Knitting machine with device for jacquard patterning

Claim 2

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operative position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electro-magnetic means controlled by said read-out device, each of said electro-magnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electro-magnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electro-magnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposed, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from one of a plurality of cam discs the movement transmission from each one of said cam discs to a respective said rod supporting a respective said magnet armature being effected by a respective one of a plurality of rocker members one end of which rocker member follows the shape of said cam disc, and the other end of which rocker member is in connection with said rod, said rod being disposed approximately perpendicular to said rocker member and to the pivot axis of said rocker member.

Claim 3

A circular knitting machine according to claim 1, wherein each one of said cam discs performs one rotation in the perioD of time during which said parts move relatively to said respective guide faces by a path length which is equal to the spacing between two parts of the same group.

Claim 4

A circular knitting machine according to claim 1, wherein said cam discs for said magnet armatures of all electromagnetic means are rigidly attached to a common shaft and are so offset relatively to each other always by the same angle that a uniform distribution over the circumference is obtained.

Claim 5

A circular knitting machine according to claim 3, wherein said rocker members have a common pivot axis which extends parallel to said axis of said cam discs.

Claim 6

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operative position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electro-magnetic means controlled by said read-out device, each of said electro-magnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electro-magnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electro-magnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposed, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from a cam disc, the movement transmission from said cam disc to said rod supporting said magnet armature being effected by a rocker member one end of which follows the shape of said cam disc, and the other end of which is in connection with said rod, said rod being disposed approximately perpendicular to said rocker member and to the pivot axis of said rocker member, said rod being provided with a cross pin which extends approximately parallel to said pivot axis of said rocker member and which engages into a slot which is provided in the region of the end of said rocker member adjacent to said rod.

Claim 7

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operative position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electro-magnetic means controlled by said read-out device, each of said electro-magnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electro-magnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electro-magnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposed, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from a cam disc, the movement transmission from said cam disc to said rod supporting said magnet armature being effected by a rocker member one end of which follows the shape of said cam disc, and the other end of which is in connection with said rod, said rod being disposed approximately perpendicular to said rocker member and to the pivot axis of said rocker member, said rod being provided with a cross pin which extends approximately parallel to said pivot axis of said rocker member and which engages into a slot which is provided in the region of the end of said rocker member adjacent to said rod.

Claim 8

A circular knitting machine according to claim 5, wherein said end of said rocker member adjacent to said rod is in the form of a fork with two branches and the two branches of said fork are each provided with a slot.

Claim 9

A circular knitting machine according to claim 5, wherein said slot in said rocker end is disposed relatively to said cross pin in such manner that during the movement, derived from said cam disc, of said magnet armature to said poles of said electromagnetic means said cross pin comes to rest at the end of the slot remote from said magnet armature and transmits the movement by contact with the face limiting the end of said slot.

Claim 10

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operatIve position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electromagnetic means controlled by said read-out device, each of said electromagnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electro-magnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electromagnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposed, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from a cam disc, the movement transmission from said cam disc to said rod supporting said magnet armature being effected by a rocker member one end of which follows the shape of said cam disc, and the other end of which is in connection with said rod, said rod being disposed approximately perpendicular to said rocker member and to the pivot axis of said rocker member, a release spring being provided which is supported on the one hand at said rod and on the other hand at said rocker member and which exerts a force which tends to separate said magnet armature from the magnet poles of said associated electromagnetic means, the force exerted by said release spring being smaller than the force required for pulling the magnet armature off said poles when said electromagnetic means is energized.

Claim 11

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operatIve position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electromagnetic means controlled by said read-out device, each of said electromagnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electro-magnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electromagnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposed, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from a cam disc, the movement transmission from said cam disc to said rod supporting said magnet armature being effected by a rocker member one end of which follows the shape of said cam disc, and the other end of which is in connection with said rod, said rod being disposed approximately perpendicular to said rocker member and to the pivot axis of said rocker member, a release spring being provided which is supported on the one hand at said rod and on the other hand at said rocker member and which exerts a force which tends to separate said magnet armature from the magnet poles of said associated electromagnetic means, the force exerted by said release spring being smaller than the force required for pulling the magnet armature off said poles when said electromagnetic means is energized.

Claim 12

A circular knitting machine according to claim 8, wherein said one rocker member end rests on said cam disc under the effect of a rocker spring.

Claim 13

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operative position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electromagnetic means controlled by said read-out device, each of said electromagnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electromagnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electromagnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposEd, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from the cam disc through a rocker member, said cam disc holding said rocker member during approximately three-quarter rotation of said cam disc in a position in which said magnet armature is guided by surface contacting against said poles of said electro-magnetic means and said rocker member being held during approximately one-quarter rotation in a position in which said magnet armature is releasable from said poles with the assistance of the force of a release spring.

Claim 14

In a circular knitting machine a Jacquard patterning device which comprises read-out device for reading out information relating to a pattern, and a selection device, the machine having needles and parts associated with said needles for displacing selected needles, displaceable guide faces being provided for moving said parts into an operative position in which they can affect the needles, or into a rest position in which they remain without effect upon said needles, said device comprising a plurality of electromagnetic means controlled by said read-out device, each of said electromagnetic means being operatively associated with one of said displaceable guide faces to retain said guide face in one of said positions, each guide face being arranged to control a group of said parts, the said parts of each group being separated from each other by a number of parts associated with other groups, said number being smaller by one than the number of electromagnetic means, said displaceable guide faces and said parts being arranged for mutual relative movement and said guide faces being staggered transversely to the direction of said relative movement, said parts being provided with control faces which are staggered in a similar manner and which are arranged to come into engagement with respective associated displaceable guide faces, each one of said adjustable guide faces being connected to a magnet armature which is arranged to be guided mechanically by a mechanical drive to poles of the associated electromagnetic means, said adjustable guide face being disposed at one end of a rod at the other end of which rod said magnet armature is disposEd, said mechanical drive of said magnet armature and of said adjustable guide face connected to the latter being derived from the cam disc through a rocker member, said cam disc holding said rocker member during approximately three-quarter rotation of said cam disc in a position in which said magnet armature is guided by surface contacting against said poles of said electro-magnetic means and said rocker member being held during approximately one-quarter rotation in a position in which said magnet armature is releasable from said poles with the assistance of the force of a release spring.