JP2023079815A - refrigerator - Google Patents

Abstract

To provide a refrigerator that can improve operability at the time of a movement of a door container in a vertical direction.SOLUTION: A refrigerator according to an embodiment comprises: a pair of wall body parts protruding rearward toward a storage chamber from an inner surface member of a door; a pair of extension parts protruding from side surfaces facing each other in the pair of wall body parts respectively, and extending in a vertical direction; and a door container capable of moving in the vertical direction between the pair of wall body parts along the pair of extension parts. The door container comprises: first guide parts and second guide parts for forming gaps for allowing insertion of the extension parts between them by being arranged at an interval between them in a depth direction, and for guiding a movement in the vertical direction with respect to the extension parts; and third guide parts for forming the gaps between themselves and the first guide parts together with the second guide parts arranged in front of the first guide parts, and for guiding a vertical movement of the door container at different positions from those of the second guide parts in the vertical direction.SELECTED DRAWING: Figure 6

Description

Embodiments of the present invention relate to refrigerators.

It is known to provide a door pocket (door container) on the door of a storage compartment in a refrigerator. It is preferable that the arrangement position of the door pocket in the vertical direction can be easily changed so that various items can be stored in the door pocket. In addition, it is desirable for the user to be able to smoothly change the arrangement position of the door pocket.

JP 2013-72614 A JP 2010-185628 A

The problem to be solved by the present invention is to provide a refrigerator capable of improving the operability when moving the door container in the vertical direction.

A refrigerator according to an embodiment has a housing that includes a storage compartment and a door that opens and closes the storage compartment. a pair of wall portions protruding rearward toward the storage chamber from an inner surface member of the door, extending in the vertical direction, and facing each other with a gap in the lateral width direction of the door; A pair of extending portions projecting from side surfaces facing each other and extending in the vertical direction, and a door container movable in the vertical direction between the pair of wall portions along the pair of extending portions. and have The door containers are spaced apart from each other in the depth direction to form a gap between them to allow the extension portion to pass therethrough, and to guide the vertical movement of the extension portion. The gap is formed between the first guide portion, the second guide portion, and the second guide portion disposed in front of the first guide portion, and the second guide portion and the second guide portion form the gap. has a third guide portion that guides the vertical movement of the door container at different positions in the vertical direction.

FIG. 1 is a front view showing a state in which the door of the refrigerator of the first embodiment is opened. FIG. 2 is a perspective view showing a left refrigerating compartment door in one embodiment. FIG. 3 is a perspective view showing the detailed configuration of the inner surface member of the left refrigerating compartment door. FIG. 4 is a perspective view showing the configuration of the door housing case. FIG. 5 is an exploded view showing the configuration of the door storage case. FIG. 6 is a perspective view showing the configuration of the elevator main body. FIG. 7 is a side view of the main body of the platform when viewed from the +X direction side. FIG. 8 is a side view of the main body of the platform when viewed from the -X direction side. FIG. 9 is a perspective view showing the structure of the lower surface side (−Z side) of the bottom surface portion of the elevator main body. FIG. 10 is a perspective view showing the configuration of the unlocking mechanism and the lower cover. FIG. 11 is a perspective view showing the structure of the lower surface side of the platform main body, viewed from the -Z direction side. FIG. 12 is a side view showing the configuration of the platform main body in the refrigerator of the second embodiment, and is a diagram of the platform main body viewed from the +X direction side. FIG. 13 is a side view showing the configuration of the platform main body in the refrigerator of the third embodiment, and is a view of the platform main body as seen from the +X direction side.

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 far side 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.

In the description of the parts included in the door of the refrigerator of the embodiment, unless otherwise specified, the description will be based on the arrangement of the door when the door is closed. For example, when describing a revolving door, unless otherwise specified, the ±X and ±Y directions described above are the directions in which the door is fixed even in the open state.

<First embodiment>
[refrigerator]
A refrigerator according to a first embodiment of the present invention will be described below.
FIG. 1 is a front view showing a state in which the door of the refrigerator of the first embodiment is opened.
The overall configuration of the refrigerator 1 of the first embodiment shown in FIG. 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.

The refrigerator 1 includes a housing 10, a pair of refrigerator compartment doors (doors) 12 and 13, and a plurality of doors 11, for example. A refrigerator 1 is a French door type refrigerator having two refrigerator compartment doors 12 and 13 .
The housing 10 includes, for example, an inner box, an outer box, and a heat insulating material.
The inner box is made of synthetic resin, for example, and has a shape recessed from the front side toward the rear side at a plurality of locations. Each recess of the inner box forms a plurality of refrigerating compartments (storage compartments) 27 . In the example shown in FIG. 1, the plurality of refrigerator compartments 27 includes a refrigerator compartment 27A, a vegetable compartment 27B, an upper freezer compartment 27C, a lower freezer compartment 27D and an ice making compartment 27E. Refrigerator compartment 27A, vegetable compartment 27B, upper freezer compartment 27C, and lower freezer compartment 27D are arranged in this order from top to bottom. The ice making compartment 27E is located on the left side of the upper freezer compartment 27C.

The housing 10 has an opening on the front side of each refrigerating compartment 27 that allows foods to be taken in and out of each refrigerating compartment 27 .
The outer box has a rectangular parallelepiped shape that forms three outer surfaces of the housing 10 excluding the front side. The outer box is made of, for example, metal or a composite material of metal and resin.
The heat insulating material is foamed heat insulating material such as urethane foam, and is filled between the inner box and the outer box. Thereby, the housing 10 has a heat insulating property.

In the housing 10, various members forming a refrigerator main body together with the housing 10 are arranged between the inner box and the outer box. The members forming the refrigerator main body include, for example, a cooling unit that forms cold air, a passage forming member that forms a flow path for circulating the cold air between each refrigerating compartment 27 and the cooling unit, and a flow path that circulates the cold air through the flow path. A cooling fan sent to the refrigerator compartment 27, a control board for controlling the operation of the cooling unit and the cooling fan, and the like are included.

The indoor temperature of the refrigerator compartment 27A is maintained at a lower temperature than the vegetable compartment 27B and a higher temperature than the upper freezer compartment 27C and the lower freezer compartment 27D. Inside the refrigeration compartment 27A, for example, a shelf for partitioning the room, a chilled compartment container, and the like are arranged. The entire surface of the refrigerator compartment 27A is covered with refrigerator compartment doors 12 and 13 that open to the left and right so that they can be opened and closed.

Left and right refrigerator compartment doors 12 and 13 are doors provided for opening and closing the refrigerator compartment 27A, as shown in FIG. Left and right refrigerating chamber doors 12 and 13 are different in width from each other, and the width of the refrigerating chamber door 12 on the left side as viewed from the front of the refrigerator 1 is narrower than the width of the refrigerating chamber door 13 on the right side.

The refrigerating compartment door 12 is connected to the left end of the housing 10 in the -X direction by a pair of hinges 32 respectively provided at the upper and lower ends on the left side, for example. The refrigerating compartment door 13 is connected to the +X direction right end of the housing 10 by a pair of hinges 33 respectively provided at the upper and lower ends on the right side in the +X direction, for example. These pair of refrigerating compartment doors 12 and 13 are rotatable in a horizontal plane around respective rotation axes OL and OR of hinges 32 and 33 extending in the vertical direction (Z direction), and rotate toward left and right sides, respectively. It is a revolving double door that opens by pressing. The refrigerating compartment door 12 rotates leftward about each rotation axis OL of the hinge 32 to open, and the refrigerating compartment door 13 rotates rightward about each rotation axis OR of the hinge 33 to open.
The user can open the refrigerator compartment doors 12 and 13 to the left and right by putting his or her hands in the grooves 8 provided on the lower end sides of the refrigerator compartment doors 12 and 13 and pulling them forward.

A plurality of doors 11 are doors provided for opening and closing vegetable compartment 27B, upper freezer compartment 27C, lower freezer compartment 27D, and ice making compartment 27E. Vegetable compartment door 11B, upper freezer compartment door 11C, lower freezer compartment door 11D, and ice making compartment door 11E cover the front surfaces of vegetable compartment 27B, upper freezing compartment 27C, lower freezing compartment 27D, and ice making compartment 27E, respectively.

The indoor temperature of the vegetable compartment 27B is maintained at a higher temperature than that of the refrigerator compartment 27A. In the interior of the vegetable compartment 27B, for example, a vegetable compartment container for storing stored items such as vegetables and a guide rail for moving the vegetable compartment container in the depth direction (Y direction) are provided.
The front surface of the vegetable compartment 27B is covered with a drawer-type vegetable compartment door 11B so that it can be opened and closed.
A heat insulating material is arranged inside the vegetable compartment door 11B. A gasket that abuts on the front surface of the inner box forming the front opening of the vegetable compartment 27B is provided on the outer edge of the inner surface of the vegetable compartment door 11B.
When the vegetable compartment door 11B is closed, the opening of the vegetable compartment 27B is adiabatically closed.
A vegetable compartment container is connected to the inner surface of the vegetable compartment door 11B. The vegetable compartment door 11B is movable in the depth direction together with the vegetable compartment container along the guide rail on which the vegetable compartment container is placed.

The indoor temperatures of the upper freezer compartment 27C, the lower freezer compartment 27D, and the ice making compartment 27E are maintained at temperatures at which the stored items can be frozen. Inside the upper freezer compartment 27C, the lower freezer compartment 27D and the ice making compartment 27E, for example, a small freezer compartment, a freezer compartment container for storing frozen storage, and a guide rail for moving the freezer compartment container in the depth direction are provided. , etc. are provided.
The front surfaces of the upper freezer compartment 27C, the lower freezer compartment 27D and the icemaker 27E are covered with drawer-type upper freezer compartment doors 11C, lower freezer compartment doors 11D and icemaker doors 11E so as to be able to be opened and closed.
A heat insulating material is arranged inside the upper freezer compartment door 11C, the lower freezer compartment door 11D and the ice making compartment door 11E. At the outer edges of the inner surfaces of the upper freezer compartment door 11C, the lower freezer compartment door 11D, and the icemaker door 11E, the front surface of the inner box that forms the front openings of the upper freezer compartment 27C, the lower freezer compartment 27D, and the icemaker compartment 27E. Abutting gaskets are provided respectively.
When the upper freezer compartment door 11C, the lower freezer compartment door 11D and the icemaker door 11E are closed, the openings of the upper freezer compartment 27C, the lower freezer compartment 27D and the icemaker compartment 27E are adiabatically closed.
A freezer compartment container is connected to the inner surface side of the upper freezer compartment door 11C, the lower freezer compartment door 11D, and the ice making compartment door 11E. The upper freezer compartment door 11C and the lower freezer compartment door 11D are movable in the depth direction together with the freezer compartment container along the guide rail on which the freezer compartment container is placed.

The configuration of each refrigerator compartment 27 and each door 11 described above is an example, and is not limited to the above example.

Left and right refrigerator compartment doors 12 and 13 shown in FIG. 1 have a surface facing the user and an inner surface on the refrigerator compartment 27A side when viewed from the front of the refrigerator 1 in a closed state.
Three door storage cases 56A, 56B, and 56C are arranged vertically on the inner surface side of the refrigerator compartment door 12 . Three door storage cases 54A, 54B, and 54C are arranged vertically on the inner surface side of the refrigerator compartment door 13 .

Each of the door storage cases 56A to 56C provided on the refrigerating compartment door 12 of the present embodiment is designed to rotate the refrigerating compartment door 12 when opening and closing the refrigerating compartment door 12 by rotating it around the rotation axis OL of each hinge 32. In order to avoid interference with the surroundings due to the trajectory, a part is cut away, and the shape is asymmetrical in the width direction (X direction).

Each of the door storage cases 56A to 56C has a notch 3 on one side in the width direction and on the side facing the user when the door is rotated. The notch 3 is formed by cutting one corner of a rectangular shape, for example, when the door housing cases 56A to 56C are viewed from above (+Z direction). When the refrigerating compartment door 12 is closed, the cutout portions 3 of the door accommodating cases 56A to 56C of the refrigerating compartment door 12 are aligned with the door accommodating cases 54A to 54C of the refrigerating compartment door 13 in the width direction (X direction). opposite.

In this embodiment, the door housing cases 56A to 56C having the notch 3 only on the left refrigerating compartment door 12 side are installed, but the door housing cases 56A to 56C having the notch 3 also on the right refrigerating compartment door 13 side are installed. Cases 54A-54C may be installed.

Inside the refrigerator compartment door 13 on the right side, an upper door housing case 54A, a middle door housing case 54B, and a lower door housing case 54C are provided in this order from the top. These three door storage cases 54A, 54B, and 54C are arranged vertically at a predetermined distance from each other, and may be detachably attached to the inner surface of the refrigerator compartment door 13, or may be fixed. good too.

Inside the left refrigerator compartment door 12, there are a lower door storage case 56C located at the bottom of the refrigerator compartment door 12, a middle door storage case 56B located above the lower door storage case 56C, and a middle door storage case. An upper door storage case 56A located above 56B and on the uppermost side of the refrigerating compartment door 12 is provided. These three door storage cases 56A, 56B, 56C are arranged with a predetermined distance from each other in the vertical direction.

