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US 2006/0117804 A1Published application
Circular knitting machine, particularly of the medium-diameter type, with improved needle actuation
AssigneeSantoni S.P.A.
InventorEttore Lonati
Life of this patent
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Abstract
A circular knitting machine, comprising a footing with a rotatable, vertical needle cylinder, axial slots on the outer lateral surface of the needle cylinder, that accommodate each a needle, a sub-needle arranged below each needle in a corresponding axial slot connected bilaterally to the needle and having a radial heel, the sub-needle being oscillatable on a radial plane of the needle cylinder, sub-needle actuation cams, for producing movement of the sub-needle along the axial slot to actuate the overlying needle.
Claims25
1-24. (canceled)
A circular knitting machine, comprising:
- a footing;
- a needle cylinder supported on said footing and rotationally actuatable, with respect to said footing about an axis thereof, which is orientated substantially vertically;
- a plurality of axial slots being formed on an outer lateral surface of the needle cylinder, each slot accommodating a needle;
- actuating means for actuating the needles provided and interacting with said needles during rotation of the needle cylinder about said axis thereof in order to actuate the needles along a corresponding axial slot of the needle cylinder so that the needles form knitting with at least one yarn dispensed to the needles at at least one drop or feed of the machine;
- and wherein said needle actuation means comprise, for each needle, a sub-needle arranged in the corresponding axial slot of the needle cylinder below said needle;
- said sub-needle being connected bilaterally to the needle for motion along the corresponding axial slot and having, along an extension thereof, a heel that is orientated radially with respect to the needle cylinder;
- sub-needle actuation cams, said sub-needle being able to oscillate on a radial plane of the needle cylinder in order to pass from an active position, in which the sub-needle is extracted radially with the heel thereof from the corresponding axial slot of the needle cylinder so as to engage paths formed by said sub-needle actuation cams, which are arranged around the needle cylinder and are suitable to produce or allow a movement of said sub-needle along the corresponding axial slot of the needle cylinder, to an inactive position, in which the sub-needle is embedded with the heel thereof in the corresponding axial slot of the needle cylinder so as to avoid engaging said sub-needle actuation cams;
- and sub-needle actuation means which act on said sub-needle for transition thereof from said active position to said inactive position and vice versa.
5 more elements
Dependencies are inferred from the claim text.