JP5577033B2 - Drug container - Google Patents

Description

  The present invention relates to a medicine container, and more particularly, to a medicine container used in a medicine packaging device for supplying a patient with a tablet as a medicine specified in a prescription.

In hospitals, pharmacies, and the like, there are cases where a medicine packaging device is used to supply medicines, particularly tablets, instructed by a doctor's prescription to patients.
In this medicine packaging device, a medicine container (also referred to as “medicine cassette”) is detachably provided. As the medicine container, for example, a technique shown in Patent Document 1 below has been proposed.

The drug container disclosed in Patent Document 1 has a drug container in the upper part of the container body, and the drug container has a drug container in the outer periphery and rotates around the vertical axis to rotate the drug. A rotor for conveying in the direction is arranged.
In the above configuration, the rotor rotates on the bottom wall portion of the medicine container to convey the tablets contained in the medicine container, and the tablets are dropped and supplied one tablet at a time from the medicine discharge opening formed in the bottom wall portion. The

Japanese Utility Model Publication No.57-9295

In the above configuration, the rotor is loaded with a weight corresponding to the number of drugs in the drug container. Then, because the rotor is rotated on the bottom wall portion of the medicine accommodating section, the weight of the agent, or become Russia over data is difficult to smoothly rotate (or rotational speed is lowered), not rotate at a constant speed Or When doing so, the timing of the fall of the drug is not indeterminate from the drug discharge opening. Further, the linkage with the packaging unit of the medicine packaging device performing the packaging operation at a constant speed is not performed.

  Therefore, in view of the above problems, the present invention provides a drug container that can discharge a drug at a constant timing regardless of the amount of the drug in the drug container, and can reliably interlock with the packaging part of the drug packaging device. For the purpose of provision.

In the medicine container of the present invention, a rotor having a bottom surface facing the top surface of the bottom wall portion and rotating around a vertical axis is disposed below the medicine container portion and above the bottom wall portion of the medicine container portion. The rotor is formed with a medicine storage path extending in the vertical direction, and the medicine stored in the medicine storage path is dropped and supplied from the medicine discharge opening formed in the bottom wall portion by the rotation of the rotor. The medicine container is characterized in that a protrusion is provided on the bottom surface of the rotor.

In the above arrangement, the rotor and the bottom wall portion in contact via the projections, the projections as compared with the case where the upper surface of the bottom and the bottom wall portion of the rotor is in contact with the plane to each other, speed rotor is given on the vertical axis Rotates smoothly at For this reason, the medicine is dropped and supplied from the medicine discharge opening at a constant timing.

In the medicine container of the present invention, a rotor having a bottom surface facing the top surface of the bottom wall portion and rotating around a vertical axis is disposed below the medicine container portion and above the bottom wall portion of the medicine container portion. The rotor is formed with a medicine storage path extending in the vertical direction, and the medicine stored in the medicine storage path is dropped and supplied from the medicine discharge opening formed in the bottom wall portion by the rotation of the rotor. The medicine container is characterized in that a protrusion is provided on the upper surface of the bottom wall portion.
In the above configuration, the rotor and the bottom wall are in contact with each other through the protrusion, and the protrusion has a predetermined speed around the vertical axis as compared with the case where the bottom surface of the rotor and the upper surface of the bottom wall are in contact with each other. Rotates smoothly at For this reason, the medicine is dropped and supplied from the medicine discharge opening at a constant timing.

In the medicine container according to the present invention, the protrusions are arranged on the bottom surface of the rotor at intervals in the rotational circumferential direction of the rotor.
In the above configuration, since the protrusions are not present in the entire rotation circumferential direction, the rotor smoothly rotates around the vertical axis at a predetermined speed.

  In the medicine container of the present invention, a partition for partitioning medicines that overlap in the vertical direction is provided in order to drop a predetermined number of medicines contained in the medicine containing passage from the medicine discharge opening, and the protrusions are arranged in the radial direction of the rotor. It is characterized by being arranged at the same position as the medicine container.

In the above configuration, the medicine accommodated in the medicine accommodation path moves on the bottom wall portion with the rotation of the rotor and falls from the medicine discharge opening. At this time, since the medicines that overlap in the vertical direction are partitioned by the partition, only the medicine below the partition falls from the medicine discharge opening. In this way, a predetermined number of drugs are supplied.
In such a medicine container, the positional relationship between the rotor and the partition is important. That is, the rotor and the partition are positioned up and down with respect to the upper surface of the bottom wall portion. If a rotor contacts a partition, it will become difficult for a rotor to rotate. Moreover, when the clearance gap between a rotor and a partition body is large, the case where a chemical | medical agent will bite into this clearance gap is assumed.
When the protrusion is arranged at a position different from the drug containing path in the radial direction of the rotor and the rotor is positioned with respect to the bottom wall portion using this protrusion, the portion that forms the drug containing path in the rotor (hereinafter referred to as the following) Assembling error becomes large around the “drug containing passage forming portion”).
Therefore, in the present invention, the protrusions are arranged at the same position as the medicine accommodating path in the radial direction of the rotor (the position corresponding to the radial width region of the medicine accommodating path forming portion on the conveyance path in the circumferential direction of the medicine). And it is set as the structure which positions a rotor with respect to a bottom wall part using this protrusion.
As a result, an assembling error around the medicine accommodating path forming portion can be reduced. Therefore, the gap between the upper surface of the medicine container forming portion and the lower surface of the partition can be set appropriately, and problems such as the inhibition of the rotation of the rotor and the biting of the medicine as described above can be prevented. .

