JPH04104069U - Reservoir for master cylinder - Google Patents
Reservoir for master cylinderInfo
- Publication number
- JPH04104069U JPH04104069U JP634391U JP634391U JPH04104069U JP H04104069 U JPH04104069 U JP H04104069U JP 634391 U JP634391 U JP 634391U JP 634391 U JP634391 U JP 634391U JP H04104069 U JPH04104069 U JP H04104069U
- Authority
- JP
- Japan
- Prior art keywords
- cap
- hollow chamber
- reservoir
- air hole
- baffle plate
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 abstract description 12
- 230000007257 malfunction Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 21
- 238000012856 packing Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
- Closures For Containers (AREA)
Abstract
(57)【要約】
［目的］ リザーバのキャップに設けたブリーザ通路か
らの作動オイルの漏れを、作動オイルの粘性で壁面に張
り付いて動作不良を起し易い作動部材を用いることなく
確実に防止する。
［構成］ リザーバ本体１のキャップ装着部１２を閉塞
するキャップ２の下面に、外周に隙間２７を有する邪魔
板２６と、邪魔板２６の上面に対向する第１エアー孔３
３を下面に有する下部中空室２９と、第２エアー孔３４
を有する仕切板３２により下部中空室２９と区画される
上部中空室３１を設ける。上部中空室３１はその外周に
環状の塵溜り３５を備え、切欠き３８，２９を介して大
気に連通する。
(57) [Summary] [Purpose] To reliably prevent leakage of hydraulic oil from the breather passage provided in the reservoir cap without using operating members that tend to stick to walls due to the viscosity of the hydraulic oil and cause malfunctions. do. [Configuration] A baffle plate 26 having a gap 27 on the outer periphery is provided on the lower surface of the cap 2 that closes the cap mounting portion 12 of the reservoir body 1, and a first air hole 3 facing the upper surface of the baffle plate 26.
3 on the lower surface, and a second air hole 34.
An upper hollow chamber 31 is provided which is partitioned from a lower hollow chamber 29 by a partition plate 32 having a diameter. The upper hollow chamber 31 has an annular dust reservoir 35 on its outer periphery and communicates with the atmosphere through cutouts 38 and 29.
Description
【０００１】0001
本考案は、車両のブレーキ装置やクラッチ装置に圧油を供給するためのマスタ シリンダに接続されるマスタシリンダ用リザーバに関する。 This invention is a master system for supplying pressure oil to vehicle brake and clutch devices. This invention relates to a master cylinder reservoir connected to a cylinder.
【０００２】0002
かかるマスタシリンダ用リザーバとして、例えば実公昭５９−４３１５９号公 報に記載されたものが公知である。上記リザーバのキャップに設けられるブリー ザ通路には作動オイルがリザーバの外部に漏れることを防止するための複数の中 空室が形成され、それら中空室は上下動自在なプレートにより相互に連通あるい 遮断されるように構成される。そして、リザーバ内部の作動オイルが波立つとプ レートが上昇して作動オイルの漏出が防止されるとともに、作動オイルの油面が 平静になるとプレートが下降して中空室の作動オイルが速やかにリザーバ内部に 戻される。 As such a master cylinder reservoir, for example, Japanese Utility Model Publication No. 59-43159 Those described in the report are publicly known. Bree provided on the cap of the above reservoir. The passage has multiple chambers to prevent hydraulic oil from leaking outside the reservoir. Vacant chambers are formed, and these hollow chambers are interconnected or communicated with each other by vertically movable plates. Configured to be blocked. If the hydraulic oil inside the reservoir ripples, The rate increases, preventing hydraulic oil leakage, and lowering the hydraulic oil level. When things calm down, the plate descends and the working oil in the hollow chamber quickly flows into the reservoir. be returned.
【０００３】0003
しかしながら、上記従来のマスタシリンダ用リザーバは、振動により上下動す るプレートが作動オイルの粘性で壁面に付着して機能しなくなる可能性があり、 信頼性の面で必ずしも満足できるものではない。 However, the conventional master cylinder reservoir mentioned above moves up and down due to vibration. The viscosity of the operating oil may cause the plate to stick to the wall and become inoperable. It is not always satisfactory in terms of reliability.
