Title:
IRONING PUNCH
Document Type and Number:
WIPO Patent Application WO/2023/037703
Kind Code:
A1
Abstract:
Provided is an ironing punch 1 which is used for ironing metal, wherein dot-shaped recesses 3 are distributed on the outer circumferential surface 1a of the punch 1, and a raised section 5 is formed at at least a portion of the peripheral edge of the dot-shaped recesses.
Inventors:
KAMIYAMA KOTA (JP)
TAMURA MASAOMI (JP)
NAKAMURA TOMOHIKO (JP)
TAKAGI SHOHEI (JP)
TAMURA MASAOMI (JP)
NAKAMURA TOMOHIKO (JP)
TAKAGI SHOHEI (JP)
Application Number:
PCT/JP2022/025313
Publication Date:
March 16, 2023
Filing Date:
June 24, 2022
Export Citation:
Assignee:
TOYO SEIKAN CO LTD (JP)
International Classes:
B21D22/28; B21D51/26
Domestic Patent References:
| WO2017033791A1 | 2017-03-02 | |||
| WO2017033791A1 | 2017-03-02 |
Foreign References:
| JPS61209731A | 1986-09-18 | |||
| JP2006122993A | 2006-05-18 | |||
| JP3327137B2 | 2002-09-24 | |||
| JPS6213812A | 1987-01-22 | |||
| JPH07124656A | 1995-05-16 | |||
| JP2018069256A | 2018-05-10 | |||
| JP2018069256A | 2018-05-10 | |||
| JP3327137B2 | 2002-09-24 |
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
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