Refrigerator

Abstract

To provide a refrigerator capable of completely closing a heat insulation door without being stopped midway by a user pushing the heat insulation door with his / her hand in a simple construction.SOLUTION: The refrigerator includes: a heat insulation box in which a storage chamber is formed; a heat insulation door 20 provided so as to be drawable in a cross direction while closing a front opening of the storage chamber; a storage container 15 arranged in the storage chamber so as to be pulled out together with the heat insulation door 20; a rail 22 mounted to a rear face of the heat insulation door 20 and extending in the cross direction; and a rail support part 112 provided on an inner face of the heat insulation box for supporting the rail 22 movably in the cross direction, wherein the rail support part 112 supports the rail 22 in a positional relation of inclining it upward in a frontward direction.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present disclosure relates to a refrigerator.

Background Art

[0002] There is known a refrigerator including a storage container that is pulled out together with a heat-insulating door with respect to a heat-insulating box body in which a storage chamber is formed inside (see, for example, Patent Document 1 and Patent Document 2). The front ends of a pair of rails are fixed to the heat-insulating door, and the rails are supported integrally with the heat-insulating door by rollers rotatably supported with respect to the heat-insulating box body and are supported so as to be movable in the front-rear direction of the refrigerator.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described conventional refrigerator, from the state where the heat-insulating door and the storage container are pulled out, after pushing the heat-insulating door back to its original position and closing it, it may stop halfway and the heat-insulating door may not be completely closed. Further, when providing a mechanical structure that does not stop halfway, it is necessary to provide the structure between the rail and the heat-insulating box body, but there is not enough space in this part, and it has been difficult to separately provide a mechanical structure.

[0005] An object of the present disclosure is to provide a refrigerator that can be configured to save space and allows a user to manually push a heat-insulating door to completely close the heat-insulating door without stopping halfway.

Means for Solving the Problems

[0006] (1) The present disclosure relates to a refrigerator including a heat-insulating box body having a storage chamber formed therein, a heat-insulating door that closes a front opening of the storage chamber and is provided to be pullable in the front-rear direction, a storage container disposed inside the storage chamber and pulled out together with the heat-insulating door, a rail attached to the rear surface of the heat-insulating door and extending in the front-rear direction, and a rail support portion provided on an inner surface of the heat-insulating box body and supporting the rail to be movable in the front-rear direction, wherein the rail support portion supports the rail in a positional relationship in which the rail is inclined upward toward the front direction.

[0007] According to the refrigerator of (1), since the rail support portion supports the rail in a positional relationship in which the rail is inclined upward toward the front direction, when the heat-insulating door is open, a user who grips the heat-insulating door can move the heat-insulating door backward by its own weight only by releasing the hand, and it becomes possible to surely move the heat-insulating door to the fully closed position. Further, a configuration that enables this can be realized in a space-saving manner.

[0008] (2) A stopper provided on the rail and contacting the rail support portion at a predetermined position when the rail is moved forward to prevent the rail from moving forward, and a protrusion that can protrude from and retract into the rail and can contact the rail support portion at a position opposite to the stopper with respect to the rail support portion when the rail is located at the fully open position when the heat-insulating door is pulled out and fully opened. The refrigerator according to (1) includes the protrusion.

[0009] According to the refrigerator of (2), the stopper can prevent the rail from moving forward beyond the fully open position and prevent the storage container, the heat-insulating door, and the rail from coming off the heat-insulating box body and falling. Further, when the rail support portion contacts the protrusion, the storage container, the heat-insulating door, and the rail can be maintained in the fully open position.

[0010] (3) The protruding portion is disposed through the through-hole of the rail and fixed to the free end of the leaf spring. With the base portion of the leaf spring fixed to the rail, the refrigerator according to (1) is configured to be able to protrude from and retract into the rail.

[0011] (4) The free end of the leaf spring is in a forward position with respect to the base portion of the leaf spring in the refrigerator according to (3).

[0012] (5) The rail support portion is constituted by a roller in the refrigerator according to (1).

