JP6741333B1 - A combination of a wound body and a medicine packaging device, a wound body, a core body, a mounting aid, a combination of a wound body and a mounting aid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combination of a wound body and a medicine packaging device, which can facilitate the work of mounting the wound body on the support shaft without significantly modifying the support shaft provided in the existing medicine packaging device. In a combination of a wound body and a medicine packaging device, the medicine packaging device includes a support shaft 31 that supports the wound body, and a core body 61 is attached to an outer periphery of the support shaft 31. The support shaft 31 and the core body 61 are integrally rotatable about the central axis line. When the core body 61 is mounted on the outer periphery of the support shaft 31, the core body 61 moves around the central axis line. In the support shaft 31, the second protrusion 317 has a smaller amount of protrusion than the first protrusion 313, and the second recess 616 of the core 61 is aligned with the first recess 615 of the core 61. The amount of dents is smaller than that. [Selection diagram] Figure 2

Description

The present invention provides a combination of a wound body in which a packaging material that is a strip-shaped sheet is wound, and a drug packaging device that packages a drug using the packaging material, the wound body, and the wound body. The present invention relates to a core that constitutes a revolving body, a mounting aid, and a combination of the winding body and the mounting aid.

There is a drug packaging device that packages a drug using a packaging material that is a strip-shaped sheet. Patent Document 1 describes an example of a packaging material supporting device provided in such a drug packaging device. In the configuration described in Patent Document 1, the support shaft (paper feeding drum) projects from the base (the “machine” in the description of Patent Document 1 and the same in parentheses below), and the support shaft is rotatable by the base. Supported by. A core body (core cylinder) is attached to the outer periphery of the support shaft. A packaging material (wrapping paper) is wound around the outer periphery of the core body to form a roll-shaped wound body. The medicine can be packaged in the packaging material that is sequentially pulled out from the wound body.

Japanese Utility Model Publication No. 56-44757

Here, in order to facilitate the work of inserting the winding body into the support shaft of the medicine packaging device, it is conceivable to use a winding body having a new configuration and modify the support shaft provided in the existing medicine packaging device. .. However, we would like to avoid major modification of the support shaft of existing drug packaging equipment.

Therefore, the present invention makes it possible to facilitate the work of mounting the winding body on the support shaft without significantly modifying the supporting shaft provided in the existing medicine packaging device, and the combination of the winding body and the medicine packaging device. An object of the present invention is to provide a wound body, a core body forming the wound body, a mounting aid, and a combination of the wound body and the mounting aid.

The present invention includes a wound body formed by winding a packaging material, and a support shaft that supports the wound body, and the packaging material unwound from the wound body supported by the support shaft. A drug packaging device for packaging a drug by using the wound body, the wound body includes a core body formed in a cylindrical shape, and the packaging material wound around the outer circumference of the core body, The support shaft has a cylindrical outer peripheral portion, the core is attached to the outer peripheral portion of the outer peripheral portion, is rotatable about a central axis of the outer peripheral portion, has a base end portion and a distal end portion, The outer peripheral portion of the shaft is provided at a position of the base end portion of the support shaft, and is provided at a position of a first protrusion protruding outward in the radial direction and a position of the tip end portion of the support shaft. A second protrusion protruding outward is formed, the core body includes a cylindrical inner peripheral portion, has one end portion and the other end portion, and the inner peripheral portion of the core body, A first recessed portion that is provided at the position of the one end of the core body and is recessed radially outward, and a first recessed portion that is provided from the position of the one end portion of the core body to the position of the other end portion of the core body, A second recessed portion that is recessed outward is formed, and the core is mounted on the outer periphery of the support shaft from the one end side of the core body and from the tip end side of the support shaft, In a state where the core body is mounted on the outer periphery of the support shaft, the support shaft and the core body are integrated around the central axis line by fitting the first protrusion and the first recess. When the core is mounted on the outer periphery of the support shaft, the second protrusion and the second recess are engaged with each other, whereby the first protrusion and the second protrusion are engaged with each other. The first recess is aligned in the circumferential direction around the central axis, and the second protrusion is a protrusion amount of the support shaft outward in the radial direction with respect to the outer periphery as compared with the first protrusion. Is smaller, and the second recess has a smaller amount of outward recess in the radial direction with respect to the inner peripheral portion of the core body than the first recess, or a combination of a wound body and a medicine packaging device, or The wound body used for this or the core body used for this.

Further, the second recess may be formed over the entire circumference in the circumferential direction of the core at the position of the one end of the core.

The second recess includes a guide portion that guides the second protrusion, and the guide portion includes the first protrusion and the first protrusion when the core is mounted on the outer periphery of the support shaft. The second protrusion may be guided so that the one recess is aligned with the circumferential direction around the central axis.

The second recess includes a guide portion that guides the second protrusion, and the guide portion is provided on the other end side of the core body with respect to the guide portion, and is provided on the outer periphery of the support shaft. When the core is mounted, the second protrusion is guided so that the first protrusion and the first recess are kept aligned in the circumferential direction around the central axis. Can be something.

INDUSTRIAL APPLICABILITY The present invention can facilitate the work of mounting the winding body on the support shaft without significantly modifying the support shaft included in the existing drug packaging device.

It is a perspective view showing a schematic structure of a packing part in a medicine packing device concerning one embodiment of the present invention. It is a perspective view which shows the support shaft and the core in a winding body among the said packaging parts. It is a half cross-sectional perspective view which follows the axis line of the said core. It is a perspective view which shows the said core body in the mounting state with the support shaft in the said packaging part. It is a figure for demonstrating a mode that the position alignment of the said core with respect to the said support shaft is performed in the circumferential direction.

Next, the present invention will be described by taking an embodiment of a combination of the wound body 6 and the medicine packaging device 1. In the following description, the “base end side” corresponds to the left side in FIG. 2, and the “tip end side” corresponds to the right side in FIG. 2. The “axial direction” in the following description means the axial direction of the support shaft 31.

-Outline of packaging department-
FIG. 1 schematically shows a packaging unit 2 which is a portion for packaging a drug in the drug packaging device 1. The drug (not shown) is, for example, a tablet or a powder. The packaging material 62 used in the medicine packaging device 1 is a strip-shaped and long sheet. The material of the packaging material 62 is, for example, paper or resin. The packaging material 62 is conveyed in the longitudinal direction (the direction of the arrow F shown in the drawing). The packaging material 62 is wound around the outer periphery of the core body 61 to form a roll-shaped wound body (packaging material roll) 6. That is, the wound body 6 is configured by winding the long sheet-shaped packaging material 62. In the wound body 6, the packaging material 62 is wound around the outer periphery of the core body 61 in a state of being half-folded at the center in the width direction (shorter direction). The packaging material 62 is unwound from the winding body 6. The medicine packaging device 1 uses the packaging material 62 unwound from the winding body 6 to package the medicine. The packaging unit 2 in the medicine packaging device 1 is located in the order of the packaging material supply unit 3, the packaging material transportation unit 4, and the packaging body forming unit 5 from the upstream side to the downstream side in the transportation direction of the packaging material 62. These will be described below. For convenience, the packaging material supply unit 3 will be described later.

-Packaging material transport section-
The packaging material transport unit 4 transports the packaging material 62 in the longitudinal direction and supplies the packaging material 62 to the package forming unit 5 on the downstream side in the transportation direction. The packaging material conveying unit 4 mainly includes a tension adjusting mechanism 41 and a folding bar 42. The tension adjusting mechanism 41 is a mechanism that adjusts the tension by bridging the packaging material 62 so as to be folded back between the plurality of rollers 411 to 413 whose axial distances vary. The tension adjusting mechanism 41 of the present embodiment is a combination of, for example, two fixed rollers 411 and 412 whose axial positions are immovable and one dancer roller 413 which is moved so that the axial positions are curved with respect to the base. Has been done. The folding bar 42 changes the conveying direction of the packaging material 62 conveyed upward from the tension adjusting mechanism 41 to the oblique downward direction. The packaging material transport unit 4 can be provided with a printing unit 43 that prints, for example, drug prescription information on the surface of the packaging material 62.

-Package forming section-
The package forming part 5 is a part that supplies a medicine to the packaging material 62 according to a prescription and bonds the packaging material 62 to package each package. The package forming unit 5 mainly includes a triangular plate 51, a hopper 52, and a packaging material bonding unit 53. The triangular plate 51 is located on the downstream side in the transport direction of the folding bar 42, and pushes open one side and the other side of the packaging material 62 in a state of being half-folded in the width direction, so that the triangular plate 51 has a V-shaped cross section in the longitudinal direction. It is a part to make a form. In the hopper 52, a part of a lower portion 522 formed with a smaller cross-sectional area than the upper portion 521 is inserted into a space 62S having a V-shaped cross section in which the packaging material 62 is pushed open by the triangular plate 51. A medicine supply mechanism (not shown) provided above the hopper 52 supplies the medicine supplied according to the prescription to the packaging material 62 via the inside of the hopper 52. The packaging material adhesive portion 53 is a portion that adheres the packaging material 62 so that the packaging material 62 supplied with the medicine is partitioned by one by heat-sealing the packaging material 62. In addition to this, the package forming section 5 may be provided with, for example, a perforation forming section (not shown) for forming perforations for facilitating cutting on the packaging material 62 adhered by the packaging material adhering section 53. it can.

-Packaging material supply section-
The packaging material supply part 3 is a part which sends the packaging material 62 to the packaging material conveyance part 4 or subsequent ones. A wound body 6 is arranged in the packaging material supply unit 3 so as to be rotatable in the circumferential direction. As the winding body 6 rotates, the packaging material 62 is pulled out from the winding body 6 in the longitudinal direction.

As shown in FIG. 2, the packaging material supply unit 3 includes a support shaft 31. The support shaft 31 is provided so as to protrude from a base (not shown). A part of the packaging material conveying unit 4 (tension adjusting mechanism 41 shown in FIG. 1) is also provided on this base. The support shaft 31 has a substantially columnar shape. The support shaft 31 has a cylindrical outer peripheral portion. The support shaft 31 has a base end portion (left portion in the drawing) and a tip end portion (right portion in the drawing). The base end of the support shaft 31 is supported by the base. The support shaft 31 includes a main shaft portion 311 having a constant diameter dimension, and a base end shaft portion 312 located closer to the base end side than the main shaft portion 311 and having a larger diameter dimension than the main shaft portion 311. A step is formed between the main shaft portion 311 and the base end shaft portion 312 as shown in the figure.

The support shaft 31 is rotatably provided with respect to the base and supports the winding body 6 (core body 61). The support shaft 31 is driven and rotated by a drive unit such as a stepping motor (not shown) provided inside the base. The support shaft 31 is rotated in both the drawing direction and the drawing direction of the packaging material 62. In addition, the support shaft 31 is intermittently rotated in response to the supply of the packaging material 62 to the package forming portion 5. The support shaft 31 is cantilevered from the base, and the tip of the support shaft 31 is open. Therefore, as shown in FIG. 2, the core body 61 of the winding body 6 is arranged at the axially extended position on the open side of the support shaft 31, and is wound in the axial direction from the distal end side toward the proximal end side. By inserting the winding body 6, the winding body 6 (only the core body 61 is shown) can be attached to the support shaft 31 as shown in FIG. The winding body 6 is attached to the support shaft 31 so as not to rotate relatively.

The support shaft 31 of the present embodiment is formed to be longer in the axial direction than the winding body 6. Therefore, as shown in FIG. 4, a part of the support shaft 31 (mounting auxiliary portion 31B) projects from the core body 61 in the mounted state (mounted state on the support shaft body 31A). However, the present invention is not limited to this, and the other end (described later) of the core 61 in the mounted state and the tip of the support shaft 31 may be aligned.

Further, a part of the support shaft 31 protruding from the core 61 on the tip side (a part where the guide projection 317 is formed) is a separate body from the support shaft main body 31A which is the base end side part of the support shaft 31. The mounting aid 31B is mounted on the support shaft body 31A. This mounting aid 31B can be used in combination with the winding body 6 of the present embodiment. The mounting aid 31B is mounted on the support shaft main body 31A by, for example, diverting a fitting structure for attaching a tip cover included in a support shaft included in an existing drug packaging device (after removing the tip cover, the mounting aid is removed). 31B) and fitting to an existing support shaft (not limited to this, various mounting modes are possible). The support shaft main body 31A includes a cylindrical outer peripheral portion. The mounting auxiliary tool 31B serves as a mounting auxiliary portion that is a part of the support shaft 31 when mounted on the support shaft main body 31A. This structure can be used as the support shaft 31 of the present embodiment, for example, by mounting the cover member provided at the tip of the short support shaft so as to be replaced. By the mounting auxiliary portion 31B attached to the tip end portion of the support shaft main body 31A, the support shaft 31 of the present embodiment can be formed without significantly modifying the support shaft included in the existing drug packaging device. Therefore, the combination of the wound body 6 and the medicine packaging device 1 of the present embodiment can be realized at low cost. However, for example, in the newly manufactured support shaft 31, the support shaft main body 31A and the mounting assisting portion 31B may have an integral structure instead of such a separate structure.

As shown in FIG. 2, a plurality of (four in the present embodiment) hook protrusions 313 as first protrusions are formed on the base end shaft portion 312 of the support shaft 31. The plurality of hooking protrusions 313 to 313 are provided at regular intervals (at intervals) in the circumferential direction (rotational direction). Each hooking protrusion 313 projects radially outward from the outer peripheral surface of the base end portion of the support shaft 31. Each hooking protrusion 313 extends axially from the base end of the support shaft 31 by a predetermined distance in the distal direction. A bar-shaped packaging material cutout detection pin 314 projects radially from a part of the plurality of hooking protrusions 313 to 313 (in the present embodiment, every other hooking protrusion 313 in the circumferential direction). The tip of the packaging material breakage detection pin 314 is set to be positioned outside the outer peripheral surface of the core body 61 when the winding body 6 is mounted on the support shaft 31. Further, the hooking protrusion 313 provided with the packaging material breakage detection pin 314 is provided with a cutout portion 315 that penetrates in the radial direction and extends in the axial direction.

The packaging material shortage detection pin 314 is urged toward the tip end side (right side in the drawing) in the axial direction of the support shaft 31 by the urging force of a spring (not shown) provided inside the support shaft 31. When the wound body 6 in which the packaging material 62 is wound is attached to the support shaft 31, the packaging material shortage detection pin 314 is located closer to the packaging material 62 that is radially laminated on the outer periphery of the core body 61. By being pushed out toward one side, it is moved toward the axial base end side against the spring bias. In addition, in the core body 61 of the wound body 6, a notch that penetrates in the radial direction and extends in the axial direction, as in the case of the support shaft 31, in a portion that corresponds to the packaging material cutout detection pin 314 when mounted on the support shaft 31. A section 611 is provided. The notch 611 is arranged so as to match the notch 315 of the support shaft 31 in the circumferential direction. Therefore, the core body 61 may be rotated in the circumferential direction with respect to the support shaft 31 by an operator for the purpose of aligning the cutout portion 611 (this point will be described later). When the packaging material 62 is pulled out from the wound body 6 and disappears (that is, when only the core body 61 is used), the pushing-out by the packaging material 62 is stopped, so that the spring-energized packaging material cutout detection pin 314 is removed. It moves to the tip end side in the axial direction and enters the notch 611 (see FIG. 4 ). In this way, by detecting that the packaging material shortage detection pin 314 has entered the notch 611 with a sensor or the like, the packaging material shortage can be detected. By detecting that the packaging material 62 is completely unwound from the winding body 6, for example, the packaging material supply unit 3 can be automatically stopped.

