JP6600196B2 - Aerosol container with double wall structure - Google Patents

Description

  The present invention includes a double container (double wall structure) having an inner container and an outer container, a discharge device attached to a mouth erected on the upper part of the outer container, and a bottom part of the outer container. And an aerosol container capable of injecting contents from a discharge device by the pressure of a pressurized fluid filled in a pressurized space between the inner container and the outer container through the cylinder body. When providing the cap attached to a cylinder part and the support which makes an outer container self-support, it tries to suppress the increase in a number of parts.

  Conventionally, as this type of aerosol container, for example, the one described in Patent Document 1 is known. That is, Patent Document 1 discloses a double container having an inner container that accommodates the contents and can be reduced in volume as the contents decrease, and an outer container that accommodates the inner container, and an upper part of the outer container. A discharge device attached to a cylindrical mouth portion standing upright and a cylindrical body portion suspended from the bottom of the outer container, and the inner container and the outer container are connected through the cylindrical body portion. There is described an aerosol container capable of injecting contents from a discharge device by the pressure of a pressurized fluid filled in a pressurized space therebetween.

JP 2014-8966 A

  In the aerosol container described in Patent Document 1, another container (pressurizing device) filled with a pressurized fluid is provided, and the other container is connected to the cylindrical body portion of the outer container. It is designed to be used by jetting things.

  Here, in order to further simplify the structure, a cap that forms a check valve by attaching to the cylindrical body part and a support that makes the outer container self-supporting by attaching to the outer container are provided. Prior to the injection), it is conceivable that the pressurized fluid can be filled through the check valve of the cap. Further, when providing the cap and the support in this way, it is desirable to suppress an increase in the number of parts.

  The present invention has been developed to solve such a problem, and a pressurized fluid is filled into a pressurized space between the outer container and the inner container through a cylindrical body part suspended from the bottom of the outer container. In a possible aerosol container, an object is to suppress an increase in the number of parts when providing a cap attached to a cylindrical body part and a support for self-supporting the outer container.

That is, the gist configuration of the present invention is as follows.
1. A double container having an inner container that can contain the contents and can be reduced in volume as the contents are reduced, and an outer container that accommodates the inner container, and a cylinder that is erected on the upper part of the outer container A discharge device attached to the mouth portion, and a cylindrical body portion that is suspended from the bottom of the outer container, and is interposed between the inner container and the outer container through the cylindrical body portion. In an aerosol container capable of injecting the contents from the discharge device by the pressure of a pressurized fluid filled in a pressure space,
A cap that is screwed into the cylindrical body part to form a check valve that allows passage of the pressurized fluid into the pressurized space while preventing passage to the opposite side;
An aerosol container, comprising: a support that is formed integrally with the cap and a planned fracture portion, and that allows the outer container to be self-supporting by being fractured and fitted into the outer container.

2. The cap has a cylindrical shape and is screwed into the cylindrical body portion, a bottom wall portion that closes a lower portion of the mounting cylindrical portion leaving at least one through hole, Said 1 aerosol container provided with the elastic valve body seated on an upper surface.

3. The support has a cylindrical shape and an outer cylindrical portion that fits into the outer container, an annular bottom wall extending from the lower end edge of the outer cylindrical portion to the inner peripheral side, and an inner peripheral edge of the bottom wall. An inner cylinder part that forms a cylindrical shape,
The said 2nd aerosol container is provided between the upper end part of the said inner cylinder part, and the outer peripheral surface of the said mounting cylinder part.

4). The planned fracture portion is provided between an upper end portion of the inner cylinder portion and an outer peripheral surface at a lower portion of the mounting cylinder portion,
On the inner peripheral surface of the inner cylinder portion, a plurality of ridges are formed that are arranged at intervals in the circumferential direction and extend in the vertical direction.
On the outer peripheral surface of the mounting cylinder portion, a plurality of protrusions are formed extending in the vertical direction and spaced apart in the circumferential direction.
The plurality of protrusions of the inner cylinder part and the plurality of protrusions of the mounting cylinder part are engaged with each other when the support is rotated in a direction in which the mounting cylinder part is screwed to the cylinder body part. The aerosol container according to 3 above.

5. The plurality of ridges of the inner cylinder part and the plurality of ridges of the mounting cylinder part cross over each other when the support is rotated in a direction to unscrew the mounting cylinder part from the cylinder body part. The aerosol container according to 4 above.

