Innerwear

The innerwear addresses the issue of fatigue and instability in middle-aged and elderly individuals by using a body fabric with high stretch recovery rates and strategic tightening portions to support hip and knee joints, enhancing balance and reducing strain during walking.

JP7737876B2Active Publication Date: 2025-09-11GUNZE LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
JP2021191216
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-25
Publication Date
2025-09-11
Estimated Expiration
2041-11-25

AI Technical Summary

Technical Problem

Conventional sports tights with high stretch recovery material can become a burden for middle-aged or elderly individuals with reduced muscle strength and joint function, leading to increased fatigue and instability during walking.

Method used

Innerwear designed with a body fabric and multiple tightening portions having higher stretch recovery rates, including thigh, front and rear lower leg tightening portions, and a circular kneecap and patella tightening portions, to assist hip and knee joint movements while maintaining balance and reducing strain.

Benefits of technology

The innerwear helps middle-aged and elderly individuals maintain balance and reduce fatigue by assisting hip and knee joint movements, providing stable support and comfort during daily activities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007737876000001
    Figure 0007737876000001
  • Figure 0007737876000002
    Figure 0007737876000002
  • Figure 0007737876000003
    Figure 0007737876000003
Patent Text Reader

Abstract

To provide inner wear which maintains balance during walking, assists in flexion or extension of hip joints and knee joints and can reduce fatigue by allowing middle-aged and elderly people with decreased muscle strength and joint functions to wear it in daily lives.SOLUTION: Inner wear is constituted by a stretchable body fabric and a plurality of tightening parts with a higher elongation recovery rate than the body fabric and covers at least the waist to ankles of a wearer. The tightening parts include: belt-like thigh tightening parts which are arranged on right and left front bodies and extend above patellas from positions above greater trochanters when worn; a belt-like anterior lower leg tightening part extending from below the patellas to the ankles when worn; and a posterior lower leg tightening part including a belt-like medial gastrocnemius tightening part which covers at least a part of a medial gastrocnemius muscle and extends to the ankles when worn and a belt-like lateral gastrocnemius tightening part which covers at least a part of a lateral gastrocnemius muscle and extends to the ankles. The tightening parts maintain balance of walking and assist in flexion or extension of hip joints and knee joints.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to innerwear worn in daily life by middle-aged and elderly people with reduced muscle strength and joint function to support walking and reduce fatigue, and more specifically to innerwear that is configured with a body fabric that exhibits elasticity and a plurality of tightening parts that have a higher elongation recovery rate than the body fabric, and that covers the wearer from at least the waist to the ankles. [Background technology]

[0002] Patent Document 1 proposes tights suitable for training such as running, which have the function of applying an assist force in the direction of flexing the hip joint when running or walking, thereby increasing the range of motion for flexing the hip joint.

[0003] The tights are made of a material with stretch recovery force and have areas that fit snugly against the body, covering the abdomen, buttocks, hip joints, and legs up to at least the top of the kneecap. A material with greater stretch recovery force than the material of the back body is placed in the area within the rectus femoris muscle of the thigh from the front of the opening of the front body toward the kneecap, for a length that reaches at least the top of the kneecap. This material with greater stretch recovery force stretches when the hip joint is extended, and when the hip joint is flexed, the stretched material with greater stretch recovery force contracts, assisting the hip joint flexion. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] WO2013-179440 publication Summary of the Invention [Problem to be solved by the invention]

[0005] The conventional sports tights mentioned above use a material with greater stretch recovery than the material in the back, placed from the front of the opening to the top of the kneecap in the front body, to promote hip flexion and increase stride length, thereby correcting form and improving performance.

[0006] However, when such sports tights are worn by middle-aged or elderly people with reduced muscle strength and joint function, the above-mentioned assisting force can actually become a burden, making them more likely to get tired.

[0007] Furthermore, in the case of tights such as those disclosed in Patent Document 1, in which a material with greater stretch recovery than the material of the back body is placed continuously from the opening of the front body, past the kneecap, to the ankle, a bending structure is adopted in which the lower leg is tilted backward from the longitudinal axis of the thigh to facilitate backward bending of the knee joint. As a result, even in an extended state without bending the knee, a force acts in the direction of backward tilt of the lower leg, so for middle-aged and elderly people with reduced muscle strength and joint function, simply wearing the tights puts a heavy burden on the legs.

