JP7162342B2 - Cap member for water purifier cartridge - Google Patents

Cap member for water purifier cartridge Download PDF

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JP7162342B2
JP7162342B2 JP2019026771A JP2019026771A JP7162342B2 JP 7162342 B2 JP7162342 B2 JP 7162342B2 JP 2019026771 A JP2019026771 A JP 2019026771A JP 2019026771 A JP2019026771 A JP 2019026771A JP 7162342 B2 JP7162342 B2 JP 7162342B2
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shaft member
cap member
diameter portion
insertion hole
adhesive
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JP2020131098A (en
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陽 松尾
亮 池成
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Takagi Co Ltd
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Takagi Co Ltd
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Description

本発明は、浄水器用カートリッジに使用されるキャップ部材に関する。 The present invention relates to a cap member used in a water purifier cartridge.

浄水器としては、例えば、水道水の蛇口に直結して使用する蛇口直結型のもの、蛇口の内部に一体的に設置する蛇口一体型のもの、蛇口または蛇口に設けた分岐水栓からホースまたは配管などで接続して、蛇口近傍に設置する据え置き型のもの、シンクの内部に設置して使用するアンダーシンク型のもの、家庭や飲食店などの屋内、あるいは、屋外に持運んで使用できる携帯型のもの（例えば、ピッチャー型浄水器、ポット型浄水器）などが知られている。 Water purifiers include, for example, a faucet-connected type that is directly connected to a tap water faucet, a faucet-integrated type that is integrally installed inside the faucet, a faucet or a branch faucet provided on the faucet that connects to a hose or A stationary type that is installed near the faucet by connecting with a pipe, an undersink type that is installed inside the sink, and a portable type that can be carried indoors such as homes and restaurants, or outdoors. Types (for example, pitcher-type water purifiers, pot-type water purifiers) are known.

このような浄水器では、水道水から残留塩素（次亜塩素酸）、カビ臭、濁り、微生物等を除去するために活性炭や中空糸膜などの吸着材が使用されている。また、このような浄水器では、汚れた吸着材の交換を容易にするため、吸着材を備えた浄水器用カートリッジを交換可能に収容することが提案されている（例えば、特許文献１、２）。 Such water purifiers use adsorbents such as activated carbon and hollow fiber membranes to remove residual chlorine (hypochlorous acid), musty smell, turbidity, microorganisms, and the like from tap water. Further, in such a water purifier, it has been proposed to replaceably house a water purifier cartridge provided with an adsorbent in order to facilitate replacement of the soiled adsorbent (for example, Patent Documents 1 and 2). .

特開２０１２－２０２７号公報Japanese Unexamined Patent Application Publication No. 2012-2027 特開２０１６－１１７００２号公報Japanese Unexamined Patent Application Publication No. 2016-117002

浄水器用カートリッジとしては、筒状の軸部材と、前記軸部材の外周面に形成された成形吸着体と、前記軸部材の一方端に取り付けられたキャップ部材と、前記軸部材の他方端に取り付けられたカバー部材とを有するものがある。このような構成では、キャップ部材やカバー部材は、接着剤を用いて軸部材に固着される。しかしながら、接着剤の使用量が多い場合、接着剤が筒孔にはみ出し、浄水の流路を狭めてしまい、浄水器の性能が低下する傾向がある。また、接着剤の使用量が少ない場合、接合部の接着強度が低下し、破損しやすくなる傾向がある。 The water purifier cartridge includes a cylindrical shaft member, a molded adsorbent formed on the outer peripheral surface of the shaft member, a cap member attached to one end of the shaft member, and attached to the other end of the shaft member. There is also one that has a covered cover member. In such a configuration, the cap member and cover member are fixed to the shaft member using an adhesive. However, when a large amount of adhesive is used, the adhesive protrudes into the cylindrical hole and narrows the flow path of purified water, which tends to reduce the performance of the water purifier. Also, when the amount of the adhesive used is small, the bonding strength of the joint is lowered, and the joint tends to be easily damaged.

本発明は上記事情に鑑みてなされたものであり、筒状の軸部材と、前記軸部材の外周面に形成された成形吸着体と、前記軸部材の一方端に取り付けられたキャップ部材とを有する浄水器用カートリッジにおいて、軸部材に対して強固に接着することができ、かつ、接着剤が筒孔にはみ出すことを抑制できるキャップ部材を提供することを目的とする。 The present invention has been made in view of the above circumstances, and includes a cylindrical shaft member, a shaped attracting body formed on the outer peripheral surface of the shaft member, and a cap member attached to one end of the shaft member. It is an object of the present invention to provide a cap member that can be firmly adhered to a shaft member and that can suppress the adhesive agent from protruding into a cylindrical hole in a water purifier cartridge.

上記課題を解決することができた本発明のキャップ部材は、筒状の軸部材と、前記軸部材の外周面に形成された成形吸着体と、前記成形吸着体と当接する平面部と、前記軸部材の一方端が挿嵌され、前記軸部材の筒孔と連通する挿入孔とを有するキャップ部材とを有する浄水器用カートリッジに使用されるキャップ部材であって、前記キャップ部材の挿入孔は、前記軸部材が挿嵌される面側から順に、大径部と、前記大径部よりも内径が小さい小径部とを有し、前記大径部の内周面には前記軸部材の外周面に当接する位置決め部材が設けられていることを特徴とする。 The cap member of the present invention, which can solve the above problems, comprises a cylindrical shaft member, a shaped adsorbent formed on the outer peripheral surface of the shaft member, a planar portion in contact with the shaped adsorbent, and the A cap member for use in a water purifier cartridge having a cap member into which one end of the shaft member is inserted and having an insertion hole communicating with the cylindrical hole of the shaft member, wherein the insertion hole of the cap member is A large-diameter portion and a small-diameter portion having an inner diameter smaller than that of the large-diameter portion are provided in order from the surface on which the shaft member is inserted, and the inner peripheral surface of the large-diameter portion is the outer peripheral surface of the shaft member. A positioning member is provided that abuts on the.

キャップ部材の挿入孔が、大径部と小径部とから構成されているため、この挿入孔に軸部材を挿嵌すると、大径部では軸部材との隙間が大きく、小径部では軸部材との隙間が小さくなる。そのため、接着剤を用いてキャップ部材を軸部材に固着する際に、大径部では、キャップ部材と軸部材との隙間に接着剤が入り込むことができ、接着面積が増加して接着強度が向上する。また、小径部では、キャップ部材と軸部材との隙間に接着剤が入り込みにくくなるため、接着剤が軸部材の筒孔へはみ出すことが防止される。 Since the insertion hole of the cap member is composed of a large diameter portion and a small diameter portion, when the shaft member is inserted into the insertion hole, the gap between the shaft member and the shaft member is large at the large diameter portion, and the gap between the shaft member and the shaft member is large at the small diameter portion. gap becomes smaller. Therefore, when the cap member is fixed to the shaft member using an adhesive, the adhesive can enter the gap between the cap member and the shaft member at the large diameter portion, increasing the bonding area and improving the bonding strength. do. Further, in the small-diameter portion, since it is difficult for the adhesive to enter the gap between the cap member and the shaft member, the adhesive is prevented from overflowing into the cylindrical hole of the shaft member.

