WO2017126670A1 - 錠剤カセット - Google Patents
錠剤カセット Download PDFInfo
- Publication number
- WO2017126670A1 WO2017126670A1 PCT/JP2017/001960 JP2017001960W WO2017126670A1 WO 2017126670 A1 WO2017126670 A1 WO 2017126670A1 JP 2017001960 W JP2017001960 W JP 2017001960W WO 2017126670 A1 WO2017126670 A1 WO 2017126670A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rotary shaft
- hollow rotary
- tablet
- hollow
- shaft
- Prior art date
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F11/00—Coin-freed apparatus for dispensing, or the like, discrete articles
- G07F11/02—Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines
- G07F11/04—Coin-freed apparatus for dispensing, or the like, discrete articles from non-movable magazines in which magazines the articles are stored one vertically above the other
- G07F11/16—Delivery means
- G07F11/24—Rotary or oscillatory members
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J7/00—Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
- A61J7/0076—Medicament distribution means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J7/00—Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
- A61J7/0007—Pill breaking or crushing devices
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/0092—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for assembling and dispensing of pharmaceutical articles
Definitions
- This invention relates to a tablet cassette that contributes to the automation of tablet supply in dispensing performed in hospitals, pharmacies, and the like.
- FIG. 9A is a perspective view of a state in which the tablet cassette 10 is removed from the base 20, and FIG. 9B is a perspective view of a state in which the tablet cassette 10 is mounted on the base 20.
- 10A is a vertical perspective view showing the inside of the tablet cassette 10
- FIG. 10B is a vertical perspective view of the tablet cassette 10 and the base 20 that is mounted from above and supports the tablet cassette 10 from below.
- FIG. 11A is a longitudinal perspective view of the rotor 16
- FIG. 11B is a perspective view of a process of connecting the rotor 16 and the motor unit 21.
- the tablet cassette 10 (see FIGS. 9 and 10) includes a fitting frame 11 for stabilizing the horizontal positioning and posture when mounted on the base 20 (supporting portion), and a vertical positioning when mounted on the base 20.
- a tablet container 10A comprising a container upper part 14 constituting a part of the medicine storage space S for storing tablets and extending the medicine storage space above the container lower part 13, and a lid 15 opened and closed when the tablets are refilled. have.
- the tablet cassette 10 is also provided with a rotor 16 that is housed in the container lower part 13 so as to be rotatable in the container lower part 13.
- the rotor 16 extends directly downward (for example, see Patent Documents 1 to 3) from the rotational center 16A and the axial center position of the rotating body 16A or indirectly through a gear or the like (for example, see Patent Document 4).
- a hollow rotary shaft 17 (driven shaft) protruding from the bottom surface of the lower portion 13 is provided.
- the rotor 16 includes a hollow rotating shaft 17 that extends in a direction orthogonal to the bottom wall portion 12 and opens to the opposite side of the tablet housing space S, and a rotating body 16A.
- the rotating body 16A rotates around the axis together with the hollow rotating shaft 17 in the tablet housing space S of the tablet container 10A.
- the rotating body 16A has a plurality of tablet storage portions 16B, each containing a tablet (not shown) at the periphery thereof and allowing the tablets to pass through the discharge port H.
- the plurality of tablet storage portions 16B are formed at predetermined intervals in the circumferential direction.
- the blade 16C is integrally provided (see, for example, Patent Document 1).
- the base 20 (see FIGS. 9 and 10) is fixed in a row on the shelf of the storage part of the tablet packaging machine (see, for example, Patent Document 1) or fixed to the top plate part of the tablet dividing device (see, for example, Patent).
- Reference 2 receives power supply and control necessary for operation from the mounting destination.
- the base 20 includes a drive shaft 24 having an outer tooth portion 25 at the upper end portion, and a motor portion 21 (drive portion) that rotates the drive shaft 24 according to control, and holds the motor portion 21 at an installation destination.
- a substantially horizontal plate-shaped support portion 22 (seat portion) to be fixed, and a fitting portion 23 (seat portion) that is formed on the upper side surface of the support portion 22 and can be fitted into the fitting frame 11 are provided. .
- the base 20 supports it from below and transmits the rotational force of the motor unit 21 to the tablet cassette 10.
- the rotation transmission mechanism between the tablet cassette 10 and the base 20 is a hollow rotation shaft 17 that is a part of the tablet cassette 10 (accommodating part side transmission mechanism) and a part of the base 20 (drive part side transmission mechanism). It consists of a certain drive shaft 24.
- the hollow rotary shaft 17 is formed with a bottomed hole 17a having a lower end opening, an inner tooth portion 18 is formed in a lower portion of the bottomed hole 17a, and a lower end opening portion of the inner tooth portion 18 is formed in the lower end opening portion.
- a first tapered surface 19 is formed.
- the drive shaft 24 of the motor portion 21 has an outer tooth portion 25 formed on the upper portion, and a second tapered surface 26 formed on the upper end portion of the outer tooth portion 25.
- the fitting frame 11 and the fitting portion 23 are fitted (see FIG. 10B), and the hollow rotation is performed.
- the shaft 17 and the drive shaft 24 are fitted (see FIG. 11B).
- the first tapered surface 19 of the hollow rotary shaft 17 and the second tapered surface 26 of the drive shaft 24 are loosely fitted at the beginning.
- the inner tooth portion 18 of the hollow rotary shaft 17 and the outer tooth portion 25 of the drive shaft 24 mesh (for example, refer to Patent Documents 1 to 3).
- the transmission mechanism configured with the base 20 having a drive unit is the so-called axially fitting rotational transmission mechanism as described above, it can be attached to and detached from the base 20 and other cassettes. If the tooth positions of the inner tooth portion 18 and the outer tooth portion 25 are deviated after the replacement, etc., the hollow rotating shaft 17 (rotor 16A of the rotor 16) rotates when the cassette is mounted due to the deviation. However, an undesired discharge operation outside the control may be caused. Therefore, not only measures to suppress or mitigate the effects of the above-described deviation, but also measures have been devised that do not cause uncontrolled shaft rotation during fitting and meshing, and measures are taken as necessary (for example, patent documents) 3).
- the countermeasure mainly focuses on mounting a cassette that is likely to cause undesired tablet discharge. Further, both the rotation shaft (driven portion) of the tablet cassette 10 and the drive shaft 24 of the base 20 are modified. Met. For this reason, the tablet cassette 10 with countermeasures can be used, but is limited to a packaging machine equipped with the base 20 with corresponding countermeasures, so it cannot be easily applied to an existing packaging machine or the like. . Further, when handling the tablet cassette 10 removed from the base 20, for example, when the tablet cassette 10 is carried or when the tablet cassette 10 is replenished with tablets, the unlocked hollow rotary shaft 17 and the rotor 16 are prevented from rotating. Had to be handled with care.
- An object of the present invention is to provide a tablet cassette capable of preventing the rotation of the hollow rotating shaft when the base is not mounted.
- the tablet cassette targeted by the present invention includes a tablet container, a rotor, and a lock mechanism.
- the tablet container includes a tablet storage space for storing a plurality of tablets at random, and a discharge port for dropping a plurality of tablets in the tablet storage space one by one in the bottom wall portion.
- the rotor has a hollow rotating shaft that extends in a direction perpendicular to the bottom wall portion and opens to the opposite side of the tablet containing space, and a center of the axis together with the hollow rotating shaft in the tablet containing space of the tablet container.
- a plurality of tablet storage portions that rotate and further store tablets one by one and allow the tablets to pass through the discharge port are provided with a rotating body provided at the peripheral edge with a predetermined interval in the circumferential direction.
- the rotor is rotated by rotating the motor while the drive shaft that is rotated by the motor is fitted to the hollow rotating shaft.
- the lock mechanism prevents rotation of the hollow rotary shaft when the hollow rotary shaft is pulled out of the drive shaft, and when the hollow rotary shaft is fitted to the drive shaft, the hollow rotary shaft is moved together with the drive shaft. If the lock mechanism is provided as in the present invention, the movement of the hollow rotating shaft is restrained when the tablet cassette is not attached to the base, that is, when the tablet cassette is detached from the base. Accordingly, the rotation of the rotor with respect to the tablet housing space is stopped, so that the rotation of the hollow rotating shaft and the rotating body is prevented independently.
- the drive shaft is fitted into the hollow rotary shaft, the shaft of the hollow rotary shaft (or rotor) can be rotated, and the tablets can be sequentially discharged from the tablet storage space. .
- the original function required for the tablet cassette is maintained.
- An example of the locking mechanism is, for example, provided on the hollow rotary shaft, with respect to the hollow rotary shaft centering on a slit extending in the axial direction through the hollow rotary shaft in the radial direction and an oscillation fulcrum provided in the slit.
- a rocking member having a passive portion located in the inner space of the hollow rotating shaft and a locking portion located outside the hollow rotating shaft, and a bottom wall portion of the tablet container.
- an urging member to be urged.
- the swinging member swings in one direction by the biasing force of the biasing member, and the locking portion is locked to the locked member.
- the passive portion is pushed radially outward from the slit by the drive shaft, and the swinging member swings in the other direction, so that the locking portion and the engaged portion are engaged. The locking with the stop is released.
- the locking portion of the swinging member becomes the locked portion by the biasing of the biasing member. Since they are brought into contact with each other and locked, the movement of the swinging member with respect to the locked portion and thus the movement of the hollow rotating shaft is restrained. As a result, the rotation of the rotor with respect to the tablet-accommodating space is stopped along with this restraining, and the rotation of the hollow rotating shaft (or rotor) is prevented independently. Further, when this tablet cassette is mounted on the base, the drive shaft on the base side is fitted into the hollow rotary shaft.
- the passive portion of the swing member is pushed out of the slit by the drive shaft.
- the member swings against the biasing force, and accordingly, the locking portion of the swinging member is detached from the locked portion.
- the shaft of the hollow rotary shaft (or rotor) can be rotated, and the tablets can be discharged sequentially from the tablet storage space.
- a slit is formed in the hollow rotary shaft, and the swing fulcrum and the central portion of the swing member are arranged in the slit, and the locked portion that goes around the hollow rotary shaft is provided at the bottom of the tablet housing space.
