Shelf

Abstract

To provide a technique for facilitating performance of management of a plurality of support pillars.SOLUTION: In a shelf 10, a plurality of short support pillars 50 are arranged between shelf boards 11, and both end parts of the short support pillars 50 are fitted to a plurality of fitted parts 21 of the shelf board 11. Connection parts 51 for linearly connecting the respective short supporters 50 are arranged at the respective end parts of the short support pillars 50. Support pillar storage parts 85 for storing in a lying state, a support pillar composite body 90 obtained by connecting the short support pillars 50 are arranged on a rear surface of the shelf board 11. Besides, the support pillar composite body 90 and the support pillar storage part 85 include storage lock parts 53B, 53C, 84 which are mutually engaged so as to lock the support pillar composite body 90 inside the support pillar storage part 85.SELECTED DRAWING: Figure 18

Description

[Technical field]

[0001] The present disclosure relates to a shelf having a plurality of support posts assembled between shelf boards. [Background technology]

[0002] As this type of shelf, there is known one in which a plurality of support posts can be detached from a shelf board and attached in a lying state to the underside of the shelf board (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-180992 A (see Figs. 1, 4,

[0028] ) Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional shelves described above, the multiple supports that are detached from the shelf boards tend to get scattered, and some of the multiple supports may get lost. Also, the task of counting whether all the supports are present is time-consuming. In response to this, the present application discloses a technology that makes it easy to manage multiple supports. [Means for solving the problem]

[0005] One aspect of the invention of the present disclosure made to solve the above-mentioned problems is a shelf in which a number of supports are arranged between opposing shelves in the vertical direction, and both ends of the multiple supports are fitted into a number of engaging portions that open onto the top or bottom surface of the shelves, the shelf comprising: connecting portions provided on the ends of the multiple supports, enabling the supports to be arranged in a straight line and connected to each other; a pillar accommodating portion provided on the underside of the shelf, capable of accommodating a pillar complex formed by connecting the supports to each other in a lying position; and accommodating and retaining portions provided on the pillar complex and the pillar accommodating portion that engage with each other and retain the pillar complex within the pillar accommodating portion. Effect of the Invention

[0006] In the shelf of the present disclosure, the support columns removed from the shelf board can be connected together to form a support column complex, which prevents the multiple support columns from scattering and makes it easier than ever to count whether all the support columns are present. This makes it easier to manage the multiple support columns and prevents the support columns from being lost. In addition, the support column complex is kept housed in the support column housing of the shelf board, so the shelf can be easily stored and transported in a disassembled state. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a shelf according to an embodiment of the present disclosure; [Diagram 2] A perspective view of the shelf from below [Diagram 3] FIG. 3A is a perspective view of a fitted part with an open top, and FIG. 3B is a perspective view of a fitted part with an open bottom. [Figure 4] A perspective view of a partially broken girder [Diagram 5] FIG. 5A is a partially enlarged perspective view of the back side of the shelf board, and FIG. 5B is an enlarged perspective view of a receiving and locking portion of the shelf board. [Figure 6] A perspective view of the long support from the front [Figure 7] A perspective view of the long support from the rear [Figure 8] 8A and 8B are perspective views of a fitting portion of a long support. [Figure 9] Cross-sectional view of the fitting area between the shelf board and the long support [Figure 10] Cross-sectional view of the AA section in Figure 9. [Figure 11] FIG. 13 is a perspective view of a state in which a long support is accommodated in a support-support accommodating portion of a shelf board; [Figure 12] A perspective view of the short support from the front [Figure 13] A perspective view of the short support from the rear [Figure 14] 14A and 14B are perspective views of a fitting portion of a short support. [Figure 15] A perspective view of the part where the shelf board and the short support pole are fitted together, partially broken away [Figure 16] Perspective view of the strut complex [Figure 17] FIG. 17A is an enlarged perspective view of a joint between the pillars, and FIG. 17B is a partially cutaway perspective view of the joint between the pillars. [Figure 18] FIG. 1 is a perspective view of a state in which the support column complex is accommodated in the support column accommodating portion of the shelf board; [Figure 19] FIG. 1 is a side cross-sectional view of a state in which the support column composite is accommodated in the support column accommodating portion of the shelf board; [Figure 20] FIG. 20A is a cross-sectional view taken along line BB in FIG. 19, and FIG. 20B is a cross-sectional view taken along line CC in FIG. 19. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] A shelf 10 according to an embodiment of the present disclosure will be described below with reference to Figures 1 to 20. As shown in Figure 1, the shelf 10 according to this embodiment includes a plurality of shelf boards 11 arranged vertically with a gap between them, a plurality of support posts 50 assembled between the shelf boards 11, and a plurality of long support posts 30 assembled between the shelf boards 11 in place of the plurality of support posts 50. Hereinafter, the support posts 50 will be referred to as "short support posts 50" so as to be easily distinguishable from the long support posts 30.

[0009] First, the structure of shelf board 11 will be described. Shelf board 11 is a resin molded product, and as shown in Fig. 2, has a structure in which beams 14 with a rectangular cross section hang down from the four corners of the underside of rectangular main board part 12. Hereinafter, the longitudinal direction of shelf board 11 will be referred to as the "lateral direction H1" and the transverse direction of shelf board 11 will be referred to as the "vertical direction H2".

[0010] As shown in FIG. 1, a plurality of anti-slip grooves 12M extending vertically and horizontally are formed on the upper surface of the main plate portion 12. On the other hand, as shown in FIG. 2, a lattice-shaped reinforcing rib 15 is provided on the lower surface of the main plate portion 12. The reinforcing rib 15 includes a plurality of horizontal ribs 81 extending in the horizontal direction H1 of the shelf board 11, a plurality of vertical ribs 82 extending in the vertical direction H2 of the shelf board 11, and a plurality of auxiliary ribs 83 extending in the vertical direction H2 of the shelf board 11 and lower than the horizontal ribs 81 and the vertical ribs 82. The plurality of horizontal ribs 81 and the plurality of vertical ribs 82 extend over the entire horizontal direction H1 and the entire vertical direction H2 of the shelf board 11. In addition, both ends of the two horizontal ribs 81 arranged at both ends in the vertical direction H2 and the two vertical ribs 82 arranged at both ends in the horizontal direction H1 are connected to the girder portion 14.

