JPH0627629U - Cushioning cardboard corner pad - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a cushioning corrugated cardboard corner pad which is formed by folding and assembling the corrugated cardboard without using an adhesive. [Structure] A substantially square-shaped folded portion is projected through a two-fold fold line, a substantially square-shaped window portion is opened in the central portion of the square-shaped folded portion, and the square-shaped folded portion is further formed. Forming a pair of diagonal oblique fold lines toward the opposite tops of the above, and forming each L-shaped pillow plate on the outer sides of both sides of the square-shaped folded portion via the two fold lines. Yes, first, each L-shaped pillow plate is internally folded so as to overlap the square-shaped folded portion to form an L-shaped superimposed body, and
A separately formed tongue piece is inserted between the layers of the character-shaped superimposed body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a shock-absorbing corrugated ball corner pad that is folded and assembled without using an adhesive.

[0002]

[Prior art]

 Conventionally, foamed polystyrene pads have been mainly used as corner pads for lighting equipment, electric equipment, or acoustic equipment such as speakers. In addition, as a cushioning corrugated ball corner pad, there is also a corner pad in which a number of corrugated cardboards are adhered to form a laminated body.

[0003]

[Problems to be solved by the device]

 Conventional foamed styrene corner pads were integrally molded into a shape that corresponds to the shape of the corners of the products to be stored. In addition, in order to further improve the cushioning effect, some products are formed in a concave shape that allows the entire shape of the product to be stored as it is. When the product is taken out, various kinds of pollution may occur when such foamed polystyrene corner pads or cushioning materials are discarded.Therefore, foamed polystyrene pads as corner pads tend to be avoided. It is in. Therefore, the larger the size of such cushioning material becomes, the more serious the pollution problem such as air pollution becomes when it is burned or discarded. For these reasons, foam pads made of styrofoam as a packaging material have recently been regulated on a global scale. In addition, there is a disadvantage in that a corrugated board in which a number of layers are adhered to form a laminated body is expensive. The present invention is an alternative to styrofoam as a corner pad for lighting equipment, electric equipment, or acoustic equipment such as speakers, etc. As a corrugated cardboard, a corrugated cardboard is folded into multiple layers and a tongue is inserted between the multiple layers. By doing so, it is possible to provide a cushioning corrugated cardboard corner pad that is less costly and more excellent in cushioning effect and does not require gluing.

[0004]

[Means for solving problems]

 In order to achieve the above-mentioned purpose, a square-shaped folded part is projected from each of the four corners of the cardboard mount through two fold lines, and the square-shaped folded part is almost centered. A square window is opened, and two diagonal diagonal fold lines are formed toward the pair of opposite apexes of the square-shaped folded portion and outside the both sides of the square-shaped folded portion. Each L-shaped pillow plate is formed through two fold lines. First, each L-shaped pillow plate is internally folded so as to overlap the square-shaped folded portion, and then the square-shaped folded portion. When the L-shaped overlapping body consisting of four layers is folded on the upper surface of the mount by inward folding from the diagonal fold line, and the square-shaped folded portion is folded inward from the diagonal fold line, it corresponds to the window portion. The L-shaped superposed body is provided with a tongue piece provided at a position with one side continuous with the mount. By inserting the upper interlayer is obtained by a shock-absorbing properties cardboard corner pads integral with the mount. In addition, the square-shaped folded-back portions are made to project from the four corners of the cardboard mount through the two fold lines and the auxiliary walls are internally folded along the side edges of the mount. A substantially square window is opened in the center of the portion, and two diagonal fold lines are formed toward the pair of opposite tops of the square-shaped folded portion, and the square-shaped folded portion is formed. L-shaped pillows are formed on the outside of both sides of the L-shaped pillows through two fold lines. First, fold each L-shaped pillow to inward so that it overlaps the square-shaped folded portion, then When the square-shaped folded portion is folded inward from the diagonal fold line to fold the L-shaped overlapping body consisting of four layers further on the upper surface of the mount, and the square folded portion is folded inward from the diagonal fold line. Installed at a position corresponding to the window with one side continuous with the mount. A cushioning corrugated cardboard corner pad in the case where one side of the L-shaped superposed body is sandwiched between the auxiliary wall and the tongue by inserting the tongue piece between the upper layers of the L-shaped superposed body. Can securely hold the home position. Also, as a single corner pad of corrugated cardboard, a substantially square window is opened in the center of the square-shaped folded portion made of corrugated cardboard, and the two-sided two-sided heads of the square-shaped folded portion facing opposite one another are formed. A diagonal fold line for inward folding is formed, and a bent piece that bends outside two adjacent sides of this square-shaped folded portion is formed, and a tongue piece that is inserted at the tip is formed on the other two adjacent sides. The bent piece is first 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. 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]

[Action]

 At the cutting and assembling stage, a square folded portion having a window formed by integrally projecting with the mount from the outside of the corner of the mount, and a two-sided outside of each side of the square folded portion. 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 crease lines. It can be fixed on the corner of the mount without using a chemical. The quadrilateral corrugated cardboard with a window formed in the center is folded back to form an L-shaped laminated body, and the tongue tip of the wrapping part protruding from the two sides of the quadrilateral corrugated corrugated board is used as the L-shaped laminated body. The L-shaped laminated body is fixed by being inserted between the layers of the L-shaped laminated body.

[0006]

【Example】

 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 forming the four corners via two fold lines 2a and 2b which are spaced apart 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 tops of the square-shaped folded portion 3, and two fold lines 6a, 6b are formed on the outer sides of both sides of the square-shaped folded portion 3. The L-shaped pillow plates 7 and 7 are formed through. There are two fold lines so that when the corrugated cardboard is bent, there is room to fold the corrugated cardboard structure without crushing it. Each L-shaped pillow plate 7, 7 is folded inward so as to overlap the square-shaped folded portion 3, and then the square-shaped folded portion is folded inward from the diagonal fold lines 5a, 5b. The L-shaped superposed body A is folded on the upper surface of the mount 1, and the auxiliary walls 8 are internally folded on both sides of the mount. The folding line of the auxiliary wall 8 is located 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. A tongue piece 10 is punched out by connecting one end 9 parallel to the base paper with the mount. Therefore, by inserting the tip portion of the tongue piece 10 between the layers of the L-shaped superposed body A consisting of four layers in the portion parallel to the auxiliary wall 8, the L-shaped superposed body parallel to the auxiliary wall 8 is inserted. The L-shaped superposed body A is more surely immovable by holding the portion of the superposed body A by the auxiliary wall 8 and the tongue piece 10. All of 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 and 7 are formed, the tongue piece 10 is formed, and the auxiliary wall 8 and the like are Thomson-extracted. 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.

In FIG. 5 to FIG. 8, a substantially square window 22 is opened in the center of a square folded portion 21 made of corrugated cardboard, and further toward the opposite tops of the square folded portion. -Shaped fold lines 23a, 23b for inward folding are formed, and two bent sides 24, 24 of the square-shaped folded portion that are adjacent to each other are formed on the other two adjacent sides. After forming the winding portions 26, 26 formed by forming the insertion tongue pieces 25, 25 at the tip portion, first, the bent pieces 24, 24 are outwardly bent to the back surface side of the square-shaped folded portion 21, The L-shaped three-layer body B is formed by inwardly folding the square-shaped folded portion 21 along the two obliquely folding inner fold lines 23a and 23b. It is wound from the outside at the winding portions 26, 26 that are folded inwardly with respect to the L-shaped three-layer body B. By inserting the insertion tongue pieces 25, 25 between the lower layers of the L-shaped three-layer body B, as shown in FIG. It can be fixed as a single corner pad without using adhesive. Therefore, when this is used as a corner pad, it is attached to the upper surface of the mount 27 and used.

[0008]

[Effect of device]

 In the shock-absorbing corrugated cardboard corner pad according to claim 1, almost square-shaped folded-back portions are projected from the four corners of the cardboard mount through two fold lines, and the central portion of the square-shaped folded-back portion is projected. A substantially square window is opened in the side wall, and two diagonal diagonal fold lines are formed toward the pair of opposite apexes of the square-shaped folded portion, and both sides of the square-shaped folded portion are outside. Each L-shaped pillow plate is formed through two fold lines on the fold line. First, fold each L-shaped pillow plate inward so that it overlaps the square-shaped fold portion, and then fold the square shape. By folding the part inward from the diagonal fold line, the L-shaped superposed body consisting of four layers is further folded on the upper surface of the mount, and when the square-shaped folded part is folded inward from the diagonal fold line, it becomes the window part. A tongue that is placed in a corresponding position with one side continuous with the mount Since the are and be inserted into the upper layers of the L-shaped piled body, the corners of the base sheet, the adhesive entirely immobilized child and can corner pad without using. In addition to the cushioning properties of each corrugated board, the four-layer L-shaped superposed body made of corrugated board with an appropriate thickness has a slight gap between the layers by not using an adhesive, which serves as a cushion. Since it has a cushioning effect and can prevent damage to the product, it is useful as a corner pad that replaces 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. In addition, it can be easily assembled by folding along the pre-formed crease line, and its positioning is performed naturally, so no skill is required for the work. In the case of the cushioning corrugated cardboard corner pad according to claim 2, a substantially square folded portion is projected from each of four corners of the corrugated cardboard mount through two fold lines and the mountboard side is provided. The auxiliary wall is folded inward at the side, a substantially square window is opened in the central part of the square-shaped folded portion, and the two-dimensional shape is formed toward the pair of opposite tops of the square-shaped folded portion. The diagonal fold lines are formed, and the L-shaped pillow plates are formed on the outer sides of both sides of the square-shaped folded portion through the double fold lines. First, the L-shaped pillow plates are formed. Fold inward so that it overlaps the square-shaped folded portion, and then fold the square-shaped folded portion inward from the diagonal crease line to fold the L-shaped superimposed body consisting of four layers to the upper surface of the mount. When the square-shaped folded part is folded inward from the diagonal fold line, the window part By inserting a tongue piece provided at a corresponding position in a state where one side is continuous with the mount, between the upper layers of the L-shaped superposed body, one side of the L-shaped superposed body is provided with the auxiliary wall and the tongue piece. Since it is sandwiched by and, the shape and movement of the cushioning corrugated cardboard corner pad can be prevented, 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 cardboard, and the pair of opposed top portions of the square-shaped folded portion are further provided. Forming two diagonal fold lines for inward folding toward each other, forming a bent piece that folds outside two adjacent sides of this square-shaped folded part, and inserts a tongue at the tip on the other two adjacent sides. Forming a winding portion formed by forming a piece, first folding the bent piece on the back side of the square-shaped folded portion, and then folding the square-shaped folded portion inwardly to form an L-shape. After forming the three-layer body, 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, so that the assembling work is performed compactly, and the single corner pad is used. The place of use is not limited. If necessary, multiple cushioning corrugated cardboard corner pads can be used by overlapping them, and the thickness of the pad can be freely selected, and it can be used inexpensively 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. When the L-shaped overlapping body composed of four layers is further folded on the upper surface of the mount by inward-folding, and when the square-shaped folded portion is folded inward from the oblique fold line, one side is placed at a position corresponding to the window Insert the tongue piece provided in a continuous state between the upper layers of the L-shaped superposed body Buffering cardboard corner pads, characterized in that. 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. Folding, and then folding the square-shaped folded portion inwardly from the diagonal fold line, the L-shaped superimposed body consisting of four layers is further folded on the upper surface of the mount, and the square-shaped folded portion is diagonally folded. When folded further, one side of the L-shaped superposed body is inserted by inserting a tongue piece provided at a position corresponding to the window portion with one side continuous with the mount, between the upper layers of the L-shaped superposed body. The shock-absorbing step is characterized in that the above-mentioned auxiliary wall and the tongue piece are clamped. Lumpur corner pad. 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.