JP3247038U - Corner angle reinforcement frame - Google Patents

Abstract

[Problem] To provide a corner angle reinforcing frame with enhanced load resistance in the length direction, capable of withstanding a load without buckling even when packed goods are piled on top. [Solution] A corner angle reinforcing frame 1 is placed at the four corners of a packed product to protect them. The corner angle reinforcing frame 1 comprises a long paper angle member 2 and a short paper angle member 3, and the length of the long paper angle member 2 is set based on the length of one vertical side of the packed product to be protected in the up-down direction. The mounting edge 3a of the short paper angle member 3 is placed on the end faces 21a, 22a of both the upper A wing 21 and B wing 22 of the long paper angle member 2. The inner surface of the mounting edge 3a covers both the end faces 21a, 22a, and the inner surface of the fixing edge 3b of the short paper angle member 3 is fixed to the outer surface of either the A wing or the B wing of the long paper angle member 2. [Selected Figure] Fig. 2

Description

This invention relates to a paper corner angle reinforcement frame for protecting the corners of packaged products.

In order to protect corners of rectangular (including cubic) packaged products from damage caused by shocks that occur during stacking, transportation, and shipping, corner angle reinforcing frames made of paper angle bars (L-shaped laminated paper) have been used. Paper angle bars are made by folding multiple strips of paper in half around a longitudinal fold line, folding them into an L-shaped cross section at a 90-degree angle, and laminating them. Hereinafter, one side of the L-shaped paper angle bar will be called the "A wing," and the other side at a 90-degree angle to the A wing (in actual paper angle bars, the angle is often slightly more acute than the exact 90-degree angle) will be called the "B wing."

Figure 1 shows an example of how to use a corner angle reinforcing frame p. The corner angle reinforcing frame p is formed by punching out a 90-degree radial pattern (arrow k) starting from a folding line c on one side of the paper angle material, butting together the end faces of the upper side p1 and lower side p2 that have been punched out radially, and joining them together with staples, adhesive tape, etc.

The corner angle reinforcement frames p are placed at the four corners of the packaged product M1. When packaged product M2 is stacked on top of packaged product M1, each corner angle reinforcement frame p protects the corners. The longitudinal length of the corner angle reinforcement frames p is set to reach the lower pallet s, and supports part of the weight of the stacked packaged products M2.

In addition to this type of corner angle reinforcement frame, there is also a corner angle reinforcement frame in which two paper angle bars are arranged perpendicular to each other, the unnecessary parts are cut away, the ends of the paper angle bars are butted together, and the two paper angle bars are joined using a tacker needle or adhesive tape, and there is also a corner angle reinforcement frame in which a flat sheet of another laminated paper is attached to the paper angle bar with glue, and the connection between the paper angle bar and the flat laminated paper is then joined with adhesive tape.

Furthermore, Patent Document 1 discloses an excellent corner angle reinforcement material that can be easily assembled from paper angle bars without requiring the use of stitching metal fittings or adhesive tape when assembling a paper corner angle reinforcement frame, prevents damage to the corners of packaged products, is reusable, and has a beautiful appearance.

The corner angle reinforcement is disclosed as follows: a U-shaped groove is cut into the paper on one side of the paper angle material, centered on the longitudinal fold line, at a right angle to the longitudinal direction; a radial cutout is formed in the paper on the other side, starting from the end of the U-shaped cutout, at an angle of 90 degrees; a convex piece and a concave piece are provided on the two opposing end faces of the cutout; the material is folded inward at an angle of 90 degrees centered on the U-shaped cutout, and the opposing convex piece and concave piece are fitted together.

Japanese Utility Model Publication No. 6-44853

The corner angle reinforcement supports part of the load of the stacked packaged goods by the paper angle members in the longitudinal direction. However, in conventional corner angle reinforcement, one side of the L-shape is punched out radially at an angle of 90 degrees and the end faces are butted together (see Figure 1A), so the strength in the longitudinal direction is weaker than the other side of the L-shape. In Figure 1B, if a large load is applied in the vertical direction to the upper side p1 of the corner angle reinforcement p, there is a risk of buckling at the point where the end faces of the upper side p1 and the lower side p2 are joined, as shown in Figure 1C.

This invention was made to solve the above problems, and aims to provide a corner angle reinforcement material with enhanced load resistance in the longitudinal direction.

In order to achieve the above object, the present invention provides a corner angle reinforcing frame that is placed at the four corners of a packaged product packed in a rectangular parallelepiped shape to protect the corners of the packaged product,
The aircraft is provided with a long paper angle material and a short paper angle material shorter than the long paper angle material, the A wing and the B wing serving as a mounting side and a fixed side,
The length of the long paper angle bar is set based on the length of one vertical side of the packaged product to be protected,
The mounting edge is placed on top of the end faces of both the upper A and B wings of the long paper angle iron, and the inner surface of the mounting edge covers both the end faces of the A and B wings of the long paper angle iron, and the inner surface of the fixing edge is fixed to the outer surface of either the A wing or the B wing of the long paper angle iron.