[0008] In view of the above-mentioned problems, the object of the present invention is to provide innerwear that can be worn in daily life by middle-aged and elderly people with reduced muscle strength and joint function, helping them maintain balance when walking and assisting the flexion and extension movements of the hip and knee joints, thereby reducing fatigue. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, a first characteristic configuration of innerwear according to the present invention is innerwear that is configured with a body fabric that exhibits stretchability and a plurality of tightening portions that have a greater stretch recovery rate than the body fabric, and that covers at least the wearer from the waist to the ankles, and the tightening portions are arranged on the left and right front body parts, and include: strip-shaped thigh tightening portions that extend from a position above the greater trochanter to above the patella when worn; strip-shaped front lower leg tightening portions that extend from below the patella to the ankle when worn; and rear lower leg tightening portions that include: strip-shaped medial calf tightening portions that cover at least a portion of the medial gastrocnemius muscle and extend to the ankle when worn; and strip-shaped lateral calf tightening portions that cover at least a portion of the lateral gastrocnemius muscle and extend to the ankle when worn; In a worn state, the region corresponding to the kneecap is provided with a circular kneecap having a smaller elongation recovery rate than the tightening portion, and a circular patella tightening portion is provided around the kneecap having a larger elongation recovery rate than the kneecap, The tightening portions maintain balance while walking and assist the flexion and extension of the hip and knee joints.

[0010] The multiple tightening parts, which have a greater stretch recovery rate than the main fabric, assist movement around the wearer's hip and knee joints. In particular, by arranging the thigh tightening parts so that they extend from a position above the greater trochanter to above the patella, the assist force for hip flexion and other movements is appropriately adjusted so that even middle-aged and elderly people with reduced muscle strength and joint function are not placed under excessive strain when wearing the garment, making it easy to put on and take off on a daily basis. Furthermore, the inclusion of front and rear lower leg tightening parts assists flexion and extension movements around the knee joint, allowing good balance to be maintained when walking. Furthermore, the patella tightening portion arranged around the circular kneecap tightens the area around the patella, preventing the innerwear from slipping at the knee and providing good support for the knee joint when walking, thereby increasing stability when walking.

[0011] The second characteristic configuration is, in addition to the first characteristic configuration described above, that the stretch rate of the body fabric including at least the thigh tightening portions that cover the thighs of the wearer is greater than the stretch rate of the body fabric.

[0012] The stretch rate of the body fabric, including at least the thigh tightening portion that covers the wearer's thighs, is greater than the stretch rate of the body fabric, so while it exerts a tightening force when the hip joint is flexed, it stretches more easily than the body fabric when the hip joint is extended, and the assist force is adjusted to an appropriate level without interfering with hip joint movement.

[0013] Same number three The characteristic configuration of the above one In addition to the characteristic configuration of (a), the present invention is characterized in that it is provided with a knee tightening portion that extends from the outer edge of the patella tightening portion to the popliteal fossa and has a greater extension recovery rate than the kneecap, but a smaller extension recovery rate than the patella tightening portion.

[0014] The knee tightening part supports the muscles around the knee joint, stabilizing the balance of the lower limbs when walking.

[0015] Same number four The characteristic configuration of the above three In addition to the characteristic configuration of above, the anterior crus compressing portion is connected to the knee compressing portion or the patella compressing portion.

[0016] By connecting the front crus tightening portion to the knee tightening portion or patella tightening portion, the tightening effect of the front crus tightening portion is increased, making walking more stable.

[0017] Same number Five The characteristic configuration of the above is the first to second four In addition to any one of the above characteristic configurations, when worn, the front crus tightening portion extends to the tarsal bones and is equipped with a metatarsal bone fixing portion that wraps around the foot in a band-like manner to include part of the metatarsal bones, and the front crus tightening portion is connected to the metatarsal bone fixing portion.

[0018] By extending the anterior crus tightening portion up to the tarsal bones and connecting it to the metatarsal fixing portion, the ankle and the area around the ankle joint are properly supported, stabilizing walking.

