JP3228133U - Double door box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double-door box in which a left side plate and a right side plate of a storage box portion can be reinforced from behind by a confronting portion of a strip-shaped packaging box portion. SOLUTION: A storage box portion 17 having a bottom plate 11 and four side plates 12 to 15 on the front, back, left and right, and a bottom plate 11 and a left side plate excluding the left and right lid plates 19 and 20 at both ends in the length direction. A horizontally long strip-shaped packaging box portion 18 fixed to each outer surface of 14 and the right side plate 15 in a series is provided, and a storage box portion 17 is provided on each inner surface of the left and right lid plates 19 and 20 with the tip edges abutted. This is a double-door box 10 in which the left and right inner layer plates 32 and 34 fitted in the opening a of the above are fixed to each other, and the lid closing protrusion 31 and the lid closing gap 33 are fitted in a butt state to close the lid. [Selection diagram] Fig. 1

Description

The present invention relates to a double-door box, which is a box body provided with a double-door lid.

Conventionally, as a box body having a double-door lid, for example, the one described in Patent Document 1 is known.
The double-door box of Patent Document 1 has a bottom plate and four left and right side plates, and only a storage box portion whose upper surface is open to store stored items and an intermediate portion in the length direction are adhered to the outer surface of the bottom plate. In addition, both ends in the length direction were provided with a horizontally long strip-shaped packaging box portion having a double-door lid composed of a left lid plate and a right lid plate that close the opening on the upper surface of the storage box portion.

At this time, a lid closing protrusion is formed at one tip of the left and right lid plates, and a lid closing gap into which the lid closing protrusion can be inserted at the other end of the left and right lid plates. Is formed.
As a result, in the conventional box of Patent Document 1, the opening of the storage box can be covered with the tip of one of the left and right lid plates inserted into the tip of the other lid plate. A double door box can be provided.
In addition, in the middle part of the storage box part in the length direction (box width direction) between the left side plate and the right side plate, for example, a stand whose lower side is shorter than the upper side so that documents in the storage box part can be easily taken out with both hands. Large, shaped notches were formed.

Utility Model Registration No. 3134935

However, in the double-door box of Patent Document 1, as described above, the only portion of the storage box portion that is reinforced by adhering the strip-shaped packaging box portion is the bottom plate. Therefore, when the double-door lid is opened and closed with both hands, the portion of the strip-shaped packaging box that faces the left side plate and the right side plate also undulates along with the corresponding lid plate. That is, no reinforcing means was provided on the left side plate and the right side plate, which the hands easily collide with when opening and closing the lid.
Not only that, these left and right plates had large notches formed in the middle of each length direction. Therefore, when the lid is opened and closed, the damage to the left and right plates, which are easily hit by the above-mentioned hands, tends to be large.

In the present invention, the ship is regarded as such a conventional problem, and the storage box is in a sealed state in which the tip of one of the left and right lid plates is inserted into the tip of the other lid plate. To provide a double-door box in which the opening of the portion can be covered and the left side plate and the right side plate of the storage box portion can be firmly reinforced from behind by the confronting portion of the strip-shaped packaging box portion. I am aiming.

The present invention according to claim 1 has a bottom plate and four side plates on the front, back, left and right sides, and a storage box portion having an open upper surface for storing stored items and a portion excluding both ends in the length direction. From the left lid plate and the right lid plate, which are fixed in series to the outer surfaces of the bottom plate, the left side plate, and the right side plate, and the remaining both ends in the length direction close the opening on the upper surface of the storage box portion. It is a double-opening type box provided with a horizontally long strip-shaped packaging box portion that serves as a double-sided lid, and the storage box is provided with the tip edges of the left lid plate and the right lid plate abutting each other. Of the left inner layer plate and the right inner layer plate fitted into the opening of the portion, the corresponding one is fixed, and the tip of either the left lid plate or the right lid plate has a lid closing protrusion. Between the tip of the other of the left lid plate and the right lid plate, and the tip of any of the left inner layer plate and the right inner layer plate fixed to the other one, It is a double-door box characterized in that a gap for closing the lid is formed so that the protrusion for closing the lid can be inserted and removed.

