JPH0318300Y2 - - Google Patents

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Publication number
JPH0318300Y2
JPH0318300Y2 JP17275882U JP17275882U JPH0318300Y2 JP H0318300 Y2 JPH0318300 Y2 JP H0318300Y2 JP 17275882 U JP17275882 U JP 17275882U JP 17275882 U JP17275882 U JP 17275882U JP H0318300 Y2 JPH0318300 Y2 JP H0318300Y2
Authority
JP
Japan
Prior art keywords
oil
chamber
brake
hydraulic
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP17275882U
Other languages
Japanese (ja)
Other versions
JPS5976461U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP17275882U priority Critical patent/JPS5976461U/en
Priority to GB08326843A priority patent/GB2132715B/en
Priority to US06/541,732 priority patent/US4552414A/en
Priority to DE19833339223 priority patent/DE3339223A1/en
Publication of JPS5976461U publication Critical patent/JPS5976461U/en
Application granted granted Critical
Publication of JPH0318300Y2 publication Critical patent/JPH0318300Y2/ja
Granted legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は、アンチロツクブレーキシステムにお
ける油圧回路の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in hydraulic circuits in anti-lock brake systems.

一般に、アンチロツクブレーキシステムは、電
子制御部においてスピードセンサからの車輪回転
速度を電気的に微分した車輪加速度信号に応じ
て、自動車の制動時に車輪がロツク状態に向かう
前兆を検出してモジユレータ(油圧調整装置)に
駆動指令を与え、そのモジユレータにより制動時
における自動車の操縦安定性を確保させるととも
に、制動距離を短縮させるべく適当な車輪スリツ
プ率を与えながら制動力を制動させるようにして
いる。
In general, an anti-lock brake system uses a modulator (hydraulic brake system) that detects a sign that the wheels are about to lock up when braking the car, in response to a wheel acceleration signal obtained by electrically differentiating the wheel rotational speed from a speed sensor in an electronic control unit. A drive command is given to the modulator (adjusting device), and the modulator ensures steering stability of the vehicle during braking, and also applies braking force while giving an appropriate wheel slip rate to shorten the braking distance.

このようなアンチロツクブレーキシステムにあ
つては、普通、後述するように、モジユレータの
解放油室とマスタシリンダのリザーバとを油路に
よつて連通させ、モジユレータによる油圧調整時
に解放油室の制動油をマスタシリンダのリザーバ
に逃がすようにしているが、油路の破損または連
結部のゆるみなどによつて油路内にエアーが混入
し、それが二次制動油圧室側にまわり込んでしま
うとモジユレータにおける微妙な油圧調整に不都
合をきたしてしまうことになる。
In such an anti-lock brake system, normally, as will be described later, the release oil chamber of the modulator and the reservoir of the master cylinder are communicated through an oil passage, and when the hydraulic pressure is adjusted by the modulator, the brake oil in the release oil chamber is communicated with the reservoir of the master cylinder. However, if the oil passage is damaged or the connection becomes loose, air gets into the oil passage and enters the secondary brake hydraulic chamber, causing damage to the modulator. This will cause inconvenience in delicate hydraulic adjustment.

本考案はこのような点を考慮してなされたもの
で、モジユレータからマスタシリンダのリザーバ
に解放油室の制動油を逃がす油路内にエアーが混
入しても、そのエアーが二次制動油圧室側にまわ
り込むのを防止するようにしたアンチロツクブレ
ーキシステムの油圧回路を提供するものである。
The present invention was developed with these points in mind, and even if air gets mixed into the oil passage that releases brake oil from the release oil chamber from the modulator to the reservoir of the master cylinder, the air will flow into the secondary brake oil pressure chamber. To provide a hydraulic circuit for an anti-lock brake system that prevents the brake from turning to the side.

