Limb wearable device

Abstract

To provide a limb wearable device that does not easily cool the limbs even when moving from a warm place to a cold place, for example, during cold seasons.SOLUTION: Limb wearable devices 100, 100m, 100p are limb wearable devices that cover a part or the whole of a limb, and include: groove forming parts 131, 131p; and closure parts 132, 132m, 133m, P1p. In the groove forming part, at least one first groove G1, G1p extending toward the insertion side on the inner side is formed. The closure part is formed on the insertion side of the groove forming part. The closure part closes the end on a part or all of grooves on the insertion side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a limb attachment that covers part or all of a leg or arm. [Background technology]

[0002] In the past, it has been proposed that "in the manufacture of thick socks with excellent heat retention, knitting the opening and the shin covering portion connected to the opening with a pile sinker knitting method is used to improve comfort" (see, for example, JP 2016-160537 A, JP 2012-122163 A, Registered Utility Model Nos. 3166103 A, and JP 2002-038304 A). An example of such a knitting method is a method in which the face yarn is knitted with a pile sinker knitting method, and an elastic yarn (rubber yarn or covering yarn) as the back yarn is knitted in while skipping one to three stitches in the course direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-160537 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-122163 [Patent Document 3] Registered Utility Model No. 3166103 [Patent Document 4] Japanese Patent Application Laid-Open No. 2002-038304 Summary of the Invention [Problem to be solved by the invention]

[0004] The sock opening and shin-covering sections knitted as described above have multiple ridges and multiple grooves formed parallel to the axial direction. Therefore, in cold weather, for example, when moving from a warm place to a cold place, convection heat transfer occurs, with low-density warm air rising and high-density cold air descending. This causes the warm air contained in the grooves to escape from the top of the grooves in a relatively short time, while the cold air from outside penetrates along the grooves into the bottom of the sock, potentially cooling the shins. This same phenomenon can also occur with arm warmers and other armwear.

[0005] An object of the present invention is to provide a limb attachment that prevents limbs from getting cold even when, for example, moving from a warm place to a cold place during cold season. [Means for solving the problem]

[0006] A limb attachment according to a first aspect of the present invention is an attachment that covers part or all of a limb and includes a groove-forming portion and a closing portion. The term "limb" here refers to an arm or a leg. The term "leg" here refers to the region from the base of the thigh to the toes of the lower foot. A "limb attachment" refers to an attachment worn on at least one of a leg or an arm. This "limb attachment" can include leg attachments that cover part or all of a leg, and arm attachments that cover part or all of an arm. When the limb attachment is a leg attachment, the leg attachment can also include those with panty parts. Examples of leg attachments include socks (socks, knee-high socks, etc.), leg warmers, stockings, and tights. Examples of arm attachments include arm covers and arm warmers. At least one first groove extending toward the insertion opening is formed inside the groove-forming portion. The insertion opening refers to the edge, not the region. When the limb attachment is a leg attachment, the insertion opening is the opening. Furthermore, as a result of the formation of the groove, a ridge portion is formed adjacent to the groove. In other words, the groove and ridge portion are formed as a set. This can also be expressed as having striped projections and depressions extending in one direction in the groove-forming portion. As described above, the groove is defined as extending toward the insertion opening, but this does not limit the groove-forming direction to being parallel to the cylindrical axis of the limb attachment. In other words, the groove-forming direction does not have to be parallel to the cylindrical axis of the limb attachment, as long as it does not deviate from the gist of the present invention. The blocking portion is formed on the insertion opening side of the groove-forming portion. This blocking portion closes the insertion opening side ends of some or all of the grooves. When the insertion opening side ends of all the grooves are blocked by the blocking portion, the heat retention of the limb attachment can be improved. On the other hand, when the insertion opening side ends of some of the grooves are blocked by the blocking portion, not only the heat retention can be improved but also stuffiness can be reduced.

[0007] In the limb attachment described above, a closed section is formed on the insertion opening side of the groove-forming section. Therefore, with this limb attachment, even when moving from a warm place to a cold place in cold weather, the warm air contained in the groove is less likely to escape, and cold air is less likely to enter the sock along the groove from the outside. Therefore, this limb attachment does not cool the limb even in such situations.

