shelf

Abstract

To provide a shelf to be easily assembled.SOLUTION: A shelf 100 to be arranged in a corner includes: L-shaped flat plate members 1; a first supporter 2A; a second supporter 2B; a third supporter 2C; a first ladder frame 3A to be attached to the first supporter 2A; a second ladder frame 3B to be attached to the second supporter 2B; a third ladder frame 3C to be attached to the third supporter 2C; and rod-like reinforcement members 4 for reinforcing the flat plate members 1. The reinforcement member 4 includes: a first reinforcement member 40 where hooks HK are attached to both ends; and a second reinforcement member 41 where hooks HK are attached to one end. The hooks HK attached to the one end of the first reinforcement member 40 are hooked to the first ladder frame 3A. The hooks HK attached to the one end of the second reinforcement member 41 are hooked to the second ladder frame 3B. The hooks HK attached to the other end of the first reinforcement member 40 are hooked to the third ladder frame 3C.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a shelf. [Background technology]

[0002] Conventionally, a corner shelf that is installed in an inside corner is known (see Patent Document 1). This corner shelf is configured to include a corner shelf portion that is square in top view and two shelf portions that are rectangular in top view and are connected to each other to form an L-shaped shelf portion when viewed from above. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-158698 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-mentioned shelf board has three connected shelf board parts, which may make assembly complicated. Therefore, it is desirable to provide a shelf board that is easy to assemble. [Means for solving the problem]

[0005] A shelf according to an embodiment of the present disclosure is a shelf to be installed at a corner, and includes an L-shaped flat plate member constituting a shelf board, a first support pillar installed at an outer corner of one end of the flat plate member, a second support pillar installed at an outer corner of the other end of the flat plate member, a third support pillar installed at a middle outer corner of the flat plate member, a first ladder frame attached to the first support pillar, a second ladder frame attached to the second support pillar, a third ladder frame attached to the third support pillar, and a plurality of rod-shaped reinforcing members attached to the underside of the flat plate member to reinforce the flat plate member, the plurality of reinforcing members including a plurality of first reinforcing members having hooks attached to both ends and a plurality of second reinforcing members having hooks attached to one end, the hook attached to one end of the first reinforcing member being hooked to the first ladder frame, the hook attached to one end of the second reinforcing member being hooked to the second ladder frame, and the hook attached to the other end of the first reinforcing member being hooked to the third ladder frame. Effect of the Invention

[0006] The shelves described above are easy to assemble. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of an example shelf according to an embodiment of the present disclosure. [Diagram 2] 2 is a perspective view of the support posts and ladder frame that constitute the shelf shown in FIG. 1. [Diagram 3] 2 is a perspective view of a shelf plate that constitutes the shelf shown in FIG. 1. [Figure 4] FIG. 2 is a perspective view of a portion of the shelf shown in FIG. [Diagram 5] FIG. 2 is a cross-sectional view of a portion of the shelf shown in FIG. [Figure 6] FIG. 4 is a bottom view of the shelf board shown in FIG. 3. [Figure 7] FIG. 13 is a perspective view of another example shelf according to an embodiment of the present disclosure. [Figure 8] 8 is a bottom view of a shelf plate that constitutes the shelf shown in FIG. 7. [Figure 9]FIG. 13 is a perspective view of yet another example shelf according to an embodiment of the present disclosure. [Figure 10] 10 is a bottom view of a shelf plate that constitutes the shelf shown in FIG. 9. [Figure 11] 2 is a perspective view of a shelf board constituting the shelf shown in FIG. 1, showing the state of the shelf board when packed. [Figure 12] 2 is a three-view diagram of a shelf board constituting the shelf shown in FIG. 1 in a packaged state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, a shelf 100 according to an embodiment of the present disclosure will be described with reference to the drawings.

[0009] In FIG. 1, X1 represents one direction of the X axis constituting the three-dimensional orthogonal coordinate system, and X2 represents the other direction of the X axis. Furthermore, Y1 represents one direction of the Y axis constituting the three-dimensional orthogonal coordinate system, and Y2 represents the other direction of the Y axis. Similarly, Z1 represents one direction of the Z axis constituting the three-dimensional orthogonal coordinate system, and Z2 represents the other direction of the Z axis. In FIG. 1, the X1 side of the shelf 100 corresponds to the front side (front side) of the shelf 100, and the X2 side of the shelf 100 corresponds to the rear side (rear side) of the shelf 100. Furthermore, the Y1 side of the shelf 100 corresponds to the left side of the shelf 100, and the Y2 side of the shelf 100 corresponds to the right side of the shelf 100. Furthermore, the Z1 side of the shelf 100 corresponds to the upper side of the shelf 100, and the Z2 side of the shelf 100 corresponds to the lower side of the shelf 100. The same applies to other members in other figures.

[0010] The shelf 100 is configured to be installed in a corner. In the illustrated example, the shelf 100 is a shelf to be installed in an inner corner of a room with a ceiling, and includes a flat plate member 1, a support 2, a ladder frame 3, a reinforcing member 4, and a diagonal brace 5. The flat plate member 1 and the reinforcing member 4 form a shelf plate SH. The shelf 100 is also configured to be easy to assemble, and to allow the height of the shelf plate SH to be easily changed. The shelf 100 may be installed in an outer corner of a room. In the illustrated example, the shelf plate SH includes a first shelf plate SH1 to a fifth shelf plate SH5. The first shelf plate SH1 includes a first flat plate member 1A and a first reinforcing member 4A. Similarly, the second shelf board SH2 includes a second flat plate member 1B and a second reinforcement member 4B, the third shelf board SH3 includes a third flat plate member 1C and a third reinforcement member 4C, the fourth shelf board SH4 includes a fourth flat plate member 1D and a fourth reinforcement member 4D, and the fifth shelf board SH5 includes a fifth flat plate member 1E and a fifth reinforcement member 4E.

[0011] The flat plate member 1 is a member that constitutes a shelf board SH. In the illustrated example, the flat plate member 1 is an L-shaped flat plate member made of wood. However, the flat plate member 1 may be made of other materials such as metal or synthetic resin.

[0012] The support pillars 2 are members that support the shelf board SH. In the illustrated example, the support pillars 2 are L-shaped tension rods made of metal, and include a first support pillar 2A, a second support pillar 2B, and a third support pillar 2C. The support pillars 2 are configured to support the shelf board SH via a ladder frame 3. The support pillars 2 may be made of other materials such as wood or synthetic resin. In the illustrated example, the support pillars 2 are rectangular tubular members, but may be cylindrical members or members having other shapes such as polygonal tubular members. In the illustrated example, the support pillars 2 are extendable jack-type tension rods, but may be non-extendable members. The support pillars 2 may be extendable spring-type tension rods.

[0013] The ladder frame 3 is a member fixed to the support 2. In the illustrated example, the ladder frame 3 is a member formed of metal, and includes a first ladder frame 3A fixed to the first support 2A, a second ladder frame 3B fixed to the second support 2B, and a third ladder frame 3C fixed to the third support 2C. Note that the ladder frame 3 may be formed of other materials such as wood or synthetic resin.

[0014] The reinforcing member 4 is a member that constitutes the shelf board SH together with the flat plate member 1, and is configured to be attached to the lower surface (the surface on the Z2 side) of the flat plate member 1 so as to reinforce the flat plate member 1. In the illustrated example, the reinforcing member 4 is a rectangular tubular member made of metal, but it may be made of other materials such as wood or synthetic resin. The reinforcing member 4 may also be a member having other shapes such as a semi-cylindrical, cylindrical, or polygonal tubular shape. In the illustrated example, the reinforcing member 4 is a hollow member, but it may also be a solid member.

[0015] The braces 5 are members for reinforcing the structure of the shelf 100, and are also called crossbars. In the illustrated example, the braces 5 include a first brace 5A arranged between the first support 2A and the third support 2C, and a second brace 5B arranged between the second support 2B and the third support 2C. Specifically, two of the four ends of the first brace 5A are fixed to the right side (Y2 side) of the first support 2A by fastening parts, and the remaining two of the four ends of the first brace 5A are fixed to the right side (Y2 side) of the third support 2C by fastening parts. In addition, two of the four ends of the second brace 5B are fixed to the rear side (X2 side) of the second support 2B by fastening parts, and the remaining two of the four ends of the second brace 5B are fixed to the rear side (X2 side) of the third support 2C by fastening parts.

[0016] Here, the support 2 to which the ladder frame 3 is fixed will be described with reference to Fig. 2. Fig. 2 is a perspective view of the second support 2B to which the second ladder frame 3B is fixed. Note that the following description with reference to Fig. 2 relates to the second support 2B to which the second ladder frame 3B is fixed, but also applies to the first support 2A to which the first ladder frame 3A is fixed and the third support 2C to which the third ladder frame 3C is fixed. This is because the first support 2A, the second support 2B, and the third support 2C have the same structure (same shape and same size) as each other, and the first ladder frame 3A, the second ladder frame 3B, and the third ladder frame 3C also have the same structure (same shape and same size) as each other.

[0017] Specifically, the second support 2B is a jack-type tension rod installed between the ceiling and floor of the room in which the shelf 100 is installed, and is composed of a ceiling fixing member AM, a vertical rod member VM, a fixing screw CS, a horizontal rod member TM, and a foot member FT.

