# Patent

## Title
Medicine dispensing device

## Abstract

A medicine dispensing device has a device body (1), shelf members (2) arranged in the vertical directions in the device body (1), and a medicine conveyance member (3) for conveying medicines (D), received in the shelf members (2), on one by one basis from the front face side of the device body (1). A shelf member (2) has cassettes (26) in which medicines (D) are received in line, a pusher (31) for pushing the medicines in the cassettes (26) toward the front face side of the device body (10), and a constant load spring (32) for applying a constant load to the medicines (D) received in the cassettes (26) through the pusher (31). To fill the cassettes (26) with the medicines (D), the shelf member (2) can be pulled out from the front face side of the device body (1) and then positioned by pivoting the shelf member (2) so as to face obliquely downward.

## Background
FIELD OF THE INVENTION
The present invention relates to a medicine dispensing device, and more specifically to a medicine dispensing device that is capable of appropriately dispensing a medicine, such as an injection medication, stored in a resin container.
PRIOR ART
Conventionally, medicine dispensing devices have been disclosed that include a plurality of cassettes respectively storing medicines, and a dispensing conveyance mechanism that allow a medicine to be removed from a desired cassette containing a desired medicine, and conveys the cassette to a predetermined position (see Patent Publication 1).
Patent Publication 1: Japanese Unexamined Patent Publication No. 2000-24086.
The medicine dispensing device, however, has a configuration wherein cassettes are placed on shelves drawable only in the horizontal direction. As such, when the medicine in the cassette is out of stock, the shelf is drawn out in the horizontal direction, and the medicine has to be replenished into the cassette that opens only upward. In this case, a problem arises in that this filling operation becomes more difficult as the position of the shelf is higher.
In addition, in the medicine dispensing device, a portion where the medicine is filled and a portion where the medicine is conveyed by the dispensing conveyance mechanism are formed opposite to one another. For this reason, sufficient spacings have to be provided in both front and rear portions of the medicine dispensing device, therefore requiring an unavoidable increase in the device size.
SUMMARY OF THE INVENTION
Problems to be solved by the Invention
In view of the above, an object of the present invention is to provide a medicine dispensing device that enables the facilitation of medicine replenishment and a reduction in occupied spacing.
Means for Solving the Problems
As means for achieving the object, a medicine dispensing device includes a device body; in the device body, a plurality of shelf members juxtaposed in a vertical direction; and a medicine conveyance member that conveys medicines stored in the shelf members one by one from a front side of the device body, wherein the shelf members each includes a plurality of cassettes that each store medicines in an aligned state, and the each shelf member is drawn out to the front side of the device body to be rotatable so that one end portion of the shelf member is directed along in an oblique lower direction.
According to the configuration, that is, the configuration wherein the disposition position of the medicine conveyance member and the position for replenishing the medicine into the cassette are both located on the front side of the device body, the device can be formed to be compact. In addition, the shelf member drawn out from the device body can be tilted, such that even in the case of a shelf member located in an upper portion, medicines can easily be replenished into the cassette.
Each aforementioned cassette may preferably include a pusher that compresses the stored medicines toward the front side of the device body, and a constant load spring that exerts a constant load on the medicines stored in the cassette via the pusher.
The device body may preferably include a slide member that supports the shelf member to be slidable along a horizontal direction and that causes each aforementioned shelf member to be rotatable in a state of the shelf member drawn out from the device body, and a guide portion that guides the shelf member when the shelf member is rotated.
The configuration may be such that the shelf member includes a guide roller; and the guide portion of the device body is formed to include a first guide surface whereon the guide roller rolls to thereby guide the shelf member slidably along in a horizontal state, and an arcuate second guide surface whereon the guide roller rolls to thereby guide the shelf member to be in a tilted state when the shelf member is rotated in the state of the shelf member drawn out from device body. This configuration is preferable in that although the configuration is simple, the draw-out operation and rotational operation of the shelf member can be smoothly performed.
Preferably, any one of the guide portion and the shelf member of the device body includes a lock member that maintain the shelf member in the tilted state in the state of the shelf member drawn out from the device body and rotated.
Effects of the Invention
Thus, according to the present invention, since the disposition position of the medicine conveyance member and the position for replenishing the medicine into the cassette are both located on the front side of the device body, the configuration can be formed to be very compact. In addition, the shelf member in the drawn-out state can be tilted, such that even in the case of a shelf member located in an upper portion, medicines can easily be replenished into the cassette.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front elevation view of a medicine dispensing device in accordance with the present embodiment;
FIG. 2 is a side view of FIG. 1;
FIG. 3(a) is a detail view showing a draw-out structure of a shelf member in FIG. 2, and FIG. 3(b) is a locally enlarged side-sectional view thereof;
FIG. 4(a) is a cross sectional view of cassettes arranged in the shelf member shown in FIG. 3, and FIG. 4(b) is a side cross sectional view thereof;
FIG. 5 is a front elevation view of a clamping member shown in FIG. 1;
FIG. 6 is a rearside elevation view of FIG. 5;
FIG. 7 is a side view of FIG. 5;
FIG. 8 is a view showing a state where a turn plate pivoted from the state of FIG. 7;
FIG. 9 shows views depicting a pivoted state of the turn plate;
FIG. 10 shows views showing medicines to be stored in cassettes;
FIG. 11 is an outline view descriptive of an operation state of a horizontal guide bar shown in FIG. 1;
FIG. 12 is a block diagram of a medicine supply unit in accordance with the present embodiment;
FIG. 13 is a flowchart diagram showing operation of the medicine dispensing device in accordance with the present embodiment;
FIG. 14 is a flowchart diagram showing the operation of the medicine dispensing device in accordance with the present embodiment;
FIG. 15 is a side cross sectional view showing a cassette in accordance with another embodiment;
FIG. 16 shows views descriptive of the operation of taking or removing a medicine from the cassette shown in FIG. 15;
FIG. 17 shows side cross sectional views showing a cassette in accordance with another embodiment;
FIG. 18(a) is a front elevation view showing medicines to be stored in the cassette shown in FIG. 17, and FIG. 18(b) is a side view thereof;
FIG. 19 is a perspective view showing an auxiliary pusher used in the cassette shown in FIG. 17;
FIG. 20 is a perspective view showing a cassette in accordance with another embodiment;
FIG. 21(a) is a front sectional view of the cassette shown in FIG. 20, and FIG. 21(b) is an enlarged view of the part A therein;
FIG. 22 is a side cross sectional view of the cassette shown in FIG. 20;
FIG. 23 is a plan view of the cassette shown in FIG. 20;
FIG. 24 is a perspective view showing an application example of a guide plate shown with the cassette shown in FIG. 15; and
FIG. 25(a) is a side view showing an application example wherein the guide plate is mounted to the cassette shown in FIG. 17, and FIG. 25(b) is a side view showing an operational state thereof.



