Terminal portion for storage batteries, plastic encapsulated terminal for storage batteries, method for producing the same, storage battery provided with terminal portion, and automobile equipped with storage battery

Abstract

A storage battery includes a terminal portion for storage batteries having a plurality of bolt insertion holes bored in one or a plurality of directions, a nut insertion opening through which a nut is inserted, a hollow in communication with the bolt insertion holes and the nut insertion opening and the nut having at least one screw hole threaded in a direction coincident with at least one or the plurality of directions. A fixation portion is formed to fix the nut by deforming the terminal portion with the nut being inserted through the nut insertion opening into the hollow and the at least one screw hole of the nut being in communication respectively with the at least one of the plurality of bolt insertion holes.

1 - 15 . (canceled) 
     
     
         16 . A storage battery comprising: a terminal portion for storage batteries having a plurality of bolt insertion holes bored in one or a plurality of directions, a nut insertion opening through which a nut is inserted, and a hollow in communication with the bolt insertion holes and the nut insertion opening; and the nut having at least one screw hole threaded in a direction coincident with the at least one or a plurality of directions, wherein the terminal portion further comprising a fixation portion formed to fix the nut. 
     
     
         17 . The storage battery according to  claim 16 , wherein the fixation portion is a projecting portion projecting in the hollow direction in a part, facing the hollow, on an inner surface of the terminal portion. 
     
     
         18 . The storage battery according to  claim 16 , wherein the fixation portion is a part of the nut insertion opening that is narrowed after the nut is inserted into the hollow of the terminal portion. 
     
     
         19 . The storage battery according to  claim 18 , wherein the hollow of the terminal portion is elongated in a direction in which the nut is inserted, and the nut is arranged at a position on the back side, as seen from the nut insertion opening of the hollow of the terminal portion. 
     
     
         20 . The storage battery according to  claim 16 , wherein the fixation portion is a part of a sidewall or ceiling of the terminal portion in which a recess is provided after the nut is inserted into the hollow of the terminal portion. 
     
     
         21 . The storage battery according to  claim 16 , wherein the plurality of bolt insertion holes are bored at such positions as not to intersect each other within the hollow of the terminal portion, and the plurality of screw holes of the nut are formed at such positions as not to intersect each other. 
     
     
         22 . The storage battery according to  claim 16 , wherein the plurality of bolt insertion holes are bored at such positions as to intersect each other within the hollow of the terminal portion, and the plurality of screw holes of the nut are formed at such positions as to intersect each other. 
     
     
         23 . The storage battery according to  claim 16 , wherein the hollow of the terminal portion has a large width at the nut insertion opening and a reduced width on the back side. 
     
     
         24 . The storage battery according to  claim 16 , wherein the storage battery comprises a plastic encapsulated terminal for storage batteries comprising: the terminal portion; a pole portion coupled to a lower end of the terminal portion; and a plastic portion surrounding a circumferential surface of the pole portion. 
     
     
         25 . The storage battery according to  claim 16 , wherein the nut is fixed to the terminal portion by a friction force. 
     
     
         26 . The storage battery according to  claim 16 , wherein a bottom of the terminal portion is formed so as to have a part with a reduced thickness. 
     
     
         27 . The storage battery according to  claim 26 , wherein a hole is provided at the bottom of the terminal portion. 
     
     
         28 . The storage battery according to  claim 27 , wherein the bottom of the terminal portion is deformed by a plastic injected through the hole. 
     
     
         29 . The storage battery according to  claim 16 , further comprising: a battery case inside of which is partitioned by partition walls into a plurality of cells and in which an electrode assembly is housed in each of the cells; and a cover lying over the battery case from above, wherein the cover comprises the terminal portion. 
     
     
         30 . An automobile equipped with the storage battery according to  claim 29 . 
     
     
         31 . A terminal portion for storage batteries comprising: a plurality of bolt insertion holes bored in one or a plurality of directions; a nut insertion opening through which a nut is inserted; a hollow in communication with the bolt insertion holes and the nut insertion opening; and a fixation portion formed to fix the nut.