JP3122840B2 - Faucet top - Google Patents
Faucet topInfo
- Publication number
- JP3122840B2 JP3122840B2 JP09252757A JP25275797A JP3122840B2 JP 3122840 B2 JP3122840 B2 JP 3122840B2 JP 09252757 A JP09252757 A JP 09252757A JP 25275797 A JP25275797 A JP 25275797A JP 3122840 B2 JP3122840 B2 JP 3122840B2
- Authority
- JP
- Japan
- Prior art keywords
- faucet
- valve seat
- foreign matter
- strainer
- seat surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Domestic Plumbing Installations (AREA)
Description
【0001】[0001]
【発明の属する技術分野】この発明は水栓こまに関し、
特に単水栓若しくは2ハンドルタイプの湯水混合水栓に
対し好適に用いられる。TECHNICAL FIELD The present invention relates to a faucet top,
Particularly, it is suitably used for a single faucet or a two-handle type hot / cold faucet.
【0002】[0002]
【従来の技術】水栓こまは、例えば、単水栓若しくは2
ハンドルタイプの湯水混合水栓等に対して広く用いられ
ている。2. Description of the Related Art A faucet top is, for example, a single faucet or
It is widely used for handle-type hot-water mixing faucets and the like.
【0003】[0003]
【発明が解決しようとする課題】しかし、従来の水栓こ
までは以下のような問題を有している。即ち、水栓の内
部には、給水源若しくは給湯源としての配管等より、異
物(例えば、配管の施工時から残留していた切粉、砂
等)が流れ込むことがある。このような異物の浸入があ
っても、図8(a)に示すように、水栓こま10のリフ
ト量Aが十分で、こまパッキン12と、弁座面26との
間に十分な空間幅が存在すれば、この異物Gは両者1
2、26の間を通り抜けることが容易である。However, the conventional faucet has the following problems. That is, foreign matter (for example, chips, sand, and the like remaining from the time of pipe installation) may flow into the faucet from a pipe or the like serving as a water supply source or a hot water supply source. Even if such foreign matter has entered, as shown in FIG. 8A, the lift amount A of the faucet top 10 is sufficient, and a sufficient space width is provided between the top packing 12 and the valve seat surface 26. Is present, this foreign matter G
It is easy to pass between 2 and 26.
【0004】一方、図8(b)に示すように、水栓こま
10のリフト量Aが僅かな場合には、この異物Gがこま
パッキン12と、弁座面26との間に挟まることがあ
る。この状態で水栓を止水状態にしようとすれば、この
異物Gが潰されながら弁座面26に付着することがあ
る。そして、異物Gがある程度の大きさを有する場合
(例えば、直径約0.3mm以上の場合)、図8(c)
に示すように、この付着した異物Gの影響で、こまパッ
キン12を弁座面26に密着させることが困難となり、
水漏れ等の不具合を生ずることがある。以上のような事
情より、このような不具合を回避できる水栓こまの出現
が望まれている。On the other hand, as shown in FIG. 8B, when the lift amount A of the faucet top 10 is small, this foreign matter G may be caught between the top packing 12 and the valve seat surface 26. is there. If the faucet is set to be in the water-stop state in this state, the foreign matter G may adhere to the valve seat surface 26 while being crushed. When the foreign matter G has a certain size (for example, when the diameter is about 0.3 mm or more), FIG.
As shown in (1), it is difficult to bring the top packing 12 into close contact with the valve seat surface 26 due to the influence of the attached foreign matter G,
Problems such as water leakage may occur. Under the circumstances described above, the emergence of a faucet top that can avoid such problems is desired.
【0005】本発明は前記観点に鑑みてなされたもので
あり、好ましくないサイズの異物を弁座部に付着させな
いようにして、水漏れ等の不具合を生じ難くした水栓こ
まを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above viewpoints, and an object of the present invention is to provide a faucet top in which undesired foreign matters are prevented from adhering to a valve seat portion and in which problems such as water leakage hardly occur. Aim.
【0006】[0006]
【課題を解決するための手段】ここで、本明細書におい
て、特許請求の範囲の欄に記載しない他の発明(以下、
「参考発明」という。)の水栓こまとしては、水栓に設
けられた弁座部の開閉を行う水栓こまであって、こまパ
ッキンの作用面に、前記弁座部の連通孔内に遊挿可能な
突出部を設け、この突出部の突出長Cを、この突出部の
外周面と前記連通孔の内周面との間の隙間幅Bよりも大
きくしたことを特徴とする水栓こまを挙げることができ
る。本参考発明によると、水栓こまのリフト量Aが突出
長Cを越えない範囲では、突出部が連通孔内に遊挿され
た状態になり、連通孔の流路幅が隙間幅Bの大きさに絞
られる(図2及び3参照)。一方、水栓こまのリフト量
Aが突出長Cを越えた場合に、突出部が連通孔から抜け
出る(図4参照)。このとき、こまパッキン(主に、周
縁側)と、弁座部(特に弁座面)の距離は隙間幅Bより
も大きくなる。Means for Solving the Problems Here, in this specification,
Therefore, other inventions not described in the claims (hereinafter referred to as “claims”)
It is referred to as "reference invention." The faucet frame of the present invention is a faucet frame for opening and closing a valve seat provided on the faucet, and a projecting portion which can be loosely inserted into a communication hole of the valve seat on the working surface of the top packing. the provided a protruding length C of the projecting portion, it can be mentioned faucet frame, characterized in that larger than the gap width B between the inner circumferential surface of the outer peripheral surface and the passage of the projecting portion
You . According to the present invention, when the lift amount A of the faucet top does not exceed the protruding length C, the protruding portion is loosely inserted into the communication hole, and the flow passage width of the communication hole becomes larger than the gap width B. (See FIGS. 2 and 3). On the other hand, when the lift amount A of the faucet top exceeds the protruding length C, the protruding portion comes out of the communication hole (see FIG. 4). At this time, the distance between the top packing (mainly on the peripheral side) and the valve seat (particularly, the valve seat surface) is larger than the gap width B.
