JP2010207677A - Filter structure of circulation adapter - Google Patents
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- JP2010207677A JP2010207677A JP2009054935A JP2009054935A JP2010207677A JP 2010207677 A JP2010207677 A JP 2010207677A JP 2009054935 A JP2009054935 A JP 2009054935A JP 2009054935 A JP2009054935 A JP 2009054935A JP 2010207677 A JP2010207677 A JP 2010207677A
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Abstract
Description
本発明は、浴槽に湯水を供給するために浴槽に取付けて使用される循環アダプタのフィルタ構造に関し、特に、湯水を吸い込み可能な開口部を被うフィルタ部を備えたフィルタ構造に関するものである。 The present invention relates to a filter structure of a circulation adapter used by being attached to a bathtub to supply hot water to the bathtub, and more particularly to a filter structure having a filter portion covering an opening capable of sucking hot water.
従来、浴槽の側壁面に装着されると共に、浴槽と風呂給湯器とを接続し、湯水を浴槽と風呂給湯器との間で強制循環させるための循環アダブタが存在している。この循環アダブタは、浴槽取付金具、浴槽挟着具、通路切替機構、及びフィルタとから構成される。 2. Description of the Related Art Conventionally, there is a circulation adapter that is attached to a side wall surface of a bathtub, connects a bathtub and a bath water heater, and forcibly circulates hot water between the bathtub and the bath water heater. This circulation adapter is composed of a bathtub fitting, a bathtub clamp, a passage switching mechanism, and a filter.
フィルタは、循環アダブタから吸い込まれる湯水中に混在する毛髪やゴミ等の異物を捕捉する。このフィルタのフィルタ部は、一枚物のステンレス板をプレス成形し、その前面に湯水の異物を捕捉する多数の孔を設けたパンチングメタル構造にすると共に、このメッシュ状のフィルタ部を循環アダブタに着脱可能な筒状のフィルタ本体部に装着した構造とされている。 The filter captures foreign matters such as hair and dust mixed in hot water sucked from the circulating adapter. The filter part of this filter is formed by punching a single stainless steel plate and has a punching metal structure with a large number of holes for catching foreign matter on the front surface of the filter. The structure is such that it is attached to a detachable cylindrical filter body.
このような一枚物のステンレス板のフィルタ部では、フィルタ自体の強度確保が難しいため、一般に、フィルタ本体部の前面開口部にフィルタ部に対向当接する補強リブを複数形成している。 Since it is difficult to ensure the strength of the filter itself in such a single stainless steel plate filter portion, a plurality of reinforcing ribs that are opposed to the filter portion are generally formed at the front opening of the filter main body portion.
特許文献1は、浴槽用給湯循環接続具に着脱可能なフィルタ本体と、フィルタ本体の開口部を被うフィルタ部と、フィルタ部を挟んでフィルタ本体に装着されるフィルタカバーとから構成されるフィルタキャップであって、フィルタカバーの係止凸部がフィルタ本体のスライド溝を摺動して係止可能とする技術を提案している。 Patent Document 1 discloses a filter composed of a filter main body that can be attached to and detached from a hot water supply circulation connector for a bathtub, a filter portion that covers an opening of the filter main body, and a filter cover that is attached to the filter main body with the filter portion interposed therebetween. A technology has been proposed for a cap, in which a locking convex portion of a filter cover can be locked by sliding a slide groove of a filter body.
特許文献1では、フィルタ本体とフィルタカバーとに夫々前面中央部から外周縁部まで放射状に懸架される複数のリブが設けられ、両者のリブは正面視で重合するように配置している。 In Patent Document 1, a plurality of ribs that are radially suspended from the front center portion to the outer peripheral edge portion are provided on the filter main body and the filter cover, respectively, and these ribs are arranged so as to overlap in a front view.
フィルタ部が捕捉した異物によって目詰まりすると、見栄え悪化やメインテナンスの必要が生じる上、流路抵抗が増大するため湯水の循環効率が低下することから、浴槽の追焚時間が長くなり、更に、循環湯水流量が基準値を下回った場合には、給湯器側の安全装置が作動して給湯器の作動が停止することもあり得る。 If the filter part is clogged with trapped foreign matter, it may deteriorate in appearance and require maintenance, and the circulation efficiency of the hot water decreases due to an increase in flow path resistance. When the hot water flow rate falls below the reference value, the safety device on the hot water supply side may be activated and the operation of the hot water supply may be stopped.
フィルタ部の一部分で目詰まりを生じると、異物が付着していない領域を通過する湯水の流速が増加し、この流速の増加により、湯水通過可能な領域における異物の付着が集中発生するため、流路抵抗が更に増加するという悪循環を招く。 If clogging occurs in a part of the filter section, the flow rate of hot water passing through the area where no foreign matter is attached increases, and the increase in this flow rate causes the concentration of foreign matters in the area where hot water can pass. A vicious circle in which road resistance further increases is caused.
また、複数の運転モードを備えた循環アダプタでは、コンパクトにする必要があることから、レイアウト上、フィルタ部と吸込口との間隔は更に近接配置とされ、フィルタ部を通過する湯水の流速は一層速くなる傾向にある。 In addition, since the circulation adapter having a plurality of operation modes needs to be made compact, the distance between the filter part and the suction port is further arranged in the layout, and the flow rate of the hot water passing through the filter part is further increased. It tends to be faster.
フィルタ部の湯水通過可能面積、所謂有効面積を確保するため、フィルタ本体部に形成するリブを廃止することも考えられる。しかしながら、フィルタ部材の強度を確保するには、フィルタ部の板厚を厚くする必要が生じ、プレス加工等生産性やコストの面で新たな問題が生じる。 In order to secure a so-called effective area of the filter portion through which hot water can pass, it is conceivable to eliminate the ribs formed on the filter body portion. However, in order to secure the strength of the filter member, it is necessary to increase the plate thickness of the filter portion, and new problems arise in terms of productivity and cost such as press working.
本発明の目的は、フィルタ部材の強度を確保しつつ、フィルタ有効面積を増加可能な循環アダプタのフィルタ構造を提供することである。 The objective of this invention is providing the filter structure of the circulation adapter which can increase a filter effective area, ensuring the intensity | strength of a filter member.
本発明に係る循環アダプタのフィルタ構造は、循環アダプタの浴槽側表面に装着されると共に湯水を吸い込み可能な開口部を備えた本体部と、この本体部の開口部を被うフィルタ部とを有する。 The filter structure of the circulation adapter according to the present invention includes a main body provided with an opening that can be attached to the bathtub-side surface of the circulation adapter and can suck in hot water, and a filter that covers the opening of the main body. .
請求項1の発明は、前記本体部は前記開口部内を横断すると共に前記フィルタ部と対向して配置された複数の補強リブを有し、前記各補強リブは前記フィルタ部との間に間隙を形成したことを特徴とする。 In the first aspect of the present invention, the main body portion has a plurality of reinforcing ribs that traverse the inside of the opening and are disposed to face the filter portion, and each of the reinforcing ribs has a gap between the filter portion. It is formed.
請求項1の発明では、本体部の開口部内を横断すると共にフィルタ部と対向する複数の補強リブを有するため、フィルタ強度を確保できる。しかも、各補強リブはフィルタ部との間に間隙を形成したため、湯水が補強部と対向するフィルタ部領域を通過でき、フィルタ有効面積を増加可能となる。 According to the first aspect of the present invention, since the plurality of reinforcing ribs that cross the inside of the opening of the main body portion and face the filter portion are provided, the filter strength can be ensured. In addition, since each reinforcing rib forms a gap with the filter portion, hot water can pass through the filter portion region facing the reinforcing portion, and the effective filter area can be increased.
