JP3985235B2 - Packing cushioning material - Google Patents

Description

The present invention relates to a cushioning material for packing, and more particularly, to a cushioning material for packaging in which a single rectangular corrugated cardboard is used as an overall constituent material and a measure for increasing the load resistance is taken .

  FIG. 15 is a schematic exploded perspective view of the cushioning material 100 for packing and the outer box 200 in which the cushioning material 100 is loaded, and FIG. 16 is a longitudinal sectional view of the state in which the cushioning material 100 is loaded in the outer box 200. It is shown.

  As shown in FIG. 15, the cushioning material 100 has a rectangular bottom plate 1 and rectangular tubular box-shaped portions 2, 2 that are located on both sides of the bottom plate 1 and are connected to the bottom plate 1. The bottom plate 1 and the box-shaped portions 2 and 2 on both sides thereof form a recess 12 in which an article can be stored. The cushioning material 100 is manufactured as a whole by bending or cutting up one rectangular corrugated cardboard. Further, as shown in FIG. 16, the cushioning material 100 is accommodated in the outer box 200 together with an object to be packed (for example, an electric and electronic device such as a projector) protected by another cushioning material 300. When storing or transporting, the packaging A is often loaded over a predetermined number of stages, and therefore the packaging A has a strength that does not crush or deform due to the loading load. Required.

  In particular, because the market for electronic devices such as projectors is expanding worldwide, when transporting products such as projectors, it is often the case that the containers are packed in containers and pass through the tropics. In addition, the outer box (carton) is required to be able to withstand a certain load load under a high temperature and high humidity condition even if it is made of cardboard.

  In this regard, the strength of the packaging A shown in FIG. 16 is mainly determined by the strength of the outer box 200, the strength of the cushioning material 100, and the like. Conventionally, the packaging of the outer box 200 is made by using thick cardboard. Although the load-bearing load required for A was satisfied, the thicker the cardboard, the higher the price. Therefore, in order to keep the price of the packaging A low, an inexpensive thin cardboard is used as the material of the outer box 200. It is beneficial to compensate for the lack of load bearing capacity that can be caused thereby by the structural features of the cushioning material 100.

On the other hand, conventionally, it is known to use a single rectangular corrugated cardboard as an entire constituent material of a cushioning material having a recess for accommodating articles (for example, see Patent Document 1). It is also known that a cushioning material having a configuration in which a projector is arranged in the center is manufactured by a pulp mold method (see, for example, Patent Document 2 or Patent Document 3). Further, a cushioning material having a combination of a holding body and a support body made of two cardboards has also been known (see, for example, Patent Document 4).
JP-A-8-26345 JP 2003-63569 A WO2002 / 030787 JP 2002-87472 A

  However, in any of Patent Documents 1 to 4, there is a description of a measure that uses an inexpensive thin corrugated cardboard as a material for the outer box and compensates for a lack of load resistance that may occur due to the structural characteristics of the cushioning material. Absent.

The present invention has been made under the above circumstances, and an object thereof is to provide a packing cushioning material in which one rectangular corrugated cardboard is used as an overall constituent material and a measure for increasing the load resistance is taken. Yes.

  Another object of the present invention is to provide a packing cushioning material that is excellent in workability on a factory line when the cushioning material is manufactured using one rectangular cardboard.