[0013] (3)(4)(5) According to the refrigerator, when the user grips the heat-insulating door by hand and pulls it out integrally with the storage container and the rail, when the rail support portion abuts against the protruding portion of the rail, the protruding portion of the protruding portion protruding from the rail is pushed up so that the amount of protrusion decreases, and the leaf spring can be elastically deformed. As a result, the protruding portion can cross over the roller from the rear side to the front side of the roller, and the rail can be further pulled forward.

[0014] Also, when the rail is at the position where the roller abuts against the stopper, if the user releases the hand that was gripping the heat-insulating door, since the rail is inclined downward in the rearward direction, due to its own weight, the storage container, the heat-insulating door, and the rail move rearward. Thereafter, the roller abuts against the protruding portion protruding below the rail while rotating from the rear side. At this time, since the value of the spring constant of the leaf spring has a predetermined value, it is possible to configure the protruding amount of the protruding portion downward from the lower surface of the rail not to change even when the roller abuts against the protruding portion due to the elastic force of the leaf spring. For this reason, it is possible to temporarily prevent the forward movement of the rail in a state where the roller abuts against the protruding portion.

[0015] Also, when the forward movement of the rail is temporarily blocked and the user manually pushes the heat-insulating door backward to apply a force, the rotating roller enables the protrusion to be pushed against the elastic force of the leaf spring so that the protrusion amount of the protrusion from the rail decreases. As a result, the protrusion can pass over the roller from the front side to the rear side of the roller, and the rail is released from the fully open position and can move to the fully closed position.

[0016] In addition, since a thin leaf spring is used as the biasing member, it is possible to avoid interference with the members provided on the heat-insulating box body when the rail moves in the front-rear direction.

[0017] (6) The refrigerator according to (1), further comprising a deceleration device that decelerates the backward movement of the heat-insulating door immediately before the heat-insulating door pulled forward moves backward to close the front opening of the storage chamber.

[0018] (7) The refrigerator according to (6), wherein the deceleration device is constituted by an air damper.

[0019] (6)(7) According to the refrigerator, the storage container, the heat-insulating door, and the rail that have been accelerating and moving backward vigorously are decelerated by contacting the air damper, and the heat-insulating door can be softly closed. [Advantages of the Invention]

[0020] According to the present disclosure, it is possible to provide a refrigerator that can be configured to save space and allows the user to manually push the heat-insulating door to completely close the heat-insulating door without stopping halfway. [Brief Description of the Drawings]

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

MODE FOR CARRYING OUT THE INVENTION

[0022] Hereinafter, the refrigerator according to the embodiment of the present disclosure will be described with reference to the drawings. In the following description, the left direction shown in FIG. 1 in the width direction of the refrigerator 1 is defined as the left direction (L), and the opposite direction is defined as the right direction (R). Further, the depth direction of the refrigerator 1 (the direction from the front to the back of the paper surface shown in FIG. 1) is defined as the rear direction (Rr), and the opposite direction is defined as the front direction (Fr). Further, the upward direction shown in FIG. 1 in the height direction of the refrigerator 1 is defined as the upward direction (Up), and the opposite direction is defined as the downward direction (Dw).

[0023] As shown in FIG. 1, the refrigerator 1 includes a heat-insulating box body 11 with a storage chamber formed therein that opens forward and has a refrigerating chamber 12 located on the upper side and a freezing chamber 13 located on the lower side, an upper-stage heat-insulating door 18, a middle-stage heat-insulating door 19, and a lower-stage heat-insulating door 20. The refrigerator 1 has a structure divided into three stages: an upper stage that can be opened and closed by the upper-stage heat-insulating door 18, a middle stage that can be opened and closed by the middle-stage heat-insulating door 19, and a lower stage that can be opened and closed by the lower-stage heat-insulating door 20.

