JP2016196323A - Film roll package of packaging material for battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film roll package of a packaging material for a battery which achieves moisture proofness.SOLUTION: A film roll package of a packaging material for a battery is provided. The film roll package includes: a film roll; a box; a support member; and a protection bag. The film roll includes: a shaft core; and a roll body formed by a rolled battery packaging material sheet wound around the shaft core. The battery packaging material sheet has a metal layer. The shaft core has a protruding part protruding from an end surface of the roll body. The box stores the film roll. The support member is installed in the box and holds the protruding part to support the film roll so as to have a predetermined space between an outer peripheral surface of the roll body and a bottom surface of the box. The protection bag is stored in the box and seals the film roll and the support member supporting the film roll in a vacuum state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a film roll package for battery packaging and a method for producing the same.

  Conventionally, sheet-shaped packaging materials have been used to seal battery elements such as electrodes and electrolytes in batteries. Such a battery packaging sheet is attracting attention as being easy to process into various shapes and contributing to thinning and lightening of the battery. In addition, such a battery packaging sheet is usually stored and transported in a state of being wound around a shaft core before being processed into a battery. At this time, the shaft core is often set to a length that protrudes from the end surface of the roll body (portion excluding the shaft core) so that the film roll can be conveyed without damaging the battery packaging sheet. Such a configuration is particularly meaningful when the film roll is large, that is, when the film roll is heavy and needs to be transported by a crane or the like. This is because the film roll can be conveyed without damaging the battery packaging sheet by gripping the protruding portion of the shaft core with a crane or the like.

  By the way, in patent document 1, in order to protect the film roll for flexible printed wiring boards appropriately also at the time of transportation, it is disclosed that an aluminum vapor deposition film is wound around the said roll from a moisture-proof viewpoint. Also in the film roll of patent document 1, the axial core protrudes from the end surface of a roll main body, and the aluminum vapor deposition film is wound around this protrusion part.

  Moreover, as shown in patent document 2, the protrusion part of the axial center of a film roll can be utilized also in order to protect a roll main body from external force within the packaging box of a film roll. Specifically, in Patent Literature 2, the protruding portion of the shaft core is held by a pair of support members installed in the packaging box so that the outer peripheral surface of the roll main body maintains a constant distance from the bottom surface of the box.

JP 2012-6616 A JP 2014-213893 A

  Regarding the film roll of the battery packaging material, it is conceivable that the film roll is packaged with a protective sheet such as an aluminum vapor deposition film as in Patent Document 1. However, when the packaging method of Patent Document 1, that is, the method of winding the protective sheet around the protruding portion of the shaft core is employed, it is difficult to grip the protruding portion of the shaft core with a crane or the like when the film roll is transported. This is because the film portion wound around the protruding portion may be damaged. In this case, moisture may enter from the damaged portion, and the moisture-proof function of the protective sheet may not be sufficiently exhibited. However, if the aluminum vapor deposition film is not wrapped around the protruding part of the shaft core, it is difficult to fix the film to the film roll, and the packaging is unwound due to the impact applied during transportation, which eventually protects the film. There may be a situation in which the moisture-proof function of the sheet is not fully exhibited.

  Moreover, the packaging method of patent document 1 can also become a problem also when the protrusion part of the axial center of a film roll is hold | maintained at a supporting member within a packaging box. That is, if the protruding portion of the shaft core is covered with the protective sheet, the portion is sandwiched between the support member and the protruding portion of the shaft core, and thus may be damaged by friction during transportation. Again, this may result in the moisture-proof function of the protective sheet not being fully exhibited.

  This invention is made | formed in view of the above problem, and it aims at providing the film roll package of the packaging material for batteries excellent in moisture resistance, and its manufacturing method.

  The film roll package of the battery packaging material according to the first aspect of the present invention includes a film roll, a box, a support member, and a protective bag. The film roll includes a shaft core and a roll body made of a roll-shaped battery packaging sheet wound around the shaft core. The said packaging material sheet for batteries has a metal layer, and the said axial center has the protrusion part which protruded from the end surface of the said roll main body. The box houses the film roll. The support member is installed in the box and holds the protrusion, thereby supporting the film roll so that the outer peripheral surface of the roll main body maintains a constant distance from the bottom surface of the box. The protective bag is housed in the box and seals the film roll and the support member in a state of supporting the film roll in a vacuum state.

