JP7471556B2 - Healthy socks - Google Patents

Description

Applicable under Article 30, Paragraph 2 of the Patent Act. On sale from July 1, 2019 at ALOHA GENKI LLC, 501 Haione St. 20L, Honolulu, HI 96825.

The present invention relates to health-promoting socks that provide proper support for the feet while promoting good blood circulation and improving the health of the feet, including correction of the feet.

Various types of socks have been known in the past, including so-called five-toed socks that have toe pouches into which each toe is inserted and covered separately. For example, Patent Document 1 discloses a sock with toe pouches knitted seamlessly into a cylindrical shape by a flat knitting machine. This sock is known in which at least the first toe pouch into which the big toe is inserted or the second toe pouch into which the index finger is inserted has a portion knitted with a knitting structure that has a large stretch rate in the length direction of the toe, and the portion of the knitting structure that has a large stretch rate in the length direction of the toe is formed with garter stitch or links stitch, and is formed in a band-like shape around the entire circumference near the crotch of the toe pouch.

In the case of the sock of Patent Document 1, at least the first toe pocket into which the big toe is inserted or the second toe pocket into which the index finger is inserted has a portion knitted with a knitting structure that has a large rate of stretch in the length direction of the toes, so that the toe pocket has good stretchability in the length direction of the toes, and the toes can always fit well when worn, even if there are individual differences in the lengths of the first and second toes.

On the other hand, it is known that the condition of the toes and the entire foot greatly affects the activation of lymphatic flow, and a method has been proposed to maintain health by correcting the toes and the entire foot with socks to activate lymphatic and blood flow (Non-Patent Document 1). Conventional socks such as those in Patent Document 1 above can improve the comfort of wearing the toes, but there was no perspective or knowledge that would contribute to health promotion. In response to this, the present inventor has spent many years researching methods to improve blood flow, including lymphatic flow, while correcting the toes and the entire foot, and has developed and provided five-toed socks for health promotion that are suitable for this purpose (Non-Patent Document 2).

The above-mentioned five-toed health socks, which have been provided in the past, are formed in a generally cylindrical shape with a heel to ensure that the toes and heel are firmly positioned without slipping, and the entire sock is based on normal knitting using cotton yarn and/or synthetic fibers such as circular knitting, while the knitting at the position corresponding to the metatarsal bones is made by combining elastic yarn, so that the socks are tightened with the appropriate pressure to correct and support the arch from the toes to the heel.

Furthermore, in recent years, various improved five-toed socks have been developed based on the knowledge of the present inventors and the teachings from the five-toed socks for health promotion that they have developed. For example, the five-toed socks in Patent Document 2 are circularly knitted using a combination of elastic yarn and cotton yarn and/or synthetic fiber, and a specific structural example is proposed in which the elastic yarn is knitted in a stretched state to apply a predetermined amount of pressure or more in the direction of stretching the PIP joints (the joints between the middle and proximal phalanges) of the second to fifth toes, thereby making it easier to stretch the toes.

However, in the case of the five-toed socks in Patent Document 2, the elastic effect was merely changed by stretching the elastic yarn in the toe area in front of the metatarsal bone (tip from the proximal phalanx), which was knitted in the usual way, such as circular knitting, using a combination of conventional elastic yarn and cotton yarn and/or chemical fiber. It is true that there is an improvement in that the elastic force can be easily adjusted in a simple manufacturing process compared to the conventional toe area, which was knitted in the usual way, such as circular knitting, using cotton yarn and/or chemical fiber, without the elastic yarn. However, this simply follows the idea in Non-Patent Documents 1 and 2, which is to tightly tighten the area near the metatarsal bone and loosely tighten and release the toe area, and is not an improved technology based on an advanced idea that adds new knowledge about the toes and the entire foot.

JP 2008-63699 A JP 2018-35448 A

"The Healthy Method of Keeping Your Toes Straight (KAWADE Yume Shinsho (Author: Matsufuji Fumio et al.))" Publication date: 2008/12/23 "CS socks and foot health - Stretching your toes will change your life! (Five Comfort (Author Fumio Matsufuji et al.))" Publication date 2011/1/1

The present invention was created in light of the above situation, and aims to provide a specific example of the configuration of five-toed socks for health promotion that promote the gradual development of the toes while providing an overall balance of support and correction (pressure) to each bone from the toes to the heel.

In particular, the present invention provides five-fingered socks for health promotion that can be applied to so-called short socks that reach the ankles, which have been difficult to provide with the five-fingered socks for health promotion described in the past (Non-Patent Document 2, etc.) and Patent Document 2.

In order to achieve the above object, the present invention has been created.
A health promotion sock having toe pockets corresponding to each of the toes, a main body connected to all of the bases of each toe pocket, and a heel pocket corresponding to the heel,
Each of the finger pockets has a generally cylindrical shape with a closed tip side and an open base side, and covers at least the distal phalanges and the middle phalanges.
The main body is generally tubular from the tip side to the ankle side, has holes that connect to the openings at the base side of each toe pocket so as to connect to the base side of each toe pocket at its tip edge, and has a tip portion that covers at least the position of the proximal phalanx and is made of tuck knitted cotton yarn and/or synthetic fiber, and a central portion that is connected to the tip portion and covers at least the position of the metatarsal bones and is made of tuck knitted combination of elastic yarn and cotton yarn and/or synthetic fiber.

In the health-promoting socks of the present invention, the entire part of the so-called five-toed socks, except for the toes, is made of tuck knitting with cotton yarn and/or chemical fibers as the base knitting. Tuck knitting, which will be described in detail later, is a knitting method in which ordinary stitches (stockinette stitches) such as flat knitting or circular knitting are knitted in an alternating manner by providing a section in which two threads are passed through one stitch. This tuck knitting has the advantage that it is durable and has greater lateral stretch than ordinary knitting, increasing breathability, but it can have disadvantages in that the fabric requires a large amount of yarn, which is costly, and that it has little stretch in the vertical (lengthwise) direction.

Until now, five-toed health-promoting socks have had the advantage of using tuck knitting, as it tightly supports the foot (especially at the metatarsal bones), but on the other hand, tuck knitting does not ensure vertical elasticity of the PIP joint and the toes beyond it. Also, with tuck knitting, there is the problem that the vertical elasticity is small, making it difficult to put on.

In contrast, in the health-promoting socks of the present invention, the center of the metatarsal bones is tuck-knitted with elastic yarn woven into cotton yarn and/or synthetic fiber. In addition to the characteristic of tuck knitting, which allows it to stretch horizontally but has little stretch in the vertical direction, elastic yarn (so-called rubber yarn) is woven into the horizontal direction to reduce stretchability, providing more support for the metatarsals than conventional flat knitting or other ordinary knitting (stockinette stitch: described below) with elastic yarn woven in (details described below).

In addition, these health-promoting socks are tuck-knitted with no elastic yarn at the tip just before the toes, which covers at least the position of the proximal phalangeal bone (which may also overlap the position of the PIP (Proximal InterPhalangeal joint) (second joint)). This makes them less stretchable and stiffer in the vertical direction compared to the horizontal direction, ensuring freedom of movement for the toes while applying pressure in the direction of extension up to the toe pocket. This provides a corrective effect against toe deformities while also reducing the difficulty of movement when wearing the socks.

It is also preferable that each toe pouch from the tip toward the toe side is formed by flat knitting cotton yarn and/or synthetic fiber.

In the present health-promoting socks, the toe pockets are made of normal knitting (stockinette stitch) without any elastic yarn, and preferably flat knitting. This makes the toe pockets beyond the tip that covers the position of the proximal phalanges more elastic and less pressure is applied, ensuring ease of wear and freedom of movement of the toes, while at the same time gradually reducing the tightening force (support force) from the center roughly located at the metatarsal bone to the tip roughly located at the proximal phalanges, and to the toe pockets from the PIP joint to the toe. In particular, the metatarsal bones, which need the most support for correcting the foot, are tuck-knitted with cotton yarn and/or synthetic fiber and elastic yarn to provide sufficient pressure in both the vertical and horizontal directions, while the area near the proximal phalanx, where vertical extension of the toes and a certain degree of freedom in the horizontal direction are desired, is tuck-knitted without elastic yarn to provide the center of vertical pressure, and then ordinary knitting (stockinette stitch), especially flat knitting, is used to ensure the extension of the toe pockets, providing vertical and horizontal freedom, which is advantageous in that it can be adjusted to suit the specific parts of the foot compared to conventional products that are divided into two stages of knitting.

The main body portion has a rear tubular portion that is connected to the central portion, extends to the ankle side, and covers from the metatarsal or cuneiform bone to at least a portion of the tibia, and a heel pouch portion that protrudes from the rear tubular portion to the heel side and covers at least a portion of the calcaneus,
It is preferable that the rear tubular portion and the heel pocket portion are formed by tuck knitting.

In this preferred example, as described above, the central part is tuck knit with elastic yarn incorporated, the tip part is tuck knit with the elastic yarn removed, the toe pocket is made of ordinary stockinette knit (especially flat knit), and the rest of the main body and heel part are tuck knitted. This makes it easy to position the central part, tip part, and toe pocket at each part of the metatarsal bone, proximal phalange, PIP joint, etc., based on the heel and toe tip in a five-toed sock that is tubular and has a heel part.

The rear edge of the rear tubular part of the main body can be ribbed with a combination of elastic yarn and cotton yarn and/or synthetic fiber around the end position on the tibia side, and tuck knit with cotton yarn and/or synthetic fiber around the other tibia.

The health promotion sock is a normal sock shape that reaches the upper or middle part of the tibia, and the tibia side is ribbed (described later) with elastic yarn and cotton yarn and/or chemical fiber, and the rest is tuck knit without elastic yarn. When made with conventional stockinette knit such as ordinary flat knit, in order to prevent health promotion socks that require firm support and positioning at each part from slipping down, it is not enough to simply rib knit the ends with elastic yarn and cotton yarn and/or chemical fiber as is common in socks, and a separate part combining cotton yarn and/or chemical fiber and elastic yarn is required below the tibia (near the ankle). However, the health promotion sock of the present invention uses tuck knitting as a whole, so it is firmly positioned and the rib knit with elastic yarn near the ends prevents it from slipping down.

Furthermore, the rear edge of the rear tubular part of the main body can also cover the area around the ankle.

As mentioned above, in conventional products that use normal flat knitting, it is necessary to insert elastic yarn at the ankle position other than at the ends to prevent the socks from slipping down, and because elastic yarn is inserted in two places, it is difficult to provide so-called short socks, which shorten the space around the tibia (length).However, with these health-promoting socks, it is sufficient to use rib knitting with elastic yarn only at the ends, making it possible to provide so-called short socks.

1 is a schematic diagram showing a conventional health promotion sock. FIG. 1 is a schematic diagram showing a normal knitting pattern. 1A is a schematic side view of a conventional health promotion sock, and FIG. 1B is a schematic side view of a health promotion sock according to a first embodiment of the present invention. 1 is a schematic diagram showing a health promotion sock according to a first embodiment of the present invention. FIG. 2 is a schematic diagram showing tuck knitting. 1 is a schematic diagram showing a health promotion sock according to a second embodiment of the present invention.

Below, we will explain conventional health-promoting socks, and then explain the embodiment of the health-promoting socks of the present invention with reference to the drawings. Note that in the reference numbers of the components shown in this specification and the drawings, components with the same last digit onwards should be understood to generally indicate the same type of components.

<Example of conventional health promotion socks>
Fig. 1 shows a conventional five-toed health sock for the left foot. The health sock 100 of the embodiment shown in Fig. 1 is formed of a cylindrical main body portion (other than the toe pouches 100a) that is open at the roughly upper end (the upper end of Fig. 1) and toe pouches 100a corresponding to each of the five toes.

This health-promoting sock 100 is generally composed of, from the bottom up, the toe pocket 100a, a tip section 100i with a toe pocket at its tip and reaching the vicinity of the tip of the metatarsal bone, a central section 100b connected to the upper end of the tip section 100i and located over the entire metatarsal bone, a tarsal section 100c connected to the upper end of the central section 100b and located approximately from the middle cuneiform bone to the vicinity of the talus, a shin section 100f connected to the upper end of the tarsal section 100c and located approximately from the lower to the middle upper part of the tibia, and a first slip-down prevention section 100g connected to the upper end of the shin section 100f and reaching the upper end, each of which is knitted in a different way. The shin section 100f also has a second slip-down prevention section 100h below the middle position of the shin section 100f. This second slip prevention part 100h is connected to the upper end of the base part 100c and heel part 100d, sandwiching the ankle part 100e.

Regarding the various parts 100a to 100i that make up the conventional type of health promotion socks, the toe pouch 100a is closed at the tip (lower end in FIG. 1) and opens upwards on the inside, and the corresponding toes are inserted into and cover each toe. Specifically, the first toe (big toe) is inserted into and covered by (1) in the toe pouch 100a, the second toe into (2) in the toe pouch 100a, the third toe into (3) in the toe pouch 100a, the fourth toe into (4) in the toe pouch 100a, and the fifth toe into (5) in the toe pouch 100a.

The finger pockets 100a are connected to the main body of the health promotion sock 100 so as to cover each of the five fingers as a single unit, and the tip portion 100i is formed using the same knitting method from the finger pockets 100a to the center portion 100b (described below). The tip portion 100i is knitted using a flat knitting method, which is a general-purpose knit knitting method (stockinette knitting) that is relatively durable as a knitting method for socks, and is formed using cotton yarn and/or synthetic fibers.

Here, we will refer to general-purpose knitting (flat knitting, circular knitting, etc.) with cotton yarn and/or chemical fiber as a way to knit socks. General knitting is a face fabric made by connecting loops called loops while making stitches from a single thread. As shown in Figure 2, loops are made by moving horizontally with one cotton yarn and/or chemical fiber 1a, and for each loop of the cotton yarn and/or chemical fiber 1a, a knitting needle (not shown) holding the cotton yarn and/or chemical fiber b one row lower passes between each loop of the cotton yarn and/or chemical fiber 1a to connect each loop of the new cotton yarn and/or chemical fiber 1b, and similarly, each loop of the cotton yarn and/or chemical fiber 1b connects each loop of the cotton yarn and/or chemical fiber 1c one row lower, and each loop of the cotton yarn and/or chemical fiber 1c connects each loop of the cotton yarn and/or chemical fiber 1d one row lower. This process is repeated to create the socks.

In this specification, the knitting method in which each loop is connected to the loop one row below is referred to as "normal knitting." This type of knitting has the advantage of being stretchable in both the vertical and horizontal directions. In addition, in the knitting of Figure 2, elastic yarn (stretch yarn) may be combined as a reinforcing yarn so that pressure is applied to return the material to its original shape even after it is stretched while still ensuring stretchability. Furthermore, in general, socks are often knitted (stockinette stitch) as shown in Figure 2 using a surface yarn that is cotton yarn and/or chemical fiber and a chemical fiber such as polyurethane or FTY.

Returning to FIG. 1, the upper end of the tip portion 100i is connected to the central portion 100b. This central portion 100b applies a certain amount of pressure around the metatarsal bones to correct the arch of the metatarsal bones. This central portion 100b is made of the above-mentioned knitting method using cotton yarn and/or synthetic fibers, and is combined with elastic yarn to increase the support force for the metatarsal bones (the corrective force for the arch).

The upper end of the central portion 100b is connected to the base portion 100c, which covers the area near the talus. The base portion 100c is made of knitting that does not contain elastic yarn, just like the tip portion 100i. The upper end of the base portion 100c is connected to the ankle portion 100e, which covers the area near the lower end of the tibia and is made of knitting that does not contain elastic yarn.

The tip 100i, central 100d, base 100c, ankle 100e, and shin 100f are roughly one integral cylinder, and are connected to the lower end of the ankle 100e. The heel 100d protrudes from the bottom side of the ankle 100e, and positions the calcaneus and inserts and fixes the heel. The heel 100d is made of knitted material that does not contain elastic yarn, and the heel 100d and the toe pouch 100a position the foot forward and backward.

As shown in Fig. 3(a), which is a side view of the ankle part 100e when worn, a knitted shin part 100f that does not contain elastic yarn and covers the middle and upper positions of the tibia is continuously connected to the upper end of the ankle part 100e. A first slip-down prevention part 100g that extends to the upper edge of the health promotion sock 100 is continuously connected to the upper end of the shin part 100f. The first slip-down prevention part 100g is formed of a rib knit that is highly elastic in the lateral direction and is knitted in a way that alternates between front and back knitting so that the health promotion sock 100 does not slip down around the shin or calf. In addition, the shin part 100f has a second slip-down prevention part 100h below the first slip-down prevention part 100g and below the middle position of the shin part 100f. The shin section 100f is made of normal knitting that does not contain elastic yarn, making it highly elastic. The first slip-down prevention section 100g at the top edge of the health promotion sock 100 is not enough to prevent the sock from slipping down, so the second slip-down prevention section 100h, which is made of knitting that combines elastic yarn and is located below, sufficiently prevents the sock from slipping down.

