JP3950984B2 - Paper sheet stacking prevention device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a paper sheet stacking prevention device that separates and feeds paper sheets one by one.
In particular, the present invention relates to a stacking prevention device that can prevent two bills from being put out.
The “paper sheet” used in this specification includes all sheet-like items such as banknotes, checks, securities, coupons, and gift certificates in addition to paper.
[0002]
As a small banknote dispensing device, for example, one disclosed in Japanese Patent Application Laid-Open No. 2001-67527 is known.
As shown in FIG. 7, the shape in the vicinity of the pressure contact portion between the feed roller 102 and the gate roller 103 of the guide 101 is a step.
That is, the height of the conveyance path 104 defined by the vertical wall surface 107 is equal to a plurality of paper sheets, and has an inclined surface 105 inclined with respect to the paper sheet conveyance direction.
[0003]
When the bill 108 is fed by the kick roller 106 in the direction of the feed roller 102 and the gate roller 103, the bill 109 on the bill 108 in contact with the kick roller 106 is also sent together.
Most of the sent banknotes are prevented from advancing by the wall surface 107 and further blocked by the inclined surface 105, and only the banknotes in contact with the kick roller 106 are sandwiched between the feed roller 102 and the gate roller 103 and sent out.
[0004]
In this case, since the guide has an inclined surface 105, a parallel portion for guiding the paper sheet must be disposed before and after the inclined surface.
Moreover, in order to send a banknote reliably, a feed roller and a gate roller are required for every parallel part.
[0005]
When two parallel parts having a feed roller and a gate roller are provided at the banknote outlet, the outlet becomes long and cannot be downsized.
Further, since the feed roller and the gate roller are arranged for each parallel portion, the cost increases.
[0006]
[Problems to be solved by the invention]
A first object of the present invention is to provide a stacking prevention device that separates and feeds stacked sheets one by one.
The second object of the present invention is to provide a small stacking prevention device suitable for a small banknote storage box.
A third object of the present invention is to provide an inexpensive anti-overlay device.
[0007]
[Means for Solving the Problems]
In order to achieve this object, the present invention provides:A first guide having a planar guide surface and a shaft that can be guided within a predetermined range up and down above the first guide, and can be moved away from the guide surface. Further, as the rotary resistor moves in a direction away from the rotary resistor that rotates with a rotational torque that gradually increases as it leaves, and a sheet that enters between the rotary resistor and the first guide, the rotary resistor gradually increases. A braking device that applies a pressing force to the rotation resistor to brake, and the thickness of one sheet or more set according to the sheet with respect to the guide surface on the downstream side of the rotation resistor; and A paper sheet stacking prevention apparatus comprising a fixed guide having arcuate surfaces facing each other at intervals of two sheets or less.
[0008]
In this configuration, the paper sheet fed from the storage unit by the feeding device enters between the guide surface of the first guide and the resistor.
That is, the paper sheet that contacts the feeding device is forcibly fed toward the resistor, and the paper sheet that contacts the paper sheet is also fed in the same direction by the frictional force.
This phenomenon continues, and a plurality of paper sheets reach between the guide surface and the resistor at the normal position.
[0009]
The resistor is rotated and pushed by the progress of the plurality of integrated paper sheets, and the distance from the guide surface is slightly increased.
Therefore, the paper sheet in contact with the guide surface does not contact the resistor and therefore hardly receives the traveling resistance.
However, a part of the overlapped paper sheets is subjected to the traveling resistance due to the rotational resistance of the resistor and is prevented from traveling, so that it is shifted along the outer surface of the resistor.
However, the overlapped paper sheet having a large adhesive force proceeds with the paper sheet in contact with the guide surface.
[0010]
As a result, the resistor is pushed away from the guide surface by a plurality of paper sheets and is braked by the braking device.
Therefore, the resistor has a very large rotational resistance and is substantially in a fixed state.
As a result, the bills that are prevented from proceeding by the resistor are stopped, and a sheet of paper that is in contact with the guide surface that is not blocked by the resistor passes between the guide surface and the resistor and is sent out.
[0011]
As a result, the present invention ensures a smooth movement of the paper sheet by the rotatable resistor, and the resistor is moved to be in a substantially fixed state, so that further progress of the overlapping paper sheets is achieved. To prevent overlaid.
