| 摘要 |
PROBLEM TO BE SOLVED: To attain simplification of a structure and lightening of weight, by fixing the fellow split bosses with the split boss simultaneously with fixing the split boss and a shaft. SOLUTION: The boss structure is provided with a split boss 10, 10 dividing into two parts a boss main unit having a mounting hole 12 in the central part and a shaft 32 for transmission of power fixedly inserted in the mounting hole 12, the fellow of these two split bosses 10 is oppositely arranged and fixed by boats 26. This bolt 26 is concurrently used for fixing of the fellow split bosses 10 and for fixing of this split boss 10 and the shaft 32. In this way, in the case of fixing the shaft 32 to the boss main unit integrally formed with no split boss as in the past, necessity for tightening the boss main unit and the shaft 32 by the press bolt of exclusive use is eliminated. Moreover by only tightening the bolt 26, fixing of the fellow split bosses 10 and fixing of the split boss 10 and the shaft 32 are simultaneously performed, so that the structure is simplified, and weight of the total unit is lightened. |
