JP4468143B2 - Eccentric tube - Google Patents

Eccentric tube Download PDF

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JP4468143B2
JP4468143B2 JP2004322746A JP2004322746A JP4468143B2 JP 4468143 B2 JP4468143 B2 JP 4468143B2 JP 2004322746 A JP2004322746 A JP 2004322746A JP 2004322746 A JP2004322746 A JP 2004322746A JP 4468143 B2 JP4468143 B2 JP 4468143B2
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pipe
eccentric
main body
engaging means
eccentric tube
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JP2006132207A (en
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利明 西岡
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株式会社三栄水栓製作所
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Description

この発明は、湯水混合水栓の水栓本体と配管との間に接続される偏心管に関するものである。   The present invention relates to an eccentric tube connected between a faucet body of a hot and cold water mixing faucet and a pipe.

水栓本体と配管との間に接続される偏心管として、偏心管本体と、配管接続時には偏心管本体と一体に配管の軸まわりに回動する配管接続部材とを有し、配管接続部材を配管に接続固定した後には、配管の軸方向に沿って、偏心管本体を配管側とは反対方向の水栓本体側に移動させ、偏心管本体のみの前記軸まわりの回動を許容させ、それによって水栓本体に対する偏心管本体の位置合わせが行えるよう構成されたものがある（特許文献１参照）。
特許第３２９４８３０号公報 As an eccentric pipe connected between the faucet body and the pipe, it has an eccentric pipe main body and a pipe connection member that rotates around the axis of the pipe integrally with the eccentric pipe main body when the pipe is connected. After connecting and fixing to the pipe, move the eccentric pipe body to the faucet body side opposite to the pipe side along the axial direction of the pipe, allowing only the eccentric pipe body to rotate around the axis, There is one configured so that the eccentric tube body can be aligned with the faucet body (see Patent Document 1).
Japanese Patent No. 3294830

しかし、位置合わせ後において直ちに偏心管本体の接続部を水栓本体の接続部に締付ける作業を行う必要がある。すなわち、偏心管本体の接続部を水栓本体の接続部に対応する所定の位置に回動させても、この回動位置に水栓本体を維持する手段を持たないので、締付け前に偏心管本体から手を放すと偏心管本体は前記軸まわりに回動して前記所定の位置からずれることになり、再度微調整作業を行う必要がある。要するに、従来では、微調整して直ちに締付けなければならないという制約がある。   However, it is necessary to immediately tighten the connecting portion of the eccentric tube main body to the connecting portion of the faucet main body after alignment. That is, even if the connecting portion of the eccentric tube body is rotated to a predetermined position corresponding to the connecting portion of the faucet body, there is no means for maintaining the faucet body at this rotating position. When the hand is released from the main body, the eccentric tube main body rotates around the axis and deviates from the predetermined position, and it is necessary to perform fine adjustment again. In short, conventionally, there is a restriction that it is necessary to fine-tune and tighten immediately.

この発明は、上述の事柄に留意してなされたもので、その目的は、水栓本体に対する位置合わせ後に偏心管本体から手を放しても偏心管本体を一旦保持できてその後水栓本体に締付けることができる機構を有する偏心管を提供することを目的としている。   The present invention has been made in consideration of the above-mentioned matters. The purpose of the present invention is to temporarily hold the eccentric tube main body even if the hand is released from the eccentric tube main body after alignment with the faucet main body, and then tighten to the faucet main body. An object of the present invention is to provide an eccentric tube having such a mechanism.

