# US 5,345,885 A · Looper of tufting machine

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- Number: US 5,345,885 A
- Document ID: US5345885A
- Status: Granted
- Kind: A
- Application number: 08/100,266
- Filed: 1993-08-02
- Granted: 1994-09-13
- Earliest claimed: 1992-09-09
- Assignees: Nara Company, Ltd.
- Inventors: Sota Yoshino
- Web page: https://patentgrep.com/patent/US5345885A

## CPC

- D05C 15/22: Loop-catching arrangements, e.g. loopers; Driving mechanisms therefor
- D05C 15/24: Loop cutters; Driving mechanisms therefor
- D05C: EMBROIDERING; TUFTING (making non-woven fabrics D04H; sewing D05B)

## Abstract

Looper for a tufting machine proposed to improve the yarn cutting performance with a knife in resilient contact with the looper. The knife abutting surface is bent about 2 degrees with respect to the handle toward the knife.

## Claims

### Claim 1

A looper for use in a tufting machine having a knife, said looper comprising:
an elongated handle having a first end and a second end, said first end of said handle being adapted to be mounted to the tufting machine;
a stem integrally attached at a first end thereof to said second end of said handle and extending therefrom in a substantially longitudinal direction of said handle;
a yarn engaging rod having a first end integrally attached to a second end of said stem and extending therefrom substantially in the longitudinal direction;
a hook integrally mounted at a second end of said yarn engaging rod;
wherein said handle, said stem, said yarn engaging rod, and said hook are respectively formed with first side surfaces, and are respectively formed with second side surfaces opposite said first side surfaces;
wherein said first side surfaces of said handle, said stem, said yarn engaging rod, and said hook are contiguous with one another;
wherein said first side surfaces of said stem, said yarn engaging rod, and said hook together constitute a knife abutting surface of said looper which is adapted to be abutted by the knife of the tufting machine; and
wherein a bend is formed at a junction between said second end of said handle and said first end of said stem, such that said knife abutting surface is angled, in a transverse direction, relative to said first side surface of said handle.

### Claim 2 (depends on 1)

A looper as recited in claim 1, wherein
said knife abutting surface is angled relative to said first side surface of said handle in a direction from said second side surface of said handle toward said first side surface of said handle.

### Claim 3 (depends on 1)

A looper as recited in claim 1, wherein
said knife abutting surface is angled by about 2 degrees relative to said first side surface of said handle in a direction from said second side surface of said handle toward said first side surface of said handle.

### Claim 4 (depends on 1)

A looper as recited in claim 1, wherein
said knife abutting surface is angled by about 2 degrees relative to said first side surface of said handle.