請求項2の発明は、請求項1の発明において、前記循環アダプタは、浴槽側表面領域に形成された湯水の循環経路を変更する操作部と、湯水を吸い込む吸込口とを備え、前記本体部は、前記操作部周りを囲うように形成された第1開口部と、前記吸込口周りを囲うように形成された第2開口部とを備えると共に、前記複数の補強リブは、前記第2開口部を被う前記フィルタ部と対向して配置されたことを特徴とする。 The invention according to claim 2 is the invention according to claim 1, wherein the circulation adapter includes an operation part for changing a circulation path of hot water formed in the bathtub-side surface region, and a suction port for sucking hot water, Comprises a first opening formed to surround the operation portion and a second opening formed to surround the suction port, and the plurality of reinforcing ribs include the second opening. It is arranged to face the filter part covering the part.
請求項1の発明によれば、フィルタの強度を確保しつつ、フィルタ有効面積を増加可能にできる。つまり、本体部に複数の補強リブを形成したにも拘わらず、各補強リブはフィルタ部との間に間隙を有するため、フィルタ全体を湯水の通路とすることができ、局部的な異物の付着を防止することができる。また、フィルタ全体を湯水通路とするため、フィルタ部を通過する湯水の流速を低下でき、フィルタ部に対する異物の付着自体を減少できる。しかも、各補強リブとフィルタ部とが離間するため、両者に挟み込まれる異物の発生を防止できる。 According to the first aspect of the present invention, the effective area of the filter can be increased while ensuring the strength of the filter. In other words, despite the fact that a plurality of reinforcing ribs are formed on the main body, each reinforcing rib has a gap between it and the filter, so that the entire filter can be used as a hot water passage, and local foreign matter adheres. Can be prevented. Moreover, since the whole filter is used as the hot water passage, the flow rate of the hot water passing through the filter portion can be reduced, and adhesion of foreign matter to the filter portion itself can be reduced. In addition, since the reinforcing ribs and the filter portion are separated from each other, it is possible to prevent the occurrence of foreign matter sandwiched between them.
請求項2の発明によれば、前記循環アダプタは操作部を有し、前記複数の補強リブは前記第2開口部を被う前記フィルタ部と対向して配置されるため、フィルタ部を大きく取れないフィルタであっても、フィルタ有効面積を確保できる。 According to a second aspect of the present invention, the circulation adapter has an operation portion, and the plurality of reinforcing ribs are arranged to face the filter portion covering the second opening, so that the filter portion can be made large. Even if there is no filter, the effective area of the filter can be secured.
以下、本発明を実施する為の最良の形態について実施例に基づいて説明する。 Hereinafter, the best mode for carrying out the present invention will be described based on examples.
図1に示すように、実施例の風呂供給システムは、浴槽1、風呂給湯器2、循環回路3及び循環アダプタ4から構成される。風呂給湯器2はガス等の燃焼部と熱交換部とからなる給湯用の第1熱供給部5と風呂追焚用の第2熱供給部6と水や湯水を循環させるためのポンプ7とから構成され、夫々の機器はコントローラ8によって制御される。 As shown in FIG. 1, the bath supply system of the embodiment includes a bathtub 1, a bath water heater 2, a circulation circuit 3, and a circulation adapter 4. The bath water heater 2 includes a first heat supply unit 5 for hot water supply composed of a combustion unit for gas and the like, a heat exchange unit, a second heat supply unit 6 for bath bathing, and a pump 7 for circulating water and hot water. Each device is controlled by a controller 8.
また、コントローラ8は操作パネル9に電気的に接続されており、ユーザが操作パネル9上に設置されている運転モード毎に設けられた押し釦を押すことによって風呂の湯張指示や各種運転モード選択信号がコントローラ8に伝達され風呂給湯器2の作動が開始される。 In addition, the controller 8 is electrically connected to the operation panel 9, and when the user presses a push button provided for each operation mode installed on the operation panel 9, a hot water bath instruction and various operation modes are provided. The selection signal is transmitted to the controller 8 and the operation of the bath water heater 2 is started.
給湯用である第1熱供給部5に関連する水や湯水の流通回路について説明する。導入路10に導入された水が第1流量センサ11を経て第1熱供給部5に供給された後、第1熱供給部5に加熱される。加熱された湯水は、排出路12を通って浴槽1及びその他の給湯系装置に供給される経路となっている。 A water and hot water distribution circuit related to the first heat supply unit 5 for hot water supply will be described. After the water introduced into the introduction path 10 is supplied to the first heat supply unit 5 through the first flow rate sensor 11, it is heated by the first heat supply unit 5. The heated hot water is a path that is supplied to the bathtub 1 and other hot water supply system devices through the discharge path 12.
風呂追焚用である第2熱供給部6に関連する水や湯水の循環回路について説明する。循環回路3は復路13と往路14とから構成されている。ポンプ7の作動により循環アダプタ4から吸入された浴槽1の湯水は復路13を経て第2熱供給部6で加熱されて往路14を通り循環アダプタ4から浴槽1に供給される経路となっている。ポンプ7下流の復路13には第2流量センサ15が設けられ、安全上の観点から3.5L/分以上の湯水流量がなければ第2熱供給部6の加熱動作は行われない。尚、排出路12と復路13とは分岐排出路16で接続されており、その連通は電磁弁17により制御される。 A circulation circuit of water and hot water related to the second heat supply unit 6 for bath remedy will be described. The circulation circuit 3 includes a return path 13 and a forward path 14. The hot water of the bathtub 1 sucked from the circulation adapter 4 by the operation of the pump 7 is heated by the second heat supply unit 6 through the return path 13 and is supplied to the bathtub 1 from the circulation adapter 4 through the forward path 14. . A second flow rate sensor 15 is provided in the return path 13 downstream of the pump 7, and the heating operation of the second heat supply unit 6 is not performed if there is no hot water flow rate of 3.5 L / min or more from the viewpoint of safety. The discharge path 12 and the return path 13 are connected by a branch discharge path 16, and the communication is controlled by an electromagnetic valve 17.
次に、循環アダプタ4について図2〜図21に基づいて説明する。
図2は循環アダプタ4の正面図、図3は図2のIII−III線断面図、図4は図2のIV−IV線断面図、図5は図2のV−V線断面図を示す。
Next, the circulation adapter 4 will be described with reference to FIGS.
2 is a front view of the circulation adapter 4, FIG. 3 is a sectional view taken along line III-III in FIG. 2, FIG. 4 is a sectional view taken along line IV-IV in FIG. .
循環アダプタ4は、浴槽1の外側に配設される第1筒状体18と、浴槽1の内部側から浴槽壁に貫通状に配設されて第1筒状体18に螺合される第2筒状体19とを有している。第1、第2筒状体18,19は夫々第1フランジ部18aと第2フランジ部19aとを備えており、環状パッキン20,21により浴槽壁とフランジ部18a,19aとのシール性を確保している。 The circulation adapter 4 is a first tubular body 18 disposed outside the bathtub 1 and a first tubular body 18 which is disposed through the bathtub wall from the inner side of the bathtub 1 and is screwed into the first tubular body 18. It has two cylindrical bodies 19. The first and second cylindrical bodies 18 and 19 have a first flange portion 18a and a second flange portion 19a, respectively, and the sealing properties between the bathtub wall and the flange portions 18a and 19a are secured by the annular packings 20 and 21. is doing.
