JPH0330371Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a paper jam prevention mechanism for paper sheets, such as that installed in a banknote conveyance device of an automatic teller machine used in banking services, for example.

(b) Conventional technology Conventionally, when conveying paper sheets such as banknotes, slips, regular paper, securities, etc. as in the above-mentioned example, the paper sheets are usually conveyed between the facing surfaces of a pair of opposing belts. It is being held and transported.

(c) Problems to be solved by the invention By the way, on both sides of this type of belt conveyance path,
Usually, side wall guide plates are provided to prevent the edges of paper sheets from getting entangled in the belt.

However, in conveyance sections where side wall guide plates are not provided, paper sheets are likely to be conveyed at an angle (skew), and when sheets are skewed, their edges may come into contact with the side wall guide plates at the later stages. In this case, the folded folded part is transported with the folded part located on the back side of the belt, and it gets caught between the belt end pulley at the later stage and the belt reversing part, causing paper jams. Occur.

For this reason, currently side wall guide plates are installed throughout the long belt conveyance path.
Therefore, the large amount of side wall guide plates used increases the cost and the weight of the entire conveying device becomes enormous. Furthermore, when a paper jam occurs, visibility into the interior of the conveyance path is poor due to the side wall guide plate that covers the side surface of the conveyance path, and it is difficult to remove the paper jam.

Therefore, the purpose of this invention is to provide a paper jam prevention mechanism that can accurately eliminate paper jams without requiring any side wall guide plates that increase cost and add enormous weight to the entire conveying device. shall be.

(d) Means for solving the problem This invention provides a first belt and a second belt that sandwich and convey paper sheets in opposition to each other, and one end of these belts is provided before the terminal end pulley. It is located close to the center of the belt width on the back side of the belt, and the other end extends outward from the belt width toward the downstream side in the sheet conveyance direction, and is inclined in a direction away from the belt back side. A paper jam prevention mechanism for paper sheets is characterized in that a scraper and a shutter for stopping conveyed paper sheets are positioned substantially parallel to the scraper, and these scrapers and shutters are connected to an elevating device.

(E) Effect According to this invention, when paper sheets are conveyed skewed and folded back to the back side of the belt, the tip end of the scraper enters the folded part.
The folded portion is raised on the rising surface of the scraper, and at the same time, the paper sheet is temporarily stopped by the shutter to correct the skew of the paper sheet, and the lifting device raises the scraper and the shutter.
The scraper stretches the folded part of the paper sheet and returns it to its original shape.

(f) Effects of the invention As a result of the above, according to this invention, even if the edge of the paper sheet is folded back to the back side of the belt and conveyed in a skewed state, this folded part will not reach the rising edge of the scraper. The belt is raised by the surface and stretched by its rise, and the skew is corrected by the shutter, so by placing these scrapers and shutters in front of the pulley at the end of each belt and raising and lowering it. In addition, by correcting the skew, the sheet is conveyed without getting entangled with the pulley on the terminal end side, and it is also possible to prevent the folding of the edge of the sheet from occurring again during subsequent conveyance.

Furthermore, the scraper and shutter can take the place of the side wall guide plate and reliably prevent paper sheets from jamming, eliminating the need for any side wall guide plates, reducing costs and the overall weight of the conveying device. It can be made lighter.

Furthermore, by completely omitting these side wall guide plates, visibility to the belt conveying path becomes better and maintenance and inspection becomes easier.

(g) Example of the invention An example of the invention will be described below in detail based on the drawings.

The drawings show a paper jam prevention mechanism for banknotes that is installed in a banknote conveying device. In FIGS. It is composed of an upper belt 13 . . . , a lower belt 14 .

The above-mentioned upper belt 13 has a starting end pulley (not shown)
An upper support roller 18 and a lower support roller 19 are provided in the middle of the upper belt 13 to change the direction of the banknotes 12 in order to guide them in a predetermined transport direction. There is.

Then, a lower belt 1 is placed below this upper belt 13.
4 are in plane contact with each other, and these upper and lower belts 13, 1
The banknotes 12 are held and conveyed to the rear stage between the contact surfaces of the banknotes 4. The lower belt 14 is stretched between pulleys (not shown) on both the start end side and the end end side, and the end end side is extended to the banknote discharge port at the subsequent stage.

The above-mentioned scraper 15 is arranged before the terminal end pulley 17 of the upper belt 13 and the terminal end pulley (not shown) of the lower belt 14, but for convenience of illustration, it is arranged on the upper belt 13 side. Let me explain the case.

The base end of the scraper 15 is fixed to the free end of a tilting piece 21 whose one end is tiltably supported by the rear part 20 of the lower support roller 19, and the tip end is attached to the rear side of the upper belt 13. It is located close to the center of the width of the upper belt, and its base end extends outward from the width of the upper belt 13 toward the downstream side in the banknote conveyance direction, and tilts upward away from the back surface of the upper belt 13. It's being served.

Then, it is raised and lowered by a scraper lifting device 16, which will be described later, and is normally in a lowered state, and rises when the banknote 12 is conveyed to this location. At this time, even if the bill 12 having the folded part 22 is conveyed with the folded part 22 located on the back side of the upper belt 13, the folded part 22
is raised along the outwardly inclined rising surface of the scraper 15, and immediately extends outward in the belt width direction as the scraper 15 is raised.

Further, a shutter 23 arranged in parallel with the scraper 15 is fixed to the free end of the above-mentioned tilting piece 21 so as to be perpendicular to the conveying direction of the belt, and the banknote 12 conveyed by the shutter 23 is temporarily stopped. , allowing the scraper 15 to rise corresponding to the banknote 12, and correcting the skew corresponding to the banknote 12.

Then, the banknotes 12 stopped by the shutter 23 are lifted and lowered on the free end side of the tilting piece 21 via a scraper elevating device 16 using a solenoid or the like connected to the free end side of the tilting piece 21, whereby the scraper 15 is raised and lowered, and a shutter 23 integrated therewith is opened and closed.

The paper jam prevention mechanism for banknotes configured in this way prevents banknotes from jamming based on the driving operation of the banknote conveying device.
The banknotes 12 are held between the upper and lower belts 13 and 14 and conveyed to the rear stage, and are temporarily stopped at the shutter 23 position provided in front of the terminal end pulley 17 of the upper belt 13. In this case, if the banknotes 12 are skewed If so, it comes into contact with the shutter 23 and is corrected to an appropriate conveyance state.

Further, as shown in FIG. 2, when a banknote 12 having a folded part 22 on the upper side is conveyed,
Since this folded part 22 is located on the back side of the upper belt 13 where it is easy to get entangled with the terminal end pulley 17, the tip of the scraper 15 disposed on the back side of the upper belt 13 enters into this folded part 22, and The folded part 2 is formed on the outwardly inclined rising surface.
2 and raise and lower the scraper lifting device 16 in this state.
This scraper 1 along with the shutter 23 is
5 rises, the folded part 22 of the bill is extended outward in the width direction of the upper belt 13, and as a result, the folded part 22 bypasses the terminal end pulley 17 of the upper belt 13. transported by

After the scraper 15 has completed its lifting action to prevent paper jams, it is immediately lowered to prepare for the next banknote to be conveyed.

In the above-described embodiment, the scraper 15 is provided on the upper belt 13 side as a countermeasure for the case where the folded part 22 of the banknote 12 is formed on the upper surface side. is banknote 1
In order to deal with this, the above-described scraper 15 structure is also provided on the back side of the front stage of the terminal end pulley (not shown) of the lower belt 14.

In this case, the configurations of the scraper and the scraper lifting device are the same as those of the scraper 15 and scraper lifting device 16 disposed on the upper belt 13 described above, and there is no difficulty in arranging them. Detailed explanation will be omitted.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, in which Fig. 1 is a side view of the paper jam prevention mechanism for paper sheets, Fig. 2 is a plan view of essential parts of the paper jam prevention mechanism for paper sheets, and Fig. 3 is a side view of the paper jam prevention mechanism for paper sheets. FIG. 3 is a longitudinal sectional front view of the leaf paper jam prevention mechanism. 11... Bill paper jam prevention mechanism, 12... Bill, 13... Upper belt, 14... Lower belt, 15
...Scraper, 16...Scraper lifting device,
17... Terminal side pulley, 22... Turned part, 23
...Shattuta.

Claims (1)

[Claims for Utility Model Registration] A first belt and a second belt are provided which are opposed to each other and which sandwich and convey paper sheets, and one end of these belts has a belt width on the rear side of the belt before the terminal end pulley. a scraper located close to the center, the other end of which extends outward from the width of the belt toward the downstream side in the sheet conveyance direction and inclined in a direction away from the back surface of the belt, and the scraper; A paper jam prevention mechanism for paper sheets, in which a shutter for stopping conveyed paper sheets is positioned approximately parallel to the other, and these scrapers and shutters are connected to an elevating device.