さらに、大径部の内周面に位置決め部材が設けられているため、軸部材の芯ずれが抑制され、軸部材外周と大径部内周との隙間が均一となる。そのため、軸部材の周方向にわたって均一に接着剤が付与され、接着強度がより向上する。 Furthermore, since the positioning member is provided on the inner peripheral surface of the large-diameter portion, misalignment of the shaft member is suppressed, and the gap between the outer periphery of the shaft member and the inner periphery of the large-diameter portion becomes uniform. Therefore, the adhesive is applied uniformly over the circumferential direction of the shaft member, and the adhesive strength is further improved.

本発明のキャップ部材を用いれば、浄水器用カートリッジにおいて、キャップ部材と軸部材とを強固に接着することができ、かつ、接着剤が軸部材の筒孔にはみ出すことが抑制できる。 By using the cap member of the present invention, the cap member and the shaft member can be firmly adhered to each other in the water purifier cartridge, and the adhesive agent can be prevented from protruding into the cylindrical hole of the shaft member.

浄水器用カートリッジの一例を示す断面図である。It is a sectional view showing an example of a cartridge for water purifiers. 図１の浄水器用カートリッジの分解斜視図である。FIG. 2 is an exploded perspective view of the water purifier cartridge of FIG. 1; 浄水カートリッジを内蔵した浄水器の一例を示す側面図である。FIG. 2 is a side view showing an example of a water purifier containing a water purifying cartridge; キャップ部材の一例を示す平面図である。FIG. 4 is a plan view showing an example of a cap member; 図４に示すキャップ部材の裏面図である。FIG. 5 is a back view of the cap member shown in FIG. 4; 図４の矢視Ａ－Ａ線断面図である。FIG. 5 is a cross-sectional view taken along line AA in FIG. 4; 図４の矢視Ｂ－Ｂ線の断面図である。FIG. 5 is a cross-sectional view taken along line BB in FIG. 4; 図４の矢視Ｃ－Ｃ線の断面図である。5 is a cross-sectional view taken along line CC of FIG. 4; FIG. 図４に示すキャップ部材の斜視図である。5 is a perspective view of the cap member shown in FIG. 4; FIG. 図４に示すキャップ部材に軸部材を接着剤を用いて固着した状態を示す断面模式図である。5 is a schematic cross-sectional view showing a state in which the shaft member is fixed to the cap member shown in FIG. 4 using an adhesive; FIG. キャップ部材の他の例を示す平面図である。FIG. 10 is a plan view showing another example of the cap member; 図１１に示すキャップ部材の裏面図である。FIG. 12 is a rear view of the cap member shown in FIG. 11; 図１１の矢視Ａ－Ａ線断面図である。FIG. 12 is a cross-sectional view taken along line AA of FIG. 11; 図１１の矢視Ｂ－Ｂ線の断面図である。FIG. 12 is a cross-sectional view taken along line BB of FIG. 11; 図１１に示すキャップ部材の斜視図である。12 is a perspective view of the cap member shown in FIG. 11; FIG. 図１１に示すキャップ部材に軸部材を接着剤を用いて固着した状態を示す断面模式図である。12 is a schematic cross-sectional view showing a state in which the shaft member is fixed to the cap member shown in FIG. 11 using an adhesive; FIG.

本発明のキャップ部材は、筒状の軸部材と、前記軸部材の外周面に形成された成形吸着体と、前記成形吸着体と当接する平面部と、前記軸部材の一方端が挿嵌され、前記軸部材の筒孔と連通する挿入孔とを有するキャップ部材とを有する浄水器用カートリッジに使用されるキャップ部材であって、前記キャップ部材の挿入孔は、前記軸部材が挿嵌される面側から順に、大径部と、前記大径部よりも内径が小さい小径部とを有し、前記大径部の内周面には、前記軸部材の外周面に当接する位置決め部材が設けられていることを特徴とする。 The cap member of the present invention includes a cylindrical shaft member, a shaped attracting body formed on the outer peripheral surface of the shaft member, a flat portion abutting on the shaped adsorbing body, and one end of the shaft member being inserted. and a cap member having an insertion hole communicating with the cylindrical hole of the shaft member, wherein the insertion hole of the cap member is a surface into which the shaft member is inserted. It has a large-diameter portion and a small-diameter portion having an inner diameter smaller than that of the large-diameter portion in order from the side, and a positioning member that contacts the outer peripheral surface of the shaft member is provided on the inner peripheral surface of the large-diameter portion. It is characterized by

キャップ部材の挿入孔が、大径部と小径部とから構成されているため、この挿入孔に軸部材を挿嵌すると、大径部では軸部材との隙間が大きく、小径部では軸部材との隙間が小さくなる。そのため、接着剤を用いてキャップ部材を軸部材に固着する際に、大径部では、キャップ部材と軸部材との隙間に接着剤が入り込むことができるが、小径部では、キャップ部材と軸部材との隙間に接着剤が入り込みにくくなる。よって、大径部を設けることで、キャップ部材と軸部材との接着面積が増加し、接着強度が向上する。また、小径部を設けることで、接着剤が挿入孔を通り抜けて軸部材の先端まで流れることが抑制され、接着剤が軸部材の筒孔内にはみ出すことが防止される。 Since the insertion hole of the cap member is composed of a large diameter portion and a small diameter portion, when the shaft member is inserted into the insertion hole, the gap between the shaft member and the shaft member is large at the large diameter portion, and the gap between the shaft member and the shaft member is large at the small diameter portion. gap becomes smaller. Therefore, when the cap member is fixed to the shaft member using an adhesive, the adhesive can enter the gap between the cap member and the shaft member in the large-diameter portion, but the gap between the cap member and the shaft member in the small-diameter portion is not sufficient. It becomes difficult for the adhesive to enter the gap between the Therefore, by providing the large-diameter portion, the bonding area between the cap member and the shaft member is increased, and the bonding strength is improved. Further, by providing the small diameter portion, the adhesive is suppressed from flowing through the insertion hole to the tip of the shaft member, and the adhesive is prevented from protruding into the cylindrical hole of the shaft member.

さらに、大径部の内周面に位置決め部材が設けられているため、軸部材の芯ずれが抑制され、軸部材外周と大径部内周との隙間が周方向で均一となる。そのため、軸部材の周方向にわたって均一に接着剤を付与することができ、接着強度がより向上する。 Furthermore, since the positioning member is provided on the inner peripheral surface of the large-diameter portion, misalignment of the shaft member is suppressed, and the gap between the outer periphery of the shaft member and the inner periphery of the large-diameter portion becomes uniform in the circumferential direction. Therefore, the adhesive can be applied uniformly over the circumferential direction of the shaft member, and the adhesive strength is further improved.

前記キャップ部材は、平面部と、この平面部に設けられた挿入孔とを有する。前記キャップ部材の挿入孔は、前記軸部材が挿嵌される面（以下、「上流側面」と称する場合がある。）側から順に、大径部と、前記大径部よりも内径が小さい小径部とを有する。前記平面部の平面視形状は特に限定されず、円形状、楕円形状、多角形状などが挙げられ、成形吸着体の断面形状に応じて適宜調整すればよい。また、挿入孔の平面視形状は特に限定されず、円形状、楕円形状、多角形状などが挙げられ、軸部材の断面形状に応じて適宜調整すればよい。 The cap member has a flat portion and an insertion hole provided in the flat portion. The insertion hole of the cap member has a large-diameter portion and a small-diameter portion having an inner diameter smaller than that of the large-diameter portion. and The plane view shape of the plane portion is not particularly limited, and may be a circular shape, an elliptical shape, a polygonal shape, or the like, and may be appropriately adjusted according to the cross-sectional shape of the shaped adsorbent. Further, the planar shape of the insertion hole is not particularly limited, and may be circular, elliptical, polygonal, or the like, and may be appropriately adjusted according to the cross-sectional shape of the shaft member.

