JP6754875B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to refrigerators.

Oxidation and drying by oxygen existing in the air are known as deterioration factors of stored products such as foods stored in refrigerators. Therefore, there is known a refrigerator capable of suppressing oxidation and drying of stored products and maintaining freshness by reducing oxygen in the storage container provided in the storage chamber or keeping the inside of the storage container at high humidity. (See, for example, Patent Document 1).

In such a refrigerator, in consideration of the arrangement and usability of the storage container in the refrigerator, an opening for taking out the stored items is provided on the upper surface of the storage container, and the upper surface is opened by a lid moving along the upper surface of the storage container. The part may be opened and closed, but in order to improve the airtightness of the storage container and enhance the effect of maintaining freshness, a sealing material such as packing provided between the peripheral edge of the upper surface opening of the storage container and the lower surface of the lid is used. If it is provided, the sealing material rubs against the storage container when the lid is opened and closed, and wear and deterioration are likely to occur.

Japanese Unexamined Patent Publication No. 2004-218924

Therefore, in the embodiment of the present invention, in a refrigerator that opens and closes the opening on the upper surface of the storage container provided in the storage chamber with a lid that moves along the upper surface of the storage container, the sealing material is used as the storage container when the lid is opened and closed. It is an object of the present invention to provide a refrigerator capable of suppressing rubbing and deterioration of wear.

The refrigerator of the present embodiment has a storage chamber, a storage container that opens on the upper surface provided in the storage chamber, and moves relative to the storage container along the upper surface of the storage container and moves on the upper surface of the storage container. An opening / closing portion for opening / closing the opening and a lower container provided below the storage container and slidably supporting the storage container in the same direction as the moving direction of the opening / closing container are provided. The storage container is provided with the opening / closing portion. Is provided with a rail that slides to guide the movement of the opening / closing portion, and the rail has a rail body that slides the opening / closing portion while the opening / closing portion is separated from the storage container, and is depressed below the rail body. and a recess for the closing part to slide is moved downward at a position for closing the upper opening of the container in contact with the closing part to the container the rail body, wherein the container is uneven The lower container is locked to the lower container and is movably provided as the lower container moves, and the lower container is provided with a convex portion protruding upward on a sliding surface on which the storage container slides. The convex portion includes a convex portion inclined surface that inclines upward as the opening / closing portion opens the upper surface opening of the storage container, and the rail is attached to the rail main body on the rail main body side of the concave portion. The opening / closing portion is provided with a rail inclined surface that inclines upward as it approaches, and the inclination angle of the rail inclined surface with respect to the horizontal direction is smaller than that of the convex inclined surface, and the opening / closing portion is opened from the state of closing the upper surface opening of the storage container. The sliding resistance required for the opening / closing portion to get over the recess when sliding with respect to the storage container is the sliding required for releasing the lock between the storage container and the lower container. It is smaller than the resistance.

It is sectional drawing of the refrigerator of 1st Embodiment. It is a perspective view of a storage container. FIG. 1 is a sectional view taken along the line AA of FIG. It is sectional drawing which shows the main part of the refrigerator which opened the vegetable room door. It is a figure which shows the main part of FIG. 4 enlarged. It is sectional drawing which shows the main part of the refrigerator which opened the lid. It is sectional drawing which shows the main part of the refrigerator which opened the lid. It is an enlarged sectional view of the main part in the state which opened the lid body in the refrigerator of 2nd Embodiment. FIG. 5 is an enlarged perspective view of a main part of the refrigerator of the second embodiment in a state where the lid closes the storage container.

(First Embodiment)
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the refrigerator 10 according to the present embodiment includes a cabinet 11 that opens to the front surface in which a heat insulating material is arranged between the outer box forming the outer shell and the inner box forming the storage space, and stores the refrigerator 10. The space is divided into an upper refrigerating space 20 and a lower freezing space 40 by a heat insulating partition wall 12.

The refrigerating space 20 is a space cooled to a refrigerating temperature (for example, 2 to 3 ° C.), and the inside is further divided into upper and lower parts by a partition plate 21, and a plurality of stages of mounting shelves 23 are provided in the upper space. A chamber 22 is provided, and a vegetable compartment 24 in which a drawer-type drawer container 25 is arranged is provided in the lower space.

The opening of the refrigerating chamber 22 is closed by a refrigerating chamber door 22a rotatably supported by hinges provided above and below one side of the cabinet 11.