【0007】従って、本参考発明の水栓こまによると、
隙間幅Bを弁座部に付着させたくない異物の大きさを基
準に設定することで、このような異物の弁座部への付着
を確実に防止できる。例えば、直径0.5mm程度の異
物の付着を防止したい場合には、隙間幅Bを0.5mm
程度とし、突出長Cをこれよりも大きな値とすればよ
い。このとき、リフト量Aが突出長Cを越えない範囲で
は、直径0.5mm程度の異物は突出部と連通孔の間の
隙間に止められるか、突出部の下面側に止められるた
め、こまパッキンと、弁座面との間に到達しない。この
ため、水栓を止水状態にしても、弁座面にこの異物が付
着することはない。一方、リフト量Aが突出長Cを越え
ると、突出部が連通孔から抜け出ると共に、こまパッキ
ンと弁座面の距離が0.5mmを越える。しかも、流路
幅を絞られていた連通孔が本来の流路幅となり、この孔
を通過する湯水の流量が一気に増大する。このため、直
径0.5mm程度の異物はこまパッキンと、弁座面の間
を一気に通過する。このように、本参考発明の水栓こま
によれば、リフト量Aの多少に係わらず、特定のサイズ
の異物の弁座部(特に弁座面)への付着を確実に回避で
きる。Therefore, according to the faucet top of the present invention ,
By setting the gap width B on the basis of the size of foreign matter that the user does not want to adhere to the valve seat, it is possible to reliably prevent such foreign matter from adhering to the valve seat. For example, when it is desired to prevent adhesion of a foreign matter having a diameter of about 0.5 mm, the gap width B is set to 0.5 mm.
And the protrusion length C may be set to a larger value. At this time, as long as the lift amount A does not exceed the protrusion length C, the foreign matter having a diameter of about 0.5 mm is stopped in the gap between the protrusion and the communication hole or is stopped on the lower surface side of the protrusion. And does not reach the valve seat surface. Therefore, even when the faucet is in the water-stop state, the foreign matter does not adhere to the valve seat surface. On the other hand, when the lift amount A exceeds the protruding length C, the protruding portion comes out of the communication hole, and the distance between the top packing and the valve seat surface exceeds 0.5 mm. In addition, the communication hole whose flow path width has been narrowed becomes the original flow path width, and the flow rate of hot water passing through this hole increases at a stretch. Therefore, the foreign matter having a diameter of about 0.5 mm passes between the top packing and the valve seat at a stretch. As described above, according to the faucet top of the present invention, it is possible to reliably prevent foreign matters of a specific size from adhering to the valve seat portion (particularly, the valve seat surface) regardless of the lift amount A.
【0008】また、本参考発明の水栓こまによると、こ
の特定のサイズを越える一定範囲の異物も、その挙動が
制御される。例えば、前述のように、隙間幅Bが0.5
mm程度の場合に、直径0.6mm程度の異物は、リフ
ト量Aが突出長Cを0.1mm弱だけ越えたとき、突出
部の下面の周縁部と、弁座面の内側の周縁部に邪魔をさ
れ、連通孔内に止まった状態となる(図4の異物gを参
照)。従って、この状態のまま水栓を止水状態にする
と、この大型の異物は突出部の下面に押されて弁座面と
遠ざかるため、弁座面にこの異物が付着することはな
い。一方、リフト量Aが更に大きくなると、突出部の下
面の周縁部と、弁座面の内側の周縁部の距離が約0.6
mmを越え、しかもこまパッキンと弁座面の距離がこの
周縁部間の距離よりも略突出長Cの分だけ、大きくなる
ため、この大型の異物も、こまパッキンと、弁座面の間
を容易に通過するからである。尚、実際の異物の形状は
円形に限らないが、本明細書においては、説明の便宜
上、異物の大きさを直径で示す。Further, according to the faucet top of the present invention , the behavior of a foreign substance in a certain range exceeding this specific size is also controlled. For example, as described above, the gap width B is 0.5
In the case where the lift amount A exceeds the protrusion length C by less than 0.1 mm, the foreign matter having a diameter of about 0.6 mm is attached to the periphery of the lower surface of the protrusion and the periphery of the valve seat surface. It is obstructed and stops in the communication hole (see foreign matter g in FIG. 4). Therefore, if the faucet is brought into the water-stop state in this state, the large foreign matter is pushed by the lower surface of the projection and moves away from the valve seat surface, so that the foreign matter does not adhere to the valve seat surface. On the other hand, when the lift amount A further increases, the distance between the peripheral edge of the lower surface of the protruding portion and the peripheral edge inside the valve seat surface becomes about 0.6.
mm, and since the distance between the top packing and the valve seat surface is larger than the distance between the peripheral edges by the length of the protrusion C, the large foreign matter can also be removed between the top packing and the valve seat surface. Because it passes easily. The actual shape of the foreign matter is not limited to a circle, but in this specification, the size of the foreign matter is indicated by a diameter for convenience of explanation.
【0009】本参考発明において、「隙間幅B」の具体
的な値は、挙動を規制したい異物の大きさに応じて自由
に選択できる。また、本参考発明の水栓こまの設置環境
等を考慮して選択するのも有効である。例えば、本参考
発明の水栓こまの上流側にストレーナを配置する場合に
は、「隙間幅B」をこのストレーナの網目幅よりも小さ
くするのが有効である。この場合、ストレーナを通過し
たが、依然として好ましくないサイズの異物(例えば、
ストレーナの網目幅が0.5mm前後の場合に、直径
0.3〜0.5mm程度の異物)を、本参考発明の水栓
こまで処理することができるからである。この場合、本
参考発明の水栓こまは、ストレーナとの共同作業で、好
ましくないサイズの異物を処理することになる。また、
本参考発明の水栓こまの上流側にストレーナを配置しな
い場合には、「隙間幅B」をストレーナの一般的な網目
幅(例えば、0.5mm前後)と略等しい値や、これよ
りも小さな値(例えば、0.3〜0.5mm程度)とす
ることができる。この場合、本参考発明の水栓こまが主
体となり好ましくないサイズの異物を処理することにな
る。In the present invention , a specific value of the "gap width B" can be freely selected according to the size of the foreign matter whose behavior is to be restricted. It is also effective to select the faucet top of the present invention in consideration of the installation environment and the like. For example, the present reference
When a strainer is arranged on the upstream side of the faucet top of the present invention, it is effective to make the "gap width B" smaller than the mesh width of the strainer. In this case, foreign matter that has passed through the strainer but is still of an undesirable size (for example,
This is because when the mesh width of the strainer is about 0.5 mm, the foreign matter having a diameter of about 0.3 to 0.5 mm) can be treated to the faucet of the present invention . In this case, the book
The faucet top of the reference invention, in cooperation with the strainer, will treat foreign matter of undesired size. Also,
When the strainer is not arranged on the upstream side of the faucet top of the present invention , the “gap width B” is set to a value substantially equal to the general mesh width of the strainer (for example, about 0.5 mm) or smaller. Value (for example, about 0.3 to 0.5 mm). In this case, the faucet top of the present invention is mainly used to process foreign matter having an undesired size.
