JP2008120447A - Shock-absorbing material for packing and packing tool using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shock-absorbing material for packing which shows superior shock-absorbing properties and a high recycling rate. <P>SOLUTION: The shock-absorbing material for packing is integrally formed by bending a paperboard as a raw material, and is equipped with a box-shaped holding part 2 having an opening at one end for holding an article to be packed and flange parts 3 and 4 extending outside from an opening edge side of the holding part 2. The flange parts 3 and 4 consists of bent portions 3a and 4a bent outside from the holding part 2 in inverted approximately U-shaped manner, and flat external opening portions 3b and 4b extending from the bent portions 3a and 4a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a paper packaging cushioning material and a packaging tool using the same.

  In general, various products and parts that can be handled by hand such as motors, jar rice cookers, personal computers, cookers, or ceramics, glass bottles (hereinafter referred to as packaged items) are stored in a packing box. In order to prevent damage and damage from being directly applied to the packaged items, vibrations and shocks are applied to the packaged items. In addition, a cushioning material for packing that absorbs vibrations and impacts on the object to be packed is used.

  Conventionally, foamed polystyrene and pulp molds are frequently used as this type of packing cushioning material (see, for example, Patent Documents 1 and 2). In addition, a packaging cushioning material is formed by folding corrugated cardboard, etc., and a pair of packaging cushioning materials hold both ends of an object to be packed and the like, and both of them are stored in a packaging box. (For example, see Patent Document 3).

Japanese Patent Laying-Open No. 2005-212815 (page 9, FIG. 1) Japanese Patent Laying-Open No. 2003-165594 (left column on page 4, FIG. 1) Japanese Patent Laying-Open No. 2006-103729 (page 7, FIGS. 1 to 3)

  By the way, when the cushioning material for packing is made of polystyrene foam, the recycling rate is low (the recycling rate in Japan in FY2005 is about 42%), and it is difficult to satisfy the requirements that satisfy the recent global environmentally conscious measures. .

  The reason for this is that an expensive recycling plant for liquefaction and recycling is necessary, and the collection and transportation costs are high due to the bulkiness. Therefore, the recycling cost is high, and the mixing ratio of the expanded polystyrene collected in the recycled material is 10 If the ratio is more than%, the impact buffering property is inferior to the case of only the virgin material, and further, in the case of a fish box or the like, the odor remains and the reuse is disgusted.

  In addition, when the cushioning material for packing is a pulp mold, a large-scale facility is required for the manufacturing process, and a large amount of water is required to make the paper stock, so that the wastewater treatment becomes large. In addition, since the obtained cushioning material itself has extremely low elasticity, there is a problem that the shock cushioning is insufficient.

  Further, when the cushioning material for packing is made of corrugated paper, the recycling rate is higher than that of polystyrene foam and the like, and the amount of water used is less than that during pulp mold production. In the case of technology, because the top and bottom sides (upper and lower sides) do not have a function to hold the packaged item, the shock-absorbing property in the vertical direction is weak, and the part that is in contact with the left and right end surfaces in the longitudinal direction of the packaged item Similarly, impact buffering is weak. For this reason, there exists a malfunction that it is difficult to fully protect a weak packaged thing.

  The present invention has been made in order to solve the above-mentioned problems, and has a high recycling rate, is inexpensive, has excellent shock buffering properties, and can be easily inserted into a packing box. It aims at providing the used packing tool.

  In order to achieve the above purpose, the following configuration is adopted as a cushioning material for packing used to absorb vibrations and shocks to the packed object when the packed object is packed in a packing box. Yes.

  That is, in the present invention, it is integrally formed by bending using paperboard as a raw material, and a box-shaped holding portion having one end holding the packaged object is opened, and the opening end side of the holding portion is directed outward. Each flange portion has a bent portion bent outward in a substantially inverted U shape from the holding portion, and a flat plate-like outer opening portion extended from the bent portion. It is characterized by that.

  According to the present invention, since the paperboard having excellent strength is used as a raw material, a buffer packaging material having a recycling rate exceeding 60% can be obtained (particularly, when the paperboard is cardboard, the recycling rate is further increased), It becomes possible to manufacture at low cost with relatively simple equipment.