The material of the double-door box (storage box portion and strip-shaped packaging box portion) is arbitrary. For example, various paper materials, various synthetic resin materials, various metal materials, and the like can be adopted. Of these, the paper material has more prominent features of the present invention.
The paper material may be any material that can exhibit the desired strength when it is made into a box. For example, the central portion may be a ball or paperboard, and a decorative paper may be adhered to the surface thereof.

The thickness of the material of the double-door box is arbitrary, but varies depending on the physical properties such as hardness, flexibility, and strength of the material and the size of the box. When the material is paper, especially cardboard, the size of the box is 20 cm to 30 cm in length and width, 5 cm to 20 cm in height, and the thickness is 1.5 mm to 2.5 mm when cosmetics etc. can be accommodated. The degree is preferable.

In the present invention, all parts of the box may be made of the same material, but the material may be partially changed. For example, the left and right inner layer plates may be synthetic resin plates, and the strip-shaped packaging box portion may be cardboard. Or vice versa.

The type of storage is arbitrary. For example, high-class alcoholic beverages, electric appliances, cosmetics, ornaments, jewelry, various interior accessories, and the like can be adopted. In addition, CDs, DVDs, MOs, tape cassettes, digital tape cassettes, video tapes, computers, chocolates, cookies, sweets such as senbei and buns, and fruits such as buns may be used.
The method of fixing the storage box portion and the strip-shaped packaging box portion is arbitrary. For example, heat fusion by adhesion or hot melt can be adopted.
The portion of the storage box portion to be fixed to the strip-shaped packaging box portion includes not only the bottom plate but also the left side plate and the right side plate.

Here, "the left inner layer plate and the right inner layer plate are fitted into the opening of the storage box with their tip edges abutted against each other" means that the left inner layer plate and the right inner layer plate with the tip edges abutted against each other. It means that the surface size and shape of the storage box are almost the same as the opening size and shape of the opening of the storage box.
The shape and size of the lid closing protrusion and the lid closing gap are arbitrary as long as the lid closing protrusion can be inserted into and removed from the lid closing gap. For example, the degree of fitting of these can be adjusted by appropriately changing the thickness of the lid closing protrusion and the interval of the lid closing gap. If the protrusion for closing the lid has a long protrusion length, it is difficult to insert the lid into the gap for closing the lid, and if the protrusion length is short, the double-door lid easily opens.

Further, in the present invention according to claim 2, a panel tip portion is used for closing the lid on the outer surface of the tip portion of the left lid plate and the right lid plate on which the gap for closing the lid is formed. It projects in the direction of the protrusion and serves as an insertion guide when the lid closing protrusion is inserted into the lid closing gap, and after closing the lid, the base of the lid closing guide panel that serves as a lid retainer for the double-door lid is fixed. The double-door box according to claim 1, wherein the box is characterized by the above.

The material of the lid closing guide panel is arbitrary as long as it is a hard material. For example, various types of paper, various metals, and various synthetic resins may be used.
The shape of the lid closing guide panel is not limited. For example, it may be a polygon having a triangle or more including a quadrangle, a circle, or an ellipse.
The size of the lid closing guide panel is also arbitrary. For example, when this panel is quadrangular, the length of the tip edge of the left lid plate (right lid plate) is preferably one-fourth to one-half in both vertical and horizontal directions. If it is less than one-fourth, the lid closing guide panel is too small, and when the lid closing protrusion is guided to the lid closing gap at the time of closing the lid, the lid closing protrusion tends to fluctuate. If it exceeds half, the lid closing guide panel is too large and it is difficult to open and close the double lid.

Specifically, when the length of the tip of each lid plate is 20 cm, the length and width of the lid closing guide panel are 5 cm to 10 cm, preferably about 6.7 mm.
A particularly preferable vertical and horizontal size of the lid closing guide panel is about one-third of the length of the tip edge of the left lid plate.
The length and width of the lid closing guide panel may be the same length or different lengths.
Further, the thickness of the lid closing guide panel may be the same over the entire length or may be partially different.