[0011] The number of vertical ribs 82 that are not connected to the girder 14 is, for example, two, and these two vertical ribs 82 are disposed at two positions spaced apart on both sides from the center in the horizontal direction H1 of the shelf board 11. A plurality of (for example, four) support column receiving sections 85 partitioned by the horizontal ribs 81 are provided in an area surrounded on all four sides by the pair of vertical ribs 82 and a pair of horizontal ribs 81 one position inward from both ends in the vertical direction H2.

[0012] Furthermore, the auxiliary rib 83 extends over the entire length of the shelf board 11 in the vertical direction H2 at the center of the shelf board 11 in the horizontal direction H1. The multiple auxiliary ribs 83 other than the central auxiliary rib 83 in the horizontal direction H1 are disposed between two pairs of adjacent horizontal ribs 81 at both ends in the vertical direction H2, connecting each pair of horizontal ribs 81. Note that only the connection portions of the multiple auxiliary ribs 83 with the horizontal ribs 81 at both ends in the vertical direction H2 have the same height as the horizontal ribs 81 and the vertical ribs 82, and the remaining portions are lower than the horizontal ribs 81 and the vertical ribs 82 as described above.

[0013] As shown in Fig. 5A, each of the pillar accommodating portions 85 is provided with a pair of accommodating and locking portions 84. As shown in Fig. 5B, the accommodating and locking portions 84 have, for example, a semi-elliptical shape in plan view and protrude from the tip of the horizontal rib 81 into the pillar accommodating portion 85. Also, as shown in Fig. 20A, the surface of the accommodating and locking portion 84 facing the opposite side to the main plate portion 12 forms an inclined surface 84A that is inclined so as to gradually approach the main plate portion 12 toward the tip of the accommodating and locking portion 84, and the surface of the accommodating and locking portion 84 facing the main plate portion 12 forms an inclined surface 84B that is slightly inclined so as to gradually move slightly away from the main plate portion 12 toward the tip of the accommodating and locking portion 84.

[0014] As shown in FIG. 5A, one of the pair of accommodating and locking portions 84 of each column accommodating portion 85 is disposed near one end of one of the pair of horizontal ribs 81 facing each other across the column accommodating portion 85 in the horizontal direction H1, and the other of the pair of accommodating and locking portions 84 is disposed near the other end of the other of the pair of horizontal ribs 81 in the horizontal direction H1. The pair of accommodating and locking portions 84 are disposed at positions that are point symmetrical with respect to the centroid of the planar shape of the column accommodating portion 85. Each column accommodating portion 85 is provided with four protrusions 81T that protrude from the horizontal ribs 81 and extend in the vertical direction. Two of the four protrusions 81T are disposed so as to extend from each of the accommodating and locking portions 84 toward the main plate portion 12, and the remaining two protrusions 81T are disposed at positions that face the two protrusions 81T across the column accommodating portion 85 in the vertical direction H2.

[0015] As shown in Fig. 2, the planar shape of the girder 14 is a rectangle whose long sides are in the short direction of the shelf board 11. In addition, as shown in Fig. 3A, the upper surface of the shelf board 11 has an upper surface recess 12A formed by recessing a rectangular area directly above the lower surface of the girder 14.

[0016] A main hole 18A having a rectangular shape whose cross section is long in the vertical direction H2 is formed inside the girder 14, and a plurality of lightening holes 18C are formed on both sides of the main hole 18A in the vertical direction H2. A partition wall 17 is provided at a position exactly in the center between the upper surface of the girder 14 and the lower surface of the girder 14, and the main hole 18A and the plurality of lightening holes 18C are divided into two parts, upper and lower, by the partition wall 17. The upper and lower parts of the divided main hole 18A above and below the partition wall 17 form a pair of fitted parts 21.

[0017] As shown in Fig. 2, the girder 14 is provided with an engagement hole 22 that opens into the outer surface of the short side of the shelf board 11. The engagement hole 22 has a rectangular shape that extends in the vertical direction across the upper and lower sides of the partition wall 17, and communicates with both of the pair of fitted portions 21 as shown in Fig. 4. In addition, as shown in Fig. 4, the partition wall 17 has a rectangular cutout portion 17K formed by cutting out an edge portion facing the engagement hole 22.

[0018] 3A and 3B, reinforcing ribs 19 are formed on both the upper and lower surfaces of the partition wall 17. The reinforcing rib 19 has a structure in which a plurality of radial ribs 19A extend radially from a circular rib 19B located at the center of the planar cross section of the fitted portion 21.

[0019] The inner surface of the fitted portion 21 is provided with an introduction portion 21G that gradually narrows from the opening end to a position near the opening end, and narrows at an extremely small angle from the position near the opening end to the partition wall 17. The inner surface of the fitted portion 21 is formed with a plurality of protrusions 21T extending in the vertical direction.

[0020] This completes the explanation of the structure of the shelf board 11. Next, the structure of the long support pillar 30 will be explained. The long support pillar 30 is a resin molded product, and as shown in Figures 6 and 7, comprises a support pillar body 32 extending in the vertical direction and a pair of fitting portions 31 disposed on both ends thereof. The support pillar body 32 has a groove wall 33 that has a U-shaped cross section and extends in the vertical direction, both ends of which are closed by a pair of horizontal end walls 34, and is provided with reinforcing ribs 35 (see Figure 7) inside.

