US 6,141,994 AGranted

Knitting machine and control jack therefor

AssigneeSIPRA Patententwicklungs- u. Beteiligungsgesellschaft mbH

InventorErnst-Dieter Plath

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Abstract

A knitting machine comprises at least one knitting implement carrier (1) having tricks (10) and knitting implements (8) slidably mounted therein, a cam system for guiding the knitting implements (8) in pass or raise tracks (15, 16), control jacks (9) formed as two-armed levers associated with the knitting implements (8), which jacks have controllable raising butts (21) and armature surfaces and are mounted freely pivotable in tricks (10) of the carrier (1), springs (26) bearing on the trick bottoms for biasing the control jacks (9) and at least one selector station with a control magnet (25) and a presser cam system part (24) for so turning the control jacks (9) that their armature surfaces are applied to the control magnet (25) and are then selectively held or released from this. In accordance with the invention the control jacks (9) and the control magnet (25) are so designed and arranged relative to one another that the controllable raising butts (21) each assume a raise position when the control jacks (9) have their armature surfaces (31) lying on the control magnet (25) and each assume a pass position when the control jacks (9) with their armature surfaces (31) are released from the control magnet (25) under the action of the springs (26).

A knitting machine comprising:

at least one knitting implement carrier (1) having tricks (10) and knitting implements (8) slidably mounted in said tricks;
a cam system having pass and raise tracks (15, 16) for guiding said knitting implements (8), wherein said cam system and said carrier (1) are movable relative to one another;
control jacks (9) associated with said knitting implements (8) for selectively transferring said knitting implements (8) into said pass or raise tracks (15, 16), said jacks having bearing points (28), being mounted slidably in said tricks (10) of said carrier (1), being freely pivotable on bottoms of said tricks by means of said bearing points (28) and each having a first lower and a second upper lever arm (29, 30) to opposite sides of said bearing points, wherein said first lower lever arms (29) are provided with armature surfaces (31) and controllable raising butts (21) and wherein said second upper lever arms (30) are provided with rocking butts (23);
springs (26) bearing on said trick bottoms for biasing said second lever arms (30);
and at least one selector station having a control magnet (25) for cooperation with said armature surfaces (31) and a presser cam system part (24) for acting on said rocking butts for so swinging said control jacks (9) that said armature surfaces (31) are applied to the control magnet (25) and are then selectively held or released thereby;
wherein said cam system has a raise portion (20) for cooperation with said raising butts and wherein said presser cam system part (24) acts onto said rocking butts such that said controllable raising butts (21) each assume a position for being raised by said raise portion when said control jacks (9) have their armature surfaces (31) lying on the control magnet (25) and each assume a pass portion for not being raised by said raise portion when said control jacks with the armature surfaces (31) are released from the control magnet (25) under the action of the springs (26).

3 more elements

Abstract

Claims15