Assembly shelf

Abstract

To provide an assembly shelf in which the installation height of a beam member can be adjusted with a finer interval and in which the installation height of the beam member can be extremely easily changed.SOLUTION: An assembly shelf includes: post members which are provided with a first side face having a plurality of recesses that are installed at a prescribed interval in an axial direction and which are provided with a second side face adjacent to the first side face; and beam members which are provided with a first part that has a projection and that is opposed to the first side face and which are provided with a second part provided adjacent to the first part and oppositely facing the second side face. Each of the plurality of recesses extends in a normal direction of the second side face. The beam members is movable between the first position which is made to oppose the second part for the second side face in a state separated from the post members and the second position which is moved in the normal direction of the second side face from the first position and which is fastened to the post members by inserting the projection into any of the plurality of recesses.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an assembly shelf that can be disassembled and assembled. [Background technology]

[0002] For example, a prefabricated shelf is known (see, for example, Patent Document 1). This prefabricated shelf includes a pillar member and a girder member attached to the pillar member. In this prefabricated shelf, a pair of protrusions is provided on the pillar member. The protrusions have a pair of protrusions and a pair of inclined surfaces formed on the inner surfaces of the pair of protrusions. The pair of inclined surfaces can position the girder member relative to the pillar member in both the longitudinal direction of the shelf and the lateral direction intersecting with the longitudinal direction of the shelf. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] European Patent Application Publication No. 0686817A2 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0004] In this assembly shelf, the pair of protrusions are required to have a certain degree of strength since they serve both the function of positioning the girder member in the longitudinal direction and the function of positioning the girder member in the lateral direction. Therefore, the pair of protrusions must be formed to a certain degree of size. On the other hand, if the pair of protrusions are formed to a certain degree of size, there is a problem that the degree of freedom of the installation height of the girder member is reduced, and the installation height of the girder member can only be adjusted at a relatively large pitch. In addition, if the pair of protrusions are formed to a certain degree of size, there is a problem that the girder member and the pair of protrusions collide when changing the installation height of the girder member, making it difficult to change the installation height of the girder member.

[0005] SUMMARY OF THE PRESENT EMBEDDED SHELVES ARE AN IMPROVED SYSTEM FOR USE IN AN INSTALLATION SYSTEM SUCH AS AN INSTALLATION SYSTEM. SUMMARY OF THE PRESENT PURPOSE An object of the present invention is to provide an assembly shelf in which the installation height of beam members can be adjusted in finer increments and the installation height of beam members can be changed extremely easily. [Means for solving the problem]

[0006] The above problems are solved by the present invention. That is, the assembly shelf of the present invention (1) is as follows: A support member having a first side surface having a plurality of recesses spaced at regular intervals in an axial direction thereof and a second side surface adjacent to the first side surface; a beam member having a first portion having a protrusion and facing the first side surface, and a second portion provided adjacent to the first portion and facing the second side surface; Equipped with Each of the plurality of recesses extends in a normal direction of the second side surface, The beam member is movable between a first position in which the second portion faces the second side surface while separated from the support member, and a second position in which the beam member is moved from the first position in a normal direction to the second side surface and fixed to the support member by inserting the convex portion into one of the multiple concave portions.

[0007] The assembly shelf of the present invention (2) is the assembly shelf according to (1), the first side surface has a plurality of second recesses, each of the second recesses extending downward from a respective innermost portion of the plurality of recesses; The convex portion is capable of dropping into the second concave portion at the second position, and accordingly, the beam member is capable of moving from the second position to a third position that is lower than the second position.

[0008] The assembly shelf of the present invention (3) is the assembly shelf according to (2), The support member includes a rail protruding from the second side surface and extending in the axial direction, The second portion has a saddle-shaped saddle portion that extends in the axial direction and can straddle the rail, and the saddle portion can slide along the rail when the beam member moves between the second position and the third position.

