Footwear item

Abstract

The problem addressed by the present invention is that of providing a footwear item that is difficult to take off while falling asleep or sleeping and makes falling asleep or sleeping comfortable for a wearer. The footwear item 100 according to the present invention comprises a first foot covering part 110 and a second foot covering part 120. The first foot covering part covers at least part of a toe-side part of the foot. The second foot covering part covers a heel-side part of the foot. Moreover, said second foot covering part is formed so as to be linked to the first foot covering part. The compression of the second foot covering part is greater than the compression of the first foot covering part. The ratio of the compression of the first foot covering part to the compression of the second foot covering part is preferably 9.50 ± 0.49 hPa : 33.20 ± 3.56 hPa.

Description

[Technical field]

[0001] The present invention relates to foot wear items that can be worn at least on the feet, such as socks (socks, knee-high socks, etc.), leg warmers, stockings, tights, etc. [Background technology]

[0002] In recent years, leg warmers and socks have been proposed that warm the feet and legs while sleeping, enabling the wearer to fall asleep and sleep comfortably (see, for example, JP 2005-068588 A, Utility Model Registration No. 3088478, Utility Model Registration No. 3144081, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-068588 A [Patent Document 2] Utility Model Registration No. 3088478 [Patent Document 3] Utility Model Registration No. 3144081 Summary of the Invention [Problem to be solved by the invention]

[0004] However, people often move their bodies unconsciously while falling asleep or staying asleep, and at that time, there is a risk that the leg warmers or socks mentioned above may come off. As a result, the feet or legs may get cold, and the wearer may wake up in the middle of the night due to the discomfort. On the other hand, if the leg warmers or socks are tightened (pressure) too much to prevent this, the feet or legs may be compressed and the wearer may feel uncomfortable.

[0005] An object of the present invention is to provide a foot attachment that is difficult to come off while falling asleep or staying asleep, and that allows the wearer to fall asleep or stay asleep comfortably. [Means for solving the problem]

[0006] A foot wearing device according to a first aspect of the present invention includes a first foot covering part and a second foot covering part. The first foot covering part covers at least a part of the toe side of the foot. The second foot covering part covers the heel side of the foot. The second foot covering part is formed so as to be continuous with the first foot covering part. The second foot covering part exerts a higher pressure on the foot than the first foot covering part.

[0007] As a result of intensive research by the inventors of the present application, it has become clear that when the relationship between the pressure of the first foot covering part and the pressure of the second foot covering part is as described above, the foot wearing device can be made difficult to come off from the foot while falling asleep or staying asleep without compressing the wearer's foot to an uncomfortable degree. Therefore, this foot wearing device is difficult to come off from the foot while falling asleep or staying asleep, and can provide the wearer with a comfortable falling asleep or staying asleep.

[0008] A foot wearing device according to a second aspect of the present invention is the foot wearing device according to the first aspect, in which the wearing pressure of the first foot covering part: the wearing pressure of the second foot covering part is 9.50±0.49 hPa: 33.20±3.56 hPa.

[0009] As a result of intensive research by the inventors of the present application, it has become clear that when the pressure of the first foot covering part and the pressure of the second foot covering part are as described above, the foot wearing device can be made difficult to come off from the foot while falling asleep or staying asleep without compressing the wearer's foot to an uncomfortable degree. Therefore, this foot wearing device is difficult to come off from the foot while falling asleep or staying asleep, and can provide the wearer with a comfortable falling asleep or staying asleep.

[0010] A foot wearing device according to a third aspect of the present invention is the foot wearing device according to the first aspect, further comprising an ankle covering part. The ankle covering part covers the ankle. The ankle covering part is formed so as to be continuous with a second foot covering part. The second foot covering part exerts a higher pressure on the foot than the ankle covering part.

[0011] As a result of intensive research by the inventors of the present application, it has become clear that when the relationship between the pressure of the second foot covering part and the pressure of the ankle covering part is as described above, the foot wearing device can be made to be difficult to come off from the foot or ankle while falling asleep or staying asleep without compressing the wearer's foot or ankle to an uncomfortable degree. Therefore, this foot wearing device is difficult to come off from the foot or ankle while falling asleep or staying asleep, and can provide the wearer with a comfortable falling asleep or staying asleep.

[0012] A foot wearing tool according to a fourth aspect of the present invention is the foot wearing tool according to the third aspect, in which the wearing pressure of the second foot covering part: the wearing pressure of the ankle covering part is 33.20±3.56 hPa: 8.17±2.62 hPa.

[0013] As a result of intensive research by the inventors of the present application, it has become clear that when the pressure of the second foot covering part and the pressure of the ankle covering part are as described above, the foot wearing device can be made to be difficult to come off from the foot or ankle while falling asleep or staying asleep without compressing the wearer's foot or ankle to an uncomfortable degree. Therefore, this foot wearing device is difficult to come off from the foot or ankle while falling asleep or staying asleep, and can provide the wearer with a comfortable falling asleep or staying asleep.

[0014] A foot wearing device according to a fifth aspect of the present invention is the foot wearing device according to the third aspect, further comprising an ankle covering part. The ankle covering part covers an upper part of the ankle. The ankle covering part is formed so as to be continuous with the ankle covering part. The ankle covering part exerts a higher pressure on the foot than the ankle covering part.

[0015] As a result of intensive research by the inventors of the present application, it has become clear that when the relationship between the pressure of the second foot covering part and the pressure of the ankle covering part is as described above, the foot wearing device can be made difficult to come off from the foot, ankle, and upper part of the ankle while falling asleep or staying asleep, without compressing the foot, ankle, and upper part of the ankle of the wearer to an uncomfortable degree. Therefore, this foot wearing device is difficult to come off from the foot, ankle, and upper part of the ankle while falling asleep or staying asleep, and can provide the wearer with a comfortable falling asleep or staying asleep.

[0016] A foot wearing tool according to a sixth aspect of the present invention is the foot wearing tool according to the fifth aspect, in which the wearing pressure of the ankle covering part: the wearing pressure of the above-ankle covering part is 8.17±2.62 hPa: 5.63±0.51 hPa.

[0017] As a result of intensive research by the inventors of the present application, it has become clear that when the pressure of the second foot covering part and the pressure of the ankle covering part are as described above, the foot wearing device can be made difficult to come off from the foot, ankle, and upper part of the ankle while falling asleep or staying asleep, without compressing the foot, ankle, and upper part of the ankle of the wearer to an uncomfortable degree. Therefore, this foot wearing device is difficult to come off from the foot, ankle, and upper part of the ankle while falling asleep or staying asleep, and can provide the wearer with a comfortable falling asleep or staying asleep.