[0018] More specifically, the ceiling fixing member AM is a member that comes into contact with the ceiling surface of the room in which the shelf 100 is installed, and is configured so that the upper surface, which is substantially rectangular in top view, can be pressed against the ceiling surface. In the illustrated example, the upper surface of the ceiling fixing member AM is configured so that it can move up and down relative to the vertical bar member VM by a jack that uses a screw. The upper surface of the ceiling fixing member AM may be configured so as to be L-shaped or T-shaped in top view.

[0019] The vertical bar member VM is a member disposed so as to extend in the vertical direction between the ceiling surface and the floor surface of the room in which the shelf 100 is installed. In the illustrated example, the vertical bar member VM is a rectangular tubular member, and includes a first vertical bar member VM1, a second vertical bar member VM2, and a third vertical bar member VM3. The first vertical bar member VM1 is a member disposed so as to be extendable and contractible with respect to the second vertical bar member VM2. Specifically, the first vertical bar member VM1 and the second vertical bar member VM2 constitute a telescopic mechanism, and at least a part of the first vertical bar member VM1 is configured to be retracted and accommodated in the second vertical bar member VM2. In addition, the second vertical bar member VM2 and the third vertical bar member VM3 are configured so as to be connectable in the vertical direction. In the illustrated example, the lower end of the second vertical bar member VM2, which has a length shorter than that of the third vertical bar member VM3, is connected to the upper end of the third vertical bar member VM3 via a rectangular tubular joint member (not shown).

[0020] The horizontal bar member TM is a member disposed so as to extend parallel to the floor surface of the room in which the shelf 100 is installed. In the illustrated example, the horizontal bar member TM is a rectangular tubular member, and is welded to the front surface (X1 side surface) of the lower end portion of the vertical bar member VM (third vertical bar member VM3) so as to be perpendicular to the vertical bar member VM (third vertical bar member VM3). The horizontal bar member TM may be fixed to the vertical bar member VM (third vertical bar member VM3) by a fastening part such as a screw.

[0021] The foot member FT is a member that comes into contact with the floor surface of the room in which the shelf 100 is installed, and is configured so that its substantially circular lower surface can be pressed against the floor surface when viewed from above. In the illustrated example, the foot member FT includes a first foot member FT1 that is fixed to the lower surface of the front end portion (the end portion on the X1 side) of the horizontal bar member TM, and a second foot member FT2 that is fixed to the lower surface of the lower end portion (the end portion on the Z2 side) of the vertical bar member VM (the third vertical bar member VM3). The lower surface of the first foot member FT1 is configured so that it can move up and down relative to the horizontal bar member TM by a jack that uses a screw, and the lower surface of the second foot member FT2 is configured so that it can move up and down relative to the vertical bar member VM (the third vertical bar member VM3) by a jack that uses a screw.

[0022] The fixing screw CS is a member for fixing the first vertical rod member VM1 and the second vertical rod member VM2 to each other. In the illustrated example, the fixing screw CS fixes the first vertical rod member VM1 and the second vertical rod member VM2 to each other with the upper surface of the ceiling fixing member AM in contact with the ceiling surface and the lower surface of the foot member FT in contact with the floor surface. After that, the height of the ceiling fixing member AM is adjusted by a jack and pressed against the ceiling surface.

[0023] Next, the connection relationship between the second support 2B and the second ladder frame 3B will be described. In the illustrated example, the second ladder frame 3B is configured to include a second upper ladder frame 3BU, a second lower ladder frame 3BD, and a connecting member CM. The second upper ladder frame 3BU is integrally configured to include a bracket BR, a vertical frame VF, and six horizontal frames HF, and the second lower ladder frame 3BD is integrally configured to include a bracket BR, a vertical frame VF, and ten horizontal frames HF.

[0024] In the illustrated example, the second upper ladder frame 3BU has a vertical length corresponding to the vertical length of the second vertical bar member VM2 in the Z-axis direction and a horizontal length corresponding to the horizontal length of the horizontal bar member TM in the X-axis direction, and is fixed to the second vertical bar member VM2 via a bracket BR. Similarly, the second lower ladder frame 3BD has a vertical length corresponding to the vertical length of the third vertical bar member VM3, which is longer than the vertical length of the second vertical bar member VM2, and a horizontal length corresponding to the horizontal length of the horizontal bar member TM in the X-axis direction, and is fixed to the third vertical bar member VM3 via a bracket BR.

[0025] The brackets BR of the second upper ladder frame 3BU are fixed to the front surface (X1 side surface) of the second vertical bar member VM2 by welding, and the brackets BR of the second lower ladder frame 3BD are fixed to the front surface (X1 side surface) of the third vertical bar member VM3 by fastening parts FM. Specifically, the brackets BR of the second lower ladder frame 3BD are fixed to the front surface (X1 side surface) of the third vertical bar member VM3 by three fastening parts FM (a first bolt FM1, a second bolt FM2, and a third bolt FM3). The horizontal frame HF at the bottom of the second lower ladder frame 3BD is fixed to the upper surface (Z1 side surface) of the horizontal bar member TM by a fourth bolt FM4, which is one of the fastening parts FM. Since at least a part of the first vertical bar member VM1 is housed inside the second vertical bar member VM2, the brackets BR of the second upper ladder frame 3BU are fixed to the front surface of the second vertical bar member VM2 by welding, but may be fixed to the front surface of the second vertical bar member VM2 by fastening parts. Conversely, the brackets BR of the second lower ladder frame 3BD may be fixed to the front surface of the third vertical bar member VM3 by welding.

[0026] The connecting members CM are members for connecting the second upper ladder frame 3BU and the second lower ladder frame 3BD. In the illustrated example, the connecting members CM are bolts and nuts, and are arranged so as to connect a part of the lowermost horizontal frame HF of the second upper ladder frame 3BU to the upper end portion (the portion bent backward) of the vertical frame VF of the second lower ladder frame 3BD.

[0027] Next, an example of the configuration of a shelf board SH will be described with reference to Fig. 3. Fig. 3 is a perspective view of a first shelf board SH1. Specifically, the upper view of Fig. 3 (the view above the block arrow) is an assembled perspective view of the first shelf board SH1, and the lower view of Fig. 3 (the view below the block arrow) is an exploded perspective view of the first shelf board SH1. Note that the following description with reference to Fig. 3 relates to the first shelf board SH1, but is similarly applicable to the second shelf board SH2 to the fifth shelf board SH5. This is because the first shelf board SH1 to the fifth shelf board SH5 have the same structure (same shape and same size) as one another.

[0028] As described above, the shelf board SH (first shelf board SH1) is configured to include a flat plate member 1 (first flat plate member 1A) and a reinforcing member 4 (first reinforcing member 4A). In the illustrated example, the shelf board SH is an L-shaped shelf board, and has a base part BP that is substantially square in top view, and an extension part EP that is substantially rectangular in top view extending from the base part BP. The extension part EP includes a first extension part EP1 that is substantially rectangular in top view extending from the base part BP in a first direction (X-axis direction), and a second extension part EP2 that is substantially rectangular in top view extending from the base part BP in a second direction (Y-axis direction) perpendicular to the first direction (X-axis direction). Note that in FIG. 3, a dot pattern is applied to the base part BP for clarity.

[0029] Specifically, the L-shaped flat plate member 1 includes a first flat plate member 10 having a substantially right-angled trapezoid shape composed of a part of the base portion BP (first portion BP1) and a first extending portion EP1, and a second flat plate member 11 having a substantially right-angled trapezoid shape composed of the remaining part of the base portion BP (second portion BP2) and a second extending portion EP2. That is, the flat plate member 1 is configured by combining two members (the first flat plate member 10 and the second flat plate member 11). In the illustrated example, the first flat plate member 10 and the second flat plate member 11 have the same structure (same shape and same size). However, the first flat plate member 10 and the second flat plate member 11 may have different structures. For example, the first flat plate member 10 and the second flat plate member 11 may be configured such that the length of the first extending portion EP1 in the X-axis direction and the length of the second extending portion EP2 in the Y-axis direction are different from each other.

[0030] The reinforcing member 4 is a rod-shaped member attached to the lower surface (surface on the Z2 side) of the flat plate member 1 to reinforce the flat plate member 1. In the illustrated example, the reinforcing member 4 includes two first reinforcing members 40 that reinforce the base portion BP and the first extension portion EP1, and two second reinforcing members 41 that reinforce the second extension portion EP2. The two first reinforcing members 40 are a first inner reinforcing member 40I and a first outer reinforcing member 40E, and the two second reinforcing members 41 are a second inner reinforcing member 41I and a second outer reinforcing member 41E. "Inner side" means the side where the recessed corner portion RC of the shelf board SH is located, and "outer side" means the side where the protruding corner portion PC of the shelf board SH is located. The first inner reinforcing member 40I and the first outer reinforcing member 40E have the same structure (same shape and same size) as each other, and the second inner reinforcing member 41I and the second outer reinforcing member 41E also have the same structure (same shape and same size) as each other. The reinforcing member 4 is fixed to the flat plate member 1 by fastening parts BT.

