KR20110060908A - Method for the production of a contoured article with hemmed flaps of knitting, on a circular knitting machine for knitwear, hosiery or the like - Google Patents

Abstract

The present invention relates to a method for producing an article having a shape having a flap of a knitted fabric wound in a circular knitting machine for knitwear, hosiery, etc., firstly, the flap of the article of the article having a shape to be manufactured 3a. Providing a double folded hem 2 designed to conceal 3b, 4a, 4b), and providing a flap of the knitted fabric of the article as a continuation of the double folded hem 2, Provided are methods for making shaped articles having flaps of knitted fabric in circular knitting machines for knitwear, socks, and the like.

Description

FIELD OF THE PRODUCTION OF A CONTOURED ARTICLE WITH HEMMED FLAPS OF KNITTING, ON A CIRCULAR KNITTING MACHINE FOR KNITWEAR, HOSIERY OR THE LIKE}

FIELD OF THE INVENTION The present invention relates to a method for the production of contoured articles with flaps of knitted hemmed in circular knitting machines for knitwear, socks, and the like.

It is known to provide knit items using tubular knits made using medium diameter circular knit machines or circular hosiery knit machines for knitwear.

This method of production follows, for example, in the production of apparel items such as body suits, underpants, jackets or bras without lateral seams, having integrally tubular parts and axial ends of the tubular part. An article having a tubular portion with a flap of a knitted fabric protruding from either or both is produced using a circular knitting machine. At that time, the flap of the knit projecting from the seam end of the tubular portion is generally used to provide a shoulder strap in the case of a body suit, jacket or bra, or to provide a crotch area in the case of underpants, or When applied, they are joined by a sewing operation to provide a button or other detachable connection means for the crotch region.

More specifically, articles designed for the production of underpants generally use only the needles of the cylinders of the circular knitting machine to initially provide a folded double hem, with cylinders and dials or with cylinders and beds. In the case of a knitting machine the hooks of the knitting machine's dials or the needles of the beds are also used in the production of the folded double hem to provide the tubular part of the article, and finally, as an extension of the two diagonally opposite areas of the tubular part. Produced by providing a knit flap. The folded double heme is typically provided by operating the needle cylinder of the knitting machine in a continuous rotational movement, ie in the same direction of rotation, as in the production of the tubular portion. The flap of the two knits can be produced by operating the needle cylinder of the knitting machine to continuously rotate or alternately rotate about its own axis. In the first case, the yarn used to provide a row of knitted fabric constituting the flap of the two knitted fabrics is cut during the production of the article at the lateral end or hem of the flap of the knitted fabric, or between the flaps of the two knitted fabrics. It remains floating in the area located at and is cut afterwards. This technique inevitably results in the presence of a cut thread on the side that borders the flap of the knitted fabric, and subsequent follow-up work for finishing the item so that it is acceptable from an aesthetic point of view. do.

In the second case, due to the periodic reversal of the direction of rotation of the needle cylinder, at the lateral end of the flap of the knit, the need to cut the thread is avoided, and with respect to the lateral end of the flap of the knit, the flap of the knit It tends to curl up near the end, but achieves a markedly improved finish. For this reason, even in this second case, it is desirable to do subsequent work on the item to hide the flap of the knit fabric.

Articles for the production of jackets or bras generally have four knitted flaps that are designed to be joined later by sewing to provide a folded double hem and / or tubular section, and then to provide two shoulder straps of the jacket or bra Produced by producing Also in this case, the flap of the knitting as a continuous portion of the tubular portion continuously rotates the needle cylinder of the knitting machine in one rotational direction or alternately rotates the rotation around the needle cylinder itself axis at the lateral end of the flap of several knitted fabrics. It can be provided by reversing the direction of rotation. Depending on the technique used, the knit flap does not cut or cut the thread at its lateral ends, as already described above for the production of underpants.

Articles for the production of body suits generally provide a pair or two pairs of knit flaps, depending on whether the manufacturing starts from the lower or upper part of the item, providing a tubular portion and two pairs or a pair of knits. Produced by forming a flap of the ends. The two knit flaps of each pair are designed to be joined by sewing to provide the crotch and two shoulder straps of the body suit, respectively. Even in this case, the flap of the knitted fabric may be provided by continuously rotating the needle cylinder of the knitting machine, or by alternating rotational movement around the needle cylinder itself axis, so that the thread is cut at the lateral end of the flap of the knitted fabric. Do not cut or cut.

In either case, the sides of the knitted flap delimiting the opening into which the user's leg, arm or neck is inserted in the finished item are concealed to hide the cut thread at that side or to prevent the flap of the knitted flap from rolling up. You have to work.

The tanning operation is to sew or glue the boundary to be produced separately.

Clotting operations require time and labor intervention, which has the disadvantage of significantly affecting the overall production cost of such items.

GB-1.495.744 describes a method of directly hiding a flap of a knitted fabric during the production of the article. This method is substantially effective in order to make the thread float for several stitches, adjacent to the side to be hidden, while the needles form several rows of knits in which the rows of knits forming the knit alternate. The needle is removed from the knitting operation. In this way, the knitted fabric formed by the needle when it is actuated is folded or rolled up to provide the hem of the flap of the knitted fabric. By this method, the folding or curling of the knit to form the hem occurs during the formation of the knit at right angles to the direction of the row of the knit, ie the extension of the row of the knit. By this method, it is possible to provide a flawed knitted flap by changing the needle that floats the thread and the number of needles used to form the flap of the knitted fabric.

However, this method limits the possibility of selecting the needles used to form the heme to obtain the decoration of the shaped part or heme, due to the work required to float the thread during the formation of the rows of several knits. There is a disadvantage.

Moreover, in this method, it is preferable that the yarn to be suspended is elastically extendable, but this reduces the stability of the size of the heme over time, in view of the simplification of the formation of the heme.

The object of the present invention is to provide for knitwear, hosiery and the like used for the production of knitwear, hosiery and the like, which eliminates the above mentioned disadvantages and can provide a completely satisfactory result both in terms of functionality and aesthetics. It is to devise a method for producing shaped articles having flaps of knitted fabric directly wound in a circular knitting machine.

Within this goal, the object of the present invention is to be used to produce articles of knitted fabrics, in particular, such as underpants, body suits, bras, jackets, etc., which do not require stabbing at the sides delimiting the openings of the articles of knitted fabric. It is to suggest a way to get goods that can be.

Another object of the present invention is to propose a method capable of reducing the overall production cost of knitted articles such as underpants, body suits, bras, jackets and the like.

Another object of the present invention is to propose a method that can be used in conventional knitting machines for knitwear or socks.

These and other and other objects, which will become more apparent below, are directed to a method for producing a contoured article with flaps of knitted fabric in a circular knitting machine for knitwear, hosiery, and the like. A method of manufacturing a flap comprising: firstly, providing a double folded hem designed to conceal the flap of the knit shaped article to be produced, and the flap of the knit as an extension of the double folded hem A method for making a shaped article with flaps of a knit knitted fabric in a circular knitting machine for knitwear, socks, and the like, comprising the steps of providing.

Further features and advantages of the invention will become more apparent from the description of the preferred but not exclusive embodiments of the method according to the invention, which are illustrated by way of non-limiting example in the accompanying drawings.

1 is a schematic diagram of a production stage of an article for providing an article of a crocheted form.
2 is a schematic view of an extended flat plate that is an article at the end of production of the article.
3 is a detailed enlarged cross-sectional view of FIG. 2 taken along longitudinal line III-III.
4 is a detailed enlarged cross-sectional view of FIG. 2 taken along the longitudinal line IV-IV.
5 is a schematic perspective view of the article as it emerges from the knitting machine.
6 is a schematic perspective view of a jacket provided by the article shown in the preceding figure.

Referring to the drawings, the method according to the invention substantially provides a folded double hem 2 which is designed to conceal the flaps 3a, 3b, 4a, 4b of the knitted article 1 shaped to be produced. And a flap 3a, 3b, 4a, 4b of the knitted piece of the article 1 as an extension of this folded double heme 2.

FIG. 1 is a schematic drawing which does not represent the actual state of the article 1 but is considered useful for describing various stages of the production of the article 1. Indeed, there is no area indicated by the letters A, B, C, D and laterally bounded by the sides of the flaps 3a, 3b, 4a, 4b of the knit, which is the flap 3a, This is because the sides of 3b, 4a, 4b are directly connected to the folded double heme 2, as shown in FIG.

In more detail, in particular with reference to FIG. 1, the method according to the invention is adapted to be used to provide a loop of knitted fabric that laterally borders at least the flaps 3a, 3b, 4a, 4b of the knitted fabric to be hid. With every needle of the needle cylinder of the knitting machine being designed, it comprises a step (X) for providing a double folded edge (2). Thereafter, step Y for providing the flaps 3a, 3b, 4a, 4b of the knitted fabric is performed to form the knitted fabric as a continuation of the last row of the knitted double hem 2, by row of the knitted fabric. To this end, the number of needles moved to knit in one or more feeds or drops of the knitting machine is gradually increased. Thus, the article 1 is completed in a manner known per se and emerges from the knitting machine.

The folded double hem 2 is a cylinder and bed or a circular knitting machine with a dial, which simply uses a needle received in the needle cylinder of the knitting machine, or a hook received in a dial or bed upwardly coaxial with the needle cylinder or By also including a needle, it can be provided in a manner known per se.

In the first case, the folded double heme 2 produces its own loop by producing a certain number of loops by a few needles that alternate with other needles temporarily excluded from the knitting operation and retain the loops of the last formed knitting. Obtained in a known manner. These needles, which are temporarily excluded from the knitting operation, are the loops of the knitted fabric formed above after the other needle has produced a predetermined number of rows of knitted fabric that can be varied according to the height desired for the folded double hem. In order to form a row of knitted fabrics in which several loops, which are loops formed by the needles which were previously excluded from the knitting operation, are returned to the knitting operation with other needles. By this combination, folding occurs parallel to the extension of the row of knitted fabrics, and the overlap of the knitted fabrics is formed by a needle which has not been excluded from the knitting operation, thereby forming a folded double hem 2.

For example, in this first case, the initial part of the knitting operation can be performed by a 1: 1 drop of needles alternated in two drops or feeds of the knitting machine. Then, the knitting of the plain knitting is performed by all the needles, in order to form a folded double hem, a 1: 1 selection of the needles (for every two needles, one needle acts and one needle Proceeds to 3: 1 selection of needles (for every four needles, three needles are knit and one needle is excluded from the knit operation). The formation of the rows of knits by this needle selection is continued for the number of rows of knits needed to obtain the desired height for the folded double hem 2, and then the production of the flats by all the needles is resumed. Of course, this is only one example of a practical embodiment of the folded double hem 2 using only the needles of a needle cylinder of a knit, among many possibilities well known to those skilled in the art.

In the second case, at the beginning of the knitting process, several rows of knits are formed, and during formation of one or more of the rows of these knits, a loop of several knits is placed between the working needles disposed within the needle cylinder of the knitting machine. By inserting the hook or needle, it is engaged by the hook of the dial or the needle of the bed. The hook or needle is then stored into the dial or bed to maintain a loop of the knitted fabric engaged by the hook or needle, with some or all of the needles of the cylinders of the knitting machine being joined by the hooks or beds of the dial In order to produce a predetermined number of rows of knitted fabrics as a continuation of the loop of the knitted fabric, the knitting work is moved. Thereafter, the hook or needle is extracted from the dial or the bed and inserted between the needles of the cylinder, so that the hook or the needle, after the end of the row of a certain number of knits, loops of the knitted fabric held in front by the hook or needle. Can be combined with loops of rows of two knits. In this way, a fold occurs parallel to the extension of the row of the knit, and the overlap of the knit is formed by the needle during the engagement performed by the hook of the dial or the needle of the bed, so that the folded double hem 2 Is formed.

For example, in this second case, the initial portion of the knitting operation can be provided by a 1: 1 drop of needles alternated in two drops or feeds of the knitting machine. The two rows of flat knit are then formed by all the needles in the cylinder, and then the hook of the dial or the needle of the bed is loaded by 1: 1 or 1: 3 selection for the rows of knitted fabric, and then the hook Or the needle is enclosed in a dial or bed to maintain a loop of stitched knit. Continue knitting operation by the needle of the cylinder of the knitting machine, and after the predetermined number of rows of knitting necessary to obtain the height required for the folded double hem 2, proceed with the unloading of the hook of the dial or the needle of the bed, The loops of the knits released by the hooks of the dials or the needles of the beds are joined with the loops of the knits of the rows of knits being produced. Of course, this also, among many possibilities well known to those skilled in the art, of the practical embodiment of the folded double hem 2 using the needle of the cylinder and the needle of the hook or bed of the cylinder and the needle of the cylinder of the circular knitting machine with the cylinder and the bed. It is just an example.

After the execution of the folded double heme, it proceeds to step Y, where in step Y, a flap of knitted fabric of the article is provided, the number of flaps can vary depending on the item to be produced.

For example, if it is necessary to provide an article aimed at the production of a pair of underpants, two groups of needles in which a flap of two shapes are placed in two diagonally opposite sectors of the needle cylinder The number of needles produced by and moved for the knitting operation varies depending on the shape of the flap of the knitted fabric to be provided.

If, instead, it is necessary to provide an article aimed at the production of a jacket or a bra, as in the case described, in placing the article in the needle cylinder of the knitting machine during the production of the article, it is opposed to each other two to one diagonal plane of the needle cylinder. Four flaps 3a, 3b, 3c, 3d arranged or more precisely two pairs of knit flaps are produced.

If instead it is necessary to provide an article aimed at the production of body suits, when the production of the article starts from the lower end, it is possible to produce two knitted flaps, as in the case of the production of the underpants, or to produce the article. Starting from this upper end, it is possible to produce four knit flaps or, more precisely, two pairs of flaps, as in the case of the production of a jacket or bra.

Each flap of the knit is produced by periodically reversing the direction of rotation of the needle cylinder of the knitting machine at the end of the production of the row of knits by a group of needles received in the sector of the needle cylinder. The number of needles moved to make the knitting operation at each instant during the production of the rows of knitted fabrics may vary depending on the shape required for the flap being provided and any design or aesthetic effect to be obtained at the flap of the knitted fabric. have.

It should be noted that during the production of the flap of the knitted fabric, a loop of new knitted fabric is gradually provided to increase the width of the sector containing the needle used for the knitting operation. This means that at each moment, the needle used to produce the folded double heme 2 and holding the loop of the last knitted fabric formed out of the knitting operation is returned to the knitting operation. In this way, this finally formed loop of knitted fabric is knitted with a flap of the subsequent knitted fabric disposed at the lateral end of the flap of the knitted fabric, upon resumption of the knitting operation by the corresponding needle, followed by the folded double hem 2. Is moved along the lateral profile of the knit flap.

Thereafter, the article is completed by producing a portion of the tubular knitted fabric in a manner known per se, for example using all the needles of the knitting machine, and separated from the needle to be removed from the knitting machine.

It should be noted that the portion of the tubular knitted fabric produced after the provision of the knitted flap may have a different shape depending on the expected destination of the article. Thus, for example, if an article is designed to be used for the production of a pair of underpants, such tubular portions may be suitably elastic by inserting elastically deformable threads to provide a portion with a simple thickness and the hem of the underpants. And end portions provided here as folded double hems.

If the article is instead designed for use in the production of a bra, the portion of the tubular knit may simply consist of a folded double hem.

As in the illustrated embodiment, if the article 1 is designed to be used for the production of a jacket, a portion of the tubular knitted fabric 5 is produced after the production of the flaps 3a, 3b, 4a, 4b. Proceed to step Z. Step Z may comprise a final step Z, if necessary, in which the final folded double heme 6 is provided in a manner similar to that described above.

If the article is designed to be used to produce a bodysuit, then after the provision of the tubular portion and before unloading of the article from the knitting machine, when production of the article begins from the upper end, flaps of the two knitwear to provide the crotch of the bodysuit are provided. This can be produced, or when the production of the article starts from the lower end, a flap of four knits or more precisely two pairs of flaps can be produced to provide a shoulder strip.

Adapting the length of the initially provided folded double hem 2 to the full length of the lateral circumference of the flap 3a, 3b, 4a, 4b of the knitted double hem 2 gradually joined during the production of the article. To this end, the length of the loops of the knitted fabric in the production of the double folded edges can be appropriately increased to increase the longitudinal stretch of the folded double hem 2 and / or use an elastic yarn having the same purpose. It should be noted that it can.

The article 1 provided by the method according to the invention comprises a flap 3a, 3b, 4a, 4b of the knitted fabric projecting from at least one of the two axial ends of the tubular part 5, 6. It has a tubular portion 5, 6 of the knit, and the sides of the tubular portion 5, 6 have a folded double heme 2 that is part of the same article and does not require any additional work to be applied to the article.

Moreover, due to the fact that the folded double hem 2 consists of rows of knitted fabrics that are continuously produced and that folds along a direction parallel to the extensions of the rows of knitted fabrics, it is possible to provide letters or designs during the formation of the hem. Can be.

In order to provide a row of knitted fabrics that join the two ends of the folded double hem 2, according to the method according to the invention there is no need to use an elastic thread, and a substantially non-extensible thread can be used, so that the hem There is an advantage in aesthetics and stability.

Another advantage of the method according to the invention is that by using various needle selections in a known manner, it is possible to use a heme with various aesthetic shapes, which limits the limitations arising from the need to provide floating stitches. There is a limitation, however, in the method described in the prior patent GB-1.495.744.

The knitted items are completed by mutually joining the ends of the opposite flaps, for example by sewing.

For example, in the case of a pair of underpants, the ends of the two flaps are joined to provide the crotch of the underpants. In the case of body suits, the ends of the four upper flaps are joined two by two, providing a shoulder strip of the body suit, and a button or other detachable connecting means of known type is provided with two lower parts for closing the crotch of the body suit. Applied to the end of the flap. As in the illustrated embodiment, in the case of the jacket 7, or in the case of a bra, the ends of the four flaps 3a, 3b, 4a, 4b are joined two by two, providing a shoulder strip of the jacket or bra do.

Indeed, the method according to the invention fully achieves its intended goal, which is directly concealed during production and is completely satisfactory from an aesthetic point of view and a functional point of view, which does not require subsequent work for the finishing of the knitted item. It is known that it is possible to provide an article having a shape with a flap of a knit fabric.

The methods devised above are capable of various modifications and changes, all such modifications and variations being within the scope of the appended claims, and all details being further replaced by other technically equivalent elements.

In practice, the materials and sizes used can be anything depending on requirements and skill levels.

The content of Italian Patent Application No. MI2008A001687, to which this application claims priority, is incorporated herein by reference.

Where reference is made to the technical features referred to in any claim, such reference numbers have been included for the sole purpose of increasing the understanding of the claims, and therefore such reference numbers are exemplified by such reference numbers. There is no limiting effect on the interpretation of each member identified as.

2: double folded hem
3a, 3b, 4a, 4b: flap of knitted fabric
5, 6: tubular part

Claims (6)

A method for producing a contoured article having flaps of knitted fabric in a circular knitting machine for knitwear, socks, and the like,
First, providing a double folded hem 2 designed to hide the flaps 3a, 3b, 4a, 4b of the knitted fabric of the article 1 shaped to be manufactured, and
Providing the flaps 3a, 3b, 4a, 4b of the knitted fabric of the article 1 as a continuation of the double folded hem 2
A method for manufacturing an article having a shape having a flap of a knitted fabric, wound in a circular knitting machine for knitwear, socks, and the like, comprising: a. The method of claim 1,
At least by all the needles of the needle cylinder of the knitting machine designed to be used for the feeding of the loops of the knitting sideways delimiting the flaps 3a, 3b, 4a, 4b of the knitted fabric to be submerged of the article 1. Providing a double folded hem (X),
The flap 3a, 3b of the knitted fabric by progressively increasing the number of needles moved in the row to make the knitting operation as a continuation of the last row of the knitted fabric of the double folded hem 2 row by row. (Y), providing 4a, 4b),
Completing the production of the article 1 (Z, Z '), and
Unloading the article 1 from the knitting machine
Further comprising, a method for producing an article having a shape having a flap of the knit knitted in a circular knitting machine for knitwear, socks and the like. The method according to claim 1 or 2,
The double folded hem (2),
Holding the loop of the knit of one of the first rows of knit formed by the needle by a needle of a bed or a hook of a dial of the knitting machine inserted between working needles in the needle cylinder ,
Producing, by the needle, a predetermined number of rows of the knitted fabric as a continuation of the loop of the knitted fabric initially formed, and
Looping the loop of the knitted fabric held in front by the hook of the dial or the needle of the bed with a loop of the rows of knitted fabric behind the end of the predetermined number of rows of the knitted fabric
Provided by
A method for making shaped articles having flaps of knitted fabric in a circular knitting machine for knitwear, socks, and the like. The method according to claim 1 or 2,
The double folded hem (2),
Excluding from the knitting operation a portion of the needle alternating with the needle held in operation,
Maintaining a loop of the last knitted fabric formed by the needle that is excluded from the knitting operation,
Providing a predetermined number of loops of the knitted fabric by the needle held in operation; and
Returning the needle, previously excluded from the knitting operation, to the knitting operation to form one or more rows of the knitting with the needle held in operation previously.
Provided by,
A method for making shaped articles having flaps of knitted fabric in a circular knitting machine for knitwear, socks, and the like. The method according to any one of claims 1 to 4,
The flap 3a, 3b, 4a, 4b of the knitted fabric periodically rotates the direction of rotation of the needle cylinder of the knitting machine at the end of production of the row of the knitted fabric by the group of the needles received in the sector of the needle cylinder. A method for producing a shaped article having flaps of a knitted knit in a circular knitting machine for knitwear, hosiery, etc., produced by reversing the pressure. A tubular portion 5, 6 of a knitted fabric having flaps 3a, 3b, 4a, 4b that protrude from at least one axial end,
The flap 3a, 3b, 4a, 4b of the said knitted fabric has a hem integrally provided with the flap 3a, 3b, 4a, 4b of the said knitted fabric along a circumferential surface,
The hem consists of a double folded hem (2),
The double folded hem 2 consists of rows of knitted fabrics carried out in series, and is folded along a line arranged parallel to the rows of the knitted fabric constituting the double folded hem 2,
In particular, knitted fabrics for the manufacture of knitted articles of apparel such as underpants, body suits, jackets, bras and the like.

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