公开(公告)号：US20220218534A1

公开(公告)日：2022-07-14

申请号：US17610209

申请日：2020-04-07

Applicant: ZUIKO CORPORATION

Inventor： Asuka MINAMI ,  Miwa KOSHIJIMA

IPC: A61F13/15 ,  A61F13/49

Abstract: Provided is a manufacturing apparatus for manufacturing a composite stretchable member capable of improving a function of preventing cutting by reducing a defect in which an elastic member is detached from a groove of a conveying roller. The manufacturing apparatus includes a guide device that guides the two sheets and the elastic members to a bonding device. The guide device includes a guide member that guides the elastic members to respective multiple grooves on an outer peripheral surface of a conveying roller of the bonding device. The guide member is provided at its leading end with multiple guide grooves for holding the corresponding elastic members. The guide member is disposed to allow the elastic members positioned between the guide grooves and the corresponding grooves of the conveying roller to each have a length of 30 mm or less.

公开(公告)号：US20240359448A1

公开(公告)日：2024-10-31

申请号：US18292117

申请日：2022-07-27

Applicant: ZUIKO CORPORATION

Inventor： Yukihiko FUJITA ,  Asuka MINAMI

IPC: B32B37/00 ,  B32B37/20 ,  B32B38/18 ,  B32B41/00

CPC classification number: B32B37/0053 ,  B32B37/20 ,  B32B38/1833 ,  B32B41/00 ,  B32B2307/51 ,  B32B2555/02

Abstract: A manufacturing device includes a guiding part that guides an elastic member between a pair of sheets conveyed by a pair of nip rolls; a moving mechanism that reciprocates the guiding part along a moving path; and a reciprocation control part. The moving mechanism has a first rotation member that is rotatable about a first rotation center shaft and capable of changing a first rotation radius connecting the guiding part and the first rotation center shaft to each other, and a second rotation member that is rotatable about a second rotation center shaft, connected to the first rotation member so as to be rotatable each other, and capable of changing a second rotation radius connecting the guiding part and the second rotation center shaft to each other. The reciprocation control part synchronizes rotation of the first rotation member and rotation of the second rotation member with each other.

公开(公告)号：US20230405914A1

公开(公告)日：2023-12-21

申请号：US18036274

申请日：2021-11-24

Applicant: ZUIKO CORPORATION

Inventor： Asuka MINAMI ,  Yasutaka TANAKA

IPC: B29C55/06 ,  B65H23/188 ,  B65H23/192 ,  D06C3/06 ,  B29C55/18

CPC classification number: B29C55/06 ,  B65H23/1888 ,  B65H23/192 ,  D06C3/06 ,  B29C55/18 ,  B65H2404/14

Abstract: A sheet manufacturing method includes a conveying step of conveying a base material sheet; and a processing step of rotating a pair of processing rolls to sandwich a conveyance path on which the base material sheet is conveyed, wherein irregular portions along respective outer peripheral faces of the processing rolls engage with each other with a clearance to stretch the base material sheet when the base material sheet passes between the processing rolls. In the conveying step, the base material sheet is conveyed such that the base material sheet contacts along the outer peripheral face of one of the processing rolls immediately prior to passing between the processing rolls; and the tension in the conveyance direction applied to the base material sheet immediately prior to reaching the outer peripheral face of the one of the processing rolls is less than 10% of a breaking load of the base material sheet.