Replaceable hook modules

• US 7,237,497 B2
• Filed: 01/13/2006
• Issued: 07/03/2007
• Est. Priority Date: 01/13/2005
• Status: Active Grant

• Current Assignee: Card-Monroe Corporation
• Original Assignee: Card-Monroe Corporation
• Inventors: Johnston, Kendall
• Primary Examiner(s): WORRELL JR, LARRY D
• Application Number:
  US11/332,061
• Publication Number:
  US 20060150882A1
• Time in Patent Office: 536 Days
• Field of Search: 112/80.45, 112/80.4, 112/80.6
• US Class Current: 112/80.6
• CPC Class Codes: D05C 15/22 Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor

Abstract

A hook module assembly for a tufting machine is provided that allows for broken and damaged hooks of a level cut loop tufting machine to be replaced. The hook module assembly includes modular blocks having a series of slots in which level cut loop hooks are received. Locking mechanisms secure the hooks within their respective slots in the modules and allows for removal of individual hooks from the module as needed for repair and replacement.

Claims

1. A tufting machine comprising:

a frame;

at least one reciprocating needle bar having a plurality of needles arranged in spaced series therealong, said needles carrying a series of yarns for forming cut and loop pile tufts in a backing material passing through the tufting machine;

a level cut loop looper assembly mounted below said needle bar and comprising;

a series of modules each having a plurality of slots formed therein;

a plurality of level cut loop hooks each removably received within one of said slots;

a series of fasteners received within each of said modules and each releasably engaging a portion of at least one of said hooks to secure said hooks within said modules, wherein there are approximately half as many fasteners as there are hooks; and

a series of clips moveable between retraced and extended positions adjacent said level cut loop hooks for controlling formation of loop and cut pile tufts of yarns; and

a backing feed roll for feeding the backing material through the tufting machine.

2. The tufting machine of claim 1 and further comprising at least one locking member engaged by said fasteners to provide a bearing force against at least one of said level cut loopers to secure said level cut loopers in said modules.

3. The tufting machine of claim 2 and wherein said at least one locking member comprises a spring.

4. The tufting machine of claim 1 and wherein said module body further comprises a locator along a side surface of said module body adapted to engage a hook bar.

5. The tufting machine of claim 4 and wherein said locator comprises a tab projecting from said side surface of said module body.

6. The tufting machine of claim 4 and wherein said locator comprises at least one pin projecting from said side surface of said module body.

7. The tufting machine of claim 1 and wherein said module body is formed from plastic.

8. The tufting machine of claim 1 and wherein said module body is machined or cast from a metal material.