JP4090479B2 - Shelf board and shelf - Google Patents

Description

  The present invention relates to a shelf board and a shelf.

  A hollow shelf body formed of synthetic resin and a metal reinforcing material housed in the hollow space of the shelf body, and a pair of dowel receiving recesses are formed on the lower surface of the shelf body, and storage equipment A shelf board supported by receiving dowels provided in the dowel receiving recesses is known (see Patent Document 1). If it does in this way, a shelf board can be reduced in weight, ensuring rigidity.

Japanese Patent No. 2916875

  However, the shelf board of Patent Document 1 is used for storage equipment such as furniture, kitchen equipment, and vanity, and has a maximum load of, for example, about 200 kg like a shelf board or shelf used in a factory or warehouse. May not be able to withstand. That is, there is a problem that the shelf board may bend in the longitudinal direction and the shelf board may come off the dowel. In this case, if the thickness of the shelf board is increased or the number of reinforcing members is increased, the manufacturing cost increases.

  Therefore, an object of the present invention is to provide a shelf board and a shelf that can be manufactured at low cost while increasing the maximum mounting load.

  In order to solve the above-mentioned problem, according to the first invention, both ends in the longitudinal direction are placed and supported on a pair of shelf supports that are attached to the support of the shelf and expand in a planar shape. In the shelf board, the shelf board includes a shelf board body formed of a synthetic resin, the shelf board body includes a rectangular load receiving plate portion that extends in a planar shape, and the load receiving plate portion over substantially the entire length in the longitudinal direction. A pair of side wall portions projecting downward from both side edges in the width direction, and at least one reinforcing portion projecting downward from the load receiving plate portion over substantially the entire length in the longitudinal direction between the side wall portions. An upper plate and a lower plate that extend in a substantially parallel manner while being spaced apart from each other in the vertical direction, and a plurality of vertical ribs that connect the upper plate and the lower plate to each other, and are spaced apart from each other in the width direction. Extend over the entire length A plurality of vertical ribs so that a plurality of longitudinally extending hollow spaces are defined in the load receiving plate portion, and each side wall portion includes an upper plate of the load receiving plate portion and an upper portion of the load receiving plate portion. A pair of vertical walls projecting downward from the plate over the lower plate and a bottom wall that connects the bottom ends of the vertical walls to each other, thereby defining a hollow space extending in the longitudinal direction in each side wall portion. The reinforcing portion includes a top plate of the load receiving plate portion, a pair of vertical walls protruding downward from the upper plate of the load receiving plate portion over the lower plate, and a bottom that connects the bottom ends of the vertical walls to each other. The side wall portion and the bottom wall of the pair of side wall portions and the bottom wall of the reinforcing portion are substantially at the same height position. The bottom ends of these bottom walls So as to be placed on Kitana 受上, on at least one of the hollow space of the side wall portion and the reinforcing portion, the longitudinal direction substantially shelf housing the first reinforcing member extending along the entire length plate is provided.

  According to a second invention, in the first invention, the pair of vertical walls of the side wall portion is composed of an outer wall and an inner wall, and at least one side wall portion defines an upper plate and a bottom that define the hollow space. Projections are formed on the walls, respectively, and the first reinforcing member is accommodated between the projections and the inner wall of the side wall portion.

  According to a third aspect, in the second aspect, the outer wall of the side wall portion is a concave groove extending substantially over the entire length in the longitudinal direction so as to hold the display device, and is inward of the hollow space of the side wall portion. A concave groove forming a projecting portion is formed, and a second reinforcing material extending substantially over the entire length in the longitudinal direction is accommodated between the projecting portion and the projection.

  According to a fourth invention, in the second invention, a receiving groove extending substantially over the entire length in the longitudinal direction is formed in each of the protrusions, and a third reinforcing material extending over the entire length in the longitudinal direction is formed in each of the receiving grooves. Contained.

  According to a fifth aspect, in any one of the first to fourth aspects, the reinforcing member is made of metal or wood.

