JP2012166817A - Cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartridge storing an additive to be mixed in a content stored in a container and capable of easily discharging the additive to the content in the container using a lid body repeatedly used as an auxiliary tool.SOLUTION: This cartridge comprises a first member 30 storing a content and a second member 32 including a cutting means 64. The first member includes a storage body 34 having a lower surface opened and a closing piece 36 capable of being cut and attached to the lower surface of the storage body to close the lower surface. The second member comprises a cylindrical body 54 having upper and lower surfaces opened and is provided with the cutting means at an inner lower part of the cylindrical body. The first member is partially inserted into the second member through the upper surface of the second member. When the first member is lowered relative to the second member, the cutting means of the second member acts on the closing piece of the first member to cut the closing piece.

Description

  The present invention relates to a cartridge containing an additive to be mixed into a content such as a liquid contained in a container.

  As disclosed in the following Patent Documents 1 and 2, an additive (usually powder or liquid) to be added to the contents (usually liquid) contained in the container is contained in the lid, It has been proposed to configure so that an additive contained in the lid can be discharged and mixed into the contents in the container by appropriately operating the lid when consuming the contents.

JP 2003-292013 A Japanese Patent Laying-Open No. 2005-088997

  Thus, the conventional proposal as described above has the following problems to be solved. First, because the storage part for storing the additive is integrally formed in the lid itself, once the additive is discharged and mixed into the contents of the container, the entire relatively expensive lid is reused. It becomes impossible and not economical. Secondly, the lid is also used as a normal lid to seal the mouth and neck of the container, and therefore keeps being attached to the mouth and neck of the container. However, there is a tendency that it penetrates through the site defining the housing part of the lid and enters the additive.

  The present invention has been made in view of the above-mentioned facts, and its main technical problem is a cartridge containing an additive to be mixed into the contents contained in the container, and the lid body used repeatedly. It is to provide a new and improved cartridge capable of easily discharging the additive to the contents in the container by using as an auxiliary tool.

According to the present invention, as a cartridge for achieving the main technical problem, a cartridge composed of a first member for storing contents and a second member having a cutting means,
The first member has an upper surface wall and a cylindrical side wall depending from the peripheral edge of the upper surface wall, and a lower surface of the container is opened, and the lower surface of the container is attached to the lower surface to close the lower surface A severable closing piece, and after the additive is stored in the container, the closing piece is attached to the lower surface of the container,
The second member is composed of a cylindrical body having an upper surface and a lower surface opened, and a cutting means is disposed at an inner lower portion of the cylindrical body.
The first member is partially inserted into the second member through the upper surface of the second member, and the outer peripheral surface of the side wall of the housing of the first member and the second member Cooperating with the inner peripheral surface of the cylindrical body to prevent the first member partially inserted into the second member from being detached upward from the second member. Locking means are arranged,
The cutting means is composed of a plurality of cutting pieces having inclined cutting edges that are inclined downward radially outward from a tip located at the center of the cylindrical body. Are arranged at angular intervals,
When the first member is lowered relative to the second member, the cutting means of the second member acts on the closing piece of the first member to cut the closing piece. To
A cartridge is provided.

  Preferably, an annular bottom wall extending radially inward is disposed at a lower end portion of the inner peripheral surface of the cylindrical body, and an upper surface of the bottom wall is spaced upward in the circumferential direction. A plurality of projecting arc-shaped pieces are disposed, and each of the arc-shaped pieces is located between two adjacent ones of the cut pieces in the circumferential direction. A sealing ring is provided on the upper surface of the bottom wall so as to protrude radially outward from the arcuate piece. The projecting height of the arcuate piece is greater than the projecting height of the ring, When the member is lowered relative to the second member, the lower end portion of the side wall of the container is positioned between the inner peripheral surface of the cylindrical body and the ring, It is preferable that the outer peripheral surface is in close contact with the outer peripheral surface of the lower end portion of the side wall of the container through the closing piece.

  When consuming the contents of the container, an inexpensive ordinary lid that was attached to the mouth and neck of the container and sealed the mouth and neck was removed from the mouth and neck, and the lid itself was used as an auxiliary tool. Wear on the neck. Prior to mounting the lid body on the mouth and neck of the container or after mounting the lid body on the mouth and neck of the container, the cartridge of the present invention is inserted into the main portion of the lid body, and then the first cartridge The second member is lowered relative to the second member, whereby the cutting means of the second member acts on the blocking piece of the first member to cut it, and is thus accommodated in the first member. The added additives are discharged and mixed into the contents in the container. Since the cartridge is stored separately from the container until the contents of the container are mixed, the contents of the container infiltrate the additives contained in the cartridge even if stored for a long period of time. There is nothing. After the additive contained in the cartridge is discharged and mixed into the contents contained in the container, the cartridge cannot be reused, but the lid body as an auxiliary tool can be combined with other cartridges. Can be reused.

FIG. 3 is a perspective view showing a first member and a second member in a preferred embodiment of a cartridge configured according to the present invention. FIG. 2 is a perspective view showing a first member of the cartridge shown in FIG. 1 in an inverted state. The top view of the 2nd member of the cartridge shown in FIG. Sectional drawing which shows the state which combined the 1st member and 2nd member of the cartridge which are shown in FIG. FIG. 3 is a partially enlarged plan view showing a mutual relationship between a first member and a second member of the cartridge shown in FIG. 1. The slope view of the lid body used as an auxiliary tool. Sectional drawing which shows the state which combined the cartridge shown in FIG. 1 with the lid | cover main body shown in FIG. Sectional drawing which shows the state which mounted | wore the opening and neck part of the container partially with the combination shown in FIG. Sectional drawing which shows the state which attached the combination shown in FIG. 7 to the mouth neck part of a container as needed, and discharged | emitted the additive mainly made in the cartridge in the container. The partial expanded sectional view which expands and shows a part shown in FIG.

  Hereinafter, preferred embodiments of a cartridge constructed according to the present invention will be described in more detail with reference to the accompanying drawings.

  Referring to FIGS. 1 to 4, the cartridge 28 configured according to the present invention includes a first member 30 and a second member 32. The first member 30 may be formed of a container 34 that can be injection-molded from an appropriate synthetic resin such as polyethylene or polypropylene, and an aluminum foil, a synthetic resin film, or a laminate of an aluminum foil and a synthetic resin film. And a closing piece 36 that can be formed. The container 34 has a circular upper surface wall 38 and a cylindrical side wall 40 depending from the periphery of the upper surface wall 38, and the lower surface is opened. The closing piece 36 has a disk shape, and after containing an additive (not shown) which may be powder or liquid in the container 34, the side wall 40 of the container 34 is bonded by heat welding or bonding with an appropriate adhesive. The lower surface of the container 34 is closed.

  At the lower end of the outer peripheral surface of the side wall 40 of the container 34, a plurality of, in the illustrated case, four arc-shaped protrusions 42 are formed that protrude radially outward at intervals in the circumferential direction. Further, on the outer peripheral surface of the side wall 40, a first protrusion 44 extending upward from one end of the arc-shaped protrusion 42 to the axially intermediate part and a second protrusion extending upward from the other end of the arc-shaped protrusion 42 to the axially intermediate part. 46 is formed. As clearly understood by referring to FIG. 6, the protruding amount of the first protrusion 44 is relatively large, and both side surfaces of the first protrusion 44 are approximately 90 with respect to the outer peripheral surface of the side wall 40. It is a sharp surface that makes an angle of degrees. On the other hand, the protruding amount of the second protrusion 46 is relatively small, and the tip of the second protrusion 46 is arcuate in cross section. As will become clear from the following description, the arc-shaped protrusion 42 and the first protrusion 44 and the second protrusion 46 are the locking protrusions (described further later) disposed on the second member 32 of the cartridge 28. ) To form a locking means. The side wall 40 of the container 34 is also provided with a restricting piece 50 that protrudes outward in the radial direction via a breakable connecting portion 48 made of a thin piece. The connecting portion 48 has an elongated strip shape, and the limiting piece 50 has a rectangular shape. The side wall 40 is further provided with a pair of limiting pieces 52 extending outward in the radial direction with an angular interval of approximately 180 degrees at the upper end of the outer peripheral surface. The upper surface of the limiting piece 52 extends downward in the radial direction and the lower surface extends substantially horizontally.

  Continuing the description with reference to FIGS. 1 and 3, the second member 32 of the cartridge 28 is constituted by a cylindrical body 54 whose upper and lower surfaces are opened. Four supported ridges 55 are formed on the outer peripheral surface of the cylindrical body 54 so as to protrude in the radial direction at equal intervals in the circumferential direction. An annular bottom wall 56 extending inward in the radial direction is formed at the lower end portion of the inner peripheral surface of the cylindrical body 54. As clearly understood by referring to FIG. 10, an annular seal piece 57 projecting downward is formed on the lower surface of the bottom wall 56. The cylindrical body 54 protrudes downward beyond the bottom wall 56. A plurality of bottom walls 56 are equally spaced in the circumferential direction, and in the illustrated case, four are extended radially inwardly, and each of the extending portions has an arc shape protruding upward. A piece 58 is formed. A sealing ring 60 is also formed on the upper surface of the bottom wall 56 so as to protrude upward in the radial direction outside the arc-shaped piece 58. As clearly understood by referring to FIG. 10, the protruding height of the arc-shaped piece 58 is larger than the protruding height of the ring 60, and in the illustrated embodiment, the protruding height of the arc-shaped piece 58 is the protruding height of the ring 60. It is set to approximately twice that. The bottom wall 56 is further provided with four radiating pieces 62 extending radially from the radial center to the inner peripheral edge of the bottom wall 56 in the region between the adjacent arc-shaped pieces 58. A cutting means 64 is disposed on the upper surface of the radially inner portion of the four radiation pieces 62. The cutting means 64 in the illustrated embodiment is composed of a plurality (four in the illustrated example) of cutting pieces 65 disposed at an equal angular interval (in the illustrated case, an angular interval of 90 degrees). . The four cut pieces 65 have a cross-shaped cross-sectional shape as a whole, and each of the cut pieces 65 extends from the sharp apex located at the center in the radial direction to be inclined downward in the radial direction downward. It has a sharp cutting edge 66. Each of the cutting edges 66 extends along each of the radiation pieces 62. The radially outer edge 68 of the cutting means 64 is suspended substantially vertically to the upper surface of the radiation piece 62.

  On the inner peripheral surface of the cylindrical body 54, a plurality of locking projections 70 (in the illustrated case, four) projecting radially inward at equal intervals in the circumferential direction are arranged. As clearly shown in FIG. 5, one end surface (clockwise front end surface in FIG. 5) 72 of the locking projection 70 is a sharp surface that forms an angle of approximately 90 degrees with respect to the inner peripheral surface of the cylindrical body 54. The other end surface (clockwise rear end surface in FIG. 5) 74 of the locking projection 70 is a gentle arcuate surface. As will be apparent from the following description, the locking protrusion 70 cooperates with the arc-shaped protrusion 42 formed on the housing 34 of the first member 30 and the first protrusion 44 and the second protrusion 46. Constitutes locking means; On the inner peripheral surface of the cylindrical body 54, a plurality of, in the illustrated case, four arcuate locking pieces 76 projecting in the radial direction at intervals in the circumferential direction below the locking projections 70 are also arranged. It is installed. As clearly shown in FIG. 5, each of the arcuate locking pieces 76 is somewhat displaced clockwise in FIG. 5 with respect to each of the locking projections 70.

  FIG. 6 shows the lid body 2 used in combination with the above-described cartridge 28. A lid body 2 that can be injection-molded from an appropriate synthetic resin such as polypropylene or polyethylene is composed of a cylindrical main portion 4 and an outer lid 6 connected to the main portion 4. Referring to FIG. 7 together with FIG. 6, the upper surface and the lower surface of the main part 4 are opened. An annular locking groove 8 is formed at the upper end of the outer peripheral surface of the main portion 4. On the outer peripheral surface of the main portion 4, a large number of projections 10 extending from a portion slightly below the locking groove 8 to the lower end are formed at intervals in the circumferential direction. As clearly shown in FIG. 1, the upper end portion of the protrusion 10 is omitted at a specific angle portion, and a smooth surface 12 having no protrusion is formed at the specific angle portion at the upper end portion of the outer peripheral surface of the main portion 4. ing. As clearly shown in FIG. 7, a female thread 14 is formed at the lower end portion of the inner peripheral surface of the main portion 4. An annular support ridge 16 projecting radially inward is formed at the axially intermediate portion of the inner peripheral surface of the main portion 4.

  The outer lid 6 of the lid body 2 has a circular top wall 18 and a cylindrical side wall 20 depending from the periphery of the top wall 18. The outer lid 6 is connected to the upper end of the main portion 4 via a hinge mechanism 22 so as to be openable and closable, on the opposite side of the smooth surface 12 in the main portion 4 in the diametrical direction. The hinge mechanism 22 may be of a form well known to those skilled in the art, and the outer lid 6 is pivotally opened and closed between an open position shown in FIG. 6 and a closed position shown in FIG. When the outer lid 6 is brought into the open position shown in FIG. 6, the upper surface of the main portion 4 is opened, and when the outer lid 6 is brought into the closed position shown in FIG. 7, the main portion 4 is opened. The upper surface is covered with the outer lid 6. An arc-shaped protruding piece 24 is formed on the lower end portion of the outer peripheral surface of the side wall 20 on the opposite side in the diametrical direction with respect to the hinge mechanism 22 (therefore, the position corresponding to the smooth surface 12 of the main portion 4). As clearly understood by referring to FIG. 7 together with FIG. 6, three locking protrusions 26 are arranged at equal intervals in the circumferential direction at the lower end portion of the inner peripheral surface of the side wall 20. When the outer lid 6 is brought into the closed position shown in FIG. 7, the locking protrusion 26 engages with the locking groove 8 of the main portion 4, and thereby the outer lid 6 is maintained in the closed position so as to be releasable. . In the illustrated embodiment, the outer lid 6 is connected to the main portion 4 via the hinge mechanism 22, but if desired, an outer lid is formed separately from the main portion 4, and this outer lid is attached to the main portion 4. It is also possible to cover the opened upper surface of the main part 4 by detachably attaching to the upper end part.

  Next, the usage mode of the cartridge 28 described above will be described. The container 34 in the first member 30 of the cartridge 28 is turned upside down, that is, the opened lower surface is directed upward, and the container 34 may have an additive (not shown) that may be powder or liquid. To accommodate. Next, the closing piece 36 is joined to the lower end of the side wall 40 of the container 34 to close the lower surface of the container 34. Thereafter, the first member 30 and the second member 32 are combined to form the cartridge 28. Specifically, as shown in FIG. 4, the lower part of the container 34 in which the closing piece 36 is joined to the first member 30, that is, the lower surface, is passed through the opened upper surface of the cylindrical body 54 constituting the second member 32. Insert into the cylindrical body 54. At this time, the four arc-shaped protrusions 42 formed on the lower end of the housing 34 are positioned between the four locking protrusions 70 formed on the inner peripheral surface of the cylindrical body 54, and thus are locked. The arc-shaped protrusion 42 is positioned below the locking protrusion 70 by passing between the protrusions 70. The insertion of the container 34 into the cylindrical body 54 is restricted by the restriction piece 50 disposed in the container 34 coming into contact with the upper end of the cylindrical body 54, and the arcuate protrusion 42 of the container 34 is formed in the cylindrical body 54. It is positioned below the locking protrusion 70 formed on the inner peripheral surface of the, but is positioned above the arcuate locking piece 76. Next, the container 34 is rotated clockwise or counterclockwise with respect to the cylindrical body 54 as viewed from above. As can be clearly understood by referring to FIG. 5, the first protrusion 44 disposed in the housing body 34 is disposed in the cylindrical body 54 because both side surfaces of the first protrusion 44 are erected surfaces. The two protrusions 46 disposed on the container 34 are relatively small in protrusion amount and are in an arc shape in the cross section. The locking projection 70 is brought into contact with and locked to the one end surface 72, but the locking projection 70 is elastically beyond the other end surface 74 without being locked to the gentle other end surface 74 of the locking projection 70. It can ride on the stop protrusion 70 and can get over the stop protrusion 70. Thus, as will be understood by referring to FIG. 5, the rotation of the container 34 relative to the cylindrical body 54 causes the arcuate protrusion 42 disposed on the container 34 to be disposed on the cylindrical body 54. It is made to stop in the state located under the latching protrusion 70 currently made. In this state, when the container 34 is displaced upward with respect to the cylindrical body 54, the arc-shaped protrusion 42 contacts the locking protrusion 70, and thus the upward displacement of the container 34 is prevented. On the other hand, the container 34 is prevented from separating upward. When the limiting piece 50 of the container 34 abuts the upper end of the cylindrical body 54, the arc-shaped protrusion 42 of the container 34 is positioned somewhat above the arc-shaped locking piece 76 of the cylindrical body 54. As shown in the drawing, the accommodating body 34 is somewhat inclined with respect to the cylindrical body 54, and one of the arc-shaped protrusions 42 is brought into contact with one of the arc-shaped locking pieces 76. The cartridge 28 composed of the first member 30 and the second member 32 is combined in the state shown in FIG. 4 and sealed and packaged in a bag (not shown) composed of, for example, a synthetic resin film. Sold.

