| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a synchronous meshing device for a vehicle manual transmission for reducing the occurrence of abnormal noise due to insufficient lubrication. <P>SOLUTION: A gear piece 26 includes a plurality of annular grooves 60 formed in the axial center C direction on the inner circumferential face of a cylindrical projection part 50, and a through-hole 62 formed through from the bottom face of the annular groove 60 on the tip side of the cylindrical projection part 50 to the smaller-diameter side of a taper outer circumferential face 48 of the cylindrical projection part 50. Regardless of the stopping position of the through-hole 62, a lubricating oil stored in any of a plurality of annular grooves 60 is supplied to the small-diameter side of the taper outer circumferential face 48 via the through-hole 62. Consequently, even if the lubricating oil in the annular groove 60 wherein the through-hole 62 is formed flows out since the rotation of the gear piece 26 stops with the through-hole 62 positioned downward, the lubricating oil is supplied from another annular groove 60 during the rotation of the gear piece 26, and the occurrence of abnormal noise due to insufficient lubrication can be suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
