JP5820717B2 - Small bundle bill detection sensor - Google Patents

Description

  The present invention relates to a small bundle bill detection sensor.

  There is a cash management device used when replenishing cash to a cashier or collecting cash from a cashier (see, for example, Patent Document 1). Such a cash management apparatus may be provided with a small bundle banknote detection sensor that detects a small bundle banknote for managing the amount of money in the apparatus.

  The small bundle bill detection sensor receives the reflected light from the small bundle bills of the emitted light from the light emitting element by the light receiving element, and detects the boundary position between the bundle bands or the bundle band and the bill portion and the boundary position from the change in the level. Some of them determine the quantity of small banknotes. That is, since the light reception level of the reflected light from the bundle band is high and the boundary position between the bundle bands and the bill portion has a low light reception level of the reflected light, the boundary position between the bundle bands and the boundary position between the bundle band and the bill portion are detected from these. . In such a conventional small bundle bill detection sensor, a pair of light emitting element and light receiving element are arranged in the direction of relative movement of the bundle band.

JP 2008-310519 A

  As described above, in the small bundle bill detection sensor in which the pair of the light emitting element and the light receiving element are arranged in the direction of the relative movement of the bundle band, in order to ensure the detection accuracy, the pair of the light emitting element and the light receiving element is relative to the bundle band. There is a problem that it is necessary to perform detection in a row in a direction orthogonal to the moving direction, which increases the cost. The emitted light of the light emitting element shows a distribution in which the front is the strongest and gradually weakens at a position with respect to the front, but the irradiation range is relatively wide, and thus affects the output of the light receiving element of the reflected light from the small bundle bill Since the range becomes wider and the received light level becomes lower, and the change in the received light level at the boundary position of one light receiving element becomes smaller, the number of pairs is increased to compensate for this and the accuracy is ensured.

  This invention is made | formed in view of said point, and aims at provision of the small bundle banknote detection sensor which can reduce cost.

In order to achieve the above-mentioned object, the invention according to claim 1 is arranged so as to be able to face the bundle band relatively moved of the bundled banknotes formed by bundling banknotes in a bundle band, and arranged in a direction orthogonal to the direction of the relative movement. At least one of the light emitting element and the light receiving element, and the light emitted from the light emitting element to the small bundle banknote and the reflected light of the emitted light from the small bundle banknote are condensed in the relative movement direction. have a condenser lens, the light receiving element is characterized by being elongated in the perpendicular direction the light receiving portion.

The invention according to claim 2 is a light-emitting element and a light-receiving element that are arranged so as to be opposed to the bundle band that relatively moves a small bundle of banknotes that are bundled together with a bundle, and are arranged in a direction orthogonal to the direction of the relative movement, A condensing lens that condenses at least one of light emitted from the light emitting element to the small bundle banknotes and reflected light from the small bundle banknotes in the relative movement direction; The condensing lens is characterized in that a cross section has a fixed shape and extends in the orthogonal direction .

According to a third aspect of the present invention, in the first aspect of the present invention, the condensing lens is characterized in that a cross section has a fixed shape and extends in the orthogonal direction.

According to the first aspect of the present invention, the light emitted from the light emitting element is condensed in the direction of relative movement of the bundle band by the condenser lens and arranged in a direction orthogonal to the direction of relative movement of the bundle band with respect to the light emitting element. Since the light reaches the light receiving element, the change in the light receiving level of the light receiving element can be increased. Therefore, the number of light emitting elements and light receiving elements can be reduced, and the cost can be reduced.
Further, since the light receiving portion of the light receiving element is formed long in the direction orthogonal to the direction of relative movement of the bundle band, that is, in the extending direction of the edge of the bundle band, the change in the light reception level due to the edge of the bundle band can be further increased. .