6). The planned fracture portion is provided between the upper end portion of the inner cylinder portion and the upper end portion of the mounting cylinder portion,
The aerosol container according to 3 above, wherein after the mounting cylinder portion is screwed to the cylindrical body portion, the planned fracture portion is broken by further moving the support toward the outer container.

7. The elastic valve body of the cap seals between the distal end surface and the bottom wall portion in close contact with the distal end surface of the tubular body portion when the mounting tubular portion is screwed to the tubular body portion. The aerosol container according to any one of the above items 2 to 6, which also serves as a packing.

  According to the present invention, since the support is formed integrally with the cap via the planned fracture portion, an increase in the number of parts can be suppressed.

It is a side view of the aerosol container concerning one embodiment of the present invention, and shows the state where an overcap was removed. It is a partial cross section side view of the aerosol container of FIG. 1, and shows the state which attached the overcap. It is the elements on larger scale in the double container upper part periphery of FIG. It is the elements on larger scale in the double container bottom part periphery of FIG. The state before isolation | separation of the cap and support in the aerosol container of FIG. 1 is shown, (a) is a partial cross section side view which follows the AA line of (b), (b) is a bottom view. It is a half sectional view in the side view which shows the double container bottom part periphery about the aerosol container which concerns on other embodiment of this invention. The state before separation of the cap and support in the aerosol container of Drawing 6 is shown, (a) is a partial section side view which meets the BB line of (b), and (b) is a bottom view.

Hereinafter, with reference to FIGS. 1-5, the aerosol container 1 which concerns on one Embodiment of this invention is illustrated and demonstrated in detail.
In the present specification, the vertical direction means a direction along the central axis O of the outer container 3, and a side where the cap 9 is located with respect to the outer container 3 is a lower side, and the opposite side is an upper side.

  As shown in FIGS. 1-2, the aerosol container 1 which concerns on this embodiment is the double container 4 which consists of the inner container 2 and the outer container 3, the discharge valve 5, the stationary platen 6, the nozzle head 7, , An overcap 8, a cap 9, and a support 10. In the present embodiment, the discharge valve 5 and the nozzle head 7 constitute a discharge device.

  The double container 4 has a content container (not shown) and an inner container 2 that can be deformed and reduced as the content decreases, and an outer container 3 that houses the inner container 2. Here, various contents such as medicines, foods, etc. can be applied as the contents. The double container 4 may be formed by, for example, combining preforms into a double (inner and outer) and blow-molding, or placing the preform of the inner container 2 in the blow-molded outer container 3. It may be formed by blow molding, or may be formed by combining the inner container 2 and the outer container 3 after individually molding. Moreover, the double container 4 can also be formed as an extrusion blow-molded (direct blow-molded) laminated peeling container (the inner layer is laminated so as to be peelable from the outer layer).

  The outer container 3 includes a barrel portion 3a having a cylindrical shape centered on the axis O. At the upper end of the body portion 3a, an annular step portion 3b whose diameter is reduced from the body portion 3a and a shoulder portion 3c whose diameter is gradually reduced upward from the step portion 3b are connected. A lower end of a mouth portion 3d having a cylindrical shape centering on the axis O is connected to the inner peripheral edge of the shoulder portion 3c. At the lower end of the body portion 3a, an annular step portion 3e whose diameter is reduced from the body portion 3a and a bottom portion 3f whose diameter is gradually reduced downward from the step portion 3e are connected. An upper end of a cylindrical body portion 3g having a cylindrical shape centering on the axis O is connected to the inner peripheral edge of the bottom portion 3f. In the present embodiment, a reduced diameter portion 3g1 that decreases in diameter toward the bottom is formed at the tip of the cylindrical body portion 3g.

  The inner container 2 is provided with a flanged cylindrical portion 2a that overlaps the upper end surface and inner peripheral surface of the mouth portion 3d of the outer container 3. The mouth portion 2a is continuous with a shoulder portion 3c, a step portion 3b, a body portion 3a, a step portion 3e, and a bag portion 2b overlapping the bottom portion 3f of the outer container 3.

  As shown in FIG. 3, the discharge valve 5 includes a cylindrical housing 5b having a flange 5a and a stem 5c provided on the radially inner side of the housing 5b so as to be vertically movable. A packing 5d is disposed between the flange 5a and the upper end surface of the mouth 2a of the inner container 2. The housing 5b is fixed to the mouth portion 3d by a mounting cap 5e that covers the outer periphery of the flange 5a and the mouth portion 3d of the outer container 3.

  A coil spring 5f is disposed inside the housing 5b and biases the stem 5c upward. Further, at the center of the stem 5c, an ejection passage 5g extending in the vertical direction and a communication passage 5h extending in the radial direction and communicating with the ejection passage 5g are provided. The housing 5b is provided with an annular stem rubber 5j that is disposed inside a protruding portion 5i that protrudes upward from the flange 5a and seals the communication passage 5h in a liquid-tight manner. When the stem 5c is pushed down against the urging force of the coil spring 5f from the state shown in FIG. 3, the sealing of the communication path 5h by the stem rubber 5j is released.

  The mounting cap 5e is made of, for example, an aluminum alloy. In the present embodiment, the mounting cap 5e includes an upper surface portion 5k having an insertion hole into which the stem 5c is inserted, a cylindrical skirt portion 5l continuously provided downward from a peripheral edge of the upper surface portion 5k, And an engaging portion 5m formed by bending the lower end of the skirt portion 5l. The structure of the discharge valve 5 is not particularly limited as long as it seals the mouth 2a of the inner container 2 and can open and close the content passage, and a known valve mechanism can be used. .

  As shown in FIG. 3, in the present embodiment, a fixed plate 6 is fixed to the aerosol container 1. The stationary platen 6 includes a cylindrical fitting portion 6a that is fitted to the outside of the mounting cap 5e, an inclined portion 6b that extends while being inclined downward from the upper end of the fitting portion 6a toward the radially outer side, and an inclined portion 6b. The middle cylinder part 6c which hangs down from the outer end of the inner cylinder part 6c, and the lower cylinder part 6d having a larger diameter than the middle cylinder part 6c, which extends downward from the lower end of the middle cylinder part 6c via a stepped part. On the inner surface of the fitting portion 6a, there are provided an upper locking projection 6e that contacts the upper surface portion 5k of the mounting cap 5e and a lower locking projection 6f that engages with the engaging portion 5m. The fixed platen 6 is configured to be engaged and held by the aerosol container 1 by being sandwiched vertically.

  An overcap 8 is detachably attached to the stationary platen 6. The overcap 8 has a cylindrical side wall portion 8a and a top wall portion 8b covering the upper end of the side wall portion 8a, and is provided on the outer peripheral surface of the middle cylinder portion 6c on the inner surface of the lower end portion of the side wall portion 8a. An engaging protrusion 8c that engages with the protrusion 6g is provided.

  The nozzle head 7 includes a fitting cylinder part 7a fitted to the upper end of the stem 5c, an outer cylinder wall part 7b outside the fitting cylinder part 7a, and a nozzle 7c protruding forward from the outer cylinder wall part 7b. And have. The contents that have passed through the inside of the stem 5c and the fitting cylinder portion 7a are ejected from an ejection port 7d that is a tip opening of the nozzle 7c. The shape of the nozzle head 7 is not particularly limited.

  As shown in FIG. 4, a cap 9 is attached to the cylindrical body portion 3 g provided on the bottom portion 3 f of the outer container 3. The cap 9 includes a cylindrical mounting cylinder portion 9a that is screwed into the cylindrical body portion 3g. A female screw portion 9b that can be screwed to a male screw portion 3h formed on the outer peripheral surface of the cylindrical body portion 3g is formed on the inner peripheral surface of the mounting cylindrical portion 9a. In addition, a sound or moderation feeling (click feeling) is generated on the inner peripheral surface of the upper end of the mounting cylinder portion 9a by getting over the vertical ribs 3i formed on the upper outer peripheral surface of the cylindrical body portion 3g. A vertical rib 9c is formed to notify the completion of mounting of the mounting cylinder portion 9a. Further, the vertical rib 3i can prevent the mounting cylinder portion 9a from rotating in the direction of detachment.

