JP2017096031A - Faucet and water discharge head attached to the same - Google Patents

Faucet and water discharge head attached to the same Download PDF

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JP2017096031A
JP2017096031A JP2015231043A JP2015231043A JP2017096031A JP 2017096031 A JP2017096031 A JP 2017096031A JP 2015231043 A JP2015231043 A JP 2015231043A JP 2015231043 A JP2015231043 A JP 2015231043A JP 2017096031 A JP2017096031 A JP 2017096031A
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water discharge
discharge head
joint pipe
outer shell
water
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JP2015231043A
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裕美 粟田
Hiromi Awata
裕美 粟田
伸明 板頭
Nobuaki Bando
伸明 板頭
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Lixil Corp
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Lixil Corp
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Priority to JP2015231043A priority Critical patent/JP2017096031A/en
Priority to CN201680053242.4A priority patent/CN108026717A/en
Priority to EP16846211.7A priority patent/EP3351695A4/en
Priority to PCT/JP2016/074605 priority patent/WO2017047340A1/en
Publication of JP2017096031A publication Critical patent/JP2017096031A/en
Priority to US15/922,207 priority patent/US20180223509A1/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a tough water discharge head which can be easily attached and detached to and from a faucet body.SOLUTION: A water discharge head 106 is connected to a faucet body having a joint pipe 118 protruded from a body side surface. The water discharge head is fixed to the joint pipe by a fastener 120, and the fastener is freely inserted and removed without the usage of an exclusive tool. An inner pipe 128 for storing the joint pipe forms a double structure with an outer shell 126, and extends to an end of the outer shell from a water discharge port 130. Resin plating is applied to the outer shell. An outside diameter of the joint pipe is enlarged at a root portion thereof. The water discharge head is attached to the faucet body in a state that the inner pipe stores at least a part of an outside diameter enlarged portion of the joint pipe.SELECTED DRAWING: Figure 10

Description

本発明は、水栓、特に、水栓における吐水ヘッドの構造に関する。   The present invention relates to a structure of a water faucet, in particular, a water discharge head in the faucet.

水栓本体と吐水ヘッド（水栓の先端部分）が別部品として構成され、吐水ヘッドは交換可能である水栓が知られている（特許文献１参照）。たとえば、購入時には浄水機能を持たない水栓を選んだものの、あとで浄水機能付きの吐水ヘッドに交換したい場合や、単に、新しいデザインの吐水ヘッドに交換したい場合もある。   A faucet body and a water discharge head (the front end portion of the water faucet) are configured as separate parts, and a water faucet is known in which the water discharge head is replaceable (see Patent Document 1). For example, you may have selected a faucet that does not have a water purification function at the time of purchase, but later want to replace it with a water discharge head with a water purification function, or simply replace it with a newly designed water discharge head.

実用新案登録第３１２７９２８号公報Utility Model Registration No. 3127928

特許文献１では交換用水栓金具１（吐水ヘッド）を水栓本体のフレキシブルホースに専用の接続具を使って接続している。持ち運びを想定すると、落としたりぶつけたときにも壊れない丈夫さが交換用水栓金具１には求められる。   In Patent Document 1, the replacement faucet fitting 1 (water discharge head) is connected to the flexible hose of the faucet body using a dedicated connector. Assuming portability, the replacement faucet fitting 1 is required to be strong enough not to break when dropped or hit.

同様にして、交換用水栓金具１は軽量であることが望ましいし、水栓本体との接合部分にかかる荷重に耐えられるだけの強度も必要である。しかし、特許文献１においては、持ち運び可能な交換用水栓金具１の強度については特段の配慮もなされていない。   Similarly, it is desirable that the replacement faucet fitting 1 be lightweight, and it is also necessary to have a strength that can withstand the load applied to the joint portion with the faucet body. However, in Patent Document 1, no special consideration is given to the strength of the portable water faucet 1 for replacement.

本発明は、上記課題認識に基づいてなされたものであり、その主たる目的は、水栓本体へ着脱容易な吐水ヘッドを強化するための構造を提案することにある。   The present invention has been made on the basis of the above-mentioned problem recognition, and its main object is to propose a structure for strengthening a water discharge head that can be easily attached to and detached from a faucet body.

本発明のある態様における吐水ヘッドは、本体側面から突出する継手管を有する水栓本体部に着脱可能に接続される。吐水ヘッドは、継手管を収容する内管が外殻に挿入される二重管構造を有し、内管は、吐水口から前記外殻の端部まで延伸する。   The water discharge head in an aspect of the present invention is detachably connected to a faucet body having a joint pipe protruding from the side surface of the body. The water discharge head has a double pipe structure in which an inner pipe that accommodates a joint pipe is inserted into an outer shell, and the inner pipe extends from the water outlet to the end of the outer shell.

本発明のある態様における水栓は、本体側面から突出する継手管を有する水栓本体部と、水栓本体部に着脱可能に取り付けられる吐水ヘッドを備える。吐水ヘッドは、継手管を収容する内管が外殻に挿入される二重管構造を有する。内管は、吐水口から外殻の端部まで延伸する。   A faucet according to an aspect of the present invention includes a faucet body having a joint pipe projecting from the side of the body, and a water discharge head that is detachably attached to the faucet body. The water discharge head has a double pipe structure in which an inner pipe that accommodates a joint pipe is inserted into an outer shell. The inner tube extends from the water outlet to the end of the outer shell.

本発明によれば、着脱しやすく、かつ、強靱な吐水ヘッドを実現しやすくなる。   According to the present invention, it becomes easy to attach and detach and to realize a strong water discharge head.

水栓の側面図である。It is a side view of a faucet. 水栓の分解斜視図である。It is a disassembled perspective view of a water faucet. 第１実施形態における吐水ヘッドの分解斜視図である。It is a disassembled perspective view of the water discharging head in 1st Embodiment. 第１実施形態における接合構造の模式図である。It is a schematic diagram of the junction structure in 1st Embodiment. 第１比較例における接合構造の模式図である。It is a schematic diagram of the junction structure in a 1st comparative example. 第２比較例における接合構造の模式図である。It is a schematic diagram of the junction structure in the 2nd comparative example. 継手管の側面図である。It is a side view of a joint pipe. 吐水ヘッドと継手管の接合構造を示す模式図である。It is a schematic diagram which shows the joining structure of a water discharging head and a coupling pipe. 浄水機能のない吐水ヘッドの断面図である。It is sectional drawing of the water discharging head without a water purification function. 吐水ヘッドを水栓本体部に取り付けた水栓の断面図である。It is sectional drawing of the faucet which attached the water discharging head to the faucet main-body part. 浄水機能を有する吐水ヘッドの断面図である。It is sectional drawing of the water discharging head which has a water purification function. 吐水ヘッドを水栓本体部に取り付けた水栓の断面図である。It is sectional drawing of the faucet which attached the water discharging head to the faucet main-body part. 第２実施形態における吐水ヘッドの分解斜視図である。It is a disassembled perspective view of the water discharging head in 2nd Embodiment. 第２実施形態における吐水ヘッドの断面図である。It is sectional drawing of the water discharge head in 2nd Embodiment. 第２実施形態において吐水ヘッドを水栓本体部に取り付けた水栓の断面図である。It is sectional drawing of the faucet which attached the water discharge head to the faucet main-body part in 2nd Embodiment. 緩衝部材の周辺の拡大斜視図である。It is an expansion perspective view of the periphery of a buffer member.

［第１実施形態］
図１は、水栓１００の側面図である。図２は、水栓１００の分解斜視図である。
本実施形態における水栓１００は、水栓本体部１１２と吐水ヘッド１０６を含む。一般ユーザでも交換可能な着脱構造にて、吐水ヘッド１０６と水栓本体部１１２は接続される。図１に示す吐水ヘッド１０６は浄水機能を持たないタイプである。 [First Embodiment]
FIG. 1 is a side view of the faucet 100. FIG. 2 is an exploded perspective view of the water tap 100.
The faucet 100 in the present embodiment includes a faucet body portion 112 and a water discharge head 106. The water discharge head 106 and the faucet body 112 are connected by a detachable structure that can be replaced by a general user. The water discharge head 106 shown in FIG. 1 is a type that does not have a water purification function.