[0021] Hereinafter, the side where the groove wall 33 is open will be referred to as the "rear side of the long support 30," and the opposite side will be referred to as the "front side of the long support 30," while the groove width direction of the groove wall 33 will be referred to as the "lateral direction of the long support 30," and the horizontal direction perpendicular to that will be referred to as the "front-to-rear direction of the long support 30."

[0022] The width of the groove wall 33 is larger than the thickness in the front and rear directions, and as shown in FIG. 7, the rear surface of the groove wall 33 is a vertical flat surface. The pair of end walls 34 are shaped like a horizontally long rectangle with four corners chamfered, and the rear end protrudes rearward from the rear end surface of the groove wall 33. As shown in FIG. 6, the groove wall 33 has a pair of narrowed portions 33A at positions near both ends in the longitudinal direction, the width of which gradually narrows toward the center. At the rear position of the pair of narrowed portions 33A, two pairs of accommodation locking portions 33B are provided, totaling four, which protrude from the rear edge of the groove wall 33 in a stepped shape on both sides. As shown in FIG. 7, the reinforcing rib 35 is composed of a vertical rib 35A that connects the pair of end walls 34 at the center of the lateral direction of the groove wall 33, and a plurality of horizontal ribs 35B that are perpendicular to the vertical ribs 35A at multiple positions in the longitudinal direction.

[0023] The pair of fitting parts 31 have the same shape and are arranged so as to be plane symmetrical to each other. Specifically, as shown in Figures 8A and 8B, the fitting part 31 includes a shaft main body 36 and an elastic engagement piece 40 that protrude from the outer surface of the end wall 34. The shaft main body 36 has horizontal fitting plate parts 38A, 38B arranged at the tip part and the middle part in the vertical direction, and a plurality of ribs and walls perpendicular to them.

[0024] The fitting plates 38A, 38B are shaped like a horizontally elongated rectangle smaller than the end wall 34, with the four corners rounded and a rectangular cutout 38C opening on one front side. Moreover, the fitting plate 38B closer to the end wall 34 is slightly larger overall than the fitting plate 38A away from the end wall 34. Furthermore, a groove wall 37E standing from the end wall 34 is connected to the opening edge of the cutout 38C of the fitting plates 38A, 38B.

[0025] In detail, as shown in Fig. 8A, a central rib 37B is provided in the center of the fitting portion 31 in the front-rear direction, which extends from the end wall 34 to the fitting plate portion 38A, and the fitting plate portions 38A, 38B are divided into two portions, front and rear, by the central rib 37B. In addition, three rear side ribs 37A are provided behind the central rib 37B, which are provided at the lateral center and positions toward both ends of the central rib 37B and connected to the central rib 37B, and four front side ribs 37C are provided in front of the central rib 37B, which are provided at the lateral center and positions toward both ends of the central rib 37B, which are provided at the front side of the central rib 37B, which are provided at two on each side of the lateral center of the central rib 37B and connected to the central rib 37B, as shown in Fig. 8B. As shown in Figures 8B and 10, the central portion of the central rib 37B forms the groove bottom 37D of the groove wall 37E, and the two front ribs 37C closest to the center among the four front ribs 37C form a pair of groove side portions of the groove wall 37E.

[0026] 8A and 8B, the side end faces of the ribs 37A-37C and the side faces of the fitting plates 38A, 38B are flush with each other at the intersections. This results in the entire shaft body 36 having a vertical groove 36M on the front surface of the prismatic body. The side end faces of the ribs 37A-37C are inclined so as to protrude slightly outward as they approach the end wall 34, and the shaft body 36 becomes slightly thicker toward the base end.

[0027] As shown in Fig. 8B, the elastic engagement piece 40 has a cantilever shape standing up from the end wall 34, and the base end of the elastic engagement piece 40 is located at the front end of the vertical groove 36M. Also, as shown in Fig. 9, the entire elastic engagement piece 40 protrudes slightly away from the end wall 34 beyond the end face 36A of the shaft body 36.

[0028] An engagement protrusion 41 is formed on the front surface of the elastic engagement piece 40, protruding forward over the entire range from a position shifted toward the end wall 34 side from the end face 36A of the shaft main body 36 to the tip of the elastic engagement piece 40. The engagement protrusion 41 is provided with an insertion inclined portion 41A that is inclined so as to approach the rear surface of the elastic engagement piece 40 as it approaches the tip of the elastic engagement piece 40. As shown in Fig. 8A, a recess 42 is formed on the back side of the engagement protrusion 41 of the elastic engagement piece 40. The recess 42 is open to the tip surface and the inner surface of the elastic engagement piece 40.

[0029] The fitting portion 31 of the long support 30 is attached to the fitted portion 21 of the shelf board 11 as follows. That is, the rectangular planar shape of the end wall 34 of the long support 30 and the rectangular planar cross-sectional shape of the girder 14 are overlapped, the elastic engagement piece 40 of the long support 30 is arranged to face the engagement hole 22 side in the fitted portion 21, and the fitting portion 31 is pushed into the fitted portion 21. Then, the elastic engagement piece 40 is deflected by the sliding contact between the insertion inclined portion 41A of the engagement protrusion 41 of the fitting portion 31 and the opening edge of the fitted portion 21, and substantially the entire elastic engagement piece 40 including the engagement protrusion 41 is received in the vertical groove 36M of the shaft main body 36, and the fitting portion 31 is fitted into the fitted portion 21. 9, when the end wall 34 abuts against the end face of the girder 14, the engaging protrusion 41 faces the engaging hole 22, the elastic engaging piece 40 elastically returns, and the engaging protrusion 41 engages with the engaging hole 22. This prevents the fitting portion 31 from coming off the fitted portion 21 (i.e., it is fitted and fixed), and the entire long support 30 is fixed to the shelf board 11. Moreover, if the engaging protrusion 41 is pushed in until the entire engaging protrusion 41 is removed from the fitted portion 21 through the engaging hole 22, the fitting portion 31 can be removed from the fitted portion 21.

