JP2015196531A - Packing material and packing method used for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing material and a packing method capable of protecting side ridge parts of a casing of an air conditioner by a simple packing work.SOLUTION: A covering member (3) of a packing material (1) is constituted such that a main wall part (W1) covers at least a part of a top surface (82) of a casing (81) or at least a part of a bottom surface (83) of the casing (81) and a side wall part (W2) covers a part of a side surface (84) of the casing (81). A first engaging member (51) of the packing material (1) is constituted such that an end part is arranged between an inner side surface (S1) of the side wall part (W2) of the covering member (3) and the side surface (84) of the casing (81), and a first folding-back part (51A) is locked to a first recess (R1), by which the first engaging member (51) is supported by the covering member (3) in the state of covering a first side ridge part (91) of the casing (81).

Description

  The present invention relates to a packing material and a packing method used for an air conditioner.

  Generally, an air conditioner is transported in a state of being packed with a packing material in order to prevent the casing from being damaged. For example, Patent Document 1 discloses a technique in which the surface of a heat exchanger is covered with a corrugated board in an outdoor unit in which the surface of a fin-and-tube heat exchanger is exposed on the side surface of a housing. The cardboard plate is fixed by inserting a lower end between the lower frame of the housing and the surface of the heat exchanger and an upper end of the cardboard plate between the upper frame of the housing and the surface of the heat exchanger. .

Japanese Patent Laid-Open No. 2006-123958

  However, when there is no portion into which a packing material such as a cardboard board is inserted in the air conditioner, the technique of Patent Document 1 cannot be adopted. Moreover, since the side ridge portion of the casing of the air conditioner may be in contact with an object during transportation or the like, it is desirable to protect the side ridge portion with a protective material. Can not do it. In addition, it is desirable that the packing operation of the air conditioner be as simple as possible.

  An object of the present invention is to provide a packing material and a packing method capable of protecting the side ridge portion of the casing of the air conditioner with a simple packing operation.

  A first invention is a packing material (1) used for an air conditioner (80) including a casing (81) having an upper surface (82), a lower surface (83), and a plurality of side surfaces (84) adjacent to the upper surface (82). is there. The packing material (1) includes a covering member (3) and a first engaging member (51). The said covering member (3) has the main wall part (W1) as an upper wall part or a bottom wall part, and the side wall part (W2) adjacent to the said main wall part (W1). As for the said covering member (3), the 1st recessed part (R1) is provided in the inner surface (S1) of the said side wall part (W2). The first engagement member (51) has a first folded portion (51A) at the end. In the covering member (3), the main wall (W1) covers at least part of the upper surface (82) of the casing (81) or at least part of the lower surface (83) of the casing (81). The side wall (W2) is configured to cover a part of the side surface (84) of the casing (81). The first engaging member (51) has an end portion between the inner side surface (S1) of the side wall portion (W2) of the covering member (3) and the side surface (84) of the casing (81). And the first folded portion (51A) is locked to the first recess (R1) so as to cover the first side ridge (91) of the casing (81). (3) is configured to be supported.

  In this configuration, the end portion of the first engagement member (51) is disposed between the inner side surface (S1) of the covering member (3) and the side surface (84) of the casing (81). ) Side and the side surface (84) side of the casing (81) are restricted from moving, and the first folded portion (51A) of the first engagement member (51) is the first recess (R1). ), The first engaging member (51) can be prevented from falling off between the inner surface (S1) of the covering member (3) and the side surface (84) of the casing (81). Moreover, in this structure, while arrange | positioning the edge part of a 1st engagement member (51) between the inner surface (S1) of a coating | coated member (3), and the side surface (84) of a casing (81), it is 1st folding | turning. The first engaging member (51) is supported on the covering member (3) by a simple packing operation in which the portion (51A) is locked to the first recess (R1) provided in the covering member (3), and the casing ( 81) of the first side ridges (91) can be protected.

  The packing material (1) includes a second engaging member (52) having a second folded portion (52A) at an end, and the side wall (W2) of the covering member (3) W2) has a pair of facing surfaces (S2, S3) that are provided on the outer side in the thickness direction of the side wall portion (W2) than the inner side surface (S1) of the W2) and face the thickness direction, and the pair of facing surfaces A second recess (R2) is provided in one of (S2, S3), and the second engagement member (52) is configured such that the end portions of the second engagement member (52) are the pair of opposed surfaces. The second ridge (92) of the casing (81) is disposed between the surfaces (S2, S3) and the second folded portion (52A) is locked to the second recess (R2). It may be configured to be supported by the covering member (3) in a state of covering.

  In this structure, while arrange | positioning the edge part of a 2nd engagement member (52) between a pair of opposing surface (S2, S3), a 2nd folding | turning part (52A) is latched to a 2nd recessed part (R2). By performing such a simple packing operation, the second engaging member (52) can be supported by the covering member (3), and the second side ridge portion (92) of the casing (81) can be protected.

  In the packing material (1), a blowing grill (85) is provided on one side surface (84) of the plurality of side surfaces (84) so as to protrude outward with respect to the one side surface (84). The second engagement member (52) may be configured to cover the second side ridge (92) and the side edge (85E) of the blowing grill (85).

  The second folded portion (52A) of the second engagement member (52) is between a pair of opposing surfaces (S2, S3) provided on the outer side in the thickness direction than the inner surface (S1) of the side wall portion (W2). Placed in. That is, the second engagement member (52) is disposed at a position farther from the side surface (84) of the casing (81) than the first engagement member (51). Therefore, even if the blowing grill (85) is provided on one side surface (84) of the casing (81) and the blowing grill (85) protrudes outward with respect to the one side surface (84), the first The two engaging members (52) can be configured to cover the second side ridge (92) and the side edge (85E) of the blowing grill (85). Thereby, not only the 2nd side ridge part (92) but the side edge part (85E) of the blowing grill (85) can be protected.

  In the packing material (1), it is preferable that the first engagement member (51) and the second engagement member (52) have the same size.

  In this configuration, since the first engagement member (51) and the second engagement member (52) have the same size, it is not necessary to prepare a plurality of types of engagement members, thereby reducing costs. Can be achieved.

  The packing material (1) may include a fixing member (6) wound around the casing (81) in order to fix the first engagement member (51) to the casing (81).

  In this configuration, since the fixing member (6) such as a film or a band is wound around the casing (81), the first engagement member (51) can be reliably fixed to the casing (81).

