JP2011055923A - Drum type washing machine - Google Patents
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- JP2011055923A JP2011055923A JP2009206632A JP2009206632A JP2011055923A JP 2011055923 A JP2011055923 A JP 2011055923A JP 2009206632 A JP2009206632 A JP 2009206632A JP 2009206632 A JP2009206632 A JP 2009206632A JP 2011055923 A JP2011055923 A JP 2011055923A
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- 238000005406 washing Methods 0.000 title claims abstract description 166
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 316
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000002347 injection Methods 0.000 claims description 113
- 239000007924 injection Substances 0.000 claims description 113
- 238000000034 method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 35
- 230000001965 increasing effect Effects 0.000 abstract description 15
- 230000035699 permeability Effects 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 description 18
- 239000007921 spray Substances 0.000 description 16
- 230000006399 behavior Effects 0.000 description 13
- 238000005507 spraying Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 230000007480 spreading Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Detail Structures Of Washing Machines And Dryers (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
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.
しかし、特許文献１に開示の水循環技術は、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棒状のシャワーを噴射するため、各々のシャワーは局所的になり、それをカバーするために角度の異なる複数の噴射口としているが、節水の流れがある昨今のドラム式洗濯機では、少ない水量で循環を行う必要があり、噴射口の数でカバーするには限界がある。 However, since the water circulation technique disclosed in Patent Document 1 sprays a bar-shaped shower from a plurality of nozzles formed by changing the angle little by little to the nozzle, each shower becomes local and covers it. However, in recent drum-type washing machines with water-saving flow, it is necessary to circulate with a small amount of water, and there is a limit to cover with the number of spray ports.
また、特許文献２に開示の水循環技術は、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を変え、それぞれの回転ドラムの各回転方向回転時に落下する洗濯物にシャワーを当てて洗濯物の重さを増やし叩き洗いによる洗浄力をあげるものであるが、特に高容量の洗濯物量時には叩き洗いの状態にならず、その効果が得られない。 Further, the water circulation technique disclosed in Patent Document 2 has two discharge ports that switch discharge according to the forward and reverse rotation of the pump impeller, so that the washing water at the time of washing and rinsing according to the forward and reverse rotation of the rotary drum is provided. The direction of hanging is changed, and a shower is applied to the laundry that falls when the rotating direction of each rotating drum rotates, increasing the weight of the laundry and increasing the washing power by tapping, especially when the amount of laundry is high capacity It is not in the state of scouring, and the effect cannot be obtained.
本発明の主たる目的は、水槽内の洗濯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洗濯水の回転ドラム内の洗濯物への吐出効率や洗濯物への浸透性を向上させることで洗浄力の高いドラム式洗濯機を提供することにある。 The main object of the present invention is to circulate the washing water in the aquarium with a circulation pump, and to improve the discharge efficiency of the washing water to the laundry in the rotating drum and the permeability to the laundry by the discharge side path from the circulation pump. An object of the present invention is to provide a drum-type washing machine with high detergency by improving it.
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、有底円筒形に形成された回転ドラムと、前記回転ドラムを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設置する水槽と、前記回転ドラムを回転制御するモータと、前記水槽内の洗濯水を前記水槽に接続した循環経路を通じ循環ポンプにより前記回転ドラム内に循環させる水循環系とを備え、前記モータ、循環ポンプ等を駆動
して洗濯工程、すすぎ工程の少なくとも１つが行えるドラム式洗濯機において、前記水循環系は、前記水槽の外周壁に設けられ前記循環経路の循環ポンプからの吐出側経路が接続される入水口と、前記水槽の前端壁に設けられ前記入水口と連結されるとともに洗濯水を分岐する導水路と、前記導水路に設けられ洗濯水を前記水槽の前端壁裏面と前記回転ドラムの前端壁表面との間に吐出させる複数の吐出口と、前記複数の吐出口から吐出された洗濯水を前記回転ドラム内に噴射する複数の噴射口とを設け、前記吐出口は、前記水槽の前端壁裏面と前記回転ドラムの前端壁表面との間に所定の周方向範囲で開口し、前記水槽の前端壁裏面は、前記吐出口から吐出した洗濯水が前記回転ドラム内方に向かうようにする案内面を有し、前記吐出口から吐出された洗濯水が前記水槽の前端壁の裏面と前記案内面に沿って流れ前記噴射口から噴射されるように構成し、前記入水口、前記吐出口、及び前記噴射口の開口方向は、前記回転ドラムの略回転中心側に向いてい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 rotating drum formed in a bottomed cylindrical shape, and a rotating shaft in a horizontal direction from the front side toward the back side that is the bottom. A water tank installed so as to be inclined downward from the horizontal direction, a motor for controlling the rotation of the rotating drum, and washing water in the water tank are circulated in the rotating drum by a circulation pump through a circulation path connected to the water tank. A drum-type washing machine having a water circulation system and capable of driving at least one of a washing process and a rinsing process by driving the motor, a circulation pump, etc., wherein the water circulation system is provided on an outer peripheral wall of the water tank and circulates in the circulation path A water inlet to which a discharge-side path from the pump is connected; a water conduit that is provided on a front end wall of the water tank and is connected to the water inlet and branches the wash water; and the water conduit A plurality of discharge ports provided between the back surface of the front end wall of the water tank and the front end wall surface of the rotary drum, and the wash water discharged from the plurality of discharge ports is sprayed into the rotary drum. A plurality of injection ports, and the discharge port opens in a predetermined circumferential range between the front end wall back surface of the water tank and the front end wall surface of the rotating drum, and the front end wall back surface of the water tank The washing water discharged from the outlet has a guide surface that is directed inward of the rotary drum, and the washing water discharged from the discharge port flows along the back surface of the front end wall of the water tank and the guide surface. It is configured to be ejected from a mouth, and the opening direction of the water inlet, the discharge port, and the jet is directed to a substantially rotation center side of the rotating drum.
このような構成により、水循環系において、入水口での流水圧力の損失を可能な限り低減でき、且つ吐出口での流水圧力を最大限確保できることにより、少ない水量でも複数の噴射口から高い流水圧の循環水が噴射可能となり、低容量や高容量の洗濯物それぞれにより強力な循環水を噴射することができ、洗濯物への洗濯水の浸透性が高まる為、洗浄効果を高めることが可能となる。 With such a configuration, in the water circulation system, the loss of flowing water pressure at the inlet can be reduced as much as possible, and the maximum flowing water pressure at the outlet can be ensured, so that even with a small amount of water, high Can be sprayed, and powerful circulating water can be sprayed by each of low-volume and high-capacity laundry, increasing the permeability of the washing water into the laundry, so that the washing effect can be enhanced. Become.
本発明のドラム式洗濯機によれば、少ない水量でも複数の噴射口から高い流水圧の循環水が噴射可能となり、低容量や高容量の洗濯物それぞれにより強力な循環水を噴射することができ、洗濯物への洗濯水の浸透性が高まる為、洗浄効果を高めることが可能となる。 According to the drum type washing machine of the present invention, it is possible to inject circulating water with high flowing water pressure from a plurality of injection ports even with a small amount of water, and it is possible to inject strong circulating water into each of low-capacity and high-capacity laundry. Since the permeability of the washing water into the laundry is increased, the cleaning effect can be enhanced.
第１の発明は、有底円筒形に形成された回転ドラムと、前記回転ドラムを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設置する水槽と、前記回転ドラムを回転制御するモータと、前記水槽内の洗濯水を前記水槽に接続した循環経路を通じ循環ポンプにより前記回転ドラム内に循環させる水循環系
とを備え、前記モータ、循環ポンプ等を駆動して洗濯工程、すすぎ工程の少なくとも１つが行えるドラム式洗濯機において、前記水循環系は、前記水槽の外周壁に設けられ前記循環経路の循環ポンプからの吐出側経路が接続される入水口と、前記水槽の前端壁に設けられ前記入水口と連結されるとともに洗濯水を分岐する導水路と、前記導水路に設けられ洗濯水を前記水槽の前端壁裏面と前記回転ドラムの前端壁表面との間に吐出させる複数の吐出口と、前記複数の吐出口から吐出された洗濯水を前記回転ドラム内に噴射する複数の噴射口とを設け、前記吐出口は、前記水槽の前端壁裏面と前記回転ドラムの前端壁表面との間に所定の周方向範囲で開口し、前記水槽の前端壁裏面は、前記吐出口から吐出した洗濯水が前記回転ドラム内方に向かうようにする案内面を有し、前記吐出口から吐出された洗濯水が前記水槽の前端壁の裏面と前記案内面に沿って流れ前記噴射口から噴射されるように構成し、前記入水口、前記吐出口、及び前記噴射口の開口方向は、前記回転ドラムの略回転中心側に向いていることにより、水循環系において、入水口での流水圧力の損失を可能な限り低減でき、且つ吐出口での流水圧力を最大限確保できることにより、少ない水量でも複数の噴射口から高い流水圧の循環水が噴射可能となり、低容量や高容量の洗濯物それぞれにより強力な循環水を噴射することができ、洗濯物への洗濯水の浸透性を高まる為、洗浄効果を高めることが可能となる。
The first invention is a rotating drum formed in a bottomed cylindrical shape, and the rotating drum is installed such that the rotation axis direction is horizontal or inclined downward from the horizontal direction from the front side toward the back side as the bottom. A water tank, a motor for controlling the rotation of the rotating drum, and a water circulation system for circulating the washing water in the water tank into the rotating drum by a circulation pump through a circulation path connected to the water tank. In the drum-type washing machine that can perform at least one of a washing process and a rinsing process by driving, etc., the water circulation system is provided on the outer peripheral wall of the water tank and connected to the discharge side path from the circulation pump of the circulation path. A water inlet, a water guide path provided on a front end wall of the water tank and connected to the water inlet, and branching wash water; a wash water provided in the water path and the back surface of the front end wall of the water tank; A plurality of discharge ports for discharging between the front end wall surface of the rotary drum and a plurality of injection ports for spraying the wash water discharged from the plurality of discharge ports into the rotary drum, And a front end wall surface of the water tank and a front end wall surface of the rotary drum are opened in a predetermined circumferential range, and the front end wall back surface of the water tank has a wash water discharged from the discharge port inside the rotary drum. The washing water discharged from the discharge port flows along the back surface of the front end wall of the water tank and the guide surface and is injected from the injection port. The opening direction of the water port, the discharge port, and the injection port is directed to the substantially rotation center side of the rotating drum, so that the loss of flowing water pressure at the water inlet can be reduced as much as possible in the water circulation system, and Ensure maximum flow pressure at the discharge port Thus, even with a small amount of water, it becomes possible to inject circulating water with a high flow pressure from a plurality of injection ports, and it is possible to inject strong circulating water into each of the low-capacity and high-capacity laundry. Since the permeability of the water increases, the cleaning effect can be enhanced.
第２の発明は、特に、第１の発明の回転ドラムの略回転中心からの垂下線と、前記回転ドラムの略回転中心と複数の噴射口とを結ぶ線との角度は、二種類以上からなることを特徴とすることにより、洗濯水が略上方向かつ略直線状の拡がりを有した噴射と、その噴射よりも洗濯水が略下方向かつ拡がりを有した扇形状で噴射することが可能となるので、それぞれの吐出口から噴射された洗濯水は異なる流水圧力を有する状態でそれぞれの噴射口から回転ドラム内に噴射されるため、回転ドラムの回転軸に対する噴射角度の異なる噴射、及び噴射幅や拡がり角度の異なる噴射を実現でき、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。 In the second invention, in particular, the angle between the drooping line from the approximate rotation center of the rotating drum of the first invention and the line connecting the approximately rotation center of the rotating drum and the plurality of injection ports is from two or more types. By being characterized, the washing water can be sprayed in a substantially upward direction and a substantially linear expansion, and the washing water can be sprayed in a generally downward direction and a fan shape. Therefore, since the wash water sprayed from the respective discharge ports is sprayed from the respective spray ports into the rotating drum in a state having different flowing water pressures, the jets having different spray angles with respect to the rotating shaft of the rotating drum, and the jets It is possible to realize injection with different widths and spread angles, enabling injection to the entire laundry, and synergistically enhancing the cleaning effect.
