JP3404068B2 - Paper ejection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper discharge device in a copying machine, and more particularly to a paper discharge device for binding a copy to a thread and filing it.

[0002]

2. Description of the Related Art Conventionally, in some paper ejecting apparatuses of copying machines, a filing process of a copy (paper ejecting bundle) is performed by using metal staples.

[0003]

However, in the above-described conventional paper discharge device, there is a problem that the blade of the shredder is damaged by the staple needle when the paper filed by the staple needle is cut by the shredder. Further, when the filed is used as a document for copying or the like in units of one sheet, it is not easy to remove the staples with a finger, and the finger or nail may be damaged. Further, when a plurality of sheets stapled with staples are stacked and further filing is performed (a plurality of booklets are stacked), the portion is raised due to the thickness of the staples, and there is a problem that filing is not easy. Further, since filing requires a considerable amount of force due to the staples, there is a problem in that the binding work noise associated therewith is noisy. Therefore,
The present invention eliminates the above-mentioned conventional problems and can easily perform cutting with a shredder and release of filing, can also perform filing by stacking a plurality of booklets well, and can provide a paper discharge device with a quiet working sound. The challenge is to provide.

[0004]

Means for Solving the Problems] It is an gist of the present invention, in claim 1, in the paper discharge apparatus having a paper discharge stack for placing the copied paper discharge bundles, perforated the sheet discharge bundle < br /> Thread binding means for binding threads with machine fibers and abacus ball-shaped
Elastically sandwich the convex stack and the output stack against the convex stack
However, the concave top that fits in the convex top
The thread binding direction that is attached to the
The center folding means that can be moved to the
It is equipped with a mechanism to move the center-folding means in the thread binding direction.
To Rukoto the stitched portions by causing dynamic folded in two,
According to a second aspect of the present invention, in a sheet discharging device having a sheet discharging stack on which a copied sheet discharging bundle is placed, a thread binding unit that binds a central portion of the sheet discharging bundle with an organic fiber, and an abacus ball-shaped convex piece. When the paper discharge stack against the projecting piece is resiliently sandwiched by the concave piece configured to fit over the convex piece is attached rotatably each stitched direction by the thread binding means
The center folding means that can be moved to the
It is equipped with a mechanism to move the center-folding means in the thread binding direction.
By moving it, the thread-bound portion is folded in half.

[0005]

[Action] In 請 Motomeko 1, organic paper discharge flux by stitched means
At the same time as thread binding with material fibers,
Hold the output stack elastically and rotate them against the output stack.
By moving in the thread binding direction while rolling,
The folded part is folded in half . In 請 Motomeko 2, at the same time a central portion of the sheet discharge flux by stitched means stitched with organic fibers, resiliently clamping the sheet discharge flux by the convex pieces and concave pieces, for these paper discharge bundles Thread binding while rotating
The thread-bound portion is folded in half by moving in the direction .

[0006]

Embodiments of the present invention will be described below with reference to the drawings. First, a thread binding mechanism according to claim 1 will be described with reference to FIG. In the figure, a paper discharge device 15 is provided in the paper discharge unit of the copying machine 10, and a needle thread 2 through which the needle thread is passed through the leading end (upper part) of the work tray 1 on which the paper discharge bundle 20 is stacked, and the work. A lower thread presser 4 and a wedge 3 for pulling out the lower thread are arranged on the back side of the tray 1 with the tray 1 sandwiched therebetween. The work tray 1 is placed on a movable tray 5 fixed to a conveyor belt 6, and a discharged sheet bundle 20 filed at the left end portion of the conveyor belt 6 in the figure, which is a destination of the movable tray 5, is placed. A stacking sheet discharge tray 7 is provided. In this structure, after the discharged sheet bundle 8 is stacked on the work tray 1, the upper thread needle 2 through which the upper thread passes passes through the discharged sheet bundle 20, and the wedge 3 moves the lower thread ( The white thread) is passed between the upper threads (hatched lines), the lower thread presser 4 presses the tip of the passed lower thread, and then the upper thread needle 2 returns to complete one stitch. By repeating this operation, the thread binding (binding booklet) shown in FIG. 3 is completed and filing is performed. After that, the upper thread needle 2, the wedge 3, and the lower thread presser 4 are retracted to the front, the transport belt 6 is rotated counterclockwise, and the binding booklet is stacked on the discharge tray 7.

Next, a saddle stitching mechanism and a center folding mechanism according to a second aspect will be described. The overall structure and the thread binding mechanism are substantially the same as those of the first embodiment. As shown in FIG. 4, the needle thread 2 is supported by the guide 2a on the moving base 6, and a cam (not shown) attached to the motor 11 rotates to reciprocate the needle needle 2. On the other hand, as shown in FIG. 5, the lower thread portion is reciprocally moved by the cam (not shown) supported by the guide 8a on the moving base 8 and driven by the motor 12, and the lower thread presser 4 is also moved. It is reciprocated by being pressed against the cam by a spring (not shown). Further, the moving bases 6 and 8 are arranged at substantially the central position of the discharged sheet bundle 20, and each of them has an abacus ball-shaped top 9a (convex top) and a top 9b shaped to fit the top 9a. The (recessed piece) is elastically biased in the direction of arrow A (the direction of pressing the discharged sheet bundle 20) by a member such as a leaf spring (not shown), and is rotatably provided so as to sandwich the discharged sheet bundle 20. There is.

