JPH0731664U - Assembled cushioning material for packing - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a cushioning material for packaging, which has a high compressive strength and mass production effect by being assembled from corrugated paper. [Structure] A piece of corrugated cardboard paper (M) having a rectangular contour shape is provided with a plurality of folded ridgelines (1
0) (11) (12) (13) (14) is engraved, and from one bent ridgeline (10) located at one end side thereof,
One end of the corrugated cardboard paper (M) is bent into a chevron shape to form a bracing piece (17), and the bracing piece (1
From 7) to the other end side of the corrugated paperboard (M), the corrugated paperboard (M) is sequentially bent inward at right angles from all the remaining folding ridgelines (11) to (14), whereby the bracing The piece (17) was assembled into a rectangular tubular body (A) with a generally rectangular cross section.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a prefabricated cushioning material for packaging.

[0002]

[Prior art]

 Foamed plastic products such as polystyrene foam have been widely used as cushioning materials for packaging, and it is customary to stuff them in the gap between the outer box and the product to safely protect the product from external forces. Is.

[0003]

[Problems to be solved by the device]

 However, since the above-mentioned cushioning material is a plastic molded product, it is necessary to prepare various kinds of products having different three-dimensional shapes and sizes, and as a result of the provisional light weight, the leopard becomes bulky, resulting in a large inventory. It requires a large installation space because it is difficult to store.

Further, since it is a foamed plastic product, there is a problem that it is difficult to recycle and use it when it is discarded or incinerated, which damages the natural environment. In this respect, paper tubes can be reused, but they still require a large installation space for inventory and storage.

[0005]

[Means for Solving the Problems]

 The present invention is intended to solve such a problem, and a single corrugated cardboard paper having a rectangular circular shape for its construction is marked with a plurality of folding ridges parallel to its short sides. , One end of the corrugated paperboard is bent into a mountain shape from one bent ridgeline at one end side to form a supporting piece, and the corrugated paperboard continues from the supporting piece toward the other end side of the corrugated paperboard. The first feature is to assemble the above-mentioned strut pieces into a rectangular tubular body having an overall cross section by sequentially bending inward at right angles from all remaining folding ridges,

Further, a plurality of folding ridge lines parallel to the short sides are engraved on a single piece of corrugated cardboard paper also having a rectangular contour shape, and from one folding ridge line located at one end side thereof, By bending one end of the above corrugated cardboard into a mountain shape to form a first supporting piece, and from the first supporting piece toward the other end side of the corrugated cardboard, some folding ridges that leave the corrugated ball paper. By sequentially bending inward at right angles inward from the above, the assembly is assembled into the first rectangular tubular body having an overall rectangular cross section surrounding the first bracing piece, while the other one located on the other end side of the corrugated paper is The other end of the corrugated cardboard is also bent into a chevron from the bent ridgeline to form a second bracing piece, and the second bracing piece continues toward the opposite one end side of the corrugated cardboard to form that corrugated ball. The paper is assembled into a second rectangular tubular body having a rectangular cross section surrounding the second tension piece by sequentially folding the remaining folded ridgelines inward at right angles, and the first and second rectangular tubular bodies are also assembled. The second feature is that they are kept in parallel with each other separated by a constant distance.

Further, a plurality of folding ridge lines parallel to the short sides are engraved on a single piece of corrugated cardboard paper having a rectangular contour shape, and from one folding ridge line located at one end side thereof, By bending one end of the corrugated cardboard into a large chevron, a first supporting piece is formed. From the first supporting piece toward the other end of the corrugated cardboard, the corrugated cardboard is sequentially folded from some remaining ridges. By bending it inwardly at a right angle, it is assembled into a first rectangular tubular body having a large rectangular cross-section that surrounds the above-mentioned first tension piece, while one folding ridgeline located at the other end side of the above corrugated cardboard is used. The other end of the corrugated cardboard is bent into a small chevron to form a second bracing piece, and from that second bracing piece to the opposite one end side of the corrugated cardboard, the corrugated ball By folding the paper inward at right angles inward from several remaining folding ridges, the paper is assembled into a second rectangular tubular body having a small rectangular cross section surrounding the second tension piece, and the first and second rectangular tubulars. The first prismatic cylinder is directed inwardly from the fold ridge located at the corner so that the body is separated by a constant interval having substantially the same size as the short side of the first prismatic cylinder and the constant interval is continuously closed. A third feature is that the second rectangular cylindrical body is assembled into an L-shaped cross section by bending and raising at a right angle.

[0008]

[Action]

 According to the above configuration of the present invention, any of them is made of a single piece of corrugated cardboard, so that it can be stocked and stored in a large amount in the unfolded state, compared to the conventional product described at the beginning. Remarkably excellent in space saving, recycling and mass production.

Further, the corrugated paper can be assembled and used very easily, and in the assembled state, since the mountain-shaped projecting piece is wrapped inside the rectangular tubular body having a rectangular cross section, the projecting piece is effective. Since the compressive strength and the cushioning property can be exhibited, the packed goods can be always protected safely.

[0010]

【Example】

 The present invention will be described in detail below with reference to the drawings. First, FIGS. 1 to 4 relate to a first embodiment of the assembly type cushioning material, and (M) is a piece of corrugated paperboard, Although not shown in detail, it consists of a pair of liners and their cores, and is punched into a rectangular contour shape as shown in FIG.

