JP5402590B2 - Refrigerator shelf device and refrigerator equipped with the shelf device - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly to a shelf device thereof.

  As a result of an increase in height or depth accompanying an increase in the size and capacity of the refrigerator, it was difficult to take out the stored items placed in the upper depth of the refrigerator. Therefore, there is a shelf device in the refrigerator that is movable so that stored items stored in the back can be moved forward to make it easier to take out (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-153382 (FIGS. 4 and 5)

  However, in the conventional refrigerator shelf device, it is possible to easily take out stored items such as foods arranged in the deep space of the upper shelf, but the design conditions for realizing smooth rotation are severe, and therefore There was a problem that unnecessary space was required. An example of a conventional shelf device is shown in FIGS. 4 and 5 of Patent Document 1. FIG. The rotating shaft groove (second groove) 211 and the central shaft groove (first groove) 212 shown in the drawing are rotated according to the positional relationship, length, or radius of the rotating shaft groove (second groove) 211, etc. When the shelf 220 rotates, it protrudes from the rear end of the auxiliary shelf 210 to the back side, that is, before it interferes with the back wall in the refrigerator or suppresses the protrusion of the rotating shelf 220 to the back side. There is a problem that the shaft (first vertical axis) 222 is disengaged from the auxiliary shelf 210 at the front end of the auxiliary shelf 210 and the central axis (first vertical axis) 222 is detached from the auxiliary shelf 210.

  In order to solve these problems, it is necessary to make the depth width of the rotary shelf 220 and the auxiliary shelf 210 larger than the width in the refrigerator. On the other hand, increasing the depth width of the rotating shelf 220 and the auxiliary shelf 210 is equivalent to increasing the invalid space in the refrigerator.

  Further, in the conventional refrigerator shelf device, the center axis (first vertical axis) 222 is moved in front of the auxiliary shelf 210 in the process of rotating the rotating shelf 220. The storage portion is loaded at a position obtained by adding the moving amount of the central axis (first vertical axis) 222 to the rotation radius of the rotating shelf 220, and a large moment load is applied.

  In addition, since the auxiliary shelf 210 is provided with the rotation shaft groove (second groove) 211 and the center shaft groove (first groove) 212 having a long hole structure, sufficient rigidity cannot be obtained.

  In addition, the rotation shelf 220 has a limitation in the rotation direction, and in addition, the rotation shelf 220 cannot be rotated by 180 degrees or more. Therefore, the user needs to consider the rotation direction. If the rotation direction is wrong, there is a problem that the center axis (first vertical axis) 222 and the end of the rotation axis groove (second groove) 211 collide with each other, leading to damage to the auxiliary shelf 210.

  The present invention has been made to solve such a problem, and suppresses the moment load applied when the rotating shelf is located at a substantially right angle with respect to the horizontal direction in the cabinet, and the rotating shelf is 360 in both the left and right directions. It is possible to provide a refrigerator shelf device in which stored items can be easily taken out by allowing the shelf support base to be moved back and forth without requiring the user to consider the direction of rotation. .

The refrigerator shelf device according to the present invention includes a shelf support rail provided on both sides of the inner box of the refrigerator compartment, a shelf support base having a flat and substantially rectangular top surface that is slidably supported by the shelf support rail, and a shelf A rotating shelf having a substantially rectangular shape provided with a notch at four corners, which is rotatably provided on the supporting base and has a connecting portion connected to the shelf supporting base, and the connecting portion includes the shelf supporting base and the rotating shelf. central portion provided one position in the rotation shelf, which is constituted such that rotational movement about the connecting portion in response to sliding movement of the shelf support base.

According to the refrigerator shelf apparatus according to the present invention, the shelf area occupied by the rotating shelf in the shelf area occupied by the shelf support stand in the interior space with a small depth is given to the substantially rectangular rotating shelf. The dead space generated between the two can be reduced, and the shelf area can be used efficiently .

It is a block diagram of the shelf apparatus of the refrigerator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the other connection part of the shelf apparatus of the refrigerator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the other connection part of the shelf apparatus of the refrigerator which concerns on Embodiment 1 of this invention. It is a block diagram which shows the other connection part of the shelf apparatus of the refrigerator which concerns on Embodiment 1 of this invention. It is a block diagram of the shelf apparatus of the refrigerator which concerns on Embodiment 1 of this invention. It is a figure which shows the structure which mounts a shelf support stand on a shelf receiving rail. It is a figure which shows the structure which mounts a shelf support stand on a shelf receiving rail. It is a structural drawing of the rib of the shelf apparatus of the refrigerator which concerns on Embodiment 1 of this invention. It is a figure which shows each state which pulled out the shelf support stand. It is a block diagram of the refrigerator shelf apparatus which concerns on Embodiment 3 of this invention. It is a figure which shows the state at the time of pulling out a shelf support stand, and the rotation direction of each gear. It is a structural view showing a configuration in which resin rings having a low friction coefficient are combined. It is a structural diagram showing a configuration incorporating a thrust bearing. It is a structural diagram which shows the structure which used the magnet for the connection part.

Embodiment 1 FIG.
Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

  1 is a configuration diagram of a refrigerator shelf device according to Embodiment 1 of the present invention. In the figure, the shelf support base 1 having a flat upper surface and a substantially rectangular shape has a through-hole 6a through which a rivet 5 as a connecting portion passes through a central portion (a portion corresponding to the center of each of the lateral width and depth width; hereinafter referred to as a central portion). The both ends are inserted into the guide portions 3 of the shelf receiving rails 2 provided on both sides of the inner box of the refrigerator compartment, and are slidably supported. The rotary shelf 4 is substantially the same depth as the shelf support base 1 and has a width obtained by subtracting the length of the portion inserted into the guide portion 3 of the shelf support rail 2 from the shelf support base 1. A through hole 6b through which the rivet 5 is passed is provided, and is rotatably fixed to the shelf support base 1 by the rivet 5 which is a connecting portion at approximately the center of the shelf support base 1. Both lateral ends of the rotating shelf 4 have notches in an arc shape with the connecting portion as the center (rotating fulcrum) and the horizontal width of the rotating shelf 4 as a diameter.

  Here, on the upper surface of the shelf support base 1 and the lower surface of the rotating shelf 4, an annular shelf supporting base groove portion 7a and a rotating shelf groove portion 7b having substantially the same size are provided at opposite positions with the connecting portion as the center. In order to reduce frictional resistance when the rotating shelf 4 rotates, a material having good slipperiness (for example, high molecular weight polyethylene (POM), polystyrene (PS), polypropylene (PP), polyphenylene sulfide (PPS), acrylonitrile, A resin material such as butadiene / styrene (ABS), acrylonitrile / styrene (AS), or a fluororesin having a low friction coefficient), and the inner diameter is slightly larger than the annular shelf support groove portion 7a and the rotating shelf groove portion 7b. The outer diameter is slightly smaller and slightly larger than the combined depth of the annular shelf support groove portion 7a and the rotating shelf groove portion 7b. Disk-shaped turntable 8 having a thickness is fitted sliding in a form sandwiched between an annular shelf support base groove 7a and carousel groove 7b,.

  Here, the turntable 8 is configured as a separate part from the shelf support base 1 and the rotary shelf 4, but as shown in FIG. 2, an annular shelf support provided on the top surface of the shelf support base 1. A disk having an inner diameter slightly larger than the annular shelf support base groove 7a, a slightly smaller outer diameter, and a thickness slightly larger than the depth of the annular shelf support base groove 7a at a position corresponding to the base groove 7a. The same effect can be obtained even if the protruding portion 9a is provided on the lower surface of the rotating shelf 4 and is configured to be slip-fitted. Also, as shown in FIG. 3, the inner diameter is slightly larger than the annular groove rotating shelf groove 7b at the position corresponding to the annular groove rotating shelf groove 7b provided on the lower surface of the rotating shelf 4, and the outer diameter is A disc-shaped protrusion 9b having a thickness that is slightly smaller and slightly larger than the depth of the annular groove rotating shelf groove 7b may be provided on the upper surface of the shelf support 1 so as to be slip-fitted. By providing such a sliding fitting mechanism, a rotational force can be obtained only by applying a weak force, and a stable rotation can be obtained.

  In the above configuration, the rivet 5 is used as the connecting portion. However, as shown in FIG. 4, the connecting portion may include a bolt connecting portion including a bolt 10a, a washer 10b, and a nut 10c. In addition, any configuration may be adopted as long as the shelf support base 1 and the rotating shelf 4 can be rotatably fixed. For example, the shelf support base 1 and the rotation shelf 4 may be configured by a hinge pin and a split pin or a retaining ring. Moreover, as shown in FIG. 5, the fitting protrusion 11 for slidingly fitting to the rotating shelf 4 may be formed by integral molding, and inserted into the through hole 6a of the shelf support base 1 to be slidingly fitted. Or conversely, the fitting protrusion 11 for slidingly fitting to the shelf support base 1 may be formed by integral molding and inserted into the through hole 6b of the rotating shelf 4 to be fitted slidingly.

  In the above configuration, the guide portion 3 has a structure in which a groove is carved in the shelf receiving rail 2, but as shown in FIG. 6 or 7, the stopper 12 is provided at the front and rear end portions of the shelf receiving rail 2, You may make it the structure which mounts the shelf support stand 1 on the shelf receiving rail 2. As shown in FIG. Further, the shelf receiving rail 2 may be embedded in the inner wall of the refrigerator.

  In the above configuration, the configuration in which the disk-shaped rotating disk 8 is provided to reduce the frictional resistance when the rotating shelf 4 rotates has been described. However, as shown in FIG. The concentric ribs 13 may be provided. The number of ribs 13 is not particularly limited, and may be two, three, four, or more. The ribs 13 may be provided on the shelf support base 1 or on both the rotating shelf 4 and the shelf support base 1.

  FIG. 9 is a diagram showing each state in which the shelf support base is pulled out. In the figure, (a), (b), and (c) show a state in which (a) shows the shelf support base 1 arranged at the innermost position of the shelf support rail 2, and (c) shows the shelf support base 1 in the shelf. The state arrange | positioned 1st front of the receiving rail 2 is shown, (b) shows the state by which the shelf support stand 1 is arrange | positioned in the middle of (a) and (c), respectively. In the state of (a), since the shelf support base 1 is located at the back of the refrigerator, there is no room in the back direction, and the rotating shelf 4 has a rotation angle with respect to the shelf support base 1 (with respect to the longitudinal direction of the shelf support base). It refers to the angle in the longitudinal direction of the rotating shelf 4. The same shall apply hereinafter. This state is usually a state where the door of the refrigerator is closed and a case where there is no need to take out stored items placed in the back of the rotating shelf 4. In addition, the figure has shown the state where the circular shelf support base groove part 7a and the rotation shelf groove part 7b overlapped as the groove part 7. FIG.

  In the state of (c), since the shelf support stand 1 is in front of the refrigerator, the rotation shelf 4 can maximize the rotation angle with respect to the shelf support stand 1. This state is a state in the case where it is necessary to take out the stored item placed in the back of the rotating shelf 4. Further, the state of (b) is an intermediate state between (a) and (c), and when it is easy to take out what is in front of the rotating shelf 4, the rotating shelf 4 is slightly rotated and placed slightly in the back. The case where it is easy to take out what has been assumed is assumed. It goes without saying that these conditions may be used under any circumstances. Moreover, although the said description has described about the case where a stored item is taken out, it is the same also when storing a stored item. In this case, for example, when storing a stored item having a height that just fits between the rotating shelf 4 and the shelf arranged above, it can be easily stored.

  In particular, it is effective when the arrangement of the stored items stored in the back of the rotating shelf 4 of the refrigerator shelf device according to Embodiment 1 of the present invention and the stored items stored in front of the rotating shelf 4 is switched. To do. For example, when replacing previously purchased foods with newly purchased foods, etc., the newly purchased foods are stored in front of the rotating shelf 4 and the rotating shelf 4 is rotated 180 degrees. By doing so, it can be easily replaced with food stored in the back of the rotating shelf 4.

Embodiment 2. FIG.
In the first embodiment, the depth and width of the rotating shelf are not particularly defined, but more effective area utilization can be achieved by providing design conditions for the depth and width. Table 1 below shows the ratio of the area of the circle inscribed in the rotating shelf 4 to the area when no notches are provided in the four corners of the rotating shelf with respect to the depth D and the width W of the rotating shelf. Circular area), effective use rate s2 when the notch is not provided at all in the corner of the rotating shelf with a circle having a width W on the rotating shelf, and the minimum required for the rotating shelf to rotate The sum of the forward / backward movement amount to be moved and the shelf depth D is defined as the minimum cabinet depth D ′, and the product of the minimum cabinet depth D ′ and the width W is defined as the minimum cabinet interior area for configuring the rotating shelf. It is the table | surface which showed the relationship with the ratio of the substantially square area with respect to an area with the largest occupation rate s3 of a rotation shelf in the space in a warehouse.

  As is clear from the table, the notch area can be reduced as the lateral width W increases with respect to the depth D of the shelf, but the maximum occupation ratio s3 of the rotating shelf is in a relationship of decreasing. From the viewpoint of effective use of the internal space, if the effective utilization rate s2 is too small, the dead space on the rotating shelf becomes large. Therefore, it is preferable to secure at least about 85%. Further, if the depth is reduced with respect to the horizontal width of the rotating shelf, the maximum occupation ratio s3 of the rotating shelf in the internal space decreases, and the dead space with respect to the internal space increases. Therefore, it is preferable to secure at least about 50%.

  Therefore, it is preferable that the ratio between the depth D of the rotating shelf and the width W is 1.14 to 2.92. More preferably, it is needless to say that the effective utilization rate s2 is secured to 90% or more and the maximum occupation rate s3 is secured to about 1.36 to 2.20. Considering the balance between the effective utilization rate s2 and the maximum occupation rate s3, it can be said that it is most preferable to be around 1.87, that is, 1.60 to 2.20.

Embodiment 3 FIG.
In the first embodiment, the structure in which the shelf support base and the rotating shelf are operated independently has been described. However, by adopting a structure in which the shelf support base and the rotating shelf are interlocked, two operations (forward and backward movement operation and rotation) are performed. (Moving movement) can be done with one movement. FIG. 10 is a configuration diagram of a refrigerator shelf device according to Embodiment 3 of the present invention. The portions denoted by the same reference numerals as those in the first embodiment have the same configuration, and thus description thereof is omitted. Here, different configurations will be described in detail.

  In the figure, a first gear 14 and a second gear 15 whose centers are rotatably fixed with screws or the like are provided on the upper surface of the shelf support base 1 so that their teeth mesh with each other. The teeth of the first gear 14 are engaged with the teeth of the tooth portions 18 provided on the toothed shelf receiving rails 16 provided on both sides of the inner box of the refrigerator compartment, and both ends of the shelf support base 1 are inserted into the guide portion 3. It is slidably supported. Here, on the upper surface of the shelf support base 1 corresponding to the portion where the first gear 14 and the second gear 15 are provided, a disk-shaped groove of a size that can accommodate the first gear 14 and the second gear 15 is provided. It doesn't matter. A third gear 17 is fixed to the rotating shelf 4 with a diameter that engages with the second gear 15 with the center portion at the center. Here, the third gear 17 may be formed integrally with the rotating shelf 4. In addition, the structure of a connection part, the structure of the horizontal both ends of a rotation shelf, etc. are the same structures as the structure shown in the said embodiment.

  Next, the operation will be described. FIG. 11 is a diagram illustrating a state when the shelf support base is pulled out and the rotation direction of each gear. In the figure, when the shelf support 1 is pulled out, that is, when it moves in the direction of the arrow 19, the first gear 14 rotates clockwise, that is, in the direction of the arrow 20. The second gear 15 fixed to the upper surface of the shelf support 1 in a state where the teeth of the first gear 14 are engaged with each other is rotated counterclockwise, that is, in the direction of the arrow 21. Since the third gear 17 fixed to the lower surface of the rotating shelf 4 in a state where the teeth of the second gear 15 are engaged with each other rotates clockwise, the main body of the rotating shelf 4 rotates in the direction of the arrow 22.

  Here, in the figure, the first gear 14 and the third gear 17 have substantially the same diameter, but by making them different diameters, the rotational speed changes, so that it rotates at high speed or only by applying a small force. You can also do it. The same applies to the second gear 15. In this example, two rotatable gears are used on the upper surface of the shelf support base 1 and one fixed gear is used on the lower surface of the rotating shelf 4, but one rotatable gear and one fixed gear are used. It is good also as the structure used individually. Further, it may be configured with only one fixed gear, or may be configured with three rotatable gears and one fixed gear, and there is a restriction of one fixed gear. There is no particular limit to the number.

  In addition, here, the structure in which the shelf support base and the rotating shelf are interlocked using gears is described. However, the structure is not limited to the gear, and for example, the shelf support base and the rotating shelf may be configured using a belt or a caterpillar. It is self-evident that a structure that works with can be obtained.

  In the above embodiment, in order to reduce the contact area between the rotating plate and the shelf support base, a concentric rib centered on the rotation fulcrum is used, but a linear rib may be used. It doesn't matter. Here, it is possible to further prevent welding due to heat generated by friction by configuring the rotating plate and the shelf support base with different kinds of resin materials. Further, the same effect can be obtained even when the resin ring 23a and the resin ring 23b having a low coefficient of friction are combined as shown in FIG. 12, or the thrust bearing 24 is incorporated as shown in FIG. It is done. Here, it goes without saying that the contact area can be reduced by using not only the thrust bearing 24 but also other bearings.

  In the above embodiment, the rotating plate and the shelf support base are directly connected to each other by using a rivet or the like. However, as shown in FIG. 14, the magnets 25a and 25b are provided on both sides. Thus, indirect connection by magnetic force is obtained, and smoother rotation is obtained. Further, a magnet may be used on one side and iron may be used on the other side.

  DESCRIPTION OF SYMBOLS 1 shelf support stand, 2 shelf support rail, 3 guide part, 4 rotation shelf, 5 rivet, 6 through hole, 7 groove part, 8 turntable, 9 protrusion part, 10 bolt connection part, 11 fitting protrusion, 12 stopper, 13 Rib, 14 1st gear, 15 2nd gear, 16 Toothed shelf support rail, 17 3rd gear, 18 Tooth part, 19 Arrow, 20 Arrow, 21 Arrow, 22 Arrow, 23a Resin ring, 23b Resin ring, 24 Thrust Bearing, 25a magnet, 25b magnet

Claims (6)

Shelf support rails provided on both sides of the inner box of the refrigerator compartment;
An upper surface of the shelf support rail that is slidably supported by the shelf support rail, and a substantially rectangular shelf support;
A rotating shelf that is rotatably provided on the shelf support base and has a rectangular shape with a cutout at four corners having a connecting portion connected to the shelf support base;
The connecting portion is provided one place central portion in the shelf support table and the carousel, the carousel is able to rotate in the center of the connecting portion in response to sliding movement of the shelf support table Refrigerator shelf device. The cutting of the four corners of the carousel-outs, and about the connecting portion, a refrigerator shelf according to claim 1, wherein a is obtained notched along an arc shape with the diameter the width of the carousel apparatus. The shelf support base is provided with a protruding groove below the annular shape centering on the connecting portion, and the rotating shelf is provided with a protruding protrusion below the annular shape centering on the connecting portion, and is fitted with the groove portion. refrigerator shelving system of any crab according to claim 1 or claim 2, characterized by being configured to focus. The shelf support base is provided with a protruding protrusion on an annular shape centering on the connecting portion, and the rotating shelf is provided with a protruding recess on an annular shape centering on the connecting portion, and the protruding portion refrigerator shelving system of any crab according to claim 1 or claim 2, characterized by being configured to fit. The shelf support base is provided with a projecting groove portion below the annular shape centering on the connecting portion, the rotary shelf is provided with a projecting recess portion on the annular shape centering on the connecting portion, and the groove portion and the recess portion are provided. The refrigerator shelf device according to claim 1, wherein an annular turntable is provided so as to be fitted to the refrigerator. A refrigerator comprising the refrigerator shelf device according to any one of claims 1 to 5.

Images