Display stand

Abstract

To provide a display stand which can be easily assembled in a short time while maintaining ease of folding.SOLUTION: A display stand 1 includes: a cylindrical body 2 formed by a pair of first side walls 10, 11 and a pair of second side walls 12; and a reinforcing body 3 installed between the pair of first side walls 10, 11 inside the cylindrical body 2. A first bent portion extending in the left-right direction at a position avoiding the reinforcing body 3 upward is formed on the front first side walls 10. A cut portion 37 extending in the left-right direction is formed on the rear first side walls 11. A hinge portion H1 extending in the up-down direction and a second bent portion extending in the front-rear direction are formed on each of the second side walls 12. The cylindrical body 2 is to be a folded form F3 in which the second side wall 12 is folded inward along the hinge portion H1 to be double-layered while the reinforcing body 3 is bent, then the rear first side wall 11 is separated in the vertical direction at the cut portion 37, the front first side wall 10 is folded forward along the first bent portion, and the second side wall 12 is folded forward along the second bent portion.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a display stand used for displaying (displaying) merchandise. [Background technology]

[0002] A display stand is known that includes a rectangular cylindrical body, a support member disposed within the body, and a top plate disposed on the support member (Patent Document 1). The body had a front panel with side panels attached to both sides, and a back panel facing the front panel. The support members and top plate were attached to the body after the body was formed into a rectangular cylindrical shape. Each side panel of the body had a fold line extending in the vertical direction, and the front panel, both side panels, and back panel had fold lines extending horizontally. The body was stored in a compact folded state in an outer box by folding both side panels inward along the fold lines extending vertically, and then folding the front panel, both side panels, and back panel back along the fold lines extending horizontally. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6287133 Summary of the Invention [Problem to be solved by the invention]

[0004] When assembling the above-mentioned display stand, the body and the support member had to be deformed separately, and then the support member had to be inserted into the cylindrical body. Therefore, the above-mentioned display stand had the problem of requiring a lot of time and effort to assemble. To solve the above problem, if the support member were pre-fixed inside the body and configured to deform inside the body in conjunction with the deformation of the body, the support member would be sandwiched between the front panel and the back panel. In this case, the front panel and the back panel would not be in close contact with each other but would face each other with a gap between them, making it difficult to fold the front panel and the back panel along the fold line extending horizontally, and it was sometimes impossible to fold the display stand compactly.

[0005] In consideration of the above circumstances, the present invention provides an exhibition stand that can be easily assembled in a short time while maintaining ease of folding. [Means for solving the problem]

[0006] The display stand according to the present invention comprises a cylindrical body formed in a cylindrical shape by a pair of first side walls arranged opposite to each other in a first direction and a pair of second side walls arranged opposite to each other in a second direction, and a reinforcing body formed shorter than the axial dimension of the cylindrical body, having both ends fixed to the inner surfaces of the pair of first side walls, and bridged between the pair of first side walls inside the cylindrical body to support a shelf section on which an article is to be placed, wherein a first bent portion extending in the second direction at a position away from the reinforcing body to one side in the axial direction is formed on one of the first side walls in the first direction, and a cut portion extending in the second direction at a position corresponding to the first bent portion is formed on the other first side wall in the first direction, and each of the The second side wall is formed with a hinge portion extending in the axial direction in a central region in the first direction, and a second bent portion extending in the first direction to connect the first bent portion and the cut portion, and the cylindrical body is deformable between an unfolded form in which the cylindrical body is maintained in the cylindrical shape, and a folded form in which the pair of second side walls are folded inward along the hinge portion while bending the reinforcing body to double them, and then the other first side wall in the first direction is separated in the axial direction at the cut portion, one of the first side walls in the first direction is folded back toward one side in the first direction along the first bent portion, and each of the doubled second side walls is folded back toward one side in the first direction along the second bent portion.

[0007] In this case, each of the second side walls is partitioned by the hinge portion into a second inner wall on one side in the first direction and a second outer wall on the other side in the first direction, and the second bent portion has a second inner bent portion formed on the second inner wall and a second outer bent portion formed on the second outer wall, and the first bent portion, the second inner bent portion and the second outer bent portion are each two weakened lines extending parallel to each other with a gap in the axial direction, and are formed in this order so as to gradually increase the gap.

[0008] In another case, each of the second side walls is partitioned by the hinge portion into a second inner wall on one side in the first direction and a second outer wall on the other side in the first direction, the second bent portion has a second inner bent portion formed on the second inner wall and a second outer bent portion formed on the second outer wall, the first bent portion is formed by one weakened line, and the second inner bent portion and the second outer bent portion are each two weakened lines extending parallel to each other with a gap in the axial direction, and are formed in this order so as to gradually increase the gap.

[0009] In this case, the device may further include an exterior box that houses the cylindrical body in the folded form, the exterior box being arranged to cover the other side of the reinforcing body in the first direction and having an exterior bottom wall that constitutes a part of the first side wall in the other side of the first direction, a pair of first exterior pieces that are connected to both ends of the exterior bottom wall in the axial direction and enclose both sides of the cylindrical body in the axial direction when in the folded form, and a pair of second exterior pieces that are connected to both ends of the exterior bottom wall in the second direction and enclose both sides of the cylindrical body in the second direction when in the folded form, the first side wall in the other side of the first direction being composed of the exterior bottom wall and a first partial wall that is juxtaposed between the exterior bottom wall and the exterior bottom wall with the cut portion sandwiched therebetween, and when the cylindrical body is in the unfolded form, the first exterior piece on one side in the axial direction is fixed to the first partial wall, and the first exterior piece on the other side in the axial direction is bent into an L-shape and engaged with the reinforcing body inside the cylindrical body, and the pair of second exterior pieces are overlapping and fixed on the exterior bottom wall.

[0010] In this case, the first bent portion and the second bent portion are formed at positions shifted to one side from the center in the axial direction, each of the first exterior pieces has a first end wall connected to the exterior bottom wall and a first flap connected to a tip of the first end wall, each of the second exterior pieces has a second end wall connected to the exterior bottom wall via a rear chamfered portion and a second flap connected to the tip of the second end wall via a front chamfer, and when the cylindrical body is in the folded form, the pair of first end walls cover both end surfaces of the cylindrical body in the axial direction, and the pair of The first flaps have their inwardly folded tip sides in contact with the cylindrical body, the surfaces of the pair of first flaps and the surfaces of the axial tip portions of the first partial walls are located on the same plane, the pair of second end walls cover both end faces of the cylindrical body in the second direction, the pair of second flaps are overlapped on the pair of first flaps with their tips butting against each other, each of the rear chamfered portions is positioned in an inclined position relative to the exterior bottom wall and the second end wall, and each of the front chamfered portions is positioned in an inclined position relative to the second end wall and the second flap.

[0011] In this case, the first side wall on one side in the first direction may be curved from both ends in the second direction toward the center so as to move away from the first side wall on the other side in the first direction in one side in the first direction. [Effects of the Invention]

[0012] According to the present invention, the display stand can be easily folded and the assembly work can be performed in a short time. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing an exhibition stand (in use) according to one embodiment of the present invention. [Figure 2] 1 is a plan view showing a blank for a cylindrical body of an exhibition stand according to one embodiment of the present invention; [Figure 3] 1 is a plan view showing a blank of a reinforcement body for an exhibition stand according to one embodiment of the present invention; [Figure 4]1 is a plan view showing a blank for a shelf portion of an exhibition stand according to one embodiment of the present invention; [Figure 5] 1 is a plan view showing a blank of an outer box for an exhibition stand according to one embodiment of the present invention. FIG. [Figure 6] FIG. 10 is an exploded perspective view illustrating a manufacturing procedure for the cylindrical body and reinforcing body of an exhibition stand according to one embodiment of the present invention. [Figure 7] 10A and 10B are perspective views illustrating a manufacturing procedure for the shelf portion of the display stand according to one embodiment of the present invention. [Figure 8] 10 is a perspective view illustrating a procedure for folding the cylindrical body of the display stand according to one embodiment of the present invention. FIG. [Figure 9] 1 is a perspective view showing a state in which the cylindrical body of the display stand according to one embodiment of the present invention is in a folded state. [Figure 10] 1 is a perspective view (cross-sectional view) illustrating a state in which the cylindrical body of the display stand according to one embodiment of the present invention is in a folded state. [Figure 11] 1 is a perspective view illustrating a procedure for putting an exhibition stand according to an embodiment of the present invention into a transport configuration. [Figure 12] 1 is a perspective view showing an embodiment of the display stand according to the present invention in a transport configuration; [Figure 13] 1 is a perspective view showing a display stand according to an embodiment of the present invention in a usable state (rear side). [Figure 14] 1 is a perspective view showing a display stand according to one embodiment of the present invention in a usable state (bottom side). DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Note that Fr, Rr, L, R, U, and D shown in the drawings indicate front, rear, left, right, top, and bottom. The front-to-back direction (first direction), left-to-right direction (second direction), and up-to-down direction (axial direction) are perpendicular to each other. Terms indicating directions and positions are used in this specification, but these terms are used for convenience of explanation and do not limit the technical scope of the present invention. Furthermore, terms indicating directions and positions are based on the directions and positions when the display stand is in use.

[0015] [Exhibition stand] An explanation will be given of an exhibition stand 1 according to an embodiment with reference to Figures 1 to 5. Figure 1 is a perspective view showing the exhibition stand 1 (usage form F2). Figure 2 is a plan view showing blanks 2A and 2B of a cylindrical body 2. Figure 3 is a plan view showing a blank 3A of a reinforcing body 3. Figure 4 is a plan view showing blanks 4A, 4B, and 4C of a shelf portion 4. Figure 5 is a plan view showing a blank 5A of an outer box 5.

[0016] The display stand 1 is transformed from a transport form F1 (see Figure 12 described below) to a usage form F2 (see Figure 1), and is used, for example, to display (display) items (not shown) in a storefront. The transport form F1 is the form in which the display stand 1 is transported or stored. The display stand 1 in the transport form F1 is formed in the shape of a flat, thick plate. The usage form F2 is the form in which the display stand 1 is placed on the floor of a store. The display stand 1 in the usage form F2 is formed in a roughly semi-cylindrical shape with a closed top. Note that the display stand 1 in the usage form F2 can also be transformed back into the transport form F1.

[0017] The display stand 1 comprises a cylindrical body 2, a reinforcing body 3, a shelf section 4, and an outer box 5. The cylindrical body 2 is generally formed by combining two blanks 2A and 2B shown in FIG. 2. The reinforcing body 3 is assembled from the blank 3A shown in FIG. 3. The shelf section 4 is generally formed by combining three blanks 4A, 4B, and 4C shown in FIG. 4. The outer box 5 is assembled from the blank 5A shown in FIG. 5. The blank 2A ​​is formed by punching out a single sheet of cardboard using a die or the like. The blanks 2B, 3A, 4A to 4C, and 5A other than the blank 2A ​​are each formed by punching out a single sheet of cardboard using a die or the like. The cardboard is, for example, two sheets of multi-layered interleaf paper glued together (two-ply interleaf paper). The cardboard sheet is, for example, a double-sided cardboard sheet with liners glued to both the front and back of a corrugated core 9A.

[0018] Although not shown in the drawings, patterns (including only colors) or designs are printed on all or part of the surfaces of the blanks 2A and 2B of the cylindrical body 2. In this specification, the direction parallel to the grain of the cardboard will be referred to as the "grain direction," and the direction perpendicular to the grain direction will be referred to as the "orthogonal direction." In addition, the direction parallel to the corrugated cardboard core 9A will be referred to as the "flux direction," and the direction perpendicular to the flute direction will be referred to as the "machine direction." In the drawings, "V" indicates the "grain direction," "W" indicates the "orthogonal direction," "X" indicates the "flux direction," and "Y" indicates the "machine direction." Figures 3 to 6 show the surfaces of cardboard and cardboard sheets.

[0019] [Cylindrical blank (1)] As shown in the upper part of Figure 2, the blank 2A ​​of the cylindrical body 2 has a first side wall 10, a pair of second side walls 12, and a pair of joining pieces 16. The first side wall 10, the pair of second side walls 12, and the pair of joining pieces 16 are each approximately rectangular with approximately the same dimensions in the grain direction, and are arranged in this order from the center toward the outside in the orthogonal direction. Note that the pair of second side walls 12 and the pair of joining pieces 16 are formed line-symmetrically in the orthogonal direction with the first side wall 10 as the center, so this specification will mainly describe one second side wall 12 and one joining piece 16.

[0020] <First side wall> The first side wall 10 is formed in a substantially rectangular shape with the long side in the grain direction. The first side wall 10 is formed with a first bent portion 20 that extends in the perpendicular direction (second direction) above the center in the grain direction (axial direction). The first side wall 10 is divided into a first lower side wall 10D and a first upper side wall 10U by the first bent portion 20. The first side wall 10 forms the front side (one side in the first direction) of the display stand 1 in usage form F2.

[0021] <Second side wall> The pair of second side walls 12 are connected to both ends of the first side wall 10 in the orthogonal direction via a first fold line L1. The second side walls 12 are formed in a generally rectangular shape that is narrower in the orthogonal direction than the first side wall 10. The second side walls 12 are formed with a hinge portion H1 extending in the grain direction (axial direction) in a central region in the orthogonal direction (first direction), and a second fold line L2 extending in the grain direction at the leading end side (rear side) in the orthogonal direction. The second side walls 12 are also formed with a second fold portion 21 and a forehead cut portion 24 that extend in the orthogonal direction (first direction) so as to be continuous with the first fold portion 20.

[0022] The second side wall 12 is divided into a second inner wall 13, a second outer wall 14, and a second front wall 15 by a hinge portion H1 and a second fold line L2. The second inner wall 13, the second outer wall 14, and the second front wall 15 are arranged side by side in this order from the center toward the outside in the perpendicular direction. The second inner wall 13 is connected to the first side wall 10 via the first fold line L1 and forms the front side (one side in the first direction) of the second side wall 12. The second outer wall 14 is connected to the second inner wall 13 via the hinge portion H1 and forms the back side (the other side in the first direction) of the second side wall 12. The second front wall 15 is connected to the second outer wall 14 via the second fold line L2 and forms the rear end of the second side wall 12. The second inner wall 13 and the second outer wall 14 are formed in an approximately rectangular shape with approximately the same dimensions in the perpendicular direction (front-to-back width), and the second front wall 15 is formed in an approximately rectangular shape that is narrower in the perpendicular direction than the second outer wall 14, etc.

[0023] The second inner wall 13 is divided into a second lower inner wall 13D and a second upper inner wall 13U by a second bent portion 21. The second outer wall 14 is divided into a second lower outer wall 14D and a second upper outer wall 14U by a second bent portion 21. The second forehead wall 15 is separated (divided) by a forehead cut portion 24 into a second lower forehead wall 15D and a second upper forehead wall 15U.

[0024] <Subcultured pieces> The pair of transition pieces 16 are connected to both ends of the pair of second side walls 12 (second front walls 15) in the perpendicular direction via the third fold line L3. The transition pieces 16 are separated (divided) into a lower transition piece 16D and an upper transition piece 16U by a transition cut portion 25 formed at the same position as the front cut portion 24 of the second front wall 15.

[0025] <1st bending part, 2nd bending part> The first fold 20, the second fold 21, the forehead cut 24, and the seam cut 25 are formed at a position offset upward (in one axial direction) from the center in the grain direction and are aligned in a generally horizontal straight line. The second fold 21 has a second inner fold 22 formed in the second inner wall 13 and a second outer fold 23 formed in the second outer wall 14. The first fold 20, the second inner fold 22, and the second outer fold 23 each comprise a so-called double crease. More specifically, the first fold 20 comprises two first weakened lines L20 extending parallel to each other with a distance D1 between them in the grain direction. The second inner folding portion 22 and the second outer folding portion 23 are composed of two second inner lines of weakness L22 and two second outer lines of weakness L23 extending parallel to each other at intervals D2 and D3 in the grain direction. The first lines of weakness L20, the second inner lines of weakness L22, and the second outer lines of weakness L23 are, for example, general-purpose lines that are crushed from the surface of the cardboard in the thickness direction. Note that the first lines of weakness L20 and the like are not limited to general-purpose lines, and may be any structure that allows the cardboard to be folded in a desired direction, such as lead lines formed with perforations on a general-purpose line. In addition, in this specification, "parallel" does not mean that they must be strictly parallel, but rather means that a slight deviation (error) is allowed.

[0026] The first folding portion 20, the second inner folding portion 22, and the second outer folding portion 23 are formed in this order so as to gradually widen the intervals D1, D2, D3 of the double ruled lines (D1 < D2 < D3). Specifically, the interval D3 between the two second outer weakened lines L23 is wider (larger) than the interval D2 between the two second inner weakened lines L22 and is located on both outer sides in the grain direction with respect to the two second inner weakened lines L22. The interval D2 between the two second inner weakened lines L22 is wider (larger) than the interval D1 between the two first weakened lines L20 and is located on both outer sides in the grain direction with respect to the two first weakened lines L20. In this embodiment, the intervals D1, D2, D3 of the double ruled lines are set to 5 mm, 7 mm, and 9 mm in this order. However, these intervals D1, D2, D3 may be freely changed according to, for example, the thickness of the blank 2A.

[0027] Between the two first weakened lines L20, a first frame portion 20A that connects the first lower wall 10D and the first upper wall 10U is formed. Between the two second inner weakened lines L22, a second inner frame portion 22A that connects the second lower inner wall 13D and the second upper inner wall 13U is formed. Between the two second outer weakened lines L23, a second outer frame portion 23A that connects the second lower outer wall 14D and the second upper outer wall 14U is formed. The first frame portion 20A, the second inner frame portion 22A, and the second outer frame portion 23A gradually become wider in this order, align the centers in the grain direction, and are arranged in a row in the orthogonal direction.