第３の発明は、特に、第１または第２の発明のいずれかの入水口から複数の吐出口へのそれぞれの距離は、二種類以上からなることを特徴とすることにより、洗濯水が略上方向かつ略直線状の拡がりを有した噴射と、その噴射よりも洗濯水が略下方向かつ拡がりを有した扇形状で噴射することが可能となるので、それぞれの吐出口から噴射された洗濯水は異なる流水圧力を有する状態でそれぞれの噴射口から回転ドラム内に噴射されるため、回転ドラムの回転軸に対する噴射角度の異なる噴射、及び噴射幅や拡がり角度の異なる噴射を実現でき、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。 In particular, the third invention is characterized in that each of the distances from the water inlet of the first or second invention to the plurality of outlets comprises two or more types, so that the washing water is substantially omitted. Since it is possible to inject the jet with an upward and substantially linear spread and a fan shape with the wash water substantially downward and wider than the jet, the wash sprayed from each discharge port Since water is injected into the rotating drum from the respective injection ports with different flowing water pressures, it is possible to realize injection with different injection angles with respect to the rotating shaft of the rotating drum, and injection with different injection widths and spreading angles. It becomes possible to inject the whole and synergistically enhance the cleaning effect.
第４の発明は、第１〜第３のいずれかの発明の回転ドラムの略回転中心からの垂下線と、前記回転ドラムの略回転中心と一方の噴射口とを結ぶ線との角度は、前記垂下線と、前記回転ドラムの略回転中心と他方の噴射口とを結ぶ線との角度よりも大きくするとともに、角度が大きいほうの噴射口と入水口との距離を、角度が小さいほうの噴射口と入水口との距離よりも短くしたことを特徴とすることにより、洗濯水が略上方向かつ略直線状の拡がりを有した噴射と、その噴射よりも洗濯水が略下方向かつ拡がりを有した扇形状で噴射することが可能となるので、それぞれの吐出口から噴射された洗濯水は異なる流水圧力を有する状態でそれぞれの噴射口から回転ドラム内に噴射されるため、回転ドラムの回転軸に対する噴射角度の異なる噴射、及び噴射幅や拡がり角度の異なる噴射を実現でき、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。 In a fourth aspect of the invention, the angle between the droop line from the approximate rotation center of the rotating drum of any one of the first to third aspects and the line connecting the approximate rotation center of the rotating drum and one injection port is The distance between the drooping line and the line connecting the substantially rotation center of the rotating drum and the other injection port is larger, and the distance between the larger injection port and the water inlet is smaller. By making the distance shorter than the distance between the injection port and the water inlet, the washing water has a substantially upward and substantially linear spreading, and the washing water has a substantially downward and expanding direction. Since the washing water sprayed from the respective discharge ports is sprayed from the respective spray ports into the rotary drums with different flowing water pressures, Injection with different injection angles with respect to the rotation axis And can realize different injection of injection width and divergence angle, it is possible to increase the synergistic cleaning effect enables the injection to the entire laundry.
また、一方の噴射口からは回転ドラムの中心軸方向に向かって拡がりが小さく回転ドラムの奥方向に向けた噴射を行うことで、他方の噴射口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、回転ドラム内で洗濯物が早期に動きやすくなるので、洗濯時に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。
In addition, a rotating drum that has a small expansion toward the center axis direction of the rotating drum from one of the injection ports and that is difficult to get wet by an injection having a large expansion from the other injection port by performing injection toward the back direction of the rotating drum Laundry from the center of the back is also wetted early, increasing the effectiveness of the washing water, and the volume of the laundry from the back of the center is reduced by soaking in the washing water, so that the laundry can be quickly brought into the rotating drum. As a result, it is possible to spray the entire laundry from the gap created by reducing the volume of the laundry and synergistically enhance the cleaning effect. .
第５の発明は、特に、第１〜第４の発明のいずれかの入水口の断面積に対するそれぞれの吐出口の断面積の比率が、二種類以上からなることを特徴とすることにより、吐出口の吐出水圧や単位時間における吐出流量を自在に設定することが可能となり、噴射口からの洗濯水の噴射において回転ドラムの回転軸に対する噴射角度を設定できるとともに、噴射幅や拡がり角度も吐出口の断面形状で自在に調整することが可能となる。 According to a fifth aspect of the present invention, in particular, the ratio of the cross-sectional area of each discharge port to the cross-sectional area of any one of the first to fourth inventions comprises two or more types. The discharge water pressure at the outlet and the discharge flow rate per unit time can be set freely, the injection angle with respect to the rotating shaft of the rotating drum can be set in the injection of washing water from the injection port, and the injection width and the expansion angle can also be set at the discharge port It is possible to freely adjust the cross-sectional shape.
第６の発明は、特に、第１〜第５のいずれか１つの発明の入水口と二つ以上の吐出口とを分岐する導水路の所定位置における断面積が、二種類以上からなることを特徴とすることにより、入水口で確保できた流水の圧損を導水路においても最小限に抑える一方で、導水路の所定位置における断面積を絞れば、導水路に連結する吐出口の吐出圧力を上げ、噴射口からの洗濯水の噴射において回転ドラムの回転軸に対する噴射角度を大きくする、さらには噴射幅や拡がり角度も少なくするなども実現可能となる。 In the sixth aspect of the invention, in particular, the cross-sectional area at a predetermined position of the water conduit that branches the water inlet and the two or more outlets of any one of the first to fifth aspects of the invention is composed of two or more types. By minimizing the pressure loss of the flowing water that can be secured at the water inlet, the discharge pressure of the outlet connected to the water conduit can be reduced by reducing the cross-sectional area at a predetermined position of the water conduit. It is also possible to increase the injection angle with respect to the rotating shaft of the rotating drum in the injection of washing water from the injection port, and further reduce the injection width and the spreading angle.
