JP3447444B2 - Brake fluid pressure control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair of reciprocating plunger pumps that recirculate brake fluid from wheel brakes to the master cylinder side. A bracket provided on a motor housing of a single motor having an output shaft orthogonal to the operating axis is fastened to a base body, and a cam for applying a driving force to both plunger pumps is provided on the output shaft. Regarding

[0002]

2. Description of the Related Art Conventionally, such a device is disclosed in, for example, Japanese Patent Laid-Open No.
It is already known from the publication No. 156774.

[0003]

However, in the structure in which the output shaft of the motor is arranged orthogonally to the operation axis of the pair of reciprocating plunger pumps, the reaction force of the plunger pump during the operation of the motor causes the plunger pump to move. There is a problem that the pump efficiency is lowered due to the vibration of the plunger caused by the vibration of the output shaft and the change of the stroke of the plunger pump caused by the vibration of the cam. To solve this problem, the support structure of the motor on the base body may be reinforced in the direction along the operating axis of both plunger pumps, but it is difficult to fix it with bolts or the like because both base body pumps are built in the base body. Therefore, the vibration cannot be effectively prevented.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a brake fluid pressure control device capable of effectively preventing vibration of a motor associated with the operation of both plunger pumps. To aim.

[0005]

In order to achieve the above object, the invention according to claim 1 provides a pair of reciprocating plunger pumps for circulating the brake fluid from the wheel brakes to the master cylinder side. A bracket provided in a motor housing of a single motor having an operating axis coaxial with the base body and having an output shaft orthogonal to the operating axes of both plunger pumps is fastened to the base body, and the output shaft has both plunger pumps. In the brake fluid pressure control device provided with a cam that gives a driving force to the
On the surface, multiple bosses for fastening the bracket,
Of the motor in the direction along the operating axis of both plunger pumps.
Increases support strength and suppresses motor vibration along the same direction
A pair of abutment support portion abuts on the bracket only on both sides of the output shaft along the working axis is collision set for, of the pair
The amount of protrusion of the contact support part
The extent to which the bracket is preloaded when worn
It is set to .

The invention according to claim 2 is the above-mentioned claim 1.
In addition to the configuration of the invention described above, the bracket is integrally provided with a pair of vibration suppressing arms extending outwardly on both sides along the operating axes of the plunger pumps and abutting against the abutting support portions, respectively. Characterize.

Further, in addition to the structure of the invention according to claim 2, the invention according to claim 3 is provided on the inner surface side of the bracket.
A pair of vibration suppression arms of the bracket is attached to the insulating member that is in contact with
A pair of abutting against each other and extending outward from the motor housing
The arms of the are integrally provided, and the tips of both arms are respectively
The L-shaped locking part provided is engaged with the tip of the vibration suppression arm.
The connector facing the connection terminal communicating with the inside of the motor housing is brought into contact with and supported by one of both vibration suppressing arms.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below based on an embodiment of the present invention shown in the accompanying drawings.

1 to 6 show an embodiment of the present invention. FIG. 1 is a hydraulic circuit diagram of a vehicle brake device,
2 is a side view of the brake fluid pressure control device, and FIG.
-3 line sectional view, FIG. 4 is a view on arrow 4 of FIG. 2, and FIG.
FIG. 6 is a sectional view taken along line -5, and FIG. 6 is a view taken along the line 6-6 in FIG.

First, in FIG. 1, the tandem type master cylinder M is provided with a pair of output ports 13 ₁ and 13 ₂ for outputting a braking fluid pressure according to the depression of the brake pedal P, and the front left wheel brake B _FL. , A proportional pressure reducing valve 14 _R connected to the right rear wheel wheel brake B _RR , a right front wheel wheel brake B _FR , and a proportional pressure reducing valve 14 _L connected to the left rear wheel wheel brake B _RL , and both outputs. Ports 13 ₁ and 1
A brake fluid pressure control device 15 is provided between the fluid pressure passages 12 ₁ and 12 ₂ individually connected to 3 ₂ .