[0024] The upper-stage heat-insulating door 18 is a rotary door that can rotate to the right around the axes located at the upper and lower parts of the front end of the right side surface of the heat-insulating box body 11. The middle-stage heat-insulating door 19 and the lower-stage heat-insulating door 20 are drawer-type doors that can be pulled out and pushed back by moving in the front-rear direction to open forward. The upper-stage heat-insulating door 18, the middle-stage heat-insulating door 19, and the lower-stage heat-insulating door 20 can close the front opening of the storage chamber of the heat-insulating box body 11.

[0025] The heat-insulating box body 11 is composed of, for example, a frame made of a steel plate and a vacuum heat-insulating material housed inside the frame. The vacuum heat-insulating material may not be provided. A machine room housing a compressor (not shown) is provided between the frame of the heat-insulating box body 11 that constitutes the lower part of the refrigerator 1 and the vacuum heat-insulating material, and a cooling chamber housing an evaporator (not shown) is formed in the part of the heat-insulating box body 11 that constitutes the back side of the refrigerator 1.

[0026] The evaporator and the compressor are connected via an expansion means and a condenser (not shown) and refrigerant pipes to constitute a vapor compression refrigeration cycle. A blower is disposed above the cooling chamber, and the blower blows the cold air inside the cooling chamber cooled by the evaporator to the upper and lower parts of the refrigerator 1. Below the evaporator, a defrosting heater (not shown) for melting the frost on the evaporator is disposed.

[0027] Inside the freezer compartment 13, a storage container 15 is arranged. Similarly, inside the refrigerator compartment 12, a storage container (not shown) is arranged. The storage container 15 and the storage container (not shown) are containers for storing stored items such as food. The front end of the storage container 15 is fixed to the lower heat-insulating door 20 and is supported by a pair of rails 22 extending in the front-rear direction. The front end of the storage container (not shown) is fixed to the middle heat-insulating door 19 and is supported by a pair of rails (not shown) extending in the front-rear direction. Hereinafter, since the middle heat-insulating door 19 and the lower heat-insulating door 20, which are pull-out doors, have the same configuration, only the lower heat-insulating door 20 will be described, and the description of the middle heat-insulating door 19 will be omitted.

[0028] As shown in FIG. 2 and the like, a pair of rails 22 are provided. The rails 22 are long members formed by bending a plate-like member in the width direction and are made of a metal plate. The front end portions of the rails 22 are respectively fixed to the left and right end portions of the rear surface of the lower heat-insulating door 20, one by one. The pair of rails 22 support the left and right side portions of the storage container 15, one by one. Thereby, the lower heat-insulating door 20, the rails 22, and the storage container 15 supported by the rails 22 are integrally pullable forward and configured to be pushable backward.

[0029] At the rear end portion of the rail 22, as shown in FIG. 3 and the like, a rail-side roller 223 whose rotation axis points in the left-right direction is rotatably supported with respect to the rail 22. Further, at the rear end portion of the rail 22, as shown in FIG. 7 and the like, a contact piece 2221 formed by a metal plate bent in an L shape is provided. The contact piece 2221 is fixed to the rear end portion of the rail 22 and has a contact surface parallel to the vertical direction and the horizontal direction.

[0030] As shown in FIG. 3 and the like, a stopper 224 is provided at a portion in front of the rear end portion of the rail 22. The stopper 224 is provided such that a part of the rail 22 protrudes downward in a triangular shape. When the rail 22 is pulled forward and moves, the roller 112 described later abuts against the stopper 224 so as to prevent the rail 22 from moving forward. By this abutment, it is possible to prevent the rail 22 from being pulled out too far forward and falling off.

[0031] As shown in FIG. 5, a protrusion 2251 is provided at a portion of the rail 22 further in front of the portion where the stopper 224 is provided. As shown in FIG. 6, the protrusion 2251 is constituted by a cylindrical member fixed to the front end portion which is the tip of a leaf spring 2252 as a cantilever spring whose base is fixed to the rail 22 by a screw 2253. That is, the protrusion 2251 is fixed to the free end in the forward position with respect to the base of the leaf spring 2252. The protrusion 2251 is configured to be able to protrude and retract, with the amount of protrusion downward from the rail 22 being variable in a state of passing through a through hole formed in the rail 22 due to elastic deformation of the leaf spring 2252.