[0031] In the illustrated example, the fastening parts BT include a first bolt BT1 to a tenth bolt BT10, which are bolts that are inserted into through holes extending in the Z-axis direction formed in the reinforcing member 4 and screwed into female threaded holes formed in the lower surface of the flat plate member 1. Specifically, the first inner reinforcing member 40I is fixed to the flat plate member 1 by the first bolt BT1 to the third bolt BT3, and the first outer reinforcing member 40E is fixed to the flat plate member 1 by the fourth bolt BT4 to the sixth bolt BT6. The second inner reinforcing member 41I is fixed to the flat plate member 1 by the seventh bolt BT7 and the eighth bolt BT8, and the second outer reinforcing member 41E is fixed to the flat plate member 1 by the ninth bolt BT9 and the tenth bolt BT10.

[0032] The fastening parts BT include an eleventh bolt BT11 and a twelfth bolt BT12, which are bolts inserted into a through hole extending in the Y-axis direction formed in the first inner reinforcement member 40I and screwed into a female threaded hole formed in one end of the second reinforcement member 41. Specifically, one end (end on the Y2 side) of the second inner reinforcement member 41I is fixed to a side surface (surface on the Y1 side) of the first inner reinforcement member 40I by the eleventh bolt BT11, and one end (end on the Y2 side) of the second outer reinforcement member 41E is fixed to a side surface (surface on the Y1 side) of the first inner reinforcement member 40I by the twelfth bolt BT12.

[0033] Also, hooks HK are fixed to the ends of the reinforcing members 4. In the illustrated example, the hooks HK are members configured to be hooked onto the horizontal frames HF of the ladder frame 3, and include a first hook HK1 to a sixth hook HK6. Also, each of the hooks HK is fixed to the reinforcing members 4 by welding. The first hook HK1 is fixed to the front end (end on the X1 side) of the first inner reinforcing member 40I, the second hook HK2 is fixed to the front end (end on the X1 side) of the first outer reinforcing member 40E, the third hook HK3 is fixed to the left end (end on the Y1 side) of the second inner reinforcing member 41I, the fourth hook HK4 is fixed to the left end (end on the Y1 side) of the second outer reinforcing member 41E, the fifth hook HK5 is fixed to the rear end (end on the X2 side) of the first inner reinforcing member 40I, and the sixth hook HK6 is fixed to the rear end (end on the X2 side) of the first outer reinforcing member 40E. Each of the hooks HK may be fixed to the reinforcing member 4 by a fastening part such as a screw.

[0034] Next, the connection relationship between the shelf board SH and the ladder frame 3 will be described with reference to Fig. 4. Fig. 4 is a perspective view of a portion of the shelf 100. Specifically, the upper view of Fig. 4 is a perspective view of a portion including the shelf board SH (first shelf board SH1), and corresponds to an enlarged view of the area R1 surrounded by the dashed line in Fig. 1. The lower view of Fig. 4 is a view in which the first flat plate member 1A has been removed from the upper view of Fig. 4.

[0035] In the illustrated example, the first hook HK1 and the second hook HK2 are hooked to the second horizontal frame HF from the top of the first ladder frame 3A, the third hook HK3 and the fourth hook HK4 are hooked to the second horizontal frame HF from the top of the second ladder frame 3B, and the fifth hook HK5 and the sixth hook HK6 are hooked to the second horizontal frame HF from the top of the third ladder frame 3C. That is, the shelf board SH is supported by three columns 2 (the first column 2A, the second column 2B, and the third column 2C) in a state where two (one pair) of hooks HK are hooked to one ladder frame 3 (horizontal frame HF), in other words, in a state where six (three pairs) of hooks HK are hooked to three ladder frames 3 (horizontal frames HF).

[0036] Here, referring to FIG. 5, the shelf board SH hooked on the ladder frame 3 (horizontal frame HF) will be described. FIG. 5 is a cross-sectional view of the hook HK fixed to the reinforcing member 4 that reinforces the flat plate member 1. Specifically, FIG. 5 corresponds to a cross-sectional view of the first ladder frame 3A (horizontal frame HF), the first flat plate member 1A, the first inner reinforcing member 40I, and the first hook HK1 viewed from the Y1 side on a virtual plane parallel to the XZ plane including the dashed line L1 in the upper view of FIG. 4. Note that the following description with reference to FIG. 5 relates to the first hook HK1, which is one of the six hooks HK fixed to the first shelf board SH1, but also applies to each of the other five hooks HK (the second hook HK2 to the sixth hook HK6). Note that the following description with reference to FIG. 5 relates to the first shelf board SH1, but also applies to each of the second shelf board SH2 to the fifth shelf board SH5.

[0037] In the illustrated example, the first hook HK1 is configured to have a substantially inverted U-shape when viewed from the Y1 side. The same is true for the second hook HK2 to the sixth hook HK6. Therefore, a worker assembling the shelf 100 can attach the shelf board SH to the ladder frame 3 by simply lowering the shelf board SH downward with the hook HK positioned directly above the horizontal frame HF of the ladder frame 3. Conversely, a worker can remove the shelf board SH from the ladder frame 3 by simply lifting the shelf board SH upward with the hook HK hooked on the horizontal frame HF of the ladder frame 3.

[0038] The first shelf board SH1 is arranged so that, when the first hook HK1 is hooked on the second horizontal frame HF of the first ladder frame 3A, a gap GP1 extending in the X-axis direction is formed between the first flat plate member 1A and the second horizontal frame HF of the first ladder frame 3A. The same applies to the second hook HK2. With this arrangement, the first shelf board SH1 is attached to the first ladder frame 3A without protruding from the horizontal frame HF of the first ladder frame 3A to the X1 side. The same applies to the X2 side and the Y1 side. That is, the first shelf board SH1 is arranged so that, when the third hook HK3 and the fourth hook HK4 are hooked on the second horizontal frame HF of the second ladder frame 3B, a gap extending in the Y-axis direction is formed between the first flat plate member 1A and the second horizontal frame HF of the second ladder frame 3B, as shown in the upper diagram of FIG. 4. With this arrangement, the first shelf board SH1 is attached to the second ladder frame 3B without protruding from the horizontal frame HF of the second ladder frame 3B on the Y1 side. Similarly, the first shelf board SH1 is arranged so that a gap extending in the X-axis direction is formed between the first flat plate member 1A and the second horizontal frame HF of the third ladder frame 3C when the fifth hook HK5 and the sixth hook HK6 are hooked on the second horizontal frame HF of the third ladder frame 3C, as shown in the upper diagram of Fig. 4. With this arrangement, the first shelf board SH1 is attached to the third ladder frame 3C without protruding from the horizontal frame HF of the third ladder frame 3C on the X2 side.

[0039] 5, the first hook HK1 is configured such that its front edge (edge ​​on the X1 side) is located inside, i.e., rearward (X2 side) than the front edge (edge ​​on the X1 side) of the first support 2A when hooked onto the horizontal frame HF of the first ladder frame 3A. Therefore, even if the shelf 100 is installed so that the front side surface (face on the X1 side) of the first support 2A contacts the wall surface, the front edge (edge ​​on the X1 side) of the first hook HK1 will not contact the wall surface. The same applies to the second hook HK2 to the sixth hook HK6.

[0040] Furthermore, the first shelf board SH1 is arranged so that the top surface of the flat plate member 1 is lower than the top end of the horizontal frame HF by a height HT1. With this arrangement, the horizontal frame HF can prevent an object placed on the top surface of the flat plate member 1 from falling over the horizontal frame HF to the floor. However, the first shelf board SH1 may also be arranged so that the top surface of the flat plate member 1 is higher than the top end of the horizontal frame HF. This arrangement has the effect of making it easier to move an object horizontally from one flat plate member 1 to the other flat plate member 1 when flat plate members 1 are arranged on both sides of the horizontal frame HF (the right and left sides in the example shown in FIG. 5).

[0041] In the illustrated example, the first shelf SH1 is hooked via a hook HK to the second-highest horizontal frame HF on each of the three ladder frames 3, but it may also be hooked to the topmost first horizontal frame HF, or to a horizontal frame HF in a lower position, such as the third horizontal frame HF from the top.

[0042] Next, an example of the positional relationship between each of the flat plate member 1 and the reinforcing member 4 and the fastening part BT will be described with reference to Fig. 6. Fig. 6 is a bottom view of a shelf board SH (first shelf board SH1). In Fig. 6, for ease of understanding, a dot pattern is applied to the extension portion EP (first extension portion EP1 and second extension portion EP2). Also, in Fig. 6, for ease of understanding of the positional relationship between the support 2 and the shelf board SH, the positions of the first support column 2A, the second support column 2B, and the third support column 2C are indicated by dashed lines.