The brake fluid pressure control device 15 is provided for the left front wheel.
Wheel brake B_FL, Wheel brake B for the right rear wheel_RR, Front right
Wheel brake B for wheels_FRAnd wheel brake B for the left rear wheel_RL
Normally open solenoid valve V as four valve means individually corresponding to
_OFL, V_ORR, V_OFR, V_{OR L}And each normally open solenoid valve V
_OFL~ V_ORL4 checkers connected in parallel to
Ku valve 17_FL, 17_RR, 17_FR, 17_RLAnd each wheel
Rake B_FL~ B_RL4 normally closed solenoid valves individually compatible with
V_CFL, V_CRR, V_CFR, V_CRLAnd the wheel shake for the left front wheel
Key B_FLAnd wheel brake B for the right rear wheel_RRSide and right
Front wheel brake B_FRAnd wheel brake B for the left rear wheel
_RLA pair of reservoirs 19 individually corresponding to the sides₁，
19₂And both reservoirs 19₁, 19₂Intake valve 20₁，
20₂A pair of reciprocating plunger plugs connected via
Pump 21₁, 21₂And both plunger pumps 21₁, 2
1₂Common motor 22 and both plunger pumps
21 ₁, 21₂Discharge valve 23₁, 23₂Connected through
A pair of dampers 24₁, 24₂And the Master Sillin
DA M output port 13₁, 13₂Hydraulic lines that are individually connected to
12₁, 12₂And both the dampers 24₁, 24₂Between
Orifice 25 that is respectively interposed₁, 25₂And
E, each normally open solenoid valve V_OFL~ V_ORLAnd each normally closed electromagnetic
Valve V_CFL~ V_CRLDemagnetization and excitation of the electronic control unit 26
Is controlled by the switch. Normally open solenoid valve V_OFLIs the
One output port 13 of the star cylinder M₁Hydraulic pressure
Road 12₁And wheel brake B for the left front wheel_FLInterposed between
Normally open solenoid valve V_ORRIs the hydraulic passage 12₁And the right rear wheel
Wheel brake B_RRProportional pressure reducing valve 14 connected to_RWith
A normally open solenoid valve V installed between_OFRIs the master cylinder
The other output port 13 of M₂Hydraulic line 12 connected to₂And right
Front wheel brake B_FRIt is installed between the
Valve V_ORLIs the hydraulic passage 12₂And wheel brakes for the left rear wheel
B_RLProportional pressure reducing valve 14 connected to_LIs installed between
It Check valve 17_FL~ 17_RLIs the corresponding wheel
Rake B_FL~ B_RLAllows only the flow of brake fluid from
Each normally open solenoid valve V_OFL~ V_ORLIn parallel with
Will be continued.

The normally closed solenoid valve V _CFL is provided between the wheel brake B _FL for the left front wheel and the reservoir 19 ₁ and is a normally closed solenoid valve V _CRR.
Is between the proportional pressure reducing valve 14 _R and the reservoir 19 ₁ , the normally closed solenoid valve V _CFR is between the front wheel brake B _FR and the reservoir 19 ₂ , and the normally closed solenoid valve V _CRL is the proportional pressure reducing valve 1.
4 _L and the reservoir 19 ₂ , respectively.

According to the brake fluid pressure control device 15 as described above, the normally open solenoid valves V _{OFL to} V _ORL are opened in the demagnetized state during the normal braking in which the wheels are not likely to be locked. In addition, each normally closed solenoid valve V _CFL ~ V
_CRL is demagnetized and closed. Therefore, the braking fluid pressure output from _one output port 13 ₁ of the master cylinder M acts on the wheel brake B _FL for the front left wheel via the _normally open solenoid valve V _OFL , and at the same time as the _normally open solenoid valve V _ORR and proportional. Wheel brake B for the right rear wheel via the pressure reducing valve 14 _R
The braking fluid pressure acting on _RR and output from the other output port 13 ₂ of the master cylinder M is the _normally open solenoid valve V _OFR.
It acts on the front wheel brake B _FR for the right front wheel through the _normally open solenoid valve V _ORL and the proportional pressure reducing valve 14 _L , and acts on the rear wheel brake B _RL for the left rear wheel.

At the time of anti-lock control when the wheel is about to enter the locked state during braking, the normally open type solenoid valve corresponding to the wheel that is about to enter the locked state among the _normally open solenoid valves V _{OFL to} V _ORL. Is excited to close the valve, and at the same time, of the normally closed solenoid valves V _{CFL to} V _CRL , the normally closed solenoid valves corresponding to the wheels are excited and opened. Then, a part of the brake fluid pressure is released to the reservoir 19 ₁ or 19 ₂ and reduced. When the brake fluid pressure is maintained, the normally open solenoid valves V _{OFL to} V _ORL are excited to close the valve, and the normally closed solenoid valves V _{CFL to} V _CRL are demagnetized to maintain the closed state. Of course, when increasing the braking fluid pressure, deenergize the normally open solenoid valves V _{OFL to} V _ORL and open them, and demagnetize the normally closed solenoid valves V _{CFL to} V _CRL to keep them closed. Good.

A motor 22 which drives a pair of plunger pumps 21 ₁ and 21 ₂ in common is operated during the antilock control, and the reservoirs 19 ₁ and 19 2 are operated.
_The brake fluid released to ₂ is the plunger pump 21 ₁ ,
21 ₂ to dampers 24 ₁ and 24 ₂ and orifice 25
₁ , 25 ₂ through the normally open solenoid valves V _{OFL to} V _ORL , that is, the hydraulic pressure passages 12 ₁ , which are connected to the master cylinder M.
It is returned to the 12 ₂ side. Therefore, the reservoirs 19 ₁ , 19
_The depression amount of the brake pedal P in the master cylinder M does not increase by the amount released to _2, and the pulsation of the brake fluid sent from the plunger pumps 21 ₁ and 21 ₂ is the dampers 24 ₁ and 24 ₂ and the orifice 2.
It is damped by the action of 5 ₁ , 25 ₂ , and the pulsation of the brake pedal P is damped.

Whether the wheels are likely to enter the locked state in the electronic control unit 26 which controls the demagnetization / excitation of the normally open solenoid valves V _{OFL to} V _ORL and the normally closed solenoid valves V _{CFL to} V _CRL . Wheel speed sensors 27 _FL , 27 _RR , 27 _FR , which individually detect the wheel speed of each wheel in order to judge whether
27 _RL detection signal is input, and a detection signal of a handbrake detection sensor 29 that detects whether or not the handbrake lever 28 is operated is also input. Further, when in the antilock control state, the electronic control unit 26
An alarm 30 such as a lamp activated by is connected to the electronic control unit 26.

In FIGS. 2 and 3, four _normally open solenoid valves V _OFL , V constituting the brake fluid pressure control device 15 are shown.
_ORR , V _OFR , V _ORL and 4 check valves 17 _FL , 1
7 _RR , 17 _FR , 17 _RL and 4 normally closed solenoid valves V _CFL ,
V _CRR , V _CFR and V _CRL, and a pair of reservoirs 19 ₁ and 1
9 ₂ , a pair of intake valves 20 ₁ , 20 ₂ , a pair of plunger pumps 21 ₁ , 21 ₂ , a motor 22, a pair of discharge valves 23 ₁ , 23 _2, and a pair of dampers 24 ₁ , 24.
₂ and the pair of orifices 25 ₁ and 25 ₂ are arranged in a block-shaped metal base 34.

