JPS57165232A - Manufacture of bag-shaped cushion - Google Patents

Manufacture of bag-shaped cushion

Info

Publication number
JPS57165232A
JPS57165232A JP56051537A JP5153781A JPS57165232A JP S57165232 A JPS57165232 A JP S57165232A JP 56051537 A JP56051537 A JP 56051537A JP 5153781 A JP5153781 A JP 5153781A JP S57165232 A JPS57165232 A JP S57165232A
Authority
JP
Japan
Prior art keywords
mold
foaming liquid
foam
original foaming
filled
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
JP56051537A
Other languages
Japanese (ja)
Inventor
Akio Kobayashi
Yasushi Iizuka
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.)
TOYO GOMU KAGAKU KOGYO KK
Toyo Quality One Corp
Original Assignee
TOYO GOMU KAGAKU KOGYO KK
Toyo Rubber Chemical Industrial 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 TOYO GOMU KAGAKU KOGYO KK, Toyo Rubber Chemical Industrial Co Ltd filed Critical TOYO GOMU KAGAKU KOGYO KK
Priority to JP56051537A priority Critical patent/JPS57165232A/en
Publication of JPS57165232A publication Critical patent/JPS57165232A/en
Pending 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To mold the titled molded object integrally without causing defectives by a method wherein a cavity part corresponding to a blind part into which original foaming liquid cannot flow is filled previously with foam and the original foaming liquid is injected into a mold. CONSTITUTION:A cavity part between an intermediate mold 3 and an upper mold 4 is filled in advance with foam 8. Next, original foaming liquid is injected into a lower mold 2, and the upper mold 4 is closed centering the intermediate mold 3. The original foaming liquid is expanded homogeneously in a cavity part 5 between both lower mold 2 and intermediate one 3 but cannot flow into a cavity part between both intermidiate mold 3 and upper one 4 which are connected through a jaw part 3a of the intermediate mold 3 because of a large flow resistance. However, this part is filled in advance with foam 8 and the foam 8 is mixed with the original foaming liquid to provide the back part 7 of a blind part 6 of a bag-shaped cushion body 1.
JP56051537A 1981-04-06 1981-04-06 Manufacture of bag-shaped cushion Pending JPS57165232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56051537A JPS57165232A (en) 1981-04-06 1981-04-06 Manufacture of bag-shaped cushion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56051537A JPS57165232A (en) 1981-04-06 1981-04-06 Manufacture of bag-shaped cushion

Publications (1)

Publication Number Publication Date
JPS57165232A true JPS57165232A (en) 1982-10-12

Family

ID=12889771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56051537A Pending JPS57165232A (en) 1981-04-06 1981-04-06 Manufacture of bag-shaped cushion

Country Status (1)

Country Link
JP (1) JPS57165232A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255407A (en) * 1984-05-31 1985-12-17 Ikeda Bussan Co Ltd Foam molding method
JPS62144909A (en) * 1985-12-19 1987-06-29 Inoue Mtp Co Ltd Manufacturing method of cushioning body with bag-shaped section

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4517809Y1 (en) * 1966-07-06 1970-07-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4517809Y1 (en) * 1966-07-06 1970-07-21

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255407A (en) * 1984-05-31 1985-12-17 Ikeda Bussan Co Ltd Foam molding method
JPH0474166B2 (en) * 1984-05-31 1992-11-25
JPS62144909A (en) * 1985-12-19 1987-06-29 Inoue Mtp Co Ltd Manufacturing method of cushioning body with bag-shaped section
JPH0548727B2 (en) * 1985-12-19 1993-07-22 Inoue Mtp Kk

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