  A typical consumption mode when a consumer who purchases the cartridge 28 consumes the additive contained in the container 34 is as follows. First, the breakable connecting portion 48 attached to the side wall 40 of the container 34 in the first member 30 of the cartridge 28 is broken to remove the limiting piece 50. As a result, as shown in FIG. 7, the slight inclination of the first member 30 with respect to the second member 32 is eliminated, and the four arc-shaped protrusions 42 of the container 34 have four arc-shaped engagements of the cylindrical body 54. It is brought into contact with the stop piece 76. Thereafter, the outer lid 6 of the lid body 2 is moved to the open position shown in FIG. 6, and the cartridge 28 is inserted into the main portion 4 through the open upper surface of the main portion 4 as shown in FIG. The cartridge 28 is inserted into the main portion 4 when the supported ridge 55 formed on the outer peripheral surface of the cylindrical body 54 abuts on the support ridge 16 formed on the inner peripheral surface of the main portion 4. Further, the pair of limiting pieces 52 formed on the upper end portion of the outer peripheral surface of the side wall 40 of the container 34 are limited by contacting the upper end edge of the main portion 4. Next, the outer lid 6 of the lid body 2 is moved to the closed position shown in FIG. On the other hand, for example, a container lid (see FIG. 8) that is attached to a mouth and neck portion 78 (FIG. 8) of an appropriate container containing a liquid content such as natural water, for example, a container made of polyethylene terephthalate. Only the tamper evidence skirt 80 is shown), and only the tamper evidence skirt 80 is left to leave the mouth and neck 78. A male thread 82 and a locking jaw 84 positioned below the male thread 82 are formed on the outer peripheral surface of the mouth-and-neck part 78 of the container, which may be in a known form. The container lid has a top wall and a skirt wall that hangs down from the periphery of the top wall. The skirt wall is formed with a circumferential break line, and the skirt wall is a main portion top above the circumferential break line. A tamper-evidence skirt 80 below the circumferential break line is defined, and a female thread that is screwed to the male thread of the mouth-and-neck 78 is formed on the inner peripheral surface of the main part of the skirt wall. The tamper evidence hem 80 has an inner peripheral surface formed with a locking means that is locked to the locking jaw 84 of the mouth-and-neck portion 78. When the mouth-and-neck portion 78 is opened, a circumferential break line is formed. May be in the form of being broken.

  Next, as shown in FIG. 8, the lid body 2 containing the cartridge 28 is fitted on the mouth and neck portion 78, and the lid body 2 is rotated clockwise as viewed from above in FIG. The female thread 14 formed at the lower end of the inner peripheral surface of the portion 4 is screwed into the male thread 82 of the mouth-and-neck section 78. When the lid main body 2 is lowered with respect to the mouth-and-neck portion 78 as the screwing of the female screw 14 and the male screw 82 proceeds, the lower surface of the cylindrical body 54 constituting the second member 32 of the cartridge 28 is lowered. The disposed seal piece 57 enters the mouth and neck portion 78, and the lower end of the bottom wall 56 of the cylindrical body 54 is brought into contact with the top surface of the mouth and neck portion 78. The cartridge 28 is prevented from further lowering (see also FIG. 10). When the lid body 2 descends with respect to the mouth and neck portion 78 and the lid body 2 is lowered to the position illustrated in FIG. 8, the inner surface of the top wall 18 of the outer lid 8 of the lid body 2 is the first surface of the cartridge 28. The member 30 is brought into contact with the upper surface wall 38 of the container 34.