- a slit provided in the hollow rotary shaft extending in the axial direction through the hollow rotary shaft in the radial direction, and provided in the slit so as to be linearly movable, is provided in the internal space of the hollow rotary shaft.
- a linear moving member in which a passive part is located and a locking part is located outside the hollow rotary shaft, and a locked part that is provided on the bottom wall of the tablet container and surrounds the periphery of the hollow rotary shaft away from the hollow rotary shaft
- an urging member that urges the linear movement member so that the locking portion advances toward the locked portion and the passive portion linearly moves toward the bottom wall portion.
- the locking of the locking part and the locked part can be configured by fitting one or more convex parts and one or more concave parts.
- a plurality of concave portions are provided at predetermined intervals in the circumferential direction in the locked portion, and one or more convex portions are provided in the locking portion.
- the concave portion it is preferable that a plurality of convex portions are provided in the locked portion with a predetermined interval in the circumferential direction.
- the locked portion has an annular wall surface extending along the hollow rotation shaft, and a plurality of concave portions or a plurality of convex portions are provided on the annular wall surface so as to extend along the hollow rotation shaft,
- the locking portion is preferably provided with one or more convex portions or one or more concave portions so as not to hinder the swinging of the swinging member.
- a plurality of grooves extending in the axial direction are formed at regular intervals in the circumferential direction in the portion excluding the portion where the slit of the inner peripheral portion of the hollow rotating shaft is formed, and the axial line is formed in the outer peripheral portion of the drive shaft. It is preferable that the plurality of projecting portions extending in the direction and fitting into the plurality of grooves extend at regular intervals in the circumferential direction.
- An annular recess that opens toward the bottom wall and surrounds the periphery of the hollow rotary shaft is formed in a portion facing the bottom wall of the rotating body. It is preferred that all or part of it is stored. In this way, even if the desired lock mechanism added additionally includes the locked portion and the locking portion, most of the locked portion and the locking portion are accommodated in the annular recess of the rotating body. As a result, the lock housing is built in the cassette without sacrificing the tablet storage space in the tablet container, and without enlarging the size of other members, so that the entire cassette becomes compact. ing.
- the biasing member is preferably housed inside the hollow rotary shaft. With such a structure, the drive shaft and the hollow rotary shaft can be reliably connected. Further, when the urging member is housed inside the hollow rotating shaft, the space occupied by the urging member is not required and the size of the other members is not increased, so that the entire cassette becomes compact.
- a first taper surface is formed at the inner peripheral corner of the end of the hollow rotary shaft on the opening side, and a second taper surface is formed at the outer peripheral corner of the tip of the drive shaft. If so, determine the dimensions as follows: That is, the distance between the passive start position of the passive portion and the opening of the hollow rotary shaft in the internal space of the hollow rotary shaft is such that the axial length of the first taper surface of the hollow rotary shaft and the second taper of the drive shaft. It is larger than the sum of the axial lengths of the surfaces, and the passive start position is closer to the inner space side than the opening.
- the fitting between the hollow rotary shaft and the drive shaft is smooth. Will be able to do.
- the hollow rotary shaft and the drive shaft are not hollow until the axial length of the first tapered surface of the hollow rotary shaft and the axial length of the second tapered surface at the tip of the drive shaft are longer. A rotational transmission state between the rotation shaft and the drive shaft is established.
- the tablet cassette of the present invention further imposes further requirements on the state of support of the swing member by the hollow rotating shaft. That is, the distance between the passive start position of the passive portion of the swinging member in the hollow rotating shaft and the opening of the hollow rotating shaft is made larger than the above sum. Strictly speaking, the passive start position relating to the portion of the passive portion of the swinging member that the drive shaft at the time of insertion first contacts is larger than the above sum as viewed from the opening end of the hollow rotation shaft, and the hollow rotation shaft Close to the interior space side. For this reason, when the hollow rotary shaft and the drive shaft are fitted, first, the first tapered surface and the second tapered surface begin to fit smoothly but in a transmission failure state.
- (A) is a vertical perspective view of a tablet cassette in a free state
- (B) is a vertical perspective view of a base and a tablet cassette attached thereto.
- (A) is a vertical perspective view of the tablet cassette in a free state excluding the lid and the upper part of the container
- (B) is a vertical perspective view with the base mounted.
- (A) is a longitudinal perspective view of the rotor and the locking mechanism
- (B) is an enlarged cross-sectional view of a chamfered portion of the rotor rotary shaft and the motor shaft drive shaft
- (C) is a motor portion on the rotor rotary shaft. It is a vertical perspective view of the place which engaged the drive shaft. It is a bottom view of a rotor.
- (A) And (B) is the perspective view and bottom view of the assembly which integrated the rocking
- (A) is a longitudinal sectional view of the assembly, and (B) is an exploded perspective view of the assembly. It is a perspective view which combined the energizing member with the rocking member. It is a conceptual diagram of a structure of another locking mechanism.
- (A) is the perspective view of the state which removed, (B) is the perspective view of a mounting state.
- (A) is a vertical perspective view of the tablet cassette, (B) is a vertical perspective view of the tablet cassette with the base mounted.
- (A) is a longitudinal perspective view of the rotor, (B) is a perspective view in which the motor unit is engaged with it.
