JP4839142B2 - Contaminated liquid ejection device and liquid ejection nozzle - Google Patents

Description

  The present invention sprays a contaminated liquid such as colored ink from a liquid jet nozzle onto a banknote bundle when the cash storage case encounters accidental damage such as theft during transfer of the banknote storage case storing banknote bundles. The present invention relates to a pollutant ejecting device that stains bills unusable and a liquid ejecting nozzle provided in the device.

  A liquid jet nozzle for spraying a dirty liquid onto a banknote bundle is incorporated in this type of banknote-stained liquid jetting apparatus. As the liquid injection nozzle 30, for example, as shown in FIGS. 6 and 7, the nozzle cylinder 31 has a length corresponding to the total height of the banknote bundle, and the nozzle cylinder 31 has a plurality of locations in the cylinder axis direction. There is one in which a nozzle hole 33 having a narrow slit 32 that is long in the cylinder axis direction is formed (for example, see Patent Document 1).

The nozzle hole 33 has a circular cross-section (round hole) 35 communicating with the internal passage 34 of the nozzle cylinder 31 and a longitudinal direction of the cross-sectional circular hole 35, as shown in an enlarged view in part in FIG. 6. It forms in the form which has the slit 32 extended toward the side and opened toward the end surface of a banknote bundle. The slit 32 is formed by a split groove 37 of a ring-shaped member 36 of a cylindrical shape or a rectangular tube shape that is held in an outer fit at a position where the circular hole 35 of the cross section of the nozzle cylinder 31 is opened. That is, the ring-shaped member 36 is externally fitted and held so that the groove 37 matches the cross-sectional circular hole 35 and communicates with the portion where the circular cross-sectional hole 35 of the nozzle cylinder 31 is opened. A slit 32 is formed by the groove 37.
When such a liquid injection nozzle 30 is used, since the contaminated liquid is released into the slit 32 immediately after the cross-sectional circular hole 35 is ejected and spreads in a film shape in front of the slit 32, a single round hole is formed. Compared with the nozzle hole which consists only of this, the injection range of the contaminated liquid injected from the slit 32 in a film shape is expanded, and the contaminated liquid can be reliably attached to the entire height portion of the end face of the banknote bundle. .

JP 2000-320248 A (FIGS. 7 to 9)

However, in the liquid jet nozzle 30 in which the slit 32 of the nozzle hole 33 is formed by the split groove 37 of the ring-shaped member 36 fitted on the nozzle cylinder 31, the length of the split groove 37 that forms both ends of the slit 32 in the longitudinal direction. Since the direction ends 37a and 37b are in an open state, immediately after the spilled liquid is ejected from the cross-sectional circular hole 35, the slit 32 spreads in the cylinder axis direction, and the momentum (strength) is ejected toward the banknote bundle. Tended to occur, resulting in insufficient spraying force on the banknote bundle.
Further, since a ring-shaped member 36 separate from the nozzle cylinder 31 is required, the cost is increased, and the alignment of the ring-shaped member 36 with respect to the circular hole 35 in the cross section of the nozzle cylinder 31 is cumbersome and easy to assemble. There was difficulty.

  The present invention has been made in order to solve such a problem, and the object of the present invention is to have a nozzle hole that forms a slit in a circular hole in the cross section of the nozzle cylinder as described above. In the liquid jet nozzle of the pollutant jetting device, by devising the means for forming the slit, the pollutant can be ejected vigorously in the form of a film toward the banknote bundle and sprayed evenly and strongly on the entire banknote bundle. An object of the present invention is to provide a pollutant jetting device that can simplify the processing of nozzle holes with slits, and a liquid jet nozzle for the pollutant jetting device.

