Assembly support and assembly

Abstract

To provide an assembly pole and an assembly whose length can be changed and which have excellent stability.SOLUTION: An assembly pole comprises: a first pole member which extends in a longitudinal direction from a tip end to a base end, and has an L-shaped cross section; and a second pole member which extends in the longitudinal direction from a tip end to a base end, and has an L-shaped cross section and an outer surface fitted to an inner surface of the L-shape of the first pole member. On an inner surface of each corner of the L-shape of the first pole member, multiple first engagement parts are arranged in the longitudinal direction at a prescribed interval, and on an outer surface of each corner of the L-shape of the second pole member, multiple second engagement parts capable of engaging to the first engagement parts, are arranged in the longitudinal direction at a prescribed interval.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an assembly support and an assembly. [Background technology]

[0002] BACKGROUND ART An assembly-type storage unit formed by assembling a placing portion and a support portion is known (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-52457 Summary of the Invention [Problem to be solved by the invention]

[0004] In the collapsible storage unit described in Patent Document 1, the length of the support columns, i.e., the vertical spacing between the mounting sections, can be changed by changing the number of support column members connected to the support column engagement sections. It would be convenient if the length of the support columns could be changed by a method other than changing the number of support column members. Furthermore, when the support columns are made up of multiple members, it is desirable that the members do not shift or rattle relative to each other.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an assembly support and an assembly that are variable in length and have excellent stability. [Means for solving the problem]

[0006] The above problems are solved by the present invention. That is, the present invention (1) provides: a first support member extending longitudinally from the distal end to the proximal end and having an L-shaped cross section; a second strut member extending longitudinally from the distal end to the proximal end, having an L-shaped cross-sectional shape and having an outer surface that generally matches the L-shaped inner surface of the first strut member; Equipped with a plurality of first engagement portions are provided at predetermined intervals in the longitudinal direction on an inner surface of the L-shaped corner of the first support member; The second support member has a plurality of second engagement portions engageable with the first engagement portions provided at predetermined intervals in the longitudinal direction on an outer surface of the L-shaped corner of the second support member.

[0007] The present invention (2) is a support for an assembly described in (1), in which the first engagement portion has a first extension portion extending from the inner surface and a second extension portion extending from the first extension portion in a direction different from the first extension portion, and the second engagement portion has a third extension portion extending from the outer surface and a fourth extension portion extending from the third extension portion in a direction different from the first extension portion, and the first engagement portion and the second engagement portion have shapes that approximately fit each other.

[0008] The present invention (3) is a support for an assembly described in (2), in which the first extension portion is a first horizontal extension portion extending approximately horizontally from the inner surface, the second extension portion is a first vertical extension portion extending approximately vertically from the first horizontal extension portion, the third extension portion is a second horizontal extension portion extending approximately horizontally from the outer surface, and the fourth extension portion is a second vertical extension portion extending approximately vertically from the second horizontal extension portion.

[0009] The present invention (4) is a support for an assembly described in (2) or (3), in which a protrusion is provided on one of the second extension portion and the fourth extension portion, and a groove portion that fits into the protrusion is provided on the other of the second extension portion and the fourth extension portion.

[0010] The present invention (5) is a support for an assembly described in any one of (1) to (4), which comprises at least one regulating portion provided on one of the inner corner surface of the L-shape of the first support member and the outer corner surface of the L-shape of the second support member, and a plurality of regulating receiving portions provided on the other of the inner corner surface of the L-shape of the first support member and the outer corner surface of the L-shape of the second support member, which receive the regulating portion.

[0011] The present invention (6) is a support for an assembly described in (5), in which the regulating portion is a convex portion arranged on the base end side of one of the first support member and the second support member, and the regulating receiving portion is a concave portion arranged from the base end side to the center of the other of the first support member and the second support member.

[0012] The present invention (7) is a support for an assembly according to (5) or (6), in which, when the regulating portion and the regulating receiving portion are engaged, the first engaging portions and the second engaging portions are engaged with each other.

