JPS5515369A - Piston cup - Google Patents
Piston cupInfo
- Publication number
- JPS5515369A JPS5515369A JP8874178A JP8874178A JPS5515369A JP S5515369 A JPS5515369 A JP S5515369A JP 8874178 A JP8874178 A JP 8874178A JP 8874178 A JP8874178 A JP 8874178A JP S5515369 A JPS5515369 A JP S5515369A
- Authority
- JP
- Japan
- Prior art keywords
- angle
- leading part
- cup
- cylinder
- cylinder wall
- 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)
- Sealing With Elastic Sealing Lips (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
PURPOSE: To scheme to improve brake feeling and increase the life by specifying the angle of the leading part against a cylinder shaft and the form of the top end part of the leading part.
CONSTITUTION: As for a piston cup 100, the leading part 106 of outer circumferential side sealing surface of the outside lip 101 is inclined at an angle θ for the line parallel to the cylinder shaft, reducing said angle θ smaller than the angle α of the residual part, and the top end part 107 of the leading part 106 is cut at the point S at an angle β, and an edge part is formed at the point S. Thus, when the piston cup 100 is inserted between the cylinder and the piston, the leading part 106 is parted at a relatively small tilt angle from the cylinder wall, and when the cup 100 slides on the cylinder wall, the leading part 106 forms an oil membrane in wedge form against the cylinder wall surface, displaying fluid lubrication action, and a thin fluid membrane is formed between the cylinder wall and the cup 100, and the decrease or the disappearance of fluid lubrication action is prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53088741A JPS5925905B2 (en) | 1978-07-20 | 1978-07-20 | piston cup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53088741A JPS5925905B2 (en) | 1978-07-20 | 1978-07-20 | piston cup |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5515369A true JPS5515369A (en) | 1980-02-02 |
JPS5925905B2 JPS5925905B2 (en) | 1984-06-22 |
Family
ID=13951335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53088741A Expired JPS5925905B2 (en) | 1978-07-20 | 1978-07-20 | piston cup |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5925905B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60115767U (en) * | 1984-01-17 | 1985-08-05 | トヨタ自動車株式会社 | master cylinder |
JPS62144831U (en) * | 1986-03-08 | 1987-09-12 |
-
1978
- 1978-07-20 JP JP53088741A patent/JPS5925905B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60115767U (en) * | 1984-01-17 | 1985-08-05 | トヨタ自動車株式会社 | master cylinder |
JPS62144831U (en) * | 1986-03-08 | 1987-09-12 | ||
JPH0221464Y2 (en) * | 1986-03-08 | 1990-06-11 |
Also Published As
Publication number | Publication date |
---|---|
JPS5925905B2 (en) | 1984-06-22 |
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