JP3359001B2 - Article packaging structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to packaging of an article in which two inner boxes for buffering are symmetrically accommodated in an outer box, and the article is clamped and fixed by an elastic synthetic resin sheet which is stretched over each of the inner boxes. It relates to the improvement of the structure.

[0002]

2. Description of the Related Art Conventionally, a square base surface portion having a window hole, an elastic synthetic resin sheet covering the window hole and fixed to the base surface portion, and a base member formed on the outer periphery of the base surface portion A buffer inner box comprising a side piece that extends outward from the folding curve and is bent along each of the folding curves to hold the base surface in a hollow position; Article storage of Japanese Utility Model Laid-Open No. 48-112780 as an article packaging structure in which articles are stored and constrained in an outer box so as to approach and oppose each other, and articles are sandwiched and fixed between a pair of opposing synthetic resin sheets. Various structures are known, such as a body or a packaging device using a membrane described in Japanese Patent Application Laid-Open No. Hei 3-503995. These assemble the buffer inner box using one piece of corrugated cardboard or paperboard, and form a peripheral wall of the inner box by bending the side pieces at right angles to the base surface. Although the side piece receives the load of the article held as the peripheral wall, it cannot hold a heavy object because the strength depends on the thickness of the cardboard or paperboard. Therefore, the only way to increase the strength of the buffer inner box is to increase the thickness of the corrugated cardboard or paperboard. However, there is a limit to this, and there are drawbacks that the operation becomes complicated and expensive.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its main problem is that a side piece which becomes a peripheral wall of an inner box for buffer is formed by a base surface portion. Formed on the outer side piece and the inner side piece with the top surface of the
It is an object of the present invention to provide an article packaging structure in which the inner wall for cushioning is strengthened by bending in the same direction to form a peripheral wall having a channel-shaped cross section that does not overlap with each other.

[0004]

According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, a base surface portion having a window hole, and an article stretched to cover the window hole to hold an article. A possible synthetic resin sheet, and an outer side piece extending along the outer periphery of the base surface and bent along a first fold curve formed at an edge of the base surface to hold the base surface in a hollow position And the two inner boxes for buffering are opposed to each other so that the base surfaces thereof are close to each other, and are housed in the outer box without any gap in the outer peripheral direction, between a pair of synthetic resin sheets facing each other. In the article packaging structure in which the article is squeezed and held, the height of the outer side portion at the time of bending is substantially inward from the second fold curve serving as the edge of the window hole at the window hole forming portion. An inner side piece extending to the same length is formed, a top surface surrounding the window hole on the base surface, and the top surface The inner side portion and the outer side portion, which are bent substantially vertically along the first fold curve and the second fold curve, form a peripheral wall having a channel-like cross section, and the inner side portion is a restraining means. It is restrained by the outer side piece to maintain the posture at the time of bending, and as the restraining means, a pair of cut lines are formed in the outer side piece so that the distal end is set wide and the base side is A receiving groove or hook for forming a narrow hooking piece so as to be freely bendable and locking the hooking piece at a location corresponding to the hooking piece at an inner side piece facing the outer side piece. A technical means is adopted in which a receiving groove forming piece which is formed in the same shape as the stop piece and is bent to form a receiving groove portion and can lock the hooking piece is provided.
Further, in the invention of claim 2, a base surface portion having a window hole;
A synthetic resin sheet stretched to cover the window hole and capable of holding articles, and bent along a first fold curve formed along an outer periphery of the base surface and formed at an edge of the base surface; And a buffer inner box comprising an outer side piece for holding the base surface in a hollow position, and two buffer inner boxes facing each other so that the base surfaces approach each other, and an outer box without a gap in the outer peripheral direction. In a packaging structure for an article, which is housed in a container and squeezes and holds the article between a pair of opposed synthetic resin sheets, in a window hole forming portion, inward from a second fold curve serving as an edge of the window hole. A top surface portion surrounding the window hole is formed on the base surface portion so as to form an inner side piece portion extending substantially the same length as the height of the outer side portion at the time of bending, and a second surface portion sandwiching the top surface portion is formed. The inner side piece and the outer side piece that are bent substantially perpendicularly along the first fold curve and the second fold curve overlap in a planar manner. A peripheral wall having a channel-like cross section that does not fit is formed, and the inner side portion is restrained by the outer side portion by restraining means to maintain a posture at the time of bending, and the outer side as the restraining means is formed. A hook piece is formed on each of the piece part and the inner side piece part so as to be freely bendable, and the hook piece has a hook-like tip, and the pair of hook pieces are bent to the opposite side to be bent. Technical measures are taken such that the hook portion is hooked and the inner side portion and the outer side portion are mutually restrained. Further, in the invention according to claim 3, the buffer inner box is made of a single square or rectangular corrugated cardboard or paperboard when unfolded, and the outer side portion formed along each side of the outer periphery of the base surface portion. Are extended from both ends of a first fold curve which is a base end of a pair of opposed outer side pieces, respectively, in an extending direction, and are separated from an adjacent outer side piece via a cut line and are separated from each other. The auxiliary side piece is bent at right angles to the outer side piece to which the auxiliary side piece is connected when the buffer inner box is assembled, and the adjacent outer side piece is The auxiliary side piece is inserted by the auxiliary restraining means in a state where the adjacent outer side piece and the auxiliary side piece are overlapped. A technical measure is taken to maintain the posture at the time of bending by being restrained by one side part.
Further, in the invention of claim 4, a technical means is adopted in which a synthetic resin sheet is attached to the base surface of the inner box for buffer to cover the window hole. In the invention according to claim 5, the synthetic resin sheet is stretched over a frame portion of a holding body formed separately from the buffer inner box, and the holding body is placed on the substrate portion of the buffer inner box. Technical measures are taken such that they are stacked and stored in an outer box.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the article packaging structure of the present invention will be described below with reference to the drawings. In the packaging structure of this article, two buffer inner boxes 1, 1 are symmetrically arranged and stored in an outer box 20, as shown in FIG.
The article G is sandwiched and fixed to a hollow position by an elastic and flexible synthetic resin sheet 7 stretched over each of the buffer inner boxes 1 and 1.

