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Patent Searching and Data


Title:
MANUFACTURE OF BASE BODY FOR LEAD ACID BATTERY
Document Type and Number:
Japanese Patent JPS56168361
Kind Code:
A
Abstract:

PURPOSE: To make use of all parts of a thin plate, and prevent any waste of the material by cutting the thin plate from its center to the end in such a manner that lags having the same length as an expanded part of the plate are formed, before the plate is subjected to expanding work.

CONSTITUTION: Lags 2 and 2' are provided at an alternating side of a thin plate 1 made of lead or a lead alloy by cutting the plate 1 from the center to each end of the plate 1 by press work. The lags 2 and 2' are bent from the ends of the cuts toward an expanding die in order to prevent the lags 2 and 2' from being expanded. After that, the plate 1 is expanded from its both sides. The plate 1 expanded is cut so that it is separated at the center of a frame bone 5, thus a base body being obtained. The lags 2 and 2' bent are restored to their former conditions before paste is packed into the base bodies.


Inventors:
Shimoda, Masakazu
Application Number:
JP1980000073596
Publication Date:
December 24, 1981
Filing Date:
May 30, 1980
Export Citation:
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Assignee:
SHIN KOBE ELECTRIC MACH CO LTD
International Classes:
B21D31/04; H01M4/74; (IPC1-7): H01M4/74; H01M4/82