According to the second aspect of the present invention, the light emitted from the light emitting element is condensed in the direction of relative movement of the bundle band by the condenser lens and arranged in a direction perpendicular to the direction of relative movement of the bundle band with respect to the light emitting element. Since the light reaches the light receiving element, the change in the light receiving level of the light receiving element can be increased. Therefore, the number of light emitting elements and light receiving elements can be reduced, and the cost can be reduced.
The condensing lens has a simple cross section and extends in the orthogonal direction. Therefore, the condensing lens condenses light in the direction of relative movement of the bundle with a simple structure, and the relative movement of the bundle with respect to the light emitting element. It is possible to irradiate light receiving elements arranged in a direction orthogonal to the direction.

  According to the invention according to claim 3, the condensing lens has a simple cross section and extends in the orthogonal direction, and thus, with a simple structure, condenses light in the direction of relative movement of the bundle, It is possible to irradiate the light receiving elements arranged in the direction orthogonal to the relative movement of the bundle band with respect to the light emitting elements.

It is a perspective view which shows the cash management apparatus with which the small bundle banknote detection sensor which concerns on one Embodiment of this invention is provided. It is a perspective view which shows the small bundle storage of the cash management apparatus provided with the small bundle banknote detection sensor which concerns on one Embodiment of this invention. It is a top view which shows the small bundle storage of the cash management apparatus provided with the small bundle banknote detection sensor which concerns on one Embodiment of this invention, Comprising: (A) is a small bundle set detection sensor arrange | positioned at a cash management apparatus main body, (B) shows the correspondence with the small bundle bill detection sensor arranged in the cash management apparatus main body. The small bundle banknote detection sensor which concerns on one Embodiment of this invention is shown, (a) is a front view, (b) is a side view, (c) is a bottom view. It is a front view which shows the sensor board | substrate of the small bundle banknote detection sensor which concerns on one Embodiment of this invention. It is XX sectional drawing of Fig.4 (a) which shows the small bundle banknote detection sensor which concerns on one Embodiment of this invention. It is YY sectional drawing of Fig.4 (a) which shows the small bundle banknote detection sensor which concerns on one Embodiment of this invention.

  The small bundle banknote detection sensor which concerns on one Embodiment of this invention is demonstrated below with reference to drawings.

  FIG. 1 shows a cash management apparatus 10 used when replenishing cash to a cashier or collecting cash from a cashier. The cash management apparatus 10 is installed in the clerk side space of the store and is handled by the clerk, and mainly stores small bundles of banknotes and metal bars at a position closer to the counter so as to be able to be loaded and unloaded.

  The cash management apparatus 10 includes a box-type cash management apparatus main body 11 and a storage 12 provided in the cash management apparatus main body 11 in a plurality of stages, specifically, eight stages in the vertical direction. These storages 12 can be opened and closed along the horizontal direction with respect to the cash management apparatus main body 11 via slide rails 13 provided on the left and right side walls. These storage boxes 12 are pulled forward and pushed backward, and are thus connected to the cash management apparatus main body 11 so as to be movable within a predetermined range only in the front-rear direction.

  The uppermost one of the multiple-stage storage boxes 12 is a preliminary storage box 12 (a), which is a non-bound rose banknote, an unwrapped rose coin, a soiled banknote, a soiled coin, and a cash voucher. Etc. Further, the remaining storage 12 is a small bundle storage 12 (b) in which the upper four stages store small bundles of bills, and the lower three stages are a bar metal storage 12 (c) in which metal bars are stored. It has become. Needless to say, the total number of storage boxes 12 and the number of small bundle storage boxes 12 (b) and bar metal storage boxes 12 (c) can be arbitrarily set.

  An upper part of the cash management apparatus main body 11 is provided with an operation display unit 15 for performing operation input by the operator and displaying the operation to the operator, and a printer 16 for outputting data by printing. The operation display unit 15 includes a display unit 17 that displays information such as operation guidance for the operator, a card reader 18 that scans the operator's ID card, an operation keyboard 19 that is operated by the operator, and an operator. And a sound generator 20 for outputting sound.