[0028] In the region where the first frame portion 20A, the second inner frame portion 22A, and the first folding curve L1 intersect, a first escape hole 26 is formed. In the region where the second inner frame portion 22A, the second outer frame portion 23A, and the hinge portion H1 intersect, a second escape hole 27 is formed. In the region where the second outer frame portion 23A, the forehead cutting portion 24, and the second folding curve L2 intersect, a third escape hole 28 is formed. The first escape hole 26, the second escape hole 27, and the third escape hole 28 are each formed in a substantially elliptical shape with the grain direction (vertical direction) as the major axis. The first escape hole 26 is formed in a substantially elliptical shape that is slightly smaller than the second escape hole 27, and the second escape hole 27 and the third escape hole 28 are formed in substantially elliptical shapes of substantially the same size.

[0029] The first fold line L1, the hinge portion H1, the second fold line L2, and the third fold line L3 are each a single general-purpose crease, but the present invention is not limited to this. The first fold line L1, the hinge portion H1, the second fold line L2, and the third fold line L3 may each be a double crease, or instead of a general-purpose crease, they may be other structures such as lead creases that fold the cardboard in a desired direction.

[0030] [Cylindrical blank (2)] As shown in the lower part of Figure 2, the blank 2B of the cylindrical body 2 has a first inner surface wall 30, a first outer surface wall 31, and a first core wall 32. The first inner surface wall 30, the first outer surface wall 31, and the first core wall 32 are each substantially rectangular with substantially the same dimensions in the flow direction, and are arranged in this order from one side to the other in the corrugated direction. The dimension (width) of the blank 2B in the flow direction is substantially equal to the dimension of the first side wall 10 in the orthogonal direction. The dimension (height) of the first inner surface wall 30 and the first outer surface wall 31 in the corrugated direction is substantially equal to the dimension (height) of the first upper side wall 10U in the grain direction, and the dimension (height) of the first core wall 32 in the corrugated direction is slightly smaller (lower) than the height of the first inner surface wall 30.

[0031] The first outer wall 31 is connected to the first inner wall 30 via two fourth fold lines L4 that extend parallel to each other and are spaced apart in the row direction. An upper frame portion 33 is formed between the two fourth fold lines L4, connecting the first inner wall 30 and the first outer wall 31. A pair of panel insertion holes 34 are drilled in the upper frame portion 33 and spaced apart in the flow direction. Note that the fourth fold line L4 is not formed at the opening positions of the panel insertion holes 34. The first core wall 32 is connected to the first outer wall 31 via a fifth fold line L5. A pair of relief recesses 35 are cut out at the leading end of the first core wall 32 in the row direction, spaced apart in the flow direction. Each relief recess 35 and each panel insertion hole 34 are arranged in a line in the row direction.

[0032] The fourth fold line L4 is, for example, a general-purpose crease formed by squeezing the back surface of the cardboard sheet in the thickness direction. The fifth fold line L5 is a perforation line consisting of multiple alternating cuts and seams. The fourth fold line L4 and the fifth fold line L5 are not limited to general-purpose creases or perforation lines, and may be other structures that fold the cardboard sheet in a desired direction, such as lead creases formed by perforations on general-purpose creases.

[0033] [Reinforcement blank] As shown in FIG. 3 , the blank 3A of the reinforcing body 3 includes a first fixed wall 40, a pair of reinforcing walls 41, and a pair of second fixed walls 42. The first fixed wall 40, the pair of reinforcing walls 41, and the pair of second fixed walls 42 are generally rectangular and have approximately the same dimensions in the corrugation direction. They are arranged in this order from the center toward the outside in the machine direction. The corrugation direction dimension (height) of the blank 3A is slightly shorter than the grain direction dimension (height) of the first lower side wall 10D. The machine direction dimension (width) of the first fixed wall 40 is approximately half the orthogonal dimension of the first side wall 10. The machine direction dimension (depth) of each reinforcing wall 41 is shorter than the orthogonal dimension of the first side wall 10 and longer than the orthogonal dimension of the second side wall 12. The machine direction dimension (width) of each second fixed wall 42 is approximately half the width of the first fixed wall 40. Since the pair of reinforcing walls 41 and the pair of second fixed walls 42 are formed symmetrically in the flow direction around the first fixed wall 40, this specification will mainly describe one reinforcing wall 41 and one second fixed wall 42.

[0034] The pair of reinforcing walls 41 are connected to both ends of the first fixed wall 40 in the flow direction via a sixth fold line L6. A reinforcing hinge line H2 extending in the row direction (up-down direction) is formed in the reinforcing wall 41 approximately at the center in the flow direction. A reinforcing groove 43 is cut along the reinforcing hinge line H2 in the lower part of the reinforcing wall 41. The reinforcing groove 43 is formed with two different row groove widths, with the upper half groove width being narrower than the lower half groove width. The pair of second fixed walls 42 are connected to both ends of the pair of reinforcing walls 41 in the flow direction via a seventh fold line L7. The second fixed wall 42 is formed with multiple (e.g., 10) auxiliary fold lines AL extending in the row direction (up-down direction) at approximately equal intervals in the flow direction. The number and spacing of the multiple auxiliary fold lines AL may be freely changed, and the auxiliary fold lines AL may be omitted.

[0035] The sixth fold line L6, the seventh fold line L7, and the reinforcing hinge line H2 are lead creases, and the auxiliary fold line AL is a general-purpose crease, but the present invention is not limited to this. The sixth fold line L6, the seventh fold line L7, the reinforcing hinge line H2, and the auxiliary fold line AL may each have another structure that folds the cardboard sheet in a desired direction.

[0036] [Shelf blank (1)] As shown in the upper part of FIG. 4, the blank 4A of the shelf portion 4 is formed in a substantially semicircular shape. More precisely, the blank 4A has a shape like a semicircular chord connected to one long side of a rectangle. While the upper part of FIG. 4 shows a blank 4A with a core 9A extending in the front-to-rear direction, a blank 4A (not shown) with a core 9A extending in the left-to-right direction is also used in this embodiment. As will be described in detail later, a blank 4A with a core 9A extending in the front-to-rear direction and a blank 4A with a core 9A extending in the left-to-right direction are stacked together to form the top plate 44 of the shelf portion 4. In other words, the top plate 44 is formed by two blanks 4A stacked so that the cores 9A intersect at right angles. A blank 4A (not shown) with a core 9A extending in the left-to-right direction is used as the bottom plate of the shelf portion 4. A pattern (including only a color), a design, or the like is printed on the surface of the blank 4A that forms the top surface (topmost surface) of the top plate 44.

[0037] [Shelf blank (2)] As shown in the middle of FIG. 4, the blank 4B of the shelf portion 4 has a top reinforcing plate 50, a front standing plate 51, and a rear standing plate 52.

[0038] <Top reinforcement plate> The top surface reinforcing plate 50 is formed in a generally trapezoidal shape with both corners on one side (front side) of the rectangular corrugation chamfered to be rounded. The chamfered portion of the top surface reinforcing plate 50 curves along part of the curved portion of the blank 4A. The corrugation dimension of the top surface reinforcing plate 50 is shorter than the corrugation dimension of the blank 4A, and the flow direction dimension is approximately equal to the flow direction dimension of the blank 4A.

[0039] <Front standing board, back standing board> The front upright plate 51 is formed in a substantially rectangular shape and is connected to one end (front end) of the top reinforcing plate 50 in the step direction, excluding the chamfered portion, via an eighth fold line L8. The rear upright plate 52 is formed in a substantially rectangular shape and is connected to the other end (rear end) of the top reinforcing plate 50 in the step direction via a ninth fold line L9. The front upright plate 51 is formed shorter in the flow direction than the rear upright plate 52. The front upright plate 51 and the rear upright plate 52 have the same dimension (height) in the step direction. A pair of front grooves 53 are cut in the front upright plate 51 from one end in the step direction toward the center. A pair of rear grooves 54 are cut in the rear upright plate 52 from the other end in the step direction toward the center.

[0040] [Shelf blank (3)] As shown in the lower part of FIG. 4, the blank 4C of the shelf portion 4 has a bottom reinforcing plate 55 and a pair of side standing plates 56.

[0041] <Bottom reinforcement plate> The bottom reinforcing plate 55 is formed in a substantially rectangular shape with one side (front end) in the flow direction bulging out in an arc shape. The bulging portion of the bottom reinforcing plate 55 curves along part of the curved portion of the blank 4A. The dimension of the bottom reinforcing plate 55 in the corrugated direction is shorter than the dimension of the blank 4A in the flow direction, and the dimension of the bottom reinforcing plate 55 in the corrugated direction is substantially equal to the dimension of the blank 4A in the flow direction.

[0042] <Side stand> The pair of side standing plates 56 are each formed in a substantially rectangular shape and are connected to both ends in the step direction (left and right direction) of the bottom reinforcing plate 55 excluding the bulging portion via the tenth fold line L10. Two pairs of side grooves 57 are cut into the pair of side standing plates 56 from both ends in the step direction toward the center.

