Flap fixing jig

Abstract

To provide a flap fixing jig that enables disposal processing etc., at the same time while fixed to a box, makes the disposal processing, recycling processing, etc., smoothly, and also facilitates flap fixing operation, and is easy to use and high in practicality.SOLUTION: The present invention relates to a flap fixing jig for folding outward and fixing a flap of a paper-made box over a side plate, and the flap fixing jig consists of a plate-like main body part 2 and a cut part 3 formed by cutting a part of the main body part 2, wherein the main body part 2 is made of paper, and an opening of the cut part 2 is wide enough to insert the side plate and the flap superposed on the side plate into the cut part 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a flap fixing jig that fixes the lid (flap) of a paper box such as a cardboard box in an open position. [Background technology]

[0002] When opening a cardboard box or other box and removing items from inside, there are flap fixing jigs (clips) that fix the lid (flap) of the box to improve workability. Conventionally, such a jig (clip) is known, for example, as proposed in Patent Document 1. The clip for a lid of a box disclosed in Patent Document 1 is configured to form a triangle with the corner of the box by inserting at least two outer legs into the outside of the box and at least one middle leg into the inside of the box, so that the clip can temporarily fasten the lid of the box. The clip is made by molding metal or plastic. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3129121 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the clip for the lid of a box disclosed in Patent Document 1 has the following problem: Because the clip for the lid of a box disclosed in Patent Document 1 is made of metal or plastic, these tools must be removed when disposing of the box after all the items have been removed from it. Recently, automation of warehouse management and transportation has progressed, and when a box becomes empty after its contents have been removed, the disposal of the empty box is also automated. When disposing of an empty box, the clips for the lid of the box body disclosed in Patent Document 1 require the automated process to be stopped temporarily and an operator to remove the clips for the lid from each of the four corners of the box one by one. This requires a great deal of effort and time as the number of boxes increases, and poses a problem of reducing the effectiveness of automation.

[0005] Furthermore, the clip for the lid of a box disclosed in Patent Document 1 has three legs attached to the four corners of the box. That is, when fixing one lid clip to one corner of a box, the worker must align the three legs of the lid clip and insert it into the desired corner while holding the two lids connected to the two side panels adjacent to that corner in a stacked state so that the opened lids do not return to their original positions. Therefore, the operation to fix the lid clip is complicated, making it difficult for a single worker to work smoothly and quickly, resulting in a problem of poor usability.

[0006] The present invention has been made to solve the above-mentioned problems in the prior art, and aims to provide a flap fixing jig that is easy to use and highly practical, which is a flap fixing jig that fixes the flaps of a paper box by overlapping them on the side panels, and which allows the flaps to be disposed of while still fixed to the box, thereby facilitating disposal and recycling processes, and which simplifies the operation of fixing the flaps. [Means for solving the problem]

[0007] In order to achieve the above object, the flap fixing jig according to the present invention has the following configuration: (1) A flap fixing jig for folding the flaps of a paper box outward and fixing them on the side panels, a plate-shaped main body; a cutout portion formed by cutting out a part of the main body; It consists of The main body is made of paper, The width of the opening of the notch is such that the side plate and the flap placed on the side plate can be inserted into the notch.

[0008] According to the above-mentioned (1) configuration of the flap fixing jig of the present invention, the flap stacked on the side plate can be inserted and fixed through the cutout portion, so that the fixing operation can be performed simply and quickly, and it is easy to use. Furthermore, because it is made entirely of paper, it can be disposed of or recycled without being removed from the box. As a result, post-processing such as disposal or recycling after items are removed from the box can be automated smoothly and efficiently, and there is no need for manual removal work, resulting in labor savings and efficiency.

[0009] In the above-mentioned configuration (1) of the flap fixing jig of the present invention, it is preferable to have the following configurations (2) to (6).

[0010] (2) The closed end of the cutout portion is rounded.

[0011] According to the preferred configuration of (2) above, even if the flap acts in a restoring direction so as to move away from the side panel while the flap is secured to the side panel of the box, the force is dispersed more effectively than when the closed end of the notch is polygonal, etc., so that the paper main body can be prevented from tearing. In other words, even though the main body is made of paper, high strength is achieved to prevent breakage, and as a result, a practical flap securing jig that can secure the flap well can be provided.

[0012] (3) In the configuration of (2) above, the notch has a tapered shape that narrows from the closed end toward the open end.

[0013] According to the preferred configuration (3) above, the flap placed on the side panel of the paper box can be effectively prevented from opening away from the side panel, and the flap can be reliably maintained in a fixed state.

[0014] (4) In the configuration of (1) above, the side of the main body that faces the open end of the notch is formed to extend flat in a direction perpendicular to the direction in which the notch extends.

[0015] According to the preferred configuration of (4) above, when stacking boxes, the side of the main body that faces the open end of the cutout extends flat in a direction perpendicular to the direction in which the cutout extends, so that the boxes on the lower and upper tiers can be stacked so that they are arranged almost straight.

[0016] (5) In the configuration of (1) above, a protrusion is provided at one location on the side of the main body that faces the open end of the notch.

[0017] According to the preferred configuration of (5) above, other paper boxes can be stacked on the upper side of the flap fixing jig that fixes the flaps of the paper box. In this case, the protrusion effectively prevents the other boxes on the upper level from shifting or falling, allowing for stable stacking. As a result, even when multiple boxes are stacked, stability and safety are high, and it is possible to prevent the boxes on the upper level from falling, damaging the boxes or their contents, or delaying work.

[0018] (6) In the configuration of (1) above, the main body is made of cardboard, and the width direction of the corrugations of the main body is the direction in which the notch extends.

[0019] According to the preferred configuration of (6) above, since cardboard has a higher compressive strength in the direction of the corrugations (width direction) than in the machine direction, when another box is stacked on top of a paper box with the flap fixing jig fixing the flaps of the box, the load capacity of the flap fixing jig can be increased, making it less likely to break. Furthermore, by making the entire box out of cardboard, it can be recycled without the need to separate it from other materials such as plastic and metal, and it can be processed together with the cardboard box that the flaps were fastened to, making disposal easy and of course recycling easy. [Effects of the Invention]

[0020] According to the present invention, a flap fixing jig can be provided that fixes the flaps of a paper box by stacking them on the side panels, and that can be disposed of while still fixed to the box, allowing for smooth disposal and recycling, while also simplifying the operation of fixing the flaps, making it easy to use and highly practical. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a front view showing the configuration of a flap fixing jig according to an embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a perspective view showing the configuration of the flap fixing jig of FIG. [Figure 3] 2 is a plan view showing the configuration of the flap fixing jig of FIG. 1. FIG. [Figure 4] 2 is a partially enlarged explanatory view showing the state in which the flap fixing jig of FIG. 1 is used. FIG. [Figure 5] FIG. 2 is a perspective explanatory view showing a state in which the flap fixing jig of FIG. 1 is used; [Figure 6] FIG. 2 is an explanatory plan view showing a state in which the flap fixing jig of FIG. 1 is used; [Figure 7] 2 is a perspective explanatory view showing the state in which the flap fixing jig of FIG. 1 is used and boxes are stacked one on top of the other. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be described in more detail below using preferred embodiments, but the following embodiments are merely examples of realizing the present invention and the present invention is not limited thereto.

[0023] [Configuration of flap fixing jig] First, the configuration of a flap fixing jig in one embodiment of the present invention will be described with reference to FIGS.

[0024] Figure 1 is a front view showing the overall configuration of a flap fixing jig in one embodiment of the present invention, Figure 2 is an oblique view showing the configuration of the flap fixing jig, Figure 3 is a plan view showing the configuration of the flap fixing jig, Figure 4 is a partially enlarged explanatory view showing the state in which a flap is fixed with the flap fixing jig and the state in which another box body is placed on top, Figure 5 is an oblique explanatory view showing the state in which the flap fixing jig is attached to a box, Figure 6 is a plan explanatory view showing the state in which the flap fixing jig is used, and Figure 7 is an oblique explanatory view showing the state in which the flap fixing jig is used and the state in which boxes are stacked.

[0025] As shown in FIGS. 1 to 4, the flap fixing jig 1 of this embodiment is a flap fixing jig for folding the flap 102 of a paper box 100 outward and fixing it on the side plate 101.

