Apparatus for producing a grid for a battery plate, and method of producing the same
AssigneeGS Yuasa Corporation
InventorsYoshiomi Fujiwara, Hiroyuki Tanaka, Tadashi Nishida
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Abstract
A method where two disk cutter rolls are used to form slits in a staggered pattern in a metal sheet; disk cutters are part of the disk cutter rolls; ridges are arranged in a peripheral edge of the disk cutters; and valleys are arranged between the ridges, where an axis-to-axis distance L (mm) of the rolls satisfies a relationship of 2r−0.3≦L<2r when a radius of a reference circumferential face made with the valleys is r (mm). The method can include a carrying procedure for passing the sheet between the rolls, then carrying the sheet along a peripheral face of one of the rolls, and then pulling out the sheet from the peripheral face.
Claims3
A method for producing a lead acid battery, comprising:
- passing a metal sheet between only two disk cutter rolls to form slits in said metal sheet in a staggered pattern;
- then carrying said metal sheet along a peripheral face of one of said disk cutter rolls;
- then pulling out said metal sheet from said peripheral face in a tangential direction to said peripheral face, wherein said tangential direction is tangent to said peripheral face at a point where said metal sheet is detached from said peripheral face;
- and
- then producing a lead acid battery by using said metal sheet as a grid for an electrode, wherein
- a plane defined by axes of rotation of said disk cutter rolls and a plane perpendicular to said tangential direction define an angle θ which ranges from 5 degrees to 90 degrees.
Dependencies are inferred from the claim text.