The corner angle reinforcement of this invention does not have any cuts along the length of wings A or B as in conventional examples, so wings A and B both have the same strength, can bear the load, and are prevented from buckling.

FIG. 1 is a diagram showing a conventional corner angle reinforcement. FIG. 2 is a diagram showing a corner angle reinforcement according to an embodiment. FIG. 2 is a diagram showing the use of the corner angle reinforcement material of the embodiment.

The present invention will be specifically described below with reference to examples.
2 is a diagram illustrating the corner angle reinforcing frame. The corner angle reinforcing member 1 of this embodiment is made of a long paper angle member 2 and a shorter paper angle member 3. As is well known, paper angle members are made by folding multiple strips of paper in half around a longitudinal folding line and folding them into an L-shaped cross section with an angle of 90 degrees, forming a laminated structure. There are two types of paper angle members: an equilateral type in which wings A and B are the same length, and an unequal-sided type in which wings A are longer than wings B.

The long paper angle bar 2 has a length h set based on the length of one vertical side of the packaged product to be protected. The short paper angle bar 3 has a mounting side 3a and a fixed side 3b. The mounting side 3a may be either the A wing or the B wing of the paper angle bar. The length w of the short paper angle bar is the same as or longer than the A wing of the long paper angle bar. Both the long paper angle bar 2 and the short paper angle bar 3 may be of either the equilateral type or the unequal type, but in this embodiment, the long paper angle bar 2 is of the equilateral type and the short paper angle bar 3 is of the unequal type.

The mounting edge 3a (in this example, the longer A wing) of the short paper angle iron 3 is placed on both end faces 21a, 22a of the A wing 21 and B wing 22 of the long paper angle iron 2, the end faces 21a, 22a of which are on the upper side of the long paper angle iron 2, so that the inner surface of the mounting edge 3a covers both end faces 21a, 22a of the A wing 21 and B wing 22 of the long paper angle iron 2. The inner surface of the fixing edge 3b is fixed to the outer surface of either the A wing 21 or B wing 22 of the long paper angle iron 2 using a tacker, adhesive, or glue. In this embodiment, it was fixed to the B wing 22 using a tacker t.

The end faces 21a, 22a of the A-wing 21 and B-wing 22 of the long paper angle bar 2 may or may not be glued to the inner surface of the mounting edge 3a. This is because when the packaged product M2 is placed on the mounting edge 3a, the end faces 21a, 22a of the A-wing 21 and B-wing 22 come into contact with the inner surface of the mounting edge 3a and do not move.

Figure 3 shows the corner angle reinforcement 1 in use. The corner angle reinforcement 1 is placed at the four corners of the packaged product M1. The longitudinal length h of the corner angle reinforcement 1 is long enough to reach the lower pallet s. When packaged product M2 is stacked on top of packaged product M1, the corner angle reinforcement 1 bears part of the weight of the stacked packaged product.

The load of the packaged product M2 borne by the corner angle reinforcement 1 is transmitted to both the A wing 21 and the B wing 22 of the long paper angle material 2. Since the corner angle reinforcement 1 does not have any cuts along the length of the A wing 21 or the B wing 22 as in the conventional example, both the A wing 21 and the B wing 22 have the same strength to bear the load and are prevented from buckling.

In the above embodiment, the short paper angle iron 3 is fixed to one side of the upper side of the long paper angle iron 2, but the short paper angle iron 3 may be attached to both the top and bottom of the long paper angle iron 2 in the same way.

1 Corner angle reinforcement 2, 3 Paper angle 3a Mounting edge 3b Fixed edge 21 A wing 22 B wing 21a, 22a End surface

Claims (2)

In a corner angle reinforcing frame that is placed at the corners of a packaged product packed in a rectangular parallelepiped shape to protect the corners of the packaged product,
The aircraft is provided with a long paper angle material and a short paper angle material shorter than the long paper angle material, with the A wing and the B wing serving as a mounting side and a fixed side, respectively;
The length of the long paper angle bar is set based on the length of one vertical side of the packaged product to be protected,
A corner angle reinforcement frame in which the mounting edge is placed on top of the end faces of both the upper A and B wings of the long paper angle iron, and the inner surface of the mounting edge covers both the end faces of the A and B wings of the long paper angle iron, and the inner surface of the fixing edge is fixed to the outer surface of either the A wing or the B wing of the long paper angle iron.
2. The corner angle reinforcement frame of claim 1, wherein the mounting edge is placed on the end faces of both the lower A-wing and B-wing of the long paper angle iron, and the inner surface of the mounting edge covers both the end faces of the A-wing and B-wing of the long paper angle iron, and the inner surface of the fixing edge is fixed to the outer surface of either the A-wing or the B-wing of the long paper angle iron.