TW202308891A - Hydraulic operating device for human-powered vehicle - Google Patents

Abstract

A hydraulic operating device is provided for a human-powered vehicle. The hydraulic operating device includes a base, an operating member, a piston, a piston rod, a first link and a second link. The operating member is pivotally coupled to the base to move the piston via the piston rod, the first link and the second link. The first link is pivotally coupled to the base. The second link is movably coupled to the piston rod. The second link is operatively coupled between the operating member and the first link to transfer movement of the operating member to the piston rod. A first end of the second link is pivotally arranged relative to the operating member. The second end of the second link is pivotally coupled to the first link.

Description

Hydraulic operating devices for human-powered vehicles

The present disclosure generally relates to a hydraulically operated device for a human-powered vehicle.

Human powered vehicles such as bicycles are sometimes provided with hydraulics. Some examples of hydraulic devices include hydraulically operated devices and hydraulically operated devices. The user operates the hydraulically operated device, thereby hydraulically operating the hydraulically operated device. For example, in a hydraulic braking system, the hydraulic brake operating device is fluidly connected to the hydraulic braking device by hydraulic hoses. The hydraulically operated device is hydraulically controlled by hydraulic fluid flowing through the hydraulic hose in response to the operation of the hydraulically operated device. That is, the user operates the brake lever of the hydraulic brake operating device to actuate the hydraulically operated device to engage the brake rotor or the rim of the wheel. In particular, operation of the brake lever forces hydraulic fluid through hydraulic hoses to hydraulically operated devices (eg, brake calipers). An example of a hydraulically operated device is disclosed in US Patent No. 10,676,151 B2 assigned to Shimano Corporation.

In general, the present disclosure relates to various features of hydraulically operated devices for human-powered vehicles. The term "human-powered vehicle" as used herein refers to a vehicle that can be driven by at least human power, but does not include a vehicle that uses only driving power other than human power. In particular, vehicles that use only an internal combustion engine as driving power are not included in human-powered vehicles. Human-powered vehicles are generally assumed to be compact, lightweight vehicles that sometimes do not require a permit to travel on public roads. There is no limit to the number of wheels on a human-powered vehicle. Human-powered vehicles include, for example, unicycles and vehicles with three or more wheels. Human-powered vehicles include, for example, various types of bicycles, such as mountain bikes, road bikes, city bikes, cargo bikes, recumbent bikes, and electrically assisted bicycles (E-bikes).

In view of the state of the known technology and according to a first aspect of the present disclosure, there is provided a hydraulically operated device for a human-powered vehicle. The hydraulic operating device basically includes a base, an operating member, a piston, a piston rod, a first connecting rod and a second connecting rod. The base includes cylinder bores. An operating member is pivotally coupled to the base about a first pivot axis between a rest position and an operative position. A piston is movably disposed in the cylinder bore. A piston rod is operably coupled to the piston. The first link is pivotally coupled to the base about a second pivot axis. A second link is movably coupled to the piston rod. A second link is operatively coupled between the operating member and the first link to transmit movement of the operating member to the piston rod. The second connecting rod includes a first end and a second end. The first end of the second link is pivotally configured relative to the operating member about a third pivot axis. The second end of the second link is pivotally coupled to the first link about a fourth pivot axis.

With the hydraulically operated device according to the first aspect, the first pivot axis can be provided at a close proximity to the handlebar. Therefore, the movement of the operating member follows the movement of the finger pulling the operating member.

According to a second aspect of the present disclosure, the hydraulic operating device according to the first aspect is constructed such that the operating member includes a user contact surface, the third pivot axis being closer to the user contact surface than the first pivot axis.

With the hydraulic operating device according to the second aspect, it is possible to provide a hydraulic operating device having a relatively compact profile.

According to a third aspect of the present disclosure, the hydraulic operating device according to the first aspect or the second aspect is constructed such that the first link includes a cam surface, and the piston rod includes a cam follower.

With the hydraulic operating device according to the third aspect, the force from the first link can be easily transmitted to the piston rod during movement of the operating member.

According to a fourth aspect of the present disclosure, the hydraulic operating device according to the third aspect is constructed such that the cam follower includes a roller contacting a cam surface of the first link.

With the hydraulic operating device according to the fourth aspect, the friction between the cam follower and the cam surface can be reduced to produce smooth operating motion.

According to a fifth aspect of the present disclosure, the hydraulic operating device according to any one of the first to fourth aspects is constructed such that the piston rod includes a guide member, and the base includes a guide surface, when the operating member is in the rest position and the operating position, the guide surface guides the guide member.

With the hydraulic operating device according to the fifth aspect, the movement of the piston rod can be controlled during movement of the operating member.

According to a sixth aspect of the present disclosure, the hydraulic operating device according to any one of the first to fifth aspects further includes a handlebar mounting structure coupled to the base.

With the hydraulic operating device according to the sixth aspect, the hydraulic operating device can be mounted to the handlebar so that the operating member can be easily operated while holding the handlebar.

According to a seventh aspect of the present disclosure, the hydraulically operated device according to the sixth aspect is constructed such that the handlebar mounting structure defines a handlebar mounting axis at the point where the base is mounted to the handlebar by the handlebar mounting structure. In the installed state, it extends linearly along the handlebar. Viewed in a pivot axis direction parallel to the first pivot axis, the cylinder bore defines a cylinder axis inclined towards the handlebar mounting axis as the cylinder bore extends away from the first pivot axis.

With the hydraulic operating device according to the seventh aspect, it is possible to provide a hydraulic operating device having a relatively compact profile with respect to the handlebar mounting shaft.

According to an eighth aspect of the present disclosure, the hydraulic operating device according to the sixth aspect or the seventh aspect is constructed such that the handlebar mounting structure includes the first clamping portion, the second clamping portion, and the clamping bolt. The first clamping portion has a first end attached to the base and a second end hinged to the second clamping portion. The second clamping part is attached to the base by clamping bolts.

With the hydraulic operating device according to the eighth aspect, it is possible to easily attach the hydraulic operating device to the handlebar.

According to a ninth aspect of the present disclosure, the hydraulic operating device according to any one of the fifth to seventh aspects is constructed such that the base includes a support seat having a handlebar contact surface that is in contact with the handlebar contact surface. The handlebar mounting structures are spaced apart to define a mounting space for mounting additional operating devices.

With the hydraulic operating device according to the ninth aspect, the base can be easily stabilized relative to the handlebar.

According to a tenth aspect of the present disclosure, the hydraulic operating device according to the ninth aspect is constructed such that the handlebar contact surface defines a partial cylinder.

With the hydraulically operated device according to the tenth aspect, the handlebar contact can securely contact the handlebar while minimizing any damage to the handlebar.

According to an eleventh aspect of the present disclosure, the hydraulic operating device according to any one of the first to tenth aspects is configured such that the first pivot axis of the operating member is arranged relative to the piston so that when the operating The operating member urges the piston in the cylinder bore from a non-actuated position to an actuated position when the member is actuated about the first pivot axis from the rest position to the operative position.

With the hydraulic operating device according to the eleventh aspect, the piston can be easily actuated using the operating member.

According to a twelfth aspect of the present disclosure, the hydraulic operating device according to any one of the first to eleventh aspects is configured to further include a piston position adjuster operatively coupled to the piston.

With the hydraulic operating device according to the twelfth aspect, the stroke length of the hydraulic operating device can be changed by changing the initial starting position of the piston.

According to a thirteenth aspect of the present disclosure, the hydraulic operating device according to any one of the first to twelfth aspects further includes a piston biasing element located between the base and the piston.

With the hydraulically operated device according to the thirteenth aspect, it is possible to ensure that the piston returns to the original position after actuation.

According to a fourteenth aspect of the present disclosure, the hydraulic operating device according to any one of the first to thirteenth aspects is constructed such that the operating member includes a user operating lever.

With the hydraulic operating device according to the fourteenth aspect, the operating member can be easily operated from the handlebar by using the user operating lever.

According to a fifteenth aspect of the present disclosure, the hydraulic operating device according to the fourteenth aspect is constructed such that the operating member further includes an actuating portion and a range adjuster. A range adjuster is operatively coupled between the user operating lever and the actuating portion to adjust a position of the user operating lever relative to the base, wherein the operating member is in the rest position.

With the hydraulically operated device according to the fifteenth aspect, the user can adjust the rest position of the user lever relative to the base to suit any hand size, riding type and/or individual rider preference.

According to a sixteenth aspect of the present disclosure, the hydraulic operating device according to any one of the first to fifteenth aspects further includes a hydraulic reservoir connected to the cylinder bore.

With the hydraulic operating device according to the sixteenth aspect, inconsistencies in the pressure applied by the hydraulic operating device due to volume changes of hydraulic fluid, volume changes of hydraulic fluid passages, or other factors can be avoided.

Moreover, other objectives, features, aspects and advantages of the disclosed hydraulic operating device will be apparent to those skilled in the art from the detailed description of preferred embodiments of the hydraulic operating device disclosed below together with the accompanying drawings.

Selected embodiments will now be described with reference to the drawings. It will be apparent from this disclosure to those skilled in the field of human-powered vehicles (e.g., bicycles) that the description of the following embodiments is provided for illustration only, and not to limit what is defined by the appended claims and their equivalents invention.

Referring first to Figures 1 to 5, according to a first exemplary embodiment, a hydraulically operated device 10 for a human-powered vehicle V is provided. Here, in the illustrated embodiment, the hydraulic operating device 10 is a hydraulic operating device provided for a human-powered vehicle V. As shown in FIG. The hydraulic operating device 10 is attached to the handlebar H of the human-powered vehicle V. As shown in FIG. Here, the human-powered vehicle V is preferably a bicycle.

The hydraulically operated device 10 is fluidly connected to the hydraulically operated device by means of hydraulic hoses 12 . As shown in Figures 1-5, the hydraulically operated device 10 is a right-hand hydraulic brake actuator that is operated by the rider's right hand from a resting or inoperative position (Figures 1-4) to an operative position (Figure 5) , to drive hydraulically operated devices such as disc brake calipers. It will be apparent to those skilled in the bicycle art that the configuration of the hydraulically operated device 10 is applicable to a left hydraulic brake actuation device operated by the rider's left hand. Furthermore, the hydraulically operated device 10 may be used with other vehicle components besides disc brake calipers.

The hydraulic operating device 10 includes a base 14 and an operating member 16 . The operating member 16 is pivotally coupled to the base 14 about a first pivot axis P1 between a rest position (see FIGS. 1 to 4 ) and an operating position (see FIG. 5 ). The operating member 16 includes a user operating lever 20 . User lever 20 is an elongated rod that is pivotally coupled to base 14 by pivot pin 22 . The pivot pin 22 defines a first pivot axis P1. The user operating lever 20 includes a mounting portion 20a and a user contact portion 20b. The mounting portion 20 a is pivotally mounted on a pivot pin 22 . The user contact portion 20b extends outwardly from the mounting portion 20a and is spaced apart from the handlebar H. As shown in FIG. The user contact portion 20b of the operation member 16 includes a user contact surface 20b1. A user contacts the user contact surface 20b1 of the user contact portion 20b so that the user operating lever 20 pivots on the pivot pin 22 around the first pivot axis P1.

Here, the operating member 16 further includes an actuating portion 24 and a reach adjuster 26 . The actuating portion 24 is pivotally attached to the mounting portion 20a of the user lever 20 by a pivot pin 22 . A range adjuster 26 is provided on the user lever 20 . A range adjuster 26 is operably coupled between the user lever 20 and the actuating portion 24 to adjust the position of the user lever 20 relative to the base 14 with the operating member 16 in the rest position. In this way, the distance or range between the user contact surface 20b1 of the user contact portion 20b and the handlebar H can be adjusted. Basically, the range adjuster 26 changes the relative position between the user joystick 20 and the base 14 .

In the illustrated embodiment, the range adjuster 26 basically includes a positioning shaft 26a, an anti-rotation plate 26b, and a knob 26c. The positioning shaft 26a is a threaded shaft with two parallel flats. The anti-rotation plate 26b engages the parallel flats such that the anti-rotation plate 26b does not move relative to the positioning shaft 26a. The anti-rotation plates 26b are provided in the pair of openings 20a1 of the mounting portion 20a. In this way, the anti-rotation plate 26b does not move relative to the user operating lever 20 . The anti-rotation plate 26b has a non-circular hole that engages with the parallel flat portion of the positioning shaft 26a. In this way, the positioning shaft 26a can axially move on the positioning shaft 26a, but cannot rotate relative to the positioning shaft 26a. The knob 26c is threadedly engaged with the positioning shaft 26a, so that the positioning shaft 26a moves relative to the knob 26c in the axial direction of the positioning shaft 26a. As a result of rotation of the knob 26c, the positioning shaft 26a moves toward or away from the actuating portion 24 to change the rest or initial position of the lever 20 relative to the base 14 for the user.

The hydraulically operated device 10 also includes a handlebar mounting structure 28 coupled to the base 14 . In a mounted state where the base 14 is mounted to the handlebar H via the handlebar mounting structure 28 , the handlebar mounting structure 28 defines a handlebar mounting axis A1 extending linearly along the handlebar H. As shown in FIG. The handlebar mounting axis A1 is substantially coincident with the longitudinal central axis of the handlebar H in the mounted state.