【0010】尚、本参考発明の水栓こまでは、「隙間幅
B」よりも小さな異物の挙動を制御できないことがあ
る。例えば、「隙間幅B」が0.3mm程度の場合に
は、直径0.3mm未満の異物は突出部と連通孔の間の
隙間に到達し易い。そして、水栓こまのリフト量Aが
0.3mm未満の微量な場合には、水栓を止水状態にす
ると、この異物が弁座面に付着することがあるからであ
る。しかしながら、このような微小な異物が弁座面に付
着したとしても、水漏れの原因となり難いと考えられる
ため、不具合を生ずることは殆どない。また、本参考発
明の水栓こまにおいて、通常、「突出長C」の上限値
は、リフト量Aの最大量よりも小さな値とされる。更
に、前記「連通孔」は、水栓に設けられた隣接する2
室、即ち、本参考発明の水栓こまの働きで遮断状態とさ
れたり、連続状態とされる2室を連通させる孔であり、
一般に、弁座面に取り囲まれた状態に設けられる。Incidentally, the behavior of a foreign substance smaller than the "gap width B" may not be controlled until the faucet of the present invention . For example, when the “gap width B” is about 0.3 mm, the foreign matter having a diameter of less than 0.3 mm easily reaches the gap between the protrusion and the communication hole. If the lift amount A of the faucet top is a very small value of less than 0.3 mm, the foreign matter may adhere to the valve seat surface when the faucet is stopped. However, even if such minute foreign matter adheres to the valve seat surface, it is considered that it is unlikely to cause water leakage, so that there is almost no problem. In addition, this reference departure
In a bright faucet top, the upper limit value of the “projection length C” is usually smaller than the maximum value of the lift amount A. Further, the "communication hole" is provided with two adjacent holes provided in the faucet.
Chamber, that is, a hole that is cut off by the function of the faucet top of the present invention, or that connects two chambers that are in a continuous state,
Generally, it is provided in a state surrounded by a valve seat surface.
【0011】請求項1の水栓こまは、水栓に設けられた
弁座部の開閉を行う水栓こまであって、こまパッキンの
作用面に、前記弁座部の連通孔内に遊挿可能なストレー
ナを設けたことを特徴とする。本発明によると、こまパ
ッキンの作用面に設けられたストレーナを用いて、好ま
しくないサイズの異物を取り除くこと等ができる。従っ
て、参考発明と同様に、このような異物の弁座部への付
着を確実に防止できる。また、本発明では、ストレーナ
が水栓こまと一体であるため、水栓こまの上流側に別体
のストレーナを敢て配置する必要がない。更に、取り扱
いの容易な水栓こまを脱着するだけで、同時にストレー
ナも脱着されるため、水栓本体の内部や配管内等に設け
られる別体のストレーナに比べ、その保守、点検が容易
である。このため、主婦、子供等にとっても、ストレー
ナの清掃、取り換え等が容易である。According to a first aspect of the present invention, there is provided a faucet top for opening and closing a valve seat provided on a faucet, wherein the faucet is freely inserted into a communication hole of the valve seat on a working surface of a top packing. It is characterized by providing a possible strainer. ADVANTAGE OF THE INVENTION According to this invention, foreign substances of an undesired size can be removed using the strainer provided in the working surface of the top packing. Therefore, similarly to the reference invention , it is possible to reliably prevent such foreign matter from adhering to the valve seat. Further, in the present invention, since the strainer is integrated with the faucet frame, there is no need to dare to arrange a separate strainer upstream of the faucet frame. Furthermore, since the strainer is also detached simply by attaching and detaching the faucet top which is easy to handle, the maintenance and inspection are easier than the separate strainer provided inside the faucet main body or in the piping. . Therefore, it is easy for housewives, children, and the like to clean and replace the strainer.
【0012】[0012]
【発明の実施の形態】以下、この発明の実施の形態を説
明する。 (1)実施の形態1 本実施の形態では、図1〜4を用いて参考発明の水栓こ
まの一具体例を説明する。この水栓こま10は、図1に
示すように、所定の水栓(単水栓、2ハンドルタイプの
湯水混合水栓等)20に適用される落しこま(普通こ
ま)である。先ず、この水栓20について簡単に説明す
る。この水栓20の内部には、給水管若しくは給湯管に
連絡された導入室21と、吐水管に連絡された排出室2
2と、この両室21、22を連通する連通孔23とが設
けられている。また、連通孔23の上端側が弁座部25
とされ、この弁座部25の上面が略リング状の弁座面2
6とされている。更に、弁座部25の略真上の箇所は、
内面に雌ねじ部の設けられたスピンドル装着部27とさ
れている。そして、このスピンドル装着部27には、そ
の雌ねじ部に雄ねじ部を螺合させ、上下に進退可能とさ
れたスピンドル28が装着されている。また、スピンド
ル28の下端側には、挿入穴29が設けられている。Embodiments of the present invention will be described below. (1) Embodiment 1 In this embodiment, a specific example of a faucet top according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the faucet top 10 is a drop top (normal top) applied to a predetermined faucet (single faucet, two-handle type hot / cold water faucet, etc.) 20. First, the faucet 20 will be briefly described. Inside the faucet 20, there are an introduction chamber 21 connected to a water supply pipe or a hot water supply pipe, and a discharge chamber 2 connected to a water discharge pipe.
