Title:
穿孔ローラおよび穿孔装置
Document Type and Number:
Japanese Patent JP6760143
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a perforating roller having an enhanced perforating property with respect to a nonwoven fabric, by using a perforating roller with pins on its outer periphery and a counter roller.SOLUTION: The perforating roller includes an outer peripheral part provided with perforating members 80 having a tip portion 81 for piercing a nonwoven fabric and gradually expanding the pierced hole to perforate an expanded hole, and rotates in a prescribed rotational direction. The tip portions 81 of the perforating members 80 are inclined to be positioned more on a downstream side in the rotational direction of the perforating roller as a respective center of cross sections crossing the gradually expanding pierced holes approaches a piercing direction.SELECTED DRAWING: Figure 4
Inventors:
Toshihiro Noda
Yoshio Fujimura
Yoshio Fujimura
Application Number:
JP2017044214A
Publication Date:
September 23, 2020
Filing Date:
March 08, 2017
Export Citation:
Assignee:
Oji Holdings Co., Ltd.
International Classes:
B26F1/24; A61F13/15; A61F13/51; A61F13/533; D04H1/736
Domestic Patent References:
| JP2013500175A | ||||
| JP8260329A | ||||
| JP57028900U | ||||
| JP4074854B2 | ||||
| JP2013085759A | ||||
| JP52031786Y2 | ||||
| JP2012149371A |
Foreign References:
| US20060087053 | ||||
| WO2017002486A1 |
Attorney, Agent or Firm:
Yu Sanada