Textiles: knitting – United needle machines – Straight
Patent
1985-12-19
1986-12-16
Feldbaum, Ronald
Textiles: knitting
United needle machines
Straight
D04B 2300
Patent
active
046287116
DESCRIPTION:
BRIEF SUMMARY
The invention consists of a process for manufacturing a patterned warp knit material according to the preamble of claim 1 as well as a knitting machine for carrying out the method according to the preamble of claim 6.
U.S. Pat. No. 3,999,407 describes a process for manufacturing a patterned warp knit material of the foregoing type. In that process, the pattern threads actually are only inserted into one warp stitch row. This has the disadvantage that such a pattern is constrained to be very narrow along the warp stitch row, and a relatively large portion of the non-pattern base of the knitting is visible between adjacent patterned rows. Accordingly, the pattern is diluted. Besides, such knitting has the disadvantage that when damaged, the stitches readily come unraveled. Furthermore, this patterned material has the disadvantage that the pattern from one row of stitches to the next must always be the same for all stitches, that is, all warp stitch rows which contain pattern threads must be patterned or not patterned in the same manner in each stitch row. Accordingly, narrow constraints are placed on the patterning of the warp knitting.
It is accordingly an object of the present invention to provide a method and a knitting machine with which patterned knitting can be manufactured with pattern threads that more completely cover the knitted work, particularly between the patterned warp stitch rows and which above all has a minimal tendency to come unraveled when the stitching is damaged.
The asserted object is achieved according to the process described in the characterizing features of claim 1, and the knitting machine, such as a galloon crocheting machine is described in the characterizing features of claim 6.
Accordingly, a connection is established between two and in some instances three or more patterned warp stitch rows in which the pattern threads, in the case of a pattern, are inserted by means of at least two and in some instances three or more knitting needles. In this manner, an improved coverage of the base of the patterned knitted work takes place. By working pattern threads into at least two warp stitch rows, a further advantage is achieved in that the tendency of the knitting to unravel, that is, to loosen as a result of destruction of the stitches, is minimized. Accordingly, when the thread retainers are individually controlled, collectively or singly, a greater variation in the pattern can be produced. Since the pattern threads, like the warp threads, are fed and processed continuously, and the pattern is produced only by means of controllable thread retainers, an especially simple process and a correspondinlgly simple knitting machine, for example, the galloon crocheting machine, is produced and yields a correspondingly high performance.
Preferred embodiments of the process are described in dependent claims 2-5, and preferred embodiments of the knitting machine are described in dependent claims 7-17.
It is possible for the pattern threads for each process to be fed simultaneously by means of at least two knitting needles and to be processed with the warp threads. A procedure according to claim 2, however, is particularly advantageous, since on the one hand interweaving is facilitated, and on the other hand, the stitching integrity is improved.
The process itself can be accomplished with various knitting needles such as tongue needles or slide needles. In such cases the longitudinal dirrection of the warp thread and the pattern threads can be arbitrarily selected and changed. The process according to claim 3, however, is particularly advantageous as it permits a very high production speed.
The thread retainers can under certain circumstances be located above the driven knitting needles. An embodiment according to claim 4 is particularly advantageous, however, since there the thread retainer is separate from the knittling needles, like the thread guides for the warp threads and the pattern thread, and thereby is not obstructed by these components and the reversibility of its functions is not pr
REFERENCES:
patent: 4331009 (1982-05-01), Kohl
patent: 4358939 (1982-11-01), Kohl
patent: 4417456 (1983-11-01), Bergmann et al.
Feldbaum Ronald
Textilma AG
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