Treadmill belt

• US 7,549,938 B2
• Filed: 01/07/2003
• Issued: 06/23/2009
• Est. Priority Date: 01/07/2003
• Status: Active Grant

• Current Assignee: Forbo Siegling, LLC (Forbo Holding AG)
• Original Assignee: Forbo Financial Services AG
• Inventors: Canipe, Sandra Vause, Leighton, Jay Philip
• Primary Examiner(s): Johnson; Vicky A
• Application Number:
  US10/337,706
• Publication Number:
  US 20040132587A1
• Time in Patent Office: 2,359 Days
• Field of Search: 474/268, 482/54, 198/850, 198/853
• US Class Current: 474/268
• CPC Class Codes: A63B 22/02 with movable endless bands , e.g. treadmills other training appliances for running on the spot A63B69/0028
• CPC Class Codes: A63B 22/0207 having shock absorbing means
• CPC Class Codes: A63B 22/0285 Physical characteristics of the belt, e.g. material, surface, indicia
• CPC Class Codes: B29D 29/00 Producing belts or bands

Abstract

An endless treadmill belt includes a bottom-ply fabric that at least partially forms a bottom surface of the belt, and the bottom surface of the belt is for sliding across a treadmill deck. The bottom-ply fabric includes textured synthetic yarns that at least partially form the bottom surface of the belt. A solid lubricant composition is impregnated in the bottom-ply fabric. The solid lubricant composition is a mixture that includes higher and lower viscosity lubricants and a binder.

Claims

1. A belt for extending in a longitudinal direction and traveling relative to a deck, the belt comprising:

a fabric that at least partially forms a bottom surface of the belt and is for sliding across the deck; and

an at least substantially solid lubricant composition impregnated substantially throughout the thickness of the fabric and at least partially forming the bottom surface of the belt, wherein the lubricant composition includes at least one higher viscosity lubricant and at least one lower viscosity lubricant, with the higher viscosity lubricant having a higher viscosity than the lower viscosity lubricant, and the lubricant composition being a substantially uniformly dispersed mixture.

2. A belt according to claim 1, wherein the higher viscosity lubricant includes carnauba wax and the lower viscosity lubricant includes silicone lubricant.

3. A belt according to claim 2, wherein the lubricant composition further includes at least one binder.

4. A belt according to claim 1, wherein the higher viscosity lubricant includes a wax.

5. A belt according to claim 4, wherein the wax is selected from the group of animal, vegetable and mineral waxes.

6. A belt according to claim 1, wherein the higher viscosity lubricant includes carnauba wax.

7. A belt according to claim 1, wherein the higher viscosity lubricant is present in the lubricant composition in an amount ranging from about 30 weight percent to about 60 weight percent.

8. A belt according to claim 1, wherein the lower viscosity lubricant is selected from the group of silicones, mineral oils, polyglycols and mixtures thereof.

9. A belt according to claim 1, wherein the lower viscosity lubricant includes silicone lubricant.

10. A belt according to claim 1, wherein the lower viscosity lubricant is present in the lubricant composition in an amount ranging about 10 weight percent to about 30 weight percent.

11. A belt according to claim 1, wherein the lubricant composition further includes at least one binder.

12. A belt according to claim 11, wherein the binder is selected from the group of polyurethanes, acrylic polymers, vinyl polymers and mixtures and copolymers thereof.

13. A belt according to claim 11, wherein the binder is polyurethane.

14. A belt according to claim 11, wherein the binder is present in the lubricant composition in an amount ranging from about 10 weight percent to about 50 weight percent.

15. A belt for extending in a longitudinal direction and traveling relative to a deck, the belt comprising:

a fabric that at least partially forms a bottom surface of the belt and is for sliding across the deck; and

an at least substantially solid lubricant composition impregnated in the fabric and at least partially forming the bottom surface of the belt,

wherein the lubricant composition includes

at least one higher viscosity lubricant,

at least one lower viscosity lubricant, with the higher viscosity lubricant having a higher viscosity than the lower viscosity lubricant,

at least one binder, and

at least one bonding agent, and

the lubricant composition being a substantially uniformly dispersed mixture.

16. A belt according to claim 15, wherein the bonding agent is selected from the group of polyisocyanates, diisocyantes, peroxides, epoxies, polyfunctional amides and mixtures thereof.

17. A belt according to claim 15, wherein the bonding agent is polyisocyanate.

18. A belt according to claim 15, wherein the bonding agent is present in the lubricant composition in an amount ranging from about 2.5 to 10.0 weight percent.

19. A belt for extending in a longitudinal direction and traveling relative to a deck, the belt comprising:

a fabric that at least partially forms a bottom surface of the belt and is for sliding across the deck; and

an at least substantially solid lubricant composition impregnated substantially throughout the thickness of the fabric and at least partially forming the bottom surface of the belt,

wherein the lubricant composition includes a binder and silicone lubricant,

and the lubricant composition is a substantially uniformly dispersed mixture.

20. A belt according to claim 19, wherein the lubricant composition further includes at least one higher viscosity lubricant which has a higher viscosity than the silicone lubricant.

21. A belt according to claim 20, wherein the higher viscosity lubricant is carnauba wax.

22. A belt according to claim 19, wherein the binder is selected from the group of polyurethanes, acrylic polymers, vinyl polymers and mixtures and copolymers thereof.

23. A belt according to claim 19, wherein the binder is polyurethane.

24. A belt for extending in a longitudinal direction and traveling relative to a deck, the belt comprising:

a fabric that at least partially forms a bottom surface of the belt and is for sliding across the deck; and

an at least substantially solid lubricant composition impregnated in the fabric and at least partially forming the bottom surface of the belt,

wherein the lubricant composition includes

a binder,

a silicone lubricant, and

at least one bonding agent, and

the lubricant composition is a substantially uniformly dispersed mixture.

25. A belt according to claim 24, wherein the bonding agent is selected from the group of polyisocyanates, diisocyantes, peroxides, epoxies, polyfunctional amides and mixtures thereof.

26. A belt according to claim 24, wherein the bonding agent is polyisocyanate.