[0013] The present invention (8) is an assembly having an assembly support pole described in any one of (1) to (7), a first mounting portion connected to the tip end of the first support pole member, and a second mounting portion connected to the base end of the second support pole member. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide an assembly support column and an assembly that are variable in length and have excellent stability. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a perspective view showing an example of a rack including an assembly support column. [Figure 2] FIG. 2 is a perspective view showing an example of a rack including an assembly support column. [Figure 3] FIG. 3 is a perspective view showing an example of a rack including an assembly support column. [Figure 4] FIG. 4 is a perspective view showing an example of a first mounting portion and an assembly support column. [Figure 5] FIG. 5 is an enlarged view showing a connection point between the first mounting portion and the assembly support column. [Figure 6] FIG. 6 is a perspective view showing an example of an assembly support column, a second placement portion, and a caster portion. [Figure 7] FIG. 7 is an enlarged view showing a connection point between the assembly support column and the second mounting portion. [Figure 8]FIG. 8 is a front view showing the first support member. [Figure 9] FIG. 9 is a side view showing the first support member. [Figure 10] FIG. 10 is a plan view showing the first support member. [Figure 11] FIG. 11 is a bottom view showing the first support member. [Figure 12] 12 is a cross-sectional view of the first support member taken along line AA in FIG. [Figure 13] FIG. 13 is a perspective view showing the first support member. [Figure 14] FIG. 14 is a perspective view showing the first support member. [Figure 15] FIG. 15 is a perspective view showing the first support member. [Figure 16] FIG. 16 is a front view showing the second support member. [Figure 17] FIG. 17 is a side view showing the second support member. [Figure 18] FIG. 18 is a plan view showing the second support member. [Figure 19] 19 is a cross-sectional view of the second support member taken along line BB in FIG. 18. FIG. [Figure 20] FIG. 20 is a perspective view showing the second support member. [Figure 21] FIG. 21 is a perspective view showing the second support member. [Figure 22] FIG. 22 is a perspective view showing the second support member. [Figure 23] FIG. 23 is a front view of the assembly support column in its shortest position. [Figure 24] FIG. 24 is a side view of the assembly support column in its shortest position. [Figure 25] FIG. 25 is a plan view of the assembly support column in its shortest position. [Figure 26] FIG. 26 is a bottom view of the assembly support column in its shortest position. [Figure 27] FIG. 27 is a cross-sectional view taken along line CC in FIG. 25, with the assembly support pole at its shortest position. [Figure 28] FIG. 28 is an enlarged cross-sectional view showing an engagement portion between a first engagement portion of a first support member and a second engagement portion of a second support member. [Figure 29] FIG. 29 is a perspective view of the assembly support column in its shortest position. [Figure 30] FIG. 30 is a perspective view of the assembly support column in its shortest position. [Figure 31] FIG. 31 is a perspective view of the assembly support column in its shortest position. [Figure 32] FIG. 32 is a front view of the assembly support column in its longest position. [Figure 33] FIG. 33 is a side view of the assembly support column in its longest position. [Figure 34] FIG. 34 is a cross-sectional view taken along line CC in FIG. 25, with the assembly support pole at its longest position. DETAILED DESCRIPTION OF THE INVENTION

[0016] An assembly support column according to an embodiment of the present invention will now be described with reference to the drawings. The assembly support column according to this embodiment is made up of two support members each having an L-shaped cross section. The two support members have multiple engagement portions at the corners of the L-shape, and the length of the support member can be changed by changing the engagement points. The engagement portions at the corners make it difficult for the two support members to shift or rattle.

[0017] 1 to 3 are perspective views showing an example of a rack 2 which is an assembly including an assembly support 1 according to an embodiment of the present invention. The rack 2 has a mounting portion 10, caster portions 30, and an assembly support 1 (hereinafter also simply referred to as support 1).

[0018] The placement section 10 is a tray on which an article can be placed. The placement section 10 is made of, for example, resin. In this embodiment, the placement section 10 has a first placement section 11 and a second placement section 12. Since the first placement section 11 and the second placement section 12 have the same configuration, the configuration of the first placement section 11 will be described here, and a description of the configuration of the second placement section 12 will be omitted.

[0019] The first mounting portion 11 has a rectangular storage portion 16 on its front side 13, which is composed of a bottom wall 14 and a peripheral wall 15. An upper opening 17 is provided at each of the four corners of the storage portion 16, to which a support column 1 can be connected. The upper openings 17 have a shape that approximately matches the tip and base ends of the support column 1. Furthermore, lower openings 19 are provided at each of the four corners of a back side 18 of the first mounting portion 11, to which the support column 1 can be connected. The lower openings 19 have a shape that approximately matches the tip and base ends of the support column 1. Furthermore, on the back side of the first mounting portion 11, adjacent to the lower openings 19, are provided mounting portions 21 to which caster units 30 can be attached. The mounting portions 21 have a shape that approximately matches the shafts of the caster units 30.

[0020] In this embodiment, as shown in Figures 4 and 5, the tip of the support column 1 is connected to the lower opening 19 of the first mounting section 11. Furthermore, as shown in Figures 6 and 7, the base end of the support column 1 is connected to the upper opening 22 of the second mounting section 12. Furthermore, as shown in Figure 3, the shaft of the caster section 30 is connected to the mounting section 21 of the second mounting section 12. Note that the support column 1 can also be turned upside down. In other words, the base end of the support column 1 can be connected to the lower opening 19 of the first mounting section 11, and the tip of the support column 1 can be connected to the upper opening 22 of the second mounting section 12.

[0021] The support 1 is made up of a first support member 31 and a second support member 32. The first support member 31 and the second support member 32 extend in the longitudinal direction from the tip to the base end. The support 1 is made of, for example, resin.

[0022] 8 to 15 are diagrams showing an example of the first support member 31. The first support member 31 is made up of a mounting connection portion 33 and a support body .

[0023] The mounting connection portion 33 is a portion on the tip side of the first support member 31. The mounting connection portion 33 has a corner portion 35 and an L-shaped cross section. The mounting connection portion 33 has an L-shaped inner surface 36 and an L-shaped outer surface 37. The mounting connection portion 33 has a shape that approximately fits the upper openings 17, 22 and the lower opening 19 of the mounting portion 10. The tip of the mounting connection portion 33 can be connected to the upper openings 17, 22 or the lower opening 19 of the mounting portion 10.

[0024] The pillar body 34 is formed on the base end side of the mounting connection part 33. The pillar body 34 has a corner part 38 and an L-shaped cross section. The pillar body 34 has an L-shaped inner surface 39 and an L-shaped outer surface 41. The mounting connection part 33 and the pillar body 34 are formed integrally, and the L-shaped inner surface 39 of the pillar body 34 is aligned with the L-shaped outer surface 37 of the mounting connection part 33. The longitudinal axis of the corner part 35 of the mounting connection part 33 and the longitudinal axis of the corner part 38 of the pillar body 34 are approximately parallel to each other.

[0025] A plurality of first engagement portions 43 are provided on the inner corner surface 42 of the support main body 34. The first engagement portions 43 are provided at predetermined intervals in the longitudinal direction. The first engagement portions 43 are, for example, protrusions 44, and in this embodiment, six protrusions 44, namely, a first protrusion 45, a second protrusion 46, a third protrusion 47, a fourth protrusion 48, a fifth protrusion 49, and a sixth protrusion 51, are arranged at predetermined intervals in the longitudinal direction from the distal end to the proximal end. A plurality of openings 53 are formed on the outer corner surface 52 of the support main body 34. The openings 53 are cutouts created by the provision of the first engagement portions 43.