[0019] Same number Six The characteristic configuration of the above is the first to second Five In addition to any one of the characteristic configurations above, the body fabric, the thigh tightening portions, the front crus tightening portions, and the rear crus tightening portions are made of weft knitted fabrics.

[0020] When the body fabric and the tightening parts including the thigh tightening parts, front lower leg tightening parts, and rear lower leg tightening parts are made of stretchy weft knit fabric, the garment is easy to put on and take off, provides an excellent wearing comfort, reduces the burden on everyday walking movements, and allows for good walking balance.

[0021] Same number seven The characteristic configuration of the above is the first to second Six In addition to any one of the above features, a gusset fabric separate from the body fabric is joined to the crotch area of ​​each pair of left and right legs.

[0022] The presence of gusset fabric reduces the load on the hip joints and reduces the strain on walking movements. [Effects of the Invention]

[0023] As described above, according to the present invention, it is possible to provide innerwear that can be worn in daily life by middle-aged and elderly people with reduced muscle strength and joint function, helping them maintain balance when walking and assisting with flexion and extension movements of the hip and knee joints, thereby reducing fatigue. [Brief explanation of the drawings]

[0024] [Figure 1] (a) is an explanatory diagram of the innerwear according to the present invention as seen from the front, (b) is an explanatory diagram of the same as seen from the back, (c) is an explanatory diagram of the same as seen from the side, and (d) is an explanatory diagram of the magnitude of the stretch recovery rate of the tightening parts shown in the explanatory diagrams shown in (a) to (c). [Figure 2] Illustrative diagram of elongation recovery rate and elongation rate [Figure 3] (a) is an explanatory diagram showing the positions of the tightening parts of the innerwear corresponding to the wearer's skeleton, and (b) is an explanatory diagram of the foot bones as seen from the dorsum of the foot. [Figure 4] FIG. 10 is a front view of the innerwear according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0025] An example of the innerwear according to the present invention will be described below with reference to the drawings. As shown in Figures 1(a) to 1(c), innerwear 1 is constructed using a weft knit fabric, which is an example of a stretchable body fabric 2, to cover at least the wearer's waist to ankles, and includes a torso section 1A with an opening 10 formed at the top, and left and right leg sections 1B, 1C extending below torso section 1A. In this embodiment, nylon yarn is used as the ground yarn that constitutes the weft knit fabric. Note that the type of ground yarn is not limited to nylon yarn, and polyester yarn or a blend of polyester yarn and cotton yarn can also be used.

[0026] The torso 1A is formed by integrating the front and back body sections from a cylindrically knitted circular fabric (weft knitted fabric), and below the torso 1A, the circular knitted fabric is cut vertically and the cut edges are sewn together to form the left and right leg sections 1B and 1C.

[0027] A gusset fabric 5 separate from the body fabric 2 is joined to the crotch of each pair of left and right leg portions 1B, 1C. The presence of the gusset fabric 5 reduces the load on the hip joints, reducing the load on walking movements.

[0028] The opening 10 is made by knitting a predetermined number of polyurethane yarns in the wale direction onto nylon yarn, which is the ground yarn of the weft knit fabric that makes up the body fabric 2, and folding it back into a bag shape to form a band-like torso slip-prevention portion 10A.

[0029] At the tip sides of the left and right leg parts 1B, 1C, openings 11 are formed on the back to expose the heels of the wearer, and the tip side 12 is configured in a cylindrical shape to cover the circumference of the foot.

[0030] The innerwear 1 described above is provided with a body fabric 2 that exhibits stretchability, as well as a plurality of tightening portions 3 that have a higher stretch recovery rate than the body fabric 2. The tightening portions 3 include thigh tightening portions 3A, front crus tightening portions 3B, and rear crus tightening portions 3C, and the rear crus tightening portions 3C include medial sural tightening portions 3D and lateral sural tightening portions 3E.

[0031] The thigh tightening portions 3A are arranged on the left and right front body parts, and when worn, extend in a band-like shape below the torso anti-slip portion 10A, from a position above the greater trochanter 21 (see Figure 3(a)) to a position above the patella 22 (see Figure 3(a)).

