JPH0354058Y2 - - Google Patents
Info
- Publication number
- JPH0354058Y2 JPH0354058Y2 JP1424087U JP1424087U JPH0354058Y2 JP H0354058 Y2 JPH0354058 Y2 JP H0354058Y2 JP 1424087 U JP1424087 U JP 1424087U JP 1424087 U JP1424087 U JP 1424087U JP H0354058 Y2 JPH0354058 Y2 JP H0354058Y2
- Authority
- JP
- Japan
- Prior art keywords
- cap
- hole
- hydraulic fluid
- reservoir body
- opening
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 26
- 238000005192 partition Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
- Closures For Containers (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、例えば、車両等で用いられるマスタ
シリンダに好適な作動液リザーバに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hydraulic fluid reservoir suitable for a master cylinder used in, for example, a vehicle.
従来の、この種の作動液リザーバは、例えば、
実開昭60−13428号公報に示されるように、内部
に作動液を貯える筒状のリザーバ本体の開口部を
キヤツプ装置で油密に蓋をしてなり、マスタシリ
ンダと連絡される上記リザーバ本体には磁石付フ
ロートとリードスイツチからなる液面検知装置が
設けられる。キヤツプ装置は、作動液リザーバに
呼吸機能を持たせるために、リザーバ本体の開口
部に外嵌螺着されるキヤツプカバーと、該キヤツ
プカバー内面との間に空間を形成して上記開口部
を栓状に塞ぐキヤツプとからなる二重構造とし、
このキヤツプの中央部寄りの部位に大気連絡用の
通孔を設けるとともに、上記空間内に大気連絡用
の通孔を通してリザーバ本体内部と連通する室を
形成し該室の上端開口を座とする逆止弁体を取着
してあり、更に、上記通孔を通して上記室内に作
動液が侵入するのを防止するためにキヤツプ下面
中央部から該キヤツプ下面に対して間隙を隔てて
広がる板状のバツフルを形成してある。キヤツプ
装置は、リザーバ本体の開口部内面との間を密封
するためのシール部材をキヤツプ外周に嵌着して
該キヤツプをリザーバ本体に嵌合した上、キヤツ
プカバーをリザーバ本体に螺着して取り付けら
れ、キヤツプは、その周部をキヤツプカバーでリ
ザーバ本体開口部端面に押圧されて固定される。
Conventional hydraulic fluid reservoirs of this type include, for example:
As shown in Japanese Utility Model Application No. 60-13428, the opening of a cylindrical reservoir body that stores hydraulic fluid therein is oil-tightly covered with a cap device, and the reservoir body is connected to a master cylinder. is equipped with a liquid level detection device consisting of a float with a magnet and a reed switch. In order to give the hydraulic fluid reservoir a breathing function, the cap device forms a space between a cap cover that is externally screwed onto the opening of the reservoir body and the inner surface of the cap cover, and plugs the opening. It has a double structure consisting of a cap that closes in the shape of a
A hole for communicating with the atmosphere is provided in a portion near the center of this cap, and a chamber is formed in the space that communicates with the inside of the reservoir body through the hole for communicating with the atmosphere. A stop valve body is attached to the cap, and a plate-shaped buffle extends from the center of the lower surface of the cap with a gap to the lower surface of the cap in order to prevent hydraulic fluid from entering the chamber through the through hole. has been formed. The cap device is installed by fitting a sealing member to the outer periphery of the cap to seal the gap between the cap and the inner surface of the opening of the reservoir body, fitting the cap to the reservoir body, and then screwing the cap cover onto the reservoir body. Then, the cap is fixed by pressing its peripheral portion against the end face of the opening of the reservoir body with the cap cover.
ところで、キヤツプに形成されるバツフルはそ
の目的上、キヤツプ下面に対して比較的小さな間
隔を隔てて該キヤツプ下面に沿つて広がるように
形成され、バツフルの上面はその周縁側に向つて
下降傾斜しているが、両者が作る空間の奥部は間
隔が狭いので、この奥部に侵入した作動液は表面
張力作用で該奥部に溜りやすく、その上、上記従
来のものでは、この奥部に向つて対向する部位に
上記通孔が形成されているので、呼吸作用によつ
て上記通孔を通しキヤツプの上記室内に作動液が
流入し、この流入作動液は量的に大きくなつてく
るとキヤツプカバーとリザーバ本体との間から外
部に漏れ出してゆくという問題があつた。
By the way, for the purpose of the buffle formed on the cap, it is formed to spread along the lower surface of the cap at a relatively small distance from the lower surface of the cap, and the upper surface of the buffle is sloped downward toward the periphery. However, since the distance between the deep part of the space created by the two is narrow, the hydraulic fluid that has entered this deep part tends to accumulate there due to the effect of surface tension. Since the above-mentioned through holes are formed in the opposite parts, the working fluid flows into the above-mentioned chamber of the cap through the above-mentioned through-holes due to breathing action, and when this inflowing working fluid becomes large in quantity, There was a problem with leakage to the outside from between the cap cover and the reservoir body.
