JP2010077574A - Lower limb garment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lower limb garment effective to increase performance of a wearer, and easy to attach. <P>SOLUTION: This lower limb garment 1 compressing and covering at least the ankle and the calf is so designed that a compression pressure of an ankle pressing part 3 is made higher than that of a calf pressing part 4, and an elongation rate in 10N load in the calf pressing part 4 is made smaller in the vertical direction than in the circumferential direction. Furthermore, a garment body 2 comprising parts excluding the ankle pressing part 3 and the calf pressing part 4 is made of a fabric whose elongation rate in 10N load is larger than that of the ankle pressing part 3 and the calf pressing part 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to clothing for lower limbs that covers ankles and calves such as socks, high socks, over knees, stockings, tights, and cylinders. More specifically, the present invention relates to clothing for lower limbs worn mainly when playing sports.

  2. Description of the Related Art Conventionally, for the purpose of accelerating recovery of foot fatigue, clothing for lower limbs that compresses the lower limbs has been developed (see, for example, Patent Document 1). In the compression high socks described in Patent Document 1, the ankle portion and the arch portion are made strong pressure, and by gradually reducing the pressure from the lower part to the upper part, the flow of venous blood flow in the sole is promoted, We are trying to eliminate edema.

  On the other hand, when playing sports, wear clothing for the lower limbs such as tights may be worn for the purpose of protecting the body or keeping warm. In recent years, appropriate compression is applied to the parts involved in exercise such as muscles and joints. Sports tights have been proposed in which, by setting the state, vibration is suppressed and traveling stability is improved (see, for example, Patent Document 2). In the tights described in Patent Document 2, hamstrings (biceps femoris) are formed by forming the outer side of the lower limbs, the rear waist part, the outer knee support part, and the like with a strong stretchable material that is stronger than the other parts. Etc.), the momentary pulling action to the front upper part of the knee interlocked with the action of promoting the thigh advancement of the thigh is promoted to prevent the kneecap from shaking.

  Furthermore, the present applicant has also proposed an apparel for lower limbs that is effective for maintaining the stability of the ankle joint and improving the wearer's performance and reducing fatigue for sports or daily use (for example, Patent Document 3, 4). For example, in the sock described in Patent Document 3, a reinforcing portion having elasticity is integrally provided on a portion covering from the sole portion corresponding to the ribs and / or the cubic bone to the side surface of the ankle portion. A compression pressure distribution is formed in which the compression pressure gradually decreases toward the calf.

  In addition, the lower limb apparel described in Patent Document 4 is a thick and waisty, low-stretch and strong-compressible fabric in a lower limb apparel such as tights worn during sports, The upper part, the arch, and the clamping part which covers the ankle joint and ankle are provided. In this lower limb apparel, by tilting the upper end of the clamping part toward the upper part of the lower limb, the compression action is gradually reduced upward, realizing smooth compression along the flow of the veins. , Reducing wearer discomfort.

JP 2005-325486 A JP 2006-207056 A JP 2007-332469 A JP 2008-50705 A

  However, the conventional techniques described above have the following problems. First, the pressure socks described in Patent Document 1 has a problem that it is difficult to mount. Since this sock has a particularly strong pressure at the ankle portion, it is difficult to pass a heel having a larger circumference than the ankle through this portion, and a strong force is required at the time of wearing. On the other hand, the tights described in Patent Document 2 have a problem that the ankle and calf support functions are weak, and the ankle joint and lower leg stability and fatigue reduction effects are not sufficient.

  In contrast, the lower limb apparel described in Patent Documents 3 and 4 is effective in improving the wearer's performance and reducing fatigue, and also prevents ankle varus or valgus sprain. It can also support the part effectively. Further, by providing the reinforcing portion and the tightening pressure portion provided in the ankle portion with a predetermined structure, the feeling of wearing and the ease of wearing are improved as compared with the conventional one. However, even with such clothing, it may be felt that it is somewhat difficult to put on when the pressure at the ankle is set higher.

  Therefore, the main object of the present invention is to provide a clothing for lower limbs that is effective in improving the performance of the wearer and is easy to wear.