[0043] The eighth to tenth fold lines L8 to L10 are general-purpose lines, but are not limited to these and may have other structures that fold the cardboard sheet in a desired direction.

[0044] [Blank outer box] 5, the blank 5A of the outer box 5 has an outer bottom wall 60, a pair of first outer packaging pieces 61, and a pair of second outer packaging pieces 62. The pair of second outer packaging pieces 62 are formed line-symmetrically in the flow direction around the outer bottom wall 60, and therefore, this specification will mainly describe one second outer packaging piece 62. The pair of first outer packaging pieces 61 are not completely line-symmetrical in the row direction around the outer bottom wall 60, but have similar shapes, and therefore, this specification will mainly describe one first outer packaging piece 61.

[0045] The exterior bottom wall 60 is formed in a substantially rectangular shape that is slightly larger than the first lower wall 10D of the blank 2A ​​of the cylindrical body 2. A pair of first exterior pieces 61 are connected to both ends of the exterior bottom wall 60 in the step direction (up and down direction), and a pair of second exterior pieces 62 are connected to both ends of the exterior bottom wall 60 in the flow direction (left and right direction).

[0046] <1st exterior piece> The first exterior piece 61 has a first end wall 63 and a first flap 64. The first end wall 63 on one side in the step direction (upper side) is connected to the exterior bottom wall 60 via one eleventh fold line L11, and the first end wall 63 on the other side in the step direction (lower side) is connected to the exterior bottom wall 60 via two eleventh fold lines L11. The first end wall 63 is formed in a substantially rectangular shape, and the dimension of the first end wall 63 in the step direction roughly corresponds to the thickness of the display stand 1 in transportation form F1. The first flap 64 is connected to the tip of the first end wall 63 in the step direction.

[0047] <First flap> The first flap 64 has a first flap main body 65, a first winding portion 66, and a first winding piece 67. The first flap main body 65, the first winding portion 66, and the first winding piece 67 are each formed in a substantially rectangular shape. The pair of first flap main bodies 65 are connected to both ends of the pair of first end walls 63 in the row direction via a twelfth fold line L12. The pair of first winding portions 66 are connected to both ends of the pair of first flap main bodies 65 in the row direction via a thirteenth fold line L13. The first winding portions 66 are formed to be sufficiently shorter in the row direction than the first flap main bodies 65. The pair of first winding pieces 67 are connected to both ends of the pair of first winding portions 66 in the row direction via a fourteenth fold line L14. Double-sided tape T1 is attached to the back surface of one (upper) first winding piece 67 in the row direction, approximately in the center in the flow direction. The other (lower) first winding piece 67 in the row direction is formed in a generally trapezoidal shape that narrows in the flow direction toward the outside in the row direction. A pair of interlocking grooves 68 are cut into the other (lower) first winding piece 67 in the row direction from the outer end toward the center in the row direction. The pair of interlocking grooves 68 are formed with a gap in the flow direction.

[0048] <Second exterior piece> The second exterior piece 62 has a second end wall 70 and a second flap 71. The second end wall 70 is connected to the exterior bottom wall 60 via two 15th fold lines L15, and the second flap 71 is connected to the leading edge of the second end wall 70 in the grain direction via two 16th fold lines L16. A rear chamfered portion 72 is formed between the two 15th fold lines L15, and a front chamfered portion 73 is formed between the two 16th fold lines L16. In other words, the second end wall 70 is connected to the exterior bottom wall 60 via the rear chamfered portion 72, and the second flap 71 is connected to the leading edge of the second end wall 70 via the front chamfered portion 73. The dimension of the second end wall 70 in the flow direction is approximately equal to the dimension of the first end wall 63 in the corrugated direction. The dimension of the second flap 71 in the flow direction is approximately half the dimension of the exterior bottom wall 60 in the flow direction. A double-sided tape T1 is attached to the rear surface of one (left) second flap 71 in the flow direction, at the leading end side in the flow direction and approximately in the center in the row direction.

[0049] The eleventh to sixteenth fold lines L11 to L16 are general-purpose lines, but are not limited to these and may have other structures that fold the cardboard sheet in a desired direction.

[0050] [Display stand manufacturing procedure] Next, an example of a manufacturing procedure for the display stand 1 will be described with reference to Figures 6 and 7. Figure 6 is a perspective view illustrating the manufacturing procedure for the cylindrical body 2 and the reinforcing body 3. Figure 7 is a perspective view illustrating the manufacturing procedure for the shelf portion 4.

[0051] The display stand 1 is manufactured by folding and joining (gluing) the blanks 2A, 2B, 3A, 4A to 4C, and 5A described above at appropriate locations. Here, as an example, a case where a worker manually manufactures the display stand 1 will be described. In this specification, folding cardboard or cardboard sheets so that the back surface faces inward is referred to as a "normal fold," and folding cardboard or cardboard sheets so that the front surface faces inward is referred to as a "reverse fold." Hot melt adhesives, emulsion adhesives, double-sided tape, adhesive tapes (single-sided adhesive), etc. can be used to join (glue) each part. Each blank 2A, 2B, 3A, 4A to 4C, and 5A also has cuts (perforations) or triangular notches formed to indicate the joining positions.

[0052] <Cylindrical body manufacturing> As shown in Figure 6, the worker folds the second side wall 12 of the blank 2A ​​along the first fold line L1 and folds the joining piece 16 along the third fold line L3, forming the blank 2A ​​into an approximately U-shape (C-shape) when viewed from above.

[0053] The worker folds the first core wall 32 of the blank 2B along the fifth fold line L5 and adheres it to the back surface of the first outer wall 31, and adheres the left and right back surfaces (inner surfaces) of the first inner wall 30 to the back surfaces of the pair of upper joint pieces 16U of the blank 2A. The worker folds the first outer wall 31 along the two fourth fold lines L4 and adheres the left and right surfaces (outer surfaces) of the first core wall 32 to the surfaces (back surfaces) of the pair of upper joint pieces 16U. The first core wall 32 and the first outer wall 31 form a double wall, sandwiching the pair of upper joint pieces 16U between them. The first inner wall 30, first core wall 32, and first outer wall 31 are stacked in this order from front to rear to form a first partial wall 36, which is a triple wall. The first partial wall 36 is provided between the pair of second side walls 12 and constitutes an upper portion (part) of the rear first side wall 11.

[0054] <Connection between the cylindrical body and the outer box> The worker adheres the back surfaces of both the left and right sides of the exterior bottom wall 60 of the blank 5A to the surfaces of the pair of lower joint pieces 16D of the blank 2A. The exterior bottom wall 60 is installed between the pair of second side walls 12 and forms the lower part (part) of the rear first side wall 11. The first partial wall 36 and the exterior bottom wall 60 are arranged vertically with the cut portion 37 in between to form the rear (other side in the first direction) first side wall 11. The cut portion 37 formed on the rear first side wall 11 extends in the left-right direction (second direction) at a position corresponding to (the same height as) the first folded portion 20 formed on the front first side wall 10. The cut portion 37 is formed approximately horizontally to connect the pair of second outer folded portions 23 (the pair of forehead cut portions 24).

[0055] As a result, the pair of first side walls 10, 11 are arranged opposite each other in the front-to-rear direction (first direction), and the pair of second side walls 12 are arranged opposite each other in the left-to-right direction (second direction). The pair of first side walls 10, 11 and the pair of second side walls 12 form a generally rectangular cylindrical body 2. The cylindrical body 2 and the outer box 5 (blank 5A) are connected together to form a single unit.

[0056] <Connection between the cylindrical body and the reinforcing body> The worker folds the reinforcing wall 41 of the blank 3A along the sixth fold line L6, folds the second fixed wall 42 along the seventh fold line L7, and butts the tips of the pair of second fixed walls 42 together. The reinforcing body 3 is formed shorter than the height (axial dimension) of the cylindrical body 2. Specifically, the reinforcing body 3 is formed in a generally rectangular cylindrical shape that is slightly shorter than the height of the first lower side wall 10D of the first side wall 10, which forms the front surface.

[0057] The worker gently folds the pair of reinforcing walls 41 inward along the reinforcing hinge line H2, and inserts the reinforcing body 3 into the interior through the bottom opening of the cylindrical body 2 while gently squeezing it in the front-to-back direction. The worker adheres the surface of the first fixed wall 40 to the back surface of the exterior bottom wall 60, which serves as the back surface, and adheres the surfaces of the pair of second fixed walls 42 to the back surface of the first lower wall 10D of the first side wall 11, which serves as the front surface. At this time, the worker aligns the left-to-right centers of the exterior bottom wall 60 and the first fixed wall 40, and aligns the butt position of the pair of second fixed walls 42 with the left-to-right center of the first lower wall 10D.

