JPS57165232A - Manufacture of bag-shaped cushion - Google Patents
Manufacture of bag-shaped cushionInfo
- 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
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
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4517809Y1 (en) * | 1966-07-06 | 1970-07-21 |
-
1981
- 1981-04-06 JP JP56051537A patent/JPS57165232A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4517809Y1 (en) * | 1966-07-06 | 1970-07-21 |
Cited By (4)
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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