JP2015012806A - Capsule and cigarette with filter using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a capsule, the whole body of which is flattened, when subjected to external force.SOLUTION: A capsule 1 is easily fractured by external force to discharge contents having fluidity that are held inside. The capsule includes a substantially cylindrical capsule body 10 that opens the internal space by opening one end, and a lid member 20 that closes the opening end. The capsule 1 is constituted so that, when subjected to the external force, the whole capsule body 10 cab be flattened. Further, the capsule 1 is constituted so that, when subjected to the external force and elastically deformed, the capsule 1 is fractured based on pressure of the contents. Furthermore, the lid member 20 includes a flattening structure so as to be flattened with the deformation of the capsule body.

Description

  The present invention relates to a capsule suitable for a cigarette filter and a cigarette with a filter employing the capsule.

There have been various proposals for techniques for improving the flavor by incorporating a so-called water capsule in a filter disposed at one end of a cigarette. In the water capsule, water or a solution containing a tobacco extract or a fragrance is adopted as an aqueous solution, and the flavor is improved as appropriate.
Specifically, various proposals have been made for cigarette water filters in which easily destructible water capsules are filled with a predetermined aqueous liquid between filter materials or cigarettes to which such filters are applied. was there. In a cigarette to which such a water filter is applied, when a user (smoker) smokes, a predetermined part of the water capsule breaks by applying an external force so that the filter part is squeezed between fingers with a finger. As a result, the aqueous liquid is ejected and impregnated in the filter material.
The above-described water capsule is easy to handle because it is devised so that the internal water liquid does not leak unless it is destroyed by applying an external force of a certain level or more. Therefore, if such a water capsule is prepared in advance, it is possible to manufacture a filter loaded with a water capsule by simply changing the facilities of a conventional filter manufacturing factory (Patent Document 1, Patent Document). 2, Patent Document 3, etc.).

Japanese Patent Publication No.6-2164 Japanese Patent No. 2515794 Special table 2008-528053

As described above, a water capsule applied to a conventional cigarette is provided with an easily breakable portion (easy breakable portion) when the user applies an external force that sandwiches the filter with a finger, and the aqueous liquid flows out. (Release).
However, although the conventional water capsule is focused on reliably destroying it when subjected to external force, the liquid capsule (contents) completely flows out with the capsule completely crushed. There is no consideration.
Therefore, in the conventional water capsule, even if the easily breakable portion is broken as described above and the aqueous liquid flows out, the aqueous liquid may remain in the capsule after destruction. In this case, there is a possibility that the outflow ratio of the contents changes depending on the crushing force of the user and the number of crushing operations, and the same cigarette causes variations in the flavor.

An object of the present invention is to provide a capsule suitable for a cigarette filter, which has a structure that allows the entire capsule to be flattened when an external force is applied and allows the entire content to flow out, and a filter employing this capsule. It is to provide a cigarette with.
In the capsule of the present invention, the content to be held is not limited to water liquid, but is made of liquid, solid, or both, and has at least fluidity. That is, the present invention naturally includes a conventional water capsule, and further relates to a capsule that holds a fluid content as a whole even when a small solid such as a microcapsule is included. is there.

The object described above includes a substantially cylindrical capsule body that opens at one end to open an internal space, and a lid member that closes the open end, and a liquid is formed in a space formed by the capsule body and the lid member. The capsule body and the lid member are made of a material that can be elastically deformed, and the capsule body and the lid member are made of an elastically deformable material. A capsule configured to drain the contents,
The entire capsule body is formed so as to be flattened when subjected to the external force,
Further, the capsule is formed so as to be broken based on the pressure of the contents when elastically deformed by receiving the external force, and the lid member is flattened as the capsule body is deformed. It is achieved by a capsule characterized in that it comprises a planarizing structure that does (claim 1).