  A second invention is a packing material (1) used for an air conditioner (80) including a casing (81) having an upper surface (82), a lower surface (83) and a plurality of side surfaces (84) adjacent to the upper surface (82). is there. The packing material (1) includes a covering member (3) and an engaging member. The said covering member (3) has the main wall part (W1) as an upper wall part or a bottom wall part, and the side wall part (W2) adjacent to the said main wall part (W1). The said covering member (3) is provided in the outer side of the thickness direction of the said side wall part (W2) rather than the inner side surface (S1) of the said side wall part (W2), and a pair of opposing surface (S2, S2) which opposes the said thickness direction. S3). In the said covering member (3), the recessed part is provided in one of a pair of said opposing surface (S2, S3). The engaging member has a folded portion at an end. In the covering member (3), the main wall (W1) covers at least part of the upper surface (82) of the casing (81) or at least part of the lower surface (83) of the casing (81). The side wall (W2) is configured to cover a part of the side surface (84) of the casing (81). The engaging member has the end portion disposed between the pair of opposed surfaces (S2, S3), and the folded portion is locked to the concave portion, whereby the side ridge portion of the casing (81) is It is comprised so that it may be supported by the said covering member (3) in the covered state.

  In this configuration, since the end portion of the engaging member is disposed between the pair of facing surfaces (S2, S3) of the covering member (3), the movement of the engaging member in the thickness direction is limited, and Since the folding | returning part of a combined member is latched by a recessed part, it can suppress that an engaging member falls out between between a pair of opposing surfaces (S2, S3) of a coating | coated member (3). Moreover, in this structure, the edge part of an engaging member is arrange | positioned between a pair of opposing surfaces (S2, S3) of a coating | coated member (3), and a folding | returning part is latched by the recessed part provided in the coating | coated member (3). The engagement member can be supported on the covering member (3) by a simple packing operation of protecting the side ridge portion of the casing (81).

  The packing material (1) may include a fixing member (6) wound around the casing (81) in order to fix the engaging member to the casing (81).

  In this configuration, since the fixing member (6) such as a film or a band is wound around the casing (81), the engaging member can be reliably fixed to the casing (81).

  3rd invention is the packing method using the packing material (1) of 1st invention. In the packing method, the main wall portion (W1) of the covering member (3) is at least a part of the upper surface (82) of the casing (81) or the lower surface (83) of the casing (81). The covering member (3) is covered on the casing (81) so that the side wall (W2) of the covering member (3) covers a part of the side surface (84) of the casing (81). And the first engagement member (51) is engaged with the first recess (R1) by engaging the first folded portion (51A) of the first engagement member (51) with the casing (81). A step of temporarily fixing the first engaging member (51) to the covering member (3) in a state of covering the first side ridge (91), and the fixing member (6) to the casing (81) The first engaging part by winding The (51) and a step of fixing to said casing (81).

  In this method, since the engaging member can be temporarily fixed to the covering member (3) by locking the folded portion in the recess, workability when the fixing member (6) is wound around the casing (81) is improved. To do.

  4th invention is the packing method using the packing material (1) of 2nd invention. In the packing method, the main wall portion (W1) of the covering member (3) is at least a part of the upper surface (82) of the casing (81) or the lower surface (83) of the casing (81). The covering member (3) is covered on the casing (81) so that the side wall (W2) of the covering member (3) covers a part of the side surface (84) of the casing (81). And the engagement member is covered with the covering member (3) in a state where the engagement member covers the side ridge portion of the casing (81) by engaging the folded portion of the engagement member with the recess. And temporarily fixing the engaging member to the casing (81) by winding the fixing member (6) around the casing (81).

  In this method, since the engaging member can be temporarily fixed to the covering member (3) by locking the folded portion in the recess, workability when the fixing member (6) is wound around the casing (81) is improved. To do.

  According to the present invention, the side ridge portion of the casing of the air conditioner can be protected by a simple packing operation.

It is a perspective view which shows the state which packed the air conditioner using the packing material which concerns on one Embodiment of this invention. FIG. 2 is an exploded view of FIG. 1. It is a bottom view which shows the upper coating | coated member of the said packing material. The upper and lower views are perspective views showing two buffer members in the upper covering member. The left figure and the right figure are perspective views showing a process of locking the first engagement member to the buffer member of the upper covering member. The left figure, the center figure, and the right figure show the process of inserting the first engagement member between the upper covering member and the air conditioner and locking the first folded portion of the first engagement member to the first recess. It is sectional drawing shown. The left figure and the right figure are perspective views showing a process of locking the second engagement member to the buffer member of the upper covering member. The left figure and the right figure are sectional views showing a step of inserting the second engagement member between the upper covering member and the tray and locking the second folded portion of the second engagement member to the second recess. . The left and right views are front views showing a state in which the covering member and the engaging member are fixed to the casing by winding the fixing member around the casing. The left figure and the right figure are sectional views showing a state in which the engaging member is locked to the upper covering member. It is sectional drawing which shows the state by which the engaging member was latched between the bottom part covering member and the air conditioner.

  Hereinafter, a packing material 1 and a packing method according to an embodiment of the present invention will be described with reference to the drawings. The packing material 1 according to the present embodiment is used for packing the air conditioner 80.

  In the following description of the specific example, the case where the outdoor unit 80A of the air conditioner 80 is packed by the packing material 1 is illustrated, but the present invention is not limited to this, and the packing material 1 of the present embodiment is, for example, the air conditioner 80 It can also be used for packaging indoor units.

[Outdoor unit]
The outdoor unit 80A constitutes an air conditioner 80 together with the indoor unit. As shown in FIGS. 1 and 2, the outdoor unit 80 </ b> A includes a casing 81. The casing 81 is a box that houses an unillustrated blower, heat exchanger, compressor, and the like. The casing 81 has an upper surface 82, a lower surface 83, and a plurality of side surfaces 84 adjacent to these. In the present embodiment, the casing 81 has a substantially rectangular parallelepiped shape, and the plurality of side surfaces 84 are configured by a front side surface 84A, a rear side surface 84B, a right side surface 84C, and a left side surface 85D, but the shape of the casing 81 is not limited thereto. I can't.

  The casing 81 has a plurality of side ridges. Each side ridge is a side where two adjacent side surfaces 84 intersect, and extends in the vertical direction from the upper surface 82 to the lower surface 83. In the present embodiment, the plurality of side ridges include a first side ridge 91 where the front side 84A and the right side 84C intersect, a second side ridge 92 where the front side 84A and the left side 84D intersect, and the rear side. It includes a third side ridge 93 where 84B and the right side 84C intersect, and a fourth side ridge 94 where the rear side 84B and the left side 84D intersect.