【０００４】 本考案は前述の事情に鑑みてなされたもので、可動部材を用いることなくブリ ーザ通路からの作動オイルの漏れを確実に防止できるマスタシリンダ用リザーバ を提供することを目的とする。0004 The present invention was developed in view of the above-mentioned circumstances, and it is possible to create a bridge without using movable parts. A reservoir for the master cylinder that reliably prevents hydraulic oil from leaking from the sensor passage. The purpose is to provide
【０００５】[0005]
前記目的を達成するために、本考案は、マスタシリンダに接続されるリザーバ 本体の上部に形成したキャップ装着部を着脱自在なキャップで閉塞してなるマス タシリンダ用リザーバにおいて、前記キャップの下面に、キャップ装着部の内周 との間に微小な隙間を形成する邪魔板と、邪魔板の上部に間隔を存して設けられ 、その下面に邪魔板の上面に対向する第１エアー孔を有する下部中空室と、前記 第１エアー孔と偏心する第２エアー孔を有する仕切板を介して下部中空室の上部 に設けられ、その外周に環状の塵溜りを有して大気に連通する上部中空室とを設 けたことを第１の特徴とする。 In order to achieve the above object, the present invention provides a reservoir connected to the master cylinder. A mass formed by closing the cap attachment part formed on the top of the main body with a removable cap. In the reservoir for the cylinder, the inner circumference of the cap mounting part is attached to the bottom surface of the cap. A baffle plate that forms a small gap between the , a lower hollow chamber having a first air hole on its lower surface facing the upper surface of the baffle plate; The upper part of the lower hollow chamber is inserted through a partition plate having a second air hole eccentric to the first air hole. It is provided with an upper hollow chamber that has an annular dust reservoir on its outer periphery and communicates with the atmosphere. The first feature is that the
【０００６】 また本考案は、前述の第１の特徴に加えて、下部中空室に第１エアー孔と第２ エアー孔の直接の連通を遮る隔壁を設けたことを第２の特徴とする。[0006] In addition to the first feature described above, the present invention also provides a first air hole and a second air hole in the lower hollow chamber. The second feature is that a partition wall is provided that blocks direct communication between the air holes.
【０００７】 更に本考案は、前述の第１または第２の特徴に加えて、下部中空室の底面に第 １エアー孔の開口よりも高い頂面を有する台状突起を設け、この台状突起の頂面 を第２エアー孔の下部に対向させたことを第３の特徴とする。[0007] Furthermore, in addition to the first or second feature described above, the present invention further provides a second feature on the bottom surface of the lower hollow chamber. 1. A pedestal projection having a top surface higher than the opening of the air hole is provided, and the top surface of this pedestal projection is The third feature is that the air hole is opposed to the lower part of the second air hole.
【０００８】[0008]
以下、図面に基づいて本考案の実施例を説明する。 Embodiments of the present invention will be described below based on the drawings.
【０００９】 図１および図２は本考案の第１実施例を示すもので、図１はリザーバの部分断 面図、図２はリザーバのキャップ装着部を示す図である。[0009] Figures 1 and 2 show a first embodiment of the present invention, with Figure 1 being a partial section of the reservoir. A top view, FIG. 2 is a diagram showing a cap mounting portion of the reservoir.
【００１０】 図１に示すように、リザーバＲは中空の合成樹脂製容器よりなるリザーバ本体 １と、その上部に着脱自在に装着されるキャップ２とを備え、このキャップ２は 合成樹脂製のキャップボディ３、合成樹脂製のシールキャップ４、およびゴム製 のパッキン５の３部材より構成される。0010 As shown in Figure 1, the reservoir R is a reservoir body made of a hollow synthetic resin container. 1, and a cap 2 that is removably attached to the top of the cap. Cap body 3 made of synthetic resin, seal cap 4 made of synthetic resin, and rubber It is composed of three members: the packing 5.