A shift restricting portion 316 projects from the outer peripheral surface of the support shaft 31. At least one (not shown in the figure, but two in the present embodiment) shift restriction portions 316 are provided. When a plurality of shift restricting portions 316 are provided as in the present embodiment, the plurality of shift restricting portions 316 are provided at a constant distance (spaced) in the circumferential direction. In the present embodiment, the two displacement restricting portions 316 are located at equal intervals in the circumferential direction (that is, intervals of 180 degrees in angle). In addition, in the present embodiment, the shift restricting portion 316 is provided at the same position as any of the plurality of (four in the present embodiment) hooking protrusions 313 to 313 at the circumferential position. The deviation restricting portion 316 is, for example, a spherical shape or a hemispherical shape, and is a projection that is biased radially outward by a spring provided inside the support shaft 31 and a part of which protrudes from the outer peripheral surface of the support shaft 31. The shift restricting portion 316 is provided on the outer peripheral surface of the support shaft 31 so as to be retractable. The shift restricting portion 316 engages with a step portion 612 of the core body 61 which will be described later. Therefore, the core body 61 can be prevented from being displaced in the axial direction with respect to the support shaft 31, and the winding body 6 can be reliably mounted on the support shaft 31.

At least one (four in the present embodiment) guide protrusion 317 as a second protrusion is formed at the tip of the support shaft 31 (main shaft portion 311). When a plurality of guide protrusions 317 are formed as in the present embodiment, the plurality of guide protrusions 317 to 317 are provided at a constant distance (spaced) in the circumferential direction. Each of the guide projections 317 projects radially outward from the outer peripheral surface of the tip end portion of the support shaft 31. Each guide protrusion 317 protrudes between the plurality of hooking protrusions 313 to 313 at the circumferential position. That is, when viewed in the axial direction, the hooking protrusions 313 and the guide protrusions 317 are alternately positioned. In the present embodiment, the hooking protrusions 313 and the guide protrusions 317 are alternately located at equal intervals in the circumferential direction. Further, each guide protrusion 317 has a smaller amount of protrusion outward in the radial direction with respect to the outer peripheral portion of the support shaft body 31A than each hook protrusion 313.

As shown in FIG. 2, the guide protrusion 317 includes a main body portion 3171 having a constant width and a reducing portion 3172 that is provided on the distal end side of the main body portion 3171 and has a width dimension reduced toward the distal end. Prepare for one. The reduced portion 3172 has a slope at the end in the width direction. In the present embodiment, the inclined surface is formed in a linear shape as viewed in the radial direction, but the present invention is not limited to this, and may be another shape such as a curved linear shape. Further, although the slope is symmetrical with respect to the axial direction in the present embodiment, it may be asymmetric.

When the core body 61 is inserted into the support shaft 31, the guide protrusion 317 is brought into contact with the inner peripheral surface portion 617 of the core body 61, so that the core body 61 is aligned in the circumferential direction with respect to the support shaft 31. It can be performed (positioning of the core body 61 will be described later). This is shown in FIG. Incidentally, in order to facilitate understanding in FIG. 5, the guide protrusion 317 (two-dot chain line) is shown to move in the axial direction with respect to the core body 61, but actually it is the reverse of the illustration. The core body 61 moves in the axial direction with respect to the guide protrusion 317. At this time, the support shaft 31 and the core body 61 relatively rotate in the circumferential direction and are aligned. The support shaft 31 is immovable in the circumferential direction, and the core body 61 may rotate in the circumferential direction with respect to the support shaft 31, or the core body 61 is immovable in the circumferential direction and the core body 61 is immovable. The support shaft 31 may rotate in the circumferential direction. Both the support shaft 31 and the core 61 may rotate in the circumferential direction.

The guide protrusion 317 is provided at a position different from the hooking protrusion 313 in the axial direction. Specifically, the guide protrusion 317 is provided on the tip end portion of the support shaft 31, and the hooking protrusion 313 is provided on the base end portion of the support shaft 31. By being provided at such different positions, the hooking recess 615 of the core 61 is fitted into the hooking protrusion 313 of the support shaft 31 with a sufficient time after the positioning of the core 61 in the circumferential direction is completed. Can be combined. In particular, since the guide protrusion 317 of this embodiment is provided at the tip of the support shaft 31, the alignment of the core body 61 is performed at the beginning of the insertion operation, not at the end. Therefore, the mounting of the winding body 6 on the support shaft 31 has good operability. Further, also on the side of the core body 61, a mechanism (a hooking recess 615 in this embodiment) to which a rotational force is transmitted from the support shaft 31 and a mechanism for circumferential alignment (a guide recess 616 in this embodiment). Can be distributed in the axial direction without being concentrated on one end of the core body 61 in the axial direction. For this reason, it is possible to suppress the strength of one end portion of the core body 61 in the axial direction from being greatly reduced as compared with the strength of the other end portion.

-Core body of wound body-
As shown in FIG. 2, the core body 61 of the wound body 6 has a tubular shape (cylindrical shape) or a tubular shape (circular tubular shape) having a circular radial cross section. The core 61 has a cylindrical inner peripheral portion. As shown in FIG. 1, the packaging material 62 is wound around the outer peripheral surface of the core body 61. The outer diameter of the core 61 is constant in the axial direction. Therefore, no step appears on the outer peripheral surface of the core body 61, so that the packaging material 62 can be wound without making a crease. The core body 61 is axially moved with respect to the outer periphery of the support shaft 31 in the packaging material supply unit 3 to be attached/detached (mounted and removed). The core body 61 is aligned in the circumferential direction of the support shaft 31 and mounted on the outer periphery of the support shaft 31. The core body 61 has one end and the other end. One end is a part near the support shaft 31 in FIG. 2, and the other end is a part far from the support shaft 31 in FIG. The core body 61 is mounted on the support shaft 31 from one end side in a regular orientation (mounting direction). At the time of mounting, the core body 61 is moved in the axial direction from the front end portion to the base end portion of the support shaft 31. The core body 61 is provided with a notch portion 611 at the base end portion in the direction (normal mounting direction) when mounted on the support shaft 31. The cutout portion 611 is provided at a position corresponding to the packaging material cutout detection pin 314 that projects radially outward from the support shaft 31 when the core body 61 is mounted on the support shaft 31. The cutout portion 611 has a space that penetrates the core body 61 in the radial direction and that is open at the base end of the core body 61. In this space, the packaging material breakage detection pin 314 can move in the axial direction of the support shaft 31. This movement is performed after the packaging material 62 is pulled out from the winding body 6 and is lost (FIG. 4 shows a state after the movement). By the way, this notch 611 can also be used as a visual or tactile clue when the operator identifies the direction of the winding body 6.