Moreover, in order to solve the said subject, according to 6th invention, several support | pillars and at least a pair of shelf holders extended to the planar shape attached to these support | pillars, Any one of Claim 1-5 A shelf is provided that includes at least one shelf as described in 1 above and a shelf that is supported by being placed on the shelf supports at both ends in the longitudinal direction.
According to a seventh aspect, in the sixth aspect, a protruding portion protruding upward is formed at a portion of the shelf support that is spaced inward in the longitudinal direction from the support column. The shelf board is placed on and supported by.

  It can be manufactured at low cost while increasing the maximum mounting load.

  Referring to FIG. 1, the shelf 1 includes, for example, four support columns 2, for example, four pairs of shelf supports 3 attached to the support columns 2, and, for example, four sets of shelf board groups 4 supported by the shelf supports 3. To do. Each shelf group 4 is composed of, for example, three identical shelf boards 5 arranged side by side in the depth direction.

  The columns 2 are erected at rectangular corners while being separated from each other. In the example shown in FIG. 1, the support column 2 is formed of a square pipe. However, the support column 2 may have a C-shaped or L-shaped cross section. Furthermore, each support column 2 is provided with a plurality of holes 2a aligned in the longitudinal direction.

  As shown in FIG. 2, each shelf receiver 3 has a shelf receiving portion 3a that expands in a substantially horizontal plane, a vertical portion 3b coupled to the shelf receiving portion 3a, and a vertical portion 3b opposite to the shelf receiving portion 3a. And a pair of ear-shaped protrusions 3c protruding to the side. By fitting and engaging these ear-like protrusions 3c in the holes 2a, the shelf supports 3 can be detachably fixed to the pair of support columns 2.

  A pair of shelf groups 4, that is, three shelf plates 5 are placed on a pair of shelf receptacles 3, that is, two shelf receptacles 3 attached at the same height position. In this case, each shelf board 5 extends substantially from the vertical part 3 b of one shelf holder 3 to the vertical part 3 b of the other shelf holder 3, and both longitudinal ends thereof are mounted on the shelf receiving part 3 a of the shelf holder 3. Placed and supported.

  These support columns 2 and shelf supports 3 are made of a metal such as iron or stainless steel, for example.

  Next, the shelf board 5 will be described with reference to FIG. The shelf board 5 includes a shelf board body 6 made of synthetic resin. The shelf body 6 includes a rectangular load receiving plate portion 6a extending in a plane, a pair of side wall portions 6b and 6c protruding downward from both side edges in the width direction of the load receiving plate portion 6a over substantially the entire length in the longitudinal direction. It includes at least one reinforcing portion 6d that protrudes downward from the load receiving plate portion 6a over substantially the entire length in the longitudinal direction at substantially the center between the side wall portions 6b and 6c.

  The load receiving plate portion 6a includes an upper plate 6aa and a lower plate 6ab that are spaced apart from each other in the vertical direction and expand in parallel, and a plurality of vertical ribs 6ac that connect the upper plate 6aa and the lower plate 6ab to each other in the width direction. A plurality of vertical ribs 6ac extending substantially over the entire length in the longitudinal direction while being separated from each other. As a result, the upper plate 6aa, the lower plate 6ab, and a pair of adjacent vertical ribs 6ac define a plurality of hollow spaces 6ad extending in the longitudinal direction in the load receiving plate portion 6a.

  On the other hand, the side wall portion 6b includes an upper plate 6aa of the load receiving plate portion 6a, a pair of vertical walls 6ba and 6bb protruding downward from the upper plate 6aa of the load receiving plate portion 6a over the lower plate 6ab, and bottom ends of these vertical walls. 6ba and 6bb are comprised by the bottom wall 6bc which mutually couple | bonds. As a result, the upper space 6aa, the pair of vertical walls 6ba and 6bb, and the bottom wall 6bc define a hollow space 6bd extending in the longitudinal direction in the side wall portion 6b. Similarly, the side wall portion 6c includes an upper plate 6aa of the load receiving plate portion 6a, a pair of vertical walls 6ca and 6cb projecting downward from the upper plate 6aa of the load receiving plate portion 6a over the lower plate 6ab, and bottoms of these vertical walls. The bottom wall 6cc connects the ends 6ca and 6cb to each other. As a result, a hollow space 6cd extending in the longitudinal direction is defined in the side wall portion 6c by the upper plate 6aa, the pair of vertical walls 6ca and 6cb, and the bottom wall 6cc. The vertical walls 6ba and 6ca positioned outside the shelf main body 6 are referred to as outer walls, and the vertical walls 6bb and 6cb positioned inside the shelf main body 6 are referred to as inner walls.

  The reinforcing portion 6d includes an upper plate 6aa of the load receiving plate portion 6a, two vertical walls 6da projecting downward from the upper plate 6aa of the load receiving plate portion 6a over the lower plate 6ab, and the load receiving plate between these vertical walls 6da. For example, one vertical wall 6db that protrudes downward from the upper plate 6aa of the portion 6a beyond the lower plate 6ab and a bottom wall 6dc that joins the bottom ends of the vertical walls 6da and 6db together. As a result, the upper plate 6aa, the vertical wall 6da, the vertical wall 6db, and the bottom wall 6dc define at least one hollow space 6dd extending in the longitudinal direction in the reinforcing portion 6d. In the example shown in FIG. 3, for example, two hollow spaces 6dd are defined, that is, the upper plate 6aa, one vertical wall 6da, the vertical wall 6db, and the bottom wall 6dc define one hollow space 6dd. The plate 6aa, the other vertical wall 6da, the vertical wall 6db, and the bottom wall 6dc define the other hollow space 6dd.

  In this case, the lower plate 6ab of the load receiving plate portion 6a extends between the inner wall 6bb of the side wall portion 6b and one vertical wall 6da of the reinforcing portion 6d, and the other vertical wall of the inner wall 6cb of the side wall portion 6c and the reinforcing portion 6d. It will spread between 6da.

  Further, the side wall portions 6b, 6c and the reinforcing portion 6d are formed so that the bottom walls 6bc, 6cc of the side wall portions 6b, 6c and the bottom wall 6dc of the reinforcing portion 6d are at substantially the same height. As a result, both longitudinal ends of these bottom walls 6bc, 6cc, 6dc are placed on the shelf support 3. If it does in this way, the shelf board 5 will be supported on the shelf holder 3 in side wall part 6b, 6c and the reinforcement part 6d, and the shelf board 5 can be supported reliably.

  When attention is paid more to the side wall portion 6b, protrusions 6be are respectively formed on the upper plate 6aa and the bottom wall 6bc that define the hollow space 6bd of the side wall portion 6b. Further, a concave groove 6bf extending substantially over the entire length in the longitudinal direction is formed in the outer wall 6ba of the side wall portion 6b. The concave groove 6bf is for holding a display device such as a label or a tag for displaying the name of an article placed on the shelf board 5, for example, and is a protruding portion toward the inside of the hollow space 6bd of the side wall portion 6b. 6bg is configured. The recessed groove 6bf further has an effect of increasing the vertical strength of the outer wall 6ba or the side wall portion 6b.

  On the other hand, paying attention to the side wall portion 6c, projections 6ce facing each other are formed on the upper plate 6aa and the bottom wall 6cc that define the hollow space 6cd of the side wall portion 6c. In addition, a receiving groove 6ef extending substantially over the entire length in the longitudinal direction is formed in these protrusions 6ce.

  A receiving groove can also be formed in the protrusion 6be of the side wall portion 6b, and a concave groove can also be formed in the outer wall 6ca of the side wall portion 6c.

  The shelf board main body 6 is formed by extrusion molding. Therefore, the load receiving plate portion 6a, the side wall portions 6b and 6c, and the reinforcing portion 6d are integrally formed.

  The shelf body 6 is made of, for example, polyvinyl chloride. Polyvinyl chloride is preferable because it is highly recyclable and has flame resistance, and is particularly friendly to humans, does not rust, and has good weather resistance compared to metals.

  In addition, at least one of the hollow spaces 6bd, 6cd of the side wall portions 6b, 6c and the hollow space 6dd of the reinforcing portion 6d accommodates a reinforcing material extending over almost the entire length in the longitudinal direction. The reinforcing material 7a is made of metal such as iron or stainless steel or wood.

  In the example shown in FIG. 4, the reinforcing material 7a is accommodated in all the hollow spaces 6bd, 6cd, 6dd. More specifically, the reinforcing material 7a is accommodated between the pair of protrusions 6be of the side wall portion 6b and the inner wall 6bb in the hollow space 6bd of the side wall portion 6b. Further, in the hollow space 6cd of the side wall portion 6c, the reinforcing material 7a is accommodated between the pair of projections 6ce and the inner wall 6cb of the side wall portion 6c. Here, the protrusions 6be and 6ce act to position the reinforcing member 7a. Further, the reinforcing material 7a is accommodated in the pair of hollow spaces 6dd of the reinforcing portion 6d.

  In the example shown in FIG. 4, each reinforcing member 7a has a C-shaped cross section, and the top side of the reinforcing member 7a extends along the upper plate 6aa that defines the hollow spaces 6bd, 6cd, 6dd, and the reinforcing member 7a. Extends along the bottom walls 6bc, 6cc, 6dc. The reinforcing material 7a may be formed in other shapes such as a square pipe and a prism.

  Thus, by accommodating the reinforcing material 7a in the hollow space, it is possible to reliably prevent the shelf board 5 from being bent in the longitudinal direction. In particular, the vertical walls 6ba, 6bb, 6ca, 6cb, 6da, 6db defining the hollow spaces 6bd, 6cd, 6dd extend downward from the upper plate 6aa beyond the lower plate 6ab, so that they are directly below the upper plate 6aa. The reinforcing material 7a can be located, and therefore the longitudinal rigidity of the shelf board 5 can be reliably increased.

  Further, in the example shown in FIG. 4, a reinforcing material is accommodated in the hollow space 6bd between the outer wall 6ba and the protrusion 6be in the side wall portion 6b and in the hollow space 6cd between the outer wall 6ca and the protrusion 6ce in the side wall portion 6c. Not so that an air layer is formed. If such an air layer exists, the outer walls 6ba and 6ca can be deformed inward, so that, for example, even when the shelf board 5 collides with a worker, the support column 2 or the like during the assembly, an impact is caused by the air layer. Absorbed.

  An additional reinforcing material may be provided in addition to the reinforcing material 7a. That is, as shown in FIG. 5, for example, a plate-like additional reinforcing material 7 b extending substantially over the entire length in the longitudinal direction can be accommodated between the protruding portion 6 bg and the pair of protrusions 6 be. In this case, the additional reinforcing member 7b is positioned and held by the protruding portion 6bg and the pair of protrusions 6be. Alternatively, as shown in FIG. 6, for example, a plate-like additional reinforcing member 7 c extending substantially over the entire length in the longitudinal direction can be accommodated in the receiving groove 6 cf of the protrusion 6 ce. In this case, the additional reinforcing member 7c is positioned and held by the pair of receiving grooves 6cf. Thus, the rigidity of the shelf board 5 can further be improved by providing the additional reinforcing materials 7b and 7c.

  In this case, the maximum mounting load of the shelf board 5 can be changed only by changing the number or material of the reinforcing members 7a, 7b, 7c.

In the above-described embodiment, each shelf board 5 is supported on the shelf support 3 at the longitudinal end portion including the longitudinal edge of the shelf board 5. However, as shown in FIG. 7, the shelf plate 5 may be supported at a longitudinal end portion spaced inward in the longitudinal direction from the longitudinal edge portion. That is, in the example of FIG. 7, a protruding portion 3c protruding upward is formed at a part of the shelf receiving portion 3a that is spaced inward in the longitudinal direction from the column 2 or the vertical portion 3b, for example, at the tip. The shelf board 5 is placed on and supported by the shaped part 3c. At this time, the shelf board 5 is not placed on the shelf receiving portion 3a other than the protruding portion 3c.
In this way, as shown in FIG. 8A, the fulcrum distance S can be shortened as compared with the case of the shelf holder 3 of FIG. 2 shown in FIG. The deflection of 5 can be further reduced.