  If the lid body 2 continues to rotate and the lid body 2 continues to descend with respect to the mouth and neck portion 78, the second member 32 of the cartridge 28 is prevented from further descending with respect to the mouth and neck portion 78. The first member 30 of the outer lid 2 is forcibly moved downward along with the lowering of the lid body 2 by forcing the top wall 18 of the outer lid 2 downward of the upper wall 38 of the container 34. Therefore, the container 34 is forcibly lowered with respect to the cylindrical body 54, and the arc-shaped protrusion 42 of the container 34 elastically rides over the arc-shaped locking piece 76 of the cylindrical body 54. As clearly understood by referring to FIG. 10 together with FIG. 9, when the container 34 is lowered with respect to the cylindrical body 54, the cutting means 64 of the cylindrical body 54 is placed at the lower end of the side wall 40 of the container 34. It acts on the joined closing piece 36 to break the central portion of the closing piece 36 into a cross shape. When the container 34 is lowered with respect to the cylindrical body 54 to the position shown in FIGS. 9 and 10, the arc-shaped protrusion 42 disposed at the lower end of the container 34 is formed on the upper surface of the bottom wall 56 of the cylindrical body 54. The inner peripheral surface of the lower end portion of the side wall 40 of the accommodating body 34 is brought into contact with the outer peripheral surface of the ring 60 of the cylindrical body 54 via the closing piece 36 displaced upward, and thereby the lower end of the accommodating body 34 is contacted. The outer peripheral edge is sealed. As shown in FIG. 10, the closing piece 36 cut by the cutting means 64 is guided by the ring 60 and the arc-shaped piece 58 and is displaced upward, and is thus discharged from the inside of the container 34 into the mouth neck 78 of the container. A path is generated, and the additive contained in the container 34 is mixed into the contents contained in the container.

  After substantially all of the additive contained in the container 34 has been discharged and mixed into the contents contained in the container, the lid body 2 is counterclockwise as viewed from above in FIG. , The male screw 82 and the female screw 14 are gradually disengaged, and the lid body 2 and the cartridge 28 accommodated in the lid main body 2 and the cartridge 28 accommodated therein are detached from the mouth-and-neck portion 78 of the container. The cartridge 28 removed from the lid body 2 with the outer lid 6 of the lid body 2 in the open position is discarded without being reused, but the lid body 2 is further reused in combination with another new cartridge 28. be able to. On the other hand, with respect to the contents contained in the container and containing the additive, if necessary, the container lid separated from the mouth-and-neck part 78 with only the tamper-evidence hem part 80 remaining is removed. After the mouth-and-neck portion 78 is temporarily sealed after being attached to 78, the container is shaken appropriately to thoroughly mix the additive with the contents, and then the container lid is removed from the mouth-and-neck portion 78 and consumed.

28: cartridge 30: first member 32: second member 34: container 36: closing piece 42: arc-shaped protrusion (locking means)
44: First protrusion (locking means)
46: Second protrusion (locking means)
48: Breakable connecting portion 50: Limiting piece 52: Limiting piece 54: Cylindrical body 56: Circular bottom wall 58: Arc-shaped piece 60: Sealing ring 64: Cutting means 66: Cutting edge 70: Locking protrusion (locking means)

Claims (3)

A cartridge composed of a first member for containing contents and a second member having a cutting means,
The first member has an upper surface wall and a cylindrical side wall depending from the peripheral edge of the upper surface wall, and a lower surface of the container is opened, and the lower surface of the container is attached to the lower surface to close the lower surface A severable closing piece, and after the additive is stored in the container, the closing piece is attached to the lower surface of the container,
The second member is composed of a cylindrical body having an upper surface and a lower surface opened, and a cutting means is disposed at an inner lower portion of the cylindrical body.
The first member is partially inserted into the second member through the upper surface of the second member, and the outer peripheral surface of the side wall of the housing of the first member and the second member Cooperating with the inner peripheral surface of the cylindrical body to prevent the first member partially inserted into the second member from being detached upward from the second member. Locking means are arranged,
The cutting means is composed of a plurality of cutting pieces having inclined cutting edges that are inclined downward radially outward from a tip located at the center of the cylindrical body. Are arranged at angular intervals,
When the first member is lowered relative to the second member, the cutting means of the second member acts on the closing piece of the first member to cut the closing piece. To
A cartridge characterized by that.   An annular bottom wall extending radially inward is disposed at the lower end portion of the inner peripheral surface of the cylindrical body, and a plurality of protrusions projecting upward at intervals in the circumferential direction on the upper surface of the bottom wall. The cartridge according to claim 1, wherein a plurality of arcuate pieces are disposed, and each of the arcuate pieces is located between two adjacent pieces of the cut piece in the circumferential direction.   A sealing ring is provided on the upper surface of the bottom wall so as to protrude radially outward from the arcuate piece. The projecting height of the arcuate piece is greater than the projecting height of the ring, When the member is lowered relative to the second member, the lower end portion of the side wall of the container is positioned between the inner peripheral surface of the cylindrical body and the ring, The cartridge according to claim 2, wherein the outer peripheral surface is brought into close contact with the outer peripheral surface of the lower end portion of the side wall of the container through the closing piece.

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