The opening of the vegetable compartment 24 is closed by a pull-out vegetable compartment door 24a. A pair of left and right support frames for holding the drawer container 25 are fixed to the back surface side of the vegetable compartment door 24a, and the drawer container 25 is pulled out of the refrigerator when the door is opened.

In the freezing space 40 arranged below the vegetable compartment 24 via the heat insulating partition wall 12, an ice making chamber equipped with an automatic ice making device and a first freezing chamber 44 are provided on the left and right, and a second freezing chamber is provided below the freezing space 40. A freezing room 46 is provided.

The openings of the ice making chamber, the first freezing chamber 44, and the second freezing chamber 46 are closed by the pull-out doors 44a and 46a, and the doors 44a and 46a are formed by a pair of left and right support frames fixed to the back surface side thereof. The storage containers 45 and 47 are held, and the storage containers are configured to be pulled out of the refrigerator when the door is opened.

A machine room 30 is provided at the bottom of the back surface of the cabinet 11, and a compressor 51 or the like constituting a refrigeration cycle is placed therein.

An evaporator chamber 26 is formed as a partition between the evaporator cover 14 and the back surface of the cabinet 11 on the back surface of the refrigerating space 20, and the refrigerating evaporator 52 and the refrigerating fan 53 are arranged in the evaporator chamber 26. It is installed. The refrigerating evaporator 52 exchanges heat with the air in the refrigerating chamber 26 to cool it, and the cold air generated by the refrigerating evaporator 52 by the rotary drive of the refrigerating fan 53 is sent from the outlet to the refrigerating chamber 22 and vegetables. By introducing it into the chamber 24, the refrigerating space 20 is cooled to a predetermined temperature. The cold air that has finished cooling the refrigerating space 20 is returned to the evaporator chamber 26 from the suction port and exchanges heat with the refrigerating evaporator 52 to be cooled.

An evaporator chamber 34 is formed as a partition between the evaporator cover 33 and the back surface of the cabinet 11 on the back surface of the freezing space 40, and the freezing evaporator 54 and the freezing fan 55 are arranged in the evaporator chamber 34. It is installed. The freezing evaporator 54 cools by exchanging heat with the air in the evaporator chamber 34, and the cold air generated by the freezing evaporator 54 by the rotary drive of the freezing fan 55 is blown from the outlet into the ice making chamber and the first freezing chamber. By introducing it into the 44 and the second freezing chamber 46, the freezing space 40 is cooled to a predetermined temperature. The cold air that has finished cooling the freezing space 40 is returned to the evaporator chamber 34 from the suction port and exchanges heat with the freezing evaporator 54 to be cooled.

The refrigerating evaporator 52 and the freezing evaporator 54 form a refrigerating cycle together with the compressor 51, the condenser (not shown) and the switching valve (not shown) provided in the machine room 30, and are discharged from the compressor 51. It is cooled by the refrigerant.

In the refrigerator 10 having such a configuration, the drawer container 25 provided in the vegetable compartment 24 includes a lower container 27 provided over substantially the entire width of the vegetable compartment 24 and a storage container 100 provided above the lower container 27. It has a structure that overlaps the upper and lower two stages.

The lower container 27 has a bottomed box shape surrounded by a front wall, a rear wall, and left and right side walls and opens upward, and the storage depth of the lower container 27 is deeper than that of the storage container 100. .. The lower container 27 is held by a pair of left and right support frames fixed to the back surface side of the vegetable compartment door 24a, and is configured to be pulled out of the refrigerator when the vegetable compartment door 24a is opened.

The upper ends of the left and right side walls of the lower container 27 form a sliding surface 28 on which the container lower leg portion 106 provided in the storage container 100 is placed and slides in the front-rear direction, and the front portion of the sliding surface 28. Is provided with a convex portion 29 protruding upward. On the front side of the convex portion 29, a convex inclined surface 29a that inclines upward toward the rear is formed (see FIGS. 4 and 5).

The storage container 100 provided above the lower container 27 has a bottomed box shape that opens upward and is surrounded by a front wall, a rear wall, and left and right side walls. The upper surface opening 101 provided on the upper surface of the storage container 100 is an opening for taking in and out stored items inside, and is closed by a lid 130 so as to be openable and closable.

The storage container 100 is arranged close to the lower side of the partition plate 21 that separates the refrigerator compartment 22 and the vegetable compartment 24, and the inner box rails 24b and the left and right lower containers 27 provided on the left and right inner wall surfaces of the vegetable compartment 24. The vegetable compartment 24 is provided in the vegetable compartment 24 so that it can be pulled out of the refrigerator independently of the lower container 27 by sliding the sliding surface 28 provided at the upper end of the side wall in the front-rear direction.