Four _normally open solenoid valves V _OFL , V _ORR , V
_OFR and V _ORL have half of them on one surface of the base 34 (see FIG. 2).
And the base body 3 so as to project from the left end surface of FIG.
4 normally closed solenoid valves V _CFL , V _CRR , V
_{The CFR} and V _CRL are fitted to the base body 34 with their half portions protruding from the one surface, and both reservoirs 19 ₁ ,
19 ₂ and both dampers 24 ₁ and 24 ₂ are housed and arranged in the base 34 from the one surface side. Moreover, the normally open solenoid valves V _OFL , V _ORR , V _{OF R} , and V are provided on the one surface of the base body 34.
_ORL , normally closed solenoid valves V _CFL , V _CRR , V _CFR , V _CRL ,
Both reservoirs 19 ₁ and 19 ₂ and both dampers 24 ₁ and 24
_A cover 35 made of synthetic resin is fastened so as to cover ₂ and the like, and the base 34 is supported by support plates 36a, 36b fixed to a vehicle body (not shown) via mount means 37.

A pair of plunger pumps 21₁, 21
₂Is each normally open solenoid valve V_OFL, V_{OR R}, V_OFR, V_ORL
Array position and each normally closed solenoid valve V_CFL, V_CRR，
V_CFR, V _CRLThe operating axis is coaxial with the array position of
Then, it is built in the base 34.

One of the plunger pumps 21 ₁ has a base 3
4, a pump housing 38 fitted and fixed to the pump housing 4, and a plunger 40 slidably fitted to the pump housing 38 and forming a pump chamber 39 between the pump housing 38 and the plunger 40. Moreover, the plunger 40 is provided with a suction chamber 41 which is constantly in communication with the reservoir 19 ₁ (see FIG. 1), and the suction valve 20 which opens when the volume of the pump chamber 39 increases and communicates the suction chamber 41 with the pump chamber 39. ₁ is disposed in the pump chamber 39. Further, in the pump housing 38, a discharge chamber 42 that is in constant communication with the damper 24 ₁ (see FIG. 1) is provided.
Is provided, and the discharge valve 23 ₁ that opens when the volume of the pump chamber 39 is reduced to communicate the pump chamber 39 with the discharge chamber 42 ₁
Are arranged in the discharge chamber 42.

The other plunger pump 21 _2, a built-in suction valve 20 ₂ and the discharge valve 23 ₂ (see FIG. 1), the plunger pumps 21 ₁ has the same configuration as the both plunger pumps 21 _1, 21 ₂ is a bottomed storage provided in the base body 34 by opening the projecting ends of the plungers 40 ... From the pump housing 38 ... to the other surface of the base body 34 (the right end surface in FIGS. 2 and 3). It is arranged on the base 34 so as to face the hole 43.

The motor 22 is used for both the plunger pumps 2
The output shaft 44 has an axis perpendicular to the working axes of 1 ₁ and 21 ₂ and is projected into the housing hole 43 and is fastened to the other surface side of the base body 34. A bearing 45 as a cam is attached to an eccentric shaft portion 44a provided in the portion, and the tip ends of the plungers 40 of both plunger pumps 21 ₁ and 21 ₂ are brought into contact with the outer surface of the outer ring of the bearing 45. Since the eccentric shaft portion 44a has an axis that is eccentric from the rotation axis of the output shaft 44, the distance from the rotation axis of the output shaft 44 to the outer surface of the outer race of the bearing 45 differs in the circumferential direction. The bearing 45 performs a cam action in accordance with the rotation of the above, and reciprocating power is alternately applied to the plungers 40 of both the plunger pumps 21 ₁ and 21 ₂ .

Referring to FIGS. 4 and 5 together, the motor housing 46 of the motor 22 is formed in a bottomed cylindrical shape with the base 34 side open, and the motor housing 46 has an open end at the open end. A flange 47 that is formed in a substantially triangular shape and projects outward is integrally provided. Also the flange 47
In this case, a bracket 48 formed in a triangular flat plate shape substantially corresponding to the outer shape of the flange 47 is superposed so as to close the opening end of the motor housing 46. Thus, the flange 47 and the bracket 48 which are overlapped with each other are
In three apex angle of the substantially triangular them 47 and 48 constituting the screw member 49 _1, 49 _2, 49 ₃ by the substrate 3
The bosses 50 ₁ , 50 ₂ , 50 for screwing the screw members 49 ₁ to 49 ₃ into the other surface of the base 34 on the other surface of the base 34. ₃ is projected.

