Handle packing box

Abstract

To provide a packaging box with a handle, which has an extremely simple structure and can prevent an upper opening / closing door from dropping by locking the upper opening / closing door with a handle piece of a box body when putting a commodity into or taking it out of the box body. [Solution] The packaging box A with handle is a box body in which an upper opening / closing door 7, a lower opening / closing door 8, a right flap 9 and a left flap 10 that close the openings 6 at the front and rear of a horizontally facing rectangular cylindrical body 5 consisting of a quadrilateral top panel 1, a bottom panel 2 and a right panel 3 and a left panel 4 that connect these panels are folded and stacked, and the locking protrusions 11 at the tip of each upper opening / closing door 7 are inserted into the locking cut-out holes 12 of each lower opening / closing door 8 to close the openings 6. The top panel 1 has a handle piece 13 that can be raised, and when the upper opening / closing door 7 is opened and folded upward on the top panel 1, the locking protrusions 11 can be freely raised and held by the handle piece 13 that has been raised on the top panel 1.

Description

[Technical Field]

[0001] This invention relates to a packaging box with a handle that can easily lock the opening door of the opening to secure the opening when putting in or taking out products stored in the packaging box. [Background technology]

[0002] BACKGROUND ART Conventionally, there have been packaging boxes that contain cakes or the like inside and are carried by lifting up a handle on the top panel and inserting one's hand into the handle.

[0003] For example, the one in Non-Patent Document 1 is almost the same as the box shown in Figure 8, and as shown in Figure 8, it is a box body made up of a horizontally oriented square cylindrical body 5 consisting of a quadrilateral top plate 1, a bottom plate 2, and a right side plate 3 and a left side plate 4 connecting them, and an upper opening / closing door 7, a lower opening / closing door 8, a right flap 9 and a left flap 10 that close the front and rear openings 6 are folded and stacked, and a locking protrusion 11 at the tip of the upper opening / closing door 7 is inserted into a locking cutout hole 12 in the lower opening / closing door 8 to close the openings 6, and it is a packaging box B with handles that has two handles 13, 13 that can be raised freely in the center of the top plate 1.

[0004] This packaging box B with handles can be carried by removing the locking protrusion piece 11 of the upper opening / closing door 7 from the locking cut-out hole 12 of the lower opening / closing door 8, opening the upper opening / closing door 7, the lower opening / closing door 8, the right flap 9 and the left flap 10, opening the opening 6 and storing a product such as a cake inside the packaging box B, and then closing the opening 6 and inserting your hands into the handle pieces 13, 13 to carry the packaging box B. [Prior art documents] [Patent documents]

[0005] [Non-Patent Document 1] Printout of the "Carry Deco" product introduction article from the online retailer "Monotaro" (dated May 23, 2025) DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0006] In the case of Non-Patent Document 1 and the one shown in Figure 8, when putting in or taking out a stored product such as a cake, the upper opening door 7, lower opening door 8, right flap 9, and left flap 10 are opened to open the opening 6, and the product is put in or taken out, but if the box including the upper opening door 7 etc. is made of cardboard, it will try to return to its original shape due to its elasticity, and the upper opening door 7 in particular will fall down during putting in or taking out the product unless it is held down by hand due to gravity, and will come into contact with the product. If the product is a confectionery product such as a cake, there is a risk that the upper opening door 7 will come into contact with the cake and damage the cake's decorations.

[0007] Therefore, in order to solve the above problems, this invention aims to provide a packaging box with a handle that has an extremely simple structure, but can engage the upper opening and closing door with the handle piece of the box body when putting products inside and taking them out, so that the upper opening and closing door does not fall down unnecessarily. [Means for solving the problem]

[0008] The invention of claim 1 is a packaging box with a handle, which is a box body in which an upper opening / closing door, a lower opening / closing door, a right flap and a left flap that close the front and rear openings of a horizontally oriented rectangular cylindrical body consisting of a quadrilateral top plate, a bottom plate and right and left plates connecting them are folded and stacked, and the openings are closed by inserting locking protrusions on the tip of each upper opening / closing door into locking cutout holes on each lower opening / closing door, and the box body has a handle piece that can be raised on the top plate, and when the upper opening / closing door is opened and folded upward on the top plate, the locking protrusion piece can be freely held by the handle piece that has been raised on the top plate.

[0009] The invention of claim 2 is a packaging box with a handle as described in claim 1, in which the locking protrusion is configured to be freely locked to the handle by forming a notch in the locking protrusion toward the tip of the locking protrusion and providing a tongue surrounded by the notch, and by providing a downward curved convex portion on the lower side of the grip portion of the handle, so that when the upper opening / closing door is opened and bent upward on the top plate, the locking protrusion is valley folded and the tongue protrudes behind the locking protrusion, and can be locked to the downward curved convex portion of the handle standing on the top plate.

[0010] The invention of claim 3 is a packaging box with handles as described in claim 1 or 2, in which the right and left flaps are each provided with insertion holes that can freely engage the corners of both ends of the lower opening and closing door, and when closing the opening of the box body, the right and left flaps are closed and the lower opening and closing door is placed on top of them, and the corners of both ends of the lower opening and closing door are inserted into the respective insertion holes of the right and left flaps and can be freely engaged. [Effects of the Invention]

[0011] According to the invention of claim 1, when putting products in or taking products out of the box, when the upper opening door is opened and the top plate is folded upward, the locking protrusion can be locked to the handle piece standing on the top plate, so products can be smoothly put in or taken out of the box with the right flap, left flap and lower opening door open. Also, after the products are inside, the locking protrusion can be easily detached from the handle piece, which is convenient.

[0012] Furthermore, according to the invention of claim 2, when the upper opening and closing door is opened and bent upward on the top plate, the tongue piece is hooked onto the downward convex portion of the handle piece that is erected on the top plate, thereby locking the upper opening and closing door, preventing it from moving unnecessarily and more reliably maintaining the opening in an open position.

[0013] Furthermore, according to the invention of claim 3, when closing the opening of the box body, the right and left flaps are closed and the lower opening and closing door is placed on top of them, and the corners on both ends of the lower opening and closing door are inserted into the respective insertion holes of the right and left flaps and engaged, thereby preventing the opening from bulging and providing strength against the twisting force of the box body. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a packaging box with a handle according to a first embodiment of the present invention, in which one opening of the box body is closed and the other opening is open and the upper opening door is engaged with the handle piece. FIG. [Figure 2] 1 is a development view of a backing sheet of a packaging box with a handle according to a first embodiment of the present invention. FIG. [Figure 3] 1 is a perspective view of a packaging box with a handle according to a first embodiment of the present invention, with both openings open, one of the upper opening / closing doors folded upward, and the locking projection folded backward; FIG. [Figure 4] This is an oblique view of a packaging box with a handle according to a first embodiment of the present invention, with one opening closed and the other opening open, the upper opening door folded onto the top plate, the locking protrusion folded in a valley, and one handle piece on the top plate raised. [Figure 5] 1 is a vertical cross-sectional view of a packaging box with a handle according to a first embodiment of the present invention, in which one opening of the box body is closed and the other opening is open and the upper opening door is engaged with the handle piece. FIG. [Figure 6] FIG. 1 is an oblique view of a packaging box with a handle according to a first embodiment of the present invention, in which one opening of the box body is closed, the other opening is opened, the upper opening door is engaged with the handle piece, the right and left flaps are closed, and the lower opening door is bent and raised from above, with both end corners inserted into the insertion holes of the right and left flaps and engaged. [Figure 7] 1 is a perspective view of a state in which both openings of a box body of a packaging box with a handle according to a first embodiment of the present invention are closed and the locking projection pieces of the upper opening / closing door are inserted into the locking holes of the lower opening / closing door. FIG. [Figure 8]FIG. 1 is a perspective view of a conventional packaging box with a handle, with one opening closed and the other opening open. DETAILED DESCRIPTION OF THE INVENTION

[0015] (Embodiment Example 1) A packaging box A with a handle according to a first embodiment of the present invention will be described with reference to the drawings.

