Collating device
AssigneeDuplo Corporation
InventorsTomio Honma, Hideo Tanaka
Life of this patent
Estimating the term…
Abstract
The collating device sucks up the topmost sheet of the paper stack on the paper table by the suction head and feeds forward the sheet one after another. The paper table is being given an upward force by a spring. This paper table moves up to the position where the topmost sheet of the paper stack on the paper table contacts with a stopper. This stopper moves up during the period when the suction head feeds forward the topmost sheet. At this time, an electromagnetic brake is set at the on-state and fixes the position of the paper table. The suction head, stopper, electromagnetic brake and the like rotate at the predetermined timing based on the rotation of cams. Thus, according to this invention it is possible not only to save the cost of the device but also to operate the device at high speed.
Claims18
A collating device for feeding a sheet of paper on the topmost of a paper stack one after another, comprising:
- a paper table loaded with said paper stack;
- support means for supporting the paper table so as to be able to move up and down;
- biasing means for biasing the paper table upward;
- a stopper movable between a first position at which the topmost sheet of said paper stack contacts said stopper and a second position at which said stopper is spaced from said paper stack;
- fixing means for fixing the position of said paper table in an on-state and for releasing the paper table in an off-state in which said fixing means does not fix the position of the paper table;
- a suction head which can suck up each sheet by a sucking force;
- suction head moving means for moving said suction head between a lower position where the topmost sheet of said paper stack is sucked up and an upper position where the suction head is separated from said paper stack;
- and
- control means for controlling operations of said stopper, fixing means, suction head and suction head moving means.
A collating device for feeding a sheet of paper on the topmost of a paper stack one after another, comprising:
- multiple paper tables loaded with said paper stack;
- support means for supporting the paper tables so as to be able to move up and down;
- biasing means for biasing said paper tables upward;
- a stopper which is provided for each paper table and which is movable between a fist position at which the topmost sheet of said paper stack contacts said stopper and a second position at which said stopper is spaced from said paper stack;
- fixing means, provided for each paper table, for fixing the position of said paper table in an on-state and for releasing the paper table in an off-state in which said fixing means does not fix the position the paper table;
- a suction head provided for each paper table which can suck up each sheet by a sucking force;
- suction head moving means for moving said suction heads between a lower position where the topmost sheet of said paper stack is sucked up and an upper position where the suction head si separated from said paper stack;
- a paper table lever which engages each of said paper tables and which can pulldown said paper tables at one time;
- a paper table lever driving means for driving said paper table lever between an upper feeding position and a lower standby position;
- and
- control means for controlling operations of said stoppers, fixing means, suction heads, suction head moving means and paper table lever driving means.
Dependencies are inferred from the claim text.