refrigerator

Abstract

To provide a refrigerator provided with a shelf mechanism that allows easy removal of shelf boards while suppressing jumping of the shelf boards.SOLUTION: The refrigerator includes: shelf receiving parts 20 provided on side surface walls 17 facing each other in an inner box 16; and shelf boards 21 arranged across the shelf receiving parts 20. The shelf receiving parts 20 include: sliding surfaces 33 which are formed so as to extend along the depth direction of the inner box 17, and on which the side surface sides of the shelf board slide; a shelf receiving side positioning parts 34 which are formed on the sliding surfaces 33 and determine predetermined positions in the depth direction of the shelf boards; and shelf receiving side position regulating protrusions 36 formed at positions a predetermined length away from the sliding surfaces of the shelf boards on shelf receiving side positioning portion 34 sides. The shelf boards 21 have: shelf board side positioning parts 25 corresponding to the shelf receiving side positioning parts 34; and shelf board side position regulating protrusions 29 which are formed on the side surface sides of the shelf boards 21, are located between the sliding surfaces 33 and the position regulating protrusions 36 when the shelf boards 21 are in predetermined positions, and are formed in areas including projection planes from the shelf receiving side position regulating protrusions 36 to the sliding surfaces 33.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a refrigerator for refrigerating food and beverages, and more particularly to a refrigerator having shelves arranged inside the refrigerator and a shelf mechanism for holding the shelves in a removable manner. [Background technology]

[0002] In a typical refrigerator, shelves are attached inside the refrigerator so that they can be freely pulled out, and foods and beverages are placed and stored on these shelves. A refrigerator equipped with such a shelf mechanism is described, for example, in Japanese Patent Laid-Open Publication No. 8-233453 (Patent Document 1).

[0003] The patent document shows a shelving mechanism that includes: a shelf plate arranged inside the refrigerator; shelf support portions that are provided facing both side walls inside the refrigerator and extend in the depth direction of the refrigerator to support the shelf plate so that it can be pulled out; recesses provided in two locations in the depth direction of the shelf support portions; anti-rotation flanges that protrude from the side edges of the bottom surface of the shelf plate and embrace the shelf support portions together with the sliding portions of the shelf plate from above and below to prevent the shelf plate from rotating; and engaging protrusions that are provided forward of the flanges on the sliding surface of the shelf plate and selectively engage with the recesses in the shelf support portions to hold the shelf plate in the pulled-out position or the stored position. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-233453 Summary of the Invention [Problem to be solved by the invention]

[0005] In the shelving mechanism disclosed in Patent Document 1, the flange formed on the shelf to prevent rotation is positioned on the underside of the shelf support. In other words, the shelf support is sandwiched between the shelf and the flange. This poses a problem in that when attempting to remove the shelf, the shelf cannot be easily removed unless the shelf is pulled all the way to the front end of the shelf support, making removal cumbersome. Therefore, there is a need for a shelving mechanism that prevents the shelf from bouncing up and allows for easy removal without moving the shelf significantly.

[0006] An object of the present invention is to provide a refrigerator equipped with a shelf mechanism that prevents the shelf from bouncing up and allows the shelf to be easily removed without moving it significantly. [Means for solving the problem]

