JP3008804U - Paper tube support - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a paper tube support which is inexpensive, has a simple structure, and has sufficient strength, and can be easily discarded after use. A sheet material, comprising a polygonal portion, a plurality of trapezoidal portions which are connected to the polygonal portion with each side of the polygonal portion as an upper base, and a fixed portion which is connected to a lower bottom of the trapezoidal portion. A base material and a sheet material, which is also a frame material provided with an opening of the same shape as a polygon having the lower bottom of the trapezoidal portion as each side, and each side of the polygonal portion of the base material described above. Each trapezoid is formed by bending each trapezoidal portion as a fold line to form a hollow polygonal frustum-shaped support portion, and fitting the support portion into the opening of the frame member, and forming a side wall of the frame member and the support portion. Each fixed part folded back from the part was joined. The polygonal part and the opening are hexagonal, and the trapezoidal part is six,
A hollow hexagonal frustum-shaped support portion was formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paper tube support for suspending a product such as a plastic film or paper wound on a paper tube in a packaging container such as a box so as to be suspended.

[0002]

[Prior art]

 Conventionally, products such as plastic film and paper wrapped around a paper tube have a flat plate with a shape almost the same as the side end wall of the container in order to prevent the product surface from contacting the inner surface of the container and damaging it during transportation. -Shaped frame members (substrates) are used as a set of two paper core supports that are provided with protruding cylindrical support parts, and the support parts of each paper core support are fitted to both open ends of the paper core. By storing the product in the container in this state, the paper tube around which the product was wrapped was suspended in the container.

As such a paper tube support, foamed polystyrene and other plastic molded products are generally used because they require a certain strength and are easy to process, but these molded products are There is a problem that when a product is unpacked and used up, it cannot be easily discarded, and there is a growing demand for alternative products as well as deepening awareness of conservation of the natural environment.

[0004]

[Problems to be solved by the device]

 In view of the above-mentioned problems of the prior art, the present invention provides a paper tube support that is inexpensive, has a simple structure, and has sufficient strength, and can be easily discarded after use. It is intended.

[0005]

[Means for Solving the Problems]

 A sheet material, which is composed of a polygonal portion, a plurality of trapezoidal portions connected to the polygonal portion with each side of the polygonal portion as an upper base, and a fixed portion connected to a lower bottom of the trapezoidal portion, And a sheet material which is also a frame material having an opening of the same shape as a polygon with the bottom of the trapezoidal part as each side, and each side of the polygonal part of the base material as a polygonal line. Each trapezoidal portion is bent to form a hollow polygonal frustum-shaped support portion, and the support portion is fitted into the opening portion of the frame member, and each trapezoidal portion forming a side wall of the frame member and the support portion. The fixed parts that were folded back were joined together. A hollow hexagonal truncated pyramid-shaped support portion was formed by forming the polygonal portion and the opening portion into a hexagonal shape and using six trapezoidal portions.

[0006]

[Action]

 The support portion of the paper tube support has a triangular aggregate structure. Moreover, the corners of the supporting portion, that is, the hypotenuses of the polygonal frustum shape are arranged so as to be positioned in the main load direction. Then, two paper core supports are used as a set, and if the support parts of each paper core support are fitted into both open ends of the paper core and housed in the packaging container, the paper core is supported suspended in the container. Be done.

[0007]

【Example】

 An example of the embodiment will be described with reference to the drawings.

FIG. 1 is a perspective view showing a paper tube support 1 according to an embodiment of the present invention and a forming process thereof. In the figure, a paper tube support 1 is composed of a base material 2 made of cardboard and a frame material 3.

The base material 2 has a regular hexagonal portion 10 arranged in the center, and six trapezoidal portions 11, 12, 13, 14, which are connected to the regular hexagonal portion 10 with each side of the regular hexagonal portion 10 as an upper base a. 15 and 16 and six fixing portions 21, 22, 23, 24, 25 and 26 which are connected to the lower bottoms b of the trapezoidal portions, respectively, and are formed by punching thick paper with a punching die. Further, the upper base a and the lower base b of each trapezoidal part are fold lines, and the folds are processed by a pressing die and placed.

The frame member 3 has a square shape having substantially the same shape as the both side end walls 6a, 6a of the packaging box 6 shown in FIGS. 2 and 3, and the length of one side is in the center thereof as described above. An opening 30 having a regular hexagonal shape equal to that of the lower bottom b is provided, and the frame material 3 is also formed by punching with a punching die like the base material 2.

Then, as indicated by 2'in FIG. 1, each trapezoidal portion 11, 12, 13, 14, 15, 16 is bent along each side (upper base a) of the regular hexagonal portion 10 of the substrate 2. To form a hollow regular hexagonal truncated pyramid-shaped support portion 4, and the support portion 4 is fitted into the opening 30 of the frame member 3, and each trapezoidal portion 11, 12, 13 forming the side wall of the support portion 4 is formed. , 14, 15, 16 are fixed parts 21, 22, 23, 24, 25, 26 folded back along the lower bottom b, and the fixed parts 21, 22, 23, 24, 25, 26 folded back are frame members. The paper tube support 1 is formed by sticking to 3 and integrating. These steps can be easily performed by mechanical means such as a mold or a plunger.

The six fixed portions 21, 22, 23, 24, 25, 26 of the paper tube support 1 are formed on the frame member 3 as the shapes of the respective parts obtained by dividing the frame member 3 into hexagonal shapes as shown in the figure. The outer edge is made to coincide with the frame material 3 when laminated, and the fixed portion 21, 22, 23, 24, 25, 26 and the frame material 3 form the substrate 5 reinforced in two layers. are doing.

