A bicycle control device for use with a road bicycle includes a hydraulic brake control device and a shift control device. The brake and shift control devices are disposed within a housing. The brake control device includes a master cylinder arranged in the housing. A piston assembly includes a pist
A bicycle control device for use with a road bicycle includes a hydraulic brake control device and a shift control device. The brake and shift control devices are disposed within a housing. The brake control device includes a master cylinder arranged in the housing. A piston assembly includes a piston slidably disposed within the master cylinder. A brake lever is operatively coupled to the piston such that the brake lever pulls the piston from a rest position to an actuated position.
대표청구항▼
1. A bicycle control device for use with a road bicycle, the bicycle control device comprising: a housing configured to be attached to a handlebar of the road bicycle;a hydraulic brake control device including: a master cylinder arranged in the housing,a piston assembly including a piston slidably d
1. A bicycle control device for use with a road bicycle, the bicycle control device comprising: a housing configured to be attached to a handlebar of the road bicycle;a hydraulic brake control device including: a master cylinder arranged in the housing,a piston assembly including a piston slidably disposed within the master cylinder, anda brake lever operatively coupled to the piston such that the brake lever pulls the piston from a rest position to an actuated position; anda shift control device disposed in the housing,wherein if the brake lever becomes over-extended the piston is effectively decoupled from the brake lever to inhibit damage to internal components of the hydraulic brake control device. 2. The bicycle control device of claim 1, wherein the piston assembly includes: a piston including a piston cap and a piston body coupled together; and a piston rod having a first end coupled to the piston body and a second end coupled to the brake lever, the first end of the piston rod spaced apart from the piston cap. 3. The bicycle control device of claim 2, wherein the brake lever is configured to contact a stop element before the first end of the piston rod contacts the piston cap. 4. The bicycle control device of claim 1, wherein the piston assembly includes a piston rod including a piston engaging portion, a shaft, and a threaded portion, the piston engaging portion coupled to the piston and the threaded portion threadingly coupled to the brake lever to adjust a rest position of the brake lever. 5. The bicycle control device of claim 4, wherein the piston engaging portion includes a ball rotatably coupled to the piston. 6. The bicycle control device of claim 4, wherein the piston is supported by first and second bushings as the piston moves between the rest position and the actuated position, and wherein the piston engaging portion of the piston rod is arranged between the first and second bushings and as the piston assembly moves between the rest position and the actuated position. 7. The bicycle control device of claim 1, wherein the piston assembly includes a first seal between the piston and the master cylinder. 8. The bicycle control device of claim 7, wherein the first seal is a cup seal. 9. The bicycle control device of claim 1, wherein the master cylinder includes a master cylinder sleeve disposed in the housing, the master cylinder sleeve including a master cylinder bore, the piston slidably disposed within the master cylinder bore. 10. The bicycle control device of claim 9, further comprising an adjuster operatively coupled with the master cylinder sleeve to adjust the master cylinder sleeve between a first deadband position and a second deadband position. 11. The bicycle control device of claim 10, wherein the piston assembly includes a first seal between the piston and the master cylinder sleeve, the master cylinder sleeve including at least one port providing fluid communication between a hydraulic fluid reservoir and the master cylinder bore, and when the master cylinder sleeve is in the first deadband position, the at least one port is closer to the first seal than when the master cylinder sleeve is in the second deadband position. 12. The bicycle control device of claim 11, wherein the adjuster includes threads on the master cylinder sleeve threadingly received in the housing, the master cylinder sleeve threadable between the first and second deadband positions. 13. The bicycle control device of claim 10, wherein a rest positon of the brake lever is not affected by the adjustment of the master cylinder sleeve. 14. The bicycle control device of claim 9, wherein the master cylinder sleeve includes at least one port providing fluid communication between a hydraulic fluid reservoir and the master cylinder bore. 15. The bicycle control device of claim 1, further comprising a fluid outlet passageway, wherein the piston assembly defines a brake piston axis, and wherein the fluid outlet passageway is arranged substantially perpendicular to the brake piston axis. 16. The bicycle control device of claim 1, further comprising a reach adjust mechanism operatively connected to the brake lever for adjusting a rest position of the brake lever relative to the handlebar independently of the position of the master cylinder. 17. The bicycle control device of claim 16, wherein the piston assembly includes a piston rod having a threaded portion, wherein the brake lever includes a bracket coupled to the reach adjustment mechanism that includes a reach adjustment ball having a threaded reach aperture, the threaded portion of the piston rod threaded into the threaded reach aperture of the reach adjustment ball. 18. The bicycle control device of claim 1, wherein the housing includes a horn portion including a hydraulic fluid reservoir. 