TW201711900A - Bicycle operating device - Google Patents

Abstract

A bicycle operating device comprises a base member, a hydraulic cylinder, a piston, and a fluid passageway. The base member is configured to be mounted to a bicycle. The hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided in the cylinder bore. The cylinder bore and the piston define a hydraulic chamber. The fluid passageway is connected to the hydraulic chamber. The fluid passageway is provided inside the base member. The fluid passageway has a length longer than a stroke of the piston.

Description

Bicycle operating device

The present invention relates to a bicycle operating device.

Bicycles are becoming an increasingly popular form of entertainment and a means of transportation. In addition, bicycle activities have become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation or competition, the bicycle industry continues to improve the various components of the bicycle. One bicycle component that has been extensively redesigned is the operating device.

According to a first aspect of the invention, a bicycle operating device includes a base member, a hydraulic cylinder, a piston, and a fluid passage. The base member is constructed to be mounted to the bicycle. A hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided in the bore of the cylinder. The cylinder bore and the piston define a hydraulic chamber. The fluid passage is connected to the hydraulic chamber. A fluid passage is provided inside the base member. Fluid channel has a long length The length of the stroke of the piston.

With the bicycle operating device according to the first aspect, it is possible to apply the base member as a region providing a fluid passage and to maintain a desired length of the fluid passage. Therefore, it is possible to compact the bicycle operating device and maintain the desired length of the fluid passage. Furthermore, it is possible to connect a hydraulic hose to the fluid passage at a preferred location of the base member.

In accordance with another aspect of the invention, a bicycle operating device includes a base member, a hydraulic cylinder, a piston, and a fluid passage. The base member is constructed to be mounted to the bicycle. A hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided in the bore of the cylinder. The cylinder bore and the piston define a hydraulic chamber. The fluid passage is connected to the hydraulic chamber. A fluid passage is provided inside the base member. The fluid passage includes a first portion and a second portion in the fluid passage that is further from the bore of the cylinder than the first portion. The first portion extends to taper toward the second portion. The second portion extends to taper toward the first portion.

With the bicycle operating device according to this aspect, it is possible to apply the base member as an area providing a fluid passage. Further, it is possible to easily remove the first core and the second core portion configured to form the first portion and the second portion during formation of the base member after the formation of the base member. Therefore, it is possible to easily form a fluid passage and to tighten the bicycle operating device.

In accordance with still another aspect of the present invention, a bicycle operating device includes a base member, a hydraulic cylinder, a piston, and a fluid passage. Base member The construction is mounted to the bicycle and includes a peripheral surface. A hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided in the bore of the cylinder. The cylinder bore and the piston define a hydraulic chamber. The fluid passage is connected to the hydraulic chamber. A fluid passage is provided inside the base member to extend at least partially between the outer peripheral surface and the bore of the cylinder.

With the bicycle operating device according to this aspect, it is possible to apply the base member as a region providing a fluid passage and to maintain a desired length of the fluid passage. Therefore, it is possible to tighten the bicycle operating device and maintain the desired length of the fluid passage. Furthermore, it is possible to connect the hydraulic hose to the fluid passage at a preferred location of the base member.

According to a second aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the base member includes an inner peripheral surface provided in the base member and defining a fluid passage.

With the bicycle operating device according to the second aspect, it is possible to effectively apply the base member as a region of the fluid passage.

According to a third aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the base member comprises a base body and a pipe portion, the tube portion being at least partially disposed in the base body and integrated with the base body Provided. The tube portion includes an inner peripheral surface.

With the bicycle operating device according to the third aspect, it is possible to easily form a fluid passage.

According to a fourth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the fluid passage comprises a first portion and a second portion, the second portion being further away from the cylinder in the fluid passage than the first portion Tube hole.

With the bicycle operating device according to the fourth aspect, it is possible to effectively utilize a portion of the base member that is further away from the bore of the cylinder as an area that provides a fluid passage.

According to a fifth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the first portion extends to taper toward the second portion. The second portion extends to taper toward the first portion.

With the bicycle operating device according to the fifth aspect, it is possible to easily remove the first core portion and the second core portion configured to form the first portion and the second portion during formation of the base member after the formation of the base member.

According to a sixth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the first portion extends in the first direction. The second portion extends in a second direction that is different from the first direction.

With the bicycle operating device according to the sixth aspect, it is possible to configure the fluid passage along the shape of the base member, which improves the design freedom of the fluid passage.

According to a seventh aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that at least one of the first portion and the second portion extends linearly.

With the bicycle operating device according to the seventh aspect, it is possible to easily form at least one of the first portion and the second portion.

According to an eighth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the fluid passage further comprises a first Partially connected to the third part of the second part.

With the bicycle operating device according to the eighth aspect, even if the first portion is spaced apart from the second portion, it is possible to connect the first portion to the second portion to urge the first portion to communicate with the second portion.

According to a ninth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the first portion has a first inner diameter. The second portion has a second inner diameter. The third portion has a third inner diameter that is different from each of the first inner diameter and the second inner diameter.

With the bicycle operating device according to the ninth aspect, it is possible to easily form the connecting portion that connects the first portion to the second portion by using the third portion.

According to a tenth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the third inner diameter is larger than each of the first inner diameter and the second inner diameter.

With the bicycle operating device according to the tenth aspect, it is possible to more easily form the connecting portion that connects the first portion to the second portion by using the third portion.

According to an eleventh aspect of the present invention, a bicycle operating device according to any of the above aspects is constructed such that the base member includes a first side surface and laterally opposite the first side surface in a mounted state in which the bicycle operating device is mounted to the bicycle The opposite second side surface. A cylinder bore is provided between the first side surface and the second side surface. The first portion is provided between the first side surface and the bore of the cylinder. The second portion and the third portion are closer to the first side surface than the second side surface.

With the bicycle operating device according to the eleventh aspect, it is possible to effectively use the base member as a region providing the first to third portions.

According to a twelfth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the base member includes the first side surface, and the first side surface is laterally mounted in a mounted state in which the bicycle operating device is mounted to the bicycle The opposite second side surface. A cylinder bore is provided between the first side surface and the second side surface. The first portion is provided between the second side surface and the bore of the cylinder. The third portion is closer to the second side surface than the first side surface. The second portion extends from the third portion toward the first side surface.

With the bicycle operating device according to the twelfth aspect, it is possible to effectively use the base member as an area providing the first to third portions.

According to a thirteenth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the fluid passage further comprises connecting the cylinder bore to the fourth portion of the first portion.

With the bicycle operating device according to the thirteenth aspect, it is possible to connect the cylinder bore to the first portion via the fourth portion.

According to a fourteenth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the fourth portion extends perpendicularly from the cylinder bore.

With the bicycle operating device according to the fourteenth aspect, it is possible to effectively utilize the radially outer region of the cylinder bore in the base member.

According to a fifteenth aspect of the invention, according to the above aspect Any of the bicycle operating devices is constructed such that the first portion extends perpendicularly from the fourth portion.

With the bicycle operating device according to the fifteenth aspect, it is possible to improve the design freedom of the configuration of the fluid passage.

According to a sixteenth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the base member includes a first end, a second end, a grip portion, and an outlet port. The second end is opposite the first end and is constructed to be mounted to the handlebar of the bicycle. A grip portion is provided between the first end and the second end. The outlet port is connected to the fluid channel and is provided at the second end.

With the bicycle operating device according to the sixteenth aspect, it is possible to introduce hydraulic pressure to the hydraulic bicycle assembly via the outlet port of the base member.

According to a seventeenth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the base member is made of a resin material.

With the bicycle operating device according to the seventeenth aspect, it is possible to easily form the base member and save the weight of the base member.

According to an eighteenth aspect of the invention, the bicycle operating device according to any of the above aspects further comprising a cover member attached to the base member to at least partially cover the base member. The cover member is at least partially made of an elastic material.

With the bicycle operating device according to the eighteenth aspect, it is possible to improve the knight's operation of the bicycle operating device and/or the knight to easily grasp The comfort of the bicycle operating device.

According to a nineteenth aspect of the invention, the bicycle operating device according to any of the above aspects further includes a shifting unit to operate the shifting device.

With the bicycle operating device according to the nineteenth aspect, it is possible to operate the shifting device in addition to the hydraulic bicycle assembly.

According to a twentieth aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the piston is movable in a moving direction with respect to the cylinder bore. The hydraulic chamber has a chamber axial length defined in the direction of movement. The length of the fluid passage is longer than the axial length of the chamber.

With the bicycle operating device according to the twentieth aspect, it is possible to effectively apply the base member as a region providing a fluid passage and maintain a desired length of the fluid passage.

According to a twenty-first aspect of the invention, the bicycle operating device according to any of the above aspects is constructed such that the cylinder bore has an axial length of the cylinder defined in the moving direction. The length of the fluid passage is longer than the axial length of the cylinder.

With the bicycle operating device according to the twenty first aspect, it is possible to more effectively utilize the base member as a region providing a fluid passage and maintain a desired length of the fluid passage.

According to a twenty-second aspect of the invention, the bicycle operating device according to any of the above aspects further comprising an operating member constructed to be disposed between the rest position and the operating position about the pivot axis with respect to the base member Pivot. The piston is constructed to respond to the rest of the operating member The movement of the position toward the operating position is pushed from the starting position to the actuated position to supply hydraulic pressure to the at least one bicycle component.

With the bicycle operating device according to the twenty-second aspect, it is possible to operate the at least one bicycle component by using the operating member and the hydraulic pressure.

According to a twenty-third aspect of the invention, the bicycle operating device includes a hydraulic unit and a base member. The hydraulic unit contains a hydraulic cylinder and a piston. The hydraulic cylinder includes a cylinder bore. The piston is movably provided in the bore of the cylinder. The cylinder bore and the piston define a hydraulic chamber. The base member is constructed to be mounted to the bicycle and includes a fluid passage that is connected to the hydraulic chamber. A fluid passage is provided inside the base member. The fluid passage includes a first portion and a second portion in the fluid passage that is further from the bore of the cylinder than the first portion. The first portion extends to taper toward the second portion. The second portion extends to taper toward the first portion.

With the bicycle operating device according to the twenty-third aspect, it is possible to apply the base member as a region providing a fluid passage. Further, it is possible to easily remove the first core portion and the second core portion configured to form the first portion and the second portion during formation of the base member after the formation of the base member. Therefore, it is possible to easily form a fluid passage and to tighten the bicycle operating device.

According to a twenty-fourth aspect of the invention, the bicycle operating device includes a base member, a hydraulic cylinder, a piston, and a fluid passage. The base member is constructed to be mounted to the bicycle and includes an outer peripheral surface. A hydraulic cylinder is provided on the base member and includes a cylinder bore. The piston is movably provided In the cylinder hole. The cylinder bore and the piston define a hydraulic chamber. The fluid passage is connected to the hydraulic chamber. A fluid passage is provided inside the base member to extend at least partially between the outer peripheral surface and the bore of the cylinder.

With the bicycle operating device according to the twenty-fourth aspect, it is possible to apply the base member as a region providing a fluid passage and to maintain a desired length of the fluid passage. Therefore, it is possible to tighten the bicycle operating device and maintain the desired length of the fluid passage. Furthermore, it is possible to connect the hydraulic hose to the fluid passage at a preferred location of the base member.

10‧‧‧Bicycle operating device

12‧‧‧Base member

12A‧‧‧First end

12B‧‧‧second end

12C‧‧‧ grip part

12D‧‧‧ mounting surface

12E‧‧‧The Saddle Bridge Department

12F‧‧‧ Attachment hole

12G‧‧‧Threaded part

14‧‧‧Installation clip

15‧‧‧ Cover member

16‧‧‧Operating components

18‧‧‧Base section

20‧‧‧Operation Department

22‧‧‧ pivot pin

24‧‧‧Additional pivot pin

26‧‧‧Additional operating components

28‧‧‧First offset component

30‧‧‧Second offset component

32‧‧‧ Third offset component

34‧‧‧Hydraulic unit

36‧‧‧Hydraulic cylinder

38‧‧‧Piston

40‧‧‧Cylinder bore

40A‧‧‧Cylinder center axis

42‧‧‧ hydraulic room

43‧‧‧ Closed components

44‧‧‧ piston rod

46‧‧‧ Guide pin

46A‧‧‧

46B‧‧‧

48‧‧‧Guide members

48A‧‧‧Guide groove

48B‧‧‧Guide groove

50‧‧‧Transmission components

50A‧‧‧First transmission end

50B‧‧‧second transmission end

50C‧‧‧ threaded hole

52‧‧‧Adjustment components

54‧‧‧Adjustment screws

56‧‧‧Adjust the contact part

58‧‧‧Hydraulic storage

59‧‧ ‧ storage room

60‧‧‧reservoir

60A‧‧‧ dent

60B‧‧ hole

62‧‧‧Separator

64‧‧‧ Cover

65‧‧‧fasteners

67‧‧‧Discharge components

68‧‧‧ fluid passage

68A‧‧‧ inner surface

68B‧‧‧Part 1

68B1‧‧‧ first end

68B2‧‧‧First extra end

68C‧‧‧Part II

68C1‧‧‧ second end

68C2‧‧‧Second extra

68D‧‧‧Part III

68D1‧‧ hole

68E‧‧‧Part IV

68F‧‧‧ hole

70‧‧‧Export

72‧‧‧ Receiving components

74‧‧‧Connecting members

74A‧‧‧External threaded part

76‧‧‧First sealing member

78‧‧‧Second sealing member

80‧‧‧

81‧‧‧

82‧‧‧

83‧‧‧Transmission unit

84‧‧‧Control components

86‧‧‧Cable operation structure

210‧‧‧Bicycle operating device

212‧‧‧Base member

213A‧‧‧Base body

213B‧‧‧ tube section

310‧‧‧Bicycle operating device

312‧‧‧Base member

313A‧‧‧Base body

313B‧‧‧ tube part

410‧‧‧Bicycle operating device

412‧‧‧Base member

468‧‧‧ fluid passage

468B‧‧‧Part 1

468C‧‧‧Part II

468D‧‧‧Part III

468E‧‧‧Part IV

A1‧‧‧ pivot axis

A2‧‧‧Additional pivot axis

A61‧‧‧First central axis

A62‧‧‧second central axis

A63‧‧‧ third central axis

A64‧‧‧ fourth central axis

A7‧‧‧ cable control axis

BC1‧‧‧Hydraulic bicycle components

BC2‧‧‧Additional bicycle components; shifting device

C1‧‧‧Hydraulic hose

C2‧‧‧Mechanical control cable

D1‧‧‧First operational direction

D2‧‧‧Second operation direction

D4‧‧‧ moving direction

D5‧‧‧ transverse direction

D61‧‧‧ first direction

D62‧‧‧second direction

D63‧‧‧ third direction

D64‧‧‧ fourth direction

D81‧‧‧ Pull direction

D82‧‧‧ release direction

DM1‧‧‧first inner diameter

DM2‧‧‧second inner diameter

DM3‧‧‧ third inner diameter

DM4‧‧‧fourth inner diameter

H‧‧‧handlebar

H1‧‧‧ curved part

L2‧‧‧Cylinder axial length

L3‧‧‧ room axial length

L5‧‧‧ length

L61‧‧‧First length

L62‧‧‧second length

L63‧‧‧ third length

L64‧‧‧fourth length

P11‧‧‧First rest position

P12‧‧‧First operating position

P21‧‧‧Second rest position

P22‧‧‧second operating position

P31‧‧‧ third resting position

P32‧‧‧ third operating position

P41‧‧‧ starting position

P42‧‧‧Activity position

S1‧‧‧ first side surface

S2‧‧‧ second side surface

ST‧‧‧ Itinerary

VP‧‧‧ virtual plane

IV‧‧‧ line

Line VIII‧‧

X‧‧‧ line

XI‧‧‧ line

Line XIII‧‧

XVI‧‧‧ line

Line XVIII‧‧

XIX‧‧‧ line

A more complete understanding of the present invention, as well as many of its attendant advantages, will become more readily apparent.

Fig. 1 is a right side view of a bicycle operating device according to a first embodiment.

2 is a perspective view of the bicycle operating device illustrated in FIG. 1.

Figure 3 is a front elevational view of the bicycle operating device illustrated in Figure 1.

Figure 4 is a partial cross-sectional view of the bicycle operating device taken along line IV-IV of Figure 3 .

Figure 5 is a rear elevational view of the bicycle operating device illustrated in Figure 1.

Figure 6 is the inside of the bicycle operating device shown in Figure 1 A perspective view of the structure of the part.

Fig. 7 is another perspective view of the internal structure of the bicycle operating device illustrated in Fig. 1.

Figure 8 is a cross-sectional view of the bicycle operating device taken along line VIII-VIII of Figure 4 .

Figure 9 is a perspective view of the bicycle operating device illustrated in Figure 1, with the cover member omitted.

Figure 10 is a cross-sectional view of the bicycle operating device taken along line X-X of Figure 4 .

Figure 11 is a cross-sectional view of the bicycle operating device taken along line XI-XI of Figure 4 .

Figure 12 is a cross-sectional view of the bicycle operating device taken along line XII-XII of Figure 10 .

Figure 13 is a cross-sectional view of the bicycle operating device taken along line XIII-XIII of Figure 11 .

Figure 14 is a partially enlarged cross-sectional view of the bicycle operating device illustrated in Figure 12 .

Figure 15 is a partially enlarged cross-sectional view of the bicycle operating device illustrated in Figure 10.

Figure 16 is a cross-sectional view of the bicycle operating device taken along line XVI-XVI of Figure 10 .

Figure 17 is a partially enlarged cross-sectional view of the bicycle operating device illustrated in Figure 10.

Figure 18 is a view taken along line XVIII-XVIII of Figure 4 A cross-sectional view of the driving operation device.

Figure 19 is a cross-sectional view of the bicycle operating device taken along line XIX-XIX of Figure 10 .

Figure 20 is a partially enlarged cross-sectional view showing a bicycle operating device according to a second embodiment.

Figure 21 is a partially enlarged cross-sectional view showing a bicycle operating device according to a third embodiment.

Figure 22 is a top view of a bicycle operating device according to a fourth embodiment.

Embodiments will now be described with reference to the accompanying drawings, in which like reference

First embodiment

Referring first to Fig. 1, a bicycle operating device 10 according to a first embodiment is constructed to be mounted to a handlebar H of a bicycle. In this embodiment, the bicycle operating device 10 is constructed to be mounted to a downturned handlebar. However, the structure of the bicycle operating device 10 can be applied to other types of handlebars such as a flat handlebar handle, a time trial handlebar, and a horn handlebar. The handlebar H can also be referred to as a downturned handlebar H. Further, the bicycle operating device 10 can be mounted to a component of the bicycle that is different from the handlebar H. Since the structure of bicycles is already known in the bicycle field, they will not be described in detail herein for the sake of brevity.

The bicycle operating device 10 is operatively coupled to a hydraulic bicycle assembly BC1 such as a hydraulic bicycle brake. In this embodiment, the bicycle operating device 10 is operatively coupled to the hydraulic bicycle assembly BC1 via a hydraulic hose C1.

Additionally, bicycle operating device 10 is operatively coupled to additional bicycle assembly BC2. In this embodiment, the bicycle operating device 10 is operatively coupled to the additional bicycle assembly BC2 via a mechanical control cable C2. Examples of additional bicycle components BC2 include a shifting device, an adjustable seatpost assembly, and a bicycle hanger. An example of a mechanical control cable C2 includes a Bowden cable. In this embodiment, the additional bicycle assembly BC2 includes a shifting device to change the gear position of the bicycle. The additional bicycle component BC2 can also be referred to as a shifting device BC2.

In this embodiment, the bicycle operating device 10 is a right hand side control device that is constructed to be operated by the rider's right hand to actuate the hydraulic bicycle assembly BC1 and the additional bicycle assembly BC2. However, the structure of the bicycle operating device 10 can be applied to the left-hand side control device.

In the present application, the following directional terms "front", "back", "forward", "backward", "left", "right", "cross-section", "upward" and "downward", and Any other similar directional term refers to those directions that are determined based on a seat (not shown) that sits on the bicycle and that faces the user of the handlebar H (eg, a knight). Accordingly, the terms used to describe the bicycle operating device 10 should be interpreted relative to the bicycle equipped with the bicycle operating device 10 used in the upright riding position on a horizontal surface.

As seen in Figure 1, the bicycle operating device 10 includes a base Member 12. The base member 12 is constructed to be mounted to the handlebar H of the bicycle. However, the base member 12 can be mounted to a part of the bicycle that is different from the handlebar H. The base member 12 includes a first end 12A, a second end 12B, and a grip portion 12C. The second end portion 12B is opposite to the first end portion 12A and is constructed to be mounted to the handlebar H. The grip portion 12C is provided between the first end portion 12A and the second end portion 12B.

The lower curved handlebar H includes an arcuate portion H1. The second end portion 12B is constructed to be coupled to the curved portion H1 in a mounted state in which the bicycle operating device 10 is mounted to the handlebar H. The bicycle operating device 10 includes a mounting clamp 14 to couple the base member 12 to the handlebar H.

As seen in Fig. 2, the second end portion 12B includes a mounting surface 12D having a curved shape corresponding to the lower curved handlebar H. Specifically, the mounting surface 12D has a curved shape corresponding to the outer peripheral surface of the curved portion H1.

As seen in Figures 1 and 2, the first end portion 12A includes a pommel portion 12E. The saddle bridge portion 12E extends obliquely upward from the grip portion 12C. The saddle bridge portion 12E is provided above the second end portion 12B in the mounted state of the bicycle operating device 10. The saddle bridge portion 12E can also be constructed to be graspable if needed and/or desired.

In this embodiment, the bicycle operating device 10 further includes a cover member 15 that is attached to the base member 12 to at least partially cover the base member 12. The cover member 15 is at least partially made of an elastic material such as rubber.

As seen in Figure 1, the bicycle operating device 10 includes an operation Member 16, the operating member 16 is pivotally coupled to the base member 12 about a pivot axis A1. The operating member 16 extends downward from the base member 12 in the mounted state of the bicycle operating device 10. In this embodiment, the operating member 16 is pivotable relative to the base member 12 about the pivot axis A1 in the first operational direction D1. The operation member 16 is constructed to be pivotable with respect to the base member 12 between the rest position P11 (hereinafter referred to as the first rest position P11) and the operation position P12 (hereinafter referred to as the second rest position P12). . The first operational direction D1 is the circumferential direction defined about the pivot axis A1. In this embodiment, the operating member 16 is provided as a brake lever that is pivotable about a pivot axis A1.

In the present application, the term "resting position" as used herein refers to a position such as a movable member of the operating member 16 that remains stationary in a state where the movable member is not operated by the user. The term "operating position" as used herein refers to a position at which a movable member has been operated by a user to perform an operation of the bicycle assembly.

As seen in Figure 3, the operating member 16 is pivotable relative to the base member 12 about the additional pivot axis A2 in the second operational direction D2. The operating member 16 is pivotable relative to the base member 12 about the additional pivot axis A2 in the second operational direction D2. The operating member 16 is pivotable relative to the base member 12 between the second rest position P21 and the second operating position P22. The second operational direction D2 is the circumferential direction defined about the additional pivot axis A2. In this embodiment, the operating member 16 is provided as a shifting lever that is pivotable about an additional pivot axis A2. However, the function of the shift lever can be omitted from the operating member 16.

As seen in FIGS. 1 and 3, the operating member 16 includes a base portion 18 and an operating portion 20. The base portion 18 is pivotally coupled to the base member 12 about a pivot axis A1. The operating portion 20 is pivotally provided on the base portion 18 about an additional pivot axis A2.

