Title:
MATERIAL FORMING APPARATUS AND MATERIAL FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/157807
Kind Code:
A1
Abstract:
A material forming apparatus according to an embodiment of the present invention comprises: a support which is positioned at a side of a forming tool with respect to a material arranged on the forming tool to have a first portion covered by the forming tool and a second portion separated from the forming tool, and which supports the forming tool; a diaphragm which presses the second portion of the material while the outer surface of the expanded diaphragm comes in close contact therewith, in a state in which the first portion of the material is compressed by the forming tool and the outer surface of the diaphragm; and a volume-varying member which is disposed near the forming tool between the diaphragm and the support so that at least a portion thereof is positioned on the second portion of the material, and which restricts the generation of wrinkles on the material and allows the second portion of the material to approach the forming tool according to the continuous expansion of the diaphragm in a state in which the second portion of the material is compressed onto the surface of the volume-varying member by the diaphragm and the second portion is compressed by the diaphragm and the volume-varying member.
Inventors:
CHEY SUK YOUNG (KR)
Application Number:
PCT/KR2020/012251
Publication Date:
August 12, 2021
Filing Date:
September 10, 2020
Export Citation:
Assignee:
CHEY SUK YOUNG (KR)
International Classes:
B29C51/28; B29C51/26; B29C51/42; B29C70/06; B29K105/08
Foreign References:
| JP2012218436A | 2012-11-12 | |||
| JP2019162758A | 2019-09-26 | |||
| JPH11138624A | 1999-05-25 | |||
| JPH05293895A | 1993-11-09 | |||
| JP2006137066A | 2006-06-01 |
Other References:
See also references of EP 4101620A4
Attorney, Agent or Firm:
JIDAM IP LAW FIRM (KR)
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