JP2014195741A - Drum type washing machine - Google Patents

Drum type washing machine Download PDF

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JP2014195741A
JP2014195741A JP2014145532A JP2014145532A JP2014195741A JP 2014195741 A JP2014195741 A JP 2014195741A JP 2014145532 A JP2014145532 A JP 2014145532A JP 2014145532 A JP2014145532 A JP 2014145532A JP 2014195741 A JP2014195741 A JP 2014195741A
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water
drum
washing machine
water tank
end wall
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菊川 智之
Tomoyuki Kikukawa
智之 菊川
縄間 潤一
Junichi Nawama
潤一 縄間
大山 眞
Makoto Oyama
眞 大山
村尾 剛
Takeshi Murao
剛 村尾
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a drum type washing machine having high detergency by improving the efficiency of discharge of circulation water from a circulation pump via a discharge side pathway to clothing in a rotary drum, with a simple configuration in high reliability.SOLUTION: A headrace channel 55b is composed of an inner wall of a water tub 3 and a cover 55 attached to the inner wall of the water tub 3. Thus, even if washing water should leak in the headrace channel 55b, the leakage is completed within the water tub 3 and such an unsafe state as water leakage to outside of the washing machine can be prevented. Further, as a wider cross-sectional area of the headrace channel 55b than the hose can be secured, a low-loss water circulation pathway 16 can be provided.

Description

本発明は、有底円筒形に形成された回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、回転ドラムを回転駆動することにより回転ドラム内に収容した洗濯物を洗濯するドラム式洗濯機に関するものである。   In the present invention, a rotating drum formed in a bottomed cylindrical shape is installed in a water tank so that the direction of the rotation axis is horizontal or inclined downward from the horizontal direction from the front side to the open side to the back side as the bottom. The present invention relates to a drum type washing machine for washing laundry stored in a rotating drum by rotationally driving the rotating drum.

このようなドラム式洗濯機で、水槽内の洗濯水を循環ポンプで循環させる循環機能を有したものが既に知られている(例えば、特許文献1および2参照)。   A drum-type washing machine having such a circulation function that circulates washing water in a water tank with a circulation pump is already known (see, for example, Patent Documents 1 and 2).

特許文献1は、循環手段による回転ドラム内への噴射を、回転ドラム前面側から回転ドラム中心側に、ノズルに少しずつ角度を変えて複数形成されている噴射口より噴射し、高容量の被処理物を効率よく洗浄するものである。   In Patent Document 1, the injection into the rotating drum by the circulation means is performed from a plurality of injection ports formed by changing the angle little by little from the front surface side of the rotating drum to the center side of the rotating drum, and a high-capacity target. The processed product is efficiently cleaned.

特許文献2は、循環ポンプのポンプケーシングは、前記ポンプ羽根車の正逆転に応じて吐出が切り替わる二つの吐出口を有することで、回転ドラムの正逆転に応じて洗い時やすすぎ時の洗濯水の掛ける向きが変わるものである。   According to Patent Document 2, the pump casing of the circulation pump has two discharge ports that switch discharge according to the forward and reverse rotation of the pump impeller, so that the washing water when washing and rinsing according to the forward and reverse rotation of the rotary drum is performed. The direction in which is applied changes.

特開平10−127978号公報JP-A-10-127978 特開2008−073128号公報JP 2008-073128 A

しかし、上記特許文献1、2に開示の水循環技術は、それぞれポンプの吐出から吐出口にいたる導水経路をホースにより構成しているため、ホース自身や、洗浄、すすぎ、脱水時に衣類の偏りなどにより生じる回転ドラムのアンバランス振動に対する信頼性確保のための対策部材の増加や、振動絶縁不良などの課題があるとともに、複数の位置に吐出口を設ける毎に前記課題が増加するという課題を有していた。   However, the water circulation technologies disclosed in Patent Documents 1 and 2 are configured by a hose for the water guide path from the discharge of the pump to the discharge port, respectively. There are problems such as an increase in countermeasure members for ensuring reliability against unbalanced vibration of the generated rotating drum and problems such as poor vibration insulation, and the problem that the problem increases every time the discharge ports are provided at a plurality of positions. It was.

本発明は、水槽内の水を循環ポンプにより循環させるのに、循環ポンプからの吐出側経路による循環水の回転ドラム内の衣類への吐出の効率を上げることで洗浄力の高いドラム式洗濯機の実現を信頼性の高い簡易な構成で提供することにある。   The present invention relates to a drum-type washing machine having a high detergency by increasing the efficiency of discharging the circulating water from the circulation pump to the clothes in the rotating drum in order to circulate the water in the water tank by the circulation pump. Is to provide a simple configuration with high reliability.

上記目的を達成するために本発明に係るドラム式洗濯機は、洗濯機本体と、正面側に第1の開口を有し有底円筒形に形成され、周壁に多数の孔を有する回転ドラムと、正面側に第2の開口と前端壁とを有して背面側が閉塞された有底円筒形をなし、底部で排水可能に構成され、内部に前記回転ドラムを回転可能に支持して前記洗濯機本体内に設けられる水槽と、前記水槽の前端壁の裏面にカバーを溶着することにより構成される導水路と、洗濯水を回転ドラム内に噴射する噴射口と、前記水槽の底部から前記導水路と前記噴射口とをつなぐようにして設けられた水循環経路と、前記水循環経路中に設けられ、前記水槽の底部から取り出された洗濯水を前記噴射口から前記回転ドラム内に噴射させる循環ポンプとを具備し、前記導水路は、前記水槽の前端壁および前記カバーの双方により形成され、前記噴射口は、少なくとも前記水槽の前端壁を含んで形成されるように構成されることを特徴としている。   In order to achieve the above object, a drum-type washing machine according to the present invention includes a washing machine body, a rotating drum having a first opening on the front side, a bottomed cylindrical shape, and a plurality of holes in a peripheral wall. A bottomed cylindrical shape having a second opening and a front end wall on the front side and closed on the back side, configured to be drainable at the bottom, and rotatably supporting the rotating drum therein A water tank provided in the main body of the machine, a water conduit formed by welding a cover to the back surface of the front end wall of the water tank, an injection port for injecting washing water into the rotating drum, and the water guide from the bottom of the water tank. A water circulation path provided so as to connect the water channel and the injection port, and a circulation pump provided in the water circulation channel and configured to inject the wash water taken out from the bottom of the water tank into the rotary drum from the injection port And the water conduit is Formed by both the front end wall and the cover of the vessel, the injection port is characterized to be configured to be formed to include a front end wall of at least the water tub.

このような構成では、循環ポンプの吐出側の経路を水槽に一体に構成した接続部までの配管を振動絶縁のためホースで行い、接続部と一体に構成された水槽の内壁と、前記水槽の内壁に取り付けられたカバーにより構成された導水路及び噴射口を通じて噴射を行うため、仮に導水路で洗浄水の漏れがあったとしても、水槽内で完結するため機外への水漏れ等の不安全な状態に陥ることなく、また導水路の断面積をホースに比べ大きく取れるので低損失の水循環経路が実現できることから、循環ポンプからの吐出側経路による循環水の回転ドラム内の衣類への吐出の効率を上げることで洗浄力の高いドラム式洗濯機の実現を信頼性の高い簡易な構成で実現することが可能となる。   In such a configuration, a hose is used for vibration isolation for piping up to the connection portion that is configured integrally with the water tank on the discharge side of the circulation pump, the inner wall of the water tank that is configured integrally with the connection portion, and the water tank Since the injection is performed through the water conduit and the injection port constituted by the cover attached to the inner wall, even if there is a leakage of washing water in the water conduit, it will be completed in the water tank, so there will be no leakage of water outside the machine. Since the cross-sectional area of the conduit is larger than that of the hose without falling into a safe state, a low-loss water circulation path can be realized, so that the circulating water is discharged from the circulation pump to the clothing in the rotating drum. It is possible to realize a drum-type washing machine with high cleaning power with a simple and reliable configuration.

