JP2012245117A - Knee joint supporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a knee joint supporter which improves stability of a knee joint, thereby reduces fatigue of a wearer and also makes it possible to reduce a load on a patellar tendon.SOLUTION: The knee joint supporter 10 includes: a support part 4 which is knitted almost in the shape of the letter U and supports the kneecap of the wearer, and a kneecap corresponding part 5 which corresponds to the kneecap of the wearer. The kneecap corresponding part 5 is composed of a first mesh part 5a formed of mesh knitted cloth, a first longitudinal check pattern part 5b formed of knitted cloth in the shape of a longitudinal check pattern, and a first transverse check pattern part 5c formed of knitted cloth in the shape of a transverse check pattern. The stretch resistance of a first anchor part 2 and a second anchor part 3 in the circumferential direction of tubular knitted cloth is larger than the stretch resistance of a base fabric part 1 in the circumferential direction of the tubular knitted cloth, while the stretch resistance of the base fabric part 1 in the length direction L of the tubular knitted cloth is smaller than that of the support part 4 in the length direction L of the tubular knitted cloth and larger than that of the first mesh part 5a in the length direction of the tubular knitted cloth.

Description

  The present invention relates to a knee joint supporter capable of supporting a wearer's daily movement, and in particular, taping that improves the knee joint stability, reduces wearer fatigue, and reduces the load on the patella tendon. The present invention relates to a knee joint supporter having a function.

  Reduction in knee joint muscle strength (particularly quadriceps muscles) makes it difficult to perform daily operations such as walking, standing up from a chair, sitting down, or going up and down stairs.

  In addition, in a state where muscle strength has decreased or relative muscle strength has been insufficient (when muscles are overloaded due to the balance between operation and strength), support is provided by passive elements (tendons, ligaments, etc.) and support by passive elements. Repeating the above causes wear of articular cartilage and inflammation of tendons or ligaments. In particular, the pain in the patella (around the knee plate) may be patella tendonitis, which requires patella support.

  On the other hand, the conventional supporter has a cylindrical main body made of a stretchable material, and a support portion which is provided integrally therewith and is made of a lower stretchable material than the main body. The support part connects the anchor part to the human body, the engaging part engaging with the knee, and the anchor part and the engaging part to connect the displacement of the knee to the trunk side with respect to the limb axis. The connection part to suppress is comprised (for example, refer patent document 1).

  Further, the conventional compression supporter includes a cylindrical main body made of an elastic material, and a main body made of an elastic material, which can be worn on the knee, and has a low elasticity region having a lower elasticity than the main body. As a supporter that supports the knee joint and surrounding muscle tendons due to the difference in stretchability between the low stretch region and the body, the lower stretch region, as a low stretch region, surrounds the lower part of the patella to compress the patella ligament. The character type has a front suspension region provided on the front surface of the main body, and the low stretch region fixes a low stretch material made of resin to the main body (see, for example, Patent Document 2).

JP 2008-106404 A JP 2010-13765 A

  The conventional supporter is a supporter that can effectively prevent and protect the knee failure due to excessive internal rotation and valgus, and linearly connects the engaging portion and the anchor portion along the outer side surface of the leg. Although a connection part is provided, the connection part is not provided in the inner surface of the leg. For this reason, the conventional supporter lacks the balance of the pressing force due to the connecting portions applied to the outer side surface and the inner side surface of the leg, does not improve the stability of the knee joint, and reduces the wearer's fatigue. is not.

  In particular, in the conventional supporter, since the support part (anchor part, engaging part, connecting part) made of a material having a lower elasticity than the main body is lined and attached to the main body, There is a problem that a process of stitching the support portion is necessary and the manufacturing process is complicated.

In addition, the conventional supporter does not give a strong pressing force to the wearer's knee from the inner surface to the outer surface, so the external force is reduced when the external force is applied to the knee from the outer surface side of the leg. There is a problem that a repulsive force from the inner side surface of the knee to the outer side surface is not obtained, which is not sufficient to suppress damage to the medial collateral ligament.

