JP5377181B2 - Packing container with built-in buffer function - Google Patents

Description

  The present invention relates to a shock absorbing function built-in packaging container in which a shock absorbing function is integrally provided inside the container.

  In the conventional packaging container, a buffer material formed separately from the container is inserted into the container to protect the contents. In addition, there are some in which a buffering bottom and a bottle bottom support plate provided inside the container are provided integrally with the container (see, for example, Patent Documents 1 and 2). In some cases, the inner lid plate is curved according to the size of the contents (for example, see Patent Document 3). Moreover, there also exists what provided the pair of support piece which swells and is located inside the box at the upper part of a bottom cover piece (for example, refer patent document 4).

Japanese Patent Application Laid-Open No. 08-192831 JP-A-10-291522 JP-A-11-321854 JP 2008-143565 A

  However, in the techniques of Patent Documents 1 to 3, the buffer bottom, the bottle bottom support plate, the inner lid plate portion are supported by the standing support legs, the buffer standing wall pieces, and the support plate portion. The bottle bottom support plate and the inner lid plate itself could not move in the height direction and did not perform a sufficient buffer function. Moreover, even if it is the structure of patent document 4, the height position of a support piece cannot change a lot, and it cannot be said that it is a sufficient buffer function.

  The present invention solves the above-mentioned problems, and an object of the present invention is to incorporate a buffer function that can perform a sufficient buffer function by allowing the bottom plate on which the contents are placed to be elastically changeable in height. It is intended to provide a packaging container.

  In order to achieve the above object, the first configuration of the packaging container with a buffer function according to the present invention is a packaging with a cushioning function having a polygonal cross section that can be bent in the circumferential direction of the container. In the container, a first buffer piece that extends to the lower end portion of the side plate so as to be able to be folded back inside the container than the side plate, and has a length equal to or shorter than the length of the side plate, and an upper end portion of the first buffer piece A second buffer piece that is extended to the inside of the container so as to be folded back from the first buffer piece, and has a length shorter than the length of the first buffer piece, and a lower end portion of the second buffer piece When the force acting on the contents placed on the bottom plate acts on the bottom plate, the first and second buffer pieces are elastically curved. The height position of the bottom plate can be freely changed.

  Moreover, the 2nd structure of the packaging container with a buffer function which concerns on this invention is the said 1st structure. WHEREIN: The both ends of the bending side of the said 1st buffer piece and the said 2nd buffer piece are predetermined dimensions. A pair of first cut portions cut by only a distance between the bent side connecting portion and the pair of first cut portions and perpendicular to the bent sides. When the force acting on the contents placed on the bottom plate acts on the bottom plate, the pair of second cut portions in which the second buffer piece is cut by a predetermined dimension, The connecting portion continued to the bent side connecting portion is elastically curved so that the height position of the bottom plate can be changed.

  Moreover, the 3rd structure of the packaging container with a buffer function which concerns on this invention adjusts the elastic force of the said connection part by adjusting the length of the said 1st cutting part in the said 2nd structure. And

  Moreover, the 4th structure of the packaging container with a buffer function which concerns on this invention is a variable position of the height direction of the said baseplate by adjusting the length of the said 2nd cutting part in the said 2nd, 3rd structure. It is characterized by adjusting the range.

  According to the 1st structure of the packaging function built-in packaging container which concerns on this invention, if the force which acts on the content mounted on a bottom plate acts on a bottom plate, a 1st, 2nd buffer piece will elastically curve. By making the height position of the bottom plate freely changeable, the first and second buffer pieces can be elastically bent so that the bottom plate can function as a shock absorber, and the contents are damaged. Etc. can be prevented. In addition, since the cover plate, the side plate, the first and second buffer pieces, and the bottom plate are integrally formed continuously, it is not necessary to prepare the buffer material as a separate member, and the packaging work can be performed by automatic packaging.

  According to the 2nd structure of the packaging function built-in packaging container which concerns on this invention, if the force which acts on the content mounted on a baseplate acts on a baseplate, the connection part continued to the connection part of a bending side will be provided. It is possible to change the height position of the bottom plate by elastically bending, and according to the third configuration, the elastic force of the connecting portion can be adjusted by adjusting the length of the first cutting portion. Can do. That is, if the length of the first cut portion is shortened, the elastic force of the connecting portion is increased, and if the length of the first cut portion is increased, the elastic force of the connecting portion can be reduced. Thereby, if the length of the 1st cutting part is adjusted according to the inertial force which arises by the weight of the contents, an optimal buffer function can be exhibited.

  Moreover, according to the 4th structure of the packaging container with a buffer function which concerns on this invention, if the length of a 2nd cutting part is adjusted, the variable position range of the height direction of a baseplate can be adjusted. That is, if the length of the second cutting portion is increased, the bottom plate can be vibrated with a long stroke in the vertical direction, and if the length of the second cutting portion is shortened, the bottom plate is vibrated with a short stroke in the vertical direction. I can do it. Thereby, the length of the 2nd cutting part can be adjusted according to the height dimension of the contents.

(A), (b) is a figure which shows the front and back of the expanded view of the packaging container with a buffer function which concerns on this invention. (A)-(d) is a figure explaining the assembly process of the packaging container with a buffer function which concerns on this invention. It is a figure explaining the buffer function of the packaging container with a buffer function which concerns on this invention, (b) is a top view which shows the state before putting the contents, (a) is AA sectional drawing of (b). It is a figure explaining the buffer function of the packaging container with a buffer function which concerns on this invention, (b) is a top view which shows the state which put the contents, (a) is BB sectional drawing of (b).

  An embodiment of the packaging container with a built-in buffer function according to the present invention will be specifically described with reference to the drawings. 1 to 4, reference numeral 1 denotes a packaging container 1 with a built-in cushioning function having a polygonal cross section that can be bent in a circumferential direction of the container 1 with a side plate 3 having a cover plate 2 that opens and closes on the upper surface. Although the packaging function built-in packaging container 1 of the present embodiment is an example of a hexahedron, it can also be configured as a cushioning function built-in packaging container 1 having a polygonal cross section provided with three or more side plates 3. An insertion piece 4 is connected to the end of the cover plate 2, and a flap piece 5 is connected to each of the side plates 3 arranged on both sides of the side plate 3 to which the cover plate 2 is connected. A fixing piece 9 is provided on the side plate 3 at the end where the flap piece 5 is provided.

  First buffer pieces 6 are provided at the lower ends of the four side plates 3 so as to be folded back to the inside of the container 1 from the side plates 3 and have a length equal to or shorter than the length of the side plates 3. ing. Further, the upper ends of the respective first buffer pieces 6 are extended so as to be folded back inside the container 1 with respect to the first buffer pieces 6, and have a length shorter than the length of the first buffer pieces 6. Each of the second buffer pieces 7 is provided.

  A pair of first cut portions 11 cut by a predetermined dimension are formed at both ends of the bent sides 10 of the first buffer pieces 6 and the second buffer pieces 7, respectively. The first buffer piece 6 and the second buffer piece 7 pass through respective boundaries between the connecting portion 12 of the side 10 and the pair of first cut portions 11 and are orthogonal to the bent side 10. A pair of second cut portions 13 cut by dimensions are formed.

  The second buffer pieces 7 are connected to each other by connecting pieces 14a and 14b so that they can be bent. Engaging pieces 15 are provided on the second buffer pieces 7 at both ends. In addition, a bottom plate 8 that is foldably extended is provided at the lower end of each second buffer piece 6. The bottom plate 8a at one end is formed in a square shape corresponding to the width dimension of the side plate 3, and is disposed on the lowermost surface. The other bottom plate 8 has a slightly smaller outer shape than the bottom plate 8a at one end and doubles as a flap piece. An insertion piece 16 is connected to the end of the bottom plate 8a at one end, and the insertion hole 18 formed in the bent side 17 of the second buffer piece 7 and the bottom plate 8 facing this is inserted into the insertion hole 18. The insert 16 is inserted and the bottom plate 8a is fixed.

  When the packaging container 1 with a built-in buffer function is assembled, as shown in FIGS. 2 (a) and 2 (b), the first buffer piece 6 is valley-folded along the bent side 19, and the second The buffer piece 7 is mountain-folded along the bent side 10 and the first and second buffer pieces 6 and 7 are erected along the inner surface of the side plate 3. And the side plate 3 is valley-folded along the bent side 20 in the circumferential direction of the packaging container 1 with a built-in buffer function, and the fixing piece 9 is fixed to the outer surface of the opposing side plate 3 by bonding or the like (see FIG. 2 (c)). . Then, the bottom plate 8a is fixed by inserting the insertion pieces 16 provided on the bottom plate 8a on the bottom surface into the insertion hole 18 while overlapping the bottom plates 8 so that the bottom plate 8a becomes the bottom surface (see FIG. 2D). ). Thereafter, an inner box is formed by the first and second buffer pieces 6 and 7 erected along the inner surface of the side plate 3, and as shown in FIGS. 3 and 4, the first and second buffer pieces 6 and 7 are formed. The contents 21 are accommodated in a hollow interior formed by the bottom plate 8 and the bottom plate 8. For fixing the bottom plate 8a, various fixing methods such as bonding can be applied in addition to fixing the bottom plate 8a by inserting the insertion piece 16 into the insertion hole 18 as in this embodiment.

