JP2018150653A - Calf supporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve the improvement of fixing feeling of the gastrocnemius.SOLUTION: A calf supporter 10 is such that: a cylindrical supporter body 22 includes a calf front surface 24, a calf surface 26, a knee side front surface 28, a knee side rear surface 30, an ankle side front surface 32, and an ankle side rear surface 34; and in the supporter body 22, an elastic modulus LB at 80% elongation to an axial direction of the calf surface 26 is greater than elastic moduli LD, LE at 80% elongation to an axial direction of the knee side front surface 28 and the ankle side rear surface 34. With this, the gastrocnemius is effectively supported so as to improve fixing feeling of the gastrocnemius.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a calf supporter.

Currently, various supporters for calves are known.
For example, as a calf supporter that can support the gastrocnemius muscle from below without inhibiting the movement of the Achilles tendon, suppress excessive shake and distortion of the gastrocnemius muscle, and reduce the wearer's fatigue. A first anchor portion that is knitted around one end of a tubular knitted fabric knitted with a circular knitting and fastens the tubular knitted fabric to the knee side of the wearer's lower leg, and the other end of the tubular knitted fabric is A second anchor portion that is knitted around and fastens the tubular knitted fabric on the ankle side of the wearer's lower leg, and a gastrocnemius muscle support portion, and the gastrocnemius muscle support portion is the back side of the gastrocnemius muscle support portion tubular knitted fabric And connecting one end of the first anchor portion, extending to a portion corresponding to the outer edge of the wearer's inner gastrocnemius, passing through the portion corresponding to the joint portion of the wearer's gastrocnemius and Achilles tendon, and Extends to the portion corresponding to the outer edge of the gastrocnemius, and the other end on the first anchor Linked to, lower leg supporter for supporting the gastrocnemius of the wearer are known (e.g., see Patent Document 1).

  In addition, as a support for a calf with a strong tightening effect mainly intended to recover fatigue of calves, which is not intended as a substitute for taping, it has a tightening structure at the upper and lower ends and a tapered drum cylinder at the lower part. The main body is an insertion knitting structure consisting of knitting nylon and polyurethane yarns, and has an X-shaped reinforcing piece that crimps the calf part of the cylinder main body in the course direction. There is known a supporter for inflatable shins composed of a cut part-attached yarn knitting structure (see, for example, Patent Document 2).

  Furthermore, as a calf supporter that can effectively prevent and reduce swelling and fatigue of the leg while providing a comfortable wearing feeling without applying excessive tightening force to the lower leg, from the outer heel to the lower end of the knee joint The body part that covers the lower leg is provided with a leg support line part that forms a spiral shape of the outer turning from the outer heel to the lower end of the rear side of the knee joint through the rear ankle. Turn the ankle to the inside, from the inside to the outside, on the front side, from the lower end of the tibia across the shin facing 1/4 to 1/2 of the total length of the tibia diagonally upward, and from the middle of the gastrocnemius muscle on the back side Leg wear that reaches the radial head via the upper part is known (see Patent Document 3).

JP 2012-149372 A JP 2002-266125 A JP 2008-266802 A

By the way, as functions required for the calf supporter, in addition to recovery from fatigue and reduction of blood stasis by promoting venous return, an improvement in the fixation to the gastrocnemius muscle can be mentioned. In order for the calf supporter to perform the above functions, it is necessary to arrange and knitting members having different tightening force and expansion / contraction resistance.
The present invention has been made in view of the above facts, and an object of the present invention is to provide a calf supporter excellent in a feeling of fixation with respect to the gastrocnemius muscle. A further object of the present invention is to provide a calf supporter that promotes venous return.

Specific means for solving the above problems are as follows.
<1> A calf front surface portion that is attached to a leg portion including a calf and supports the anterior side surface of the leg rib, a calf surface portion that supports a posterior side surface of the leg rib, and a knee side on the anterior side surface of the leg rib A front side of the knee that supports the knee side of the calf on the posterior side of the rib of the leg, an anterior side of the ankle side that supports the ankle side of the calf on the anterior side of the rib of the leg, and A cylindrical supporter body including an ankle-side rear surface part supporting the ankle side of the calf on the posterior side of the rib of the leg, and the elastic modulus at 80% elongation in the axial direction of the supporter body is LA When the calf surface portion is LB, the knee side front surface portion is LC, the knee side rear surface portion is LD, the ankle side front surface portion is LE, and the ankle side rear surface portion is LF, the following formula (1) Support for calves satisfying formula (5) Tar.
0.7 ≦ (LB / LA) (1)
1 ≦ (LC / LD) (2)
1 ≦ (LE / LF) (3)
1 <(LB / LD) (4)
1 <(LB / LF) (5)

<2> The calf supporter according to <1>, further satisfying at least one of the following formulas (6) and (7).
10 ≦ (LB / LD) ≦ 50 (6)
10 ≦ (LB / LF) ≦ 50 (7)

<3> The calf supporter according to <1> or <2>, wherein an elastic modulus at 80% elongation in the circumferential direction of the supporter body satisfies the following formula (8) when the calf surface portion is HB.
1 <(LB / HB) (8)

<4> The elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA for the calf front part, HB for the calf face part, HC for the knee side front part, and HD for the knee side rear part. The calf supporter according to any one of <1> to <3>, which sometimes satisfies the following formula (9) and formula (10):
1 <(HA / HC) (9)
1 <(HB / HD) (10)

<5> The elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA for the calf front part, HB for the calf face part, HE for the ankle side front part, and HF for the ankle side rear part. The calf supporter according to any one of <1> to <4>, which sometimes satisfies the following formula (11) and the following formula (12).
1 <(HA / HD) (11)
1 <(HB / HC) (12)

<6> The elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA for the calf front part, HB for the calf face part, HE for the ankle side front part, and HF for the ankle side rear face part. The calf supporter according to any one of <1> to <5>, which sometimes satisfies the following formula (13) and the following formula (14).
1 <(HA / HE) (13)
1 <(HB / HF) (14)

<7> The elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA for the calf front part, HB for the calf face part, HE for the ankle side front part, and HF for the ankle side rear face part. The calf supporter according to any one of <1> to <6>, which sometimes satisfies the following formula (15) and the following formula (16).
1 <(HA / HF) (15)
1 <(HB / HE) (16)

<8> Knitted tissue of the calf front surface portion, knitted tissue of the calf surface portion, knitted tissue of the knee side front surface portion, knitted tissue of the knee side rear surface portion, knitted tissue of the ankle side front surface portion, and the rear side of the ankle side The calf supporter according to any one of <1> to <7>, wherein the knitted structure of the surface portion is a knitted structure including a floating knitted structure.

<9> The calf supporter according to any one of <1> to <8>, wherein the cylindrical supporter main body is formed by circular knitting and the parts are continuous.
<10> The calf supporter according to any one of <1> to <9>, wherein the cylindrical supporter body has a seamless structure.
<11> Further, a knee-side mouth rubber portion disposed on the knee side with respect to the cylindrical supporter body, and an ankle-side mouth rubber portion disposed on the ankle side with respect to the tubular supporter body. A calf supporter according to any one of <1> to <10>.

According to the present invention, there is an effect that a calf supporter excellent in a feeling of fixation with respect to the gastrocnemius is provided.
Moreover, according to this invention, in addition to the said effect, it has the effect that the supporter for calves which can accelerate | stimulate venous return is provided.

It is a perspective view which shows schematic structure of the supporter for calves concerning a specific example. It is a side view of the leg which shows the wearing condition of the supporter for calves concerning a specific example.

Hereinafter, this embodiment of the present invention will be described.
In the present specification, a numerical range represented using “to” means a range including numerical values described before and after “to” as a lower limit value and an upper limit value.
In this specification, “the axial direction of the cylindrical supporter main body” refers to the axial direction of the cylindrical shape when the shape of the supporter main body is maintained in a cylindrical shape. In the present specification, the “axial direction of the cylindrical supporter main body” may be simply referred to as “axial direction”. The “axial direction” in the present specification is a direction sometimes referred to as “vertical direction” in the technical field of calf supporters, and can also be referred to as a direction in which a leg is inserted into a cylindrical supporter body.
In the present specification, the “circumferential direction of the cylindrical supporter body” refers to the circumferential direction of the cylindrical body when maintained in the cylindrical shape of the supporter body. In the present specification, the “circumferential direction of the cylindrical supporter body” may be simply referred to as “circumferential direction”. The “circumferential direction” in the present specification is a direction sometimes referred to as “lateral direction” in the technical field of calves supporters.
In the present specification, the front surface of the ribs of the leg is referred to as “front surface”, and the rear side of the ribs (the calf side) is referred to as “rear surface”.