Here, the “vacuum state” does not mean only an absolute vacuum state where the pressure is 0, but may mean a negative pressure state where the pressure is lower than the standard atmospheric pressure. Therefore, the "vacuum state", for example, Japanese Industrial Standards low vacuum (or 100 Pa) as defined in (JIS) state, medium vacuum (100～0.1PA) state, a high vacuum (0.1 to 10 ^{- 5} PA) state and ultra high vacuum (10 ^-5 PA or less) state are all included.

  The film roll package of the battery packaging material according to the second aspect of the present invention is the film roll package according to the first aspect, wherein the support member has a constant outer peripheral surface of the roll body from the upper surface of the box. The film roll is supported so as to keep the interval of.

  The film roll package of the battery packaging material according to the third aspect of the present invention is the film roll package according to the first aspect or the second aspect, wherein the support member includes a lower support member and an upper support member. Including. The lower support member stands on the bottom surface of the box with the protective bag in between, and receives the protrusion from below so as to restrict the downward movement of the film roll in the box. Has a notch at the top. The upper support member is disposed adjacent to the upper side of the lower support member, and restricts upward movement of the film roll in the box.

  The film roll package of the battery packaging material according to the fourth aspect of the present invention is the film roll package according to the third aspect, wherein the upper support member has a second notch for receiving the upper portion of the protruding portion. Have at the bottom.

  The film roll package of the battery packaging material according to the fifth aspect of the present invention is the film roll package according to the third aspect or the fourth aspect, wherein the first notch extends in the direction in which the shaft core extends. It penetrates the lower support member.

  The film roll package of the battery packaging material according to the sixth aspect of the present invention is the film roll package according to any of the first to fifth aspects, wherein the protective bag is a sheet having a metal layer. It is a bag to be formed.

The manufacturing method of the film roll package of the packaging material for batteries which concerns on the 7th viewpoint of this invention is equipped with the following steps (1)-(9).
(1) A film roll including an axis and a roll body made of a roll-shaped battery packaging sheet wound around the axis, wherein the battery packaging sheet has a metal layer. And a step of preparing a film roll, wherein the shaft core has a protruding portion protruding from an end surface of the roll body.
(2) The step of preparing the box which accommodates the said film roll which has an access port which can be opened and closed.
(3) A step of preparing a protective bag having a bag mouth.
(4) The step of accommodating the protective bag in the box with the bag mouth facing the access port.
(5) The step which prepares the lower side support member which has a 1st notch in upper part.
(6) The lower support member is accommodated in the protective bag through the bag mouth, and installed so as to stand on the bottom surface of the box with the protective bag interposed therebetween.
(7) The film roll is carried into the protective bag through the bag mouth, and the projecting portion is hooked on the first cutout so that the outer peripheral surface of the roll body is spaced from the bottom surface of the box by a certain distance. The film roll is supported by the lower support member so as to maintain
(8) Depressurizing the inside of the protective bag, and sealing the film roll and the lower support member in a state of supporting the film roll in the protective bag in a vacuum state.
(9) A step of closing the access port.

  According to the present invention, the film roll of the battery packaging sheet is accommodated in the protective bag and sealed in a vacuum state. At this time, not only the film roll but also the support member in a state of supporting the film roll is accommodated in the protective bag at the same time. The support member is a member that holds the protruding portion of the shaft core such that the outer peripheral surface of the roll body (roll-shaped battery packaging sheet) maintains a constant distance from the bottom surface of the box. As a result, compared with the case where only the film roll is protected by the protective bag (sheet), the possibility that the protective bag (sheet) is damaged by an external force during packaging or transportation is reduced. Accordingly, the moisture resistance of the film roll of the battery packaging material is improved.