[0058] As a result, the reinforcing body 3 (the pair of reinforcing walls 41) is fixed at both ends to the inner surfaces of the pair of first side walls 10, 11, and is installed between the pair of first side walls 10, 11 inside the cylindrical body 2. In other words, the reinforcing body 3 is connected to the cylindrical body 2. The reinforcing wall 41 is slightly reverse-folded at the reinforcing hinge line H2. As will be described in detail later, when the reinforcing wall 41 extends in the front-rear direction, the first side wall 10 assumes a curved shape that bulges forward (see FIG. 1). The first bent portion 20 formed on the front first side wall 10 (as well as the second bent portion 21 and the cut portion 37) extends in the left-right direction (the second direction) at a position avoiding the reinforcing body 3 upward (one side in the axial direction). The exterior bottom wall 60 is provided to cover the rear of the reinforcing body 3 (the other side in the first direction). Note that the reinforcing body 3 is not present between the first upper side wall 10U and the first partial wall 36.

[0059] <Shelf manufacturing> As shown in the upper part of FIG. 7, the worker forms a top plate 44 by bonding a blank 4A (not shown) having a core 9A extended in the left-right direction to a blank 4A (see the upper part of FIG. 4) having a core 9A extended in the front-to-back direction. The worker squarely folds the front vertical plate 51 of the blank 4B along the eighth fold line L8 and squarely folds the back vertical plate 52 along the ninth fold line L9. The worker orients the front vertical plate 51 to face the front, positions the front vertical plate 51 and the back vertical plate 52 hanging from the top reinforcing plate 50, and bonds the top reinforcing plate 50 to the underside of the top plate 44. At this time, the chamfered portion of the top reinforcing plate 50 is aligned with the curved portion of the top plate 44, and the top reinforcing plate 50 is bonded to the approximate center region of the top plate 44 in the front-to-back direction. In this way, the top plate 44 and blank 4B are connected, and the shelf upper portion 45 is completed.

[0060] The worker folds the side upright plates 56 of blank 4C along the tenth fold line L10, arranging the pair of side upright plates 56 in the left-right direction and raising them from the bottom reinforcing plate 55, and then adheres the bottom reinforcing plate 55 to the top surface of another blank 4A different from the top plate 44. At this time, the bulging portion of the bottom reinforcing plate 55 is aligned with the curvature of blank 4A and adhered to approximately the center region in the left-right direction of blank 4A. In this way, blank 4A and blank 4C are connected, and the lower shelf part 46 is completed. As will be described in detail later, the lower shelf part 46 is connected to the upper shelf part 45 to form the shelf part 4 (see the lower part of Figure 7).

[0061] This largely completes the manufacture of the display stand 1. The manufacturing procedure for the display stand 1 described above is an example, and the manufacturing procedure is not limited to the above procedure, and the procedure may be changed as long as there is no contradiction. As will be described in detail later, the cylindrical body 2 is configured to be able to transform between an unfolded form F4 in which it is held in a cylindrical shape, and a folded form F3 in which it is folded flat. When the cylindrical body 2 in the folded form F3 is stored in the outer box 5, the display stand 1 becomes the transport form F1.

[0062] [Procedure for transforming the display stand into transport mode] Next, an example of the procedure for transforming the assembled display stand 1 into the transportation form F1 will be described with reference to Figures 8 to 12. Figure 8 is a perspective view illustrating the procedure for transforming the cylindrical body 2 into the folding form F3. Figure 9 is a perspective view showing the cylindrical body 2 in the folding form F3. Figure 10 is a perspective view (cross-sectional view) illustrating the cylindrical body 2 in the folding form F3. Figure 11 is a perspective view illustrating the procedure for transforming the display stand 1 into the transportation form F1. Figure 12 is a perspective view showing the display stand 1 in the transportation form F1.

[0063] The worker bends the reinforcement body 3 while folding the pair of second side walls 12 inward along the hinge portion H1 to form a double layer. Specifically, as shown in FIG. 8 , the second side wall 12 is folded forward along the first fold line L1 and the second fold line L2, while being reverse-folded along the hinge portion H1. At the same time, the reinforcing wall 41 of the reinforcement body 3 is folded forward along the sixth fold line L6 and the seventh fold line L7, while being reverse-folded along the reinforcing hinge line H2. The second side wall 12 is folded in half with the hinge portion H1 projecting toward the center in the left-right direction, and the reinforcing wall 41 is folded in half with the reinforcing hinge line H2 projecting toward the center in the left-right direction. The pair of first side walls 10, 11 approach each other to sandwich the second side wall 12 and the reinforcement body 3. The second side wall 12 and the reinforcing wall 41 are folded in the same direction, preventing interference between the second side wall 12 and the reinforcing wall 41. The pair of reinforcing walls 41 overlap with each other with the bending portions at the reinforcing hinge line H2 shifted in the front-to-rear direction.

[0064] In this state, the second inner wall 13 faces the back surface of the first side wall 10, and the second outer wall 14 faces the back surface of the first side wall 11. The second inner wall 13 and the second outer wall 14 face each other and are sandwiched between the pair of first side walls 10, 11. The reinforcing wall 41, folded in half along the reinforcing hinge line H2, is sandwiched between the pair of first side walls 10, 11 via the first fixed wall 40 and the second fixed wall 42. In other words, the cylindrical body 2 is flattened. With the cylindrical body 2 flattened, the first side wall 10, the second inner wall 13, and the second outer wall 14 form a triple wall. The pair of second frame walls 15 are not folded inward, but rather protrude forward from both left and right ends of the rear first side wall 11 (the pair of joining pieces 16).

[0065] As shown in Fig. 9, the worker folds the upper portion of the flattened cylindrical body 2 downward and forward. Specifically, after doubling each second side wall 12, the worker separates the rear (other side in the first direction) first side wall 11 in the up-and-down direction (axial direction) at the cut portion 37, folds the front (one side in the first direction) first side wall 10 forward (downward) along the first bend portion 20, and folds each doubled second side wall 12 forward (downward) along the second bend portion 21. The first upper side wall 10U is folded back approximately 180 degrees along the two first lines of weakness L20, the second upper inner wall 13U is folded back approximately 180 degrees along the two second inner lines of weakness L22, and the second upper outer wall 14U is folded back approximately 180 degrees along the two second outer lines of weakness L23.

[0066] In this state, as shown in Figures 9 and 10 (upper sectional views), the first upper wall 10U overlaps (covers) the upper side of the surface of the first lower wall 10D, and the underside of the surface of the first lower wall 10D is exposed. As shown in the lower part of Figure 10 (AA cross-sectional view), the second lower inner wall 13D and the second upper inner wall 13U face each other with the first lower wall 10D and the first upper wall 10U interposed therebetween. The second lower outer wall 14D and the second upper outer wall 14U face each other with the first lower wall 10D, the first upper wall 10U, the second lower inner wall 13D, and the second upper inner wall 13U interposed therebetween. A step is formed between the surface of the first partial wall 36 and the surface of the lower part of the first side wall 10 (first lower wall 10D) (see Figure 9).

[0067] When the triple-layered side walls 10, 13, 14 are folded back at the first and second folding portions 20, 21, the circumferential length (thickness) of the folded back portion increases stepwise from the inside to the outside, making it difficult to fold back the triple-layered side walls 10, 13, 14. If the distance D1 between the two first weakening lines L20, the distance D2 between the two second inner weakening lines L22, and the distance D3 between the two second outer weakening lines L23 are all the same dimension, as the upper portion of the cylindrical body 2 is folded back, the first frame portion 20A is pushed downward away from the second inner frame portion 22A, and the second inner frame portion 22A is pushed downward away from the second outer frame portion 23A. As a result, the upper part of the cylindrical body 2 cannot be folded back properly at the first folding portion 20, etc., and problems such as distortion and wrinkles may occur in the first upper side wall 10U and the second upper inner side wall 13U, etc.

[0068] Therefore, in the display stand 1 according to this embodiment, as shown in the upper part of Fig. 2 and the lower part of Fig. 10, the first folded portion 20 (first frame portion 20A), the second inner folded portion 22 (second inner frame portion 22A), and the second outer folded portion 23 (second outer frame portion 23A) form the folded portions of the three side walls 10, 13, 14, and the three folded portions are configured to become longer (thicker) in stages from the inside to the outside. Specifically, as already explained, the distance D1 between the two first lines of weakness L20, the distance D2 between the two second inner lines of weakness L22, and the distance D3 between the two second outer lines of weakness L23 become wider (longer) in this order in stages. With this configuration, even when the first side wall 10, the second inner wall 13, and the second outer wall 14 are stacked, the first upper side wall 10U, the second upper inner wall 13U, and the second upper outer wall 14U can be smoothly folded back along the first and second folding portions 20, 21. Furthermore, because the first to third relief holes 26, 27, and 28 are open at the intersections of the various folds, the force acting on the intersections of the various folds can be released when the triple wall is folded back.

[0069] As described above, the upper part of the cylindrical body 2 is folded forward by approximately 180 degrees relative to the lower part, and the cylindrical body 2 transforms from the unfolded configuration F4 to the folded configuration F3 (see FIG. 9). The cylindrical body 2 in the folded configuration F3 is placed on the exterior bottom wall 60 of the exterior box 5 in a compact folded state. Note that, as shown in the upper parts of FIGS. 9 and 10, the upper part of the cylindrical body 2 is not folded back exactly 180 degrees due to the repulsive force (restoring force) acting around each of the folding portions 20, 22, and 23. Therefore, the upper part of the cylindrical body 2 (first partial wall 36, etc.) assumes a posture that is slightly tilted forward from the upper end to the lower end.