  A bottom wall portion 9e having three through holes 9d (see FIG. 5B) arranged at equal intervals in the circumferential direction is connected to the lower end portion of the mounting cylinder portion 9a. On the lower surface of the bottom wall portion 9e, a guide tube portion 9f that is cylindrical and surrounds the three through holes 9d is suspended. The cap 9 includes an elastic valve body 9h that is disposed on the upper surface of the bottom wall portion 9e and has a through hole 9g at the center. When the mounting cylinder portion 9a is screwed to the cylindrical body portion 3g, the elastic valve body 9h is brought into close contact with the distal end surface of the reduced diameter portion 3g1 of the cylindrical body portion 3g, and between the distal end surface and the bottom wall portion 9e. Also serves as a seal for sealing. Here, the distal end surface of the reduced diameter portion 3g1 is preferably arranged so as to cover a part of the through hole 9d, and the sealing performance can be improved by such an arrangement. In the present embodiment, the distal end surface of the reduced diameter portion 3g1 is disposed so as to cover the remaining portions excluding the inner peripheral edge portions of the three through holes 9d. When the mounting cylinder 9a is screwed to the cylinder 3g, the cylinder 3g can be guided into the mounting cylinder 9a by the reduced diameter portion 3g1 provided in the cylinder 3g. The body part 3g can be easily inserted into the mounting cylinder part 9a.

  Further, the elastic valve body 9h sits on the upper surface of the bottom wall portion 9e when the mounting cylinder portion 9a is screwed to the cylinder body portion 3g, and closes the through hole 9d of the bottom wall portion 9e. When the pressurized fluid is supplied to the through hole 9d, it is elastically deformed by the pressure of the pressurized fluid, and the pressurized fluid from the through hole 9d is added between the inner container 2 and the outer container 3 through the through hole 9g. It passes through the pressure space S. As described above, the cap 9 is attached to the cylindrical body portion 3g, and forms a check valve that allows passage of the pressurized fluid to the pressurized space S but prevents passage to the opposite side. is there.

  The support 10 has a cylindrical shape and an outer cylindrical portion 10 a that fits into the bottom 3 f of the outer container 3. At the upper end of the outer cylinder portion 10a, there is provided an engagement projection 10b that holds and holds the support 10 by engaging with an engagement projection 3j formed on the upper outer peripheral surface of the bottom 3f of the outer container 3. . The upper end surface of the outer cylinder portion 10 a is configured to be able to stand up independently by coming into contact with a stepped portion 3 e connected to the lower end of the body portion 3 a of the outer container 3. An annular bottom wall 10c that extends toward the inner periphery is connected to the lower end edge of the outer cylinder 10a. A cylindrical inner cylinder portion 10d is erected on the inner peripheral edge of the bottom wall portion 10c.

  A plurality of ridges 10e are formed on the inner peripheral surface of the inner cylinder portion 10d so as to be spaced apart in the circumferential direction and extend in the vertical direction. A plurality of protrusions 9i are formed on the outer peripheral surface of the mounting cylinder portion 9a of the cap 9 and spaced apart in the circumferential direction and extending in the vertical direction. And the some protrusion 10e of the inner cylinder part 10d and the some protrusion 9i of the mounting cylinder part 9a are mutually engageable.

  As shown in FIG. 5, in the present embodiment, the support 10 is formed integrally with the cap 9 via the planned break portion 11. More specifically, the planned fracture portion 11 is provided between the upper end surface of the inner cylindrical portion 10d of the support 10 and the lower end portions of the plurality of protrusions 9i provided on the mounting cylindrical portion 9a of the cap 9. Yes. The cap 9 (excluding the elastic valve body 9h) and the support 10 can be integrally formed by, for example, injection molding of a synthetic resin material.

  According to this configuration, the cap 9 and the support 10 can be attached to the outer container 3 in the following manner. That is, the cap 9 in a state before the support 10 shown in FIG. 5 is separated is screwed into the cylindrical portion 3g of the outer container 3. During the screwing, the outer cylindrical portion 10a of the support 10 can be used as a gripping portion. Even when the planned fracture portion 11 breaks during the screwing process, the plurality of protrusions 10e of the support 10 and the plurality of protrusions 9i of the mounting cylinder portion 9a are engaged with each other, so that the support 10 is It is possible to screw the cap 9 by rotating it. Therefore, the support 10 may be first slid upward and attached to the outer container 3, or may be attached during the screwing process, or after the screwing is completed (see FIG. 4).

