JP5554044B2 - Refrigerator shelf - Google Patents

Description

  The present invention relates to a refrigerator shelf formed of a synthetic resin material.

  As an internal shelf of a conventional refrigerator formed from a synthetic resin material by injection molding, the internal shelf body made of synthetic resin is inserted facing the front of the internal shelf body, and serves as a shelf front decoration. And a reinforcing member made of aluminum or an aluminum alloy, the inner shelf body having a vertical positioning groove, the reinforcing member having a hollow portion and a rib inserted into the groove of the inner shelf body, In some cases, the reinforcing member is provided with a stepped portion for concealing the gap formed when the rib of the reinforcing member is inserted into the groove (see, for example, Patent Document 1).

Japanese Patent No. 2984490 (first page, FIGS. 1 and 2)

  In the case of using a metal reinforcing member in a conventional refrigerator shelf as described above, since a metal reinforcing member and assembly work are required, its material cost, manufacturing cost, assembly processing cost, etc. As a result, the manufacturing cost is increased, and there is a problem that a manufacturing failure occurs when the inside shelf body made of synthetic resin is damaged during assembly. In addition, there is a problem that fine garbage and soup easily enter the gap between the shelf in the cabinet and the reinforcing member, and an extra cleaning operation is required. Further, when reinforcing ribs are installed on the shelf in the cabinet, the conventional method has a problem that the amount of synthetic resin used in the cabinet on the shelf increases and the manufacturing cost increases.

  The present invention has been made to solve the above-described problems of the prior art, and can ensure the necessary strength without installing a metal reinforcing member. The purpose of the present invention is to obtain a refrigerator shelf that can be provided at a low cost with a smaller amount of synthetic resin.

The refrigerator shelf according to the present invention is made of a synthetic resin material, and is provided with an article placement section on which an article such as food is placed, and an angle that is provided around the article placement section and is perpendicular to the article placement section. a side wall in which is formed, on an outer peripheral portion of the bottom surface of the article placing section, be those reinforcing portion that protrudes downward than the bottom surface is formed integrally, located on the front side of the refrigerator A front flange integrally formed so as to extend forward from the top of the side wall, and the reinforcing portion is substantially the same thickness as the side wall and is lower than the bottom surface of the article mounting portion from the side wall. A top surface reinforcing rib formed integrally with a bottom surface surrounding reinforcing rib formed so as to extend in the direction and extending the top of the side wall upward from the front flange. Provided on the side wall provided around the part It is characterized in that the corners as the body is formed in a rounded rectangular shape.

In this invention, the bending moment and the torsional moment generated in the outer peripheral portion of the article placing portion due to the weight load of food or the like are integrally formed on the side wall and the bottom outer peripheral portion integrally formed around the article placing portion A front flange integrally formed so as to extend from the top of the side wall located on the front side of the refrigerator to the front side, and the reinforcing portion has substantially the same thickness as the side wall. A top surface reinforcing rib formed integrally with a bottom surface surrounding reinforcing rib formed to extend downward from the bottom surface of the article placement portion from the side wall, and extending the top portion of the side wall upward from the front flange. And the upper surface reinforcing rib is provided on a side wall provided around the article mounting portion and is formed in a rectangular shape with rounded corners as a whole. Generated bending moment and torsional rigidity can be reliably enhanced for the moment, moreover, since the side wall is formed at an angle nearly perpendicular to the article placing section, with respect to the weight load placed on the article placing section A sufficient rigidity can be ensured.