The lower limb apparel according to the present invention is a lower limb apparel that covers at least the ankle and calf, and the portion covering the ankle has a higher compression pressure than the portion covering the calf, and The part covering the calf is such that the elongation rate at 10 N load is smaller in the vertical direction than in the circumferential direction.
In the present invention, since the portion covering the ankle and the portion covering the calf are compressible, the ankle joint and the split between the two gastrocnemius muscles are tightened. This stabilizes the wearer's ankle joint and suppresses unnecessary muscle shake, which is effective in reducing fatigue and improving performance. In addition, the portion covering the calf has a low vertical extension rate and is difficult to extend in the vertical direction.
In this lower limb apparel, the elongation rate at the time of 10N load of the portion covering the calf can be, for example, 15 to 35% in the circumferential direction and 5 to 25% in the vertical direction.
Moreover, as for the part which covers a calf, the extension force at the time of 50% expansion | extension may be larger in the up-down direction than the circumferential direction. Specifically, the extension force at the time of 50% extension in the circumferential direction can be set to 20 to 40 N / 65 mm, for example, and the extension force at the time of 50% extension in the vertical direction can be set to 50 to 90 N / 65 mm, for example. As described above, when the extension force in the vertical direction of the portion covering the calf is made larger than the extension force in the circumferential direction, the portion covering the calf becomes difficult to extend in the vertical direction, so that the wearability is improved.
On the other hand, the fabric constituting the portion covering other than the ankle and calf may have a larger elongation rate at 10N load than the fabric constituting the portion covering the ankle and the calf, and when stretched by 50%. It is also possible to reduce the extension force.
In this lower limb apparel, the compression pressure of the portion covering the ankle can be set to 18 to 67 hPa, for example, and the compression pressure of the portion covering the calf can be set to 9 to 54 hPa, for example.
Moreover, you may provide the compression pressure distribution which compression pressure becomes low gradually toward an calf from an ankle at the time of mounting | wearing.
Furthermore, the part covering the calf can be formed by laminating two or more materials which are the same or different from each other.

  According to the present invention, since the portion covering the ankle and the portion covering the calf have compression properties, the ankle and muscle are stable, the wearer's fatigue can be reduced, and the performance can be improved. Since it has a predetermined elongation characteristic in the vertical direction of the portion covering the calf, it can be easily attached.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments described below.

  First, the clothing for lower limbs according to the first embodiment of the present invention will be described. FIG. 1 is a perspective view showing a wearing state of the lower limb clothing according to the present embodiment. 2 is a front view of the lower limb apparel 1 shown in FIG. 1, FIG. 3 is a rear view, and FIG. 4 is a side view. As shown in FIGS. 1 to 4, the lower limb garment 1 of the present embodiment is an open toe and open heel type high socks type garment in which toes and heels are exposed at the time of wearing.

  The lower limb apparel 1 covers the lower knee portion except for the toes and the heel by the apparel body 2, and at least a portion that covers the ankle and a portion that covers the calf, respectively. A pressure part 4) is provided. That is, the lower limb apparel 1 of the present embodiment has a configuration in which the ankle and calf are pressed and covered by the ankle tightening pressure portion 3 and the calf tightening pressure portion 4.

  In addition, the garment body 2 in the lower limb garment 1 is a thin, lightweight, low water-holding, highly breathable fabric or a breathable so as not to feel uncomfortable and fit when worn. It can be formed of a fabric such as a knitted fabric. Examples of such fabrics include tengu fabrics, milling fabrics, smooth fabrics, raschel fabrics, circular knitted fabrics made using materials such as cellulose fibers such as cotton and rayon, polyamide fibers, polyester fibers or polyurethane fibers. And tricot fabric.

  Further, the ankle tightening pressure portion 3 can be formed so as to cover the arch, the upper, the ankle joint, and the ankle, for example. In this case, it is desirable that the upper end portion of the ankle tightening pressure portion 3 is inclined. Specifically, as shown in FIG. 1, in addition to the configuration in which the front middle part of the lower leg is high and lower toward the rear side, the structure in which the front middle part of the lower leg is lower and higher toward the rear side, and from one side of the lower leg A configuration in which the height increases toward the side surface can be applied. In this way, by tilting the upper end of the ankle tightening pressure portion 3, the pressure action on the lower leg can be continuously reduced upward, so that smooth compression along the flow of the vein is possible. , The wearer's discomfort can be reduced. Furthermore, since it becomes easy to pass a heel, mounting | wearing property also improves.

  The compression pressure at the time of wearing of the ankle tightening pressure part 3 only needs to be higher than the calf tightening pressure part 4 described later, and can be set to 18 to 67 hPa, for example. Thereby, since an ankle is fixed reliably, the varus or valgus sprain of an ankle joint can be prevented. Note that a part of the ankle tightening pressure portion 3 may be provided with a portion having a particularly strong compression action. For example, the effect of fixing the ankle joint can be further enhanced by increasing the compression pressure of the portion covering the ankle from the inside of the lower leg through the sole to the outside ankle more than the other portions.

  On the other hand, the calf tightening pressure part 4 presses and covers the calf on the rear side of the lower leg, and the pressure at the time of wearing is lower than that of the ankle tightening pressure part 3 described above, and can be, for example, 9 to 54 hPa. The calf clamping pressure portion 4 is preferably formed so as to compress and cover almost the entire surface corresponding to the gastrocnemius muscle and the Achilles tendon, and the portion covering the Achilles tendon is more worn than the portion covering the gastrocnemius muscle. More preferably, the compression pressure is high. As a result, the junction of the two gastrocnemius muscles is tightened, so that unnecessary blurring of the muscles is suppressed, fatigue can be reduced, and the wearer's performance can be improved.

  Moreover, the calf clamping pressure part 4 in the garment 1 for lower limbs of the present embodiment has an elongation rate at a load of 10 N that is smaller in the vertical direction than in the circumferential direction. That is, in this lower garment 1, the calf clamping pressure portion 4 is difficult to extend in the vertical direction. In addition, the elongation rate here can be calculated | required by grasping the calf clamping pressure part 4 of the clothing 1 for lower limbs on predetermined conditions, and performing a tension test. FIG. 5A is a perspective view schematically showing a method for measuring the elongation characteristics in the circumferential direction, and FIG. 5B is a side view showing the measurement location. FIG. 6 (a) is a perspective view schematically showing a method for measuring the vertical extension characteristic, and FIG. 6 (b) is a side view showing the measurement location.

  When measuring the elongation rate, first, the surfaces (side surfaces) viewed from the side of the body are in close contact with each other, with the garment for lower limbs 1 having a sagittal plane passing through the center in the vertical direction of the calf and the other shin. Overlapping so that. Next, the calf clamping pressure portion 4 of the garment for lower limbs 1 that is flattened in this state is attached to the chuck 11 of the tensile testing machine 10 so as not to bend. At this time, in the measurement in the circumferential direction, as shown in FIGS. 5A and 5B, the maximum circumference of the lower leg clothing 1 so that the circumferential direction and the tensile direction of the lower leg clothing 1 are parallel to each other. The part 5 is attached to the chuck 11 of the tensile tester 10. On the other hand, in the measurement in the vertical direction, as shown in FIGS. 6 (a) and (b), the center of the lower leg part of the garment 1 for the lower limb is arranged so that the vertical direction and the tensile direction of the garment 1 for the lower leg are parallel. Attach to the chuck 11 of the tensile tester 10.

  Then, a tensile test is performed at a tensile speed of 100 mm / min, and the following equation 1 is obtained using the measured elongation E (mm) at 10 N load and the distance L (mm) between chucks before measurement. Can do. In this measurement, the distance L between chucks is 100 mm, and the chuck width W is 65 mm.

  Like the lower limb apparel 1 of the present embodiment, it may be difficult to put on an item that exerts strong pressure on the ankle and calf due to its tightening force. For this reason, the conventional lower limb apparel had to be pulled up with a certain amount of force when worn. On the other hand, in the lower limb apparel 1 of the present embodiment, the calf clamping pressure portion 4 is not easily stretched in the vertical direction, so even if the compression pressure of the ankle clamping pressure portion 3 and the calf clamping pressure portion 4 is increased. It is easy to pull up and is easier to wear than conventional products. In addition, in the calf tightening pressure portion 4, when the vertical elongation is larger than the circumferential diameter direction, it is difficult to pull up, so that the ease of mounting is reduced.

  The elongation rate at the time of 10N load in the calf clamping pressure portion 4 can be, for example, 15 to 35% in the circumferential direction and 5 to 25% in the vertical direction. By setting the expansion rate of the calf clamping pressure portion 4 in such a range, better wearability can be obtained.

  Moreover, it is preferable that the calf clamping pressure part 4 is larger in the vertical direction than in the circumferential direction in terms of the stretching force when stretched by 50%. Specifically, the extension force at the time of 50% extension in the calf clamping pressure portion 4 can be 20 to 40 N / 65 mm in the circumferential direction and 50 to 90 N / 65 mm in the vertical direction. Thereby, mounting property can be improved, maintaining a high compression pressure.

  In addition, the elongation force here can be measured by carrying out a tensile test by the method shown in FIGS. Specifically, in the same manner as the elongation rate measurement, with the side surfaces of the lower limb garments 1 being overlapped with each other, they are attached to the chuck 11 of the tensile tester 10 so that the measurement portion does not bend, and the circumferential direction or top and bottom Perform a tensile test in the direction. And the stress (N / 65mm) when the clothing 1 for lower limbs is extended 50% is measured, and the value is defined as the extension force (N / 65mm) in each direction of the calf clamping pressure portion 4.

  The calf clamping pressure portion 4 in the lower limb apparel 1 of the present embodiment is desirably formed of a cloth having a predetermined elongation characteristic in order to achieve the above-described elongation characteristics (elongation rate, elongation force). Specifically, it is desirable to use a fabric having an elongation rate at 10N load of 25 to 100% in the circumferential direction and 25 to 100% in the vertical direction, and the elongation rate at 10N load is in the circumferential direction. It is more desirable to use 30 to 50% of the dough and 30 to 50% in the vertical direction. On the other hand, the stretch force when the fabric constituting the calf clamping pressure portion 4 is stretched by 50% is desirably 6 to 20 N / 25 mm in the circumferential direction, 6 to 20 N / 25 mm in the vertical direction, and 8 in the circumferential direction. It is more desirable to be 18N / 25mm and 8-18N / 25mm in the vertical direction. By forming the calf clamping pressure portion 4 with a fabric having such elongation characteristics (elongation rate, elongation force), it is possible to improve the wearability while maintaining a high compression pressure.

  In addition, the expansion | extension characteristic (elongation rate, elongation force) of the fabric | combination which comprises the calf clamping pressure part 4 can be measured by a tension test. FIG. 7 is a perspective view schematically showing a method for measuring the elongation characteristics of the fabric. Specifically, first, a rectangular sample piece having a size of 200 mm in the circumferential direction and 25 mm in the vertical direction is collected from the fabric constituting the calf clamping pressure portion 4 for measuring the elongation characteristics in the circumferential direction. At the same time, a rectangular sample piece having a size of 25 mm in the circumferential direction and 200 mm in the vertical direction is taken for measuring the extension property in the vertical direction.

  Next, as shown in FIG. 7, in the measurement in the circumferential direction, the circumferential direction of the fabric is in parallel with the tensile direction, and in the measurement in the vertical direction, the vertical direction of the fabric is in parallel with the tensile direction. Thus, both ends of each sample piece 12 are attached to the chuck 11 of the tensile tester 10 so that the measurement portion does not bend. Then, a tensile test is performed at a tensile speed of 100 mm / min, and the elongation E of each sample piece 12 at 10 N load in each direction is measured. Based on the result, the fabric (sample piece 12) of the above-described Equation 1 is used. Elongation rate (%) is calculated. On the other hand, the elongation force of the fabric (sample piece 12) is determined by measuring the stress (N / 25 mm) when the sample piece 12 is stretched 50% by performing a tensile test at a tensile speed of 100 mm / min. It is set as the extension force (N / 25mm) in each direction. In this measurement, the distance L between chucks is 100 mm, and the chuck width W is 65 mm.

Furthermore, it is desirable that the fabric constituting the calf clamping pressure portion 4 covering the rear surface of the lower leg is thicker and the mass per unit area is larger than the fabric constituting the clothing body 2 covering the front surface of the lower leg. Specifically, it is preferable to use a cloth having a mass per unit area of 350 to 550 g / m ² and a thickness of 0.7 mm or more, and a mass per unit area of 400 to 500 g / m ² More preferably, a fabric having a thickness of 0.8 mm or more is used. By configuring the calf tightening pressure portion 4 with a fabric that is thicker and heavier than the clothing main body 2, moderate waist and supportability can be imparted to the portion covering the back of the lower leg. Thereby, the shake of the gastrocnemius muscle can be suppressed and stabilized, and it becomes easier to pull up at the time of wearing, and the ease of wearing improves.

  The ankle tightening pressure part 3 and the calf tightening pressure part 4 described above can be formed, for example, by stacking two or more materials that are the same or different from each other. Specifically, one or more materials that are less stretchable than the fabric constituting the clothing body 2 are overlapped at a predetermined position of the clothing body 2 and the surroundings are sewn, or a plurality of materials are laminated. It can be formed by joining together the fabric having a lower elasticity than the clothing body 2 and the clothing body 2. In addition to the above-described sewing, various methods such as welding and adhesion may be applied to the bonding of the fabrics constituting the ankle clamping pressure portion 3, the calf clamping pressure portion 4 or the clothing body 2 and the lamination of the materials. it can.

  Moreover, it is preferable that the ankle clamping pressure part 3 and the calf clamping pressure part 4 are formed of a cloth different from a part covering the ankle and the calf such as the clothing main body 2. By using a combination of different fabrics in this way, it becomes easy to control the strength of the compression pressure and tightening force applied to the ankle and calf. It is preferable to use a warp knitted fabric having elasticity as the fabric constituting the ankle clamping pressure portion 3 and the calf clamping pressure portion 4, for example, cellulosic fibers such as cotton and rayon, polyamide fibers, polyester fibers or Examples include two-weight ricot fabrics using polyurethane fibers, raschel satin nets, power net fabrics, and other knit fabrics. In particular, it is preferable to use a warp knitted fabric formed of nylon fibers and polyurethane fibers.

  Moreover, if all the parts covering the lower leg are made of elastic and highly compressible fabric, the tightening becomes too strong, making it difficult to wear, and the feeling of fitting and fitting also decrease. For this reason, in the lower limb apparel 1 of the present embodiment, portions other than the ankle clamping pressure portion 3 and the calf clamping pressure portion 4 such as the front of the lower leg above the ankle are from the ankle clamping pressure portion 3 and the calf clamping pressure portion 4. It is also desirable to form with a fabric that is easy to stretch. Further, in order to impart the above-described elongation characteristics (elongation rate, elongation force) to the calf clamping pressure portion 4, a predetermined elongation characteristic is applied to the cloth constituting the portions other than the ankle clamping pressure portion 3 and the calf clamping pressure portion 4. It is desirable to have

  Specifically, the fabric constituting the portion other than the ankle clamping pressure portion 3 and the calf clamping pressure portion 4 has an elongation rate at a load of 10 N than the fabric constituting the ankle clamping pressure portion 3 and the calf clamping pressure portion 4. It is desirable that it is large, the elongation force at 50% elongation is small, or both. In this way, by changing the stretch characteristics between the tightening pressure part and the other parts, and by balancing the stretch characteristics over the entire part covering the lower leg, while applying appropriate pressure to a predetermined site, the wearability, A feeling of wearing and a feeling of fitting can be improved.

  In addition, when the parts other than the ankle tightening pressure portion 3 and the calf tightening pressure portion 4 are formed by the clothing main body 2 like the lower limb clothing 1 shown in FIGS. What is necessary is just to comprise by the cloth | dough with a large elongation rate and small elongation force. Specifically, it is desirable that the elongation rate at 10 N load of the fabric constituting the clothing main body 2 is 80 to 140% in the circumferential direction, 50 to 100% in the vertical direction, and 100 to 120 in the circumferential direction. %, And more preferably 60 to 90% in the vertical direction. On the other hand, the stretching force when the fabric constituting the clothing body 2 is stretched by 50% is desirably 0.5 to 10 N / 25 mm in the circumferential direction, 1 to 15 N / 25 mm in the vertical direction, and 1 in the circumferential direction. It is more desirable to set it to -5N / 25mm and 2-10N / 25mm in the up-down direction.

  It should be noted that the stretch characteristics (elongation rate, extension force) of the fabric constituting the portions other than the ankle clamping pressure portion 3 and the calf clamping pressure portion 4 such as the clothing main body 2 also constitute the above-described calf clamping pressure portion 4. Similar to the elongation characteristics of the fabric, it can be measured by performing a tensile test by the method shown in FIG. Specifically, both end portions of the sample piece 12 cut out from the fabric constituting the measurement target portion are measured so that the circumferential direction of the fabric is parallel to the tensile direction in the measurement in the circumferential direction, and the vertical direction is measured. Then, it attaches so that it may not bend in the chuck | zipper 11 of the tensile testing machine 10 so that the up-down direction and tension | tensile_strength direction of a material may become parallel, and a tensile speed is set to 100 mm / min. And the elongation E of each sample piece 12 at the time of 10N load in each direction is measured, and based on the result, the circumference of the fabric constituting the portion other than the ankle clamping pressure part 3 and the calf clamping pressure part 4 from the above formula 1 The elongation rate (%) in the radial direction or the vertical direction is calculated. Further, the stress (N / 25 mm) when the sample piece 12 is stretched by 50% is measured, and the value is measured in the circumferential direction or the vertical direction of the fabric constituting the portion other than the ankle clamping pressure portion 3 and the calf clamping pressure portion 4. Extension force (N / 65 mm).

  Furthermore, in the lower limb apparel 1 of the present embodiment, it is possible to provide a compression pressure distribution in which the compression pressure gradually decreases from the ankle toward the calf when worn. Thereby, since circulation of the blood flow of the whole lower limbs is promoted, the effect of promoting fatigue recovery can be obtained while the effect of preventing and reducing edema can be improved. In addition, by supporting the gastrocnemius muscle as a whole and not applying excessive pressure, the movement of the muscle contraction is not hindered and the circulation of the blood flow is promoted, so that the reflex of the ankle joint is increased, and injuries such as sprains The effect of preventing the occurrence is improved. Furthermore, since the posture of the joint, muscle and tendon can be suppressed and the posture can be stabilized, the effect of improving the performance of the wearer is also enhanced.

  As described above, in the lower limb apparel 1 of the present embodiment, the ankle tightening pressure portion 3 that covers the ankle and the calf tightening pressure portion 4 that covers the calf have appropriate compression, and the ankle joint and the two gastrocnemius muscles. Since the divergence is tightened, the ankle joint is stabilized and unnecessary muscle shake is suppressed. As a result, wearer's fatigue can be reduced and performance can be improved. Moreover, since the calf clamping pressure part 4 is made difficult to extend in the vertical direction, the calf clamping pressure part 4 and the calf clamping pressure part 4 can be easily attached even when the compression pressure of the ankle clamping pressure part 3 and the calf clamping pressure part 4 is high.

  Next, the clothing for lower limbs according to the second embodiment of the present invention will be described. FIG. 8 is a perspective view showing a wearing state of the lower limb clothing according to the present embodiment. 9 is a front view of the lower limb clothing 21 shown in FIG. 8, FIG. 10 is a rear view, and FIG. 11 is a side view. 8 to 11, the same components as those of the lower limb clothing 1 shown in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 8 to 11, the lower limb garment 21 of the present embodiment is an open toe and open heel type tights-type garment in which toes and heels are exposed when worn. The lower limb garment 21 includes a garment body 22 that covers the lower limbs except for the toes and the heel. An ankle clamping pressure portion 3 and a calf clamping pressure portion 4 are provided on the ankle-covering portion and the calf-covering portion, respectively. It has been. In the lower limb garment 21 as well, the compression pressure at the time of wearing is higher in the ankle tightening pressure portion 3 than in the calf tightening pressure portion 4, and further, the calf tightening pressure portion 4 is extended at the time of 10 N load. The rate is smaller in the vertical direction than in the circumferential direction.

  In addition, the lower limb garment 21 of this embodiment is provided with a knee clamping pressure part 25 and a waist clamping pressure part 26 in addition to the ankle clamping pressure part 3 and the calf clamping pressure part 4. The knee clamping pressure portion 25 in the lower limb garment 21 is composed of an annular portion that compresses the upper foot part of the lower leg below the patella and a patella portion that compresses the periphery of the patella. For example, 7 to 40 hPa. And the patella ligament located above and below the patella portion is fixed in a compressed state by the knee tightening pressure portion 25.