  In addition, after the screwing is completed, even if the support 10 is rotated in the opposite direction, the inclined surfaces of the plurality of protrusions 10e of the support 10 and the plurality of protrusions 9i of the mounting cylinder portion 9a are in contact with each other. The ridges 10e over the plurality of ridges 9i, and the support 10 is idled. As described above, the support 10 and the cap 9 can be connected via the ratchet mechanism including the plurality of protrusions 10 e and 9 i, thereby facilitating the mounting operation of the cap 9 and after the cap 9 is mounted. Can prevent unintentional withdrawal.

  In addition, the point of use (discharge of contents) of the aerosol container 1 described above is as follows. First, prior to use (during the production of the aerosol container 1 or immediately before use), a predetermined amount of pressurized fluid is introduced into the pressurized space S through the through-hole 9d of the cap 9, and the inner container 2 is introduced by this pressurized fluid. The pressure is increased in the direction of reducing the volume. And by operating the nozzle head 7 in this state, the contents in the inner container 2 are discharged and the inner container 2 is reduced in volume. At this time, the volume reduction state of the inner container 2 is maintained by the pressure of the pressurized fluid.

  As described above, the aerosol container 1 according to the present embodiment includes the inner container 2 that accommodates the contents and can be reduced in volume as the contents decrease, and the outer container 3 that accommodates the inner container 2. , A discharge device (discharge valve 5 and nozzle head 7 in this example) attached to a cylindrical mouth portion 3d erected on the top of the outer container 3, and the bottom of the outer container 3 A cylindrical body portion 3g suspended from 3f, and the content of the pressurized fluid filled in the pressurized space S between the inner container 2 and the outer container 3 through the cylindrical body portion 3g. In the aerosol container 1 capable of injecting water from the discharge device, the check valve is screwed into the cylindrical body portion 3g and allows passage of the pressurized fluid into the pressurized space S, but prevents passage to the opposite side. The cap 9 is formed integrally with the cap 9 and the planned fracture portion 11, Breakable portion 11 is broken by has a structure that comprises a support 10 for self outer container 3 by fitting the outer container 3.

  Therefore, according to the aerosol container 1 which concerns on this embodiment, when providing the cap 9 attached to the cylinder part 3g and the support 10 which makes the outer container 3 self-supporting, the increase in a number of parts can be suppressed.

  Further, in the aerosol container 1 according to this embodiment, the cap 9 has a cylindrical shape and a mounting cylinder portion 9a that is screwed to the cylindrical body portion 3g, and a lower portion of the mounting cylinder portion 9a includes at least one through hole 9d. And a bottom wall portion 9e that is closed while leaving an elastic member, and an elastic valve body 9h that is seated on the upper surface of the bottom wall portion 9e.

  Therefore, according to the aerosol container 1 which concerns on this embodiment, the cap 9 which forms a non-return valve with a simple structure is realizable.

  Further, in the aerosol container 1 according to the present embodiment, the support 10 has a cylindrical shape and an outer cylindrical portion 10a fitted into the outer container 3, and an annular shape extending from the lower end edge of the outer cylindrical portion 10a to the inner peripheral side. A bottom wall portion 10c and a cylindrical inner cylinder portion 10d that stands up from the inner peripheral edge of the bottom wall portion 10c. The planned fracture portion 11 includes an upper end portion of the inner cylinder portion 10d and an outer periphery of the mounting cylinder portion 9a. It is configured to be provided between the surface.

  Therefore, according to the aerosol container 1 which concerns on this embodiment, the support 10 shape | molded integrally by the cap 9 via the planned fracture | rupture part 11 is realizable by simple structure.

  Further, in the aerosol container 1 according to the present embodiment, the planned fracture portion 11 is provided between the upper end portion of the inner cylinder portion 10d and the outer peripheral surface at the lower portion of the mounting cylinder portion 9a. The inner peripheral surface is formed with a plurality of protrusions 10e that are arranged at intervals in the circumferential direction and extend in the vertical direction. The outer circumferential surface of the mounting cylinder portion 9a is arranged at intervals in the circumferential direction. A plurality of protrusions 9i extending in the direction are formed, and the plurality of protrusions 10e of the inner cylinder part 10d and the plurality of protrusions 9i of the attachment cylinder part 9a are screwed onto the cylinder part 3g. When the support 10 is rotated in such a direction, they are engaged with each other.