以下、添付図面を参照して本考案の一実施例に
ついて詳述する。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

第2図はアンチロツクブレーキシステムにおけ
る油圧系統の一構成例を示すもので、ブレーキペ
ダル1の踏み込みに応じてタンデム型のマスタシ
リンダ2から第1のモジユレータ4における一次
制動油室41,41′にそれぞれブレーキ圧力が
与えられ、さらにその第1のモジユレータ4を通
して第2のモジユレータ5における一次制動油圧
室51,51′にもそれぞれ油圧制御弁61,6
1′を介してブレーキ圧力が与えられるようにな
つている。また、モジユレータ4の一次制動油圧
室41,41′にブレーキ圧力が与えられること
により、各ピストン42,42′がそれぞれ前方
に動くことによつて二次制動油圧室43,43′
にブレーキ圧力が伝達され、その二次制動油圧室
43,43′の各油圧出力にしたがつて自動車の
右および左側の各前輪ブレーキ71,71′がそ
れぞれ作動するようになつている。各ピストン4
2,42′は、モジユレータ4のシリンダを仕切
る隔壁17,17′の一端側にマスタシリンダ2
に通ずる一次制動油圧室41,42が画成される
ように第1ピストン421,421′が嵌合され、
その隔壁17,17′の他端側にブレーキ71,
71′に通ずる二次制動油圧室41,42′が画成
されるように第2ピストン422,422′が嵌
合され、それら第1、第2の各ピストンが隔壁1
7,17′に設けた孔を貫通するロツド18,1
8′によつて連結されることによつて構成されて
いる。なお、モジユレータ5側にあつても全く同
様で、各ピストン52,52′がそれぞれ前方に
動くことによつて二次制動油圧室53,53′に
ブレーキ圧力が伝達され、その各油圧出力によつ
て自動車の左および右側の各後輪ブレーキ81,
81′がそれぞれ作動するようになつている。ま
た、モジユレータ4および5におけるピストン4
2,42′および52,52′の各後部にはそれぞ
れ解放油室44,44′および54,54′が設け
られており、モジユレータ4と5との間における
各解放油室44,44′および54,54′が連通
され、モジユレータ5側の解放油室54,54′
が油路9によつてマスタシリンダ2にリザーバ3
につながつている。なお、解放油室44,44′
および54,54′の圧力が二次制動油圧室43,
43′および53,53′の圧力よりも大となるの
に応じて解放油室44,44′および54,5
4′から二次制動油圧室43,43′および53,
53′への油の流通を許容する手段として、各解
放油室44,44′および54,54′と各二次制
動油圧室43,43′および53,53′とをそれ
ぞれ仕切るカツプ型シール部材45,45′およ
び55,55′が各ピストン42,42′および5
2,52′側に一体に取り付けられており、各解
放油室44,44′および54,54′から各二次
制動油圧室43,43′および53,53′側へそ
れぞれ制動油が供給されるが、その逆方向には油
が漏れることがないようにしている。
FIG. 2 shows an example of the configuration of a hydraulic system in an anti-lock brake system. In response to the depression of the brake pedal 1, the primary brake oil chambers 41, 41' of the first modulator 4 are Brake pressure is applied to each, and hydraulic control valves 61 and 6 are also applied to the primary brake hydraulic chambers 51 and 51' in the second modulator 5 through the first modulator 4, respectively.
Brake pressure is applied via 1'. Furthermore, by applying brake pressure to the primary brake hydraulic chambers 41, 41' of the modulator 4, each piston 42, 42' moves forward, thereby causing the secondary brake hydraulic chambers 43, 43'.
Brake pressure is transmitted to the secondary brake hydraulic chambers 43, 43', and the front right and left front wheel brakes 71, 71' of the automobile are respectively operated in accordance with the respective hydraulic outputs of the secondary brake hydraulic chambers 43, 43'. each piston 4
2 and 42' are the master cylinder 2 on one end side of the partition walls 17 and 17' that partition the cylinders of the modulator 4.
The first pistons 421 and 421' are fitted so that primary brake hydraulic chambers 41 and 42 communicating with the first pistons 421 and 421' are defined,
A brake 71 is provided on the other end side of the partition wall 17, 17'.
71', the second pistons 422, 422' are fitted so as to define secondary brake hydraulic chambers 41, 42' communicating with the partition wall 1.
Rods 18, 1 passing through holes provided in 7, 17'
8'. The same is true on the modulator 5 side, and as each piston 52, 52' moves forward, brake pressure is transmitted to the secondary brake hydraulic chambers 53, 53', and the respective hydraulic outputs transmit the brake pressure. The left and right rear wheel brakes 81 of the automobile,
81' are adapted to operate, respectively. Also, the pistons 4 in modulators 4 and 5
Release oil chambers 44, 44' and 54, 54' are provided at the rear of each of 2, 42' and 52, 52', respectively. 54, 54' are in communication, and the open oil chambers 54, 54' on the modulator 5 side are connected to each other.
is connected to the master cylinder 2 through the oil passage 9 to the reservoir 3.
connected to. In addition, the release oil chambers 44, 44'
And the pressure of 54, 54' is the secondary braking hydraulic chamber 43,
43' and 53, 53', the released oil chambers 44, 44' and 54, 5 are opened.
4' to secondary brake hydraulic chambers 43, 43' and 53,
A cup-shaped seal member partitions each release oil chamber 44, 44' and 54, 54' from each secondary brake hydraulic chamber 43, 43' and 53, 53' as a means for allowing oil to flow to 53'. 45, 45' and 55, 55' are the respective pistons 42, 42' and 5
It is integrally attached to the 2 and 52' sides, and brake oil is supplied from each release oil chamber 44, 44' and 54, 54' to each secondary brake hydraulic chamber 43, 43' and 53, 53' side. However, this prevents oil from leaking in the opposite direction.

