JPH10310312A - Paper handling equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a paper handling device excellent in operability, which does not break down the paper stacked on the paper loading table when a container drawer is taken in and out. The container basket stores paper.
And a paper loading table (10) provided in the container basket, a holding unit (7a) which is supported so as to be able to be taken in and out in the horizontal direction, and which holds the container basket, and an elevating means (6) which raises and lowers the paper loading table. Container drawer with (7)
And paper pressing means (9) for pressing the upper end of the paper stored in the container basket in accordance with the operation of taking in and out of the container drawer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper handling apparatus, and more particularly to a paper handling apparatus used with an electrophotographic apparatus such as a laser printer and a copying machine.

[0002]

2. Description of the Related Art The prior art will be described with reference to FIGS. The paper 14 printed by the electrophotographic apparatus is conveyed by the paper feed roller 2 of the paper handling apparatus 1 and the stopper 8
And is stacked on the sheet loading table 5 in the container basket 4. When a predetermined amount of paper 14 is stacked on the table 5, the paper 14 is detected by the paper upper surface detection sensor 3, and the table 5 is lowered by a predetermined distance by the lifting mechanism 6 provided in the container drawer 7. The above operation is repeated, and finally the stacking of the sheets 14 is completed or the printing is stopped by the lifting mechanism position detection sensor 11 detecting the full stack of the printed sheets 14. Thereafter, the lifting mechanism 6 is lowered into the container drawer 7 (FIGS. 8 and 9), and the printed paper 14 stacked on the table 5 is taken out by pulling out the container drawer 7.

[0003]

Here, in the conventional paper handling apparatus 1, when the paper 14 stacked on the table 5 is curled upward in the upper surface shape of the table 5 as shown in FIG. When the container drawer 7 is pulled out, the upper end of the paper 14 is caught by the frame of the paper handling device 1, and the paper 14 is broken or jumps out of the container basket 4 and falls into the housing of the paper handling device.

When the table 5 is fixed to a middle and high position as shown in FIG. 10 to prevent the paper 14 from curling upward, after the paper 14 curled downward is conveyed by the rollers 2, There is a problem that the paper jumps out of the container basket 4 without being hit.

SUMMARY OF THE INVENTION An object of the present invention is to provide a paper handling apparatus which is excellent in operability and does not break the paper stacked on the paper loading table when the container drawer is taken in and out.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a container basket for storing sheets, a sheet loading table provided in the container basket, and a holder for holding the container basket supported so as to be able to be taken in and out in a horizontal direction. This is achieved by having a container drawer having an elevating means for elevating and lowering the paper stacking table and the paper loading table, and a paper pressing means for pressing an upper end of the paper housed in the container basket in accordance with the operation of taking in and out of the container drawer. You.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, printed paper 14 is conveyed into the paper handling apparatus 1 by the paper feed roller 2, hits the stopper 8, and is stacked on the table 10 in the container basket 4 installed in the holding portion 7 a of the container drawer 7. At this time, the movable portion 12 of the table 10 is flush with the fixed table surface from the hinge 13 as a starting point by the elevating mechanism 6, and hits the stopper 8 even when the sheet 14 curled downward is conveyed.

When a predetermined amount of paper 14 is stacked on the table 10, the paper 14 is detected by the paper upper surface detection sensor 3, and the table 10 is moved up and down by the lifting mechanism 6 provided in the container drawer 7.
Descends a certain distance. Repeat the above operation,
Eventually, the lifting / lowering mechanism position detection sensor 11 (FIG. 2) detects that the stacking amount of the printed sheets 14 has reached a full state, thereby terminating the stacking of the sheets 14 or stopping the printing. Thereafter, the elevating mechanism 6 descends into the container drawer 7 (FIGS. 3 and 4), and the movable part 12 of the table 10 has its end lowered around the hinge 13 by its own weight and the weight of the paper 14. As a result, the curl height at the upper end of the sheet 14 curled upward is reduced.

On the other hand, when the container drawer 7 is pulled out, the paper pressing member 9 provided on the frame side of the paper handling device 1 with the upper end of the paper 14 stacked on the table 10 serves as a guide. As shown in FIG. 5, the paper pressing member 9 has a configuration in which the central portion is long in the depth direction. Therefore, when the container drawer 7 is pulled out, the paper 1 for contacting and guiding from the central portion of the paper 14 lower than both ends of the paper 14 having a large upward curl.
The problem that the container 4 is collapsed or jumps out of the container basket 4 and falls is eliminated.

[0010]

As described above, according to the present invention, it is possible to provide a paper handling apparatus which is excellent in operability and does not disturb the paper stacked on the paper loading table when the container drawer is taken in and out.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing one embodiment of a paper handling apparatus of the present invention.

FIG. 2 is a right side sectional view of FIG.

FIG. 3 is a front sectional view showing a state where a table is lowered in the paper handling apparatus of the present invention.

FIG. 4 is a right side sectional view of FIG. 3;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a front sectional view showing a conventional paper handling apparatus.

FIG. 7 is a right side sectional view of FIG. 6;

FIG. 8 is a front sectional view showing a state where a table is lowered in a conventional paper handling apparatus.

FIG. 9 is a right side sectional view of FIG. 8;

FIG. 10 is a front sectional view showing a conventional paper handling apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Paper handling device, 2 ... Paper feed roller, 3 ... Paper upper surface detection sensor, 4 ... Container basket, 5,10 ...
Paper loading table, 6 lifting mechanism, 7 container drawer, 8 stopper, 9 paper pressing member, 11 lifting mechanism position detection sensor, 12 table movable section, 13 hinge, 14 paper.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tatsuya Shiraishi 1060 Takeda, Hitachinaka-shi, Ibaraki Pref. Hitachi Koki Co., Ltd.

Claims (2)

[Claims] 1. A container basket for storing sheets, a sheet stacking table provided in the container basket, a holding unit for holding the container basket, which is supported so as to be able to be taken in and out in a horizontal direction, and a lifting and lowering of the sheet stacking table. A sheet handling apparatus, comprising: a container drawer having elevating means for raising and lowering; and a paper pressing means for pressing an upper end portion of the paper stored in the container basket in accordance with an operation of taking out and inserting the container drawer. 2. The sheet handling apparatus according to claim 1, wherein said sheet stacking table has means for partially changing a height in accordance with an operation of inserting and removing said container drawer.