Store fixture
The multi-layer corrugated cardboard fixtures provide a lightweight, easy-to-assemble, and recyclable solution for fixtures, overcoming the heaviness and assembly challenges of metal and wooden alternatives.
Patent Information
- Application Number
- JP2024083909
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-12-05
AI Technical Summary
Metal, resin, and wooden fixtures are heavy, difficult to assemble, require tools, and time-consuming to disassemble and dispose of.
A fixture made of a multi-layer corrugated cardboard sheet with engaging protrusions and holes for easy assembly and disassembly, using a lightweight and strong cardboard material.
The cardboard fixtures are lightweight, easy to assemble without tools, recyclable, and simple to dispose of, addressing the challenges of traditional fixtures.
Smart Images

Figure 2025177259000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to fixtures made of corrugated cardboard sheets. [Background technology]
[0002] Conventionally, fixtures with attached shelves, such as product display shelves, have been used in a variety of fields, and those made of metals such as steel, resin, or wood are widely used. Summary of the Invention [Problem to be solved by the invention]
[0003] However, metal, resin, and wooden fixtures tend to be difficult to handle as each part is heavy and requires time to assemble, and it may be necessary to prepare screws and special tools to assemble them.In addition, when disposing of such fixtures, as mentioned above, they are heavy and the screws that secure them in place must be removed, so disassembly is likely to be time-consuming.
[0004] To provide a fixture which uses a lightweight and strong corrugated cardboard sheet having a plurality of layers or more, can be easily assembled without screws or tools, and can be easily disposed of and recycled. [Means for solving the problem]
[0005] A first form of fixture according to the present invention is fixture made of a cardboard sheet consisting of a front liner, a back liner, at least two cores, and at least one intermediate liner, and the fixture comprises a rectangular back panel, a pair of side panels that are bent at right angles from a pair of opposing edges of the back panel and face each other, and at least one U-shaped shelf board whose both ends are fixed to the pair of side panels, and the pair of side panels have at least a pair of holes facing each other, and the both ends of the shelf board in the direction in which the pair of holes facing each other have at least a pair of protrusions that can engage with the at least a pair of holes.
[0006] A second form of the fixture of the present invention is described as the first form, characterized in that the at least one pair of holes includes a pair of first holes located on the front side of the fixture, a pair of second holes located on the back panel side, and a pair of third holes located between the first holes and the second holes, and the at least one pair of protrusions includes a pair of first protrusions engageable with the pair of first holes, a pair of second protrusions engageable with the pair of second holes, and a pair of third protrusions engageable with the pair of third holes, and each of the pair of first protrusions has a hook shape.
[0007] The third form of fixture of the present invention is described as the first form, characterized in that the back panel is formed with a pair of bent pieces and a notch to function as a POP mounting portion.
[0008] The fourth form of the fixture of the present invention is described as any one of the first to third forms, characterized in that the cardboard sheet consists of a front liner, a back liner, three cores, and two intermediate liners sandwiched between the three cores. [Effects of the Invention]
[0009] The fixtures of the present invention are made of lightweight yet durable cardboard sheets with multiple layers or more, and can be assembled by folding the sheets and engaging the protrusions on the shelves with the holes, making them easy to assemble, recyclable, and easy to dispose of. [Brief explanation of the drawings]
[0010] [Figure 1] 1 is a perspective view of a fixture according to one embodiment of the present invention. [Figure 2] 1A to 1C are plan views of a fixture according to one embodiment of the present invention, where (a) is a front view, (b) is a side view, and (c) is a top view. [Figure 3] 1A and 1B are plan views of the components of a fixture according to one embodiment of the present invention, where (a) shows a blank for the support column and (b) shows a blank for the shelf. [Figure 4] 4 is a partially exploded perspective view of a cardboard sheet that is the material for each component of a fixture according to one embodiment of the present invention, and is a cross-sectional view taken along the line IV-IV in FIG. 3(b). [Figure 5] FIG. 2 is an overall perspective view showing a state in which a POP board is attached to a POP mounting portion of a fixture according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to Figures 1 to 5. However, the present invention is not limited to this embodiment.