  On one side surface 84 (front side surface 84A in the present embodiment) of the casing 81, an air outlet grill 85 that covers the air outlet of the casing 81 is provided. In the present embodiment, the shape of the blowing grill 85 is rectangular when viewed from the front, but is not limited thereto, and may be, for example, circular or polygonal other than rectangular. The blow-out grill 85 is provided at a position biased to one side (left side in the present embodiment) in the horizontal direction in the front view on the front side surface 84A.

  As shown in FIG. 2, the blowing grill 85 has an extending portion 85A that extends in a cylindrical shape forward from the front side surface 84A, and a mesh panel 85B that is attached to the tip of the extending portion 85A. Thus, the blowing grill 85 has a shape protruding outward (front side) with respect to the front side surface 84A. The edge part of the blowing grill 85 (the edge part of the mesh panel 85B) is located in front of the front side face 84A. In the present embodiment, a part of the edge of the blowing grill 84 (side edge 85E shown in FIG. 2) is covered with a second engagement member 52 described later.

[Overall structure of packing materials]
The packing material 1 protects the casing 81 and its internal parts when an object comes into contact with the casing 81 of the outdoor unit 80A or an impact is applied during transportation of the outdoor unit 80A or storage in the warehouse. It has the function to do. The packing material 1 includes one or a plurality of covering members 3 and one or a plurality of engaging members 5 (side ridge protection materials 5). As shown in FIGS. 1 and 2, in the present embodiment, the packing material 1 includes two covering members 3 and four engaging members 5. The two covering members 3 are constituted by an upper covering member 31 and a bottom covering member 32.

  The upper covering member 31 has a function of covering the upper surface 82 of the casing 81 and a part of the side surface 84 adjacent thereto, and protecting the upper surface 82 and a part of the side surface 84. The bottom covering member 32 has a function of covering the lower surface 83 of the casing 81 and a part of the side surface 84 adjacent thereto to protect the lower surface 83 and a part of the side surface 84. The four engaging members 5 are arranged so as to cover the four side ridges 91 to 94 of the casing 81 and have a function of protecting these side ridges 91 to 94. Each engaging member 5 is supported by at least one of the top covering member 31 and the bottom covering member 32.

  Hereinafter, the upper covering member 31, the bottom covering member 32, and the engaging member 5 will be described with specific examples. However, the upper covering member 31, the bottom covering member 32, and the engaging member 5 are limited to the following specific examples. It is not a thing.

[Upper covering member]
(Upper wall and side wall)
As shown in FIGS. 1 and 3, the upper covering member 31 includes an upper wall portion W1 (main wall portion W1), four adjacent to the upper wall portion W1, and extending downward from four edges of the upper wall portion W1. And a side wall W2. As shown in FIG. 1, in the state where the upper covering member 31 is disposed on the upper portion of the casing 81, the upper wall portion W <b> 1 faces the upper surface 82 of the casing 81, and the side wall portion W <b> 2 is on the upper portion of the side surface 84 of the casing 81. opposite.

  In the present embodiment, since the upper covering member 31 is composed of a plurality of members 31A, 31B, and 31C, the upper wall portion W1 and the side wall portion W2 are also composed of a plurality of members 31A, 31B, and 31C. Specifically, it is as follows.

  As shown in FIGS. 2 and 3, the upper covering member 31 includes a tray 31A and one or a plurality of buffer members 31B and 31C arranged inside the tray 31A. In the present embodiment, the upper covering member 31 includes two buffer members 31B and 31C (the right buffer member 31B and the left buffer member 31C). The tray 31A has a box shape with an open bottom. The right cushioning member 31B is disposed so as to cover two corners on the upper right side of the casing 81, and the left cushioning member 31C is disposed so as to cover two corners on the upper left side of the casing 81. In the present embodiment, the tray 31A is formed of a plate-like member such as cardboard or plastic, but is not limited thereto. The buffer members 31B and 31C are made of foamed plastic such as foamed polystyrene, but are not limited thereto.

  The tray 31A has, for example, a rectangular upper part A1 and four side parts A2 extending downward from four edges of the upper part A1. As shown in FIGS. 3 and 4, the buffer member 31 </ b> B has, for example, a rectangular upper part B <b> 1 and three side parts B <b> 2 that extend downward from three edges among the four edges of the upper part B <b> 1. The buffer member 31C has, for example, a rectangular upper part C1, and three side parts C2 extending downward from three edges among the four edges of the upper part C1.

  The upper portion A1 of the tray 31A covers the entire upper surface 82 of the casing 81 and the upper portion of the side surface 84. The upper part B1 of the buffer member 31B and the upper part C1 of the buffer member 31C cover a part of the upper surface 82 of the casing 81. The three side portions B2 of the right cushioning member 31B cover the upper portion of the front side surface 84A, the upper portion of the rear side surface 84B, and the upper portion of the right side surface 84C of the casing 81. The three side portions C2 of the left buffer member 31C cover the upper portion of the front side surface 84A, the upper portion of the rear side surface 84B, and the upper portion of the left side surface 84D of the casing 81.

  As shown in FIG. 3, the upper wall portion W1 of the upper covering member 31 is configured by an upper portion A1 of the tray 31A, an upper portion B1 of the buffer member 31B, and an upper portion C1 of the buffer member 31C. Further, the side wall portion W2 of the upper covering member 31 is configured by a side portion A2 of the tray 31A, a side portion B2 of the buffer member 31B, and a side portion C2 of the buffer member 31C.

(Inside surface of side wall)
As shown in FIGS. 3 and 4, the three side portions B2 of the right cushioning member 31B have an inner surface S1 that opposes the upper portion of the front side surface 84A, the upper portion of the rear side surface 84B, and the upper portion of the right side surface 84C of the casing 81. . The size of the gap between the inner side surface S1 of the buffer member 31B and the side surface 84 of the casing 81 is designed so that an end portion of the first engagement member 51 described later can be inserted.

  The three side portions C2 of the left cushioning member 31C have an inner surface S1 that opposes the upper portion of the front side surface 84A, the upper portion of the rear side surface 84B, and the upper portion of the left side surface 84D of the casing 81. The size of the gap between the inner side surface S1 of the buffer member 31C and the side surface 84 of the casing 81 is designed so that an end portion of the first engagement member 51 described later can be inserted.