【００１１】 概略円筒状に形成されたリザーバ本体１の側面には、３本の補強突起６，７， ８と２個の取付部９，１０が形成され、更にその底部にはブレーキ装置のマスタ シリンダにホースを介して接続される継手部１１が突設される。リザーバ本体１ の上面には前記キャップ２を装着するための円筒状のキャップ装着部１２が一体 に形成され、そのキャップ装着部１２の下端中央には円形のオイル供給孔１５が 形成される。[0011] Three reinforcing protrusions 6, 7, 8 and two mounting parts 9 and 10 are formed, and furthermore, the master of the brake device is formed at the bottom of the mounting parts 9 and 10. A joint portion 11 that is connected to the cylinder via a hose is provided in a protruding manner. Reservoir body 1 A cylindrical cap mounting part 12 for mounting the cap 2 is integrated on the top surface. A circular oil supply hole 15 is formed in the center of the lower end of the cap mounting part 12. It is formed.
【００１２】 図２を併せて参照すると明らかなように、キャップ２の外郭を構成するキャッ プボディ３は円形の頂壁１６の周縁に接続する側壁１７を備え、その側壁１７に はＬ字状に屈曲する２個の鉤部１８が下向きに突設される。またキャップ装着部 １２の上縁に外向きに突設したフランジ１９には前記鉤部１８を上下に通過させ るための２個の切欠き２０が形成されるとともに、各切欠き２０に接続するよう にカム面２１と係止段部２２がフランジ１９下面に沿って形成される。0012 As is clear when referring also to FIG. The body 3 includes a side wall 17 that connects to the peripheral edge of a circular top wall 16. Two hook portions 18 bent in an L-shape are provided to protrude downward. Also, the cap attachment part A flange 19 protruding outward from the upper edge of 12 has a flange 19 through which the hook 18 passes vertically. Two notches 20 are formed to connect to each notch 20. A cam surface 21 and a locking step 22 are formed along the lower surface of the flange 19.
【００１３】 シールキャップ４の外周はキャップボディ３の側壁１７の内周に形成した環状 溝２３に係合しており、これにより前記シールキャップ４はキャップボディ３の 内部から脱落しないように保持される。シールキャップ４の下面に突設したパッ キン支持部２４にはリング状のパッキン５が嵌合しており、キャップ２がリザー バ本体１に装着された図１の状態では、キャップ装着部１２の上端とシールキャ ップ４の間に前記パッキン５が挟圧保持される。[0013] The outer periphery of the seal cap 4 is an annular shape formed on the inner periphery of the side wall 17 of the cap body 3. The seal cap 4 is engaged with the groove 23 of the cap body 3. It is held so that it does not fall out from inside. A pad protruding from the bottom of the seal cap 4 A ring-shaped packing 5 is fitted into the support part 24, and the cap 2 is fitted into the reservoir. In the state shown in Fig. 1 attached to the bar body 1, the upper end of the cap mounting part 12 and the seal cap are connected to each other. The packing 5 is held under pressure between the caps 4.
【００１４】 次に、図１に基づいてシールキャップ４のブリーザ通路の構造を詳述する。シ ールキャップ４の下面中央部にはボス２５を介して円盤状の邪魔板２６が設けら れ、その邪魔板２６の外周と前記オイル供給孔１５の内周は上下方向に僅かにオ ーバーラップして両者の間に環状の空間２７が形成される。邪魔板２６の上部に は環状の側壁２８により外周を区画された下部中空室２９が一体に形成され、更 にその外周を覆うように前記側壁２８よりも背が高く且つ同心円状の側壁３０に より上部中空室３１が一体に形成される。前記内側の側壁２８の上部には円形の 仕切板３２が嵌め込みにより固着され、この仕切板３２により下部中空室２９と 上部中空室３１が上下に区画される。[0014] Next, the structure of the breather passage of the seal cap 4 will be described in detail based on FIG. S A disk-shaped baffle plate 26 is provided at the center of the lower surface of the ring cap 4 via a boss 25. The outer periphery of the baffle plate 26 and the inner periphery of the oil supply hole 15 are slightly open in the vertical direction. - Burlap, and an annular space 27 is formed between the two. At the top of the baffle plate 26 A lower hollow chamber 29 whose outer periphery is partitioned by an annular side wall 28 is integrally formed. A side wall 30 is taller than the side wall 28 and has a concentric shape so as to cover the outer periphery of the side wall 28. The upper hollow chamber 31 is integrally formed. At the top of the inner side wall 28 is a circular The partition plate 32 is fixed by fitting, and the partition plate 32 separates the lower hollow chamber 29 from the lower hollow chamber 29. The upper hollow chamber 31 is divided into upper and lower sections.
