JP2009144273A - Tightening part of stocking - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide tightening parts of a stocking, which is doubled in stretchability in a wale direction, has soft and fitting feeling, and is prevented from slipping off. <P>SOLUTION: The tightening parts 13 and 23 of a stocking 11 each positioned 10 cm or more above an ankle part K3. The tightening parts prevent slipping off by using for a main yarn, a polyurethane yarn thinner than 40 denier as a plaiting yarn without inserting a rubber yarn into the tightening parts 13 and 23, arranging a few courses of face stitch in the knitting direction of the tightening parts 13 and 23, arranging a few courses of reverse stitch so as to form a modified purl knitting texture, and having an extension in the wale direction to have an elongation of 30% or more in the vicinity of load 0 in an uneven bellows-like big transverse ridge pattern texture 34 which is formed by the face stitch courses and the reverse stitch course. A method for producing the tightening parts is also provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sock tightening portion, and more particularly to a sock tightening portion that doubles the stretchability in the wale direction to prevent slippage.

A tightening portion is provided at the mouth of the sock. In particular, socks are required to be strongly tightened in order to prevent slipping. Therefore, conventionally, the tightening portion of the sock has been given a strong tightening function by inserting a rubber thread (for example, Patent Document 1). However, for this reason, a sense of incongruity due to tightening occurs and the feeling of wearing is poor.
Utility Model Registration No. 3010549

In addition to this, many other proposals have been made to prevent socks from slipping off (for example, Patent Document 2, Patent Document 3, Patent Document 4, Patent Document 5, Patent Document 6, Patent Document 7, Patent). Document 8, Patent Document 9).
Japanese Utility Model Publication No. 7-12410 Japanese Utility Model Publication No. 63-143503 Japanese Utility Model Publication No. 41-18354 Japanese Utility Model Publication No. 41-18353 Japanese Utility Model Publication No. 10-168605 Japanese Utility Model Publication No. 54-108120

  In Patent Documents 2 to 5, the Gore line is lengthened and formed into an L shape. Moreover, patent documents 6-7 make a gore line into a Y-shape. However, both are difficult to wear.

The cause of slipping is originally due to the fact that the Achilles tendon expands and contracts due to walking, and this pulls the back of the sock. In this regard, prior arts in which an expansion / contraction part is provided on the upper part of the heel have also been proposed (for example, Patent Document 8, Patent Document 9, Patent Document 10, and Patent Document 11). However, these prior arts are uncomfortable because the stretchable part is limited to the local part. Therefore, socks that have been devised based on the above causes have not been found.
Japanese Utility Model Publication No. 51-49525 Japanese Utility Model Publication No. 51-44436 Japanese Utility Model Publication No. 51-44435 Japanese Utility Model Publication No. 51-31927

On the other hand, the basic knitting structure of the knit is composed of a flat knitting, a rubber knitting, and a pearl knitting, and a combination of these is also disclosed (for example, Patent Document 12).
Japanese Utility Model Publication No. 64-14104

Among them, the pearl knitting forms a recumbent pattern, and is used in addition to the tightening portion (for example, Patent Document 13 and Patent Document 14).
Japanese Utility Model Publication No. 6-37303 Noto 3076702 gazette

On the other hand, the rubber knitting is one in which the front and back are arranged for each wale, but there are not only a 1 × 1 rubber knitting but also a number of change rubber knittings such as a 2 × 1 rubber knitting and a 3 × 2 rubber knitting. In contrast, the pearl knitting in which the front course and the back course are arranged in the horizontal direction is limited to a 1 × 1 pearl knitting in which both eyes are alternately arranged (for example, Patent Document 15).
JP 2003-64501 A

  In the knit knitting, the knitted fabric is knitted in the course direction by dipping the loop with a knitting needle, so that the knitted fabric has the property of being wound outward in the course direction. The finer the stitches, the more intense the entanglement and the harder it was to finish the product. Therefore, it is an established concept that the knitted fabric is not stable unless it is 1 × 1 pearl.