PREFERRED EMBODIMENTS OF THE INVENTION
An embodiment of the present invention will be described in accordance with the accompanying drawings below.
FIG. 1 is a front elevation view of a medicine dispensing device in accordance with the present embodiment, and FIG. 2 is a side view thereof. In the medicine dispensing device, a device body 1 has a plurality of shelf members 2 juxtaposed in the upward and downward directions. A medicine D stored in a respective shelf member 2 is stored in a tray 5 by being conveyed to a lower side by using a medicine conveyance member 3 provided on the side of a front face of the device body 1. The tray 5 is mounted on a tray conveyance line 4 and conveyed.
The device body 1 has a frontside openable and closable by a door (not shown), and has a plurality of guide members 6 provided on sidewall inner surfaces. The guide members 6 have two types of functions and, as shown in FIGS. 2 and 3, include a first guide member 6a positioned in an uppermost portion and second guide members 6b positioned lower than the first guide member. The first guide member 6a tilts about a pivot 16 in the center after the shelf member 2 has been drawn out, however, the second guide members 6b do not have the function.
The first guide member 6a includes a guide wall 7 and a guide rail 8 slidably supported by an inner surface of the guide wall 7. The shelf member 2 reciprocatingly moves in a forward and rearward directions along an arrow mark shown in FIG. 2.
With reference to FIG. 3(a), the guide wall 7 has a first guide surface 9 extending in the forward and rearward directions, which is formed on a lower edge of an upper half, and a circularly arcuate second guide surface 10 formed on a front end face (front side) of the upper half. A support roller 11 is rotatably disposed on a front side of a lower half portion of the guide wall 7. The second guide surface 10 is provided with a stopper 12 that stops further rotation of the shelf member 2 being abutted with a protrusion piece 25a provided in the vicinity of a below-described guide roller 25 of the shelf member 2. The guide roller 25 rolls over the first guide surface 9 and the second guide surface 10 formed on the first guide member 6a of the device body 1.
In a guide rail 8, an intermediate rail portion 7a is slidably provided in a first rail portion 13 integrated with the guide wall 7, and a second rail portion 14 is slidably provided to the intermediate rail portion 7a. Thereby, the second rail portion 14 is reciprocatingly movable in the forward and rearward directions of the device body 1. A support wall 15 is formed above the second rail portion 14. A pivot 16 is provided in a central portion of the support wall 15 to thereby rotatably support the shelf member 2, whereby a first shelf member 2a is configured, as shown in FIG. 1. A spring 16a is provided around the pivot 16. One end portion of the spring is fixedly secured to the support wall 15 and the other end portion is abutted against an abutment receiving portion 15a formed in the shelf member 2, whereby the shelf member 2 is urged in the horizontal state. In addition, as shown in FIG. 3(a), an anchor receiving section 17 is formed on the front side of the support wall 15, wherein an anchoring portion 24 of a lock member 23 provided on the shelf member 2 is anchored. Thereby, the shelf member 2 is stopped for the rotation, thereby entering a tilted state.
With reference to FIG. 2, a second shelf member 2b is supported by the second guide member 6b, and has a support rail section 18 slidably supported along the forward and rearward directions of the device body 1. The second guide member 6b only supports the second shelf member 2b reciprocatingly movable along the forward and rearward directions, such that, different from the first shelf member 2a, the second shelf member 2b does not tilt.
With reference to FIG. 1, shelf positional shift sensors 19 are respectively provided in upper and lower portions of both sidewalls (in the present embodiment, the sensors are configured of two sets of sensors, each set having an light emitting device and a photoreceptor device). The shelf positional shift sensors 19 detects whether or not the shelf member 2 remains in the drawn-out state. In more specific, the shelf member 2 has through-holes formed in stored states in appropriate positions of the device body 1 to enable light transmission from the light emitting devices to the photoreceptor devices.
As shown in FIG. 2, the first shelf member 2a is rotatably supported by the guide wall 7 of the device body 1, and is urged to move in the horizontal direction by the spring 16a. As shown in FIG. 3, the lock member 23 is provided in the vicinity of a handle 22 provided on the one side, and the anchoring portion 24 therefor is engageable and disengageable with the anchor receiving section 17 of the support wall 15. With the anchoring portion 24 anchored to the anchor receiving section 17, the first shelf member 2a is maintained in the tilted state shown in FIG. 3. In addition, the guide roller 25 is rotatably provided on a back surface side of the first shelf member 2a. The guide roller 25 rolls over the first guide surface 9 and the second guide surface 10 formed on the guide member 6 of the device body 1. Medicine storage portions 21 have each a cassette 26 in which a medicine push out member 30 is provided.
As shown in FIG. 1, the shelf member 2 is such that medicine storage portions 21 are formed in a plurality of arrays along the width direction as viewed from the frontside of the device body 1 in a box body 20 whose upper surface is open and front side is cut out. The handle 22 is provided on each of both end portions of the front face of the box body 20.
With reference to FIG. 4, the cassette 26 is formed as a box with an open upper plane and so as to be capable of storing, wherein medicines D are aligned in an array with portions on upper sides (upper halves, for example) thereof being exposed. A bottom wall of the cassette 26 has a support plate 28 lengthy to the two sides so that a groove portion 27 is formed along a delivery direction of the stored medicines D. Thereby, an area in contact with the medicines D can be reduced, and a spring portion 35 of a constant load spring 32 can be positioned in the groove portion 27. An anchoring hole 29 where an anchor portion 37 of an anchoring lever 33, described below, is anchored is formed in a rear end portion of the cassette 26. Although the respective cassettes 26 may all be formed in the same size to store medicines D with the same shape in the same box body 20, if the cassettes are different in size (such as, the distance between the sidewalls, and the height of the sidewall), medicines D with other shapes can be stored.
