JP7096506B2 - Packing material and packing method - Google Patents

Description

This disclosure relates to packing materials and packing methods.

Products such as washing machines, refrigerators, and hot water supply units have casings that include side plates, and are packed with corrugated cardboard at the time of shipment from the factory in order to prevent the casing from being damaged or deformed during transportation or storage. Packed with wood. Further, it has been proposed to provide a cushioning material on the surface (inner surface) of the packaging material facing the casing in order to prevent the packaging material from being deformed by an external force or the like and coming into contact with the casing (see, for example, Patent Document 1). ).

In the packaging container described in Patent Document 1, a band-shaped distance piece having a thickness similar to the gap between the inner surface of the packaging container and the outer surface of the packaged object is adhered to the inner surface of the packaging container. A plurality of these distance pieces are provided at intervals so that the inner surface of the packaging container does not come into contact with the object to be packaged even if the packaging container is deformed by an external force.

Jikkai Sho 58-167048 Gazette

Some products have protrusions on the surface of the casing. When the protruding portion is made of a relatively soft material such as synthetic resin, if the inner surface of the packing material for packing the product comes into contact with the protruding portion, the protruding portion may be damaged. In order to avoid this, it is conceivable to provide a clearance between the protrusion and the inner surface of the packing material by using a cushioning material (distant piece) as described in Patent Document 1.

However, when the cushioning material avoids contact between the protrusion having a certain height and the packing material, the required thickness of the cushioning material becomes large, and the size of the packing material becomes large accordingly. As a result, the amount of packing material used increases. In addition, packaging costs are high because a cushioning material, which is a separate member, is also required. Further, since the size of the packing material is increased, the transportation cost is increased, and the loading efficiency on the vehicle and the storage efficiency in the warehouse are lowered.

It is an object of the present disclosure to provide a packing material and a packing method capable of omitting the use of a cushioning material and achieving miniaturization.

The packaging material of this disclosure is
(1) A packing material for packing a product having a casing including a side plate.
The packing material has an opening larger than the size of the protrusion provided so as to protrude from the side plate at a position facing the protrusion when the product is packed with the packing material.
Around the opening, a folding portion sandwiched between a pair of facing cutting portions is provided.
One end of the pair of cuts is connected to an edge defining the opening so that the operator can cut the fold from the packing material in the packed state.

In the packing material of the present disclosure, the contact between the protruding portion and the packing material can be suppressed by providing an opening, and the protruding portion comes into contact with the packing material of another product due to the folding portion having a cushioning function. Can be suppressed. In the packaging material of the present disclosure, it is possible to omit the use of the conventional cushioning material when suppressing the protrusion from contacting the packaging material or the like, so that the packaging material can be miniaturized.

(2) In the packing material of the above (1), it is desirable that the folding portion is provided at least above the opening in a state where the product is packed with the packing material. In this case, by folding the folding portion on the upper side of the opening in the packed state, it is possible to prevent the folding portion from hanging down during packing and covering the opening when the folding portion is provided before packing.

(3) In the packing material of the above (2), it is desirable that the folding portion is provided on both the upper side and the lower side of the opening in the state where the product is packed with the packing material. In this case, by providing the folding portions above and below the opening, it is possible to more reliably prevent the protruding portions from coming into contact with the packaging material or the like of another product.

(4) In the packaging materials (1) to (3), it is desirable that the folded portion has a locking portion that protrudes in a direction substantially orthogonal to the cut portion. In this case, the locking portion can prevent the folded portion from popping out from the surface (outer surface) of the packing material.

(5) In the packaging materials (1) to (4), it is desirable that the corners of the opening-side end of the folded portion have a curved shape. In this case, by forming the corner portion of the end portion into a curved shape, it is possible to prevent the corner portion from damaging the side surface of the casing when the folded portion is folded.

The packaging method of this disclosure is
(6) A method of packing a product having a casing including a side plate and having a protrusion provided so as to project from the side plate, using the packing material of the above (1).
A step of packing the product using the packing material so that the protrusion fits within the opening in a side view.
The step of cutting the folded portion from the packing material using the pair of cut portions and folding the folded portion so that the end of the folded portion is located on the product side, and the folded portion is the folded portion. Including a step of pushing into a second opening formed by cutting the product so that the end portion of the folded portion faces the casing of the product.

