JP7109074B2 - Fluid controller - Google Patents

Fluid controller Download PDF

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JP7109074B2
JP7109074B2 JP2018161484A JP2018161484A JP7109074B2 JP 7109074 B2 JP7109074 B2 JP 7109074B2 JP 2018161484 A JP2018161484 A JP 2018161484A JP 2018161484 A JP2018161484 A JP 2018161484A JP 7109074 B2 JP7109074 B2 JP 7109074B2
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rotating member
rotating
fluid controller
torque limiter
engaging
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JP2020034093A (en
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俊治 小原
忠幸 薬師神
圭介 石橋
圭吾 小林
聡太 八幡
裕生 堀河
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Fujikin Inc
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Description

この発明は、流体制御器に関し、特に、トルクリミッター機能を有するハンドル部を備えた流体制御器に関する。 TECHNICAL FIELD The present invention relates to a fluid controller, and more particularly to a fluid controller provided with a handle portion having a torque limiter function.

図６に、特許文献１に開示されているトルクリミッター機能を有するハンドル部を備えた流体制御器を示す。 FIG. 6 shows a fluid controller provided with a handle portion having a torque limiter function disclosed in Patent Document 1. As shown in FIG.

図６において、流体制御器１は、流路２１を備えた弁箱２と、該流路２１を開閉するダイヤフラム３と、このダイヤフラム３の周縁部を挟持する挟持部材４と、ダイヤフラム３の開閉操作を行う操作機構５と、この操作機構５を上下動させるハンドル部６とを備えている。また、ハンドル部６は、トルクリミッター機構を内蔵するもので、外部から例えば手で操作される蓋体（第１回転部材）６１と、この蓋体６１の内側に配設されて操作機構５のステムに結合されるハンドル本体（第２回転部材）６２とを備えている。 6, the fluid controller 1 includes a valve box 2 having a flow path 21, a diaphragm 3 for opening and closing the flow path 21, a clamping member 4 for clamping the peripheral edge of the diaphragm 3, and an opening/closing mechanism for the diaphragm 3. It has an operation mechanism 5 for operation and a handle portion 6 for moving the operation mechanism 5 up and down. The handle portion 6 incorporates a torque limiter mechanism. and a handle body (second rotating member) 62 coupled to the stem.

トルクリミッター機構として、ハンドル本体６２を下方向に付勢する弾性体７が、蓋体６１に形成された複数の収容孔にそれぞれ収容されており、弾性体７の先端部にはその付勢力をハンドル本体６２に伝達する伝達材８が設けられている。蓋体６１を回転させた時、蓋体６１にかかるトルクが所定の値以下であるなら、弾性体７の付勢力によって蓋体６１とハンドル本体６２が一体となって回転するが、所定のトルクを超えると蓋体６１とハンドル本体６２が空転するため、全閉動作時に過剰な力がダイヤフラムにかかることを防ぐことができる。 As a torque limiter mechanism, elastic bodies 7 for urging the handle body 62 downward are accommodated in a plurality of accommodation holes formed in the lid 61, and the urging force is applied to the distal end of the elastic bodies 7. A transmission member 8 for transmission to the handle body 62 is provided. When the lid 61 is rotated, if the torque applied to the lid 61 is less than a predetermined value, the biasing force of the elastic body 7 causes the lid 61 and the handle body 62 to rotate together. Since the cover body 61 and the handle body 62 idle when exceeding , it is possible to prevent excessive force from being applied to the diaphragm during the fully closing operation.

上記のようなトルクリミッター機構を内蔵したハンドル部を有する流体制御器１においては、全閉動作時の過剰なトルクに対して空転すればよいが、意図しない空転により操作不能になることがあり、この場合には、流体制御器を分解して、正常な状態に復帰させる必要がある。 In the fluid controller 1 having a handle portion with a built-in torque limiter mechanism as described above, it is sufficient to idle against excessive torque during the fully closed operation, but unintended idle rotation may result in inoperability. In this case, it is necessary to disassemble the fluid controller and restore it to a normal state.