(Opposite side of the side wall)
The outer surface S2 of the buffer member 31C faces the inner surface S3 of the tray 31A. The outer side surface S2 of the buffer member 31C and the inner side surface S3 of the tray 31A constitute a pair of opposing surfaces S2 and S3 in the side wall portion W2. The size of the gap between the facing surfaces S2 and S3 is designed so that an end portion of a second engagement member 52 described later can be inserted.

(First recess)
One or more first recesses R1 are provided on the inner surface S1 of the buffer member 31B facing the side surface 84 of the casing 81. One or a plurality of first recesses R1 are provided on the inner surface S1 of the buffer member 31C facing the side surface 84 of the casing 81. In the specific embodiment shown in FIGS. 3 and 4, two first recesses R1 are provided on the inner surface S1 of the buffer member 31B, and one first recess R1 is provided on the inner surface S1 of the buffer member 31C. However, the number of the first recesses R1 is not limited to this. The two first recesses R1 of the buffer member 31B are provided at positions corresponding to the upper portion of the first side ridge portion 91 and the upper portion of the third side ridge portion 93 of the casing 81, and the first recess R1 of the buffer member 31C. Is provided at a position corresponding to the upper portion of the fourth side ridge 94 of the casing 81.

  As shown in the upper diagrams of FIGS. 3 and 4, each first recess R1 of the buffer member 31B has a groove shape extending in the horizontal direction along the inner surface S1 of the buffer member 31B. Each first recess R1 is recessed outward (in the opposite side to the side surface 84 of the casing 81) with respect to the inner surface S1. Accordingly, each first recess R1 has a top surface Ra, a bottom surface Rb, and a side surface Rc located outside the top surface Ra and the bottom surface Rb, as shown in the left diagram of FIG.

  In the present embodiment, one first recess R1 of the buffer member 31B is continuously provided along the front side B2 and the right side B2 of the buffer member 31B, and the buffer member 31B is viewed in plan view. Sometimes it has a substantially L shape, but is not limited thereto. One first recess R1 of the buffer member 31B may be provided in only one of the front side B2 and the right side B2 of the buffer member 31B.

  The other first recess R1 of the buffer member 31B is provided continuously along the rear side B2 and the right side B2 of the buffer member 31B, and is substantially L when the buffer member 31B is viewed in plan. Although it has a letter shape, it is not limited to this. The other first recess R1 of the buffer member 31B may be provided only in one of the rear side B2 and the right side B2 of the buffer member 31B.

  The first recess R1 of the buffer member 31C is provided continuously along the rear side C2 and the left side C2 of the buffer member 31C, and is substantially L-shaped when the buffer member 31C is viewed in plan. However, it is not limited to this. The first recess R1 of the buffer member 31C may be provided only in one of the rear side C2 and the left side C2 of the buffer member 31C.

(Second recess)
One or more second recesses R2 are provided on the outer surface S2 of the buffer member 31C facing the inner surface S3 of the tray 31A. In the specific embodiment shown in FIGS. 2 and 3, the outer surface S2 of the buffer member 31C is provided with a single second recess R2, but the number of the second recesses R2 is not limited thereto. The second recess R <b> 2 is provided at a position corresponding to the upper part of the second side ridge 92.

  As shown in FIGS. 2 and 3, the second recess R2 of the buffer member 31C has a groove shape extending in the horizontal direction along the outer surface S2 of the buffer member 31C. The second recess R2 is recessed inward (side 84 side of the casing 81) with respect to the outer surface S2. Therefore, the second recess R2 has a top surface Ra, a bottom surface Rb, and a side surface Rc located inside the top surface Ra and the bottom surface Rb, as shown in the left diagram of FIG.

  In the present embodiment, the second recess R2 of the buffer member 31C is continuously provided along the front side C2 and the left side C2 of the buffer member 31C, and when the buffer member 31C is viewed in plan view. Although it has a substantially L shape, it is not limited to this. The second recess R2 of the buffer member 31C may be provided only in either the front side C2 or the left side C2 of the buffer member 31C.

[Bottom covering member]
The bottom cover member 32 has the same configuration as the top cover member 31 except that the first recess R1 and the second recess R2 are not provided.

  Specifically, as shown in FIGS. 1 and 2, the bottom covering member 32 is adjacent to the lower wall portion W1 (main wall portion W1) and the lower wall portion W1 and upward from the four edges of the lower wall portion W1. And four side wall portions W <b> 2 extending in the direction.

  The bottom covering member 32 includes a tray 32A and two buffer members 32B and 32C (a right buffer member 32B and a left buffer member 32C) disposed inside the tray 32A. The tray 32A has a box shape with an open top. The right cushioning member 32B is disposed so as to cover two corners on the lower right side of the casing 81, and the left cushioning member 32C is disposed so as to cover two corners on the lower left side of the casing 81.

  The tray 32A has, for example, a rectangular lower part A1, and four side parts A2 extending upward from four edges of the lower part A1. The buffer member 32B has, for example, a rectangular lower part B1 and three side parts B2 extending upward from three edges of the four edges of the lower part B1. The buffer member 31C has, for example, a rectangular lower part C1, and three side parts C2 extending upward from three edges among the four edges of the lower part C1.

  The lower portion A1 of the tray 32A covers the entire lower surface 83 of the casing 81 and the lower portion of the side surface 84. The lower part B1 of the buffer member 32B and the lower part C1 of the buffer member 32C cover a part of the lower surface 83 of the casing 81. The three side portions B2 of the right cushioning member 32B cover the lower portion of the front side surface 84A, the lower portion of the rear side surface 84B, and the lower portion of the right side surface 84C of the casing 81. The three side portions C2 of the left cushioning member 32C cover the lower portion of the front side surface 84A, the lower portion of the rear side surface 84B, and the lower portion of the left side surface 84D of the casing 81.

  The lower wall portion W1 of the bottom covering member 32 is configured by a lower portion A1 of the tray 32A, a lower portion B1 of the buffer member 32B, and a lower portion C1 of the buffer member 32C. Further, the side wall W2 of the bottom covering member 32 is constituted by a side A2 of the tray 32A, a side B2 of the buffer member 32B, and a side C2 of the buffer member 32C.

  The three side portions B2 of the right shock absorbing member 32B have an inner surface S1 that faces the lower portion of the front side surface 84A, the lower portion of the rear side surface 84B, and the lower portion of the right side surface 84C of the casing 81. The size of the gap between the inner side surface S1 of the buffer member 32B and the side surface 84 of the casing 81 is designed so that an end portion of the first engagement member 51 described later can be inserted.