Then, the corrugated paper (M) is continuously bent from one end side to the other end side in the longitudinal direction, whereby a rectangular tubular body (A) having a rectangular cross section as shown in FIGS. It can be assembled as.

That is, in FIG. 2 showing the developed state of the cushioning material, a plurality of (10), (11), (12), (13), (14) and (15) are parallel to the short side of the corrugated paper (M). It is a bent ridgeline of a book, and is stamped at the same time as the contour punching of the corrugated cardboard (M) or separately.

Of the plurality of folding ridgelines (10) to (15), one located at the one end side of the corrugated paper (M) is the outward folding ridgeline (10), and the remaining five ridgelines (10) are the outermost ridgelines (10). The first to fifth inward folding ridgelines (11) to (15) are sequentially set from the inward folding ridgeline (10).

In that case, as is clear from the comparison between FIG. 2 and FIGS. 1 and 3, the mutual band of the first and second inward bending ridges (11) and (12) and the third and fourth inward bending ridges. (13) The mutual zone of (14) is dimensioned approximately the same as the opposite short sides (x) of the rectangular tubular body (A) having a rectangular cross section, and the fifth inward bending. The mutual zone between the ridgeline (15) and the other edge of the corrugated paperboard (M) serves as a polymerized piece (16) and is superposed from the outside onto the mutual zone of the first and second inwardly bent ridgelines (11) and (12). It is like this.

The mutual band of the second and third inward bending ridges (12) and (13) and the mutual band of the fourth and fifth inward bending ridges (14) and (15) are the same as those of the rectangular tubular body (A). It is also approximately equally sized as the long sides (y) that face each other.

On the other hand, the mutual band between the one edge of the corrugated paper (M) and the first inwardly bent ridgeline (11) is more predetermined than the long side (y) of the rectangular tubular body (A). The size is slightly wide, and the outward bending ridge line (10) interposed in the middle of the wide band is bent in a mountain shape.

That is, the mountain-shaped bent band is embedded in the hollow inside of the rectangular tubular body (A) as a strut piece (17), so that the compressive strength is increased.

In this regard, in the illustrated embodiment, the outwardly bent ridgeline (10) is located on the bisector of the vast band, so that the peak (z) of the chevron-shaped protrusion (17) is located. Is set so that it can be brought into line contact with the central portion of the long side (y) of the rectangular tubular body (A) having a rectangular cross section from the inside, but of course, it is not limited to such a configuration.

Reference numeral (18) is an insertion fixing piece bent and raised from the central portion of the fifth inward bending ridgeline (15) and cut at the same time as the contour punching of the corrugated cardboard (M) or separately. Missing. Reference numeral (19) is a receiving port for the fixing piece (18), which is punched out in the central portion on the first inward bending ridgeline (11).

As shown in FIGS. 1 and 3, the insertion fixing piece (18) and the receiving port (19) thereof are positioned corresponding to the corners of the rectangular tubular body (A) and are engaged with and disengageable from each other. As a result, the assembled state of the rectangular tubular body (A) is fixed and maintained. From this point of view, when the short side of the rectangular corrugated cardboard (M) has a large size, the number of the insertion fixing pieces (18) and the receiving ports (19) thereof may be increased.

Further, in place of the locking force between the insertion fixing piece (18) and the receiving port (19) thereof, a tucker suitable for corrugated cardboard or other fixing tool is used for the above rectangular tubular body (A). The assembled state of (1) may be maintained fixed, and in that case, the polymerized piece (16) may be omitted.

When assembling the corrugated cardboard paper (M) in the expanded state as described above into the rectangular tubular body (A) as the cushioning material, first, the outward bending ridge line (10) is bent into a mountain shape, A stretch piece (17) is formed on one end of the corrugated paper (M).

Next, the first inward bending ridgeline (11) is bent sharply in the opposite direction to the inside, and subsequently the other end of the corrugated paper (M) is surrounded so as to surround the above-mentioned mountain-shaped strut (17). Then, the corrugated paper (M) is sequentially bent inward at right angles from the second to fifth inward bending ridgelines (12) to (15), so that a rectangular tubular body (A) having a rectangular cross section is formed. It will be three-dimensional.

Then, finally, by inserting and locking the insertion fixing piece (18) into the receiving port (19) from the outside, the corner portion of the rectangular tubular body (A) is locked so to speak, and its assembled state. It is fixed and maintained so that it does not lose its shape.

The cushioning material of the present invention thus assembled and completed will be used by inserting it into the corner portion of the packaging outer box (B) as suggested in FIG. Even if a compressive load is applied to the long side (y) of the rectangular prismatic body (A) from the outer side of the provisional frame, the mountain-shaped tensioning piece (17) wrapped inside it acts as a reinforcing muscle, Since it exerts strength against compression load, there is no risk of the packaged item (C) deforming or breaking, and the item (C) can be safely protected.

Furthermore, as is clear from FIG. 4 (a), in view of the relative relationship with the rectangular tubular body (A) having a rectangular cross section, the strut piece (17) wrapped inside is intentionally downsized. , Between the apex (z) of the chevron and the long side (y) of the above-mentioned rectangular section, both skirts (p) of the chevron-shaped tensioning piece (17), and the corresponding rectangular tubular body. A slight gap (s) may be maintained between the corner portion (A) and the corner portion.