  In the medicine container according to the present invention, at least on the downstream side in the rotation direction of the rotor of the upper surface of the bottom wall portion in the outer peripheral portion of the medicine discharge opening, the slope is inclined upward toward the downstream side in the rotation direction continuously to the medicine discharge opening A guide recess having a surface as a guide surface is formed, and the projection is configured to be guided by the guide surface.

When the position of the protrusion is arranged in the region corresponding to the medicine discharge opening, and the rotation circumferential length of the protrusion is smaller than the circumferential length of the medicine discharge opening, when the rotor rotates around the vertical axis, It is assumed that the tip of the protrusion enters the medicine discharge opening. In this case, when the rotor rotates, the tip end portion of the protrusion comes into contact with the peripheral wall portion on the downstream side of the medicine discharge opening.
However, as described above, a guide recess is formed on the downstream side in the rotation direction of the rotor, with the guide surface being an inclined surface that is continuously inclined to the downstream side in the rotation direction continuously to the medicine discharge opening, and the protrusion is formed on the guide surface. By being guided, the rotor rotates smoothly even if the tip of the protrusion is in the state of entering the medicine discharge opening.

The medicine container according to the present invention is characterized in that a spring is provided to urge the rotor upward with respect to the upper surface of the bottom wall portion.
In this configuration, the spring bends in accordance with the weight of the medicine stored in the medicine container, and the protrusion approaches or contacts the upper surface of the medicine container.

In the medicine container according to the present invention, the rotor and the bottom wall portion are configured to contact with each other through a protrusion, and the protrusion has a contact area between the bottom surface of the rotor and the upper surface of the bottom wall portion in contact with each other as compared with each other. since a reduced rotor regardless weight of the pharmaceutical in medicine accommodating portion is smoothly rotated at a predetermined speed on the vertical axis, the agent can be a drop supplied from the medicine discharge opening at a predetermined timing, drug packaging The linkage with the packaging part of the device becomes accurate.

Hereinafter, a medicine packaging device according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an enlarged side view of a part of a medicine packaging device, FIG. 2 is a perspective view of a state in which a large number of medicine storage containers are mounted on a housing of the medicine packaging device, and FIG. 4 is a single side view of a rotor as a stirring member, and FIG. 5 is a single perspective view from below of the rotor.
6 is a partially enlarged sectional view of the medicine container, FIG. 7 is a partially enlarged view of FIG. 6, FIG. 8 is a perspective longitudinal sectional view at the center in the circumferential direction of the medicine container, and FIG. 9 is a medicine container. 10 is a cross-sectional view taken along line AA in FIG. 7, FIG. 11 is a cross-sectional view taken along line BB in FIG. 7, and FIG. 12 is a partially enlarged view of FIG.

  As shown in FIGS. 1 to 3, the medicine packaging device 1 includes a columnar housing 2, a fan-shaped support 3 projecting radially from the housing 2 in the horizontal direction, and a support 3. A medicine container 4 (also referred to as “medicine cassette”) is detachably accommodated between the upper and lower supports 3 by moving the housing 2 in the front-rear direction.

  Each support 3 is formed in a plate shape, and a tablet passage hole (not shown) for dropping a tablet 5 (for example, see FIG. 7) as a drug toward the lower portion of the housing 2 is formed on the plate surface. For example, a sensor (not shown) is provided on the inner surface of the tablet passage hole as detection means that can detect passage of the tablet 5.

Next, the structure of the medicine container 4 will be described with reference to FIGS.
As shown in these drawings, the medicine container 4 is configured so that the container body 6, the rotor 8 that can rotate around the vertical axis 7 (vertical axis), and the tablets 5 are dropped one by one on the lower part of the casing 2. When attaching and detaching the provided partition 10, a gear (a spur gear is used) attached to the lower end portion of the rotation shaft that is a rotation center member of the rotor 8, and the drug container 4 to and from the support 3 A guide roller 11 for guiding this is provided.

The container body 6 includes a fan-shaped bottom wall portion 12 in plan view and a medicine container 14 integrally formed on the upper surface 13a of the bottom wall plate 13 in the bottom wall portion 12.
The bottom wall portion 12 includes a fan-shaped bottom wall plate 13 in a plan view, a lateral frame 15 integrally formed along both sides of the bottom wall plate 13 in the circumferential direction, and the bottom wall plate 13. And a front frame 16 integrally formed along the circumferential direction on the front end side.
The horizontal frame 15 and the front frame 16 have the same predetermined height, and when the container body 6 is mounted on the upper surface of the support 3, the bottom wall plate 13 is equal to the height of the horizontal frame 15 and the front frame 16. It is held in a state where it floats from the upper surface of the support 3.

The medicine container 14 rises vertically upward from the upper surface 13a of the bottom wall plate 13 so that the rotor 8 can be disposed on the inner peripheral surface side, and a cylindrical part (corresponding to an outer wall part) 17 as a lower container part, It is arrange | positioned at the upper part of the cylindrical part 17, and it has integrally the fan-shaped upper accommodating part 18 by planar view. The bottom surface of the upper accommodating portion 18 is an inclined wall 20 that is inclined downward toward the upper end portion of the cylindrical portion 17.
In front of the cylindrical portion 17, a grip portion 21 that is gripped when the medicine container 4 is attached and detached is incorporated.