[0032] The leaf spring 2252 has a value of a predetermined spring constant. That is, when the roller 112 abuts against the protrusion 2251 while the rail 22 is being pulled forward, the protrusion 2251 is pushed upward by this abutment and the leaf spring 2252 elastically deforms. However, when the rail 22 at the position where the roller 112 abuts against the stopper 224 tries to move backward, and there is no force such as being pushed by hand from the outside acting on the lower heat insulation door 20 and it tries to move backward only by its own weight, when the roller 112 abuts against the protrusion 2251, the value is such that the leaf spring 2252 does not elastically deform. When the roller 112 is located between the protrusion 2251 and the stopper 224, the storage container 15, the lower heat insulation door 20, and the rail 22 are in the fully open position as shown in FIG. 4.

[0033] Here, the "self-weight" means the total weight of the stored items (not shown), the storage container 15, the lower heat insulation door 20, the rail 22, and the members provided on these and integrated with them and pulled out or pushed back in the front-rear direction when the storage container 15 contains the stored items (not shown) that can be stored in the storage container 15. The protrusion 2251, the leaf spring 2252, and the screw 2253 constitute a pull-out state maintaining member 225 that temporarily maintains the state in which the storage container 15, the lower heat insulation door 20, and the rail 22 are pulled out to the front side and temporarily prevents them from retreating to the rear side.

[0034] On the inner surface of the heat insulation box body 11, as shown in FIG. 2, roller support members 1113 made of metal plates are respectively fixed. Further, on the inner surface of the heat insulation box body 11, a guide rail 113 (see FIGS. 2 and 3, etc.) is provided on which the rail-side roller 223 (see FIG. 3, etc.) of the rail 22 is placed to guide the front-rear movement of the rail 22 and the rail-side roller 223. The upper surface of the guide rail 113 has a plane extending horizontally in the front-rear direction. The rail-side roller 223 is movable in the front-rear direction by rotating on the horizontally extending plane of the guide rail 113.

[0035] Rollers 112 as rail supports are rotatably supported on the roller support members 1113, respectively. That is, the rollers 112 are provided on the inner surface of the heat insulation box body 11 via the roller support members 1113 and the like. When the rollers 112 rotate, the rail 22 is supported so as to be movable in the front-rear direction on the rollers 112.

[0036] When the rollers 112 rotate, the rail 22 moves forward, and when the rollers 112 contact the stopper 224, the forward movement of the rail 22 stops, and it is in a state of having moved to the fully open position. When the rail 22 is moved backward from this fully open position and reaches the position where the rail 22 has moved to the rearmost side (hereinafter referred to as the "fully closed position"), the lower heat insulation door 20 closes the front opening of the storage chamber of the heat insulation box body 11.

[0037] The roller 112 supports the rail 22 in a positional relationship that inclines the rail 22 upward in the forward direction. Specifically, for example, when the rail 22 is in the fully open position, it is not in the state where the rail 22 is in a horizontal positional relationship as shown on the left side of FIG. 8. As shown on the right side of FIG. 8, due to the position of the roller 112 being set high, when the rail 22 is in the fully open position, it is configured to incline upward in the forward direction. Note that when the rail 22 is in a position other than the fully open position, it similarly inclines upward in the forward direction.

[0038] As shown in FIG. 7, an air damper 227 as a speed reduction device is fixedly supported on the speed reduction device support portion 1114. Specifically, the speed reduction device support portion 1114 is composed of a metal plate bent in an L-shape. The base side of the bent speed reduction device support portion 1114 has a surface parallel to the front-rear direction and the up-down direction and is fixed to the left and right inner surfaces of the rear end portion of the heat insulation box body 11, and a pair of flat portions extending vertically from the cylinder 2271 of the air damper 227 are fixed to this surface.

