JP2005264979A

JP2005264979A - Opening/closing valve device and cock device equipped with the opening/closing valve device

Info

Publication number: JP2005264979A
Application number: JP2004074841A
Authority: JP
Inventors: Atsuro Wakita; 敦朗脇田; Shigeki Inatomi; 繁樹稲富; Hideyuki Matsui; 英之松井; Yojiro Taketomi; 洋次郎武富; Masabumi Nakao; 正文中尾
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2004-03-16
Filing date: 2004-03-16
Publication date: 2005-09-29

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing device capable of carrying out both of stopping/discharging water operation and flow rate adjusting operation by operating the same operating portion, and a cock device equipped with the opening/closing valve device. <P>SOLUTION: The opening/closing device 20 capable of switching a water stopping state and a water discharging state, and adjusting the flow rate of the discharged water, comprises the operating portion 22 that can be moved in parallel and rotated by operation of an user; a main valve element 34 moved in parallel by operating the operating portion, and switching the water stopping state and the water discharging state; a valve seat 30a seated by the main valve element; a flow rate adjusting member 36 abutting on the main valve element in the water discharging state, and regulating a clearance between the main valve element and the valve seat; and flow rate adjusting member moving mechanisms 26, 28 moving the flow rate adjusting member by rotating the operating portion. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、開閉弁装置に関し、特に、吐水流量を調整することができる開閉弁装置及びそれを備えた水栓装置に係る。 The present invention relates to an on-off valve device, and more particularly to an on-off valve device capable of adjusting a water discharge flow rate and a faucet device including the on-off valve device.

最近、押し釦の操作により止水と吐水を切り替えるプッシュ式の水栓装置が普及し始めている。これらの水栓装置に使用されている開閉弁装置の多くは、吐水時の流量は固定されており、吐水流量を調整することはできない。特開２００１−９８５９６号公報には、吐止水操作部を押すことにより吐水と止水を切り替え、流調操作部を回転させることにより流量を調整することができる吐水装置（開閉弁装置）が記載されている。 Recently, a push-type faucet device that switches between water stop and water discharge by the operation of a push button has begun to spread. Many of the on-off valve devices used in these water faucet devices have a fixed flow rate at the time of water discharge and cannot adjust the water discharge flow rate. Japanese Patent Laid-Open No. 2001-98596 discloses a water discharge device (open / close valve device) that can switch between water discharge and water stop by pushing a water discharge operation portion and adjust the flow rate by rotating a flow adjustment operation portion. Has been described.

図１５は、特開２００１−９８５９６号公報に記載の吐水装置の断面図である。図１５に示すように、吐水装置１００は、本体１０２と、本体１０２に取り付けられた主弁体１０４と、主弁体１０４に設けられた圧力開放穴１０４ａを閉鎖するパイロット弁１０６と、パイロット弁１０６を上下に移動させるパイロット弁駆動機構１０７及び吐止水操作部１０８と、主弁体１０４を押えるスリーブ１０９と、を有する。さらに、吐水装置１００は、流量調整部材１１０と、流量調整部材１１０を上下に移動させるための流調操作部１１２と、を有する。 FIG. 15 is a cross-sectional view of the water discharge device described in Japanese Patent Application Laid-Open No. 2001-98596. As shown in FIG. 15, the water discharge device 100 includes a main body 102, a main valve body 104 attached to the main body 102, a pilot valve 106 that closes a pressure release hole 104 a provided in the main valve body 104, and a pilot valve A pilot valve drive mechanism 107 and a spouting water operation unit 108 that move the 106 up and down, and a sleeve 109 that presses the main valve body 104 are provided. Further, the water discharge device 100 includes a flow rate adjustment member 110 and a flow adjustment operation unit 112 for moving the flow rate adjustment member 110 up and down.

また、主弁体１０４の上方には圧力室形成部材１０５が配置され、主弁体１０４と圧力室形成部材１０５との間に圧力室が形成される。主弁体１０４には、本体１０２の流入側と圧力室とを連通させる連通孔１０４ｂが形成されている。また、吐止水操作部１０８を押圧操作すると、パイロット弁１０６はパイロット弁駆動機構１０７によって上下に移動され、主弁体１０４の圧力開放穴１０４ａが開閉される。流量調整部材１１０は、圧力室の内部から外部へ延びるように配置され、流調操作部１１２を回転操作するとネジ機構により上下に移動されるように構成されている。 A pressure chamber forming member 105 is disposed above the main valve body 104, and a pressure chamber is formed between the main valve body 104 and the pressure chamber forming member 105. The main valve body 104 is formed with a communication hole 104b that allows communication between the inflow side of the main body 102 and the pressure chamber. Further, when the spout water operation unit 108 is pressed, the pilot valve 106 is moved up and down by the pilot valve drive mechanism 107, and the pressure release hole 104a of the main valve body 104 is opened and closed. The flow rate adjusting member 110 is disposed so as to extend from the inside of the pressure chamber to the outside, and is configured to be moved up and down by a screw mechanism when the flow adjustment operation unit 112 is rotated.

止水状態においては、パイロット弁１０６が圧力開放穴１０４ａを閉鎖しているため、本体１０２の上流側から連通孔１０４ｂを通って圧力室内に流入した水が圧力室内に溜まるので、圧力室内の圧力が高くなり、主弁体１０４が下方の弁座に押し付けられて止水される。次に、吐止水操作部１０８を押すと、パイロット弁駆動機構１０７によってパイロット弁１０６は上方に引き上げられ、圧力開放穴１０４ａが開放される。圧力開放穴１０４ａが開放されると、圧力室内の圧力は低下するので、主弁体１０４を弁座に押し付ける力は作用しなくなり、主弁体１０４が開放されて吐水状態となる。吐水状態においては、主弁体１０４は、上方に上がり、流量調整部材１１０の下端に当接した位置に止まる。 In the water stoppage state, the pilot valve 106 closes the pressure release hole 104a, so water flowing into the pressure chamber from the upstream side of the main body 102 through the communication hole 104b is accumulated in the pressure chamber. The main valve body 104 is pressed against the lower valve seat and water is stopped. Next, when the spout water operation unit 108 is pushed, the pilot valve 106 is pulled upward by the pilot valve drive mechanism 107, and the pressure release hole 104a is opened. When the pressure release hole 104a is opened, the pressure in the pressure chamber decreases, so that the force that presses the main valve body 104 against the valve seat does not act, and the main valve body 104 is opened and water is discharged. In the water discharge state, the main valve body 104 rises upward and stops at a position in contact with the lower end of the flow rate adjusting member 110.

流量調整部材１１０は、流調操作部１１２を回転操作することによって上下に移動されるので、流量調整部材１１０が上方に位置する場合には、主弁体１０４は大きく移動して弁座と主弁体１０４との間隔が広くなる。これに対して、流量調整部材１１０が下方に位置する場合には、上方にあまり移動しない位置で流量調整部材１１０に当接するので、弁座と主弁体１０４との間隔は狭くなる。従って、吐水状態における主弁体１０４の位置は、流量調整部材１１０の位置によって規制され、吐水時における流量が流量調整部材１１０によって調整される。 Since the flow rate adjusting member 110 is moved up and down by rotating the flow adjustment operation unit 112, when the flow rate adjusting member 110 is positioned upward, the main valve body 104 moves greatly to move the valve seat and the main seat. The interval with the valve body 104 becomes wide. On the other hand, when the flow rate adjusting member 110 is positioned downward, the flow rate adjusting member 110 is in contact with the flow rate adjusting member 110 at a position where it does not move much upward. Accordingly, the position of the main valve body 104 in the water discharge state is regulated by the position of the flow rate adjustment member 110, and the flow rate during water discharge is adjusted by the flow rate adjustment member 110.

特開２００１−９８５９６号公報JP 2001-98596 A

しかしながら、特開２００１−９８５９６号公報記載の吐水装置では、止水及び吐水を行う操作と、流量調整を行う操作を、別々の操作部で夫々行う必要があるため、操作性が良くないという問題がある。 However, in the water discharge device described in Japanese Patent Application Laid-Open No. 2001-98596, it is necessary to perform the operation for stopping and discharging water and the operation for adjusting the flow rate in separate operation units, so that the operability is not good. There is.

また、図１５に示した特開２００１−９８５９６号公報に記載された吐水装置の構造では、圧力室内の水密性を保つために、流量調整部材１１０とスリーブ１０９との間のシール部材１１０ａ、及び流量調整部材１１０と圧力室形成部材１０５の間のシール部材１０５ａが必要になる。このため、流量調整部材１１０を移動させるためには、これらのシール部材の摺動抵抗に打ち勝つ力で流量調整部材１１０を操作する必要がある。また、シール部材１１０ａ及びシール部材１０５ａは、比較的直径が大きいので、流量調整部材１１０を操作する際の摺動抵抗も大きくなる。 Further, in the structure of the water discharging device described in Japanese Patent Laid-Open No. 2001-98596 shown in FIG. 15, in order to maintain the water tightness in the pressure chamber, the seal member 110a between the flow rate adjusting member 110 and the sleeve 109, and A seal member 105 a between the flow rate adjusting member 110 and the pressure chamber forming member 105 is required. For this reason, in order to move the flow rate adjusting member 110, it is necessary to operate the flow rate adjusting member 110 with a force that overcomes the sliding resistance of these seal members. Further, since the seal member 110a and the seal member 105a have a relatively large diameter, the sliding resistance when operating the flow rate adjusting member 110 is also increased.

