JPH078454Y2 - Cushioning cardboard corner pad - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a cushioning corrugated cardboard corner pad which is folded and assembled without using an adhesive.

[0002]

2. Description of the Related Art Conventionally, foamed polystyrene pads have been mainly used as corner pads for lighting equipment, electric equipment, or acoustic equipment such as speakers. As the cushioning corrugated cardboard corner pad, there is also a corner pad in which a number of corrugated cardboards are bonded to form a laminated body.

[0003]

A conventional foam polystyrene corner pad is integrally formed into a shape corresponding to the shape of the corner of the product to be stored. In addition, in order to further improve the cushioning effect, there is a product in which the entire shape of the product is formed into a concave shape that can be stored as it is. When the product is taken out, various kinds of pollution are generated when such foamed polystyrene corner pads or cushioning materials are discarded.Therefore, foamed polystyrene pads as corner pads tend to be avoided. is there. Therefore,
The larger the size of the buffer material, the more serious the pollution problem such as air pollution at the time of burning and disposal. For this reason, foamed polystyrene pads as packaging materials have recently been regulated on a global scale. In addition, there is a drawback that the number of layers of corrugated cardboard bonded to form a laminate is expensive. The present invention is an alternative to foamed polystyrene as a corner pad for lighting equipment, electric equipment, or acoustic equipment such as speakers, in which a corrugated cardboard is made into multiple layers by folding means, and a tongue is inserted between the multiple layers. A shape-retaining cushioning corrugated cardboard corner pad that is inexpensive and excellent in cushioning effect and does not require gluing is provided.

[0004]

[Means for Solving the Problems] In order to achieve the above object, a substantially square folded portion is projected from each of the four corners of a cardboard mount through two fold lines, and the square shape is formed. A substantially square window portion is opened in the center of the folded portion, and two diagonal fold lines are formed toward the pair of opposite tops of the square folded portion, and the square folded portion is formed. Each L-shaped pillow plate is formed on the outer side of both sides of the return part through two fold lines.
Fold the letter-shaped pillow plate inward so that it overlaps the square-shaped folded portion, and then fold the square-shaped folded portion inward from the diagonal crease line .
By doing so, an L-shaped superposed body consisting of four layers is formed, and further
Folding the L-shaped superposed body on the upper surface of the mount,
When the folded part is folded inward from the fold line in the corner of the mount, the window
A cushioning corrugated cardboard corner pad integrated with the mount is formed by inserting a tongue provided at a position corresponding to the part in a state where one side is continuous with the mount, between the upper layers of the L-shaped superposed bodies. . Further, a substantially square-shaped folded-back portion is projected from each of the four corners of the cardboard mount through two fold lines, and an auxiliary wall is internally folded on the side of the mount so that the square-shaped folded-back part is formed. A substantially square window portion is opened in the central portion of the portion, and further, two diagonal diagonal fold lines toward the pair of opposite top portions of the square-shaped folded portion are formed and the square-shaped folded portion of the square-shaped folded portion is formed. Each L-shaped pillow plate is formed on the outside of both sides via two fold lines. First, each L-shaped pillow plate is folded inward so that it overlaps with the square-shaped folded portion, and then the square shape. The L-shaped overlapping body consisting of four layers is formed by inwardly folding the fold-back portion from the diagonal fold line.
And further fold the L-shaped superimposed body on the upper surface of the mount,
Fold the square-shaped folded part inward from the fold line in the corner of the mount.
In this case, one side of the L-shaped superposed body is attached to the auxiliary wall by inserting a tongue piece provided at a position corresponding to the window portion with one side being continuous with the mount, between the upper layers of the L-shaped superposed body. When sandwiched between the tongue and the tongue, the cushioning corrugated cardboard corner pad can be securely held in place.
In addition, as a single corner pad of corrugated cardboard, a substantially square window portion is opened in the central portion of the square-shaped folded portion made of corrugated cardboard, and the two-sided heads of the square-shaped folded portion toward the pair of opposite tops. Form a diagonal fold line for inward folding, and form a bent piece that folds out two adjacent sides of this square-shaped folded part and forms a tongue piece that is inserted at the tip on the other two adjacent sides. The bent portion is first folded on the back side of the square-shaped folded portion, and the square-shaped folded portion is internally folded to form an L-shaped three-layer body. After being formed, the winding portion is wound from the outside and the tongue portion is inserted between the lower layers of the three-layer body.

[0005]

In the cutting and assembling steps, a square folded portion having a window formed by integrally projecting with the mount from the outside of the corner of the mount and outside both sides of the square folded portion are formed. Adhesion is made by inserting a tongue, one end of which is connected to the mount, between the layers of the superposed body on the upper surface of the mount, which is formed by sequentially folding back the L-shaped pillow plate provided through the two fold lines. It can be fixed on the corner of the mount without using a chemical. In addition, an L-shaped laminated body is formed by folding back a quadrilateral corrugated cardboard having a window portion in the center as a single body, and the tip tongue of the winding portion protruding from the two sides of the quadrilateral corrugated cardboard is the L-shaped laminated body. The L-shaped laminated body is fixed by being inserted between the layers of the laminated body.

[0006]

EXAMPLES Examples will be described with reference to the drawings. In FIGS. 1 to 4, a substantially square folding portion 3 is projected from two ends of the mount 1 made of corrugated cardboard, which constitute four corners, through two fold lines 2a and 2b which are separated from each other. A substantially square window portion 4 is opened in the central portion of the square folded portion 3. Two diagonal fold lines 5a, 5b are formed toward the opposite apexes of the square-shaped folded portion 3, and two fold lines 6a, 6b are formed on both outer sides of the square-shaped folded portion 3. The L-shaped pillow plates 7 and 7 are formed through them. It should be noted that the two fold lines are provided to allow the corrugated board structure to be bent without being crushed when the corrugated board is bent. Each L-shaped pillow 7,7
Is folded inward so that it overlaps the square-shaped folded portion 3, and then the square-shaped folded portion is folded inward from the diagonal fold lines 5a and 5b to mount the L-shaped superimposed body A having four layers. 1 is folded on the upper surface, and auxiliary walls 8 are folded inward on both sides of the mount. The auxiliary wall 8 is provided at the position of the mount 1 corresponding to the window 4 formed in the square-shaped folded portion 3 in a state where the square-shaped folded portion 3 is internally folded toward the mount 1.
The tongue piece 1 with one end 9 parallel to the bending line of the
0 is punched out. Therefore, by inserting the tip of the tongue piece 10 between the layers of the L-shaped superposed body A having four layers in parallel with the auxiliary wall 8, the auxiliary wall 8 is inserted.
The L-shaped superposed body A portion that is parallel to is held by the auxiliary wall 8 and the tongue piece 10, so that the L-shaped superposed body A is more surely immobilized. In addition, all the above-mentioned crease lines are formed, the square-shaped folded portion 3, the window portion 4 is drilled, the L-shaped pillow plates 7, 7 are formed, the tongue piece 10 is formed, and the auxiliary wall 8 and the like are Thomson-free. It can be cut in one step by processing. Reference numeral 11 is a product such as a lighting device, an electric device, or an audio device such as a speaker, 12 is an outer box, and 13 is a protective top plate.

5 to 8, a substantially square window portion 2 is formed in the center of a square folded portion 21 made of corrugated cardboard.
2 is opened, and further, two fold lines 23a, 2 for inward folding which are obliquely directed toward the opposite apexes of the square-shaped folded portion are provided.
3b is formed, and bent pieces 24, 24 are formed on the two sides of the square-shaped folded portion that are adjacent to each other and outwardly folded, and insertion tongue pieces 25, 25 are formed on the tip of the other two sides. First, the bent piece 2 is formed.
4 and 24 are outwardly folded to the back surface side of the square-shaped folded portion 21, and then the square-shaped folded portion 21 is internally folded along two obliquely folding inward folding fold lines 23a and 23b. By doing so, the L-shaped three-layer body B is formed. L-shaped trilayer B
L-shaped three-layer body B with the insertion tongue pieces 25, 25 being wound from the outside at the winding portions 26, 26 that are folded inwardly with respect to
It can be fixed as a single corner pad without using an adhesive by inserting it between the lower layers. Therefore, when this is used as a corner pad, it is attached to the upper surface of the mount 27 and used.

[0008]

According to the shock-absorbing corrugated cardboard corner pad of claim 1, the substantially square-shaped folded-back portion is projected from each of the four corners of the cardboard mount through the two fold lines, and the square-shaped folded-back portion is formed. A substantially square window portion is opened in the central portion of the portion, and further, two diagonal diagonal fold lines toward the pair of opposite top portions of the square-shaped folded portion are formed and the square-shaped folded portion of the square-shaped folded portion is formed. Each L-shaped pillow plate is formed on the outside of both sides via two fold lines.
Fold the letter-shaped pillow plate inward so that it overlaps the square-shaped folded portion, and then fold the square-shaped folded portion inward from the diagonal crease line .
By doing so, an L-shaped superposed body consisting of four layers is formed, and further
Folding the L-shaped superposed body on the upper surface of the mount,
When the folded part is folded inward from the fold line in the corner of the mount, the window
Since a tongue piece provided at a position corresponding to the part in a state where one side is continuous with the mount is to be inserted between the upper layers of the L-shaped superposed body, no adhesive is used at the corners of the mount. The corner pad can be fixed.
In addition to the cushioning properties of each corrugated board, the four-layer L-shaped superposed body made of corrugated board having an appropriate thickness has a slight gap between the layers by not using an adhesive, which serves as a cushion and provides a large cushion. Since it has an effect and can avoid damage to the product, it is useful as a corner pad replacing the conventional corner pad made of foamed resin such as styrofoam. Further, this cushioning corrugated cardboard corner pad can be provided at a low cost because the crease and punching can be performed in only one step by the Thomson punching process. Further, it is possible to easily assemble along a pre-formed crease line by folding work, and the positioning is naturally performed, so that no skill is required for the work. When the cushioning corrugated cardboard corner pad according to claim 2 is used, a substantially square folded portion is projected from each of the four corners of the cardboard mount through two fold lines and an auxiliary wall is provided on the side of the mount. Inwardly, opening a substantially square window portion in the central portion of the square-shaped folded portion, and further forming two diagonal folds toward the pair of opposite tops of the square-shaped folded portion. Lines are formed, and each L-shaped pillow plate is formed on the outside of both sides of the square-shaped folded portion via two fold lines. First, each L-shaped pillow plate is folded into a square shape. Fold it inward so that it overlaps the return section, and then fold the square-shaped return section inward from the diagonal crease line .
Forming an L-shaped superposed body consisting of four layers, and further
Fold the tatami mat onto the upper surface of the mount and fold the square-shaped folded part
When folded inward from the fold line in the corner of the mount, it corresponds to the window
A tongue piece provided at one position with one side continuous with the mount is inserted between the upper layers of the L-shaped superposed body so that one side of the L-shaped superposed body is sandwiched by the auxiliary wall and the tongue piece. Therefore, it is possible to prevent the cushioning corrugated cardboard corner pad from losing its shape or moving, so that the product can be held more reliably. In the shock-absorbing corrugated cardboard corner pad according to claim 3, a substantially square window portion is opened in the central portion of the square-shaped folded portion made of corrugated board, and further toward the pair of opposite top portions of the square-shaped folded portion. Form two diagonal fold lines for inward folding, and form a bent piece that folds the two adjacent sides of this square-shaped folded part and folds the tongue piece at the tip of the other two adjacent sides. Form the entrained part that is formed,
First, the bent piece is folded on the back surface side of the square-shaped folded portion, and then the square-shaped folded portion is internally folded to form an L-shaped three-layer body, and then the winding portion is formed. Since the tongue portion is inserted from the outside and the tongue portion is inserted between the lower layers of the L-shaped three-layer body, the assembling work is performed compactly, and the use place is not limited as a single corner pad. If necessary, a plurality of cushioning corrugated cardboard corner pads may be overlapped and used, and the thickness of the pad can be freely selected, and the pad can be inexpensively used as a replacement for the conventional styrofoam pad.