本発明のドラム式洗濯機によれば、導水路を水槽の内壁と、前記水槽の内壁に取り付けられたカバーにより構成することにより、接続部と一体に構成された水槽の内壁と、前記水槽の内壁に取り付けられたカバーにより構成された導水路及び噴射口を通じて噴射を行うため、仮に導水路で洗浄水の漏れがあったとしても、水槽内で完結するため機外への水漏れ等の不安全な状態に陥ることなく、また導水路の断面積をホースに比べ大きく取れるので低損失の水循環経路が実現できることから、循環ポンプからの吐出側経路による循環水の回転ドラム内の衣類への吐出の効率を上げることで洗浄力の高いドラム式洗濯機の実現を信頼性の高い簡易な構成で実現することが可能となる。   According to the drum-type washing machine of the present invention, the water guide channel is constituted by the inner wall of the water tank and the cover attached to the inner wall of the water tank, so that the inner wall of the water tank configured integrally with the connecting portion, and the water tank Since the injection is performed through the water conduit and the injection port constituted by the cover attached to the inner wall, even if there is a leakage of washing water in the water conduit, it will be completed in the water tank, so there will be no leakage of water outside the machine. Since the cross-sectional area of the conduit is larger than that of the hose without falling into a safe state, a low-loss water circulation path can be realized, so that the circulating water is discharged from the circulation pump to the clothing in the rotating drum. It is possible to realize a drum-type washing machine with high cleaning power with a simple and reliable configuration.

本発明の実施の形態1におけるドラム式洗濯機の概略構造を示す断面図Sectional drawing which shows schematic structure of the drum type washing machine in Embodiment 1 of this invention (a)同ドラム式洗濯機に用いた循環ポンプの断面図(b)同ドラム式洗濯機に用いた循環ポンプの側面図(A) Cross-sectional view of the circulation pump used in the drum type washing machine (b) Side view of the circulation pump used in the drum type washing machine (a)同ドラム式洗濯機の水槽の要部斜視図(b)同ドラム式洗濯機の水槽の前端壁を内方より見た平面図(A) Perspective view of main part of water tank of drum-type washing machine (b) Plan view of front end wall of water tank of drum-type washing machine viewed from the inside 同ドラム式洗濯機の水循環経路の導水路近傍の断面図Sectional view of the vicinity of the water conduit in the water circulation path of the drum type washing machine (a)同ドラム式洗濯機の水循環経路の吐出口近傍の断面図(b)同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図(A) Sectional view near the discharge port of the water circulation path of the drum type washing machine (b) Sectional view near the other discharge port of the water circulation path of the drum type washing machine 同ドラム式洗濯機の洗濯水の噴射の状態を示す正面図Front view showing a state of washing water jet of the drum type washing machine (a)本発明の実施の形態2におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図(b)同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図(A) Cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 2 of the present invention (b) Cross-sectional view of the vicinity of the other discharge port of the water circulation path of the drum type washing machine 本発明の実施の形態3におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path | route of the drum type washing machine in Embodiment 3 of this invention 本発明の実施の形態4におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path | route of the drum type washing machine in Embodiment 4 of this invention (a)本発明の実施の形態5におけるドラム式洗濯機の水循環経路の吐出口近傍の拡大断面図(b)同ドラム式洗濯機の水循環経路の他の吐出口近傍の拡大断面図(A) Enlarged sectional view near the discharge port of the water circulation path of the drum type washing machine in Embodiment 5 of the present invention (b) Enlarged sectional view near the other discharge port of the water circulation path of the drum type washing machine 本発明の実施の形態6におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図Sectional drawing of discharge port vicinity of the water circulation path | route of the drum type washing machine in Embodiment 6 of this invention 本発明の実施の形態7におけるドラム式洗濯機の水循環経路の導水路近傍の断面図Sectional drawing of the water circulation path vicinity of the water circulation path of the drum type washing machine in Embodiment 7 of this invention 本発明の実施の形態8におけるドラム式洗濯機の水循環経路の導水路近傍の断面図Sectional drawing of the water circulation path vicinity of the water circulation path of the drum type washing machine in Embodiment 8 of this invention

第1の発明は、洗濯機本体と、正面側に第1の開口を有し有底円筒形に形成され、周壁に多数の孔を有する回転ドラムと、正面側に第2の開口と前端壁とを有して背面側が閉塞された有底円筒形をなし、底部で排水可能に構成され、内部に前記回転ドラムを回転可能に支持して前記洗濯機本体内に設けられる水槽と、前記水槽の前端壁の裏面にカバーを溶
着することにより構成される導水路と、洗濯水を回転ドラム内に噴射する噴射口と、前記水槽の底部から前記導水路と前記噴射口とをつなぐようにして設けられた水循環経路と、前記水循環経路中に設けられ、前記水槽の底部から取り出された洗濯水を前記噴射口から前記回転ドラム内に噴射させる循環ポンプとを具備し、前記導水路は、前記水槽の前端壁および前記カバーの双方により形成され、前記噴射口は、少なくとも前記水槽の前端壁を含んで形成されるように構成されることにより、循環ポンプの吐出側の経路を水槽に一体に構成した接続部までの配管を振動絶縁のためホースで行い、接続部と一体に構成された水槽の内壁と、前記水槽の内壁に取り付けられたカバーにより構成された導水路及び噴射口を通じて噴射を行うため、仮に導水路で洗浄水の漏れがあったとしても、水槽内で完結するため機外への水漏れ等の不安全な状態に陥ることなく、また導水路の断面積をホースに比べ大きく取れるので低損失の水循環経路が実現できることから、循環ポンプからの吐出側経路による循環水の回転ドラム内の衣類への吐出の効率を上げることで洗浄力の高いドラム式洗濯機の実現を信頼性の高い簡易な構成で実現することが可能となる。
The first invention is a washing machine body, a rotating drum having a first opening on the front side and having a bottomed cylindrical shape and having a number of holes in the peripheral wall, and a second opening and a front end wall on the front side. And a water tank that is configured to be drainable at the bottom, and rotatably supports the rotating drum, and is provided in the washing machine body, and the water tank. A water guide path formed by welding a cover to the back surface of the front end wall, an injection port for injecting washing water into the rotating drum, and connecting the water supply path and the injection port from the bottom of the water tank. A water circulation path that is provided, and a circulation pump that is provided in the water circulation path and injects the wash water taken out from the bottom of the water tank into the rotary drum from the injection port, By both the front end wall of the aquarium and the cover The injection port is formed so as to include at least the front end wall of the water tank, thereby vibration-insulating the pipe to the connection part in which the path on the discharge side of the circulation pump is integrated with the water tank. In order to inject through the water channel and the injection port constituted by the inner wall of the water tank constructed integrally with the connection part and the cover attached to the inner wall of the water tank, Even if there is a leak, it is completed in the water tank, so it does not fall into an unsafe state such as water leakage outside the machine, and the cross-sectional area of the conduit is larger than that of the hose, realizing a low-loss water circulation path Therefore, it is possible to realize a drum type washing machine with high cleaning power with a simple and reliable configuration by increasing the efficiency of discharging the circulating water to the clothes in the rotating drum by the discharge side path from the circulation pump. Theft is possible.

第2の発明は、特に、第1の発明において、前記噴射口は複数構成され、前記複数の噴射口により前記回転ドラム内の奥行き方向の異なる位置に洗濯水が噴射されるように構成されるものである。   In a second aspect of the invention, in particular, in the first aspect of the invention, a plurality of the injection ports are configured, and the plurality of injection ports are configured to inject washing water at different positions in the depth direction in the rotating drum. Is.

