Vehicle drive transmission device and vehicle drive device including same

A vehicle drive transmission device, comprising:

• a first friction plate and a second friction plate arranged in an axial direction;
• a friction clutch device including a press member configured to press the first friction plate and the second friction plate in the axial direction;
• a first support supporting the first friction plate from an outer side in a radial direction;
• a second support supporting the second friction plate from an inner side of the second support in the radial direction;
• and
• an intermediate member coupled to the second support in such a manner as to rotate integrally with the second support, wherein
• the first support is open toward a first side in the axial direction,
• the press member is at such a position as to press the first friction plate and the second friction plate from the first side in the axial direction,
• the intermediate member includes:
• a body between the press member and the second support in the axial direction;
• and
• a protrusion protruding toward the first side of the body in the axial direction;
• the press member has an insertion hole extending through the press member in the axial direction and configured to receive the protrusion,
• the second support includes a cylindrical support section which is formed in a cylinder extending in the axial direction and which supports the second friction plate,
• the intermediate member further includes a coupling portion which is formed in a cylinder extending in the axial direction and which is coupled to the cylindrical support section at the cylindrical support section while the intermediate member is adjacent to the cylindrical support section from the inner side,
• the protrusion protrudes from the coupling portion toward the first side in the axial direction,
• the cylindrical support section includes a first spline extending in the axial direction, the first spline disposed at an inner circumferential portion of the cylindrical support section, and
• the coupling portion includes a second spline extending in the axial direction, the second spline disposed at an outer circumferential portion of the coupling portion to engage with the first spline.