[Brief description of drawings]

FIG. 1 is a partially developed view of a corner pad of the present invention.

FIG. 2 is a perspective view showing an assembled state.

FIG. 3 is a partial sectional view.

FIG. 4 is a plan view.

FIG. 5 is a development view of a corner pad showing another embodiment.

FIG. 6 is a perspective view showing an assembled state.

FIG. 7 is a perspective view of a single corner pad.

FIG. 8 is a sectional view showing a state in which the insertion tongue piece is inserted.

[Explanation of symbols]

 1. ． Mount 2a, 2b. ． Fold lines 3. ． Square-shaped folded portion 4. ． Windows 5a, 5b. ． Oblique fold lines 6a, 6b. ． Fold lines 7. ． L-shaped pillow plate 8. ． Auxiliary wall 9. ． One end 10. Tongue 11. Square-shaped folded portion 21. Square window 22. ． Diagonal fold line for inward folding 23. ． Bent piece 24. ． Insertion tongue 25. ． Entrainment part 26. ． Mount

Claims (3)

[Scope of utility model registration request] 1. A substantially square folded portion is projected from each of four corners of a cardboard mount through two fold lines, and a substantially square window portion is formed at the center of the square folded portion. And further forming two diagonal fold lines toward the pair of facing tops of the square-shaped folded portion, and forming a two-fold fold line on the outside of both sides of the square-shaped folded portion. Each L-shaped pillow plate is formed through, and each L-shaped pillow plate is first folded inward so as to overlap the square-shaped folded portion, and then the square-shaped folded portion is drawn from the diagonal fold line. Inward folding
By doing so, an L-shaped superposed body consisting of four layers is formed, and further
Folding the L-shaped superposed body on the upper surface of the mount,
When the folded part is folded inward from the fold line in the corner of the mount, the window
A cushioning corrugated cardboard corner pad, characterized in that a tongue piece provided at a position corresponding to the part with one side being continuous with the mount is inserted between the upper layers of the L-shaped superposed body. 2. A substantially square-shaped folded-back portion is projected from each of the four corners of a cardboard mount through two fold lines, and an auxiliary wall is internally folded at the side of the mount,
A substantially square window portion is opened in the central portion of the square-shaped folded portion, and further, two diagonal fold lines toward the pair of opposite tops of the square-shaped folded portion are formed and the square is formed. The L-shaped pillows are formed on the outer sides of both sides of the L-shaped folded-back portion through the two-folded fold lines. First, each L-shaped pillow is placed so as to overlap the square-shaped folded-back portion. Fold and then fold the square fold inward from the diagonal crease line .
And an L-shaped superposed body consisting of four layers, and further
Fold the sheet-shaped stack on the top of the mount and fold back the square
When the part is folded inward from the fold line in the corner of the mount,
By inserting a tongue piece provided in a corresponding position in a state where one side is continuous with the mount, between the upper layers of the L-shaped superposed bodies, one side of the L-shaped superposed body is formed by the auxiliary wall and the tongue piece. A cushioning corrugated cardboard corner pad characterized by being sandwiched. 3. A substantially square window portion is opened in the central portion of a square-shaped folded portion made of corrugated cardboard, and further diagonally inclined in two directions toward a pair of opposing top portions of the square-shaped folded portion. A fold-in part formed by forming a fold line for inward folding, forming a bent piece that folds out two adjacent sides of this square-shaped folded part and forming an insertion tongue piece at the tip part on the other two adjacent sides. First, the bent piece is folded on the back side of the square-shaped folded portion, and then the square-shaped folded portion is internally folded to form an L-shaped three-layer body. A cushioning corrugated cardboard corner pad, wherein the winding portion is wound from the outside and the tongue portion is inserted between the lower layers of the L-shaped three-layer body.