水栓本体部１１２は、吐水ハンドル１０２、回転部１０４、支柱部１０８および支柱キャップ１１４を含む。支柱部１０８は、台所などに固定され、通水管１１０（図２参照）を内蔵する。支柱部１０８を覆うように回転部１０４が設置される。回転部１０４は、支柱部１０８を中心として水平方向に回転する。回転部１０４の上にある支柱キャップ１１４は、支柱部１０８と接続される。支柱キャップ１１４により、回転部１０４は上下に抜けないように位置決めされる。ユーザが支柱キャップ１１４の上にある吐水ハンドル１０２を垂直方向に動かすと、吐水ハンドル１０２は支柱部１０８の操作突起１１６を前後させ、これによって支柱部１０８に内蔵される弁（不図示）が開閉される。   The faucet body 112 includes a water discharge handle 102, a rotating part 104, a support column 108 and a support cap 114. The column 108 is fixed to a kitchen or the like and incorporates a water conduit 110 (see FIG. 2). The rotating unit 104 is installed so as to cover the column unit 108. The rotating unit 104 rotates in the horizontal direction around the column unit 108. The support cap 114 on the rotating unit 104 is connected to the support unit 108. By the support cap 114, the rotating unit 104 is positioned so as not to come out vertically. When the user moves the water discharge handle 102 on the column cap 114 in the vertical direction, the water discharge handle 102 moves the operation protrusion 116 of the column unit 108 back and forth, thereby opening and closing a valve (not shown) built in the column unit 108. Is done.

回転部１０４から径方向、好ましくは斜め上方に継手管１１８が突出する。継手管１１８は、通水口１２４を介して通水管１１０と接続される。継手管１１８には、更に、筒状部材１７２が挿入される。吐水ヘッド１０６は、この継手管１１８および筒状部材１７２を収容した状態で、回転部１０４に着脱可能な構造にて固定される。図１に示すように、吐水ヘッド１０６の端部は回転部１０４の側面部（外周面）と対向する。すなわち、回転部１０４から継手管１１８が分岐する箇所、継手管１１８の根元において、吐水ヘッド１０６と回転部１０４（水栓本体部１１２）が対向する。   The joint pipe 118 protrudes from the rotating portion 104 in the radial direction, preferably obliquely upward. The joint pipe 118 is connected to the water pipe 110 through the water outlet 124. A tubular member 172 is further inserted into the joint pipe 118. The water discharge head 106 is fixed to the rotating portion 104 with a detachable structure in a state where the joint pipe 118 and the cylindrical member 172 are accommodated. As shown in FIG. 1, the end of the water discharge head 106 faces the side surface (outer peripheral surface) of the rotating unit 104. That is, at the location where the joint pipe 118 branches off from the rotating part 104, at the root of the joint pipe 118, the water discharge head 106 and the rotating part 104 (the faucet body part 112) face each other.

吐水ヘッド１０６は、装着時には継手管１１８の根元部分まで押し込まれる。吐水ヘッド１０６は、回転部１０４の外側面と当接することが望ましいが、少なくとも、回転部１０４と吐水ヘッド１０６の接合部分が目立たない程度に回転部１０４の外側面と近接する。より具体的には、「根元部分まで押し込む」とは、吐水ヘッド１０６が継手管１１８の全長の９０％以上を収容すること、あるいは、吐水ヘッド１０６の端部と回転部１０４の外側面の隙間が１．５ミリメートル以内であることを意味する。   The water discharge head 106 is pushed down to the root portion of the joint pipe 118 at the time of mounting. The water discharge head 106 is preferably in contact with the outer surface of the rotating unit 104, but at least close to the outer surface of the rotating unit 104 so that the joint between the rotating unit 104 and the water discharging head 106 is not noticeable. More specifically, “pushing to the root portion” means that the water discharge head 106 accommodates 90% or more of the total length of the joint pipe 118, or the gap between the end of the water discharge head 106 and the outer surface of the rotating portion 104. Is within 1.5 millimeters.

吐水ヘッド１０６の下部には周方向に延伸する差込口１２２が形成されている。吐水ヘッド１０６に継手管１１８を挿入したあと、ユーザは差込口１２２から留め具１２０を挿入する。留め具１２０は、クリップ型で一定の強度と弾力性のある部材（樹脂等）によって形成される。水栓本体部１１２に吐水ヘッド１０６を装着するとき、吐水ヘッド１０６に継手管１１８を収容し、吐水ヘッド１０６を回転部１０４に向けて押し込む。次に、差込口１２２から留め具１２０を手で押し込む。留め具１２０が継手管１１８をクリップのように把持（挟持）することで、吐水ヘッド１０６は回転部１０４に固定される。留め具１２０を外せば、吐水ヘッド１０６を手で引っ張ることにより、吐水ヘッド１０６を水栓本体部１１２から簡単に外すことができる。   An insertion port 122 extending in the circumferential direction is formed in the lower part of the water discharge head 106. After inserting the joint pipe 118 into the water discharge head 106, the user inserts the fastener 120 from the insertion port 122. The fastener 120 is formed of a clip-type member (resin or the like) having a certain strength and elasticity. When the water discharge head 106 is attached to the faucet main body 112, the joint pipe 118 is accommodated in the water discharge head 106, and the water discharge head 106 is pushed toward the rotating portion 104. Next, the fastener 120 is pushed in from the insertion port 122 by hand. The water discharge head 106 is fixed to the rotating unit 104 by the fastener 120 gripping (holding) the joint pipe 118 like a clip. If the fastener 120 is removed, the water discharge head 106 can be easily removed from the faucet body 112 by pulling the water discharge head 106 by hand.

なお、本実施形態における「着脱可能」は、接着や溶接などにより、吐水ヘッド１０６と水栓本体部１１２を完全固定する構造は含まない。家庭で一般ユーザが自ら着脱できる構造を意味し、スクリュードライバーなどの着脱のための専用工具を必須としない構造が好ましい。本実施形態においては、留め具１２０により、吐水ヘッド１０６と水栓本体部１１２を固定しているが、留め具１２０は工具を使わなくても、指や爪でも挿抜できる。また、任意の金属棒等を使って留め具１２０をひっかけて取り外してもよいが、着脱のための専用工具は必須ではない。もちろん、留め具１２０などの付加的な固定部材を使わない構成であってもよい。   The “detachable” in the present embodiment does not include a structure that completely fixes the water discharge head 106 and the faucet main body 112 by bonding or welding. It means a structure that a general user can attach and detach at home, and a structure that does not require a dedicated tool for attaching and detaching such as a screwdriver is preferable. In the present embodiment, the water discharge head 106 and the faucet body 112 are fixed by the fastener 120, but the fastener 120 can be inserted and removed with a finger or a nail without using a tool. Moreover, although the fastener 120 may be hooked and removed using arbitrary metal bars etc., the exclusive tool for attachment / detachment is not essential. Of course, the structure which does not use additional fixing members, such as the fastener 120, may be sufficient.

継手管１１８の根元部分には外径拡大部１７４が形成される。本実施形態における外径拡大部１７４はテーパー形状を有するが、テーパー状であることは必須ではなく、少なくとも、継手管１１８の中央部の外径よりも大きな外径を有する部分であればよい。ユーザは、通常、吐水ヘッド１０６を操作することで回転部１０４を回転させる。このとき、継手管１１８の根元部分に回転にともなう負荷が集中する。本実施形態においては継手管１１８の根元部分に外径拡大部１７４を形成することにより、継手管１１８と回転部１０４の接続強度を向上させている。   An outer diameter enlarged portion 174 is formed at the root portion of the joint pipe 118. Although the outer diameter enlarged portion 174 in the present embodiment has a tapered shape, it is not essential that the outer diameter is enlarged, and at least a portion having an outer diameter larger than the outer diameter of the central portion of the joint pipe 118 may be used. The user usually rotates the rotating unit 104 by operating the water discharge head 106. At this time, the load accompanying the rotation concentrates on the root portion of the joint pipe 118. In this embodiment, the connection strength between the joint pipe 118 and the rotating part 104 is improved by forming the outer diameter enlarged portion 174 at the root portion of the joint pipe 118.

吐水ヘッド１０６は、少なくとも、外径拡大部１７４の全部または一部を収容するまで回転部１０４に向けて押し込んで装着される。吐水ヘッド１０６は、その端部を回転部１０４の外側面と当接させ、外径拡大部１７４を完全に収容してもよい。   The water discharge head 106 is attached by being pushed toward the rotating portion 104 until at least all or a part of the outer diameter enlarged portion 174 is accommodated. The water discharge head 106 may have its end abutted against the outer surface of the rotating portion 104 to completely accommodate the outer diameter enlarged portion 174.

図３は、第１実施形態における吐水ヘッド１０６の分解斜視図である。
第１実施形態の吐水ヘッド１０６は、外殻１２６、内管１２８、吐水口部材１３０および整流部材１３２を含む。継手管１１８および継手管１１８に固定される筒状部材１７２を収容するのは内管１２８である。水道水は通水管１１０から継手管１１８内の筒状部材１７２、内管１２８を経由して、吐水口部材１３０に至り、整流部材１３２を通ってシンク（図示せず）に吐水される。通水管１１０に接続され、支柱部１０８に内蔵される弁は、吐水ハンドル１０２および操作突起１１６によって開閉される。 FIG. 3 is an exploded perspective view of the water discharge head 106 in the first embodiment.
The water discharge head 106 of the first embodiment includes an outer shell 126, an inner pipe 128, a water discharge port member 130, and a rectifying member 132. The inner pipe 128 accommodates the joint pipe 118 and the cylindrical member 172 fixed to the joint pipe 118. The tap water reaches the water outlet member 130 from the water pipe 110 through the cylindrical member 172 and the inner pipe 128 in the joint pipe 118, and is discharged to the sink (not shown) through the rectifying member 132. A valve connected to the water conduit 110 and built in the support column 108 is opened and closed by the water discharge handle 102 and the operation projection 116.