- FIG. 1 to FIG. 3 the same components as those shown in FIG. 9 to FIG. 11 are denoted by the same reference numerals, and the components having different configurations are indicated by the reference numerals shown in FIG. 9 to FIG. A symbol with a dash is added.
- FIG. 1 to FIG. 3 the same components as those shown in FIG. 9 to FIG. 11 are denoted by the same reference numerals, and the components having different configurations are indicated by the reference numerals shown in FIG. 9 to FIG. A symbol with a dash is added.
- it demonstrates in detail centering on difference with the past.
- FIG. 1A is a longitudinal perspective view showing the inside of a tablet cassette 10 ′ in a free state
- FIG. 1B is a longitudinal perspective view of a tablet cassette 10 ′ and a base 20 that is mounted from above and supports it from below.
- 2A is a longitudinal perspective view showing the inside of the tablet cassette 10 ′ in a free state in which the lid 15 and the container upper portion 14 are removed from the tablet cassette 10 ′
- FIG. 2B shows the tablet cassette 10 ′.
- It is a vertical perspective view of the base 20 in which the tablet cassette 10 'is mounted from above and supports the tablet cassette 10' from below.
- FIG. 3A is a longitudinal perspective view of the rotor 16 ′ and the locking mechanisms 60 to 80
- FIG. 3B is a first taper surface of the internal tooth portion 18 ′ of the hollow rotating shaft 17 ′ of the rotor 16 ′.
- 19 ′ an enlarged cross-sectional view of the tapered portion 26 of the external tooth portion 25 of the drive shaft 24 of the motor portion 21 and the passive portion 71 of the swing member 70
- FIG. 3C is the hollow rotary shaft 17 ′ of the rotor 16 ′.
- FIG. 6 is a longitudinal perspective view of the inner tooth portion 18 ′ engaged with the outer tooth portion 25 of the drive shaft 24 of the motor portion 21.
- FIG. 4 is a bottom view of the rotor 16 ′ viewed from the opening side of the hollow rotary shaft 17 ′.
- the external appearance of the tablet cassette 10 ′ is the same as the external appearance of the above-described tablet cassette 10 shown in FIGS.
- the tablet cassette 10 ' (see FIGS. 1 to 3) includes a fitting frame 11, a bottom wall portion 12, a container lower portion 13, a container upper portion 14 and a lid 15 which the conventional tablet cassette 10 has, A rotor 16 ′ having a new structure obtained by modifying the rotor 16 of the tablet cassette 10 and newly added lock mechanisms 60 to 80 are provided.
- a lock mechanism storage space 51 is formed so as to surround the base portion of the hollow rotary shaft 17 '.
- a part of the peripheral wall portion 17 ′ A of the hollow rotary shaft 17 ′ is cut out in the axial direction to form a slit 52, and a pair of swing fulcrums 53 projecting into the slit 52 are provided. Is a point.
- the lock mechanism storage space 51 is an annular space as shown in FIGS.
- the lock mechanism storage space 51 is an annular recess that opens toward the bottom wall portion 12 and surrounds the periphery of the hollow rotary shaft 17 ′.
- the lock mechanism storage space 51 formed of the annular recess can accommodate most of the locked portions 60 (to be described later) of the lock mechanisms 60 to 80 and the locking portion 72 of the swing member 70.
- the pair of swing fulcrums 53 are formed by projecting portions that are integrally provided on the pair of opposing wall portions of the slit 52 and project toward each other from the opposing wall portions.
- the pair of rocking fulcrums 53 support the rocking member 70 so as to be rockable at the rocking center of the rocking member 70 described later among the lock mechanisms 60 to 80.
- the swing member 70 is formed with a pair of recesses (not shown) into which the pair of swing support points 53 are fitted.
- the locking mechanisms 60 to 80 are provided with a locked portion in order to prevent the rotor 16 'and the hollow rotary shaft 17' from rotating when the tablet cassette 10 'is detached from the base 20 and in a free state. 60, a swinging member 70, and an urging member 80.
- the locked portion 60 is made of an annular member having an inner diameter larger than the outer diameter of the hollow rotating shaft 17 ′, and is separated from the hollow rotating shaft 17 ′ and goes around the hollow rotating shaft 17 ′. ) Is fixed to the upper surface of the bottom wall portion 12 or provided integrally with the bottom wall portion 12, and substantially entirely accommodates in the lock mechanism storage space 51 described above.
- An inner tooth portion 61 that can mesh with or engage with the locking portion 72 of the swinging member 70 is formed over the entire circumference of the locked portion 60.
- the internal tooth portion 61 has a shape in which a plurality of convex portions and a plurality of concave portions appear alternately in the circumferential direction.
- the oscillating member 70 is supported by the oscillating fulcrum 53 in the slit 52 described above and can oscillate.
- the passive member 71 oscillating near the lower end of the hollow rotary shaft 17 ′ and the hollow rotary shaft 17.
- a locking portion 72 that swings in the vicinity of the internal tooth portion 61 of the locked portion 60, and a working portion of the biasing member 80 (a fixed portion at one end of a coil spring as the biasing member 80). It has.