第3の発明は、特に、第1または第2の発明において、前記噴射口からの噴射は、前記水槽の前端壁の内周位置から行われるように構成されるものである。   In a third aspect of the invention, in particular, in the first or second aspect of the invention, the injection from the injection port is configured to be performed from the inner peripheral position of the front end wall of the water tank.

第4の発明は、特に、第1〜3のいずれか1つの発明において、前記噴射口は、前記水槽の前端壁の傾斜角度の設定により洗濯水が前記回転ドラム内に噴射される位置が変更可能であるものである。   According to a fourth aspect of the present invention, in particular, in any one of the first to third aspects, the position of the spray port is changed in which the wash water is sprayed into the rotating drum by setting the inclination angle of the front end wall of the water tank. It is possible.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(実施の形態1)
図1は、本発明の実施の形態1におけるドラム式洗浄機の概略構造を示す断面図、図2(a)は、同ドラム式洗浄機に用いた循環ポンプの断面図、図2(b)は、同ドラム式洗浄機に用いた循環ポンプの側面図、図3(a)は、同ドラム式洗浄機の水槽の要部斜視図、図3(b)は、同ドラム式洗浄機の水槽の前端壁を内方より見た平面図、図4は、同ドラム式洗浄機の水循環経路の導水路近傍の断面図、図5(a)は、同ドラム式洗浄機の水循環経路の吐出口近傍の断面図、図5(b)は、同ドラム式洗浄機の水循環経路の他の吐出口近傍の断面図、図6は、同ドラム式洗浄機の洗浄水の噴射の状態を示す正面図を示すものである。
(Embodiment 1)
FIG. 1 is a cross-sectional view showing a schematic structure of a drum type cleaning machine in Embodiment 1 of the present invention, FIG. 2 (a) is a cross-sectional view of a circulation pump used in the drum type cleaning machine, and FIG. 2 (b). Fig. 3A is a side view of a circulation pump used in the drum type washing machine, Fig. 3A is a perspective view of a main part of a water tank of the drum type washing machine, and Fig. 3B is a water tank of the drum type washing machine. FIG. 4 is a cross-sectional view of the vicinity of the water conduit of the water circulation path of the drum type washing machine, and FIG. 5A is a discharge port of the water circulation path of the drum type washing machine. FIG. 5B is a sectional view of the vicinity of another outlet of the water circulation path of the drum type washer, and FIG. 6 is a front view showing a state of jetting of the washing water of the drum type washer. Is shown.

本実施の形態1のドラム式洗浄機は、モード設定や制御プログラムに従い、図1に示すモータ6、給水系7、排水系8、乾燥系9を自動制御して少なくとも洗浄工程、すすぎ工程、脱水工程、乾燥工程を行う機能を有したいわゆるドラム式洗浄乾燥機を構成している。しかし、乾燥系9は省略することができる。また、上記に併せ、洗浄準備工程時、洗浄工程時、すすぎ工程時など必要に応じ、水循環経路16にて水槽3内の洗浄水を循環させて洗剤の早期溶け込みや偏りの防止、洗浄やすすぎの機能向上を図る機能も有している。   The drum type cleaning machine of the first embodiment automatically controls at least the cleaning process, the rinsing process, and the dehydration by automatically controlling the motor 6, the water supply system 7, the drainage system 8, and the drying system 9 shown in FIG. 1 according to the mode setting and control program. A so-called drum type washing and drying machine having a function of performing a process and a drying process is configured. However, the drying system 9 can be omitted. In addition to the above, the cleaning water in the water tank 3 is circulated through the water circulation path 16 as necessary at the time of the cleaning preparation process, the cleaning process, the rinsing process, etc. It also has a function to improve the function.

なお、給水系7は電磁弁の開閉によって実線矢印で示すように適時に給水でき、また給水を利用して洗剤収容部の洗剤を水槽3内に適時に投入できるようになっている。排水系8は排水弁19の開閉によって洗浄工程終了時、すすぎ工程終了時など必要なときに一点鎖線矢印で示すように排水できるようになっている。また、水循環経路16は水槽3内の洗濯水を循環ポンプ20により吸い込み水槽3内に戻すことを繰り返す。   Note that the water supply system 7 can supply water in a timely manner as indicated by solid arrows by opening and closing the electromagnetic valve, and the water supply can be used to supply the detergent in the detergent container into the water tank 3 in a timely manner. The drainage system 8 can be drained as indicated by a one-dot chain line arrow when necessary, such as at the end of the washing process or at the end of the rinsing process, by opening and closing the drain valve 19. Further, the water circulation path 16 repeatedly sucks the washing water in the water tank 3 by the circulation pump 20 and returns it to the water tank 3.

運転コース等のモードや各種機能の選択は、洗濯機本体2の前面上部に設けられる操作パネル21から入力して行い、制御系22がその入力情報を基に操作パネル21上の表示手段で表示して使用者に知らせるとともに、操作パネル21での入力設定手段により運転開始が設定されると、水槽3内の水位を検知する水位検知手段等からのデータを入力して駆動を開始して、排水弁、給水弁などの動作を制御し、洗浄、脱水、乾燥などの運転を行う。   The mode such as the driving course and various functions are selected by inputting from the operation panel 21 provided in the upper front portion of the washing machine body 2, and the control system 22 displays on the display means on the operation panel 21 based on the input information. In addition to informing the user, when the start of operation is set by the input setting means on the operation panel 21, data is input from the water level detecting means for detecting the water level in the water tank 3, and driving is started. Controls the operation of the drain valve, water supply valve, etc., and performs operations such as cleaning, dehydration, and drying.

なお、洗濯機本体2の正面側には本体開口2bが設けられ、水槽3の正面側に設けた第2の開口13および回転ドラム4の正面側に設けた第1の開口54を介して回転ドラム4内に洗濯物を出し入れできるように構成している。本体開口2bには、開閉扉5が設けられ、水槽3の第2の開口13をその口縁に装着したシール材14を介し密閉し、また開くことができるようにしている。   A main body opening 2 b is provided on the front side of the washing machine main body 2, and is rotated through a second opening 13 provided on the front side of the water tank 3 and a first opening 54 provided on the front side of the rotary drum 4. The laundry can be taken in and out of the drum 4. The main body opening 2b is provided with an opening / closing door 5, and the second opening 13 of the water tank 3 is sealed and opened via a sealing material 14 attached to the rim of the opening.