The disassembled perspective view of the film roll package of the battery packaging material which concerns on one Embodiment of this invention. Sectional drawing of the packaging material sheet for batteries. The external view of the film roll packaged with the buffer sheet. The side view which shows the positional relationship of the film roll and support member in a packing state. Sectional drawing of the sheet | seat material which forms a protective bag. The figure which shows a mode that the film roll of the packaging material for batteries is packed. Another figure which shows a mode that the film roll of the packaging material for batteries is packed. The another figure which shows a mode that the film roll of the packaging material for batteries is packed. The another figure which shows a mode that the film roll of the packaging material for batteries is packed. The another figure which shows a mode that the film roll of the packaging material for batteries is packed. The another figure which shows a mode that the film roll of the packaging material for batteries is packed. The another figure which shows a mode that the film roll of the packaging material for batteries is packed.

  Hereinafter, a film roll package of a battery packaging material according to an embodiment of the present invention and a manufacturing method thereof will be described with reference to the drawings.

<1. Overall configuration>
FIG. 1 is an exploded perspective view of a film roll package 1 of a battery packaging material according to this embodiment. As shown in the figure, the film roll package 1 includes a film roll 10 of a battery packaging material and a box 20 for packing the film roll 10. In addition to the film roll 10, a support member 30 and a protective bag 40 for protecting the film roll 10 are also accommodated in the box 20. The support member 30 is a member for supporting the film roll 10 in the box 20 so that the film roll 10 is not damaged by receiving an external force. The protective bag 40 is a bag for sealing the film roll 10 together with the support member 30 in a vacuum state in order to protect the film roll 10 from moisture. The protective bag 40 is opaque as will be described later, and the film roll 10 and the support member 30 in the protective bag 40 are not visible in the original case in FIG. Is also shown by a solid line. Further, a pallet 8 is laid below the film roll package 1 so that the film roll package 1 can be conveyed by a forklift. Below, after demonstrating these members 10, 20, 30, and 40 which comprise the film roll package 1, the packing method is demonstrated in detail.

<2. Configuration of each part>
<2-1. Film roll>
The film roll 10 includes a shaft core 11 and a battery packaging sheet 12 wound around the shaft core 11 in a roll shape. Hereinafter, for convenience of explanation, the battery packaging sheet 12 wound in a roll shape (the shaft core 11 is not included) may be referred to as a roll body 12 using the same reference numerals as the battery packaging sheet. . The winding end portion of the battery packaging sheet 12 can be appropriately secured with a tape or the like so that the roll winding cannot be unwound.

  The shaft core 11 according to the present embodiment has a hollow structure and has a cylindrical shape. However, the cross-sectional shape of the shaft core 11 may be other shapes such as a quadrangle and a triangle. The material of the shaft core 11 is not particularly limited as long as it can withstand and support the weight of the film roll 10, but in this embodiment, it is an iron core. However, the shaft core 11 can be made of another metal, or can be made of hard paper or resin.

  The battery packaging sheet 12 is a sheet-like packaging material for sealing battery elements such as electrodes and electrolytes in a battery, and has a metal layer. The battery packaging sheet 12 may condense when placed in a high humidity environment, and is required to have moisture resistance during storage and transportation.

  In the present embodiment, the length L6 in the longitudinal direction of the shaft core 11 and the width W6 of the battery packaging sheet 12 along the direction orthogonal to the winding direction have a relationship of L6> W6. Accordingly, the shaft core 11 protrudes from both end faces 10 b and 10 b of the roll body 12. Below, the protrusion part from the end surface 10b of the roll main body 12 of the shaft core 11 is called the protrusion part 11a.

  The type of the battery packaging sheet 12 is not particularly limited. For example, the battery packaging sheet 12 is a laminate having a base layer 131, an adhesive layer 132, a metal foil layer 133, and a sealant layer 134 in this order as shown in FIG. Can do. In the battery packaging sheet 12 of this example, the base material layer 131 is the outermost layer, and the sealant layer 134 is the innermost layer.