【００１５】 下部中空室２９の下面には邪魔板２６の上面に対向する２個の第１エアー孔３ ３が穿設されるとともに、下部中空室２９と上部中空室３１を区画する仕切板３ ２の中心には前記２個の第１エアー孔３３と偏心するように１個の第２エアー孔 ３４が穿設される。上部中空室３１の底部、すなわち一対の側壁２８，３０の間 には下部中空室２９を囲むように環状の塵溜り３５が形成される。[0015] Two first air holes 3 are provided on the lower surface of the lower hollow chamber 29 and are opposed to the upper surface of the baffle plate 26. 3 is bored and partition plate 3 partitions the lower hollow chamber 29 and the upper hollow chamber 31. 2, one second air hole is provided in the center of the second air hole 33 so as to be eccentric to the two first air holes 33. 34 are drilled. The bottom of the upper hollow chamber 31, that is, between the pair of side walls 28 and 30 An annular dust reservoir 35 is formed surrounding the lower hollow chamber 29.
【００１６】 シールキャップ４の上面には、キャップボディ３の頂壁１６の下面と協働して ラビリンスを構成する２本の環状突起３６，３７が上部中空室３１の外周を囲繞 して同心円状に突設される。また、前記シールキャップ４の上面とキャップボデ ィ３の下面により画成される空間は、キャップボディ３の側壁１７の内周に形成 した切欠き３８，３９により大気に連通する。[0016] The upper surface of the seal cap 4 is provided in cooperation with the lower surface of the top wall 16 of the cap body 3. Two annular projections 36 and 37 forming a labyrinth surround the outer periphery of the upper hollow chamber 31. They are concentrically protruded. Moreover, the upper surface of the seal cap 4 and the cap body The space defined by the lower surface of the cap body 3 is formed on the inner periphery of the side wall 17 of the cap body 3. The notches 38 and 39 communicate with the atmosphere.
【００１７】 次に、前述の構成を備えた本考案の第１実施例の作用について説明する。 キャップ２をリザーバ本体１に装着するには、キャップボディ３の２個の鉤部 １８をキャップ装着部１２の２個の切欠き２０に挿入した後、そのキャップ２を 時計方向に回転させる。すると、前記鉤部１８がカム面２１を乗り越えて係止段 部２２に安定的に係合し、キャップ２は下向きのセット荷重を与えられた状態で キャップ装着部１２に固定される。なお、キャップ２を取り外すには、鉤部１８ が係止段部２２から離脱するようにキャップ２を下向きに押圧しながら反時計方 向に回転させれば良い。[0017] Next, the operation of the first embodiment of the present invention having the above-described configuration will be explained. To attach the cap 2 to the reservoir body 1, use the two hooks on the cap body 3. 18 into the two notches 20 of the cap mounting part 12, then insert the cap 2. Rotate clockwise. Then, the hook portion 18 climbs over the cam surface 21 and engages the locking step. The cap 2 is stably engaged with the portion 22, and the cap 2 is under a downward set load. It is fixed to the cap mounting part 12. Note that in order to remove the cap 2, use the hook portion 18. counterclockwise while pressing the cap 2 downward so that it separates from the locking step 22. Just rotate it in the direction.
【００１８】 上述のようにしてキャップ２がリザーバ本体１に装着されると、そのパッキン ５がキャップ装着部１２の上端とシールキャップ４の外周との間に挟圧される。 これにより、リザーバ本体１の内部は邪魔板２６の外周の隙間２７、２個のエア ー孔３３、下部中空室２９、仕切板３２に形成した１個のエアー孔３４、上部中 空室３１、キャップボディ３の頂壁１６とシールキャップ４の環状突起３６，３ ７の隙間、およびキャップボディ３の側壁１７の内周に形成した切欠き３８，３ ９により構成されるブリーザ通路を介してのみ大気に連通し、作動オイルの油面 の変動による内圧の変化が補償される。この場合、シールキャップ４上に流入し た空気中の塵埃は塵溜り３５に落下して保持され、リザーバ本体１への侵入が阻 止される。[0018] When the cap 2 is attached to the reservoir body 1 as described above, its packing 5 is pressed between the upper end of the cap mounting portion 12 and the outer periphery of the seal cap 4. As a result, the inside of the reservoir body 1 is filled with a gap 27 on the outer periphery of the baffle plate 26 and two air holes. - hole 33, lower hollow chamber 29, one air hole 34 formed in the partition plate 32, upper middle Vacant chamber 31, top wall 16 of cap body 3 and annular protrusion 36, 3 of seal cap 4 7 and notches 38, 3 formed on the inner periphery of the side wall 17 of the cap body 3. It communicates with the atmosphere only through the breather passage constituted by 9, and the oil level of the working oil This compensates for changes in internal pressure due to fluctuations in In this case, the flow will flow onto the seal cap 4. The dust in the air falls into the dust reservoir 35 and is retained, preventing it from entering the reservoir body 1. will be stopped.
【００１９】 車両の振動等によって作動オイルの油面が波立った場合、その作動オイルが前 記ブリーザ通路を介して外部に漏れる虞れがあるが、作動オイルは先ず邪魔板２ ６に衝突して勢いを弱められるため、極少量のみが隙間２７を介して邪魔板２６ の上部に流入する。邪魔板２６の上部には第１エアー孔３３を有する下部中空室 ２９と、この下部中空室２９に第２エアー孔３４を介して連通する上部中空室３ １が配設され、しかも前記第１エアー孔３３と第２エアー孔３４は互いに偏心す るように形成されているため、その迷路効果により作動オイルの漏出が防止され る。万一作動オイルが上部中空室３１に達しても、その作動オイルは２本の環状 突起３６，３７により構成されるラビリンスによって阻止され、且つ塵溜り３５ に流入して保持されることにより、キャップ２の切欠き３８，３９から外部に漏 出するに至らない。[0019] If the surface of the hydraulic oil ripples due to vehicle vibration, etc., the hydraulic oil may Although there is a risk of leakage to the outside through the breather passage, the operating oil first passes through the baffle plate 2. 6 and the momentum is weakened, only a very small amount passes through the gap 27 and hits the baffle plate 26. flows into the upper part of the The upper part of the baffle plate 26 has a lower hollow chamber having a first air hole 33. 29, and an upper hollow chamber 3 communicating with this lower hollow chamber 29 via a second air hole 34. 1 is arranged, and the first air hole 33 and the second air hole 34 are eccentric to each other. The labyrinth effect prevents hydraulic oil from leaking. Ru. Even if the working oil reaches the upper hollow chamber 31, the working oil will not be able to reach the upper hollow chamber 31. The dust trap 35 is blocked by a labyrinth formed by the protrusions 36 and 37. By flowing into the cap 2 and being held there, leakage to the outside from the notches 38 and 39 of the cap 2 I can't bring it out.
