Foot pack and method for manufacturing a foot pack

The foot pack design with foldable rectangular sheets and adhesive portions addresses high manufacturing costs and waste by allowing cost-effective production and targeted application of pharmaceuticals or cosmetics to the sole of the foot, enhancing usability and reducing environmental impact.

JP2026113745APending Publication Date: 2026-07-07株式会社BHコンセプト

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
株式会社BHコンセプト
Filing Date
2026-04-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Conventional foot packs require special molds for each shape, leading to high manufacturing costs and material wastage due to scraps, especially when producing multiple sizes for different users.

Method used

A foot pack design using rectangular sheet-like members with fold lines and adhesive portions, allowing for cost-effective manufacturing without molds, and application of pharmaceuticals or cosmetics only to the sole of the foot by folding and adhering the sheets without direct contact with the top of the foot.

Benefits of technology

Enables low-cost production of foot packs in various sizes, ensuring pharmaceuticals or cosmetics are applied uniformly and efficiently to the sole of the foot without leakage or hand contact, reducing waste and simplifying usage and cleanup.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a foot pack that can be manufactured at low cost and can be applied only to the skin on the soles of the feet. [Solution] An exfoliating agent 14 and a second sheet-like member 12 capable of holding the exfoliating agent 14, A watertight rectangular sheet-like member having a first fold line 11e and first folded pieces 11f, 11g, the first sheet-like member 11 is folded along the first fold line 11e to enclose a second sheet-like member 12, and in the first sheet-like member 11 in the folded state along the first fold line 11e, a first welded portion 13a is bonded near the edges 11a, 11c of the first folded pieces 11f, 11g parallel to the edges 11a, 11c, and two second welded portions 13b are bonded near the edges 11b, 11d of the first folded pieces 11f, 11g parallel to the edges 11b, 11d, the second sheet-like member 12 is configured such that the skin on the bottom of the foot FT comes into contact with the second sheet-like member 12 when the ankle-end portion of the foot FT is inserted through the opening 11i.
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Description

Technical Field

[0001] The present invention relates to a foot pack for the treatment, hygiene, beauty, etc. of the skin on the sole of the foot.

Background Art

[0002] Conventionally, as a method of using pharmaceuticals, quasi-drugs or cosmetics (hereinafter referred to as "pharmaceuticals, etc.") for the skin of a human foot, for example, as disclosed in Patent Documents 1 and 2, a water-impermeable sheet-like member formed in a sock shape or a boot shape along the human foot, and a foot pack comprising a holding member that is enclosed in the sheet-like member and holds pharmaceuticals, etc. has been proposed.

[0003] Such a foot pack can apply pharmaceuticals, etc. to the skin of the foot via the holding member by inserting the foot inside the sheet-like member. In other words, the foot pack can uniformly apply pharmaceuticals, etc. to the skin of the foot simply by performing an operation such as putting on socks or boots, and there is no need for operations such as taking out an appropriate amount of pharmaceuticals and applying them to the skin of the foot, so it can be easily used.

[0004] Moreover, since it is not necessary to touch the pharmaceuticals, etc. with the hands, the hands are not soiled, and the water-impermeable sheet-like member prevents the pharmaceuticals, etc. from leaking, and the floor, clothes, etc. are not soiled by the pharmaceuticals, etc., so after use, there is no need for hand washing or cleaning the surroundings, and it is easy to clean up.

[0005] Thus, while the conventional foot pack has the advantage of being easily used, there is a possibility of the following problems occurring.

[0006] FollowTraditional foot packs are made by forming sheet material into a tabi (Japanese split-toe sock) or boot shape, requiring a special mold to cut out the tabi or boot shape during manufacturing. Therefore, a new mold must be made each time a different shape of foot pack is produced, resulting in increased manufacturing costs. In particular, foot pack manufacturers produce multiple products of the same item in different sizes, such as L, M, and S, to serve a wide range of users, which further increases manufacturing costs.

[0007] Furthermore, using a mold to cut the material into a tabi (Japanese socks) or boot shape results in scraps, making it uneconomical. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Utility Model Registration No. 3149518 Gazette [Patent Document 2] Utility Model Registration No. 3153595 Gazette [Overview of the project] [Problems that the invention aims to solve]

[0009] This invention has been made in view of the aforementioned problems of the conventional invention, and the main object of this invention is Without using a special cutter Can be manufactured at low cost Incompetent Foot pack and method for manufacturing foot packs The objective is to provide: means for solving the problem and the effects of the invention.

[0010] According to the first aspect of the present invention, a foot pack comprises a pharmaceutical product, quasi-drug or cosmetic product used on the skin of the sole of a person's foot, a holding member capable of holding the pharmaceutical product, quasi-drug or cosmetic product, and a watertight, substantially rectangular sheet-like member having a first fold line positioned substantially parallel to the pair of opposing sides in the middle of the pair of sides, and two first folded pieces separated by the first fold line, and a first sheet-like member that is folded along the first fold line to enclose the holding member, and the first sheet-like member in the folded state along the first fold line The member comprises a first adhesive portion that adheres to the vicinity of the first edge, which is the edge of the two first folded pieces that is opposite to the first fold line, substantially parallel to the first edge, and two second adhesive portions that adhere to the vicinity of the second edge, which is the two edges of the two first folded pieces that are adjacent to the first fold line, substantially parallel to the second edge, with an opening formed near the first adhesive portion, so that the skin of the sole of the foot and the retaining member can come into contact by inserting at least the foot from the ankle downwards through the opening.

[0011] Furthermore, according to the second aspect of the present invention, the retaining member is a substantially rectangular sheet-like member having a second fold line positioned substantially in the middle of a pair of opposing sides and substantially parallel to the pair of sides, and when folded along the second fold line, the second fold line is positioned along the first fold line, and the retaining member is provided with a third adhesive portion that adheres the first sheet-like member and the retaining member together.

[0012] Furthermore, according to the third aspect of the present invention, when a person's foot is inserted through the opening, the retaining member can be configured to be sized so as not to come into contact with the skin of the top of the foot.

[0013] The skin on the soles of the feet is more prone to becoming thicker and harder than the skin on the tops of the feet due to irritation from walking and other activities. Therefore, in conventional foot packs that apply pharmaceuticals uniformly to the skin of the feet, using pharmaceuticals formulated to be effective on the soles of the feet can be too strong on the tops of the feet, potentially causing skin irritation. According to the above configuration, the retaining member can be made to come into contact with the skin on the sole of the foot, so pharmaceuticals and the like can be applied only to the skin on the sole of the foot. Furthermore, since the first sheet-like member and the retaining member can be made into rectangular sheet-like members, they can be manufactured at low cost without using molds.

[0014] Furthermore, according to the sole pack according to the fourth aspect of the present invention, when at least the distal side of a person's foot from the ankle is inserted through the opening, the foot is prevented from being accidentally removed through the opening, and the inside of the first sheet-like member is prevented from contacting the skin of the instep of the foot, and it can be configured to include a fourth bonding portion for bonding the two first folding pieces.

Brief Description of the Drawings

[0015] [Figure 1] It is a schematic diagram of a sole pack. [Figure 2] It is a cross-sectional view taken along the line A-A' in FIG. 1 of the sole pack. [Figure 3] It is a developed view of the first sheet-like member. [Figure 4] It is a schematic diagram showing the use state of the sole pack. [Figure 5] It is a developed view of the second sheet-like member. [Figure 6] It is a schematic diagram for comparing the sole pack according to the present invention with a conventional foot pack. [Figure 7] It is a flowchart for explaining the usage method of the sole pack. [Figure 8] It is a schematic diagram of a manufacturing apparatus for the sole pack. [Figure 9] It is a flowchart for explaining the manufacturing method of the sole pack. [Figure 10] It is a schematic diagram for explaining the forming method of the third welding portion. [Figure 11] It is a schematic diagram for explaining the forming method of the first folding line and the second folding line. [Figure 12] It is a schematic diagram for explaining the forming method of the second welding portion. [Figure 13] It is a schematic diagram for explaining the forming method of the fourth welding portion. [Figure 14] It is a schematic diagram for explaining the cutting method of the sheet-like member. [Figure 15] It is a schematic diagram for explaining the injection method of the keratolytic agent. [Figure 16] It is a schematic diagram for explaining the forming method of the first welding portion. [Modes for carrying out the invention]

[0016] Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments shown below are illustrative examples for realizing the technical concept of the present invention, and the present invention is not limited to these. Furthermore, this specification does not limit the members shown in the claims to the members of the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments are not intended to limit the scope of the present invention to those, unless otherwise specifically stated, but are merely illustrative examples. Note that the size and positional relationships of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and reference numerals indicate the same or similar members, and detailed explanations are omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that multiple elements are made of the same material, with one material serving multiple elements, or conversely, the function of one material can be shared among multiple materials. [Foot Sole Pack 1]

[0017] A foot pack 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 6.

[0018] As shown in Figures 1 and 2, the foot pack 1 comprises a first sheet-like member 11, a second sheet-like member 12, a welded portion 13, and a callus remover 14 (not shown). Each component will be described below. <First sheet-like member 11> 《Aspect of the first sheet-like member 11》

[0019] The first sheet-like member 11 is made of a composite material of polyethylene and polyethylene terephthalate, and as shown in Figure 3, is a rectangular sheet-like member having sides 11a to 11d (sides 11a and 11c correspond to the "first side" in the claims, and sides 11b and 11d correspond to the "second side" in the claims), and has a first fold line 11e which is a fold line parallel to sides 11a and 11c, and two first folded pieces 11f and 11g separated by the first fold line 11e.

[0020] As a result, the first sheet-like member 11 can be manufactured without using a special mold for cutting, making it possible to provide a foot pack 1 that can be manufactured at a low cost.

[0021] Furthermore, as shown in Figures 1 and 2, the first sheet-like member 11 is folded along the first fold line 11e so as to enclose the second sheet-like member 12, and the vicinity of the sides 11a to 11d of the two first folded pieces 11f and 11g are welded together to form the first welded portion 13a and the second welded portion 13b.

[0022] As a result, the second sheet-like member 12 that holds the exfoliating agent 14 is enclosed and sealed within the first sheet-like member 11, thus preventing the exfoliating agent 14 from leaking out before use of the foot pack 1. Symbol 11h

[0023] As shown in Figures 1 and 3, the first sheet-like member 11 has a symbol 11h. The symbol 11h is provided near the first welded portion 13a and is a cutting line that guides the user to cut the first sheet-like member 11 along itself.

[0024] The user can form an opening 11i by cutting the first sheet-like member 11 along the symbol 11h, and as shown in Figure 4, by inserting the ankle-to-foot end of the foot FT through the opening 11i, the skin on the sole of the foot FT comes into contact with the second sheet-like member 12, and the exfoliating agent 14 can be applied to the skin on the sole of the foot FT. Other embodiments of the first sheet-like member 11

[0025] The first sheet-like member 11 is not limited to the embodiments described above. For example, the shape of the first sheet-like member 11 is not limited to a rectangular shape, and may be a quadrilateral with sides 11b and 11d at an angle. However, in order to manufacture the foot pack 1 efficiently and at a lower cost, it is preferable that sides 11b and 11d have the same shape so as to avoid generating scrap material. In the claims, the description of the shape of the first sheet-like member as "approximately rectangular" includes the shape described herein.

[0026] Furthermore, the symbol 11h is not necessarily required. <Second sheet-like member 12> The two Appearance of the sheet-like member 12》

[0027] The second sheet-like member 12 (corresponding to an example of a "holding member" in the claims) is a rectangular plastic nonwoven fabric having sides 12a to 12d, as shown in Figure 5, and has a second fold line 12e which is a fold line parallel to sides 12a and 12c, and two Two divisions separated by the fold line 12e two It has a folded portion of 12f and 12g.

[0028] As a result, the second sheet-like member 12 can be manufactured without using a special mold for cutting, making it possible to provide a low-cost foot pack 1, and to manufacture a large number of foot packs 1 of different sizes to match the size of the foot FT.

[0029] Furthermore, as shown in Figures 1 and 2, the second sheet-like member 12 is folded along the second fold line 12e, and is positioned so that the second fold line 12e overlaps with the first fold line 11e of the first sheet-like member 11. To maintain this state, the sides 12a, 1 of the second sheet-like member 12 are arranged. 2 The vicinity of c is welded to the first folded pieces 11f and 11g of the first sheet-like member 11, and the third welded portion 13 c A formation is created. Other embodiments of the second sheet-like member 12

[0030] The second sheet-like member 12 is not limited to the embodiments described above. For example, the shape of the second sheet-like member 12 is not limited to a rectangular shape, and may be a quadrilateral with sides 12b and 12d at an angle. However, in order to manufacture the foot pack 1 efficiently and at a lower cost, it is preferable that sides 12b and 12d have the same shape so as to avoid generating scrap material. In the claims, the description of the shape of the retaining member as "approximately rectangular" includes the shape described herein.

[0031] Furthermore, the size of the second sheet-like member 12 is not particularly limited, and by adjusting the size of the second sheet-like member 12 to match the size of the foot FT, many foot packs 1 of different sizes can be manufactured. In other words, by selecting a foot pack 1 that matches the size of their own foot FT, the user can apply the exfoliating agent 14 only to the skin on the sole of their foot FT.

[0032] Furthermore, the second sheet-like member 12 may be any form capable of holding pharmaceuticals, quasi-drugs, or cosmetics, and is not limited to nonwoven plastic fabric. For example, it may be made of sponge, cloth, paper, etc. <Welded part 13> 《Appearance of the welded portion 13》

[0033] The welded portion 13 is a member formed by heat welding (heat sealing) the first sheet-like member 11 and the second sheet-like member 12, and as shown in Figure 1, it consists of a first welded portion 13a, a second welded portion 13b, a third welded portion 13c, and a fourth welded portion 13d. 《First welded part 13a》

[0034] The first welded portion 13a (corresponding to an example of the "first bonded portion" in the claims) is a member formed by welding the vicinity of the edges 11a and 11c of the two first folded pieces 11f and 11g without any gaps along the edges 11a and 11c, when the first sheet-like member 11 is folded along the first fold line 11e so as to enclose the second sheet-like member 12, as shown in Figures 1 and 2.

[0035] This prevents the exfoliating agent 14 from leaking out from sides 11a and 11c before using the foot pack 1. 《Second welded part 13b》

[0036] The second welded portion 13b (corresponding to an example of the "second adhesive portion" in the claims) is a member formed by welding the vicinity of the edges 11b and 11d of the two first folded pieces 11f and 11g together without gaps, when the first sheet-like member 11 is folded along the first fold line 11e to enclose the second sheet-like member 12, as shown in Figure 1. In other words, the second welded portion 13b is a member formed by welding each of the two second folded pieces 12f and 12g of the enclosed second sheet-like member 12 together.

[0037] This prevents the exfoliating agent 14 from leaking out from sides 11b and 11d before using the foot pack 1. 《Third welding part 13c》

[0038] As shown in Figures 1 and 2, the third welded portion 13c (corresponding to an example of the "third bonded portion" in the claims) is formed when the second fold line 12e of the second sheet-like member 12 is positioned to overlap with the first fold line 11e of the first sheet-like member 11, and the first folded pieces 11f and 11g of the first sheet-like member 11 are joined to the sides 12a and 1 of the second sheet-like member 12. 2 The neighborhood of c is edge 12a, 1 2 This is a component formed by welding along c without any gaps.

[0039] This prevents the relative position of the second sheet-like member 12 with respect to the first sheet-like member 11 from shifting. 《Fourth welded part 13d》

[0040] The fourth welded portion 13d (corresponding to an example of the "fourth bonded portion" in the claims) is a member formed when the first sheet-like member 11 is folded along the first fold line 11e to enclose the second sheet-like member 12, as shown in Figure 1, and the vicinity of the first welded portion 13a of the two first folded pieces 11f and 11g and one of the second welded portions 13b are welded parallel to the first welded portion 13a. That is, when the first sheet-like member 11 is cut along the symbol 11h to form an opening 11i, the fourth welded portion 13d is positioned to cover a part of the opening 11i (the toe side of the foot FT when the foot pack 1 is in use).

[0041] As a result, even if the foot FT is lifted in the direction of the arrow in Figure 4, the fourth welded portion 13d will catch on the toe of the foot FT, preventing the foot FT from being accidentally removed from the opening 11i.

[0042] Furthermore, by making the toe area rectangular and positioning the fourth welded portion 13d near the first welded portion 13a (far from the first fold line 11e), the sole pack 1, as shown in Figure 6, has a wider toe area compared to the conventional tabi-type (boot-type) foot pack 2, and the first sheet-like member 11 is less likely to come into contact with the skin on the top of the toe of the foot FT. The exfoliating agent 14 may adhere to the inside of the first sheet-like member 11, but the sole pack 1, with the above configuration, prevents the exfoliating agent 14 from being applied to the skin on the top of the foot FT via the first sheet-like member 11, and allows the exfoliating agent 14 to be applied only to the skin on the bottom of the foot FT. Other aspects of the welded portion 13

[0043] The welded portion 13 is not limited to the embodiments described above. For example, the welded portion 13 may be formed using welding methods other than heat welding, such as high-frequency welding, ultrasonic welding, or laser welding. Furthermore, the terms "first adhesive portion," "second adhesive portion," "third adhesive portion," and "third" in the claims are not limited to the embodiments described above. four The "adhesive portion" only needs to be able to bond the first sheet-like member 11 and the second sheet-like member 12, and can be bonded using methods other than welding, such as using an adhesive.

[0044] Furthermore, the shapes of the third welded portion 13c and the fourth welded portion 13d are not limited to the solid line shape shown in Figure 1, but may be dashed line shapes, curved shapes, etc. Moreover, the third welded portion 13c and the fourth welded portion 13d do not necessarily have to be provided. <Exfoliating agent 14> 《Aspects of exfoliating agent 14》

[0045] Exfoliating agent 14 (corresponding to an example of "pharmaceuticals, quasi-drugs, or cosmetics" in the claims) is a drug containing glycolic acid, salicylic acid, citric acid, etc. as active ingredients.

[0046] The exfoliating agent 14 is applied to the foot FT via the second sheet-like member 12. back It is applied to the skin and exfoliates. Other embodiments of exfoliating agent 14

[0047] The exfoliating agent 14 is not limited to the embodiments described above. Furthermore, in the foot pack 1, the exfoliating agent 14 may be replaced with a beauty serum, athlete's foot treatment, other pharmaceuticals, quasi-drugs, or cosmetics. [How to use Foot Pack 1]

[0048] Foot pack 1 can be used, for example, by following the procedure below (see Figure 7). <Step ST101: Forming the opening>

[0049] First, in step ST101, the first sheet-like member 11 is cut along the symbol 11h to form an opening 11i.

[0050] In the foot pack 1 before step ST101, the second sheet-like member 12 that holds the exfoliating agent 14 is sealed with the first sheet-like member 11, which prevents the exfoliating agent 14 from leaking out. <Step ST102: Application of exfoliating agent>

[0051] Next, in step ST102, the foot FT is inserted from the ankle end through the opening 11i, bringing the skin on the sole of the foot FT into contact with the second sheet-like member 12, and the exfoliating agent 14 is applied to the skin on the sole of the foot FT. At this time, if necessary, an application time for the exfoliating agent 14 (time until proceeding to step ST103, which will be described later) may be provided.

[0052] Thus, the foot pack 1 allows for the uniform application of medicinal substances to the skin on the soles of the feet simply by performing an action similar to putting on tabi socks or boots. Since there is no need to take out an appropriate amount of exfoliating agent 14 and apply it to the skin of the feet, it is easy to use. In addition, since there is no need to touch the exfoliating agent 14 with your hands, your hands will not get dirty. <Step ST103: Cleaning Up>

[0053] Finally, in step ST103, the foot FT is removed from the ankle end through the opening 11i, and the used foot pack 1 is disposed of. If necessary, the exfoliating agent 14 adhering to the skin on the sole of the foot FT may be washed off.

[0054] Even in this case, there is no need to touch the exfoliating agent 14 with your hands, so your hands do not get dirty. Furthermore, the first sheet-like member 11 prevents the exfoliating agent 14 from leaking out, so the floor, clothing, etc., do not get soiled with the exfoliating agent 14. Therefore, after use, there is no need to wash your hands or clean the surrounding area, and cleanup is easy. [Manufacturing method for foot pack 1]

[0055] Foot pack 1 can be manufactured, for example, using a group of manufacturing equipment 3 as shown in Figure 8, following the procedure below (see Figure 9). <Step ST201: Feeding of sheet-like material>

[0056] First, in step ST201, the sheet roll SR1 (if the sole pack 1 has a symbol 11h, a sheet roll SR1 with the symbol 11h printed in the desired location is prepared) is rewound onto the sheet member SB1 which will be the material for the first sheet member 11, using the feeding device 31a, and the sheet member SB1 is fed to the manufacturing device group 3. At the same time, the sheet roll SR2 is rewound onto the sheet member SB2 which will be the material for the second sheet member 12, using the feeding device 31b, and the sheet member SB2 is fed to the manufacturing device group 3.

[0057] At this time, the sheet-like member SB2 is fed to the manufacturing apparatus group 3 so that it is positioned in the center of the width direction of the sheet-like member SB1. Also, since the width of sheet roll SR1 is the length of sides 11b and 11d of the first sheet-like member 11, and the width of sheet roll SR2 is the length of sides 12b and 12d of the second sheet-like member 12, sheet rolls SR1 and SR2 of appropriate widths are selected to match the size of the feet to be used. <Step ST202: Formation of the third welded area>

[0058] Next, in step ST202, as shown in Figure 10, the third heat sealing device 32 welds both ends of the sheet-like member SB2 to the sheet-like member SB1.

[0059] Specifically, as shown in Figures 8 and 10, the third heat sealing device 32 has a heater section 32a that generates heat above the melting point of the sheet-like members SB1 and SB2, and a receiving section 32b that is positioned opposite the heater section 32a. The sheet-like members SB1 and SB2 can be welded by sandwiching them between the heater section 32a and the receiving section 32b. The welded portion 13c' formed at this time later becomes the third welded portion 13c.

[0060] In other words, the position of the third welding portion 13c can be easily changed by adjusting the positions of the heater portion 32a and the receiving portion 32b in the width direction of the sheet-like members SB1 and SB2. <Step ST203: Formation of the first and second fold lines>

[0061] Next, in step ST203, as shown in Figure 11, the sheet members SB1 and SB2 are folded in the center in the width direction using the folded plate 33. At this time, the fold line 11e' formed on the sheet member SB1 later becomes the first fold line 11e, and the fold line 12e' formed on the sheet member SB2 later becomes the second fold line 12e. <Step ST204: Formation of the second welded area>

[0062] Next, in step ST204, as shown in Figure 12, the sheet members SB1 and SB2 are welded together at regular intervals using the second heat sealing device 34.

[0063] Specifically, as shown in Figures 8 and 12, the second heat sealing device 34 has a heater section 34a that generates heat above the melting point of the sheet-like members SB1 and SB2 and moves up and down relative to the sheet-like members SB1 and SB2, and a receiving section 34b that is positioned opposite the heater section 34a. When the heater section 34a moves downward, the sheet-like members SB1 and SB2 are sandwiched between the heater section 34a and the receiving section 34b, thereby welding them together. The welded portion 13b' formed at this time later becomes the second welded portion 13b.

[0064] In other words, the distance between adjacent second welded sections 13b can be easily changed by adjusting the timing of the vertical movement of the heater section 34a. <Step ST205: Formation of the fourth welded area>

[0065] Next, in step ST205, as shown in Figure 13, the fourth heat sealing device 35 intermittently welds the vicinity of the edge of the sheet-like member SB1 opposite the fold line 11e'.

[0066] Specifically, as shown in Figures 8 and 13, the fourth heat sealing device 35 has a heater section 35a that generates heat above the melting point of the sheet-like member SB1 and moves up and down relative to the sheet-like member SB1, and a receiving section 35b that is positioned opposite the heater section 35a. When the heater section 35a moves downward, the sheet-like member SB1 is sandwiched between the heater section 35a and the receiving section 35b, thereby welding it. The welded section 13d' formed at this time later becomes the fourth welded section 13d.

[0067] In other words, the position of the fourth welding portion 13d can be easily changed by adjusting the positions of the heater portion 35a and the receiving portion 35b in the width direction of the sheet-like member SB1, and the timing of the vertical movement of the heater portion 35a. Furthermore, the length of the fourth welding portion 13d can be easily changed by adjusting the timing of the vertical movement of the heater portion 35a. <Step ST206: Cutting the sheet-like material>

[0068] Next, in step ST206, as shown in Figure 14, the sheet-like members SB1 and SB2 are cut at the center of the welded portion 13b' by the cutting device 36.

[0069] Specifically, as shown in Figures 8 and 14, the cutting device 36 has a blade portion 36a that moves up and down relative to the sheet-like members SB1 and SB2, and a receiving portion 36b positioned opposite the blade portion 36a. When the blade portion 36a moves downward, the sheet-like members SB1 and SB2 are cut by being sandwiched between the blade portion 36a and the receiving portion 36b, thereby forming a bag-like member FB (each component of the bag-like member FB will be described using the names and reference numerals of the corresponding components of the foot sole pack 1) which corresponds to the state of the foot sole pack 1 with the first welded portion 13a and the exfoliating agent 14 removed. The formed bag-like member FB is fed by a belt conveyor BC instead of feeding devices 31a and 31b.

[0070] The cutting process here simply involves separating the connected bag-shaped members FB to form independent bag-shaped members FB. In other words, it is not like conventional foot packs where the material is cut into a tabi-shaped or boot-shaped form. engineeringBecause it's not as extensive, no scraps are generated, making it economical. <Step ST207: Injection of exfoliating agent>

[0071] Next, in step ST207, as shown in Figure 15, the exfoliating agent 14 is injected into the sheet-like member SB2, which is placed inside the bag-like member FB, using the injection device 37.

[0072] Specifically, as shown in Figures 8 and 15, the injection device 37 has a suction nozzle 37a and an injection nozzle 37b. The suction nozzle 37a uses negative pressure to attract and lift the first folded piece 11g, thereby widening the gap between the first folded pieces 11f and 11g. The injection nozzle 37b is then inserted through this gap, and the exfoliating agent 14 is injected into the sheet-like member SB2 from the injection nozzle 37b. <Step ST208: Formation of the first welded area>

[0073] Finally, in step ST208, as shown in Figure 16, the vicinity of the edges 11a and 11c of the two first folded pieces 11f and 11g is welded by the first heat sealing device 38.

[0074] Specifically, as shown in Figures 8 and 16, the first heat sealing device 38 has a heater section 38a that generates heat above the melting point of the first sheet-like member 11 (sheet-like member SB1), and a receiving section 38b that is positioned opposite the heater section 38a. The first welded section 13a is formed by sandwiching the two first folded pieces 11f and 11g between the heater section 38a and the receiving section 38b.

[0075] In other words, the position of the first welding portion 13a can be easily changed by adjusting the positions of the heater portion 38a and the receiving portion 38b in the width direction of the first sheet-like member 11 (sheet-like member SB1). <Other manufacturing methods for Foot Pack 1>

[0076] Other manufacturing methods for the foot pack 1 are not limited to the embodiments described above. For example, the order of each step can be changed as appropriate. Furthermore, multiple steps may be performed simultaneously to form a single step, or conversely, one step may be divided into multiple steps.

[0077] Furthermore, the manufacturing equipment group 3 used is not limited to those described above and can be changed as appropriate. [Effects of the foot pack 1 according to the present invention]

[0078] As explained above, the foot pack 1 according to the present invention can be manufactured without using a special mold for cutting, and therefore can be manufactured at low cost. feet I can provide one pack for the back of the deck.

[0079] Furthermore, because it can be manufactured without using a special mold for cutting, many foot packs 1 of different sizes can be produced to match the size of the foot FT, and the user can apply the exfoliating agent 14 only to the skin on the sole of the foot FT by selecting the foot pack 1 that matches the size of their foot FT. [Explanation of Symbols]

[0080] 1…Foot pack 11…First sheet-like member 11a~11d...sides 11e…First fold line 11e'...broken line 11f, 11g...first fold piece 11h... Symbol 11i…Opening 12…Second sheet-like member 12a~12d...sides 12e…Second fold line 12e'...broken line 12f, 12g...Second folded piece 13...Welded part 13a…First welding part 13b…Second welding part 13c…Third welding part 13d...Fourth welding part 13b'~13d'...Welded part 14… Exfoliating agents 2…Conventional foot packs 3…Manufacturing equipment group 31a, 31b...Feeding device 32...Third heat sealing device; 32a...Heater section; 32b...Receiving section 33... corrugated sheet metal 34...Second heat sealing device; 34a...Heater section; 34b...Receiving section 35...Fourth heat sealing device; 35a...Heater section; 35b...Receiving section 36...Cutting device; 36a...Blade; 36b...Receiving part 37...Injection device; 37a...Suction nozzle; 37b...Injection nozzle 38...First heat sealing device; 38a...Heater section; 38b...Receiving section FT...foot SR1, SR2... Sheet Roll SB1, SB2... Sheet-like members FB...Bag-shaped member BC... Belt conveyor

Claims

1. Pharmaceuticals, quasi-drugs, or cosmetics used on the skin of the soles of a person's feet, A retaining member capable of holding the aforementioned pharmaceutical, quasi-drug, or cosmetic, A watertight, substantially rectangular sheet-like member having a first fold line positioned substantially parallel to a pair of opposing sides, approximately midway between the two sides, and two first folded pieces separated by the first fold line, the first sheet-like member being folded along the first fold line to enclose the holding member, In the first sheet-like member folded along the first fold line, a first adhesive portion is provided that adheres the vicinity of the first edge, which is the edge of the two first folded pieces that is opposite to the first fold line, substantially parallel to the first edge. In the first sheet-like member folded along the first fold line, two second adhesive portions are provided that adhere to the vicinity of the second sides, which are the two sides of the two first folded pieces adjacent to the first fold line, substantially parallel to the second sides. Equipped with, A foot pack is configured such that an opening is formed near the first adhesive portion, and at least the part of a person's foot from the ankle downwards is inserted through the opening, thereby bringing the skin of the sole of the foot into contact with the retaining member.

2. A foot pack according to claim 1, further, The holding member is a substantially rectangular sheet-like member, having a second fold line positioned substantially parallel to a pair of opposing sides, approximately midway between the two sides, and when folded along the second fold line, the second fold line is positioned along the first fold line. A foot pack comprising a third adhesive portion for bonding the first sheet-like member and the holding member.

3. A foot pack according to claim 2, A foot pack characterized in that, when a person's foot is inserted through the opening, at least the part of the foot from the ankle downwards, the retaining member is sized so as not to come into contact with the skin of the top of the foot.

4. A foot pack according to any one of claims 1 to 3, further, A foot pack comprising a fourth adhesive portion for bonding the two first folded pieces together, to prevent the foot from being accidentally removed from the opening when at least the distal end of the foot, from the ankle, is inserted through the opening, and to prevent the inside of the first sheet-like member from coming into contact with the skin of the top of the foot.