なお、回転ドラム4の駆動は、回転ドラム4の90度を超え180度未満の急正弧回転、急逆弧回転を交互に繰り返す正逆弧回転駆動モードと、回転ドラム4の回転によって持ち上げられた洗濯物がその自重が勝る高さから落下する挙動を示す回転速度での前記回転ドラム4の連続回転を正逆交互に繰り返す正逆連続回転駆動モードとを備え、洗浄工程または、洗浄工程およびすすぎ工程において、前記正逆弧回転駆動モードと前記正逆連続回転駆動モードとを、交互に実行するようにしている。これにより、回転ドラム4の90度を超え180度未満の急速度での弧回転および急激な制動により洗濯物を最大限90度を超えて180度未満まで持ち上げられるし、洗濯物の持ち上げの最終段階の急激な制動により制動状態が生じて洗濯物をその慣性および自重により回転ドラム4内面から剥がしてその自重によって持ち上げ側とは左右反対の側に落すことが確実に達成できるので、洗濯水を含んで十分に膨潤し、かつ緩み、滑りやすい状態にある洗濯物に対して特に高い解し作用を与えられるし、機械力を洗濯物に及ぼすことができるので洗浄性能を高めることができる。さらに、弧回転駆動の正方向の急正弧回転と逆方向の急逆弧回転とを交互に繰り返すことで正逆弧回転駆動モードとし、これによって、正逆交互の急弧回転駆動によって洗濯物の持ち上げ位置、落下位置を毎回の弧回転駆動において左右交互に入れ換えられるので、洗濯物が絡むことをより防ぎながら解し作用をさらに高められるとともに、機械力を洗濯物に及ぼす回数を増やすことができるので洗浄性能を高めることができる。また、高い解し作用により、洗浄、すすぎ工程が進行することで生じる洗濯物同士の絡みが抑制できるので、正逆弧回転モードにおける効果的な叩き洗いを持続的に実行して、洗浄効果およびすすぎ効果を高めることができる。   The driving of the rotating drum 4 is lifted by the forward / reverse arc rotation driving mode in which the rotating drum 4 repeats the sudden forward arc rotation and the sudden reverse arc rotation exceeding 90 degrees and less than 180 degrees alternately and the rotation of the rotating drum 4. A forward / reverse continuous rotation drive mode in which continuous rotation of the rotating drum 4 at a rotational speed showing a behavior of falling from a height where the weight of the laundry falls is reversed forward and backward, and a washing step or a washing step; In the rinsing step, the forward / reverse arc rotation drive mode and the forward / reverse continuous rotation drive mode are alternately executed. Accordingly, the laundry is lifted up to more than 90 degrees and less than 180 degrees by the arc rotation and rapid braking of the rotating drum 4 exceeding 90 degrees and less than 180 degrees, and the final lifting of the laundry Since the braking state occurs due to the sudden braking of the stage, the laundry can be reliably peeled off from the inner surface of the rotating drum 4 by its inertia and its own weight and dropped to the side opposite to the lifting side by its own weight. In particular, the laundry is sufficiently swollen and loosened, and can be given a particularly high unraveling action to the laundry in a slippery state, and the mechanical performance can be exerted on the laundry, so that the washing performance can be enhanced. Furthermore, the forward / reverse arc rotation drive mode is established by alternately repeating the forward / reverse rapid arc rotation in the forward direction and the reverse rotation in the reverse direction. The lifting position and falling position can be switched alternately left and right in each arc rotation drive, so that it is possible to further improve the solving action while preventing the laundry from becoming tangled, and to increase the number of times the mechanical force is applied to the laundry As a result, the cleaning performance can be improved. In addition, since the entanglement between the laundry caused by the progress of the washing and rinsing process can be suppressed due to the high unraveling action, effective tapping washing in the forward and reverse arc rotation mode is continuously executed, and the washing effect and The rinsing effect can be enhanced.

また、正逆弧回転駆動モードのみでは、洗濯物の絡み、捩れ、皺より等が軽減される一方で、洗濯物の上下方向の位置が入れ替わりにくく、回転ドラム4底部の洗濯物は動きにくいため、洗いむらが生じやすいが、正逆連続回転駆動モードを併用することによって、洗濯物の上下方向の位置の入れ替わりを実現することができ、すなわち、正逆連続回転駆動モードにおける洗濯物の絡み、捩れ、皺よりを軽減するとともに、正逆弧回転駆動モードにおける洗濯物に対する機械力付与の不均衡を軽減することで、両モードによって洗浄やすすぎ中の洗濯物に異なった2通りの挙動、具体的には正逆弧回転駆動モードによっては洗濯物の絡み、捩れ、皺よりを軽減しつつしっかりした手もみ洗いの挙動を、正逆連続回転駆動モードによっては洗濯物を大きく連続に動かしむらを軽減しながら洗う、均一で強い汚れに対する効果的な洗い挙動を与えられる。   Further, in the forward / reverse arc rotation drive mode alone, the tangling, twisting, wrinkles, etc. of the laundry are reduced, but the vertical position of the laundry is difficult to change, and the laundry at the bottom of the rotating drum 4 is difficult to move. In addition, washing unevenness is likely to occur, but by using the forward / reverse continuous rotation drive mode together, it is possible to realize a change in the position of the laundry in the vertical direction, that is, the entanglement of the laundry in the forward / reverse continuous rotation drive mode, In addition to reducing twisting and wrinkling, and reducing the imbalance in applying mechanical force to the laundry in the forward and reverse arc rotation drive mode, the two different behaviors of washing and rinsing laundry in both modes, Depending on the forward / reverse arc rotation drive mode, the hand-washing behavior can be improved while reducing tangling, twisting, and wrinkling of the laundry. The large wash while reducing unevenness move continuously, given an effective washing behavior for uniform and strong stain.

循環ポンプ20は、台板2aに固定し、水循環経路16の循環ポンプ20からの吐出側経路16bは、水槽3の開口13が位置する洗濯機本体2の前方に向けて延びたものとしている。具体的には、循環ポンプ20は、図2に示すようにインペラ20aを収容した樹脂製のポンプケーシング20bがその開口側で、循環モータ20cのモータケーシング2
0dの前端にある軸受隔壁20d1に当てがって一体化し、インペラ20aをモータ軸20eに直結したものとしてあり、これを樹脂製の取り付け座35に嵌め付けてある。
The circulation pump 20 is fixed to the base plate 2a, and the discharge side path 16b from the circulation pump 20 of the water circulation path 16 extends toward the front of the washing machine body 2 where the opening 13 of the water tank 3 is located. Specifically, as shown in FIG. 2, the circulation pump 20 has a resin pump casing 20b containing an impeller 20a on its opening side, and the motor casing 2 of the circulation motor 20c.
The impeller 20a is integrated with the bearing partition 20d1 at the front end of 0d, and the impeller 20a is directly connected to the motor shaft 20e. The impeller 20a is fitted on a resin mounting seat 35.

水槽3の前端壁3hの下半分の部分には、略Y字状に周方向に形成され前方に膨出した膨出部3aが形成され、膨出部3aと外形が略同一形状のカバー55が、内方より、パッキン55aを間に挟んで、ネジの締結などにより取り付けられることで、導水路55bを形成している。   In the lower half of the front end wall 3h of the water tank 3, a bulging portion 3a formed in a circumferential direction in a substantially Y shape and bulging forward is formed, and a cover 55 having substantially the same shape as the bulging portion 3a. However, the water guide channel 55b is formed by being attached by fastening screws or the like with the packing 55a interposed therebetween from the inside.

膨出部3aの下端部には、横方向に延びた連結部51の一端が接続され、連結部51の他端は、水循環経路16の吐出側経路16bが接続されている。カバー55は、前記循環ポンプ20からの配管の導水路55bへの連結部51の接続空間51aのカバーを兼ねていて、この構成により設計的な要因や金型構造上の要因から、循環ポンプ20からの配管の導水路55bへの連結部51の位置や構造の制約を、カバー55で連結部51の接続空間51aの蓋を兼ねることで容易に解決することが可能となる。   One end of a connecting portion 51 extending in the lateral direction is connected to the lower end portion of the bulging portion 3a, and the discharge side passage 16b of the water circulation passage 16 is connected to the other end of the connecting portion 51. The cover 55 also serves as a cover for the connection space 51a of the connecting portion 51 to the water conduit 55b of the pipe from the circulation pump 20, and due to this configuration, the circulation pump 20 has a design factor and a mold structure factor. It is possible to easily solve the restriction of the position and structure of the connecting portion 51 from the pipe to the water conduit 55b by using the cover 55 as a lid of the connection space 51a of the connecting portion 51.