[0043] The L-shaped flat plate member 1 is configured such that the size in the X-axis direction is a length LG1 and the size in the Y-axis direction is a length LG2. The first extension portion EP1 is configured such that the size in the Y-axis direction is a width WD1, and the second extension portion EP2 is configured such that the size in the X-axis direction is a width WD2. In the illustrated example, the length LG1 and the length LG2 are the same, but they may be different from each other. In the illustrated example, the width WD1 and the width WD2 are the same, but they may be different from each other. The dashed line L2 is a virtual line segment that bisects the length LG1 in the X-axis direction, the dashed line L3 is a virtual line segment that bisects the length LG2 in the Y-axis direction, and the dashed line L4 is a part of a virtual line segment that bisects the second flat plate member 11 (second extension portion EP2) having the width WD2 in the X-axis direction. Further, the dashed dotted line 41IX is a virtual axis line of the second inner reinforcing member 41I, and the dashed dotted line 41EX is a virtual axis line of the second outer reinforcing member 41E.

[0044] On this premise, the second bolt BT2 and the fifth bolt BT5 are disposed on the lower surface of the first extension portion EP1 so as to be located on the broken line L2 in a bottom view. That is, the second bolt BT2 and the fifth bolt BT5 are disposed on the lower surface of the first extension portion EP1 so as to be fixed on the bisector in the X-axis direction of the first reinforcing member 40 in a bottom view. In other words, the second bolt BT2 is disposed on the lower surface of the first extension portion EP1 so that the distance DS1 between the front end of the flat plate member 1 (the end on the X1 side of the first extension portion EP1) and the second bolt BT2 is equal to the distance DS2 between the rear end of the flat plate member 1 (the end on the X2 side of the second part BP2 of the base BP) and the second bolt BT2. The same applies to the fifth bolt BT5.

[0045] Moreover, the third bolt BT3 is disposed on the lower surface of the second portion BP2 of the base BP so as to be located on the broken line L4 in a bottom view. That is, the third bolt BT3 is disposed on the lower surface of the second portion BP2 of the base BP so as to be fixed on the bisector in the X-axis direction of the second flat plate member 11 in a bottom view. In other words, the third bolt BT3 is disposed on the lower surface of the second portion BP2 of the base BP so that a distance DS3 between the front end of the second flat plate member 11 (the end on the X1 side of the second extension portion EP2) and the third bolt BT3 is equal to a distance DS4 between the rear end of the second flat plate member 11 (the end on the X2 side of the second extension portion EP2) and the third bolt BT3.

[0046] Further, the first bolt BT1 is disposed on the lower surface of the first extension portion EP1 such that a distance DS5 between the dashed line L2 and the first bolt BT1 is equal to a distance DS6 between the dashed line L2 and the third bolt BT3.

[0047] The sixth bolt BT6 is disposed on the underside of the second portion BP2 of the base BP so as to be located on the dashed line 41EX which is the axis of the second outer reinforcement member 41E in a bottom view. That is, the sixth bolt BT6 is disposed on the underside of the second portion BP2 of the base BP so as to be aligned in a straight line (on the dashed line 41EX) with each of the ninth bolt BT9 and the tenth bolt BT10.

[0048] Further, the fourth bolt BT4 is disposed on the lower surface of the first extension portion EP1 such that a distance DS7 between the dashed line L2 and the fourth bolt BT4 is equal to a distance DS8 between the dashed line L2 and the sixth bolt BT6.

[0049] The eighth bolt BT8 and the tenth bolt BT10 are disposed on the lower surface of the second extension portion EP2 so as to be located on the broken line L3 in a bottom view. That is, the eighth bolt BT8 and the tenth bolt BT10 are disposed on the lower surface of the second extension portion EP2 so as to be fixed on a line that bisects the length LG2 in a bottom view. In other words, the eighth bolt BT8 is disposed on the lower surface of the second extension portion EP2 so that the distance DS9 between the left end of the flat plate member 1 (the end on the Y1 side of the second extension portion EP2) and the eighth bolt BT8 is equal to the distance DS10 between the right end of the flat plate member 1 (the end on the Y2 side of the first part BP1 of the base BP) and the eighth bolt BT8. The same applies to the tenth bolt BT10.

[0050] The seventh bolt BT7 is disposed on the underside of the second extension portion EP2 such that the distance DS11 between the left end (end on the Y1 side) of the second inner reinforcement member 41I and the seventh bolt BT7 is equal to the distance DS12 between the right end (end on the Y2 side) of the second inner reinforcement member 41I and the eighth bolt BT8. Similarly, the ninth bolt BT9 is disposed on the underside of the second extension portion EP2 such that the distance DS11 between the left end (end on the Y1 side) of the second outer reinforcement member 41E and the ninth bolt BT9 is equal to the distance DS12 between the right end (end on the Y2 side) of the second outer reinforcement member 41E and the tenth bolt BT10.

[0051] The eleventh bolt BT11 is disposed so that its axis lies on the dashed line 41IX which is the axis of the second inner reinforcement member 41I in a bottom view. Similarly, the twelfth bolt BT12 is disposed so that its axis lies on the dashed line 41EX which is the axis of the second outer reinforcement member 41E in a bottom view.

[0052] By arranging the fastening parts BT as described above, the reinforcing member 4 can reinforce the flat plate member 1 in a well-balanced manner. In the illustrated example, the reinforcing member 4 is fixed to the lower surface of the flat plate member 1 by 12 fastening parts BT, and can reinforce the flat plate member 1 in a well-balanced manner. Specifically, the reinforcing member 4 is fixed to the lower surface of the first extension portion EP1 by four fastening parts BT (a first bolt BT1, a second bolt BT2, a fourth bolt BT4, and a fifth bolt BT5), and can reinforce the first extension portion EP1 in a well-balanced manner. In addition, the reinforcing member 4 is fixed to the lower surface of the second portion BP2 of the base BP by two fastening parts BT (a third bolt BT3 and a sixth bolt BT6), and can reinforce the base BP in a well-balanced manner. In addition, the reinforcing member 4 is fixed to the lower surface of the second extension portion EP2 by four fastening parts BT (a seventh bolt BT7, an eighth bolt BT8, a ninth bolt BT9, and a tenth bolt BT10), and can reinforce the second extension portion EP2 in a well-balanced manner.

[0053] The first inner reinforcement member 40I is fixed to the underside of the first extension portion EP1 of the first flat plate member 10 by a first bolt BT1 and a second bolt BT2, and is fixed to the underside of the second portion BP2 of the base BP of the second flat plate member 11 by a third bolt BT3. Similarly, the first outer reinforcement member 40E is fixed to the underside of the first extension portion EP1 of the first flat plate member 10 by a fourth bolt BT4 and a fifth bolt BT5, and is fixed to the underside of the second portion BP2 of the base BP of the second flat plate member 11 by a sixth bolt BT6.

[0054] The first inner reinforcement member 40I and the first outer reinforcement member 40E are arranged such that the distance DS13 between the inner edge (Y1 side edge) of the first extension portion EP1 and the inner edge (Y1 side edge) of the first inner reinforcement member 40I and the distance DS14 between the outer edge (Y2 side edge) of the first extension portion EP1 and the outer edge (Y2 side edge) of the first outer reinforcement member 40E differ by at least the width WD3 of the reinforcement member 4. In the illustrated example, the widths of the first inner reinforcement member 40I, the first outer reinforcement member 40E, the second inner reinforcement member 41I, and the second outer reinforcement member 41E are all the width WD3. The first inner reinforcement member 40I and the first outer reinforcement member 40E are arranged such that the distance DS13 is smaller than the distance DS14, and the difference between them is slightly larger than the width WD3.

[0055] The second inner reinforcement member 41I is fixed to the underside of the second extension portion EP2 of the second flat plate member 11 by a seventh bolt BT7 and an eighth bolt BT8. Similarly, the second outer reinforcement member 41E is fixed to the underside of the second extension portion EP2 of the second flat plate member 11 by a ninth bolt BT9 and a tenth bolt BT10.

[0056] The second inner reinforcement member 41I and the second outer reinforcement member 41E are arranged such that a distance DS15 between the inner edge (edge ​​on the X1 side) of the second extension portion EP2 and the inner edge (edge ​​on the X1 side) of the second inner reinforcement member 41I differs from a distance DS16 between the outer edge (edge ​​on the X2 side) of the second extension portion EP2 and the outer edge (edge ​​on the X2 side) of the second outer reinforcement member 41E by at least the width WD3 of the reinforcement member 4. In the illustrated example, the second inner reinforcement member 41I and the second outer reinforcement member 41E are arranged such that the distance DS15 is greater than the distance DS16, and the difference between them is slightly greater than the width WD3.

[0057] The above-mentioned arrangement of the reinforcing members 4 has the effect of making it possible to easily connect a plurality of shelves 100 to one another in a manner in which one support column 2 and one ladder frame 3 are shared.

[0058] Here, an example of a method for connecting a plurality of shelves (shelf 100 and shelf 100S) will be described with reference to Figs. 7 and 8. Fig. 7 is a perspective view of two shelves (shelf 100 and shelf 100S). Specifically, the upper view of Fig. 7 shows the state before the two shelves (shelf 100 and shelf 100S) are connected, and the lower view of Fig. 7 shows the state after the two shelves (shelf 100 and shelf 100S) are connected. Note that in Fig. 7, for ease of understanding, the reference characters of the members constituting the shelf 100S are suffixed with the letter "S", but each member constituting the shelf 100S has the same structure (same shape and same size) as the corresponding member constituting the shelf 100. For example, the shelf board SHS in the shelf 100S has the same structure (same shape and same size) as the corresponding shelf board SH in the shelf 100.

