KR20100117407A - Paper alignment auxiliary apparatus for stack finisher of image output system - Google Patents

Abstract

PURPOSE: A paper alignment auxiliary apparatus for stack finisher of image output system is provided to help paper alignment in a stack finisher by stable transmission of discharged papers to a stacker tray. CONSTITUTION: A paper alignment auxiliary apparatus for stack finisher of image output system comprises a support arm member(10). The support arm member supports papers discharged from a printer before the papers are loaded on a stacker tray. The support arm member is formed into the shape of a pair of bars. The support arm member can enter into the inside of a compiler tray(2). A gear row(3) is installed on the lower part of the support arm member.

Description

Paper alignment aid for stack finisher of image output device {PAPER ALIGNMENT AUXILIARY APPARATUS FOR STACK FINISHER OF IMAGE OUTPUT SYSTEM}

The present invention relates to an auxiliary device for a finisher device which is mounted on a copy machine, a printer, or the like. More particularly, the present invention relates to a stack of an image output device capable of simultaneously pressing and aligning paper by a single driving source. A paper sorting aid for a finisher.

In general, an image output apparatus such as a copying machine or a printer is provided with a stack finisher for aligning paper fed in a stacker tray.

In the stack finisher, paddling is performed using a rotary rubber roller or the like that first pulls the discharged paper back into the machine for alignment and post-processing of the discharged paper. If the length is long, the front edge of the paper is struck downward, but the paper cannot be pulled even though the padding is performed.

In addition, when a sheet of paper (hereinafter referred to as 'paper bundle') is aligned and seated on a stacker tray, when the paper bundle is partially curled or there is a predetermined defect on the paper itself, such dried paper bundle or In the process of distorting the distorted paper, the paper slid occurs, which causes a problem of poor alignment of the paper bundle.

Accordingly, the present invention has been made with the following object in order to solve the above-mentioned conventional problems.

First, the present invention has a structure capable of entering and exiting in the front and rear direction, and supports a plurality of sheets discharged from the image output apparatus, and securely transfers the discharged sheets to the stacker tray, thereby assisting paper alignment in the stack finisher. An object of the present invention is to provide a paper alignment aid for a stack finisher of the apparatus.

Second, the present invention has a hinge structure that can be vertically rotated to support the paper stacked on the stacker tray so that misalignment can be prevented even if curl is present in the next discharged paper. The purpose is to provide a device.

Third, the present invention provides a stack finisher paper of an image output apparatus having a paper pressing function for preventing the paper from being pushed by the next discharged paper by pressing the papers previously loaded on the stacker tray in conjunction with the advancement into the front and rear directions. It is an object to provide an alignment aid.

Fourthly, an object of the present invention is to provide a sheet sorting assistant for a stack finisher of an image output apparatus configured to operate the sheet sorting function and the sheet pressing function as one driving source.

In order to achieve the above object, the present invention provides a paper loaded on the stacker tray by first having a support arm member for supporting the discharged paper before a plurality of sheets discharged from the image output apparatus are loaded on the stacker tray. Provided is a sheet sorting aid for a stack finisher that does not obscure the alignment of the stacker.

The support arm member may include a front arm and a rear arm based on a hinge point, and the front arm may be rotatable in an up and down direction about the hinge point. In addition, a lower portion of the support arm member is provided with a gear train made up of a plurality of gears to be interlocked by the forward and reverse rotation of the motor, the bottom of the support arm member is engaged with the gear train so that the support arm can move forward and backward A rack gear is formed along the length end of the member such that the front arm protrudes out of the compiler tray upon advancing of the support arm member, in which case the rear arm is positioned inside the compiler tray.

The present invention includes a paper pressing member having a paper press for directly pressing and fixing the stacked sheets so as to provide a sheet pressing action against the sheets stacked in the stacker tray. A paper press is provided rotatably hinged to one end of the support for supporting it, and a torsion spring is elastically supported against the rotational movement of the paper press between the paper press and the support. In addition, the pedestal is provided rotatably hinged to the top of the fixed assembly for supporting it, a torsion spring is elastically supported against the rotational movement of the pedestal between the pedestal and the fixed assembly. A roller member is rotatably assembled to the other end of the pedestal so as to correspond to one end of the pedestal to which the paper stopper is connected, and a torsion spring is elastically supported between the pedestal and the roller member for the rotational movement of the roller member.

In the present invention, the paper pressing member is preferably provided with a left, right pair in the outer direction of the support arm member on both sides at the end of the compiler tray.

In the present invention, the support arm member is made of a pair of bar shape provided side by side corresponding to each other, the paper press is preferably made of a rubber material of the end is bent form. In addition, the support arm member may be provided with an optical sensor on at least one side to determine and confirm the operation position.

As described above, the present invention includes a support arm member having a hinge structure partially rotatable as a means for assisting the sheet alignment of the stack finisher, and a paper pressing member for pressing the stack of paper loaded in the stacker tray. By allowing the support arm member and the paper pressing member to work together by one drive source, the paper seated on the stacker tray is prevented from being distracted or pushed by the next ejected paper, thereby aligning the paper in the stack finisher. To help and maintain them.

Hereinafter, with reference to the accompanying drawings will be described in more detail the configuration of the present invention.

1 is a perspective view showing the configuration of the paper sorting assistant device for the stack finisher of the present invention, FIG. 2 is a partially exploded perspective view of the paper sorting assistant device according to FIG. 1, and FIG. It is a side view showing.

The sheet sorting aid for the stack finisher according to the present invention supports the paper discharged from the image output device and securely transfers them to the stacker tray 1 to assist the sheet sorter of the stack finisher, as shown in FIG. It is provided embedded in the compiler tray 2 constituting the stack finisher of the device.

Referring to the configuration of the paper alignment aid shown in Fig. 1, the paper alignment aid of the present invention preferentially supports these discharged papers before a plurality of papers discharged from the image forming apparatus is loaded into the stacker tray 1. And a support arm member 10.

As shown in FIGS. 1 and 2, the support arm member 10 is preferably provided in a pair of bar shapes that are provided in parallel with each other. More preferably, the support arm member 10 is a compiler. It is configured and provided to enable entry and exit from the inside of the tray 2 in the front-rear direction.

The present invention provides a gear having a plurality of gears interlocked with a lower portion of the support arm member 10 in order to provide entry and exit of the support arm member 10 in the front and rear directions of the compiler tray 2. A rack gear 4 is provided along the length end of the support arm member 10, and the bottom surface of the support arm member 10 is engaged with the gear train 3 so as to be able to move forward and backward.

Operation of the support arm member 10 according to the present invention is made by the driving of the motor 5 provided on one side of the gear train 3, the gear train in accordance with the forward and reverse rotation of the motor (5) (3) is driven in the forward or reverse direction, respectively. At this time, when the gear train 3 is driven in the forward direction, the support arm member 10 advances outward from the inside of the compiler tray 2 to support the discharged paper, and conversely, the gear train 3 is driven in the reverse direction. The support arm member 10 enters the inner rear of the compiler tray 2 so that the discharged sheets are transferred to the stacker tray 1.

As described above, the present invention supports the sheets discharged from the image output apparatus through the opening and closing of the support arm member 10 and transfers the discharged sheets to the stacker tray 1, thereby safely transferring the sheets of the stack finisher. To help sort.

Meanwhile, the present invention may be configured to allow the support arm member 10 to be vertically rotated as a method for safely delivering the sheets discharged from the image output apparatus to the stacker tray 1. To this end, as shown in FIGS. 1 to 3, the support arm member 10 includes a front arm 10a protruding out of the compiler tray 2 and the compiler tray when advancing out of the compiler tray 2. The rear arm 10b located in the interior of the assembly 2 is assembled in a snap-fit manner and rotates about the hinge point 10c.

As the front arm 10a rotates downward, the support arm member 10 is lowered about the hinge point 10c by the weight of the paper bundle discharged from the image output apparatus. It is possible to transfer the discharged sheet of paper to the stacker tray 1.

In addition, as the front arm 10a is rotated upward, the support arm member 10 has the front end of the front arm 10a on the surface of the paper stack loaded on the stacker tray 1 in the process of advancing outward. As soon as they collide, they naturally slide and come into contact with each other so that the stack of paper stacks stacked on the stacker tray 1 can be supported without disturbing the alignment. Of course, in this case, even if a curl exists in the next discharged paper, it is possible to prevent poor alignment.

In addition, the present invention can provide a sheet alignment aid for a stack finisher having a paper pressing function with respect to the paper pre-loaded on the stacker tray 1 in conjunction with the advancement into the front and rear direction of the support arm member 10. .

FIG. 4 illustrates a configuration of a paper pressing member provided in a stack alignment aid for a stack finisher according to the present invention. The paper pressing member 20 is disposed on the left and right sides of the compiler tray 2 as shown in FIG. 1. A pair is provided and is preferably located at the end of the compiler tray 2 outside of the support arm member 10.

The paper pressing member 20 includes a paper press 21 for directly pressing and fixing a stack of paper, a pedestal 22 for supporting the paper press, and a fixing assembly 23 on which the pedestal is installed.

The paper presser 21 is rotatably hinged to one end of the pedestal 22, and is elastically supported during the rotational movement of the paper presser 21 between the paper presser 21 and the pedestal 22. A torsion spring 20a for mounting is provided.

In addition, the pedestal 22 is rotatably hinged to the upper end of the fixed assembly 23, provided between the support 22 and the fixed assembly 23 during the rotational movement of the support 22 is elastic The torsion spring 20b is mounted as a means for supporting.

In the present invention, the pedestal 22 is preferably provided in a 'b' shape, corresponding to one end of the pedestal 22 to which the paper stopper 21 is connected, the other end of the pedestal 22 has a roller member ( 24 is rotatably assembled, and a torsion spring 20c is provided between the pedestal 22 and the roller member 24 to elastically support the roller member 24 when the roller member 24 rotates.

The role of this torsion spring 20c is to push the roller member 24 to rotate forward with the pedestal 22 when the support arm member 10 protrudes out of the compiler tray 2 and moves forward. On the contrary, when the support arm member 10 is retracted, the roller member 24 and the pedestal 22 serve to return to their original positions.

On the other hand, the paper stopper 21 is provided in the form that the end is bent for contact with the stack of paper loaded on the stacker tray, the end 21a of the paper stopper 21, that is, the portion that is in direct contact with the paper It is preferably made of a material.

According to the present invention, the paper pressing member having such a structure can prevent a paper rolling phenomenon in which the paper stack previously loaded on the stacker tray is pushed by the next discharged paper.

The present invention provides a sheet sorting assistant apparatus for a stack finisher, in which the above-described sheet sorting function and sheet pressing function are both controlled by one driving source. 1 to 3, the support arm member 10 and the paper pressing member 20 are connected to one motor 5 through a gear train 3 composed of a plurality of gears interlocking with each other. It is configured to operate the support arm member 10 and the paper pressing member 20 while the gear train 3 is driven by positive and reverse rotation. The driving of the motor 5 may be controlled by the encoder 6 mounted on one side of the motor 5.

In addition, the paper sorting aid for the stack finisher of the present invention may be provided with a plurality of optical sensors on the left and right sides so as to determine and confirm the position of the support arm member 10 and the paper pressing member 20 during operation. As an example, the first optical sensor 7, the second optical sensor 8 and the third optical sensor 9 are shown in FIGS. 1 to 2, respectively.

Fig. 5 shows in sequence the operating state of the sheet sorting aid for the stack finisher of the present invention sensed at each optical sensor position.

FIG. 5A illustrates an initial operating state in which the rear arm 10b of the support arm member 10 is present at the position of the first optical sensor 7, in which the support arm member 10 and the paper pressing member ( 20) maintains the initial position inside the compiler tray 2 without proceeding.

FIG. 5B shows an intermediate operating state in which the rear arm 10b of the support arm member 10 is present at the position of the second optical sensor 8, and the gear train 3 is moved by the forward rotation of the motor 5. While driving, the support arm member 10 is advanced toward the outside of the compiler tray 2.

The support arm member 10 is advanced so that the tip of the front arm 10a is pressed while rotating the roller member 24 of the paper pressing member 1, and the paper press 21 is rotated at the same time so that the stacker tray 1 Press the stack of paper (P1). In this case, the support arm member 10 is a state in which the front arm 10a has not yet protruded out of the compiler tray 2, and the roller member 24 having the front end of the front arm 10a connected to the paper pressing member 20. Press and hold the position inside the compiler tray (2).

FIG. 5C shows the final operating state in which the rear arm 10b of the support arm member 10 is present at the position of the third optical sensor 9, and the front arm 10a of the support arm member 10 is The roller member 24 connected to the paper pressing member 20 is completely protruded out of the compiler tray 2. In this process, the front arm 10a aligns the sheets of paper P1 stacked on the stacker tray 1, and serves to support the sheets of paper P2 to be discharged after the protrusion. At this time, the paper stopper 21 maintains the state of pressing the paper stack P1 loaded on the stacker tray 1 as it is.

Although not shown in the drawings, when the motor 5 rotates in reverse, the support arm member 10 moves backward toward the inside of the compiler tray 2 by the driving of the gear train 3. The paper pressing member 20 operates in the reverse order of FIGS. 5A to 5C.

FIG. 6 illustrates a paper transfer process according to the operation of the support arm member 10 in the stack alignment aid for the stack finisher according to the present invention. As shown in FIG. 1, the support arm member 10 has a hinge point 10c. The front arm 10a has a structure that can rotate in the up and down directions, and the front arm 10a operates in the downward direction and the upper arm 10a plays a different role. .

6A is a state in which the front arm 10a of the support arm member 10 is completely protruded out of the compiler tray 2, and in the protruding process, the front arm 10a is loaded with the stacker tray 1 ( After aligning the P1), it serves to support the next discharged paper (P2).

FIG. 6B illustrates a case in which the front arm 10a is rotated downward by the weight of the paper stack P2 discharged over the support arm member 10. In this case, the front arm 10a is centered around the hinge point 10c. The paper bundle P2 on the support arm member 10 is sag downward so that it is safely delivered to the upper portion of the paper bundle P1 loaded on the stacker tray 1.

The rotation of the front arm 10a can remove the load burden on the paper bundle P2 which is a hindrance to the forward and backward movement of the support arm member 10, and thus is the driving source of the support arm member 10. Overload of the motor 5 can be prevented.

6C illustrates a case where the front arm 10a is rotated upward by the paper stack P1 preloaded on the stacker tray 1, and the support arm member 10 protrudes out of the compiler tray 2. When the paper stack P1 is stacked on the stacker tray 1 in a predetermined thickness or more, the front arm 10a of the support arm member 10 slides along the surface of the paper stack P1 and the hinge point ( It rotates upwards about 10c) and makes smooth contact with the paper stack.

The rotation of the front arm 10a does not impair the alignment of the paper bundle P1 loaded on the stacker tray 1 in the process of protruding the support arm member 10, or may curl the paper bundle P1. Even if curl is present, the alignment of the paper stack can be safely maintained.

1 is a perspective view showing the configuration of a paper sorting aid for a stack finisher of the present invention;

2 is an exploded perspective view of a part of the paper alignment aid according to FIG. 1;

Figure 3 is a side view showing the assembled state of the stack alignment aid device for the present inventors,

Figure 4 is a side view showing the configuration of a paper pressing member provided in the sheet sorting aid for the stack finisher of the present invention;

5 is a view showing the operating state of the stack alignment aid for the stack finisher of the present invention to be detected at each optical sensor position in sequence, Figure 5a is the initial operating state, Figure 5b is the intermediate operating state, Figure 5c is the final Side view showing the operating states,

FIG. 6 illustrates a paper transfer process according to the operation of the support arm member in the stack alignment aid for the stack finisher according to the present invention. FIG. 6A is a state in which the front arm of the support arm member protrudes. 6C is a side view showing a state in which the front arm of the support arm member rotates in the upward direction.

<Explanation of symbols for the main parts of the drawings>

1: stacker tray 2: compiler tray

3: gear train 4: rack gear

5: motor 6: encoder

7,8,9: optical sensor 10: support arm member

10a: front arm 10b: rear arm

10c: hinge point 20: paper pressing member

20a: torsion spring 20b: torsion spring

20c: torsion spring 21: paper press

22: base 23: fixed assembly

24: roller members P1, P2: paper (P1)

Claims (12)

Sorting the paper for the stack finisher including a support arm member that supports the discharged papers prior to being loaded into the stacker tray so that a plurality of sheets discharged from the image output apparatus do not obscure the alignment of the papers loaded in the stacker tray. Auxiliary device. The method of claim 1, The support arm member is composed of a front arm and a rear arm based on the hinge point, the front arm is a stack finisher, characterized in that the rotatable in the up and down direction with respect to the hinge point Alignment aid. The method of claim 1, The support arm member may include a gear train including a plurality of gears interlocked with each other by forward and reverse rotation of a motor in a lower portion of the support arm member so that the support arm member can move in and out from the inside of the compiler tray constituting the stack finisher. And a rack gear formed along a length end of the support arm member so that the bottom surface of the support arm member is engaged with the gear train to move forward and backward. The method of claim 1, And the support arm members have a pair of bar shapes provided side by side to correspond to each other. The method of claim 3, wherein The front arm protrudes out of the compiler tray when the support arm member advances, and the rear arm is positioned inside the compiler tray. The method of claim 1, And a paper pressing member having a paper press for directly pressing and fixing the stacked papers to provide a paper pressing action on the papers loaded in the stacker tray. The method of claim 6, The paper press is provided to be rotatably hinged to one end of the support for supporting it, and the stack between the paper press and the support is provided with a torsion spring elastically supported against the rotational movement of the paper press Paper alignment aid for finisher. The method of claim 7, wherein The pedestal is provided to be rotatably hinged to the upper end of the fixed assembly for supporting it, the stack finisher characterized in that the torsion spring is mounted between the pedestal and the fixed assembly to support the rotational movement of the pedestal Paper alignment aid. The method according to claim 7 or 8, The roller member is rotatably assembled to the other end of the pedestal so as to correspond to one end of the pedestal to which the paper stopper is connected, and a torsion spring is mounted between the pedestal and the roller member to elastically support the rotational movement of the roller member. A paper sorting aid for a stack finisher. The method of claim 6, The paper pressing member is provided with a pair of left and right at the end of the compiler tray, the sheet alignment aid for a stack finisher, characterized in that located in the outward direction of the support arm member. The method of claim 6, The paper presser, the stack alignment device for a stack finisher, characterized in that the end is made of a rubber material of the bent form. The method of claim 1, The support arm member is a stack alignment device for a stack finisher, characterized in that the optical sensor is provided on at least one side to determine and confirm the operation position.

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