Of these, the upper door housing case 56A and the middle door housing case 56B are attached to the inner surface of the refrigerator compartment door 12 so as to be removable and vertically movable.
The lower door storage case 56C may be detachably attached to the inner surface of the refrigerator compartment door 12, or may be fixed.

As described above, in the refrigerator compartment door 12 of the present embodiment, the vertical arrangement positions of the upper door storage case 56A and the middle door storage case 56B can be changed in multiple stages within their respective movement ranges.
The movement pitch and movement range of the upper door storage case 56A and the middle door storage case 56B are set so that the relative arrangement positions when moved can be optimized according to the height of the stored items.

In the case of the refrigerator 1 with French-style doors, since the refrigerating chamber doors 12 and 13 have different widths, door storage cases (door containers) 56A to 56C installed on one refrigerating chamber door 12 and the other refrigerating chamber door 13 are provided. The width dimensions of the door storage cases 54A to 54C installed in . Since the door storage case 56 installed on the narrow refrigerating compartment door 12 side is smaller in size than the door accommodating cases 54A to 54C installed on the wide refrigerating compartment door 13 side, the number of items that can be accommodated and The weight is also less than that of the door storage cases 54A to 54C, and is less likely to be heavy. For this reason, in this embodiment, the door storage cases 56A to 56C installed on the side of the refrigerating compartment door 12 having a narrow width are configured to be vertically movable.

[1. Refrigerator door]
Next, the detailed configuration of the refrigerator compartment doors 12 and 13 will be described.
As shown in FIG. 1, the left refrigerator compartment door 12 includes, for example, an outer shell member 50A and a gasket 55A. The outer shell member 50A is formed in a box shape. The term "box-like" as used herein includes a flat box-like shape. 50 A of outer shell members have 51 A of frames, 52 A of surface plates, and 53 A of inner surface members, for example.

The refrigerator compartment door 13 includes, for example, an outer shell member 50B and a gasket 55B. The outer shell member 50A is formed in a box shape. The outer shell member 50B has, for example, a frame 51B, a surface plate 52B and an inner surface member 53B.

In the following description, the left refrigerator compartment door 12 will be mainly described.
FIG. 2 is a perspective view showing the left refrigerating compartment door 12 in one embodiment.
As shown in FIG. 2, the outer shell member 50A of the refrigerating compartment door 12 has the frame 51A, the surface plate 52A and the inner surface member 53A, as described above.

As shown in FIG. 2, the frame bodies 51A are each formed in a rectangular frame shape with a predetermined width dimension.
The frame 51A includes an upper member 51a, a lower member 51b, and side members 51c and 51d. When the refrigerator compartment door 12 is closed, the upper side member 51 a has a plate shape extending in the width direction and the depth direction, and forms the upper surface of the refrigerator compartment door 12 . The lower side member 51b has a plate shape extending in the width direction and the depth direction, and forms the lower surface of the refrigerator compartment door 12. As shown in FIG. Further, the side members 51c and 51d are plate-shaped along the vertical direction and the depth direction, and form the left and right side surfaces of the refrigerating compartment door 12, respectively. A rectangular frame 51A is formed by combining the upper side member 51a, the lower side member 51b, and the side side members 51c and 51d. The frame 51A is made of synthetic resin, for example.

As shown in FIG. 2, the lower side member 51b of the refrigerating compartment door 12 is formed with a recessed groove 8 that is recessed upward (+Z direction). Groove 8 is formed on the side closer to refrigerating chamber door 13 when refrigerating chamber door 12 is closed. The groove portion 8 is a place where the user puts his or her hand when opening the refrigerating compartment door 12 .

As shown in FIG. 1, the refrigerating compartment door 13 also has a recessed groove 8 that is recessed upward in the lower side member 51b thereof. Groove 8 is formed on the side closer to refrigerating chamber door 12 when refrigerating chamber door 13 is closed.

52 A of surface plates are attached so that the opening of the front side of 51 A of frames may be block|closed, and are located in the front-end part of the refrigerator compartment door 12, respectively. 52 A of surface plates are rectangular-shaped board members along 51 A of frame bodies, and each form the front surface of the refrigerator compartment door 12. As shown in FIG. The surface plate 52A is, for example, a glass plate. However, the surface plate 52A is not limited to a glass plate, and may be made of synthetic resin or other material.
The surface plate 52A may be a flat plate or a curved plate. An example in which the surface plate 52A is a flat plate will be described below.

53 A of inner surface members are attached to 51 A of frames from the opposite side to 52 A of surface plates, and are located in the inner surface side of the refrigerator compartment door 12, respectively. The outer shape of the inner surface member 53A is a rectangular plate member along the frame 51A. The inner member 53A is made of synthetic resin, for example.
The inner member 53A has a planar inner surface 53a facing the refrigerating chamber 27A when the refrigerating chamber door 12 is closed with respect to the housing 10, and a planar inner surface 53a facing the refrigerating chamber 27A, and extending from the outer peripheral edge of the inner surface 53a to the refrigerating chamber 27A side. and a pair of ribs 61 projecting toward.

Ribs 61 are provided mainly to prevent cold air in refrigerator compartment 27</b>A from escaping through the gap between refrigerator compartment door 12 and housing 10 .
In this specification, the term "rib" is used for convenience of explanation, and broadly means a portion protruding from the inner surface member 53A toward the refrigerator compartment 27A (+Y direction) when the refrigerator compartment door 12 is closed. However, it is not limited to a specific shape or action.

Although not particularly shown, the space between the inner surface member 53A and the surface plate 52A and the inside of the convex shape of the rib 61 are filled with a foam heat insulating material.

The gasket 55A shown in FIG. 3 seals the refrigerating chamber 27A so that cold air in the refrigerating chamber 27A does not leak to the outside from between the refrigerating chamber door 12 and the housing 10 when the refrigerating chamber door 12 is closed. provided to stop it.

The gasket 55A is attached to the inner surface member 53A in a ring shape surrounding the outer periphery of the frame 51A. How to attach the gasket 55A is not particularly limited. For example, the gasket 55A may be attached by concave-convex fitting between an attachment projection provided on the gasket 55A and an attachment recess provided on the inner surface member 53A.

[1-1. Inner surface member]
Here, the detailed configuration of the inner surface member 53A will be described.
FIG. 3 is a perspective view showing the detailed configuration of the inner surface member 53A of the left refrigerating compartment door 12. As shown in FIG.
As shown in FIG. 3, the ribs 61 provided on the inner surface member 53A of the refrigerating compartment door 12 include, for example, an annular rib group slightly smaller than the outer shape of the frame 51A. The term “annular” as used herein is not limited to the case where the entire circumference is completely continuous, but also includes the case where a notch is provided and a portion is interrupted.

The annular rib group in the rib 61 includes an upper rib 61F extending in the width direction along the upper side member 51a, a lower rib 61G extending in the width direction along the lower side member 51b, and a side member 51c on one side in the width direction. and a side rib (wall portion) 61C extending vertically along the side member 51d on the other side in the width direction. The widthwise lengths of the upper rib 61F and the lower rib 61G are equal to each other. The lengths of the side ribs 61C and 61D in the vertical direction are equal to each other.

The side ribs 61C, 61D and the lower rib 61G protrude farther toward the refrigerator compartment 27A (+Y direction) than the upper rib 61F. For example, the lateral ribs 61C, 61D and the lower rib 61G protrude more than half the protruding amount of the upper rib 61F.

As shown in FIG. 3, the pair of side ribs 61C and 61D protrude in the +Y direction from both ends of the inner surface 53a in the X direction in the width direction toward the refrigerator compartment 27A (rearward). These pair of side ribs 61C and 61D extend vertically from the upper rib 61F to the position of the lower rib 61G.

The side rib 61D has a first tip portion 61a and a second tip portion 61b with different protrusion heights in the +Y direction, and a stepped portion 61c formed therebetween. and, the rib tip side is formed.

As shown in FIG. 3, of the side ribs 61C and 61D, the side surfaces S1 and S2 facing each other in the width direction are planes substantially perpendicular to the inner surface 53a of the inner surface member 53A. A side surface S1 of the side rib 61C faces the -X direction and faces the other side rib 61D. A side surface S2 of the side rib 61D faces the +X direction and faces one side rib 61C.

The side surfaces S1 and S2 each have an inclined surface Sa on the lower end side thereof. The inclined surfaces Sa provided on the side surfaces S1 and S2 are inclined in a direction in which the inclined surfaces Sa approach each other as they go downward, and the thickness of the side ribs 61C and 61D on the lower end side increases.

A step portion 53c, a rail portion (extending portion) 64, and a locking projection 65 are provided on side surfaces S1 and S2 of the side ribs 61C and 61D, respectively. The step portion 53c and the rail portion 64 extend vertically. The locking projection 65 is positioned below the stepped portion 53c and the rail portion 64 with a gap therebetween in the vertical direction.

A stepped portion 53c provided on one side rib 61C protrudes in the -X direction from the side surface S1 toward the other side rib 61D and extends in the vertical direction. A stepped portion 53c provided on the other side rib 61D protrudes in the +X direction from the side surface S2 toward the one side rib 61C and extends in the vertical direction. Of the stepped portions 53c provided on the side ribs 61C and 61D, the end faces 53cx facing each other in the X direction are substantially parallel to the side faces S1 and S2. In addition, the end surface 53cy of each stepped portion 53c and facing the +Y direction is substantially parallel to the inner surface 53a. In FIG. 3, only the end faces 53cx and 53cy of the rib 61C are shown, and the end faces 53cx and 53cy of the rib 61D are omitted.

The projection height in the X direction from the side surfaces S1 and S2 of each stepped portion 53c is not particularly limited. For example, the X-direction projection height of each stepped portion 53c from the side surfaces S1 and S2 may slightly exceed the X-direction projection height of the rail portion 64, which will be described later. In this case, the X-direction end surface 53cx of the stepped portion 53c approaches the X-direction side surfaces of the upper door housing case 56A and the middle door housing case 56B, which will be described later, and extends in the width direction of the upper door housing case 56A and the middle door housing case 56B. It can function as a guide surface.

As shown in FIG. 3, the rail portion 64 extends vertically in parallel with the end surface 53cy of the stepped portion 53c with a gap in the Y direction between the rail portion 64 and the end surface 53cy. A gap G1 is formed between the upper end of the rail portion 64 and the lower surface 61g (FIG. 2) of the upper rib 61F. The upper end of the stepped portion 53c is connected to the lower surface 61g (FIG. 2) of the upper rib 61F. The lower end of the step portion 53c is equal to the lower end position of the rail portion 64, which will be described later.

The rail portions 64 provided on the side ribs 61C and 61D have the same structure. As shown in FIG. 3, the rail portion 64 provided on the side rib 61C is a protrusion that protrudes vertically in the -X direction from the side surface S1 of the side rib 61C and extends linearly in the vertical direction as a whole. As shown in FIG. 3, the rail portion 64 provided on the side rib 61D is a protrusion that vertically protrudes in the +X direction from the side surface S2 of the side rib 61D and extends linearly in the vertical direction as a whole.

The pair of rail portions 64 on both sides in the width direction are arranged to move the upper door storage case 56A and the middle door storage case 56B, which will be described later, in the vertical direction while restricting the position in the depth direction (Y direction). 56A and the middle door storage case 56B are guided vertically.

The upper end of each rail portion 64 does not reach the upper ends of the side ribs 61C and 61D, and is positioned downwardly away from the upper ends of the side ribs 61C and 61D.
The lower end of the rail portion 64 extends to substantially the same position as the stepped portion 53c.

The rail portion 64 has a first rail portion 64a and a second rail portion 64b.
The first rail portion 64a guides the vertical movement of the upper door housing case 56A and the middle door housing case 56B, which will be described later, and also allows the upper door housing case 56A and the middle door housing case 56B to move vertically. regulate in stages.
The first rail portion 64a has a first guide 64c, a second guide 64d, a plurality of locking plates 64e, an upper end plate 64g, a lower end plate 64k, and a plurality of inclined ribs 64fa.

The first guide 64c forms a side surface of the rail portion 64 in the -Y direction (inner surface 53a). The first guide 64c has a flat plate shape that protrudes in the -X direction from each of the side surfaces S1 and S2 and extends in the vertical direction. The first guide 64c extends up to the second rail portion 64b.

The second guide 64d forms a side surface of the rail portion 64 in the +Y direction (the refrigerator compartment 27A side). The second guide 64d has a flat plate shape that protrudes from the side surface S in the -X direction and extends in the vertical direction. The second guide 64d is parallel to the first guide 64c. The second guide 64d, like the first guide 64c, extends to the second rail portion 64b.
The ends of the first guide 64c and the second guide 64d in the -X direction are located on the same plane orthogonal to the depth direction.

A plurality of locking plates 64e in the rail portion 64 extend in the depth direction (Y direction) between the first guide 64c and the second guide 64d, and vertically protrude from the side surfaces S1 and S2 in the -X direction. shape. The plurality of locking plates 64e are vertically spaced apart from each other from the lower ends of the first and second guides 64c and 64d to the upper end of the first rail portion 64a. Although the vertical pitch of each locking plate 64e may not be constant, it is constant in the example shown in FIG.

In the example shown in FIG. 3, 17 locking plates 64e are arranged.
The tip of each locking plate 64e in the protruding direction is positioned on the same plane as the tips of the first guide 64c and the second guide 64d positioned on both sides in the width direction of each locking plate 64e.

The upper end plate 64g of the rail portion 64 has a plate shape extending in the depth direction (Y direction) between the first guide 64c and the second guide 64d and protruding vertically from the side surfaces S1 and S2. The upper end plate 64g is located above the plurality of locking plates 64e and is spaced upward from the uppermost locking plate 64e at a pitch substantially equal to the pitch between the locking plates 64e.

The lower end plate 64k extends in the depth direction (Y direction) between the first guide 64c and the second guide 64d, and has a plate shape that vertically protrudes from the side surfaces S1 and S2. The lower end plate 64k is located below the lowermost locking plate 64e, and is spaced downward from the lowermost locking plate 64e by an interval wider than the pitch between the locking plates 64e.

A plurality of inclined ribs 64fa are provided on the lower surface side of each locking plate 64e except for the lower end plate 64k and on the lower surface side of the upper end plate 64g. A pair of inclined ribs 64fa are provided on the lower surface of each locking plate 64e and the lower surface of the upper end plate 64g, respectively, and are spaced apart from each other in the depth direction (Y direction). Further, each inclined rib 64fa is also spaced apart in the depth direction (Y direction) from the first guide 64c and the second guide 64d.

The inclined rib 64fa has a plate shape parallel to the first guide 64c and the second guide 64d.
The shape of each inclined rib 64fa when viewed from the Y direction is a triangular shape gradually inclined toward side surfaces S1 and S2 as it proceeds downward from the tip of each projecting side in the X direction of each locking plate 64e and upper end plate 64g. The lower end of each inclined rib 64fa is located in the middle of the pitch between the locking plates 64e.

In this embodiment, the number of inclined ribs 64fa provided on the lower surface of the same locking plate 64e or upper end plate 64g is two, but the number of inclined ribs 64fa is not limited to this. For example, the number in the depth direction of the inclined ribs 64fa provided on the lower surface of the same member is not particularly limited as long as it is one or more.

With such a configuration, inside the first rail portion 64a, a plurality of protrusions 64m are vertically arranged at substantially equal intervals from the bottom to the top. The plurality of protrusions 64m are formed by an inclined surface 64j formed by an inclined rib 64fa, a tip surface of a locking plate 64e, and a horizontally extending locking surface 64i which is the upper surface of the locking plate 64e.

Relative concave portions 64n are formed between the convex portions 64m projecting in the X direction from the side surfaces S1 and S2. For this reason, a sawtooth-shaped concave-convex structure is formed inside the first rail portion 64a in which the inclined surfaces 64j of the inclined ribs 64fa face downward.

The first locking portions 70 of the door storage cases 56A and 56B are locked to the uneven structure of the rail portion 64 as described above. That is, the first locking portion 70 of the door housing case is locked to the side of each locking surface 64i of the plurality of locking plates 64e. The slanted surfaces 64j of the plurality of slanted ribs 64fa are slanted so as to protrude upward toward the center of the door. Therefore, when the door housing cases 56A and 56B are raised, the first locking portion 70, which will be described later, moves along the inclined surface 64j of the inclined rib 64fa and is pressed horizontally and pulled in.

The locking surface 64i of the locking plate 64e may be flat or curved as long as the locking member 73, which will be described later, can be locked. The contact form of the portion of the locking surface 64i that is locked by the locking member 73 may be surface contact, line contact, or point contact as long as the locking member 73 can be locked.
The inclined surface of the inclined rib 64fa may be a flat surface or a curved surface as long as a locking member 73, which will be described later, can slide. The contact form of the portion where the locking member 73 slides on the plurality of inclined surfaces may be surface contact, line contact, or point contact as long as the locking member 73 can slide.

The second rail portion 64b continues to the upper end of the first rail portion 64a. The second rail portion 64b is composed of a third guide 64h1 continuous with the upper ends of the first guide 64c and the second guide 64d, and an intermediate rib 64h2 provided between the third guides 64h1.

The third guide 64h1 and the intermediate rib 64h2 are flat plate-shaped parallel to the first guide 64c and the second guide 64d.
The vertical length of the intermediate rib 64h2 is equal to the length from the upper end plate 64g to the upper end of the third guide 64h1. The lower end of the intermediate rib 64h2 is connected to the upper surface of the upper end plate 64g. The protrusion height of the intermediate rib 64h2 in the -X direction is equal to the protrusion height of the first guide 64c and the second guide 64d in the same direction.
The number of intermediate ribs 64h2 is not particularly limited as long as it is one or more. In the example shown in FIG. 3, there is one intermediate rib 64h2.

Vertically extending stopper insertion grooves g1 and g2 are formed in the side ribs 61C and 61D, respectively, between the rail portion 64 and the end surface 53cy of the stepped portion 53c.
A stopper insertion groove g1 formed in the side rib 61D located on the rotation axis OL side of the refrigerator compartment door 12 has a constant groove width over the vertical direction of the rail portion 64 . On the other hand, the groove width of the stopper insertion groove g2 formed on the side rib 61C side is partially narrowed due to the presence of the protrusion P. The stopper insertion groove g2 has a portion g21 where the distance between the projection P and the rail portion 64 is the narrowest in the depth direction (Y direction).

A lowered position restricting portion 53d is provided between the lower end portion of the rail portion 64 and the stepped portion 53c. The lowered position restricting portion 53d is provided to restrict the lowered position of the middle door storage case 56B.

The shape of the lowered position restricting portion 53d is not particularly limited as long as it can restrict the lowered position of the middle door storage case 56B by protruding into the stopper insertion groove g1. In the example shown in FIG. 3, the lowered position restricting portion 53d connects the first guide 64c of the rail portion 64 and the end surface 53cy of the stepped portion 53c in the Y direction, and closes the stopper insertion groove g1 from below.

The vertical arrangement position of the lowering position restricting portion 53d is an appropriate position corresponding to the lowermost position of the middle door storage case 56B.
A pair of inclined ribs 64fb are provided on the lower surface side of the lowered position restricting portion 53d. The pair of inclined ribs 64fb are one size larger than the above-described inclined ribs 64fa, and also serve to reinforce the lowered position restricting portion 53d.

The locking projection 65 is provided for fixing or detachably locking the lower door storage case 56C shown in FIG. The shape of the locking projection 65 is not particularly limited as long as it can detachably lock the lower door storage case 56C.

In the example shown in FIG. 3, each locking projection 65 provided on the lower end side of each of the side ribs 61C and 61D has a substantially rectangular shape elongated in the vertical direction when viewed from the X direction. The locking protrusion 65 has approximately the same width as the rail portion 64 in the depth direction (Y direction), and is arranged at a position spaced downward from the rail portion 64 directly below the rail portion 64 . A gap G2 is formed between the lower end of the rail portion 64 and the upper end of the locking projection 65 .

As shown in FIG. 3, the locking projection 65 provided on the side rib 61C is formed on the lower end side of the side surface S1 and protrudes in the -X direction. The locking projection 65 provided on the side rib 61D is formed on the lower end side of the side surface S2 and protrudes in the +X direction.
The protruding end surfaces of the locking projections 65 are positioned on the same plane perpendicular to the depth direction.

The lower rib 61G connects the lower end sides of the side ribs 61C and 61D. The lower rib 61G has an upper surface 61f that slopes downward toward the refrigerator compartment 27A.

[2. Door storage case]
Next, a detailed configuration of the door storage case will be described.
As shown in FIGS. 1 and 2, among the three door storage cases 56 installed on the refrigerating compartment door 12, the upper door storage case 56A and the middle door storage case 56B have the side ribs 61C shown in FIG. Between 61D, it can each move vertically along a pair of rail portions 64 facing each other.

The width, depth, and depth of the upper door housing case 56A and the middle door housing case 56B may be different from each other, but in this embodiment, the upper door housing cases 56A and 56B have the same shape.

The lower door housing case 56C can be mounted in a space directly below the middle door housing case 56B and sandwiched between the lateral ribs 61C and 61D.
The lower door housing case 56C can be detachably arranged on the lower rib 61G by engaging with a pair of engaging projections 65 shown in FIG. However, the arrangement position of the lower door storage case 56C at the time of attachment is fixed in the vertical direction. That is, the lower door housing case 56C cannot move up and down.

FIG. 4 is a perspective view showing the configuration of the door storage case 56A (56B). FIG. 5 is an exploded view showing the configuration of the door storage case 56A (56B).

In the following description, an example of the upper door storage case 56A will be described. The description of the upper door storage case 56A also applies to the middle door storage case 56B, except for the difference in location.

As shown in FIG. 4, the upper door storage case 56A is a box-shaped container that opens upward as a whole. The upper door storage case 56A has a case main body 57 and a lift table 67, respectively. The upper door storage case 56A has an asymmetrical shape in the width direction.

The case main body 57 accommodates the goods stored in the refrigerator compartment 27A shown in FIG. The case main body 57 is a box-shaped container that opens upward as shown in FIG.

The lifting platform 67 detachably supports the case body 57 and is vertically movable along the rails 64 between the side ribs 61C and 61D while supporting the case body 57 . The vertical position of the lift table 67 is fixed by engaging with one of a plurality of engaging plates 64e provided on the pair of rail portions 64 shown in FIG.

(2-1. Case body)
As shown in FIG. 4, the case body 57 includes a bottom surface portion 57a, a front wall portion 57b, a rear wall portion 57c, a first wall portion 57dL, a second wall portion 57dR, a first flat plate portion 57eL, It has a second flat plate portion 57eR, a third wall portion 57m, and a notch wall portion 57k.

The bottom surface portion 57a is in the shape of a flat plate arranged horizontally. The width of the bottom portion 57a in the lateral width direction (X direction) is narrower on the −Y direction side than on the +Y direction side than substantially at the center in the depth direction (Y direction). Of the bottom surface portion 57a, the −Y direction side of the approximate center in the depth direction (Y direction) is defined as a “narrow width portion”, and the +Y direction side is defined as a “wide width portion”.

The front wall portion 57b extends in the +Z direction and the −Z direction from the +Y direction outer edge of the bottom surface portion 57a.

The rear wall portion 57c is located on the side opposite to the front wall portion 57b in the depth direction of the case body 57 . The rear wall portion 57c extends only in the +Z direction from the −Y direction outer edge of the bottom surface portion 57a.

The first wall portion 57dL is connected to the end of the rear wall portion 57c on the -X direction side. The first wall portion 57dL extends in the +Z direction from the −X direction outer edge of the “narrow portion” of the bottom surface portion 57a. The first wall portion 57dL has a flat plate shape that stands perpendicular to the bottom surface portion 57a and is parallel to the depth direction (Y direction). The first wall portion 57dL extends only in the +Z direction from the −X direction outer edge of the bottom surface portion 57a.

The second wall portion 57dR is connected to the +X direction side end of the rear wall portion 57c. The second wall portion 57dR extends in the +Z direction from the +X direction outer edge of the “narrow portion” of the bottom surface portion 57a. The second wall portion 57dR has a flat plate shape that stands perpendicular to the bottom surface portion 57a and parallel to the depth direction (Y direction). The second wall portion 57dR extends only in the +Z direction from the +X direction outer edge of the bottom surface portion 57a.

The first flat plate portion 57eL is connected to the +Y direction end of the first wall portion 57dL. The first flat plate portion 57eL has a flat plate shape parallel to the width direction, and is formed at an edge formed in the width direction (−X direction) by reducing the width of the bottom surface portion 57a. The first flat plate portion 57eL extends in the +Z direction from an edge formed in the lateral width direction (−X direction) by reducing the width of the bottom surface portion 57a, and stands vertically with respect to the bottom surface portion 57a. The first flat plate portion 57eL is positioned in the -X direction from the first wall portion 57dL.

The second flat plate portion 57eR is connected to the -Y direction end of the first wall portion 57dL. The second flat plate portion 57eR has a flat plate shape parallel to the width direction, and is formed at an edge formed in the width direction (+X direction) by the reduced width of the bottom surface portion 57a. The second flat plate portion 57eR extends in the +Z direction from an edge formed in the lateral width direction (+X direction) by reducing the width of the bottom surface portion 57a, and stands vertically with respect to the bottom surface portion 57a. The second flat plate portion 57eR is positioned in the +X direction from the second wall portion 57dR.

The first wall portion 57f is the outer edge in the −X direction of the bottom portion 57a and extends in the +Z direction and the −Z direction from the “wide portion” of the bottom portion 57a. The −Y direction side of the first wall portion 57f is connected to the −X direction end portion of the first flat plate portion 57eL. The first wall portion 57f has a flat plate shape extending in the depth direction and is slightly inclined inward in the width direction (+X direction side). The +Y direction end of the first wall portion 57f is connected to the -X direction end of the front wall portion 57b.