[0039] The tip portion 2272 of the air damper 227 abuts against the contact piece 2221 when the rail 22 moves from the fully open position to the rear side and reaches a position immediately before the fully closed position. Thereby, when the lower heat insulation door 20 closes the front opening of the storage chamber 13, the air damper 227 decelerates the backward movement of the rail 22, the storage container 15, and the lower heat insulation door 20 to perform soft close.

[0040] Next, the opening and closing operations of the storage container 15, the lower heat-insulating door 20, and the rail 22 in the refrigerator 1 with the above configuration will be described. First, as shown in FIG. 1 and the like, from the state where the lower heat-insulating door 20 closes the front opening of the storage chamber 13, that is, the state where the storage container 15, the lower heat-insulating door 20, and the rail 22 are in the fully closed position, the user grips the lower heat-insulating door 20 by hand and pulls it forward integrally with the storage container 15 and the rail 22. As the rail 22 is pulled forward and moves, the roller 112 abuts on the protrusion 2251 in the state where the amount of protrusion below the rail 22 is the largest, while rotating from the front side.

[0041] Thereby, the protrusion 2251 is pushed up so that the amount of protrusion of the protrusion 2251 protruding below the rail 22 decreases, and the leaf spring 2252 is elastically deformed. Then, the protrusion 2251 passes relatively through the position of the roller 112 from the rear side to the front side of the roller 112, and the rail 22 can be further pulled forward. Then, when the rail 22 is further pulled forward, it abuts on the stopper 224. At this time, due to the biasing force of the leaf spring 2252, the protrusion 2251 returns to the state where the amount of protrusion of the protrusion 2251 protruding below the rail 22 before the roller 112 abuts is the largest.

[0042] After the user releases the hand that was gripping the lower heat-insulating door 20, since the rail 22 is inclined downward in the rearward direction, due to its own weight, the storage container 15, the lower heat-insulating door 20, and the rail 22 start to move rearward integrally. Then, the roller 112 abuts on the protrusion 2251 protruding below the rail 22 while rotating from the rear side.

[0043] At this time, since the leaf spring 2252 has a value of a predetermined spring constant, due to the elastic force of the leaf spring 2252, even when the roller 112 abuts on the protrusion 2251, the amount of protrusion of the protrusion 2251 downward from the lower surface of the rail 22 does not change. Therefore, when the roller 112 abuts on the protrusion 2251, the forward movement of the rail 22 is temporarily blocked.

[0044] In this state, when the user manually pushes the lower heat-insulating door 20 backward to apply a force to the lower heat-insulating door 20, the protruding portion 2251 is pushed upward by the rotating roller 112 against the elastic force of the leaf spring 2252 so that the amount of protrusion of the protruding portion 2251 downward from the lower surface of the rail 22 decreases. As a result, the protruding portion 2251 passes over and beyond the position of the roller 112 from the front side to the rear side of the roller 112. Then, due to the inclination of the rail 22 and its own weight, the storage container 15, the lower heat-insulating door 20, and the rail 22 move while accelerating backward.

[0045] When the rail 22 approaches the fully closed position, at a position immediately before the fully closed position of the rail 22, the tip portion 2272 of the air damper 227 abuts against the contact piece 2221 at the rear end portion of the rail 22. Then, the storage container 15, the lower heat-insulating door 20, and the rail 22, which had been accelerating and moving vigorously backward, are decelerated by the abutment against the tip portion 2272 of the air damper 227, the lower heat-insulating door 20 closes softly, and the rail 22 reaches the fully closed position.

[0046] According to the refrigerator 1 according to the present embodiment having the above configuration, the following effects can be obtained. In the refrigerator 1, the roller 112 as the rail support portion supports the rail 22 in a positional relationship in which the rail 22 is inclined upward in the forward direction. That is, the roller 112 as the rail support portion is arranged at a position slightly higher than that of a conventional refrigerator, specifically, for example, about 6 mm higher. As a result, when the lower heat-insulating door 20 is open, the user who grips the lower heat-insulating door 20 can move the lower heat-insulating door 20 backward by its own weight only by releasing the hand, and it becomes possible to surely move the lower heat-insulating door 20 to the fully closed position. Further, a configuration that enables this can be realized in a space-saving manner.