[0018] A foot wearing device according to a seventh aspect of the present invention is the foot wearing device according to the fifth aspect, further comprising a shin covering part. The shin covering part covers at least a part of the shin. The shin covering part is formed so as to be continuous with the upper-ankle covering part. The upper-ankle covering part exerts a higher pressure on the foot than the shin covering part.

[0019] As a result of intensive research by the inventors of the present application, it has become clear that when the relationship between the pressure of the ankle covering part and the pressure of the shin covering part is as described above, the foot attachment can be made difficult to come off from the foot, ankle, upper part of the ankle, and shin while falling asleep or staying asleep, without compressing the wearer's foot, ankle, upper part of the ankle, and shin to an uncomfortable degree. Therefore, this foot attachment is difficult to come off from the foot, ankle, upper part of the ankle, and shin while falling asleep or staying asleep, and can provide the wearer with comfortable falling asleep or staying asleep.

[0020] A foot wearing tool according to an eighth aspect of the present invention is the foot wearing tool according to the seventh aspect, in which the wearing pressure of the ankle covering part: the wearing pressure of the shin covering part is 5.63±0.51 hPa: 4.80±3.13 hPa.

[0021] As a result of intensive research by the inventors of the present application, it has become clear that when the pressure of the ankle covering part and the pressure of the shin covering part are as described above, the foot attachment is unlikely to come off from the foot, ankle, upper part of the ankle, or shin while falling asleep or staying asleep, without compressing the wearer's foot, ankle, upper part of the ankle, or shin to an uncomfortable degree. Therefore, this foot attachment is unlikely to come off from the foot, ankle, upper part of the ankle, or shin while falling asleep or staying asleep, and can provide the wearer with comfortable falling asleep or staying asleep.

[0022] A foot attachment according to a ninth aspect of the present invention is the foot attachment according to any one of the first to eighth aspects, and is used to promote sleep.

[0023] Therefore, this footwear can help the wearer to fall asleep more easily.

[0024] A foot wearing device according to a tenth aspect of the present invention is the foot wearing device according to the ninth aspect, and this foot wearing device has a cylindrical shape with openings on both sides.

[0025] Therefore, this foot attachment can expose the blood vessel area (for example, AVA blood vessel area) on the toe side of the wearer's foot, and therefore can sufficiently lower the core body temperature of the wearer, thereby providing the wearer with a good quality sleep. [Brief description of the drawings]

[0026] [Figure 1] 1 is a side view of a sleep-promoting leg warmer according to an embodiment of the present invention. [Diagram 2] 1 is a plan view of a sleep-promoting leg warmer according to an embodiment of the present invention when laid flat. FIG. [Diagram 3] 3 is a vertical cross-sectional view of a first clamping portion of the sleep-promoting leg warmer according to the embodiment of the present invention. FIG. [Figure 4] 1 is a plan view of the raised portion of a sleep-promoting leg warmer according to an embodiment of the present invention. FIG. [Diagram 5]1A to 1C are diagrams showing a method of knitting the protrusions of the sleep-promoting leg warmers according to an embodiment of the present invention. [Figure 6] FIG. 13 is a plan view showing the shape of the raised portions of the sleep-promoting leg warmers according to modification (N). [Explanation of symbols]

[0027] 100 Sleep-promoting leg warmers (footwear) 110 Partial foot covering part (first foot covering part) 120 First clamping part (second foot covering part) 140 Ankle Cover 150 Second clamping part (ankle covering part) 160 Shin Cover DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] <Configuration of the foot attachment according to the embodiment of the present invention> The foot attachment according to the embodiment of the present invention is an attachment to be attached to a human foot, such as socks (foot covers, socks, knee-high socks), leg warmers, stockings, tights, etc. The "foot" here refers to the part from the ankle to the toes. The foot attachment may cover only a part of the human foot, or may cover the entire human foot. The foot attachment may also have a leg covering part for covering the human leg, such as socks, knee-high socks, leg warmers, stockings, tights, etc.

[0029] An example of a foot attachment according to an embodiment of the present invention is a sleep-promoting leg warmer 100 shown in Fig. 1. This sleep-promoting leg warmer 100 was invented to realize the following three concepts a), b), and c). a) By warming the feet, except for the toes, it prevents the inconvenience of not being able to sleep due to cold feet. b) The toe side is opened, lowering the wearer's core body temperature and inducing drowsiness. c) By stimulating the acupressure point located on the heel, it activates the parasympathetic nervous system and relaxes the wearer's body.

[0030] The sleep-promoting leg warmer 100 will now be described in detail, along with an explanation of configurations that may be adopted in the present invention.

[0031] The sleep-promoting leg warmers 100 according to the embodiment of the present invention are knitted fabrics in a generally V-shaped tube shape with both ends open, and as shown in Fig. 1, are mainly composed of a partial foot covering section 110, a first clamping section 120, a connection section 130, an ankle covering section 140, a second clamping section 150, and a shin covering section 160. These constituent parts will be described in detail below.

[0032] (1) Partial foot covering The partial foot covering part 110 is a tubular part having a double knit structure, and is a part for covering the middle part of the wearer's foot, that is, for example, an area equivalent to about 50% of the foot length (the distance from the heel side end of the foot to the end of the longest toe). As described above, the partial foot covering part 110 has a double knit structure, and therefore has a heat retention function due to an air layer existing between the layers. As shown in Figs. 1 and 2, one end of the partial foot covering part 110 is the tip of the sleep-promoting leg warmer 100, and the other end is connected to the first clamping part 120. That is, when the sleep-promoting leg warmer 100 is worn, the toe side part of the wearer's foot is exposed. The partial foot covering part 110 is designed in dimensions for a person having an average foot shape and a foot length within the range of 22 cm to 25 cm. In addition, the length of the partial foot covering part 110 is set not to exceed the base of the little toe or the head of the fifth metatarsal bone for a person with an average foot shape and a foot length of 22 cm, in order to a) promote a drop in the wearer's core body temperature and induce sleep without covering the areas where blood vessels are concentrated (for example, areas where AVA blood vessels are concentrated), and b) prevent sleep disturbance due to cold feet by slowing down the rate of temperature drop of the foot by covering areas other than the areas where blood vessels are concentrated. In this case, when the sleep-promoting leg warmer 100 is worn, the partial foot covering part 110 covers a part ranging from 63.3% to 83.1% of the foot length from the heel side. From the viewpoint of gently tightening the partial foot covering part 110 so as not to cause discomfort, it is preferable that the partial foot covering part 110 is knitted with a zokki knitting method that does not use a back yarn (FTY). From the same viewpoint, it is preferable that a rubber yarn is inserted into the zokki knitting. From the same viewpoint, it is preferable that the stretchability in the axial direction of the knitted fabric is within the range of 140% to 160% and the stretchability in the width direction is within the range of 270% to 290%. The perimeter of the partial foot-covering portion 110 is determined so as to be approximately the same as the foot circumference of a person having an average foot shape and a foot length of 23.5 cm.In addition, since the sleep-promoting leg warmer 100 is knitted on a knitting machine with a cylinder diameter of about 5 inches, the circumference of the partial leg covering part 110 is longer than that knitted on a knitting machine with a cylinder diameter of about 3.5 inches, and the tightness of the middle part of the leg is reduced. In addition, the pressure of the partial leg covering part 110 is preferably within the range of 9.50±0.49 hPa, and more preferably within the range of 9.50±0.16 hPa. The pressure was measured using a PRESSURE CONVERTER AMI3037-10, a round air pack, and an HQL adult female average foot type (average human body size dummy MSX-20 made by Torso, Nanasai Co., Ltd.) in an environment of room temperature 20°C and relative humidity 65%. Specifically, a round air pack was attached to the average foot shape of an HQL adult female, and the sleep-promoting leg warmer 100 was worn on the foot shape, and the measured pressure value displayed on the PRESSURE CONVERTER AMI3037-10 was read one minute later. Here, this measurement was performed three times, and the average value was taken as the pressure. This not only provides a firm texture, but also suppresses vertical expansion and contraction to prevent the wearer from shifting from the normal position. This allows the partial foot covering portion 110 to fit the middle part of the wearer's foot without excessively tightening the middle part of the foot, giving the wearer a comfortable feeling. In addition, the sleep-promoting leg warmer 100 has the above-mentioned structure, which makes it possible to suppress the position shift.

[0033] Incidentally, as described above, the partial foot covering part 110 covers the vicinity of the AVE blood vessels in the foot, so it is preferable that the heat retention is not too high for the above-mentioned purposes a) and b). It is particularly preferable that the partial foot covering part 110 has lower heat retention than the shin covering part 160, which is away from the area where the blood vessels of the foot are concentrated. The heat retention can be expressed by the heat retention rate (%) and the CLO value (clo). The heat retention rate (%) and the CLO value (clo) can be measured, for example, by a precise and rapid thermal property measuring device (for example, KES-F7, Thermo Lab II type, manufactured by Kato Tech Co., Ltd.) according to the dry contact method. The heat retention rate (%) and the CLO value (clo) specified below are measured under the following conditions according to the dry contact method using KES-F7, Thermo Lab II type, manufactured by Kato Tech Co., Ltd.

[0034] · Temperature and humidity in the test room: 20℃, 65%RH ·Hot plate temperature: 30℃ ·Wind speed: 30cm / sec Heating plate side: Back

[0035] The heat retention rate of the partial foot covering part 110 is preferably in the range of 30% to 60%, more preferably in the range of 45% to 55%. The CLO value of the partial foot covering part 110 is preferably in the range of 0.25clo to 1.40clo, more preferably in the range of 0.55clo to 0.60clo. On the other hand, the heat retention rate of the shin covering part 160 is preferably in the range of 40% to 70%, more preferably in the range of 55% to 65%. The CLO value of the shin covering part 160 is preferably in the range of 0.40clo to 1.90clo, more preferably in the range of 1.25clo to 1.60clo. That is, the ratio of the heat retention rate of the partial foot covering part 110 to the heat retention rate of the shin covering part 160 is preferably in the range of 0.8 to 0.9, more preferably in the range of 0.8 to 0.85. Moreover, the ratio of the CLO value of the partial foot covering part 110 to the CLO value of the shin covering part 160 is preferably within the range of 0.6 to 0.7, and more preferably within the range of 0.6 to 0.65.

[0036] The heat retention rate and CLO value of the partial foot-covering part 110 may be the same as those of the second clamping part 150, but it is preferable that they are lower than those of the second clamping part 150. In the former case, the partial foot-covering part 110 and the second clamping part 150 are Heat retention It is preferable that the second clamping part 150 is made of the same material having the above characteristics. Since the second clamping part 150 is farther from the area where the blood vessels of the foot are concentrated than the partial foot covering part 110, it does not matter if the second clamping part 150 has higher heat retention than the partial foot covering part 110. In other words, taking into consideration the relationship with the shin covering part 160, the heat retention is expressed as partial foot covering part 110≦second clamping part 150≦shin covering part 160.

[0037] Moreover, from the viewpoint of promoting comfortable sleep, it is preferable that the partial foot-covering part 110 has a fabric texture that is as soft as possible, but the back side of the partial foot-covering part 110 is prone to pilling because friction occurs with the floor when walking, and the wearer of the sleep-promoting leg warmer 100 presses the back side against the floor to stimulate acupressure points. Pilling deteriorates the feel of the fabric, which has a negative effect on promoting sleep. For this reason, it is preferable that the fabric forming the partial foot-covering part 110 is neither too soft nor too hard, and is unlikely to pill.

[0038] As a means for knitting the above-mentioned fabric, for example, a method of flat-knitting an amoze yarn can be mentioned. The pilling grade of the flat-knit amoze yarn according to the JIS L 1076A method was 4.5.

[0039] (2) First clamping part The first clamping portion 120 is a tubular portion having a double knit structure, which covers the toe side of the heel of the wearer and prevents the partial foot covering portion 110 and the ankle covering portion 140 from shifting in position (slipping down, rolling up, etc.) when the sleep-promoting leg warmer 100 is worn. As described above, the first clamping portion 120 has a double knit structure, and therefore has a heat-retaining function due to an air layer existing between the layers. As shown in Figs. 1 and 2, one end of the first clamping portion 120 is connected to the partial foot covering portion 110, and the other end is connected to the connection portion 130. In order to prevent the above-mentioned shifting in position, it is preferable that the knit fabric for knitting the first clamping portion 120 is tighter than the knit fabric for knitting the partial foot covering portion 110 and the ankle covering portion 140. For this reason, the first clamping portion 120 is preferably knitted by flat knitting using a back yarn (FTY). From the same viewpoint, it is preferable that a rubber yarn or a patterned yarn is inserted into the flat knitting. From the same viewpoint, it is preferable that the stretch rate in the axial direction of the knitted fabric is in the range of 240% to 260% and the stretch rate in the width direction is in the range of 190% to 210%. The pressure of the first clamping portion 120 is preferably in the range of 33.20±3.56hPa, and more preferably in the range of 33.20±1.19hPa. This makes it difficult for the partial foot covering portion 110 and the ankle covering portion 140 to become misaligned, and allows the partial foot covering portion 110 and the ankle covering portion 140 to fully exhibit their functions.

[0040] As shown in Figs. 1 and 2, a cross-shaped raised portion 125 is formed at the position corresponding to the acupressure point for insomnia on the sole covering side of the first clamping portion 120. The size of the raised portion 125 is preferably within a range of 25mm x 25mm to 35mm x 35mm. As described above, the first clamping portion 120 has a double knit structure, which is composed of an inner knit layer 120a and an outer knit layer 120b as shown in Fig. 3. As shown in Fig. 3, the raised portion 125 is composed of a first protrusion 125a protruding from the inner knit layer 120a toward the outer knit layer side, and a second protrusion 125b protruding from the outer knit layer 120b toward the inner knit layer side. As shown in Fig. 3, the first protrusion 125a and the second protrusion 125b are arranged opposite each other. As shown in FIG. 3 and FIG. 4, the first protrusion 125a and the second protrusion 125b are composed of a rectangular portion RG, a first wing portion W1, and a second wing portion W2. The rectangular portion RG is a rectangular parallelepiped portion composed of a knitted fabric. As shown in FIG. 3, the first protrusion 125a is designed so that the lower end surface of the rectangular portion RG is lower than the lower end surface of the first wing portion W1 and the lower end surface of the second wing portion W2, and the second protrusion 125b is designed so that the upper end surface of the rectangular portion RG is higher than the upper end surface of the first wing portion W1 and the upper end surface of the second wing portion W2. In other words, the first protrusion 125a and the second protrusion 125b are designed so that the rectangular portion RG is thicker than the first wing portion W1 and the second wing portion W2. The first wing portion W1 is a rectangular parallelepiped portion extending from the rectangular portion RG to both sides of the rectangular portion RG along the width direction Dw as shown in FIG. 4. 3, in the first protrusion 125a and the second protrusion 125b, the lower end surface or upper end surface of the first wing W1 is at the same height as the lower end surface or upper end surface of the second wing W2. As described above, the first protrusion 125a is designed so that the lower end surface of the first wing W1 is higher than the lower end surface of the rectangular portion RG, and the second protrusion 125b is designed so that the upper end surface of the first wing W1 is lower than the upper end surface of the rectangular portion RG. In other words, the first protrusion 125a and the second protrusion 125b are designed so that the first wing W1 is thinner than the rectangular portion RG.The second wing portion W2 is a rectangular parallelepiped portion extending from the rectangular portion RG in a direction Dl perpendicular to the width direction Dw, that is, in the depth direction (direction passing through the heel and toe) on both sides of the rectangular portion RG, as shown in FIG. 4. As shown in FIG. 3, the lower end surface or upper end surface of the second wing portion W2 in the first protrusion portion 125a and the second protrusion portion 125b is at the same height as the lower end surface or upper end surface of the second wing portion W2. As described above, the lower end surface of the first wing portion W1 in the first protrusion portion 125a is designed to be higher than the lower end surface of the rectangular portion RG, and the upper end surface of the first wing portion W1 in the second protrusion portion 125b is designed to be lower than the upper end surface of the rectangular portion RG. In other words, the second wing portion W2 in the first protrusion portion 125a and the second protrusion portion 125b is designed to be thinner than the rectangular portion RG. By forming the first protrusion 125a and the second protrusion 125b as described above, twelve corners CN are formed in each of the first protrusion 125a and the second protrusion 125b. Of these, four corners CN are formed by the rectangular portion RG, and eight corners CN are formed by the first wing portion W1 and the second wing portion W2.

[0041] By forming the raised portion 125 as described above, when the wearer wears the product and walks, the raised portion 125 formed by the first protrusion 125a and the second protrusion 125b rises inward (toward the skin) (at this time, the upper end surface of the rectangular portion formed by the rectangular portion RG of the first protrusion 125a and the rectangular portion RG of the second protrusion 125b is higher than the upper end surface of the first wing portion formed by the first wing portion W1 of the first protrusion 125a and the first wing portion W1 of the second protrusion 125b, and the upper end surface of the second wing portion formed by the second wing portion W2 of the first protrusion 125a and the second wing portion W2 of the second protrusion 125b). At the same time, 12 corners are formed at the positions corresponding to the corners CN of the first protrusion 125a and the second protrusion 125b on the raised portion, and these corners can efficiently stimulate the acupressure points for insomnia.

[0042] When forming the protrusions 125a, 125b from knitted fabric, it is preferable to form the protrusions 125a, 125b as follows. Specifically, the protrusions 125a, 125b are knitted by combining knitting methods such as pile knitting (including partial pile knitting and pseudo pile knitting. Partial pile knitting and pseudo pile knitting may be combined), knitting methods in which yarn is partially added with AW cut boss knitting, and yarn changes such as thick yarn. This allows the first protrusion 125a to be integrated with the inner knitted fabric layer 120a, and the second protrusion 125b to be integrated with the outer knitted fabric layer 120b, and it is possible to suppress misalignment of the protrusions 125a, 125b due to poor adhesion, etc., without increasing the number of steps for forming the protrusions 125a, 125b.

[0043] A more specific knitting method is shown in Figure 5. The area indicated by the circle and triangle marks in Figure 5 (hereinafter sometimes referred to as the "first area") is a flat knit area, knitted with a front yarn, a back yarn, and a rubber yarn. The rubber yarn is inserted in the area indicated by the triangle mark.

[0044] The area indicated by row numbers 3-11 / column numbers 1-4 (hereinafter sometimes referred to as the "21st area"), the area indicated by row numbers 12-22 / column numbers 5-8 (hereinafter sometimes referred to as the "22nd area"), the area indicated by row numbers 23-31 / column numbers 1-4 (hereinafter sometimes referred to as the "23rd area"), the area indicated by row numbers 3-11 / column numbers 129-132 (hereinafter sometimes referred to as the "24th area"), the area indicated by row numbers 12-22 / column numbers 125-128 (hereinafter sometimes referred to as the "25th area"), and the area indicated by row numbers 23-31 / column numbers 129-132 (hereinafter sometimes referred to as the "26th area") are knitted with face yarn, back yarn, rubber yarn, and pseudo pile yarn. In these areas, the pseudo pile yarn is woven in the gray areas but not in the black areas. The black areas have no artificial pile yarn woven in, which gives the fabric a pile-like texture and thickness. Also, the rubber yarn is not woven in these areas, so it lies on top of them. Because the rubber yarn is not woven in this way, it is not crushed, which gives the fabric thickness in those areas.

[0045] The area indicated by row numbers 12-22 / column numbers 1-4 (hereinafter sometimes referred to as "area 31") and the area indicated by row numbers 12-22 / column numbers 129-132 (hereinafter sometimes referred to as "area 32") are knitted with face yarn, back yarn, rubber yarn, and pseudo pile yarn. In these areas, the pseudo pile yarn is knitted in the light gray areas, but not in the dark gray areas. This is the same as the above-mentioned areas 21-26, but these areas are further changed from flat knitting to pile knitting. As a result, these areas are thicker than areas 21-26. In other words, the relationship of the thickness of each of the above-mentioned areas is as follows.

[0046] 31st area = 32nd area> 21st area = 22nd area = 23rd area = 24th area = 25th area = 26th area> 1st area.

[0047] Similarly to regions 21 to 26, no rubber thread is woven into regions 31 and 32, so the rubber thread lies above these regions. Since the rubber thread is not woven into these regions, it is not crushed, and the area becomes thicker.

[0048] (3) Connection The connecting part 130 is an annular part having a single knit structure, and plays a role of connecting the first clamping part 120 and the ankle covering part 140. From the viewpoint of not disturbing the sleep of the wearer, it is preferable that the connecting part 130 has no step and does not make the wearer feel tight. Specific examples of the connecting part 130 include a heat-sealed part and a sewn part. It is preferable that the connecting part 130 is located closer to the toe side than the heel of the wearer when the sleep-promoting leg warmer 100 is worn. This is because it is preferable that the connecting part 130 is located in a part of the wearer's foot that is not sensitive when the sleep-promoting leg warmer 100 is worn, from the viewpoint of not causing discomfort to the wearer. It is preferable that the connecting part 130 is knitted by a knitting method such as pile knitting (including partial pile knitting and pseudo pile knitting. Partial pile knitting and pseudo pile knitting may be combined.).

[0049] (4) Ankle Coverage The ankle covering part 140 is a tubular part having a single knit structure, and is a part for covering the wearer's ankle and part of the heel. As shown in Figs. 1 and 2, the ankle covering part 140 is connected to the first clamping part 120 via a connecting part 130, and the opposite side is connected to the second clamping part 150. In addition, from the viewpoint of providing moderate heat retention, the ankle covering part 140 is preferably knitted by pile knitting or the like. In addition, from the viewpoint of aligning the protuberance 125 of the first clamping part 120, it is preferable that the ankle covering part 140 is bent so as to follow the shape of the ankle and heel during sleep. It is preferable that the ankle covering part 140 has a narrowed knitting area between the entire circumference knitting areas of the ankle covering part 140, and a widened knitting area may be provided following the narrowed knitting area. In addition, the pressure of the ankle covering part 140 is Within the range of 8.17±2.62hPaIt is preferred that Within the range of 8.17±0.87hPa It is more preferable that:

[0050] (5) Second clamping section The second clamping portion 150 is a tubular portion having a single knit fabric, which covers the portion located above the wearer's ankle and prevents the ankle covering portion 140 and the shin covering portion 160 from shifting out of position (slipping down, rolling up, etc.) when the sleep-promoting leg warmers 100 are worn. As shown in Figures 1 and 2, one end of the second clamping portion 150 is connected to the ankle covering portion 140, and the other end is connected to the shin covering portion 160. The pressure of the second clamping portion 150 is Within the range of 5.63±0.51hPa It is preferred that Within the range of 5.63±0.17hPa It is more preferable that the second clamping portion 150 is knitted by a knitting method such as pile knitting (including partial pile knitting and pseudo pile knitting. Partial pile knitting and pseudo pile knitting may be combined).

[0051] 1 and 2, an acupoint stimulating portion 155 is formed at a position corresponding to the Sanyinjiao acupoint on the side of the second clamping portion 150. The size of the acupoint stimulating portion 155 is preferably within a range of 25 mm×25 mm to 35 mm×35 mm.

[0052] (6) Shin Cover The shin covering part 160 is a tubular part with a double knit structure, and is a part for covering the shins of the wearer. As described above, because the shin covering part 160 has a double knit structure, it has a heat retention function due to the air layer that exists between the layers. As shown in Figures 1 and 2, one end of the shin covering part 160 is connected to the second pressure-clamping part 150, and the other end forms the base end of the sleep-promoting leg warmer 100. In order to prevent the shin covering part 160 from shifting out of position (slipping down, rolling up, etc.) when the sleep-promoting leg warmer 100 is worn, the pressure of the shin covering part 160 is Within the range of 4.80±3.13hPa It is preferred that Within the range of 4.80±1.04hPa It is more preferable that:

[0053] Incidentally, since the shin covering part 160 is far from the area where the blood vessels of the foot are concentrated, the higher the heat retention, the better. That is, as described above, the shin covering part 160 preferably has a higher heat retention than the partial leg covering part 110, and more preferably has the highest heat retention expected for the knitted fabric.

[0054] Moreover, from the viewpoint of promoting comfortable sleep, it is preferable that the shin covering part 160 has a fabric texture that is as soft as possible. Since pilling causes the fabric texture to deteriorate and has a negative effect on promoting sleep, it is preferable that the fabric forming the shin covering part 160 is one that is resistant to pilling. However, fabrics that are resistant to pilling tend to have a hard fabric texture, and if the fabric texture is too hard, it has a negative effect on promoting sleep. Therefore, it is not necessary that the fabric forming the shin covering part 160 should not pill at all, but it is preferable that an appropriate amount of pilling occurs.

[0055] In addition, the fabric forming the shin covering part 160 can be softer than the fabric forming the partial foot covering part 110 because there is no need to consider friction with the floor or the like when walking. The fabric forming the shin covering part 160 may be thicker or heavier than the fabric forming the partial foot covering part 110. The fabric forming the shin covering part 160 preferably has a smaller mean friction coefficient variation value (MMD value) than the fabric forming the partial foot covering part 110 and a smoother surface. The fabric forming the shin covering part 160 preferably has a smaller surface irregularity than the fabric forming the partial foot covering part 110. The smaller surface irregularity of the fabric can be confirmed by a smaller mean deviation (SMD) of the surface roughness based on the KES method. The fabric forming the shin covering part 160 preferably contains more air and is fluffier than the fabric forming the partial foot covering part 110. The larger value of the compression energy (WC) based on the KES method can be confirmed by a larger value of the compression energy (WC). The fabric forming the shin covering part 160 may have the same recovery (RC) value as the fabric forming the partial foot covering part 110. The recovery can be evaluated based on the KES method.

[0056] As a means for knitting the above-mentioned fabric, for example, a method of placing acrylic wool yarn on a sinker can be mentioned. The pilling grade of the acrylic wool yarn placed on a sinker knit was 2.5 according to the JIS L 1076A method.

[0057] <Compression ratio of each part> As mentioned above, preferred pressures are specified for each part, and the ratios of these, i.e., pressure of shin covering part 160:pressure of ankle covering part 140:pressure of partial foot covering part 110:pressure of second clamping part 150:pressure of first clamping part 120, are preferably 4.80±3.13hPa:8.17±2.62hPa:9.50±0.49hPa:5.63±0.51hPa:33.20±3.56hPa, and more preferably 4.80±1.04hPa:8.17±0.87hPa:9.50±0.16hPa:5.63±0.17hPa:33.20±1.19hPa. In other words, it is preferable that the pressure of the first clamping portion 120 is higher than the pressure of the partial foot covering portion 110, the pressure of the first clamping portion 120 is higher than the pressure of the ankle covering portion 140, the pressure of the ankle covering portion 140 is higher than the pressure of the second clamping portion 150, and the pressure of the second clamping portion 150 is higher than the pressure of the shin covering portion 160.

[0058] <Specific method for forming the sleep-promoting leg warmer according to the embodiment of the present invention> The partial foot covering portion 110 and the first pressed portion 120 can be formed, for example, as follows: (i) knitting from the end of the first pressed portion 120 on the connection portion side to the end of the first pressed portion 120 on the partial foot covering portion side to form an outer knitted layer 120b of the first pressed portion 120, then switching yarn and knitting from the end of the partial foot covering portion 110 on the first pressed portion side to the tip of the partial foot covering portion 110 to form an outer knitted layer of the partial foot covering portion 110, and then knitting the partial foot covering portion 110 as is. The inner knitted layer of the partial foot covering portion 110 is knitted by knitting from the tip of the covering portion 110 to the end of the partial foot covering portion 110 on the first clamping portion side, and then the yarn is switched and knitted from the end of the first clamping portion 120 on the partial foot covering portion side to the end of the first clamping portion 120 on the connection portion side to knit the inner knitted layer 120a of the first clamping portion 120. The inner knitted layers of the partial foot covering portion 110 and the first clamping portion 120 are knitted by knitting the outer knitted layers of the partial foot covering portion 110 and the first clamping portion 120. (ii) knitting from the end of the first clamping portion 120 on the connection portion side to the end of the first clamping portion 120 on the partial foot covering portion side to knit an inner knitted layer 120a of the first clamping portion 120, then switching yarn and knitting from the end of the partial foot covering portion 110 on the first clamping portion side to the tip of the partial foot covering portion 110 to knit an inner knitted layer of the partial foot covering portion 110, and then knitting from the tip of the partial foot covering portion 110 to the tip of the partial foot covering portion 110 to knit an inner knitted layer of the partial foot covering portion 110. Examples of methods include knitting the outer knitted layer of the partial foot covering part 110 to the end on the first clamping part side, switching yarn and knitting from the end of the first clamping part 120 on the partial foot covering part side to the end of the first clamping part 120 on the connection part side to knit the outer knitted layer 120b of the first clamping part 120, and pushing the inner knitted layers of the partial foot covering part 110 and the first clamping part 120 into the outer knitted layers of the partial foot covering part 110 and the first clamping part 120.

[0059] The ankle covering part 140, the second clamping part 150 and the shin covering part 160 can be formed, for example, as follows: (i) knitting the ankle covering part 140 from the end of the ankle covering part 140 on the connection part side to the end of the ankle covering part 140 on the second clamping part side, then switching the yarn and knitting the second clamping part 150 from the end of the second clamping part 150 on the ankle covering part side to the end of the second clamping part 150 on the shin covering part side, and then knitting the second clamping part 150 with the yarn Then, the outer knitted layer of the shin covering part 160 is knitted from the end of the shin covering part 160 on the second pressing portion side to the base end of the shin covering part 160, and the inner knitted layer of the shin covering part 160 is knitted by continuing the knitting from the base end of the shin covering part 160 to the end of the shin covering part 160 on the second pressing portion side. The inner knitted layer of the shin covering part 160 is then pushed into the outer knitted layer of the shin covering part 160 and the inner knitted layer is knitted at the end on the second pressing portion side. and (ii) a method in which the inner knitted layer of the shin covering part 160 is knitted from the end of the shin covering part 160 on the second clamping portion side to the base end of the shin covering part 160 to knit the outer knitted layer of the shin covering part 160, and then the base end of the shin covering part 160 is knitted from the end of the shin covering part 160 on the second clamping portion side to the end of the shin covering part 160 on the second clamping portion side to knit the outer knitted layer of the shin covering part 160, and then the yarn is switched and knitted from the end of the second clamping part 150 on the shin covering part side to the end of the second clamping part 150 on the ankle covering part side to knit the second clamping part 150, and then the yarn is switched again and knitted from the end of the ankle covering part 140 on the second clamping portion side to the end of the ankle covering part 140 on the connection portion side to knit the ankle covering part 140, and then the inner knitted layer of the shin covering part 160 is pushed into the outer knitted layer of the shin covering part 160 and the inner knitted layer and the outer knitted layer are connected at the end on the second clamping portion side.

[0060] The method for connecting the first clamping part 120 and the ankle covering part 140 is as explained above in the section "(3) Connection part."

[0061] <Features of the sleep-promoting leg warmer according to the embodiment of the present invention> (1) The sleep-promoting leg warmers 100 according to the embodiment of the present invention are provided with a raised portion 125 at a position on the first clamping portion 120 that corresponds to the acupressure point for insomnia, and a corner is formed on the raised portion 125. Therefore, when the sleep-promoting leg warmers 100 are worn before going to bed or when the wearer walks lightly before going to bed, the wearer can more effectively sense that the acupressure point for insomnia is being stimulated than with conventional leg warmers.

[0062] (2) In the sleep-promoting leg warmer 100 according to the embodiment of the present invention, the protruding portion 125 is composed of a first protruding portion 125a protruding from the inner knitted layer 120a toward the outer knitted layer side, and a second protruding portion 125b protruding from the outer knitted layer 120b toward the inner knitted layer side. Therefore, in the sleep-promoting leg warmer 100, even if the yarn comes out during knitting of the protruding portions 125a and 125b, the yarn can be prevented from being exposed to the skin side or the ground surface side. Therefore, in the sleep-promoting leg warmer 100, the yarn knitting the protruding portions 125a and 125b can be prevented from being caught on the nails or fingers of the wearer, or on the floor. Therefore, in the sleep-promoting leg warmer 100, it is easy to wear and the yarn is not easily unraveled.

[0063] (3) In the sleep-promoting leg warmer 100 according to the embodiment of the present invention, the pressure ratios of the shin covering part 160, the ankle covering part 140, the partial foot covering part 110, the second clamping part 150, and the first clamping part 120 were 4.80±3.13hPa:8.17±2.62hPa:9.50±0.49hPa:5.63±0.51hPa:33.20±3.56hPa. As a result of intensive research by the inventors of the present application, it has become clear that the sleep-promoting leg warmer 100 having such a pressure ratio is unlikely to slip off from the wearer's feet, ankles, the upper part of the ankles, and the shins while falling asleep or staying asleep, without compressing the wearer's feet, ankles, the upper part of the ankles, and the shins to an uncomfortable degree. Therefore, the sleep-promoting leg warmers 100 are unlikely to slip off from the feet, ankles, upper ankle areas and shins while falling asleep or staying asleep, and can provide the wearer with a comfortable way to fall asleep and stay asleep.

[0064] (4) In the sleep-promoting leg warmer 100 according to the embodiment of the present invention, there is no region of stronger pressure than the partial foot covering part 110 on the side opposite the first clamping part of the partial foot covering part 110. On the other hand, in conventional foot wearing devices, a region of stronger pressure than the part corresponding to the partial foot covering part is often provided on the tip side of the part corresponding to the partial foot covering part to prevent the device from slipping when worn.

[0065] <Modification> (A) Although the sleep-promoting leg warmers 100 according to the above embodiment were designed with the wearer in mind whose foot length was within the range of 22 cm to 25 cm, the size range may be designed in increments of 1 cm. That is, for example, three sizes may be designed for wearers whose foot length is within the range of 22 cm to 23 cm, 23 cm to 24 cm, and 24 cm to 25 cm.

[0066] (B) In the sleep-promoting leg warmer 100 according to the previous embodiment, the length of the partial foot-covering portion 110 is set not to exceed the base of the little toe of a person having an average foot shape and a foot length within the range of 22 cm to 25 cm, but it may be set to a length that covers the tip of the little toe of a person having an average foot shape and a foot length of 22 cm. In this case, when a person having an average foot shape and a foot length of 25 cm wears the sleep-promoting leg warmer 100, the part up to the base of the little toe of the person will be covered.

[0067] (C) In the sleep-promoting leg warmer 100 according to the previous embodiment, the partial foot-covering portion 110 is designed to cover the entire circumference of the heel side of the wearer's foot, but the sleep-promoting leg warmer 100 may be designed to cover at least a portion of the arch, or may be designed to cover at least the entire arch.

[0068] (D) In the sleep-promoting leg warmer 100 according to the previous embodiment, the first clamping portion 120 is provided between the partial foot covering portion 110 and the connecting portion 130 in order to prevent the partial foot covering portion 110 and the ankle covering portion 140 from shifting out of position, but the first clamping portion may be provided at the toe side of the partial foot covering portion 110 in order to prevent only the partial foot covering portion 110 from shifting out of position, or the first clamping portion may be provided inside the ankle covering portion 140 in order to prevent only the ankle covering portion 140 from shifting out of position. In the former case, it is preferable to use a knitting structure similar to that of a typical single-knit open-toe sock, and in the latter case, it is preferable to use a knitting structure similar to that of a double-welted pouch portion as disclosed in Japanese Patent No. 6195139.

[0069] (E) In the sleep-promoting leg warmer 100 according to the previous embodiment, the partial leg-covering portion 110, the first clamping portion 120, and the shin-covering portion 160 have a double knit structure, but these portions 110, 120, and 160 may have a single knit structure. In such a case, the partial leg-covering portion 110 is preferably knitted with a highly heat-retaining knit such as pile knitting, knitted with highly heat-retaining yarn such as acrylic yarn or wool, or knitted with moisture-absorbing heat-generating yarn such as eks (registered trademark).

[0070] (F) In the sleep-promoting leg warmer 100 according to the previous embodiment, the partial foot covering portion 110, the first clamping portion 120, and the shin covering portion 160 have a double knit structure, but these portions 110, 120, and 160 may have a multi-knit structure of three or more layers. In such a case, yarns of different materials may be used for each knit layer to adjust the heat retention, etc.

[0071] (G) In the sleep-promoting leg warmer 100 according to the previous embodiment, the connection portion 130, the ankle covering portion 140 and the second clamping portion 150 have a single knit structure, but these portions 130, 140, 150 may also have a double knit structure.

[0072] (H) Although not specifically mentioned in the previous embodiment, the heel side region of the partial foot covering part 110 may be knitted into a heat generating knitted fabric or a heat retaining knitted fabric, and the partial foot covering part 110 may be knitted into a knitted fabric with gradually lower heat generating or heat retaining properties toward the tip side of the partial foot covering part 110. By knitting the partial foot covering part 110 in this way, efficient heat dissipation can be achieved by increasing the body temperature of the wearer while preventing the area around the toes, which needs heat dissipation, from becoming too warm.

[0073] (I) In the sleep-promoting leg warmer 100 according to the previous embodiment, the shape of the raised portion 125 is a cross-shaped column, but the shape of the raised portion is not particularly limited as long as it has corners, and may be, for example, a polygonal shape such as a triangular column, a square column, a pentagonal column, a hexagonal column, an octagonal column, or a star-shaped column, or a cylindrical shape. The corners of the raised portion 125 do not have to be recognizable only in planar perspective, but only need to be recognizable when viewed from all 360° directions. In addition, the corners in such a shape may be rounded, but from the viewpoint of effectively stimulating the acupressure points for sleep loss, it is preferable that the radius of the rounded corner is 15 mm or less. The lower limit of the radius of the rounded corner is not particularly specified, but is, for example, 0.1 mm.

[0074] (J) Although the sleep-promoting leg warmers 100 according to the above embodiment are provided with only one relatively large protuberance 125, a plurality of relatively small protuberances may be provided.

[0075] (K) In the sleep-promoting leg warmers 100 according to the previous embodiment, the first protrusion 125a was designed so that the lower end surface of the rectangular portion RG was lower than the lower end surface of the first wing portion W1 and the lower end surface of the second wing portion W2, and the second protrusion 125b was designed so that the upper end surface of the rectangular portion RG was higher than the upper end surface of the first wing portion W1 and the upper end surface of the second wing portion W2. However, the lower end surface of the rectangular portion RG in the first protrusion 125a may be at the same height as the lower end surface of the first wing portion W1 and the lower end surface of the second wing portion W2, and the upper end surface of the rectangular portion RG in the second protrusion 125b may be at the same height as the upper end surface of the first wing portion W1 and the upper end surface of the second wing portion W2 (i.e., the first protrusion 125a and the second protrusion 125b may be at the same height as the upper end surface of the first wing portion W1 and the upper end surface of the second wing portion W2). The opposing surfaces of the protrusion 125b may be flat surfaces. In other words, the rectangular portion RG may have the same thickness as the first wing W1 and the second wing W2 in the first protrusion 125a and the second protrusion 125b.) The lower end surface of the rectangular portion RG in the first protrusion 125a may be higher than the lower end surface of the first wing W1 and the lower end surface of the second wing W2, and the upper end surface of the rectangular portion RG in the second protrusion 125b may be lower than the upper end surface of the first wing W1 and the upper end surface of the second wing W2 (i.e., the rectangular portion RG may be thinner than the first wing W1 and the second wing W2 in the first protrusion 125a and the second protrusion 125b).

[0076] (L) In the sleep-promoting leg warmer 100 according to the previous embodiment, the first protrusion 125a protrudes from the inner knitted layer 120a toward the outer knitted layer side, and the second protrusion 125b protrudes from the outer knitted layer 120b toward the inner knitted layer side, but the first protrusion may protrude from the inner knitted layer 120a toward the inside, i.e., the skin side, and the second protrusion may protrude from the outer knitted layer 120b toward the inner knitted layer side, or the first protrusion may protrude from the inner knitted layer 120a toward the outer knitted layer side, and the second protrusion may protrude from the outer knitted layer 120b toward the outside, i.e., the opposite side to the skin side, or the first protrusion may protrude from the inner knitted layer toward the inside, i.e., the skin side, and the second protrusion 125b may protrude from the outer knitted layer 120b toward the outside, i.e., the opposite side to the skin side. In any of the above cases, the first protrusion and the second protrusion must overlap in a plan view.

[0077] (M) In the sleep-promoting leg warmer 100 of the previous embodiment, the first clamping portion 120 has a double knit structure with protrusions 125a, 125b formed therebetween, but the first clamping portion 120 may have a single knit structure with protrusions formed on the inside (skin side) or outside.

[0078] (N) In the sleep-promoting leg warmer 100 according to the previous embodiment, the angle CN between the first wing W1 and the second wing W2 of the protrusions 125a and 125b is a right angle, but instead of the protrusions 125a and 125b, protrusions 225a and 225b may be provided in which the angle CN between the first wing W1 and the second wing W2 is an acute angle, as shown in FIG. 6. The angle CN may be an obtuse angle, but if the obtuse angle is too large, the effect of the present invention will be reduced, so this is not preferred. The angle CN between the rectangular portion RG of the protrusions 125a and 125b is a right angle, but the angle CN between the rectangular portion RG may be an acute angle. The angle CN may be an obtuse angle, but if the obtuse angle is too large, the effect of the present invention will be reduced, so this is not preferred.

[0079] (O) In the sleep-promoting leg warmers 100 according to the previous embodiment, the raised portions 125 are made of knitted fabric, but the raised portions 125 may be made of, for example, polyvinyl chloride resin, silicone resin, elastomer resin, rubber, etc. In such cases, the raised portions 125 may be made of resin or rubber containing magnetic particles or magnetic powder in order to obtain the health benefits of magnetism.

[0080] (P) In the sleep-promoting leg warmer 100 according to the previous embodiment, the raised portion 125 stimulates the acupuncture point for insomnia with pressure, but the raised portion may stimulate the acupuncture point for insomnia with heat, with cold, or with electricity. The raised portion may stimulate the acupuncture point for insomnia with pressure and heat. In order to provide the raised portion with a heat stimulating function, it is necessary to knit the raised portion using heat-generating yarn such as acrylate fiber, wool, cupra (registered trademark), rayon (registered trademark), etc.

[0081] (Q) In the sleep-promoting leg warmers 100 according to the previous embodiment, the raised portions 125 are provided at positions corresponding to the acupuncture points for insomnia, but the raised portions may also be provided at positions corresponding to acupuncture points such as Sanyinjiao and Yongquan.

[0082] (R) In the sleep-promoting leg warmer 100 according to the previous embodiment, a cross-shaped protuberance 125 is formed on the sole-covering side of the first clamping portion 120, but an X-shaped protuberance may be formed instead. In an X-shaped protuberance, the first and second wings do not extend along the axial and width directions as shown in Fig. 2, but extend, for example, along a direction inclined by 45° from those directions. Note that in an X-shaped protuberance, the first and second wings may extend along a direction other than the above.

[0083] (S) In the sleep-promoting leg warmer 100 according to the previous embodiment, the partial leg-covering portion 110 was designed to be suitable for people with average foot shapes and foot lengths in the range of 22 cm to 25 cm, but may also be designed to be suitable for people with other foot shapes and lengths.

[0084] The above-described modified examples may be adopted individually or in appropriate combinations within the scope of the present invention.

Claims

1. A foot attachment comprising: a first foot covering part that covers at least a portion of the toe side of the foot; and a second foot covering part that covers the heel side of the foot and is continuous with the first foot covering part, wherein the second foot covering part exerts a higher pressure than the first foot covering part.

2. The foot attachment according to claim 1, wherein the pressure of the first foot covering part and the pressure of the second foot covering part are 9.50±0.49 hPa and 33.20±3.56 hPa, respectively.

3. The foot attachment according to claim 1, further comprising an ankle covering part that covers the ankle and is continuous with the second foot covering part, and the second foot covering part exerts a higher pressure than the ankle covering part.

4. The foot attachment according to claim 3, wherein the pressure of the second foot covering part: the pressure of the ankle covering part is 33.20±3.56 hPa: 8.17±2.62 hPa.

5. The foot attachment according to claim 3, further comprising an upper-ankle covering part that covers the upper part of the ankle and is continuous with the ankle covering part, and the pressure applied by the ankle covering part is higher than that of the upper-ankle covering part.

6. The foot attachment according to claim 5, wherein the pressure of the ankle covering part is 8.17±2.62 hPa: 5.63±0.51 hPa.

7. The foot attachment according to claim 5, further comprising a shin covering part that covers at least a part of the shin and is continuous with the above-ankle covering part, and the above-ankle covering part exerts a higher pressure than the above-shin covering part.

8. The foot attachment according to claim 7, wherein the pressure of the ankle covering part and the pressure of the shin covering part are 5.63±0.51 hPa and 4.80±3.13 hPa, respectively.

9. The foot attachment according to any one of claims 1 to 8, which is used to promote sleep.

10. The foot attachment according to claim 9, which is cylindrical and has openings on both sides.