2 and a communication hole 23 communicating the two chambers 21 and 22 are provided. Further, the upper end side of the communication hole 23 is the valve seat 25.
The upper surface of the valve seat portion 25 has a substantially ring-shaped valve seat surface 2.
6. Further, the position almost directly above the valve seat 25 is
The spindle mounting portion 27 has a female screw portion provided on the inner surface. The spindle mounting portion 27 is provided with a spindle 28 having a female screw portion and a male screw portion screwed thereto, and capable of moving up and down. An insertion hole 29 is provided at the lower end of the spindle 28.
【0013】また、この水栓20の導入室21よりも上
流側には、網目幅が約0.5mmのストレーナ(図示を
省略)が配置されている。従って、水栓20の上流側か
ら連通孔23に流れ着く異物は、概ね、直径0.5mm
以下のものとされる。一方、水栓こま10は、スピンド
ル28の下端側に配置され、上下に進退しながら弁座部
25の開閉を行う。そして、この水栓こま10は、図1
に示すように、こま台11と、こまパッキン12と、突
出部15とを備えている。このうち、こま台(例えば、
金属製)11は、スピンドル28の挿入穴29に遊びを
もった状態で挿入可能な突起16を上方に突出させてい
る。A strainer (not shown) having a mesh width of about 0.5 mm is disposed upstream of the introduction chamber 21 of the faucet 20. Therefore, the foreign matter flowing into the communication hole 23 from the upstream side of the faucet 20 is approximately 0.5 mm in diameter.
It is as follows. On the other hand, the faucet top 10 is arranged on the lower end side of the spindle 28 and opens and closes the valve seat 25 while moving up and down. This faucet top 10 is shown in FIG.
As shown in FIG. 1, a top table 11, a top packing 12, and a protrusion 15 are provided. Of these, the top (for example,
The metal (11) has a protrusion 16 that can be inserted upward with play in the insertion hole 29 of the spindle 28.
【0014】また、こまパッキン(例えば、ゴム製)1
2は、弁座面26に着座可能な略円板状の外形を備え、
その上面をこま台11の下面に密着固定させている。更
に、突出部(例えば、樹脂製)15は、こまパッキン1
2の下面(作用面)から略円板状に垂下している。ま
た、この突出部15の軸心は、こまパッキン12の軸心
に位置合わせされている。更に、この突出部15の外径
は連通孔23の内径よりも約0.6mm小さい。このた
め、突出部15は連通孔23内に遊挿可能とされ、その
遊挿時における突出部15の外周面と、連通孔23の内
周面との間の隙間幅Bは約0.3mmとされている。ま
た、突出部15の突出長Cは、約1.2mmとされてい
る。Further, a top packing (for example, made of rubber) 1
2 has a substantially disk-shaped outer shape that can be seated on the valve seat surface 26;
The upper surface is tightly fixed to the lower surface of the top table 11. Further, the projecting portion (for example, made of resin) 15 is
2 hangs in a substantially disc shape from the lower surface (working surface). The axis of the projection 15 is aligned with the axis of the top packing 12. Further, the outer diameter of the protrusion 15 is smaller than the inner diameter of the communication hole 23 by about 0.6 mm. For this reason, the projecting portion 15 can be loosely inserted into the communication hole 23, and the gap width B between the outer peripheral surface of the projecting portion 15 and the inner peripheral surface of the communication hole 23 at the time of the loose insertion is about 0.3 mm. It has been. The protruding length C of the protruding portion 15 is about 1.2 mm.
【0015】尚、本水栓こま10の各構成部材間(11
及び12、12及び15)の連結方法は特に問わない。
例えば、こま台11の下面の中心より、雄ねじ部を垂下
させると共に、こまパッキン12及び突出部15の中心
部に挿通孔を設け、これらの挿通孔に雄ねじ部を挿通し
た後に、雄ねじ部の下端に締付用のナットを螺合して連
結することができる。また、この締付用のナットの外形
を略円筒状とし、このナットにより突出部15を構成し
てもよい。更に、各構成部材11、12、15のうちの
2つ以上を一体品とすることもできる。また、本水栓こ
ま10は、突起16をスピンドル28の挿入穴29に遊
挿した状態で、水栓20に配置される。そして、スピン
ドル28と共に下降し、こまパッキン12の下面(作用
面)の周縁側を弁座面26に密着させ、弁座部25を閉
鎖する。一方、スピンドル28を上昇させると、水栓こ
ま10の下面側が導入室21からの流体圧を受けるた
め、上昇して弁座部25を解放する。It should be noted that between the constituent members of the faucet top 10 (11
And 12, 12, and 15) are not particularly limited.
For example, the male screw portion is hung down from the center of the lower surface of the top table 11, and insertion holes are provided in the center portions of the top packing 12 and the protruding portion 15, and after the male screw portions are inserted into these insertion holes, the lower end of the male screw portion Can be connected by screwing a nut for tightening. Further, the outer shape of the nut for tightening may be substantially cylindrical, and the protrusion 15 may be constituted by the nut. Further, two or more of the constituent members 11, 12, and 15 may be integrated. The faucet top 10 is disposed on the faucet 20 with the protrusion 16 loosely inserted into the insertion hole 29 of the spindle 28. Then, it descends together with the spindle 28 to bring the peripheral edge of the lower surface (working surface) of the top packing 12 into close contact with the valve seat surface 26 and close the valve seat portion 25. On the other hand, when the spindle 28 is raised, the lower surface side of the faucet frame 10 receives the fluid pressure from the introduction chamber 21, so that the valve seat 25 is released by rising.
【0016】次に、本水栓こま10の機能を図2〜4を
用いて説明する。先ず、図2に示すように、水栓こま1
0のリフト量Aが突出長Cを下まわる場合には、連通孔
23の流路幅が0.3mm程度に絞られるため、直径
0.3mm程度の異物Gは、突出部15と連通孔23の
間の隙間や、突出部15の下面側に止められる。従っ
て、このように、リフト量Aが僅かな場合には、この異
物Gは弁座面26の上方に到達しないため、水栓20を
止水状態にしても、この異物Gが弁座面26に付着する
ことはない。また、この異物よりも微小な異物(例え
ば、直径0.2mm前後)が連通孔23に到達し、しか
もリフト量Aがこの微小な異物の直径程度の量の場合
に、この異物は弁座面26に付着する可能性がある。し
かしながら、この微小な異物が弁座面26に付着したと
しても、水漏れの原因となり難いと考えられるため、不
具合を生ずることは殆どない。また、実際の水栓の使用
状況を考慮すると、リフト量Aが0.3mm未満となる
ことは殆どないため、この微小な異物が弁座面26に付
着することは殆どないと考えられる。Next, the function of the faucet top 10 will be described with reference to FIGS. First, as shown in FIG.
When the lift amount A of 0 is less than the protruding length C, the flow passage width of the communication hole 23 is reduced to about 0.3 mm. And the lower surface of the protrusion 15. Therefore, when the lift amount A is small, the foreign matter G does not reach above the valve seat surface 26. Therefore, even when the faucet 20 is in the water stopped state, the foreign matter G is not removed from the valve seat surface 26. Does not adhere to Further, when a foreign matter (for example, a diameter of about 0.2 mm) smaller than the foreign matter reaches the communication hole 23 and the lift amount A is about the diameter of the fine foreign matter, the foreign matter is removed from the valve seat surface. 26 may be attached. However, even if this minute foreign matter adheres to the valve seat surface 26, it is considered that it is unlikely to cause water leakage, so that there is almost no problem. Further, considering the actual use condition of the faucet, since the lift amount A is hardly less than 0.3 mm, it is considered that this minute foreign matter hardly adheres to the valve seat surface 26.
【0017】また、図3に示すように、水栓こま10の
リフト量Aが突出長Cと略等しくなった場合、直径0.
3mm程度の異物Gは、突出部15の下面の周縁部と、
弁座面26の内側の周縁部に邪魔をされ、連通孔26内
に止まった状態となる。この図3に示す状態から水栓を
止水状態すると、この異物Gは突出部15に押され、弁
座面26から遠ざかるため、この異物Gは弁座面26に
付着しない。一方、図4に示すように、水栓こま10の
リフト量Aが突出長Cを越えると、突出部15が連通孔
23を抜け出る。そして、突出部15の下面の周縁部
と、弁座面26の内側の周縁部の間隔d(間隔Dとして
近似してもよい。)が、0.3mmよりも大きくなる。
しかも、こまパッキン12の下面と、弁座面26との間
隔(リフト量Aに等しい。)が、この異物Gの大きさを
越える。更に、連通孔23の流路幅が本来の大きさとな
り、湯水の流量が一気に増す。従って、異物Gは、こま
パッキン12の下面と、弁座面26との間を一気に通過
するため、図4に示す状態から止水状態にしても、異物
Gは弁座面26に付着しない。As shown in FIG. 3, when the lift amount A of the faucet top 10 becomes substantially equal to the protruding length C, the diameter of the faucet top 10 becomes equal to 0.3.
The foreign matter G of about 3 mm is formed on the periphery of the lower surface of the protrusion 15,
The inner peripheral edge of the valve seat surface 26 is obstructed, and is stopped in the communication hole 26. When the faucet is stopped from the state shown in FIG. 3, the foreign matter G is pushed by the protrusion 15 and moves away from the valve seat surface 26, so that the foreign matter G does not adhere to the valve seat surface 26. On the other hand, as shown in FIG. 4, when the lift amount A of the faucet top 10 exceeds the protrusion length C, the protrusion 15 exits the communication hole 23. Then, the distance d (may be approximated as the distance D) between the peripheral edge of the lower surface of the protruding portion 15 and the peripheral edge inside the valve seat surface 26 is larger than 0.3 mm.
Moreover, the distance between the lower surface of the top packing 12 and the valve seat surface 26 (equal to the lift amount A) exceeds the size of the foreign matter G. Further, the flow passage width of the communication hole 23 becomes the original size, and the flow rate of hot water increases at a stretch. Therefore, since the foreign matter G passes between the lower surface of the top packing 12 and the valve seat surface 26 at a stretch, the foreign matter G does not adhere to the valve seat surface 26 even when the state shown in FIG.
【0018】また、異物Gよりも大型の異物(例えば、
直径0.3〜0.5mm)gは、リフト量Aが突出長C
を所定量(概ね、異物gの直径と隙間幅Bとの差)だけ
越えるまでは、突出部15の下面の周縁部と、弁座面2
6の内側の周縁部に邪魔をされ、連通孔23内に止まる
(図4を参照)。従って、この状態のまま水栓を止水状
態にすると、この大型の異物gは突出部26の下面に押
されて弁座面26と遠ざかるため、この異物gは弁座面
26に付着しない。一方、リフト量Aがこの所定量を僅
かに越えると、図4に示す間隔dが異物gの直径よりも
大きくなり、異物gはこまパッキン12と弁座面26と
の間に侵入する。しかしながら、この時、こまパッキン
12と弁座面26の距離は、この間隔dよりも略突出長
Cの分だけ、大きくなるため、この異物gは、こまパッ
キン12と、弁座面26の間を容易に通過する。Further, a foreign substance larger than the foreign substance G (for example,
The diameter A is 0.3 to 0.5 mm) g, the lift amount A is the protrusion length C
Until a predetermined amount (approximately the difference between the diameter of the foreign matter g and the gap width B) exceeds the peripheral portion of the lower surface of the protrusion 15 and the valve seat surface 2.