上記目的を達成するために、この発明の偏心管は、湯水混合水栓の水栓本体と配管との間に接続される偏心管であって、環状の内周面に第１の係合手段が形成された筒状の開口部を上流側に有する偏心管本体と、前記開口部内に前記開口部と同軸に配置された状態で前記偏心管本体に固定される筒状体と、この筒状体および前記開口部間に同軸に介装され、前記第１の係合手段に係合する第２の係合手段を環状の外周面に有するとともに、前記第２の係合手段よりも上流側に配管に対する接続用ネジ部を有する筒状の配管接続部材とを備え、配管との接続時には、前記第１の係合手段と前記第２の係合手段との係合により、前記偏心管本体、筒状体および配管接続部材が一体となって配管の軸まわりに回動されるよう前記偏心管本体を常時下流側に付勢するスプリングを設け、水栓本体に対する位置合わせ時には、前記偏心管本体を前記スプリングの付勢力に抗して上流側に押圧することにより前記第１の係合手段と第２の係合手段との係合状態を解除し、前記配管接続部材は静止したままで前記偏心管本体を前記軸まわりに回動可能としてあり、前記第１の係合手段および第２の係合手段としてそれぞれセレーションを用い、更に、これらセレーションの形状をピッチの粗い歯数の少ないものにしたことを特徴とする。   In order to achieve the above object, an eccentric tube according to the present invention is an eccentric tube connected between a faucet body of a hot and cold water mixing faucet and a pipe, and has a first engaging means on an annular inner peripheral surface. An eccentric tube main body having a cylindrical opening formed on the upstream side, a cylindrical body fixed to the eccentric tube main body in a state of being arranged coaxially with the opening in the opening, and the cylindrical A second engagement means that is coaxially interposed between the body and the opening and engages with the first engagement means on the annular outer peripheral surface, and is upstream of the second engagement means. And a tubular pipe connecting member having a thread portion for connecting to the pipe, and when connecting to the pipe, the eccentric pipe main body is engaged by the engagement of the first engaging means and the second engaging means. The eccentric tube body is always lowered so that the tubular body and the pipe connecting member are integrally rotated around the axis of the pipe. A spring urging the side is provided, and at the time of positioning with respect to the faucet body, the eccentric pipe body is pushed upstream against the urging force of the spring to thereby cause the first engagement means and the second engagement The engagement state with the coupling means is released, and the eccentric pipe main body can be rotated around the axis while the pipe connection member remains stationary. As the first engagement means and the second engagement means, Each serration is used, and the shape of these serrations is characterized by having a coarse pitch and a small number of teeth.

セレーションはスプラインに比べて例えば偏心管のような比較的小さい軸径のものに使われ、例えば図５（Ａ）に示す偏心管本体２の環状の内周面ｍに形成される比較例としてのセレーション５’のように、一般にピッチが細かく歯数が多いものである。図５（Ｂ）、図５（Ｃ）に示すセレーション５’は、例えば３６個の歯（山）３０’を有するとともに、歯３０’，３０’間は細かなピッチＰ1 を有している。この比較例としてのセレーション５’では例えば直径が２４ｍｍの円の円周を３６等分する形で３６個の歯３０’が形成されている。一方、この発明において、例えば偏心管本体２の環状の内周面ｍに形成されるセレーション５の形状をピッチの粗い歯数の少ないものにしたとは、図３（Ｂ）、図３（Ｃ）に示すように、歯数（山の数）を少なくするために、隣接する歯３０，３０間のピッチＰが図５に示したセレーションにおける歯３０’，３０’間のピッチＰ1 に比べて大きく設定されていることを意味する。この発明の第１の係合手段としてのセレーション３０は、図３（Ｂ）、図３（Ｃ）ならびに図４（Ａ）、図４（Ｂ）に示されている。ピッチの粗い歯数の少ない例えば図３（Ｂ）、図３（Ｃ）に示すようなセレーション５は、例えば図５に示したセレーション５’の山３０’が円周に沿って一つ置きに削除された形に形成されている。また、図４（Ａ）、図４（Ｂ）に示すこの発明の第１の係合手段としてのセレーション５は、図５に示したセレーション５’の山３０’が円周に沿って二つ置きに削除された形に形成されている。一方、この発明の第２の係合手段としてのセレーション８は、図３（Ｂ）、図３（Ｃ）に示すように、第１のセレーション５と同一形状をなしており、第１のセレーション５と第２のセレーション８の形状をピッチの粗い歯数の少ないものにしたことにより、隣接する第１のセレーション５の歯（山）３０と第２のセレーション８の歯（山）３０ａ間に微調整可能な遊びが生じる程度のクリアランスＫを生じさせることができる。 The serration is used for a comparatively small shaft diameter such as an eccentric tube as compared with a spline, for example, as a comparative example formed on the annular inner peripheral surface m of the eccentric tube main body 2 shown in FIG. Like serration 5 ', the pitch is generally fine and the number of teeth is large. The serrations 5 ′ shown in FIGS. 5B and 5C have, for example, 36 teeth (crests) 30 ′ and a fine pitch P 1 between the teeth 30 ′ and 30 ′. . In this serration 5 ′ as a comparative example, for example, 36 teeth 30 ′ are formed by dividing the circumference of a circle having a diameter of 24 mm into 36 equal parts. On the other hand, in the present invention, for example, the shape of the serration 5 formed on the annular inner peripheral surface m of the eccentric tube main body 2 is made to have a small number of teeth with a coarse pitch as shown in FIGS. ), In order to reduce the number of teeth (number of peaks), the pitch P between the adjacent teeth 30 and 30 is compared with the pitch P 1 between the teeth 30 ′ and 30 ′ in the serration shown in FIG. It means that it is set large. The serration 30 as the first engagement means of the present invention is shown in FIGS. 3 (B), 3 (C), 4 (A), and 4 (B). For example, the serrations 5 shown in FIGS. 3B and 3C having a small number of teeth with coarse pitches, for example, the peaks 30 ′ of the serrations 5 ′ shown in FIG. It is formed into a deleted shape. Further, the serration 5 as the first engaging means of the present invention shown in FIGS. 4 (A) and 4 (B) has two peaks 30 ′ of the serration 5 ′ shown in FIG. 5 along the circumference. It is formed into a shape that has been deleted. On the other hand, the serration 8 as the second engaging means of the present invention has the same shape as the first serration 5 as shown in FIGS. 3B and 3C, and the first serration 5 and the shape of the second serration 8 having a coarse pitch and a small number of teeth, the tooth (crest) 30 of the adjacent first serration 5 and the tooth (crest) 30a of the second serration 8 are adjacent to each other. It is possible to generate a clearance K to such an extent that a play that can be finely adjusted occurs.

この発明では、第１の係合手段および第２の係合手段としてそれぞれセレーションを用い、更に、これらセレーションの形状をピッチの粗い歯数の少ないものにしたので、第１の係合手段のセレーションの歯（山）と、これに隣接する第２の係合手段のセレーションの歯（山）との間にクリアランスを設けることができ、偏心管本体の振り幅を前記クリアランスの分だけ比較例の場合より大きくできるので、微調整時において、偏心管本体をスプリングの付勢力に抗して上流側に押圧する動作を一回だけ行うだけで、後は偏心管本体を前記振り幅の範囲で回すことにより偏心管本体の水栓本体接続部と水栓本体の接続部との位置合わせができる。これにより、偏心管の位置合わせ作業を容易にできる。   In the present invention, serrations are used as the first engaging means and the second engaging means, respectively, and the serrations have a coarse pitch and a small number of teeth. A clearance can be provided between the tooth (crest) of the second engaging means and the tooth (crest) of the serration of the second engaging means adjacent thereto, and the swinging width of the eccentric tube main body can be increased by the amount of the clearance. Since it can be larger than the case, at the time of fine adjustment, the eccentric tube main body is only pressed once upstream against the biasing force of the spring, and then the eccentric tube main body is rotated within the range of the swing width. This makes it possible to align the faucet body connecting portion of the eccentric tube body and the connecting portion of the faucet body. Thereby, the alignment operation | work of an eccentric tube can be made easy.

以下、この発明の実施の形態を、図を参照しながら説明する。なお、それによってこの発明は限定されるものではない。   Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited thereby.

図１〜図３はこの発明の第１の実施の形態を示している。図１は、湯水混合水栓の設置状態を示し、図２は、偏心管本体と配管との接続を示し、図３は、偏心管本体の環状の内周面に形成されるセレーションとこれに係合するセレーションを示す。また、図２において、Ａは配管が位置する配管側、Ｂは水栓本体が位置する水栓本体側である。   1 to 3 show a first embodiment of the present invention. FIG. 1 shows the installation state of the hot and cold water mixing faucet, FIG. 2 shows the connection between the eccentric tube main body and the pipe, and FIG. 3 shows the serration formed on the annular inner peripheral surface of the eccentric tube main body. The engaging serration is shown. Moreover, in FIG. 2, A is the piping side where piping is located, B is the faucet body side where a faucet body is located.

図１〜図３において、１は、湯水混合水栓の水栓本体Ｓと、湯側および水側の各配管ｑとの間にそれぞれ接続される湯側および水側の各偏心管である。この偏心管１は、平面視クランク状の偏心管本体２〔図３（Ａ）参照〕と、この偏心管本体２に取付けられている筒状体３と、配管ｑとの接続時には、偏心管本体２および筒状体３と一体となって配管ｑの軸まわりに回動される筒状の配管接続部材４とを主として備えている。１３は吐水管、１４は水栓本体Ｓの長手方向における一端に設けた、温度調整部材で、湯水の吐水・止水ならびに湯水の流量を調整する。   1 to 3, reference numeral 1 denotes hot water and water side eccentric pipes connected between a faucet body S of a hot and cold water mixing faucet and hot water side and water side pipes q, respectively. The eccentric tube 1 is an eccentric tube at the time of connecting the pipe q with the crank-shaped eccentric tube main body 2 (see FIG. 3A), the cylindrical body 3 attached to the eccentric tube main body 2 and the pipe q. The main body 2 and the cylindrical body 3 are mainly provided with a cylindrical pipe connecting member 4 that is rotated around the axis of the pipe q. 13 is a water discharge pipe, 14 is a temperature adjusting member provided at one end in the longitudinal direction of the faucet body S, and adjusts the water discharge / stop water and the flow rate of hot water.

更に、前記偏心管本体２は、環状の内周面ｍに第１のセレーション（第１の係合手段）５が形成された筒状の開口部６を上流側に有する。また、前記偏心管本体２は、上流側から順次、前記開口部６、流量調整弁１６を有する流量調整部１７、下流側に行くにつれ流路が狭められている略筒状の連通部１８、水栓本体接続部２０を備えている。前記筒状体３は、偏心管本体２の取付け位置に雄ネジｒを有する。   Further, the eccentric tube body 2 has a cylindrical opening 6 having a first serration (first engagement means) 5 formed on the annular inner peripheral surface m on the upstream side. Further, the eccentric tube main body 2 includes, in order from the upstream side, the opening 6, the flow rate adjusting unit 17 having the flow rate adjusting valve 16, the substantially cylindrical communication unit 18 whose flow path is narrowed toward the downstream side, A faucet body connecting portion 20 is provided. The cylindrical body 3 has a male screw r at the mounting position of the eccentric tube main body 2.

また、前記筒状体３は、前記開口部６内に前記開口部６と同軸に配置された状態で前記偏心管本体２に固定されている。７は、開口部６の内周面ｍよりも内方に突出しており、開口部６の根元に設けられている小径部分である。すなわち、この小径部分７は、開口部６の内径よりも小さく設定された内径を有する。また、小径部分７は、筒状体３の前記雄ネジｒに螺合する雌ネジｅを内周に有する。   Further, the cylindrical body 3 is fixed to the eccentric tube main body 2 in a state of being disposed coaxially with the opening 6 in the opening 6. Reference numeral 7 denotes a small-diameter portion that protrudes inward from the inner peripheral surface m of the opening 6 and is provided at the base of the opening 6. That is, the small diameter portion 7 has an inner diameter set smaller than the inner diameter of the opening 6. The small-diameter portion 7 has a female screw e that is screwed into the male screw r of the cylindrical body 3 on the inner periphery.

前記配管接続部材４は、下流部分が筒状体３および前記開口部６間に同軸に介装されてなる。前記配管接続部材４は、前記第１のセレーション５に係合する第２のセレーション（第２の係合手段）８を環状の外周面ｎに有するとともに、前記第２のセレーション８よりも上流側に配管ｑに対する接続用ネジ部９を有する。前記第１のセレーション５と第２のセレーション８は同一形状であり、後述するような形状になっている。また、配管接続部材４は、第２のセレーション８に対応する内周面ｎ’の位置に一対のＯリング１１の嵌込み溝１１ａを軸Ｘの方向に沿って複数有するとともに、これら溝１１ａの直下流側に内周面ｎ’から内側に突出した環状のフランジ１２を有する。   The pipe connecting member 4 has a downstream portion interposed between the cylindrical body 3 and the opening 6 coaxially. The pipe connection member 4 has a second serration (second engagement means) 8 that engages with the first serration 5 on an annular outer peripheral surface n, and is upstream of the second serration 8. Has a connecting thread portion 9 for the pipe q. The first serration 5 and the second serration 8 have the same shape, and have shapes as described later. In addition, the pipe connecting member 4 has a plurality of fitting grooves 11a of a pair of O-rings 11 along the direction of the axis X at the position of the inner peripheral surface n ′ corresponding to the second serration 8, and the groove 11a An annular flange 12 protruding inward from the inner peripheral surface n ′ is provided on the immediately downstream side.

１０は、偏心管本体２を配管ｑの軸方向に沿う押圧力Ｆでもって付勢しているスプリングで、偏心管本体２の前記小径部分７と配管接続部材４の前記環状のフランジ１２間に設けられている。そして、スプリング１０内に筒状体３の下流部分が挿通されている。   A spring 10 biases the eccentric pipe body 2 with a pressing force F along the axial direction of the pipe q, and is between the small diameter portion 7 of the eccentric pipe body 2 and the annular flange 12 of the pipe connecting member 4. Is provided. The downstream portion of the cylindrical body 3 is inserted into the spring 10.

而して、第１のセレーション５と第２のセレーション８との係合により、偏心管本体２、筒状体３および配管接続部材４が一体となっているので、工具なしで偏心管１を配管ｒに接続できる。すなわち、偏心管１を締付け用の工具として用いることができるもので、接続用ネジ部９を配管ｒのネジ部に位置合わせさせながら、偏心管本体２、筒状体３および配管接続部材４が一体となっている図２に示す偏心管１を、この状態で、一体的に配管ｒの軸まわりに回動させることにより、接続用ネジ部９を配管ｒのネジ部に締付けることができ、偏心管本体２を配管に接続することができる。   Thus, the eccentric pipe body 2, the cylindrical body 3, and the pipe connecting member 4 are integrated by the engagement of the first serration 5 and the second serration 8, so that the eccentric pipe 1 can be removed without a tool. It can be connected to the pipe r. That is, the eccentric tube 1 can be used as a tightening tool, and the eccentric tube main body 2, the cylindrical body 3, and the pipe connecting member 4 are arranged while the connecting screw portion 9 is aligned with the screw portion of the pipe r. The integral eccentric tube 1 shown in FIG. 2 is integrally rotated around the axis of the pipe r in this state, so that the connecting screw portion 9 can be tightened to the screw portion of the pipe r. The eccentric pipe body 2 can be connected to the pipe.

次に、水栓本体接続部２０の微調整を行って水栓本体の接続部に対する位置合わせを行う場合について説明する。   Next, the case where fine adjustment of the faucet body connection part 20 is performed to align the faucet body with the connection part will be described.

この場合、偏心管本体２を配管ｒの軸方向に沿って配管側に移動させる。すなわち、偏心管本体２をスプリング１０の付勢力Ｆに抗して上流側に押圧すると偏心管本体２と筒状体３は一体になって配管側に移動する。これにより、第１のセレーション５と第２のセレーション８との係合状態が解除され、配管接続部材４は配管ｒへの締付けにより静止したままで、かつ、偏心管本体２を上流側に押圧力Ｆでもって押圧しながら、偏心管本体２を筒状体３と共に配管ｒの軸まわりに回動できる。   In this case, the eccentric pipe body 2 is moved to the pipe side along the axial direction of the pipe r. That is, when the eccentric tube main body 2 is pressed upstream against the urging force F of the spring 10, the eccentric tube main body 2 and the cylindrical body 3 move integrally to the piping side. As a result, the engagement state between the first serration 5 and the second serration 8 is released, the pipe connection member 4 remains stationary by tightening the pipe r, and the eccentric pipe body 2 is pushed upstream. While pressing with the pressure F, the eccentric pipe body 2 can be rotated around the axis of the pipe r together with the cylindrical body 3.

つまり、この位置合わせ作業では、偏心管本体２を上流側に押圧力Ｆでもって押圧しながら水栓本体接続部２０が水栓本体の接続部に対応する所定の位置にくるまで偏心管本体２を配管ｒの軸まわりに回動させるが、位置合わせ後、たとえ作業者が偏心管本体２から手を放しても、配管接続部材４は配管ｒに既に固定されており、スプリング１０による前記押圧力Ｆにより偏心管本体２とこれに一体の筒状体３を、前記所定の位置からずれることなく自然復帰させることができる。続いて、水栓本体接続部２０と水栓本体の接続部との接続を、水栓本体接続部２０に設けた袋ナット２０ａを締付けるだけで水栓本体と偏心管１とを接続できる。   That is, in this alignment operation, the eccentric tube main body 2 is pressed to the upstream side with the pressing force F until the faucet main body connecting portion 20 comes to a predetermined position corresponding to the connecting portion of the faucet main body. The pipe connection member 4 is already fixed to the pipe r even after the operator releases his hand from the eccentric pipe main body 2 after the alignment, and the pushing by the spring 10 is performed. The eccentric tube main body 2 and the cylindrical body 3 integrated therewith can be naturally returned by the pressure F without shifting from the predetermined position. Subsequently, the faucet body connecting part 20 and the faucet body connecting part can be connected to the eccentric pipe 1 simply by tightening the cap nut 20a provided on the faucet body connecting part 20.

このように、位置合わせ後、たとえ作業者が偏心管本体２から手を放して前記押圧力Ｆに抗した力を取り去っても、袋ナット２０ａの締付け前に一旦偏心管本体２を保持できるものであり、従来のように、偏心管本体が配管の軸まわりに回動して位置合わせの位置から偏心管本体がずれるといったことを回避でき、位置合わせ後に直ちに袋ナット２０ａを締付ける必要はなくなり締付け作業に自由度が生じることになる。   As described above, after the alignment, even if the operator releases his / her hand from the eccentric tube body 2 and removes the force against the pressing force F, the eccentric tube body 2 can be held once before the cap nut 20a is tightened. Thus, unlike the conventional case, it can be avoided that the eccentric tube main body rotates around the axis of the pipe and the eccentric tube main body shifts from the position of alignment, and it is not necessary to immediately tighten the cap nut 20a after the alignment. There will be a degree of freedom in the work.

ここまでは、上述した図５に示す比較例の場合と変わるところがない。   Up to this point, there is no difference from the case of the comparative example shown in FIG.

以下、この発明の特徴的構成について説明する。
すなわち、図３（Ｂ）、図３（Ｃ）に示すように、この発明では、セレーション５の歯３０の数（山の数）を少なくするために、隣接する歯３０，３０間のピッチＰが図５に示したセレーション５’における歯３０’，３０’間のピッチＰ1 に比べて大きく設定されている。なお、歯３０と歯３０’は同一形状である。この実施の形態では、例えば直径が２４ｍｍの円の円周を１８等分する形で１８個の歯３０が内周面ｍに形成されている。そして、セレーション５に係合するセレーション８もセレーション５と同一形状をなしており、歯３０ａ，３０ａ間に前記ピッチＰをしながら１８個の歯が環状の外周面ｎに形成されている。すなわち、隣接する歯３０，３０ａ同士がクリアランスＫを有する状態で位置することになることから、微調整時において、比較例の場合では、偏心管本体２をスプリング１０の付勢力Ｆに抗して上流側に押圧する動作を数回繰り返さなければ水栓本体接続部２０と水栓本体の接続部との厳密な微調整（位置合わせ）が行えない事態が発生するおそれがあるが、この実施の形態では、比較例のセレーションから歯（山）一個分だけ無くすことにより各セレーション５，８において偏心管本体２の振り幅をクリアランスＫの分だけ比較例の場合より大きくできる。そのため、微調整時において、偏心管本体２をスプリング１０の付勢力Ｆに抗して上流側に押圧する動作を一回だけ行うだけで、後は偏心管本体２を前記振り幅の範囲で回すことにより位置合わせができる。 The characteristic configuration of the present invention will be described below.
That is, as shown in FIGS. 3B and 3C, in the present invention, in order to reduce the number of teeth 30 of the serration 5 (the number of peaks), the pitch P between adjacent teeth 30 and 30 is reduced. Is set larger than the pitch P 1 between the teeth 30 ′ and 30 ′ in the serration 5 ′ shown in FIG. The teeth 30 and the teeth 30 ′ have the same shape. In this embodiment, for example, 18 teeth 30 are formed on the inner peripheral surface m so as to divide the circumference of a circle having a diameter of 24 mm into 18 equal parts. The serration 8 that engages with the serration 5 has the same shape as that of the serration 5, and 18 teeth are formed on the annular outer peripheral surface n with the pitch P between the teeth 30 a and 30 a. That is, since the adjacent teeth 30 and 30a are positioned with a clearance K, in the case of the comparative example, the eccentric tube main body 2 is resisted against the urging force F of the spring 10 at the time of fine adjustment. If the operation of pressing the upstream side is not repeated several times, there is a possibility that a situation in which strict fine adjustment (positioning) between the faucet body connecting portion 20 and the faucet body connecting portion cannot be performed may occur. In the embodiment, by removing only one tooth (mountain) from the serration of the comparative example, the swing width of the eccentric tube main body 2 can be increased by the clearance K in each of the serrations 5 and 8 compared to the comparative example. Therefore, at the time of fine adjustment, only the operation of pressing the eccentric tube body 2 upstream against the urging force F of the spring 10 is performed once, and thereafter the eccentric tube body 2 is rotated within the range of the swing width. Can be aligned.

図４は、比較例のセレーションから歯（山）二個分だけ無くすことにより各セレーション５，８において偏心管本体２の振り幅を比較例の場合よりさらに大きくできるようにしたこの発明の第２の実施の形態を示している。図４において、図１〜図３に示す符号と同一のものは、同一または相当物である。   FIG. 4 shows a second embodiment of the present invention in which only two teeth (ridges) are eliminated from the serration of the comparative example, so that the swing width of the eccentric tube body 2 can be further increased in each of the serrations 5 and 8 than in the comparative example. The embodiment is shown. 4, the same reference numerals as those shown in FIGS. 1 to 3 are the same or equivalent.

この場合は、隣接する歯３０，３０ａ間に設けたクリアランスＫを上記第１の実施の形態におけるクリアランスＫよりも大きくできる。すなわち、この実施の形態では、前記振り幅を第１の実施の形態よりも大きくでき、微調整をよりし易くできる。   In this case, the clearance K provided between the adjacent teeth 30 and 30a can be made larger than the clearance K in the first embodiment. That is, in this embodiment, the swing width can be made larger than in the first embodiment, and fine adjustment can be facilitated.

この発明の第１の実施の形態における使用状態を示す構成説明図である。It is composition explanatory drawing which shows the use condition in 1st Embodiment of this invention. 上記実施の形態を示す構成説明図である。It is structure explanatory drawing which shows the said embodiment. （Ａ）上記実施の形態で用いた偏心管本体を示す構成説明図である。（Ｂ）は、上記実施の形態で用いた第１、第２の係合手段としてのセレーションを示す図である。（Ｃ）は、上記実施の形態で用いた第１、第２の係合手段としてのセレーションを示す要部断面図である。(A) It is structure explanatory drawing which shows the eccentric pipe | tube main body used in the said embodiment. (B) is a diagram showing serrations as the first and second engaging means used in the embodiment. (C) is principal part sectional drawing which shows the serration as a 1st, 2nd engaging means used in the said embodiment. （Ａ）この発明の第２の実施の形態で用いた第１、第２の係合手段としてのセレーションを示す図である。（Ｂ）は、上記第２の実施の形態で用いた第１、第２の係合手段としてのセレーションを示す要部断面図である。(A) It is a figure which shows the serration as a 1st, 2nd engaging means used in 2nd Embodiment of this invention. (B) is principal part sectional drawing which shows the serration as the 1st, 2nd engaging means used in the said 2nd Embodiment. （Ａ）比較例の偏心管本体を示す構成説明図である。（Ｂ）は、比較例の第１の係合手段としてのセレーションを示す図である。（Ｃ）は、比較例の第１の係合手段としてのセレーションを示す要部断面図である。(A) It is composition explanatory drawing which shows the eccentric pipe | tube main body of a comparative example. (B) is a figure which shows the serration as a 1st engaging means of a comparative example. (C) is principal part sectional drawing which shows the serration as a 1st engaging means of a comparative example.

符号の説明Explanation of symbols

１ 偏心管
２ 偏心管本体
４ 配管接続部材
５ 第１のセレーション（第１の係合手段）
８ 第２のセレーション（第２の係合手段）
１０ スプリング
Ｆ 押圧力
DESCRIPTION OF SYMBOLS 1 Eccentric pipe 2 Eccentric pipe main body 4 Piping connection member 5 1st serration (1st engaging means)
8 Second serration (second engaging means)
10 Spring F Pressure

Claims (1)

湯水混合水栓の水栓本体と配管との間に接続される偏心管であって、環状の内周面に第１の係合手段が形成された筒状の開口部を上流側に有する偏心管本体と、前記開口部内に前記開口部と同軸に配置された状態で前記偏心管本体に固定される筒状体と、この筒状体および前記開口部間に同軸に介装され、前記第１の係合手段に係合する第２の係合手段を環状の外周面に有するとともに、前記第２の係合手段よりも上流側に配管に対する接続用ネジ部を有する筒状の配管接続部材とを備え、配管との接続時には、前記第１の係合手段と前記第２の係合手段との係合により、前記偏心管本体、筒状体および配管接続部材が一体となって配管の軸まわりに回動されるよう前記偏心管本体を常時下流側に付勢するスプリングを設け、水栓本体に対する位置合わせ時には、前記偏心管本体を前記スプリングの付勢力に抗して上流側に押圧することにより前記第１の係合手段と第２の係合手段との係合状態を解除し、前記配管接続部材は静止したままで前記偏心管本体を前記軸まわりに回動可能としてあり、前記第１の係合手段および第２の係合手段としてそれぞれセレーションを用い、更に、これらセレーションの形状をピッチの粗い歯数の少ないものにしたことを特徴とする偏心管。
An eccentric tube connected between a faucet body of a hot and cold water mixing faucet and a pipe, and having an upstream side of a cylindrical opening having a first engagement means formed on an annular inner peripheral surface A tube body, a cylindrical body fixed to the eccentric tube body in a state of being coaxially arranged in the opening with the opening, and coaxially interposed between the cylindrical body and the opening, A cylindrical pipe connecting member having a second engaging means for engaging with the first engaging means on the annular outer peripheral surface and having a thread portion for connecting to the pipe upstream of the second engaging means. When the pipe is connected, the eccentric pipe body, the tubular body and the pipe connecting member are integrated with each other by the engagement of the first engaging means and the second engaging means. A spring that constantly biases the eccentric tube main body to the downstream side so that it can be rotated around the axis is provided. At the time of positioning, the eccentric tube main body is pressed upstream against the biasing force of the spring to release the engagement state between the first engagement means and the second engagement means, and the pipe The eccentric member main body can be rotated around the axis while the connection member remains stationary, and serrations are used as the first engaging means and the second engaging means, respectively, and the shape of these serrations is further changed to pitch. An eccentric tube characterized in that it has a small number of coarse teeth.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107268727A (en) * 2016-03-30 2017-10-20 骊住株式会社 Eccentric pipe

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
JP4791917B2 (en) * 2006-09-07 2011-10-12 株式会社ケーブイケー Pipe fittings for mixing faucets
JP4431839B2 (en) * 2008-08-28 2010-03-17 株式会社カクダイ Single faucet
JP5409306B2 (en) * 2009-12-02 2014-02-05 株式会社カクダイ Single faucet
JP5964566B2 (en) * 2011-09-07 2016-08-03 株式会社三栄水栓製作所 Connecting pipe and mounting structure for hot and cold water mixing tap using the same
KR101654858B1 (en) * 2015-06-30 2016-09-06 이도경 Faucet coupling structure
KR102339493B1 (en) * 2017-03-27 2021-12-14 임헌덕 Eccentric type faucet connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107268727A (en) * 2016-03-30 2017-10-20 骊住株式会社 Eccentric pipe

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