公开(公告)号：US20200306813A1

公开(公告)日：2020-10-01

申请号：US16794205

申请日：2020-02-18

Applicant: KUO-CHUNG CHENG

Inventor： KUO-CHUNG CHENG

IPC: B21D28/26 ,  B23D15/00 ,  B23D29/02 ,  B26D1/30 ,  B26D5/10

Abstract: A sheet cutting and bending apparatus for cutting a wavy sheet and forming trapezoidal notches required for installation includes a base, two cutters at an end of the base, and a force applying mechanism for driving the two cutters. A knife of the cutters has no handle but just has a curved force receiving edge at the rear edge. The force applying mechanism has two rocker aims driven by a rocker rod and a force applying rod bridging between the two rocker arms for abutting a force receiving edge of the knife to produce a shear force and pushing the knife efficiently to cut two incisions at an edge of the sheet. In addition, a bending mechanism is linked with the force applying mechanism and provided for flipping a plate between the two incisions inwardly to form trapezoidal notches required for installation at the edge of the sheet.