| 摘要 |
The present invention provides an arrangement for use in devices where a web of material, for example paper, is fed between a supply roll and a take-up roll to selectively, and/or consecutively, expose portions of the web. More particularly, in devices including web supply means and web take-up means where the web is fed from the supply to the take-up, the present invention provides an arrangement including web take-up spindle means to receive the web for take-up, journal means to receive at least one end of the take-up spindle where the journal has aperture means to rotatably receive one end of the web take-up spindle where the periphery of the aperture has at least one lobe opening therein and the spindle means includes radially flexible detent means to engage the periphery of the aperture of the journal means so the detent means can be urged radially inwardly by engagement with the periphery of the aperture and wherein the detent is urged radially outwardly to be received in the lobe opening of the aperture to restrict rotation of the spindle means in a selected direction, and guide means to guide the web from the web supply means to the take-up spindle means.
|