[0007] The present invention provides a storage unit comprising an inner box forming a storage compartment, an opening / closing door for opening and closing the inner box, a pair of shelf support portions provided on opposing side walls of the inner box, and a shelf board arranged to span the pair of shelf support portions, the shelf support portions being formed to extend along the depth direction of the inner box, and having sliding surfaces on which side ends of the shelf board are placed and on which the shelf board slides, shelf support side positioning portions formed on the sliding surfaces to determine a predetermined position of the shelf board in the depth direction, and a shelf support side positioning portion formed on the shelf support side positioning portion at a position spaced a predetermined length from the sliding surface. The shelf has a position regulating protrusion, and the shelf has a shelf side positioning portion formed on the side end of the shelf opposite the top surface on which food and beverages are placed, so as to correspond to the shelf support side positioning portion, and a shelf side position regulating protrusion formed on the side end of the shelf, which is located between the sliding surface and the shelf support side position regulating protrusion when the shelf is assembled in a predetermined position relative to the shelf support portion, and which is located within the area of ​​the projection surface of the shelf support side position regulating protrusion in the direction from the shelf support side position regulating protrusion toward the sliding surface. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a refrigerator equipped with a shelf mechanism that prevents the shelf from bouncing up and allows the shelf to be easily removed without having to move it significantly. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an external perspective view illustrating an internal configuration of a refrigerator according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view showing the front of the refrigerator in FIG. 1, with the opening and closing door omitted. [Figure 3] FIG. 2 is a top perspective view of a shelf board used in an embodiment of the present invention. [Figure 4] FIG. 2 is a bottom perspective view of a shelf board used in an embodiment of the present invention. [Figure 5] FIG. 2 is a side view of a shelf board used in an embodiment of the present invention. [Figure 6] FIG. 2 is a top perspective view of the short side of a shelf board used in an embodiment of the present invention. [Figure 7] FIG. 2 is a bottom perspective view of the short side of a shelf board used in an embodiment of the present invention. [Figure 8] FIG. 10 is a top perspective view of a shelf support portion formed on a side wall of an inner box used in an embodiment of the present invention. [Figure 9] FIG. 10 is a side view of a shelf support portion formed on a side wall of an inner box used in an embodiment of the present invention. [Figure 10] 10A and 10B are explanatory diagrams illustrating the movement of a shelf board when the shelf board according to an embodiment of the present invention is incorporated into a shelf support portion. [Figure 11] FIG. 1 is a top perspective view showing a first arrangement example of shelf boards in an embodiment of the present invention. [Figure 12] FIG. 10 is a top perspective view showing a second arrangement example of shelf boards in an embodiment of the present invention. [Figure 13] FIG. 10 is a top perspective view showing a third example of shelf board arrangement in an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiment, and various modifications and application examples within the technical concept of the present invention are also included within its scope.

[0011] 1 and 2 show the internal configuration of a refrigerator according to an embodiment of the present invention. This refrigerator is a small refrigerator that can be installed in a bedroom, living room, etc., and has a refrigeration function. While a typical household refrigerator has a refrigerator compartment, a vegetable compartment, a freezer compartment, etc., this embodiment has only a refrigerator compartment. However, it goes without saying that the present invention can also be applied to a typical household refrigerator as needed.

[0012] 1 and 2, refrigerator 10 is surrounded by outer box 14, which is made up of bottom panel 11, side panels 12, a back panel (not shown), and top panel 13, to form storage compartment 15. Furthermore, storage compartment 15 is formed by inner box 16 placed inside outer box 14, and insulation material made of vacuum insulation material, foamed resin, or the like is installed between outer box 14 and inner box 16. Note that in FIGS. 1 and 2, a well-known door for opening and closing storage compartment 16 is not shown.

[0013] The inner box 16 is formed with a pair of side walls 17 facing each other when viewed in a direction perpendicular to the depth direction, and a back wall 18 perpendicular to the depth direction. A cold air outlet opening 19 is formed in the back wall 18, through which cold air generated by a refrigeration cycle (not shown) is blown out. The pair of side walls 17 are formed with three shelf support sections 20 arranged vertically.

[0014] A shelf board 21 is placed across the pair of shelf support parts 20 on each tier, allowing food, beverages, etc. to be placed on it. Each shelf board 21 is integrally formed by injecting synthetic resin into a mold.

[0015] The shelf board 21 has a side end (short side 22S perpendicular to the longitudinal direction of the shelf board 21) formed in the same direction as the depth direction of the shelf board 21, which is slidably placed on the shelf support portion 20, and the shelf board 21 can be removed by pulling it out toward the front (towards the opening and closing door).

[0016] The shelf board 21 spanning the pair of shelf support portions 20 is divided into two in the depth direction, and these have a shape that allows their positions to be interchanged, for example, the same shape. That is, the front shelf board 21F can be used as the back shelf board 21R. Also, the back shelf board 21R can be used as the front shelf board 21F. Furthermore, the back shelf board 21R and / or the front shelf board 21F of a certain tier can be placed in the position of the back shelf board 21R and / or the front shelf board 21F of another tier.

[0017] It is also possible to remove either the front shelf 21F or the back shelf 21R and stack two shelves on top of the other back shelf 21R or the front shelf 21F. The shelf supports 20 adjacent to each other are spaced apart in the vertical direction to an extent that multiple shelves 21 can be stacked. Furthermore, multiple shelves 21F, 21R arranged on each level can be stacked as needed, which improves the versatility of the shelf 21 arrangement.

[0018] In this way, the inner box 16 is provided with multiple tiers of, for example, identically configured shelf boards 21 and shelf support portions 20 spaced apart at a predetermined interval in the vertical direction, and the shelf boards 21 are arranged in at least two rows in the depth direction, and each shelf board 21 is removable from the shelf support portion 20.