Accordingly, the paper sheets can be prevented from being overlaid in a single stage, and can be configured compactly.
Further, the present invention does not use a feed roller and a guide roller, and can be manufactured at a low cost.
[0011]
In the present invention, it is preferable that a fixed guide having an arcuate surface fixed at an interval of not less than one sheet thickness and not more than two sheets with respect to the guide surface on the downstream side of the resistor.
In this configuration, when the overlapped paper sheet passes between the guide surface and the resistor, the paper sheet enters between the guide surface and the fixed guide, but the minimum distance between the guide surface and the fixed guide is the paper sheet. 1 or more and 2 or less.
Therefore, the paper sheets other than the paper sheet in contact with the guide surface are prevented from advancing by the arcuate surface of the fixed guide, and only one paper sheet in contact with the guide surface is sent out to the outlet.
As a result, the present invention can ensure smooth movement of the paper sheet by the rotatable resistor, and prevents the paper sheet from entering further by the resistor being in a substantially fixed state.
Furthermore, since only one sheet of paper passes through the guide surface and the fixed guide, one sheet of paper can be reliably sent out.
Further, the two-stage overlap eliminating portion is constituted by the guide surface, the resistor, and the fixed guide, so that it is compact.
Further, the present invention does not use a feed roller and a guide roller, and can be manufactured at a low cost.
[0008]
It is preferable that the present invention includes a second fixed guide that is positioned between the fixed guide and the resistor, and is separated from the guide surface by a plurality of thicknesses of the paper sheet and fixed.
In this configuration, when the paper sheet is about to jam between the resistor and the guide surface, the resistor is separated from the guide surface by the pressing force of the paper sheet.
In the middle of the movement, the resistor is braked by the braking device and becomes substantially fixed.
[0013]
As a result, the paper sheet is subjected to a large traveling resistance by the fixed resistor, and a part of the paper sheet is stopped by the resistor.
However, when a plurality of paper sheets are united to enter between the guide surface and the resistor, the resistor is further separated from the guide surface.
As a result, the plurality of paper sheets are sandwiched between the guide surface and the second fixed guide.
[0014]
Therefore, since no more paper sheets are sandwiched between the guide surface and the second fixed guide, the contact pressure between the paper sheets decreases.
Therefore, the plurality of paper sheets move to the guide surface and the fixed guide side, and as described above, only the paper sheets in contact with the guide surface pass through them and are sent out of the paper sheet storage unit.
This configuration can more reliably eliminate the overlap of paper sheets.
[0015]
The present invention preferably has a rotatable guide roller juxtaposed to the resistor.
With this configuration, when the front edge of the paper sheet is curled, the front edge of the paper sheet can be slid between the resistor and the guide surface.
More specifically, the curled leading edge contacts the peripheral surface of the resistor and simultaneously contacts the guide roller collecting surface.
[0016]
Since the guide roller is in contact with the paper sheet, it is rotated as the paper sheet advances.
Therefore, the peripheral surface of the guide roller moves so as to approach the guide surface.
By this movement, the leading edge in contact with the peripheral surface of the guide roller is moved to the guide surface side by the moving peripheral surface.
Finally, the leading edge of the paper sheet is sandwiched between the guide surface, the resistor, and the guide roller.
Then, only one sheet is sent out as described above.
[0017]
In the present invention, it is preferable that the frictional resistance of the guide roller peripheral surface is smaller than the frictional resistance of the resistor.
In this configuration, the front edge of the paper sheet is easier to slide on the peripheral surface of the guide roller than on the peripheral surface of the resistor.
That is, as described above, when the front edge of the paper sheet contacts the guide roller, it is easy to slip.
The peripheral surface of the guide roller is an arcuate surface that is inclined toward the guide surface.
[0018]
As a result, the leading edge of the paper sheet is guided by the peripheral surface of the guide roller and enters between the guide surface and the guide roller.
Therefore, even when the resistor is in a substantially fixed state, the leading edge of the paper sheet can be guided between the resistor and the guide surface.