As shown in FIGS. 1 to 3, the buffer inner box 1 is made of one rectangular cardboard. In the illustrated example, the first folding curve L1 is drawn in the center at the center. A base surface portion 2 which is rectangular and surrounded by the first folding curve L1 is formed. A rectangular window hole 3 similar to this is formed in the base surface portion 2.

The place where the window 3 is formed is not completely cut out as in the prior art, but is formed by forming a small (about 1/3 of the window in the illustrated example) rectangular through hole 3b in the center. And a second rectangularly arranged second edge forming the edge 3a of the window hole 3.
Cut lines extending from the four corners of the folding curve L2 to the corners of the through-holes 3b are formed to form the inner side piece 6 divided into four. On the other hand, the first base surface portion 2 has the first
Four outer side pieces 5 extending outward from the folding curve L1 and bent along the first folding curves L1 to hold the base surface 2 in a hollow position are provided in series.

Here, the inner side piece 6 is provided with a window hole edge 3.
a of the second fold curve L2, which extends inward from a and is approximately the same length as the outer side piece 5 and is obliquely cut inward at the four corners and the length of the side on the tip side becomes the base end. It is formed in a substantially trapezoidal shape shorter than the length. The inner side piece 6 is bent in the same direction as the outer side piece 5 along the second window hole edge 3a when assembling the inner box. Therefore, the top surface portion 2 formed in a frame shape between the window hole edge 3a and the first folding curve L1.
The outer side piece 5 and the inner side piece 6 are bent and hung down inside and outside a, and a peripheral wall having an angled cross section is formed around the window hole 3 so that the two do not overlap in a planar manner. .

Here, the inner side piece 6 is mutually restrained by the outer side piece 5, and maintains the bending posture. As the restraining means, in the present embodiment, a pair of cut lines are formed in the outer side piece portion 5, and a hook piece 9 having a wide distal end and a narrow proximal end side is formed so as to be freely bent. The hook piece 9 is formed by the inner piece 6 facing the outer piece 5.
Receiving groove forming piece 10 which is formed in the same shape as the hooking piece 9 and is bent to form a receiving groove to be able to lock the hooking piece.
Is provided.

