| 摘要 |
<p>The sheet feeding apparatus includes a gear drivingly connected to the press for rotation in timed relation therewith. A pair of endless cam mechanisms are connected to the drive gear for rotation therewith. A rack actuator mechanism is mounted on a block member and is arranged to reciprocate upon rotation of the drive gear. The rack actuator has a first cam follower arranged to be maintained in abutting relation with one of the cam members associated with the drive gear. The rack actuator has a second cam follower arranged to be maintained in abutting relation with the second cam member associated with the drive gear. The rack actuator has a gear holder in which a rack gear is positioned. The rack gear is in meshing relation with a pinion gear non-rotatably connected to the drive roller shaft. Reciprocation of the rack gear oscillates the feed roller to feed sheets at a preselected velocity into the press. One of the cam rollers is mounted on a shaft that is eccentrically mounted on a disc rotatably supported on the rack actuator and resilient means rotatably urges the disc member to maintain the cam follower in abutting relation with one of the cam surfaces.</p> |
