| 摘要 |
PURPOSE:To simply install the communicating passage of a lubricating passage in a crank case having a complicated shape, by a method wherein the lubricating passages of the main shaft and the drive shaft of a transmission gear pivotally supported to a crank case are intercommunicated through a bypass pipe. CONSTITUTION:Lubricating oil is first fed to a lubricating passage 24 of a main shaft 13 through an introduction passage 33 by means of a lubricating passage 32 of a crank case. In which case, the lubricating oil is fed through a branch hole 30 to a bearing 26 and a groove part 28 of a transmission gear 19 to lubricate their respective sliding part. The lubricating oil is fed to an introduction passage 35 of the crank case through an injection pipe part 36a and a coupling pipe part 36b of a bypass pipe 36 by means of a coupling passage 34. In which case, the lubricating oil is injected through an injection nozzle 38 to lubricate the sliding parts of the main shaft 13 and a drive shaft 14 and the like. The lubricating oil, flowing through the drive shaft 14 and a lubricating passage 25, is fed to a bearing 27 and a groove part 29 of a transmission gear group 20 through a branch hole 31. |
