JP2013071754A - 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: A leg portion (21) extending in a direction along the side plate (5a) of the product (5) is provided on the shock-absorbing pad (10) for packaging. The leg portion (21) is provided 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) are formed. The first shock-absorbing section (B1) is configured so as to primarily receive a load at cargo handling or cargo transportation. On the other hand, the second shock-absorbing section (B2) is provided with a movement permitting portion (23) for permitting movement of the side plate (5a) with a smaller load.

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 folding a corrugated cardboard blank (20), and packaging exterior such as a bottom tray (2) and a top tray (3) at an end in the height direction of an article to be packaged (5). It is assumed that the cushioning pad for packaging is installed in the gap between the side surface of the material (2, 3) and the side plate (5a) of the package (5).

  The packaging buffer pad is formed by bending the folded piece (22) formed on the blank (20) in a direction perpendicular to the side plate (5a) of the packaged object (5). The leg (21) extends in the height direction, and the leg (21) is a first region (A1) of the side plate (5a) formed at a predetermined width of the edge of the package (5). ) Adjacent to the first buffer portion (B1) which is a base formed in a range corresponding to) and the first region (A1) of the side plate (5a) at a lower strength than the edge of the article (5) to be packaged A second buffer portion (B2) which is a tip portion formed in a range corresponding to the second region (A2), so that the first buffer portion (B1) mainly receives loads during cargo handling and transportation. On the other hand, the second buffer portion (B2) is provided with a movement allowance portion (23) that allows movement of the second region (A2) with a load smaller than the load. It is characterized by.

  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, since the second buffer part (B2) has the movement allowance part (23), the position of the side plate (5a) of the packaged article (5) even if an impact during cargo handling or vibration during transportation occurs. The change is possible, and the force applied to the second region (A2) where the strength of the side plate (5a) of the packaged object (5) is weak is reduced.

  According to a second invention, in the first invention, the inner end face of the first buffer portion (B1) on the packaged object (5) side comes into contact with the side plate (5a) of the packaged object (5) to be packaged. While receiving the impact load of (5), the inner end surface of the second buffer portion (B2) is configured to form a gap with the side plate (5a) of the package (5). It is said.

  In the second aspect of the invention, the first buffer portion (B1) contacts the first region (A1) of the side plate (5a) of the article to be packaged (5) and loads the packaging exterior material (2, 3) or transports it. Receive the load of time. In addition, the second buffer portion (B2) normally does not come into contact with the second region (A2) of the side plate (5a) of the article to be packaged (5), and the packing exterior material (2, 3) Since the package (5) can move even when a load during transportation is applied, it is possible to prevent an impact load from being applied to the second region (A2).

  According to a third aspect of the present invention, in the second aspect, the inner end surface of the second buffer portion (B2) extends from the distal end side end portion of the second buffer portion (B2) to the base side end portion of the first buffer portion (B1). It is characterized by inclining so that the clearance gap between the side plate (5a) of the packaged object (5) may become large.

  In the third aspect of the invention, since the inner end face of the second buffer portion (B2) is inclined, even if a load is applied to the packaging exterior materials (2, 3) during loading / unloading (5) ) Can move, and the closer to the first buffer part (B1), the larger the impact is, the more the movable amount is, the more impact is applied to the second area (A2) of the side plate (5a) of the package (5). It is possible to effectively prevent the load from being applied.

  According to a fourth invention, in the first invention, the inner end surface of the first buffer portion (B1) is formed as a contact surface that contacts the side plate (5a) of the article to be packaged (5) as a whole. On the other hand, the second buffer part (B2) is easier to deform than the first buffer part (B1) by forming a cut (24) that divides the inner end face of the second buffer part (B2) into a plurality of parts. It is characterized by being configured.

  In this 4th invention, since the notch (24) is formed in the inner side end surface of the 2nd buffer part (B2), even if the load at the time of cargo handling or transportation is added to a packing exterior material (2,3), 2 The cushioning part (B2) is deformed to move the article to be wrapped (5), and an impact load can be effectively prevented from being applied to the second region (A2).

  According to a fifth invention, in any one of the first to fourth inventions, the first buffer part (B1) and the second buffer part (B2) are covered and extended along the package (5). The guide flap (16) is to be packaged from the base side end of the first buffer part (B1) toward the tip side end of the second buffer part (B2). It is characterized by being inclined away from the side plate (5a) of (5).

  In the fifth aspect of the invention, the guide flap is used when packing the article to be packaged (5) in a state where the cushioning pad for packaging is first attached to the bottom surface of the packaging exterior material (2, 3) or the side edge of the top surface. The package (5) can be placed along the slope of (16).

  According to a sixth invention, in the fifth invention, the position of the tip end side end portion of the guide flap (16) substantially coincides with the position of the tip end end portion of the second buffer portion (B2). It is characterized by.

  In the sixth aspect of the invention, since the position of the inclined front end portion of the guide flap (16) and the front end side end portion of the second buffer portion (B2) are substantially matched, The width of the end side end of the portion (B2) can be increased.

  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 Since the buffer part (B2) is easily deformed with a weaker load than that, even if a load is applied to the packaging exterior material (2, 3), the side plate (5a) of the package (5) A large impact load is not applied to the second region (A2) having a low strength. 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.

  According to the second invention, the inner end surface of the first buffer portion (B1) on the packaged object (5) side comes into contact with the side plate (5a) of the packaged object (5) to be packaged (5). Since the inner end face of the second buffer part (B2) is formed with a gap between the side plate (5a) of the packaged object (5), the packaging exterior material (2, 3 ) Can be received by the first cushioning part (B1) of the cushioning pad for packaging, and the second area (A2) of the package (5) is the second cushioning pad for packaging. Can be protected with a buffer (B2).

  According to the third aspect of the invention, the inner end face of the first buffer portion (B1) on the packaged object (5) side comes into contact with the side plate (5a) of the packaged object (5) to be packaged (5). Since the inner end face of the second buffer part (B2) is inclined with the side plate (5a) of the article to be packaged (5a) Even if the material (2, 3) is loaded or unloaded during transportation, the package (5) can move, and the closer to the first shock absorber (B1), the larger the impact, the more movable amount is available. is there. Therefore, it is possible to effectively prevent the impact load from being applied to the second region (A2) of the packaged object (5).

  According to the fourth aspect of the present invention, the entire inner end face of the first buffer portion (B1) is integrally brought into contact with the side plate (5a) of the article to be packaged (5), and the impact load of the article to be packaged (5) is reduced. On the other hand, since the notch (24) is formed on the inner end face of the second buffer part (B2), even if a load is applied to the packaging exterior material (2, 3) during loading / unloading (5) ) Can be moved, and an impact load can be effectively prevented from being applied to the second region (A2).

  According to the fifth aspect of the present invention, when packing the packaged article (5) in a state where the cushioning pad for packaging is first attached to the bottom edge of the packaging exterior material (2, 3) or the side edge of the top surface, the guide Since the article to be packaged (5) can be guided along the inclination of the 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 sixth aspect of the present invention, the second buffer portion is formed by substantially matching the positions of the inclined tip end portion of the guide flap (16) and the tip end portion of the second buffer portion (B2). Since the width of the tip end side of (B2) can be increased, the strength of the leg (21) can be secured, and the packaging (5) is packed with the packaging exterior material (2, 3). The guide function can be maximized.

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 illustrating a state in which the indoor unit is packed with a packing 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. 6 (A), (B), and (C) are perspective views showing a state in which a blank is folded and a packaging buffer pad is assembled in stages. FIG. 7 is a perspective view showing a developed shape and an assembled state of the bottom tray. FIG. 8 is a perspective view showing a state in which the buffer pad for packaging is attached to the bottom tray. FIG. 9 is a partial cross-sectional view illustrating a state in which the indoor unit is packed with a packing exterior material using the packaging buffer pad according to the modification. FIGS. 10A and 10B are cross-sectional views of main parts of a packaging buffer pad according to another modification.

  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). That is, the packaging buffer pad (10) is attached to the end of the indoor unit (5) in the height direction. 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). The packaging buffer pad (10) is formed by folding the folded piece (22) formed on the blank (20), so that the side plate (5a) is oriented in a direction substantially perpendicular to the side plate (5a) of the indoor unit (5). Legs (21) extending in the height direction of 5a) are formed.