[0008] A limb wearing device according to a second aspect of the present invention is the limb wearing device according to the first aspect, wherein at least one second ridge extending toward the insertion opening is formed on the inside of the closing portion, and some or all of the second ridges of the closing portion close the insertion opening side ends of some or all of the first grooves of the groove forming portion.

[0009] The limb orthosis having the above-described structure can be knitted using a conventional knitting machine, and therefore can be manufactured without incurring equipment installation costs.

[0010] A limb wearing device according to a third aspect of the present invention is the limb wearing device according to the first or second aspect, wherein the groove forming portion is knitted to form a first groove and a first ridge portion adjacent to the first groove, and the closing portion is knitted to form a second ridge portion and a second groove adjacent to the second ridge portion at a formation pitch different from the formation pitch of the first groove and the first ridge portion.

[0011] When the above-mentioned knitting method is used, it is possible to knit a limb attachment in which the ends of some of the grooves on the opening side are closed by closing sections. This makes it possible to provide a limb attachment that not only exhibits relatively high heat retention but also reduces stuffiness. Note that this knitting method can also be used to knit a limb attachment in which the ends of all of the grooves on the opening side are closed by closing sections.

[0012] A limb wearing device according to a fourth aspect of the present invention is the limb wearing device according to the first or second aspect, wherein the groove forming portion is knitted to form a first groove and a first ridge portion adjacent to the first groove, and the closing portion is knitted to form a second groove at a position shifted from the position where the first groove is formed, and a second ridge portion adjacent to the second groove at a position shifted from the position where the first ridge is formed.

[0013] When the above-mentioned knitting method is used, it is possible to knit a limb attachment in which the ends of all grooves on the opening side are closed with closing portions, thereby providing a limb attachment that exhibits high heat retention.

[0014] A limb wearing device according to a fifth aspect of the present invention is the limb wearing device according to the third or fourth aspect, wherein the groove forming portion and the closing portion are knitted by pile sinker knitting.

[0015] Therefore, the limb orthosis can be manufactured using a conventional knitting machine, and therefore, the limb orthosis can be manufactured without incurring equipment installation costs.

[0016] A limb wearing device according to a sixth aspect of the present invention is the limb wearing device according to the third or fourth aspect, wherein the groove forming portion and the closing portion are formed by inserting an elastic yarn into the knitted fabric in a skipped stitch manner using pile sinker knitting.

[0017] Therefore, the limb orthosis can be manufactured using a conventional knitting machine, and therefore, the limb orthosis can be manufactured without incurring equipment installation costs.

[0018] A limb wearing device according to a seventh aspect of the present invention is the limb wearing device according to the first aspect, and has an inner layer and an outer layer. The inner layer is the layer that comes into contact with the skin, i.e., the innermost layer. The outer layer is disposed outside the inner layer. Any number of outer layers may be provided. The inner layer is provided with a groove-forming portion and a blocking portion.

[0019] In this limb orthosis, an air layer can be formed between the inner and outer layers, which further improves the heat retention of the limb orthosis. When multiple outer layers are provided, an air layer can also be formed between the outer layers, which further improves the heat retention. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a side view of a knee-high sock according to an embodiment of the present invention. [Figure 2] 1 is a plan view of knee socks according to an embodiment of the present invention when laid flat. FIG. [Figure 3] FIG. 2 is a conceptual cross-sectional view taken along line II in FIG. [Figure 4] 2 is a diagram in which a conceptual development view of a II portion of FIG. 1 and a development view of a II-II portion of FIG. 1 are arranged one above the other. [Figure 5] 1 is a diagram showing the structure of the vicinity of the boundary between the partial leg-covering portion and the opening portion of a knee-high sock according to an embodiment of the present invention. FIG. [Figure 6] FIG. 10 is a diagram showing a conceptual partial cross-sectional development of the main body portion of the partial leg-covering portion of a knee-high sock according to modified example (B) and a conceptual partial cross-sectional development of the opening portion, arranged one above the other. [Figure 7] FIG. 10 is a diagram showing a conceptual partial cross-sectional development of the main body portion of the partial leg-covering portion of a knee-high sock according to modified example (C) and a conceptual partial cross-sectional development of the opening portion, arranged one above the other. [Figure 8] FIG. 10 is a side view of knee socks according to modified example (D). [Figure 9] This is a diagram showing a conceptual partial cross-sectional development of the main body portion of the partial leg-covering portion of a high sock relating to variant example (D), a conceptual partial cross-sectional development of the closure portion, and a conceptual partial cross-sectional development of the opening portion arranged one above the other. [Figure 10] This is a diagram showing a conceptual partial cross-sectional development of the main body portion of the partial leg-covering portion of a high sock relating to variant example (D), a conceptual partial cross-sectional development of the closure portion, and a conceptual partial cross-sectional development of the opening portion arranged one above the other. [Figure 11]This is a diagram showing a conceptual partial cross-sectional development of the main body portion of the partial leg-covering portion of a high sock relating to variant example (D), a conceptual partial cross-sectional development of the closure portion, and a conceptual partial cross-sectional development of the opening portion arranged one above the other. [Figure 12] FIG. 10 is a side view of knee socks according to modified example (E). DETAILED DESCRIPTION OF THE INVENTION

[0021] <Configuration of knee socks according to an embodiment of the present invention> The knee-high socks 100 according to the embodiment of the present invention are knitted fabrics in a roughly V-shaped tube with one end (the end closest to the opening) open. These knee-high socks 100 were invented with the aim of keeping the legs warm and preventing them from getting cold.

[0022] 1 and 2, knee socks 100 according to an embodiment of the present invention are mainly composed of a foot-covering portion 110, a clamping portion 120, a connecting portion 140, and a partial leg-covering portion 130. These constituent parts will be described in detail below.

[0023] (1) Foot covering The foot-covering part 110 is a tubular part having a single knitted structure, and is a part for covering the wearer's foot. As shown in Figs. 1 and 2, one end of the foot-covering part 110 is closed, and the other end is connected to the clamping part 120. From the viewpoint of gently clamping the foot-covering part 110 to avoid discomfort, it is preferable that the foot-covering part 110 be knitted without plating the backing yarn (FTY). From the same viewpoint, it is also preferable that rubber yarn be inserted into the knitted fabric to give the knitted fabric stretchability.

[0024] (2) Clamping part The clamping portion 120 is a tubular portion having a single knit structure that covers the area slightly above the wearer's ankle and prevents the partial leg-covering portion 130 from shifting position (slipping down, etc.) when the knee-high socks 100 are worn. As shown in Figures 1 and 2, one end of the clamping portion 120 is connected to the foot-covering portion 110, and the other end is connected to the partial leg-covering portion 130. Also, as shown in Figures 1 and 2, a Sanyinjiao stimulating portion 122 is formed on the side of the clamping portion 120 at a position corresponding to the Sanyinjiao acupoint.

[0025] (3) Connection The connecting portion 140 is a tubular portion having a single knitted structure, and serves to connect the clamping portion 120 and the partial leg covering portion 130.

[0026] (4) Partial leg covering The partial leg-covering portion 130 is a tubular portion having a single knit structure, and when the knee-high socks 100 are worn, it covers the wearer's leg from above the ankle to slightly above the knee. Furthermore, this partial leg-covering portion 130 is the layer that comes into contact with the skin when the knee-high socks 100 are worn, and as shown in Figures 1 and 2, it is mainly formed of a main body portion 131 and an opening portion 132. These components will be described in detail below. As shown in Figures 1 and 2, one end of the partial leg-covering portion 130 is connected to the clamping portion 120, and the other end is open and forms the opening of the knee-high socks 100.

[0027] (4-1) Main body The main body portion 131 is a rib knit fabric knitted by inserting an elastic yarn into the knit fabric with skipped stitches using pile sinker knitting. As shown in FIGS. 1 to 3, the main body portion 131 has multiple rib portions F1 and grooves G1 formed along the wale direction. That is, as shown in FIGS. 1 to 3, the main body portion 131 has multiple rib portions F1 and multiple grooves G1 arranged alternately along the circumferential direction. The main body portion 131 is preferably knitted using a sock knitting machine with a cylinder diameter of 3.5 inches or more, and more preferably with a sock knitting machine with a cylinder diameter of 5 inches or more. When the cylinder diameter of the knitting machine is relatively large, the diameter of the tubular knit fabric that constitutes the partial leg-covering portion 130 also becomes larger, resulting in a comfortable fit even when the knee-high socks 100 are thick. The main body portion 131 is preferably raised to provide a pleasant feel against the skin.

[0028] It is preferable to use a yarn that is soft to the touch as the face yarn for knitting this main body portion 131. Examples of yarns that are soft to the touch include spun yarns of rayon or acrylic, blended yarns in which rayon or acrylic is blended with other materials such as wool, short-staple spun yarns such as extra-long staple cotton yarns, and long-staple yarns such as nylon yarns and polyester yarns. High-multifilament yarns are particularly preferable as long-staple yarns. Other examples of yarns that are soft to the touch include decorative twisted yarns such as mohair yarns and tam yarns.

[0029] Furthermore, the main body 131 is preferably knitted so as not to be too thick, in order to give it a soft and smooth texture.

[0030] Furthermore, in order to knit this main body portion 131 as a rib knit fabric using pile sinker lay knitting, an elastic yarn is used in addition to the face yarn. In one stitch, the elastic yarn is inserted in the course direction between the sinker loop of a stitch knitted by the face yarn and the needle loop of a stitch knitted by the face yarn adjacent to that sinker loop in the wale direction. In another stitch, the elastic yarn is inserted while skipping stitches in both the sinker loop of a stitch knitted by the face yarn and the needle loop of a stitch knitted by the face yarn adjacent to that sinker loop in the wale direction. The stitch in which the elastic yarn is inserted between the sinker loop and the needle loop becomes the stitch that forms the rib portion F1 of the rib knit fabric, and the stitch in which the sinker loop and the needle loop are also skipped becomes the stitch that forms the groove G1 of the rib knit fabric. Here, the elastic yarn is preferably inserted into the knitted fabric while skipping stitches within a range of 1 to 20 in the course direction, more preferably inserted into the knitted fabric while skipping stitches within a range of 1 to 15 in the course direction, even more preferably inserted into the knitted fabric while skipping stitches within a range of 1 to 10 in the course direction, even more preferably inserted into the knitted fabric while skipping stitches within a range of 1 to 6 in the course direction, and even more preferably inserted into the knitted fabric while skipping stitches within a range of 1 to 3 in the course direction. Skipping the elastic yarn within a range of 1 to 6 in the course direction allows the rib knitted fabric to have an appropriate tubular diameter. Furthermore, skipping the elastic yarn within a range of 1 to 3 in the course direction allows the rib knitted fabric to have appropriate stretchability, which in turn allows the main body portion 131 to have an appropriate fit.

[0031] (4-2) Opening The opening 132 is disposed on top of the main body 131. The configuration of this opening 132 is similar to that of the main body 131, but as shown in FIG. 4 , a rib F2 of the opening 132 is formed in the knitting course direction at a position corresponding to the groove G1 of the main body 131, and a groove G2 of the opening 132 is formed in the knitting course direction at a position corresponding to the rib F1 of the main body 131. Such knitting can be performed seamlessly following the knitting of the main body 131 by a person skilled in the art simply by setting the parameters of the sock knitting machine, but it can also be performed by switching yarns. When switching yarns during knitting of the opening 132, a tightly knitted fabric can be knitted for the opening 132 using yarn with stretch properties different from those of the yarn of the main body 131, thereby increasing the fit of the opening 132 to the skin of the leg and further blocking the flow of air to and from the groove G1 of the main body 131. The knitted fabric thus knitted will have a shape as shown in Figure 5. In Figure 5, the symbol Dw indicates the wale direction, and the symbol Dc indicates the course direction. That is, the rib portion F2 of the opening portion 132 functions as a closing portion that closes the opening-side end of the groove G1 of the main body portion 131. This closing portion can also be called a ventilation shielding portion. The presence of this closing portion prevents cold air from flowing into the groove G1 of the main body portion 131 from the outside, and prevents warm air (air warmed by a person's legs) in the groove G1 of the main body portion 131 from escaping to the outside.