また、アンチロツク制御用のリザーバ10から
供給された制動油をポンプ11によつて所定に加
圧したのち、アキユムレータ12に一時蓄圧さ
せ、その蓄圧された制動油をノーマルクローズ型
のソレノイドバルブ131,132を通してモジ
ユレータ4,5の各アンチロツク制御油室46,
56にそれぞれ供給することができるようにして
いる。さらに、各アンチロツク制御油室46,5
6はそれぞれノーマルオープン型のソレノイドバ
ルブ141,142を通してリザーバ10につな
がつている。なお、これら各ソレノイドバルブ1
31,132および141,142は図示しない
電子制御部からの駆動指令にしたがつてそれぞれ
開、閉駆動されるもので、アンチロツク制御時に
はソレノイドバルブ131,132が開放されて
ソレノイドバルブ141,142が閉成され、非
制御時にはそれら各ソレノイドバルブ131,1
32および141,142′がそれぞれノーマル
状態に復帰するようになつている。
Further, after the brake oil supplied from the reservoir 10 for anti-lock control is pressurized to a predetermined level by the pump 11, the pressure is temporarily accumulated in the accumulator 12, and the accumulated brake oil is transferred to the normally closed solenoid valves 131, 132. through each anti-lock control oil chamber 46 of the modulator 4,5.
56, respectively. Furthermore, each anti-lock control oil chamber 46, 5
6 are connected to the reservoir 10 through normally open solenoid valves 141 and 142, respectively. In addition, each of these solenoid valves 1
31, 132 and 141, 142 are driven to open and close, respectively, according to drive commands from an electronic control unit (not shown), and during anti-lock control, solenoid valves 131, 132 are opened and solenoid valves 141, 142 are closed. and each solenoid valve 131, 1 when not controlled.
32, 141, 142' are adapted to return to their normal states.

このように構成されたアンチロツクブレーキシ
ステムにあつては、モジユレータ14および15
の一次制動油圧室41,41′および51,5
1′にそれぞれブレーキ圧力が加えられてその二
次制動油圧室43,43′および53,53′から
の油圧出力によつて各車輪ブレーキ71,71′
および81,81′を作動させる際、電子制御部
からアンチロツク駆動指令が出されると、ソレノ
イドバルブ131,132を通してモジユレータ
4,5のアンチロツク制御油室46,56に加圧
された制動油(ブレーキ圧力以上になるように加
圧されている)が適宜送り込まれ、それにより各
ピストン42,42′および52,52′がそれぞ
れ押しもどされてブレーキ圧力の調整が行なわれ
ることになる。その際、モジユレータ4,5にお
ける各解放油室44,44′および54,54′内
の制動油がリザーバ3側へ還流する。
In the anti-lock brake system configured in this way, the modulators 14 and 15
Primary brake hydraulic chambers 41, 41' and 51, 5
Brake pressure is applied to each wheel brake 71, 71' by the hydraulic output from the secondary brake hydraulic chambers 43, 43' and 53, 53'.
and 81, 81', when an anti-lock drive command is issued from the electronic control section, the brake oil (brake pressure (which is pressurized to the above level) is fed in as appropriate, thereby pushing back each piston 42, 42' and 52, 52', thereby adjusting the brake pressure. At this time, the brake oil in each of the release oil chambers 44, 44' and 54, 54' in the modulators 4, 5 flows back to the reservoir 3 side.

しかして、前述したようにモジユレータ4,5
における各解放油室44,44′および54,5
4′とリザーバ3とをつなぐ油路9内にエアーが
混入すると、ブレーキの解放時に各解放油室4
4,44′および54,54′から二次制動油圧室
43,42′および53,53′内にカツプ型シー
ル部材45,45′および55,55′を介して制動
油が供給される際にエアがまわり込んでしまうこ
とになる。
However, as mentioned above, the modulators 4 and 5
Each open oil chamber 44, 44' and 54, 5 in
4' and the reservoir 3, if air gets into the oil passage 9 that connects the oil chamber 4' and the reservoir 3, each released oil chamber 4
When brake oil is supplied from 4, 44' and 54, 54' into the secondary brake hydraulic chambers 43, 42' and 53, 53' via cup-shaped seal members 45, 45' and 55, 55'. This will cause air to get around.

このようなアンチロツクブレーキシステムにお
いて、特に本考案では、第2図に示すように、リ
ザーバ3とモジユレータ5側の解放油室54,5
4′とを連通させる油路9における各解放油室5
4,54′の上方部分に制動油を蓄積させるバツ
フア室16,16′を設けるようにしている。な
お、モジユレータ4,5にあつてはそれが上、下
の位置関係をもつて配設されており、下側のモジ
ユレータ4と上側のモジユレータ5との各対応す
る解放油室間が油路15,15′によつてそれぞ
れ連通されている。
In such an anti-lock brake system, especially in the present invention, as shown in FIG.
Each open oil chamber 5 in the oil passage 9 communicating with 4'
Buffer chambers 16, 16' for accumulating braking oil are provided in the upper portions of the cylinders 4, 54'. The modulators 4 and 5 are arranged in an upper and lower positional relationship, and an oil passage 15 is located between the corresponding open oil chambers of the lower modulator 4 and the upper modulator 5. , 15'.

しかして、油路9部分にバツフア室16,1
6′を設けているため、そのバツフア室16,1
6′とリザーバ3にサクシヨンジヨイント部との
間の油路9が破損などで油漏れを生じても、バツ
フア室16,16′に蓄積されている制動油によ
つてモジユレータ4,5の各二次制動油圧室4
3,43′および53,53′への供給量が確保さ
れ、また油路9内に浸入したエアーがモジユレー
タ4,5側へまわり込まないようにバツフア室1
6,16′部分で阻止されることになる。したが
つて、油路9が破損などして油漏れを生じても各
モジユレータ4,5におけるブレーキ圧力の調整
が正常に行なわれ、ブレーキ操作が確実になされ
るようになる。なお、油路9の破損などによる油
漏れによつてリザーバ3内の油量が所定以下にな
つたときには、リザーバ3内の油量監視装置が働
いて警報が発せられることになる。
Therefore, the buffer chambers 16 and 1 are located in the oil passage 9 portion.
6', the buffer chambers 16, 1
Even if the oil passage 9 between the suction joint section 6' and the reservoir 3 is damaged and oil leaks, the brake fluid accumulated in the buffer chambers 16, 16' will protect the modulators 4, 5. Each secondary brake hydraulic chamber 4
3, 43' and 53, 53' is ensured, and the buffer chamber 1
It will be blocked at the 6,16' portion. Therefore, even if oil leakage occurs due to damage to the oil passage 9, the brake pressure in each modulator 4, 5 can be adjusted normally, and the brake can be operated reliably. Note that when the amount of oil in the reservoir 3 falls below a predetermined level due to oil leakage due to damage to the oil passage 9, etc., an oil amount monitoring device in the reservoir 3 is activated to issue an alarm.