  The cash management apparatus main body 11 is provided with a lock mechanism (not shown) that individually locks the storage 12 in the closed state with respect to each of the plurality of storages 12, and each side of the plurality of storages 12. On the other hand, an indicator lamp 23 that is lit only when the lock mechanism is unlocked is provided.

  As shown in FIG. 2, the storage 12 includes a front plate portion 31 in which a handle 30 is provided in the center, a pair of side plate portions 32 extending rearward from the left and right sides of the front plate portion 31, and a pair of side plate portions. 32 has a frame 34 having a rear plate portion 33 for connecting the rear end portions of 32. The frame 34 is common to the small bundle storage 12 (b) shown in FIG. 2 and the bar metal storage 12 (c) shown in FIG.

  As shown in FIG. 2, the small bundle storage 12 (b) stores the bundled small bundle banknotes T so as to be able to be loaded and unloaded, and more specifically, a plurality of pieces fixed to the frame body 34, specifically, There are five small bundle trays 40 made of synthetic resin on the left and right sides.

  The small bundle banknote T is formed by bundling an accumulated banknote S obtained by stacking a predetermined number (specifically, 100) of banknotes s of a single denomination with a bundle t made of a binding tape. The bundle t is wound around a specified position of the stacked banknote S, and a pair of long portions t1 facing the both end surfaces in the stacking direction of the stacked banknote S along the short side direction of the banknote s, and the long portions t1. It has a pair of short parts t2 along the stacking direction of the stacked banknotes S so as to be tied. The short part t2 faces the long sides of all the banknotes s constituting the stacked banknote S.

  Each of the small bundle trays 40 includes a front wall portion 41 erected perpendicularly to the longitudinal direction of the body, a rear wall portion 42 erected perpendicularly to the longitudinal direction of the aircraft, and perpendicular to the lateral direction of the aircraft. A tray main body 45 having a pair of left and right side wall portions 43 erected and a horizontal bottom portion 44 that closes a lower portion of the portion surrounded by the side wall portions 43, and is open upward and recessed downward. A bill presser plate 46 provided on the bottom 44 of the main body 45 so as to be movable back and forth while being parallel to the front wall portion 41 and the rear wall portion 42, and the bill presser plate 46 is urged toward the rear wall portion 42. And a biasing member (not shown). On the bottom 44 of the tray body 45, a slide groove 47 for guiding the slide of the bill holder plate 46 and a sensor groove 48 for detecting the set of the small bundle bills T extend in the front-rear direction and penetrate in the vertical direction. Is formed.

  A small bundle of bills T is inserted into each small bundle tray 40 from above in a standing state where the long side direction of each bill s is left and right, the short side direction is up and down, and the thickness direction (stacking direction) is front and back. Thus, the small bundle banknotes T are placed on the bottom portion 44 in this standing state, and are sandwiched and stored between the rear wall portion 42 and the bill presser plate 46. The small bundle tray 40 can store 1 to 10 small bundles of bills T, and the plurality of small bundles of bills T are stacked in the front-rear direction while being in the above-mentioned standing state, and the rear wall portion 42 and the bill holder. It is sandwiched between the plates 46. That is, the small bundle tray 40 is formed with an upper opening-shaped bundle storage concave portion 49 that is recessed downward by the rear wall portion 42, the bill pressing plate 46, the pair of side wall portions 43, and the bottom portion 44. Thus, the small bundle banknote T is inserted and stored in the bundle storage recess 49 from above through its upper opening.

  Each of the small bundle trays 40 is determined so that only a small bundle banknote T of a single denomination set in advance is stored in the bundle storage recess 49, and accordingly, the small bundle storage 12 (b). Are provided with a bundle storing concave portion 49 which is a storing position of the small bundle bills T for each denomination.

  The width between the pair of side wall portions 43 constituting the bundle storage recess 49 of each small bundle tray 40 is slightly wider than the length of the small bundle banknote T of the denomination target. Further, the height of the bottom 44 constituting the bundle storage recess 49 of each small bundle tray 40 is small at the upper end portion of each small bundle tray 40 when the small bundle banknote T of the denomination to be stored is placed. The height position of the upper end portion in the bundle storage 12 (b) is set to be constant. That is, in the small bundle tray 40 for storing the small bundle bills T having a low height (the length in the short side direction of the bill s), the height position of the bottom portion 44 in the small bundle storage 12 (b) in which the small bundle tray 40 is disposed. The height of the bottom 44 of the small bundle tray 40 (b) in which the small bundle tray 40 storing the small bundle banknotes T that are high and high is low is low. However, the depth to the bottom 44 of each bundle storage recess 49 is set so as to protrude upward so that the stored small bundle banknote T can be easily taken out.

  In the bundle storage recess 49 of the small bundle tray 40, a small bundle banknote T of a denomination having a long length other than the set denomination and a small bundle banknote T of a denomination having a high height other than the set denomination are appropriate. This makes it difficult to store the paper in a simple manner, so that some erroneous storage is easily regulated. That is, the small bundle banknote T having a longer length than the set denomination small bundle banknote T is bent between the pair of side wall portions 43 and becomes difficult to store, and is higher than the set denomination small bundle banknote T. The small bundle banknote T interferes with the front plate portion 31 of the storage 12 immediately above, and pushes the small bundle storage 12 (b) in which the small bundle banknote T is stored into the cash management apparatus main body 11. Inhibit. Each bundle storage recess 49 is provided with a denomination specifying portion 50 on the upper surface of each side wall 43 to clearly indicate the denomination to be stored. In the case of banknotes distributed in Japan, since all types and heights are constant, the height position of the bottom 44 in the small bundle storage 12 (b) of all small bundle trays 40 is also constant. . The storage denomination data indicating the set denomination to be stored in each small bundle tray 40 is set in advance and stored in the storage unit.

  A small bundle storage 12 shown in FIG. 2 is provided at the front end of the lower part of the portion forming the small bundle storage 12 (b) of the cash management apparatus main body 11 shown in FIG. FIG. 3A shows an optical reflection type in which the set detection of the small bundle of bills T is performed via the sensor groove 48 at a position immediately below the respective sensor grooves 48 of the two right and left small bundle trays 40 in FIG. The small bundle set detection sensor 53 shown in FIG. Each sensor groove 48 shown in FIG. 2 is formed in accordance with the position of the bundle band t when the bundle band t of the small bundle banknotes T in the bundle storage recess 49 is on a predetermined side (left side when viewed from the front). Therefore, in each of the small bundle set detection sensors 53, as shown in FIG. 3A, the bundle band t of the small bundle banknotes T in the bundle storage recess 49 is on a predetermined side (left side when viewed from the front). Is arranged in accordance with the position of the bundle band t. The sensor groove 48 may be on the right side which is the other side, or on both the left and right sides. In any case, the small bundle set detection sensor 53 is not only a set detection but also a detection sensor for the bundle band t. It also functions as an auxiliary. For example, when there is a small bundle set detection sensor 53 on the left side, if the bundle band t is also on the left side, the small bundle set detection sensor 53 can also detect the bundle band t, and conversely, if the bundle band t is on the right side, The set detection sensor 53 can detect that there is no bundle band t on the left side.

  A small bundle shown in FIG. 3 (B) is provided at the front end of the upper part of the portion forming the small bundle storage 12 (b) of the cash management apparatus main body 11 shown in FIG. This is detected when there is a bundle t on the left side of the small bundle bills T of the small bundle trays 40 in each row at the upper adjacent positions of the two small bundle trays 40 in the left and right rows of the storage box 12 (b). The small bundle banknote detection sensor 55 of this embodiment is provided at a fixed position at a position and a position where a bundle band t is detected on the right side of the small bundle banknote T on the small bundle tray 40 in each row. . The small bundle banknote detection sensor 55 is attached to the cash management apparatus main body 11 with the detection direction facing downward.

  As shown in FIG. 4, the small bundle banknote detection sensor 55 includes a sensor substrate 60 and a transparent cover 61. As shown in FIG. 5, the sensor substrate 60 receives a light emitting element 64 having a spherical light emitting portion 64 a on a surface 63 of a plate-like substrate body 62 and reflected light of light emitted from the light emitting element 64. Two sensor portions 66 each including a pair of light receiving elements 65 each having a rectangular light receiving portion 65a are provided. For example, the light receiving portion 65a is formed so that the long side length is three times or more the short side length.

  These sensor portions 66 are illustrated in the same plane parallel to the surface 63 of the substrate body 62 as shown in FIG. 6 with the rectangular light receiving portions 65a of the light receiving elements 65 aligned in the lengthwise direction. As shown in FIG. 5, they are arranged on the same straight line (hereinafter referred to as a light receiving portion arrangement straight line). The light emitting element 64 of each sensor unit 66 is provided between two light receiving elements 65 constituting the same sensor unit 66 so as to be arranged on a light receiving unit arrangement line in a front view. It is provided at a position equidistant from each of the two light receiving elements 65 constituting the front view. Therefore, the light emitting parts 64a of all the light emitting elements 64 of the plurality of sensor parts 66 and the light receiving parts 65a of all the light receiving elements 65 are arranged on the same light receiving part arrangement line in a front view.

  As shown in FIGS. 5 and 6, a black resin is formed on the surface 63 of the substrate body 62 between the light emitting element 64 of each sensor unit 66 and the light receiving elements 65 on both sides, perpendicular to the light receiving unit arrangement line. An intermediate light-shielding wall 70 is erected. In addition, on the surface 63 of the substrate main body 62, the end light shielding made of a black resin is also orthogonal to the light receiving portion arrangement line on the outside of the light receiving element 65 on the side opposite to the other sensor portions 66 of each sensor portion 66. A wall 71 is erected. Further, the surface 63 of the substrate body 62 is made of black resin along the light receiving portion arrangement straight line on both sides in the extending direction of the plurality of intermediate light shielding walls 70 and the plurality of end light shielding walls 71 as shown in FIG. Long light shielding walls 72 are provided upright. One end of all intermediate light shielding walls 70 and one end of all end light shielding walls 71 are connected to one long light shielding wall 72, and the other ends of all intermediate light shielding walls 70 and all end light shielding walls 71 are connected. The other end is connected to the other long light shielding wall 72.

  The surface 63 of the substrate main body 62 covers all the sensor portions 66, all the intermediate light shielding walls 70, all the end light shielding walls 71, and all the long light shielding walls 72 as shown in FIGS. A transparent cover 61 shown in FIG. The transparent cover 61 has a rectangular frame shape standing on the base plate portion 75 so as to cover the base plate portion 75 bonded to the substrate body 62, the end light shielding walls 71 on both sides and the long light shielding walls 72 on both sides. The surrounding wall portion 76, a plate portion 77 having a constant thickness that closes the opposite side of the surrounding wall portion 76 from the base plate portion 75, and a condensing lens that is thicker than the plate portion 77 provided in the plate portion 77. Part (condensing lens) 78. The plate portion 77 is parallel to the surface 63 of the substrate body 62.

  As shown in FIG. 6, the condensing lens portion 78 includes an outer convex lens portion 80 that extends in parallel with the light receiving portion arrangement straight line and protrudes on the opposite side to the sensor portion 66 in the thickness direction of the plate portion 77. It has an inner convex lens portion 81 that extends parallel to the straight line and protrudes toward the sensor portion 66 in the thickness direction of the plate portion 77. The outer convex lens portion 80 has a cylindrical surface with a surface 80a opposite to the inner convex lens portion 81, and the inner convex lens portion 81 has a cylindrical surface with a surface 81a opposite to the outer convex lens portion 80. Yes. Both the surface 80a of the outer convex lens portion 80 and the surface 81a of the inner convex lens portion 81 have a cylindrical surface centered on the axis along the light receiving portion arrangement straight line. Therefore, the condensing lens portion 78 has a constant cross section. It has a shape and extends along the light receiving portion arrangement straight line.