従って、特開２００１−９８５９６号公報に記載された吐水装置の構造では、流量調整部材が吐止水操作部の外側に位置しているため流量調整用の操作部が大型になってしまい、開閉弁装置又はそれを備えた水栓装置が大型化する。また、流量調整部材を操作する摺動抵抗も大きくなるので、流量調整を行うために大きな操作力を要するという課題がある。 Therefore, in the structure of the water discharge device described in Japanese Patent Application Laid-Open No. 2001-98596, the flow rate adjustment member is located outside the discharge water operation unit, so that the flow rate adjustment operation unit becomes large and opens and closes. The valve device or the faucet device provided with the valve device is enlarged. Further, since the sliding resistance for operating the flow rate adjusting member is increased, there is a problem that a large operating force is required to adjust the flow rate.

従って、本発明は、同一の操作部を操作することによって、止水及び吐水操作と流量調整操作の両方を行うことができる開閉弁装置及びそれを備えた水栓装置を提供することを目的としている。
また、本発明は、流量調整機能を備えた小型の開閉弁装置及びそれを備えた水栓装置を提供することを目的としている。 Accordingly, an object of the present invention is to provide an on-off valve device capable of performing both water stop and water discharge operation and flow rate adjustment operation by operating the same operation unit, and a faucet device including the same. Yes.
Another object of the present invention is to provide a small on-off valve device having a flow rate adjusting function and a faucet device having the same.

上述した課題を解決するために、本発明は、止水状態と吐水状態を切り替え且つ吐水流量を調整することができる開閉弁装置であって、使用者の操作により、平行移動及び回転可能な操作部と、この操作部の操作により平行に移動され、止水状態と吐水状態を切り替える主弁体と、この主弁体が着座する弁座と、吐水状態となったとき主弁体と当接して主弁体と弁座の間の間隔を規制する流量調整部材と、操作部の回転操作により、流量調整部材を移動させる流量調整部材移動機構と、を有することを特徴としている。 In order to solve the above-described problems, the present invention is an on-off valve device that can switch between a water stop state and a water discharge state and adjust the water discharge flow rate, and can be translated and rotated by a user's operation. A main valve body that is moved in parallel by the operation of the operation section and switches between a water stop state and a water discharge state, a valve seat on which the main valve body is seated, and a main valve body that comes into contact with the water discharge state. And a flow rate adjusting member that regulates a distance between the main valve body and the valve seat, and a flow rate adjusting member moving mechanism that moves the flow rate adjusting member by rotating the operation unit.

このように構成された本発明においては、操作部を押圧操作して、操作部を平行に移動させると、主弁体が移動され、開閉弁装置の止水状態と吐水状態が切り替えられる。また、この操作部を回転操作して、操作部を回転させると、流量調整部材移動機構によって流量調整部材が移動される。流量調整部材は、吐水状態において、主弁体と当接することによって主弁体と弁座の間の間隔を規制するので、操作部を回転操作することによって開閉弁装置の吐水流量が調整される。 In the present invention configured as described above, when the operation unit is pressed and moved in parallel, the main valve body is moved, and the water stop state and the water discharge state of the on-off valve device are switched. When the operation unit is rotated to rotate the operation unit, the flow rate adjusting member is moved by the flow rate adjusting member moving mechanism. Since the flow rate adjusting member regulates the interval between the main valve body and the valve seat by contacting the main valve body in the water discharge state, the water discharge flow rate of the on-off valve device is adjusted by rotating the operation portion. .

このように構成された本発明によれば、操作部の押圧操作により、止水、吐水を切り替えることができ、また、この操作部の回転操作により吐水流量を調整することができるので、開閉弁装置の操作性を改善することができる。また、一つの操作部で止水、吐水の切り替え及び流量調整ができるので、開閉弁装置全体を小型化することができる。 According to the present invention configured as described above, the water stop and water discharge can be switched by the pressing operation of the operation unit, and the water discharge flow rate can be adjusted by the rotation operation of the operation unit. The operability of the apparatus can be improved. In addition, since the water stop and water discharge can be switched and the flow rate can be adjusted with a single operation unit, the entire on-off valve device can be downsized.

また、本発明は、止水状態と吐水状態を切り替え且つ吐水流量を調整することができる開閉弁装置であって、圧力開放穴を備え、止水状態と吐水状態を切り替える主弁体と、この主弁体が着座する弁座と、使用者の操作により、圧力開放穴を開閉するパイロット弁と、このパイロット弁によって圧力開放穴が閉鎖されると、内部の圧力が上昇して、主弁体を弁座の方へ移動させる圧力室と、この圧力室の内部に配置され、吐水状態となったとき主弁体と当接して主弁体と弁座の間の距離を規制する流量調整部材と、この流量調整部材を、使用者の操作により圧力室内で移動させる流量調整部材移動機構と、を有することを特徴としている。 Further, the present invention is an on-off valve device that can switch between a water stop state and a water discharge state and adjust the water discharge flow rate, and includes a main valve body that includes a pressure release hole and switches between the water stop state and the water discharge state. The valve seat on which the main valve body is seated, the pilot valve that opens and closes the pressure release hole by the operation of the user, and when the pressure release hole is closed by this pilot valve, the internal pressure rises and the main valve body A pressure chamber that moves the valve body toward the valve seat, and a flow rate adjusting member that is disposed inside the pressure chamber and that contacts the main valve body and regulates the distance between the main valve body and the valve seat when the water discharge state occurs And a flow rate adjusting member moving mechanism for moving the flow rate adjusting member in the pressure chamber by a user's operation.

このように構成された本発明においては、使用者の操作により主弁体の圧力開放穴が開閉され、圧力開放穴が閉鎖されると、圧力室内の圧力が高まって主弁体が弁座の方へ移動され、開閉弁装置は止水状態となる。また、圧力室内に配置された流量調整部材は、使用者の操作により圧力室内で移動される。流量調整部材は、吐水状態において、主弁体と当接することによって主弁体と弁座の間の間隔を規制するので、使用者の操作によって開閉弁装置の吐水流量が調整される。 In the present invention configured as described above, when the pressure release hole of the main valve body is opened and closed by the operation of the user and the pressure release hole is closed, the pressure in the pressure chamber is increased and the main valve body is attached to the valve seat. The on-off valve device is stopped. Further, the flow rate adjusting member arranged in the pressure chamber is moved in the pressure chamber by a user operation. Since the flow rate adjusting member regulates the interval between the main valve body and the valve seat by contacting the main valve body in the water discharge state, the water discharge flow rate of the on-off valve device is adjusted by the user's operation.

このように構成された本発明によれば、流量調整部材が圧力室内に配置されているので、開閉弁装置全体を小型化することができる。また、流量調整部材が圧力室内に配置されているので、流量調整部材と他の部材との間に水密性を確保するためのシール部材を必要としないため、流量調整部材と他の部材との間の摺動抵抗が非常に小さくなり、流量調整部材を移動させるための操作力も小さくすることができる。 According to the present invention configured as described above, since the flow rate adjusting member is disposed in the pressure chamber, the entire on-off valve device can be reduced in size. In addition, since the flow rate adjusting member is disposed in the pressure chamber, a seal member for ensuring watertightness is not required between the flow rate adjusting member and the other members. The sliding resistance between them becomes very small, and the operating force for moving the flow rate adjusting member can also be reduced.

本発明において、好ましくは、さらに、操作部を有し、この操作部が押圧操作されると、パイロット弁が平行移動されて圧力開放穴が開閉され、操作部が回転操作されると、流量調整部材移動機構を介して流量調整部材が移動される。 In the present invention, preferably, it further has an operation part, and when this operation part is pressed, the pilot valve is translated to open and close the pressure release hole, and when the operation part is rotated, the flow rate is adjusted. The flow rate adjusting member is moved via the member moving mechanism.

このように構成された本発明においては、操作部を押圧操作すると主弁体の圧力開放穴が開閉されて、主弁体が移動し、開閉弁装置の止水状態と吐水状態が切り替えられる。また、操作部を回転操作すると、流量調整部材が移動され、開閉弁装置が吐水状態にあるときの主弁体と弁座の間隔が調整され、吐水流量が調整される。 In the present invention configured as described above, when the operation portion is pressed, the pressure release hole of the main valve body is opened and closed, the main valve body moves, and the water stop state and the water discharge state of the open / close valve device are switched. Further, when the operation unit is rotated, the flow rate adjusting member is moved, the interval between the main valve body and the valve seat when the on-off valve device is in the water discharge state is adjusted, and the water discharge flow rate is adjusted.