  Further, in the conventional compression supporter, the front suspension region has a curved portion that surrounds the lower portion of the patella, so that the patella is lifted and has a suitable action on the quadriceps muscle. However, the conventional compression supporter does not have a low expansion / contraction region (anchor) for circling the wearer's thigh and locking the front suspension region (side compression region), so that the action of lifting the patella is not sufficient There are challenges.

  In particular, the conventional compression supporter requires a step of fixing the low-stretch material after forming the cylindrical main body in order to fix the low-stretch material made of resin to the main body and configure each stretchable region. There is a problem that the manufacturing process is complicated.

  The present invention has been made to solve the above-described problems, and can improve the knee joint stability, reduce wearer fatigue, and reduce the load on the patella tendon. The purpose is to provide a joint supporter.

  The knee joint supporter according to the present invention comprises a cylindrical knitted fabric knitted with a circular knitting, and is a knee joint supporter that assists the knee joint in close contact with the wearer's body surface. A first anchor portion for fastening the tubular knitted fabric to the wearer's thigh, and knitting around the other end of the tubular knitted fabric. A second anchor portion for fastening the knives, a support portion connected to the first anchor portion and knitted into a substantially U shape surrounding a portion corresponding to the patella of the wearer, and supporting the patella of the wearer A patella corresponding portion knitted on the front side of the tubular knitted fabric and corresponding to the wearer's patella, wherein the patella corresponding portion is knitted by the mesh knitted fabric, and the tubular knitted fabric A vertical lattice that is arranged in the longitudinal direction and divides the first mesh portion into a plurality of regions A first vertical lattice portion knitted by the knitted fabric, and a first lattice knitted by a horizontal lattice-like knitted fabric that is provided in the circumferential direction of the tubular knitted fabric and divides the first mesh portion into a plurality of regions. The elastic resistance of the first anchor part and the second anchor part in the circumferential direction of the tubular knitted fabric is larger than the elastic resistance of the base fabric portion in the circumferential direction of the tubular knitted fabric, The stretch resistance of the support portion in the length direction of the tubular knitted fabric is larger than the stretch resistance of the base fabric portion in the length direction of the tubular knitted fabric, and the stretch resistance of the first mesh portion in the length direction of the tubular knitted fabric Is smaller than the expansion resistance of the base fabric portion in the length direction of the tubular knitted fabric.

  In the knee joint supporter according to the present invention, the support portion sandwiches the wearer's knee, and the patella-corresponding portion fits the curved surface of the wearer's kneecap so as to wrap the wearer's kneecap, Stability can be ensured without the wearer's knees moving more than necessary from side to side.

(A) is a front view which shows schematic structure of the knee-joint supporter which concerns on 1st Embodiment, (b) is a rear view of the knee-joint supporter shown to Fig.1 (a), (c) is FIG. It is the left view and right view of the knee joint supporter shown to (a), (d) is a top view of the knee joint supporter shown to Fig.1 (a), (e) is shown to Fig.1 (a). It is a bottom view of a knee joint supporter. (A) is the perspective view seen from the left front which shows the wearing condition of the knee joint supporter shown in FIG. 1, (b) is the left view which shows the wearing condition of the knee joint supporter shown in FIG. ) Is a perspective view seen from the left rear showing the wearing state of the knee joint supporter shown in FIG. 1. (A) is explanatory drawing for demonstrating the knitted fabric of the patella corresponding | compatible part shown to Fig.1 (a), (b) is description for demonstrating the effect by the patella corresponding | compatible part shown to Fig.1 (a). It is a figure, (c) is another explanatory drawing for demonstrating the effect by the patella corresponding | compatible part shown to Fig.1 (a). (A) is a front view which shows an example of the popliteal contact part shown in FIG.1 (b), (b) is a front view which shows the other example of the popliteal contact part shown in FIG.1 (b). FIG. 6C is a front view showing still another example of the popliteal contact portion shown in FIG.

(First embodiment of the present invention)
1, 2, and 3, the knee joint supporter 10 includes a cylindrical knitted fabric that is knitted with a circular knitting by a sock knitting machine (for example, a knitting model (256 needles) manufactured by Lonati). It is a supporter that closely adheres to the wearer's body surface and assists the wearer's knee joint.

  The knee joint supporter 10 is a base fabric portion that is a stretchable knitted fabric that is formed by knitting a plain knitting, a rib knitting, a tuck knitting, a floating knitting, or a pile knitting using a front yarn, a back yarn and a rubber yarn as knitting yarns. By applying different knitting to 1, desired functionality such as a taping function is provided. The base fabric portion 1 according to the present embodiment is a knitted fabric (hereinafter referred to as a tack knitted fabric) knitted by tack knitting.

  The tuck knitted fabric is a knitted fabric that does not make a single stitch when knitting a fabric, but creates a stitch together when the next course is knitted. In the present embodiment, the number of times of tucking is set to one time (1 × 1 tuck knitted fabric) in consideration of the balance with the stitches, but is not limited to this number of times.

  The knee joint supporter 10 is knitted around one end (upper end 10a) of the tubular knitted fabric, and the first anchor portion 2 for fastening the knee joint supporter 10 to the wearer's thigh, and the tubular knitted fabric. And the second anchor part 3 that is knitted around the other end (lower end 10b) and fastens the knee joint supporter 10 to the lower leg of the wearer.

In the first anchor portion 2 and the second anchor portion 3, the expansion / contraction resistance in the circumferential direction H of the knee joint supporter 10 (cylindrical knitted fabric) is the expansion / contraction of the base fabric portion 1 in the circumferential direction H of the knee joint supporter 10. It is organized larger than resistance. That is, the tension in the case where the material is not stretched is given tension as F, the tension of the base fabric portion 1 in the circumferential direction H of the knee joint supporter 10 is F _H1 , and the knee joint supporter 10 in the circumferential direction. When the tension of the first anchor part 2 at _H is F _H2 and the tension of the second anchor part 3 in the circumferential direction H of the knee joint supporter 10 is F _H3 , the first anchor part 2 and the second anchor part 2 Compared with the base fabric portion 1, the anchor portion 3 has a magnitude relationship of F _H2 ≈F _H3 > F _H1 so that it has a strong tightening force in the circumferential direction H of the knee joint supporter 10.

  Specifically, a knitted fabric in which the first anchor portion 2 is knitted with a 1 × 1 Kanoko knitted fabric (hereinafter referred to as a 1 × 1 Kanoko knitted fabric) is connected to the knee joint supporter 10 at the upper end 10 a of the knee joint supporter 10. A double 1 × 1 sword knitted fabric (hereinafter referred to as a double stag knitted fabric) that is sewn with another thread (for example, woolly nylon thread) at the boundary between the base fabric part 1 and the support part 4 described later. The expansion and contraction resistance in the circumferential direction H of the knee joint supporter 10 can be increased with respect to the base fabric portion 1. In addition, the second anchor part 3 is folded at the lower end 10b of the knee joint supporter 10 by folding a 1 × 1 deer knitted fabric on the inner side of the knee joint supporter 10 at the boundary between the base fabric part 1 and a support part 4 described later. Expansion and contraction in the circumferential direction H of the knee joint supporter 10 with respect to the base fabric portion 1 by forming a double 1 × 1 Kanoko knitted fabric (double Kanoko knitted fabric) sewn with yarn (for example, woolly nylon yarn). The resistance can be increased.

  Kanoko knitted fabric means that flat knitting and tack (a structure that allows multiple loops to escape in subsequent courses without escaping stitches in a certain course) alternately or in several courses in the course direction and the wale direction. The knitted fabric that appears in For this reason, in the first anchor part 2 and the second anchor part 3, by using a flat knitting and a tack together, it is possible to make a bulge and a watermark on the surface of the knitted fabric, and a mesh like a sword. A pattern appears.

  As described above, the first anchor portion 2 is knitted around the wearer's thigh, and the expansion / contraction resistance in the circumferential direction H of the knee joint supporter 10 is the resistance of the base fabric portion 1 in the circumferential direction H of the knee joint supporter 10. By being larger than the expansion and contraction resistance, the knee joint supporter 10 can be fixed to the wearer's thigh, and the upper end 10a of the knee joint supporter 10 can be prevented from sliding down when the knee joint is bent. Further, the first anchor portion 2 is connected to a support portion 4 which will be described later, and also functions as an anchor of the support portion 4.