【００２０】 リザーバＲに対する作動オイルの補給は、キャップ２を取り外した状態でキャ ップ装着部１２を介して行われるが、そのキャップ装着部１２の内周により形成 されるオイル供給孔１５は充分大きな開口面積を備えることから、作動オイルの 供給作業を速やかに且つ容易に行うことができる。[0020] To replenish the hydraulic oil to the reservoir R, remove the cap 2. This is done through the cap mounting part 12, but it is formed by the inner periphery of the cap mounting part 12. Since the oil supply hole 15 has a sufficiently large opening area, the oil supply hole 15 has a sufficiently large opening area. Supply work can be performed quickly and easily.
【００２１】 図３および図４は本考案の第２実施例を示すもので、この実施例は下部中空室 ２９の内部構造に特徴を持ち、その余の構造は先の第１実施例と同一である。[0021] 3 and 4 show a second embodiment of the present invention, in which the lower hollow chamber 29, and the remaining structure is the same as that of the first embodiment.
【００２２】 この実施例は、下部中空室２９の底壁から上方に延びる一対の円弧状の隔壁４ ０を備える。隔壁４０は下部中空室２９を画成する環状の側壁２８と協働して第 １エアー孔３３を囲むように配設され、側壁２８と隔壁４０の間には各２個の隙 間４１が形成される。一対の隔壁４０の間は、下部中空室２９の底壁から段差４ ２を介して一段高く形成された台状突起４３が設けられ、この台状突起４３の頂 面に仕切板３２の第２エアー孔３４が対向する。なお、この実施例の第１エアー 孔３３は、作動オイルを下部中空室２９からリザーバ本体１へスムーズに戻すべ く、その上端開口が漏斗状に形成される。[0022] In this embodiment, a pair of arcuate partition walls 4 extend upward from the bottom wall of the lower hollow chamber 29. 0. The partition wall 40 cooperates with the annular side wall 28 that defines the lower hollow chamber 29. 1 air hole 33, and there are two gaps each between the side wall 28 and the partition wall 40. A gap 41 is formed. There is a step 4 between the pair of partition walls 40 from the bottom wall of the lower hollow chamber 29. A platform-shaped protrusion 43 formed one step higher is provided through the The second air hole 34 of the partition plate 32 faces the surface. Note that the first air in this example The hole 33 should smoothly return the working oil from the lower hollow chamber 29 to the reservoir body 1. The upper opening is shaped like a funnel.
【００２３】 この実施例によれば、２個の第１エアー孔３３から下部中空室２９に侵入した 作動オイルは、隔壁４０に遮られるために隙間４１に沿って迂回し、更に台状突 起４３の段部４２に衝突して勢いを弱められる。その結果、台状突起４３の頂面 から第２エアー孔３４を介して上部中空室３１に達する作動オイルの量は更に少 なくなり、作動オイルの漏出を一層効果的に防止することができる。[0023] According to this embodiment, air enters the lower hollow chamber 29 from the two first air holes 33. Since the working oil is blocked by the partition wall 40, it detours along the gap 41 and further flows into the trapezoidal protrusion. It collides with the step 42 of the riser 43 and its momentum is weakened. As a result, the top surface of the platform protrusion 43 The amount of working oil that reaches the upper hollow chamber 31 through the second air hole 34 is further reduced. This makes it possible to more effectively prevent leakage of operating oil.
【００２４】 以上、本考案の実施例を詳述したが、本考案は前記実施例に限定されるもので はなく、実用新案登録請求の範囲に記載された本考案を逸脱することなく種々の 小設計変更を行うことが可能である。[0024] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. However, various modifications may be made without departing from the present invention as stated in the claims for utility model registration. It is possible to make minor design changes.
【００２５】 例えば、実施例のリザーバＲはマスタシリンダと別体に設けられるものである が、本考案はマスタシリンダと一体のリザーバに対しても適用することが可能で ある。[0025] For example, the reservoir R in the embodiment is provided separately from the master cylinder. However, this invention can also be applied to a reservoir integrated with the master cylinder. be.
