Patent ID: 7885578

Claim:
A grid electrode disposed facing a charge wire, the grid electrode comprising: a thin plate member containing: multiple apertures formed in a longitudinal direction on a surface of the thin plate member of the grid electrode, the surface facing the charge wire; and multiple linear patterns formed in the grid electrode in the longitudinal direction of the grid electrode to form each of the multiple apertures therebetween, the multiple linear patterns disposed at equally-shaped intervals in a lateral direction of the grid electrode; and fitting members having a U-shaped body provided at either end portion in the longitudinal direction of the thin plate member containing the multiple apertures, configured to engage respective hooks mounted on a scorotron charger including the grid electrode, wherein each of the fitting members includes a first arm and a second arm extending outwardly from the U-shaped body in the lateral direction to an end portion of the grid electrode to cause a tension force exerted in the longitudinal direction of the multiple apertures to be applied uniformly over the end portions of the thin plate member in the lateral direction of the fitting members, and wherein each of the fitting members includes a first end for engaging the respective hooks mounted on the charger, and a second end opposite the first end and located closer to the thin plate member along a longitudinal direction of the fitting member, wherein the first arm and second arm extend outwardly from the second end of the fitting member.