It is a whole perspective view of a shelf. It is an expansion schematic for demonstrating a shelf holder. It is an end view of a shelf main body. It is an end view of a shelf board. It is a partial end elevation of the shelf board of another Example by this invention. It is a partial end elevation of the shelf board of another Example by this invention. It is a side view of the shelf holder of another Example by this invention. It is a figure for demonstrating the distance between fulcrums.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shelf 2 Support | pillar 3 Shelf receptacle 5 Shelf board 6 Shelf board main body 7a Reinforcing material

Claims (7)

In the shelf board which the longitudinal direction both ends are each mounted and supported on a pair of shelf holders extended in the shape of a plane attached to the support of a shelf, the shelf board,
It has a shelf board body made of synthetic resin,
The shelf body includes a rectangular load receiving plate portion that extends in a planar shape, a pair of side wall portions that protrude downward from both side edges in the width direction of the load receiving plate portion over substantially the entire length in the longitudinal direction, and And at least one reinforcing portion protruding downward from the load receiving plate portion over substantially the entire length in the longitudinal direction,
The load receiving plate portion is composed of an upper plate and a lower plate that extend in parallel while being spaced apart from each other in the vertical direction, and a plurality of vertical ribs that connect the upper plate and the lower plate to each other. A plurality of vertical ribs extending substantially over the entire length in the direction so that a plurality of hollow spaces extending in the longitudinal direction are defined in the load receiving plate portion;
Each side wall portion includes an upper plate of the load receiving plate portion, a pair of vertical walls protruding downward from the upper plate of the load receiving plate portion over the lower plate, and a bottom wall that couples the bottom ends of the vertical walls to each other. Configured to define a longitudinally extending hollow space in each side wall portion;
The reinforcing portion includes an upper plate of the load receiving plate portion, a pair of vertical walls protruding downward from the upper plate of the load receiving plate portion over the lower plate, and a bottom wall that couples the bottom ends of the vertical walls to each other. Configured so that a longitudinally extending hollow space is defined in the reinforcing part,
The side wall portion and the reinforcing portion are formed so that the bottom wall of the pair of side wall portions and the bottom wall of the reinforcing portion are substantially at the same height, and both longitudinal ends of the bottom walls are placed on the shelf support. West,
The shelf board which accommodated the 1st reinforcement material extended in the longitudinal direction substantially full length in at least one among the hollow spaces of a side wall part and a reinforcement part.   A pair of vertical walls of the side wall portion is composed of an outer wall and an inner wall, and at least one side wall portion forms protrusions on an upper plate and a bottom wall that define the hollow space, and the protrusions and the side wall portions The shelf board of Claim 1 which accommodated the said 1st reinforcement material between the inner walls.   Formed on the outer wall of the side wall portion is a concave groove extending substantially along the entire length in the longitudinal direction to hold the display device, and forming a projecting portion toward the inside of the hollow space of the side wall portion. The shelf board of Claim 2 which accommodated the 2nd reinforcement material extended over the full length in the longitudinal direction between the said and processus | protrusion.   The shelf according to claim 2, wherein receiving protrusions are formed in the protrusions so as to extend over substantially the entire length in the longitudinal direction, and a third reinforcing material extending over the entire length in the longitudinal direction is accommodated in the receiving grooves.   The shelf board as described in any one of Claim 1 to 4 which comprised the said reinforcing material from the metal or the timber.   A plurality of columns, at least a pair of shelf holders attached to these columns and extending in a planar shape, and at least one shelf plate according to any one of claims 1 to 5, wherein both ends in the longitudinal direction are shelves. A shelf provided with a shelf board that is placed on and supported by a receiving plate.   A protruding portion protruding upward is formed on a portion of the shelf holder that is spaced inward in the longitudinal direction from the support column, and a shelf board is placed on and supported by the protruding portion. Item 10. The shelf according to item 6.

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