- the locking portion 72 is formed with one or more convex portions or one or more concave portions that engage with one or more concave portions or one or more convex portions constituting the internal tooth portion 61 provided in the locked portion 60. ing.
- the passive portion 71 and the locking portion 72 are separated on both sides of the swing fulcrum 53, and the locking portion 72 and its root portion are housed in the lock mechanism storage space 51. And in the state where the passive part 71 has entered the bottomed hole 17'a of the hollow rotary shaft 17 ', The locking part 72 is locked to the inner tooth part 61 to prevent the shaft rotation of the hollow rotary shaft 17 ′ (or the rotor 16 ′). On the other hand, in a state where the passive portion 71 enters the slit 52 from the internal space of the hollow rotary shaft 17 ′, the locking portion 72 is separated from the inner tooth portion 61 and the hollow rotary shaft 17 ′ (or the rotor 16 ′). ) Shaft rotation is allowed.
- the passive portion 71 has a bottomed position at the bottom of the hole 17'a of the hollow rotating shaft 17 'or when entering the inner space.
- the length of the axial position measured from the lower end opening of the hole 17'a, that is, the distance to the passive start position A is the axis of the first tapered surface 19 'of the bottomed hole 17'a of the hollow rotary shaft 17'.
- the hollow rotary shaft 17 ′ and the drive shaft 24 have a length larger than the sum (B + C) of the direction length B and the axial length C of the second tapered surface 26 at the tip of the outer tooth portion 25 of the drive shaft 24. The shape and position are determined.
- the urging member 80 (see FIGS. 3A and 3B) is made of an elastic member such as a coil spring.
- the biasing member 80 is housed in the bottomed hole 17 ′ of the hollow rotary shaft 17 ′ and is located near the inner bottom (upper end in the drawing) of the bottomed hole 17 a, and the oscillating member 70 is swung. Of the moving parts, it acts on the part that is always in the bottomed hole 17a, and the locking part 72 of the swinging member 70 moves away from the hollow rotary shaft 17 'to the internal tooth part 61 of the locked part 60. The oscillating member 70 is urged so as to move forward.
- the passive portion 71 and the locking portion 72 are separated on both sides of the swing fulcrum 53 as described above, the passive portion 71 enters the bottomed hole 17'a of the hollow rotary shaft 17 '. Thus, the swing member 70 is urged.
- the tablet cassette 10' In order to use the tablet cassette 10 ', the tablet cassette 10' must first be replenished with tablets. Therefore, the tablet cassette 10 'is removed from the base 20 to be in a free state (FIG. 1 (A), FIG. 2 (A) 3), in that state, the lid 15 is opened, an appropriate amount of tablets are put into the container upper part 14 (tablet storage space), and then the lid 15 is closed to complete the replenishment operation. Thereafter, the tablet cassette 10 'containing the tablets is moved immediately above the base 20 (see FIG. 3B). Until then, the tablet cassette 10 ′ in the free state is placed in a free state in which the passive portion 71 of the swing member 70 does not come into contact.
- the locking portion 72 of the swinging member 70 is urged by the urging member 80 and continues to be locked to the inner tooth portion 61 of the locked portion 60, the hollow rotary shaft 17 'and the rotor 16' are not at all. The shaft does not rotate. As a result, the tablet is not undesirably discharged from the discharge port of the tablet cassette 10 '.
- the fitting frame 11 of the tablet cassette 10 ′ is fitted with the insertion portion 23 of the base 20, so that both the horizontal direction and the horizontal direction 10 ′, 20
- the rough alignment is performed, and the first tapered surface 19 ′ of the lower end opening of the bottomed hole 17 a of the hollow rotating shaft 17 ′ of the tablet cassette 10 ′ and the upper end of the external tooth portion 25 of the drive shaft 24 of the base 20 are arranged.
- the second tapered surface 26 comes into contact (or fits). The fitting at the contact stage between the tapered surfaces is smoothly performed in the loose fitting state.
- the drive shaft 24 of the base 20 has not yet reached the passive portion 71 of the swinging member 70 of the tablet cassette 10 ', and the shaft rotation of the hollow rotary shaft 17' and the rotor 16 'is locked mechanism 60-80. Therefore, if there is a shift in the tooth position between the inner tooth portion 18 ′ of the tablet cassette 10 ′ and the outer tooth portion 25 of the base 20, the drive shaft 24 of the base 20 fits within a half tooth. The shift is absorbed by rotating the shaft in response to the component force.
- the hollow rotating shaft 17 ′ of the tablet cassette 10 ′ and the drive shaft 24 of the base 20 are connected.
- the drive shaft 24 of the base 20 comes into contact with and pushes the passive portion 71 of the swinging member 70 of the tablet cassette 10 ′. Therefore, the swinging member 70 swings in such a direction that the passive portion 71 that has received the push comes out of the slit 52 of the hollow rotary shaft 17 ′, and the locking portion 72 of the swinging member 70 is covered by this swinging. Since the inner portion 61 of the locking portion 60 is disengaged, the locking of the locked portion 60 and the swing member 70 is released.
- the tablet cassette 10 ' whose role of the lock mechanisms 60 to 80 is released in association with the operation of mounting the tablet cassette 10' on the base 20 is the hollow rotating shaft 17 '(or the rotating body 16'A of the rotor 16').