[0059] Specifically, shelf 100S corresponds to shelf 100 without second support column 2B and second ladder frame 3B, and shelf 100 and shelf 100S are connected in a manner that they share the first support column 2A and first ladder frame 3A of shelf 100. In other words, the first support column 2A and first ladder frame 3A of shelf 100 function as the second support column 2BS and second ladder frame 3BS of shelf 100S.

[0060] FIG. 8 is a bottom view of two connected shelves (shelf SH (first shelf SH1) and shelf SHS (first shelf SH1S)). Specifically, the top view of FIG. 8 is a bottom view of the connected first shelf SH1 and first shelf SH1S. The bottom view of FIG. 8 is an enlarged view of a portion of the top view of FIG. 8, and corresponds to an enlarged view of the area R2 surrounded by a dashed line in the top view of FIG. 8. Note that in FIG. 8, as in FIG. 7, for ease of understanding, the reference symbols of the components constituting shelf 100S are suffixed with the letter "S", but each component constituting shelf 100S has the same structure (same shape and same size) as the corresponding components constituting shelf 100.

[0061] 8, the first inner reinforcing member 40I in the shelf board SH and the second inner reinforcing member 41IS in the shelf board SHS are arranged so that the distance DS13 between the inner edge (edge ​​on the Y1 side) of the first flat plate member 10 in the shelf board SH and the inner edge (edge ​​on the Y1 side) of the first inner reinforcing member 40I is different from the distance DS15 between the inner edge (edge ​​on the Y1 side) of the second flat plate member 11S in the shelf board SHS and the inner edge (edge ​​on the Y1 side) of the second inner reinforcing member 41IS. Specifically, the first inner reinforcing member 40I and the second inner reinforcing member 41IS are arranged so that the difference DF1 between the distance DS13 and the distance DS15 is larger than the width WD3 of the reinforcing member 4 (first inner reinforcing member 40I).

[0062] The first outer reinforcement member 40E in the shelf board SH and the second outer reinforcement member 41ES in the shelf board SHS are arranged such that a distance DS14 between the outer edge (edge ​​on the Y2 side) of the first flat plate member 10 in the shelf board SH and the outer edge (edge ​​on the Y2 side) of the first outer reinforcement member 40E is different from a distance DS16 between the outer edge (edge ​​on the Y2 side) of the second flat plate member 11S in the shelf board SHS and the outer edge (edge ​​on the Y2 side) of the second outer reinforcement member 41ES. Specifically, the first outer reinforcement member 40E and the second outer reinforcement member 41ES are arranged such that a difference DF2 between the distance DS14 and the distance DS16 is larger than a width WD3 of the reinforcement member 4 (second outer reinforcement member 41ES).

[0063] With this arrangement, the front end (X1 end) of the shelf board SH and the rear end (X2 end) of the shelf board SHS are hooked to the horizontal frame HF of the ladder frame 3 via the hook HK without causing the first inner reinforcing member 40I and the second inner reinforcing member 41IS to interfere with each other, and without causing the first outer reinforcing member 40E and the second outer reinforcing member 41ES to interfere with each other. In the example shown in the lower diagram of FIG. 8, the front end (X1 end) of the first shelf board SH1 and the rear end (X2 end) of the first shelf board SH1S are hooked to the second horizontal frame HF from the top of the first ladder frame 3A. In the lower diagram of FIG. 8, the second horizontal frame HF from the top of the first ladder frame 3A is shown by a broken line for ease of understanding.

[0064] Next, with reference to Fig. 9 and Fig. 10, yet another example of a method for connecting a plurality of shelves (shelf 100, shelf 200, and shelf 300) will be described. Fig. 9 is a perspective view of three shelves (shelf 100, shelf 200, and shelf 300). Specifically, the upper view of Fig. 9 is a perspective view of shelf 100 before shelves 200 and 300 are connected, the center view of Fig. 9 is a perspective view of shelves 100 and 200 after shelf 200 is connected, and the lower view of Fig. 9 is a perspective view of shelves 100, 200, and 300 after shelves 200 and 300 are connected. In FIG. 9, for ease of understanding, the reference symbols of the components constituting shelf 200 are given the suffix "L" and the reference symbols of the components constituting shelf 300 are given the suffix "R", but each component constituting shelf 200 and shelf 300 has the same structure (same shape and same size) as the corresponding components constituting shelf 100.

[0065] Specifically, the shelf 200 includes a first support 2AL, a second support 2BL, a first ladder frame 3AL, a second ladder frame 3BL, and five shelf boards SHL, and corresponds to a combination of the first support 2A, the second support 2B, the first ladder frame 3A, and the second ladder frame 3B of the shelf 100 with the approximately rectangular shelf boards SHL. The shelves 100 and 200 are connected in a manner in which the second support 2B and the second ladder frame 3B of the shelf 100 are shared. In other words, the second support 2B and the second ladder frame 3B of the shelf 100 function as the first support 2AL and the first ladder frame 3AL of the shelf 200.

[0066] The shelf 300 includes a first support 2AR, a second support 2BR, a first ladder frame 3AR, a second ladder frame 3BR, and five shelf boards SHR, and corresponds to a combination of the first support 2A, the second support 2B, the first ladder frame 3A, and the second ladder frame 3B of the shelf 100 with the substantially rectangular shelf boards SHR. The shelf 100 and the shelf 300 are connected in a manner in which the first support 2A and the first ladder frame 3A of the shelf 100 are shared. In other words, the first support 2A and the first ladder frame 3A of the shelf 100 function as the second support 2BR and the second ladder frame 3BR of the shelf 300.

[0067] FIG. 10 is a bottom view of three connected shelves (shelf SH (first shelf SH1), shelf SHL (first shelf SH1L), and shelf SHR (first shelf SH1R)). Specifically, the main views (views other than the balloon views) of FIG. 10 are bottom views of the connected first shelf SH1, first shelf SH1L, and first shelf SH1R. The balloon view enclosed by a dashed line in the upper right of FIG. 10 is an enlarged view of a portion of the main view of FIG. 10, and corresponds to an enlarged view of the area R3 enclosed by the dashed line in the main view of FIG. 10. In addition, another balloon view in the lower right of FIG. 10 is an enlarged view of another portion of the main view of FIG. 10, and corresponds to an enlarged view of the area R4 enclosed by the dashed line in the main view of FIG. 10. In addition, in Figure 10, as in Figure 9, for ease of understanding, the reference symbols of each component constituting shelf 200 are given the suffix "L" and the reference symbols of each component constituting shelf 300 are given the suffix "R", but each component constituting shelf 200 and shelf 300 has the same structure (same shape and same size) as the corresponding components constituting shelf 100.

[0068] 10, the second inner reinforcement member 41I in the shelf board SH and the first inner reinforcement member 40IL in the shelf board SHL are arranged so that the distance DS15 between the inner edge (edge ​​on the X1 side) of the second flat plate member 11 in the shelf board SH and the inner edge (edge ​​on the X1 side) of the second inner reinforcement member 41I is different from the distance DS13L between the inner edge (edge ​​on the X1 side) of the flat plate member 1L in the shelf board SHL and the inner edge (edge ​​on the X1 side) of the first inner reinforcement member 40IL. Specifically, the second inner reinforcement member 41I and the first inner reinforcement member 40IL are arranged so that the difference DF3 between the distance DS15 and the distance DS13L is larger than the width WD3 of the reinforcement member 4 (first inner reinforcement member 40IL).

[0069] The second outer reinforcing member 41E on the shelf board SH and the first outer reinforcing member 40EL on the shelf board SHL are arranged such that a distance DS16 between the outer edge (edge ​​on the X2 side) of the second flat plate member 11 on the shelf board SH and the outer edge (edge ​​on the X2 side) of the second outer reinforcing member 41E is different from a distance DS14L between the outer edge (edge ​​on the X2 side) of the flat plate member 1L on the shelf board SHL and the outer edge (edge ​​on the X2 side) of the first outer reinforcing member 40EL. Specifically, the second outer reinforcing member 41E and the first outer reinforcing member 40EL are arranged such that a difference DF4 between the distance DS14L and the distance DS16 is greater than a width WD3 of the reinforcing member 4 (second outer reinforcing member 41E).

[0070] The first inner reinforcing member 40I in the shelf board SH and the first inner reinforcing member 40IR in the shelf board SHR are arranged such that a distance DS13 between the inner edge (edge ​​on the Y1 side) of the first flat plate member 10 in the shelf board SH and the inner edge (edge ​​on the Y1 side) of the first inner reinforcing member 40IR is different from a distance DS14R between the inner edge (edge ​​on the Y1 side) of the flat plate member 1R in the shelf board SHR and the inner edge (edge ​​on the Y1 side) of the first inner reinforcing member 40IR. Specifically, the first inner reinforcing member 40I and the first inner reinforcing member 40IR are arranged such that a difference DF5 between the distance DS14R and the distance DS13 is larger than a width WD3 of the reinforcing member 4 (first inner reinforcing member 40I).