[0047] Further, the refrigerator 1 is provided with a stopper 224 that is provided on the rail 22 and abuts against the roller 112 at a predetermined position when the rail 22 is moved forward, thereby preventing the rail 22 from moving forward, and a protrusion 2251 that can protrude from and retract into the rail 22 and can abut against the roller 112 at a position opposite to the stopper 224 with respect to the roller 112 when the rail 22 is located at the fully open position when the lower heat insulation door 20 is pulled out and fully opened.

[0048] As a result, the stopper 224 can prevent the rail 22 from moving forward beyond the fully open position, and prevent the storage container 15, the lower heat insulation door 20, and the rail 22 from coming off the heat insulation box body 11 and falling. Further, when the roller 112 abuts against the protrusion 225, the storage container 15, the lower heat insulation door 20, and the rail 22 can be maintained in the fully open state.

[0049] Further, the protrusion 225 is disposed through a through hole of the rail 22 and fixed to the free end of the leaf spring 2252. The base of the leaf spring 2252 is fixed to the rail, so that the protrusion 225 can protrude from and retract into the rail 22. The free end of the leaf spring 2252 is located in the forward position with respect to the base of the leaf spring 2252, and the rail support portion is constituted by the roller 112.

[0050] Thus, when the user grips the lower heat insulation door 20 by hand and pulls it out integrally with the storage container 15 and the rail 22, when the roller 112 abuts against the protrusion 2251 rather than the rail 22, the protrusion 2251 is pushed up so that the protruding amount of the protrusion 2251 protruding below the rail 22 decreases, and the leaf spring 2252 can be elastically deformed. As a result, the protrusion 2251 can move from the rear side to the front side of the roller 112 and over the roller 112, and the rail 22 can be pulled out further forward than the position of the protrusion 2251.

[0051] Also, when the rail 22 is at the position where the roller 112 abuts against the stopper 224, if the user releases the hand that was holding the lower heat insulation door 20, since the rail 22 is inclined downward in the rearward direction, due to its own weight, the storage container 15, the lower heat insulation door 20, and the rail 22 move rearward. Thereafter, the roller 112 abuts against the protrusion 2251 protruding below the rail 22 while rotating from the rear side. At this time, since the leaf spring 2252 has a value of a predetermined spring constant, due to the elastic force of the leaf spring 2252, even when the roller 112 abuts against the protrusion 2251, the amount of protrusion of the protrusion 2251 downward from the lower surface of the rail 22 can be made not to change. For this reason, it becomes possible to temporarily prevent the forward movement of the rail 22 in a state where the roller 112 is in contact with the protrusion 2251.

[0052] Also, when the forward movement of the rail 22 is temporarily blocked, if the user pushes the lower heat insulation door 20 rearward with the hand to apply a force, the rotating roller 112 can push the protrusion 2251 upward so that the amount of protrusion of the protrusion 2251 downward from the lower surface of the rail 22 decreases against the elastic force of the leaf spring 2252. As a result, the protrusion 2251 can pass over the position of the roller 112 from the front side to the rear side of the roller 112, and it becomes possible to be released from the fully open position.

[0053] Also, since the thin leaf spring 2252 is used as the biasing member, it becomes possible to avoid interference with the guide rail 113 when the rail 22 moves in the front-rear direction.

[0054] Further, the refrigerator 1 is provided with a deceleration device that decelerates the backward movement of the lower heat-insulating door 20 immediately before the lower heat-insulating door 20 pulled forward moves backward to close the front opening of the storage chamber 13. The deceleration device is constituted by an air damper 227. Thereby, the storage container 15, the lower heat-insulating door 20, and the rail 22 that had been moving backward rapidly with acceleration are decelerated by coming into contact with the tip portion 2272 of the air damper 227, and the lower heat-insulating door 20 can be softly closed.

