Packaging buffer

Abstract

A packaging buffer is proposed that has a plane perpendicular to both the front and back surfaces, can be adhered to the corners of the product to be packaged and the inside of the packaging box, and can be returned to a flat plate when not in use, so it does not take up much space. 【Solution means】 A packaging buffer made of a flat foam such as polyethylene in a bent shape, comprising a left buffer body 2 and a right buffer body 3 separated by a half-cut surface 1 of the flat foam, a hinge 4 of the half-cut surface 1 formed by leaving a remainder on the back surface side of the flat foam, and an isosceles trapezoidal protrusion 5 formed to protrude from the half-cut surface 1 toward the right buffer body 3 side. The long side and the hypotenuse of the isosceles trapezoid forming the protrusion 5 are full-cut surfaces 6. When used as a packaging buffer, the right buffer body 3 is bent 90 degrees around the hinge 4, and the back surface of the protrusion 5 and a part of the half-cut surface 1 of the right buffer body 3 are in contact, thereby maintaining the 90-degree bent shape of the flat foam.

Description

Technical Field

[0001] The present invention relates to a packaging buffer made of a flat foam such as polyethylene.

Background Art

[0002] Packaging buffers made of polyethylene or the like are known.

Summary of the Invention

Problems to be Solved by the Invention

[0003] It takes up space when not in use.

[0004] Therefore, the present invention proposes a packaging buffer that has planes perpendicular to both the front and back surfaces, can be closely attached to the corners of the product to be packaged and the inside of the packaging box, and can be returned to a flat plate when not in use, so it does not take up space.

Means for Solving the Problems

[0005] The packaging buffer according to the first invention is a packaging buffer formed in a shape where a flat foam such as polyethylene is bent, and includes a left buffer body and a right buffer body separated by a half-cut surface of the flat foam, a hinge of the half-cut surface formed by leaving a remainder on the back surface side of the flat foam, and an isosceles trapezoidal protrusion formed to protrude from the half-cut surface toward the right buffer body side. The long side and the hypotenuse of the isosceles trapezoid forming the protrusion are full-cut surfaces. When used as a packaging buffer, the right buffer body is bent 90 degrees around the hinge, and the back surface of the protrusion and a part of the half-cut surface of the right buffer body abut against each other, so that the 90-degree bent shape of the flat foam is maintained.

[0006] The packaging buffer according to the first invention, when used as a packaging buffer, the right buffer body is bent 90 degrees around the hinge, and the back surface of the protrusion and a part of the half-cut surface of the right buffer body abut against each other, so that the 90-degree bent shape of the flat foam is firmly maintained.

[0007] The cushioning material for packaging according to the second invention is characterized in that the corner portion between the long side and the hypotenuse of the isosceles trapezoid forming the protruding portion is chamfered with an R.

[0008] Since the corner portion between the long side and the hypotenuse of the isosceles trapezoid forming the protruding portion of the cushioning material for packaging according to the second invention is chamfered with an R, it can be smoothly bent without being caught.

[0009] The cushioning material for packaging according to the third invention is characterized in that the height between the long side and the short side of the isosceles trapezoid forming the protruding portion is equal to the thickness of the flat foam.

Effect of the Invention

[0010] Since the cushioning material for packaging according to the present invention forms planes perpendicular to both the front and back surfaces, it can be closely attached to the corners of the product to be packaged and the inside of the packaging box. Also, when not in use, it can be returned to a flat plate and does not take up much space.

Brief Explanation of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Mode for Carrying Out the Invention

[0012] FIG. 1 is a perspective view for reference before bending.

[0013] In manufacturing, as shown in FIG. 1, the flat foam is divided into a left cushioning body 2 and a right cushioning body 3 by the half-cut surface 1.

[0014] The remaining part of the half-cut surface 1 formed on the back surface side of the flat foam becomes the hinge 4.

[0015] An isosceles trapezoidal protrusion 5 that protrudes from the half-cut surface 1 toward the right buffer 3 is formed.

[0016] Since the corner part between the long side and the oblique side of the isosceles trapezoid is chamfered, it can be smoothly bent without getting caught.

[0017] The long side, the oblique side, and the chamfered part of the isosceles trapezoid forming the protrusion 5 are all cut surfaces 6.

[0018] The height between the long side and the short side of the isosceles trapezoid forming the protrusion 5 is equal to the thickness of the flat foam.

[0019] Figure 2 is a reference perspective view after bending.

[0020] When used as a packaging buffer, as shown in Figure 2, the right buffer 3 is bent 90 degrees around the hinge 4, and the back surface of the protrusion 5 and a part of the half-cut surface 1 of the right buffer 3 are in contact, so that the 90-degree bent shape of the flat foam is firmly maintained.

[0021] Figure 3 is a reference perspective view of the use state.

[0022] Figure 3 shows an example of protecting the upper and lower corners of a packaged object such as an electrical product using the packaging buffer according to this article.

[0023] The packaging buffer according to this article has planes perpendicular to both the front and back surfaces, so it can be closely attached to the corners of the product to be packaged and the inside of the packaging box. Also, when not in use, it can be returned to a flat plate and does not take up much space.

Explanation of symbols

[0024] 1: Half-cut surface 2: Left buffer 4: Right buffer 5: Hinge 6: Protrusion 7: Full cut surface

Claims

1. A packaging buffer made of a flat foam such as polyethylene that has been bent, comprising: A left buffer and a right buffer separated by a half-cut surface of the flat foam; A hinge on the half-cut surface formed by leaving a remainder on the back side of the flat foam; An isosceles trapezoidal protrusion formed to protrude from the half-cut surface toward the right buffer, and The long side and the hypotenuse of the isosceles trapezoid forming the protrusion are full-cut surfaces. When used as a packaging buffer, the right buffer is bent 90 degrees around the hinge, and the back surface of the protrusion and a part of the half-cut surface of the right buffer abut, thereby maintaining the 90-degree bent shape of the flat foam. A packaging buffer characterized by this.

2. The packaging buffer according to claim 1, characterized in that the corner portion between the long side and the hypotenuse of the isosceles trapezoid forming the protrusion is chamfered.

3. The packaging buffer according to claim 1 or claim 2, characterized in that the height between the long side and the short side of the isosceles trapezoid forming the protrusion is equal to the thickness of the flat foam. ​

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