JP6235242B2 - Paper stacking assist device - Google Patents

Description

   The present invention relates to a paper stacking assisting device that assists in stacking a plurality of sheets that are continuously discharged to a tray by a paper discharge unit of an apparatus so as not to be scattered.

  2. Description of the Related Art In recent years, image scanner devices for capturing image data of characters and images printed on paper into a computer have become widespread. Some image scanner apparatuses include an ADF (auto document feeder) function for continuously reading paper. If the ADF function is used, it is possible to automatically and continuously read a plurality of sheets set on the sheet feeding tray.

  The paper read into the image scanner device or the like from the paper feed tray by the ADF function is discharged to the paper discharge tray. At this time, in order to prevent a plurality of discharged sheets from being dispersed and scattered, a device is devised such that the sheets are stacked and stacked by providing grooves and guides in the discharge tray.

  Here, as paper used for FAX paper or receipt paper, paper obtained by cutting roll paper is often used. In many cases, the paper cut from the roll paper is left with curl wrinkles (winding wrinkles) even after being unwound from the roll paper. When the paper having such curl wrinkles is read by a scanner device or the like with the ADF function, when the paper is discharged to the paper discharge tray, the paper is scattered due to the roundness of the paper, and the paper is placed on the paper discharge tray Paper does not accumulate with overlapping sheets.

  For example, in Patent Document 1, a step is provided in the paper discharge tray so that the paper with curl wrinkles is accumulated on the paper discharge tray without any disturbance, and the paper discharged by the pressing member from the top. A configuration relating to a paper discharge tray devised so as to prevent paper from being scattered even if the paper has strong curl by pressing is disclosed. Further, Patent Document 2 discloses a configuration of a roll paper discharge stacker capable of regularly stacking roll paper having curled ridges that are discharged after being cut to a predetermined length.

Japanese Utility Model Publication No. 2-86965 JP 2006-315867 A

  As disclosed in Patent Document 1, by installing a member that holds the discharged paper on the upper part of the discharge tray, the discharged paper is pressed from the upper part, and the paper has a curl hook. However, it is possible to deposit while preventing scattering. However, if the presser member is simply installed in the apparatus, the discharged paper may not be deposited below the presser member. Specifically, in the case of paper with strong curl wrinkles, the paper may be scattered before being deposited on the lower part of the pressing member. In addition, when a plurality of sheets are pressed, if the pressing force is strong, the sheets that have already been stacked may be obstructed and new sheets may not be stacked under the presser member.

  Furthermore, there are various types of apparatuses having an ADF function, such as not only an image scanner apparatus but also a copying apparatus and a printer apparatus, and the discharge trays have different shapes. Therefore, even if the pressing member is installed on the paper discharge tray, it is necessary to install it in accordance with the shape of each paper discharge tray. Even when using a stacker for stacking roll paper having curled ridges as shown in Patent Document 2, there is a problem that a stacker suitable for the device to be used must be prepared.

  The present invention has been made in view of the above problems, and discloses a paper stacking assisting device that assists in stacking paper sheets having curled soot continuously discharged onto a discharge tray so as not to be scattered. Is.

  In order to solve the above-described problems, in the first aspect of the present invention, in the paper stacking assisting device, the pressing member having a surface portion for pressing the paper discharged to the tray is joined to the pressing member. Thus, a drive body that displaces upward when the paper discharged to the tray hits the pressing member and a guide body that guides the displacement of the drive body are provided.

  According to this aspect, when the paper ejected from the apparatus hits the pressing member, the driving body in which the pressing member and the pressing member are joined is displaced upward by the collision force, and the pressing member generated by the displacement is It is possible to accurately enter the gap between the tray upper surface or the accumulated paper upper surfaces. The upwardly displaced driving body is subjected to gravity that is displaced downward along the guide body due to the mass of the driving body, and the gravity is applied to the pressing member from the driving body, so that the lower part of the pressing member is It is possible to press the accumulated paper.

  In the second aspect of the present invention, the paper stacking assisting device is a pressing member having a curved portion that abuts against the paper when the paper is discharged to the tray and a flat portion that presses the paper discharged to the tray. And

  According to this aspect, by providing the pressing member with the bending portion, the sheet below the pressing member is pressed with a pressure that does not hinder the paper discharged from the apparatus from entering the lower portion of the pressing member due to the elasticity of the bending portion. Can be pressed.

  In a third aspect of the present invention, the paper stacking assisting device is characterized in that the guide body includes attachment / detachment means for a device for discharging the paper to the tray.

  According to this aspect, since the guide body can be installed in an arbitrary apparatus, the sheet deposition assisting apparatus can be used in any apparatus regardless of the shape of the discharge tray. .

The effects of the present invention are as follows.
(1) Even when a plurality of sheets having curled edges such as receipt sheets are stacked and read by the ADF function of the image scanner device or the like, the read sheets are prevented from being scattered on the discharge tray. be able to.
(2) By adjusting the mass of the driving body, it is possible to press the paper discharged with an appropriate mass against the curl of the paper, and thus more effectively prevent the paper from being scattered on the paper discharge tray. Can do.
(3) By adjusting the elasticity of the curved portion of the pressing member corresponding to the discharging force discharged from the apparatus and the curl of the paper, the discharged paper accurately enters and presses the lower part of the pressing member. Will be able to.
(4) By mounting the paper stacking auxiliary device according to the present invention on the discharge tray without being affected by the shape of the apparatus or the shape of the discharge tray, the curled wrinkle discharged on the discharge tray can be reduced. It becomes possible to prevent scattering.

1 is an external perspective view of a paper stacking assisting device according to the present invention. 1 is an external perspective view of an image scanner device according to an embodiment of the present invention. 1 is an external perspective view of an image scanner device according to an embodiment of the present invention, and shows a state in which a paper stacking auxiliary device is attached. FIG. 3 is a side cross-sectional view illustrating a state where the paper stacking assisting device according to the embodiment of the present invention is attached to the image scanner device. FIG. 3 is a side cross-sectional view illustrating an example of a usage state in a state where the paper stacking assisting device according to the embodiment of the invention is attached to the image scanner device. FIG. 3 is a side cross-sectional view illustrating an example of a usage state in a state where the paper stacking assisting device according to the embodiment of the invention is attached to the image scanner device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the configuration of the paper stacking assisting device 100 according to the present invention will be described.

  FIG. 1 is an external perspective view of a paper stacking assisting device 100 according to the present invention. The paper stacking assisting device 100 includes a pressing member 110, a driving body 120, a guide body 130, and an attaching / detaching portion 140. The pressing member 110 is preferably formed in a substantially rectangular planar plate shape and is joined to the front surface of the driving body 120. As shown in FIG. 1, by joining a certain area from one end of the pressing member 110 to the driving body 120, the force applied to the pressing member 110 and the driving body 120 is applied to each. For example, when a downward displacement force is applied to the driving body 120, a downward displacement force is also applied to the pressing member 110, and when an upward displacement force is applied to the pressing member 110, the driving body 120 is also upward. A force that is displaced in the direction is applied.

  The guide body 130 is preferably configured in a hollow three-dimensional shape, and is provided with an insertion port for the driving body 120 and a window for projecting the pressing member 110 joined to the driving body 120. The lower surface of the guide body 130 is blocked so that the inserted driving body 120 does not fall vertically downward. The driving body 120 is inserted into the guide body 130 from the insertion port, and the pressing member 110 joined to the driving body 120 is in a state of protruding from the window of the guide body 130.

  The guide body 130 is provided with an attaching / detaching portion 140 which is an attaching / detaching means for installing the paper stacking assisting device 100 in an image scanner device or the like, preferably on the back surface of the window. The attachment / detachment unit 140 attaches a sticky adhesive sheet so that the paper stacking assisting device 100 can be attached to and detached from any device. The attachment / detachment means of the attachment / detachment unit 140 is not limited to such a method, and any method may be used as long as it enables the paper deposition assisting apparatus 100 to be removable. The installation location is not particularly limited as long as 100 is detachable. For example, a method of bonding using magnetic force is conceivable.

  Next, as an example of an apparatus in which the paper stacking assisting device 100 is used, an installation method when the paper stacking assisting device 100 is installed in the image scanner device will be described.

  FIG. 2 illustrates an example of an image scanner device that can use the paper stacking assisting device 100. The image scanner device 200 includes a paper feed tray 210, an image scanner device main body 220, a paper discharge port 240, and a paper discharge tray 230. The paper discharge tray 230 may be provided with a paper tray 231 that is a groove for receiving the discharged paper.

  The function of the image scanner device 200 will be briefly described. A plurality of sheets set in the paper feed tray 210 are read into the image scanner device main body 220 one by one by the ADF function. The read paper is subjected to image conversion processing by the image scanner apparatus main body 220 and then discharged from the paper discharge outlet 240 onto the paper discharge tray 230.

  FIG. 3 illustrates an example of a state in which the paper stacking assisting device 100 is installed in the image scanner device 200. The paper stacking assisting device 100 is installed in the image scanner device 200 by the attaching / detaching means of the attaching / detaching unit 140. The paper stacking assisting device 100 is preferably installed above the paper discharge outlet 240 so that the flat surface portion 111 of the pressing member 110 presses the paper discharge tray 230. The surface of the member 110 may be installed at an optimal position for pressing the paper discharge tray 230.

  Next, the operation of the paper stacking assisting device 100 will be described in detail.

FIG. 4 is a side sectional view showing a state in which the paper stacking assisting device 100 is attached to the image scanner device 200 in the first embodiment. As described above, the pressing member 110 of the paper stacking assisting device 100 is joined to the driving body 120, and the driving body 120 is installed in the image scanner device 200 by the attaching / detaching unit 140 while being inserted into the guide body 130.

The paper that has been read by the image scanner device 200 is discharged from the paper discharge port 240. At this time, since the sheet is sent by the roller inside the image scanner device 200 and discharged from the sheet discharge port 240, the discharged sheet is discharged with a certain driving force forward by the discharge force of the roller. The

The paper discharged from the paper discharge port 240 collides with the back surface of the pressing member 110 by the forward driving force. Then, the force transmitted by the collision of the sheet with the pressing member 110 is applied to the driving body 120 joined to the pressing member 110, and the driving body 120 is displaced upward along the inner surface of the guide body 130.

When the driving body 120 is displaced in the upward direction, the joined pressing member 110 is also displaced in the upward direction, and a gap is generated in the lower portion of the pressing member 110. FIG. 5 is a side cross-sectional view showing a state where the paper 400 discharged from the paper discharge port 240 collides with the pressing member 110. As shown in FIG. 5, when the sheet 400 collides with the pressing member 110, the driving body 120 and the pressing member 110 are displaced upward, and the space between the pressing member 110 and the paper discharge tray 250 or the sheet 300. a gap is formed.

By generating a gap at the lower portion of the pressing member 110, the discharged paper 300 can smoothly enter the lower portion of the pressing member 110. When the discharged paper 300 enters the lower portion of the pressing member 110 , the force applied to the pressing member 110 is lost, and the driving body 120 joined to the pressing member 110 is guided by the gravity of the mass of the driving body 120. The pressing member 110 is also displaced downward along the inner surface thereof, and a pressing force is also applied to the pressing member 110 to press the paper 300 that has entered the lower portion of the pressing member 110.

FIG. 6 is a side sectional view showing a state in which the stacked paper 300 is pressed by the pressing member 110. Due to the gravitational force of the mass of the driving body 120, a force that causes the driving body 120 to be displaced downward is applied to the pressing member 110, so that the sheet is reliably pressed in a state where the sheets are accumulated. By doing so, even if the paper has curl wrinkles, the paper is surely deposited on the paper discharge tray 250 without being scattered.

  The pressing member 110 is preferably made of a material having elasticity. As a member of the pressing member 110 having elasticity, for example, a metal thin plate, a plastic thin plate, an acrylic thin plate, or the like can be considered. When the pressing member 110 does not have elasticity, the pressing member 110 presses the sheet only by a force that is displaced downward by the mass of the driving body 120. However, the pressing member 110 is configured by an elastic member. The curved portion 112 is provided from the flat surface portion 111 for pressing the sheet to the joint portion with the driving body 120, and the pressing member 110 is bent, so that the sheet below the pressing member 110 can be pressed by the elasticity of the bending portion 112. Can do.

  Here, if the driving body 120 is a structure capable of performing the above-described operation, the sheet 300 discharged from the sheet discharge outlet 240 is displaced upward by the force of colliding with the pressing member 110. It may be made of any material as long as it is composed of mass.

Further, by providing the pressing member 110 with the flat surface portion 111 and the curved portion 112, the flat surface can be selected according to the operating environment such as the discharge force of the paper 400 discharged from the paper discharge outlet 240 and the strength of curl wrinkles of the paper 400. By adjusting properties such as the size of the portion 111, the curvature and elasticity of the bending portion 112, and the mass of the driving body 120, the discharged paper 400 can be deposited more reliably.

  In addition, it is preferable that the surface of the pressing member 110 is processed so that the frictional force with the discharged paper 400 is small. This is because the friction between the pressing member 110 and the discharged paper 400 is small, so that the paper 400 can enter the lower portion of the pressing member 110 more smoothly.

  Further, if the paper tray 231 which is a groove for receiving the discharged paper is provided in the paper discharge tray 230, the stacked paper 300 is accumulated in the paper tray 231. Even in this case, it is possible to prevent the sheet 400 discharged from the sheet discharge outlet 240 from colliding with the stacked sheet 300.

  The embodiment of the paper stacking assisting device 100 according to the present invention has been described in detail with reference to the drawings. According to the present invention, for example, even when a large amount of receipt paper with curled ridges is stacked and read by the image scanner device, the paper deposition assisting device of the present invention is installed in the existing image scanner device. Thus, the discharged receipt paper can be deposited on the paper discharge tray without being scattered.

DESCRIPTION OF SYMBOLS 100 Paper stacking auxiliary device 110 Push-down member 111 Flat surface part 112 Curved part 120 Drive body 130 Guide body 140 Attachment / detachment part 200 Image scanner apparatus 210 Paper feed tray 220 Image scanner apparatus main body 230 Paper discharge tray 231 400 discharge paper

Claims (3)

A paper stacking assisting device that assists in the stacking of paper discharged to a tray,
A pressing member having a surface for pressing the paper discharged to the tray, which is installed at a position covering an upper part of the discharge outlet from which the paper is discharged;
A driving body that is displaced upward by applying a force transmitted through the pressing member when the pressing member is joined and the paper discharged to the tray hits the pressing member ;
And a guide body for guiding the displacement of the drive body.   2. The paper according to claim 1, wherein the pressing member is a pressing member having a curved portion against which the paper abuts when the paper is discharged to the tray and a flat surface portion that presses the paper discharged to the tray. Deposition aid. The guide body, the sheet deposition aid of claim 1 or claim 2, characterized in that it comprises a detachable means to a device for discharging sheets to said tray.