JP2009155011A - Sheet ejection mechanism of dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet ejection mechanism of a dispenser for preventing a PTP (press through package) tablet sheet from being ejected from a tablet cassette in the case that the PTP tablet sheet is loaded in the tablet cassette with its label toward a machine front direction by mistake. <P>SOLUTION: In this sheet ejection mechanism, the tablet cassette 500 is provided with a push out member 546 for contacting with a pocket at a sheet rear end side of a lowest PTP tablet sheet 900 and pushing out the lowest PTP tablet sheet 900 from the tablet cassette 500 toward a chucking unit by a distance longer than a second distance from the sheet rear end to the pocket at the rear end side and shorter than the first distance from the sheet tip end to a pocket at the tip end side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet take-out mechanism of a dispensing device, and in particular, a mechanism for taking out a tablet sheet from a tablet cassette of a dispensing device that automatically dispenses a package-type tablet called a PTP (press-through package) tablet sheet into a tablet cassette. It is suitable for.

  Traditionally, pharmacists perform dispensing work in pharmacies such as hospitals according to doctors' prescriptions, but in general hospitals where medical fields are wide, there are many types of tablets that can be taken out at all times, and storage locations are limited. Not only was it necessary, but the work of dispensing based on prescriptions was very mentally and physically burdensome.

  Therefore, a dispensing device has been developed that automatically dispenses a predetermined number of predetermined tablets including a fraction of a PTP tablet sheet based on a preset program (see, for example, Patent Documents 1 and 2). The PTP tablet sheet is a packaging form in which the tablet is taken out by breaking the bottom aluminum sheet part by pressing the tablet side. Generally, 10 or more tablets are made into one sheet. Supplied.

  Here, the tablet cassette in which a plurality of PTP tablet sheets are placed is housed in a cassette shelf, and the claw portion of the chucking device mounted on the head device is directly in the groove formed on the front surface of the tablet cassette. Intrusion and relative positioning are performed, and the PTP tablet sheet at the lowest position in the tablet cassette is chucked and taken out to the outside.

In this tablet cassette, when pressed by the pusher of the chucking device, the PTP tablet sheet positioned at the lowest stage in the take-out portion is sequentially sent out from the opening portion, so-called sheet cueing is performed. .
JP-A-4-269960 Japanese Utility Model Publication No. 5-052233

  FIG. 10 is a view showing the structure of the PTP tablet sheet 900, where (a) is a plan view and (b) is a side view. As shown in FIGS. 9A and 9B, the PTP tablet sheet 900 has a sheet body surface 910 made of an aluminum foil on a transparent synthetic resin sheet body surface 910 in which a predetermined number of pockets 920 containing chemicals are placed. 915 is covered and integrated. The end portion is usually provided with an ear portion 930 for chucking with a chucking device. Therefore, the distance L1 from the sheet leading edge 910a to the leading pocket 920 is longer than the distance L2 from the sheet trailing edge 910b to the trailing pocket 920 by the size of the ear 930. .

  Normally, when the PTP tablet sheet 900 is filled into the tablet cassette 500, the ear 930 is filled toward the chucking device, but the ear 930 is mistakenly placed on the front of the machine opposite to the chucking device. May be filled toward. In the above-described prior art, even in such a case, when the lowermost PTP tablet sheet 900 is taken out from the tablet cassette 500, the lowermost PTP tablet sheet 900 is pushed out, and there is no problem from the tablet cassette. The sheet 900 can be taken out.

  However, when the PTP tablet sheet 900 taken out from the tablet cassette 500 is cut with a cutting device, the cutting position is shifted by the dimension of the ear 930. For this reason, in the worst case, there is a possibility that the pocket is cut and the medicine is wasted.

  The present invention has been made in view of such circumstances, and when the PTP tablet sheet is mistakenly filled into the tablet cassette and the ear portion is mistakenly directed toward the front of the machine, the PTP tablet sheet cannot be removed from the tablet cassette. An object of the present invention is to provide a sheet take-out mechanism for a dispensing device.

  The present invention relates to a tablet with ears which is loaded in a tablet cassette and has a first distance from the front end of the sheet to the front end side pocket being longer than a second distance from the rear end of the sheet to the rear end side pocket. A sheet take-out mechanism of a dispensing device configured to chuck sheets one by one in order from the bottom by a chucking unit and take them out of the tablet cassette, wherein the tablet cassette is the bottom tablet The chucking unit is in contact with a pocket on the sheet rear end side of the sheet so that the lowermost tablet sheet is extended from the tablet cassette by a distance longer than the second distance and shorter than the first distance. It has the extrusion member extruded toward the direction.

  According to the present invention, the tablet cassette comes into contact with a pocket on the sheet rear end side of the lowermost tablet sheet, and the lowermost tablet sheet is transferred from the tablet cassette to the rear end of the sheet. Since it has an extrusion member that pushes toward the chucking unit by a distance that is longer than the second distance to the pocket on the end side and shorter than the first distance from the front end of the sheet to the pocket on the front end side. When the PTP tablet sheet is filled into the tablet cassette and the ears are directed toward the chucking unit, the pushing member moves longer than the second distance from the sheet rear end to the rear end side pocket. It abuts on the rear end side pocket. Then, as a result of pushing the pocket forward, it is possible to perform sheet cueing. Thereby, the PTP tablet sheet that has been cued by the chucking unit can be chucked and taken out from the tablet cassette.

  On the other hand, if the PTP tablet sheet is filled into the tablet cassette and the ears are mistakenly directed to the front of the machine, the pusher moves only a shorter distance than the first distance from the sheet tip to the pocket on the tip side. Does not contact the pocket on the front end of the sheet. As a result, it becomes impossible to push the pocket forward, and as a result, it is not possible to cue the seat. As a result, the PTP tablet sheet cannot be chucked and removed from the tablet cassette by the chucking unit.

  Therefore, unlike the conventional case, when the ear portion is mistakenly filled toward the front of the machine, the PTP tablet sheet is not taken out from the tablet cassette and cut without being noticed at all. As a result, the cutting position is shifted by the dimension of the ear portion of the PTP tablet sheet, and there is no possibility of cutting the pocket, and the medicine is not wasted.

  According to a second aspect of the present invention, each tablet sheet is stacked in the tablet cassette with the pockets facing downward, and the push-out member is configured to abut against the downward pockets. preferable.

  According to the invention of claim 2, each tablet sheet is loaded in the tablet cassette so that the pockets face downward, and the pushing member is configured to abut against the downward pockets. As a result of the positional relationship in which the pocket is easily pushed out by the pushing member, the pushing member can have a relatively simple configuration.

  According to a third aspect of the present invention, each tablet sheet has a plurality of pockets arranged in the sheet width direction, and the push-out member includes a contact portion having a width corresponding to at least one row of the pockets. Is preferred.

  According to a third aspect of the present invention, each tablet sheet has a plurality of pockets arranged in the sheet width direction, and the push-out member includes a contact portion having a width corresponding to at least one row of the pockets. Therefore, the pressing force of the pushing member is distributed to the plurality of pockets via the contact portion. This reduces the risk of crushing individual pockets.

  According to a fourth aspect of the present invention, the detection means for detecting the failure to take out the tablet sheet from the tablet cassette by the chucking unit, and the detection of the failure to take out the tablet sheet, It is preferable to provide notifying means for notifying an abnormality in the orientation of the stacked tablet sheets in the tablet cassette.

  According to the invention of claim 4, when the detection means detects that the tablet unit has failed to take out the tablet sheet from the tablet cassette, and when it has been detected that the tablet sheet has failed to be taken out, Abnormality of the orientation of the stacked tablet sheets in the tablet cassette is notified by the notification means, so it is necessary to immediately confirm when the PTP tablet sheet is accidentally filled into the tablet cassette and the label is erroneously directed to the front of the machine. Can respond.

  According to the present invention, the tablet cassette is in contact with a pocket on the sheet rear end side of the lowermost tablet sheet, and the lowermost tablet sheet is transferred from the tablet cassette to the rear end of the sheet. Since it has an extrusion member that pushes toward the chucking unit by a distance that is longer than the second distance to the pocket on the end side and shorter than the first distance from the front end of the sheet to the pocket on the front end side. When the PTP tablet sheet is filled into the tablet cassette and the ears are directed toward the chucking unit, the pushing member moves longer than the second distance from the sheet rear end to the rear end side pocket. It abuts on the rear end side pocket. Then, as a result of pushing the pocket forward, it is possible to perform sheet cueing. Thereby, the PTP tablet sheet that has been cued by the chucking unit can be chucked and taken out from the tablet cassette.

  On the other hand, if the PTP tablet sheet is filled into the tablet cassette and the ears are mistakenly directed to the front of the machine, the pusher moves only a shorter distance than the first distance from the sheet tip to the pocket on the tip side. Does not contact the pocket on the front end of the sheet. As a result, it becomes impossible to push the pocket forward, and as a result, it is not possible to cue the seat. As a result, the PTP tablet sheet cannot be chucked and removed from the tablet cassette by the chucking unit.

  Therefore, unlike the conventional case, when the ear portion is mistakenly filled toward the front of the machine, the PTP tablet sheet is not taken out from the tablet cassette and cut without being noticed at all. As a result, the cutting position is shifted by the dimension of the ear portion of the PTP tablet sheet, and there is no possibility of cutting the pocket, and the medicine is not wasted.

  FIG. 1 is an exploded perspective view showing main components of a dispensing device 1 according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the dispensing device 1 includes two Y carriages 200 and 200 provided on the left and right sides of the box-shaped device main body 100, and X carriages supported by the Y carriages 200 and 200, respectively. 300, 300, two chucking units 400, 400 supported by these X carriages 300, 300, and two on the front left and right sides of the apparatus main body 100, and a plurality of tablet cassettes 500, 500,. Cassette shelves 600, 600 that can be mounted side by side in the left-right direction, cutting units 700, 700 disposed below these cassette shelves 600, 600, and both cassette shelves below the left and right cassette shelves 600, 600. 600 and 600, and a single transfer conveyor unit 800 disposed between the left and right ends. .

  Hereinafter, representative components of a plurality of components will be described. The Y carriage 200 includes a servo motor 210, a ball screw 220 in the vertical axis direction (Y direction in FIG. 1) driven by the servo motor 210, vertical guides 230 and 230 respectively disposed on the left and right of the ball screw 220, The X carriage 300 includes a carriage main body 310 that moves up and down together with the nut 240 by the rotation of the ball screw 220 while being guided by the vertical guides 230 and 230, and the carriage main body. On 310, a servo motor 410, a ball screw 415 in the horizontal axis direction (X direction in FIG. 1) driven by the servo motor 410, and a nut (not shown) are provided.

  2 is a perspective view of the tablet cassette 500 as viewed from the side facing the chucking unit 400, FIG. 3 is a perspective view showing a state in which the PTP tablet sheets 900 are stacked on the tablet cassette 500 of FIG. 2, and FIG. It is a perspective view which shows the specific structure of the main body lower part 540. Hereinafter, the side facing the chucking unit 400 of the tablet cassette 500 is referred to as the front, and the opposite side is referred to as the rear.

  The tablet cassette 500 in the first embodiment is formed to be slightly wider than various PTP tablet sheets (corresponding to tablet sheets) 900 to be stacked. Accordingly, a plurality of tablet cassettes 500 having different width dimensions are prepared according to the widths of various PTP tablet sheets 900. As shown in FIGS. 2 and 3, the specific configuration thereof is a long cassette base 510 having a concave cross section, and a cassette body 520 that is detachably fitted from the longitudinal direction of the cassette base 510. It is made up of.

  As shown in FIGS. 5 to 8, which will be described later, protrusions 512 and 512 that are L-shaped in side view are formed in the front and rear (and left and right), respectively, on the back side of the bottom plate 511 of the cassette base 510. The end is bent upward to form an elastic tongue piece 513. A support member 514 having a reverse concave shape in cross section is formed on the surface side of the rear portion of the bottom plate 511, and two left and right tongue pieces 515 and 515 that are cantilevered by the support member 514 are respectively formed so as to descend toward the front portion. Has been.

  The support member 514 and the tongue pieces 515 and 515 are both disposed in the left and right side walls 516 and 517 of the cassette base 510 as shown in FIGS. 2 and 3. A fraction of the PTP tablet sheet 900, 900,... Is chucked. However, the number of the strips 515 is not limited to two but may be one or three or more.

  The cassette main body 520 further includes a main body upper part 530 on which a plurality of PTP tablet sheets 900, 900,... Can be stacked, and a main body lower part 540 attached integrally to the lower part of the main body upper part 530. .

  The main body lower part 540 is disposed so as to be buried in the left and right side walls 516 and 517 of the cassette base 510 in an assembled state with the cassette base 510 of the cassette main body 520. As shown, a link mechanism 550 for sequentially taking out the PTP tablet sheets 900 stacked at the bottom of the upper portion 530 of the main body is provided on a bottom plate 541 having a long shape with a concave cross section.

  As shown in FIG. 4, the link mechanism 550 is located at the rear portion of the bottom plate 541 of the main body lower portion 540, and has a rotating member 542 that is rotatably supported at a substantially central portion in the width direction, and a rear end side of the link mechanism 550. When the pressing member 543 on the front end side is rotatably connected to one end side of the rotating member 542 and receives a pressing force from the chuck 430, the first member can move backward against the elastic biasing force of the tension spring 544a. The slide member 544 is arranged in parallel with the first slide member 544, the rear end side is rotatably connected to the other end side of the rotation member 542, and is opposite to the first slide member 544. A movable second slide member 545, and an extruding member for extruding the bottommost PTP tablet sheet 900 on the second slide member 545. 46 is adjustable in position vertically in the longitudinal direction.

  3, the PTP tablet sheets 900, 900,... Are stacked in the tablet cassette 500 with the pockets 920, 920,. In addition, it is configured to abut on the downward pocket 920. Each PTP tablet sheet 900, 900,... Has a plurality of pockets 920, 920,... Arranged in the sheet width direction, and the pushing member 546 has at least the pockets 920, 920,. .. A contact portion 546a having a width corresponding to one row is provided. As a result, the pressing force of the pushing member 546 is distributed to the plurality of pockets 920, 920,..., Thereby reducing the possibility of crushing the individual pockets 920.

  2 and 3, the main body upper part 530 is embedded in the left and right side walls 516 and 517 of the cassette base 510 from the rear part to the intermediate part in an assembled state with the cassette base 510 of the cassette main body 520. The side wall 516 and 517 of the cassette base 510 are projected from the middle part to the front part so as to protrude upward from the left and right side walls. The projected front wall 531 is bent inward at the front end. Thus, they are arranged to face each other with a predetermined gap. The upper ends of the front wall 531 are connected to each other by a reinforcing plate 532.

  A bar-like member 533 is erected on the rear part of the upper part 530 of the main body, and is laid down when the PTP tablet sheets 900, 900,... Are filled, so that the PTP tablet sheet 900, The PTP tablet sheets 900, 900,... Are aligned by raising the rod-like member 533 while sandwiching 900,. The state at this time is as shown in FIG.

  As shown in FIG. 1, the chucking unit 400 includes a Z carriage 411 extending forward (Z direction in FIG. 1) from the carriage body 310, a rotary solenoid 420 disposed on the Z carriage 411, and the rotary solenoid 420. Chuck 430 driven by the horizontal axis, horizontal guides 440 and 440 respectively disposed on the left and right sides of the chuck 430, a primary bucket 450 provided at a lower portion between the horizontal guides 440 and 440, and a front portion of the primary bucket 450 A line sensor (corresponding to detection means) 460 provided and a secondary bucket 480 with a shutter 470 provided below the primary bucket 450 are provided. The Z carriage 411 is composed of a servo motor (not shown), a ball screw, and a nut.

  FIG. 5 is a side sectional view showing the tablet cassette 500 when the PTP tablet sheet 900 is filled in the correct orientation, and FIG. 6 is a side sectional view showing a state when the PTP tablet sheet is taken out from the tablet cassette 500 of FIG. 7 is a side sectional view showing the tablet cassette 500 when the PTP tablet sheet 900 is filled in the wrong direction, and FIG. 8 is a side sectional view showing a state when the PTP tablet sheet is taken out from the tablet cassette 500 of FIG. .

  When it is not necessary to punch the fraction of the PTP tablet sheet 900, the chuck 430 of the chucking unit 400 moves forward in response to an operation command from the controller 400a, which will be described later, and directly by the chuck 430. By pressing the pressing member 543 of the tablet cassette 500, the pushing member 546 in FIG. 5 is moved forward by the function of the link mechanism 550, and the pushing member 546 in FIG.

  Here, when the PTP tablet sheets 900, 900,... Are mistakenly filled in the tablet cassette 500 and the ears 930 are directed toward the front of the machine, as shown in FIGS. Since the abutting portion 546a moves only a distance shorter than the first distance from the sheet leading end 910a to the leading end side pocket 920, it does not abut on the sheet leading end side pocket 920. And as a result of being unable to push the pocket 920 forward, it is not possible to perform sheet cueing. As a result, the PTP tablet sheet 900 cannot be chucked by the chucking unit 400 and taken out from the tablet cassette 500.

  In that case, the PTP tablet sheet 900 cannot be chucked by the chuck 430 of the chucking unit 400.

  FIG. 9 is a control block diagram according to the present embodiment. As shown in FIG. 9, the controller 400a includes a CPU 400b, a RAM 400c, and a ROM 400d, and is electrically connected to a chucking unit 400, a line sensor 460, an input unit 400e, and a display unit (corresponding to notification means) 400f. Has been. The CPU 400b issues various determinations and various command signals to the elements 400, 460, 400e, 400f and the like based on the determinations. The RAM 400c temporarily stores, for example, input information from the input unit 400e, and the ROM 400d previously stores various programs for making determinations in the CPU 400b.

  Then, if the PTP tablet sheet 900 is chucked by the chucking unit 400 based on the shape information of the PTP tablet sheet 900 read by the line sensor 460 by the CPU 400b of the controller 400a, the one that has been successfully chucked However, if the PTP tablet sheet 900 is not chucked in the chucking unit 400, it is determined that the chucking has failed, and the PTP tablet from the tablet cassette 500 is determined based on the determination result. An abnormal state indicating that the orientation of the sheet 900 is wrong is displayed on the display unit 400f. Thus, the user can immediately confirm the case where the PTP tablet sheet 900 is filled in the tablet cassette 500 and the ear portion 930 is mistakenly directed toward the front of the machine, and can take necessary measures.

  On the other hand, when the PTP tablet sheet 900 is correctly filled in the tablet cassette 500 and the ears 930 are directed toward the chucking unit 400, as shown in FIGS. 5 and 6, the contact portion 546a of the pushing member 546 is the sheet. It moves longer than the second distance from the rear end to the rear end side pocket 920 and comes into contact with the pocket 920 on the rear end side of the sheet. And as a result of pushing the pocket 920 forward, sheet cueing can be performed. Thus, the PTP tablet sheet 900 that has been cueed by the chuck 430 of the chucking unit 400 can be chucked and taken out from the tablet cassette 500.

  Then, chucking by the chuck 430 is released in order to drop the extracted PTP tablet sheet 900 into the primary bucket 450. The primary bucket 450 is moved onto the secondary bucket 480 using the X carriage 300 and the Y carriage 200. Then, a bottom shutter (not shown) of the primary bucket 450 is opened, and the PTP tablet sheet 900 is dropped into the secondary bucket 480. Next, the bottom shutter 470 of the secondary bucket 480 is opened, and the PTP tablet sheet 900 is dropped onto the transport conveyor unit 800.

  The cutting unit 700 includes a vertical blade and a horizontal blade (not shown) for punching out the fraction of the PTP tablet sheet 900. Even when it is necessary to punch out the PTP tablet sheet 900, as described above, the pressing member 543 of the tablet cassette 500 is pressed by the chuck 430 of the chucking unit 400, and the pushing is performed by the function of the link mechanism 550. The member 546 is moved forward.

  By pressing the pocket 920 of the PTP tablet sheet 900 loaded on the lowermost side of the tablet cassette 500 by the contact portion 546a of the moved pushing member 546, the PTP tablet sheet 900 is cued. . The chucked PTP tablet sheet 900 is chucked by the chuck 430 and pulled forward, and this time, the pulled PTP tablet sheet 900 is transported to the cutting unit 700 while being chucked. Then, the PTP tablet sheet 900 is punched by using the vertical blade and the horizontal blade, and the PTP tablet sheet 900 corresponding to the punched fraction is dropped directly onto the transport conveyor unit 800.

  The remaining part of the PTP tablet sheet 900 that has been punched out is returned to the original tablet cassette 500 while being chucked by the chuck 430. In this case, the remaining part of the PTP tablet sheet 900 is the tongue of the cassette base 510. It is inserted and stored in the remaining storage section 515a below the pieces 515, 515 in a cueing state.

  The remaining portion of the PTP tablet sheet 900 stored in the remaining storage portion 515a is then chucked by the chuck 430 with the remaining portion of the PTP tablet sheet 900 and pulled forward, and is formed by the line sensor 460. Check. Then, when it is not necessary to punch out the remaining part of the PTP tablet sheet 900, the chucking by the chuck 430 is released in order to drop the remaining part of the PTP tablet sheet 900 into the primary bucket 450. The primary bucket 450 is moved onto the secondary bucket 480 using the X carriage 300 and the Y carriage 200. Next, a bottom shutter (not shown) of the primary bucket 450 is opened, and the PTP tablet sheet 900 is dropped into the secondary bucket 480. Next, the bottom shutter 470 of the secondary bucket 480 is opened, and the PTP tablet sheet 900 is dropped onto the transport conveyor unit 800.

  On the other hand, even when it is necessary to punch the remaining fraction of the remaining portion of the PTP tablet sheet 900, as described above, the chuck 430 can cue it from the remaining portion storage portion 515a under the tongue pieces 515 and 515 of the cassette base 510. The remaining portion of the PTP tablet sheet 900 is chucked and pulled forward. The remaining portion of the pulled PTP tablet sheet 900 is conveyed to the cutting unit 700 while being chucked. Then, the remaining part of the PTP tablet sheet 900 is punched using the vertical blade and the horizontal blade, and the PTP tablet sheet 900 corresponding to the further punched part is dropped directly onto the transport conveyor unit 800.

  On the other hand, the remaining part of the PTP tablet sheet 900 that has been subjected to further blanking is returned to the original tablet cassette 500 while being chucked by the chuck 430. In this case, the remaining part of the PTP tablet sheet 900 is also the cassette base 510. Are inserted and stored in the remaining storage portion 515a below the tongue pieces 515, 515.

  In this way, the PTP tablet sheet 900 loaded on the tablet cassette 500 is dispensed to its fraction without waste.

  The conveyor unit 800 includes a group of rollers 801 and tablet takeout buckets 802 and 802 that are moved in the front-rear and left-right directions by the group of rollers 801. Then, the PTP tablet sheet 900 dropped from the secondary bucket 480 via the shutter 470 or its remaining part is moved in the front / rear / left / right directions by a roller group 801 and dropped into one of the tablet take-out buckets 802 and 802. It is like that.

  On the other hand, the remaining portion or further remaining portion of the PTP tablet sheet 900 dropped from the cutting unit 700 is similarly moved in the front-rear and left-right directions by the roller group 801 and dropped into one of the tablet take-out buckets 802 and 802.

  In this way, the dispensed buckets 802 and 802 accommodate the dispensed PTP tablet sheet 900 or the remainder thereof.

  As described above, according to the present embodiment, the tablet cassette 500 is in contact with the pocket 920 on the sheet rear end side of the lowermost PTP tablet sheet 900, and the lowermost PTP tablet is released from the tablet cassette 900. The sheet 900 is chucked by a distance that is longer than a second distance from the rear end of the sheet to the pocket 920 on the rear end side and shorter than a first distance from the front end of the sheet to the pocket 920 on the front end side. Since the extrusion member 546 that is pushed out toward the unit 400 is provided, when the PTP tablet sheet 900 is filled in the tablet cassette 500 and the ear portion 930 is directed toward the chucking unit 400, the extrusion member 546 is moved from the rear end of the sheet. It moves longer than the second distance to the rear end side pocket 920 and comes into contact with the pocket 920 on the rear end side of the sheet. Then, as a result of pushing the pocket 920 forward, it is possible to perform sheet cueing. Thereby, the PTP tablet sheet 900 that has been cueed by the chucking unit 400 can be chucked and taken out from the tablet cassette 500.

  On the other hand, when the PTP tablet sheet 900 is mistakenly filled into the tablet cassette 500 and the ears 930 are mistakenly directed toward the front of the machine, the pushing member 546 is more than the first distance from the sheet leading end to the leading end side pocket 920. Since it moves only a short distance, it does not contact the pocket 920 on the sheet leading end side. Then, as a result that the pocket 920 cannot be pushed forward, the sheet cueing cannot be performed. As a result, the PTP tablet sheet 900 cannot be chucked by the chucking unit 400 and taken out from the tablet cassette 500.

  Therefore, unlike the conventional case, when the ear portion 930 is mistakenly filled toward the front of the machine, the PTP tablet sheet 900 is not taken out from the tablet cassette 500 and cut without being noticed at all. As a result, the cutting position is shifted by the dimension of the ear portion 930 of the PTP tablet sheet 900, and there is no possibility of cutting the pocket 920, and the medicine is not wasted.

  In the above embodiment, the two cassette shelves 600 and 600 are arranged on the left and right. However, the cassette shelves 600 and 600 may be arranged on the front and back, or one or three or more cassette shelves may be arranged. Good. In that case, it is preferable from the viewpoint of work efficiency that the number of carriages, chucking units, cutting units, and the like correspond to this.

  In the above embodiment, the PTP tablet sheets 900, 900,... Are stacked in the tablet cassette 500 so that the pockets 920 face downward, so that the pockets 920 can be easily pushed out by the pushing member 546. As a result, the pushing member 546 may have a relatively simple configuration, but the PTP tablet sheets 900, 900,... Are stacked in the tablet cassette 500 with the pockets 920 facing upward. It is good. In that case, although a slightly complicated configuration is used, a normal loading method can be used, which is convenient.

  In the above embodiment, the line sensor 460 is used as the detection unit to simplify the system. However, a dedicated sensor may be provided separately. In addition, as the notification means, abnormality display on the display unit 400f is illustrated, but other types of means such as a print output and an alarm may be provided instead of or in addition to this.

  In the above embodiment, the PTP tablet cassettes 500, 500,... Are arranged on the shelf plate 602 of the cassette shelf 600 in the width direction of the PTP tablet cassettes 500, 500,. However, the shelf plate is not limited to a stationary flat plate shape, and may be, for example, a cylindrical shape rotating around a predetermined axis. In that case, it is sufficient to move the chucking unit 400 relative to each PTP tablet cassette 500, 500,... Mounted on the rotating shelf.

It is a disassembled perspective view which shows the main components of the dispensing apparatus which concerns on one Embodiment of this invention. It is the perspective view seen from the side facing a chucking unit of a tablet cassette. It is a perspective view which shows the state which loaded the PTP tablet sheet | seat on the tablet cassette of FIG. It is a perspective view which shows the specific structure of the main body lower part of a cassette main body. It is a sectional side view which shows a tablet cassette when a PTP tablet sheet is filled in the correct direction. It is a sectional side view which shows a state when taking out a PTP tablet sheet from the tablet cassette of FIG. It is a sectional side view showing a tablet cassette when a PTP tablet sheet is filled in the wrong direction. It is a sectional side view which shows a state when taking out a PTP tablet sheet from the tablet cassette of FIG. It is a control block diagram concerning this embodiment. It is a figure which shows the structure of a PTP tablet sheet, Comprising: (a) is a top view, (b) is a side view.

Explanation of symbols

1 Dispensing device 100 Device main body 400 Chucking unit 400a Controller 400b CPU
400f display unit (corresponding to notification means)
430 Chuck 460 Line sensor (corresponding to detection means)
500 Tablet cassette 546 Extrusion member 546a Contact part 550 Link mechanism 700 Cutting unit 800 Transport conveyor unit 900 PTP tablet sheet (corresponding to tablet sheet)
910 Seat body 920 Pocket 930 Ear

Claims (4)

A tablet sheet with ears that is stacked in the tablet cassette and has a first distance from the front end of the sheet to the front pocket is longer than a second distance from the rear end of the sheet to the rear pocket. A sheet take-out mechanism of a dispensing device configured to be chucked by a chucking unit one by one from the bottom and taken out of the tablet cassette,
The tablet cassette is in contact with a pocket on the sheet rear end side of the lowermost tablet sheet, and the lowermost tablet sheet is longer than the second distance from the tablet cassette, and the first A sheet take-out mechanism for a dispensing device, comprising an extruding member that pushes out toward the chucking unit by a distance shorter than the distance. Each tablet sheet is loaded in the tablet cassette with the pockets facing downward,
2. A sheet take-out mechanism of a dispensing device according to claim 1, wherein the push-out member is configured to abut against the downward pocket. Each tablet sheet has a plurality of pockets arranged in the sheet width direction.
3. The sheet take-out mechanism of the dispensing device according to claim 1, wherein the pushing member includes a contact portion having a width corresponding to at least one row of the pockets.   Detecting means for detecting failure of taking out the tablet sheet from the tablet cassette by the chucking unit; and when detecting failure in taking out the tablet sheet, the stacked tablet sheets in the tablet cassette The sheet take-out mechanism of the dispensing device according to any one of claims 1 to 3, further comprising an informing unit that informs of an abnormal orientation.

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