Textiles: knitting – Independent-needle machines – Circular
Patent
1998-05-21
1999-07-20
Calvert, John J.
Textiles: knitting
Independent-needle machines
Circular
66148, D04B 956
Patent
active
059243104
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a device for closing one end of a tubular knitted article on the same circular machine that produced it. The machine is equipped with a needle cylinder and with a mechanical means such as a normal disc having hooks and located coaxially with the cylinder. This device is simpler and more reliable than other known devices designed for the same purpose.
SUMMARY AND OBJECTS OF THE INVENTION
The present device comprises: stitch loops from a first semicircle of needles, which stitch loops are intended to be transferred to the opposite semicircle of needles; about a diametrical axis in the working area of the needles and in such a way that it can rotate through 180.degree., rising and then falling; closing sliders for engaging the initial loops of toe fabric formed by said needles of the first semicircle; and hooks, and for moving the disc axially in such a way that the loops are passed from the hooks of the disc to the pick-up hooks, which transfer the loops they have received and bring them down over the needles of said opposite semicircle, which needles engage the toe fabric.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 shows a schematic plan view;
FIGS. 2, 2A; 3, 3A; 4 show three initial phases in the operation of closing the toe at the start of article production;
FIGS. 5 and 6 show two phases in enlarged partial plan view;
FIGS. 7 to 17 show successive phases in the forming of the initial closure of the tubular article and the start of this tubular article;
FIG. 18 shows in detail some of the components involved in forming the closed toe;
FIGS. 19 to 21 show partially in plan view certain phases of the transfer;
FIG. 22 shows a variant differing from the form shown in FIG. 19;
FIGS. 23 to 31 show an alternative embodiment differing from the form shown in FIGS. 1 to 21 in various conditions, for the initial loading of the needles; and
FIGS. 32 to 46 show another variant for making a closed toe at the end of the formation of a tubular article.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As illustrated in the accompanying drawing, the numeral 1 indicates the needles and the numeral 2 the sinkers of the needle cylinder, which is sketched at 3. The numeral 5 denotes the hook disc, which carries a series of radially distributed hooks 7 capable of radial movements. The hooks are subdivided into a semicircular sector A where the hooks are marked 7A and a complementary semicircular sector B where the hooks are marked 7B, and by analogy the needles of sector A are marked 1A and those of sector B are marked 1B. In the same way 2A and 2B are the sinkers of the respective sectors A and B. The two sectors A and B (see in particular FIG. 1) are defined and separated by a diametrical axis X--X, which is the axis of rotation of a half ring 9 (see in particular FIG. 1 and FIGS. 7 to 17); said half ring 9 can adopt two positions, one on the right and the other on the left when viewing FIG. 1, for rotation about the axis X--X, rising and falling as can be seen in particular in FIGS. 11 to 17. The half ring 9 has radial incisions or slots for the movement of pick-up hooks 10 shaped at the inward end into slightly curved crooked fingers 10A, which can be seen in isolation in FIG. 18; alongside each pick-up hook 10 is a corresponding closing slider 12, also shown in isolation in FIG. 18, which is specially shaped 12A at the inward end for the purposes indicated below. Each groove in the half ring 9 may carry a single pick-up hook 10, 10A and, alongside it, a closing slider 12, 12A, as is shown in FIGS. 19ff. Alternatively, each slit of the half ring 9 may cont
REFERENCES:
patent: 5570591 (1996-11-01), Frullini et al.
patent: 5617744 (1997-04-01), Conti
patent: 5647229 (1997-07-01), Conti
patent: 5727400 (1998-03-01), Lonati et al.
Calvert John J.
Golden Lady S.P.A.
Worrell Jr. Larry D.
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