また、本発明において、好ましくは、流量調整部材移動機構が、圧力室の外部から内部へ延び、且つ圧力室の内部で流量調整部材と係合する操作力伝達部材を有し、この操作力伝達部材を回転させると、流量調整部材が、操作力伝達部材の回転の軸線方向に平行移動される。 In the present invention, it is preferable that the flow rate adjusting member moving mechanism has an operating force transmission member that extends from the outside to the inside of the pressure chamber and engages with the flow rate adjusting member inside the pressure chamber. When the member is rotated, the flow rate adjusting member is translated in the axial direction of the rotation of the operating force transmission member.

さらに、本発明において、好ましくは、操作力伝達部材は、操作部が回転操作されたとき操作部と共に回転されて流量調整部材を移動させ、また、操作力伝達部材は、操作部が押圧操作されたときには移動されないように、直接的又は間接的に操作部と連結されている。 Further, in the present invention, preferably, the operating force transmission member is rotated together with the operation portion when the operation portion is rotated, and the flow rate adjusting member is moved, and the operation force transmission member is operated by pressing the operation portion. It is directly or indirectly connected to the operation unit so that it will not be moved.

このように構成された本発明においては、操作力伝達部材は、操作部が回転操作されたときは、その操作力を流量調整部材に伝達し、操作部が押圧操作されたときには、その操作力を他の部材に伝達しない。 In the present invention configured as described above, the operating force transmission member transmits the operating force to the flow rate adjusting member when the operating portion is rotated, and the operating force when the operating portion is pressed. Is not transmitted to other members.

また、本発明の水栓装置は、上記何れかの開閉弁装置と、この開閉弁装置を受け入れる水栓本体と、この水栓本体と連通する吐水口を備えたスパウト部又はシャワーヘッドと、を有することを特徴としている。 Further, the faucet device of the present invention includes any one of the on-off valve device, a faucet body that receives the on-off valve device, and a spout section or a shower head that includes a water outlet that communicates with the faucet body. It is characterized by having.

本発明の開閉弁装置及びそれを備えた水栓装置によれば、同一の操作部を操作することによって、止水及び吐水操作と流量調整操作の両方を行うことができる。
また、本発明の開閉弁装置及びそれを備えた水栓装置によれば、流量調整機能を備えながら、開閉弁装置又は水栓装置を小型化することができる。 According to the on-off valve device and the faucet device including the same according to the present invention, both the water stop and water discharge operation and the flow rate adjustment operation can be performed by operating the same operation unit.
Moreover, according to the on-off valve device and the faucet device having the same according to the present invention, the on-off valve device or the faucet device can be downsized while having a flow rate adjusting function.

次に、添付図面を参照して、本発明の実施形態の水栓装置を説明する。
図１は、本発明の実施形態の水栓装置を組み込んだ流し台の全体を示す斜視図である。図２は、本発明の実施形態の水栓装置の水栓本体部の拡大斜視図であり、図３は、その断面図である。また、図４は、本発明の実施形態の水栓装置に組み込まれている開閉弁装置の斜視図であり、図５は、その吐水状態における断面図、図６は止水状態における断面図である。 Next, a faucet device according to an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view showing the whole sink equipped with a faucet device according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view of a faucet body portion of the faucet device according to the embodiment of the present invention, and FIG. 3 is a cross-sectional view thereof. 4 is a perspective view of the on-off valve device incorporated in the faucet device of the embodiment of the present invention, FIG. 5 is a cross-sectional view in the water discharge state, and FIG. 6 is a cross-sectional view in the water stop state. is there.

図１に示すように、本発明の実施形態の水栓装置１は、シンク部４を備えた流し台２に組み込んで使用される。また、水栓装置１は、水栓から吐水される水温を調整する温調操作部６と、止水、吐水の切り替え及び流量調節を行う流調操作部８と、流量調整された水が吐水されるスパウト部９と、を有する。 As shown in FIG. 1, a faucet device 1 according to an embodiment of the present invention is used by being incorporated in a sink 2 having a sink portion 4. In addition, the faucet device 1 includes a temperature adjustment operation unit 6 that adjusts the temperature of water discharged from the faucet, a flow adjustment operation unit 8 that performs water stop and water discharge switching and flow rate adjustment, and water whose flow rate has been adjusted is discharged. And a spout portion 9 to be provided.

図２は、水栓装置１の流調操作部８の拡大斜視図であり、流調操作部８は、本体部１０と、この本体部１０から上方に突出可能なハンドル部１２と、ハンドル部１２の周囲に配置された台座部１４と、本体部１０を流し台２等に取り付ける固定ナット１６と、を有する。また、本体部１０には、温調操作部６で温度調整された水を流調操作部８に流入させる流入配管１０ａと、流調操作部８で流量を調整した水を流出させる流出配管１０ｂが接続される。なお、流調操作部８は、水栓装置１を流し台２に組み込んだ際には、図１に示すように、台座部１４から下方の部分は流し台２の中に隠れる。使用において、まず、止水状態では、図２(ａ)に示すように、ハンドル部１２は、その周囲の台座部１４の上端部と面一の状態にあり、上方に突出していない。この状態から、ハンドル部１２を押圧操作すると、水栓装置１のスパウト部９から吐水が開始されると共に、図２(ｂ)に示すように、ハンドル部１２が上方に突出する。さらに、上方に突出したハンドル部１２を回転操作することにより、水栓装置１から吐出される水の流量を調整することができる。図２(ｂ)の状態から再びハンドル部１２を押圧操作することにより、ハンドル部１２は図２(ａ)に示す状態に戻り、止水される。ここで、もう一度ハンドル部１２を押圧操作して吐水させた場合には、先に調整した流量で水が再び吐水される。 FIG. 2 is an enlarged perspective view of the flow adjustment operation unit 8 of the faucet device 1. The flow adjustment operation unit 8 includes a main body 10, a handle part 12 that can protrude upward from the main body 10, and a handle part. 12 and a fixing nut 16 for attaching the main body 10 to the sink 2 or the like. In addition, the main body 10 includes an inflow pipe 10a for flowing water whose temperature is adjusted by the temperature adjustment operation section 6 into the flow adjustment operation section 8, and an outflow pipe 10b for discharging water whose flow rate is adjusted by the flow adjustment operation section 8. Is connected. In addition, when the faucet device 1 is assembled in the sink 2, the flow adjustment operation unit 8 is hidden in the sink 2 below the pedestal 14 as shown in FIG. 1. In use, first, in the water-stopped state, as shown in FIG. 2A, the handle portion 12 is flush with the upper end portion of the surrounding pedestal portion 14, and does not protrude upward. When the handle portion 12 is pressed from this state, water discharge starts from the spout portion 9 of the faucet device 1, and the handle portion 12 protrudes upward as shown in FIG. 2 (b). Furthermore, the flow rate of water discharged from the faucet device 1 can be adjusted by rotating the handle portion 12 protruding upward. By pressing the handle portion 12 again from the state of FIG. 2 (b), the handle portion 12 returns to the state shown in FIG. 2 (a) and is stopped. Here, when the handle portion 12 is pressed again to discharge water, the water is discharged again at the previously adjusted flow rate.

図３は、流調操作部８の全断面図である。図３に示すように、流調操作部８は、その本体部１０の中に開閉弁装置２０を備えており、開閉弁装置２０は締付けナット２１により本体部１０に固定される。 FIG. 3 is a full cross-sectional view of the flow adjustment operation unit 8. As shown in FIG. 3, the flow control operation unit 8 includes an on-off valve device 20 in the main body 10, and the on-off valve device 20 is fixed to the main body 10 by a tightening nut 21.

図４は本体部１０の中に備えられた開閉弁装置２０の斜視図であり、図５はその吐水状態における全断面図、図６はその止水状態における全断面図である。
図４乃至図６に示すように、開閉弁装置２０は、操作部２２と、この操作部２２の内側に取り付けられたガイド部材２４と、このガイド部材２４の内側に挿入された操作力伝達部材２６と、を有する。さらに、開閉弁装置２０は、操作力伝達部材２６の下側に配置され、圧力室を形成する主弁体押え部材２８と、この主弁体押え部材２８の下側に配置されたバルブ台座部材３０と、以上の部材を包囲して、各部材を所定の位置に拘束するカバー３２と、を有する。 4 is a perspective view of the on-off valve device 20 provided in the main body 10, FIG. 5 is a full cross-sectional view in the water discharge state, and FIG. 6 is a full cross-sectional view in the water stop state.
As shown in FIGS. 4 to 6, the on-off valve device 20 includes an operating portion 22, a guide member 24 attached to the inside of the operating portion 22, and an operating force transmission member inserted to the inside of the guide member 24. 26. Further, the on-off valve device 20 is disposed on the lower side of the operating force transmission member 26, and a main valve body pressing member 28 forming a pressure chamber, and a valve seat member disposed on the lower side of the main valve body pressing member 28. 30 and a cover 32 that surrounds the above members and restrains each member at a predetermined position.

また、主弁体押え部材２８とバルブ台座部材３０の間には、主弁体３４が挟み込まれ、主弁体３４を所定の位置に位置決めしている。さらに、主弁体押え部材２８によって形成される圧力室の内部には、流量調整部材３６が、操作力伝達部材２６と螺合された状態で配置されている。また、ガイド部材２４の中心軸線上には、下方に向って押し棒３８が取り付けられている。この押し棒３８の下端にはパイロット弁４０が摺動自在に取り付けられ、このパイロット弁４０の先端にはパッキン４２が取り付けられている。 A main valve body 34 is sandwiched between the main valve body pressing member 28 and the valve seat member 30 to position the main valve body 34 at a predetermined position. Further, a flow rate adjusting member 36 is disposed inside the pressure chamber formed by the main valve body pressing member 28 in a state of being screwed with the operation force transmitting member 26. Further, on the central axis of the guide member 24, a push bar 38 is attached downward. A pilot valve 40 is slidably attached to the lower end of the push rod 38, and a packing 42 is attached to the tip of the pilot valve 40.

操作部２２は、上端部が閉鎖された概ね円筒状の形状であり、頂部にはハンドル部１２をネジ止めするためのネジ部２２ａが形成されている。また、操作部２２の側面は下方の直径が拡大されており、肩部２２ｂを構成している。 The operation portion 22 has a substantially cylindrical shape with the upper end closed, and a screw portion 22a for screwing the handle portion 12 is formed on the top portion. Further, the side surface of the operation unit 22 has an enlarged lower diameter and constitutes a shoulder portion 22b.

図７は、ガイド部材２４の斜視図である。ガイド部材２４は、円周上の４箇所が切り欠かれた概ね円筒状の形態を有する。ガイド部材２４の側面２箇所には爪部２４ａ（一つのみ図示）が形成されている。この爪部２４ａは、ガイド部材２４が操作部２２の中に受け入れられたとき、ガイド部材２４から半径方向外方に向って突出して、ガイド部材２４を操作部２２の中に固定する。これにより、ガイド部材２４は、操作部２２に対して、平行移動も、回転も拘束される。さらに、ガイド部材の上端面には、ハートカム機構を構成するピン部材４４を受け入れるための溝２４ｂが形成されている。ハートカム機構については後述する。 FIG. 7 is a perspective view of the guide member 24. The guide member 24 has a substantially cylindrical shape in which four locations on the circumference are cut out. Claw portions 24 a (only one is shown) are formed at two positions on the side surface of the guide member 24. When the guide member 24 is received in the operation portion 22, the claw portion 24 a protrudes radially outward from the guide member 24 and fixes the guide member 24 in the operation portion 22. As a result, the guide member 24 is restrained from translation and rotation with respect to the operation unit 22. Further, a groove 24b for receiving the pin member 44 constituting the heart cam mechanism is formed on the upper end surface of the guide member. The heart cam mechanism will be described later.

図８（ａ）は操作力伝達部材２６の斜視図であり、（ｂ）は、上面図である。図８に示すように、操作力伝達部材２６は、概ね十字型の断面を有する上側部２６ａと、この上側部２６ａの下に形成された概ね円板状の鍔部２６ｂと、この鍔部２６ｂの下側に形成された雄ねじ山を有する下側部２６ｃと、を有する。十字型断面の上側部２６ａは、ガイド部材２４の中に摺動自在に受け入れられる。従って、操作力伝達部材２６は、ガイド部材２４に対して軸線方向に摺動することは許容されるが、ガイド部材２４に対する回転は拘束される。また、上側部２６ａの両側側面には、概ね門形に折り曲げられたピン部材４４の先端を受け入れるためのハートカム溝２６ｄが形成されている。操作力伝達部材２６の中心軸線上には、操作力伝達部材２６を貫通するボア２６ｅが形成されている。さらに、操作力伝達部材２６の鍔部２６ｂと操作部２２の肩部２２ｂとの間には、付勢用バネ４６が配置されており、操作部２２を操作力伝達部材２６に対して上方に付勢している。 FIG. 8A is a perspective view of the operating force transmission member 26, and FIG. 8B is a top view. As shown in FIG. 8, the operating force transmission member 26 includes an upper portion 26a having a substantially cross-shaped cross section, a generally disc-shaped flange portion 26b formed under the upper portion 26a, and the flange portion 26b. And a lower side portion 26c having a male screw thread formed on the lower side. The upper portion 26 a of the cross-shaped cross section is slidably received in the guide member 24. Therefore, the operating force transmission member 26 is allowed to slide in the axial direction with respect to the guide member 24, but the rotation with respect to the guide member 24 is restricted. Further, on both side surfaces of the upper portion 26a, a heart cam groove 26d for receiving the tip of the pin member 44 bent in a generally gate shape is formed. On the central axis of the operation force transmission member 26, a bore 26e that penetrates the operation force transmission member 26 is formed. Further, an urging spring 46 is disposed between the collar portion 26 b of the operation force transmission member 26 and the shoulder portion 22 b of the operation portion 22, and the operation portion 22 is moved upward with respect to the operation force transmission member 26. Energized.

図９は、主弁体押え部材２８の斜視図である。主弁体押え部材２８は、上端面が閉鎖した概ね円筒状の形状を有し、上端面には操作力伝達部材２６の下側部２６ｃを通すための穴２８ａが形成されている。この穴２８ａと操作力伝達部材２６の下側部２６ｃとの間には、Ｏリング４８が配置され、圧力室内の水密性を保持している。また、主弁体押え部材２８の内側円周面の上方には、三角形断面の歯形を有するスプライン２８ｂが形成されている。さらに、主弁体押え部材２８の下端面には、主弁体３４を押さえるための環状の溝２８ｃが形成されている。 FIG. 9 is a perspective view of the main valve body pressing member 28. The main valve body pressing member 28 has a substantially cylindrical shape with its upper end surface closed, and a hole 28a for allowing the lower portion 26c of the operating force transmission member 26 to pass therethrough is formed on the upper end surface. An O-ring 48 is disposed between the hole 28a and the lower side portion 26c of the operating force transmission member 26 to maintain water tightness in the pressure chamber. A spline 28b having a triangular tooth profile is formed above the inner circumferential surface of the main valve body pressing member 28. Further, an annular groove 28 c for pressing the main valve body 34 is formed on the lower end surface of the main valve body pressing member 28.

図１０は、流量調整部材３６の斜視図である。流量調整部材３６は、概ねドーナツ形の円板状であり、その外周部には主弁体押え部材２８に形成されたスプライン２８ｂと係合するスプライン３６ａが形成されており、その内周部には操作力伝達部材２６の下側部２６ｃに形成された雄ねじ山と螺合される雌ネジ部３６ｂが形成されている。また、流量調整部材３６の円周上の１箇所には、クリーニングピン５０を通す穴３６ｃが形成されている。従って、流量調整部材３６は、主弁体押え部材２８の内部に配置されると、スプライン２８ｂとスプライン３６ａが係合して、主弁体押え部材２８に対する回転が拘束される。また、流量調整部材３６は、雌ネジ部３６ｂが操作力伝達部材２６の雄ねじ山と螺合されているので、操作力伝達部材２６が主弁体押え部材２８に対して回転されると、軸線方向に平行移動される。操作力伝達部材２６と主弁体押え部材２８に形成されたスプライン２８ｂは、流量調整部材移動機構を構成する。 FIG. 10 is a perspective view of the flow rate adjusting member 36. The flow rate adjusting member 36 has a generally donut-shaped disk shape, and a spline 36a that engages with a spline 28b formed on the main valve body pressing member 28 is formed on the outer peripheral portion thereof, and the inner peripheral portion thereof. A female screw portion 36b is formed which is screwed with a male screw thread formed on the lower side portion 26c of the operating force transmission member 26. In addition, a hole 36 c through which the cleaning pin 50 is passed is formed at one place on the circumference of the flow rate adjusting member 36. Therefore, when the flow rate adjusting member 36 is disposed inside the main valve body pressing member 28, the spline 28b and the spline 36a are engaged, and the rotation with respect to the main valve body pressing member 28 is restricted. In addition, since the female screw portion 36 b is screwed with the male screw thread of the operating force transmission member 26, the flow rate adjusting member 36 has an axis line when the operating force transmission member 26 is rotated with respect to the main valve body pressing member 28. Translated in the direction. The spline 28b formed in the operating force transmission member 26 and the main valve body pressing member 28 constitutes a flow rate adjusting member moving mechanism.

