JPS54105663A - Hydraulic cylinder piston - Google Patents
Hydraulic cylinder pistonInfo
- Publication number
- JPS54105663A JPS54105663A JP1162178A JP1162178A JPS54105663A JP S54105663 A JPS54105663 A JP S54105663A JP 1162178 A JP1162178 A JP 1162178A JP 1162178 A JP1162178 A JP 1162178A JP S54105663 A JPS54105663 A JP S54105663A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- piston
- seal groove
- trace
- side face
- 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
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
PURPOSE: To remain no mold-separation trace on a seal groove of undercut or firction face by molding two-separated cylinder pieces.
CONSTITUTION: A piston 10 constitutes of a portion 11 which consists of a friction part 10b, one side face A of a seal groove 10a, and the bottom part B and the other part 12 which consists of another side face c of the seal groove 10a and an extended piston part including no friction part. After those piston pieces 11, 12 are independantly molded, they are fit under pressure into one body to make up a piston 10. The independant molding remains no mold-trace on another side face C of the seal groove 10a. After the part 11 is molded, the mold (E) is removed and the part 11 is taken out from the left side of the mold (D) by knocking so that mold-seperation trace does not remain on the throughout surface. The high-performance piston body 10 can be supplied.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1162178A JPS54105663A (en) | 1978-02-03 | 1978-02-03 | Hydraulic cylinder piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1162178A JPS54105663A (en) | 1978-02-03 | 1978-02-03 | Hydraulic cylinder piston |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54105663A true JPS54105663A (en) | 1979-08-18 |
Family
ID=11782984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1162178A Pending JPS54105663A (en) | 1978-02-03 | 1978-02-03 | Hydraulic cylinder piston |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54105663A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4456760A (en) * | 1981-04-15 | 1984-06-26 | Mitsui Toatsu Chemicals, Incorporated | Process for the preparation of indoles |
-
1978
- 1978-02-03 JP JP1162178A patent/JPS54105663A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4456760A (en) * | 1981-04-15 | 1984-06-26 | Mitsui Toatsu Chemicals, Incorporated | Process for the preparation of indoles |
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