[Supporters for calves]
The calf supporter of the present embodiment is attached to a part including the calf of the leg, and includes a front part of the calf that supports the anterior side of the leg rib (the surface of the shin) and a rear side of the leg rib (the surface of the calf). Supporting calf surface, knee front side supporting the knee side on the anterior side of the leg rib, knee rear side supporting the knee side of the calf on the posterior side of the leg rib, and calf on the anterior side of the leg rib A cylindrical supporter main body including an ankle side front surface portion for supporting the ankle side and an ankle side rear surface portion for supporting the ankle side of the calf on the rear side surface of the rib of the leg is provided.
Further, the calf supporter of the present embodiment has an elastic modulus at 80% elongation in the axial direction of the cylindrical supporter body, the calf front part is LA, the calf face part is LB, the knee side front part is LC, and the knee side The calf supporter satisfying the following formulas (1) to (5) when the rear surface portion is LD, the ankle side front surface portion is LE, and the ankle side rear surface portion is LF.
0.7 ≦ (LB / LA) (1)
1 ≦ (LC / LD) (2)
1 ≦ (LE / LF) (3)
1 <(LB / LD) (4)
1 <(LB / LF) (5)

  The calf supporter of the present embodiment is excellent in a feeling of fixation of the calf to the gastrocnemius muscle by having the above configuration. Further, the calf supporter according to the present embodiment can promote the venous return. In the following description, the fixation feeling of the gastrocnemius is also referred to as the fixation feeling of the calf and the fixation feeling to the leg.

  Hereinafter, the effects described above (the feeling of fixation on the gastrocnemius muscle and the effect of promoting venous return) will be described in more detail.

According to the study by the present inventors, it has been found that in the calf supporter, there is a positive correlation between the elastic modulus and the feeling of fixation of the calf supporter to the leg (gastrocnemius). That is, the higher the elastic modulus of the calf supporter, the higher the pressure applied to the leg (that is, the stronger the clamping force against the calf), and as a result of the wearer's feeling, the calf muscle of the calf It has been found that the feeling of fixing against is improved.
Furthermore, as a result of the study by the present inventors, the axial elastic modulus LB of the calf surface portion is determined as the axial elastic modulus LB of the cylindrical supporter body at 80 elongation in the axial direction (hereinafter also referred to as the axial elastic modulus). It has been found that the feeling of fixation of the calf to the gastrocnemius muscle is effectively improved by setting it to 0.7 times or more of the axial elastic modulus LA of (i.e., satisfying the formula (1)).

On the other hand, there is a negative correlation between the elastic modulus of the calf supporter and the elongation of the calf supporter.
In this regard, in the calf supporter of the present embodiment, the axial elastic modulus LD of the knee-side rear surface portion is equal to the axial elastic modulus LC of the knee-side front portion, or from the axial elastic modulus LC of the knee-side front portion. (1 ≦ (LC / LD) and the axial elastic modulus LF of the knee-side rear surface portion is equal to the axial elastic modulus LE of the ankle-side front portion) or the axial elastic modulus of the ankle-side front portion Smaller than LE (by satisfying 1 ≦ (LE / LF) (that is, satisfying the formula (2) and the formula (3)), the stretch of the knee side rear surface portion and the ankle side rear surface portion is ensured when the leg is bent and stretched. As a result, the ease of bending and extending the legs is improved while securing the gastrocnemius muscles.
More specifically, there is a gastrocnemius that forms a calf on the rear side of the rib of the leg, and therefore, the knee side rear surface portion and the ankle side rear surface portion are required to be stretched during the bending operation of the ankle or the like. Therefore, in the present embodiment, the axial elastic modulus LD of the knee-side rear surface portion and the axial elastic modulus LF of the ankle-side rear surface portion are respectively set to the axial elastic modulus LC of the knee-side front portion and the axis of the ankle-side front portion. The elongation of the knee side rear surface portion and the ankle side rear surface portion is the same as the directional elastic modulus LE or lower than the axial elastic modulus LC of the knee front surface portion and the axial elastic modulus LE of the ankle front surface portion. As a result, leg leg bending / extension ease is improved.

  In this specification, the axial elastic modulus LA of the front surface of the calf is a measurement width in which the center position of the calf front surface part (that is, the center in the circumferential direction and the center in the axial direction) is the measurement center. It means a value measured for a range of 15 mm (ie, circumferential length).

  Axial elastic modulus LB of calf surface portion, axial elastic modulus LC of knee front surface portion, axial elastic modulus LD of knee side rear surface portion, axial elastic modulus LE of ankle side front surface portion, and axial direction of ankle side rear surface portion The same applies to each of the elastic modulus LF.

In the present specification, the “elastic modulus at 80% elongation in the axial direction” is measured by a tensile test under the conditions of a grip width of 15 mm, a grip interval of 15 mm, and a tensile load of 20 N. Here, the direction of the tensile load is the axial direction of the supporter body.
A tensile test for measuring an elastic modulus at 80% elongation in the axial direction (axial elastic modulus) was performed by fixing a part of a calf supporter to a tensile tester with a grip width of 15 mm and a grip interval of 15 mm, It is stretched by pulling at a pulling rate of min, and the elastic modulus (tensile stress) at the time of stretching by 80% is read to obtain a measured value.
In addition, when it is difficult to carry out the tensile test on a part of the calf supporter, a test piece of 30 mm square may be cut out from the calf supporter and may be carried out on the cut test piece. .
The number of tests is 5 times, and the average value is obtained from three measurement values excluding the maximum value and the minimum value from the five measurement values, and this average value is calculated as “elastic modulus at 80% elongation in the axial direction (axial direction). Elastic modulus) ”.
As a tensile test apparatus, a general tensile tester can be used. For example, an autograph “AGS-X 1kN” manufactured by Shimadzu Corporation can be used.

  The ratio (LB / LA) of the axial elastic modulus LB of the calf surface portion to the axial elastic modulus LA of the calf front surface portion in Equation (1) is 0.7 or more as shown in Equation (1). The ratio (LB / LA) of the axial elastic modulus LB of the calf surface portion to the axial elastic modulus LA of the calf front surface portion in the formula (1) is 0.8 or more from the viewpoint of further improving the fixation feeling regarding the gastrocnemius muscle. Is preferably 1, or more, more preferably 1 or more, and particularly preferably 1.1 or more.

In the calf supporter of the present embodiment, it is preferable that the axial elastic modulus LA of the calf front part and the axial elastic modulus LB of the calf face satisfy the following formula (1a).
0.7 ≦ (LB / LA) ≦ 3 (1a)
The left side (0.7 ≦ (LB / LA)) of the formula (1a) is synonymous with the formula (1) described above, and its effect (fixed feeling on the gastrocnemius) and the calf with respect to the axial elastic modulus LA of the calf front part The preferable lower limit value of the ratio (LB / LA) of the axial elastic modulus LB of the surface portion is also the same.
Further, by satisfying the right side of formula (1a) ((LB / LA) ≦ 3), the feeling of fixation with respect to the gastrocnemius muscle is further improved.
The ratio (LB / LA) of the axial elastic modulus LB of the calf surface portion to the axial elastic modulus LA of the calf front surface portion in the formula (1a) is preferably 2 or less, and more preferably 1.5 or less. .