第７の発明は、特に、第６の発明の入水口と二つ以上の吐出口を分岐する導水路の断面積を、吐出口に近づくにつれて小さくすることを特徴とすることにより、導水路の流水圧を上げる場合は、導水路内に設置する局所的なリブ等を立てるなどにより実現可能とすると同時に、導水路の断面積を吐出口に近づくにつれて小さくすることにより、導水路に連結する吐出口の吐出圧力を上げ、噴射口からの洗濯水の噴射において回転ドラムの回転軸に対する噴射角度を大きくする、さらには噴射幅や拡がり角度も少なくするなども実現可能となる。 The seventh invention is characterized in that, in particular, the cross-sectional area of the water conduit that branches the water inlet and the two or more discharge ports of the sixth invention is reduced as it approaches the discharge port. Increasing the water flow pressure can be realized by raising local ribs installed in the water channel, etc., and at the same time, by reducing the cross-sectional area of the water channel as it approaches the outlet, It is possible to increase the discharge pressure at the outlet, increase the injection angle with respect to the rotating shaft of the rotating drum in the injection of washing water from the injection port, and further reduce the injection width and the spreading angle.
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濯機の概略構造を示す断面図、図２（ａ）は、同ドラム式洗濯機に用いた循環ポンプの断面図、図２（ｂ）は、同ドラム式洗濯機に用いた循環ポンプの側面図、図３（ａ）は、同ドラム式洗濯機の水槽の要部斜視図、図３（ｂ）は、同ドラム式洗濯機の水槽の前面壁を内方より見た裏面図、図４は、同ドラム式洗濯機の水循環経路の導水路近傍の断面図、図５は、同ドラム式洗濯機の洗濯水が噴射されている状態を示す正面図を示すものである。
(Embodiment 1)
1 is a cross-sectional view showing a schematic structure of a drum type washing machine according to Embodiment 1 of the present invention, FIG. 2 (a) is a cross-sectional view of a circulation pump used in the drum type washing 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 the water tank of the drum type washing machine, and Fig. 3B is a water tank of the drum type washing machine. 4 is a rear view of the front wall of the drum-type washing machine as viewed from the inside, FIG. 4 is a cross-sectional view of the vicinity of the water circulation path of the water circulation path of the drum-type washing machine, and FIG. The front view which shows is shown.
本実施の形態１のドラム式洗濯機は、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濯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、水循環系１６にて水槽３内の洗濯水を循環させて洗剤の早期溶け込みや偏りの防止、洗濯やすすぎの機能向上を図る機能も有している。 The drum type washing machine according to the first embodiment automatically controls the motor 6, the water supply system 7, the drainage system 8, and the drying system 9 shown in FIG. 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, washing water in the water tub 3 is circulated in the water circulation system 16 in the water circulation system 16 to prevent the premature dissolution and bias of the detergent as necessary, such as during the washing preparation process, the washing process, and the rinsing process. 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の開閉によって洗濯工程終了時、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、循環系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. The circulation system 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、洗濯、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 washing, dehydration, and drying.
なお、洗濯機本体２の正面側には洗濯機本体開口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 washing machine body opening 2 b is provided on the front side of the washing machine body 2, via a second opening 13 provided on the front side of the water tub 3 and a first opening 54 provided on the front side of the rotating drum 4. Thus, the laundry can be taken in and out of the rotating drum 4. An opening / closing door 5 is provided in the main body opening 2b, so that the 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、洗濯工程または、洗濯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。 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. Forward and 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 reverse, 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.
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。 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.
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。 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.
また、高い解し作用により、洗濯、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。 In addition, because of the high unraveling action, it is possible to suppress the entanglement between the laundry caused by the progress of the washing and rinsing process, so that effective tapping washing in the forward and reverse arc rotation mode is continuously performed, 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濯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 / reverse arc rotation drive mode, two different behaviors for the laundry being washed and rinsed depending on 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、図１に示すように台板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２０ｄ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 2 a as shown in FIG. 1, and the discharge side path 16 b from the circulation pump 20 of the water circulation path 16 faces the front of the washing machine body 2 where the opening 13 of the water tank 3 is located. It is supposed to be extended. Specifically, as shown in FIG. 2, in the circulation pump 20, a resin-made pump casing 20b containing an impeller 20a is applied to a bearing partition 20d1 at the opening side of the motor casing 20d of the circulation motor 20c. And the impeller 20a is directly connected to the motor shaft 20e, and this is fitted to a mounting seat 35 made of resin.
図３（ａ）に示すように、水槽３の前面壁３ｈの下方部分、略Ｕ字状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、図３（ｂ）、図４に示すように内方より、パッキン５５ａを間に挟んで、ネジの締結等により取り付けられることで、導水路５５ｂを形成している。 As shown in FIG. 3A, a lower portion of the front wall 3h of the water tank 3 is formed with a bulging portion 3a formed in a substantially U shape and bulging forward, and the outer shape is substantially the same as the bulging portion 3a. As shown in FIGS. 3B and 4, the cover 55 is attached from the inside by sandwiching the packing 55a and fastening the screws or the like to form the water guide passage 55b.