  The battery packaging sheet 12 shown in FIG. 2 will be described. The base material layer 131 is a layer that functions as a base material for battery packaging materials. The material for forming the base material layer 131 is not particularly limited as long as it has insulating properties. Examples of the material for forming the base material layer 131 include polyester, polyamide, epoxy, acrylic, fluororesin, polyurethane, silicon resin, phenol, polyetherimide, polyimide, and a mixture or copolymer thereof. About the thickness of the base material layer 131, about 10-50 micrometers is mentioned, for example, Preferably about 15-30 micrometers is mentioned.

  The adhesive layer 132 is a layer disposed on the base material layer 131 in order to impart adhesion to the base material layer 131. About the thickness of the contact bonding layer 132, about 2-50 micrometers is mentioned, for example, Preferably about 3-25 micrometers is mentioned.

  In addition to improving the strength of the packaging material, the metal foil layer 133 is a layer that functions as a barrier layer for preventing water vapor, oxygen, light, and the like from entering the battery. The thickness of the metal foil layer 133 is preferably about 10 to 200 μm, more preferably about 20 to 100 μm, from the viewpoint of reducing the thickness of the packaging material and preventing pinholes from being formed even by molding. Specific examples of the metal forming the metal foil layer 133 include metal foils such as aluminum, stainless steel, and titanium.

  When the battery is assembled, the battery element 4 is hermetically sealed by bringing the sealant layers 134 into contact with each other and thermally welding them. Although it does not restrict | limit especially as thickness of the sealant layer 134, About 2-2000 micrometers, Preferably it is about 5-1000 micrometers, More preferably, about 10-500 micrometers is mentioned. The resin component used for the sealant layer 134 is not particularly limited as long as it can be thermally welded, and examples thereof include polyolefin, cyclic polyolefin, carboxylic acid-modified polyolefin, and carboxylic acid-modified cyclic polyolefin.

  In the present embodiment, the film roll 10 is covered from the outside with a buffer sheet 13 as shown in FIG. 3 (however, omitted in FIGS. 1 and 6 to 12). The buffer sheet 13 is a cushion material for absorbing shock, and is a sheet material made of styrene in this embodiment. The buffer sheet 13 has a generally rectangular shape before packaging, and first, the outer peripheral surface 10a of the film roll 10 is wound at least once to be formed into a cylindrical shape. Then, packaging is completed by appropriately folding down the portions of the cylindrical buffer sheet 13 protruding from the end faces 10b, 10b along the direction in which the axis 11 of the film roll 10 extends, toward the end faces 10b, 10b. . In order to prevent the cushion sheet 13 from being unpacked, it is preferable to fix it with a tape 15 or the like as appropriate.

<2-2. Box>
The box 20 is a box for storing the film roll 10. The material of the box 20 is not particularly limited, but in the present embodiment, it is made of paper, more specifically, made of corrugated cardboard. Preferably, a triwall pack which is a reinforced corrugated cardboard made by Triwall Japan Co., Ltd. can be used. The shape of the box 20 is not particularly limited, but in the present embodiment, it has a rectangular parallelepiped shape as described below.

  The box 20 has a sleeve 21, a lower tray 22, and an upper cap 23. The sleeve 21 is a rectangular tube-shaped frame, and forms the four side surfaces 21 a to 21 d of the box 20. The lower tray 22 has a plate-like member 22a having substantially the same size as the cross-sectional shape of the sleeve 21, and a short side wall portion 22b standing up from the outer peripheral edge of the plate-like member 22a over the entire circumferential direction. The sleeve 21 can be received inside in such a manner that the lower outer surface of the sleeve 21 and the inner surface of the side wall portion 22b face each other. The upper cap 23 has the same shape as the lower tray 22, and both can be used interchangeably by inverting them upside down. That is, the upper cap 23 includes a plate-like member 23a having substantially the same size as the cross-sectional shape of the sleeve 21, and a short side wall 23b extending downward from the outer peripheral edge of the plate-like member 23a over the entire circumferential direction. The sleeve 21 can be received inside in such a manner that the upper outer surface of the sleeve 21 and the inner surface of the side wall portion 23b face each other. The box 20 is assembled by arranging these members 21 to 23 so as to receive the sleeve 21 in the lower tray 22 and the upper cap 23. Further, after the sleeve 21 is placed on the lower tray 22 and before being covered with the upper cap 23, an access port 25 into the box 20 is formed above.