[0032] When worn, the front crus tightening portion 3B extends in a band-like manner from below the patella 22 (see FIG. 3(a)) to the ankle. The medial calf tightening portion 3D covers at least a portion of the medial gastrocnemius muscle when worn, and extends in a band-like manner to the ankle. The lateral calf tightening portion 3E covers at least a portion of the lateral gastrocnemius muscle when worn, and extends in a band-like manner to the ankle. In FIG. 1(b), the lateral calf tightening portion 3E and the medial calf tightening portion 3D extend beyond the opening 11 in the heel and are connected to the metatarsal tightening portion, but the lateral calf tightening portion 3E and the medial calf tightening portion 3D may also be configured to extend up to the vicinity of the opening 11.

[0033] In other words, the movement around the wearer's hip joint and knee joints is assisted by the action of the multiple tightening portions 3, which have a greater stretch recovery rate than the main fabric 2. In particular, by arranging the thigh tightening portion 3A so that it extends from a position above the greater trochanter 21 (see FIG. 3(a)) to above the patella 22 (see FIG. 3(a)), the assist force for hip joint flexion and other movements is appropriately adjusted so that even middle-aged and elderly people with reduced muscle strength and joint function are not placed under excessive strain when wearing the garment, making it easy to put on and take off on a daily basis. Furthermore, by providing the front crus tightening portion 3B and the rear crus tightening portion 3C, flexion and extension movements around the knee joints are assisted, allowing good balance to be maintained when walking.

[0034] The stretch rate of the main fabric, including at least the thigh tightening portions 3A that cover the thighs of the wearer, is set to a value greater than the stretch rate of the main fabric 2, thereby allowing the assist force on the hip joints to be adjusted appropriately. It is preferable that the stretch rates of the other tightening portions 3 are also set to values ​​greater than the stretch rate of the main fabric 2.

[0035] In this specification, the elongation recovery rate and elongation rate are defined as values ​​measured by the following method in accordance with JIS L 1096:2010 L 8.16 E method (constant load method), as shown in Figure 2. The elongation recovery rate is also called the elongation modulus.

[0036] The test pieces for measuring the stretch recovery rate were taken from the thigh tightening portion 3A for the high tightening portion, the knee tightening portion 3G for the medium tightening portion, and the body fabric 2 from the area covering the hamstrings, and a sample made of the same knitted structure was prepared for the trunk slip prevention portion and metatarsal fixation portion, and taken from this sample. The size of the taken test piece was 20mm wide x 200mm long, the test width was 20mm, the grip spacing was 100mm, the constant load was 4.9N, and the tensile speed was 200mm / min. Under the test conditions, the test piece was repeated five times using a tensile tester (autograph), and the stretch recovery rate of the fabric after five times was calculated using the following formula.

[0037] The test pieces for measuring the elongation rate were taken from the main fabric including the thigh tightening portion 3A for the high tightening portion, the knee tightening portion 3G for the medium tightening portion, and the main fabric 2 from the area covering the hamstrings, and a sample made of the same knitted structure was prepared for the trunk slip prevention portion and metatarsal fixation portion, and taken from that sample. The size of the test piece for measuring the elongation rate was 100mm wide x 200mm long, the test width was 100mm, the grip spacing was 100mm, and the measurement was carried out under the same conditions as for measuring the elongation recovery rate, and the elongation rate of the fabric after 5 times was calculated using the following formula.

[0038] When fixing the test specimen to the tensile testing machine (autograph) in measuring the stretch recovery rate and elongation rate, the test specimen is fixed in a state where no tension is being applied to the entire test specimen (equivalent to the state where the test specimen is placed) with the grip distance set to 100 mm. When taking test specimens of the body fabric that includes the thigh tightening portion 3A, the test specimen is taken so that the center line of the widthwise center of the thigh tightening portion 3A coincides with the center line of the widthwise direction of the test specimen. Elongation recovery rate (%)={(L1-L2) / (L1-L0)}×100 Elongation rate = {(L1-L0) / L0} x 100 In addition, in this specification, the elongation recovery rate (elastic modulus) is used as an index of the tightening force, and the larger the elongation recovery rate (elastic modulus) is, the stronger the tightening force is.