[0012] In this specification and claims, "furniture" includes "display shelves," and includes shelves on which products, exhibits, and samples are placed, or which are partially or entirely decorated and used for sales promotion.
[0013] Furthermore, in the description of this specification and the claims, "rectangle" includes not only rectangular and approximately rectangular shapes but also squares and approximately squares, and furthermore, in the description of this specification, "parallel" includes not only parallel but also approximately parallel, "orthogonal" includes not only orthogonal but also approximately orthogonal, and "right angle" includes not only right angles but also approximately right angles.
[0014] Furthermore, in the description of the scope of this specification, "up" refers to the direction from the base of the fixture toward the top, and "down" refers to the direction from the top of the fixture toward the base. However, these terms are used for convenience only and do not define absolute positions in the direction of gravity.
[0015] <Fixture structure> FIG. 1 is a perspective view of a fixture 1 according to one embodiment of the present invention, and FIG. 2 is a plan view of the fixture 1 according to this embodiment, with FIG. 2(a) being a front view, FIG. 2(b) being a side view, and FIG. 2(c) being a top view. FIG. 3 is a plan view of each component of the fixture 1 according to this embodiment, with FIG. 3(a) showing blank 10B of support 10 and FIG. 3(b) showing blank 20B of shelf 20. FIG. 4 is a partially exploded perspective view of cardboard sheet 1e, the material for each component of fixture 1 according to this embodiment, and is a cross-sectional view taken along the line IV-IV in FIG. 3(b). For ease of explanation, FIG. 2(a) shows the folding piece 111 before folding.
[0016] As shown in Figures 1 to 3, the fixture 1 according to this embodiment includes a support 10 formed by bending a single cardboard sheet into a U-shape, and a shelf 20 attached to the support 10. The support 10 and the shelf 20 are each made of a three-layer (three-stage) cardboard sheet 1e, which is made up of a front liner 1a, a back liner 1b, and two intermediate liners 1d sandwiched between three corrugations 1c, as shown in Figure 4. In the present invention, the number of shelf 20 is not limited to one but may be multiple, the number of corrugations 1c of the cardboard sheet 1e is not limited to three but may be two, and the number of intermediate liners 1d is not limited to two but may be one (i.e., the fixture may be made up of a two-layer (two-stage) cardboard sheet). Details of the configuration of the cardboard sheet 1e will be described later.
[0017] In the fixture 1 according to this embodiment, as shown in Figures 1 and 2, the support column 10 includes a rectangular back panel 11 and a pair of opposing side panels 12 that are bent at right angles from a pair of opposing first edges L1 of the back panel 11, and the shelf 20 has a U-shape with both ends fixed to the pair of side panels 12. As shown in Figures 1 and 2, the pair of side panels 12 are taller than the back panel 11, and have rounded, arc-shaped tops. However, the present invention is not limited to this shape.
[0018] 1 to 3, in the fixture 1 according to this embodiment, a pair of holes 100 are provided in the pair of side panels 12 so as to face each other, and a pair of protrusions 200 that can engage with the pair of holes 100 are provided at both ends of the shelf board 20 in the direction in which the pair of holes 100 face each other. More specifically, the pair of holes 100 includes a pair of first holes 101 located on the front side of the fixture 1, a pair of second holes 102 located on the back panel 11 side, and a pair of third holes 103 located between the first holes 101 and the second holes 102. The pair of protrusions 200 includes a pair of first protrusions 201 that can engage with the pair of first holes 101, a pair of second protrusions 202 that can engage with the pair of second holes 102, and a pair of third protrusions 203 that can engage with the pair of third holes 103. Each of the pair of first protrusions 201 has a downward hook shape. In the present invention, the number of holes 100 is not limited to three pairs but may be at least one pair, and the number of protrusions 200 is not limited to three pairs but may be at least one pair. In the present invention, the shape of first protrusion 201 is not limited to a hook shape, and third protrusion 203 may also have a hook shape.