[0032] <Specific knitting method of knee socks according to an embodiment of the present invention> Examples of methods for forming knee socks 100 according to an embodiment of the present invention include knitting opening portion 132 from the end of opening portion 132 on the opening side to the end of main portion side of opening portion 132 to form opening portion 132, then shifting the knitting position and knitting main portion 131 from the end of main portion 131 on the opening side to the end of connecting portion side of main portion 131 to form main portion 131, knitting clamping portion 120 from the end of main portion side of pressing portion 120 to the end of foot covering portion side of pressing portion 120 to form clamping portion 120, and knitting from the end of foot covering portion side on the pressing portion side to the end of foot covering portion 110 on the toe side.

[0033] Methods for knitting the rib portions F1 and F2 include skipping stitches in pile sinker knitting to insert the elastic yarn into the knitted fabric, as well as rib knitting, links knitting, rib knitting, rib knitting, and rib knitting. The rib portions F1 and F2 knitted in this manner are composed of knit stitches that are continuous in the wale direction and purl stitches that are continuous in the wale direction. This type of knitting can be performed on a double-cylinder knitting machine, such as a rib knitting machine or links knitting machine. Another method for knitting the rib portions F1 and F2 is insertion knitting. In insertion knitting, a separate yarn is inserted between the knit stitches in the course direction. In a single-cylinder knitting machine, an elastic yarn is inserted before and after the knit stitches, while in a double-cylinder knitting machine, an elastic yarn is inserted between the knit stitches and purl stitches. In a single-cylinder knitting machine, a fabric containing an elastic yarn is called an elastic rib.

[0034] <Features of the knee socks according to the embodiment of the present invention> (1) In the knee-high socks 100 according to the embodiment of the present invention, the main body 131 and the opening 132 of the partial leg-covering portion 130 are knitted by inserting the elastic yarn into the knitted fabric with skipped stitches using pile sinker knitting, resulting in a ribbed knit fabric. As a result, the partial leg-covering portions 130 of these knee-high socks 100 have excellent radial stretchability.

[0035] (2) In the knee-high socks 100 according to the embodiment of the present invention, when knitting the opening 132 of the partial leg-covering portion 130, a ridge F2 of the opening 132 is formed in the course direction at a position corresponding to the groove G1 of the main body portion 131, and a groove G2 of the opening 132 is formed at a position corresponding to the ridge F1 of the main body portion 131. As a result, these knee-high socks 100 can prevent cold air from flowing in from the outside into the groove G1 of the main body portion 131, and can also prevent warm air from escaping from the groove G1 of the main body portion 131. As a result, these knee-high socks 100 have excellent heat insulation and heat retention properties.

[0036] <Modification> (A) In the previous embodiment, the present invention was applied to knee-high socks, but the present invention may also be applied to over-the-knee socks, leg warmers, stockings, tights, etc., and the present invention may also be applied to arm covers, arm warmers, etc.

[0037] (B) In the knee socks 100 according to the previous embodiment, as shown in FIG. 4, the opening portion 132 is knitted one stitch away from the stitches of the main body portion 131 in the course direction, thereby forming a ridge portion F2 of the opening portion 132 at a position corresponding to the groove G1 of the main body portion 131, and a groove G2 of the opening portion 132 at a position corresponding to the ridge portion F1 of the main body portion 131. However, as shown in FIG. 6, the opening portion 132 may be knitted two stitches away from the main body portion 131 in the course direction, thereby forming a ridge portion F2 of the opening portion 132 at a position corresponding to the groove G1 of the main body portion 131, and a groove G2 of the opening portion 132 at a position corresponding to the ridge portion F1 of the main body portion 131. Here, as long as the ridge portion F2 of the opening portion 132 is formed at a position corresponding to the groove G1 of the main body portion 131, and the groove G2 of the opening portion 132 is formed at a position corresponding to the ridge portion F1 of the main body portion 131, the number of shifted stitches is not particularly limited and can be set freely.

