Housing member and method for manufacturing housing member

Abstract

[Problem] To provide a housing member capable of achieving space saving. [Solution] The present invention relates to a housing member characterized by comprising at least a first housing part and a second housing part that are adjacent to each other, the housing member being characterized in that: the first housing part and the second housing part have a first fusion member and a second fusion member that face each other, a first non-fusion member disposed between the first fusion member and the second fusion member, and a second non-fusion member; the first non-fusion member has a horizontally U-shaped cross section in a second direction that is a height direction orthogonal to a first direction that is the longitudinal direction; and the second non-fusion member has a second-direction cross section that is horizontally U-shaped toward the same direction as the direction of the cross section of the first non-fusion member.

Description

Storage member and method for manufacturing the storage member

[0001] The present invention relates to a housing member for housing cables, tubes, and support members (hereinafter referred to as "cables") and a manufacturing method thereof. More specifically, the present invention relates to a housing member for protecting cables used in continuously moving objects such as machine tools, electronic devices, industrial robots, and transport machines.

[0002] In continuous moving objects that involve sliding, bending, etc., such as machine tools, electronic devices, industrial robots, and transport machinery, cables (flexible cables and hoses such as electric cables, fiber optic cables, and fluid supply hoses) can be damaged by twisting, friction between cables, and tensile and bending forces applied to the cables as the continuous moving object moves. Therefore, there is a need for a housing member that can protect cables and prevent damage to them by stably supporting them.

[0003] 1 and 2, a conventional storage member includes a flexible sleeve 120 having one or more insertion holes into which cables 110 are respectively inserted, and this flexible sleeve 120 is typically made of a polymeric material to achieve flexibility, and an upper fusion sheet layer 130 and a lower fusion sheet layer 140 that make up the flexible sleeve 120 are partially joined to form one or more pods (insertion holes) 110. As will be described in detail later, conventional storage members have had the problem that the connection between the upper fusion sheet layer 130 and the lower fusion sheet layer 140 must be bonded at a certain width.

[0004] In contrast, in recent years, there has been a strong demand for space-saving in the above-mentioned continuous moving bodies, and if the layout is not possible due to the large width of the flexible sleeve, it is necessary to reduce the number of insertion holes and shorten the length in the width direction, and the cables that were originally intended to be inserted into these insertion holes must be inserted into another flexible sleeve, and multiple flexible sleeves must be arranged by stacking them in the height direction. Multiple flexible sleeves arranged in this way not only have the risk of being damaged by friction due to sliding and other movements, but also have the risk of impairing stable operation due to friction, etc., despite the need for synchronized movement, which significantly impairs quality stability.

[0005] Therefore, there has been a demand for a housing member that can protect cables used in continuously moving objects such as machine tools, electronic devices, industrial robots, and transport machines, and can prevent damage to the cables by supporting them more stably, while also being space-saving, highly durable, and highly reliable, and ultimately preventing process errors and damage to cables due to dust.

[0006] The present invention aims to provide a storage member that can protect cables used in moving objects such as machine tools, electronic devices, industrial robots, and transport machines, and can prevent damage to the cables by supporting them more stably, thereby enabling space savings.

[0007] In order to solve the above problem, the present invention provides a storage member comprising at least adjacent first and second storage sections, the first and second storage sections having a first fusion member and a second fusion member facing each other, and a first non-fusion member and a second non-fusion member arranged between the first fusion member and the second fusion member, the first non-fusion member having a cross section in a second direction, which is a height direction perpendicular to a first direction, which is a longitudinal direction, that is, a horizontal U-shaped cross section, and the second non-fusion member having a cross section in the second direction that is a horizontal U-shaped cross section facing in the same direction as the first non-fusion member.