As shown in FIG. 2, a step portion 612 is formed on the tip side of the inner peripheral portion of the core body 61. A plurality of stepped portions 612 (four locations in this embodiment) are provided intermittently in the circumferential direction. A shift restricting portion 316 protruding from the support shaft 31 is engaged with the step portion 612. Therefore, the core body 61 can be prevented from being displaced in the axial direction with respect to the support shaft 31, and the winding body 6 can be reliably mounted on the support shaft 31. On the other hand, since the shift restricting portion 316 is biased by the spring, for example, when the core body 61 is removed from the support shaft 31, if the core body 61 is moved in the axial direction by a force that overcomes the biasing force of the spring, The body 61 moves with respect to the support shaft 31. Therefore, when the core body 61 is pulled out from the support shaft 31, the work can be performed without any trouble.

The core body 61 includes a plurality of magnet holding portions 613 to 613 that hold a combination of permanent magnets corresponding to a magnetic detection unit such as a magnetic sensor that the packaging material supply unit 3 has for identifying the wound body 6. Prepare Permanent magnets are arranged in a predetermined number of selected magnet holders 613 to 613 of the plurality of magnet holders 613 (the magnet holder 613 in the state where no permanent magnet is arranged is shown in the drawing). .. The "identification of the wound body 6" is specifically to identify the material of the packaging material 62. In the plurality of magnet holding units 613 to 613, the magnetic detection unit detects the number of the magnet holding units 613 in which the permanent magnets are arranged, the polarity of the permanent magnets, the strength of the magnetic force, and the like to perform identification. A medicine package configured to identify the wound body 6 by means other than magnetism, such as electromagnetic detection by an RFID tag capable of wireless identification such as an IC chip and optical detection by a two-dimensional code. The magnet holding unit 613 is not necessary in the device or the medicine packaging device in which the magnetic detection unit is removed or invalidated by modification.

The core body 61 includes a hooking recess 615 as a first recess, a guide recess 616 as a second recess, and an inner peripheral surface portion 617 on the inner periphery. A plurality of sets of the hook recess 615, the guide recess 616, and the inner peripheral surface 617 are provided in the circumferential direction. These can be provided at equal intervals in the circumferential direction. In this embodiment, four sets of these portions 615 to 617 are provided at equal intervals in the circumferential direction. However, it is possible to provide only one set or a plurality of sets at unequal intervals. Further, these portions 615 to 617 are provided asymmetrically in the axial direction, as shown in FIGS. 2 and 3.

The hook recess 615 is provided on the inner circumference of the core body 61 on the one end side. The hooking recess 615 is fitted to the hooking protrusion 313 of the support shaft 31 in a state where the hooking recess 615 is mounted on the support shaft 31, thereby transmitting a rotational force in the circumferential direction between the hooking recess 615 and the support shaft 31. That is, when the core body 61 is mounted on the outer periphery of the support shaft body 31A, the hooking protrusion 313 and the hooking recess 615 are fitted to each other, so that the support shaft body 31A and the core body 61 are connected to each other. It is possible to rotate integrally around the central axis of the outer peripheral portion of the. The number of hooking recesses 615 corresponds to the number of hooking protrusions 313 on the support shaft 31. The number of sets of the guide concave portion 616 and the inner peripheral surface portion 617 is equal to the number of the guide protrusions 317 on the support shaft 31. However, the number of hooking recesses 615 can be larger than the number of hooking protrusions 313 on the support shaft 31. Further, the number of sets of the guide concave portion 616 and the inner peripheral surface portion 617 can be larger than the number of the guide protrusions 317 on the support shaft 31.

The guide recess 616 is provided on the inner circumference of the core body 61 so as to extend from the end portion on the one axial end side toward the other axial end. The guide recess 616 has an inner diameter larger than the outer diameter of the support shaft 31. The guide recess 616 is radially outer than the inner recess (more specifically, the inner peripheral surface, more specifically, the inner peripheral surface 617 or the inner peripheral surface of the thick portion 619) of the core 61, as compared with the hooking recess 615. The amount of indentation is small. Therefore, it is possible to prevent the strength of the core body 61 from decreasing due to the depression. The guide recess 616 is formed at the position of one end of the core 61 over the entire circumference of the core 61 in the circumferential direction (portion 6162a shown in FIG. 3). Therefore, when the core body 61 is extrapolated to the attachment assisting portion 31B, it is not necessary to align the attachment assisting portion 31B and the core body 61 around the central axis, and the work can be facilitated. When the core body 61 is mounted on the support shaft 31, the guide recess 616 engages with the guide protrusion 317 to perform circumferential positioning with respect to the support shaft 31. That is, when the core body 61 is mounted on the outer periphery of the support shaft main body 31A, the guide protrusion 317 and the guide recess 616 engage with each other, so that the guide protrusion 317 and the guide recess 616 are supported. It is aligned in the circumferential direction around the central axis of the outer peripheral portion of the shaft body 31A. The guide recess 616 is located on the other end side, has a constant width dimension (circumferential dimension) and extends in the axial direction, and a positioning portion 6161 that is continuous to the one end side of the positioning portion 6161 in the axial direction. The guide portion 6162 extends and has a width dimension (circumferential dimension) that increases toward the one end side. The width dimension of the positioning portion 6161 is substantially the same as the width dimension of the guide protrusion 317. Specifically, it is larger (slightly larger) than the width dimension of the guide protrusion 317 so that the movement of the core body 61 in the axial direction with respect to the guide protrusion 317 can be allowed.