[0009] The assembly shelf of the present invention (4) is the assembly shelf according to (3), the first side surface has a protrusion at a position surrounded by the recess and the second recess, When the beam member is in the third position, the convex portion that is recessed into the second concave portion engages with the projection.

[0010] The assembly shelf of the present invention (5) is the assembly shelf according to (3) or (4), The rail has a top surface, a first guide surface provided adjacent to the top surface on the first side surface, and a second guide surface provided adjacent to the top surface and facing the first guide surface, the second guide surface being slanted so as to move away from the first side surface as it extends downward.

[0011] The assembly shelf of the present invention (6) is the assembly shelf according to (5), The saddle portion has a guided surface that is guided by the second guide surface, and the guided surface is inclined so as to approach the rail as it goes upward.

[0012] The assembly shelf of the present invention (7) is the assembly shelf according to (5) or (6), The beam member has a beam body extending in a normal direction of the first side surface, The normal direction of the first side surface coincides with the longitudinal direction.

[0013] The assembly shelf of the present invention (8) is the assembly shelf according to any one of (1) to (7), The support member has an additional first side surface provided at a position opposite to the first side surface and adjacent to the second side surface. Effect of the Invention

[0014] According to the present invention, it is possible to provide an assembly shelf in which the installation height of the beam members can be adjusted in finer increments and the installation height of the beam members can be changed extremely easily. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing an assembly shelf according to an embodiment. [Diagram 2] 2 is a perspective view showing a state in which a shelf board is removed from the assembly shelf shown in FIG. 1. [Diagram 3] 3 is a perspective view showing a state in which a beam member is suspended in mid-air from the assembly shelf shown in FIG. 2. FIG. [Figure 4] 4 is an exploded perspective view showing the frame of the assembly shelf shown in FIG. 3 in an exploded state. FIG. [Diagram 5] 3 is an enlarged perspective view of a portion of the assembly shelf shown in FIG. 2. [Figure 6] 3 is a perspective view showing the assembly shelf shown in FIG. 2 in a state where the beam members have been rotated 180 degrees to allow the first section and the second section to be suspended in the air at an easily viewable position. FIG. [Figure 7] 3 is a perspective view showing the assembly shelf shown in FIG. 2 in a first position where a second portion of the beam member faces a second side surface of the support member. FIG. [Figure 8] 8 is a perspective view showing a state in which the beam member is moved in the normal direction of the second side surface from the assembly shelf shown in FIG. 7 to a second position in which the protrusion is inserted into any of the multiple recesses and fixed to the support member. [Figure 9] 8 is a perspective view showing a state in which the beam members have been moved downward to a third position by their own weight from the assembly shelf shown in FIG. 7. FIG. [Figure 10] 3 is a cross-sectional view showing the assembly shelf shown in FIG. 2 in a state where a second portion of the beam member faces a second side surface of the support member at a first position. FIG. [Figure 11] 11 is a cross-sectional view showing a state in which the beam member is moved in the normal direction of the second side surface from the assembly shelf shown in FIG. 10 to a second position in which the protrusion is inserted into one of the multiple recesses and fixed to the support member. [Figure 12]12 is a perspective view showing a state in which the beam members have been moved downward to a third position by their own weight from the assembly shelf shown in FIG. 11 and the convex portion has fallen into the second concave portion. FIG. [Figure 13] 11 is a cross-sectional view showing a state in which the beam member is moved in the normal direction of the second side surface from the assembly shelf shown in FIG. 10 to a second position in which the protrusion is inserted into one of the multiple recesses and fixed to the support member. [Figure 14] FIG. 14 is a cross-sectional view showing a state in which the beam member has been moved downward to a third position by its own weight from the assembly shelf shown in FIG. 13, the guided surface of the beam member being guided by the second guide surface of the rail, and the beam member being pressed against the first side surface by the effect of the wedge. [Figure 15] 3 is a perspective view showing a state in which a shelf body is in the middle of being installed in the assembly shelf shown in FIG. 2. FIG. [Figure 16] FIG. 11 is a perspective view showing an assembly shelf according to a modified example of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] An embodiment of the assembly shelf of the present invention will be described below with reference to the drawings. The assembly shelf of the present invention is composed of an extremely small number of parts and is easy to assemble and disassemble. In addition, the installation height of the beam members can be adjusted at finer intervals, and the shape of the projections and recesses is simple and easy to clean. In the following description, the longitudinal direction of the assembly shelf is L, the short side direction intersecting (orthogonal to) the longitudinal direction L of the assembly shelf is S, and the height direction of the assembly shelf (axial direction of the support members) is A. [First embodiment]

[0017] As shown in Figures 1 to 3, the assembly shelf 11 comprises a total of four support members 12 provided at four corners, a plurality of rod-shaped connectors 13 provided along the short direction S and connecting the support members 12 to each other, a plurality of beam members 14 extending laterally and spanning between the support members 12 along the longitudinal direction L, legs 15 provided at the lower ends of the connectors 13, and a shelf board 16 spanning between a pair of beam members 14.

[0018] 1 and 15, the shelf board 16 has a pair of hook portions 17 at both ends in the short side direction S for hooking onto the pair of beam members 14. The shelf board 16 has a plurality of through holes 18. The through holes 18 are formed, for example, elongated in the short side direction S.

[0019] The connectors 13 are provided on the upper end and the lower end of the support member 12. The connectors 13 are formed to have the same shape. The connectors 13 extend in the lateral direction (horizontal direction).

[0020] As shown in Fig. 3 and Fig. 4, each of the connectors 13 is formed in a prismatic shape having a vertically long rectangular cross section, and has a pair of insertion holes 21 at both ends. The support members 12 can be easily connected to each other by inserting the prismatic insertion parts 22 provided at both ends of the support members 12 into the insertion holes 21. The connectors 13 are integrally molded from a resin material, but may have a core material therein that is made of, for example, a hollow steel square pipe. In that case, the connectors 13 can be manufactured by, for example, insert molding.

[0021] Legs 15 are attached to connectors 13 located at the lower ends of support members 12. As shown in Fig. 4, legs 15 are configured with a combination of bolts 15A and nuts 15B, and the length of projection from connector 13 can be appropriately adjusted. Naturally, legs 15 can be configured with casters to make assembly shelf 11 movable.

[0022] 1 to 4, the four support members 12 are configured in the same manner. Each of the support members 12 extends in the vertical direction. Each support member 12 has an insertion portion 22 at both ends in the axial direction A (upper and lower).

[0023] 4 to 6, the support member 12 is formed in a rectangular column shape. The support member 12 is integrally formed from a resin material, but may have a core material therein, such as a hollow steel square pipe. In that case, the support member 12 can be manufactured by, for example, insert molding.

[0024] In FIG. 6, in order to facilitate understanding of the structure of the assembly shelf 11, the beam members 14 are shown in a position rotated 180 degrees from the actual position and suspended in mid-air.

[0025] The support member 12 has a pair of first side surfaces 23 facing each other, a second side surface 24 adjacent to the first side surfaces 23, and a pair of rails 25 protruding from the second side surfaces 24. A normal line 31 direction (a linear direction perpendicular to the first side surfaces 23) to the first side surfaces is aligned along the longitudinal direction L of the assembly shelf 11. A normal line 32 direction (a linear direction perpendicular to the second side surfaces 24) to the second side surfaces is aligned along the short direction S of the assembly shelf 11. The second side surfaces 24 are perpendicular to both of the pair of first side surfaces 23. The support member 12 is bilaterally symmetrical.

[0026] Each of the pair of first side surfaces 23 has a plurality of recesses 33 provided at regular intervals in the axial direction A, a plurality of second recesses 34 extending downward from the innermost portions of the recesses 33, and a substantially rectangular protrusion 35 provided at a position surrounded by the recesses 33 and the second recesses 34. The recesses 33 extend in the lateral direction, i.e., in the direction of a normal 32 to the second side surface (a direction perpendicular to the second side surface 24).

[0027] Each of the second recesses 34 is continuous with the inner part of the recess 33 (the end of the recess 33 opposite to the second side surface 24 side). The second recesses 34 extend in the vertical direction (axial direction A of the support member 12). When the first side surface 23 is viewed from the front, the recesses 33 and the second recesses 34 form an "L" shape. The lower end of the second recess 34 is continuous with the inner part of the recess 33 located directly below. The shape of the lower end of the second recess 34 is not limited to this. For example, a protrusion extending from the lower end of the projection 35 in the direction of the normal line 32 of the second side surface may be provided to separate the lower end of the second recess 34 from the recess 33 directly below.

[0028] The protrusion 35 is formed in a substantially square shape when the first side surface 23 is viewed from the front. The protrusion 35 is formed to protrude by several millimeters from the portion constituting the recess 33 and the second recess 34. The protrusion 35 is formed to straddle from a first guide surface 42 of the rail 25, which will be described later, to the first side surface 23.

[0029] 6, the pair of rails 25 extend in the axial direction A of the support member 12. The pair of rails 25 are provided at both ends in the width direction of the second side surface 24. Each of the pair of rails 25 has a top surface 41, a first guide surface 42 provided adjacent to the top surface 41 on the first side surface 23 side, and a plurality of second guide surfaces 43 provided adjacent to the top surface 41 and facing the first guide surface 42.

[0030] The multiple second guide surfaces 43 are arranged in series in the axial direction A of the support member 12 so as to correspond one-to-one to the multiple recesses 33 provided at regular intervals in the axial direction A of the support member 12. Each of the multiple second guide surfaces 43 is inclined so as to move away from the first side surface 23 as it goes downward. Therefore, when the beam member 14 moves from the second position P2 to the third position P3, the second guide surface 43 can attract the beam member 14 in a direction approaching the first side surface 23 and position it.

[0031] As shown in Figures 2 and 3, the multiple beam members 14 are formed in the same shape. The beam members 14 extend in the lateral direction (horizontal direction). The beam members 14 are integrally formed from a resin material, but may have a core material made of, for example, a hollow steel square pipe inside a beam main body 46 described later. In that case, the beam members 14 can be manufactured by, for example, insert molding.

[0032] 6 and 7, the beam member 14 has a first portion 44 facing the first side surface 23, a second portion 45 facing the second side surface 24, and a beam main body 46 extending from the first portion 44 in the direction of the normal line 31 of the first side surface. The first portion 44 and the second portion 45 form an "L" shape when viewed from the axial direction A of the support member 12. The beam main body 46 is formed in the shape of a rectangular column having a cross-sectional shape that is elongated vertically.

[0033] The first portion 44 has a plurality of protrusions 47 and a plurality of hooks 53 extending laterally (horizontally) from the upper ends of the plurality of protrusions 47. The first portion 44 has, for example, three protrusions 47 and three hooks 53. Each of the protrusions 47 is substantially square when the first portion 44 is viewed from the front. The hooks 53 are formed integrally with the protrusions 47. The protrusions 47 and the hooks 53 are formed so as to protrude by approximately several millimeters from other portions of the first portion 44. The intervals between the plurality of protrusions 47 are formed to be substantially equal to the intervals between the recesses 33.

[0034] As shown in FIG. 12, the hook portion 53 constitutes a portion on which the projection 35 of the support member 12 hooks when the beam member 14 is in the third position P3.

[0035] As shown in Fig. 6, the second portion 45 is plate-shaped. The second portion 45 has a saddle portion 51 having a saddle shape (arch-shaped cross section). The saddle portion 51 extends in the axial direction A of the support member 12 and can straddle the rail 25. The saddle portion 51 has a plurality of guided surfaces 51A that are guided by the second guide surface 43. As shown in Figs. 6, 7, 13, etc., the guided surfaces 51A are inclined so as to approach the rail 25 (the central axis C of the rail 25) as they go upward.

[0036] Next, the assembly method and operation of the assembly shelf 11 of this embodiment will be described. First, as shown in Fig. 4, a worker connects a pair of support members 12 to each other in the short direction S via a pair of connectors 13 to form a frame-shaped frame body 52. ​​At that time, the worker fixes the upper ends of the support members 12 to each other with the upper connector 13, and fixes the lower ends of the support members 12 to each other with the lower connector 13. Furthermore, the leg parts 15 are attached to the lower connector 13. In this manner, two frame bodies 52 are formed.

[0037] 2, 3, 6, and 7, the worker stretches the beam member 14 between adjacent support members 12 in the longitudinal direction L. At that time, the worker places the beam member 14 in a first position P1 in which the second portion 45 faces the second side surface 24 while separated from the support members 12, as shown in FIGS.

[0038] As shown in Figs. 7 and 8, the worker moves the beam member 14 from its first position P1 in the direction of the normal 32 of the second side surface (substantially horizontal direction) and inserts the protruding portion 47 into one of the multiple recessed portions 33 to a second position P2 fixed to the support member 12. At this time, the saddle portion 51 of the second portion 45 of the beam member 14 straddles the rail 25 of the support member 12. At this time, as shown in Figs. 10 and 11, the three protruding portions 47 of the beam member 14 are inserted into the three recessed portions 33 of the support member 12. The worker inserts the protruding portion 47 of the beam member 14 into the innermost portion of the recessed portion 33 of the support member 12.

[0039] The beam member 14 inserted to the deepest part of the recess 33 of the support member 12 can be pushed down by hand or hit from above with a tool such as a hammer, as shown in Fig. 9. At that time, as shown in Figs. 11 and 12, the convex part 47 of the beam member 14 moves so as to drop from the deepest part of the recess 33 of the support member 12 into the second recess 34. As a result, the beam member 14 moves from the second position P2 to the third position P3. In this embodiment, the beam member 14 is pushed from the second position P2 to the third position P3 by hand or a tool, but the present invention is not limited to this embodiment, and the beam member 14 may move from the second position P2 to the third position P3 by its own weight.

[0040] At this time, as shown in FIG. 12, the convex portion 47 that has fallen into the second recess 34 engages with the projection 35 of the support member 12. As a result, when the beam member 14 is in the third position P3, the beam member 14 is locked to the support member 12, and in this state, the beam member 14 does not fall off from the support member 12. That is, when a moment of force acts on the beam member 14 in a direction from the second side surface 24 to the first side surface 23, the saddle portion 51 of the second portion 45 gets caught on the rail 25, and the beam member 14 is prevented from falling off from the support member 12. On the other hand, when a moment of force acts on the beam member 14 in a direction from the first side surface 23 to the second side surface 24, the convex portion 47 that has fallen into the second recess 34 gets caught on the projection 35, and the beam member 14 is prevented from falling off from the support member 12.

[0041] In this way, in the assembly shelf 11 of the present embodiment, the beam members 14 are locked by movement from the second position P2 to the third position P3, so no additional fixing parts are required to lock the beam members 14. This reduces the number of parts and simplifies the overall configuration of the assembly shelf 11. Furthermore, even if vibrations or the like are applied to the assembly shelf 11 when the assembly shelf 11 is moved, the beam members 14 will not unintentionally fall off the support members 12.

[0042] When the beam member 14 moves from the second position P2 to the third position P3, the saddle portion 51 of the second portion 45 of the beam member 14 can slide along the rail 25 of the support member 12. This stabilizes the posture of the beam member 14 moving from the second position P2 to the third position P3, and the beam member 14 does not fall off the support member 12 during the movement.