本考案は上記問題を解消するためになされもの
で、バツフルとキヤツプ下面間に作動液が溜るの
を防止して作動液の漏れをなくすことができる作
動液リザーバを得ることを目的とする。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a hydraulic fluid reservoir that can prevent hydraulic fluid from accumulating between the baffle and the lower surface of the cap, thereby eliminating leakage of the hydraulic fluid.
本考案は上記目的を達成するため、バツフルの
両側を連通する孔を中央部よりに設けた上、該孔
の形成部位と大気連絡用の通孔の形成部位とが整
合しないようにしたものである。
In order to achieve the above object, the present invention has a hole communicating with both sides of the buttful in the center, and the part where the hole is formed does not align with the part where the air communication hole is formed. be.
本考案では、バツフルに孔を形成したことによ
り、該バツフルとキヤツプ下面との間の奥部に侵
入した作動液は上記孔からバツフルの下面側へ流
出し、大気連絡用の通孔はこの奥部より外側の部
位に形成されているので、通孔を通しての作動液
のキヤツプ内への流入は実質上無くすことができ
る。
In this invention, by forming a hole in the buttful, the hydraulic fluid that has entered the deep part between the buttful and the bottom surface of the cap flows out from the hole to the bottom side of the buttful, and the hole for communicating with the atmosphere is located in this deep part. Since the cap is formed outside the cap, it is possible to substantially eliminate the flow of hydraulic fluid into the cap through the through hole.
以下、本考案の一実施例を図面を参照して説明
する。
An embodiment of the present invention will be described below with reference to the drawings.
第１図において、１は作動液リザーバのリザー
バ本体であつて、図示しないが液面検知装置を有
し図示しない接続部を通してマスタシリンダの液
圧室に連絡される。２はキヤツプカバー及び３は
キヤツプであつて、互いに回動可能に結合された
両者によりリザーバ本体１の開口部を閉塞するキ
ヤツプ装置が構成されている。キヤツプ３は浅い
筒状もしくは皿状をなし、フランジ４をリザーバ
本体１の開口部１ａ端面上に係合して該開口部内
に嵌合され、開口部１ａに外嵌されて上記開口部
端面との間にフランジ４を挟圧するキヤツプカバ
ー２との間に空間５を画成する。キヤツプ３の空
間５側には、中央軸部６、該中央軸部６を囲む隔
壁７、該隔壁７を囲んで室８を形成する隔壁９を
有し、該室８とリザーバ本体１の内部空間１ｂと
連通する大気連絡用通孔１０が隔壁９寄りに形成
されており、隔壁７には、隔壁９の上端面及び隔
壁７の外周面を各々座とする逆止弁体１１が嵌合
されており、その嵌合部１２の上端部はキヤツプ
カバー２の中央に突出形成された係合突部２ａに
内嵌し、逆止弁１１は、中央軸部６によりキヤツ
プカバー２とキヤツプ３との間の間隔を所定値に
確保することにしていることによつて、所定位置
に位置して配置されるようにしている（必要以上
に上下方向の圧縮力が作用しないようにしてい
る）。キヤツプ３の内部空所１ｂ側には、その中
央部に連絡部３Ａが突出形成され、該連絡部から
キヤツプ３の下面に沿つて広がるバツフル１３が
該下面との間に間隔を形成して設けられており、
第２図に示す如く、このバツフル１３の中央部よ
りの部位に孔１４が形成されている。この孔１４
は通孔１０より孔面積の大きく作動液の表面張力
作用により完全に閉鎖されない長孔として形成さ
れている。１５はシール部材であつて、キヤツプ
３の外周に形成された嵌合凹部１６に嵌着されて
おり、下面から垂下する筒部１７を有し、該筒部
１７はキヤツプ下面から突出する高さに形成され
ている。 In FIG. 1, reference numeral 1 denotes a reservoir body of a hydraulic fluid reservoir, which has a fluid level detection device (not shown) and is connected to a fluid pressure chamber of a master cylinder through a connection (not shown). A cap cover 2 and a cap 3 are rotatably connected to each other and constitute a cap device for closing the opening of the reservoir body 1. The cap 3 has a shallow cylindrical or dish-like shape, and is fitted into the opening 1a of the reservoir body 1 by engaging the flange 4 on the end surface of the opening 1a, and is fitted externally into the opening 1a so as to meet the end surface of the opening 1a. A space 5 is defined between the cap cover 2 and the cap cover 2 which pinches the flange 4 therebetween. On the space 5 side of the cap 3, there is a central shaft portion 6, a partition wall 7 surrounding the central shaft portion 6, and a partition wall 9 surrounding the partition wall 7 to form a chamber 8. An air communication hole 10 communicating with the space 1b is formed near the partition wall 9, and a check valve body 11 is fitted into the partition wall 7, with the upper end surface of the partition wall 9 and the outer peripheral surface of the partition wall 7 serving as seats, respectively. The upper end of the fitting part 12 is fitted into an engaging protrusion 2a formed in the center of the cap cover 2, and the check valve 11 is connected to the cap cover 2 and the cap 3 by the central shaft part 6. By ensuring a predetermined distance between the . A communication portion 3A is formed protruding from the center of the internal cavity 1b side of the cap 3, and a buffle 13 extending from the communication portion along the lower surface of the cap 3 is provided with a gap formed between it and the lower surface. has been
As shown in FIG. 2, a hole 14 is formed near the center of this buttful 13. This hole 14
is formed as a long hole that has a larger hole area than the through hole 10 and is not completely closed due to the surface tension of the hydraulic fluid. A sealing member 15 is fitted into a fitting recess 16 formed on the outer periphery of the cap 3, and has a cylindrical portion 17 that hangs down from the lower surface, and the cylindrical portion 17 has a height that projects from the lower surface of the cap. is formed.