また、略Y字状に形成されたカバー55のそれぞれの上端部分は、パッキン55aを含めたシール構成の無い切欠き部55cが形成され、それによって、膨出部3aとカバー55とで略Y字状に分岐して形成された導水路55bのそれぞれの上端部分には、切欠き部55cとこれに対応する水槽3の前端壁3hの裏面との間で周方向域に広がった開口を有する吐出口55dが形成されている。   Further, each upper end portion of the cover 55 formed in a substantially Y-shape is formed with a notch portion 55c having no sealing structure including the packing 55a, so that the bulging portion 3a and the cover 55 are approximately Y. Each of the upper ends of the water conduits 55 b formed by branching in a letter shape has an opening extending in the circumferential direction region between the notch 55 c and the back surface of the front end wall 3 h of the water tank 3 corresponding thereto. A discharge port 55d is formed.

循環ポンプ20により加圧された洗濯水は、水循環経路16の吐出側経路16bを介して連結部51より導水路55bに流入し、吐出口55dより水槽3の前端壁3hの裏面とこれに対応する回転ドラム4の前端壁4bの表面との間に洗濯水を噴射し、それらの間で形成する流路52を通じて回転ドラム4内に吐出するようにしてある。吐出口55dは、水槽3の前端壁3hの裏面において図5(a)に示すように回転ドラム4の回転中心方向、具体的には、水槽3の前端壁3hおよび回転ドラム4の前端壁4b間の流路52における環状の噴射口53に向かって開口しているので、吐出口55dから噴射する洗濯水は流路52を回転ドラム4の回転中心側、具体的には噴射口53に向かって径方向に回転ドラム4の内側回転域に効率よく吐出させられ、洗濯物の多少にかかわらず洗濯水を効率よく供与できる。   Washing water pressurized by the circulation pump 20 flows into the water conduit 55b from the connecting part 51 via the discharge side path 16b of the water circulation path 16, and corresponds to the back surface of the front end wall 3h of the water tank 3 from the discharge port 55d. Washing water is sprayed between the rotating drum 4 and the front end wall 4b of the rotating drum 4 and discharged into the rotating drum 4 through a flow path 52 formed therebetween. As shown in FIG. 5A, the discharge port 55 d is formed on the back surface of the front end wall 3 h of the water tank 3, specifically, the rotation center direction of the rotary drum 4, specifically, the front end wall 3 h of the water tank 3 and the front end wall 4 b of the rotary drum 4. Since the opening is directed toward the annular injection port 53 in the channel 52 between them, the washing water sprayed from the discharge port 55d is directed to the rotation center side of the rotary drum 4, specifically to the injection port 53. Thus, the water can be efficiently discharged in the radial direction to the inner rotation area of the rotary drum 4, and the washing water can be efficiently supplied regardless of the amount of the laundry.

特に、水槽3の前端壁3hは吐出口55dに対応する位置から内周近くに向かって洗濯機本体2の後部側に傾斜した傾斜面3h1およびこの傾斜面3h1から内周まで、回転ドラム4の開口54側に向け傾斜した案内面56を有していることにより、流路52に噴射される洗濯水を図5(a)に示すように、傾斜面3h1から案内面56に沿わせて、噴射口53から回転ドラム4の開口54を通じ回転ドラム4の奥側に向け吐出させられるので、洗濯水の洗濯物への供与効率を高められる。   In particular, the front end wall 3h of the water tank 3 has an inclined surface 3h1 inclined toward the rear side of the washing machine body 2 from a position corresponding to the discharge port 55d toward the inner periphery, and the rotating drum 4 from the inclined surface 3h1 to the inner periphery. By having the guide surface 56 inclined toward the opening 54 side, as shown in FIG. 5A, the washing water sprayed to the flow path 52 is made to extend along the guide surface 56 from the inclined surface 3h1. Since it is discharged toward the back side of the rotating drum 4 through the opening 54 of the rotating drum 4 from the injection port 53, the supply efficiency of the washing water to the laundry can be improved.

ここで、図5(a)、(b)に示すように、複数の吐出口55dに対し、それぞれ傾斜角度の異なる案内面56、57を設ける構成としている。例えば、図5(a)に示すように、分岐した導水路55bの正面から見て左側の吐出口55d(図3(b)における右側)に対応する案内面56の傾斜角度をαとし、また、図5(b)に示すように、導水路55bの正面から見て右側の吐出口55d(図3(b)における左側)に対応する案内面57の傾斜角度をβとして、α>βとすることで、図6に示すように、正面から見て左側の噴射口53からの洗濯水(図5(a)に示す矢印a)は、シャワー形状Aのように比較的上方向に噴射し、一方、正面から見て右側の噴射口53からの洗濯水(図5(b)に示す矢印b)は、シャワー形状Bのように、シャワー形状Aよりも下方向に向けて噴射することとなる。すなわち、それぞれの吐出口55dから噴射された洗濯水は、傾斜角度の異なる案内面56、57に沿って流れ、噴射口53から第1の開口54を介して回転ドラム4
内に噴射されるため、回転ドラム4の回転軸に対する噴射角度の異なる噴射を実現できる。
Here, as shown in FIGS. 5A and 5B, the guide surfaces 56 and 57 having different inclination angles are provided for the plurality of discharge ports 55d, respectively. For example, as shown in FIG. 5A, the inclination angle of the guide surface 56 corresponding to the left outlet 55d (right side in FIG. 3B) when viewed from the front of the branched water conduit 55b is α, As shown in FIG. 5 (b), when the inclination angle of the guide surface 57 corresponding to the right discharge port 55d (left side in FIG. 3 (b)) when viewed from the front of the water conduit 55b is β, α> β Thus, as shown in FIG. 6, the washing water from the left-side injection port 53 as viewed from the front (arrow a shown in FIG. 5A) is injected relatively upward like the shower shape A. On the other hand, the washing water (arrow b shown in FIG. 5 (b)) from the right injection port 53 as viewed from the front is jetted downward from the shower shape A like the shower shape B. Become. In other words, the washing water ejected from the respective discharge ports 55d flows along the guide surfaces 56 and 57 having different inclination angles, and the rotary drum 4 from the ejection port 53 through the first opening 54.
Therefore, it is possible to realize injection with different injection angles with respect to the rotation axis of the rotary drum 4.

また、傾斜角度は、噴射の拡がりにも影響する。傾斜角度が小さい場合、傾斜面3h1から案内面57に角度が変化する近傍で、傾斜面3h1に沿って流れてきた洗濯水が案内面57で急激に角度が変わるため、案内面57に衝突する状態となる。この状態では、案内面57に沿う流れとともに、周方向への拡がりが発生し、拡がりを有した噴射となる。すなわち、図6に示すように、傾斜角度がαである左側の噴射口53から噴射する洗濯水のシャワー形状Aに対し、傾斜角度がβ(上記のように、α>βの関係を有する)である右側の噴射口53から噴射する洗濯水のシャワー形状Bの方が、拡がりを有した噴射となっている。発明者らの試験結果では、傾斜角が120度付近までは、大きく拡がり拡散した噴射となり、130度以上では、拡がりの小さい膜状の噴射となった。   The tilt angle also affects the spread of the injection. When the angle of inclination is small, the wash water flowing along the inclined surface 3h1 changes abruptly at the guide surface 57 in the vicinity where the angle changes from the inclined surface 3h1 to the guide surface 57, and thus collides with the guide surface 57. It becomes a state. In this state, along with the flow along the guide surface 57, the expansion in the circumferential direction occurs, and the injection has the expansion. That is, as shown in FIG. 6, with respect to the shower shape A of the washing water sprayed from the left jet port 53 whose tilt angle is α, the tilt angle is β (having a relationship of α> β as described above). The shower shape B of the washing water sprayed from the right spray port 53 is a spray having a spread. According to the test results of the inventors, the spray was greatly spread and diffused up to an inclination angle of about 120 degrees, and the film-like jet with a small spread was obtained at 130 degrees or more.