As seen in FIG. 4, the bicycle operating device 10 includes a pivot pin 22 and an additional pivot pin 24. The pivot pin 22 defines a pivot axis A1. The additional pivot pin 24 defines an additional pivot axis A2. The base portion 18 is pivotally coupled to the base member 12 via a pivot pin 22 . The operating portion 20 is pivotally coupled to the base portion 18 via an additional pivot pin 24 .

As seen in Figures 1 and 5, the bicycle operating device 10 further includes an additional operating member 26. The additional operating member 26 is pivotally provided on one of the operating member 16 and the base member 12 about an additional pivot axis A2. In this embodiment, an additional operating member 26 is provided on the operating member 16. Specifically, the additional operating member 26 is pivotable relative to the base member 12 about the additional pivot axis A2 in the second operational direction D2. The additional operating member 26 is pivotable relative to the base member 12 between the third rest position P31 and the third operating position P32. The additional operating member 26 is pivotally coupled to the base portion 18 via an additional pivot pin 24 . The additional operating member 26 is pivotable relative to the base portion 18 about an additional pivot axis A2. In this embodiment, the additional operating member 26 is provided as an additional shifting lever that is pivotable about an additional pivot axis A2. The additional operating member 26 can be omitted from the bicycle operating device 10.

As seen in Figure 4, the bicycle operating device 10 includes a first biasing member 28 to direct the operating member 16 relative to the base member 12. Offset to the first rest position P11 (Fig. 1). The first biasing member 28 is mounted on the pivot pin 22. The base portion 18 is in contact with the base member 12 in a rest state in which the operating member 16 is at the first rest position P11. For example, the first biasing member 28 includes a torsion spring.

The bicycle operating device 10 includes a second biasing member 30 to bias the operating member 16 toward the second rest position P21 (Fig. 3) relative to the base member 12. In this embodiment, the second biasing member 30 offsets the operating portion 20 toward the second rest position P21 (FIG. 3) with respect to the base portion 18. The second biasing member 30 is mounted on the additional pivot pin 24. The operation unit 20 is in contact with the base unit 18 in a state where the operation unit 20 is located at the second rest position. For example, the second biasing member 30 includes a torsion spring.

The bicycle operating device 10 includes a third biasing member 32 to bias the additional operating member 26 toward the third rest position P31 (Fig. 5) relative to the base member 12. In this embodiment, the third biasing member 32 offsets the additional operating member 26 toward the third rest position P31 (FIG. 5) relative to the operating member 16 (base portion 18). The third offset member 32 is mounted on the additional pivot pin 24. As seen in FIG. 5, the additional operating member 26 is in contact with the operating member 16 (operating portion 20) in a state where the operating member 16 and the additional operating member 26 are located at the second rest position P21 and the third rest position P31. For example, the third offset member 32 includes a torsion spring.

As seen in FIG. 4, bicycle operating device 10 includes a hydraulic unit 34 that is provided on base member 12. The hydraulic unit 34 includes a hydraulic cylinder 36 and a piston 38. That is, the bicycle operating device 10 includes a base member 12, a hydraulic cylinder 36, and a piston 38. Hydraulic cylinder 36 is raised It is supplied to the base member 12 and includes a cylinder bore 40. A piston 38 is movably provided in the cylinder bore 40. Cylinder bore 40 and piston 38 define a hydraulic chamber 42. In this embodiment, the hydraulic unit 34 includes a closing member 43 that is attached to the cylinder barrel 36 to close one end of the cylinder bore 40. The cylinder bore 40, the piston 38 and the closing member 43 define a hydraulic chamber 42.

The piston 38 is movable relative to the cylinder barrel 36 in the moving direction D4 in response to the movement of the operating member 16 in the first operating direction D1. Specifically, the piston 38 is movable relative to the cylinder barrel 36 between the starting position P41 and the actuating position P42. The starting position P41 corresponds to the first rest position P11 of the operating member 16 (FIG. 1). The actuation position P42 corresponds to the first operational position P12 of the operating member 16 (Fig. 2). Specifically, the piston 38 is located at the starting position P41 in the rest state of the operating member 16 at the first rest position P11 (Fig. 1). The piston 38 is located at the actuated position P42 in the operational state of the operating member 16 at the first operational position P12 (Fig. 1). The piston 38 is constructed to be urged from the starting position P41 to the actuating position P42 in response to movement of the operating member 16 from the first rest position P11 toward the operating position P12 to supply hydraulic pressure to the at least one bicycle assembly BC1.

As seen in Figure 4, the piston 38 is movable relative to the cylinder barrel 36 by a stroke ST defined from a starting position P41 to an actuating position P42. The stroke ST of the piston 38 is defined in the moving direction D4. The hydraulic chamber 42 has a variety of different internal volume, and the internal volume can vary in response to the movement of the piston 38. In this embodiment, the stroke ST of the piston 38 is as described later. It can be adjusted between the maximum stroke and the minimum stroke. In such an embodiment, the stroke ST of the piston 38 can be defined as the minimum stroke.

As seen in FIGS. 4, 6, and 7, the bicycle operating device 10 includes a piston rod 44, a guide pin 46, a guide member 48, and a transmission member 50. Piston rod 44 is operatively coupled to piston 38. Guide pin 46 is attached to piston rod 44. The guiding member 48 is made of a metric material such as titanium alloy, stainless steel, and aluminum alloy. The guiding member 48 is removably attached to the base member 12. The guide member 48 includes a pair of guide grooves 48A and 48B. Both ends 46A and 46B of the guide pin 46 are movably provided in the guide grooves 48A and 48B. The first biasing member 28 biases the guide pin 46. The piston 38, the piston rod 44, the guide pin 46, and the guide member 48 can be removed from the base member 12 as a unit. The transfer member 50 is pivotable relative to the base member 12 about a pivot axis A1 to transmit movement of the operating member 16 to the guide pin 46.

As seen in FIG. 4, the transmission member 50 includes a first transmission end 50A and a second transmission end 50B. The first transmission end 50A is in contact with the guide pin 46. The second transmission end 50B is disposed opposite to the first transmission end 50A with respect to the pivot axis A1.

As seen in FIG. 4, the bicycle operating device 10 includes an adjustment member 52. The adjustment member 52 is rotatably attached to the second transmission end 50B. The adjustment member 52 includes an adjustment screw 54 and an adjustment contact portion 56. The transmission member 50 includes a threaded hole 50C that is disposed at the second transmission end 50B. The adjustment screw 54 is screwed into engagement with the threaded hole 50C. The adjustment contact portion 56 is rotatably coupled to one of the adjustment screws 54 end. The adjustment contact portion 56 is coupled to the base portion 18 to be constrained from being rotatable relative to the base portion 18. An adjustment biasing element (not shown) is provided between the transfer member 50 and the base portion 18 to bias the transfer member 50 and the base portion 18 to urge the base portion 18 against the top adjustment contact portion 56. The rotation of the adjustment screw 54 relative to the transfer member 50 changes the distance between the second transfer end 50B and the base portion 18, which changes the first rest position P11 of the operating member 16 relative to the base member 12.

As seen in FIG. 8, hydraulic unit 34 includes a hydraulic reservoir 58. The hydraulic reservoir 58 includes a reservoir 59 that is coupled to the hydraulic chamber 42. As seen in Figure 4, a hydraulic reservoir 58 is provided at the first end 12A. In this embodiment, as seen in Figures 8 and 9, a hydraulic reservoir 58 is provided at the saddle bridge portion 12E.

As seen in FIG. 8, hydraulic reservoir 58 includes a reservoir 60, a diaphragm 62, and a lid 64. The reservoir slot 60 includes a recess 60A. In this embodiment, the reservoir tank 60 is integrally provided as a one-piece member with the cylinder barrel 36. However, the reservoir slot 60 can be a separate component from the hydraulic cylinder 36. The diaphragm 62 is at least partially disposed in the recess 60A. The reservoir slot 60 and diaphragm 62 define a reservoir chamber 59 in the recess 60A. In this embodiment, the hydraulic reservoir 58 includes a bleed member 67. The discharge member 67 is removably attached to the reservoir slot 60 to close the aperture 60B of the reservoir slot 60. The reservoir slot 60, the diaphragm 62, and the discharge member 67 define a reservoir chamber 59 in the recess 60A. The reservoir chamber 59 is connected to the hydraulic chamber 42 via at least one connection hole (not shown). As seen in Figures 8 and 9, the cover 64 is removably attached to the bottom with fasteners 65. The seat member 12 is recessed 60A with a cover. The hydraulic reservoir 58 can be omitted from the bicycle operating device 10.

As seen in Figures 4 and 8, the cylinder bore 40 is at least partially provided above the pivot axis A1 in the mounted state in which the bicycle operating device 10 is mounted to the handlebar H (Figure 1). The reservoir chamber 59 is provided above the cylinder bore 40 in the cross-sectional direction D5 parallel to the pivot axis A1 in the mounted state without overlapping the cylinder bore 40.

As seen in FIG. 10, the base member 12 includes a fluid passage 68. Fluid passage 68 is connected to hydraulic chamber 42. A fluid passage 68 is provided inside the base member 12. As seen in Figure 11, the base member 12 includes an exit weir 70. The outlet port 70 is connected to the fluid passage 68 and is provided at the second end 12B. Fluid passage 68 is defined from hydraulic chamber 42 to outlet bore 70. The hydraulic hose C1 is connected to the hydraulic chamber 42 via the outlet port 70. One end of the hydraulic hose C1 is connected to the outlet port 70. As seen in FIG. 8, the base member 12 includes an inner peripheral surface 68A that is provided in the base member 12 and defines a fluid passage 68.

As seen in FIG. 11, the outlet port 70 includes a receiving member 72, a connecting member 74, a first sealing member 76, and a second sealing member 78. The receiving member 72 and the first sealing member 76 are provided in the attachment hole 12F of the base member 12. The first sealing member 76 is disposed between the receiving member 72 and the connecting member 74. The second sealing member 78 is disposed between the base member 12 and the connecting member 74. The connecting member 74 includes an externally threaded portion 74A. The attachment hole 12F includes an internally threaded portion 12G that is screwed into engagement with the externally threaded portion 74A. First sealing member 76 and The second sealing member 78 is made of an elastic member such as rubber. When the connecting member 74 is locked, the first sealing member 76 comes into contact with the outer peripheral surface of the hydraulic hose C1.

As seen in FIG. 10, the fluid passage 68 has a length that is longer than the stroke ST of the piston 38. The cylinder bore 40 has a cylinder axial length L2 defined in the direction of movement D4. The length of the fluid passage 68 is longer than the axial length L2 of the cylinder. The hydraulic chamber 42 has a chamber axial length L3 defined in the direction of movement D4. The length of the fluid passage 68 is longer than the axial length L3 of the chamber. In this embodiment, the cylinder chamber 42 has a variable axial length in response to movement of the piston 38 for operation and adjustment. The chamber axial length L3 of the hydraulic chamber 42 is defined in a resting state in which the operating member 16 is at the first rest position P11 and the piston 38 is at the starting position P41 (Fig. 10). As seen in Figure 4, the reservoir chamber 59 has a length L5 defined in the direction of movement D4. The length L5 of the reservoir chamber 59 is longer than the stroke ST of the piston 38. The length of the fluid passage 68 is longer than the length L5 of the reservoir chamber 59.

As seen in Figures 10-13, the fluid passage 68 includes a first portion 68B and a second portion 68C. The second portion 68C is further from the cylinder bore 40 in the fluid passage 68 than the first portion 68B. The first portion 68B extends in the first direction D61. The second portion 68C extends in a second direction D62 that is different from the first direction D61. At least one of the first portion 68B and the second portion 68C extends linearly. In this embodiment, each of the first portion 68B and the second portion 68C extends linearly. However, at least one of the first portion 68B and the second portion 68C can have other shapes such as a curved shape.

As seen in Figures 10 and 12, the first portion 68B has a first central axis A61 that extends in a first direction D61. The first portion 68B has a first length L61 defined along the first central axis A61. One end of the first portion 68B is closed with a plug 80. Plug 80 defines a first length L61. For example, the plugs 80 are made of a resin material and are non-removably bonded to the base member 12 by melting their edges and pressing them together when they are hot. Therefore, the plug 80 cannot be separated from the base member 12 in the use state of the bicycle operating device 10 without being damaged.

As seen in Figures 11 and 13, the second portion 68C has a second central axis A62 that extends in the second direction D62. The second portion 68C has a second length L62 defined along the second central axis A62. The second portion 68C is connected to the outlet port 70.

As seen in Figures 14 and 15, fluid passage 68 further includes a third portion 68D that connects first portion 68B to second portion 68C. The third portion 68D is provided between the first portion 68B and the second portion 68C. The third portion 68D is provided in the grip portion 12C of the base member 12. As seen in FIG. 15, the third portion 68D extends in a third direction D63 that is different from each of the first direction D61 and the second direction D62. The third portion 68D has a third central axis A63 that extends in the third direction D63. As seen in Fig. 15, one end of the hole 68D1 is closed by the plug 81. For example, the plugs 81 are made of a resin material and are non-removably bonded to the base member 12 by melting their edges and pressing them together when they are hot. Therefore, the plug 81 is made in the bicycle operating device 10 It is not separable from the base member 12 in the undamaged state.

As seen in Figure 12, the first portion 68B includes a first end 68B1 and a first additional end 68B2 opposite the first end 68B1 along the first central axis A61. The first end 68B1 is closed with a plug 80. The first extra end 68B2 is connected to the third portion 68D.

As seen in Figure 13, the second portion 68C includes a second end 68C1 and a second additional end 68C2 that is opposite the second end 68C1 along the second central axis A62. The second end 68C1 is connected to the outlet port 70. The second extra end 68C2 is connected to the third portion 68D. As seen in Figure 14, the third portion 68D has a third length L63 that is defined from the first extra end 68B2 to the second extra end 68C2.

As seen in Figures 10 and 16, fluid passage 68 further includes a fourth portion 68E that connects cylinder bore 40 to first portion 68B. The fourth portion 68E extends perpendicularly from the cylinder bore 40. The first portion 68B extends perpendicularly from the fourth portion 68E. In this embodiment, the fourth portion 68E extends in a fourth direction D64 that is different from each of the first direction D61, the second direction D62, and the third direction D63. The fourth portion 68E has a fourth central axis A64 that extends in the fourth direction D64. The cylinder bore 40 has a cylinder central axis 40A that extends in the direction of movement D4. The fourth portion 68E extends from the cylinder bore 40 in a fourth direction D64 that is defined perpendicular to the cylinder center axis 40A. The fourth portion 68E has a fourth length L64 defined along a fourth central axis A64. Aperture 68F is provided on the opposite side of fourth portion 68E relative to first portion 68B. Hole 68F is closed with plug 82. For example, the plug 82 is made of a resin material and Their edges are melted and are non-removably bonded to the base member 12 as they are pressed together. Therefore, the plug 82 cannot be separated from the base member 12 in the use state of the bicycle operating device 10 without being damaged.

As seen in Figures 10-16, the fluid passage 68 includes a fourth portion 68E, a first portion 68B, a third portion 68D, and a second portion 68C that are configured from the cylinder bore 40 in this order. The length of the fluid passage 68 is the sum of the first length L61, the second length L62, the third length L63, and the fourth length L64.

As seen in Figures 10 and 12, the first portion 68B extends to taper toward the second portion 68C. The first portion 68B has a shape that tapers from the first end 68B1 to the first additional end 68B2. The inner diameter of the first portion 68B gradually decreases from the first end 68B1 to the first additional end 68B2. The cross-sectional area of the first portion 68B taken along the first central axis A61 gradually decreases from the first end 68B1 to the first additional end 68B2. The first portion 68B has a first cross-sectional area taken along the first central axis A61.