The cushioning material for packing according to the present invention is located on both sides of a rectangular bottom plate and the bottom plate, and is connected to the bottom plate and is formed into a square cylinder shape by an upper plate, a lower plate, an inner plate and an outer plate. and a box-shaped portion of the opening, the bottom plate and an article by the aforementioned box-shaped portion on both sides have been capable of accommodating recesses formed, and a single rectangular cardboard a whole constituent material.
And a support plate interposed between the upper and lower plates of the box-shaped part in the internal space of the box-shaped part to increase the load resistance of the box-shaped part. This support is composed of a downward-facing piece formed by cutting and raising a part of the inner plate downward and a laterally-formed piece formed by folding a part of the inner plate toward the inside of the box-shaped portion along a vertical fold line. The plate is provided at two locations, one end side and the other end side of the box-shaped portion, and the downwardly facing pieces of the support plate are inclined so that the closer to the outer end side of the upper plate, the farther away from each other. They are deployed symmetrically.
Further, a locking piece that is locked to the lower end of the downward piece and prevents the downward deformation of the downward piece is formed by raising a part of the lower plate upward.
Further, the inner plate of the box-shaped part rises from the inner end side of the lower plate, the upper side of the inner plate overlaps the inner end side of the upper plate, and the rising piece raised from the side of the bottom plate is the upper plate. Connected to the inner edge, the inner plate and the rising piece overlap to form a double wall, and a connecting piece formed by cutting out a part of the rising piece is opened on the inner plate The inner plate is connected to the rising piece by the connecting piece inserted into the cut.
Furthermore, the internal space of the box-shaped part has a size that can accommodate an article, and the cut-and-raised mark of the downward piece is formed as an opening window through which the article accommodated in the internal space can be viewed. Yes.
Furthermore, an entrance / exit of an article accommodated in the internal space of the box-shaped part is opened on the outer plate of the box-shaped part, and the upper plate of the box-shaped part and the double plate are formed on the lower plate of the box-shaped part. An inclined piece abutted on the inner surface of the corner portion formed by the wall is cut and formed, and an opening formed by the cut and raised trace of the inclined piece is continuous with the entrance / exit.
In addition, when the opening window is closed by the downward piece before cutting up, there is a work opening in which the thumb of the hand inserted from the opening of the internal space of the box-shaped part can be inserted. It is formed continuously, and the downward piece can be folded downward using the thumb inserted into the work opening, and the thumb of the hand extends from the opening to the internal space of the box-shaped part. The middle finger of the same hand can be placed under the lower plate of the box-shaped part in conjunction with the insertion of the index finger and the index finger. A stop piece can be brought to the front side of the lower end of the downward piece folded downward with the thumb using the index finger.

With this configuration, the vertical load applied to the box-shaped portion of the square cylindrical shape can be received not only by the upper plate, the lower plate, the inner plate and the outer plate of the box-shaped portion, but also by the support plate. The load capacity increases accordingly. In addition, since the support plate is formed by cutting and raising a part of the upper plate of the box-shaped portion, it is possible to structurally increase the load-bearing load of the cushioning material manufactured by one cardboard. .

In the present invention, the inner plate of the box-shaped part rises from the inner end side of the lower plate, the upper side of the inner plate overlaps the inner end side of the upper plate, and the rising piece raised from the side of the bottom plate is the upper side. by the inner plate inner end is provided continuously to a side of Teso these plate and rising pieces form a double wall overlap, it helps the double wall increases the strength of the box-shaped portion, The load carrying capacity of the cushioning material made of one cardboard is further increased.

In the present invention, since it is formed by cutting and raising upward the portion of the lower plate of the locking piece the upper Symbol box-like portion for preventing the return deformation of its downward piece engages with the lower end of the downward piece, early reinforcing effect by its downward pieces are not compromised gone the downward piece back deformation due to vibration.

In the present invention, the support plate for increasing the load bearing capacity of the box-shaped part is provided at two locations, one end side and the other end side of the box-shaped part, and the downward piece of the support plate is the upper plate. The portions closer to the outer edge of the are inclined so as to move away from each other and are symmetrically arranged. For this reason, two places , one end side and the other end side of the box-shaped part, are reinforced by the support plate, and the vertical load is easily received uniformly in the entire box-shaped part, and the uneven load is applied to the local part of the box-shaped part. Is less likely to occur, increasing the load carrying capacity.

In the present invention, the internal space of the box-shaped part has a size capable of accommodating an article, and the cut and raised trace of the support plate is formed as an opening window through which the article accommodated in the internal space can be viewed. As a result, it is possible not only to bundle and accommodate the power cords of electric and electronic equipment in the box-shaped part, but also to determine whether the power cords are accommodated in the box-shaped part from the opening window. It can be confirmed visually. Therefore, when the cushioning material is accommodated in the outer box, when the customer opens the outer lid of the outer box, it can be seen from the opening window that the power cord is accommodated in the box-shaped part. There is convenience that we can know.

In the present invention, when the opening window is closed by the downward piece before being cut and raised, a work opening capable of inserting the thumb of the hand inserted from the opening of the internal space of the box-shaped portion is provided. It is formed continuously and the downward piece can be folded downward using the thumb inserted into the work opening . In addition, the middle finger of the same hand can be arranged on the lower side of the lower plate of the box-shaped part together with the insertion of the thumb and the index finger of the hand through the opening into the internal space of the box-shaped part. It is possible to bring the locking piece cut upward using the middle finger to the front side of the lower end of the downward piece folded downward by the thumb using the index finger. It is . By adopting this configuration, it is possible to perform the work of raising and lowering the downward piece and the positioning of the downward piece by the locking piece in a very short time and improve the assembly workability of the cushioning material. To do.