  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 leg part (21) of the said buffer pad (10) is a 1st buffer part (base part) formed in the range corresponding to the 1st area | region (A1) of the side plate (5a) of the said indoor unit (5). B1) and a second buffer portion (B2) which is a tip portion formed in a range corresponding to the second region (A2) of the side plate (5a) of the indoor unit (5). In this leg part (21), the 1st buffer part (B1) is comprised so that it may mainly receive the load at the time of cargo handling or transportation. On the other hand, the second buffer portion (B2) includes a movement allowance portion (23) that allows movement of the second region (A2) of the side plate (5a) with a load smaller than the above load.

  Specifically, the inner end surface (end surface on the indoor unit (5) side) of the first buffer portion (B1) of the leg portion (21) is in contact with the side plate of the indoor unit (5), and the indoor unit (5) It is configured to receive an impact load. On the other hand, the inner end surface of the second buffer portion (B2) is configured to form a gap with the side plate (5a) of the indoor unit (5).

  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. Furthermore, the inner end surface of the second buffer portion (B2) of the leg portion (21) is directed from the distal end side end portion of the second buffer portion (B2) toward the base side end portion of the first buffer portion (B1). The guide flap (16) is inclined in the opposite direction so that a gap between the machine (5) and the side plate (15) becomes large. And the position of the tip end side end portion (upper end portion in FIG. 2) of the guide flap (16) substantially coincides with the position of the tip end side end portion of the second buffer portion (B2).

  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 horizontally long cardboard, and in order from the bottom of FIG. 5, the bottom plate (25), the back plate (26), the top plate (27) and the front plate (28). (Guide flap (16)). In addition, the blank (20) includes a bottom plate (25) and a back plate (26), a back plate (26) and a top plate (27), a top plate (27) and a front plate. Bending ruled lines (L1, L2, L3) are formed between the portions (28), respectively. Note that the solid line portions of the folding ruled lines (L1, L2, L3) in the figure are cut lines.

  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 ) So that the bottom plate (25) and the top plate (27) are not easily deformed with respect to the load applied thereto.

  A folded portion (29) is formed at the tip of the front plate portion (28) to be overlapped with the bottom plate portion (25), and a folding ruled line (L4) is also formed between the front plate portion (28) and the folded portion (29). Is formed. A slit (25a) for fastening the folded portion (29) is formed in the center of the bottom plate portion (25). A holding piece (29a) to be inserted into the slit (25a) is formed in the folded portion (29). At the tip of the holding piece (29a), a tip locking portion (29b) that protrudes on both sides in the width direction is formed in order to prevent the holding piece (29a) from coming off from the slit (25a).

  Side plate component pieces (30a, 30b, 30c) are formed at both ends of the bottom plate portion (25), the back plate portion (26), and the front plate portion (28). This blank (20) is a cushioning pad for packaging by folding the bottom plate (25), back plate (26), top plate (27), and front plate (28) with folding ruled lines (L1, L2, L3) In the state where (10) is formed in a cylindrical shape, each side plate component piece (30a, 30b, 30c) is bent inward and meshed with each other, and the holding piece (29a) of the folded portion (29) is fixed to the bottom plate portion (29). 25) is inserted into the slit (25a). Both ends of the rectangular cylindrical cushioning pad (10) are closed by side plate portions (30) each including three side plate component pieces (30a, 30b, 30c).

  A folding piece (22) is formed in the top plate portion (27) of the blank (20) by cutting. The folding pieces (22) are formed on the left and right sides of the support portion (13a) of the top plate (13), and are substantially parallel to the side plate portion (30) at the folding ruled line (L5) with respect to the support portion (13a). It is bent as follows. The folded piece (22) constitutes the above-described leg portion (21) extending in the direction along the side plate (5a) of the indoor unit (5) which is the package.

  In order to fix the leg (21) with the packaging buffer pad (10) assembled from the blank (20), the blank (20) has a bottom plate (25) to a back plate (26). The holding plate portion (31) is formed by the cut line (L6) formed over and the bent ruled line (L7) formed by connecting ends of the cut line (L6). The holding plate part (31) and the leg part (21) are formed with slits (21a, 31a) that mesh with each other.