上記の構成により、噴射口53からの洗濯水の回転ドラム4の回転軸に対する噴射角度を異ならせるとともに、異なる拡がりとすることで、低容量や高容量の洗濯物のそれぞれに対応した最適な噴射角度を設けることが可能となる。   With the above configuration, the spray angle from the spray port 53 with respect to the rotation axis of the rotating drum 4 of the washing water is made different, and by making the spread different, the optimum spray corresponding to each of the low-capacity and high-capacity laundry An angle can be provided.

例えば、洗浄開始時の洗濯物が洗浄液を含んでいない状態でかさばっている際に、図6に示す左側の噴射口53近傍が洗濯物によって周方向に塞がれた場合でも、右側の噴射口53から回転ドラム4の第1の開口54付近に向けて大きな拡がりを有する噴射を行い、噴射口53近傍の洗濯物を早期に濡らし体積を減らすことで、洗濯物による左側の噴射口53近傍の塞ぎを解消することができる。   For example, when the laundry at the start of washing is bulky without containing the cleaning liquid, even if the vicinity of the left injection port 53 shown in FIG. 6 is closed in the circumferential direction by the laundry, the right injection port By performing spraying having a large spread from 53 to the vicinity of the first opening 54 of the rotary drum 4, the laundry in the vicinity of the spraying port 53 is wetted early, and the volume is reduced. The blockage can be eliminated.

また、図6に示す左側の噴射口53からは回転ドラム4の中心軸方向に向かって拡がりが小さく回転ドラム4の奥方向に向けた噴射を行うことで、右側の噴射口53からの大きな拡がりを有する噴射では濡れにくい回転ドラム4の中心付近から奥部分の洗濯物も早期に濡らし、洗濯水の効果を高めるとともに、中心付近から奥部分の洗濯物の体積を洗濯水を染み込ませることで減らし、回転ドラム4内で洗濯物が早期に動きやすくなるので、叩き洗いの効果も向上するとともに、洗濯物の体積が減ることによりできた隙間から洗濯物全体への噴射が可能となり相乗的に洗浄効果を高めることが可能となる。   Further, from the left injection port 53 shown in FIG. 6, the expansion is small toward the center axis direction of the rotating drum 4, and the injection toward the back direction of the rotating drum 4 is performed, so that the large expansion from the right injection port 53 is performed. The wet part of the laundry from the center of the rotating drum 4 that is difficult to get wet by the jet having a wetness is also wetted at an early stage to increase the effect of the washing water, and the volume of the laundry at the back part is reduced by soaking the washing water from the vicinity of the center. Since the laundry easily moves in the rotating drum 4 at an early stage, the effect of tapping is improved, and the laundry can be sprayed from the gap formed by reducing the volume of the laundry to synergistically wash. The effect can be increased.

以上の効果により、回転ドラム4内の洗濯物にその多少にかかわらず洗浄液を有効に働かせさられ、また吐出口55dが回転ドラム4内の洗濯物と接触しない位置にあるので、洗濯物が引っ掛かって洗い、すすぎ、乾燥などに必要な挙動を乱したり、あるいは洗濯物を傷めたり、破れたりするようなことを防止することができるし、見栄えのよい外観が損なわれない。洗濯水の噴射効果は、正逆連続回転駆動モードで上下が入れ替わる洗濯物の挙動、正逆弧回転駆動モード時の左右が入れ替わる洗濯物の挙動との組合せでより高められる。   Due to the above-described effects, the washing liquid is effectively applied to the laundry in the rotating drum 4 regardless of the amount thereof, and the laundry is caught because the discharge port 55d is not in contact with the laundry in the rotating drum 4. Therefore, it is possible to prevent the behavior necessary for washing, rinsing, drying, etc. from being disturbed, and to prevent the laundry from being damaged or torn, and the appearance is not impaired. The washing water injection effect is further enhanced by a combination of the behavior of the laundry that is switched up and down in the forward / reverse continuous rotation drive mode and the behavior of the laundry that is switched between the left and right in the forward / reverse arc rotation drive mode.

なお、本実施の形態1では、吐出口55dは左右の2箇所としたが、3箇所以上としても、同等の効果を有することは言うまでも無い。   In the first embodiment, the discharge ports 55d are provided at two places on the left and right, but it goes without saying that the same effect can be obtained even when there are three or more places.

(実施の形態2)
図7(a)は、本発明の実施の形態2におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図、図7(b)は、同ドラム式洗濯機の水循環経路の他の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 2)
7A is a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 2 of the present invention, and FIG. 7B is another discharge port of the water circulation path of the drum type washing machine. The cross-sectional view of the vicinity is shown. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図7(a)、(b)に示すように、案内面58、59は湾曲形状とし、左右の吐出口55dに対し、それぞれ湾曲半径の異なる案内面58、59としている。例えば、図7(a
)に示すように、分岐した導水路55bの正面から見て左側の吐出口55d(図3(b)における右側)に対応する案内面58の湾曲半径をγとし、また、図7(b)に示すように、導水路55bの正面から見て右側の吐出口55d(図3(b)における左側)に対応する案内面59の湾曲半径をδとして、γ>δとすることで、図6に示すように、正面から見て左側の噴射口53からの洗濯水(図7(a)に示す矢印c)は、シャワー形状Aのように比較的上方向に噴射し、一方、正面から見て右側の噴射口53からの洗濯水(図7(b)に示す矢印d)は、シャワー形状Bのように、シャワー形状Aよりも下方向に向けて噴射することとなる。すなわち、それぞれの吐出口55dから噴射された洗濯水は、湾曲半径の異なる案内面58、59に沿って流れ、噴射口53から第1の開口54を介して回転ドラム4内に噴射されるため、回転ドラム4の回転軸に対する噴射角度の異なる噴射を実現できる。
As shown in FIGS. 7A and 7B, the guide surfaces 58 and 59 are curved, and the guide surfaces 58 and 59 have different curvature radii with respect to the left and right discharge ports 55d, respectively. For example, FIG.
), The curvature radius of the guide surface 58 corresponding to the discharge port 55d on the left side (right side in FIG. 3B) when viewed from the front of the branched water conduit 55b is γ, and FIG. As shown in FIG. 6, the curvature radius of the guide surface 59 corresponding to the right discharge port 55d (left side in FIG. 3B) as viewed from the front of the water conduit 55b is δ, and γ> δ, so that FIG. As shown in FIG. 7, the washing water (arrow c shown in FIG. 7A) from the left injection port 53 as viewed from the front is sprayed relatively upward as in the shower shape A, while viewed from the front. Then, the washing water from the right injection port 53 (arrow d shown in FIG. 7B) is injected downward from the shower shape A like the shower shape B. That is, the wash water sprayed from the respective discharge ports 55d flows along the guide surfaces 58 and 59 having different curvature radii, and is sprayed from the spray port 53 into the rotary drum 4 through the first opening 54. Thus, it is possible to realize injection with different injection angles with respect to the rotation axis of the rotary drum 4.

また、湾曲半径は、噴射の拡がりにも影響する。湾曲半径が小さい場合、傾斜面3h1から案内面59に変化する近傍で、傾斜面3h1に沿って流れてきた洗濯水が案内面59の湾曲で急激に角度が変わるため、案内面59に衝突する状態となる。この状態では、案内面59に沿う流れとともに、周方向への拡がりが発生し、拡がりを有した噴射となる。すなわち、図6に示すように、湾曲半径がγである左側の噴射口53から噴射する洗濯水のシャワー形状Aに対し、傾斜角度がδ(上記のように、γ>δの関係を有する)である右側の噴射口53から噴射する洗濯水のシャワー形状Bの方が、拡がりを有した噴射となっている。   The radius of curvature also affects the spread of injection. When the radius of curvature is small, the washing water flowing along the inclined surface 3h1 suddenly changes its angle due to the curvature of the guide surface 59 in the vicinity of the change from the inclined surface 3h1 to the guide surface 59, so that it collides with the guide surface 59. It becomes a state. In this state, along with the flow along the guide surface 59, the circumferential expansion occurs, resulting in an injection having an expansion. That is, as shown in FIG. 6, the inclination angle is δ (having a relationship of γ> δ as described above) with respect to the shower shape A of the washing water sprayed from the left jet port 53 whose curvature radius is γ. The shower shape B of the washing water sprayed from the right spray port 53 is a spray having a spread.

