DE1204771B - Circular knitting machine - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

D 04 b

German class: 25 a-27

St17218 VII a / 25 a
December 12, 1960
November 11, 1965

The invention relates to a circular knitting machine with two vertically arranged one below the other, independently operating needle selection devices, each on its own Set of pattern sliders acts so that there are two in each groove of the needle bed under the needle Sample slide are located.

The invention extends to all circular knitting machines of the aforementioned type, which are seamless Tubular and hosiery with a toe and a heel part in the pendulum gait Make machine.

Especially in circular knitting machines for the production of tubular fabrics a plurality of systems in which needle cylinders of small diameter are provided, difficulties arise due to the fact that such needle cylinders are only available to a small extent on the circumference standing room, so that especially in cases when entangled with such machines Sample work should be carried out, for which needle selection devices different Art are to be arranged on the same machine, the small space available for the Attaching such different dialing devices is not sufficient.

A circular knitting machine with a large number of systems and individually movable needles is known, in which a plurality of separately arranged needle selection devices in different Altitudes are provided and work independently. Also is a wide variety of separate needle pusher assigned to the needle selection devices mentioned, which are located in the same Needle bed grooves move like needles. All the needle pusher in each slot of the needle bed are used and assigned to the different needle selection devices, enter into each other Touch and hit each other so that they cannot be operated independently of each other. There can only be an independent selection of these needle lifters. So if the top Jack set is selected so that it operates the needles without affecting the lower jacks, so when the pushers of the lower set are selected and operated, this pusher movement is transmitted to the needles via the intermediate and abutting pusher, so that there is actually an influence in this case. Therefore must before choosing and actuation of each of these pushers, they must first be switched off, i.e. they must be in Circular knitting machine

Applicant:

G. Stibbe & Co. Limited, Leicester

(Great Britain)

Representative:

Dr.-Ing. H. Fincke, Dipl.-Ing. H. Bohr
and Dipl.-Ing. S. Staeger, patent attorneys,
Munich 5, Müllerstr. 31

Named as inventor:

Albert Matthews Brown, Leicester

(Great Britain)

Claimed priority:

Great Britain December 14, 1959 (42 425)

their original positions are moved downwards.

The object of the invention is therefore in circular knitting machines of the aforementioned type, select each sample slide unaffected by the other to be able to address the difficulties mentioned in terms of a low available To fix the space.

This object is achieved in that in each groove of the needle bed between the Needle and the lower pattern slide, an intermediate slide is arranged, which is used to receive the upper pattern slide has a recess against the upper shoulder of the upper pattern slide to move the intermediate slide and thus the needle acts and in which the upper pattern slide is displaceable with play in the longitudinal direction. This measure ensures that when Moving the intermediate slide and thus the needle by resting against its lower end lower pattern slide the upper pattern slide remains unaffected at rest, so that everyone of the two pattern slide can act on the needle via the intermediate slide without the to move another sample slide.

Although it is known in a multi-system double-cylinder circular knitting machine with a pattern device, their needle slide for receiving the double latch needles and their pattern slide are connected by interlocking hooks,

509 737/30

to provide a game so that both slides can be actuated without mutual interference; However this known arrangement is not able to give any suggestion to provide two sample slides whose one is arranged displaceably in an intermediate slide with play.

For an expedient further development of the subject matter of the invention, that corresponds to the area of the recess remaining shaft height of the intermediate slide together with the shaft height of the in this Recess movable upper pattern slide slightly the depth of the grooves of the needle bed; further the intermediate slide can also have a foot.

If a circular knitting machine according to the invention works with several systems, then located According to the invention, the needle selection devices arranged one above the other in front of each system or just in front of some of the systems; this makes it possible to use the needle selection devices arranged in front of one of the systems as well as the upper and lower pattern slide for the optional production of catch patterns and to use from reinforcement surfaces.