Referring also to FIG. 6, a cylindrical receiving portion 53 coaxial with the housing hole 43 is provided on the other surface of the base body 34, and the cylindrical receiving portion 53 is provided substantially at the center of the bracket 48.
The cylindrical fitting tubular portion 48a that fits in the is integrally provided. Moreover, the output shaft 44 is inserted into the housing hole 43 with the bearing 51 interposed between the output shaft 44 and the fitting tubular portion 48a, and the fitting tubular portion 48a is provided at the inner edge of the tip end portion of the cylindrical receiving portion 53.
An annular seal member 52 that is in contact with the outer edge of the base end portion of the entire circumference is attached.

Further, the bracket 48 is integrally provided with a pair of vibration suppressing arms 54 ₁ and 54 ₂ extending outwardly along the operation axes of the plunger pumps 21 ₁ and 21 ₂ .
On the other surface of the base 34, contact support portions 55 ₁ and 55 ₂ for contacting and supporting both vibration suppressing arms 54 ₁ and 54 ₂ are provided along the output shafts of the plunger pumps 21 ₁ and 21 _2. Four
4 are formed integrally on both sides of the output shaft 44 in an arc shape centering on the rotation axis of the output shaft 44. Moreover, the contact support parts 55 ₁ , 55
The protrusion amount of ₂ is that the bracket 48 has a plurality of bosses 50 ₁
Vibration restraining arms 54 ₁ , 54 when tightened to ~ 50 _3.
It is desirable to set _{2 so} that a preload is applied.

[0026] the inner surface side of the bracket 48, the central portion of the hole 56a for rotatably through an output shaft 44 is formed into a dish shape to be fitted to the open end side of the motor Howe <br/> Managing 46 An insulating member 56 made of synthetic resin is abutted on the insulating member 56. The insulating member 56 abuts on both vibration suppressing arms 54 ₁ and 54 ₂ of the bracket 48 and extends outward from the motor housing 46. arms 57 _1, 57 ₂ are integrally provided, the arms 57 _1, 57 substantially L-shaped engaging portion 58 ₁ which are provided at the distal end of the _2, 58 ₂ vibration suppressing arm 5
The tips of 4 ₁ and 54 ₂ are engaged. Both arms 5
A pair of cutout portions 46a are provided at the opening end of the motor housing 46 so that the vibration control arms 7 ₁ , 57 ₂ can be extended to the outside of the motor housing 46 while being brought into contact with both vibration suppressing arms 54 ₁ , 54 _2. The flange 47 is also provided with a pair of notches 47a, 47a. In addition, the notch portion 46a ...
In order to prevent water from entering into the motor housing 46 from 47a, 47a, an annular seal member 59 that contacts the inner surface of the motor housing 46 on the inner side in the axial direction than the cutout portions 46a and the inner surface of the bracket 48 are provided. The ring-shaped sealing member 60 that comes into contact with the insulating member 56 is mounted.

Both arm portions 57 ₁ , which are integrated with the insulating member 56,
One of the terminals 57 _{1 of} 57 ₂ is integrally provided with a connector 62 that exposes the connection terminals 61, 61 communicating with the inside of the motor housing 46 via a conductor (not shown) embedded in the insulating member 56. The connector 62 includes both vibration suppressing arms 54.
_1, 54 ₂ of one 54 ₁ to contact, it becomes supported by it.