Further, the moving tables 6 and 8 are penetrated by the screw shaft 13, the guide shaft 16, and the screw shaft 14 and the guide shaft 17, respectively. This screw shaft 13 and 1
A screw thread is formed in 4, and the movable bases 6 and 8 are moved by being driven and rotated by a rotating mechanism (not shown). The guide shafts 16 and 17 maintain the positional accuracy of the moving bases 6 and 8, and the guide shaft 17 is fixed to the apparatus main body side.
It is possible to retract to a predetermined position that does not get in the way when binding the booklets. In this configuration, as the screw shafts 13 and 14 are rotated by the rotating mechanism to move the movable tables 6 and 8 in the direction of arrow B, the sheets are bound to the central position of the discharged sheet bundle 20 by the same operation as in the above embodiment. Eyes are formed. At the same time, the tops 9 and 10 rotate while holding the discharged sheet bundle 20 in pressure contact with each other, whereby folds are formed in the discharged sheet bundle 20 and the binding booklet is completed. After that, the movable table 6 is retracted to a predetermined position (together with the screw shaft 13 and the guide shaft 16), the conveyor belt 6 is rotated counterclockwise as in the embodiment of claim 1, and the binding booklet is ejected onto the sheet ejection tray. Stack on 7.

[0009]

According to the present invention, since with a stitched means stitched with organic matter fiber sheet discharge bundle (releases the filing) Remove the binding case also, damage the nail or finger It can be easily removed by simply pulling the bobbin thread. Further, the cutting by the shredder can be performed without any problem, and the sound of the binding work is relatively quiet. According to the present invention,
A yarn binding means for stitched paper discharge bundle organic matter fibers, and the convex piece of abacus bead shape, concave piece configured to fit the paper discharge stack against the convex piece to elastically sandwiched convex piece And each
Thread binding by rotatably attached and thread binding means
The center folding means that can move in the stitching direction and the center folding means
And a mechanism for moving the center folding means in the direction
The folded part is folded in half by moving it in the same direction <br />, so you can bend the discharged bundle accurately without missing
The life of the frame itself can be extended. In addition, filing with an adhesive or the like for stacking a plurality of booklets can be performed well.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a paper discharge device according to an embodiment of the present invention (claim 1).

FIG. 2 is an explanatory diagram showing a relationship between an upper thread and a lower thread.

FIG. 3 is a perspective view showing a thread binding state of a discharged sheet bundle.

FIG. 4 is a plan view showing a saddle stitching mechanism according to an embodiment of claim 2;

FIG. 5 is a side view showing the center folding mechanism according to the second embodiment.

[Explanation of symbols]

2, 3, 4 thread binding means 7 Paper output stack 9a convex top 9b concave top 20 Paper bundle

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayuki Koga 1-3-6 Nakamagome, Ota-ku, Tokyo, Ricoh Co., Ltd. (56) Reference JP-A-5-15503 (JP, A) JP HEI 5-58546 (JP, A) JP 62-288002 (JP, A) JP 51-150424 (JP, A) JP 58-18294 (JP, A) (58) Fields investigated (Int .Cl. ⁷ , DB name) B65H 37/04 B42C 19/00 G03G 15/00

Claims (2)

(57) [Claims] 1. A paper discharge apparatus having a paper discharge stack for placing the copied paper discharge bundle, a yarn binding means for stitched the sheet discharge flux in organic fibers, and the convex piece of abacus bead shape, this Output bundle for convex frames
It has a concave top that is elastically clamped and fits into a convex top.
Each is rotatably attached, and the thread binding hand
It is provided with a center-folding unit that is movable in the thread-stitching direction by steps and a mechanism that moves the center-folding unit in the thread-stitching direction.
By moving the center folding means in the thread binding direction,
A paper ejection device that folds the bound part in two . 2. A paper discharge device having a paper discharge stack on which a copied paper discharge bundle is placed, and a thread binder for binding the central portion of the paper discharge bundle with organic fibers.
A step, an abacus-shaped convex piece, and a stack of paper ejected to this convex piece
It has a concave top that is elastically clamped and fits into a convex top.
Each is rotatably attached, and the thread binding hand
It is provided with a center-folding unit that is movable in the thread-stitching direction by steps and a mechanism that moves the center-folding unit in the thread-stitching direction.
By moving the center folding means in the thread binding direction,
A paper ejection device that folds the bound part in two .