  The characteristic of the knit is that it has a certain degree of elasticity unlike the woven fabric, but it is adapted to various human body sizes depending on different display sizes of large, medium and small. However, since there is a limit to the stretchability, if a knitted fabric with a richer stretch can be realized, a better product can be developed.

  After all, the drawback of slipping off socks has been considered essential. In many of the prior arts, the expansion / contraction part is limited to a local part, which is uncomfortable. Moreover, even if the mouth rubber part was tightened for a long time, the defect of slipping could not be solved.

  The present invention has focused on the fact that it breaks the conventional concept and uses the entrainment that can be said to be a defect, leading to an increase in the amount of entrainment. In other words, the knit has front and back stitches, and if the front stitches are wound outward, the back stitches are rolled in, so if the front stitches can be knitted several times and then the back stitches can be repeated several times, A large recumbent structure can be formed by mutual entrainment, and the stretchability in the wale direction can be doubled. If the stitches are made finer, it becomes stronger, and if the stitches are made rougher, it becomes soft.

  In view of the above circumstances, the problem to be solved by the present invention is to provide a sock tightening portion that doubles the stretchability in the wale direction, has a soft and fit feeling, and prevents slipping off. .

  In order to achieve the above object, according to the present invention, the tightening part of the sock is made of 10 cm or more above the heel part, and the rubber thread is not inserted into the tightening part, and the additional thread is added to the main thread from 40 denier. Using a thin polyurethane thread, arrange several courses of the front course in the knitting direction of the tightening part, and then arrange several courses of the back course to form a modified pearl knitting structure. A sock-tightening part that prevents the slippage from falling off is formed by an uneven bellows-like large ribbed pattern formed in the above-described manner so that the elongation in the wale direction can be expanded and contracted by 30% or more in the vicinity of zero load. Is.

  In order to achieve the above-mentioned object, the present invention knitted a sock comprising a tightening portion of 10 cm or more above the heel portion on a knitting machine with a length about twice as long, and inserted a rubber thread into the tightening portion. Without using polyurethane yarn thinner than 40 denier as a splicing yarn for the main yarn, arrange several courses of the front course in the knitting direction of the tightening part, and then arrange several courses of the back course to form a modified pearl knitting structure Consists of a large rugged bellows pattern structure formed by the course of the front and back courses so that the elongation in the wale direction can be expanded and contracted by 30% or more near zero load It constitutes a method for manufacturing a sock fastening portion that prevents falling.

  Since the tightening portion of the sock of the present invention doubles the stretchability in the vertical direction, there is no fear of slipping.

  Since the tightening portion of the sock of the present invention has lost the rubber thread, there is no uncomfortable feeling of tightening.

  The tightening portion of the sock of the present invention is soft and has a feeling of fit, and is a comfortable sock.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a plan view showing an embodiment of a sock using the tightening portion of the present invention. FIG. 2 is an organization chart showing an embodiment of the sock fastening portion of the present invention.

  The sock shown in FIG. 1 is a men's short sock 1 using the tightening portion of the present invention, but the sock of the present invention can also be applied to high socks and the like. The sock 1 of the present embodiment is an example of a thin general sock for spring and summer. The sock circular knitting machine is a knitting machine with a diameter of 4 mm and a large knitting machine. The number of needles is about 96 to 240. When the number of needles increases, the fabric becomes thin, and when the number of needles is small, the fabric becomes thick. The knitting machine of the present embodiment uses an intermediate number of stitches of 176. 2 is the upper end of the beginning of the knitting, 3 is the tightening portion of the present invention, and a large horizontal pattern 4 having an irregular bellows shape is formed.

  The tightening portion 3 is made of 10 cm or more above the heel part, and in the case of this embodiment, the product is 16 cm long. The length is not limited to this, but in the case of short socks, the length is about 14 to 18 cm. However, the length of the tightening portion 3 is knitted to about twice as long on the knitting machine. In the case of the present embodiment, the tightening portion 3 having a length of 16 cm is a product having a length of 37 cm that is twice or more on the knitting machine. More than twice this length is taken down from the knitting machine, then gradually contracted and set, so that the product has a length of 16 cm. The reason why the tightening portion 3 of the sock of the present invention is 10 cm or more is that an elongation of 30% or more is expected corresponding to the expansion and contraction of 3 cm.

