JP2013071755A - Shock-absorbing pad for packaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a weak section of a product (5) from being damaged by a shock-absorbing pad (10) for packaging which is formed by putting a corrugated fiberboard blank in a gap between a side face (2g) of a bottom tray (2) and a side plate (5a) of the product (5) being an object to be packaged and folding the corrugated fiberboard blank so as to protect the product.SOLUTION: The shock-absorbing pad (10) for packaging is formed with a first shock-absorbing section (B1) corresponding to a first area (A1) formed in the predetermined width of an edge of the side plate (5a) of the product (5) and a second shock-absorbing section (B2) corresponding to a second area (A2) having a strength lower than that of the first area (A1). The first shock-absorbing section (B1) is configured in a laminate structure composed of a plurality of corrugated fiberboards so as to primarily receive a load at cargo handling or cargo transportation. The second shock-absorbing section (B2) is configured so as to allow movement of the side plate (5a) of the product (5).

Description

  The present invention relates to a cushioning pad for packaging formed by folding a cardboard blank.

  Conventionally, a cushion pad for packaging formed by bending a cardboard blank has been used when packaging various products (packages). For example, the packaging buffer pad is used together with a packaging exterior material such as a bottom tray or a top tray when packaging a rectangular parallelepiped product such as an indoor unit of a commercial air conditioner (for example, Patent Document 1). reference).

  This cushion pad is placed on the bottom of the packaging exterior material or the side edge of the top surface (at least two opposite sides of the bottom or top surface) so that the side plate of the product does not contact the side surface of the packaging exterior material. It is done. In this way, when the product is packaged, the gap between the side surface of the packaging exterior material and the side plate of the product can be maintained by the buffer pad. It is possible to prevent an impact from being applied.

JP 2000-103462 A

  By the way, when the casing has a structure in which a thin metal plate is joined at the ridge, as in an indoor unit of a commercial air conditioner, a small range of the joint at the ridge of the casing (for example, about 20 mm around the ridge) Only in the range, the strength is increased, but in the portion away from the vicinity of the ridge (for example, the range exceeding 20 mm described above), the strength of the casing is decreased. For this reason, if the packaging buffer pad comes into contact with a weak product strength part due to impact during cargo handling or vibration during transportation, the casing side plate may be deformed or damaged.

  The present invention was devised in view of such problems, and its purpose is to increase the strength of the product by using a cushioning pad for packaging that protects the product by placing it on the bottom surface of the packaging exterior material or the side edge of the top surface. It is to prevent the weak part from being damaged.

  The first invention is formed by bending a corrugated cardboard blank (20), the side surface of a packaging exterior material (2, 3) such as a bottom tray (2) and a top tray (3), and a packaged object (5 ) Is assumed to be a cushioning pad for packaging mounted in the gap between the side plate (5a).

  And this buffer pad for packaging is the 1st buffer which is a base formed in the range corresponding to the 1st field (A1) of the side board (5a) formed in the predetermined width of the edge of a packaged article (5). The tip formed in a range corresponding to the second region (A2) adjacent to the first region (A1) of the side plate (5a) at a lower strength than the edge of the part (B1) and the packaged item (5) A second buffer portion (B2), and the first buffer portion (B1) is configured in a plurality of cardboard laminated structures so as to mainly receive loads during cargo handling and transportation. The buffer part (B2) is configured to allow movement of the side plate (5a) of the packaged object (5), and the first buffer part (B1) includes the side plate (5a) of the packaged object (5). A plurality of cutouts (24) are formed on the contact surface with respect to.

  In the first invention, the article to be packaged (5) is packed with the packing exterior material (2, 3) together with the cushioning pad for packing. At this time, the cushioning pad for packaging is positioned so that the first buffer portion (B1) corresponds to the first region (A1) where the strength of the side plate (5a) of the article to be packaged (5) is relatively strong. The second buffer portion (B2) is positioned corresponding to the second region (A2) where the strength of the side plate (5a) of the object (5) is relatively weak. And if impact or vibration is applied to the packaging exterior material (2, 3) while handling or transporting the packaged item (5), the load is received by the first buffer (B1). Become. On the other hand, the second buffer part (B2) is configured so that the packaged article (5) can be moved even when an impact is applied to the packaging exterior material (2, 3) during handling or transportation. It is possible to prevent an impact load from being applied to the second region (A2) where the strength of the side plate (5a) of the object (5) is weak.