内管１２８は、外殻１２６（外管）によって覆われる。すなわち、吐水ヘッド１０６は、内管１２８と外殻１２６の二重構造となっている。回転部１０４の回転軸となるのは支柱部１０８であり、吐水ヘッド１０６は支柱部１０８ではなく回転部１０４から分岐する継手管１１８と接続される。   The inner tube 128 is covered with an outer shell 126 (outer tube). That is, the water discharge head 106 has a double structure of the inner tube 128 and the outer shell 126. The rotating shaft of the rotating unit 104 is the support column 108, and the water discharge head 106 is connected to the joint pipe 118 branched from the rotating unit 104 instead of the supporting column unit 108.

継手管１１８が吐水ヘッド１０６によって延長される構造であるため、吐水ヘッド１０６を水平方向に回転させると、その回転力がそのまま継手管１１８に伝わるため、ユーザによる回転操作を回転部１０４の回転力として伝えやすい。継手管１１８は吐水ヘッド１０６に収容されるため、継手管１１８は外観を構成しない。   Since the joint pipe 118 has a structure that is extended by the water discharge head 106, when the water discharge head 106 is rotated in the horizontal direction, the rotational force is directly transmitted to the joint pipe 118. Easy to convey as. Since the joint pipe 118 is accommodated in the water discharge head 106, the joint pipe 118 does not constitute an appearance.

吐水ヘッド１０６を内管１２８と外殻１２６の二重構造にすることで、吐水ヘッド１０６全体の強度を向上させている。内管１２８は、外殻１２６のほぼ全域をカバーできるように、吐水口部材１３０から外殻１２６の端部（回転部１０４と対向する部分）まで延伸する。ここでいう「外殻１２６の端部」とは、外殻１２６の先端１７６から３ミリメートル以内の範囲をいう。このため、内管１２８の端部と外殻１２６の端部はほぼ一致している。外殻１２６だけでなく内管１２８も、水栓本体部１１２に装着されるとき、少なくとも、外径拡大部１７４の全部または一部も収容するまで押し込まれる。あるいは、内管１２８は外殻１２６の端部からその一部が飛び出す形状であってもよい。   By making the water discharge head 106 have a double structure of the inner tube 128 and the outer shell 126, the strength of the water discharge head 106 as a whole is improved. The inner tube 128 extends from the spout member 130 to the end of the outer shell 126 (the portion facing the rotating portion 104) so as to cover almost the entire region of the outer shell 126. Here, the “end portion of the outer shell 126” refers to a range within 3 millimeters from the tip 176 of the outer shell 126. For this reason, the end of the inner tube 128 and the end of the outer shell 126 are substantially coincident. When the inner pipe 128 as well as the outer shell 126 is attached to the faucet body 112, it is pushed in until at least all or a part of the outer diameter enlarged portion 174 is accommodated. Alternatively, the inner tube 128 may have a shape in which a part thereof protrudes from the end portion of the outer shell 126.

内管１２８と外殻１２６は役割が異なる。外殻１２６は美観が重視されるが、外殻１２６に内蔵される内管１２８の美観はそれほど重要ではない。一方、内管１２８は水の通り道であるとともに継手管１１８と直接接合するため、特にその内部構造には高い加工精度が求められる。   The inner tube 128 and the outer shell 126 have different roles. The outer shell 126 places importance on aesthetics, but the aesthetics of the inner tube 128 built in the outer shell 126 is not so important. On the other hand, since the inner pipe 128 is a passage for water and is directly joined to the joint pipe 118, a high machining accuracy is particularly required for the inner structure.

軽量化およびコストダウンのため、外殻１２６および内管１２８の双方をＡＢＳ樹脂やポリアセタール等の樹脂により形成する。外殻１２６を軽量化できれば、取り換え式の吐水ヘッド１０６を持ち運びやすいし、安全でもある。樹脂は金属よりも強度が低いため、内管１２８および外殻１２６の二重構造により吐水ヘッド１０６を強化している。また、金属光沢をもたせるため、外殻１２６は樹脂メッキ加工を施される。樹脂メッキに際しては、先端１７６付近をその内側から支持した状態で外殻１２６をメッキ液に浸す。メッキ液は高温であるため、外殻１２６の支持部分（内側）にストレスがかかりやすい。このストレスは外殻１２６の内部構造の加工精度を低下させる可能性がある。一方、内管１２８は樹脂メッキをする必要がないので、このようなストレスとは無縁である。このため、比較的高い加工精度が求められる内管１２８を外殻１２６とは別構成にすることで、外殻１２６の美観と内管１２８の機能性を両立させている。   Both the outer shell 126 and the inner tube 128 are formed of a resin such as ABS resin or polyacetal for weight reduction and cost reduction. If the weight of the outer shell 126 can be reduced, the replaceable water discharge head 106 can be easily carried and safe. Since the resin has a lower strength than the metal, the water discharge head 106 is reinforced by the double structure of the inner tube 128 and the outer shell 126. Further, the outer shell 126 is subjected to a resin plating process in order to have a metallic luster. In resin plating, the outer shell 126 is immersed in the plating solution with the vicinity of the tip 176 supported from the inside. Since the plating solution is hot, stress is likely to be applied to the support portion (inner side) of the outer shell 126. This stress may reduce the processing accuracy of the internal structure of the outer shell 126. On the other hand, since the inner pipe 128 does not need to be resin-plated, it is free from such stress. For this reason, the aesthetic appearance of the outer shell 126 and the functionality of the inner tube 128 are made compatible by making the inner tube 128 that requires relatively high machining accuracy different from the outer shell 126.

回転部１０４の外側面は曲面形状（円筒形状）を有するが、外殻１２６および内管１２８の端面も回転部１０４の曲面形状と一致する形状に加工されている。また、詳細は後述するが、外殻１２６および内管１２８の端面は外径拡大部１７４のテーパー面に一致する形状に加工されている。すなわち、外殻１２６および内管１２８の端面は、外径拡大部１７４および回転部１０４の外側面の形状と一致する形状を構成している。このため、吐水ヘッド１０６と回転部１０４を隙間無く、スムーズな外観にて接続できる。   The outer surface of the rotating unit 104 has a curved surface shape (cylindrical shape), but the end surfaces of the outer shell 126 and the inner tube 128 are also processed to a shape that matches the curved surface shape of the rotating unit 104. Further, as will be described in detail later, the end surfaces of the outer shell 126 and the inner tube 128 are processed into a shape that matches the tapered surface of the outer diameter enlarged portion 174. That is, the end surfaces of the outer shell 126 and the inner tube 128 form a shape that matches the shape of the outer surface of the outer diameter enlarged portion 174 and the rotating portion 104. For this reason, the water discharge head 106 and the rotation part 104 can be connected with a smooth appearance without a gap.

図４は、本実施形態における接合構造の模式図である。
接合構造の特徴を説明するための模式図であるため、図４，５，６では筒状部材１７２や外径拡大部１７４等の細部構造は省略している。本実施形態においては、回転部１０４の一部として継手管１１８を設け、これを吐水ヘッド１０６に収容することで吐水ヘッド１０６と水栓本体部１１２を接続している。吐水ヘッド１０６と回転部１０４の境界面１０５（接合部分）は、継手管１１８の根元に形成される。 FIG. 4 is a schematic diagram of the bonding structure in the present embodiment.
Since it is a schematic diagram for explaining the feature of the joining structure, the detailed structures such as the cylindrical member 172 and the outer diameter enlarged portion 174 are omitted in FIGS. In the present embodiment, the joint pipe 118 is provided as a part of the rotating unit 104, and the water discharge head 106 and the faucet main body 112 are connected by accommodating the joint pipe 118 in the water discharge head 106. A boundary surface 105 (joint portion) between the water discharge head 106 and the rotating unit 104 is formed at the base of the joint pipe 118.