  FIG. 2 is an organization chart showing an embodiment of a sock fastening portion according to the present invention. The fastening portion 3 is a large ridge pattern tissue 4 having an uneven bellows shape. In the case of the present embodiment, the recumbent pattern structure 4 is composed of a main thread 5 and a splicing thread 6. The number of stitches for the knitting yarn is determined by the number of stitches, but since the present embodiment is a sock for spring and summer, 39 yarns of double yarn are used as the main yarn 5. If this is a winter sock, 40 wool singles etc. will be used.

  Normally, a thick rubber thread is inserted into a rib knitting in a mouth rubber part of a sock. Since this insertion provides a sufficient elongation in the course direction, this provides a tightening effect, but is uncomfortable with a trace of tightening remaining on the foot. Moreover, since it does not extend at all in the longitudinal direction of the wale direction, this causes a slippage. However, in the sock of the present invention, a rubber thread is inserted only into the upper end 2 at the beginning of knitting for adjusting the shape of the ear end, and is not used for the subsequent tightening portion. Instead, a feature of the present invention is that a polyurethane thread thinner than 40 denier is used as the splicing thread 6 by knitting. In the case of this example, a 20-denier polyurethane yarn covered with a 70-denier nylon yarn is used. Normally, polyurethane yarn of 40 denier or more is used even in women's underwear, so the polyurethane yarn used for the splicing yarn 6 of the present invention is quite thin, and this is not only on the side of the tightening part. It stretches vertically and gives a large soft feeling, so that it does not feel tight.

  Further, in the present invention, a modified pearl knitting structure P is formed in which several courses of the front and rear surfaces 7 and 7 are arranged in the knitting direction, and then several courses of the back and rear meshes 8 and 8 are arranged. In the present embodiment, an example in which each of the two courses is small has been shown. However, the number of courses is not limited to this, and usually more courses are arranged. For this reason, the tightened portion 3 is formed with a large rugged bellows pattern 4 as shown in FIG. 2, which enhances the stretchability in the longitudinal direction of the wale and contributes to prevention of slipping. It has become a thing.

  3A and 3B are diagrams for explaining the cause of slipping, in which (A) is the state where the toes are lowered, and (B) is the Achilles tendon from the inflated shin part to the ankle part when the toes are raised. It is explanatory drawing which shows the expansion-contraction state of a site | part. FIGS. 4A and 4B are diagrams for explaining the cause of slippage prevention. FIG. 4A is a state where the toe is attached to the ground, and FIG. It is a perspective view of socks which responds to extension of the Achilles tendon part from a part to a heel part, and shows that it does not slip. FIGS. 5A and 5B are diagrams showing the stretched state of the uneven bellows-like tightening portion, where FIG. 5A is an explanatory view showing a state of being wound and contracted, and FIG. 5B is an explanatory view showing a state of being extended in the wale direction.

  In FIG. 3, C1 and C2 are bulging shin parts, A1 and A2 are Achilles tendon parts, and K1 and K2 are heel parts. (A) is when the toe is lowered, and the contraction length of the Achilles tendon site A1 from the inflated shin site C1 to the heel site K1 is L1. On the other hand, when the tip of (b) is raised, the extension length of the Achilles tendon site A2 from the bulging shin site C2 to the heel site K2 is L2.

  This example shows an example of a standard general adult male. In this embodiment, L1 is 13 cm and L2 is 16 cm. Therefore, L2−L1 = 3 cm is the maximum length that the back of the foot is expanded and contracted by walking. Of course, there is a case where the sole length of the lower half portion when walking is stretched or the sock is pulled by the shoes to be worn, but if the expansion / contraction range up to 3 cm is considered, all of them are included in this range. Therefore, if a sock that can absorb the repeated stretch length of the back of the 3 cm foot is able to be absorbed, slippage can be prevented.

