Title:
穿孔刃、穿孔装置、画像形成装置及び後処理装置
Document Type and Number:
Japanese Patent JP7294532
Kind Code:
B2
Abstract:
An object of the present invention is to reduce loads during a punching process and to reduce punching time. A punching blade is provided with a blade edge portion including multiple peaks and multiple valleys formed alternately in a circumferential direction. A blade edge line of the blade edge portion has first areas corresponding to the valleys, second areas extending from the peaks to the valleys, and third areas connecting the first areas and the second areas. In a side view of the blade edge portion, the first areas form curved lines along first arcs having a center point on a punching axis, the second areas form curved lines along second arcs having center points located in areas between the punching axis and the highest points of the peaks, and the third areas form straight lines along common tangents to the first arcs and the second arcs.
Inventors:
Rina Okada
Application Number:
JP2022519907A
Publication Date:
June 20, 2023
Filing Date:
March 24, 2021
Export Citation:
Assignee:
Kyocera Document Solutions Inc.
International Classes:
B26F1/14; B26F1/34; G03G15/00
Domestic Patent References:
| JP201256040A |
Foreign References:
| WO2006038291A1 | ||||
| WO2013018428A1 | ||||
| US20050056133 |
Attorney, Agent or Firm:
Kazuyuki Tanemura
Hironobu Hanayama
Hironobu Hanayama