図５、図６は、比較例における接合構造の模式図である。
図５は、回転部１３８ではなく、吐水ヘッド１４０に継手管１４２を設けるタイプを示す比較例（第１比較例）である。回転部１３８の側面には斜め上方に分岐部１４６が形成される。吐水ヘッド１４０の一部としての継手管１４２を分岐部１４６に挿入することで吐水ヘッド１４０と回転部１３８を接続する。吐水ヘッド１４０と分岐部１４６の境界面１４４（接合部分）は、分岐部１４６の先端に形成される。図６に示す比較例（第２比較例）においては、分岐部１４７に継手管１１８が設けられる。吐水ヘッド１４１に継手管１１８を収容する点においては本実施形態と同様であるが、境界面１４４は図５と同じく分岐部１４６の先端１７６に形成される。 5 and 6 are schematic views of the joining structure in the comparative example.
FIG. 5 is a comparative example (first comparative example) showing a type in which the joint pipe 142 is provided in the water discharge head 140 instead of the rotating portion 138. A branching portion 146 is formed obliquely upward on the side surface of the rotating portion 138. By inserting a joint pipe 142 as a part of the water discharge head 140 into the branch portion 146, the water discharge head 140 and the rotating portion 138 are connected. A boundary surface 144 (joining portion) between the water discharge head 140 and the branch portion 146 is formed at the tip of the branch portion 146. In the comparative example (second comparative example) shown in FIG. 6, the joint pipe 118 is provided at the branch portion 147. Although the point which accommodates the joint pipe | tube 118 in the water discharging head 141 is the same as that of this embodiment, the boundary surface 144 is formed in the front-end | tip 176 of the branch part 146 similarly to FIG.

図４の構造の場合、本体側面から突出する継手管１１８を吐水ヘッド１０６が覆うため、吐水ヘッド１０６の外径に実質的な制約がない。吐水ヘッド１０６の内管１２８は、その内径を継手管１１８の外径と一致させる必要があるものの、外殻１２６の内径や外径は比較的自由に設計できる。一方、図５、図６の比較例の場合、吐水ヘッド１４０、１４１の外径と分岐部１４６、１４７の外径を一致させる必要があるため、吐水ヘッド１４０、１４１の外径は分岐部１４６、１４７の外径に規制される。   In the case of the structure of FIG. 4, since the water discharge head 106 covers the joint pipe 118 protruding from the side surface of the main body, there is no substantial restriction on the outer diameter of the water discharge head 106. Although the inner pipe 128 of the water discharge head 106 needs to have the inner diameter matched with the outer diameter of the joint pipe 118, the inner diameter and the outer diameter of the outer shell 126 can be designed relatively freely. On the other hand, in the case of the comparative example of FIGS. 5 and 6, the outer diameter of the water discharge heads 140 and 141 and the outer diameter of the branch portions 146 and 147 need to be matched, so the outer diameter of the water discharge heads 140 and 141 is the branch portion 146. 147 is regulated to an outer diameter of 147.

図４に示したように回転部１３８の外側面から突出する継手管１１８を吐水ヘッド１０６に収容する場合、回転部１０４の表面を境界面１０５にできるため、第１、第２比較例に比べて接合部分が目立たないというメリットもある。第１、第２比較例のような接続構造の場合には境界面１４４が目立つため、ユーザは吐水ヘッド１４０を引っ張ることで接合部分からホースを引き出せるのではないかと誤解してしまう可能性も考えられる。   As shown in FIG. 4, when the joint pipe 118 protruding from the outer surface of the rotating part 138 is accommodated in the water discharge head 106, the surface of the rotating part 104 can be made the boundary surface 105, and therefore, compared with the first and second comparative examples. There is also an advantage that the joint is not conspicuous. In the case of the connection structure as in the first and second comparative examples, since the boundary surface 144 is conspicuous, there is a possibility that the user may misunderstand that the hose can be pulled out from the joint portion by pulling the water discharge head 140. It is done.

第１、第２比較例の場合、境界面１４４に隙間ができると埃などの異物が分岐部１４６の中に入り込みやすい。これに対して、本実施形態の境界面１０５に隙間ができてそこに異物が入りこんでもそれが継手管１１８や吐水ヘッド１０６の中にまで入り込む可能性はほとんどない。吐水ヘッド１０６が斜め上方に延びるためである。   In the case of the first and second comparative examples, if there is a gap on the boundary surface 144, foreign matter such as dust is likely to enter the branch portion 146. On the other hand, even if a gap is formed in the boundary surface 105 of the present embodiment and a foreign substance enters the boundary surface 105, there is almost no possibility that it enters the joint pipe 118 or the water discharge head 106. This is because the water discharge head 106 extends obliquely upward.

特に、第１比較例における継手管１４２は吐水ヘッド１４０からの突起となるため、吐水ヘッド１４０の突起部分（継手管１４２）が回転部１３８の側面等に不意に接触することで水栓本体部を傷つけてしまうリスクがある。   In particular, since the joint pipe 142 in the first comparative example is a protrusion from the water discharge head 140, the protrusion portion (the joint pipe 142) of the water discharge head 140 unexpectedly contacts the side surface of the rotating portion 138 and the like, There is a risk of hurting.

本実施形態の場合、継手管１１８の長さに多少のばらつきがあっても、吐水ヘッド１０６への継手管１１８の挿入深度を調整することで長さのばらつきを吸収しやすい。これに対して、第１比較例の場合には、継手管１４２の長さは分岐部１４６の長さに制約されやすい。   In the case of this embodiment, even if there is some variation in the length of the joint pipe 118, it is easy to absorb the length variation by adjusting the insertion depth of the joint pipe 118 into the water discharge head 106. On the other hand, in the case of the first comparative example, the length of the joint pipe 142 is easily restricted by the length of the branch portion 146.

本実施形態においては、内管１２８は回転部１０４との接続に関与するが、外殻１２６は直接的には関与しない。接続にともなう負荷が外殻１２６にかかりにくいので、外殻１２６の材質を比較的自由に選ぶことができる。   In the present embodiment, the inner tube 128 is involved in the connection with the rotating unit 104, but the outer shell 126 is not directly involved. Since the load accompanying the connection is not easily applied to the outer shell 126, the material of the outer shell 126 can be selected relatively freely.

図７は、継手管１１８の側面図である。
継手管１１８は、その先端により小さい径の筒状部材１７２が差し込まれ、回転部１０４との接続部分（根元部分）にはより大きな径に拡大するテーパー状の外径拡大部１７４が形成される。継手管１１８と回転部１０４は樹脂で一体成型される。回転部１０４および継手管１１８に対応した型枠に樹脂を流し、固定化したあと型枠から回転部１０４等を外す。このときには、外部に露出する回転部１０４の部分ではなく、外部に露出しない継手管１１８の部分に荷重をかけて型枠から外せばよい。 FIG. 7 is a side view of the joint pipe 118.
The joint pipe 118 has a cylindrical member 172 with a smaller diameter inserted at the tip thereof, and a tapered outer diameter enlarged portion 174 that expands to a larger diameter is formed at a connection portion (root portion) with the rotating portion 104. . The joint pipe 118 and the rotating part 104 are integrally formed of resin. Resin is poured into a mold corresponding to the rotating part 104 and the joint pipe 118, and after fixing, the rotating part 104 and the like are removed from the mold. At this time, it is only necessary to apply a load to the portion of the joint pipe 118 that is not exposed to the outside, not the portion of the rotating portion 104 that is exposed to the outside, and remove it from the mold.

継手管１１８の先端部には、切欠１７８（第１の回転規制部）が形成される。内管１２８の内壁には突起１８２（図９，１１で後述，第２の回転規制部）が形成され、装着時には突起部分と切欠１７８が係合する。突起１８２と切欠１７８の係合により、吐水ヘッド１０６の周方向回転が規制される。   A cutout 178 (first rotation restricting portion) is formed at the distal end portion of the joint pipe 118. A protrusion 182 (a second rotation restricting portion, which will be described later with reference to FIGS. 9 and 11) is formed on the inner wall of the inner tube 128, and the protrusion and the notch 178 engage with each other at the time of mounting. The circumferential rotation of the water discharge head 106 is restricted by the engagement between the protrusion 182 and the notch 178.

図８は、吐水ヘッド１０６と継手管１１８の接合構造を示す模式図である。
まず、外径拡大部１７４に対し、外殻１２６および内管１２８の双方の端面が対向する。外殻１２６および内管１２８はテーパー状の端面（以下、「吐水ヘッド端面１８０」とよぶ）を形成し、吐水ヘッド端面１８０（第１のテーパー面）は外径拡大部１７４のテーパー状の外側面（第２のテーパー面）と少なくとも同方向の傾斜を有し、お互いに略平行となる角度にて対向する。ほぼ同一形状のテーパー面同士で対向するため、境界面１０５の隙間（溝）が目立ちにくい構造となる。吐水ヘッド端面１８０は外径拡大部１７４や回転部１０４と当接してもよい。吐水ヘッド端面１８０は外径拡大部１７４または回転部１０４と全周に渡って当接してもよいし、その一部を当接させてもよい。一部当接の場合には、ユーザから視認されやすい上面側を優先的に当接させることが望ましい。同様に、当接ではなく対向（非当接）させる場合にも、上面側を優先的に近接させることが望ましい。 FIG. 8 is a schematic diagram showing a joint structure between the water discharge head 106 and the joint pipe 118.
First, the end surfaces of both the outer shell 126 and the inner tube 128 face the outer diameter enlarged portion 174. The outer shell 126 and the inner tube 128 form a tapered end surface (hereinafter referred to as “water discharge head end surface 180”), and the water discharge head end surface 180 (first taper surface) is a tapered outer surface of the outer diameter enlarged portion 174. The side surface (second tapered surface) has an inclination in at least the same direction and faces each other at an angle substantially parallel to each other. Since the tapered surfaces having substantially the same shape are opposed to each other, the gap (groove) of the boundary surface 105 is less noticeable. The water discharge head end surface 180 may come into contact with the outer diameter enlarged portion 174 or the rotating portion 104. The water discharge head end surface 180 may abut against the outer diameter enlarged portion 174 or the rotating portion 104 over the entire circumference, or a part thereof may abut. In the case of partial contact, it is desirable to preferentially contact the upper surface side that is easily visible to the user. Similarly, it is desirable to make the upper surface side preferentially approach even when facing (not contacting) instead of contacting.