[0055] The present invention is not limited to the above-described embodiments. For example, although the protrusion 2251 was provided on the leaf spring 2252, it is not limited to this configuration. For example, as shown in FIG. 9, the protrusion 2251A may be biased downward by a compression spring 2252A.

[0056] Specifically, the upper end portion of the protrusion 2251A penetrates through a through hole formed in the horizontal portion of the metal plate 225A bent in an L shape. The vertical portion of the metal plate 225A bent in an L shape is fixed to the rail 22 by a screw 2254A. The compression spring 2252A is provided so as to wind around the upper portion of the protrusion 2251A.

[0057] The upper end portion of the compression spring 2252A abuts against the horizontal portion of the metal plate 225A bent in an L shape, and the lower end portion of the compression spring 2252A abuts against a flange portion provided at an intermediate portion in the longitudinal direction of the protrusion 2251. The portion below the flange portion can protrude and retract downward from the through hole formed in the horizontal portion of the metal plate 225A bent in an L shape due to the elastic deformation of the compression spring 2252A by coming into contact with the roller 112 in the same manner as the protrusion 2251 in the above-described embodiment.

[0058] Also, in the present embodiment, the air damper 227 is provided and the lower heat insulation door 20 is configured to softly close, but it is not limited thereto. For example, when there is a slamming sound when the lower heat insulation door 20 closes and the user wants to obtain a sense of security that the lower heat insulation door 20 has surely closed behind their back, a configuration without the air damper 227 may be adopted.

[0059] Also, in the present embodiment, when the user pushes the lower heat insulation door 20 backward by hand, the state where the rail 22 is arranged at the fully open position is released, but it is not limited thereto. For example, it may be configured such that when the user lightly presses down the lower heat insulation door 20 downward by hand and then releases the hand, the state where the rail 22 is arranged at the fully open position is released.

Explanation of Reference Numerals

[0060] 1... Refrigerator 11... Heat insulation box body 13... Freezer compartment (storage compartment) 15... Storage container 19... Middle heat insulation door 20... Lower heat insulation door 22... Rail 112... Roller (rail support part) 227... Air damper (deceleration device)

Claims

1. A heat-insulating box body with a storage chamber formed inside, A heat-insulating door that closes the front opening of the storage chamber and is provided so as to be pullable in the front-rear direction, A storage container disposed inside the storage chamber and pulled out together with the heat-insulating door, A rail attached to the rear surface of the heat-insulating door and extending in the front-rear direction, A rail support portion provided on the inner surface of the heat-insulating box body and supporting the rail so as to be movable in the front-rear direction, The refrigerator in which the rail support portion supports the rail in a positional relationship that inclines the rail upward in the forward direction.

2. A stopper provided on the rail and contacting the rail support portion at a predetermined position when the rail is moved forward to prevent the forward movement of the rail, A protrusion that can protrude from and retract into the rail so as to be able to contact the rail support portion at a position opposite to the stopper with respect to the rail support portion when the rail is located at the fully open position when the heat-insulating door is pulled out and fully opened. The refrigerator according to claim 1, comprising the protrusion.

3. The protrusion is disposed through a through hole of the rail and fixed to the free end of a leaf spring, and the base of the leaf spring is fixed to the rail, whereby the protrusion is configured to be able to protrude from and retract into the rail. The refrigerator according to claim 2.

4. The free end of the leaf spring is in a forward position with respect to the base of the leaf spring. The refrigerator according to claim 3.

5. The rail support portion is constituted by a roller. The refrigerator according to claim 1.

6. A deceleration device that decelerates the backward movement of the heat-insulating door immediately before the heat-insulating door pulled forward moves backward to close the front opening of the storage chamber. The refrigerator according to claim 1, comprising the deceleration device.

7. The refrigerator according to claim 6, wherein the speed reduction device is constituted by an air damper.

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