Tufting machine with shifting needle bar
First Claim
1. IN A TUFTING MACHINE OF THE TYPE HAVING A PLURALITY OF NEEDLES RECIPROCATING IN A PREDETERMINED PLANE, A NEEDLE BAR ON WHICH SAID NEEDLES ARE RIGIDLY MOUNTED IN FIXED LATERAL SPACED RELATION TO EACH OTHER, MEANS FOR ADVANCING A BACKING MATERIAL THROUGH THE TUFTING MACHINE FOR SEQUENTIAL PENETRATION BY THE NEEDLES TO CARRY PILE YARNS THROUGH THE BACKING MATERIAL, A SUPPORTING MEMBER FOR THE NEEDLE BAR IN WHICH THE NEEDLE BAR IS LATERALLY SHIFTABLE TO CAUSE THE NEEDLES TO PRODUCE PILE YARN STITCHES LATERALLY SPACED FROM YARN STITCHES OF A PREVIOUS PENETRATION, A PLURALITY OF LATERALLY IMMOVABLE LOOPERS OSCILLATING IN FIXED PATHS ON THE OPPOSITE SIDE OF THE BACKING MATERIAL TO ENGAGE YARNS CARRIED BY THE NEEDLES, AND MEANS FOR SHIFTING THE NEEDLE BAR LATERALLY WITH RESPECT TO THE LOOPERS, THE IMPROVEMENT WHICH COMPRISES A PATTERN CHAIN HAVING RAISED LINKS CORRESPONDING TO A LATERAL SHIFTING INCREMENT OF THE NEEDLE BAR, MEANS FOR DRIVING THE PATTERN CHAIN AND THE NEEDLE BAR SUPPORTING MEMBER IN TIMED RELATION TO EACH OTHER TO EFFECT A LATERAL SHIFTING OF THE NEEDLES CARRIED BY THE NEEDLE BAR WITH RESPECT TO AND WITHOUT ANY SHIFTING OF THE LATERALLY IMMOVABLE LOOPERS, A ROLLER FOR CONTACTING SAID LINKS, MEMBERS OPERATIVELY CONNECTING THE NEEDLE BAR AND THE ROLLER, AND MEANS INCLUDING A SPRING FOR URGING THE SAID MEMBERS IN ONE DIRECTION WHEREBY BACKLASH IN SAID ELEMENTS IS ELIMINATED AND ACCURATE VERTICAL ALIGNMENT OF EACH NEEDLE IN SUCCESSIVE LATERAL SHIFT POSITIONS WITH RESPECT TO A LATERALLY IMMOVABLE LOOPER IS ACHIEVED.
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Accused Products
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Citations
1 Claim
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1. IN A TUFTING MACHINE OF THE TYPE HAVING A PLURALITY OF NEEDLES RECIPROCATING IN A PREDETERMINED PLANE, A NEEDLE BAR ON WHICH SAID NEEDLES ARE RIGIDLY MOUNTED IN FIXED LATERAL SPACED RELATION TO EACH OTHER, MEANS FOR ADVANCING A BACKING MATERIAL THROUGH THE TUFTING MACHINE FOR SEQUENTIAL PENETRATION BY THE NEEDLES TO CARRY PILE YARNS THROUGH THE BACKING MATERIAL, A SUPPORTING MEMBER FOR THE NEEDLE BAR IN WHICH THE NEEDLE BAR IS LATERALLY SHIFTABLE TO CAUSE THE NEEDLES TO PRODUCE PILE YARN STITCHES LATERALLY SPACED FROM YARN STITCHES OF A PREVIOUS PENETRATION, A PLURALITY OF LATERALLY IMMOVABLE LOOPERS OSCILLATING IN FIXED PATHS ON THE OPPOSITE SIDE OF THE BACKING MATERIAL TO ENGAGE YARNS CARRIED BY THE NEEDLES, AND MEANS FOR SHIFTING THE NEEDLE BAR LATERALLY WITH RESPECT TO THE LOOPERS, THE IMPROVEMENT WHICH COMPRISES A PATTERN CHAIN HAVING RAISED LINKS CORRESPONDING TO A LATERAL SHIFTING INCREMENT OF THE NEEDLE BAR, MEANS FOR DRIVING THE PATTERN CHAIN AND THE NEEDLE BAR SUPPORTING MEMBER IN TIMED RELATION TO EACH OTHER TO EFFECT A LATERAL SHIFTING OF THE NEEDLES CARRIED BY THE NEEDLE BAR WITH RESPECT TO AND WITHOUT ANY SHIFTING OF THE LATERALLY IMMOVABLE LOOPERS, A ROLLER FOR CONTACTING SAID LINKS, MEMBERS OPERATIVELY CONNECTING THE NEEDLE BAR AND THE ROLLER, AND MEANS INCLUDING A SPRING FOR URGING THE SAID MEMBERS IN ONE DIRECTION WHEREBY BACKLASH IN SAID ELEMENTS IS ELIMINATED AND ACCURATE VERTICAL ALIGNMENT OF EACH NEEDLE IN SUCCESSIVE LATERAL SHIFT POSITIONS WITH RESPECT TO A LATERALLY IMMOVABLE LOOPER IS ACHIEVED.
Specification
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Current AssigneeEd B. Broadrick, Harry A. Batty
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Original AssigneeEd B. Broadrick, Harry A. Batty
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InventorsBatty, Harry A., Broadrick, Ed B.
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Application NumberUS04/098,580Time in Patent Office953 DaysField of SearchUS Class Current112/80.31CPC Class CodesD05C 15/30 by moving the tufting tools...