Near the center of the bottom wall plate 13 in the circumferential direction, a medicine discharge opening 22 having a rectangular shape in a plan view facing the tablet passage hole in the vertical direction is formed.
A cylindrical projection 23 into which the rotating shaft is inserted from above is integrally formed at the center position of the cylindrical portion 17 in front of the medicine discharge opening 22 so as to protrude upward. Details of the medicine discharge opening 22 and its surroundings will be described later.

Next, the structure of the partition 10 is demonstrated.
The partition 10 is configured to drop a predetermined number (one in this case) of tablets 5 accommodated in a medicine accommodation path 24 described in detail later into the medicine discharge opening 22.
The partition 10 is inserted into the insertion hole 25 formed in the circumferential direction in the wall surface portion on the rear side of the cylindrical portion 17 from the rear to the front, and is exposed in the cylindrical portion 17. The partition 10 has a base portion 26 arranged outside the cylindrical portion 17, and a support projection 27 formed so that one side of the base portion 26 protrudes rearward from the outer peripheral surface near the one side of the cylindrical portion 17. The screw 28 is detachably attached.
In addition, the upper surface of the part of the partition 10 that is exposed in the cylindrical portion 17 is an inclined guide surface 30 that is inclined upward on the upstream side in the rotational direction of the rotor 8 toward the downstream side. It is formed on a horizontal plane.

Next, the configuration of the rotor 8 will be described.
The rotor 8 has a lower rotating part 32 and an upper rotating part 33. The rotating shaft has an outer shaft 34 provided in the lower rotating portion 32 and an inner shaft 35 provided in the upper rotating portion 33. The rotor 8 has a function as an agitating member for agitating a large number of tablets 5 accommodated in the upper accommodating portion 18.
The lower rotating portion 32 has the outer shaft 34 that is fitted into the cylindrical protruding portion 23 from above and protrudes downward with respect to the bottom wall plate 13. The upper rotating portion 33 has the inner shaft 35 that is fitted into the outer shaft 34 from above and projects downward with respect to the bottom wall plate 13.

The lower rotating part 32 has a disk part 32A formed in a disk shape, the upper surface of which is a smooth surface, and the lower surface of the upper rotating part 33 is slidably placed in the circumferential direction on the upper surface. Yes. The diameter of the lower rotating part 32 is set slightly smaller than the inner diameter of the inner peripheral surface 36 of the cylindrical part 17.
A bulging portion 40 that protrudes upward and fits into a lower surface recess 38 formed at the center of the back surface of the upper rotating portion 33 is formed at the center in the radial direction of the lower rotating portion 32. The outer shaft 34 is integrally formed from the radially inner side of the bulging portion 40 downward.
A large-diameter gear 41 as the gear is fitted on the lower end of the outer shaft 34 that protrudes further downward from the lower surface 13 b of the bottom wall plate 13.
A locking portion 39a of the leaf spring 39 is locked to the teeth of the large-diameter gear 41 from the side in order to prevent unexpected rotation of the lower rotating portion 32.

By making the annular region of the radially inner portion from the outer peripheral surface of the lower rotating portion 32 a drug containing passage forming portion, the outer peripheral surface of the lower rotating portion 32 is retracted radially inward at equal intervals in the circumferential direction, A plurality of the drug storage paths 24 are formed along the vertical direction. The circumferential width and height of the medicine storage path 24 are set so that only one tablet 5 can be stored.
In the lower rotating part 32, the upper surface between the medicine storage paths 24 is a mounting surface 24 a on which the tablets 5 stored in the medicine storage part 14 are placed. In this case, the mounting surface 24a is formed in an annular plane in plan view.

The bottom surface (lower surface) 32a of the disc portion 32A is an annular smooth surface. The bottom surface 32a is formed in an annular shape by forming a recess 32B at the center of the disc portion 32A.
In particular, as shown in FIGS. 4 and 5, the protrusions 29 are arranged at equal intervals in the circumferential direction on the bottom surface 32a of the disc portion 32A. By providing this protrusion 29, the bottom surface 32a of the disc portion 32A is set to be positioned upward by the height of the protrusion 29 (distance L1 described later).
The protrusion 29 is disposed at the same position as the drug storage path 24 in the radial direction of the rotor 8 (a position corresponding to the drug storage path 24).
In this embodiment, the protrusions 29 are arranged at an intermediate position between the drug storage path 24 and the drug storage path 24 at intervals of 90 °, and any of the protrusions 29 is positioned at the outermost end position of the bottom surface 32a.

Each protrusion 29 protrudes slightly from the bottom surface 32a of the disk portion 32A. Even when the tablet 5 is contracted by the weight of the tablet 5 on the lower rotating portion 32 and the coil spring 48 described later contracts, or the medicine container 4, even if the rotor 8 (lower rotating portion 32) is inclined with respect to the vertical axis 7 due to rattling or the like due to an assembly error of 4, the bottom surface 32 a of the disk portion 32 A and the upper surface 13 a of the bottom wall plate 13 except for the protrusions 29. And the protrusion 29 is configured to contact the upper surface 13a of the bottom wall plate 13.
Note that these protrusions 29 are formed in a substantially hemispherical shape having a downward projection, and are integrally formed on the disc portion 32A with synthetic resin. A material excellent in self-lubricating property is used as a synthetic resin.
In FIG. 5, the code | symbol 31 has shown the rib. The ribs 31 are formed in a wall shape in the recesses 32 </ b> B at regular intervals in the circumferential direction along the radial direction. The rib 31 has a bottom surface that is flush with the bottom surface 32a.

