Flexurally elastic drive belt

Patent metadata

Field	Value
Publication number	US-10060506-B2
Application number	US-65928110-A
Country	US
Kind code	B2
Filing date	Mar 3, 2010
Priority date	Sep 8, 2007
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A flexurally elastic drive belt ( 1 ) has a cover layer ( 2 ), a reinforcement layer ( 3 ) formed of individual cords ( 4 ) and a substructure ( 5 ). The substructure can include ribs ( 6 ) and grooves ( 7 ). The drive belt is further provided with a textile overlay on the working side ( 8 ) thereof that is susceptible to wear. The textile overlay ( 10 ; section B of FIG. 1 ) of the drive belt ( 1 ) combines a very durable resistance to wear and a noise attenuation especially for wet noises. This is achieved in that the overlay has, in a state in advance of fabrication and vulcanization, an elongation at tear of at least 30% in the longitudinal direction and of at least 100% in the transverse direction and is made of a textile material including staple fibers in a proportion in terms of quantity of at least 30% by weight.

First claim

What is claimed is:

1. A flexurally elastic drive belt comprising:
a belt body defining a longitudinal direction and having a work side subject to wear during operational use of said drive belt;
a textile overlay disposed on said work side of said drive belt;
in a state in advance of fabrication and in advance of vulcanization, said textile overlay having an elongation at tear in said longitudinal direction of at least 30% and an elongation at tear in a transverse direction of at least 100%;
said textile overlay being made of a textile material which includes staple fibers in a proportion in terms of quantity of at least 70% by weight;
said textile overlay comprises a sheet-like structure in the form of a woven fabric;
wherein said staple fibers comprise: (i) cellulose, or (ii) cotton and cellulose,
wherein the sheet-like structure is additionally provided with an elastic textile component,
wherein the textile material is selected from the group consisting of yarns and twisted yarns,
wherein the elastic textile component consists of polyurethane (PU), and
wherein cellulose is in the form of hemp, flax, or sisal or in the form of blends of two or more of hemp, flax, and sisal.

2. The drive belt of claim 1 , further comprising a reinforcement embedded in said body to take up tension loads.

3. The drive belt of claim 1 , wherein the elongation at tear in said longitudinal direction is at least 70%.

4. The drive belt of claim 1 , wherein the elongation at tear in said longitudinal and transverse directions is at least 110%.

5. The drive belt of claim 1 , wherein the elongation at tear in said longitudinal and transverse directions is at least 130%.

6. The drive belt of claim 1 , wherein the elongation at tear in said longitudinal direction is at least 150%.

7. The drive belt of claim 1 , wherein the textile material takes the form of yarns.

8. The drive belt of claim 1 , wherein the textile material takes the form of twisted yarns.

9. The drive belt of claim 1 , wherein the sheet-like structure comprises cellulose and the elastic textile component and said staple fibers comprise cellulose.

10. The drive belt of claim 1 , wherein said drive belt comprises an elastomeric material based on an ethylene-propylene copolymer (EPM) or an ethylene-propylene-diene copolymer (EPDM).

11. The drive belt of claim 1 , further comprising an elastomeric material based on polychloroprene (CR).

12. The drive belt of claim 1 , wherein the textile overlay is provided or impregnated with an adhesive.

13. The drive belt of claim 1 , wherein the textile overlay is uncoated.

14. The drive belt of claim 1 , wherein the textile overlay is coated.

15. The drive belt of claim 14 , wherein the coating of the textile overlay is based on a sealing composition.

16. The drive belt of claim 15 , wherein the sealing composition consists of an elastomeric material.

17. The drive belt of claim 16 , wherein the sealing composition consists of a fluoroelastomer.

18. The drive belt of claim 1 , wherein the textile overlay is provided or impregnated with a polymer solution.

19. The drive belt of claim 1 , wherein the textile overlay is of a seamless configuration.

20. The drive belt of claim 1 , wherein the textile overlay is impregnated with an electrically conductive adhesive or an electrically conductive polymer solution.

21. A flexurally elastic V-ribbed drive belt comprising:
a belt body defining a longitudinal direction and having a ribbed work side subject to wear during operational use of said drive belt;
a textile overlay disposed on said ribbed work side;
in a state in advance of fabrication and in advance of vulcanization, said textile overlay having an elongation at tear in said longitudinal direction of at least 30% and an elongation at tear in a transverse direction of at least 100%;
said textile overlay being made of a textile material which includes staple fibers in a proportion in terms of quantity of at least 70% by weight;
said textile overlay comprises a sheet-like structure in the form of a woven fabric;
wherein the staple fibers comprise: (i) cellulose, or (ii) cotton and cellulose,
wherein the sheet-like structure is additionally provided with an elastic textile component,
wherein the textile material is selected from the group consisting of yarns and twisted yarns,
wherein the elastic textile component consists of polyurethane (PU), and
wherein cellulose is used in the form of hemp, flax, or sisal or in the form of blends of two or more of hemp, flax, and sisal.

22. The drive belt of claim 21 , further comprising a reinforcement embedded in said body to take up tension loads.

23. The drive belt of claim 21 , wherein the elongation at tear in said longitudinal direction is at least 70%.

24. The drive belt of claim 21 , wherein the elongation at tear in said longitudinal and transverse directions is at least 110%.

25. The drive belt of claim 21 , wherein the elongation at tear in said longitudinal and transverse directions is at least 130%.

26. The drive belt of claim 21 , wherein the elongation at tear in said longitudinal direction is at least 150%.

27. The drive belt of claim 21 , wherein the textile material takes the form of yarns.

28. The drive belt of claim 21 , wherein the textile material takes the form of twisted yarns.

29. The drive belt of claim 21 , wherein the sheet-like structure comprises cellulose and the elastic textile component and said staple fibers comprise cellulose.

30. The drive belt of claim 21 , wherein said drive belt comprises an elastomeric material based on an ethylene-propylene copolymer (EPM) or an ethylene-propylene-diene copolymer (EPDM).

31. The drive belt of claim 21 , further comprising an elastomeric material based on polychloroprene (CR).

32. The drive belt of claim 21 , wherein the textile overlay is provided or impregnated with an adhesive.

33. The drive belt of claim 21 , wherein the textile overlay is uncoated.

34. The drive belt of claim 21 , wherein the textile overlay is coated.

35. The drive belt of claim 34 , wherein the coating of the textile overlay is based on a sealing composition.

36. The drive belt of claim 35 , wherein the sealing composition consists of an elastomeric material.

37. The drive belt of claim 36 , wherein the sealing composition consists of a fluoroelastomer.

38. The drive belt of claim 21 , wherein the textile overlay is provided or impregnated with a polymer solution.

39. The drive belt of claim 21 , wherein the textile overlay is of a seamless configuration.

40. The drive belt of claim 21 , wherein the textile overlay is impregnated with an electrically conductive adhesive or an electrically conductive polymer solution.

41. The drive belt of claim 1 , wherein the textile material takes the form of twisted union yarns.

42. The drive belt of claim 1 , wherein the sheet-like structure consists of: (i) cotton, cellulose, and polyurethane (PU), (ii) aramid, cellulose, and PU, or (iii) cellulose and PU.

Assignees

• Kanzow Henning
• Schleicher Marko
• Teves Reinhard
• Mahnken Claus Lueder
• Contitech Antriebssysteme Gmbh

Inventors

• Kanzow Henning
• Schleicher Marko
• Teves Reinhard
• Mahnken Claus-Lüder

Classifications

• F16G5/20 Primary

  with a contact surface of special shape, e.g. toothed · CPC title

• F16G5/08

  with textile reinforcement · CPC title