[0019] Next, the configuration of the shelf board 21 will be described with reference to Figures 3 to 7. Figure 3 shows the top surface of the shelf board 21 as seen obliquely from above, and Figure 4 shows the underside of the shelf board 21 as seen obliquely from above. Also, Figure 5 shows the side end of the shelf board 21, Figure 6 shows the top surface of the side end of the shelf board 21 as seen obliquely from above, and Figure 7 shows the underside of the side end of the shelf board 21 as seen obliquely from above.

[0020] 3 to 7, shelf boards 21F, 21R (hereinafter simply referred to as shelf board 21) are formed in an elongated rectangular shape, and have a pair of opposing long sides 22L and a pair of opposing short sides 22S. As shown in FIG. 2, long sides 22L are bridged over a pair of shelf support portions 20, and the short sides 22S are supported by the shelf support portions 20. Short sides 22S form the "side edges" of shelf board 21. Hereinafter, these may also be referred to as short sides or side edges.

[0021] 3, a pair of positioning portion storage grooves 24 are formed on the short side 22S of the upper surface 23 (the surface on which food and beverages are placed) of the shelf 21. As described above, these positioning portion storage grooves 24 are grooves into which the shelf-side positioning portions 25 of one shelf 21 are stored when the shelf 21 is stacked, and also function to position the two shelf 21 when they are stacked.

[0022] The shelf 21 is formed in a shape that is symmetrical with respect to a line segment (LS) that is parallel to the short side 22S and passes through the midpoint of the long side 22L, and is configured to be attached to the shelf support 20 even when the shelf is turned left and right, improving usability. Specifically, for example, some or all of the positioning portion storage groove 24, shelf-side positioning portion 25, inner side surface portion 26, outer side surface portion 27, notch portion 28, and shelf-side position restricting protrusion 29 of the shelf 21 can be arranged approximately symmetrically with respect to the line segment LS. There are no particular restrictions on this combination, as long as it allows the shelf to be attached to the shelf support 20 even when the shelf is turned left and right.

[0023] 3 to 7, shelf 21 is formed with inner side surface 26 and outer side surface 27, each extending perpendicularly from top surface 23 on which food and beverages are placed. Inner side surface 26 and outer side surface 27 are formed in a substantially rectangular ring shape along the edges of long side 22L and short side 22S, respectively. Shelf-side position regulating protrusion 29 is provided on inner side surface 26. Outer side surface 27 can extend from the edge of top surface 23. Outer side surface 27 is cut out around shelf-side position regulating protrusion 29. Inner side surface 26 is located inward of outer side surface 27, and a predetermined gap G is formed between inner side surface 26 and outer side surface 27.

[0024] The reason for forming the inner side surface portion 26 and the outer side surface portion 27 in this manner is to ensure the overall rigidity of the shelf board 21. The reason for forming the outer side surface portion 27 is to protect the shelf board side positioning portion 25 formed on the inner side surface portion 26 from external forces acting from the outside, and to improve the appearance design of the shelf board 21.

[0025] Furthermore, when the shelf board 21 is fitted into the shelf support portion 20, the outer side surface portion 27 on the short side 22S side restricts deformation of the shelf board 21, thereby also having the function of suppressing bending of the shelf board 21. This will also be described later.

[0026] Two shelf-side positioning portions 25 that protrude and extend away from the top surface portion 23 are formed on the tip surface of the inner side surface portion 26 on the short side 22S side, with a predetermined length (L1) between them (see FIG. 5). Here, L1 is the length of the short side 22S in the extending direction. The shelf-side positioning portions 25 may be provided on the tip surface of the outer side surface portion 27. These shelf-side positioning portions 25 engage with shelf-support-side positioning portions (described later) formed on sliding surfaces (described later) that constitute the shelf support portion 20, thereby positioning the shelf support portion 20 and the shelf 21. This positioned state can be said to be a state in which the shelf 21 is in a predetermined position with respect to the shelf support portion 20.

[0027] Additionally, the contour of the outer periphery of shelf-board-side positioning portion 25 is formed in an arc shape (here, a circular arc shape), and is shaped so that it can be smoothly inserted into and removed from the shelf-support-side positioning portion. Of course, as will be described later, the shelf-support-side positioning portion also has a hole shape that follows the contour of shelf-board-side positioning portion 25. This will be described later.

[0028] Furthermore, the outer side surface portion 27 on the short side 22S side of the shelf 21 has a notch 28 cut out over a predetermined length (L2) near the center of the short side 22S, forming a window shape (see FIG. 5). Here, L2 is the length in the extension direction of the short side 22S. The notch 28 is located between the two shelf-side positioning portions 25, and has a relationship of "L1≧L2", preferably "L1>L2".

[0029] Here, when the shelf board 21 is pulled out toward the front, the end surface 28A of the notch 28 comes into contact with a shelf support side position restricting protrusion 36 (see FIGS. 8 and 10) described below, thereby restricting the movement of the shelf board 28. At least in this contact state, the shelf board 21 can be removed. This will be explained with reference to FIG. 10.

[0030] The midpoints of the predetermined length (L1) and the predetermined length (L2) are at approximately the same position. It is preferable that one or both of the two end face portions 28A be located closer to the shelf-side position restricting protrusion 29 than to the shelf-side positioning portion 25. Therefore, the outer side surface portion 27 covers the shelf-side positioning portion 25 formed on the inner side surface portion 26, thereby preventing the shelf-side positioning portion 25 from being damaged by external forces.

[0031] A shelf-side position regulating protrusion 29 is formed on the inner side surface portion 26 that overlaps with the cutout portion 28. The shelf-side position regulating protrusion 29 is located near the center of the short side 22S and protrudes vertically outward from the surface of the inner side surface portion 26. In other words, it extends from the surface of the inner side surface portion 26 toward the cutout portion 28. Preferably, the shelf-side position regulating protrusion 29 is formed at the midpoint of the distance (L1) between the two shelf-side positioning portions 25.

[0032] Here, it is desirable that the protruding length of shelf-side position restricting protrusion 29 does not exceed the outer peripheral surface of outer side surface portion 27. In this case, shelf-side position restricting protrusion 29 is set to a length that does not protrude outward from upper surface portion 23 of shelf 21. As a result, shelf-side position restricting protrusion 29 is covered by upper surface portion 23 of shelf 21, and the area of ​​upper surface 23 for placing food and beverages can be secured.

[0033] In this embodiment, the shelf-side position-regulating protrusion 29 is a flat rectangular plate, and the length of the side along the short side 22S is set to a predetermined length (L3). This predetermined length (L3) is set to be the same as or shorter than the corresponding predetermined length of the shelf-support-side position-regulating protrusion, which will be described later.

[0034] Next, the configuration of the shelf support portion 20 will be described. The shelf support portion 20 is integrally formed from the synthetic resin that forms the inner box 16. However, if necessary, the shelf support portion 20 can be manufactured separately from the side wall portion 17 and integrated with the side wall 17 using bolts or a fitting mechanism. Since the pair of shelf support portions 20 have the same configuration, only one shelf support portion 20 will be described, and the description of the other shelf support portion 20 will not be repeated.

[0035] 8 and 9, the shelf support portion 20 is composed of a sliding surface forming portion 30 and a protrusion forming portion 31. The sliding surface forming portion 30 and the protrusion forming portion 31 are formed to protrude inward from the surface of the side wall portion 17. The sliding surface forming portion 30 protrudes further inward, so that a stepped plane is formed in the order of the side wall 17, the protrusion forming portion 31, and the sliding surface forming portion 30.

[0036] Furthermore, sliding surface forming portion 30 and protrusion forming portion 31 extend in the depth direction of inner box 16, and are set to a length that allows at least two shelf boards 21 to be placed side by side in the depth direction, as shown in Fig. 1. The flat surface of sliding surface forming portion 30 on which shelf board 21 is placed (the sliding surface described below) is formed in a form that keeps shelf board 21 approximately horizontal when the refrigerator is installed.

[0037] The sliding surface forming portion 30 is formed with a flat portion 32 that is approximately parallel to the side wall 17 and a flat sliding surface 33 that is approximately perpendicular to the side wall 17, and the side edge of the short side 22S of the shelf 21 is slidably placed on this sliding surface 33. In addition, shelf support side positioning portions 34, which are, for example, concave, are formed at predetermined intervals across the flat portion 32 and the sliding surface 33. The two shelf support side positioning portions 34F on the front side correspond to the front shelf 21F, and the two shelf support side positioning portions 34R on the rear side correspond to the rear shelf 21R. The shelf support side positioning portions 34 may be provided within the range of the sliding surface 33.

[0038] The two shelf support side positioning portions 34F on the front side are formed in a concave shape so as to accommodate and engage with the two shelf board side positioning portions 25 formed on the inner side surface portion 26 of the shelf board 21. Similarly, the two shelf support side positioning portions 34R on the rear side are formed in a concave shape so as to accommodate and engage with the two shelf board side positioning portions 25 formed on the inner side surface portion 26 of the shelf board 21.