[0008] 1A and 1B are overall perspective views schematically illustrating a conventional continuous moving body; (a) is a perspective view schematically illustrating a conventional housing member, and (b) is a cross-section diagram of the conventional housing member; and (b) is a diagram schematically illustrating a state prior to completion by heat treatment to explain the configuration of the conventional technology; (a) is a perspective view schematically illustrating a housing member according to a first embodiment, and (b) is a cross-section diagram of the housing member according to the first embodiment; and (b) is a diagram schematically illustrating a state prior to completion by heat treatment to explain the configuration of the first embodiment; (a) is a perspective view schematically illustrating a housing member according to a second embodiment, and (b) is a cross-section diagram of the housing member according to the second embodiment; and (b) is a diagram schematically illustrating a state prior to completion by heat treatment to explain the configuration of the second embodiment; (a) is a perspective view schematically illustrating a housing member according to a third embodiment, and (b) is a cross-section diagram of the housing member according to the third embodiment; Fig. 10 is a diagram schematically illustrating a state prior to completion by heat treatment, in order to explain the configuration of a third embodiment. Fig. 11 is a flow diagram for explaining a manufacturing method of a housing member according to the present invention. Fig. 12 is a diagram for schematically explaining a manufacturing apparatus for a housing member according to the present invention. Fig. 13 is a diagram schematically illustrating a long body protection and guiding device according to the present invention.

[0009] Preferred embodiments of the present invention will be described in detail below. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the examples presented herein are provided so that the disclosure will be thorough and complete, and will fully convey the concept of the present invention to those skilled in the art. The same reference numerals refer to the same elements throughout the specification.

[0010] The present invention may be modified in various ways and may have various forms, and examples will be described in detail herein. However, this is not intended to limit the present invention to the specific disclosed forms, but rather to include all modifications, equivalents, and alternatives falling within the scope of the technical spirit and technology of the present invention. Similar reference numerals are used throughout the drawings to refer to similar components. Terms such as "first," "second," etc. may be used to describe various components, but these components should not be limited by these terms. These terms are used only to distinguish one component from another. The terms used in this application are used solely to describe specific embodiments and are not intended to limit the present invention. The singular expressions include the plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise," "comprise," and "are" are intended to specify the presence of a feature, numeral, step, operation, component, part, or combination thereof described in the specification, but should not be understood to preclude the presence or addition of one or more other features, numerals, steps, operations, components, parts, or combinations thereof.

[0011] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms as defined in commonly used dictionaries should be interpreted to have a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this application.

[0012] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same component numbers refer to the same elements regardless of the drawing. Duplicate explanations will be omitted in the examples. Furthermore, although the following describes embodiments and examples, the present invention is not limited to these and may be any other invention based on the above technical idea.

[0013] First, to clarify the differences from the present invention, the prior art will be described. Figures 1 to 3 are diagrams for conceptually explaining a conventional housing member. Figure 1 is a perspective view of the appearance of a continuous moving body in a state where multiple housing members are stacked in multiple stages and cables are inserted through them. Figure 2(a) is a perspective view showing a schematic appearance of the housing part, and Figure 2(b) is a cross-sectional view showing a schematic cross section of the housing member.

[0014] As shown in Figures 1 and 2, a conventional continuous moving body 100 includes a flexible sleeve (housing member) 120 including insertion passages 110a (three in Figure 2(b)) through which cables 110 (not shown in Figure 2(b)) are inserted. Note that Figure 1 shows three flexible sleeves stacked in multiple layers, and Figure 2(b) shows only one of them. The flexible sleeve 120 includes an upper fusion sheet layer 130, a lower fusion sheet layer 140, and insertion hole forming members 150a, 150b (three in Figure 2(b)) sandwiched between the fusion sheet layers 130, 140.

[0015] As shown in Fig. 2(b), the upper fusion sheet layer 130 and the lower fusion sheet layer 140 are each sheet-like, extending in a longitudinal direction (front-to-back direction in Fig. 2(b)), which is a first direction, having a predetermined thickness in a height direction (up-and-down direction in Fig. 2(b)), which is a second direction, and having a predetermined width in a width direction (left-to-right direction in Fig. 2(b)). The upper fusion sheet layer 130 and the lower fusion sheet layer 140 are each made of a material (e.g., polyurethane) that can be bonded to each other by heat treatment, and face each other in the height direction (up-and-down direction in Fig. 2(b)).

[0016] Furthermore, the through-hole forming members 150a, 150b each extend in the longitudinal direction and are tape-like and made of a material that can be bonded to the above-mentioned fusion sheet layers 130, 140 by heat treatment, but cannot be bonded to each other even by heat treatment, and two pieces of the same material that form a pair in the vertical direction face each other.

[0017] 3 is a cross-sectional view illustrating the state of the housing member 100 having the above-described configuration, showing a schematic state prior to completion by heat treatment. When the housing member 100 is pressed from the height direction by heat treatment from the state shown in the figure, the opposing fusion sheet layers 130, 140 and the opposing fusion sheet layers 130, 140 and the through-hole forming members 150a, 150b are bonded together, but the opposing through-hole forming members 150a, 150b are not bonded together. As a result, an insertion hole 110a through which a cable or the like can be inserted is formed between the portions of the through-hole forming members 150a, 150b.