  When the force acting on the contents 21 placed on the bottom plate 8 acts on the bottom plate 8, the first and second buffer pieces 6 and 7 are elastically bent as shown in FIG. The height position of the bottom plate 8 can be changed freely. More specifically, the connecting portion 22 connected to the connecting portion 12 of the bent side 10 is elastically curved so that the height position of the bottom plate 8 can be changed. As a result, the connecting portion 22 is elastically bent in accordance with the inertia force generated by the weight of the contents 21, and the height position of the bottom plate 8 is changed, so that a buffer function can be exhibited.

  Here, if the length of the first cutting portion 11 is adjusted, the elastic force of the connecting portion 22 can be adjusted. That is, if the length of the first cutting part 11 is shortened, the elastic force of the connecting part 22 can be increased, and if the length of the first cutting part 11 is increased, the elastic force of the connecting part 22 can be reduced. Thereby, if the length of the 1st cutting part 11 is adjusted according to the inertial force which arises by the weight of the contents 21, an optimal buffer function can be exhibited.

  Further, if the length of the second cutting portion 13 is adjusted, the variable position range of the bottom plate 8 in the height direction can be adjusted. That is, if the length of the second cutting portion 13 is increased, the bottom plate 8 can be vibrated with a long stroke in the vertical direction, and if the length of the second cutting portion 13 is shortened, the bottom plate 8 is shortened in the vertical direction. It can be vibrated with a stroke. Thereby, the length of the second cutting portion 13 can be adjusted according to the height dimension of the contents 21.

  As an application example of the present invention, the present invention can be applied to a packaging container with a built-in buffer function in which a buffer function is integrally provided inside the container.

DESCRIPTION OF SYMBOLS 1 ... Packing container 2 with a buffer function ... Cover plate 3 ... Side plate 4 ... Insert piece 5 ... Flap piece 6 ... 1st buffer piece 7 ... 2nd buffer piece 8, 8a ... Bottom plate 9 ... Fixed piece
10… Folded side
11 ... 1st cutting part
12… Connection
13 ... 2nd cutting part
14a, 14b ... connecting piece
15… engaging piece
16… insert
17… Folded side
18… insertion hole
19… Folded side
20… Folded side
21… Contents
22… Connecting part

Claims (4)

In the packaging container with a built-in cushioning function having a polygonal cross section that can be bent in the circumferential direction of the container with a side plate having a cover plate that opens and closes on the upper surface,
A first buffer piece that extends to the lower end of the side plate so as to be folded back inside the container than the side plate, and has a length equal to or shorter than the length of the side plate;
A second buffer piece that is extended at the upper end of the first buffer piece so as to be folded back inside the container than the first buffer piece, and has a length shorter than the length of the first buffer piece;
A bottom plate that is foldably extended to the lower end of the second buffer piece;
Have
When the force acting on the contents placed on the bottom plate acts on the bottom plate, the first and second buffer pieces are elastically curved to change the height position of the bottom plate. A packaging container with a built-in buffer function. A pair of first cut portions in which both ends of the bent sides of the first buffer piece and the second buffer piece are cut by a predetermined dimension;
The first shock-absorbing piece and the second shock-absorbing piece pass through the respective boundaries between the bent-side connecting portion and the pair of first cut portions and are perpendicular to the bent side and have a predetermined dimension. A pair of cut second cut portions;
Have
When a force acting on the contents placed on the bottom plate acts on the bottom plate, the connecting portion continued to the connecting portion of the bent side is elastically bent to freely change the height position of the bottom plate. The packaging container with a built-in buffer function according to claim 1. The packaging container with a built-in shock-absorbing function according to claim 2, wherein the elastic force of the connecting part is adjusted by adjusting the length of the first cutting part. The packaging container with a built-in buffer function according to claim 2 or 3, wherein the variable position range in the height direction of the bottom plate is adjusted by adjusting the length of the second cutting portion.