JP3464739B2 - Waterproof structure of reservoir in hydraulic pressure control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [0001] The present invention relates to a substrate,
Into the reservoir hole with a bottom provided in the base.
A reservoir chamber is formed between the closed end of the hole and slidable.
Atmospheric communication chamber between the piston to be fitted and the piston
Having a ventilation hole communicating with the atmosphere communication chamber
A plug member attached to the open end of the reservoir hole, and a reservoir chamber
Communication with the atmosphere by urging the piston in a direction to reduce the volume of
The return spring stored in the chamber and the intrusion of water into the air communication chamber
Prevent and call the air communication chamber through the vent
Allow suction and place outside the plug member at the open end of the reservoir hole.
A reservoir having a fitted sealing member;
Multiple electromagnetics mounted on the base with a part protruding from the side
A hydraulic control system comprising: a valve;
Reservoir to prevent water and dust from entering the room
Related to waterproof structure of bus. [0002] 2. Description of the Related Art Conventionally, such a waterproof structure has been disclosed in Japanese Utility Model Laid-Open No. 6-4.
No. 0402, which is already known.
Constitutes a one-way valve in cooperation with the plug member or the base.
The seal member engages the shaft provided at the center with the plug member
The plug is fixed to the outside of the plug member.
You. [0003] SUMMARY OF THE INVENTION However, the prior art described above
In this case, the sealing member is exposed to the outside,
If the valve is opened, the one-way valve is opened.
Water enters the air communication chamber through the plug member.
And the waterproof function is incomplete. [0004] The present invention has been made in view of such circumstances.
And ensure that water does not enter the reservoir air communication chamber.
Reservoir in hydraulic pressure control device that can be prevented indeed
It is intended to provide a waterproof structure for the bus. [0005] [MEANS FOR SOLVING THE PROBLEMS]
In the present invention, an opening is provided on one side of a base, and the base is provided on the base.
Between the closed bottomed reservoir hole and the closed end of the reservoir hole.
Piston that forms a reservoir chamber and is slidably fitted
And an air communication chamber is formed between the piston and the piston.
Open end of reservoir hole with vent hole communicating with air communication chamber
To reduce the volume of the plug member and the reservoir chamber
The piston is urged in the direction to return to the atmosphere communication chamber.
The spring prevents water from entering the air communication chamber and
The plug is allowed to allow breathing of the air communication chamber through the vent hole.
Seal part fitted to the open end of the reservoir hole outside the member
And a part protruding from one side of the base
And a plurality of solenoid valves mounted on the substrate.
In the control device, one side of the base is covered with a plurality of solenoid valves.
In the box-shaped part, a seal
Covering the reservoir with projections to prevent
The cover, which consists of a skirt and
One end is communicated with the vent hole of the plug member, and
Ventilation with the other end open on the side opposite to one side of the substrate in the shape
A tube is provided on the sealing member. [0006] Embodiments of the present invention will be described below.
A description will be given based on one embodiment of the present invention shown in the accompanying drawings. FIGS. 1 to 8 show an embodiment of the present invention.
FIG. 1 is a hydraulic circuit diagram of a vehicle brake device,
FIG. 2 is a side view of the hydraulic control device, and FIG.
4 is a cutaway side of the hydraulic pressure control device along the line 4-4 in FIG.
FIG. 5 is a cutaway view of the hydraulic pressure control device along the line 5-5 in FIG.
FIG. 6 is a side view, and FIG. 6 is a bottom view of the cover as viewed from the direction of arrow 6 in FIG.
FIG. 7 is a partial sectional view of the reservoir along the line 7-7 in FIG.
FIG. 8 is a plan view of the seal member viewed from the direction of arrow 8 in FIG.
FIG. First, in FIG. 1, a tandem type master serial
M is a braking fluid pressure corresponding to the depression of the brake pedal P.
A pair of output ports 13 for outputting₁, 13_TwoWith
Left front wheel brake B_FL, Right rear wheel brake
B_RRProportional pressure reducing valve 14 connected to_R, Right front wheel
B_FR, And left rear wheel brake B_RLConnected to
Proportional pressure reducing valve 14_LAnd the two output ports 13₁, 1
3_TwoHydraulic path 12 connected to₁, 12_TwoBetween and hydraulic
A control device 15 is provided. The hydraulic pressure control device 15 is provided with a wheel block for the front left wheel.