  According to a second invention, in the first invention, there is provided a guide flap (16) extending along the package (5) so as to cover the first buffer part (B1) and the second buffer part (B2). The guide flap (16) is separated from the side surface of the package (5) from the base side end of the first buffer (B1) toward the tip end of the second buffer (B2). It is characterized by a slope.

  In this second invention, the guide flap is used when packing the package (5) with the cushioning pad for packing attached to the bottom surface of the packaging exterior material (2, 3) or the side edge of the top surface first. The package (5) can be placed along the slope of (16).

  According to a third invention, in the first or second invention, a convex portion (24a) formed of a bent piece of corrugated cardboard so as to fasten the plurality of corrugated cardboards laminated with the first buffer portion (B1). The blank (20) is formed with the projection (24a) and the fitting (24b).

  In the third aspect of the invention, a plurality of sheets constituting the first buffer portion (B1) are formed by engaging the convex portion (24a) formed of a bent piece of corrugated cardboard with the concave portion (24b) of the blank (20). The cardboard is held in a stacked state.

  According to the present invention, the first buffer part (B1) corresponding to the first region (A1) where the strength of the side plate (5a) of the article to be packaged (5) is relatively strong, and the strength of the side plate (5a) A second buffer part (B2) corresponding to the relatively weak second region (A2) is provided on the cushioning pad for packaging, and the first buffer part (B1) mainly receives a load during handling and transportation, 2 The cushioning part (B2) allows the packaged article (5) to move even if impact is applied to the packaging exterior material (2, 3) during cargo handling or transportation, so the packaging exterior material (2, 3) Even if an impact is applied, a large impact load is not applied to the second region (A2) where the strength of the side plate (5a) of the package (5) is weak. Thus, according to the present invention, since the second region (A2) where the strength of the side plate (5a) of the article to be packaged (5) is weak can be effectively protected, the side plate (5a) of the article to be packaged (5) Can be prevented from being deformed or damaged. In addition, the first buffer portion (B1) is formed with a plurality of notches (24) on the contact surface of the package (5) with respect to the side plate (5a) so that the strength of the first buffer portion (B1) is increased. Therefore, the strength suitable for receiving the first area (A1) can be set.

  According to the second aspect of the invention, when packing the article to be packaged (5) with the packaging buffer pad attached to the bottom edge of the packaging exterior material (2, 3) or the side edge of the top surface first, Since the article to be packaged (5) can be guided along the inclination of the guide flap (16), the packaging operation can be easily performed. Further, by providing the guide flap (16), it is possible to prevent the packaged object (5) from getting on the packaging buffer pad and being displaced.

  According to the third aspect of the invention, the convex portion (24a) formed of the corrugated cardboard bent pieces is fastened to the concave portion (20) of the blank (20) so as to fasten the plurality of corrugated cardboards laminated with the first buffer portion (B1). By being fitted to 24b), a plurality of cardboards constituting the first buffer portion (B1) can be held in a stacked state. Therefore, the first buffer portion (B1) of the packaging buffer pad can be realized with a simple configuration.

FIG. 1 is a perspective view showing a state in which an indoor unit of an air conditioner is packed using a packaging buffer pad according to the present invention. FIG. 2 is a partial cross-sectional view showing a state in which the indoor unit is packed with a packaging exterior material. FIG. 3 is a partial perspective view of the packaging buffer pad. 4A is a plan view of the indoor unit, and FIG. 4B is a side view of the indoor unit. FIG. 5 is a plan view of a blank for forming a packaging buffer pad. FIG. 6 is a perspective view showing a developed shape and an assembled state of the bottom tray. FIG. 7 is a perspective view showing a state in which the packaging buffer pad is attached to the bottom tray.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. This embodiment is an embodiment showing an example in which an indoor unit of an air conditioner that is an object to be packaged is packed with packing exterior materials (a bottom tray and a top tray).