The inner peripheral portion 6 is obstructed and stops in the communication hole 23 (see FIG. 4). Therefore, if the faucet is brought into a water-stop state in this state, the large foreign matter g is pushed by the lower surface of the protruding portion 26 and moves away from the valve seat surface 26, so that the foreign matter g does not adhere to the valve seat surface 26. On the other hand, when the lift amount A slightly exceeds the predetermined amount, the interval d shown in FIG. 4 becomes larger than the diameter of the foreign matter g, and the foreign matter g enters between the top packing 12 and the valve seat surface 26. However, at this time, the distance between the frame packing 12 and the valve seat surface 26 is larger than the distance d by the length of the protrusion C, so that the foreign matter g is generated between the frame packing 12 and the valve seat surface 26. Through easily.
【0019】以上のように、本水栓こま10によれば、
リフト量Aの多少に係わらず、好ましくないサイズの異
物G、gが弁座面26に付着することを確実に防止でき
る。このため、水栓10のメンテナンスの費用と手間を
大きく省略できる。しかも、上流側のストレーナの働き
により、これらの異物G、gよりも大型の異物の弁座面
26への付着も確実に防止できる。尚、本水栓こま10
の上流側にストレーナを配置しない場合にも、本水栓こ
ま10は有効である。この場合、前述の異物G、gより
も大きな異物(例えば、直径0.5〜0.8mmの異
物)が連通孔23に到達することがあるが、異物gと同
様に処理できるからである。As described above, according to the present faucet top 10,
Irrespective of the amount of lift A, it is possible to reliably prevent undesired foreign substances G and g from adhering to the valve seat surface 26. For this reason, the cost and labor of maintenance of the faucet 10 can be largely omitted. In addition, the function of the strainer on the upstream side can reliably prevent foreign substances larger than these foreign substances G and g from adhering to the valve seat surface 26. In addition, this faucet top 10
This faucet top 10 is also effective when a strainer is not arranged on the upstream side. In this case, a foreign substance larger than the above-described foreign substances G and g (for example, a foreign substance having a diameter of 0.5 to 0.8 mm) may reach the communication hole 23, but can be processed in the same manner as the foreign substance g.
【0020】また、実際の弁座部25は、図5に示すよ
うに、丸みを帯びた形状とされるのが一般的である。こ
の場合に、突出部15の外形を、本実施の形態に示すよ
うな略円板形状としても十分である。しかしながら、こ
の突出部15の外周面を、図5(a)に示すように、弁
座部25の形状に略追随した丸みを帯びた形状とするこ
とが特に好ましい。但し、突出部15、引いては、水栓
こま10の製造の便宜上、突出部15の外周面を、図5
(b)に示すような斜めテーパとしても好ましい態様の
水栓こま10となる。The actual valve seat 25 is generally rounded as shown in FIG. In this case, it is sufficient that the outer shape of the protruding portion 15 has a substantially disk shape as shown in the present embodiment. However, it is particularly preferable that the outer peripheral surface of the protruding portion 15 has a rounded shape substantially following the shape of the valve seat portion 25 as shown in FIG. However, for convenience of manufacturing the projecting portion 15 and the faucet top 10, the outer peripheral surface of the projecting portion 15 is
The faucet top 10 in a preferred embodiment is also formed as an oblique taper as shown in FIG.
【0021】また、本水栓こま10の実際の設計に際し
ては、隙間幅Bの寸法を、対象とする異物Gの大きさの
半分程度とし、突出部の突出長Cを、この隙間幅の2倍
以上とするのが好ましい。例えば直径0.5mm以上の
異物を対象とする場合には、隙間幅を0.25mm程度
とし、突出部の突出長を0.5mm以上とすればよい。
この理由を以下に説明する。水栓こま10を水栓20に
装着した状態では、図6に示すように、取り付け誤差や
位置ずれ等により、突出部15と弁座部25との軸心が
ずれる場合がある。このように軸心のずれが生じた場合
には、最大で、突出部15の一部が連通孔23に接触す
る状態まで偏ることが考えられる。この状態では実際の
隙間幅bが設計上の隙間幅Bの2倍となり、対象とする
異物Gの進入を防止できなくなる。そこで、設計上の隙
間幅Bを、対象とする異物Gの直径の半分程度とすれ
ば、軸心のずれが生じたとしても、実際の隙間幅bが異
物Gの大きさを越えることはなく、参考発明の目的を確
実に達成することができる。ここで、当然、突出部15
の突出長Cは、予想し得る実際の隙間幅b以上の寸法で
なければならない。よって、突出部15の突出長Cを設
計上の隙間幅Bの寸法の2倍とすればよい。In the actual design of the faucet frame 10, the dimension of the gap width B is set to about half the size of the target foreign matter G, and the projecting length C of the projecting portion is set to 2 times the gap width. It is preferably at least twice. For example, when a foreign substance having a diameter of 0.5 mm or more is targeted, the gap width may be set to about 0.25 mm, and the protrusion length of the protrusion may be set to 0.5 mm or more.
The reason will be described below. When the faucet top 10 is attached to the faucet 20, as shown in FIG. 6, the axial center of the projecting portion 15 and the valve seat portion 25 may be displaced due to an attachment error, a displacement, or the like. When the axial center is shifted in this way, it is conceivable that the projection 15 may be biased up to a state where a part of the protrusion 15 contacts the communication hole 23 at the maximum. In this state, the actual gap width b becomes twice as large as the designed gap width B, and it becomes impossible to prevent the foreign matter G of interest from entering. Therefore, if the designed gap width B is set to about half the diameter of the target foreign matter G, the actual gap width b does not exceed the size of the foreign matter G even if the axial center shift occurs. Therefore, the object of the reference invention can be surely achieved. Here, of course, the protrusion 15
Must be greater than or equal to the expected actual gap width b. Therefore, the protrusion length C of the protrusion 15 may be set to be twice the dimension of the designed gap width B.
【0022】(2)実施の形態2 本実施の形態では、図7を用いて請求項1のストレーナ
付きの水栓こまの一具体例を説明する。この水栓こま3
0では、こまパッキン32の下面(作用面)より、網目
幅約0.5mmの下方が開口する円筒状のストレーナS
を垂下させている。このストレーナSの軸心は、こまパ
ッキン32の軸心に位置合わせされていると共に、この
ストレーナSの外径は、弁座部25の内径よりも約1m
m小さい。このため、このストレーナSが連通孔23内
に遊挿された状態で、ストレーナSの外周面と、連通孔
23の内周面との間には、約0.5mmの幅の隙間Jが
存在している。(2) Embodiment 2 In this embodiment, a specific example of a faucet top with a strainer according to claim 1 will be described with reference to FIG. This faucet top 3
0, a cylindrical strainer S having a mesh width of about 0.5 mm and opening downward from the lower surface (working surface) of the top packing 32.
Is hanging down. The axis of the strainer S is aligned with the axis of the top packing 32, and the outer diameter of the strainer S is about 1 m larger than the inner diameter of the valve seat 25.
m smaller. Therefore, when the strainer S is loosely inserted into the communication hole 23, a gap J having a width of about 0.5 mm exists between the outer peripheral surface of the strainer S and the inner peripheral surface of the communication hole 23. are doing.
【0023】本水栓こま30によると、上流側から直径
0.5mm以上の異物が到達しても、リフト量を多くし
てストレーナSを連通孔23から抜かない限り、この異
物は隙間Jを通過しない。そして、ストレーナSが連通
孔23内に止まる限り、この異物はストレーナSで捕獲
される。このように、直径0.5mm以上の異物は隙間
Jを通過しないため、水栓を止水状態にしても、この異
物は弁座面26に付着しない。According to the water faucet top 30, even if foreign matter having a diameter of 0.5 mm or more arrives from the upstream side, the foreign matter will fill the gap J unless the lifter is increased and the strainer S is pulled out of the communication hole 23. Do not pass. This foreign matter is captured by the strainer S as long as the strainer S stops in the communication hole 23. As described above, since the foreign matter having a diameter of 0.5 mm or more does not pass through the gap J, the foreign matter does not adhere to the valve seat surface 26 even when the faucet is in a water-stop state.
【0024】このように、本水栓こま30によっても、
好ましくないサイズの異物が弁座面26に付着すること
を防止できる。また、ストレーナSが水栓こま30と一
体であるため、この水栓こま30の上流側に別体のスト
レーナを敢て配置する必要がない。更に、取り扱いの容
易な水栓こま30を脱着するだけで、ストレーナSも脱
着されるため、水栓本体の内部や配管内等に設けられる
別体のストレーナに比べ、その保守、点検が容易であ
る。尚、本水栓こま30においては、ストレーナSの網
目幅の選択により、規制の対象となる異物のサイズを簡
単に変更できる。この場合には、ストレーナSと連通孔
23との隙間Jを、網目幅以上に設定するのが好まし
い。但し、隙間Jが規制の対象となる異物のサイズを越
えても、ストレーナSの作用で、従来の水栓こまを用い
る場合に比べ、好ましくない異物が弁座面26に付着す
る可能が低くなる点で、請求項1の発明の目的は十分に
達成される。As described above, the water faucet top 30 also
Foreign matter of an undesired size can be prevented from adhering to the valve seat surface 26. Further, since the strainer S is integrated with the faucet top 30, it is not necessary to arrange a separate strainer upstream of the faucet top 30. Furthermore, since the strainer S is also detached by simply detaching the faucet top 30 which is easy to handle, the maintenance and inspection thereof are easier than the separate strainer provided inside the faucet main body or in the piping. is there. In the faucet top 30, the size of the foreign matter to be regulated can be easily changed by selecting the mesh width of the strainer S. In this case, it is preferable to set the gap J between the strainer S and the communication hole 23 to be equal to or larger than the mesh width. However, even if the gap J exceeds the size of the foreign matter to be regulated, the possibility of undesired foreign matter adhering to the valve seat surface 26 is reduced by the action of the strainer S as compared with the case of using a conventional faucet top. In this respect, the object of the invention of claim 1 is sufficiently achieved.
【0025】尚、前記各発明の範囲は、前記具体的に示
した各実施の形態に示すものに限定されず、各発明の範
囲内で種々の変形例を例示できる。即ち、各実施の形態
では、水栓こま10、30が落しこまである場合につい
て述べたが、固定こま等の他の形式のものであってもよ
い。また、各実施の形態では、吐水管からの吐水を行う
水栓20への適用例を示したが、本水栓こま10は、吐
水管からの吐水及びシャワー口からのシャワー吐水を行
うものや、シャワー吐水のみを行うものに対しても好適
に適用できる。The scope of each invention is not limited to the specific embodiments described above, and various modifications can be made within the scope of each invention. That is, in each embodiment, the case where the faucet tops 10 and 30 are fully dropped has been described, but other types such as a fixed top may be used. Further, in each embodiment, an example of application to the faucet 20 for discharging water from the water discharge pipe has been described. However, the present faucet top 10 performs water discharge from the water discharge pipe and shower water discharge from the shower port. Also, the present invention can be suitably applied to a device that performs only shower water discharge.
【0026】更に、他の変形例として、参考発明及び請
求項1の発明の水栓こまの特徴を兼ね備えた水栓こまを
例示できる。具体的には、図1に示したような突出部1
5の下面に、さらに円筒状のストレーナSを垂設すれば
よい。かかる場合、ストレーナSの網目幅を「隙間Jの
幅」よりも大きくするのが有効である。この場合、大き
な異物をストレーナSで処理し、これよりも小さ目だが
好ましくないサイズの異物を実施の形態1と同様な手法
で処理することになる。Further, as another modified example, the reference invention and the contract
It can be exemplified faucet top that combines faucet frame feature of the invention Motomeko 1. Specifically, the protrusion 1 as shown in FIG.
It is sufficient that a cylindrical strainer S is further provided vertically on the lower surface of the wire 5. In such a case, it is effective to make the mesh width of the strainer S larger than the “width of the gap J”. In this case, a large foreign substance is processed by the strainer S, and a smaller foreign substance of an undesired size is processed by the same method as in the first embodiment.
