JP2005240234A - Stocking-knitting machine and stockings - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stocking-knitting machine capable of producing stockings not containing streak even when an elastic yarn such as rubber yarn is inserted and knitted into whole stockings excluding heel and tiptoe and capable of being knitted without cutting the elastic yarn and to provide stockings knitted by the stockings-knitting machine, not containing streak, though the elastic yarn such as rubber yarn is inserted into whole stockings excluding heel and tiptoe. <P>SOLUTION: The stocking-knitting machine is obtained by further installing a raising switch cam at a position located in the rear of the direction in which needle of a raising switch cam of a conventional stockings knitting machine rotates and capable of raising the needle to a tuck level by an internal cam. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sock knitting machine and a sock knitted by the sock knitting machine, and more particularly, to a sock knitting machine in which a tightening pressure is changed according to a foot region and a sock knitting machine capable of knitting the sock.

  Many so-called compression socks that change the tightening force of the sock depending on the part of the foot covered with the sock are currently on the market. This pressure sock is knitted by inserting a rubber thread between the mouth and the ankle or between the ankle and the front of the toe.

  Japanese Patent Laid-Open No. 10-251902 is a patent document relating to the pressure socks.

The invention described in Japanese Patent Application Laid-Open No. 10-251902 is to change the tensile force of rubber knitted into socks according to the part of the foot.
Japanese Patent Laid-Open No. 10-251902

  If a rubber thread is inserted and knitted into the entire sock except the heel and toe parts to produce a pressure sock, the rubber thread cannot be knitted in one course at the ankle part, resulting in streaking. Due to such appearance problems, the product value of such a product is significantly reduced. More specific description will be given below.

  FIG. 4 is a front view of the sock showing the names of the respective parts. Socks are generally roughly divided into three parts: a mouth rubber part A, a leg part B, and a foot part C.

  The lip rubber portion A is knitted with rubber knitting or flat knitting with rubber yarn inserted to increase stretchability and to prevent the sock from slipping off.

  Legs B are knitted with an arbitrary structure such as flat knitting.

  The foot part C is further divided into a heel part C1, an instep part C2, a sole part C3 and a toe part C4.

  The heel part C1 and the toe part C4 are knitted by reducing and increasing the number of times around the gore line. The instep C2 and the sole C3 are knitted with an arbitrary structure such as flat knitting.

  When the sock is knitted with a circular knitting machine, when the knitting is transferred from the leg B to the heel C1, the cylinder is knitting while the cylinder is rotating in the leg. Will be organized. In other words, the long bat needle on the half circumference of the cylinder (opposite to the keyway of the cylinder) is raised to the non-knitting level (upper surface of the center cam) and raised by the switch cam. By knitting, the needle is picked up and the needle is lowered and the number of eyes is increased by lowering the needle.

FIG. 2 is an exploded view of the cam box showing the reciprocating rotational position of the needle during the above-described buttock knitting. The long bat needle in the tack position is raised to the non-knitting level (upper surface of the center cam 11) along the direction indicated by the arrow A by the raising switch cam 1 and performs forward and reverse reciprocating rotation in the range of the dotted line B. (Dotted line B represents the position of the bat). On the other hand, the short bat needle has a bat height lower than that of the long bat needle, so that it does not move up to the non-knitting level by the raising switch cam 1 and performs forward and reverse reciprocating rotation within the range of the dotted line C (the dotted line C indicates the butt needle). Represents the position).
On the other hand, FIG. 3 is a cam box development view showing the rotational position of the needle when the sock is knitted while supplying the rubber thread.

  The dotted line D in the figure indicates the position of the bat. After flat knitting on the left mountain 4, the needles pass on the inner cam 5 at the tack level, and all the needles are once lowered by the rubber split cam 3 and then raised to the tack level every other one by the selector jack below. Needle is selected for needles that remain at the needle and welt level. In the figure, D1 is the trajectory of the needle raised to the tack level, and D2 is the trajectory of the needle placed at the welt level.

  When the needle raised to the tack level is lowered to the welt level by the lath degree crest 6, the rubber yarn is supplied from the rubber yarn path 2 and the rubber yarn is inserted.

  However, after knitting from the rubber band part to the leg part by the knitting method as shown in FIG. 3, it is not possible to enter the knitting of the buttocks as it is with a normal circular knitting machine. This is because the needle once raised to the tack level by the selector jack in order to insert the rubber thread as described above is also lowered to the welt level by the lath degree crest 6, and eventually all the needles are lowered to the welt level. Therefore, all the needles pass under the raising switch cam 1 as shown in FIG. In other words, the long bat needle cannot be pulled up to the non-knitting level by the raising switch cam 1 which is necessary when entering the knitting of the buttocks.

  In order to avoid such inconvenience, it is only necessary not to insert the rubber yarn in one course immediately before entering the knitting of the buttocks. Then, after flat knitting by the left degree mountain 4, the needle passes through the inner cam 5 at the tack level and is raised as it is to the switch cam 1 (that is, there is no rubber thread insertion process). This is because there is no lowering of the needle by the rubber dividing cam 3 and no lowering of the needle by the lath degree crest 6).

  And in this case, the insertion of the rubber thread is completed in the knitting two courses before entering the knitting of the buttock, and the buttock is knitted with the rubber thread cut once and the rubber thread clamped between the rubber threads, and the knitting of the buttock is finished. After that, the knitting will be carried out while inserting the rubber thread again. (The need to cut the gobo thread is because the cylinder rotates in one course just before the buttock knitting. Because you ca n’t keep it).

  Then, the rubber thread is not inserted in one course immediately before entering the knitting of the buttock, and this appears as a streak on the appearance of the sock. And a product with such a streak is treated as a defective product with virtually no commercial value.

  Therefore, the present invention provides a sock knitting machine that does not contain a streak even if elastic yarn such as goosenose is inserted and knitted into the entire sock excluding the heel and toe, and that can be knitted without cutting the elastic yarn. And a sock knitted by the sock knitting machine, that is, a sock that does not have a muscle even though elastic yarn such as garment is inserted in the entire sock except the heel and toe portions For the purpose.

  In order to solve the above-mentioned problem, the sock knitting machine according to the present invention is a rear position of a raising switch cam in a normal sock circular knitting machine, in a position where the needle rotates, and a position where the needle can be pulled up to a tack level by the inner surface cam. Furthermore, a raising switch cam was provided. The following describes how the sock knitting machine according to the present invention configured as described above solves the problems with reference to the drawings.

  FIG. 1 is an exploded view of a cam box of a sock knitting machine according to the present invention.

  In the present invention, a raising switch cam 7 is further provided at a position behind the normal raising switch cam 1 and at a position where the needle can be pulled up to the tack level by the inner surface cam. Therefore, the needle pulled up to the tack level by the inner surface cam 12 after passing through the insertion process of the elastic thread such as the gossip thread can enter the buttocks knitting process by the raising switch cam 7 (dotted line D3 indicates the bat Shows the position).

  That is, the long bat needle is raised to the non-knitting level (the upper surface of the center cam) as shown by the dotted line E1 in the figure, while the short bat needle passes without being acted by the raising switch cam 7 and is at the level of the dotted line E2. (E, E1, E2 in the figure represent the position of the bat).

  An elastic yarn such as a goose yarn when the heel portion is knitted is held by a needle. In other words, it is repeatedly pulled or shrunk as the cylinder rotates forward and backward. There is no need to cut the elastic yarn such as the goji yarn once because the insertion of the elastic yarn such as the goji yarn is continued until one course just before the buttock knitting. This is because there is no process of rotating the cylinder while holding the elastic yarn. Then, after insertion of the buttock knitting, insertion of a normal elastic yarn such as a normal cocoon yarn starts again. In other words, it is possible to insert and knit the elasticity of the goose string or the like into the entire sock except the heel and toe parts without cutting the elastic thread such as the goose string.

  In this way, according to the sock knitting machine according to the present invention, it is possible to enter the knitting of the buttock as it is while inserting the goose string into the course immediately before the buttock knitting. In other words, it is possible to manufacture a sock that does not contain a streak even if the thread is inserted and knitted into the entire sock excluding the heel and toe.

    Hereinafter, preferred embodiments of the invention will be described.

  The sock knitting machine according to the present invention has a cam box at a position separately from a normal raising switch cam, in the rear of the raising switch cam in the direction in which the needle rotates, so that the needle can be raised to the tack level by the inner cam. Further, it has the same structure as a normal sock circular knitting machine except that a raising switch cam is provided. Therefore, the raising switch cam newly provided in the cam box will be described below.

  As shown in FIG. 1, the raising switch cam 7 that characterizes the present invention is on the left side of the normal raising switch cam 1 (the rear side in the direction in which the needle rotates). It is provided at a position where it can be raised to the level.

  It is preferable to provide a slightly longer length than the raising switch cam 1. This is for surely raising the long bat needle to the non-knitting level.

  The height of the raising switch cam 7 is set to the same height as that of the ordinary raising switch cam 1. That is, it is a height that allows the short bat needle to pass through and acts only on the long bat needle.

  The sock according to claim 2, wherein the knitting machine configured as described above is knitted while inserting an elastic yarn such as a goosenose thread into portions other than the heel portion and the toe portion. At this time, the tightening pressure is changed according to the part of the foot. That is, a thick part such as a calf reduces the tightening pressure, and a thin part such as an ankle increases the tightening pressure.

  Specifically, it is changed according to the tension of the elastic yarn, that is, the feeding amount. That is, a large amount of elastic yarn is fed in a thick portion and a small amount is fed in a thin portion.

The cam box expanded view of the sock knitting machine which concerns on this invention. The cam box expanded view which shows the reciprocating rotational position of the needle at the time of buttock knitting. The cam box expanded view which shows the rotational position of the needle in the case of knitting socks, inserting a rubber thread. The front view of the sock which shows the name of each part. The front view of the socks which showed the course typically.

Explanation of symbols

7. Raise switch cam 12. Internal cam

Claims (2)

  An elastic yarn is provided by providing a cam box further provided with a raising switch cam 7 at a position behind the raising switch cam in the direction in which the needle rotates and where the inner cam 12 can raise the needle to the tack level. A sock knitting machine that can be knitted in the buttock without cutting it.   A sock knitted by the sock knitting machine according to claim 1, wherein an elastic thread is inserted into the entire sock except for the heel part and the toe part.

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