Yarn carrier

• US 7,240,875 B2
• Filed: 10/14/2003
• Issued: 07/10/2007
• Est. Priority Date: 10/14/2003
• Status: Expired due to Term

• Current Assignee: Sonoco Development Inc (Sonoco Products Company)
• Original Assignee: Sonoco Development Inc (Sonoco Products Company)
• Inventors: Hernández, Ismael A., Couchey, Brian P., Reicherz, Christoph, Bellum, Clifford A., Mims, Richard K.
• Primary Examiner(s): Rivera; William A.
• Assistant Examiner(s): HAUGLAND, SCOTT J
• Application Number:
  US10/685,976
• Publication Number:
  US 20050077421A1
• Time in Patent Office: 1,365 Days
• Field of Search: 242/125.1, 242/118.3, 242/118.32, 242/610, 242/610.1, 242/610.4, 242/610.6, 242/613, 242/579, 242/586, 242/586.2, 242/587.2, 242/587.3, 242/476.1, 242/476.5, 242/476.6
• US Class Current: 242/587.2
• CPC Class Codes: B65H 2701/31 Textiles threads or artificial strands of filaments
• CPC Class Codes: B65H 75/10 without flanges, e.g. cop tubes
• CPC Class Codes: B65H 75/28 Arrangements for positively securing ends of material

Abstract

A yarn carrier is provided in the form of a yarn winding tube having a yarn catch insert. The yarn winding tube is a hollow cylindrical tube having a longitudinal axis extending lengthwise between its first and second opposite ends. The tube has a hole through its surface for receiving a yarn catch insert. The yarn catch insert includes a first member and a second member, each having an inside surface. When positioned within the hole, the inside surfaces of the first and second members face each other and form a string-up groove therebetween. After a yarn winding and unwinding process, the yarn catch insert may be removed from the hole in the tube, the first and second member may be separated, and the string-up groove may be cleaned. The yarn catch insert may then be re-inserted into the hole and the tube may be reused for winding.

Claims

1. In combination, a yarn catch insert and a yarn winding tube, the insert for insertion into a circumferentially elongated hole formed through the yarn winding tube inwardly of the end of the tube, the yarn winding tube comprising:

a hollow cylindrical tube body having a longitudinal axis

extending lengthwise between first and second opposite ends thereof and having a substantially cylindrical outer surface, the elongated hole completely surrounded by the cylindrical surface, and the elongated dimension of the hole having a planar side surface with a portion extending in a circumferential direction around a portion of the circumference of the tube body and substantially perpendicular to the longitudinal axis of the tube body, and

the yarn catch insert comprising;

an inside surface,

an outside surface positioned adjacent the outer cylindrical surface of the tube body when the insert is positioned within the hole, and

an extended side surface, a portion of the side surface of the insert positioned opposite the portion of the side surface of the hole when the insert is positioned within the hole, the extended side surface of the insert having a planar first portion and a second portion formed at an angle with respect to the first portion, the opposing portions of the side surfaces of the insert and the hole forming a circumferential start-up groove within the cylindrical outer surface of the tube, at least a portion of the start-up groove being tapered in a direction along the circumference of the tube due to the angular relationship between the first portion and second portion of the side surface of the insert.

2. The combination according to claim 1 wherein the yarn catch insert has a flange adjacent its inside surface for preventing the outside surface of the yarn catch insert from extending beyond the outer cylindrical surface of the tube body.

3. The combination according to claim 1 wherein an edge between the outside surface of the yarn catch insert and at least a portion of the side surface of the insert is radiused.

4. A combination according to claim 3 wherein the outside surface of the yarn catch insert is tapered radially inwardly when positioned within the hole within the tube body.

5. The combination according to claim 1 wherein the start-up groove tapers to a pinch point.

6. The combination according to claim 1 wherein the first portion of the side surface of the insert and the corresponding portion of the side surface of the hole are perpendicular to the longitudinal axis of the tube body.

7. The combination according to claim 1 wherein the yarn catch insert is comprised of one of plastic, wood, and metal.

8. The combination according to claim 1, wherein the yarn catch insert further comprises a lower portion and an upper portion, the lower portion having a width corresponding to the width of the hole in the tube body, the upper portion have a width less than the width of the hole in the tube body, wherein the start-up groove is formed between the side surface of the hole and the upper portion of the yarn catch insert.

9. A yarn carrier for winding yarn thereon comprising:

a. a hollow tube having a longitudinal axis extending lengthwise between first and second ends thereof, the tube having an outer cylindrical surface and an elongated hole through and completely surrounded by the cylindrical surface, the hole positioned inwardly of one end of the tube, the longitudinal dimension of the hole extending in the circumferential direction of the tube; and

b. a yarn catch insert positioned within the hole formed through the tube, the hole having an extended planar side surface perpendicular to the longitudinal axis of the tube, the yarn catch insert having an inside surface, an outside surface, and an extended side surface, the extended side surface having a planar first portion and a planar second portion, the planar second portion angled relative to the first portion, the extended side surface of the insert positioned opposite the extended planar side surface of the hole with the first portion parallel to the extended planar side surface of the hole when the insert is positioned within the hole, and the extended side surface of the hole and the extended side surface of the insert forming a start-up groove extending in a circumferential direction around the tube, at least a portion of the start-up groove being tapered.

10. A yarn carrier for winding yarn thereon comprising:

a hollow cylindrical tube having a longitudinal axis extending lengthwise between first and second opposite ends and having substantially cylindrical inner and outer surfaces, the tube having an elongated hole extending between the inner and outer surfaces of the tube and spaced inwardly from one end of the tube, such that the hole is surrounded by at least the outer cylindrical surface of the tube, the hole having a planar side surface with an elongated dimension extending in the circumferential direction of the tube, and

an elongated yarn catch insert removably secured within the hole in the tube, the insert having an extended side surface, including a first portion and a second portion, the first portion angled with respect to the second portion, the extended side surface of the insert positioned in an opposing relationship with the side surface of the hole, with the first portion spaced from and substantially parallel to the side surface of the hole and the second portion forming a tapered groove with the side surface of the tube, the insert and the side surface of the hole combining to form a yarn catching start-up groove in the yarn carrier.

11. The yarn carrier according to claim 10 wherein the hole comprises a countersink formed adjacent the inner surface of the tube.

12. The yarn carrier according to claim 10 wherein the hole has a width that tapers in a direction from the inside surface to the outside surface of the tube.

13. A yarn carrier for winding yarn thereon comprising:

a. a hollow cylindrical inner tube having a longitudinal axis extending lengthwise between first and second opposite ends thereof, the inner tube having a substantially cylindrical outer surface and a longitudinally extending hole formed through the inner tube inwardly of one end thereof and extending around a portion of the circumference of the tube, the hole directed radially from an inner tube diameter through to the outer surface,

b. a hollow cylindrical outer tube having a longitudinal axis extending lengthwise between first and second opposite ends thereof and coaxially with the longitudinal axis of the inner tube, the outer tube having a substantially cylindrical inner surface with a diameter that is greater than the diameter of the outer surface of the inner tube, and a circumferentially extending elongated hole formed through the outer tube inwardly of one end thereof, such that the hole is surrounded by the outer surface, and the hole in the outer tube having a substantially planar side surface extending in a circumferential direction of the tube,

wherein the inner tube is disposed within the outer tube and wherein the circumferentially extending elongated holes in the inner and outer tubes are substantially aligned, and

c. an elongated yarn catch insert removably secured within the holes in the inner and outer tubes, the insert having an extended side surface including a first portion and a second portion, the first portion being angled with respect to the second portion, the extended side surface of the insert positioned in an opposing relationship with the side surface of the hole in the outer tube adjacent the outer surface thereof, with the first portion being spaced from and substantially parallel to the side surface of the hole in the outer tube and the second portion forming a tapered groove with the side surface of the outer tube, the insert and the side surface of the hole in the outer tube combining to form a yarn catching start-up groove adjacent the outer surface of the outer tube.

14. A yarn carrier according to claim 13 wherein the outer surface of the inner tube comprises ribs for securing the outer tube to the inner tube.

15. A yarn carrier according to claim 13 wherein the inner tube comprises plastic, metal, wood, or combinations thereof.

16. A yarn carrier according to claim 13 wherein the outer tube comprises paper.

17. A yarn carrier according to claim 16 wherein the outer tube has a thickness and the composition of the paper varies along the thickness of the outer tube.

18. A yarn carrier according to claim 17 wherein the outer tube has an inside portion and an outside portion and the inside portion is softer than the outside portion.

19. A yarn carrier according to claim 13 wherein the hole of the inner tube has side surfaces that are substantially perpendicular to the longitudinal axis.