According to the third aspect of the present invention, the strip-shaped packaging box portion has a uniform thickness over the entire length, and the lid closing protrusion has a thickness of less than half the thickness of the strip-shaped packaging box portion. The entire outer surface of the lid closing protrusion is removed, and the lid closing gap is the entire inner surface of the tip portion of the left lid plate and the right lid plate on which the lid closing gap is formed. By removing the lid so that the gap for closing the lid is narrower than the thickness of the protrusion for closing the lid, the removed tip portion and the tip portion of the corresponding one of the left inner layer plate and the right inner layer plate. The lid closing guide panel is formed so that the thickness of the panel tip portion is larger than that of the panel base portion and the thickness of the lid closing protrusion is larger than the distance of the lid closing gap. The double-door box according to claim 1 or 2, characterized in that it is thickened by the amount.

The thickness for removing the entire outer surface of the lid closing protrusion is not limited as long as it is less than half the thickness of the band-shaped packaging box portion. For example, it may be 20% to 45% of the thickness of the strip-shaped packaging box portion.
The phrase "the thickness of the panel tip is made thicker than the panel base by the thickness of the lid closing protrusion is larger than the distance of the lid closing gap" means the thickness of the base of the lid closing guide panel. Rather, the thickness of the tip of the lid closing guide panel is larger than the distance of the lid closing gap (length, width, thickness). Minutes) means to make it thicker.

According to the fourth aspect of the present invention, the left lid plate and the right lid plate are two-layer type in which an outer plate and an inner plate are bonded to each other, and the lid closing protrusion is the left lid plate. And the right lid plate, which was obtained by cutting off the outer plate at the tip of the one on which the lid closing protrusion is formed, and the lid closing gap is the left lid plate and the right lid. The double-door box according to claim 3, wherein the inner plate of the plate at the tip of which the gap for closing the lid is formed is cut off.

The material of the outer plate and the inner plate is arbitrary. For example, various paper materials, various synthetic resin materials, and various metal materials may be used.
Further, the outer plate and the inner plate may be made of the same material or different materials.

In the present invention according to claim 5, each forming region of the lid closing protrusion and the lid closing gap is the entire area or one of the corresponding tip portions of the left lid plate and the right lid plate. The first to fourth aspects of the invention, wherein each shape of the lid closing protrusion and the lid closing gap is any one of a rectangular shape, a trapezoidal shape, and a tongue piece shape. Of these, the double-door box according to any one item.

The region where the lid closing protrusion is formed may be the entire area or a part of the "tip of the left lid plate" or the "tip of the right lid plate" on which the protrusion is formed.
On the other hand, the region where the lid closing gap is formed may be the entire area or a part of the "tip of the left lid plate" or the "tip of the right lid plate" in which the gap is formed.
The shape of the lid closing protrusion and the lid closing gap may be rectangular or trapezoidal, respectively. Alternatively, it may be in the shape of a tongue piece.

According to the invention according to claim 1, when the lid is closed, the lid closing protrusion of one of the left and right lid plates is inserted into and removed from the lid closing gap of the other lid plate. , The top opening of the storage box can be closed.
Further, when the lid is closed, the left inner layer plate and the right inner layer plate are apparently fitted into the opening of the storage box in the state of a large single plate in which the tip edges of each other are butted against each other. The closed state of the opening of the storage box is firmly maintained. Therefore, even if a hand or an obstacle collides with the closed double-door lid, or even if the empty double-door box is turned upside down, the lid cannot be easily opened.
In addition, the magnet used to open and close the lid of the double-door box is no longer required.

Further, in the storage box portion, the portion where the confronting portion of the strip-shaped packaging box portion is fixed and reinforced includes not only the bottom plate but also the left and right plates. Therefore, unlike the conventional box, the strip-shaped packaging box portion facing the left and right plates does not undulate as the left and right lid plates are opened and closed, and the left and right plates are the strip-shaped packaging box portions. The confrontation part is firmly reinforced from the outside.
As a result, when the double-sided lid is opened and closed, even if the hand moving the left and right lid plates collides with the left and right lid plates, they are not easily damaged.