第2筒状体19の内周側には、第2フランジ部19aにボルト22により固定される金属製の切替弁ケース23が配設される。この切替弁ケース23の表面には水平方向に開口する気泡噴流噴出口24と吸込口25とが設けられると共に、槽底方向に向かって後述する横穴状の追焚噴流噴出口26が形成されている。循環アダプタ4の浴槽側表面部分には、第2フランジ部19aと切替弁ケース23とを覆う形でメッシュ状のフィルタ27が装着されている。 On the inner peripheral side of the second cylindrical body 19, a metal switching valve case 23 that is fixed to the second flange portion 19 a by a bolt 22 is disposed. The surface of the switching valve case 23 is provided with a bubble jet outlet 24 and a suction opening 25 that open in the horizontal direction, and a side hole-shaped follow-up jet outlet 26 described later is formed toward the tank bottom. Yes. A mesh-like filter 27 is attached to the surface of the circulation adapter 4 on the bathtub side so as to cover the second flange portion 19 a and the switching valve case 23.
第1筒状体18の端壁部28には、吸入管29と吐出管30と吸気管31の3つのポート部分が形成されており、吸入管29は復路13と、吐出管30は往路14とに夫々連結されている。吸気管31は、フィルタ、オリフィス及び逆止弁等を備えた図示しない吸気ユニットと吸気パイプを介して接続されている。 The end wall portion 28 of the first cylindrical body 18 is formed with three port portions of a suction pipe 29, a discharge pipe 30 and an intake pipe 31. The suction pipe 29 is a return path 13, and the discharge pipe 30 is a forward path 14. Are connected to each other. The intake pipe 31 is connected to an intake unit (not shown) having a filter, an orifice, a check valve and the like via an intake pipe.
図6〜図8に示すように、切替弁ケース23は、浴槽側壁面に配置される円板状の第1切替弁部23aと、第1切替弁部23aの裏面に連続形成すると共に第1切替弁部23aより小径とされる筒状の第2切替弁部23bとから構成する。尚、図8は、図7のVIII−VIII線断面図である。 As shown in FIGS. 6-8, the switching valve case 23 is continuously formed on the disk-shaped first switching valve portion 23a disposed on the bathtub side wall surface and the back surface of the first switching valve portion 23a and the first. It comprises a cylindrical second switching valve portion 23b having a smaller diameter than the switching valve portion 23a. 8 is a cross-sectional view taken along line VIII-VIII in FIG.
第1切替弁部23a表面には、凹設された第1吸込部81と、テーパ状の気泡噴流噴出口24と、第1凹部51と、第1凹部51よりも大径の第2凹部52と、軸心に対して対称配置される一対のボルト穴23cと、第1切替弁部23aの外周縁部に形成される3つの切欠部23d及び3つの楕円状開口とが形成される。 On the surface of the first switching valve portion 23 a, a recessed first suction portion 81, a tapered bubble jet outlet 24, a first recess 51, and a second recess 52 having a larger diameter than the first recess 51 are provided. And a pair of bolt holes 23c arranged symmetrically with respect to the axial center, three cutout portions 23d and three elliptical openings formed in the outer peripheral edge portion of the first switching valve portion 23a.
第1吸込部81は、正面視で扇形状とされ、扇の要部分が吸込口25に連続すると共に第1切替弁部23aの軸心から外周方向に向かって拡開するよう構成されている。第1切替弁部23aの内部には、後述する供給室38の下流側端部に接続される直線状の追焚噴流噴出口26が第1切替弁部23aの軸心から外周方向に向かって形成されている。 The first suction portion 81 has a fan shape when viewed from the front, and is configured such that a main portion of the fan continues to the suction port 25 and expands from the axial center of the first switching valve portion 23a toward the outer peripheral direction. . Inside the first switching valve portion 23a, a linear memorial jet outlet 26 connected to the downstream end of a supply chamber 38, which will be described later, extends from the axis of the first switching valve portion 23a toward the outer circumferential direction. Is formed.
図3〜図5に示すように、第1切替弁部23aと同一軸心とされる第2切替弁部23bは、第2筒状体19の内周面に嵌合する外筒部32と、外筒部32と協働して複数の機能空間を形成する内筒部33とを備える。つまり、外筒部32と内筒部33とによって切替弁ケース23内部には、旋回室34、吸込室35、旋回予備室37、供給室38、吸入室39の5つの機能空間が存在している。 3-5, the 2nd switching valve part 23b made into the same axial center as the 1st switching valve part 23a is the outer cylinder part 32 fitted to the internal peripheral surface of the 2nd cylindrical body 19, and The inner cylinder part 33 which forms a plurality of functional spaces in cooperation with the outer cylinder part 32 is provided. That is, there are five functional spaces in the switching valve case 23, that is, the swirl chamber 34, the suction chamber 35, the swirl reserve chamber 37, the supply chamber 38, and the suction chamber 39 due to the outer tube portion 32 and the inner tube portion 33. Yes.
旋回室34は、Oリングを介在させて嵌装される金属製の吸気ノズル部40、連通路開口41から構成している。吸気ノズル部40は、旋回室34の軸心と同軸状に形成され且つ気泡噴流噴出口24に向かって旋回室34内部へ突出する柱状の突出部42と、突出部42の軸心先端に形成された吸気導入口43と、突出部42の基端部の回りに位置すると共に旋回室34の軸心方向外側に向かって突形の半円形とされる円環状凹部44とから構成している。吸気導入口43は、吸気管31と連通する吸気連通路45と接続されている。 The swirl chamber 34 includes a metal intake nozzle portion 40 and a communication passage opening 41 that are fitted with an O-ring interposed. The intake nozzle portion 40 is formed coaxially with the axis of the swirl chamber 34 and is formed at the tip of the shaft center of the protrusion 42 and a columnar protrusion 42 that protrudes into the swirl chamber 34 toward the bubble jet outlet 24. And an annular recess 44 that is located around the proximal end of the projecting portion 42 and is formed in a projecting semicircular shape outward in the axial direction of the swirl chamber 34. . The intake inlet 43 is connected to an intake communication passage 45 that communicates with the intake pipe 31.
吸込室35は浴槽側端部に吸込口25を有している。旋回予備室37は旋回室34と並設され、両室は旋回室34の内周面の接線方向に連通する連通路36で接続されている。尚、連通路36と旋回室34との接続部分が連通路開口41とされる。供給室38は浴槽側端部で追焚噴流噴出口26と連通している。吸入室39は、旋回予備室37と供給室38とに対して反浴槽側に直列状に配置されている。また、旋回室34、吸込室35、旋回予備室37、供給室38、吸入室39は何れも循環アダプタ4の軸心に対して平行となるよう配置されている。 The suction chamber 35 has a suction port 25 at the end on the bathtub side. The swirl preliminary chamber 37 is arranged in parallel with the swirl chamber 34, and both chambers are connected by a communication path 36 that communicates in the tangential direction of the inner peripheral surface of the swirl chamber 34. A connecting portion between the communication path 36 and the swirl chamber 34 is a communication path opening 41. The supply chamber 38 communicates with the memorial jet outlet 26 at the end on the bathtub side. The suction chamber 39 is arranged in series on the side opposite to the bathtub with respect to the swirling preliminary chamber 37 and the supply chamber 38. Further, the swirl chamber 34, the suction chamber 35, the swirl reserve chamber 37, the supply chamber 38, and the suction chamber 39 are all arranged in parallel to the axis of the circulation adapter 4.
この構成により、旋回予備室37から供給される湯水が旋回室34の内周形状に沿って高速旋回することになり、空気の吸引、気泡の微細化及び所定周波数の超音波の発生等に適した旋回回転数を得ることができる。 With this configuration, hot water supplied from the swirl preliminary chamber 37 swirls at high speed along the inner peripheral shape of the swirl chamber 34, which is suitable for air suction, bubble miniaturization, generation of ultrasonic waves of a predetermined frequency, and the like. Swivel rotation speed can be obtained.
図4に示すように、切替弁ケース23には、内筒部33を貫通し、湯水の噴出口を気泡噴流噴出口24と追焚噴流噴出口26とに切替え制御する噴出口切替部材47が設けられている。噴出口切替部材47は、中央部分を内筒部33に形成された受部48によって摺動可能に支持される弁軸49、弁軸49の一端側である反浴槽側端部に装着される第1切替弁50、第1切替弁50と受部48を挟んで他端側に設置された第2切替弁53、第2切替弁53よりも他端側である弁軸49の浴槽側端部に固定された半球状の軸受け部材54、バイアスバネ55、形状記憶合金製バネ56とから構成している。 As shown in FIG. 4, the switching valve case 23 has an outlet switching member 47 that passes through the inner cylinder portion 33 and controls the hot water outlet to be switched between a bubble jet outlet 24 and a memorial jet outlet 26. Is provided. The outlet switching member 47 is attached to a valve shaft 49 that is slidably supported by a receiving portion 48 formed in the inner cylinder portion 33 at the center portion, and an end portion on the opposite bathtub side that is one end side of the valve shaft 49. The first switching valve 50, the second switching valve 53 installed on the other end side across the first switching valve 50 and the receiving portion 48, the bathtub side end of the valve shaft 49 that is the other end side from the second switching valve 53 It comprises a hemispherical bearing member 54, a bias spring 55, and a shape memory alloy spring 56 fixed to the portion.
次に、図9〜図12に基づき、第1切替弁部23aの表面に装着されるガイド部材59について説明する。図9はガイド部材59の斜視図、図10は正面図、図11は図10のXI−XI線断面図、図12は背面図を示す。樹脂製のガイド部材59は、フィルタ27の内側で、且つ切替弁ケース23の浴槽側端面、所謂循環アダプタ本体側壁部を構成しており、ボルト22が切替弁ケース23を貫通すると共に、第2筒状体19に締結されている。 Next, based on FIGS. 9-12, the guide member 59 with which the surface of the 1st switching valve part 23a is mounted | worn is demonstrated. 9 is a perspective view of the guide member 59, FIG. 10 is a front view, FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 10, and FIG. The resin guide member 59 constitutes a so-called circulation adapter main body side wall on the inner side of the filter 27 and on the bathtub side of the switching valve case 23, and the bolt 22 penetrates the switching valve case 23, and the second Fastened to the tubular body 19.
ガイド部材59は、気泡噴流噴出口24の外周に設けられる第1噴流開口60a、第1噴流開口60aから浴槽側に向かって拡開する断面テーパ状に形成された正面視円環状のテーパ部60b、テーパ部60bの一部下方領域に沿って形成される円弧状溝部61、テーパ部60b上方位置に形成され、後述する噴流ガイド部材62と係合可能な第1係合穴63、円弧状溝部61下方位置に形成され、噴流ガイド部材62と係合可能な第2係合穴64から構成している。 The guide member 59 includes a first jet opening 60a provided on the outer periphery of the bubble jet outlet 24, and a tapered portion 60b having a circular shape when viewed from the front, formed in a tapered shape in cross section that expands from the first jet opening 60a toward the bathtub side. , An arcuate groove portion 61 formed along a region below the tapered portion 60b, a first engagement hole 63 formed at an upper position of the taper portion 60b and engageable with a jet guide member 62 described later, an arcuate groove portion The second engagement hole 64 is formed at a lower position 61 and engageable with the jet guide member 62.
更に、ガイド部材59は、後述する摺動部材65と右側端部位置で係合可能な第1突起部66、摺動部材65と左側端部位置で係合可能な第2突起部67、ガイド部材59の裏面に形成され第1吸込部81の浴槽側端部の隔壁を形成する第2吸込部82、第2吸込部82の半径方向外周側に設けられる円弧状の開口を形成する吸込端部83、吸込端部83を6つの小開口に分割する格子状の桟部83a、ボルト穴23cに対応して浴槽側に向かって凸設されると共に軸心に対して対称配置される一対のボルトボス部59a、ガイド部材59の外周縁部に形成される3つの切欠部59bと3つの楕円状開口とから構成される。 Furthermore, the guide member 59 includes a first protrusion 66 that can be engaged with a sliding member 65, which will be described later, at a right end position, a second protrusion 67 that can be engaged with the sliding member 65, at a left end position, and a guide. A suction end that forms an arc-shaped opening provided on the outer peripheral side of the second suction portion 82 in the radial direction of the second suction portion 82 and the second suction portion 82 that is formed on the back surface of the member 59 and forms the partition wall of the bathtub-side end of the first suction portion 81. A pair of ribs 83, a lattice-shaped crosspiece 83 a that divides the suction end 83 into six small openings, and protrudes toward the bathtub corresponding to the bolt holes 23 c and symmetrically arranged with respect to the axis. The bolt boss portion 59a, three cutout portions 59b formed at the outer peripheral edge portion of the guide member 59, and three elliptical openings are formed.
前述の構成により、吸込口25を有する吸込室35は、循環アダプタ4の軸心に対して平行配置とされ、吸込端部83は、循環アダプタ4の軸心に対して吸込口25よりも更に外周方向にオフセットして配置されている。また、切欠部59bと切欠部23dとは、組付けの際、切欠形状が一致するよう位置決めされるよう構成している。更に、フィルタ27を取外した場合でも、格子状の桟部83aによって吸込口25への指詰め等を防止できる。 With the above-described configuration, the suction chamber 35 having the suction port 25 is arranged in parallel with the axis of the circulation adapter 4, and the suction end 83 is further further than the suction port 25 with respect to the axis of the circulation adapter 4. They are arranged offset in the outer circumferential direction. Further, the cutout portion 59b and the cutout portion 23d are configured to be positioned so that the cutout shapes match when assembled. Furthermore, even when the filter 27 is removed, it is possible to prevent finger filling or the like into the suction port 25 by the lattice-shaped crosspiece 83a.
円弧状溝部61は、反浴槽側に弁軸49と直交する、つまり、アダプタ本体側壁部に略平行な底面68と上壁69と下壁70と側壁71,72からなる断面略コ字状をなす凹所を有しており、この凹所内を底辺68と上壁69と下壁70とにガイドされる断面矩形の摺動部材65が摺動移動可能に収容されている。円弧状溝部61の底面68の略中央部分には、弁軸45の他端側部分を支持すると共に、弁軸49を軸方向摺動自在に貫通させる貫通口61aが形成されている。 The arc-shaped groove 61 has a substantially U-shaped cross section composed of a bottom surface 68, an upper wall 69, a lower wall 70, and side walls 71, 72 that are orthogonal to the valve shaft 49 on the opposite bathtub side, that is, substantially parallel to the adapter body side wall. The sliding member 65 having a rectangular cross section guided by the bottom 68, the upper wall 69, and the lower wall 70 is slidably accommodated in the recess. A substantially central portion of the bottom surface 68 of the arc-shaped groove portion 61 is formed with a through-opening 61a that supports the other end portion of the valve shaft 45 and allows the valve shaft 49 to pass through in an axially slidable manner.
図4に示すように、摺動部材65は、この摺動部材65を左右方向移動自在に弁軸49の他端側部分を貫通させる略円弧状に形成された円弧状貫通口79と、この円弧状貫通口79の周囲に形成され、軸受け部材54に摺接可能で且つ弁軸49と直交する面、所謂底面68に対して傾斜すると共に、断面半円状で軸受け部材54に接触する傾斜部73と、摺動部材65左側端部に浴槽側に向かって延設された操作部74とから構成する。 As shown in FIG. 4, the sliding member 65 includes an arcuate through-hole 79 formed in a substantially arc shape that penetrates the other end side portion of the valve shaft 49 so that the sliding member 65 can move in the left-right direction. An inclination formed around the arcuate through-hole 79, slidable to the bearing member 54 and inclined with respect to a surface orthogonal to the valve shaft 49, a so-called bottom surface 68, and in contact with the bearing member 54 with a semicircular cross section. It consists of the part 73 and the operation part 74 extended toward the bathtub side at the sliding member 65 left side edge part.
傾斜部73は、浴槽側に対する底面68からの高さが、右側に向かう程高くなるように構成している。つまり、操作部74を右側端部位置に手動操作すると、摺動部材65が円弧状溝部61内を右側に摺動移動し、バイアスバネ55が形状記憶合金製バネ56の張力よりも強い場合、傾斜部73に摺接する軸受け部材54は傾斜部73に沿って反浴槽側に移動する。 The inclination part 73 is comprised so that the height from the bottom face 68 with respect to the bathtub side may become so high that it goes to the right side. That is, when the operation unit 74 is manually operated to the right end position, the sliding member 65 slides to the right in the arc-shaped groove 61, and the bias spring 55 is stronger than the tension of the shape memory alloy spring 56. The bearing member 54 that is in sliding contact with the inclined portion 73 moves along the inclined portion 73 toward the opposite bathtub side.
一方、操作部74を左側端部位置に手動操作すると、摺動部材65が円弧状溝部61内を左側に摺動移動し、バイアスバネ55が形状記憶合金製バネ56の張力よりも強い場合、傾斜部73に摺接する軸受け部材54は傾斜部73に沿って浴槽側に移動する。 On the other hand, when the operation unit 74 is manually operated to the left end position, the sliding member 65 slides to the left in the arc-shaped groove 61, and the bias spring 55 is stronger than the tension of the shape memory alloy spring 56. The bearing member 54 that is in sliding contact with the inclined portion 73 moves toward the bathtub along the inclined portion 73.
従って、軸受け部材54が傾斜部73に摺接している場合、傾斜部73の浴槽側に対する底面68からの高さは、図3〜図5に示すように、操作部74を右側端部位置に手動操作したとき、弁軸49を第2切替弁53が閉弁し第1切替弁50が開弁する第1位置になり、操作部74を左側端部位置に手動操作したとき、弁軸49を第2切替弁53が開弁し第1切替弁50が閉弁する第2位置になるように設定されている。 Therefore, when the bearing member 54 is in sliding contact with the inclined portion 73, the height of the inclined portion 73 from the bottom surface 68 with respect to the bathtub side is as shown in FIGS. When manually operated, the valve shaft 49 is in the first position where the second switching valve 53 is closed and the first switching valve 50 is opened, and when the operating portion 74 is manually operated to the left end position, the valve shaft 49 is Is set to the second position where the second switching valve 53 is opened and the first switching valve 50 is closed.
また、操作部74を右側端部位置に手動操作した場合であっても、湯水温度が高温になると、形状記憶合金製バネ56が温度変化に感応して伸張し、バイアスバネ55が圧縮されるため、軸受け部材54が傾斜部73から離れ、浴槽側に摺動移動し、弁軸49を第2切替弁53が開弁し第1切替弁50が閉弁する第2位置になるように構成されている。 Even when the operation unit 74 is manually operated to the right end position, when the hot water temperature becomes high, the shape memory alloy spring 56 expands in response to the temperature change and the bias spring 55 is compressed. Therefore, the bearing member 54 is separated from the inclined portion 73 and slides and moves to the bathtub side, and the valve shaft 49 is configured to be in the second position where the second switching valve 53 is opened and the first switching valve 50 is closed. Has been.
操作部74のアダプタ本体側底面には、第1突起部66及び第2突起部67と係合可能な図示しない凹部が形成されており、操作部74が右側端部位置或いは左側端部位置に手動操作された場合、第1突起部66或いは第2突起部67と係合し、摺動部材65を位置決め可能で且つユーザに適度な節度感を与えるように構成している。 A recess (not shown) that can be engaged with the first projection 66 and the second projection 67 is formed on the bottom surface of the operation unit 74 on the adapter body side, and the operation unit 74 is positioned at the right end position or the left end position. When manually operated, the first protrusion 66 or the second protrusion 67 is engaged, so that the sliding member 65 can be positioned and a moderate feeling of moderation is given to the user.
図2〜図5に示すように、円形状の噴流ガイド部材62は、循環アダプタ4の軸心と同軸状とされ、第1噴流開口60aと同径の第2噴流開口75と、三日月状の操作開口76と、第1係合穴63に係合する第1係合部77と、第2係合穴64に係合する第2係合部78とにより構成する。 As shown in FIGS. 2 to 5, the circular jet guide member 62 is coaxial with the axis of the circulation adapter 4, has a second jet opening 75 having the same diameter as the first jet opening 60 a, and a crescent-like shape. The operation opening 76, a first engagement portion 77 that engages with the first engagement hole 63, and a second engagement portion 78 that engages with the second engagement hole 64 are configured.
第2噴流開口75は、気泡噴流噴出口24からの軌道に沿った気泡噴流を略直線状に通過可能としており、第2噴流開口75の外周部分は、気泡噴流の外周部、所謂軌道を外れた噴流を遮断するよう構成している。 The second jet opening 75 allows the bubble jet flow along the trajectory from the bubble jet outlet 24 to pass substantially linearly, and the outer peripheral portion of the second jet opening 75 deviates from the outer peripheral portion of the bubble jet, so-called trajectory. It is configured to block the jet.
また、噴流ガイド部材62の外縁側部は、第1係合部77と第2係合部78とによってガイド部材59に連結されている。また、噴流ガイド部材62の外縁側部において、ガイド部材59と噴流ガイド部材62との間に一部分離間空間が形成されており、前記操作開口76及び外縁側部の離間空間により、気泡運転モードの際、噴流ガイド部材62の外側から気泡噴流噴出口24に湯水の流れを還流させることができる。 The outer edge side portion of the jet guide member 62 is connected to the guide member 59 by a first engagement portion 77 and a second engagement portion 78. Further, a partly spaced space is formed between the guide member 59 and the jet guide member 62 on the outer edge side portion of the jet guide member 62, and the bubble opening mode is set by the operation opening 76 and the spaced space on the outer edge side portion. At this time, the hot water flow can be recirculated from the outside of the jet guide member 62 to the bubble jet outlet 24.
図13〜図21に示すように、フィルタ27は、円環状のフィルタ本体部84(本体部)、フィルタ本体部84の外縁に配置されるステンレス製メッシュからなるメッシュ部85(フィルタ部)とから構成している。尚、図13はフィルタ27の正面図、図14は図13のXIV−XIV線断面図、図15はフィルタ27の要部断面図、図16〜図18は夫々フィルタ本体部84の斜視図、正面図、側面図、図19〜図21は夫々メッシュ部85の斜視図、正面図、側面図を示す。 As shown in FIGS. 13 to 21, the filter 27 includes an annular filter main body portion 84 (main body portion) and a mesh portion 85 (filter portion) made of a stainless steel mesh disposed on the outer edge of the filter main body portion 84. It is composed. 13 is a front view of the filter 27, FIG. 14 is a cross-sectional view taken along the line XIV-XIV in FIG. 13, FIG. 15 is a cross-sectional view of the main part of the filter 27, and FIGS. A front view, a side view, and FIGS. 19 to 21 show a perspective view, a front view, and a side view of the mesh portion 85, respectively.
図16〜図18に示すように、樹脂製のフィルタ本体部84は、内周部分で円状の中央開口部86(第1開口部)を形成する内環部87、内環部87の外周に配置される筒状の外筒部88、内環部87と外筒部88とを連結すると共にフィルタ27の軸心に対して放射状に形成される複数の第1リブ部89(補強リブ)、内環部87と外筒部88との間を所定領域被う減速部90とから構成している。 As shown in FIGS. 16 to 18, the resin filter main body 84 includes an inner ring portion 87 that forms a circular central opening 86 (first opening) at the inner peripheral portion, and the outer periphery of the inner ring portion 87. A plurality of first rib portions 89 (reinforcing ribs) that are radially formed with respect to the axial center of the filter 27 while connecting the cylindrical outer tube portion 88, the inner ring portion 87, and the outer tube portion 88 disposed in The speed reducing portion 90 covers a predetermined area between the inner ring portion 87 and the outer tube portion 88.
図15に示すように、内環部87は、内環部87の後方側裏面を形成する内環裏面部87a、内環部87の先端部分を形成する内環先端部87b、内環先端部87b外周の軸心方向後方側に形成された内環段部87c、開口部86内縁部で且つ内環裏面部87aに凸設される第2リブ部87dとから構成している。第2リブ部87dは、ボルトボス部59aの表面と当接するよう構成している。 As shown in FIG. 15, the inner ring portion 87 includes an inner ring back surface portion 87 a that forms a rear side rear surface of the inner ring portion 87, an inner ring tip portion 87 b that forms a tip portion of the inner ring portion 87, and an inner ring tip portion. The inner ring step 87c is formed on the rear side in the axial direction on the outer periphery of the outer periphery 87b, and the second rib 87d is provided at the inner edge of the opening 86 and protruded from the inner ring back surface 87a. The second rib portion 87d is configured to contact the surface of the bolt boss portion 59a.
外筒部88は、内周面に設けられる凸状の係合部88a、外周側面に設けられる断面クサビ状の突起部88b、追焚用噴口88eとを有し、軸心方向先端部は内環段部87cの表面と同一位置となるよう構成している。係合部88aは、前述した切欠部23d,59bと係合することでフィルタ27を切替弁ケース23に装着可能に構成している。また、フィルタ27を切替弁ケース23に装着したとき、追焚噴流噴出口26の開口と追焚用噴口88eとが対向するよう構成している。 The outer cylindrical portion 88 has a convex engaging portion 88a provided on the inner peripheral surface, a wedge-shaped projection 88b provided on the outer peripheral side surface, and a memorial nozzle 88e. It is comprised so that it may become the same position as the surface of the ring step part 87c. The engaging portion 88a is configured so that the filter 27 can be attached to the switching valve case 23 by engaging with the notches 23d and 59b described above. Further, when the filter 27 is mounted on the switching valve case 23, the opening of the memorial jet outlet 26 and the memorial nozzle 88e are opposed to each other.
第1リブ部89は、内環部87と外筒部88とによって囲まれる円環開口部91(第2開口部)内に複数設置している。第1リブ部89の配置位置は、軸心方向で内環段部87cよりも後方側で且つ内環裏面部87aよりも前方側とされる。つまり、第1リブ部89の前面と内環段部87cとの間には間隙が形成されるよう構成している。 A plurality of first rib portions 89 are installed in an annular opening 91 (second opening) surrounded by the inner ring portion 87 and the outer tube portion 88. The arrangement position of the first rib portion 89 is the rear side of the inner ring step portion 87c and the front side of the inner ring back surface portion 87a in the axial direction. That is, a gap is formed between the front surface of the first rib portion 89 and the inner ring step portion 87c.
減速部90は、第1リブ部89と同様に、円環開口部91内に設置され、複数の連通可能な孔を備えた円弧状板材で構成している。減速部90は、フィルタ27を切替弁ケース23に装着したとき、吸込端部83と対向する位置に形成されている。尚、減速部90の孔はメッシュ部85のメッシュ孔よりも大とされている。 Similar to the first rib portion 89, the speed reduction portion 90 is installed in the annular opening 91 and is formed of an arc-shaped plate member having a plurality of holes that can communicate with each other. The deceleration unit 90 is formed at a position facing the suction end 83 when the filter 27 is mounted on the switching valve case 23. In addition, the hole of the deceleration part 90 is made larger than the mesh hole of the mesh part 85. FIG.
図19〜図21に示すように、メッシュ部85は、湯水が通過可能なメッシュ状の正面部85aと、正面部85a上にメッシュ部分を横切るように放射状に形成する複数のメッシュ桟部85b、メッシュ部85の側部を形成する円筒状の外周部85c、突起部88bと係合可能な取付部85d、外周部85cの後側端部に設けられ追焚用噴口88eの形状に切欠いた追焚用切欠部85eから構成する。 As shown in FIGS. 19-21, the mesh part 85 has a mesh-shaped front part 85a through which hot and cold water can pass, and a plurality of mesh bar parts 85b formed radially on the front part 85a so as to cross the mesh part. A cylindrical outer peripheral portion 85c that forms the side portion of the mesh portion 85, a mounting portion 85d that can be engaged with the protrusion 88b, and a rear end portion provided on the rear end portion of the outer peripheral portion 85c that is notched in the shape of the remedy nozzle 88e. It is comprised from the notch part 85e for scissors.
本実施例のメッシュ部85は、例えば、厚さ0.6mmのステンレス板材をプレス加工により、一端が閉塞された円筒体をプレス形成する。この円筒体の一端面にエッチング加工を施し、微小孔を有するメッシュとメッシュ桟部85bとを備えた正面部85aを形成している。 For example, the mesh portion 85 of this embodiment presses a cylindrical body whose one end is closed by pressing a stainless steel plate having a thickness of 0.6 mm. One end surface of the cylindrical body is etched to form a front portion 85a including a mesh having a minute hole and a mesh bar portion 85b.
正面部85aは、内周部裏面を内環段部87cの表面に当接すると共に、外周部裏面を外筒部88の軸心方向先端部表面に当接するよう構成している。つまり、第1リブ部89の前面と正面部85aの裏面との間には間隙が形成されている。しかも、正面部85aの内周端部は、内環先端部87bの側面に当接させることで、加工で生じる切断部が表面に露出するのを防止している。 The front portion 85 a is configured such that the inner peripheral portion back surface abuts on the surface of the inner ring step portion 87 c and the outer peripheral portion rear surface abuts on the surface in the axial direction of the outer cylinder portion 88. That is, a gap is formed between the front surface of the first rib portion 89 and the back surface of the front surface portion 85a. Moreover, the inner peripheral end portion of the front surface portion 85a is brought into contact with the side surface of the inner ring front end portion 87b, thereby preventing the cut portion generated by processing from being exposed to the surface.
次に、各運転モードについて説明する。
循環アダプタ4は、注湯運転モード、追焚運転モード、気泡運転モードの3つの運転モードが実行可能である。尚、ユーザは、操作パネル9上の押し釦で何れかの運転モードを選択可能になっている。
Next, each operation mode will be described.
The circulation adapter 4 can execute three operation modes: a pouring operation mode, a chasing operation mode, and a bubble operation mode. The user can select one of the operation modes with a push button on the operation panel 9.
(注湯運転モード)
操作部74をノーマル位置(図2参照)に操作し、操作パネル9で注湯運転モードを選択すると、水が導入管10に導入される。第1熱供給部5に移動した水は加熱された後、排出管12に進行する。この時、コントローラ8の指示により、電磁弁17が開作動して湯は分岐排出管16を経由して復路13に導かれて一部の湯水は復路13から循環アダプタ4へ導入され、吸込口25から吐出する。
(Pouring hot water operation mode)
When the operation unit 74 is operated to the normal position (see FIG. 2) and the pouring operation mode is selected on the operation panel 9, water is introduced into the introduction pipe 10. The water moved to the first heat supply unit 5 is heated and then proceeds to the discharge pipe 12. At this time, the solenoid valve 17 is opened by the instruction of the controller 8 so that the hot water is led to the return path 13 via the branch discharge pipe 16 and a part of the hot water is introduced into the circulation adapter 4 from the return path 13. 25.
吸込口25から吐出した湯水は、第1吸込部81と第2吸込部82とから構成される扇状空間の移動により第1の減速が行われる。吸込端部83を通過した湯水は、格子状の桟部83aにより第2の減速が行われる。更に、減速部90が湯水の進行を妨げるため、第3の減速が行われる。これにより、勢いを減衰した湯水を浴槽1に対して供給することが可能となる。尚、吸込口25から湯水が供給されるのは注湯運転モードの時のみである。 The hot water discharged from the suction port 25 is first decelerated by the movement of the fan-shaped space composed of the first suction portion 81 and the second suction portion 82. The hot water that has passed through the suction end 83 is subjected to a second deceleration by the lattice-shaped crosspiece 83a. Furthermore, since the deceleration part 90 prevents the progress of hot water, 3rd deceleration is performed. Thereby, it becomes possible to supply hot water with attenuated momentum to the bathtub 1. Note that hot water is supplied from the suction port 25 only in the pouring operation mode.
一方、残りの湯水は往路14を通り吸入室39に導入される。吸入室39に導入された湯水は、第1切替弁50が旋回予備室37への経路を遮断すると共に第2切替弁53が開作動しているため、供給室38、第1凹部51及び第2凹部52を経由した後、浴槽下向きの追焚噴流噴出口26に送られる。以上により浴槽への注湯が行われる。 On the other hand, the remaining hot water is introduced into the suction chamber 39 through the forward path 14. The hot water introduced into the suction chamber 39 has the first switching valve 50 shut off the route to the swirl reserve chamber 37 and the second switching valve 53 is opened. After passing through the two recesses 52, it is sent to the chasing jet outlet 26 facing downward in the bathtub. Thus, the hot water is poured into the bathtub.
(気泡運転モード)
図22に示すように、操作部74をバブル位置(図2参照)に操作し、操作パネル9上で気泡運転モードを選択すると、コントローラ8がポンプ7を作動する。フィルタ27を通過した湯水は、吸込口25から吸込室35を経て復路13に導入する。この時、第2熱供給部6は作動しておらず、復路13に導入された温度のまま湯水は循環し往路14を通り吸入室39に導入される。
(Bubble operation mode)
As shown in FIG. 22, when the operation unit 74 is operated to the bubble position (see FIG. 2) and the bubble operation mode is selected on the operation panel 9, the controller 8 operates the pump 7. Hot water that has passed through the filter 27 is introduced into the return path 13 from the suction port 25 through the suction chamber 35. At this time, the second heat supply unit 6 is not operating, and hot water circulates at the temperature introduced into the return path 13 and is introduced into the suction chamber 39 through the forward path 14.
内環部87と外筒部88との間に複数の第1リブ部89を設けたため、フィルタ27の強度を確保している。また、第1リブ部89の前面と正面部85aの裏面との間に間隙を形成するため、湯水の通過可能な正面部85aの有効面積を拡大できることから、吸込口25に向かう湯水の流速を低減でき、正面部85aに付着する異物を低減できる。また、従来品のように正面部85aと第1リブ部89との間に毛髪が挟まることを防止でき、フィルタ27の清掃性が向上する。 Since the plurality of first rib portions 89 are provided between the inner ring portion 87 and the outer cylinder portion 88, the strength of the filter 27 is ensured. Further, since a gap is formed between the front surface of the first rib portion 89 and the back surface of the front surface portion 85a, the effective area of the front surface portion 85a through which hot water can pass can be expanded, so the flow rate of hot water toward the suction port 25 is increased. It can reduce, and the foreign material adhering to the front part 85a can be reduced. Moreover, it can prevent that hair is pinched between the front part 85a and the 1st rib part 89 like a conventional product, and the cleaning property of the filter 27 improves.
吸入室39から旋回予備室37に入った湯水は連通路36を通り連通路開口41から旋回室34に導入される。連通路36は旋回室34の接線方向に接続されているため、湯水は旋回室34の長手方向の中心軸を中心に高速旋回を行い、所定の負圧が旋回室34内に発生する。この負圧により吸引された空気は吸気連通路45から旋回室34の中央部分に吸引され、湯水と混合され、気泡混合湯水が旋回しながら水平方向に開口する気泡噴流噴出口24から噴出される。 Hot water that has entered the preliminary swirl chamber 37 from the suction chamber 39 passes through the communication passage 36 and is introduced into the swirl chamber 34 through the communication passage opening 41. Since the communication path 36 is connected in the tangential direction of the swirl chamber 34, the hot water swirls around the central axis in the longitudinal direction of the swirl chamber 34, and a predetermined negative pressure is generated in the swirl chamber 34. The air sucked by the negative pressure is sucked into the central portion of the swirl chamber 34 from the intake communication passage 45 and mixed with hot water, and the bubble mixed hot water is ejected from the bubble jet outlet 24 that opens in the horizontal direction while swirling. .
特に、吸込口25を流れる湯水流速に比べて流速の遅い湯水が、第1、第2吸込部81,82で形成される吸込部のうち、流路面積が最大となる吸込端部83に対向する正面部85aの領域を通過するため、メッシュ部85への異物の集中付着を防止できる。しかも、扇形状とされる第1、第2吸込部81,82の扇形状の要部分に吸込口25を配置し、円弧部分に吸込端部83を配置したため、湯水流路形状を軸心方向から見てクランク形状とすることができ、流速を効果的に低下できる。 In particular, hot water having a slow flow rate compared to the flow rate of hot water flowing through the suction port 25 is opposed to the suction end portion 83 having the largest flow path area among the suction portions formed by the first and second suction portions 81 and 82. Since it passes through the area of the front portion 85a, it is possible to prevent the foreign matter from being concentrated on the mesh portion 85. In addition, since the suction port 25 is arranged in the fan-shaped main parts of the first and second suction parts 81 and 82 that are fan-shaped, and the suction end 83 is arranged in the arc part, the hot water channel shape is axially oriented. As a result, the crank shape can be obtained, and the flow velocity can be effectively reduced.
更に、第2リブ部87dを設けたため、正面部85aと吸込端部83との間隔を均一にでき、異物の集中付着を防止すると共に、正面部85aと吸込端部83との距離を離間できるため、一層流速低下を図ることができる。 Furthermore, since the second rib portion 87d is provided, the distance between the front surface portion 85a and the suction end portion 83 can be made uniform, the concentration of foreign matters can be prevented, and the distance between the front surface portion 85a and the suction end portion 83 can be separated. Therefore, the flow velocity can be further reduced.
(追焚運転モード)
操作部74をノーマル位置(図2参照)に操作し、操作パネル9上で追焚運転モードを選択すると、コントローラ8の指示によりポンプ7及び第2熱供給部6が作動を開始し、浴槽内の湯水を吸込口25から復路13に導入する。第2熱供給部6により加熱された湯水は往路14を通り吸入室39に導入される。吸入室39以降の経路は注湯運転モードと同様である。
(Mourning mode)
When the operation unit 74 is operated to a normal position (see FIG. 2) and the memorial operation mode is selected on the operation panel 9, the pump 7 and the second heat supply unit 6 start to operate according to instructions from the controller 8, and the inside of the bathtub Hot water is introduced into the return path 13 through the suction port 25. The hot water heated by the second heat supply unit 6 is introduced into the suction chamber 39 through the forward path 14. The path after the suction chamber 39 is the same as in the pouring operation mode.
(安全装置機能)
最後に、安全装置機能について説明する。操作部74をバブル位置に操作し、操作パネル9上で追焚運転モードを選択すると、コントローラ8の指示によりポンプ7及び第2熱供給部6が作動を開始し、浴槽内の湯水を吸込口25から復路13に導入する。第2熱供給部6により加熱された湯水は往路14を通り吸入室39に導入される。
(Safety device function)
Finally, the safety device function will be described. When the operation unit 74 is operated to the bubble position and the memorial operation mode is selected on the operation panel 9, the pump 7 and the second heat supply unit 6 start to operate according to an instruction from the controller 8, and the hot water in the bathtub is sucked in. 25 to the return path 13. The hot water heated by the second heat supply unit 6 is introduced into the suction chamber 39 through the forward path 14.
当初、軸受け部材48が傾斜部73に摺接しているため、弁軸49を第2切替弁53が閉弁し第1切替弁50が開弁する第1位置となっているが、形状記憶合金製バネ56が伸張して弁軸49を第2位置、所謂軸受け部材54と傾斜部73とが離間する状態に切替え、高温の湯水を追焚噴流噴出口26に誘導する。 Initially, since the bearing member 48 is in sliding contact with the inclined portion 73, the valve shaft 49 is in the first position where the second switching valve 53 is closed and the first switching valve 50 is opened. The spring 56 is extended to switch the valve shaft 49 to a second position, that is, a state in which the so-called bearing member 54 and the inclined portion 73 are separated from each other, and hot hot water is guided to the memorial jet outlet 26.
次に、前記実施例を部分的に変更した変形例について説明する。
1〕前記実施例においては、3つの運転モードを実現可能な循環アダプタに装着するフィルタの例について説明したが、少なくとも、浴槽の湯水を吸い込む吸込口を備える循環アダプタであれば、本発明のフィルタ構造を適用できる。
Next, a modification in which the above embodiment is partially changed will be described.
1] In the above embodiment, an example of a filter attached to a circulation adapter capable of realizing three operation modes has been described. However, at least if the circulation adapter has a suction port for sucking hot water in a bathtub, the filter of the present invention Structure can be applied.
2〕その他、当業者であれば、本発明の趣旨を逸脱することなく、前記実施例に種々の変更を付加した形態で実施可能であり、本発明はそのような変更形態も包含するものである。 2] In addition, those skilled in the art can implement the present invention in various forms added with various modifications without departing from the spirit of the present invention, and the present invention includes such modifications. is there.
本発明は、浴槽に湯水を供給するために浴槽に取付けて使用される循環アダプタのフィルタ全般に利用することができ、特に、フィルタ有効面積の増加が要求されるフィルタ構造に好適である。 INDUSTRIAL APPLICATION This invention can be utilized for the filter of the circulation adapter used by attaching to a bathtub in order to supply hot water to a bathtub, and is especially suitable for the filter structure where the increase in a filter effective area is requested | required.
1 浴槽
4 循環アダプタ
25 吸込口
27 フィルタ
74 操作部
83 吸込端部
84 フィルタ本体部(本体部)
85 メッシュ部(フィルタ部)
85a 正面部
86 中央開口部
87 内環部
88 外筒部
89 第1リブ部
91 円環開口部
DESCRIPTION OF SYMBOLS 1 Bathtub 4 Circulation adapter 25 Suction port 27 Filter 74 Operation part 83 Suction end part 84 Filter main-body part (main-body part)
85 mesh part (filter part)
85a Front part 86 Center opening 87 Inner ring part 88 Outer cylinder part 89 First rib part 91 Annular opening part
Claims (2)
前記本体部は、前記開口部内を横断すると共に前記フィルタ部と対向して配置された複数の補強リブを有し、
前記各補強リブと前記フィルタ部との間に間隙を形成したことを特徴とする循環アダプタのフィルタ構造。 In the filter structure of the circulation adapter, which has a main body portion provided with an opening capable of sucking hot water and being attached to the bathtub side surface of the circulation adapter, and a filter portion covering the opening of the main body portion,
The main body has a plurality of reinforcing ribs disposed across the opening and facing the filter.
A filter structure of a circulation adapter, wherein a gap is formed between each of the reinforcing ribs and the filter portion.
前記本体部は、前記操作部周りを囲うように形成された第1開口部と、前記吸込口周りを囲うように形成された第2開口部とを備えると共に、
前記複数の補強リブは、前記第2開口部を被う前記フィルタ部と対向して配置されたことを特徴とする請求項1に記載の循環アダプタのフィルタ構造。
The circulation adapter includes an operation unit that changes a circulation path of hot water formed in the bathtub-side surface region, and a suction port that sucks in hot water.
The main body includes a first opening formed so as to surround the operation portion, and a second opening formed so as to surround the suction port.
The filter structure of the circulation adapter according to claim 1, wherein the plurality of reinforcing ribs are arranged to face the filter portion covering the second opening.
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JPS6382158U (en) * | 1986-11-17 | 1988-05-30 | ||
JPS63159153U (en) * | 1987-04-06 | 1988-10-18 | ||
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JPH0527557U (en) * | 1991-09-12 | 1993-04-09 | 西田合金工業株式会社 | Sip connection for bathtub |
JPH1047783A (en) * | 1996-08-05 | 1998-02-20 | Noritz Corp | Bathtub connecting device for forced circulation |
JP2001029249A (en) * | 1999-05-18 | 2001-02-06 | Hatano Seisakusho:Kk | Connector for circulating hot water |
JP2002228270A (en) * | 2001-01-30 | 2002-08-14 | Onda Seisakusho:Kk | Circulation tool for bathtub |
JP2005300152A (en) * | 1999-05-18 | 2005-10-27 | Toto Ltd | Connector for circulating hot water |
JP2006017322A (en) * | 2004-06-30 | 2006-01-19 | Hatano Seisakusho:Kk | Bathtub hot water inlet device |
JP2006046864A (en) * | 2004-08-06 | 2006-02-16 | Onda Seisakusho Seki Kojo:Kk | Circulation tool for bathtub |
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JPS6382158U (en) * | 1986-11-17 | 1988-05-30 | ||
JPS63159153U (en) * | 1987-04-06 | 1988-10-18 | ||
JPH0248755U (en) * | 1988-09-29 | 1990-04-04 | ||
JPH0527557U (en) * | 1991-09-12 | 1993-04-09 | 西田合金工業株式会社 | Sip connection for bathtub |
JPH1047783A (en) * | 1996-08-05 | 1998-02-20 | Noritz Corp | Bathtub connecting device for forced circulation |
JP2001029249A (en) * | 1999-05-18 | 2001-02-06 | Hatano Seisakusho:Kk | Connector for circulating hot water |
JP2005300152A (en) * | 1999-05-18 | 2005-10-27 | Toto Ltd | Connector for circulating hot water |
JP2002228270A (en) * | 2001-01-30 | 2002-08-14 | Onda Seisakusho:Kk | Circulation tool for bathtub |
JP2006017322A (en) * | 2004-06-30 | 2006-01-19 | Hatano Seisakusho:Kk | Bathtub hot water inlet device |
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