In the present invention, the outer plate of the box-shaped portion, by entrance of the article to be accommodated in the inner space of the box-shaped portion is opened, while it is housed the cushioning material on the box, with the doorway Thus, articles such as a power cord can be accommodated in the internal space of the box-shaped part.

In the present invention, an inclined piece abutted on the inner surface of the corner portion formed by the upper plate of the box-shaped portion and the double wall is cut and formed on the lower plate of the box-shaped portion. By adopting a configuration in which the opening formed by the cut and raised trace is continuous with the above-mentioned entrance and exit, the box-shaped portion is reinforced by the inclined piece and the load capacity is increased. When the article is taken in and out of the box-shaped part, the opening formed by the cut and raised mark of the inclined piece serves to facilitate the taking in and out operation.

When the packaging cushioning material according to the present invention is used for packaging, the loaded load can be received not only by the outer box but also by a cushioning material having a large load-bearing load. Since a shortage of the load capacity that can occur when used is compensated by the structural characteristics of the cushioning material, a sufficiently large load capacity is exhibited as a whole. Therefore, in the case of passing through the tropics with a container loaded container, even if the strength of the outer box decreases under high temperature and high humidity conditions, it is housed in the outer box and is not easily affected by high temperature and high humidity. In addition, there is an advantage that deformation of the outer box is prevented by the cushioning material that exhibits a large load capacity.

As described above, according to the present invention, a single rectangular corrugated cardboard is used as an overall constituent material, and the load carrying capacity is increased simply by adding a support piece formed by cutting and raising. Even if an inexpensive thin corrugated cardboard is used for the outer box, the insufficient load resistance due to the outer box can be compensated by the strength of the cushioning material. Therefore, even if the outer box is exposed to high-temperature and high-humidity conditions and its strength is reduced, such as when a ship with containers packed in a container passes through the tropical region, the impact of high-temperature and high-humidity is accommodated in the outer box. An excellent effect is achieved in that deformation of the outer box is prevented by a cushioning material that is difficult to receive and exhibits a large load capacity.
In addition, it is possible to perform an assembling operation accompanied by a work of raising and lowering the downward piece and a positioning operation of the downward piece by the locking piece in a very short time, and the assembling workability of the cushioning material is improved.

  1 is a plan view showing the left half of the packing material 100 for packing according to the present invention, FIG. 2 is an enlarged view seen from the direction of arrow II in FIG. 1, and FIG. 3 is a portion along the line III-III in FIG. FIG. 4 is an enlarged cross-sectional view, FIG. 4 is an enlarged cross-sectional view of a portion along line IV-IV in FIG. 1, and FIG. 5 is an enlarged cross-sectional view of a portion along line V-V in FIG.

  As can be seen from FIG. 1 and FIG. 2, the cushioning material 100 has a rectangular bottom plate 1 and a box-shaped portion 2 in the same manner as described with reference to FIG. 15. In the figure, only one box-shaped part 2 provided on the left side of the bottom plate 1 is shown for the box-shaped part 2, but this box-shaped part 2 maintains a symmetrical relationship also on the right-side side of the bottom plate 1. It is equipped. Therefore, in the following, in order to simplify the description, the illustrated structure of the left half will be mainly described, and the structure of the right half will be omitted.

  The bottom plate 1 and the box-shaped portions 2 on the left and right sides thereof form a recess 12 that can store an article, and the box-shaped portion 2 has an interior space that can store the article. . Then, in the recess 12, for example, accessory parts of a projector, which is an example of an electric / electronic device, are housed, and the power cord of the projector is bundled and housed in the internal space of the box-shaped portion 2. The cushioning material 100 is made of a single rectangular corrugated cardboard. That is, the cushioning material 100 is manufactured by subjecting a rectangular corrugated cardboard to bending processing, cutting processing, and punching processing.

  As can be seen from FIG. 1 to FIG. 3, the box-shaped portion 2 is formed into a hollow rectangular tube shape by the upper plate 21, the outer plate 22, the lower plate 23, and the inner plate 24, and the inner end of the lower plate 23. The upper side 24 a of the inner plate 24 rising from the side 23 a overlaps the inner end side 21 a of the upper plate 21, and the rising piece 13 rising from the left side 1 a of the bottom plate 1 is the inner end side of the upper plate 21. The inner plate 24 overlaps with the inner plate 24. Therefore, the inner plate 24 and the rising piece 13 form a vertical double wall 25, and this double wall 25 is useful for increasing the strength of the box-shaped portion 2 against a vertical load.