  The small bundle bill detection sensor 55 is attached to the cash management apparatus main body 11 shown in FIG. 1 with the sensor substrate 60 on the upper side and the transparent cover 61 (that is, the front side) on the lower side. When the small bundle storage 12 (b) is pulled out from the cash management apparatus main body 11 or pushed into the cash management apparatus main body 11, the small bundle storage 12 (b) is vertically below the small bundle banknote detection sensor 55. ) Is reciprocated in the horizontal front-rear direction, and the small bundle banknote T stored in the small bundle storage 12 (b) shown in FIG. Will move. Then, the short part t2 of the bundle t of the small bundle banknotes T is reciprocated in the horizontal front-rear direction below the small bundle banknote detection sensor 55, and faces the small bundle banknote detection sensor 55 in the middle.

  Here, the small bundle banknote detection sensor 55 has the above-described light receiving unit arrangement straight line in a horizontal direction perpendicular to the reciprocating direction of the small bundle storage 12 (b) and the small bundle banknote T stored therein. It is attached along. Therefore, the light emitting element 64 and the light receiving element 65 of the small bundle banknote detection sensor 55 shown in FIG. 5 are short parts t2 of the bundle band t in which the small bundle banknote T formed by binding the banknotes s shown in FIG. Are arranged in a direction orthogonal to the direction of the relative movement. In other words, the light emitting element 64 and the light receiving element 65 of the small bundle bill detection sensor 55 are arranged along the boundary line between the small bundle bills T adjacent to each other in the relative movement direction, which are stored in the small bundle storage 12 (b). Are arranged along the boundary line between the bundles t of the small bundle banknotes T adjacent in the relative movement direction, or the boundary line between the bundle band t of the adjacent small bundle banknotes T and the portion of the stacked banknote S without the bundle band t. It has been.

  In the light receiving element 65, the light receiving portion 65a is formed long in a direction orthogonal to the direction of relative movement of the bundle band t stored in the small bundle storage 12 (b). In addition, the condensing lens unit 78 is a bundle band in which the light emitted from the light emitting element 64 to the small bundle banknote T and the reflected light of the emitted light from the small bundle banknote T are stored in the small bundle storage 12 (b). Light is condensed in the direction of relative movement of t.

  The small bundle banknote detection sensor 55 condenses the emitted light spreading in the direction of relative movement of the bundle band t of the light emitting element 64 of each sensor unit 66 in the direction of relative movement of the bundle band t by the condensing lens unit 78. T is irradiated, and the reflected light from the small bundle bill T is further condensed in the direction of relative movement of the bundle band t by the condenser lens portion 78 and received by the light receiving elements 65 adjacent to the light emitting element 64. .

  Here, as a combination of the elements, in one sensor unit 66, there are a combination of the light emitting element 64 and one light receiving element 65, and a combination of the light emitting element 64 and the other light receiving element 65, and the other sensor unit 66. The combination of the light emitting element 64 and the one light receiving element 65 and the combination of the light emitting element 64 and the other light receiving element 65 include a total of four combinations. Then, for each combination, an adjustment default value is set so that the output voltage with respect to the reference adjustment reflection plate is constant, and the input voltage of the light receiving element 65 is stored by encoder interruption for each combination.

  As described above, in the small bundle banknote detection sensor 55, each sensor unit 66 has the light emitting element 64 facing the light emitting direction downward, and the reflected light from below the light emitted downward is adjacent to the light emitting element 64. The two light receiving elements 65 receive light. As a result, the small bundle bill detection sensor 55 provided immediately above each of the small bundle storages 12 (b) stores each bundle of the small bundle storages 12 (b) that slides back and forth immediately below these. The currency detection reflection data, which is the reflected light data of the upper end portion of the small bundle banknote T stored in the recess 49, is acquired.

  Then, the control unit (not shown) reflects the amount of light reflected by the short portion t2 of the bundle t of the small bundle bill T from the money detection reflection data of each small bundle bill detection sensor 55 for each small bundle storage 12 (b). Is detected by detecting a portion where the amount of reflected light between the bundle band t and the bundle band t of the adjacent small bundle banknote T decreases and a portion where the amount of reflected light of the stacked banknote S decreases. T is detected. Based on this, the number of small bundle bills T is detected.

  According to the small bundle bill detection sensor 55 configured as described above, the light emitted from the light emitting element 64 is condensed in the direction of relative movement of the bundle band t by the condenser lens portion 78, and the relative movement of the bundle band t with respect to the light emitting element 64. Therefore, the range that affects the output of the light receiving element 65 is narrowed, and the change in the light receiving level of the light receiving element 65 can be increased. Accordingly, the number of light emitting elements 64 and light receiving elements 65 can be reduced, and the cost can be reduced. Specifically, conventionally, 16 pairs of light emitting elements and light receiving elements are required for one small bundle bill detection sensor, but the two light emitting elements 64 and the four light receiving elements 65 are equivalent as described above. Detection can be performed.

  Further, since the light receiving portion 65a of the light receiving element 65 is formed long in the direction orthogonal to the direction of relative movement of the bundle band t, that is, in the extending direction of the boundary edge portion of the bundle band t adjacent to the bundle band t or the stacked banknote S. The change in the light receiving level due to the boundary edge can be further increased. Therefore, the change in the boundary between the bundle band t and the bundle band t and the change in the boundary between the bundle band t and the stacked banknote S can be detected with higher accuracy.

  Further, the condensing lens unit 78 has a simple cross section and extends in a direction orthogonal to the direction of relative movement of the bundle band t, and thus has a simple structure and condenses light in the direction of relative movement of the bundle band t. Thus, it is possible to irradiate the light receiving elements 65 arranged in the direction orthogonal to the direction of relative movement of the bundle band t with respect to the light emitting elements 64.

  The condensing lens part 78 may be provided directly on the light emitting element 64 in addition to being provided on the transparent cover 61.

  Further, the condensing lens unit 78 uses at least one of the light emitted from the light emitting element 64 to the small bundle banknote T and the reflected light from the small bundle banknote T in the direction of relative movement of the bundle band t. It is sufficient to concentrate it.

  In addition, the range of the depth of focus may be selected widely based on the relationship between the distance between the light emitting element 64 and the light receiving element 65 and the small bundle bill T. Therefore, the outer convex lens part 80 and the inner convex lens part 81 of the condenser lens part 78 are selected. Any one of these may be eliminated, and this one side may be a flat surface or a concave lens portion.

55 Small bundle bill detection sensor 64 Light emitting element 65 Light receiving element 65a Light receiving part 78 Condensing lens part (Condensing lens)
s banknote t bundle band T small bundle banknote

Claims (3)

A light-emitting element and a light-receiving element arranged so as to be opposed to the bundle band which is relatively moved of the small bundle banknotes formed by bundling banknotes in a bundle band and arranged in a direction orthogonal to the direction of the relative movement;
Wherein possess a condensing lens for condensing at least either one in the direction of the relative movement of the reflected light from the small bundles bill emitting light and light emitting light to a small bundle banknotes of the light emitting element,
The light receiving element has a light receiving portion formed long in the orthogonal direction . A light-emitting element and a light-receiving element arranged so as to be opposed to the bundle band which is relatively moved of the small bundle banknotes formed by bundling banknotes in a bundle band and arranged in a direction orthogonal to the direction of the relative movement;
A condensing lens that condenses at least one of light emitted from the light emitting element to the small bundle banknotes and reflected light from the small bundle banknotes in the relative movement direction;
The condensing lens is small bundles bill detection sensor you characterized in that cross-section extending in the perpendicular direction forms a predetermined shape. The small bundle banknote detection sensor according to claim 1, wherein the condensing lens has a constant cross section and extends in the orthogonal direction.

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