| 摘要 |
A paint roller frame and plastic cage assembly, the cage assembly comprising a plurality of circumferentially spaced, axially extending support rails joined together at their ends by inboard and outboard end caps and also intermediate their ends by one or more annular support members. The cage assembly is mounted for limited axial movement in opposite directions on the roller frame shaft, during which cam members on the radial inner walls of the support rails move into and out of engagement with an outer annular surface on a hub assembly mounted on the shaft, which causes portions of the rails to flex outwardly and inwardly into and out of frictional engagement with a roller cover when inserted over the cage assembly.
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