JPS55126413A - Drawing method for synthetic resin sheet - Google Patents
Drawing method for synthetic resin sheetInfo
- Publication number
- JPS55126413A JPS55126413A JP3488679A JP3488679A JPS55126413A JP S55126413 A JPS55126413 A JP S55126413A JP 3488679 A JP3488679 A JP 3488679A JP 3488679 A JP3488679 A JP 3488679A JP S55126413 A JPS55126413 A JP S55126413A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- synthetic resin
- resin sheet
- slits
- notches
- 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
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To prevent damages such as cracks due to large local elongation by drawing a synthetic resin sheet having slits or notches which have been imparted with upper and lower dies while it is heated and softened.
CONSTITUTION: A synthetic resin sheet 1 with notches 2 such as slits which have been prepared is heated and softened, formed with upper and lower drawing dies and local elongation which appears in forming is absorbed. For example, notches 2 such as slits are given beforehand on a composite sheet 1 which is obtained by sticking a leather sheet 1a of polyvinyl chloride, etc. and a foam substance sheet 1b of polypropylene foam substance, etc. to each other up and down. Then, the sheet 1 is drawn, a notch 2 is located at a valley part 2' and a product is obtained by removing this valley part 2' so that the notch 2 does not appear on the product. It is preferable to give the notch 2 at a deep drawing part where large elongation is estimated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3488679A JPS5915287B2 (en) | 1979-03-24 | 1979-03-24 | Drawing processing method for synthetic resin sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3488679A JPS5915287B2 (en) | 1979-03-24 | 1979-03-24 | Drawing processing method for synthetic resin sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55126413A true JPS55126413A (en) | 1980-09-30 |
JPS5915287B2 JPS5915287B2 (en) | 1984-04-09 |
Family
ID=12426620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3488679A Expired JPS5915287B2 (en) | 1979-03-24 | 1979-03-24 | Drawing processing method for synthetic resin sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5915287B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085924A (en) * | 1983-10-17 | 1985-05-15 | Sekisui Plastics Co Ltd | Manufacture of packing tray with ventilation hole |
JPS60179221A (en) * | 1984-01-30 | 1985-09-13 | Nippon Plast Co Ltd | Press molding method of synthetic resin sheet |
US5453240A (en) * | 1992-09-22 | 1995-09-26 | Reydel, S.A. | Process for manufacturing a multilayer object by moulding |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4927470B2 (en) * | 2006-08-09 | 2012-05-09 | カルソニックカンセイ株式会社 | Resin sheet for vacuum forming |
-
1979
- 1979-03-24 JP JP3488679A patent/JPS5915287B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6085924A (en) * | 1983-10-17 | 1985-05-15 | Sekisui Plastics Co Ltd | Manufacture of packing tray with ventilation hole |
JPS60179221A (en) * | 1984-01-30 | 1985-09-13 | Nippon Plast Co Ltd | Press molding method of synthetic resin sheet |
US5453240A (en) * | 1992-09-22 | 1995-09-26 | Reydel, S.A. | Process for manufacturing a multilayer object by moulding |
Also Published As
Publication number | Publication date |
---|---|
JPS5915287B2 (en) | 1984-04-09 |
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