[0019]
A first guide having a planar guide surface, a fixed guide having an arcuate surface fixed at an interval of not less than one sheet and not more than two sheets with respect to the guide surface; and A pair of rotational resistors located on both sides of the fixed guide on the banknote storage side and rotatably mounted on the shaft and movable away from the guide surface, and disposed on both sides of the rotational resistor And a guide roller that moves integrally with the rotation resistor, and that is rotatable, and a braking device that brakes the rotation resistor when the rotation resistor is separated from the fixed guide by at least one sheet. It is preferable to comprise.
[0020]
In this configuration, the paper sheet fed from the storage unit by the feeding device first enters between the guide surface of the first guide and the resistor.
That is, the paper sheet that contacts the feeding device is forcibly sent to the outlet side, and the paper sheet that contacts this paper sheet is also fed in the same direction by the frictional force.
This phenomenon continues and a plurality of paper sheets reach between the guide surface and the resistor at the normal position.
[0021]
Of the plurality of paper sheets, the paper sheet that is in contact with the guide surface does not contact the resistor, and therefore does not receive the traveling resistance.
However, the overlapping paper sheets are subjected to a resistance to travel by the rotational resistance of the resistor and are prevented from proceeding.
However, the overlapped paper sheet having a large adhesive force proceeds with the paper sheet in contact with the guide surface.
[0022]
In this state, the resistor is pushed away from the guide surface by the plurality of paper sheets, so that the plurality of paper sheets enter between the guide surface and the resistor.
When the resistor is separated from the guide surface by a predetermined amount, the resistor is braked by the braking device, and the resistor has a very large rotational resistance and is substantially fixed.
[0023]
Further, since the guide roller is rotated by the movement of the banknote, the leading edge of the paper sheet in contact is sent to the guide surface side.
Therefore, the leading edge of the paper sheet is pushed between the guide surface, the guide roller, and the resistor by the guide roller.
Since the resistor does not rotate, only the several sheets that have entered between the guide surface and the resistor are sent further to the outlet side, and the contact pressure between the sheets decreases.
[0024]
Next, the paper sheet tries to enter between the guide surface and the fixed guide.
At this time, the paper sheet between the pair of resistors advances between the guide surface and the fixed guide.
Therefore, since the paper sheet pressed by the resistor advances between the guide surface and the fixed guide, the paper sheet is reliably guided between the guide surface and the fixed guide.
The fixed guide has an arcuate shape, and the distance from the guide surface is gradually narrowed, and finally the distance becomes one or more sheets and two or less sheets.
For this reason, only one sheet of paper in contact with the guide surface is sent out of the storage unit.
[0025]
As a result, the present invention ensures smooth movement of the paper sheet by the rotatable resistor, and the resistor is substantially fixed by the braking device when a plurality of paper sheets try to enter together.
Therefore, the resistor prevents further entry of a part of the paper sheet, and can be separated into several paper sheets by a compact structure.
Further, since the paper sheet pressed by the pair of resistors enters between the guide surface and the fixed guide, the paper sheet can smoothly enter between them.
Further, the present invention does not use a feed roller and a guide roller, and can be manufactured at a low cost.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a banknote storage device equipped with the stacking prevention device of the embodiment.
FIG. 2 is a perspective view of the overlay preventing device of the embodiment.
FIG. 3 is a rear view of the overlay preventing device of the embodiment.
4 is a cross-sectional view taken along line YY in FIG.
5 is a cross-sectional view taken along line XX in FIG.
6 is a cross-sectional view taken along the line ZZ in FIG.
[0027]
The present embodiment is an example in which banknotes are used as paper sheets.
The banknote storage apparatus 11 provided with the stacking prevention apparatus 10 of the present embodiment is mounted on, for example, a banknote dispensing apparatus of a vending machine.
In FIG. 1, banknotes are stacked on a rectangular banknote storage unit 13 surrounded by a side plate 12.
Overlay prevention device 10 is arranged at the bottom of front plate 12f.
[0028]
The stacking prevention device 10 is arranged on the banknote storage unit 13 side of the flat plate-shaped first guide 14, the first guide 14, the fixed guide 15 arranged at an interval of one or more and two or less bills, and the fixed guide 15. And a resistor 16.
Further, the stacking prevention device 10 includes a first guide 14 and a second fixed guide 17 that is disposed one or more bills apart.
Furthermore, the overlay preventing apparatus 10 includes a pair of guide rollers 36a and 36b disposed on both sides of the resistor 16.