In the portion of the guide portion 6162 where the inner peripheral surface portion 617 overlaps in the axial direction, the circumferential dimension decreases from the one end side toward the other end side. It is moved in the circumferential direction (see FIG. 5, but FIG. 5 shows the movement and immovability of the core body 61 and the guide protrusions 317 in the opposite direction to the actual state). Then, the hooking recess 615 of the core body 61 is aligned with the hooking protrusion 313 of the support shaft 31. In this way, the core body 61 rotates with respect to the support shaft 31 and is aligned in the circumferential direction.

Regarding the portion 6162a (see FIG. 3) of the guiding portion 6162 where the inner peripheral surface portion 617 does not overlap in the axial direction, the action of moving the core body 61 in the circumferential direction by contact with the guide protrusion 317 is achieved. Not done. The portion 6162a acts to facilitate the attachment of the core body 61 to the support shaft 31. That is, the guide portion 6162 has an inner diameter dimension larger than the outer diameter dimension of the support shaft 31, and is exposed at the end portion of the core body 61 on the one axial end side. In this embodiment, it is exposed on the entire circumference in the circumferential direction. That is, the inner diameter of the end portion of the core body 61 on the one axial end side is in a loose relation with the outer diameter of the support shaft 31 due to the exposed guide portion 6162. Therefore, the winding body 6 (core body 61) can be easily inserted into the support shaft 31 as compared with a configuration in which there is no dimensional allowance. Incidentally, since the winding body 6 in which the packaging material 62 is wound around the core body 61 is heavy (especially, the new winding body 6 is particularly heavy because the packaging material 62 is not consumed at all). The ease is a great advantage for the user of the medicine packaging device 1. Incidentally, this action is also the action of the thin portion 618 described later.

Here, in the guide portion 6162, the portion 6162a where the inner peripheral surface portion 617 does not overlap in the axial direction can be said to be a “free area” in which the rotation of the core body 61 is allowed without being restricted. The positioning portion 6161 displaces the guide recess 616 of the core body 61 in the axial direction with respect to the guide protrusion 317 of the support shaft 31 so that the rotation of the core body 61 is substantially impossible. It can also be said to be a “restricted area” where there is only some circumferential play. Further, in the guide portion 6162, a portion 6162b where the inner peripheral surface portion 617 overlaps in the axial direction is a “transition region” in which the rotatable range of the core body 61 is smaller on the other end side than on the one end side in the axial direction. Can also be said. The guide recess 616 extends from one end side in the axial direction to the other end side and is continuous in the order of the free region, the transition region, and the restricted region.

The inner peripheral surface portion 617 is a portion that is adjacent to the guide recess 616 in the circumferential direction. The inner peripheral surface portion 617 is thicker (having a larger radial dimension) than the guide recess 616. The inner peripheral surface portion 617 is provided on the inner periphery of the core body 61 so as to extend from the end portion on the other end side in the axial direction toward the one end side in the axial direction. Is located between the center in the axial direction and the edge on the one end side in the axial direction. In this embodiment, the tip is formed at a position adjacent to the other end of the hooking recess 615 in the axial direction. The tip portion of the inner peripheral surface portion 617 is opposite to the shape of the guide portion 6162, and the circumferential dimension is reduced from the other end side toward the one end side. The inner peripheral surface portion 617 has an asymmetric shape in the axial direction.

The surface of the inner peripheral surface portion 617 is a curved surface that curves in the circumferential direction with a constant curvature. The circumferential curvature of the surface of the inner peripheral surface portion 617 is the same (substantially the same) as the circumferential curvature of the outer peripheral surface of the support shaft 31. Since the surface of the inner peripheral surface portion 617 is a curved surface having a spread, the inner peripheral surface portion 617 makes surface contact with the outer peripheral surface of the support shaft 31 when the core body 61 is mounted. Here, for example, in a configuration in which a plurality of protrusions extending in the axial direction are formed on the inner peripheral surface of the core body, since the linear contact is made with the outer peripheral surface of the support shaft, the “winding tightness” described later causes the support. Deformation (distortion) may occur in the main body of the core body that is in a state of floating with respect to the shaft. On the other hand, in the present embodiment, the surface of the inner peripheral surface portion 617 is in surface contact with the outer peripheral surface of the support shaft 31, so that it is possible to reduce the possibility that the above-described deformation (distortion) occurs in the core body 61.

Since the inner peripheral surface portion 617 is thick and the guide concave portion 616 is thin, a step is formed between the inner peripheral surface portion 617 and the guide concave portion 616. That is, the circumferential end edges of the positioning portion 6161 and the guiding portion 6162 of the guide recess 616 are defined by the inner peripheral surface portion 617. The inner peripheral surface portion 617 has a core side slant surface 6171 that defines the width direction (circumferential direction) edge of the guide portion 6162 of the guide recess 616 (see FIGS. 4 and 5 ).