  The three side portions C2 of the left cushioning member 32C have an inner surface S1 that faces a lower portion of the front side surface 84A of the casing 81, a lower portion of the rear side surface 84B, and a lower portion of the left side surface 84D. The size of the gap between the inner surface S1 of the buffer member 32C and the side surface 84 of the casing 81 is designed so that an end portion of the first engagement member 51 described later can be inserted.

  The outer side surface S2 of the buffer member 32C faces the inner side surface S3 of the tray 32A. The outer side surface S2 of the buffer member 32C and the inner side surface S3 of the tray 32A constitute a pair of opposing surfaces S2 and S3 in the side wall portion W2. The size of the gap between the facing surfaces S2 and S3 is designed so that an end portion of a second engagement member 52 described later can be inserted.

[Engagement member]
Each engaging member 5 has a folded portion (first folded portion 51 </ b> A or second folded portion 52 </ b> B) at an end thereof, and is supported by at least one of the upper covering member 31 and the bottom covering member 32. In the present embodiment, each engaging member 5 is provided with a folded portion at its upper end, and the upper end is supported by the upper covering member 31. The engaging member 5 is formed of a plate-like member such as cardboard or plastic, but is not limited thereto.

  As shown in FIG. 2, each engaging member 5 has an elongated shape extending in the vertical direction. In the present embodiment, the four engagement members 5 include three first engagement members 51 and one second engagement member 52. The first engaging member 51 has a first folded portion 51A at the upper end, and the second engaging member 52 has a second folded portion 52A at the upper end.

  In the present embodiment, the first engagement member 51 and the second engagement member 52 have the same structure except that the folded portions 51A and 52B have different folding directions, and the overall sizes are the same. . However, the first engagement member 51 and the second engagement member 52 may have different sizes.

  The first engagement member 51 includes a main body 51B and a first folded part 51A connected to the upper edge of the main body 51B. The main body 51B has a shape in which a single plate-like member extending in the vertical direction is bent at a ridge line portion 51C extending in the vertical direction. The second engagement member 52 has a main body portion 52B and a second folded portion 52A connected to the upper edge of the main body portion 52B. The main body portion 52B has a shape in which a single plate-like member extending in the vertical direction is bent at a ridge line portion 52C extending in the vertical direction. Therefore, the main body portions 51B and 52B of the engaging members 51 and 52 can cover the side ridge portion of the casing 81 and both sides thereof.

  The first folded portion 51A of the first engagement member 51 is a small piece portion formed by being bent to the opposite side (outside) of the side surface 84 of the casing 81 with respect to the main body portion 51B at the upper edge of the main body portion 51B. is there. The second folded portion 52A of the second engagement member 52 is a small piece formed by being bent toward the side surface 84 (inside) of the casing 81 with respect to the main body 52B at the upper edge of the main body 52B.

  As described above, in the present embodiment, since the first engagement member 51 and the second engagement member 52 have the same size, it is not necessary to prepare a plurality of types of engagement members. Reduction can be achieved. That is, the first engagement member 51 can be formed by preparing a member of the same size and bending the folded portion outward at a portion corresponding to the upper edge of the main body (51B or 52B). 51B or 52B), the second engagement member 52 can be formed by folding the folded portion inward at a portion corresponding to the upper edge. It is preferable that a portion corresponding to the upper edge of the main body is preliminarily processed so as to be easily bent outward and inward. As such a process, for example, it is conceivable to provide a linear thin-walled portion or a broken line-like cut at a portion corresponding to the upper edge of the main body.

  As shown in FIGS. 5 and 6, the upper end portion of the first engagement member 51 (that is, the portion near the upper edge of the first folded portion 51 </ b> A and the main body portion 51 </ b> B) is the inner surface of the side wall portion W <b> 2 of the upper covering member 31. It arrange | positions between S1 and the side surface 84 of the casing 81, 51 A of 1st folding | turning parts are latched by 1st recessed part R1. Accordingly, the three first engaging members 51 are supported by the upper covering member 31 in a state of covering the first side ridge 91, the third side ridge 93, and the fourth side ridge 94 of the casing 81.

  As described above, the end of the first engagement member 51 is disposed between the inner surface S1 of the covering member 3 and the side surface 84 of the casing 81, and therefore the inner surface S1 side of the covering member 3 and the side surface 84 side of the casing 81 are disposed. Further, since the first folded portion 51A of the first engagement member 51 is locked to the first recess R1, the movement between the inner surface S1 of the covering member 3 and the side surface 84 of the casing 81 is restricted. It is possible to suppress the first engagement member 51 from falling off.

  As shown in FIGS. 7 and 8, the upper end portion of the second engagement member 52 (that is, the portion near the upper edge of the second folded portion 52A and the main body portion 52B) is a pair of side walls W2 of the upper covering member 31. It arrange | positions between opposing surface S2, S3, and 2nd folding | turning part 52A is latched by 2nd recessed part R2. Thereby, the second engagement member 52 is supported by the upper covering member 31 in a state in which the second side ridge portion 92 of the casing 81 is covered.

  Thus, since the edge part of the 2nd engagement member 52 is arrange | positioned between a pair of opposing surface S2, S2 (between outer side surface S2 of 31 C of buffer members, and inner side surface S3 of tray 31A), opposing surface S2 Movement to the opposite surface S3 side is limited, and the second folded portion 52A of the second engagement member 52 is locked to the second recess R2, so that the second engagement portion 52 is inserted between the pair of opposed surfaces S2 and S3. It can suppress that 2 engagement member 52 falls out.

  As shown in FIG. 1, the second engagement member 52 is configured to cover the second side ridge portion 92 and cover the side edge portion 85 </ b> E of the blowing grill 85. The second folded portion 52A of the second engagement member 52 is disposed between a pair of facing surfaces S2 and S3 provided on the outer side in the thickness direction than the inner surface S1 of the side wall portion W2. That is, the second engagement member 52 is disposed at a position farther from the side surface 84 of the casing 81 than the first engagement member 51. Therefore, in the present embodiment in which the blowing grill 85 is provided on the front side surface 84A of the casing 81 and the blowing grill 85 protrudes outward with respect to the front side surface 84A, the second engagement member 52 has the second side edge. It is possible to cover the portion 92 and cover the side edge 85E of the blowing grill 85.

  In the embodiment shown in FIG. 1, the lower end portion of the first engagement member 51 is inserted into the gap between the bottom covering member 32 and the side surface 84 of the casing 81, and the lower end portion of the second engagement member 52 is the bottom portion. Although it is inserted in the gap between the outer side surface S2 of the buffer member 32C of the covering member 32 and the inner side surface S3 of the tray 32A, it is not limited to this. In this embodiment, since the upper end part of each engagement member 5 is supported by the upper covering member 31 as described above, the lower end part of each engagement member 5 may not be inserted into the gap. It may be positioned above the bottom covering member 32.

[Packing method]
Next, an example of a packing method using the packing material 1 will be described. In the following specific examples, the packing method includes a bottom covering member arranging step, an upper covering member arranging step, an engaging member attaching step, and a fixing member attaching step, and these steps are performed in this order. Not limited to. In the packing method, a part of these steps can be omitted or the order of these steps can be changed. For example, when the fixing member 6 is not used, the fixing member attaching step can be omitted. Further, after the engaging member is locked to the covering member, the covering member can be attached to the outdoor unit. Further, when the bottom covering member 32 is omitted, the bottom covering member arranging step can be omitted.

(Bottom covering member placement process)
First, the bottom covering member 32 is prepared. For example, the tray 32A is placed on a base such as a pallet (not shown), and the buffer member 32B and the buffer member 32C are arranged inside the tray 32A as shown in FIG.

(Outdoor unit placement process)
In the outdoor unit arrangement step, the outdoor unit 80A is placed on the buffer member 32B and the buffer member 32C of the bottom covering member 32. Accordingly, the outdoor unit 80A is supported by the buffer member 32B and the buffer member 32C of the bottom covering member 32.

(Upper covering member placement process)
In the upper covering member arranging step, first, the upper covering member 31 is prepared. For example, as shown in FIG. 3, the buffer member 31B and the buffer member 31C are arranged inside the tray 31A to form the upper covering member 31. Then, the upper covering member 31 is placed on the upper part of the outdoor unit 80A. Accordingly, the main wall portion W1 of the upper covering member 31 covers the upper surface 82 of the casing 81 and the side wall portion W2 of the upper covering member 31 covers the upper portion of the side surface 84 of the casing 81.

(Engagement member mounting process)
In the engaging member attaching step, each engaging member 5 is attached to the upper covering member 31. 5 and 6 are diagrams showing an example of the engaging member attaching step. In FIG. 5, only the buffer member 31B and the first engaging member 51 of the upper covering member 31 are shown for easy understanding, and the tray 31A and the outdoor unit 80A of the upper covering member 31 are not shown.

  First, as shown in the left diagram of FIG. 5 and the left diagram of FIG. 6, the upper end portion of the first engagement member 51 is inserted into the gap G1 between the inner surface S1 of the upper covering member 31 and the side surface 84 of the casing 81. In order to do so, the first engagement member 51 is moved upward from below the gap G1 toward the gap G1.

  As shown in the central view of FIG. 6, the upper end portion of the first engagement member 51 is deformed so that the first folded portion 51A is further bent in the direction approaching the main body portion 51B side when inserted into the gap G1. Therefore, it can pass through the gap G1.

  Then, as shown in the right diagram of FIG. 5 and the right diagram of FIG. 6, when the first engagement member 51 further moves upward and reaches the height of the first recess R <b> 1, the first folded portion 51 </ b> A It is deformed in a direction away from the main body 51B by force (repulsive force) and returns to its original shape. That is, the first folded portion 51A is opened outward (on the side opposite to the side surface 84 of the casing 81) with respect to the main body portion 51B by its elastic force (repulsive force). At this time, the lower end E of the first folded portion 51A is located outside the gap G1. Thereby, the lower end E of the first folded portion 51A is locked by the bottom surface Rb constituting the first recess R1. Thereby, the first folding member 51A of the first engagement member 51 is engaged with the first recess R1, and the first engagement member 51 is covered with the corresponding side ridge portion of the casing 81. 51 is temporarily fixed to the covering member 3. The three first engaging members 51 are attached to the upper covering member 31 as described above.

  On the other hand, as shown in the left diagram of FIG. 7 and the left diagram of FIG. 8, the gap between the pair of opposing surfaces S2 and S3 of the upper covering member 31 (the outer surface S2 of the buffer member 31C and the inner surface S3 of the tray 31A). In order to insert the upper end portion of the second engagement member 52 into G2, the second engagement member 52 is moved upward from below the gap G2 toward the gap G2.

  When the upper end portion of the second engagement member 52 is inserted into the gap G2, the second folded portion 52A is deformed so as to be further bent in the direction approaching the main body portion 52B side, so that it can pass through the gap G2. .

  Then, as shown in the right diagram of FIG. 7 and the right diagram of FIG. 8, when the second engagement member 52 further moves upward and reaches the height of the second recess R <b> 2, the second folded portion 52 </ b> A Due to the force (repulsive force), it is deformed in the direction away from the main body 52B and returns to its original shape. That is, the second folded portion 52A opens to the inner side (side surface 84 side of the casing 81) with respect to the main body portion 52B by its elastic force (repulsive force). At this time, the lower end E of the second folded portion 52A is located inside the gap G2. Accordingly, the lower end E of the second folded portion 52A is locked by the bottom surface Rb that constitutes the second recess R2. Accordingly, the second engagement portion 52 </ b> A of the second engagement member 52 is engaged with the second recess R <b> 2, and the second engagement member 52 covers the second side ridge portion 92 of the casing 81. The member 52 is temporarily fixed to the covering member 3. In this state, as shown in FIGS. 1 and 8, the second folded portion 52A of the second engagement member 52 not only covers the second side ridge portion 92 but also covers the side edge portion 85E of the blowing grill 85. ing.

  Further, as shown in the right diagram of FIG. 8, in the present embodiment, the outer end of the bottom surface Rb constituting the second recess R2 (the position indicated by the one-dot chain line L1 in the right diagram of FIG. 8) defines the second recess R2. It is located on the inner side of the outer end (the position indicated by the one-dot chain line L2 in the right figure of FIG. 8) of the top surface Ra to be formed. Thereby, since the gap G2 between the pair of opposed surfaces S2, S3 of the upper covering member 31 can be increased, it becomes easy to insert the upper end portion of the second engagement member 52 into the gap G2.

  The lower end portion of the first engaging member 51 is inserted into the gap between the bottom covering member 32 and the side surface 84 of the casing 81, and the lower end portion of the second engaging member 52 is the buffer member of the bottom covering member 32. Although it may be inserted into the gap between the outer surface S2 of 32C and the inner surface S3 of the tray 32A, it is not limited to this. As described above, since the upper end portion of each engaging member 5 is supported by the upper covering member 31, the lower end portion of each engaging member 5 may not be inserted into the gap, and the bottom covering member 32 may May also be located above.

(Fixing member mounting process)
Finally, the first engaging member 51 and the second engaging member 52 are fixed to the casing 81 by winding the fixing member 6 around the casing 81.

  9 is a perspective view showing a case where a stretch film (stretchable film) is used as the fixing member 6, and a right view of FIG. 9 is a perspective view showing a case where a binding band is used as the fixing member 6. FIG.

  Since each engaging member 5 is temporarily fixed to the upper covering member 31 in a state of covering the side ridge portion of the casing 81 in the engaging member attaching step described above, in this fixing member attaching step, a stretch film, a binding band, etc. The fixing member 6 can be easily wound, and as a result, the number of work steps can be reduced.

[Modification]
The packaging material 1 may be provided with the following modified locking structure, for example.

  The left view and the right view of FIG. 10 are cross-sectional views showing a state where the engaging member is locked to the upper covering member. In the first modification shown in the left diagram of FIG. 10 and the second modification shown in the right diagram, the upper covering member 31 is provided on the outer side in the thickness direction of the side wall W2 rather than the inner side S1 of the side wall W2. It has a pair of opposing surfaces S2, S3 that face each other.

  The pair of opposing surfaces S2 and S3 are both provided on the buffer member (the right buffer member 31B or the left buffer member 31C). That is, the lower end surface S4 of the side portion B2 of the buffer member is provided with a slit portion (groove portion) that is recessed upward from the lower end surface S4, and the pair of inner side surfaces S2 and S3 constituting the groove portion are formed as described above. A pair of opposing surfaces S2, S3 is configured. And in the modification 1 shown to the left figure of FIG. 10, the recessed part R is provided in the opposing surface S3 located in the outer side (opposite side surface 84 of the casing 81) among a pair of opposing surfaces S2, S3, The folded portion 51A (52A) of the engagement member 5 is locked to the recess R. Moreover, in the modification 2 shown to the right figure of FIG. 10, the recessed part R is provided in the opposing surface S2 located inside (side 84 side of the casing 81) among a pair of opposing surfaces S2, S3, and this recessed part R The folded portion 51A (52A) of the engaging member 5 is locked to the first member.

  FIG. 11 is a cross-sectional view showing a state in which the first engagement member 51 is locked between the bottom covering member 32 and the casing 81 of the outdoor unit 80A. In Modification 3 shown in FIG. 11, the first folded portion 51 </ b> A provided at the lower end portion of the first engagement member 51 is engaged with the first recess R <b> 1 provided in the bottom covering member 32. That is, since the upper end E of the first folded portion 51A is located outside the gap G1 (on the side opposite to the side surface 84 of the casing 81) in the first recess R1, the upper end E of the first folded portion 51A is the first. It is locked by the top surface Ra constituting the recess R1. Thereby, the engaging member 51 is supported by the bottom covering member 32.

[Summary of Embodiment]
In the present embodiment, the end portion of the first engagement member 51 is disposed between the inner side surface S1 of the covering member 3 and the side surface 84 of the casing 81, so that the inner surface S1 side and the side surface 84 side of the casing 81 are directed to the side surface 84 side. Since the movement of the covering member 3 is restricted and the first folded portion 51A of the first engaging member 51 is locked in the first recess R1, the inner surface S1 of the covering member 3 and the side surface 84 of the casing 81 are It can suppress that the 1st engagement member 51 falls out from between. In the present embodiment, the end portion of the first engagement member 51 is disposed between the inner surface S1 of the covering member 3 and the side surface 84 of the casing 81, and the first folded portion 51A is provided on the covering member 3. Further, the first engaging member 51 can be supported by the covering member 3 by a simple packing operation to be engaged with the first recess R1, and the first side ridge 91 of the casing 81 can be protected.

  Moreover, in this embodiment, the packing material 1 is provided with the 2nd engagement member 52 which has the 2nd folding | turning part 52A in an edge part, and the side wall part W2 of the coating | coated member 3 is a side wall rather than inner surface S1 of the side wall part W2. The pair of opposed surfaces S2 and S3 are provided on the outer side in the thickness direction of the portion W2 and are opposed to each other in the thickness direction, and a second recess R2 is provided on one of the pair of opposed surfaces S2 and S3. The engaging member 52 is configured such that the end of the second engaging member 52 is disposed between the pair of facing surfaces S2 and S3 and the second folded portion 52A is locked to the second recessed portion R2 to thereby form the casing 81. The cover member 3 is configured to be supported in a state of covering the second side ridge portion 92.

  Therefore, by arranging the end portion of the second engagement member 52 between the pair of opposed surfaces S2 and S3 and performing a simple packing operation of locking the second folded portion 52A to the second recess R2. The second engaging member 52 can be supported by the covering member 3 and the second side ridge portion 92 of the casing 81 can be protected.

  Further, in the packing material 1, a blowing grill 85 is provided on one side 84 of the plurality of side surfaces 84 so as to protrude outward from the one side 84, and the second engagement member 52 is a second engaging member 52. The side ridge 92 is covered and the side edge 85E of the blowing grill 85 is covered. The second folded portion 52A of the second engagement member 52 is disposed between a pair of facing surfaces S2 and S3 provided on the outer side in the thickness direction than the inner surface S1 of the side wall portion W2. That is, the second engagement member 52 is disposed at a position farther from the side surface 84 of the casing 81 than the first engagement member 51. Therefore, even if the blowing grill 85 is provided on the one side surface 84 of the casing 81 and the blowing grill 85 protrudes outward with respect to the one side surface 84, the second engagement member 52 has the second side ridge. It is possible to cover the portion 92 and cover the side edge 85E of the blowing grill 85. Thereby, not only the 2nd side ridge part 92 but the side edge part 85E of the blowing grill 85 can be protected.

  Moreover, in the packing material 1, it is preferable that the 1st engaging member 51 and the 2nd engaging member 52 have the same magnitude | size. In this configuration, since the first engagement member 51 and the second engagement member 52 have the same size, it is not necessary to prepare a plurality of types of engagement members, thereby reducing costs. it can.