  In the present embodiment, the size of the sleeve 21 is a width W1 = 1060 mm, a depth D1 = 820 mm, and a height H1 = 800 mm. The lower tray 22 and the upper cap 23 both have a width W2 = 1090 mm, a depth D2 = 850 mm, and a height H2 = 150 mm.

<2-3. Support member>
The support member 30 has a pair of left and right lower pads 31, 31 and a pair of left and right upper pads 32, 32. The material of these pads 31 and 32 is not particularly limited, but in the present embodiment, it is made of paper, more specifically, made of cardboard, and preferably a triwall pack made of reinforced cardboard made by Triwall Japan Co., Ltd. is used. it can.

  The lower pad 31 has a rectangular plate shape, and is housed upright in the box 20 so that the width W3 direction of the lower pad 31 is parallel to the depth D1 direction of the sleeve 21. More specifically, the pair of lower pads 31 and 31 are installed in the box 20 so that one faces one of the side portions 21a and 21c of the sleeve 21 and the other faces the other side portion. Is done. The side surface portions 21a and 21c are side surface portions that define the depth D1 direction of the sleeve 21. As will be described later, the lower pad 31 stands on the lower tray 22 with the protective bag 40 interposed therebetween. The width W3 of the lower pad 31 is formed to a size such that when the lower pad 31 is accommodated in the box 20 in the above-described manner, it can hardly move in the direction of the depth D1 in the box 20. In the present embodiment, the lower pads 31 and 31 have the same shape, and have a width W3 = 750 mm and a height H3 = 375 mm.

  A notch 31 a is formed in the upper center of the lower pad 31. This notch 31a penetrates the lower pad 31 in the thickness direction. Further, the notch 31 a has a substantially semicircular shape, and is approximately the same size as the lower half of the cross-sectional shape of the shaft core 11 of the film roll 10. Accordingly, the pair of lower pads 31 and 31 can receive and hold the lower portions of the protruding portions 11a and 11a of the shaft core 11 of the film roll 10 from below by the pair of notches 31a and 31a. FIG. 4 is a side view showing the positional relationship between the film roll 10 and the support member 30 in a state where the film roll 10 is supported by the support member 30. As shown in the figure, in the lower pad 31, the distance from the lowermost end of the notch 31a to the lower end of the lower pad 31 is L1, and in the film roll 10, the outer periphery of the film roll 10 along the radial direction from the lower end of the protruding portion 11a. When the distance to the surface 10a is L2, L1> L2. Therefore, in a state where the lower pads 31, 31 hold the protruding portions 11 a, 11 a, the outer peripheral surface 10 a of the roll body 12 keeps a constant distance (L 1 -L 2) from the lower tray 22 of the box 20.

  On the other hand, the upper pad 32 also has a rectangular plate shape, and is housed upright in the box 20 so that the width W4 direction of the upper pad 32 is parallel to the depth D1 direction of the sleeve 21. More specifically, the upper pads 32 and 32 are arranged so as to be adjacent to each other above the lower pad 31. Accordingly, the pair of upper pads 32 and 32 are similar to the lower pads 31 and 31 in the box 20 so that one faces one of the side portions 21a and 21c and the other faces the other side portion. Installed. The width W4 of the upper pad 32 is formed in such a size that the upper pad 32 can hardly move in the depth D1 direction within the box 20 when the upper pad 32 is accommodated in the box 20 in the above-described manner. Further, the height H4 of the upper pad 32 is formed so as to be approximately H1 = H3 + H4. Thereby, the movement amount of the lower pad 31 and the upper pad 32 is limited both in the height H1 direction and in the depth D1 direction due to the mutual positional relationship. As a result, the upper pad 32 together with the lower pad 31 regulates the movement of the film roll 10 in the box 20 in the height H1 direction and the depth D1 direction. In the present embodiment, the upper pads 32 and 32 have the same shape.

  A notch 32 a is formed in the lower center of the upper pad 32. The notch 32a penetrates the upper pad 32 in the thickness direction. Further, the notch 32 a has a substantially semicircular shape and is approximately the same size as the upper half of the cross-sectional shape of the shaft core 11 of the film roll 10. Accordingly, the pair of upper pads 32 and 32 can receive the upper portions of the protruding portions 11a and 11a of the shaft core 11 of the film roll 10 from above by the pair of notches 32a and 32a. As shown in FIG. 4, in the upper pad 32, the distance from the uppermost end of the notch 32a to the upper end of the upper pad 32 is L3, and in the film roll 10, the outer periphery of the film roll 10 along the radial direction from the upper end of the protruding portion 11a. When the distance to the surface 10a is L4, L3> L4. Therefore, in a state where the support member 30 holds the protruding portions 11 a and 11 a, the outer peripheral surface 10 a of the roll body 12 maintains a constant distance (L 3 -L 4) from the upper cap 23 of the box 20.

  In the present embodiment, the upper pad 32 and the lower pad 31 also have the same shape, and have a width W4 = 750 mm and a height H4 = 375 mm. Thereby, these four pads 31, 31, 32, 32 can be used interchangeably.

  The widths W3 and W4 of the lower pad 31 and the upper pad 32 and the radius R1 of the roll body 12 satisfy the relationship of W3> 2 · R1 and W4> 2 · R1. Therefore, the outer peripheral surface 10a of the roll main body 12 and the side surface portions 21b and 21d of the box 20 are also maintained at a constant interval.

<2-4. Protective bag>
The protective bag 40 is a bag that accommodates the film roll 10 together with the support member 30 in a state of supporting the film roll 10, and has a bag mouth 41 at the top. The protective bag 40 is formed from a sheet material of a water shielding material having moisture resistance. The material of the protective bag 40 is not particularly limited, but as the sheet material forming the protective bag 40, it is preferable to use a barrier material having a water vapor barrier property of 0.2 g / m ² or less per hour. In addition, the protective bag 40 is sealed and decompressed to a vacuum state after accommodating the film roll 10 and the support member 30 as described later, but the humidity in the protective bag 40 at this time is 50% to 60%, Preferably, it is preferably maintained at about 40% to 50%.

  The protective bag 40 of this embodiment is formed of an aluminum laminate film. More specifically, the sheet material forming the protective bag 40 has a multilayer structure having a polyethylene terephthalate (PET) layer 40a, an aluminum layer 40b, and a polyethylene (PE) layer 40c as shown in FIG. ing. The protective bag 40 is formed so that the PE layer 40c is on the inside of the bag and the PET layer 40a is on the outside of the bag. The sheet material of the protective bag 40 is manufactured by depositing aluminum on a PET sheet and then forming a PE layer 40c on the aluminum layer 40b so that the aluminum layer 40b is not peeled off. In this embodiment, an aluminum vapor-deposited sheet is used from the viewpoint of lightweight, but other metal vapor-deposited sheets can be used as a matter of course.

<3. Packing method>
Next, the packaging method of the film roll 10, ie, the manufacturing method of the film roll package 1, will be described with reference to FIGS.

  First, the film roll 10, the box 20, the support member 30, the protective bag 40, and the pallet 8 are prepared for starting the packing operation. The pallet 8 may be a wooden pallet or a metal pallet, and the material is not particularly limited. The same applies to the shape of the pallet 8. That is, as the pallet 8, a pallet 8 that can withstand the weight of the finally completed film roll package 1 and that is suitable for transporting the film roll package 1 is appropriately prepared.

  Next, the pallet 8 is placed on a flat ground or a work table. Then, the lower tray 22 is further placed on the pallet 8, and the sleeve 21 is fitted from above the pallet 8, and a box (hereinafter referred to as a box 20a) having an access port 25 opened at the upper part is assembled (see FIG. 6).

  Subsequently, the protective bag 40 is set in the box 20a through the access port 25 (see FIG. 7). Thereafter, various operations are performed in the protective bag 40 through the bag mouth 41, so that the bag mouth 41 faces the access port 25, that is, the bag mouth 41 faces upward. The protective bag 40 is set.