  The box-shaped portion 2 includes a support plate 3 and an inclined piece 4 in addition to the double wall 25 as elements that help increase the strength against vertical loads.

The support plate 3 in the illustrated example includes a downward piece 31 formed by cutting and raising a part of the upper plate 21 vertically downward, and a part of the inner plate 24 by a vertical fold line (described later). It consists of a horizontal piece 35 formed by bending inward. More specifically, the support plate 3 composed of a downward piece 31 and a lateral piece 35 is provided at two locations on one end side and the other end side of the box-shaped portion 2, of which two downward pieces 31, 31 are arranged symmetrically with each other so that the closer to the outer end side 21b of the upper plate 21, the more inclined to each other. Further, the two laterally extending pieces 35, 35 have cuts (described later) at one end side and the other end side of the corner portion of the lower plate 23 and the inner plate 24, and the inner plate 24 is fixed to the lower plate 23 by a certain length. It is formed by bending the cut portion toward the inside of the box-shaped portion 2 with a vertical fold line, and is disposed on the back portion of the downward piece 31 as shown in FIG. And like the case of the downward piece 31, it is desirable that the two lateral pieces 35, 35 are also inclined and arranged symmetrically with each other so that the closer to the outer end side 21b of the upper plate 21, the closer to each other. However, these laterally oriented pieces 35, 35 need not necessarily be arranged symmetrically.
Further, the inclined piece 4 is formed by cutting and raising the longitudinal direction (front-rear direction) central portion of the lower plate of the box-shaped portion 2, and the tip side 4 a is formed by the upper plate 21 and the double wall 25. The corner portion inner surface 26 is butted.

  As described above, even if the downward piece 31 is formed by cutting and raising a part of the upper plate 2 vertically downward, it has a return deformability (return wrinkle) to return to the original position. Therefore, as clearly shown in FIG. 4, a part of the lower plate 23 of the box-shaped portion 2 is cut and raised upward to form a locking piece 5, and the lower end of the downward piece 31 is locked to the locking piece 5. The return deformation is prevented. That is, the locking piece 5 is cut and formed so that the direction in which the locking piece 5 returns and deforms by its own return rod is opposite to the direction in which the downwardly facing piece 31 returns and deforms. By doing so, the locking piece 5 and the lower end of the downward piece 31 are pressed against each other so that the vertical posture of the downward piece 31 is maintained.

  Moreover, in the formation location of the above-mentioned double wall 25, the connecting piece 6 formed by cutting and raising a part of the rising piece 13 is inserted into the slit-shaped cut 27 formed in the inner plate 24 and locked. The inner plate 24 is connected to the rising piece 13 so as to overlap with the connecting piece 6. This point will be further described later.

  Further, as shown in FIG. 1 to FIG. 3 and FIG. 5, at the front and rear end portions of the bottom plate 1 and the rising piece 13, inverted L-shaped enclosure pieces 15 protruding toward the bottom plate 1 at the corners of the recess 12. These articles 15 prevent the article housed in the recess 12 from being displaced in the front-rear direction.

  In the cushioning material 100 configured as described above, the strength exerted only by the upper plate 21, the outer plate 22, the lower plate 23, and the inner plate 24 forming the basic shape of the box-shaped portion 2 is not so great. The inner plate 24 forms a double wall 25 together with the rising piece 13, the tip side 4a of the inclined piece 4 abuts against the inner surface 26 of the corner portion, and the shape retaining property of the box-shaped portion 2 is enhanced. As a result, the strength of the box-shaped portion 2 against the vertical load is increased. In addition to this, a downward piece 31 and a lateral piece 35 forming the support plate 3 are interposed between the upper plate 21 and the lower plate 23, and they are on one end side of the box-shaped part 2. And the other end side are provided in the internal space, the strength of the box-shaped portion 2 with respect to the vertical load is dramatically increased, and the two downward pieces 31 and the lateral pieces 35 are provided. Due to the outwardly inclined posture, it is difficult to apply an unbalanced load to the box-shaped portion 2, which increases the strength of the box-shaped portion 2 with respect to the vertical load and provides excellent shape retention. It is useful for that. Therefore, the packaging (carton) in which the cushioning material 100 is accommodated in the outer box has a large load resistance due to the action of the cushioning material 100, and as a result, the cardboard for manufacturing the outer box is thinned and its cost is reduced. It will be easier to go down.