In particular, according to the present invention according to claim 2, the base portion of the lid closing guide panel is fixed to the outer surface of the tip portion of the left lid plate and the right lid plate on which the lid closing gap is formed. When the lid is closed, the lid closing guide panel serves as an insertion guide when the lid closing protrusion is inserted into the lid closing gap, and after the lid is closed, this serves as a lid retainer for the double-door lid.

Further, according to the third aspect of the present invention, in the case of the double-door lid, the entire outer surface of the lid closing protrusion is removed by a thickness of less than half the thickness of the band-shaped packaging box portion, while the lid is closed. The entire inside of the tip of the lid plate on which the lid gap is formed is removed so that the lid closing gap is narrower than the thickness of the lid closing protrusion.

Therefore, when the lid closing protrusion is fitted into the lid closing gap, the outer surface of the lid plate on the lid closing gap side is higher than the outer surface of the lid plate on the lid closing protrusion side. Therefore, if a lid closing guide panel having a uniform thickness is used, this step may become an obstacle and the closing lid protrusion may not be smoothly fitted into the closing gap. Moreover, this step portion becomes a ruler for folding the panel, and there is a possibility that a crease that crosses the panel may enter the central portion of the lid closing guide panel. This crease becomes noticeable when the lid closing guide panel is made of paper.

On the other hand, in the double-door box of the present invention, the thickness of the tip of the lid closing guide panel is set to be such that "the lid closing protrusion and the upper forming plate of the lid closing gap are overlapped". Since the thickness is increased by the difference between the thickness and the thickness of the lid plate (storage box) on the lid closing protrusion side, the lid closing guide panel is used as a guide when closing the lid, and the lid closing protrusion is smoothly closed. It can be fitted into the gap, and there is no risk of creases crossing the central portion of the lid closing guide panel due to this stepped portion.

Further, according to the fourth aspect of the present invention, the lid closing protrusion is formed by removing the outer plate at the tip of the lid plate on which the lid closing protrusion is formed, while the lid closing gap is formed. It is formed by removing the inner plate at the tip of the lid plate.
Thereby, the lid closing protrusion and the lid closing gap of the set size can be easily formed.

Furthermore, according to the present invention according to claim 5, each forming region in the left and right lid plates of the lid protrusion and the lid closing gap is, for example, the material and size of the double-door box and the size of the stored object. It can be changed as appropriate according to conditions such as weight and weight.
In addition, the shapes of the lid closing protrusion and the lid closing gap are also rectangular, trapezoidal, and tongue-shaped, depending on conditions such as the material and size of the double-door box and the size and weight of the stored items. You can use any of them.

It is a perspective view which shows the open state of the double-door box which concerns on Example 1 of this invention. It is a perspective view which shows the closed state of the double-door box which concerns on Example 1 of this invention. It is a perspective view which shows the closing start state of the double door type box which concerns on Example 1 of this invention. FIG. 5 is an enlarged front view of a main part of a double-door box according to a first embodiment of the present invention in a closed state. It is a perspective view which shows the closed state of the double-door box which concerns on Example 2 of this invention. (A) is an enlarged front view of a main part of the double-door box according to the second embodiment of the present invention in a state where the lid is being closed. (B) is an enlarged front view of a main part of a double-door box according to a second embodiment of the present invention in a closed state.

Hereinafter, examples of this device will be specifically described. For convenience of explanation, the X1 direction is the front direction of the double door box, the X2 direction is the rear direction of the double door box, the Y1 direction is the left direction of the double door box, the Y2 direction is the right direction of the double door box, and the Z1 direction is the double door type. The downward direction of the box and the Z2 direction are the upward directions of the double-door box. It should be noted that all directions in the specification are based on the directions in FIG.