  Subsequently, the lower pads 31 and 31 are set in the protective bag 40 in the box 20a through the bag mouth 41 (see FIG. 8). As described above, the lower pads 31 and 31 are set upright in the protective bag 40 so that the notches 31a and 31a face upward. At this time, one lower pad 31 faces the side surface portion 21a of the sleeve 21 with the protective bag 40 interposed therebetween, and the other lower pad 31 faces the side surface portion 21c of the sleeve 21 with the protective bag 40 interposed therebetween. It arrange | positions so that it may face adjacent. For convenience of explanation, in FIG. 8, a portion of the lower pad 31, 31 that is not originally visible is indicated by a dotted line, and a portion of the sleeve 21 that is not originally visible is indicated by a one-dot chain line. The same applies to FIGS. 9 and 10.

  Next, the film roll 10 is carried into the protective bag 40 through the bag port 41. At this time, since the film roll 10 according to the present embodiment is a large size and is made of a sheet having a metal layer and is very heavy, a transport machine such as a crane or a forklift is used. More specifically, a sling belt is passed through the shaft core 11 of the film roll 10, and both ends of the sling belt are fixed to a transport machine, so that the film roll 10 is suspended. At this time, the transport machine comes into contact with the protruding portions 11 a and 11 a on both sides of the film roll 10. In addition, the aspect which conveys the film roll 10 using a conveyance machine is not limited to this, For example, you may hold | grip by hooking a hook etc. on the protrusion parts 11a and 11a.

  Thereafter, the projecting portions 11a and 11a of the shaft core 11 of the film roll 10 in the suspended state are manually aligned with the notches 31a and 31a of the lower pads 31 and 31 respectively, and then from within the shaft core 11 Pull out the sling belt. Thus, the projecting portions 11a and 11a are fitted into the notches 31a and 31a and hooked, and the film roll 10 is supported by the lower pads 31 and 31 (see FIG. 9). At this time, as described above, the outer peripheral surface 10a of the film roll 10 is spaced apart from the lower tray 22 and the side surface portions 21b and 21d of the box 20a and is not in contact therewith. For convenience of explanation, in FIG. 9, a portion of the film roll 10 that cannot be seen is shown by a dotted line finer than the lower pads 31 and 31. The same applies to FIG.

  After the film roll 10 is set, the upper pads 32 and 32 are set up on the lower pads 31 and 31, respectively (see FIG. 10). At this time, the notches 32a and 32a of the upper pads 32 and 32 are directed downward, and the protruding portions 11a and 11a of the shaft core 11 of the film roll 10 are inserted into the notches 32a and 32a. For convenience of explanation, in FIG. 10, the portions of the upper pads 32, 32 that are not originally visible are indicated by the same dotted lines as the lower pads 31, 31.

  In the present embodiment, the length L6 of the shaft core 11 is approximately equal to the width of the internal space of the sleeve 21. Therefore, the film roll 10 is prevented from greatly moving in the width direction in the box 20. Further, according to this configuration, the lower pads 31 and 31 and the upper pads 32 and 32 are sandwiched between the side surface portions 21a and 21c and the end surfaces 10b and 10b of the roll body 12 in the box 20 and may fall over. Has been reduced.

  Subsequently, the bag mouth 41 is closed, and the inside of the protective bag 40 is decompressed using a vacuum pump to form a vacuum state. Thereby, the protective bag 40 deform | transforms and sticks to the outer surface of the film roll 10 and the supporting member 30 (refer FIG. 11). And after making the protective bag 40 into a vacuum pack in this way, the upper cap 23 is put on the box 20a, and the access port 25 is closed (see FIG. 12). Thereafter, as shown in FIG. 12, it is preferable to fix the box 20 with a belt 28 as appropriate so that the box 20 does not open unintentionally. At this time, it is preferable to wind the belt 28 so that the box 20 and the pallet 8 are integrated.

  Thus, the film roll package 1 is completed. The above operations can be performed manually except for operations using a transport machine or a vacuum pump.

<4. Modification>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning. For example, the following changes can be made. In addition, the gist of the following modifications can be combined as appropriate.

<4-1>
In the above-described embodiment, the support member 30 is a member divided into upper and lower parts, but these may be integrated. Further, the upper pad 32 may be omitted, and at this time, the notch 31a of the lower pad 31 may be sized to receive the entire protruding portion 11a. Further, the notch 32a may be omitted from the upper pad 32, and the notch 31a of the lower pad 31 may be sized to receive the entire protruding portion 11a.

<4-2>
In the said embodiment, the notches 31a and 32a of the lower pad 31 and the upper pad 32 penetrated the said pad in the thickness direction. However, at least one of the lower pads 31 and 31 and the upper pads 32 and 32 may have a shape having a wall that covers the opening of the protruding portion 11a of the shaft core 11 outside the notches 31a and 32a. In this case, the size of the film roll package 1 is increased by the thickness of the wall, but the weight of the film roll 10 can be received through the wall, and the strength of the box 20 is increased.

DESCRIPTION OF SYMBOLS 1 Film roll package 10 Film roll 10a Outer peripheral surface 10b End surface 11 Shaft core 11a Protrusion part 12 Battery packaging sheet (roll main body)
133 Metal foil layer (metal layer)
20 Box 22 Lower tray (bottom of box)
23 Top cap (top of box)
25 Access port 30 Support member 31 Lower pad (lower support member)
31a Notch (first notch)
32 Upper pad (upper support member)
32a cutout (second cutout)
40 Protective bag 40b Aluminum layer (metal layer)
41 bag mouth

Claims (7)

A film roll including a shaft core and a roll body formed of a roll-shaped battery packaging sheet wound around the shaft core, the battery packaging sheet having a metal layer, The shaft core has a projecting portion projecting from the end surface of the roll body, and a film roll,
A box for storing the film roll;
A support member that is installed in the box and supports the film roll so that the outer peripheral surface of the roll main body maintains a certain distance from the bottom surface of the box by holding the protrusion.
A protective bag that is housed in the box and seals the film roll and the support member in a state of supporting the film roll in a vacuum state;
Battery roll packaging for battery packaging. The support member supports the film roll so that the outer peripheral surface of the roll body maintains a certain distance from the upper surface of the box.
The film roll package of the battery packaging material according to claim 1. The support member is
A lower side that has a first cutout at an upper portion that stands up on the bottom surface of the box and receives the protrusion from below so as to restrict the downward movement of the film roll in the box A support member;
An upper support member that is disposed adjacent to the lower support member and regulates the upward movement of the film roll in the box.
The film roll package of the packaging material for batteries of Claim 1 or 2. The upper support member has a second notch in the lower part for receiving the upper part of the protruding part,
The film roll package of the battery packaging material according to claim 3. The first cutout penetrates the lower support member in a direction in which the shaft core extends.
The film roll package of the packaging material for batteries of Claim 3 or 4. The protective bag is a bag formed from a sheet having a metal layer.
The film roll package of the packaging material for batteries in any one of Claim 1 to 5. A method of manufacturing a film roll package,
A film roll including a shaft core and a roll body formed of a roll-shaped battery packaging sheet wound around the shaft core, the battery packaging sheet having a metal layer, The shaft core has a protruding portion protruding from the end face of the roll body, and a step of preparing a film roll;
Preparing a box for storing the film roll having an openable / closable access port;
Providing a protective bag having a bag mouth;
Storing the protective bag in the box with the bag mouth facing the access port side;
Providing a lower support member having a first cutout at the top;
The lower support member is accommodated in the protective bag through the bag mouth, and installed to stand on the bottom surface of the box with the protective bag interposed therebetween;
The film roll is carried into the protective bag through the bag mouth, and the projecting portion is hooked on the first notch so that the outer peripheral surface of the roll body maintains a constant distance from the bottom surface of the box. Supporting the film roll by the lower support member;
Depressurizing the inside of the protective bag, and sealing the lower support member in a state of supporting the film roll and the film roll in the protective bag in a vacuum state;
Closing the access port;
The manufacturing method of the film roll package of the packaging material for batteries.