JPS55112406A - Master cylinder - Google Patents

Master cylinder

Info

Publication number
JPS55112406A
JPS55112406A JP2123179A JP2123179A JPS55112406A JP S55112406 A JPS55112406 A JP S55112406A JP 2123179 A JP2123179 A JP 2123179A JP 2123179 A JP2123179 A JP 2123179A JP S55112406 A JPS55112406 A JP S55112406A
Authority
JP
Japan
Prior art keywords
oil
piston
rod
oil chamber
pedal
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
Application number
JP2123179A
Other languages
Japanese (ja)
Other versions
JPS6241896B2 (en
Inventor
Masao Kakui
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.)
Tadano Ltd
Original Assignee
Tadano Iron Works Co 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 Tadano Iron Works Co Ltd filed Critical Tadano Iron Works Co Ltd
Priority to JP2123179A priority Critical patent/JPS55112406A/en
Publication of JPS55112406A publication Critical patent/JPS55112406A/en
Publication of JPS6241896B2 publication Critical patent/JPS6241896B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a master cylinder in which a large capacity of oil can be supplied to a brake cylinder with a light stepping on the pedal by a method wherein the rod of the piston oil chamber of a large diameter moves into oil chamber of small diameter and a small piston for closing and opening a check valve is equipped in the above-mentioned rod.
CONSTITUTION: When a pedal D is stepped on, a piston 5 goes right through a push rod 4 and oil in oil chamber 8 of large diameter is supplied to a brake cylinder through the 1st oil conduit 9, a check valve 10, an opening 18. Therefore, when the brakes are energized and hydraulic pressure rises up to an assigned value, the hydralulic pressure given by the piston of a small piston rod 16 exceeds the compression of a spring 17 and the rod 16 moves to the left. Consequently the check valve 10 is closed and then only oil in oil chamber 3 of small diameter is supplied to the brake cylinder by the stepping-on of the pedal D through a plunger 6.
COPYRIGHT: (C)1980,JPO&Japio
JP2123179A 1979-02-23 1979-02-23 Master cylinder Granted JPS55112406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2123179A JPS55112406A (en) 1979-02-23 1979-02-23 Master cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2123179A JPS55112406A (en) 1979-02-23 1979-02-23 Master cylinder

Publications (2)

Publication Number Publication Date
JPS55112406A true JPS55112406A (en) 1980-08-30
JPS6241896B2 JPS6241896B2 (en) 1987-09-04

Family

ID=12049248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2123179A Granted JPS55112406A (en) 1979-02-23 1979-02-23 Master cylinder

Country Status (1)

Country Link
JP (1) JPS55112406A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172869A (en) * 1981-04-14 1982-10-23 Akebono Brake Ind Co Ltd Differential master cylinder
JPS588454A (en) * 1981-07-08 1983-01-18 Toyoda Autom Loom Works Ltd Oil hydraulic brake
US4738109A (en) * 1986-11-04 1988-04-19 Deere & Company Two stage brake control valve
WO1988006991A1 (en) * 1987-03-09 1988-09-22 R & R Research Corporation Manually operable booster for vehicular braking systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172869A (en) * 1981-04-14 1982-10-23 Akebono Brake Ind Co Ltd Differential master cylinder
JPS588454A (en) * 1981-07-08 1983-01-18 Toyoda Autom Loom Works Ltd Oil hydraulic brake
US4738109A (en) * 1986-11-04 1988-04-19 Deere & Company Two stage brake control valve
WO1988006991A1 (en) * 1987-03-09 1988-09-22 R & R Research Corporation Manually operable booster for vehicular braking systems

Also Published As

Publication number Publication date
JPS6241896B2 (en) 1987-09-04

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