JPH1035644A - Slide opening/closing type paper box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open a lid easily, by opening the lid by the engagement of the engaging means of the front end of a tongue piece formed by a U-shaped cut with the turn-in fold of an outer tube when sliding an inner box from the outer tube by pushing up the lower plate of the inner box with finger, in a paper box designed so that the lid is opened by the upward slide of the inner box. SOLUTION: By pushing up the tongue-side plate of an inner box with an outer tube grabbed and then sliding up the inner box, a turn-back fold 14 formed by folding back the front end of a tongue piece 10, formed in the bottom plate of the inner box by a U-shaped cut, outside along a fold line engages with a turn-in fold 19 formed in the upper edge of the rear plate 16 of the outer tube, in the position where the inner box is pushed up only a specific distance. By pushing up the inner box further in this condition, the tongue piece 10 pulls back the upper part of the inner box because the turn-back fold 14 and the turn-in fold 19 engage with each other even when the inner box is pushed up. As a result, in the upper part of the inner box, the upper part of a bottom plate 1 and the end parts of the left and right side plates bend rearward along the fold lines 11 formed in the upper part of the bottom plate, therefore a lid can be opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper box which can be easily opened by opening a lid by sliding the inner box upward.

[0002]

2. Description of the Related Art Conventionally, as a paper box of a type which can be opened and closed by using a portion including an upper surface plate of an upper part of the paper box as a lid, for example, a front plate, a side plate and a back plate as described in Japanese Utility Model Publication No. 56-909 are disclosed. In a paper container on a rectangular parallelepiped consisting of a face plate, a top plate, and a bottom plate, by providing a continuous cut in the front plate and the side plate, the lid including the top plate with the fold of the back plate serving as a fulcrum can be used as a back plate side. There is a known shape that can be folded and opened and closed. However, this type of paper box with an opening / closing lid is a method in which the upper part of the paper box is opened and closed by grasping it with a finger and bending it toward the back plate side. There is a disadvantage that. In addition, there is a disadvantage that the configuration of the paper box is complicated and the assembling and attaching steps are complicated.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a slidable paper box which has a simple structure and is easy to assemble and which can be opened by sliding a middle box.

[0004]

An outer cylinder comprising a front plate, a rear plate, and both side plates and having a folding piece folded inward at an upper end edge of the rear plate, and upper and lower plates on each side of a square bottom plate. And a left and right side plate are formed, a tongue is formed at the upper part of the bottom plate by a U-shaped notch facing downward, and an engagement means for engaging with the folding piece is formed at a tip end of the tongue, and the bottom plate is formed. A fold line is formed in a region on both sides excluding the U-shaped cut so as to cross the U-shaped cut in parallel with the upper side of the bottom plate, and extends from both outer ends of the fold line to the entire width of the left and right side plates. It is a paper box having a middle box formed with a cut extending therethrough, wherein the middle box is inserted into the outer cylinder and the middle box is slidable by a predetermined dimension in the upper direction of the outer cylinder. By pushing up the lower plate of the inner box with your finger and sliding the inner box from the outer cylinder, The engagement means at the tip end of the tongue piece formed by the notch engages with the folding piece of the outer cylinder, and the upper part of the inner box is pulled backward, so that the upper part of the bottom plate and the upper plate The lid, which is formed by the upper and lower ends of the left and right side plates, can be opened by bending backward at a fold line formed in the bottom plate.

[0005] By forming the engaging means as a folded piece formed by bending the tip of the tongue piece outward in parallel with the upper side of the bottom plate, the folded piece and the folded piece at the upper end of the outer cylinder are formed. The lid can be easily opened by engaging and sliding the inner box.

By forming a fold line parallel to the upper side of the bottom plate at a position where the tongue piece substantially overlaps the upper end of the folded piece, the tongue piece is bent by the fold line when the lid is completely opened. Therefore, the lid can be kept open.

Since the U-shaped cut is formed adjacent to the upper side of the bottom plate, the lid can be opened smoothly by lightly pushing up and sliding the lower plate of the inner box with a finger.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an inner box and an outer cylinder constituting a sliding openable paper box of the present invention, FIG. 2 is a plan view showing a blank plate for manufacturing the inner box, and FIG. 3 is a sliding openable paper box of the present invention. A perspective view of the front side and the back side showing a state where the bottom of the inner box is pushed up and the lid is opened,
1 is a bottom plate, 2 is a left and right side plate, 3 is an upper plate, 4 is a lower plate, 5
Is a flap, 6 is an insert, 7 is a cut, 8 is a cut, 9 is a U
Character cut, 10 is tongue piece, 11, 12, 13 is crease line, 14 is folded piece, 15
Denotes a front plate, 16 denotes a rear plate, 17 denotes a side plate, and 19 denotes a folding piece.