この構成においては、バツフル１３の比較的孔
面積の大きい孔１４が形成されているので、キヤ
ツプ３の下面とバツフル１３との間の空間Ｇの間
隔が狭い奥部に作動液が侵入しても該作動液はこ
の孔１４からバツフル１３の下面側に流出するの
で作動液が溜ることはなく、その上、通孔１０が
空間Ｇの上記奥部ではなく隔壁９寄りのバツフル
１３と対向間隔が該奥部より広くなつている部位
にあるので、室８への作動液の侵入は実質上防止
される。 In this configuration, since the hole 14 of the baffle 13 is formed with a relatively large hole area, even if the hydraulic fluid enters the inner part where the space G between the lower surface of the cap 3 and the buffle 13 is narrow, Since the hydraulic fluid flows out from this hole 14 to the lower surface side of the baffle 13, the hydraulic fluid does not accumulate.Moreover, the through hole 10 is not located in the deep part of the space G, but has a facing interval with the buff full 13 near the partition wall 9. Since it is located at a portion wider than the inner part, intrusion of hydraulic fluid into the chamber 8 is substantially prevented.
本考案は以上説明した通り、キヤツプ下面とバ
ツフルとがなす空間の奥部がバツフルに設けた孔
を通してリザーバ本体内部空所に開放されている
ので、上記奥部に作動液が溜ることがなく、大気
連絡用の通孔も該奥部に向けて開口していないの
で、作動液の漏れを無くすことができる。
As explained above, in the present invention, the deep part of the space formed between the bottom surface of the cap and the buttful is opened to the inner cavity of the reservoir body through the hole provided in the buttful, so that the hydraulic fluid does not accumulate in the deep part. Since the through hole for communicating with the atmosphere does not open toward the inner part, leakage of the working fluid can be eliminated.
第１図は本考案の実施例の要部を示す縦断面
図、第２図は上記実施例におけるバツフルの下面
図である。
１……リザーバ本体，２……キヤツプカバー、
３……キヤツプ、３Ａ……連絡部、１０……通
孔、１３……バツフル、１４……孔。
FIG. 1 is a vertical cross-sectional view showing the main parts of an embodiment of the present invention, and FIG. 2 is a bottom view of the baffle in the above embodiment. 1... Reservoir body, 2... Cap cover,
3...Cap, 3A...Communication section, 10...Through hole, 13...Bassful, 14...Hole.
Claims (1)
ーバ本体と、該リザーバ本体の上部に形成した開
口と、該開口をふさいで取付けられるキヤツプ
と、該キヤツプに設けられキヤツプ下面中央に形
成された連絡部からキヤツプ下面に沿つて形成さ
れた板状のバツフルと、前記キヤツプ下面に前記
バツフルに対向して形成され内部空所を外気に連
絡する通孔とを備えた作動液リザーバにおいて、
前記バツフルの前記連絡部に隣接する部位に当該
バツフルの両側を連通する孔を設けるとともに、
前記孔をこの通孔と整合しない位置に設けた作動
液リザーバ。 A reservoir body having an internal cavity for storing hydraulic fluid, an opening formed in the upper part of the reservoir body, a cap that is attached to cover the opening, and a communication provided in the cap and formed in the center of the bottom surface of the cap. A hydraulic fluid reservoir comprising a plate-shaped baffle formed along the lower surface of the cap from the top, and a through hole formed on the lower surface of the cap opposite to the baffle and communicating the internal space with the outside air,
A hole that communicates both sides of the buttful is provided in a portion of the buttful adjacent to the communication portion, and
A hydraulic fluid reservoir in which the hole is located at a position that is not aligned with the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1424087U JPH0354058Y2 (en) | 1987-02-04 | 1987-02-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1424087U JPH0354058Y2 (en) | 1987-02-04 | 1987-02-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63123471U JPS63123471U (en) | 1988-08-11 |
| JPH0354058Y2 true JPH0354058Y2 (en) | 1991-11-27 |
Family
ID=30804041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1424087U Expired JPH0354058Y2 (en) | 1987-02-04 | 1987-02-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0354058Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5100918B2 (en) * | 2011-03-28 | 2012-12-19 | 株式会社Ｔ・Ｕ・Ｍ | Denture system, denture creation method and repair method |
-
1987
- 1987-02-04 JP JP1424087U patent/JPH0354058Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5100918B2 (en) * | 2011-03-28 | 2012-12-19 | 株式会社Ｔ・Ｕ・Ｍ | Denture system, denture creation method and repair method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63123471U (en) | 1988-08-11 |
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