[0029]
First, the first guide 14 will be described.
The first guide 14 has a flat plate shape that is continuous with the bottom plate 19 of the banknote storage device 13, and is formed of a wear-resistant resin.
The upper surface of the first guide 14 is a guide surface 20.
The guide surface 20 only needs to have a function of guiding bills.
[0030]
Next, the fixed guide 15 will be described.
The fixed guide 15 has a cylinder shape in which a rubber ring is mounted on a metal bush, and is disposed above the first guide 14.
The rubber ring is molded from, for example, hard urethane rubber.
[0031]
Both ends of the fixed guide 15 are fixed to stays 21 and 22 extending from the front wall 12f.
A guide plate 15a made of sheet metal is disposed on the side of the bill storage unit 13 of the fixed guide 15. (See Figure 5)
The lower end portion of the guide plate 15a has an inclined surface 15b where the distance from the guide surface 20 decreases from the bill storage portion 13 toward the fixed guide 15.
[0031]
As shown in FIG. 5, the arcuate surface 23 of the fixed guide 15 is formed in an arcuate shape having a larger diameter than the other peripheral surfaces.
The inclined surface 15b substantially forms an extension of the arcuate surface 23.
The distance between the tip of the inclined surface 15b and the guide surface 20 is set to be equal to or greater than the minimum distance between the arcuate surface 23 and the guide surface 20.
[0032]
Therefore, the fixed guide 15 is a combination of the inclined surface 15b of the guide plate 15a and the arcuate surface 23.
The interval between the inclined surface 15b on the banknote storage unit 13 side and the guide surface 20 is about three sheets of paper thickness.
The distance between the guide surface 20 and the arcuate surface 23 decreases as the distance from the banknote storage unit 13 increases, and the distance between the narrowest arcuate surface 23 and the guide surface 20 is one or more and two or less of the thickness of the paper sheet. It is.
In other words, only one bill can pass through the bill outlet 24.
[0032]
The guide surface 20, the arcuate surface 23, and the inclined surface 15b form a wedge-shaped first entry space 25 on the banknote storage part 13 side of the banknote outlet 24.
As the material of the fixed guide 15 and the guide plate 15a, other materials can be used as long as they have excellent wear resistance and a large friction coefficient.
The fixed guide 15 can be manufactured at a low cost when the arcuate surface 23 is formed by processing a commercially available rubber roller.
[0032]
When the bill is about to jam at the bill exit 24, the fixed guide 15 can be automatically separated slightly from the guide surface 20.
Therefore, it can be combined with the device of Japanese Patent Application No. 2001-216087 relating to the application of the present applicant.
[0033]
Next, the resistor 16 will be described.
Inclined long holes 32 are formed in the brackets 31a and 31b protruding from both side ends of the front wall 12f.
The inclined long hole 32 is inclined so as to be away from the guide surface 20 as it is away from the bill storage part 13.
In other words, the inclined long hole 32 is inclined downward to the right at an angle of about 45 degrees in FIG.
[0035]
The shaft 33 penetrates the left and right inclined long holes 32 so as to be slidable. Cylindrical resistor 16That is, the roller-shaped rotational resistor 16 isThe shaft 33 is rotatably fitted in the middle.Therefore, in the present invention, the resistor 16 is a rotating body that rotates about the shaft 33. The resistor, i.e. the rotational resistor (16),A metal shaft 33 penetrates through a shaft hole 33a formed of hard urethane rubber and formed in the center of the shaft.
A bush can be fitted into the shaft hole 33a, and the shaft 33 can be passed through the shaft hole of the bush.
[0036]
When the bush is inserted, since the rotational resistance of the resistor 16 is small, it is effective for the smooth entry of banknotes.
In the embodiment, the resistor 16 is constituted by two of a first resistor 16 a and a second resistor 16 b and is disposed on both sides of the fixed guide 15.
In other words, the first resistor 16a and the second resistor 16b are arranged with the fixed guide 15 interposed therebetween.
[0037]
With this arrangement, when the leading edge of the bill is curled, the leading end of the bill can be pressed by the first resistor 16a and the second resistor 16b to smoothly enter between the fixed guide 15 and the guide surface 20.
One or more resistors 16 can be arranged.