[0019] According to this embodiment, the fixture is made of a lightweight yet strong cardboard sheet 1e with multiple layers or more, and by folding the sheet 1e and engaging the protrusion 200 of the shelf board 20 with the hole portion 100, the shelf board 20 can be fixed and assembled to the support portion 10, making the fixture lightweight, easy to assemble, and recyclable and easy to dispose of.
[0020] <blank> Turning to Figure 3, in the blank (also called blank sheet) 10B of the support portion 10 of the fixture 1 in this embodiment, as shown in Figure 3(a), the back panel 11 is connected to a pair of side panels 12 via a pair of first fold lines L1.
[0021] As shown in FIG. 3(a), the pair of side plates 12 are provided with a pair of rectangular first hole portions 101 located near the edges of the side plates 12 facing the pair of first fold lines L1 and having a pair of long sides extending parallel to the first fold lines L1, a pair of rectangular second hole portions 102 formed so that one of the long sides is aligned with the pair of first fold lines L1, and a pair of rectangular third hole portions 103 located between the first hole portion 101 and the second hole portion 102 and on the upper side in FIG. 3(a), and having a pair of long sides extending in a direction perpendicular to the first fold line L1.
[0022] 1, 2(a), and 3(a), a pair of folding pieces 111 and a notch N1 are formed on the upper side of the back panel 11 in Fig. 3(a) to function as a POP mounting portion. The pair of folding pieces 111 and the notch N1 are provided by forming a pair of second folding lines L2 spaced apart and parallel to the first folding line L1 on the upper side of the back panel 11, forming a pair of first cutting lines C1 starting and ending at both ends of the second folding line L2 so as to surround the pair of folding pieces 111, and forming second cutting lines C2 so as to form the notch N1 as shown in Fig. 1.
[0023] In the blank 20B of the shelf 20 of the fixture 1 in this embodiment, as shown in Figure 3(b), the first surface portion 21 is connected to the second surface portion 22 via the third fold line L3 and is connected to the third surface portion 23 via the fourth fold line L4.
[0024] Third protrusions 203 are provided on both ends of the first surface 21, first protrusions 201 are provided on both ends of the second surface 22, and second protrusions 202 are provided on both ends of the third surface 23. As shown in Fig. 3(b), the first protrusions 201 are provided with notches N2 that can be hooked onto the edges of the first hole 101 to strengthen the engagement, and the first protrusions 201 are hook-shaped.
[0025] In the blank 10B of the support 10 and the blank 20B of the shelf board 20 in this embodiment, the first fold line L1 to the fourth fold line L4 are set to be vertical creases parallel to the corrugation direction of the cardboard. However, the direction of the creases and the direction of the corrugations are not limited to this, and they may be formed in any direction as long as the object of the present invention can be achieved. The fold lines in this embodiment are formed, for example, by stamping a pressing member from one side.
[0026] In this embodiment, it is possible to cut one cardboard sheet 1e of a fixed length and take out one blank 10B for the support member 10 and one blank 20B for the shelf board 20, making it possible to use one cardboard sheet 1e of a fixed length without waste. For example, for one horizontally long cardboard sheet 1e, it is possible to take out the blank 10B for the support member 10 in the state shown in Figure 3(a) from the right side, and then take out the blank 20B for the shelf board 20 in the state rotated 90 degrees as shown in Figure 3(b) from the remaining part on the left side of the blank 10B.
[0027] <Assembly> The user folds a pair of side panels 12 of blank 10B of support member 10 shown in Fig. 3(a) at a pair of first fold lines L1 so that they are perpendicular to the front of Fig. 3(a) to form a U-shape, folds a pair of second surface portion 22 and a third surface portion 23 of blank 20B of shelf board 20 shown in Fig. 3(b) at a pair of third fold lines L3 and a pair of fourth fold lines L4 so that they are perpendicular to the front of Fig. 3(b) to form a U-shape, stands support member 10, and inserts protrusion 200 of shelf board 20 into hole 100 of support member 10 to form fixture 1 shown in Fig. 1. In this way, in this embodiment, fixture 1 is completed simply by folding cardboard sheet 1e and inserting protrusion 200 into hole 100, so it can be seen that assembly is easy. Furthermore, when disposing of the device, it can be disassembled simply by removing the protrusions 200 from the holes 100, so it can be understood that it can be easily disposed of.