[0026] The first engagement portion 43 has a first extension portion 54 extending from the L-shaped inner surface 39 (corner inner surface 42) of the support main body 34, and a second extension portion 55 extending in a direction different from the first extension portion 54. In this embodiment, the first extension portion 54 is a first horizontal extension portion 56 extending approximately horizontally from the L-shaped inner surface 39 (corner inner surface 42) of the support main body 34, and the second extension portion 55 is a first vertical extension portion 57 extending approximately vertically from the first horizontal extension portion 56.

[0027] The second extending portion 55 (first vertical extending portion 57) is provided with a protrusion 58. The protrusion 58 is provided in a direction toward the L-shaped outer surface 41 of the support main body , for example.

[0028] At least one restricting portion 59 is provided on the corner inner surface 42 of the support main body 34. For example, a convex portion 61 is provided as the restricting portion 59 on the base end side of the first engaging portion 43 (sixth protruding portion 51) at the bottom of the first support member 31.

[0029] 16 to 22 are views showing an example of the second support member 32. The second support member 32 has a corner portion 62 and an L-shaped cross section. The second support member 32 has an L-shaped inner surface 63 and an L-shaped outer surface 64. The L-shaped outer surface 64 of the second support member 32 has a shape that approximately fits the L-shaped inner surface 39 of the support body 34 of the first support member 31. The second support member 32 also has a shape that approximately fits the upper openings 17, 22 and the lower opening 19 of the mounting part 10. The base end of the second support member 32 can be connected to the upper openings 17, 22 or the lower opening 19 of the mounting part 10.

[0030] A plurality of second engagement portions 66 engageable with the first engagement portions 43 of the first support member 31 are provided on the outer corner surface 65 of the second support member 32. The second engagement portions 66 are provided at predetermined intervals in the longitudinal direction. The second engagement portions 66 are, for example, openings 67, and in this embodiment, six openings 67, namely, a first opening 68, a second opening 69, a third opening 71, a fourth opening 72, a fifth opening 73, and a sixth opening 74, are arranged at predetermined intervals in the longitudinal direction from the distal end to the proximal end. The intervals between the second engagement portions 66 correspond to the intervals between the first engagement portions 43.

[0031] The second engagement portion 66 has a third extension portion 75 extending from the L-shaped outer surface 64 (corner outer surface 65) of the second support member 32, and a fourth extension portion 76 extending from the third extension portion 75 in a direction different from that of the third extension portion 75. In this embodiment, the third extension portion 75 is a second horizontal extension portion 77 extending approximately horizontally from the outer surface 64 (corner outer surface 65) of the second support member 32, and the fourth extension portion 76 is a second vertical extension portion 78 extending approximately vertically from the second horizontal extension portion 77. The first engagement portion 43 and the second engagement portion 66 have shapes that approximately fit together.

[0032] The fourth extension portion 76 (second vertical extension portion 78) is provided with a groove portion 79 that fits into the protrusion portion 58 of the second extension portion 55 (first vertical extension portion 57) of the first support member 31. The groove portion 79 is provided, for example, in a direction toward the L-shaped inner surface 63 of the second support member 32. It is also possible to provide a groove portion in the second extension portion 55 (first vertical extension portion 57) and provide a protrusion portion in the fourth extension portion 76 (second vertical extension portion 78) that fits into the groove portion.

[0033] The corner outer surface 65 of the second support member 32 is provided with a plurality of restriction receiving portions 81 that receive the restriction portions 59 of the first support member 31. For example, recesses 82 are provided as the restriction receiving portions 81 from the base end side to the center of the second support member 32. In this embodiment, four recesses 82, namely, a first recess 83, a second recess 84, a third recess 85, and a fourth recess 86, are provided as the restriction receiving portions 81 from the base end side to the center. The four recesses 82 are arranged at predetermined intervals in the longitudinal direction. Note that multiple recesses may be provided as the restriction receiving portions 81 on the corner inner surface 42 of the support body 34 of the first support member 31, and at least one protrusion may be provided as the restriction portion 59 on the corner outer surface 65 of the second support member 32 that fits into the recesses. Alternatively, recesses may be provided as the restriction receiving portions 81 from the tip end side to the center of the first support member 31, and a protrusion may be provided as the restriction portion 59 on the tip end side of the second support member 32.

[0034] The following describes how to assemble the first support member 31 and the second support member 32, and how to change the length of the assembly support member 1. The length of the assembly support member 1 can be changed by changing the engagement points of the multiple first engagement portions and second engagement portions.

[0035] 23 to 28 are diagrams showing a state (first state) in which the first support member 31 and the second support member 32 are assembled to make the support 1 the shortest. The support 1 of the rack 2 shown in Fig. 1 is also in the first state.

[0036] In the first state, the six protrusions 44 of the first engagement portions 43 are engaged with the six openings 67 of the second engagement portions 66. That is, the first protrusion 45 is engaged with the first opening 68, the second protrusion 46 is engaged with the second opening 69, the third protrusion 47 is engaged with the third opening 71, the fourth protrusion 48 is engaged with the fourth opening 72, the fifth protrusion 49 is engaged with the fifth opening 73, and the sixth protrusion 51 is engaged with the sixth opening 74. In the first state, the entire L-shaped inner surface 39 of the support body 34 of the first support member 31 abuts against the L-shaped outer surface 64 of the second support member 32. Also, as shown in Figure 28, the protrusions 58 of the second extension portion 55 (first vertical extension portion 57) of the first engagement portion 43 are each fitted into the grooves 79 of the fourth extension portion 76 (second vertical extension portion 78) of the second engagement portion 66.

[0037] When assembling the first support member 31 and the second support member 32, the first engagement portion 43 is pushed horizontally toward the second engagement portion 66 and then pushed vertically. Pushing in the horizontal direction engages the first extension portion 54 (first horizontal extension portion 56) and the third extension portion 75 (second horizontal extension portion 77), while pushing in the vertical direction engages the protrusion 58 into the groove 79 and engages therewith, and engages the second extension portion 55 (first vertical extension portion 57) and the fourth extension portion 76 (second vertical extension portion 78). In other words, engagement between the first engagement portion 43 and the second engagement portion engages the first horizontal extension portion 56 and the second horizontal extension portion 77, engages the first vertical extension portion 57 and the second vertical extension portion 78, and engages the protrusion 58 and the groove 79.

[0038] Also, in the first state, as shown in Figure 27, the convex portion 61, which is the regulating portion 59 of the first support member 31, engages with the first concave portion 83, which is the regulating portion closest to the base end of the four regulating receiving portions 81 of the second support member 32.

[0039] 29 to 34 are diagrams showing a state (second state) in which the first support member 31 and the second support member 32 are assembled to make the support 1 the longest. The support 1 of the rack 2 shown in Figures 2 to 4 and 6 is also in the second state.

[0040] In the second state, three of the six protrusions 44 constituting the first engagement portion 43, located closest to the base end, are engaged with three of the six openings 67 constituting the second engagement portion 66, located closest to the tip end. That is, the fourth protrusion 48 is engaged with the first opening 68, the fifth protrusion 49 is engaged with the second opening 69, and the sixth protrusion 51 is engaged with the third opening 71. In the second state, a portion of the L-shaped inner surface 39 of the strut body 34 of the first strut member 31 abuts against the L-shaped outer surface 64 of the second strut member 32. In the second state, as shown in FIG. 28 , the protrusions 58 of the second extensions 55 (first vertical extensions 57) of the first engagement portion 43 are fitted into the grooves 79 of the fourth extensions 76 (second vertical extensions 78) of the second engagement portion 66.

[0041] Also, in the second state, as shown in Figure 34, the convex portion 61, which is the regulating portion 59 of the first support member 31, engages with the fourth concave portion 86, which is the regulating portion closest to the tip of the four regulating receiving portions 81 of the second support member 32.

[0042] The strut 1 can have a length between the first state and the second state. That is, the strut 1 can be in a state in which five of the six protrusions 44 constituting the first engagement portion 43, from the base end (the second protrusion 46, the third protrusion 47, the fourth protrusion 48, the fifth protrusion 49, and the sixth protrusion 51), are engaged with five of the six openings 67 constituting the second engagement portion 66, from the tip end (the first opening 68, the second opening 69, the third opening 71, the fourth opening 72, and the fifth opening 73), respectively, or in which four of the protrusions from the base end (the third protrusion 47, the fourth protrusion 48, the fifth protrusion 49, and the sixth protrusion 51) are engaged with four of the openings from the tip end (the first opening 68, the second opening 69, the third opening 71, and the fourth opening 72), respectively. When the five protruding portions from the base end are engaged with the five openings from the tip end, respectively, the convex portion 61 serving as the restricting portion 59 of the first strut member 31 is engaged with the second recessed portion 84, which is the second restricting portion from the base end, of the four restricting portions 81 of the second strut member 32. Furthermore, when the four protruding portions from the base end are engaged with the four openings from the tip end, respectively, the convex portion 61 serving as the restricting portion 59 of the first strut member 31 is engaged with the third recessed portion 85, which is the third restricting portion from the base end, of the four restricting portions of the second strut member 32.

[0043] In the second state, the three first engagement portions 43 (the fourth protrusion 48, the fifth protrusion 49, and the sixth protrusion 51) from the base end side of the first support member 31 are engaged with the three second engagement portions 66 (the first opening 68, the second opening 69, and the third opening 71) from the tip end side of the second support member 32. Also, in the second state, as shown in FIG. 34 , the convex portion 61 serving as the restricting portion 59 of the first support member 31 is fitted into the fourth recessed portion 86, which is the central restricting portion furthest from the base end side among the four restricting receiving portions 81 of the second support member 32. Even if an attempt is made to make the support 1 longer than in the second state, the restricting portion 59 of the first support member 31 will abut against the corner outer surface 65 of the second support member 32 because the second support member 32 does not have a restricting receiving portion further tip-side than the fourth recessed portion 86, and the first support member 31 and the second support member 32 cannot be assembled. When the first support member 31 and the second support member 32 are assembled, engagement is ensured at least three points between the first engagement portions 43 and the second engagement portions 66. Note that, from the viewpoint of the strength and stability of the support, when the first support member 31 and the second support member 32 are assembled, it is preferable that a plurality of first engagement portions 43 and second engagement portions 66 are engaged with each other.

[0044] According to this embodiment, the assembly support 1 includes a first support member 31 that extends longitudinally from its distal end to its proximal end and has an L-shaped cross section, and a second support member 32 that extends longitudinally from its distal end to its proximal end and has an L-shaped cross section and an outer surface that generally fits the inner L-shape of the first support member 31. A plurality of first engagement portions 43 are provided at predetermined intervals in the longitudinal direction on an inner corner surface 42 of the L-shape of the first support member 31, and a plurality of second engagement portions 66 that can engage with the first engagement portions 43 are provided at predetermined intervals in the longitudinal direction on an outer corner surface 65 of the L-shape of the second support member 32. Because the first engagement portions 43 and the second engagement portions 66 are provided at the corner portions and the first support member 31 and the second support member 32 engage with each other at the corner portions, it is possible to provide an assembly support that is resistant to slippage and rattle and has excellent stability. Furthermore, since a plurality of first engagement portions 43 and second engagement portions 66 are provided at predetermined intervals in the longitudinal direction, it is possible to provide an assembly support 1 whose length can be changed by changing the engagement points of the first engagement portions 43 and second engagement portions 66. Since the length of the support can be easily changed without using tools or the like, it is easy to handle and highly convenient.

[0045] The first engagement portion 43 has a first extension portion 54 extending from the corner inner surface 42 and a second extension portion 55 extending from the first extension portion 54 in a direction different from that of the first extension portion 54, and the second engagement portion 66 has a third extension portion 75 extending from the corner outer surface 65 and a fourth extension portion 76 extending from the third extension portion 75 in a direction different from that of the third extension portion 75, and the first engagement portion 43 and the second engagement portion 66 have shapes that generally fit together. Because the first engagement portion 43 and the second engagement portion 66 extend in two different directions and engage in these two directions, it is possible to provide an assembly support 1 that is less likely to slip or rattle and has excellent stability.

[0046] In particular, the first extension portion 54 is a first horizontal extension portion 56 extending substantially horizontally from the corner inner surface 42, the second extension portion 55 is a first vertical extension portion 57 extending substantially vertically from the first horizontal extension portion 56, the third extension portion 75 is a second horizontal extension portion 77 extending substantially horizontally from the corner outer surface 65, and the fourth extension portion 76 is a second vertical extension portion 78 extending substantially vertically from the second horizontal extension portion 77. Because the first engagement portion 43 and the second engagement portion 66 extend in two directions that are substantially perpendicular to each other and engage in these two directions, it is possible to provide an assembly support 1 that is less likely to slip or rattle and has excellent stability.

[0047] A protrusion 58 is provided on one of the second extension portion 55 (first vertical extension portion 57) and the fourth extension portion 76 (second vertical extension portion 78), and a groove 79 that fits into the protrusion 58 is provided on the other of the second extension portion 55 (first vertical extension portion 57) and the fourth extension portion 76 (second vertical extension portion 78). By providing the second extension portion 55 and the fourth extension portion 76 with additional protrusions 58 and grooves 79, it is possible to provide an assembly support 1 that is less likely to slip off, less likely to rattle, and has excellent stability.

[0048] The assembly support 1 also includes at least one restricting portion 59 provided on one of the corner inner surface 42 of the first support member 31 and the corner outer surface 65 of the second support member 32, and a plurality of restricting receiving portions 81 provided on the other of the corner inner surface 42 of the first support member 31 and the corner outer surface 65 of the second support member 32, for receiving the restricting portion 59. By providing the restricting portion 59 and the restricting receiving portions 81, the engagement range between the first engaging portion 43 of the first support member 31 and the second engaging portion 66 of the second support member 32 can be limited, thereby increasing the strength and stability of the assembled support.

[0049] As the support struts are lengthened, the overlapping portion between the first support strut member 31 and the second support strut member 32 becomes shorter, but without a certain degree of overlap, the strength and stability of the support struts cannot be maintained. Therefore, by providing the restricting portion 59 and the restricting receiving portion 81, a predetermined or greater overlapping portion between the first support strut member 31 and the second support strut member 32 is ensured. For example, the restricting portion 59 is a convex portion located on the base end side of one of the first support strut member 31 and the second support strut member, and the restricting receiving portion 81 is a concave portion located from the base end side to the center of the other of the first support strut member 31 and the second support strut member 32. Because there is no restricting receiving portion on the tip side, a predetermined or greater overlapping portion between the first support strut member 31 and the second support strut member 32 is ensured when the first support strut member 31 and the second support strut member 32 are assembled. Furthermore, when the restricting portion 59 and the restricting receiving portion 81 are engaged, the multiple first engaging portions 43 and second engaging portions 66 are engaged with each other, thereby increasing the strength and stability of the support.

[0050] Furthermore, an assembly having such an assembly support 1, a first mounting portion 11 connected to the tip of the assembly support 1, and a second mounting portion 12 connected to the base end of the assembly support 1 can store or display items or products of various heights by changing the length of the support and changing the spacing between the upper and lower mounting portions of the support, making it highly convenient. Unlike assembly supports that are lengthened by connecting multiple relatively short support members, the length of the support can be changed without changing the number of support members, so there is no problem of having to store excess support members when the support is shortened. In addition to the small number of members that make up the support, the provision of multiple engagement portions at the corners makes it possible to provide an assembly that is less likely to shift or rattle.

[0051] Although the embodiments of the present invention have been described above, various modifications and variations are possible without departing from the spirit and scope of the present invention. For example, although a rack including caster units has been described as an assembly including an assembly support column, the assembly support column according to this embodiment can also be applied to an assembly shelf without caster units. The number of mounting sections is not limited to two, and three or more mounting sections may be connected by supports. The shape of the mounting sections is not limited to those disclosed herein. The mounting positions of the supports relative to the mounting sections may be other than the four corners. The number of engagement sections provided on the first support member and the second support member is not limited to those disclosed herein. The materials of the mounting sections and supports are also not limited to those disclosed herein. [Explanation of symbols]

[0052] 1 Assembly support 2 Rack (assembly) 10. Placement section 30 Caster part 31 First support member 32 Second support member 42 Corner inner surface 43 First engagement portion 44 Protrusion 58 Protrusion 59 Regulatory Department 61 Convex part 65 Corner outer surface 66 Second engagement portion 79 Groove 81 Regulated part 82 recess

Claims

1. a first support member extending longitudinally from the distal end to the proximal end and having an L-shaped cross section; a second strut member extending longitudinally from its distal end to its proximal end, having an L-shaped cross-sectional shape and having an outer surface that generally matches the L-shaped inner surface of the first strut member; Equipped with a plurality of first engagement portions are provided at predetermined intervals in the longitudinal direction on an inner surface of the L-shaped corner of the first support member; a plurality of second engagement portions engageable with the first engagement portions are provided at predetermined intervals in the longitudinal direction on an outer surface of the L-shaped corner of the second support member, An assembly support, characterized in that the length of the assembly support can be changed by changing the engagement point between the first engagement portion of the first support member and the second engagement portion of the second support member.

2. the first engagement portion has a first extension portion extending from the inner surface and a second extension portion extending from the first extension portion in a direction different from that of the first extension portion, the second engagement portion has a third extension portion extending from the outer surface and a fourth extension portion extending from the third extension portion in a direction different from that of the first extension portion, The assembly post of claim 1 , wherein the first engaging portion and the second engaging portion are shaped to generally match each other.

3. the first extending portion is a first horizontal extending portion extending substantially horizontally from the inner surface, the second extension portion is a first vertical extension portion extending substantially vertically from the first horizontal extension portion, the third extending portion is a second horizontal extending portion extending substantially horizontally from the outer surface, The assembly support according to claim 2 , wherein the fourth extension portion is a second vertical extension portion that extends substantially vertically from the second horizontal extension portion.

4. a protrusion is provided on one of the second extension portion and the fourth extension portion, The assembly support according to claim 2 or 3, wherein the other of the second extension portion and the fourth extension portion is provided with a groove portion that fits into the protrusion portion.

5. At least one restricting portion provided on one of the inner corner surface of the L-shape of the first support member and the outer corner surface of the L-shape of the second support member; a plurality of restriction receiving portions provided on the other of the inner corner surface of the L-shape of the first support member and the outer corner surface of the L-shape of the second support member, the restriction receiving portions receiving the restriction portions; The assembly support of any one of claims 1 to 4, comprising:

6. the restricting portion is a convex portion arranged on a base end side of one of the first support member and the second support member, The assembly support according to claim 5 , wherein the restriction receiving portion is a recessed portion disposed from a base end side to a center portion of the other of the first support member and the second support member.

7. The assembly support according to claim 5 or 6, wherein a plurality of the first engaging portions and a plurality of the second engaging portions are engaged with each other when the restricting portion and the restricting receiving portion are engaged with each other.

8. A support for an assembly according to any one of claims 1 to 7; a first mounting portion connected to a tip of the assembly support column; a second mounting portion connected to a base end of the assembly support column; 1. An assembly comprising:

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