An embodiment of a paper box of the slide-opening type according to the present invention comprises a middle box and an outer cylinder as shown in FIGS.
As shown in FIG. 1 (a), the middle box has left and right side plates 2 formed on opposite long sides of the rectangular bottom plate 1, and upper and lower plates on opposite upper and lower short sides of the bottom plate 1, respectively. 3 and a lower plate 4 are formed.
A tongue 10 is formed by a U-shaped cut 9 facing downward from the upper side of the bottom plate 1 and the crease between the bottom plate 1 and the upper outer plate 3a. 13 formed, tongue piece
The tip of 10 is bent outward at the fold line 13 and folded
14 are formed, and fold lines 11 are formed on both sides of the bottom plate 1 except for the U-shaped cut 9 in parallel with the upper side of the bottom plate 1, and the left and right side plates 2 are formed from both outer ends of the fold line 11 respectively. Left right plate 2
Is formed to form a notch 8 extending over the entire width of.

[0010] As shown in FIG.
And a back plate 16 and a side plate 17
It has a shape in which a folding piece 19 folded inward is formed on the upper end edge of 16. The inside of the outer cylinder shown in FIG.
Insert the inner box shown in (a) from the end of the outer cylinder where the folding piece 19 is located.
The bottom plate 1 is inserted with the lower plate 4 of the inner box first, with the back plate 16 on which the folding pieces 19 are formed.

As shown in FIG. 2, the blank plate of the middle box of the present embodiment has a rectangular bottom plate 1 and upper and lower plates formed by folding the upper and lower sides of the short side opposite to each other. At the same time, the lower side plate 4a and the lower inner plate 4b are connected to each other via a crease at the lower side, and the insertion pieces 6 are provided at both ends of the upper inner plate 3b and the lower inner plate 4b. Left and right side plates 2 having flaps 5 connected at both ends via folds are connected to left and right sides formed by opposing long sides of the bottom plate 1 respectively. A tongue piece 10 is formed by the cut 9, and a fold line for forming a folded piece 14 is formed on the tongue piece 10.
13 and a fold line 12 for bending the tongue piece 10 with the lid opened is formed at a position above and below the fold line 13 by a vertical width of the folded piece 14, and a U-shaped cut in the upper part of the bottom plate 1 A fold line 11 is formed parallel to the upper side of the bottom plate 1 in regions on both sides excluding 9, and a cut 8 extending diagonally upward from both outer ends of the fold line 11 is formed in the left and right side plates 2.

In this embodiment, the engaging means provided at the tip of the tongue piece 10 is a folded piece 14 formed by bending the tip of the tongue piece 10 along a fold line 13. Instead of forming the engagement piece, the engagement piece may be formed by, for example, cutting and bending. Also, as in this embodiment, U
Instead of forming the notch 9 above the bottom plate 1 so as to be adjacent to the upper side of the bottom plate 1, a downward U-shaped notch is formed at a position below the upper side of the bottom plate 1 by a predetermined distance to form a U-shaped cut. A crease may be provided between the upper ends of the insets. In this case, the lid can be opened with a smaller sliding distance of the inner box than in the case of the present embodiment, but a strong force is required when pushing up the lower plate of the inner box with a finger. .

In order to assemble the blank plate of the inner box shown in FIG. 2, first, the left and right side plates 2 connected to the opposite long sides of the bottom plate 1 are bent at right angles, and the flaps 5 connected to both ends are respectively placed inside. Bend. Then the bottom plate 1
Upper and lower plates 4a and 4b connected to the lower side of the upper and lower outer plates 3a and 3b connected to the upper side of the lower plate 1
Are bent so as to enclose the flaps 5 respectively to form upper and lower side plates, and insertion pieces 6 provided at both ends of the upper outer plate 3b and the lower inner plate 4b are provided at the crease portions between the left and right side plates 2 and the flap 5. Insert it into the cut 7 and fix it. In this state, the assembled inner box can be bent along the fold line 11 at the upper portion of the bottom plate 1 together with the ends of the upper plate 3 and the left and right side plates 2. The tip of the tongue piece 10 formed by the U-shaped cut 9 is folded outward at the fold line 13 to form a folded piece 14, thereby completing the assembly.

To open and close the slide-openable paper box of the present invention, the inner box is slid upward by lifting the lower plate 4 of the inner box by grasping the outer cylinder, and the inner box is pushed up by a predetermined distance. When it is done, U
A folded piece 14 formed by folding the tip end of a tongue piece 10 formed by the character cut 9 outward at a fold line 13 and a folded piece 19 provided on the upper edge of a rear plate 16 of the outer cylinder are related. It will be in the state of being combined. In this state, the fold line 12 provided on the tongue piece 10 comes to the position of the upper end of the rear plate 16 of the outer cylinder. When the inner box is further slid up and pushed up, the tongue 10
Since the folded piece 14 at the tip end of the outer cylinder and the folded piece 19 provided at the upper end edge of the rear face plate 16 of the outer cylinder are engaged, the tongue piece 10 functions to pull back the upper part of the inner box backward, The upper part of the bottom plate 1 and the ends of the upper plate 3 and the left and right side plates 2 are bent rearward at a fold line 11 provided at the upper part of the middle box at the upper part of the bottom plate 1,
The lid can be opened as shown in FIG. With the lid open, the tongue piece 10 bends backward at the fold line 12 so that the lid can be kept open. In this way, the lid can be easily opened by sliding the lower plate 4 of the inner box so as to push it up. When closing the lid, the upper plate 3 of the inner box is pushed downward to close the lid in its original state.

In the slidable paper box of the present invention, the middle box is slid so that the top of the middle box is bent rearward integrally with the top of the bottom plate 1, the upper plate 3, and the ends of the left and right side plates 2 to open. Because of this shape, it has the characteristic that the contents can be taken out very easily. Therefore, it is suitable for packaging various cards, card-like objects, pencils, chick-cholates and other long articles, long plate-like objects such as sheet gum,
The contents can be pulled straight out of the inner box without bending.

[0016]

According to the present invention, an outer cylinder comprising a front plate, a rear plate, and both side plates and having a folding piece folded inward at an upper edge of the rear plate, and upper and lower side plates and left and right side plates are formed on each side of a square bottom plate. A tongue is formed at the upper part of the bottom plate by a U-shaped notch facing downward, and an engaging means for engaging the folding piece is formed at the tip of the tongue, and crosses the U-shaped notch at the upper part of the bottom plate. A fold line is formed parallel to the upper side of the bottom plate in the regions on both sides excluding the U-shaped cut as described above, and a middle box formed with a cut extending from both outer ends of the fold line over the entire width of the left and right side plates. Since the inner box is inserted into the outer cylinder and the inner box is slidable and opened and closed so that the inner box can be slid in the upper direction of the outer cylinder by a predetermined size, the lower plate of the inner box is pushed up with a finger to remove the inner box. Engagement of the tip of the tongue formed by the U-shaped cut by sliding the inner box from the cylinder The step is engaged with the folding piece of the outer cylinder, the upper part of the inner box is pulled backward, and the lid consisting of the upper part of the bottom plate, the upper plate and the ends of the left and right side plates is formed on the bottom plate. It can be opened by bending backward at the fold line. In the above paper box, the engaging means is a folded piece formed by bending the tip end of the tongue piece outward in parallel with the upper side of the bottom plate, so that the folded piece and the folded piece at the upper end of the outer cylinder are securely engaged. The lid can be opened together. In addition, by forming a fold line in parallel with the upper side of the bottom plate at a position substantially overlapping with the upper end of the folded piece of the tongue piece, the tongue piece is bent by the fold line with the lid completely opened, so It can be kept open. Furthermore, U
By forming the notch adjacent to the upper side of the bottom plate,
The lid can be opened smoothly by gently pushing up the lower plate of the inner box with a finger and sliding it.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a slide-openable paper box according to the present invention (a).
Is a perspective view showing an inner box, and (b) is a perspective view showing an outer cylinder.

FIG. 2 is a plan view showing a blank plate for producing a middle box.

FIG. 3 is a perspective view of the front side and FIG. 3B is a perspective view of the back side of the sliding openable paper box according to the present invention, showing the state in which the bottom of the inner box is pushed up to open the lid.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bottom board 10 Tongue piece 2 Left right board 11, 12, 13 Fold line 3 Upper board 14 Fold piece 4 Lower board 15 Front board 5 Flap 16 Rear board 6 Insert piece 17 Side board 7 Cut 19 Fold piece 8 Cut 9 U-shaped Cut

Claims (4)

[Claims] 1. An outer cylinder comprising a front plate, a rear plate, and both side plates and provided with a folding piece folded inward at an upper edge of the rear plate, and upper and lower side plates and left and right side plates on each side of a square bottom plate. A tongue is formed at the top of the bottom plate by a U-shaped notch facing downward, and an engagement means for engaging the folding piece is formed at the tip of the tongue, and the U-shape is formed at the bottom plate. A fold line is formed parallel to the upper side of the bottom plate in a region on both sides except the U-shaped cut so as to cross the cut, and a cut extending from both outer ends of the fold line over the entire width of the left and right side plates. Wherein the inner box is inserted into the outer cylinder and the inner box is slidable by a predetermined dimension in an upper direction of the outer cylinder. Expression paper box. 2. The paper box according to claim 1, wherein said engaging means is a folded piece formed by bending a tip end of said tongue piece outward in parallel with an upper side of said bottom plate. . 3. The paper box according to claim 2, wherein a fold line is formed parallel to an upper side of the bottom plate at a position of the tongue piece substantially overlapping with an upper end of the folded piece. 4. The sliding open / close paper box according to claim 1, wherein the U-shaped cut is formed adjacent to an upper side of the bottom plate.