In the latter case, according to the invention, the upper sample slide for the production of Pattern feet at different heights on, act on the selector blades, those of superimposed, circumferential, from the needle cylinder driven sample disks are controllable. According to the invention is then advantageous Selector blades are preceded by a lock part through which all upper pattern slides have a lower foot can be raised at catch height, from the selected upper pattern slide of the selector blades can be raised to the inclusion height.

However, the last two characteristics used for catching patterns are known per se, are therefore only intended to protect in direct connection with the main feature of the invention mentioned enjoy. The same applies to. Another feature of the invention for the production of reinforcement surfaces serves and after which the lower pattern slide for the production of reinforcement surfaces lying in the same plane pattern feet of different Have height on which a radially adjustable lock part acts to override the needles to lift the lower pattern slider up to grasp the reinforcement thread, and that the lower sample slide have laterally bent feet, which are consecutively under the Take the sample feet of your neighboring lower sample slide and use it to widen the Raise the reinforcement surface.

The arrangement of the intermediate slide according to the invention therefore gives the possibility of two selection devices, with which the two sample slide sets are to be operated, at the same point or to be arranged close to one another, so that a small amount of space available is particularly favorable can be exploited. In addition, there is the possibility that such needles, which of the a selection device are selected via one of the aforementioned pattern slider, immediately thereafter can be selected by another dialing device, which on the other Sample slide comes into effect, which has not been influenced by the first-mentioned selection work is.

Other known knitting machines also do not use intermediate slides like the present invention, so that the advantages according to the invention cannot be achieved either. Even if the known machines the selection of one of the sliders can be superimposed on the other slider can, this measure is only one of several possibilities and has compared to the Another possibility of little importance, according to which two dialing devices in each system a multi-system circular knitting machine with only a small cylinder diameter can be arranged, so that now on a system of one of the two selection devices a sample slide can be selected without affecting the other pattern slider Select the latter sample slide - if desired - immediately for the next system can.

To facilitate understanding of the invention, the following is a preferred exemplary embodiment will be described and explained with reference to schematic drawings, in which two separate and independently operated needle selection devices are provided, which on a system of a multi-system circular knitting machine, so that both net knitted fabrics as well as optionally at certain points of the same a reinforced product can be produced.

F i g. 1 shows a vertical partial section with a needle, an upper and a lower pattern slide and an intermediate slide that is located in one and the same groove of the Needle cylinder are located;

F i g. 2 shows a perspective view of one of the intermediate slides;

F i g. 3 diagrammatically shows part of the machine, seen from the outside, with lock parts on two adjacent systems of the machine are shown and can be explained in which way the upper pattern slide is to be operated to to raise all needles to the level of inclusion in the manufacture of plain knitted fabrics;

F i g. 4 explains the arrangement of lock parts for the lower sample slide, which on a any system of the machine are arranged;

F i g. Figure 5 shows a number of the lower sample slides of the machine in connection with the lifting lock part on an enlarged scale;

F i g. 6 shows a vertical partial section through a needle selection device for the production of Network machines, which are arranged on any system of the machine;

F i g. 7 explains the arrangement and the course of the feet and the lock parts as a diagram a particular system when a needle choice for reinforced areas forming an ordinary knitting the needles are to be superimposed;

F i g. 8 is a diagrammatic partial sectional view, roughly corresponding to FIG. 3, in order to be more complete Kind of explaining how the pattern sliders, intermediate sliders and needles work when choosing a needle for reinforced surfaces superimposed on ordinary knitting of the needles;

F i g. 9 is one of the F i g. 7 approximately corresponding illustration to explain how a needle selection for Reinforced areas of another choice of needle

5 6

for the production of net knitwear it is superimposed by one of the two optionally operated

can be; Load sample slide 8 and 9 in its longitudinal direction

F i g. 10 shows a diagram of a net mesh that can be moved away in order to communicate a corresponding longitudinal product with reinforcement for the foot of a stocking, movement of the associated needle 2, a typical example of the 5 according to the invention without the respective not used or in progress Possibility to show knitting. existing sample slides 8 and 9 are disturbed or

According to FIG. 1 of the drawings, the round is influenced.