図３（ａ）に示すように、膨出部３ａの左下方部（図３（ｂ）では右下方部）、すなわち、すなわち回転ドラム４の回転中心より下方左寄りの位置には、回転ドラム４に対し垂線方向に開口する入水口５１が形成され、入水口５１の開口を閉じるべく、水循環経路１６の吐出側経路１６ｂが接続されている。また、略Ｕ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Ｕ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。 As shown in FIG. 3A, the rotating drum 4 is located at the lower left portion of the bulging portion 3a (lower right portion in FIG. 3B), that is, at a position on the lower left side of the rotating center of the rotating drum 4. On the other hand, a water inlet 51 that opens in the direction of the perpendicular line is formed, and the discharge side path 16b of the water circulation path 16 is connected to close the opening of the water inlet 51. Further, each upper end portion of the cover 55 formed in a substantially U shape is formed with a notch portion 55c having no sealing structure including the packing 55a, whereby the bulge portion 3a and the cover 55 are substantially U-shaped. 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を介して入水口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吐出し、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の表面の間で形成する流路５２を通じ、さらに水槽３の正面側に設けた第２の開口１３を介して回転ドラム４方向に向かう案内面５６を経由し、噴射口５３より回転ドラム４内に（図４の矢印ａ方向）噴射するようにしてある。 Washing water pressurized by the circulation pump 20 flows into the water conduit 55b from the water inlet 51 via the discharge side path 16b of the water circulation path 16, and corresponds to the rear surface of the front end wall 3h of the water tank 3 from the outlet 55d. Washing water is discharged between the front end wall 4b of the rotating drum 4 and the flow path 52 formed between the rear surface of the front end wall 3h of the water tub 3 and the surface of the front end wall 4b of the rotating drum 4 corresponding thereto. Through the second opening 13 provided on the front side of the water tank 3 and through the guide surface 56 directed in the direction of the rotating drum 4 and then injected into the rotating drum 4 from the injection port 53 (in the direction of arrow a in FIG. 4). I have to do it.
また入水口５１、吐出口５５ｄ、及び噴射口５３の開口方向は回転ドラムの略回転中心側（図３ｂの矢印方向）に向いており、且つ１ヶ所の入水口５１から２ヶ所の吐出口５５ｄの間は、それぞれ閉塞された導水路５５ｂでつながっていることから、特に、入水口５１から距離が遠いほうの吐出口５５ｄにつき、入水口５１から吐出口５５ｄまでの洗濯水の流水圧力の低下は、導水路５５ｂの内形状で調整可能な管路抵抗による損失レベルに抑えることができる。 Further, the opening directions of the water inlet 51, the discharge port 55d, and the injection port 53 are directed substantially toward the center of rotation of the rotary drum (in the direction of the arrow in FIG. 3b), and from one water inlet 51 to two outlets 55d. Are connected by closed water conduits 55b, and particularly, the discharge pressure of the washing water from the water inlet 51 to the outlet 55d is decreased for the outlet 55d farther from the water inlet 51. Can be suppressed to the loss level due to the pipe resistance adjustable by the inner shape of the water conduit 55b.
上記の構成により、入水口５１から吐出口５５ｄまでの洗濯水の流水圧力の損失を抑えることができる為、少ない水量でも二つの噴射口から高い流水圧の循環水が噴射可能となり、低容量や高容量の洗濯物それぞれにより強力な循環水を噴射することができ、洗濯物への洗濯水の浸透性を高めることができるので、洗浄効果を向上することが可能となる。 With the above configuration, loss of the water flow pressure of the wash water from the water inlet 51 to the discharge port 55d can be suppressed. Therefore, even with a small amount of water, circulating water with high water pressure can be injected from the two injection ports. Powerful circulating water can be sprayed from each of the large-capacity laundry, and the permeability of the washing water into the laundry can be increased, so that the cleaning effect can be improved.
また、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５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。 Further, even 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. 5 is closed in the circumferential direction by the laundry, the right injection port By spraying from 53 to the vicinity of the first opening 54 of the rotary drum 4, the laundry in the vicinity of the injection port 53 is wetted early to reduce the volume, thereby eliminating the blockage in the vicinity of the left injection port 53 by the laundry. be able to.
また、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すことができ、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。
Further, the washing liquid can be effectively applied to the laundry in the rotating drum 4 regardless of the amount, and since the discharge port 55d is not in contact with the laundry in the rotating drum 4, the laundry is caught and washed. It is possible to prevent the behavior necessary for rinsing, drying, etc. from being disturbed, or to prevent the laundry from being damaged or torn, and the appearance of 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.
また、吐出口５５ｄの数を増加させたり、吐出口５５ｄに対応する噴射口５３の形状を変えることにより、洗濯水の噴射の回転ドラム４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, by increasing the number of the discharge ports 55d or changing the shape of the spray ports 53 corresponding to the discharge ports 55d, the spray angle of the wash water spray with respect to the rotation shaft of the rotating drum 4 and the spray spread angle are different. Injection becomes feasible.
このようにすれば、一方の噴射口からは回転ドラムの中心軸方向に向かって拡がりが小さく回転ドラムの奥方向に向けた噴射を行うことで、他方の噴射口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。 In this way, injecting with a large expansion from the other injection port by performing injection toward the back direction of the rotating drum with a small expansion from the one injection port toward the central axis direction of the rotating drum. The wet laundry from the center of the rotating drum, which is hard to get wet, is also wetted early, increasing the effect of washing water, and the volume of the laundry in the back from the center is reduced by soaking it in the rotating drum. Laundry becomes easier to move at an early stage, which improves the effectiveness of tapping, and allows the entire laundry to be sprayed from the gap created by reducing the volume of the laundry. It becomes.
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６は、本発明の実施の形態２におけるドラム式洗濯機の同ドラム式洗濯機の水槽の前面壁を内方より見た裏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)
FIG. 6: shows the back view which looked at the front wall of the water tank of the drum type washing machine of the drum type washing machine in Embodiment 2 of this invention from the inside. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
図６に示すように入水口５１は、水槽３もしくは回転ドラム４の中心軸の垂下線に対し角度γの位置に配置し、水槽３もしくは回転ドラム４の中心軸に対し左右２箇所に配置された吐出口５５ｄにおいて、入水口５１となす角度をそれぞれ角度αと角度βとする。角度α＝角度βが成り立つ場合、入水口５１から導水路５５ｂを経由し、吐出口５５ｄから吐出し噴射口５３から噴出される洗濯水の二つの噴射は、ほぼ均等の勢いで洗濯物に噴射できる。 As shown in FIG. 6, the water inlets 51 are arranged at an angle γ with respect to the suspended line of the central axis of the water tank 3 or the rotating drum 4, and are arranged at two positions on the left and right with respect to the central axis of the water tank 3 or the rotating drum 4. In the discharge port 55d, the angles formed with the water inlet 51 are an angle α and an angle β, respectively. When the angle α = the angle β holds, the two injections of the wash water discharged from the discharge port 55d and discharged from the discharge port 53 through the water inlet 51 through the water conduit 55b are injected into the laundry with almost equal momentum. it can.