  Therefore, according to the aerosol container 1 according to the present embodiment, the mounting cylinder portion 9a can be screwed to the cylindrical body portion 3g by rotating the support 10 as a gripping portion, so that the cap 9 can be easily attached. be able to.

  Further, in the aerosol container 1 according to the present embodiment, the plurality of protrusions 10e of the inner cylinder part 10d and the plurality of protrusions 9i of the attachment cylinder part 9a are directions in which the attachment cylinder part 9a is screwed off from the cylinder part 3g. When the support 10 is rotated, the two ride over each other and idle.

  Therefore, according to the aerosol container 1 which concerns on this embodiment, the unintentional detachment | leave after attachment of the cap 9 can be prevented.

  In the aerosol container 1 according to this embodiment, the elastic valve body 9h of the cap 9 is in close contact with the distal end surface of the cylindrical body portion 3g when the mounting cylindrical portion 9a is screwed to the cylindrical body portion 3g. It is the structure which serves as the packing which seals between the surface and the bottom wall part 9e.

  Therefore, according to the aerosol container 1 which concerns on this embodiment, the leak of a pressurized fluid can be reliably prevented with a simple structure.

Next, an aerosol container 1 ′ according to another embodiment of the present invention will be described in detail with reference to FIGS.
The aerosol container 1 ′ according to this embodiment is different from the above-described embodiment in that the shape of the outer peripheral surface of the mounting cylinder portion 9a ′ of the cap 9 ′ is different, and the shape of the inner cylinder portion 10d ′ of the support 10 ′. Are different, and are different in that the position of the planned fracture portion 11 ′ is different, but the other configurations are the same.

  That is, in the present embodiment, as shown in FIG. 7, on the outer peripheral surface of the mounting cylinder portion 9a ′ of the cap 9 ′, a plurality of protrusions 9j that are arranged at intervals in the circumferential direction and extend in the vertical direction are formed. ing. Further, as can be understood from FIG. 6, the inner cylinder portion 10 d ′ of the support 10 ′ has a length that can be supported by contacting the bottom portion 3 f of the outer container 3 when the support 10 ′ is attached to the outer container 3. Is formed. Furthermore, the planned fracture portion 11 'is provided between the upper end portion of the inner cylinder portion 10d' and the upper end portion of the mounting cylinder portion 9a '. In the present embodiment, the plurality of protrusions 10e provided in the above-described embodiment are not provided on the inner peripheral surface of the inner cylinder portion 10d '.

  According to such a configuration, the cap 9 ′ and the support 10 ′ can be attached to the outer container 3 in the following manner. That is, the cap 9 ′ before the support 10 ′ shown in FIG. 7 is separated is screwed into the cylindrical body portion 3 g of the outer container 3. In the screwing, a jig that can be engaged with the plurality of protrusions 9j can be used. That is, the cap 9 ′ can be attached by inserting the jig from below between the mounting tube portion 9a ′ and the inner tube portion 10d ′, and engaging and rotating the plurality of protrusions 9j. . Then, when the support 10 ′ is pushed upward after the cap 9 ′ is attached, the breakable portion 11 ′ is broken and attached to the outer container 3 (see FIG. 6).

  As described above, in the aerosol container 1 ′ according to the present embodiment, the planned fracture portion 11 ′ is provided between the upper end portion of the inner cylinder portion 10d ′ and the upper end portion of the attachment cylinder portion 9a ′. After the tubular portion 9a ′ is screwed to the tubular body portion 3g, the planned fracture portion 11 ′ is broken by further moving the support 10 ′ toward the outer container 3.

  Therefore, according to the aerosol container 1 ′ according to the present embodiment, the support 10 ′ formed integrally with the cap 9 ′ via the planned fracture portion 11 ′ can be realized with a simple configuration.

  The above description shows only one embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, in the case of the embodiment described with reference to FIGS. 1 to 5, when the support 10 is rotated in the screwing direction of the cap 9 or in the opposite direction, the plurality of ridges 10 e of the support 10. The plurality of protrusions 9i of the cap 9 may be engaged with each other. In such a configuration, by rotating the support 10 when the aerosol container 1 is discarded, the cap 9 can be detached from the cylindrical portion 3g to release the pressurized fluid. The disposal work can be facilitated.