The third wall portion 57m is the outer edge of the bottom portion 57a in the +X direction and extends in the +Z direction and the −Z direction from the “wide portion” of the bottom portion 57a. The −Y direction side of the third wall portion 57m is connected to the +X direction end portion of the second flat plate portion 57eR. The third wall portion 57m has a flat plate shape extending in the depth direction (Y direction) and is slightly inclined inward (−X direction side) in the width direction.

The cutout wall portion 57k is an outer edge portion in the +X direction of the bottom surface portion 57a, and extends in the +Z direction and the −Z direction from the inclined edge on the +Y direction side. The cutout wall portion 57k is connected to the +Y direction end of the third wall portion 57m. The cutout wall portion 57k is inclined more inward in the width direction (−X direction side) than the third wall portion 57m. The +Y direction end of the cutout wall portion 57k is connected to the −X direction end of the front wall portion 57b.

Specifically, the cutout wall portion 57k is inclined toward the front wall portion 57b side (−X direction) in the +Y direction from the third wall portion 57m, so that the third wall portion 57m and the front wall portion 57b are inclined. Connected diagonally. The connection position between the cutout wall portion 57k and the front wall portion 57b is located in the -X direction from the position of the second wall portion 57dR in the lateral width direction.

Among the first wall portion 57f, the third wall portion 57m, the cutout wall portion 57k, and the front wall portion 57b, a portion 57u extending in the +Z direction from the bottom surface portion 57a and a portion 57u extending in the −Z direction from the bottom surface portion 57a and a portion 57s. The length of the portion 57s extending in the -Z direction is such that the bottom plate portion 58B of the lift table 67, which will be described later, is covered from the outside.

In this manner, the outer peripheral wall of the case body 57 is constructed.
The case main body 57 is configured to partially have a flange on the upper end side.

A flange portion 57gR extending outward (+X direction) of the case main body 57 in the width direction is formed at the upper ends of the second wall portion 57dR and the second flat plate portion 57eR.
A locking projection 57j that protrudes outward (+X direction) from the second wall portion 57dR and extends downward (−Z direction) from the flange portion 57gR is formed on the lower surface side of the flange portion 57gR. The locking projections 57j are used to position the case body 57 in the depth direction when it is attached to the lift table 67. As shown in FIG.

A flange portion 57gL extending outward (−X direction) of the case main body 57 in the width direction is formed at the upper ends of the first wall portion 57dL and the first flat plate portion 57eL.
A locking projection 57j that protrudes outward (+X direction) from the first wall portion 57dL and extends downward (−Z direction) from the flange portion 57gR is formed on the lower surface side of the flange portion 57gL.

In this embodiment, the pair of locking projections 57j provided in the width direction of the case main body 57 are formed at positions facing the rail portion 64 shown in FIG. It is However, the projection height of each locking projection 57j is such that the distance between the pair of locking projections 57j in the lateral width direction (X direction) is the distance between the rail portions 64 provided on the side ribs 61C and 61D shown in FIG. The height is slightly narrower than the widthwise spacing between them. Therefore, when the upper door storage case 56A is attached and moved in the vertical direction, there is no possibility that the locking projections 57j will come into contact with the pair of rail portions 64 in the width direction.

A flange portion 57h extending outward (-Y direction) of the case body 57 is formed at the upper end of the rear wall portion 57c. The flange portion 57h is continuous with the flange portions 57gR and 57gL. The height and thickness of the flange portion 57h are the same as those of the flange portions 57gR and 57gL. A ridge 57i extending in the lateral width direction protrudes upward (+Z direction) from the flange portion 57h.

The case main body 57 is made of synthetic resin, for example. The case body 57 may be made of a transparent material, or may be made of a translucent or opaque material. It is more preferable to form the case main body 57 from a transparent material or a translucent material, since the inside of the case main body 57 can be seen from the outside. A portion of the case body 57 may be made of a transparent material and the other may be made of a translucent or opaque material. The portion formed of a translucent material or an opaque material may be a portion that covers the lift table 67 described later from above or from the outside. In this case, the lift table 67 is difficult to see from above or from the outside, so the appearance of the upper door storage case 56A is improved.

Further, the case main body 57 may be formed with an opaque or translucent colored layer, pattern, or the like on the surface of a molded product made of a transparent material. In this case, the part formed with the opaque or translucent colored layer and the pattern becomes difficult to see from the outside, and the appearance of the upper door housing case 56A is improved.

(2-2. Lifting table)
FIG. 6 is a perspective view of the boarding platform main body 58 as seen obliquely from the rear. FIG. 7 is a side view of the main body of the platform when viewed from the +X direction side. FIG. 8 is a side view of the main body of the platform when viewed from the -X direction side. 1 to 5 will be referred to as appropriate in the following description.

As shown in FIG. 5, the lift table 67 has all the constituent members of the upper door housing case 56A except for the case body 57. As shown in FIG.
The elevator platform 67 includes, for example, an elevator platform main body 58, an unlocking mechanism 80, a lower cover 60, and a first locking portion 70, as shown in FIG. Similar to the case body 57, the shape of the lifting table 67 when viewed from above (+Z direction) is asymmetrical in the width direction (X direction).

(Elevating platform body)
As shown in FIGS. 5 and 6, the platform main body 58 includes a bottom surface portion 58a, a peripheral wall portion 58A extending in the +Z direction and the −Z direction from the outer peripheral edge of the bottom surface portion 58a, and a −Z direction extending from the outer peripheral edge of the bottom surface portion 58a. and a bottom plate portion 58B extending in the direction.

The bottom surface portion 58a constitutes the bottom portion of the elevator main body 58. As shown in FIG. The bottom surface portion 58a is a flat plate having a size and shape that is horizontally disposed and that allows the bottom surface portion 57a of the case body 57 to be superimposed on the top surface. The outer shape of the bottom portion 58a has substantially the same shape as the outer shape of the bottom portion 57a of the case main body 57, and the width of the bottom portion 58a in the width direction (X direction) is -Y from the approximate center in the depth direction (Y direction). On the direction side, it is narrower than on the +Y direction side. As shown in FIG. 6, the outer shape of the bottom surface portion 58a when viewed from below in the -Z direction is asymmetrical in the width direction (X direction).

The peripheral wall portion 58</b>A constitutes the peripheral wall of the platform main body 58 . The peripheral wall portion 58A includes a rear wall portion 58c extending in the +Z direction and the −Z direction from the outer peripheral edge of the bottom surface portion 58a, a first wall portion 58dL, a second wall portion 58dR, and a pair of flat plate portions 58eL and 58eR. have.

The rear wall portion 58c is behind the bottom surface portion 58a (-Y direction) and extends in the +Z direction from the outer peripheral end of the bottom surface portion 58a on the -Y direction side. The rear wall portion 58 c constitutes the back plate portion of the lift table 67 . A first wall portion 58dL and a second wall portion 58dR extending forward (+Y direction) from each end are connected to both sides of the rear wall portion 58c in the width direction. The height of the rear wall portion 58c in the +Z direction is the same as the height of the second wall portion 58dR and the first wall portion 58dL in the +Z direction.

The first wall portion 58dL is the outer peripheral end in the −X direction of the bottom portion 58a and extends in the +Z direction from a narrow portion on the −Y direction side of the bottom portion 58a. The first wall portion 58dL has a flat plate shape that stands perpendicular to the bottom surface portion 58a and is parallel to the depth direction (Y direction).

The first flat plate portion 58eL is connected to the +Y direction side of the first wall portion 58dL and extends in the -X direction from the first wall portion 58dL. The first flat plate portion 58eL has a flat plate shape parallel to the width direction. The first flat plate portion 58eL extends in the vertical direction at the edge formed in the lateral width direction due to the reduced width of the bottom surface portion 58a, and stands vertically with respect to the bottom surface portion 57a.

The second wall portion 58dR is an outer peripheral end in the +X direction of the bottom portion 58a and extends in the +Z direction from a narrow portion on the −Y direction side of the bottom portion 58a. The second wall portion 58dR has a flat plate shape that stands vertically with respect to the bottom surface portion 58a and is parallel to the depth direction (Y direction).

The second flat plate portion 58eR is connected to the -Y direction side of the second wall portion 58dR and extends in the +X direction from the second wall portion 58dR. The second flat plate portion 58eR has a flat plate shape parallel to the width direction. The second flat plate portion 58eR extends vertically at the edge formed in the lateral width direction by the reduced width of the bottom surface portion 58a, and stands vertically with respect to the bottom surface portion 57a.

Grooves 58j that open upward in the thickness direction are formed in the upper ends of the first wall portion 58dL and the second wall portion 58dR, respectively. As shown in FIGS. 4 and 5, a pair of locking projections 57j provided on both sides in the width direction of the case body 57 can enter into the pair of grooves 58j from above. are fitted in the longitudinal direction.

The peripheral wall portion 58A has a portion 58h extending in the +Z direction from the bottom surface portion 58a and a portion 58i extending in the -Z direction from the bottom surface portion 58a. The height of the portion 58h of the peripheral wall portion 58A that extends in the +Z direction from the bottom surface portion 58a is the height from the bottom surface of the bottom surface portion 57a of the case body 57 to the bottom surface of the flange portions 57gR, 57gL, and 57h of the case body 57. Almost equal. The height of the portion 58i of the peripheral wall portion 58A that extends in the −Z direction from the bottom portion 58a is a length that is hidden inside the portion 57s that extends in the −Z direction from the bottom portion 57a of the case body 57. FIG.

A flange portion 58g (FIG. 6) is partially formed on the upper end side of the peripheral wall portion 58A. The flange portion 58g is formed over the rear wall portion 58c, the first wall portion 58dL, the second wall portion 58dR, and the pair of flat plate portions 58eL and 58eR. are partially different.

The bottom plate portion 58B has a front end plate portion 58b extending in the -Z direction from the outer peripheral edge of the bottom plate portion 58a, a first plate portion 58f, a second plate portion 58m, and a notch plate portion 58x.

The front end plate portion 58b extends downward (−Z direction) from the edge of the bottom portion 58a in the +Y direction. The first plate portion 58f is the outer edge in the −X direction of the bottom portion 58a and extends in the −Z direction from the “wide portion” on the +Y direction side of the bottom portion 58a. The second plate portion 58m is the outer edge of the bottom portion 58a in the +X direction and extends in the −Z direction from the “wide portion” on the +Y direction side of the bottom portion 58a.

The cutout plate portion 58x extends in the −Z direction from the edge between the front end plate portion 58b and the second plate portion 58m of the outer peripheral edge of the bottom surface portion 58a. The notch plate portion 58x is inclined toward the front end plate portion 58b (-X direction side) along the +Y direction, and obliquely connects the second plate portion 58m and the front end plate portion 58b. The cutout plate portion 58x is parallel to the cutout wall portion 57k of the case main body 57 .

The lengths in the -Z direction of the front end plate portion 58b, the first plate portion 58f, the second plate portion 58m, and the notch plate portion 58x, which constitute the bottom plate portion 58B of the elevator main body 58, are as follows when the case main body 57 is mounted: A length that is hidden inside a portion 57s extending in the −Z direction from the bottom surface portion 57a of the first wall portion 57f, the third wall portion 57m, the cutout wall portion 57k, and the front wall portion 57b of the case body 57. .
That is, when viewed from the front (+Y direction), the bottom plate portion 58B of the platform main body 58 cannot be seen from the lower end side of the case main body 57 .

The lift table main body 58 having such a structure has a sill at the outer edge portion facing the front end plate portion 58b, the first plate portion 58f, the second plate portion 58m, and the cutout plate portion 58x among the outer peripheral ends of the case main body 57. , +Z direction is not formed. That is, when the case main body 57 is mounted and viewed from the horizontal direction, the front wall portion 57b, the notch wall portion 57k, the first wall portion 57f and the third wall portion 57m of the case main body 57 are included in the elevator main body 58. A side plate portion that overlaps with is not formed.

Therefore, when at least the front wall portion 57b, the cutout wall portion 57k, and the first wall portions 57f of the case body 57 are formed of a transparent material or a translucent material, these front wall portions Contents housed inside the case body 57 can be seen from the horizontal direction through the cutout wall portion 57k and the respective first wall portions 57f.

As shown in FIG. 6, the platform main body 58 of the present embodiment has first guide portions 58ER and 58EL, a second guide portion 58F, and a third guide portion 58G on both sides in the width direction. formed.

As shown in FIG. 7, the first wall portion 58dL is formed with a first guide portion 58EL, a second guide portion 58F, and a third guide portion 58G. It protrudes outward toward the direction and extends in the vertical direction (Z direction).