  FIG. 1 is a perspective view showing a state in which the indoor unit (5) is packed using a bottom tray (2) and a top tray (3) which are packing exterior materials and a cushioning pad (10) for packaging according to the present invention, FIG. 2 is a partially enlarged cross-sectional view showing a state in which the indoor unit (5) is packed with a packaging exterior material (2, 3). FIG. 3 is a partial perspective view of the packaging buffer pad (10). ) Is a plan view of the indoor unit (5), and FIG. 4B is a side view of the indoor unit (5).

  The indoor unit (5) has a rectangular box-shaped casing (6) as viewed from above as shown in FIG. Inside the casing (6), an indoor fan (7) and an indoor heat exchanger (not shown) are accommodated. An air inlet (8a) and an air outlet (8b) are formed on the top surface of the casing (6) of the indoor unit (5). The air inlet (8a) is configured by a circular opening formed at a position corresponding to the indoor fan (7), and the air outlet (8b) is configured by an elongated opening along the longitudinal direction of the casing (6). Yes. The casing (6) is configured by joining thin metal plate materials at the ridges.

  The indoor unit (5) is connected to an outdoor unit (not shown) installed outside by a refrigerant pipe so as to constitute a refrigerant circuit. While the indoor air is sucked from the air inlet (8a), when the refrigerant circulates in the refrigerant circuit, the indoor air is passed through the indoor heat exchanger by the indoor fan (7) to cool or heat the indoor air. Then, this air is supplied into the room through the air outlet (8b) to cool or heat the room.

  As shown in FIGS. 1 and 2, the cushioning pad (10) for packaging includes a bottom tray (2) and a top tray at the bottom edge of the bottom tray (2) and the side edge of the top surface of the top tray (3). It is attached to the gap between the inside of the side surface of (3) (side surface of the bottom tray 2: 2 g) and the side plate (5a) of the indoor unit (5). Specifically, the packaging buffer pad (10) is assembled to the bottom tray (2). The bottom tray (2) is a rectangular tray formed of cardboard. And the said buffer pad (10) for packaging is united with the bottom tray (2) in the state assembled | attached and hold | maintained at the edge part of the short side of a bottom tray (2).

  The packaging buffer pad (10) is also assembled on the inner side of the top tray (3). The top tray (3) also has the same long and short side dimensions as the bottom tray (2). The cushioning pad (10) for packaging on the top plate side is assembled to the edge on the short side of the top tray (3). In the present embodiment, only the packaging buffer pad (10) on the bottom plate side will be described, and the description of the packaging buffer pad (10) on the top plate side will be omitted. The packaging buffer pad (10) on the top plate side and the packaging buffer pad (10) on the bottom plate side are slightly different in shape, but the basic configuration is almost the same. The packaging buffer pad (10) may be the same on the bottom plate side and the top plate side.

  The packaging buffer pad (10) is formed by bending a blank (20) made of cardboard (see FIG. 5). As shown in FIGS. 1 to 3, the packing pad (10) for packaging is formed in a substantially square cylindrical shape from the bottom plate (11), the back plate (12), the top plate (13), and the front plate (14). In addition, a side plate (15) that closes both ends of the cylinder is provided (the front plate (14) and the side plate (15) are omitted in FIG. 3).

  In the indoor unit (5), a region having a predetermined width (for example, 20 mm from the top and bottom ridges of the casing (6)) of the upper and lower edges of the side plate (5a) is defined as a first region (A1). ) If the region excluding the first region (A1) is the second region (A2), the first region (A1) is a portion where the metal plate members are joined together at the ridge portion of the casing (6) or a portion in the vicinity thereof. Therefore, since the second region (A2) adjacent to the first region (A1) is a region away from the joint portion of the ridge portion, the strength is lower than that of the first region (A1). It is.

  And the said buffer pad for packaging (10) is the 1st buffer part (B1) which is a base formed in the range corresponding to the 1st area | region (A1) of the side plate (5a) of the said indoor unit (5), A second buffer portion (B2) that is a tip portion formed in a range corresponding to the second region (A2) of the side plate (5a) of the indoor unit (5).