- the tablet cassette 10 ′ after being mounted on the base 20 operates in the same manner as the conventional product (10). That is, each time the base 20 operates the motor in accordance with the control to rotate the drive shaft 24, the hollow rotary shaft 17 'rotates, and the rotor 16' rotates accordingly.
- the tablets fall one by one from the outlet H of the container lower part 13.
- the number of teeth in the inner tooth portion 18 ′ of the hollow rotating shaft 17 ′ of the tablet cassette 10 ′ and the outer tooth portion 25 of the drive shaft 24 of the base 20 is large. As long as it corresponds, a small number may be sufficient (for example, refer patent document 3).
- the hollow rotary shaft 17 'and the rotor 16'A of the rotor 16' are directly connected.
- the hollow rotary shaft 17 'and the rotor 16'A of the rotor 16' are connected via a connecting structure. They may be separated from each other so as to be linked (see, for example, Patent Document 4).
- FIGS. 1A and 5B are a perspective view and a bottom view of the assembly in which the swing member is incorporated in the rotor
- FIG. 6A is a longitudinal sectional view of the assembly
- FIG. 6B is an assembly
- FIG. 7 is a perspective view in which an urging member is combined with a swing member.
- the main body of the swing member 70 ′ includes a pair of plate-like portions 70 ′ A that face each other in the width direction.
- the pair of shaft portions 73 ′ provided outside the pair of plate-like portions 70 ′ A are used as opposed inner wall portions of the slits 52 of the hollow rotary shaft 17 ′.
- the pair of plate-like portions 70 ′ A are deformed so as to be close to each other when they are fitted into the pair of recesses serving as the swing fulcrum 53 ′ provided on the pair, the pair of shaft portions 73 ′ can be easily moved to the swing fulcrum. It can be fitted into the concave portion constituting 53 '.
- the coil spring of the urging member 80 ' is arranged in a direction orthogonal to the axis of the hollow rotary shaft 17'.
- One end 80'A of the biasing member 80 ' is engaged with the swing member 70', and the other end 80'B is in contact with the inner wall surface of the bottomed hole 17'a of the hollow rotary shaft 17 '.
- the engaging portion 72 ′ of the swing member 70 ′ of the present example is formed with three convex portions 72′A and two concave portions 72′B extending in the axial direction.
- the engagement between the engaging portion 72 ′ and the inner tooth portion 61 of the locked portion 60 can be made more reliable.
- FIG. 8 is a conceptual diagram of a configuration of another lock mechanism employed in the second embodiment.
- a linear moving member 70 ′′ is provided on the hollow rotary shaft 17 ′′ and is combined with a slit 52 ′ extending in the radial direction through the hollow rotary shaft 17 ′′ in the radial direction.
- the moving member 70 ′′ is provided so as to be linearly movable in the slit 52 ′, the passive portion 71 ′′ is located in the internal space of the hollow rotary shaft, and the engaging portion 72 ′′ is located outside the hollow rotary shaft 17 ′′.
- the locked portion 60 provided on the bottom wall portion of the tablet container is separated from the hollow rotary shaft 17 ′′ and surrounds the hollow rotary shaft 17 ′′.
- the biasing member 80 ′ includes the locking portion 72 ′′.
- the coil spring is arranged to urge the linear moving member 70 ′′ so that the passive portion 71 ′′ linearly moves toward the bottom wall 12 while moving toward the locked portion 60.
- the linear moving member 70 ′′ moves to the bottom wall portion 12 side by the biasing force of the biasing member 80 ′, and the locking portion 72 ′′ is locked.
- the passive portion 71 ′′ is pushed by the drive shaft 24 to move away from the bottom wall 12 in the slit. 70 ′′ moves to release the locking between the locking portion 72 ′′ and the locked portion 60.
- the structure of the lock mechanism is to prevent the rotation of the hollow rotation shaft when the hollow rotation shaft is pulled out of the drive shaft, and when the hollow rotation shaft is fitted to the drive shaft, the hollow rotation shaft is connected to the drive shaft.
- structures other than those of the first and second embodiments may be used as long as they are configured to allow rotation together.
- the tablet cassette of the present invention can be applied not only to the above-described tablet packaging machine and tablet splitting device, but also to other dispensing machines such as a bottling machine, as long as it is a device equipped with a drive unit for an attachable tablet cassette.