In the packing method of the present disclosure, the contact between the protruding portion and the packing material can be suppressed by providing an opening, and the protruding portion comes into contact with the packing material or the like of another product by the folding portion having a cushioning function. Can be suppressed. In the packing method of the present disclosure, it is possible to omit the use of the conventional cushioning material, so that the packing material can be miniaturized.

(7) In the packing method of (6), the folded portion has a locking portion that protrudes in a direction substantially orthogonal to the cut portion.
In the facing step, it is desirable to arrange the locking portion between the back surface of the packing material and the casing of the product. In this case, the locking portion can prevent the folded portion from popping out from the surface (outer surface) of the packing material.

It is a perspective explanatory drawing of one Embodiment of the packing material of this disclosure. It is a front view of the part shown by A of FIG. It is a front view of the part shown by B of FIG. A state in which the folded portion shown in FIG. 2 is cut off from the packing material is shown, (a) is a perspective explanatory view, and (b) is a cross-sectional explanatory view. The cut-out folding portion is shown in the middle of being bent, (a) is a perspective explanatory view, and (b) is a cross-sectional explanatory view. The cut-out bent portion is shown in a bent state, (a) is a perspective explanatory view, and (b) is a cross-sectional explanatory view. The folded portion is pushed into the opening formed by cutting the folded portion from the packing material, (a) is a perspective explanatory view, and (b) is a cross-sectional explanatory view. It is a front view at the time of product packing of the part shown by A of FIG. It is a figure which looked at the part shown by A of FIG. 1 from the back side of a packing material.

Hereinafter, the packing material and the packing method of the present disclosure will be described in detail with reference to the attached drawings. It should be noted that the present disclosure is not limited to these examples, and is indicated by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

FIG. 1 is a perspective explanatory view of a packing material P according to an embodiment of the present disclosure. The packing material P has a square tube shape, and can be manufactured by subjecting corrugated cardboard to processing such as bending and cutting. The packing material P can be made from one corrugated cardboard, or can be made by assembling a plurality of parts made from a plurality of (for example, two) corrugated cardboards. In the present embodiment, the front surface 10 and the left side surface 11 of the packing material P are made of one cardboard, and the rear surface 12 and the right side surface 13 are made of another cardboard.

The packing material P assembled using an adhesive, an adhesive tape, or the like is put on the product 20 so that the upper portion of the product 20 to be packed is inserted into the lower end opening 14 of the packing material P. The upper end opening 15 of the packing material P is provided with abutting portions 16 and 17 formed by bending the upper portions of the left side surface 11 and the right side surface 13 inward. The packing material P covered with the product 20 is positioned in the vertical direction when the back surfaces of the abutting portions 16 and 17 come into contact with the top plate 21a of the casing 21 of the product 20.

The product 20 has a casing 21 made of a steel plate or the like, and various devices, parts, and the like are housed in the casing 21. The casing 21 has a vertically long rectangular parallelepiped shape, and has four side plates 21b, 21c, 21d, 21e, and a bottom plate 21f in addition to the top plate 21a. A first inspection port cover 22 and a second inspection port cover 23 are provided on the side plate 21b corresponding to the front surface 10 of the packing material P. The first inspection port cover 22 and the second inspection port cover 23 form a projecting portion provided so as to project from the side plate 21b of the casing 21. The product 20 packed by the packing material P is not particularly limited in this embodiment as long as it has a protrusion on the side plate 21a of the casing 21. Examples of such a product 20 include a hot water supply unit, a gas power generation unit , and the like.

The first inspection port cover 22 is provided on the upper part of the side plate 21b, and the second inspection port cover 23 is provided on the lower part of the side plate 21b. Both inspection port covers 22 and 23 are provided for regular maintenance of the product 20, and can be made of a synthetic resin such as AES. Both inspection port covers 22 and 23 can be fixed to the side plate 21b by using screws or bolts. Further, both the inspection port covers 22 and 23 may have a structure that can be opened and closed by using a hinge.

The front surface 10 of the packing material P has an opening 24 corresponding to the first inspection port cover 22. The opening 24 is larger than the size of the first inspection port cover 22 and is formed at a position facing the first inspection port cover 22 in a state where the product 20 is packed with the packing material P (see FIG. 2). Further, the front surface 10 of the packing material P has an opening 25 corresponding to the second inspection port cover 23. The opening 25 is larger than the size of the second inspection port cover 23, and is formed at a position facing the second inspection port cover 23 in a state where the product 20 is packed with the packing material P (see FIG. 3). The first inspection port cover 22 and the second inspection port cover 23 are sized to fit in the opening 24 and the opening 25, respectively, when the front surface 10 is viewed from the front in a state where the product 20 is packed with the packing material P. ..

FIG. 2 is a front view of the portion shown by A in FIG. A folding portion 30 is provided on the upper side of the opening 24 (upper side when the product 20 is packed with the packing material P) in the periphery of the opening 24. The folding portion 30 is sandwiched between slits 31a and 31b, which are a pair of facing cutting portions. The slits formed in the cardboard are drawn with thick lines for the sake of clarity. The lower ends of the slits 31a and 31b are connected to the upper edge 24a of the edge defining the opening 24. That is, slits 31a and 31b are formed from the upper edge 24a of the edge defining the opening 24 toward the upper side.

The folded portion 30 in the present embodiment has a rectangular shape. A left mountain fold line 32a and a right mountain fold line 32b are provided near the center of the folding portion 30 in the vertical direction. The left mountain fold line 32a is provided at the left end portion near the center of the folding portion 30, and the right mountain folding line 32b is provided at the right end portion near the center of the folding portion 30. The left mountain fold line 32a and the right mountain fold line 32b are both composed of two ruled lines substantially parallel to each other in the left-right direction.

An H-shaped slit 33 is formed between the left mountain fold line 32a and the right mountain fold line 32b. By forming the H-shaped slit 33, the folded portion 30 can be easily bent. A left valley fold line 34a and a right valley fold line 34b are provided on the upper end edge of the folded portion 30. The left valley fold line 34a is provided at the left end of the upper end edge of the fold portion 30, and the right valley fold line 34b is provided at the right end of the upper end edge of the fold portion 30. A slit 35 is formed between the left valley fold line 34a and the right valley fold line 34b. Both the left valley fold line 34a and the right valley fold line 34b are composed of ruled lines. Further, by forming the slit 35, the folded portion 30 can be easily bent.

The folded portion 30 has a pair of locking portions 36, 37 protruding in a direction substantially orthogonal to the slits 31a, 31b (cut portion). The locking portion 36 projects to the left from the slit 31a, and the locking portion 37 projects to the right from the slit 31b. The locking portion 36 and the locking portion 37 have a shape that is line-symmetrical with respect to the vertical center line O1 of the folded portion 30. Both the locking portion 36 and the locking portion 37 have a trapezoidal shape, and the portions corresponding to one leg (upper leg) of the trapezoid are curved portions 36a and 37a, and the other leg of the trapezoid (lower). The portions corresponding to the side legs) are the shaded portions 36b and 37b. As will be described later, the locking portions 36 and 37 engage with the back surface of the packing material P and play a role of suppressing the pushed-in folding portion 30 from popping out from the front surface (outer surface) of the packing material P.

The lower end portion 30a of the folding portion 30, in other words, the corner portion (corner portion) 38 of the end portion 30a on the side facing the opening 24 has a curved shape. By forming the corner portion 38 into a curved shape in this way, it is possible to prevent the corner portion 38 from being rubbed by vibration during transportation and damaging the side plate 21b while the corner portion 38 is in contact with the side plate 21b of the casing 21 after the folded portion 30 is folded. be able to.

In the folding portion 30, the direction of the wave of the corrugated cardboard of the corrugated cardboard constituting the folding portion 30 is the direction of the left mountain fold line 32a and the right mountain fold line 32, and the direction of the left valley fold line 34a and the right valley fold line 34b. The positions on the corrugated cardboard are selected so as to be orthogonal to each other (see (b) in FIGS. 4 to 7). As a result, the folding portion 30 can be easily folded with a relatively small force. Specifically, a worker who packs the product 20 can fold the folding portion 30 with one hand.

FIG. 3 is a front view of the portion shown by B in FIG. Folded portions 30 are provided on both the upper side and the lower side of the opening 25 formed in this portion. The upper folding portion 30 and the lower folding portion 30 are provided so as to have a line-symmetrical structure with respect to the left-right center line O2 of the opening 25. Since the structure of both folding portions 30 shown in FIG. 3 is the same as the structure of the folding portions 30 shown in FIG. 2, the same reference numerals are given to common configurations or elements, and for the sake of simplicity, they are described. The explanation is omitted.