[0028] Next, to explain the action of this embodiment, a pair of contact support portions 55 provided on the base 34 on opposite sides of the output shaft 44 along both plunger pumps 21 _1, 21 ₂ of the working axis _1, 55 ₂ The bracket 48 of the motor 22 is supported by the two plunger pumps 21.
It is possible to increase the support strength of the motor 22 in the direction along the operating axis direction of ₁ , 21 ₂ . Moreover, the bracket 48 has a pair of vibration suppressing arms 54 ₁ , which extend outwardly on both sides along the operating axes of the plunger pumps 21 ₁ , 21 ₂ .
54 ₂ is integrally provided, and both vibration suppressing arms 54 ₁ and 54 ₂
Is abutted against and supported by the contact support portions 55 ₁ and 55 ₂ ,
Bracket 4 at a position relatively distant from the axis of output shaft 44
8 is supported by the contact support portions 55 ₁ and 55 ₂ , and it is possible to further enhance the support strength of the motor 22 in the direction along the operation axis direction of both plunger pumps 21 ₁ and 21 ₂ . Therefore, both plunger pumps 21 ₁ ,
21 the vibration of the motor 22 along the _second operating axis direction can be effectively suppressed, it becomes possible to prevent the occurrence of accompanying operating noise in the vibration, accompanied output shaft vibrations 44 It is possible to avoid the occurrence of the sway of the bearing 45 and stabilize the strokes of the plungers 40 in the plunger pumps 21 ₁ and 21 ₂ to maintain high pump efficiency.

Moreover, in order to suppress the above vibration, the base body 34
It is not necessary to make the surface of the side of the motor 22 on the side of the motor 22 flat, and a plurality of boss portions 50 ₁ to 50 for fastening the bracket 48.
₃ and the contact support portions 55 ₁ and 55 ₂ that come into contact with both the vibration suppression arms 54 ₁ and 54 ₂ may be provided so as to project from the base body 34. Therefore, the surface of the base body 34 on the motor 22 side has an uneven shape. It is possible to thin out unnecessary portions, which contributes to reduction in size and weight.

Further, the connector 62 has the both vibration suppressing arms 5.
The support strength of the connector 62 can be improved because it abuts and is supported by _one of the ones 4 ₁ and 54 ₂ and the connector 62 is prevented from being damaged when connecting, and the assemblability is improved. Can be improved and the connector 6
Since the vibration of the 2 itself is also suppressed, the connector 6 due to the vibration
It is possible to prevent the disconnection of 2 and the occurrence of poor contact.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the claims. It is possible to do.

[0032]

As described above, according to the invention described in claim 1 , a plurality of boss portions for fastening the brackets are provided on the surface of the base body on the motor side, and the operating axes of both plunger pumps are provided.
By increasing the motor support strength in the direction,
A pair of abutting support portions that abut the bracket only on both sides of the output shaft along the operating axis to suppress the vibration of the motor.
It is collision set, the amount of protrusion of the pair of abutting support portion, bracket
To the bracket when it is fastened to multiple bosses.
Since the load is set so that the motor-side surface of the base body has an uneven shape to allow unnecessary parts to be thinned out, and the direction along the operating axis direction of both plunger pumps The support strength of the motor can be increased, the vibration of the motor along the operation axis direction of both plunger pumps can be effectively suppressed, and it is possible to prevent the generation of the operation noise due to the above-mentioned vibration and the plunger pump. The stroke can be stabilized and high pump efficiency can be maintained.

According to a second aspect of the present invention, in addition to the structure of the first aspect of the invention, the bracket extends outwardly on both sides along the operation axis of both plunger pumps and has a contact support portion. Since a pair of vibration suppressing arms that come into contact with each other are integrally provided, the brackets are supported by the two contact support portions at a position relatively distant from the axis of the output shaft, so that the plunger pump operates in the operation axis direction. The supporting strength of the motor in the along direction can be further increased.

According to the third aspect of the invention, in addition to the configuration of the second aspect of the invention, the connector facing the connection terminal in the motor housing is brought into contact with one of the vibration suppressing arms. Since it is supported, it is possible to improve the support strength of the connector, avoid the damage of the connector at the time of connection as much as possible, and improve the assemblability. It is possible to prevent connection disconnection and occurrence of poor contact.