The pollutant ejecting device according to the present invention is installed in a cash storage case having a banknote storage section as described in claim 1, and pollutes a banknote bundle stacked and stored in the banknote storage section in response to an input of an activation signal. In the contaminated liquid ejecting apparatus including the liquid ejecting nozzle for spraying the liquid, the liquid ejecting nozzle is disposed to face the end face of the banknote bundle, and the liquid ejecting nozzle matches the total height of the end face of the banknote bundle. Nozzle holes are provided at a plurality of locations in the cylinder axis direction on the cylinder wall of the nozzle cylinder having a length, and each nozzle hole has a circular cross section formed in communication with the internal passage of the nozzle cylinder. A circular slit having a narrow width in the cylinder axial direction formed in communication with the circular hole on the opening end side of the circular hole in cross section, the circular hole having a smaller inner diameter than the inner diameter of the internal passage and the cylinder Wall thickness of nozzle hole forming part of wall The slit is formed to have a groove depth that extends from the circular hole in the cross-sectional direction on both sides in the cylinder axial direction and is smaller than the wall thickness, and the slit extends in the groove width direction. It is characterized in that it is formed in a shape surrounded by opposite side walls and end walls that connect both longitudinal ends of both side walls.
According to the contaminated liquid ejecting apparatus provided with the liquid ejecting nozzle having such a configuration, the linear flow of the contaminated liquid ejected from the circular hole in the cross section of the liquid ejecting nozzle is jetted forward as a film-like jet by the slit. Since the contaminated liquid collides with the end walls that dam the both ends in the longitudinal direction of the slit and is restricted from spreading in the cylinder axis direction, it is directed in the forward direction. And an overlapping part arises between the pollutants ejected so vigorously in the fan-shaped film form from the adjacent nozzle holes, and the pollutants are strongly sprayed uniformly over the entire banknote bundle.
In addition, since the slit of the nozzle hole is formed in the cylindrical wall of the nozzle cylinder together with the circular cross section, the slit 32 is formed by using a ring-shaped member 36 that is separate from the nozzle cylinder 31 as shown in FIGS. Compared to conventional nozzle processing with slits, processing can be performed easily and at low cost.

  According to a first aspect of the present invention, the inner surface of the opening tip of the circular hole can be formed into a concave curved surface. According to this, the contaminated liquid flows smoothly from the circular hole in the section along the concave curved surface toward the slit with little resistance, and can be sprayed vigorously toward the banknote bundle.

The liquid jet nozzle for the pollutant jet device according to the present invention is installed in a cash storage case having a banknote storage section as described in claim 3, and is stacked and stored in the banknote storage section in response to an input of an activation signal. In a liquid spray nozzle for spraying a pollutant provided in a pollutant jetting apparatus for spraying a pollutant liquid on a banknote bundle, the liquid jet nozzle is arranged to face an end face of the banknote bundle, and the liquid jet The nozzle is provided with nozzle holes at a plurality of locations in the cylindrical axis direction on the cylindrical wall of the nozzle cylinder having a length corresponding to the overall height of the end face of the banknote bundle, and each nozzle hole is provided in an internal passage of the nozzle cylinder. The cross-sectional circular hole formed in a communication shape, and a narrow slit long in the cylinder axis direction formed in communication with the circular cross-section hole on the opening side of the circular cross-sectional hole, Smaller than the inner diameter of the internal passage The slit is formed to have an inner diameter and a length shorter than the wall thickness dimension of the nozzle hole forming portion of the cylindrical wall, and the slit extends from the circular hole in the cross section in both directions in the cylinder axis direction and has a groove depth smaller than the wall thickness dimension. The slit is formed in a shape surrounded by both side walls facing each other in the groove width direction and end walls connecting the both ends in the longitudinal direction of the both side walls. Is.
According to such a liquid jet nozzle, as in the case of the operation of the pollutant jet device according to claim 1, the linear flow of the pollutant jetted from the cross-sectional circular hole of the liquid jet nozzle is formed into a film-like jet by the slit. When the liquid is ejected forward, the contaminated liquid collides with the end walls blocking the both longitudinal ends of the slit, and the expansion in the cylinder axis direction is restricted and directed in the forward direction. Increase the momentum flowing. And an overlapping part arises between the pollutants ejected so vigorously in the fan-shaped film form from the adjacent nozzle holes, and the pollutants are strongly sprayed uniformly over the entire banknote bundle. Moreover, since the slit of the nozzle hole is formed in the cylindrical wall of the nozzle cylinder together with the circular hole in cross section, compared with the conventional nozzle processing with a slit that forms the slit using a ring-shaped member separate from the nozzle cylinder described above. It can be processed easily and at low cost.

  According to the liquid-jet nozzle and the liquid-jet nozzle for the liquid-jet apparatus according to the present invention, the liquid can be ejected vigorously in the form of a film toward the banknote bundle and sprayed evenly and strongly on the entire banknote bundle. The attached nozzle hole can be easily and inexpensively processed into the nozzle cylinder.

  A preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a pollutant jetting device for banknote fouling installed in a cash storage case, FIG. 2 is a front view showing one end portion of a liquid jet nozzle provided in the pollutant jetting device, and FIG. 2 is an enlarged sectional view taken along line AA in FIG. 2, and FIG. 4 is an enlarged sectional view taken along line BB in FIG.

  In FIG. 1, reference numeral 1 denotes a cash storage case, and reference numeral 2 denotes a dirty liquid spouting device installed in the cash storage case 1. The cash storage case 1 is used as a cash storage cassette that is attached to and detached from an automatic cash dispenser of a financial institution. In the cash storage case 1, a banknote rack 4 is installed in a box-shaped case body 3 whose front is open, a banknote storage section 5 is provided above the banknote rack 4, and a space section 6 is provided below the banknote rack 4. Each is formed. A door 7 is attached to the front surface of the case body 3 so as to be openable and closable. The door 7 is opened so that a banknote bundle can be taken in and out of the banknote storage unit 5.

  The pollutant ejection device 2 controls the pollutant storage tank 8 in which the pollutant is stored in a pressurized state, the on-off valve 9 attached to the base 8 a of the pollutant storage tank 8, and the opening / closing of the on-off valve 9. For controlling the valve opening mechanism 10, the contaminated liquid distribution pipe 11 communicated with the outlet port of the on-off valve 9, the two liquid injection nozzles 12 connected to the distribution pipe 11, and the valve opening mechanism 10. The control device 13 and the control device 13 are provided with a fraud detection means 14 for inputting an activation signal of the valve opening mechanism 10 to the control device 13. And while the liquid storage tank 8 is installed in the said space part 6 with the on-off valve 9, the valve opening mechanism 10, the control apparatus 13, etc., the two liquid injection nozzles 12 are in the said banknote storage part 5. It is installed in a standing posture, and a pollutant distribution pipe 11 is connected to each lower end portion of the liquid jet nozzles 12.

  The cheating detection means 14 is provided to detect that cheating such as theft or removal of the cash storage case 1 has been performed. As the fraud detection means 14, for example, in addition to the linear sensor 81 stretched so as to cover the entire outer wall of the door 7 and the case body 3, unauthorized unlocking provided on the door 7 and the case body 3 is detected. A lock switch for detecting the door, a door switch for detecting an unauthorized opening of the door 7, a timer circuit for detecting that the door 7 has been left open for a certain period of time, a signal such as a door switch or a timer circuit is input. There are logic circuits.

  FIG. 5 is a block diagram illustratively illustrating the fraud detection means 14 and the control device 13. In the figure, 81 is the linear sensor, 82 is the lock switch, 83 is the door switch, 84 is a timer circuit, and 85 is a logic circuit. The linear sensor 81 detects that an illegal act has been performed by disconnecting the door 7 or the case body 3 when the door 7 or the case main body 3 is broken or pierced by an unauthorized means. The lock switch 82 and the door switch 83 detect that an illegal act has been performed when the door is unlocked or the door 7 is opened illegally. In FIG. 5, a plurality of these lock switches 82 and door switches 83 are provided. However, the number of these switches can be increased or decreased as necessary. The timer circuit 84 detects this when, for example, the two lock switches 82 are not opened during the set time. The logic circuit 85 detects this when the door 7 opening signal is output from the door switch 83 and when the unlocking signal is not output from the lock switch 82. In FIG. 5, the buzzer 86 is controlled by the control device 13.

  A state in which the case body 3 in which the banknote bundle M is stacked and stored in the banknote storage unit 5 is normally closed by the door 7 as can be seen by combining the pollutant ejection apparatus of FIG. 1 and the block diagram of FIG. If a fraudulent act is performed, for example, when the case body 3 or the door 7 is cut, punched or struck, the door 7 is forcibly opened, or the unlocking is attempted illegally, the linear switch 81 Disconnection, a lock switch 82, a door switch 83, a timer circuit 84, a logic circuit 85, etc., and an illegal act is detected, and the signal is input to the control device 13. Then, the control device 13 inputs an activation signal to the valve opening mechanism 10, and the valve opening mechanism 10 operates to open the on-off valve 9 with the input of the activation signal. When the on-off valve 9 is opened in this way, the turbid liquid pressurized in the pollutant storage tank 8 is fed to the liquid jet nozzle 12 through the on-off valve 9 and the pollutant distribution pipe 11, and the banknote is sent from the liquid jet nozzle 12. A dirty liquid is sprayed on the end face of the bundle M. In addition, the coloring liquid etc. which do not decolorize once it adheres to a contaminated liquid are used.

Next, the structure of the liquid injection nozzle 12 will be described with reference to FIGS.
In FIG. 1, two liquid ejecting nozzles 12 are illustrated as being arranged in a standing posture while being distributed to the left and right of the back of the banknote storage unit 5.

As shown in FIGS. 1 to 4, the liquid injection nozzle 12 is composed of a resin or metal nozzle cylinder 15 having a length corresponding to the total height of the banknote bundle M. Nozzle holes 17 are provided at regular intervals at a plurality of locations in the cylinder axis direction. Each nozzle hole 17 has a cross-sectional circular hole 19 formed in communication with the internal passage 18 of the nozzle cylinder 15, and a narrow width long in the cylinder axis direction formed in communication with the opening end side of the cross-sectional circular hole 19. It consists of a slit 20.
As shown in FIG. 3, the circular hole 19 is formed with an inner diameter d smaller than the inner diameter D of the internal passage 18 of the nozzle cylinder 15 and a length L shorter than the wall thickness T of the nozzle hole forming portion of the cylinder wall 16. Yes. On the other hand, the slit 20 extends from the opening of the circular cross-section hole 19 to both sides in the cylinder axis direction and is formed at a groove depth H smaller than the wall thickness T. As shown in FIGS. 2 and 3, the slit 20 has opposite side walls 20a and 20b opposite to each other in the groove width direction and long in the cylinder axis direction, and an end wall 20c that connects both longitudinal ends of the both side walls 20a and 20b. , 20d. As shown in FIG. 4, the inner surface of the opening tip of the circular hole 19 is formed as a concave curved surface 19a.

  Thus, since the slit 20 of the nozzle hole 17 opens in the cylindrical wall 16 of the nozzle cylinder 15 together with the circular hole 19 in the cross section, a conventional nozzle with a slit that forms a slit using a ring-shaped member separate from the nozzle cylinder. Compared with processing, processing can be performed easily and at low cost.

  According to the contaminated liquid ejection device 2 provided with such a liquid ejection nozzle 12, the nozzle cylinder 15 of the liquid ejection nozzle 12 arranged to face the end face M <b> 1 of the banknote bundle M matches the overall height of the banknote bundle M. The liquid injection nozzle 12 has a length, and the nozzle holes 17 having the slits 20 are provided at a plurality of locations in the cylinder axis direction of the nozzle cylinder 15, so that the contaminated liquid ejected from each nozzle hole 17 can be obtained. It spreads in a fan-shaped film shape in the cylinder axis direction of the nozzle cylinder 15, and an overlapping portion is generated between the fan-shaped film-like pollutants ejected from the adjacent nozzle holes 17, 17, and evenly over the entire height portion of the end face M 1 of the banknote bundle M. It is sprayed and adheres. The contaminated liquid attached in this way will unclean the banknote bundle M.

  In particular, the slit 20 of the nozzle hole 17 is formed in a shape in which both ends in the longitudinal direction of both side walls 20a and 20b facing each other in the groove width direction are connected to each other in a dam shape by the end walls 20c and 20d. When the linear flow of the polluted liquid ejected from the section 19 is jetted forward as a fan-shaped film that is expanded by the slit 20, the contaminated liquid collides with the end walls 20 c and 20 d at both ends in the longitudinal direction of the slit 20 and Since the spread in the direction is regulated and directed forward, the momentum flowing toward the end face M1 of the banknote bundle M is increased accordingly. And an overlapping part arises between the contaminated liquids ejected so vigorously from the adjacent nozzle holes 17 and 17 in the shape of a fan-shaped film, and the contaminated liquids can be strongly sprayed uniformly over the entire end face M1 of the banknote bundle M.

  In addition, by forming the inner surface of the opening tip of the circular hole 19 in the concave curved surface 19a, the contaminated liquid flows smoothly from the circular hole 19 along the concave curved surface 19a toward the slit 20 with little resistance. Can be vigorously blown toward the end face M1 of the bill and can be strongly blown against the end face M1 of the banknote bundle M.

It is a front view which shows the contaminated liquid ejection apparatus for banknote stains installed in the cash storage case of one Example of this invention. It is a front view which fractures | ruptures one end part and shows the liquid injection nozzle with which a contaminated liquid ejection apparatus is equipped. It is an AA line expanded sectional view in FIG. FIG. 3 is an enlarged sectional view taken along line BB in FIG. 2. It is the block diagram which illustrated the fraudulent act means, the control apparatus, etc. illustratively. It is a front view of the liquid injection nozzle of a prior art example. It is the CC sectional view taken on the line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cash storage case 2 Contamination liquid ejection apparatus 5 Banknote storage part 12 Liquid injection nozzle 15 Nozzle cylinder 16 Tube wall 17 Nozzle hole 18 Internal channel | path 19 Cross-section circular hole 20 Slit 20a, 20b Both-side wall 20c, 20d End wall M Banknote bundle

Claims (3)

In a polluted liquid ejection device provided with a liquid ejection nozzle that is installed in a cash storage case having a banknote storage part and sprays a liquid on a banknote bundle stacked and stored in the banknote storage part in response to an input of an activation signal,
The liquid ejecting nozzle is arranged to face the end face of the banknote bundle, and the liquid ejecting nozzle is arranged on the cylinder wall of the nozzle cylinder having a length corresponding to the total height of the end face of the banknote bundle. Nozzle holes are provided at a plurality of locations, and each nozzle hole is formed in a cross-sectional circular hole formed in communication with the internal passage of the nozzle cylinder, and the cross-sectional circular hole is in communication with the cross-sectional circular hole on the opening end side. The circular hole having a cross-sectional shape with an inner diameter smaller than the inner diameter of the internal passage and shorter than the wall thickness dimension of the nozzle hole forming portion of the cylindrical wall. The slits are formed to extend from the circular hole in the cross-sectional direction to both sides in the cylinder axis direction and have a groove depth smaller than the wall thickness dimension, and the slits are opposite side walls facing each other in the groove width direction. And the end connecting the longitudinal ends of both side walls Characterized in that it is formed surrounded by the form in the, polluted liquid jetting apparatus.   The pollutant ejecting apparatus according to claim 1, wherein an inner surface of an opening tip of the circular hole is formed in a concave curved surface. Installed in a cash storage case having a banknote storage unit, and for spraying a pollutant liquid provided in a pollutant spraying apparatus that sprays a liquid on a banknote bundle stacked and stored in the banknote storage unit in response to an input of an activation signal In the liquid injection nozzle,
The liquid ejecting nozzle is arranged to face the end face of the banknote bundle, and the liquid ejecting nozzle is arranged on the cylinder wall of the nozzle cylinder having a length corresponding to the total height of the end face of the banknote bundle. Nozzle holes are provided at a plurality of locations, and each nozzle hole is formed in a cross-sectional circular hole formed in communication with the internal passage of the nozzle cylinder, and the cross-sectional circular hole is in communication with the cross-sectional circular hole on the opening end side. The circular hole having a cross-sectional shape with an inner diameter smaller than the inner diameter of the internal passage and shorter than the wall thickness dimension of the nozzle hole forming portion of the cylindrical wall. The slits are formed to extend from the circular hole in the cross-sectional direction to both sides in the cylinder axis direction and have a groove depth smaller than the wall thickness dimension, and the slits are opposite side walls facing each other in the groove width direction. And the end connecting the longitudinal ends of both side walls Enclosed characterized in that formed in the shape, fluid ejection nozzle for polluted liquid discharge apparatus between.

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