Rake B_FL, Right rear wheel brake B_RR, Right front wheel
Brake B_FRAnd left rear wheel brake B_RLIndividually
Corresponding four normally open solenoid valves V_OFL, V_ORR, V_OFR,
V_ORLAnd each normally open solenoid valve V _OFL~ V_ORLAverage
Four check valves 17 connected to the row_FL, 17_RR, 17
_FR, 17_RLAnd each wheel brake B_FL~ B_RLIndividually
Corresponding four normally closed solenoid valves V_CFL, V_CRR, V_CFR,
V_CRLAnd the left front wheel brake B_FLAnd right rear wheel car
Wheel brake B_RRSide and right front wheel brakes B_FRYou
And left rear wheel brake B_RLEach side individually
Pair of reservoirs 19₁, 19_TwoAnd both reservoirs 19
₁, 19_TwoSuction valve 20₁, 20_TwoConnected via
A pair of reciprocating plunger pumps 21₁, 21_TwoAnd both
Plunger pump 21₁, 21_TwoSingle motor common to
22 and both plunger pumps 21₁, 21_TwoDischarge valve 2
3 ₁, 23_TwoOf dampers 24 connected via₁,
24_TwoAnd the output port 13 of the master cylinder M₁,
Thirteen_TwoHydraulic path 12 connected to₁, 12_TwoAnd said
Both dampers 24₁, 24_TwoOrifices interposed between each
This 25₁, 25_TwoAnd each normally open solenoid valve V_OFL~
V_ORLAnd each normally closed solenoid valve V_CFL~ V_CRLDemagnetization / excitation
The magnet is switched and controlled by the electronic control unit 26. Normally open solenoid valve V_OFLIs the master cylinder M
One output port 13 of₁Hydraulic passage 12 connected to₁And left front
Wheel brake B_FLNormally open solenoid valve
V_{OR R}Is the hydraulic passage 12₁And right rear wheel brake B
_RRProportional pressure reducing valve 14 connected to_RInterposed between
Open solenoid valve V_OFRIs the other output port of the master cylinder M.
Port 13_TwoHydraulic passage 12 connected to_TwoAnd right front wheel breaker
Key B_FRAnd a normally open solenoid valve V_ORLIs
Hydraulic path 12_TwoAnd left rear wheel brake B_RLConnected to
Proportional pressure reducing valve 14_LIt is interposed between. Also check valve
17_FL~ 17_RLIs the corresponding wheel brake B_FL~ B_RLOr
Each normally-open type
Magnetic valve V_OFL~ V_ORLConnected in parallel. Normally closed solenoid valve V_CFLIs the left front wheel brake
Key B_FLAnd reservoir 19₁Between, normally closed solenoid valve V_CRR
Is the proportional pressure reducing valve 14_RAnd reservoir 19₁Between, normally closed type
Solenoid valve V_CFRIs the right front wheel brake B_FRAnd reservoir
BA19_TwoIn between, normally closed solenoid valve V_CRLIs a proportional pressure reducing valve 1
4_LAnd reservoir 19_TwoEach is interposed between them. According to such a hydraulic pressure control device 15,
During normal braking where the wheels cannot lock up
Is the normally open solenoid valve V_OFL~ V_ORLIs in a demagnetized state
Valves are open and each normally closed solenoid valve V_CFL~ V_CRLDisappears
The valve is closed in the magnetic state. Therefore Master Syrin
One output port 13 of DA M₁Brake pressure output from
Is a normally open solenoid valve V_OFLThrough the left front wheel for wheel brake
B_FLNormally open solenoid valve V_ORRAnd proportional
Pressure reducing valve 14_RVia the rear right wheel brake B_RRActs on
And the other output port 13 of the master cylinder M_TwoOr
The braking fluid pressure output from the_OFRThrough
Wheel brake B for right front wheel_FRAnd normally open type
Magnetic valve V_ORLAnd proportional pressure reducing valve 14_LThrough the left rear wheel for the car
Wheel brake B_RLAct on. [0013] The wheel is likely to enter the locked state during braking
When the anti-lock control is activated, the normally open solenoid valve
V_OFL~ V_ORLWheels that are about to enter a locked state
The normally open solenoid valve corresponding to
Normally closed solenoid valve V_CFL~ V_CRLCorresponding to the above wheels
Energizes and opens the normally closed solenoid valve. Then, the brake fluid
Part of the pressure is in reservoir 19₁Or 19_TwoEscaped to
The pressure will be reduced. Also, when maintaining brake fluid pressure
Is a normally open solenoid valve V_OFL~ V_ORLWhen the valve is closed by exciting
Both are normally closed solenoid valves V_CFL~ V_CRLDemagnetized and valve closed
To increase the brake fluid pressure.
