JPS6128871B2 - - Google Patents

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は、モータの回転力により弁体を開放或
は閉塞作動させる構造の弁開閉装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a valve opening/closing device having a structure in which a valve body is opened or closed by the rotational force of a motor.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来、例えば洗濯機における排水弁の弁開閉装
置は、所謂ソレノイド形の電磁石をその作動源と
しており、電磁石の通電に伴なつて吸引変位する
可動鉄心により排水弁の弁体をこれを常に閉塞す
る方向に設けた発条体のばね力に抗して直接引張
り開放作動させる構造である。このため、電磁石
としては磁気吸引力の大きな大形なものが必要
で、その吸引時には大きな衝撃音が発生し、また
可動鉄心の吸引状態においては、電磁石及び可動
鉄心の組立誤差、これらに対する錆の発生或は異
物の介入等により可動鉄心が磁気中心たる正規の
吸引位置に至り得ない場合には、電磁石に大きな
電流が流れて大きな電磁音が発生するばかりでな
く、電磁石が焼損する危険性もあつた。 Conventionally, for example, a valve opening/closing device for a drain valve in a washing machine uses a so-called solenoid-type electromagnet as its operating source, and the valve body of the drain valve is always closed by a movable iron core that is suctioned and displaced as the electromagnet is energized. It has a structure in which the spring is directly pulled and released against the spring force of the spring provided in the direction. For this reason, a large electromagnet with a large magnetic attraction force is required, and when the electromagnet is attracted, a large impact noise is generated.Also, when the movable iron core is attracted, errors in assembling the electromagnet and the movable iron core, and rust on them may occur. If the movable core cannot reach the normal attraction position, which is the magnetic center, due to the occurrence of foreign matter or the intervention of foreign matter, a large current will flow through the electromagnet and not only will large electromagnetic noise be generated, but there is also the risk that the electromagnet will burn out. It was hot.

〔発明の目的〕[Purpose of the invention]

本発明は上記事情に鑑みてなされたもので、そ
の目的は、弁体を開放或は閉塞の状態に確実に保
持でき、弁体の作動に伴なう衝撃音或は弁体の作
動状態における電磁音等騒音の発生を極力防止
し、且つ焼損事故の発生をも防止し得る弁開閉装
置を提供するにある。 The present invention has been made in view of the above circumstances, and its purpose is to be able to reliably hold the valve body in an open or closed state, and to reduce the impact noise accompanying the operation of the valve body or in the operating state of the valve body. It is an object of the present invention to provide a valve opening/closing device which can prevent the generation of noise such as electromagnetic noise as much as possible, and can also prevent the occurrence of burnout accidents.

〔発明の概要〕[Summary of the invention]

本発明は、往復動により弁口を開閉する弁体
と、この弁体に常時閉塞或は開放方向のばね力を
及ぼす発条体と、前記弁体に回転力伝達機構を介
して連結され通電されると該弁体を前記発条体の
ばね力に抗して開放或は閉塞作動させるモータ
と、前記モータに対して接続並びに離脱可能に設
けられた一方向クラツチ機構を有し該一方向クラ
ツチ機構の接続状態において前記モータの通電に
伴う回転を許しながらその逆方向の回転を阻止す
るロツク装置と、通電されるとこのロツク装置の
一方向クラツチ機構を接続状態にする電磁石装置
と、前記モータ及び電磁石装置に対し通電する主
スイツチ装置と、前記弁体の作動完了時に作動し
て前記主スイツチ装置による通電にも係わらず前
記モータを断電する補助スイツチとから構成した
ものである。 The present invention provides a valve body that opens and closes a valve port by reciprocating motion, a spring body that constantly applies a spring force in the closing or opening direction to the valve body, and a spring body that is connected to the valve body via a rotational force transmission mechanism and is energized. and a motor for opening or closing the valve body against the spring force of the spring body, and a one-way clutch mechanism provided to be connectable to and detachable from the motor, the one-way clutch mechanism. a locking device that allows the motor to rotate as the motor is energized in the connected state and prevents rotation in the opposite direction; It is composed of a main switch device that energizes the electromagnet device, and an auxiliary switch that is activated when the operation of the valve body is completed and cuts off the power to the motor despite the energization by the main switch device.

〔発明の実施例〕[Embodiments of the invention]

