JP3039105U - Shaped paper tube - Google Patents

Abstract

(57) [Abstract] [Problem] Light and easy to handle, excellent in pressure resistance, less likely to be damaged, durable and inexpensive to supply, and can be reused and reused even after being used to secure resources and protect the environment. Providing useful recyclable shaped paper tubes. A shaped paper tube according to the present invention is a flat or spirally wound multiple band-shaped base paper, which has excellent pressure resistance and is not easily damaged, and has a chevron shape, groove shape, I shape, T shape, Z shape, H shape. A shaped paper tube 1 having a cross-sectional shape such as that having a space 2 having the same shape as the outer peripheral shape inside the shaped paper tube 1 was developed and adopted.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 INDUSTRIAL APPLICABILITY The present invention is a structural member for a building used for a simple building or a simple partition panel used as a shade tent, a structural member for furniture such as a storage table or a cabinet for placing various articles outdoors or indoors, and This relates to a concrete formwork material that can be used after being waterproofed, or a shaped paper tube that can be used in a wide range such as packaging reinforcements and cushioning materials used during the transportation of goods that are sensitive to shock and vibration. is there.

The “shaped paper tube” referred to in the present invention means a bar steel formed into various cross-sectional shapes by rolling steel by a rolling machine in the field of steel excluding round paper tubes and square paper tubes, for example, Angle steel, channel steel, I-shape steel, T-shape steel, Z-shape steel, H-shape steel, etc. are collectively referred to as those composed of paper tubes having the same cross-sectional shape as shape steel.

[0003]

[Prior art]

 Conventionally, a paper tube is mainly formed into a round paper tube or a square paper tube, and there is no paper tube formed into a special shape such as a mountain shape, a groove shape, an I shape, a T shape, a Z shape, or an H shape. It was As such a special shape, as shown in FIGS. 4A, 4B and 4C, a plurality of paperboards cut into a mountain shape, a groove shape and an I shape are polymerized to form a mountain interleaf paper 10 or a groove interleaf paper 20. Some of them were formed on I-type interleaving paper 30 or the like.

This mountain-shaped interleaf paper, groove-shaped interleaf paper, or I-shaped interleaf paper is a structural member for buildings such as a simple building used as a awning tent in the summer when the sun is strong and a simple partition panel for partitioning the interior of the building or It is used as a cushioning material used for carrying and transporting furniture structural members such as shelves, decorative shelves, and display shelves that place various kinds of goods indoors and outdoors, or when transporting goods that are sensitive to shock and vibration.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, these mountain-shaped interleaving paper, groove-shaped interleaving paper, and I-shaped interleaving paper, which are formed by superposing and pasting a plurality of paperboards, are used as wastepapers for recycling after use. Since it can be reused, it tends to be widely used recently, but in order to obtain a thick one, it is necessary to stack several paperboards, which requires a large number of steps in manufacturing, becomes heavy, and becomes a member. Since it has no elasticity, it was easily damaged.

For example, as shown in FIG. 4A, to make a chevron interleaving paper 10 having a size of L50 × 50 × 6K of a general size, if a paper board having a thickness of 1 mm is used, The six folds must be laminated together, for which the next six boards must be provided. Outer part L50 × 50 × 1 Second part L49 × 49 × 1 Third part L48 × 48 × 1 Fourth part L47 × 47 × 1 Fifth part L46 × 46 × 1 Inner part L45 × 45 × 1

[0007] As described above, since the work for joining is troublesome and a large amount of material is required, it is economically problematic, and it is heavy and inferior in elasticity. There is a problem that it is not suitable as a structural member or a packaging reinforcing material or cushioning material used during transportation and transportation.

Since the present invention has been researched and developed with the object of solving the above problems, it is light and easy to handle, has excellent pressure resistance, is not easily damaged, and is durable and inexpensive to supply. The purpose of the present invention is to provide a recyclable shaped paper tube that can be reused and reused even after it has been used and is useful for resource conservation and environmental conservation.

[0009]

[Means for Solving the Problems]

 As a means for solving the above problems and achieving the object, the present invention has a flat shape or a spiral shape wound by a plurality of strip-shaped base papers, which has excellent pressure resistance and is not easily damaged. , A Z-shaped, H-shaped, etc. cross-section shaped tube having a space portion having the same shape as the outer circumferential shape provided inside the shaped tube, Adopted.