Knitting machine for seamless tubular fabric of the particular from FIGS. 1 and 6 can be seen, an exemplary embodiment in which the Nadelwählvorrich- that each upper pattern slide 8 is arranged in the vicinity of its device of the following description, ίο the upper end an upper main foot 8 a, furthermore a needle cylinder 1, which is connected in the axial direction a lower foot 8b, which is provided among other things in the running grooves la, so that in the upper production of a 1 × 1 edge is used, part of each of these grooves is individually movable and held and guided at a certain point between them at needle 2 will. It is calculated on the feet of a triangular Musterfuß 8 thus c is arranged in the circular set of Na 15 in the manner of a sawtooth has. The individual yours, each of which has a working foot2a. upper pattern slide differ from one-with these needles a set of knock-off sinkers 3, which is also arranged in a circle by the respective height of their pattern, works together, feet 8 c. Each of these upper pattern slider 8 can These sinkers are be formed in the sinker ring 4 reasonable so that it initially has a full arranged and controlled by cams, which snap-off at 20 sentence pattern feet 8 c, so that a sinker cam cap 5 are fixed. The Ma- for its use then except for z. B. a or machine can be provided with a not shown usual two of these sample feet 8 c all other removed double edge device, which are one.

Has disc, which is above the needle cylinder 1 each lower pattern slide 9 according to

is arranged so that a set of transfer 25 Figs. 1, 3 and 8 have a sample foot 91 or 9 s as well

circuit boards are housed in this disc. at its lower end a bent sideways

The machine has a plurality of systems foot 9 α. A middle field of these lower patterns so that in each of them a thread guide slide 9, which is the minimum width of a bridge 6 (FIGS. 3 and 8), corresponds to the thicker surface of the fabric, the lower one has a main thread Y from a thread guide 6 '3 ° pattern pusher 9 with long pattern feet 9 Z on, is introduced at such a point that this can be taken up while the remaining lower pattern slider 9 on thread of needles 2, the two opposite sides when the same on the thread in question. this middle field are located at inclusion height CH in the case of this particular guide. Have short sample feet 9s on each of their examples. It is known to anyone skilled in the art, or in any of the systems mentioned, that a set of short feet above the thread guide lower pattern slides 9, which only have long feet and bridge 6 a reinforcing thread guide 7, only reinforce one of these with which a reinforcing thread Y ' can be produced in the fabric surface which is of a fig. 8 indicated with X height introduced smallest width to a predetermined largest, so that this thread extends from those needles 40 width. If, however, it is desired that it can be recorded which thread guides meeting two or more different widths from one another are to be produced by means of a lower pattern dimension, then the pattern feet 91 and 9s of the lower pattern, which have been raised to the height X, must be , slide 9 into three or more groups accordingly

In the embodiment according to the invention 45 is to be divided, so that the pattern feet of the lower now each needle 2 of the machine an upper pattern-pattern slide 9 of these groups each different slide 8 assigned, which have lengths below the trains borrowed. For example, if two-order The needle is held in the same groove la. sometimes an increase in width is desired, then This upper pattern slide 8 are mainly used if a middle field of lower ones is required to be provided for optional actuation by a needle selector 50 pattern slide 9 with long feet, see above Apparatus for the production of net knitted fabric that on each side of this field the lower pattern on every system or optionally on every slide 9 with medium and short feet System is arranged. Close these upper ones. For the sake of simplicity, however, the Sample slide 8 are also used for the optional description below of an actuation arrangement of the needles 2 are refined in the manufacture of a 55, in which the lower patternz. B. 1 x 1 margin. Each needle group of the machine, slide 9 only long or short feet on their Needles at specific times on each point.

