Title:
PLASTIC SEALING MEMBER FOR PRIMARY BATTERY AND MANUFACTURE OF BUTTON TYPE PRIMARY BATTERY USING SUCH PLASTIC SEALING MEMBER
Document Type and Number:
Japanese Patent JPH01189853
Kind Code:
A
Abstract:
PURPOSE: To prevent vapor or electrolytic liquid from leaching from a carbon bar conductor, by using seal materials which has a projecting edge on the upper- side and elastic plastic material with a closed ring-shaped protrusion on the ring-shaped recessed part of bucket. CONSTITUTION: When a metal plus cap 5 is pushed onto a projecting edge of a plastic compact 2 until the flange-like edge of the cap 5 stops under a snap edge 4 formed in the projecting edge, an elastic plastic material 3 which is injection-molded as a closed ring-shaped protrusion is transformed into extremely small seal cross sections. When the projecting edge of the plastic compact 2 is bent onto the edge of the plus cap 5 with the edge of a metal jacket 8, the edge of a zinc can 9 slightly enters below of the plastic compact 2, on the other hand, the elastic plastic material 3 perfectly compresses the gap between the first support face and the plus cap 5 and is simultaneously pushed out to the carbon bar 7, and the seal material 1 forms a vapor shield and prevents electrolytic liquid from leaching.
Inventors:
KURAUSU RIYUTSUGEBERUKU
HORUSUTOOUDO YOOZE
HORUSUTOOUDO YOOZE
Application Number:
JP31215188A
Publication Date:
July 31, 1989
Filing Date:
December 12, 1988
Export Citation:
Assignee:
VARTA BATTERIE
International Classes:
H01M6/08; H01M50/184; H01M50/186; H01M50/193; (IPC1-7): H01M2/08
Domestic Patent References:
| JPS57154762A | 1982-09-24 | |||
| JPS5296323A | 1977-08-12 | |||
| JPS5511934A | 1980-01-28 |
Attorney, Agent or Firm:
Toshio Yano (1 outside)
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