In this embodiment, as seen in Figure 14, the first portion 68B has a first inner diameter DM1 defined at the first additional end 68B2. In the case where the first portion 68B has a tapered shape, the first inner diameter DM1 is defined as the smallest inner diameter of the first portion 68B. In the case where the first portion 68B has a tapered shape, the first cross-sectional area is defined as the smallest cross-sectional area of the first portion 68B.

As seen in Figures 11 and 13, the second portion 68C is extended Extending so as to taper toward the first portion 68B. The second portion 68C has a shape that tapers from the second end 68C1 to the second additional end 68C2. The inner diameter of the second portion 68C gradually decreases from the second end 68C1 to the second additional end 68C2. The cross-sectional area of the second portion 68C along the second central axis A62 gradually decreases from the second end 68C1 to the second additional end 68C2. The second portion 68C has a second cross-sectional area taken along the second central axis A62.

In this embodiment, as seen in Figure 14, the second portion 68C has a second inner diameter DM2 defined at the second additional end 68C2. In the case where the second portion 68C has a tapered shape, the second inner diameter DM2 is defined as the smallest inner diameter of the second portion 68C. In the case where the second portion 68C has a tapered shape, the second cross-sectional area is defined as the smallest cross-sectional area of the second portion 68C. In this embodiment, the first inner diameter DM1 is equal to the second inner diameter DM2, and the first cross-sectional area is equal to the second cross-sectional area. However, the first inner diameter DM1 can be different from the second inner diameter DM2. The first cross-sectional area can be different from the second cross-sectional area.

As seen in FIG. 14, the third portion 68D has a third inner diameter DM3 that is different from each of the first inner diameter DM1 and the second inner diameter DM2. The third inner diameter DM3 is larger than each of the first inner diameter DM1 and the second inner diameter DM2. The third portion 68D has a third cross-sectional area taken along the third central axis A63. The third cross-sectional area is greater than each of the first cross-sectional area and the second cross-sectional area. However, the third inner diameter DM3 can be equal to or smaller than at least one of the first inner diameter DM1 and the second inner diameter DM2. The third cross-sectional area can be equal to or smaller than the first cross-sectional area and the second cross-sectional area At least one of them.

As seen in Figure 17, the fourth portion 68E has a fourth different from each of the first inner diameter DM1 (Fig. 14), the second inner diameter DM2 (Fig. 14), and the third inner diameter DM3 (Fig. 14). Inner diameter DM4. The fourth inner diameter DM4 is smaller than each of the first inner diameter DM1, the second inner diameter DM2, and the third inner diameter DM3. The fourth portion 68E has a fourth cross-sectional area taken along the fourth central axis A64. The fourth cross-sectional area is greater than each of the first cross-sectional area, the second cross-sectional area, and the third cross-sectional area. However, the fourth inner diameter DM4 can be equal to or smaller than at least one of the first inner diameter DM1, the second inner diameter DM2, and the third inner diameter DM3. The fourth cross-sectional area can be equal to or smaller than at least one of the first cross-sectional area, the second cross-sectional area, and the third cross-sectional area.

As seen in Figure 8, the base member 12 includes a peripheral surface. The outer peripheral surface of the base member 12 includes a first side surface S1 and a second side surface S2. The second side surface S2 is laterally opposite to the first side surface S1 in a state where the bicycle operating device 10 is mounted to the handlebar H. A cylinder bore 40 is provided between the first side surface S1 and the second side surface S2. The first portion 68B is provided between the first side surface S1 and the cylinder bore 40.

As seen in Figures 10 and 16, a fluid passage 68 is provided within the interior of the base member 12 to extend at least partially between the outer peripheral surface and the bore 40 of the cylinder. Specifically, the first portion 68B extends between the first side surface S1 and the cylinder bore 40. As seen in Fig. 18, the second portion 68C is provided between the first side surface S1 and the second side surface S2. As seen in Figure 19, a third portion 68D is provided on the first side surface S1 Between the second side surface S2 and the second side surface S2. As seen in FIGS. 18 and 19, the second portion 68C and the third portion 68D are closer to the first side surface S1 than the second side surface S2.

The base member 12 is made of a non-metallic material such as a resin material. In this embodiment, the base member 12 is made of a resin material. For example, the base member 12 is made of synthetic resin. The base member 12 is integrally formed by using integral molding. However, the base member 12 can be made of other materials such as a metallic material. For example, the base member 12 can be made of aluminum by molding.

As seen in Figures 6 and 7, the bicycle operating device 10 further includes a shifting unit 83 to operate the shifting device BC2. The shifting unit 83 includes a cable control member 84 that is pivotally provided on the base member 12 about a cable control axis A7. The inner wire of the mechanical control cable C2 is coupled to the cable control member 84. The cable control member 84 pivots relative to the base member 12 about the cable control axis A7 in response to movement of the operating member 16 and the additional operating member 26.

The shifting unit 83 includes a cable operating structure 86 that operatively couples the operating member 16 and the additional operating member 26 to the cable control member 84. Specifically, the cable operating structure 86 pivots the cable control member 84 relative to the base member 12 in one of the pull direction D81 and the release direction D82 in response to movement of the operating member 16 (FIG. 3). In addition, the cable handling structure 86 pivots the cable control member 84 relative to the base member 12 in the other of the pull direction D81 and the release direction D82 in response to movement of the additional operating member 26 (FIG. 5). In this In the embodiment, the cable handling structure 86 pivots the cable control member 84 relative to the base member 12 in the release direction D82 in response to movement of the operating member 16 (Fig. 3). In addition, the cable operating structure 86 pivots the cable control member 84 relative to the base member 12 in the pull direction D81 in response to movement of the additional operating member 26 (FIG. 5).

As seen in Figures 4 and 10, the cable control axis A7 and the cylinder center axis 40A are together configured to define a virtual plane. The cable control axis A7, the cylinder center axis 40A, and the additional pivot axis A2 are configured together to define a virtual plane VP (Fig. 10). The structure of the shifting unit 83 is already known in the bicycle field and will not be described in detail herein for the sake of brevity. The shifting unit 83 can be omitted from the bicycle operating device 10.

The bicycle operating device 10 has the following features.

(1) The base member 12 includes a fluid passage 68 that is connected to the hydraulic chamber 42. A fluid passage 68 is provided inside the base member 12. The fluid passage 68 has a length that is longer than the stroke ST of the piston 38. Thus, it is possible to utilize the base member 12 as a region that provides the fluid passage 68 and maintain the desired length of the fluid passage 68. Therefore, it is possible to make the bicycle operating device 10 compact and maintain the desired length of the fluid passage 68. Again, it is possible to connect the hydraulic hose C1 to the fluid passage 68 at a preferred location of the base member 12.

(2) The base member 12 includes an inner peripheral surface 68A that is provided in the base member 12 and defines a fluid passage 68. Therefore, it is possible to effectively use the base member 12 as a region of the fluid passage 68. area.

(3) The fluid passage 68 includes a first portion 68B and a second portion 68C that are further away from the cylinder bore 40 in the fluid passage 68 than the first portion 68B. Therefore, it is possible to effectively utilize a portion of the base member 12 that is further away from the cylinder bore 40 as a region that provides the fluid passage 68.

(4) The first portion 68B extends to taper toward the second portion 68C. The second portion 68C extends to taper toward the first portion 68B. Therefore, it is possible to easily remove the first core and the second core portion that are configured to form the first portion 68B and the second portion 68C during formation of the base member 12 after the formation of the base member 12.

(5) The first portion 68B extends in the first direction D61. The second portion 68C extends in a second direction D62 that is different from the first direction D61. Therefore, it is possible to configure the fluid passage 68 along the shape of the base member 12, which improves the design freedom of the fluid passage 68.

(6) At least one of the first portion 68B and the second portion 68C extends linearly. Therefore, it is possible to easily form at least one of the first portion 68B and the second portion 68C.