  The second anchor portion 3 is knitted around the wearer's lower leg, and the stretch resistance in the circumferential direction H of the knee joint supporter 10 is the stretch resistance of the base fabric portion 1 in the circumferential direction H of the knee joint supporter 10. By being larger, the knee joint supporter 10 can be fixed to the wearer's lower leg, and the lower end 10b of the knee joint supporter 10 when the knee joint is bent can be suppressed.

  If the tightening force of the first anchor part 2 and the second anchor part 3 on the wearer's thigh and lower leg is too strong, blood flow in the thigh and lower leg is inhibited and the wearer feels uncomfortable. Let In particular, this discomfort is more prominent in the thigh than in the lower thigh.

For this reason, the knee joint supporter 10 according to the present embodiment expands the area of the first anchor part 2 that contacts the wearer's body surface with respect to the second anchor part 3, and the first anchor part 2 The wearer disperses the pressure applied to the body surface and adjusts the degree in part of the first anchor part 2 (for example, the tightening force is reduced by about 10% with respect to the second anchor part 3). To alleviate discomfort. That is, the knee joint supporter 10 according to the present embodiment preferably has a magnitude relationship of F _H3 > F _H2 > F _H1 so as to have an appropriate tightening force in the circumferential direction H of the knee joint supporter 10.

  The support portion 4 is connected to the first anchor portion 2 and is knitted into a substantially U shape surrounding a portion corresponding to the wearer's patella (a patella corresponding portion 5 described later), and supports the wearer's patella. In addition, as for the support part 4, if the inner side 4a in a substantially U shape is a substantially U shape, the outer side 4b outside a substantially U shape does not need to be a substantially U shape, for example, in FIG. As shown, a substantially U-shaped outer side 4b in which a substantially U-shaped curved portion is changed to a bent portion may be used.

  In particular, the support part 4 is connected to the second anchor part 3 and extends between the first anchor part 2 and the second anchor part 3 corresponding to the wearer's inner collateral ligament and outer collateral ligament. Exists. That is, the support portion 4 is locked by the first anchor portion 2 on the wearer's thigh side, and is locked by the second anchor portion 3 on the wearer's lower leg side.

  In addition, when not connecting the support part 4 to the 2nd anchor part 3, the base fabric part 1 with elasticity will exist between the support part 4 and the 2nd anchor part 3, and it wears There is a possibility that the position of the support portion 4 is displaced with respect to the patella of the person. For this reason, the support part 4 can be worn stably by being connected to the second anchor part 3.

The support 4 is preferably formed so that the expansion resistance in the length direction L of the support 4 is larger than the expansion resistance in the width direction of the support 4. It is difficult to knit a knitted fabric with a difference between them with a circular knitting. Therefore, in this embodiment, the expansion / contraction resistance in the length direction L of the knee joint supporter 10 is the expansion / contraction in the circumferential direction H of the knee joint supporter 10 so as to approximate the knitted fabric having a difference from the expansion / contraction resistance. The support part 4 is formed which is larger than the resistance.

Further, the support portion 4 is knitted so that the stretch resistance in the length direction L of the knee joint supporter 10 is larger than the stretch resistance of the base fabric portion 1 in the length direction L of the knee joint supporter 10. That is, the tension of the base fabric section 1 in the length direction L of the knee joint supporter 10 and F _L1, the tension of the support portion 4 in the length direction L of the knee joint supporter 10 when the F _L4, the support portion 4 Compared with the base fabric portion 1, there is a magnitude relationship of F _L4 > F _L1 that has a strong tightening force in the length direction L of the knee joint supporter 10.

  Specifically, by making the support portion 4 a knitted fabric knitted by 2 × 1 Kanoko knitting (hereinafter referred to as 2 × 1 Kanoko knitted fabric), the base fabric portion 1 of the 1 × 1 tack knitted fabric is used. Thus, the expansion and contraction resistance in the length direction L of the knee joint supporter 10 can be increased.

  In this manner, the support portion 4 is connected to the first anchor portion 2 and is knitted into a substantially U shape surrounding the portion corresponding to the wearer's patella, and the stretch resistance in the length direction L of the knee joint supporter 10 However, since it is larger than the expansion and contraction resistance of the base fabric portion 1 in the length direction L of the knee joint supporter 10, the following effects are obtained.