In addition, when the smooth movement of the resistor 16 can be ensured, the inclined long hole 32 can be moved in a direction orthogonal to the guide surface 20.
[0038]
The first resistor 16a and the second resistor 16b are arranged at a predetermined distance from the guide surface 20.
That is, when the shaft 33 is stopped by the lower end of the inclined long hole 32, the interval between the guide surface 20 and the lower peripheral surfaces of the first resistor 16a and the second resistor 16b is set smaller than the thickness of the bill. Yes.
[0039]
The guide surface 20, the first resistor 16 a and the second resistor 16 b constitute a pre-outlet 34.
Therefore, the pre-outlet 34 is located closer to the banknote storage unit 13 than the banknote outlet 24.
A wedge-shaped second entry space 35 is formed on the banknote storage 13 side by the guide surface 20 and the peripheral surfaces of the first resistor 16a and the second resistor 16b.
[0040]
Next, the guide rollers 36a and 36b will be described.
A first guide roller 36a and a second guide roller 36b are rotatably fitted to shafts 33 on both sides of the first resistor 16a and the second resistor 16b.
The guide rollers 36a and 36b are molded into a cylinder shape from polyacetal resin.
Therefore, the frictional resistance of the guide rollers 36a and 36b is smaller than that of the resistors 16a and 16b, and the shaft 33 penetrates the shaft hole.
[0041]
The guide rollers 36a and 36b have the same diameter as the resistors 16a and 16b.
A bush can be fitted into the shaft holes of the guide rollers 36a and 36b, and the shaft 33 can be passed through the shaft holes of the bushes.
In this configuration, since the guide rollers 36a and 36b rotate smoothly, the guide effect of the banknote tip is improved.
[0042]
A wedge-shaped third entry space 37 is formed on the banknote storage unit 13 side by the peripheral surfaces of the guide rollers 36a and 36b and the guide surface 20.
A space between the guide rollers 36a and 36b and the guide surface 20 is a second pre-outlet 38.
By making the friction resistance of the guide rollers 36a, 36b against the bill smaller than that of the resistors 16a, 16b, the tip of the bill can be easily guided to the second pre-outlet 38 by sliding on the peripheral surfaces of the guide rollers 36a, 36b. Yes.
[0043]
The guide rollers 36a and 36b can not be used when a bill smoothly enters between the guide surface 20 and the resistor 16.
Moreover, in order to improve the guide effect, three or more can be arranged.
Further, the guide rollers 36a and 36b can be made of hard urethane rubber or the like, like the resistor 16.
Furthermore, it is possible to brake with the braking device 42 as with the resistor 16.
In this case, the guide rollers 36a and 36b are resistors.
[0043]
The shaft 33 between the first resistor 16a and the first guide roller 36a and between the second resistor 16b and the second guide roller 36b is chamfered to form a flat portion 40. (See Figure 6)
The first pressing portion 42a and the second pressing portion 42b of the first plate spring 41a and the second plate spring 41b fixed to the front plate 12f are pressed against the flat portion 40.
[0044]
The shaft 33 is pushed to the right side in FIG. 5 by the first leaf spring 41a and the second leaf spring 41b.
As a result, the end portion of the shaft 33 moves along the inclined long hole 32 and stops at the lower end portion of the inclined long hole 32.
[0045]
A pressing force can be applied to the shaft 33 by a weight instead of the first leaf spring 41a and the second leaf spring 41b.
When the shaft 33 is stopped at the lower end of the inclined long hole 32, the pre-outlet 34 and the second pre-outlet 38 are held at an interval equal to or less than the thickness of one bill.
Further, since the flat portion 40 is pressed in surface contact with the flat plate-like first pressing portion 42a and the second pressing portion 42b, the shaft 33 does not rotate.
[0046]
Next, the braking device 42 will be described.
The braking device 42 has a function of braking the rotation of the resistor 16, that is, the first resistor 16a and the second resistor 16b.
The braking device 42 in the embodiment is a first braking plate 43a that is relatively disposed on the circumferential surface of the first resistor 16a and a second braking plate 43b that is relatively disposed on the circumferential surface of the second resistor 16b.
The first brake plate 43a is a rectangular plate extending downward from the first plate spring 41a, and the second brake plate 43b is extended downward from the second plate spring 41b.