(7) The fluid passage 68 further includes a third portion 68D that connects the first portion 68B to the second portion 68C. Thus, even if the first portion 68B is spaced from the second portion 68C, it is possible to connect the first portion 68B to the second portion 68C to cause the first portion 68B to communicate with the second portion 68C.

(8) The first portion 68B has a first inner diameter DM1. First The two portions 68C have a second inner diameter DM2. The third portion 68D has a third inner diameter DM3 that is different from each of the first inner diameter DM1 and the second inner diameter DM2. Therefore, it is possible to easily form the connecting portion that connects the first portion 68B to the second portion 68C by using the third portion 68D.

(9) The third inner diameter DM3 is larger than each of the first inner diameter DM1 and the second inner diameter DM2. Therefore, it is possible to more easily form the connecting portion that connects the first portion 68B to the second portion 68C by using the third portion 68D.

(10) A cylinder bore 40 is provided between the first side surface S1 and the second side surface S2. The first portion 68B is provided between the first side surface S1 and the cylinder bore 40. The second portion 68C and the third portion 68D are closer to the first side surface S1 than the second side surface S2. Therefore, it is possible to effectively use the base member 12 as a region providing the first portion 68B to the third portion 68D.

(11) Since the fluid passage 68 further includes a fourth portion 68E that connects the cylinder bore 40 to the first portion 68B, it is possible to connect the cylinder bore 40 to the first portion 68B via the fourth portion 68E.

(12) Since the fourth portion 68E extends perpendicularly from the cylinder bore 40, it is possible to effectively utilize the radially outer region of the cylinder bore 40 in the base member 12.

(13) Since the first portion 68B extends vertically from the fourth portion 68E, it is possible to improve the design freedom of the configuration of the fluid passage 68.

(14) The base member 12 includes a first end 12A, a second The end portion 12B, the grip portion 12C, and the outlet port 70. The outlet port 70 is connected to the fluid passage 68 and is provided at the second end 12B. Therefore, it is possible to introduce hydraulic pressure to the hydraulic bicycle assembly BC1 via the outlet port 70 of the base member 12.

(15) Since the base member 12 is made of a resin material, it is possible to easily form the base member 12 and to save the weight of the base member 12.

(16) The cover member 15 is attached to the base member 12 to at least partially cover the base member 12. The cover member 15 is at least partially made of an elastic material. Therefore, it is possible to improve the comfort of the knight operating the bicycle operating device 10 and/or the knight to easily grasp the bicycle operating device 10.

(17) The bicycle operating device 10 further includes a shifting unit 83 to operate the shifting device BC2. Therefore, it is possible to operate the shifting device BC2 in addition to the hydraulic bicycle assembly BC1.

(18) The piston 38 is movable in the moving direction D4 with respect to the cylinder bore 36. The hydraulic chamber 42 has a chamber axial length L3 defined in the direction of movement D4. The length of the fluid passage 68 is longer than the axial length L3 of the chamber. Accordingly, it is possible to effectively utilize the base member 12 as a region that provides the fluid passage 68 and maintain the desired length of the fluid passage 68.

(19) The cylinder bore 40 has an axial length L2 of the cylinder defined in the moving direction D4. The length of the fluid passage 68 is longer than the axial length L2 of the cylinder. Thus, it is possible to more effectively utilize the base member 12 to provide a region of the fluid passage 68 and maintain the desired length of the fluid passage 68.

(20) The bicycle operating device 10 further includes an operating member 16 that is configured to be pivotable relative to the base member 12 about the pivot axis A1 between the rest position P11 and the operating position P12. The piston 38 is constructed to be urged from the starting position P41 to the actuating position P42 in response to movement of the operating member 16 from the rest position P11 toward the operating position P12 to supply hydraulic pressure to the at least one bicycle assembly BC1. Therefore, it is possible to operate at least one bicycle component BC1 by using the operating member 16 and hydraulic pressure.

Second embodiment

Referring to Fig. 20, a bicycle operating device 210 according to a second embodiment will be described below. The bicycle operating device 210 has the same structure and/or configuration as the structure and/or configuration in the bicycle operating device 10 except for the base member 12. Therefore, elements having substantially the same functions as those in the first embodiment will be numbered the same herein, and will not be described and/or illustrated again in detail for the sake of brevity.

As seen in FIG. 20, the bicycle operating device 10 includes a base member 212. The base member 212 has substantially the same structure as that of the base member 12 of the first embodiment. Unlike the base member 12 of the first embodiment, the base member 212 includes a base body 213A and a tube portion 213B. The tube portion 213B is at least partially disposed in the base body 213A and is integrally provided with the base body 213A. The tube portion 213B includes an inner peripheral surface 68A. Tube portion 213B at least partially defines fluid passage 68.

The base body 213A is made of a material such as a resin material. to make. The tube portion 213B is a member separate from the base body 213A. The tube portion 213B is made of a material different from that of the base body 213A. The tube portion 213B is made of a metal material such as aluminum. The tube portion 213B is provided in the base body 213A by integral molding such as insert molding.

With the bicycle operating device 210, it is possible to obtain the same effects as those of the bicycle operating device 10 of the first embodiment.

Further, the base member 212 includes a base body 213A and a tube portion 213B that is at least partially disposed in the base body 213A and is integrally provided with the base body 213A. The tube portion 213B includes an inner peripheral surface 68A. Therefore, it is possible to easily form the fluid passage 68.

Third embodiment

Referring to Fig. 21, a bicycle operating device 310 according to a third embodiment will be described below. The bicycle operating device 310 has the same structure and/or configuration as the structure and/or configuration in the bicycle operating device 10 except for the base member 12. Therefore, elements having substantially the same functions as those in the first embodiment will be numbered the same herein, and will not be described and/or illustrated again in detail for the sake of brevity.

As seen in Figure 21, the bicycle operating device 10 includes a base member 312. The base member 312 has substantially the same structure as that of the base member 12 of the first embodiment. Unlike the base member 12 of the first embodiment, the base member 312 includes a base body 313A and a tube portion 313B. tube The portion 313B is at least partially disposed in the base body 313A and is integrally provided with the base body 313A. The tube portion 313B includes an inner peripheral surface 68A. Tube portion 313B at least partially defines fluid passage 68.

The base body 313A is made of a material such as a resin material. The tube portion 313B is integrally provided as a one-piece member with the base body 313A. The tube portion 313B is made of the same material as that of the base body 313A. The tube portion 313B is made of a non-metal material such as a resin material.

The tube portion 313B is provided in the base body 313A by integral molding such as insert molding. In the case where the tube portion 313B and the base body 313A are made of a resin material, since the tube portion 313B is at least partially combined with the base body 313A, the tube portion 313B is substantially integrally provided with one piece of the unitary member. However, the tube portion 313B can be made of a resin material different from the resin material of the base body 313A.

With the bicycle operating device 310, it is possible to obtain the same effects as those of the bicycle operating device 10 of the first embodiment.

Further, the base member 312 includes a base body 313A and a tube portion 313B that is at least partially disposed in the base body 313A and is integrally provided with the base body 313A. The tube portion 313B includes an inner peripheral surface 68A. Therefore, it is possible to easily form the fluid passage 68.

Fourth embodiment

Referring to Fig. 22, a bicycle operating device 410 according to a fourth embodiment will be described below. The bicycle operating device 410 has the same structure and/or configuration as the structure and/or configuration in the bicycle operating device 10 except for some components. Thus, elements having substantially the same functions as those in the above embodiments will be numbered the same, and will not be described and/or illustrated in detail for the sake of brevity.

As seen in FIG. 22, bicycle operating device 410 includes a base member 412. The base member 412 has substantially the same structure as that of the base member 12 of the first embodiment. Unlike the base member 12 of the first embodiment, the base member 412 includes a fluid passage 468 that is coupled to the hydraulic chamber 42. A fluid passage 468 is provided inside the base member 412. Fluid passage 468 has a length that is longer than stroke ST of piston 38

Fluid channel 468 includes a first portion 468B, a second portion 468C, a third portion 468D, and a fourth portion 468E. The first portion 468B to the fourth portion 468E have substantially the same structure as that of the first portion 68B to the fourth portion 68E.

