Hydraulic control unit, saddle-riding type vehicle, and hydraulic control unit manufacturing method

The hydraulic control unit for saddle-ride vehicles addresses adhesive-related sealing issues by using a gap forming portion to maintain sealing integrity during assembly, ensuring reliable adhesive application and preventing air bubbles.

JP2025152352APending Publication Date: 2025-10-09ROBERT BOSCH GMBH
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2024054203
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-28
Publication Date
2025-10-09

AI Technical Summary

Technical Problem

Conventional hydraulic control units for saddle-ride type vehicles face issues with adhesive sealing performance due to adhesive stretching and air bubble formation during assembly, leading to reduced sealing effectiveness between the base and housing.

Method used

Incorporation of a gap forming portion on one component to create a gap between bonding points before fixation, preventing adhesive from adhering to the other component during assembly, thereby maintaining sealing integrity.

Benefits of technology

Prevents adhesive from contacting unintended surfaces, ensuring consistent sealing performance and preventing air bubble formation, thus enhancing the assembly reliability of hydraulic control units.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025152352000001_ABST
    Figure 2025152352000001_ABST
Patent Text Reader

Abstract

To provide a hydraulic control unit for saddle-riding type vehicle that can suppress reduction in sealability between a base body and a housing.SOLUTION: A hydraulic control unit comprises: a base body in which a brake fluid flow channel is formed; and a housing which accommodates a control board that controls a hydraulic adjustment valve for opening / closing the flow channel and is bonded to the base body with an adhesive. When one of the base body and the housing is a first component and the other is a second component, a bonding area of the first component to the second component is a first bonding area, and a bonding area of the second component to the first component is a second bonding area, the first component includes an interval formation part, which forms an interval between the first bonding area and the second bonding area, in the state before the first component and the second component are fixed.SELECTED DRAWING: Figure 3
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present invention relates to a hydraulic control unit mounted on a saddle-ride type vehicle, a saddle-ride type vehicle including the hydraulic control unit, and a method for manufacturing the hydraulic control unit. [Background technology]

[0002] Some conventional vehicles are equipped with a hydraulic control unit that controls the hydraulic pressure of the brake fluid in a hydraulic circuit filled with brake fluid. The hydraulic control unit, for example, controls the braking force applied to the wheels by increasing or decreasing the hydraulic pressure of the brake fluid in the hydraulic circuit.

[0003] A hydraulic control unit includes, for example, a base body in which a brake fluid flow path is formed, and a housing that houses a control board that controls a hydraulic pressure regulating valve that opens and closes the flow path. Airtightness must be ensured between the base body and the housing. For this reason, some hydraulic control units installed in vehicles such as four-wheeled automobiles have a configuration in which the base body and the housing are sealed with an O-ring. On the other hand, straddle-type vehicles, which are also a type of vehicle, have less freedom in component layout and less freedom in installing a hydraulic control unit compared to vehicles such as four-wheeled automobiles. Therefore, miniaturization of hydraulic control units installed in straddle-type vehicles is desirable. Therefore, some conventional hydraulic control units for straddle-type vehicles have a configuration in which the base body and the housing are bonded together with an adhesive (e.g., a silicone adhesive) and the adhesive seals the gap between the base body and the housing (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7303883 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventionally, the assembly process for a hydraulic control unit for a saddle-ride type vehicle includes, for example, a positioning operation and a fixing operation for a base and a housing. In the positioning operation, an adhesive is applied to the base, and then the base and the housing are positioned while a gap is formed between them by manual work or the like. In the fixing operation after the positioning operation, the base and the housing are pressed together to adhere the adhesive on the base to the housing, and the base and the housing are then fixed with screws.

[0006] In a hydraulic control unit for a saddle-ride type vehicle, for example, during a positioning operation or between the positioning operation and a fixing operation, vibrations acting on the base and the housing may cause at least a portion of the housing to come into contact with the adhesive on the base. For example, if the adhesive is once attached to the housing and then the base and the housing are separated, the adhesive attached to the housing may stretch, causing air bubbles to form in the adhesive, which may form holes in the adhesive that connect the inside and outside of the hydraulic control unit. This may result in a deterioration in the seal between the base and the housing in a hydraulic control unit for a saddle-ride type vehicle.

[0007] The present invention has been made in light of the above-mentioned problems, and has as its first object to provide a hydraulic control unit for a saddle-ride type vehicle that can prevent deterioration of the sealing performance between the base body and the housing. A second object of the present invention is to provide a saddle-ride type vehicle equipped with such a hydraulic control unit. A third object of the present invention is to provide a method for manufacturing such a hydraulic control unit. [Means for solving the problem]

[0008] The hydraulic control unit of the present invention is a hydraulic control unit that is mounted on a saddle-type vehicle and controls the hydraulic pressure of brake fluid, and comprises a base in which a flow path for brake fluid is formed, and a housing that houses a control board that controls a hydraulic pressure regulating valve that opens and closes the flow path and is adhered to the base with an adhesive, and when one of the base and the housing is a first part and the other part is a second part, and the adhesion point of the first part to the second part is a first adhesion point, and the adhesion point of the second part to the first part is a second adhesion point, the first part has a gap forming portion that forms a gap between the first adhesion point and the second adhesion point before the first part and the second part are fixed.

[0009] A straddle-type vehicle according to the present invention includes a hydraulic pressure control unit according to the present invention.

[0010] The manufacturing method of the hydraulic control unit of the present invention is a manufacturing method of a hydraulic control unit that is mounted on a saddle-ride type vehicle and controls the hydraulic pressure of brake fluid, the hydraulic control unit comprising: a base in which a flow path for brake fluid is formed; and a housing that houses a control board that controls a hydraulic pressure regulating valve that opens and closes the flow path and is bonded to the base with an adhesive, wherein one of the base and the housing is a first component and the other component is a second component, the bonding point of the first component to the second component is a first bonding point, and the bonding point of the second component to the first component is a second bonding point, and the first component has a spacing forming portion that forms a gap between the first bonding point and the second bonding point before the first component and the second component are fixed, and the manufacturing method comprises an application step in which the adhesive is applied to the first component or the second component; a spacing forming step in which the spacing forming portion is abutted against the second component to form a gap between the first bonding point and the second bonding point; and a fixing step in which the first component and the second component are fixed. [Effects of the Invention]

