JP6798695B2 - Foot cover - Google Patents

Description

The present invention relates to socks, that is, foot covers, which are worn when wearing shoes such as sneakers, pumps, and loafer shoes, and are hidden inside the shoes so that they cannot be seen from the outside. The foot cover is sometimes referred to as cover socks, inner socks, nude socks, or the like.

As a fashion, shoes such as sneakers are worn with bare feet, and in the summer, pumps are worn with bare feet without wearing stockings, but the soles of the feet are easy to sweat, and the inside of the shoes can be worn with bare feet. It gets stuffy.

For this reason, socks that have traditionally had no upper part from the ankle and have a wide opening so that the ankle and at least a part of the instep are exposed so that the sock does not protrude from the shoe even when worn. That is, a foot cover is used.

Since such a foot cover has a wide opening, there is a problem that the foot cover may shift or come off from the heel portion during walking. Several proposals have been made to solve such problems.

For example, in Japanese Patent Application Laid-Open No. 10-292206 (Patent Document 1), a protruding elastic body made of a rubber material or the like is attached to the inner surface of the heel contact portion of the foot cover, and the protruding elastic body acts as a non-slip. , It is disclosed that it is difficult to remove the foot cover.

Further, in Japanese Patent Application Laid-Open No. 2013-76205 (Patent Document 2), a strip-shaped flat rubber is adhered to the entire circumference of the inner surface of the opening which is the opening, and the foot cover is stretchable and adhered to the rear inner surface and the front outer surface. It is disclosed to provide a non-slip formed by a silicone gel having a property. In the foot cover of Patent Document 2, the anti-slip on the rear inner surface comes into contact with the wearer's heel to prevent the foot cover from coming off, and the anti-slip on the front outer surface comes into contact with the inner surface of the sole of the shoe to prevent the foot. It is stated to prevent the cover from shifting.

According to Japanese Patent Application Laid-Open No. 2014-47434 (Patent Document 3), in the foot cover, the first stretchable narrow cloth is downward along the upper edge of the opening on the toe side from the toe side to the heel side. Inclined, the second stretchable narrow fabric tilts upward from the toe side to the heel side along the upper edge of the heel side of the opening, and the first stretchable narrow fabric and the second stretch The first and second stretchable narrow fabrics are joined to the foot cover fabric by hot pressing so that the narrow width fabrics intersect near the boundary between the sole and the side side, and the first elasticity It is disclosed that the narrow cloth and the second stretchable narrow cloth prevent the foot cover from slipping or coming off when worn.

In the foot cover disclosed in Patent Documents 1 to 3 described above, it is necessary to attach a member different from the foot cover main body to the foot cover main body in order to prevent the foot cover from coming off when worn. In the foot cover of Patent Document 1, it is necessary to attach a protruding elastic body made of a rubber material or the like to the inner surface of the heel contact portion. In the foot cover of Patent Document 2, it is necessary to adhere a strip-shaped flat rubber to the entire circumference of the inner surface of the opening and to attach a non-slip material formed of elastic and adhesive silicone gel to the foot cover main body. In the foot cover of Patent Document 3, it is necessary to attach the first stretchable narrow cloth and the second stretchable narrow cloth to the foot cover main body.

After manufacturing the foot cover main body in this way, attaching a member other than the foot cover main body to the foot cover main body has a problem that it takes time and effort to manufacture the foot cover and the manufacturing cost becomes high.

Further, since a member different from the foot cover main body is attached to the foot cover main body, the appearance is rugged, and there arises a problem that the other member may be peeled off after repeated washing.

The applicant of the present application first solved the problems of the conventional foot cover, and when the foot cover was worn, the applicant did not take it off even if he walked, and it did not take time and effort to manufacture, and the manufacturing cost became low. A foot cover has been proposed in Japanese Patent Application Laid-Open No. 2016-69750 (Patent Document 4).

Japanese Unexamined Patent Publication No. 10-292206 JP 2013-76205 Japanese Unexamined Patent Publication No. 2014-47434 Japanese Unexamined Patent Publication No. 2016-69750

The foot cover of Patent Document 4 is knitted using a thick coated elastic yarn in which a urethane yarn having a thickness of 200 dtex or more is used as a core yarn and is single-covered with a thin coated yarn at the start of knitting of the cuff. Occasionally, the thick urethane thread inside the opening was made to adhere to the skin, making it difficult to remove the foot cover.

The foot cover of Patent Document 4 is also difficult to remove, but the thick coated elastic yarn is knitted in a flat knit as usual inside the cuff, so that the surface is flat.

An object of the present invention is to further improve this to provide a foot cover in which irregularities are formed by knitting on the inside of a cuff portion corresponding to a heel portion to increase frictional force and make it even more difficult to remove. ..

The present invention comprises a body portion and a cuff, which comprises a toe, a heel and an intermediate portion, covers the sole, toe and heel when worn, and from the cuff to the ankle and at least the instep. In the foot cover in which a part of the heel is exposed, the body portion is knitted with a thread knitting composed of a front thread and a back thread, the front thread is a thread composed of short fibers or long fibers, and the back thread is It is an elastic thread having a urethane thread as a core thread, and the cuff is knitted into a bag-shaped double welt, and the knitting yarn of each course goes around the cuff and the inner portion of the cuff. However, it is knitted with a thick coated elastic thread in which a urethane thread having a thickness of 200 dtex or more, which is thicker than the urethane core thread of the back thread of the body portion, is used as the core thread and is single-covered with a thin coated thread, and the outer portion of the shoe opening portion. However, the same knitting yarn as the front yarn in the body portion is used, and in the heel side region in the inner portion of the opening portion, large stitch courses and small stitch courses are alternately knitted to form unevenness. In the front region of the inner portion of the cuff, the purpose is achieved by a foot cover characterized in that the entire course is knitted with the large stitches.

In the present invention, in the heel side region in the inner portion of the cuff, it is preferable that 1 to 5 courses of small stitches are knitted for every 1 to 10 courses of large knitting.

Further, in the present invention, the foot cover is started to be knitted by the thick coated elastic yarn from the inner lower end of the cuff portion, and the stitches of the same size are formed over the entire circumference of the cuff portion by the thick coated elastic yarn. It is preferable that 3 to 10 courses are knitted, and then the small stitch course and the large stitch course are alternately knitted in the heel side region in the inner portion of the cuff.

According to the present invention, the heel portion of the foot cover is knitted into a bag-shaped double welt, and the knitting yarn of each course goes around the heel portion, and the inner portion of the heel portion is the body portion. It is knitted with a thick coated elastic thread that is single-covered with a thin covering thread using a urethane thread with a thickness of 200 dtex or more, which is thicker than the urethane core thread of the back thread, as a core thread, and is large in the heel side region in the inner portion of the cuff. Since the course of the stitches and the course of the small stitches are alternately knitted to form unevenness, when the foot cover is worn, the unevenness formed in the heel side region in the inner part of the wearing mouth is the upper part of the wearer's heel. The anti-slip effect is increased by the high frictional force due to the unevenness, and the heel of the foot cover does not come off during walking.

Further, the cuffs of the foot cover are in a state of being stretched from a non-tensioned state in the wearing state, and in the foot cover of the present invention, the cuffs are thickly coated in the front region portion knitted by the thick covering elastic yarn inside the cuffs. Urethane thread, which is the core thread of the thread, comes into close contact with the skin on the instep and side of the wearer's foot. Urethane yarn has a large frictional force and is not slippery, so the foot cover will not come off even if you walk while wearing the foot cover.

According to the present invention, in the front region of the inner portion of the cuff, the entire course is knitted with large stitches. Therefore, when knitting with a sock knitting machine using cylinders having the same diameter, the foot cover has a wide opening. Can be.

It is a schematic plan view when one Example of the foot cover of this invention was set on the paper pattern, FIG. 1 (a) shows the state which was set with the surface of the foot cover on the outside, and FIG. 1 (b) is FIG. The state in which the foot cover of (a) is turned upside down and set with the back side facing outward is shown. FIG. 2A is an enlarged plan view of a portion surrounded by ◯ in FIG. 1B, and FIG. 2B is an enlarged cross-sectional view taken along the line bb in FIG. 2A. .. It is a development view which shows the knitting process of the cuff part of one Example of the foot cover of this invention. This is an example of a data image for controlling the action of the ducking stitch cam in the sock knitting machine for knitting the foot cover of the present invention. It is a knitting structure diagram which shows an example of the knitting structure in the front region of the inner part of the cuff part of the foot cover of this invention.

Hereinafter, the present invention will be described in detail based on the examples shown in the drawings.

As shown in FIG. 1A, the foot cover of the present invention is composed of a body portion 1 and a cuff portion 2, and the body portion 1 is composed of a toe portion 11, a heel portion 12 and an intermediate portion 13, and is worn when worn. It covers the sole, toes and heels of the person, and the wearer's ankle and at least a part of the instep are exposed from the opening 2.

In the foot cover of the embodiment shown in FIG. 1, the cuff 2 is relatively wide open and the toe 11 is short, so that the wearer's ankle and instep are exposed. The foot cover shown in FIG. 1 is suitable for wearing shoes or sneakers that expose the instep.

In the present invention, an elastic yarn having a urethane yarn as a core yarn is used as a knitting yarn so that the body portion 1 of the foot cover fits the wearer's foot. Specifically, the body portion 1 is knitted with a knitting yarn consisting of a front yarn and a back yarn (subscription yarn), a yarn consisting of short fibers or long fibers is used for the front yarn, and a urethane yarn is used as the core for the back yarn. Use elastic thread as the thread.

Various materials can be used for the front yarn depending on the season and application. For example, polyester or nylon long fibers, cotton, cotton blend (cotton acrylic, etc.), hemp, hemp blend (cotton linen, etc.), wool blend (cotton linen, etc.) Acrylic wool blend, etc.) may be used. The thickness of the front yarn varies depending on the season and application. For example, in the case of long fiber yarn, it ranges from as thin as stocking yarn to about 200 dtex, and in the case of short fiber yarn, 150. ~ 1000dtex is often used.

The back yarn may be a coated elastic yarn having a urethane yarn as a core yarn, and for example, a yarn (FTY) in which a woolly nylon yarn is wound around a polyurethane yarn, a single covered yarn, a core spun yarn, or the like can be used. The thickness of the urethane yarn as the core yarn is, for example, 20 to 50 dtex, and the thickness of the covering yarn is about the same as or thicker than the core yarn.

FIG. 3 is a development view showing a knitting process of a cuff portion according to an embodiment of the foot cover of the present invention. In FIG. 3, the total width in the horizontal direction represents one round of the knitting machine, and the vertical direction represents the process of knitting. In FIG. 3, reference numerals AA indicate the instep side center, and reference numerals BB indicate the heel side center. The reference numerals CC indicate the boundary line between the heel side region and the front side region. The position of the boundary line CC may be shifted in the width direction depending on the embodiment (that is, the width of the heel side region may be widened or narrowed). In FIG. 3, the body portion 1 is indicated by reference numeral 1 below the opening portion 2, but the knitting process of the body portion 1 is omitted, and the body portion 1 may be knitted by a known method.

As shown in FIG. 3, in the foot cover of the present invention, the knitting is started from the cuff 2 and the body 1 is knitted following the knitting of the cuff 2. The cuff 2 is knitted into a bag-shaped double welt, and the inner portion (the side in contact with the wearer's foot) of the cuff 2 serves as a non-slip portion 22.

Double welt knitting is a known knitting method as described in Japanese Patent Application Laid-Open No. 2016-69750, and knitting is started from the inner lower end 21 of the cuff 2 and every other cylinder needle acts at the beginning of knitting. Try to take a position. This is done by every other jack on the bottom of the cylinder.
〇 Every other loop is created by the first yarn feeding.
〇 All needles work in the secondary yarn feeding.
〇 With the third thread feed, every other needle is arranged again, and the hook of the dial jack advances on the non-acting needle, and the ribs meet. As it is, Jack holds the loop, recedes into the dial, and continues in that state until the end of the welt formation.
〇 All needle knitting positions will be taken from the 4th yarn feeding, and welt knitting will be continued.

After knitting 1 to 10 courses from the fourth yarn feeding, the non-slip portion 22 including the uneven portion 22a in the heel side region and the flat portion 22b in the front side region is knitted.

After knitting the non-slip portion 22, the inner upper end portion 23 of the cuff portion 2 and the outer portion 24 of the cuff portion 2 are knitted. Then, when the required length of the welt is knitted, the dial jack advances onto the needle, which was in the inactive position, while holding the loop of the third yarn feeding on the hook. The needle rises for knitting and enters the gap at the tip of the jack, and then the jack transfers the holding loop to the needle, so when the hook retracts, the tip cracks and the loop is left on the needle, and the transfer (transfer) ) Is performed.

As described above, the bag-shaped double welt is knitted. After that, the body portion 1 is knitted.

In the foot cover of the present invention, as shown in FIGS. 1 (b) and 2 (a) and 2 (b), the lower end 21 on the inside of the opening 2 (the side in contact with the wearer's foot) is a double welt. This is the beginning of knitting (the beginning of make-up knitting). The knitting start portion 21 and the non-slip portion 22 of the double welt are thin coating yarns using urethane yarns having a thickness of 200 dtex or more, preferably 200 to 300 dtex, which is thicker than the urethane core yarn of the back yarn of the body portion 1, as the core yarn. Is knitted with a thick coated elastic yarn that is single-covered at a rough pitch. As the fine coating yarn, for example, long fibers such as nylon having a thickness of 50 dtex or less, preferably 15 to 35 dtex, which is thinner than the FTY coating yarn usually used for socks, are suitable.

In the present invention, the thick urethane yarn is not used as a bare yarn (bare yarn), but is covered with a thin coating yarn, so that slippage as a knitting yarn can be ensured. Further, since it is necessary that a thick urethane thread can be knitted by a knitting machine, the upper limit of the thickness is determined by the knitting machine.

In the present invention, in order to form the uneven portion 22a in the heel side region in the inner portion of the cuff 2 by knitting, a circular knitting sock knitting machine with an automatic linking device provided with a ducking stitch cam (for example, Ronati, Italy). Knitting with a circular knitting sock knitting machine). The ducking stitch cam is a cam for moving the stitch cam up and down together with the base in order to change the size of the stitch.

The size of the stitch is usually changed by changing the loop length by moving the cylinder of the knitting machine up and down. When changing the size of stitches by moving the cylinder of the knitting machine up and down, it cannot be changed unless at least one course is knitted. It is difficult due to the mechanism of the knitting machine to change the size of the stitches in the middle of one course.

In normal sock knitting, the ducking stitch cam is knitted in an inactive state. Generally, the ducking stitch cam is not used (that is, the non-acting state) is used for knitting, but the ducking stitch cam may be put into the working state when partially knitting a plurality of courses in the middle of knitting.

On the other hand, in the present invention, the knitting is started with the ducking stitch cam as the working state (a stitch larger than usual is knitted). In the knitting of the cuff 2, the ducking stitch cam is almost in action. In the knitting of the body portion 1, the ducking stitch cam may be used as the working state to knit the whole body portion 1, or the acting state and the non-acting state may be used separately depending on the portion of the body portion 1. For example, when knitting the instep area, the ducking stitch cam is set as the non-acting state, and when knitting the sole area, the ducking stitch cam is set as the working state.

FIG. 4 shows a data image for controlling the action of the ducking stitch cam when knitting the non-slip portion 22. In FIG. 4, reference numerals AA indicate the instep side center, and reference numerals BB indicate the heel side center. In FIG. 4, the ducking stitch cam is inactive in the shaded area, and the ducking stitch cam is in action in the other parts. When the ducking stitch cam is in the working state, the stitch cam is lowered together with the base, and when the knitting needle performs the knitting motion in this state, the loop length of the stitch becomes long and the stitch becomes large. On the other hand, when the ducking stitch cam is knitted in the non-acting state, it is in the normal knitting state, and the stitches are smaller than the stitches in the working state of the ducking stitch cam.

As shown in FIG. 4, the shaded portion in which the ducking stitch cam is inactive is set at the time of knitting the heel side region. The white part in FIG. 4 is a setting in which the ducking stitch cam is in the operating state, and is set alternately with the shaded part in the formation of the heel side region. When the non-slip portion 22 is knitted, the front region is knitted with the ducking stitch cam in the working state. Therefore, in the course including the shaded portion, the ducking stitch cam is controlled to take a non-acting state (when knitting the heel side region) and an acting state (when knitting the front side region) while knitting one course.

The heel side area in the inner part of the cuff 2 is knitted in a flat knit, but every time 1 to 10 courses of large stitches are knitted with the ducking stitch cam in the working state, the ducking stitch cam is in the inactive state and is small. Organize 1 to 5 stitch courses. When knitted in this way, the course of the large stitches protrudes, the course of the small stitches becomes recessed, and the uneven portion 22a is formed.

Since the heel side region in the inner portion of the cuff portion 2 is uneven in this way, the foot cover of the present invention has a synergistic effect of the anti-slip effect of the thick coated elastic thread and the frictional force of the uneven portion 22a. , The heel of the foot cover does not come off when walking. Further, even when compared with the foot cover disclosed in Patent Document 4 previously filed by the applicant of the present application, it is more difficult to remove the foot cover.

The front area of the non-slip portion 22 is knitted by the thick coated elastic thread described above, but if unevenness is formed in the front area, the instep feels uncomfortable due to the unevenness when the shoelaces are tightened when wearing sneakers or the like. Since there is a possibility, it is preferable that the front region is a flat portion 22b.

The flat portion 22b may be entirely flat knitted, a flat knitted fabric and a float knitted fabric (floating knitted fabric) as shown in the knitting structure diagram of FIG. 5 may be combined to form a mesh style, or both may be used in combination. For example, the side part in the anterior region (the part in contact with the side surface between the heel and the toe of the wearer's foot) may be flat knitted, and the front part (the part in contact with the instep of the wearer's foot) may be mesh-like. May be good.

As described above, after knitting up to the non-slip portion 22 with a thick coated elastic yarn, double welt knitting is continuously performed by replacing the knitting yarn, and the upper portion 23 inside the cuff portion and the outer portion 24 of the cuff portion 24 are formed. It is organized. The upper part 23 inside the cuff and the outer part 24 of the cuff are knitted using the same knitting yarn as the front yarn in the body portion 1, and preferably, rubber ridge knitting by float knitting (knitting that looks like so-called rubber knitting). It is organized in one). The outer portion 24 of the cuff is knitted by the rubber thread insertion knitting. Preferably, the rubber thread is inserted into the rubber ridge. The rubber thread used for the rubber thread insertion knitting is not particularly limited, but a covered yarn having a thickness of 70 to 130 is suitable.

After the knitting of the cuff part 2, the knitting of the body part 1 is continued. The toe portion 11, the heel portion 12, and the intermediate portion 13 are knitted by the thread knitting using the front yarn and the back yarn described above. The toe portion 11 and the heel portion 12 can be knitted by changing the swing width of the forward / reverse reciprocating motion of the cylinder of the knitting machine. Following the cuff portion 2, the toe portion 11 may be knitted first, and conversely, the heel portion 12 may be knitted first. The intermediate portion 13 is formed when the toe portion or the heel portion is knitted. After knitting, the foot cover is completed by bending the open portion between the toe portion 11 and the heel portion 12 by linking or sewing.

In the present invention, the body portion 1 may be formed in any knitting process as long as it is a knitting yarn using the front yarn and the back yarn described above, and therefore, the number, position, and shape of the gore lines are particularly important. It is not limited.

The yarn used in the foot cover of the present invention uses various materials depending on the season and application, and a specific example is as follows.
* Thick coated elastic yarn of knitting start part 21 and non-slip part 22 inside the opening part: 280 denier (about 311 dtex) polyurethane yarn core yarn, 20 denier (about 22 dtex) nylon yarn (coating yarn) single Covered * Upper inner part 23 of the opening, outer 24 of the opening and front thread of body 1: 150 denier (about 166 dtex) polyester filament * Back thread (thread) of body 1: 30 denier ( A yarn (FTY) in which a polyurethane yarn of about 33 dtex) is single-covered with a polyester yarn of 75 denier (about 83 dtex).
* Rubber thread to be inserted into the upper part 23 inside the opening and the outer part 24 inside the opening: No. 100 rubber thread of double-covered yarn.

In the double welt knitting of the cuff portion 2 of the above-described embodiment, the knitting is performed over the entire circumference of the cuff portion with a thick coated elastic yarn from the first yarn feeding to the yarn replacement. It should be noted that the knitting is performed with all the needles from the fourth yarn feeding until the transfer is performed and the knitting of the cuff 2 is completed.

In the present invention, the width of the non-slip portion 22 inside the cuff portion by the thick coated elastic yarn is such that the course of the large stitch and the course of the small stitch are alternately arranged in the heel side region, so that the width of the uneven portion 22a is the front side region. It is slightly narrower than the width of the flat portion 22b of.

1 Body part 2 Toe part 11 Toe part 12 Heel part 13 Middle part 21 Inner lower end part of the shoe opening 22 Non-slip part inside the shoe opening 22a Uneven part of the non-slip part 22b Flat part of the non-slip part 23 Inner upper 24 Slip protection outside

Claims (3)

It consists of a body part and a cuff part, and the body part consists of a toe part, a heel part and an intermediate part, and covers the sole, the toe and the heel when worn, and the ankle and at least a part of the instep are covered from the cuff part. In the exposed foot cover, the body portion is knitted with a thread knitting composed of a front thread and a back thread, the front thread is a thread composed of short fibers or long fibers, and the back thread has a urethane thread as a core. It is an elastic thread to be used as a thread, and the cuff is knitted into a bag-shaped double welt, and the knitting yarn of each course goes around the cuff, and the inner portion of the cuff is the body. It is knitted with a thick coated elastic thread that is single-covered with a thin covering thread using a urethane thread with a thickness of 200 dtex or more, which is thicker than the urethane core thread of the back thread of the part, as the core thread, and the outer part of the cuff is on the body part. The same knitting yarn as the front yarn is used, and in the heel side region in the inner portion of the cuff, large knit courses and small knit courses are alternately knitted to form irregularities, and the cuff is formed. A foot cover characterized in that all courses are knitted with the large stitches in the front region of the inner portion. The first aspect of claim 1, wherein in the heel side region in the inner portion of the cuff portion, 1 to 5 courses of small stitches are organized every time 1 to 10 courses of large stitches are organized. Foot cover. The foot cover is started to be knitted by the thick coated elastic thread from the inner lower end of the cuff, and 3 to 10 courses are knitted by the thick coated elastic thread with stitches of the same size over the entire circumference of the cuff. The foot cover according to claim 1 or 2, wherein the small stitch course and the large stitch course are alternately knitted in the heel side region in the inner portion of the cuff portion.

Images