【００２６】[0026]
以上のように本考案の第１の特徴によれば、リザーバ本体のキャップ装着部を 覆うキャップの下面に、下から順に邪魔板、下部中空室、および大気に連通する 上部中空室を配設し、リザーバ本体の内部と上部中空室とを、邪魔板とキャップ 装着部との間に形成した隙間、下部中空室の下面に設けた第１エアー孔、下部中 空室と上部中空室とを区画する仕切板に第１エアー孔と偏心して形成した第２エ アー孔により構成される複雑な迷路を介して連通させているので、作動オイルの 外部への漏出を確実に防止することができる。また、上部中空室の外周に環状の 塵溜りを形成したので、空気中の塵埃のリザーバ本体への侵入と作動オイルの外 部への漏出を効果的に阻止することが可能となる。しかも、このリザーバは可動 部材を一切持たないため、その可動部材が作動オイルの粘性で他部材に密着して 作動不良を起こす虞れがない。 As described above, according to the first feature of the present invention, the cap mounting portion of the reservoir body is On the bottom surface of the covering cap, from the bottom, the baffle plate, the lower hollow chamber, and the atmosphere are communicated. An upper hollow chamber is provided, and a baffle plate and a cap connect the inside of the reservoir body and the upper hollow chamber. The gap formed between the mounting part, the first air hole provided on the lower surface of the lower hollow chamber, and the lower center A second air hole is formed eccentrically from the first air hole in the partition plate that partitions the empty chamber and the upper hollow chamber. Communication is made through a complex labyrinth of holes, so the working oil Leakage to the outside can be reliably prevented. In addition, there is a ring around the outer periphery of the upper hollow chamber. Since a dust trap has formed, dust in the air may enter the reservoir body and operating oil may leak out. This makes it possible to effectively prevent leakage to other parts of the body. Moreover, this reservoir is movable. Since it does not have any parts, its movable parts stick to other parts due to the viscosity of the operating oil. There is no risk of malfunction.
【００２７】 また本考案の第２の特徴によれば、互いに偏心する第１エアー孔と第２エアー 孔の間が隔壁で遮られるため、下部中空室から上部中空室への作動オイルの漏出 をより確実に阻止することができる。[0027] According to a second feature of the present invention, the first air hole and the second air hole are eccentric to each other. Because the space between the holes is blocked by a partition, hydraulic oil leaks from the lower hollow chamber to the upper hollow chamber. can be more reliably prevented.
【００２８】 また本考案の第３の特徴によれば、下部中空室の底面に開口する第１エアー孔 よりも高い頂面を有する台状突起を第２エアー孔の下部に形成したので、その台 状突起の段部で作動オイルを遮ることにより、下部中空室から上部中空室への作 動オイルの漏出をより確実に阻止することができる。[0028] According to a third feature of the present invention, the first air hole opens at the bottom of the lower hollow chamber. Since a pedestal-like protrusion with a higher top surface than By blocking the working oil with the stepped part of the protrusion, the operation from the lower hollow chamber to the upper hollow chamber is prevented. Leakage of dynamic oil can be more reliably prevented.
【図１】第１実施例によるリザーバの部分断面図[Fig. 1] Partial cross-sectional view of a reservoir according to the first embodiment
【図２】リザーバのキャップ装着部を示す図[Figure 2] Diagram showing the cap attachment part of the reservoir
【図３】第２実施例によるリザーバの部分断面図[Fig. 3] Partial cross-sectional view of the reservoir according to the second embodiment.
【図４】図３の４−４線断面図[Figure 4] Cross-sectional view taken along line 4-4 in Figure 3
１・・・リザーバ本体 ２・・・キャップ １２・・キャップ装着部 ２６・・邪魔板 ２７・・隙間 ２９・・下部中空室 ３１・・上部中空室 ３２・・仕切板 ３３・・第１エアー孔 ３４・・第２エアー孔 ３５・・塵溜り ４０・・隔壁 ４３・・台状突起 1...Reservoir body 2...Cap 12...Cap attachment part 26...Baffle board 27...Gap 29. Lower hollow chamber 31... Upper hollow chamber 32...Partition plate 33...1st air hole 34...Second air hole 35...Dust puddle 40... bulkhead 43... Trapezoid process
Claims (3)
体（１）の上部に形成したキャップ装着部（１２）を着
脱自在なキャップ（２）で閉塞してなるマスタシリンダ
用リザーバにおいて、前記キャップ（２）の下面に、キ
ャップ装着部（１２）の内周との間に微小な隙間（２
７）を形成する邪魔板（２６）と、邪魔板（２６）の上
部に間隔を存して設けられ、その下面に邪魔板（２６）
の上面に対向する第１エアー孔（３３）を有する下部中
空室（２９）と、前記第１エアー孔（３３）と偏心する
第２エアー孔（３４）を有する仕切板（３２）を介して
下部中空室（２９）の上部に設けられ、その外周に環状
の塵溜り（３５）を有して大気に連通する上部中空室
（３１）とを設けたことを特徴とする、マスタシリンダ
用リザーバ。1. A reservoir for a master cylinder in which a cap attachment part (12) formed on the upper part of a reservoir body (1) connected to a master cylinder is closed with a removable cap (2), wherein the cap (2) is closed with a removable cap (2). ) and the inner periphery of the cap attachment part (12).
A baffle plate (26) forming a baffle plate (26) is provided at the upper part of the baffle plate (26), and a baffle plate (26) is provided on the lower surface of the baffle plate (26).
A lower hollow chamber (29) having a first air hole (33) facing the upper surface, and a partition plate (32) having a second air hole (34) eccentric to the first air hole (33). A reservoir for a master cylinder, characterized in that an upper hollow chamber (31) is provided above a lower hollow chamber (29), has an annular dust reservoir (35) on its outer periphery, and communicates with the atmosphere. .
３）と第２エアー孔（３４）の直接の連通を遮る隔壁
（４０）を設けたことを特徴とする、請求項１記載のマ
スタシリンダ用リザーバ。[Claim 2] A first air hole (3) is provided in the lower hollow chamber (29).
2. The master cylinder reservoir according to claim 1, further comprising a partition wall (40) that blocks direct communication between the second air hole (34) and the second air hole (34).
孔（３３）の開口よりも高い頂面を有する台状突起（４
３）を設け、この台状突起（４３）の頂面を第２エアー
孔（３４）の下部に対向させたことを特徴とする、請求
項１または２記載のマスタシリンダ用リザーバ。3. A platform protrusion (4) having a top surface higher than the opening of the first air hole (33) on the bottom surface of the lower hollow chamber (29).
3), and the top surface of the platform projection (43) faces the lower part of the second air hole (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991006343U JP2525729Y2 (en) | 1991-02-15 | 1991-02-15 | Reservoir for master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991006343U JP2525729Y2 (en) | 1991-02-15 | 1991-02-15 | Reservoir for master cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04104069U true JPH04104069U (en) | 1992-09-08 |
| JP2525729Y2 JP2525729Y2 (en) | 1997-02-12 |
Family
ID=31737517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991006343U Expired - Lifetime JP2525729Y2 (en) | 1991-02-15 | 1991-02-15 | Reservoir for master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525729Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005531453A (en) * | 2002-06-28 | 2005-10-20 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Hydraulic fluid tank |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911059U (en) * | 1982-07-14 | 1984-01-24 | トキコ株式会社 | liquid reservoir |
| JPS63118454U (en) * | 1987-01-27 | 1988-07-30 | ||
| JPH01152868U (en) * | 1988-04-13 | 1989-10-20 |
-
1991
- 1991-02-15 JP JP1991006343U patent/JP2525729Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911059U (en) * | 1982-07-14 | 1984-01-24 | トキコ株式会社 | liquid reservoir |
| JPS63118454U (en) * | 1987-01-27 | 1988-07-30 | ||
| JPH01152868U (en) * | 1988-04-13 | 1989-10-20 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005531453A (en) * | 2002-06-28 | 2005-10-20 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | Hydraulic fluid tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2525729Y2 (en) | 1997-02-12 |
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