Level cut loop looper and clip assembly

• US 7,438,007 B1
• Filed: 04/17/2007
• Issued: 10/21/2008
• Est. Priority Date: 03/19/2007
• Status: Expired due to Fees

• Current Assignee: Card-Monroe Corporation
• Original Assignee: Card-Monroe Corporation
• Inventors: Hall, Wilton
• Primary Examiner(s): Izaguirre; Ismael
• Application Number:
  US11/736,215
• Time in Patent Office: 553 Days
• Field of Search: 112 805- 806
• US Class Current: 112/80.51
• CPC Class Codes: D05C 15/22 Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor

Abstract

A level cut loop looper or hook and clip for a tufting machine includes a looper body having a channel in which a clip is received. The clip is moved between extended and retracted positions by an actuator as the level cut loop looper or hook is reciprocated into engagement with a needle of the tufting machine, so as to selectively form cut and loop pile tufts in a backing material.

Claims

1. A level cut loop looper and clip assembly for a tufting machine, comprising:

a plurality of level cut loop loopers, each having a looper body comprising a rear portion, a shank portion, a throat portion extending forwardly from said shank and terminating at a forward end, and a longitudinally extending channel formed along said looper body;

wherein said forward end of each level cut loop looper comprises a hooked portion extending downwardly from said throat portion; and

a plurality of clips each having a first end extending through said channel toward said rear portion of said looper body and a second end spaced from said first end and wherein said second end comprises a substantially flat front end adapted to engage against said hooked portion of an associated level cut loop looper to prevent the capture of loops of yarns alone said throat portion of said level cut loop looper; and

wherein each of said clips is slidably received along a channels of its associated level cut loop looper and is moveable therealong between a retracted position and an extended position in engagement with a rear side of said hooked portion of said forward end of said level cut loop looper to enable formation of cut and loop pile tufts of yarns by said level cut loop looper.

2. The level cut loop looper and clip assembly of claim 1 and further comprising a plurality of actuators for moving said clips between their extended and retracted positions.

3. The level cut loop loopers and clip assembly of claim 2 and further comprising a series of gates attached at one end to each of said actuators and adapted to engage said first ends of said clips for moving said clips between their extended and retracted positions.

4. The level cut loop looper and clip assembly of claim 1 and wherein each of said channels of each of said level cut loop loopers comprises an open-ended recess having a configuration that substantially matches each of said clips slideably received therealong.

5. A tufting machine for forming cut and loop pile tufts of yarns in a backing material, comprising:

at least one needle bar having a series of needles spaced therealong and carrying a plurality of yarns for insertion into the backing material;

a plurality of level cut loop loopers reciprocable into engagement with said needles for picking and pulling loops of yarns therefrom, each of said level cut loop loopers having a shank portion, a throat portion projecting from said shank portion towards said needles and terminating in a hooked front end, and an elongated channel formed along said shank portion; and

a plurality of clips each comprising a substantially rectangular body having a substantially flat front end adapted to engage against a rear side of said hooked portion of an associated level cut loop looper to prevent the capture of loops of yarns along said level cut loop looper;

wherein said clips are each adapted to be received and slide along one of said channels of said level cut loop loopers so as to be moveable between a retracted position and an extended position into engagement with said rear side of said hooked front end of its level cut loop looper for selectively forming the cut and loop pile tufts of yarns in the backing material.

6. The tufting machine of claim 5 and further comprising a plurality of actuators for moving said clips between their extended and retracted positions.

7. The tufting machine of claim 6 and further comprising a series of gates attached at one end to each of said actuators and adapted to engage said second ends of said clips for moving said clips between their extended and retracted positions.

8. The tufting machine of claim 5 and further comprising a plurality of cutting assemblies each including a knife reciprocated into engagement with a throat portion of one of said level cut loop loopers for cutting loops of yarns captured therealong.

9. The tufting machine of claim 5 and wherein each of said channels of each of said level cut loop loopers comprises an open-ended recess having a configuration that substantially matches each of said clips slideably received therealong.