EP 4063037 A1 20220928 - PRESS-FORMING MOLD
Title (en)
PRESS-FORMING MOLD
Title (de)
PRESSFORMWERKZEUG
Title (fr)
MOULE DE FORMAGE À LA PRESSE
Publication
Application
Priority
- JP 2019209314 A 20191120
- JP 2020032025 W 20200825
Abstract (en)
The press forming tool 1 according to the present invention includes a punch 3 and a die 5 to press form a press forming product 11 including a punch bottom 13 and a shallow concave portion 15 in the punch bottom 13. The punch 3 includes a punch bottom forming surface 3a to form the punch bottom 13, a concave shape forming portion 3b formed in the punch bottom forming surface 3a to form the concave portion 15, and a low Young's modulus member installation region 3d formed under the punch bottom forming surface 3a and accommodating a low Young's modulus member 3c having a lower Young's modulus than that of the punch bottom forming surface 3a. The low Young's modulus member installation region 3d includes an area directly under the concave shape forming portion 3b and has a projected area A1 in the press forming direction that is 110% or greater as large as a projected area A2 of the concave shape forming portion 3b.
IPC 8 full level
B21D 37/01 (2006.01); B21D 24/00 (2006.01)
CPC (source: EP KR US)
B21D 22/02 (2013.01 - EP US); B21D 22/04 (2013.01 - EP); B21D 22/20 (2013.01 - EP); B21D 22/26 (2013.01 - US); B21D 24/04 (2013.01 - KR); B21D 37/01 (2013.01 - EP KR); B21D 37/08 (2013.01 - KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4063037 A1 20220928; EP 4063037 A4 20230111; CN 114728323 A 20220708; JP 2021079407 A 20210527; JP 7207276 B2 20230118; KR 20220082896 A 20220617; MX 2022005542 A 20220608; US 2022274151 A1 20220901; WO 2021100276 A1 20210527
DOCDB simple family (application)
EP 20888886 A 20200825; CN 202080078576 A 20200825; JP 2019209314 A 20191120; JP 2020032025 W 20200825; KR 20227016497 A 20200825; MX 2022005542 A 20200825; US 202017765669 A 20200825