The base 14 includes a support base 30 having a handlebar contact surface 30a spaced apart from the handlebar mounting structure 28 to define a mounting space S1 for mounting additional operating devices. The support bracket 30 is spaced apart from the handlebar mounting structure 28 in an axial direction D1 parallel to the handlebar mounting axis A1. In the illustrated embodiment, the support stand 30 is integrally formed with the base 14 . Here, as shown in FIG. 4, the handlebar contact surface 30a defines a partial cylinder. The handlebar contact surface 30 a is configured to contact the handlebar H in the mounted state to which the base 14 is mounted by the handlebar mounting structure 28 . Preferably, the curvature of the handlebar contact surface 30a is substantially the same as or slightly larger than the curvature of the handlebar H. In this way, the handlebar contact surface 30a can firmly contact the handlebar H at a position spaced from the handlebar mounting structure 28, wherein the hydraulic operating device 10 is in the installed state in which the base 14 is mounted by the handlebar. The structure 28 is mounted to the handlebar H. As shown in FIG.

As shown in FIGS. 1 and 4 , the handlebar mounting structure 28 includes a first clamping portion 31 , a second clamping portion 32 and a clamping bolt 34 . The first clamping portion 31 and the second clamping portion 32 are rigid members made of suitable materials such as metal material or reinforced plastic material. The first clamping part 31 is hingedly connected to the second clamping part 32 . Specifically, as shown in FIG. 4 , the first clamping portion 31 has a first end 31 a and a second end 31 b. The first end 31 a is attached to the base 14 . The second end 31 b is hinged to the second clamping portion 32 . In particular, the second clamping portion 32 has a first end 32a and a second end 32b. The second end 32 b of the second clamping portion 32 is pivotally connected to the second end 31 b of the first clamping portion 31 by a pivot pin 36 . The second clamping portion 32 is attached to the base 14 by clamping bolts 34 . The first end 32 a of the second clamping portion 32 has a through hole through which the clamping bolt 34 passes in the installed state. The clamping bolt 34 is then threaded into a threaded hole formed in the base 14 . In this way, the first end 32 a of the second clamping portion 32 is releasably attached to the base 14 by the clamping bolt 34 . By tightening the clamping bolt 34 , the first end 32 a of the second clamping portion 32 moves toward the base 14 to fasten the first clamping portion 31 and the second clamping portion 32 around the handlebar H. As shown in FIG.

」表示。較佳地，如圖5所示，缸軸線A2及車把安裝軸線A1形成一度至十五度範圍內的傾斜角θ。在所示實施例中，傾斜角θ為五度。 Referring now primarily to FIGS. 6-9 , base 14 includes cylinder bore 40 . Viewed in a pivot axis direction D2 parallel to the first pivot axis P1 , the cylinder bore 40 defines a cylinder axis A2 inclined towards the handlebar mounting axis A1 as the cylinder bore 40 extends away from the first pivot axis P1 . Pivot axis direction D2 is represented by symbol " in Fig. 2 to Fig. 9

"express. Preferably, as shown in FIG. 5 , the cylinder axis A2 and the handlebar installation axis A1 form an inclination angle θ in the range of one degree to fifteen degrees. In the illustrated embodiment, the tilt angle Θ is five degrees.

The hydraulic operating device 10 also includes a piston 42 . A piston 42 is movably disposed in the cylinder bore 40 . The piston 42 moves linearly within the cylinder bore 40 along the cylinder axis A2. The operating member 16 is operatively coupled to the piston 42 to move the piston 42 within the cylinder bore 40 . During the movement of the piston 42 in response to the operation of the operating member 16 , hydraulic pressure is generated in the cylinder bore 40 by the movement of the piston 42 . In particular, piston 42 moves linearly within cylinder bore 40 to force hydraulic fluid out of cylinder bore 40 via hose attachment port 57 , via hydraulic hose 12 to a hydraulically operated device (eg, a brake). The first pivot axis P1 of the operating member 16 is arranged relative to the piston 42 such that when the operating member 16 is actuated about the first pivot axis P1 from the rest position to the operating position, the operating member 16 places the piston 42 in the cylinder bore 40. from the non-actuated position to the actuated position.

As shown in FIG. 6 , the cylinder bore 40 has a first opening 44 and a second opening 46 . The first opening 44 is larger in diameter than the second opening 46 . The piston 42 is inserted into the cylinder bore 40 from the first opening 44 . The piston 42 is provided with a first annular sealing ring 48 and a second annular sealing ring 50 . A first annular seal ring 48 is provided on the piston 42 for sealing the first opening 44 of the cylinder bore 40 . The first annular sealing ring 48 and the second annular sealing ring 50 are preferably elastomeric (eg, rubber) O-rings with a uniform cross-sectional profile. When the piston 42 moves within the cylinder bore 40 , the first annular seal ring 48 and the second annular seal ring 50 slidably contact the inner surface of the cylinder bore 40 . The cylinder bore 40 of the piston 42 and the second annular seal ring 50 define a hydraulic chamber that changes size in response to operation of the operating member 16 . The hydraulic chamber is filled with hydraulic fluid such as mineral oil.