このような分解する必要を避けるために、特許文献１のものでは、図６に〇印を付している箇所に、押しボタンが設けられており、これを押すと第１回転部材と第２回転部材とが一体で回転可能となり、正常な状態に復帰できるようになされている。 In order to avoid the need for such disassembly, in Patent Document 1, a push button is provided at the location marked with a circle in FIG. The rotary member can be rotated integrally with the rotary member so that the normal state can be restored.

特開平１１－５１２１６号公報JP-A-11-51216

上記のように、特許文献１の流体制御器では、押しボタンを押すことでトルクリミッター機構を解除できるという利点はあるが、押しボタンを押した状態でハンドルを操作する必要があり、操作性が悪い。また、間違って押しボタンを押したままの状態でハンドルを操作すれば、トルクリミッター機能が働かず、過剰な力がダイヤフラムにかかるおそれがある。 As described above, the fluid controller of Patent Document 1 has the advantage that the torque limiter mechanism can be released by pressing the push button. bad. Also, if the handle is operated while the push button is being pressed, the torque limiter function may not work and excessive force may be applied to the diaphragm.

この発明の目的は、トルクリミッター機能を有し、しかも、間違ってトルクリミッターを無効化した状態で開閉操作を行うという誤操作を防止できる流体制御器を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a fluid controller which has a torque limiter function and which can prevent an erroneous opening and closing operation while the torque limiter is erroneously disabled.

この発明による流体制御器は、流体通路が設けられた弁箱と、前記流体通路を開閉するダイヤフラムと、回転しながら上下移動することで前記ダイヤフラムを移動させるステムと、前記ステムを回転させるハンドル部と、前記ハンドル部に対向しかつ前記弁箱に対して移動不可能な固定部材とを備え、前記ハンドル部は、操作者によって外部から回転させられる第１回転部材と、前記ステムに固定された第２回転部材とを備え、前記第１回転部材と前記第２回転部材との間に、前記第１回転部材を所定トルク以上で回転させたときに前記第１回転部材を前記第２回転部材に対して空転させるトルクリミッター機構が設けられている流体制御器において、前記第１回転部材の回転に伴って前記第１回転部材と前記固定部材とが所定の距離位置に達した際に、前記第１回転部材と前記第２回転部材とを係合し、前記トルクリミッター機構を無効化する係合部材を備えており、前記係合部材は、回転可能に前記第２回転部材に支持されており、前記係合部材の一方の端部が前記固定部材の対向面と常時接触するように付勢部材により付勢され、前記第１回転部材に、前記係合部材のもう一方の端部が嵌まる凹所が設けられていることを特徴とするものである。 A fluid controller according to the present invention includes a valve box provided with a fluid passage, a diaphragm for opening and closing the fluid passage, a stem for moving the diaphragm by moving up and down while rotating, and a handle portion for rotating the stem. and a fixed member opposed to the handle portion and immovable with respect to the valve body, the handle portion comprising a first rotary member externally rotated by an operator, and a first rotary member fixed to the stem. a second rotating member, between the first rotating member and the second rotating member, when the first rotating member is rotated at a predetermined torque or more, the first rotating member rotates to the second rotating member; In the fluid controller provided with a torque limiter mechanism that idles relative to the An engaging member that engages the first rotating member and the second rotating member to disable the torque limiter mechanism is provided, and the engaging member is rotatably supported by the second rotating member. One end of the engaging member is biased by a biasing member so as to be in constant contact with the facing surface of the fixed member, and the other end of the engaging member is attached to the first rotating member. It is characterized in that it is provided with a fitting recess .