[0016] The structure of this packaging box A with a handle will be explained based on the developed cardboard view of Fig. 2. The packaging box A with a handle has a right side panel 3 connected to one of the left and right sides (left and right direction in Fig. 2) of a quadrilateral top panel 1 via a fold line, and a bottom panel 2 connected to one side of the right side panel 3 via a fold line, and a left side panel 4 connected to the other left or right side of the top panel 1 via a fold line, and a glue tab 14 is provided on the other side of the left side panel 4.

[0017] Upper doors 7, 7 are attached to the front and rear edges (top and bottom edges in Fig. 2) of the top panel 1 via folds, and lower doors 8, 8 are attached to the front and rear edges (top and bottom edges in Fig. 2) of the bottom panel 2 via folds. Right flaps 9, 9 are attached to the front and rear edges (top and bottom edges in Fig. 2) of the right side panel 3, and left flaps 10, 10 are attached to the front and rear edges (top and bottom edges in Fig. 2) of the left side panel 4.

[0018] A flat triangular locking projection 11 with a narrowed base is provided at the center of the leading edge (top and bottom edges in Fig. 2) of each of the upper opening / closing doors 7, and a locking cutout hole 12 is provided at the center of each of the lower opening / closing doors 8, into which each of the locking projections 11 can be inserted and locked. Two handles 13, 13 formed by concentric double semicircular cutouts 15, 15 are provided facing each other at the center of the top plate 1, and can be raised freely by folding lines.

[0019] Furthermore, a substantially semicircular arc-shaped notch 16 is provided from the crease at the boundary between each locking protrusion 11 and the upper opening / closing door 7 toward the tip of each locking protrusion 11, and a tongue piece 17 is provided surrounded by this notch 16. Furthermore, a downwardly curved convex portion 13a is provided at the bottom of the grip portion of each handle piece 13. Since each handle piece 13 is formed by double substantially semicircular arc-shaped notches 15, 15 that are concentric with the top plate 1, when each handle piece 13 is raised, a hole of the same shape as each handle piece 13 is made in the top plate 1, but a transparent film is attached to the underside of the top plate 1.

[0020] Further, the right flap 9 and the left flap 10 are provided with insertion holes 18, 18 obliquely, into which the corners of both ends of the lower opening / closing door 8 can be inserted and locked.

[0021] 3, this flat, mount-like packaging box A with handles is made by folding the right and left side panels 3 and 4 at right angles along the creases on the left and right sides of the top panel 1, and then folding the bottom panel 2 from the crease at the lower end of the right panel 3 so that it faces the top panel 1, and attaching the adhesive margin 14 at the folded lower end of the left panel 4 to the upper surface of one end of the bottom panel 2. This forms a rectangular tubular body 5.

[0022] Thereafter, one of the openings 6 is closed by first folding the right flap 9 and the left flap 10 inward, and then folding the lower opening door 8 to cover these right flap 9 and left flaps 10. At this time, just as in Figure 6 for the explanation of the other opening 6, both end corners of the lower opening door 8 are inserted into the respective insertion holes 18 of the right flap 9 and the left flap 10.

[0023] When placing a product such as a cake into the packaging box A through the other opening 6, the upper door 7, which has been folded onto the top plate 1 along the crease to open the opening 6, is locked in the open position to prevent it from descending. To do this, as shown in FIG. 4, the locking projection 11 of the upper door 7, which has been folded up onto the top plate 1, is folded back at the crease at the boundary between the upper door 7 and the new door, so that the tongue 17 protrudes from the semicircular notch 16 behind the locking projection 11. The handle 13 on the upper door 7 side is then raised, and the tongue 17 is hooked onto the downward curved protrusion 13a of the handle 13. At this time, the locking projection 11 and the grip of the handle 13 overlap. This locks the upper door 7 to the handle 13, preventing it from descending unnecessarily. This state is shown in FIGS. 1 and 5.

[0024] In this state, the right flap 9 and the left flap 10 are opened to the left and right, the product is placed on the lower opening and closing door 8, and the product is then placed in the packaging box A with handle.