[0010]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to A, B, C, D, E, and F of FIG. 1 of the accompanying drawings. In each drawing, 1 is a strip-shaped base paper coated with an adhesive on the back surface. Vertical wall surface 1a and horizontal wall surface 1b that are flat or spirally wound in multiple layers are integrally connected to each other and have excellent pressure resistance and are not easily damaged, such as mountain shape, groove shape, I shape, T shape, Z shape, and H shape. A paper tube with a cross-sectional shape. A space portion 2 is formed inside the shaped paper tube 1 between the vertical wall surfaces 1a, 1a and the horizontal wall surfaces 1b, 1b which face each other, and the space portion 2 has the same shape as the outer peripheral shape. .

For example, in the chevron-shaped paper tube of FIG. 1A, the thickness taw of the vertical wall surface 1a, the inner wall surface distance tas of the space 2 and the external wall thickness ta have the following relationship. ta = 2 × taw + tas Therefore, assuming that the length of one side is A, the paper tube 1 is displayed with the following symbol. La x A x ta

In order to use the shaped paper tube 1 configured as described above, for example, as a constituent member of a simple display shelf as shown in FIG. 2, the elongated shaped paper tube 1 is used as a side pillar and the side thereof is used. A simple display shelf is formed by forming through holes 4 at appropriate intervals in the wall surface 3 and inserting the projections 6 and 6 provided on both end surfaces of the shelf board 5 made of paperboard or cardboard into the through holes 4. Thus, various items can be placed. This shaped paper tube 1 can be used not only as a simple display shelf but also as a structural member of a simple building used as a shade tent, a structural member of a fitting such as a partition wall, and if waterproofed, it can be made of concrete. It can also be used as a mold material for pouring and can be used over a wide range.

As another example, as shown in FIG. 3, it can be used as a packaging reinforcing material when transporting and transporting the vibrating article G. In that case, the shaped paper tube 1 is preliminarily used in a corrugated cardboard box. It can be used as a packaging strengthening material by placing it in the four corners of B and storing the vibration-inhibiting article G inside it, and can protect the vibration-inhibiting article G from shocks applied from all directions and transport it safely. It is possible. In this case, the case where it is used as a packaging reinforcing material at the four corners of the vibration-inhibiting article G has been described, but it can also be used as a cushioning material inserted between vibration-inhibiting articles.

In each of the above embodiments, the chevron-shaped paper tube is described, but the present invention is not limited to this, and various shapes such as a groove shape, an I-shape, a T-shape, a Z-shape, and an H-shape can be used. Needless to say, a shaped tube may be used, and various design changes can be made without departing from the scope of the present invention and the object of the present invention.

[0015]

[Effect of the invention]

 As described above, the present invention has a cross-sectional shape such as a mountain shape, a groove shape, an I shape, a T shape, a Z shape, and an H shape, which are flat-wound or spirally wound with a plurality of strip-shaped base paper and have excellent pressure resistance and are not easily damaged. The shape of the envelope is a packaging box that encloses a device that is resistant to shocks because it is lightweight and elastic because it has a space inside the shape that has the same shape as the outer peripheral shape. Not only can it be used as a packaging reinforcing material or cushioning material for buildings, but also as a structural member for buildings such as simple buildings and partition panels, or a structural member for furniture that accepts simple display shelves for mounting various items at exhibition halls, etc. In this case, it is light and easy to assemble and easy to handle when disassembling, can be supplied at low cost, and can be reused as recycled paper after used, which is useful for resource conservation and environmental conservation.

[Brief description of the drawings]

1A to 1F are perspective views showing various shaped paper tubes of the present invention.

FIG. 2 is a perspective view showing a state where the shaped paper tube is used as a structural member of a simple display shelf.

FIG. 3 is a cross-sectional view of a shaped paper tube used as a packaging reinforcing material.

4A to 4C are perspective views of various packing cushioning materials made of conventional paperboard.

[Explanation of symbols]

 1 Shaped paper tube 2 Space part

Claims (1)

[Utility model registration claims] 1. A paper tube having a cross-sectional shape such as a chevron shape, a groove shape, an I shape, a T shape, a Z shape, and an H shape, which is wound flatly or spirally with a plurality of strip-shaped base papers and has excellent pressure resistance and is not easily damaged. The shaped paper tube is characterized in that a space portion having the same shape as the outer peripheral shape is provided inside the shaped paper tube.