As shown in FIGS. 3 to 5, the first guide portion 58EL, the second guide portion 58F, and the third guide portion 58G sandwich the rail portion 64 on the side rib 61D side from both sides in the depth direction. , are spaced apart from each other in the depth direction (Y direction) so that the platform main body 58 can move in the vertical direction along the rail portion 64 . That is, the first guide portion 58EL, the second guide portion 58F, and the third guide portion 58G are spaced apart from each other in the depth direction to form a gap G5 that allows the rail portion 64 to be inserted therebetween. do.

As shown in FIG. 8, the second wall portion 58dR is formed with a first guide portion 58ER, a second guide portion 58F, and a third guide portion 58G. It protrudes outward and extends in the vertical direction (Z direction).

As shown in FIGS. 3 to 5, the first guide portion 58ER, the second guide portion 58F, and the third guide portion 58G sandwich the rail portion 64 on the side rib 61C side from both sides in the depth direction. , are spaced apart from each other in the depth direction (Y direction) so that the platform main body 58 can move in the vertical direction along the rail portion 64 . That is, the first guide portion 58ER, the second guide portion 58F, and the third guide portion 58G guide the vertical movement of the door storage cases 56A and 56B relative to the rail portion 64. As shown in FIG.

The distance between the first guide portion 58EL provided on the first wall portion 58dL, the second guide portion 58F and the third guide portion 58G shown in FIG. The distances between the first guide portion 58ER and the second guide portion 58F and the third guide portion 58G are equal to each other and correspond to the width of the rail portion 64 in the depth direction.

(locking protrusion)
As shown in FIG. 7, the first guide portion 58EL formed in the first wall portion 58dL has a stopper insertion groove g1 ( 3), and can move up and down in the stopper insertion groove g1.

As shown in FIG. 8, the first guide portion 58ER in the second wall portion 58dR has a stopper insertion groove g2 (FIG. 3) formed on the back side (−Y direction side) of the rail portion 64 on the side rib 61C side. and can move vertically in the stopper insertion groove g2.

The height of the pair of first guide portions 58EL and 58ER in the X direction is equal to the depth of the stopper insertion grooves g1 and g2 in the X direction, or slightly smaller than the depth of the stopper insertion grooves g1 and g2. Preferably. As a result, the first guide portions 58EL and 58ER are all inserted into the stopper insertion grooves g1 and g2.

In this embodiment, the groove width of the stopper insertion groove g2 on the side rib 61C side shown in FIG. 3 is partially different in the vertical direction. Therefore, the width W2 (FIG. 8) of the first guide portion 58ER inserted into the stopper insertion groove g2 in the depth direction corresponds to the width W1 (FIG. 8) of the first guide portion 58EL inserted into the stopper insertion groove g1 in the depth direction. 7) and is a width that can be inserted into the portion g21 that is the minimum width in the stopper insertion groove g2.

As shown in FIGS. 6 and 7, the first guide portion 58EL has a hollow prismatic shape and a rectangular cross-sectional shape that intersects the length direction. One side (−X side) of the first guide portion 58EL is open.
Specifically, the first guide portion 58EL includes a pair of plate-like portions 58Aa extending in the vertical direction perpendicular to the first wall portion 58dL and spaced apart in the depth direction, and a pair of plate-like portions 58Aa. It has a plurality of reinforcing ribs 58Ab perpendicular to the shaped portion 58Aa and a plurality of reinforcing ribs 58Ac arranged parallel to and between the pair of plate-shaped portions 58Aa. Of the pair of plate-like portions 58Aa, the plate-like portion 58Aa located on the +Y side faces the first guide 64c of the rail portion 64 on the side rib 61D side shown in FIG.

In the first guide portion 58EL, a plurality of protrusions projecting in the +Y direction from the surface of the plate-like portion 58Aa facing the first guide 64c of the rail portion 64 and extending in the width direction of the surface on the +Y direction side. 58s are formed. 58 s of these several protrusions are provided in order to reduce a contact area with the rail part 64 (1st guide 64c). A cross section orthogonal to the width direction of each of the plurality of ridges 58s is, for example, a semicircular shape convex in the +Y direction.

The first guide portion 58ER shown in FIG. 8 has a narrower width in the depth direction than the first guide portion 58EL shown in FIG. The first guide portion 58ER has a hollow prismatic shape, and has a trapezoidal cross-sectional shape that intersects the length direction. The first guide portion 58ER is open on two sides (-X side and -Y side).
Specifically, the first guide portion 58ER includes a plate-like portion 58Ba that extends in the vertical direction perpendicular to the second wall portion 58dR, and is positioned on the inner side (-Y direction) of the plate-like portion 58Ba, A plate-like portion 58Bd spaced apart from the plate-like portion 58Ba, a plurality of reinforcing ribs 58Bb perpendicular to the plate-like portions 58Ba and 58Bd, and the plate-like portions 58Ba and 58Bd and a plurality of reinforcing ribs 58Bc that are parallel and arranged therebetween.
The rear plate-like portion 58Bd has a smaller projecting height in the +X direction with respect to the second wall portion 58dR than the front plate-like portion 58Ba.
The plate-like portion 58Ba positioned on the +Y side of the first guide portion 58ER faces the first guide 64c of the rail portion 64 on the side rib 61C side shown in FIG.

Also in the first guide portion 58ER, on the +Y direction side surface of the plate-like portion 58Ba facing the first guide 64c of the rail portion 64, a plurality of protrusions projecting in the +Y direction from the surface and extending in the width direction of the surface are provided. 58s are formed. 58 s of these several protrusions are provided in order to reduce a contact area with the rail part 64 (1st guide 64c). A cross section orthogonal to the width direction of each of the plurality of ridges 58s is, for example, a semicircular shape convex in the +Y direction.

The vertical lengths of the first guide portions 58EL and 58ER are equal to each other, and are greater than the height H of the peripheral wall portion 58A of the platform main body 58 in the Z direction. The upper ends of the first guide portions 58EL and 58ER slightly protrude in the +Z direction from the upper ends of the peripheral wall portion 58A, and the lower ends protrude significantly in the -Z direction from the lower ends of the peripheral wall portion 58A and the bottom plate portion 58B.

Of the first guide portions 58EL and 58ER, the portion that protrudes in the -Z direction from the peripheral wall portion 58A and the bottom plate portion 58B regulates the vertical interval with the other door storage case (lower middle door storage case 56B). They function as gap regulation stoppers 58DR and 58DL, which will be described later. The length of downward extension (-Z direction) of each of the interval regulation stoppers 58DR and 58DL is, for example, within the range of 25 mm to 30 mm.

As shown in FIG. 12, the lengths of the first guide portions 58EL and 58ER in the vertical direction extend from the position where the raised ridge 57i of the upper door storage case 56A and the lower surface 61g of the upper rib 61F abut against the rail portion 64. is greater than the vertical distance of the gap G1 (hereinafter referred to as the gap distance L) to the upper end of the .

(Second guide section)
Each of the pair of second guide portions 58F has a hollow prismatic shape, and has a substantially square cross-sectional shape that intersects the length direction. Each of the second guide portions 58F is spaced apart in the +Y direction from the first guide portions 58EL and 58ER described above.

Each second guide portion 58F includes a pair of plate-like portions 58Ca extending in the vertical direction and spaced apart in the depth direction, a plurality of reinforcing ribs 58Cb connecting and reinforcing the pair of plate-like portions 58Ca, have Of the pair of plate-like portions 58Ca, the plate-like portion 58Ca located on the -Y side faces the second guide 64d of the rail portion 64 shown in FIG.

A plurality of ridges 58s are formed on the surface of the plate-like portion 58Ba facing the second guide 64d of the rail portion 64 shown in FIG. . 58 s of these several protrusions are provided in order to reduce the contact area with the rail part 64 (2nd guide 64d). In each of the plurality of ridges 58s, the cross section orthogonal to the width direction is, for example, a semicircular shape convex in the +Y direction.

(Third guidance section)
The pair of third guide portions 58G is plate-shaped and extends upward from each of the second guide portions 58F. The third guide portion 58G is perpendicular to the first wall portion 58dL and extends in the vertical direction (Y direction) in parallel with the plate-like portion 58Ca.

The lower end of the third guide portion 58G is connected to the upper end of the -Y direction plate-like portion 58Ca of the pair of plate-like portions 58Ca of the second guide portion 58F. The upper end of the third guide portion 58G is connected to the lower surface of a flange portion 58g formed at the upper end of the peripheral wall portion 58A.
The height of the protrusion of the third guide portion 58G to the outside in the X direction is greater than the flange width of the flange portion 58g. That is, the third guide portion 58G protrudes outward in the X direction from the flange portion 58g. The projection height in the X direction of the third guide portion 58G is the same as that of the plate-like portion 58Ca.

The -Y side surface of the third guide portion 58G faces the second guide 64d of the rail portion 64 shown in FIG. The surface of the third guide portion 58G facing the second guide 64d of the rail portion 64 is also formed with a plurality of protrusions 58s that protrude from the surface in the -Y direction and extend in the width direction of the surface. . The plurality of protrusions 58s provided on the third guide portion 58G are formed at intervals narrower than the arrangement intervals of the plurality of protrusions 58s on the second guide portion 58F side. The arrangement interval in the vertical direction of the protrusions 58s provided on the third guide portion 58G can be changed as appropriate.

When the case main body 57 is placed on the lifting table 67, the second wall portion 57dR and the first wall portion 58dR of the case main body 57 and the first Wall portion 57dL is inserted. That is, the “narrow portion” of the case main body 57 is mounted on the “narrow portion” of the platform main body 58 . As a result, the case body 57 is positioned in the depth direction with respect to the platform body 58 .

When the case main body 57 is attached to the platform main body 58, the "narrow portion" sides of the case main body 5 and the platform main body 58 are inserted between the side ribs 61C and 61D shown in FIG. , protrudes in the +Y direction from the side ribs 61C and 61D.

FIG. 9 is a perspective view showing the structure of the lower surface side (−Z side) of the bottom surface portion 58a of the platform main body 58. As shown in FIG.
As shown in FIG. 9, a first guide portion 58n, a pair of locking portions 58p, a pair of second guide portions 58t, a vibration absorbing material holder 58M, and fixing bosses 58q and 58r are provided on the lower surface of the bottom surface portion 58a. − It protrudes in the Z direction.
The amount of projection in the -Z direction of the first guide portion 58n, the pair of locking portions 58p, the pair of second guide portions 58t, the damping material holder 58M, and the fixing bosses 58q and 58s is the height of the bottom plate portion 58B. smaller than

The first guide portion 58n is a wall-shaped body that guides movement in the depth direction (Y direction) of the operation member 59, which will be described later. The first guide portion 58n has a guide groove 58k extending in the depth direction. In this embodiment, four first guide portions 58n (guide grooves 58k) are formed at intervals in the X direction. Each guide groove 58k is open in the -Z direction.
The shape of the first guide portion 58n (guide groove 58k) is not particularly limited as long as it can guide the operating member 59 in the depth direction. Moreover, the number of guide grooves 58k is not limited to four as long as it is one or more.

The pair of locking portions 58p are projections with which the +Y-direction end portion (second end portion 77b) of the biasing member 77 shown in FIG. 10 is locked. Each locking portion 58p has a recess into which the second end portion 77b of the biasing member 77 can be inserted from the -Y direction. The shape of the locking portion 58p is not particularly limited as long as the second end portion 77b of the biasing member 77 can be locked.

In the example shown in FIG. 9, each locking portion 58p is arranged between guide grooves 58k adjacent in the width direction. The position of each engaging portion 58p in the depth direction is substantially the same as the +Y direction end of the first guide portion 58n (guide groove 58k).

The second guide portion 58t is a wall-shaped protrusion that guides the movement of the first locking portion 70 in the width direction (X direction). In the example shown in FIG. 9, the second guide portion 58t has a pair of wall bodies 58t1 that sandwich the first locking portion 70 in the depth direction (Y direction). These two wall bodies 58t1 are in contact with the inner surfaces of the second wall part 58dR or the first wall part 58dL of the platform main body 58, respectively.

A guide hole portion 58u is formed in the first wall portion 58dL and the second wall portion 58dR of the elevator table main body 58 in a portion between the wall portions 58t1 of the second guide portion 58t. A part of the first locking portion 70 arranged between the two walls 58t1 protrudes outward in the X direction from the guide hole portion 58u, and can move back and forth along the second guide portion 58t in the width direction.

The damping material holder 58M holds the damping material 78 shown in FIG. The shape of the vibration absorbing material holder 58M is not particularly limited as long as the vibration absorbing material 78 can be held. In the example shown in FIG. 9, the vibration-absorbing material holder 58M has flat plate-like projections parallel to the width direction. A holding groove 58v recessed in the +Z direction is formed at the end of the vibration absorbing material holder 58M in the projecting direction (−Z direction). The holding groove 58v is a groove for inserting the vibration absorbing material 78. As shown in FIG.

The arrangement position and the number of vibration absorbing material holders 58M are not particularly limited. In the example shown in FIG. 9, the damping material holder 58M is positioned at the center of the bottom surface portion 58a in the width direction. The position of the damping material holder 58M in the depth direction is substantially the same as the +Y direction end of the first guide portion 58n (guide groove 58k).

The vibration absorbing member 78 shown in FIG. 10 is provided to reduce the impact sound caused by the impact acting on the platform main body 58 from the operating member 59 when the operating member 59 moves in the depth direction. For example, the vibration absorbing material 78 is made of an elastomer having shock absorption properties.

In the example shown in FIG. 10, the damping material 78 includes a head portion 78a that can be deformed by the impact force from the operation member 59, and a mounting portion 78b that is inserted into the holding groove 58v of the damping material holder 58M shown in FIG. , has The mounting portion 78b sandwiches the damping material holder 58M between itself and the head portion 78a.

As shown in FIG. 9, fixing bosses 58q and 58s are provided for fixing the lower cover 60 shown in FIG. The fixing bosses 58q and 58r are cylindrical projections having a height that allows the lower surface of the lower cover 60 to be aligned with the lower end of the front end plate portion 58b of the platform main body 58 and fixed. A fixing hole into which a screw 76 can be screwed is formed in the center hole of the fixing bosses 58q and 58r.
The fixing boss 58q is provided at a position facing the vibration absorbing material holder 58M on the -Y direction side of the vibration absorbing material holder 58M.
The fixing boss 58r is provided at a position facing each second guide portion 58t on the -Y direction side of each second guide portion 58t.

(Unlocking mechanism)
FIG. 10 is a perspective view showing the configuration of the unlocking mechanism 80 and the lower cover 60. As shown in FIG. FIG. 10 shows a state in which the door housing case 56A is locked to the rail portion 64 on the door side and the operation member 59 is in the "locked position". FIG. 11 is a perspective view showing the configuration of the bottom side of the platform main body 58, viewed from the -Z direction side.

As shown in FIG. 11, the bottom plate portion of the lift table 67 is provided with an unlocking mechanism 80 .
The unlocking mechanism 80 is a mechanism for unlocking the door storage case 56A from the door-side rail portion 64 shown in FIG. Specifically, the unlocking mechanism 80 moves the first locking portion 70 to a non-lockable position where it cannot be locked to the locking plate 64e (locking surface 64i) of the rail portion 64 shown in FIG. An upper stage door storage case 56A is made vertically movable.

The unlocking mechanism 80 is positioned between the platform main body 58 and the lower cover 60, as shown in FIG. The unlocking mechanism 80 includes an operating member 59 and a pair of biasing members 77 .

(Operation member)
The operation member 59 is sandwiched between the platform main body 58 and a lower cover 60 to be described later so as to be movable in the depth direction (Y direction).
The operating member 59 has an operating portion 59a, a pair of biasing member holders 59b, a pair of guide ribs 59c, and a pair of pressing members 59d.
As shown in FIG. 10 , the operation portion 59 a has a frame shape extending in the width direction, and is arranged so as to face the front end plate portion 58 b of the platform main body 58 . A groove portion 59h into which a user's hand enters from below is opened on the lower surface side of the operation portion 59a.

The biasing member holder 59b is a frame that holds the biasing member 77 that biases the operating member 59 in the -Y direction. The biasing member holder 59b has a rectangular frame shape having a length in the moving direction (Y direction) of the operating portion 59a, and has a locking portion 59i that locks the end portion of the biasing member 77 in the -Y direction. and a guide shaft 59j (FIG. 10) extending from the engaging portion 59i toward the operating portion 59a.

(biasing member)
The biasing member 77 held by the biasing member holder 59b is, for example, a compression coil spring.
The biasing member 77 is fitted over the guide shaft 59j (FIG. 10). As shown in FIG. 11, the biasing member 77 has one end engaged with the engagement portion 59i and the other end engaged with the engagement portion 58p of the elevator platform main body 58 side. As a result, the biasing member 77 is arranged between the operating member 59 and the platform main body 58, and biases the operating member 59 against the platform main body 58 in the -Y direction.

The pair of guide ribs 59c are projections each extending along the moving direction (Y direction) of the operating portion 59a. The guide ribs 59c are spaced apart from each other in the width direction (X direction) and positioned outside the biasing member holders 59b in the X direction.

The pair of guide ribs 59k is arranged parallel to and between the pair of guide ribs 59c, and each is a projection extending along the movement direction (Y direction) of the operation portion 59a. The pair of guide ribs 59k are arranged with an interval narrower than the interval between the pair of guide ribs 59c, and positioned inside each biasing member holder 59b in the X direction.
These guide ribs 59c and 59k are respectively inserted into four guide grooves 58k formed on the rear surface side of the platform main body 58 shown in FIG. 9, and are movable in the depth direction along each guide groove 58k.
As shown in FIG. 9, a plurality of guide ribs 59c and 59k are provided in the lateral width direction and are connected to each other via a plurality of plate portions 59m positioned between them.

Hereinafter, as shown in FIG. 9, the position when the operation member 59 is most moved in the -Y direction by the biasing force of the pair of biasing members 77 will be referred to as the locking position. Although not shown, the position when the operating portion 59a is moved most in the +Y direction by the user's operation is referred to as an "unlocking position".

The moving distance in the depth direction from the "locking position" to the "unlocking position" (hereinafter, moving distance) is the length of the guide rib 59k inserted into each guide groove 58k at the locking position (hereinafter, insertion length). length). As a result, even if the operating member 59 moves to the "unlocking position", the entire guide rib 59k is not pulled out of the guide groove 58k.

As shown in FIG. 10, a pressing member 59d is provided on the -X direction side of the -X direction side guide rib 59c. A pressing member 59d is provided on the +X direction side of the +X direction side guide rib 59c. Each pressing member 59d is connected to a guide rib 59c.

The pressing member 59d moves the first locking portion 70 in the X direction intersecting the moving direction of the operating member 59 according to the amount of movement of the operating member 59 in the depth direction. The pressing member 59d has a flat plate portion 59g parallel to the guide rib 59k and a projecting portion 59e protruding outward in the X direction from the flat plate portion 59g.

When viewed from the +Z direction, the projecting portion 59e has a mountain shape having a top portion 59f in the projecting direction. The top portion 59f may be a flat surface parallel to the flat plate portion 59g, or may be a convex arc-shaped curved surface when viewed from the +Z direction. In the example shown in FIG. 10, the external shape of the protrusion 59e seen from the +Z direction is an isosceles triangle, and the apex 59f is a convex arc-shaped curved surface.
The width of the protrusion 59e in the depth direction is about twice the moving distance of the operation member 59. As shown in FIG.
The protruding portion 59e is positioned within the second guide portion 58t of the platform main body 58 shown in FIG.

The operating member 59 of the present embodiment includes an operating portion 59a, a biasing member holder 59b, a guide rib 59c, and a pressing member 59d that are integrally formed. Therefore, the operation member 59 is restrained from meandering and rotating in the horizontal plane, so that the operation member 59 can move linearly along the depth direction.

(lower cover)
As shown in FIG. 11, the lower cover 60 is mounted on the platform main body 58 with the operating member 59, each biasing member 77, the vibration absorbing material 78, and each first locking portion 70 mounted thereon. It has a box shape covering the lower surface of 58 . The lower cover 60 forms the outer shape of the bottom of the platform 67 together with the platform main body 58 . The lower cover 60 has an asymmetrical shape in the width direction.

As shown in FIG. 10, the lower cover 60 has a through groove 60h at the +Y direction end into which the operating portion 59a can be inserted. The lower cover 60 has a bottom surface portion 60a and a peripheral wall portion 60B extending in the +Z direction from the outer peripheral edge of the bottom surface portion 60a. The peripheral wall portion 60B includes a rear plate portion 60c positioned on the outer edge of the bottom portion 60a in the −Y direction, and a second narrow portion positioned on the −Y direction side of the bottom portion 60a on both sides in the width direction of the rear plate portion 60c. The plate portion 60bR and the first side plate portion 60bL, the pair of flat plate portions 60g extending outward in the X direction from the +Y direction side ends of the second plate portions 60bR and 60bL, and the +Y direction side of the bottom portion 60a. The first plate portion 60eL and the second plate portion 60eR positioned at the wide parts, the corner portion 60s positioned on the +Y direction side of the first plate portion 60eL, and the notch positioned on the +Y direction side of the second plate portion 60eR. and a plate portion 60x. The cutout plate portion 60x is inclined toward the through groove 60h (−X direction) as it goes from the second plate portion 60eR side toward the +Y direction side.

The bottom surface portion 60a is provided with screw bosses 60d having through-holes for inserting screws 76 for fixing to the platform main body 58. As shown in FIG. As shown in FIG. 11, the back side of the screw boss 60d is recessed in the +Z direction so that the screw head of the screw 76 does not protrude.

The first plate portion 60eL, the second plate portion 60eR, and the notched plate portion 60x are provided along the periphery of the "wide portion" on the +Y direction side of the bottom surface portion 60a. The second plate portions 60bR and 60bL are provided along the periphery of the “narrow portion” on the −Y direction side of the bottom portion 60a.

When the lower cover 60 is attached to the elevator platform main body 58, the peripheral wall portion 60B of the lower cover 60 is inserted into the rear surface side of the elevator platform main body 58, and extends toward the −Z side of the peripheral wall portion 58A from the bottom surface portion 58a. It is surrounded by the projecting portion and the bottom plate portion 58B projecting to the -Z side from the bottom surface portion 58a. That is, the lower cover 60 is attached at a position that is not visible to the user when the case body 57 is viewed from the front (+Y direction).

The lower cover 60 is screwed in a state of being fitted to the lower part of the platform main body 58 from below. Specifically, a plurality of screws 76 inserted into screwing bosses 60d formed in the lower cover 60 are screwed into the fixing bosses 58q and 58s of the platform main body 58, whereby the lower cover is 60 is fixed to the platform body 58 .

The bottom surface portion 60a of the lower cover 60 is arranged parallel to the bottom surface portion 58a of the elevator platform main body 58 with a certain gap therebetween. As a result, the vertical displacement of the member sandwiched between the bottom surface portion 60a of the lower cover 60 and the bottom surface portion 58a of the platform main body 58 can be suppressed. For example, the bottom surface portion 60a can suppress the swinging of the operating member 59 and the pair of biasing members 77 in the vertical direction. As a result, the movement of the operation member 59 in the depth direction becomes smooth.

(First locking portion)
The first locking portions 70 are provided on both sides of the lifting platform 67 in the width direction.
Below, the example of the 1st latching|locking part 70 arrange|positioned at the +X direction side demonstrates.

As shown in FIG. 10 , the first locking portion 70 includes a first holder 71 , a locking member 73 , a biasing member (not shown), and a second holder 75 .

The first holder 71 is a rectangular parallelepiped box penetrating in the X direction.
A portion of the locking member 73 is inserted into the first holder 71 .
The biasing member is arranged between the locking member 73 inserted into the first holder 71 in the first locking portion 70 and a second holder 75 described later, and pushes the locking member 73 in the +X direction (outward direction). ). A compression coil spring can be used as the biasing member.

The second holder 75 is fixed to the +X direction end of the first holder 71 .
The second holder 75 has a projecting portion 75a and a connecting portion 75f. When viewed from the +Z direction, the protruding portion 75a has a mountain shape having a top portion 75b in the protruding direction. The top portion 75b may be a flat surface or a convex arc-shaped curved surface when viewed from the +Z direction. In the example shown in FIG. 10, the mountain shape of the protrusion 75a is an isosceles triangle, and the apex 75b is a convex arc-shaped curved surface. The inclination of the protrusion 75a is not particularly limited as long as it is equal to or greater than the inclination of the protrusion 59e. In the example shown in FIG. 10, the inclination of the protrusion 75a is substantially equal to the inclination of the protrusion 59e described above. The connecting portion 75f is in the form of a piece protruding in the +X direction from both Y-direction ends of the protrusion 75a in the depth direction.

As shown in FIGS. 9 and 10, in the assembled first locking portion 70, an urging member (not shown) and a biasing member (not shown) are provided in an internal space formed by coupling the first holder 71 and the second holder 75 together. , and a locking member 73 are housed therein, and a part of the locking member 73 protrudes from inside the first holder 71 in the +X direction (outside). A position where the amount of protrusion of the locking member 73 in the +X direction is maximum is referred to as a “locking position” of the first locking portion 70 . When the first locking portion 70 is in the "locking position", it is locked to the rail portion 64 shown in FIG.

The locking member 73 of the first locking portion 70 at the “locking position” extends outside the platform main body 58 through the guide hole 58 u ( FIG. 9 ) of the platform main body 58 .

In this embodiment, a biasing member (not shown) and a locking member 73 are arranged substantially coaxially in series. is inserted. Therefore, the locking member 73, the first holder 71, and the biasing member are arranged substantially coaxially with each other.

Here, operations of the first locking portion 70 and the operating member 59 will be described.
As described above, at the "locking position" of the first locking portion 70, the positions of the first holder 71 and the second holder 75 in the width direction are fixed. On the other hand, the locking member 73 is biased by the biasing member inside the first holder 71 and the second holder 75, but is movable in the +X direction. Therefore, when the tip of the locking member 73 in the +X direction is pressed in the -X direction with a force larger than the biasing force of the biasing member, the locking member 73 moves in the -X direction, and the tip of the locking member 73 moves in the guide hole portion 58u. (FIG. 11).