[0071] The first outer reinforcing member 40E in the shelf board SH and the first outer reinforcing member 40ER in the shelf board SHR are arranged such that a distance DS14 between the outer edge (edge ​​on the Y2 side) of the first flat plate member 10 in the shelf board SH and the outer edge (edge ​​on the Y2 side) of the first outer reinforcing member 40ER is different from a distance DS13R between the outer edge (edge ​​on the Y2 side) of the flat plate member 1R in the shelf board SHR and the outer edge (edge ​​on the Y2 side) of the first outer reinforcing member 40ER. Specifically, the first outer reinforcing member 40E and the first outer reinforcing member 40ER are arranged such that a difference DF6 between the distance DS14 and the distance DS13R is greater than a width WD3 of the reinforcing member 4 (first outer reinforcing member 40ER).

[0072] With this arrangement, the left end (end on the Y1 side) of the shelf board SH and the right end (end on the Y2 side) of the shelf board SHL are hooked to the horizontal frame HF of the ladder frame 3 via the hook HK without causing the second outer reinforcing member 41E and the first outer reinforcing member 40EL to interfere with each other, and without causing the second inner reinforcing member 41I and the first inner reinforcing member 40IL to interfere with each other. In the example shown in FIG. 10, the left end (end on the Y1 side) of the first shelf board SH1 and the right end (end on the Y2 side) of the first shelf board SH1L are hooked to the second horizontal frame HF from the top of the second ladder frame 3B. In FIG. 10, the second horizontal frame HF from the top of the second ladder frame 3B is shown by a broken line for ease of understanding.

[0073] In addition, the front end (X1 end) of the shelf board SH and the rear end (X2 end) of the shelf board SHR are hooked to the horizontal frame HF of the ladder frame 3 via the hook HK without interfering with the first outer reinforcement member 40E and the first outer reinforcement member 40ER, and without interfering with the first inner reinforcement member 40I and the first inner reinforcement member 40IR. In the example shown in FIG. 10, the front end (X1 end) of the first shelf board SH1 and the rear end (X2 end) of the first shelf board SH1R are hooked to the second horizontal frame HF from the top of the first ladder frame 3A. In FIG. 10, the second horizontal frame HF from the top of the first ladder frame 3A is shown by a broken line for ease of understanding.

[0074] In the example shown in Figures 9 and 10, one shelf SHL is connected to the left side (Y1 side) of the L-shaped shelf SH, and one shelf SHR is connected to the front side (X1 side) of the L-shaped shelf SH, but two or more shelves SHL may be connected to the left side (Y1 side) of the L-shaped shelf SH, and two or more shelves SHR may be connected to the front side (X1 side) of the L-shaped shelf SH.

[0075] Next, the shelf board SH when packed will be described with reference to Fig. 11 and Fig. 12. Fig. 11 is a perspective view of the shelf board SH when packed, and Fig. 12 is a three-side view (top view, front view, and right side view) of the shelf board SH when packed.

[0076] At the time of packaging, the shelf board SH is disassembled into a first flat plate member 10, a second flat plate member 11, a first outer reinforcing member 40E, a first inner reinforcing member 40I, a second outer reinforcing member 41E, a second inner reinforcing member 41I, and a fastening part BT, as shown in Figures 11 and 12. Note that the first hook HK1 and the fifth hook HK5 are welded to the first inner reinforcing member 40I, the second hook HK2 and the sixth hook HK6 are welded to the first outer reinforcing member 40E, the third hook HK3 is welded to the second inner reinforcing member 41I, and the fourth hook HK4 is welded to the second outer reinforcing member 41E.

[0077] Therefore, all the members constituting the shelf board SH at the time of packaging are gathered together to fit into a space of length LG10, width WD10, and height HT10, as shown in Fig. 12. The size of this space is desirably a size that can be delivered by courier, and for example, the total of length LG10, width WD10, and height HT10 is 120 cm or less. In the illustrated example, the length LG10 is about 80 cm, the width WD10 is about 30 cm, and the height HT10 is about 3 cm.

[0078] With this configuration, the shelf board SH can be smaller in size at the time of delivery compared to when the L-shaped flat plate members are delivered as an integrated unit, resulting in reduced delivery costs.

[0079] In the illustrated example, the first flat plate member 10 and the second flat plate member 11 have the same structure (same shape and same size) as described above. Specifically, as shown in Fig. 12, the first flat plate member 10 is configured such that the first extension portion EP1 (see Fig. 6) having a substantially rectangular shape in top view and the first portion BP1 of the base portion BP having a substantially triangular shape in top view are integrated to form a substantially right-angled trapezoid in top view. Similarly, the second flat plate member 11 is configured such that the second extension portion EP2 having a substantially rectangular shape in top view and the second portion BP2 of the base portion BP having a substantially triangular shape in top view are integrated to form a substantially right-angled trapezoid in top view.

[0080] Each of the first flat plate member 10 and the second flat plate member 11 is configured so that its overall length in the Y-axis direction is shorter than the length of the first inner reinforcement member 40I, shorter than the length of the first outer reinforcement member 40E, longer than the length of the second inner reinforcement member 41I, and longer than the length of the second outer reinforcement member 41E.

[0081] With this configuration, the shelf board SH has the advantage of being able to increase its load-bearing capacity (strength) while preventing it from becoming excessively large during delivery, compared to when the base and extension are formed as separate components.

[0082] As described above, the shelf 100 according to an embodiment of the present disclosure is a shelf installed in a corner, and as shown in FIG. 1, includes an L-shaped flat plate member 1 constituting a shelf board SH, a first support 2A installed adjacent to the outer corner EC (first outer corner EC1) at one end (end on the X1 side) of the flat plate member 1, a second support 2B installed adjacent to the outer corner EC (second outer corner EC2) at the other end (end on the Y1 side) of the flat plate member 1, a third support 2C installed adjacent to the middle outer corner EC (third outer corner EC3) of the flat plate member 1, a first ladder frame 3A attached to the first support 2A, a second ladder frame 3B attached to the second support 2B, a third ladder frame 3C attached to the third support 2C, and a plurality of rod-shaped reinforcing members 4 attached to the underside (surface on the Z2 side) of the flat plate member 1 to reinforce the flat plate member 1. As shown in the lower diagram of Fig. 3, the multiple reinforcing members 4 include two first reinforcing members 40 with hooks HK attached to both ends and two second reinforcing members 41 with hooks HK attached to one end (end on the Y1 side). As shown in the lower diagram of Fig. 4, the hooks HK (first hook HK1 and second hook HK2) attached to one end (end on the X1 side) of the first reinforcing members 40 are hooked to the horizontal frame HF of the first ladder frame 3A, the hooks HK (third hook HK3 and fourth hook HK4) attached to one end (end on the Y1 side) of the second reinforcing members 41 are hooked to the horizontal frame HF of the second ladder frame 3B, and the hooks HK (fifth hook HK5 and sixth hook HK6) attached to the other end (end on the X2 side) of the first reinforcing members 40 are hooked to the horizontal frame HF of the third ladder frame 3C.

[0083] This configuration has the effect of simplifying the assembly of the shelf 100. This is because the worker assembling the shelf 100 can attach the shelf board SH to the ladder frame 3 by simply lowering the shelf board SH downward with the hook HK positioned directly above the horizontal frame HF of the ladder frame 3. Furthermore, with this configuration, the worker can remove the shelf board SH from the ladder frame 3 by simply lifting the shelf board SH upward with the hook HK hooked on the horizontal frame HF of the ladder frame 3.

[0084] In addition, in this configuration, as shown in the upper diagram of Fig. 4, there is no need to install the ladder frame 3 on the right side (Y2 side) of the shelf board SH. Therefore, the shelf board SH can be placed with the right side surfaces (Y2 side surfaces) of the first support column 2A and the third support column 2C in contact with the wall surface on the right side (Y2 side).

[0085] 3, the L-shaped flat plate member 1 may have a base BP, a first extension portion EP1 extending from the base BP in a first direction (X-axis direction), and a second extension portion EP2 extending from the base BP in a second direction (Y-axis direction) perpendicular to the first direction (X-axis direction). In this case, the two first reinforcing members 40 may extend along the first extension portion EP1, as shown in FIG. 6, and may be disposed such that a distance DS13 between one of the two first reinforcing members 40 on the inner side (Y1 side) (first inner reinforcing member 40I) and an inner edge (edge ​​on the Y1 side) of the first extension portion EP1 is different from a distance DS14 between one of the two first reinforcing members 40 on the outer side (Y2 side) (first outer reinforcing member 40E) and an outer edge (edge ​​on the Y2 side) of the first extension portion EP1.

[0086] This arrangement has the effect of preventing interference between the hook HK fixed to the first reinforcing member 40 of one shelf board SH and the hook HK fixed to the first reinforcing member 40 of the other shelf board SH when two shelf boards SH are connected. Therefore, this arrangement has the effect of enabling the hook HK fixed to the first reinforcing member 40 of one shelf board SH and the hook HK fixed to the first reinforcing member 40 of the other shelf board SH to be hooked and fixed to one horizontal frame HF of one ladder frame 3. In this case, four hooks HK are hooked to the one horizontal frame HF.