The upper surface of the upper rotating portion 33 is formed in a substantially conical shape, and an inclined flat surface portion (not shown) cut so as to be inclined downward in the radial direction is formed on a part of the upper surface.
The upper rotating portion 33 is provided via a gap 19 in which the tablet 5 can drop with respect to the inner peripheral surface 36 of the cylindrical portion 17. In other words, the outer diameter side 33 a of the upper rotating portion 33 faces the inner peripheral surface 36 of the cylindrical portion 17 through the gap 19 in the radially inner and outer directions. The radial width of the gap 19 substantially coincides with the radial width of the medicine container 24.
With such a configuration of the upper rotating part 33, when the tablet 5 is placed on the upper surface of the upper rotating part 33, the tablet 5 slides obliquely downward along the upper surface or the inclined flat part and is accommodated in the medicine accommodating path 24. It is configured as follows.

The upper rotating portion 33 has an inner shaft 35 provided along the vertical direction at the radial center position of the lower surface recess 38.
The inner shaft 35 penetrates the bottom wall plate 13 so as to be fitted and inserted into the outer shaft 34, and the lower end portion of the inner shaft 35 protrudes further downward than the lower end portion of the outer shaft 34. A small-diameter gear 45 having a smaller diameter than that of the large-diameter gear 41 is externally fitted to the lower end portion of the inner shaft 35.
As described above, the outer shaft 34 and the inner shaft 35 are provided with gears having different diameters, so that when the drug container 4 is mounted on the support 3 and each gear is rotated, the upper shaft rotates. The part 33 and the lower rotating part 32 are configured to rotate around the vertical axis 7 at different speeds.

A thin annular member 65 is loosely fitted on the cylindrical protrusion 23 (see FIG. 8). The annular member 65 is a spring seat at the lower end of the coil spring 48 (compression spring) as an example of an elastic body. It has become.
The back surface 47 of the bulging portion 40 is formed with a locking portion 66 for locking the upper end surface of the coil spring 48 in the circumferential direction. The locking portions 66 are formed in a thin plate shape, and a plurality of the locking portions 66 are radially formed on the back surface 47 in the radial direction centered on the vertical axis 7. The amount of the locking portion 66 protruding downward from the back surface 47 is slight. Therefore, the upper end portion of the coil spring 48 uses the lower surface 66a of the locking portion 66 as a spring seat.

Due to the elasticity of the coil spring 48, the rotor 8, that is, the upper rotating portion 33 and the lower rotating portion 32 are urged in the direction of floating from the upper surface 13 a of the bottom wall plate 13. In addition, the coil spring 48 expands and contracts according to the weight resulting from the amount of the tablet 5 accommodated, and when at least the tablet 5 is not on the rotor 8, the lower surface of the rotor 8 is slightly from the upper surface 13a of the bottom wall plate 13. Floating.
When at least the tablet 5 is not on the rotor 8, the protrusion 29 is also separated from the upper surface 13 a of the bottom wall plate 13.

As shown in FIG. 7, when the tablet 5 is not contained in the medicine container 14, the distance L1 in the vertical direction between the bottom surface 32a of the lower rotating part 32 and the upper surface 13a of the bottom wall plate 13 is the locking part. It is set larger than the distance L2 in the vertical direction between the lower surface 66a of 66 and the upper end surface 23a of the cylindrical protrusion 23.
However, by forming the protrusion 29 on the bottom surface 32a of the lower rotating portion 32, the distance L3 in the vertical direction from the lowermost end portion 29a of the protrusion 29 to the upper surface 13a of the bottom wall plate 13 is equal to the lower surface 66a of the locking portion 66. It is set to be smaller than the distance L2 in the vertical direction with respect to the upper end surface 23a of the cylindrical protrusion 23.

Next, the structure of the medicine discharge opening 22 and its peripheral part will be described in detail.
The medicine discharge opening 22 is formed in a rectangular shape in plan view as described above, and the front wall surface 50 and the rear wall surface 51 that form the drug discharge opening 22 face each other in the front-rear direction. Opposite in the left-right direction.

The position P1 of the front wall surface 50 will be described. The front wall surface 50 is a vertical surface, and the front wall surface 50 is centered with respect to a virtual circle that is drawn so that the radial inner surfaces 55 of the drug containing passage 24 are continuous with each other about the vertical axis 7 that is the rotation center of the rotor 8. The position is shifted to the side (vertical axis 7 side).
The position P2 of the rear wall surface 51 will be described. The rear wall surface 51 is a vertical surface, and is displaced further rearward with respect to the outer peripheral surface 42 of the cylindrical portion 17 about the vertical axis 7 that is the rotation center of the rotor 8. That is, the position is shifted rearward (outward in the radial direction of the rotor 8) with respect to the intersection position P <b> 3 between the inner peripheral surface 36 of the cylindrical portion 17 and the upper surface 13 a of the bottom wall plate 13.
The amount of deviation is not particularly defined, but is preferably set as appropriate based on conditions such as the shape, diameter, and size of the tablet 5 to be handled.
Both side wall surfaces 52 and 53 are vertical surfaces, and the separation distance in the left-right direction is set to be larger than the circumferential width of the medicine container 24.

A notch 56 that is concave upward is formed in an area corresponding to the medicine discharge opening 22 in the vertical direction at the lower end of the cylindrical portion 17 so as to be continuous with the medicine discharge opening 22.
Since this notch 56 is concave upward so as to be continuous with the medicine discharge opening 22, the upper wall surface 57 constituting the notch 56 is naturally above the upper surface 13 a of the bottom wall plate 13. The upper wall surface 57 is a flat surface.

A cover portion 58 that covers the medicine discharge opening 22 and the notch 56 on the radially outer side of the cylindrical portion 17 is provided.
The cover part 58 has a rising wall 60 and an extension wall 61. The rising wall 60 has an inner wall surface 62 that rises upward from the position of the rear wall surface 51 of the medicine discharge opening 22. The extension wall 61 has a lower wall surface 63 that extends rearward from the position of the upper wall surface 57 of the notch 56. In the cover portion 58, the left and right sides of the rising wall 60 and the extension wall 61 are closed by vertical wall pieces 64.

The cover portion 58 having such a configuration is formed integrally with the cylindrical portion 17 and the bottom wall plate 13.
The upper wall surface 57 of the notch 56 and the lower wall surface 63 of the extension wall 61 are uneven surfaces that repeat an uneven shape in the circumferential direction, and the uneven portions 63a and 63b that constitute the uneven surface are formed on the uneven surface in the radially inward / outward direction ( It is formed over the longitudinal direction).

As shown in FIGS. 10 to 12, a guide recess 67 is formed on the downstream side in the rotation direction of the rotor 8 in the upper surface 13 a of the bottom wall plate 13 in the outer peripheral portion of the medicine discharge opening 22.
The guide recess 67 is formed in an arc shape along the inner peripheral surface 36 of the cylindrical portion 17. The guide recess 67 is formed continuously from the medicine discharge opening 22 and has an inclined surface that is inclined upward toward the downstream side in the rotation direction. This inclined surface is a guide surface 68 of the protrusion 29.
Therefore, the guide recess 67 is at a position corresponding to the protrusion 29. That is, the bottom wall plate 13 is at the most radially outward position on the top surface 13a. The radial width of the guide recess 67 is set to be slightly larger than the radial width of the protrusion 29. For example, the radial width of the guide recess 67 is set to 1.0 to 2.0 mm.

In the medicine packaging device 1 configured as described above, the lid 4A of the medicine container 4 is opened, the tablet 5 is put into the container body 6 from the upper container 18, and the lid 4A is closed.
At this time, due to the elasticity of the coil spring 48, the lower rotating portion 32 floats from the upper surface 13 a of the bottom wall plate 13, and the protrusion 29 is also separated from the upper surface 13 a of the bottom wall plate 13.

In the state where the tablet 5 is not contained in the medicine container 14, the distance L3 in the vertical direction from the lowermost end 29a of the protrusion 29 to the upper surface 13a of the bottom wall plate 13 is equal to that of the bottom surface 66a of the locking portion 66 and the cylinder. The distance L2 is set smaller than the distance L2 in the vertical direction with respect to the upper end surface 23a of the protruding portion 23.
Therefore, if the tablet 5 is put into the medicine container 14 and its weight is applied to the rotor 8 and the coil spring 48 is contracted, the lower surface 66a of the locking portion 66 is brought into contact with the upper end surface 23a of the cylindrical protrusion 23. Further, the protrusion 29 comes into contact with the upper surface 13 a of the bottom wall plate 13.
Assuming that the protrusion 29 is in contact with the upper surface 13a of the bottom wall plate 13, the protrusion 29 is hemispherical in this case. Therefore, the upper surface 13a of the bottom wall plate 13 and the protrusion 29 are in point contact.

  Subsequently, when the medicine container 4 is mounted so as to be pushed into the support 3, the front end portion of the leaf spring 39 is pressed by the front end portion of the pressing wall 49 erected on the rear upper surface of the support 3. Then, the locking portion 39a of the leaf spring 39, which is bent around the base end portion of the leaf spring 39 and locked to the teeth of the large-diameter gear 41, is released from the teeth and the locking is released. The drive gear (not shown) is engaged with the small diameter gear 45 and the large diameter gear 41 so that the small diameter gear 45 and the large diameter gear 41 can rotate about the vertical axis 7.

In such a state, when the drive gear is driven to rotate, the small diameter gear 45 and the large diameter gear 41 rotate around the outer shaft 34 and the inner shaft 35 at different speeds, respectively, and as a result, the lower rotating portion 32 of the rotor 8. The upper rotating portion 33 rotates about the vertical axis 7 together with the outer shaft 34 and the inner shaft 35 at different speeds.
As described above, when the lower rotating portion 32 and the upper rotating portion 33 of the rotor 8 rotate at different speeds, one tablet 5 is accommodated in the medicine accommodating path 24 while the charged tablet 5 is sufficiently stirred. The Further, another tablet 5 overlaps the tablet 5 stored in the medicine storage unit 24. Furthermore, the tablets 5 are placed on the placement surface 24a so as to be arranged in a row in the circumferential direction.