内管１２８の内側面は、通水路としての小収容部１８４、筒状部材１７２に対応する中収容部１８６（第２収容部）、継手管１１８に対応する大収容部１８８（第１収容部）を有する。中収容部１８６の内径（第２の内径）よりも大収容部１８８の内径（第１の内径）は大きい。比較的小さな外径を有する筒状部材１７２には、小さな第１Ｏリング１５２が取り付けられ、継手管１１８には比較的大きな第２Ｏリング１５０が取り付けられる。第１Ｏリング１５２および第２Ｏリング１５０はいずれもゴム製である。第１Ｏリング１５２の主たる役割は、筒状部材１７２から吐出される水が逆流して、留め具１２０や境界面１０５から漏れないようにすることである。第１Ｏリング１５２は小さいため、確実に取り付けやすく「よれ」が生じにくい。筒状部材１７２の正しいポジションに第１Ｏリング１５２を取り付けやすいため、確実に止水しやすい。   The inner surface of the inner pipe 128 includes a small accommodating portion 184 as a water passage, a middle accommodating portion 186 (second accommodating portion) corresponding to the tubular member 172, and a large accommodating portion 188 (first accommodating portion) corresponding to the joint pipe 118. ). The inner diameter (first inner diameter) of the large accommodating portion 188 is larger than the inner diameter (second inner diameter) of the middle accommodating portion 186. A small first O-ring 152 is attached to the cylindrical member 172 having a relatively small outer diameter, and a relatively large second O-ring 150 is attached to the joint pipe 118. Both the first O-ring 152 and the second O-ring 150 are made of rubber. The main role of the first O-ring 152 is to prevent the water discharged from the cylindrical member 172 from flowing back and leaking from the fastener 120 and the boundary surface 105. Since the first O-ring 152 is small, it is easy to be surely attached and is not easily “flung”. Since it is easy to attach the first O-ring 152 to the correct position of the cylindrical member 172, it is easy to reliably stop water.

一方、第２Ｏリング１５０の主たる役割は、吐水ヘッド１０６のがたつきを防止することである。第２Ｏリング１５０は大きいため、第１Ｏリング１５２よりも継手管１１８と内管１２８との接着性を高めやすい。また、吐水ヘッド１０６の装着時に第２Ｏリング１５０が押しつぶされるため、その復元力が吐水ヘッド１０６を回転部１０４に押しつける力として作用する。   On the other hand, the main role of the second O-ring 150 is to prevent the water discharge head 106 from rattling. Since the second O-ring 150 is large, it is easier to improve the adhesion between the joint pipe 118 and the inner pipe 128 than the first O-ring 152. Further, since the second O-ring 150 is crushed when the water discharge head 106 is attached, the restoring force acts as a force pressing the water discharge head 106 against the rotating unit 104.

以上のように、吐水ヘッド１０６は着脱可能（交換可能）に水栓本体部１１２に取り付けられる。家庭で着脱可能であるため、取り付け状況によっては接合部分の溝が大きくなってしまう可能性もある。そこで、図５の第１比較例のように分岐部１４６に吐水ヘッド１４０を差し込むのではなく、吐水ヘッド１０６（外殻１２６および内管１２８）を継手管１１８の根元部分まで押し込む構造としている。この結果、回転部１０４の表面がそのまま境界面１０５となるため、第１、第２比較例に比べると境界面１０５が目立ちにくい。   As described above, the water discharge head 106 is detachably attached to the faucet body 112. Since it is detachable at home, there is a possibility that the groove of the joint portion becomes large depending on the attachment situation. Therefore, instead of inserting the water discharge head 140 into the branching portion 146 as in the first comparative example of FIG. 5, the water discharge head 106 (the outer shell 126 and the inner pipe 128) is pushed into the root portion of the joint pipe 118. As a result, since the surface of the rotating unit 104 becomes the boundary surface 105 as it is, the boundary surface 105 is less noticeable than the first and second comparative examples.

また、継手管１１８と回転部１０４の接合強化のため、継手管１１８の根元に外径拡大部１７４を形成している。外径拡大部１７４を曲面形状で形成し、それに対応して吐水ヘッド端面１８０も同一の曲面形状とすることで、境界面１０５がいっそう目立ちにくくなる。吐水ヘッド端面１８０の形状と外径拡大部１７４（または回転部１０４）の曲面形状は一致する。ここでいう「一致」とは、吐水ヘッド１０６と外径拡大部１７４の対向部分に大きな隙間、たとえば、１．０ミリメートル以上の隙間が生じない程度に吐水ヘッド端面１８０の形状を外径拡大部１７４の曲面形状に近づけることをいう。   Further, an outer diameter enlarged portion 174 is formed at the base of the joint pipe 118 in order to strengthen the joint between the joint pipe 118 and the rotating portion 104. The outer diameter enlarged portion 174 is formed in a curved surface shape, and the water discharge head end surface 180 is also formed in the same curved surface shape accordingly, so that the boundary surface 105 becomes more inconspicuous. The shape of the water discharge head end surface 180 and the curved surface shape of the outer diameter enlarged portion 174 (or the rotating portion 104) match. Here, “match” means that the shape of the water discharge head end surface 180 is such that a large gap, for example, a gap of 1.0 mm or more does not occur in the opposite portion of the water discharge head 106 and the outer diameter enlargement portion 174. It means approaching the curved surface shape of 174.

外径拡大部１７４の形状と同一形状となるように吐水ヘッド端面１８０を形成しているため、吐水ヘッド端面１８０の向きを外径拡大部１７４に合わせながら吐水ヘッド１０６を差し込むことで正しく接続できる。更に、切欠１７８と内管１２８の内側面に形成される突起（後述）がきちんと係合しなければ、吐水ヘッド１０６が正しくセットされないようにすれば、いっそう接続を確実にできる。吐水ヘッド端面１８０が広口であることも、吐水ヘッド１０６の装着容易化に寄与する。   Since the water discharge head end surface 180 is formed so as to have the same shape as the outer diameter enlarged portion 174, the water discharge head 106 can be correctly connected by inserting the water discharge head 106 while aligning the direction of the water discharge head end surface 180 with the outer diameter enlarged portion 174. . Further, if the notches 178 and protrusions (described later) formed on the inner surface of the inner tube 128 are not properly engaged, the connection can be further ensured by preventing the water discharge head 106 from being set correctly. The wide end of the water discharge head end surface 180 also contributes to easy mounting of the water discharge head 106.

まとめると、継手管１１８と回転部１０４の接合強度を向上させるためにテーパー状の外径拡大部１７４を形成しているが、この外径拡大部１７４の外側面と同一形状にて吐水ヘッド端面１８０を形成することで、境界面１０５を目立たなくできる。また、外径拡大部１７４の外側面形状と吐水ヘッド端面１８０の形状が同一であるため、吐水ヘッド１０６を正しい位置に装着しやすくなる。   In summary, the tapered outer diameter enlarged portion 174 is formed in order to improve the joint strength between the joint pipe 118 and the rotating portion 104, and the water discharge head end surface has the same shape as the outer surface of the outer diameter enlarged portion 174. By forming 180, the boundary surface 105 can be made inconspicuous. Moreover, since the outer surface shape of the outer diameter enlarged portion 174 and the shape of the water discharge head end surface 180 are the same, the water discharge head 106 can be easily mounted at the correct position.

継手管１１８には比較的大きな第２Ｏリング１５０を嵌めることで、継手管１１８と吐水ヘッド１０６の接続を確実にしている。また、筒状部材１７２には比較的小さな第１Ｏリング１５２を嵌めることで止水を確実にしている。   A relatively large second O-ring 150 is fitted into the joint pipe 118 to ensure the connection between the joint pipe 118 and the water discharge head 106. The tubular member 172 is fitted with a relatively small first O-ring 152 to ensure water stoppage.