As a result, the hooking piece 9 is folded inward together with the receiving groove forming piece 10, and the hooking piece 9 is hooked in the receiving groove formed by bending the receiving groove forming piece 10, so that the outer side piece is formed. Part 5
And the inner side piece 6 can be restrained from each other. Instead of the receiving groove forming piece 10, a receiving groove for cutting the receiving groove forming piece portion and locking the latching piece 9 may be provided directly. Thereby, when the buffer inner box is fitted into the outer box without any gap in the outer peripheral direction, the above-mentioned hooking piece 9 and receiving groove forming piece 10 do not interfere.

Next, in the present embodiment, the outer side piece 5 facing left and right in the figure extends outwardly at both ends of the first fold curve L1 which is the base end thereof, and the upper and lower sides in the figure adjacent to each other in the orthogonal direction. The auxiliary side piece 8 separated from the outer side piece 5 is formed.
The auxiliary side piece 8 is bent by a third fold curve L3 formed on the outer side piece 5 at both ends of the first fold curve L1, and is connected when the inner box is assembled. It is bent so as to be orthogonal to the outer side piece 5, and the adjacent outer side piece (having no auxiliary side piece) (hereinafter referred to as 5 ′ for convenience of explanation) and the inner side piece 6 are formed. It is inserted between. It is preferable that the auxiliary side pieces 8 are mutually restrained in such a state that they overlap with the adjacent outer side pieces 5 'with almost no gap.

In this embodiment, a pair of cut lines are formed in the outer side piece 5 'to form an auxiliary hooking piece 11 having a wide distal end and a narrow proximal end. Then, the auxiliary hooking piece 1 is attached to the auxiliary side piece 8 overlapping the outer side piece 5.
1 is formed with an auxiliary receiving groove forming piece 12 which is formed in the same shape as the auxiliary hooking piece 11 and is bent to form an auxiliary receiving groove, and which can lock the auxiliary hooking piece 11.

Thus, the auxiliary hooking piece 11 is folded inward together with the auxiliary receiving groove forming piece 12, and the auxiliary hooking piece 11 is hooked in the auxiliary receiving groove formed by bending the auxiliary receiving groove forming piece 12. The outer side piece and the auxiliary side piece 8 are restrained with almost no gap, and the corners of the inner box can be reinforced. Instead of the auxiliary receiving groove forming piece 12, a receiving groove for cutting the auxiliary receiving groove forming piece and locking the auxiliary latching piece 11 may be provided directly.

In the present invention, the means for restraining the outer side piece 5 and the inner side piece 6 and the means for restraining the outer side piece 5 and the auxiliary side piece 8 are not limited to the above embodiment. You may use the structure of the hanging piece of various shapes. When the outer side piece 5 and the inner side piece 6 are hung, the respective hook pieces 9 are hung between the outer side piece 5 and the inner side piece 6. Is also good.

In the case of FIGS. 5 and 6, each of the outer side piece 5 and the inner side piece 6 is provided with a hook piece 13, 1
The hooks 13 and 14 have hook-shaped tips, and can be bound to each other by bending to the opposing sides and hooking the hooks. As described above, the structure in which the inner side piece 6 side is used as the receiving groove and the outer side piece 5 side is provided with the hooking piece which is engaged with the receiving groove, the outer side piece 5 side and the inner side piece 6 are provided. Various structures can be used, such as a structure in which hooking pieces are provided on the sides.

In the illustrated example, a urethane film is used as the synthetic resin sheet 7 having elasticity and flexibility. However, when the synthetic resin sheet having a strength capable of holding the article G is tensioned, the article can be resiliently held. If it does, a film made of a known synthetic resin such as a PP film can be used. The outer box 20 is a rectangular parallelepiped or cubic box having a lid 21 that opens and closes the entire surface on at least one side, and stores the pair of buffer inner boxes 1 and 1 without any gap in the outer peripheral direction thereof. The size of the synthetic resin sheet is such that the article G can be squeezed and held at the hollow position.

Therefore, when packing an article G such as a TV monitor, for example, as shown in FIG.
Two buffer inner boxes 1 are fitted so that the base surface 2 faces upward, and then the article G is inserted into the synthetic resin sheet 7 of the window 3.
And another base box 1 is fitted over the article G so that the base surface portion 2 faces downward and the upper part of the article is covered with the synthetic resin sheet 7 so as to cover the top of the article. While pressing the inner box 1 downward, the lid 21 of the outer box 20 is closed to seal the outer box. As a result, the article G sandwiched between the pair of synthetic resin sheets 7, 7 is held in the hollow position in the outer box 20, so that even if an external impact is applied to the outer box 20, the article G is buffered.
Is protected.