[0070] Next, the worker stores the cylindrical body 2 in the folded configuration F3 in the outer box 5. Specifically, the worker folds the front upright panel 51 and the back upright panel 52 of the upper shelf 45 onto the top reinforcing panel 50, and folds the pair of side upright panels 56 of the lower shelf 46 onto the bottom reinforcing panel 55. The worker stacks the display panel 6, the lower shelf 46, and the upper shelf 45, and places them on the first lower wall 10D of the cylindrical body 2 (see FIG. 11). As a result, the difference in level between the first partial wall 36 and the first lower wall 10D is largely filled by the upper shelf 45 and the like (see FIG. 11). Note that a portion of the display panel 6 is inserted between the first lower wall 10D and the first upper wall 10U, and portions of the lower shelf 46 and the upper shelf 45 are inserted inside the folded cylindrical body 2.

[0071] The worker encloses both vertical sides of the cylindrical body 2 in the folded configuration F3 with a pair of first exterior pieces 61. Specifically, as shown in FIG. 11 , the pair of first end walls 63 are folded at approximately right angles along the eleventh fold line L11 to cover both vertical end surfaces of the cylindrical body 2 in the folded configuration F3. The pair of first flap main bodies 65 are folded at approximately right angles along the twelfth fold line L12, the pair of first wrapping portions 66 are folded at approximately right angles along the thirteenth fold line L13, and the pair of first wrapping pieces 67 are folded at approximately right angles along the fourteenth fold line L14. In other words, the leading ends of the first flaps 64 are folded inward to form a substantially U-shape (or C-shape). The pair of first flaps 64 are placed over the front side of the cylindrical body 2, with the inwardly wrapped leading ends (first wrapping pieces 67) in contact with the cylindrical body 2. In detail, the upper first winding piece 67 contacts the upper surface of the first partial wall 36 (first outer wall 31), and the lower first winding piece 67 contacts the underside of the upper shelf part 45 (or lower shelf part 46) stacked on the first side wall 10.

[0072] In this state, the folded portion of the upper first flap 64 fills the gap between the tip (lower side) and the upper side of the inclined first partial wall 36, and the folded portion of the lower first flap 64 fills the gap between the lower side of the inclined first partial wall 36 and the upper shelf part 45 (or lower shelf part 46). As a result, the surfaces of the pair of first flaps 64 (first flap main body 65) and the surface of the lower end part (axial tip part) of the first partial wall 36 are located on the same plane. Note that "on the same plane" does not require a completely coplanar surface, but rather means that a slight error of several millimeters to several tens of millimeters is allowed. Furthermore, when designing the outer box 5 (blank 5A), it is recommended to increase or decrease the height (dimension in the step direction) of the first folded portion 66 depending on the gap.

[0073] The worker encloses both left and right sides of the cylindrical body 2 in the folded configuration F3 with a pair of second exterior pieces 62. Specifically, as shown in FIG. 12 , the pair of second end walls 70 are folded at approximately right angles along the two fifteenth fold lines L15 to cover both left and right end surfaces of the cylindrical body 2 in the folded configuration F3. The pair of second flaps 71 are folded at approximately right angles along the two sixteenth fold lines L16 to butt their leading ends together and overlap the pair of first flaps 64. In addition, each rear chamfered portion 72 is inclined relative to the exterior bottom wall 60 and the second end wall 70, and each front chamfered portion 73 is inclined relative to the second end wall 70 and the second flaps 71.

[0074] Finally, the worker applies adhesive tape T2 along the butt joint of the pair of second flaps 71. The worker may also apply adhesive tape T2 to the corner formed by the first end wall 63 and the second end wall 70. The display stand 1 in the transportation form F1 may be bound with a cable tie, string, or the like (not shown) instead of adhesive tape T2.

[0075] As a result of the above, the cylindrical body 2 in the folded form F3 is stored in the outer box 5, and the display stand 1 becomes a thick plate-like transportation form F1 (see Figure 12). The display stand 1 is transported or stored in the transportation form F1. Note that the procedure for transforming the display stand 1 into the transportation form F1 described above is one example, and is not limited to the above procedure, and the procedure may be changed as long as there is no contradiction.

[0076] [Procedure for transforming a display stand from transportation mode to usage mode] Next, an example of the procedure for transforming the display stand 1 from the transportation mode F1 (see FIG. 12) into the usage mode F2 will be described with reference to Figures 1, 7, 13, and 14. Figure 13 is a perspective view showing the display stand 1 in the usage mode F2 (rear side). Figure 14 is a perspective view showing the display stand 1 in the usage mode F2 (bottom side).

[0077] The display stand 1 is transported (delivered) to a store in the transport form F1, for example, and is transformed from the transport form F1 to the use form F2 in the store. An operator peels off (or tears) the adhesive tape T2 attached along the butt joint of the pair of second flaps 71, unfolds the outer box 5, and removes the upper shelf 45, lower shelf 46, and display panel 6.

[0078] <Assembly of the shelf> As shown in the upper part of Figure 7, the worker sets the front upright plate 51 and the rear upright plate 52 of the upper shelf part 45 upright against the top reinforcing plate 50, and sets the pair of side upright plates 56 of the lower shelf part 46 upright against the bottom reinforcing plate 55. The worker orients the curved portions of the upper shelf part 45 and the lower shelf part 46 forward, aligns the top reinforcing plate 50 and the bottom reinforcing plate 55, and mates the pair of front grooves 53 and the pair of rear grooves 54 with the two pairs of side grooves 57. As shown in the lower part of Figure 7, the front upright plate 51 and the rear upright plate 52 are connected in a position that is approximately perpendicular to the pair of side upright plates 56. By connecting the upper shelf part 45 and the lower shelf part 46 in the vertical direction in this way, the shelf part 4 is completed.

[0079] <Transformation into expanded form> The worker changes the cylindrical body 2 from the folded configuration F3 to the unfolded configuration F4. Specifically, the worker stretches the front first side wall 10 folded at the first bending portion 20 and the second side wall 12 folded at the second bending portion 21 rearward (upward) (see FIG. 8). The worker pulls the front first side wall 10 forward away from the rear first side wall 11 (opening them up). The second side wall 12 folded at the hinge portion H1 is stretched in the front-to-rear direction, and at the same time, the reinforcing wall 41 folded at the reinforcing hinge line H2 is also stretched in the front-to-rear direction. This forms the cylindrical body 2 into a generally rectangular cylindrical shape. Note that in this state, the reinforcing wall 41 is slightly bent at the reinforcing hinge line H2.

[0080] <Assembly of the shelf> The worker inserts the shelf 4, with the curved portion facing forward and the top plate 44 facing upward, into the interior through the top opening of the cylindrical body 2. The shelf 4 is pushed down into the cylindrical body 2 until the blank 4A on the bottom surface comes into contact with the upper end of the reinforcing body 3 (the pair of reinforcing walls 41). The shelf 4 abuts against the upper ends of the pair of reinforcing walls 41 and is positioned higher than the first bent portion 20 and the like (see Figures 1 and 13).

[0081] In this state, the front (one side in the first direction) first side wall 10 curves from both ends in the left-right direction (second direction) toward the center, moving forward and away from the rear (other side in the first direction) first side wall 11. More precisely, because the shelf 4 is positioned higher than the first bent portion 20, etc., it pushes the first upper wall 10U forward and curves it. More precisely, the pair of left and right second upper inner walls 13U also curve slightly along with the first upper wall 10U. As a result, the shelf 4 on which articles are placed is supported by the reinforcing member 3, and the cylindrical body 2 is generally deformed into the expanded form F4. The top plate 44 of the shelf 4 is raised from the bottom of the blank 4A by the multiple upright plates 51, 52, and 56, and is therefore positioned higher than the vertical center of the first upper wall 10U, etc. (see FIGS. 1 and 13).

[0082] <Reinforcement of the cylinder> With the cylindrical body 2 in a state where it is roughly in the expanded form F4, as shown in Fig. 13, the worker attaches the upper first exterior piece 61 to the back surface of the first partial wall 36 (the surface of the first outer wall 31) with double-sided tape T1. By stacking the upper first exterior piece 61 on the triple-walled first partial wall 36, the part above the cut portion 37 of the rear first side wall 11 becomes a quadruple wall. Furthermore, by fixing the first exterior piece 61 to the first partial wall 36, the first partial wall 36 and the exterior bottom wall 60, which are separated in the up-down direction by the cut portion 37, are connected.