In FIG. 1, reference numeral 10 denotes a double-door box according to the first embodiment of the present invention. The double-door box 10 has a bottom plate 11, a front side plate 12, a rear side plate 13, a left side plate 14 and a right side plate 15, and has an upper surface. The bottom plate 11, the left side plate 14, and the right side plate are the parts excluding both ends of the storage box portion 17 that is opened to store the cosmetics (stored items) 16 and both ends in the Y1-Y2 direction (the length direction of the strip-shaped packaging box portion 18). Both ends in the Y1-Y2 direction, which are serially adhered (fixed) to each outer surface of 15, are double-sided opening including a left lid plate 19 and a right lid plate 20 that close the opening a on the upper surface of the storage box portion 17. It includes a horizontally long strip-shaped packaging box portion 18 that serves as a lid 21, and an inner box 23 that is fitted into the bottom portion of the storage box portion 17 and has a mounting pocket 22 for cosmetics 16 formed in the central portion.

Hereinafter, these parts will be specifically described.
The storage box portion 17 is a square container made of corrugated cardboard having a thickness of 3 mm and having a decorative paper 25 attached to the entire surface and having an open upper surface. The internal dimensions of the storage box 17 are 250 mm in length (length in the X1-X2 direction), 237 mm in width (length in the Y1-Y2 direction), and 87 mm in depth (length in the Z1-Z2 direction). is there. The outer dimensions of the storage box portion 17 are 256 mm in length, 243 mm in width, and 90 mm in depth.

On the other hand, the strip-shaped packaging box portion 18 is made of corrugated cardboard having a thickness of 2.5 mm to which decorative paper 25 is stuck on the entire surface, and the corrugated cardboard has an outer plate 26 and an inner plate 27 made of cardboard each having a thickness of 1 mm. It is a plywood in which the entire surface including the front and back surfaces is covered with a decorative paper 25 having a thickness of 0.25 mm.
The strip-shaped packaging box portion 18 is a horizontally long and large-sized strip plate having a length of 260 mm in the X1-X2 direction and a length of 701 mm in the Y1-Y2 direction.

The band-shaped packaging box portion 18 has a bottom cover plate (size: 260 mm × 250 mm) 28 adhered to the entire outer surface of the bottom plate 11 and a left cover plate (size: 93 mm × 260 mm) adhered to the entire outer surface of the left side plate 14. 29, the right cover plate (size: 93 mm × 260 mm) 30, the left lid plate (size: 125 mm × 260 mm) 19, and the right lid plate (size: 125 mm × 260 mm) 20 that are adhered to the entire outer surface of the right plate 15. Are connected via the crease b, respectively.

Further, at the tip of the right lid plate 20, an elongated lid closing protrusion 31 extending by 15 mm in the Y2 direction is integrally formed over the entire length in the X1-X2 direction. The lid closing protrusion 31 is an outer plate having a thickness of 1 mm, which is "less than half the thickness (2.5 mm) of the strip-shaped packaging box portion 18" of the 15 mm extension portion of the right lid plate 20. A portion of 26 is cut (removed), and then the entire surface including the front and back surfaces thereof is covered with a decorative paper 25 having a thickness of 0.25 mm. Therefore, the thickness of the lid closing protrusion 31 is 1.5 mm.

A vertically long left inner layer plate 32 having a length of 250 mm in the X1-X2 direction, a length of 120 mm in the Y1-Y2 direction, and a thickness of 2.5 mm is adhered to the inner surface of the left lid plate 19. At this time, the left lid plate 19 and the left inner layer plate 32 have their tip edges (end edges on the Y1 side) aligned with each other, and between the edge edges on the X1 side and between the edge edges on the X2 side. They are bonded to each other with an interval of 5 mm.

Further, between the tip of the left lid plate 19 (the end on the Y1 side) and the tip of the left inner layer plate 32, a lid closing protrusion 31 is detachably fitted at the time of closing the lid. 33 is formed. The lid closing gap 33 is a region of about 15 mm in the Y1 direction from the Y2 side edge of the left lid plate 19, and is "less than half the thickness (2.5 mm) of the strip-shaped packaging box portion 18". The portion of the inner plate 27 having a thickness of 1 mm is cut (removed) over the entire length in the X1-X2 direction, and then the entire surface including the front and back surfaces thereof is covered with a decorative paper 25 having a thickness of 0.25 mm. is there. Therefore, the distance between the lid closing gaps 33 is 1.25 mm.