[0087] Also, as shown in FIG. 6, the two first reinforcing members 40 may be configured to extend in the X-axis direction along the first extension portion EP1, and the two second reinforcing members 41 may be configured to extend in the Y-axis direction along the second extension portion EP2. In this case, the two first reinforcing members 40 and the two second reinforcing members 41 may be arranged such that the distance DS13 between one of the inner sides (Y1 side) of the two first reinforcing members 40 (first inner reinforcing member 40I) and the inner edge (Y1 side edge) of the first extension portion EP1 is different from the distance DS15 between one of the inner sides (X1 side) of the two second reinforcing members 41 (second inner reinforcing member 41I) and the inner edge (X1 side edge) of the second extension portion EP2, and that the distance DS14 between one of the outer sides (Y2 side) of the two first reinforcing members 40 (first outer reinforcing member 40E) and the outer edge (Y2 side edge) of the first extension portion EP1 is different from the distance DS16 between one of the outer sides (X2 side) of the two second reinforcing members 41 (second outer reinforcing member 41E) and the outer edge (X2 side edge) of the second extension portion EP2.

[0088] This arrangement has the effect of preventing interference between the hook HK fixed to the first reinforcing member 40 of the shelf board SH and the hook HK fixed to the second reinforcing member 41 of the shelf board SHS when connecting two shelves (shelf board SH and shelf board SHS) as shown in Fig. 8. Therefore, this arrangement has the effect of enabling the hook HK fixed to the first reinforcing member 40 of the shelf board SH and the hook HK fixed to the second reinforcing member 41 of the shelf board SHS to be hooked and fixed to one horizontal frame HF of one ladder frame 3. In this case, four hooks HK are hooked to the one horizontal frame HF.

[0089] As shown in FIG. 1, at least one of the first support column 2A, the second support column 2B, and the third support column 2C may be configured to function as a tension rod.

[0090] This configuration has the effect of preventing the shelf 100 from tipping over when a heavy object is placed on the shelf board SH. In other words, this configuration has the effect of increasing the maximum weight of an object that can be placed on the shelf board SH, compared to a case in which the first support pillar 2A, the second support pillar 2B, and the third support pillar 2C are not all tension rods.

[0091] Also, as shown in Fig. X, at least one of the first support column 2A, the second support column 2B, and the third support column 2C may be an L-shaped support column including a vertical bar member VM and a horizontal bar member TM. In this case, the horizontal bar member TM may be disposed so as to extend toward the inside of the shelf board SH.

[0092] This configuration has the effect of realizing the shelf 100 without providing a support pillar on the inside of the shelf board SH, i.e., without providing a support pillar adjacent to the vertical bar member VM of the ladder frame 3, and further without providing a support pillar adjacent to the recessed corner portion RC of the shelf board SH. Therefore, this configuration has the effect of realizing the shelf 100 that makes it easier to put things in and take them out from the inside of the shelf board SH, compared to a configuration in which a support pillar is provided on the inside of the shelf board.

[0093] 6, the shelf 100 may be configured such that the two first reinforcing members 40 are longer than the flat plate member 1, and the two second reinforcing members 41 are shorter than the flat plate member 1. The two first reinforcing members 40 and the two second reinforcing members 41 are arranged perpendicular to each other, and the first inner reinforcing member 40I, which is one of the inner members of the two first reinforcing members 40, and the two second reinforcing members 41 (the second inner reinforcing member 41I and the second outer reinforcing member 41E) may be connected to each other by fastening parts BT (the eleventh bolt BT11 and the twelfth bolt BT12). This configuration provides the effect of realizing appropriate reinforcement of the flat plate member 1 with less material.

[0094] Furthermore, as shown in Figures 9 and 10, the shelf 100 may have a rectangular additional flat plate member (flat plate member 1L or flat plate member 1R), a fourth support (second support 2BL or first support 2AR) installed at an outer corner of one end of the additional flat plate member (flat plate member 1L or flat plate member 1R), a fourth ladder frame (second ladder frame 3BL or first ladder frame 3AR) attached to the fourth support (second support 2BL or first support 2AR), and a plurality of rod-shaped additional reinforcing members (reinforcing members 4L or reinforcing members 4R) attached to the underside of the additional flat plate member (flat plate member 1L or flat plate member 1R) to reinforce the additional flat plate member (flat plate member 1L or flat plate member 1R). In this case, hooks HK may be attached to both ends of the multiple additional reinforcing members (reinforcing members 4L or 4R), and the hook HK attached to one end of the additional reinforcing members (reinforcing members 4L or 4R) may be hooked onto the first ladder frame 3A or the second ladder frame 3B. That is, the shelf 100 may be configured to include at least one of the shelf 200 and the shelf 300, as shown in Fig. 9. This configuration provides the effect of allowing the shelf 100 to be expanded to any width.

[0095] 3, the shelf board SH according to the embodiment of the present disclosure is an L-shaped shelf board having a base BP, a first extension part EP1 extending from the base BP in a first direction (X-axis direction), and a second extension part EP2 extending from the base BP in a second direction (Y-axis direction) perpendicular to the first direction (X-axis direction), and includes a flat plate member 1 including a first flat plate member 10 constituting a part (first part BP1) of the base BP and the first extension part EP1, and a second flat plate member 11 constituting the remaining part (second part BP2) of the base BP and the second extension part EP2, and a plurality of rod-shaped reinforcing members 4 attached to the lower surface (surface on the Z2 side) of the flat plate member 1 to reinforce the flat plate member 1. The plurality of reinforcing members 4 include a plurality of first reinforcing members 40 that reinforce the base BP and the first extension part EP1, and a plurality of second reinforcing members 41 that reinforce the second extension part EP2.

[0096] This configuration has the effect of reducing the size of the shelf SH during transportation compared to when the L-shaped shelf is integrally formed. This is because the flat plate member 1 is configured to be separable into two members while preventing a decrease in the load-bearing capacity (strength) of the upper surface of the flat plate member 1 when assembled.

[0097] Furthermore, each of the multiple first reinforcing members 40 may be fastened to the first flat plate member 10 by at least one fastening part BT, and also fastened to the second flat plate member 11 by at least one fastening part BT. In the illustrated example, as shown in Fig. 6, the first inner reinforcing member 40I is fastened to the first flat plate member 10 by a first bolt BT1 and a second bolt BT2, and is fastened to the second flat plate member 11 by a third bolt BT3. Furthermore, the first outer reinforcing member 40E is fastened to the first flat plate member 10 by a fourth bolt BT4 and a fifth bolt BT5, and is fastened to the second flat plate member 11 by a sixth bolt BT6.

[0098] With this configuration, each of the first reinforcing members 40 can reinforce the first flat plate member 10 while simultaneously reinforcing a portion of the second flat plate member 11, and further has the effect of firmly connecting the first flat plate member 10 and the second flat plate member 11.

[0099] Also, as shown in FIG. 6, at least one of the multiple first reinforcing members 40 (first inner reinforcing member 40I) may be fastened to the center of the second flat plate member 11 in the first direction (X-axis direction) by a fastening part BT (third bolt BT3).

[0100] This configuration provides the effect that the first inner reinforcing member 40I can simultaneously reinforce the central portion of the second flat plate member 11 while reinforcing the first flat plate member 10. That is, the first inner reinforcing member 40I extending in a direction (X-axis direction) perpendicular to the extension direction (Y-axis direction) of the second extending portion EP2 is fastened to the central portion in the X-axis direction of the second flat plate member 11 by the fastening part BT (third bolt BT3), thereby providing the effect that the second flat plate member 11 can be reinforced in a well-balanced manner compared to a case where the first inner reinforcing member 40I is fastened to a position closer to the edge of the second flat plate member 11 by the fastening part.

[0101] Moreover, each of the first flat plate member 10 and the second flat plate member 11 may be a substantially right-angled trapezoidal member including a substantially right-angled triangular portion and a substantially rectangular portion in a top view. The base portion BP may be composed of the substantially right-angled triangular portion of the first flat plate member 10 and the substantially right-angled triangular portion of the second flat plate member 11. In the example shown in FIG. 6, the substantially right-angled triangular portion of the first flat plate member 10 is the first portion BP1 of the base portion BP, and the substantially rectangular portion of the first flat plate member 10 is the first extension portion EP1. The substantially right-angled triangular portion of the second flat plate member 11 is the second portion BP2 of the base portion BP, and the substantially rectangular portion of the second flat plate member 11 is the second extension portion EP2.

[0102] With this configuration, the shelf board SH has the effect of preventing the flat plate member 1 from being separated into three or more parts, while suppressing an increase in size when packed.

[0103] Furthermore, each of the multiple first reinforcing members 40 may be fastened to the flat plate member 1 by three fastening parts BT. In the illustrated example, a first inner reinforcing member 40I, which is one of the multiple first reinforcing members 40, is fastened to the flat plate member 1 by three fastening parts BT (first bolt BT1 to third bolt BT3), and a first outer reinforcing member 40E, which is another of the multiple first reinforcing members 40, is fastened to the flat plate member 1 by three fastening parts BT (fourth bolt BT4 to sixth bolt BT6). In this case, a second fastening part (second bolt BT2 or fifth bolt BT5) located in the center of the three fastening parts BT may be disposed in the center of the flat plate member 1 in the first direction (X-axis direction). The three fastening parts BT may be arranged so that the distance (distance DS5 or distance DS7) between the first fastening part (first bolt BT1 or fourth bolt BT4) and the second fastening part (second bolt BT2 or fifth bolt BT5) is the same as the distance (distance DS6 or distance DS8) between the second fastening part (second bolt BT2 or fifth bolt BT5) and the third fastening part (third bolt BT3 or sixth bolt BT6).