  FIG. 4 shows a state when the sock of the present invention is put on the foot of FIG. In FIG. 4 (a), the sock 11 of the present embodiment has a length from the rear gore line G to the knitting start tip 12 of 23 cm, and the tightening portion 13 has a length of 16 cm. Therefore, the front end 12 of the knitting reaches the middle of the bulging shin part C3. In addition, 34 is a bellows-like recumbent stalk structure, and K3 is a heel part.

  Assume that the extension of the Achilles tendon region from the state of FIG. 4 (a) to the heel region from the state of FIG. If the sock tightening portion 23 can extend 30%, the 16 cm long sock tightening portion 23 responds simply by extending the 10 cm long tightening portion 23a, and the position of the upper end 22 shifts. There is no.

  FIG. 5 shows a stretched state of the concave and convex bellows-like tightening portion of the present invention. (A) shows a state of being wound and contracted, and (B) shows a state of being vertically extended in the wale direction. The horizontal pattern structure of the tightening portion of the present invention is a structure in which the lower stitches are wound outwards and the upper stitches are wound inwardly by the circular knitting machine. Yes.

  The sock tightening portion of the present invention has an uneven bellows-like pattern in the ribbed pattern as described above, and therefore absorbs the pulling force of the back of the sock by the stretchability in the wale direction. The fall is prevented.

  6-8 are JIS. It is a graph which shows the result of the tensile strength-elongation test by the grab method of L1018, and is the result of having pulled at the speed | rate of 300 mm / min. In the grab method, since the knit is gripped and pulled at the middle part, conditions equivalent to those when actually worn can be reproduced. FIG. 6 is a graph showing the strength and elongation of the tightening portion in the course direction up to the maximum load after cutting. FIG. 7 is a graph showing the strength and elongation of the tightening portion in the direction of the direction of the maximum load after cutting. FIG. 8 is an enlarged graph of the initial stage of FIG.

  In addition, the comparative product used in this example should use the conventional rubber part with strong tightening, but there was no sample that could collect a 15 cm long sample required as a test sample for the grab method. A 15 cm long sample labeled "Loose Rubber" was substituted. Therefore, it is understood that the conventional general rubber part is stronger than the result of the comparative product.

  The vertical axis of each graph indicates strength (N), and the horizontal axis indicates elongation (%). The curve SC in FIG. 6 is the result of pulling the tightening portion of the product of the present invention laterally in the course direction, and the curve TC is the result of pulling the tightening portion of the comparative product laterally in the course direction. It can be seen that the comparative product has a large stretchability in the course direction.

  Curve SW1 in FIG. 7 is the result of pulling the tightening portion of the product of the present invention vertically in the wale direction, and curve TW1 is the result of pulling the tightening portion of the comparative product vertically in the wale direction. From this result, it can be seen that the tightening portion of the product of the present invention tends to extend vertically in the wale direction. The following Table 1 summarizes the results of the strength and elongation at the time of cutting and maximum load in FIGS. 6 and 7.

  From the results in Table 1, it is shown that when the product is pulled vertically in the wale direction, the comparative product cuts by 205.1%, whereas the product of the present invention grows by 307.6% before cutting. . In the comparative product, the time of cutting and the maximum load coincide, but the product of the present invention differs in the time of cutting and the maximum load.

  Next, FIG. 8 is an enlarged graph of the initial stage of FIG. 7 up to an elongation of 150%. When compared in the initial stage in the wale direction, the strength and elongation curve SW2 of the tightening portion of the product of the present invention requires almost no load weight compared to the strength and elongation curve TW2 of the tightening portion of the comparative product. It can be seen that the two are greatly different.

  If the expansion and contraction of 3 cm at the maximum with respect to the previous walking is extended by the tightening portion, if the length of the tightening portion is at least 10 cm, it may be increased by 30%. Looking at the curve SW2 in FIG. 8, the 30% elongation can be extended with a load of about zero. Therefore, if the tightening portion is 16 cm, it can be digested only by stretching 10 cm below the tightening portion, and there is no possibility that the upper end of the knitting will be displaced. Table 2 below summarizes the results of the curves SW2 and TW2.

