SHREDDER WITH PAPER FEEDER AND A PAPER FEEDER

Abstract

A shredder equipped with paper feeder comprises a shredder unit including a pair of intermeshed cutting cylinders driven by a power source and a paper feeder, which paper feeder has a cover, a paper feeding tray on which paper sheets are set and held, a lifter unit pivotally mounted on a base of the paper feeding tray to be vertically movable, a first feed roller for feeding out multiple paper sheets from the paper feeding tray, a separator wall for controlling the number of paper sheets fed to approximately the number the shredder can shred at one time, a second feed roller for feeding forward the paper sheets passed by the separator wall, a control unit for feeding from the second feed roller a number of paper sheets not greater than the number the shredder can shred at one time, a third feed roller and fourth feed roller for nipping and transporting to the shredder the paper sheets exiting the control unit, and a control switch for controlling the operation of the first feed roller and second feed roller. The shredder with paper feeder enables a stack of document sheets to be automatically fed into the shredder and shredded in lots of a specified maximum number of sheets simply by setting the stack in the paper feeder.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side sectional view of the shredder with paper feeder of the present invention.

FIG. 2 is an enlarged side sectional view of the shredder with paper feeder of the present invention.

Claims

1. A shredder equipped with paper feeder comprising: a shredder unit including a pair of intermeshed cutting cylinders driven by a power source and a paper feeder,which paper feeder hasa cover;a paper feeding tray on which paper sheets are set and held;a lifter unit pivotally mounted on a base of the paper feeding tray to be vertically movable;a first feed roller for feeding out multiple paper sheets from the paper feeding tray;a separator wall for controlling the number of paper sheets fed to approximately the number the shredder can shred at one time;a second feed roller for feeding forward the paper sheets passed by the separator wall;a control unit for feeding from the second feed roller a number of paper sheets not greater than the number the shredder can shred at one time;a third feed roller and fourth feed roller for nipping and transporting to the shredder the paper sheets exiting the control unit; anda control switch for controlling the operation of the first feed roller and second feed roller.

2. The electric shredder with paper feeder according to claim 1, wherein driving power is transmitted to the first feed roller, second feed roller, third feed roller and fourth feed roller through gears fitted thereon and a gear of the fourth feed roller is engaged with a power transmission gear fitted on one cutting cylinder of the shredder to be driven by power transmitted from the shredder.

3. A paper feeder for mechanically inserting a stack of paper sheets into a shredder that is detachably installed on the shredder for holding the stack and automatically sending it to the shredder.

4. A paper feeder according claim 3, comprising: a cover;a paper feeding tray on which paper sheets are set and held;a lifter unit pivotally mounted on a base of the paper feeding tray to be vertically movable;a first feed roller for feeding out multiple paper sheets from the paper feeding tray;a separator wall for controlling the number of paper sheets fed to approximately the number the shredder can shred at one time;a second feed roller for feeding forward the paper sheets passed by the separator wall;a control unit for feeding from the second feed roller a number of paper sheets not greater than the number the shredder can shred at one time;a third feed roller and fourth feed roller for nipping and feeding to the shredder the paper sheets exiting the control unit;a control switch for controlling the operation of the first feed roller and second feed roller;an electrically operated power source for supplying driving power; andgears fitted on the first feed roller, second feed roller, third feed roller and fourth feed roller for operating them by power from the power source.

5. A shredder with paper feeder according to claim 2, wherein the cover is provided with an insertion slot for directly loading into the shredder a number of paper sheets between one and not greater than the number the shredder can shred at one time.