前記大径部の内径（ｄ１）と、前記軸部材の外径（ｄ０）との比（ｄ１／ｄ０）は、１．０５以上が好ましく、より好ましくは１．１５以上、さらに好ましくは１．２以上であり、２以下が好ましく、より好ましくは１．７５以下、さらに好ましくは１．５以下である。比（ｄ１／ｄ０）が１．０５以上であれば隙間に接着剤が流れ込みやすくなり、接着剤の塗布量を増加させることで接着強度が一層向上し、２以下であれば軸部材挿入時に誘いとして機能する。 The ratio (d1/d0) between the inner diameter (d1) of the large diameter portion and the outer diameter (d0) of the shaft member is preferably 1.05 or more, more preferably 1.15 or more, and still more preferably 1.15. It is 2 or more, preferably 2 or less, more preferably 1.75 or less, and still more preferably 1.5 or less. If the ratio (d1/d0) is 1.05 or more, the adhesive will easily flow into the gap, and by increasing the amount of adhesive applied, the adhesive strength will be further improved. function as

前記軸部材の外径が５ｍｍ～２０ｍｍである場合、前記大径部の内径（ｄ１）と、前記軸部材の外径（ｄ０）との差（ｄ１－ｄ０）は、０．５ｍｍ以上が好ましく、より好ましくは１．０ｍｍ以上、さらに好ましくは２ｍｍ以上であり、４ｍｍ以下が好ましく、より好ましくは３．５ｍｍ以下、さらに好ましくは３ｍｍ以下である。差（ｄ１－ｄ０）が０．５ｍｍ以上であれば隙間に接着剤が流れ込みやすくなり、接着剤の塗布量を増加させることで接着強度が一層向上し、４ｍｍ以下であれば軸部材挿入時に誘いとして機能する。 When the outer diameter of the shaft member is 5 mm to 20 mm, the difference (d1-d0) between the inner diameter (d1) of the large diameter portion and the outer diameter (d0) of the shaft member is preferably 0.5 mm or more. , more preferably 1.0 mm or more, more preferably 2 mm or more, and preferably 4 mm or less, more preferably 3.5 mm or less, still more preferably 3 mm or less. If the difference (d1-d0) is 0.5 mm or more, the adhesive will easily flow into the gap, and by increasing the amount of adhesive applied, the adhesive strength will be further improved. function as

前記小径部の内径（ｄ２）と、前記軸部材の外径（ｄ０）との比（ｄ２／ｄ０）は、１．００２以上が好ましく、より好ましくは１．００５以上、さらに好ましくは１．０１以上であり、１．０５以下が好ましく、より好ましくは１．０３以下、さらに好ましくは１．０２以下である。比（ｄ２／ｄ０）が１．００２以上であれば干渉による組立不良がおこらず、組立の作業性がより向上し、１．０５以下であれば小径部と軸部材との隙間への接着剤の流入がより抑制される。 The ratio (d2/d0) between the inner diameter (d2) of the small diameter portion and the outer diameter (d0) of the shaft member is preferably 1.002 or more, more preferably 1.005 or more, and still more preferably 1.01. 1.05 or less is preferable, 1.03 or less is more preferable, and 1.02 or less is still more preferable. If the ratio (d2/d0) is 1.002 or more, assembly failure due to interference does not occur, and assembly workability is further improved. inflow is more suppressed.

前記軸部材の外径が５ｍｍ～２０ｍｍである場合、前記小径部の内径（ｄ２）と、前記軸部材の外径（ｄ０）との差（ｄ２－ｄ０）は、０．０５ｍｍ以上が好ましく、より好ましくは０．０８ｍｍ以上、さらに好ましくは０．１ｍｍ以上であり、１ｍｍ以下が好ましく、より好ましくは０．５ｍｍ以下、さらに好ましくは０．２ｍｍ以下である。差（ｄ２－ｄ０）が０．０５ｍｍ以上であれば干渉による組立不良がおこらず、組立の作業性がより向上し、１ｍｍ以下であれば小径部と軸部材との隙間への接着剤の流入がより抑制される。 When the outer diameter of the shaft member is 5 mm to 20 mm, the difference (d2-d0) between the inner diameter (d2) of the small diameter portion and the outer diameter (d0) of the shaft member is preferably 0.05 mm or more, It is more preferably 0.08 mm or more, still more preferably 0.1 mm or more, preferably 1 mm or less, more preferably 0.5 mm or less, still more preferably 0.2 mm or less. If the difference (d2-d0) is 0.05 mm or more, assembly failure due to interference will not occur, and assembly workability will be further improved. is more suppressed.

前記軸部材の長さが５０ｍｍ～２００ｍｍである場合、前記大径部の厚さ（Ｔ１）は、０．５ｍｍ以上が好ましく、より好ましくは０．７５ｍｍ以上、さらに好ましくは１ｍｍ以上であり、５ｍｍ以下が好ましく、より好ましくは３ｍｍ以下、さらに好ましくは２ｍｍ以下である。厚さ（Ｔ１）が０．５ｍｍ以上であれば接着剤と軸部材との接着面積が増え接着強度がより向上し、５ｍｍ以下であれば軸部材挿入時に誘いとして機能する。 When the length of the shaft member is 50 mm to 200 mm, the thickness (T1) of the large diameter portion is preferably 0.5 mm or more, more preferably 0.75 mm or more, still more preferably 1 mm or more, and 5 mm The following is preferable, more preferably 3 mm or less, and still more preferably 2 mm or less. If the thickness (T1) is 0.5 mm or more, the bonding area between the adhesive and the shaft member increases and the bonding strength is further improved.

前記軸部材の長さが５０ｍｍ～２００ｍｍである場合、前記小径部の厚さ（Ｔ２）は、０．５ｍｍ以上が好ましく、より好ましくは０．７５ｍｍ以上、さらに好ましくは１ｍｍ以上であり、５ｍｍ以下が好ましく、より好ましくは２．５ｍｍ以下、さらに好ましくは２ｍｍ以下である。厚さ（Ｔ２）が０．５ｍｍ以上であれば軸部材の差さり込みにより強度が一層向上する。 When the length of the shaft member is 50 mm to 200 mm, the thickness (T2) of the small diameter portion is preferably 0.5 mm or more, more preferably 0.75 mm or more, still more preferably 1 mm or more, and 5 mm or less. is preferable, more preferably 2.5 mm or less, and still more preferably 2 mm or less. If the thickness (T2) is 0.5 mm or more, the insertion of the shaft member further improves the strength.

前記大径部の厚さ（Ｔ１）と前記小径部の厚さ（Ｔ２）との比（Ｔ１／Ｔ２）は、０．５以上が好ましく、より好ましくは１以上、さらに好ましくは１．５以上であり、５以下が好ましく、より好ましくは３以下、さらに好ましくは２以下である。比（Ｔ１／Ｔ２）が０．５以上であれば接着剤と軸部材との接着面積が増えることで接着強度がより向上し、２以下であれば軸部材挿入時に誘いとして機能する。 The ratio (T1/T2) between the thickness (T1) of the large diameter portion and the thickness (T2) of the small diameter portion is preferably 0.5 or more, more preferably 1 or more, and still more preferably 1.5 or more. and is preferably 5 or less, more preferably 3 or less, and still more preferably 2 or less. If the ratio (T1/T2) is 0.5 or more, the adhesion area between the adhesive and the shaft member increases, thereby improving the adhesive strength.