Solenoid valve V_OFL~ V_ORLDegauss and open and normally close
Type solenoid valve V_CFL~ V_CRLTo keep the valve closed.
I just need. A pair of plunger pumps 21₁, 21_TwoTo
The motor 22 that is commonly driven is used during the antilock control.
The reservoir 19₁, 19
_TwoHydraulic fluid released to the plunger pump 21₁, 21
_TwoFrom damper 24₁, 24_TwoAnd orifice 25₁,
25_TwoThrough each normally open solenoid valve V_OFL~ V_ORLUpstream of
That is, hydraulic passage 12₁, 12_TwoIs returned to. Therefore
Observer 19₁, 19_TwoAs much as the master cylinder
The amount of depression of the brake pedal P in M increases.
And the plunger pump 21₁, 21_TwoSent from
The pulsation of the discharged hydraulic fluid is₁, 24_TwoAnd e
Rifice 25₁, 25_TwoAttenuated by the action of
The pulsation of the rake pedal P is attenuated. Each normally open solenoid valve V_OFL~ V_ORLAnd each time
Closed solenoid valve V_CFL~ V_CRLTo control demagnetization / excitation of magnets
The control unit 26 has
The wheel speed of each wheel to determine
Separately detected wheel speed sensor 27_FL, 27_RR, 27_FR,
27_RLInput signal and the hand brake
Handbuffer that detects whether the killer 28 has been operated
The detection signal of the rake detection sensor 29 is input, and
When the electronic control unit 26 is in the
The alarm 30 such as a lamp activated by the electronic control
Connected to unit 26. Four normally open types constituting the hydraulic pressure control device 15
Solenoid valve V_OFL, V_ORR, V_OFR, V _ORLAnd four che
Check valve 17_FL, 17_RR, 17_FR, 17_RLAnd four normally closed
Type solenoid valve V_CFL, V_CRR, V_CFR, V_CRLAnd a pair of
Observer 19₁, 19_TwoAnd a pair of suction valves 20₁, 20_Two
And a pair of plunger pumps 21₁, 21_TwoAnd the motor
22 and a pair of discharge valves 23₁, 23_TwoAnd a pair of dampers
24₁, 24_TwoAnd a pair of orifices 25₁, 25_TwoWhen
Is disposed on the base 34 shown in FIG. The base 34 is made of gold such as aluminum alloy.
Is formed in a block shape by the genus, one side of which
The surface 34a is oriented vertically so that the vehicle body
(Not shown).
Are supported via port means 33. Referring also to FIG. 3, one side of the base 34 is shown.
34a has four fitting recesses 35._FL, 35_RR, 35_RL,
35_FRAnd four fitting recesses 36_FL, 36_RR, 36_RL, 3
6_FRAre provided in parallel up and down. In addition, fitting recess 35
_FL, 36_FLBottomed damper hole 37 corresponding to₁And mating recess
Part 35_RR, 36_RRBottomed reservoir hole 38 corresponding to
₁And fitting recess 35_RL, 36_RLBottomed reservoir corresponding to
Hole 38_TwoAnd fitting recess 35_FR, 36_FRBottom corresponding to
Damper hole 37_TwoAnd each fitting recess 35_FL~ 35_FR, 3
6_FL~ 36_FRBelow and parallel to their alignment direction
And is provided on one side surface 34a. Further fitting recess 3
5_FL, 35_RR, 36_FL, 36_RRMeat in the position surrounded by
Recess 39 and fitting recess 35_RR, 35_RL, 36_RR, 36_RL
The lightening recess 40 at the position surrounded by_RL,
35_FR, 36_RL, 36_FRLightening recess 4 at the position surrounded by
1 and fitting recess 36_RR, 36_RLAnd reservoir hole 3
8₁, 38_TwoThe lightening recess 42 at the position surrounded by
It is provided on the surface 34a. Referring to FIG. 4 and FIG.