[0038] (C) In the knee socks 100 according to the previous embodiment, the stitches of the opening portion 132 are knitted offset relative to the stitches of the main body portion 131 in the course direction as shown in Fig. 4, thereby forming ridge portions F2 of the opening portion 132 at positions corresponding to the grooves G1 of the main body portion 131, and forming grooves G2 of the opening portion 132 at positions corresponding to the ridge portions F1 of the main body portion 131. However, as shown in Fig. 7, the knitting pitch of the opening portion 132 may be changed to be different from the knitting pitch of the main body portion 131, thereby forming ridge portions F2 of the opening portion 132 at positions corresponding to the grooves G1 of the main body portion 131, and forming grooves G2 of the opening portion 132 at positions corresponding to the ridge portions F1 of the main body portion 131. In such a case, however, the positions of some of the grooves G2 of the opening portion 132 coincide with the positions of some of the grooves G1 of the main body portion 131, as shown in Fig. 7. As a result, these knee-high socks can ensure breathability without significantly compromising their insulating and heat-retaining properties, which means that the wearer's legs are less likely to become sweaty.

[0039] (D) While the previous embodiment cited the knee-high socks 100 shown in Fig. 1 as an example, knee-high socks 100m shown in Fig. 8 may also be cited as an example of an embodiment of the present invention. These knee-high socks 100m are identical to the knee-high socks 100 of the previous embodiment, except that the opening portion 132 in the partial leg-covering portion 130 is replaced with a closing portion 133m and an opening portion 132m. For this reason, only the closing portion 133m and the opening portion 132m of the partial leg-covering portion 130m will be described in detail here.

[0040] When knitting the closing portion 133m, as when knitting the opening portion 132 of the knee socks 100 of the previous embodiment, a rib F3m of the closing portion 133m is formed in a position corresponding to the groove G1 of the main body portion 131 in the course direction, and a groove G3m of the closing portion 133m is formed in a position corresponding to the rib F1 of the main body portion 131. Furthermore, when knitting the opening portion 132m, a rib F2m of the opening portion 132m is formed in a position corresponding to the groove G3m of the closing portion 133m in the course direction, and a groove G2m of the opening portion 132m is formed in a position corresponding to the rib F3m of the closing portion 133m. That is, in these knee socks 100m, the groove G1 of the main body portion 131 is blocked by the rib F3m of the closing portion 133m, and the groove G3m of the closing portion 133m is blocked by the rib F2m of the opening portion 132m. Therefore, in these knee socks 100m, the airtightness of the internal space of the groove G1 of the main body portion 131 can be further improved.

[0041] In addition, in these knee socks 100m, (a) as shown in Figure 9, the closed portion 133m may be knitted two stitches apart from the stitches of the main body portion 131 in the course direction, and the opening portion 132m may be knitted two stitches apart from the stitches of the closed portion 133m, or (b) as shown in Figure 10, the closed portion 133m may be knitted one stitch apart from the stitches of the main body portion 131 in the course direction, and the knitting pitch of the opening portion 132m may be changed to be different from the knitting pitch of the closed portion 133m to knit the opening portion 132, or (c) as shown in Figure 11, the knitting pitch of the closed portion 133m may be changed to be different from the knitting pitch of the main body portion 131 to knit the closed portion 133m, and the knitting pitch of the opening portion 132m may be changed to be different from the knitting pitch of the closed portion 133m to knit the closed portion 133m. Here, as long as a ridge portion F3m of the blocking portion 133m is formed at a position corresponding to the groove G1 of the main body portion 131, a groove G3m of the blocking portion 133m is formed at a position corresponding to the ridge portion F1 of the main body portion 131, a ridge portion F2m of the opening portion 132m is formed at a position corresponding to the groove G3m of the blocking portion 133m, and a groove G2m of the opening portion 132m is formed at a position corresponding to the ridge portion F3m of the blocking portion 133m, the number of shifted stitches and the knitting pitch are not particularly limited and can be set freely.

[0042] (E) While the previous embodiment gave an example of the knee-high socks 100 shown in Fig. 1, knee-high socks 100p shown in Fig. 12 may also be given as an example of an embodiment of the present invention. These knee-high socks 100p are identical to the knee-high socks 100 according to the previous embodiment, except that main body portion 131 of partial leg-covering portion 130 has been replaced with main body portion 131p. For this reason, only main body portion 131p of partial leg-covering portion 130p will be described in detail here.