  The support part 4 supports the wearer's patella from the lower leg side to the thigh side, and also supports the inner side collateral ligament, thereby enabling smooth movement of the quadriceps muscles and suppressing the lateral movement of the knee. can do. That is, the support part 4 functions as a splint that supports the wearer's patella from the lower leg side in a substantially U shape, thereby integrating the movement of the quadriceps muscles and suppressing left and right deflection of the knee. Can be fulfilled.

  Further, the special function knitting (2 × 1 Kanoko knitted fabric) in the support portion 4 is connected to the double Kanoko knitted fabric in the first anchor portion 2 and the second anchor portion 3, and the support portion 4 for the wearer's patella. Therefore, the support portion 4 can be fixed at an appropriate position.

  Furthermore, the support part 4 received external force to the knee from the outer surface side of the knee joint supporter 10 by applying a strong pressing force from the inner surface to the outer surface to the knee of the wearer of the knee joint supporter 10. In this case, a repulsive force from the inner surface to the outer surface that relieves the external force can be generated, the knee does not enter inside due to the external force, and damage to the inner collateral ligament can be suppressed.

  Moreover, the support part 4 balances with the pressing force applied to the inner surface by the support part 4 by supporting the outer surface of the wearer's thigh and knee of the knee joint supporter 10, and the wearer's stable standing state Can be maintained. In particular, by holding the patella corresponding portion 5 described later by the support portion 4, the knee of the wearer of the knee joint supporter 10 can be ensured in stability without shaking more than necessary.

The patella-corresponding portion 5 is a portion that is knitted on the front side of the knee joint supporter 10 and corresponds to the wearer's patella.
The patella-corresponding portion 5 is knitted such that the stretch resistance in the length direction L of the knee joint supporter 10 is smaller than the stretch resistance of the base fabric portion 1 in the length direction L of the knee joint supporter 10. That is, the tension of the patella corresponding section 5 in the length direction L of the knee joint supporter 10 when the F _L5, patella corresponding section 5 as compared with the base fabric portion 1, the knee joint supporter 10 in the longitudinal direction L It has a magnitude relationship of F _L1 > F _L5 that has a weak tightening force.

  Specifically, as the patella-corresponding portion 5, a knitted fabric knitted with a mesh knitting which is a knitted structure with good air permeability (hereinafter referred to as a mesh knitted fabric) is used as a main knitted fabric. The stretch resistance of the patella corresponding portion 5 in the length direction L of the knee joint supporter 10 can be reduced with respect to the base fabric portion 1.

  The mesh knitted fabric is a knitted fabric that does not make a temporary stitch when knitting a fabric, but creates a stitch together when the next course is knitted and stretches well by knitting in a mesh form.

  Thus, the patella corresponding portion 5 corresponds to the wearer's patella, and the expansion / contraction resistance in the length direction L of the knee joint supporter 10 is the expansion / contraction of the base fabric portion 1 in the length direction L of the knee joint supporter 10. By being smaller than the resistance, the force accompanying the expansion and contraction of the wearer's skin in the flexion / extension movement and the rotation movement of the knee joint can be absorbed by the high expansion / contraction function.

  In addition, the patella corresponding | compatible part 5 which concerns on this embodiment is equipped with the 1st mesh part 5a knitted by the mesh knitted fabric, and the 1st mesh part 5a by adding to the length direction L of the knee joint supporter 10 by several. A first vertical lattice portion 5b knitted by a vertical lattice-like knitted fabric that is divided into regions, and a horizontal lattice that is provided in the circumferential direction H of the knee joint supporter 10 and divides the first mesh portion 5a into a plurality of regions. And a first horizontal lattice portion 5c knitted by a knitted fabric.

  Then, the first vertical lattice portion 5b is knitted by 1 × 1 rib knitting (hereinafter referred to as a rib knitted fabric), and the first horizontal lattice portion 5c is knitted by 1 × 1 tack knitting. By using the ground (tack knitted fabric), the knee joint supporter 10 in the length direction L and the circumferential direction H is compared with the case of the patella corresponding portion 5 made only of the mesh knitted fabric (first mesh portion 5a). The expansion / contraction resistance of the patella corresponding portion 5 can be changed.