[0039] As shown in FIG. 3(a), the thigh tightening portion 3A extends below the shoe opening 10, starting at a position approximately L10 = 2 cm above the greater trochanter 21 and ending at a position approximately L20 = 3 cm above the top of the patella 22. The distance L20 from the top of the patella 22 can be set appropriately to suit the expected body shape of the wearer. Increasing the distance L20 reduces the burden on the wearer's legs, but also reduces the support force; decreasing the distance L20 increases the support force, but increases the burden on the wearer. The distance L20 is not limited to the above-mentioned numerical values, and is preferably set in the range of 2 to 10 cm, and more preferably in the range of 3 to 6 cm. L10 is preferably set in the range of 0.5 to 8 cm.

[0040] In this embodiment, the body fabric 2 is made of jersey knit, but the knitting structure is not particularly limited, and fabrics such as rib knit and smooth knit can be used, and it is also possible to use warp knit fabric in addition to weft knit fabric.

[0041] The tightening portions 3 can be knitted integrally with the knitted fabric that makes up the body fabric 2, and can be configured to obtain the desired tightening force by appropriately changing the type of knitting yarn, knitting density, knitting structure, number of knitting yarns, etc. The same applies to the other tightening portions 3 described below in addition to the above-mentioned tightening portions 3.

[0042] For example, the tightening parts 3 can be made of fabric made of a knitting structure that includes knitting, miss knitting, tuck knitting, or a combination of these. The tightening parts 3 of this embodiment are knitted using knitting and miss knitting, but the knitting structures can be combined in consideration of the tightening force, elongation rate, etc. depending on the function required for each part. The strength of the tightening force can be adjusted by the arrangement of the knitting, miss knitting, and tuck knitting, the number of times the arrangement is repeated, etc.

[0043] As another method, the tightening parts 3 may be formed by contacting a rubber material such as neoprene, a PU panel, or the like, onto the body fabric 2. The tightening parts 3 may also be formed by applying a coating of resin or the like to the top surface of the body fabric 2.

[0044] The material of the fabric including the body fabric 2 and the tightening portions 3 is not particularly limited and can be any material, and as mentioned above, materials such as polyester, polyurethane, polyester cotton blends, etc. can be used.

[0045] The innerwear 1 described above further comprises, in the region corresponding to the kneecap when worn, a circular kneecap 4 which has a smaller stretch recovery rate than the tightening portion 3, and a circular (annular) patella tightening portion 3F which has a larger stretch recovery rate than the kneecap 4, around the kneecap 4.

[0046] When not being worn, the kneecap 4 is formed into a vertically elongated oval shape with a major axis of 60 mm and a minor axis of 30 mm, and is made of the same knitting structure as the main fabric 2, with a similar elongation recovery rate. Therefore, the kneecap 4 does not feel stiff when bending the knee joint, reducing the strain on the wearer's knees.

[0047] The patella tightening portion 3F is arranged in an elliptical ring shape with a width of 30 to 40 mm around the kneecap 4, and by tightening the periphery of the patella 22 (see Figure 3(a)), slippage at the knee is suppressed, the knee joint is well supported when walking, and a sense of stability is enhanced. The patella tightening portion 3F uses the same knitting structure as the thigh tightening portion 3A, and is set to have approximately the same stretch recovery rate as the thigh tightening portion 3A.

[0048] Furthermore, the innerwear 1 is provided with a knee tightening portion 3G that extends from the outer edge of the patella tightening portion 3F to the popliteal fossa and has a greater stretch recovery rate than the kneecap 4 but a smaller stretch recovery rate than the patella tightening portion 3F.

[0049] It is preferable that the knee tightening portion 3G be positioned in a range of approximately 10 to 15 cm in length vertically in the area corresponding to the popliteal fossa when not being worn. The knee tightening portion 3G supports the muscles around the knee, stabilizing the balance of the lower limbs when walking.

[0050] The front crus tightening portion 3B is positioned so that it connects to the knee tightening portion 3G, thereby increasing the effects of the front crus tightening portion 3B and the rear crus tightening portion 3C, making walking more stable.

[0051] Furthermore, when the innerwear 1 is worn, the front crus tightening portions 3B extend up to the tarsal bones 25 (see FIG. 3(b)), and are equipped with metatarsal fixing portions 6 that wrap around the foot in a band-like manner to include part of the metatarsal bones 26 (see FIG. 3(b)), and the front crus tightening portions 3B are arranged so as to be connected to the metatarsal fixing portions 6. By extending the front crus tightening portions 3B up to the tarsal bones 25 and connecting them to the metatarsal fixing portions 6, the ankles and areas around the foot joints are properly supported, resulting in stable walking. Note that reference numeral 27 in FIG. 3(b) denotes the phalanges.

[0052] As with the opening 10, a predetermined number of polyurethane threads may be knitted in the wale direction onto the nylon thread that forms the base thread of the body fabric 2 at the tip end 12, and folded back into a bag-like shape to form a band-like toe slippage prevention part 12A.In this case, the metatarsal bone fixing part 6 is realized by the toe slippage prevention part 12A.

[0053] As described above, the thigh tightening portions 3A, front crus tightening portions 3B, rear crus tightening portions 3C, patella tightening portions 3F, and knee tightening portions 3G are made of weft knit fabric, just like the body fabric 2. When the body fabric 2 and the tightening portions 3, including the thigh tightening portions 3A, front crus tightening portions 3B, and rear crus tightening portions 3C, are made of stretchy weft knit fabric, the entire garment can be made thin, making it possible to achieve innerwear 1 that is easy to put on and take off and provides an excellent fit, reducing the strain on everyday walking movements and allowing for good walking balance.

[0054] Furthermore, the innerwear 1 is provided with abdominal tightening portions 3I on the front body below the torso slip-preventing portion 10A, and buttocks tightening portions 3J on the back body.

[0055] In Figure 1 (d), the differences in the stretch recovery rate of the body fabric 2 and the tightening portions 3 are shown by the density of the hatching. The body fabric 2, which has the smallest stretch recovery rate, is shown by the unhatched rectangle on the left edge, and the thigh tightening portion 3A, front crus tightening portion 3B, rear crus tightening portion 3C, patella tightening portion 3F, and buttocks tightening portion 3J, which correspond to the high tightening portions where the stretch recovery rate is the greatest, are shown by the densely hatched rectangle on the right edge, and the knee tightening portion 3G and abdomen tightening portion 3I, which correspond to the medium tightening portions where the stretch recovery rate is an intermediate value, are shown by the sparsely hatched rectangle in the middle.

[0056] In this embodiment, the stretch recovery rate of the high tightening portion is set to 93.6%, the stretch recovery rate of the medium tightening portion is set to 83.8%, and the stretch recovery rate of the body fabric 2 is set to 80.8%, and it is preferable that the ratio of the stretch recovery rate of each tightening portion to the stretch recovery rate of the body fabric 2 is set to a range of 110 to 120% for the high tightening portion (117.0% in this embodiment) and a range of 102 to 110% for the medium tightening portion (104.7% in this embodiment).

[0057] Furthermore, the stretch rate of the body fabric including the high tightening portions in the thighs is set to 66.3%, the stretch rate of the medium tightening portions is 56.8%, the stretch rate of the body fabric 2 is 61.6%, and the stretch rate of the torso slip-stopping portions 10A and the toe slip-stopping portions 12A is set to 26.6%. The stretch rate of the body fabric including the high tightening portions in the thighs is greater than the stretch rate of the body fabric 2, and it is preferable that the stretch rates of the torso slip-stopping portions 10A and the toe slip-stopping portions 12A are set to 1 / 2 or less of the stretch rate of the body fabric 2.

[0058] In the above-described embodiment, an example was described in which the thigh tightening portions 3A extend above the patella from a position above the greater trochanter when worn, specifically an embodiment in which they extend below the shoe opening 10, starting at a position approximately L10 = 2 cm above the greater trochanter 21, and ending at a position approximately L20 = 3 cm above the top of the patella 22, but the extending position can be set appropriately in accordance with the stretch rate of the main fabric that includes the thigh tightening portions 3A in the thigh region. In this embodiment, there are no particular limitations, but it is more effective if the stretch rate is smaller than that of the main fabric 2, for example.