[Brief description of drawings]

FIG. 1 is a hydraulic circuit diagram of a vehicle brake device.

FIG. 2 is a side view of a brake fluid pressure control device.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a view on arrow 4 of FIG.

5 is a sectional view taken along line 5-5 of FIG.

FIG. 6 is a view taken along the line 6-6 of FIG.

[Explanation of symbols]

15 ... Brake fluid pressure control device 21 ₁ , 21 ₂ ... Plunger pump 22 ... Motor 34 ... Base 44 ... Output shaft 45 ... Bearing 46 as cam ... Motor housing 48 ... Brackets 50 ₁ , 50 ₂ , 50 ₃ ... Boss parts 54 ₁ , 54 ₂ ... Vibration suppressing arms 55 ₁ , 55 ₂ ... Contact support parts 61 ... Connection terminals 62 ... Connector B _FL , B _RR ; B _FR , B _RL ... Wheel brake M ... Master cylinder

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 7-156774 (JP, A) Japanese Patent Laid-Open No. 6-255474 (JP, A) Actual Opening Flat 6-60268 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) B60T 8/34

Claims (3)

(57) [Claims] 1. Wheel brakes (B _FL , B _RR ; B _FR ,
B _RL ) and a pair of reciprocating plunger pumps (2) for circulating the brake fluid to the master cylinder (M) side.
1 ₁ , 21 ₂ ) are incorporated in the base body (34) with their operating axes being coaxial, and both plunger pumps (21 ₁ , 2 2) are
A bracket (48) provided on the motor housing (46) of a single motor (22) having an output shaft (44) orthogonal to the working axis of (1 ₂ ) is fastened to the base body (34),
The output shaft (44) has two plunger pumps (2
In the brake fluid pressure control device provided with a cam (45) for giving a driving force to 1 ₁ , 21 ₂ ) , a bracket (48) for fastening the bracket (48) to the surface of the base body (34) on the motor (22) side . Multiple bosses (50 ₁ , 50
₂ , 50 ₃ ) and both plunger pumps (21 ₁ , 2)
Support of motor (22) in the direction along the working axis of 1 ₂ )
Increases strength and suppresses vibration of the motor (22) along the same direction
On both sides of the output shaft (44) along the operating axis to
A pair of contact support parts (5
5 _1, 55 ₂₎ and are butt set, the amount of projection of the pair of contact support portions (55 _1, 55 _2),
The bracket (48) has a plurality of bosses (50 ₁ , 50 ₂ ,
The bracket (48) when fastened to the bracket ( 50 ₃ ).
Characterized by being set to the extent that a load is applied ,
Brake fluid pressure control device. 2. The bracket (48) extends outward on both sides along the operation axis of the plunger pumps (21 ₁ , 21 ₂ ) and abuts against the abutment support portions (55 ₁ , 55 ₂ ), respectively. The brake fluid pressure control device according to claim ₁ , wherein a pair of vibration suppressing arms (54 ₁ , 54 ₂ ) are integrally provided. 3. The bracket (48) is brought into contact with the inner surface side of the bracket (48).
The insulating member (56) includes a pair of brackets (48).
The motor housing is brought into contact with the vibration suppressing arms (54 ₁ , 54 ₂ ).
Ring (46) extending outwardly from the arm (5
7 ₁ , 57 ₂ ) are integrally provided, and both arm portions (5
7 ₁ , 57 ₂ ) L-shaped members provided at the tips respectively
The stoppers (58 ₁ , 58 ₂ ) have vibration suppressing arms (54 ₁ , 5 ₂ ).
A connector (62) which is engaged with the tip of 4 ₂ ) and faces a connection terminal (61) communicating with the inside of the motor housing (46).
The brake fluid pressure control device according to claim 2, wherein the brake fluid pressure control device is in contact with and supported by one of both vibration suppressing arms (54 ₁ , 54 ₂ ).