[0026] The paper box 100 for which the flap fixing jig is used is, for example, a well-known cubic cardboard box, as shown in Figures 5 and 6. Flaps 102 are rotatably connected to the upper and lower ends of four side panels 101, respectively, in the form of hinges. The box 100 is used as a hollow box-like package, with the four lower flaps closing to form a lid that opens and closes the upper side. With the upper flap 102 of the box 100 open, items can be put in and taken out with the top of the box open. In other words, the flag fixing jig 100 of this embodiment is suitable for use in fixing the flap 102 in a stacked position on the side wall 101 of the box 100 so that the open flap 102 does not return to its closing position, making it easier to perform tasks such as putting things in and taking things out with the upper flap 102 of the box open.

[0027] The flap fixing jig 1 comprises a paper body 2 and a cutout 3. The body 2 is formed in a plate shape. The cutout 3 is formed by cutting out a part of the plate-shaped body 2. Furthermore, as will be described later, a protrusion 4 is integrally formed on the body 2.

[0028] The main body 2 is made of, for example, double-layered reinforced corrugated cardboard (AA flute) and is formed into a flat plate with a uniform thickness. The size of the main body 2, excluding the protrusions 4, is, for example, a roughly square shape of 50 mm x 50 mm, and the thickness is, for example, 10 mm. In this embodiment, the flow direction W of the main body 2, in which the wavy irregularities of the cardboard are repeated alternately, is defined as the horizontal direction, and the width direction L of the corrugations perpendicular to the flow direction W, i.e., the paper width direction along the corrugations, is defined as the vertical direction. In Figure 2, the multiple long, vertically extending dashed lines conceptually represent the corrugations of a cardboard box.

[0029] 5 and 6, the main body 2 has a mounting end 2b on the side (the upper side in FIG. 1) opposite the open end 3a of the notch 3 so that another box 100U can be placed on it. Furthermore, adjacent to the mounting end 2b of the main body 2, a protrusion 4, which will be described later, is integrally provided.

[0030] The notch 3 is formed by cutting out a portion of the main body 2. For example, the notch 3 may be formed by forming an open end 3a at approximately the center of one side of the main body 2 (the bottom side in FIG. 1 ) so that it is open to the outside, and a cut of a predetermined width extending from the open end 3a toward the interior of the main body 2 forms a long opening, with a closed end 3b at approximately the center of the main body 2. That is, the notch 3 is formed as a cut opening such that the upper part of the main body 2 forms a connecting base 2c, and the lower part branches into two arms 2a arranged side by side. The main body 2 with the notch 3 formed has a rough outer shape of a U-shape with the opening facing downward (or an inverted U-shape). The notch 3 fixes the main body 2 to the side wall 101 of the box and a flap 102 superimposed on the side wall 101 in an attached state, engaging the flap. The notch 3 is formed with a predetermined length from the open end 3a to the closed end 3b so that the flap 102 placed on the side wall 101 can be inserted to a certain extent so that the flap fixing jig 1 can be sufficiently engaged with the side wall 101 and the flap 102 of the box 100. The length of the notch 3 in the notch direction from the open end 3a (i.e., the opening position in a straight line with the lower side of the main body) to the innermost part of the closed end 3b is set to, for example, 32 mm. The longer the length of the cutout 3 in the cutout direction, the stronger the fixing effect of the flap 102, but if it is too long, it will reduce the ease of attachment to the flap 102. Therefore, taking workability into consideration, the length of the cutout 3 is preferably 20 mm to 40 mm, and more preferably 30 mm to 35 mm. Naturally, if the cutout 3 is made longer, the size of the flap fixing jig 1 body will need to be increased accordingly. Therefore, in order to save resources required for the body material and reduce costs, it is preferable to make the cutout 3 as short (shallow) as possible within the length (depth) required to fix the flap 102 in the overlapping direction to the side panel 101.

[0031] The width of the opening of the cutout 3 is set to a length that allows the insertion of the side panel 101 of the box 100 and the flap 102 overlapping the side panel 101. In other words, the opening width of the cutout 3 is set to be slightly larger than the sum of the thickness of the side panel 101 of the box and the thickness of the flap 102.