  As described above, in the cushioning material 100, the internal space of the box-shaped portion 2 has a size that can accommodate articles such as a power cord. Then, as can be seen in FIG. 3, an entrance / exit 28 for taking in / out the article with respect to the internal space of the box-shaped portion 2 is formed at the center in the front-rear direction of the outer plate 22. Further, an opening 29 formed by cutting and raising the inclined piece 4 formed by cutting and raising a part of the lower plate 23 is continuous with the entrance 28. If the entrance 28 and the opening 29 are continuously opened across the outer plate and the lower plate 23 in this way, the area of the entrance 28 expands by the area of the opening 29, so the entrance 29 is used. Thus, there is an advantage that the operation when the article is put in and out of the internal space of the box-shaped portion 2 becomes easy.

  Further, as can be seen in FIG. 1 or FIG. 4, the cut and raised traces of the support plate 31 provided on one end side and the other end side of the upper plate 21 of the box-shaped portion 2 look into the articles contained in the internal space. It is formed as an open window 32 that can be seen.

  Next, FIG. 6 is a partially broken plan view illustrating the packaging A, and FIG. 7 is an explanatory view when an article is put in and out of the box-shaped portion 2.

In FIG. 6, reference numeral 200 denotes an outer box. In the cushioning material 100 accommodated in the outer box 200, the upper plate 21 of the box-shaped part 2 overlaps the upper lid 210 of the outer box 200. ing. In such a package A, when the upper lid 210 of the outer box 200 is opened, the opening window 32 formed by the cut and raised marks of the support plate 31 is formed at the opening of the outer box 200 as shown on the left side of FIG. Therefore, it is possible to immediately look into the article M such as the power cord accommodated in the internal space of the box-shaped part 2 from the opening window 32. Therefore, the customer by opening the upper lid 210 of the outer box 200, it is convenient that it is possible to know immediately which articles M such as the power cord is accommodated in the inner space of the box-shaped portion 2.

  Further, as shown by phantom lines in FIG. 7, if the opening / closing port 210 leading to the doorway 28 formed in the box-shaped portion 2 of the buffer material 100 is formed on the side plate of the outer box 200, the buffer material 100. After the container is accommodated in the outer box 200 and the packaging A is formed, the article M (see FIG. 6) such as a power cord is taken in and out of the box-shaped part 2 as shown by the arrow using the opening / closing port 210 and the entrance / exit 28. There is a convenience that becomes possible.

  Next, the configuration and manufacturing procedure of one rectangular corrugated cardboard used as the material of the cushioning material 100 having the above configuration will be described.

  FIG. 8 is a plan view showing the configuration of the left half of the rectangular cardboard 300. In the figure, only the left half of the cardboard 300 is shown, but the right half has a symmetrical shape or configuration. Therefore, in the following, in order to simplify the description, the illustrated structure of the left half will be mainly described, and the structure of the right half will be omitted.

  The corrugated board 300 is punched into a horizontally-long rectangular shape. A bottom plate 1 is formed at the center in the left-right direction, and a rising piece 13, an upper plate 21, an outer plate 22, a lower plate 23, and an inner plate 24 are arranged in this order from the bottom plate 1 to the outside. A compartment is formed. In the drawing, the imaginary lines indicate the boundaries of the sections, and in the process of assembling the cushioning material 100, the boundaries of the sections indicated by the imaginary lines are bent. Further, a straight cut 71 is formed on one end side and the other end side of the bottom plate 1 and the rising piece 13, and the surrounding pieces 15, 15 are formed by the cut 71 to form the bottom plate 1 and the rising piece 13. 13 is cut out. The surrounding piece 15 is bent at a position indicated by a two-dot chain line. A connecting piece 6 is cut out from the rising piece 13 by two parallel cuts 72, 72 at the front and rear and a cut 73 formed at the boundary between the upper plate 21, and at one end side root portion of the connecting piece 6. Is provided with a stepped recess 61. A downward piece 31 is cut out from the upper plate 21 by an L-shaped cut 74. An entrance / exit 28 is provided in the outer plate 22. In the lower plate 23, the inclined piece 4 is cut out by cuts 75, 75, and the locking piece 5 is cut out by a U-shaped cut 76. Further, the inner plate 24 is provided with a slit-shaped cut 27, and one end of the cut 27 is provided with a wide portion 27a. In addition, cuts 77 and 77 having a predetermined length are formed at one end side and the other end side of the boundary portion between the inner plate 24 and the lower plate 23, and the inner plate 4 is formed at the position where the cuts 77 and 77 are formed. The horizontal pieces 35, 35 are formed so as to be separated from 23.

