Lubricating device of gear apparatus for vehicle

A lubricating device of a gear apparatus for a vehicle,

• the lubricating device comprising:
• a first tooth surface lubricating oil supply part including a lubricating oil supply pipe including a nozzle in a vertically lower part of the lubricating oil supply pipe;
• and
• an in-shaft lubricating oil supply part,
• wherein:
• the lubricating device is configured to lubricate a low-rotation-side gear and a high-rotation-side gear that meshes with the low-rotation-side gear,
• when the low-rotation-side gear has a first rotational angle range that is:
• (i) located vertically above a horizontal plane defined by a rotary axial line of the low-rotation-side gear, and (ii) set to be from 0° to 180° in a rotating direction of the low-rotation-side gear from upstream to downstream, a meshing position of the low-rotation-side gear with the high-rotation-side gear is located within a second rotational angle range that is included in the first rotational angle range, and the second rotational angle range is equal to or larger than 90° and less than 180°,
• the first tooth surface lubricating oil supply part is configured to supply a lubricating oil directly to a first tooth surface position of the low-rotation-side gear located upstream of the meshing position in the rotating direction of the low-rotation-side gear so as to spray some of the lubricating oil from the first tooth surface position of the low-rotation-side gear toward a first tooth surface of the high-rotation-side gear,
• the lubricating oil supply pipe is:
• (i) configured to supply the lubricating oil from the nozzle vertically downward and directly to the first tooth surface position of the low-rotation-side gear, and (ii) located within a third rotational angle range that is included in the first rotational angle range, and the third rotational angle range is equal to or larger than 0° and is less than 90°, wherein the first tooth surface position of the low-rotation-side gear is arranged such that in the plane orthogonal to respective rotary axial lines of the low-rotation-side gear and the high-rotation-side gear, the tangential line passing through the first tooth surface position of the low-rotation-side gear on an addendum circle of the low-rotation-side gear is set to pass through the rotary axial line of the high-rotation-side gear and
• the in-shaft lubricating oil supply part is configured to supply the lubricating oil into a shaft of the high-rotation-side gear.