また、モジユレータ4,5間を結ぶ油路15,
15′およびモジユレータ5 とバツフア室16,
16′とを結ぶ油路部分にエアーがかんでも、各
モジユレータ4,5およびバツフア室16,1
6′が上、下の位置関係をもつて配設されている
ために油路内にエアーが滞留することなく自然と
上方に抜けるような油圧回路構成がとられてい
る。さらに、リザーバ3における油路9のサクシ
ヨンジヨイント部がバツフア室16,16′より
も上方に位置するように配設し、それにより油路
9内にエアーがかんでもそれが自然と上方に移動
してリザーバ3から外部に放出されるようにして
いる。
In addition, an oil passage 15 connecting the modulators 4 and 5,
15' and modulator 5 and buffer chamber 16,
Even if air gets caught in the oil passage connecting the
6' are disposed in an upper and lower positional relationship, so that a hydraulic circuit structure is adopted in which air naturally escapes upward without remaining in the oil passage. Furthermore, the suction joint of the oil passage 9 in the reservoir 3 is arranged above the buffer chambers 16, 16', so that even if air is trapped in the oil passage 9, it will naturally flow upward. It moves and is released from the reservoir 3 to the outside.

以上、本考案によるアンチロツクブレーキシス
テムの油圧回路にあつては、モジユレータ本体の
シリンダを隔壁により仕切り、該隔壁の一端側に
第1ピストンを嵌合してマスタシリンダに通ずる
一次制動油圧室を画成し、該隔壁の他端側に第2
ピストンを嵌合してブレーキに通ずる二次制動油
圧室を画成し、該隔壁に設けた孔を貫通して第
1、第2ピストンを連結するロツドを設け、第1
ピストンの一次制動油圧室とは反対側に臨んで制
御油圧源およびリザーバに切換弁を介して選択的
に連通するアンチロツク制御油室を設け、第2ピ
ストンの二次制動油圧室とは反対側に臨んでリザ
ーバに通ずる解放油室を設け、該解放油室の上方
部分に制動油を蓄積させるバツフア室を設け、解
放油室の圧力が二次制動油圧室の圧力よりも大と
なるのに応じて解放油室から二次制動油圧室への
油の流通を許容する手段を設けたもので、解放油
室に供給する油量を確保するとともに、その油路
内に混入したエアーがモジユレータの二次制動油
圧室にまわり込んで制動力を低下させるようなこ
とを防止させることができるという優れた利点を
有している。
As described above, in the hydraulic circuit of the anti-lock brake system according to the present invention, the cylinder of the modulator body is partitioned by a partition wall, and the first piston is fitted into one end of the partition wall to define a primary braking hydraulic chamber communicating with the master cylinder. and a second one on the other end side of the partition wall.
The piston is fitted to define a secondary braking hydraulic chamber communicating with the brake, and a rod is provided to connect the first and second pistons by passing through a hole provided in the partition wall.
An anti-lock control oil chamber is provided on the opposite side of the piston from the primary braking oil pressure chamber and selectively communicates with the control oil pressure source and the reservoir via a switching valve, and on the opposite side from the secondary braking oil pressure chamber of the second piston. A release oil chamber facing toward the reservoir is provided, and a buffer chamber for accumulating brake oil is provided in the upper part of the release oil chamber. This system is equipped with a means to allow oil to flow from the release oil chamber to the secondary brake hydraulic chamber, ensuring the amount of oil supplied to the release oil chamber, and preventing air mixed into the oil passage from entering the modulator's secondary brake hydraulic pressure chamber. This has an excellent advantage in that it can prevent the braking force from going around to the next braking hydraulic chamber and reducing the braking force.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案に係るアンチロツクブレーキシ
ステムにおける油圧系統の一構成例を示す図、第
2図は本考案によるアンチロツクブレーキシステ
ムの油圧回路の一実施例を示す図である。 1……マスタシリンダ、3……リザーバ、4,
5……モジユレータ、61,61′……油圧制御
弁、71,71′,81,81′……ブレーキ、1
0……リザーバ、11……加圧ポンプ、12……
アキユムレータ、131,132,141,14
2……ソレノイドバルブ、44,44′,54,
54′……解放油室、9……油路、16,16′…
…バツフア室。
FIG. 1 is a diagram showing an example of the construction of a hydraulic system in an anti-lock brake system according to the present invention, and FIG. 2 is a diagram showing an embodiment of the hydraulic circuit in an anti-lock brake system according to the present invention. 1...Master cylinder, 3...Reservoir, 4,
