged with the first horizontal surface portion from above;
a second inclined surface portion that inclines in the same direction as the first inclined surface portion;
The refrigerator according to any one of claims 4-7 .

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