[0028] Traditionally, display fixtures at home improvement stores have been made of metal or resin, but recent environmental issues and labor shortages have led to problems such as an increase in the workload per person. By using multi-layered cardboard for the fixtures, it is possible to reduce weight, improve assembly workability, and improve recyclability.
[0029] FIG. 5 is an overall perspective view showing a state in which a POP board 30 is attached to a POP attachment portion of fixture 1 according to one embodiment of the present invention.
[0030] The POP board 30 can be inserted into the notches N1 of the POP mounting portion described above. The user installs the POP board 30 by bending the folding pieces 111 of the pair of POP mounting portions toward themselves from the second folding line L2 as shown in Figure 5. In the present invention, the POP board 30 may be provided with a pair of notches that can fit into the pair of notches N1.
[0031] <Corrugated cardboard sheet> In this embodiment, the fixture 1 is constructed using a three-layered corrugated cardboard sheet 1e as described above. In the present invention, the corrugated cardboard sheet 1e can be a quadruple-sided corrugated cardboard sheet having three layers of corrugation 1c, or a double-sided corrugated cardboard sheet having two layers of corrugation 1c. However, the number of layers (columns) is not limited as long as it is more than one layer, and can be changed depending on the required strength and allowable board thickness.
[0032] As shown in FIG. 4, the corrugated cardboard sheet 1e has a direction A in which the multiple flutes of the corrugated cardboard that makes up the core 1c are aligned, and a direction perpendicular to direction A is the direction in which each flute extends.
[0033] The cardboard sheet 1e is 10 to 30 mm thick and weighs 3.5 kg / m 2 The following is preferable as it is easy to carry and assemble the fixtures.
[0034] The corrugation medium 1c is constructed with the so-called A-flute flute height and number of flutes. The corrugation medium base paper can be the same as that used for general corrugated board, or water-resistant corrugation medium base paper. The weight is 160 g / m². 2 It is not limited to the A flute, and may be configured with other step heights and numbers.
[0035] The intermediate liner 1d used between the multiple corrugations 1c can be any liner base paper used in general corrugated cardboard. 2 That's about it.
[0036] The following materials are used for the front liner 1a and back liner 1b. The main material used is kraft pulp made from softwood. This can be bleached or unbleached. It can also be made from hardwoods other than softwood, hemp, or recycled cardboard made mainly from softwood. The thickness of the liner should be 0.3 mm or more.
[0037] The weight of this liner base paper is 350 g / m 2It is preferable that the above is the case. It is also desirable that the front liner 1a and the back liner 1b have a certain degree of hardness and strength. For this reason, the hard and strong pulp that constitutes the front liner 1a and the back liner 1b is preferably made by pulping softwood material using the Kraft method, further improving the beating process, and strengthening it with a paper strength improver, but this is not a limitation.
[0038] Furthermore, it is desirable that the basis weight of the front liner 1a and the back liner 1b be greater than that of the intermediate liner 1d. The reason for making the surface liner thicker is that increasing the hardness of the outermost layer is effective in improving the rigidity of the cardboard sheet 1e, and increasing the basis weight of the outermost liner is effective in improving the rigidity without increasing the weight of the entire cardboard sheet 1e as much as possible.
[0039] The front liner 1a, back liner 1b, core 1c, and intermediate liner 1d are laminated together to form a cardboard sheet 1e for fixtures 1.
[0040] An example of the corrugated cardboard sheet 1e for carrying out the present invention is, for example, a double-sided corrugated cardboard sheet with an A-flute three-layer structure, with a surface liner 1a and a back liner 1b each having a basis weight of 470 g / m 2 Liner base paper, intermediate liner 1d has a basis weight of 160 g / m 2 The liner paper and core paper are 160g / m 2 The weight per unit area is approximately 2120g / m 2 can be used.
