Knitted net for enveloping round bales, and method and device for the production thereof

Abstract

A netting, knitted from fringes and weft threads is provided in which at least one fringe in at least one marginal region of the netting is shorter than the remaining fringes of the netting. The invention relates, furthermore, to a method for producing the netting on a knitting machine, during the knitting of the netting shorter loops for forming stitches from which the fringes are knitted being generated in at least one marginal region than in the remaining regions of the netting. Moreover, a knitting machine for producing a netting is described, which comprises a first lay bar for feeding the weft threads, a second lay bar for feeding the longitudinal threads, a needle bar with needles and a take-up device, at at least one position on the needle bar at which the marginal region of the netting is knitted the needle being positioned higher than the remaining needles.

Description

[0001] This nonprovisional application is a continuation of International Application No. PCT / EP2006 / 000678, which was filed on Jan. 26, 2006, and which claims priority to German Patent Application No. DE 102005006110, which was filed in Germany on Feb. 10, 2005, and which are both herein incorporated by reference.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a netting which is knitted from fringes and weft threads, to a method for producing the netting, to a knitting machine for producing the netting and to the use of the netting. [0004] 2. Description of the Background Art [0005] Fringes are to be understood as meaning threads which, during the manufacture of the netting, run longitudinally in the production direction, and weft threads are to be understood as meaning threads which, during the manufacture of the netting, run in the transverse direction. Threads are in this context preferably to be understood as meaning film str...

AI Technical Summary

Benefits of technology

[0012] It is therefore an object of the present invention to provide a netting which is knitted from fringes and weft threads and which, in practical use, lays itself around the edge of a round bale, so that a fraying of the round bale in the edge region is prevented. Further objects of the present invention are to provide a method and a device for producing the netting.

[0016] The at least one shorter fringe in at least one marginal region of the netting ensures that, when the marginal region having the shorter fringe is being wound around the round bale, the netting fits snugly around at least one of the edges of the round bale, and a contraction of the netting on the round bale and therefore a fraying of the round bale edge region are thus avoided.

[0018] In an embodiment, the fringes are in each case produced from a longitudinal thread which can be knitted into stitches lined up with one another. The at least one shorter fringe is generated in that the stitches of the at least one shorter fringe are smaller than the stitches of the remaining fringes of the netting. As a result, even while the netting is being knitted, a shorter fringe is generated in a simple way in each case at the positions at which the fringes with smaller stitches are knitted.

[0019] In a further embodiment, the longitudinal threads from which the shorter fringes are knitted can have a greater cross section than the longitudinal threads from which the remaining fringes are knitted. This is achieved, for example, in that, when film strips are used, the strips from which the shorter fringes are knitted are cut wider than the film strips from which the remaining fringes are knitted, the thickness of the film being the same. Alternatively to this, even for the shorter fringes, strips may be used which consist of a thicker film and which are cut exactly as wide as the film strips from which the remaining fringes are knitted. It is also conceivable that both the thickness and the width of the film strip from which the shorter fringe is knitted are greater than the thickness and width of the film strip from which the remaining fringes are knitted. With an approximately circular cross section of the thread, preferably, the diameter of the thread from which the shorter fringe is knitted is greater than the diameter of the threads from which the remaining fringes are knitted. When a thread of greater cross section is used, smaller stitches arise during knitting because of the greater cross section, with the loop length being the same, since, on account of the greater cross section, the additional thread volume reduces the space surrounded by the loop.

[0022] In another aspect, the shorter loops can be generated in that the netting is taken up from the knitting region of the knitting machine over a shorter distance at the positions at which the shorter fringes are knitted. Since the netting is taken up from the knitting region of the knitting machine over a shorter distance at the positions at which the shorter fringes are knitted, the longitudinal threads from which the fringe is knitted are drawn over a shorter distance through the stitch last knitted. Shorter loops are thereby generated.

[0025] Owing to the higher position of the needles, the longitudinal thread from which the shorter fringes are knitted is drawn over a shorter distance through the stitch already knitted. This gives rise to a shorter loop. The renewed drawing of the longitudinal thread through the shorter loop thus gives rise to a smaller stitch.

Problems solved by technology

The result of this is that the round bales may fray and become unstable at the margins.

The round bale netting with an elastic marginal thread has the disadvantage that, during the production of the netting, an additional thread consisting of another material has to be provided in the marginal region.

Also, due to aging, the elasticity of an elastic marginal thread may diminish.

Moreover, the latter may become brittle and tear.

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