Reinforced continuous loop matrix member; continuous loop reinforcement assembly; flexible cylindrical reinforcement band; and axially reinforced cylindrical coil

• US 20110223366A1
• Filed: 03/12/2010
• Published: 09/15/2011
• Est. Priority Date: 03/12/2010
• Status: Abandoned Application

• Current Assignee: Milliken & Company
• Original Assignee: Milliken & Company
• Inventors: Petri, Patrick A., Vogt, Kirkland W.
• Application Number:
  US12/661,196
• Publication Number:
  US 20110223366A1
• Time in Patent Office: Days
• US Class Current: 428/36.5
• CPC Class Codes: B32B 1/08 Tubular products
• CPC Class Codes: B32B 2262/0269 Aromatic polyamide fibres
• CPC Class Codes: B32B 2262/101 Glass fibres
• CPC Class Codes: B32B 2262/103 Metal fibres
• CPC Class Codes: B32B 2262/106 Carbon fibres, e.g. graphite fibres
• CPC Class Codes: B32B 2266/0278 Polyurethane
• CPC Class Codes: B32B 2307/54 Yield strength; Tensile strength
• CPC Class Codes: B32B 2307/546 Flexural strength; Flexion stiffness
• CPC Class Codes: B32B 2307/732 Dimensional properties
• CPC Class Codes: B32B 2413/00 Belts conveyor belts B32B2433/02; drive belts B32B2433/04
• CPC Class Codes: B32B 27/04 as impregnant, bonding, or embedding substance not used
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/40 comprising polyurethanes
• CPC Class Codes: B32B 3/14 characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side B32B5/02 takes precedence
• CPC Class Codes: B32B 3/28 characterised by a layer comprising a deformed thin sheet , i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled B32B29/08 takes precedence
• CPC Class Codes: B32B 5/022 Non-woven fabric
• CPC Class Codes: B32B 5/024 Woven fabric
• CPC Class Codes: B32B 5/026 Knitted fabric
• CPC Class Codes: B32B 5/18 characterised by features of a layer of foamed material
• CPC Class Codes: B32B 5/28 impregnated with or embedded in a plastic substance not used
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: F16L 11/081 : comprising one or more layers of a helically wound cord or wire in combination with braided layers F16L11/088
• CPC Class Codes: Y10T 428/13 : Hollow or container type article [e.g., tube, vase, etc.]
• CPC Class Codes: Y10T 428/1376 : Foam or porous material containing

Abstract

A continuous loop reinforcement assembly has an inner first flexible cylindrical reinforcement band separated from an outer second flexible cylindrical reinforcement band by a flexible intermediate resilient spacer. The intermediate resilient spacer applies a constant even force to the first and second flexible cylindrical reinforcement bands around the annular space between the two bands. The intermediate resilient spacer is a porous material formed of foam, nonwovens, spacer fabrics, or similar materials. The cylindrical bands are flexible with openings, and are formed from a coil of cable or similar material. The first and second flexible cylindrical reinforcement bands have a Young'"'"'s Modulus greater than the Young'"'"'s Modulus of a matrix that encapsulates the cylindrical reinforcement assembly. A retainer uses yarns to secure the cable in the coil. The retainer includes two polymers of different melting points, the lower melting point polymer is melt bonded to secure the retainer fixed around the cables. One of the yarns in the retainer can be a structural reinforcing yarn, and a second yarn in the retainer can be a tying yarn securing the structural yarn to the cable in the coil. A reinforced matrix continuous loop member is formed by passing the matrix through the flexible cylindrical reinforcement members and intermediate resilient spacer of the continuous loop reinforcement assembly to form the member, such as a belt, hose, roller, or tire.

Claims

9. A continuous loop reinforcing assembly comprising:

a first flexible cylindrical reinforcement band having an outer surface;

a second flexible cylindrical reinforcement band disposed around the first flexible cylindrical reinforcement band, the second flexible cylindrical reinforcement band having an inner surface facing towards the first flexible cylindrical reinforcement band;

a porous resilient spacer disposed between the first flexible cylindrical reinforcement band and the second flexible cylindrical reinforcement band, wherein the porous resilient spacer applies a force to the outer surface of the first flexible cylindrical reinforcement band and to the inner surface of the second flexible cylindrical reinforcement band.

1. A continuous loop reinforced matrix member comprising:

a matrix material;

a continuous loop reinforcing assembly disposed within said matrix material, the reinforcing assembly including;

a first flexible cylindrical reinforcement band having an outer surface;

a second flexible cylindrical reinforcement band disposed around the first flexible cylindrical reinforcement band, the second flexible cylindrical reinforcement band having an inner surface facing towards the first flexible cylindrical reinforcement band;

a porous resilient spacer disposed between the first flexible cylindrical reinforcement band and the second flexible cylindrical reinforcement band, wherein the porous resilient spacer contacts the outer surface of the first flexible cylindrical reinforcement band and the inner surface of the second flexible cylindrical reinforcement band;

wherein the first flexible cylindrical reinforcement band and the second flexible cylindrical band have a Young'"'"'s Modulus greater than the matrix material.

2. The continuous loop reinforced matrix member assembly according to claim 1, wherein the first flexible cylindrical reinforcement band comprises at least one cable wound in a helix, the at least one cable making at least three revolutions around the first flexible cylindrical reinforcement band.

3. The continuous loop reinforced matrix member according to claim 1, wherein the second flexible cylindrical reinforcement band comprises at least one cable wound in a helix, the at least one cable making at least three revolutions around the second flexible cylindrical reinforcement band.

4. The continuous loop reinforced matrix member according to claim 1, wherein the porous resilient spacer comprises a strip of material.

5. The continuous loop reinforced matrix member assembly according to claim 1, wherein the porous resilient spacer comprises a foam material.

6. The continuous loop reinforced matrix member according to claim 1, wherein the porous resilient spacer and the matrix comprise the same material.

7. The continuous loop reinforced matrix member assembly according to claim 6, wherein the porous resilient spacer and the matrix comprise polyurethane.

8. The continuous loop reinforced matrix member according to claim 1, wherein:

the first flexible cylindrical reinforcement band comprises at least one first cable wound in a helix, the at least one first cable making at least three revolutions around the first flexible cylindrical reinforcement band,

the second flexible cylindrical reinforcement band comprises at least one second cable wound in a helix, the at least one second cable making at least three revolutions around the first flexible cylindrical reinforcement band,

wherein the porous resilient spacer comprises a foam material, and wherein the matrix material and the porous resilient spacer comprise the same material.

10. The continuous loop reinforcing assembly according to claim 9, wherein the first flexible cylindrical reinforcement band includes openings around the circumference.

11. The continuous loop reinforcing assembly according to claim 9, wherein the second flexible cylindrical reinforcement band includes openings around the circumference.

12. The continuous loop reinforcing assembly according to claim 9, wherein the first flexible cylindrical reinforcement band comprises a cable wound in a helix, the cable making at least three revolutions around the first flexible cylindrical reinforcement band.

13. The continuous loop reinforcing assembly according to claim 12, wherein the first flexible cylindrical reinforcement band further includes at least one retainer securing the cable.

14. The continuous loop reinforcing assembly according to claim 13, wherein the retainer is selected from the group consisting of a polymeric material woven into the cable and a metal strip crimped to the at least one cable.

15. The continuous loop reinforcing assembly according to claim 9, wherein the first flexible cylindrical reinforcement band comprises two or more cables wound in a helix, each of the two or more cables making at least three revolutions around the first flexible cylindrical reinforcement band.

16. The continuous loop reinforcing assembly according to claim 15, wherein the first flexible cylindrical reinforcement band further comprises at least one retainer securing the cables.

17. The continuous loop reinforcing assembly according to claim 16, wherein the retainer is selected from the group consisting of a polymeric material woven into the at least one cable and a metal strip crimped to the at least one cable.

18. The continuous loop reinforcing assembly according to claim 9, wherein the second flexible cylindrical reinforcement band includes a cable wound in a helix, the cable making at least three revolutions around the second flexible cylindrical reinforcement band.

19. The continuous loop reinforcing assembly according to claim 18, wherein the second flexible cylindrical reinforcement band further comprises at least one retainer securing the cable.

20. The continuous loop reinforcing assembly according to claim 19, wherein the retainer is selected from the group consisting of a polymeric material woven into the cable and a metal strip crimped to the at least one cable.

21. The continuous loop reinforcing assembly according to claim 9, wherein the second flexible cylindrical reinforcement band comprises two or more cables wound in a helix, each of the two or more cables making at least three revolutions around the second flexible cylindrical reinforcement band.

22. The continuous loop reinforcing assembly according to claim 21, wherein the second flexible cylindrical reinforcement band further comprises at least one retainer securing the cables.

23. The continuous loop reinforcing assembly according to claim 22, wherein the retainer is selected from the group consisting of a polymeric material woven into the at least one cable and a metal strip crimped to the at least one cable.

24. The continuous loop reinforcing assembly according to claim 9, wherein the first cylindrical reinforcement band can conform to a bend radius that is one-tenth or less of the normal inside diameter of the first cylindrical reinforcement band in the cylindrical reinforcement assembly without experiencing a permanent set.

25. The continuous loop reinforcing assembly according to claim 9, wherein the second cylindrical reinforcement band can conform to a bend radius that is one-tenth or less of the normal inside diameter of the second cylindrical reinforcement band in the cylindrical reinforcement assembly without experiencing a permanent set.

26. The continuous loop reinforcing assembly according to claim 9, further including an adhesive between the porous resilient spacer and the first flexible cylindrical reinforcement band.

27. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer includes a surface geometry that enhances the grip with the outer surface of the first flexible reinforcing band.

28. The continuous loop reinforcing assembly according to claim 9, wherein the volume of mass making up the porous resilient spacer is less than fifteen percent (15%) of the volume of the porous resilient spacer.

29. The continuous loop reinforcing assembly according to claim 9, wherein the volume of mass making up the porous resilient spacer is less than five percent (5%) of the volume of the porous resilient spacer.

30. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer has a greater flexibility than the first flexible cylindrical reinforcing band or the second flexible reinforcing band.

31. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer is a strip of material.

32. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer is a foam material.

33. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer is a reticulated foam material.

34. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer is a nonwoven material.

35. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer is a spacer fabric.

36. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer has a width less than the first flexible cylindrical reinforcement band or the second flexible cylindrical band.

37. The continuous loop reinforcing assembly according to claim 9, further including a second porous resilient spacer, wherein the porous resilient spacers are positioned adjacent to the outside edges of the first flexible cylindrical reinforcement band and the second flexible cylindrical band.

38. The continuous loop reinforcing assembly according to claim 9, further including a third flexible cylindrical reinforcement band having an inner surface facing towards an outer surface of the second cylindrical reinforcement band, and a second porous resilient spacer disposed between the third flexible cylindrical reinforcement band and the second reinforcement band, the second porous resilient spacer applying a force to the outer surface of the second flexible cylindrical reinforcement band and to the inner surface of the third flexible cylindrical reinforcement band.

29-1. The continuous loop reinforcing assembly according to claim 9, wherein the porous resilient spacer can conform to a bend radius that is one-tenth or less of the normal inside diameter of the porous resilient spacer in the cylindrical reinforcement assembly without experiencing a permanent set.

39. A flexible cylindrical reinforcement band comprising:

a continuous band having a coil of at least one cable making at least three revolutions around the coil; and

a plurality of retainers securing the at least one cable, said retainers comprising at least one securing yarn having;

a first material with a first melting point;

a second material with a second melting point, the second melting point being higher than the first melting point; and

,

wherein said first material has melt bonded to the second material.

40. The flexible cylindrical reinforcement band according to claim 39, wherein the yarn in said retainers is woven into the coil of the continuous band.

41. The flexible cylindrical reinforcement band according to claim 40, wherein the yarn in said retainers is woven into the coil of the continuous band in a leno weave pattern.

42. The flexible cylindrical reinforcement band according to claim 39, wherein the yarn in said retainers is knitted into the coil of the continuous band.

43. The flexible cylindrical reinforcement band according to claim 39, wherein said retainers contain a second yarn.

44. The flexible cylindrical reinforcement band according to claim 43, wherein said second yarn includes a first material with a first melting point and a second material with a second melting point, the second melting point being higher than the first melting point, and wherein said first material has melt bonded to the second material.

45. The flexible cylindrical reinforcement band according to claim 39, wherein the yarn in said retainers comprise a monofilament yarn.

46. The flexible cylindrical reinforcement band according to claim 45, wherein the monofilament yarn in said retainers comprise a core-sheath yarn, and

wherein the sheath comprises the first material with the first melting point and the core comprises the second material with the second melting point.

47. The flexible cylindrical reinforcement band according to claim 39, wherein the yarn in said retainers comprise a multifilament yarn.

48. The flexible cylindrical reinforcement band according to claim 47, wherein the multifilament yarn in said retainers comprise core-sheath filaments, and wherein the sheath comprises the first material with the first melting point and the core comprises the second material with the second melting point.

49. The flexible cylindrical reinforcement band according to claim 47, wherein the multifilament yarn in said retainers comprise filaments including the first material with the first melting point and filaments including the second material with the second melting point.

50. The flexible cylindrical reinforcement band according to claim 39, wherein the yarn in said retainers comprise a staple yarn having fibers.

51. The flexible cylindrical reinforcement band according to claim 50, wherein the staple yarn in said retainers comprise core-sheath fibers, and wherein the sheath comprises the first material with the first melting point and the core comprises the second material with the second melting point.

52. The flexible cylindrical reinforcement band according to claim 50, wherein the staple yarn in said retainers comprise fibers including the first material with the first melting point and fibers including the second material with the second melting point.

53. An axially reinforced cylindrical coil:

a coil of at least one cable making at least three revolutions around the coil; and

a plurality of axially extending reinforcing members, each reinforcing member including;

a structural reinforcing yarn adjacent to the coil, and

a tying reinforcing yarn securing the structural reinforcing yarn to the at least one cable in the coil.

54. The axially reinforced cylindrical coil according to claim 53, wherein the tying reinforcing yarn comprises a first polymer with a first melt temperature polymer and a second polymer with a second melt temperature higher than the first melt temperature.

55. The axially reinforced cylindrical coil according to claim 53, wherein the tying reinforcing yarn is a staple yarn formed of staple fibers.

56. The axially reinforced cylindrical coil according to claim 55, wherein the tying reinforcing yarn comprises a first polymer with a first melt temperature polymer and a second polymer with a second melt temperature higher than the first melt temperature.

57. The axially reinforced cylindrical coil according to claim 56, wherein the first polymer and second polymer are different fibers in the tying reinforcing yarn.

58. The axially reinforced cylindrical coil according to claim 56, wherein staple yarns includes core sheath staple fibers with the core comprising the second polymer and the sheath comprising the first polymer.

59. The axially reinforced cylindrical coil according to claim 53, wherein the tying reinforcing yarn is a multifilament yarn.

60. The axially reinforced cylindrical coil according to claim 59, wherein the tying reinforcing yarn comprises a first polymer with a first melt temperature polymer and a second polymer with a second melt temperature higher than the first melt temperature.

61. The axially reinforced cylindrical coil according to claim 60, wherein the first polymer and second polymer are different filaments in the tying reinforcing yarn.

62. The axially reinforced cylindrical coil according to claim 61, wherein multifilament yarns included core sheath filaments with the core comprising the second polymer and the sheath comprising the first polymer.

63. The axially reinforced cylindrical coil according to claim 53, wherein the structural reinforcing yarn comprises a monofilament yarn.

64. The axially reinforced cylindrical coil according to claim 63, wherein the monofilament yarn comprises a heat set polymer yarn.

65. The axially reinforced cylindrical coil according to claim 63, wherein the monofilament yarn comprises a sheath including a first polymer with a first melt temperature polymer and core including a second polymer with a second melt temperature higher than the first melt temperature.

66. The axially reinforced cylindrical coil according to claim 53, wherein the tying reinforcement yarn is woven around the structural reinforcement yarn and the at least one cable.

67. The axially reinforced cylindrical coil according to claim 53, wherein the tying reinforcement yarn is woven around the structural reinforcement yarn and the at least one cable in a leno weave pattern.

68. The axially reinforced cylindrical coil according to claim 53, wherein the tying reinforcement yarn is knitted around the structural reinforcement yarn and the at least one cable.