| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost lubrication structure for transmissions, which is capable of increasing the amount of lubricating oil supplied to the site to be lubricated and preventing the occurrence of seizure and abrasion without increasing the number of parts compared to prior art, a low-cost lubrication structure for transmissions, which is capable of increasing the amount of lubricating oil supplied to the site to be lubricated and preventing the occurrence of seizure and abrasion without increasing the number of parts compared to the prior art. <P>SOLUTION: This lubrication structure 1 for transmissions is provided with a case 2 in which lubricating oil is enclosed and a gear-shifting mechanism, which has a prescribed gear-shifting function and which comprises: a rotating body (counter shaft 5) a portion of which is immersed in the lubricating oil retained in the bottom of the case 2, and which draws up some of the lubricating oil by the viscosity thereof when supported by the case 2 and rotated, and discharges the oil into the internal space by centrifugal force; and a site to be lubricated (synchronizing device 6) that is disposed above the rotating body 5 and requires lubricating oil. This lubrication structure 1 has, on the outer circumferential surface that approaches the rotating body 5 and the site 6 to be lubricated, a shape (protruding shape 81, 82) the outer diameter of which changes gradually in the axial direction AX2, and in the shape with the gradually changing outer diameter, the leading edge 83 of the protrusion where the outer diameter is large directly faces the site 6 to be lubricated. <P>COPYRIGHT: (C)2013,JPO&INPIT |