When the operating member 59 is pulled in the +Y direction by the user, the pair of pressing members 59d moves in the +Y direction against the biasing force of the pair of biasing members 77 to reach the "unlock position".
When each pressing member 59d moves to the "unlocked position", the first locking portions 70 biased toward the pressing member 59d by a biasing member (not shown) move toward the pressing member 59d. A portion of the first locking portion 70 protruding from the guide hole portion 58u of the platform main body 58 is pulled into the lower cover 60 . In other words, the locking member 73 retreats inside the guide hole portion 58u while being biased outward in the width direction by the biasing member.

When the operating member 59 is moved to the unlocked position in this way, the first locking portion 70 is moved so that the tip of each locking member 73 does not protrude from the guide hole portion 58u. In this state, the locking member 73 of each first locking portion 70 cannot be locked to the locking plate 64e of the rail portion 64 (unlockable position).

When the user releases the operating portion 59a, the operating member 59 moves in the -Y direction due to the biasing force of the biasing member 77. Therefore, the operating member 59 and the first locking portions 70 are moved to their respective locking positions. back to At this time, the operation member 59 that moves under the biasing force from the biasing member 77 hits the vibration absorbing member 78 without colliding with the members of the elevator platform main body 58 , for example. The kinetic energy of the operating member 59 is absorbed by the vibration absorbing material 78, and the operating member 59 stops at the locking position. Therefore, the impact sound caused by the impact of the operation member 59 is reduced.

A certain amount of impact force is transmitted to the platform main body 58 through the vibration absorbing material 78 . In this embodiment, an external force acts on the platform main body 58 due to the expansion and contraction of the biasing member 77 and the impact of the operating member 59 . The fixing boss 58r is provided at a position facing each locking portion 58p and the holding groove 58v on which an external force acts in the direction of the external force. Therefore, by screwing the lower cover 60 to the fixing bosses 58r, a reinforcing structure that efficiently resists external force can be obtained. As a result, even if an external force such as an impact force is transmitted to the platform main body 58 to some extent, the vibration is suppressed, so that a stable operational feeling can be obtained.

In this embodiment, the locking member 73 protrudes outside the guide hole portion 58u at the locking position, and retreats inside the guide hole portion 58u depending on the external force acting on the locking member 73 . Similarly, when the operating member 59 moves to the unlocked position, the entire first locking portion 70 moves parallel to the non-lockable position.

Next, a locking structure when the upper door storage case 56A is attached to the refrigerator compartment door 12 will be described. Although the upper door storage case 56A will be described as an example, the same applies to the middle door storage case 56B.
As shown in FIG. 2, the upper door storage case 56A is attached to the locking plate 64e at a predetermined position among a plurality of locking plates 64e provided in the vertical direction of the pair of rail portions 64 shown in FIG. It is mounted at a predetermined position on the rail portion 64 in a state of being locked from above. When attached to the rail portion 64, the upper door storage case 56A cannot be pulled out toward the refrigerator compartment 27, and is prevented from moving downward in the -Z direction.

As shown in FIG. 11, when the operation member 59 arranged on the bottom side of the upper door storage case 56A is in the locked position, the operation member 59 is moved through a pair of guide holes 58u provided on both sides of the platform main body 58 in the width direction. A main body portion 73 a of each locking member 73 protrudes outward from the elevator platform main body 58 in the Y direction. The body portion 73a of each locking member 73 is locked from above to each locking plate 64e at a predetermined position (same position in the horizontal direction) of the pair of rail portions 64 shown in FIG. The bottom surface of each locking member 73 on the tip side is pressed against the locking surface 64i of the predetermined locking plate 64e of the rail portion 64 by the gravity of the upper door housing case 56A.

The first guide portion 58EL on the -X direction side of the elevator platform main body 58 is inserted into the stopper insertion groove g1 on the -Y direction side of the rail portion 64 in the side rib 61D, and the second guide portion 58F and the third guide Together with the portion 58G, the rail portion 64 is sandwiched in the depth direction.

The first guide portion 58ER on the +X direction side of the platform main body 58 is inserted into the stopper insertion groove g2 on the -Y direction side of the rail portion 64 of the side rib 61C, and the second guide portion 58F and the third guide portion Together with 58G, the rail portion 64 is sandwiched in the depth direction.

The center of gravity of the upper door storage case 56</b>A in the state of being locked to the rail portion 64 is located on the refrigerator compartment 27 side (+Y direction) from the rail portion 64 . For this reason, in the pair of first guide portions 58EL and 58ER positioned in the -Y direction of the rail portion 64 in the elevator platform main body 58, the plate-like portion 58Aa on the +Y direction side of the first guide portion 58EL shown in FIG. The upper side presses the rail portion 64 toward the refrigerator compartment 27 (+Y direction), and the lower side of the plate-like portion 58Aa on the -Y direction side of the first guide portion 58EL presses the end surface 53cy (FIG. 2) to the inner surface 53a ( −Y direction). In addition, the upper portion of the plate-like portion 58Ba on the +Y direction side of the first guide portion 58ER shown in FIG. The lower side of the side plate-like portion 58Bd presses the end surface 53cy (FIG. 3) toward the inner surface 53a (-Y direction).

At the same time, of the second guide portion 58F and the third guide portion 58G located on the +Y direction side of the pair of left and right rail portions 64 in the elevator main body 58 shown in FIGS. The second guide portion 58F positioned on the (−Z direction) side presses the rail portion 64 toward the −Y direction. The second guide portion 58F presses the rail portion 64 toward the inner surface 53a (−Y direction) on the lower side of the plate-like portion 58Ca on the −Y direction side.

The user can move the upper door storage case 56A vertically by performing each operation described below. Although the upper door storage case 56A will be described as an example, the same applies to the middle door storage case 56B.

(upward movement: push-up operation)
In order to move the upper door storage case 56A upward, a push-up operation is performed.
The push-up operation is an operation in which the user applies a force to lift the upper door storage case 56A upward, thereby moving it in the +Z direction. In this case, a rotational moment is applied to the upper door storage case 56A in a direction opposite to that in the locked state.

That is, of the pair of first guide portions 58EL and 58ER provided on the platform main body 58, the lower portion of the plate-like portion 58Aa on the +Y direction side of the first guide portion 58EL shown in FIG. (+Y direction) side, and the upper end side of the plate-like portion 58Aa on the -Y direction side of the first guide portion 58EL presses the end surface 53cy (FIG. 2) toward the inner surface 53a (-Y direction) side. In addition, the lower side of the plate-like portion 58Ba on the +Y direction side of the first guide portion 58ER shown in FIG. The upper portion of the plate-like portion 58Bd presses the end surface 53cy (FIG. 3) toward the inner surface 53a (-Y direction).

At the same time, in the elevator platform main body 58 shown in FIGS. 7 and 8, of the second guide portion 58F and the third guide portion 58G located on the +Y direction side of the pair of left and right rail portions 64, the second guide portion 58F The third guide portion 58G located on the upper side (+Z direction) presses the rail portion 64 in the -Y direction. The third guide portion 58G presses the rail portion 64 toward the inner surface 53a (-Y direction) on the upper side.

(Downward movement: unlocking operation)
The unlocking operation is an operation for forcibly canceling the locking of the rail portion 64 by the locking member 73 in the vertical direction.
In this operation, the user operates the operating member 59 to move the operating member 59 to the unlocked position. For example, the user moves the operating member 59 in the +Y direction by holding the operating portion 59a and the lower end of the front end plate portion 58b of the platform main body 58 by hand in the depth direction.
In this embodiment, when the operating portion 59a of the operating member 59 comes closest to the front end plate portion 58b of the platform main body 58, the operating member 59 moves to the unlocked position.

At the unlocked position, the pair of locking members 73 are pulled into the elevator main body 58, so that the locking of the locking members 73 with respect to the pair of rail portions 64 is released at the same time.
When the user releases the grip of the operation portion 59a and the lower end of the front end plate portion 58b of the platform main body 58 at the destination, the locking member 73 is moved by the biasing force of the biasing member 77 to the second wall portion 58dR. Since it protrudes outside, the locking member 73 protrudes into the upper concave portion of the nearest lower locking plate 64e. By releasing the hand in this state, the locking member 73 is locked on the nearest lower locking plate 64e at the destination.

By such an unlocking operation, the user moves the upper door housing case 56A downward and locks the upper door housing case 56A and the middle door housing case 56B to the lower locking plate 64e. can be made As a result, the upper door housing case 56A can be locked to arbitrary locking plates 64e of the pair of rail portions 64 facing each other in the horizontal direction and having the same vertical position.

Here, the movable ranges of the upper door housing case 56A and the middle door housing case 56B will be described.
The upper limit position of the upper door storage case 56A in this embodiment is regulated by the upper end plate 64g of the rail portion 64. As shown in FIG. The upper door housing case 56A can move upward at a position where it is locked with respect to the uppermost locking plate 64e located directly below the upper end plate 64g of the rail portion 64. As shown in FIG.

The lower limit position of the upper door housing case 56A is regulated by a pair of gap regulating stoppers 58DR and 58DL on the side of the upper door housing case 56A. That is, when the upper door storage case 56A is lowered, the interval regulation stoppers 58DR and 58DL come into contact with the upper end surfaces of the first guide portions 58ER and 58EL of the middle door storage case 56B located directly below. Movement downward is restricted. Therefore, the lower limit position of the upper door storage case 56A changes depending on the position of the middle door storage case 56B.

The upper door storage case 56A, in which the case body 57 is placed on the lifting platform 67, cannot be removed from the upper end of the rail portion 64. It can be removed from the gap between the rail portion 64 and the upper rib 61F of the inner surface member 53A by, for example, tilting the base 67 obliquely. Therefore, when mounting the upper door housing case 56A, it is possible to mount by first mounting only the lifting platform 67 to each rail portion 64 .

On the other hand, the movement range of the middle door storage case 56B in this embodiment is set by, for example, the position of the upper door storage case 56A and the lowered position restricting portion 53d.
The upper limit position of the middle door storage case 56B changes depending on the position of the upper door storage case 56A. That is, when the middle door housing case 56B is lifted, the upper end surfaces of the pair of first guide portions 58ER and 58EL of the middle door housing case 56B are aligned with the upper end surfaces of the pair of first guide portions 58ER and 58EL of the upper door housing case 56A at predetermined positions. By coming into contact with the lower end surfaces of the guide portions 58EL, ER (interval regulation stoppers 58DR, 58DL), upward movement is restricted.

The lowermost position of the middle door storage case 56B is a position where the lower ends of the first guide portions 58ER and 58EL are locked to the lowered position restricting portion 53d from above. When the first guide portions 58ER and 58EL of the middle door housing case 56B are at the lowest positions locked to the lowered position regulating portions 53d located on the lower end side of the pair of rail portions 64, the middle door housing case 56B and the lower stage are positioned. The vertical distance between the upper door housing case 56A and the middle door housing case 56B is such that the gap regulating stoppers 58DR and 58DL of the upper door housing case 56A are in contact with the middle door housing case 56B. is the same or greater than the distance between the two when they are closest to each other.

In this way, the middle door storage case 56B is restricted from moving further downward by the lowered position restricting portion 53d.

Also in the middle door storage case 56B, the pair of first guide portions 58EL and ER (respective spacing regulation stoppers 58DR and 58DL) provided on both sides of the platform main body 58 in the width direction are aligned with each other in the -Y direction of the rail portion 64. It is inserted into the stopper insertion grooves g1 and g2 on the side to be hidden.

Thus, the user can freely change the vertical positions of the upper door housing case 56A and the middle door housing case 56B within the movable range of the upper door housing case 56A and the middle door housing case 56B. .

According to the upper door storage case 56A and the middle door storage case 56B of the present embodiment, the user can move the front side of the upper door storage case 56A (middle door storage case 56B) regardless of whether the push-up operation or the unlocking operation is performed. , the upper door storage case 56A (middle door storage case 56B) can be moved by a simple operation with one hand. In the following description, the upper door housing case 56A is taken as an example, but the same applies to the middle door housing case 56B.

In order to move the door storage case 56A mounted on the rail portion 64 in the vertical direction, the first guide portions 58ER, 58EL, the second guide portion 58F, and the third guide portion 58G of the elevator main body 58 and the rail portion 64 is required. However, due to the presence of the gap, when the door housing case 56A is moved up and down, the door housing case 56A is tilted so as to bite into the rail portion 64, and a large force is required for the initial movement of the door housing case 56A. Sometimes it becomes In this case, the sliding direction of the door housing case 56A is not stabilized, and the movement as if it is caught in the rail portion 64 and the initial operation become heavy.

Such a phenomenon often occurs when attempting to move the door housing case 56A upward. In particular, when the platform body 58 is not provided with the third guide portion 58G, the inclination of the door housing case 56A becomes large, and the above phenomenon becomes significant.