[0043] When the beam member 14 moves from the second position P2 to the third position P3, the beam member 14 is positioned relative to the support member 12 and firmly fixed to the support member 12 by a wedge effect acting between the second guide surface 43 of the rail 25 and the guided surface 51A of the saddle portion 51. This positioning of the beam member 14 is performed with respect to the longitudinal direction L of the assembly shelf 11. That is, as shown in Figures 13 and 14, when the beam member 14 moves from the second position P2 to the third position P3, the guided surface 51A of the beam member 14 is guided by the second guide surface 43 of the rail 25.

[0044] At this time, the second guide surface 43 is configured to move away from the first side surface 23 as it goes downward, and the guided surface 51A is inclined so as to approach the rail 25 (the central axis C of the rail 25) as it goes upward, so that a wedge effect works to attract (press) the beam member 14 to the first side surface 23 of the support member 12. This allows the beam member 14 to be firmly fixed to the support member 12. Also, rattling of the beam member 14 is prevented, and the beam member 14 is properly positioned with respect to the longitudinal direction L of the assembly shelf 11. Also, the beam member 14 does not fall off the support member 12 when the user does not intend it to.

[0045] In this embodiment, the beam member 14 is positioned properly only in the longitudinal direction L, where the size has a large effect and misalignment is easily noticeable. No special positioning is performed in the transverse direction S, where the size has a small effect and misalignment is not easily noticeable.

[0046] As shown in Fig. 2, after the beam members 14 are installed at a predetermined installation height, a shelf board 16 is installed between the pair of beam members 14 as shown in Fig. 15. The shelf board 16 can be easily attached to the pair of beam members 14 by aligning the pair of hook portions 17 with the beam members 14 and placing it on the beam members 14. By installing the shelf boards 16 on all the beam members 14, the assembly of the assembly shelf 11 is completed as shown in Fig. 1. To disassemble the assembly shelf 11, the above steps can be reversed.

[0047] When it is desired to change the installation height of the shelf board 16, the installation height of the shelf board 16 can be changed extremely easily by appropriately changing the position of the beam member 14 relative to the support member 12 with the shelf board 16 removed.

[0048] FIG. 16 shows a modified example of the assembly shelf 11. In the modified assembly shelf 11, one support member 12 having a symmetrical shape as described above doubles as a support for two assembly shelves 11. That is, of the support member 12 located in the center of the figure, the first side surface 23 located on the left and the rail 25 located on the left are used to support the left assembly shelf 11. Similarly, of the support member 12 located in the center of the figure, the first side surface 23 located on the right and the rail 25 located on the right are used to support the right assembly shelf 11. In this way, two assembly shelves 11 can be connected for use. Furthermore, the number of assembly shelves 11 that can be connected is not limited to two, and the assembly shelves 11 can be connected to each other an infinite number of times as long as there is space.

[0049] According to this embodiment, the following can be said: The assembly shelf 11 includes a support member 12 having a first side surface 23 having a plurality of recesses 33 provided at regular intervals in the axial direction A, a second side surface 24 adjacent to the first side surface 23, and a beam member 14 having a first portion 44 having a protrusion 47 and facing the first side surface 23, and a second portion 45 provided adjacent to the first portion 44 and facing the second side surface 24, each of the plurality of recesses 33 extending in the direction of a normal line 32 of the second side surface, and the beam member 14 is movable between a first position P1 where the second portion 45 faces the second side surface 24 in a state separated from the support member 12, and a second position P2 where the beam member 14 is moved from the first position P1 in the direction of the normal line 32 of the second side surface and fixed to the support member 12 by inserting the protrusion 47 into any of the plurality of recesses 33.

[0050] According to this configuration, the beam member 14 can be fixed to the support member 12 with a single touch, by a simple structure of inserting the convex portion 47 into the first concave portion 33. This makes it extremely easy to change the installation height of the beam member 14. Also, since the beam member 14 can be fixed by moving in the direction of the normal line 32 of the second side surface, the concave portions 33 can be placed at relatively small intervals, and this allows the installation height of the beam member 14 to be adjusted at finer intervals. Furthermore, the simple structure of combining the convex portions 47 and the concave portions 33 allows for easy cleaning, making it suitable for use in food factories and the like.

[0051] In this case, the first side 23 has a plurality of second recesses 34, each of which extends downward from the innermost portion of each of the plurality of recesses 33, and the protrusion 47 is capable of dropping into the second recess 34 at the second position P2, thereby enabling the beam member 14 to move from the second position P2 to a third position P3 which is lower than the second position P2.

[0052] According to this configuration, by adopting a structure in which the convex portion 47 falls into the second recess portion 34 and the beam member 14 moves from the second position P2 to the third position P3, it is possible to prevent the beam member 14 from unintentionally falling off the support member 12.

[0053] In this case, the support member 12 includes a rail 25 protruding from the second side 24 and extending in the axial direction A, and the second portion 45 has a saddle-shaped saddle portion 51 that extends in the axial direction A and can straddle the rail 25, and the saddle portion 51 is capable of sliding along the rail 25 when the beam member 14 moves between the second position P2 and the third position P3.

[0054] According to this configuration, since the second portion 45 has the saddle portion 51, it is possible to prevent the beam member 14 from falling off the support member 12 when the beam member 14 moves from the second position P2 to the third position P3.

[0055] The first side 23 has a protrusion 35 at a position surrounded by the recess 33 and the second recess 34, and when the beam member 14 is in the third position P3, the protrusion 47 that falls into the second recess 34 engages with the protrusion 35.

[0056] This configuration can prevent the beam member 14 from falling off from the support member 12 when in the third position P3. That is, when a force moment acts on the beam member 14 in a direction from the second side surface 24 to the first side surface 23, the saddle portion 51 of the second portion 45 gets caught on the rail 25, and the beam member 14 can be prevented from falling off from the support member 12. On the other hand, when a force moment acts on the beam member 14 in a direction from the first side surface 23 to the second side surface 24, the convex portion 47 that has fallen into the second concave portion 34 gets caught on the protrusion 35, and the beam member 14 can be prevented from falling off from the support member 12.

[0057] Rail 25 has a top surface 41, a first guide surface 42 provided adjacent to top surface 41 on the side of first side surface 23, and a second guide surface 43 provided adjacent to top surface 41 and facing first guide surface 42, which is inclined so as to move away from first side surface 23 as it extends downward.

[0058] According to this configuration, when the beam member 14 moves from the second position P2 to the third position P3, the second guide surface 43 acts like a wedge, and the beam member 14 is drawn to the first side surface 23 of the support member 12. This makes it possible to position the beam member 14 relative to the support member 12 and prevent the beam member 14 from wobbling. In addition, the wedge effect makes it possible to firmly fix the beam member 14 to the support member 12. This makes it possible to prevent the beam member 14 from falling off the support member 12 when the user does not intend to do so.

[0059] The saddle portion 51 has a guided surface 51A that is guided by the second guide surface 43, and the guided surface 51A is inclined so as to approach the rail 25 as it goes upward.

[0060] According to this configuration, when the beam member 14 moves from the second position P2 to the third position P3, the guided surface 51A in addition to the second guide surface 43 acts like a wedge, and the beam member 14 is drawn to the first side surface 23 of the support member 12. This positions the beam member 14 with respect to the support member 12, and prevents the beam member 14 from rattling. In addition, the above-mentioned wedge effect is further increased, so that the beam member 14 can be fixed more firmly to the support member 12.

[0061] The beam member 14 has a beam main body 46 extending in the direction of a normal 31 to the first side surface, and the direction of the normal 31 to the first side surface coincides with the longitudinal direction L.