In the calf support of the present embodiment, the axial elastic modulus LC of the knee side front surface portion, the axial elastic modulus LD of the knee side rear surface portion, the axial elastic modulus LE of the ankle side front surface portion, and the axis of the ankle side rear surface portion The directional elastic modulus LF satisfies at least the following formula (2) and formula (3), and at least one of the following formula (2a) and formula (3a) (preferably formula (3a), more preferably formula (2a) ) And the following formula (3a) are preferably satisfied.
1 ≦ (LC / LD) (2)
1 ≦ (LE / LF) (3)
2 ≦ (LC / LD) ≦ 40 (2a)
2 ≦ (LE / LF) ≦ 40 (3a)

  The calf support of the present embodiment satisfies at least one of the left side (2 ≦ (LC / LD)) of formula (2a) and the left side of formula (3a) (2 ≦ (LE / LF)). The ease of bending and stretching operation is further improved.

By satisfying at least one of the right side of formula (2a) ((LC / LD) ≦ 40) and the right side of formula (3a) ((LE / LF) ≦ 40), the calf supporter of the present embodiment satisfies the knee The shift of the side rear surface portion and the ankle side rear surface portion is further suppressed.
The ratio (LC / LD) of the axial elastic modulus LC of the knee front surface portion to the axial elastic modulus LD of the knee rear surface portion in the formula (2a) is preferably 30 or less, and more preferably 20 or less. preferable.
The ratio (LE / LF) of the axial elastic modulus LE of the ankle-side front surface portion to the axial elastic modulus LF of the ankle-side rear surface portion in Formula (3a) is preferably 30 or less, and more preferably 20 or less. preferable.

As a preferred aspect (hereinafter also referred to as “first aspect”) of the calf supporter of the present embodiment, the axial elastic modulus LA of the calf front part, the axial elastic modulus LC of the knee front part, and the ankle front face Each of the axial elastic moduli LE is at least one of the following formula (17) and the following formula (18) (preferably the following formula (18), more preferably both the following formula (17) and the following formula (18). The aspect which satisfy | fills) is mentioned.
1 <(LA / LC) (17)
1 <(LA / LE) (18)

In the first aspect, the axial elastic modulus LA of the calf front part is relatively determined from at least one (preferably both) of the axial elastic modulus LC of the knee front part and the ankle front part LE. It is the aspect which makes it high.
According to the 1st aspect, the fixation feeling with respect to a gastrocnemius is improved more effectively as a wearer's bodily sensation. That is, the first aspect is particularly suitable when importance is attached to the feeling of fixation with respect to the front surface of the leg.

In the calf supporter of the first aspect, when the calf front surface part, calf surface part, knee side front part, and knee side rear surface part are arranged in order from the highest in terms of the axial elastic modulus, either the calf front part or calf face part On the other hand, it is preferable that the other side of the calf front part and calf face part, the knee side front part, and the knee side rear part be in this order.
Further, in the calf supporter according to the first aspect, when the calf front part, calf face part, ankle side front part, and ankle side rear part are arranged in order from the highest, the calf front part and calf face part are measured in the axial direction. It is preferable that the other side of the calf front part and calf face part, the ankle side front face part, and the ankle side rear face part be in this order.

In the first aspect, the axial elastic modulus LA of the calf front part, the axial elastic modulus LC of the knee front part, and the axial elastic modulus LE of the ankle front part are given by the following formulas (17a) and (18a): It is preferable to satisfy at least one of (preferably the following formula (18a), more preferably both the following formula (17a) and the following formula (18a)).
1 <(LA / LC) ≦ 5 (17a)
1 <(LA / LE) ≦ 5 (18a)

  The calf supporter according to the first aspect satisfies at least one of the left side of the formula (17a) (1 <(LA / LC)) and the left side of the formula (18a) (1 <(LA / LE)). A feeling of fixation improves.

In the first aspect, the ratio of the axial elastic modulus LA of the calf front surface portion to the axial elastic modulus of the knee side rear surface portion (LA / LC) is 1.5 or more from the viewpoint of further improving the fixation to the gastrocnemius muscle. Preferably, 2 or more is more preferable.
In the first aspect, the ratio (LA / LE) of the axial elastic modulus of the calf front surface portion to the axial elastic modulus LE of the ankle side front surface portion is 1.5 or more from the viewpoint of further improving the feeling of fixation to the gastrocnemius muscle. Preferably, 2 or more is more preferable.
By satisfying at least one of the right side of formula (17a) ((LA / LC) ≦ 5) and the right side of formula (18a) ((LA / LE) ≦ 5), the calf supporter of the first aspect Excessive tightening (compression) is further suppressed.

As a preferred aspect (hereinafter also referred to as “second aspect”) of the calf supporter of the present embodiment different from the first aspect, the axial elastic modulus LA of the calf front part and the axial direction of the knee side front part In the elastic modulus LC and the axial elastic modulus LE of the front side of the ankle side, at least one of the following formula (17b) and the following formula (18b) (preferably the following formula (18b), more preferably the following formula (17a) and the following formula The aspect which satisfy | fills a formula (18b)) is also mentioned.
0.2 ≦ (LA / LC) ≦ 1 (17b)
0.2 ≦ (LA / LE) ≦ 1 (18b)

In the second aspect, the axial elastic modulus LA of the calf front part is relatively less than at least one (preferably both) of the axial elastic modulus LC of the knee front part and the ankle front part LE. It is an aspect to make.
According to the 2nd aspect, as a wearer's sensation, the leg (gastrocnemius) bend-stretching ease of operation improves more effectively. That is, the second aspect is particularly suitable when importance is attached to the ease of bending and extending the legs (gastrocnemius).

  As a preferred aspect (hereinafter, also referred to as “third aspect”) of the calf supporter of the present embodiment, which is different from the first aspect and the second aspect, the axial elastic modulus LA of the calf front portion, the knee front surface In the axial elastic modulus LC of the portion and the axial elastic modulus LE of the front side of the ankle side, there may be mentioned an aspect satisfying the expression (17) in the first aspect and the expression (18b) in the second aspect.

In the third aspect, the axial elastic modulus LA of the calf front part, the axial elastic modulus LC of the knee front part, and the axial elastic modulus LE of the ankle front part are (LC) <(LA) ≦ (LE) It becomes.
According to the third aspect, the ease of bending and stretching the knee joint is more effectively improved as the wearer's experience. That is, the third aspect is suitable, in the same way as the second aspect, particularly when importance is attached to the ease of bending and extending the legs (gastrocnemius).

In the calf supporter of the present embodiment (including the calf supporter of the first to third aspects, the same applies hereinafter), the axial elastic modulus LC of the knee front surface portion and the axial elastic modulus LD of the knee rear surface portion. It is preferable that the axial elastic modulus LE of the ankle side front surface portion and the axial elastic modulus LF of the ankle side rear surface portion satisfy at least one of the following formula (19) and the following formula (20). This further improves the ease of leg bending and stretching operations.
1 <(LE / LD) (19)
1 <(LC / LF) (20)

  The ratio (LE / LD) of the axial elastic modulus LE of the ankle-side front surface portion to the axial elastic modulus LD of the knee-side rear surface portion in Formula (19) is preferably 40 or less. Further, the ratio (LC / LF) of the axial elastic modulus LC of the knee front surface portion to the axial elastic modulus LF of the ankle side rear surface portion in the equation (20) is preferably 40 or less.

In the calf supporter of the present embodiment, the calf surface portion, the knee side rear surface portion, and the ankle side rear surface portion are the axial elastic modulus LB of the calf surface portion, the axial elastic modulus LD of the knee side rear surface portion, and the ankle side rear surface portion. The axial elastic modulus LF satisfies the expressions (4) and (5). Moreover, it is preferable that axial direction elastic modulus LB, LD, LF satisfy | fills following formula (6) and Formula (7).
1 <(LB / LD) (4)
1 <(LB / LF) (5)
10 ≦ (LB / LD) ≦ 50 (6)
10 ≦ (LB / LF) ≦ 50 (7)

By satisfying at least one of the left side (10 ≦ (LB / LD)) of the formula (6) and the left side (10 ≦ (LB / LF)) of the formula (7), the calf support of the present embodiment satisfies The feeling of fixing against is improved.
By satisfying at least one of the right side of formula (6) ((LB / LD) ≦ 50) and the right side of formula (7) ((LB) / LF) ≦ 50), the calf supporter of the present embodiment satisfies: Blood flow from the calf to the knee and the calf to the ankle is promoted. Thereby, the shift | offset | difference (the shift | offset | difference at the time of wear. The following is the same) of at least one of a knee side rear surface part and an ankle side rear surface part is suppressed more. Moreover, blood flow from the calves to the knee side (back of the knee) can be promoted, and venous return can be promoted.