[0083] As shown in FIG. 14 , the worker folds the first end wall 63 of the lower first exterior piece 61 forward along the two eleventh fold lines L11 and the first winding portion 66 forward along the thirteenth fold line L13, while inserting the first winding portion 66 and the first winding piece 67 into the interior through the bottom opening of the cylindrical body 2. The worker stretches the pair of reinforcing walls 41, which are slightly bent along the reinforcing hinge line H2, in the front-to-rear direction, and engages the pair of interlocking grooves 68 formed in the first winding piece 67 with the reinforcing grooves 43 formed in the pair of reinforcing walls 41. The lower first end wall 63 and the first flap main body 65 close approximately the rear half of the bottom opening of the cylindrical body 2, and the first winding portion 66 and the first winding piece 67 are inserted into the pair of reinforcing grooves 43, maintaining the reinforcing wall 41 in an extended state in the front-to-rear direction. Note that in this embodiment, the reinforcing wall 41 is not fully extended and is slightly bent inward.

[0084] Because the reinforcing member 3 is positioned below the first bent portion 20, the pair of reinforcing grooves 43 push the central region of the first lower wall 10D forward, causing it to curve. The first upper wall 10U and the first lower wall 10D form surfaces curved with approximately the same curvature. Each second fixing wall 42 is slightly folded at a plurality of auxiliary fold lines AL so as to follow the curvature of the first upper wall 10U.

[0085] 13, the worker reverse-folds the left second exterior piece 62 along the boundary line (the 15th fold line L15) between the piece and the exterior bottom wall 60 and places it on the surface (rear surface) of the exterior bottom wall 60, and then reverse-folds the right second exterior piece 62 along the boundary line (the 15th fold line L15) between the piece and the exterior bottom wall 60 and attaches it to the double-sided tape T1 of the left second exterior piece 62. By stacking the pair of second exterior pieces 62 on the exterior bottom wall 60, a triple wall is formed below the cut portion 37 of the rear first side wall 11. Note that although the first exterior piece 61 and the second exterior piece 62 are fixed to the cylindrical body 2 via the double-sided tape T1, they may be fixed using, for example, an adhesive or a single-sided adhesive tape instead of the double-sided tape T1.

[0086] As a result of the above, the cylindrical body 2 transforms from the folded configuration F3 to the unfolded configuration F4, and the display stand 1 transforms from the transport configuration F1 to the usage configuration F2 (see FIG. 1). The display stand 1 transformed into the usage configuration F2 is installed in a storefront, and items are displayed (displayed) on the top panel 44 of the shelf section 4 of the display stand 1. Additionally, a worker attaches a display panel 6 to the display stand 1 as needed. Specifically, the worker inserts a pair of insertion pieces (not shown) protruding from the bottom of the display panel 6 into a pair of panel insertion holes 34 opened on the upper end surface (upper end frame section 33) of the first partial wall 36. Note that the above-described procedure for transforming the display stand 1 from the transport configuration F1 to the usage configuration F2 is merely an example, and is not limited to the above-described procedure; the procedure may be reversed as long as it is consistent. Furthermore, by reversing the above-described procedure, the cylindrical body 2 in the unfolded configuration F4 can be returned to the folded configuration F3, and the display stand 1 in the usage configuration F2 can be returned to the transport configuration F1. Moreover, the display panel 6 may be omitted if it is not necessary.

[0087] In the display stand 1 according to the present embodiment described above, the cylindrical body 2 is configured to be deformable between the unfolded form F4 and the folded form F3, and the reinforcing body 3 is installed between the pair of front and rear first side walls 10, 11 inside the cylindrical body 2, regardless of the form of the cylindrical body 2. With this configuration, the reinforcing body 3 is provided in advance inside the cylindrical body 2, and therefore can be bent or stretched in conjunction with the deformation of the cylindrical body 2.

[0088] Furthermore, when the second side wall 12 is folded at the hinge portion H1, the bent reinforcing member 3 is sandwiched between the pair of front and rear first side walls 10, 11, and the pair of first side walls 10, 11 face each other with a slight gap between them (see FIG. 8 ). This makes it difficult to fold the cylindrical body 2 vertically (folding it to reduce its height). However, with the display stand 1 according to this embodiment, the first side wall 11 is separated vertically at the cut portion 37. This makes it easier to fold the first and second side walls 10, 11, 12 at the first and second folding portions 20, 21 than when the first side wall 11 is not separated. With this configuration, even if there is a slight gap between the pair of first side walls 10, 11 with the second side wall 12 folded, the cylindrical body 2 can be easily transformed into the folded form F3. As described above, the display stand 1 according to this embodiment maintains its foldability and allows for quick and easy assembly.

[0089] Furthermore, in the display stand 1 according to this embodiment, with the second side wall 12 folded in, the first side wall 10 (first bent portion 20), the second inner side wall 13 (second inner bent portion 22), and the second outer side wall 14 (second outer bent portion 23) are sequentially overlapped, and the cylindrical body 2 is folded in half vertically with the first side wall 10 facing inward, resulting in a folded configuration F3 (see FIG. 9). The first bent portion 20, the second inner bent portion 22, and the second outer bent portion 23 are so-called double creases, and the spacing D1 to D3 between the double creases increases stepwise in this order (see FIG. 2). This configuration allows the cylindrical body 2, with the first side wall 10, the second inner side wall 13, and the second outer side wall 14 overlapped, to be properly and easily folded in half vertically (see the AA cross-sectional view in FIG. 10). Furthermore, the first to third escape holes 26, 27, 28 that open at the intersections of the various folds also have an effect, which prevents wrinkles from forming diagonally at the intersections in the first side wall 10, etc. As a result, the ease of folding the cylindrical body 2 in the vertical direction can be improved.

[0090] Furthermore, in the display stand 1 according to this embodiment, the exterior box 5 is integrated with the cylindrical body 2, and the exterior bottom wall 60 of the exterior box 5 forms the lower back surface of the cylindrical body 2. Furthermore, when the cylindrical body 2 is in the unfolded configuration F4, the upper (one axial) first exterior piece 61 is fixed to the first partial wall 36, the lower (other axial) first exterior piece 61 is folded into a generally L-shape and engaged with the reinforcing body 3 inside the cylindrical body 2, and a pair of second exterior pieces 62 are overlapping and fixed to the surface (back surface) of the exterior bottom wall 60 (see FIG. 13 ). This configuration allows the exterior box 5 that houses the cylindrical body 2 in the folded configuration F3 to be used as a member to reinforce the cylindrical body 2 in the unfolded configuration F4. This eliminates the need to discard the exterior box 5 and also helps maintain the shape of the cylindrical body 2 and improves its strength.

[0091] Furthermore, in the display stand 1 according to this embodiment, when the cylindrical body 2 in the folded form F3 is stored in the exterior box 5, the leading ends of the pair of first flaps 64 are rolled inward and overlap the cylindrical body 2, and the surfaces of the pair of first flaps 64 and the leading surface of the first partial wall 36 are positioned on the same plane (see FIG. 11). Furthermore, the pair of second flaps 71 are overlapped on the pair of first flaps 64 with their leading ends butted against each other (see FIG. 12). This configuration allows the exterior box 5 packaging the cylindrical body 2 in the folded form F3 to be formed into a flat rectangular parallelepiped (thick plate-like) shape. This allows, for example, multiple thick plate-like exterior boxes 5 (display stands 1) to be stacked stably on a pallet with no gaps between them, thereby reducing transportation costs and conserving storage space.

[0092] Furthermore, according to the display stand 1 of this embodiment, because the first side wall 10 is curved, for example, information such as advertisements displayed on the surface of the first side wall 10 can be viewed not only from the front of the display stand 1, but also from diagonally in front. This improves the appeal to customers of the store where the display stand 1 is installed. Also, because there are no corners on the front side of the display stand 1, the display stand 1 is less likely to get in the way even if it is installed near a corner of a store aisle, for example.

[0093] In the display stand 1 according to the present embodiment, the first bent portion 20, the second inner bent portion 22, and the second outer bent portion 23 are formed of a so-called double ruled line, and the intervals D1 to D3 between them gradually widen in this order. However, the present invention is not limited to this. For example, when the first side wall 10 and the second side wall 12 are formed of a very thin sheet, etc., the intervals D1 to D3 of the three bent portions 20, 22, 23 may be the same (not shown).

[0094] Also, in the display stand 1 according to the present embodiment, the three bent portions 20, 22, 23 are each composed of two weakened lines L20, L22, L23. However, the present invention is not limited to this. For example, the first bent portion 20 may be composed of a single (one) first weakened line L20, and the second inner bent portion 22 and the second outer bent portion 23 may be composed of two weakened lines L22, L23 (not shown). Even in this case, it is preferable that the second inner bent portion 22 and the second outer bent portion 23 are formed so as to gradually widen the intervals D2 and D3 of the double ruled line in this order (D2 < D3). Even with this configuration, the cylindrical body 2 formed by overlapping the first side wall 10, the second inner side wall 13, and the second outer side wall 14 can be properly and easily folded in two in the vertical direction.

[0095] Also, in the display stand 1 according to the present embodiment, in the cylindrical body 2, the first bent portion 20 and the second bent portion 21 are formed at positions shifted upward from the center in the vertical direction. However, the present invention is not limited to this. For example, the first bent portion 20 and the second bent portion 21 may be formed substantially at the center in the vertical direction of the cylindrical body 2, and the cylindrical body 2 may be configured to be folded back so as to be substantially halved in the vertical direction (not shown).