  If exercise is used and the knee is used violently, the quadriceps muscles lose flexibility with fatigue and the patella moves up and down. In the lower limb garment 21 of the present embodiment, the knee tightening pressure portion 25 is used. Therefore, the movement of the patella is suppressed and the patella ligament is held in place. As a result, knee failure can be prevented and the wearer's performance is stabilized.

  Further, the patella portion of the knee clamping pressure portion 25 is provided so as to surround the patella from the side surface of the knee portion toward the front surface, and the patella itself is configured not to be compressed, so that knee flexion is regulated. There is nothing. Further, since the compression action is naturally applied greatly during bending, the action can be exerted more effectively.

  Furthermore, the waist tightening pressure part 26 applies a compression action to the waist part to relieve the external action on the waist and keep the waist stable. The compression pressure at the time of wearing is, for example, 5 to 30 hPa. It is. By providing the waist tightening pressure portion 26, it is possible to prevent a waist failure and to stabilize the wearer's performance.

  The knee clamping pressure part 25 and the waist clamping pressure part 26 can be formed by laminating two or more materials which are the same or different from each other, like the ankle clamping pressure part 3 and the calf clamping pressure part 4 described above. Specifically, one or more materials that are less stretchable than the clothing body 2 are overlapped at a predetermined position of the clothing body 22 and the surroundings are sewn, or a plurality of materials are laminated to form the clothing body 22. It can be formed by joining the fabric having the lower stretchability and the clothing body 22 together. In that case, like the clothing main body 2 in the lower limb clothing 1 of the first embodiment described above, the clothing main body 22 is made of a fabric that is more easily stretched than the fabric constituting the ankle clamping pressure portion 3 and the calf clamping pressure portion 4. It is desirable to use it. Specifically, a fabric having a higher elongation rate at 10N load and / or a smaller elongation force at 50% elongation than the fabric constituting the ankle clamping pressure portion 3 and the calf clamping pressure portion 4 should be used. Is desirable.

  As described above, the lower limb garment 21 of the present embodiment is provided with the knee tightening pressure portion 25 and the waist tightening pressure portion 26 in addition to the ankle tightening pressure portion 3 and the calf tightening pressure portion 4, so that it is easy to wear. Without lowering, it is possible to prevent the knee and lower back from being broken, and to further enhance the performance improvement effect of the wearer. The configuration and effects of the lower limb clothing 21 other than those described above are the same as those of the lower limb clothing 1 of the first embodiment described above.

  In the first and second embodiments described above, open toe and open heel type high socks type clothing and tights type clothing have been described as examples, but the present invention is not limited to these forms. What is necessary is just to provide the part which presses and covers an ankle and a calf at least. Examples of forms other than the high socks type and the tights type include socks type, over knee type, stocking type, and cylindrical type. Furthermore, in a form other than the cylindrical shape, the toes and / or the heels may be covered.

  Hereinafter, the effects of the present invention will be specifically described with reference to Examples and Comparative Examples of the present invention. In this example, clothing for lower limbs of Examples 1 to 3 and Comparative Example 1 was prepared according to the following procedure, and the ease of wearing, fatigue reduction, and stability of the ankle and calf were evaluated.

Example 1
As Example 1 of the present invention, a lower limb apparel 1 of the first embodiment shown in FIGS. First, each part which comprises the clothing main body 2, the ankle clamping pressure part 3, and the calf clamping pressure part 4 was prepared. Specifically, (A) the part for clothing main body 2 was cut out from a two-weight ricot knitted fabric made of polyester fiber and polyurethane fiber into a shape covering the entire lower leg excluding the calf and ankle. Also, (B) parts for the ankle tightening pressure part 3 are cut out in a predetermined shape from a satin net fabric (longitudinal knitted fabric) made of polyamide fiber and polyurethane fiber, and these are laminated in three layers with an adhesive. Formed. Furthermore, (C) The parts for the calf clamping pressure part 4 are cut out into two pieces from a satin net fabric (longitudinal knitted fabric) made of polyamide fiber and polyurethane fiber, and laminated into two layers with an adhesive. Formed.

  Next, the parts for the clothing main body 2, the ankle clamping pressure section 3, and the calf clamping pressure section 4 are joined together to form a compression pressure distribution in which the compression pressure gradually decreases from the ankle to the calf. The overall shape of the lower limb apparel of Example 1 was formed.

(Examples 2 and 3)
As Examples 2 and 3 of the present invention, the lower limb apparel 21 of the second embodiment shown in FIGS. 8 to 11 was produced. In the present embodiment, the garment body 22 and the calf tightening pressure part 4 are made of a cloth having a different knitting density, yarn thickness and elongation characteristics from the cloth used in the first embodiment. .

  First, each part which comprises the clothing main body 22, the ankle clamping pressure part 3, the calf clamping pressure part 4, the knee clamping pressure part 25, and the waist clamping pressure part was prepared. Specifically, (A) the part for clothing main body 22 was cut out from a two-weight ricot knitted fabric made of polyester fiber and polyurethane fiber into a shape covering the entire thigh and lower thigh excluding the calf and ankle. Also, (B) parts for the ankle tightening pressure part 3 are cut out in a predetermined shape from a satin net fabric (longitudinal knitted fabric) made of polyamide fiber and polyurethane fiber, and these are laminated in three layers with an adhesive. Formed.

  (C) The parts for the calf clamping pressure part 4 were formed by cutting two pieces into a predetermined shape from a satin net fabric (vertical knitted fabric) made of polyamide fiber and polyurethane fiber, and laminating them in two layers with an adhesive. . Further, (D) a part for the knee clamping pressure part 25 was cut out from a satin net fabric (vertical knitted fabric) made of polyamide fiber and polyurethane fiber. Furthermore, (E) the parts for the waist clamping pressure part 26 were cut out from a satin net fabric (vertical knitted fabric) made of polyamide fibers and polyurethane fibers.

  Next, the parts for the clothing main body 22, the ankle clamping pressure part 3 and the calf clamping pressure part 4 are joined together to form a compression pressure distribution in which the compression pressure gradually decreases from the ankle toward the calf. did. Furthermore, after laminating each part for the knee clamping pressure part 25 and the waist clamping pressure part 26 at a predetermined position of the clothing main body 22 using an adhesive, the periphery thereof is sewn to the clothing main body 22, and the examples 2 and 3 are used. It was used as clothing for the lower limbs.

(Comparative Example 1)
As a comparative example of the present invention, the garment body 2 and the calf clamping pressure portion 4 are different from the fabric used in the above-described embodiment 1 in terms of knitting density, yarn thickness, and elongation characteristics. In the same manner as in Example 1, a leg garment for Comparative Example 1 was produced.

  Next, the evaluation method of each garment for the lower limbs of the above-described examples and comparative examples will be described.

(1) Elongation rate of calf clamping pressure part The elongation rate (%) of the calf clamping pressure part in each of the lower limb apparel of the examples and comparative examples is the circumferential direction and the vertical direction by the method shown in FIGS. A tensile test was performed to measure an elongation E (mm) at a load of 10 N, and the calculation was performed from the above formula 1 based on the result. For the tensile test, a tensile tester (Autograph AG-I, load cell 100 kg) manufactured by Shimadzu Corporation was used, the tensile speed was 100 mm / min, the chuck width W was 65 mm, and the distance L between chucks was 100 mm.

(2) Elongation force of calf clamping pressure part About each leg garment of the examples and comparative examples, a tensile test is performed in the circumferential direction and the vertical direction by the method shown in FIG. 5 and FIG. The stress (N / 65 mm) at 50% elongation was measured, and the value was defined as the elongation force (N / 65 mm) at the calf clamping pressure portion. Note that a tensile tester (Autograph AG-I, load cell 100 kg) manufactured by Shimadzu Corporation was used for the tensile test, the tensile speed was 100 mm / min, the chuck width W was 65 mm, and the inter-chuck distance L was 100 mm. .

(3) Elongation rate of the fabric constituting each part The elongation rate (%) of the fabric constituting the calf clamping pressure portion and the fabric body constituting the clothing main body in the clothing for each lower limb of Examples and Comparative Examples is the figure described above. The tensile test was performed by the method shown in FIG. At that time, for the measurement in the circumferential direction, a rectangular sample piece cut out from the fabric into a size of 200 mm in the circumferential direction and 25 mm in the vertical direction is used. For the measurement in the vertical direction, 25 mm in the circumferential direction, A rectangular sample piece cut into a size of 200 mm in the vertical direction was used.

  In addition, a tensile tester (Autograph AG-I, load cell 100 kg) manufactured by Shimadzu Corporation was used for the tensile test, the tensile speed was 100 mm / min, the chuck width W was 65 mm, and the inter-chuck distance L was 100 mm. And the elongation E (mm) of the sample piece at the time of 10N load was measured, and based on the result, the elongation ratio (%) in the circumferential direction and the vertical direction of each fabric was calculated.

(4) Elongation force of fabric constituting each part The fabric constituting the calf clamping pressure portion of each lower limb clothing and the fabric constituting the clothing main body of the examples and comparative examples are wrapped around by the method shown in FIG. A tensile test was performed in the radial direction and the vertical direction, and the stress (N / 25 mm) when the sample piece was stretched 50% was measured, and the value was defined as the elongation force (N / 25 mm) of each fabric. Note that the tensile test was performed using a specimen similar to the above-described elongation rate and using a tensile tester (Autograph AG-I, load cell 100 kg) manufactured by Shimadzu Corporation. At that time, the tensile speed was 100 mm / min, the chuck width W was 65 mm, and the distance L between chucks was 100 mm.

(5) Ease of Wearing Ten healthy males in their 30s were subjects, and the ease of wearing of the lower limb apparel of the examples and comparative examples was evaluated. Specifically, each of the lower limb apparel of the example and the comparative example is actually worn, and 2 points are given when the subject feels “no problem in wearing”, and 1 when “feels somewhat easy to wear”. If the score was “difficult to wear”, the score was 0, and the evaluation was made in three stages. The total score of all subjects was defined as the ease of wearing each garment. That is, in this evaluation, the one with a high score is the lower limb apparel that is more easily worn.

(6) Fatigue alleviation feeling Ten healthy males in their 30s were subjects, and the fatigue feeling after walking for 2 hours after wearing the clothing for each leg of Examples and Comparative Examples was evaluated. Specifically, if you feel that “there is a greater fatigue reduction effect than when you are not wearing”, you get 2 points. When it was felt that there was no (not changed), it was evaluated as 3 points, and the total score of all subjects was used as the fatigue reduction feeling of each lower limb apparel. That is, in this evaluation, those with a high score are lower limb apparel with a higher fatigue reduction effect.

(7) Stability of ankle joint and calf Evaluate the stability of ankle joint and calf when walking for 2 hours with 10 healthy males in their 30s wearing the clothing for each leg of the examples and comparative examples. did. Specifically, 2 points if you feel "very stable", 1 point if you feel "somewhat stable", 0 points if you feel "not stable (not changed)" As the evaluation, it was evaluated in three stages, and the total value of the scores of all the subjects was defined as the stability of the ankle joint and calf in each lower limb clothing. That is, in this evaluation, the one with a high score is a lower limb apparel that has a higher effect of stabilizing the ankle joint and calf.

  The above results are summarized in Table 1 below.

  As shown in Table 1 above, the lower limb apparel of Comparative Example 1 is larger in the vertical direction than the circumferential direction in the calf clamping pressure portion at 10 N load, and is out of the scope of the present invention. The evaluation of ease of installation was low. On the other hand, in the clothing for lower limbs of Examples 1 to 3, the elongation rate at the time of 10N load of the calf clamping pressure portion is smaller in the vertical direction than in the circumferential direction, and the elongation characteristic is predetermined. Therefore, compared with the lower limb apparel of Comparative Example 1, the wearability was excellent, and the fatigue reduction effect and the stability of the ankle and calf were also good evaluations. From the above results, it was confirmed that the lower limb apparel of this example is effective in improving the wearer's performance and is easily removable.

It is a perspective view which shows the mounting state of the clothing for lower limbs which concerns on the 1st Embodiment of this invention. It is a front view of the clothing 1 for lower limbs shown in FIG. It is a rear view of the clothing 1 for lower limbs shown in FIG. It is a side view of the clothing 1 for lower limbs shown in FIG. (A) It is a perspective view which shows typically the measuring method of the expansion | extension characteristic of the circumferential direction, (b) is a side view which shows the measurement location. (A) is a perspective view which shows typically the measuring method of the expansion | extension characteristic of an up-down direction, (b) is a side view which shows the measurement location. It is a perspective view which shows typically the measuring method of the expansion | extension characteristic of dough. It is a perspective view which shows the mounting state of the clothing for lower limbs which concerns on the 2nd Embodiment of this invention. It is a front view of the clothing 21 for lower limbs shown in FIG. It is a rear view of the clothing 21 for lower limbs shown in FIG. It is a side view of the clothing 21 for lower limbs shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,21 Apparel for lower limbs 2,22 Apparel body 3 Ankle tightening pressure part 4 Calf tightening pressure part 5 Lower leg maximum circumference 10 Tensile tester 11 Chuck 12 Sample piece (cloth)
25 Knee tightening pressure part 26 Hip tightening pressure part

Claims (9)

Clothing for lower limbs that covers at least ankles and calves,
The portion covering the ankle has higher compression pressure when worn than the portion covering the calf,
And the part which covers the said calf is the clothing for leg | limbs whose elongation rate at the time of 10N load is smaller in the up-down direction than the circumferential direction.   2. The lower limb garment according to claim 1, wherein the stretch rate at the time of 10 N load of the portion covering the calf is 15 to 35% in the circumferential direction and 5 to 25% in the vertical direction.   The lower limb apparel according to claim 1 or 2, wherein the portion covering the calf has a greater stretching force when stretched by 50% in the vertical direction than in the circumferential direction.   The extension force at the time of 50% extension of the portion covering the calf is 20 to 40 N / 65 mm in the circumferential direction, and 50 to 90 N / 65 mm in the vertical direction. Clothing for the lower limbs according to item 1.   The dough constituting the portion covering other than the ankle and calf has a higher elongation rate at 10N load than the dough constituting the portion covering the ankle and the portion covering the calf. The clothing for lower limbs according to any one of 4.   The fabric constituting the part covering the portions other than the ankle and the calf has an extension force when stretched 50% smaller than the fabric constituting the portion covering the ankle and the portion covering the calf. The clothing for lower limbs according to any one of 1 to 5.   The garment for a lower limb according to any one of claims 1 to 6, wherein a pressure of a portion covering the ankle is 18 to 67 hPa, and a pressure of a portion covering the calf is 9 to 54 hPa. .   The clothing for lower limbs according to any one of claims 1 to 7, wherein a compression pressure distribution is provided in which the compression pressure gradually decreases from the ankle toward the calf when worn. The garment for a lower limb according to any one of claims 1 to 8, wherein the portion covering the calf is formed by laminating two or more materials that are the same or different from each other.

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