Further, on the inner surface of the right lid plate 20, the right inner layer plate 34 having the same size as the left inner layer plate 32 is adhered at the same position as when the left inner layer plate 32 is adhered to the inner surface of the left lid plate 19. As a result, the lid closing protrusion 31 protrudes by 15 mm from the tip edge (end edge on the Y2 side) of the right lid plate 20 and the right inner layer plate 34 that apparently overlap each other.

The inner box 23 is made of Kent paper having a thickness of 0.5 mm, and a large rectangular mounting pocket 22 long in the X1-X2 direction is formed in the central portion of the top plate thereof. The cosmetic 16 is detachably mounted with only the upper portion of the cosmetic case of the cosmetic 16 protruding from the mounting pocket 22.
Further, the exposed surfaces of the double-door box 10 such as the outer surfaces of the left and right inner layer plates 34 may be, for example, a posting surface for an advertisement of a product (cosmetics 16) or an instruction for use.

Next, how to use the double-door box 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
As shown in FIG. 1, when the lid is closed, the cosmetics 16 are first attached to the attachment pocket 22 of the inner box 23. After that, the left and right lid plates 19 and 20 are rotated inward of the box with both hands, respectively. As a result, near the opening a of the storage box portion 17, the tip of the lid closing protrusion 31 having a thickness of 1.5 mm on the right lid plate 20 is closed by the tip portion of the left lid plate 19 having a width of 1.25 mm. It is inserted into the gap 33 (see FIG. 2).

After that, by advancing the rotation of the left and right lid plates 19 and 20, as shown in FIGS. 3 and 4, the lid closing protrusion 31 is finally completely fitted into the lid closing gap 33. At the same time, the left inner layer plate 32 and the right inner layer plate 34 are fitted into the opening a of the storage box portion 17 in the form of a large-sized single plate in which the tip edges of the left inner layer plate 32 are apparently butted against each other.
As a result, the closed state of the opening a of the storage box portion 17 by the double-door lid 21 is firmly maintained without rattling, and the lid closing protrusion 31 of one lid plate 20 is used for closing the other lid plate 19. The opening a on the upper surface of the storage box portion 17 can be closed in a state where the storage box portion 17 can be inserted and removed so as to be inserted into the gap 33.
Further, when the double-door lid 21 is opened, this operation may be performed in the opposite direction.

As a result, in the conventional double-opening box 10, a magnet (not shown) used at the time of closing the lid becomes unnecessary, and if a hand or an obstacle collides with the closed double-opening lid 21, an empty double-opening type can be used. Even if the box 10 is turned upside down, the lid cannot be easily opened.
When the lid is closed, the lid closing protrusion 31 having a thickness of 1.5 mm is forcibly fitted into the lid closing gap 33 having a width of 1.25 mm. Therefore, when the lid is closed, the left lid is more than the right lid plate 20. The board 19 is more exciting. The details will be described later in Example 2.

Further, in the storage box portion 17, the portion where the confronting portion of the strip-shaped packaging box portion 18 is adhered and reinforced includes not only the bottom plate 11 but also the left and right plates 14 and 15. Therefore, the parts (left and right cover plates 29 and 30) of the strip-shaped packaging box portion 18 (left and right cover plates 29 and 30) facing the left and right side plates 14 and 15 as in the conventional box move with the opening and closing operations of the left and right lid plates 19 and 20. The left and right plates 14 and 15 are not undulated, and can be firmly reinforced from the outside by the left and right cover plates 29 and 30 of the strip-shaped packaging box portion 18.
As a result, when the double-door lid 21 is opened and closed, even if the hand moving the left and right lid plates 19 and 20 collides with the left and right side plates 14 and 15, they are not easily damaged.

Further, the lid closing protrusion 31 is formed by removing the outer plate 26 at the tip of the right lid plate 20 on which the lid closing protrusion 31 is formed, while the lid closing gap 33 is formed by removing the outer plate 26 at the tip of the left lid plate 19 on which the lid closing protrusion 31 is formed. The inner plate 27 of the above is removed to form the lid.
Therefore, the lid closing protrusion 31 and the lid closing gap 33 of the set size can be easily formed.

Furthermore, the formation regions on the left and right lid plates 19 and 20 of the lid closing protrusion 31 and the lid closing gap 33 are, for example, the material and size of the double-door box 10, the size and weight of the stored items, and the like. It can be changed as appropriate according to the conditions.
Further, the shapes of the lid closing protrusion 31 and the lid closing gap 33 are also, for example, rectangular or trapezoidal, depending on conditions such as the material and size of the double-door box 10 and the size and weight of the stored items. Any of the tongue pieces can be used.
In particular, the double-door box 10 is suitable as a gift box.

Next, the double-door box according to the second embodiment of the present invention will be described with reference to FIGS. 5 and 6.
As shown in FIG. 5, the feature of the double-door box 10A of the second embodiment is that the front part of the panel (half of the front side of the panel) is located in the middle part in the X1-X2 direction of the outer surface of the tip part of the left lid plate 19. ) 36a protrudes in the direction of the lid closing protrusion 31 to serve as an insertion guide when the lid closing protrusion 31 is inserted into the lid closing gap 33, and after closing the lid, it serves as a lid retainer for the double lid 21. This is the point where the base portion (half of the base end side) 36b of the guide panel 36 is bonded.

The lid closing guide panel 36 is a square cardboard having a side of 90 mm.
The lid closing guide panel 36 has a thickness of the tip portion 36a that abuts on the outer surface of the right lid plate 20 as compared with the base portion 36b bonded to the left lid plate 19, and the lid is closed from the interval of the lid closing gap 33. The thickness t is the sum of the large thickness of the protrusion 31 (0.25 mm) and the thickness of the decorative paper 25 attached to the outer surface of the outer plate 26 of the left lid plate 19 (0.25 mm). It is thickened by the amount (0.5 mm).

That is, two layers of the outer plate 26 of the left lid plate 19 having a thickness of 1.5 mm and the inner plate 27 of the right lid plate 20 whose front and back surfaces are covered with decorative paper 25 are in a closed state. The thickness of the tip of the left lid plate 19 is (3 mm), while the thickness of the right lid plate 20 is 1 mm each, and the front and back surfaces of the plywood made of the outer plate 26 are covered with decorative paper 25. It becomes 2.5 mm. As a result, the step formed on the left and right lid plates 19 and 20 becomes 0.5 mm.

In this way, in the double-door lid 21, the entire outer surface of the lid closing protrusion 31 is removed by a thickness of less than half the thickness of the band-shaped packaging box portion 18, while the lid closing gap 33 is formed. The entire inside of the tip of the left lid plate 19 is removed so that the lid closing gap 33 is narrower than the thickness of the lid closing protrusion 31.

Therefore, when the lid closing protrusion 31 is fitted into the lid closing gap 33, the outer surface of the left lid plate 19 on the lid closing gap 33 side is larger than the outer surface of the right lid plate 20 on the lid closing protrusion 31 side. It gets higher. Therefore, if the lid closing guide panel 36 having a uniform thickness is adopted as the entire panel, this step may become an obstacle and the closing lid protrusion 31 may not be smoothly fitted into the closing gap 33. Moreover, this stepped portion serves as a ruler for folding the panel, and there is a possibility that a crease (not shown) that crosses the panel may enter the central portion of the lid closing guide panel 36. This crease becomes remarkable when the lid closing guide panel 36 is made of paper as in the second embodiment.

On the other hand, in the double-door box 10 of the second embodiment, the thickness of the tip portion 36a of the base portion 36b of the lid closing guide panel 36 is set to "the thickness of the lid closing protrusion 31 and the lid closing". Since the thickness is increased by the difference between the thickness of the outer plate (upper forming plate) 26 of the gap 33 and the thickness of the right lid plate 20 (storage box portion 17), the lid closing guide panel 36 is used as a guide when the lid is closed. Therefore, the closing / closing protrusion 31 can be smoothly fitted into the closing gap 33. Moreover, there is no possibility that a broken streak crossing the central portion of the lid closing guide panel 36 will be generated due to this stepped portion.
Further, when opening the double-opening lid 21, if the tip of the closing lid guide panel 36 is pinched and the left lid plate 19 is rotated upward, the double-opening lid 21 can be opened smoothly.
Since other configurations, actions, and effects are substantially the same as those in the first embodiment, description thereof will be omitted.

This idea is a useful technique as a double-door box having a double-door lid.

10,10A Double door box 11 Bottom plate 12 Front side plate 13 Rear side plate 14 Left side plate 15 Right side plate 16 Cosmetics (stored items)
17 Storage box part 18 Band-shaped packaging box part 19 Left lid plate 20 Right lid plate 21 Double-sided lid 31 Protrusion for closing lid 32 Left inner layer plate 33 Gap for closing lid 34 Right inner layer plate 36 Closing guide panel 26 Outer plate 27 Inner plate a Opening t thickness

Claims (5)

It has a bottom plate and four side plates on the front, back, left, and right, and has a storage box with an open top surface for storing stored items.
The portions excluding both ends in the length direction are fixed in series to the outer surfaces of the bottom plate, the left side plate, and the right side plate, and the remaining both ends in the length direction are openings on the upper surface of the storage box portion. It is a double-opening box equipped with a horizontally long strip-shaped packaging box part that is a double-opening lid consisting of a left lid plate and a right lid plate that closes the lid.
Of the left inner layer plate and the right inner layer plate fitted into the opening of the storage box portion with their tip edges abutted against each inner surface of the left lid plate and the right lid plate, the corresponding one is fixed. Being done
A lid closing protrusion is formed at the tip of either the left lid plate or the right lid plate.
The lid is closed between the tip of the other of the left lid plate and the right lid plate and the tip of any of the left inner layer plate and the right inner layer plate fixed to the other. A double-door box characterized by the formation of a gap for closing the lid into which the protrusions can be inserted and removed. On the outer surface of the tip of the left lid plate and the right lid plate on which the lid closing gap is formed, the panel tip portion projects in the direction of the lid closing protrusion, and the lid closing protrusion The first aspect of claim 1, wherein the base of the lid closing guide panel, which serves as an insertion guide when the lid is inserted into the lid closing gap, and which serves as a lid retainer for the double-opening lid after closing the lid, is fixed. Double-door box. The strip-shaped packaging box portion has a uniform thickness over the entire length.
The lid-closing protrusion is obtained by removing the entire outer surface of the lid-closing protrusion by a thickness of less than half the thickness of the band-shaped packaging box portion.
The lid closing gap covers the entire inside of the tip of the left lid plate and the right lid plate on which the lid closing gap is formed, based on the thickness of the lid closing protrusion. Is formed between the removed tip portion and the tip portion of the corresponding left inner layer plate and the right inner layer plate by removing the lid so as to narrow the lid.
The lid closing guide panel is characterized in that the thickness of the panel tip portion from the panel base portion is made thicker by the thickness of the lid closing protrusion than the distance of the lid closing gap. The double-door box according to item 2. The left lid plate and the right lid plate are two-layer type in which an outer plate and an inner plate are bonded to each other.
The lid closing protrusion is obtained by cutting off the outer plate at the tip of the left lid plate and the right lid plate on which the lid closing protrusion is formed.
The lid closing gap is characterized in that it is obtained by cutting off the inner plate at the tip of the left lid plate and the right lid plate on which the lid closing gap is formed. The double-door box according to claim 3. Each forming region of the lid closing protrusion and the lid closing gap is the entire area or a part of the corresponding tip portion of the left lid plate and the right lid plate.
Any one of claims 1 to 4, wherein each of the lid closing protrusion and the lid closing gap shape is any one of a rectangular shape, a trapezoidal shape, and a tongue piece shape. The double-door box described in item 1.

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