[0032] Furthermore, the notch 3 is formed along the width direction L, i.e., the vertical direction (paper width direction), of the corrugated cardboard body 2. In other words, the extension direction of the notch 3 is set along the width direction L of the corrugated cardboard body 2. With this configuration, the main body 2 can have a higher compressive strength in the vertical direction compared to when the extending direction of the notches 3 is the flow direction W. Therefore, as shown in Figures 4 and 7, when the flap fixing jig 1 is installed to fix the flap 102 of the box 100 and another box 100 is placed in a stacked state above the main body of the flap fixing jig 1, the main body 2 has a relatively large load-bearing capacity and is less likely to break.

[0033] The closed end 3b of the cutout 3 is provided in a rounded shape, with a portion thereof being rounded to form an approximately arc. The rounded closed end 3b is formed as an arc with a radius of, for example, 3 to 10 mm, preferably 5 mm. The circumferential angle of the arc-shaped portion constituting this round shape is, for example, 60° to 120°, preferably 75° to 90°. With this configuration, even if the flap 102 acts in a direction to restore itself so as to move away from the side panel 101 when fixed to the flap superimposed on the side panel of the box, the force acting in the pulling direction at the closed end 3b is dispersed rather than concentrated in one place, making it less likely to break, and tearing of the paper main body 2 can be effectively prevented.

[0034] Furthermore, the shape of the notch 3 is tapered so that it gradually narrows from the closed end 3b toward the open end 3a. That is, the notch 3 has a maximum opening width at the diameter of the arc-shaped part of the rounded closed end 3b, and forms an inverted V-shaped tapered portion facing downward toward the open end 3a. This configuration effectively prevents the flaps placed on the side panels of the paper box from opening as if trying to separate from the side panels, and prevents the flap fixing jig from suddenly coming off as the flaps open, thereby reliably maintaining the fixed state of the flaps. In this embodiment, both ends of the open end 3a of the cutout 3 are chamfered to form a reverse tapered portion 3d that widens in the opposite direction to the tapered shape. Because the cutout 3 of the lap fastening jig 1 has a reverse tapered portion 3d that widens toward the open end, the lap fastening jig 1 can be easily inserted from the bent position of the flap 102 and side panel 101 of the box 100, and is guided along the reverse tapered portion 3d to the center of the cutout 3, improving workability. Of course, the reverse tapered portion 3d may not be provided, and the tapered portion 3c may be extended directly and connected to the bottom side.

[0035] The protrusion 4 is provided at one location on the side of the main body 2 opposite the open end 3a of the notch 3. The protrusion 4 is provided at the upper end of the main body 2 opposite the open end 3a of the notch, at a position closer to the left (or right) side, protruding upward at a predetermined height. That is, the protrusion 4 is integrally provided on either the left or right side (only one side) of the notch 3 of the main body 2, so as to protrude toward the edge of the side opposite the open end 3a of the notch 3. Furthermore, the edge on the side where the protrusion 4 is not provided extends flat in a direction perpendicular to the extension direction of the notch 3, forming a state without undulations (protrusions), thereby forming the mounting end 2b. Therefore, the overall outline shape of the main body 2 including the protrusion 4 and the flap fixing jig 1 with the notch 3 formed thereon is generally U-shaped with the opening facing downward. The protrusions 4 are arranged on the outer side when the flap fixing jig 1 is attached to the box 100 to fix the flap 102 of the box. The protrusion 4 has a protruding width from the mounting end 2b on the upper end side of the main body 2 set to, for example, 15 mm. The protrusion 4 is formed, for example, in a substantially trapezoidal (or substantially triangular) shape, with its base connected to the upper end of the main body 2 and protruding above the mounting end 2b on the upper side of the main body 2. Specifically, one side (the left side in FIG. 1 ) of the protrusion 4 is aligned with the vertical side of the main body 2. The right side of the protrusion 4 is formed with an inclined portion 4a that slopes downward toward the mounting end 2b of the main body 2. The inclined portion 4a of the protrusion 4 is set, for example, at a 45-degree incline, with the mounting end 2b being set at 0 degrees. Furthermore, the protruding position of the protrusion 4 on the upper side of the main body 2, i.e., the connecting position between the inclined portion 4a of the protrusion 4 and the mounting end 2b of the main body 2, is set at approximately the center of the upper side of the main body 2, so as to be approximately directly above the opening end 3b of the notch 3. With this configuration, with the flap fixing jig 1 attached to the box 100, multiple boxes can be stacked for storage, and the protrusions 4 can reliably prevent the upper boxes from shifting or falling when stacked. As a result, the boxes, the items stored in the boxes, and the workers can be protected. Furthermore, by providing the protrusion 4 with an inclined portion 4a that slopes downward toward the mounting end 2b of the main body 2, when stacking other boxes above the flap fixing jig 1, it is easier to position the box 100U compared to a vertically arranged shape, thereby improving the workability, reliability, and safety of the stacking operation. Furthermore, the protruding position of the protrusion 4, i.e., the connection position between the inclined portion 4a of the protrusion 4 and the mounting end portion 2b of the main body 2, is located in the vicinity of directly above the position of the notch 3, so that when stacking boxes, the boxes on the lower tier and the boxes on the upper tier can be stacked so that they are arranged almost straight.

