| 摘要 |
<p>PURPOSE:To prevent a paper from being contaminated by oil, by a method wherein a sleeve, which covers the whole of the outer peripheral part of the coil spring of a spring clutch, serving as a means for transmitting a limit motion between a separating roller and a driving shaft, is located integrally to an arbor or boss. CONSTITUTION:A titled device comprises a take-out roller 235, adapted to take out papers on a feed paper table, and feed roller 236, adapted to feed the paper taken out by the take-out roller, and a separating roller 237, forced into rolling contact with the feed roller, and the papers on the paper feed table are separated one by one for feed by means of the above rollers. A spring clutch 263, adapted top cover the whole outer peripheral part of a coil spring 294 with a sleeve 292a located integrally to an arbor 290 of a boss 292, is used as a means of transmitting a limit power between the separating roller 237 and a driving shaft 262. This prevents idle torque from being brought to an unstable state with time due to adhesion of dust and paper powder to the spring coil 294, and prevents the paper from being contaminated by oil through prevention of splash of oil, coated on the spring, to a portion therearound.</p> |