In the first stage of the process of assembling the cushioning material 100, as shown in FIG. 9, the upper plate 21, the outer plate 22, the lower plate 23, and the inner plate 24 are bent at their mutual partition lines to form the basic shape of the box-shaped portion 2. In addition to creating a shape that approximates the shape, the inclined piece 4 and the connecting piece 6 are folded back in a predetermined direction using the fingers of the hand, and the approximate shape of the surrounding piece 15 is formed. Next, as shown in FIG. 10, the basic shape of the box-shaped portion 2 is formed, the tip side 4a of the inclined piece 4 is abutted against the inner surface 26 of the corner portion, the connecting piece 6 is inserted into the cut 27, and the surrounding piece 15 Form the basic shape.

  FIG. 12 shows a case where the connecting piece 6 is inserted into the cut 27 and the inner plate 24 of the double wall 25 and the rising piece 13 are connected in an overlapping manner. As described above, the connecting piece 6 includes the recessed portion 61, and the end 62 of the connecting piece 6 is bent at a substantially right angle as indicated by an arrow at the recessed portion 61, and the end portion 62 is widened by the cut 27 in this state. The whole connecting piece 6 is inserted into the cut 27 in accordance with the portion 27a. When the end 62 is straightened after insertion, the inner plate 24 is sandwiched between the end 62 of the connecting piece 6 and the rising piece 13 so that the inner plate 24 and the rising piece 13 of the double wall 25 overlap each other. Connected.

  When the box-shaped part 2 is assembled into the basic shape described with reference to FIG. 10, the downward-facing piece 31 cut out on the upper plate 21 of the box-shaped part 2 keeps the opening window 32 closed. . Further, the locking piece 5 cut out on the lower plate 23 is not cut up and raised. Therefore, as shown in FIG. 13 (A), the downward piece 31 is cut downward and bent to the back of the locking piece 5, and then the locking piece 5 is turned upward as shown in FIG. 13 (B). Then, the lower end of the downward piece 31 is locked to the locking piece 5. Further, the laterally facing piece 35 is bent inward of the box-shaped part 2 as indicated by an arrow.

  In this embodiment, the work of raising and folding the downward piece 31, the locking piece 5, and the lateral piece 35 described with reference to FIG. 13 can be performed in a short time by the operator using the thumb, index finger, and middle finger of the hand. It can be done easily and reliably.

  That is, as shown in FIG. 8 or FIG. 11, the work port 8 is opened on the side of the downward piece 31 before cutting up, and the opening window 32 (FIG. 4) is opened by the downward piece 31 before cutting up. And the like, so that the thumb of the hand inserted from the opening of the internal space of the box-shaped part 2 can be inserted into the work port 8 from below and hooked on the downwardly facing piece 31. It is. Further, as shown in FIG. 14, the middle finger T of the same hand is placed on the lower side of the lower plate 23 together with the insertion of the thumb F and the index finger S from the front and rear open ports into the internal space of the box-shaped part 2. Can be deployed to. For this reason, in addition to hooking the downward piece 31 with the thumb F inserted from below into the work port 8 and turning it downward, the locking piece 5 cut upward from the lower side of the lower plate 23 using the middle finger T is used. The operation of bringing the index finger S to the front side of the lower end of the downward piece 31 (see FIG. 13A) can be performed reliably and easily in a short time. In addition, the operation of bending the lateral piece 35 can also be performed using the index finger S.

  As described above, the work of raising and folding the downward piece 31, the locking piece 5, and the lateral piece 35 can be reliably and easily performed in a short time using the three fingers of the hand. If this is the case, even if the downward-facing piece 31, the locking piece 5 and the laterally-facing piece 35 are added in order to increase the load bearing capacity of the box-shaped part 2, there is a risk that the workability on the entire assembly line will be reduced. rare.