すなわち、本実施の形態2においても、上記実施の形態1と同等の作用効果を有することができる。   In other words, the second embodiment can have the same effects as those of the first embodiment.

(実施の形態3)
図8は、本発明の実施の形態3におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 3)
FIG. 8 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 3 of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図8に示すように、傾斜面3h1と傾斜角度の異なる案内面61とを湾曲面60で接続するように構成している。これにより、吐出口55dから吐出した洗濯水は、傾斜面3h1から湾曲面60を介して傾斜角度の異なる案内面61へスムーズに流れるため、噴射口53からの噴射が、より安定した噴射となることを実現することができる。   As shown in FIG. 8, the inclined surface 3 h 1 and the guide surface 61 having different inclination angles are connected by a curved surface 60. Thereby, since the wash water discharged from the discharge port 55d smoothly flows from the inclined surface 3h1 to the guide surface 61 having a different inclination angle through the curved surface 60, the injection from the injection port 53 becomes a more stable injection. Can be realized.

また、噴射の回転ドラム4の回転軸に対する噴射角度は案内面61の傾斜角度で決め、湾曲面60の湾曲半径で噴射の拡がり角度が決めることが個別にできるようになり、噴射の拡がり角度を広げながら噴射角度を立てたり、噴射の拡がり角度を抑えながら噴射角度を寝かすことが可能となり、湾曲面60と案内面61の形状を二種類以上にすることで、それぞれの噴射口からの洗濯水の噴射の回転ドラムの回転軸に対する噴射角度や、噴射の拡がり角度が異なる噴射が実現可能となる。   Further, the injection angle of the injection with respect to the rotation axis of the rotary drum 4 is determined by the inclination angle of the guide surface 61, and the injection expansion angle can be determined individually by the bending radius of the curved surface 60, and the injection expansion angle can be determined. It is possible to raise the injection angle while expanding, or to lay down the injection angle while suppressing the expansion angle of the injection. By making the curved surface 60 and the guide surface 61 into two or more shapes, the washing water from each injection port Thus, it is possible to realize injections with different injection angles with respect to the rotation axis of the rotary drum and different injection spread angles.

(実施の形態4)
図9は、本発明の実施の形態4におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 4)
FIG. 9 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in the fourth embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図9に示すように、本実施の形態4では、案内面を複数の傾斜角度を持つ面で構成している。   As shown in FIG. 9, in the fourth embodiment, the guide surface is configured by surfaces having a plurality of inclination angles.

図9において、傾斜面3h1から湾曲面60を介して案内面62に変化する近傍では傾
斜角εを小さくとり、傾斜面3h1に沿って流れてきた洗濯水を案内面62で急激に角度を変え、案内面62に衝突させ洗濯水の流れを拡げ、傾斜角εに比べ大きい傾斜角ζの案内面63で回転ドラム4の回転軸に対する噴射角度が大きい噴射を実現する。傾斜角εと傾斜角ζの差が大きく、洗濯水の流れが案内面63に対し剥離が生じ噴射が不安定な場合は、さらに中間の傾斜角を有した面を間に追加してもよい。これらの形状は、案内面62、63近傍の偏肉を抑えることもできる。回転ドラム4の回転軸に対する噴射角度が大きく且つ拡がりを持った噴射を実現する際などに、案内面を複数の傾斜角度を持つ面で構成してもよい。
In FIG. 9, the inclination angle ε is reduced in the vicinity of the change from the inclined surface 3 h 1 to the guide surface 62 through the curved surface 60, and the angle of washing water flowing along the inclined surface 3 h 1 is changed abruptly at the guide surface 62. Then, the flow of the washing water is made to collide with the guide surface 62, and injection with a large injection angle with respect to the rotation axis of the rotary drum 4 is realized by the guide surface 63 having an inclination angle ζ larger than the inclination angle ε. When the difference between the inclination angle ε and the inclination angle ζ is large and the flow of the washing water is separated from the guide surface 63 and the injection is unstable, a surface having an intermediate inclination angle may be added between them. . These shapes can also suppress uneven thickness in the vicinity of the guide surfaces 62 and 63. The guide surface may be constituted by a surface having a plurality of inclination angles when the injection angle with respect to the rotation axis of the rotating drum 4 is large and the injection is widened.

(実施の形態5)
図10(a)は、本発明の実施の形態5におけるドラム式洗濯機の水循環経路の吐出口近傍の拡大断面図、図10(b)は、同ドラム式洗濯機の水循環経路の他の吐出口近傍の拡大断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 5)
FIG. 10 (a) is an enlarged cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in Embodiment 5 of the present invention, and FIG. 10 (b) is another discharge of the water circulation path of the drum type washing machine. The expanded sectional view of the exit vicinity is shown. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図10(a)に示すように、洗濯水の回転ドラム4の回転軸に対する噴射角度は、開口54近傍の案内面56の、延長線上あるいは接線方向で決まることから、前端壁3hの裏面の端部は所定角の面取り形状65にすることで噴射角度を変えてもよく、また面取り形状65により洗濯物を傷めたり、破れたりするようなことを防止する効果も得られる。同様に図9(b)に示すように面取り形状65を丸み形状66としてもよい。   As shown in FIG. 10 (a), the spray angle with respect to the rotation axis of the rotating drum 4 of the washing water is determined by the extension line or the tangential direction of the guide surface 56 in the vicinity of the opening 54. The portion may have a chamfered shape 65 with a predetermined angle to change the spray angle, and the chamfered shape 65 can also prevent the laundry from being damaged or torn. Similarly, the chamfered shape 65 may be a rounded shape 66 as shown in FIG.

(実施の形態6)
図11は、本発明の実施の形態6におけるドラム式洗濯機の水循環経路の吐出口近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 6)
FIG. 11 shows a cross-sectional view of the vicinity of the discharge port of the water circulation path of the drum type washing machine in the sixth embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

図11に示すように、噴射の拡がり、噴射角度、噴射の安定性、洗濯物の傷み、破れ、偏肉を考慮した、複数の傾斜角を持つ傾斜面64、64aや湾曲面60、60a、60b、60c、端部などを徐変し構成している。   As shown in FIG. 11, the inclined surfaces 64 and 64a and the curved surfaces 60 and 60a having a plurality of inclination angles in consideration of the spread of the injection, the injection angle, the stability of the injection, the damage, tearing, and uneven thickness of the laundry. 60b, 60c, end portions and the like are gradually changed.

