JP2008077455A - Paper sheet identification machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet identification machine capable of attaching a photosensor in an accurate position without being affected by warpage and deformation of a circuit board. <P>SOLUTION: This paper currency identification machine 1 is arranged, in a paper currency conveying passage, with the transmission type photosensor for reading optical information of a paper currency conveyed along the paper currency conveying passage. Photoreception elements 11b-13b of the transmission type photosensor are adhesion-fixed onto a sensor holding member 50. Lead terminals 11c-13c led out from the respective photoreception elements 11b-13b are connected electrically to the circuit board 33 via a flexible lead wire 33a. Positions of the photoreception elements 11b-13b are prevented from being shifted even when the circuit board 33 is warped or deformed, and identification precision is thereby prevented from getting worse. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a paper sheet identification machine that uses a photosensor to read optical information of paper sheets such as banknotes, and identifies a paper sheet based on the read optical information. The present invention relates to a paper sheet discriminator that can prevent a positional deviation of a paper sheet passing through the detection position and perform a discrimination operation with high accuracy.

  Between the game tables in a game store or the like, a game machine platform machine for renting game media such as pachinko balls used in the game table is arranged. The inter-game machine for gaming machines is equipped with a banknote discriminator so that the inserted banknotes can be identified and a corresponding amount of game media can be lent out. As a banknote discriminator, what reads the optical information of a banknote using a transmissive | pervious or reflective photosensor, and identifies the authenticity etc. of the inserted banknote based on this is known.

  In the case of using a photo sensor, if there is variation in the mounting position of the photo sensor, the bill recognition accuracy is lowered. In particular, if the circuit board on which the light emitting element and the light receiving element of the photosensor are mounted is warped and deformed, the relative position between the light emitting element and the light receiving element mounted thereon is displaced. Also, a deviation occurs in the relative position between these elements and the passing bill. Therefore, the decline in bill recognition accuracy cannot be ignored.

Moreover, in the banknote discriminator using a photosensor, if the position of the banknote which passes the detection position by a photosensor fluctuates, there exists a possibility that identification accuracy may fall. In patent document 1, the conveyance direction of the banknote which passes the detection position by a reflection type photosensor is prescribed | regulated by the conveyance roller, By this, the variation in the passage position of the banknote in a detection position is prevented. However, some banknotes are creased or wrinkled. When such a banknote is inserted, even if the conveyance direction of the banknote is defined by the conveyance roller, the relative position between the banknote and the photosensor varies due to creases, wrinkles, etc. It cannot be prevented.
JP 2005-18177 A

  An object of the present invention is to propose a paper sheet classifier that can attach a photosensor to an accurate position without being affected by warping or deformation of a circuit board.

  Another object of the present invention is to propose a paper sheet discriminator that can reliably prevent variations in the relative positions of the photo sensor and the paper sheets passing through the detection position.

In order to solve the above problems, the paper sheet identifier of the present invention is:
A transport path for transporting paper sheets;
A photo sensor for reading the optical information of the paper sheet transported along the transport path;
A circuit board on which the photosensor is mounted;
A sensor holding member holding the photosensor in a fixed position;
And a connecting member electrically connected in a state of being relatively movable between the photosensor and the circuit board.

  In the present invention, the photosensor is held by the sensor holding member without directly mounting the photosensor on the circuit board. Further, the photosensor and the circuit board are electrically connected in a state where relative movement is possible. Therefore, even if the circuit board is warped and deformed, the photo sensor is not displaced.

  When the photosensor is a transmission type photosensor provided with a light emitting element and a light receiving element that are disposed opposite to each other across the conveyance path, the circuit board is disposed on the light emitting element side across the conveyance path. The light emitting side circuit board and the light receiving side circuit board arranged on the light receiving element side are arranged. Further, a light emitting element holding member holding the light emitting element and a light receiving element holding member holding the light receiving element are arranged as the sensor holding member. Further, as the connecting member, a light emitting side connecting member that electrically connects the light emitting element and the light emitting side circuit board, and a light receiving side connection that electrically connects the light receiving element and the light receiving side circuit board. Members are arranged.

