TWI741203B - Hydraulic operating device - Google Patents

Abstract

[Question] To provide a hydraulic operating device that can keep the appearance around the handlebar in a good condition. The hydraulic operating device is provided with: a cylinder housing including a cylinder bore extending along the axis of the cylinder; The connecting member of the hose is connected and arranged on the connecting portion of the outer peripheral surface of the cylinder housing; the mounting portion is used to clamp the handlebar rod, and is included in the mounting state for clamping the handlebar rod to define the vehicle Clamping member for clamping the shaft of the rod; the cylinder hole, the cylinder shaft is arranged so as to be non-orthogonal with respect to the handlebar rod clamping shaft, and the outer peripheral surface of the cylinder housing has: facing The first part of the handlebar rod and the second part on the opposite side to the first part; the connecting portion is provided on the outer peripheral surface of the cylinder housing outside the second part.

Description

Hydraulic operating device

The present invention relates to a hydraulic operating device, and more particularly, to a hydraulic operating device for a small vehicle including a bicycle.

The known hydraulic operating device can be installed on the handlebar of a small vehicle such as a bicycle. The hydraulic operating device is connected to a hose via a hydraulic brake device for braking the wheels of a small vehicle.

[The problem to be solved by the invention]

Because of the arrangement of the hose extending from the hydraulic operating device, the appearance around the handlebar may be adversely affected.　　The object of the present invention is to provide a hydraulic operating device that can maintain the appearance around the handlebar in a good condition. [Means to solve the problem]

The hydraulic operating device of the first aspect of the present invention includes a cylinder housing having a cylinder bore extending along the axis of the cylinder, and mounting of the cylinder housing to a handlebar of a small vehicle Part, a connecting part that can connect a connecting member for connecting a hose and is provided on the outer circumferential surface of the cylinder housing; the mounting part is used to clamp the handlebar, and is included in clamping the handlebar The mounting state is used to define the clamping member of the handlebar rod clamping axis; the cylinder hole is configured so that the cylinder block axis is non-orthogonal to the handlebar rod clamping axis, and the cylinder housing The outer peripheral surface includes: a first portion facing the handlebar rod, and a second portion opposite to the first portion; the connecting portion is provided on the second portion on the outer peripheral surface of the cylinder housing Outside.　　 Since the connecting portion is close to the handlebar, the hose extending from the connecting member is also close to the handlebar. Therefore, the appearance around the handlebar can be maintained in a good condition.

The hydraulic operating device of the second aspect of the present invention includes: a cylinder housing having a cylinder hole extending along the axis of the cylinder, and mounting the cylinder housing to a handlebar of a small vehicle Part, the connecting member for connecting the hose can be connected and arranged in the connecting part of the cylinder housing; the mounting part is used to clamp the handlebar rod, and is included in the mounted state of clamping the handlebar rod A clamp used to define the gripping axis of the handlebar rod; the cylinder bore is configured so that the cylinder axis is non-orthogonal with respect to the gripping axis of the handlebar rod, and the cylinder housing has: The end portion and the second end portion closer to the gripping axis of the handlebar rod in the mounted state than the first end portion; the second end portion is arranged to be clamped to the handlebar rod in the mounted state The distance between the axis is 40mm or less.　　 When the connecting portion is provided at the second end of the cylinder housing, the hose extending from the connecting member approaches the handlebar rod. Therefore, the appearance around the handlebar can be maintained in a good condition.

According to the hydraulic operating device of the third type according to the second type, the connecting portion is provided on the outer peripheral surface of the cylinder housing.　　 Therefore, the appearance around the handlebar can be maintained in a good condition.

According to the third aspect of the fourth aspect of the hydraulic operating device, the outer peripheral surface of the cylinder housing has: a first portion facing the handlebar, and a first portion opposite to the first portion Part 2: The connecting portion is provided on the outer peripheral surface of the cylinder housing outside the second part.　　 Since the connecting portion is close to the handlebar, the hose extending from the connecting member is also close to the handlebar. Therefore, the appearance around the handlebar can be maintained in a good condition.