4 has four normally open solenoid valves V_OFL, V_ORR, V_ORL,
V_OFRAnd four normally closed solenoid valves V_CFL, V_CRR,
V_CRL, V _CFRAnd a pair of reservoirs 19₁, 19_TwoWhen,
A pair of dampers 24₁, 24_TwoIs mounted from one side 34a side.
Be worn. The motor 22 is mounted on the other side 34b of the base 34.
A pair of plunges mounted and driven by the motor 22
Pump 21₁, 21_TwoIs built in the base 34. Normally open solenoid valve V_OFL, V_ORR, V_ORL, V
_OFROf the valve housings 43.
The guide cylinder 43a provided on the base 3
a so as to protrude from the corresponding fitting recess 35._FL,
35_RR, 35_RL, 35_FRAre respectively fitted and fixed.
Normally closed solenoid valve V_CFL, V_CRR, V_CRL, V_CFRValve
The housings 44 are provided on the valve housings 44.
The projected guide tube 44a is projected from the one side surface 34a.
The corresponding fitting recess 36_FL, 36_RR, 36_RL, 3
6_FRAre respectively fitted and fixed. The guide cylinder 4 of the valve housing 43
3a... And the guide cylinder 44a of the valve housing 44.
Are wound around bobbins 46 on which coils 45 are wound, respectively.
Each of the coils 45.
The bottles 46 are embedded in a mold 47 made of synthetic resin.
All normally open solenoid valves V_OFL, V_ORR,
V_ORL, V_OFRAnd all normally closed solenoid valves V_CFL, V
_CRR, V_CRL, V_CFRAnd a common coil unit 48
Unitized. In addition, each part is
Conductor support provided with conductors 49 connected to the il 45.
The member 50 is also embedded. In the molding section 47, each bobbin 46
Are wound around those bobbins 46.
Of the guide cylinders 43a, 44a surrounding the
Magnetic path forming frame 51 for magnetically coupling between the end and the base end
… Is attached. The magnetic path forming frame 51 is a guide cylinder.
The closed end through which the base ends of 43a and 44a can be inserted is
Corresponding to the coil 45 of the mold part 47
A cylindrical magnetic path tube 51a having a bottom and surrounding the portion, and a guide tube
A magnetic path plate 51b for fitting the distal ends of 43a and 44a
Are mutually connected. The molding part 47 is provided with a cover
The cover 6 is provided integrally with the main body 68.
Reference numeral 7 denotes a base covering almost one side 34a of the base 34 almost entirely.
Fastened to the body 34. That is, one side 34a of the base 34
As shown in FIG._FL, 35_RRAmong
Outer side and fitting recess 35_RL, 35_FRBetween the outside
Each screw hole 60₁, 60₁Are provided and fitted
Joint recess 36_FL, 36_RR, Damper hole 37₁And reservoir
Hole 38₁And the fitting recess 36_RL, 3
6_FR, Damper hole 37_TwoAnd reservoir hole 38_TwoSurrounded by
Screw hole 60_Two, 60_TwoIs provided for each
The cover 67 is provided with the screw holes 60 ₁, 60₁, 6
0_Two, 60_TwoThe fastening bolts 61 that are screwed into
The base 34 is fastened to one side surface 34a. The reservoir 19_TwoIs, as shown in FIG.
Server hole 38_TwoA reservoir chamber 52 is formed with the closed end of the
And the reservoir hole 38_TwoFixed to slidably fit
An air communication chamber 54 is formed between the piston 53 and the piston 53.
Forming reservoir hole 38_TwoPlug member 5 fitted to the open end of
5 and contracted between the plug member 55 and the piston 53
A return spring 56 housed in the atmosphere communication chamber 54;
5 outside the reservoir hole 38_TwoSeat fitted to the open end of
And a screw member 57. Reservoir hole 38_TwoAt the open end of the plug member 5
5 is fitted with a retaining ring 58 which engages from the outside on the periphery.
The retaining ring 58 allows the stopper member 55 to have a reservoir hole.
38 _TwoIs prevented from leaving. The center of the plug member 55
A ventilation hole 59 communicating with the atmosphere communication chamber 54 is formed in the portion.