19. The bicycle control device of claim 18, further comprising a reservoir cap coupled to the horn portion to cover the hydraulic fluid reservoir; and a diaphragm arranged between the hydraulic fluid reservoir and the reservoir cap. 20. A bicycle control device for use with a road bicycle, comprising: a housing having a handlebar mounting portion at a first end of the housing, a horn portion at a second end of the housing, and a gripping portion disposed between the handlebar mounting portion and the horn portion;a master cylinder arranged in the housing;a piston assembly including a piston slidably disposed within the master cylinder;an actuator operatively coupled to the piston to slidably displace the piston between a rest position and an actuated position; andan adjuster operatively coupled to the master cylinder to adjust the master cylinder relative to the piston assembly,wherein if the brake lever becomes over-extended the piston is effectively decoupled from the brake lever to inhibit damage to internal components of the bicycle control device. 21. The bicycle control device of claim 20, wherein the piston assembly includes: a piston including a piston cap and a piston body coupled together; and a piston rod having a first end coupled to the piston body and a second end coupled to the actuator, the first end of the piston rod spaced apart from the piston cap. 22. The bicycle control device of claim 21, wherein the brake lever is configured to contact a stop element before the first end of the piston rod contacts the piston cap. 23. The bicycle control device of claim 20, wherein the piston assembly includes a piston rod including a piston engaging portion, a shaft, and a threaded portion, the piston engaging portion coupled to the piston and the threaded portion threadingly coupled to the actuator to adjust a rest position of the brake lever. 24. The bicycle control device of claim 23, wherein the piston engaging portion includes a ball rotatably coupled to the piston. 25. The bicycle control device of claim 23, wherein the piston is supported by first and second bushings as the piston moves between the rest position and the actuated position, and wherein the piston engaging portion of the piston rod is arranged between the first and second bushings as the piston moves between the rest position and the actuated position. 26. The bicycle control device of claim 20, wherein the piston assembly includes a first seal between the piston and the master cylinder. 27. The bicycle control device of claim 26, wherein the first seal is a cup seal. 28. The bicycle control device of claim 20, further comprising a shift control device positioned in the housing. 29. The bicycle control device of claim 20, further comprising a fluid outlet passageway received in the housing; and wherein the piston defines a brake piston axis, and wherein the fluid outlet passageway is arranged substantially perpendicular to the brake piston axis. 30. The bicycle control device of claim 20, wherein the actuator includes a brake lever coupled to the housing, wherein a rest position of the brake lever relative to the housing is adjustable independent of the position of the master cylinder. 31. The bicycle control device of claim 30, wherein the piston assembly includes a piston rod including a threaded portion, and wherein the brake lever includes a bracket coupled to a reach adjustment mechanism including a reach adjustment ball having a threaded reach aperture, the threaded portion of the piston rod threaded into the threaded reach aperture of the reach adjustment ball. 32. The bicycle control device of claim 20, wherein the actuator is arranged to pull the piston from the rest position toward the actuated position. 33. The bicycle control device of claim 20, wherein the horn portion of the housing includes a hydraulic fluid reservoir. 34. The bicycle control device of claim 33, further comprising a reservoir cap coupled to the horn portion to cover the hydraulic fluid reservoir; and a diaphragm arranged between the hydraulic fluid reservoir and the reservoir cap. 35. A bicycle control device for use with a road bicycle, comprising: a housing having a handlebar mounting portion at a first end of the housing, a horn portion at a second end of the housing, and a gripping portion disposed between the handlebar mounting portion and the horn portion;a master cylinder arranged in the housing;a piston assembly including a piston slidably disposed within the master cylinder;an actuator operatively coupled to the piston to slidably displace the piston between a rest position and an actuated position; andan adjuster operatively coupled to the master cylinder to adjust the master cylinder relative to the piston assembly, wherein the master cylinder includes a master cylinder sleeve disposed within the housing, the adjuster operatively coupled to the master cylinder sleeve to adjust the master cylinder sleeve relative to the piston assembly, the master cylinder sleeve including a master cylinder bore, the piston slidably disposed within the master cylinder bore,wherein the adjuster adjusts the master cylinder sleeve between the first deadband position and the second deadband position,wherein the actuator includes a brake lever coupled to the housing, wherein the piston assembly includes a first seal between the piston and the master cylinder sleeve, wherein the master cylinder sleeve includes at least one port providing fluid communication between a hydraulic fluid reservoir and the master cylinder bore, and wherein when the master cylinder sleeve is in the first deadband position, the at least one port is closer to the first seal than when the master cylinder sleeve is in the second deadband position, andwherein the adjuster includes threads on the master cylinder sleeve threadingly received in the housing, the master cylinder sleeve threadable between first and second deadband positions. 