Next, the paper sheet identifier of the present invention is
A transport path for transporting paper sheets;
A photo sensor for reading the optical information of the paper sheet transported along the transport path;
A sensor cover that covers the light emitting surface and / or the light receiving surface of the photosensor and is movable in a direction orthogonal to the conveyance path;
A guide plate disposed at a fixed position facing the sensor cover across the transport path;
A biasing member that biases the sensor cover to the guide plate;
The paper sheet is conveyed through the paper sheet while being pressed against the guide plate by the sensor cover.

  In the present invention, the detection position by the photo sensor, that is, the paper sheet passing between the sensor cover and the guide plate is conveyed while being pressed against the sensor cover by the guide plate. Therefore, variations in the paper sheet conveyance position are prevented. Further, since the paper sheet is conveyed while being pressed by the guide plate, the paper sheet is conveyed in a state where the folds, wrinkles and the like attached thereto are removed. Therefore, variation in the relative position between the photo sensor and the passing paper sheet is prevented. In addition, the surface of the sensor cover and the guide plate is cleaned with paper sheets, so that an effect of removing foreign matters and the like can be obtained.

  In the case where the photosensor is a transmissive photosensor provided with a light emitting element and a light receiving element arranged to face each other across the conveyance path, the sensor cover is a light emitting side sensor cover that covers the light emitting surface of the light emitting element, The guide plate may be a light receiving side sensor cover that covers the light receiving surface of the light receiving element.

  In addition, in order to smoothly pass the paper sheet between the sensor cover and the guide plate urged by the urging member, the surface of the sensor cover is a flat surface and the front and back of the paper sheet conveyance direction on the flat surface. The surface of the guide plate is formed on a flat surface that can come into surface contact with the flat surface, and on the front and back ends of the flat sheet in the sheet conveyance direction. What is necessary is just to set it as the shape provided with the taper surface made.

  In the paper sheet discriminator of the present invention, the photosensor is not directly mounted on the circuit board, but is held at a fixed position by the sensor holding plate, and the photosensor and the circuit board are electrically connected in a relatively movable state. Have taken. Therefore, even if the circuit board is warped and deformed, the photo sensor mounting position is not shifted due to the deformation. Therefore, it is possible to prevent a decrease in identification accuracy due to the positional deviation of the photosensor.

  Moreover, in the paper sheet identification machine of this invention, the paper sheet which passes the detection position of a photo sensor is conveyed in the state pressed against between the sensor cover and the guide plate. Therefore, the passage position of the paper sheet passing through the detection position is constant. Further, the paper sheet passes through the detection position in a state where the folds, the folds and the like are stretched. Therefore, variation in the relative position between the photosensor and the paper sheet at the detection position is prevented, and the identification accuracy is improved. In addition to this, there is also an effect that the surface of the sensor cover and the guide plate is cleaned by the conveyed paper sheets.

  Embodiments of a bill validator to which the present invention is applied will be described below with reference to the drawings.

[Embodiment 1]
(overall structure)
FIG. 1 is a perspective view showing a bill validator to which the present invention is applied, and FIG. 2 is a perspective view showing a state in which the opening / closing unit is opened. The bill validator 1 has a main unit 2 and an opening / closing unit 4 housed in a recess 3 formed on the surface of the main unit 2 and extending in the front-rear direction of the apparatus. The opening / closing unit 4 can be opened / closed between a closed position 4A housed in the recess 3 and a fully opened position 4B opened 180 degrees around the support shafts 5a, 5b formed on both sides of the rear end portion. Further, engaging levers 6a and 6b formed on both sides of the front end portion of the opening / closing unit 4 are inserted into engaging grooves 6c and 6d formed in the main body unit 2, whereby the opening / closing unit 4 is moved to the closed position 4A. Locked. When the step on the base side of the left and right engaging levers 6a and 6b is bent inward with a finger or the like, the engaging levers 6a and 6b can be disengaged from the engaging grooves 6c and 6d to open the opening / closing unit 4. become.

  3 is a plan view of the bill validator 1, FIG. 4 is a schematic longitudinal sectional view showing a portion cut along the line AA, and FIG. 5 is a schematic cross section showing a portion cut along the line BB. FIG. Referring to these figures as well, a bill insertion slot 7 is formed on the front surface of the main unit 2 of the bill validator 1, and the bill insertion slot 7 is formed inside the front end of the main unit 2. The bill conveyance path 10 formed between the main unit 2 and the opening / closing unit 4 is communicated via the bill insertion path 8. The rear end of the banknote transport path 10 is a banknote outlet 10a, and banknotes discharged from the banknote path 10 are stored in a banknote storage (not shown).

  In the banknote insertion path 8, a pair of left and right entrance sensors 9a and 9b are arranged to detect insertion of banknotes. Each of the inlet sensors 9a and 9b includes a detection lever 91 protruding from the lower side in the banknote insertion path 8, and when the banknote P is inserted, the detection lever 91 is pushed by the banknote P and retracts from the banknote insertion path 8. . Based on the movement of these detection levers 91, it is detected that a bill has been inserted. As the inlet sensors 9a and 9b, those provided with a photocoupler and a mechanical switch can be used.

  Three sets of transmissive photosensors 11 to 11 for detecting a light transmission pattern, which is an optical characteristic of a bill conveyed on the banknote transport path 10, are located upstream of the banknote transport path 10 following the banknote insertion path 8. 13 are arranged at equal intervals in the width direction. The light emitting elements 11 a to 13 a of these transmissive photosensors 11 to 13 are mounted on the opening / closing unit 4, and the light receiving elements 11 b to 13 b are mounted on the main unit 2. A magnetic head 14 for detecting the magnetic characteristics of the banknote P is disposed in a portion of the banknote transport path 10 downstream of these installation positions. The magnetic head 14 is mounted on the main unit 2, and a pressing roller 15 for pressing the bill P against the detection surface of the magnetic head 14 is mounted on the opening / closing unit 4.

  The transport mechanism for transporting the banknotes P along the banknote transport path 10 is a belt-pulley type, a pair of left and right drive pulleys 16a and 16b (only the pulley 16a is shown in the figure), and a pair of left and right. Driven pulleys 17a and 17b (only the pulley 17a is shown in the figure), left and right bridges between the driving pulley 16a and the driven pulley 17a, and between the driving pulley 16b and the driven pulley 17b. And a pair of conveying belts 18a and 18b (shown by a thick dashed line in FIG. 4). These parts are mounted on the main unit 2 side, the driving pulleys 16a and 16b are arranged on the downstream end side of the bill conveyance path 10, and the driven pulleys 17a and 17b are downstream of the light emitting elements 11a to 13a. Is arranged. In this example, a pair of left and right guide pulleys 19a and 19b (only the pulley 19a is shown in the figure) are disposed downstream of the driven pulleys 17a and 17b.

  The transport mechanism includes three pairs of left and right pressing rollers 20a, 20b, 21a, 21b and 22a, 22b mounted on the opening / closing unit 4 side. These are mounted on the opening / closing unit 4 so as to be slidable in the vertical direction and in a rotatable state. The driving pulleys 16a and 16b and the driven pulleys 17a and 17b are respectively mounted on the conveyor belts 18a and 18b. The guide pulleys 19a and 19b are pressed by a spring force.

  Further, the transport mechanism includes a drive motor 23 built in a portion of the main body unit 2 on the side of the recess 3. The rotational force of the drive motor 23 is transmitted to the drive pulleys 16a and 16b through a reduction gear train 24 having a worm gear and a helical gear.

  If it detects that the banknote was inserted from the banknote insertion port 7 with the entrance sensors 9a and 9b, a conveyance mechanism will be driven and the inserted banknote P will be sent into the banknote conveyance path 10 from the banknote insertion path 8. FIG. The bill P transported along the bill transport path 10 has its light transmission pattern read by three sets of transmission type photosensors 11 to 13, and its magnetic pattern is read by the magnetic head 14. Based on the read banknote information, the type and authenticity of the banknote P are identified. When it is identified that the banknote P is acceptable, the banknote is fed from the banknote outlet 10a at the downstream end of the banknote transport path 10 to a banknote storage (not shown). When it is identified as an unacceptable banknote or a fake bill, such a banknote is reversely fed and discharged from the banknote insertion slot 7.

  When the banknotes P are jammed in the banknote transport path 10, the opening / closing unit 4 is opened and the banknote transport path 10 is opened, for example, when a maintenance check operation of the banknote transport mechanism is performed. That is, the pressing rollers 20a, 20b, 22a, and 22b pressed against the driving pulleys 16a and 16b and the guide pulleys 19a and 19b from above the pair of left and right conveying belts 18a and 18b on the main body unit 2 side are conveyed belt 18a, It leaves | separates from 18b and the banknote conveyance path 10 prescribed | regulated between these will be in an open state.

(Photo sensor mounting structure)
FIG. 6 is a partially enlarged cross-sectional view showing an enlarged portion surrounded by an alternate long and short dash line C in FIG. The mounting structure of the photosensors 11 to 13 will be described with reference to FIGS.

  First, the opening / closing unit 4 includes a rectangular unit case 41 that opens upward, and a plate-like case cover 42 that seals the opening of the unit case 41. A substrate support portion 44 is formed on the bottom plate portion 43 of the unit case 41, and a substrate retainer 45 is formed on a portion of the case cover 42 facing the substrate support portion 44. A circuit board 46 (light emission side circuit board) is held between the board support 44 and the board holder 45. The light emitting elements 11 a to 13 a are directly mounted on the circuit board 46. On the light emitting surfaces of these light emitting elements 11a to 13a, circular openings 43a to 43c opened in the bottom plate portion 43 of the unit case 41 are opposed to each other, and light emitted from the light emitting elements 11a to 13a is sent to each circular opening 43a. Injected from ~ 43c.

  As shown in FIGS. 4 to 6, the main unit 2 includes a unit case 31 and a chassis 32 that seals the lower opening, and a circuit board 33 (light-receiving-side circuit board) is provided in these units. ) Are arranged substantially parallel to the chassis 32. The unit case 31 includes a surface plate portion 34 in which the recess 3 is formed, and circuit boards are formed on the lower end surfaces of the left and right inner side plate portions 35 and 36 extending vertically downward from the back surface of the surface plate portion 34. 33 is attached. The light receiving elements 11b to 13b held by the light receiving element holding member 50 are disposed on the back side of the portion of the front plate portion 34 that faces the light emitting elements 11a to 13a.

  As shown in FIG. 6, the light receiving element holding member 50 includes a base plate portion 51 extending in the width direction of the bill validator 1, three cylindrical portions 52 to 54 erected vertically from the base plate portion 51, Mounting flanges 55 and 56 that are bent upward from both ends of the base plate portion 51 are provided. The left and right mounting flanges 55 and 56 are fixed to the back surface of the front plate portion 34 of the unit case 31 by fixing screws 57 and 58.

  Mounting seats 52a to 54a for the light receiving elements 11b to 13b are respectively formed at the tip portions of the three cylindrical portions 52 to 54, and the light receiving elements 11b to 13b are bonded and fixed upward thereto. The three lead terminals 11c to 13c drawn from the respective light receiving elements 11b to 13b are drawn to the position of the circuit board 33 through the through holes formed in the mounting seats 52a to 54a, respectively. The lower ends of these lead terminals 11c to 13c are respectively connected to a plurality of flexible lead wires 33a extending along the circuit board surface, and the tips of the lead wires 33a are connected to the wiring pattern on the circuit board surface by soldering or the like. (Not shown).

  Here, the light receiving surfaces of the light receiving elements 11 b to 13 b held by the light receiving element holding member 50 are covered with the sensor cover 60. The sensor cover 60 includes frustoconical cover main body portions 61 to 63 that cover the respective light receiving elements 11b to 13b, and connecting plate portions 64 and 65 that connect these cover main body portions 61 to 63. . In this example, as shown in FIG. 4, a sensor cover 60 is integrally formed with an attachment member 66 for attaching components on the main unit 2 side constituting the banknote transport mechanism. The attachment member 66 is fixed to the back surface of the front plate portion 34 of the main unit 2 by a plurality of fixing screws 67.

  As shown in FIG. 6, circular opening portions 34 a to 34 c are formed in the surface plate portion 34 of the main unit 2 at portions facing the circular opening portions 43 a to 43 c on the opening / closing unit side. The circular front end surfaces 61a to 63a of the cover main body portions 61 to 63 are attached to the circular openings 34a to 34c from the back side, and the circular front end surfaces 61a to 63a are on the surface side of the circular openings 34a to 34c. It is located on the same plane as the end face.

  Thus, in the bill validator 1 of this example, the light receiving elements 11b to 13b are not directly mounted on the circuit board 33 having a large size arranged on the light receiving elements 11b to 13b side, and the main unit 2 The light receiving element holding member 50 fixed to the unit case 31 is fixed and positioned. Further, the lower ends of the lead terminals 11c to 13c drawn out from the light receiving elements 11b to 13b are electrically connected to the circuit board 33 through flexible lead wires 33a.

  The light receiving elements 11b to 13b are not directly mounted on the circuit board 33, and the light receiving elements 11b to 13b and the circuit board 33 are electrically connected in a relatively movable state, so that the circuit board 33 is warped. Even if the deformation occurs, the light receiving elements 11b to 13b do not shift in position due to the deformation. Even if the circuit board 33 is deformed, the deformation is absorbed by the flexible lead wire 33a, so that unnecessary stress due to the deformation does not act on the light receiving elements 11b to 13b.

  In this example, the circuit board 46 on which the light emitting elements 11a to 13a are mounted has a small size. In practice, the positional deviation of the light emitting elements 11a to 13a due to the warpage and deformation can be ignored. Is. However, like the light receiving elements 11b to 13b, the light emitting elements 11a to 13a are also held by the holding member, and the light emitting elements 11a to 13a and the circuit board 46 may be electrically connected in a relatively movable state. Is possible.

  The electrical connection between the light emitting element or the light receiving element and the circuit board can be formed using a flexible lead wire, a flexible board, or a connector.

  This example relates to a bill validator using a transmissive photosensor. The present invention can be similarly applied to the case where a reflective photosensor is used. In the case of using the reflection type photosensor, the light emitting element and the light receiving element are arranged on one side of the conveyance path, so that they are held by the element holding member and are relatively movable between them and the circuit board. What is necessary is just to connect electrically.

[Embodiment 2]
FIG. 7 is a cross-sectional view of a photo sensor arrangement portion in the bill validator according to the second embodiment. FIG. 8 is a partial cross-sectional view showing a portion cut along the line D-D in FIG. 7, (a) is an explanatory view showing a state where banknotes are not passing, and (b) is a state when banknotes are passing. It is explanatory drawing shown, (c) is the explanatory drawing. Since the basic structure of the banknote discriminator 100 of this example is the same as that of the banknote discriminator 1 shown in FIGS. 1-6, the same code | symbol is attached | subjected to a corresponding part and those description shall be abbreviate | omitted.

  In the bill validator 100 of this example, the bill P is sandwiched between the light-emitting element-side sliding sensor cover 70 and the light-receiving-element-side fixed sensor cover 60 at the detection positions of the transmission type photosensors 11 to 13. It is comprised so that it may convey.

  That is, the light emitting surfaces of the light emitting elements 11a to 13a are covered with the slide type sensor cover 70. The slide type sensor cover 70 includes cylindrical cover main body portions 71 to 73 whose lower sides are sealed, and these cover main bodies. Connecting plate portions 74 and 75 connecting the portions 71 to 73 are provided. Each cover main body portion 71 to 73 is held by the unit case 41 in a state of being movable in the vertical direction along the inner peripheral surface of the circular openings 43 a to 43 c opened in the bottom plate portion 43 of the unit case 41 of the opening / closing unit 4. Has been. In addition, coil springs 76 and 77 are mounted between the connecting plate portions 74 and 75 and the circuit board 46, and the sliding sensor cover 70 is attached in a direction away from the light emitting surfaces of the light emitting elements 11a to 13a as a whole. It is energized.

  The surface plate portion 34 on the side of the main body unit 2 facing the circular openings 43a to 43c is formed with circular openings 34a to 34c. Here, the cover main body of the fixed sensor cover 60 on the light receiving element side is formed. Circular front end surfaces 61a to 63a of the portions 61 to 63 are exposed. Therefore, the front end surfaces 71a to 73a of the cover main body portions 71 to 73 of the slide type sensor cover 70 are pressed against the circular front end surfaces 61a to 63a on the sensor cover 60 side by the spring force.

  In this example, as shown in FIG.8 (c), as for the flat circular front end surfaces 71a-73a of the slide type sensor cover 70, the outer peripheral edge part is made into the taper surfaces 71b-73b. Similarly, the flat circular front end surfaces 61a to 63a of the fixed-side sensor cover 60 also have outer peripheral edge portions that are tapered surfaces 61b to 63b.

  In the bill validator 100 of this example, before the bill P is inserted, the tip surfaces 71a to 73a of the sliding sensor cover 70 are circular tip surfaces of the fixed sensor cover 60 as shown in FIG. It is pressed by 61a-63a with a spring force.

  When the banknote P is inserted from the banknote insertion slot 7, guided inside along the banknote insertion path 8, and transported along the banknote transport path 10, the front end of the banknote P becomes the front end surface 71 a of the slide sensor cover 70. 73a and the circular front end surfaces 61a to 63a of the fixed sensor cover 60 abut from the lateral direction. The spring force of the coil spring urging the slide type sensor cover 70 is adjusted to a strength that allows the slide type sensor cover 70 to be pushed up by the bill P being conveyed. Moreover, the outer peripheral edge part of both circular front end surfaces 61a-63a and front end surfaces 71a-73a is made into the taper surfaces 61b-63b, 71b-73b, and the banknote P is introduce | transduced smoothly between these. ing.

  Therefore, the banknote P pushes up the sliding sensor cover 70 and is conveyed between the sensor covers 70 and 60. The portion of the bill P passing between the sensor covers 70 and 60 is conveyed in a state of being sandwiched between the flat circular front end surfaces 61a to 63a and the front end surfaces 71a to 73a by the spring force. Therefore, the passage position of the banknote P is defined by the circular front end surfaces 61a to 63a of the sensor cover 60 on the fixed side. Moreover, when the banknote P has a crease | fold, a wrinkle, etc., it passes in the state extended flatly with the spring force.

  As a result, the distance from the light emitting elements 11a to 13a to the banknote P and the distance from the banknote P to the light receiving elements 11b to 13b are kept constant. Therefore, the identification accuracy by the transmissive photosensors 11 to 13 can be increased. Moreover, since the circular front end surfaces 61a to 63a and the front end surfaces 71a to 73a of both sensor covers are cleaned by the bills P, an effect of removing foreign matters and the like is also obtained.

  In this example, the sensor cover on the light emitting element side is a slide type, and the sensor cover on the light receiving element side is fixed. On the contrary, the sensor cover on the light emitting element side can be fixed and the sensor cover on the light receiving element side can be slid.

  In addition, this example relates to a bill validator using a transmissive photosensor. The present invention can be similarly applied to the case where a reflective photosensor is used. When a reflection type photosensor is used, the light emitting element and the light receiving element are arranged on the same side of the conveyance path. For example, the fixed side sensor cover of the light emitting element and the light receiving element is arranged on one side of the conveyance path. A slide type guide plate may be disposed opposite to the other side, and the guide plate may be pressed against the sensor cover side by a spring force.

(Other embodiments)
Each of the above examples relates to a bill validator, but the present invention can be used to identify paper sheets other than bills such as tickets and coupons.

It is a perspective view of the banknote identification machine which concerns on Embodiment 1 of this invention. It is a perspective view of the bill discriminating machine in the state where the opening / closing unit is opened. It is a top view of a bill identification machine. It is a schematic longitudinal cross-sectional view of the banknote identification machine which shows the part cut | disconnected by the AA line of FIG. It is a schematic cross-sectional view of the banknote identification machine which shows the part cut | disconnected by the BB line of FIG. FIG. 6 is an enlarged partial cross-sectional view of a portion surrounded by an alternate long and short dash line C in FIG. 5. It is a schematic cross-sectional view which shows the photo sensor arrangement | positioning part in the banknote identification machine which concerns on Embodiment 2 of this invention. It is a fragmentary sectional view which shows the part cut | disconnected by the DD line | wire of FIG. 7, (a) is explanatory drawing which shows the state which the banknote has not passed, (b) is explanatory drawing which shows the state at the time of banknote passage (C) is a partial explanatory view thereof.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Banknote identification machine 2 Main body unit 3 Recessed part 4 Opening / closing unit 4A Closed position 4B Fully open position 5a, 5b Support shaft 6a, 6b Engagement lever 6c, 6d Engagement groove 7 Bill insertion slot 8 Bill insertion path 9a, 9b Inlet sensor 91 detection Lever 10 Bill transport path 10a Bill discharge port 11-13 Transmission type photosensors 11a-13a Light emitting element 11b-13b Light receiving element 11c-13c Lead terminal 14 Magnetic head 15 Press roller 16a, 16b Drive pulley 17a, 17b Drive pulley 18a, 18b Conveyor belts 19a, 19b Guide pulleys 20a, 20b, 21a, 21b, 22a, 22b Pressure roller 23 Drive motor 24 Reduction gear train 31 Unit case 32 Chassis 33 Circuit board 33a Lead wire 34 Surface plate portions 34a to 34c Circular opening 35 36 Side plate part 41 Unit 42 Case cover 43 Bottom plate portions 43a to 43c Circular opening 44 Substrate support portion 45 Substrate retainer 46 Circuit board 50 Light receiving element holding member 51 Base plate portions 52 to 54 Cylindrical portions 52a to 54a Mounting seats 55 and 56 Mounting flange 57, 58 fixing screw 60 sensor cover 61 cover main body portions 61a to 63a circular tip surfaces 61b to 63b taper surfaces 64, 65 connecting plate portion 66 mounting member 67 fixing screw 70 sliding sensor covers 71 to 73 cover main body portions 71a to 73a tip surface 71b -73b Tapered surface 74, 75 Connecting plate part 76, 77 Coil spring P Bill

Claims (8)

A transport path for transporting paper sheets;
A photo sensor for reading the optical information of the paper sheet transported along the transport path;
A circuit board on which the photosensor is mounted;
A sensor holding member holding the photosensor in a fixed position;
A paper sheet classifier having a connection member electrically connected in a state of being relatively movable between the photosensor and the circuit board. In claim 1,
The photo sensor is a transmissive photo sensor that includes a light emitting element and a light receiving element that are disposed opposite to each other across the conveyance path.
The circuit board comprises a light emitting side circuit board disposed on the light emitting element side across the transport path, and a light receiving side circuit board disposed on the light receiving element side,
The sensor holding member includes a light emitting element holding member holding the light emitting element and a light receiving element holding member holding the light receiving element,
As the connecting member, a light emitting side connecting member that electrically connects the light emitting element and the light emitting side circuit board, and a light receiving side connecting member that electrically connects the light receiving element and the light receiving side circuit board; A paper sheet discriminator characterized by comprising: In claim 1,
A sensor cover that covers the light emitting surface and / or the light receiving surface of the photosensor and is movable in a direction perpendicular to the transport path;
A guide plate disposed at a fixed position facing the sensor cover across the transport path;
A biasing member that biases the sensor cover to the guide plate;
The paper sheet identifier is conveyed through the paper sheet while being pressed against the guide plate by the sensor cover. In claim 3,
The photo sensor is a transmissive photo sensor that includes a light emitting element and a light receiving element that are disposed opposite to each other across the conveyance path.
The sensor cover is a light emitting side sensor cover that covers a light emitting surface of the light emitting element,
The paper sheet identifier according to claim 1, wherein the guide plate is a light receiving side sensor cover that covers a light receiving surface of the light receiving element. In claim 4,
The surface of the sensor cover includes a flat surface and tapered surfaces formed at the front and rear ends of the flat surface in the paper sheet conveyance direction,
The surface of the guide plate includes a flat surface that can come into surface contact with the flat surface, and a tapered surface formed at the front and rear ends of the flat surface in the paper sheet conveyance direction. Classifier. A transport path for transporting paper sheets;
A photo sensor for reading the optical information of the paper sheet transported along the transport path;
A sensor cover that covers the light emitting surface and / or the light receiving surface of the photosensor and is movable in a direction orthogonal to the conveyance path;
A guide plate disposed at a fixed position facing the sensor cover across the transport path;
A biasing member that biases the sensor cover to the guide plate;
The paper sheet identifier is conveyed through the paper sheet while being pressed against the guide plate by the sensor cover. In claim 6,
The photo sensor is a transmissive photo sensor that includes a light emitting element and a light receiving element that are disposed opposite to each other across the conveyance path.
The sensor cover is a light emitting side sensor cover that covers a light emitting surface of the light emitting element,
The paper sheet identifier according to claim 1, wherein the guide plate is a light receiving side sensor cover that covers a light receiving surface of the light receiving element. In claim 7,
The surface of the sensor cover includes a flat surface and tapered surfaces formed at the front and rear ends of the flat surface in the paper sheet conveyance direction,
The surface of the guide plate includes a flat surface that can come into surface contact with the flat surface, and a tapered surface formed at the front and rear ends of the flat surface in the paper sheet conveyance direction. Classifier.

Images