[0039] Therefore, the distance (L4) between the two shelf support side positioning portions 34F, 34R shown in Figure 9 and the distance (L1) between the two shelf board side positioning portions 25 have the relationship "L1 ≒ L4." This allows the shelf board side positioning portions 25 and the shelf support side positioning portions 34F, 34R to be engaged with high precision. Here, the predetermined length (L4) is the length in the depth direction.

[0040] Here, "engaged" means that the shelf 21 is assembled into the shelf support portion 20 and set in a predetermined position, and the shelf side positioning portion 25 is housed in the shelf support side positioning portions 34F, 34R.

[0041] Furthermore, the shelf support side positioning portions 34F, 34R are formed in a shape (here, an arc-shaped recess) complementary to the shape of the shelf side positioning portion 25, and more preferably, the radius of the arc of the shelf side positioning portion 25 is set to be smaller than the radius of the arc of the shelf support side positioning portions 34F, 34R.

[0042] This improves the sliding between them, allowing for smooth insertion and removal of shelf 21. The contours of shelf support side positioning portions 34F, 34R and shelf side positioning portion 25 may be arc-shaped or may be linearly inclined, for example triangular.

[0043] Two shelf support-side position regulating protrusions 36 are formed on the flat surface 35 of the protrusion-forming portion 31, which is approximately perpendicular to the sliding surface 33, in other words, approximately parallel to the side wall 17. The shelf support-side position regulating protrusions 36 extend in a direction along the sliding surface 33, that is, so as to protrude vertically from the flat surface 35. Furthermore, the shelf support-side position regulating protrusions 36 are formed within a range from the upper surface 23 of the shelf board 21 to the sliding surface 33 of the shelf support portion 20 when the shelf board 21 is assembled in a predetermined position relative to the shelf support portion 20.

[0044] The protruding length of this shelf-support-side position-regulating protrusion 36 does not exceed the width (W) of the sliding surface 33, and is set to a length that allows it to mechanically interfere with the shelf-side position-regulating protrusion 29 when the shelf board 21 is installed. Here, "interfering" means that when the shelf board 21 is installed in a predetermined position, the upward projection surface of the shelf-side position-regulating protrusion 29 overlaps partly or entirely with the shelf-support-side position-regulating protrusion 36. When the shelf board 21 is installed in a predetermined position, the shelf-side position-regulating protrusion 29 and the shelf-support-side position-regulating protrusion 36 are spaced apart. When the shelf board 21 is tried to be moved vertically upward in this interfering state, the shelf-side position-regulating protrusion 29 comes into contact with the shelf-support-side position-regulating protrusion 36, preventing the shelf board 21 from bouncing up.

[0045] Furthermore, flat surfaces 37 are formed perpendicular to the side walls 17. The amount of protrusion of the flat surfaces 37 increases from the rear side to the front side. The two opposing side walls 17 may be formed tapered, with the separation distance increasing from the rear side to the front side, due to molding considerations. Therefore, by providing flat surfaces 37 corresponding to the shape of the side walls 17, the separation dimension between the two opposing flat surfaces 35 can be made substantially constant from the rear side to the front side. This allows the gap dimension between the flat surfaces 35 to be substantially constant regardless of whether the shelf 21 is placed on the rear side or the front side, reducing the sense of discomfort felt by the user when the positions of the two shelves 21 are swapped.

[0046] The dimensions of the flat surface portion 37 are determined so that it is flush with the upper surface portion 23 of the shelf board 21 when the shelf board 21 is installed in a predetermined position. Therefore, the flat surface portion 37 can also be used in cooperation with the upper surface portion 23 of the shelf board 21 as a surface on which food and beverages can be placed.

[0047] Here, when shelf board 21 is assembled, flat surface portion 35 of protrusion forming portion 31 is in close proximity to, or in light contact with, outer side surface portion 27 on the short side 22S side of shelf board 21 so as to be slidable. When food or beverages are placed on shelf board 21, shelf board 21 may bend around the center in the longitudinal direction, but outer side surface portion 27 on the short side 22S side is restrained by flat surface portion 35, so that shelf board 21 can be strengthened against bending.

[0048] 9, shelf support side position regulating protrusions 36F, 36R are each positioned within the range of the interval (L4) between shelf support side positioning portions 34F, 34R, preferably near the center of the interval (L4), and more preferably at a position corresponding to the midpoint. The length (L5) of shelf support side position regulating protrusion 36 in the depth direction (direction of short side 22S) is set to be equal to or greater than the length (L3) of shelf board side position regulating protrusion 29 in the depth direction (direction of short side 22S) (L5≧L3).

