JP2578504Y2 - Paper transport 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 sheet conveying apparatus for conveying a sheet, discharging the sheet from an outlet, and stacking the sheet on a stacker. INDUSTRIAL APPLICABILITY The present invention can be applied to, for example, an image scanner for reading the contents of a form using an image sensor, as a form conveying apparatus for conveying the form read by the image sensor and discharging / stacking the form on a stacker.

[0002]

2. Description of the Related Art FIG. 6 shows an example of the structure of a conventional image scanner device which reads a form with an image sensor and discharges the form onto a stacker while taking and conveying the form. This image scanner apparatus is provided with a hopper 51 having a drawer-free auxiliary tray 50 for loading a form.
A rubber plate roller 53 for feeding the forms 52 loaded on the hopper 51 one by one from above to the inside of the main body, an image sensor 54 for reading the contents of the fed forms 52, and a paper path 55 A feed roller 56 for guiding the form 52, a position detection sensor 57 for detecting the end of the form 52 being conveyed, and a serial number or the like for confirmation on the form 52 whose contents are read by the image sensor 54 are printed. Printer 58, a windmill-like roller 59 for performing skew correction by aligning one side of the form 52,
1st stopper 66 which suspends 2 and makes it stand-by state
And the form 5 which is discharged after the reading and printing of the contents are completed
2, a guide 68 provided at the end of the stacker 60 for preventing slipping of the form, and drive motors 61 and 62 for driving the rubber plate roller 53, the feed roller 56 and the windmill-shaped roller 59. 63, a control means 64 for electrically controlling each unit including the drive motors 61, 62, 63, and a power supply 65 for supplying desired power to each unit.

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 read.
Are discharged one by one from above by the restoring force due to the bending of the rubber plate roller 53, pressed against the friction plate 67 and supplied to the inside of the main body. Next, the form 52 is pressed against the aligner surface by the windmill-shaped roller 59 and is temporarily stopped by the first stopper 66 in a state where the form 52 is aligned with one side of the transport path 55, and is in a standby state. Next, the first stopper 66 is opened by a first stopper opening / closing means (not shown), and the form 52 is again conveyed to the feed roller by the windmill-shaped roller 59, and then the form 52 is moved to the image sensor 54 side by the feed roller 56. Transported to The image sensor 54 reads the contents of the conveyed form 52 while scanning it line by line, and reads the form 52 on which the contents are read via the feed roller 56 to the printer 5.
Conveyed to the 8th side. In the printer 58, the image sensor 5
Then, a serial number for confirmation is printed on the form 52 whose contents have been read by the controller 4, and the printed form 52 is discharged from the discharge port via the feed roller 56 and is guided by the guide 6.
8 are accumulated in the stacker 60 provided with the number 8.

[0004]

According to the above-described paper transport mechanism in the image scanner, when the size of the form is large, the form discharged onto the stacker 60 hits the guide 68 with its leading end hitting the guide 68. , And are sequentially accumulated on the stacker in the order of discharge. However, as shown in FIG. 7, in the case of a small form, the form moves forward on the stacker 60 because the distance from the discharge port to the guide 68 is larger than the form length. Then, when the next form is ejected, the leading end of the form slips under the rear end of the form ejected before, and there is a problem that the order of stacking on the stacker 60 is interchanged. Was. The form is a stacker 6
Since it moves forward on zero, it does not accumulate in an orderly shape, and there is a problem that it is unsightly and inconvenient to handle later.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sheet conveying apparatus capable of accumulating sheets discharged onto a stacker in an orderly manner.

[0006]

According to the present invention, a paper sheet transport device transports a paper sheet (S) by a feed roller (3), discharges the paper sheet from an outlet (6) , and stacks the paper sheet on a stacker (7) . In the paper sheet transport device, an operation unit (10, 12) rotatably provided near the outlet and pushed up by contacting a sheet discharged from the outlet, and interlocking with the operation unit. The sheet is provided near the discharge port and does not contact a sheet contacting the operation unit.
Depressed portions depressing the paper leaves on the stacker after leaving al in contact with the upper surface of the rear end of the paper sheet and a (11, 13).

[0007]

The sheet sent out from the outlet contacts the operation section and pushes it up. Since the push-down unit is lifted in conjunction with the operation unit, it does not contact the paper sheet. This paper leaves Fi
Fully discharged from the discharge port out of the Dorora, away from the operating unit, Ru followed the depressed portion has been lowered together with the operating portion presses the upper surface of the rear end of the paper sheet <br/>. Therefore, the paper sheets discharged onto the stacker are stopped at a predetermined position, and are stacked in order in the discharging order.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A sheet transport device 1 according to a first embodiment will be described with reference to FIGS. This apparatus 1 can be used as a sheet transport apparatus for discharging a read form onto a stacker in the image scanner described in the section of the related art.

As shown in FIG. 1 and FIG. 2, feed rollers 3 and 4 and a paper path 5 are provided in a housing 2 of the apparatus 1. The feed roller 3 faces the discharge port 6 of the housing 2, and can discharge paper sheets 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 at the discharge port 6 so as to be able to rotate without being restricted by the rotation of the drive shaft 8.
The weight 9 has a protrusion 10 as an operation unit at a base near the drive shaft 8, and the leading end of the sheet discharged from the feed roller 3 abuts on the protrusion 10.
The whole is turned upward.

The leading end of the weight 9 is a push-down portion 11 for holding down the rear end 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 unit 11 that rotates downward pushes down the trailing end of the paper sheet.

As shown in FIG. 3A, the sheet S sent from the outlet 6 hits the projection 10 of the weight 9 and
The weight 9 is lifted upward. Until the paper sheet S is completely discharged from the feed roller 3, the paper sheet S comes into contact only with the projection 10, and the pushing-down portion 11 at the tip of the weight 9 does not come into contact with the paper sheet S. Since the protruding portion 10 is located near the feed roller 3, the protruding portion 10 comes into contact with the paper sheet S at a position close to the portion where the paper sheet S is held. For this reason, compared with the case where the pressing unit 11 comes into contact with the paper sheet S being discharged,
Does not bend significantly, and the leading end of the paper sheet S does not push out the paper sheet S on the stacker 7, and the paper sheet S is smoothly discharged.

As shown in FIG. 3 (b), when the trailing end of the sheet S comes off the feed roller 3, the entire weight 9 starts to rotate downward by its own weight. Then, as shown in FIG. 3 (c), the pushing-down unit 11 at the tip of the weight 9 pushes down the rear end of the discharged sheet S, and the sheet S flies forward on the stacker 7 vigorously. To prevent. As a result, the discharged paper sheets S do not enter between the other paper sheets S stacked on the stacker 7, and each of the paper sheets S is stacked at a predetermined position on the stacker 7 in an orderly manner.

As shown in FIG. 4, even if a rotatable arm-shaped weight 20 is simply 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 the tip. For this reason, the leading end of the discharged sheet S pushes the sheet S accumulated on the stacker, so that the order is likely to be changed and the order is lost. The shape and position of the protrusion 10 may be appropriately set in consideration of the timing at which the pressing unit 11 presses down the paper sheet S.

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

According to the structure of this embodiment, the same operation and effect as those of the first embodiment can be obtained. That is, the paper sheet discharged from the feed roller 3 first hits the operation unit 12 and lifts the operation unit 12 and the pressing unit 13 upward, and the rear end of the paper sheet discharged and separated from the operation unit 12 is pressed by the pressing unit 13. It is held down.

[0017]

[Effects of the Invention] As described above, according to the present invention,
The sheet leaves the feed roller and is discharged onto the stacker
Later , the upper surface of the rear end of the paper sheet is pushed down by a weight to suppress the momentum of the paper sheet, so that the paper sheets discharged onto the stacker can be stacked neatly in the discharged order.

[Brief description of the drawings]

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

FIG. 2 is a schematic plan view of one embodiment.

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

FIG. 4 is a view showing the operation of a weight without a protrusion.

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

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet conveyance apparatus (device) 6 Discharge port 7 Stacker 10 Projection part as an operation part 11, 13 Depressed part 12 Operation part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65H 31/26 B65H 29/52

Claims (1)

(57) [Scope of request for utility model registration] A paper sheet is fed by a feed roller (3).
(S) is conveyed and discharged from the discharge port (6) ,
(7) In the sheet transport device to be loaded on the upper side, the operation unit (1) rotatably provided near the discharge port and pushed up in contact with the sheet discharged from the discharge port.
0, 12), provided in the vicinity of the discharge port so as to interlock with the operation unit, and do not contact a sheet contacting the operation unit ;
Leaf paper sheet transport device having a depressed portion and (11, 13) to push down the the paper leaf in contact with the upper surface of the rear end of the paper sheet after leaving from the operating unit on the stacker.