Next, with reference to FIGS. 4 to 8, a packing method of the product 20 using the packing material P, including a folding method of the folding portion 30 of the portion shown by A described above, will be described.
First, the packing material P shown in FIG. 1 prepared by using two corrugated cardboards is prepared. At this stage, the folded portion 30 is not folded.
Next, the product 20 is covered with the packing material P so that the front surface 10 of the packing material P corresponds to the side plate 21b of the casing 21 having the first inspection port cover 22 and the second inspection port cover 23. At that time, the upper part of the product 20 is inserted into the lower end opening 14 of the packing material P, and the packing material P is put on the product 20. Since the above-mentioned abutting portions 16 and 17 are provided in the upper end opening 15 of the packing material P, the back surface of the abutting portions 16 and 17 abuts on the top plate 21a of the casing 21 of the product 20 to bring the packing material P into contact with the top plate 21a. Positioning of P in the vertical direction is performed. In this state, the product 20 is packed by the packing material P so that the first inspection port cover 22 fits in the opening 24 and the second inspection port cover 23 fits in the opening 25 in the side view.

Next, the folding portion 30 is cut from the packing material P, and the folding portion 30 is folded so that the cut end portion 30a of the cut portion 30 is located on the product 20 side (folding step). Hereinafter, the details of the folding process will be described using the folding portion 30 provided on the upper side of the opening 24, but the folding portion 30 provided on the upper side and the folding portion 30 provided on the lower side of the opening 25 will also be described. The folding step can be performed in the same manner. Therefore, for the sake of simplicity, the description of the folding step of the upper and lower folding portions 30 provided in the opening 25 will be omitted.

First, the folding portion 30 is cut from the packing material P along the slits 31a and 31b provided on the left and right sides of the folding portion 30. At that time, for example, the operator puts his thumb on the lower end 39 (see FIGS. 2 and 4) of the folding portion 30, folds the left and right mountain fold lines 32a and 32b into mountain folds, and folds the left and right valley fold lines 34a and 34b. The folding portion 30 is cut off from the packing material P so as to be folded in a valley. 4A and 4B show a state in which the folded portion 30 is cut off from the packing material P, FIG. 4A is a perspective explanatory view, and FIG. 4B is a cross-sectional explanatory view. Also in FIGS. 5 to 7 described later, (a) is a perspective explanatory view, and (b) is a cross-sectional explanatory view. For the sake of clarity, the corrugated cardboard corrugated board constituting the packing material P is omitted in the perspective explanatory views of FIGS. 4 to 7. Similarly, in each cross-sectional explanatory view of FIGS. 4 to 7, the notation of the corrugated sheet in the locking portion is omitted.

FIG. 5 shows a state in which the folded portion 30 is folded to almost the middle. In this state, the folding portion 30 is folded until the portions below the left and right mountain folding lines 32a and 32b of the folding portion 30 are in a substantially horizontal state.

FIG. 6 shows a state in which the folding of the folding portion 30 is almost completed. The back surface of the portion below the left and right mountain fold lines 32a and 32b (the surface on the product 20 side immediately after the packing material P is put on the product 20) is more than the left and right mountain fold lines 32a and 32b. The folded portion 30 is folded to the extent that it is substantially in contact with the back surface of the upper portion.

Then, the folded portion 30 as shown in FIG. 7 is pushed into the second opening 40 (see FIG. 6) formed by cutting the folded portion 30, and the end portion 30a of the folded portion 30 is pushed into the second opening 40 (see FIG. 6). Facing the casing 21 of the product 20 (see FIG. 7). At that time, the locking portions 36, 37 are pushed into the second opening 40 so that the locking portions 36, 37 are located on the back surface side of the packing material P. At this time, of the trapezoidal locking portions 36 and 37, one leg (lower leg) that first contacts the edge of the second opening 40 is composed of the shaded portions 36b and 37b, so that it is smooth. The locking portions 36 and 37 can be pushed into the second opening 40. Further, since the corner portion 38 of the end portion 30a of the folded portion 30 has a curved shape, even if the corner portion 38 comes into contact with the first inspection port cover 22 when the folded portion 30 is folded, the first inspection port is concerned. After the cover 22 is damaged or the folded portion 30 is folded, the corner portion 38 can be prevented from being rubbed by vibration during transportation while being in contact with the casing 21 and the casing 21 being damaged.

When the folded portion 30 is folded, the end portion 30a of the folded portion 30 faces the casing 21 of the product 20 as described above. At this time, the end portion 30a located in the space between the casing 21 and the packing material P can function as a cushioning material, and the first inspection port cover 22 arranged in the opening 24 is outward from the opening 24. It is possible to prevent the product from protruding into contact with the packaging material of other products.

