DISPENSER FOR ELONGATE MATERIAL

• US 20100243784A1
• Filed: 03/25/2009
• Published: 09/30/2010
• Est. Priority Date: 03/25/2009
• Status: Active Grant

• Current Assignee: Sonoco Development Inc (Sonoco Products Company)
• Original Assignee: Sonoco Development Inc (Sonoco Products Company)
• Inventors: Johanson, James E., Baranov, Fedor
• Granted Patent: US 7,938,357 B2
• Time in Patent Office: Days
• US Class Current: 242/422.400
• CPC Class Codes: B65H 49/322 Enclosing boxes with supporting means for the package or reel during unwinding
• CPC Class Codes: B65H 59/04 by devices acting on package or support

Abstract

A device is provided for dispensing a length of elongate material wound on the barrel of a spool. A support is provided for the spool including first and second end plates. The end plates are positioned in a spaced relationship. A support hub extends from each plate and is engaged within an opening in the spool on opposite sides thereof, such that the spool may rotate about the support hub. The support hub includes a peripheral dimension that permits a dynamic, pivoting motion of the spool about the contact with the hub. The support hub normally positions the spool in a radially offset position and engages a friction member formed adjacent the periphery of the flange of the spool. During unwinding, pulling of the end of the elongate material causes the spool to pivot in the direction of the pulling force and away from the friction member. Once the pulling force is removed, the spool pivots about the hub, back into frictional engagement with the friction member.

Claims

1. A dispensing device comprising:

a spool comprising

a central barrel having an axial opening in each end, and

a pair of flanges positioned at opposite ends of the barrel and extending radially outward therefrom;

a length of elongate material wound on the barrel and between the flanges, an end portion of the elongate material exposed for initiating unwinding of the material from the spool; and

first and second end plates, the end plates positioned in a parallel and spaced relationship, the end plates comprising

a planar portion having a peripheral dimension greater than the radial extension of the flanges of the spool,

a support extending from the planar portion, one end of the spool rotationally mounted on the support and permitting a pivoting motion of the spool about the support, the support normally supporting the spool in a radially offset position, and

a friction member supported on the planar member radially outwardly of the support, the periphery of the flange engaging the friction member in the normal, radially offset position,

wherein during unwinding by pulling the end portion of the elongate material, the spool pivots on the support and disengages from the friction member to permit free rotation about the support and,

when the pulling force is removed, the spool pivots back into frictional contact with the friction member stopping by friction the rotation of the spool.

2. The apparatus of claim 1 further comprising a box enclosing the spool and the first and second end plates.

3. The apparatus of claim 1 wherein the friction member is in the form of a curved braking surface.

4. The apparatus of claim 1 wherein the friction member is formed on the planar portion of the plates at a position relatively below the centerline of the support.

5. The apparatus of claim 4 wherein the plates are identically formed, each having a second friction member positioned relatively above the centerline of the support when positioned on opposite sides of the spool.

6. The apparatus of claim 1 wherein the planar portion includes a peripheral rim and a series of struts.

7. The apparatus of claim 1 wherein the support includes an asymmetric hub.

8. The apparatus of claim 1 wherein the support includes a vertical plate.

9. The apparatus of claim 1 wherein the support includes a pair of vertically aligned pins.

10. An apparatus comprising:

a spool assembly having first and second flanges, the spool assembly adapted to support and dispense an elongate material wound thereon,

first and second end plates positioned on opposite sides of the spool, adjacent the first and second flanges,

a dynamic support positioned on at least one of the end plates and supporting a respective end of the spool assembly to allow rotation of the spool assembly and pivoting of the spool assembly on the support during unwinding of the elongate material, and

a brake for frictionally engaging at least one of the flanges of the spool assembly,

the spool normally in engagement with the brake and pivoting on the support during unwinding out of engagement with the brake.

11. The apparatus of claim 10 further comprising a box enclosing the spool assembly and the first and second end plates.

12. The apparatus of claim 10 wherein the friction member is formed on the planar portion of the end plates at a position relatively below the dynamic support.

13. The apparatus of claim 10 wherein the dynamic support is in the form of an asymmetrical hub having an offset pivot on its upper surface.

14. The apparatus of claim 10 wherein the dynamic support is in the form of a vertical plate.

15. The apparatus of claim 10 wherein the dynamic support is comprises a pair of substantially vertically aligned pins.

16. An end plate for rotationally supporting a spool having an elongate material wound thereof, the spool having a central barrel having an axial opening at one end and at least one flange positioned extending radially outward from the barrel, the end plate comprising:

a planar member having a peripheral dimension greater than the at least one flange of the spool;

a support extending outwardly from the planer member, the support having a periphery adapted to fit within the axial opening of the barrel of the spool to rotatably mount the spool on one side of planar member, the periphery of the support normally supporting the spool in an radially offset position and permitting pivoting of the spool during unwinding of the elongate material; and

a friction member supported on the planar member radially outwardly of the support such that the periphery of the at least one flange frictionally engages the friction member in the radially offset position of the spool on the support,

the spool capable of pivoting out of engagement with the friction member during unwinding of the elongate material.

17. The end plate of claim 16 wherein the support is in the form of an asymmetrical hub having an offset pivot on its upper surface.

18. The end plate of claim 16 wherein the support is in the form of a vertical plate.

19. The end plate of claim 16 wherein the support is in the form of a pair of substantially vertically aligned pins.

20. An apparatus for retaining and dispensing a length of elongate material comprising:

a spool assembly having first and second flanges and a central barrel extending between the first and second flanges, the spool assembly adapted to support a length of an elongate material wound on the barrel,

first and second end plates positioned on opposite sides of the spool, adjacent the first and second flanges,

a dynamic support positioned on at least one of the end plates and supporting a respective end of the spool assembly to allow for rotation of the spool assembly substantially about a longitudinal spool axis, and

a brake for frictionally engaging at least one of the flanges of the spool assembly,

the spool pivoting on the dynamic support to engage the brake in the resting position and pivoting on the dynamic support out of engagement with the brake during unwinding of elongate material.

21. An apparatus as in claim 20 wherein at least one of the end plates comprise a planer portion having a peripheral dimension greater than the radial extension of the flanges of the spool.

22. An apparatus as in claim 21 wherein the dynamic support extends from the planer portion of the at least one of the end plates.

23. An apparatus as in claim 20 wherein the structures of the first and second end plates are substantially identical.

24. An apparatus as in claim 20 wherein the dynamic support directs the spool in a radially offset position about the longitudinal spool axis in the resting position.

25. An apparatus as in claim 24 wherein the periphery of the at least one flange is in frictional engagement with the brake in the radially offset resting position.

26. The apparatus as in claim 20 further comprising a box enclosing the spool and the first and second end plates.

27. The apparatus as in claim 20 wherein the brake is in the form of a curved surface formed for engagement with the corresponding flange of the spool.

28. The apparatus as in claim 27 wherein the brake is positioned relatively below the dynamic support.

29. The apparatus as in claim 20 wherein the end plates include first and second brake members positioned relatively below and above the dynamic support.

30. The apparatus as in claim 20 wherein the first and second end plates comprise a peripheral rim and a series of support struts.

31. The apparatus as in claim 20 wherein the dynamic support comprises an asymmetric hub.

32. The apparatus as in claim 20 wherein the dynamic support comprises an elongated rib extending outwardly from the end plate.

33. The apparatus as in claim 20 wherein the dynamic support comprises a pair of vertically aligned pins.