公开(公告)号：US12049376B2

公开(公告)日：2024-07-30

申请号：US17776096

申请日：2020-11-24

Applicant: DUPLO SEIKO CORPORATION

Inventor： Chikara Miyamoto

IPC: B31B70/26 ,  B65H45/16

CPC classification number: B65H45/16 ,  B65H2403/942 ,  B65H2404/15 ,  B65H2701/1123

Abstract: A paper folding device that folds a planar paper sheet while conveying the paper sheet along a paper sheet conveyance surface includes a pair of first conveyance rollers disposed on an upstream side in a paper sheet conveyance direction, a pair of second conveyance rollers disposed on a downstream side in the paper sheet conveyance direction, a switching gate plate installed on the paper sheet conveyance surface between both pairs of the rollers, a folding plate disposed above the switching gate plate, and a control unit that controls an operation of an entire device.

公开(公告)号：US12049056B2

公开(公告)日：2024-07-30

申请号：US17999724

申请日：2021-12-08

Applicant: DUPLO SEIKO CORPORATION

Inventor： Chikara Miyamoto

IPC: B31B70/52 ,  B31B70/26 ,  B65H45/30 ,  B31B160/10 ,  B43M5/04

CPC classification number: B31B70/52 ,  B31B70/261 ,  B65H45/30 ,  B31B2160/102 ,  B43M5/042 ,  B65H2601/10

Abstract: An object of the present invention is to ensure rigid formation of the folds of the protrusions of the paper sheet and smooth conveyance of the folding-processed paper sheet to the downstream side of the folding position in the paper conveyance direction without causing the problems such as jamming. A folding unit includes a lower guide plate arranged at a position facing a folding plate at the folding position, and an arrangement position of a turning shaft of the folding plate is vertically movable with respect to the lower guide plate.