| 摘要 |
PROBLEM TO BE SOLVED: To provide a lead acid storage battery having a lead bushing constituting the terminal part insertion molded in the battery outer package, which does not have a gap between the lead bushing and the resin constituting the battery outer package even by the rotating torque impressed on the terminal, and there is no leaking of the electrolyte in the area of the terminal part by securing airtightness and fluid-tightness in this portion, and which is superior in reliability. SOLUTION: This is a lead acid storage battery which has a plurality of ring-shape protrusions formed in flange shape on the outer circumference of the lead bushing, and in which the ring-shape protrusions are insertion molded on the battery outer package. It comprises a plurality of grooves constituted by mutually adjoining ring-shape protrusions and a first rib for stopping the rotation of the lead bushing is provided at one of the grooves, and a portion in which the angle made by the side face of this first rib and the bottom face of the above groove is an acute angle of less than 90°is provided. COPYRIGHT: (C)2004,JPO
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