図１１は、主弁体３４の斜視図である。主弁体３４は概ね円板状であり、その中心部には圧力開放穴３４ａが形成され、外周部にはダイヤフラム部３４ｂが構成されている。ダイヤフラム部３４ｂの最外周部は、主弁体押え部材２８の下端面に形成された環状の溝２８ｃの中に受け入れられ、主弁体３４と主弁体押え部材２８の間の水密性が確保されている。また、主弁体３４の円周上の１箇所には、クリーニングピン５０を通す穴３４ｃが形成されている。クリーニングピン５０は、主弁体３４の穴３４ｃを貫通するように配置され、穴３４ｃの詰まりを防止する。 FIG. 11 is a perspective view of the main valve element 34. The main valve body 34 has a generally disc shape, a pressure release hole 34a is formed at the center thereof, and a diaphragm portion 34b is formed at the outer peripheral portion. The outermost peripheral portion of the diaphragm portion 34b is received in an annular groove 28c formed in the lower end surface of the main valve body pressing member 28, and water tightness between the main valve body 34 and the main valve body pressing member 28 is ensured. Has been. A hole 34c through which the cleaning pin 50 passes is formed at one place on the circumference of the main valve body 34. The cleaning pin 50 is disposed so as to penetrate the hole 34c of the main valve body 34, and prevents the hole 34c from being clogged.

バルブ台座部材３０は、下部で連結された二重の円筒状の形状を有し、主弁体押え部材２８の下側に配置される。外側の円筒の側面には、水が流入する流入口３０ａが４つ形成されており、外側の円筒の上端部と主弁体押え部材２８の下端面との間に主弁体３４が挟まれる。また、内側の円筒の上端は、主弁体３４が着座する弁座３０ｂとして形成されている。流入口３０ａから流入した水は、一旦上方へ上り、弁座３０ｂと主弁体３４との間を通って内側の円筒の中に入り、内側の円筒の下端から流出するように構成されている。 The valve seat member 30 has a double cylindrical shape connected at the lower portion, and is disposed below the main valve body pressing member 28. Four inflow ports 30 a into which water flows are formed on the side surface of the outer cylinder, and the main valve body 34 is sandwiched between the upper end portion of the outer cylinder and the lower end surface of the main valve body pressing member 28. . The upper end of the inner cylinder is formed as a valve seat 30b on which the main valve body 34 is seated. The water flowing in from the inflow port 30a once rises upward, passes between the valve seat 30b and the main valve body 34, enters the inner cylinder, and flows out from the lower end of the inner cylinder. .

図１２（ａ）は、カバー３２を側方から見た斜視図であり、（ｂ）は斜め下方から見た斜視図である。カバー３２は、下側が拡張した段付きの円筒状の形状を有する。カバー３２の上端には縁部３２ａが形成されており、この縁部３２ａには、カバー３２の内部に受け入れられた操作部２２の外側の段部が係合するようになっている。また、カバー３２の側面２箇所には、長孔３２ｂ（１つのみ図示）が形成されており、主弁体押え部材２８の側面２箇所から外方に突出した爪部２８ｄ（１つのみ図示）を受け入れるようになっている。さらに、舌部３２ｃが、カバー３２の下端２箇所から下方に延びており、この舌部３２ｃにも長孔３２ｄが夫々形成されている。この長孔３２ｄは、バルブ台座部材３０の上部側面２箇所から外方に突出した爪部３０ｃを受け入れるようになっている。各長孔３２ｂ、３２ｄが各爪部２８ｄ、３０ｃを夫々受け入れることにより、主弁体押え部材２８及びバルブ台座部材３０は、カバー３２の中の適所に保持される。また、これにより、ガイド部材２４及び操作力伝達部材２６も、操作部２２と主弁体押え部材２８の間に挟まれて適所に保持される。 12A is a perspective view of the cover 32 as viewed from the side, and FIG. 12B is a perspective view of the cover 32 as viewed obliquely from below. The cover 32 has a stepped cylindrical shape with an expanded lower side. An edge portion 32 a is formed at the upper end of the cover 32, and a stepped portion outside the operation portion 22 received inside the cover 32 is engaged with the edge portion 32 a. Further, elongated holes 32b (only one is shown) are formed at two locations on the side surface of the cover 32, and claw portions 28d (only one is shown) projecting outward from the two locations on the side surface of the main valve body pressing member 28. ). Further, the tongue portion 32c extends downward from the two lower ends of the cover 32, and a long hole 32d is formed in the tongue portion 32c. The elongated hole 32d is configured to receive the claw portion 30c protruding outward from two locations on the upper side surface of the valve seat member 30. The main valve body pressing member 28 and the valve pedestal member 30 are held at appropriate positions in the cover 32 by the long holes 32b and 32d receiving the claw portions 28d and 30c, respectively. As a result, the guide member 24 and the operating force transmission member 26 are also sandwiched between the operating portion 22 and the main valve body pressing member 28 and held in place.

操作部２２及びガイド部材２４は、カバー３２によって、上下方向の平行移動及び軸線を中心とする回転可能に保持される。操作力伝達部材２６はガイド部材２４に対する回転が拘束されているので、操作部２２及びガイド部材２４が回転されると、操作力伝達部材２６はそれらと共に回転される。また、操作力伝達部材２６は、その鍔部２６ｂの最外周部が、カバー３２の内側の段部３２ｅと係合しているので、上下方向の平行移動はカバー３２によって拘束されている。さらに、カバー３２の段部３２ｅには、ストッパー３２ｆが形成されており、このストッパー３２ｆは、操作力伝達部材２６の外周部に設けられた第１ストッパー当接部２６ｆ及び第２ストッパー当接部２６ｇと当接するようになっている。従って、操作力伝達部材２６のカバー３２に対する回転は、ストッパー３２ｆの一方の端部と第１ストッパー当接部２６ｆが当接する位置から、ストッパー３２ｆの他方の端部と第２ストッパー当接部２６ｇが当接する位置までの範囲に限定される。操作部２２及びガイド部材２４の操作力伝達部材２６に対する回転は拘束されているので、操作部２２及びガイド部材２４の回転もこの範囲に限定される。 The operation unit 22 and the guide member 24 are held by the cover 32 so as to be able to translate in the vertical direction and rotate around the axis. Since the operation force transmission member 26 is restricted from rotating with respect to the guide member 24, when the operation unit 22 and the guide member 24 are rotated, the operation force transmission member 26 is rotated together therewith. Further, since the outermost peripheral portion of the flange portion 26 b of the operating force transmission member 26 is engaged with the step portion 32 e inside the cover 32, the vertical movement is restricted by the cover 32. Further, a stopper 32 f is formed on the step 32 e of the cover 32, and the stopper 32 f is a first stopper abutting portion 26 f and a second stopper abutting portion provided on the outer peripheral portion of the operating force transmission member 26. It comes into contact with 26g. Accordingly, the rotation of the operating force transmission member 26 with respect to the cover 32 causes the other end of the stopper 32f and the second stopper abutting portion 26g from the position where one end of the stopper 32f abuts the first stopper abutting portion 26f. It is limited to the range up to the position where the abuts. Since the rotation of the operation unit 22 and the guide member 24 with respect to the operation force transmission member 26 is restricted, the rotation of the operation unit 22 and the guide member 24 is also limited to this range.

また、カバー３２の底部３２ｇの一部は、主弁体押え部材２８と直接当接するように構成されている。このため、締付けナット２１によって開閉弁装置２０を本体部１０に取り付ける際に、締付けナット２１がカバー３２を下方に押さえつけたとしても、カバー３２と主弁体押え部材２８の間には所定の隙間が確保されるので、操作力伝達部材２６の鍔部２６ｂがカバー３２と主弁体押え部材２８の間に挟まれて、操作力伝達部材２６の回転が阻害されることはない。 Further, a part of the bottom 32g of the cover 32 is configured to directly contact the main valve body pressing member 28. For this reason, even when the clamping nut 21 presses the cover 32 downward when the on-off valve device 20 is attached to the main body 10 by the clamping nut 21, a predetermined gap is provided between the cover 32 and the main valve body pressing member 28. Therefore, the flange portion 26b of the operating force transmission member 26 is sandwiched between the cover 32 and the main valve body pressing member 28, and the rotation of the operating force transmission member 26 is not hindered.

押し棒３８は、その上端がガイド部材２４の中心に取り付けられ、下端は、操作力伝達部材２６のボア２６ｅの中へ延びている。押し棒３８とボア２６ｅの間には、Ｏリング５２が配置され、圧力室内部の水密性が確保されている。押し棒３８の下端には拡張部３８ａが形成されている。 An upper end of the push rod 38 is attached to the center of the guide member 24, and a lower end thereof extends into the bore 26 e of the operation force transmission member 26. An O-ring 52 is disposed between the push rod 38 and the bore 26e to ensure water tightness in the pressure chamber. An extended portion 38 a is formed at the lower end of the push rod 38.

パイロット弁４０は概ね円柱状の形状を有し、操作力伝達部材２６のボア２６ｅの中に配置されている。パイロット弁４０の内部には中空部４０ａが形成されており、中空部４０ａは、押し棒３８下端の拡張部３８ａを摺動可能に受け入れている。また、中空部４０ａの中には、コイルバネ５４が配置されており、押し棒３８を、パイロット弁４０に対して上方に付勢している。また、パイロット弁４０の下端には、パッキン４２が取り付けられている。パイロット弁４０が下方に押し下げられると、パッキン４２が主弁体３４に当接して、圧力開放穴３４ａを閉鎖するように構成されている。 The pilot valve 40 has a generally cylindrical shape and is disposed in the bore 26e of the operating force transmission member 26. A hollow portion 40a is formed inside the pilot valve 40, and the hollow portion 40a slidably receives the extended portion 38a at the lower end of the push rod 38. In addition, a coil spring 54 is disposed in the hollow portion 40 a and urges the push rod 38 upward with respect to the pilot valve 40. A packing 42 is attached to the lower end of the pilot valve 40. When the pilot valve 40 is pushed down, the packing 42 contacts the main valve body 34 to close the pressure release hole 34a.