これに対し角度α＜角度βが成り立つ場合、入水口５１から吐出口５５ｄまでに生じる洗濯水の流水圧力の低下は、角度α＝角度βが成り立つときより低減化でき、角度α側の噴射口５３から噴出される洗濯水の噴射は、角度α＝角度βが成り立つときより強い流水圧で洗濯物に噴射できる。逆に角度β側の噴射口５３から噴出される洗濯水の噴射は、角度α＝角度βが成り立つときより弱い流水圧で洗濯物に噴射されることになる。 On the other hand, when the angle α <the angle β holds, the decrease in the washing water flowing pressure generated from the water inlet 51 to the discharge port 55d can be reduced more than when the angle α = the angle β holds, and the injection port on the angle α side. The washing water jetted from 53 can be jetted onto the laundry with a stronger flowing water pressure when the angle α = the angle β holds. On the other hand, the washing water jetted from the jet port 53 on the angle β side is jetted onto the laundry with a lower flowing water pressure than when the angle α = the angle β holds.
上記の構成により、図５に示すように、正面から見て左側の噴射口５３からの洗濯水は、シャワー形状Ａのように略上方向に向け、かつ略直線状の拡がりを有した角度で噴射し、一方、正面から見て右側の噴射口５３からの洗濯水は、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、かつシャワー形状Ａよりも拡がりを有した扇形状で噴射することとなる。 With the above configuration, as shown in FIG. 5, the washing water from the left-side injection port 53 as viewed from the front is directed upward substantially like the shower shape A and at an angle having a substantially linear expansion. On the other hand, the washing water from the right side injection port 53 as viewed from the front is in the shape of a fan that is downward in the shower shape A and has a wider area than the shower shape A, as in the shower shape B. Will be injected.
すなわち、それぞれの吐出口５５ｄから噴射された洗濯水は、異なる流水圧力を有して左右の噴射口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、及び噴射幅や拡がり角度の異なる噴射を実現できる。 That is, the wash water sprayed from the respective discharge ports 55d is sprayed into the rotary drum 4 from the left and right spray ports 53 through the first openings 54 with different flowing water pressures. Injection with different injection angles with respect to the rotation axis and injection with different injection widths and spread angles can be realized.
さらに本実施の形態では、入水口５１は、図６における右側の吐出口５５ｄとの距離が左側の吐出口５５ｄとの距離よりも近い位置に配置しているため、距離が近いほうの右側の吐出口５５ｄの吐出水圧を距離が遠いほうの吐出口５５ｄの吐出水圧よりも単純に高め
ることができ、入水口５１に距離が近いほうの噴射口５３からの洗濯水の噴射時において、入水口５１に距離が遠いほうの噴射口５３の噴射より回転ドラムの回転軸に対する噴射角度を大きくすることや、吐出水圧を高めて噴射の拡がり角度を小さくすることが可能となり、回転ドラム４の背面側（奥側）の洗濯物に対して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, in the present embodiment, the water inlet 51 is disposed at a position where the distance from the right discharge port 55d in FIG. 6 is closer than the distance from the left discharge port 55d. The discharge water pressure of the discharge port 55d can be simply increased as compared with the discharge water pressure of the discharge port 55d having a longer distance, and when the washing water is injected from the injection port 53 which is closer to the water input port 51, the water input port It is possible to increase the injection angle with respect to the rotating shaft of the rotary drum than the injection of the injection port 53 farther away from the nozzle 51, or to increase the discharge water pressure to reduce the spray spreading angle. The (inner side) laundry can be sprayed on the entire laundry, and the washing effect can be enhanced synergistically.
一方、入水口５１に対して距離が遠いほうの噴射口５３からの洗濯水の噴射時において、入水口５１に距離が近いほうの噴射口５３の噴射よりも回転ドラムの回転軸に対する噴射角度を小さくすることや、吐出水圧を低くして噴射の拡がり角度を大きくすることが可能となり、回転ドラム４の正面側（開口側）の洗濯物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。 On the other hand, when the washing water is jetted from the jet port 53 that is far from the water inlet 51, the jet angle with respect to the rotation shaft of the rotary drum is set to be larger than the jet of the jet port 53 that is closer to the water inlet 51. It is possible to reduce the discharge pressure and increase the spread angle of the injection by lowering the discharge water pressure, enabling injection to the laundry on the front side (opening side) of the rotating drum 4 and synergistically enhancing the cleaning effect. Is possible.
したがって、図６とは反転位置となる図５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、洗濯時に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。 Accordingly, by performing injection toward the inner side of the rotating drum 4 from the left injection port 53 shown in FIG. The laundry in the back part from the center of the rotating drum 4 which is difficult to get wet by the jet having a large spread from the injection port 53 is also wetted at an early stage to enhance the effect of washing water, and the volume of the laundry in the back part from the center is increased. The amount of washing is reduced by soaking, and the laundry can easily move in the rotating drum 4 at an early stage. Therefore, the washing effect is improved during washing, and the entire laundry is removed from the gap created by reducing the volume of the laundry. This makes it possible to inject the water into the water and synergistically enhance the cleaning effect.
また、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５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。 Further, even 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. 5 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.