or a desired system by a needle according to FIG. 1 and 2 of the drawings is in Selector device for producing reinforcement frontal or outer longitudinal edge of each intermediate surface are to be operated, an elongated recess 10 a is ausein for each needle 2 60 slide 10 arranged lower pattern slide 9, which works in the, which not only serves to an upper the same groove la as the corresponding upper pattern pattern slide 8, but also one slide 8 is held below the latter. To form this shoulder 106 against which the two foreheads come together Pattern slide 8 and 9 are in each of them lateral or upper end of the relevant upper common groove la separately from each other and un- 65 sample slide 8 can apply actuating. Extraordinary can be actuated by one in the same groove that gives the possibility to be-Ia arranged intermediate slide 10. This intermediate times a game between the slide valve has a shape corresponding to the lower end of the upper pattern slide 8 and

to leave a lower end 10 c of the intermediate slide 10, against which end the upper end of the corresponding lower pattern slide 9 can come into action. This game s is particularly clear from FIG. 3 can be seen. The shaft height 10 d of each intermediate slide 10 actually remaining in the region of the recess 10 α is kept relatively low in order to have the possibility that the same can extend along the rear edge of the associated upper pattern slide 8 and is to be accommodated in the same groove la as the latter . The common height of the shaft height 10 d of each intermediate slide 10 and the associated upper pattern slide 8 is practically the same or only slightly greater than the depth of the relevant groove la. This is offset by the provided with shoulder frontal part 1Ö and the lower end 10 c of each intermediate slide 10 of the shaft height 10 d thereof from before and provide in this way, shoulders 10 b and 10 /, against which the pattern shifter 8 and 9 can come to the activity in each case . As a result of the aforementioned game s between the lower end 10 c of the intermediate slide 10 and the lower end of the associated upper sample slide 8, which is inserted into this intermediate slide 10, it is possible to operate either one of the two sample slides 8 and 9 so that the associated needle 2 is displaced by the desired amount without the other of these two pattern sliders 8 and 9 being influenced or hindered.

A selected lower sample slide 9 can therefore move the associated intermediate slide 10 forward as a result of its actuation and thereby move the likewise associated needle 2 by an amount which corresponds to the length of the play 5 without the associated upper sample slide 8 being moved. A needle movement beyond the length of this play s is not possible. These operations can also be carried out in such a way that the lower pattern slide 9 switches off the upper pattern slide 8. If, on the other hand, the last-mentioned pattern slide 8 is operated selectively, then the same occurs with the shoulder 10 b on the end part 10 e of the intermediate slide 10 and pushes this intermediate slide 10 and thus the associated needle 2 by any desired amount without the lower pattern slide 9 is influenced, since the intermediate slide 10 is formed separately from the lower sample slide 9.

If desired, each intermediate slide 10 itself can also be provided with a foot 10 g, which is designed as an extension of the lower end 10 c, in order in this way to have the possibility of an optional actuation of this intermediate slide 10 independently of the associated independent To effect pattern slide 8 or 9. This optional execution form therefore gives the advantage that the intermediate slide 10 mentioned can not only be used as spacer parts and transmission parts for movements in the aforementioned manner, but that the same can also be used for other cases as intermediate sample slide by being optionally completely independent of the upper and lower sample slides 8 and 9 are operated. Here, a further space saving is given. From the above explanation it can be seen that the arrangement of the two sample slides 8 and 9 with intermediate slides 10, which are all aligned not only to a needle 2, but also within one and the same groove la and are moved, result in the essential advantage that the two needle actuation devices are arranged completely separately and act independently of one another on the same arrangement of pattern slides, so that these two needle selection devices of the same system of the machine are superimposed on one another. According to FIG. 7 and 9, in the machine of the exemplary embodiment, two such needle selection devices, which can be operated independently of one another, are provided on each system so that they are aligned with one another along a line I.

Before going into a more detailed description of these needle selection devices, which have a common design, it should first be pointed out that a lever lock part 11 is provided in the associated lock casing in each system, which acts on the needle feet Za to prevent all needles 2 from being knocked off. Position in the previous system to be raised to a catch height, and that in this lock jacket there is also a countersunk lock part 12 and immediately in front of the latter a guard lock part 13 is present. Furthermore, a lifting lock part 14 of the bolt type for the upper sample slide 8 is used below a horizontal part 13 α of this guard lock part 13 in each system, which in its working position on the upper main feet 8 α of all upper sample slide 8 comes into play in order to lift them and thus also move all needles 2 up from the catch height to the inclusion height. As a result, the old loops get behind the needle tongues, so that the needles 2 take up the main thread Y in their hook, which has been introduced by the thread guide 6 '. The needles 2 knit a smooth product when they are withdrawn by the action of the countersunk lock part 12 on the needle feet 2 α in the cut-off position. These processes emerge clearly from FIG. Figure 3 of the drawings, in which the lift lock member 14 is shown in action so that smooth knit fabric is made in the illustrated system. The needles 2 are raised to their inclusion height with the aid of the intermediate slide 10, so that the upper pattern slide 8 must have previously been moved with respect to this intermediate slide 10 that the upper ends of the upper pattern slide 8 abut against the shoulders 10 b and the above free play s between the lower ends of this sample slide and the lower end 10 c of the intermediate slide 10 is present.

In the production of net knitwear, the procedure is known to systematically and regularly select a set of needles from which some needles form tuck loops and the remaining stitches, the needle arrangement, for example, a combination of 3 × 1 or the like with regard to the formation of stitches and tuck loops. can be. In the present embodiment, the needle selection device for the needles for net knitting, which is placed in the vertical line I in any or any desired suitable system, in addition to a complete one in a circle

9 10

attached set of upper pattern slides 8, closed part 20 partially raised long pattern, the pattern feet 8 c of different heights on- feet 91 on this lifting lock part 22 and are raised a number of one above the other in such a way that of the aforementioned rotatable pattern height disks 15, their number the leren field of the lower pattern slide 9 corresponds to the lan number of the pattern feet (Fig. 1). The reverse 5 by sample feet 9 1 all of the lower sample catches of these sample disks 15 is designed to be brought into such a height position in a suitable slide. The pattern disks 15 are raised by the fact that the corresponding needles 2 are now raised upwards from the needle cylinder 1 via a gearbox generally identified by reference to the intermediate slide 10 in characters 16. Moved in this height position, while a corresponding anio, the needles pick up the reinforcing thread Y ' , order of inclined and optionally to be actuated - which is introduced by the thread guide 7. In the selector pawls 17 it is provided that the same Fig. 8 is a lower pattern at the point / i, the pattern feet 8 c optionally actuate, which slide 9 shown with a long pattern foot 91 , between the pattern discs 15 and the selector which from the lifting lock part 22 is raised and pawls 17 are located. In addition, the associated intermediate slide 10 selection device is a corresponding group of pushes up within this range, without the upper, superposed actuating levers 18 aligned for this purpose, being disturbed or influenced. How see. These last-mentioned operating levers have been explained above, this possibility is optionally set by the sample disks 15 in the activity of switching off a disturbance or influencing and in turn work optionally on the ao of the upper sample slide 8 in that selector pawls 17. A needle selection is made in between the lower end of this sample slide 'caused by the fact that initially together with the lower end 10c of the intermediate slide, the upper sample slide 8 is left free at a height. In the position which has just been raised, the lower end 10c is now the same as the position which was mentioned as the catching height of the needles 2. For this purpose is used on the corresponding system 25 term, close to the upper sample slide 8 on a fixed lock part 19, which run towards the lower. In the meantime, however, the foot 8b in question is the upper sample slide 8 for the effect of lower sample slide 9 in the B in FIG. 7 and 8 comes (Fig. 7). Thereafter, the previously specified positions are optionally raised. The game s is correct, partially raised upper pattern - although canceled; the lower pattern slide 9 is jeschieber 8 from the catch height to the inclusion height 30 but completely raised in such a way that another is raised. For this purpose, an optional play is carried out between the upper end 10e of the intermediate slide, which is seen with one shoulder of the selector pawls 17 on the sample feet 8c. These positions of the feet 2 a, 8 a, 8 b and the upper end of the upper pattern slide 8 and 8 c are set during the optional activity of the. When the first and the last of the lower pattern net knitted fabric provided with upper pattern sliders 8 for the production of 35 long pattern feet in the upper part of FIG. 9 of the slide 9 from the middle field mentioned by drawings, the arrangement so that the lifting lock part 22 is raised, detect which is made that the needles to form upwardly raised, laterally raised feet 9 a of these stitches and tuck loops in a ratio of 3 · 1 both sample sliders 9 the short sample feet 9 s . 40 of the immediately adjacent lower pattern-The arrangement of the lower pattern slider 9 for slider 9 with short pattern feet at the opposite ends of the middle group overlying the production of an optional reinforcing surface on each system or on any desired and raise the same, so that this also system is designed in the usual way and comprises these two lower sample slides 9 with short lock parts, which the vertical line / is distributed on the system in question by 45 sample feet in such a height position. These lock parts are, that their feet on a subsequent lifting contain a fixed lift lock part 20, the lock part, through which these patterns on all long pattern feet 9 1 in the middle slide are completely raised and this field of lower pattern slides 9 acts so that the assigned needles in the height of which would move the reinforcing thread to Aufdiese pattern slide 9 from an inactive position L 50. This can be raised into a working position L ' , where the process occurs continuously, so that the lower pattern against the slide 9 provided with short pattern feet 9 s with short pattern feet on the opposite lower pattern slide 9 according to FIG move past the lower position. According to the group consecutively from the lower figure. 7, 8 and 9 run en these short sample feet 9 s 55 lung L starting to be detected until an inactive below a guard lock part 21 continues. Desired expansion or widening of a ver-Furthermore, a lifting lock part 22 is provided, which is carried out through the thickest surface of the knitted fabric. 5 it can be seen in detail in what way and in the manner of a bolt is formed, so that the laterally broken foot 9 a of the first lower it optionally inserted into the working position and 60 sample slide 9 from such a group can be withdrawn from the same. If there are long sample feet on the sample feet 9 s of the lifting lock part 22 in its idle position or adjacent lower pattern, then the sample feet 91 raised into position L ' by the slide 9 with short pattern feet for action of the lifting lock part 20 come in. The lower sample slides 9 are, briefly divided below a lock part 23 and over 65 says, so with a predetermined group of the guard lock part 21. However, the lifting needles 2 is in work that when a lock part 22 was brought into its working position - Lifting lock part 22 on a system in its working end, then running which has been moved by the fixed lifting position, thereby the reinforcement

Kungsarbeit is inserted by the field of lower pattern slide 9 with long pattern feet is raised, whereupon the lower pattern slide 9 progressing with short pattern feet are moved backwards one after the other in order to attach the corresponding needles to the reinforcement thread in the usual way so that the desired surface shape of a reinforced product is thereby produced will.

In the invention it is possible to have both the upper and the lower pattern slide at the same time to operate which are assigned to one and the same needle, so that by a needle selection device effected needle selection is superimposed on such a selection which is carried out by the other needle selection device.

If, therefore, as in the present embodiment of the invention, a needle device for net stitching and a needle selection device for reinforcement surface formation in the form described above are arranged vertically in alignment with one another on one and the same system, then these two devices can, if desired, during knitting work on stocking parts with reinforced surfaces at the same time. In this case, the choice of the lower pattern slide 8 is superimposed on the choice of the upper pattern slide 9, so that then, while the actually reinforced surfaces are knitted smoothly, the immediately adjacent surfaces of the goods are formed as net meshes. If selected needles are thereby raised by the lower pattern slide 9 above their inclusion height in order to reinforce, then the mesh stitch selection of the needles for the production of smooth knitted fabric is neutralized. This superimposition of a reinforcement selection on a net mesh selection results particularly clearly from the illustration of FIG Surfaces as well as the immediately following knitwear is knitted smooth. Such an overlay can be seen particularly clearly from FIGS.

F i g. 10 shows part of a circular knitted stocking blank, with t denoting the toe part and / denoting the sole part. The latter is provided with a reinforced, smooth knitted area within the net mesh foot material mf. The foot part of this stocking blank has been knitted by superimposing a choice of reinforcement on a choice of net mesh, as is generally explained in FIG. Since the reinforced surface sa shown in FIG. 10 now has a double widening w and w ' , the lower pattern slide 9 required for this must have three pattern feet of different lengths, namely long, medium and short pattern feet. In addition, each lifting lock part 22 must be able to be brought into three different working positions in order to be able to act in these three positions on the correspondingly differently long sample feet as soon as it is desired.

Although the main advantage of the invention arises when a needle selector device for the production of net meshes and a needle selection device for the production of reinforcement surfaces perpendicularly one above the other on one and the same System are arranged, the invention need by no means always have such an arrangement. For example, it is also easily possible in the case of a machine with an even number of several systems, the needle selection device for net mesh on alternating systems to be provided and to work with needle selection devices for reinforcement surfaces, that are located on intermediate systems. In this case they will be made with a reinforcement thread knitted areas of the goods generated on the basis of net mesh.

Claims (7)

Patent claims: 1. Circular knitting machine with two vertically arranged one below the other, independently of one another working needle dials, each of which on its own set of pattern sliders acts so that there are two pattern slides in each groove of the needle bed under the needle are, characterized in that in each groove (Iß) of the needle bed (1) between the needle (2) and the lower pattern slide (9) an intermediate slide (10) is arranged which has a recess (10 a) for receiving the upper sample slide (8), against the upper shoulder (10 b) of which the upper sample slide (8) for moving the intermediate slide (10) and so that the needle (2) acts and in which the upper pattern slide (8 ) can be moved in the longitudinal direction with play (s). 2. Circular knitting machine according to claim 1, characterized in that the shaft height (10 d) of the intermediate slide (10) remaining in the region of the recess (10 a) together with the shaft height of the upper pattern slide (8) movable in this recess (10 a) is approximately corresponds to the depth of the grooves (la) of the needle bed (1). 3. Circular knitting machine according to claim 1, characterized in that the intermediate slide (10) has a foot (10 g). 4. Circular knitting machine according to claim 1 with several systems, characterized in that the needle selection devices arranged one above the other in front of each system or only in front some of the systems are located. 5. Circular knitting machine according to claims 1 to 4, characterized in that the upper pattern slide (8) for the production of catch patterns pattern feet (8 c) in different Have high altitudes, act on the selector blades (17), which are of superimposed, rotating pattern disks (15) driven by the needle cylinder are controllable. 6. Circular knitting machine according to claim 5, characterized in that the selector blades (17) a lock part (19) is connected upstream, through which all the upper pattern slide (8) via a lower The feet (8 &) can be raised at the catch height, from which the selected upper sample slide (8) can be raised by the selector blades (17) in the inclusion height. 7. Circular knitting machine according to claims 1 to 6, characterized in that the lower sample slide (9) for the production of reinforcement surfaces have sample feet (91, 9s) of different heights lying in the same plane, on which a radially adjustable lock part (22) acts, and that the lower sample slide (9) laterally bent feet (9 a) exhibit. Considered publications: German Patent No. 881983; French patent specification No. 1184 769, 912; British Patent Nos. 790141, 521264; U.S. Patent Publication No. 2890577. In addition 3 sheets of drawings 509 737/30 11.65 © Bundesdruckerel Berlin