JPS5551649A - Two-stage action master cylinder - Google Patents
Two-stage action master cylinderInfo
- Publication number
- JPS5551649A JPS5551649A JP12303578A JP12303578A JPS5551649A JP S5551649 A JPS5551649 A JP S5551649A JP 12303578 A JP12303578 A JP 12303578A JP 12303578 A JP12303578 A JP 12303578A JP S5551649 A JPS5551649 A JP S5551649A
- Authority
- JP
- Japan
- Prior art keywords
- reservoir
- valve
- pressure chamber
- low pressure
- master cylinder
- 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
Landscapes
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
PURPOSE: To greatly simplify the construction of a drum-type brake which is equipped for an automobile wheel, by providing a change-over valve having a valve piston and a valve member between a low pressure chamber and a reservoir.
CONSTITUTION: A cylinder body 1 has a stepped cylinder opening 2 which comprises a small-diameter front cylinder hole 3 and a large-diameter rear cylinder hole 4. A change-over valve having a valve piston 62 and a vlave member 67 is provided between a low pressure chamber 12 and a reservoir 24 to disconnect the low pressure chamber 12 from the reservoir 24 at the starting of action of a master cylinder or connect the chamber 12 to the reservoir 24. Therefore, a valve for disconnecting the low pressure chamber 12 from the reservoir 24 at the starting of action of the master cylinder and a valve for connecting the chamber 12 to the reservoir 24 when the liquid pressure in a high pressure chamber 11 is higher than a prescribed level do not need to be separately provided. This results in greatly simplifying the construction.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12303578A JPS5551649A (en) | 1978-10-04 | 1978-10-04 | Two-stage action master cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12303578A JPS5551649A (en) | 1978-10-04 | 1978-10-04 | Two-stage action master cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5551649A true JPS5551649A (en) | 1980-04-15 |
JPS6114978B2 JPS6114978B2 (en) | 1986-04-22 |
Family
ID=14850589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12303578A Granted JPS5551649A (en) | 1978-10-04 | 1978-10-04 | Two-stage action master cylinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5551649A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002249040A (en) * | 2001-02-26 | 2002-09-03 | Tokico Ltd | Master cylinder |
KR100495757B1 (en) * | 2001-02-26 | 2005-06-16 | 가부시끼가이샤 히다치 세이사꾸쇼 | Master cylinder |
JP2008222214A (en) * | 2007-03-08 | 2008-09-25 | Ap Racing Ltd | Differential hydraulic master cylinder |
-
1978
- 1978-10-04 JP JP12303578A patent/JPS5551649A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002249040A (en) * | 2001-02-26 | 2002-09-03 | Tokico Ltd | Master cylinder |
KR100495757B1 (en) * | 2001-02-26 | 2005-06-16 | 가부시끼가이샤 히다치 세이사꾸쇼 | Master cylinder |
JP4703867B2 (en) * | 2001-02-26 | 2011-06-15 | 日立オートモティブシステムズ株式会社 | Master cylinder |
JP2008222214A (en) * | 2007-03-08 | 2008-09-25 | Ap Racing Ltd | Differential hydraulic master cylinder |
Also Published As
Publication number | Publication date |
---|---|
JPS6114978B2 (en) | 1986-04-22 |
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