[0043] The main body portion 131p of these knee-high socks 100 has checkered closing portions P1p formed therein as shown in Fig. 12. As a result, the main body portion 131p has areas where grooves G1p and ridge portions F1p coexist in a checkered pattern. Each closing portion P1p closes the lower side of the groove G1p located above the closing portion P1p, and also closes the upper side of the groove G1p located below the closing portion P1p. These closing portions P1p may be knitted using the same knitting method as the ridge portions F1, F2 of the knee-high socks 100, or may be knitted using a different knitting method.

[0044] (F) In the knee socks 100 according to the previous embodiment, the clamping portion 120 has a single knitted structure, but the clamping portion 120 may also have a double or more multi-knitted structure. In this way, an air layer can be formed between the layers, and the clamping portion 120 can be given heat-retaining properties.

[0045] (G) Although the knee-high socks 100 according to the previous embodiment were primarily comprised of foot-covering portions 110, clamping portions 120, connecting portions 140, and partial leg-covering portions 130, knee-high socks 100 may include other components as long as the spirit of the invention is not impaired. Also, although partial leg-covering portions 130 were primarily comprised of main body portion 131 and opening portion 132, partial leg-covering portions 130 may include other components as long as the spirit of the invention is not impaired.

[0046] (H) In the knee socks 100 according to the previous embodiment, the foot covering portion 110 has a single knitted structure, but the foot covering portion 110 may have a double or more multiple knitted structure. In such a case, the foot covering part 110, the pressing part 120 and the connecting part 140 may be formed, for example, as follows: (i) knitting the connecting part 140 from the end of the connecting part 140 on the partial leg covering part side to the end of the connecting part 140 on the pressing part side, then switching the yarn and knitting from the end of the pressing part 120 on the connecting part side to the end of the pressing part 120 on the foot covering part side to knit the pressing part 120, then switching the yarn and knitting from the end of the foot covering part 110 on the pressing part side to the end of the foot covering part 110 on the toe side to knit the outer knitted fabric layer of the foot covering part 110, knitting from the end of the foot covering part 110 on the toe side to the end of the foot covering part 110 on the pressing part side to knit the inner knitted fabric layer of the foot covering part 110, and pushing the inner knitted fabric layer of the foot covering part 110 into the outer knitted fabric layer of the foot covering part 110 and knitting the inner knitted fabric layer at the end on the pressing part side. and (ii) knitting the inner knitted fabric layer of the foot covering part 110 by knitting from the end of the foot covering part 110 on the pressing part side to the end of the toe side of the foot covering part 110, knitting the outer knitted fabric layer of the foot covering part 110 by continuing knitting from the end of the foot covering part 110 on the toe side to the end of the foot covering part 110 on the pressing part side, knitting the outer knitted fabric layer of the foot covering part 110, then switching yarn and knitting from the end of the foot covering part 120 on the foot covering part side to the end of the connecting part side of the pressing part 120 to knit the pressing part 120, switching yarn again and knitting from the end of the connecting part 140 on the pressing part side to the end of the connecting part 140 on the partial leg covering part side to knit the connecting part 140, and pushing the inner knitted fabric layer of the foot covering part 110 into the outer knitted fabric layer of the foot covering part 110 and connecting the inner knitted fabric layer to the outer knitted fabric layer at the end on the pressing part side. By providing the foot covering part 110 with such a double structure, an air layer can be formed between the layers, and the foot covering part 110 can be endowed with a heat-retaining function.

[0047] (I) In the knee socks 100 according to the previous embodiment, the partial leg-covering portions 130 have a single-ply knitted structure, but the partial leg-covering portions 130 may be an inner knitted layer, with an outer knitted layer provided on the outside of the inner knitted layer, creating a double-ply knitted structure. In such a case, the air layer between the inner and outer knitted layers can provide heat retention. Note that the outer knitted layer may be further increased to create a triple or more-ply knitted structure.

[0048] (J) In the high socks 100 according to the previous embodiment, a Sanyinjiao stimulating portion 122 was formed at a position corresponding to the Sanyinjiao acupoint on the side of the clamping portion 120, but this Sanyinjiao stimulating portion 122 does not have to be formed.

