JPS5576736A - Two-stage operation type master cylinder - Google Patents

Two-stage operation type master cylinder

Info

Publication number
JPS5576736A
JPS5576736A JP13999178A JP13999178A JPS5576736A JP S5576736 A JPS5576736 A JP S5576736A JP 13999178 A JP13999178 A JP 13999178A JP 13999178 A JP13999178 A JP 13999178A JP S5576736 A JPS5576736 A JP S5576736A
Authority
JP
Japan
Prior art keywords
master cylinder
chamber
pressure
main
pressure chamber
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.)
Pending
Application number
JP13999178A
Other languages
Japanese (ja)
Inventor
Ichiro Ishiwatari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabco Ltd
Original Assignee
Nabco Ltd
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 by Nabco Ltd filed Critical Nabco Ltd
Priority to JP13999178A priority Critical patent/JPS5576736A/en
Publication of JPS5576736A publication Critical patent/JPS5576736A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

PURPOSE: To simplify the structure and provide a compact device by providing the shouldered bore inside the main piston with the stepped piston equipped with the valve device for making brake oil in auxiliary pressure chamber flow into the main pressure or feeding chamber.
CONSTITUTION: The shouldered bore 37 installed in the main piston 9 is provided with the stepped piston 43 equipped with the valve device (consisting of valve chamber 48, lip seal 50, 51, etc.) for making brake liquid in auxiliary pressure chamber 12 flow into main pressure chamber 16 or feeding chamber 15. This makes it unnecessary to install the valve device on other portion of the master cylinder 1, thus eliminating the necessity to provide large-sized master cylinder 1. Since the small-diameter hole 2 of the shouldered hole 5 is made even smaller in diameter, the pressure inside the pressure chamber 16 is made to rise at high pressure rate in the high pressure range, enabling the master cylinder 1 to be compact.
COPYRIGHT: (C)1980,JPO&Japio
JP13999178A 1978-11-14 1978-11-14 Two-stage operation type master cylinder Pending JPS5576736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13999178A JPS5576736A (en) 1978-11-14 1978-11-14 Two-stage operation type master cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13999178A JPS5576736A (en) 1978-11-14 1978-11-14 Two-stage operation type master cylinder

Publications (1)

Publication Number Publication Date
JPS5576736A true JPS5576736A (en) 1980-06-10

Family

ID=15258385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13999178A Pending JPS5576736A (en) 1978-11-14 1978-11-14 Two-stage operation type master cylinder

Country Status (1)

Country Link
JP (1) JPS5576736A (en)

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