  Further, since the locking portion 66 of the back surface 47 of the bulging portion 40 is formed and the upper end surface of the coil spring 48 is locked to the locking portion 66, the coil spring 48 is also moved in the vertical axis as the rotor 8 rotates. Rotate around 7.

  And if the tablet 5 has overlapped with the medicine storage path 24 in the upper and lower sides, the tablet 5 on the upper side is squeezed by the partition 10 by the rotation of the rotor 8 (in the medicine storage path 24). It is separated from tablet 5). When the rotor 8 rotates about the vertical axis 7 and the medicine storage path 24 in which the tablet 5 is stored is opposed to the medicine discharge opening 22 in the vertical direction, only the tablet 5 is discharged from the medicine storage path 24. Fall to 22. In this case, the inner peripheral surface 36 of the cylindrical portion 17 can be a guide surface that guides the dropping of the tablet 5.

By the way, the distance L3 in the vertical direction from the lowermost end portion 29a of the protrusion 29 to the upper surface 13a of the bottom wall plate 13 is the vertical distance between the lower surface 66a of the locking portion 66 and the upper end surface 23a of the cylindrical protruding portion 23. It is set to be smaller than the distance L2.
Therefore, when the weight of the tablet 5 is applied to the rotor 8 and the rotor 8 moves downward, the lowermost end portion 29a of the protrusion 29 comes into contact with the upper surface 13a of the bottom wall plate 13, and the lower surface 66a of the locking portion 66 and It does not contact the upper end surface 23a of the cylindrical protrusion 23.

  Thus, even if the weight of the tablet 5 is applied to the rotor 8 and the rotor 8 rotates about the vertical axis 7, the rotor 8 and the upper surface 13 a of the bottom wall plate 13 are only in contact with the protrusion 29. Compared with the case where the bottom surface 32a of the lower rotating part 32 is in contact with the upper surface 13a of the bottom wall plate 13, the frictional force becomes extremely small. For this reason, the rotor 8 can rotate around the vertical axis 7 very smoothly.

Further, a guide recess 67 is formed continuously to the medicine discharge opening 22. For this reason, as shown by the phantom lines in FIG. 12, when the rotor 8 (lower rotating portion 32) rotates and the projection 29 enters the medicine discharge opening 22, the projection 29 is guided by the guide surface 68 of the guide recess 67. Therefore, the rotor 8 is smoothly rotated.
Since the radial width of the guide recess 67 is only slightly larger than the radial width of the protrusion 29 (because it is sufficiently smaller than the size of the tablet 5), the tablet 5 is separated from the guide recess 67. The phenomenon of being caught in the gap between the bottom surface 32a of the lower rotating portion 32 and the upper surface 13a of the bottom wall plate 13 does not occur.

By the way, the tablets 5 that overlap in the vertical direction are partitioned by the partition body 10, so that it is necessary to drop one tablet (predetermined number) of the tablets 5 in the medicine container 24. For this reason, it is necessary to set the height relationship between the vertical position of the partition 10 and the overlapping position of the partitioned tablet 5 in the vertical direction as accurately as possible.
Therefore, in this embodiment, the position of the protrusion 29 is arranged at the same position as the medicine accommodating path 24 (the medicine accommodating path forming portion) on the bottom surface 32a of the lower rotating portion 32. By configuring in this way, the projection 29 is applied to the upper surface 13a of the bottom wall plate 13, and the height position of the rotor 8 with respect to the bottom wall plate 13 is determined at the position where the projection 29 is present, so that the highest assembly accuracy is required. It is possible to ensure the accuracy of assembly of the members at the positions where they are to be placed. Therefore, it is possible to reliably partition the tablets 5 that overlap in the vertical direction.

If the position of the rotor 8 (mounting surface 24a) is higher than necessary with respect to the partition 10, and the rotor 8 comes into contact with the partition 10, the rotor 8 is not smoothly rotated. In addition, when the position of the rotor 8 is lower than necessary with respect to the partition 10, a phenomenon that the partition 10 hits a position close to the center of the upper tablet 5 in the vertical direction among the tablets 5 overlapping in the vertical direction is assumed. Is done. If so, it is considered that the upper tablet 5 may be bitten between the partition 10 and the mounting surface 24a, or the upper tablet 5 may be damaged.
However, the protrusion 29 is set to a predetermined vertical height (projection amount), and is arranged in an area (medicine containing path forming portion) corresponding to the circumferential direction of the tablet 5 so that the protrusion 29 is the bottom. By making it contact with the upper surface 13a of the wall board 13, the relative position of the up-down direction of the partition 10 and the mounting surface 24a can be set with a sufficient precision.
In other words, the rotor 8 can be assembled to the bottom wall portion 12 so that the vertical distance between the position of the rotor 8 and the partition 10 is not excessive or insufficient.

  Therefore, the tablet 5 can be dropped from the medicine discharge opening 22 at a constant timing, and the detection means detects that the tablet 5 reaches the tablet passage hole and is discharged through the tablet passage hole. Thus, the tablets 5 can be accurately distributed.

