Title:
METHOD FOR PUNCHING OUT ROUND-SHAPED MEMBERS AND ROLL USED FOR PUNCHING
Document Type and Number:
WIPO Patent Application WO/2021/205897
Kind Code:
A1
Abstract:
A method for punching out round-shaped members according to the present invention is for producing round-shaped members, in which a long and wide roll is punched out in multiple widthwise rows thereof to obtain a plurality of round-shaped members. In the method, round-shaped members are punched out from the roll in which one row from which a plurality of round-shaped members are to be punched out and a row adjacent thereto are so arranged as to cause the rows to have at least one of the longitudinal sides in a wavy shape formed by wavily cutting between the rows along the outlines of the round-shaped members in the inter-row area in such a manner that the longitudinal positions of the round-shaped members in the one row are out of alignment with those in the other row.
Inventors:
TAKANO AKIRA (JP)
Application Number:
PCT/JP2021/012680
Publication Date:
October 14, 2021
Filing Date:
March 25, 2021
Export Citation:
Assignee:
TAKANO AKIRA (JP)
International Classes:
B26F1/00; B26D9/00; B26F1/44; B31B50/16
Domestic Patent References:
| WO2016069755A1 | 2016-05-06 |
Foreign References:
| JPS5023932U | 1975-03-18 | |||
| JPH02307738A | 1990-12-20 | |||
| JP2012240695A | 2012-12-10 | |||
| JPH09277196A | 1997-10-28 |
Download PDF: