Patent ID: 11906035
Assignee: JATCO LTD
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 10:
11. A power transmission device comprising:
a pinion gear having a large pinion gear and a small pinion gear;
a wall part that overlaps a revolution orbit of the large pinion gear in an axial direction;
a plate that is provided between the wall part and the large pinion gear; and
a bottom part provided on a lower part of the plate and a lower part of the revolution orbit of the large pinion gear with a clearance being interposed, wherein
a space on a wall part side of the plate and a space on a large pinion gear side of the plate in the axial direction are in communication with each other via the clearance positioned at the lower part of the plate,
the large pinion gear is a helical gear, and
a helical tooth orientation of the helical gear is set in a direction that introduces lubricating oil to a wall part side in accordance with auto-rotation of the large pinion gear.