Brake hydraulic control device and saddle-riding type vehicle

Abstract

The present invention obtains a brake hydraulic pressure control apparatus that is mounted to a straddle-type vehicle and can improve an anti-vibration property when compared to the related art. The brake hydraulic pressure control apparatus according to the present invention includes : a base body formed with a channel for a brake fluid; a control board of a hydraulic pressure control mechanism for the brake fluid provided to the channel; a housing accommodating the control board and connected to the base body; and a connector provided to the housing and electrically connected to the control board, and is mounted to the straddle-type vehicle. The brake hydraulic pressure control apparatus includes a holding section that holds a cable connected to the connector.

Description

Technical Field

[0001] The present invention relates to a brake hydraulic control device for a saddle-type vehicle, and a saddle-type vehicle equipped with the brake hydraulic control device.

Background Art

[0002] Some conventional vehicles are equipped with a brake hydraulic control device for performing an anti-lock brake operation on the brake system. This brake hydraulic control device adjusts the braking force generated on the wheels by increasing or decreasing the pressure of the brake fluid in the brake fluid circuit while the user of the vehicle is operating an input unit such as a brake lever. Among such brake hydraulic control devices, there is one in which a flow path forming part of the brake fluid circuit and a control board for controlling the flow of the brake fluid in the brake fluid circuit are unitized (see, for example, Patent Document 1).

[0003] Specifically, the unitized brake hydraulic control device includes a base body in which a flow path for the brake fluid is formed, a control board of a hydraulic control mechanism for the brake fluid provided in the flow path for the brake fluid, a housing in which the control board is housed and connected to the base body, and a connector provided on the housing and electrically connected to the control board. Further, a cable such as a power supply cable for supplying power to the brake hydraulic control device is connected to the connector.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent years, even in a saddle-type vehicle which is a type of vehicle, a vehicle equipped with a brake hydraulic control device for performing an antilock brake operation has been proposed. Here, since the saddle-type vehicle has a shorter distance between the front and rear wheels, that is, the wheelbase, than a four-wheeled vehicle or the like, vibrations are likely to increase due to road surface irregularities and the like. For this reason, improvement in vibration resistance is desired for the brake hydraulic control device mounted on the saddle-type vehicle.

[0006] The present invention has been made against the background of the above problems, and is a brake hydraulic control device mounted on a saddle-type vehicle, and a first object is to obtain a brake hydraulic control device capable of improving vibration resistance more than before. Another object of the present invention is to obtain a saddle-type vehicle equipped with such a brake hydraulic control device.

Means for Solving the Problems

[0007] The brake hydraulic control device according to the present invention includes a base body in which a flow path for brake fluid is formed, a control board of a hydraulic control mechanism for the brake fluid provided in the flow path, a housing in which the control board is housed and which is connected to the base body, and a connector provided in the housing and electrically connected to the control board, and is a brake hydraulic control device mounted on a saddle-type vehicle, and includes a pressing portion for pressing a cable connected to the connector.

[0008] Further, the saddle-type vehicle according to the present invention includes the brake hydraulic control device according to the present invention.

Effects of the Invention

[0009] The brake hydraulic control device according to the present invention includes a pressing portion for pressing a cable connected to the connector. For this reason, in the brake hydraulic control device according to the present invention, vibrations transmitted from the saddle-type vehicle to the cable are blocked by the pressing portion, and transmission to the connector is suppressed. Therefore, the brake hydraulic control device according to the present invention improves the reliability against vibrations at the connection portion between the connector and the cable, and the vibration resistance is improved more than before.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0011] Hereinafter, a brake hydraulic control device and a saddle-riding type vehicle according to the present invention will be described with reference to the drawings.

[0012] In the following, the case where the present invention is applied to a bicycle (for example, a two-wheeler, a three-wheeler, etc.), which is an example of a saddle-riding type vehicle, will be described. However, the present invention may be applied to other saddle-riding type vehicles other than bicycles. Other saddle-riding type vehicles other than bicycles are, for example, motorcycles, three-wheeled motorcycles, and buggies that use at least one of an engine and an electric motor as a drive source. Also, a bicycle means a vehicle in general that can be propelled on the road by the pedaling force applied to the pedals. That is, bicycles include ordinary bicycles, electric assist bicycles, electric bicycles, etc. Also, a motorcycle or a three-wheeled motorcycle means a so-called motorbike, and motorbikes include motorcycles, scooters, electric scooters, etc.

[0013] In addition, the configurations, operations, etc. described below are examples, and the brake hydraulic control device and the saddle-riding type vehicle according to the present invention are not limited to such configurations, operations, etc. For example, in the following, the case where the brake hydraulic control device according to the present invention is a pump-less type is described, but the brake hydraulic control device according to the present invention may be provided with a pump for assisting the flow of the brake fluid. Further, in the following, the case where the brake system provided with the brake hydraulic control device according to the present invention executes anti-lock brake control only for the braking force generated at the front wheels is described, but the brake system provided with the brake hydraulic control device according to the present invention may execute anti-lock brake control only for the braking force generated at the rear wheels, or may execute anti-lock brake control for both the braking force generated at the front wheels and the braking force generated at the rear wheels.

[0014] Also, in each figure, the same or similar members or parts are denoted by the same reference numerals, or the assignment of reference numerals is omitted. Also, the illustration of the detailed structure is appropriately simplified or omitted. Also, the overlapping descriptions are appropriately simplified or omitted.

[0015] <Mounting of a Brake System Equipped with a Brake Hydraulic Control Device on a Bicycle> The mounting of the brake system equipped with the brake hydraulic control device according to the present embodiment on a bicycle will be described. FIG. 1 is a diagram showing a schematic configuration of a bicycle on which a brake system equipped with a brake hydraulic control device according to an embodiment of the present invention is mounted. In FIG. 1, the case where the bicycle 200 is a two-wheeled vehicle is shown, but the bicycle 200 may be another bicycle such as a tricycle.

[0016] A bicycle 200, which is an example of a saddle-riding type vehicle, includes a frame 210, a turning part 230, a saddle 218, pedals 219, a rear wheel 220, and a rear wheel braking part 260.

[0017] The frame 210 includes, for example, a head tube 211 that pivotally supports the steering column 231 of the swivel section 230, a top tube 212 and a down tube 213 that are connected to the head tube 211, a seat tube 214 that is connected to the top tube 212 and the down tube 213 and holds the saddle 218, and stays 215 that are connected to the upper and lower ends of the seat tube 214 and hold the rear wheel 220 and the rear wheel braking section 260.

[0018] The swivel section 230 includes a steering column 231, a handle stem 232 held by the steering column 231, a handlebar 233 held by the handle stem 232, a braking operation section 240 attached to the handlebar 233, a front fork 216 connected to the steering column 231, a front wheel 217 rotatably held by the front fork 216, and a front wheel braking section 250. The front fork 216 is provided on both sides of the front wheel 217. One end of the front fork 216 is connected to the steering column 231, and the other end is connected to the rotation center of the front wheel 217.

[0019] The braking operation section 240 includes a mechanism used as an operation section for the front wheel braking section 250 and a mechanism used as an operation section for the rear wheel braking section 260. For example, the mechanism used as an operation section for the front wheel braking section 250 is disposed on the right end side of the handlebar 233, and the mechanism used as an operation section for the rear wheel braking section 260 is disposed on the left end side of the handlebar 233.

[0020] The bicycle 200 configured as described above is equipped with a brake hydraulic control device 1. In the present embodiment, the brake hydraulic control device 1 is attached to the front fork 216 of the turning section 230. Note that the brake hydraulic control device 1 may be directly attached to the front fork 216, or may be indirectly attached to the front fork 216 via a bracket or the like. The brake hydraulic control device 1 is a unit that controls the hydraulic pressure of the brake fluid of the front wheel braking section 250. Note that the rear wheel braking section 260 may be a type of braking section that generates a braking force by increasing the hydraulic pressure of the brake fluid, or may be a type of braking section that mechanically generates a braking force (for example, a type of braking section that generates a braking force by generating tension in a wire, etc.).

[0021] Further, the bicycle 200 is equipped with a power supply unit 270 that serves as the power supply for the brake hydraulic control device 1. The power supply unit 270 is attached to, for example, the down tube 213 of the frame 210. The power supply unit 270 may be a battery or a generator. Examples of the generator include those that generate electricity by the running of the bicycle 200 (for example, a hub dynamo that generates electricity by the rotation of the front wheel 217 or the rear wheel 220, a motor that is a drive source of the front wheel 217 or the rear wheel 220 and generates regenerative power, etc.), and those that generate electricity by sunlight.

[0022] That is, the bicycle 200 is equipped with a brake system 100 that includes at least a braking operation section 240, a front wheel braking section 250, a brake hydraulic control device 1, and a power supply unit 270. The brake system 100 can execute antilock brake control by controlling the hydraulic pressure of the brake fluid of the front wheel braking section 250 with the brake hydraulic control device 1.

[0023] <Configuration of the Brake System>

[0024] The configuration of the brake system according to the embodiment will be described. FIG. 2 is a diagram showing a schematic configuration of the brake system according to the embodiment of the present invention. The brake hydraulic control device 1 includes a base body 10. In the base body 10, a master cylinder port 11, a wheel cylinder port 12, and a flow path 13 that communicates the master cylinder port 11 and the wheel cylinder port 12 are formed.

[0025] The flow path 13 is a flow path for brake fluid. The flow path 13 includes a first flow path 14, a second flow path 15, a third flow path 16, and a fourth flow path 17. The master cylinder port 11 and the wheel cylinder port 12 communicate with each other via the first flow path 14 and the second flow path 15. Also, at an intermediate portion of the second flow path 15, an end portion on the inlet side of the third flow path 16 is connected.

[0026] A braking operation unit 240 is connected to the master cylinder port 11 via a liquid pipe 101. The braking operation unit 240 includes a brake lever 241, a master cylinder 242, and a reservoir 243. The master cylinder 242 includes a piston portion (not shown) that moves in conjunction with the operation of the user of the brake lever 241, and is connected to the inlet side of the first flow path 14 via the liquid pipe 101 and the master cylinder port 11. By the movement of the piston portion, the hydraulic pressure of the brake fluid in the first flow path 14 increases or decreases. Also, the brake fluid of the master cylinder 242 is stored in the reservoir 243.

[0027] A front wheel braking unit 250 is connected to the wheel cylinder port 12 via a liquid pipe 102. The front wheel braking unit 250 includes a wheel cylinder 251 and a rotor 252. The wheel cylinder 251 is attached to the lower end portion of the front fork 216. The wheel cylinder 251 includes a piston portion (not shown) that moves in conjunction with the hydraulic pressure of the liquid pipe 102, and is connected to the outlet side of the second flow path 15 via the liquid pipe 102 and the wheel cylinder port 12. The rotor 252 is held by the front wheel 217 and rotates together with the front wheel 217. By the movement of the piston portion, a brake pad (not shown) is pressed against the rotor 252, thereby braking the front wheel 217.

[0028] The brake hydraulic pressure control device 1 also includes a hydraulic pressure adjustment valve 20 that opens and closes the flow path 13, and a coil 70 that drives the hydraulic pressure adjustment valve 20. In the present embodiment, the brake hydraulic pressure control device 1 includes an inlet valve 21 and an outlet valve 22 as the hydraulic pressure adjustment valve 20. The inlet valve 21 is provided between the outlet side of the first flow path 14 and the inlet side of the second flow path 15, and opens and closes the flow of the brake fluid between the first flow path 14 and the second flow path 15. The outlet valve 22 is provided between the outlet side of the third flow path 16 and the inlet side of the fourth flow path 17, and opens and closes the flow of the brake fluid between the third flow path 16 and the fourth flow path 17. The hydraulic pressure of the brake fluid is controlled by the opening and closing operations of the inlet valve 21 and the outlet valve 22.

[0029] Also, in the present embodiment, the brake hydraulic pressure control device 1 includes a coil 71 that drives the inlet valve 21 and a coil 73 that drives the outlet valve 22 as the coil 70. For example, when the coil 71 is de-energized, the inlet valve 21 opens the flow of the brake fluid in both directions. When the coil 71 is energized, the inlet valve 21 closes and blocks the flow of the brake fluid. That is, in the present embodiment, the inlet valve 21 is a normally open solenoid valve. Also, for example, when the coil 73 is de-energized, the outlet valve 22 blocks the flow of the brake fluid. When the coil 73 is energized, the outlet valve 22 opens and allows the flow of the brake fluid in both directions. That is, in the present embodiment, the outlet valve 22 is a normally closed solenoid valve.

[0030] The brake hydraulic pressure control device 1 also includes an accumulator 23. The accumulator 23 is connected to the outlet side of the fourth flow path 17, and stores the brake fluid that has passed through the outlet valve 22.

[0031] The brake hydraulic pressure control device 1 also includes a hydraulic pressure sensor 103 for detecting the hydraulic pressure of the brake fluid in the wheel cylinder 251. The hydraulic pressure sensor 103 is provided in the second flow path 15 or the third flow path 16.

[0032] The brake hydraulic pressure control device 1 also includes a control unit 30. Signals from various sensors such as the hydraulic pressure sensor 103 and a wheel speed sensor (not shown) for detecting the rotational speed of the front wheel 217 are input to the control unit 30. Each part of the control unit 30 may be arranged together or may be arranged dispersedly. The control unit 30 may be configured to include, for example, a microcomputer, a microprocessor unit, etc., or may be configured to include something updatable such as firmware, or may be configured to include a program module executed according to instructions from a CPU or the like.

[0033] The control unit 30 controls the energization of the coils 71 and 73. Specifically, the control unit 30 controls the driving (opening and closing operation) of the inlet valve 21 by controlling the energization of the coil 71. Also, the control unit 30 controls the driving (opening and closing operation) of the outlet valve 22 by controlling the energization of the coil 73. That is, the control unit 30 controls the opening and closing operations of the inlet valve 21 and the outlet valve 22 to control the hydraulic pressure of the brake fluid in the wheel cylinder 251, that is, the braking force of the front wheel 217.

[0034] In addition, in the present embodiment, among the components of the control unit 30, at least the component that controls the energization of the coils 71 and 73 is configured by a control board 31 described later. That is, the control board 31 controls the driving of the inlet valve 21 and the outlet valve 22 by controlling the energization of the coils 71 and 73. Here, in the present embodiment, the components used when controlling the hydraulic pressure of the brake fluid in the flow path 13 such as the hydraulic pressure adjustment valve 20 and the coil 70 may be collectively referred to as a brake fluid hydraulic pressure control mechanism. As described above, the control board 31 controls each component constituting the brake fluid hydraulic pressure control mechanism. That is, it can also be said that the brake fluid pressure control device 1 according to the present embodiment includes the control board 31 of the brake fluid hydraulic pressure control mechanism.

[0035] For example, when the front wheel 217 is being braked by the operation of the brake lever 241 by the user, if the control unit 30 determines from the signal of a wheel speed sensor (not shown) that the front wheel 217 is locked or may be locked, it starts anti-lock brake control.

[0036] When the anti-lock brake control is started, the control unit 30 energizes the coil 71 to close the inlet valve 21, and blocks the flow of the brake fluid from the master cylinder 242 to the wheel cylinder 251, thereby suppressing the pressure increase of the brake fluid in the wheel cylinder 251. On the other hand, the control unit 30 energizes the coil 73 to open the outlet valve 22, and allows the flow of the brake fluid from the wheel cylinder 251 to the accumulator 23, thereby reducing the pressure of the brake fluid in the wheel cylinder 251. As a result, the lock of the front wheel 217 is released or avoided. When the control unit 30 determines from the signal of the hydraulic pressure sensor 103 that the brake fluid in the wheel cylinder 251 has been depressurized to a predetermined value, it de-energizes the coil 73 to close the outlet valve 22, and for a short period of time, de-energizes the coil 71 to open the inlet valve 21 to increase the pressure of the brake fluid in the wheel cylinder 251. The control unit 30 may increase and decrease the pressure of the brake fluid in the wheel cylinder 251 only once, or may repeat it a plurality of times.

[0037] When the anti-lock brake control ends and the brake lever 241 is returned, the inside of the master cylinder 242 becomes atmospheric pressure, and the brake fluid in the wheel cylinder 251 is returned. Also, when the anti-lock brake control ends and the brake lever 241 is returned, the outlet valve 22 is opened. When the pressure of the brake fluid in the flow path 13 becomes lower than the pressure of the brake fluid stored in the accumulator 23, the brake fluid stored in the accumulator 23 is discharged out of the accumulator 23 at a boostless (i.e., pumpless) pressure and returns into the flow path 13, and eventually returns to the master cylinder 242.

[0038] <Configuration of Brake Fluid Pressure Control Device> The brake fluid pressure control device 1 includes a base body 10, a hydraulic pressure adjustment valve 20, a coil 70, a control board 31, and a housing 40. Hereinafter, the configuration of the brake fluid pressure control device 1 according to the present embodiment will be described.

[0039] FIG. 3 is a cross-sectional view of a brake fluid pressure control device according to an embodiment of the present invention. The base body 10 is a metal part such as an aluminum alloy, for example. The base body 10 is, for example, substantially rectangular parallelepiped. Note that each surface of the base body 10 may be flat, may include a curved portion, or may include a step. On the surface 18 of the base body 10, coils 71 and 73 which are coils 70 are erected.

[0040] Specifically, as described above, the brake hydraulic control device 1 according to the present embodiment includes an inlet valve 21 and an outlet valve 22 as the hydraulic adjustment valve 20. On the other hand, recesses 24 and 25 are formed in the base body 10. In the recess 24, the outlet side of the first flow path 14 communicates with the inlet side of the second flow path 15, and the inlet valve 21 is movably provided. Then, when the inlet valve 21 moves within the recess 24, the flow of the brake fluid between the first flow path 14 and the second flow path 15 is opened and closed. Further, in the recess 25, the outlet side of the third flow path 16 communicates with the inlet side of the fourth flow path 17, and the outlet valve 22 is movably provided. Then, when the outlet valve 22 moves within the recess 25, the flow of the brake fluid between the third flow path 16 and the fourth flow path 17 is opened and closed.

[0041] In a state where the inlet valve 21 is provided in the recess 24, a part of the inlet valve 21 protrudes from the surface 18 of the base body 10 to the outside. The coil 71 that drives the inlet valve 21 is erected on the surface 18 of the base body 10 so as to surround the protruding portion of the inlet valve 21. Similarly, in a state where the outlet valve 22 is provided in the recess 25, a part of the outlet valve 22 protrudes from the surface 18 of the base body 10 to the outside. The coil 73 that drives the outlet valve 22 is erected on the surface 18 of the base body 10 so as to surround the protruding portion of the outlet valve 22.

[0042] The control board 31 that controls the energization of the coils 71 and 73 is electrically connected to the coils 71 and 73. In the present embodiment, the control board 31 is electrically connected to the coil 71 via the connection terminal 72 and is electrically connected to the coil 73 via the connection terminal 74.

[0043] The housing 40 is made of resin, for example, and is connected to the base body 10. The housing 40 houses the coil 70 and the control board 31. In the present embodiment, the housing 40 is connected to the surface 18 of the base body 10. Further, as described above, the brake hydraulic control device 1 according to the present embodiment includes the hydraulic sensor 103. In the present embodiment, the hydraulic sensor 103 is also housed in the housing 40.

[0044] Further, the housing 40 according to the present embodiment is provided with a connector 50 that is electrically connected to the control board 31. In the present embodiment, the connector 50 is electrically connected to the control board 31 via the connection terminal 51. A cable 280 is connected to this connector 50. The cable 280 is, for example, a power supply cable connected to the power unit 270. In this case, power is supplied to the control board 31 via the cable 280. Further, for example, the cable 280 is a signal cable connected to a sensor such as a wheel speed sensor. In this case, the detection signal of the sensor is input to the control board 31 via the cable 280.

[0045] Note that only one connector 50 is shown in FIG. 3, but the number of connectors 50 included in the brake hydraulic control device 1 is not limited to one. In other words, only one cable 280 is connected to the brake hydraulic control device 1 in FIG. 3, but the number of cables 280 connected to the brake hydraulic control device 1 is not limited to one. The brake hydraulic control device 1 may include a plurality of connectors 50. In other words, a plurality of cables 280 may be connected to the brake hydraulic control device 1.

[0046] Furthermore, the brake hydraulic control device 1 according to the present embodiment includes a pressing portion 65 that presses the middle portion of the cable 280. In FIG. 3, only one cable 280 is pressed by the pressing portion 65, but a plurality of cables 280 may be pressed by the pressing portion 65. Also, the step of pressing the cable 280 by the pressing portion 65 may be before or after connecting the cable 280 and the connector 50.

[0047] Saddle - type vehicles such as bicycles 200 have a shorter distance between the front and rear wheels, that is, a shorter wheelbase, compared to automobiles and the like, so vibrations are likely to increase due to road surface irregularities and the like. For this reason, it is desired to improve the vibration resistance of the brake hydraulic control device mounted on the saddle - type vehicle. Therefore, the brake hydraulic control device 1 according to the present embodiment includes the above - described pressing portion 65. In the brake hydraulic control device 1 according to the present embodiment provided with the pressing portion 65, vibrations transmitted from the bicycle 200 to the cable 280 are blocked by the pressing portion 65, and transmission to the connector 50 is suppressed. Therefore, the brake hydraulic control device 1 according to the present embodiment improves the reliability against vibrations at the connection portion between the connector 50 and the cable 280, and the vibration resistance is improved compared to the prior art.

[0048] In particular, in the present embodiment, the brake hydraulic control device 1 is attached to the front fork 216. The front fork 216 directly receives vibrations from the road surface. For this reason, it is particularly suitable to use the brake hydraulic control device 1 according to the present embodiment as the brake hydraulic control device attached to the front fork 216.

[0049] Here, the brake hydraulic control device 1 according to the present embodiment includes a connector cover 60 that protects the connector 50. Specifically, the connector cover 60 includes a cover portion 61 that covers the connector 50. And the pressing portion 65 is integrally formed with the connector cover 60. In other words, a part of the connector cover 60 serves as the pressing portion 65. By configuring the pressing portion 65 in this way, the number of parts of the brake hydraulic control device 1 can be reduced, and the cost of the brake hydraulic control device 1 can be reduced. Also, by configuring the pressing portion 65 in this way, when attaching the connector cover 60, the cable 280 can be pressed by the pressing portion 65. Therefore, by configuring the pressing portion 65 in this way, the man-hours for assembling the brake hydraulic control device 1 can also be reduced. Of course, the connector cover 60 and the pressing portion 65 may be configured as separate parts.

[0050] Also, in the present embodiment, the cable 280 is configured to be pressed by the base body 10 and the pressing portion 65. That is, in the present embodiment, the cable 280 is sandwiched between the base body 10 and the pressing portion 65. Note that the cable 280 may be pressed by the housing 40 and the pressing portion 65. However, by configuring the cable 280 to be pressed by the base body 10 and the pressing portion 65, the following effects can be obtained.

[0051] Since the base body 10 has the brake fluid flow path 13 formed therein, it has higher rigidity than the housing 40. Therefore, when the brake fluid pressure control device 1 is attached to the bicycle 200, the base body 10 is attached to the bicycle 200. Thus, when the cable 280 is held by the housing 40 and the pressing portion 65, when some force acts on the cable 280, this force also acts on the housing 40, and a load is applied to the connection portion between the base body 10 and the housing 40. For this reason, when the cable 280 is held by the housing 40 and the pressing portion 65, it may be feared that the sealing performance of the connection portion between the base body 10 and the housing 40 will deteriorate when some force acts on the cable 280. However, when the cable 280 is held by the base body 10 and the pressing portion 65, no load is applied to the connection portion between the base body 10 and the housing 40 even when some force acts on the cable 280. For this reason, when the cable 280 is held by the base body 10 and the pressing portion 65, a decrease in the sealing performance of the connection portion between the base body 10 and the housing 40 can be suppressed.

[0052] Figs. 4 to 6 are perspective views showing the periphery of the connector of the brake fluid pressure control device according to the embodiment of the present invention. Further, Fig. 7 is a cross-sectional view showing the periphery of the connector of the brake fluid pressure control device according to the embodiment of the present invention. Note that Fig. 4 shows a state where the cable 280 is not connected to the connector 50. Fig. 5 shows a state where the cable 280 is connected to the connector 50 and the cable 280 is not held by the pressing portion 65. Further, Figs. 6 and 7 show a state where the cable 280 is connected to the connector 50 and the cable 280 is held by the pressing portion 65. Hereinafter, with reference to these Figs. 4 to 7, a suitable detailed configuration around the pressing portion 65 will be described.

[0053] In the case of a configuration in which the cable 280 is held by the base body 10 and the pressing portion 65, it is preferable that a first groove 80 into which the middle portion of the cable 280 fits is formed in the base body 10. And it is preferable that the pressing portion 65 is configured to press the portion of the cable 280 disposed in the first groove 80. Further, in the case of a configuration in which the cable 280 is held by the housing 40 and the pressing portion 65, it is preferable that a first groove 80 into which the middle portion of the cable 280 fits is formed in the housing 40. And it is preferable that the pressing portion 65 is configured to press the portion of the cable 280 disposed in the first groove 80.

[0054] By forming the first groove 80 in this way, the middle portion of the cable 280 can be fitted into the first groove 80, thereby temporarily holding the cable 280. As a result, during the operation of pressing the cable 280 with the pressing portion 65, the operator does not need to hold the cable 280 with one hand. Therefore, the formation of the first groove 80 facilitates the operation of pressing the cable 280 with the pressing portion 65.

[0055] In addition, in order to temporarily hold the cable 280 with the first groove 80, the width of the first groove 80 needs to be thinner than the outer diameter of the cable 280 and dimensioned such that the cable 280 can be fitted. At this time, there are dimensional errors in the individual cables 280. There are also machining errors in the first groove 80. Therefore, in order to temporarily hold the cable 280 with the first groove 80, it is necessary to set the width of the first groove 80 to the above-mentioned width while considering the dimensional error of the cable 280 and the machining error of the first groove 80. Therefore, the first groove 80 is preferably formed in a component made of a material that is easy to machine with high precision. For this reason, when the base body 10 is made of metal, the first groove 80 is preferably formed in the base body 10.

[0056] Further, when the first groove 80 is formed in the base body 10 or the housing 40, it is preferable that the pressing portion 65 is formed with a second groove 66 into which an intermediate portion of the cable 280 is inserted at a position facing the first groove 80. Thereby, compared with the case where the second groove 66 is not formed in the pressing portion 65, the depth of the first groove 80 can be made shallower, and the component in which the first groove 80 is formed can be miniaturized. Therefore, since the second groove 66 is formed in the pressing portion 65, the brake hydraulic control device 1 can be miniaturized compared with the case where the second groove 66 is not formed in the pressing portion 65.

[0057] Further, it is preferable that chamfers 82 are provided on at least a range of the outer periphery of the first groove 80 that does not face the pressing portion 65. The cable 280 routed to the vicinity of the brake hydraulic control device 1 on the bicycle 200 is bent and fitted into the first groove 80. At this time, the cable 280 is bent in a range that does not face the pressing portion 65, that is, in a range that cannot be pressed by the pressing portion 65. Therefore, the range of the outer periphery of the first groove 80 that does not face the pressing portion 65 is likely to come into contact with the cable 280. For this reason, since the chamfers 82 are provided on the outer peripheral portion of the first groove 80 as described above, even if the cable 280 comes into contact with the outer periphery of the first groove 80, the cable 280 will come into contact with the chamfers 82. Therefore, since the chamfers 82 are provided on the outer peripheral portion of the first groove 80 as described above, damage to the outer peripheral portion of the cable 280 can be suppressed.

[0058] Also, when the first groove 80 is formed in the base body 10, the distal end portion 81, which is the end portion of the first groove 80 on the side far from the connector 50, is preferably arranged at the following position. In the base body 10, the surface that presses the cable 280 together with the pressing portion 65 is defined as the pressing surface 19. In this case, the first groove 80 is formed in the pressing surface 19. At this time, it is preferable that the distal end portion 81 is arranged on the pressing surface 19 and does not communicate with the surface continuous with the pressing surface 19 in the base body 10. That is, it is preferable that the distal end portion 81 does not communicate with a surface other than the pressing surface 19. As described above, the cable 280 fitted in the first groove 80 is bent within a range not facing the pressing portion 65, that is, within a range not pressed by the pressing portion 65. At this time, by arranging the distal end portion 81 on the pressing surface 19, when the cable 280 is fitted into the first groove 80, the cable 280 is automatically bent at the distal end portion 81. Therefore, by arranging the distal end portion 81 on the pressing surface 19, the work of attaching the brake hydraulic control device 1 to the bicycle 200 becomes easy.

[0059] Further, when a part of the connector cover 60 serves as the pressing portion 65, the connector cover 60 preferably includes a hook 62 that catches on the housing 40. And the connector cover 60 is preferably configured to be screwed and fixed to the housing 40 or the base body 10 in a state where the hook 62 is caught on the housing 40. Such a fixing configuration of the connector cover 60 can be realized, for example, as follows.

[0060] Specifically, as shown in FIG. 7, the housing 40 is provided with at least one hook 62 at an end opposite to, for example, the pressing portion 65. In the examples shown in FIGS. 4 to 7, the housing 40 is provided with two hooks 62. Further, the housing 40 is formed with as many recesses 41 into which the hooks 62 are inserted as the number of the hooks 62. That is, the hook 62 inserted into the recess 41 is caught by the edge of the recess 41. Also, for example, at least one female screw 91 is formed in the housing 40 or the base 10. In the examples shown in FIGS. 4 to 7, one female screw 91 is formed on the pressing surface 19 of the base 10. And a through hole 67 is formed at a position of the connector cover 60 facing the female screw 91. In the examples shown in FIGS. 4 to 7, the through hole 67 is formed in the pressing portion 65. By configuring in this way, with the hook 62 hooked on the edge of the recess 41, the male screw 92 inserted into the through hole 67 is screwed into the female screw 91, and thus the connector cover 60 can be fixed to the base 10 by screwing.

[0061] By adopting such a fixing configuration for the connector cover 60, the number of screwing operations for fixing the connector cover 60 can be reduced, and the fixing of the connector cover 60 becomes easy. Also, by adopting such a fixing configuration for the connector cover 60, when the connector cover 60 is fixed by screwing, with the hook 62 as a fulcrum, the load acting on the connector cover 60 during screwing can be applied to the cable 280. Therefore, by adopting such a fixing configuration for the connector cover 60, the cable 280 can be held more reliably.

[0062] <Effect of Brake Hydraulic Control Device> The effect of the brake hydraulic control device according to the embodiment will be described.

[0063] The brake hydraulic control device 1 according to the present embodiment is a brake hydraulic control device mounted on a bicycle 200. The brake hydraulic control device 1 includes a base body 10, a control board 31, a housing 40, and a connector 50. The base body 10 has a flow path 13 for brake fluid formed therein. The control board 31 is a control board of a brake fluid hydraulic control mechanism provided in the flow path 13. The housing 40 houses the control board 31 and is connected to the base body 10. The connector 50 is provided on the housing 40 and is electrically connected to the control board 31. And the brake hydraulic control device 1 includes a pressing portion 65 that presses a cable 280 connected to the connector 50.

[0064] In saddle-riding type vehicles such as the bicycle 200, the distance between the front and rear wheels, that is, the wheelbase, is shorter than that of automobiles and the like, so vibrations are likely to increase due to road surface irregularities and the like. For this reason, it is desired to improve the vibration resistance of the brake hydraulic control device mounted on the saddle-riding type vehicle. In the brake hydraulic control device 1 according to the present embodiment, the vibration transmitted from the bicycle 200 to the cable 280 is blocked by the pressing portion 65, and the transmission to the connector 50 is suppressed. Therefore, the brake hydraulic control device 1 according to the present embodiment has improved reliability against vibration at the connection portion between the connector 50 and the cable 280, and the vibration resistance is improved compared to the conventional one.

[0065] As described above, the brake hydraulic control device 1 according to the present embodiment has been described. However, the brake hydraulic control device according to the present invention is not limited to the description of the present embodiment, and only a part of the configurations described in the present embodiment may be appropriately combined and implemented.

Description of Reference Numerals

[0066] 1 Brake hydraulic control device, 10 Base body, 11 Master cylinder port, 12 Wheel cylinder port, 13 Flow path, 14 First flow path, 15 Second flow path, 16 Third flow path, 17 Fourth flow path, 18 Surface, 19 Pressing surface, 20 Hydraulic adjustment valve, 21 Inlet valve, 22 Outlet valve, 23 Accumulator, 24 Recess, 25 Recess, 30 Control unit, 31 Control board, 40 Housing, 41 Recess, 50 Connector, 51 Connection terminal, 60 Connector cover, 61 Cover part, 62 Hook, 65 Pressing part, 66 Second groove, 67 Through hole, 70 Coil, 71 Coil, 72 Connection terminal, 73 Coil, 74 Connection terminal, 80 First groove, 81 Distant side end, 82 Chamfer, 91 Female screw, 92 Male screw, 100 Brake system, 101 Liquid pipe, 102 Liquid pipe, 103 Hydraulic sensor, 200 Bicycle, 210 Frame, 211 Head tube, 212 Top tube, 213 Down tube, 214 Seat tube, 215 Stay, 216 Front fork, 217 Front wheel, 218 Saddle, 219 Pedal, 220 Rear wheel, 230 Swivel part, 231 Steering column, 232 Handle stem, 233 Handlebar, 240 Braking operation part, 241 Brake lever, 242 Master cylinder, 243 Reservoir, 250 Front wheel braking part, 251 Wheel cylinder, 252 Rotor, 260 Rear wheel braking part, 270 Power supply unit, 280 Cable.

Claims

1. A base body (10) in which a brake fluid passage (13) is formed, a control board (31) of a hydraulic control mechanism of the brake fluid provided in the passage (13), a housing (40) in which the control board (31) is housed and which is connected to the base body (10), a connector (50) provided on the housing (40) and electrically connected to the control board (31), comprising: A brake fluid hydraulic control device (1) mounted on a saddle-type vehicle, comprising a pressing portion (65) for pressing a cable (280) connected to the connector (50), comprising a connector cover (60) having a cover portion (61) for covering the connector (50), wherein a part of the connector cover (60) serves as the pressing portion (65). Brake fluid hydraulic control device (1).

2. The connector cover (60) comprises a hook (62) that engages with the housing (40), and is configured to be screwed and fixed to the housing (40) or the base body (10) in a state where the hook (62) is engaged with the housing (40). The brake fluid hydraulic control device (1) according to Claim 1.

3. The cable (280) is configured to be pressed by the base body (10) and the pressing portion (65). The brake fluid hydraulic control device (1) according to Claim 1.

4. The base body (10) is made of metal, a first groove (80) into which an intermediate portion of the cable (280) fits is formed in the base body (10), and the pressing portion (65) is configured to press a portion of the cable (280) disposed in the first groove (80). The brake fluid hydraulic control device (1) according to Claim 3.

5. In the base body (10), a surface that presses the cable (280) together with the pressing portion (65) is defined as a pressing surface (19), when an end portion of the first groove (80) on the side far from the connector (50) is defined as a distal end portion (81), the first groove (80) is formed in the pressing surface (19), and the distal end portion (81) is disposed on the pressing surface (19) and does not communicate with a surface of the base body (10) that is continuous with the pressing surface (19). The brake fluid hydraulic control device (1) according to Claim 4.

6. A chamfer (82) is provided on the outer periphery of the first groove (80) at least in a range not facing the pressing portion (65). The brake fluid hydraulic control device (1) according to Claim 4.

7. The housing (40) is formed with a first groove (80) into which an intermediate portion of the cable (280) is fitted. The pressing portion (65) is configured to press a portion of the cable (280) disposed in the first groove (80). The brake hydraulic control device (1) according to claim 1.

8. The pressing portion (65) is formed with a second groove (66) into which an intermediate portion of the cable (280) is inserted at a location facing the first groove (80). The brake hydraulic control device (1) according to claim 4.

9. Mounted on the front fork (216) of the saddle-type vehicle The brake hydraulic control device (1) according to any one of claims 1 to 8.

10. The saddle-type vehicle is a motorcycle. The brake hydraulic control device (1) according to any one of claims 1 to 8.

11. The saddle-type vehicle is a bicycle (200). The brake hydraulic control device (1) according to any one of claims 1 to 8.

12. A saddle-type vehicle comprising the brake hydraulic control device (1) according to any one of claims 1 to 8. Saddle-type vehicle.

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