The perspective view which shows the external appearance outline | summary of the shelf in the refrigerator of Embodiment 1 of this invention. The perspective view which shows the external appearance outline | summary of the bottom face side (back surface) of the shelf in a warehouse shown by FIG. The arrow sectional view in the AA line of the front flange part shown by FIG. The cross-sectional perspective view which shows the principal part of the warehouse shelf of the refrigerator which concerns on Embodiment 2 of this invention. The perspective view which shows the external appearance outline | summary of the shelf in the refrigerator of Embodiment 3 of this invention. FIG. 6 is a cross-sectional view taken along line AA of the front flange portion shown in FIG. 5. Sectional perspective view which shows the principal part of the cabinet shelf of the refrigerator which concerns on Embodiment 4 of this invention. The perspective view which shows the external appearance outline | summary of the shelf in the refrigerator which concerns on Embodiment 5 of this invention. FIG. 9 is a cross-sectional view taken along line AA of the front flange portion shown in FIG. 8. The perspective view which shows the external appearance outline | summary of the bottom face side (back surface) of the shelf in the refrigerator compartment which concerns on Embodiment 6 of this invention.

Embodiment 1 FIG.
Hereinafter, the refrigerator shelf according to Embodiment 1 of the present invention will be described with reference to FIGS. Note that the same reference numerals denote the same or corresponding parts throughout the drawings. In the figure, a shelf 1 in a refrigerator (not shown) is made of only a transparent synthetic resin material and is integrally molded by a plastic injection molding method. The shelf 1 includes a plate-shaped article placement section 2 on which articles such as food and food are placed, a side wall 3 integrally formed so as to extend upward in the four directions around the article placement section 2, and an article placement On the outer peripheral portion of the bottom surface 2a of the mounting portion 2, there is a reinforcing portion 4 protruding downward from the bottom surface 2a. And the front flange 5 integrally formed so that it may extend ahead from the top part of this side wall 3 is integrally formed in the side wall 3 located in the front side (left diagonal downward direction of FIG. 1) of a refrigerator.

  Even if liquid such as a beverage overflows on the article placement unit 2, the side wall 3 stays in the article placement unit 2 and prevents liquid leakage into the refrigerator compartment. Further, the side wall 3 is formed at an angle close to perpendicular to the article placement portion 2, and has an effect of reinforcing the weight load of food or the like placed on the article placement portion 2. The front flange 5 is integrally formed so that the upper surface side is smoothly curved in a projecting manner, and a plurality of front flange reinforcing ribs 5 a provided on the lower surface side extend along the longitudinal direction of the front flange 5. The front flange 5 has a shape with a turn 5b in order to ensure designability and ease of use for putting in / out foods, and the height of the foremost part is lower than the last part. The entire flange 5 has a shape that is pointed forward.

  As described above, the vertical position of the front flange 5 is higher than that of the article placement portion 2, and in cooperation with the side wall 3, the front side of the article placement portion 2 is more heavily loaded by the weight load than the rear side. It has a role to reinforce that 1 is easily deformed and to prevent an object placed on the article placement section 2 from falling off the article placement section 2. When the inner shelf 1 is molded by the plastic injection molding method by the front flange reinforcing rib 5a, sink marks are generated in the front flange 5. Therefore, the surface of the front flange 5 has a texture for making the sink marks inconspicuous. Processing (not shown) is applied.

  In-house flanges 6 are formed at the left and right ends of the inside shelf 1. When the shelf 1 is actually installed in the refrigerator, the chamber installation flange 6 is supported by a rail portion (not shown) in the refrigerator. Moreover, although the inside installation flange 6 is not folded back, like the front flange 5, the inside installation flange 6 is higher than the article placement unit 2, and is reinforced against the deflection of the inside shelf 1 and placed on the article placement unit 2. It has a role which prevents the stored foods and the like from falling out of the article placement unit 2. A rear flange 7 is formed at the rear end of the shelf 1 in the cabinet, and, like the front flange 5, is higher than the article placement portion 2 and has a folded shape. It has a function to reinforce the deflection of the shelf 1 and to prevent the stored items such as foods placed on the article placement unit 2 from dropping from the article placement unit 2.

