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JPS5440974A - Mass cylinder apparatus - Google Patents

Mass cylinder apparatus

Info

Publication number
JPS5440974A
JPS5440974A JP10675977A JP10675977A JPS5440974A JP S5440974 A JPS5440974 A JP S5440974A JP 10675977 A JP10675977 A JP 10675977A JP 10675977 A JP10675977 A JP 10675977A JP S5440974 A JPS5440974 A JP S5440974A
Authority
JP
Japan
Prior art keywords
piston
diameter
brake
small
valve
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
JP10675977A
Other languages
Japanese (ja)
Other versions
JPS6039573B2 (en
Inventor
Kennosuke Iida
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.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry 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 Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP10675977A priority Critical patent/JPS6039573B2/en
Publication of JPS5440974A publication Critical patent/JPS5440974A/en
Publication of JPS6039573B2 publication Critical patent/JPS6039573B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

PURPOSE: To obtain a rapid high and brake power having a small piston stroke by diminishing the boosting ratio in the brake action ending period.
CONSTITUTION: At the top end of a small-diameter piston 42, a middle-diameter piston 42a which is inserted into a middle-diameter cylinder 1 is formed in an united body, and inside the middle-diameter piston, a stepped piston 33 is inserted through a spring 30, and fixed by means of a stop ring 34, and between the base end side chamber 29 of the middle-diameter cylinder 1 and a reservoir 8, an uni- directional valve 7 is arranged. Thus, when the brake is operated, a driving piston 39 is moved leftward, and also a small-diameter piston 42 is moved leftward in an united body, keeping a high-pressure operating valve 24 opened, and the valve 7 closes a passage 5, and a large amount of operating liquid in low pressure is supplied from an exit 35 to the brake output part, and in the brake action ending period, the reducing valve constituted of the stepped piston 33 is moved rightward, and the middle-diameter piston 42a effectively operates, and the boosting ratio is reduced
COPYRIGHT: (C)1979,JPO&Japio
JP10675977A 1977-09-07 1977-09-07 master cylinder device Expired JPS6039573B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10675977A JPS6039573B2 (en) 1977-09-07 1977-09-07 master cylinder device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10675977A JPS6039573B2 (en) 1977-09-07 1977-09-07 master cylinder device

Publications (2)

Publication Number Publication Date
JPS5440974A true JPS5440974A (en) 1979-03-31
JPS6039573B2 JPS6039573B2 (en) 1985-09-06

Family

ID=14441830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10675977A Expired JPS6039573B2 (en) 1977-09-07 1977-09-07 master cylinder device

Country Status (1)

Country Link
JP (1) JPS6039573B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149844A (en) * 2008-12-14 2010-07-08 Robert Bosch Gmbh Dead stroke reducing valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149844A (en) * 2008-12-14 2010-07-08 Robert Bosch Gmbh Dead stroke reducing valve

Also Published As

Publication number Publication date
JPS6039573B2 (en) 1985-09-06

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