[0049] In other words, when the shelf 21 is assembled in the specified position, the dimensional relationship is such that the shelf side position regulating protrusion 29 is included in the area of ​​the projection surface of the shelf support side position regulating protrusion 36 in the direction from the shelf support side position regulating protrusion 36 toward the sliding surface 33.

[0050] 9, the length (H) between the sliding surface 33 and the surface of the shelf support-side position regulating protrusion 36 on the sliding surface 33 side is set to a length that allows the shelf-side position regulating protrusion 29 to be present when the shelf 21 is installed. In other words, this means that the shelf-side position regulating protrusion 29 is located between the sliding surface 33 and the shelf support-side position regulating protrusion 36 when the shelf 21 is installed in the specified position.

[0051] Furthermore, when the shelf board 21 is pulled out toward the front and the shelf board-side positioning portion 25 moves along the arc-shaped portion of the shelf support-side positioning portion 34F, the shelf board-side position regulating protrusion 29 formed on the short side 22S of the shelf board 21 and the shelf support-side position regulating protrusion 36 can be dimensionally arranged to interfere with each other. During this period, it is preferable that the plate-side position regulating protrusion 29 and the shelf support-side position regulating protrusion 36 are spaced apart.

[0052] Furthermore, when the shelf 21 is pulled out toward the front and the shelf side positioning portion 25 comes out of the shelf support side positioning portion 34F, the shelf side position regulating protrusion 29 formed on the short side 22S of the shelf 21 is dimensionally related so as not to exceed the position of the shelf support side position regulating protrusion 36 and interfere.

[0053] This point will be explained below with reference to the drawings. Figure 10 shows the change in the positional relationship between shelf board 21 and shelf support portion 20 when the front shelf board 21 (left side in the figure) is pulled out from a state in which shelf board 21 is incorporated into shelf support portion 20. Note that in Figure 10, the hidden shelf-side positioning portion 25 is not shown in order to show the change in the positional relationship between shelf-side position restricting protrusion 29 and shelf-support-side position restricting protrusion 36.

[0054] 10(A) shows the state in which the shelf board 21 is incorporated into the shelf support portion 20 and placed in a predetermined position. In other words, it shows the initial state in which the shelf board side positioning portion 25 is engaged with the shelf support side positioning portion 34. Here, a case in which the front side (left side in the figure) shelf board 21F is pulled out will be described.

[0055] 10(A), in the initial state, a distance (D) is formed between the shelf-side position regulating protrusion 29 and the shelf-support-side position regulating protrusion 36. In this state, the dimensional relationship is determined so that the shelf-side position regulating protrusion 29 is located in the area of ​​the projection plane (P) of the shelf-support-side position regulating protrusion 36 in the direction from the shelf-support-side position regulating protrusion 36 toward the sliding surface 33.

[0056] 10(A), with shelf 21 assembled in a predetermined position relative to shelf support 20, the length between shelf support-side position regulating protrusion 36 and side end 28A of notch 28 is set longer than the length of shelf-side position regulating protrusion 29 when viewed from the same direction. In this state, when shelf 21F is pulled out toward the front (left side in the figure), shelf-side positioning portion 25 moves along the shape of shelf support-side positioning portion 34F.

[0057] 10(B), when shelf board 21F is pulled out toward the front from the initial state in which shelf board 21F is assembled in a predetermined position, shelf board-side positioning portion 25 moves along the shape of shelf support-side positioning portion 34F until shelf board-side positioning portion 25 moves out of shelf support-side positioning portion 34F. At this time, because shelf support-side positioning portion 34F is formed in an arc shape, the movement of shelf board 21F follows the change in height of shelf support-side positioning portion 34F in the arc shape.

[0058] For this reason, the shelf-board-side position regulating protrusion 29 gradually approaches the shelf-support-side position regulating protrusion 36 from its initial position, and the distance narrows from D. Of course, during this process, the shelf-board-side position regulating protrusion 29 moves away from the projection plane (P) of the shelf-support-side position regulating protrusion 36, and the overlap width with the shelf-support-side position regulating protrusion 36 becomes smaller (shorter).

[0059] 10(C), just before shelf-side positioning portion 25 comes out of shelf-support-side positioning portion 34F, shelf-side position restricting protrusion 29 and shelf-support-side position restricting protrusion 36 are just about to come into contact, and furthermore, shelf-side position restricting protrusion 29 is just about to leave the projection plane (P) of shelf-support-side position restricting protrusion 36. From the initial state in FIG. 10(A) to just before coming out in FIG. 10(C), the distance that shelf 21F moves upward along the shape of shelf-support-side positioning portion 34F, i.e., the distance that shelf-side position restricting protrusion 29 moves upward, is equal to or less than D, and preferably less than D.

[0060] In addition, in the state shown in Figure 10(C), the end surface 28A of the notch 28 formed in the outer side surface 27 on the short side 22S side of the shelf board 21 is spaced apart from the side surface of the shelf support side position regulating protrusion 36F. The respective dimensional relationships are determined so that these operations can be established, and for example, when the shelf board 21 is formed symmetrically from front to back, it is ((L2-L3) / 2>L5), etc.

[0061] When the shelf-board-side positioning portion 25 comes out of the shelf-support-side positioning portion 34F, the shelf-board-side positioning portion 25 moves toward the sliding surface 33, and the shelf-board-side position restricting protrusion 29 and the shelf-support-side position restricting protrusion 36 no longer interfere with each other, making it possible to remove the shelf 21 from this position. When the shelf-board-side position restricting protrusion 29 and the shelf-support-side position restricting protrusion 36 just no longer interfere with each other, or when the shelf 21F is pulled out slightly further forward than this state, the end surface 28A can be configured to come into contact with the side surface of the shelf-support-side position restricting protrusion 36F. This restricts further pulling-out of the shelf 21.

[0062] In other words, the section in which the plate side position regulating protrusion 29 and the shelf support side position regulating protrusion 36 interfere with each other is the section up to the point where the shelf side positioning portion 25 comes out of the shelf support side positioning portion 34F, and the amount of movement of the shelf 21 can be reduced compared to Patent Document 1.

[0063] In this way, in this embodiment, it is possible to achieve the effect that the shelf board 21 can be easily removed without moving the shelf board 21 by a large amount while suppressing the shelf board from jumping up.

[0064] Next, we will briefly explain examples of the arrangement of the shelf boards 21. In this embodiment, the shelf boards 21 have the same shape, and are configured so that two shelf boards 21 can be arranged side by side toward the depth direction of the inner box 16, or only one shelf board 21 can be arranged, or no shelf board 21 can be arranged.

[0065] 11 shows a configuration in which two shelves 21F, 21R are arranged side by side. With this configuration, the entire depth of inner box 16 can be used as a placement surface, which has the effect of allowing many small foods and beverages to be stored.

[0066] 12 shows a configuration in which only one shelf 21R is arranged. With this configuration, the front shelf 21F of the inner box 16 is removed, which provides the effect of being able to store tall foods and beverages.

[0067] 13 shows a configuration in which only one shelf board 21R is arranged, and the front shelf board 21F is stacked on top of the back shelf board 21R. With this configuration, the front shelf board 21F can be stacked, which has the effect of allowing the front shelf board 21F to be stored and improving usability.

[0068] In the embodiment described above, the shelf support portions 20 are configured to protrude inward from the side wall 17 of the inner box 16. However, they may also be configured to recede outward from the side wall 17 of the inner box 16.

[0069] When such a configuration is adopted, the sliding surface forming portion 30 and the protrusion forming portion 31 that constitute the shelf support portion 20 are formed in a concave shape recessed from the side wall 17. In this case, it is sufficient to configure the flat portion 32 of the sliding surface forming portion 30 to be on the same plane (flush) as the side wall 17. Of course, it is necessary to form a concave recess so that the shelf board 21 can be placed on the sliding surface 33. By adopting such a configuration, the placement surface of the shelf board 21 can be expanded, thereby improving storage efficiency.

[0070] The present invention is not limited to the above-described embodiments, but includes various modifications. The above-described embodiments have been described in detail to clearly explain the present invention, and are not necessarily limited to those including all of the described configurations. Furthermore, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to add, delete, or replace other configurations with respect to the configuration of each embodiment. [Explanation of symbols]

[0071] 10...refrigerator, 16...inner box, 17...side wall, 20...shelf support portion, 21, 21F, 21R...shelf, 22L...long side, 22S...short side, 23...top surface, 25...shelf side positioning portion, 26...inner side portion, 27...outer side portion, 28...cutout portion, 29...shelf side positioning protrusion, 30...sliding surface forming portion, 31...protrusion forming portion, 32...flat portion, 33...sliding surface, 34, 34F, 34R...shelf support side positioning portion, 35...flat portion, 36, 36F, 36R...shelf support side positioning protrusion.

Claims

1. The storage device comprises an inner box forming a storage chamber, an opening / closing door for opening and closing the inner box, a pair of shelf support portions provided on side walls of the inner box facing each other, and a shelf board arranged to span the pair of shelf support portions, The shelf support portion is a sliding surface formed to extend along the depth direction of the inner box, on which a side end of the shelf board is placed and on which the shelf board slides; a shelf support side positioning portion formed on the sliding surface for determining a predetermined position of the shelf board in the depth direction; a shelf support side position regulating protrusion formed at a position spaced a predetermined length from the sliding surface on the shelf support side positioning portion side, The shelf board is a shelf-side positioning portion formed on the side end of the shelf plate opposite to the top surface portion on which food or beverages are placed, so as to correspond to the shelf support-side positioning portion; a shelf-side position restricting protrusion formed on the side of the side end of the shelf, positioned between the sliding surface and the shelf-support-side position restricting protrusion when the shelf is assembled at the predetermined position relative to the shelf support portion, and positioned within the area of ​​the projection plane of the shelf-support-side position restricting protrusion in the direction from the shelf-support-side position restricting protrusion toward the sliding surface; A refrigerator characterized by:

2. The refrigerator according to claim 1, At least two of the shelf-board-side positioning portions and the shelf-support-side positioning portions are formed, and when the shelf is incorporated into the shelf support portion at the predetermined position, the two shelf-board-side positioning portions are engaged with the two shelf-support-side positioning portions, and The length of the shelf support side position regulating protrusion in the same direction is shorter than the length of the interval between the two shelf board side positioning portions. A refrigerator characterized by this.

3. The refrigerator according to claim 1, The shelf-side position-regulating protrusion is disposed near the center of the side edge of the shelf. A refrigerator characterized by:

4. The refrigerator according to claim 1, The shelf support side position regulating protrusion is formed in a range from the upper surface of the shelf plate to the sliding surface of the shelf support portion when the shelf plate is assembled at the predetermined position relative to the shelf support portion. A refrigerator characterized by:

5. The refrigerator according to claim 1, The shelf-side position-regulating protrusion is set within a downward projection plane of the upper surface of the shelf. A refrigerator characterized by:

6. The refrigerator according to claim 5, The side end of the shelf board is formed with an inner side surface portion and an outer side surface portion extending in a vertical direction opposite to the top surface portion, a notch portion is formed in the outer side surface portion, and the shelf board side position regulating protrusion is formed within the range of the notch portion in the inner side surface portion, When the shelf board is fitted at the predetermined position relative to the shelf support portion, the length between the shelf support side position restricting protrusion and the side end of the notch portion is longer than the length of the shelf board side position restricting protrusion when viewed in the same direction. A refrigerator characterized by:

7. The refrigerator according to claim 5 or claim 6, The shelf support side position regulating protrusion is formed on a protrusion forming portion having a flat portion extending vertically from the side wall of the inner box, The dimensions of the flat surface portion are set so as to be flush with the upper surface portion of the shelf plate when the shelf plate is installed at the predetermined position relative to the shelf support portion. A refrigerator characterized by:

8. The refrigerator according to any one of claims 1 to 6, The overlapping width between the shelf-board-side position regulating protrusion and the shelf-support-side position regulating protrusion is shorter when the shelf is being pulled out from the predetermined position than when the shelf is assembled at the predetermined position relative to the shelf support. A refrigerator characterized by:

9. The refrigerator according to claim 1, The shelf support has two or more shelf support portions, Two or more of the shelf boards are arranged side by side in the depth direction in the two or more shelf support portions, The shelf board arranged in a certain shelf support portion is The position of the shelf board can be exchanged with another shelf board arranged in the shelf support portion, The position of the shelf board can be exchanged with that of another shelf board arranged in another shelf support portion. A refrigerator characterized by:

10. The refrigerator according to claim 1, The shelf support portion has a sliding surface forming portion and a protrusion forming portion that protrude inward from the side wall, The protrusion forming portion has a flat surface that is substantially parallel to the side wall, and the shelf support side position regulating protrusion that extends perpendicularly to the flat surface is formed on the flat surface, The sliding surface forming portion is formed with the sliding surface extending in a direction perpendicular to the flat surface portion, The shelf board is formed with an inner side surface portion and an outer side surface portion extending in a vertical direction opposite to the top surface portion of the shelf board, a notch portion is formed in the outer side surface portion located at the side end of the shelf board, and the shelf board side position regulating protrusion is formed within the range of the notch portion on the inner side surface portion, When the shelf board is assembled at the predetermined position relative to the shelf support portion, the entire shelf board side position restricting protrusion overlaps the area of ​​the projection surface of the shelf support position restricting protrusion, In the process of the shelf board being pulled out from the predetermined position relative to the shelf support portion, the shelf board side position restricting protrusion is removed from the area of ​​the projection surface of the shelf support position restricting protrusion, thereby shortening the overlapping width. A refrigerator characterized by:

Images