以下本発明を脱水兼用洗濯機の排水弁に適用し
た一実施例を図面に基づいて説明する。１は外箱
２内に吊り棒３を介して弾性支持した水受槽、４
はこの水受槽１内に配設され内底部に撹拌翼５を
有する洗い及び脱水兼用の回転槽であり、これら
水受槽１及び回転槽４は該回転槽４の底部に形成
した複数個の透孔６（二個のみ図示）を介して互
に連通している。そして、前記回転槽４はその周
側壁を上方に向かつて漸拡する無孔のテーパ状に
形成し、脱水時に洗濯物から排除される水を回転
遠心力により揚水してこれを上部に形成した脱水
孔７群から外方に放出する構成としている。一
方、前記水受槽１はその背丈を若干低く形成して
上端が前記回転槽４の脱水孔７群より下方に位置
するようにしている。而して、前記水受槽１の上
部外周囲には該水受槽１の外周面との間に有底環
状の排水空間８を有する環状体９を前記回転槽４
の脱水孔７群と対向する如く形設している。これ
により、脱水時に前記回転槽４の脱水孔７群から
外方に放出される水は前記環状体９の排水空間８
内に直接排出されるようになり、従つて特に洗剤
洗い後のすすぎ洗い前に所謂中間的な脱水運転を
行なつて洗濯物中の洗剤液を排除する場合、前記
水受槽１及び回転槽４間の空間内に泡を充満させ
ることなくこれを行ない得て、その後のすすぎ洗
いを効率良く行なうことができるものである。１
０及び１１は前記水受槽１の外底部に配設した駆
動モータ及び駆動装置で、これらはベルト伝達機
構１２を介して互に連結されている。そして、図
示しないが前記駆動装置１１には駆動モータ１０
を撹拌翼５′又は回転槽４に対して選択的に連結
するスプリングクラツチ機構及びこれを撹拌翼５
及び回転槽４間で切換える切換装置並びに遊星歯
車機構等が設けられており、前記スプリングクラ
ツチ機構は常時は駆動モータ１０を撹拌翼５に連
結し、切換機構が作動されるとその連結を撹拌翼
５から回転槽４に切換えるようになつている。ま
た、前記駆動装置１１には図示しないブレーキ装
置が設けられており、該ブレーキ装置は常時は制
動状態にあつて回転槽４を拘束し、前記切換機構
がその作動時にスプリングクラツチ機構を撹拌翼
５から回転槽４に切換えるとき、同時に制動状態
から解放状態に切換えられて回転槽４に対する拘
束を解放するものである。１３は運転制御用の主
スイツチ装置たるタイマで、これは前記外箱２の
後部上方に配設した操作箱１４内に設けられ、摘
み１５により操作される。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a drain valve of a washing machine that also serves as a dehydrator will be described below with reference to the drawings. 1 is a water tank elastically supported within an outer box 2 via a hanging rod 3;
is a rotating tank for both washing and dewatering, which is disposed inside the water receiving tank 1 and has a stirring blade 5 at the inner bottom. They communicate with each other via holes 6 (only two are shown). The rotating tub 4 has a circumferential side wall formed in a non-porous tapered shape that gradually widens upward, and the water removed from the laundry during dehydration is pumped up by the rotational centrifugal force and is formed in the upper part. The structure is such that the water is discharged to the outside from seven groups of dehydration holes. On the other hand, the water receiving tank 1 is formed to have a slightly lower height so that its upper end is located below the group of 7 dewatering holes of the rotating tank 4. An annular body 9 having a bottomed annular drainage space 8 between the outer circumference of the upper part of the water receiving tank 1 and the outer peripheral surface of the water receiving tank 1 is connected to the rotating tank 4.
It is formed so as to face the seven groups of dehydration holes. As a result, water discharged outward from the group of dewatering holes 7 of the rotary tank 4 during dewatering is removed from the drainage space 8 of the annular body 9.
Therefore, especially when performing a so-called intermediate dehydration operation to remove the detergent liquid from the laundry after detergent washing and before rinsing, the water receiving tank 1 and the rotating tank 4 This can be done without filling the space between them with bubbles, and the subsequent rinsing can be done efficiently. 1
Reference numerals 0 and 11 denote a drive motor and a drive device disposed at the outer bottom of the water receiving tank 1, and these are connected to each other via a belt transmission mechanism 12. Although not shown, the drive device 11 includes a drive motor 10.
A spring clutch mechanism selectively connects the agitating blade 5' or the rotating tank 4 to the agitating blade 5' or the rotating tank 4;
The spring clutch mechanism normally connects the drive motor 10 to the stirring blade 5, and when the switching mechanism is activated, the connection is connected to the stirring blade 5. 5 to rotating tank 4. Further, the drive device 11 is provided with a brake device (not shown), which is normally in a braking state to restrain the rotating tank 4, and when the switching mechanism is activated, the spring clutch mechanism is connected to the stirring blade 5. When switching from the braking state to the rotating tank 4, the braking state is simultaneously switched to the releasing state to release the restraint on the rotating tank 4. A timer 13 is a main switch device for operation control, and is provided in an operation box 14 disposed above the rear portion of the outer box 2, and is operated by a knob 15.

さて、１６は前記水受槽１の外底部に垂下状態
に配設固定した基板で、その下面には排水弁１７
をねじ止めにより固定している。ここで、この排
水弁１７について詳述すれば、１８は例えば合成
樹脂により形成した上面開放形の弁ケースで、そ
の側面壁には入水口１９を形成し、該入水口１９
部から側方に向けて一体に延出した口体２０を前
記水受槽１の底部に形成した排水口２１にホース
２２を介して連結している。また、前記弁ケース
１８の底面壁には出水口２３を形成し、該出水口
２３部から下方に向かつて一体に延出する二分岐
形の口体２４の一方の分岐路を排水ホース２５の
一端に連結すると共に他方の分岐路を前記環状体
９の底部に形成した排水口２６にホース２７を介
して連結している。２８は弁口たる前記出水口２
３を開閉する弁体で、これは蛇腹筒状部２８ａ及
びパツキン部２８ｂと共に一体に形成してある。
２９は略中央部位にボス部２９ａを一体に形設し
た例えば合成樹脂製の蓋で、これは前記弁ケース
１８の開口上面を前記弁体２８のパツキン部２８
ｂを介して水密に閉鎖するものであり、弁ケース
１８を前記基板１６に固定する際にその取付ねじ
等を利用して該弁ケース１８に固定してある。３
０は弁棒で、これは前記蓋２９のボス部２９ａに
上下摺動可能に挿通支持され、下端を前記弁体２
８に埋設状態に連結している。３１は発条体たる
圧縮スプリングで、これは前記蓋２９及び弁体２
８間に位置するようにして前記弁棒３０に遊挿さ
れ、弁体２８に常時閉塞方向（第２図において下
方）に向かうばね力を及ぼしている。前記排水弁
１７は以上のように構成されている。 Now, reference numeral 16 denotes a board fixed to the outer bottom of the water receiving tank 1 in a hanging state, and a drain valve 17 is provided on the bottom surface of the board.
is fixed with screws. Here, in detail about the drain valve 17, 18 is a top-open valve case made of synthetic resin, for example, and a water inlet 19 is formed in the side wall of the valve case.
A spout 20 integrally extending laterally from the water receiving tank 1 is connected to a drain port 21 formed at the bottom of the water receiving tank 1 via a hose 22. Further, a water outlet 23 is formed in the bottom wall of the valve case 18, and one branch path of a bifurcated mouth body 24 that integrally extends downward from the water outlet 23 is connected to the drain hose 25. It is connected to one end, and the other branch is connected to a drain port 26 formed at the bottom of the annular body 9 via a hose 27. 28 is the water outlet 2 which is a valve port.
3, which is integrally formed with the bellows cylindrical portion 28a and the packing portion 28b.
Reference numeral 29 denotes a lid made of synthetic resin, for example, which is integrally formed with a boss portion 29a approximately in the center, which connects the upper surface of the opening of the valve case 18 to the packing portion 28 of the valve body 28.
When the valve case 18 is fixed to the base plate 16, the valve case 18 is fixed to the valve case 18 using the mounting screws or the like. 3
0 is a valve stem, which is inserted into and supported by the boss portion 29a of the lid 29 so as to be able to slide up and down, and whose lower end is connected to the valve body 2.
8 in a buried state. Reference numeral 31 denotes a compression spring serving as a spring, which is attached to the lid 29 and the valve body 2.
It is loosely inserted into the valve stem 30 so as to be located between 8 and 8, and always exerts a spring force on the valve body 28 in the closing direction (downward in FIG. 2). The drain valve 17 is constructed as described above.

３２は前記基板１６の側面に配設固定したモー
タケースで、その内部には前記排水弁１７の作動
源たるモータ３３及び該モータ３３の回転力を減
速して出力軸３４に伝達する減速機構３５等を設
けている。この減速機構３５は前記モータ３３の
回転軸３３ａに取着したピニオン３６及び該ピニ
オン３６に噛合する中間歯車３７並びに前記出力
軸３４に取着され該中間歯車３７に噛合する大歯
車３８から成る。３９は前記モータ３３の回転力
を前記弁体２８に伝達するための回転力伝達機構
４０の一部を構成する巻取ローラで、これを前記
基板１６から外方に突出する前記出力軸３４の一
端に取着する。４１はワイヤで、これの一端を前
記巻取ローラ３９に連結し、他端を前記弁棒３０
の上端に連結具４２を介して連結する。前記ワイ
ヤ４１はモータ３３の回転に伴なう巻取ローラ３
９の矢印４３方向の回動により該巻取ローラ３９
に巻上げられて弁体２８を圧縮スプリング３１の
ばね力に抗して開放方向（第２図において上方）
に移動させる。４４は前記基板１６の側面に配設
固定した補助スイツチとしてのマイクロスイツチ
で、その上面部には作動子４４ａに対向する板ば
ね４６が上下変位可能に設けてある。４６は前記
出力軸３４の突出先端部に回動自在に枢支したア
ームで、これと基板１６との間には所謂トグル作
用を行なう引張スプリング４７が張架されてお
り、該アーム４６は常時は引張スプリング４７の
ばね力により矢印４８方向に回動付勢されて基板
１６に切起し形成したストツパ片１６ａに衝止さ
れている。一方、前記巻取ローラ３９の側面の対
応両側には突起３９ａ及び３９ｂが突設されてお
り、巻取ローラ３９の矢印４３方向の回動に伴な
つて一方の突起３９ａが前記アーム４６に係合す
ると、該アーム４６は前記引張スプリング４７の
ばね力に抗して反矢印４８方向に回動する。そし
て、巻取ローラ３９が矢印４３方向に所定量回動
してアーム４６が第５図に二点鎖線で示す中立位
置を通過すると、前記引張スプリング４７のばね
力がアーム４６に対して反矢印４８方向に回動付
勢するように作用するため、アーム４６が巻取ロ
ーラ３９の回動とは無関係に反矢印４８方向に素
早く回動して前記マイクロスイツチ４４の作動子
４４ａを板ばね４５を介して押圧するようになつ
ている。４９はロツク装置５０の一部を構成する
一方向クラツチ機構で、これを詳述すれば、５１
は前記モータケース３２に回転を拘束された状態
で往復動し得るように挿通支持した中空軸で、そ
のモータケース３２内の一端には端面に複数個の
ラチエツト歯５２ａを形設したラチエツト車５２
を取着している。５３は一端部を前記中空軸５１
に挿入支持するようにして前記モータケース３２
内に回転自在に枢支した枢軸で、これには一方の
側面に前記ラチエツト車５２のラチエツト歯５２
ａに対応する複数個のラチエツト歯５４ａを形設
した歯車５４を取着し、該歯車５４を前記ピニオ
ン３６に噛合させている。５５は圧縮スプリング
で、これは前記ラチエツト車５２及び歯車５４間
に位置するようにして前記枢軸５３に遊挿され、
ラチエツト車５２を常時離脱方向（第３図におい
て左方）に付勢している。５６は小形の電磁石装
置で、これは前記基板１６の側面に配設固定して
ある。５７は途中部位を前記電磁石装置５６の支
持枠５８に回動可能に枢支した可動鉄片で、これ
は支持枠５８との間に張架した引張スプリング５
９により常時矢印６０方向に回動付勢されてい
る。６１は前記可動鉄片５７に取着した板ばね
で、その先端部は前記基板１６から外方に突出す
る前記中空軸５１の一端部に対向している。而し
て、前記可動鉄片５７は電磁石装置５６が通電さ
れるとその鉄心５６ａに吸引されて引張スプリン
グ５９のばね力に抗して反矢印６０方向に回動し
て、この回動変位によつて板ばね６１が前記中空
軸５１を押圧する。すると、該中空軸５１は前記
ラチエツト車５２と共に圧縮スプリング５５のば
ね力に抗して接続方向（第３図において右方）に
移動し、ラチエツト車５２のラチエツト歯５２ａ
を前記歯車５４のラチエツト歯５４ａに係合さ
せ、以てラチエツト車５２を歯車５４及びピニオ
ン３６を介して前記モータ３３の回転軸３３ａに
対し接続状態にする。ところで、前記モータ３３
の通電に伴なう回転軸３３ａの回転方向は矢印６
２方向であり、この場合の歯車５４の回転方向は
矢印６３方向であるため、該歯車５４のラチエツ
ト歯５４ａは前記ラチエツト車５２が接続状態に
あつても該ラチエツト車５２を板ばね６１のばね
力に抗して押し上げるように変位させながらその
ラチエツト歯５２ａの傾斜面上を摺動する。従つ
て、前記モータ３３の回転軸３３ａはラチエツト
車５２が接続状態にあつてもその通電により回転
し得るようになつており、モータ３３が断電され
るとラチエツト車５２のラチエツト歯５２ａと歯
車５４のラチエツト歯５４ａとの噛合により、回
転軸３３ａの反矢印６２方向の所謂逆回転が阻止
される構成である。 Reference numeral 32 denotes a motor case arranged and fixed on the side surface of the board 16, and inside thereof there is a motor 33 which is the operating source of the drain valve 17, and a deceleration mechanism 35 which decelerates the rotational force of the motor 33 and transmits it to the output shaft 34. etc. are established. This speed reduction mechanism 35 includes a pinion 36 attached to the rotating shaft 33a of the motor 33, an intermediate gear 37 that meshes with the pinion 36, and a large gear 38 that is attached to the output shaft 34 and meshes with the intermediate gear 37. Reference numeral 39 denotes a take-up roller that constitutes a part of a rotational force transmission mechanism 40 for transmitting the rotational force of the motor 33 to the valve body 28, and is connected to the output shaft 34 that projects outward from the base plate 16. Attach it to one end. 41 is a wire, one end of which is connected to the winding roller 39, and the other end is connected to the valve rod 30.
is connected to the upper end of the connector via a connector 42. The wire 41 is connected to the winding roller 3 as the motor 33 rotates.
The take-up roller 39 is rotated in the direction of arrow 43 of 9.
The valve body 28 is moved in the opening direction (upward in FIG. 2) against the spring force of the compression spring 31.
move it to Reference numeral 44 designates a micro switch as an auxiliary switch arranged and fixed on the side surface of the board 16, and a leaf spring 46 facing the actuator 44a is provided on the upper surface of the micro switch so as to be vertically movable. Reference numeral 46 denotes an arm rotatably supported on the protruding tip of the output shaft 34, and a tension spring 47 that performs a so-called toggle action is stretched between this arm and the substrate 16, and the arm 46 is always is urged to rotate in the direction of the arrow 48 by the spring force of the tension spring 47, and is stopped by a stopper piece 16a cut and raised on the base plate 16. On the other hand, protrusions 39a and 39b are provided on corresponding opposite sides of the side surface of the take-up roller 39, and as the take-up roller 39 rotates in the direction of arrow 43, one protrusion 39a engages with the arm 46. When the arms 46 are engaged, the arm 46 rotates in the opposite direction of the arrow 48 against the spring force of the tension spring 47. When the take-up roller 39 rotates a predetermined amount in the direction of the arrow 43 and the arm 46 passes through the neutral position indicated by the two-dot chain line in FIG. Since the arm 46 acts to rotate in the 48 direction, the arm 46 quickly rotates in the opposite direction of the arrow 48 regardless of the rotation of the take-up roller 39, and the actuator 44a of the micro switch 44 is urged against the leaf spring 45. It is designed to be pressed through. 49 is a one-way clutch mechanism that constitutes a part of the locking device 50;
is a hollow shaft that is inserted into and supported by the motor case 32 so as to be able to reciprocate while its rotation is restricted, and at one end inside the motor case 32 there is a ratchet wheel 52 having a plurality of ratchet teeth 52a formed on the end surface.
is attached. 53 connects one end to the hollow shaft 51
The motor case 32 is inserted into and supported by the motor case 32.
A pivot shaft rotatably supported within the shaft, which has ratchet teeth 52 of the ratchet wheel 52 on one side.
A gear 54 having a plurality of ratchet teeth 54a corresponding to the number a is attached, and the gear 54 is meshed with the pinion 36. 55 is a compression spring, which is loosely inserted into the pivot shaft 53 so as to be located between the ratchet wheel 52 and the gear 54;
The ratchet wheel 52 is always urged in the detachment direction (to the left in FIG. 3). Reference numeral 56 denotes a small electromagnetic device, which is arranged and fixed on the side surface of the substrate 16. Reference numeral 57 denotes a movable iron piece whose intermediate portion is rotatably supported on the support frame 58 of the electromagnet device 56, and this is a movable iron piece that is supported by the tension spring 5 stretched between it and the support frame 58.
9, it is always urged to rotate in the direction of arrow 60. Reference numeral 61 denotes a leaf spring attached to the movable iron piece 57, the tip of which faces one end of the hollow shaft 51 projecting outward from the base plate 16. When the electromagnetic device 56 is energized, the movable iron piece 57 is attracted to its iron core 56a and rotates in the opposite direction of the arrow 60 against the spring force of the tension spring 59, and due to this rotational displacement. A leaf spring 61 presses the hollow shaft 51. Then, the hollow shaft 51 moves together with the ratchet wheel 52 in the connection direction (to the right in FIG. 3) against the spring force of the compression spring 55, and the ratchet teeth 52a of the ratchet wheel 52 move.
is engaged with the ratchet teeth 54a of the gear 54, thereby connecting the ratchet wheel 52 to the rotating shaft 33a of the motor 33 via the gear 54 and pinion 36. By the way, the motor 33
The direction of rotation of the rotating shaft 33a due to energization is indicated by arrow 6.
In this case, the rotation direction of the gear 54 is in the direction of the arrow 63, so the ratchet teeth 54a of the gear 54 rotate the ratchet wheel 52 against the spring of the leaf spring 61 even when the ratchet wheel 52 is in the connected state. It slides on the inclined surface of the ratchet tooth 52a while being displaced so as to push up against the force. Therefore, the rotating shaft 33a of the motor 33 can be rotated by the energization even when the ratchet wheel 52 is in the connected state, and when the motor 33 is de-energized, the ratchet teeth 52a of the ratchet wheel 52 and the gear are rotated. The so-called reverse rotation of the rotary shaft 33a in the opposite direction of the arrow 62 is prevented by the meshing with the ratchet teeth 54a of the rotary shaft 33a.

６４は前記基板１６に軸６５を介して回動可能
に枢支した略逆Ｌ字状のレバーで、その一端は前
記連結具４２に回動可能に連結し、また他端は前
記駆動装置１１の切換機構に連結してあり、前記
ワイヤ４１の巻上げに伴なう前記排水弁１７の開
放作動に連動して該切換機構を作動させる構成で
ある。 Reference numeral 64 denotes a substantially inverted L-shaped lever that is rotatably supported on the base plate 16 via a shaft 65, one end of which is rotatably connected to the connector 42, and the other end of which is rotatably connected to the drive device 11. The switching mechanism is connected to the switching mechanism, and the switching mechanism is operated in conjunction with the opening operation of the drain valve 17 accompanying the winding of the wire 41.

次に前記モータ３３及び電磁石装置５６の電気
回路について第４図を参照して述べる。６６及び
６７は例えば100Vの交流電源に接続される電源
端子で、一方の電源端子６６を前記タイマ１３の
カムスイツチ６８を介して母線６９に接続し、他
方の電源端子６７を直接母線７０に接続する。そ
して、母線６９及び７０間には前記マイクロスイ
ツチ４４とモータ３３の直列回路及び電磁石装置
５６を並列に接続する。なお、前記マイクロスイ
ツチ４４は常時は閉成状態にあり、作動子４４ａ
が押圧されると開放作動するようになつている。 Next, the electric circuits of the motor 33 and the electromagnet device 56 will be described with reference to FIG. 66 and 67 are power terminals connected to, for example, a 100V AC power source; one power terminal 66 is connected to the bus bar 69 via the cam switch 68 of the timer 13, and the other power terminal 67 is directly connected to the bus bar 70. . The series circuit of the micro switch 44 and the motor 33 and the electromagnet device 56 are connected in parallel between the bus bars 69 and 70. Note that the micro switch 44 is normally in a closed state, and the actuator 44a is closed.
It is designed to open when pressed.

次に上記のように構成した本実施例の作用につ
いて述べる。回転槽４内に洗濯物及び洗剤を投入
した後、タイマ１３をセツト操作すると、まず給
水装置（図示せず）を介して回転槽４及び水受槽
１内に水が供給され、これが所定水位に達する
と、その水位に応じたエアトラツプの空気圧に応
動して水位スイツチ（いずれも図示せず）が作動
し、これに基づいて給水が停止されると共に、駆
動モータ１０が駆動装置１１を介して撹拌翼５を
回転駆動し始め、以上により所謂洗剤洗い運転が
行なわれる。そして、タイマ１３のタイミングの
進行により洗剤洗い運転が終了すると、次に排水
行程に移行しカムスイツチ６８が閉成され、モー
タ３３及び電磁石装置５６に通電する。これによ
り、可動鉄片５７が電磁石装置５６の鉄心５６ａ
に吸引されて引張スプリング５９のばね力に抗し
て反矢印６０方向に回動し、この回動に伴なつて
板ばね６１が中空軸５１及びラチエツト車５２を
圧縮スプリング５５のばね力に抗して接続方向に
移動させ、以上によりラチエツト車５２がそのラ
チエツト歯５２ａを歯車５４のラチエツト歯５４
ａに係合させた接続状態になる。一方、モータ３
３の回転軸３３ａは歯車５４を矢印６３方向に回
転させてそのラチエツト歯５４ａをラチエツト車
５２のラチエツト歯５２ａに対し摺動させながら
自身は矢印６２方向に回転する。而して、回転軸
３３ａの回転はピニオン３６、中間歯車３７、大
歯車３８及び出力軸３４といつた減速機構３５を
介して巻取ローラ３９に伝達され、該巻取ローラ
３９が比較的低速度で矢印４３方向に回動してワ
イヤ４１を巻上げる。これにより、弁体２８が圧
縮スプリング３１のばね力に抗して上方に引上げ
られ出水口２３を開放し始める。また、斯る弁体
２８の開放作動に連動してレバー６４も軸６５を
中心に矢印７１方向に回動し、駆動装置１１の切
換機構を作動させる。そして、巻取ローラ３９が
所定の回動位置において突起３９ａをアーム４６
に係合させた後、更に該アーム４６と共に所定量
回動した時点即ち弁体２８が開放作動を略完了し
且つ駆動装置１１のスプリングクラツチ機構が駆
動モータ１０に対する連結を撹拌翼５から回転槽
４に切換えると共にブレーキ装置が回転槽４に対
する制動力を解除した時点でアーム４６が中立位
置を通過する。すると、それまでアーム４６を矢
印４８方向に回動付勢していた引張スプリング４
７が、次にはアーム４６を反矢印４８方向に回動
付勢するようになるため、該アーム４６は反矢印
４８方向に素早く回動してマイクロスイツチ４４
の作動子４４ａを板ばね４５を介して押圧し（第
５図参照）、これによりマイクロスイツチ４４が
開放作動しモータ３３を断電状態にする。ところ
で、モータ３３が断電状態になされると、巻取ロ
ーラ３９は排水弁１７の圧縮スプリング３１のば
ね力により反矢印４３方向の回動力を受けるが、
該巻取ローラ３９の反矢印４３方向の回動に対応
する歯車５４の回転方向は反矢印６３方向である
ため、歯車５４のラチエツト歯５４ａがラチエツ
ト車５２のラチエツト歯５２ａに噛合してモータ
３３の回転軸３３ａの反矢印６２方向の回動を阻
止し、以て巻取ローラ３９の反矢印４３方向の回
動を阻止する。従つて、弁体２８はモータ３３の
断電にも係わらずそのまま開放状態に維持され、
水受槽１及び回転槽４内の洗剤液が排水口２１、
ホース２２、排水弁１７及び排水ホース２５を介
して機外に排出される。 Next, the operation of this embodiment configured as described above will be described. After putting the laundry and detergent into the rotating tub 4, when the timer 13 is set and operated, water is first supplied to the rotating tub 4 and the water receiving tank 1 via a water supply device (not shown), and the water reaches a predetermined water level. When the water level reaches that level, a water level switch (none of which is shown) is activated in response to the air pressure of the air trap according to the water level, and based on this, the water supply is stopped, and the drive motor 10 starts stirring via the drive device 11. The blades 5 begin to be driven to rotate, and the so-called detergent washing operation is performed as described above. When the detergent washing operation is completed as the timing of the timer 13 progresses, the draining process is started, the cam switch 68 is closed, and the motor 33 and the electromagnet device 56 are energized. As a result, the movable iron piece 57 moves to the iron core 56a of the electromagnet device 56.
The plate spring 61 rotates in the opposite direction of the arrow 60 against the spring force of the tension spring 59, and along with this rotation, the leaf spring 61 rotates the hollow shaft 51 and the ratchet wheel 52 against the spring force of the compression spring 55. As a result, the ratchet wheel 52 moves its ratchet tooth 52a to the ratchet tooth 54 of the gear 54.
A is brought into the connected state where it is engaged with a. On the other hand, motor 3
The rotating shaft 33a of No. 3 rotates the gear 54 in the direction of arrow 63 and slides its ratchet teeth 54a against the ratchet teeth 52a of the ratchet wheel 52 while rotating itself in the direction of arrow 62. The rotation of the rotary shaft 33a is transmitted to the take-up roller 39 via a deceleration mechanism 35 including a pinion 36, an intermediate gear 37, a large gear 38, and an output shaft 34, and the take-up roller 39 is rotated at a relatively low speed. The wire 41 is wound up by rotating at a high speed in the direction of the arrow 43. As a result, the valve body 28 is pulled upward against the spring force of the compression spring 31 and begins to open the water outlet 23. Further, in conjunction with the opening operation of the valve body 28, the lever 64 also rotates in the direction of arrow 71 about the shaft 65, thereby operating the switching mechanism of the drive device 11. Then, the winding roller 39 moves the protrusion 39a onto the arm 46 at a predetermined rotational position.
At the point when the valve body 28 has substantially completed its opening operation and the spring clutch mechanism of the drive device 11 connects the drive motor 10 to the rotating tank from the stirring blade 5 to the point at which the valve body 28 has substantially completed its opening operation and the valve body 28 has further rotated a predetermined amount together with the arm 46. 4 and at the same time the brake device releases the braking force on the rotating tank 4, the arm 46 passes through the neutral position. Then, the tension spring 4, which had been biasing the arm 46 to rotate in the direction of the arrow 48,
7 then urges the arm 46 to rotate in the direction opposite to the arrow 48, so the arm 46 quickly rotates in the direction opposite to the arrow 48 and the micro switch 44
The actuator 44a is pressed through the leaf spring 45 (see FIG. 5), thereby opening the micro switch 44 and putting the motor 33 in a power-off state. By the way, when the motor 33 is turned off, the take-up roller 39 receives rotational force in the opposite direction of the arrow 43 due to the spring force of the compression spring 31 of the drain valve 17.
Since the rotating direction of the gear 54 corresponding to the rotation of the winding roller 39 in the direction opposite to the arrow 43 is in the direction opposite to the arrow 63, the ratchet teeth 54a of the gear 54 mesh with the ratchet teeth 52a of the ratchet wheel 52, and the motor 33 The rotating shaft 33a is prevented from rotating in the opposite direction of arrow 62, thereby preventing the take-up roller 39 from rotating in the opposite direction of arrow 43. Therefore, the valve body 28 is maintained in the open state even though the motor 33 is cut off,
The detergent liquid in the water receiving tank 1 and the rotating tank 4 flows through the drain port 21,
It is discharged outside the machine via the hose 22, the drain valve 17, and the drain hose 25.

次に上記排水が終了すると、タイマ１３のタイ
ミングにより所謂中間的な脱水行程に移行し、駆
動モータ１０に通電する。この場合、タイマ１３
のカムスイツチ６８は引続き閉成状態に維持され
るため、駆動モータ１０の回転力は回転槽４に伝
達され、該回転槽４が回転駆動される。而して、
この腕水運転において洗濯物から排除される洗剤
液は回転槽４の回転遠心力により揚水されて脱水
孔７群から環状体９の排水空間８内に放水されや
がて排出口２６、ホース２７、口体２４及び排水
ホース２５を介して機外に排出される。そして、
この中間的な脱水運転の終了に伴なつて、カムス
イツチ６８も開放され電磁石装置５６が断電状態
になる。これにより、可動鉄片５７が引張スプリ
ング５９のばね力により矢印６０方向に回動して
板ばね６１による中空軸５１の押圧を解除し、こ
れに伴なつて中空軸５１及びラチエツト車５２が
圧縮スプリング５５のばね力により離脱方向に移
動するため、該ラチエツト車５２が歯車５４のラ
チエツト歯５４ａから離反した離脱状態になる。
従つて、巻取ローラ３９がモータ３３の回転軸３
３ａ等の空回転を伴なつて反矢印４３方向に回動
し、弁体２８が圧縮スプリング３１のばね力によ
り押下げられて弁ケース１８の出水口２３を閉塞
する。また、この排水弁１７の閉塞作動に連動し
てレバー６４も反矢印７１方向に回動し、駆動装
置１１の切換機構を不作動状態にするため、スプ
リングクラツチ機構が駆動モータ１０に対する連
結を回転槽４から撹拌翼５に切換えると共にブレ
ーキ装置が制動状態となつて駆動モータ１０断電
後における回転槽４の惰性回転を制動する。更
に、巻取ローラ３９の反矢印４３方向の回動によ
り、アーム４６が突起３９ｂに係合されて引張ス
プリング４７のばね力に抗して矢印４８方向に回
動し、中立位置を通過した後は巻取ローラ３９の
停止にも係わらず引張スプリング４７のばね力に
より矢印４８方向に復帰回動する。これにより、
マイクロスイツチ４４が閉成状態に復帰する。 Next, when the water draining is completed, a transition is made to a so-called intermediate dewatering process according to the timing of the timer 13, and the drive motor 10 is energized. In this case, timer 13
Since the cam switch 68 continues to be maintained in the closed state, the rotational force of the drive motor 10 is transmitted to the rotating tank 4, and the rotating tank 4 is driven to rotate. Then,
The detergent liquid removed from the laundry during this washing operation is pumped up by the rotational centrifugal force of the rotary tank 4, and is discharged from the dehydration hole 7 group into the drainage space 8 of the annular body 9, and then flows through the discharge port 26, the hose 27, and the outlet. It is discharged outside the machine via the body 24 and the drain hose 25. and,
Upon completion of this intermediate dehydration operation, the cam switch 68 is also opened and the electromagnet device 56 is turned off. As a result, the movable iron piece 57 is rotated in the direction of arrow 60 by the spring force of the tension spring 59, releasing the pressure on the hollow shaft 51 by the leaf spring 61, and in conjunction with this, the hollow shaft 51 and the ratchet wheel 52 are rotated by the compression spring. Since the ratchet wheel 52 is moved in the disengagement direction by the spring force of the gear 55, the ratchet wheel 52 is in a disengaged state in which it is separated from the ratchet teeth 54a of the gear 54.
Therefore, the winding roller 39 is connected to the rotating shaft 3 of the motor 33.
3a etc. rotate in the counter-arrow direction 43, and the valve body 28 is pushed down by the spring force of the compression spring 31 to close the water outlet 23 of the valve case 18. Further, in conjunction with the closing operation of the drain valve 17, the lever 64 also rotates in the opposite direction of the arrow 71, and in order to disable the switching mechanism of the drive device 11, the spring clutch mechanism rotates the connection to the drive motor 10. At the same time as switching from the tank 4 to the stirring blade 5, the brake device enters a braking state and brakes the inertial rotation of the rotary tank 4 after the drive motor 10 is cut off. Further, as the take-up roller 39 rotates in the opposite direction of arrow 43, the arm 46 is engaged with the protrusion 39b and rotates in the direction of arrow 48 against the spring force of the tension spring 47, and after passing through the neutral position. Despite the stoppage of the take-up roller 39, the spring force of the tension spring 47 causes it to rotate back in the direction of arrow 48. This results in
The microswitch 44 returns to the closed state.

次に前述したと同様にして水受槽１及び回転槽
４内に水が貯留され、所謂すすぎ洗い運転が行な
われる。このすすぎ洗いでは回転槽４内に常時清
水が供給され、洗濯物をすすいだ後の汚水は水受
槽１の上端から環状体９の排水空間８内に溢出
し、排出口２６、ホース２７、口体２４及び排水
ホース２５を介して機外に排出される。そして、
このすすぎ洗い運転が終了すると、タイマ１３の
カムスイツチ６８が閉成され前述したと同様にし
て水受槽１及び回転槽４内の水が機外に排出され
る。この後、引続き脱水運転が行なわれ、該脱水
運転の終了に伴なつてカムスイツチ６８が開放さ
れ、以上により洗剤洗い、脱水、すすぎ洗い及び
脱水の各運転より成る洗濯運転を終了する。 Next, water is stored in the water receiving tank 1 and the rotating tank 4 in the same manner as described above, and a so-called rinsing operation is performed. In this rinsing, fresh water is constantly supplied into the rotary tank 4, and the dirty water after rinsing the laundry overflows from the upper end of the water receiving tank 1 into the drainage space 8 of the annular body 9, and flows through the outlet 26, the hose 27, and the outlet. It is discharged outside the machine via the body 24 and the drain hose 25. and,
When this rinsing operation is completed, the cam switch 68 of the timer 13 is closed, and the water in the water receiving tank 1 and the rotating tank 4 is discharged to the outside of the machine in the same manner as described above. Thereafter, the dehydration operation continues, and upon completion of the dehydration operation, the cam switch 68 is opened, thereby completing the washing operation consisting of detergent washing, dehydration, rinsing, and dehydration operations.

このように本実施例によれば、排水弁１７の作
動源をモータ３３としたので、従来のソレノイド
形電磁石を作動源とした場合のように衝撃音の発
生がなく、静かな弁動作が得られる。また、弁体
２８の開放作動完了後は、ロツク装置５０によつ
て弁体２８の開放状態を保持し、モータ３３は断
電状態にされるので、モータ３３が焼損する危険
性もない。しかも、タイマ１３のカムスイツチ６
８が閉成すると、モータ３３と共に電磁石装置５
６も通電され、これにより一方向クラツチ４９の
ラチエツト車５２が歯車５４のラチエツト歯５４
ａに係合する接続方向に移動するので、その後は
何時モータ３３が断電されても、即座にラチエツ
ト歯５４ａに係合して巻取ローラ３９の反矢印４
３方向の回動を阻止できる状態になる。従つて、
弁体２８が開放作動を完了した時点でモータ３３
がマイクロスイツチ４４により断電されると、即
座にラチエツト車５２のラチエツト歯５２ａが歯
車５４のラチエツト歯５４ａに係合して巻取ロー
ラ３９の反矢印４３方向の回動を阻止するため、
弁体２８の開放作動後に巻取ローラ３９が反矢印
４３方向に若干回動して弁体２８が不完全開放状
態になるといつた不都合を防止することができ
る。 As described above, according to the present embodiment, since the motor 33 is used as the operating source of the drain valve 17, there is no impact noise generated when the conventional solenoid type electromagnet is used as the operating source, and quiet valve operation is achieved. It will be done. Further, after the opening operation of the valve body 28 is completed, the valve body 28 is held in the open state by the locking device 50, and the motor 33 is cut off, so that there is no risk of the motor 33 being burnt out. Moreover, cam switch 6 of timer 13
8 closes, the electromagnet device 5 along with the motor 33
6 is also energized, which causes the ratchet wheel 52 of the one-way clutch 49 to engage the ratchet teeth 54 of the gear 54.
Since it moves in the connecting direction to engage the winding roller 39, even if the motor 33 is cut off at any time, it immediately engages the ratchet teeth 54a and moves the winding roller 39 opposite the arrow 4.
It becomes possible to prevent rotation in three directions. Therefore,
When the valve body 28 completes the opening operation, the motor 33
When the power is cut off by the micro switch 44, the ratchet teeth 52a of the ratchet wheel 52 immediately engage the ratchet teeth 54a of the gear 54 to prevent the take-up roller 39 from rotating in the opposite direction of the arrow 43.
It is possible to prevent an inconvenience in which the take-up roller 39 rotates slightly in the direction opposite to the arrow 43 after the valve body 28 is opened, resulting in the valve body 28 being in an incompletely opened state.

ところで、本実施例においてもロツク装置５０
の作動源は電磁石装置５６であるが、この電磁石
装置５６は従来のように直接弁体２８を引張るの
ではなくロツク装置５０のラチエツト車５２を移
動させるだけなので、それほど大きな電磁力は必
要でなく小形のもので充分であり、従つて大きな
電磁音を発生することもなく、低音作動が可能と
なる。 By the way, also in this embodiment, the lock device 50
The operating source is an electromagnet device 56, but this electromagnet device 56 does not directly pull the valve body 28 as in the conventional case, but only moves the ratchet wheel 52 of the lock device 50, so a large electromagnetic force is not required. A small size is sufficient, and therefore low-pitched operation is possible without generating large electromagnetic noise.

なお、上記実施例では巻取ローラ３９にワイヤ
４１を巻取らせて弁体２８を開放作動させるよう
に構成したが、これはピニオンとラツクの側合わ
せによつてモータ３３の回転をラツクの直線運動
に変換することにより、弁体２８を開放作動させ
るようにしてもよい。 In the above embodiment, the wire 41 is wound around the winding roller 39 to open the valve body 28, but this is because the motor 33 can be rotated in a straight line by aligning the pinion and the rack side by side. The valve body 28 may be operated to open by converting it into motion.

その他、本発明は上記し且つ図面に示す実施例
のみに限定されるものではなく、洗濯機はかりで
なく例えば食器洗い機の弁開閉装置等弁開閉装置
全般に適用し得、従つて発条体によつて常時閉塞
状態にされている弁のみならず常時開放状態にさ
れている弁にも適用し得る等、その要旨を逸脱し
ない範囲内で種々変形して実施することができ
る。 In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be applied not only to washing machine scales but also to valve opening/closing devices in general, such as a valve opening/closing device for a dishwasher. The present invention can be modified and implemented in various ways without departing from the gist of the invention, such as being applicable not only to valves that are always closed but also to valves that are always open.

〔発明の効果〕〔Effect of the invention〕

本発明は以上の説明から明らかなように、低音
作動が可能となり、且つ焼損事故の発生をも防止
することができ、しかもロツク装置の一方向クラ
ツチを接続状態にするための電磁石装置はモータ
による弁体の作動完了よりも以前に通電されてい
て、モータ断電と同時にその逆方向回転を阻止す
るようになるので、弁体がその作動完了後に若干
戻るといつた不都合は生ぜず、弁体を開放或は閉
塞の状態に確実に保持できる等の効果を奏する弁
開閉装置を提供するすることができるものであ
る。 As is clear from the above description, the present invention enables low-noise operation and prevents burnout accidents.Moreover, the electromagnetic device for bringing the one-way clutch of the locking device into the connected state is driven by a motor. Since the valve body is energized before its operation is completed, and its reverse rotation is prevented at the same time as the motor is de-energized, there is no inconvenience such as the valve body returning slightly after its operation is completed, and the valve body It is possible to provide a valve opening/closing device that can reliably hold the valve in an open or closed state.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の一実施例を示すもので、第１図
は脱水兼用洗濯機の全体的縦断側面図、第２図は
排水弁を断面にて示す要部の拡大図、第３図は第
２図中−線に沿う縦断面図、第４図は電気回
路図、第５図は作用説明図である。 図面中、１は水受槽、４は回転槽、８は排水空
間、９は環状体、１３はタイマ（主スイツチ装
置）、１７は排水弁、１８は弁ケース、１９及び
２３は入水口及び出水口（弁口）、２５は排水ホ
ース、２８は弁体、３０は弁棒、３１は圧縮スプ
リング、３３はモータ、３４は出力軸、３５は減
速機構、３９は巻取ローラ、４０は回転力伝達機
構、４１はワイヤ、４４はマイクロスイツチ（補
助スイツチ）、４６はアーム、４７は引張スプリ
ング、４９は一方向クラツチ機構、５０はロツク
装置、５２はラチエツト車、５４は歯車、５４ａ
はラチエツト歯、５５は圧縮スプリング、５６は
電磁石装置、５７は可動鉄片、６１は板ばね、６
８はカムスイツチである。 The drawings show one embodiment of the present invention, in which Fig. 1 is an overall vertical sectional side view of a washing machine with a dehydrating function, Fig. 2 is an enlarged view of the main part showing a drain valve in cross section, and Fig. 3 is an enlarged view of the main part of the drain valve. 2 is a vertical sectional view taken along the line - in FIG. 4, FIG. 4 is an electric circuit diagram, and FIG. 5 is an explanatory diagram of the operation. In the drawing, 1 is a water receiving tank, 4 is a rotating tank, 8 is a drainage space, 9 is an annular body, 13 is a timer (main switch device), 17 is a drain valve, 18 is a valve case, 19 and 23 are a water inlet and an outlet. Water port (valve port), 25 is a drain hose, 28 is a valve body, 30 is a valve stem, 31 is a compression spring, 33 is a motor, 34 is an output shaft, 35 is a reduction mechanism, 39 is a take-up roller, 40 is a rotational force Transmission mechanism, 41 is a wire, 44 is a micro switch (auxiliary switch), 46 is an arm, 47 is a tension spring, 49 is a one-way clutch mechanism, 50 is a lock device, 52 is a ratchet wheel, 54 is a gear, 54a
5 is a ratchet tooth, 55 is a compression spring, 56 is an electromagnetic device, 57 is a movable iron piece, 61 is a leaf spring, 6
8 is a cam switch.

Claims (1)

【特許請求の範囲】[Claims] １ 往復動により弁口を開閉する弁体と、この弁
体に常時閉塞或は開放方向のばね力を及ぼす発条
体と、前記弁体に回転力伝達機構を介して連結さ
れ通電されると該弁体を前記発条体のばね力に抗
して開放或は閉塞作動させるモータと、前記モー
タに対して接続並びに離脱可能に設けられた一方
向クラツチ機構を有し該一方向クラツチ機構の接
続状態において前記モータの通電に伴なう回転を
許しながらその逆方向の回転を阻止するロツク装
置と、通電されるとこのロツク装置の一方向クラ
ツチ機構を接続状態にする電磁石装置と、前記モ
ータ及び電磁石装置に対し通電する主スイツチ装
置と、前記弁体の作動完了時に作動して前記主ス
イツチ装置による通電にも係わらず前記モータを
断電する補助スイツチとを具備して成る弁開閉装
置。1. A valve body that opens and closes the valve port by reciprocating motion, a spring body that always applies a spring force in the closing or opening direction to the valve body, and a spring body that is connected to the valve body via a rotational force transmission mechanism and that when energized, A motor for opening or closing the valve body against the spring force of the spring body, and a one-way clutch mechanism provided to be connectable to and detachable from the motor, and a connected state of the one-way clutch mechanism. a lock device that allows the motor to rotate as the motor is energized but prevents rotation in the opposite direction; an electromagnet device that connects the one-way clutch mechanism of the lock device when energized; and the motor and the electromagnet. A valve opening/closing device comprising: a main switch device that energizes the device; and an auxiliary switch that operates when the operation of the valve body is completed and cuts off the power to the motor despite the energization by the main switch device.