Then, when the compressive force from the outside is applied, the mountain-shaped bracing piece (17) elastically deforms by using the void (s) as a bending allowance so as to slip and escape as shown in FIG. Therefore, the cushioning property of the rectangular tubular body (A) can be enhanced.

Next, FIGS. 6 to 10 show a second embodiment of the cushioning material according to the present invention, in which a first corrugated cardboard paper (M) is continuously bent to form the first and second cushioning materials. Two pairs of prismatic bodies (A1) and (A2) are assembled in parallel.

That is, in FIG. 7 showing the expanded state of the cushioning material, (20r) (20f) (21) (22) (23) (24) (25) (26) (27) (28) (29). ) Is a plurality of folded ridgelines stamped in parallel with the short sides of the corrugated cardboard (M) having a rectangular punched contour shape, among which the most one end side and the other end side of the corrugated cardboard (M) are located. Two of them are set as the first and second outward bending ridgelines (20r) (20f), and the remaining nine intermediate positions are set as the first to ninth inward bending ridgelines (21) to (29), respectively. ing.

However, for convenience of explaining the folding operation, the reference numerals of the first to fifth inward folding ridgelines (21) to (25) are arranged in order from one end side to the other end side of the corrugated paperboard (M). Good, the signs of the 6th to 9th inward bending ridgelines (26) to (29) are written in order in the reverse order from the other end side to the one end side of the corrugated cardboard (M).

At this time, the mutual band of the first and second inward bending ridges (21) and (22) and the mutual band of the third and fourth inward bending ridges (23) and (24) are assembled into a rectangular cross section. The two sides of the second and third inward bending ridges (22) and (23) are arranged to be substantially equal in size to form the opposite short sides (x1) of the monogonal tubular body (A1) and the fourth zone. 5. The mutual zone of the inwardly bent ridgelines (24) and (25) is also dimensioned to be substantially equal as the long sides (y1) facing each other of the first rectangular tubular body (A1).

Further, the mutual area between the one end portion of the corrugated paper (M) and the first inwardly bent ridgeline (21) is more predetermined than the long side (y1) of the first rectangular tubular body (A1). The size is slightly wide, and the first outward bending ridgeline (20 r) interposed in the middle of the wide band can be bent into a mountain shape. One end of the corrugated cardboard (M) is shaped as a mountain-shaped first strut (30), and the strut (30) is embedded in the hollow inside of the first rectangular cylinder (A1), thereby The compressive strength is improved.

On the other hand, the mutual zone of the sixth and seventh inward bending ridges (26) and (27) and the mutual zone of the eighth and ninth inward bending ridges (28) and (29) are also assembled into a rectangular section. The rectangular cylinder (A2) is formed to have a short side (x2) facing each other, and is substantially equally dimensioned, and the mutual band of the seventh and eighth inward bending ridgelines (27) and (28) is the above-mentioned. It is designed to form the long side (y2) of the dihedral cylinder (A2). However, the mutual band of the fifth and ninth inward bending ridgelines (25) and (29) facing the long side (y2) is almost the same as the long side (y1) of the first rectangular tubular body (A1). The size has been expanded.

Further, the mutual band between the other end edge of the corrugated paper (M) and the sixth inwardly bent ridgeline (26) is slightly wider than the long side (y2) of the second rectangular tubular body (A2). The second outwardly bent ridgeline (20 f) interposed in the middle of the vast band is bent into a mountain shape. The other end of the corrugated paper (M) is shaped as a mountain-shaped second strut (31), and the strut (31) is buried in the hollow inside of the second rectangular tubular body (A2). The compressive strength up is achieved.

In this regard, in the illustrated embodiment, the short sides (x1) (x2) of the first and second rectangular tubular bodies (A1) and (A2) are sized to be substantially equal to each other, but the first rectangular tubular bodies are By changing the long side (y 1) of (A1) longer than the long side (y2) of the second rectangular cylinder (A2), the first rectangular cylinder (A1) is changed to the second rectangular cylinder (A2). ), The first strut (30) in the first rectangular cylinder (A1) has a large chevron shape, and the second rectangular cylinder (A2) has a larger rectangular cross section. 2 Although the strut pieces (31) are formed as small ridges and are changed differently, even if the strut pieces (30) (31) and the rectangular tubular bodies (A1) (A2) are assembled in the same rectangular cross section, good.

In this case, the vertices (z1) (z2) of the first and second strut pieces (30) (31) forming the mountain shape have long sides (in the first and second rectangular tubular bodies (A1) and (A2) ( It is preferable to position the center of y1) and (y2) so that line contact can be made correctly from the inside.

Reference numeral (32) is a first insertion fixing piece bent and raised from the central portion of the fifth inward bending ridgeline (25), simultaneously with or separately from the contour punching of the corrugated paper (M), or separately. It is cut out. Reference numeral (33) is a receiving port for the fixing piece (32), which is punched in the central portion on the first inwardly bent ridgeline (21).

As shown in FIG. 8, the first insertion fixing piece (32) and its receiving port (33) are located at the corners of the first rectangular tubular body (A1) and can be engaged and disengaged from each other. By being stopped, the assembled state of the first rectangular cylinder (A1) is fixedly held.