In the calf supporter of the present embodiment, from the viewpoint of further suppressing the displacement of the knee side rear surface portion, the axial elastic modulus LD of the knee side rear surface portion is preferably 0.001 MPa or more, preferably 0.01 MPa or more. More preferably.
In the calf supporter of the present embodiment, the knee side rear surface portion preferably has an axial elastic modulus LD of 0.1 MPa or less, more preferably 0.08 MPa or less.

In the calf supporter of the present embodiment, the axial elastic modulus LF of the ankle side rear surface portion is preferably 0.001 MPa or more, more preferably 0.01 MPa or more, from the viewpoint of further suppressing displacement of the ankle side rear surface portion. More preferably.
Further, in the calf supporter of the present embodiment, the ankle side rear surface portion preferably has an axial elastic modulus LF of 0.1 MPa or less, and more preferably 0.08 MPa or less.

In addition, in the calf supporter of the present embodiment, from the viewpoint of further suppressing excessive tightening (compression) to the calf and further improving the comfort at the time of wearing, the calf surface part has an axial elastic modulus LB of 1.0 MPa. Or less, more preferably 0.7 MPa or less.
Further, in the calf supporter of the present embodiment, from the viewpoint of further improving the feeling of fixation of the calf, the axial elastic modulus LB of the calf surface part is preferably 0.05 MPa or more, and preferably 0.3 MPa or more. More preferred.

  In the calf supporter of the present embodiment, the axial elastic modulus LC of the knee side front portion is preferably 0.001 MPa or more, more preferably 0.5 MPa or more, from the viewpoint of further suppressing the shift of the knee side front portion. More preferably. Further, in the calf supporter of the present embodiment, the axial elastic modulus LC of the knee front surface portion is preferably 1.9 MPa or less, more preferably 1.2 MPa or less.

  In the calf supporter of the present embodiment, the axial elastic modulus LE of the ankle-side front portion is preferably 0.001 MPa or more, more preferably 0.5 MPa or more, from the viewpoint of further suppressing the deviation of the ankle-side front portion. More preferably. Moreover, in the calf supporter of the present embodiment, the axial elastic modulus LE of the front side of the ankle is preferably 1.9 MPa or less, and more preferably 1.2 MPa or less.

  In the calf supporter of the present embodiment, the front of the calf has an axial elastic modulus LA of 0.8 MPa or less from the viewpoint of further suppressing excessive tightening (compression) on the calf and improving comfort during wearing. It is preferable that it is 0.6 MPa or less. In addition, in the calf supporter of the present embodiment, from the viewpoint of further improving the feeling of fixation of the calf, the axial elastic modulus LA of the calf front part is preferably 0.1 MPa or more, and 0.3 MPa or more. It is more preferable.

On the other hand, the calf supporter of the present embodiment has an elastic modulus at the time of 80% elongation in the circumferential direction of the cylindrical supporter body (hereinafter also referred to as circumferential elastic modulus), HA on the calf front part and HB on the calf face part. The calf supporter satisfies HC on the front side of the knee, HD on the rear side of the knee, and the following formulas (9) and (10).
1 <(HA / HC) (9)
1 <(HB / HD) (10)

  The calf supporter of this embodiment can promote blood flow from the calf side to the knee (back of the knee) by having the above configuration. Accordingly, in the calf supporter of the present embodiment, a compression order to the calf that promotes venous return in the calf of the leg is configured, and venous return is promoted.

  In this specification, the circumferential elastic modulus refers to the elastic modulus at 80% elongation in the circumferential direction of the supporter body. The measuring method of the circumferential elastic modulus is the same as the measuring method of the axial elastic modulus (elastic modulus at 80% elongation in the axial direction) except that the test direction is the circumferential direction. Further, the circumferential elastic modulus HB of the calf surface portion, the circumferential elastic modulus HC of the knee side front surface portion, the circumferential elastic modulus HD of the knee side rear surface portion, the circumferential elastic modulus HE of the ankle side front surface portion, and the ankle side rear surface portion The same applies to each of the circumferential elastic modulus HF.

  When the ratio (HA / HC) of the circumferential elastic modulus HA of the calf front surface to the circumferential elastic modulus HC of the knee front surface in Equation (9) exceeds 1, the front of the calf rather than the compression force of the knee front surface The pressing force of the part increases. Further, when the ratio (HB / HD) of the circumferential elastic modulus HB of the calf surface portion to the circumferential elastic modulus HD of the knee side rear surface portion in Equation (10) exceeds 1, the calf is larger than the compression force of the knee side rear surface portion. The pressing force on the face increases. For this reason, the blood flow from the calf side to the knee side, particularly the venous blood flow (venous return) is promoted.

In the calf supporter of the present embodiment, the ratio (HA / HD) of the circumferential elastic modulus HA of the calf front surface portion to the circumferential elastic modulus HD of the knee-side rear surface portion exceeds 1 (the following equation (11) is satisfied) Is preferred. Further, in the calf supporter of the present embodiment, the ratio (HB / HC) of the circumferential elastic modulus HB of the calf surface to the circumferential elastic modulus HC of the knee front surface exceeds 1 (satisfies equation (12)). It is preferable.
1 <(HA / HD) (11)
1 <(HB / HC) (12)
Thereby, the calf can be compressed to the knee side over the entire circumference, and venous return is further promoted.

  The calf supporter according to the present embodiment satisfies the formulas (9) to (12) between the front side of the calf, the side of the calf, the front side of the knee, and the rear side of the knee, so that the peripheral side of the vein Since pressure can be applied gradually toward the central side, venous return is more effectively promoted.

In the calf supporter of the present embodiment, the circumferential elastic moduli HA, HB, HE, and HF are expressed by the following formulas (13) and (13) between the calf front part, calf face part, ankle side front part, and ankle side rear face part: It is preferable to satisfy at least one of 14), and it is more preferable to satisfy both formula (13) and formula (14). By satisfy | filling Formula (13) and Formula (14), the blood flow from a calf to the ankle side is promoted.
1 <(HA / HE) (13)
1 <(HB / HF) (14)

Further, the calf supporter of the present embodiment has a circumferential elastic modulus between the calf front part, calf face part, ankle front part, and ankle rear part at least one of the following formulas (15) and (16): It is preferable to satisfy | fill, and it is more preferable to satisfy | fill both Formula (15) and Formula (16). By satisfy | filling Formula (15) and Formula (16), the blood flow from a calf to the ankle side is promoted more.
1 <(HA / HF) (15)
1 <(HB / HE) (16)

  The calf supporter according to the present embodiment satisfies the equations (13) to (16) among the calf front surface portion, calf surface surface portion, ankle side front surface portion, and ankle side rear surface portion, thereby facilitating the movement of the ankle joint. The property is further improved.

In the calf supporter of the present embodiment, from the viewpoint of suppressing the displacement of the calf front part, the circumferential elastic modulus HA of the calf front part is preferably 0.01 MPa or more, and preferably 0.1 MPa or more. More preferred.
Further, in the calf supporter of the present embodiment, the circumferential elastic modulus HA of the calf front surface part is preferably 0.7 MPa or less, and more preferably 0.5 MPa or less.

In the calf supporter of the present embodiment, the circumferential elastic modulus HB of the calf surface portion is preferably 0.01 MPa or more, more preferably 0.1 MPa or more, from the viewpoint of improving the fixation of the gastrocnemius muscle (scalpel). Is more preferable.
Further, in the calf supporter of the present embodiment, from the viewpoint of suppressing excessive tightening of the gastrocnemius muscle (calf), the circumferential elastic modulus HB of the calf surface is preferably 0.5 MPa or less, and 0.3 MPa or less. More preferably.