[0036] When using the flap fixing jig 1 according to this embodiment, one flap fixing jig 1 is used to fix each of the four flaps of the box 100. To attach the flap fixing jig 1, the flap 102 of the box 100 is placed over the side edge 101, the notch 3 cut into the main body 2 is aligned, and the flap fixing jig 1 is inserted from the open end 3a of the notch 3 until the connection between the flap 102 and the side panel 101 abuts or is close to the closed end 3b. At this time, the mounting end 2b of the main body 2 is positioned facing the inside of the box 100 so that the protrusion 4 faces the outside of the box 100. As shown in FIGS. 5 and 6 , the four flap fixing jigs 1 are positioned with the plate surfaces of the respective main body 2 standing upright. 6, the plate surfaces of the main body parts 2 of adjacent flap fixing jigs 1 are rotated by 90 degrees from each other, i.e., when viewed along the opposing sides of the side panels of the box 100, the plate surfaces of the main body parts 2 of the flap fixing jigs 1 extend in approximately the same direction, but are positioned in point symmetry with respect to the center of the side panel 101 and the box 100. In this way, the flap fixing jig 1 is set to fix, for example, one flap 102 at a position closer to the end of the side wall 101, i.e., at one location closer to the corner of the box. 4 and 7, when multiple boxes are stacked in tiers with the flap fixing jigs 1 attached to the boxes 100 as described above, the upper box 100 is placed from above the flap fixing jig 1. The placement ends 2b on the upper ends of the main body parts 2 of the four flap fixing jigs 1 and the protrusions 4 work together to allow the upper box to be placed stably.

[0037] The dimensions and materials of each member of the flap fixing jig 1 described above are merely examples, and the dimensions and materials of each member may be changed depending on the size of the box, the environment in which it is used, and so on. [Explanation of symbols]

[0038] 1 Flap fixing jig 2 Main body 3 Cutout 4 Protrusion

Claims

1. A flap fixing jig for folding the flaps of a paper box outward and fixing them on the side panels, A plate-shaped main body; a cutout portion formed by cutting out a part of the main body; It consists of A flap fixing jig characterized in that the main body is made of paper and the width of the opening of the cutout is long enough to allow the side plate and the flap stacked on the side plate to be inserted into the cutout.

2. The flap fixing jig of claim 1, A flap fixing jig characterized in that the closed end of the notch is rounded.

3. The flap fixing jig of claim 2, The flap fixing jig is characterized in that the shape of the notch is tapered, narrowing from the closed end toward the open end.

4. The flap fixing jig of claim 1, A flap fixing jig, characterized in that the side of the main body portion facing the open end of the cutout portion is formed to extend flat in a direction perpendicular to the direction in which the cutout portion extends.

5. The flap fixing jig of claim 1, A flap fixing jig characterized in that a protrusion is provided at one location on the side of the main body portion opposite the open end of the notch portion.

6. The flap fixing jig of claim 1 The main body is made of cardboard, A flap fixing jig, characterized in that the width direction of the step of the main body portion is the direction in which the notch portion extends.

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