  Moreover, in this embodiment, since the fixing member 6 such as a film or a band is wound around the casing 81, the first engaging member 51 can be reliably fixed to the casing 81.

[Other variations]
As mentioned above, although embodiment of this invention was described, this invention is not limited to these embodiment, A various change, improvement, etc. are possible in the range which does not deviate from the meaning.

  For example, in the first and second modifications shown in FIG. 10, the tray 31A can be omitted.

  In the embodiment, the bottom covering member 32 can be omitted. In the third modification, the upper covering member 31 can be omitted.

  In the above embodiment, when only the first engagement member 51 is used, the tray 31A can be omitted.

  Further, the covering member 3 may include only a single buffer member or may include three or more buffer members.

DESCRIPTION OF SYMBOLS 1 Packing material 3 Cover member 31 Upper cover member 31A Tray 31B Buffer member 31C Buffer member 32 Bottom cover member 32A Tray 32B Buffer member 32C Buffer member 5 Engagement member 51 First engagement member 51A First folding part 52 Second engagement Member 52A Second folded portion 6 Fixing member 80 Air conditioner 80A Outdoor unit 81 Casing 82 Upper surface of casing 83 Lower surface of casing 84 Side surface of casing 85 Blow grill 91 First ridge portion 92 of casing Second ridge portion 93 of casing Third side ridge 94 of the casing Fourth side ridge R1 of the casing First concave portion R2 Second concave portion S1 Inner side surface of the side wall portion (inner side surface of the buffer member)
S2, S3 A pair of opposing surfaces in the side wall (the outer surface of the buffer member and the inner surface of the tray)
W1 Main wall (top wall, bottom wall)
W2 side wall

Claims (9)

A packing material used for an air conditioner (80) including a casing (81) having an upper surface (82), a lower surface (83), and a plurality of side surfaces (84) adjacent to the upper surface (82),
The main wall portion (W1) as an upper wall portion or a bottom wall portion and a side wall portion (W2) adjacent to the main wall portion (W1) are provided on the inner side surface (S1) of the side wall portion (W2). A covering member (3) provided with one recess (R1);
A first engagement member (51) having a first folded portion (51A) at the end,
In the covering member (3), the main wall (W1) covers at least part of the upper surface (82) of the casing (81) or at least part of the lower surface (83) of the casing (81). The side wall (W2) is configured to cover a part of the side surface (84) of the casing (81),
The first engaging member (51) has an end portion between the inner side surface (S1) of the side wall portion (W2) of the covering member (3) and the side surface (84) of the casing (81). And the first folded portion (51A) is locked to the first recess (R1) so as to cover the first side ridge (91) of the casing (81). A packaging material configured to be supported by (3). A second engagement member (52) having a second folded portion (52A) at the end;
The said side wall part (W2) of the said covering member (3) is provided in the outer side of the thickness direction of the said side wall part (W2) rather than the said inner side surface (S1) of the said side wall part (W2), and opposes the said thickness direction. A pair of facing surfaces (S2, S3), and a second recess (R2) is provided on one of the pair of facing surfaces (S2, S3),
The second engagement member (52) has the end portion of the second engagement member (52) disposed between the pair of opposed surfaces (S2, S3) and the second folded portion (52A). Is supported by the covering member (3) in a state of covering the second side ridge (92) of the casing (81) by being locked in the second recess (R2). The packaging material according to claim 1. A blowing grill (85) is provided on one side surface (84) of the plurality of side surfaces (84) so as to protrude outward with respect to the one side surface (84),
The said 2nd engaging member (52) is comprised so that the side edge part (85E) of the said blowing grill (85) may be covered while covering the said 2nd side ridge part (92). Packing material.   The packing material according to claim 3, wherein the first engagement member (51) and the second engagement member (52) have the same size.   The packaging according to any one of claims 1 to 4, comprising a fixing member (6) wound around the casing (81) in order to fix the first engaging member (51) to the casing (81). Wood. A packing material used for an air conditioner (80) including a casing (81) having an upper surface (82), a lower surface (83), and a plurality of side surfaces (84) adjacent to the upper surface (82),
It has a main wall portion (W1) as an upper wall portion or a bottom wall portion and a side wall portion (W2) adjacent to the main wall portion (W1), and is more than the inner side surface (S1) of the side wall portion (W2). The side wall portion (W2) has a pair of opposed surfaces (S2, S3) provided on the outer side in the thickness direction and opposed to the thickness direction, and a recess is provided on one of the pair of opposed surfaces (S2, S3). A coated member (3),
An engagement member (5) having a folded portion at the end,
In the covering member (3), the main wall (W1) covers at least part of the upper surface (82) of the casing (81) or at least part of the lower surface (83) of the casing (81). The side wall (W2) is configured to cover a part of the side surface (84) of the casing (81),
The engaging member (5) is arranged on the casing (81) side by arranging the end portion between the pair of opposing surfaces (S2, S3) and engaging the folded portion with the concave portion. The packaging material comprised so that it may be supported by the said covering member (3) in the state which covered the ridge part.   The packing material according to claim 6, further comprising a fixing member (6) wound around the casing (81) in order to fix the engaging member (5) to the casing (81). A packaging method using the packaging material according to claim 5,
The main wall (W1) of the covering member (3) covers at least a part of the upper surface (82) of the casing (81) or at least a part of the lower surface (83) of the casing (81). Covering the casing (81) with the covering member (3) so that the side wall (W2) of the covering member (3) covers a part of the side surface (84) of the casing (81);
By engaging the first folded portion (51A) of the first engagement member (51) with the first recess (R1), the first engagement member (51) is the first of the casing (81). Temporarily fixing the first engaging member (51) to the covering member (3) in a state of covering the side ridge (91);
A step of fixing the first engaging member (51) to the casing (81) by winding the fixing member (6) around the casing (81). A packaging method using the packaging material according to claim 7,
The main wall (W1) of the covering member (3) covers at least a part of the upper surface (82) of the casing (81) or at least a part of the lower surface (83) of the casing (81). Covering the casing (81) with the covering member (3) so that the side wall (W2) of the covering member (3) covers a part of the side surface (84) of the casing (81);
The engagement member is temporarily fixed to the covering member (3) in a state where the engagement member covers the side ridge portion of the casing (81) by engaging the folded portion of the engagement member with the recess. And a process of
A step of fixing the engaging member to the casing (81) by winding the fixing member (6) around the casing (81).

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