According to the hydraulic operating device of the fifth type according to any one of the first to fourth types, the cylinder housing and the cylinder axis of the cylinder hole are along the handlebar rod of the clamp Clamp the axis.　　 Since the hose extending from the connecting member is arranged along the handlebar, the appearance around the handlebar can be maintained in a good condition.

According to the hydraulic operating device of the sixth form according to any one of the first to fifth forms, the connecting portion is provided between the cylinder shaft center and the handlebar clamping shaft center.　　 Since the connecting part is closer to the handlebar, the hose extending from the connecting member is also closer to the handlebar. Therefore, the appearance around the handlebar can be maintained in a better condition.

According to the hydraulic operating device of the seventh type according to the first or fourth type, the connecting portion is provided in the first portion on the outer peripheral surface of the cylinder housing.　　 Since the connecting part is closer to the handlebar, the hose extending from the connecting member is also closer to the handlebar. Therefore, the appearance around the handlebar can be maintained in a better condition.

The hydraulic operating device of the eighth form according to any one of the first to seventh forms, further includes: a piston provided to be movable in the cylinder bore, and a piston provided in the cylinder housing for A lever that moves the piston to swing around an operating shaft; the operating shaft is provided at the first end of the cylinder housing, and the connecting portion is provided at the first end in a direction along the axis of the cylinder The part is the second end of the cylinder housing on the opposite side.　　Since the operating shaft and the connecting portion are provided in a separate position in the cylinder housing, the movable range of the piston can be set to be larger. Therefore, the degree of freedom in the selection of the lever operation amount can be increased.

According to the hydraulic operating device of the ninth aspect according to the eighth aspect, the mounting portion is provided at the first end portion of the cylinder housing.　　 Since the mounting part and the connecting part are provided in separate positions in the cylinder housing, the connecting part is close to the center of the handlebar. Therefore, Coco can shorten the length of the hose and keep the appearance around the handlebar in a good condition.

According to the hydraulic operating device of the tenth form according to any one of the first to ninth forms, the connecting portion includes a connecting hole for connecting the connecting member.　　 Therefore, the connection member can be appropriately connected to the connection part.

According to the hydraulic operating device of the eleventh type according to the tenth type, the connecting hole defines a connecting shaft center, and the connecting shaft center is orthogonal to the cylinder shaft center.　　 Therefore, the appearance around the handlebar can be maintained in a good condition.

The hydraulic operating device of the twelfth type according to any one of the first to eleven types is further provided with an oil tank that stores operating oil and can supply the operating oil to the cylinder bore.　　 Therefore, an appropriate amount of hydraulic oil can be supplied into the cylinder housing. [Effects of the invention]

With the hydraulic operating device of the present invention, the appearance around the handlebar can be maintained in a good state.

(Embodiment) "With reference to Fig. 1, the hydraulic brake system 1 mounted on a small vehicle including a bicycle will be described. The so-called "small vehicles" here refer to vehicles that do not require a driving license on public roads, are electric (including auxiliary electric), or non-electric (manpower), and do not include those that require a driving license on public roads and use an internal combustion engine as a power source. Vehicles or electric vehicles.

The brake system 1 includes a hydraulic operating device 10 according to an embodiment of the invention. The brake system 1 is, for example, a bicycle brake system, and the hydraulic operating device 10 is, for example, a bicycle hydraulic operating device. In one example, the brake system 1 further includes a connecting member 2, a hose 4, and a brake device (not shown) such as a disc brake caliper or a rim caliper. The brake system 1 shown in Fig. 1 is a brake system for braking the front wheel or the rear wheel (both not shown) of a bicycle.

The hydraulic operating device 10 is attached to, for example, a handlebar H of a bicycle. The hydraulic operating device 10 is connected to the brake device via the connecting member 2 and the hose 4. The hose 4 is filled with hydraulic oil. In response to the input to the hydraulic operating device 10, hydraulic pressure is applied to the braking device to operate the braking device.

The hydraulic operating device 10 includes: a cylinder housing 12, a mounting portion 14 for attaching the cylinder housing 12 to a handlebar H of a small vehicle, and a cylinder housing 12 that can be connected to a hose The connection part 16 to which the connection member 2 of 4 is connected. The cylinder housing 12 has a cylinder hole 12A extending along the cylinder axis CA (refer to FIG. 3). The mounting portion 14 is used to clamp the handlebar H, and includes a clamping member 14A used to define the handlebar clamping axis SA in the installed state of clamping the handlebar H. The handlebar gripping axis SA is along the center axis of the handlebar H. In one example, the gripping axis SA of the handlebar rod coincides with the center axis of the handlebar rod H. The cylinder hole 12A is arranged so that the cylinder axis CA is non-orthogonal with respect to the handlebar clamping axis SA. In one example, the cylinder housing 12 allows the cylinder axis CA of the cylinder bore 12A to clamp the axis SA along the handlebar of the clamping member 14A. The relationship between the cylinder axis CA and the handlebar clamping axis SA is, for example, parallel.

The cylinder housing 12 has a first end 18 and a second end 20 opposite to the first end 18 in the direction along the cylinder axis CA. The second end 20 is closer to the center of the handlebar H than the first end 18 in the mounted state. The second end 20 is closer to the handlebar clamping axis SA than the first end 18 in the mounted state. Specifically, the second end portion 20 includes a protruding portion 20A that protrudes toward the handlebar H side with respect to the first end portion 18. The distance between the protrusion 20A and the handlebar clamping axis SA is shorter than the distance between the first end 18 and the handlebar clamping axis SA. The mounting portion 14 is provided at the first end portion 18 of the cylinder housing 12. The connecting portion 16 is provided at the second end portion 20 of the cylinder housing 12.

The connecting portion 16 is provided on the outer peripheral portion 22 of the cylinder housing 12. The outer peripheral surface 22 of the cylinder housing 12 has a first portion 22A facing the handlebar H, and a second portion 22B opposite to the first portion 22A. In one example, the outer peripheral surface 22 of the cylinder housing 12 further has a third portion 22C facing upward in the mounted state, and a fourth portion 22D facing downward in the mounted state (refer to FIG. 2). The outer peripheral surface 22 of the cylinder housing 12 is formed by the first portion 22A, the second portion 22B, the third portion 22C, and the fourth portion 22D. Here, when the cylinder housing 12 is cylindrical, the first portion 22A, the second portion 22B, the third portion 22C, and the fourth portion 22D are respectively defined in a range of 90° around the cylinder axis CA, for example.

The connecting portion 16 is provided on the outer peripheral portion 22 of the cylinder housing 12 outside the second portion 22B. The connecting portion 16 is provided between the cylinder axis CA and the handlebar clamping axis SA. In one example, the connecting portion 16 is provided in the first portion 22A on the outer peripheral surface 22 of the cylinder housing 12. That is, the connecting portion 16 is provided in the first portion 22A of the second end portion 20 in the cylinder housing 12. Specifically, the connecting portion 16 is provided on the protruding portion 20A of the second end portion 20.

The second end 20 is arranged such that the distance D (refer to Fig. 2) between the second end 20 and the handlebar clamping axis SA is 40 mm or less in the attached state. The distance D between the second end 20 and the handlebar clamping axis SA is defined by the first portion 22A of the second end 20 to define the distance between the portion closest to the handlebar H and the handlebar clamping axis SA. In a preferable example, the second end portion 20 is arranged such that the distance D between the second end portion 20 and the handlebar gripping axis SA is 35 mm or less in the mounted state. In a better example, the second end 20 is arranged such that the distance D from the handlebar gripping axis SA is 30 mm or less in the installed state. An example of the distance D is about 25 mm.