  The reinforcing portion 4, which is a typical characteristic portion of the present invention, has a thickness substantially the same as that of the side wall 3 in the first embodiment, and is entirely below the bottom surface 2 a of the article placement portion 2 from the side wall 3. It consists of a bottom peripheral rib 4A that protrudes so as to extend over the circumference. The bottom peripheral reinforcing rib 4A as the reinforcing portion 4 is formed along the outer peripheral end of the bottom surface 2a of the article placing portion 2 and has a substantially square shape with rounded corners as a whole. As shown in FIG. 3, the dimension is much lower than the height of the side wall 3 and is about the same as or shorter than the thickness of the article placement portion 2. The bottom peripheral reinforcing rib 4A is configured as described above, and thus acts to increase the rigidity against the bending moment and the torsional moment generated in the outer peripheral portion of the article placing portion 2 due to the weight load of the food container or the like. .

  In the first embodiment configured as described above, the reinforcing portion 4 has substantially the same thickness as the side wall 3 and extends from the side wall 3 to the lower side of the bottom surface 2a of the article placement portion 2 over the entire circumference. By comprising the formed bottom surface surrounding reinforcing rib 4A, the effect of suppressing the deflection of the internal shelf 1 can be increased. Moreover, since the amount of synthetic resin required as the reinforcing portion 4 is smaller than installing reinforcing ribs at other locations, the effect of suppressing the deflection of the internal shelf 1 is reinforced at other locations with the same amount of synthetic resin used. It can be higher than installing ribs. This eliminates the need for a metal reinforcing member that has been necessary in the past, and eliminates the need for assembly work with the internal shelf 1. In addition, since the amount of synthetic resin used can be reduced, the amount of raw materials can be reduced, and all of material costs, assembly processing costs, manufacturing defects, and the like can be reduced, leading to energy saving.

  In addition, since a metal reinforcing member can be made unnecessary, there is no need for extra cleaning work because fine dust or food juice does not enter the gap between the shelf 1 and the reinforcing member, and the refrigerator is hygienic. Can be kept in. When the internal shelf 1 is cleaned by increasing the rigidity, the internal shelf 1 can be prevented from being broken. Further, since the reinforcing portion 4 is formed to extend the side wall 3 downward with substantially the same thickness as the side wall 3, when the inner shelf 1 is formed by the plastic injection molding method, the reinforcing portion 4 is usually generated at a location where the reinforcing rib is applied. The sink of the synthetic resin does not occur and the appearance is not deteriorated. Further, when the internal shelf 1 is removed from the refrigerator and temporarily placed on a table or the like when cleaning the interior, the reinforcing portion 4 protruding downward contacts the table or the like, so that the bottom surface 2a of the article placement portion 2 Does not come into contact with the table or the like, and it is difficult to be damaged.

Embodiment 2. FIG.
Next, the refrigerator shelf according to Embodiment 2 of the present invention will be described with reference to FIG. 4 corresponds to a cross-sectional view taken along line AA in FIG. Further, in this second embodiment, the front flange reinforcing rib 5a in the first embodiment is deleted and the side wall 3 is deepened, and the external shape is substantially the same as FIG. 1 of the first embodiment. This will be described with reference to FIG. In the figure, the height H of the side wall 3 located on the front side of the refrigerator connected to the front flange 5 is formed to be higher by a predetermined dimension than that of FIG. 3, and a reinforcing rib is provided on the lower surface side of the front flange 5. It is not a flat shape. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  According to the second embodiment configured as described above, the rigidity is reduced by omitting the front flange reinforcing rib 5a (FIG. 3) provided on the lower side of the front flange 5, and the height H of the side wall 3 is set to a predetermined value. It can be compensated by increasing the dimensions. Further, since the amount of synthetic resin used to increase the height H by a predetermined dimension can be reduced as compared with the case where the front flange reinforcing rib 5a is provided, the amount of synthetic resin used is that of the first embodiment. Can also be reduced. Further, there is an attendant effect that the embossing of the front flange 5 required when installing the front flange reinforcing rib 5a of FIG. 3 can be made unnecessary.