As described above, when the core body 61 including the hooking recess 615, the guide recess 616, and the inner peripheral surface portion 617 is to be mounted on the support shaft 31 from the one end side, first, the core 61 is inserted into the guide protrusion 317 of the support shaft 31. The guide portion 6162 of the body 61 is located. When the core body 61 is further moved in the axial direction, it changes so that the positioning portion 6161 of the core body 61 is positioned with respect to the guide protrusion 317 (see the position change indicated by the arrow in FIG. 5).

The positioning portion 6161 is also a guide portion that guides the guide protrusion 317. The positioning portion 6161 as the guide portion is provided at the position of the other end of the core body 61 and is continuous with the guiding portion 6162, and when the core body 61 is mounted on the outer periphery of the support shaft main body 31A, the positioning portion 6161 and the catching protrusion 313 are provided. The guide projection 317 is guided so that the state in which the hooking recess 615 is aligned in the circumferential direction around the central axis of the outer peripheral portion of the support shaft main body 31A is maintained. According to this, when the core body 61 is attached to the support shaft body 31A, it is not necessary to intentionally maintain the state in which the support shaft body 31A and the core body 61 are aligned about the central axis. The work can be facilitated.

In addition, the guide portion 6162 has a width dimension (circumferential dimension) that decreases as it advances in a direction from one end portion to the other end portion of the core body 61, and the core body 61 is mounted on the outer periphery of the support shaft main body 31A. At the time of moving, the guide protrusion 317 is guided so that the hook protrusion 313 and the hook recess 615 are aligned in the circumferential direction around the central axis of the outer peripheral portion of the support shaft body 31A. According to this, when the core body 61 is attached to the support shaft main body 31A, it is not necessary to intentionally align the support shaft main body 31A and the core body 61 around the central axis line, which facilitates the work. it can.

Here, when the guide protrusion 317 is located at the circumferential end of the guide portion 6162, the edge of the guide portion 6162, that is, the core side slope 6171 contacts the guide protrusion 317. As a result, the positioning portion 6161 of the core body 61 is guided so as to coincide with the guide protrusion 317. When the core body 61 is further moved in the axial direction, part of the hooking protrusion 313 and part of the hooking recess 615 are fitted while the guide protrusion 317 and the positioning part 6161 of the core body 61 are engaged. .. When the core body 61 is further moved in the axial direction, the positioning portion 6161 of the core body 61 is disengaged from the guide protrusion 317, the hooking protrusion 313 and the hooking recess 615 are completely fitted, and finally shown in FIG. It becomes a state.

The edge of the guide portion 6162 (the core-side inclined surface 6171) may come into contact with the inclined surface of the reducing portion 3172 of the guide protrusion 317 (see FIG. 5 ). Here, the inclinations in the axial direction of the core side slope 6171 that is the end edge of the guiding portion 6162 and the slope of the guide protrusion 317 in the contracting portion 3172 are substantially the same. Therefore, the contact is made smoothly.

As described above, according to the core body 61 of the present embodiment, the guide recessed portion 616 facilitates the attachment to the support shaft 31, and the inner peripheral surface portion 617 ensures the strength of the core body.

Further, the core body 61 includes a thin portion 618 and a thick portion 619. The thin portion 618 is provided on the inner circumference on the one end side in the axial direction. Further, the thin portion 618 is fitted to the base end shaft portion 312 of the support shaft 31 in a state where the core body 61 is attached to the support shaft 31. The thick portion 619 is provided on the inner circumference on the other end side in the axial direction, and is fitted to the main shaft portion 311 of the support shaft 31 in a mounted state on the support shaft 31. The thick portion 619 is thicker than the thin portion 618. The thin portion 618 corresponds to the guide recess 616, and the thick portion 619 corresponds to the inner peripheral surface portion 617. The thin portion 618 has a purpose different from that of the guide recess 616 described above, but the forming range of the inner periphery of the core 61 is the same as that of the guide recess 616. The thin-walled portion 618 and the guide recess 616 can be formed in different ranges. The thick portion 619 has a purpose different from that of the inner peripheral surface portion 617 described above, but the forming range of the core body 61 is the same as that of the inner peripheral surface portion 617 described above. The thick-walled portion 619 and the inner peripheral surface portion 617 can be formed in different ranges.

Here, a phenomenon called "winding tightness" may occur due to the stress (force to shrink in the longitudinal direction) remaining in the packaging material after winding and the surrounding temperature or humidity during the manufacture of the wound body. Due to this "winding tightness", a compressive force is applied to the core body in the radial direction. Due to this compressive force, the thin portion may be deformed radially inward, and the outer periphery of the core body may become distorted. If this happens, the delivery of the packaging material becomes uneven, and the packaging of the drug may become unstable.

According to the core body 61 of the present embodiment, the thin portion 618 fits into the base end shaft portion 312 of the support shaft 31, and the thick portion 619 fits into the main shaft portion 311 of the support shaft 31. The base shaft portion 312 of the support shaft 31 has a larger diameter than the main shaft portion 311. The outer diameter dimension of the base end shaft portion 312 of the support shaft 31 and the inner diameter dimension of the thin wall portion 618 of the core body 61 are the same dimensions so that they can be inserted. Further, the outer diameter dimension of the main shaft portion 311 of the support shaft 31 and the inner diameter dimension of the thick portion 619 of the core body 61 are the same dimensions so that they can be inserted. By fitting the core body 61 to the support shaft 31, the gap between the support shaft 31 and the core body can be suppressed. Therefore, it is possible to eliminate a gap that allows the core body 61 to be deformed to the extent that the delivery of the packaging material 62 is affected. Therefore, the core body 61 physically supported by the support shaft 31 can counter the compressive force of the winding tightness generated by the wound packaging material 62. In particular, in the region 619a of the core body 61 on the other end side with respect to the axial center, the thick portion 619 occupies a larger proportion in the circumferential direction than the thin portion 618. Therefore, the region 619a greatly contributes to countering the compression force of the winding tightening.