The capsule body includes the body body portion formed in a hollow polygonal column shape and a head portion formed as the other end and having a polygonal pyramid shape corresponding to the shape of the body body portion, Of the plurality of prism part parts constituting the part, adjacent two prism part parts are connected via a first coupling part capable of expanding / contracting the inner angle formed by these prism part parts, and constitute the head. Among the plurality of pyramid parts, two adjacent pyramid parts are connected via a second coupling part that enables expansion and contraction of the internal angle formed by these pyramid parts, and when the capsule body receives the external force It is preferable that the entirety is formed so as to be flattened (Claim 2).
Furthermore, it is preferable that the numbers of the prismatic part parts and the pyramid part parts are even numbers, respectively.
In addition, it is preferable that the first coupling portion and the second coupling portion are thin portions, and the second coupling portion is formed thinner than the first coupling portion. .
The head preferably has a structure protruding outward from the body body (claim 5).

The flattening structure of the lid member may include a polygonal pyramid-shaped member formed in the same shape as the head or a seal film stretched around the opening end (Claim 6).
Further, it is desirable that the polygonal pyramid-shaped member as the lid member is provided so as to protrude into the inside of the body main body (Claim 7).

Further, the content may include any of water, water to which a fragrance is added, and water containing a fragile minute solid that includes the fragrance (Claim 8).
Preferably, the elastically deformable material is any food plastic material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, polyvinyl alcohol, and polyamide. ).

The above object is also achieved by a cigarette with a filter including a filter including any of the capsules described above (claim 10).
The filter includes a first filter element positioned on the cigarette side, a second filter element positioned on the suction side, and a storage space secured between the first and second filter elements. It is desirable that the capsule is housed in a posture in which the head is directed toward the first filter element (claim 11).

In the capsule according to the present invention, when it is deformed and destroyed by external force, the structure is flattened as a whole, so that a part of the capsule is broken and the fluid content inside is broken. After the outflow, almost the entire amount can be made to the outside.
Therefore, a cigarette with a filter in which such a capsule is mounted on a filter can flow out almost all the contents held when the capsule is broken and move to the filter side. Can be achieved.

It is the figure shown about the case where the capsule which concerns on this invention is applied to the cigarette with a filter. It is the figure which expanded and showed the capsule body of the capsule shown in FIG. It is the figure which expanded and showed the cover member of the capsule shown in FIG. FIG. 4 is an enlarged view showing a state in which the capsule body of FIG. 2 and the lid member of FIG. 3 are combined to form a capsule.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example in which the capsule according to the present invention is employed in a filter in a cigarette FC with a filter.
This cigarette FC with a filter is configured by arranging a filter plug 101 at one end of a cigarette 100 that is formed as a rod by winding a cigarette with thin paper. The filter plug 101 includes a filter constituted by two filter elements described later inside a flexible casing 102, and the casing 102 is constituted by, for example, a hollow paper tube. And the cigarette 100 and the filter plug 101 are connected via the chip paper 103 arrange | positioned so that both may be set, and it is set as one cigarette FC with a filter.

In the casing 102, a first filter 104a serving as a first filter element and a second filter 104b serving as a second filter element, which are spaced apart from each other so as to be positioned at both ends, are disposed. The material of these filters 104a and 104b can be the same material as the filter material used for a normal cigarette with a filter, that is, an acetate fiber, and may further contain charcoal. A paper filter or the like can also be used.
The first filter 104a located at one end of the casing 102 is on the cigarette side, and the second filter 104b located at the other end constitutes a mouthpiece. Since the first filter 104a and the second filter 104b are spaced apart from each other as described above, a space is secured between them, and the capsule 1 is accommodated inside the space as a storage space 105. .

The capsule 1 includes a substantially cylindrical capsule body 10 that is open at one end 10a to open the internal space SP, and a lid member 20 that closes the open end 10a. The fluid content WA is held in a sealed space (closed internal space SP) formed by the capsule body 10 and the lid member 20. Further, the capsule body 10 and the lid member 20 are formed of an elastically deformable material, and are configured such that the capsule body 10 is broken when the external force is applied, and the content WA flows out.
FIG. 1 shows an example in which the capsule 1 is simply disposed in the storage space 105 (cavity) between the first filter 104a and the second filter 104b. However, the present invention is limited to such a form. It is not a thing. For example, the same fiber as the filter material may be disposed on the outer periphery of the capsule 1. In addition, it is desirable to employ a water-resistant treatment applied to at least one of the casing 102 and the chip paper 103 serving as a paper tube.
Furthermore, the capsule 1 will be described in detail with reference to FIGS.