[0049] The above-described modifications may be adopted individually or in appropriate combinations within a range that does not cause any contradictions. [Example]

[0050] (a) A double knitted fabric having an outer knitted fabric layer on the partial leg covering portion 130 having the structure shown in Fig. 1, (b) a double knitted fabric having an outer knitted fabric layer on the partial leg covering portion 130m having the structure shown in Fig. 8, and (c) a double knitted fabric having an outer knitted fabric layer on the partial leg covering portion 130 having the structure shown in Fig. 1 but without the opening portion 132 (i.e., only the main portion 131). Each double knitted fabric was attached to a hot plate, which was placed vertically, and the heat retention rates of these double knitted fabrics were measured using a KES-F7 Thermo Labo II testing machine manufactured by Kato Tech Co., Ltd. Note that in the partial leg covering portion 130 of (a), the rib portion F1 of the main portion 131 had 5 stitches and the groove G1 had 1 stitch, and the rib portion F2 of the opening portion 132 had 3 stitches and the groove G2 had 1 stitch. In the partial leg covering portion 130m of (b), the rib portion F1 of the main body portion 131 is 3 stitches and the groove G1 is 1 stitch, the rib portion F3m of the closed portion 133m is 5 stitches and the groove G3m is 1 stitch, and the rib portion F2m of the opening portion 132m is 3 stitches and the groove G2 is 1 stitch. In the partial leg covering portion 130 of (c), the rib portion F1 of the main body portion 131 is 3 stitches and the groove G1 is 1 stitch. In addition, the outer knitted fabric layers of the double knitted fabrics of (a) to (c) above were all the same. In addition, the environmental temperature during measurement was 20°C and the relative humidity was 65%. In addition, during measurement, the blank heat consumption was 9.5 W / m 2 The temperature was set to ·℃.

[0051] As a result of the above measurements, the heat retention rate of the double knitted fabric (a) was 72.8%, the heat retention rate of the double knitted fabric (b) was 74.5%, and the heat retention rate of the double knitted fabric (c) was 71.5%. In other words, it was proven that the double knitted fabrics of the invention (a) and (b) exhibit a higher heat retention rate than the double knitted fabric of the conventional product (c). [Explanation of symbols]

[0052] 100, 100m, 100p Knee socks (leg support) 130 Partial leg covering 131,131p Main body (groove forming part) 132,132m Opening (closed part) 133m Blocked area F1,F1p ridge (first ridge) F2, F2m, F3m border (second border) G1, G1p groove (1st groove) G2, G2m, G3m groove (second groove) Li inner stratum (inner layer) P1p occlusive part

Claims

1. A limb attachment that covers part or all of a limb, a groove forming portion having at least one first groove formed on the inner side thereof and extending toward the insertion opening side; a closing portion formed on the insertion opening side of the groove forming portion and closing the insertion opening side end of a part or all of the grooves; A limb orthosis comprising:

2. At least one second ridge extending toward the insertion opening is formed on the inner side of the closing portion, A part or all of the second ridge portion of the closing portion closes the insertion opening side end of a part or all of the first groove of the groove forming portion. The limb attachment according to claim 1.

3. the groove forming portion is arranged so as to form the first groove and a first ridge portion adjacent to the first groove, The closing portion is arranged so that a second ridge portion and a second groove adjacent to the second ridge portion are formed at a formation pitch different from a formation pitch of the first groove and the first ridge portion. The limb attachment according to claim 1.

4. the groove forming portion is arranged so as to form the first groove and a first ridge portion adjacent to the first groove, The closing portion is arranged such that a second groove is formed at a position shifted from a position where the first groove is formed, and the second ridge portion adjacent to the second groove is formed at a position shifted from a position where the first ridge portion is formed. The limb attachment according to claim 1.

5. The limb attachment according to claim 3 or 4, wherein the groove forming portion and the closing portion are knitted by pile sinker knitting.

6. The limb attachment according to claim 3 or 4, wherein the groove forming portion and the closing portion are formed by inserting the elastic yarn into the knitted fabric in a skipped stitch manner in pile sinker knitting.

7. The inner layer and an outer layer disposed outside the inner layer; and The inner layer is provided with the groove forming portion and the closing portion. The limb attachment according to claim 1.

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