Therefore, in the present embodiment, a pair of third guide portions 58G are further provided in the width direction of the platform main body 58. As shown in FIG. As a result, the total vertical length of the second guide portion 58F and the third guide portion 58G is approximately the same as that of the first guide portion 58ER (58EL) located on the -Y direction side of the rail portion 64. length. That is, the second guide portion 58F, the third guide portion 58G, and the first guide portions 58ER and (58EL) are present over substantially the entire vertical length of the platform main body 58 . The second guide portion 58F and the third guide portion 58G and the first guide portions 58ER and (58EL) are opposed to each other in the Y direction via the rail portion 64, and extend over the same range in the length direction of the rail portion 64. Sandwich.

Therefore, when the door housing case 56A is lifted, even if a rotational moment is generated in the +Y direction of the door housing case 56A toward the +Z direction with the first locking portion 70 locked to the rail portion 64 as a fulcrum, the rail It is possible to suppress the inclination of the door storage case 56A with respect to the portion 64, and the amount of pressure applied to the rail portion 64 by the second guide portion 58F, the third guide portion 58G, and the first guide portions 58ER and (58EL) is substantially equal in the vertical direction. equalize. As a result, the phenomenon inconvenient for vertical movement as described above is less likely to occur, and the door housing case 56A can be smoothly moved with respect to the rail portion 64. FIG. In this way, the sum of the vertical lengths of the second guide portion 58F and the third guide portion 58G existing in the ±Y direction of the rail portion 64 and the vertical length of the first guide portion 58ER (58EL) , and are of equal length, it is possible to provide sliding stability of the door housing case 56A.

In this embodiment, a first locking portion 70 is provided on the lower end (bottom) side of the door housing case 56A. Therefore, the third guide portion 58G is provided at a position away from the first locking portion 70 upward. Providing the third guide portion 58G at a position apart from the first locking portion 70, which is the fulcrum of the rotational moment, is advantageous in suppressing the inclination of the door housing case 56A. Therefore, in the present embodiment, the third guide portion 58G is configured to be continuous with the second guide portion 58F, but the present invention is not limited to this, and the third guide portion 58G is provided at least on the upper end side of the door housing case 56A. may be configured.

<Second embodiment>
Next, the refrigerator of 2nd Embodiment which concerns on this invention is demonstrated.
FIG. 12 is a side view showing the configuration of the elevator main body in the refrigerator of the second embodiment. FIG. 12 is a view of the platform main body as seen from the +X direction side.
The basic configuration of the refrigerator of this embodiment is substantially the same as that of the first embodiment, but the configuration of the elevator main body is different. In the following description, the description of the same configuration as that of the first embodiment is omitted, and the different configuration is described in detail.

As shown in FIG. 12, the platform main body 88 of this embodiment has third guide portions 88G and reinforcing ribs 89 on both sides in the width direction instead of the above-described third guide portions 58G. The first guide portion 58EL, the second guide portion 58F, and the third guide portion 88G are spaced apart in the depth direction, forming a gap G5 between them to allow the rail portion 64 to pass therethrough. there is

The third guide portion 88G is located above the second guide portion 58F and provided apart from the second guide portion 58F. The third guide portion 88G is perpendicular to the second flat plate portion 58eR (the first flat plate portion 58eL) and protrudes outward in the width direction. The third guide portion 88G has a plate shape with a substantially square shape when viewed in the Y direction. The third guide portion 88G is provided parallel to the vertical direction along the +Y direction side edge of the groove 58j formed in the second flat plate portion 58eR (the first flat plate portion 58eL).

The position of the third guide portion 88G in the depth direction coincides with the plate-like portion 58Ca on the -Y direction side of the second guide portion 58F. That is, the third guide portion 88G is positioned on a straight line (directly above) the plate-like portion 58Ca on the -Y direction side of the second guide portion 58F, and is parallel to the plate-like portion 58Ca.

The upper end of the third guide portion 88G is connected to the lower surface of the flange portion 58g provided at the upper end of the platform main body 88. As shown in FIG. The vertical length of the third guide portion 88G is smaller than the vertical length of the second guide portion 58F and about half the vertical length (groove depth dimension) of the concave groove 58j. A plurality of ridges 58s extending in the width direction are formed on the -Y direction surface of the third guide portion 88G.

The reinforcing rib 89 is provided on the +Y direction side of the third guide portion 88G. The reinforcing rib 89 is located on the side opposite to the rail portion 64 with respect to the third guide portion 88G. The reinforcing rib 89 is perpendicular to the second flat plate portion 58eR (the first flat plate portion 58eL) and protrudes outward in the width direction. The reinforcing rib 89 of this embodiment is composed of a pair of plate-shaped portions perpendicular to each other, and has an L-shape when viewed in the X direction. The shape of the reinforcing ribs 89 is not limited to this shape, and other shapes may be adopted. One end of the reinforcing rib 89 is connected to the surface of the third guide portion 88</b>G on the +Y direction side, and the other end of the reinforcing rib 89 is connected to the lower surface of the flange portion 58 g of the platform main body 58 .

According to the configuration of this embodiment, even if the third guide portion 88G is separated from the second guide portion 58F, it is provided on the upper end side of the platform main body 58 apart from the first locking portion 70, thereby A rotational moment about the locking portion 70 as a fulcrum can be reduced, and tilting of the platform main body 58 (door housing case 56A) with respect to the rail portion 64 can be suppressed. Therefore, in the present embodiment, similarly to the first embodiment, the slidability of the door housing case 56A with respect to the rail portion 64 can be enhanced, and the door housing case 56A can be smoothly moved in the vertical direction. It is possible.

<Third Embodiment>
Next, the refrigerator of 2nd Embodiment which concerns on this invention is demonstrated.
FIG. 13 is a side view showing the configuration of the elevator main body in the refrigerator of the third embodiment. FIG. 13 is a view of the platform main body as seen from the +X direction side.
The basic configuration of the refrigerator of this embodiment is the same as that of the first embodiment, but the configuration of the elevator main body is different. In the following description, the description of the same configuration as that of the first embodiment is omitted, and the different configuration is described in detail.

As shown in FIG. 13, the platform main body 98 of the present embodiment includes a first guide portion 98ER or a first guide portion 98EL, a second guide portion 58F, and a pair of rotating bodies ( 3rd guide part) 98G. The first guide portions 98ER and 98EL in this embodiment have a length shorter than the vertical length of the first guide portions 98ER and 98EL in the first embodiment.

One rotating body 98G is arranged above each of the first guide portion 98ER and the second guide portion 58F. Of the pair of rotating bodies 98G, the rotating body 98G arranged on the -Y direction side is provided between the first guide portion 98ER and the flange portion 58g of the elevator platform main body 98. As shown in FIG. The pair of rotating bodies 98G have an arrangement interval in the depth direction that matches the interval between the first guide portion 98ER and the second guide portion 58F. A gap G5 is formed through which the portion 64 can be inserted.

The pair of rotors 98G is rotatable around a rotation axis OG extending in the width direction. The bodies of revolution 98G have diameters equal to each other, but may be different from each other. Further, in this embodiment, a pair of rotating bodies 98G are provided in the depth direction, but the number of rotating bodies 98G is not limited to this. For example, a configuration in which two rotating bodies 98G are arranged vertically on the side of the second guide portion 58F may be employed. These pair of rotors 98G rotate in directions opposite to each other when the platform main body 98 is moved with respect to the rail portion 64 .

According to the configuration of the present embodiment, the rotors 98G are respectively provided above the first guide portions 98ER, 98EL and the second guide portion 58F. The rotational moment about the fulcrum 70 can be reduced, and the tilting of the platform main body 98 (door storage case 56A) with respect to the rail portion 64 can be suppressed. Therefore, in the present embodiment, similarly to the first embodiment, the slidability of the door housing case 56A with respect to the rail portion 64 can be enhanced, and the vertical movement of the door housing case 56A can be smoothly performed. It is possible.

In the present embodiment, a pair of rotating bodies 98G are provided on both sides of the platform main body 98 in the width direction. It is good if it is The second guide portion 58F has a shorter length in the vertical direction than the first guide portions 98ER and 98EL and a lower upper end height, so that the portion that supports the rail portion 64 above the second guide portion 58F. does not exist. Therefore, by providing at least the rotating body 98G in this portion, it is possible to suppress the rotational moment when the platform main body 98 rises, and prevent the platform main body 98 from biting into the rail portion 64. As a result, the door storage case 56A can be smoothly moved.

In addition, according to the configuration of the present embodiment, the pair of rotating bodies 98G contact and rotate with the rail portion 64, which assists the lifting force when moving the platform main body 98 particularly upward. The lifting table body 98 (door storage case 56A) can be moved by resistance.
In addition, the provision of the pair of rotating bodies 98G compensates for the force required for the movement operation, and regardless of the gap with the rail portion 64, variations in slidability with respect to the rail portion 64 can be reduced. . As a result, the control of the gap dimension with the rail portion 64 can be looser than in the case of the rib structure as in the above-described embodiment, so control in mass production can be facilitated.

Although one embodiment of the present invention has been described above, it is presented as an example and is not intended to limit the scope of the invention. The above embodiment 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.

According to one embodiment described above, it has a housing that includes a storage chamber and a door that opens and closes the storage chamber. Further, a pair of wall portions projecting rearwardly toward the storage chamber from the inner surface member of the door, extending in the vertical direction, and facing each other with a gap in the lateral width direction of the door, and a pair of the wall portions. a pair of extending portions projecting from side surfaces facing each other and extending in the vertical direction, and a door movable in the vertical direction between the pair of wall portions along the pair of extending portions. Have a container and The door containers are spaced apart from each other in the depth direction to form a gap between them to allow the extension portion to pass therethrough, and to guide the vertical movement of the extension portion. A first guide portion, a second guide portion, and one of the first guide portion and the second guide portion form the gap, and the first guide portion and the second guide portion form the vertical direction. and a third guide part for guiding the vertical movement of the door container at different positions, thereby improving the operability when moving the door container in the vertical direction. be able to.

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.

For example, in the first and second embodiments, the third guide portions 58G and 88G are provided above the second guide portion 58F. Not exclusively. A configuration in which the vertical positions of the third guide portions 58G, 88G and the second guide portion 58F are reversed may be used.

For example, in the above-described first embodiment, the rib structure is provided with the plate-shaped third guide portion 58G that is parallel to the vertical direction. Reinforcing ribs may be provided as shown in the second embodiment. In this case, the configuration of the third guide portion 58G and the reinforcing rib may be the same as that of the second guide portion 58F.

Also, the configuration of the third guide portion 88G and the reinforcing rib 89 of the second embodiment may be the same configuration as that of the second guide portion 58F.

In the first embodiment and the second embodiment, the plate-like (rib-like) shape of the third guide portions 58F and 88F makes it possible to easily change the structure at low cost.

DESCRIPTION OF SYMBOLS 1... Refrigerator, 10... Case, 11... Door, 12, 13... Refrigerating compartment door (door), 27... Refrigerating compartment (store room), 53A, 53B... Inner surface member, 53a... Inner surface of inner surface member, 56A... Door Storage case (door container), 58EL, 58ER, 98EL, 98ER... first guide part, 58F... second guide part, 58G, 88G... third guide part, 61C, 61D... side rib (wall part), 64 …Rail portion (extending portion) 64m …Convex portion 98G …Rotating body (third guide portion) G5 …Gap through which rail portion can be inserted OG …Rotating shaft S1, S2 …Side surface X …Width direction , Y...depth direction, Z...vertical direction

Claims (7)

a housing containing a reservoir;
a door that openably closes the storage chamber;
a pair of wall portions protruding rearward toward the storage chamber from the inner surface member of the door, extending in the vertical direction, and facing each other with a gap in the lateral width direction of the door;
a pair of extending portions projecting from side surfaces of the pair of wall portions facing each other and extending in the vertical direction;
a door container movable in the vertical direction between the pair of wall portions along the pair of extension portions;
The door container is
a first guide portion that is spaced apart from each other in the depth direction to form a gap through which the extension portion can be inserted, and that guides the vertical movement of the extension portion; a second guide section;
The gap is formed between the first guide part and the second guide part arranged in front of the first guide part, and the door container is positioned at a position different in the vertical direction from the second guide part. A third guide part that guides the vertical movement of the
refrigerator. The third guide portion is connected to the second guide portion and extends in the vertical direction,
Refrigerator according to claim 1. The total length of the vertical lengths of the second guide portion and the third guide portion is equal to the length of the first guide portion in the vertical direction,
The refrigerator according to claim 2. The third guide portion is configured to be spaced apart from the second guide portion in the vertical direction,
The refrigerator according to claim 2 or 3. The third guide part has a structure having a plurality of convex parts that can contact the extension part,
A refrigerator according to any one of claims 1 to 4. The third guide part is configured by a rotating body rotatable around the axis of rotation extending in the width direction,
Refrigerator according to claim 1. A plurality of the third guide portions are spaced apart from each other in the depth direction,
forming the gap between which the extension portion can be inserted;
The refrigerator according to claim 6.

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