  The first buffer portion (B1) has a laminated structure in which a plurality of cardboards are superposed and have high strength so as to mainly receive a load during handling or transportation. On the other hand, the second buffer portion (B2) is configured as a low-strength portion so as to allow movement of the side plate (5a) of the indoor unit (5). In the first buffer part (B1), a plurality of notches (24) are formed on the contact surface of the indoor unit (5) with respect to the side plate (5a).

  The packaging buffer pad (10) has a guide flap (16) that covers the first buffer part (B1) and the second buffer part (B2) and extends along the indoor unit (5). ing. The guide flap (16) is separated from the side plate (5a) of the indoor unit (5) from the base side end of the first buffer (B1) toward the tip end of the second buffer (B2). It is inclined to. Further, the packaging buffer pad (10) employs a configuration in which a plurality of stacked cardboards in the first buffer portion (B1) are fastened. Although the specific structure will be described later, the blank (20) is formed with a convex part (24a) formed of a bent piece of corrugated cardboard and a concave part (24b) into which the convex part (24a) is fitted. Yes.

  Next, the configuration of the blank (20) for forming the packaging buffer pad (10) will be described.

  FIG. 5 is a plan view of the blank (20) for forming the packaging buffer pad (10) (development of the packaging buffer pad (10)). The blank (20) is formed of a single horizontally long cardboard, and in order from the bottom of FIG. 5, the back plate (26), the top plate (27), the front plate (28) (guide flap (16) ) And a bottom plate part (25). The blank (20) includes a back plate (26) and a top plate (27), a top plate (27) and a front plate (28), a front plate (28) and a bottom plate. Bending ruled lines (L1, L2, L3) are formed between the portions (25), respectively.

  The corrugated cardboard of the blank (20) is a double-sided cardboard in which cardboard is attached to both sides of the corrugated sheet. The direction (P) of the corrugation or ridgeline of the corrugated plate (20a) of the blank (20) is set in a direction perpendicular to each of the folding ruled lines (L1, L2, L3), and the packaging exterior material (2, 3 The bottom plate portion (25) and the top plate portion (27) are not easily deformed with respect to the impact load applied to the).

  The bottom plate part (25) is composed of a laminated structure of three layers from a lower first layer bottom plate (25a), an upper second layer bottom plate (25b), and an intermediate third layer bottom plate (25c). Has been. Between the second layer bottom plate (25b) and the third layer bottom plate (25c), bent portions (25d) are provided at both end portions. Further, the second layer bottom plate (25b) and the third layer bottom plate (25c) are separated between the bent portions (25d) on the left and right sides of the second layer bottom plate (25b) and the third layer bottom plate (25c). Yes. By the bent portion (25d), the second layer bottom plate (25b) and the third layer bottom plate (25c) are configured to overlap each other in close contact with each other.

  Between the first layer bottom plate (25a) and the second layer bottom plate (25b), bent portions (25e) are provided at both end portions. Further, between the bent portions (25e) on the left and right sides of the first layer bottom plate (25a) and the second layer bottom plate (25b), the first layer bottom plate (25a) and the second layer bottom plate (25b) are cut lines (25f). ). With the above configuration, the second layer bottom plate (25b) and the third layer bottom plate (25c), which are overlapped with each other, are configured to overlap each other with the third layer bottom plate (25c) in close contact with the first layer bottom plate (25a). (See FIG. 2).

  By overlapping the first layer bottom plate (25a), the second layer bottom plate (25b) and the third layer bottom plate (25c), the first corresponding to the first region (A1) at the edge of the indoor unit (5). A buffer (B1) is configured. As described above, the first buffer portion (B1) has a laminated structure of a plurality of cardboards, and is configured to mainly receive a load at the time of cargo handling or transportation.

  The first layer bottom plate (25a), the second layer bottom plate (25b), and the third layer bottom plate (25c) are formed with notches (24) whose positions are aligned with each other. This notch (24) is formed so as to be located on the contact surface of the indoor unit (5) with respect to the side plate (5a).

  Further, a bent piece (convex portion (24a)) is formed on the first layer bottom plate (25a). This bent piece is formed as a part of two notches (24) out of nine notches (24) in this embodiment. The two cutouts (24) are configured such that the size of the cutout (24) is the same as that of the other cutouts (24) by folding the folded piece and raising it. When the bent piece is raised, the bent piece is engaged with the corresponding notch (24) of the first layer bottom plate (25a) and the second layer bottom plate (25b). That is, the bent piece of the first layer bottom plate (25a) becomes the convex portion (24a), and the notch (24) of the second layer bottom plate (25b) and the third layer bottom plate (25c) becomes the concave portion (24b). The convex portion (24a) is fitted into the concave portion (24b), and the three-layer bottom plates (25a, 25b, 25c) are held in an overlapped state.

  Side plate component pieces (30a, 30b, 30c) are formed at both ends of the back plate portion (26), the front plate portion (28), and the first layer bottom plate (25a). Specifically, side flaps (30a, 30b) are formed on the back plate portion (26) and the front plate portion (28), respectively, and a main flap (30c) is formed on the first layer bottom plate (25a). ing. Then, the back plate (26), top plate (27), front plate (28) and bottom plate (25) are folded at the folding ruled lines (L1, L2, L3) to wrap the cushioning pad (10) for packaging. The side flaps (30a, 30b) of the back plate portion (26) and the front plate portion (28) are bent inward, and the main flap (35c) of the first layer bottom plate (25a) is further bent. An insertion piece (30d) is formed at the tip of the main flap (35c), and this insertion piece (30d) is formed between the top plate portion (27) and the side flaps (30a, 30b). Are inserted into the rectangular cylindrical cushioning pad (10), and both ends thereof are closed by side plate portions (30) each including three side plate component pieces (30a, 30b, 30c).

  Each part of the blank (20) is folded and assembled, and thereby the cushioning pad (10) for packaging of this embodiment is formed.

  On the other hand, the bottom tray (2) has a rectangular bottom plate (2a) and a short side connected to the short side edge of the bottom plate (2a) as shown in FIG. It has a side plate (2b) and a long side plate (2c) connected to the long side edge of the bottom plate (2a), and is made of corrugated cardboard like the packaging buffer pad (10). ing.

  This bottom tray (2) is constructed by bending the short side plate (2b) from the bottom plate (2a) and raising the flaps (2d) at both ends of the short side edge (2b). By inserting the engagement protrusion (2e) at the tip of the long side plate (2c) into the engagement recess (2f) of the bottom plate (2a). Assembled.

  The packaging buffer pad (10) assembled as described above is attached to the bottom tray (2) assembled in FIG. 6 as shown in FIG. 7, and the outdoor unit (5) is packed.

  At this time, as shown in FIG. 2, the packaging buffer pad (10) includes a first region (A1) in which the first buffer (B1) has a high strength of the casing (6) of the indoor unit (5). ) And receives the load during handling and transportation. Further, only the guide flap (16) is provided in the second buffer portion (B2) located corresponding to the second region (A2) where the strength of the casing (6) is low. Thus, the first buffer part (B1) regulates the movement of the first area (A1) of the indoor unit (5), while the second buffer part (B2) is the second area (A2) of the indoor unit (5). ) Is not restricted.

  In this embodiment, when a load is applied to the packaging exterior material (2, 3) when handling or transporting the indoor unit (5), the load is applied from the first buffer portion (B1) to the side plate (5a). Although it is transmitted to the first region (A1), the first region (A1) has high strength, so that deformation can be suppressed. On the other hand, since the 2nd buffer part (B2) is constituted so that movement of an indoor unit (5) is permitted, in the 2nd field (A2) where the intensity of the side plate (1a) of indoor unit (5) is weak Big power is not applied.

  Further, in this embodiment, when packing the indoor unit (5) with the packaging buffer pad (10) first attached to the side edge of the bottom surface or top surface of the packaging exterior material (2, 3), The indoor unit (5) can be inserted along the slope of the guide flap (16).

-Effect of the embodiment-
According to this embodiment, the first buffer portion (B1) positioned corresponding to the first region (A1) where the strength of the side plate (5a) of the indoor unit (5) is relatively strong, and the side plate (5a) The second buffer part (B2) located corresponding to the second area (A2), which is relatively weak in strength, is provided in the cushioning pad (10) for packaging, and the first buffer part (B1) is used for cargo handling and transportation. While receiving the load of time, the second buffer part (B2) allows the indoor unit (5) to move even if the packaging exterior materials (2, 3) are subjected to vibrations or shocks during loading or transportation. A large impact load is not applied to the second region (A2). Thus, according to this embodiment, since the 2nd field (A2) where the intensity of the side plate (5a) of the indoor unit (5) is weak can be effectively protected, the side plate (5a) of the indoor unit (5) It becomes possible to prevent deformation and damage.

  In addition, the first buffer portion (B1) is provided with a plurality of notches (24) on the contact surface with the side plate (5a) of the indoor unit (5), thereby increasing the strength of the first buffer portion (B1). Since it can be adjusted, the strength suitable for receiving the first area (A1) can be set.

  Moreover, according to this embodiment, when packing the indoor unit (5) with the cushioning pad (10) for packaging attached to the bottom surface of the packaging exterior material (2, 3) or the side edge of the top surface first. Moreover, since the indoor unit (5) can be put along the inclination of the guide flap (16), the packaging operation can be easily performed. Further, by providing the guide flap (16), it is possible to prevent the indoor unit (5) from getting on the packaging buffer pad (10) and being displaced.

  Moreover, according to this embodiment, the convex part (24a) comprised by the bent piece of the corrugated cardboard is made into the recessed part (20) of a blank (20) so that the several corrugated board laminated | stacked in the 1st buffer part (B1) may be fastened. By being fitted to 24b), a plurality of cardboards constituting the first buffer portion (B1) can be held in a stacked state. Therefore, the 1st buffer part (B1) of the buffer pad for packaging (10) is realizable with a simple structure.

<< Other Embodiments >>
About the said embodiment, it is good also as the following structures.

  For example, in the above embodiment, the first buffer portion (B1) has a three-layer structure of cardboard, but the number of stacked layers may be changed as appropriate. Further, the number and dimensions of the notches (24) may be appropriately changed.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.

  As described above, the present invention is useful for a cushioning pad for packaging formed by bending a cardboard blank.

2 Bottom tray (packaging exterior)
3 Top tray (packaging exterior)
5 Indoor units (packaged items)
5a Side plate
10 Packing pad for packaging
16 Guide flap
20 blank
24 cutout
24a Convex
24b recess
A1 1st area
A2 Second area
B1 first buffer
B2 Second buffer

Claims (3)

A cushioning pad for packaging that is formed by bending a corrugated cardboard blank (20) and is mounted in the gap between the side surface of the packaging outer packaging (2, 3) and the side plate (5a) of the article to be packaged (5) Because
A first buffer portion (B1) which is a base portion formed in a range corresponding to the first region (A1) of the side plate (5a) formed at a predetermined width of an edge portion of the article to be packaged (5); The second buffer portion (B2) which is a tip portion formed in a range corresponding to the second region (A2) adjacent to the first region (A1) of the side plate (5a) with lower strength than the edge of the object (5). )
The first buffer portion (B1) is configured in a plurality of cardboard laminated structures so as to mainly receive loads during cargo handling and transportation, while the second buffer portion (B2) is configured of the package (5). Configured to allow movement of the side plate (5a),
A packaging buffer pad, wherein the first buffer portion (B1) has a plurality of notches (24) formed on a contact surface of the packaged article (5) with respect to the side plate (5a). In claim 1,
The guide flap (16) extends along the package (5) so as to cover the first buffer portion (B1) and the second buffer portion (B2), and the guide flap (16) For packaging, characterized by being inclined away from the side surface of the article to be packaged (5) from the base side end of the buffer part (B1) toward the tip side end of the second buffer part (B2) Buffer pad. In claim 1 or 2,
A convex part (24a) formed of a bent piece of corrugated cardboard and a concave part (24b) into which the convex part (24a) fits so as to fasten a plurality of laminated corrugated cardboards of the first buffer part (B1) Is formed in the blank (20).

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