A back opening 102 that opens rearward is provided on the back surface of the storage container 100. The storage container 100 is connected to the oxygen reducing device 200 provided at the rear in a state where the vegetable compartment door 24a is closed and is stored in the vegetable compartment 24 by a connecting duct 201, and the inside of the storage container 100 is connected to the connecting duct 201 and It communicates with the oxygen reducing device 200 through the back opening 102.

The oxygen reducing device 200 is housed in a case in which a solid polymer electrolyte film is sandwiched between a pair of electrodes, and when a voltage is applied between the anode electrode and the cathode electrode, moisture in the air at the anode electrode is applied. The hydrogen ions generated by decomposing the above move from the anode electrode side to the cathode electrode side and react with oxygen inside the storage container 100 connected via the connection duct 201 to generate water, thereby generating water in the storage container 100. Reduces the oxygen in.

A flange portion 103 extending outward is formed on the peripheral edge of the upper surface opening 101 of the storage container 100, and the lid 130 abuts on the upper surface of the flange portion 103 via the sealing material 132, whereby the storage container 100 The upper surface opening 101 is closed.

On the outside of the left and right side walls of the storage container 100, the lid rail 104, the container upper leg portion 105, and the container lower leg portion 106 project outward in the width direction.

The lid rail 104 is a ridge extending in the front-rear direction below the flange portion 103, and is a rail body 104a extending substantially horizontally forward from the rear ends of the left and right side walls of the storage container 100, and a rail body 104a in front of the rail body 104a. It is provided with a rail recess 104b that is depressed further downward. The rail recess 104b forms a lid rail inclined surface 104c that inclines upward as the rail body 104a side (rear side) approaches the rail body 104a.

The lid rail inclined surface 104c is provided so that the inclination angle with respect to the horizontal direction (front-back direction) is smaller than the inclination angle φ with respect to the horizontal direction of the convex portion inclined surface 29a provided on the front side of the convex portion 29 of the lower container 27. The height dimension H of the inclined surface 104c is provided to be smaller than the protrusion dimension h from the upper end of the lower container 27 of the convex portion 29 (see FIG. 5).

The container upper leg 105 is located below the lid rail 104 and above the storage container 100, and is provided on the front and rear sides of the left and right side walls of the storage container 100, respectively. The container upper leg 105 is placed on the inner box rails 24b provided on the left and right inner wall surfaces of the vegetable compartment 24, and by sliding on the inner box rails 24b in the front-rear direction, the upper part of the storage container 100 can be moved in the front-rear direction. Support.

The container lower leg portion 106 is located below the container upper leg portion 105 and below the storage container 100, and is provided on the front and rear portions of the left and right side walls of the storage container 100, respectively. The container lower leg portion 106 is placed on a sliding surface 28 provided at the upper ends of the left and right side walls of the lower container 27, and by sliding on the sliding surface 28 in the front-rear direction, the lower portion of the storage container 100 can be moved in the front-rear direction. Support.

Further, in this example, a locking portion 106a that sinks upward is formed on the lower surface of the container lower leg portion 106 located on the front side, and in the closed state of the vegetable compartment door 24a as shown in FIG. 1, the entire storage container 100 is in the lower stage. The convex portion 29 of the lower container 27 is fitted into the locking portion 106a provided on the lower leg portion 106 of the container, which is located above the container 27, and the storage container 100 is locked to the lower container 27 in the front-rear direction.

When such a storage container 100 is opened from the state where the vegetable compartment door 24a shown in FIG. 1 is closed and the lower container 27 is pulled out of the refrigerator, the locking portion 106a of the container lower leg portion 106 becomes the lower container 27. Since it is locked to the convex portion 29, the storage container 100 is also pulled out of the refrigerator together with the lower container 27 (see FIG. 4).

Further, when the lower container 27 moves rearward with the closing operation of the vegetable compartment door 24a, if the convex portion 29 of the lower container 27 is fitted in the locking portion 106a of the container lower leg portion 106, the lower container 27 and the lower container 27 are together. The storage container 100 also moves rearward and is stored in the refrigerator, and the front container lower leg portion 106 is positioned behind the convex portion 29 of the lower container 27 (that is, the storage container 100 slides rearward with respect to the lower container 27). If it is in the moved state), the convex portion 29 of the lower container 27 fits into the locking portion 106a of the lower leg portion 106 of the container while the lower container 27 is moving backward due to the closing operation of the door, and then the storage container together with the lower container 27. The 100 also moves backward and is stored in the refrigerator.