  In addition, by packing the packing material having a substantially box-shaped holding part that holds the packed object by bending the paperboard, the packed object is stored in the packing box while being held by the holding part. Can do. At this time, the shock-absorbing property against the impact is provided around the holding portion by the bent flange portion. And since the function to hold | maintain a to-be-packed object can be provided not only to front and back, right and left but to the top and bottom side (upper and lower sides), it can show a buffering effect with respect to an impact from any direction. For this reason, it is possible to sufficiently protect a fragile article to be packed.

Embodiment 1 FIG.
1 is a perspective view showing a cushioning material for packing in Embodiment 1 of the present invention, FIG. 2 is a perspective view of the cushioning material for packing viewed from the back side, and FIG. 3 is a plan view of the cushioning material for packing viewed from the front side. It is.

  The packing cushioning material 1 according to the first embodiment is integrally formed by bending a single paperboard having excellent strength. As the paperboard material in this case, for example, a laminated paper such as cardboard or corrugated cardboard that can secure thickness and hardness by being laminated, or a Japanese paper that can be easily formed when the thickness may be thin, is applied. Can do.

  In addition, since paper has low ductility, it can hardly be formed by ordinary press working. However, in recent years, it is impregnated with moisture before press working and is pressed with a mold heated to about 200 ° C. A relatively light molding process is possible by the method of drying while being held, and the hardness of the paper-based material is greatly increased by the process of water impregnation, pressing, and drying.

  Here, the cushioning material 1 for packing includes a box-shaped holding portion 2 having one end that holds an object to be packed, and a flange portion that extends outward from each side on the opening end side of the holding portion 2. 3 and 4 are provided.

  Here, the holding part 2 includes a rectangular flat bottom part 2a against which one end of the packaged item comes into contact, and wall surface parts 2b and 2c erected substantially vertically from each side of the bottom part 2a. Have. Also, the flange portions 3 and 4 are bent from the bent portions 3a and 4a that are bent in a substantially inverted U shape outward from the wall surface portions 2b and 2c of the holding portion 2, and are extended from the bent portions 3a and 4a. It is comprised from the flat-shaped outer opening part 3b, 4b.

  And each bending part 3a, 4a is significantly harder than paperboard by the press process and the subsequent drying process, Therefore, each bending part 3a, 4a has big elasticity. Further, each of the outer opening portions 3b and 4b is slightly bent outward from the bent portions 3a and 4a in order to absorb a dimensional error between the packing material 1 for packing and a packing box 21 described later.

  In the first embodiment, both the wall surface portion 2b and the flange portion 3 located on the long side of the bottom portion 2a of the holding portion 2 are formed such that the width is longer than the long side of the bottom portion 2a. Both the wall surface portion 2c and the flange portion 4 located on the short side of the bottom portion 2a of the holding portion 2 are formed so that the width thereof is the same as the short side of the bottom portion 2a. Therefore, each flange part 4 located in the short side of the bottom part 2a has entered inside the both-sides end of each flange part 3 located in the long side of the bottom part 2a. Thereby, the cushioning material 1 for packing has high intensity | strength with respect to the impact and compression force from the side surface of the flange part 3 of a long side.

  Further, each of the flange portions 3 and 4 has the same vertical height H1 from the apex of the bent portions 3a and 4a to the end of the outer opening portions 3b and 4b, and the vertical height H1. Is formed to be higher than the height H0 from the bottom 2a of the holding portion 2 to the apex of the bent portions 3a, 4a (H1> H0). Therefore, when the cushioning material 1 for packing is placed on the ground, for example, in the state shown in FIG. 1, the bottom 2a of the holding part 2 is lifted from the ground.

FIG. 4 is a plan view showing a state in which the cushioning material 1 for packing is developed into a single paperboard.
This paperboard is a bottom portion forming portion 12 in which a central rectangular region surrounded by a broken line in the figure becomes a bottom portion 2a by pressing, and a wall surface portion / flange forming portion 13, on each side surrounding the bottom portion forming portion 12, 14 are provided, and cuts 15 are formed at four locations on the boundary between the wall surface portion and flange forming portions 13 and 14, respectively.

  And when press-molding the cushioning material 1 for packing, the bottom wall forming part 12 is left and the surrounding wall surface part and flange forming parts 13 and 14 are vertically lifted and bent further outwardly in a U shape, The wall surface portions 2b and 2c and the flange portions 3 and 4 are formed. At this time, the bottom portion 2a and the wall surface portions 2b and 2c erected substantially vertically from the respective sides constitute a box-shaped holding portion 2. The

  FIG. 5 is a front cross-sectional view illustrating a state in which an object to be packed 22 is packed using the packing tool 20 including the packing material 1 and the packing box 21 illustrated in FIGS. 1 to 3.

  A packaging tool 20 shown in FIG. 5 has two packaging cushioning materials 1 shown in FIGS. 1 to 3 and a packaging box 21 made of cardboard or the like. And the opening side of the holding | maintenance part 2 of a pair of cushioning materials 1 for packing is mutually inserted and hold | maintained in the holding | maintenance part 2 so that the opening side of the holding | maintenance part 2 may mutually oppose, In this state, The pair of cushioning materials 1 for packing are housed together in the packing box 21.

  Here, since the outer opening portions 3b and 4b of the flange portions 3 and 4 are bent outward from the bent portions 3a and 4a, the two outer opening portions facing each other 3b, 3b and 4b, The distance between the ends of 4b is larger than the distance between the opposing inner walls of the packing box 21. Therefore, when the packing cushioning material 1 is stored in the packing box 21, the outer opening portions 3 b, 3 b and 4 b, 4 b facing each other are inserted into the packing box 21 while shrinking. After insertion, the outer opening portions 3b and 4b spread outward due to the elasticity of the bent portions 3a and 4a, so that the outer opening portions 3b and 4b are almost in close contact with the inner wall of the packaging box 21. Thus, since the cushioning material 1 for packing can adjust the dimension at the time of accommodating in the packaging box 21, it can be easily inserted in the packaging box 21 in the state which hold | maintained the to-be-packaged item 22. FIG.

  And when the to-be-packaged item 22 is stored in the packing box 21 together with the packing cushioning material 1, since the flange portions 3 and 4 exist at the four outer portions around the holding portion 2, the holding portion 2 holds it. The to-be-packaged product 22 is in a state of being isolated by the flange portions 3 and 4 without directly contacting the inner wall of the packaging box 21. Therefore, the elasticity of the bent portions 3a and 4a of the flange portions 3 and 4 protects against vibrations and impacts during transportation and cargo handling.

  Moreover, the vertical height H1 from the top of the bent portions 3a, 4a of each flange portion 3, 4 to the end of the outer opening portions 3b, 4b is from the bottom 2a of the holding portion 2 to the top of the bent portions 3a, 4a. Since it is formed so as to be higher than the total height H 0, the bottom portion 2 a of the holding portion 2 is also lifted from the inner wall of the packaging box 21. For this reason, since the to-be-packaged object 22 does not touch the packing box 21 directly also in a longitudinal direction, it is protected from the vibration and impact at the time of conveyance, cargo handling, etc.

  Further, as described above, since the flanges 4 on the short side are inserted inside the both side ends of the flanges 3 on the long side, the cushioning material 1 for packing stored in the packing box 21 is long. The strength is high against the impact and compressive force from the side surface of the flange portion 3 on the side.

  Thus, if it is set as the structure accommodated in the packing box 21 in the state which hold | maintained the to-be-packaged object 22 with a pair of packing material 1 for packing, since the to-be-packaged object 22 does not touch the packing box 21 directly, it is high impact. It becomes possible to provide the holder 20 which has a buffering property.

  In the example of the packing tool 20 shown in FIG. 5, a pair of cushioning materials 1 are used. However, depending on the size of the article 22 to be packed, for example, as shown in FIG. Using the packing cushioning material 1, the entire packaged item 22 is stored in the holding part 2 of the packing cushioning material 1, and then the packaged item 22 is covered with the cushioning material 23 and the upper lid of the packaging box 21 and packed. It is also possible to do.

  Also in this case, the object to be packed 22 is not in direct contact with the inner wall of the packing box 21, and in particular, the front, rear, left and right are sufficiently separated from the packing box 21 by the flange portions 2, 3. Is protected from vibration and shock.

  In addition, as shown in FIG. 7, the object to be packed 22 has a step portion 22 a near the center in the longitudinal direction, and this step portion 22 a has a width or diameter larger than the end portion of the object to be packed 22. In this case, since the stepped portion 22a of the article to be packed 22 comes into contact with the bent portions 3a and 4a, the impact in the longitudinal direction can be more effectively reduced.

Embodiment 2. FIG.
FIG. 8 is a perspective view of the cushioning material for packing in the second embodiment of the present invention as viewed from the back side, and the same reference numerals are given to the components corresponding to those in the first embodiment shown in FIGS.

  In the first embodiment, the flange portions 3 and 4 of the cushioning material 1 for packing all have the same vertical height H1 from the apex of the bent portions 3a and 4a to the end of the outer opening portions 3b and 4b. Therefore, when the packing cushioning material 1 is stored in the packing box 21, the ends of the outer opening portions 3 b and 4 b are all in contact with the inner wall of the packing box 21 at one time.

  On the other hand, in the second embodiment, the vertical heights H2 and H3 from the apexes of the bent portions 3a and 4b of the flange portions 3 and 4 to the ends of the outer opening portions 3b and 4b are the same as those of the holding portion 2. Although it is formed so as to be higher than the height H0 from the bottom 2a to the apex of the bent portions 3a, 4a, the heights H2, H3 are in two levels, each flange portion 3 on the long side. The vertical height H3 from the apex of the bent portion 3a to the end of the outer opening 3b is the vertical height from the apex of the bent portion 4a of each flange 4 on the short side to the end of the outer opening 4b. It is formed to be higher than the height H2. That is, it is formed so as to satisfy the relationship of H3> H2> H0.

  In the case of this configuration, when the article to be packed is held by the packing cushioning material 1 and stored in a packing box (not shown), the bottom portion 2a of the holding portion 2 rises from the inner wall of the packing box and the vertical height of the flange portions 3 and 4 increases. Since there are two stages of H3 and H2, a two-stage shock absorbing action can be obtained. That is, when the article to be packed held by the holding unit 2 is relatively light, the shock can be absorbed in two stages when the shock is received in the longitudinal direction. Therefore, the packaged item can be stored more safely.

  In the second embodiment, H3> H2> H0, but the vertical height H2 from the apex of the bent portion 4a of each flange portion 4 on the short side to the end of the outer opening 4b is long. It may be formed so as to be higher than the vertical height H3 from the apex of the bent portion 3a of each flange portion 3 on the side to the end of the outer opening 3b, that is, H2> H3> H0. It is possible and the same effect is obtained.

  Other configurations and operational effects are the same as those of the first embodiment, and thus detailed description thereof is omitted here.

Embodiment 3 FIG.
FIG. 9 is a plan view of the cushioning material for packing in the third embodiment of the present invention as viewed from the front side, and the same reference numerals are given to the components corresponding to those in the first embodiment shown in FIGS.

  In the first embodiment, the case where each flange portion 4 located on the short side of the bottom portion 2a enters inside the both side ends of each flange portion 3 located on the long side side of the bottom portion 2a, In this Embodiment 3, the adjacent flange part 4 enters inside the one end side of each flange part 3 located in the long side of the bottom part 2a, and furthermore, each flange part 4 located in the short side of the bottom part 2a. The adjacent flange portion 3 is formed so as to sequentially enter the inside of one side end of each flange portion so that the adjacent flange portion 3 enters inside from one end side.

  In the case of this configuration, compared to the configuration of the first embodiment, it is possible to provide an impact buffering property against an impact and a compressive force from a side surface in any direction of front, rear, left and right. There is an advantage that the deviation in direction can be reduced.

  Other configurations and operational effects are the same as those of the first embodiment, and thus detailed description thereof is omitted here.

Embodiment 4 FIG.
In each of the first to third embodiments described above, the case where the bottom portion 2a of the holding portion 2 of the cushioning material 1 for packing is rectangular has been described. However, the bottom portion 2a may be square depending on the shape of the end face of the object to be packed. In addition, when packing an object having a circular end surface, the bottom 2a of the holding part 2 may be circular as shown in FIG. In addition, when the entire packaged object has a cylindrical shape and a rotating shaft or the like protrudes from both ends in the axial direction, a shaft mounting hole is formed in the bottom 2a of the holding unit 2 as shown in FIG. It can also be set as the structure which provided the cut | interruption 2g around 2f and the hole 2f. If it does in this way, a to-be-packaged item can be hold | maintained more reliably by the holding | maintenance part 2. FIG. Furthermore, as shown in FIG. 12, the bottom 2a of the holding part 2 may have a polygonal shape such as a hexagonal shape, depending on the shape of the end face of the packaged object.

It is a perspective view which shows the buffer material for packing in Embodiment 1 of this invention. It is the perspective view which looked at the buffer material for packing from the back side. It is the top view which looked at the cushioning material for packing from the front side. It is a top view which shows the state which expand | deployed the buffer material for packing and made it into one board. It is front sectional drawing which shows the state which packed the to-be-packaged object using the packing tool which consists of the cushioning material for packing shown in FIG. 1 thru | or 3, and the packaging box made from corrugated cardboard. It is front sectional drawing which shows the state which packed the to-be-packaged object of another shape using the packing tool which consists of the cushioning material for packing shown in FIG. 1 thru | or FIG. 3, and the packaging box made from corrugated cardboard. It is front sectional drawing which shows the state which packed the to-be-packaged object of another shape using the packing tool which consists of the cushioning material for packing shown in FIG. 1 thru | or FIG. 3, and the packaging box made from corrugated cardboard. It is the perspective view which looked at the buffer material for packing in Embodiment 2 of this invention from the back side. It is the top view which looked at the buffer material for packing in Embodiment 3 of this invention from the front side. It is the top view which looked at the buffer material for packing in Embodiment 4 of this invention from the front side. It is a top view which shows the modification of the buffer material for packing in Embodiment 4 of this invention. It is a top view which shows the further another modification of the buffer material for packing in Embodiment 4 of this invention.

Explanation of symbols

1 cushioning material for packing, 2 holding part, 2a bottom part, 2b, 2c wall part,
3, 4 flange part, 3a, 4a bent part, 3b, 4b outer opening part, 20 packing tool,
21 Packing box, 22 Packaged items, H0 Height from the bottom of the holding part to the apex of the bent part,
H1, H2, H3 Vertical height from the apex of the bent part of the flange part to the end of the outer opening part.

Claims (6)

A cushioning material for packing used to absorb vibrations and shocks to the packed object when packing the packed object in a packing box,
A box-shaped holding part that is integrally formed by bending using paperboard as a raw material, and has an opening at one end that holds the packaged object, and a flange part that extends outward from the opening end side of the holding part And each flange portion has a bent portion bent outward in a substantially inverted U shape from the holding portion, and a flat plate-shaped outer opening portion extended from the bent portion. Cushioning material. The cushioning material for packing according to claim 1, wherein the outer opening portion of each flange portion is bent outward from the bent portion. The vertical height from the apex of the bent portion of each flange portion to the end of the outer opening portion is the same height and is higher than the height from the bottom surface of the holding portion to the apex of the bent portion. The packing cushioning material according to claim 1 or 2, wherein the packing cushioning material is formed as described above. The vertical height from the apex of the bent portion of each flange portion to the end of the outer opening portion has two levels of height, and any height is from the bottom surface of the holding portion to the apex of the bent portion. It is formed so that it may become higher than height, The cushioning material for packing of Claim 1 or Claim 2 characterized by the above-mentioned. 5. The packaging according to claim 1, wherein the flange portions are formed so that adjacent flange portions sequentially enter inside one end of each flange portion. Cushioning material. A state in which a pair of the cushioning materials for packing according to any one of claims 1 to 5 is provided, and each end portion of the packed object is held by the holding portions of the cushioning materials for packing. And a packing box for storing them.

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