| 摘要 |
<p>A coupling apparatus (40) includes plural fitting projections (16) projecting in an axial direction from plural circumferential positions on a distal end part (14b) of an annular coupling body (14), each projection having an engaging hook (18) projecting in one circumferential direction at a projecting end part thereof. The coupling body and the fitting projections are formed independently of each other, and the coupling apparatus includes a fixing structure (42) being independent of the coupling body and fitting projections and fixing the plural fitting projections to the plural positions on the distal end part. After inner peripheries (16a) of the plural fitting projections are placed on the outer periphery of the distal end part adjacent to an outward overhang (14d), the fixing structure is detachably fixed on the outer periphery in a side of the plural fitting projections axially opposing to the outward overhang and has an inward tapering surface (42a) fitted on an outward tapering surface (16d) of each fitting projection to fix the plural fitting projections at the predetermined positions on the outer periphery, and includes a cutout (42c) exposing the outward tapering surface of at least one fitting projection.</p> |