[0041] Furthermore, since various items are expected to be placed on the shelf board 20, the cardboard sheet 1e may be water-resistant. The surface of the cardboard sheet 1e opposite the surface of the front liner 1a and rear liner 1b that joins with the corrugation 1c, i.e., the surface that will become the front surface of the cardboard sheet 1e, may be treated with a water-proofing synthetic resin emulsion. The synthetic resin emulsion may be applied to one surface of the front liner 1a or rear liner 1b, and the surface opposite to the applied surface may be joined to the corrugation 1c. Note that the water-resistant treatment of the cardboard sheet 1e may not be limited to the application of a synthetic resin emulsion, and other treatment methods may also be used. For example, the synthetic resin emulsion may be applied by painting or spraying onto the entire cardboard sheet 1e. Since the cardboard sheet 1e may be used without distinction between the front and back surfaces, both the front and back surfaces of the cardboard sheet 1e may be treated with a water-resistant treatment.
[0042] The corrugated cardboard sheet 1e may also be flame-retarded. The flame retardant used in the flame-retardant treatment is one or more flame retardants selected from inorganic flame retardants, phosphorus-based flame retardants, and halogen-based organic flame retardants. Suitable examples of inorganic flame retardants include, but are not limited to, calcium carbonate, antimony trioxide, antimony sodium, zirconium compounds such as zirconium silicate and zirconium oxide, aluminum hydroxide, basic magnesium carbonate, borax, zinc borate, molybdenum trioxide, complexes of antimony dimolybdate and aluminum hydroxide, complexes of antimony trioxide and silica, complexes of antimony trioxide and zinc oxide, zirconium silicates, and complexes of zirconium compounds and antimony trioxide. Suitable examples of phosphorus-based flame retardants include, but are not limited to, phosphate esters such as ammonium phosphate, tricresyl phosphate, and diphenyl octyl phosphate. Suitable examples of halogen-based organic flame retardants include, but are not limited to, chlorinated paraffin, antimony chloride, and diphenyl chloride. The coating composition of this invention can be formulated with one or more of the above inorganic flame retardants, phosphorus-based flame retardants, and halogen-based organic flame retardants. The resulting shelf board can be impregnated or sprayed with the flame retardant to impart flame retardancy. Flame retardancy can be determined by the surface combustion test specified in JIS A1321.
[0043] <Other> The present invention is not limited to the above-described embodiments or the modifications described throughout, and appropriate changes and modifications can be made without departing from the technical concept of the present invention.
[0044] For example, as a modification of the above embodiment, a shelf board 20 may be further installed near the legs of the fixture 1 to function as a base. [Explanation of symbols]
[0045] 1 Fixtures 1a Front liner 1b Back liner 1c core 1d Intermediate liner 1e Cardboard sheet 10 Support section 11 Back plate 111 Bent piece 12 Side panel 100 holes 101 1st hole 102 2nd hole 103 3rd hole 20 shelves 200 Protrusion 201 1st protrusion 202 2nd protrusion 203 Third protrusion
Claims
1. A fixture made of a cardboard sheet consisting of a front liner, a back liner, at least two cores, and at least one intermediate liner, The fixture comprises a rectangular back panel, a pair of side panels that are bent at right angles from a pair of opposing edges of the back panel and face each other, and at least one U-shaped shelf board whose both ends are fixed to the pair of side panels; At least a pair of holes are provided in the pair of side plates so as to face each other, A fixture characterized in that at least a pair of protrusions capable of engaging with at least a pair of holes are provided on both ends of the shelf board in the direction in which the pair of holes face each other.
2. The at least one pair of holes includes a pair of first holes located on the front side of the fixture, a pair of second holes located on the back panel side, and a pair of third holes located between the first holes and the second holes, the at least pair of protrusions include a pair of first protrusions engageable with the pair of first hole portions, a pair of second protrusions engageable with the pair of second hole portions, and a pair of third protrusions engageable with the pair of third hole portions; The fixture according to claim 1, wherein each of the pair of first protrusions has a hook shape.
3. The fixture according to claim 1, characterized in that the back panel is formed with a pair of bent pieces and a notch to function as a POP mounting portion.
4. A fixture described in any one of claims 1 to 3, characterized in that the cardboard sheet consists of a front liner, a back liner, three cores, and two intermediate liners sandwiched between the three cores.