[0018] However, in such a configuration, in order to ensure the durability of the flexible sleeve (housing member) 120, it is necessary to ensure that the adhesive portions 135 (see FIG. 2(b)) between the fused sheet layers 130, 140 have a certain width (see the distance between the dashed lines in FIG. 3). As the number of insertion holes increases, the number and width of the adhesive portions 135 also increase, which hinders space saving.

[0019] An embodiment of the present invention that solves the above-mentioned problem will now be described. Fig. 4 is a diagram schematically illustrating a first embodiment of the present invention, and corresponds to Fig. 2 described above. As shown in Fig. 4, a flexible sleeve (housing member) 200 according to the first embodiment has insertion holes (three in the figure) 290 into which cables or the like are respectively inserted. The flexible sleeve (housing member) 200 has housing sections that form insertion holes 290a, 290b, and 290c, which are continuously arranged in parallel in the width direction (the left-right direction in the figure), and in this embodiment has a first housing section 210a, a second housing section 210b, and a third housing section 210c.

[0020] The flexible sleeve 200 includes an upper fusion sheet layer 220, a lower fusion sheet layer 230, and an insertion hole forming member 240 sandwiched between the fusion sheet layers 220, 230.

[0021] As shown in Fig. 4(b), the upper fusion sheet layer 220 and the lower fusion sheet layer 230 are each sheet-like, extending in a longitudinal direction (front-to-back direction in Fig. 4(b)), which is a first direction, having a predetermined thickness in a height direction (up-and-down direction in Fig. 4(b)), which is a second direction, and having a predetermined width in a width direction (left-to-right direction in Fig. 4(b)). The upper fusion sheet layer 220 and the lower fusion sheet layer 230 are each made of a material (e.g., polyurethane) that can be bonded to each other by heat treatment, and face each other in the height direction.

[0022] The through-hole forming member 240 is provided with a plurality of tape members (first non-fusible member 245a, second non-fusible member 245b, third non-fusible member 245c) corresponding to the number of through-holes to be formed (three in this embodiment). These tape members 245a, 245b, 245c are made of a material (for example, expanded polytetrafluoroethylene (hereinafter referred to as "ePTFE")) that can be bonded to the above-mentioned fusible sheet layers 220, 230 by heat treatment but cannot be bonded to each other even by heat treatment.

[0023] Each of the tape members 245a, 245b, and 245c is bent and arranged so that its cross section is horizontally U-shaped (see FIG. 5, which will be described later). The parallel tape members 245 are closer to each other in the width direction at a shorter distance than in the prior art (see the dashed line in FIG. 5).

[0024] 5 is a cross-sectional view illustrating the flexible sleeve (housing member) 200 having the above-described configuration, showing a schematic state prior to completion by heat treatment. When the flexible sleeve (housing member) 200 is pressed from the height direction by heat treatment from the state shown in the figure, the opposing fusion sheet layers 220, 230 and the opposing fusion sheet layers 220, 230 and the tape members 245 are bonded together, but the tape members 245 are not bonded together. This forms an insertion hole 290 through which a cable or the like can be inserted between the tape members 245.

[0025] According to the first embodiment having the above configuration, unlike the prior art, it is possible to form the insertion holes 290 for each single tape member 245 .

[0026] Furthermore, in this embodiment, because the through-holes are formed using a single tape member 245, not only is there no need to prepare a pair of tape members to form the through-holes as in the past, but yield problems caused by misalignment of the pair of tape members can also be avoided. Specifically, in the prior art, the through-holes would not have the desired shape unless the pair of through-hole-forming members of the same size were positioned without misalignment in the height, width, and length directions, resulting in a lack of quality stability. In contrast, in this embodiment, the through-holes are formed by bending the single tape member 245 into a U-shape, thereby improving quality stability.

[0027] Next, a second embodiment of the present invention will be described below with reference to Fig. 6, which is a diagram showing a schematic diagram of the second embodiment of the present invention and corresponds to Fig. 2 described above.

[0028] 6, a flexible sleeve (housing member) 300 according to the second embodiment has insertion holes 390 (three in the figure) into which cables or the like are respectively inserted. Flexible sleeve (housing member) 300 has housing sections forming insertion holes 390a, 390b, and 390c that are continuously arranged in parallel in the width direction (the left-right direction in the figure), and in this embodiment has first housing section 310a, second housing section 310b, and third housing section 310c.

[0029] The flexible sleeve 300 also includes an upper fusion sheet layer 320, a lower fusion sheet layer 330, and an insertion hole forming member 340 sandwiched between the fusion sheet layers 320, 330.

[0030] As shown in Fig. 6(b), the upper fusion sheet layer 320 and the lower fusion sheet layer 330 are each sheet-like, extending in a longitudinal direction (front-to-back direction in Fig. 6(b)), which is a first direction, having a predetermined thickness in a height direction (up-and-down direction in Fig. 6(b)), which is a second direction, and having a predetermined width in a width direction (left-to-right direction in Fig. 6(b)). The upper fusion sheet layer 320 and the lower fusion sheet layer 330 are each made of a material (e.g., polyurethane) that can be bonded to each other by heat treatment, and face each other in the height direction.

[0031] The through-hole forming member 340 is provided with a plurality of tape members (first non-fusible member 345a, second non-fusible member 345b, third non-fusible member 345c) corresponding to the number of through-holes to be formed (three in this embodiment). These tape members 345a, 345b, 345c are made of a material (e.g., polytetrafluoroethylene (hereinafter referred to as "PTFE")) that can be bonded to the above-mentioned fusible sheet layers 320, 330 by heat treatment, but that cannot be bonded to each other even by heat treatment.

[0032] Each of the tape members 345a, 345b, and 345c is bent and arranged so that its cross section is horizontally U-shaped (see FIG. 5, which will be described later). The parallel tape members 345 (e.g., 345b) are arranged such that one end and the other end of the horizontal U-shaped cross section coincide with the end of the curved portion of the horizontal U-shaped cross section of the adjacent tape member (e.g., 345a) (see the dashed line in FIG. 7).

[0033] 7 is a cross-sectional view illustrating the flexible sleeve (housing member) 300 of the above-described configuration, showing a schematic state prior to completion by heat treatment. When the flexible sleeve (housing member) 300 is pressed from the height direction by heat treatment from the state shown in the figure, the opposing fusion sheet layers 320, 330 are bonded to each other, and the opposing fusion sheet layers 320, 330 are bonded to the base sheet member 341 and the tape member 345, but the opposing base sheet member 341 and the tape member 345 are not bonded to each other. This forms an insertion hole 390 through which a cable or the like can be inserted between the base sheet member 341 and the tape member 345.

[0034] According to the first embodiment having the above configuration, unlike the prior art, it is possible to form a through hole 290 for each single tape member 245. The through holes 390 thus formed are arranged such that the positions of one end and the other end of the horizontal U-shaped cross section of the tape member 345 coincide with the positions of the ends of the curved portion of the horizontal U-shaped cross section of the adjacent tape member, so that it is possible to eliminate the adhesive portion between the fusion sheets that is conventionally provided between the storage portions, and the width can be reduced to an even shorter width than in the first embodiment, thereby reducing the overall width of the flexible sleeve (storage member) 300 and achieving space savings.

[0035] Furthermore, in this embodiment, because the insertion holes are formed using a single tape member 345, not only is there no need to prepare a pair of tape members to form the insertion holes as in the past, but it is also possible to avoid yield problems caused by misalignment of the pair of tape members. Specifically, in the prior art, the insertion holes would not have the desired shape unless the pair of same-sized insertion hole-forming members was positioned without misalignment in the height, width, and length directions, resulting in a lack of quality stability. In contrast, in this embodiment, the insertion holes are formed by bending the single tape member 245 into a U-shape, thereby improving quality stability.

[0036] Next, a third embodiment of the present invention will be described below. Fig. 8 is a diagram schematically showing the third embodiment of the present invention, and corresponds to Fig. 2 described above.

[0037] 8, a flexible sleeve (housing member) 400 according to the third embodiment has insertion holes 490 (three in the figure) into which cables or the like are respectively inserted. The flexible sleeve (housing member) 400 has housing sections that form insertion holes 490a, 490b, and 490c that are continuously arranged in parallel in the width direction (the left-right direction in the figure), and in this embodiment has a first housing section 410a, a second housing section 410b, and a third housing section 410c.

[0038] The flexible sleeve 400 also includes an upper fusion sheet layer 420, a lower fusion sheet layer 430, and an insertion hole forming member 440 sandwiched between the fusion sheet layers 420, 430.

[0039] As shown in Fig. 8(b), the upper fusion sheet layer 420 and the lower fusion sheet layer 430 are each sheet-like, extending in the longitudinal direction (front-to-back direction in Fig. 8(b)), which is a first direction, having a predetermined thickness in the height direction (up-and-down direction in Fig. 8(b)), which is a second direction, and having a predetermined width in the width direction (left-to-right direction in Fig. 8(b)). The upper fusion sheet layer 420 and the lower fusion sheet layer 430 are each made of a material (e.g., polyurethane) that can be bonded to each other by heat treatment, and face each other in the height direction.

[0040] The through-hole forming member 440 is provided with a plurality of tape members (a first non-fusible member 445a, a second non-fusible member 445b, and a third non-fusible member 445c) corresponding to the number of through-holes to be formed (three in this embodiment). These tape members 445a, 445b, and 445c are made of a material (such as polytetrafluoroethylene (hereinafter referred to as "PTFE")) that can be bonded to the above-mentioned fusible sheet layers 420 and 430 by heat treatment, but that cannot be bonded to each other even by heat treatment.

[0041] Each of the tape members 445a, 445b, and 445c is bent and arranged so that its cross section is a horizontal U-shape (see FIG. 9, which will be described later). One end and the other end of the parallel-arranged tape member 445 (e.g., 445b) extend beyond the ends of the curved portion of the horizontal U-shaped cross section of the adjacent tape member (e.g., 445a), overlapping the curved portion of the other tape member (see the dashed line in FIG. 9).

[0042] 9 is a cross-sectional view illustrating the flexible sleeve (housing member) 400 having the above-described configuration, schematically showing a state prior to completion by heat treatment. When the flexible sleeve (housing member) 400 is pressed from the height direction by heat treatment from the state shown in the figure, the opposing fusion sheet layers 420, 430 are bonded to each other, and the opposing fusion sheet layers 420, 430 are bonded to the base sheet member 441 and the tape member 445, but the opposing base sheet member 441 and the tape member 445 are not bonded to each other. This forms an insertion hole 490 through which a cable or the like can be inserted between the base sheet member 441 and the tape member 445.

[0043] According to the first embodiment having the above configuration, unlike the prior art, it is possible to form the insertion hole 490 for each single tape member 445 .

[0044] Furthermore, the adhesive portions between the fused sheets that were previously provided between the storage portions can be eliminated, and the width can be reduced to an even shorter width than in the first and second embodiments, so the overall width of the flexible sleeve (storage member) 300 can be reduced, thereby achieving space savings.

[0045] Furthermore, the insertion hole 490 in the third embodiment is formed by one tape member and an adjacent tape member. Specifically, the tape member 445b forms the insertion hole 490b with the curved portion of the adjacent tape member 444a partially constituting the side wall of the insertion hole 490b. With this configuration, whereas the insertion hole in the first and second embodiments is only elliptical, a more rectangular insertion hole can be formed, which not only allows for a wider range of storage in the vertical direction but also eliminates dead space at the left and right ends of the insertion hole relative to the storage section.

[0046] In the first to third embodiments described above, polyurethane is used as an example of the material of the fusion layer, but it is of course not limited to this, and polyurethane-based, thermoplastic polyurethane-based, polyethersulfone-based, polyamide-based, and ethylene vinyl acetate-based hot melt materials can be used. In the first to third embodiments described above, PTFE is used as an example of the material of the non-fusion layer, but it is of course not limited to this, and any material can be used as long as it is adhesive to the above-mentioned fusion layer material, such as nonwoven fabric, and the non-fusion layers do not adhere to each other.

[0047] Furthermore, in the first to third embodiments described above, examples with three insertion holes were given, but it goes without saying that this is not limited to this; at least two or more insertion holes are sufficient, and the more insertion holes there are, the smaller the overall width can be.

[0048] In addition, while the first to third embodiments described above exemplify storage sections of the same size, this is of course not limited to this, and adjacent storage sections may be of different sizes. This not only makes it possible to accommodate cables of different sizes, but also allows any number of cables to be stored. Furthermore, the storage members of the first to third embodiments described above may further include a jacket layer made of the same material as the non-fusible layer on the outside of the fusible sheet.

[0049] Next, the manufacturing method of the present invention will be described. Figure 10 is a flow chart showing an overview of the manufacturing method. As shown in the figure, the storage member of the present invention first includes a fusion sheet preparation step in which a fusion sheet is prepared. In this fusion sheet preparation step, a sheet-like upper fusion sheet member having a predetermined width and extending in the longitudinal direction and a lower fusion sheet member of the same size as the upper fusion sheet member are prepared. These upper and lower fusion sheet members are made of materials that can be bonded to each other by heat treatment and also to the insertion hole-forming member (non-fusion sheet) described below by heat treatment, and can be made of materials such as FEP.

[0050] Next, a through-hole forming member preparation step (non-fusion sheet preparation step) is performed to prepare a member for forming the through-holes in the housing member. In this through-hole forming member preparation step, multiple non-fusion tapes are prepared. The multiple non-fusion tapes are prepared in the number equal to the desired number of through-holes, and are tape-shaped with a width smaller than that of the above-mentioned upper and lower fusion sheet members. These multiple non-fusion tapes are made of a material that can be bonded to the above-mentioned upper and lower fusion sheet members by heat treatment, but cannot be bonded to each other by heat treatment. For example, expanded PTFE can be used as the material. Furthermore, the multiple non-fusion tapes are prepared by arranging them in parallel, each folded so that their cross sections are horizontally U-shaped.

[0051] Next, pressure rolls for heat-pressing the fusion sheet and non-fusion tape are prepared. In this pressure roll preparation step, as shown in Fig. 11, the upper and lower fusion sheet members are first set on two cover rolls R1 and R2, which are fed out facing each other. Next, the plurality of non-fusion tapes are arranged in parallel in the width direction so as to fit between the upper and lower fusion sheet members, and are set on two insertion hole-forming member rolls R3 (or R4, if necessary), which are fed out so as to fit between the upper and lower fusion sheet members (non-fusion sheet arrangement step).

[0052] In order to integrate the upper surface fusion-bonded sheet member and the lower surface fusion-bonded tape fed out in this state with the plurality of non-fusion-bonded tapes, the mixture is passed through pressure rollers R5 and R6 in a heat and pressure bonding process, thereby producing a container member.

[0053] Next, a description will be given of a long object protection and guiding device using a housing member. As shown in FIG. 12 , this long object protection and guiding device 1000 includes long objects 1010 (six in total in this description) such as cables or tubes, and a housing member 1020. The housing member 1020 has three tubular housing sections 1030a, 1030b, and 1030c. These tubular housing sections are each configured to be approximately the same size and correspond to those in the third embodiment described above. Note that while FIG. 12 illustrates the housing member according to the third embodiment, this is not limiting and the housing members according to the first or second embodiment may be used instead.

Claims

1. A container member comprising at least a first storage section and a second storage section adjacent to each other, the first storage section and the second storage section having a first fusion member and a second fusion member facing each other, and a first non-fusion member and a second non-fusion member disposed between the first fusion member and the second fusion member, the first non-fusion member having a cross section in a second direction, which is a height direction perpendicular to a first direction, which is a longitudinal direction, that is, a horizontal U-shaped cross section, and the second non-fusion member having a cross section in the second direction that is a horizontal U-shaped cross section facing in the same direction as the first non-fusion member.

2. The container member according to claim 1, wherein at least one of one end and the other end of the cross section of the second non-fused portion in the second direction is in contact with the first non-fused portion.

3. The container member according to claim 1, wherein both one end and the other end of the cross section of the second non-fused portion in the second direction are in contact with the first non-fused portion.

4. The container member according to claim 1, wherein neither one end nor the other end of the cross section of the second non-fused portion in the second direction is in contact with the first non-fused portion.

5. The container member according to claim 1, wherein the first and second fusion members are made of materials that can be fused to the first and second non-fusion members, and the first and second non-fusion members are made of materials that cannot be fused to each other.

6. A method for manufacturing a storage member, comprising: a fusion sheet preparation step of preparing two fusion sheets having fusion properties; a non-fusion sheet preparation step of preparing a plurality of non-fusion tapes having non-fusion properties; a non-fusion sheet arrangement step of arranging the plurality of non-fusion sheets in parallel between the two fusion sheets with each sheet folded horizontally into a U-shape in cross section; and a fusion step of heating the fusion sheets arranged in the non-fusion sheet arrangement step to fuse them together.

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