As shown in FIGS. 2 and 3, the lid 130 has a substantially flat plate shape that covers the entire upper surface opening 101 of the storage container 100, and in this example, the frame portion 134 constituting the peripheral edge of the lid 130. And a plate portion 136 that covers the upper surface opening 101 of the storage container 100 inside the frame portion 134.

The frame portion 134 has a frame shape in which an opening 138 into which the plate portion 136 is fitted is formed at a position corresponding to the upper surface opening 101 of the storage container 100, and is formed of, for example, a synthetic resin material such as ABS or PP. Has been done.

An annular groove 140 that sinks upward is formed on the lower surface of the frame portion 134 so as to surround the opening 138, and the annular sealing material 132 is fitted in the annular groove 140. When the lid 130 covers the entire upper surface opening 101 of the storage container 100, the lower surface of the frame portion 134 faces the flange portion 103 in the vertical direction with the sealing material 132 in contact with the flange portion 103 of the storage container 100. , The space between the upper surface opening 101 of the storage container 100 and the lid 130 is sealed.

At the front of the left and right ends of the frame portion 134, a hanging portion 142 extending downward in the width direction from the flange portion 103 of the storage container 100 and a hanging portion 142 extending downward in the width direction from the lower portion of the hanging portion 142 toward the inside in the width direction, that is, storing. Sliding pins 144 projecting toward the left and right side walls of the container 100 are provided. The sliding pin 144 is placed on the upper surface of the lid rail 104 provided on the left and right side walls of the storage container 100, and slides on the sliding pin 144 in the front-rear direction to guide the opening / closing movement of the lid 130 in the front-rear direction.

Further, a lid leg portion 146 extending downward is provided at the rear portion of the left and right side ends of the frame portion 134. The lid leg portion 146 is located at a position corresponding to the inner box rail 24b provided on the inner wall surface of the vegetable compartment 24 in the width direction, and the lid 130 is closed to the upper surface opening 101 of the storage container 100. The lower end of the leg portion 146 is located at substantially the same height as the lower surface of the container upper leg portion 105 of the storage container 100 (the surface sliding on the inner box rail 24b). The lid leg portion 146 supports the rear portion of the lid body 130 by sliding on the upper surface of the inner box rail 24b when the lid body 130 is opened / closed (moved back and forth).

The plate portion 136 is fitted into the frame portion 134 and closes the opening 138 to form a plate-like body. In this example, the plate portion 136 is formed of a transparent glass or synthetic resin material and is formed of a material having a higher density than the frame portion 134. ing.

In such a lid 130, the storage container 100 is closed as shown in FIGS. 1 to 5, that is, the lid 130 is in contact with the flange portion 103 of the storage container 100 while the lid 130 is in contact with the storage container 100. The sliding pin 144 is located in the rail recess 104b of the lid rail 104 in a state of covering the entire surface of the upper surface opening 101. In this example, the lid body 130 presses the sealing material 132 against the flange portion 103 of the storage container 100 by its own weight to seal between the lid body 130 and the upper surface opening 101 of the storage container 100. Further, the lid leg portion 146 provided at the rear portion of the left and right side edges of the lid body 130 is mounted on the inner box rail 24b provided on the inner wall surface of the vegetable compartment 24 (see FIG. 4).

Then, when the lid body 130 is slid backward from the state where the lid body 130 closes the storage container 100, the sliding pin 144 located in the rail recess 104b of the lid rail 104 tilts the lid rail 104 as shown in FIG. By moving the surface 104c backward while sliding, the lid 130 is lifted upward and the sealing material 132 is separated from the flange portion 103 of the storage container 100.

At this time, if the convex portion 29 of the lower container 27 is fitted into the locking portion 106a of the container lower leg portion 106 provided in the storage container 100 as shown in FIGS. 4 and 5, the lid rail inclined surface The inclination angle θ with respect to the horizontal direction of 104c is set to be smaller than the inclination angle φ with respect to the horizontal direction of the convex inclined surface 29a, and the sliding resistance required for the sliding pin 144 to get over the inclined surface 104c of the lid rail is the container lower leg. Since the portion 106 is smaller than the sliding resistance required to get over the convex inclined surface 29a, the container can be slid even if the lid 130 is slid rearward and the sliding pin 144 is slid from the rail recess 104b to the rail body 104a. The locking portion 106a of the lower leg portion 106 and the convex portion 29 are not released from each other, and the storage container 100 does not move backward.

When the sealing material 132 was separated from the flange portion 103 of the storage container 100, the lid body 130 was supported by a sliding pin 144 whose front portion was mounted on the lid rail 104 and whose rear portion was mounted on the inner box rail 24b. By being supported by the lid leg portion 146, the sealing material 132 is kept away from the flange portion 103.

Then, when the lid body 130 is further slid rearward as shown in FIG. 7, the sliding pin 144 slides the rail body 104a of the lid rail 104 rearward, and the lid leg portion 146 slides the inner box rail 24b rearward. By sliding to, the lid 130 moves rearward while keeping the sealing material 132 of the lid 130 separated from the flange 103 of the storage container 100, and opens the upper surface opening 101 of the storage container 100. ..

Further, when the lid 130 as shown in FIG. 7 is located behind the storage container 100 and the lid 130 is slid forward from the state where the upper surface opening 101 of the storage container 100 is open, the sliding pin 144 becomes a lid rail. By sliding the rail body 104a of the 104 forward and the lid leg portion 146 sliding the inner box rail 24b forward, the sealing material 132 of the lid body 130 is separated from the flange portion 103 of the storage container 100. The lid body 130 moves forward while being maintained. Then, the sliding pin 144 slides the lid rail inclined surface 104c forward to move the lid body 130 downward, bring the sealing material 132 into contact with the flange portion 103 of the storage container 100, and the lid body 130 is the storage container. Block 100.

In the present embodiment, the case where the container upper leg 105 of the storage container 100 and the lid leg 146 of the lid 130 both slide on the same inner box rail 24b has been described, but the vegetable compartment 24 Two sets of inner box rails 24b may be provided on the inner wall surface of the container, and the container upper leg portion 105 and the lid leg portion 146 may slide on different rails.

In the present embodiment as described above, the lid rail 104 provided in the storage container 100 includes a rail body 104a and a rail recess 104b recessed below the rail body 104a, and a sliding pin provided in the lid 130. When 144 slides on the rail body 104a, the lid 130 slides while the sealing material 132 is separated from the flange portion 103 of the storage container 100, and when the sliding pin 144 moves from the rail body 104a to the rail recess 104b. , The sealing material 132 is brought into contact with the flange portion 103 of the storage container 100, and the lid 130 closes the storage container 100. Therefore, even if the lid 130 is slid with respect to the storage container 100, the sealing material 132 does not rub against the storage container 100, and wear deterioration can be suppressed.

Further, in the present embodiment, the frame portion 134 and the plate portion 136 constituting the lid body 130 are formed of separate members, and the plate portion 136 is formed of a material having a higher density than the frame portion 134, so that the frictional resistance is increased. By forming the frame portion 134 with a small material or a material that can be easily molded into a complicated shape, the sliding resistance of the sliding pin 144 and the lid leg portion 146 can be reduced, and the manufacturability of the lid body 130 can be improved. The weight of the lid body 130 is increased, and the sealing material 132 is pressed against the flange portion 103 of the storage container 100 by the weight of the lid body 130 to facilitate sealing between the lid body 130 and the upper surface opening 101 of the storage container 100. Moreover, since the plate portion 136 that covers the upper surface opening 101 of the storage container 100 is transparent, the inside can be visually observed with the lid 130 closing the storage container 100, and the usability can be improved.

Further, in the present embodiment, the lid leg portion 146 that supports the rear portion of the lid body 130 is placed on the inner box rail 24b provided on the inner wall surface of the vegetable compartment 24, and is mounted on the container upper leg portion 105 of the storage container 100. Since the rail that slides with the lid leg portion 146 is shared, the structure of the inner wall surface of the vegetable compartment 24 can be simplified, the formability of the inner box forming the storage space of the cabinet 11 is improved, and the internal volume of the refrigerator is improved. Can be expanded.

(Second Embodiment)
The second embodiment will be described with reference to FIGS. 8 and 9. The same or corresponding configurations as those in the first embodiment will be designated by the same reference numerals, and detailed description thereof will be omitted.

In the present embodiment, the storage container 100 is provided with an inclined portion 150 on the outside of the left and right side walls for downwardly pressing the lid 130 that closes the upper surface opening 101 of the storage container 100.

Specifically, the inclined portions 150 are provided at intervals above the lid rail inclined surface 104c, and the facing surfaces 150a vertically facing the lid rail inclined surface 104c are inclined downward as they go forward. ..