[0025] Thereafter, the right flap 9 and the left flap 10 are folded inward, and the lower opening / closing door 8 is folded and placed on top of the right flap 9 and the left flap 10, and both end corners of the lower opening / closing door 8 are inserted into the insertion holes 18 of the right flap 9 and the left flap 10 as shown in FIG.

[0026] When the handle piece 13 is pushed backward, the tongue piece 17 of the upper opening / closing door 7 disengages from the downward curved convex portion 13a of the handle piece 13, and the upper opening / closing door 7 is rotated and lowered so that its lower end is placed on the lower opening / closing door 8, and the locking protrusion piece 11 is inserted into the locking cutout hole 12 of the lower opening / closing door 8 to lock it. As a result, as shown in Figure 7, the packaging box A with handles is closed, and the two handle pieces 13 can be held by hand and carried.

[0027] Furthermore, when removing a product from the packaging box A with handle, the upper opening / closing door 7, the lower opening / closing door 8, the right flap 9 and the left flap 10 are opened in the reverse order to the above, and the tongue piece 17 of the locking protrusion piece 11 of the upper opening / closing door 7 is locked with the downward curved convex portion 13a of the handle piece 13, and then the product is removed.

[0028] In this way, with the packaging box A with handle, the locking protrusion 11 of the upper opening / closing door 7 can be locked with the handle piece 13 when putting in or taking out a product, so that products such as decorated cakes can be put in or taken out without coming into contact with the upper opening / closing door 7, and the locking and unlocking can be easily performed.

[0029] In the first embodiment, the tongue 17 is provided on the locking projection 11 by the semicircular notch 16, and the tongue 17 is configured to lock onto the downward curved convex portion 13a of the grip portion of the handle piece 13, but the structure for locking the locking projection 11 to the handle piece 13 is not limited to this structure. Also, although the semicircular notch 16 is provided on the locking projection 11, this notch is not limited to a semicircular shape, and may be a notch of another shape, such as a notch with three sides of a square. [Explanation of symbols]

[0030] A Packaging box with handle B. Conventional packaging box with handle 1 Top plate 2 Bottom plate 3 Right side plate 4 Left side plate 5 Square tube 6 Opening 7 Upper opening door 8 Lower opening door 9 Right flap 10 Left flap 11 Locking protrusion 12 Locking notch hole 13 Handle piece 13a Downward curved convex portion 14 Glue allowance 15 Cut 16 Semicircular arc notch 17 Tongue 18 Insertion hole

Claims

1. A packaging box with a handle is provided, which has an upper opening / closing door, a lower opening / closing door, a right flap, and a left flap that close the front and rear openings of a horizontally oriented rectangular cylindrical body consisting of a quadrilateral top plate, a bottom plate, and right and left plates connecting them, and which is folded and stacked, and which closes the openings by inserting locking protrusions on the tip of each upper opening / closing door into locking cutout holes in each lower opening / closing door, and which has a handle that can be raised on the top plate, characterized in that when the upper opening / closing door is opened and folded upward on the top plate, the locking protrusions can be held by the handle that has been raised on the top plate.

2. 2. The packaging box with handle according to claim 1, wherein the locking protrusion is configured to be freely locked to the handle by forming a notch in the locking protrusion toward the tip of the locking protrusion, providing a tongue surrounded by the notch, and providing a downwardly curved convex portion on the lower edge of the grip portion of the handle, so that when the upper opening / closing door is opened and bent upward on the top plate, the locking protrusion is valley-folded to cause the tongue to protrude behind the locking protrusion, and the tongue can be locked to the downwardly curved convex portion of the handle standing on the top plate.

3. 3. The packaging box with handles according to claim 1, wherein the right and left flaps are each provided with insertion holes that can freely engage corners of both ends of the lower opening and closing door, and when the opening of the box body is closed, the right and left flaps are closed and the lower opening and closing door is placed on top of them, and the corners of both ends of the lower opening and closing door are inserted into the respective insertion holes of the right and left flaps and can be freely engaged.

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