Further, (34) is a second bending bent from the mutual area of the fifth and ninth inward bending ridgelines (25) and (29) in the direction opposite to the first insertion fixing piece (32). It is a fixed piece that is inserted, and is also cut out at the same time as the contour punching of corrugated paper (M) or separately. Reference numeral (35) is a receiving port for the fixing piece (34), which is formed corresponding to the central portion on the sixth inward bending ridgeline (26).

Then, as shown in FIG. 8, the second insertion fixing piece (34) and its receiving port (35) are positioned corresponding to the corner portion of the second rectangular tubular body (A2), and their mutual relations. It is detachably locked to fix and maintain the assembled state of the second rectangular cylinder (A2).

When the short side of the corrugated paper (M) has a large size, the number of the first and second insertion fixing pieces (32) (34) and the receiving ports (33) (35) is increased. It goes without saying that you can do it. It is also possible to use a tacker or other fixing tool instead of fixing the corner portions of the first and second rectangular tubular bodies (A1) and (A2) by the engagement force that can be engaged and disengaged.

When assembling the cushioning material of the second embodiment from the corrugated paperboard (M) in the unfolded state as described above, first one end side of the corrugated paperboard (M) is bent to the first outward ridge line ( 20 r) is bent into a mountain shape, and the first tension piece (30) is formed on one end of the corrugated paperboard (M).

Then, the first inward folding ridgeline (21) is sharply bent in the opposite direction, and then the corrugated corrugated paper (M) is covered with the other first corrugated paper (M) so as to surround the first projection piece (30). The corrugated cardboard paper (M) is sequentially bent inward at right angles from the second to fourth inward bending ridgelines (22) to (24) toward the end side to form a first rectangular tubular body (A1) having a rectangular cross section. Assemble to.

Then, the first insertion fixing piece (32), which is positioned corresponding to the corner portion of the first rectangular tubular body (A1), is inserted and locked into the receiving opening (33) from the outside, The assembled state of the first rectangular cylinder (A1) is fixed and maintained so as not to lose its shape.

On the other hand, the other end of the corrugated cardboard (M) is bent into a chevron shape from the second outwardly bent ridgeline (20f), and the second tension piece (31) is attached to the other end of the corrugated cardboard (M). ), And then sharply bend in the opposite direction from the sixth inward bending ridge (26).

After that, the corrugated cardboard paper (M) is placed inside the seventh to ninth parts toward the one end side of the corrugated ball paper (M) so as to surround the second mountain-shaped second tension piece (31). The fold lines (27) to (29) facing inward are sequentially bent inward at right angles, so that the second rectangular tubular body (A2) having a rectangular cross section is three-dimensionalized.

Therefore, finally, the second insertion fixing piece (34) is inserted into the receiving port (35) from the outside and locked, thereby locking the corner portion of the second rectangular tubular body (A2). However, the assembled condition is still stable and firm.

As is apparent from FIG. 6, the cushioning material of the second embodiment assembled and completed in this way is separated from the first and second rectangular tubular bodies (A1) ( A2) is provided, and therefore, as shown in FIG. 5, by inserting into the outer box (B) so that the overall flat base surface faces the outer box (B), After all, the article (C) can be protected safely.

In that case, as is apparent from the modified use example of FIGS. 9 and 10, the above-mentioned constant interval (w) of the first and second rectangular cylinders (A1) and (A2) is shorter than that of the first rectangular cylinder (A1). The dimension is made substantially equal to the side (x1), and the first prismatic tubular body is further bent and bent inward at a right angle so as to close the constant interval (w) from the fifth inward bending ridgeline (25). It is also possible to assemble the second rectangular tubular body (A2) in (A1) so that the second rectangular tubular body (A2) is stacked and intersects, so that it has an overall L-shaped cross section.

According to this, the cushioning material of the second embodiment can be inserted and used in the corners of the outer box (B). In that case, the assembled state of the first and second assemblies (A1) and (A2) intersecting with the L-shaped cross section may be fixed and maintained by a tacker or other fixing tool so as not to bend back.

Even in the cushioning material of the second embodiment, the mountain-shaped first and second strut pieces (30) to be surrounded by the first and second rectangular tubular bodies (A1) and (A2). It is needless to say that the cushioning property of the cushioning material can be enhanced by intentionally making the (31) smaller than the rectangular cross section of the first and second rectangular tubular bodies (A1) and (A2).

Furthermore, FIGS. 11 to 15 show a third embodiment of the cushioning material according to the present invention, and the basic main structure thereof is the same as that of the second embodiment of FIGS. 6 to 10. Therefore, only the difference from FIG. 11 to FIG.

That is, in the cushioning material of the third embodiment, the first and second rectangular cylinders (A1) and (A2) assembled from a single piece of corrugated paper (M) in a rectangular cross-section are then turned inward. It is constructed so that it can be assembled as an overall L-shaped section by bending and bending at a right angle, and in particular, its assembled state can be continuously fixed and maintained.

(36) and (37) are the first and second insertion cover pieces therefor, and as is apparent from the expanded state of FIG. 12, the first insertion cover piece (36) can be placed on the corrugated paper (M). As a small rectangle attached to the mutual zone of the fourth and fifth inward bending ridges (24) and (25), the second insertion cover piece (37) is also the fifth and ninth inward bending ridges (25) ( As a large rectangle attached to the mutual zone of 29), each of them is continuously and integrally projected from both long sides of the corrugated paper (M).