As shown in FIG. 1, the hydraulic operating device 10 is further provided with an oil tank 24 that stores operating oil and can supply the operating oil to the cylinder bore 12A. The oil tank 24 is provided in the third portion 22C on the outer peripheral surface 22 of the cylinder housing 12, for example. An example of the shape of the oil tank 24 is a cylindrical shape with a thin tip. The oil tank 24 includes a space 24A that can store operating oil (refer to Fig. 3). The space 24A allows the working oil to circulate and communicates with the cylinder bore 12A (refer to Figure 3). The mounting portion 14 connects the cylinder housing 12 and the oil tank 24 on the side of the first portion 22A of the cylinder housing 12 (refer to FIG. 2).

The hydraulic operating device 10 further includes a lever 28 provided in the cylinder housing 12 and swinging around the operating shaft 26. The operating shaft 26 is provided at the first end 18 of the cylinder housing 12. In one example, the operating shaft 26 is provided at the first end 18 of the cylinder housing 12 on the second portion 22B side. The operating shaft 26 extends in the vertical direction in the mounted state. The operating shaft 26 defines a swing axis PA. The lever 28 is provided in the cylinder housing 12 and can swing in a direction approaching the handlebar H with respect to the operating shaft 26 and a direction away from the handlebar H with respect to the operating shaft 26 centered on the swing axis PA. The connecting portion 16 is provided between the cylinder axis CA and the handlebar clamping axis SA when viewed from a direction parallel to the swing axis PA.

As shown in Fig. 3, the hydraulic operating device 10 further includes a piston 30 provided to be movable in the cylinder bore 12A. The piston 30 is connected to the lever 28 via a piston rod (not shown), and is movable in the cylinder bore 12A in conjunction with the lever 28 around the operating shaft 26. That is, the lever 28 can move the piston 30 along the cylinder bore 12A by swinging around the operating shaft 26. In one example, when the lever 28 swings in a direction approaching the handlebar H, the piston 30 moves toward the second end 20 side of the cylinder housing 12, and hydraulic pressure is applied to the brake device via the hose 4 and the like. On the other hand, when the lever 28 swings in a direction away from the handlebar H, the piston 30 moves toward the first end 18 side of the cylinder housing 12. In the space 24A of the oil tank 24, for example, a diaphragm (not shown) is provided.

As shown in FIG. 4, the connecting portion 16 includes a connecting hole 32 to which the connecting member 2 is connected. A screw groove 32A is formed on the inner peripheral surface of the connecting hole 32. The connecting hole 32 forms a first flow path 34 through which the hydraulic oil flows. The first flow path 34 is connected to the cylinder bore 12A. The connecting hole 32 defines the connecting axis CS. The connection axis CS coincides with the central axis of the connection hole 32, for example. The connection axis CS coincides with the central axis of the first flow path 34, for example. The connecting axis CS crosses the cylinder axis CA. In one example, the connection axis CS is orthogonal to the cylinder axis CA.

The connecting member 2 is connected to the connecting portion 16 via an intermediate member 36 and a fixing bolt 38, for example. The intermediate member 36 includes a second flow path 36A through which the operating oil circulates. The second flow path 36A penetrates the intermediate member 36 in a direction along the connection axis CS. The second flow path 36A is formed in the intermediate member 36 and is connected to the first flow path 34 by connecting the intermediate member 36 to the connecting portion 16. The fixing bolt 38 includes a head 40 and a shaft 42. A tool engagement portion 40A is formed in the head 40. In one example, the tool engagement portion 40A is a recessed portion capable of engaging a tool such as a hexagon wrench. The shaft portion 42 includes a third flow path 42A and a threaded convex portion 42B formed on the outer peripheral surface. For example, the third flow path 42A is formed as a plurality of grooves extending in the axial direction on the outer peripheral surface of the shaft 42. In one example, the third flow path 42A is formed in the threaded convex portion 42B of the shaft portion 42. The third flow path may be a through hole that penetrates the shaft portion 42. The threaded convex portion 42B of the shaft portion 42 can be engaged with the threaded groove 32A of the connecting hole 32.

The connecting member 2 includes an annular part 6 through which the fixing bolt 38 is inserted, and a connecting part 8 through which the hose 4 is connected. The connecting member 2 is a so-called stringed connecting member. The connecting member 2 is clamped by the head 40 of the fixing bolt 38 and the intermediate member 36 by screwing the fixing bolt 38 into the connecting hole 32. Thereby, the connecting member 2 is connected to the connecting portion 16. The inner peripheral surface of the annular portion 6 forms a fourth flow path 6A through which the operating oil circulates. The fourth flow path 6A penetrates the annular portion 6 in the direction along the connection axis CS. The fourth flow path 6A is formed in the annular portion 6 by connecting the connecting member 2 to the connecting portion 16, and the second flow path 36A of the intermediate member 36 and the third flow path 42A of the fixing bolt 38 are connected.

The connecting portion 8 is provided in the annular portion 6 in a state where the connecting member 2 is connected to the connecting portion 16, and extends along the cylinder axis CA toward the bicycle center direction D1. The annular portion 6 and the connecting portion 8 are formed integrally, for example. The connecting portion 8 forms a fifth flow path (not shown) through which the operating oil flows on the inner peripheral surface. The fifth flow path penetrates the connecting portion 8 in the direction in which the connecting portion 8 extends. One end (not shown) of the fifth flow path is connected to the fourth flow path 6A. The hose 4 is connected to the other end (not shown) of the fifth flow path. The hose 4 connected to the connecting portion 8 is arranged to extend along the cylinder axis CA toward the bicycle center direction D1. By connecting the connecting member 2 to which the hose 4 is connected to the connecting portion 16 via the intermediate member 36 and the fixing bolt 38, the cylinder hole 12A, the first flow path 34, and the second flow path are formed to allow operating oil to flow 36A, the states of the third flow path 42A, the fourth flow path 6A, the fifth flow path, and the hose 4. The connecting member 2 can be formed integrally with the intermediate member 36. Instead of the stringed connection member 2, a linear connection member that fixes the hose 4 to the cylinder housing 12 by deforming the fixing bolt 38 and the cylinder housing 12 can be used. .

As shown in Figure 1, the connecting portion 16 is provided in the first portion 22A of the second end 20 of the cylinder housing 12, and the hose 4 connected to the connecting member 2 extends along the cylinder axis CA, so the The hose 4 is arranged along the handlebar H. With this hydraulic operating device 10, since the distance between the hose 4 extending from the connecting member 2 and the handlebar H is shortened, the appearance around the handlebar H can be maintained in a good condition.

(Modifications) "The description of each of the above-mentioned embodiments is an example of the form taken by the hydraulic operating device of the present invention, and is not intended to limit the form. In addition to the embodiment, the hydraulic operating device of the present invention may take, for example, a combination of at least two modified examples of the above-described embodiments and at least two modified examples that are not inconsistent with each other as shown below.

The relationship between the connecting axis CS and the cylinder axis CA can be changed arbitrarily. In the first example, the connection axis CS is non-orthogonal to the cylinder axis CA. In the second example, the connecting axis CS is non-orthogonal to the cylinder axis CA, and is orthogonal to the cylinder axis CA on the projection plane. In the third example, the connecting axis CS is non-orthogonal to the cylinder axis CA, and is non-orthogonal to the cylinder axis CA on the projection plane.

The distance D between the second end 20 and the gripping axis SA of the handlebar rod can be changed arbitrarily. In one example, the distance D is greater than 40 mm.　　The structure of the second end 20 can be changed arbitrarily. In one example, the second end portion 20 does not include the protruding portion 20A. With this example, the cylinder housing 12, in order to make the second end 20 closer to the handlebar clamping axis SA than the first end 18 in the installed state, the cylinder axis CA is clamped with respect to the handlebar rod Hold the axis SA tilted.

The relationship between the first end 18 and the second end 20 can be arbitrarily changed. In the first example, the distance D between the second end 20 and the handlebar clamping axis SA is substantially the same as the distance between the first end 18 and the handlebar clamping axis SA. In the second example, the second end 20 is farther from the handlebar clamping axis SA than the first end 18 in the mounted state. The second end portion 20 may take a form in which the protruding portion 20A is not included.

The arrangement of the connecting portion 16 can be changed arbitrarily. In the first example, the connecting portion 16 is provided in the portion between the first end portion 18 and the second end portion 20 of the cylinder housing 12. In the second example, the connecting portion 16 is provided in the third portion 22C on the outer peripheral surface 22 of the cylinder housing 12. In the third example, the connecting portion 16 is provided in the fourth portion 22D on the outer peripheral surface 22 of the cylinder housing 12. In the fourth example, the connecting portion 16 is provided on the end surface of the cylinder housing 12 on the second end portion 20 side. In the second example to the fourth example, the connecting portion 16 may be provided outside of between the cylinder axis CA and the handlebar clamping axis SA.

The arrangement of the mounting part 14 can be changed arbitrarily. In the first example, the mounting portion 14 is provided in the portion between the first end portion 18 and the second end portion 20 of the cylinder housing 12. In the second example, the mounting portion 14 is provided on the end surface of the cylinder housing 12 on the first end portion 18 side.

The relationship between the cylinder axis CA and the handlebar gripping axis SA can be changed arbitrarily. In one example, the cylinder housing 12 allows the cylinder axis CA to cross the handlebar clamping axis SA on the projection surface.

2‧‧‧Connecting member 4‧‧‧Hose 10‧‧‧Hydraulic operating device 12‧‧‧Cylinder block 12A‧‧‧Cylinder block hole 14‧‧‧Mounting part 14A‧‧‧Clamp 16‧‧ ‧Connecting part 18‧‧‧First end 20‧‧‧Second end 22‧‧‧Outer peripheral surface 22A‧‧‧First part 22B‧‧‧Second part 24‧‧‧Oil tank 26‧‧‧Operating shaft 28‧‧‧Lever 30‧‧‧Piston 32‧‧‧Connecting hole CA‧‧‧Cylinder axis CS‧‧‧Connecting axis D‧‧‧Distance H‧‧‧Handlebar lever SA‧‧‧Handlebar lever Clamping axis

Fig. 1 is a plan view showing a brake system including the hydraulic operating device of the embodiment and its surroundings.　　 Figure 2 is a side view of the brake system of Figure 1.　　 Figure 3 is a cross-sectional view showing the inside of the cylinder housing and the oil tank of Figure 1.　　 Fig. 4 is an exploded perspective view showing a state where the brake system of Fig. 1 is partially exploded.

1‧‧‧Brake system

2‧‧‧Connecting member

4‧‧‧Hose

10‧‧‧Hydraulic operating device

12‧‧‧Cylinder shell

14‧‧‧Installation Department

14A‧‧‧Clip

16‧‧‧Connecting part

18‧‧‧1st end

20‧‧‧Second end

20A‧‧‧Protrusion

22‧‧‧Outer peripheral surface

22A‧‧‧Part 1

22B‧‧‧Part 2

22C‧‧‧Part 3

24‧‧‧ Fuel tank

26‧‧‧Operation axis

28‧‧‧Leverage

CA‧‧‧Cylinder axis

H‧‧‧Handlebar

PA‧‧‧Swing axis

SA‧‧‧Handlebar rod clamping axis

Claims (10)

A hydraulic operation device is a hydraulic operation device for a small vehicle including a bicycle. The attaching part of the handlebar rod, the connecting part that can connect the connecting member for connecting the hose and is provided on the outer peripheral surface of the cylinder housing, the piston provided so as to be movable in the cylinder hole, and the connecting part of the cylinder The housing is provided with a lever for moving the piston to swing around an operating shaft, and an oil tank that stores operating oil and can supply operating oil to the cylinder bore; the operating shaft is provided in the first of the cylinder housing The end portion, the connecting portion, is provided on the second end portion of the cylinder housing opposite to the first end in the direction along the cylinder axis; the lever is provided on the cylinder housing , And can swing centered on the swing axis defined by the operating shaft; when viewed from a direction parallel to the swing axis, the oil tank is set to at least partially overlap the cylinder hole, and the mounting portion is used to clamp Holds the handlebar rod, and includes a clamping member used to define the gripping axis of the handlebar rod in the installed state of clamping the handlebar rod; the fuel tank extends along the fuel tank axis; the fuel tank is configured to allow the fuel tank shaft The heart is relative to the above handlebar The clamping axis is non-orthogonal; the cylinder bore is arranged so that the cylinder axis is non-orthogonal to the handlebar clamping axis, and the outer peripheral surface of the cylinder housing has: facing the vehicle The first part of the rod and the second part on the opposite side to the first part; the connecting portion is provided on the outer peripheral surface of the cylinder housing outside the second part. A hydraulic operation device is a hydraulic operation device for a small vehicle including a bicycle. The attaching part of the handlebar rod, the connecting part that can connect the connecting member for connecting the hose and is provided in the cylinder housing, the piston provided so as to be movable in the cylinder bore, and the connecting part provided in the cylinder housing A lever used to move the piston to swing around an operating shaft, and an oil tank that stores operating oil and can supply operating oil to the cylinder bore; the operating shaft is provided at the first end of the cylinder housing, The connecting portion is provided at the second end of the cylinder housing on the opposite side to the first end in the direction along the axis of the cylinder; the lever is provided on the cylinder housing and can Swing centered on the swing axis defined by the above-mentioned operating axis; When viewed from a direction parallel to the swing axis, the fuel tank is provided to at least partially overlap the cylinder hole, and the mounting portion is used to clamp the handlebar rod and is included in the mounting of the handlebar rod. The state is a clamp used to define the gripping axis of the handlebar rod; the fuel tank extends along the axis of the fuel tank; the fuel tank is configured such that the axis of the fuel tank is non-orthogonal with respect to the gripping axis of the handlebar rod; the cylinder The body hole is arranged so that the cylinder axis is non-orthogonal to the handlebar clamping axis, and the cylinder housing has: a first end that is closer to the first end than the first end in the mounted state The second end of the handlebar clamping axis; the second end is arranged such that the distance from the handlebar clamping axis in the mounted state is 40 mm or less. For example, the hydraulic operating device of the second patent application, wherein the connecting portion is provided on the outer peripheral surface of the cylinder housing. For example, the hydraulic operating device of claim 3, wherein the outer peripheral surface of the cylinder housing has: a first portion facing the handlebar rod, and a second portion opposite to the first portion ; The connecting portion is provided on the outer peripheral surface of the cylinder housing outside the second portion. Such as the hydraulic operating device of any one of items 1 to 4 in the scope of patent application, Wherein, in the cylinder housing, the axis of the cylinder of the cylinder hole is clamped along the axis of the handlebar of the clamp. For example, the hydraulic operating device according to any one of items 1 to 4 in the scope of the patent application, wherein the connecting portion is provided between the cylinder axis and the handlebar clamping axis. The hydraulic operating device according to the first or fourth patent application, wherein the connecting portion is provided in the first portion on the outer peripheral surface of the cylinder housing. The hydraulic operating device according to the first patent application, wherein the mounting portion is provided at the first end portion of the cylinder housing. For example, the hydraulic operating device according to any one of items 1 to 4 in the scope of patent application, wherein the connecting portion includes a connecting hole for connecting the connecting member. For example, the hydraulic operating device of the ninth patent application, wherein the connecting hole defines a connecting shaft center, and the connecting shaft center is orthogonal to the cylinder shaft center.

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