[0047]
The first resistor 16a, the second resistor 16b, the first guide roller 36a, and the second guide roller 36b are more than the thickness of one bill due to the bills that have advanced into the second entry space 35 and the third entry space 37. When pushed up by a predetermined amount, the peripheral surfaces of the first resistor 16a and the second resistor 16b come into contact with the first brake plate 43a and the second brake plate 43b to be braked.
[0048]
That is, when the shaft 33 is pushed up, the shaft 33 is guided by the inclined long hole 32 and is slid leftward in FIG.
As a result, the first resistor 16a and the second resistor 16b move to the first braking plate 43a and the second braking plate 43b, and come into contact with each other.
When further pressed, the first resistor 16a and the second resistor 16b move to the left by bending the first brake plate 43a and the second brake plate 43b.
[0049]
As a result, the contact pressure between the first resistor 16a and the second resistor 16b and the first brake plate 43a and the second brake plate 43b increases, and the braking force of the first resistor 16a and the second resistor 16b increases. To do.
Since the first brake plate 43a and the second brake plate 43b are formed using a part of the first plate spring 41a and the second plate spring 41b for pressing the shaft 33, the brake device 42 is inexpensive.
As long as the braking device 42 has a function capable of braking the rotation of the resistor 16, that is, the first resistor 16a and the second resistor 16b, another mechanism can be employed.
[0050]
Next, the second fixed guide 17 will be described.
Since the second fixed guide of the bracket 31a is hidden, the second fixed guide 17 on the bracket 31b side will be described as a representative. (See Figure 4)
An inclination guide 50 is formed on the end surface of the lower end of the brackets 31a and 31b on the banknote storage part 13 side, and is inclined about 15 degrees with respect to the banknote traveling direction.
In the case of this angle, the banknote does not bite between the guide surface 20 and the second fixed guide 17.
[0051]
Following the inclined guide 50, a second fixed guide 17 is formed in parallel with the guide surface 20.
The distance between the second fixed guide 17 and the guide surface 20 is substantially the same as the distance between the arcuate surface 23 on the banknote storage portion 13 side.
Specifically, the thickness is three bills away.
[0052]
The first resistor 16a, the second resistor 16b, the first guide roller 36a, and the second guide roller 36b may have their lower surfaces separated from the guide surface 20 rather than the second fixed guide 17 as the shaft 33 moves. it can.
The first resistor 16a and the second resistor 16b come into contact with the first brake plate 43a and the second brake plate 43b immediately after the thickness of one bill is separated from the guide surface 20, and are started to be braked.
When the peripheral surfaces of the first resistor 16a and the second resistor 16b are separated from the guide surface 20 by the same degree as the second fixed guide 17, the contact pressure increases, so that the braking force increases and the fixed state is established.
[0053]
If the first resistor 16a, the second resistor 16b, the first guide roller 36a, and the second guide roller 36b are pushed by the bill and move along the tilted long hole 32, the tilt guide 50 is a part of the bill. Has the function of preventing the progression of
The inclination guide 50 is preferably in the range of 75 degrees to 90 degrees with respect to the bill traveling direction.
On the side of the banknote outlet 24 opposite to the banknote storage unit 13, an outlet guide 52 is disposed so as to face the guide surface 20.
[0054]
The distance between the outlet guide 52 and the guide surface 20 is larger than that of the banknote outlet 24.
An end of the outlet guide 52 on the banknote storage unit 13 side is located on the side of the fixed guide 15 and is inclined to guide the banknote.
The feeding roller 60 protrudes from the opening of the bottom plate 19 into the banknote storage unit 13, contacts the banknote, and is rotated counterclockwise based on a banknote feeding instruction. (See Figure 5)
[0055]
Next, the normal operation of the embodiment will be described.
The bills B1 to Bn are stacked in the bill storage unit 13.
When a bill dispensing instruction is received, the feeding roller 60 is rotated counterclockwise.
The lowest banknote B1 in contact with the roller 60 is moved to the left in FIG.
Along with the movement of the lowest banknote B1, the upper banknotes B2 to Bn are also moved to the left by the frictional force.
[0056]
First, the bills B1 to Bn enter the second entry space 35 between the guide surface 20 and the resistors 16a and 16b and the third entry space 37 between the guide surface 20 and the guide rollers 36a and 36b.
