Manufacturing method for wound body

Abstract

To provide a manufacturing method for a wound body using a core body whose packaging material has used up.SOLUTION: In a manufacturing method for a wound body, which uses a core body 61 in which when the core body 61 is attached to an outer periphery of a support shaft 31 rotatably provided, a first recessed part 6151 at one end part side or a first recessed part 6152 at the other end part side fits to a first protrusion part 313 formed at a position of a base end part of the support shaft 31, so that the first recessed part can rotate integrally with the support shaft 31, and when the core body is attached to the outer periphery of the support shaft 31, a second recessed part 616 engages with a second protrusion part 317 formed at a position of a tip part of the support shaft 31, so that the first protrusion part 313 and the first recessed part 6151 at the one end part side or the first recessed part 6152 at the other end part side are positioned in a circumferential direction of the support shaft 31, a second wound body, prepared preliminary by winding a new long sheet 62 around a second core body 63 having an inner diameter dimension larger than an outer diameter dimension of the core body 61, is attached to the core body 61, after a long sheet previously wound around the core body 61 is used up.SELECTED DRAWING: Figure 19

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a wound body in a state where a packaging material, which is a strip-shaped sheet, is wound.

Background Art

[0002] There is a drug packaging device that uses a packaging material, which is a strip-shaped sheet, to package drugs. An example of a support device for the packaging material provided in such a drug packaging device is described in Patent Document 1. The configuration described in Patent Document 1 has a support shaft (paper feed drum) protruding from a base (referred to as "machine body" in the description of Patent Document 1; the same applies to the following parentheses), and the support shaft is rotatably supported by the base. A core body (core cylinder) is attached to the outer periphery of the support shaft. A packaging material (packaging paper) is wound around the outer periphery of the core body to form a roll-shaped wound body. Drugs can be packaged for the packaging material sequentially drawn out from the wound body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, recently, for example, resource conservation has been demanded.

[0005] Therefore, an object of the present invention is to provide a method for manufacturing a wound body in which the core body can be repeatedly used by reusing the core body after the packaging material has been used up.

Means for Solving the Problems

[0006] The present invention relates to a core body which is formed in a cylindrical shape, has a long sheet wound around its outer circumference, has a cylindrical inner circumferential portion, has one end portion and the other end portion, and in the inner circumferential portion, there is provided at the position of the one end portion a first recess on the one end side that is recessed radially outward, a first recess on the other end side that is recessed radially outward and provided at the position of the other end portion, and a second recess that is provided from the position of the one end portion to the position of the other end portion, is recessed radially outward, and has a smaller amount of recess radially outward with respect to the inner circumferential portion than the first recess on the one end side and the first recess on the other end side. The core body is rotatably provided on the outer circumference of a support shaft and can be attached from the one end side or the other end side. When attached to the outer circumference of the support shaft, the first recess on the one end side or the first recess on the other end side fits into a first protrusion provided at the position of the base end portion of the support shaft, so that it can rotate integrally with the support shaft. When being attached to the outer circumference of the support shaft, the second recess engages with a second protrusion provided at the position of the tip end portion of the support shaft, so that the first protrusion and the first recess on the one end side or the first recess on the other end side are aligned in the circumferential direction of the support shaft. After using up the long sheet previously wound around the core body, a second wound body previously manufactured is attached by winding a new long sheet around the core body onto a second core body having an inner diameter dimension larger than the outer diameter dimension of the core body. This is a method for manufacturing a wound body including this step.

[0007] Also, in a state where the second wound body is attached to the core body, a spacer can be interposed between the outer circumferential surface of the core body and the inner circumferential surface of the second core body.

Advantages of the Invention

[0008] In the present invention, by reusing the core body after using up the packaging material, the core body can be used repeatedly.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

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Figure 6

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Figure 19

Mode for Carrying Out the Invention

[0010] Next, an embodiment of the combination of the winding body 6 and the drug packaging device 1 will be taken up and described for the present invention. 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. Further, the "axial direction" in the following description refers to the axial direction of the support shaft 31. Also, regarding the reference numerals attached to each component, the same reference numerals may be used even if different names are given depending on focusing on the function. Also, for a plurality of components having the same shape, the same reference numerals are used for each of them.

[0011] -Winding body- As shown in FIG. 1, the winding body 6 is configured by winding a packaging material 62. The winding body 6 includes a core body 61 and a packaging material 62. The core body 61 is formed in a cylindrical shape. Examples of the material of the core body 61 include hard resin. The packaging material 62 is formed in a band shape. In other words, the packaging material 62 is formed in a long sheet shape. The packaging material 62 includes a base material and a heat-sealing layer, and is adhesable by heat sealing. Examples of the base material include glassine paper and cellophane paper. The heat-sealing layer is formed on the base material. Examples of the material of the heat-sealing layer include polyethylene. The packaging material 62 is wound around the outer periphery of the core body 61. In the present embodiment, the packaging material 62 is wound around the outer periphery of the core body 61 in a state of being folded in half at the center in the width direction (short side direction) so that the heat-sealing layer is on the inner side.

[0012] -Drug packaging device- As shown in FIG. 1, the drug packaging device 1 packages a drug using the packaging material 62. Examples of the drug include tablets and powders. The drug packaging device 1 includes a support shaft 31 that supports the winding body 6. In FIG. 1, the support shaft 31 is omitted. The drug packaging device 1 packages a drug using the packaging material 62 unwound from the winding body 6 supported by the support shaft 31.

[0013] The medicine packaging device 1 includes a packaging unit 2 which is a part for packaging medicine. The packaging unit 2 includes a packaging material supply unit 3, a packaging material conveyance unit 4, and a package forming unit 5. The packaging material supply unit 3 supplies a packaging material 62. The packaging material conveyance unit 4 conveys the packaging material 62 supplied by the packaging material supply unit 3. The package forming unit 5 forms a package in which medicine is packaged, using the packaging material 62 conveyed by the packaging material conveyance unit 4. The packaging material 62 is conveyed in its longitudinal direction (the direction of the arrow F shown in the figure). In the packaging unit 2, the packaging material supply unit 3, the packaging material conveyance unit 4, and the package forming unit 5 are located in this order from the upstream side to the downstream side in the conveyance direction of the packaging material 62.

[0014] -Packaging material supply unit- The packaging material supply unit 3 is a part that sends the packaging material 62 to the downstream of the packaging material conveyance unit 4. A winding body 6 is arranged in the packaging material supply unit 3 so as to be rotatable in the circumferential direction. By rotating the winding body 6, the packaging material 62 is drawn out from the winding body 6 in the longitudinal direction.

[0015] -Packaging material conveyance unit- The packaging material conveyance unit 4 conveys the packaging material 62 in the longitudinal direction and supplies it to the package forming unit 5 on the downstream side in the conveyance direction. The packaging material conveyance unit 4 mainly includes a tension adjustment mechanism 41 and a folding bar 42. The tension adjustment mechanism 41 is a mechanism that adjusts the tension by stretching the packaging material 62 so as to be folded between a plurality of rollers 411 to 413 whose axial distance varies. The tension adjustment mechanism 41 of the present embodiment is combined with, for example, two fixed rollers 411 and 412 whose axial positions are immovable, and one dancer roller 413 whose axial position moves so as to be curved with respect to the base. The folding bar 42 converts the conveyance direction of the packaging material 62 conveyed upward from the tension adjustment mechanism 41 to an obliquely downward direction. A printing unit 43 for printing, for example, the prescription information of medicine on the surface of the packaging material 62 can be provided in the packaging material conveyance unit 4.

[0016] -Package forming unit- The package forming unit 5 is a part that packages each pack by supplying the drug to the packaging material 62 according to the prescription and adhering the packaging material 62. The package forming unit 5 mainly includes a triangular plate 51, a hopper 52, and a packaging material adhesion part 53. The triangular plate 51 is located on the downstream side in the conveyance direction of the folding bar 42, and is a part that forms a V-shaped cross-section in the longitudinal direction view by pushing open one side and the other side of the packaging material 62 that is half-folded in the width direction. The hopper 52 has a part of the lower part 522, whose cross-sectional area is smaller than that of the upper part 521, inserted into the V-shaped space 62S with a cross-section where the packaging material 62 is pushed open by the triangular plate 51. The drug supplied according to the prescription is supplied to the packaging material 62 via the inside of the hopper 52 by a drug supply mechanism (not shown) provided above the hopper 52. The packaging material adhesion part 53 is a part that adheres the packaging material 62 that has been supplied with the drug, such as by heat welding, so as to partition the packaging material 62 into individual packs. In addition to this, the package forming unit 5 can be provided with, for example, a perforation forming part (not shown) for forming perforations to facilitate cutting of the packaging material 62 adhered by the packaging material adhesion part 53.

[0017] -Support shaft- As shown in FIG. 2, the support shaft 31 is formed in a cylindrical shape. The support shaft 31 includes a cylindrical outer peripheral part as a part of it. On the outer periphery of the outer peripheral part of the support shaft 31 (the outer periphery of the support shaft 31), a winding body 6, specifically, the core body 61 of the winding body 6, is mounted.

[0018] The support shaft 31 is provided rotatably with respect to the base. In FIG. 2, the base exists to the left of the support shaft 31, but the illustration is omitted. The support shaft 31 is rotatable around the central axis of the outer peripheral part of the support shaft 31 (the central axis of the support shaft 31).

[0019] The support shaft 31 is driven by a drive unit. The drive unit is provided inside the base. Examples of the drive unit include a stepping motor. The drive unit rotates the support shaft 31 in a first rotation direction and a second rotation direction opposite to the first rotation direction. When the support shaft 31 is rotated in the first rotation direction, the wrapping material 62 is unwound from the winding body 6 supported by the support shaft 31. When the support shaft 31 is rotated in the second rotation direction, the wrapping material 62 is wound back onto the winding body 6 supported by the support shaft 31. The drive unit intermittently rotates the support shaft 31 in accordance with the conveyance of the wrapping material 62 to the packaging body forming unit 5.

[0020] The support shaft 31 is cantilever-supported with respect to the base. The support shaft 31 has a base end portion (the left portion in FIG. 2) and a tip end portion (the right portion in FIG. 2). The core body 61 is attached to the outer periphery of such a support shaft 31 from the tip end portion side of the support shaft 31. Hereinafter, the direction from the tip end portion of the support shaft 31 toward the base end portion of the support shaft 31 may be referred to as the "attachment direction", and the direction from the base end portion of the support shaft 31 toward the tip end portion of the support shaft 31 may be referred to as the "removal direction".

[0021] It can also be said that the support shaft 31 includes a support shaft main body 31A and a support shaft tip body 31B. The support shaft main body 31A is a portion including the base end portion of the support shaft 31. The support shaft tip body 31B is a portion including the tip end portion of the support shaft 31. The support shaft tip body 31B is provided separately from the support shaft main body 31A and is attached to the tip end portion of the support shaft main body 31A. By removing the support shaft tip body 31B from the support shaft main body 31A, the inside of the support shaft main body 31A is opened. Therefore, when components such as a magnetic detection unit described later are mounted inside the support shaft 31, the attachment work and maintenance work of the components are facilitated. The support shaft tip body 31B may be integrally formed with the support shaft main body 31A. The support shaft tip body 31B functions as a mounting assistance portion that assists the mounting work of the core body 61 with respect to the support shaft main body 31A. The support shaft tip body 31B is used in combination with the winding body 6 of the present embodiment.

[0022] Further, the support shaft 31 can be said to include a main shaft portion 311 and a base end shaft portion 312 as a distinction from the above-described support shaft main body 31A and support shaft tip body 31B from a different perspective. The main shaft portion 311 is a portion including the tip portion of the support shaft 31. The main shaft portion 311 has a constant diameter dimension. The base end shaft portion 312 is located on the base end side of the support shaft 31 with respect to the main shaft portion 311. The base end shaft portion 312 is a portion including the base end portion of the support shaft 31. The base end shaft portion 312 has a larger diameter dimension than the main shaft portion 311. A step extending in the circumferential direction is formed between the main shaft portion 311 and the base end shaft portion 312 as shown in FIG. 2.

[0023] On the outer peripheral portion of the support shaft 31, at least one (a plurality in this embodiment, specifically four) first protrusion portions 313, at least one (a plurality in this embodiment, specifically two) second protrusion portions 317, and at least one (one in this embodiment) third protrusion portion 318 are formed.

[0024] Each first protrusion portion 313 is provided at the position of the base end portion of the support shaft 31 and protrudes outward in the radial direction of the support shaft 31. Each first protrusion portion 313 is provided on the support shaft main body 31A. Each first protrusion portion 313 is provided on the base end shaft portion 312. Each first protrusion portion 313 extends in the axial direction of the support shaft 31 at the base end portion of the support shaft 31.

[0025] Each first protrusion portion 313 is provided at an angular interval in the circumferential direction of the support shaft 31. Each first protrusion portion 313 is provided at an equal angular interval in the circumferential direction of the support shaft 31. In this embodiment, four first protrusion portions 313 to 313 are provided at 90° intervals in the circumferential direction of the support shaft 31. When the support shaft 31 is viewed from the base end side, taking the angular position of the first first protrusion portion 313 shown on the upper side in FIG. 2 as a reference (this will also be used as the reference for the angular position with respect to the support shaft 31 in the following description) of 0° in the circumferential direction of the support shaft 31, the angular position of the second first protrusion portion 313 (shown on the front side in FIG. 2) is 90°, the angular position of the third first protrusion portion 313 (not shown in FIG. 2 because it is on the radially opposite side of the first first protrusion portion 313) is 180°, and the angular position of the fourth first protrusion portion 313 (shown on the back side in FIG. 2) is 270°.

[0026] Each second protrusion 317 is provided at the position of the tip of the support shaft 31 and protrudes radially outward of the support shaft 31. Each second protrusion 317 is provided on the support shaft tip body 31B. Each second protrusion 317 is provided on the main shaft portion 311. Each second protrusion 317 extends in the axial direction of the support shaft 31 at the tip of the support shaft 31. Each second protrusion 317 has a smaller amount of radial outward protrusion with respect to the outer peripheral portion of the support shaft 31 than each first protrusion 313.

[0027] Each second protrusion 317 includes a main body portion 3171 and a tapered portion 3172. The width dimension of the main body portion 3171 (dimension in the circumferential direction of the support shaft 31) is constant in the axial direction of the support shaft 31. The tapered portion 3172 is provided on the tip side of the support shaft 31 with respect to the main body portion 3171. The tapered portion 3172 is continuous with the main body portion 3171. The tapered portion 3172 narrows from both sides in the circumferential direction of the support shaft 31 as it proceeds in the direction from the base end portion of the support shaft 31 toward the tip of the support shaft 31.

[0028] Each second protrusion 317 is provided at an angular interval in the circumferential direction of the support shaft 31. Each second protrusion 317 is provided at an equal angular interval in the circumferential direction of the support shaft 31. In the present embodiment, two second protrusions 317, 317 are provided at an interval of 180° in the circumferential direction of the support shaft 31. Moreover, in the present embodiment, in the circumferential direction of the support shaft 31, each of the two second protrusions 317, 317 is provided at the same angular position with respect to each of two of the four first protrusions 313, 313. When the support shaft 31 is viewed from the base end side, assuming the angular position of the first first protrusion 313 is 0° in the circumferential direction of the support shaft 31, the angular positions of each of the first and second second protrusions 317, 317 are 0° and 180°.

[0029] The third protrusion 318 is provided at an intermediate position between the base end portion and the tip end portion of the support shaft 31, and protrudes radially outward of the support shaft 31. The third protrusion 318 is provided on the support shaft main body 31A. The third protrusion 318 is provided on the main shaft portion 311. The third protrusion 318 extends in the axial direction of the support shaft 31 at an intermediate portion between the base end portion and the tip end portion of the support shaft 31. The third protrusion 318 has a smaller amount of protrusion radially outward with respect to the outer peripheral portion of the support shaft 31 than each first protrusion 313. The third protrusion 318 has the same amount of protrusion radially outward with respect to the outer peripheral portion of the support shaft 31 as each second protrusion 317. The width dimension (dimension in the circumferential direction of the support shaft 31) of the third protrusion 318 is constant in the axial direction of the support shaft 31. The width dimension of the third protrusion 318 is the same as the width dimension of the main body portion 3171 of each second protrusion 317.

[0030] The third protrusion 318 is provided at a predetermined angular position in the circumferential direction of the support shaft 31. In the present embodiment, in the circumferential direction of the support shaft 31, the third protrusion 318 is provided at the same angular position as one of the two second protrusions 317, 317. When the support shaft 31 is viewed from the base end portion side, assuming that the angular position of the first first protrusion 313 is 0° in the circumferential direction of the support shaft 31, the angular position of the third protrusion 318 is 0°.

[0031] The support shaft 31 includes at least one (a plurality of, specifically two in the present embodiment) protruding and retracting portion 316. Each protruding and retracting portion 316 is provided at a position closer to the tip end portion of the support shaft 31. Each protruding and retracting portion 316 is provided on the support shaft tip body 31B. Each protruding and retracting portion 316 may be provided on the support shaft main body 31A. Each protruding and retracting portion 316 is provided on the main shaft portion 311.

[0032] Each protruding and retracting portion 316 is provided so as to be able to protrude and retract with respect to the outer peripheral portion of the support shaft 31. Each protruding and retracting portion 316 is formed in a spherical or hemispherical shape. Each protruding and retracting portion 316 is embedded inside the support shaft 31. The same number of round holes as the number of protruding and retracting portions 316 are formed in the outer peripheral portion of the support shaft 31. Each round hole penetrates the outer peripheral portion of the support shaft 31 in the radial direction of the support shaft 31. A part of each protruding and retracting portion 316 protrudes radially outward from the round hole. Each protruding and retracting portion 316 is biased radially outward of the support shaft 31 by a spring (not shown). The spring is provided inside the support shaft.

[0033] Each protruding and retracting portion 316 is provided at an angular interval in the circumferential direction of the support shaft 31. Each protruding and retracting portion 316 is provided at an equal angular interval in the circumferential direction of the support shaft 31. In the present embodiment, two protruding and retracting portions 316, 316 are provided as the first and second protruding and retracting portions 316, 316 at an interval of 180° in the circumferential direction of the support shaft 31. Moreover, in the present embodiment, in the circumferential direction of the support shaft 31, each of the two protruding and retracting portions 316, 316 is provided at a different angular position with respect to each of the two second protruding portions 317, 317. Specifically, in the circumferential direction of the support shaft 31, each of the two protruding and retracting portions 316, 316 is provided at an angular position different by 90° with respect to each of the two second protruding portions 317, 317. In the circumferential direction of the support shaft 31, each of the two protruding and retracting portions 316, 316 is provided at the same angular position with respect to each of the second and fourth first protruding portions 313, 313. When the support shaft 31 is viewed from the base end side, when the angular position of the first first protruding portion 313 in the circumferential direction of the support shaft 31 is 0°, the angular positions of each of the first and second protruding and retracting portions 316, 316 are 90° and 270°.

[0034] The support shaft 31 further includes at least one (a plurality in this embodiment, specifically two) moving part 314. Each moving part 314 is provided at the position of the base end portion of the support shaft 31. Each moving part 314 is provided on the support shaft main body 31A. Each moving part 314 is provided on the base end shaft portion 312. Each moving part 314 is provided so as to be movable in the axial direction of the support shaft 31. Each moving part 314 is formed in a rod shape and extends in the radial direction of the support shaft 31. The tip of each moving part 314 protrudes radially outward of the support shaft 31 from the outer peripheral surface of the core body 61 in a state where the core body 61 is mounted on the outer periphery of the support shaft 31. Each moving part 314 is movable over a retracted position and a forward position. The forward position is a position advanced in the direction from the base end portion of the support shaft 31 toward the tip end portion of the support shaft 31 with respect to the retracted position. Each moving part 314 is biased in the direction from the base end portion of the support shaft 31 toward the tip end portion of the support shaft 31 by a spring (not shown). The spring is provided inside the support shaft 31.

[0035] Each moving part 314 is provided at an angular interval in the circumferential direction of the support shaft 31. Each moving part 314 is provided at an equal angular interval in the circumferential direction of the support shaft 31. In this embodiment, two moving parts 314, 314 are provided as the first and second moving parts 314, 314 at an interval of 180° in the circumferential direction of the support shaft 31. Moreover, in this embodiment, in the circumferential direction of the support shaft 31, each of the two moving parts 314, 314 is provided at the same angular position with respect to the second and fourth first protrusion parts 313, 313. For this reason, each of the two moving parts 314, 314 is provided so as to protrude radially outward from the second and fourth first protrusion parts 313, 313. When the support shaft 31 is viewed from the base end portion side, if the angular position of the first first protrusion part 313 in the circumferential direction of the support shaft 31 is 0°, the angular positions of each of the first and second moving parts 314, 314 are 90° and 270°.

[0036] The first moving part 314 is provided on the second first protrusion 313 that is at an angular position of 90° with respect to the first first protrusion 313 (angular position 0°). On the outer surface in the radial direction of the second first protrusion 313, a first long hole 315 is formed as a notch extending in the axial direction of the support shaft 31. The first long hole 315 penetrates the second first protrusion 313 in the radial direction of the support shaft 31. The first moving part 314 penetrates the first long hole 315, and a part including its tip protrudes radially outward from the support shaft 31 from the first long hole 315.

[0037] On the other hand, the second moving part 314 is provided on the fourth first protrusion 313 that is at an angular position of 270° with respect to the first first protrusion 313 (angular position 0°). On the outer surface in the radial direction of the fourth first protrusion 313, a second long hole 315 is formed as a notch extending in the axial direction of the support shaft 31. The second long hole 315 penetrates the fourth first protrusion 313 in the radial direction of the support shaft 31. The second moving part 314 penetrates the second long hole 315, and a part including its tip protrudes radially outward from the support shaft 31 from the second long hole 315.

[0038] - Core As shown in FIGS. 2 and 3, the core 61 is formed in a cylindrical shape. The core 61 includes, as a part thereof, a cylindrical outer peripheral part that is an outer region in the radial direction and a cylindrical inner peripheral part (not shown) that is an inner region in the radial direction. The core 61 has one end (the left end in FIGS. 2 and 3) and the other end (the right end in FIGS. 2 and 3). The core 61 is basically symmetrically formed with respect to a virtual plane perpendicular to its central axis at the center in the axial direction parallel to the central axis. That is, with the virtual plane as a boundary, the shape of one end side of the core 61 and the shape of the other end side of the core 61 are in a mirror image relationship. Such a core 61 can be attached to the outer periphery of the support shaft 31 from one end side of the core 61 and can also be attached from the other end side of the core 61.

[0039] The outer diameter dimension of the core body 61 is constant in the axial direction of the core body 61. There is no step on the outer periphery of the outer peripheral portion of the core body 61. Therefore, even when the wrapping material 62 is wound around the outer periphery of the core body 61, no step mark is formed on the wrapping material 62.

[0040] On the inner peripheral portion of the core body 61, at least one (a plurality in this embodiment, specifically four) first recess 6151 on the one - end side, at least one (a plurality in this embodiment, specifically four) first recess 6152 on the other - end side, and at least one (a plurality in this embodiment, specifically two) second recess 616 are formed. Each first recess 6151 on the one - end side and each first recess 6152 on the other - end side function as the first recess 615.

[0041] The number of the first recesses 6151 on the one - end side is the same as the number of the first protrusions 313 on the support shaft 31. Note that the number of the first recesses 6151 on the one - end side may be more than the number of the first protrusions 313 on the support shaft 31. The number of the first recesses 6152 on the other - end side is the same as the number of the first protrusions 313 on the support shaft 31. Note that the number of the first recesses 6152 on the other - end side may be more than the number of the first protrusions 313 on the support shaft 31. The number of the second recesses 616 is the same as the number of the second protrusions 317 on the support shaft 31. Note that the number of the second recesses 616 may be more than the number of the second protrusions 317 on the support shaft 31.

[0042] Each first recess 6151 on the one - end side fits with each first protrusion 313 of the support shaft 31 on the outer periphery of the support shaft 31 when the core body 61 is mounted from the one - end side of the core body 61. Each first recess 6151 on the one - end side is provided at the position of the one - end of the core body 61 and is recessed outward in the radial direction of the core body 61.

[0043] Each first recess 6151 on one end side is provided at angular intervals in the circumferential direction of the core body 61. Each first recess 6151 on one end side is provided at equal angular intervals in the circumferential direction of the core body 61. In the present embodiment, four first recesses 6151 to 6151 on one end side are provided at intervals of 90° in the circumferential direction of the core body 61. When the core body 61 is viewed from one end side, in the circumferential direction of the core body 61, if the angular position of the first first recess 6151 on one end side is taken as 0° which is the reference angle (this will also be used as the reference for the angular position with respect to the core body 61 in the following description), the angular positions of the second to fourth first recesses 6151 to 6151 on one end side are 90°, 180°, and 270°, respectively. This relationship of angular positions is the same as the relationship of the angular positions of the four first protrusions 313 to 313 on the support shaft 31.

[0044] Each first recess 6151 on one end side extends in the axial direction of the core body 61 at one end of the core body 61. Each first recess 6151 on one end side has an end. The end is located at a position shifted to the other end side of the core body 61 with respect to the position of the end face of one end of the core body 61 (hereinafter referred to as the "one end face") at one end of the core body 61. Each first recess 6151 on one end side extends to the one end face of the core body 61 and opens at the one end face of the core body 61. Each first recess 6151 on one end side expands on both sides in the circumferential direction of the core body 61 in the vicinity of the one end face of the core body 61 as it approaches the one end face of the core body 61.

[0045] Each first recess 6152 on the other end side fits onto each first protrusion 313 of the support shaft 31 when the core body 61 is mounted from the other end side of the core body 61 onto the outer periphery of the support shaft 31. Each first recess 6152 on the other end side is provided at the position of the other end of the core body 61 and is recessed radially outward of the core body 61.

[0046] Each other-end-side first recess 6152 is provided at angular intervals in the circumferential direction of the core body 61. Each other-end-side first recess 6152 is provided at equal angular intervals in the circumferential direction of the core body 61. In the present embodiment, four other-end-side first recesses 6152 are provided at 90° intervals in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the four other-end-side first recesses 6152 to 6152 is provided at the same angular position with respect to each of the four one-end-side first recesses 6151 to 6151. When the core body 61 is viewed from the one-end side, if the angular position of the first one-end-side first recess 6151 is set to 0° in the circumferential direction of the core body 61, the angular positions of each of the first to fourth other-end-side first recesses 6152 to 6152 are 0°, 90°, 180°, and 270°. This relationship of angular positions is the same as the relationship of the angular positions of the four first protrusions 313 to 313 on the support shaft 31, similar to each one-end-side first recess 6151.

[0047] Each other-end-side first recess 6152 extends in the axial direction of the core body 61 at the other end of the core body 61. Each other-end-side first recess 6152 has an end. The end is located at a position shifted toward the one-end side of the core body 61 with respect to the position of the end face of the other end of the core body 61 (hereinafter referred to as the "other end face") at the other end of the core body 61. Each other-end-side first recess 6152 extends to the other end face of the core body 61 and opens at the other end face of the core body 61. Each other-end-side first recess 6152 expands toward both sides in the circumferential direction of the core body 61 in the vicinity of the other end face of the core body 61 as it approaches the other end face of the core body 61.

[0048] Each second recess 616 engages with the second protrusion 317 of the support shaft 31 when the core body 61 is mounted on the outer periphery of the support shaft 31. Each second recess 616 is provided from the position of one end of the core body 61 to the position of the other end of the core body 61 and is recessed outward in the radial direction of the core body 61. Each second recess 616 has a smaller amount of recess outward in the radial direction with respect to the inner peripheral portion of the core body 61 (specifically, the inner peripheral surface of the core body 61) compared to each one-end-side first recess 6151 and each other-end-side first recess 6152. Therefore, it is possible to prevent a decrease in the strength of the core body 61 due to the formation of each second recess 616.

[0049] Each second recess 616 is provided at angular intervals in the circumferential direction of the core body 61. Each second recess 616 is provided at equal angular intervals in the circumferential direction of the core body 61. In the present embodiment, two second recesses 616, 616 are provided at an interval of 180° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the two second recesses 616, 616 is provided at the same angular position with respect to each of two one-end-side first recesses 6151, 6151 among the four one-end-side first recesses 6151. When the core body 61 is viewed from the one-end side, if the angular position of the first one-end-side first recess 6151 is 0° in the circumferential direction of the core body 61, the angular positions of the first and second second recesses 616, 616 are 0° and 180°, respectively. This relationship of the angular positions is the same as the relationship of the angular positions of the two second protrusions 317, 317 on the support shaft 31.

[0050] Each second recess 616 extends in the axial direction of the core body 61 across the position of one end of the core body 61 and the position of the other end of the core body 61. Each second recess 616 extends to one end face of the core body 61 and opens at one end face of the core body 61. Each second recess 616 is connected to each other in the circumferential direction of the core body 61 at the position of one end of the core body 61. That is, the second recess 616 is formed over the entire circumference of the core body 61 at the position of one end of the core body 61. Each second recess 616 extends to the other end face of the core body 61 and opens at the other end face of the core body 61. Each second recess 616 is connected to each other in the circumferential direction of the core body 61 at the position of the other end of the core body 61. That is, the second recess 616 is formed over the entire circumference of the core body 61 at the position of the other end of the core body 61.

[0051] Each second recess 616 includes a one-end-side guiding portion 6162, a other-end-side guiding portion 6163, and a guiding portion 6161.

[0052] The one - end - side guiding portion 6162 guides the second protrusion portion 317 when the core body 61 is mounted on the outer periphery of the support shaft 31 from one - end side of the core body 61. The one - end - side guiding portion 6162 is provided at a position closer to one end of the core body 61. The one - end - side guiding portion 6162 is provided on the one - end side of the core body 61 rather than at the axial center position of the core body 61. As it advances in the direction from one end of the core body 61 toward the other end of the core body 61, the one - end - side guiding portion 6162 has a reduced width dimension parallel to the circumferential direction of the core body 61. As it advances in the direction from one end of the core body 61 toward the other end of the core body 61, the one - end - side guiding portion 6162 narrows from both sides in the circumferential direction of the core body 61.

[0053] The other - end - side guiding portion 6163 guides the second protrusion portion 317 when the core body 61 is mounted on the outer periphery of the support shaft 31 from the other - end side of the core body 61. The other - end - side guiding portion 6163 is provided at a position closer to the other end of the core body 61. The other - end - side guiding portion 6163 is provided on the other - end side of the core body 61 rather than at the axial center position of the core body 61. As it advances in the direction from the other end of the core body 61 toward one end of the core body 61, the other - end - side guiding portion 6163 has a reduced width dimension parallel to the circumferential direction of the core body 61. As it advances in the direction from the other end of the core body 61 toward one end of the core body 61, the other - end - side guiding portion 6163 narrows from both sides in the circumferential direction of the core body 61.

[0054] The guiding portion 6161 guides the second protrusion portion 317 when the core body 61 is mounted on the outer periphery of the support shaft 31. The guiding portion 6161 is provided between the one - end - side guiding portion 6162 and the other - end - side guiding portion 6163. In this embodiment, the guiding portion 6161 is provided at the axial center of the core body 61. The guiding portion 6161 is provided on the other - end side of the core body 61 rather than at the position of the one - end - side guiding portion 6162. The guiding portion 6161 is continuous with the one - end - side guiding portion 6162. The guiding portion 6161 is provided on the one - end side of the core body 61 rather than at the position of the other - end - side guiding portion 6163. The guiding portion 6161 is continuous with the other - end - side guiding portion 6163.

[0055] The width dimension of the guide portion 6161 (dimension in the circumferential direction of the core body 61) is constant in the axial direction of the core body 61. The width dimension of the guide portion 6161 is substantially the same as the width dimension of the second protrusion 317 of the support shaft 31 (dimension in the circumferential direction of the support shaft 31), specifically, the width dimension of the main body portion of the second protrusion 317. The width dimension of the guide portion 6161 is slightly larger than the width dimension of the second protrusion 317 to an extent that allows the second protrusion 317 to move in the axial direction of the core body 61 with respect to the guide portion 6161.

[0056] Each second recess 616 can be said to include a free region, a transition region, and a restricted region. In each second recess 616, the regions corresponding to the positions of one end portion and the other end portion of the core body 61 are free regions. In the free regions, rotation of the core body 61 is allowed without being restricted. The regions of the one - end - side guide portion 6162 and the other - end - side guide portion 6163 are transition regions. In the transition regions, the rotatable range of the core body 61 becomes smaller as it approaches the axial center of the core body 61. The region of the guide portion 6161 is a restricted region. In the restricted region, rotation of the core body 61 is restricted so as to be substantially impossible.

[0057] The inner peripheral portion of the core body 61 includes at least one (a plurality in this embodiment, specifically two) inner peripheral surface portions 617. Each inner peripheral surface portion 617 has an inner peripheral surface of the core body 61 formed thereon. Each inner peripheral surface portion 617 is provided between one end portion and the other end portion of the core body 61. Each inner peripheral surface portion 617 is provided so as to be surrounded by the second recesses 616 in the circumferential direction of the core body 61.

[0058] Each inner peripheral surface 617 is provided at angular intervals in the circumferential direction of the core body 61. Each inner peripheral surface 617 is provided at equal angular intervals in the circumferential direction of the core body 61. In the present embodiment, two inner peripheral surfaces 617 are provided at an interval of 180° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the two inner peripheral surfaces 617, 617 is provided at an angular position shifted by 90° with respect to each of the two second recesses 616. When the core body 61 is viewed from one end side, if the angular position of the first one-end-side first recess 6151 is 0° in the circumferential direction of the core body 61, the angular positions of each of the first and second inner peripheral surfaces 617, 617 are 90° and 270°.

[0059] Each inner peripheral surface 617 extends in the axial direction at an intermediate position between one end of the core body 61 and the other end of the core body 61. However, each inner peripheral surface 617 does not extend to one end face of the core body 61. One end of the first inner peripheral surface 617 is continuous with the end of the second one-end-side first recess 6151. One end of the second inner peripheral surface 617 is continuous with the end of the fourth one-end-side first recess 6151. Each inner peripheral surface 617 does not extend to the other end face of the core body 61. The other end of the first inner peripheral surface 617 is continuous with the end of the second other-end-side first recess 6152. The other end of the second inner peripheral surface 617 is continuous with the end of the fourth other-end-side first recess 6152.

[0060] The shape of each inner peripheral surface 617 corresponds to the shape of the second recess 616. The portion of each inner peripheral surface 617 near one end extends toward both sides in the circumferential direction of the core body 61 as it proceeds from one end of the core body 61 toward the other end of the core body 61 so as to correspond to the shape of each one-end-side guiding portion 6162. The portion of each inner peripheral surface 617 near the other end extends toward both sides in the circumferential direction of the core body 61 as it proceeds from the other end of the core body 61 toward one end of the core body 61 so as to correspond to the shape of each other-end-side guiding portion 6163. The axial center portion of each inner peripheral surface 617 has a constant width dimension (dimension in the circumferential direction of the core body 61) in the axial direction of the core body 61 so as to correspond to the shape of each guiding portion 6161.

[0061] The core body 61 can be said to include a thin portion 618 and a thick portion 619. The thin portion 618 is the portion corresponding to each second recess 616. The thick portion 619 is thicker than the thin portion 618. The thick portion 619 is the portion corresponding to each inner peripheral surface 617.

[0062] At least one (a plurality in this embodiment, specifically two) first engaging recess 6152 and at least one (a plurality in this embodiment, specifically two) second engaging recess 6151 are further formed on the inner peripheral portion of the core body 61.

[0063] In each first engaging recess 6152, when the core body 61 is mounted on the outer periphery of the support shaft 31 from one end portion side of the core body 61, each protruding and retracting portion 316 is engaged. Each first engaging recess 6152 is provided at a position closer to the other end portion of the core body 61 and is recessed outward in the radial direction of the core body 61. Each first engaging recess 6152 has a stepped portion 615a facing the other end portion side of the core body 61.

[0064] The first engaging recesses 6152 are provided at angular intervals in the circumferential direction of the core body 61. The first engaging recesses 6152 are provided at equal angular intervals in the circumferential direction of the core body 61. In this embodiment, two first engaging recesses 6152 are provided at an interval of 180° in the circumferential direction of the core body 61. Moreover, in this embodiment, in the circumferential direction of the core body 61, each of the two first engaging recesses 6152, 6152 is provided at the same angular position with respect to each of the two inner peripheral surfaces 617, 617 as the first and second first engaging recesses 6152, 6152. When the core body 61 is viewed from one end portion side, when the angular position of the first one-end portion side first recess 6151 is 0° in the circumferential direction of the core body 61, the angular positions of each of the first and second first engaging recesses 6152, 6152 are 90° and 270°.

[0065] The first first engaging recess 6152 is integrally formed with the second other-end portion side first recess 6152. The first first engaging recess 6152 may be formed separately from the second other-end portion side first recess 6152. The first first engaging recess 6152 may be provided, for example, closer to the central portion in the axial direction of the core body 61 than the position of the second other-end portion side first recess 6152.

[0066] The second first engaging recess 6152 is formed integrally with the fourth other-end-side first recess 6152. The second first engaging recess 6152 may be formed separately from the fourth other-end-side first recess 6152. The second first engaging recess 6152 may be provided, for example, closer to the axial center of the core body 61 than the position of the fourth other-end-side first recess 6152.

[0067] In each second engaging recess 6151, when the core body 61 is mounted on the outer periphery of the support shaft 31 from the other-end side of the core body 61, each protruding / retracting portion 316 is engaged. Each second engaging recess 6151 is provided at a position closer to one end of the core body 61 and is recessed outward in the radial direction of the core body 61. Each second engaging recess 6151 has a stepped portion 615a facing one end side of the core body 61.

[0068] Each second engaging recess 6151 is provided at an angular interval in the circumferential direction of the core body 61. Each second engaging recess 6151 is provided at an equal angular interval in the circumferential direction of the core body 61. In the present embodiment, two second engaging recesses 6151 are provided at an interval of 180° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the two second engaging recesses 6151, 6151 is provided at the same angular position with respect to each of the two inner circumferential surfaces 617, 617 as the first and second second engaging recesses 6151, 6151. When the core body 61 is viewed from the one-end side, if the angular position of the first one-end-side first recess 6151 is 0° in the circumferential direction of the core body 61, the angular positions of each of the first and second second engaging recesses 6151, 6151 are 90° and 270°.

[0069] The first second engaging recess 6151 is formed integrally with the second one-end-side first recess 6151. The first second engaging recess 6151 may be formed separately from the second one-end-side first recess 6151. The first second engaging recess 6151 may be provided, for example, closer to the axial center of the core body 61 than the position of the second one-end-side first recess 6151.

[0070] The second second engaging recess 6151 is formed integrally with the fourth first recess 6151 on one end side. The second second engaging recess 6151 may be formed separately from the fourth first recess 6151 on one end side. The second second engaging recess 6151 may be provided, for example, closer to the axial center of the core body 61 than the position of the fourth first recess 6151 on one end side.

[0071] At least one (a plurality in this embodiment, specifically four) notch 6111 on one end side and at least one (a plurality in this embodiment, specifically four) notch 6112 on the other end side are formed in the core body 61. Each notch 6111 on one end side and each notch 6112 on the other end side function as the notch 611.

[0072] The moving part 314 can enter each notch 6111 on one end side from one end side of the core body 61. Each notch 6111 on one end side is provided at the position of one end of the core body 61 and is notched from one end face of the core body 61 toward the other end of the core body 61. Each notch 6111 on one end side penetrates the core body 61 in the radial direction of the core body 61. Each notch 6111 on one end side extends in the axial direction of the core body 61 at one end of the core body 61.

[0073] Each one-end-side notch portion 6111 is provided at angular intervals in the circumferential direction of the core body 61. Each one-end-side notch portion 6111 is provided at equal angular intervals in the circumferential direction of the core body 61. In the present embodiment, four one-end-side notch portions 6111 are provided at intervals of 90° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the four one-end-side notch portions 6111 to 6111 is provided at the same angular position with respect to each of the four one-end-side first concave portions 6151 to 6151. When the core body 61 is viewed from the one-end side, if the angular position of the first one-end-side first concave portion 6151 in the circumferential direction of the core body 61 is 0°, the angular positions of each of the first to fourth one-end-side notch portions 6111 to 6111 are 0°, 90°, 180°, and 270°. This relationship of angular positions is the same as the relationship of the angular positions of the four first protrusions 313 to 313 on the support shaft 31. Note that the first and third one-end-side notch portions 6111, 6111 are not essential. Only the second and fourth one-end-side notch portions 6111, 6111 may be provided.

[0074] The moving portion 314 can enter each other-end-side notch portion 6112 from the other-end side of the core body 61. Each other-end-side notch portion 6112 is provided at the position of the other end of the core body 61 and is notched from the other end surface of the core body 61 toward one end of the core body 61. Each other-end-side notch portion 6112 penetrates the core body 61 in the radial direction of the core body 61. Each other-end-side notch portion 6112 extends in the axial direction of the core body 61 at the other end of the core body 61.

[0075] Each other-end-side notch portion 6112 is provided at an angular interval in the circumferential direction of the core body 61. Each other-end-side notch portion 6112 is provided at an equal angular interval in the circumferential direction of the core body 61. In the present embodiment, four other-end-side notch portions 6112 are provided at intervals of 90° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the four other-end-side notch portions 6112 to 6112 is provided at the same angular position with respect to each of the four other-end-side first concave portions 6152 to 6152. When the core body 61 is viewed from one-end side, assuming that the angular position of the first one-end-side first concave portion 6151 is 0° in the circumferential direction of the core body 61, the angular positions of each of the first to fourth other-end-side notch portions 6112 to 6112 are 0°, 90°, 180°, and 270°. This relationship of angular positions is the same as the relationship of the angular positions of the four first protrusion portions 313 to 313 on the support shaft 31. Note that the first and third other-end-side notch portions 6112, 6112 are not essential. Only the second and fourth other-end-side notch portions 6112, 6112 may be provided.

[0076] The core body 61 is provided with at least one (a plurality of, specifically two in the present embodiment) one-end-side magnet 6131 and at least one (a plurality of, specifically two in the present embodiment) other-end-side magnet 6132. Each one-end-side magnet 6131 and each other-end-side magnet 6132 function as a magnet 613.

[0077] Each end - side magnet 6131 is provided at the position of one end of the core body 61. Each end - side magnet 6131 is provided in a first positional relationship in the circumferential direction of the core body 61. Each end - side magnet 6131 is provided at an angular interval in the circumferential direction of the core body 61. In the present embodiment, two end - side magnets 6131, 6131 are provided at an angular interval of 90° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body 61, each of the two end - side magnets 6131 is provided at a different angular position with respect to each of the four end - side first recesses 6151 - 6151. When the core body 61 is viewed from one end - side, if the angular position of the first end - side first recess 6151 is 0° in the circumferential direction of the core body 61, the angular positions of each of the first and second end - side magnets 6131, 6131 are 45° and 135°.

[0078] At one end of the core body 61, the same number of end - side holding portions 6141 as the number of end - side magnets 6131 are formed. Each end - side holding portion 6141 functions as a magnet holding portion 614 that holds the magnet 613. Each end - side holding portion 6141 holds each end - side magnet 6131. Each end - side holding portion 6141 is recessed inward in the radial direction of the core body 61 on the outer peripheral portion of the core body 61. Each end - side magnet 6131 is fitted into each end - side holding portion 6141, and a sealing member (not shown) is attached thereon. Note that the number of end - side holding portions 6141 may be more than the number of end - side magnets 6131. In this case, the end - side magnet 6131 is selectively fitted into each end - side holding portion 6141.

[0079] Each other-end-side magnet 6132 is provided at the position of the other end of the core body 61. Each other-end-side magnet 6132 is provided in a second positional relationship different from the first positional relationship in the circumferential direction of the core body 61. Each other-end-side magnet 6132 is provided at an angular interval in the circumferential direction of the core body 61. In the present embodiment, two other-end-side magnets 6132, 6132 are provided at an angular interval of 180° in the circumferential direction of the core body 61. Moreover, in the present embodiment, in the circumferential direction of the core body, each of the two other-end-side magnets 6132, 6132 is provided at a different angular position with respect to each of the four other-end-side first recesses 6152 to 6152. When the core body 61 is viewed from one end side, if the angular position of the first one-end-side first recess 6151 is 0° in the circumferential direction of the core body 61, the angular positions of each of the first and second other-end-side magnets 6132, 6132 are 45° and 225°.

[0080] At the other end of the core body 61, the same number of other-end-side holding portions 6142 as the number of other-end-side magnets 6132 are formed. Each other-end-side holding portion 6142 functions as a magnet holding portion 614 for holding the magnet 613. Each other-end-side holding portion 6142 holds each other-end-side magnet 6132. Each other-end-side holding portion 6142 is recessed inward in the radial direction of the core body 61 on the outer peripheral portion of the core body 61. Each other-end-side magnet 6132 is fitted into each other-end-side holding portion 6142, and a sealing member (not shown) is attached thereon. Note that the number of other-end-side holding portions 6142 may be larger than the number of other-end-side magnets 6132. In this case, each other-end-side magnet 6132 is selectively fitted into each other-end-side holding portion 6142.

[0081] -Combination of a winding body and a drug packaging device- As shown in FIG. 4, the core body 61 is mounted on the outer periphery of the support shaft 31. In a state where the core body 61 is mounted on the outer periphery of the support shaft 31, a part of the support shaft 31 protrudes from the core body 61. Specifically, the tip of the support shaft 31 protrudes from the core body 61. A part of the support shaft tip body 31B protrudes from the core body 61. Note that in a state where the core body 61 is mounted on the outer periphery of the support shaft 31, the support shaft 31 may not protrude from the core body 61.

[0082] In the wound body 6, as described above, the wrapping material 62 is wound around the outer periphery of the core body 61. In FIG. 4, the wrapping material 62 is omitted. In the present embodiment, the wrapping material 62 is classified into two types with respect to the sealing temperature. The wrapping material 62 belonging to the first type is heat-sealed at the first sealing temperature. The wrapping material 62 belonging to the second type is heat-sealed at a second sealing temperature different from the first sealing temperature.

[0083] In the present embodiment, one type of core body 61 can correspond to two types of wrapping materials 62. In the present embodiment, the orientation of the core body 61 with respect to the wrapping material 62 is selected according to the type of the wrapping material 62. When the wrapping material 62 belonging to the first type is wound, the orientation of the core body 61 with respect to the wrapping material 62 is selected such that one end portion of the core body 61 is on the side of the fold of the wrapping material 62. Hereinafter, the wound body 6 formed by winding the wrapping material 62 belonging to the first type may be referred to as the first wound body 6. When the wrapping material 62 belonging to the second type is wound, the orientation of the core body 61 with respect to the wrapping material 62 is selected such that the other end portion of the core body 61 is on the side of the fold of the wrapping material 62. Hereinafter, the wound body 6 formed by winding the wrapping material 62 belonging to the second type may be referred to as the second wound body 6.

[0084] When the first wound body 6 is attached to the support shaft 31, the core body 61 is attached to the outer periphery of the support shaft 31 from one end portion side of the core body 61. In this case, each first protrusion 313 and each first recess 6151 on the one end portion side are fitted together. Thereby, the support shaft 31 and the core body 61 can rotate integrally in the circumferential direction of the support shaft 31.

[0085] The core body 61 can be attached to the support shaft 31 at at least one (a plurality, specifically two in the present embodiment) angular positions with respect to the support shaft 31. Specifically, the core body 61 is attached to the support shaft 31 at an angular position where the first first recess 6151 on the one end portion side and the first protrusion 313 coincide. Alternatively, the core body 61 is attached to the support shaft 31 at an angular position where the first first recess 6151 on the one end portion side and the third first protrusion 313 coincide.

[0086] In a state where the core body 61 is mounted on the outer periphery of the support shaft 31, each first protrusion 313 is in contact with the end of each first recess 6151 on one end side, and each protruding and retracting portion 316 is caught by each first hook recess 6152, specifically, by the step portion 615a of each first hook recess 6152. Therefore, the core body 61 is prevented from shifting in the axial direction of the support shaft 31 with respect to the outer periphery of the support shaft 31, and the core body 61 is securely mounted on the outer periphery of the support shaft 31. Since each first protrusion 313 is in contact with the end of each first recess 6151 on one end side, the core body 61 is prevented from shifting in the mounting direction with respect to the support shaft 31. Since each protruding and retracting portion 316 is caught by each first hook recess 6152, the core body 61 is prevented from shifting in the removal direction with respect to the support shaft 31.

[0087] When the second winding body 6 is mounted on the support shaft 31, the core body 61 is mounted on the outer periphery of the support shaft 31 from the other end side of the core body 61. In this case, each first protrusion 313 and each first recess 6152 on the other end side are fitted together. As a result, the support shaft 31 and the core body 61 can rotate integrally in the circumferential direction of the support shaft 31.

[0088] The core body 61 can be mounted on the support shaft 31 at at least one (a plurality, specifically two in this embodiment) angular positions with respect to the support shaft 31. Specifically, the core body 61 is mounted on the support shaft 31 at an angular position where the first recess 6152 on the first other end side and the first protrusion 313 coincide. Alternatively, the core body 61 is mounted on the support shaft 31 at an angular position where the first recess 6152 on the first other end side and the third protrusion 313 coincide.

[0089] In a state where the core body 61 is mounted on the outer periphery of the support shaft 31, each first protrusion 313 is in contact with the end of each other-end side first recess 6152, and each protruding and retracting portion 316 is caught by each second hook recess 6151, specifically, the step portion 615a of each second hook recess 6151. Therefore, the core body 61 is prevented from shifting in the axial direction of the support shaft 31 with respect to the outer periphery of the support shaft 31, and the core body 61 is securely mounted on the outer periphery of the support shaft 31. By each first protrusion 313 being in contact with the end of each other-end side first recess 6152, the core body 61 is prevented from shifting in the mounting direction with respect to the support shaft 31. By each protruding and retracting portion 316 being caught by each second hook recess 6151, the core body 61 is prevented from shifting in the removal direction with respect to the support shaft 31.

[0090] The medicine packaging device 1 is configured to stop operating when each moving part 314 moves from the retracted position to the advanced position. The position of each moving part 314 is detected by a sensor. The medicine packaging device 1 becomes operable or inoperable based on the detection result by the sensor. The medicine packaging device 1 is operable when each moving part 314 is in the retracted position. The medicine packaging device 1 is inoperable when each moving part 314 is in the advanced position.

[0091] In a state where the winding body 6 is mounted on the support shaft 31, each moving part 314 is pushed by the end face formed by the packaging material 62 in the winding body 6. Therefore, each moving part 314 is located at the retracted position. At this time, the medicine packaging device 1 is operable.

[0092] When all of the packaging material 62 has been unwound from the winding body 6, only the core body 61 remains on the support shaft 31. The end face of the winding body 6 that was constituted by the packaging material 62 disappears. Therefore, each moving part 314 moves in the direction from the base end part of the support shaft 31 toward the tip end part of the support shaft 31. When the first winding body 6 was mounted on the support shaft 31, each moving part 314 enters each one-end-side notch 6111. When the second winding body 6 was mounted on the support shaft 31, each moving part 314 enters each other-end-side notch 6112. Thus, when each moving part 314 moves from the retracted position to the advanced position, the operation of the drug packaging device 1 is stopped.

[0093] The drug packaging device 1 is configured to be able to detect magnetism on at least one side (both sides in this embodiment) of the base end part side and the tip end part side of the support shaft 31. The magnetic detection part for detecting magnetism may be provided inside the support shaft 31, or may be provided outside the support shaft 31.

[0094] Such a drug packaging device 1 detects at least one of each one-end-side magnet 6131 and each other-end-side magnet 6132 (both in this embodiment) in a state where the winding body 6 is mounted on the support shaft 31. When the first winding body 6 is mounted on the support shaft 31, each one-end-side magnet 6131 is detected on the base end part side of the support shaft 31, and each other-end-side magnet 6132 is detected on the tip end part side of the support shaft 31. When the second winding body 6 is mounted on the support shaft 31, each other-end-side magnet 6132 is detected on the base end part side of the support shaft 31, and each one-end-side magnet 6131 is detected on the tip end part side of the support shaft 31. The drug packaging device 1 sets the seal temperature when heat-sealing the packaging material 62 based on the detection result. Therefore, the drug packaging device 1 can heat-seal the packaging material 62 at a seal temperature corresponding to the type of the packaging material 62.

[0095] -Mounting of the winding body by the operator, and removal of the core body- Next, the case where the operator mounts the winding body 6 on the support shaft 31 and the case where the operator removes the core body 61 remaining on the support shaft 31 after all of the packaging material 62 has been unwound from the winding body 6 will be described.

[0096] As shown in Fig. 5, when the core body 61 is mounted on the outer periphery of the support shaft 31, the support shaft 31 and the core body 61 are aligned with each other in the circumferential direction of the support shaft 31. In Fig. 5, the second protrusion 317 and the third protrusion are indicated by a two-dot chain line. In Fig. 5, for ease of understanding, the second protrusion 317 of the support shaft 31 is shown as moving in the axial direction of the core body 61 with respect to the core body 61. However, actually, it is the reverse, and the core body 61 moves in the axial direction of the support shaft 31 with respect to the second protrusion 317 of the support shaft 31.

[0097] When the core body 61 is mounted on the outer periphery of the support shaft 31, the support shaft 31 may be stationary in the circumferential direction, and the core body 61 may rotate in the circumferential direction with respect to this support shaft 31, or the core body 61 may be stationary in the circumferential direction, and the support shaft 31 may rotate in the circumferential direction with respect to this core body 61. Alternatively, both the support shaft 31 and the core body 61 may rotate in the circumferential direction respectively.

[0098] Here, regarding the alignment of the support shaft 31 and the core body 61, the case where the first winding body 6 is mounted on the support shaft 31 will be described. When the second winding body 6 is mounted on the support shaft 31, it is basically the same as the case where the first winding body 6 is mounted on the support shaft 31, except for the orientation of the core body 61. Therefore, the description of the case where the second winding body 6 is mounted on the support shaft 31 will be omitted.

[0099] When the operator mounts the first winding body 6 on the support shaft 31, first, the operator holds the first winding body 6 and places this first winding body 6 at a position ahead of the tip of the support shaft 31. The operator directs one end of the core body 61 toward the support shaft 31. The operator aligns the central axis of the core body 61 with the central axis of the support shaft 31. After that, the operator moves the first winding body 6 in the mounting direction with respect to the support shaft 31.

[0100] When the operator moves the first winding body 6 in the mounting direction with respect to the support shaft 31, one end of the core body 61 is inserted into the tip of the support shaft 31. At the position of one end of the core body 61, the second recess 616 is formed over the entire circumference of the core body 61. Therefore, the operator does not need to intentionally align the support shaft 31 and the core body 61 in the circumferential direction of the support shaft 31. Therefore, the mounting operation of the winding body 6 with respect to the support shaft 31 becomes easy.

[0101] A new winding body 6 in which the packaging material 62 has not been consumed is heavy. For the operator, it is difficult to align the support shaft 31 and the core body 61 in the circumferential direction of the support shaft 31 while lifting such a winding body 6. Therefore, the fact that it is not necessary to intentionally align the support shaft 31 and the core body 61 in the circumferential direction of the support shaft 31 is a great advantage for the operator.

[0102] When the operator moves the first winding body 6 in the mounting direction with respect to the support shaft 31, each protruding and retracting portion 316 comes into contact with each inner peripheral surface portion 617. However, each protruding and retracting portion 316 is pushed radially inward of the support shaft 31 by each inner peripheral surface portion 617. Therefore, the operator can move the winding body 6 in the mounting direction with respect to the support shaft 31 without any trouble.

[0103] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, as shown in FIG. 5, each second protruding portion 317 enters each one-end-side guiding portion 6162. Specifically, the first second protruding portion 317 enters the one-end-side guiding portion 6162 of the first second recess 616, and the second second protruding portion 317 enters the one-end-side guiding portion 6162 of the second second recess 616. Alternatively, the first second protruding portion 317 enters the one-end-side guiding portion 6162 of the second second recess 616, and the second second protruding portion 317 enters the one-end-side guiding portion 6162 of the first second recess 616. Which of the one-end-side guiding portions 6162 each second protruding portion 317 enters is determined by the positional relationship between the support shaft 31 and the core body 61 in the circumferential direction of the support shaft 31 at that time.

[0104] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, as shown in FIG. 5, each second protrusion 317 is guided by each one-end-side guiding portion 6162. Each one-end-side guiding portion 6162 guides each second protrusion 317 so that each first protrusion 313 and each one-end-side first recess 6151 are aligned in the circumferential direction of the support shaft 31. Therefore, the operator only needs to move the winding body 6 in the mounting direction with respect to the support shaft 31. The operator does not need to intentionally align the support shaft 31 and the core body 61 in the circumferential direction of the support shaft 31. Therefore, the mounting operation of the winding body 6 with respect to the support shaft 31 becomes easy.

[0105] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, as shown in FIG. 5, each second protrusion 317 enters each guiding portion 6161 and is guided by each guiding portion 6161. Each guiding portion 6161 guides each second protrusion 317 so that the state where each first protrusion 313 and each one-end-side first recess 6151 are aligned in the circumferential direction of the support shaft 31 is maintained. Therefore, the operator only needs to move the winding body 6 in the mounting direction with respect to the support shaft 31. The operator does not need to intentionally maintain the state where the support shaft 31 and the core body 61 are aligned in the circumferential direction of the support shaft 31. Therefore, the mounting operation of the winding body 6 with respect to the support shaft 31 becomes easy.

[0106] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, the third protrusion enters one of the guide portions 6161 and is guided by one of the guide portions 6161. When the first second protrusion 317 is guided by the first guide portion 6161, the third protrusion 318 is continuously guided by this first guide portion 6161. When the first second protrusion 317 is guided by the second guide portion 6161, the third protrusion 318 is continuously guided by this second guide portion 6161. The third protrusion 318 is guided by one of the guide portions 6161 so that the state where each first protrusion 313 and each one - end - side first recess 6151 are aligned in the circumferential direction of the support shaft 31 is maintained. Therefore, the operator only needs to move the winding body 6 in the mounting direction with respect to the support shaft 31. The operator does not need to intentionally position the state where the support shaft 31 and the core body 61 are aligned in the circumferential direction of the support shaft 31. Therefore, the mounting operation of the winding body 6 with respect to the support shaft 31 becomes easy.

[0107] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, each first protrusion 313 enters each one - end - side first recess 6151. When the third protrusion 318 is guided by the first guide portion 6161, the first first protrusion 313 enters the first one - end - side first recess 6151, the second first protrusion 313 enters the second one - end - side first recess 6151, the third first protrusion 313 enters the third one - end - side first recess 6151, and the fourth first protrusion 313 enters the fourth one - end - side first recess 6151. When the third protrusion is guided by the second guide portion 6161, the first first protrusion 313 enters the third one - end - side first recess 6151, the second first protrusion 313 enters the fourth one - end - side first recess 6151, the third first protrusion 313 enters the first one - end - side first recess 6151, and the fourth first protrusion 313 enters the second one - end - side first recess 6151.

[0108] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, the end surface formed by the wrapping material 62 in the first winding body 6 abuts on each moving portion 314 located at the forward position.

[0109] When the operator further moves the first winding body 6 in the mounting direction with respect to the support shaft 31, each first protrusion 313 and each one - end - side first recess 6151 are fitted together. Each first protrusion 313 abuts against the end of each one - end - side first recess 6151, each protruding and retracting portion 316 disengages from the inner peripheral surface portion 617 and protrudes outward in the radial direction of the support shaft 31 and is hooked on each first engaging recess 6152. Each moving portion 314 is pushed by the end face formed by the packaging material 62 in the first winding body 6 and is moved from the forward position to the backward position.

[0110] In this way, the mounting of the first winding body 6 to the support shaft 31 is completed. After that, the operator unwinds the packaging material 62 from the winding body 6 and sets this packaging material 62 in the packaging material conveying portion 4 and the package forming portion 5.

[0111] When all of the packaging material 62 is unwound from the winding body 6 by the operation of the drug packaging device 1, only the core body 61 remains on the support shaft 31. The operator removes the core body 61 from the support shaft 31. When the operator removes the core body 61 from the support shaft 31, the operator holds the core body 61 and moves it in the removing direction. At this time, although each protruding and retracting portion 316 is hooked on each first engaging recess 6152, each protruding and retracting portion 316 is pushed radially inward of the support shaft 31 by the inner peripheral surface portion 617 of this core body 61 as the core body 61 moves. Therefore, the operator can move the core body 61 in the removing direction with respect to the support shaft 31 without any trouble.

[0112] One part is repeated. However, in the present embodiment as described above, 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 conveyance unit 4 (the tension adjustment mechanism 41 shown in FIG. 1) is also provided on this base. The support shaft 31 is substantially cylindrical. The support shaft 31 has a cylindrical outer peripheral portion. The support shaft 31 has a base end portion (the left portion in the drawing) and a tip end portion (the right portion in the drawing). The base end portion 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 that is located on the base end side of the main shaft portion 311 and has 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 drawing.

[0113] The support shaft 31 is provided rotatably with respect to the base and supports the winding body 6 (core body 61). The support shaft 31 is driven to rotate by a drive unit such as a stepping motor (not shown) provided inside the base. The support shaft 31 rotates in both the unwinding direction and the winding direction of the packaging material 62. Further, corresponding to the supply of the packaging material 62 to the package forming portion 5, the rotation of the support shaft 31 is made intermittent. The support shaft 31 is supported cantilevered with respect to the base, and the tip end portion of the support shaft 31 is open. For this reason, as shown in FIG. 2, the core body 61 in the winding body 6 is arranged at an axially extended position on the open side of the support shaft 31, and the winding body 6 is inserted axially from the tip end side toward the base end side, whereby the winding body 6 (only the core body 61 is shown in the drawing) can be attached to the support shaft 31 as shown in FIG. 4. The winding body 6 is attached to the support shaft 31 so as not to be relatively rotatable.

[0114] The support shaft 31 of the present embodiment is formed to be longer in the axial direction than the winding body 6. For this reason, as shown in FIG. 4, a part of the support shaft 31 (support shaft tip body 31B) protrudes from the core body 61 in the mounted state (mounted state on the support shaft main body 31A). However, it is not limited to this, and the other end portion (described later) of the core body 61 in the mounted state and the tip end portion of the support shaft 31 may coincide.

[0115] Also, a part on the tip side of the support shaft 31 protruding from the core body 61 (the part where the guide projection 317 is formed) is a support shaft tip body 31B that is separate from the support shaft main body 31A which is the base end side part of the support shaft 31, and is attached to the support shaft main body 31A. This support shaft tip body 31B can be used in combination with the winding body 6 of the present embodiment. The attachment of the support shaft tip body 31B to the support shaft main body 31A is, for example, by diverting a fitting structure for attaching a tip cover provided on the support shaft provided in an existing drug packaging device (attaching the support shaft tip body 31B after removing the tip cover), or by adhesion to an existing support shaft (not limited to this, and various attachment modes are possible). The support shaft main body 31A has a cylindrical outer peripheral portion. The support shaft tip body 31B becomes a mounting auxiliary portion that is a part of the support shaft 31 in a state of being attached to the support shaft main body 31A. This configuration can be formed into the support shaft 31 of the present embodiment, for example, by attaching it so as to replace a lid member provided at the tip of a short support shaft. The support shaft tip body (mounting auxiliary portion) 31B attached to the tip portion of the support shaft main body 31A can form the support shaft 31 of the present embodiment without significantly modifying the support shaft provided in an existing drug packaging device. Therefore, the combination of the winding body 6 and the drug packaging device 1 of the present embodiment can be realized at low cost. However, for example, in a newly manufactured support shaft 31, it may have an integral structure in which the support shaft main body 31A and the support shaft tip body 31B are inseparable, rather than such a separate structure. Note that even for a newly manufactured support shaft 31, a separate structure can be adopted. For example, when arranging a magnetic detection portion or the like inside the support shaft 31, since the inside can be opened as needed, the separate structure is useful.

[0116] As shown in Fig. 2, a plurality (four in this embodiment) of hooking 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 (with a space) in the circumferential direction (rotation 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 for a predetermined distance in the tip direction from the base end of the support shaft 31. A moving portion is provided on a part of the plurality of hooking protrusions 313 to 313 (one hooking protrusion 313 every other one in the circumferential direction in this embodiment). In this embodiment, as this moving portion, a rod-shaped packing break detection pin 314 projects radially from a part of the hooking protrusions 313 to 313. The tip of the packing break detection pin 314 is set to be located radially outside the outer peripheral surface of the core body 61 when the winding body 6 is attached to the support shaft 31. Further, the hooking protrusion 313 provided with the packing break detection pin 314 is provided with a notch 315 that penetrates radially and extends axially.

[0117] The packaging material break detection pin 314 is biased toward the tip side (right side in the figure) in the axial direction of the support shaft 31 by the biasing force of a spring (not shown) provided inside the support shaft 31. When the wound body 6 around which the packaging material 62 is wound is attached to the support shaft 31, the packaging material break detection pin 314 is pushed laterally by the packaging material 62 laminated radially on the outer periphery of the core body 61, and thus is moved toward the proximal end side in the axial direction against the spring biasing force. In the core body 61 of the wound body 6, a notch 611 that penetrates in the radial direction and extends in the axial direction is provided at a portion that coincides with the packaging material break detection pin 314 when attached to the support shaft 31, similar to the support shaft 31. The notch 611 is composed of a one-end-side notch 6111 provided on one-end side of the core body 61 and a the-other-end-side notch 6112 provided on the other-end side of the core body 61. The one-end-side notch 6111 is provided at the same position as the one-end-side hook recess 6151 in the circumferential direction of the core body 61, and has a shape that is notched from the end face of one end of the core body 61 toward the other end of the core body 61. The other-end-side notch 6112 is provided at the same position as the other-end-side hook recess 6152 in the circumferential direction of the core body 61, and has a shape that is notched from the end face of the other end of the core body 61 toward one end of the core body. The notch 611 allows the packaging material break detection pin 314 to enter when the notch 611 is located at the proximal end portion of the support shaft 31.

[0118] The notch 611 is arranged to coincide with the notch 315 of the support shaft 31 in the circumferential direction. For this reason, the core body 61 may be rotated in the circumferential direction with respect to the support shaft 31 by an operator for alignment of the notch 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 remains), the pushing by the packaging material 62 stops, so that the spring-biased packaging material break detection pin 314 moves toward the tip side in the axial direction and enters the notch 611 (see FIG. 4). By detecting with a sensor or the like that the packaging material break detection pin 314 has entered the notch 611 in this way, it is possible to detect a break in the packaging material. By detecting that all of the packaging material 62 has been unwound from the wound body 6, for example, the operation of the drug packaging device 1 is stopped. Specifically, the packaging material supply unit 3 can be automatically stopped.

[0119] On the outer peripheral portion (specifically, the outer peripheral surface) of the support shaft 31, a protruding and retracting portion 316 protrudes. At least one protruding and retracting portion 316 (although not shown in the figure, there are two in this embodiment) is provided. When a plurality of protruding and retracting portions 316 are provided as in this embodiment, these plurality of protruding and retracting portions 316 are provided at regular intervals (with a gap) in the circumferential direction. In this embodiment, the two protruding and retracting portions 316 are positioned at equal intervals in the circumferential direction (that is, at an interval of 180 degrees in terms of angle). Also, in this embodiment, each protruding and retracting portion 316 is provided at the same position in the circumferential direction as any one of a plurality (four in this embodiment) of engaging protrusions 313 to 313. Each protruding and retracting portion 316 of this embodiment is provided at the same position in the circumferential direction as the engaging protrusion 313 having the packaging material break detection pin 314 and the notch 315. Also, each protruding and retracting portion 316 is provided at a position different from each guide protrusion 317 and sub-guide protrusion 318 in the circumferential direction. In this embodiment, they are provided with a 90-degree shift in terms of angle. The protruding and retracting portion 316 is, for example, spherical or hemispherical, and is a protrusion that is urged in the radially outward direction by a spring provided inside the support shaft 31, and a part of it protrudes from the outer peripheral surface of the support shaft 31. The protruding and retracting portion 316 is provided on the outer peripheral surface of the support shaft 31 so as to be able to protrude and retract.

[0120] The engaging portion 316 engages with a stepped portion 615a (see FIG. 3) that is located on the distal end side of the support shaft 31 in a hooking recess 615 formed so as to be recessed radially outward in the inner peripheral portion of the core body 61. The other-end-side hooking recess 6152 is where the spring-biased engaging portion 316 catches when the core body 61 is attached to the support shaft 31 from one end side. The one-end-side hooking recess 6151 is where the spring-biased engaging portion 316 catches when the core body 61 is attached to the support shaft 31 from the other end side. Therefore, in a state where the core body 61 is attached to the outer periphery of the support shaft 31, the engaging portion 316 catches on the hooking recess 615, preventing the core body 61 from shifting relative to the support shaft 31 in the direction from the proximal end portion to the distal end portion of the support shaft 31. Thus, the winding body 6 can be reliably attached to the support shaft 31. On the other hand, since the engaging portion 316 is spring-biased, when removing the core body 61 from the support shaft 31, for example, if the core body 61 is axially moved with a force that overcomes the biasing force of this spring, the core body 61 moves relative to the support shaft 31. Therefore, when removing the core body 61 from the support shaft 31, the operation can be performed without any particular problem. Incidentally, during the attachment of the core body 61 to the support shaft 31, before the engaging portion 316 engages with the stepped portion 615a, the engaging portion 316 is in contact with the inner peripheral surface portion 617 of the core body 61. At this time, since the engaging portion 316 is being pushed by the inner peripheral surface portion 617, it is moving in the radially inward direction.

[0121] At the tip of the support shaft 31 (main shaft portion 311), at least one (two in this embodiment) guide projection 317 as a second projection is formed. When a plurality of guide projections 317 are formed, these plurality of guide projections 317 to 317 are provided at regular intervals (spaced apart) in the circumferential direction. In this embodiment, there is a 180-degree angular gap. Each guide projection 317 projects radially outward from the outer peripheral surface of the tip of the support shaft 31. Each guide projection 317 projects at the same position in the circumferential direction as a part (two out of four in this embodiment) of the plurality of engaging projections 313 to 313. Specifically, it projects at the same position in the circumferential direction as the engaging projection 313 that does not have the packing break detection pin 314 and the notch 315. Also, each guide projection 317 has a smaller amount of radial outward projection with respect to the outer peripheral portion of the support shaft main body 31A than each engaging projection 313.

[0122] As shown in FIG. 2, the guide projection 317 integrally includes a main body portion 3171 having a constant width and a tapered portion 3172 provided on the tip side of the main body portion 3171 and having a reduced width dimension toward the tip. The tapered portion 3172 has a slope at the widthwise end. In this embodiment, this slope is formed linearly in a radial view, but it is not limited to this, and other shapes such as a curved line shape can also be used. Also, in this embodiment, this slope is symmetric with respect to the axial direction, but it may be an asymmetric shape.

[0123] On the outer peripheral portion of the support shaft 31 and at an intermediate position between the base end portion and the tip of the support shaft 31, a sub-guide projection 318 as a third projection that projects radially outward is formed. The sub-guide projection 318 is formed at least one (one in this embodiment) continuously on the base end side of the guide projection 317 in the main shaft portion 311. As described above, since two guide projections 317 are formed in this embodiment, the sub-guide projections 318 are arranged on the axial extension line on the base end side of one of the guide projections 317 (the guide projection 317 shown in FIG. 2). Also, an engaging projection 313 is located on the base end side of the sub-guide projection 318.

[0124] This auxiliary guide projection 318 is provided at the same position as the guide projection 317 in the circumferential direction around the central axis, and the amount of radial outward protrusion with respect to the outer peripheral portion of the support shaft 31 is the same as that of the guide projection 317. When the core body 61 is mounted on the outer periphery of the support shaft 31, the auxiliary guide projection 318 is guided by the guide portion 6161 so that the engaging projection 313 and the engaging recess 615 are maintained in a circumferentially aligned state around the central axis.

[0125] As the core body 61 is inserted into the support shaft 31, the inner peripheral surface portion 617 of the core body 61 abuts against the guide projection 317, whereby the circumferential alignment of the core body 61 with respect to the support shaft 31 can be performed (the alignment of the core body 61 will be described later). Fig. 5 shows this state. Incidentally, in Fig. 5, for ease of understanding, the guide projection 317 (two-dot chain line) is shown as moving in the axial direction with respect to the core body 61, but actually, contrary to the illustration, the core body 61 moves in the axial direction with respect to the guide projection 317. At this time, the support shaft 31 and the core body 61 are relatively rotated and aligned in the circumferential direction. In the present embodiment, as the insertion of the core body 61 into the support shaft 31 progresses and the inner peripheral surface portion 617 of the core body 61 no longer abuts against the guide projection 317, subsequently, the circumferential edge of the inner peripheral surface portion 617 of the core body 61 abuts against the auxiliary guide projection 318, whereby the circumferential alignment of the core body 61 with respect to the support shaft 31 can be continued. Therefore, stable alignment during the insertion of the core body 61 is possible. During alignment, the support shaft 31 may be 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 may be immovable in the circumferential direction, and the support shaft 31 may rotate in the circumferential direction with respect to the core body 61. Both the support shaft 31 and the core body 61 may rotate in the circumferential direction respectively.

[0126] As shown in FIG. 2, the core 61 of the wound body 6 has a cylindrical (circular cylindrical) or tubular (circular tubular) shape with a circular cross-section in the radial direction. The core 61 has a cylindrical inner peripheral portion. As shown in FIG. 1, the wrapping material 62 is wound around the outer peripheral surface of the core 61. The outer diameter dimension of the core 61 is constant in the axial direction. Therefore, no step appears on the outer peripheral surface of the core 61, so that the wrapping material 62 can be wound without making a crease. The core 61 is detached (mounted and removed) by being moved axially with respect to the outer periphery of the support shaft 31 in the wrapping material supply unit 3. The core 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 61 has one end portion and the other end portion. One end portion is a portion (left back portion) close to the support shaft 31 in FIG. 2, and the other end portion is a portion (right front portion) far from the support shaft 31 in FIG. 2. However, the core 61 of the present embodiment has the same shape at one end portion and the other end portion except for the plurality of magnet holding portions 614 to 614, and is symmetrically shaped with respect to the axial center. By making it symmetrically shaped, the core 61 can be mounted on the support shaft 31 from either the one end portion side or the other end portion side. Therefore, since it is possible to distinguish which side of the one end portion and the other end portion is mounted toward the support shaft 31 by the permanent magnets (magnets 613 to 613) mounted on the plurality of magnet holding portions 614 to 614, it is possible to make one core 61 of the same shape correspond to at least two types of wrapping materials 62. Therefore, the management during the manufacture of the wound body 6 is easy.

[0127] The core body 61 may be attached to the support shaft 31 from one end side or from the other end side according to the type of the wrapping material 62 to be wound, with the normal direction (mounting direction) being specified. When mounting, the core body 61 is axially moved from the tip end portion of the support shaft 31 toward the base end portion. The core body 61 is provided with notch portions 611 at both ends. The notch portions 611 are provided at positions corresponding to the wrapping material break detection pins 314 that protrude radially outward from the support shaft 31 when the core body 61 is attached to the support shaft 31. The notch portions 611 penetrate the core body 61 in the radial direction and have a space that opens to the end face of the core body 61. In this space, the wrapping material break detection pins 314 are axially movable along the support shaft 31. This movement is made after the wrapping material 62 has been pulled out from the wound body 6 and has disappeared (FIG. 4 shows the state after the movement).

[0128] The core body 61 includes a plurality of magnet holding portions 614 to 614 that hold a combination of permanent magnets (magnets 613 to 613) corresponding to a magnetic detection portion such as a magnetic sensor provided in the wrapping material supply unit 3 for identifying the wound body 6. In the present embodiment, at one end portion of the core body 61, two magnet holding portions 614, 614 are provided with a 90-degree separation in the circumferential direction. And at the other end portion of the core body 61, two magnet holding portions 614, 614 are provided with a 180-degree separation in the circumferential direction. Thus, in the present embodiment, the positions where the magnet holding portions 614 are provided are different between the one end portion and the other end portion. For this reason, when permanent magnets (magnets 613 to 613) are arranged in all of the plurality of magnet holding portions 614 to 614, the positional relationships of the permanent magnets (magnets 613 to 613) arranged at each end portion become different.

[0129] Among the plurality of magnet holders 614 to 614, permanent magnets (magnets 613 to 613) may be arranged in a selected predetermined number of magnet holders 614 to 614. Specifically, the "identification of the winding body 6" is to identify the material of the packaging material 62, which is related to the seal temperature at which proper adhesion is achieved when the packaging material 62 is adhered by heat sealing. In the plurality of magnet holders 614 to 614, the magnetic detection unit may detect and identify the number of magnet holders 614 in which permanent magnets (magnets 613 to 613) are arranged, the polarity of the permanent magnets (magnets 613 to 613), or the strength of the magnetic force, etc. In a drug packaging device configured to perform the identification of the winding body 6 by means other than magnetism, such as electromagnetic detection using a wirelessly identifiable RFID tag such as an IC chip or optical detection using a two-dimensional code, or a drug packaging device in which the magnetic detection unit is removed or invalidated by modification, this magnet holder 614 is unnecessary. In the configuration for performing the electromagnetic detection, for example, an RFID tag or the like is arranged in the internal space of the core body 61. An RFID tag or the like may be arranged on the inner peripheral surface or the outer peripheral surface of the core body 61.

[0130] At one end of the core body 61, a plurality of one-end-side magnets 6131 are provided in a first positional relationship in the circumferential direction of the core body 61. On the other hand, at the other end of the core body 61, a plurality of other-end-side magnets 6132 are provided in a second positional relationship different from the first positional relationship in the circumferential direction of the core body 61. In the state where the core body 61 is mounted on the outer periphery of the support shaft 31, the drug packaging device 1 detects at least one of the plurality of one-end-side magnets 6131 and the plurality of other-end-side magnets 6132 with a magnetic detection unit, and sets the seal temperature when heat-sealing the packaging material 62.

[0131] The core body 61 is provided with a hooking recess 615 as a first recess on the inner circumference, a guiding recess 616 as a second recess, and an inner circumferential surface portion 617. A plurality of sets of the hooking recess 615, the guiding recess 616, and the inner circumferential surface portion 617 are provided in the circumferential direction. These can be provided at equal intervals in the circumferential direction. In the present embodiment, four sets of the hooking recesses 615 are provided at equal intervals in the circumferential direction, and two sets of the guiding recesses 616 and the inner circumferential surface portions 617 are provided at equal intervals in the circumferential direction. However, only one set can be provided, or a plurality of sets can be provided at unequal intervals. Further, as shown in FIGS. 2 and 3, these portions 615 to 617 are provided symmetrically in the axial direction (with the axial center as a reference).

[0132] The hooking recess 615 is composed of a one-end-side hooking recess 6151 as a one-end-side first recess provided on the inner circumference on one-end side of the core body 61, and a the-other-end-side hooking recess 6152 as a the-other-end-side first recess provided on the inner circumference on the other-end side of the core body 61. Among the hooking recesses 615, the portion located on the proximal end side in the mounted state on the support shaft 31 fits into the hooking protrusion 313 provided on the support shaft 31, and thereby transmits a rotational force in the circumferential direction between the support shaft 31. That is, in a state where the core body 61 is mounted on the outer circumference of the support shaft main body 31A, the hooking protrusion 313 and the hooking recess 615 are fitted together, so that the support shaft main body 31A and the core body 61 can rotate integrally around the central axis of the outer peripheral portion of the support shaft main body 31A. The number of the hooking recesses 615 matches the number of the hooking protrusions 313 on the support shaft 31. Further, the number of sets composed of the guiding recesses 616 and the inner circumferential surface portions 617 matches the number of the guiding protrusions 317 on the support shaft 31. However, the number of the hooking recesses 615 can be made larger than the number of the hooking protrusions 313 on the support shaft 31. Also, the number of sets composed of the guiding recesses 616 and the inner circumferential surface portions 617 can be made larger than the number of the guiding protrusions 317 on the support shaft 31.

[0133] The guide recess 616 is provided along the axial direction on the inner circumference of the core body 61. The inner diameter dimension of the guide recess 616 is larger than the outer diameter dimension of the support shaft 31. The guide recess 616 has a smaller amount of recess radially outward with respect to the inner circumferential portion of the core body 61 (more specifically, the inner circumferential surface, and more specifically, the inner circumferential surface portion 617 or the inner circumferential surface of the thick portion 619) compared to the engaging recess 615 (the one-end-side engaging recess 6151 and the other-end-side engaging recess 6152). Therefore, it is possible to prevent a decrease in the strength of the core body 61 due to the recess. The guide recess 616 is formed over the entire circumference in the circumferential direction of the core body 61 at the positions of one end and the other end of the core body 61 (the portions 6162a and 6163a shown in FIG. 3). Therefore, when the core body 61 is externally inserted with respect to the support shaft tip body 31B, it is not necessary to align the support shaft tip body 31B and the core body 61 around the central axis, so the operation can be facilitated. The guide recess 616 positions the core body 61 in the circumferential direction with respect to the support shaft 31 by engaging with the guide projection 317 and the sub-guide projection 318 when the core body 61 is attached to the support shaft 31. That is, when the core body 61 is attached to the outer circumference of the support shaft main body 31A, the guide projection 317, the sub-guide projection 318, and the guide recess 616 are engaged with each other, so that the guide projection 317, the sub-guide projection 318, and the guide recess 616 are aligned in the circumferential direction around the central axis of the outer circumferential portion of the support shaft main body 31A. This guide recess 616 has a positioning portion 6161 that is located at the axial center, has a constant width dimension (circumferential dimension), and extends in the axial direction, and a guiding portion that continuously extends in the axial direction on one end side or the other end side of the positioning portion 6161 and has a width dimension (circumferential dimension) that expands from the axial center toward one end side or the other end side. This guiding portion is composed of a one-end-side guiding portion 6162 provided at a position near one end of the core body 61 and a other-end-side guiding portion 6163 provided at a position near the other end of the core body 61. The width dimension of the positioning portion 6161 is substantially the same as the width dimension of the guide projection 317. Specifically, it is larger (slightly larger) than the width dimension of the guide projection 317 to the extent that axial movement of the core body 61 with respect to the guide projection 317 can be allowed.

[0134] Since the circumferential dimensions of each of the guiding portions 6162, 6163 decrease as they go from one end side or the other end side toward the axial center, the core body 61 can be moved circumferentially in accordance with these decreases (see FIG. 5 regarding the one end side guiding portion 6162, provided that FIG. 5 shows the movement and non-movement of the core body 61 and the guiding protrusion 317 in a reverse manner from the actual situation). Then, the engaging recess 615 of the core body 61 coincides with the engaging protrusion 313 of the support shaft 31. In this way, the core body 61 rotates with respect to the support shaft 31 and is positioned circumferentially.

[0135] In this way, when the core body 61 is mounted on the outer periphery of the support shaft 31, each of the guiding portions 6162, 6163 guides the guiding protrusion 317 so that the engaging protrusion 313 and the one end side engaging recess 6151 or the other end side engaging recess 6152 are positioned circumferentially around the central axis (from the reverse perspective, each of the guiding portions 6162, 6163 is guided by the guiding protrusion 317).

[0136] Note that, at the inner peripheral portion of the core body 61, with respect to each of the portions 6162a, 6163a (see FIG. 3) corresponding to the position of one end of the core body 61 and the position of the other end of the core body 61, the effect of moving the core body 61 circumferentially by abutting against the guiding protrusion 317 is not exerted. These portions 6162a, 6163a act to facilitate the attachment of the core body 61 to the support shaft 31. That is, the inner diameter dimensions of these portions 6162a, 6163a are larger than the outer diameter dimension of the support shaft 31. That is, the inner diameters of these portions 6162a, 6163a have a "loose" relationship with a margin with respect to the outer diameter of the support shaft 31. For this reason, the insertion of the wound body 6 (core body 61) onto the support shaft 31 is easier compared to a configuration without dimensional margin. Incidentally, since the wound body 6 with the wrapping material 62 wound around the core body 61 is heavy (especially, a new wound body 6 is particularly heavy because the wrapping material 62 has not been consumed at all), the ease of insertion is a great advantage for the user of the pharmaceutical packaging device 1. Incidentally, this effect is also the effect of the thin wall portion 618 described later.

[0137] Here, each of the portions 6162a and 6163a can also be said to be a "free region" that allows the rotation of the core body 61 without restricting it. Further, the positioning portion 6161 can also be said to be a "restricted region" that is restricted so that the rotation of the core body 61 is substantially impossible (specifically, there is only a circumferential play to the extent that the guide recess 616 of the core body 61 is axially displaced with respect to the guide projection 317 and the sub-guide projection 318 of the support shaft 31). Also, each of the guiding portions 6162 and 6163 can also be said to be a "transition region" where the rotatable range of the core body 61 is smaller on the axially central side than on one end side and the other end side in the axial direction. The guide recess 616 extends from one end side in the axial direction toward the axial center and is continuous in the order of the free region, the transition region, and the restricted region. Then, from the axial center toward the other end side in the axial direction, it is further continuous with the transition region and the free region.

[0138] The inner circumferential surface portion 617 is a portion that is circumferentially adjacent to the guide recess 616. The inner circumferential surface portion 617 is made thicker (has a larger radial dimension) than the guide recess 616. The inner circumferential surface portion 617 is provided at the axial center of the core body 61, does not reach the edge of the core body 61 at both axial end sides, and the tip is located between the axial center and the edges at both axial end sides. The tip portion of the inner circumferential surface portion 617 has a shape corresponding to the shapes of the respective guiding portions 6162 and 6163, and the circumferential dimension expands as it goes from one end side toward the axial center, and the circumferential dimension shrinks as it goes from the axial center toward the other end side. The shape of the inner circumferential surface portion 617 is axially symmetric with respect to the axial center.

[0139] The surface of the inner peripheral portion 617 is a curved surface that curves with a constant curvature in the circumferential direction. The circumferential curvature of the surface of the inner peripheral 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 portion 617 is a curved surface with an extent, the inner peripheral 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, line contact is made with the outer peripheral surface of the support shaft. Here, due to the stress remaining in the wrapping material after winding (a force that contracts in the longitudinal direction) and the surrounding temperature or humidity during the manufacture of the wound body, a phenomenon called "shrinkage" may occur. Due to this "shrinkage", deformation (distortion) may occur in the main body of the core body that is floating with respect to the support shaft. On the other hand, in the present embodiment, since the surface of the inner peripheral portion 617 makes surface contact with the outer peripheral surface of the support shaft 31, the possibility of the above-described deformation (distortion) occurring in the core body 61 can be reduced.

[0140] Since the inner peripheral portion 617 is thick and the guide recess 616 is thin, a step is formed between the inner peripheral portion 617 and the guide recess 616. That is, the positioning portion 6161 of the guide recess 616 and the circumferential edges of the respective guiding portions 6162, 6163 are defined by the inner peripheral portion 617. The inner peripheral portion 617 has a core body side inclined surface 6171 that defines the circumferential (width direction) edges of the respective guiding portions 6162, 6163 of the guide recess 616 (see FIG. 3).

[0141] When attempting to mount the core body 61 including the engaging recess 615, the guide recess 616, and the inner peripheral portion 617 on the support shaft 31 from one end side, first, the guiding portion 6162 of the core body 61 will be positioned with respect to the guiding protrusion 317 of the support shaft 31. 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 guiding protrusion 317 (refer to the position change indicated by the arrow in FIG. 5).

[0142] The positioning portion 6161 is also a guiding portion that guides the guiding protrusion 317. The positioning portion 6161 as this guiding portion is provided at the axial center position of the core body 61, that is, between the one-end-side guiding portion 6162 and the other-end-side guiding portion 6163, and is continuous with each guiding portion 6162, 6163. When the core body 61 is mounted on the outer periphery of the support shaft main body 31A, the hooking protrusion 313 and the hooking recess 615 (the one-end-side hooking recess 6151 or the other-end-side hooking recess 6152) are guided so that the state of being 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 mounting the core body 61 on the support shaft main body 31A, it is not necessary to intentionally maintain the state where the support shaft main body 31A and the core body 61 are aligned around the central axis, so the operation can be facilitated.

[0143] Also, the one-end-side guiding portion 6162 has a reduced width dimension (circumferential dimension) from the one end to the axial center portion as it advances in the direction from the one end to the other end of the core body 61. When the core body 61 is mounted on the outer periphery of the support shaft main body 31A, the guiding protrusion 317 is guided so that the hooking protrusion 313 and the hooking recess 615 are aligned in the circumferential direction around the central axis of the outer peripheral portion of the support shaft main body 31A. According to this, when mounting the core body 61 on 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, so the operation can be facilitated. Incidentally, as it advances in the direction from the one end to the other end of the core body 61, the sub-guiding protrusion 318 guides the core body 61 from the axial center portion to the other end portion.

[0144] Here, when the guide projection 317 is located at the circumferential end of the one-end-side guide portion 6162, the edge of the one-end-side guide portion 6162, that is, the core body side slope 6171 on the one-end side, abuts against the guide projection 317. As a result, the positioning portion 6161 of the core body 61 is guided to coincide with the guide projection 317. Then, when the core body 61 is further moved in the axial direction, the guide projection 317 disengages from the positioning portion 6161 of the core body 61. In such a case, instead of the guide projection 317, the positioning portion 6161 is guided to coincide with the sub-guide projection 318 formed continuously on the base end side of the guide projection 317 (see Fig. 5). As a result of the guidance by the guide projection 317 and the sub-guide projection 318, the engaging projection 313 and the engaging recess 615 are fitted together. When the core body 61 is further moved in the axial direction, a part of the guide projection 317 protrudes from the other end of the core body 61, and the engaging projection 313 and the engaging recess 615 are completely fitted together, finally reaching the state shown in Fig. 4.

[0145] The edge (core body side slope 6171) of the one-end-side guide portion 6162 may abut against the slope of the tapered portion 3172 of the guide projection 317 (see Fig. 5). Here, the inclination in the axial direction of the core body side slope 6171, which is the edge of the one-end-side guide portion 6162, and the slope of the tapered portion 3172 of the guide projection 317 are substantially the same. Therefore, the abutment is made smoothly. The same applies to the other-end-side guide portion 6163.

[0146] According to the core body 61 of the present embodiment, attachment to the support shaft 31 is facilitated by the guide recess 616, and the strength of the core body 61 is ensured by the inner peripheral surface portion 617.

[0147] 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 of one end side and the other end side in the axial direction. Also, the thin portion 618 fits into the base end shaft portion 312 of the support shaft 31 in the state where the core body 61 is attached to the support shaft 31. The thick portion 619 fits into the main shaft portion 311 of the support shaft 31 in the state where it is attached to the support shaft 31. The thick portion 619 is thicker than the thin portion 618. The thin portion 618 corresponds to the aforementioned guide concave portion 616, and the thick portion 619 corresponds to the aforementioned inner circumferential surface portion 617. Although the thin portion 618 is formed for a different purpose from the aforementioned guide concave portion 616, the formation range on the inner circumference of the core body 61 is the same as that of the aforementioned guide concave portion 616. Note that the formation ranges can also be made different between the thin portion 618 and the guide concave portion 616. Although the thick portion 619 is formed for a different purpose from the aforementioned inner circumferential surface portion 617, the formation range in the core body 61 is the same as that of the aforementioned inner circumferential surface portion 617. Note that the formation ranges can also be made different between the thick portion 619 and the inner circumferential surface portion 617.

[0148] -Reuse of Used Core Body- The core body 61 can be reused multiple times by reusing it after the packaging material 62 has been used up. This can contribute to, for example, resource conservation. The reuse is performed by winding a new packaging material 62 around the used core body 61 collected from the user of the drug packaging device 1. By winding a new packaging material 62 around the reused core body 61, a new wound body 6 is manufactured. Note that in order to smoothly perform the collection, among the wound bodies 6 delivered to the user, for the portion of the core body 61, by taking the form of lending, the collection of the core body 61 can be promoted in the form of the user returning the core body 61.

[0149] The winding of the new wrapping material 62 around the used core 61 can be carried out, for example, by winding the new wrapping material 62 around a separate core (such as a paper tube) 63 having an inner diameter larger than the outer diameter of the core 61 (see, for example, Fig. 19), or by attaching a prefabricated wrapping material roll (replacement winding body) to the used core 61. When this method is used, a spacer such as a rubber ring can be interposed between the used core 61 and the separate core to adjust the difference between the outer diameter of the core 61 and the inner diameter of the separate core.

[0150] The manufacture of the new winding body 6 can be carried out by the supplier of the winding body 6, or the supplier of the winding body 6 can instruct the user to perform the operations related to the manufacture. In the latter case, the used core 61 will be left in the user's hands without being collected. The instruction from the supplier of the winding body 6 to the user may be explicit or implicit. The latter implicit instruction includes simply transferring the replacement winding body to the user.

[0151] -Possibility of form change- As described above, one embodiment of the present invention has been explained. However, the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the present invention.

[0152] The support shaft 31 may be in the form shown in Figs. 6 and 7, for example. The support shaft 31 shown in Figs. 6 and 7 is basically the same as the support shaft 31 of the above embodiment, but differs from the support shaft 31 of the above embodiment in that the third protrusion (sub-guide protrusion) 318 is not provided. That is, the support shaft 31 may not be provided with the third protrusion 318.

[0153] The support shaft 31 of this form is, for example, a modified version of the support shaft provided in an existing drug packaging device. The support shaft provided in the existing drug packaging device includes a support shaft main body 31A and a tip cap. The tip cap is attached to the tip of the support shaft main body 31A and closes the tip of the support shaft main body 31A. The support shaft 31 shown in FIGS. 6 and 7 is one in which the tip cap is removed from the tip of the support shaft main body 31A, and a support shaft tip body (mounting aid) 31B is attached to the tip of the support shaft main body 31A. Such a support shaft 31 can be realized without significantly modifying the support shaft provided in the existing drug packaging device. Therefore, the combination of the winding body 6 and the drug packaging device 1 of the present embodiment can be realized at low cost.

[0154] Further, the core body 61 may be in a form such as the modified examples shown in FIGS. 8 to 18. That is, at least one (here, one) third recess 6172 may be further formed in the inner peripheral portion of the core body 61. The third recess 6172 engages with the protruding and retracting portion 316 of the support shaft 31 when the core body 61 is mounted on the outer periphery of the support shaft 31. The third recess 6172 is provided at an intermediate position between one end portion and the other end portion of the core body 61 and is recessed radially outward. The third recess 6172 has a smaller amount of recess radially outward with respect to the inner peripheral portion (specifically, the inner peripheral surface of the core body 61) of the core body 61 than the respective one-end-side first recesses 6151 and the respective other-end-side first recesses 6152. Therefore, it is possible to prevent a decrease in the strength of the core body 61 due to the formation of the third recess 6172.

[0155] The third recess 6172 is provided at a predetermined angular position in the circumferential direction of the core body 61. In the present embodiment, in the circumferential direction of the core body 61, the third recess 6172 is provided at an angular position shifted by 90° with respect to one of the two second recesses 616. When the core body 61 is viewed from one end side, in the circumferential direction of the core body 61, if the angular position of the aforementioned first one-end-side first recess 6151 is set to 0°, the angular position of the third recess 6172 is 270°.

[0156] When the operator moves the winding body in the mounting direction with respect to the support shaft 31, such a third recess 6172 guides the protruding and retracting portion 316 so that each first protrusion 313 and each first recess 615 (specifically, each one-end-side first recess 6151 or each other-end-side first recess 6152 described above) are maintained in a state of being aligned in the circumferential direction of the support shaft 31. Therefore, even if the third protrusion 318 described above is not provided on the support shaft 31, the operator only needs to move the winding body 6 in the mounting direction with respect to the support shaft 31. The operator does not need to intentionally position the support shaft 31 and the core body 61 in a state of being aligned in the circumferential direction of the support shaft 31. Therefore, the operation of mounting the winding body with respect to the support shaft 31 becomes easy.

[0157] Note that the shape of the portion near the axial center of the core body 61 according to this modification is not limited to only the forms shown in FIGS. 8 to 18, and can be various forms. Also, the magnet holding portion 614 may not be provided. Further, although the two inner peripheral surfaces 617 are provided as described above, the shape of the inner peripheral surface 617 where the third recess 6172 is not provided may be various shapes.

[0158] Also, regardless of the presence or absence of the magnet holding portion 614, the magnet 613 may not be provided on the core body 61. In this case, the drug packaging device 1 may set the seal temperature using another means. Also, in this case, the orientation of the core body 61 with respect to the packaging material 62 may be either. Either one of the one end portion of the core body 61 and the other end portion of the core body 61 may be on the side of the fold of the packaging material 62. In this case, the manufacture of the winding body 6 becomes easy.

Explanation of Reference Numerals

[0159] 1 Drug packaging device 2 Packaging unit 3 Packaging material supply unit 31 Support shaft 31A Support shaft main body 31B Support shaft tip body 311 Main shaft portion 312 Base end shaft portion 313 Hanging protrusion, first protrusion 314 Moving portion, packaging material break detection pin 316 Haunting Department 317 Guide protrusion, second protrusion 318 Sub-guide projection, third projection 4 Packaging material transport section 5 Package forming section 6 wound body 61 Core body 611 Notch 6111 One end side notch 6112 Other end side notch 613 Magnet 6131 One end magnet 6132 Other end magnet 614 Magnet holder 6141 One end side holding part 6142 Other end side holding part 615 Hook recess, first recess 6151 First recess on one end side, second hook recess, first hook recess on one end side 6152 First recess on the other end, first hook recess, second hook recess 616 Second recess, guide recess 6161 Guide and positioning parts 6162 One end side guide part 6163 Other end guide section 617 Inner peripheral surface section 618 Thin-walled section 619 Thick wall part 62 Packaging material

Claims

1. A core body, which is formed in a cylindrical shape, is capable of winding a long sheet around its outer periphery, has a cylindrical inner peripheral portion, has one end portion and the other end portion, and in the inner peripheral portion, a first recess on the one - end - side provided at the position of the one end portion and recessed radially outward; a first recess on the other - end - side provided at the position of the other end portion and recessed radially outward; a second recess provided from the position of the one end portion to the position of the other end portion, recessed radially outward, and having a smaller amount of recess radially outward with respect to the inner peripheral portion than the first recess on the one - end - side and the first recess on the other - end - side, are formed; it can be attached to the outer periphery of a rotatably provided support shaft from the one - end - side or the other - end - side, when attached to the outer periphery of the support shaft, the first recess on the one - end - side or the first recess on the other - end - side fits into a first protrusion provided at the position of the base end portion of the support shaft, so that it can rotate integrally with the support shaft, when being attached to the outer periphery of the support shaft, the second recess engages with a second protrusion provided at the position of the tip end portion of the support shaft, so that the first protrusion and the first recess on the one - end - side or the first recess on the other - end - side are aligned in the circumferential direction of the support shaft, a core body is used, After using up the long sheet previously wound around the core body, a second wound body pre - manufactured by winding a new long sheet around a second core body having an inner diameter dimension larger than the outer diameter dimension of the core body is attached to the core body. A method for manufacturing a wound body, including this step.

2. The method for manufacturing a wound body according to Claim 1, wherein in a state where the second wound body is attached to the core body, a spacer is interposed between the outer peripheral surface of the core body and the inner peripheral surface of the second core body.

Images