JPH0337065U

JPH0337065U -

Info

Publication number: JPH0337065U
Application number: JP9822189U
Authority: JP
Priority date: 1989-08-23
Filing date: 1989-08-23
Publication date: 1991-04-10

Description

[Brief explanation of the drawing]

第１図は本考案に係るシールリングの一実施例
を示したもので、第１図ａはその一端方向から見
た斜視図、第１図ｂはその他端方向から見た斜視
図、第２図はそのシールリングをマスタシリンダ
に装着した状態を示した断面図、第３図は本考案
に係るシールリングの他の実施例を示した斜視図
、第４図はそのシールリングをマスタシリンダに
装着した状態を示した断面図、第５図は従来のマ
スタシリンダのシール構造を示した断面図、第６
図ａ，ｂはそのシール構造で採用されているシー
ルリングをそれぞれの端部方向から見た斜視図で
ある。１……マスタシリンダ本体、２……端部、３…
…パワーブースタハウジング、４……フランジ、
５……呼吸室、６……ピストン、１０……シール
リング、１０ａ……一端面、１０ｂ……傾斜面、
１０ｃ……他端面、１１……孔、１２……突起、
１３……凹部、１３ａ……傾斜面、１４……溝、
１５……環状溝、１５ａ，１５ｂ……傾斜面、１
６……通気孔、１７……空間、１８……通気孔、
１９……第１の室、２０……第２の室、２１……
間隙、２２……溝、３０……シールリング、３０
ａ……端面、３１……孔、３２，３３……フラン
ジ部、３４……突起、３５……環状溝、３６……
通気孔、３７……溝、３８……第１の室、３９…
…第２の室、４０……通気孔。 Fig. 1 shows an embodiment of the seal ring according to the present invention, Fig. 1a is a perspective view of the seal ring as seen from one end, Fig. 1b is a perspective view of the seal ring as seen from the other end, and Fig. 1b is a perspective view of the seal ring as seen from the other end. The figure is a sectional view showing the seal ring attached to the master cylinder, Figure 3 is a perspective view showing another embodiment of the seal ring according to the present invention, and Figure 4 is the seal ring attached to the master cylinder. Fig. 5 is a sectional view showing the installed state, Fig. 5 is a sectional view showing the seal structure of a conventional master cylinder, Fig. 6 is a sectional view showing the seal structure of a conventional master cylinder.
Figures a and b are perspective views of the seal ring employed in the seal structure, viewed from the respective end directions. 1... Master cylinder body, 2... End part, 3...
...Power booster housing, 4...Flange,
5... Breathing chamber, 6... Piston, 10... Seal ring, 10a... One end surface, 10b... Inclined surface,
10c...other end surface, 11...hole, 12...protrusion,
13... recess, 13a... inclined surface, 14... groove,
15...Annular groove, 15a, 15b...Slanted surface, 1
6...Vent hole, 17...Space, 18...Vent hole,
19...first chamber, 20...second chamber, 21...
Gap, 22...Groove, 30...Seal ring, 30
a... End face, 31... Hole, 32, 33... Flange portion, 34... Protrusion, 35... Annular groove, 36...
Ventilation hole, 37...Groove, 38...First chamber, 39...
...Second chamber, 40...Vent.

Claims

[Scope of utility model registration request]

The power booster housing is disposed at a meeting point between a master cylinder body and a power booster housing that abuts against the flange of the master cylinder body and surrounds the end of the master cylinder body to form a breathing chamber, so that the power booster housing is not connected to the breathing chamber from the outside. A seal ring for a master cylinder that prevents water from entering, when the seal ring is installed, has an annular first chamber that communicates with the outside at at least a plurality of locations around the entire outer periphery, and a second chamber that communicates with the breathing chamber. A seal ring for a master cylinder, wherein the first chamber and the second chamber communicate with each other via a ventilation hole.