JPS56134646A - Manufacturing method of cushion - Google Patents
Manufacturing method of cushionInfo
- Publication number
- JPS56134646A JPS56134646A JP3774580A JP3774580A JPS56134646A JP S56134646 A JPS56134646 A JP S56134646A JP 3774580 A JP3774580 A JP 3774580A JP 3774580 A JP3774580 A JP 3774580A JP S56134646 A JPS56134646 A JP S56134646A
- Authority
- JP
- Japan
- Prior art keywords
- concaves
- cushion
- space
- mold
- pressure
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/37—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers of foam-like material, i.e. microcellular material, e.g. sponge rubber
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
PURPOSE:To improve the yield and quality of a product, by forming concaves as an air reservoir with a specified volume in the upper mold, while putting primary liquid in the lower mold, and balancing the air pressure in the concaves with the pressure of a cushion in the space by closing both molds together hermetically. CONSTITUTION:Concaves 7 as an air reservoir, with a volume equal to 1-10% of a space 5 formed by upper and lower molds 4, 3, are formed on the molding face 6a of inner wall 6 of the upper mold 4 which composes, together with the lower mold 3, a forming mold 1 for a foamed cushion. Primary liquid 2a, sufficient for filling the space 5 with foam, is put in the lower mold 3 and hermetically covered with the upper mold 4 for foaming. As the liquid 2a rises, air pressure (P) in the concaves 7 is balanced with the foaming pressure (PO) of a formed cushion 2d at a boundary (L) between the concaves 7 and space 5. The surface of the cushion 2d at the boundary (L) is nearly smooth, without shrink marks or cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55037745A JPS6012205B2 (en) | 1980-03-24 | 1980-03-24 | Manufacturing method of cushion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55037745A JPS6012205B2 (en) | 1980-03-24 | 1980-03-24 | Manufacturing method of cushion body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56134646A true JPS56134646A (en) | 1981-10-21 |
| JPS6012205B2 JPS6012205B2 (en) | 1985-03-30 |
Family
ID=12506008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55037745A Expired JPS6012205B2 (en) | 1980-03-24 | 1980-03-24 | Manufacturing method of cushion body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012205B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11420728B2 (en) | 2018-06-19 | 2022-08-23 | Honda Motor Co., Ltd. | Aircraft and control method for same |
-
1980
- 1980-03-24 JP JP55037745A patent/JPS6012205B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6012205B2 (en) | 1985-03-30 |
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