The first resistor 16a and the second resistor 16b have high rotational resistance due to frictional contact between the shaft 33 and urethane rubber.
[0057]
As a result, since the bills B2 to Bn are subjected to the resistance of progression by the resistors 16a and 16b, the lowest bill B1 further moves leftward.
Accordingly, the bills B2 to Bn are stepped along the peripheral surfaces of the first resistor 16a and the second resistor 16b.
[0058]
At this time, since the first resistor 16a and the second resistor 16b are not yet in contact with the first brake plates 43a and 43b, they are rotated clockwise in FIG. 4 as the bills B1 to Bn move.
Similarly, the first guide roller 36a and the second guide roller 36b are also rotated.
When the bill is further moved to the left in this state, the first resistor 16a, the second resistor 16b, the first guide roller 36a, and the second guide roller 36b are pushed up.
By this push-up, the shaft 33 is slid obliquely upward along the inclined long hole 32.
[0059]
For this reason, banknotes B2 to Bn are prevented from advancing by the first resistor 16a and the second resistor 16b by the rotational resistance of the first resistor 16a and the second resistor 16b, and only the bill B1 is the pre-outlet 34, the second 2 Pass through the pre-exit 38 and proceed to the entry space 25.
As a result, the lowest banknote B1 passes through the banknote outlet 24 and is further fed out between the guide surface 20 and the outlet guide 52.
[0060]
Accordingly, since only one piece in contact with the guide surface 20 is sent out by the resistor 16 and the guide surface 20, the fixed guide 15 can be omitted.
Next, the action at the time of abnormality will be described.
When the adhesive force of the bills B1 to Bn is large, they move together in the second entry space 35 and the third entry space 37 to the left.
Accordingly, the first resistor 16a, the second resistor 16b, the first guide roller 36a, and the second guide roller 36b are pushed up.
[0062]
When the first resistor 16a and the second resistor 16b slide by a predetermined amount, their peripheral surfaces come into contact with the first brake plate 43a and the second brake plate 43b, respectively.
For this reason, the resistors 16a and 16b have a large rotational resistance and are in a substantially fixed state, thereby preventing the progress of bills B3 to Bn located on the right side of the peripheral surface.
Therefore, only the bills B1 and B2 advance to the second entry space 35 and the third entry space 37.
When entering the first entry space 35, the bill B2 is prevented from moving on the inclined surface 15b.
[0060]
That is, the bill B2 is stopped stepwise along the fixed guide 15, that is, the peripheral surfaces of the inclined surface 15b and the arcuate surface 23.
Since the inclined surface 15b has a large inclination angle, the banknote B2 is prevented from progressing without causing the banknote to bite.
As a result, only the lowest banknote B1 passes through the banknote outlet 24 and is further fed out between the guide surface 20 and the outlet guide 52.
If the bills B1 and B2 pass between the guide plate 15a and the guide surface 20, the bill B2 is stopped in contact with the arcuate surface 23, and only the bill B1 in contact with the guide surface 20 passes through the bill outlet 24. Sent out.
[0061]
In the case where the adhesive force of the bills B1 to Bn is even greater, the bills proceed integrally even when the resistors 16a and 16b are in a fixed state.
For this reason, the first resistor 16a, the second resistor 16b, the first guide roller 36a, and the second guide roller 36b are pushed up above the second fixed guide 17.
Accordingly, the bills B4 to Bn are prevented from traveling by the inclined surface 50, and only the bills B1 to B3 enter between the guide surface 20 and the second fixed guide 17.
[0063]
Since the second fixed guide 17 is parallel to the guide surface 20, the bills B1 to B3 located between them are not subjected to the wedge action, so the frictional force between the bills B1 to B3 decreases.
Accordingly, the bills B1 to B3 proceed to the bill outlet 24 without jamming.
As described above, the bills B2 and B3 are prevented from advancing by the fixed guide 15, that is, the inclined surface 15b and the arcuate surface 23.
Then, only the lowest banknote B1 is sent out from the banknote outlet 24.
[0064]
Next, a case using a bill whose tip is curled upward will be described.
When the curled tips of the bills B1 to Bn come into contact with the first resistor 16a and the second resistor 16b, the bill tip strikes at a substantially right angle with respect to the peripheral surfaces of the rollers, so the first resistor 16a, The friction coefficient of the second resistor 16b is large, so it does not slide along the peripheral surface of the roller.