前記大径部の内周面には、前記軸部材の外周面に当接する位置決め部材が設けられている。大径部の内周面に位置決め部材が設けられているため、軸部材の芯ずれが抑制され、軸部材外周と大径部内周との隙間が均一となる。そのため、軸部材の周方向にわたって均一に接着剤が付与され、接着強度がより向上する。 The inner peripheral surface of the large diameter portion is provided with a positioning member that abuts on the outer peripheral surface of the shaft member. Since the positioning member is provided on the inner peripheral surface of the large-diameter portion, misalignment of the shaft member is suppressed, and the gap between the outer periphery of the shaft member and the inner periphery of the large-diameter portion becomes uniform. Therefore, the adhesive is applied uniformly over the circumferential direction of the shaft member, and the adhesive strength is further improved.

前記位置決め部材は、１つの挿入孔につき３個以上設けられていることが好ましく、より好ましくは４個以上である。１つの挿入孔当たり前記位置決め部材を３個以上設けることで、軸部材の芯ずれをより確実に抑制できる。なお、１つの挿入孔３当たりの位置決め部材の個数の上限は特に限定されないが、多すぎると接着剤の流入する空間が減少してしまうため、１０個以下が好ましく、６個以下がより好ましい。 Preferably, three or more positioning members are provided per insertion hole, and more preferably four or more. By providing three or more positioning members for each insertion hole, misalignment of the shaft member can be more reliably suppressed. The upper limit of the number of positioning members per insertion hole 3 is not particularly limited, but if the number is too large, the space into which the adhesive flows is reduced.

前記大径部の内周における位置決め部材が設けられている部分の割合は、１０％以上が好ましく、より好ましくは２０％以上であり、５０％以下が好ましく、より好ましくは４０％以下である。前記割合が１０％以上であれば軸部材の挿入性がより良好となり、５０％以下であれば大径部への接着剤の流入量が良好となる。 The ratio of the portion provided with the positioning member to the inner circumference of the large diameter portion is preferably 10% or more, more preferably 20% or more, and preferably 50% or less, more preferably 40% or less. When the ratio is 10% or more, the insertability of the shaft member is improved, and when the ratio is 50% or less, the amount of adhesive flowing into the large-diameter portion is improved.

前記キャップ部材の挿入孔は、前記大径部の端縁に、テーパ状の誘い込み面が設けられていることが好ましい。大径部の端縁に誘い込み面を形成することで、挿入孔に軸部材を容易に挿入でき、また、接着剤が大径部と軸部材との隙間に流れ込みやすくなる。また、同様に、位置決め部材の内周面は、上流面側の端部に、テーパ状の誘い込み面が設けられていることが好ましい。位置決め部材の上流面側の端部に誘い込み面を設けることで、位置決め部材の内方に、軸部材を容易に挿入できる。 It is preferable that the insertion hole of the cap member is provided with a tapered guiding surface at the edge of the large diameter portion. By forming a guiding surface on the edge of the large diameter portion, the shaft member can be easily inserted into the insertion hole, and the adhesive can easily flow into the gap between the large diameter portion and the shaft member. Similarly, it is preferable that the inner peripheral surface of the positioning member is provided with a tapered guiding surface at the end on the upstream surface side. By providing the guiding surface at the upstream end of the positioning member, the shaft member can be easily inserted into the positioning member.

前記大径部の誘い込み面の勾配は特に限定されないが、誘い込み面（斜面）と、大径部の内壁とのなす角度が、５°以上が好ましく、より好ましくは１０°以上、さらに好ましくは３０°以上であり、６０°以下が好ましく、より好ましくは４５°以下、さらに好ましくは４０°以下である。誘い込み面の勾配が５°以上であれば接着剤が大径部と軸部材との隙間により流れ込みやすくなり、６０°以下であれば面が誘いとして働き軸部材を容易に挿入しやすくなる。なお、誘い込み面は大径部の一部とみなし、大径部の厚さに誘い込み面が形成された部分の厚さも含めるものとする。 The inclination of the guiding surface of the large diameter portion is not particularly limited, but the angle formed by the guiding surface (slope) and the inner wall of the large diameter portion is preferably 5° or more, more preferably 10° or more, and still more preferably 30°. ° or more, preferably 60° or less, more preferably 45° or less, and still more preferably 40° or less. If the inclination of the guide surface is 5° or more, the adhesive will easily flow into the gap between the large-diameter portion and the shaft member, and if it is 60° or less, the surface will act as a guide to facilitate the insertion of the shaft member. The guiding surface is regarded as part of the large-diameter portion, and the thickness of the portion where the guiding surface is formed is included in the thickness of the large-diameter portion.

前記挿入孔の軸部材が挿入される側と反対側には、軸部材の先端が当接する当接部が設けられていることが好ましい。前記当接部を設けることで、軸部材を挿入する際に、軸部材の挿入量を容易に調節することができ、軸方向の位置決めが容易となる。なお、当接部は、平面部の上流側面の反対側（以下、「下流側面」と称する場合がある。）に挿入孔の内方に延出する当接部を設けてもよいし、例えば、挿入孔の小径部の下流側に、軸部材の外径よりも内径が小さい部分を設け、この部分を当接部としてもよい。 It is preferable that an abutment portion with which the tip of the shaft member abuts is provided on the side of the insertion hole opposite to the side where the shaft member is inserted. By providing the contact portion, when inserting the shaft member, it is possible to easily adjust the amount of insertion of the shaft member, thereby facilitating positioning in the axial direction. In addition, the contact portion may be provided with a contact portion extending inward of the insertion hole on the side opposite to the upstream side surface of the flat portion (hereinafter sometimes referred to as "downstream side surface"). Alternatively, a portion having an inner diameter smaller than the outer diameter of the shaft member may be provided on the downstream side of the small diameter portion of the insertion hole, and this portion may be used as the contact portion.

前記キャップ部材は、前記平面部の前記成形吸着体と対向する面（上流側面）に、前記挿入孔の周囲に凸条が形成されていることが好ましい。凸条を形成することで、接着剤が平面部に沿って広がった際に、凸条によって堰止められる。これにより、接着剤の塗布量を増やした場合でも、接着剤が平面部に沿って過度に広がり、接着剤が浄水器用カートリッジの外面にはみ出ることが抑制される。 It is preferable that the cap member has a ridge formed around the insertion hole on a surface (upstream side surface) of the planar portion facing the shaped adsorbent. By forming the ridges, when the adhesive spreads along the flat portion, it is dammed by the ridges. As a result, even when the amount of adhesive applied is increased, it is suppressed that the adhesive spreads excessively along the flat portion and the adhesive protrudes to the outer surface of the water purifier cartridge.

前記凸条の高さは、０．３ｍｍ以上が好ましく、より好ましくは０．５ｍｍ以上、さらに好ましくは１ｍｍ以上であり、５ｍｍ以下が好ましく、より好ましくは１．７５ｍｍ以下、さらに好ましくは１．５ｍｍ以下である。前記凸条の高さが、０．３ｍｍ以上であれば接着剤を堰止め平面部へ過度な広がりを防ぐことができ、塗布が均一になる。 The height of the ridge is preferably 0.3 mm or more, more preferably 0.5 mm or more, still more preferably 1 mm or more, and preferably 5 mm or less, more preferably 1.75 mm or less, still more preferably 1.5 mm. It is below. If the height of the ridges is 0.3 mm or more, the adhesive can be prevented from spreading excessively on the damming flat portion, and the application can be uniform.

前記凸条の断面形状は特に限定されず、半円形状、半楕円形状、多角形状などが挙げられる。前記凸条は、挿入孔の周囲の少なくとも一部に形成されていればよく、挿入孔の周囲の全体に形成してもよい。前記凸条を形成する領域は、キャップ部材の形状に応じて適宜調節すればよい。 The cross-sectional shape of the ridges is not particularly limited, and examples thereof include a semicircular shape, a semielliptical shape, and a polygonal shape. The ridge may be formed at least partly around the insertion hole, and may be formed entirely around the insertion hole. The region where the ridges are formed may be appropriately adjusted according to the shape of the cap member.

また、前記キャップ部材は、前記平面部の前記成形吸着体と対向する面に、前記挿入孔の周囲に溝が形成されていることが好ましい。溝を形成することで、接着剤の塗布量を増加させることができ、接着強度をより高めることができる。また、浄水器用カートリッジを組み立てる際に、挿入孔に対して溝よりも外側に接着剤と塗布することで、軸部材を挿入する前に、接着剤が挿入孔内に流れ込むことが防止される。 Further, it is preferable that the cap member has a groove formed around the insertion hole on a surface of the flat portion facing the shaped adsorbent. By forming the grooves, it is possible to increase the amount of adhesive to be applied and to further increase the bonding strength. Further, when the water purifier cartridge is assembled, the adhesive is applied to the insertion hole outside the groove, thereby preventing the adhesive from flowing into the insertion hole before the shaft member is inserted.

前記溝の深さは、０．３ｍｍ以上が好ましく、より好ましくは０．５ｍｍ以上、さらに好ましくは１ｍｍ以上であり、５ｍｍ以下が好ましく、より好ましくは２ｍｍ以下、さらに好ましくは１．５ｍｍ以下である。前記溝の深さが０．３ｍｍ以上であれば接着剤が溝に流れ込むことで挿入孔に到達する時機を遅らせることができ、接着剤が軸部材より先に挿入孔内に流れ込むのを防ぐことができる、５ｍｍ以下であればキャップ部材の厚みを過剰に厚く設定することなくコンパクトな形状になる。 The depth of the groove is preferably 0.3 mm or more, more preferably 0.5 mm or more, still more preferably 1 mm or more, and preferably 5 mm or less, more preferably 2 mm or less, and still more preferably 1.5 mm or less. . If the depth of the groove is 0.3 mm or more, the timing of reaching the insertion hole can be delayed by the adhesive flowing into the groove, thereby preventing the adhesive from flowing into the insertion hole earlier than the shaft member. If the thickness is 5 mm or less, a compact shape can be obtained without setting the thickness of the cap member excessively thick.

前記溝の断面形状は特に限定されず、半円形状、半楕円形状、多角形状などが挙げられる。前記溝は、挿入孔の周囲の少なくとも一部に形成されていればよく、挿入孔の周囲の全体に形成してもよい。前記溝を形成する領域は、キャップ部材の形状に応じて適宜調節すればよい。 The cross-sectional shape of the groove is not particularly limited, and examples thereof include a semicircular shape, a semielliptical shape, and a polygonal shape. The groove may be formed at least partly around the insertion hole, and may be formed entirely around the insertion hole. The region in which the groove is formed may be appropriately adjusted according to the shape of the cap member.

前記キャップ部材は、上流側面の周縁部に土手部が形成されていてもよい。この土手部の内周は、軸部材の外周面に形成された成形吸着体の外周面よりも大きく形成することが好ましい。このように構成することで、キャップ部材の挿入孔に軸部材を挿嵌すると、土手部が成形吸着体の端部の周囲を覆うようになる。これにより、キャップ部材と成形吸着体との間に塗布された接着剤が、浄水器用カートリッジの外面にはみ出ることが抑制される。 The cap member may have a bank portion formed on the peripheral edge portion of the upstream side surface. It is preferable that the inner circumference of the bank portion is formed larger than the outer circumference of the shaped adsorbent formed on the outer circumference of the shaft member. With this configuration, when the shaft member is inserted into the insertion hole of the cap member, the bank portion covers the end portion of the shaped adsorbent. This suppresses the adhesive applied between the cap member and the shaped adsorbent from protruding to the outer surface of the water purifier cartridge.

以下、図面を参照して、本発明の浄水器用カートリッジに使用されるキャップ部材について説明する。まず、本発明のキャップ部材が適用される浄水器用カートリッジや浄水器の一例を説明する。図１は、浄水器用カートリッジの一例を示す断面図である。図２は、図１の浄水器用カートリッジの分解斜視図である。図３は、浄水器の好ましい態様を示す側面図である。なお、本発明のキャップ部材が適用できる浄水器用カートリッジ、浄水器は、図１～３に記載された態様に限定されるものではない。 Hereinafter, the cap member used in the water purifier cartridge of the present invention will be described with reference to the drawings. First, examples of water purifier cartridges and water purifiers to which the cap member of the present invention is applied will be described. FIG. 1 is a cross-sectional view showing an example of a water purifier cartridge. 2 is an exploded perspective view of the water purifier cartridge of FIG. 1. FIG. FIG. 3 is a side view showing a preferred embodiment of the water purifier. The water purifier cartridge and water purifier to which the cap member of the present invention can be applied are not limited to the embodiments shown in FIGS.

（浄水器用カートリッジ）
図１、２の浄水器用カートリッジ２０は、筒状の軸部材２１と、この軸部材２１の外表面に積層された成形吸着体２２と、前記軸部材２１の一方の端部に取り付けられたキャップ部材１と、前記軸部材２１の他方の端部に取り付けられたカバー部材２３とを有する。前記キャップ部材１には、接続部材２４が接続されている。なお、前記キャップ部材１およびカバー部材２３は、接着剤（図示しない）を用いて軸部材２１および成形吸着体２２に固着されている。 (Cartridge for water purifier)
The water purifier cartridge 20 shown in FIGS. 1 and 2 includes a cylindrical shaft member 21, a shaped adsorbent 22 laminated on the outer surface of the shaft member 21, and a cap attached to one end of the shaft member 21. It has a member 1 and a cover member 23 attached to the other end of the shaft member 21 . A connection member 24 is connected to the cap member 1 . Incidentally, the cap member 1 and the cover member 23 are fixed to the shaft member 21 and the shaped adsorbent 22 using an adhesive (not shown).

前記軸部材２１は、円筒状であり、複数の貫通孔２１ａが形成されている。この貫通孔２１ａを通じて、水が筒外から筒内に流入できる。軸部材２１の外表面には、不織布２５が巻き付けられている。この不織布２５によって、成形吸着体２２が軸部材２１の筒内に入り込むことが防止される。また、前記成形吸着体２２の周囲には、成形吸着体２２を保護する不織布２６が巻き付けられている。なお、前記軸部材２１の断面形状は円形に限定されず、楕円形状、多角形状などが挙げられる。前記貫通孔２１ａの平面視形状は特に限定されず、多角形状、円形状、楕円形状などが挙げられる。軸部材２１の本数は２本に限られず、軸部材２１の本数は１本でもよいし、３本以上でもよい。 The shaft member 21 has a cylindrical shape and is formed with a plurality of through holes 21a. Water can flow into the cylinder from the outside of the cylinder through the through hole 21a. A nonwoven fabric 25 is wound around the outer surface of the shaft member 21 . The nonwoven fabric 25 prevents the shaped adsorbent 22 from entering the cylinder of the shaft member 21 . A nonwoven fabric 26 for protecting the shaped adsorbent 22 is wrapped around the shaped adsorbent 22 . In addition, the cross-sectional shape of the shaft member 21 is not limited to a circular shape, and may be an elliptical shape, a polygonal shape, or the like. The planar view shape of the through-hole 21a is not particularly limited, and examples thereof include a polygonal shape, a circular shape, an elliptical shape, and the like. The number of shaft members 21 is not limited to two, and the number of shaft members 21 may be one or three or more.

前記浄水器用カートリッジ２０は、成形吸着体２２の外側を原水流路とする。原水は成形吸着体２２を通過し、軸部材２１の内部に流入する。この際、成形吸着体２２に含まれる吸着材（図示せず）により浄化され、浄水となる。 The water purifier cartridge 20 uses the outside of the shaped adsorbent 22 as a raw water channel. Raw water passes through the shaped adsorbent 22 and flows into the shaft member 21 . At this time, the water is purified by an adsorbent (not shown) contained in the shaped adsorbent 22 to become purified water.

カバー部材２３は、平面部２３ａとこの平面部に設けられた凸部２３ｂとを有している。そして、前記凸部２３ｂが軸部材２１の筒内に挿嵌され、軸部材２１の筒孔の一方端を閉塞している。また、前記平面部２３ａは、成形吸着体２２に当接し、成形吸着体２２の一方の側面を閉鎖している。このカバー部材２３によって、軸部材２１の筒内に流入した浄水が、カバー部材２３側から漏れ出すことが防止されている。 The cover member 23 has a flat portion 23a and a convex portion 23b provided on the flat portion. The projection 23b is fitted into the cylinder of the shaft member 21 to close one end of the cylinder hole of the shaft member 21. As shown in FIG. The planar portion 23a abuts on the shaped adsorbent 22 and closes one side surface of the shaped adsorbent 22. As shown in FIG. The cover member 23 prevents the purified water that has flowed into the cylinder of the shaft member 21 from leaking out from the cover member 23 side.

キャップ部材１は、平面部２とこの平面部２に設けられた挿入孔３とを有している。そして、前記軸部材２１の端部が挿入孔３に挿嵌され、筒孔と挿入孔３が連通している。また、平面部２は、成形吸着体２２に当接し、成形吸着体２２の側面を閉鎖している。軸部材２１の筒内に流入した浄水は、キャップ部材１の挿入孔３を通じて、キャップ部材１の下流（接続部材２４が接続されている側）へ吐出される。なお、平面部２によって、原水がキャップ部材１の下流側に流入することが防止されている。 The cap member 1 has a flat portion 2 and an insertion hole 3 provided in the flat portion 2 . An end portion of the shaft member 21 is inserted into the insertion hole 3, and the cylindrical hole and the insertion hole 3 are communicated with each other. The flat portion 2 abuts on the shaped adsorbent 22 and closes the side surface of the shaped adsorbent 22 . Purified water that has flowed into the cylinder of the shaft member 21 is discharged downstream of the cap member 1 (the side to which the connecting member 24 is connected) through the insertion hole 3 of the cap member 1 . The flat portion 2 prevents raw water from flowing into the downstream side of the cap member 1 .

キャップ部材１には接続部材２４が接続されている。この接続部材２４は、浄水器本体に接続可能に形成されている。キャップ部材１と接続部材２４とによって形成される空隙には、成形吸着体２２から流出する微粉等を取り除くための中空糸や、滞留水に菌が繁殖することを防止する殺菌セラミックボール等を配置してもよい。 A connection member 24 is connected to the cap member 1 . This connection member 24 is formed so as to be connectable to the water purifier main body. In the gap formed by the cap member 1 and the connecting member 24, hollow fibers for removing fine powder flowing out from the shaped adsorbent 22, sterilizing ceramic balls for preventing bacteria from growing in the stagnant water, etc. are arranged. You may

図１、２に記載した浄水器用カートリッジ２０では、軸部材２１の一方の端部にキャップ部材１、他方の端部にカバー部材２３が取り付けられているが、軸部材２１の両方の端部にキャップ部材１を取り付けてもよい。また、図１、２に記載した浄水器用カートリッジ２０では、キャップ部材１と接続部材２４とが別部材となっているが、キャップ部材１と接続部材２４とを一体に成形してもよい。つまり、キャップ部材１を浄水器本体に接続可能に形成してもよい。 In the water purifier cartridge 20 shown in FIGS. 1 and 2, the cap member 1 is attached to one end of the shaft member 21, and the cover member 23 is attached to the other end. A cap member 1 may be attached. In addition, in the water purifier cartridge 20 shown in FIGS. 1 and 2, the cap member 1 and the connecting member 24 are separate members, but the cap member 1 and the connecting member 24 may be molded integrally. That is, the cap member 1 may be formed so as to be connectable to the water purifier main body.

（浄水器）
前記浄水器用カートリッジが使用される浄水器は、浄水器用カートリッジを用いたものであれば特に限定されない。浄水器としては、例えば、水道の蛇口の先端に直接取り付ける蛇口直結型；蛇口または蛇口に設けた分岐水栓からホースまたは配管などで接続して、蛇口近傍に設置する据え置き型；蛇口に浄水カートリッジが組み込まれた蛇口一体型（水栓一体型）；シンクの下に設置するアンダーシンク型などが挙げられる。 (water purifier)
The water purifier in which the water purifier cartridge is used is not particularly limited as long as it uses the water purifier cartridge. As a water purifier, for example, a faucet direct connection type that is directly attached to the tip of a water faucet; a stationary type that is connected to a faucet or a branch faucet provided on the faucet with a hose or pipe, etc. and installed near the faucet; a water purification cartridge on the faucet faucet integrated type (water faucet integrated type); and under sink type installed under the sink.

図３に浄水器の一例を示す。浄水器３０は、蛇口内部に浄水器用カートリッジ２０が交換可能に内蔵された水栓一体型浄水器である。浄水器３０は、分離可能な頭部３１と胴部３２とを有する。頭部３１と胴部３２とを分離して、浄水器３０の内部に浄水器用カートリッジ２０を装着する。 FIG. 3 shows an example of a water purifier. The water purifier 30 is a faucet-integrated water purifier in which the water purifier cartridge 20 is replaceably built in the faucet. The water purifier 30 has a separable head 31 and body 32 . The head 31 and the body 32 are separated, and the water purifier cartridge 20 is mounted inside the water purifier 30.例文帳に追加

（キャップ部材）
以下、キャップ部材１を詳細に説明する。なお、以下では、本発明のキャップ部材を好ましい実施態様に基づいて説明するが、本発明は下記の実施態様に限定されるものではなく、本発明の趣旨を逸脱しない範囲で、各実施態様の形状、構成、配置などを適宜変更することができる。 (cap member)
The cap member 1 will be described in detail below. In the following, the cap member of the present invention will be described based on preferred embodiments, but the present invention is not limited to the following embodiments, and each embodiment can be applied without departing from the scope of the present invention. The shape, configuration, arrangement, etc. can be changed as appropriate.

（第１実施態様）
図４～９に第１実施態様のキャップ部材を示した。図４は、第１実施態様のキャップ部材の平面図である。図５は、図４に示すキャップ部材の裏面図である。図６は、図４の矢視Ａ－Ａ線断面図である。図７は、図４の矢視Ｂ－Ｂ線の断面図である。図８は、図４の矢視Ｃ－Ｃ線の断面図である。図９は、図４に示すキャップ部材の斜視図である。図１０は、図４に示すキャップ部材に軸部材を接着剤を用いて固着した状態を示す断面模式図である。 (First embodiment)
Figures 4-9 show the cap member of the first embodiment. 4 is a plan view of the cap member of the first embodiment. FIG. 5 is a back view of the cap member shown in FIG. 4. FIG. 6 is a cross-sectional view taken along line AA in FIG. 4. FIG. 7 is a cross-sectional view taken along line BB in FIG. 4. FIG. 8 is a cross-sectional view taken along line CC of FIG. 4. FIG. 9 is a perspective view of the cap member shown in FIG. 4. FIG. 10 is a schematic cross-sectional view showing a state in which the shaft member is fixed to the cap member shown in FIG. 4 using an adhesive. FIG.

第１実施態様のキャップ部材１は、平面部２と、この平面部２に設けられた挿入孔３とを有する。前記キャップ部材１の挿入孔３は、前記軸部材２１が挿嵌される面側から順に、大径部３ａと、前記大径部よりも内径が小さい小径部３ｂとを有する。図４～９では、前記平面部２の平面視形状が楕円形状であるが、平面部２の平面視形状は円形状、多角形状であってもよい。また、図４～９では、挿入孔３の形状は円形であるが、軸部材の形状に応じて、楕円形状、多角形状としてもよい。 A cap member 1 of the first embodiment has a flat portion 2 and an insertion hole 3 provided in the flat portion 2 . The insertion hole 3 of the cap member 1 has a large-diameter portion 3a and a small-diameter portion 3b having an inner diameter smaller than that of the large-diameter portion, in order from the side where the shaft member 21 is inserted. In FIGS. 4 to 9, the planar portion 2 has an oval shape in plan view, but the planar portion 2 may have a circular or polygonal shape in plan view. Moreover, although the shape of the insertion hole 3 is circular in FIGS. 4 to 9, it may be elliptical or polygonal depending on the shape of the shaft member.

図１０に示すように、キャップ部材１の挿入孔３が、大径部３ａと小径部３ｂとから構成されているため、この挿入孔３に軸部材２１を挿嵌すると、大径部３ａでは軸部材２１との隙間が大きく、小径部３ｂでは軸部材２１との隙間が小さくなる。そのため、接着剤を用いてキャップ部材１を軸部材２１に固着する際に、接着剤４０が大径部３ａに入り込むことができ、接着面積が増加し、接着強度が向上する。また、小径部３ｂでは接着剤４０が入り込みにくくなるため、接着剤４０が挿入孔３を通じて下流側面へ流出し、軸部材２１の筒内にはみ出すことが防止される。 As shown in FIG. 10, the insertion hole 3 of the cap member 1 is composed of a large-diameter portion 3a and a small-diameter portion 3b. The gap with the shaft member 21 is large, and the gap with the shaft member 21 is small at the small diameter portion 3b. Therefore, when the cap member 1 is fixed to the shaft member 21 using an adhesive, the adhesive 40 can enter the large-diameter portion 3a, increasing the bonding area and improving the bonding strength. In addition, since the adhesive 40 is less likely to enter the small diameter portion 3 b , the adhesive 40 is prevented from flowing out through the insertion hole 3 to the downstream side surface and protruding into the cylinder of the shaft member 21 .

前記大径部３ａの内周面には、前記軸部材２１の外周面に当接する位置決め部材４が設けられている。前記位置決め部材４は、１つの挿入孔３につき４個設けられている。また、大径部３ａの内周における位置決め部材４が設けられている部分の割合は、３５％である。 A positioning member 4 that contacts the outer peripheral surface of the shaft member 21 is provided on the inner peripheral surface of the large diameter portion 3a. Four positioning members 4 are provided for each insertion hole 3 . Further, the ratio of the portion where the positioning member 4 is provided to the inner circumference of the large diameter portion 3a is 35%.

前記キャップ部材１の挿入孔３は、前記大径部３ａの端縁に、テーパ状の誘い込み面５が設けられている。また、同様に、位置決め部材４の内周面は、上流面側の端部に、テーパ状の誘い込み面４ａが設けられている。 The insertion hole 3 of the cap member 1 is provided with a tapered guiding surface 5 at the edge of the large diameter portion 3a. Similarly, the inner peripheral surface of the positioning member 4 is provided with a tapered guide surface 4a at the end on the upstream surface side.

前記挿入孔３の軸部材２１が挿入される側と反対側には、軸部材２１の先端が当接する当接部６が２個設けられている。なお、図４～９では、平面部２の上流側面の反対側に当接部６を設けているが、例えば、挿入孔３の小径部３ｂの下流側に、軸部材の外径よりも内径が小さい部分を設け、この部分を当接部としてもよい。 Two abutment portions 6 with which the tip of the shaft member 21 abuts are provided on the side of the insertion hole 3 opposite to the side where the shaft member 21 is inserted. 4 to 9, the contact portion 6 is provided on the opposite side of the upstream side surface of the flat portion 2. For example, the inner diameter is larger than the outer diameter of the shaft member on the downstream side of the small diameter portion 3b of the insertion hole 3. A small portion may be provided, and this portion may be used as the contact portion.

前記キャップ部材１は、上流側面の周縁部に土手部７が形成されている。この土手部７の外周は、軸部材２１の外周面に形成された成形吸着体２２の外周面よりも大きく形成されている。 The cap member 1 has a bank portion 7 formed on the peripheral edge portion of the upstream side surface. The outer periphery of the bank portion 7 is formed larger than the outer peripheral surface of the shaped adsorbent 22 formed on the outer peripheral surface of the shaft member 21 .

前記キャップ部材１は、下流側面の周縁部に壁部８が形成されている。壁部８は、前記接合部材２４と接合できるように形成されている。なお、壁部８は、接合部材２４の形状に応じて形成されるものであり、省略することも可能である。 The cap member 1 has a wall portion 8 formed on the peripheral portion of the downstream side. The wall portion 8 is formed so as to be able to be joined with the joining member 24 . The wall portion 8 is formed according to the shape of the joint member 24, and can be omitted.

（第２実施態様）
図１１～１５に第２実施態様のキャップ部材を示した。図１１は、第２実施態様のキャップ部材の平面図である。図１２は、図１１に示すキャップ部材の裏面図である。図１３は、図１１の矢視Ａ－Ａ線断面図である。図１４は、図１１の矢視Ｂ－Ｂ線の断面図である。図１５は、図１１に示すキャップ部材の斜視図である。図１６は、図１１に示すキャップ部材に軸部材を挿嵌した状態を示す断面模式図である。なお、第２実施態様のキャップ部材については、前記第１実施態様と同様である部分については、第１実施態様と同じ符号を付し、説明を省略する。 (Second embodiment)
A second embodiment of the cap member is shown in FIGS. 11-15. FIG. 11 is a plan view of the cap member of the second embodiment. 12 is a back view of the cap member shown in FIG. 11. FIG. 13 is a cross-sectional view taken along line AA of FIG. 11. FIG. 14 is a cross-sectional view taken along line BB in FIG. 11. FIG. 15 is a perspective view of the cap member shown in FIG. 11. FIG. 16 is a schematic cross-sectional view showing a state in which the shaft member is fitted into the cap member shown in FIG. 11. FIG. In addition, regarding the cap member of the second embodiment, the same reference numerals as those of the first embodiment are attached to the same parts as those of the first embodiment, and the description thereof is omitted.

第２実施態様のキャップ部材１は、前記平面部２の前記成形吸着体と対向する面（上流側面）に、前記挿入孔３の周囲に凸条９が形成されている。さらに、第２実施態様のキャップ部材１は、前記平面部２の前記成形吸着体と対向する面に、前記挿入孔３の周囲に溝１０が形成されている。図１６に示すように、凸条９を形成することで、接着剤４０が平面部２に沿って広がった際に、凸条９によって堰止められる。これにより、接着剤４０の塗布量を増やした場合でも、接着剤４０が平面部２に沿って過度に広がり、接着剤４０が浄水器用カートリッジ２０の外面にはみ出ることが抑制される。 In the cap member 1 of the second embodiment, a ridge 9 is formed around the insertion hole 3 on the surface (upstream side surface) of the flat portion 2 facing the shaped adsorbent. Further, in the cap member 1 of the second embodiment, a groove 10 is formed around the insertion hole 3 on the surface of the flat portion 2 facing the shaped adsorbent. As shown in FIG. 16 , by forming the ridges 9 , when the adhesive 40 spreads along the plane portion 2 , the ridges 9 dam it up. This prevents the adhesive 40 from excessively spreading along the flat portion 2 and protruding to the outer surface of the water purifier cartridge 20 even when the application amount of the adhesive 40 is increased.

前記凸条９は、平面部２において、各挿入孔３の外方側に設けられている。図１１では、挿入孔３が２個存在するため、凸条９は各挿入孔３の外方側に設けられている。これは、挿入孔３間の接着剤は平面部２の内方側へと広がって行くため、浄水器カートリッジ２０の外面にはみ出しにくいためである。なお、凸条９は、挿入孔３の周囲の少なくとも一部に形成されていればよく、前記凸条９を形成する領域は、キャップ部材１の形状に応じて適宜調節すればよい。 The protrusion 9 is provided on the outer side of each insertion hole 3 in the flat portion 2 . Since there are two insertion holes 3 in FIG. This is because the adhesive between the insertion holes 3 spreads toward the inner side of the flat portion 2 and is less likely to protrude to the outer surface of the water purifier cartridge 20 . The ridges 9 may be formed at least partly around the insertion hole 3 , and the region where the ridges 9 are formed may be appropriately adjusted according to the shape of the cap member 1 .

前記溝１０は、各挿入孔３の周囲の全体に形成されている。前記溝１０は、各挿入孔３の周囲の少なくとも一部に形成されていればよい。前記溝１０を形成する領域は、キャップ部材１の形状に応じて適宜調節すればよい。 The groove 10 is formed entirely around each insertion hole 3 . The groove 10 may be formed at least partly around each insertion hole 3 . The region in which the groove 10 is formed may be appropriately adjusted according to the shape of the cap member 1 .

本発明のキャップ部材は、浄水器用カートリッジに好適である。 The cap member of the present invention is suitable for a water purifier cartridge.

１：キャップ部材
２：平面部
３：挿入孔
３ａ：大径部
３ｂ：小径部
４：位置決め部材
４ａ：誘い込み面
５：誘い込み面
６：当接部
７：土手部
８：壁部
９：凸条
１０：溝
２０：浄水器用カートリッジ
２１：軸部材
２２：成形吸着体
２３：カバー部材
２４：接合部材 1: Cap member 2: Flat portion 3: Insertion hole 3a: Large diameter portion 3b: Small diameter portion 4: Positioning member 4a: Guide surface 5: Guide surface 6: Contact portion 7: Bank portion 8: Wall portion 9: Protruding line 10: Groove 20: Cartridge for water purifier 21: Shaft member 22: Molded adsorbent 23: Cover member 24: Joining member

Claims (6)

筒状の軸部材と、
前記軸部材の外周面に形成された成形吸着体と、
前記成形吸着体と当接する平面部と、前記軸部材の一方端が挿嵌され、前記軸部材の筒孔と連通する挿入孔とを有するキャップ部材とを有する浄水器用カートリッジに使用されるキャップ部材であって、
前記キャップ部材の挿入孔は、前記軸部材が挿嵌される面側から順に、大径部と、前記大径部よりも内径が小さい小径部とを有し、
前記大径部の内周面には、前記軸部材の外周面に当接する位置決め部材が設けられていることを特徴とするキャップ部材。 a cylindrical shaft member;
a shaped adsorbent formed on the outer peripheral surface of the shaft member;
A cap member used in a water purifier cartridge, having a flat portion that abuts on the shaped adsorbent, and a cap member having an insertion hole into which one end of the shaft member is inserted and communicated with the cylindrical hole of the shaft member. and
The insertion hole of the cap member has a large diameter portion and a small diameter portion having an inner diameter smaller than that of the large diameter portion in order from the surface side into which the shaft member is inserted,
A cap member, wherein the inner peripheral surface of the large-diameter portion is provided with a positioning member that abuts on the outer peripheral surface of the shaft member. 前記大径部の内径（ｄ１）と、前記軸部材の外径（ｄ０）との比（ｄ１／ｄ０）が、１．０５～２であり、かつ、
前記小径部の内径（ｄ２）と、前記軸部材の外径（ｄ０）との比（ｄ２／ｄ０）が、１．００２～１．０５である請求項１に記載のキャップ部材。 A ratio (d1/d0) between the inner diameter (d1) of the large diameter portion and the outer diameter (d0) of the shaft member is 1.05 to 2, and
2. The cap member according to claim 1, wherein the ratio (d2/d0) of the inner diameter (d2) of said small diameter portion and the outer diameter (d0) of said shaft member is 1.002 to 1.05. 前記平面部の前記成形吸着体と対向する面には、前記挿入孔の周囲に凸条が形成されている請求項１または２に記載のキャップ部材。 3. The cap member according to claim 1, wherein the surface of the planar portion facing the shaped adsorbent has a ridge formed around the insertion hole. 前記キャップ部材の挿入孔は、前記大径部の端縁に、テーパ状の誘い込み面が設けられている請求項１～３のいずれか一項に記載のキャップ部材。 4. The cap member according to any one of claims 1 to 3, wherein the insertion hole of the cap member is provided with a tapered guiding surface at the edge of the large diameter portion. 前記位置決め部材は、１つの挿入孔に３個以上設けられている請求項１～４のいずれか一項に記載のキャップ部材。 The cap member according to any one of claims 1 to 4, wherein three or more positioning members are provided in one insertion hole. 筒状の軸部材と、
前記軸部材の外周面に形成された成形吸着体と、
前記成形吸着体と当接する平面部と、前記軸部材の一方端が挿嵌され、前記軸部材の筒孔と連通する挿入孔とを有するキャップ部材と、
前記軸部材の他方端の筒孔を閉塞するカバー部材とを有し、
前記キャップ部材が請求項１～５のいずれか一項に記載のキャップ部材であることを特徴とする浄水器用カートリッジ。 a cylindrical shaft member;
a shaped adsorbent formed on the outer peripheral surface of the shaft member;
a cap member having a flat portion in contact with the shaped adsorbent, and an insertion hole into which one end of the shaft member is inserted and which communicates with the cylindrical hole of the shaft member;
a cover member that closes the cylindrical hole at the other end of the shaft member;
A water purifier cartridge, wherein the cap member is the cap member according to any one of claims 1 to 5.
JP2019026771A 2019-02-18 2019-02-18 Cap member for water purifier cartridge Active JP7162342B2 (en)

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