Next, the packaging structure shown in FIG. 7 shows a different embodiment in which the synthetic resin sheet is not attached directly to the base surface, but is separately provided. That is, the inner box 1 'is the same as the inner box of the above embodiment except that the synthetic resin sheet is not provided in the window hole 3. A frame 31 corresponding to the top surface 2a of the base surface 2
A holding body 30 is provided separately from the inner box 1 ′ so that a synthetic resin sheet 32 is integrally stretched over the window body 3 so as to cover the window 3 at the center of the frame 31.

The holding body 30 may be made of a suitable material having strength such as metal, wood, plastic, or the like, without being limited to paper, so that the frame body 31 can be used repeatedly. Then, the holding body 30 is placed on the base surface portion 2 of the inner box 1 ′ so as to be stacked, and is stored in the outer box. As a result, the article is nipped by the synthetic resin sheet 32 of the holder 30, and the load applied to the article can be received by the inner box.

The buffer inner box 1 "shown in FIG. 8 has a structure in which the outer side piece 5 is not provided with an auxiliary side piece, and the other structure is the same as that of the above embodiment. In this case, although there is a difference in that there is no reinforcement at the corners, the peripheral wall has a double structure having a channel-like cross section, so that a corresponding strength can be maintained.

In each of the above embodiments, the retaining piece is formed by cutting a part of the outer side piece and the inner side piece with a cut line. May be used. For example, a structure in which an angle-shaped reinforcing piece is fitted and the open end is locked or adhered, or fixed with a pin or the like may be used. Alternatively, the outer side piece and the inner side piece may be restrained so as not to be separated from each other through a string or a wire or by being hooked.

Similarly, in the case where the auxiliary side piece is provided, means for restraining, bonding, and fixing the auxiliary side piece and the outer side piece may be similarly known. In the present embodiment, the inner side piece is provided in the same number as the outer side piece so as to be paired with the outer side piece. The structure may be such that it is restricted or fixed to the outer side piece. Also, the case where the inner box and the outer box for the buffer are square or rectangular in the plane is illustrated, but they may be polygonal. In that case, each outer side piece of the buffer inner box extends from each side, and restrains the inner side piece. In other words, various design changes can be made without departing from the spirit of the present invention.

[0023]

According to the present invention, the inner position regulating piece and the outer position regulating piece are bent at both ends of the top surface formed along the periphery of the window hole to form a peripheral wall having a channel-shaped cross section. With this, the strength of the inner box can be increased. Conventionally, the inside position regulating piece is a portion that is cut off when forming the window hole. In addition, the hook piece only needs to form a cut line in the inner position regulating piece and the outer position regulating piece, and can be folded and hooked at the time of assembly. When forming the intermediate auxiliary regulating piece, it is bent and overlapped on the adjacent outer position regulating piece side, so the corner portion of the inner box is reinforced,
This is extremely advantageous because the strength of the inner box can be further improved.

[Brief description of the drawings]

FIG. 1 is a development view showing an embodiment of a buffer inner box.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view of an assembled state of the inner box.

FIG. 4 is a cross-sectional view showing an example of an article packaging structure.

FIG. 5 is a cross-sectional view showing a different embodiment of the hook piece.

FIG. 6 is a plan view showing a hooking state of the hooking piece.

FIG. 7 is a perspective view showing a different embodiment in which a holder is separately provided.

FIG. 8 is a perspective view showing still another embodiment of the inner box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner box 2 Base surface part 2a Top surface part 3 Window hole 3a Window hole frame part 4 Fold curve 5 Outer position regulating piece 6 Inner position regulating piece 7 Synthetic resin sheet 8 Intermediate auxiliary regulating piece 9 Hooking piece 10 Receiving groove forming piece 11 Auxiliary latching piece 12 Auxiliary receiving groove forming piece 20 Outer box 30 Holder 31 Frame 32 Synthetic resin sheet

Continuing from the front page (72) Inventor Yosunori Nakayama 1-28-13 Higashiazabu, Minato-ku, Tokyo Nippon Shoji Co., Ltd. Tokyo Airlines Branch (72) Inventor Yoshimasa Kasakura 1-13-13 Higashi Jujo, Kita-ku, Tokyo (56) References JP-A-11-208727 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 77/26 B65B 55/20 B65D 81 / 10 B65D 81/07

Claims (5)

(57) [Claims] 1. A base surface portion having a window hole, a synthetic resin sheet stretched to cover the window hole and capable of holding an article,
An outer side piece that extends along the outer periphery of the base surface and is bent along a first fold curve formed at an edge of the base surface to hold the base surface in a hollow position; Boxes and
The two buffer inner boxes are opposed to each other so that the base surfaces thereof are close to each other, are housed in the outer box without any gap in the outer peripheral direction, and the article is pressed and held between a pair of opposed synthetic resin sheets. In the article packaging structure, an inner side portion extending inward from a second fold curve serving as an edge portion of the window to substantially the same length as the height of the outer side portion at the time of bending at a window hole forming portion Forming a top surface portion surrounding the window hole on the base surface portion, and the inner side piece portion substantially perpendicularly bent along the first fold curve and the second fold curve with the top surface portion interposed therebetween. A peripheral wall having a channel-shaped cross section is formed with the one side part, and the inner side part is restrained by the outer side part by the restraining means to maintain a posture at the time of bending, and as the restraining means, A pair of cut lines are formed on the outer side piece, and the hooking piece whose tip is set wide and the base end is narrow is formed freely. A receiving groove or a receiving groove which is formed in the same shape as the receiving groove or the receiving piece for locking the retaining piece at a position corresponding to the above-mentioned retaining piece in the inner side one part facing the outer side part. A packaging structure for an article, comprising a receiving groove forming piece which is formed to be able to lock the hooking piece. 2. A base surface portion having a window hole, a synthetic resin sheet stretched over the window hole and capable of holding an article,
An outer side piece that extends along the outer periphery of the base surface and is bent along a first fold curve formed at an edge of the base surface to hold the base surface in a hollow position; Boxes and
The two buffer inner boxes are opposed to each other so that the base surfaces thereof are close to each other, are housed in the outer box without any gap in the outer peripheral direction, and the article is pressed and held between a pair of opposed synthetic resin sheets. In the article packaging structure, an inner side portion extending inward from a second fold curve serving as an edge portion of the window to substantially the same length as the height of the outer side portion at the time of bending at a window hole forming portion Forming a top surface portion surrounding the window hole on the base surface portion, and the inner side piece portion substantially perpendicularly bent along the first fold curve and the second fold curve with the top surface portion interposed therebetween. A peripheral wall having a channel-shaped cross section is formed so that the two do not overlap in a planar manner with the one side part, and the inner side part is restrained by the outer side part by restraining means to maintain a posture at the time of bending. A locking piece is formed on each of the outer side piece and the inner side piece as the restraining means so as to be freely bendable. The stop piece has a hook-shaped tip, and the pair of hook pieces are bent to the opposite side to lock the hook portion, thereby mutually restraining the inner piece and the outer piece. A packaging structure for an article, comprising: 3. The cushioning inner box is made of a single sheet of corrugated cardboard or paperboard in the form of a square or a rectangle when unfolded, and outer side pieces formed along each side of the outer periphery of the base surface face each other. Auxiliary side pieces that extend in the direction of extension from both ends of the first fold curve, which are the base ends of the pair of outer side pieces, and that are separated from the adjacent outer side pieces by cut lines are connected to each other. The auxiliary side piece is bent at right angles to the outer side piece to which the auxiliary side piece is connected when assembling the buffer inner box, so that the adjacent outer side piece faces the outer side piece. The auxiliary side piece is fitted by the auxiliary restraining means in a state where the adjacent outer side piece and the auxiliary side piece are overlapped with each other. 3. The article packaging structure according to claim 1, wherein the article is held in a bent state while being restrained by the member. 4. 4. The article packaging structure according to claim 1, wherein a synthetic resin sheet is adhered to the base surface of the buffer inner box to cover the window hole. 5. A synthetic resin sheet is stretched over a frame portion of a holding member formed separately from the buffer inner box, and the holding member is
The article packaging structure according to claim 1, wherein the article packaging structure is stacked on the base surface of the buffer inner box and stored in the outer box.