[0030] 11 shows the long support 30 accommodated in the support housing 85 of the shelf board 11. As shown in the figure, in order to accommodate the long support 30 in the support housing 85, for example, the rear surface of the long support 30 may be opposed to the opening of the support housing 85 and the long support 30 may be strongly pushed into the support housing 85. Alternatively, the long support 30 may be slightly tilted in the width direction with the rear surface of the long support 30 opposed to the opening of the support housing 85, and the accommodation locking portion 33B of the long support 30 may be inserted inside one of the accommodation locking portions 84 of the support housing 85, and then the long support 30 may be pushed into the support housing 85.

[0031] When the long pillar 30 is pushed into the pillar housing portion 85, the pair of horizontal ribs 81 of the pillar housing portion 85 are pushed apart by the sliding contact between the inclined surface 84A (see Figs. 5B and 20B) on the front side of the housing locking portion 84 and the long pillar 30, and then elastically return to their original state so that the pair of housing locking portions 84 engage with the pair of housing locking portions 33B diagonally located on the long pillar 30. This keeps the long pillar 30 housed in the pillar housing portion 85. Inside the pillar housing portion 85, the protrusions 81T (see Fig. 5A) are abutted against the side surface of the long pillar 30.

[0032] To remove the long pillar 30 from the pillar housing portion 85, the long pillar 30 is pulled strongly. Then, the pair of horizontal ribs 81 of the pillar housing portion 85 are pushed apart by the sliding contact between the inclined surface 84B (see Figs. 5B and 20B) on the back side of the housing / locking portion 84 and the housing / locking portion 33B of the long pillar 30, and the long pillar 30 comes out of the pillar housing portion 85.

[0033] This concludes the explanation of the structure of the long pillar 30. Next, the structure of the short pillar 50 will be explained. The short pillar 50 is a resin molded product, and comprises a pillar body 52 that is shorter than the pillar body 32 of the long pillar 30, and a pair of fitting portions 51 arranged on both ends of the pillar body 52. ​​Hereinafter, parts of the short pillar 50 that have the same structure as the long pillar 30 will be given the same reference numerals and duplicated explanations will be omitted, and only parts of the short pillar 50 that have a different structure from the long pillar 30 will be explained.

[0034] As shown in Fig. 12, the front part of the groove wall 53 of the pillar body 52 of the short pillar 50 has a pair of drawn portions 33A at both ends, narrowing the width between the ends, while the rear part extends in the vertical direction with a uniform groove width as shown in Fig. 13. Also, as shown in Fig. 13, the reinforcing rib 55 in the groove wall 53 of the short pillar 50 consists of a horizontal rib 55B located in the center of the groove wall 53 in the vertical direction and a vertical rib 55A located in the center of the groove wall 53 in the width direction.

[0035] A pair of accommodating locking portions 53B are provided on both sides of the rear part of the groove wall 53 at both ends in the axial direction of the short pillar 50, and an accommodating locking portion 53C is provided in the center. Both of the accommodating locking portions 53B and 53C have a groove structure, and the accommodating locking portion 53C is longer than the accommodating locking portion 53B. As shown in Figs. 20A and 20B, the accommodating locking portions 53B and 53C are located approximately in the center in the front-rear direction of the entire short pillar 50 (more specifically, in the center in the front-rear direction of the end wall 34). Furthermore, a pair of groove inner side surfaces facing each other in the front-rear direction of the short pillar 50 within the accommodating locking portions 53B and 53C are slightly inclined with respect to the lateral direction of the short pillar 50 so as to move away from each other toward the opening side.

[0036] 14A and 14B, the pair of fitting portions 51 of the short strut 50, like the pair of fitting portions 31 of the long strut 30, comprise an axial body 56 protruding from the outer surface of the end wall 34 and an elastic engagement piece 40. Of the pair of fitting plates 38A, 38B (see FIG. 8A) of the long strut 30, the axial body 56 comprises only the fitting plate 38B that is closer to the end wall 34. The structure between the fitting plate 38B and the end wall 34 of the fitting portion 51 of the short strut 50 is the same as that of the fitting portion 31 of the long strut 30, but the structure of the fitting portion 51 on the opposite side of the end wall 34 with respect to the fitting plate 38B is different from that of the fitting portion 31 of the long strut 30.

[0037] 14A, of the four front ribs 37C, only the two central front ribs 37C protrude from the fitting plate portion 38B to the opposite side of the end wall 34, and of the three rear ribs 37A, only the two rear ribs 37A on both sides protrude from the fitting plate portion 38B to the opposite side of the end wall 34. Also, only the portion of the central rib 37B that is outside the two front ribs 37C protruding from the fitting plate portion 38B protrudes from the fitting plate portion 38B to the opposite side of the end wall 34, and is connected to the two front ribs 37C and the two rear ribs 37A described above. Also, an opposing protrusion 60 is provided between the two rear ribs 37A protruding from the fitting plate portion 38B.

[0038] The opposing protrusion 60 has a square cylindrical shape standing up from the fitting plate portion 38B, and its width is approximately the same as or slightly smaller than the width of the elastic engagement piece 40. The rear surface of the opposing protrusion 60 is disposed in a position slightly offset toward the center of the fitting plate portion 38B from the rear surface of the fitting plate portion 38B, and a pair of ridges 60A extending in the vertical direction are provided on both sides of the rear surface of the opposing protrusion 60.

[0039] 14A, the front surface of the opposing protrusion 60 is located slightly rearward of the front surface of the central rib 37B. Furthermore, the opposing protrusion 60, the front rib 37C, and the rear rib 37A protrude to the same height from the fitting plate portion 38B, and the central rib 37B protrudes to a lower height than these.

[0040] 9 and 15, the elastic engagement piece 40 of the short strut 50 has a structure in which the tip, including part of the engagement protrusion 41, of the elastic engagement piece 40 of the long strut 30 is cut off. And, as shown in Fig. 13, the tip surface of the elastic engagement piece 40 of the short strut 50 is located at a position slightly lower (closer to the end wall 34) than the tip surfaces of the opposing protrusion 60, the front rib 37C, and the rear rib 37A protruding from the fitting plate portion 38B, or at the same height as them.