  Further, the front wall surface 50 of the medicine discharge opening 22 is in front of the radially inner surface 55 of the medicine container 24, and the rear wall surface 51 of the medicine discharge opening 22 is retracted with respect to the inner peripheral surface 36 of the cylindrical portion 17. Therefore, when the tablet 5 reaches the medicine discharge opening 22, it is possible to avoid a state in which the tablet 5 contacts the front wall surface 50 or the rear wall surface 51.

  Therefore, even when the tablet 5 is charged by the above-described stirring or the like (charged with static electricity), the surface on which the tablet 5 is easily adsorbed by the charging, that is, the lower surface 13 b of the bottom wall plate 13 is separated from the tablet 5. By being separated, it is possible to effectively avoid a state in which the tablet 5 is attracted to the lower surface 13b of the bottom wall plate 13 due to electrification and hardly falls into the tablet passage hole.

  Further, the rear wall surface 51 is further rearwardly displaced with respect to the outer peripheral surface 42 of the cylindrical portion 17, and a notch 56 continuous with the medicine discharge opening 22 is formed at the lower end portion of the cylindrical portion 17. The rear wall surface 51 portion and the notch 56 of the medicine discharge opening 22 are covered on the rear side by the cover portion 58, so that dust enters the inside of the cylindrical portion 17 from the rear wall surface 51 portion and the notch 56 of the medicine discharge opening 22. Can be effectively prevented.

Thus, at least the lower end portion of the rear wall surface 51 is displaced radially outward with respect to the crossing position P3. With this configuration, if the tablet 5 reaches at least the medicine discharge opening 22, it is compared with the conventional case. Since the area where the tablet 5 can come into contact with the peripheral wall surface of the medicine discharge opening 22 is reduced on the rear side, even if the tablet 5 is charged, it adheres to the lower surface 13b of the bottom wall plate 13 on the rear side of the medicine discharge opening 22. Hateful.
Therefore, the tablet 5 smoothly falls from the medicine discharge opening 22 to reach the tablet passage hole, and the detection means detects that the tablet 5 has been discharged by passing through the tablet passage hole, so that the tablet 5 is further removed. Can be distributed reliably.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the protrusion 29 has a substantially hemispherical shape and is arranged at intervals in the circumferential direction. However, the protrusion can also be formed on the bottom surface 32 a of the lower rotating portion 32 in an annular shape with the vertical axis 7 as the center.
The cross-sectional shape is not particularly limited, and a rectangular shape having a small radial width, an inverted triangular shape, a hemispherical shape, or the like having a predetermined length in the circumferential direction is formed on the same circumference at a predetermined interval. Or may be brought into line contact with the upper surface 13a of the bottom wall plate 13.

In the above embodiment, since the medicine storage path 24 is disposed at the radially outer end of the lower rotating part 32, the projection 29 is accordingly formed at the radially outer end of the bottom surface 32 a of the lower rotating part 32. Arranged. However, since the projection is arranged at the same position as the medicine accommodating path in the radial direction of the rotor, the projection is not limited to being arranged at the radially outer end of the bottom surface of the rotor.
In the above embodiment, the annular region of the radially inner portion from the outer peripheral surface of the lower rotating portion 32 is used as a medicine containing passage forming portion, and the outer peripheral surface of the lower rotating portion 32 is radially inward at regular intervals in the circumferential direction. By retracting, the medicine storage path 24 is formed along the vertical direction. However, the medicine storage path forming portion is a region that is displaced inward in the radial direction with respect to the outer peripheral surface of the rotor, and penetrates the drug storage path vertically inward in the radial direction with respect to the outer peripheral surface of the rotor. It may be formed as a hole.

In such a case, the projections are arranged so as to be displaced inward in the radial direction with respect to the outer peripheral surface of the rotor so as to be arranged at the same position as the medicine accommodating path. By disposing the protrusions at the same position as the drug storage path in the radial direction of the rotor, it becomes possible to ensure the assembly accuracy of the members at the position where the highest assembly accuracy is required. It can be reliably partitioned.
In any of the above-described protrusions, the frictional force is extremely small as compared with the case where the bottom surface of the rotor contacts the top surface of the bottom wall plate. For this reason, the rotor can rotate about the vertical axis very smoothly.

Moreover, in the said embodiment, although the protrusion was provided in the bottom face 32a of the lower rotation part 32, it can also be provided in the upper surface 13a of the bottom wall board 13. FIG.
In this case, the rotor 8 can be stably rotated around the vertical axis 7 by causing the protrusion and the bottom surface 32a of the lower rotating portion 32 to be in point contact or line contact. 5 can be dropped at a fixed timing.

By the way, depending on the type of the tablet 5 to be handled, the surface of the tablet 5 may be rubbed by stirring the tablet 5 or the like to generate a medicine powder. This medicinal powder tends to accumulate on the upper surface 13 a of the bottom wall plate 13. And in the said embodiment, it is set as the structure which provided the processus | protrusion in the bottom face 32a of the lower rotation part 32, or the upper surface 13a of the bottom wall board 13. As shown in FIG.
Here, when the protrusions 29 are provided on the bottom surface 32 a of the lower rotating portion 32 with a gap in the circumferential direction, it is assumed that the powder is conveyed in the rotation direction of the rotor 8 by the movement of the protrusions 29. The Then, the malfunction that the conveyed powder falls from the chemical | medical agent discharge opening 22 is assumed.

