A bicycle seat tube assembly and seat post can be arranged to reduce vibrations that originate at the bicycle wheel and are transmitted to the rider of the bicycle. Desirably, a saddle is configured to be supported by a seat post which connects to a bicycle frame at the seat tube assembly. An open c
A bicycle seat tube assembly and seat post can be arranged to reduce vibrations that originate at the bicycle wheel and are transmitted to the rider of the bicycle. Desirably, a saddle is configured to be supported by a seat post which connects to a bicycle frame at the seat tube assembly. An open cavity can be formed between the seat tube assembly and the seat post. The open cavity can be configured to allow the system to act as a spring. Further, spring stiffness can be adjusted to reduce vibrations and increase damping.
대표청구항▼
1. A bicycle assembly, comprising: a main frame having a top tube, a head tube, a down tube, and a seat tube;a seat post comprising first and second ends, the first end configured to connect to a saddle and the second end configured for insertion into the seat tube; anda clamp for securing the seat
1. A bicycle assembly, comprising: a main frame having a top tube, a head tube, a down tube, and a seat tube;a seat post comprising first and second ends, the first end configured to connect to a saddle and the second end configured for insertion into the seat tube; anda clamp for securing the seat post to the seat tube, at a top end of the seat tube;wherein the seat tube is substantially hollow and comprises an inner wall, the seat tube having a first inner dimension at the top end defined by the inner wall that is substantially similar to an outer dimension of an outer wall of the seat post such that the clamp can secure the seat post to the seat tube, the seat tube having a second larger inner dimension below and spaced from the top end, the second larger inner dimension providing a cavity, said cavity defining a space between the outer wall of the seat post and the inner wall of the seat tube below and spaced from the top end of the seat tube, the outer wall being substantially parallel to the inner wall; anda damping material within the cavity, wherein the damping material, the seat post, and the seat tube are configured to decrease vibrations transmitted to a rider of the bicycle. 2. The bicycle assembly of claim 1, wherein said damping material is a solid piece of elastomeric material. 3. The bicycle assembly of claim 2, wherein said damping material occupies substantially the entire volume of the cavity. 4. The bicycle assembly of claim 1, further comprising the saddle. 5. The bicycle assembly of claim 1, wherein the clamp comprises a quick release. 6. The bicycle assembly of claim 1, further comprising a front fork, a front wheel and a rear wheel. 7. The bicycle assembly of claim 1, further comprising a front fork. 8. The bicycle assembly of claim 1, wherein the seat post has a substantially constant outer dimension. 9. The bicycle assembly of claim 1, wherein the seat tube has a bulge or expanded area at said second larger inner dimension. 10. The bicycle assembly of claim 1, wherein the cavity extends all the way around the seat tube. 11. The bicycle assembly of claim 1, wherein the cavity is larger on one side as compared to the other sides. 12. The bicycle assembly of claim 11, wherein the cavity is larger in a front side. 13. The bicycle assembly of claim 1, wherein the seat tube has a circular cross-section at said top end and an oval cross-section at said second larger inner dimension. 14. A bicycle assembly comprising: a top tube;a down tube;a head tube connected to said top tube and said down tube;a seat tube connected to said top tube and said down tube;a fork assembly configured for insertion into said head tube;a seat post configured to connect to a saddle at a first end and a second end configured for insertion into said seat tube; anda clamp configured to secure said seat post within said seat tube;wherein said seat tube is configured to secure said seat post substantially only at the clamp, the seat tube defining a bulge spaced from the clamp, said bulge in the seat tube forming a space between the seat post and the seat tube within said seat tube; anda damping member positioned within the seat tube at the bulge and in said space between the seat tube and the seat post. 15. The bicycle assembly of claim 14, further comprising an inner tube configured to fit between the seat post and the seat tube. 16. The bicycle assembly of claim 15, wherein the inner tube comprises an elastomer. 17. The bicycle assembly of claim 14, wherein the clamp comprises a quick release. 18. The bicycle assembly of claim 14, wherein the seat post has a substantially constant outer dimension. 19. The bicycle assembly of claim 14, wherein the cavity extends all the way around the seat tube. 20. The bicycle assembly of claim 14, wherein the cavity is larger on one side as compared to the other sides. 21. The bicycle assembly of claim 14, wherein the seat tube has a circular cross-section at said top end and an oval cross-section at said second larger inner dimension. 22. A bicycle assembly, comprising: a main frame having a top tube, a head tube, a down tube, and a seat tube;a seat post comprising first and second ends, the first end configured to connect to a saddle and the second end configured for insertion into the seat tube; anda clamp for securing the seat post to the seat tube;wherein the seat tube comprises a first tube, a second tube, and a cavity, said cavity is located at a position below and spaced away from the clamp, said cavity defines a space between an outer wall of the seat post and an inner wall of the first tube of the seat tube, the cavity positioned at a bulge in the seat tube, the second tube positioned within said first tube and configured to be between the first tube and the seat post, the second tube comprising an elastomer; andwherein the seat tube is configured to decrease vibrations transmitted to a rider of the bicycle. 23. The bicycle assembly of claim 22, further comprising a damping material within the cavity. 24. The bicycle assembly of claim 23, wherein said damping material is a solid piece of elastomeric material. 25. The bicycle assembly of claim 22, further comprising the saddle. 26. The bicycle assembly of claim 22, wherein the clamp comprises a quick release. 27. The bicycle assembly of claim 22, further comprising a front fork, a front wheel and a rear wheel. 28. The bicycle assembly of claim 22, wherein the cavity extends all the way around the seat tube. 29. The bicycle assembly of claim 22, wherein the cavity is larger on one side as compared to the other sides.
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이 특허에 인용된 특허 (77)
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