JPS54105663A - Hydraulic cylinder piston - Google Patents

Hydraulic cylinder piston

Info

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
Application number
JP1162178A
Other languages
Japanese (ja)
Inventor
Susumu Arakawa
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 JP1162178A priority Critical patent/JPS54105663A/en
Publication of JPS54105663A publication Critical patent/JPS54105663A/en
Pending legal-status Critical Current

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
JP1162178A 1978-02-03 1978-02-03 Hydraulic cylinder piston Pending JPS54105663A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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