JPS56157314A - Vacuum forming method - Google Patents

Vacuum forming method

Info

Publication number
JPS56157314A
JPS56157314A JP6094180A JP6094180A JPS56157314A JP S56157314 A JPS56157314 A JP S56157314A JP 6094180 A JP6094180 A JP 6094180A JP 6094180 A JP6094180 A JP 6094180A JP S56157314 A JPS56157314 A JP S56157314A
Authority
JP
Japan
Prior art keywords
sheet
mold
forming
vacuum forming
nearly horizontally
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
Application number
JP6094180A
Other languages
Japanese (ja)
Other versions
JPS6233934B2 (en
Inventor
Kiyoto Dezuki
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.)
Meiwa Corp
Original Assignee
Meiwa Corp
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 Meiwa Corp filed Critical Meiwa Corp
Priority to JP6094180A priority Critical patent/JPS56157314A/en
Publication of JPS56157314A publication Critical patent/JPS56157314A/en
Publication of JPS6233934B2 publication Critical patent/JPS6233934B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To remove defects due to the sag of forming material by a method wherein the forming material is positioned on a contractible, elastic sheet stretched under a mold and held nearly horizontally by thd stretching force of the sheet and vacuum forming is performed in contact with a mold.
CONSTITUTION: A mold 1 for vacuum forming is arranged with its forming surface down and a sheet 3 rich in contractibity and elasticity is arranged nearly horizontally under the mold. In order to perform the vacuum forming, a heated and softened forming material (m) is mounted on the upper surface of the sheet 3, the forming material (m) is held nearly horizontally by the tensile strength of the sheet 3, the mold 1 and the sheet 3 are moved relatively and are brought into contact with each other. Even the material under the molten or excessively softened state can be treated smootly by the vacuum forming without raising problems of wrinkles and irregular thickness, etc. of a formed product caused by the sag of the material.
COPYRIGHT: (C)1981,JPO&Japio
JP6094180A 1980-05-08 1980-05-08 Vacuum forming method Granted JPS56157314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6094180A JPS56157314A (en) 1980-05-08 1980-05-08 Vacuum forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6094180A JPS56157314A (en) 1980-05-08 1980-05-08 Vacuum forming method

Publications (2)

Publication Number Publication Date
JPS56157314A true JPS56157314A (en) 1981-12-04
JPS6233934B2 JPS6233934B2 (en) 1987-07-23

Family

ID=13156900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6094180A Granted JPS56157314A (en) 1980-05-08 1980-05-08 Vacuum forming method

Country Status (1)

Country Link
JP (1) JPS56157314A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2574108A (en) * 2018-03-29 2019-11-27 Mclaren Automotive Ltd Diaphragm forming
JP2020114651A (en) * 2019-01-18 2020-07-30 株式会社ミマキエンジニアリング Method for manufacturing foam object, apparatus for manufacturing foam object, and foaming apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974261A (en) * 1972-11-17 1974-07-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974261A (en) * 1972-11-17 1974-07-17

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2574108A (en) * 2018-03-29 2019-11-27 Mclaren Automotive Ltd Diaphragm forming
GB2574108B (en) * 2018-03-29 2021-01-13 Mclaren Automotive Ltd Diaphragm forming
US11826969B2 (en) 2018-03-29 2023-11-28 Mclaren Automotive Limited Diaphragm forming
JP2020114651A (en) * 2019-01-18 2020-07-30 株式会社ミマキエンジニアリング Method for manufacturing foam object, apparatus for manufacturing foam object, and foaming apparatus

Also Published As

Publication number Publication date
JPS6233934B2 (en) 1987-07-23

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