[0104] This arrangement provides the effect of enabling the first reinforcing member 40 to reinforce the flat plate member 1 in a more balanced manner compared to a case in which the fastening parts BT (first bolt BT1 to sixth bolt BT6) are each arranged so that the distance DS5 and the distance DS6 are different, or so that the distance DS7 and the distance DS8 are different.

[0105] Furthermore, each of the fastening parts BT (first bolt BT1 to sixth bolt BT6) may be disposed, as shown in FIG. 6, such that the distance DS5 is smaller than the distance DS7, and the distance DS6 is smaller than the distance DS8.

[0106] This arrangement provides the advantage that the first reinforcing member 40 can reinforce the L-shaped flat plate member 1 in a more balanced manner than when the fastening parts BT (first bolt BT1 to sixth bolt BT6) are arranged so that the distance DS5 is the same as the distance DS7 and the distance DS6 is the same as the distance DS8. This is because the third bolt BT3 that fastens the first inner reinforcing member 40I is fastened to the central portion of the second flat plate member 11 in the X-axis direction.

[0107] Also, each of the multiple second reinforcing members 41 may be fastened to the flat plate member 1 by two fastening parts BT. In the illustrated example, the second inner reinforcing member 41I, which is one of the multiple second reinforcing members 41, is fastened to the flat plate member 1 by two fastening parts BT (the seventh bolt BT7 and the eighth bolt BT8), and the second outer reinforcing member 41E, which is another one of the multiple second reinforcing members 41, is fastened to the flat plate member 1 by two fastening parts BT (the ninth bolt BT9 and the tenth bolt BT10). That is, the two fastening parts BT may include a fourth fastening part (the eighth bolt BT8 or the tenth bolt BT10) and a fifth fastening part (the seventh bolt BT7 or the ninth bolt BT9). In this case, the fourth fastening part (the eighth bolt BT8 or the tenth bolt BT10) may be disposed in the center of the flat plate member 1 in the second direction (the Y-axis direction). The fourth fastening part (8th bolt BT8) and the fifth fastening part (7th bolt BT7) may be arranged so that the distance (distance DS12) between the fourth fastening part (8th bolt BT8) and one end (end on the Y2 side) of the second reinforcing member 41 (second inner reinforcing member 41I) is the same as the distance (distance DS11) between the fifth fastening part (7th bolt BT7) and the other end (end on the Y1 side) of the second reinforcing member (second inner reinforcing member 41I). Similarly, the fourth fastening part (tenth bolt BT10) and the fifth fastening part (ninth bolt BT9) may be arranged so that the distance (distance DS12) between the fourth fastening part (tenth bolt BT10) and one end (end on the Y2 side) of the second reinforcing member 41 (second outer reinforcing member 41E) is the same as the distance (distance DS11) between the fifth fastening part (ninth bolt BT9) and the other end (end on the Y1 side) of the second reinforcing member (second outer reinforcing member 41E).

[0108] This arrangement provides the advantage that the second reinforcing member 41 can reinforce the flat plate member 1 in a more balanced manner than when the fastening parts BT (the seventh bolt BT7 to the tenth bolt BT10) are arranged so that the distance DS11 and the distance DS12 are different.

[0109] The preferred embodiments of the present invention have been described above in detail. However, the present invention is not limited to the above-described embodiments. Various modifications and substitutions may be applied to the above-described embodiments without departing from the scope of the present invention. Furthermore, each of the features described with reference to the above-described embodiments may be appropriately combined as long as there is no technical contradiction. [Explanation of symbols]

[0110] 1···Flat plate member 1A···First stage flat plate member 1B···Second stage flat plate member 1C···Third stage flat plate member 1D···Fourth stage flat plate member 1E···Fifth stage flat plate member 2···Support 2A···First support 2B···Second support 2C···Third support 3···Ladder frame 3A···First ladder frame 3B···Second ladder frame 3BD···Second lower ladder frame 3BU···Second upper ladder frame 3C···Third ladder frame 4···Reinforcing member 4A···First stage reinforcing member 4B···Second stage reinforcing member 4C···Third stage reinforcing member 4D···Fourth stage reinforcing member 4E···Fifth stage reinforcing member 5···Brace 40···First reinforcing member 40E···First outer reinforcing member 40I···First inner reinforcing member 41···Second reinforcing member 41E···Second outer reinforcing member 41I···Second inner reinforcing member 10···First flat plate member 11···Second flat plate member 100, 200, 300···Shelf AM···Ceiling fixing member BP···Base BP1···First part BP2···Second part BR···Bracket BT···Fastening part BT1···First bolt BT2···Second bolt BT3···Third bolt BT4···Fourth bolt BT5···Fifth bolt BT6···Sixth bolt BT7···Seventh bolt BT8···Eighth bolt BT9···Ninth bolt BT10···Tenth bolt BT11...Eleventh bolt BT12...Twelfth bolt CM...Connecting part CS...Fixing screw EC...Outer corner EC1...First outer corner EC2...Second outer corner EC3...Third outer corner EP...Extension EP1...First extension EP2...Second extension FM...Fastening part FM1...First bolt FM2...Second bolt FM3...Third bolt FM4...Fourth bolt FT...Foot part FT1...First foot part FT2...Second foot part HF...Side frame HK...Hook HK1...First hook HK2...Second hook HK3...Third hook HK4...Fourth hook HK5...Fifth hook HK6...Sixth hook PC···Outside corner RC···Inside corner SH···Shelf SH1···First shelf SH2···Second shelf SH3···Third shelf SH4···Fourth shelf SH5···Fifth shelfTM Horizontal bar member VF Vertical frame VM Vertical bar member VM1 First vertical bar member VM2 Second vertical bar member VM3 Third vertical bar member

Claims

1. A shelf installed in a corner, An L-shaped flat plate member constituting a shelf board; A first support pillar is installed at an outer corner portion of one end of the flat plate member; A second support pillar is installed at an outer corner of the other end of the flat plate member; A third support pillar is installed at an outer corner of the middle of the flat plate member; A first ladder frame attached to the first support; A second ladder frame attached to the second support; a third ladder frame attached to the third support; a plurality of rod-shaped reinforcing members attached to a lower surface of the flat plate member to reinforce the flat plate member; The plurality of reinforcing members include a plurality of first reinforcing members each having a hook attached to both ends thereof, and a plurality of second reinforcing members each having a hook attached to one end thereof, The hook attached to one end of the first reinforcing member is hooked onto the first ladder frame, The hook attached to one end of the second reinforcing member is hooked onto the second ladder frame, The hook attached to the other end of the first reinforcing member is hooked onto a third ladder frame. A shelf characterized by:

2. The L-shaped flat plate member has a base, a first extension portion extending from the base in a first direction, and a second extension portion extending from the base in a second direction perpendicular to the first direction, The two first reinforcing members extend along the first extension portion, and are arranged such that a distance between an inner one of the two first reinforcing members and an inner edge of the first extension portion is different from a distance between an outer one of the two first reinforcing members and an outer edge of the first extension portion. The shelf of claim 1.

3. The L-shaped flat plate member has a base, a first extension portion extending from the base in a first direction, and a second extension portion extending from the base in a second direction perpendicular to the first direction, The two first reinforcing members extend along the first extension portion, The two second reinforcing members extend along the second extension portion, the two first reinforcing members and the two second reinforcing members are arranged such that a distance between an inner one of the two first reinforcing members and an inner edge of the first extension portion is different from a distance between an inner one of the two second reinforcing members and an inner edge of the second extension portion, and a distance between an outer one of the two first reinforcing members and an outer edge of the first extension portion is different from a distance between an outer one of the two second reinforcing members and an outer edge of the second extension portion. The shelf of claim 1.

4. At least one of the first support, the second support, and the third support is configured to function as a tension rod. The shelf of claim 1.

5. At least one of the first support pillar, the second support pillar, and the third support pillar is an L-shaped support pillar including a vertical bar member and a horizontal bar member. The shelf of claim 1.

6. The first reinforcing members are longer than the flat plate member, The second reinforcing members are shorter than the flat plate member, The first reinforcing members and the second reinforcing members are arranged perpendicular to each other, An inner one of the plurality of first reinforcing members and each of the plurality of second reinforcing members are connected to each other by a fastening part. The shelf of claim 1.

7. An additional rectangular flat plate member; A fourth support pillar is installed at an outer corner of one end of the additional flat plate member; a fourth ladder frame attached to the fourth support; a plurality of rod-shaped additional reinforcing members attached to a lower surface of the additional flat plate member to reinforce the additional flat plate member; The plurality of additional reinforcing members each have a hook attached to each end, The hook attached to one end of the additional reinforcing member is hooked onto the first ladder frame or the second ladder frame. The shelf of claim 1.

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