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Abstract
Description
本発明のように、ロック機構を設けると、錠剤カセットが、ベース非装着状態すなわちベースから取り外された自由状態では、中空回転軸の動きが制止され、それに随伴してロータの錠剤収容空間に対する回転が止められるので、単独で中空回転軸および回転体の回転が阻止される。また、この錠剤カセットがベースに装着されると、駆動軸が中空回転軸に嵌入され、中空回転軸(またはロータ)の軸回転が可能になって錠剤収容空間から錠剤を逐次排出することができる。その結果、錠剤カセットに必要な本来の機能は維持される。
本発明の錠剤カセットの実施例1について、その具体的な構成を、図面を引用して説明する。図1(A)は、自由状態の錠剤カセット10´の内部を示す縦断斜視図、(B)が錠剤カセット10´とそれを上から装着されて下から支持するベース20との縦断斜視図である。また、図2(A)は、錠剤カセット10´から蓋15と容器上部14とを取り外した自由状態の錠剤カセット10´の内部を示す縦断斜視図、図2(B)が錠剤カセット10´と錠剤カセット10´が上から装着されて錠剤カセット10´を下から支持するベース20の縦断斜視図である。
係止部72が内歯部61に係止されて、中空回転軸17´(またはロータ16´)の軸回転を阻止するようになっている。これに対し、受動部71が中空回転軸17´の内部空間からスリット52内に入りこんでいる状態では、係止部72が内歯部61から離れて、中空回転軸17´(またはロータ16´)の軸回転を許容する。
上記実施例では、錠剤カセット10´の中空回転軸17´の内歯部18´とベース20の駆動軸24の外歯部25とにおける歯数が多数であったが、それらの歯数は、対応し合っていれば、少数であっても良い(例えば特許文献3参照)。
上記実施例1の変形例を図5乃至図7を用いて説明する。この変形例では、揺動部材70´の形状と付勢部材80´の形状が、実施例1の揺動部材70とは異なる。図5(A)及び(B)は、揺動部材をロータに組み込んだアセンブリの斜視図と底面図であり、図6(A)はアセンブリの縦断面図であり、図6(B)はアセンブリの分解斜視図であり、図7は揺動部材に付勢部材を組み合わせた斜視図である。特に図6に示されるように、揺動部材70´の本体は幅方向に対向する一対の板状部70´Aを備えている。一対の板状部70´Aの間には隙間があるため、一対の板状部70´Aの外側に設けた一対の軸部73´を、中空回転軸17´のスリット52の対向内壁部に設けた揺動支点53´となる一対の凹部に嵌合させる際に、一対の板状部70´Aを互いに近付けるように変形させれば、簡単に一対の軸部73´を揺動支点53´を構成する凹部に嵌合することができる。
図8は、実施例2で採用する別のロック機構の構成の概念図である。このロック機構では、揺動部材では直線移動部材70”が中空回転軸17”に設けられて中空回転軸17”を径方向に貫通して軸線方向に延びるスリット52´に組み合わされている。直線移動部材70”は、スリット52´内を直線移動可能に設けられ、中空回転軸の内部空間に受動部71”が位置し中空回転軸17”の外部に係止部72”が位置する。そして錠剤容器の底壁部に設けられた被係止部60は、中空回転軸17”から離れて中空回転軸17”の周囲を囲んでいる。付勢部材80´は、係止部72”が被係止部60に向かって進むとともに受動部71”が底壁部12側に直線移動するように直線移動部材70”を付勢するように配置されたコイルバネである。
11 嵌合枠
12 底板部
13 容器下部(錠剤収容空間)
14 容器上部(錠剤収容空間)
15 蓋
16 ロータ
17 中空回転軸
17´a 有底孔
18 内歯部
19 第1のテーパ面
20 ベース(支持部)
21 モータ部(駆動部)
22 支承部(座部)
23 嵌入部(座部)
24 駆動軸
25 外歯部
26 第2のテーパ面
10´ 錠剤カセット
50 ロータ(ロータ)
51 ロック機構収納空間
52 スリット(切抜)
53 揺動支点
60 被係止部
61 内歯部(係止部)
70 揺動部材
71 受動部
72 係止部
80 付勢部材
Claims (9)
- 複数の錠剤をランダムに収容する錠剤収容空間と、前記錠剤収容空間内の前記複数の錠剤を1錠ずつ落下させる排出口を底壁部に備えた錠剤容器と、
前記底壁部と直交する方向に軸線が延び且つ前記錠剤収容空間とは反対側に開口する中空回転軸と、前記錠剤容器の前記錠剤収容空間内において前記中空回転軸と一緒に前記軸線を中心にして回転し、さらに周縁部に前記錠剤を一つずつ収容して前記排出口に前記錠剤を通過させうる複数の錠剤収納部が周方向に所定の間隔をあけて設けられた回転体を備えたロータとを備え、
前記中空回転軸にモータにより回転する駆動軸が嵌合された状態で前記モータを回転させることにより、前記ロータが回転状態となり、
前記中空回転軸が前記駆動軸から抜かれた状態になると、前記中空回転軸の回転を阻止し、前記中空回転軸が前記駆動軸に嵌合された状態になると、前記中空回転軸が前記駆動軸と一緒に回転することを許容するように構成されたロック機構を更に備えたことを特徴とする錠剤カセット。 - 前記ロック機構は、
前記中空回転軸に設けられ、前記中空回転軸を径方向に貫通して軸線方向に延びるスリットと、
前記スリット内に設けられた揺動支点を中心にして前記中空回転軸に対して揺動可能に支持されており且つ前記中空回転軸の内部空間に受動部が位置し前記中空回転軸の外部に係止部が位置する揺動部材と、
前記錠剤容器の底壁部に設けられていて前記中空回転軸から離れて前記中空回転軸の周囲を囲む被係止部と、
前記係止部が前記被係止部に向かって進むとともに前記受動部が前記中空回転軸内に進入するように前記揺動部材を付勢する付勢部材とを具備し、