The packing material P for which the folding portion 30 has been folded is fixed to the product 20 by using a string, a band, or a tape.
FIG. 8 is a front view of the portion shown by A in FIG. 1 in a state where the folding portion 30 has been folded. In the present embodiment, product information I such as the product name, model number, serial number, etc. of the product 20 is written on the upper part of the first inspection port cover 22 of the product 20, and is a part of the second opening 40 formed by folding. The product information I can be easily visually recognized from the outside. In other words, the product information I can be visually recognized in a state where the product 20 is packed by the packing material P. This makes it possible to easily check the contents of the packaged product.

FIG. 9 is a view of the portion shown by A in FIG. 1 as viewed from the back side in a state where the folding of the folding portion 30 is completed. As shown in the figure, the locking portions 36 and 37 pushed into the second opening 40 are locked with the back surface 10a of the front surface 10 of the packing material P, and the folding portion 30 is the surface (outer surface) of the packing material P. It can be prevented from jumping out of. By suppressing the folding portion 30 from popping out, the folding portion 30 can be more reliably functioned as a cushioning material.

[Action and effect of the embodiment]
In the above-described embodiment, since the packing material P is provided with an opening larger than the size of the inspection port cover provided so as to project from the side plate 21b of the casing 21 of the product 20 to be packed, the inspection port cover and the packing material are provided. It is possible to suppress contact with P. By doing so, when the inspection port cover is made of a material such as a soft synthetic resin, it is possible to prevent the inspection port cover from coming into contact with the packing material P and being damaged. In addition, since a folding portion having a cushioning function is provided around the opening, it is possible to prevent the inspection port cover located in the opening from protruding outward from the opening and coming into contact with packing materials of other products. be able to. In the packing material according to the present embodiment, it is possible to omit the use of the conventional cushioning material when suppressing the inspection port cover from coming into contact with the packing material or the like. As a result, the packing material can be miniaturized, the amount of the packing material used can be reduced, and the cushioning material, which is a separate member, is not required, so that the packing cost can be reduced. Further, since the packing material can be miniaturized, the transportation cost can be suppressed, and the loading efficiency on the vehicle and the storage efficiency in the warehouse can be improved.

Further, in the above-described embodiment, the folded portion is provided at least on the upper side of the opening in the state where the product 20 is packed with the packing material P. A folding portion in which a part of the packing material is folded into the product side can be provided before the packing material is put on the product. However, in this case, the folded portion may hang down and cover the opening when the packing material is put on the product due to its own weight or the restoring force of the folded portion. In the present embodiment, the folding portion provided on the upper side of the opening is folded toward the product side after the packing material is put on the product, so that it is possible to avoid hanging down and covering the opening as described above. As a result, it is not necessary to consider the sagging, so that the efficiency of the packing work can be improved.

Further, in the above-described embodiment, in the portion shown by B in FIG. 1, folding portions are provided on both the upper side and the lower side of the opening. By providing the folding portion not only on the upper side of the opening but also on the lower side, it is possible to more reliably prevent the inspection port cover from coming into contact with the packaging material of another product.

Further, in the above-described embodiment, the folding portion 30 is provided with the locking portions 36 and 37 protruding in the direction substantially orthogonal to the slits 31a and 31b which are the cutting portions. The locking portions 36 and 37 are arranged between the side plate 21b of the casing 21 and the packing material P in a state where the folding portion 30 is pushed into the second opening 40, and the folding portion 30 is the surface of the packing material P. It is possible to prevent it from popping out from the (outer surface). By suppressing the folding portion 30 from popping out, the folding portion 30 can be more reliably functioned as a cushioning material.

Further, in the above-described embodiment, since the corner portion 38 of the end portion 30a of the folding portion 30 has a curved shape, the corner portion 38 comes into contact with the first inspection port cover 22 when the folding portion 30 is folded. It is also possible to prevent the first inspection port cover 22 from being damaged, or after the folded portion 30 is folded, the corner portion 38 being rubbed by vibration during transportation while being in contact with the casing 21 to prevent the casing 21 from being damaged.

[Other variants]
The present disclosure is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.
For example, in the above-described embodiment, the inspection port cover is exemplified as a protruding portion protruding from the casing of the product, but as the protruding portion, for example, a switch cover can be exemplified.