However, since the first guide roller 36a and the second guide roller 36b are made of resin and have a small coefficient of friction, the bills B1 to Bn are easy to slip.
[0065]
As the bills B1 to Bn travel, the first guide roller 36a and the second guide roller 36b are rotated clockwise in FIG. 4 by frictional contact with the bill Bn.
By the rotation, the tips of the bills Bn in contact with the first guide roller 36a and the second guide roller 36b outside the first resistor 16a and the second resistor 16b are pushed downward.
By this depression, the tips in contact with the first resistor 16a and the second resistor 16b are also moved downward and enter the lower side of the first resistor 16a and the second resistor 16b.
As described above, only the bottom banknote B1 is sent out from the banknote outlet 24.
[0066]
In the above description, the terms “upper”, “left”, “right”, “right”, and the like are used to assist the understanding of the description, and the present invention is not limited to these terms.
[0067]
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view of a banknote storage device equipped with a stacking prevention device of an embodiment.
FIG. 2 is a perspective view of an overlay preventing apparatus according to an embodiment.
FIG. 3 is a rear view of the overlay preventing device of the embodiment.
4 is a cross-sectional view taken along the line XX in FIG. 3. FIG.
FIG. 5 is a cross-sectional view taken along line YY in FIG. 3;
6 is a cross-sectional view taken along the line ZZ in FIG. 3. FIG.
FIG. 7 is an explanatory diagram of a conventional apparatus.
[Explanation of symbols]
13 Banknote storage
14 First guide
15 Fixed guide
16, 16a, 16b resistor
17 Second fixed guide
20 Information plane
23 Arc surface
36a, 36b Guide roller
42, 43a, 43b Braking device

Claims (5)

A first guide (14) having a planar guide surface (20) and a shaft (33) capable of being guided within a predetermined range above and below the first guide (14) are rotatable. A rotation resistor (16) that is movable away from the guide surface (20) and that rotates with a rotational torque that gradually increases as the distance from the guide surface (20), and the rotation resistor (16) and the first guide (14). And a braking device (42) for applying a pressing force that gradually increases as the rotational resistor (16) moves in a direction away from the rotating resistor (16) by a sheet of paper between the rotating resistor (16) and the braking device (42), Rotating resistor (16 ) A fixed surface having an arcuate surface (23) opposed to the guide surface (20) at a distance of not less than the thickness of one sheet set according to the sheets and not more than two with respect to the guide surface (20). guide ( 15 ) An apparatus for preventing paper sheets from being overlaid. Fixed guide ( 15 ) And rotating resistor ( 16 ) The guide surface is located between ( 20 ) The number of paper sheets that were separated from each other and fixed 2 Fixed guide ( 17 ) The paper sheet stacking prevention apparatus according to claim 1, comprising: The rotational resistor ( 16 ) Guide rollers that can be rotated in parallel with each other ( 36a, 36b ) The paper sheet stacking prevention apparatus according to claim 1, wherein the paper sheet is stacked. The guide roller ( 36 a , 36 b) The frictional resistance of the peripheral surface is the rotational resistor ( 16 ) The paper sheet stacking prevention apparatus according to claim 3, wherein the apparatus is set to be smaller than the frictional resistance. Flat guide surface ( 20 ) First guide with ( 14 ) And the guide surface ( 20 ) An arcuate surface that is fixed at an interval of two sheets or less and more than one sheet thick ( 23 ) Fixed guide with ( 15 ) And the fixed guide ( 15 ) Banknote storage ( 13 ) Side fixed guide ( 15 ) A pair of rotational resistors that are located on both sides of the shaft and are rotatably mounted on the shaft (33) and movable away from the guide surface (20) ( 16 a , 16 b) And the rotation resistor ( 16 a , 16 b) Rotating resistor placed on both sides ( 16 a , 16 b) Guide roller that moves in unison and rotates further ( 36 a , 36 b) And the rotation resistor ( 16 a , 16 b) Fixed guide ( 15 ) When the rotation resistor is at least one sheet away from ( 16 a , 16 b) Braking device to brake ( 43 a 43 b) And a paper sheet stacking prevention device.

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