なお、本実施形態においては、主弁体３４の上側の面、主弁体押え部材２８の内壁面、及び操作力伝達部材２６のボア２６ｅの内壁によって囲まれた空間が、圧力室として作用する。主弁体３４と主弁体押え部材２８の間は、主弁体３４のダイヤフラム部３４ｂの最外周部が、主弁体押え部材２８の環状の溝２８ｃの中に嵌め込まれることによって水密性が確保されている。また、主弁体押え部材２８と操作力伝達部材２６の間の水密性はＯリング４８によって、操作力伝達部材２６のボア２６ｅと押し棒３８の間の水密性はＯリング５２によって水密性が確保されている。流量調整部材３６は、このように水密性が確保された圧力室の内部に配置されているので、流量調整部材３６と他の部材との間の水密性を確保する必要はなく、流量調整部材３６にＯリング等の部材を取り付ける必要はない。 In the present embodiment, the space surrounded by the upper surface of the main valve body 34, the inner wall surface of the main valve body pressing member 28, and the inner wall of the bore 26e of the operating force transmission member 26 acts as a pressure chamber. . Between the main valve body 34 and the main valve body pressing member 28, the outermost peripheral portion of the diaphragm portion 34 b of the main valve body 34 is fitted into the annular groove 28 c of the main valve body pressing member 28, thereby providing water tightness. It is secured. Further, the water tightness between the main valve body pressing member 28 and the operating force transmitting member 26 is improved by the O-ring 48, and the water tightness between the bore 26 e of the operating force transmitting member 26 and the push rod 38 is improved by the O-ring 52. It is secured. Since the flow rate adjusting member 36 is arranged inside the pressure chamber in which water tightness is ensured in this way, it is not necessary to ensure water tightness between the flow rate adjusting member 36 and other members, and the flow rate adjusting member It is not necessary to attach a member such as an O-ring to 36.

次に、図８を参照して、ハートカム機構について説明する。ハートカム機構は操作力伝達部材２６の上側部２６ａに形成されたハートカム溝２６ｄと、ガイド部材２４に保持されたピン部材４４によって構成される。ハートカム機構は、ピン部材４４の下端の内側に折り曲げられた端部４４ａが、ハートカム溝２６ｄ内の種々の位置を取ることによって、操作部２２を所定の位置に保持するものである。まず、開閉弁装置２０が止水状態にある場合には、ピン部材４４の端部４４ａは、ハートカム溝２６ｄのＡの位置に保持されている。次いで、付勢用バネ４６の付勢力に抗して、操作部２２を最大押し込み位置まで押し込むと、ピン部材４４は操作部２２と共に押し下げられ、ピン部材４４の端部４４ａは、ハートカム溝２６ｄの下方のＢの位置に移動する。この状態で操作部２２から手を放すと、操作部２２は、付勢用バネ４６の付勢力によって、操作部２２の外側の段部とカバー３２の縁部３２ａが係合する位置まで押し上げられる。このとき、ピン部材４４の端部４４ａは、ハートカム溝２６ｄの上方のＣの位置に移動し、開閉弁装置２０は、吐水状態となる。この吐水状態から、付勢用バネ４６の付勢力に抗して、操作部２２を最大押し込み位置まで押し込むと、ピン部材４４は操作部２２と共に押し下げられ、ピン部材４４の端部４４ａは、ハートカム溝２６ｄの下方のＤの位置に移動する。この状態で操作部２２から手を放すと、操作部２２は、付勢用バネ４６の付勢力によって上方に押し上げられるが、この際、ピン部材４４の端部４４ａが、ハートカム溝２６ｄのＡの位置に保持されるため、操作部２２もこの位置に保持され、止水状態となる。 Next, the heart cam mechanism will be described with reference to FIG. The heart cam mechanism includes a heart cam groove 26 d formed in the upper portion 26 a of the operating force transmission member 26 and a pin member 44 held by the guide member 24. In the heart cam mechanism, the end 44a bent inside the lower end of the pin member 44 takes various positions in the heart cam groove 26d, thereby holding the operating portion 22 in a predetermined position. First, when the on-off valve device 20 is in a water stop state, the end portion 44a of the pin member 44 is held at the position A of the heart cam groove 26d. Next, when the operating portion 22 is pushed to the maximum pushing position against the urging force of the urging spring 46, the pin member 44 is pushed down together with the operating portion 22, and the end 44a of the pin member 44 is formed in the heart cam groove 26d. Move to position B below. When the hand is released from the operation unit 22 in this state, the operation unit 22 is pushed up to a position where the stepped portion outside the operation unit 22 and the edge portion 32a of the cover 32 are engaged by the urging force of the urging spring 46. . At this time, the end 44a of the pin member 44 moves to a position C above the heart cam groove 26d, and the on-off valve device 20 enters a water discharge state. When the operating portion 22 is pushed down to the maximum pushing position against the urging force of the urging spring 46 from this water discharge state, the pin member 44 is pushed down together with the operating portion 22, and the end portion 44a of the pin member 44 has a heart cam. It moves to the position D below the groove 26d. If the hand is released from the operating portion 22 in this state, the operating portion 22 is pushed upward by the biasing force of the biasing spring 46. At this time, the end portion 44a of the pin member 44 is moved to the A of the heart cam groove 26d. Since it is held at the position, the operation unit 22 is also held at this position and enters a water-stopping state.

次に、図５、図６、図１３及び図１４を参照して、本発明の実施形態による水栓装置１の作用を説明する。図６は、止水状態にある開閉弁装置２０を示し、図５は吐水流量を最大にした吐水状態の開閉弁装置２０を示し、図１３はこの状態における図５のXIII−XIII断面を示す図である。また、図１４（ａ）は、吐水流量を最少にした吐水状態の開閉弁装置２０の全断面図であり、（ｂ）はこの状態における（ａ）のXIVb−XIVb断面を示す図である。 Next, the operation of the faucet device 1 according to the embodiment of the present invention will be described with reference to FIGS. 5, 6, 13 and 14. 6 shows the on-off valve device 20 in the water stop state, FIG. 5 shows the on-off valve device 20 in the water discharge state with the maximum water discharge flow rate, and FIG. 13 shows the XIII-XIII cross section of FIG. 5 in this state. FIG. Moreover, Fig.14 (a) is the whole sectional view of the on-off valve apparatus 20 of the water discharge state which made the water discharge flow volume the minimum, (b) is a figure which shows the XIVb-XIVb cross section of (a) in this state.

まず、図６に示す止水状態においては、ピン部材４４の端部４４ａは、ハートカム溝２６ｄのＡの位置に保持されており、この位置では、ハンドル部１２は、図２（ａ）に示すように台座部１４と同一面上にある。また、この位置では、パイロット弁４０のパッキン４２は、主弁体３４に当接して、圧力開放穴３４ａを閉鎖している。圧力開放穴３４ａが閉鎖された状態においては、流入口３０ａから穴３４ｃを通って圧力室内に流入した水は、流出することができないので、圧力室内の圧力が高くなり、主弁体３４は弁座３０ｂに押し付けられて、開閉弁装置２０が閉鎖される。 First, in the water stop state shown in FIG. 6, the end portion 44a of the pin member 44 is held at the position A of the heart cam groove 26d. At this position, the handle portion 12 is shown in FIG. Thus, it is on the same plane as the pedestal 14. Further, at this position, the packing 42 of the pilot valve 40 contacts the main valve body 34 and closes the pressure release hole 34a. In the state where the pressure release hole 34a is closed, the water flowing into the pressure chamber from the inlet 30a through the hole 34c cannot flow out, so that the pressure in the pressure chamber increases, and the main valve body 34 The on-off valve device 20 is closed by being pressed against the seat 30b.

次に、ハンドル部１２を一旦押圧して手を放すと、ピン部材４４の端部４４ａは、ハートカム溝２６ｄのＣの位置に移動し、図５に示すように、操作部２２も上方に移動する。このとき、ハンドル部１２は、図２（ｂ）に示す突出した状態になる。この状態では、パイロット弁４０も押し棒３８によって操作部２２と共に上方に引き上げられるので、パイロット弁４０のパッキン４２は、主弁体３４から離れ、圧力開放穴３４ａが開放される。圧力開放穴３４ａが開放された状態では、穴３４ｃを通って圧力室内に流入した水は、圧力開放穴３４ａを通って流出するので、圧力室内の圧力は低下する。圧力室内の圧力が低下すると、主弁体３４を弁座３０ｂに押し付ける力が作用しなくなり、主弁体３４は上方に移動する。上方に移動した主弁体３４は、圧力室内に配置されている流量調整部材３６に当接した位置で保持される。主弁体３４が弁座３０ｂから離れて開閉弁装置２０が開くと、流入口３０ａから流入した水は、弁座３０ｂを通って下方に流出し、スパウト部９の吐水口から吐水される。 Next, once the handle portion 12 is pressed and released, the end portion 44a of the pin member 44 moves to the position C of the heart cam groove 26d, and the operation portion 22 also moves upward as shown in FIG. To do. At this time, the handle portion 12 is in a protruding state shown in FIG. In this state, the pilot valve 40 is also lifted upward together with the operating portion 22 by the push rod 38, so that the packing 42 of the pilot valve 40 is separated from the main valve body 34, and the pressure release hole 34a is opened. In the state where the pressure release hole 34a is opened, the water flowing into the pressure chamber through the hole 34c flows out through the pressure release hole 34a, so the pressure in the pressure chamber decreases. When the pressure in the pressure chamber decreases, the force for pressing the main valve element 34 against the valve seat 30b does not act, and the main valve element 34 moves upward. The main valve element 34 moved upward is held at a position in contact with the flow rate adjusting member 36 disposed in the pressure chamber. When the main valve body 34 moves away from the valve seat 30b and the on-off valve device 20 opens, the water that flows in from the inflow port 30a flows downward through the valve seat 30b and is discharged from the spout of the spout unit 9.

図５に示す吐水状態では、流量調整部材３６は、圧力室内で最も上方の位置にあるので、流量調整部材３６に当接する位置にある主弁体３４は、弁座３０ｂから最も離れた位置にある。この状態では、開閉弁装置２０からの吐水流量が最も多くなる。また、図５に示す流量調整部材３６が最も上方の位置にある状態では、図１３に示すように、カバー３２のストッパー３２ｆの一方の端部と、操作力伝達部材２６の第２ストッパー当接部２６ｇが当接するので、カバー３２に対して操作力伝達部材２６を、流量調整部材３６を上方に移動させる方向にそれ以上回転させることができなくなる。 In the water discharge state shown in FIG. 5, the flow rate adjusting member 36 is at the uppermost position in the pressure chamber, so the main valve body 34 that is in contact with the flow rate adjusting member 36 is at the position farthest from the valve seat 30 b. is there. In this state, the water discharge flow rate from the on-off valve device 20 is the largest. In the state where the flow rate adjusting member 36 shown in FIG. 5 is in the uppermost position, as shown in FIG. 13, one end of the stopper 32f of the cover 32 and the second stopper contact of the operating force transmitting member 26 are brought into contact. Since the portion 26g comes into contact with the cover 32, the operating force transmission member 26 cannot be further rotated in the direction in which the flow rate adjusting member 36 is moved upward.

吐水状態において、ハンドル部１２を回転させると（図３参照）、ハンドル部１２に固定された操作部２２、操作部２２に固定されたガイド部材２４、及びガイド部材２４に対する回転が拘束された操作力伝達部材２６も共に回転される。操作力伝達部材２６が回転されると、内周が操作力伝達部材２６の下側部２６ｃに螺合され、外周が主弁体押え部材２８のスプライン２８ｂによって回転を拘束されている流量調整部材３６は、圧力室の内部で上下方向に平行移動される。図５及び図１３に示す状態から、ハンドル部１２を右に回転させると、操作力伝達部材２６も右に回転し、流量調整部材３６は下方に移動する。操作力伝達部材２６を右に回転させていくと、図１４（ｂ）に示すように、操作力伝達部材２６の第１ストッパー当接部２６ｆは、カバー３２のストッパー３２ｆの他方の端に当接し、これ以上右に回転させることができなくなる。この状態では、図１４（ａ）に示すように、流量調整部材３６は、最も下方の位置に移動する。図１４（ａ）に示す状態では、流量調整部材３６に当接する主弁体３４は、弁座３０ｂに非常に近い位置に保持されるので、主弁体３４の圧力開放穴３４ａが開放された開弁状態であっても、開閉弁装置２０から吐水される流量は非常に少なくなる。本実施形態においては、第１ストッパー当接部２６ｆにより、流量調整部材３６が主弁体３４と弁座３０ｂの間に僅かに隙間ができる位置までしか移動できないように、操作力伝達部材２６の回転を規制しているので、吐水流量を最も少なくした状態においても、毎分約１リットルの水が吐水される。このため、吐水量を最も絞った状態においても、開閉弁装置２０が吐水状態にあることが、水栓装置１の使用者に認識される。また、第１ストッパー当接部２６ｆによって操作力伝達部材２６の回転を規制しているので、操作力伝達部材２６の回転により流量調整部材３６を介して主弁体３４を弁座３０ｂに押し付けることがないので、操作力伝達部材２６に大きな力が作用することはない。 When the handle portion 12 is rotated in the water discharge state (see FIG. 3), the operation portion 22 fixed to the handle portion 12, the guide member 24 fixed to the operation portion 22, and the operation in which rotation with respect to the guide member 24 is restricted. The force transmission member 26 is also rotated together. When the operating force transmission member 26 is rotated, the inner periphery is screwed into the lower portion 26c of the operating force transmission member 26, and the outer periphery is constrained to rotate by the spline 28b of the main valve body pressing member 28. 36 is translated in the vertical direction inside the pressure chamber. When the handle portion 12 is rotated to the right from the state shown in FIGS. 5 and 13, the operating force transmission member 26 is also rotated to the right, and the flow rate adjusting member 36 is moved downward. When the operation force transmission member 26 is rotated to the right, the first stopper contact portion 26f of the operation force transmission member 26 contacts the other end of the stopper 32f of the cover 32 as shown in FIG. Will not be able to rotate further to the right. In this state, as shown in FIG. 14A, the flow rate adjusting member 36 moves to the lowest position. In the state shown in FIG. 14A, the main valve body 34 that contacts the flow rate adjusting member 36 is held at a position very close to the valve seat 30b, so that the pressure release hole 34a of the main valve body 34 is opened. Even in the open state, the flow rate discharged from the on-off valve device 20 is very small. In the present embodiment, the first stopper abutment portion 26f allows the flow rate adjustment member 36 to move only to a position where there is a slight gap between the main valve body 34 and the valve seat 30b. Since the rotation is restricted, about 1 liter of water is discharged per minute even in the state where the discharged water flow rate is minimized. For this reason, the user of the faucet device 1 recognizes that the on-off valve device 20 is in a water discharge state even in a state where the amount of water discharge is minimized. Further, since the rotation of the operating force transmission member 26 is restricted by the first stopper contact portion 26f, the main valve body 34 is pressed against the valve seat 30b through the flow rate adjusting member 36 by the rotation of the operating force transmission member 26. Therefore, a large force does not act on the operating force transmission member 26.

次に、吐水状態において、ハンドル部１２を再び押圧操作すると、ピン部材４４の端部４４ａは、ハートカム溝２６ｄのＡの位置に移動し、図６に示すように、操作部２２も下方に移動する。このとき、ハンドル部１２は、図２（ａ）に示すように台座部１４と同一面上にある状態になる。この状態では、パイロット弁４０も押し棒３８によって操作部２２と共に下方に押し下げられるので、パイロット弁４０のパッキン４２が主弁体３４の圧力開放穴３４ａを閉鎖し、主弁体３４も閉鎖される。また、流量調整部材３６の位置は、ハンドル部１２の押圧操作によって変化しないので、ハンドル部１２をもう一度押圧操作して、開閉弁装置２０を吐水状態としたときには、前回設定された吐水流量で吐水される。 Next, when the handle portion 12 is pressed again in the water discharge state, the end portion 44a of the pin member 44 moves to the position A of the heart cam groove 26d, and the operation portion 22 also moves downward as shown in FIG. To do. At this time, the handle portion 12 is in the same plane as the pedestal portion 14 as shown in FIG. In this state, the pilot valve 40 is also pushed down together with the operating portion 22 by the push rod 38, so the packing 42 of the pilot valve 40 closes the pressure release hole 34a of the main valve body 34, and the main valve body 34 is also closed. . Further, since the position of the flow rate adjusting member 36 does not change by the pressing operation of the handle portion 12, when the handle portion 12 is pressed once again and the on-off valve device 20 is discharged, water discharge is performed at the previously set water discharge flow rate. Is done.

本発明の実施形態の水栓装置によれば、ハンドル部１２（操作部２２）を押圧操作することにより止水と吐水を切り替え、また、ハンドル部１２（操作部２２）を回転操作することにより、吐水流量を調整することができる。即ち、単一の操作部の押圧操作及び回転操作により、止水、吐水及び流量の調整を行うことができる。また、流量調整部材３６を圧力室の内部に配置しているため、開閉弁装置２０全体を小型化することができる。また、流量調整部材３６を圧力室の内部に配置したため、操作力伝達部材２６と主弁体押え部材２８の間の水密性を確保するためのシール部材であるＯリングを小型化することが可能になる。これにより、流量調整部材３６を移動させるために操作部を回転させる際の摺動抵抗を小さくすることができるので、操作部を小型に設計することが可能になる。 According to the faucet device of the embodiment of the present invention, the handle portion 12 (operation portion 22) is pressed to switch between water stop and water discharge, and the handle portion 12 (operation portion 22) is rotated. The water discharge flow rate can be adjusted. That is, it is possible to adjust the water stop, water discharge, and flow rate by pressing and rotating the single operation unit. Further, since the flow rate adjusting member 36 is disposed inside the pressure chamber, the entire on-off valve device 20 can be reduced in size. Further, since the flow rate adjusting member 36 is disposed inside the pressure chamber, it is possible to reduce the size of the O-ring that is a seal member for ensuring watertightness between the operating force transmission member 26 and the main valve body pressing member 28. become. Thereby, since the sliding resistance at the time of rotating an operation part in order to move the flow volume adjustment member 36 can be made small, it becomes possible to design an operation part small.

上述した実施形態では、水栓装置は、温調操作部及びスパウト部を備えていたが、温調操作部は省略することもできる。また、水栓装置は、スパウト部に加えて、或いは、スパウト部の代りにシャワーヘッドを備えていても良い。 In the embodiment described above, the faucet device includes the temperature adjustment operation unit and the spout unit, but the temperature adjustment operation unit may be omitted. Moreover, the faucet device may include a shower head in addition to the spout part or instead of the spout part.

また、上述した実施形態では、操作力伝達部材と流量調整部材が螺合され、流量調整部材は主弁体押え部材に構成されたスプラインによってその回転を拘束されていたが、変形例として、この関係を逆にすることもできる。即ち、操作力伝達部材と流量調整部材の間にスプラインを形成してそれらの間の相対的な回転を拘束し、流量調整部材の外周に雄ネジを、主弁体押え部材に雌ネジを形成してそれらを螺合させても良い。この変形例においては、回転操作によって操作力伝達部材が回転されると、流量調整部材も共に回転され、流量調整部材の外周のネジの作用によって流量調整部材が平行に移動される。 In the above-described embodiment, the operating force transmission member and the flow rate adjusting member are screwed together, and the flow rate adjusting member is constrained to rotate by a spline formed on the main valve body pressing member. You can also reverse the relationship. That is, a spline is formed between the operating force transmission member and the flow rate adjusting member to restrain the relative rotation between them, and a male screw is formed on the outer periphery of the flow rate adjusting member, and a female screw is formed on the main valve body pressing member. Then, they may be screwed together. In this modified example, when the operating force transmission member is rotated by the rotation operation, the flow rate adjusting member is also rotated, and the flow rate adjusting member is moved in parallel by the action of the screw on the outer periphery of the flow rate adjusting member.

本発明の実施形態の水栓装置を組み込んだ流し台を示す斜視図である。It is a perspective view showing a sink incorporating a faucet device of an embodiment of the present invention. 本発明の実施形態の水栓装置の水栓本体部の拡大斜視図である。It is an expansion perspective view of the faucet body part of the faucet device of an embodiment of the present invention. 本発明の実施形態の水栓装置の水栓本体部の断面図である。It is sectional drawing of the faucet main-body part of the faucet apparatus of embodiment of this invention. 本発明の実施形態の水栓装置に組み込まれている開閉弁装置の斜視図である。It is a perspective view of the on-off valve device incorporated in the faucet device of the embodiment of the present invention. 本発明の実施形態の水栓装置に組み込まれている開閉弁装置の吐水状態における断面図である。It is sectional drawing in the water discharging state of the on-off valve apparatus incorporated in the faucet apparatus of embodiment of this invention. 本発明の実施形態の水栓装置に組み込まれている開閉弁装置の止水状態における断面図である。It is sectional drawing in the water stop state of the on-off valve apparatus incorporated in the faucet device of the embodiment of the present invention. ガイド部材の斜視図である。It is a perspective view of a guide member. 操作力伝達部材の（ａ）斜視図、及び（ｂ）上面図である。It is (a) perspective view and (b) top view of an operation force transmission member. 主弁体押え部材の斜視図である。It is a perspective view of a main valve body pressing member. 流量調整部材の斜視図である。It is a perspective view of a flow control member. 主弁体の斜視図である。It is a perspective view of a main valve body. カバーの（ａ）側方から見た斜視図、及び（ｂ）は斜め下方から見た斜視図である。(A) The perspective view seen from the side of a cover, (b) is the perspective view seen from diagonally downward. 図５のXIII−XIII線に沿って切断された断面を示す図である。It is a figure which shows the cross section cut | disconnected along the XIII-XIII line | wire of FIG. 吐水流量を最少にした吐水状態の開閉弁装置の（ａ）全断面図、及び（ｂ）（ａ）のXIVb−XIVb線に沿って切断された断面を示す図である。It is a figure which shows the cross section cut | disconnected along the XIVb-XIVb line | wire of (a) full opening figure of the water discharge state which made the water discharge flow volume the minimum, and (b) (a). 従来の流量調整機能を有する開閉弁装置の断面図である。It is sectional drawing of the on-off valve apparatus which has the conventional flow volume adjustment function.

Explanation of symbols

１本発明の実施形態の水栓装置
２流し台
４シンク部
６温調操作部
８流調操作部
１０本体部
１２ハンドル部
１４台座部
１６固定ナット
２０開閉弁装置
２２操作部
２２ａネジ部
２２ｂ肩部
２４ガイド部材
２６操作力伝達部材
２６ｄハートカム溝
２６ｅボア
２６ｆ第１ストッパー当接部
２６ｇ第２ストッパー当接部
２８主弁体押え部材
２８ｂスプライン
３０バルブ台座部材
３２カバー
３２ｆストッパー
３４主弁体
３６流量調整部材
３６ａスプライン
３８押し棒
４０パイロット弁
４２パッキン
４４ピン部材
４６付勢用バネ
４８Ｏリング
５０クリーニングピン
５２Ｏリング
５４コイルバネ
１００従来の吐水装置 DESCRIPTION OF SYMBOLS 1 Faucet apparatus of embodiment of this invention 2 Sink stand 4 Sink part 6 Temperature control operation part 8 Flow control operation part 10 Main body part 12 Handle part 14 Base part 16 Fixed nut 20 On-off valve apparatus 22 Operation part 22a Screw part 22b Shoulder part 24 guide member 26 operation force transmission member 26d heart cam groove 26e bore 26f first stopper contact portion 26g second stopper contact portion 28 main valve body pressing member 28b spline 30 valve seat member 32 cover 32f stopper 34 main valve body 36 flow rate adjustment Member 36a Spline 38 Push rod 40 Pilot valve 42 Packing 44 Pin member 46 Biasing spring 48 O-ring 50 Cleaning pin 52 O-ring 54 Coil spring 100 Conventional water discharge device

Claims

An on-off valve device capable of switching between a water stop state and a water discharge state and adjusting a water discharge flow rate,
An operation unit that can be translated and rotated by a user's operation;
A main valve body that is moved in parallel by the operation of the operation unit and switches between a water stop state and a water discharge state,
A valve seat on which the main valve body is seated;
A flow rate adjusting member that comes into contact with the main valve body and regulates a distance between the main valve body and the valve seat when the water discharge state occurs;
A flow rate adjusting member moving mechanism for moving the flow rate adjusting member by rotating the operation unit;
And an on-off valve device.

An on-off valve device capable of switching between a water stop state and a water discharge state and adjusting a water discharge flow rate,
A main valve body that has a pressure release hole and switches between a water stop state and a water discharge state;
A valve seat on which the main valve body is seated;
A pilot valve that opens and closes the pressure release hole by a user operation;
When the pressure release hole is closed by the pilot valve, the pressure inside increases, and the pressure chamber moves the main valve body toward the valve seat;
A flow rate adjusting member that is disposed inside the pressure chamber and contacts the main valve body when the water discharge state is reached, and regulates the distance between the main valve body and the valve seat;
A flow rate adjusting member moving mechanism for moving the flow rate adjusting member in the pressure chamber by a user operation;
And an on-off valve device.

Further, an operation portion is provided, and when the operation portion is pressed, the pilot valve is translated to open and close the pressure release hole, and when the operation portion is rotated, the flow rate adjusting member moving mechanism The on-off valve device according to claim 2, wherein the flow rate adjusting member is moved through the valve.

When the flow rate adjusting member moving mechanism has an operating force transmission member that extends from the outside to the inside of the pressure chamber and engages with the flow rate adjusting member inside the pressure chamber, the operating force transmission member is rotated. 4. The on-off valve device according to claim 3, wherein the flow rate adjusting member is translated in the axial direction of the rotation of the operating force transmission member.

The operation force transmission member is rotated together with the operation unit when the operation unit is rotated, and moves the flow rate adjusting member, and the operation force transmission member is moved when the operation unit is pressed. The on-off valve device according to claim 4, wherein the on-off valve device is connected directly or indirectly to the operation portion so as not to occur.

An on-off valve device according to any one of claims 1 to 5,
A faucet body for receiving the on-off valve device;
A spout or shower head with a spout communicating with the faucet body,
A faucet device comprising: