JP2007239151A - Socks or cylindrical lower limb supporter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pair of socks or a cylindrical lower limb supporter suppressing slippage, maintaining comfortability when wearing, effective to raise performance of a wearer and reduce fatigue as for sports or living, and capable of stably giving appropriate pressure to a prescribed position even if wearing for a long time. <P>SOLUTION: This pair of socks 1 is set with pressure distributions which cover part or whole of a foot part, an ankle part, and a calf part, and whose pressure becomes sequentially small from the ankle part 4 to the calf part 5 when wearing. A plurality of toe bags 20 are set on the foot part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a sock or cylindrical lower limb supporter, and in particular, for sports and daily use, socks or cylindrical used for reducing fatigue such as performance improvement during sports, prevention or reduction of swelling of the lower limbs, etc. It relates to supporters for lower limbs.
In addition, the present invention can be used for medical purposes for the prevention or treatment of diseases such as venous return disorder of the lower limbs and lymphedema.
The form of the sock or cylindrical lower limb supporter that is the subject of the present invention is one that covers from the foot to the calf (so-called socks), one that covers from the foot to the knees (so-called high socks), and the foot to the thigh. And so on (so-called pantyhose) that covers from the foot to the waist (so-called pantyhose). In the above-described various forms, the heel part, the foot part, etc. may not be partially covered.
“Socks or cylindrical lower limb supporters” may be hereinafter referred to as “socks”.

  Conventionally, in the medical field, compression pressure gradually decreases from the ankle to the thigh for the prevention and treatment of venous return disorders such as varicose veins and venous thrombosis in the lower limbs and lymphedema. An elastic sock has been proposed (see, for example, Patent Document 1), and its effect is well known.

  For sports and daily use, elastic socks or cylindrical lower limb supporters are used to prevent fatigue of the lower limbs or to prevent or treat injuries. And in order to heighten the prevention or treatment effect, what was designed so that a higher pressure (tightening force) is applied to a predetermined part than the other part at the time of wearing has been proposed (for example, Patent Documents 2 and 3). reference).

Japanese Utility Model Publication No. 3-85025 Japanese Patent Publication No. 6-51921 Japanese Patent No. 2914614

The present invention is a conventional sock or tubular lower limb supporter having a predetermined pressure distribution, particularly for sports and daily use, and further improves the wearer's performance and fatigue. This is to investigate whether it is effective for mitigation.
Also, when using for a long time, such as for sports and daily use, or when used for a long time, these socks may deviate from the wearing site, or partial wrinkles or wrinkles may occur. There is a case. Therefore, there is a problem that the pressure set on these socks is not exhibited at a desired position, and the effect of compression is not effectively exhibited. Moreover, when such kinks and wrinkles occur, discomfort and skin irritation may increase.
The invention for the purpose of “suppressing deviation” has been filed as Japanese Patent Application No. 2005-253788 by the same applicant as this application. Also, the invention for the purpose of “suppressing discomfort” has been filed as Japanese Patent Application No. 2005-253789 by the same applicant.
Therefore, an object of the present invention is to provide a sock or a cylindrical lower limb supporter (socks or the like) that is effective for improving the performance of the wearer, reducing fatigue, or the like for sports or daily use.
In addition, the problem of the present invention is that, for sports use, daily use, etc., it is possible to suppress slippage and maintain comfort during wearing, and to stably apply an appropriate compression pressure to a predetermined site even when worn for a long time. It is to provide a sock or cylindrical lower limb supporter (sock etc.).

In order to solve the above-mentioned problems, the present invention covers at least a part or all of the foot part, the ankle part, and the calf part, and the compression pressure distribution in which the compression pressure is gradually reduced from the ankle part to the calf part when worn. A sock or tube-shaped lower limb supporter provided with a plurality of finger bags on the foot (Claim 1).
Further, the present invention provides at least a part or all of the foot part, the ankle part, and the calf part, and provides a compression pressure distribution in which the compression pressure is locally increased between the ankle part and the calf part when worn. A sock or cylindrical lower limb supporter, characterized in that a plurality of finger bags are provided on the foot (Claim 2).

Further, in the sock or tubular lower limb supporter according to claim 1 or 2, it is preferable that the width from the ankle portion to the calf portion is gradually increased (claim 3).
The sock or tubular lower limb supporter according to claim 3 is preferably formed so that the outer edge of the calf part side from the ankle part to the calf part has a curved shape (claim 4).
Further, the sock or tubular lower limb supporter according to claim 3 or 4 has a ratio of the width of the ankle part, the width of the intermediate part between the ankle part and the calf part, and the width of the calf part to 1 :( (1.05 to 1.60): (1.30 to 2.00) is preferable (Claim 5).
Further, the sock or tubular lower limb supporter according to any one of claims 1 to 5 preferably has an ankle portion and a calf portion with a 50% elongation stress in the range of 5 to 20 N (claim 6). ).

Further, the present invention provides at least a part of the foot part, the ankle part, and the calf part, and a sock or a cylinder provided with a pressure distribution that gradually reduces the pressure from the ankle part to the calf part when worn. A supporter for the lower limb, which is provided with a plurality of finger bags on the foot, formed so that the width from the ankle to the calf gradually increases, and the outer edge of the calf from the ankle to the calf is curved The ratio of the width of the ankle part, the width of the intermediate part of the ankle part and the calf part, and the width of the calf part is 1: (1.05-1.60) :( 1.30). It is formed so that it may become -2.00), and the stress at the time of 50% expansion | extension of an ankle part and a calf part is the range of 5-20N (Claim 7).
Furthermore, the present invention provides at least a part of the foot part, the ankle part, and the calf part, and provides a compression pressure distribution in which the compression pressure is locally increased between the ankle part and the calf part when worn. Support for socks or tubular lower limbs, provided with a plurality of finger bags on the foot, formed so that the width from the ankle to the calf gradually increases, and the calf from the ankle to the calf The outer edge is formed into a curved shape, and the ratio of the width of the ankle portion, the width of the intermediate portion between the ankle portion and the calf portion, and the width of the calf portion is 1: (1.05 to 1.60): It is formed so that it may become (1.30-2.00), and the stress at the time of 50% expansion | extension of an ankle part and a calf part is the range of 5-20N (Claim 8).

The sock or cylindrical lower limb supporter according to any one of claims 1 to 8 has a compression energy of 0.35 to 3.5 gf · cm / cm ^{2 in a} portion covering the ankle portion and / or the calf portion. (Claim 9).
The sock or tubular lower limb supporter according to any one of claims 1 to 9, wherein a portion covering the ankle portion and / or calf portion is formed of a knitted fabric, and 50% by weight of the yarn constituting the knitted fabric. The above yarn is preferably a yarn constituting a stitch having a thickness of 200 to 700 μm.
Furthermore, the sock or cylindrical lower limb supporter according to any one of claims 1 to 10, wherein cellulose fibers and polyester fibers are used in combination with a thread constituting a portion covering the ankle part and / or calf part. It is preferable to use 20 to 80% by weight of fiber and 20 to 70% by weight of polyester fiber.

Further, the sock or tubular lower limb supporter of the present invention according to any one of claims 1 to 11 may be provided with a portion having a friction coefficient of 0.3 to 0.7 at least on the thumb ball part. Preferred (claim 12).
Moreover, it is preferable that the sock or cylindrical lower limb supporter according to any one of claims 1 to 12 has at least a part that becomes a pile at the thumb ball part (claim 13).

  Furthermore, the plurality of finger bags provided on the sock or cylindrical lower limb supporter according to any one of claims 1 to 13 are provided with two finger bags, one for the thumb and the other for the thumb. It is preferable to use a finger bag for a finger (claim 14). Further, the plurality of finger bags can be five finger bags for each finger (claim 15).

ADVANTAGE OF THE INVENTION According to this invention, the supporter for socks or a cylindrical leg which is effective in a wearer's performance improvement, fatigue reduction, etc. can be provided.
In addition, according to the present invention, the sock or the cylindrical lower limb supporter is difficult to be displaced at the time of wearing, so that an appropriate compression effect can be continuously exhibited. Furthermore, since the feeling of use at the time of wearing is also good, it is possible to provide a sock or tubular lower limb supporter that does not cause discomfort even when used for a long time.

  An embodiment of the present invention will be described based on the drawings. FIG. 1 is a sock-type sock according to an example of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a sock-type sock. In this embodiment, from the toe portion 2, the heel portion 3, the ankle portion 4, and the calf portion 5 to the foot mouth portion 7 slightly below the knee portion 6. Shows a type of sock. The sock of FIG. 1 a has two finger bags 20, one for the thumb and the other for the fingers other than the thumb. The sock of FIG. 1 b has five finger bags 20 corresponding to each finger.

FIG. 2 is a view in which the sock shown in FIG. 1 a) is flattened with a crease centered on a line passing through a facing portion of the Achilles tendon. That is, it is a state when the sock made flat from the side of the body is seen.
Like the sock shown in FIG. 2, the sock of the present invention is preferably formed so that the width of its outer shape gradually increases from the ankle part to the calf part. In particular, the outer edge b on the calf portion side from the ankle portion to the calf portion is preferably formed to have a curved shape. By having such a shape that corresponds to the outer shape from the ankle to the calf when the sock is not worn (no load), the sock etc. conforms to the shape of the lower limb, so the aesthetics of the lower limb are excellent when worn It becomes difficult to happen.
Further, when forming the sock or the like so that the width of the outer shape gradually increases from the ankle part to the calf part, the width w1 of the ankle part, the width w2 of the intermediate part between the ankle part and the calf part, and the width w3 of the calf part Can be formed such that when the ankle width w1 is 1, the intermediate width w2 is 1.05 to 1.60 and the calf width w3 is 1.30 to 2.00. More preferably, the width w2 of the intermediate portion is 1.10 to 1.45, and the width w3 of the calf portion is more preferably 1.35 to 1.80. By setting the widths of w1, w2, and w3 to such ratios, the aesthetic appearance of the lower limbs is excellent when worn, and the displacement is less likely to occur, and the set compression pressure is likely to be effectively exhibited at a desired position.

By providing the finger pouch, the ground can be kicked using the power of the finger compared to the case without the finger pouch, so that the ground can be kicked out with a strong force. As a result, the stride lengthens and you can walk faster or run more powerfully, so the performance during sports is improved, and fatigue is not accumulated due to the efficient use of foot power.
The number of finger bags is preferably two finger bags, one for thumb thumbs and the other for finger fingers other than thumbs, or five finger bags for each finger. It is more preferable to provide the former two finger bags because of ease of handling.

The sock or cylindrical lower limb supporter of the present invention can be formed by, for example, a knitted structure, and an aspect in which an elastic yarn or the like is inserted from a lateral direction into a knitted structure formed by flat knitting, rubber knitting, pearl knitting, or the like. Available. As the yarn used for the knitting structure, for example, a nylon yarn, a polyester yarn, a cotton yarn, a rayon yarn or the like can be used as a yarn constituting the stitch of the knitting structure. As the yarn to be inserted into the stitch from the lateral direction, a so-called covered yarn, an elastic yarn in which polyurethane or natural rubber elastic yarn is used as a core yarn and other yarns are wound around in a coil shape can be used.
In particular, it is preferable to form an ankle part or a calf part (preferably an ankle part and a calf part) with a knitted structure composed of 18 to 60 rows of wales and a course of 18 to 50 rows per 2.54 cm. If so, a desired compression pressure can be stabilized and exhibited. More preferably, an ankle portion or a calf portion (preferably an ankle portion and a calf portion) is formed by a knitted structure including 18-45 rows of wales per 2.54 cm and a course of 18-45 rows. In the present invention, the direction parallel to the production direction of the knitted fabric is defined as the longitudinal direction, the direction orthogonal to the longitudinal direction is defined as the lateral direction, the longitudinal direction corresponds to the waling direction of the knitted fabric, and the lateral direction corresponds to the knitted fabric. The course direction is applicable.
The sock or cylindrical lower limb supporter of the present invention may be used in combination of a plurality of types of knitting structures, or may be used alone or in combination with a cloth other than a knitted structure such as a woven fabric or a non-woven fabric. Also good.

In the sock or tubular lower limb supporter of the present invention, the part covering the ankle part or the calf part (preferably the ankle part and the calf part) is composed of a knitted fabric, and 50% by weight or more of the yarn constituting the knitted fabric is contained. The yarn constituting the stitch having a thickness of 200 to 700 μm is preferable, and the yarn of 55% by weight or more is more preferably in the range of 200 to 400 μm.
When the thickness of the yarn constituting 50% by weight or more of the yarn constituting the knitted fabric is less than 200 μm, the polyurethane elastic yarn covered by the nylon yarn due to friction or the like is exposed on the skin contact surface or pilling ( May occur, and the touch when worn may be deteriorated. However, when the thickness is 200 μm or more, the durability is large and the comfort is not impaired. In addition, when the thickness of the yarn constituting 50% by weight or more of the yarn constituting the knitted fabric exceeds 700 μm, the fabric is stiff and the fabric structure is not stabilized, and the texture of the entire fabric is hardened. It is not preferable.

Moreover, it is preferable to use 20-80 weight% of cellulose fibers for the thread | yarn which comprises the part which covers an ankle part or a calf part (preferably an ankle part and a calf part). More preferably, cellulose fiber is used in an amount of 30 to 75% by weight in a thread constituting a part covering an ankle part or a calf part (preferably an ankle part and a calf part). By using cellulose fiber in such a range, socks or cylindrical lower limb supporters will absorb sweat well, it will not stuffy even if used for a long time, and the touch and wearing feeling are very good Furthermore, it also prevents infection of mycosis (athlete's foot). The cellulose fiber used in the present invention is not particularly limited, and may be any of natural cellulose fibers such as cotton; regenerated cellulose fibers such as viscose rayon fiber, polynosic fiber, copper ammonia rayon fiber, lyocell fiber, and modal fiber; Also good.
Further, it is preferable to use 20 to 70% by weight of polyester fiber in the yarn constituting the part covering the ankle part or the calf part (preferably the ankle part and the calf part). More preferably, the polyester fiber is used in an amount of 20 to 50% by weight in a thread constituting a part covering the ankle part or the calf part (preferably the ankle part and the calf part). When the proportion of the polyester fiber is less than 20% by weight, the durability of socks and the like is lowered, and when the proportion of the polyester fiber is more than 70% by weight, the fabric surface becomes hard and the wearing feeling may be deteriorated.
In the present invention, from the viewpoints of wearing feeling, durability, etc., it is preferable to use cellulose fibers and polyester fibers in combination with the yarn constituting the part covering the ankle part or the calf part (preferably the ankle part and the calf part), It is preferable to use 20 to 80% by weight of cellulose fiber and 20 to 70% by weight of polyester fiber, more preferably 30 to 75% by weight of cellulose fiber and 20 to 50% by weight of polyester fiber.

Further, the cellulose fiber preferably comprises a carboxyalkylated cellulose fiber in which at least a part of the carboxyalkyl group is substituted with an antibacterial metal carboxyalkyl group. Examples of the antibacterial metal include zinc, silver, and copper. Zinc that is not discolored by oxidation or the like even when used for a long period of time is preferable. The average substitution degree of the carboxyalkyl group by the antibacterial metal carboxyalkyl group (number of moles of carboxyalkyl group per anhydroglucose unit of cellulose constituting the cellulose fiber) is preferably 0.01 to 0.3. . By performing such a treatment, it is possible to impart continuous antibacterial properties and deodorizing properties while maintaining a good texture. The antibacterial metal carboxyalkylation of the cellulose fiber can utilize a conventional method, for example, by converting the alkali metal to the antibacterial metal by metal ion exchange reaction after alkali metal carboxyalkylation of the cellulose fiber. be able to.
Moreover, as a method for imparting antibacterial properties and deodorizing properties, as long as the touch of a cloth such as socks and the set pressure pressure are not impaired, the cellulose fibers other than the method for antibacterial metal carboxyalkylation are used. As a method, you may use the method of apply | coating or impregnating other antibacterial agents and deodorizers to cloths and threads, such as socks. Furthermore, a substance that adjusts the physiological function of the skin for the purpose of moisturizing the skin, preventing aging, and whitening, and a substance such as a fragrance can be applied or impregnated on a cloth or thread such as socks.
Moreover, the socks provided with the finger bag of the present invention are particularly useful for preventing infection of mycosis (athlete's foot). In particular, it is preferable to impart antibacterial properties as in the method of antibacterial metal carboxyalkylation of cellulose fibers. This is because the cellulose fiber is less prone to the propagation of ringworm bacteria than wool and the like, and the finger pouch can also suppress the moisture between the toes.

The sock or tubular lower limb supporter of the present invention obtained by the method as described above has a 50% elongation stress in the range of 5 to 20 N in the width direction of the ankle part and the calf part, and the ankle part and the calf part The stress at the time of 50% elongation in the width direction is formed so that the stress at the time of 50% elongation of the calf portion is 1 to a ratio of 0.8 to 1.8 when the stress at 50% elongation of the ankle portion is 1. Is preferred. The 50% elongation stress in the width direction of the ankle portion and the calf portion is in the range of 5.5 to 15N, and the ratio of the 50% elongation stress in the width direction of the ankle portion and the calf portion is 1: (0.8 to 1). 5) is more preferable. By making the ratio of the stress at 50% elongation and the stress at 50% elongation in this range, even when used in situations involving intense movements for sports, etc., it prevents displacement when wearing socks, etc. The effect of pressure can be exhibited stably.
Further, the sock or tubular lower limb supporter of the present invention obtained by the method as described above has a compression energy of 0.35 to 3 covering the ankle part or the calf part (preferably the ankle part and the calf part). 0.5 gf · cm / cm ² is preferable. By setting the compression energy in such a range, a soft skin contact surface is formed, and a suitable buffering action is exerted against contact from the outside, and comfort at the time of wearing is improved. Furthermore, it is preferable that the surface roughness of the part covering the ankle part or the calf part (preferably the ankle part and the calf part) is 25.0 or less. If the surface roughness exceeds 25.0, the texture may be deteriorated during wearing.

FIG. 3 is a side view of the sock according to FIG. With reference to FIG. 3, a preferred embodiment in the sole portion of the sock and in the vicinity thereof will be described.
In the sock or tubular lower limb supporter 1 of the present invention, it is preferable to provide at least the thumb ball portion 8 with a portion having a friction coefficient of 0.3 to 0.7. As a result, the friction between the sock or the like and the thumb ball portion of the human body increases, and the displacement hardly occurs, so that the ground can be kicked out with a strong force. The portion having the friction coefficient of 0.3 to 0.7 may be at least a finger ball portion such as a sock, but is preferably provided on the back surface portion 9 from the heel portion 3 to the height of the ankle portion 4. The sole part where the whole body weight is applied and the back part from the heel part where the body moves frequently to the height of the ankle part are particularly prone to displacement, and if this part is displaced, other parts are affected. Therefore, it is possible to effectively prevent the shift by providing a portion having a friction coefficient of 0.3 to 0.7 in this portion.

Further, the sock or tubular lower limb supporter of the present invention has a displacement suppressing portion 10 having a surface shape different from a portion other than the sole portion by a thread knitted or sewn into at least the thumb ball portion 8. It is preferable to form. By doing so, the friction between the socks and the thumb ball portion of the human body increases, and the shift is less likely to occur. The formation of the shift restraining part 10 may be performed simultaneously with the creation of the socks by knitting such as pile knitting, pearl knitting, rubber knitting, etc., or after forming the socks etc., the thread structure is sewn into the fabric structure. May be. In particular, it is preferable to form a portion that becomes a pile having a loop shape on the surface of the cloth. Due to the many loops of this pile, the friction of the surface is increased, the contact area between the skin and the sock is increased, and the adhesion between the skin and the sock is improved, so that the shift is less likely to occur. In addition, a large number of gaps formed by piles formed in the shift suppression portion improve air permeability, flexibility, shock buffering properties, and reduce discomfort due to stuffiness, compression, and the like. The shift suppressing portion 10 may be formed at least on the thumb ball portion 8, but is preferably provided on the back surface portion 9 from the heel portion 3 to the height of the ankle portion 4.
Moreover, it is preferable to form so that the part which touches a sole part may become thicker than the other part, and the thickness when 0.5 g / cm < ² > is added is the range of 1.3-6.0 mm It is preferable that it is 1.7 mm or more.

The sock or cylindrical lower limb supporter of the present invention is preferably provided with a non-slip on the surface opposite to the side of the finger bag and / or the foot contacting the skin (the outer surface of the sock or the like). By providing the anti-slip on the finger bag and / or the bottom of the foot, the displacement in the shoe is suppressed and the force of the toe is transmitted firmly, so that the kicking of the ground and the like becomes even stronger. It is particularly preferable to provide a slip stopper on both the finger bag and the sole. The material for forming the anti-slip is not particularly limited, but a synthetic polymer material is preferable, and it may be attached to the outer surface of the finger bag and / or the sole by means of coating, spraying, adhesion, heat welding or the like. The shape of the non-slip can be a dot, a line, a surface, or a combination of these shapes, and irregularities and undulations such as protrusions and depressions may be provided.
Synthetic polymer materials used for anti-slip include, for example, polyvinyl chloride, polyvinylidene chloride, polyacrylic acid, polyamide, polyurethane, polyester, polystyrene, olefin (eg, poly 1-butene, polyethylene, Polypropylene), an olefin copolymer, an organosilicon compound (eg, silicone resin), and the like. These can be used alone or in an appropriate mixture.

  The sock or tubular lower limb supporter of the present invention provides a compression pressure distribution in which the compression pressure is locally increased between the ankle portion and the calf portion when worn. This compression pressure distribution can be provided at a predetermined site effective for improving the wearer's performance, reducing fatigue, or preventing or treating a disease. The compression pressure distribution can be given a predetermined value by controlling the density of the yarn, the size of the stitches, and the degree of elongation of the elastic yarn. It is also possible to apply the compression pressure by stitching an elastic fabric at the position where the compression pressure is applied, or by applying or impregnating an elastic resin. The pressure pressure distribution in which the pressure pressure is locally increased is preferably a distribution in which the pressure pressure of the ankle portion is larger than the pressure pressure of other portions, and the pressure pressure of the ankle portion at that time is 18 to 67 hPa. Is preferable from the viewpoint of reducing fatigue.

  Further, the sock or tubular lower limb supporter of the present invention provides a compression pressure distribution in which the compression pressure sequentially decreases from the ankle portion to the calf portion when worn. By making such a pressure distribution, the effect of reducing fatigue such as prevention and reduction of swelling of the lower limbs is exhibited. The compression pressure is preferably 18 to 67 hPa and 9 to 54 hPa, respectively, such that the pressure at the ankle is higher than the pressure at the calf. In addition, the compression pressure of each said part is defined as a measurement pressure based on the following measurement parts and measurement methods.

  The ankle portion is the lower leg minimum surrounding portion, and the calf portion is the lower leg maximum surrounding portion. The pressure is measured by the following procedure using a pressure measuring device MST (manufactured by Salzmann AG). First, a probe of a measuring instrument is installed on the hard wooden or plastic foot. The foot shape has a cylindrical section with a circumference equivalent to the average Japanese body shape, and the foot shape specified there is used for measurement according to the sock size shown below. In addition, when the applicable perimeter of the sock extends over a plurality of sizes, an ankle having the ankle perimeter that is closest to the median value of the ankle applicable perimeter of the sock is used for the measurement.

Size 1: Socks with an applicable perimeter in the range of 15 to 19 cm at the ankle and 24 to 30 cm at the calf. An ankle with a circumference of 17 cm at the ankle, 27 cm at the calf, and 41.2 cm at the center of the thigh is used.
Size 2: Socks whose applicable perimeter is in the range of 17 to 21 cm at the ankle and 28 to 34 cm at the calf. An ankle with a circumference of 19 cm at the ankle, 31 cm at the calf, and 44.7 cm at the center of the thigh is used.
Size 3: Socks with an applicable perimeter in the range of 19-23 cm at the ankle and 32-38 cm at the calf. An ankle with a circumference of 21 cm at the ankle, 35 cm at the calf, and 46.5 cm at the center of the thigh is used.
Size 4: Socks having an applicable perimeter in the range of 21 to 25 cm at the ankle and 36 to 42 cm at the calf. An ankle with a circumference of 23 cm at the ankle, 39 cm at the calf, and 48.4 cm at the center of the thigh is used.
Size 5: Socks with an applicable perimeter in the range of ankle 23-27 cm and calf 40-46 cm. A foot with a circumference of 25 cm at the ankle, 43 cm at the calf, and 51.1 cm at the center of the thigh is used.
Next, an elastic sock is attached to the foot mold, the pressure at each part is measured, and this value is taken as the compression pressure.