  In the calf supporter of the present embodiment, the circumferential elastic modulus HC of the knee side front part is preferably 0.01 MPa or more, more preferably 0.1 Pa or more, from the viewpoint of further suppressing the displacement of the knee side front part. More preferably. Further, in the calf supporter of the present embodiment, the circumferential elastic modulus HC of the knee side front surface portion is preferably 0.5 MPa or less, more preferably 0.3 MPa or less.

  In the calf supporter of the present embodiment, from the viewpoint of further suppressing the shift of the knee side rear surface portion, the circumferential elastic modulus HD of the knee side rear surface portion is preferably 0.01 MPa or more, preferably 0.1 MPa or more. More preferably. In the calf supporter of the present embodiment, the knee side rear surface portion preferably has a circumferential elastic modulus HD of 0.3 MPa or less, more preferably 0.2 MPa or less.

  In the calf supporter of the present embodiment, from the viewpoint of further suppressing the deviation of the ankle-side front portion, the circumferential elastic modulus HE of the ankle-side front portion is preferably 0.01 MPa or more, and is 0.1 MPa or more. More preferably. Moreover, in the calf supporter of the present embodiment, the circumferential elastic modulus HE of the ankle-side front portion is preferably 0.5 MPa or less, and more preferably 0.3 MPa or less.

  In the calf supporter of the present embodiment, from the viewpoint of further suppressing the deviation of the ankle side rear surface portion, the circumferential elastic modulus HF of the ankle side rear surface portion is preferably 0.01 MPa or more, preferably 0.1 MPa or more. More preferably. In the calf supporter of the present embodiment, the ankle-side rear surface portion preferably has a circumferential elastic modulus HF of 0.3 MPa or less, and more preferably 0.2 MPa or less.

On the other hand, in the calf front part in the present embodiment, the ratio (LA / HA) of the axial elastic modulus LA to the circumferential elastic modulus HA is preferably 0.4 or more, and more preferably 0.5 or more. More preferably, it is more preferably 0.7 or more, still more preferably 1 or more, still more preferably more than 1.
When the ratio of the axial elastic modulus LA to the circumferential elastic modulus HA (HA / LA) of the front surface of the calf is 0.5 or more, the feeling of fixing to the calf is further improved.
The ratio (HA / LA) of the axial elastic modulus LA to the circumferential elastic modulus HA of the front surface of the calf is more preferably 1.2 or more, more preferably 1.5 or more, from the viewpoint of further improving the feeling of fixation to the calf. preferable.

  On the other hand, the ratio of the axial elastic modulus LA to the circumferential elastic modulus HA (HA / LA) of the front surface of the calf is preferably 5.0 or less, and preferably 4.0 or less, from the viewpoint of further improving the fit to the calf. More preferred is 3.0 or less.

In the calf surface portion in the present embodiment, the ratio (LB / HB) of the axial elastic modulus LB to the circumferential elastic modulus HB exceeds 1 (satisfies the following formula (8)).
1 <(LB / HB) (8)

The calf supporter of the present embodiment satisfies the formula (8) and the above formulas (4) and (5) in the calf surface, knee side rear surface, and ankle side rear surface. Since the calf surface portion can support the gastrocnemius between the side rear surface portion and the ankle side rear surface portion, the feeling of fixation of the gastrocnemius muscle (scalpel) is further improved.
The ratio (LB / HB) of the axial elastic modulus LB to the circumferential elastic modulus HB at the calf surface is 1.5 or more (1.5 ≦ (LB / HB)) from the viewpoint of further improving the fixation of the gastrocnemius muscle. Is preferable, and 2.0 or more (2.0 ≦ (LB / HA)) is more preferable.

On the other hand, the ratio (LB / HB) of the axial elastic modulus LB to the circumferential elastic modulus HB at the calf surface is preferably 6.0 or less, more preferably 5.0 or less from the viewpoint of further improving the fit to the calf. preferable.
The knee-side rear surface portion in the present embodiment preferably has a ratio (LD / HD) of the axial elastic modulus LD to the circumferential elastic modulus HD of less than 1. This further improves the ease of leg bending and stretching operations.
The ratio (LD / HD) of the axial elastic modulus LD to the circumferential elastic modulus HD at the knee side rear surface portion is preferably 0.8 or less from the viewpoint of further improving the ease of bending and extending the leg. The following is more preferable, and 0.4 or less is particularly preferable.
Further, the ratio of the axial elastic modulus LD to the circumferential elastic modulus HD (LD / HD) in the knee side rear surface portion is preferably 0.1 or more from the viewpoint of manufacturing aptitude.

In the ankle-side rear surface portion in the present embodiment, the ratio (LF / HF) of the axial elastic modulus LF to the circumferential elastic modulus HF is preferably less than 1 ((LF / HF) <1). This further improves the ease of leg bending and stretching operations.
The ratio (LF / HF) of the axial elastic modulus LF to the circumferential elastic modulus HF at the ankle side rear surface portion is preferably 0.8 or less from the viewpoint of further improving the ease of bending and extending the leg. 0.5 The following is more preferable, and 0.4 or less is particularly preferable.

In the calf supporter of the present embodiment, the knitted tissue on the front surface of the calf, the knitted tissue on the calf surface, the knitted tissue on the front side of the knee, the knitted tissue on the rear side of the knee, the knitted tissue on the front side of the ankle, and the ankle side It is preferable that the knitting structure of the rear surface part is a knitting structure including a floating knitting structure.
When the knitted structure of each part is a knitted structure including a floating knitted structure, the axial elastic modulus of each part can be easily adjusted by changing the density and distribution of the floating yarn between the parts during manufacture of the calf supporter. it can. For this reason, it is easy to manufacture the supporter for calves which satisfy | fills Formula (1)-Formula (5).

  In the calf supporter of the present embodiment, it is preferable that the knee side rear surface part and the ankle side rear surface part both include an uneven tissue region. According to this aspect, it is particularly easy to achieve at least one of the above-described formulas (6) and (7).

Here, the concavo-convex structure region is a region including a concavo-convex structure which is a structure having a concavo-convex shape. Examples of the concavo-convex structure included in the concavo-convex structure region include a knitted fabric structure (hereinafter also referred to as “knitted fabric”), a woven fabric structure (hereinafter also referred to as “woven fabric”), and a resin sheet (eg, a film). Among these, as the uneven structure, it is preferable to use a knitted fabric or a woven fabric, and it is more preferable to use a knitted fabric. Moreover, a single uneven | corrugated structure | tissue may be used for an uneven | corrugated structure area | region, and you may use it combining a some uneven | corrugated structure | tissue.
In addition, as the uneven texture region including the uneven texture, from the viewpoint of reducing the uncomfortable feeling at the time of wearing, improving the air permeability, and improving the operation followability, the uneven knitted region including the uneven knitted fabric, the uneven woven region including the uneven woven fabric, or An uneven texture region including an uneven knitted fabric and an uneven woven fabric is preferable, and an uneven knitted fabric region including an uneven knitted fabric is more preferable.

The uneven knitted fabric region is a region including an uneven knitted fabric that is a knitted structure having an uneven shape. The uneven knitted fabric included in the uneven knitted fabric region may be a single uneven knitted fabric or two or more types of uneven knitted fabric.
As the area of the uneven knitted fabric region, the area of the uneven knitted fabric region in a stretched state at the time of wearing is preferably 4 cm ² or more, and more preferably 6 cm ² or more.
In addition, the circumferential length of the uneven knitted fabric region should be 1/6 or more of the entire circumferential length of the calf supporter part (specifically, the total length across the uneven knitted fabric region). The length is preferably 1/3 or more.
The circumferential length of the uneven knitted fabric region refers to the total circumferential length when the uneven knitted fabric region is divided and arranged in the circumferential direction without being overlapped in the circumferential direction.

A plurality of uneven knitted fabric regions may be arranged in one end side region and / or the other end side region. When arranging a plurality of uneven knitted fabric regions in the one end side region and / or the other end side region, the arrangement is not particularly limited.
The shape of the uneven knitted fabric region and the shape of the boundary line with the adjacent region are not particularly limited. These can be appropriately designed from the viewpoint of design.