[0011] In the hydraulic control unit according to the present invention, the first component is configured to include a gap forming portion, and therefore, before the first component and the second component are fixed together, the gap forming portion forms a gap between the first component and the second component, thereby preventing adhesive applied to one of the first component and the second component from adhering to the other of the first component and the second component, thereby preventing a deterioration in the sealing performance between the base and the housing. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a diagram showing the configuration of a straddle-type vehicle equipped with a brake system including a hydraulic pressure control unit according to an embodiment of the present invention; [Figure 2] 1 is a diagram showing a configuration of a brake system including a hydraulic pressure control unit according to an embodiment of the present invention; [Figure 3] 1 is a partial cross-sectional side view of a hydraulic control unit according to an embodiment of the present invention, showing a state before a base body and a housing are fixed together. FIG. [Figure 4] 1 is a partial cross-sectional side view of a hydraulic control unit according to an embodiment of the present invention, showing a state before a base body and a housing are fixed together. FIG. [Figure 5] 1 is a partial cross-sectional side view of a hydraulic control unit according to an embodiment of the present invention, showing a state in which a base body and a housing are fixed together. FIG. [Figure 6] 1 is a diagram showing a base body of a hydraulic control unit according to an embodiment of the present invention and components provided on the base body. [Figure 7] 3 is a flowchart illustrating a method for manufacturing a hydraulic control unit according to an embodiment of the present invention. [Figure 8] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state in which the base body and the housing are fixed together. [Figure 9] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state before the base body and the housing are fixed together. [Figure 10] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state before the base body and the housing are fixed together. [Figure 11] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state before the base body and the housing are fixed together. [Figure 12] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state before the base body and the housing are fixed together. [Figure 13] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state before the base body and the housing are fixed together. [Figure 14] FIG. 10 is a partial cross-sectional side view of a modified example of the hydraulic control unit according to the embodiment of the present invention, showing a state before the base body and the housing are fixed together. DETAILED DESCRIPTION OF THE INVENTION

[0013] An example of a hydraulic pressure control unit and a straddle-type vehicle according to the present invention will be described below with reference to the drawings.

[0014] While the following description will be given of the present invention as applied to a motorcycle, the present invention may also be applied to saddle-riding vehicles other than motorcycles. Examples of saddle-riding vehicles other than motorcycles include three-wheeled motor vehicles and buggies that use at least one of an engine and an electric motor as a drive source. Examples of saddle-riding vehicles other than motorcycles include bicycles. A bicycle generally refers to any vehicle that can be propelled along a road by applying pedal force to the pedals. In other words, bicycles include standard bicycles, electrically assisted bicycles, and electric bicycles. Furthermore, a motorcycle or three-wheeled motor vehicle refers to a so-called motorcycle, which includes a motorbike, a scooter, an electric scooter, and the like.

[0015] Furthermore, the configurations, operations, etc. described below are merely examples, and the hydraulic control unit and saddle-ride type vehicle according to the present invention are not limited to such configurations, operations, etc. For example, although the following describes a case in which the hydraulic control unit has two hydraulic circuits, the number of hydraulic circuits in the hydraulic control unit is not limited to two. The hydraulic control unit may have only one hydraulic circuit, or may have three or more hydraulic circuits.

[0016] In addition, in each drawing, the same or similar members or parts are denoted by the same reference numerals or are omitted from the drawings. Detailed structures are appropriately simplified or omitted from the drawings. Duplicate explanations are appropriately simplified or omitted from the drawings.

[0017] Embodiment <Configuration and operation of brake system for saddle-ride type vehicle> The configuration and operation of a brake system according to this embodiment will be described. Fig. 1 is a diagram showing the configuration of a saddle-ride type vehicle equipped with a brake system including a hydraulic pressure control unit according to an embodiment of the present invention. Fig. 2 is a diagram showing the configuration of a brake system including a hydraulic pressure control unit according to an embodiment of the present invention.

[0018] 1 and 2, the brake system 10 is mounted on a saddle-ride type vehicle 100, which may be, for example, a motorcycle. The saddle-ride type vehicle 100 includes a body 1, a handlebar 2 rotatably held by the body 1, a front wheel 3 rotatably held together with the handlebar 2 by the body 1, and a rear wheel 4 rotatably held by the body 1.

[0019] The brake system 10 includes a brake lever 11, a first hydraulic circuit 12 filled with brake fluid, a brake pedal 13, and a second hydraulic circuit 14 filled with brake fluid. The brake lever 11 is provided on the steering wheel 2 and is operated by the driver's hand. The first hydraulic circuit 12 generates a braking force corresponding to the amount of operation of the brake lever 11 on a rotor 3a that rotates together with the front wheels 3. The brake pedal 13 is provided on the lower part of the body 1 and is operated by the driver's foot. The second hydraulic circuit 14 generates a braking force corresponding to the amount of operation of the brake pedal 13 on a rotor 4a that rotates together with the rear wheels 4.

[0020] The brake lever 11 and the brake pedal 13 are examples of brake input units. For example, a brake pedal other than the brake pedal 13 provided on the body 1 may be used as a brake input unit instead of the brake lever 11. Also, for example, a brake lever other than the brake lever 11 provided on the handlebars 2 may be used as a brake input unit instead of the brake pedal 13. The first hydraulic circuit 12 may be configured to generate a braking force on the rotor 4a that rotates together with the rear wheel 4 in accordance with the amount of operation of the brake lever 11 or a brake pedal other than the brake pedal 13 provided on the body 1. The second hydraulic circuit 14 may be configured to generate a braking force on the rotor 3a that rotates together with the front wheel 3 in accordance with the amount of operation of the brake pedal 13 or a brake lever other than the brake lever 11 provided on the handlebars 2.

[0021] The first hydraulic pressure circuit 12 and the second hydraulic pressure circuit 14 have the same configuration. Therefore, the following description will be given of the configuration of the first hydraulic pressure circuit 12 as a representative. The first hydraulic pressure circuit 12 includes a master cylinder 20 that has a built-in piston (not shown), a reservoir 21 that is attached to the master cylinder 20, a brake caliper 22 that has brake pads (not shown), and a wheel cylinder 23 that operates the brake pads (not shown) of the brake caliper 22.

[0022] A base 61 of a hydraulic control unit 60 provided in the first hydraulic circuit 12 is formed with a flow path 24 through which brake fluid flows. In this embodiment, the base 61 is formed with a main flow path 25, a secondary flow path 26, and a booster flow path 27 as the flow path 24. In the first hydraulic circuit 12, the master cylinder 20 and the wheel cylinders 23 are connected via a fluid pipe connected between the master cylinder 20 and a master cylinder port MP formed in the base 61, the main flow path 25 formed in the base 61, and a fluid pipe connected between the wheel cylinders 23 and wheel cylinder ports WP formed in the base 61. Brake fluid in the wheel cylinders 23 is released via the secondary flow path 26 to a main flow path intermediate portion 25a, which is an intermediate portion of the main flow path 25. Brake fluid in the master cylinder 20 is supplied via the booster flow path 27 to a secondary flow path intermediate portion 26a, which is an intermediate portion of the secondary flow path 26.