It is the top view which showed the left half of the cushioning material for packing which concerns on this invention. It is the enlarged view seen from the II arrow direction of FIG. It is an expanded sectional view of the part which follows the III-III line of FIG. It is an expanded sectional view of the part which follows the IV-IV line of FIG. It is an expanded sectional view of the part which follows the VV line of FIG. It is the partially broken top view which illustrated packing. It is explanatory drawing in the case of putting in / out goods to a box-shaped part. It is the top view which showed the structure of the left half of a rectangular cardboard. It is explanatory drawing which showed the first step of the process of assembling a shock absorbing material. It is explanatory drawing of the stage in which the basic shape of the box-shaped part of the shock absorbing material was formed. It is a top view of the stage in which the basic shape of the box-shaped part of the shock absorbing material was formed. It is an expanded sectional view of the part which follows the XII-XII line | wire of FIG. (A) is an explanatory view of a state where a downward piece is cut downward and bent to the back of the locking piece, and (B) is an explanatory view of a state where the lower end of the downward piece 31 is locked to the locking piece. is there. It is explanatory drawing about cutting and raising workability | operativity, such as a downward piece. It is the general | schematic disassembled perspective view which showed the shock absorbing material for packing, and the outer case. It is sectional drawing of the packing which loaded the shock absorbing material in the outer box.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Box-shaped part 3 Support plate 5 Locking piece 6 Connection piece 8 Work opening 12 Recess 13 Rising piece 21 Upper plate 21a Inner edge side of upper plate 22 Outer plate 23 Lower plate 23a Inner edge side 24 of lower plate Plate 24a Upper side of inner plate 25 Double wall 27 Cut 28 Entrance 29 Opening 31 Downward piece 32 Opening window 35 Lateral piece 100 Buffer material 200 Outer box F Thumb S Index finger T Middle finger

Claims (1)

A rectangular bottom plate and a box-shaped part open at both ends located on both sides of the bottom plate and connected to the bottom plate and formed into a square cylinder by an upper plate, a lower plate, an inner plate and an outer plate; In the cushioning material for packing, in which a recess capable of storing an article is formed by the bottom plate and the box-shaped portions on both sides thereof, and one rectangular corrugated cardboard is used as an overall constituent material,
A support plate that is interposed between the upper plate and the lower plate of the box-shaped portion in the internal space of the box-shaped portion to increase the load resistance of the box-shaped portion is a part of the upper plate of the box-shaped portion. And a laterally-shaped piece formed by bending a part of the inner plate toward the inside of the box-shaped portion with a vertical fold line. The box-shaped portion is provided at two locations, one end side and the other end side, and the downward pieces of the support plate are inclined and symmetrical with each other so that the closer to the outer end side of the upper plate, the closer to each other. Deployed to
A locking piece that locks to the lower end of the downward piece and prevents the downward deformation of the downward piece is formed by raising a part of the lower plate upward, and the inner plate of the box-shaped part is the lower plate Standing up from the inner edge, the upper edge of the inner plate overlaps the inner edge of the upper plate, and the rising piece rising from the edge of the bottom plate is connected to the inner edge of the upper plate and rises from the inner plate. A connecting piece formed by cutting and raising a part of the rising piece is inserted into a cut formed in the inner plate and overlapped with the piece to form a double wall and the inner plate by the connecting piece Is connected to the rising piece,
The internal space of the box-shaped part has a size capable of accommodating an article, and the cut-and-raised mark of the downward piece is formed as an opening window through which the article accommodated in the internal space can be peeked.
In the outer plate of the box-shaped part, an entrance for an article to be accommodated in the internal space of the box-shaped part is established, and on the lower plate of the box-shaped part, the upper plate of the box-shaped part and the double wall In addition to the fact that the inclined piece abutted on the inner surface of the corner portion formed by is cut and formed, and the opening formed by the cut and raised trace of the inclined piece is continuous with the entrance and exit ,
When the opening window is closed by the downward facing piece before being cut and raised, a work opening that can insert the thumb of the hand inserted through the opening of the internal space of the box-shaped portion is continuously formed. It is possible to fold the downward piece downward using the thumb inserted in the work opening, and the thumb and forefinger of the hand from the opening to the internal space of the box-shaped part. In conjunction with the insertion, the middle finger of the same hand can be deployed under the lower plate of the box-shaped part, and the locking piece cut and raised upward using the middle finger, A cushioning material for packing , which can be brought to the front side of the lower end of the downward piece folded downward with the thumb using the index finger .

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