JPH0653558U - Paper transport device - Google Patents

Abstract

(57) [Summary] [Purpose] In a paper sheet transporting device, paper sheets discharged onto a stacker are stacked in order in the discharged order. [Structure] A feed roller 3 is provided at a discharge port 6 facing a stacker 7. The drive shaft 8 of the feed roller 3 has
A weight 9 is rotatably provided. The weight 9 has a protrusion 10 in the vicinity of the drive shaft 8 and has a tip as a push-down portion 11 for the sheet S. (A) The sheet S discharged from the feed roller 3 hits the protrusion 10 and lifts the entire weight 9 upward. Since the protrusion 10 is close to the feed roller 3 that holds the paper sheet S, the force of pushing down the discharged paper sheet S is relatively small. (B), (c) When the paper sheet S is completely discharged, the weight 9 is lowered, and the pushing-down portion 11 at the tip pushes down the paper sheet S with a relatively large moment to suppress the momentum of the paper sheet, and the stacker 7 To load.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet transporting device that transports a sheet, discharges it from a discharge port, and stacks it on a stacker. INDUSTRIAL APPLICABILITY The present invention can be applied to, for example, an image scanner device for reading the contents of a form by an image sensor, as a form conveying device for conveying the form whose contents are read by the image sensor and discharging / stacking it on a stacker. it can.

[0002]

[Prior art]

 FIG. 6 shows an example of the structure of a conventional image scanner device in which a document is taken in and conveyed, its contents are read by an image sensor and discharged onto a stacker. This image scanner device is provided with a hopper 51 having an auxiliary tray 50 that can be pulled out for loading forms, a rubber plate roller 53 that feeds the forms 52 loaded in the hopper 51 one by one from above into the inside of the main body, and a paper feeding device. An image sensor 54 for reading the contents of the printed form 52, a feed roller 56 provided on the conveyance path 55 for guiding the form 52, a position detection sensor 57 for detecting the end of the conveyed form 52, A printer 58 for printing a serial number or the like for confirmation on the form 52 whose contents have been read by the image sensor 54, a windmill roller 59 for aligning one side of the form 52 for skew correction, and a form 52 to be conveyed. A first stopper 66 that is temporarily stopped and is in a standby state, and a stacker 60 that accumulates the forms 52 that are discharged after the contents are read and printed. A guide 68 provided at the tip of the stacker 60 for preventing the slips of sheets, drive motors 61, 62, 63 for driving the rubber plate roller 53, the feed roller 56, and the windmill roller 59, and the drive motor 61. , 62, 63 and the like, and a control means 64 for electrically controlling each part, and a power source 65 for supplying desired power to each part.

When reading the contents of the form 52, when the auxiliary tray 50 is pulled out and the form 52 is loaded on the hopper 51, the form 52 loaded on the hopper 51 is restored by the bending force of the rubber plate roller 53. Are discharged one by one from above, are pressed against the friction plate 67, and are supplied into the main body. Then, the form 52 is pressed against the aligner surface by the windmill-shaped roller 59 and is aligned with one side of the transport path 55, and the form 52 is temporarily stopped by the first stopper 66 to be in a standby state. Next, the first stopper 66 is opened by the first stopper opening / closing means (not shown), the form 52 is conveyed again to the feed roller by the windmill roller 59, and then the form 52 is fed by the feed roller 56 to the image sensor 54. Be transported to the side. The image sensor 54 reads the content of the conveyed form 52 while scanning it line by line, and the form 52 with the read content is conveyed to the printer 58 side via the feed roller 56. The printer 58 prints a serial number for confirmation on the form 52 whose contents have been read by the image sensor 54. The printed form 52 is discharged from the discharge port via the feed roller 56 and is guided by the guide 68. It is accumulated in the provided stacker 60.

[0004]

[Problems to be solved by the device]

 According to the sheet transport mechanism in the image scanner device described above, when the size of the form is large, the form discharged onto the stacker 60 hits against the guide 68 at the leading edge thereof, so the stacker is arranged in the order in which the form is discharged. Will be accumulated on top. However, as shown in FIG. 7, in the case of a small-sized form, the distance from the discharge port to the guide 68 is larger than the length of the form, so the form moves forward on the stacker 60. Then, when the next form is discharged, the leading edge of this form also slips under the rear end of the form that was discharged before, and the stacking order on the stacker 60 becomes incorrect. there were. Further, since the form moves forward on the stacker 60, there is a problem that it does not accumulate in an orderly shape, is unsightly, and is difficult to handle later.

An object of the present invention is to provide a paper sheet transporting device that can accumulate paper sheets discharged on a stacker in an orderly manner.

[0006]

[Means for Solving the Problems]

 The paper sheet transporting device of the present invention is a paper sheet transporting device for transporting paper sheets, discharging them from an outlet, and stacking them on a stacker. An operation unit that is pushed up by contacting the discharged paper sheet, and provided in the vicinity of the discharge port so as to interlock with the operation unit, and does not contact the paper sheet that is in contact with the operation unit. And a push-down portion that comes into contact with the trailing edge of the paper sheet that is away from and pushes down the paper sheet onto the stacker.

[0007]

[Action]

 The paper sheet sent out from the discharge port comes into contact with the operating portion and pushes it up. Since the push-down section is lifted in conjunction with the operation section, it does not come into contact with the paper sheet. When the paper sheet is completely discharged from the discharge port and separated from the operating section, the pushing-down section descending together with the operating section presses the rear end of the paper sheet from above. Therefore, the paper sheets ejected on the stacker are stopped at a predetermined position and are piled up orderly in the ejected order.

[0008]

【Example】

 The sheet conveying apparatus 1 of the first embodiment will be described with reference to FIGS. This device 1 can be used as a sheet conveying device for discharging a read form onto a stacker in the image scanner described in the section of the related art.

As shown in FIGS. 1 and 2, the housing 2 of the apparatus 1 is provided with feed rollers 3 and 4 and a paper sheet conveying path 5. The feed roller 3 faces the discharge port 6 of the housing 2, and the paper sheet can be discharged onto a stacker 7 provided on the housing 2.

An arm-shaped weight 9 is attached to the drive shaft 8 of the feed roller 3 of the discharge port 6 so as to be rotatable without being restricted by the rotation of the drive shaft 8. The weight 9 has a protrusion 10 as an operating portion at the base near the drive shaft 8. The tip of the paper sheet discharged from the feed roller 3 contacts the protrusion 10, and the weight 9 as a whole is It is designed to rotate upward.

The tip portion of the weight 9 serves as a push-down portion 11 for holding the trailing end portion of the paper sheet. When the trailing end of the paper sheet discharged from the feed roller 3 leaves the protrusion 10, the pushing-down portion 11 which rotates downward pushes down the trailing end of the paper sheet.

As shown in FIG. 3A, the paper sheet S sent out from the discharge port 6 hits the protruding portion 10 of the weight 9 and lifts the weight 9 upward. Until the paper sheet S is completely discharged from the feed roller 3, the paper sheet S contacts only the protrusion 10 and the push-down portion 11 at the tip of the weight 9 does not contact the paper sheet S. Since the protruding portion 10 is located near the feed roller 3, it comes into contact with the paper sheet S at a position close to the nipping portion of the paper sheet S. Therefore, as compared with the case where the push-down section 11 comes into contact, the paper sheet S that is being ejected is not largely deflected, the tip of the paper sheet S does not push out the paper sheet S on the stacker 7, The discharge is done smoothly.

As shown in FIG. 3B, when the trailing edge of the paper sheet S comes off the feed roller 3, the entire weight 9 starts to rotate downward due to its own weight. Then, as shown in FIG. 3C, the push-down portion 11 at the tip of the weight 9 pushes down the rear end of the discharged paper sheet S, and the paper sheet S flies forward on the stacker 7 vigorously. Prevent. As a result, the discharged paper sheets S do not enter between the other paper sheets S stacked on the stacker 7, and the respective paper sheets S are piled up in order at predetermined positions on the stacker 7.

As shown in FIG. 4, even if a rotatable arm-shaped weight 20 is provided in the vicinity of the discharge port 6, if the protrusion 10 is not provided as in the above-described embodiment, the discharged paper is discharged. The weight 20 pushes down the leaf S at its tip. For this reason, the leading edge of the ejected paper sheet S pushes the paper sheets S accumulated on the stacker, and the order is likely to be reversed and the order is lost. The shape and position of the protrusion 10 may be set appropriately in consideration of the timing at which the push-down unit 11 pushes down the paper sheet S.

FIG. 5 shows the structure of the operation unit 12 and the push-down unit 13 in the apparatus of the second embodiment. An arm-shaped pushing-down portion 13 and an operating portion 12 are rotatably provided on a drive shaft 8 of the feed roller 3 at the discharge port of the apparatus via a collar 14. The push-down portion 13 and the operation portion 12 are made of wire wound around the collar 14. The push-down portion 13 has one end of the wire extended relatively long and the surface thereof is covered with rubber. Further, the operation portion 12 is such that the other end of the wire is extended relatively short toward the side closer to the feed roller 3. A spring 15 is interposed in the collar 14 so that when the push-down portion 13 is lifted above a certain limit, a biasing force acts downward.

With the structure of this embodiment, the same operational effect as that of the first embodiment can be obtained. That is, the paper sheet discharged from the feed roller 3 first hits the operating section 12 to lift the operating section 12 and the pushing down section 13 upward, and the trailing end of the paper sheet discharged and separated from the operating section 12 is pushed down by the pushing down section 13. It is pressed down.

[0017]

[Effect of device]

 As described above, according to the present invention, when the paper sheet is discharged onto the stacker, the rear end of the paper sheet is pushed down by the weight to suppress the force of the paper sheet. The ejected paper sheets can be stacked orderly in the ejected order.

[Brief description of drawings]

FIG. 1 is a schematic front view of an embodiment.

FIG. 2 is a schematic plan view of an example.

FIG. 3 is a diagram showing an operation of one embodiment.

FIG. 4 is a diagram showing an operation of a weight having no protrusion.

FIG. 5 is a diagram showing a main part of a second embodiment.

FIG. 6 is a diagram showing a structural example of a conventional image scanner device.

FIG. 7 is a diagram showing a problem of a paper sheet transporting device in a conventional image scanner device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper conveying device (device) 6 Ejection port 7 Stacker 10 Projection part as operation part 11, 13 Push-down part 12 Operation part

Claims (1)

[Scope of utility model registration request] 1. A paper sheet transporting device for transporting paper sheets, discharging the paper sheets from a discharge port, and stacking the paper sheets on a stacker. The paper sheet is rotatably provided near the discharge port and is discharged from the discharge port. And a paper sheet that is provided near the discharge port so as to interlock with the operation section and that is pushed up by contacting the operation section, and does not contact the paper sheet that is in contact with the operation section, and that is separated from the operation section. A paper sheet conveying device having a push-down portion that comes into contact with the rear end of the paper sheet and pushes down the paper sheet onto the stacker.