【0027】[0027]
【発明の効果】以上のように、請求項1の発明による
と、好ましくないサイズの異物の弁座部(特に弁座面)
への付着を防止できる。更に、水栓こまの上流側に敢え
て別体のストレーナを配置しなくてもよい。また、この
別体のストレーナを配置する場合に比べ、ストレーナの
保守、点検が容易となる。As described above, according to the first aspect of the present invention,
And the valve seat of foreign matter of undesired size (especially the valve seat surface)
Can be prevented from sticking to the surface. Further, it is not necessary to arrange a separate strainer on the upstream side of the faucet top. In addition, maintenance and inspection of the strainer are easier than in the case where this separate strainer is arranged.
【図1】発明の実施の形態1の水栓こまの取り付け状態
を説明するための概略的な一部縦断面図である。FIG. 1 is a schematic partial longitudinal sectional view for explaining an attached state of a faucet top according to Embodiment 1 of the present invention.
【図2】図1の水栓こまの機能を説明するために、水栓
こま及び弁座部を示す概略的な一部縦断面図である。FIG. 2 is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for explaining the function of the faucet top of FIG. 1;
【図3】図1の水栓こまの機能を説明するために、水栓
こま及び弁座部を示す概略的な一部縦断面図である。FIG. 3 is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for explaining the function of the faucet top of FIG. 1;
【図4】図1の水栓こまの機能を説明するために、水栓
こま及び弁座部を示す概略的な一部縦断面図である。FIG. 4 is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for explaining a function of the faucet top of FIG. 1;
【図5】(a)は図1の水栓こまの特に好ましい態様を
示すために、水栓こま及び弁座部を示す概略的な一部縦
断面図、(b)は図1の水栓こまの好ましい態様を示す
ために、水栓こま及び弁座部を示す概略的な一部縦断面
図である。5 (a) is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for showing a particularly preferred embodiment of the faucet top of FIG. 1, and FIG. 5 (b) is a faucet of FIG. FIG. 3 is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for showing a preferred mode of the top.
【図6】図1の水栓こまに取り付け誤差等が存在する状
態を説明するために、水栓こま及び弁座部を示す概略的
な一部縦断面図である。FIG. 6 is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for explaining a state where an installation error or the like exists in the faucet top of FIG. 1;
【図7】発明の実施の形態2の水栓こまを説明するため
に、水栓こま及び弁座部を示す概略的な一部縦断面図で
ある。FIG. 7 is a schematic partial longitudinal sectional view showing a faucet top and a valve seat for explaining a faucet top according to Embodiment 2 of the present invention.
【図8】(a)は従来の水栓こまにおいて異物が水栓こ
ま及び弁座部の間を通過する状態を示す概略的な一部縦
断面図、(b)は従来の水栓こまにおいて異物が水栓こ
ま及び弁座部の間に引っ掛かった状態を示す概略的な一
部縦断面図、(c)は従来の水栓こまにおいて異物が水
栓こま及び弁座部で潰された状態を示す概略的な一部縦
断面図である。FIG. 8A is a schematic partial longitudinal sectional view showing a state in which foreign matter passes between the faucet top and the valve seat in the conventional faucet top, and FIG. FIG. 3C is a schematic partial longitudinal sectional view showing a state in which foreign matter is caught between the faucet top and the valve seat. FIG. 4C shows a state in which foreign matter is crushed by the conventional faucet top and valve seat. FIG.
10、30;水栓こま、11;こま台、12、32;こ
まパッキン、15;突出部、16;突起、 20;水栓、21;導入室、22;排出室、23;連通
孔、25;弁座部、26;弁座面、27;スピンドル装
着部、28;スピンドル、29;挿入穴、 B;隙間幅、C;突出長、A;リフト量、G、g;異
物、D、d;間隔、S;ストレーナ、J;隙間。10, 30; faucet top, 11; top stand, 12, 32; top packing, 15; protrusion, 16; projection, 20; faucet, 21; introduction chamber, 22; discharge chamber, 23; ; Valve seat part, 26; Valve seat surface, 27; Spindle mounting part, 28; Spindle, 29; Insertion hole, B: Gap width, C: Projection length, A: Lift amount, G, g: Foreign matter, D, d Interval, S: strainer, J: gap.
フロントページの続き (56)参考文献 実開 昭60−128064(JP,U) 実開 昭53−78629(JP,U) 実開 昭50−98559(JP,U) 実開 昭53−82829(JP,U) 実開 昭55−168767(JP,U) (58)調査した分野(Int.Cl.7,DB名) E03C 1/02 E03C 1/042 F16K 1/00 - 1/52 F16K 51/00 Continued on the front page (56) References Japanese Utility Model Showa 60-128064 (JP, U) Japanese Utility Model Showa 53-78629 (JP, U) Japanese Utility Model Showa 50-98559 (JP, U) Japanese Utility Model Showa 53-82829 (JP) , U) Actually open sho 55-168767 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) E03C 1/02 E03C 1/042 F16K 1/00-1/52 F16K 51/00
Claims (1)
栓こまであって、こまパッキンの作用面に、前記弁座部
の連通孔内に遊挿可能なストレーナを設けたことを特徴
とする水栓こま。 1. A faucet top for opening and closing a valve seat provided on a faucet, wherein a strainer which can be loosely inserted into a communication hole of the valve seat is provided on a working surface of a top packing. A faucet top characterized by the following.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09252757A JP3122840B2 (en) | 1997-09-01 | 1997-09-01 | Faucet top |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09252757A JP3122840B2 (en) | 1997-09-01 | 1997-09-01 | Faucet top |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000243220A Division JP2001081820A (en) | 2000-08-10 | 2000-08-10 | Faucet piece |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1181403A JPH1181403A (en) | 1999-03-26 |
JP3122840B2 true JP3122840B2 (en) | 2001-01-09 |
Family
ID=17241874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP09252757A Expired - Fee Related JP3122840B2 (en) | 1997-09-01 | 1997-09-01 | Faucet top |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3122840B2 (en) |
-
1997
- 1997-09-01 JP JP09252757A patent/JP3122840B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH1181403A (en) | 1999-03-26 |
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