図９は、浄水機能のない吐水ヘッド１０６の断面図である。図１０は、吐水ヘッド１０６を水栓本体部１１２に取り付けた水栓１００ａの断面図である。
上述のように、吐水ヘッド１０６は、内管１２８と外殻１２６の二重構造となっており、内管１２８は第３Ｏリング１５４を挟んで吐水口部材１３０に接続される。吐水口部材１３０の出口は整流部材１３２によってキャップされる。整流部材１３２は、内管１２８からの流水を整流して泡沫水に変える。 FIG. 9 is a cross-sectional view of the water discharge head 106 having no water purification function. FIG. 10 is a cross-sectional view of a faucet 100 a in which the water discharge head 106 is attached to the faucet body 112.
As described above, the water discharge head 106 has a double structure of the inner tube 128 and the outer shell 126, and the inner tube 128 is connected to the water discharge port member 130 with the third O-ring 154 interposed therebetween. The outlet of the spout member 130 is capped by a rectifying member 132. The rectifying member 132 rectifies the flowing water from the inner pipe 128 and converts it into foam water.

継手管１１８の内部には筒状部材１７２がねじ込まれ、内管１２８（中収容部１８６）と筒状部材１７２との間を第１Ｏリング１５２で止水している。通水口１２４と筒状部材１７２の間は別の第４Ｏリング１５５により止水される。内管１２８に継手管１１８が挿入され、吐水ヘッド１０６は回転部１０４（外径拡大部１７４）と対向または当接する。内管１２８（大収容部１８８）と継手管１１８の間には第２Ｏリング１５０が嵌められ、がたつきを防止している。内管１２８に継手管１１８が挿入されたあと、留め具１２０が継手管１１８を把持することで、吐水ヘッド１０６は継手管１１８にしっかりと固定される。   A cylindrical member 172 is screwed into the joint pipe 118, and the first O-ring 152 stops water between the inner pipe 128 (medium accommodating portion 186) and the cylindrical member 172. Between the water passage 124 and the cylindrical member 172, water is stopped by another fourth O-ring 155. A joint pipe 118 is inserted into the inner pipe 128, and the water discharge head 106 faces or abuts against the rotating part 104 (outer diameter enlarged part 174). A second O-ring 150 is fitted between the inner pipe 128 (large accommodating portion 188) and the joint pipe 118 to prevent rattling. After the joint pipe 118 is inserted into the inner pipe 128, the catch 120 holds the joint pipe 118, so that the water discharge head 106 is firmly fixed to the joint pipe 118.

また、図１０に付記されているように、内管１２８の内側面には突起１８２（第２回転規制部）が形成される。この突起１８２と継手管１１８の切欠１７８を位置合わせして、吐水ヘッド１０６を挿入すると、突起１８２と切欠１７８が係合し、吐水ヘッド１０６の周方向回転が防止される。なお、内管１２８に切欠１７８、継手管１１８に突起１８２を形成してもよい。また、切欠１７８および突起１８２の加工性を考慮し、内管１２８および継手管１１８の全体を樹脂により形成してもよいが、切欠１７８および突起１８２の部分だけを樹脂により形成してもよい。   Further, as noted in FIG. 10, a protrusion 182 (second rotation restricting portion) is formed on the inner surface of the inner tube 128. When the protrusion 182 and the notch 178 of the joint pipe 118 are aligned and the water discharge head 106 is inserted, the protrusion 182 and the notch 178 are engaged, and the water discharge head 106 is prevented from rotating in the circumferential direction. A notch 178 may be formed in the inner pipe 128 and a protrusion 182 may be formed in the joint pipe 118. In consideration of the workability of the notches 178 and the protrusions 182, the entire inner pipe 128 and the joint pipe 118 may be formed of resin, but only the portions of the notches 178 and the protrusions 182 may be formed of resin.

図１１は、浄水機能を有する吐水ヘッド１４８の断面図である。図１２は、吐水ヘッド１４８を水栓本体部１１２に取り付けた水栓１００ｂの断面図である。
浄水機能を有する吐水ヘッド１４８も、内管１７０と外殻１６４の二重構造を有し、先端には吐水部材１６０が取り付けられる。吐水部材１６０に設けられる浄水ハンドル１６２は、原水と浄水を切り替えるための操作部材である。吐水ヘッド１４８の吐水ヘッド端面１８０も、外径拡大部１７４の外周形状に合わせた曲面として形成される（図１１参照）。 FIG. 11 is a cross-sectional view of a water discharge head 148 having a water purification function. FIG. 12 is a cross-sectional view of the faucet 100 b in which the water discharge head 148 is attached to the faucet body 112.
The water discharge head 148 having a water purification function also has a double structure of an inner tube 170 and an outer shell 164, and a water discharge member 160 is attached to the tip. A water purification handle 162 provided on the water discharge member 160 is an operation member for switching between raw water and purified water. The water discharge head end surface 180 of the water discharge head 148 is also formed as a curved surface matching the outer peripheral shape of the outer diameter enlarged portion 174 (see FIG. 11).

図１１に示す構造においては、内管１７０はカートリッジ保持部１５６と嵌合し、その一部としてカートリッジ保持部１５６を含む。内管１７０に継手管１１８が挿入される。内管１７０とカートリッジ保持部１５６の間には第５Ｏリング１６６が挿入される。カートリッジ保持部１５６はまた、浄水カートリッジ１５８を内蔵し、吐水部材１６０を外せば浄水カートリッジ１５８は交換可能である。カートリッジ保持部１５６の内部には弁１６８がある。浄水カートリッジ１５８をセットするときには、浄水カートリッジ１５８が弁１６８を押し出し、内管１７０とカートリッジ保持部１５６（浄水カートリッジ１５８）は連通する。一方、浄水カートリッジ１５８が取り外されたときには、内管１７０内の水圧で弁１６８は閉じられる。弁１６８は、通水状態のまま浄水カートリッジ１５８を取り外した時に、内管１７０の中の水をそのまま吐水ヘッド１４８の先端から噴射させないための安全装置である。   In the structure shown in FIG. 11, the inner tube 170 is fitted with the cartridge holding part 156 and includes the cartridge holding part 156 as a part thereof. A joint pipe 118 is inserted into the inner pipe 170. A fifth O-ring 166 is inserted between the inner tube 170 and the cartridge holding part 156. The cartridge holding unit 156 also has a built-in water purification cartridge 158, and the water purification cartridge 158 can be replaced if the water discharge member 160 is removed. Inside the cartridge holding part 156 is a valve 168. When the water purification cartridge 158 is set, the water purification cartridge 158 pushes out the valve 168, and the inner pipe 170 and the cartridge holder 156 (water purification cartridge 158) communicate with each other. On the other hand, when the water purification cartridge 158 is removed, the valve 168 is closed by the water pressure in the inner pipe 170. The valve 168 is a safety device for preventing the water in the inner pipe 170 from being sprayed from the tip of the water discharge head 148 as it is when the water purification cartridge 158 is removed while the water is passing.

図１２に付記されているように、内管１７０の内側面には突起１８２（第２回転規制部）が形成される。この突起１８２と継手管１１８の切欠１７８を係合させることで、吐水ヘッド１０６が周方向に回転するのを防いでいる。   As shown in FIG. 12, a projection 182 (second rotation restricting portion) is formed on the inner side surface of the inner tube 170. By engaging the protrusion 182 with the notch 178 of the joint pipe 118, the water discharge head 106 is prevented from rotating in the circumferential direction.

［第２実施形態］
図１３は、第２実施形態における吐水ヘッド１０６の分解斜視図である。
吐水ヘッド１０６は、外殻１２６、内管１２８、吐水口部材１３０、整流部材１３２に加えて内管１２８の一部としての緩衝部材１３４を含む。第２実施形態は、緩衝部材１３４を有する点以外は、第１実施形態と同様である。緩衝部材１３４は、内管１２８の端部に接続されるゴム製のスペーサであり、吐水ヘッド１０６の接続時に回転部１０４と当接する。緩衝部材１３４は外殻１２６の端面を覆う形状を有する。緩衝部材１３４は内管１２８と一体形成されてもよいし、内管１２８と接着されることで内管１２８と一体化させてもよい。第２実施形態においては、吐水ヘッド１０６の外殻１２６は水栓本体部１１２と直接接触することはなく、緩衝部材１３４を介して水栓本体部１１２と当接する。緩衝部材１３４は、その端面がテーパー面として形成されており、継手管１１８の外径拡大部１７４のテーパー面と当接する。図１４に第２実施形態における吐水ヘッド１０６の断面図、図１５に第２実施形態における吐水ヘッド１０６を水栓本体部１１２に取り付けた水栓１００ａの断面図を示す。いずれも、緩衝部材１３４が追加されている以外は図９，１０と同様である。浄水機能付きの場合も同様である。 [Second Embodiment]
FIG. 13 is an exploded perspective view of the water discharge head 106 in the second embodiment.
The water discharge head 106 includes a buffer member 134 as a part of the inner tube 128 in addition to the outer shell 126, the inner tube 128, the water discharge port member 130, and the flow regulating member 132. The second embodiment is the same as the first embodiment except that the buffer member 134 is provided. The buffer member 134 is a rubber spacer connected to the end portion of the inner tube 128, and comes into contact with the rotating portion 104 when the water discharge head 106 is connected. The buffer member 134 has a shape that covers the end surface of the outer shell 126. The buffer member 134 may be formed integrally with the inner tube 128, or may be integrated with the inner tube 128 by being bonded to the inner tube 128. In the second embodiment, the outer shell 126 of the water discharge head 106 does not come into direct contact with the faucet body 112, but comes into contact with the faucet body 112 through the buffer member 134. The buffer member 134 has an end surface formed as a tapered surface, and comes into contact with the tapered surface of the outer diameter enlarged portion 174 of the joint pipe 118. FIG. 14 is a cross-sectional view of the water discharge head 106 according to the second embodiment, and FIG. 15 is a cross-sectional view of the water tap 100a in which the water discharge head 106 according to the second embodiment is attached to the water tap main body 112. Both are the same as FIGS. 9 and 10 except that the buffer member 134 is added. The same applies to the case with a water purification function.

緩衝部材１３４はゴム製であるため、吐水ヘッド１０６の装着時において水栓本体部１１２を傷つけにくい。また、緩衝部材１３４によって境界面１０５（接合部分）が塞がれるため、吐水ヘッド１０６のがたつきを防止しやすくなる。   Since the buffer member 134 is made of rubber, it is difficult to damage the faucet body 112 when the water discharge head 106 is attached. In addition, since the boundary surface 105 (joining portion) is blocked by the buffer member 134, it becomes easy to prevent the water discharge head 106 from rattling.

図１６は、緩衝部材１３４の周辺の拡大斜視図である。
緩衝部材１３４は、外殻１２６の水栓本体部１１２側の端面をカバーする。緩衝部材１３４は、外殻１２６よりは弾性率の高い部材であってもよい。緩衝部材１３４の当接面１３６の当接幅Ｔは、少なくとも外殻１２６の厚みよりも大きい。本実施形態における回転部１０４の側面は曲面形状（円筒形状）を有するが、緩衝部材１３４の当接面１３６も回転部１０４の曲面形状と一致する形状に加工されている。このため、吐水ヘッド１０６と回転部１０４を隙間無く、スムーズな外観にて接続できる。 FIG. 16 is an enlarged perspective view of the periphery of the buffer member 134.
The buffer member 134 covers the end surface of the outer shell 126 on the faucet body 112 side. The buffer member 134 may be a member having a higher elastic modulus than the outer shell 126. The contact width T of the contact surface 136 of the buffer member 134 is at least larger than the thickness of the outer shell 126. In the present embodiment, the side surface of the rotating portion 104 has a curved surface shape (cylindrical shape), but the contact surface 136 of the buffer member 134 is also machined into a shape that matches the curved surface shape of the rotating portion 104. For this reason, the water discharge head 106 and the rotation part 104 can be connected with a smooth appearance without a gap.

更に、弾力性のある緩衝部材１３４を介して、吐水ヘッド１０６と回転部１０４を接続するため、吐水ヘッド１０６と水栓本体部１１２をいっそう隙間無く密着させることができる。また、当接幅Ｔを大きくすることで当接面１３６を拡大しているため、接続にともなう圧力が分散されやすく、吐水ヘッド１０６の接続によって回転部１０４に傷が付きにくくなる。   Furthermore, since the water discharge head 106 and the rotating part 104 are connected via the elastic buffer member 134, the water discharge head 106 and the faucet body 112 can be brought into close contact with each other. Further, since the contact surface 136 is enlarged by increasing the contact width T, the pressure accompanying the connection is easily dispersed, and the rotating portion 104 is hardly damaged by the connection of the water discharge head 106.

第１実施形態のように緩衝部材１３４を設置しない場合には、外殻１２６が回転部１０４（外径拡大部１７４）と直接当接または対向することになる。この場合にも、外殻１２６の端面を拡大することで、たとえば、端部において外殻１２６を肉厚にすることで接続にともなう圧力を小さくしてもよい。   When the buffer member 134 is not installed as in the first embodiment, the outer shell 126 directly contacts or faces the rotating portion 104 (outer diameter enlarged portion 174). Also in this case, the pressure associated with the connection may be reduced by enlarging the end face of the outer shell 126, for example, by thickening the outer shell 126 at the end.

以上、実施形態に基づいて、水栓１００の構造、特に、吐水ヘッド１０６，１４８と、水栓本体部１１２との接続構造を中心として説明した。
本実施形態によれば、吐水ヘッド１０６，１４８を水栓本体部１１２に着脱可能でありながら、吐水ヘッド１０６，１４８の外殻１２６，１６４のサイズを比較的自由に設定できる。吐水ヘッド１０６，１４８と水栓本体部１１２の境界面１０５が目立たないため、取替式でありながらすっきりとしたデザインを維持できる。また、切欠１７８と突起１８２を係合させることにより、吐水ヘッド１０６が回転方向にずれるのを防止している。 As described above, based on the embodiment, the structure of the faucet 100, particularly the connection structure between the water discharge heads 106 and 148 and the faucet main body 112 has been mainly described.
According to the present embodiment, the size of the outer shells 126 and 164 of the water discharge heads 106 and 148 can be set relatively freely while the water discharge heads 106 and 148 can be attached to and detached from the faucet body 112. Since the boundary surface 105 between the water discharge heads 106 and 148 and the faucet main body 112 is not conspicuous, a clean design can be maintained while being replaceable. Further, by engaging the notch 178 and the protrusion 182, the water discharge head 106 is prevented from shifting in the rotation direction.

以上、本発明をいくつかの実施の形態をもとに説明した。これらの実施の形態は例示であり、いろいろな変形および変更が本発明の特許請求範囲内で可能なこと、またそうした変形例および変更も本発明の特許請求の範囲にあることは当業者に理解されるところである。従って、本明細書での記述および図面は限定的ではなく例証的に扱われるべきものである。   The present invention has been described based on some embodiments. Those skilled in the art will understand that these embodiments are examples, and that various modifications and changes are possible within the scope of the claims of the present invention, and that such modifications and changes are also within the scope of the claims of the present invention. It is where it is done. Accordingly, the description and drawings herein are to be regarded as illustrative rather than restrictive.

本実施形態においては、浄水機能を持たない吐水ヘッド１０６と浄水機能を有する吐水ヘッド１４８の取り替えを想定して説明したが、本発明はこれに限られるものではない。たとえば、シャワー機能を持たない吐水ヘッドとシャワー機能を有する吐水ヘッドを交換してもよいし、ユーザの身体の大きさ（たとえば、大人と子ども）に合わせて長さの異なる吐水ヘッドを用意してもよい。また、腕時計のリストバンドを取り替えて気分を変えるときのように、機能に違いはなくてもデザインが違う吐水ヘッドに取り替えれば、キッチンの雰囲気を気軽に変化させることもできる。   In the present embodiment, the description has been made assuming the replacement of the water discharge head 106 having no water purification function and the water discharge head 148 having a water purification function, but the present invention is not limited to this. For example, a water discharge head that does not have a shower function and a water discharge head that has a shower function may be exchanged, or a water discharge head having a different length according to the size of a user's body (for example, an adult and a child) is prepared. Also good. Also, if you change your mood by changing the wristband of your wristwatch, you can easily change the atmosphere of the kitchen by replacing the spout head with a different design even if it has no difference in function.

本実施形態においては、吐水ヘッド１０６および回転部１０４はどちらも円筒形状であるとして説明したが、楕円や矩形など任意の断面形状を有する筒状部材であってもよいし、筒状ではない筐体であってもよい。継手管１１８はその根元部分に外径拡大部１７４が形成されてもよいが、形成されない場合にも本発明の基本的な効果は実現可能である。継手管１１８は、水栓本体部１１２に取り付けられる別部品であってもよい。吐水ヘッド１０６は装着時に継手管１１８の根元まで押し込まれる例を示したが、第１比較例や第２比較例のような分岐部１４６を有するタイプであっても本発明の主要構成は実現可能である。   In the present embodiment, the water discharge head 106 and the rotating unit 104 have been described as both cylindrical, but a cylindrical member having an arbitrary cross-sectional shape such as an ellipse or a rectangle may be used. It may be a body. The joint pipe 118 may be formed with the outer diameter enlarged portion 174 at the root portion, but the basic effect of the present invention can be realized even when the joint pipe 118 is not formed. The joint pipe 118 may be a separate part attached to the faucet main body 112. The example in which the water discharge head 106 is pushed down to the base of the joint pipe 118 at the time of mounting is shown. It is.

以上の記載から、下記の発明が認識される。
本発明のある態様における吐水ヘッドは、本体側面から突出する継手管を有する水栓本体部に着脱可能に接続される。吐水ヘッドは、継手管を収容する内管が外殻に挿入される二重管構造を有し、内管は、吐水口から外殻の端部まで延伸する。 The following invention is recognized from the above description.
The water discharge head in an aspect of the present invention is detachably connected to a faucet body having a joint pipe protruding from the side surface of the body. The water discharge head has a double tube structure in which an inner tube that accommodates a joint tube is inserted into an outer shell, and the inner tube extends from the water discharge port to the end of the outer shell.

内管と外殻の二重構造とし、しかも、内管が外殻の端部まで延伸するため、吐水ヘッドの強度が全域的に向上する。また、外殻の端部まで延伸する内管によって継手管を収容することで、内管と継手管の接合面積を大きくすることができるため、接合強度も向上させやすい。また、内管と外殻を分けて形成することで、複雑な形状の内管を形成しやすくなる。内管は外殻で隠蔽されるため、内管の製造にともなう影響が外観にあらわれにくくなる。また、内管を共通化し、外殻を多様化することで簡易にバリエーションを増やすことができる。外殻も特に接続部分等の内面構造の影響を受けにくく、比較的自由な形状を実現しやすい。   Since the inner tube and the outer shell have a double structure and the inner tube extends to the end of the outer shell, the strength of the water discharge head is improved over the entire area. Moreover, since the joint area of the inner pipe and the joint pipe can be increased by accommodating the joint pipe with the inner pipe extending to the end portion of the outer shell, the joint strength is easily improved. Further, by forming the inner tube and the outer shell separately, it becomes easy to form an inner tube having a complicated shape. Since the inner pipe is concealed by the outer shell, the influence associated with the production of the inner pipe is less likely to appear in the appearance. In addition, variations can be easily increased by sharing the inner tube and diversifying the outer shell. The outer shell is also not easily affected by the inner surface structure such as the connecting portion, and a relatively free shape can be easily realized.

外殻は樹脂メッキを施されてもよい。
外殻を樹脂で形成し、そこに樹脂メッキを施せば、軽量でありながら美観にすぐれた外殻を提供できる。樹脂メッキは、外殻の加工精度に影響を及ぼす可能性があるが、継手管と接合するのは外殻の端部まで延伸する内管であるため、外殻の樹脂メッキ加工が接合強度に影響を及ぼしにくく、がたつきにくい構成となる。 The outer shell may be resin-plated.
If the outer shell is made of resin and is plated with resin, it is possible to provide an outer shell that is lightweight but has a beautiful appearance. Resin plating may affect the processing accuracy of the outer shell, but since the inner pipe that extends to the end of the outer shell is joined to the joint pipe, the resin plating of the outer shell increases the bonding strength. It has a configuration that is less likely to affect and less likely to rattle.

継手管はその根元部分において外径が拡大されてもよい。吐水ヘッドは、少なくとも継手管の外径拡大部分の一部を内管が収容した状態で水栓本体部に装着されてもよい。   The outer diameter of the joint pipe may be enlarged at the root portion. The water discharge head may be attached to the faucet body in a state where at least a part of the outer diameter enlarged portion of the joint pipe is accommodated in the inner pipe.

本発明のある態様における水栓は、本体側面から突出する継手管を有する水栓本体部と、水栓本体部に着脱可能に取り付けられる吐水ヘッドを備える。
吐水ヘッドは、継手管を収容する内管が外殻に挿入される二重管構造を有する。内管は、吐水口から外殻の端部まで延伸する。 A faucet according to an aspect of the present invention includes a faucet body having a joint pipe projecting from the side of the body, and a water discharge head that is detachably attached to the faucet body.
The water discharge head has a double pipe structure in which an inner pipe that accommodates a joint pipe is inserted into an outer shell. The inner tube extends from the water outlet to the end of the outer shell.

１００ 水栓、 １０２ 吐水ハンドル、 １０４ 回転部、 １０５ 境界面、 １０６ 吐水ヘッド、 １０８ 支柱部、 １１０ 通水管、 １１２ 水栓本体部、 １１４ 支柱キャップ、 １１６ 操作突起、 １１８ 継手管、 １２０ 留め具、 １２２ 差込口、 １２４ 通水口、 １２６ 外殻、 １２８ 内管、 １３０ 吐水口部材、 １３２ 整流部材、 １３４ 緩衝部材、 １３８ 回転部、 １４０ 吐水ヘッド、 １４２ 継手管、 １４４ 境界面、 １４６ 分岐部、 １４８ 吐水ヘッド、 １５０ 第２Ｏリング、 １５２ 第１Ｏリング、 １５４ 第３Ｏリング、 １５５ 第４Ｏリング、 １５６ カートリッジ保持部、 １５８ 浄水カートリッジ、 １６０ 吐水部材、 １６２ 浄水ハンドル、 １６４ 外殻、 １６６ 第５Ｏリング、 １６８ 弁、 １７０ 内管、 １７２ 筒状部材、 １７４ 外径拡大部、 １７６ 先端、 １７８ 切欠、 １８０ 吐水ヘッド端面、 １８２ 突起、 １８４ 小収容部、 １８６ 中収容部、 １８８ 大収容部。   DESCRIPTION OF SYMBOLS 100 Water faucet, 102 Water discharging handle, 104 Rotating part, 105 Boundary surface, 106 Water discharging head, 108 Post part, 110 Water flow pipe, 112 Water faucet body part, 114 Post cap, 116 Operation protrusion, 118 Joint pipe, 120 Fastener, 122 outlet, 124 water inlet, 126 outer shell, 128 inner pipe, 130 water outlet member, 132 rectifying member, 134 buffer member, 138 rotating part, 140 water discharging head, 142 joint pipe, 144 boundary surface, 146 branching part, 148 Water discharge head, 150 2nd O-ring, 152 1st O-ring, 154 3rd O-ring, 155 4th O-ring, 156 Cartridge holding part, 158 Water purification cartridge, 160 Water discharge member, 162 Water purification handle, 164 Outer shell, 166 5th O-ring Grayed, 168 valve, 170 inner tube, 172 tubular members, 174 outer diameter enlarged portion, 176 tip 178 notched, 180 water discharge head end surface, 182 projection, 184 holding portion, in 186 accommodating portion 188 larger housing portion.

Claims (4)

本体側面から突出する継手管を有する水栓本体部に着脱可能に接続され、
前記継手管を収容する内管が外殻に挿入される二重管構造を有し、
前記内管は、吐水口から前記外殻の端部まで延伸することを特徴とする吐水ヘッド。 Removably connected to the faucet body having a joint pipe projecting from the side of the body,
An inner pipe that accommodates the joint pipe has a double pipe structure inserted into an outer shell;
The water discharge head, wherein the inner pipe extends from a water discharge port to an end of the outer shell. 前記外殻は樹脂メッキを施されることを特徴とする請求項１に記載の吐水ヘッド。   The water discharge head according to claim 1, wherein the outer shell is resin-plated. 前記継手管はその根元部分において外径が拡大されており、
少なくとも前記継手管の外径拡大部分の一部を前記内管が収容した状態で前記水栓本体部に装着されることを特徴とする請求項１または２に記載の吐水ヘッド。 The outer diameter of the joint pipe is enlarged at the root portion,
3. The water discharge head according to claim 1, wherein at least a part of the outer diameter enlarged portion of the joint pipe is attached to the faucet body in a state in which the inner pipe is accommodated. 4. 本体側面から突出する継手管を有する水栓本体部と、
前記水栓本体部に着脱可能に取り付けられる吐水ヘッドと、を備え、
前記吐水ヘッドは、前記継手管を収容する内管が外殻に挿入される二重管構造を有し、
前記内管は、吐水口から前記外殻の端部まで延伸することを特徴とする水栓。 A faucet body having a joint pipe projecting from the side of the body;
A water discharge head detachably attached to the faucet body, and
The water discharge head has a double pipe structure in which an inner pipe that accommodates the joint pipe is inserted into an outer shell,
The inner pipe extends from the water outlet to the end of the outer shell.
JP2015231043A 2015-09-15 2015-11-26 Faucet and water discharge head attached to the same Pending JP2017096031A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2015231043A JP2017096031A (en) 2015-11-26 2015-11-26 Faucet and water discharge head attached to the same
CN201680053242.4A CN108026717A (en) 2015-09-15 2016-08-24 Tap, the nozzle for being installed on tap and tap assemble method
EP16846211.7A EP3351695A4 (en) 2015-09-15 2016-08-24 Water faucet, spout head attached to water faucet, and water faucet assembly method
PCT/JP2016/074605 WO2017047340A1 (en) 2015-09-15 2016-08-24 Water faucet, spout head attached to water faucet, and water faucet assembly method
US15/922,207 US20180223509A1 (en) 2015-09-15 2018-03-15 Water faucet, spout head attached to water faucet, and water faucet assembly method

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