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JPS5647347A - Hydraulic cylinder - Google Patents

Hydraulic cylinder

Info

Publication number
JPS5647347A
JPS5647347A JP12340879A JP12340879A JPS5647347A JP S5647347 A JPS5647347 A JP S5647347A JP 12340879 A JP12340879 A JP 12340879A JP 12340879 A JP12340879 A JP 12340879A JP S5647347 A JPS5647347 A JP S5647347A
Authority
JP
Japan
Prior art keywords
pressure chamber
land part
liquid pressure
piston
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.)
Pending
Application number
JP12340879A
Other languages
Japanese (ja)
Inventor
Kaoru Nakamura
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.)
Aisin Corp
Original Assignee
Aisin Seiki 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 Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP12340879A priority Critical patent/JPS5647347A/en
Publication of JPS5647347A publication Critical patent/JPS5647347A/en
Pending legal-status Critical Current

Links

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  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

PURPOSE: To improve a pressure rising efficiency and also to improve durability of a cap seal, by a method wherein, in a clutch master cylinder and other hydraulic cylinders, a staged portion of a piston and a cylinder inner wall are formed to produce a noncontact seal action.
CONSTITUTION: The first land part 22, being positioned facing and opposite to a liquid pressure chamber 25, and the second land part 23, being located further rear from the liquid pressure chamber 25 than said land part 22 are situated on a piston 13 which can slide at the inside of a cylinder proper 11 in a clutch master cylinder 10 for car. A relation between diameters s and d of the land parts 22 and 23, respectively, and a diameter D of a cylinder inner circumference wall 12 is formed to be an inequality of d≤s<D, and a plurarity of groove stripes are made in an outer circumferential surface of the land part 22. A cap seal is matedly fitted between the rand parts 22 and 23. When the piston 13 moves to the left, the liquid pressure chamber 25 is reduced in the pressure therein at the inside of the liquid pressure chamber 25a by a noncontact seal action, and the leakage of liquid from the cap seal 24 is prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP12340879A 1979-09-25 1979-09-25 Hydraulic cylinder Pending JPS5647347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12340879A JPS5647347A (en) 1979-09-25 1979-09-25 Hydraulic cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12340879A JPS5647347A (en) 1979-09-25 1979-09-25 Hydraulic cylinder

Publications (1)

Publication Number Publication Date
JPS5647347A true JPS5647347A (en) 1981-04-30

Family

ID=14859808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12340879A Pending JPS5647347A (en) 1979-09-25 1979-09-25 Hydraulic cylinder

Country Status (1)

Country Link
JP (1) JPS5647347A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831464U (en) * 1981-08-25 1983-03-01 自動車機器株式会社 hydraulic cylinder
JP2010064685A (en) * 2008-09-12 2010-03-25 Yamaha Motor Co Ltd Master cylinder and vehicle provided with the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5831464U (en) * 1981-08-25 1983-03-01 自動車機器株式会社 hydraulic cylinder
JP2010064685A (en) * 2008-09-12 2010-03-25 Yamaha Motor Co Ltd Master cylinder and vehicle provided with the same

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