[0062] According to this configuration, the beam members 14 can be positioned with respect to the longitudinal direction L of the assembly shelf 11. Therefore, according to the above configuration, the beam members 14 can be positioned with respect to the support members 12 with respect to the longitudinal direction L of the assembly shelf 11, which generally requires stricter positioning standards. Conversely, in the present invention, since the length in the transverse direction S intersecting the longitudinal direction L is shorter and therefore the effect of misalignment is smaller than in the longitudinal direction L, positioning in the transverse direction S is not considered important.

[0063] The support member 12 has a first side surface 23 that is additionally provided at a position facing the first side surface 23 and adjacent to the second side surface 24. With this configuration, the support member 12 can be formed symmetrically, and the beam members 14 can be attached to both the left and right sides of the support member 12. As a result, when two assembly shelves 11 are arranged adjacent to each other, one support member 12 can be shared by the two assembly shelves 11, reducing the number of support members 12 and reducing the cost of introducing the assembly shelves 11 to factories and stores. Furthermore, by connecting several assembly shelves 11 in series, the rigidity of the assembly shelves 11 can be increased, resulting in a more stable assembly shelf 11.

[0064] The above-described embodiment can be implemented with various substitutions and modifications. Of course, the above-described different embodiments can be appropriately combined to form one invention. [Explanation of symbols]

[0065] 11 Assembly Shelf 12 Support member 14 Beam member 23 First aspect 24 Second aspect 25 Rail C center axis 31 Normal of first side 32 Normal of the second side 33 Recess 34 Second recess 35 Protrusion 41 Top surface 42 First guide surface 43 Second guide surface P1 1st position P2 2nd position P3 3rd position 44 Part 1 45 Part 2 46 Beam body 47 Convex 51 Saddle 51A Guided surface 52 Frame L Longitudinal S Short side A axis direction

Claims

1. A support member having a first side surface having a plurality of recesses spaced at regular intervals in an axial direction thereof and a second side surface adjacent to the first side surface; a beam member including a first portion having a protrusion and facing the first side surface, and a second portion provided adjacent to the first portion and facing the second side surface; Equipped with Each of the plurality of recesses extends in a normal direction of the second side surface, The beam member is an assembly shelf that is movable between a first position in which the second portion faces the second side surface while separated from the support member, and a second position in which the beam member is moved from the first position in a normal direction to the second side surface and fixed to the support member by inserting the convex portion into one of the multiple concave portions.

2. The first side surface has a plurality of second recesses, each of the second recesses extending downward from a respective innermost portion of the plurality of recesses; 2. The assembly shelf according to claim 1, wherein the convex portion is capable of dropping into the second concave portion at the second position, and accordingly the beam member is capable of moving from the second position to a third position lower than the second position.

3. The support member includes a rail protruding from the second side surface and extending in the axial direction, 3. The assembly shelf according to claim 2, wherein the second portion has a saddle-shaped saddle portion extending in the axial direction and capable of straddling the rail, the saddle portion being slidable along the rail when the beam member moves between the second position and the third position.

4. the first side surface has a protrusion at a position surrounded by the recess and the second recess, 4. The assembly shelf according to claim 3, wherein when said beam member is in said third position, said convex portion recessed into said second recess engages with said projection.

5. 4. The assembly shelf according to claim 3, wherein the rail has a top surface, a first guide surface provided adjacent to the top surface on the first side surface side, and a second guide surface provided adjacent to the top surface and facing the first guide surface, the second guide surface being inclined so as to move away from the first side surface as it extends downward.

6. 6. The assembly shelf according to claim 5, wherein the saddle portion has a guided surface that is guided by the second guide surface, and the guided surface is inclined so as to approach the rail as it goes upward.

7. The beam member has a beam body extending in a normal direction of the first side surface, The assembly shelf according to claim 5 , wherein a normal direction of the first side surface coincides with a longitudinal direction.

8. 2. The assembly shelf according to claim 1, wherein the support member has an additional first side surface provided at a position opposite to the first side surface and adjacent to the second side surface.

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