JPS6157172B2 - - Google Patents

Info

Publication number
JPS6157172B2
JPS6157172B2 JP56083596A JP8359681A JPS6157172B2 JP S6157172 B2 JPS6157172 B2 JP S6157172B2 JP 56083596 A JP56083596 A JP 56083596A JP 8359681 A JP8359681 A JP 8359681A JP S6157172 B2 JPS6157172 B2 JP S6157172B2
Authority
JP
Japan
Prior art keywords
holder
core metal
molding
holder pins
pins
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.)
Expired
Application number
JP56083596A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57197140A (en
Inventor
Masahiro Takeya
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.)
TAKEYA KAGAKU KOGYO KK
Original Assignee
TAKEYA KAGAKU KOGYO KK
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 TAKEYA KAGAKU KOGYO KK filed Critical TAKEYA KAGAKU KOGYO KK
Priority to JP56083596A priority Critical patent/JPS57197140A/ja
Publication of JPS57197140A publication Critical patent/JPS57197140A/ja
Publication of JPS6157172B2 publication Critical patent/JPS6157172B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Ladders (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP56083596A 1981-05-29 1981-05-29 Manufacture of step Granted JPS57197140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56083596A JPS57197140A (en) 1981-05-29 1981-05-29 Manufacture of step

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56083596A JPS57197140A (en) 1981-05-29 1981-05-29 Manufacture of step

Publications (2)

Publication Number Publication Date
JPS57197140A JPS57197140A (en) 1982-12-03
JPS6157172B2 true JPS6157172B2 (de) 1986-12-05

Family

ID=13806868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56083596A Granted JPS57197140A (en) 1981-05-29 1981-05-29 Manufacture of step

Country Status (1)

Country Link
JP (1) JPS57197140A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3080204U (ja) * 2001-03-12 2001-09-21 三山工業株式会社 マンホ―ル等用足掛具

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310137U (de) * 1976-07-09 1978-01-27
JPS54139961A (en) * 1978-04-24 1979-10-30 Daifuku Machinery Works Method of forming reinforced plastic surface type member
JPS5541547U (de) * 1978-09-11 1980-03-17

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5310137U (de) * 1976-07-09 1978-01-27
JPS54139961A (en) * 1978-04-24 1979-10-30 Daifuku Machinery Works Method of forming reinforced plastic surface type member
JPS5541547U (de) * 1978-09-11 1980-03-17

Also Published As

Publication number Publication date
JPS57197140A (en) 1982-12-03

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