2 and 3 show the usage of the paper tube support 1. In the figure, two paper tube supports 1 are used as one set, and the paper tubes 7 are inserted into the paper tubes 7 with the support portions 4 of the paper tube supports 1 and 1 fitted into both open end portions 7a and 7a of the paper tube 7. When inserted into the box 6 together with the tube supports 1 and 1, the respective paper tube supports 1 and 1 are fixed to both end walls 6a and 6a of the box 6, and the paper tube 7 is suspended in the box 6 as shown in FIG. Supported. In FIG. 3, 8 is a product wound around the paper tube 7, 9 is a covering material for covering the surface of the product 8, and the end of the covering material 9 is inside the opening end 7a of the paper tube 7. And is locked by the support portion 4 of the paper tube support 1 that fits into the opening end portion 7a.

The support portion 4 of the paper tube support 1 configured as described above has a triangular aggregate structure, and has sufficient bending strength and shear strength while using paper as a material. At this time, it is the main load direction that acts particularly on the support portion 4. It is advantageous in terms of strength to arrange the paper tube support 1 so that the corners of the supporting portion 4 shown in FIG. 1, that is, the hypotenuses c that form the shape of a regular hexagonal pyramid are located in the vertical direction of the box 6.

Further, since the substrate 5 is composed of two layers of the frame member 3 and the fixed portions 21, 22, 23, 24, 25 and 26 attached to the frame member 3, sufficient buckling strength is obtained. However, a member having the same shape as the frame member 3 may be attached to the other surface of the fixed portion 21, 22, 23, 24, 25, 26 for reinforcement.

Further, since the support portion 4 of the paper tube support 1 has a hollow regular hexagonal truncated pyramid shape, the paper tube support 1 can be fitted with each other and overlapped with each other, so that before (or after) use. It is possible to stock a large number of paper tube supports 1 in a small space. Also, since it is made of paper, it can be easily discarded by incineration, etc., after it has been unpacked and used.

In the above-mentioned embodiment, an example in which the supporting portion 4 is formed in the shape of a regular hexagonal pyramid is shown, but the present invention is not limited to this, and an arbitrary inscribed in a cylindrical paper tube is possible. It is possible to have a polygonal frustum shape (for example, a regular square pyramid frustum shape, etc.). However, in a triangular truncated pyramid or a quadrangular truncated pyramid, the angle (oblique side) becomes an acute angle, which makes it easier to crush, and in the octagonal truncated pyramid and above, the width of the trapezoidal portion (11 to 16) forming the side wall is narrowed and the supporting portion is Since the strength is weakened, the regular hexagonal frustum shape in which the angle is an obtuse angle (about 120 °) is most advantageous in terms of the structure, while widening the width of each trapezoidal portion 11 to 16.

[0018]

[Effect of device]

 As described above, the paper tube support of the present invention is a sheet material, and includes a polygonal portion, a plurality of trapezoidal portions that are continuous with the polygonal portion with each side of the polygonal portion as an upper base, and the trapezoidal portion. A base material consisting of a fixed part connected to the lower bottom of the trapezoid, and a sheet material which is the same as the frame material having an opening of the same shape as a polygon having the lower bottom of the trapezoidal part as each side, A hollow polygonal frustum-shaped support portion is formed by bending each trapezoidal portion with each side of the polygonal portion of the base material as a fold line, and the support portion is fitted into the opening of the frame member and the frame is formed. Since the material and the fixed parts that are folded back from the trapezoidal parts that form the side walls of the support part are joined, it is possible to easily and inexpensively manufacture, and it is possible to obtain the necessary and sufficient strength despite the simple structure. However, many can be stored in a small space by stacking them when not in use An ability, and after use Ri by the the use of the paper material such as thick paper as a sheet material can be easily disposed of such as by incineration. Further, since the hollow hexagonal pyramid trapezoidal support portion is formed by forming the polygonal portion and the opening portion into hexagons and six trapezoidal portions, the corners of the support portion are hard to be crushed, and the trapezoidal portion Wide width can be secured and maximum strength can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a paper tube support according to an embodiment of the present invention and a forming process thereof.

FIG. 2 is a perspective view showing a usage state of the paper tube support according to the embodiment of the present invention.

FIG. 3 is a side sectional view showing a usage state of the paper tube support according to the embodiment of the present invention.

[Explanation of symbols]

 1 Paper tube support 2 Base material 3 Frame material 4 Support part 5 Substrate 6 Box (packing container) 7 Paper tube 10 Regular hexagonal part 11, 12, 13, 14, 15, 16 Trapezoidal part 21, 22, 23, 24, 25,26 Fixed part a Upper base (side) b Lower base c Hypotenuse (corner)

Claims (2)

[Scope of utility model registration request] 1. A sheet material, comprising: a polygonal portion, a plurality of trapezoidal portions connected to the polygonal portion with each side of the polygonal portion as an upper base, and a fixed portion connected to a lower bottom of the trapezoidal portion. And a sheet material, which is also a sheet material, and includes a frame material having an opening of the same shape as a polygon whose sides are the bottom of the trapezoidal portion. Each trapezoidal portion is bent with a side as a fold line to form a hollow polygonal frustum-shaped support portion, and the support portion is fitted into the opening portion of the frame member and forms a side wall of the frame member and the support portion. A paper tube support characterized by joining each fixed part that is folded back from each trapezoidal part. 2. The paper tube support according to claim 1, wherein the polygonal portion and the opening are hexagonal, and the trapezoidal portion is six to form a hollow hexagonal frustum trapezoidal supporting portion.