Embodiment 3 FIG.
Next, a refrigerator shelf in the refrigerator according to Embodiment 3 of the present invention will be described with reference to FIGS. In the third embodiment, the reinforcing portion 4 is provided to connect the article placement portion 2 and the side wall 3 in place of the bottom peripheral reinforcing rib 4A in the first and second embodiments, and is bent or bent downward. The groove portion 4B is formed. As shown in FIG. 6, the cross-sectional shape of the groove-like portion 4 </ b> B as the reinforcing portion 4 is a groove shape having a substantially U-shaped cross-section formed so as to connect the outer peripheral end portion of the planar article placement portion 2 and the side wall 3. It has become. That is, the upper end portion of one side wall (upper right side in FIG. 6) of the groove-shaped portion 4B having a substantially U-shaped cross section is connected to the outer peripheral end portion of the article placing portion 2, and The other side wall portion is integrally formed so as to serve as the side wall 3.

  Then, the groove-shaped portion 4B is connected to the side wall 3 via the first bent portion 41 between the article placement portion 2, the second bent portion 42 at the bottom of the groove-shaped portion 4B, and the third bent portion 43. ing. In addition, the groove-like portion 4B is formed in a stepped shape around the periphery of the outer periphery of the article placement portion 2. In the third embodiment, the front flange 5 is formed in a slightly angular design using a straight line, and a single front flange reinforcing rib 5 a is provided below the boundary portion with the side wall 3. In addition, substantially in the same manner as in the first embodiment, in-house installation flanges 6 are provided at the left and right ends of the in-house shelf 1, and a rear flange 7 is provided at the rear end.

  According to the third embodiment configured as described above, the bending moment generated in the outer peripheral portion of the article placing portion 2 due to the weight load of the food container or the like by the groove-like portion 4B instead of the bottom peripheral reinforcing rib 4A, The rigidity against the torsional moment can be increased as well. Furthermore, the stress generated by the bending moment and the torsional moment can be dispersed at the first to third three bent portions 41, 42, 43 of the reinforcing portion 4 formed by the groove-like portion 4B. It is possible to avoid destruction of the internal shelf 1 due to a sudden increase in weight load, which occurs when a large amount of food items or the like are installed on the internal shelf 1.

Embodiment 4 FIG.
Next, the refrigerator shelf according to Embodiment 4 of the present invention will be described with reference to FIG. 7 corresponds to a cross-sectional view taken along line AA in FIG. In this fourth embodiment, the reinforcing portion 4 is replaced with the bottom peripheral reinforcing rib 4A (FIG. 4) in the second embodiment, and the thickness in the vicinity of the outer peripheral portion of the article placing portion 2 is changed to the lower end portion of the side wall 3. This is the thickest portion, and is configured by a tapered thick portion 4C formed so as to become thinner in a tapered shape from the lower end portion of the side wall 3 toward the central portion of the article placement portion 2. In addition, since the upper surface of the article placement portion 2 is formed in a flat shape, the tapered thick portion 4C protrudes most downward at the lower end portion of the side wall 3 that is the outer peripheral portion of the article placement portion 2. It is formed in such a taper shape. Other configurations are the same as those of the second embodiment.

  According to the fourth embodiment configured as described above, the reinforcing portion 4 configured by the tapered thick portion 4C is similar to the bottom peripheral reinforcing rib 4A in that the article placement portion is subjected to a weight load such as a food container. The rigidity with respect to the bending moment and torsional moment which generate | occur | produce in the outer peripheral part of 2 can be improved. Further, the tapered thick portion 4C has a characteristic that it can disperse the stress generated by the bending moment and the torsional moment because of its tapered shape.

Embodiment 5 FIG.
Next, a refrigerator shelf in the refrigerator according to Embodiment 5 of the present invention will be described with reference to FIGS. In the fifth embodiment, the top surface reinforcing rib 8 integrally formed so as to extend the side wall 3 of the article placing portion 2 upward is provided with respect to the bottom surface surrounding reinforcing rib 4A shown in FIG. This corresponds to a configuration in which the front flange reinforcing rib 5a is omitted. As shown in FIG. 8, the upper surface reinforcing rib 8 is provided along the outer peripheral side wall 3 of the article placing portion 2 and is formed in a quadrangular shape with rounded corners as a whole. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  In the fifth embodiment configured as described above, the rigidity of the front side of the inner shelf 1 is ensured by providing the upper surface reinforcing rib 8 formed so as to extend the side wall 3 upward, and the front flange 5 is secured. The same effects as those of the second embodiment can be obtained, such as omitting the lower front flange reinforcing rib 5a (FIG. 3). In addition, when the top reinforcing rib 8 is further added to the upper end of the side wall 3 in the configuration of the second embodiment, the bending moment generated in the outer peripheral portion of the article placing portion 2 due to a weight load such as a food container Further, the rigidity against torsional moment can be further increased. For this reason, it becomes possible to further reduce the thickness of the main body shelf 1 body, and the amount of synthetic resin used can be reduced as compared with that of the second embodiment.

Embodiment 6 FIG.
Next, the refrigerator shelf according to Embodiment 6 of the present invention will be described with reference to FIG. In addition, this Embodiment 6 adds the bottom face reinforcement rib 9 to the bottom face 2a of the article mounting part 2 with respect to what provided the bottom circumference reinforcement rib 4A shown in FIG. As shown in the figure, the bottom reinforcing ribs 9 are formed in a straight line extending so as to connect opposite sides in the front-rear direction of the refrigerator, and in this example, a plurality (three) of them are provided apart from each other in parallel. Since other configurations are the same as those of the second embodiment, description thereof is omitted.

  In the sixth embodiment configured as described above, since the plurality of bottom reinforcing ribs 9 are further added to the bottom surface 2a of the article placing portion 2 in addition to the configuration of the second embodiment, the food container or the like The rigidity against bending moment and torsional moment generated in the outer peripheral portion of the article placing portion 2 due to the weight load can be further increased. For this reason, the amount of synthetic resin used can be reduced by thinning the inside shelf 1 body. The number of the bottom reinforcing ribs 9 and the extending direction of the bottom reinforcing ribs 9 are not particularly limited. For example, the bottom reinforcing ribs 9 are formed in the left-right direction, or the lattice intersects the vertical and horizontal directions or the oblique directions. You may form in a shape.

  By the way, although the said Embodiment 1-6 demonstrated the case where the article mounting part 2 was smooth, it is not limited to this. It goes without saying that the inventions of Embodiments 1 to 6 can be appropriately combined with each other.

  1 shelf inside, 2 article placement section, 2a bottom surface, 3 side wall, 4 reinforcing section, 4A bottom reinforcing rib, 4B groove section, 4C tapered thick section, 5 front flange, 5a front flange reinforcing rib, 5b Folding, 6 Inside flange, 7 Rear flange, 8 Upper surface reinforcing rib, 9 Bottom surface reinforcing rib, 41 First bent portion, 42 Second bent portion, 43 Third bent portion

Claims (2)

Made of synthetic resin material, an article placement section, a side wall provided around the article placement section and formed at an angle close to the article placement section, and an outer peripheral portion of the bottom surface of the article placement section And a reinforcing portion protruding downward from the bottom surface, and is integrally formed so as to extend forward from the top of the side wall located on the front side of the refrigerator. The reinforcing portion has a flange around the bottom surface formed so as to extend from the side wall to the lower side than the bottom surface of the article mounting portion with the same thickness as the side wall. An upper surface reinforcing rib integrally formed so as to extend the top of the side wall upward from the front flange is provided, and the upper surface reinforcing rib is provided on the side wall provided around the article mounting portion and has a rounded corner as a whole. It is characterized by being formed in a square shape The refrigerator in the shelf that. The article mounting portion is formed in a flat plate shape, and bottom reinforcing ribs extending linearly so as to connect opposite sides in the front-rear direction of the refrigerator are integrally formed on the bottom surface of the article mounting portion. The shelf in the refrigerator according to 1.

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