| 摘要 |
<p>A can stock sheet (19) formed of a rectangular-shaped metallic sheet is formed at both end corners of only one side edge (19a) thereof with notches (21a, 21b). An outer can (18) is obtained by bending the can stock sheet (19) in cylindrical configuration, subjecting opposite side edges (19a, 19b) of the sheet to butt processing to form a butt portion (10), and subjecting a peripheral edge of a lower end (19c) to an inner curling caulking processing to form a bottom portion. After charging a stock cell (26) in the outer can (18), a peripheral edge of an upper end (19d) on the outer can (18) is subjected to curling caulking processing to be bent inward, so that a curled butt portion (20) where the notch (21a) and an upper end of the other (19a) of the side edges butt at each other is formed in a direction (S) different from a diametrical direction (R) of the outer can (18). Accordingly, it is possible to manufacture with good productivity a dry cell having a construction where no dent develops due to buckling at the time of curling caulking processing of the outer can (18).</p> |