  6 (A) to 6 (C) are perspective views showing stepwise the state in which the blank (20) is folded to assemble the packaging buffer pad (10). First, as shown in FIG. 6 (A), the blank (20) is formed by bending the bottom plate portion (25), the back plate portion (26), the top plate portion (27), and the front plate portion (28). , L2, L3), the slit (21a) of the folding piece (22) constituting the leg portion (21) and the slit (31a) of the holding plate portion (31) are engaged with each other. Then, the side plate components (30a, 30b, 30c) are bent inward to close the side plate portion (30) in FIG. 6 (B), thereby forming the packaging buffer pad (10) shown in FIG. 6 (C).

  On the other hand, as shown in FIG. 7 showing the developed shape and the assembled state, 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). 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.

  Then, the packaging buffer pad (10) assembled in FIG. 6 is attached to the bottom tray (2) assembled in FIG. 7 as shown in FIG. 8, and the outdoor unit (5) is packed.

  At this time, as shown in FIG. 2, the cushioning pad (10) for packaging is such that the first buffering part (B1) of the leg part (21) has the strength of the casing (6) of the indoor unit (5). It is located corresponding to the high first area (A1) and mainly receives loads during loading and unloading. In addition, there is a gap between the second buffer portion (B2) positioned corresponding to the second region (A2) where the strength of the casing (6) is low, and the side plate (5a) of the indoor unit (5). The movement allowing portion (23) is formed by forming the gap. The edge on the side plate (15) side of the casing (6) in the second buffer portion (B2) of the leg portion (21) is formed in a tapered shape such that the gap becomes wider at the lower end portion, and the movement allowing portion (23 ) Is configured.

  In this embodiment, when vibration or impact is applied to the packaging exterior material (2, 3) when handling or transporting the indoor unit (5), the load is transferred from the first buffer portion (B1) to the side plate (5a ) Is transmitted to the first region (A1), but the first region (A1) has high strength, so that deformation can be suppressed. On the other hand, since the 2nd buffer part (B2) has a movement permissible part (23), it usually does not contact with the 2nd field (A2) of the side plate (5a) of the indoor unit (5), and packing Even if the exterior material (2, 3) is subjected to vibration or impact during transportation, the indoor unit (5) has room to move, so it is possible to prevent the impact load from being applied to the second area (A2).

  In this embodiment, the inner end face of the second buffer portion (B2) is inclined (tapered), and the closer to the first buffer portion (B1), the larger the impact is, the more movable amount is available. Therefore, it is possible to effectively prevent the impact load from being applied to the second region (A2).

  Furthermore, in this embodiment, when packing the indoor unit (5) in a state where the cushioning pad for packaging (10) is first attached to the bottom edge of the packaging exterior material (2, 3) or the side edge of the top surface, The indoor unit (5) can be inserted along the slope of the guide flap (16).

  Further, since the tip end side end portion of the guide flap (16) and the tip end side end portion of the second buffer portion (B2) are substantially matched, the second buffer portion (B2) It is possible to increase the width of the end portion on the front end side and to prevent the leg portion (21) from becoming weak.

-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 portion (B2) located corresponding to the second region (A2), which is relatively weak, is provided on the cushioning pad (10) for packaging, and is mainly used for cargo handling at the first buffer portion (B1). While receiving the load during transportation, the second buffer part (B2) allows the side plate (5a) to move with a weaker load, so even if an impact is applied to the packaging exterior materials (2, 3), A large impact load is not applied to the second region (A2) where the strength of the side plate (5a) of the indoor unit (5) is weak. 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.

  According to the present embodiment, the inner end surface of the first buffer portion (B1) on the indoor unit (5) side is in contact with the side plate (5a) of the indoor unit (5), so that the impact load of the indoor unit (5) is reached. On the other hand, the inner end face of the second buffer part (B2) is inclined with the side plate (5a) of the indoor unit (5) so that a slanted gap is formed in the first buffer part (B1). Since the closer to the place where the impact is larger, the more the movable amount can be provided, it is possible to effectively prevent the impact load from being applied to the second region (A2) of the indoor unit (5).

  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, Since the indoor unit (5) can be inserted 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.

  Further, the tip end side of the second buffer portion (B2) is made substantially coincident with the position of the tip end side end portion of the guide flap (16) and the tip end side end portion of the second buffer portion (B2). Since the width of the door can be increased, the strength of the legs (21) can be prevented from being lowered, and the guide function when putting the packaging exterior materials (2, 3) into the indoor unit (5) is maximized. be able to.

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

  For example, in the above embodiment, the movement allowing portion (23) is formed in the leg portion (21) by forming a gap between the second buffer portion (B2) and the indoor unit (5). The configuration of the part (21) may be changed. For example, as shown in FIG. 9, the inner end surface of the first buffer portion (B1) is formed as a contact surface that contacts the side plate (5a) of the indoor unit (5) as a whole. The second buffer portion (B2) is formed with a notch (24) that divides the inner end face of the second buffer portion (B2) into a plurality of parts, thereby making the second buffer portion (B2) the first buffer portion (B1). It may be easier to deform.

  When the notch (24) is formed on the inner end face of the second buffer part (B2) in this way, the second buffer part (B2) can be applied even if a load is applied to the packaging exterior material (2, 3) during cargo handling or transportation. The indoor unit (5) can move with deformation. Accordingly, the deforming portion of the second buffer portion (B2) becomes the movement allowing portion (23), and it is possible to effectively prevent the impact load from being applied to the second region (A2).

  Moreover, in the said embodiment, although the front-end | tip side edge part of the inclination in the said guide flap (16) and the position of the front-end | tip side edge part of a 2nd buffer part (B2) are substantially corresponded, FIG. As shown to (A), the position of the front-end | tip side edge part of the inclination in a guide flap (16) and the front-end | tip side edge part of a 2nd buffer part (B2) does not necessarily need to correspond. Further, as shown in FIG. 10B, the inner edge of the second buffer portion is formed so as to be parallel to the back plate (12), or a tapered shape inclined in the opposite direction to FIG. Good.

  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
22 Folding piece
21 legs
23 Allowable movement part
24 notches
A1 1st area
A2 Second area
B1 first buffer
B2 Second buffer

Claims (6)

It is formed by bending a cardboard blank (20), and at the end of the packaged object (5) in the height direction, the side surface of the packaging exterior material (2, 3) and the side plate (5a) of the packaged object (5) ) Cushioning pad for packaging mounted in the gap between
Legs that extend in the height direction of the side plate (5a) in a direction perpendicular to the side plate (5a) of the article to be packaged (5) by folding the folding piece (22) formed in the blank (20) (21)
The said leg part (21) is a 1st buffer part which is a base formed in the range corresponding to 1st area | region (A1) formed in the predetermined width | variety of the edge part of the side plate (5a) of a to-be-packaged item (5). (B1) and 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 package (5) And a second buffer part (B2) that is
The first buffer portion (B1) is configured to mainly receive a load during handling and transportation, while the second buffer portion (B2) is smaller than the load in the second region (A2). A cushioning pad for packaging, comprising a movement allowing portion (23) that allows movement. In claim 1,
The inner end face of the first buffer portion (B1) on the packaged object (5) side contacts the side plate (5a) of the packaged object (5) and receives the impact load of the packaged object (5), while the second A cushioning pad for packaging, characterized in that a gap is formed between the inner end face of the cushioning part (B2) and the side plate (5a) of the article to be packaged (5). In claim 2,
The inner end face of the second buffer part (B2) is a side plate of the package (5) from the tip side end part of the second buffer part (B2) toward the base side end part of the first buffer part (B1). The cushioning pad for packaging characterized by inclining so that the clearance gap between (5a) may become large. In claim 1,
The inner end surface of the first buffer portion (B1) is formed as a contact surface that contacts the side plate (5a) of the packaged object (5) as a whole, while the second buffer portion (B2) For packaging, characterized in that it is more easily deformed than the first buffer part (B1) by forming a cut (24) that divides the inner end face of the second buffer part (B2) into a plurality of parts. Buffer pad. In any one of Claims 1-4,
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) Inclining away from the side plate (5a) of the package (5) from the base side end of the buffer (B1) toward the tip end of the second buffer (B2) Cushion pad for packaging. In claim 5,
A cushioning pad for packaging, characterized in that a position of an inclined front end portion of the guide flap (16) substantially coincides with a position of a front end side end portion of the second buffer portion (B2).

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