You. Reservoir 19₁Is the reservoir 19_TwoWhen
The reservoir hole 38 has basically the same configuration.₁Stored in
Will be arranged. Damper 24_TwoIs, as shown in FIG.
Hole 37_TwoThe opening end of the
The plug 65 is provided with a damper hole 37._TwoOpening
The end is fitted to the damper hole 37_TwoPlug on the inside of the open end
A retaining ring 66 engaging from the outside is fitted on the periphery of
You. Damper 24₁Is the damper 24_TwoAnd the basics
Damper hole 37 having the same configuration₁Stored and arranged in
It is. Referring also to FIG. 6, the cover 67 is
A cover main body 68 made of a synthetic resin;
And a synthetic resin lid member 69 which is detachably mounted.
The cover main body 68 is made of all the normally-open solenoid valves.
V_OFL, V_ORR, V_ORL, V _OFRAnd all normally closed
Magnetic valve V_CFL, V_CRR, V_CRL, V_CFRAround
Rectangular frame portion 68a integrated with the mold portion 47
And both reservoirs 1 are integrally connected to the frame 68a.
9₁, 19_TwoAnd both dampers 24₁, 24_TwoSka covering
And a lid portion 69b.
68a. Moreover, the frame portion 68a and
The cover member 69 is provided with all the normally open solenoid valves V_OFL, V_ORR,
V_ORL, V_OFRAnd all normally closed solenoid valves V_CFL, V
_CRR, V_CRL, V _CFRRelatively large based on covering
It is configured as a box 70 of quantity.
The frame portion 68b is close to one side surface 34a of the base 34 and has a frame portion.
68a. The frame 68a of the cover body 68 includes
Upper contact surface 6 extending left and right along the upper edge of frame portion 68a
8a₁Extending vertically along the left and right side edges of the frame portion 68a.
A pair of side contact surfaces 68a_Two, 68a_TwoAnd is formed
When the cover main body 68 is fastened to the base 34,
Each contact surface 68a₁, 68a_Two, 68a_TwoIs the base 34
Abuts on one side surface 34a. In addition, cover body 68
The skirt portion 68b is provided with contact surfaces on both sides of the frame portion 68a.
68a_Two, 68a_TwoLeft and right of the skirt 68b
A pair of side contact surfaces 68b extending along both side edges₁, 68
b₁And the damper 24₁And reservoir 19₁Between
Damper 24_TwoAnd reservoir 19_TwoBetween each up and down
A pair of extending ribs 68b_Two, 68b_TwoAnd both reservoirs 1
9₁, 19_TwoA pair of lower contact surfaces 68b located below
_Three, 68b_ThreeAnd both lower contact surfaces 68b_Three, 68b_ThreeAmong
Rib 68b extending vertically at the center_FourAnd is formed,
When the cover main body 68 is fastened to the base 34,
Side contact surface 68b₁, 68b₁, Rib 68b_Two, 68
b_Two, Lower contact surface 68b_Three, 68b_ThreeAnd rib 68b
_FourAbuts on one side surface 34 a of the base 34. At the lower end of the skirt 68b, the base 34
A flange 68c is provided at right angles along the bottom surface.
Between the flange 68c and the lower surface of the base 34.
A gap is formed between the gaps as shown by a chain line in FIG. I
The side contact surface 68
b₁, 68b₁And rib 68b_Two, 68b_TwoIn between
Water channels 71, 71 are formed, and ribs 68b are formed._Two, 68b_TwoYou
And lower contact surface 68b_Three, 68b_ThreeDrainage channel 72 between them,
72 are formed, and the lower contact surface 68b is formed._Three, 68b_Threeand
Rib 68b_FourDrainage channels 73, 73 are formed between them. 7 and 8, both reservoirs 19 are shown.
₁, 19_TwoIs made of an elastic material such as rubber.
And a reservoir hole outside the stopper member 55.
38 ₁, 38_TwoAnd the plug member 5
The ventilation path 74 communicating with the ventilation hole 59 of the fifth section 5 is formed.
7a, a vent pipe 57b, a vent pipe 57b,
A reinforcing portion 57c provided between the dish portions 57a,
The engagement protrusion 5 protruding from the reinforcing portion 57c to the base 34 side.
7d. One end is passed through the vent hole 59 of the plug member 55.