[0023] The base 61 is also provided with a hydraulic pressure regulating valve 30 that opens and closes the flow path 24. In this embodiment, the base 61 is provided with an inlet valve 31, a release valve 32, a switching valve 33, and a pressure increase valve 34 as the hydraulic pressure regulating valve 30. Specifically, the inlet valve 31 is provided in a region of the main flow path 25 closer to the wheel cylinder 23 than the main flow path intermediate portion 25a. The opening and closing operation of the inlet valve 31 opens and closes the flow path portion of the main flow path 25 where the inlet valve 31 is installed, thereby controlling the flow rate of brake fluid flowing through this region. The secondary flow path 26 is provided with a release valve 32 in a region upstream of the secondary flow path intermediate portion 26a. The secondary flow path 26 is also provided with an accumulator 28 that stores brake fluid in a region upstream of the secondary flow path intermediate portion 26a. Specifically, the release valve 32 and the accumulator 28 are provided in this order from upstream to downstream in the region of the secondary flow path 26 upstream of the secondary flow path intermediate portion 26a. The opening and closing operation of the release valve 32 opens and closes the flow path portion of the secondary flow path 26 where the release valve 32 is installed, thereby controlling the flow rate of the brake fluid flowing through this region. In addition, a pump 29 that applies pressure to the brake fluid in the secondary flow path 26 is provided in a region of the secondary flow path 26 downstream of the secondary flow path intermediate portion 26a.

[0024] A switching valve 33 is provided in a region of the main flow path 25 closer to the master cylinder 20 than the main flow path intermediate portion 25a. The opening and closing operation of the switching valve 33 opens and closes the flow path portion of the main flow path 25 where the switching valve 33 is installed, thereby controlling the flow rate of brake fluid flowing through this region. A pressure increase valve 34 is provided in the pressure increase flow path 27. The opening and closing operation of the pressure increase valve 34 opens and closes the flow path portion of the pressure increase flow path 27 where the pressure increase valve 34 is installed, thereby controlling the flow rate of brake fluid flowing through the pressure increase flow path 27.

[0025] A master cylinder pressure sensor 35 for detecting the hydraulic pressure of the brake fluid in the master cylinder 20 is provided in a region of the main flow path 25 closer to the master cylinder 20 than the switching valve 33. A wheel cylinder pressure sensor 36 for detecting the hydraulic pressure of the brake fluid in the wheel cylinder 23 is provided in a region of the main flow path 25 closer to the wheel cylinder 23 than the inlet valve 31.

[0026] That is, the main flow path 25 connects the master cylinder port MP and the wheel cylinder port WP via the inlet valve 31. The secondary flow path 26 is defined as a part or all of the flow path that releases the brake fluid from the wheel cylinder 23 to the master cylinder 20 via the release valve 32. The pressure-boosting flow path 27 is defined as a part or all of the flow path that supplies the brake fluid from the master cylinder 20 to the upstream side of the pump 29 of the secondary flow path 26 via the pressure-boosting valve 34.

[0027] The inlet valve 31 is a solenoid valve that switches the flow of brake fluid from open to closed at its installation location when, for example, it changes from a de-energized state to an energized state. The release valve 32 is a solenoid valve that switches the flow of brake fluid from closed to open through its installation location toward the secondary flow path intermediate portion 26a when, for example, it changes from a de-energized state to an energized state. The switching valve 33 is a solenoid valve that switches the flow of brake fluid from open to closed at its installation location when, for example, it changes from a de-energized state to an energized state. The pressure-increasing valve 34 is a solenoid valve that switches the flow of brake fluid from closed to open through its installation location toward the secondary flow path intermediate portion 26a when, for example, it changes from a de-energized state to an energized state.

[0028] The pump 29 of the first hydraulic pressure circuit 12 and the pump 29 of the second hydraulic pressure circuit 14 are driven by a common motor unit 40. In other words, the motor unit 40 is a drive source for the pumps 29.

[0029] The hydraulic control unit 60 is composed of a base 61, the various components provided on the base 61 (hydraulic pressure regulating valve 30, accumulator 28, pump 29, master cylinder hydraulic pressure sensor 35, wheel cylinder hydraulic pressure sensor 36, motor unit 40, etc.), and a control device (ECU) 50.

[0030] The control device 50 may be a single device or may be divided into multiple devices. The control device 50 may be attached to the base 61, or may be attached to a member other than the base 61. A part or all of the control device 50 may be configured, for example, by a microcomputer, a microprocessor unit, or the like, or may be configured with updatable firmware or the like, or may be a program module executed by commands from a CPU or the like. In the hydraulic control unit 60 according to this embodiment, at least the portion of the control device 50 that controls the hydraulic pressure regulating valve 30 is configured by a control board 51, which will be described later.

[0031] For example, under normal conditions, the control device 50 controls the inlet valve 31, the release valve 32, the switching valve 33, and the pressure increase valve 34 to be in a non-energized state. When the brake lever 11 is operated in this state, the piston (not shown) of the master cylinder 20 is pushed in the first hydraulic circuit 12, increasing the hydraulic pressure of the brake fluid in the wheel cylinder 23, and the brake pads (not shown) of the brake caliper 22 are pressed against the rotor 3a of the front wheel 3, thereby braking the front wheel 3. When the brake pedal 13 is operated, the piston (not shown) of the master cylinder 20 is pushed in the second hydraulic circuit 14, increasing the hydraulic pressure of the brake fluid in the wheel cylinder 23, and the brake pads (not shown) of the brake caliper 22 are pressed against the rotor 4a of the rear wheel 4, thereby braking the rear wheel 4.

[0032] The outputs of each sensor (master cylinder hydraulic pressure sensor 35, wheel cylinder hydraulic pressure sensors 36, wheel speed sensors, acceleration sensors, etc.) are input to the control device 50. In response to these outputs, the control device 50 outputs commands that control the operation of the motor unit 40 and each valve, etc., and executes pressure reduction control operations, pressure increase control operations, etc.

[0033] For example, when the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the first hydraulic pressure circuit 12 is excessive or there is a possibility that the hydraulic pressure of the brake fluid is excessive, the control device 50 executes an operation to reduce the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the first hydraulic pressure circuit 12. In this case, the control device 50 controls the inlet valve 31 to an energized state, the release valve 32 to an energized state, the switching valve 33 to a de-energized state, and the pressure increase valve 34 to a de-energized state in the first hydraulic pressure circuit 12, while driving the motor unit 40. Furthermore, when the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the second hydraulic pressure circuit 14 is excessive or there is a possibility that the hydraulic pressure of the brake fluid is excessive, the control device 50 executes an operation to reduce the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the second hydraulic pressure circuit 14. At that time, the control device 50 drives the motor unit 40 while controlling the inlet valve 31 to an energized state, the release valve 32 to an energized state, the switching valve 33 to a non-energized state, and the pressure booster valve 34 to a non-energized state in the second hydraulic circuit 14.

[0034] Furthermore, for example, when the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the first hydraulic pressure circuit 12 is insufficient or there is a possibility that the hydraulic pressure of the brake fluid will be insufficient, the control device 50 executes an operation to increase the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the first hydraulic pressure circuit 12. In this case, the control device 50 controls the inlet valve 31 to a non-conductive state, the release valve 32 to a non-conductive state, the switching valve 33 to a conductive state, and the pressure increase valve 34 to a conductive state in the first hydraulic pressure circuit 12, while driving the motor unit 40. Furthermore, when the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the second hydraulic pressure circuit 14 is insufficient or there is a possibility that the hydraulic pressure of the brake fluid will be insufficient, the control device 50 executes an operation to increase the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the second hydraulic pressure circuit 14. At that time, the control device 50 drives the motor unit 40 while controlling the inlet valve 31 to a non-energized state, the release valve 32 to a non-energized state, the switching valve 33 to a powered state, and the boost valve 34 to a powered state in the second hydraulic circuit 14.

[0035] That is, the hydraulic pressure control unit 60 controls the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the first hydraulic pressure circuit 12, thereby enabling antilock braking operation of the first hydraulic pressure circuit 12. The hydraulic pressure control unit 60 also controls the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the second hydraulic pressure circuit 14, thereby enabling antilock braking operation of the second hydraulic pressure circuit 14. The hydraulic pressure control unit 60 also controls the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the first hydraulic pressure circuit 12, thereby enabling automatic pressure increase operation of the first hydraulic pressure circuit 12. The hydraulic pressure control unit 60 also controls the hydraulic pressure of the brake fluid in the wheel cylinder 23 of the second hydraulic pressure circuit 14, thereby enabling automatic pressure increase operation of the second hydraulic pressure circuit 14.

[0036] <Configuration of hydraulic control unit> As described above, the hydraulic pressure control unit 60 controls the hydraulic pressure of the brake fluid. This hydraulic pressure control unit 60 is configured as a unit including the base body 61, the hydraulic pressure regulating valve 30, the control board 51 of the control device 50, and the housing 70. The configuration of the unitized parts of the hydraulic pressure control unit 60 will be described below.

[0037] 3 and 4 are partial cross-sectional views of a hydraulic control unit according to an embodiment of the present invention as seen from the side, illustrating a state before the base body 61 and the housing 70 are fixed together. Note that FIG. 4 is a partial cross-sectional view of the hydraulic control unit 60 as viewed from the direction of arrow A shown in FIG. 3. FIG. 5 is a partial cross-sectional view of the hydraulic control unit according to an embodiment of the present invention as viewed from the side, illustrating a state after the base body 61 and the housing 70 are fixed together. Note that FIG. 6 is a view of the base body 61 and the components provided on the base body 61 of the hydraulic control unit according to an embodiment of the present invention as viewed from the direction of arrow B shown in FIG. 3. Note that in FIG. 6, the position of a tip end 81 of a spacer 80 (described later) before the base body 61 and the housing 70 are fixed together is indicated by an imaginary two-dot chain line. In addition, in FIG. 6, the direction in which the tip 81 of the space forming portion 80 moves when the base body 61 and the housing 70 are fixed together is indicated by an arrow with a black tip.

[0038] The base 61 is made of a metal such as an aluminum alloy and has, for example, a substantially rectangular parallelepiped shape. Each side surface of the base 61 may be flat, may include a curved portion, or may include a step.

[0039] The motor unit 40 and the hydraulic pressure regulating valve 30 are provided upright on a side surface 61a of the base body 61. An eccentric body 42 that rotates together with the output shaft 41 of the motor unit 40 is attached to the output shaft 41 of the motor unit 40. When the eccentric body 42 rotates, the plunger of the pump 29 that is pressed against the outer peripheral surface of the eccentric body 42 reciprocates, thereby transporting brake fluid from the suction side to the discharge side of the pump 29.

[0040] The housing 70 is formed of, for example, resin and has, for example, a substantially rectangular parallelepiped shape. The housing 70 houses the control board 51. Specifically, the housing 70 includes a main body 71 and a lid 72. The main body 71 has a substantially box-like shape with an open side facing the base 61. The lid 72 covers the end of the main body 71 opposite to the base 61. The control board 51 is disposed in a space surrounded by the main body 71 and the lid 72.

[0041] The control board 51 is electrically connected to the motor unit 40 and the hydraulic pressure regulating valve 30. There are no particular limitations on the connection configuration of the control board 51 with the motor unit 40 and the hydraulic pressure regulating valve 30, but in this embodiment, the control board 51 is electrically connected to the motor unit 40 and the hydraulic pressure regulating valve 30 as follows: A connection terminal 44 is attached to the main body 71 of the housing 70. The control board 51 is electrically connected to this connection terminal 44. The motor unit 40 has a motor terminal 43. The motor terminal 43 of the motor unit 40 is electrically connected to the connection terminal 44, thereby electrically connecting the motor unit 40 and the control board 51. The hydraulic pressure regulating valve 30 also has a terminal 30a. The terminal 30a is electrically connected to the control board 51, thereby electrically connecting the hydraulic pressure regulating valve 30 and the control board 51.

[0042] The housing 70 is bonded to the base 61 with an adhesive 90 (e.g., a silicone adhesive). In this embodiment, the main body 71 of the housing 70 is bonded to the side surface 61a of the base 61 with the adhesive 90. The adhesive 90 seals the gap between the base 61 and the housing 70. While the type of adhesive 90 is not particularly limited, in this embodiment, a silicone adhesive is used as the adhesive 90. In conventional hydraulic control units, silicone adhesives are often used as the adhesive between the base and the housing. Therefore, using a silicone adhesive as the adhesive 90 improves the reliability of the hydraulic control unit 60. In the following, the bonded portion of the base 61 to the housing 70 will be referred to as a bonded portion 62. The bonded portion of the housing 70 to the base 61 will be referred to as a bonded portion 73.

[0043] The base 61 and the housing 70, which are bonded with the adhesive 90, are fixed together with a fastener 95. In this embodiment, a male screw is used as the fastener 95. Specifically, the male screw serving as the fastener 95 is passed through the main body 71 of the housing 70 and threaded into a threaded hole 63 formed in the base 61, thereby fixing the base 61 and the main body 71 of the housing 70 together. The fastener 95 is not limited to a male screw. For example, in the past, when two components were fixed together, an engaging claw provided on one component was sometimes hooked into a recess formed in the other component to fix the two components together. The fastener 95 may be such an engaging claw. Furthermore, if the base 61 and the housing 70 can be fixed together only by the adhesive strength of the adhesive 90, the hydraulic control unit 60 may not be provided with the fastener 95.

[0044] In hydraulic control units mounted on automobiles and the like, an O-ring seals the gap between the base and the housing. However, when sealing the gap between the base and the housing with an O-ring, it is necessary to fix the base and the housing near the O-ring, for example by arranging a fixing screw on the outer periphery of the O-ring. Therefore, when sealing the gap between the base and the housing with an O-ring, the hydraulic control unit becomes large. On the other hand, straddle-type vehicles, which are one type of vehicle, have less freedom in component layout and less freedom in mounting the hydraulic control unit compared to vehicles such as automobiles and the like. For this reason, there has been a demand for miniaturization of hydraulic control units mounted on straddle-type vehicles. Therefore, in conventional hydraulic control units for straddle-type vehicles, the base and the housing are bonded with a silicone adhesive, and the silicone adhesive seals the gap between the base and the housing.

[0045] Conventionally, hydraulic control units for saddle-ride type vehicles are manufactured, for example, by the following assembly process. First, a silicone adhesive is applied to the base. Then, a positioning operation is performed between the base and the housing to secure them together. In the positioning operation, the base and the housing are positioned while forming a gap between them. Then, after the positioning operation, a fixing operation is performed. In the fixing operation, the base and the housing are pressed close to each other, so that the silicone adhesive on the base also adheres to the housing, bonding the base and the housing, and the base and the housing are fixed together with screws.

[0046] For example, in a conventional hydraulic control unit for a saddle-ride type vehicle, before the base and housing are fixed to each other (for example, during the positioning operation or between the positioning operation and the fixing operation), vibrations acting on the base and housing can cause part of the adhesive applied to one of the base and housing to adhere to the other of the base and housing. Examples of vibrations acting on the base and housing include hand tremors and incorrect operation during manual positioning. Examples of vibrations acting on the base and housing include vibrations caused by operational errors during positioning. Examples of vibrations acting on the base and housing include vibrations occurring when the base and housing are moved to the location where the fixing operation will be performed after the positioning operation.

[0047] For example, if at least a portion of the housing adheres to the adhesive due to vibration or the like during the positioning operation or between the positioning operation and the fixing operation, and the base and the housing are then separated, the adhesive may become in the following state. For example, the adhesive attached to the housing may stretch, causing air bubbles to form in the adhesive, resulting in the formation of holes in the adhesive that connect the inside and outside of the hydraulic control unit. Furthermore, if air bubbles form in the adhesive, even if holes connecting the inside and outside of the hydraulic control unit are not formed in the adhesive, areas where the adhesive is thin may occur. Even if no air bubbles form in the adhesive, areas where the adhesive is partially thick or partially thin may occur, forming passages in the adhesive that connect the inside and outside of the hydraulic control unit. Furthermore, the adhesive may adhere to an unintended location, causing areas where the adhesive is partially thick or partially thin, forming passages in the adhesive that connect the inside and outside of the hydraulic control unit. If the adhesive becomes in the above-described state, the sealing performance between the base and the housing may be reduced. In other words, in conventional hydraulic control units for saddle-ride vehicles, before the base and housing are fixed together (for example, during the positioning operation, or between the positioning operation and the fixing operation), there is a risk that at least a portion of the adhesive applied to the base will adhere to the housing, thereby reducing the sealing ability between the base and the housing.

[0048] Therefore, the hydraulic control unit 60 according to this embodiment includes a gap forming portion 80 to prevent adhesive (e.g., a silicone adhesive) from adhering to the housing 70 before the base and the housing are fixed together (e.g., during a positioning operation or between the positioning operation and the fixing operation). The gap forming portion 80 forms a gap between the bonding location 73 of the housing 70 and the bonding location 62 of the base 61 before the housing 70 and the base 61 are fixed together. The gap forming portion 80 is provided on the housing 70 or the base 61. Hereinafter, the housing 70 or the base 61 that includes the gap forming portion 80 may be referred to as a first component, and the other that does not include the gap forming portion 80 may be referred to as a second component. Furthermore, of the bonding locations 73 and 62, the bonding location of the first component may be referred to as a first bonding location, and the bonding location of the second component may be referred to as a second bonding location.

[0049] The gap forming portion 80 according to this embodiment will be described in detail below. In the hydraulic control unit 60 according to this embodiment, the housing 70 is configured to include the gap forming portion 80. That is, in this embodiment, the housing 70 corresponds to the first component according to the present invention, the base 61 corresponds to the second component according to the present invention, the bonding points 73 of the housing 70 correspond to the first bonding points according to the present invention, and the bonding points 62 of the base 61 correspond to the second bonding points according to the present invention.

[0050] 3 and 4, the gap forming portions 80 extend from the housing 70 toward the base 61 before the housing 70 and the base 61 are fixed together. The gap forming portions 80 are, for example, pin-shaped. The number of gap forming portions 80 is not particularly limited, but it is preferable that the number of gap forming portions 80 is such that the housing 70 can stand on its own on the base 61 by means of the gap forming portions 80 (for example, two, three, etc.).

[0051] 3 and 4 , when the housing 70 and the base 61 are positioned to fix the housing 70 to the base 61, the tip 81 of the spacing portion 80 abuts against the side surface 61a of the base 61. This allows a gap to be formed between the bonding points 73 of the housing 70 and the bonding points 62 of the base 61 before the housing 70 and the base 61 are fixed. That is, when the housing 70 and the base 61 are positioned, the housing 70 can be prevented from coming into contact with the adhesive 90 applied to the bonding points 62 of the base 61. Note that the adhesive 90 may be applied to the bonding points 73 of the housing 70. In this case, when the housing 70 and the base 61 are positioned, the base 61 can be prevented from coming into contact with the adhesive 90 applied to the bonding points 73 of the housing 70.

[0052] In this embodiment, the housing 70 and the base 61 are positioned as follows. The housing 70 is provided with a plurality of positioning pins 74. A plurality of recesses 64 into which the positioning pins 74 are inserted are formed on the side surface 61a of the base 61. The positioning pins 74 are inserted into the recesses 64, thereby positioning the housing 70 and the base 61.

[0053] Furthermore, in this embodiment, when the housing 70 and the base 61 are positioned, the components provided on the housing 70 and the components provided on the base 61 are connected. For example, the control board 51 provided on the housing 70 is electrically connected to the motor unit 40 and the hydraulic pressure regulating valve 30 provided on the base 61. Specifically, at least one of the housing 70 and the base 61 is pressed to insert the positioning pin 74 into the recess 64, thereby positioning the housing 70 and the base 61. Thereafter, by continuing to press at least one of the housing 70 and the base 61, the components provided on the housing 70 and the components provided on the base 61 are connected. Then, after the components provided on the housing 70 and the components provided on the base 61 are connected, the tip 81 of the spacer 80 abuts against the side surface 61 a of the base 61.

[0054] Note that the connection between the components provided on the housing 70 and the base 61 may be performed in a step after the positioning operation of the housing 70 and the base 61, such as during the operation of fixing the housing 70 and the base 61. The configuration for positioning the housing 70 and the base 61 is not limited to the configuration described above. For example, at least one of the positioning pins 74 may be provided on the base 61, and at least one of the recesses 64 may be formed in the housing 70. Furthermore, the positions of the housing 70 and the base 61 may be aligned without using the configuration provided in the hydraulic control unit 60, and the components provided on the housing 70 and the components provided on the base 61 may be connected. In this case, the connection between the components provided on the housing 70 and the components provided on the base 61 serves to position the housing 70 and the base 61. Aligning the positions of the housing 70 and the base 61 without using the configuration provided in the hydraulic control unit 60 means, for example, aligning the positions of the housing 70 and the base 61 using a jig. Furthermore, aligning the positions of the housing 70 and the base 61 without using the configuration provided in the hydraulic control unit 60 may mean, for example, aligning the positions of the housing 70 and the base 61 without using any parts that come into contact with the housing 70 and the base 61, such as visual inspection or image processing.

[0055] As shown in FIG. 5 , the gap forming portion 80 is configured to break when the housing 70 and the base 61 are fixed together. Specifically, when fixing the housing 70 and the base 61, a load equal to or greater than a specified load is applied to at least one of the housing 70 and the base 61, and the housing 70 and the base 61 are brought closer together. As a result, the gap forming portion 80 is configured to break at the base portion 82. Therefore, even when the gap forming portion 80 is provided, the hydraulic control unit 60 can fix the housing 70 and the base 61 together. That is, the hydraulic control unit 60 according to this embodiment can prevent the adhesive applied to the base 61 from adhering to the housing 70 before the housing 70 and the base 61 are fixed together. As a result, the hydraulic control unit 60 according to this embodiment can prevent a deterioration in the sealing performance between the housing 70 and the base 61.

[0056] In this embodiment, the spacing portion 80 is configured so that at least a portion thereof moves away from the adhesive 90 and breaks when the housing 70 and the base 61 are fixed together. More specifically, in this embodiment, the spacing portion 80 is configured so that at least a portion thereof moves away from the portion of the adhesive 90 closest to the spacing portion 80 and breaks when the housing 70 and the base 61 are fixed together. Specifically, in this embodiment, when the spacing portion 80 is observed in the opposing direction of the bonding portion 73 of the housing 70 and the bonding portion 62 of the base 61 before the housing 70 and the base 61 are fixed together, the tip portion 81 of the spacing portion 80 is farther from the portion of the adhesive 90 closest to the spacing portion 80 than the base portion 82 of the spacing portion 80. As a result, when the housing 70 and the base 61 are fixed together, the spacing portion 80 moves in the direction away from the portion of the adhesive 90 closest to the spacing portion 80 and breaks. Note that the configuration in which spacing forming portion 80 moves in a direction away from adhesive 90 and bends may also be a configuration in which spacing forming portion 80 moves in a direction parallel to adhesive 90 and bends. By moving at least a part of spacing forming portion 80 in a direction away from adhesive 90 and bending, spacing forming portion 80 can be prevented from coming into contact with adhesive 90 when it bends, and deterioration of the sealing performance between housing 70 and base 61 can be further prevented.

[0057] Furthermore, in this embodiment, when observed in the direction in which the bonding points 73 of the housing 70 and the bonding points 62 of the base 61 face each other, the bonding points 73 and 62 are shaped to surround at least the hydraulic pressure adjustment valve 30. In other words, when observed in the direction in which the bonding points 73 and 62 face each other, the adhesive 90 applied to the bonding points 73 or 62 is shaped to surround at least the hydraulic pressure adjustment valve 30. When observed in the direction in which the bonding points 73 and 62 face each other, the spacing portion 80 is disposed inside the bonding points 73 and 62. By arranging the spacing portion 80 in this manner, even if the bending portion breaks and the spacing portion 80 becomes detached from the housing 70, the spacing portion 80 remains inside the hydraulic control unit 60. Therefore, by arranging the spacing portion 80 in this manner, it is possible to prevent the spacing portion 80, which has become detached from the housing 70, from becoming a foreign object during the manufacturing process of the hydraulic control unit 60. Therefore, by arranging the space forming portion 80 in this manner, a decrease in the yield of the hydraulic control unit 60 can be suppressed.

[0058] <Manufacturing method for hydraulic control unit> Fig. 7 is a flowchart illustrating a manufacturing method of a hydraulic control unit according to an embodiment of the present invention. Fig. 7 shows the manufacturing process for fixing the housing 70 and the base body 61 together after the necessary parts are attached to the housing 70 and the base body 61, respectively.

[0059] After the necessary parts are attached to the housing 70 and the base 61, the application step of step S1 is performed. In the application step of step S1, adhesive 90 is applied to the housing 70 or the base 61. Specifically, adhesive 90 is applied to the bonding area 73 of the housing 70 or the bonding area 62 of the base 61.

[0060] Step S2 after step S1 is a gap forming step. In the gap forming step, when the housing 70 and the base 61 are positioned, the gap forming portion 80 is brought into contact with the base 61. As a result, a gap is formed between the bonding point 73 of the housing 70 and the bonding point 62 of the base 61.

[0061] Step S3, which follows step S2, is a fixing step. In the fixing step, the housing 70 and the base 61 are fixed together. Specifically, at least one of the housing 70 and the base 61 is pressed with a load equal to or greater than a specified load, bringing the housing 70 and the base 61 closer together. This causes the spacing portion 80 to break, and the adhesive 90 adheres to both the bonding points 73 of the housing 70 and the bonding points 62 of the base 61. Thereafter, a male screw, which is a fixing tool 95, is inserted through the housing 70 and screwed into the threaded hole 63 formed in the base 61, thereby fixing the base 61 and the housing 70 together. Finally, the cover 72 is attached to the main body 71 of the housing 70, thereby completing the hydraulic control unit 60.

[0062] <Effects of the hydraulic control unit> The effects of the hydraulic pressure control unit 60 according to this embodiment will be described.

[0063] The hydraulic control unit 60 according to this embodiment is mounted on a saddle-ride type vehicle 100 and controls the hydraulic pressure of brake fluid. The hydraulic control unit 60 includes a base 61 in which a flow path 24 for brake fluid is formed, and a housing that houses a control board 51 that controls a hydraulic pressure adjustment valve 30 that opens and closes the flow path 24 and is bonded to the base 61 with an adhesive 90. Here, one of the base 61 and the housing 70 is referred to as a first component, and the other component is referred to as a second component. The bonding location of the first component to the second component is referred to as a first bonding location, and the bonding location of the second component to the first component is referred to as a second bonding location. When defined in this way, the first component includes a gap forming portion 80 that forms a gap between the first bonding location and the second bonding location before the first component and the second component are fixed together.

[0064] In the hydraulic control unit 60 configured in this manner, as described above, before the first component (e.g., the housing 70) and the second component (e.g., the base 61) are fixed together, the gap forming portion 80 provided on the first component forms a gap between the first and second adhesive locations, thereby preventing the adhesive 90 applied to the second adhesive location from adhering to the first component. Therefore, the hydraulic control unit 60 configured in this manner can prevent a decrease in the sealing performance between the first and second components, i.e., between the base 61 and the housing 70.

[0065] <Modification> FIG. 8 is a partial cross-sectional side view of a modified example of a hydraulic control unit according to an embodiment of the present invention, illustrating a state in which the base and the housing are fixed together. The spacing portion 80 of the hydraulic control unit 60 described above is configured to remain connected to the housing 70 when it breaks when the housing 70 and the base 61 are fixed together. However, the spacing portion 80 of the hydraulic control unit 60 described above may be configured to break at the broken portion and become detached from the housing 70 when it breaks when the housing 70 and the base 61 are fixed together. In other words, the spacing portion 80 may include a broken portion 84 that is at least partially broken when the housing 70 and the base 61 are fixed together. Even in the hydraulic control unit 60 configured in this manner, before the base 61 and the housing 70 are fixed together, the adhesive 90 applied to the base 61 can be prevented from adhering to the housing 70, thereby preventing a deterioration in the sealing performance between the base 61 and the housing 70.

[0066] FIG. 9 is a partial cross-sectional side view of a modified example of a hydraulic control unit according to an embodiment of the present invention, illustrating a state before the base and the housing are fixed together. As shown in FIG. 9, the base 61 of the hydraulic control unit 60 may include a gap forming portion 80. When the housing 70 and the base 61 are positioned, the tip 81 of the gap forming portion 80 may abut against the housing 70. In other words, the base 61 may be the first component, and the housing 70 may be the second component. In the hydraulic control unit 60 configured in this manner, before the base 61 and the housing 70 are fixed together, the adhesive 90 applied to the base 61 can be prevented from adhering to the housing 70, thereby preventing a deterioration in the sealing performance between the base 61 and the housing 70.

[0067] FIG. 10 is a partial cross-sectional side view of a modified example of a hydraulic control unit according to an embodiment of the present invention, illustrating a state before the base and the housing are fixed together. The spacing portion 80 of the hydraulic control unit 60 described above is configured so that the base portion 82 bends when the housing 70 and the base 61 are fixed together. However, the spacing portion 80 may be configured so that the intermediate portion 83 bends when the housing 70 and the base 61 are fixed together. In such a case, the distal end 81 of the spacing portion 80 may or may not move when the housing 70 and the base 61 are fixed together. Even in the hydraulic control unit 60 configured in this manner, before the base 61 and the housing 70 are fixed together, the adhesive 90 applied to the base 61 can be prevented from adhering to the housing 70, thereby preventing a deterioration in the sealing performance between the base 61 and the housing 70.

[0068] FIG. 11 is a partial cross-sectional side view of a modified hydraulic control unit according to an embodiment of the present invention, illustrating a state before the base and the housing are fixed together. The gap forming portion 80 of the hydraulic control unit 60 described above is configured to bend when the housing 70 and the base 61 are fixed together. That is, the gap forming portion 80 of the hydraulic control unit 60 described above is configured to undergo plastic deformation when the housing 70 and the base 61 are fixed together. However, the configuration of the gap forming portion 80 is not particularly limited as long as it can form a gap between the bonded portions 73 and 62 before the base 61 and the housing 70 are fixed together and can fix the base 61 and the housing 70 together. For example, the gap forming portion 80 may be configured to undergo elastic deformation when the housing 70 and the base 61 are fixed together, as shown in FIG. 11 . 11 illustrates a coil spring as the gap forming portion 80 that elastically deforms when the housing 70 and the base 61 are fixed together, but the gap forming portion 80 that elastically deforms when the housing 70 and the base 61 are fixed together may be configured as a leaf spring or other structure other than a coil spring. Even in the hydraulic control unit 60 configured in this manner, before the base 61 and the housing 70 are fixed together, the adhesive 90 applied to the base 61 can be prevented from adhering to the housing 70, and a deterioration in the sealing performance between the base 61 and the housing 70 can be prevented.

[0069] FIG. 12 is a partial cross-sectional side view of a modified example of a hydraulic control unit according to an embodiment of the present invention, illustrating a state before the base and the housing are fixed together. In the hydraulic control unit 60 described above, the gap forming portion 80 is disposed inside the bonding points 73 and 62. However, this is not limited to this, and the gap forming portion 80 may be disposed outside the bonding points 73 and 62, as shown in FIG. 12. In the hydraulic control unit 60 configured in this manner, before the base 61 and the housing 70 are fixed together, the adhesive 90 applied to the base 61 can be prevented from adhering to the housing 70, thereby preventing a deterioration in the sealing performance between the base 61 and the housing 70.

[0070] 13 and 14 are partial cross-sectional views of a modified example of a hydraulic control unit according to an embodiment of the present invention, seen from the side, illustrating a state before the base and the housing are fixed together. Note that FIG. 14 is a partial cross-sectional view of the hydraulic control unit 60 shown in FIG. 13 , viewed in the direction of arrow C in FIG. 13 . In the hydraulic control unit 60, a groove 75 for guiding the spacing portion 80 may be formed in the second component. Note that FIGS. 13 and 14 illustrate an example in which the base 61 is the second component. The hydraulic control unit 60 configured in this manner makes it easier to control the direction in which the spacing portion 80 deforms when fixing the housing 70 and the base 61 together. Therefore, the hydraulic control unit 60 configured in this manner can prevent the spacing portion 80 from coming into contact with the adhesive 90 when deforming, thereby further preventing a deterioration in the sealing performance between the housing 70 and the base 61.

[0071] Here, if a groove 75 that guides the spacing forming portion 80 is formed in the second component, the spacing forming portion 80 may be inserted into the groove 75 to position the housing 70 and the base 61. In the hydraulic control unit 60 configured in this manner, the positioning pin 74 and recess 64 for positioning the housing 70 and the base 61 are not required, and the hydraulic control unit 60 can be made smaller.

[0072] Each of the hydraulic control units 60 described above includes a pump 29 and a motor unit 40. However, among conventional hydraulic control units, there are also so-called pumpless hydraulic units that do not include a pump or a motor unit. The hydraulic control unit 60 according to the present embodiment can also be configured as a pumpless hydraulic unit.

[0073] Although the hydraulic control unit 60 according to this embodiment has been described above, the hydraulic control unit according to the present invention is not limited to the description of this embodiment. The hydraulic control unit according to the present invention may be embodied in only a part of this embodiment. [Explanation of symbols]

[0074] 1 fuselage, 2 handle, 3 front wheel, 3a rotor, 4 rear wheel, 4a rotor, 10 brake system, 11 brake lever, 12 first hydraulic circuit, 13 brake pedal, 14 second hydraulic circuit, 20 master cylinder, 21 reservoir, 22 brake caliper, 23 wheel cylinder, 24 flow path, 25 main flow path, 25a main flow path intermediate portion, 26 secondary flow path, 26a secondary flow path intermediate portion, 27 booster flow path, 28 accumulator, 29 pump, 30 hydraulic pressure adjustment valve, 30a terminal, 31 inlet valve, 32 release valve, 33 switching valve, 34 booster valve, 35 master cylinder hydraulic pressure sensor, 36 wheel cylinder hydraulic pressure sensor, 40 motor unit, 41 output shaft, 42 eccentric body, 43 motor terminal, 44 connection terminal, 50 control device, 51 control board, 60 Hydraulic control unit, 61 base, 61a side, 62 bonding point, 63 screw hole, 64 recess, 70 housing, 71 main body, 72 lid, 73 bonding point, 74 positioning pin, 75 groove, 80 spacing forming portion, 81 tip portion, 82 base portion, 83 middle portion, 84 breaking portion, 90 adhesive, 95 fixing device, 100 saddle-type vehicle, MP master cylinder port, WP wheel cylinder port.

Claims

1. A hydraulic pressure control unit (60) mounted on a saddle-ride type vehicle (100) and controlling hydraulic pressure of brake fluid, a base (61) in which a flow path (24) for brake fluid is formed; a housing (70) that houses a control board (51) that controls a hydraulic pressure regulating valve (30) that opens and closes the flow path (24) and is bonded to the base body (61) with an adhesive (90); Equipped with One of the base (61) and the housing (70) is a first part, and the other is a second part; a bonding location of the first component to the second component is designated as a first bonding location; When the adhesion portion of the second component to the first component is defined as a second adhesion portion, The first part is The adhesive tape is provided with a gap forming portion (80) that forms a gap between the first adhesive portion and the second adhesive portion before the first component and the second component are fixed to each other. Hydraulic control unit (60).

2. The spacer (80) is configured to deform when the first component and the second component are fixed together. The hydraulic control unit (60) of claim 1.

3. The space forming portion (80) extends from the first part toward the second part before the first part and the second part are fixed together, and is configured to bend when the first part and the second part are fixed together. The hydraulic control unit (60) of claim 2.

4. The spacing forming portion (80) is configured so that at least a part of the spacing forming portion (80) moves in a direction away from the adhesive (90) and bends when the first component and the second component are fixed together. The hydraulic control unit (60) of claim 3.

5. The space forming portion (80) includes a breaking portion (84) that is at least partially broken when the first component and the second component are fixed together. The hydraulic control unit (60) of claim 3.

6. When observed in a direction in which the first adhesive portion and the second adhesive portion face each other, The first adhesive portion is formed in a shape that surrounds at least the hydraulic pressure regulating valve (30), The spacing portion (80) is disposed inside the first adhesive portion. The hydraulic control unit (60) of claim 2.

7. The first part and the second part are fixed together by a fixture (95). The hydraulic control unit (60) of claim 2.

8. The first part is the housing (70). A hydraulic control unit (60) according to any one of claims 1 to 7.

9. The first part is the base (61). A hydraulic control unit (60) according to any one of claims 1 to 7.

10. The adhesive (90) is a silicone adhesive A hydraulic control unit (60) according to any one of claims 1 to 7.

11. A positioning pin (74) provided on the other of the first and second parts is inserted into a recess (64) formed on one of the first and second parts, thereby positioning the first and second parts. A hydraulic control unit (60) according to any one of claims 1 to 7.

12. A groove (75) for guiding the spacer (80) is formed in the second part. A hydraulic control unit (60) according to any one of claims 1 to 7.

13. The spacing forming portion (80) is inserted into the groove (75) to position the first part and the second part. A hydraulic control unit (60) according to claim 12.

14. The hydraulic control unit (60) according to any one of claims 1 to 7 is provided. Saddle-type vehicle (100).

15. A method for manufacturing a hydraulic pressure control unit (60) that is mounted on a saddle-ride type vehicle (100) and controls hydraulic pressure of brake fluid, comprising: The hydraulic pressure control unit (60) a base (61) in which a flow path (24) for brake fluid is formed; a housing (70) that houses a control board (51) that controls a hydraulic pressure regulating valve (30) that opens and closes the flow path (24) and is bonded to the base body (61) with an adhesive (90); Equipped with One of the base (61) and the housing (70) is a first part, and the other is a second part; a bonding location of the first component to the second component is designated as a first bonding location; When the adhesion portion of the second component to the first component is defined as a second adhesion portion, the first component includes a gap forming portion (80) that forms a gap between the first adhesive portion and the second adhesive portion before the first component and the second component are fixed together; an application step (S1) in which the adhesive (90) is applied to the first component or the second component; a gap forming step (S2) in which the gap forming portion (80) is brought into contact with the second component to form a gap between the first adhesive portion and the second adhesive portion; a fixing step (S3) in which the first part and the second part are fixed together; Equipped with A method for manufacturing a hydraulic control unit (60).

Citation Information

Patent Citations

  • Hydraulic pressure control unit, brake system and saddle-type vehicle

    JP7303883B2