1, 1 'Aerosol container 2 Inner container 2a Mouth part 2b Bag part 3 Outer container 3a Body part 3b Step part 3c Shoulder part 3d Mouth part 3e Step part 3f Bottom part 3g Cylindrical part 3g1 Reduced diameter part 3h Male thread part 3i Vertical rib 3j Engagement protrusion 4 Double container 5 Discharge valve (discharge device)
5a Flange 5b Housing 5c Stem 5d Packing 5e Mounting cap 5f Coil spring 5g Injection passage 5h Communication passage 5i Protruding portion 5j Stem rubber 5k Upper surface portion 5l Bottom portion 5m Engagement portion 6 Fixing plate 6a Middle portion 6c Inclined portion 6c Inclined portion 6c 6d Lower cylinder part 6e Upper latching protrusion 6f Lower latching protrusion 6g Projection 7 Nozzle head (discharge device)
7a fitting cylinder part 7b outer cylinder wall part 7c nozzle 7d spout 8 overcap 8a side wall part 8b top wall part 8c engaging projection 9, 9 'cap 9a, 9a' mounting cylinder part 9b female screw part 9c vertical rib 9d through hole 9e bottom wall portion 9f guide tube portion 9g through hole 9h elastic valve element 9i protrusion 9j protrusion 10, 10 'support 10a outer tube portion 10b engagement protrusion 10c bottom wall portion 10d, 10d' inner tube portion 10e protrusion 11, 11 'Planned fracture part O Axis S Pressurizing space

Claims (6)

A double container having an inner container that can contain the contents and can be reduced in volume as the contents are reduced, and an outer container that accommodates the inner container, and a cylinder that is erected on the upper part of the outer container A discharge device attached to the mouth portion, and a cylindrical body portion that is suspended from the bottom of the outer container, and is interposed between the inner container and the outer container through the cylindrical body portion. In an aerosol container capable of injecting the contents from the discharge device by the pressure of a pressurized fluid filled in a pressure space,
A cap that is screwed into the cylindrical body portion to form a check valve that allows passage of the pressurized fluid into the pressurized space while preventing passage of the pressurized fluid to the opposite side;
The cap is formed integrally with the planned breakage portion, and includes a support that allows the outer container to be self-supporting by breaking the planned breakage portion and fitting into the outer container .
The cap has a cylindrical shape and is screwed into the cylindrical body portion, a bottom wall portion that closes a lower portion of the mounting cylindrical portion leaving at least one through hole, An aerosol container comprising an elastic valve body seated on an upper surface . The support has a cylindrical shape and an outer cylindrical portion that fits into the outer container, an annular bottom wall extending from the lower end edge of the outer cylindrical portion to the inner peripheral side, and an inner peripheral edge of the bottom wall. An inner cylinder part that forms a cylindrical shape,
The breakable portion includes an upper end portion of the inner cylindrical portion, is provided between the outer peripheral surface of the hollow mounting portion, the aerosol container according to claim 1. The planned fracture portion is provided between an upper end portion of the inner cylinder portion and an outer peripheral surface at a lower portion of the mounting cylinder portion,
On the inner peripheral surface of the inner cylinder portion, a plurality of ridges are formed that are arranged at intervals in the circumferential direction and extend in the vertical direction.
On the outer peripheral surface of the mounting cylinder portion, a plurality of protrusions are formed extending in the vertical direction and spaced apart in the circumferential direction.
The plurality of protrusions of the inner cylinder part and the plurality of protrusions of the mounting cylinder part are engaged with each other when the support is rotated in a direction in which the mounting cylinder part is screwed to the cylinder body part. The aerosol container according to claim 2 . The plurality of ridges of the inner cylinder part and the plurality of ridges of the mounting cylinder part cross over each other when the support is rotated in a direction to unscrew the mounting cylinder part from the cylinder body part. The aerosol container according to claim 3 . The planned fracture portion is provided between the upper end portion of the inner cylinder portion and the upper end portion of the mounting cylinder portion,
The aerosol container according to claim 2 , wherein, after the mounting cylinder part is screwed to the cylindrical body part, the planned fracture part is broken by further moving the support toward the outer container. The elastic valve body of the cap seals between the distal end surface and the bottom wall portion in close contact with the distal end surface of the tubular body portion when the mounting tubular portion is screwed to the tubular body portion. The aerosol container according to any one of claims 1 to 5 , which also serves as a packing.

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