(実施の形態7)
図12は、本発明の実施の形態7におけるドラム式洗濯機の水循環経路の導水路近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 7)
FIG. 12 shows a cross-sectional view of the vicinity of the water conduit of the water circulation path of the drum type washing machine in the seventh embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

本発明の実施の形態7においては、図12に示すように、導水路55eは、カバー55に、回転ドラム4側に突出した膨出部55fを設けており、この膨出部55fにより導水路55eの断面積を、実施の形態1に示した導水路55bの断面積より大きくとることができる。また、導水路55eの断面積を導水路55bと同一とした場合、水槽3の前方への膨出を抑えることが可能となり、よりコンパクトで低圧損の水循環経路16を実現することが可能となる。   In Embodiment 7 of the present invention, as shown in FIG. 12, the water guide channel 55e is provided with a bulging portion 55f projecting toward the rotating drum 4 on the cover 55, and the swelled portion 55f provides a water guide channel. The cross-sectional area of 55e can be made larger than the cross-sectional area of the water conduit 55b shown in the first embodiment. Further, when the cross-sectional area of the water conduit 55e is the same as that of the water conduit 55b, it is possible to suppress the bulging of the water tank 3 to the front, and it is possible to realize a more compact and low-pressure loss water circulation path 16. .

(実施の形態8)
図13は、本発明の実施の形態8におけるドラム式洗濯機の水循環経路の導水路近傍の断面図を示すものである。実施の形態1と同一構成については、同一符号を付し、その説明を省略する。
(Embodiment 8)
FIG. 13 shows a cross-sectional view of the vicinity of the water conduit of the water circulation path of the drum type washing machine in the eighth embodiment of the present invention. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

本発明の実施の形態8においては、図13に示すように、カバー55と水槽3の内壁の間を振動溶着あるいは超音波溶着などによる溶着部55gを介して導水路55hを構成している。この構成によれば、シール部材やネジなどの固定を廃止した簡易な構成で循環ポ
ンプで加圧された洗浄水を漏れなく効率的に噴射可能となり、高効率の洗浄を低コストで行うことが可能となる。
In the eighth embodiment of the present invention, as shown in FIG. 13, a water conduit 55h is formed between the cover 55 and the inner wall of the water tank 3 via a welded portion 55g by vibration welding or ultrasonic welding. According to this configuration, it is possible to efficiently inject the cleaning water pressurized by the circulation pump without leakage with a simple configuration in which the fixing of the seal member or the screw is abolished, and highly efficient cleaning can be performed at low cost. It becomes possible.

本発明にかかるドラム式洗濯機は、循環ポンプからの吐出側経路による循環水の回転ドラム内の衣類への吐出の効率を上げることで洗浄力の高いドラム式洗濯機の実現を信頼性の高い簡易な構成で実現することが可能となるので、有底円筒形に形成された回転ドラムを、開口する正面側から底部となる背面側に向けて回転軸方向が水平または水平方向から下向き傾斜となるようにして水槽内に設置し、回転ドラムを回転駆動することにより回転ドラム内に収容した洗濯物を洗濯するドラム式洗濯機等として有用である。   The drum type washing machine according to the present invention is highly reliable in realizing a drum type washing machine with high cleaning power by increasing the efficiency of discharging the circulating water to the clothes in the rotating drum by the discharge side path from the circulation pump. Since it can be realized with a simple configuration, the rotation drum direction of the rotating drum formed in the bottomed cylindrical shape is horizontal or inclined downward from the horizontal direction from the opening front side toward the bottom back side. In this way, it is installed in a water tank and is useful as a drum-type washing machine or the like for washing laundry stored in a rotating drum by rotationally driving the rotating drum.

3 水槽
16 水循環経路
20 循環ポンプ
51 連結部
55 カバー
55b 導水路
3 Water tank 16 Water circulation path 20 Circulation pump 51 Connection part 55 Cover 55b Water conduit

Claims (4)

洗濯機本体と、正面側に第1の開口を有し有底円筒形に形成され、周壁に多数の孔を有する回転ドラムと、正面側に第2の開口と前端壁とを有して背面側が閉塞された有底円筒形をなし、底部で排水可能に構成され、内部に前記回転ドラムを回転可能に支持して前記洗濯機本体内に設けられる水槽と、前記水槽の前端壁の裏面にカバーを溶着することにより構成される導水路と、洗濯水を回転ドラム内に噴射する噴射口と、前記水槽の底部から前記導水路と前記噴射口とをつなぐようにして設けられた水循環経路と、前記水循環経路中に設けられ、前記水槽の底部から取り出された洗濯水を前記噴射口から前記回転ドラム内に噴射させる循環ポンプとを具備し、前記導水路は、前記水槽の前端壁および前記カバーの双方により形成され、前記噴射口は、少なくとも前記水槽の前端壁を含んで形成されるように構成されることを特徴とするドラム式洗濯機。 A washing machine body, a rotating drum having a bottomed cylindrical shape having a first opening on the front side and having a number of holes in the peripheral wall, and a second opening and a front end wall on the front side. A bottomed cylindrical shape with a closed side, configured to be drainable at the bottom, and provided in the washing machine body with the rotating drum rotatably supported therein, on the back surface of the front end wall of the water tub A water conduit formed by welding a cover, an injection port for injecting washing water into the rotating drum, and a water circulation path provided so as to connect the water guide channel and the injection port from the bottom of the water tank; A circulation pump that is provided in the water circulation path and injects the wash water taken out from the bottom of the water tank into the rotary drum from the injection port, and the water conduit includes the front end wall of the water tank and the water Formed by both covers, said Iguchi is a drum type washing machine, characterized in that it is configured to be formed to include a front end wall of at least the water tub. 前記噴射口は複数構成され、前記複数の噴射口により前記回転ドラム内の奥行き方向の異なる位置に洗濯水が噴射されるように構成されることを特徴とする請求項1に記載のドラム式洗濯機。 2. The drum type laundry according to claim 1, wherein a plurality of the spray ports are configured, and the plurality of spray ports are configured to spray wash water at different positions in the depth direction in the rotating drum. Machine. 前記噴射口からの噴射は、前記水槽の前端壁の内周位置から行われるように構成されることを特徴とする請求項1または2に記載のドラム式洗濯機。 The drum-type washing machine according to claim 1 or 2, wherein the spray from the spray port is configured to be performed from an inner peripheral position of a front end wall of the water tank. 前記噴射口は、前記水槽の前端壁の傾斜角度の設定により洗濯水が前記回転ドラム内に噴射される位置が変更可能であることを特徴とする請求項1〜3のいずれか1項にドラム式洗濯機。 The drum according to any one of claims 1 to 3, wherein the position of the spray port in which the washing water is sprayed into the rotary drum can be changed by setting an inclination angle of a front end wall of the water tank. Type washing machine.
JP2014145532A 2014-07-16 2014-07-16 Drum type washing machine Pending JP2014195741A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015029335A (en) * 2009-08-13 2015-02-12 サムスン エレクトロニクス カンパニー リミテッド Image decoding method

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH0924189A (en) * 1995-07-11 1997-01-28 Matsushita Electric Ind Co Ltd Washing and dehydrating machine
JPH09135991A (en) * 1995-11-14 1997-05-27 Toshiba Corp Forming method of waste water duct of washing machine
JP2005137945A (en) * 2005-02-28 2005-06-02 Toshiba Corp Washing machine
JP2007014678A (en) * 2005-07-11 2007-01-25 Matsushita Electric Ind Co Ltd Drum type washing machine
JP4325734B1 (en) * 2008-09-29 2009-09-02 パナソニック株式会社 Drum washing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0924189A (en) * 1995-07-11 1997-01-28 Matsushita Electric Ind Co Ltd Washing and dehydrating machine
JPH09135991A (en) * 1995-11-14 1997-05-27 Toshiba Corp Forming method of waste water duct of washing machine
JP2005137945A (en) * 2005-02-28 2005-06-02 Toshiba Corp Washing machine
JP2007014678A (en) * 2005-07-11 2007-01-25 Matsushita Electric Ind Co Ltd Drum type washing machine
JP4325734B1 (en) * 2008-09-29 2009-09-02 パナソニック株式会社 Drum washing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015029335A (en) * 2009-08-13 2015-02-12 サムスン エレクトロニクス カンパニー リミテッド Image decoding method

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