[0096] Also, in the display stand 1 according to the present embodiment, the reinforcing body 3 has a pair of reinforcing walls 41, and the pair of reinforcing walls 41 are installed between the pair of first side walls 10, 11. However, the present invention is not limited to this. For example, the reinforcing body 3 may have one reinforcing wall 41 installed between the pair of first side walls 10, 11, or may have three or more reinforcing walls 41 (none of them are shown).

[0097] Furthermore, in the display stand 1 according to this embodiment, the exterior box 5 is connected to the cylindrical body 2 and forms part of the rear first side wall 11, but the present invention is not limited to this. For example, the cylindrical body 2 may have a rear surface (another first side wall) that is installed between the rear ends of a pair of second side walls 12, and the exterior bottom wall 60 of the exterior box 5 may be fixed to the rear surface of the cylindrical body 2 (not shown). Also, the cylindrical body 2 and the exterior box 5 may not be connected, but may be separate bodies (not shown).

[0098] Furthermore, in the display stand 1 according to this embodiment, the shelf section 4 is raised by connecting the top plate 44 and the bottom blank 4A with multiple standing plates 51, 52, 56, but the present invention is not limited to this. For example, the shelf section 4 may be made up of only the top plate 44 made up of multiple stacked blanks 4A, or may be made up of only one blank 4A (neither is shown). Furthermore, by changing the length (height) of the multiple standing plates 51, 52, 56, the dimension from the top surface of the shelf section 4 to the upper end surface of the cylindrical body 2 can be increased or decreased.

[0099] Furthermore, in the display stand 1 according to this embodiment, the shelf portion 4 is configured as a separate body from the cylindrical body 2 and the reinforcing body 3, but this is not limiting and the shelf portion 4 may be configured as a single body with the cylindrical body 2 or the reinforcing body 3 (neither is shown). For example, the shelf portion 4 may be configured only with a top plate 44, and the top plate 44 may be connected to the lower end of the first inner surface wall 30 or the upper end of the first fixed wall 40. In this case, the cylindrical body 2 may be placed in the folded configuration F3 by the top plate 44 being flipped up at its front side (not shown). On the other hand, after the cylindrical body 2 is placed in the unfolded configuration F4, the top plate 44 may be placed in a substantially horizontal position and supported by the reinforcing body 3 (not shown).

[0100] Furthermore, in the display stand 1 according to this embodiment, the first side wall 10 is curved so as to bulge forward, and the cylindrical body 2 is formed in a substantially semi-cylindrical shape, but the present invention is not limited to this. For example, the front first side wall may be formed in a flat plate shape that is substantially parallel to the rear first side wall 11, and the cylindrical body 2 may be formed in a rectangular cylindrical shape (not shown). Furthermore, the second side wall 12 of the cylindrical body 2 includes the second frame wall 15, but this is not limiting, and the second frame wall 15 may be omitted (not shown).

[0101] Furthermore, although the display stand 1 according to the present embodiment is made of cardboard or double-sided corrugated cardboard, the present invention is not limited to this. The display stand 1 may also be made of single-sided corrugated cardboard, double-sided corrugated cardboard, triple-sided corrugated cardboard, or a synthetic resin plate material.

[0102] The above embodiment is merely an example of the display stand of the present invention, and the technical scope of the present invention is not limited to the above embodiment. The present invention may be modified, substituted, or altered in various ways without departing from the spirit of the technical concept, and the claims include all embodiments that may fall within the scope of the technical concept. [Explanation of symbols]

[0103] 1 Exhibition stand 2 cylinders 3 Reinforcement 4 Shelf 5 outer box 10,11 First side wall 12 Second side wall 13 Second inner wall 14 Second outer wall 20 1st bending section 21 2nd bending section 22 2nd inner bending part 23 2nd outer bending part 36 1st partial wall 37 Cut section 60 Exterior bottom wall 61 1st exterior piece 62 2nd exterior piece 63 1st end wall 64 First flap 70 Second end wall 71 Second flap 72 Rear chamfer 73 Front section D1, D2, D3 intervals F3 Folding form F4 Deployment form H1 Hinge part L20 First weakening line (weak line) L22 Second inner weakening line (weakening line) L23 Second outer weakening line (weakening line)

Claims

1. a cylindrical body (2) formed into a cylindrical shape by a pair of first side walls (10, 11) arranged opposite to each other in a first direction and a pair of second side walls (12) arranged opposite to each other in a second direction; a reinforcing member (3) formed shorter than the axial dimension of the cylindrical body, having both ends fixed to the inner surfaces of the pair of first side walls, and bridged between the pair of first side walls inside the cylindrical body to support a shelf portion (4) on which an article is placed, a first bent portion (20) extending in the second direction at a position away from the reinforcing body on one side in the axial direction is formed on the first side wall in the first direction; A cut portion (37) extending in the second direction is formed on the other first side wall in the first direction at a position corresponding to the first bent portion, Each of the second side walls is formed with a hinge portion (H1) extending in the axial direction in a central region in the first direction, and a second bent portion (21) extending in the first direction to connect the first bent portion and the cut portion, The cylindrical body is The cylindrically held deployed form (F4); a folded form (F3) in which the pair of second side walls are folded inward along the hinge portion while bending the reinforcing body to double them, and then the other first side wall in the first direction is separated in the axial direction at the cut portion, one of the first side walls in the first direction is folded back in one direction in the first direction along the first bending portion, and each of the doubled second side walls is folded back in one direction in the first direction along the second bending portion.

2. Each of the second side walls is partitioned by the hinge portion into a second inner wall (13) on one side in the first direction and a second outer wall (14) on the other side in the first direction, The second bent portion has a second inner bent portion (22) formed on the second inner wall and a second outer bent portion (23) formed on the second outer wall, The display stand described in claim 1, characterized in that the first bent portion, the second inner bent portion and the second outer bent portion are two weakened lines (L20, L22, L23) extending parallel to each other with a gap (D1, D2, D3) in the axial direction, and are formed so that the gap gradually widens in this order.

3. Each of the second side walls is partitioned by the hinge portion into a second inner wall (13) on one side in the first direction and a second outer wall (14) on the other side in the first direction, The second bent portion has a second inner bent portion (22) formed on the second inner wall and a second outer bent portion (23) formed on the second outer wall, The first bent portion is formed by one weakened line (L20), The display stand described in claim 1, characterized in that the second inner bend portion and the second outer bend portion are two weakened lines (L22, L23) extending parallel to each other with a gap (D2, D3) in the axial direction, and are formed so that the gap gradually widens in this order.

4. The device further includes an outer box (5) for storing the cylindrical body in the folded state, The outer box is an exterior bottom wall (60) that is provided to cover the other side of the reinforcing body in the first direction and that constitutes a part of the first side wall in the other side of the first direction; a pair of first exterior pieces (61) connected to both ends of the exterior bottom wall in the axial direction and enclosing both sides of the folded cylindrical body in the axial direction; a pair of second exterior pieces (62) connected to both ends of the exterior bottom wall in the second direction and enclosing both sides of the folded cylindrical body in the second direction, the other first side wall in the first direction is composed of the exterior bottom wall and a first partial wall (36) arranged in parallel with the exterior bottom wall with the cut portion sandwiched therebetween, An exhibition stand as described in any one of claims 1 to 3, characterized in that when the cylindrical body is in the expanded form, one of the first exterior pieces in the axial direction is fixed to the first partial wall, the other of the first exterior pieces in the axial direction is bent into an L-shape and engaged with the reinforcing body inside the cylindrical body, and a pair of the second exterior pieces are fixed in a stacked manner on the exterior bottom wall.

5. the first bent portion and the second bent portion are formed at positions shifted to one side from the center in the axial direction, Each of the first exterior pieces includes: a first end wall (63) connected to the exterior bottom wall; a first flap (64) connected to the tip of the first end wall, Each of the second exterior pieces includes: a second end wall (70) connected to the exterior bottom wall via a rear chamfered portion (72); a second flap (71) connected to the tip of the second end wall via a front catch (73); With the cylindrical body in the folded state, the pair of first end walls cover both end surfaces of the cylindrical body in the axial direction, the pair of first flaps have their inwardly rolled-up tip sides in contact with the cylindrical body, and surfaces of the pair of first flaps and surfaces of the tip ends of the first partial walls in the axial direction are located on the same plane, The display stand described in claim 4, characterized in that a pair of the second end walls cover both end surfaces of the cylindrical body in the second direction, a pair of the second flaps are overlapped on a pair of the first flaps with their tips butted together, each of the rear chamfered portions is arranged in an inclined position relative to the exterior bottom wall and the second end wall, and each of the front chamfered portions is arranged in an inclined position relative to the second end wall and the second flap.

6. An exhibition stand as described in any one of claims 1 to 3, characterized in that the first side wall on one side in the first direction is curved from both ends in the second direction toward the center, away from the first side wall on the other side in the first direction in one side in the first direction.

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