<Example 1 of health-promoting socks according to the present invention>
Fig. 4 shows a first embodiment of the present invention, a five-toed health sock 10 for the left foot. The health sock 10 of the embodiment of Fig. 4 is formed of a tubular main body (other than the toe pouches 10a) that is open at the top end (the top end of Fig. 4) in a manner similar to the conventional example of Fig. 1, and toe pouches 10a corresponding to each of the five toes.

The health promotion sock 10 is generally composed of, from the bottom up, the toe pocket 10a, a tip portion 10j that extends from the top of the toe pocket to the vicinity of the tip of the metatarsal bone, a central portion 10b that is connected to the upper end of the tip portion 10j and is located over the entire metatarsal bone, a base portion 10c that is connected to the upper end of the central portion 10b and is located approximately from the middle cuneiform bone to the vicinity of the talus, an ankle portion 10e that is connected to the upper end of the base portion 10c and is located approximately below the tibia near the ankle, a shin portion 10f that is connected to the upper end of the ankle portion 10e and is located approximately from the lower to the middle upper part of the tibia, and a first slip-down prevention portion 10g that is connected to the upper end of the shin portion 10f and reaches the upper end, each of which is knitted in a different way. Unlike the conventional health promotion sock 10 in FIG. 1, the health promotion sock 10 does not have a second slip-down prevention portion below the middle position of the shin portion 10f.

As for each of the parts 10a to 10j that make up this health promotion sock 10, like the conventional health promotion sock 10 in FIG. 1, the toe pouch 10a is closed at the tip (the lower end in FIG. 4) and opens upwards inside, and each corresponding toe is inserted and covered. The first toe (big toe) is inserted and covered in (1) of the toe pouch 10a, the second toe in (2) of the toe pouch 10a, the third toe in (3) of the toe pouch 10a, the fourth toe in (4) of the toe pouch 10a, and the fifth toe in (5) of the toe pouch 10a.

The finger pockets 10a extend above the proximal phalanges, and the upper ends of the finger pockets 10a are continuously connected to the main body of the health promotion sock 10, covering the proximal phalanges of all five fingers. The knitting method of the finger pockets 10a changes from the top, and the part that covers the proximal phalanges of the main body of the health promotion sock 10 is formed in the same knitting method up to the central part 10b, which will be described later. This part is referred to as the tip part 10j in this specification.

The knitting method from the tip (bottom end) of the finger pouch 10a to the tip 10j is the same as that of the health promotion sock 100 in FIG. 1, and uses ordinary knitting using cotton yarn and/or synthetic fibers without combining elastic yarn. For example, in this example 10, flat knitting is used, which is an ordinary knitting method (stockinette stitch) that is relatively durable as a sock knitting method.

On the other hand, the main body 10b-10f of the health promotion sock 10 from the tip 10j upward is generally formed by tuck knitting. Here, we will explain tuck knitting. Tuck knitting is a type of weft knitting in knitting, and as in normal knitting, a knitting needle (not shown) picks up a single piece of yarn and passes through the gaps between the previously made loops to create and connect new loops. However, in tuck knitting, the new loop does not pass through the previous loop, but is simply placed on top of it, and only when the next vertical row of yarn is knitted does it pass through the gaps between the two loops before it and the one before it to create and connect a new loop.

Specifically, in the example of tuck knitting shown in Figure 5, when each loop of one cotton yarn and/or chemical fiber 1a' is connected to each loop of the cotton yarn and/or chemical fiber 1b' one row below, the second and fourth loops from the left of the cotton yarn and/or chemical fiber 1b' are simply placed above the second and fourth loops from the left of the vertical row above, without passing through them, and when knitting the loops of the cotton yarn and/or chemical fiber 1c' one row below, the second and fourth loops from the left of the cotton yarn and/or chemical fiber 1b' one row above and the second and fourth loops from the left of the cotton yarn and/or chemical fiber 1a' two rows above are passed through and connected together. In this way, a knitting method in which a new loop connects the previous and previous loops together in a part of the process is called tuck knitting. In the case of this tuck knitting, it is a type of knit knitting and has the same elasticity at least in the horizontal direction, but has the characteristic that the part where the loops are connected together is stiffer in the vertical direction and has less elasticity (and therefore as a whole). In addition, the outer yarn, which is cotton yarn and/or chemical fiber, and the chemical fiber, such as polyurethane or FTY, may be tuck knitted as shown in FIG. 5.

Returning to FIG. 4, the central portion 10b is connected to the upper end of the tip portion 10j. This central portion 10b applies a certain amount of pressure around the metatarsal bones to correct the arch of the metatarsal bones, similar to the example in FIG. 1. This central portion 10b employs the above-mentioned tuck knitting using cotton yarn and/or chemical fibers, similar to the tip portion 10j, and is combined with an elastic yarn separately to increase the support force for the metatarsal bones (the corrective force for the arch). Therefore, the central portion 10 has less vertical elasticity than ordinary knitting, and because no elastic yarn is combined, it has less horizontal elasticity (extensibility) than the tip portion 10j.

The central portion 10b is generally similar to the conventional example in FIG. 1, except that the upper end of the central portion 10b, from the base portion 10c, to the ankle portion 10e, heel portion 10d, and shin portion 10f, is made of tuck knitting that is not combined with elastic yarn, and there is no second anti-slip portion. A first anti-slip portion 10g that extends to the upper edge of the health promotion sock 10 is continuously connected to the upper end of the shin portion 10f. The first anti-slip portion 10g is made of rib knitting that is highly stretchable in the lateral direction, with outer and inner knitting alternately woven around the shin or calf to prevent the health promotion sock 10 from slipping down, just like the first anti-slip portion 100g in the example in FIG. 1.

<Example 2 of health-promoting socks according to the present invention>
Fig. 6 shows a so-called short sock type health promotion sock 20 as a second embodiment of the present invention. As mentioned above, it was difficult to put the conventional type health promotion sock of Fig. 1 into practical use as a short sock that reaches the ankle. In health promotion socks, it is necessary to position the heel and the tips of the toes and correctly position the center part that supports the most important metatarsal bones, but if a normal knit is used, the positioning accuracy will decrease due to slipping down if the second slip-down prevention part 100h is not provided because it is highly elastic in the vertical direction. Therefore, it is disadvantageous for short socks that do not have the space to provide the second slip-down prevention part.

In this regard, in the second embodiment of the short-sock-style health promotion sock 20, as shown in FIG. 3(b), there is no second slip-down prevention part below the first slip-down prevention part 20g formed by ribbing.

The toe pouch 20a, tip portion 20j, center portion 20b, base portion 20c, ankle portion 20e, shin portion 20f, and heel portion 20d are the same as the toe pouch 10a, tip portion 10j, center portion 10b, base portion 10c, ankle portion 10e, shin portion 10f, and heel portion 10d of the first embodiment, respectively.

10, 20 Health promotion socks 10a, 20a Toe pockets 10b, 20b Center portion 10j, 20j Tip portion 10c, 20c Foot base portion 10e, 20e Ankle portion 10f, 20f Leg portion 10g, 20g First slip-down prevention portion

Claims (5)

A health promotion sock having toe pockets corresponding to each of the toes, a main body connected to all of the bases of each toe pocket, and a heel pocket corresponding to the heel,
Each of the finger pockets has a generally cylindrical shape with a closed tip side and an open base side, and covers at least the distal phalanges and the middle phalanges.
The main body is generally formed in a cylindrical shape from the tip side to the ankle side, has holes connected to the openings at the base side of each toe pocket so as to connect to the base side of each toe pocket at its tip edge, and has a tip portion covering at least the position of the proximal phalanx made of tuck knitted cotton yarn and/or synthetic fiber, and a central portion connected to the tip portion and covering at least the position of the metatarsal bones made of tuck knitted combination of elastic yarn and cotton yarn and/or synthetic fiber. The health-promoting socks according to claim 1, wherein each toe pouch from the tip to the toe side is formed by flat knitting cotton yarn and/or chemical fiber. The main body portion has a rear tubular portion that is connected to the central portion, extends to the ankle side, and covers from the metatarsal or cuneiform bone to at least a portion of the tibia, and a heel pouch portion that protrudes from the rear tubular portion to the heel side and covers at least a portion of the calcaneus,
3. The health promoting sock according to claim 1, wherein the rear tubular portion and the heel pocket portion are formed by tuck knitting. The health promotion sock according to any one of claims 1 to 3, wherein the rear edge of the rear tubular part of the main body is ribbed with a combination of elastic yarn and cotton yarn and/or synthetic fiber around the end position on the tibia side, and tuck-knit with cotton yarn and/or synthetic fiber around the other tibia. The health-promoting sock according to claim 3 or 4, wherein the rear edge of the rear tubular part of the main body covers the area around the ankle.