[0041] 14A, an outer edge rib 57 standing up from the outer edge of the fitting plate 38B is provided beside one of the two front ribs 37C protruding from the fitting plate 38B. The outer edge rib 57 is a circular hole that follows the outer edge of the fitting plate 38B, and one side end of the arc is connected to the central rib 37B. In addition, a protrusion 57A extending in the vertical direction is provided on the outer surface of the side end of the outer edge rib 57 that is away from the central rib 37B.

[0042] As shown in FIG. 14B, an outer edge rib 58 protruding from the outer edge of the fitting plate portion 38B is provided beside one of the two rear ribs 37A protruding from the fitting plate portion 38B that is far from the outer edge rib 57. The outer edge rib 58 is a circular hole along the outer edge of the fitting plate portion 38B, one side end of which is connected to the central rib 37B, and the other side end of which is connected to the rear rib 37A. In addition, a protrusion 58A extending in the vertical direction is provided on the outer surface of the end of the outer edge rib 58 that is far from the central rib 37B. In addition, the outer edge ribs 57, 58 are at the same height as the rear rib 37A, the front rib 37C, and the opposing protrusion 60 protruding from the fitting plate portion 38B.

[0043] 15, the fitting portion 51 of the short support 50 is fitted into the fitted portion 21 of the shelf board 11, similar to the fitting portion 31 of the long support 30, and is prevented from coming off by the engaging protrusion 41 of the elastic engaging piece 40 engaging with the engaging hole 22. Then, by pushing the engaging protrusion 41 into a position where the entire engaging protrusion 41 comes out of the engaging hole 22 into the fitted portion 21, the fitting portion 51 can be easily removed from the fitted portion 21.

[0044] As shown in FIG. 16, the short strut 50 can connect the fitting parts 51 to other short struts 50. That is, the fitting parts 51 also serve as "connecting parts" that connect the short struts 50 to each other. Specifically, the upper short strut 50 is rotated 180 degrees so that the front and rear are reversed with respect to the lower short strut 50 shown in FIG. 16, and arranged coaxially, and the fitting parts 51 of both short struts 50 are made to face each other. Then, as viewed from above, the protrusion protruding from the fitting plate part 38B of one fitting part 51 and the protrusion protruding from the fitting plate part 38B of the other fitting part 51 are arranged in a mutually offset position. Therefore, when the two fitting parts 51 are brought close to each other, the protrusion and recess of one fitting part 51 are engaged with the recess and protrusion of the other fitting part 51 in a concave-convex manner, as shown in FIG. 17A.

[0045] Hereinafter, the concave-convex engagement between the fitting portions 51 will be described in detail with reference to Fig. 17B. Hereinafter, only when referring to Fig. 17B, the reference numerals of the parts of the lower fitting portion 51 will have an "X" suffix, and the reference numerals of the parts of the upper fitting portion 51 will have a "Y" suffix.

[0046] 17B, ​​when the fitting portions 51X, 51Y are connected to each other, the facing protrusion 60Y of the upper fitting portion 51Y fits between the elastic engagement piece 40X and the facing protrusion 60X of the lower fitting portion 51X, and the facing protrusion 60X of the lower fitting portion 51X fits between the elastic engagement piece 40Y and the facing protrusion 60Y of the upper fitting portion 51Y. Also, the pair of front ribs 37C of the upper fitting portion 51Y fits between the facing protrusion 60X of the lower fitting portion 51X and the pair of rear ribs 37A on both sides thereof, and the pair of rear ribs 37A of the upper fitting portion 51Y are received on both sides of the pair of front ribs 37C of the lower fitting portion 51X. Then, the tips of the facing protrusion 60Y, the rear rib 37AY, and the front rib 37CY of the upper fitting portion 51Y abut against the fitting plate portion 38BX of the lower fitting portion 51X, and the tips of the facing protrusion 60X, the rear rib 37AX, and the front rib 37CX of the lower fitting portion 51X abut against the fitting plate portion 38B (not shown) of the upper fitting portion 51Y. In addition, a pair of protrusions 60AY of the facing protrusion 60Y of the upper fitting portion 51Y abut against the rear surface of the elastic engagement piece 40X of the lower fitting portion 51X, slightly bending the elastic engagement piece 40X, whereby the protrusions 60AY and the elastic engagement piece 40X are pressed against each other and frictionally engaged. Similarly, the elastic engagement piece 40Y of the upper fitting portion 51Y and the facing protrusion 60X of the lower fitting portion 51X also frictionally engage with each other. In this manner, the fitting portions 51 of the upper and lower short struts 50 are held in a connected state. Hereinafter, a pair of connected short struts 50 will be referred to as a strut complex 90.

[0047] 18 and 19 show the state in which the column complex 90 is accommodated in the column accommodating portion 85 of the shelf board 11. To accommodate the column complex 90 in the column accommodating portion 85 as shown in the figures, one end of the column complex 90 is butted against the vertical rib 82 at one end of the column accommodating portion 85 in the longitudinal direction, one side of the column complex 90 in the front-rear direction (i.e., the surface opposite to the surface where the groove wall 53 of one short column 50 opens) faces the opening of the column accommodating portion 85, and the other side of the column complex 90 in the front-rear direction (i.e., the surface where the groove wall 53 of the other short column 50 opens) faces the opening of the column accommodating portion 85, and the column complex 90 is pushed into the column accommodating portion 85 in the same manner as the long column 30 described above. As a result, one of the accommodating and locking portions 84 of the pillar accommodating portion 85 engages with the accommodating and locking portion 53C of one of the short pillars 50 (see Figure 20B), and the other accommodating and locking portion 84 of the pillar accommodating portion 85 engages with the accommodating and locking portion 53B of the other short pillar 50 (see Figure 20A), thereby maintaining the pillar complex 90 accommodated in the pillar accommodating portion 85.

[0048] The configuration of the shelf 10 of this embodiment has been described above. Next, the effects of the shelf 10 will be described. The shelf 10 shown in FIG. 1 is realized by, for example, obtaining and assembling a first shelf set in which five shelves 11 and 16 long columns 30 are packed, and a second shelf set in which five shelves 11 and 16 short columns 50 are packed. Before the assembly work, the multiple long columns 30 and the multiple short columns 50 are not attached to the shelf 11. At this time, if the multiple short columns 50 are connected to form a column complex 90, the scattering of the multiple short columns 50 can be suppressed. For example, if four short columns 50 are connected to form a four-column column complex 90, it is possible to easily confirm that all the short columns 50 are present by confirming that there are four four-column column complexes 90, which is one less than the number of shelves 11, which is five, in the second shelf set. Furthermore, even if two short pillars 50 are connected to form a double pillar complex 90, scattering of the multiple short pillars 50 is suppressed and the task of checking the number of short pillars 50 can be easily performed, compared to when the short pillars 50 are scattered one by one. Note that, although it is preferable that the multiple long pillars 30 can also be connected to each other, since only the multiple short pillars 50 can be connected, it becomes easier to manage the multiple long pillars 30, 50 that combine the long pillars 30 and the short pillars 50.

[0049] When assembling the shelf 10, the column complex 90 is brought close to the shelf board 11, where it is disassembled into the short columns 50 and assembled to the shelf board 11, thereby enabling efficient assembly of the shelf 10. At this time, the short columns 50 constituting the column complex 90 are held in a connected state by frictional engagement, so that the column complex 90 can be easily disassembled into the short columns 50 by simply pulling the short columns 50 apart. In addition, in the column complex 90 state, the elastic engagement pieces 40 of the short columns 50 are supported from the rear side by the opposing protrusions 60 to restrict deformation, so that problems such as excessive deformation of the elastic engagement pieces 40 due to contact between the column complexes 90 are prevented. In addition, the long columns 30 and the short columns 50 can be assembled to the shelf board 11 by the same operation, so that the assembly of the shelf 10 can be performed smoothly.

[0050] When disassembling the shelf 10, the elastic engagement pieces 40 of the long and short supports 30 and 50 are pressed to release the engagement with the shelf board 11, and the long and short supports 30 and 50 are removed from the shelf board 11. In this case, the long and short supports 30 and 50 can be removed from the shelf board 11 by the same operation, so the disassembly of the shelf 10 can be performed smoothly.

[0051] The short pillars 50 removed from the shelf board 11 are joined two by two to form a double pillar complex 90, which can be pushed into the pillar housing section 85 of the shelf board 11 and held in the housed state in the pillar housing section 85. Similarly, the long pillars 30 can be pushed into the pillar housing section 85 of the shelf board 11 one by one and held in the housed state in the pillar housing section 85. The long pillars 30 and the short pillars 50 can also be housed in the pillar housing section 85 by the same operation. Furthermore, the protruding height of the multiple girder portions 14 from the back surface of the shelf board 11 is higher than the long pillars 30 and pillar complex 90 held in the pillar storage portion 85 (see Figure 20A), so even if multiple shelf boards 11 holding the long pillars 30 and short pillars 50 are stacked, the long pillars 30 and short pillars 50 held by the shelf boards 11 do not interfere with the main plate portion 12 of the shelf board 11 below, and the shelf boards 11 can be stacked in a stably state.

[0052] As described above, in the shelf 10 of this embodiment, the short supports 50 detached from the shelf board 11 can be connected together to form the support column complex 90, which makes it easier to manage the multiple short supports 50 and long supports 30 and prevents the short supports 50 and long supports 30 from being lost as compared to the conventional method. In addition, the support column complex 90 and the long supports 30 are kept housed in the support column housing portion 85 of the shelf board 11, which makes it easy to store and transport the shelf 10 in a disassembled state.

[0053] The short pillars 50 engage with each other simply by rotating one against the other and butting them together, making it easy to connect the short pillars 50 together. Also, one short pillar 50 and the other short pillar 50 can be connected to each other with the front surface of the one short pillar 50 and the back surface of the other short pillar 50 facing in the same direction, so the positions where the short pillars 50 can be connected to each other can be easily confirmed, making it easy to connect the short pillars 50 to each other.

[0054] When the strut complex 90 is accommodated in the strut accommodating section 85, the accommodation and locking sections 84 of the strut accommodating section 85 engage with all of the short struts 50 included in the strut complex 90, so that the strut complex 90 is stably held in the strut accommodating section 85. In addition, the accommodation and locking sections 53B, 53C of the short strut 50 are disposed in the vertical center of the short strut 50 accommodated in the strut accommodating section 85, so that the strut complex 90 can be accommodated in the strut accommodating section 85 without having to worry about the up-down orientation of the strut complex 90 relative to the strut accommodating section 85.

[0055] In addition, since the same shelf board 11 can be used for both the short support pillars 50 and the long support pillars 30, the manufacturing cost of the shelf board 11 can be reduced compared to when shelf boards 11 are provided exclusively for the short support pillars 50 and exclusively for the long support pillars 30.

[0056] [Other embodiments]

[0057] The shelf 10 in the above embodiment was constructed so that four long pillars 30 or short pillars 50 could be attached between the shelf boards 11, but the number of long pillars 30 and short pillars 50 that can be attached between the shelf boards 11 may be any number other than four.

[0058] In the above embodiment, of the long and short pillars 30 and 50, only the short pillars 50 could be connected to each other, but the fitting portion 51 of the long pillar 30 may be made to have the same structure as the fitting portion 51 of the short pillar 50, so that the long pillars 30 can be connected to each other and the long pillars 30 and the short pillars 50 can be connected to each other.

[0059] In the above embodiment, when the short pillars 50 are connected to each other, the opposing protrusions 60 (more specifically, the pair of protrusions 60A) of both short pillars 50 abut against and frictionally engage the rear surface of the elastic engagement piece 40 of the other short pillar 50, but they may not abut. Also, the short pillars 50 constituting the pillar complex 90 may be held in a connected state by using a structure in which the opposing protrusions 60 of both short pillars 50 and the front rib 37C of the other short pillar 50 abut against each other in a direction perpendicular to the front-rear direction and frictionally engage with each other.

[0060] In the above embodiment, the mating portions 51 of the short supports 50 are held in a connected state by frictional engagement; however, for example, an engagement protrusion may be provided on one of the rear surface of the elastic engagement piece 40 or the rear surface of the opposing protrusion 60, and an engagement recess may be provided on the other, so that when the mating portions 51 are connected, the rear surface of the elastic engagement piece 40 of one mating portion 51 and the rear surface of the opposing protrusion 60 of the other mating portion 51 overlap, and the aforementioned engagement protrusion and engagement recess engage, thereby holding the mating portions 51 in a connected state.

[0061] The opposed protrusions 60 in the above embodiment are in the shape of a square tube, but may be in the shape of a rib, a band, a protrusion, or any other shape.

[0062] In the above embodiment, when the short pillars 50 are connected to each other, the tips of the opposing protrusions 60 of both short pillars 50 abut against the mating plate portion 38B of the opposing short pillar 50, but the configuration may be such that they do not abut.

[0063] In the above embodiment, the number of the housing and locking portions 84 of the pillar housing portion 85 is two, but it may be three or more.

[0064] <Additional Notes> The following describes the feature groups extracted from the above-described embodiments, while indicating their effects, etc., as necessary. Note that, in the following, for ease of understanding, the corresponding configurations in the above-described embodiments are appropriately indicated in parentheses, but these feature groups are not limited to the specific configurations indicated in parentheses.

[0065] [Feature 1] The shelf (10) has a plurality of supports (50) arranged between shelf boards (11) facing each other in the vertical direction, and both ends of the plurality of supports (50) are fitted into a plurality of fitting portions (21) that open onto the upper or lower surface of the shelf boards (11), the shelf (10) comprising: connecting portions (51) provided at the ends of the plurality of supports (50) to enable the supports (50) to be arranged in a straight line and connected to each other; a support column accommodating portion (85) provided on the back surface of the shelf boards (11) to accommodate a support column complex (90) formed by connecting the supports (50) to each other in a lying state; and accommodating and locking portions (53B, 53C, 84) provided on the support column complex (90) and the support column accommodating portion (85) that engage with each other and lock the support column complex (90) within the support column accommodating portion (85).

[0066] [Feature 2] The shelf (10) according to feature 1, wherein both ends of the pillars (50) have projections and recesses in the axial direction of the pillars (50) and have the same planar shape when viewed from the axial direction, and when the pillars (50) are rotated relative to one another and butted together, the connecting portion (51) of one pillar (50) and the connecting portion (51) of the other pillar (50) engage with each other in a projection-and-recess manner.

[0067] [Feature 3] The shelf (10) according to feature 1 or 2, wherein the side of the support (50) includes a front surface and a back surface having different shapes, and the connecting portion (51) is configured to be able to connect the one and the other support (50) to each other with the front surface of one support (50) and the back surface of the other support (50) facing in the same direction.

[0068] [Feature 4] A shelf (10) according to any one of features 1 to 3, wherein the receiving and locking portions (84) of the pillar receiving portion (85) are engaged with the receiving and locking portions (53B, 53C) of all the pillars (50) included in the pillar complex (90).

[0069] [Feature 5] The shelf (10) according to any one of Features 1 to 4, wherein the storage and locking portions (84) of the pillar storage portion (85) each protrude from a pair of opposing surfaces of the pillar storage portion (85) that face the side surfaces of the pillar (50), and the storage and locking portions (53B, 53C) of the pillar (50) are positioned in the vertical center of the pillar (50) when it is stored in the pillar storage portion (85).

[0070] [Feature 6] The shelf (10) according to any one of Features 1 to 4, wherein the pillar accommodating portion (85) is provided with a pair of cross ribs (81) adjacent to the side surfaces of the pillar complex (90), and the accommodation locking portions (84) of the pillar accommodating portion (85) protrude one from each of the opposing surfaces of the pair of cross ribs (81) and are arranged at two locations of the pillar accommodating portion (85) that are spaced apart from each other in the axial direction of the pillar complex (90), so that the pair of cross ribs (81) can be elastically deformed to disengage from the accommodation locking portions (53B, 53C) of the pillar complex (90).

[0071] [Feature 7] A shelf (10) according to any one of features 1 to 6, comprising: an engagement hole (22) formed in the shelf board (11) and penetrating laterally into the fitted portion (21); an elastic engagement piece (40) that protrudes in the axial direction of the support (50) at the end of the support (50) and has an engagement protrusion (41) at its tip that engages with the engagement hole (22) to prevent the end of the support (50) from coming off the fitted portion (21); and an opposing protrusion (60) that is provided at the end of the support (50) and is arranged opposite the elastic engagement piece (40) with a gap therebetween in the elastic deformation direction, wherein when the supports (50) are connected to each other, the opposing protrusion (60) of one support (50) is received between the opposing protrusion (60) of the other support (50) and the elastic engagement piece (40).

[0072] [Feature 8] a plurality of long pillars (30) that are longer than the plurality of pillars (50) and can be fitted at both ends to the fitting portion (21) of the shelf board (11) in place of the plurality of pillars (50); The shelf (10) according to any one of features 1 to 7, wherein the long support (30) is capable of being accommodated in the support support accommodating portion (85) and has an accommodating and engaging portion (33B) that is engageable with the accommodating and engaging portion (53B, 53C, 84) of the support support accommodating portion (85).

[0073] In the shelf of Feature 1, the support columns removed from the shelf can be connected together to form a support column complex, which prevents multiple support columns from scattering and makes it easier than ever to count whether all the support columns are present. This makes it easier to manage multiple support columns and prevents them from being lost. In addition, the support column complex is kept stored in the support column storage section of the shelf, making it easy to store and transport the shelf in a disassembled state.

[0074] In the shelf of feature 2, the posts can be engaged by simply rotating one post relative to the other post and butting them together, making it easy to connect the posts. The angle at which the posts are rotated relative to each other can be any angle, but if it is 180 degrees, that is, as in feature 3, if the front surface of one post and the back surface of the other post are oriented in the same direction and the posts can be connected to each other, the positions at which the posts can be connected to each other can be easily confirmed, making the connection process even easier. In addition, it can be visually confirmed that the post complex is made up of multiple posts connected to each other.

[0075] In the shelf of feature 4, the receiving and locking portion of the support column receiving portion engages with all the supports included in the support column complex, so that the support column complex is stably held in the support column receiving portion.

[0076] In the shelf of feature 5, the accommodation / engagement portion of the support is positioned in the vertical center of the support when accommodated in the support accommodation portion, so that the support complex can be accommodated in the support accommodation portion without having to worry about the up or down orientation of the support complex relative to the support accommodation portion.

[0077] In the shelf of feature 6, when the strut complex is accommodated in the strut accommodating section, the accommodation locking portion of the strut accommodating section protruding from a pair of cross ribs provided in the strut accommodating section engages with the accommodation locking portions provided at two locations of the strut complex that are spaced apart from each other in the axial direction. In other words, the accommodation locking portion of the strut accommodating section engages with the accommodation locking portions of the two struts included in the strut complex. This stabilizes the retention of the strut complex in the strut accommodating section. In addition, the strut complex can be removed from the strut accommodating section by elastically deforming the pair of cross ribs of the strut accommodating section.

[0078] In the shelf of feature 7, the end of the support is provided with an opposing protrusion that faces the elastic engagement piece for holding the shelf in a mounted state on the shelf board. When the supports are connected to each other, the opposing protrusion of one support is received between the opposing protrusion of the other support and the elastic engagement piece. This prevents the elastic engagement piece from being excessively deformed by being pressed from the outside when the supports are connected to each other.

[0079] According to feature 8, since the shelf board can be used for both the support pillars and the long support pillars, the manufacturing costs of the shelf board can be reduced compared to when the shelf board is provided exclusively for the support pillars and exclusively for the long support pillars.

[0080] In addition, although this specification and drawings disclose specific examples of the technology included in the scope of the claims, the technology described in the claims is not limited to these specific examples, but includes various modifications and variations of the specific examples, as well as parts of the specific examples taken alone. [Explanation of symbols]

[0081] 10 Shelves 11 Shelf 21 Engaged part 22 Engagement hole 30 Long Support Pillar 40 Elastic engagement piece 41 Engagement protrusion 50 Short support (support) 51 Fitting part 33B, 53B, 53C, 84 Receiving and locking portion 60 Opposite protrusion 81 Horizontal ribs 85 Pillar storage section 90 strut complex

Claims

1. A shelf in which a plurality of supports are disposed between two shelves facing each other in the vertical direction, and both ends of the plurality of supports are fitted into a plurality of fitting portions that open onto the upper or lower surfaces of the shelf, A connecting portion provided at an end of the plurality of pillars, which enables the pillars to be arranged in a straight line and connected to each other; A support column receiving portion is provided on the back surface of the shelf board and capable of receiving a support column complex formed by connecting the supports in a lying state; A shelf comprising a receiving and locking portion provided on the strut complex and the strut receiving portion, which engage with each other and lock the strut complex within the strut receiving portion.

2. Both ends of the support have projections and recesses in the axial direction of the support, and have the same planar shape as viewed from the axial direction, 2. The shelf according to claim 1, wherein when the posts are rotated relative to one another and butted against one another, the connecting portion of one post and the connecting portion of the other post engage with each other in a projection-projection manner.

3. The side surface of the support includes a front surface and a back surface having different shapes, 3. The shelf according to claim 2, wherein the connecting portion is configured to be able to connect the one and the other support posts with the front surface of one support post and the back surface of the other support post facing in the same direction.

4. The housing and locking portions of the support pole housing portion protrude from a pair of opposing surfaces of the support pole housing portion that face side surfaces of the support pole, The shelf according to claim 3 , wherein the accommodation / engagement portion of the support is disposed at a center portion in the up-down direction of the support when accommodated in the support-support accommodation portion.

5. The strut receiving portion includes a pair of transverse ribs adjacent to sides of the strut composite; The shelf of claim 1, wherein the accommodation locking portions of the support column accommodation portion protrude one from each of the opposing surfaces of the pair of cross ribs and are arranged at two locations of the support column accommodation portion that are spaced apart from each other in the axial direction of the support column complex, and the pair of cross ribs can be elastically deformed to disengage from the accommodation locking portions of the support column complex.

6. An engagement hole formed in the shelf plate and penetrating the fitted portion from a side; an elastic engagement piece that protrudes in the axial direction of the support from an end of the support and has an engagement protrusion at its tip that engages with the engagement hole to prevent the end of the support from slipping out of the fitted portion; an opposing protrusion provided at an end of the support pillar and disposed opposite the elastic engagement piece with a gap therebetween in the elastic deformation direction; 6. A shelf according to claim 1, wherein when the posts are connected to each other, the opposing protrusion of one of the posts is received between the opposing protrusion of the other post and the elastic engagement piece.

7. A plurality of long supports are provided, the both ends of which can be fitted into the fitting portion of the shelf board in place of the plurality of supports, 6. The shelf according to claim 1, wherein the long support pole is receivable in the support pole receiving portion and has a receiving and locking portion engageable with the receiving and locking portion of the support pole receiving portion.

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