Patent ID: 7766598

Claim:
A bundled-paper sheet material transport apparatus comprising: a carrier, being capable of traveling back and forth on a bundled-paper sheet material transport path, equipped with an ejection plate on the front for ejecting the bundled-paper sheet material and equipped with a plurality of cutout parts, which are open in their top and side parts, at a predetermined interval on its both left and right sides; a drive transmission unit equipped with a plurality of drive rollers, each of which comprises a plurality of bosses in a predetermined interval on a single circumference around the rotation center thereof, in a predetermined interval on the both left and right sides of the bundled-paper sheet material transport path; each drive roller having a pulley thereon; a plurality of timing belts mutually shared by the respective pulleys of the adjacent drive rollers thereon, wherein the pulley is connected with the pulleys of the adjacent drive rollers by respective timing belts; left and right side support rollers horizontally installed on vertically fixed rotation shafts respectively on both left and right sides of a top panel of the carrier; two rails equipped in parallel with, and on the outside of, the bundled-paper sheet material transport path on both sides, and of which cross sectional areas are shaped as a rectangle opening to the carrier; up and down directions support rollers, being allowed to travel along the two rails, and for each side are equipped by vertically mounting onto horizontal rotation shafts, respectively, being close to the respective lower edges of both side plates of the carrier; and pulleys around which timing belts are vertically wrapped, the timing belts transmitting a drive force that makes an elevator stage move upward or downward, the elevator stage transporting a bundle of paper sheet materials upward or downward, wherein, a drive force is transmitted by allowing bosses of each drive roller, which rotates by receiving a drive force from a drive source, engage in respective cutout parts of the carrier sequentially, thereby allowing the carrier to travel in the front and back directions of the bundled-paper sheet material transport path; each cutout part is a rectangular parallelepiped; each boss is a circular cylinder; the width of each cutout part is larger than the circular diameter of each boss in the direction of the bundled-paper sheet material transport path so as to provide a gap between each cutout part and each boss in the direction of the bundled-paper sheet material transport; and rotation shafts of the pulleys of the drive rollers are longer than the pulleys of the elevator stage.