Patent ID: 11873879
Assignee: AISIN TAKAOKA CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 2:
3. The flexible flywheel according to claim 1, wherein
the first spoke portion includes a first inner joining portion that joins the first portion of the inner surface of the shaft fastening portion and a first outer joining portion that joins the first portion of the inner surface of the inertia ring,
the second spoke portion includes a second inner joining portion that joins the second portion of the inner surface of the shaft fastening portion and a second outer joining portion that joins the second portion of the inner surface of the inertia ring,
the third spoke portion includes a third inner joining portion that joins the fifth portion of the inner surface of the shaft fastening portion and a third outer joining portion that joins the third portion of the inner surface of the inertia ring,
at least one of the first inner joining portion and the first outer joining portion includes side edges that have concave sections,
at least one of the second inner joining portion and the second outer joining portion includes side edges that have concave sections, and
at least one of the third inner joining portion and the third outer joining portion includes side edges that have concave sections.