| CPC B65H 75/305 (2013.01) | 13 Claims |
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1. An assembly mountable to and along the side of a stand of a duct rodder rotatable cage or reel for coiled duct rodding or other conduit for power assist of unwinding and winding of duct rodding or other conduit comprising:
a. a hand portable plate frame having upstream and downstream opposite ends and drive wheel and drill opposite sides along a longitudinal axis, top and bottom opposite edges spaced from the longitudinal axis, and a supporting member along its top edge for structural robustness, the plate frame having perimeter dimensions small enough for a user to carry the hand portable plate;
b. a drive wheel having a perimeter diameter rotatably mounted on the drive wheel side and towards the top edge of the plate frame and having a drive axle structurally supported by a steel hub and bushing extending from the drill opposite side and having a distal end for selective operative releasable engagement to a rotary driving output of a hand-operated battery powered drill or rotary tool, the drive wheel perimeter diameter being smaller than the distance between the top and bottom edges of the plate frame;
c. an adjustable pinch wheel having a perimeter diameter rotatably mounted on the drive wheel side and towards the bottom edge of the plate frame on an adjustment mechanism that is selectively translatable towards and away from the drive wheel and fixable into position for adjustable pinching force on duct rodding or other conduit relative the drive wheel, the pinch wheel perimeter diameter being smaller than the distance between the top and bottom edges of the plate frame;
d. a mounting interface at the upstream end of the plate frame comprising spaced apart clamping plates defining a receiver configured to selectively removably receive and clamp or affix the plate frame with drive and pinch wheels to a stand of a duct rodder rotatable cage or reel for coiled duct rodding or other conduit with adjustable clamping hardware;
e. a guide member on the plate frame upstream of the drive wheel comprising an opening configured to threadably receive and guide duct rodding to the drive wheel from the upstream end and generally along the longitudinal axis of the plate frame;
f. a guide member on the plate frame downstream of the drive wheel comprising an opening to threadably receive and guide duct rodding from the drive wheel and generally along the longitudinal axis and away from the downstream end of the plate frame; and
g. the drive wheel comprises a radially compressible resilient elastic body.
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