The corrugated cardboard (M) is preliminarily punched as a contour-shaped one-piece article that also includes a pair of facing first and second insertion cover pieces (36) and (37). Is.

In this case, as described above also in the second embodiment, the mutual band of the second and third inward bending ridges (22) and (23) and the mutual band of the fourth and fifth inward bending ridges (24) and (25). The zone forms the opposite long sides (y1) of the first rectangular cylinder (A1) that is assembled in a large rectangular cross section, but the mutual zones of the fifth and ninth inward bending ridgelines (25) and (29) are also The dimension is approximately equal to the long side (y1) of the first prismatic body (A1).

On the other hand, the opposing long sides (y2) of the second rectangular tubular body (A2) assembled in a small cross section rectangle have the mutual zones of the seventh and eighth inward bending ridgelines (27) and (28) and the fifth and the above. 9 will be shaped by the interzone of inwardly bent ridges (25) (29). The short sides (x1) and (x2) of the first and second rectangular cylinders (A1) and (A2) have almost the same dimensions.

The second insert cover piece (37) has a long constant band width (L1) which is about the same size as the mutual band of the fifth and ninth inward bending ridgelines (25) and (29). Contrary to the long side (y1) of the first rectangular cylinder (A1), the first insertion cover piece (36) is bent from the extension of the fourth inward bending ridgeline (24) to the fifth inward bending. As a constant band width (L2) that does not reach the extension of the ridge (25), it is dimensioned shorter than the second insert cover piece (37). The constant band width (L2) of the first insertion cover piece (36) is approximately the same as the long side (y2) of the second rectangular tubular body (A2).

In other words, the first and second insertion cover pieces (36) and (37) have a constant gap (w) of approximately the same size as the short sides (x1) and (x2) of the first and second rectangular tubular bodies (A1) and (A2). ) Are kept in parallel with each other, which corresponds to the mutual distance (w) between the first and second rectangular tubular bodies (A1) and (A2) described in the second embodiment, For convenience of description, enter the same code.

(38), (39), (40) and (41) are first and second insertion cover pieces (36) (37) each of which is bent into an L-shape, and therefore is a base protruding from the corrugated paper (M). Two inwardly bent ridgelines parallel to each other, stamped and stamped at the end and in the middle, both of which are foldable ridges for assembling the first and second rectangular tubular bodies (A1) (A2) into a rectangular cross section. It is orthogonal to (20r) (20f) (21) (22) (23) (24) (25) (25) (26) (27) (28) (29).

At this time, the base end inward bending ridges (38) (40) of the first and second insertion cover pieces (36) (37) and the midway part inward bending ridges (39) (41) are mutually connected. The zone is dimensioned approximately the same as the short sides (x1) (x2) of the first and second rectangular tubular bodies (A1) (A2).

Similarly, the mutual band between the inwardly bent ridgelines (39) (41) in the midway portion and the projecting tip edges of the first and second insertion cover pieces (36) (37) is also the first and second rectangular tubular bodies ( It is dimensioned almost the same as the short side (x1) (x2) of A1) (A2), but this is the short side (x1) (x2) of the first and second rectangular tubular bodies (A1) (A2). By making the size larger than that, the insertion amount with respect to the first and second rectangular cylinders (A1) and (A2) may be deepened and the locking force thereof may be strengthened.

Similar to the cushioning material of the second embodiment, the mutual zone of the first and second inward bending ridgelines (21) and (22) is the short side (of the first rectangular cylinder (A1) assembled into a large cross section rectangle (A1). x 1) is formed, but the first receiving notch of the second insertion cover piece (37) is formed at a position deviated from the first inward folding ridgeline (21) to one end side of the corrugated paper (M) by a certain amount. At a position where (42) is also deviated from the second inwardly bent ridgeline (22) to the opposite end side of the corrugated paper (M) by a certain amount, the second receiving cover piece (37) of the second receiving cover piece (37) is also received. Each of the notches (43) is formed correspondingly as a pair of facing notches which are cut at a certain depth from both long sides of the corrugated paper (M).

Moreover, the above-mentioned constant deviation amounts are equal to each other, and each of them is sized substantially the same as the short side (x1) of the first rectangular cylinder (A1), whereby the first rectangular cylinder (A1) is formed. When assembled into a cross-section rectangle, its first and second receiving notches (42) (43) face each other correctly so as to traverse the second insert cover piece (37) at the same time. It has become.

Further, (44) is also a third receiving notch for receiving the second insert cover piece (37), which is also a pair of opposing cardboards located on the seventh inward bending ridgeline (27). A certain depth is cut from both long sides of the paper (M).

When the first and second rectangular tubular bodies (A1) and (A2) assembled in the rectangular cross section are bent and bent inward at right angles to each other and assembled into the overall L-shaped cross section. The inside of the first to third receiving notches (42) (43) (44) whose third receiving notch (44) directly communicates with the second receiving notch (43) and is correctly aligned on the straight line. Securely receive the second insert cover piece (37).

That is, when the second insertion cover piece (37) is inserted and locked in a state of straddling the both mouths of the first and second rectangular tubular bodies (A1) and (A2), The entire assembly state of the L-shaped cross-section by the two-sided tubular bodies (A1) and (A2) can be fixed and maintained without deformation. In other words, the constant band width (L1) of the second insertion cover piece (37) is the short side (x1) of the first rectangular cylinder (A1) and the long side of the second rectangular cylinder (A2). The relation is set almost equal to the total dimension with (y2).