The hydraulically operated device 10 also includes a piston biasing element 54 between the base 14 and the piston 42 . Specifically, a piston biasing element 54 is disposed within cylinder bore 40 and biases piston 42 to a non-actuated (rest or non-operating) position. Here, the piston biasing element 54 is a helical compression spring that biases the piston 42 into the non-actuated position. The piston biasing element 54 also biases the operating member 16 to its rest position (ie, no external force is applied to the operating member 16). Thus, as the piston 42 moves within the cylinder bore 40 in response to operation of the operating member 16 , the piston 42 compresses the piston biasing element 54 .

As shown in FIG. 7 , the hydraulic operating device 10 further includes a piston rod 56 . Piston rod 56 is operably coupled to piston 42 . The hydraulic operating device 10 further includes a first link 58 and a second link 60 . The first link 58 and the second link 60 are operatively connected between the actuating portion 24 of the operating member 16 and the piston rod 56 . Thus, the operating member 16 is connected to the piston 42 via the piston rod 56 , the first connecting rod 58 and the second connecting rod 60 . In other words, the piston rod 56 , the first connecting rod 58 and the second connecting rod 60 operably connect the operating member 16 to the piston 42 to transmit movement of the operating member 16 to the piston 42 .

Here, the first link 58 includes a cam surface 58a. The cam surface 58 a contacts the piston rod 56 to urge the piston rod 56 in response to movement of the operating member 16 . The piston rod 56 includes a cam follower 62 . The cam follower 62 contacts the cam surface 58 a of the first link 58 to receive thrust from the cam surface 58 a of the first link 58 . Preferably, the cam follower 62 includes a roller 62a that contacts the cam surface 58a of the first link 58 . Therefore, when the thrust train of the cam surface 58 a of the first link 58 is transmitted to the cam follower 62 of the piston rod 56 in response to the movement of the operating member 16 , the roller 62 a of the cam follower 62 moves on the first link 58 . Roll on the cam surface 58a.

The first link 58 is pivotally coupled to the base 14 about the second pivot axis P2. In particular, the first link 58 is pivotally coupled to the base 14 by a pivot pin 65 . The pivot pin 65 defines a second pivot axis P2. The second link 60 includes a first end 60a and a second end 60b. Also, the first link 58 is pivotally coupled to the second end 60b of the second link 60 by a trunnion 58b of the first link 58 . Therefore, as shown in FIG. 10 , the second link 60 includes a first link plate 60A and a second link plate 60B. The first link 58 is provided between the first link plate 60A and the second link plate 60B. The first end 60a of the second link 60 is pivotally arranged relative to the operating member 16 about the third pivot axis P3. In particular, the first end 60a of the second link 60 is pivotally coupled to the actuating portion 24 of the operating member 16 via the trunnion 24a of the actuating portion 24 . The trunnion 24a of the actuating portion 24 defines a third pivot axis P3. As mentioned above, the operating member 16 includes the user contact surface 20b1. The third pivot axis P3 is closer to the user contact surface 20b1 than the first pivot axis P1. The second end 60b of the second link 60 is pivotally coupled to the first link 58 about the fourth pivot axis P4. The trunnion 58b of the first link 58 defines a fourth pivot axis P4. As such, the second link 60 is movably coupled to the piston rod 56 . A second link 60 is operatively coupled between the operating member 16 and the first link 58 to transmit movement of the operating member 16 to the piston rod 56 .

In the illustrated embodiment, the piston rod 56 includes a guide member 64 and the base 14 includes a guide surface 66 . The guide surface 66 guides the guide member 64 when the operating member 16 is moved between the rest position and the operative position. Here, one end of the guide member 64 is provided with a first roller 64A, and the other end of the guide member 64 is provided with a second roller 64B. The guiding surface 66 includes a first guiding groove 66A and a second guiding groove 66B. The first roller 64A is supported in the first guide groove 66A, and the second roller 64B is supported in the second guide groove 66B.