  In particular, as shown in FIG. 3A, the patella corresponding portion 5 according to the present embodiment has a distance (H1, H2, H3) between adjacent vertical lattices in the first vertical lattice portion 5b. The distance between the adjacent horizontal lattices in the first horizontal lattice portion 5 c (L 1, L 2, L 3) is separated from the center O of the patella corresponding portion 5. As it becomes narrower (L1> L2> L3).

  With this knitted fabric, the patella-corresponding portion 5 has the largest elongation rate in the central portion with respect to the length direction L and the circumferential direction H of the knee joint supporter 10, and the elongation rate decreases from the central portion toward the peripheral portion. It will follow the curved surface of the wearer's kneecap. That is, as shown in FIGS. 3B and 3C, the patella-corresponding portion 5 can be securely gripped so as to wrap the wearer's kneecap when the knee joint is bent. Misalignment in any direction can be prevented, and the effect of the support part 4 described above can be improved.

  The rib knitted fabric is a stitch in which front wales and back wales are alternately arranged in the vertical direction, and in this embodiment, a 1 × 1 array of front and back knives arranged for each wal. Knitted fabric.

  The popliteal abutment portion 6 is a portion that is knitted at a position facing the patella corresponding portion 5 on the back side of the knee joint supporter 10 and is in contact with the wearer's popliteal portion.

The popliteal contact portion 6 is knitted such that the stretch resistance in the length direction L of the knee joint supporter 10 is smaller than the stretch resistance of the base fabric portion 1 in the length direction L of the knee joint supporter 10. That is, the tension of the knee窩当contact portion 6 in the length direction L of the knee joint supporter 10 when the F _L6, knee窩当contact portion 6 is compared with the base fabric section 1, the length of the knee joint supporter 10 It has a magnitude relationship of F _L1 > F _L6 that has a weak tightening force in the vertical direction L.

  Specifically, the popliteal abutment portion 6 uses the mesh knitted fabric as a main knitted fabric, whereby the popliteal fossa in the length direction L of the knee joint supporter 10 with respect to the base fabric portion 1 of the tack knitted fabric. The expansion / contraction resistance of the contact part 6 can be reduced.

  Thus, the popliteal abutment portion 6 is a portion that abuts the wearer's popliteal fossa, and the stretch resistance in the length direction L of the knee joint supporter 10 is the base fabric in the length direction L of the knee joint supporter 10. By being smaller than the expansion / contraction resistance of the part 1, it is possible to prevent the knee joint supporter 10 that is in close contact with the body surface of the wearer from being lifted from the body surface. Further, the popliteal contact portion 6 has a good air permeability by using a mesh knitted fabric as a main knitted fabric, and has the effect of smooth bending and stretching on the wearer's knee back.

  The popliteal contact portion 6 according to the present embodiment includes a second mesh portion 6a knitted by a mesh knitted fabric and a second mesh portion 6a provided in the longitudinal direction L of the knee joint supporter 10. A second vertical lattice portion 6b knitted by a vertical lattice-shaped knitted fabric divided into a plurality of regions and a second mesh portion 6a provided in the circumferential direction H of the knee joint supporter 10 are divided into a plurality of regions. And a second horizontal lattice portion 6c knitted by a horizontal lattice-shaped knitted fabric.

  The second vertical lattice portion 6b is a knitted fabric (rib knitted fabric) knitted by 1 × 1 rib knitting, and the second horizontal lattice portion 6c is knitted by a 1 × 1 tack knitted fabric (tack knitting). As compared with the case of the popliteal contact portion 6 made of only the mesh knitted fabric (second mesh portion 6a), the popliteal surface in the longitudinal direction L and the circumferential direction H of the knee joint supporter 10 The expansion / contraction resistance of the contact part 6 can be changed.

  In particular, as shown in FIG. 1B, the popliteal contact portion 6 according to this embodiment has the same interval between adjacent vertical lattices in the second vertical lattice portion 6b, and the second horizontal lattice portion 6c. The intervals between adjacent horizontal lattices in are equally knitted.

  By this knitted fabric, the popliteal contact portion 6 suppresses the generation of wrinkles on the bent portion of the knee joint supporter 10 when the knee joint is bent, and the generation of pain due to the skin of the wearer being pinched by the wrinkles. Can be prevented.

  The lattice-shaped knitted fabric of the popliteal contact portion 6 is, as shown in FIG. 4 (a), a second horizontal lattice portion 6c that constitutes a horizontal lattice provided in the circumferential direction H of the knee joint supporter 10. All the intervals (L ′) between adjacent horizontal lattices in the second horizontal lattice portion 6c may be equal.

  Further, as shown in FIG. 4B, the lattice-shaped knitted fabric of the popliteal abutment portion 6 is a second horizontal lattice portion 6c that constitutes a horizontal lattice provided in the circumferential direction H of the knee joint supporter 10. The distance (L′ 1, L′ 2, L′ 3) between adjacent horizontal lattices in the second horizontal lattice portion 6c becomes narrower as the distance from the center O ′ of the popliteal contact portion 6 decreases. (L′ 1> L′ 2> L′ 3).

  In this case, the popliteal contact portion 6 has the largest elongation rate in the central portion with respect to the length direction L of the knee joint supporter 10, and the elongation rate decreases from the central portion toward the upper end portion and the lower end portion. Thus, it follows the curved surface of the knee sole in the length direction of the wearer's leg, and fits to the wearer's knee sole when the knee joint is bent.

Further, as shown in FIG. 4C, the lattice-shaped knitted fabric of the popliteal contact portion 6 has an interval (H′1, H′2, between adjacent vertical lattices in the second vertical lattice portion 6b. H′3) becomes narrower as the distance from the center O ′ of the popliteal contact portion 6 becomes smaller (H′1>H′2> H′3), and the spacing between adjacent lateral lattices in the second lateral lattice portion 6c. (L′ 1, L′ 2, L′ 3) may become narrower as the distance from the center O ′ of the popliteal contact portion 6 increases (L′ 1> L′ 2> L′ 3).

  In this case, the popliteal contact portion 6 has the largest elongation rate in the central portion with respect to the length direction L and the circumferential direction H of the knee joint supporter 10, and the elongation rate increases from the central portion toward the peripheral portion. It will be smaller and will follow the curved surface of the wearer's popliteal and will fit into the wearer's popliteal when the knee joint is bent.

  In the knee joint supporter 10 according to the present embodiment, the stretch resistance of the support portion 4 in the length direction L of the knee joint supporter 10 is in the length direction L of the knee joint supporter 10 due to the knitted fabric of each part described above. It is larger than the expansion resistance of the second anchor part 3. In addition, the expansion resistance of the second anchor portion 3 in the length direction L of the knee joint supporter 10 is larger than the expansion resistance of the first anchor portion 2 in the length direction L of the knee joint supporter 10. Further, the stretch resistance of the first anchor portion 2 in the length direction L of the knee joint supporter 10 is greater than the stretch resistance of the base fabric portion 1 in the length direction L of the knee joint supporter 10.

Therefore, the knee joint supporter 10 according to the present embodiment satisfies the magnitude relationship represented by the following expression (1) in the tension F in the length direction L of the knee joint supporter 10. In the following equation (1), _FL2 is the tension of the first anchor portion 2 in the length direction L of the knee joint supporter 10, and _FL3 is the second anchor in the length direction L of the knee joint supporter 10. This is the tension of part 3.

(Equation 1)
F _L4 > F _L3 > F _L2 > F _L1 > F _L5 ≈F _L6 (1)
In the present embodiment, the ground knitting yarn used for the tuck knitting, the knitting knitting, the mesh knitting, and the rib knitting is a woolen nylon yarn having a thickness of 70 denier, and a surface yarn composed of two knitting yarns, Covering yarn (DCY), which is a 30 denier wooly nylon yarn, a back yarn consisting of two knitting yarns, a polyurethane denier yarn of 260 denier thickness and two 40 denier nylon winding yarns. : Double covered yarn), but not limited to this material.

  For example, as the front yarn, cotton, hair (cashmere, lamb, angora, etc.), natural fibers such as silk or hemp, chemical fibers such as acrylic, or materials with sweat-absorbing, quick-drying or body temperature adjustment functions, etc. It is preferable to select according to the cost of the supporter 10 or the needs of the wearer. Further, as the back yarn, it is preferable to select an ester, FTY (filament twisted yarn), or an antibacterial, deodorizing or deodorizing material according to the cost of the knee joint supporter 10 or the needs of the wearer.

DESCRIPTION OF SYMBOLS 1 Base fabric part 2 1st anchor part 3 2nd anchor part 4 Support part 4a Inner side 4b Outer side 5 Patella corresponding | compatible part 5a 1st mesh part 5b 1st vertical lattice part 5c 1st horizontal lattice part 6 Popliteal contact portion 6a Second mesh portion 6b Second vertical lattice portion 6c Second horizontal lattice portion 10 Knee joint supporter 10a Upper end 10b Lower end

Claims (4)

In the knee joint supporter, which consists of a cylindrical knitted fabric knitted with a circular knitting and assists the knee joint in close contact with the body surface of the wearer,
A first anchor portion that is knitted around one end of the tubular knitted fabric, and fastens the tubular knitted fabric to the wearer's thigh;
A second anchor portion that is knitted around the other end of the tubular knitted fabric and fastens the tubular knitted fabric to the lower leg of the wearer;
A support portion connected to the first anchor portion and knitted into a substantially U shape surrounding a portion corresponding to the patella of the wearer, and supporting the patella of the wearer;
A patella corresponding portion that is knitted on the front side of the tubular knitted fabric and corresponds to the patella of the wearer;
With
The patella-corresponding portion has a first mesh portion knitted by a mesh knitted fabric, and a vertical lattice shape that is provided side by side in the length direction of the tubular knitted fabric and divides the first mesh portion into a plurality of regions. A first vertical lattice portion knitted by a knitted fabric and a first knitted fabric knitted by a horizontal lattice-like knitted fabric that is provided along the circumferential direction of the tubular knitted fabric and divides the first mesh portion into a plurality of regions. 1 horizontal lattice part,
The stretch resistance of the first anchor portion and the second anchor portion in the circumferential direction of the tubular knitted fabric is greater than the stretch resistance of the base fabric portion in the circumferential direction of the tubular knitted fabric,
The stretch resistance of the support portion in the length direction of the tubular knitted fabric is larger than the stretch resistance of the base fabric portion in the length direction of the tubular knitted fabric,
The knee joint supporter characterized in that the stretch resistance of the first mesh portion in the length direction of the tubular knitted fabric is smaller than the stretch resistance of the base fabric portion in the length direction of the tubular knitted fabric. The knee joint supporter according to claim 1,
As the first vertical lattice portion is separated from the center of the patella corresponding portion, an interval between adjacent vertical lattices is reduced,
The knee joint supporter characterized in that an interval between adjacent lateral lattices becomes narrower as the first lateral lattice portion is separated from the center of the patella corresponding portion. In the knee joint supporter according to claim 1 or 2,
Knitted on the back side of the tubular knitted fabric, comprising a popliteal contact portion that contacts the popliteal of the wearer,
The popliteal contact portion is provided with a second mesh portion knitted by a mesh knitted fabric, and a vertical lattice that is provided along the length direction of the cylindrical knitted fabric and divides the second mesh portion into a plurality of regions. Knitted by a second vertical lattice portion knitted by a knitted fabric and a horizontal lattice-shaped knitted fabric that is provided side by side in the circumferential direction of the tubular knitted fabric and divides the second mesh portion into a plurality of regions. And a second horizontal lattice portion
The knee joint supporter characterized in that the stretch resistance of the second mesh portion in the length direction of the tubular knitted fabric is smaller than the stretch resistance of the base fabric portion in the length direction of the tubular knitted fabric. In the knee joint supporter according to claim 3,
As the second vertical lattice portion is separated from the center of the popliteal contact portion, an interval between adjacent vertical lattices is narrowed,
A knee joint supporter characterized in that as the second lateral lattice portion is separated from the center of the popliteal contact portion, the interval between adjacent lateral lattices becomes narrower.

Images