[0059] However, as shown in FIG. 4, even if the stretch recovery rate of the main fabric including the thigh tightening portion 3A in the thigh region is set to be greater than the stretch recovery rate of the main fabric 2, if the stretch rate of the thigh tightening portion 3A is equal to or greater than the stretch rate of the main fabric 2, then a continuous band-shaped tightening portion may extend over the entire section from the waist slip-preventing portion 10A or a position below the waist slip-preventing portion 10A to the top of the patella.

[0060] If the stretch rate of the body fabric, including the thigh tightening portion 3A in the thigh region, is sufficiently large, the burden on the hip joint can be reduced, making it possible to achieve innerwear that not only provides adequate walking support but also has excellent wearing comfort.

[0061] The above describes examples of embodiments of the innerwear of the present invention, but the present invention is not limited to these descriptions, and the specific configuration, shape, material, etc. of each part can be changed as appropriate within the scope of the effects of the present invention. [Industrial Applicability]

[0062] The innerwear according to the present invention is used in the daily lives of middle-aged and elderly people with reduced muscle strength and joint function as innerwear that can assist in flexion or extension of the hip and knee joints while maintaining balance during walking, thereby reducing fatigue. [Explanation of symbols]

[0063] 1: Innerwear 1A: Torso 1B: Legs 1C: Legs 2: Body fabric 3: Tightening section 3A: Thigh tightening part 3B: Front lower leg tightening part 3C: Rear leg tightening part 3D: Medial sural tightening area 3E: Lateral sural tightening area 3F: Patella tightening part 3G: Knee tightening part 4: Kneecap 5: Gusset fabric 6: Metatarsal fixation part (toe slip prevention part) 10: Opening 10A: Body anti-slip part 12A: Toe slip prevention part

Claims

1. An innerwear comprising a body fabric that exhibits stretchability and a plurality of tightening portions that have a higher stretch recovery rate than the body fabric, and that covers at least the wearer from the waist to the ankles, The tightening portion is A belt-shaped thigh tightening portion is arranged on the left and right front body parts and extends from a position above the greater trochanter to above the patella when worn; a belt-shaped front lower leg tightening portion that extends from below the patella to the ankle when worn; a rear crus tightening portion that includes a band-shaped medial calf tightening portion that covers at least a portion of the medial gastrocnemius muscle and extends to the ankle when worn, and a band-shaped lateral calf tightening portion that covers at least a portion of the lateral gastrocnemius muscle and extends to the ankle; Including, In a worn state, the region corresponding to the kneecap is provided with a circular kneecap having a smaller elongation recovery rate than the tightening portion, and a circular patella tightening portion is provided around the kneecap having a larger elongation recovery rate than the kneecap, The innerwear maintains walking balance and assists the flexion and extension of the hip and knee joints with the tightening portions.

2. 2. The innerwear according to claim 1, wherein the stretch rate of the body fabric, including at least the thigh tightening portions that cover the thighs of the wearer, is greater than the stretch rate of the body fabric.

3. 2. The innerwear according to claim 1, further comprising a knee tightening portion that extends from the outer edge of the patella tightening portion to the popliteal fossa and has a greater stretch recovery rate than the kneecap but a smaller stretch recovery rate than the patella tightening portion.

4. 4. The innerwear according to claim 3, wherein the front crus compressing portion is connected to the knee compressing portion or the patella compressing portion.

5. The innerwear according to any one of claims 1 to 4, characterized in that when worn, the front crus tightening portion extends to the tarsal bones, includes a portion of the metatarsal bones, and is provided with a metatarsal bone fixing portion that wraps around in a band-like manner, and the front crus tightening portion is connected to the metatarsal bone fixing portion.

6. 6. The innerwear according to any one of claims 1 to 5, wherein the body fabric, the thigh tightening portions, the front crus tightening portions, and the rear crus tightening portions are made of weft knitted fabrics.

7. 7. The innerwear according to claim 1, wherein a gusset fabric separate from the body fabric is joined to the crotch of each of the pair of left and right leg portions.

Citation Information

Patent Citations

  • Sock-like clothing and clothing with crotch

    JP2014185418A

  • Clothing

    JP2017186726A

  • compression garments

    JP2019518883A

  • Tights

    WO2013179440A1