The base member 412 includes a first side surface S1 and a second side surface S2. The first portion 468B is provided between the second side surface S2 and the cylinder bore 40. The third portion 468D is closer to the second side surface S2 than the first side surface S1. The second portion 468C extends from the third portion 468D toward the first side surface S1.

With the bicycle operating device 410, it is possible to obtain the same effects as those of the bicycle operating device 10 of the first embodiment.

In addition, the first portion 468B is provided on the second side surface Between S2 and the cylinder bore 40. The third portion 468D is closer to the second side surface S2 than the first side surface S1. The second portion 468C extends from the third portion 468D toward the first side surface S1. Therefore, it is possible to effectively use the base member 412 as a region providing the first portion 468B to the third portion 468D.

It will be apparent to those skilled in the bicycle art that the above-described embodiments can be combined at least partially with one another.

The term "comprise" and its derivatives are used herein to mean an open term that defines the appearance of the features, elements, components, groups, integers, and/or steps, but does not exclude other features that are not stated, The appearance of components, components, groups, entities, and/or steps. This concept is also applied to words having similar meanings, such as the terms "having", "including" and their derivatives.

The terms "member", "section", "part", "part", "element", "body" and "structure" are used in the singular and can be used in the singular or plural.

The ordinal terms such as "first" and "second" as used in the present application are merely distinguishing terms, but do not have any other meaning such as a specific order. Moreover, for example, the term "first element" does not itself imply the presence of "second element", and the term "second element" does not itself imply the presence of "first element."

The term "a pair" as used herein, in addition to encompassing configurations in which the pair of elements have the same shape or configuration, can also encompass configurations in which the elements have different shapes or configurations from one another.

Finally, the terms "substantially", "about" and "approximately" as used herein mean the reasonable amount of variation of the modified term so that the end result does not change significantly.

Obviously, many modifications and variations of the present invention are possible in light of the above teachings. Therefore, it is to be understood that the invention may be practiced otherwise than as specifically described herein within the scope of the appended claims.

10‧‧‧Bicycle operating device

12‧‧‧Base member

12A‧‧‧First end

12B‧‧‧second end

12C‧‧‧ grip part

15‧‧‧ Cover member

16‧‧‧Operating components

18‧‧‧Base section

20‧‧‧Operation Department

40‧‧‧Cylinder bore

43‧‧‧ Closed components

58‧‧‧Hydraulic storage

68B‧‧‧Part 1

68B2‧‧‧First extra end

68C‧‧‧Part II

68C1‧‧‧ second end

68C2‧‧‧Second extra

68D‧‧‧Part III

70‧‧‧Export

72‧‧‧ Receiving components

74‧‧‧Connecting members

76‧‧‧First sealing member

78‧‧‧Second sealing member

A1‧‧‧ pivot axis

A61‧‧‧First central axis

A62‧‧‧second central axis

C1‧‧‧Hydraulic hose

D61‧‧‧ first direction

D62‧‧‧second direction

L62‧‧‧second length

Claims (24)

A bicycle operating device comprising: a base member constructed to be mounted to a bicycle; a hydraulic cylinder provided on the base member and including a cylinder bore; a piston movably provided in the cylinder In the hole, the cylinder bore and the piston define a hydraulic chamber; and a fluid passage connected to the hydraulic chamber, the fluid passage being provided inside the base member, the fluid passage having a length longer than a stroke of the piston. The bicycle operating device of claim 1, wherein the base member includes an inner peripheral surface that is provided in the base member and defines the fluid passage. The bicycle operating device according to claim 2, wherein the base member comprises a base body, and a tube portion that is at least partially disposed in the base body and is integrally provided with the base body, and the tube The portion includes the inner peripheral surface. The bicycle operating device according to claim 1, wherein the fluid passage comprises The first portion, and the second portion, are further from the cylinder bore in the fluid passage than the first portion. The bicycle operating device of claim 4, wherein the first portion extends to taper toward the second portion, and the second portion extends to taper toward the first portion. The bicycle operating device of claim 4, wherein the first portion extends in a first direction and the second portion extends in a second direction that is different from the first direction. The bicycle operating device of claim 4, wherein at least one of the first portion and the second portion extends linearly. The bicycle operating device of claim 4, wherein the fluid passage further comprises a third portion connecting the first portion to the second portion. The bicycle operating device of claim 8, wherein the first portion has a first inner diameter, the second portion has a second inner diameter, and the third portion has the first inner diameter and the second Each of the inner diameters has a different third inner diameter. The bicycle operating device of claim 9, wherein the third inner diameter is greater than each of the first inner diameter and the second inner diameter. The bicycle operating device according to claim 8, wherein the base member includes a first side surface, and is laterally opposite to the first side surface in a mounted state in which the bicycle operating device is mounted to the bicycle a second side surface, the cylinder bore is provided between the first side surface and the second side surface, the first portion is provided between the first side surface and the cylinder bore, and the second portion And the third portion is closer to the first side surface than the second side surface. The bicycle operating device according to claim 8, wherein the base member includes a first side surface, and is laterally opposite to the first side surface in a mounted state in which the bicycle operating device is mounted to the bicycle a second side surface, the cylinder bore is provided between the first side surface and the second side surface, the first portion being provided between the second side surface and the cylinder bore The third portion is closer to the second side surface than the first side surface, and the second portion extends from the third portion toward the first side surface. The bicycle operating device of claim 1, wherein the fluid passage further comprises connecting the bore of the cylinder to a fourth portion of the first portion. A bicycle operating device according to claim 13 wherein the fourth portion extends perpendicularly from the bore of the cylinder. The bicycle operating device of claim 14, wherein the first portion extends perpendicularly from the fourth portion. The bicycle operating device of claim 1, wherein the base member includes a first end, a second end opposite the first end and configured to be mounted to a handlebar of the bicycle. A grip portion is provided between the first end and the second end, and an outlet port that is coupled to the fluid passage and is provided at the second end. The bicycle operating device according to claim 1, wherein The base member is made of a resin material. The bicycle operating device of claim 1, further comprising: a cover member attached to the base member to at least partially cover the base member, the cover member being at least partially comprised of an elastic material Made. The bicycle operating device according to claim 1, further comprising: a shifting unit to operate the shifting device. The bicycle operating device according to claim 1, wherein the piston is movable in a moving direction with respect to the hydraulic cylinder, the hydraulic chamber having a chamber axial length defined in the moving direction, and the fluid This length of the passage is longer than the axial length of the chamber. A bicycle operating device according to claim 20, wherein the cylinder bore has an axial length of the cylinder defined in the direction of movement, and the length of the fluid passage is longer than the axial length of the cylinder. The bicycle operating device according to claim 1, further comprising: an operating member configured to be pivotable relative to the base member about a pivot axis between a rest position and an operating position, wherein The piston is configured to be pushed from the starting position to the actuating position in response to movement of the operating member from the rest position toward the operating position to fluid The pressure is supplied to at least one bicycle component. A bicycle operating device comprising: a base member constructed to be mounted to a bicycle; a hydraulic cylinder provided on the base member and including a cylinder bore; a piston movably provided in the cylinder In the hole, the cylinder bore and the piston define a hydraulic chamber; and a fluid passage connected to the hydraulic chamber, the fluid passage being provided inside the base member, the fluid passage including a first portion, and the fluid passage The second portion is further away from the second portion of the cylinder bore than the first portion, the first portion extending to taper toward the second portion, the second portion extending to taper toward the first portion. A bicycle operating device comprising: a base member constructed to be mounted to a bicycle and including an outer peripheral surface; a hydraulic cylinder provided on the base member and including a cylinder bore; a piston movably provided In the cylinder bore, the cylinder bore and the piston define a hydraulic chamber; and a fluid passage connected to the hydraulic chamber, the fluid passage being provided inside the base member to extend at least partially over the periphery Between the surface and the bore of the cylinder.