第１回転部材を第２回転部材に対して空転させるトルクリミッター機構が設けられている流体制御器は、従来から有り、この従来の流体制御器に対して、第１回転部材の回転に伴って第１回転部材と固定部材とが所定の距離位置に達した際に、第１回転部材と第２回転部材とを係合する係合部材が付加される。第１回転部材と第２回転部材とが係合されると、第１回転部材が第２回転部材に対して空転するというトルクリミッター機構が無効化される。第１回転部材と第２回転部材とが係合される際の位置を調整することにより、希望する開度（全開、全閉またはその中間の開度）でトルクリミッター機能を無効化することができる。トルクリミッター機構の無効化は、第１回転部材を所定位置まで回転させることで得られ、間違ってトルクリミッターを無効化した状態で開閉操作を行うという誤操作を防止できる。 There is a conventional fluid controller provided with a torque limiter mechanism that causes the first rotating member to idle with respect to the second rotating member. An engaging member is added to engage the first rotating member and the second rotating member when the first rotating member and the fixed member reach a predetermined distance position. When the first rotating member and the second rotating member are engaged, the torque limiter mechanism in which the first rotating member idles with respect to the second rotating member is disabled. By adjusting the position when the first rotating member and the second rotating member are engaged, the torque limiter function can be disabled at a desired degree of opening (fully open, fully closed, or an intermediate degree of opening). can. Disabling of the torque limiter mechanism is obtained by rotating the first rotating member to a predetermined position, and it is possible to prevent an erroneous operation of opening and closing while the torque limiter is erroneously disabled.

係合部材は、例えば、第２回転部材に設けられて、第１回転部材を全開方向に回転させた際に、第１回転部材に係合するようになされる。 The engaging member is provided on the second rotating member, for example, and engages with the first rotating member when the first rotating member is rotated in the fully open direction.

前記係合部材は、回転可能に前記第２回転部材に支持されており、前記係合部材の一方の端部が前記固定部材の対向面と常時接触するようにねじりコイルばねや圧縮コイルばねなどの付勢部材により付勢され、前記第１回転部材に、前記係合部材のもう一方の端部が嵌まる凹所が設けられていることが好ましい。 The engaging member is rotatably supported by the second rotating member, and is provided with a torsion coil spring, a compression coil spring, or the like so that one end of the engaging member is always in contact with the facing surface of the fixed member. It is preferable that the first rotating member is provided with a recess into which the other end of the engaging member is fitted.

このようにすると、第１回転部材を全開方向に回転させると、全開手前で第２回転部材に設けられた係合部材が第１回転部材に係合し、全開後、第１回転部材を全閉方向に回転させると、第１回転部材と第２回転部材とが係合部材を介して接続された状態で一体で回転するので、全開位置における操作での第１回転部材の空転が防止される。 With this configuration, when the first rotating member is rotated in the fully open direction, the engaging member provided on the second rotating member engages with the first rotating member before fully opening, and after fully opening, the first rotating member is fully opened. When rotated in the closing direction, the first rotating member and the second rotating member are connected to each other through the engagement member and rotate together, thereby preventing idle rotation of the first rotating member during operation at the fully open position. be.

全閉状態では、前記係合部材のもう一方の端部は前記第１回転部材の凹所に嵌まっておらず、全開状態に達する前に前記係合部材のもう一方の端部が前記第１回転部材の凹所に嵌まることが好ましい。 In the fully closed state, the other end of the engaging member is not fitted in the recess of the first rotating member, and the other end of the engaging member is pulled out of the first rotating member before reaching the fully open state. It preferably fits in a recess in the single rotating member.

このようにすると、全開状態における第１回転部材の空転を確実に防止することができる。 By doing so, it is possible to reliably prevent the first rotating member from idling in the fully open state.

この発明の流体制御器によると、第１回転部材と第２回転部材とが係合される際の位置を調整することにより、希望する開度でトルクリミッター機能を無効化することができる。このトルクリミッター機構の無効化は、第１回転部材を所定位置まで回転することで得られるので、間違ってトルクリミッターを無効化した状態で開閉操作を行うという誤操作を防止できる。 According to the fluid controller of the present invention, the torque limiter function can be disabled at a desired degree of opening by adjusting the positions at which the first rotating member and the second rotating member are engaged. Since the torque limiter mechanism is disabled by rotating the first rotating member to a predetermined position, it is possible to prevent an erroneous opening/closing operation while the torque limiter is disabled.

図１は、この発明による流体制御器の１実施形態の全体構成を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing the overall configuration of one embodiment of a fluid controller according to the present invention. 図２は、流体制御器が全閉状態にある状態を示す正面図である。FIG. 2 is a front view showing a state in which the fluid controller is in a fully closed state. 図３は、流体制御器が全開状態にある状態を示す正面図である。FIG. 3 is a front view showing a state in which the fluid controller is in a fully open state. 図４は、ハンドル部の斜視図である。FIG. 4 is a perspective view of the handle portion. 図５は、異なるサイズ（ａ）および（ｂ）の流体制御器について、開閉耐久試験において生じた空転現象記録を示すグラフである。FIG. 5 is a graph showing idling phenomena recorded in open/close endurance tests for fluid controllers of different sizes (a) and (b). 図６は、従来の流体制御器の全体構成を示す縦断面図である。FIG. 6 is a longitudinal sectional view showing the overall configuration of a conventional fluid controller.

この発明の流体制御器の１実施形態を図１から図４までに示す。以下の説明において、上下は、図１の上下をいうものとする。この「上下」は便宜的なもので、設置に際しては、上下が逆になったり、水平になったりすることもある。 One embodiment of the fluid controller of the present invention is shown in FIGS. 1-4. In the following description, up and down refer to up and down in FIG. This "up and down" is for convenience, and when installed, it may be upside down or horizontal.

この流体制御器１１は、図１に示すように、流体通路１２ａが設けられた弁箱１２と、前記流体通路１２ａを開閉するダイヤフラム１３と、ダイヤフラム１３を弁箱１２との間で挟持する挟持部材１４と、ダイヤフラムを移動させる操作機構１５と、操作機構１５を作動させるハンドル部１６とを備えている。 As shown in FIG. 1, the fluid controller 11 includes a valve box 12 provided with a fluid passage 12a, a diaphragm 13 for opening and closing the fluid passage 12a, and a sandwiching mechanism for sandwiching the diaphragm 13 and the valve box 12. It has a member 14 , an operation mechanism 15 for moving the diaphragm, and a handle portion 16 for operating the operation mechanism 15 .

操作機構１５は、挟持部材１４に設けられた貫通めねじ部にねじ合わされて回転しながら上下移動するステム１７と、回転せずにステム１７と一体で上下移動するダイヤフラム押さえ１８とを備えている。 The operation mechanism 15 includes a stem 17 that is threadedly engaged with a through-hole thread provided on the clamping member 14 and moves up and down while rotating, and a diaphragm presser 18 that moves up and down integrally with the stem 17 without rotating. .

図１には、流体通路１２ａがダイヤフラム１３で閉鎖されている全閉状態が示されている。図２は、図１と同じ全閉状態を示しており、図３は、図２に対してハンドル部１６が上方に移動した全開状態を示している。 FIG. 1 shows a fully closed state in which the fluid passage 12a is closed by the diaphragm 13. As shown in FIG. 2 shows the same fully closed state as in FIG. 1, and FIG. 3 shows the fully opened state in which the handle portion 16 is moved upward with respect to FIG.

ハンドル部１６は、操作者によって外部から回転させられる第１回転部材２１と、ステム１７に固定された第２回転部材２２と、第１回転部材２１と第２回転部材２２との間に設けられたトルクリミッター機構とを備えている。 The handle portion 16 is provided between a first rotating member 21 that is externally rotated by an operator, a second rotating member 22 that is fixed to the stem 17, and between the first rotating member 21 and the second rotating member 22. It is equipped with a torque limiter mechanism.

トルクリミッター機構は、例えば図６に示したように、所定の付勢力に設定された弾性部材を有しており、第１回転部材２１を所定トルク以上で回転させたときに第１回転部材２１を第２回転部材２２に対して空転させる。 For example, as shown in FIG. 6, the torque limiter mechanism has an elastic member set to a predetermined biasing force. is idly rotated with respect to the second rotating member 22 .

トルクリミッター機構を有していることにより、樹脂やゴム等の材質で作られているダイヤフラム１３を使用した場合において、過剰締付けを防止して、ダイヤフラム１３の耐久性を向上させることができる。 By having the torque limiter mechanism, when the diaphragm 13 made of a material such as resin or rubber is used, excessive tightening can be prevented and the durability of the diaphragm 13 can be improved.

この実施形態の流体制御器１１には、トルクリミッター機構を無効化する係合部材２３と、係合部材２３を付勢するねじりコイルばね２４とが設けられている。 The fluid controller 11 of this embodiment is provided with an engaging member 23 that disables the torque limiter mechanism and a torsion coil spring 24 that biases the engaging member 23 .

係合部材２３は、中央の円板状部２５と、円板状部２５から互いにほぼ反対側に延びる２つのアーム部２６，２７とを備えている。円板状部２５の中央部に設けられた貫通孔が第２回転部材２２に水平状に設けられた軸部２８に嵌め入れられることにより、係合部材２３は、第２回転部材２２に回転可能に支持されている。係合部材２３は、一方のアーム部２６を上側に、他方のアーム部２７を下側にした状態で、図２に示す水平に近い傾斜状態から図３に示す垂直に近い傾斜状態に移動可能とされている。 The engaging member 23 has a central disk-shaped portion 25 and two arm portions 26 and 27 extending from the disk-shaped portion 25 in substantially opposite directions. The engaging member 23 is rotated by the second rotating member 22 by fitting the shaft portion 28 horizontally provided on the second rotating member 22 into the through hole provided in the central portion of the disk-shaped portion 25 . supported as possible. The engaging member 23 can move from a nearly horizontal inclined state shown in FIG. 2 to a nearly vertical inclined state shown in FIG. 3 with one arm portion 26 facing upward and the other arm portion 27 facing downward. It is said that

コイルばね２４は、中央部２４ａが軸部に巻き掛けられ、一端２４ｂが第２回転部材２２に設けられた係止部２９に固定されている。コイルばね２４の他端２４ｃは、係合部材２３の下側（挟持部材１４に近い側）のアーム部２７の下端部（先端部）近くに設けられた係止孔２７ａに、図の時計回りの付勢力を有した状態で嵌め入れられている。これにより、ねじりコイルばね２４は、下側のアーム部２７に付勢力を及ぼすことができ、係合部材２３は、ねじりコイルばね２４によって軸部２８を中心として図の右回りに回転するように付勢されている。 The coil spring 24 has a center portion 24 a wound around the shaft portion and one end 24 b fixed to a locking portion 29 provided on the second rotating member 22 . The other end 24c of the coil spring 24 is rotated clockwise in the drawing in a locking hole 27a provided near the lower end (tip) of the arm portion 27 on the lower side of the engaging member 23 (the side closer to the clamping member 14). It is fitted in with an urging force of . As a result, the torsion coil spring 24 can exert a biasing force on the lower arm portion 27, and the engaging member 23 is rotated clockwise in the drawing around the shaft portion 28 by the torsion coil spring 24. energized.

係合部材２３は、下側のアーム部２７の下端部が挟持部材（固定部材）１４の上面（対向面）１４ａと常時接触するようになされている。 The engaging member 23 is configured such that the lower end of the lower arm portion 27 is always in contact with the upper surface (opposing surface) 14 a of the holding member (fixing member) 14 .

図２に示されている状態において、第１回転部材２１が上方に移動すると、係合部材２３は、ねじりコイルばね２４によって右回りに係合部材２３の下側のアーム部２７の端部が上面１４ａに接触しながら回転させられて、図３に示す垂直に近い傾斜状態に立ち上がっていく。第１回転部材２１には、係合部材２３の上側のアーム部２６の端部が嵌まることのできる凹所３０が複数（図４に示す例では４つ）設けられている。このため、第１回転部材２１の回転途中にねじりコイルばね２４で付勢された係合部材２３の上側アーム部２６が凹所３０位置に来ると、上側のアーム部２６の上端部（先端部）が凹所３０に嵌まる。 In the state shown in FIG. 2, when the first rotating member 21 moves upward, the engaging member 23 is rotated clockwise by the torsion coil spring 24 so that the end of the lower arm portion 27 of the engaging member 23 is It is rotated while being in contact with the upper surface 14a, and rises in a nearly vertical inclined state shown in FIG. The first rotating member 21 is provided with a plurality of (four in the example shown in FIG. 4) recesses 30 into which the ends of the arms 26 on the upper side of the engaging member 23 can be fitted. Therefore, when the upper arm portion 26 of the engaging member 23 biased by the torsion coil spring 24 comes to the recess 30 position during the rotation of the first rotating member 21, the upper end portion (tip portion) of the upper arm portion 26 ) fits in the recess 30 .

図２に示す第１回転部材２１が全閉位置にあるときには、係合部材２３の上側アーム部２６は、第１回転部材２１の凹所３０に嵌まっていないが、図３に示す全開位置に達する前に、係合部材２３の上側アーム部２６は、第１回転部材２１の凹所３０に嵌まることになる。これにより、第１回転部材２１と第２回転部材２２とは、係合部材２３を介して接続され、上側のアーム部２６の上端部が凹所３０に嵌まっている範囲では、一体で回転するようになる。 When the first rotating member 21 shown in FIG. 2 is at the fully closed position, the upper arm portion 26 of the engaging member 23 is not fitted in the recess 30 of the first rotating member 21, but is at the fully open position shown in FIG. , the upper arm portion 26 of the engaging member 23 will fit into the recess 30 of the first rotating member 21 . As a result, the first rotating member 21 and the second rotating member 22 are connected via the engaging member 23, and rotate together as long as the upper end of the upper arm portion 26 is fitted in the recess 30. will come to

図５は、トルクリミッター機能を有するハンドル部６を備えた従来の流体制御器１について、開閉耐久試験において生じた空転現象記録を示すグラフで、横軸をリミッター作動回数として、縦軸にトルクと空転発生回数とを示している。（ａ）と（ｂ）とでは、流体制御器１のサイズが異なる。図５（ａ）によると、リミッター作動回数が１万回を超えたところで、全開→全閉方向に移動させようとしたときに意図しない空転が発生していることが分かる。また、図５（ｂ）によると、リミッター作動回数が６千回の前後と９千回の前後とで、全開→全閉方向に移動させようとしたときに意図しない空転が発生していることが分かる。一方、全閉→全開方向に移動させようとした時には、（ａ）、（ｂ）のいずれの場合でも、空転が発生していないことが分かる。これは全閉→全開に方向に移動させようとした場合、ダイヤフラムの材質がゴム又は樹脂である為、開方向トルク作用時には、応力緩和が発生し、ステムネジ部に働く抗力が低下、ネジ部の摩擦力が低下することで、弁座締切トルク値（トルクリミッターハンドルトルク設定値）よりも必ずバルブ開方向操作時トルクが低下することで、空転現象が発生しないと考えられる。 FIG. 5 is a graph showing a record of slipping phenomena occurring in an open/close endurance test for a conventional fluid controller 1 having a handle portion 6 having a torque limiter function. and the number of occurrences of slipping. The size of the fluid controller 1 differs between (a) and (b). According to FIG. 5(a), when the number of times the limiter has been operated exceeds 10,000 times, it can be seen that unintended idling occurs when moving from fully open to fully closed. Also, according to FIG. 5(b), when the number of times the limiter is operated is around 6,000 times and around 9,000 times, unintended idling occurs when moving from fully open to fully closed. I understand. On the other hand, when it is attempted to move in the direction from fully closed to fully opened, it can be seen that no slip occurs in either case (a) or (b). This is because when trying to move from fully closed to fully open, stress relaxation occurs when torque acts in the opening direction because the diaphragm is made of rubber or resin. As the frictional force decreases, the torque during operation in the valve opening direction is always lower than the valve seat closing torque value (torque limiter handle torque setting value), so it is thought that the slipping phenomenon does not occur.

図５のグラフから、トルクリミッター機能を有するハンドル部６を備えた従来の流体制御器１においては、通常１２０００回の開閉に約１０回ぐらい不定期に、全開後、閉止方向に第１回転部材２１を回そうとすると、リミッターが作動してしまう空転現象が発生することが分かる。 From the graph of FIG. 5, in the conventional fluid controller 1 provided with the handle portion 6 having a torque limiter function, the first rotary member is rotated irregularly about 10 times in the normal 12,000 times of opening and closing. If you try to turn 21, you can see that the idling phenomenon that the limiter is activated occurs.

係合部材２３を追加したこの実施形態の流体制御器１１によると、従来の流体制御器１のような意図しない状態での空転回数がゼロとなり、全開位置では、通常のハンドルとして機能して、トルクリミッター機能が必要な全閉位置だけ、作動することになり、空転現象によるハンドル操作の誤認識や、全開位置からバルブを閉めることができないといった不具合は発生しなくなる。 According to the fluid controller 11 of this embodiment to which the engaging member 23 is added, the number of times of idling in an unintended state like the conventional fluid controller 1 becomes zero, and in the fully open position it functions as a normal handle, The torque limiter function is activated only at the fully closed position, which eliminates problems such as erroneous recognition of steering wheel operation due to slipping and the inability to close the valve from the fully open position.

こうして、上記流体制御器１１によると、全閉時はトルクリミッターが通常通り機能し、全開方向になると、トルクリミッター機能を無効化する機構が設けられていることで、全開になると、作業者に関係なく、自動的にトルクリミッター機能が無効化し、全開位置での空転現象の発生を防止し、全閉時のみトルクリミッターが作動する機構を搭載したハンドル部１６を備えた流体制御器１１が得られる。そして、全開になれば自動的にトルクリミッター機能を無効化できるため、トルクリミッターの全開位置での空転現象を防止でき、また、自動的にトルクリミッター機能とその無効化をしてくれるので、全閉になっていないのに、全開状態であるにも関わらず、トルクリミッターが作動したから、全閉にしたという間違えた認識を予防でき、導入教育無しで作業者に安全に使用してもらうことができる。しかも、外観上余計な突起が必要なく、外観洗浄後、水はけが良好なデザインにできる。 Thus, according to the fluid controller 11, when fully closed, the torque limiter functions as usual, and when it is fully opened, it is provided with a mechanism that disables the torque limiter function. Regardless, the torque limiter function is automatically disabled, preventing the occurrence of the idling phenomenon at the fully open position, and the fluid controller 11 equipped with the handle part 16 equipped with a mechanism that activates the torque limiter only at the fully closed position. be done. And since the torque limiter function can be automatically disabled when it is fully open, it is possible to prevent the idling phenomenon at the fully open position of the torque limiter. To prevent misrecognition that the valve is fully closed because a torque limiter is activated in a fully open state even though it is not closed, and to have workers safely use the valve without introductory training. can be done. In addition, it is possible to design a product that does not require excessive protrusions in terms of appearance and that has good drainage after cleaning the appearance.

上記流体制御器１１は、ウェアレスタイプまたはウェア型のダイヤフラムバルブ、弁体部に樹脂やゴムを埋め込んだソフトシールタイプの手動弁など、過剰締付け防止の為にトルクリミッター機構付ハンドルを使用する製品に適用することができる。トルクリミッター機構は、図６に示したものに限定されるものではなく、公知の種々の構成のものを使用することができる。 The above fluid controller 11 is a product that uses a handle with a torque limiter mechanism to prevent excessive tightening, such as a wearless type or wear type diaphragm valve, a soft seal type manual valve with resin or rubber embedded in the valve body. can be applied to The torque limiter mechanism is not limited to that shown in FIG. 6, and various known structures can be used.

なお、上記実施形態において、全開位置でリミッターが無効化する機構となっているが、係合部材２３の形状を変えることで、全閉時にロックする種類を製作することも可能であるし、全閉、全開両方共にトルクリミッター機能を無効化することができる。例えば、全開時においては、第１回転部材に設けられた凹所に嵌まらずに、全開から全閉に移動して全閉となる手前で第１回転部材に設けられた凹所に嵌まるような棒状の係合部材を使用することで、全閉位置でリミッターを無効化することができる。 In the above embodiment, the mechanism disables the limiter at the fully open position, but by changing the shape of the engaging member 23, it is possible to manufacture a type that locks at the fully closed position. The torque limiter function can be disabled for both closed and fully opened. For example, when fully opened, it does not fit in the recess provided in the first rotating member, but fits in the recess provided in the first rotating member before it moves from fully open to fully closed and fully closed. The limiter can be disabled in the fully closed position by using a bar-shaped engagement member that fits.

この発明によると、トルクリミッター機能を有するハンドル部を備えた流体制御器において、誤操作の防止に寄与することができる。 According to the present invention, it is possible to contribute to prevention of erroneous operation in a fluid controller provided with a handle portion having a torque limiter function.

１１：流体制御器
１２：弁箱
１２ａ：流体通路
１３：ダイヤフラム
１４：挟持部材（固定部材）
１４ａ：上面
１６：ハンドル部
１７：ステム
２１：第１回転部材
２２：第２回転部材
２３：係合部材
２４：ねじりコイルばね
３０：凹所 11: Fluid controller 12: Valve box 12a: Fluid passage 13: Diaphragm 14: Clamping member (fixing member)
14a: Upper surface 16: Handle portion 17: Stem 21: First rotating member 22: Second rotating member 23: Engagement member 24: Torsion coil spring 30: Recess

Claims (2)

流体通路が設けられた弁箱と、前記流体通路を開閉するダイヤフラムと、回転しながら上下移動することで前記ダイヤフラムを移動させるステムと、前記ステムを回転させるハンドル部と、前記ハンドル部に対向しかつ前記弁箱に対して移動不可能な固定部材とを備え、
前記ハンドル部は、操作者によって外部から回転させられる第１回転部材と、前記ステムに固定された第２回転部材とを備え、前記第１回転部材と前記第２回転部材との間に、前記第１回転部材を所定トルク以上で回転させたときに前記第１回転部材を前記第２回転部材に対して空転させるトルクリミッター機構が設けられている流体制御器において、
前記第１回転部材の回転に伴って前記第１回転部材と前記固定部材とが所定の距離位置に達した際に、前記第１回転部材と前記第２回転部材とを係合し、前記トルクリミッター機構を無効化する係合部材を備えており、
前記係合部材は、回転可能に前記第２回転部材に支持されており、前記係合部材の一方の端部が前記固定部材の対向面と常時接触するように付勢部材により付勢され、前記第１回転部材に、前記係合部材のもう一方の端部が嵌まる凹所が設けられていることを特徴とする流体制御器。 A valve box provided with a fluid passage, a diaphragm for opening and closing the fluid passage, a stem for moving the diaphragm by vertically moving while rotating, a handle portion for rotating the stem, and a handle portion facing the handle portion. and a fixed member that is immovable with respect to the valve body,
The handle portion includes a first rotating member that is externally rotated by an operator, and a second rotating member that is fixed to the stem. Between the first rotating member and the second rotating member, the A fluid controller provided with a torque limiter mechanism that causes the first rotating member to idle with respect to the second rotating member when the first rotating member is rotated at a predetermined torque or more,
When the first rotating member and the fixed member reach a predetermined distance position along with the rotation of the first rotating member, the first rotating member and the second rotating member are engaged to generate the torque. It has an engaging member that disables the limiter mechanism ,
the engaging member is rotatably supported by the second rotating member, and is biased by a biasing member so that one end of the engaging member is always in contact with the facing surface of the fixed member; A fluid controller, wherein the first rotating member is provided with a recess into which the other end of the engaging member is fitted . 全閉状態では、前記係合部材のもう一方の端部は前記第１回転部材の凹所に嵌まっておらず、全開状態に達する前に前記係合部材のもう一方の端部が前記第１回転部材の凹所に嵌まることを特徴とする請求項１に記載の流体制御器、 In the fully closed state, the other end of the engaging member is not fitted in the recess of the first rotating member, and the other end of the engaging member is pulled out of the first rotating member before reaching the fully open state. 2. The fluid controller of claim 1 , wherein the fluid controller is fitted in a recess of the rotary member;
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006138422A (en) 2004-11-12 2006-06-01 Fujikin Inc Handle with torque limiter and fluid controller having this handle
JP2009150529A (en) 2007-07-20 2009-07-09 Ckd Corp Manual valve
JP2010014128A (en) 2008-06-30 2010-01-21 Inax Corp Valve of faucet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006138422A (en) 2004-11-12 2006-06-01 Fujikin Inc Handle with torque limiter and fluid controller having this handle
JP2009150529A (en) 2007-07-20 2009-07-09 Ckd Corp Manual valve
JP2010014128A (en) 2008-06-30 2010-01-21 Inax Corp Valve of faucet

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