With reference to FIGS. 4(a) and 4(b), the medicine push out member 30 has a configuration wherein the pusher 31, the constant load spring 32, and the anchoring lever 33 are provided in a casing 30a. 
The casing 30a is disposed on the bottom wall of the cassette 26 to be sidable along the delivery direction.
The pusher 31 is fixedly secured to an end face of the casing 30a and is formed in the shape of a plate that is capable of pushing the sidewall of the medicine D. In the present case, the pusher is formed in a stepped shape with a protrusion 31a provided on an abutment surface to be able to support a body portion d1 and leg portion d2, which is thinner than the body portion d1, of the medicine D with the shape shown in FIGS. 4(a) and 10(a). As shown in FIGS. 10(b) and 10(c), various types of medicines D are used. By changing the shape of the pusher 31 corresponding to the shape, the medicine D can be smoothly compressed along the delivery direction.
With reference to FIG. 4(a), the constant load spring 32 includes a drum 34 disposed in the casing 30a, and the spring portion 35 formed by winding a lengthy strip around the drum 34. In the constant load spring 32, the spring portion 35 extended from the casing 30a retracts into the casing 30a with a constant load, regardless of the extension size. The spring portion 35 is positioned in the groove portion 27 on the bottom wall of the cassette 26, and a lead end A of the spring portion 35 is fixedly secured on the front end face side of the cassette 26. In the present embodiment, commercially available “Constant”® or the like is used for the constant load spring 32.
The anchoring lever 33 is provided pivotably about a pivot portion 33a in the center, of which one end portion forms an operation section 36 for directly operating by a finger, and the other end portion forms the anchoring tab 37 that engages and disengages with the rear end side of the cassette 26.
As shown in FIG. 1, the medicine conveyance member 3 has horizontal guide bars 38, a vertical guide bar 39, and a medicine holding member 40 shown in FIGS. 5 and 6.
The horizontal guide bars 38, respectively, are disposed on upper and lower portions of the front side of the device body 1, and extends horizontally in the right and left directions as viewed in FIG. 1. The respective horizontal guide bars 38 synchronously rotate via pulleys 38a and belts 38b and 38c shown in FIG. 11. The horizontal guide bars 38 are each composed of a screw thread. The vertical guide bar 39 is such that the horizontal guide bars 38 engage upper and lower end portions thereof. The horizontal guide bars 38 are forwardly and reversely rotated by driving a motor (not shown), thereby reciprocatingly moving the vertical guide bar 39 and the medicine holding member 40. A drive motor 41 shown in FIG. 1 is provided on an upper portion of the vertical guide bar 39, thereby upwardly and downwardly moving the medicine holding member 40 connected to a midway portion of a belt 41b via a pulley 41a and the belt 41b. 
With reference to FIGS. 5 to 8, the medicine holding member 40 has a configuration wherein a frontward-rearward moving member 43 is reciprocatingly movably provided on a support member 42, and a clamping member 44 is pivotably provided on the frontward-rearward moving member 43.
The support member 42 has sidewall portions 42a and 42b whose upper portions connected. A guide receiving portion 45 is provided on an inner face of the one wall, sidewall portion 42a, and a first guide shaft 46 and a first screw thread 47 are provided on the other wall, sidewall portion 42b. The first screw thread 47 is rotated by driving a first motor 48 via a pulley 48a and a belt 48b. 
The frontward-rearward moving member 43 has side plate portions 50 provided to oppose both sides of a slide table 49. The slide table 49 is provided with a roller 49a rolling on the guide receiving portion 45 of the support member 42. In addition, the slide table 49 is penetrated by the first guide shaft 46, and is engaged with the first screw thread 47. When the first motor 48 is driven and forwardly and reversely rotated to rotate the first screw thread 47, the engagement position on the slide table 49 is varied. Thereby, the slide table 49, that is, the frontward-rearward moving member 43 reciprocatingly moves along the first guide shaft 46.
The clamping member 44 has a pair of pivotal plates 51, a second guide shaft 52 and a second screw thread 53 provided between the pivotal plates 51, and a pair of clamp pieces 54 penetrated by the second guide shaft 52 and engaging the second screw thread 53. The pivotal plates 51 are each mounted rotatably about a rotation shaft 51a in the center, the rotation shaft 51a being provided on the side plate portion 50 of the frontward-rearward moving member 43. Springs 51b are disposed on both end sides of the rotation shaft 51a, and the pivotal plate 51 is urged so as to be situated in the vertical position shown in FIG. 7.
A pressure receptor portion 55 is provided to extend in the horizontal direction in a lower end portion of the one pivotal plate 51. As described below, when the medicine conveyance member 3 is moved to a dispensing position, the pressure receptor portion 55 is compressed by a compressing piece (which corresponds to a compressing section according to the present invention, although not shown) provided in the device body 1. This causes the pivotal plate 51, that is, the clamping member 44, to rotate, thereby enabling a horizontally position of the medicine D clamped by the clamp pieces 54.
In addition, as shown in FIG. 9, in a lower end portion of the other pivotal plate 51, a first lock plate 56 is provided so as to be reciprocatingly movable in the state urged by a spring (not shown) in the horizontal direction (right side in FIG. 9(b)). A roller 56a and a lock pin 56b are provided on the first lock plate 56. The roller 56a is compressed by a projected portion 1a formed in the device body 1, thereby reciprocatingly moving in the horizontal direction along the projected portion 1a. The lock pin 56b moves in a lock hole 58 in a second lock plate 57 integrated with a lower end portion of the pivotal plate 51. The lock hole 58 is formed in a shape of a fan or sector with an arcuate portion 58a having a first lock recessed portion 58b and a second lock recessed portion 58c formed at the end portions thereof. When the clamping member 44 moves downward, the roller 56a is compressed by the projected portion 1a to thereby reciprocatingly move against urging forces of the spring 51b. Thereby, the lock pin 56b falls off from the first lock recessed portion 58b, moves to the second lock recessed portion 58c via the arcuate portion 58a, and then engages therewith. On the other hand, when the clamping member 44 moves upward, the roller 56a is compressed by the projected portion 1a to thereby reciprocatingly move against urging forces of the spring 51b. Thereby, the lock pin 56b falls off from the second lock recessed portion 58c, and moves to the first lock recessed portion 58b via the arcuate portion 58a. 
As shown in FIG. 8, two second guide shafts 52 as shown in FIGS. 5 and 6 are disposed on two sides with the second screw thread 53 in the center. The second screw thread 53 is mounted with the pair of clamp pieces 54 engaged therewith and further axially received by two second guide shafts 52. In addition, the second screw thread 53 is formed such that threads are formed in the mutually opposite relationship with respect to substantially the center of the axial length (for example, right-hand threads in the left half, and left-hand threads in the right half). Thereby, when the second screw thread 53 is rotated, the engagement position of the respective clamp piece 54 varies, such that the clamp pieces 54 move close to or away from one another along respective two second guide shafts 52. The second screw thread 53 is forwardly and reversely rotated via a pulley 59a and a belt 59b in accordance with the forward and reverse rotation of a second motor 59.
Referring to FIG. 5, the clamp piece 54 is configured of an outer frame 54a that guides to be a rectangular shape in a side view, and a resilient guide portion 54b that press-contacts the outer peripheral surface of the medicine D. The resilient guide portion is formed in such a manner as to form a cross sectional surface along a plane in contact with the medicine D into a sawtooth shape, thereby stabilizing the retained state of the medicine D.
Referring to FIG. 1, the tray conveyance line 4 is configured of a plurality of conveyance rollers 60 arranged in the horizontal direction at a predetermined pitch. The conveyance rollers 60 are rotated by a motor or the like (not shown) to convey the tray 5 placed thereover. A stopper (not shown) is provided on one end side of the tray conveyance line 4, whereby the conveyed tray 5 is temporarily stopped at the dispensing position to thereby make it possible to dispense the medicine D conveyed by the medicine conveyance member 3.
Referring to a block diagram of FIG. 12, in the medicine dispensing device configured as described above, a control device 61 refers to data stored in a storage device 64 and thereby performs drive control of respective driving devices 65. The control is performed in accordance with, for example, prescription data input from, for example, a server 62 and an input device 63, and a detection signal in the shelf positional shift sensor 19. The storage device 64 contains, for example, position data on the positions of the cassettes 26 in the shelf members 2, and various medicine-dispensing related data including types of medicines D stored in the respective shelf members 2, residual amounts thereof, and shapes thereof, for example.
Operation of the medicine dispensing device configured as described above will now be described in accordance with flowchart diagrams shown in FIGS. 13 and 14.
When prescription data is input from, for example, the server 62 or the input device 63 (step S1), the device reads out medicine-dispensing related data (step S2), which is stored in the storage device 64, in accordance with the input prescription data. Then, in accordance with the read-out medicine-dispensing related data, the device determines a cassette 26 on a shelf member 2 from which a medicine D described in the prescription data is taken or removed (step S3). In addition, in accordance with the shape of the medicine D contained in the medicine-dispensing related data, the gap between the clamp pieces 54 is predetermined to be slightly larger than the width of the medicine D (step S4). Thereby, the medicine D can be clamped with a minimum operation in the state of the medicine holding member 40 moved to an immediately-before position of the medicine D, and hence the operation time therefor can be reduced. Further, since the gap between the clamp pieces 54 relative to the width of the medicine D can be minimized, the cassette 26 in the respective shelf member 2 can be arranged close to a position not interfering with the clamp pieces 54.
Subsequently, the medicine conveyance member 3 is driven, thereby moving the medicine holding member 40 to the shelf member 2 storing the corresponding medicine D (step S5). When the medicine holding member 40 is moved to the immediately-before position of the shelf member 2 storing the corresponding medicine D (step S6), then the first motor 48 is forwardly driven to forwardly move the frontward-rearward moving member 43 (step S7). Then, the second motor 59 is driven, and the medicine D is clamped by the clamp pieces 54 (step S8).
Then it is determined whether or not the medicine D is appropriately clamped by the clamp pieces 54 (step S9). The determination is made to detect the energized state of current to the second motor 59 for fining whether or not the state is in an overcurrent state. If in the overcurrent state wherein, for example, a detected voltage value in excess of a predetermined threshold value, then it is determined that the medicine D is clamped by the clamp pieces 54. Alternatively, if the detected voltage value is not in excess of the threshold value, then it is determined that nothing is clamped by the clamp pieces 54.
If it is determined that the medicine D is not appropriately clamped by the clamp pieces 54, then it is recognized that the medicine D is not stored in the corresponding cassette 26 and it is reported as an out-of-stock instance (step S10).
Then it is determined whether or not a continuous process is set (step S11). If the continuous process is not set, then the operation terminates (step S12); or if set, the operation returns to step S1 and iterates the processes.
If it is determined that the medicine D is appropriately clamped by the clamp pieces 54, then the drive motor 41 of the medicine conveyance member 3 is forwardly driven to thereby move up the medicine holding member 40, and the medicine D clamped by the clamp pieces 54 is pulled out from the cassette 26 (step S13). Then the first motor 48 is reversely driven, and the medicine holding member 40 is returned to the immediately-before position of the cassette 26 (step S14). In this event, in the cassette 26, the medicines D are compressed by the pusher 31 urged by the constant load spring 32 and are thereby moved forward. As such, the medicines D abut a front-end inner face of the cassette 26, thereby automatically setting preparation for the subsequent dispensing operation.
Subsequently, the medicine holding member 40 is moved to the dispensing position of the tray conveyance line 4 (step S15). In this event, the tray 5 is conveyed by the tray conveyance line 4 to be brought into a standby state at the dispensing position (step S16).
In the medicine holding member 40, the pivotal plate 51 pivots when the compressing piece abuts the pressure receptor portion 55 immediately before the dispensing position is reached. The pivoting position of the pivotal plate 51 is located on the lower side of the lowest shelf member 2, which is located in the lowest position. Accordingly, the medicine D clamped by the clamp pieces 54 is horizontally positioned and forwardly pushed out. Consequently, the size in the forward and rearward directions of a spacing formed on the front side of the shelf member 2 in the device body 1 is reduced, and in addition, the medicine D can be horizontally stored in the tray 5.
After similar processes, when the operation of dispensing the medicine(s) D contained in the prescription data to the tray 5 is completed (step S17), then the stopped state of the tray 5 by the stopper at the dispensing position of the tray conveyance line 4 is reset. Then, the tray 5 is conveyed to the outside from the device body 1 (step S18).
Thus, according to the medicine dispensing device of the present embodiment, the disposition position of the medicine conveyance member 3 and the position for replenishing the medicine D into the cassette 26 by drawing out the shelf member 2 can be located on the front side of the device body 1. Accordingly, the same spacing can be shared, and hence the device itself can be formed to be compact. In addition, the clamp pieces 54 are pivoted on the lower side of the lowest shelf member 2 to thereby enable a clamped medicine D to be dispensed by using the medicine conveyance member 3. Accordingly, the spacing to be formed between the shelf member 2 and the front face of the device body 1 can be reduced. Further, the shelf member 2 can be drawn out in an oblique lower direction, such that even in the case of the first shelf member 2a, which is located in the highest position, replenishment of medicines D into the cassette 26 can easily be performed.
When no medicine D remains in a shelf member 2, the medicines D may be replenished by drawing out the shelf member 2. More specifically, the lock member 23 is pulled to thereby disengage the anchoring portion 24 from the anchor receiving section 17 of the device body 1, and the shelf member 2 is pulled out by holding the handles 22. In this case, as shown in FIG. 2 or 3, when the shelf is the highest shelf member 2, the draw-out side at the lead end can be tilted after the shelf member 2 has been drawn out from the device body 1. More specifically, when the shelf member 2 is pulled out by holding the handles 22, the first rail portion 13 and the second rail portion 14 sequentially extents from the sidewall, and the guide roller 25 slides on the first guide surface 9, whereby the shelf member 2 horizontally moves to the front side. When the guide roller 25 reaches the second guide surface 10, the guide function of the first guide surface 9 is lost, so that the shelf member 2 can be rotated about the pivot 16 in the center. As such, when the shelf member 2 is rotated against the urging forces of the spring 16a, the guide roller 25 rolls along the second guide surface 10, the draw-out side (lead end side) is tilted in the oblique lower direction. With the shelf member 2 having thus been tilted to the predetermined position, the rotation thereof is stopped by the lock member 23, such that medicines D are replenished into the cassette 26.
When storing the medicines D into the cassette 26, the pusher 31 of the medicine push out member 30 is compressed and moved against the urging forces of the constant load spring 32. Concurrently, the anchoring tab 37 of the anchoring lever 33 is anchored in the anchoring hole 29 formed on the back surface side of the cassette 26. Upon completion of replenishment of medicines D into the cassette 26, the anchoring lever 33 is manipulated to disengage the anchoring tab 37 from the anchoring hole 29. Thereby, the medicines D are moved by the urging forces of the constant load spring 32 to the front side of the cassette 26 to be aligned.
FIGS. 15 and 16 show a configuration wherein a fall prevention rod 66 is provided in an end portion on a medicine removal side of the cassette 26. The fall prevention rod 66 is disposed in the center of a substantially V-shaped cutout portion formed in the end portion of the cassette 26, and prevents a fallen state of the specially shaped medicine D. More specifically, the medicine D is such that intravenous-drip injection medication is stored in a specially shaped bottle that has projected portions respectively on the upper and lower portions of the body portion d1 and that additionally has on the lower side the leg portion d2 thinner than the body portion d1. As such, the medicines are arranged unstable in the cassette 26, so that the medicines each tend to fall when being, in particular, removed from the cassette 26. For this reason, the fall prevention rod 66 is provided to enable the support of the body portion d1 of the medicine D up to the vicinity of the upper end thereof, to thereby stabilize the stored state and removal state of the medicine D.
In addition, a guide plate 67 is formed on the cassette 26. The guide plate 67 is vertically formed from a sidewall on the one side of the cassette 26, has a bent shape to become substantially parallel to the cassette bottom wall in the upper position of the medicine D, and has an upper surface portion positioned in the vicinity of the next medicine D. Thereby, in the event of removing the medicine D, even when an adjacent medicine D is induced to be moved together by friction, the medicine D abuts the upper surface portion of the guide plate 67, such that discharging thereof is appropriately prevented.
FIG. 24 is a perspective view showing an application example of the guide plate 67 in the cassette shown in FIG. 15. In the case that the medicines D each having the shape shown in the drawing are stored in the cassette 26 and the guide plate 67 shown in FIG. 15 is mounted, when a neck ring Da provided to the medicine D is directed to the side of the guide plate 67 in the course of conveyance with the medicine push out member 30, the guide plate 67 in the cassette shown in FIG. 15 is entangled with a neck ring Da, such that the medicine push out member 30 cannot compress the medicines D. On the other hand, the guide plate 67 shown with the application example has a first sloped surface 67a upwardly sloped along the carrying direction, and a second sloped surface 67b sloped toward a central position of the cassette 26 from a mounted position of the guide plate 67. When the neck ring Da is directed to the side of the guide plate 67, it abuts the first sloped surface 67a, and upwardly rotates in the course of movement along the carrying direction. When the neck ring Da reaches an upper end portion of the guide plate 67, the abutment surface of the neck ring Da changes to the second sloped surface 67b, the neck ring Da directed to the side of the guide plate 67 rotates in the opposite direction. As such, in the case of the guide plate 67 in the present application example, when the medicines D are stored into the cassette 26, no care needs to be paid to prevent the neck ring Da from being directed to the side of the guide plate 67. Further, regardless of the direction of the neck ring Da, the medicine D can be securely conveyed by the medicine push-out member 30.
The medicine D is removed in the following manner from the cassette 26 having the fall prevention rod 66. The medicine D is clamped by the clamp pieces 54 of the clamping member 44, and as shown in FIG. 16(b), it is moved up to a position higher than the sidewall of the cassette 26. In this event, a next medicine D is prevented by the guide plate 67 from being discharged. Subsequently, the entirety of the medicine holding member 40, which has the clamping member 44, is moved along the horizontal guide bar 38. Then, as shown in FIG. 16(c), after the leg portion d2 of the medicine D is moved to a position not interfering with the fall prevention rod 66, the first motor 48 is reversely driven to return the medicine holding member 40 to the immediately-before position of the cassette 26. Thus, the medicine D is clamped by the clamp pieces 54 and removed from the side of the immediately-before position of the cassette 26. However, only the fall prevention rod 66 is additionally provided to the cassette 26, and the clamped medicine D is removed by being shifted to the left or right, such that no case occurs wherein the medicine D interferes with the fall prevention rod 66. Further, the process can be implemented at low costs without increasing the amount of removal time.
FIG. 17 shows a configuration wherein in addition to the fall prevention rod 66 (not essentially necessary), an auxiliary pusher 68 is provided on the pusher 31 of the cassette 26. The cassette 26 contains medicines D so-called kit medicines, each being prepared such that, as shown in FIG. 18, a thin container 69 storing an injection medication is put in a bag 70. The containers 69 are arranged in the cassette 26, and an upper half of the bag is clamped by the clamp pieces 54 to remove the kit medicine D. As shown in FIG. 19, the auxiliary pusher 68 is formed lower than the pusher 31 into a shape having a projected portion 68a in a central portion, and is integrated with the pusher 31. (If it is configured detachable, it can be attached only when a medicine stored in the cassette 26 is a thin and deformable type.) Portions excepting the projected portion 68a are positioned lower than the container 69, and only the end portions (portions chamfered into R shapes on both sides) are slightly projected from the container 69. In addition, the projected portion 68a is formed to have a width dimension not interfering with the clamp pieces 54 when the bag portion of the kit medicine D is clamped in a liftable state.
In the cassette 26 having the auxiliary pusher 68, only the container 69 can be appropriately compressed by the auxiliary pusher 68, and the medicines D can be appropriately aligned in the cassette 26.
In addition, in the event of medicine-D removal from the cassette 26, the bag portion is deformed to thereby enable the removal of a first medicine D when the medicine D is clamped by the clamp pieces 54. As such, in the same manner as shown in FIG. 15, after once taken up from the cassette 26, the medicine D is moved in the side direction and frontwardly removed while preventing interference with the fall prevention rod 66. Since the medicine D is thin, when the clamp pieces 54 clamp the medicine D, interference with a portion of the next or adjacent medicine D is unavoidable (even if it is attempted to avoid such interference, the medicine holding member 40 needs to be moved with high accuracy—which is impractical in terms of costs). In the course of clamping the medicine D by the clamp pieces 54, the bag portion expands in forward and rearward directions (longitudinal direction of the cassette 26), such that only the first medicine D thus clamped can be removed.
In this manner, the medicines D are serially removed from the cassette 26. When removing a last medicine D, only the projected portion 68a on the center exists in a movement path of the clamp pieces 54, hence obviating the case of interference with the clamp pieces 54. Consequently, even in the case that such thin medicines D are stored in the cassette 26, they can be smoothly discharged up to the last one.
FIGS. 25(a) and 25(b) are views showing an application example wherein the guide plate 67 is provided to prevent the bag portion of the next medicine D from being taken up. Referring to FIG. 25(a), the bag-shaped medicines D are aligned in the cassette 26, wherein the pusher 31 of the medicine push-out member 30 compresses the bag-shaped medicines D from the rear side thereof toward a removal portion. Since the bag-shaped medicines D are devoid of stability, the configuration has an auxiliary guide plate 74 in the width direction of the cassette 26. As shown in the drawings, in the vicinity of the removal portion, the guide plate 67 is provided tilted in the shape bent in such a manner as to press contact the cassette bottom wall in the conveyance course in the upper position of the medicines D. An end portion of the guide plate 67 has a hinge 75 configured of a holding portion 75a for holding the medicine D and a fixing portion 75b for fixing to the guide plate 67. The hinge 75 is urged by a spring (not shown) along the direction of the bottom wall of the cassette 26, thereby preventing the medicine D from being pushed out.
In the present application example having the guide plate 67, in the course of clamping the medicine D by the clamp pieces 54, the bag portion expands in the forward and rearward directions (longitudinal direction of the cassette 26). Accordingly, when removing only the first medicine D clamped, the next medicine D is stored below the guide plate 67, and further, also a portion of the medicine D expanded as a result of being clamped is removed with the clamp pieces 54 from the cassette 26 in the state of the portion engaging a lower portion of the guide plate 67, thus resulting in the risk that the bag of the medicine D may burst. Nevertheless, as shown in FIG. 25(b), in the event of removal, since the expanded portion of the medicine D contacts with the holding portion 75a to thereby be rotated, no cases take place wherein the bag of the medicine D is damaged and also the medicine D is upwardly moved.
FIG. 20 shows a configuration having a moving support portion 71 on the bottom wall of the cassette 26. In the example shown in FIG. 20, as the moving support portion 71, a configuration is employed wherein endless belts 73 are wound on between pulleys 72. The pulleys 72, respectively, are disposed in both end portions on both sides of the cassette 26. The endless belts 73 are wound on the respective pulleys 72 positioned on both sides, and are disposed in an exposed manner on two tracks on the bottom wall of the cassette 26. As shown in FIG. 21(a) and in FIG. 21(b) in more detail, cutouts (not shown) are formed in both end portions of the bottom wall of the cassette 26, wherein shifting of the endless belt 73 takes place via the cutout between a portion exposed on the bottom wall of the cassette 26 and a portion in an inner spacing on the bottom wall side of the cassette 26. The pulleys 72 are each rotatably provided about a rotation shaft 72a in the center, wherein when forces act on the endless belt 73, the endless belt 73 is enabled an easy perform of circular movement. Sawtooth-shaped protrusions and recesses, or irregular portions are formed on the surface of the respective endless belt 73 to reduce the area of contact with the bottom wall of the medicine D. In addition, in the example of FIG. 20, the medicine D stored in the cassette 26 has a structure wherein a bottom-wall central portion is recessed and only the peripheral portions can be contacted. For this reason, the two endless belts 73 are provided only for portions contactable with the bottom walls of the medicine D. In addition, since the endless belts 73 are thus provided on two tracks, even when the medicine D is rotated in the event of removal of the medicine D, one of the endless belts 73 follows. This makes it possible to prevent the medicine D from falling. Other configurations are similar to those of the cassette 26 shown in FIG. 4.
According to the cassette 26 thus configured, as shown in FIG. 22, the medicines D are aligned and stored in the cassette 26, and when the medicine is serially removed from the removal side, the remaining medicines D are pushed out to the removal side. The portions of the endless belts 73 exposed on the bottom wall of the cassette 26 are provided on two lines, and the irregular portions are formed on the surfaces thereof to reduce the area of contact with the medicine D. Accordingly, the medicine D smoothly slides and concurrently moves to the removal side. When friction forces acting between the bottom wall of the medicine D and the endless belt 73 are great, the endless belt 73 circularly moves before the medicine D falls. Further, since the two endless belts 73 are provided, even when forces in a rotation direction as shown by the arrow direction in FIG. 23 act on the medicine D, one of the endless belts 73 follows to increase the amount of movement of the medicine. Consequently, falling of the medicine D can be securely prevented.
REFERENCE NUMERALS
1. Device body
2. Shelf member
2a. First shelf member
2b. Second shelf member
3. Medicine conveyance member
4. Tray conveyance line
5. Tray
6. Guide member
6a. First guide member
6b. Second guide member
7. Guide wall
7a. Intermediate rail portion
8. Guide rail
9. First guide surface
10. Second guide surface
11. Support roller
12. Stopper
13. First rail portion
14. Second rail portion
15. Support wall
15a. Abutment receiving portion
16. Pivot
16a. Spring
17. Anchor receiving section
18. Support rail section
19. Shelf positional shift sensor
20. Box body
21. Medicine storage portion
22. Handle
23. Lock member
24. Anchoring portion
25. Guide roller
26. Cassette
27. Groove portion
28. Support plate
29. Anchoring hole
30. Medicine push-out member
30a. Casing
31. Pusher
31a. Protrusion
32. Constant load spring
33. Anchoring lever
34. Drum
35. Spring portion
36. Operation section
37. Anchoring tab
38. Horizontal guide bar (horizontal guide portion)
39. Vertical guide bar (vertical guide portion)
40. Medicine holding member
41. Drive motor
41a. Pulley
41b. Belt
42. Support member
43. Frontward-rearward moving member
44. Clamping member
45. Guide receiving portion
46. First guide shaft
47. First screw thread
48. First motor
48a. Pulley
48b. Belt
49. Slide table
49a. Roller
50. Side plate portion
51. Pivotal plate
52. Second guide
53. Second screw thread
54. Clamp piece
54a. Outer frame
54b. Resilient guide portion
55. Pressure receptor portion (pressure receptor portion)
56. First lock plate (first lock portion)
56a. Roller
56b. Lock pin
57. Second lock plate (second lock portion)
58. Lock hole
58a. Arcuate portion
58b. First lock recessed portion
58c. Second lock recessed portion
59. Second motor
59a. Pulley
59b. Belt
60. Conveyance roller
61. Control device
62. Server
63. Input device
64. Storage device
65. Driving device
66. Fall prevention rod
67. Guide plate
68. Auxiliary pusher
68a. projected portion
69. Container
70. Bag
71. Moving support portion
72. Pulley
73. Endless belt
74. Auxiliary guide plate
75. Hinge
75a. Holding portion
75b. Fixing portion
D. Medicine
d1. Body portion
d2. Leg portion

## Claims

1. A medicine dispensing device comprising:
a device body;
a plurality of shelf members juxtaposed in a vertical direction in the device body, each of the shelf members including one or more cassettes, each of the cassettes storing medicines in an aligned state;
a medicine conveyance member disposed at a front side of the device body, the medicine conveyance member including a medicine holding member that includes a clamping member configured to clamp the medicine; and
a tray disposed at a front lower side of the device body,
wherein the cassette includes a pusher that compresses the stored medicines toward the front side of the device body, and a constant load spring that exerts a constant load on the medicines stored in the cassette via the pusher,
wherein each of the shelf members is configured to be drawn out to the front side of the device body together with the cassettes thereof,
wherein at least one of the shelf members is configured to be rotatable so that one end portion of the shelf member drawn out to the front side of the device body together with the cassettes thereof is obliquely directed toward a lower side of the device body,
wherein the medicine conveyance member is configured to move the medicine holding member horizontally and vertically in the front side of the device body so that the medicine conveyance member can be positioned adjacent any of the one or more cassettes,
wherein the medicine conveyance member is configured to convey the medicines stored in the cassettes one by one from the one or more cassettes to the tray by means of the medicine holding member,
wherein the device body includes a slide member that supports the shelf member to be slidable along a horizontal direction and that causes the shelf member to be rotatable in a state of the shelf member drawn out from the device body; and a guide portion that guides the shelf member when the shelf member is rotated,
wherein the slide member includes a pivot that rotatably supports the shelf member and is located at the front side of the device body, and the shelf member is rotatable around the pivot at the front side of the device body in the state of the shelf member drawn out from the device body,
wherein the shelf member includes a guide roller, and
wherein the guide portion of the device body is formed to include a first guide surface whereon the guide roller rolls to thereby guide the shelf member slidably along in a horizontal state, and a circularly arcuate second guide surface whereon the guide roller rolls to thereby guide the shelf member to be in a tilted state when the shelf member is rotated in the state of the shelf member drawn out from device body.

2. The medicine dispensing device according to claim 1, wherein any one of the guide portion and the shelf member of the device body comprises a lock member that maintain the shelf member in the tilted state in the state of the shelf member drawn out from the device body and rotated.

3. The medicine dispensing device according to claim 1, wherein the guide portion includes a guide wall,
wherein the first guide surface is formed on a lower edge of the guide wall and extends in forward and rearward directions of the device body and the second guide surface is formed on a front end surface of the guide wall,
wherein the slide member further includes a guide rail that is provided in the guide wall and is reciprocatingly movable in the forward and rearward directions, and
wherein the pivot is provided on the guide rail.

4. The medicine dispensing device according to claim 3, wherein the slide member further includes a support wall that is formed in the guide rail and rotatably supports the shelf member around the pivot at the front side of the device body, and
wherein the pivot is provided in a central portion of the support wall.

5. The medicine dispensing device according to claim 4, wherein the slide member further includes a spring provided around the pivot, and
wherein one end portion of the spring is secured to the support wall and the other end portion of the spring is abutted against the shelf member, thereby urging the shelf member in the horizontal state.

6. A medicine dispensing device comprising:
a device body;
a plurality of shelf members juxtaposed in a vertical direction in the device body, each of the shelf members including one or more cassettes, each of the cassettes storing medicines in an aligned state; and
a medicine conveyance member disposed at a front side of the device body, the medicine conveyance member being configured to convey the medicines stored in the cassettes one by one from the front side of the device body,
wherein at least one of the shelf members is configured to be drawn out to the front side of the device body and rotatable so that one end portion of the shelf member drawn out to the front side of the device body is obliquely directed toward a lower side of the device body,
wherein the device body includes a slide member that supports the shelf member to be slidable along a horizontal direction and that causes the shelf member to be rotatable in a state of the shelf member drawn out from the device body; and a guide portion that guides the shelf member when the shelf member is rotated,
wherein the slide member includes a pivot that rotatably supports the shelf member and is located at the front side of the device body, and the shelf member is rotatable around the pivot at the front side of the device body in the state of the shelf member drawn out from the device body,
wherein the shelf member includes a guide roller, and
wherein the guide portion of the device body is formed to include a first guide surface whereon the guide roller rolls to thereby guide the shelf member slidably along in a horizontal state, and a circularly arcuate second guide surface whereon the guide roller rolls to thereby guide the shelf member to be in a tilted state when the shelf member is rotated in the state of the shelf member drawn out from device body.

7. The medicine dispensing device according to claim 6, wherein any one of the guide portion and the shelf member of the device body comprises a lock member that maintain the shelf member in the tilted state in the state of the shelf member drawn out from the device body and rotated.

8. The medicine dispensing device according to claim 6, wherein the guide portion includes a guide wall,
wherein the first guide surface is formed on a lower edge of the guide wall and extends in forward and rearward directions of the device body and the second guide surface is formed on a front end surface of the guide wall,
wherein the slide member further includes a guide rail that is provided in the guide wall and is reciprocatingly movable in the forward and rearward directions, and
wherein the pivot is provided on the guide rail.

9. The medicine dispensing device according to claim 8, wherein the slide member further includes a support wall that is formed in the guide rail and rotatably supports the shelf member around the pivot at the front side of the device body, and
wherein the pivot is provided in a central portion of the support wall.

10. The medicine dispensing device according to claim 9, wherein the slide member further includes a spring provided around the pivot, and
wherein one end portion of the spring is secured to the support wall and the other end portion of the spring is abutted against the shelf member, thereby urging the shelf member in the horizontal state.