On the other hand, the first insert cover piece (36) has the same second dimension as the short intervals (w) of the short sides (x1) and (x2) of the first and second rectangular cylinders (A1) and (A2). By being separated from the insert cover piece (37), it is inserted and locked into the wood mouth surface of the first rectangular cylinder (A1) assembled in a large rectangular shape without interfering with the second insert cover piece (37). As a result, the first and second rectangular tubular bodies (A1) and (A2) having the L-shaped cross section are covered with the first and second insertion cover pieces (36) and (37). Has become.

(45) is a length reaching from the one edge of the corrugated paperboard (M) to the second receiving notch (43), and a pair of facing cutouts along both long sides of the corrugated paperboard (M). The first relief notch of (46) is also the length that reaches the third receiving notch (44) from the other end edge of the corrugated paperboard (M), and is also cut out along both long sides of the corrugated paperboard (M). These are a pair of second relief cutouts that face each other, and both of them are formed in the first and second rectangular tubular bodies (A1) and (A2) by letting in the first and second insertion cover pieces (36) (37). Achieved a general equalization with the grain surface. The amount of the first and second relief notches (45) and (46) cut out is substantially equal to the thickness dimension of the corrugated paperboard (M).

Further, (47) is located on the first outward-folded ridgeline (20r) imprinted on one end side of the corrugated cardboard (M) and has a certain depth from both long sides of the corrugated cardboard (M). A pair of first relief recessed grooves that are cut out to face each other, and a first protrusion piece (30) bent in a mountain shape from the first outward bending ridgeline (20r) is the first insertion cover piece (36). Prevent it from interfering with.

(48) is located on the second outward-folding ridgeline (20f) which is also embossed on the other end side of the corrugated paper (M), and from both long sides of the corrugated paper (M). A pair of second relief grooves, which are also notched by a certain depth, face each other, and the second projecting piece (31) bent in a mountain shape from the second outwardly bending ridgeline (20f) is the second insertion piece. It is designed to prevent interference with the cover piece (37).

In assembling the cushioning material of the third embodiment, similarly to that of the second embodiment, first, one end side of the corrugated cardboard paper (M) is removed from the first outward bending ridgeline (20r). It is bent into a large chevron, and the first tension piece (30) is formed on one end of the corrugated paper (M).

Then, the first inward bending ridgeline (21) is sharply bent in the opposite inward direction, and then the corrugated cardboard paper (M) is covered with the other first corrugated paper (M) so as to surround the first protrusion piece (30). The corrugated cardboard paper (M) is sequentially bent inward at right angles from the second to fourth inward bending ridgelines (22) to (24) toward the end side to form a large rectangular cross section as shown in FIG. Assemble into one-sided cylinder (A1).

Then, the first insertion cover piece (36) is sequentially bent inward at a right angle from the base end inward bending ridgeline (38) and the midway portion inward bending ridgeline (39) to form an L-shape. Along with shaping, from the overhanging tip end to the mouth end surface of the first rectangular tubular body (A1), in particular, the long side (y1) of the first rectangular tubular body (A1) and the chevron shape of the first strut (30). As shown in FIG. 15, the first rectangular cylinder (A1) is fixed so as not to lose its assembled state by inserting and locking it so that it can be inserted into and removed from the apex (z).

On the other hand, the other end of the corrugated cardboard (M) is bent into a small mountain shape from the second outward bending ridgeline (20f), and the second tension piece ( After shaping 31), sharply bend inward from the sixth inward bending ridge (26).

Subsequently, the corrugated cardboard (M) is turned inward toward the seventh to ninth sides toward the one end side of the corrugated cardboard (M) so as to wrap around the second mountain-shaped second tension piece (31). The bent ridge lines (27) to (29) are sequentially bent inward at right angles to assemble into a second rectangular cylinder (A2) having a small rectangular cross section as shown in FIG.

After assembling the second rectangular tubular body (A2), the corrugated cardboard paper (M) is bent up from the fifth inward folding ridgeline (25) at a right angle inward so as to be half-folded. The first rectangular cylinder (A1) having a large rectangular cross section and the second rectangular cylinder (A2) having a small rectangular cross section are stacked and assembled to form an overall L-shaped cross section.

Then, as apparent from FIG. 15, first and second receiving notches (42) (43) opening corresponding to the opposite long sides (y1) of the first rectangular tubular body (A1), and the first and second receiving notches (42) (43). The third receiving notch (44) opening on the short side (x2) of the dihedral cylinder (A2) is in a mating communication state in which the third receiving notch (44) is properly aligned in a straight line when viewed from the mouth surface thereof, so that the last As shown in FIGS. 11 and 13, the 1st to 3rd receiving notches (42), (43) and (44) have the second insertion cover piece (37) which is bent and shaped into an L shape like the first insertion cover piece (36). It is inserted and locked so that it can be freely inserted and removed from the protruding tip.

In that case, the tip end of the second insertion cover piece (37) forms the long side (y2) of the second rectangular tubular body (A2) and the mountain-shaped apex (z) of the second bracing piece (31). Of course, the second insertion cover piece (37) extends over both the mouths of the first and second rectangular cylinders (A1) and (A2) as is apparent from FIG. As a result of being locked in a straddling state, the assembled state in which both of them intersect with each other in the overall L-shaped cross section is securely fixed and maintained without fear of deformation or bending back.