5... Modulator, 61, 61'... Hydraulic control valve, 71, 71', 81, 81'... Brake, 1
0... Reservoir, 11... Pressure pump, 12...
Accumulator, 131, 132, 141, 14
2... Solenoid valve, 44, 44', 54,
54'...Release oil chamber, 9...Oil passage, 16, 16'...
...Batuhua room.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] モジユレータ本体4のシリンダを隔壁により仕
切り、該隔壁の一端側に第1ピストンを嵌合して
マスタシリンダ2に通ずる一次制動油圧室41を
画成し、該隔壁の他端側に第2ピストンを嵌合し
てブレーキ71に通ずる二次制動油圧室43を画
成し、該隔壁に設けた孔を貫通して第1、第2ピ
ストンを連結するロツドを設け、第1ピストンの
一次制動油圧室41とは反対側に臨んで制御油圧
源11,12およびリザーバ10に切換弁13
1,141を介して選択的に連通するアンチロツ
ク制御油室46を設け、第2ピストンの二次制動
油圧室43とは反対側に臨んでリザーバに通ずる
解放油室44を設け、該解放油室44の上方部分
に制動油を蓄積させるバツフア室を設け、解放油
室44の圧力が二次制動油圧室43の圧力よりも
大となるのに応じて解放油室44から二次制動油
圧室43への油の流通を許容する手段45を設け
たことを特徴とするアンチロツクブレーキシステ
ムの油圧回路。
The cylinder of the modulator main body 4 is partitioned by a partition wall, a first piston is fitted on one end side of the partition wall to define a primary braking hydraulic chamber 41 communicating with the master cylinder 2, and a second piston is fitted on the other end side of the partition wall. A rod is provided to connect the first and second pistons by passing through a hole provided in the partition wall to define a secondary braking hydraulic chamber 43 which is fitted and communicated with the brake 71, and which connects the first piston to a primary braking hydraulic chamber 43. A switching valve 13 is connected to the control hydraulic power sources 11, 12 and the reservoir 10 on the opposite side from the 41.
1, 141, and a release oil chamber 44 facing the side opposite to the secondary braking oil pressure chamber 43 of the second piston and communicating with the reservoir. A buffer chamber for accumulating brake oil is provided in the upper part of 44, and when the pressure in the release oil chamber 44 becomes higher than the pressure in the secondary brake oil pressure chamber 43, the pressure is released from the release oil chamber 44 to the secondary brake oil pressure chamber 43. A hydraulic circuit for an anti-lock brake system, characterized in that it is provided with means 45 for allowing oil to flow to the anti-lock brake system.
JP17275882U 1982-10-29 1982-11-15 Anti-lock brake system hydraulic circuit Granted JPS5976461U (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP17275882U JPS5976461U (en) 1982-11-15 1982-11-15 Anti-lock brake system hydraulic circuit
GB08326843A GB2132715B (en) 1982-10-29 1983-10-07 Vehicle braking systems
US06/541,732 US4552414A (en) 1982-10-29 1983-10-13 Hydraulic circuit for an anti-locking braking system
DE19833339223 DE3339223A1 (en) 1982-10-29 1983-10-28 HYDRAULIC CIRCUIT FOR AN ANTI-BLOCK BRAKING SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17275882U JPS5976461U (en) 1982-11-15 1982-11-15 Anti-lock brake system hydraulic circuit

Publications (2)

Publication Number Publication Date
JPS5976461U JPS5976461U (en) 1984-05-24
JPH0318300Y2 true JPH0318300Y2 (en) 1991-04-17

Family

ID=30376497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17275882U Granted JPS5976461U (en) 1982-10-29 1982-11-15 Anti-lock brake system hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS5976461U (en)

Also Published As

Publication number Publication date
JPS5976461U (en) 1984-05-24

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