The vent pipe 57b is formed in a box 70 having a relatively large capacity.
The other end is opened on the side opposite to one side surface 34a of the base 34
In this way, it is integrally connected to the dish 57a.
And one side 3 of the base 34 toward the box 70 side.
4a and is connected to the dish 57a in an inclined position away from the 4a.
You. In addition, reservoir hole 38₁, 38_TwoSea around the axis of
Provided on the base 34 to prevent the rotation of the
The engaging protrusion 57d is engaged with the cut-out recess 42.
You. The skirt 68b of the cover 67 has
A sealing member facing the dish-shaped portion 57a of the
57 reservoir holes 38₁, 38_TwoPrevent exit from
A plurality of protrusions 75 are arranged along the outer peripheral edge of the dish-shaped portion 57.
It is protruded with a gap. Next, the operation of this embodiment will be described.
And the cover 67 is a normally open solenoid valve V_{OF L}, V_ORR, V
_ORL, V_OFRAnd normally closed solenoid valve V_CFL, V_CRR, V
_CRL, V_{CF R}And a rectangular frame portion 68a surrounding the frame portion.
68a and both reservoirs 19₁, 19_TwoYou
And both dampers 24₁, 24_TwoSkirt 68b covering
Normally open solenoid valve V_OFL, V_ORR, V
_ORL, V_OFRAnd normally closed solenoid valve V_CFL, V_CRR, V
_CRL, V_CFRCover 67 covers both reservoirs 19₁,
19_TwoAnd both dampers 24₁, 24_TwoCan cover
Therefore, both reservoirs 19 ₁, 19_TwoAnd both dampers 24
₁, 24_TwoIt is not possible to provide a special cover to cover the
In other words, the cover 67 is directly attached to one side 34a of the base 34.
Lightening can be achieved by coupling. In addition, each coil 45 and bobbin 46 ...
Is to be embedded in a mold part 47 made of synthetic resin.
All normally open solenoid valves V_OFL, V_ORR, V_ORL, V
_OFRAnd all normally closed solenoid valves V_CFL, V_CRR,
V_CRL, V_CFRAs a common coil unit 48
The coil unit 48 is
It is formed integrally with the frame portion 68a of the bar 67.
There is a normally open type according to the connection of the base body 34 of the cover 67.
Solenoid valve V_OFL, V_ORR, V_ORL, V_OFRAnd all the usual
Closed solenoid valve V_CFL, V_CRR, V_CRL, V_CFRIs assembled
Upon completion, the reservoir 19₁, 19_TwoAnd Dan
Par 24₁, 24_TwoAssembly work
Can be improved. By the way, the connection between the base 34 and the cover 67 is made.
Since no special sealing member is provided on the mating surface,
Upper contact surface 68a of bar 67₁And side contact surface
68a_Two, 68a_TwoThe water that has entered the cover 67 from
The water flows downward along one side 34a of the base 34, and
1, 71, 72, 72, 73, 73
You. At this time, the skirt 68b of the cover 67 is
Observer 19₁, 19_TwoThe gap between the
Server 19₁, 19_TwoVent pipe b of seal member 57 at
Is open facing the skirt 68b,
Due to the narrow gap as shown in FIG.
Water may enter the communication chamber 54. But ventilation
The tube 57b has a relatively large capacity box-like shape of the cover 67.
In the portion 70, the opening is formed on the side opposite to the one side surface 34a of the base 34.
The water flowing through the one side 34a is formed by the ventilation pipe 57.
b is prevented as much as possible. The lower part of the base 34
When water splashes fall on the drains 71, 71, 7
2, 72, 73, 73 to the skirt 68 of the cover 67
In some cases, water may enter the b.
What are these drainage channels 71, 71, 72, 72, 73, 73?
By being opened by the reverse box 70,
Water entering the atmosphere communication chamber 54 with the breathing of the communication chamber 54
Is prevented as much as possible and the reservoir 19₁, 19_TwoWaterproof function
Can be improved. Further, the protrusions 7 provided on the skirt 68b are provided.
5 are opposed to the dish-shaped portion 57a of the sealing member 57.
Therefore, the sealing member 57 is₁, 38_Two
There is no danger that the waterproof property will decrease due to
The locking of the screw member 57 is ensured. The embodiment of the present invention has been described in detail above.
The description is not limited to the above embodiment, but
Various designs without departing from the invention described in the scope
Changes can be made. [0040] As described above, according to the present invention, one of the substrates
On the side, a box-shaped part that covers multiple solenoid valves, a seal member
Oppositely prevents the seal member from being detached from the reservoir hole.
Skirt covering the reservoir with projections
Cover, and one end is inserted into the vent hole of the plug member.
Communicate with one side of the base in the box
A vent pipe with the other end open on the side is provided on the seal member
Therefore, while allowing the air communication chamber to breathe,
It prevents water intrusion as much as possible and improves waterproof performance.
And the seal provided by the projection provided on the skirt
It is possible to prevent the material from coming off the reservoir hole.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a hydraulic circuit diagram of a vehicle brake device. FIG. 2 is a side view of the hydraulic control device. FIG. 3 is a front view of a base. FIG. 4 is a cutaway side view of the hydraulic control device taken along line 4-4 in FIG. 3; FIG. 5 is a cutaway side view of the hydraulic pressure control device along the line 5-5 in FIG. 3; FIG. 6 is a bottom view of the cover as viewed from the direction of arrow 6 in FIG. 4; FIG. 7 is a partial cross-sectional view of the reservoir taken along line 7-7 of FIG. FIG. 8 is a plan view of the seal member as viewed from a direction indicated by an arrow 8 in FIG. 7; [Description of Signs] 15 ... Hydraulic pressure control devices 19 ₁ , 19 ₂ ... Reservoir 34 ... Base 34a ... One side surface 38 ₁ , 38 ₂ ... Reservoir hole 52 ... Reservoir Chamber 53 Piston 54 Atmosphere communication chamber 55 Plug member 56 Return spring 57 Seal member 57b Vent pipe 59 Vent hole 67 Cover 68b ..Skirt 70 ... Box 75 ... Protrusions V _OFL , V _OFR , V _ORL , V _ORR ... Normally open solenoid valves V _CFL , V _CFR , V _CRL , V _CRR. Closed solenoid valve

Continuation of the front page (56) References JP-A-7-269734 (JP, A) JP-A-7-156771 (JP, A) JP-A-2-216354 (JP, A) JP-A 8-261201 (JP) JP-A-9-109856 (JP, A) JP-A-6-40402 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60T 8/34

Claims (1)

(57) [Claims] 1. An opening in one side surface (34a) of a base (34).
Then, the bottomed reservoir hole (3) provided in the base (34) is formed.
8₁, 38_Two) And the reservoir holes (38).₁, 38_Two) Close
A reservoir chamber (52) is formed between the closed end and the reservoir chamber so as to be slidable.
A piston (53) to be fitted, and the piston (53)
An air communication chamber (54) is formed between
A reservoir hole having a vent hole (59) leading to the chamber (54);
(38 ₁, 38_TwoPlug member (5)
5) and in a direction to reduce the volume of the reservoir chamber (52).
Energizes piston (53) and stores in air communication chamber (54)
Return spring (56) and water to the air communication chamber (54)
Through the vent hole (59)
The breathing of the air communication chamber (54) of the plug member (5) is allowed.
Outside the reservoir hole (38)₁, 38_Two) At the open end
And a sealing member (57) fitted therein.
9₁, 19_Two) And one side (34a) of the substrate (34)
A plurality of electrodes protruding from the
Magnetic valve (V_OFL, V_OFR, V_ORL, V_ORRV_CFL, V
_CFR, V_CRL, V_CRR) And;
On one side (34a) of the base (34), a plurality of electromagnetic
Valve (V_{OF L}, V_OFR, V_ORL, V_ORRV_CFL,
V_CFR, V_CRL, V_CRRThe box (70) covering
The sealing member (57) is opposed to the sealing member (57).
Server hole (38₁, 38_Two) To prevent departure from
(75) with the reservoir (19 ₁, 19_Two) To cover
A cover (6) in which a cart portion (68b) is integrally provided.
7) is connected, and one hole is inserted into the vent hole (59) of the plug member (55).
The end is communicated and a base is formed in the box (70).
(34) The other end is opened on the side opposite to one side surface (34a).
Vent pipe (57b) is provided in the sealing member (57).
Reservoir waterproofing in a hydraulic pressure control device
Construction.