Then, the cushioning material of the third embodiment is used by being inserted into the corners of the outer box (B) as shown in FIG. 16 to protect the article (C) safely. . In any of the first to third embodiments, the assembled state can be bent back to the unfolded state, and the single corrugated cardboard paper (M) can be stacked and stored in a space-saving manner. Needless to say.

[0081]

[Effect of device]

 As described above, in the assembling cushioning material for packaging according to the present invention, a single corrugated cardboard paper (M) having a rectangular contour shape is provided with a plurality of folding ridge lines (10) parallel to the short sides thereof. (11) (12) (13) (14) are engraved, and one end of the corrugated paper (M) is bent into a mountain shape from one bent ridgeline (10) located on one end side thereof. As a result, all of the bent ridgelines (11) to (14) are formed on the corrugated paper (M), and the corrugated paper (M) is continuously formed from the bracing piece (17) toward the other end of the corrugated paper (M). ) In order to form a rectangular corrugated body (A) having a rectangular cross-section, which surrounds the strut (17), so that a single piece of corrugated paper ( Despite being composed of M), it is wrapped in its inner part The mountain-shaped strut member (17), and sufficient strength against compressive forces from the outside, it is possible to exert an effective cushioning properties, significantly excellent in mass productivity.

Further, since it is made of a single piece of corrugated cardboard paper (M), it can be stored and stored in a large amount in its expanded state, and it is excellent in space saving effect. It is easy to assemble and use, and unlike foamed plastic products, it does not cause any problems during regeneration.

Further, if the structure of claim 2 is adopted, the two pairs of the first and second rectangular tubular bodies (A1) and (A2) enclosing the mountain-shaped bracing pieces (30) (31) are fixed. Since they are assembled in parallel with the space (w) maintained, they can be inserted and used as if they were applied to the flat surface of the outer box (B). There is an effect that can be performed very easily.

In this case, if the configuration of claim 3 is adopted, the assembled state of the rectangular tubular body (A) (A1) (A2) having a rectangular cross section is fixed and maintained without fear of bending back or deformation. There is also an effect that the convenience in handling can be enhanced.

In particular, if the structure of claim 4 is adopted, the outer box (B) is assembled because the first and second rectangular tubular bodies (A1) and (A2) are assembled into an overall L-shaped cross section. ) Can be conveniently inserted and used in the corners, and is extremely effective in reinforcing and cushioning the corners.

If the structure of claim 5 is adopted, the first and second rectangular tubular bodies (A1) and (A2) are covered with the cover piece (37) which is inserted and locked in a state of straddling the both mouths thereof. It can be said that the assembled state of the L-shaped cross section can be fixed and maintained without fear of losing its shape, and that it is a remarkably rational design as a necessary configuration therefor.

[Brief description of drawings]

FIG. 1 is a perspective view showing an assembled state of a cushioning material according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a developed state of FIG.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a sectional view showing a cushioning action of a modified example corresponding to FIG.

FIG. 5 is a schematic vertical sectional view showing a usage state of the cushioning material.

FIG. 6 is a perspective view showing an assembled state of a cushioning material according to a second embodiment of the present invention.

FIG. 7 is a plan view showing a developed state of FIG.

8 is a sectional view taken along line 8-8 of FIG.

9 is a perspective view of a modified use example corresponding to FIG.

FIG. 10 is a plan view of FIG.

FIG. 11 is a perspective view showing an assembled state of the cushioning material according to the third embodiment of the present invention.

12 is a plan view showing a developed state of FIG. 11. FIG.

13 is a sectional view taken along line 13-13 of FIG.

FIG. 14 is a perspective view showing a bending process of FIG.

FIG. 15 is a perspective view showing a folding process subsequent to FIG.

FIG. 16 is a schematic cross-sectional view showing how the cushioning material is used.

[Explanation of symbols]

 (10) -Outward-folding ridgeline (11) -First inward-folding ridgeline (12) -Second inward-folding ridgeline (13) -Third inward-folding ridgeline (14) -Fourth inward-folding ridgeline (15) ) Fifth inward bending ridge (17), tension piece (18), insertion fixing piece (19), fixing piece receiving port (20r), first outward bending ridge (20f), second outward bending ridge (21) ) ・ First inward bending ridge (22) ・ Second inward bending ridge (23) ・ Third inward bending ridge (24) ・ Fourth inward bending ridge (25) ・ Fifth inward bending ridge (26) ) · 6th inward bending ridgeline (27) · 7th inward bending ridgeline (28) · 8th inward bending ridgeline (29) · 9th inward bending ridgeline (30) · 1st bracing piece (31) · Second collision Tension piece (32), first insertion fixing piece (33), fixing piece receiving port (34), second insertion fixing piece (35), fixing piece receiving port (36), first insertion cover piece (37), Second insertion cover piece (38) -Base end inward bending ridge (39) -Midway inward bending ridge (40) -Base end inward bending ridge (41) -Midway inward bending ridge (A) -Square cylinder (A1), first rectangular cylinder (A2), second rectangular cylinder (B), exterior box (M), corrugated paper (L1), constant band width (L2), constant band width (x), short side (X1) -short side (x2) -short side (y) -long side (y1) -long side (y2) -long side (w) -constant interval

Claims (5)

[Scope of utility model registration request] 1. A single corrugated cardboard paper (M) having a rectangular contour shape is provided with a plurality of folding ridge lines (10) (11) (12) (13) (14) parallel to its short sides. An engraved mark is formed by bending one end of the corrugated cardboard paper (M) into a mountain shape from one bending ridgeline (10) located on one end side thereof to form a tension piece (17), and from the tension piece (17) Continued corrugated paper (M)
The corrugated paperboard (M) is sequentially bent inwardly from all the remaining folding ridgelines (11) to (14) toward the other end of the above-mentioned corrugated paper sheet (M).
7) An assembling type cushioning material for packaging, characterized in that it is assembled into a rectangular tubular body (A) having a rectangular overall cross-section that surrounds 7). 2. A single corrugated cardboard paper (M) having a rectangular contour shape, and a plurality of folding ridges (20r) (20f) (21) (22) (23) (parallel to the short sides thereof. Two
4) (25) (26) (27) (28) (29) are engraved, and one end of the corrugated paper (M) is mountain-shaped from one bent ridgeline (20r) located on one end side thereof. By bending the first corrugated paper (M) toward the other end side of the corrugated paperboard (M), several folding ridgelines ( 21) to (24) are sequentially bent inward at right angles to assemble into a first rectangular tubular body (A1) having an overall rectangular cross section surrounding the first tension piece (30), while the corrugated paperboard is also used. From one bending ridgeline (20f) located on the other end side of (M), the other end of the corrugated paperboard (M) is also bent into a mountain shape to form a second tension piece (31). Pull out from the strut (31) Continue toward the opposite end of the corrugated board (M),
Are bent inward at right angles in order from the remaining remaining bending ridgelines (26) to (29) to form a second rectangular tubular body (A2) having a rectangular cross section surrounding the second bracing piece (31). An assembling type cushioning material for packaging, characterized in that the first and second rectangular tubular bodies (A1) and (A2) are assembled and kept in a parallel state in which they are separated from each other by a constant distance (w). 3. A rectangular tubular body (A) (A1) (A) having a rectangular cross section.
Insert the fixing pieces (18) (32) into the corner of 2).
(34) and the receiving ports (19), (33) and (35) thereof are formed in a corresponding manner, and the receiving ports (19), (33) and (35) are engaged with each other so as to be engageable with and disengageable from each other. The assembled cushioning material for packing according to claim 1 or 2, wherein the assembled state is fixed and maintained. 4. A piece of corrugated cardboard paper (M) having a rectangular contour shape, and a plurality of folding ridge lines (20r) (20f) (21) (22) (23) (parallel to the short sides thereof. Two
4) Mark (25), (26), (27), (28) and (29), and from one bent ridgeline (20r) located on one end side of the corrugated paper (M), make one end a large mountain. By folding the corrugated paper into a mold, a first supporting piece (30) is formed, and several corrugated ridges that leave the corrugated paper (M) remaining from the first supporting piece (30) toward the other end side of the corrugated paper (M). (21) to (24) are sequentially bent inwardly at right angles to assemble the first supporting piece (30) into a first rectangular tubular body (A1) having a large rectangular cross section, while the corrugated cardboard paper ( The second bulge (31) is formed by bending the other end of the corrugated cardboard paper (M) into a small chevron from one bent ridgeline (20f) located on the other end of M). A piece (31) Continue toward the opposite end of the corrugated paper (M), and then the corrugated paper (M)
The second rectangular tubular body (A2) having a small cross-section rectangular shape surrounding the second bracing piece (31) by sequentially bending inward at right angles from the remaining remaining bending ridgelines (26) to (29). Assembled into the first and second rectangular cylinders (A1) and (A2), and the short side (x
The first distance is set so as to be separated by a constant distance (w) having substantially the same size as 1), and the constant distance (w) is continuously closed.
By bending and raising the rectangular tubular body (A1) inwardly at a right angle from the bending ridgeline (25) located at the corner portion,
An assembling type cushioning material for packaging, characterized in that it is assembled into an overall L-shaped cross section that intersects with a rectangular tubular body (A2). 5. A short side (x1) and a second side of the first rectangular cylinder (A1)
Insert cover piece (37) having a constant band width (L1) approximately equal to the total dimension of the long side (y2) of the rectangular tubular body (A2).
Of the rectangular corrugated paper (M) are continuously and integrally projected from the long side of the rectangular corrugated cardboard paper (M), and the first and second rectangular tubular bodies (A1) are formed on the projecting base end and the middle of each insertion cover piece (37). ) Bending ridgelines (20r) (20f) (21) (22) (2) for assembling (A2) into a rectangular cross section
3) (24) (25) (26) (27) (28) (2
9) The two folding ridgelines (40) (41) orthogonal to 9) are engraved, and the L-shaped insert cover pieces (37) bent inward at right angles from the folding ridgelines (40) (41) , The first and second rectangular tubular bodies by being inserted into and interlocking with the both mouths of the first and second rectangular tubular bodies (A1) and (A2) intersecting with the overall L-shaped cross-section. The assembling type cushioning material for packing according to claim 4, wherein the assembled states of (A1) and (A2) are fixed and maintained.