Next, the results of evaluating the examples of the present invention together with comparative examples will be described below with reference to FIGS.

Example 1
Two socks were knitted socks-type socks, one for the thumb and the other for the fingers other than the thumb. Flat knitting was adopted from the ankle to the calf. The yarns constituting the flat knitted stitch include elastic yarns that are polyurethane covered with wooly nylon yarns, and blended yarns made of cotton and polyester (trade name Rich House, made by Sanzan Co., Ltd. 50% cotton, 50% polyester) Weight% blended yarn) was used, and an elastic yarn in which a polyurethane elastic yarn was double-covered with a nylon yarn was used as a yarn to be inserted into the stitch from the lateral direction. Moreover, the shift | offset | difference suppression part of a shape as shown in FIG. 3 was formed by the pile in the whole surface of the sole including a thumb ball part, and the back part from the buttocks to the height of an ankle part.
This sock is immersed in an aqueous solution in which both sodium monochloroacetate and sodium hydroxide are dissolved, and then the sock is dehydrated at an appropriate dehydration rate, and then dried until it becomes completely dry, and the cellulose in the cotton spun yarn The fiber was sodium carboxymethylated. Thereafter, the socks were immersed in an aqueous solution in which zinc sulfate heptahydrate, acetic acid and sodium acetate were dissolved to neutralize, and at the same time, sodium carboxymethylated cellulose fibers were converted to zinc carboxymethylated cellulose fibers. Thereafter, the remaining zinc sulfate, acetic acid, and sodium acetate were removed by washing with water, followed by drying to obtain socks with zinc carboxymethylation of the cotton spun yarn (average substitution degree 0.03).
The thickness, ratio, etc. of the yarn used are shown in FIGS. The sock obtained in this way corresponds to the size 3 described above, and the pressure distribution of the sock is a pressure distribution in which the pressure decreases in order from the ankle part to the calf part. 20.6 hPa and 17.0 hPa at the calf. The created sock is formed so that the width of the outer shape from the ankle portion to the calf portion gradually increases, and the outer edge on the calf portion side from the ankle portion to the calf portion has a curved shape.

(Example 2)
A sock-type sock was produced in the same manner as in Example 1 except that the type and ratio of the yarn used and the number of finger bags were five. The thickness, ratio, etc. of the yarn used are shown in FIGS. The sock obtained in this way corresponds to the size 3 described above, and the pressure distribution of the sock is a pressure distribution in which the pressure decreases in order from the ankle part to the calf part. 25.3 hPa and 20.9 hPa at the calf. The created sock is formed so that the width of the outer shape from the ankle portion to the calf portion gradually increases, and the outer edge on the calf portion side from the ankle portion to the calf portion has a curved shape.

(Example 3)
Socks-type socks were knitted by using elastic yarn and cotton spun yarn with rubber elastic yarn single-covered with wooly nylon yarn as the yarn constituting the rubber knitting stitch. Two finger bags were provided, one for the thumb and the other for the fingers other than the thumb. Moreover, the shift | offset | difference suppression part of a shape as shown in FIG. 3 was formed by the pile in the whole surface of the sole including a thumb ball part, and the back part from the buttocks to the height of an ankle part.
The thickness, ratio, etc. of the yarn used are shown in FIGS. The sock obtained in this way corresponds to the size 3 described above, and the pressure distribution of the sock is a pressure distribution in which the pressure decreases in order from the ankle part to the calf part. It was 20.0 hPa in the calf part and 18.2 hPa. The created sock is formed so that the width of the outer shape from the ankle portion to the calf portion gradually increases, and the outer edge on the calf portion side from the ankle portion to the calf portion has a curved shape.

The following evaluation was performed about the Example of this invention. In addition, as a comparison with the examples of the present invention, the following socks type socks were used.
(Comparative Example 1)
A sock having a compression pressure distribution in which the compression pressure gradually decreases from the ankle portion to the calf portion without knitting a finger pouch. Flat knitting was adopted from the ankle to the calf. As the yarn constituting the flat knitted stitch, a wooly nylon yarn was used, and an elastic yarn in which a polyurethane elastic yarn was covered with a wooly nylon yarn as a single cover was used as a yarn to be inserted into the stitch from the lateral direction.
The thickness, ratio, etc. of the yarn used are shown in FIGS. The socks obtained in this way correspond to the above-mentioned size 3, and the pressure distribution of the socks was 27.0 hPa at the ankle part and 20.3 hPa at the calf part. Moreover, the created socks were formed so that the outer width from the ankle portion to the calf portion was the same, and the outer edge on the calf portion side from the ankle portion to the calf portion was a straight shape.

(Comparative Example 2)
Two socks were knitted socks-type socks, one for the thumb and the other for the fingers other than the thumb. This sock is not provided with a compression pressure distribution in which the compression pressure gradually decreases from the ankle portion to the calf portion, or a compression pressure distribution in which the compression pressure locally increases between the ankle portion and the calf portion. This sock adopted flat knitting from the ankle to the calf. For the yarns that form flat knitted stitches, elastic yarns and cotton spun yarns that are polyurethane covered with wooly nylon yarns are used as single yarns. Polyurethane elastic yarns are doubled with nylon yarns as yarns to be inserted from the side into the stitches. Covered elastic yarn was used.
The thickness, ratio, etc. of the yarn used are shown in FIGS. The socks obtained in this way correspond to the above-mentioned size 3, and the pressure distribution of the socks was 5.9 hPa at the ankle part and 6.8 hPa at the calf part. Moreover, the created socks were formed so that the outer width from the ankle portion to the calf portion was the same, and the outer edge on the calf portion side from the ankle portion to the calf portion was a straight shape.

(Stress at 50% elongation of the ankle and calf)
As shown in FIG. 6, the ankle portion 4 or the calf portion 5 of the sock 1 is placed on a chuck 31 of a tensile tester 30 (manufactured by Shimadzu Corp., trade name “Autograph AG-I” load cell 100 kg), and sock fabric. Are attached between the chucks so that there is no deflection (shown in the figure with the calf attached). Attachment to the chuck is such that the distance 32 between the chucks is 60 mm when measuring the ankle part and 80 mm when measuring the calf part, and the width direction w1 or w3 of the ankle part 4 or the calf part 5 is parallel to the tension direction. Attach as shown. The check width 33 is 35 mm. Tensile at a pulling speed of 100 mm / min, the stress (N) at 50% elongation is measured, and the average value of the measurement results of the two samples is taken as the stress at 50% elongation of the ankle or calf.

(Thread thickness)
Loosen the thread from the cloth that covers the ankle and calf of the sock, and collect five at random. If multiple types of yarn are used, five are collected for each type of yarn. One end of the yarn is fixed, a weight of 50 g is hung on the other end, and the strain is eliminated, and the thickness of the yarn is measured using a 50 × electron microscope (VH-8000 manufactured by Keyence Corporation). The thickness of the yarn is expressed as an average value of the five yarns by measuring the distance between two points in the field of electron microscope, assuming that the yarn width is the yarn width in the direction perpendicular to the longitudinal direction of the yarn. .

(Cloth compression energy)
An automated compression tester (KESFB3-AUTO-A manufactured by Kato Tech Co., Ltd.) is used, and the compression energy is measured by the following method. A 5 × 5 cm test piece is taken from the sock ankle and calf fabrics. The test piece is placed in the center of the testing machine, and a compressive force is applied to the cloth at a speed of 0.2 mm / sec on a 2 cm ² circular plane, and the load is measured. The compression energy (gf · cm / cm ² ) is displayed as an average value of the measurement results of two samples. The larger the value of the compression energy, the easier it is to compress.

(Cloth surface roughness)
Using an automated surface testing machine (KESFB4-AUTO-A, manufactured by Kato Tech Co., Ltd.), the surface roughness is measured by the following method. A test piece having a size of 20 × 5 cm is collected from the fabric of the ankle and calf of the sock. A test piece to which 400 g of tension is applied is placed on the test machine, a 50 g metal friction element is placed on the test piece, the test piece is moved 20 mm back and forth, and the variation in the frictional force of the test piece is measured. The surface roughness is displayed as an average value of the measurement results of two samples calculated from the frictional force. The surface roughness indicates the variation of the unevenness on the surface of the fabric, and the larger the value, the larger the unevenness.

(Coefficient of friction)
Using an automated surface testing machine (KESFB4-AUTO-A, manufactured by Kato Tech Co., Ltd.), the friction coefficient is measured by the following method. A test piece having a size of 20 × 5 cm including the thumb ball part is collected from the sock of the example. A test piece to which 400 g of tension is applied is placed on the testing machine, a 50 g metal friction element is placed on the thumb ball part of the test piece, the test piece is moved 20 mm back and forth, and the fluctuation of the friction force of the thumb ball part is measured. . The friction coefficient is displayed as an average value of the measurement results of two samples calculated from the friction force. A larger coefficient of friction means less smooth.

(Difficult to slip when wearing)
Three subjects are allowed to walk on a treadmill for 20 minutes, the degree of difficulty of sock slipping at that time is evaluated in the following five stages, and the total score is used as a score. The higher the score, the harder it is to slip.
5-level evaluation: 5 points that are difficult to shift, 4 points that are difficult to shift, 3 points, 2 points that are easily shifted, and 1 point that is easily shifted.

(Comfort when wearing)
After the evaluation of the “difficulty during wearing”, the degree of comfort after wearing the socks is evaluated in the following five levels, and the total score is used as a score. A higher score indicates higher comfort.
5-point evaluation: 5 points that are comfortable, 4 points that are slightly comfortable, 3 points that are usually uncomfortable, 2 points that are slightly uncomfortable, and 1 point that is uncomfortable.

(Evaluation of ease of kicking force while walking)
Five subjects are allowed to walk on a treadmill, and the degree of ease of kicking during walking is evaluated in the following five stages, and the total score is used as a score. The higher the score, the easier it is to kick out. The measurement is performed at two walking speeds of 5 km / h and the treadmill inclination angle of 0% and 15%.
Five-step evaluation: 5 points that are easy to kick out, 4 points that are easy to kick, 3 points, 2 points that are difficult to kick, and 1 point that is difficult to kick.

  These results are shown in FIGS. It can be seen that the sock according to the example is more easily kicked out during walking than the comparative example, is not easily displaced even when worn for a long time, and has high comfort.

The front perspective view of the sock which concerns on an example of embodiment of this invention. Side view of the sock according to FIG. The side view of the state which reversed the sock concerning a) of FIG. The figure which shows the evaluation result of the Example and comparative example of this invention. The figure which shows the evaluation result of the Example and comparative example of this invention. The figure which shows the test method of the stress at the time of 50% expansion | extension.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Socks or cylindrical lower limb supporter 2 Toe part 3 Hip part 4 Ankle part 5 Calf part 6 Knee part 7 Foot part 8 Toe ball part 9 Back part 10 Deviation suppression part 20 Finger bag 30 Tensile testing machine 31 Chuck 32 Chuck distance 33 Check width b Outer edge of calf side w1 Ankle width w2 Width of ankle and calf middle w3 Calf width

Claims (15)

  A sock or tubular lower limb supporter that covers at least part or all of the foot, the ankle, and the calf, and has a pressure distribution that gradually reduces the pressure from the ankle to the calf when worn. A sock or tubular lower limb supporter, wherein a plurality of finger bags are provided on the foot.   A sock or cylindrical shape that covers at least a part or all of the foot, the ankle, and the calf, and has a compression pressure distribution that locally increases the pressure between the ankle and the calf when worn. A sock or tubular lower limb supporter, which is a lower limb supporter, and is provided with a plurality of finger bags on a foot.   The sock or tubular lower limb supporter according to claim 1 or 2, wherein a width from the ankle portion to the calf portion is gradually increased.   The sock or cylindrical lower limb supporter according to claim 3, wherein the outer edge of the calf part from the ankle part to the calf part is formed in a curved shape.   The ratio of the width of the ankle part, the width of the intermediate part between the ankle part and the calf part, and the width of the calf part is 1: (1.05-1.60) :( 1.30-2.00) The sock or cylindrical lower limb supporter according to claim 3 or 4 formed in the above.   The sock or cylindrical lower limb supporter according to any one of claims 1 to 5, wherein the ankle part and the calf part have a 50% elongation stress of 5 to 20N.   A sock or tubular lower limb supporter that covers at least part or all of the foot, the ankle, and the calf, and has a pressure distribution that gradually reduces the pressure from the ankle to the calf when worn. The foot part is provided with a plurality of finger bags, the width from the ankle part to the calf part is gradually increased, and the outer edge on the calf part side from the ankle part to the calf part is formed in a curved shape. The ratio of the width of the ankle part, the width of the intermediate part between the ankle part and the calf part, and the width of the calf part is 1: (1.05-1.60) :( 1.30-2.00) A sock or tubular lower limb supporter, wherein the ankle part and calf part have a 50% elongation stress of 5 to 20 N.   A sock or cylindrical shape that covers at least a part or all of the foot, the ankle, and the calf, and has a compression pressure distribution that locally increases the pressure between the ankle and the calf when worn. A supporter for the lower limbs, which is provided with a plurality of finger bags on the foot, formed so that the width from the ankle to the calf gradually increases, and the outer edge on the calf from the ankle to the calf is curved The ratio of the width of the ankle part, the width of the middle part of the ankle part and the calf part, and the width of the calf part is 1: (1.05-1.60) :( 1.30-2) .00), and an ankle portion and a calf portion having a 50% elongation stress in a range of 5 to 20 N. A sock or tubular lower limb supporter. The sock or tubular lower limb according to any one of claims 1 to 8, wherein the compression energy of a portion covering the ankle part and / or calf part is 0.35 to 3.5 gf · cm / cm ^2. Supporter.   A part covering the ankle part and / or calf part is formed of a knitted fabric, and 50% by weight or more of the yarn constituting the knitted fabric is a yarn constituting a stitch having a thickness of 200 to 700 μm. Item 10. The sock or tubular lower limb supporter according to any one of Items 1 to 9.   A cellulose fiber and a polyester fiber are used in combination in a thread constituting a portion covering the ankle part and / or calf part, and the cellulose fiber is used in an amount of 20 to 80% by weight and the polyester fiber is used in an amount of 20 to 70% by weight. Item 11. The sock or tubular lower limb supporter according to any one of Items 1 to 10.   The sock or tubular lower limb supporter according to any one of claims 1 to 11, wherein a portion having a friction coefficient of 0.3 to 0.7 is provided at least on the thumb ball part.   The sock or cylindrical lower limb supporter according to any one of claims 1 to 12, wherein a pile portion is formed at least on the thumb ball part.   The socks or the tubular lower limb according to any one of claims 1 to 13, wherein two finger bags are provided, one is a finger bag for a thumb, and the other is a finger bag for a finger other than the thumb. Supporter.   The socks or cylindrical lower limb supporter according to any one of claims 1 to 13, wherein five finger bags are provided for each finger.

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