FIG. 2 is an enlarged view showing the capsule body 10 of the capsule 1. FIG. 3 is an enlarged view of the lid member 20 of the capsule 1. FIG. 4 is an enlarged view showing a state in which the capsule body 10 and the lid member 20 are combined to form the capsule 1.
2A is an external perspective view of the capsule body 10, FIG. 2B is a plan view of the capsule body 10, FIG. 2C is a cross-sectional view taken along line AA in FIG. 2B, and FIG. FIG. 2E is a sectional view taken along line BB in FIG. 2B, FIG. 2E is a sectional view taken along line CC in FIG. 2C, and FIG. Each of FIG. 3A to FIG. 3F is a view showing the lid member 20 as in FIG. 4 (a) is a plan view of the capsule 1, FIG. 4 (b) is an AA sectional view in (a), and FIG. 4 (c) is a BB sectional view in (a).

  In FIG. 2, the capsule body 10 is hollow and has an even polygonal prism shape (in the example, a hexagonal prism shape), and an even polygonal pyramid shape (in the example, corresponding to the shape of the body body portion 11). , A hexagonal pyramid shape). The head 15 is integrally formed so as to protrude outward from the body main body 11.

The body main body 11 includes six prismatic part parts 12a to 12f (12c to 12e located on the back side in FIG. 2A) constituting a cylindrical hexagonal prism, and these prisms. Six coupling parts (first coupling parts) 13a to 13f (13c to 13e located on the back side in FIG. 2A) that connect the interior angles formed by the adjacent part parts between the part parts so as to be expandable / contractable are shown. (Not shown).
The head 15 is also formed in the same manner. That is, the head 15 has six connecting portions that connect the six corners of the pyramid part 16a to 16f constituting the hexagonal pyramid shape and the internal angles formed by the adjacent parts between the pyramid parts so as to be expandable / contractable. (Second coupling portion) 17a to 17f.
The body body portion 11 and the head portion 15 are integrally formed using a plastic material having appropriate elasticity to constitute the capsule body 10.
In addition, the annular connection part 18 located between the body main body part 11 and the head part 15 is also adjacent to each of the prism part parts 12a to 12f and the pyramid part parts 16a to 16f (in this case, for example, It is preferable to form it as a coupling part (third coupling part) that can expand and contract the internal angle formed by the prismatic part part 12a and the pyramid part part 16a) (see FIG. 2A).

  Therefore, when the body main body 11 of the capsule body 10 receives an external force that crushes the capsule body 10, the pair of coupling portions at the opposing positions are bent in a U shape so that the inner angle is reduced most. Thus, the other joints are stretched, and the inner angle is maximized to an angle of 180 degrees. As a result, the body main body 11 can be folded in two. At this time, the coupling portion (second coupling portion) of the head portion 15 is bent along with the deformation of the body main body portion 11, and the head portion 15 is also deformed into a folded state, so that the capsule body 10 The whole will be flattened. At this time, the space SP in the capsule body 10 is almost disappeared.

And when the said coupling | bond part (2nd coupling | bond part) 17a-17f provided in the head 15 side receives external force and deform | transforms, based on the pressure from the fluid content WA hold | maintained inside, It is formed so as to be broken more easily than other parts. For example, in the capsule body 10 formed of a plastic material, the coupling parts (second coupling parts) 17a to 17f provided on the head 15 side are coupled to the coupling parts (first coupling parts) 13a to 13a provided on the body main body part 11. By forming it sufficiently thinner than 13f, it is easily set to be easily breakable. That is, in the capsule 1, this thin structure realizes a coupling portion.
FIG. 2E shows an enlarged portion of the coupling portion (thin portion) 17e of the head portion 15, and the thickness t of the thin portion is sufficient as compared with the original thickness T of the head portion 15. The inner angle formed by the adjacent parts can be enlarged and reduced, and the structure is easy to break (easy to cut). In FIG. 2 (e), a V-shaped cut (cut angle α, for example, 30 °) is provided from the inside to confirm a thin state.
On the other hand, as for the connecting portions (first connecting portions) 13a to 13f formed in the body main body 11 and the connecting portion 18 (third connecting portion), the inner angle easily expands / contracts (bends), which causes destruction. It is desirable to form so that it does not reach.

Furthermore, the lid member 20 that closes the open end 10a of the capsule body 10 will be described with reference to FIG. The lid member 20 is formed to include a flattening structure that flattens in accordance with the deformation of the capsule body 10 that can be flattened as described above. The lid member 20 should be flattened so as not to be an obstacle when the capsule body 10 is flattened. And it is calculated | required that it is a member which ensures the state which the coupling | bond parts 17a-17f of the head 15 destroy and the content flows out. For this reason, the lid member 20 uses an adhesive, a heat-sealing process, or the like so as not to be broken by the pressure of the contents or fall off from the opening end 10a before the coupling portions 17a to 17f are broken. It is securely fixed.
FIG. 3 exemplifies the lid member 20 formed in a suitable structure, and is formed in a pyramid shape similar to the head 15. That is, the lid member 20 shown in FIG. 3 also has six pyramid part parts 21a to 21f that form a hexagonal pyramid shape, and six coupling parts (fourth parts) that connect each of these pyramid part parts in a bendable manner. Coupling portions) 22a to 22f. With the lid member formed in such a structure, when the capsule body 10 is deformed and flattened as described above, it is flattened accordingly. In addition, although the connection parts 22a-22f of the cover member 20 are also bent easily, it is desirable to form as a thin part which does not reach destruction.

  The lid member 20 has a regular hexagonal ring frame portion 23 formed on the outer periphery of six adjacent pyramid part portions 21a to 21f. When the ring frame portion 23 is fitted into the inner periphery of the opening end 10a of the capsule body 10, the space SP in the capsule body 10 becomes a sealed space, and the contents WA can be held. That is, as shown in FIG. 4, the capsule 1 can be formed by fitting the lid member 20 of FIG. 3 into the opening end 10a of the capsule body 10 of FIG.

  By the way, as shown in FIG. 4, the lid member 20 is formed in a hexagonal pyramid shape (even polygonal pyramid shape) like the head portion 15 of the capsule body 10, but it is projected direction (the direction of the apex of the pyramid). Is different. That is, rather than projecting outward like the head 15, the lid member 20 is provided so as to project into the body main body 11. If formed in this way, the strength against external force can be weakened (increasing ease of breakage), and folding can be facilitated (flat) as compared with the case where the lid member 20 is formed flat, for example, vertically. Can be expected). When the lid member 20 is deformed in this way, the space in which the fluid contents are sealed is reduced to increase the internal pressure. A secondary effect that the destruction of 16f can be promoted can also be expected.

The capsule body 10 and the lid member 20 described above are formed of an elastically deformable material. The material is preferably a food plastic material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, polyvinyl alcohol and polyamide.
Further, as described above, the capsule 1 is filled with the contents WA. If the contents WA have a fluidity that can flow when the capsule is broken, the conventional water liquid is used. Not limited to this, it may be composed of a liquid, a solid, or both.
That is, as the contents WA, first, either simple water, water-hydrophilic flavor, or hydrophobic flavor can be employed. In the case of a hydrophobic flavor, it may be incorporated in an emulsified state, or a solvent such as propylene glycol or ethanol may be used. More specifically, for example, a solution in which sugar, tobacco extract, fragrance, or the like is dissolved in water, or a solution based on water such as a brandy can be employed as the content WA. If necessary, a chemical solution for preventing alteration may be mixed.
Furthermore, a fine solid such as a microcapsule containing a fragrance (fragrance capsule) may be adopted as the content WA, and the fragrance capsule is suspended in a liquid as the content WA. May be.

Referring to FIG. 1 again, the capsule 1 is arranged such that the head 15 of the capsule body 10 is close to the first filter 104a on the cigarette side. That is, since the content is impregnated in the first filter 104a on the side far from the suction port, the content does not flow out to the suction port and the taste is not impaired.
Further, the outer diameter of the capsule body 10 of the capsule 1 is sufficiently smaller than the inner diameter of the casing 102, so that, as is apparent from FIG. 1, there is no gap between the inner surface of the casing 102 and the outer surface of the capsule body 10. Regardless of the presence of the capsule 1, a sufficient smoke flow path for guiding the smoke flow from the cigarette 100 through the filters 104a and 104b to the above-described suction port is secured.

Next, an operation by a user (smoker) who smokes the cigarette FC with a filter including the capsule 1 described above will be described. When the user pinches the filter plug 101 with a finger and applies a force from the outside so as to crush the filter plug 101 as shown by an arrow AR in FIG. The capsule 1 is elastically deformed.
Here, the capsule body 10 has a hexagonal columnar body main body 11 and a hexagonal pyramid head 15, and the lid member 20 that closes the opening end 10 a at the bottom also has a hexagonal pyramid shape. Therefore, even when the body main body 11 is in an unstable posture when it receives an external force, the posture tends to become a plane that is perpendicular to the axis on which the external force acts. The whole is flattened. At that time, the pressure of the contents WA sealed in a liquid-tight state increases and acts on the periphery, but since the coupling portions 16a to 16f of the head 15 are set to be easily broken, at least a part thereof Is destroyed by pressure.

  As a result, the content WA in the capsule 1 flows out toward the first filter 104a. Finally, the entire capsule 1 is flattened, and the internal space is substantially eliminated, so that the entire amount of contents is reliably discharged and does not remain in the container.

  After this, the user turns on the cigarette FC with filter and smokes. As described above, since the contents are impregnated in the first filter 104a during the smoking, the contents can reduce water-soluble components contained in the smoke flow from the cigarette 100. The flavor is added and the flavor is improved, but at that time, almost all of the contents in the capsule are always spilled out, so the user should enjoy the evenly improved incense smoking. Can do.

Hereinafter, the Example which employ | adopted the capsule of this invention for the cigarette with a filter is described.
(Example)
As an example of the capsule described above, a water capsule whose content is water was manufactured and applied to a cigarette with a filter.
A water capsule was manufactured by injection molding using low density polyethylene (Nippon Polyethylene Co., Ltd., Novatec LD) as an edible plastic material. The connecting portion (thin wall portion) described above is formed by a mold used for molding.
With the open end of the body part of the water capsule open, 45 mg of distilled water is injected inside, and a lid member is fitted (set) to the open end to make the inside liquid-tight. A heat-sealing polyamide (aramid) / low density polyethylene laminate sheet (NY # 15 / DL / AJ-1, 70 μm, manufactured by Tamapoly Co., Ltd.) to completely seal it, and a water capsule as an example of the capsule of the present invention Got.

A filter cigarette equipped with the water capsule was manufactured by modifying the filter portion of a commercially available cigarette with a filter.
Specifically, two cellulose acetate filters (2.5Y / 35000) cut to a length of 10 mm were prepared and used as the first filter (104a) and the second filter (104b). Using tweezers, except for the filter that was initially set, the two filters were placed 7 mm apart to form a storage space (105), in which the water capsule (1) Set. The water capsule was set so that the head (15) side faces the cigarette (100) side. The chip paper (103) and the casing (102) were closed to obtain a cigarette with a filter (FC).

  The filter part of the cigarette was picked with a finger to destroy the internal water capsule. As a result of disassembling and confirming the filter part, it was confirmed that the water inside was transferred to the first filter on the cigarette (100) side, and no water remained in the capsule body.

  Since the capsule according to the present invention described above is configured to be flattened when an external force is applied, it can be completely removed when it breaks and the internal contents flow out. Therefore, according to the cigarette with a filter that employs such a capsule in the filter portion, it is possible to make the flavor improved when the capsule is used uniform.

  The above description is based on the premise that the filter material is impregnated with a fluid content. However, in the case of the cigarette FC with a filter employing the capsule of the present invention, the cigarette 100 is not destroyed without destroying the capsule. You can also enjoy the original savory taste. That is, since the cigarette FC with a filter adopting the present invention has a passage for guiding the smoke flow from the cigarette 100 to the mouthpiece without breaking the capsule body, the user can attach a normal filter according to his / her preference. It can be used as a cigarette and smoked.

In addition, this invention is not limited to embodiment mentioned above.
Regarding the shape of the body main body 11, the body main body 11 has an even-numbered polygonal column shape from the viewpoint of a more suitable shape. In the above-described embodiment, the body main body unit 11 has a hexagonal column shape. Also good.
However, since the capsule according to the present invention is formed of a plastic material having elasticity, it is not an even polygonal column shape as described above (for example, an odd-numbered 9-prism body body and head). However, flattening can be expected in the same manner as described above when destroyed. Furthermore, the shape of the body main body 11 need not be particularly limited as long as the material is subjected to an external force on the side surface and the deformation progresses and finally flattenes.

  In the above-described embodiment, the lid member 20 that closes the opening of the capsule body 10 has the same shape as the head 15, but is not limited thereto. When the capsule body 10 is flattened, a film-like heat seal may be used as long as the contents are not leaked without inhibiting the deformation. When such a seal film is employed, it may be bonded to the opening edge 10a of the capsule body 10 with a thermoplastic adhesive. As this adhesive, for example, a hot melt adhesive mainly composed of an adhesive polyolefin resin, low molecular weight polyethylene and EVA (ethylene vinyl alcohol) can be used.

  In the above embodiment, the capsule applied to a cigarette with a filter has been described. However, the capsule according to the present invention is not limited to the application of the filter attached to the cigarette as described above. That is, the capsule of the present invention may be applied to a commercially available water pipe that is retrofitted to a cigarette. In the case of a water pipe, the casing is mostly made of synthetic resin, but the above-described capsule of the present invention may be disposed inside. In the case of a water pipe, the number of filter materials is only one on the content discharge side.

DESCRIPTION OF SYMBOLS 1 Capsule 10 Capsule body 10a Open end 11 Body main body part 12a-12f Prismatic part part 13a-13f 1st coupling | bond part 15 Head 16a-16f Pyramid part part 17a-17f 2nd coupling | bond part 18 Connection part (3rd Joint)
20 Lid member 100 Cigarette 101 Filter plug 102 Casing 104a First filter 104b Second filter 105 Storage space FC Cigarette with filter SP Internal space (liquid tight space)
WA fluid content

Claims (11)

A substantially cylindrical capsule body that opens at one end to open an internal space, and a lid member that closes the open end, and a liquid, a solid, or the like in a space formed by the capsule body and the lid member The capsule body and the lid member are formed of an elastically deformable material, and the capsule body and the lid member are formed of an elastically deformable material. The capsule body is broken when the external force is applied, and the contents flow out. A capsule configured as follows:
The entire capsule body is formed so as to be flattened when subjected to the external force,
The capsule is formed so as to break based on the pressure of the contents when elastically deformed by receiving the external force,
Furthermore, the lid member includes a flattening structure that flattens as the capsule body deforms.
Capsule characterized by that. The capsule body includes the body main body portion formed in a hollow polygonal column shape, and a head that is formed as the other end and has a polygonal pyramid shape corresponding to the shape of the body main body portion,
Of the plurality of prismatic part parts constituting the body main body part, two adjacent prismatic part parts are connected via a first coupling part capable of expanding / contracting an internal angle formed by these prismatic part parts, and the head When the two adjacent pyramid parts are connected via a second coupling part that enables expansion and contraction of the internal angle formed by these pyramid parts, and receives the external force The entire capsule body is formed so as to be flattened.
The capsule according to claim 1.   The capsule according to claim 2, wherein the number of the prism part parts and the pyramid part parts is an even number.   The first coupling portion and the second coupling portion are thin-walled portions, and the second coupling portion is formed thinner than the first coupling portion. The capsule described.   The capsule according to any one of claims 2 to 4, wherein the head projects outward from the body main body.   The capsule according to claim 2, wherein the flattening structure of the lid member includes a polygonal pyramid-shaped member formed in the same shape as the head, or a seal film stretched on the opening end.   The capsule according to claim 2, wherein the polygonal pyramid-shaped member as the lid member is provided so as to protrude into the inside of the body main body.   The capsule according to any one of claims 1 to 7, wherein the content includes any of water, water to which a fragrance is added, and water including a fragile minute solid encapsulating the fragrance.   The elastically deformable material is any food plastic material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyethylene terephthalate, polyvinyl alcohol and polyamide. To 8. The capsule according to any one of 1 to 8.   A cigarette with a filter, comprising a filter comprising the capsule according to claim 1. The filter includes a first filter element located on the cigarette side and a second filter element located on the suction side, and a storage space secured between the first and second filter elements,
The cigarette with a filter according to claim 10, wherein the capsule is housed in the housing space in a posture in which the head is directed to the first filter element side.

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