前記中空回転軸が前記駆動軸から抜かれた状態になると、前記付勢部材の付勢力によって前記揺動部材が一方向に揺動して前記係止部が前記被係止部に係止され、前記中空回転軸が前記駆動軸に嵌合された状態になると、前記受動部が前記駆動軸によって前記スリット内から径方向外側に押されて前記揺動部材が他方向に揺動することにより前記係止部と前記被係止部との係止が解除されることを特徴とする請求項1に記載の錠剤カセット。 - 前記ロック機構は、
前記中空回転軸に設けられ、前記中空回転軸を径方向に貫通して軸線方向に延びるスリットと、
前記スリット内に前記スリット内を直線移動可能に設けられ、前記中空回転軸の内部空間に受動部が位置し前記中空回転軸の外部に係止部が位置する直線移動部材と、
前記錠剤容器の底壁部に設けられていて前記中空回転軸から離れて前記中空回転軸の周囲を囲む被係止部と、
前記係止部が前記被係止部に向かって進むとともに前記受動部が前記底壁部側に直線移動するように前記直線移動部材を付勢する付勢部材とを具備し、
前記中空回転軸が前記駆動軸から抜かれた状態になると、前記付勢部材の付勢力によって前記直線移動部材が前記底壁部側に移動して前記係止部が前記被係止部に係止され、前記中空回転軸が前記駆動軸に嵌合された状態になると、前記受動部が前記駆動軸によって押されて前記スリット内を前記底壁部から離れる方向に前記直線移動部材が移動することにより前記係止部と前記被係止部との係止が解除されることを特徴とする請求項1に記載の錠剤カセット。 - 前記係止部と前記被係止部との係止は、1以上の凸部と1以上の凹部の嵌合によって構成され、
前記係止部に前記1以上の凸部が設けられている場合には、前記被係止部に周方向に所定の間隔を開けて複数の前記凹部が設けられており、前記係止部に前記1以上の凹部が設けられている場合には、前記被係止部に周方向に所定の間隔を開けて複数の前記凸部が設けられている請求項2に記載の錠剤カセット。 - 前記被係止部は、前記中空回転軸に沿って延びる環状の壁面を有しており、
前記環状の壁面に前記複数の凹部または前記複数の凸部が前記中空回転軸に沿って延びるように設けられており、
前記係止部には、前記揺動部材の揺動を阻害しないように前記1以上の凸部または前記1以上の凹部が設けられている請求項4に記載の錠剤カセット。 - 前記中空回転軸の内周部の前記スリットが形成された部分を除く部分には、軸線方向に延びる複数の溝が周方向に一定間隔をあけて形成されており、
前記駆動軸の外周部には、軸線方向に延びて前記複数の溝に嵌る複数の突状部が周方向に一定の間隔をあけて延びている請求項2または3に記載の錠剤カセット。 - 前記回転体の前記底壁部と対向する部分には、前記底壁部に向かって開口し前記中空回転軸の周囲を囲む環状凹部が形成されており、
前記環状凹部内に前記被係止部と係止部の一部または全部が納まっていることを特徴とする請求項2または3に記載の錠剤カセット。 - 前記付勢部材が前記中空回転軸の前記内部空間内に納まっていることを特徴とする請求項2に記載された錠剤カセット。
- 前記中空回転軸の開口部側の端部の内周側角部には第1のテーパ面が形成されており、
前記駆動軸の先端の外周側角部には第2のテーパ面が形成されており、
前記中空回転軸の前記内部空間内における前記受動部の受動開始位置と開口部との間の距離が、前記中空回転軸の第1のテーパ面の軸方向長さと前記駆動軸の第2のテーパ面の軸方向長さとの和よりも大きく、前記受動開始位置は前記開口部よりも前記内部空間側に寄っていることを特徴とする請求項2に記載された錠剤カセット。
Priority Applications (4)
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AU2017209821A AU2017209821A1 (en) | 2016-01-21 | 2017-01-20 | Tablet cassette |
EP17741547.8A EP3406237A4 (en) | 2016-01-21 | 2017-01-20 | CASSETTE OF TABLETS |
CN201780007488.2A CN108472199B (zh) | 2016-01-21 | 2017-01-20 | 片剂盒 |
US16/071,655 US10441510B2 (en) | 2016-01-21 | 2017-01-20 | Tablet cassette |
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JP2016009939A JP6569909B2 (ja) | 2016-01-21 | 2016-01-21 | 錠剤カセット |
JP2016-009939 | 2016-01-21 |
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WO2017126670A1 true WO2017126670A1 (ja) | 2017-07-27 |
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US (1) | US10441510B2 (ja) |
EP (1) | EP3406237A4 (ja) |
JP (1) | JP6569909B2 (ja) |
CN (1) | CN108472199B (ja) |
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US20190021955A1 (en) | 2019-01-24 |
JP2017127532A (ja) | 2017-07-27 |
JP6569909B2 (ja) | 2019-09-04 |
EP3406237A4 (en) | 2019-07-17 |
EP3406237A1 (en) | 2018-11-28 |
US10441510B2 (en) | 2019-10-15 |
CN108472199B (zh) | 2021-06-15 |
CN108472199A (zh) | 2018-08-31 |
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