  In the case of the present embodiment, it is shown that it can freely expand and contract with no load up to a longitudinal elongation of 50%. Therefore, the tightening portion of the sock of the present invention only needs to be capable of expanding and contracting at least 30% in the vicinity of zero load at least in the wale direction. Here, the vicinity of zero load includes at least an easily stretchable material having a strength of 2.0 N or less.

  The tightening part of the sock of the present invention is doubled from the conventional one until it reaches vertical stretchability, and it is soft and rich in fit, so it becomes a knitted fabric with a better sense than before, various products with new sense It can be used widely.

It is a top view which shows one Example of the sock using the clamping part of this invention. It is an organization chart which shows one Example of the fastening part of the sock of this invention. The figure explaining the cause of slipping, (a) is the state where the toe is lowered, (b) is the explanation showing the stretched state of the Achilles tendon part from the bulging shin part to the heel part when the toe is raised FIG. In the figure explaining the cause of slipping prevention, (a) is the state where the toe is put on the ground and (b) is the heel part from the inflated shin part at the tightening part when the toe is raised It is a perspective view of the sock which responds to the elongation of the Achilles tendon part until it shows, and does not fall down. It is a figure which shows the expansion-contraction state of an uneven | corrugated bellows-like fastening part, (A) is explanatory drawing which shows the state which wound and contracted, (B) is explanatory drawing which shows the state extended in the wale direction. It is a graph which shows to the time of the time of the maximum load after a cutting | disconnection of the intensity | strength of a course direction of a fastening part, and elongation. It is a graph which shows to the time of the maximum load after a cutting | disconnection of the intensity | strength and elongation of a fastening part in the wale direction. It is the graph which expanded the initial stage of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Socks 2,12 Tip of the beginning of knitting 3,13 Fastening part 4,14,24,34 Lying pattern 5 Front thread 6 Back thread 7 Front 8 Back A1 A1, Achilles tendon part C1,2,3 Lattice part G Gore line K1,2,3 Lumbar part L1 Length when the foot is extended L2 Length when the foot is contracted P Modified par knitted structure SW1, Strength in the direction of the wale of the tightening part of the present invention Strength and elongation of the tightening part of the present invention product in the course direction TW1, 2 Strength and elongation of the tightening part of the comparison product TC Strength and elongation of the tightening part of the comparison product in the course direction Every time

Claims (5)

  The sock tightening part is made of 10 cm or more above the heel part, no rubber thread is inserted into the tightening part, and a polyurethane thread thinner than 40 denier is used as a splicing thread for the main thread, the tightening part A number of front courses are arranged in the knitting direction, followed by several back courses to form a modified pearl knitting structure. A sock fastening portion characterized in that in a handle structure, elongation in the wale direction can be expanded and contracted by 30% or more in the vicinity of a load of 0 to prevent slipping off.   The sock tightening portion according to claim 1, wherein the length of the tightening portion is 14 to 18 cm in the case of short socks.   The sock fastening portion according to claim 1, wherein the splicing yarn is made of a 20 denier polyurethane yarn covered with a 70 denier nylon yarn.   A sock consisting of a tightening part of 10 cm or more above the heel part is knitted on a knitting machine about twice as long, and no rubber thread is inserted into the tightening part. Using a thin polyurethane thread, arrange several courses of the front course in the knitting direction of the tightening part, and then arrange several courses of the back course to form a modified pearl knitting structure. Tightening of socks characterized by the fact that the uneven structure of the uneven bellows formed in the shape of wrinkle prevents the slipping off by allowing the elongation in the wale direction to expand and contract at an elongation of 30% or more near zero load Manufacturing method of appendix.   The method for manufacturing a sock fastening portion according to claim 4, wherein the number of knitting needles of the knitting machine is 176.

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