The uneven knitted fabric region preferably includes a repeated knitting structure of tack. Tack repetitive knitting means a knitting method in which tuck knitting is repeatedly knitted. When the uneven knitted fabric region includes a repeated knitting structure of tack, it becomes easier to adjust stretchability.
The uneven knitted fabric in the uneven knitted fabric region preferably includes a float knitted structure. The float knitted structure in the uneven knitted fabric is easier to expand and contract than the knitted structures other than the float knitted structure. The reason why the uneven knitted fabric including the float knitted structure is soft is thought to be that the allowance for extension (ie, unevenness) remains in the float knitted structure in the uneven knitted fabric even when the uneven knitted fabric region is stretched during wearing. This stretch gives a soft feel when touching the skin. Moreover, it is preferable to form an uneven knitted fabric by arranging a float knitted structure also from the viewpoint of easy manufacture of the uneven knitted fabric.
The uneven knitted fabric in the uneven knitted fabric region is preferably knitted with elastic yarns, and the uneven knitted fabric is more preferably an uneven knitted fabric including a float knitted structure using elastic yarns. By using the elastic yarn, the uneven knitted fabric can be made softer.
Examples of the elastic yarn include polyurethane, polyolefin-based elastomer, natural rubber, and silicone. Among these, polyurethane, polyolefin elastomer, and natural rubber are preferable from the viewpoint of more excellent elasticity.

  From the viewpoint of excellent manufacturability when the calf supporter is integrally manufactured by circular knitting, it is preferable to arrange a float knitting structure in the axial direction.

Moreover, it is preferable that an uneven | corrugated knitted fabric area | region has an elongate recessed part. Needless to say, the long shape here is the shape of a recess in plan view.
Of the concavo-convex knitted fabric region, the bottom portion of the concave portion has the property of being easily stretched. For this reason, the uneven knitted fabric area | region which has an elongate recessed part has the property of extending easily in the width direction of this recessed part. Therefore, since the uneven knitted fabric region has the elongated concave portion, the entire uneven knitted fabric region is easily stretched, so that the operation followability is further improved.

The uneven knitted fabric region preferably has a plurality of elongated recesses.
The uneven knitted fabric region has a plurality of elongated recesses, and each of the plurality of recesses preferably has a length direction substantially parallel to the circumferential direction of the cylindrical joint supporter portion. In this case, the width direction of the elongated concave portion corresponds to the axial direction of the calf supporter. For this reason, since the uneven knitted fabric region easily extends in the axial direction of the calf supporter, the operation followability is further improved.
The fact that the uneven knitted fabric region has a plurality of elongated recesses having the length direction is advantageous in that it is excellent in manufacturing suitability when the calf supporter is manufactured by circular knitting. More specifically, when producing a calf supporter by circular knitting, the above-mentioned long concave portion (that is, the length direction thereof is the joint supporter) is obtained by knitting one or more circumferential stitches by float knitting. Can be easily produced.

On the other hand, the front surface of the calf has an axial expansion rate (hereinafter, also simply referred to as “20N axial expansion rate”) of 50% when the cylindrical supporter body is extended with a load of 20 N in the axial direction. It is preferably 500%.
If the 20N axial extension rate of the front surface of the calf is 50% or more, the leg bending / stretching ease of operation is further improved. When the 20N axial extension rate of the front surface of the knee is 500% or less, the feeling of fixation of the calves is further improved. Further, the 20N axial extension rate of the calf front surface part is preferably 400% or less, more preferably 300% or less, and particularly preferably 200% or less, from the viewpoint of further improving the fixation feeling of the gastrocnemius muscle.

In this specification, the 20N axial extension rate of the calf front part is the measurement width with the center position of the calf front part (that is, the center in the circumferential direction and the center in the axial direction) as the measurement center. It means a value measured for a range of 15 mm (ie, circumferential length).
The same applies to the 20N axial extension rate of the knee side rear surface part and the 20N axial extension rate of the ankle side support part, which will be described later.

In this specification, “20N axial direction elongation rate” is measured by a tensile test under the conditions of a grip width of 15 mm, a grip interval of 15 mm, and a tensile load of 20 N. Here, the direction of the tensile load is the axial direction of the supporter body.
“20N axial direction elongation rate” refers to a value calculated by the following equation.
20N axial direction elongation rate (%) = (L ₂₀ / L ₀ ) × 100
[In the above equation, L ₀ indicates the initial (ie, non-stretching) gripping interval, specifically 15 mm. L ₂₀ indicates a holding interval in a state where a tensile load of 20 N is applied (that is, during extension). ]

In the tensile test for measuring the 20N axial elongation rate, a part of the calf supporter is fixed to a tensile tester with a grip width of 15 mm and a grip interval of 15 mm, and is performed at a tensile speed of 15 mm / min.
In addition, when it is difficult to carry out the tensile test on a part of the calf supporter, a test piece of 30 mm square may be cut out from the calf supporter and may be carried out on the cut test piece. .
The number of tests is five, and an average value is obtained from three measurement values excluding the maximum value and the minimum value from the five measurement values, and this average value is adopted as the “20N axial direction elongation rate”.
As a tensile test apparatus, a general tensile tester can be used. For example, an autograph “AGS-X 1kN” manufactured by Shimadzu Corporation can be used.

The knee-side rear surface portion preferably has a 20N axial direction elongation rate of 150% to 850%.
When the stretch rate in the 20N-axis direction of the knee side rear surface portion is 150% or more, the ease of bending and extending the knee joint is further improved. When the 20N axial extension rate of the knee side rear surface portion is 850% or less, the shift of the knee side rear surface portion is further suppressed.
The ankle side rear surface part preferably has a 20N axial direction elongation rate of 150% to 850%.
If the 20N axial direction elongation rate of the ankle side rear surface portion is 150% or more, the leg bending and elongating operation ease is further improved.
When the 20N axial extension rate of the ankle side rear surface portion is 850% or less, the shift of the shin side rear surface portion is further suppressed.

The cylindrical support body is preferably manufactured continuously by circular knitting.
Thereby, each part which comprises a cylindrical supporter main body is manufactured separately, and compared with the case where these are sewed together next, without producing the sense of incongruity by the projection part formed by the seam, at the time of wearing of the calf supporter The effect that the fit is further improved is achieved. Furthermore, when each of the above parts is continuously manufactured by circular knitting, there is an effect that it is easy to ensure the overall elongation rate of the cylindrical support body.

Moreover, when paying attention to the structure of a cylindrical supporter main body, it is preferable that a cylindrical supporter main body has a seamless structure from a viewpoint of ensuring the fit at the time of wearing mentioned above, and ensuring the elongation rate. Here, the seamless structure means an integrated structure having neither an axial seam (for example, a seam for forming a tubular shape by stitching) nor a circumferential seam (for example, a seam for sewing parts together). .
The cylindrical support body having a seamless structure can be formed, for example, by continuously manufacturing a cylindrical support body by circular knitting.

The calf supporter according to the present embodiment further includes a knee-side mouth rubber portion disposed on the knee side with respect to the cylindrical supporter body, and an ankle-side mouth disposed on the ankle side with respect to the cylindrical supporter body. And a rubber part. Thereby, the fall and turn-up of the supporter for calves are suppressed more effectively.
When the calf supporter of the present embodiment includes the knee side mouth rubber part and the ankle side mouth rubber part, the knee side mouth rubber part and the ankle side mouth rubber part may be respectively connected to the supporter main body by sewing. Each of them may be continuously manufactured together with the supporter body by circular knitting.

  Further, at least a part of the back surface of the knee-side mouth rubber part (ie, the surface facing the leg; the same shall apply hereinafter) is provided with a resin layer (for example, a silicone rubber layer) from the viewpoint of suppressing slippage of the calf supporter , An acrylic resin layer, an acrylic urethane resin layer, etc.) are preferably provided. The resin layer can be formed by printing, for example. The resin layer may be provided on the back surface of the ankle side rubber part.

Note that the calf supporter may include other members than the above.
As other members, for example, a rod-shaped support member (stay) provided at a position corresponding to the side of the calf (side of the calf) and protecting the calf by appropriately controlling the movement of the calf (gastrocnemius); And a fixing belt for fixing to the leg.
In particular, by providing a fixing belt on the surface of the knee side mouth rubber part (the surface opposite to the surface facing the leg), it is possible to more effectively suppress the fall of the calf supporter. The fixing belt preferably includes a member (for example, a hook-and-loop fastener) that adjusts the tightening force with respect to the leg.

[Specific examples of supporters for calves]
Next, a specific example of the present embodiment will be described with reference to the drawings. However, the present embodiment is not limited to the following specific example.
FIG. 1 shows a schematic configuration of a calf supporter 10 according to a specific example in a perspective view, and FIG. 2 shows a wearing state of the calf supporter 10 in a side view. In FIG. 1, the upper side in the axial direction of the calf supporter 10 is indicated by an arrow UP, and the circumferential direction of the calf supporter 10 is indicated by an arrow R.
In this specification, “front (forward direction)” corresponds to the direction from the calf side to the shin side, and “upward (upward direction)” corresponds to the direction from the ankle side to the knee side. Yes.

As shown in FIG. 2, the calf supporter 10 according to this specific example is mounted on the shin 14 and calf 16 of the human leg 12 in the range from the knee 18 side to the ankle 20 side.
As shown in FIGS. 1 and 2, the calf supporter 10 according to this example includes a cylindrical support body 22. The supporter body 22 supports the front surface of the calf 16 (the surface on the side of the shin 14), the calf surface 24 that supports the surface of the calf 16, the calf surface 26 that supports the surface of the calf 16 and the knee 18 side of the shin 14 (front surface) of the leg 12. A knee-side front surface portion 28; a knee-side rear surface portion 30 that supports the knee 18 side on the calf 16 (rear surface) side of the leg 12; an ankle-side front surface portion 32 that supports the ankle 20 side on the shin 14 (front surface) of the leg 12; And an ankle side rear surface portion 34 that supports the ankle 20 side on the calf 16 (rear surface) side of the leg 12.

Further, the supporter main body 22 has a calf support portion 36 formed of a cylindrical portion composed of a calf front surface portion 24 and a calf surface portion 26, and a knee side support composed of a cylindrical portion composed of the knee side front surface portion 28 and the knee side rear surface portion 30. A portion 38 is formed, and an ankle-side support portion 40 is formed by a cylindrical portion including the ankle-side front surface portion 32 and the ankle-side rear surface portion 34.
The calf supporter 10 has a knee-side mouth rubber part 42 disposed on the knee 18 side with respect to the supporter main body 22 (knee-side support part 38) and a cylindrical supporter main body 22 (ankle-side support part 40). An ankle side rubber band 44 disposed on the ankle 20 side.
In this specific example, the above-described parts are integrated to form a tubular calf supporter 10.

Furthermore, in this specific example, the axial elastic modulus LA, LB of each part of the calf front part 24, calf face part 26, knee side front part 28, knee side rear part 30, ankle side front part 32, and ankle side rear part 34 is shown. , LC, LD, LE, LF and the circumferential elastic modulus HA, HB, HC, HD, HE, HF satisfy the above-mentioned formulas (1) to (16). In addition, the more preferable range of the axial direction elastic modulus of each part and the circumferential direction elastic modulus is as above-mentioned.
In the calf supporter 10, the boundary lines of the respective parts do not necessarily have to be clear in appearance. Even when the boundary line of each part is not clear in appearance, the boundary line of each part can be distinguished by the difference in elastic modulus (axial elastic modulus, circumferential elastic modulus) of each part.

In the calf supporter 10, the knee side mouth rubber part 42, the supporter main body 22, and the ankle side mouth rubber part 44 are continuously manufactured by circular knitting and have a seamless structure. Thereby, it has become especially excellent in the fit at the time of wear.
However, the present embodiment is not limited to this example, and the supporter main body may be manufactured by separately manufacturing each part as a single member and then sewing each part.
Further, the whole or part of the calf supporter 10 including the knee-side mouth rubber part 42, the supporter main body 22, and the ankle-side mouth rubber part 44 may be continuously manufactured by circular knitting. That is, the whole or part of the structure of the calf supporter 10 may be a seamless structure.

Support material for calves 10 is made of polyester, polypropylene, polyurethane, polyolefin, polyolefin elastomer, polyamide, rayon, acrylic, cupra, acetate, promix, aramid, silicone, etc .; cotton, wool, silk, hemp, rayon Natural fiber; natural rubber; polyvinyl chloride; and the like.
Among these, polyester, polyurethane, polyamide, polyolefin, polyolefin elastomer, silicone, or natural rubber is preferable, and polyester, polyurethane, polyamide, polyolefin, or polyolefin elastomer is more preferable from the viewpoint of long-term durability.

  Examples of the spinning of the calf supporter 10 include monofilament; multifilament; SCY (Single Covering Yarn) coated with urethane or rubber; DCY (Double Covering Yarn) coated with urethane or rubber;

The supporter body 22 includes a knitted tissue of the calf front surface 24, a knitted tissue of the calf surface 26, a knitted tissue of the knee front surface 28, a knitted tissue of the knee side rear surface 30, a knitted tissue of the ankle front surface 32, and the ankle side. As described above, the knitting structure of the rear surface portion 34 is preferably a knitting structure including a floating knitting structure.
As the knitting structure of the knee side mouth rubber part 42 and the ankle side mouth rubber part 44, a rubber knitting structure or a non-run knitting structure is preferable.

The surface of the knitted structure of the calf supporter 10 may be impregnated with resin or may be printed.
Further, the calf supporter 10 may include other tissues other than the knitted structure.
Examples of other structures include a structure containing neoprene rubber and a structure containing a neoprene rubber laminate.

  Regarding the material, spinning, and knitting structure of the calf supporter 10, for example, JP 2011-130784 A, JP 2007-9362 A, JP 2010-13765 A, JP 2000-116667 A, Reference may be made to known materials, spinning and knitting structures described in JP-A 2007-54126.

Next, a preferred size of the calf support 10 will be described with reference to FIG.
In addition, the axial direction length in this specification means the axial direction length at the time of non-extension, and the average circumference in this specification means the average circumference at the time of non-extension.

The axial length L1 of the calf support part 36 including the calf front part 24 and the calf face part 26 is preferably 60 mm to 200 mm, and more preferably 80 mm to 180 mm.
The axial length L2 of the knee-side support portion 38 including the knee-side front surface portion 28 and the knee-side rear surface portion 30 is preferably 30 mm to 200 mm, and more preferably 30 mm to 150 mm.
The axial length L3 of the ankle side support portion 40 including the ankle side front surface portion 32 and the ankle side rear surface portion 34 is preferably 30 mm to 200 mm, and more preferably 30 mm to 150 mm.

The axial length L4 of the knee-side mouth rubber part 42 is preferably 10 mm to 100 mm, more preferably 10 mm to 80 mm, and particularly preferably 20 mm to 70 mm.
The axial length L5 of the ankle side mouth rubber portion 44 is preferably 10 mm to 100 mm, more preferably 10 mm to 80 mm, and particularly preferably 20 mm to 70 mm.

The axial length of the calf supporter 10 (whole) is preferably 140 mm to 760 mm, and more preferably 180 mm to 620 mm.
In the present specification, the axial length is a value represented by the following formula.
Axial length = (Maximum axial length + Minimum axial length) / 2

The average circumference of the calf support part 36 is preferably 100 mm to 300 mm, and more preferably 150 mm to 280 mm.
The average circumference of the knee side support part 38 is preferably 100 mm to 400 mm, and more preferably 150 mm to 350 mm.
The average circumference of the ankle side support portion 40 is preferably 100 mm to 350 mm, and more preferably 100 mm to 300 mm.

The average circumference of the knee-side mouth rubber portion 42 is preferably 180 mm to 350 mm, more preferably 180 mm to 320 mm, and particularly preferably 200 mm to 320 mm.
The average circumference of the ankle side mouth rubber portion 44 is preferably 100 mm to 350 mm, and more preferably 120 mm to 300 mm.
Here, the average circumference is a value represented by the following formula.
Average circumference = (maximum circumference + minimum circumference) / 2

  It is preferable that the average circumference of the knee side rubber part 42 and the ankle side rubber part 44 is smaller than that of the knee side rubber part 42. It is preferable that the average circumference is gradually shortened (decreased) from the calf 16 side to the ankle 20.

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.
A supporter X having the same configuration as that of the calf supporter 10 described above was produced.

The supporter X was manufactured by continuously knitting the knee side mouth rubber part, the cylindrical supporter main body, and the ankle side mouth rubber part by circular knitting.
The cylindrical supporter body has a knitted structure including a floating knitted structure. At this time, the density and distribution of the floating yarn among the parts constituting the cylindrical support body (the front surface of the calf, the calf surface, the knee front surface, the knee rear surface, the ankle front surface, and the ankle rear surface) Was changed so that the axial elastic modulus of each part satisfied the expressions (1) to (16), (17), and (18).

In addition, the knitting structures of the knee side mouth rubber part and the ankle side mouth rubber part were both non-run knitting structures.
The material of the supporter X is nylon or polyurethane.

The size of the supporter X when it is not extended is as follows.
・ Sheath support part: Axial length 130mm, average circumference 220mm
・ Knee side support part: Axial length 50mm, average circumference 208mm
・ Ankle shin side support part: Axial length 45mm, average circumference 195mm
-Knee side rubber part ... Axial length 30mm, average circumference 280mm
・ Ankle side mouth rubber part ・ ・ ・ Axial length 20mm, average circumference 240mm

For each part of the supporter X, the elastic modulus at 80% elongation in the axial direction (axial elastic modulus), the elastic modulus at 80% elongation in the circumferential direction (circumferential elastic modulus), 20N axial elongation, and 20N circumference Directional elongation was measured.
The methods for measuring the 80% axial elastic modulus, 80% circumferential elastic modulus, and 20N axial elongation are as described above.
The measuring method of the 20N circumferential direction elongation rate is the same as the measuring method of the 20N axial direction elongation rate except that the measuring direction is the circumferential direction.

The results are shown in Table 1 below.
In Table 1, the elastic modulus at 80% elongation in the axial column indicates the elastic modulus at 80% elongation in the axial direction (axial elastic modulus), and the elastic modulus at 80% elongation in the circumferential column indicates the circumferential direction. The elastic modulus at 80% elongation (circumferential elastic modulus) is shown.
The 20N elongation rate in the axial direction column indicates the elastic modulus at 20N elongation in the axial direction, and the 20N elongation rate in the circumferential direction column indicates the elastic modulus at 20N elongation in the circumferential direction.

  The column below the measured value of the elastic modulus of each part is A for the measured value for the front surface of the calf, B for the measured value for the calf surface, C for the measured value for the front side of the knee, and D for the measured value for the rear side of the knee. The measured value of the front side of the ankle side is E, and the measured value of the rear side of the ankle side is F, and the ratio between the measured values is shown.

As shown in Table 1, the supporter X, which is a specific example of the calf supporter of the present invention, satisfied the equations (1) to (16). As a result, the supporter X is expected to be excellent in the sense of fixing the calf muscles of the calf and the ease of bending and extending the legs.
Further, it can be seen that the supporter X satisfies the formula (17), the formula (18), the formula (19) to the formula (20), the formula (1a), the formula (17a), and the formula (18a). Thereby, blood circulation is promoted, and in particular, venous return is expected to be promoted.

  Therefore, the supporter X is particularly excellent in the feeling of fixation with respect to the gastrocnemius muscle and the ease of bending and extending the leg, and further, it is expected to be excellent in comfort (specifically, improved fit, displacement suppression, and compression suppression). . In addition to these, the supporter X is expected to promote blood circulation, particularly venous return, and is expected to have excellent congestion reduction and fatigue recovery by promoting venous return.

Next, the supporter X was actually worn by a total of five test subjects, four adult men and one adult woman, for two days, and each subject was interviewed regarding the wearing feeling.
As a result, from any subject, the supporter X is particularly excellent in the feeling of fixation with respect to the gastrocnemius muscle (scalpel) and the ease of bending and extending the legs, and moreover comfort (specifically, improved fit, suppression of displacement, and The impression that it was excellent in suppression of pressure) and was excellent in the reduction of blood stasis and fatigue recovery. Moreover, since there is no distinction between the left and right legs, there is no mistake in wearing (the wrong wearing on the left and right), and the impression that it is easy to wear (easy to wear) was obtained.

10 Supporters for calves 22 Supporters main body 24 Front surfaces of calves 26 Front surfaces of calves 28 Knee-side front surfaces 30 Knee-side rear surfaces 32 Ankle-side front surfaces 34 Ankle-side rear surfaces 42 Knee-side mouth rubber portions 44 Ankle-side mouth rubber portions

Claims (11)

A calf front surface portion that is attached to a portion of the leg including the calf and supports the anterior side of the rib of the leg;
A calf surface supporting the posterior side of the rib of the leg, a front side of the knee supporting the knee side of the anterior side of the rib of the leg, and a posterior side of the knee supporting the knee side of the calf on the posterior side of the rib of the leg A tubular support body including an ankle-side front portion supporting the ankle side of the calf on the front side of the rib of the leg, and an ankle-side rear surface supporting the ankle side of the calf on the rear side of the rib of the leg; Prepared,
The elastic modulus at 80% elongation in the axial direction of the supporter body is LA for the calf front part, LB for the calf face part, LC for the knee side front part, LD for the knee side rear part, and the ankle side front part. A calf supporter satisfying the following formulas (1) to (5), where LE is LE and the ankle side rear surface portion is LF.
0.7 ≦ (LB / LA) (1)
1 ≦ (LC / LD) (2)
1 ≦ (LE / LF) (3)
1 <(LB / LD) (4)
1 <(LB / LF) (5) Furthermore, the calf supporter of Claim 1 which satisfy | fills at least one of following formula (6) and Formula (7).
10 ≦ (LB / LD) ≦ 50 (6)
10 ≦ (LB / LF) ≦ 50 (7) The calf supporter according to claim 1 or 2, wherein an elastic modulus at 80% elongation in the circumferential direction of the supporter body satisfies the following formula (8) when the calf surface portion is HB.
1 <(LB / HB) (8) When the elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA for the calf front surface, HB for the calf surface, HC for the knee front surface, and HD for the knee rear surface, The calf supporter according to any one of claims 1 to 3, wherein the following formula (9) and formula (10) are satisfied.
1 <(HA / HC) (9)
1 <(HB / HD) (10) When the elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA, the calf front part is HB, the calf face part is HB, the ankle side front part is HE, and the ankle side rear part is HF, The calf supporter according to any one of claims 1 to 4, wherein the following formula (11) and the following formula (12) are satisfied.
1 <(HA / HD) (11)
1 <(HB / HC) (12) When the elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA, the calf front part is HB, the calf face part is HB, the ankle side front part is HE, and the ankle side rear part is HF, The calf supporter according to any one of claims 1 to 5, wherein the following formula (13) and the following formula (14) are satisfied.
1 <(HA / HE) (13)
1 <(HB / HF) (14) When the elastic modulus at 80% elongation in the circumferential direction of the supporter body is HA, the calf front part is HB, the calf face part is HB, the ankle side front part is HE, and the ankle side rear part is HF, The calf supporter according to any one of claims 1 to 6, wherein the following formula (15) and the following formula (16) are satisfied.
1 <(HA / HF) (15)
1 <(HB / HE) (16)   The knitted tissue of the calf front surface part, the knitted tissue of the calf surface part, the knitted tissue of the knee side front part, the knitted tissue of the knee side rear part, the knitted structure of the ankle side front part, and the knitting of the ankle side rear part The calf supporter according to any one of claims 1 to 7, wherein each of the tissues is a knitted structure including a floating knitted structure.   The calf supporter according to any one of claims 1 to 8, wherein the cylindrical supporter main body is continuously manufactured by circular knitting.   The calf supporter according to any one of claims 1 to 9, wherein the cylindrical supporter body has a seamless structure. Furthermore,
A knee-side mouth rubber portion disposed on the knee side with respect to the cylindrical supporter body;
An ankle side mouth rubber portion disposed on the ankle side with respect to the cylindrical supporter main body,
The calf supporter according to any one of claims 1 to 10, further comprising: