EP1584720B1 - Method of linking two knit fabrics - Google Patents

Description

The invention relates to a method for joining two knitted parts at their upper edges on a flat knitting machine with at least two opposing needle beds.

Such connection tasks of two knitted parts occur, for example, in tubular round finished knits in the region of the shoulders. But also in other clothing parts as well as in technical crocheted such compounds of knitted fabric at the upper edges are required.

The previously used to connect the knitted parts Kettelverfahren, as used for example in the DE 43 23 670 A1 are described, are relatively time consuming and thus increase the production of the overall knitted fabric.

From the DE 197 04 666 A1 is a method for tying the sleeves to a front and back part and the connection of front and back part outside the shoulder line by Maschenumhänge- and Kettelvorgänge known, but which is also expensive.

The present invention has for its object to propose a method for joining two knitted parts at the upper edges, which requires only short machine running times and results in a high-quality connection.

1. a) Anordnen der Maschen des ersten Gestrickteils auf dem ersten Nadelbett und der Maschen des zweiten Gestrickteils gegenüberliegend auf dem zweiten Nadelbett,
2. b) Umhängen aller Maschen des zweiten Gestrickteils auf leere Nadeln des ersten Nadelbetts,
3. c) Umhängen mindestens einer Randmasche des ersten und/oder zweiten Gestrickteils auf gegenüberliegende Nadeln des zweiten Nadelbetts,
4. d) Versatz des zweiten Nadelbetts, bis die mindestens eine umgehängte Randmasche des ersten und/oder zweiten Gestrickteils der mindestens einen nächstfolgenden Randmasche des ersten und/oder zweiten Gestrickteils des ersten Nadelbetts gegenüberliegt,
5. e) Umhängen der mindestens einen nächstfolgenden Randmasche des ersten und/oder zweiten Gestrickteils auf die mindestens eine Randmasche auf dem zweiten Nadelbett,
6. f) Abstricken der Maschen auf dem zweiten Nadelbett und dadurch Bildung mindestens einer Kettelmasche zur Verbindung der beiden Gestrickteile,
7. g) Versatz des zweiten Nadelbetts, bis die mindestens eine Kettelmasche der neuen Randmasche des ersten und/oder zweiten Gestrickteils auf dem ersten Nadelbett gegenüberliegt,
8. h) Umhängen mindestens einer Randmasche des ersten und/oder zweiten Gestrickteils des ersten Nadelbetts auf die mindestens eine Nadel mit der Kettelmasche des zweiten Nadelbetts,
9. i) Wiederholung der Schritte f) bis h).

The object is achieved by a method of the type mentioned, which is characterized according to the invention by the steps:

1. a) arranging the stitches of the first knit part on the first needle bed and the stitches of the second knit part opposite on the second needle bed,
2. b) transferring all stitches of the second knit part to empty needles of the first needle bed,
3. c) transferring at least one edge stitch of the first and / or second knit part to opposite needles of the second needle bed,
4. d) offset of the second needle bed until the at least one looped edge stitch of the first and / or second knit part is opposite the at least one next edge stitch of the first and / or second knit part of the first needle bed,
5. e) transferring the at least one next edge stitch of the first and / or second knit part to the at least one edge stitch on the second needle bed,
6. f) knitting the stitches on the second needle bed and thereby forming at least one Kettel mesh for connecting the two knitted parts,
7. g) offset of the second needle bed until the at least one Kettel mesh is opposite the new edge stitch of the first and / or second fabric part on the first needle bed,
8. h) transferring at least one edge stitch of the first and / or second knitted part of the first needle bed to the at least one needle with the keying stitch of the second needle bed,
9. i) repetition of steps f) to h).

The first needle bed may be the front needle bed and the second needle bed may be the back needle bed or vice versa.

In the method according to the invention the Kettelverbindung the two knitted parts is achieved in each case with two needle movements, a Umhängeoperation and the knitting of the two edge stitches to form a Kettelmasche each. In the case of the methods according to the state of the art, in each case three needle movements are necessary for this, so that the method according to the invention gives a clear time advantage over the known methods. Further advantages result from the fact that the Kettelmaschen not be relocated itself. They are therefore not overstretched, but form an elastic connection of the two knitted parts.

The edge stitches, which are transferred to the Kettelmaschen, still have a connection to the fabric, which means that acts on them a defined peel force. Thus, the Umhängevorgang this Randmaschen is a relatively safe process.

The number of edge stitches of the first knit part, which are transferred to the second needle bed in step c), may be different than the number of edge stitches of the second knit part which are transferred to the second needle bed. This can be different optical effects of the seam of the two knitted parts are generated.

The connection seam can also be produced exclusively in one of the two knitted parts. If, for example, the formation of the connecting seam in the second knitted part takes place, then at least one edge stitch of the first knit part and then at least one edge stitch of the second knit part can be transferred to the second needle bed to a loop there and alternately between these Umhängevorgängen by knitting the edge and Kettelmaschen each be generated at least one new Kettel mesh on the second needle bed. Thus, connections such as so-called French shoulders or the like can be achieved.

The process for joining the knitted parts is a continuous process as long as the second needle bed carrying the slips can be displaced. Once the end of the displacement path of the second needle bed is reached, the at least one Kettel mesh can be transferred to the first needle bed and the second needle bed are brought to the opposite extreme offset position before the at least one Kettel mesh back hung on the second needle bed and the Abkettelvorgang continues until either the end of the offset path of the second needle bed is reached again or the two knitted parts are completely connected to one another.

Hereinafter, a connection method according to the prior art as well as three connection methods according to the invention with reference to tubular Rund-Fertiggestricken described in more detail with reference to the drawing.

Fig. 1

eine Maschenverlaufsdarstellung eines Verbindungsverfahrens nach dem Stand der Technik,

Fig. 2.1 bis 2.5

eine Maschenverlaufsdarstellung eines ersten erfindungsgemäßen Verfahrens zur Bildung der linken und rechten Schulternaht eines Schlauch-Rund-Fertiggestricks;

Fig. 3.1 bis 3.2

eine Maschenverlaufsdarstellung eines zweiten erfindungsgemäßen Verfahrens zur Bildung der linken Schulternaht eines Schlauch-Rund-Fertiggestricks;

Fig. 4.1 bis 4.2

eine Maschenverlaufsdarstellung eines dritten erfindungsgemäßen Verfahrens zur Ausbildung der rechten Schulternaht eines Schlauch-Rund-Fertiggestricks.

Show it:

Fig. 1

a stitch course representation of a connection method according to the prior art,

Fig. 2.1 to 2.5

a stitch course illustration of a first method according to the invention for forming the left and right shoulder seam of a tubular Rund-Fertiggestricks;

Fig. 3.1 to 3.2

a stitch course illustration of a second method according to the invention for forming the left shoulder seam of a tubular Rund-Fertiggestricks;

Fig. 4.1 to 4.2

a stitch course illustration of a third method according to the invention for forming the right shoulder seam of a tubular Rund-Fertiggestricks.

In Fig. 1 is a connection technology according to the prior art by means of a conventional Kettelverfahrens shown using the example of a tubular Rund-Fertiggestricks. The rear needle bed H is the second needle bed and can perform offset movements. In row R0 , the last normally formed fabric row of tubular round finished knitted fabric is shown. One part of the mesh forms the right shoulder area, one part of the mesh forms the collar and the remainder of the stitches the left shoulder area. Each second needle of a needle bed V , H is covered with a stitch, with one stitched needle of one needle bed facing an empty needle of the other needle bed.

In row R1 , the back needle bed is shifted one needle to the right. The edge stitch 74 of the fabric front is attached to the edge mesh 73 of the fabric back. In row R2 , the two stitches hanging in the needle 73 are then knitted, resulting in a stitching stitch connecting the two stitches together. In row R3 , the needle bed H is offset by two needles to the left. The Kettel mesh is transferred to the needle 72 with the edge stitch of the fabric front side. The Kettelmasche and the edge stitch of the fabric front side are knitted together and are connected to each other by the newly formed Kettel mesh.

In the known method for connecting two knitted parts so an edge mesh of the second knitted part, here knitted here the back fabric side of the left shoulder area with a Kettel mesh and then knitted a momentary edge stitch of the first knitted part, here the front knitted side of the left shoulder area with a Kettel mesh , Each time so the Kettel mesh is relocated to the respective edge mesh. The Kettel mesh is overstretched. This makes it inelastic. The enlargement also makes the transfer process more unstable. In addition, on the Kettelmasche itself no knit withdrawal acts. Also, the appearance of the seam is affected by the overstretching of Kettelmaschen.

Since stitch by stitch is stitched together by stitching, the prior art method is also very time consuming and causes corresponding costs.

In the Fig. 2.1 to 2.5 Now, a first inventive method for producing a connection of two knitted parts is shown at its upper edge. The knitted parts here are the front and back sides of the shoulder regions of a tubular round finished knitted fabric. The offset movements of the needles according to the invention with the second needle bed, which is here also the rear needle bed H executed. Of course, but could also take the front needle bed V, the role of the second needle bed or it could both needle beds are offset.

The seam is shown a mesh wide for each fabric side, but it could also be several stitches wide, which is also possible in the method according to the prior art. In each connection process a Kettelmaschenpaar is formed, but it could also be knitted several stitches per connection.

The connection of the knitted parts begins in the example shown on the left shoulder. But she could also start with her right shoulder.

Row R0 shows the last row of knit round tubular knits. Every other needle of the front and back needle bed V, H is covered with a stitch. One stitched needle has an empty needle opposite the other needle bed. In row R1, all stitches of the fabric backing are transferred from the back needle bed H to the front needle bed V. Row R01 then shows the arrangement of the stitches of the front and back portions of the shoulder regions and of the collar on the front needle bed V. The odd needles carry the stitches of the fabric back and the even needles the Mesh of the knitted front. In row R2, the rear needle bed H is then displaced to the right in its end position of the offset path. At the beginning of the joining process, the edge stitches 74 of the fabric front side and the edge stitches 73 of the fabric back side in the region of the left shoulder are transferred to the opposite needles of the back needle bed H. Both stitches are knitted, resulting in the first two Kettelmaschen, which is shown in row R3. In row R4 then begins the actual connection cycle. The rear needle bed H is offset by two needles to the left. The Kettelnadeln KN 73, 74 are opposite needles 71, 72 which carry the currently outermost loop 71 of the fabric back and the outermost loop 72 of the fabric front. The two edge stitches 71, 72 are relocated to the Kettelnadeln KN. In the row R5 , stitches are formed with the needles KN, whereby the stitches located in the hooks of the needles KN are connected to each other. The sequence shown in rows R4 and R5 is repeated until either the entire shoulder area is joined together or the rear needle bed H has reached its offset end position. If the latter is the case, the stitches of the chain needles KN are transferred to their opposite needles of the front needle bed V in row R6 . Subsequently, in row R7, the rear needle bed H is moved to its extreme end position to the right. Thereafter, the Kettelmaschen be relocated to new Kettelnadeln 45, 46 . In row R8 , the rear needle bed H is then offset by two needles to the left. The stitches of the needles 43, 44 are transferred to the Kettelnadeln KN. Subsequently, with the Kettelnadeln 45, 46 in series R9 stitches are formed, which connect the stitches, which are in the hooks of Kettelnadeln KN together.

Row R10 then shows the situation in which the left shoulder seam is completely closed. The stitches of the Kettelnadeln KN are transferred to their opposite needles of the front needle bed V. In row R11 then the rear needle bed H is brought into basic position. The outermost loop of the collar area and the two Kettelmaschen be umgehängt on the rear needle bed H. Subsequently, in row R12, the rear needle bed H is offset by two needles to the left. The Kettelmaschen KN be relocated to the extreme and the subsequent needle of the collar area. In row R13 , the rear needle bed H is brought back into the normal position and all stitches of the fabric back are transferred to the rear needle bed H.

In row R14 , stitches are then formed with the needles of the collar and the right shoulder of the back fabric side. The thread guide can thereby be positioned on the left side of the knitted fabric. In row R15 , the rear needle bed H has been offset by two needles to the right. The stitches of the fabric back are transferred to empty needles of the front needle bed V. In row R16 , the rear needle bed H is displaced to the left until it assumes its end position of the displacement path. The edge stitch 2 of the knitted front side and the edge stitch 3 of the back of the knit fabric are transferred to the opposite needles of the back needle bed H before both stitches are knitted in row R17 , whereby the first two knit stitches KN are formed.

In row R18, the rear needle bed H is offset by two needles to the right. The Kettelnadeln KN are the needles 4, 5 opposite, currently wearing the outermost 4 stitches of the fabric front and 5 of the fabric back. The two edge stitches 4, 5 are on the Kettelnadeln KN umgehängt. In row R19 , stitches are then formed with the sprocket needles, whereby the two stitches located in the hook of the sprocket knots KN are connected to each other. This process is repeated until the right shoulder seam is completed.

Overall, the method according to the invention is characterized in that the Kettelverbindung the front and rear fabric side is formed simultaneously with the mesh of the outermost edge needle of the front fabric side and the back fabric side. For the actual connection only two needle movements are necessary, whereby the machine running time compared to the method according to the prior art significantly shortened. The Kettelmaschen are not umgehängt and thus not overstretched. As a result, an elastic connection of the knitted parts can be produced. In addition, the Kettel mesh can be formed in the size that is necessary for a technically and visually high-quality Kettelverbindung. The Umhängevorgänge the knitted mesh to the Kettelmaschen are safe, as on the stitched stitches still the knitted fabric effect.

In the Fig. 3.1 to 3.2 will be opposite the Fig. 2.1 to 2.5 modified method for forming the shoulder seam of tubular Rund-Fertiggestricken described. In this joining method, the number of stitch-characterizing stitches in the fabric front side is different from that in the fabric back side. In the example shown, the connection is formed with a loop of the fabric front and three stitches of the fabric back. Row R0 shows the last stitch row of the tube round finished knitted fabric before the joining process. In row R1 are in the basic position of the rear needle bed H all stitches of the fabric back from rear needle bed H in empty needles of the front needle bed V umgehängt, resulting in the stitch pattern shown in row R01 results. The even needles carry stitches of the front fabric part and the odd needles stitches of the back fabric part. In row R2, the rear needle bed H is moved to its extreme right offset position before beginning the binding process. For this, the edge stitch 96 of the fabric front side and the three outer stitches 95, 93 and 91 of the fabric backside are transferred to the opposite needles of the back needle bed H. These four stitches are knitted in row R3, resulting in the Startkettelmaschen KN arise. One stitch is for the knit front and three stitches are for the knit back. In row R4 then begins the Verbindungsabkettelzyklus. The rear needle bed H is offset by two needles to the left. The warp needle 96 faces the outermost needle 94 of the fabric front and the warp needle 91 of the outermost needle 89 of the fabric back. The two edge stitches 89 and 94 are relocated to the Kettelnadeln KN. In row R5, stitches are then formed on all four needles of the rear needle bed H. The stitch of the needle 96 is for the fabric front and the stitches of the needles 91, 93 and 95 are for the fabric back. The sequence of rows R4 to R5 is repeated until the shoulder seam is closed or the rear needle bed H has reached the end of its offset path.

This in Fig. 3.1 to 3.2 The method shown has the same advantages as the method Fig. 2.1 to 2.5 , Also in this method, the outermost loop of the fabric front and the outermost loop of the fabric back are simultaneously transferred to the needles of the back needle bed H. However, here are these Meshes are not arranged directly next to each other, but five needle divisions are separated.

Fig. 4 now shows a connection technique for a shoulder of tubular Rund-Fertiggestricken, in which the seam runs completely on the back of the fabric. Consequently, the connection is made only on the rear needle bed H. In the example shown, the connection is formed by three adjacent stitches. The number of Kettelnadeln depends on the number of stitches, which should emphasize the Kettelverbindung.

Row R0 shows again the last knit of the round tubular finished knit before beginning the connection technique for the right shoulder. In row R1, all the stitches of the fabric back side are transferred from the back needle bed H to needles of the front needle bed V, resulting in the stitch pattern shown in row R01. The odd needles of the front needle bed V wear mesh of the fabric back and the even needles stitches of the fabric front. In row R2, the three outermost stitches of the fabric backside are transferred from the front needle bed V to the back needle bed H. Subsequently, in row R3, the rear needle bed H is offset by one needle to the right. Then, the outermost loop of the fabric front is transferred to that needle of the back needle bed H, which already carries the outermost loop of the back fabric side. In row R4, stitches are formed with the three needles of the rear needle bed 1, 3 and 5, resulting in three Kettelmaschen KN. The stitches of the needle KN1 connects the two sides of the knit and together with the needles KN3 and KN5 forms on the back needle bed H the stitches optically underlining the seam.

In row R5 the actual Kettel cycle begins. The outermost loop of the back fabric side is transferred to the innermost Knitting Needle KN5. Subsequently, in row R6, the rear needle bed H is offset by one needle to the right. With the three Kettelnadeln the rear needle bed H stitches are formed. In this case, the loop of the needle KN5 connects the two sides of the knit and together with the needles KN1 and KN3 together form the seams underlining the stitching. In row R7 then the outermost loop of the front fabric side is transferred to the outermost Kettelnadel KN1. The rear needle bed H is offset to the right by one needle, as shown in row R8. With the three Kettelnadeln stitches are formed again. The loop of the needle KN1 connects the two sides of the knit and together with the needles KN3 and KN5 together form the stitches underlining the connection. The sequence of rows R5 to R8 is repeated until the shoulder seam is closed or the end position of the displacement path of the rear needle bed H is reached.

In this method according to the invention, the outermost loop of the fabric back and the outermost loop of the fabric front side are alternately transferred to a warp needle of the rear needle bed H and a knit connection is made by knitting. Also in this method, the Kettelverbindung requires only two needle movements as in the method of the Fig. 2 and 3 , Again, the Kettelmaschen are not umgehängt and thus not overstretched. The Kettelmaschen can be formed in any size, so that an elastic and visually appealing connection.

Claims (5)

1. Method for connecting two knitted fabric parts at their upper selvages on a flat knitting machine with at least two opposite needle beds (V, H), characterized by the steps:

   a) Arranging the knit stitches of the first knitted fabric part on the first needle bed (V) and the knit stitches of the second knitted fabric part opposite to it on the second needle bed (H),

   b) Transferring all knit stitches of the second knitted fabric part to empty needles of the first needle bed (V),

   c) Transferring at least one selvage stitch of the first and/or second knitted fabric part to opposite needles of the second needle bed (H),

   d) Offsetting the second needle bed (H) until the at least one transferred selvage stitch of the first and/or second knitted fabric part of the at least one following selvage stitch of the first and/or second knitted fabric part of the first needle bed (V) is opposite,

   e) Transferring of the at least one following selvage stitch of the first and/or second knitted fabric part to the at least one selvage stitch on the second needle bed (H),

   f) Casting off the knit stitches on the second needle bed (H) and thereby forming at least one linking stitch (KN) to connect the two knitted fabric parts,

   g) Offsetting the second needle bed (H), until the at least one linking stitch (KN) of the new selvage stitch of the first and/or second knitted fabric part on the first needle bed (V) is opposite,

   h) Transferring at least one selvage stitch of the first and/or second knitted fabric part of the first needle bed (V) to the at least one needle with the linking stitch (KN) of the second needle bed (H),

   i) Repeating steps f) to h).
2. Method according to Claim 1, characterized by, that the number of selvage stitches of the first knitted fabric part that are transferred to the second needle bed (H) in step c), is different than the number of selvage stitches of the second knitted fabric part, which are transferred to the second needle bed (H).
3. Method according to claim 1 or 2, characterized by, that the joining seam is created exclusively in one of the two knitted fabric parts.
4. Method according to Claim 3, characterized by, that for creating the joining seam in the second knitted fabric part alternating at least one selvage stitch of the first knitted fabric part and then at least one selvage stitch of the second knitted fabric part is transferred to the second needle bed (H) to a linking stitch (KN) that is located there and between these transfer processes by casting off the selvage stitch and linking stitches respectively at least one new linking stitch (KN) is created on the second needle bed (H).
5. Method according to one of claims 1 to 4, characterized by, that after reaching the end of the racking path of the second needle bed (H), the at least one linking stitch (KN) is transferred to the first needle bed (V), and the second needle bed (H) is brought into the opposite outermost racking position, before the at least one linking stitch (KN) is transferred back to the second needle bed (H) and the chaining off process is continued.

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