36. The bicycle control device of claim 27, wherein a rest position of the brake lever is not affected by the adjustment of the master cylinder sleeve. 37. The bicycle control device of claim 27, wherein the master cylinder sleeve includes at least one port providing fluid communication between a hydraulic fluid reservoir and the master cylinder bore. 38. A bicycle control device for use with a road bicycle, the bicycle control device comprising: a housing having a handlebar mounting portion at a first end of the housing, a horn portion at a second end of the housing, and a gripping portion disposed between the handlebar mounting portion and the horn portion, the housing including a master cylinder aperture and a hydraulic fluid reservoir;a master cylinder sleeve disposed in the master cylinder aperture, the master cylinder sleeve defining a master cylinder bore;a piston assembly including a piston slidably disposed within the master cylinder bore;an actuator operatively coupled to the piston to slidably displace the piston between a rest position and an actuated position, andan adjuster operatively coupled to the master cylinder sleeve to adjust the master cylinder sleeve between a first deadband position and a second deadband position,wherein the actuator includes a brake lever coupled to the housing, wherein the master cylinder sleeve includes a least one port providing fluid communication between the hydraulic fluid reservoir and the master cylinder bore, wherein the piston assembly includes a first seal between the piston and the master cylinder bore, and wherein when the master cylinder sleeve is in the first deadband position, the at least one port is closer to the first seal than when the master cylinder sleeve is in the second deadband position,wherein the adjuster includes threads on the master cylinder sleeve threadingly received in the master cylinder aperture of the housing, the master cylinder sleeve threadable between the first and second deadband positions. 39. The bicycle control device of claim 38, wherein the rest position of the actuator is not affected by the adjustment of the master cylinder sleeve. 40. The bicycle control device of claim 38, wherein the adjuster includes threads on the master cylinder sleeve threadingly received in the master cylinder aperture of the housing, the master cylinder sleeve threadable between the first and second deadband positions. 41. The bicycle control device of claim 38, wherein the actuator includes a brake lever coupled to the housing, and wherein if the brake lever becomes over-extended, the piston assembly is effectively decoupled from the brake lever to inhibit damage to internal components of the bicycle control device. 42. The bicycle control device of claim 41, wherein the piston assembly includes: a piston including a piston cap and a piston body coupled together; and a piston rod having a first end coupled to the piston body and a second end coupled to the brake lever, the first end of the piston rod spaced apart from the piston cap. 43. The bicycle control device of claim 42, wherein the brake lever is configured to contact a stop element before the first end of the piston rod contacts the piston cap. 44. The bicycle control device of claim 38, wherein the piston assembly includes a piston rod including a piston engaging portion, a shaft, and a threaded portion, the piston engaging portion coupled to the piston and the threaded portion threadingly coupled to the actuator to adjust a rest position of the actuator. 45. The bicycle control device of claim 44, wherein the piston engaging portion includes a ball rotatably coupled to the piston. 46. The bicycle control device of claim 44, wherein the piston is supported by first and second bushings as the piston displaces between the rest position and the actuated position, and wherein the piston engaging portion of the piston rod is arranged between the first and second bushings as the piston displaces between the rest position and the actuated position. 47. The bicycle control device of claim 38, wherein the piston assembly includes a first seal between the piston assembly and the master cylinder bore. 48. The bicycle control device of claim 47, wherein the first seal is a cup seal. 49. The bicycle control device of claim 38, further comprising a shift control device positioned in the housing. 50. The bicycle control device of claim 38, wherein the master cylinder sleeve includes at least one port providing fluid communication between the hydraulic fluid reservoir and the master cylinder bore. 51. The bicycle control device of claim 38, further comprising a fluid outlet passageway, wherein the piston assembly defines a piston axis, and wherein the fluid outlet passageway is arranged substantially perpendicular to the piston axis. 52. The bicycle control device of claim 38, wherein the rest position of the actuator relative to the housing is adjustable independent of the position of the master cylinder sleeve. 53. The bicycle control device of claim 52, wherein the piston assembly includes a piston rod defining a threaded portion, and wherein the actuator includes a brake lever including a bracket coupled to a reach adjustment mechanism including a reach adjustment ball having a threaded reach aperture, the threaded portion of the piston rod threaded into the threaded reach aperture of the reach adjustment ball. 54. The bicycle control device of claim 38, wherein the hydraulic fluid reservoir is disposed in the horn portion of the housing. 55. The bicycle control device of claim 54, further comprising a reservoir cap coupled to the horn portion to cover the hydraulic fluid reservoir; and a diaphragm arranged between the hydraulic fluid reservoir and the reservoir cap.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (7)
Buckley James A. ; Hinkens George H. ; Johnson Korey, Bicycle brake system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.