Further, in the above-described embodiment, two inspection port covers are provided on the casing, but the number of inspection port covers may be one or three or more.
Further, in the above-described embodiment, two inspection port covers are provided on one side plate, but an inspection port cover may be provided on each of the two side plates.

Further, in the above-described embodiment, the folding portions are provided on the upper side and the lower side of the opening, but the folding portions may be provided on the left side and the right side of the opening. In this case as well, by providing the two folding portions line-symmetrically with respect to the vertical center line of the opening, it is possible to more reliably prevent the inspection port cover from coming into contact with the packing material of another product. ..

Further, in the above-described embodiment, slits are provided on the left and right of the folded portion as the cut portion, but if the folded portion can be cut from the packing material, for example, instead of the slit, the broken line is used as the cut portion on the left and right of the folded portion. It can also be installed in.

Further, in the above-described embodiment, a double-sided corrugated cardboard having a corrugated cardboard sandwiched between two liners (front liner and back liner) is used as the corrugated cardboard, but another corrugated cardboard such as a double-sided corrugated cardboard may be used. You can also.

10: Front surface 11: Left side surface 12: Rear surface 13: Right side surface 14: Lower end opening 15: Upper end opening 16: Reliable part 17: Reliable part 20: Product 21: Casing 21a: Top plate 21b: Side plate 21c: Side plate 21d: Side plate 21e : Side plate 21f: Bottom plate 22: First inspection port cover (protruding part)
23: 2nd inspection port cover (protruding part)
24: Opening 24a: Upper edge 25: Opening 30: Folding part 30a: End part 31a: Slit (cutting part)
31b: Slit (cut part)
32a: Left mountain fold line 32b: Right mountain fold line 33: Slit 34a: Left valley fold line 34b: Right valley fold line 35: Slit 36: Locking portion 36a: Curved portion 36b: Diagonal line portion 37: Locking portion 37a: Curved part 37b: Diagonal part 38: Corner part 39: Lower end 40: Second opening I: Product information O1: Center line O2: Center line P: Packing material

Claims (7)

A packing material (P) for packing a product (20) provided with a casing (21) including a side plate (21b).
The packing material (P) has an opening (24, 25) larger than the size of the protruding portion (22, 23) provided so as to project from the side plate (21b), and the product (20) is provided with the packing material (P). It is held at a position facing the protrusions (22, 23) in the state of being packed in.
Around the opening (24, 25), a folding portion (30) sandwiched between a pair of facing cutting portions (31a, 31b) is provided.
One end of the pair of cutout portions (31a, 31b) has an opening (24, 25) so that the operator can cut the folded portion (30) from the packing material (P) in the packed state. Packaging material (P) connected to the defining edge. The packing material according to claim 1, wherein the folding portion (30) is provided at least above the openings (24, 25) in a state where the product (20) is packed with the packing material (P). (P). The packing material according to claim 2, wherein the folding portion (30) is provided on both the upper side and the lower side of the opening (25) in a state where the product is packed with the packing material (P). P). The invention according to any one of claims 1 to 3, wherein the folded portion (30) has a locking portion (36, 37) projecting in a direction substantially orthogonal to the cut portion (31a, 31b). Packaging material (P). The packaging material (P) according to any one of claims 1 to 4, wherein the corner portion of the end portion (30a) on the opening (24, 25) side of the folding portion (30) has a curved shape. .. Using the packing material (P) according to claim 1, the casing (21) including the side plate (21b) is provided, and the protruding portion (22, 23) is provided so as to project from the side plate (21b). It is a method of packing the product (20).
A step of packing the product (20) using the packing material (P) so that the protruding portion (22, 23) fits in the opening (24, 25) in a side view.
The folding portion (30) is cut from the packing material (P) using the pair of cutting portions (31a, 31b) so that the end portion (30a) of the folding portion (30) is located on the product (20) side. The folding portion (30) is folded into the second opening (40) formed by cutting the folded portion (30), and the folded portion (30) is pushed into the folded portion (30). A packaging method comprising a step of making the end portion (30a) of the product (20) face the casing (21) of the product (20). The folded portion (30) has a locking portion (36, 37) protruding in a direction substantially orthogonal to the cut portion (31a, 31b).
The packing method according to claim 6, wherein in the step of facing each other, the locking portions (36, 37) are arranged between the back surface of the packing material (P) and the casing (21) of the product.

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