-Reuse of used core-
The core 61 is made of, for example, a hard resin. Therefore, the core body 61 can be reused many times by reusing it after the packaging material 62 is used up. This can contribute to the saving of petroleum resources, for example. Reuse is performed by winding a new packaging material 62 around the used core body 61 collected from the user of the medicine packaging device 1. By winding the new packaging material 62 around the core body 61 to be reused, the new winding body 6 is manufactured. In order to facilitate recovery, the core body 61 of the wound body 6 delivered to the user is lent to the core body 61 so that the user returns the core body 61. Can be promoted.

For winding the new packaging material 62 around the used core body 61, for example, the new packaging material 62 is wound on a separate core body (paper tube or the like) having an inner diameter dimension larger than the outer diameter dimension of the core body 61. Alternatively, a pre-produced packaging material roll (replacement winding body) may be attached to the used core body 61 by winding. When this method is adopted, by interposing a spacer such as a rubber ring between the used core body 61 and the separate core body, the outer diameter dimension of the core body 61 and the inner diameter dimension of the separate core body are You can also adjust the difference.

The new wound body 6 may be manufactured by a supplier of the wound body 6, or the user of the wound body 6 may instruct the user to perform the manufacturing-related work. Can also In the latter case, the used core 61 is not collected but kept in the user's hand. The instructions from the supplier of the winding body 6 to the user may be explicit or implicit. The latter implied instructions also include the act of simply transferring the replacement winding to the user.

-Possibility of changing the form-
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Drug packaging device 2 Packaging part 3 Packaging material supply part 31 Support shaft 31A Support shaft main body 31B Mounting auxiliary part (mounting auxiliary tool)
311 Main shaft part 312 Base end shaft part 313 Hooking protrusion, 1st protrusion part 317 Guide protrusion, 2nd protrusion part 4 Packaging material conveying part 5 Packaging body forming part 6 Winding body 61 Core body 615 Hooking concave part, 1st concave part 616 Guide recessed portion, second recessed portion 6161 Positioning portion, guide portion 6162 Guide portion 617 Inner peripheral surface portion 618 Thin portion 619 Thick portion 62 Packaging material

Claims (6)

A wound body formed by winding a packaging material,
A support shaft for supporting the wound body, and a drug packaging device for packaging a drug using the packaging material unwound from the wound body supported by the support shaft,
The wound body is
A core body formed in a cylindrical shape,
The packaging material wound around the outer periphery of the core,
The support shaft includes a cylindrical outer peripheral portion, the core is mounted on the outer periphery of the outer peripheral portion, is rotatable around a central axis of the outer peripheral portion, and has a base end portion and a distal end portion,
In the outer peripheral portion of the support shaft,
A first protrusion provided at a position of the base end of the support shaft and protruding outward in the radial direction;
A second protrusion that is provided at the position of the tip of the support shaft and protrudes outward in the radial direction;
The core body includes a cylindrical inner peripheral portion, has one end portion and the other end portion,
In the inner peripheral portion of the core,
A first concave portion that is provided at the position of the one end portion of the core body and that is concave outward in the radial direction;
A second recessed portion that is provided from the position of the one end of the core body to the position of the other end of the core body and that is recessed radially outward is formed;
On the outer periphery of the support shaft, the core body is mounted from the one end side of the core body, and from the tip end side of the support shaft,
In a state where the core body is mounted on the outer periphery of the support shaft, the support shaft and the core body are integrated around the central axis line by fitting the first protrusion and the first recess. It is possible to rotate,
When the core is mounted on the outer periphery of the support shaft, the second protrusion and the second recess are engaged with each other so that the first protrusion and the first recess are aligned with each other along the central axis. Aligned in the circumferential direction around,
The second protrusion has a smaller amount of outward protrusion in the radial direction with respect to the outer peripheral portion of the support shaft, as compared with the first protrusion.
The second concave portion is a combination of the wound body and the medicine packaging device, in which the amount of concave outward in the radial direction with respect to the inner peripheral portion of the core is smaller than that of the first concave portion. The combination of the wound body and the medicine packaging device according to claim 1, wherein the second recess is formed at the position of the one end of the core over the entire circumference in the circumferential direction of the core. The second recess includes a guide portion that guides the second protrusion,
The guide portion is configured such that when the core body is mounted on the outer periphery of the support shaft, the first protrusion and the first recess are aligned in the circumferential direction around the central axis. The combination of the wound body and the medicine packaging device according to claim 1, which guides two protrusions. The second recess includes a guide portion that guides the second protrusion,
The guide is
Provided on the other end side of the core body with respect to the guiding portion,
When the core is mounted on the outer periphery of the support shaft, the first protrusion and the first recess are maintained in a state of being aligned in the circumferential direction around the central axis, and The combination of the wound body and the medicine packaging device according to claim 3, which guides the two protrusions. The said wound body used for the combination of the wound body according to any one of claims 1 to 4 and a medicine packing device. The said core body used for the combination of the winding body of any one of Claims 1-4, and a medicine packaging device.