As seen in FIG. 12 , in the illustrated embodiment, the hydraulically operated device 10 also includes a hydraulic reservoir 80 connected to the cylinder bore 40 . The hydraulic reservoir 80 is filled with hydraulic fluid, such as mineral oil. When the hydraulic operating device 10 is in an installed state, the hydraulic reservoir 80 is disposed above the cylinder hole 40 . Preferably, hydraulic reservoir 80 is an elongated chamber extending along cylinder bore 40 . That is, the hydraulic reservoir 80 has a longitudinal axis A3 that is oblique to the cylinder axis A2 of the cylinder bore 40 . Hydraulic reservoir 80 is fluidly connected to cylinder bore 40 . Here, hydraulic fluid within hydraulic reservoir 80 is supplied to cylinder bore 40 via first fluid port 82 , as seen in FIG. 12 . The first fluid port 82 is open to the hydraulic chamber 52 of the cylinder bore 40 when the piston 42 is in the rest position (ie, the operating member 16 is in the inoperative or rest position). As seen in FIG. 12 , the hydraulic reservoir 80 is further fluidly connected to the cylinder bore 40 by a second fluid port 84 that is in contact with the first annular seal ring 48 and the second annular seal ring 50 in the area between the first annular seal ring 48 and the second annular seal ring 50 . The cylinder bore 40 communicates. Optionally, a diaphragm 86 may be provided in hydraulic reservoir 80 as needed and/or desired. Furthermore, optionally, the base 14 may be provided with a relief valve 88 fluidly connected to the hydraulic fluid chamber of the hydraulic reservoir 80 .

As seen in FIGS. 7 , 9 and 13 , the hydraulically operated device 10 also includes a piston position adjuster 90 operatively coupled to the piston 42 . The piston position regulator 90 includes an adjustment guide 92 and an adjustment bolt 94 . The adjustment guide 92 is an annular member that is pivotally attached to the base 14 by a pivot pin 96 . The piston rod 56 passes through the central opening 92 a of the adjustment guide body 92 and contacts the piston 42 . A biasing element 98 is provided between the base 14 and the operating member 16 such that the piston rod 56 is biased against the piston 42 . That is, the biasing element 98 creates a biasing force that biases the cam surface 58 a of the first link 58 against the cam follower 62 of the piston rod 56 . The biasing force of the biasing element 98 is less than the biasing force of the piston biasing element 54 such that the biasing element 98 does move the piston 42 away from the adjustment guide 92 . Here, the biasing element 98 is a torsion spring having a helical portion positioned on the pivot pin 22 , a first leg contacting the base 14 and a second leg contacting the mounting portion 20 a of the user lever 20 . As seen in FIG. 13 , the adjustment bolt 94 is screwed into the base 14 such that the tip of the adjustment bolt 94 contacts the adjustment guide body 92 . Thus, by screwing the adjustment bolt 94 into or out of the threaded hole of the base 14 , the adjustment guide 92 pivots on the pivot pin 96 to change the rest or initial position of the piston 42 .

When understanding the scope of the present invention, the term "comprising" and its derivatives used herein are open-ended terms, which specify the presence of stated features, elements, components, groups, integers and/or steps, but do not exclude the presence of other Features, elements, components, groups, integers and/or steps are not recited. The foregoing also applies to words with similar meanings, such as the terms "comprising", "having" and their derivatives. In addition, unless otherwise specified, the terms "component", "section", "portion", "member" or "element" when used in the singular may have the dual meaning of a single part or a plurality of parts.

The following directional terms are used herein "frame-facing side", "non-frame-facing side", "forward", "rearward", "front", "rear", "upper", "lower", "above" , "below", "up", "down", "top", "bottom", "side", "upright", "horizontal", "vertical", and "landscape" and any other similar directional terms Refers to these orientations of human-powered vehicles (such as bicycles) in the upright riding position and equipped with hydraulically operated devices. Accordingly, these directional terms used to describe hydraulically operated devices should be interpreted relative to a human-powered vehicle (eg, bicycle) equipped with hydraulically operated devices in an upright riding position on a horizontal surface. The terms "left" and "right" are used to denote the "right" side when referring to the right side when viewed from the rear of a human-powered vehicle (such as a bicycle) and the left side when referring to the rear of a human-powered vehicle (such as a bicycle) indicates the "left" side.

The phrase "at least one" as used in this disclosure means "one or more" of the desired options. For example, if the number of options is two, the phrase "at least one or at least one" is used in this disclosure to mean "only a single option" or "both of the two options." As another example, if the number of options is three or more, the phrase "at least one or at least one" is used in this disclosure to mean "only one single option" or "any combination of two options or more ". In addition, the term "and/or" used in this disclosure means "either or both".

Also, it should be understood that although the terms "first" and "second" may be used herein to describe various components, these components should not be limited by these terms. These terms are only used to distinguish one component from another. Thus, for example, a first component discussed above could be termed a second component, and vice versa, without departing from the teachings of the present invention.

The terms "attached" or "attached" as used herein encompass configurations in which an element is directly secured to another element by directly attaching the element to another element, configurations in which an element is attached to an or a plurality of intermediate members and the one or more intermediate members are added to the other element and the element is indirectly fixed to the configuration of the other element, and one element is integrated with another element, that is, an element A configuration that is essentially part of another component. This definition also applies to words of similar meaning, such as the terms "incorporated", "connected", "coupled", "mounted", "bonded", "fixed" and their derivatives. Finally, terms of degree such as "substantially or substantially", "approximately or approximately", and "approximately or approximately" as used herein mean that the term they modify has an amount of deviation such that the end result will not be substantially changed.

While only selected embodiments have been chosen to illustrate the invention, it will be apparent to those skilled in the art from this disclosure that, without departing from the scope of the invention as defined in the appended patent claims, it may be possible to Implement various changes and modifications. For example, unless expressly stated otherwise, the size, shape, location, or orientation of the various components may be changed as needed and/or desired so long as the changes do not materially affect their intended function. . Unless expressly stated otherwise, components shown to be directly connected or in contact with each other may have intermediate structures disposed therebetween as long as such changes do not materially affect their intended function. The functions of one element can be performed by two, and vice versa, unless explicitly stated otherwise. The structures and actions or functions of one embodiment can be adopted in another embodiment. Not all advantages are necessarily present in a particular embodiment at the same time. Each distinctive feature which differs from the prior art, alone or in combination with other features, should also be considered a separate statement of a further invention of the applicant, including the structural and/or functional concepts embodied by such feature. Therefore, the above descriptions of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the present invention defined by the appended claims and their equivalents.

10: Hydraulic operating device 12:Hydraulic hose 14: base 16: Operating components 20: User joystick 22: pivot pin 24: Actuation part 26: Range adjuster 28:Handlebar mounting structure 30: support support 31: The first clamping part 32: Second clamping part 34: clamp bolt 36: pivot pin 40: Cylinder bore 42: Piston 44: First opening 46: Second opening 48: The first annular sealing ring 50: Second annular sealing ring 54: Piston biasing element 56: Piston rod 58: The first connecting rod 60: Second connecting rod 62: Cam follower 64: guide member 65: pivot pin 66: Guide surface 80: hydraulic reservoir 82: first fluid port 84: Second fluid port 86: Diaphragm 88: Relief valve 90: Piston position regulator 92:Adjust guide body 94:Adjustment bolt 96: pivot pin 98: Bias element 20a: Installation Department 20a1: opening 20b: user contact part 20b1: User contact surface 24a: Trunnion 26a: Positioning axis 26b: Anti-rotation plate 26c: Knob 30a: Handlebar contact surface 31a: first end 31b: second end 32a: first end 32b: second end 58a: Cam surface 58b: Trunnion 60A: The first connecting rod plate 60a: first end 60B: Second connecting rod plate 60b: second end 62a: Roller 64A: The first roller 64B: Second roller 66A: The first guide groove 66B: Second guide groove 92a: Center opening A1: handlebar installation axis A2: cylinder axis A3: Longitudinal axis D1: Axial D2: Pivot axis direction H: handlebar P1: First Pivot Line P2: Second Pivot Line P3: Third Pivot Line P4: Fourth Pivot Line S1: Installation space V: human vehicle θ: tilt angle

Reference is now made to the attached drawings forming part of this original disclosure:

[ Fig. 1 ] is a top perspective view of a part of a handlebar of a human-powered vehicle equipped with a hydraulic operating device according to one illustration.

[ Fig. 2 ] is a plan view of part of the handlebar and the hydraulic operating device shown in Fig. 1 , with the operating member in a rest position.

[ Fig. 3 ] is a bottom view of part of the handlebar and the hydraulic operating device shown in Figs. 1 and 2, with the operating member in a rest position.

[ Fig. 4 ] is an outer end front view of the hydraulic operating device shown in Figs. 1 to 3 , in which a handlebar is shown in section.

[ Fig. 5 ] is a plan view of a portion of the handlebar and the hydraulic operating device shown in Figs. 1 to 4 , but in which the operating member has been moved to the operating position.

[ Fig. 6 ] is a plan view of the hydraulic operating device shown in Figs. 1 to 5, in which a part of the base has been cut away and the operating member is in a rest position.

[ Fig. 7 ] It is a partially enlarged plan view of a part of the hydraulic operating device shown in Fig. 6 .

[ Fig. 8 ] is a plan view of the hydraulic operating device similar to Fig. 6, in which a part of the base has been cut away, but in which the operating member is in the operating position.

[ Fig. 9 ] It is a partially enlarged plan view of a part of the hydraulic operating device shown in Fig. 8 .

[ Fig. 10 ] is a top perspective view of the hydraulically operated device shown in Figs. 1 to 9, in which selected parts have been exploded from the base.

[ Fig. 11 ] is a sectional view of the hydraulic operating device taken along section line 11-11 in Fig. 2 .

[ Fig. 12 ] is a sectional view of the hydraulic operating device taken along section line 12 - 12 in Fig. 1 .

[ Fig. 13 ] is a front view of the outer end of the hydraulic operating device with a part cut away to reveal the piston position adjuster.

16: Operating components

20: User joystick

20a: Installation Department

20a1: opening

20b: user contact part

20b1: User contact surface

22: pivot pin

24: Actuation part

24a: Trunnion

26: Range adjuster

26a: Positioning axis

26b: Anti-rotation plate

26c: Knob

30: support support

30a: Handlebar contact surface

40: Cylinder bore

42: Piston

50: Second annular sealing ring

56: Piston rod

58: The first connecting rod

58a: Cam surface

58b: Trunnion

60: Second connecting rod

60A: The first connecting rod plate

60a: first end

60b: second end

62: Cam follower

62a: Roller

64: guide member

64A: The first roller

65: pivot pin

90: Piston position regulator

92:Adjust guide body

96: pivot pin

98: Bias element

P1: First Pivot Line

P2: Second Pivot Line

P3: Third Pivot Line

P4: Fourth Pivot Line

Claims (16)

A hydraulic operating device for a human-powered vehicle, the hydraulic operating device comprising: including the base of the cylinder bore; an operating member pivotally coupled to the base about a first pivot axis between a rest position and an operative position; a piston movably disposed in the cylinder bore; a piston rod operatively coupled to the piston; a first link pivotally coupled to the base about a second pivot axis, the second link movably coupled to the piston rod; and a second link operatively coupled between the operating member and the first link to transmit movement of the operating member to the piston rod, the second link including a first end and a second end, The first end of the second link is pivotably configured relative to the operating member about a third pivot axis, and the second end of the second link is pivotally coupled to the first end about a fourth pivot axis. One linkage. The hydraulic operating device according to claim 1, wherein, The operating member includes a user contact surface, the third pivot axis being closer to the user contact surface than the first pivot axis. The hydraulic operating device according to claim 1 or 2, wherein The first link includes a cam surface and the piston rod includes a cam follower. The hydraulic operating device according to claim 3, wherein, The cam follower includes a roller contacting the cam surface of the first link. The hydraulic operating device according to claim 1 or 2, wherein the piston rod includes a guide member, and The base includes a guide surface that guides the guide member as it moves between the rest position and the operative position. The hydraulic operating device according to claim 1 or 2, further comprising A handlebar mounting structure is coupled to the base. The hydraulic operating device according to claim 6, wherein, the handlebar mounting structure defines a handlebar mounting axis extending linearly along the handlebar in the mounted state of the base mounted to the handlebar by the handlebar mounting structure, and Viewed in a pivot axis direction parallel to the first pivot axis, the cylinder bore defines a cylinder axis inclined towards the handlebar mounting axis as the cylinder bore extends away from the first pivot axis. The hydraulic operating device according to claim 6, wherein, The handlebar mounting structure includes a first clamping portion, a second clamping portion and a clamping bolt, the first clamping portion has a first end attached to the base and a second clamping portion hinged to the second clamping portion. two ends, and the second clamping part is attached to the base by the clamping bolt. The hydraulic operating device according to claim 5, wherein, The base includes a support seat having a handlebar contact surface spaced from the handlebar mounting structure to define a mounting space for mounting an additional operating device. The hydraulic operating device according to claim 9, wherein, The handlebar contact surface defines a partial cylinder. The hydraulic operating device according to claim 1 or 2, wherein The first pivot axis of the operating member is arranged relative to the piston such that when the operating member is actuated about the first pivot axis from the rest position to the operating position, the operating member places the piston in the cylinder bore Push from non-actuated position to actuated position. The hydraulic operating device according to claim 1 or 2, further comprising A piston position adjuster is operably coupled to the piston. The hydraulic operating device according to claim 1 or 2, further comprising A piston biasing element between the base and the piston. The hydraulic operating device according to claim 1 or 2, wherein The operating member includes a user operating lever. The hydraulic operating device according to claim 14, wherein, The operating member further includes an actuating portion and a range adjuster operatively coupled between the user operating lever and the actuating portion to adjust the position of the user operating lever relative to the base , wherein the operating member is in the rest position. The hydraulic operating device according to claim 1 or 2, further comprising A hydraulic reservoir connected to the cylinder bore.

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