In the present embodiment, when the lid 130 is slid forward from the state where the upper surface opening 101 of the storage container 100 is open, the sliding pin 144 slides the rail body 104a of the lid rail 104 forward (see FIG. 8). ). Then, when the sliding pin 144 reaches the lid rail inclined surface 104c, it moves downward while moving forward along the lid rail inclined surface 104c, so that the sealing material 132 abuts on the flange portion 103 of the storage container 100. The lid 130 closes the storage container 100. At that time, as shown in FIG. 9, the sliding pin 144 abuts on the facing surface 150a of the inclined portion 150, but since the facing surface 150a is inclined downward as it goes forward, it is inclined with the forward movement. It is pressed downward by the portion 150.

As a result, the lid 130 crushes the sealing material 132 between the sealing material 132 and the flange portion 103 of the storage container 100 by a downward pushing force received from the inclined portion 150 in addition to its own weight, and the lid body 130 with the upper surface opening 101 of the storage container 100. The space can be sealed more reliably.

It should be noted that the same as the first embodiment except for the above-described configuration and action / effect, and detailed description thereof will be omitted.

(Other embodiments)
Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Refrigerator, 11 ... Cabinet, 12 ... Insulated partition wall, 20 ... Refrigerating space, 24 ... Vegetable room, 24a ... Vegetable room door, 24b ... Inner box rail, 25 ... Drawer container, 26 ... Evaporator room, 27 ... Lower Container, 28 ... Sliding surface, 29 ... Convex part, 29a ... Convex inclined surface, 100 ... Storage container, 101 ... Top opening, 103 ... Flange, 104 ... Lid rail, 104a ... Rail body, 104b ... Rail concave , 104c ... Lid rail inclined surface, 105 ... Container upper leg, 106 ... Container lower leg, 106a ... Locking part, 130 ... Lid body, 132 ... Sealing material, 134 ... Frame part, 136 ... Plate part, 138 ... Opening Part, 140 ... annular groove, 142 ... hanging part, 144 ... sliding pin, 146 ... lid leg part, 150 ... inclined part, 150a ... facing surface

Claims (6)

A storage chamber, a storage container provided on the storage chamber that opens on the upper surface, and an opening / closing portion that moves relative to the storage container along the upper surface of the storage container to open and close the upper surface opening of the storage container. A lower container provided below the storage container and slidably supporting the storage container in the same direction as the opening / closing portion is provided.
The storage container includes a rail on which the opening / closing portion slides to guide the movement of the opening / closing portion.
The rail has a rail body that slides the opening / closing part while the opening / closing part is separated from the storage container, and the opening / closing part that sinks below the rail body and slides the rail body. It is provided with a recess that moves downward at a position that closes the upper surface opening and brings the opening / closing portion into contact with the storage container.
The storage container is provided so as to be locked to the lower container by fitting the unevenness and to be movable as the lower container moves.
The lower container is provided with a convex portion protruding upward on a sliding surface on which the storage container slides.
The convex portion includes a convex portion inclined surface that inclines upward as the opening / closing portion opens the upper surface opening of the storage container.
The rail is provided with a rail inclined surface that inclines upward toward the rail body on the rail main body side of the concave portion, and the inclination angle of the rail inclined surface with respect to the horizontal direction is smaller than that of the convex inclined surface.
When the opening / closing portion slides with respect to the storage container in the direction of opening the upper surface opening of the storage container from the closed state, the sliding resistance required for the opening / closing portion to get over the recess is the said. A refrigerator that is smaller than the sliding resistance required to release the lock between the storage container and the lower container. The refrigerator according to claim 1, wherein the opening / closing portion includes a frame portion that slides on the rail and a plate portion that covers the upper surface opening of the storage container inside the frame portion. The refrigerator according to claim 2 , wherein the opening / closing portion has a higher density of the plate portion than the frame portion. The refrigerator according to claim 2 or 3 , wherein the plate portion is transparent. 1. A container rail that slidably supports the storage container in the same direction as the moving direction of the opening / closing portion is provided on the inner wall surface of the storage chamber, and the opening / closing portion includes a leg that slides the container rail. The refrigerator according to any one of 4 to 4 . The storage container includes an inclined portion that inclines downward as the opening / closing portion closes the upper surface opening of the storage container.
The refrigerator according to any one of claims 1 to 5 , wherein the inclined portion presses the opening / closing portion that closes the upper surface opening of the storage container downward.

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