  In order to solve such a problem, it is preferable to provide a blocking means on the upper surface 13 a of the bottom wall plate 13 for blocking the powder from being conveyed to the drug discharge opening 22. This blocking means is provided on the upper surface 13 a of the bottom wall plate 13 in a region including at least the locus of the protrusion 29.

  For example, as shown in FIGS. 13 to 16, it is conceivable to provide a powder remover in a region including the locus of the protrusion 29 on the upper surface 13 a of the bottom wall plate 13. 13 is a perspective view from the upper side of the state in which the rotor 8 and a part thereof are omitted and the upper surface 13a of the bottom wall plate 13 is represented. FIG. 14 is a perspective view from the upper side. FIG. FIG. 16 is a perspective view of the powder removal body from the upper other side.

As shown in these drawings, a brushed brush body 80 can be considered as an example of the powder removal body. As the brush body 80, the thing which the raising | lifting 82 was planted in the base surface member 81 can be considered.
In this case, the height of the raised portions 82 of the brush body 80 is sequentially increased so that the upstream side in the rotational direction of the rotor 8 is lowered and the upper side is inclined upward in the rotational direction.

  However, the height of the raised portions 82 is preferably as low as possible as long as the protrusions 29 can come into contact and the drug powder can be removed. This is because it is necessary to reduce the resistance as much as possible when the protrusion 29 moves in the rotation direction. In consideration of this, the base member 81 of the brush body 80 is preferably embedded by forming a recess 83 in the upper surface 13 a of the bottom wall plate 13. Moreover, it is preferable to make the length of the brush body 80 in the circumferential direction as short as possible after removing the powder.

The blocking means is not limited to the brush body 80. For example, the powder conveyed by the protrusion 29 may be removed as felt cloth or the like.
The blocking means as described above can remove not only the drug powder conveyed by the protrusion 29 but also the powder adhering to the periphery of the tablet 5 when it comes into contact with the blocking means.

The side view which expanded a part of chemical | medical agent packaging apparatus which shows embodiment of this invention. Similarly, a perspective view of a state in which a large number of medicine containers are mounted on the housing of the medicine packaging device Similarly, a single perspective view of a medicine container Similarly, a side view of a rotor as a stirring member Single perspective view from the bottom of the rotor Similarly, a partially enlarged sectional view of the medicine container Similarly, a partially enlarged view of FIG. Similarly, a perspective longitudinal sectional view at the center in the circumferential direction of the medicine container Similarly bottom view of drug container AA line sectional view in FIG. FIG. 7 is a sectional view taken along line BB in FIG. Similarly, a partially enlarged view of FIG. The perspective view from the upper one side of the state which showed other embodiments and abbreviate | omitted the rotor and a part and represented the upper surface of the bottom wall board Similarly perspective view from the other side above Similarly, perspective view of the powder-removal body from the upper side Similarly, a perspective view of the powder-removal body from the other upper side

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Drug packaging apparatus, 2 ... Housing, 3 ... Support body, 4 ... Drug storage container, 5 ... Tablet, 6 ... Container main body, 8 ... Rotor, 12 ... Bottom wall part, 13 ... Bottom wall board, 13a ... Upper surface , 13b ... lower surface, 14 ... medicine container, 17 ... cylindrical part, 18 ... upper container part, 22 ... medicine discharge opening, 24 ... medicine container, 29 ... projection, 32a ... bottom surface, 32A ... disk part, 67 ... Guide recess, 68 ... Guide surface

Claims (6)

A rotor having a bottom surface facing the top surface of the bottom wall portion and rotating around the vertical axis is disposed below the medicine container portion and above the bottom wall portion of the medicine container portion. A medicine container configured to form a medicine containing path to be fed and to drop and supply the medicine contained in the medicine containing path from a medicine discharge opening formed in the bottom wall portion by rotation of the rotor. ,
A medicine container, wherein a protrusion is provided on a bottom surface of the rotor. A rotor having a bottom surface facing the top surface of the bottom wall portion and rotating around the vertical axis is disposed below the medicine container portion and above the bottom wall portion of the medicine container portion. A medicine container configured to form a medicine containing path to be fed and to drop and supply the medicine contained in the medicine containing path from a medicine discharge opening formed in the bottom wall portion by rotation of the rotor. ,
  A drug container, wherein a protrusion is provided on the upper surface of the bottom wall. Projections on the bottom surface of the rotor, the drug container according to claim 1, characterized in that it is spaced circumferential direction of rotation of the rotor. In order to drop a predetermined number of drugs stored in the drug storage path from the drug discharge opening, a partition body is provided to partition the drugs that overlap in the vertical direction, and the protrusion is arranged at the same position as the drug storage path in the radial direction of the rotor The medicine container according to claim 1 or 3, wherein the medicine container is provided. Of the upper surface of the bottom wall portion of the outer periphery of the medicine discharge opening, at least on the downstream side in the rotation direction of the rotor, the guide recess having the inclined surface that is inclined upward toward the downstream side in the rotation direction continuously to the medicine discharge opening. The medicine container according to any one of claims 1, 3, and 4, wherein the protrusion is formed so that the protrusion can be guided by the guide surface.   The medicine container according to any one of claims 1 to 5, further comprising a spring that urges the rotor upward with respect to the upper surface of the bottom wall portion.

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