さらに入水口の位置を循環ポンプ２０の配置側に設定すれば、循環ポンプ２０から入水口５１へ接続される吐出側経路を最短化する事が可能となり、水循環経路内における流水圧力の損失を可能な限り低減でき、且つ吐出口での流水圧力を最大限確保できることにより、少ない水量でも噴射口５３からより流水圧の高い循環水が噴射可能となり、低容量や高容量の洗濯物それぞれにより強力な循環水を噴射することができ、洗濯物への洗濯水の浸透性を高まる為、洗浄効果を高めることが可能となる。 Furthermore, if the position of the water inlet is set to the arrangement side of the circulation pump 20, the discharge side path connected from the circulation pump 20 to the water inlet 51 can be shortened, and loss of flowing water pressure in the water circulation path is possible. Since it can be reduced as much as possible and the flowing water pressure at the discharge port can be ensured to the maximum, circulating water having a higher flowing water pressure can be injected from the injection port 53 even with a small amount of water, which is more powerful for low-volume and high-capacity laundry. Circulating water can be jetted and the permeability of the washing water into the laundry is increased, so that the cleaning effect can be enhanced.
さらに、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。 Further, 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 and reverse continuous rotation drive mode and the behavior of the laundry that is switched between the left and right in the forward and reverse arc rotation drive mode.
なお、本実施の形態において、噴射口５３、吐出口５５ｄ、入水口５１を左右反転させた構成としても同様の効果がえられる。 In the present embodiment, the same effect can be obtained even when the injection port 53, the discharge port 55d, and the water inlet 51 are reversed left and right.
（実施の形態３）
図７は、本発明の実施の形態３におけるドラム式洗濯機の水槽の前面壁を内方より見た裏面図を示すものである。実施の形態１または２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. 7: shows the back view which looked at the front wall of the water tank of the drum type washing machine in Embodiment 3 of this invention from the inside. The same components as those in the first or second embodiment are denoted by the same reference numerals, and the description thereof is omitted.
図７に示すように入水口５１の開口断面積をＳ５１、水槽３の中心軸に対し左右２箇所に配置された吐出口５５ｄにおいて、正面（ここでの正面は図５の正面視をいう）左側の吐出口５５ｄの開口断面積をＳ５５ｄ（Ｌ）、正面（ここでの正面は図５の正面視をいう）右側の吐出口５５ｄの開口断面積をＳ５５ｄ（Ｒ）、加えて、断面積比Ｓ５５ｄ（Ｌ）
／Ｓ５１＝ＳＬ、断面積比Ｓ５５ｄ（Ｒ）／Ｓ５１＝ＳＲとする。
As shown in FIG. 7, the opening cross-sectional area of the water inlet 51 is S 51, and the front of the outlet 55 d arranged at two positions on the left and right of the central axis of the water tank 3 (the front here refers to the front view of FIG. 5). The opening cross-sectional area of the left discharge port 55d is S55d (L), the front cross-sectional area of the right discharge port 55d is S55d (R). Ratio S55d (L)
/ S51 = SL and cross-sectional area ratio S55d (R) / S51 = SR.
断面積比ＳＬ＝ＳＲ（＞１、または≦１）が成り立つ場合、入水口５１から導水路５５ｂを経由し、吐出口５５ｄから吐出し噴射口５３から噴出される洗濯水の二つの噴射は、ほぼ均等の勢いで洗濯物に噴射できる。 When the cross-sectional area ratio SL = SR (> 1 or ≦ 1) holds, the two injections of washing water discharged from the discharge port 55d and discharged from the discharge port 53 through the water inlet 51 through the water conduit 55b are: It can be sprayed on the laundry with almost equal momentum.
これに対し、断面積比ＳＬ＜ＳＲ、ＳＬ＜１、かつＳＲ≧１が成り立つ場合、入水口５１から正面左側の吐出口５５ｄまでに生じる洗濯水の流水圧力は、断面積比ＳＬ＝ＳＲが成り立つときより大きくでき、正面左側の噴射口５３から噴出される洗濯水の噴射は、断面積比ＳＬ＝ＳＲが成り立つときより強い流水圧で洗濯物に噴射できる。逆に正面右側の噴射口５３から噴出される洗濯水の噴射は、断面積比ＳＬ＝ＳＲが成り立つときより弱い流水圧で洗濯物に噴射されることになる。 On the other hand, when the cross-sectional area ratios SL <SR, SL <1, and SR ≧ 1, the washing water flowing pressure generated from the water inlet 51 to the discharge port 55d on the left side of the front surface is equal to the cross-sectional area ratio SL = SR. The washing water jetted from the jet port 53 on the left side of the front can be jetted onto the laundry with a stronger flowing water pressure than when the cross-sectional area ratio SL = SR holds. On the contrary, the washing water jetted from the jet port 53 on the right side of the front side is jetted to the laundry with a lower flowing water pressure when the cross-sectional area ratio SL = SR is established.
上記の構成により、図５に示すように、正面から見て左側の噴射口５３からの洗濯水は、シャワー形状Ａのように略上方向に向け、かつ略直線状の拡がりを有した角度で噴射し、一方、正面から見て右側の噴射口５３からの洗濯水は、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、かつシャワー形状Ａよりも拡がりを有した扇形状で噴射することとなる。 With the above configuration, as shown in FIG. 5, the washing water from the left-side injection port 53 as viewed from the front is directed upward substantially like the shower shape A and at an angle having a substantially linear expansion. On the other hand, the washing water from the right side injection port 53 as viewed from the front is in the shape of a fan that is downward in the shower shape A and has a wider area than the shower shape A, as in the shower shape B. Will be injected.
すなわち、それぞれの吐出口５５ｄから噴射された洗濯水は、異なる流水圧力を有して左右の噴射口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、及び噴射幅や拡がり角度の異なる噴射を実現できる。 That is, the wash water sprayed from the respective discharge ports 55d is sprayed into the rotary drum 4 from the left and right spray ports 53 through the first openings 54 with different flowing water pressures. Injection with different injection angles with respect to the rotation axis and injection with different injection widths and spread angles can be realized.
図６とは反転位置となる図５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、洗濯時に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。 The right injection is performed by performing injection from the left injection port 53 shown in FIG. 5, which is a reversal position with respect to FIG. 6, toward the back direction of the rotary drum 4 with a small expansion toward the central axis direction of the rotary drum 4. The laundry in the back part from the vicinity of the center of the rotating drum 4 which is difficult to be wet by the jet having a large spread from the mouth 53 is also wetted at an early stage to enhance the effect of the washing water, and the volume of the laundry in the back part from the vicinity of the center is increased. So that the laundry can easily move in the rotating drum 4 at an early stage, so that the effect of tapping is improved at the time of washing, and from the gap created by reducing the volume of the laundry, It becomes possible to inject and synergistically enhance the cleaning effect.
また、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５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。 Further, even 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. 5 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.
さらに、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。 Further, 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 and reverse continuous rotation drive mode and the behavior of the laundry that is switched between the left and right in the forward and reverse arc rotation drive mode.
なお、本実施の形態において、噴射口５３、吐出口５５ｄ、入水口５１を左右反転させた構成としても同様の効果がえられる。 In the present embodiment, the same effect can be obtained even when the injection port 53, the discharge port 55d, and the water inlet 51 are reversed left and right.
（実施の形態４）
図８（ａ）は、本発明の実施の形態４におけるドラム式洗濯機の同ドラム式洗濯機の水槽の前面壁を内方より見た平面図を示すものである。図８（ｂ）は、同ドラム式洗濯機の導入路のＬ−Ｌ拡大断面図を示すものである。図８（ｃ）は、同ドラム式洗濯機の導入路
のＲ−Ｒ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 4)
Fig.8 (a) shows the top view which looked at the front wall of the water tank of the drum type washing machine of the drum type washing machine in Embodiment 4 of this invention from the inside. FIG.8 (b) shows the LL expanded sectional view of the introduction path of the drum type washing machine. FIG.8 (c) shows the RR expanded sectional view of the introduction path of the drum type washing machine. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
図８（ａ）に示すように、本実施の形態４では、入水口５１と水槽３の中心軸に対し左右２箇所に配置された吐出口５５ｄを、それぞれ閉塞されたほぼ平面状に略Ｕ字に広がる導水路５５ｂでつながっている。ここで図８（ｂ）（ｃ）に示すように正面左側（ここでの正面は図５の正面視をいう）の導入路５５ｂの断面積をＳ５５ｂ（Ｌ）、正面右側（ここでの正面は図５の正面視をいう）の導入路５５ｂの断面積をＳ５５ｄ（Ｒ）とする。 As shown in FIG. 8 (a), in the fourth embodiment, the discharge ports 55d disposed at two positions on the left and right sides with respect to the central axis of the water inlet 51 and the water tank 3 are substantially U-shaped in a substantially closed shape. It is connected by a water conduit 55b that extends in a letter. Here, as shown in FIGS. 8B and 8C, the cross-sectional area of the introduction path 55b on the front left side (the front here refers to the front view of FIG. 5) is S55b (L), and the front right side (front here) (Refer to the front view of FIG. 5), the cross-sectional area of the introduction path 55b is S55d (R).
二つの導入路において、断面積Ｓ５５ｂ（Ｌ）＝断面積Ｓ５５ｄ（Ｒ）が成り立つ場合、入水口５１から導水路５５ｂを経由し、吐出口５５ｄから吐出し噴射口５３から噴出される洗濯水の二つの噴射は、ほぼ均等の勢いで洗濯物に噴射できる。 When the cross-sectional area S55b (L) = the cross-sectional area S55d (R) is established in the two introduction paths, the wash water discharged from the discharge port 55d and discharged from the discharge port 53 through the water intake channel 51 through the water guide channel 55b. The two sprays can be sprayed onto the laundry with almost equal momentum.
これに対し、断面積Ｓ５５ｂ（Ｌ）＜断面積Ｓ５５ｄ（Ｒ）が成り立つ場合、入水口５１から正面左側の吐出口５５ｄまでに生じる洗濯水の流水圧力は、断面積Ｓ５５ｂ（Ｌ）＝断面積Ｓ５５ｄ（Ｒ）が成り立つときより大きくでき、正面右の噴射口５３から噴出される洗濯水の噴射は、断面積Ｓ５５ｂ（Ｌ）＝断面積Ｓ５５ｄ（Ｒ）が成り立つときより強い流水圧で洗濯物に噴射できる。逆に正面右側の噴射口５３から噴出される洗濯水の噴射は、断面積Ｓ５５ｂ（Ｌ）＝断面積Ｓ５５ｄ（Ｒ）が成り立つときより弱い流水圧で洗濯物に噴射されることになる。 On the other hand, when the cross-sectional area S55b (L) <the cross-sectional area S55d (R) is satisfied, the flowing water pressure of the washing water generated from the water inlet 51 to the discharge port 55d on the left side of the front is the cross-sectional area S55b (L) = the cross-sectional area. The washing water jetted from the front right injection port 53 can be made larger than when S55d (R) is satisfied, and the laundry is injected with a stronger fluid pressure than when the sectional area S55b (L) = cross-sectional area S55d (R) is satisfied. Can be injected. On the contrary, the washing water jetted from the jet port 53 on the right side of the front is jetted onto the laundry with a lower flowing water pressure when the cross-sectional area S55b (L) = the cross-sectional area S55d (R) is established.
上記の構成により、図５に示すように、正面から見て左側の噴射口５３からの洗濯水は、シャワー形状Ａのように比較的上方向に、かつやや直線状に拡がりを有した角度で噴射し、一方、正面から見て右側の噴射口５３からの洗濯水は、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、かつ扇形状に拡がりを有した角度で噴射することとなる。 With the above configuration, as shown in FIG. 5, the washing water from the left-side injection port 53 as viewed from the front is relatively upward like the shower shape A and at an angle having a slightly linear expansion. On the other hand, the washing water from the right injection port 53 as viewed from the front is sprayed downward from the shower shape A and at an angle having a fan-shaped spread like the shower shape B. Become.
すなわち、それぞれの吐出口５５ｄから噴射された洗濯水は、異なる流水圧力を有して左右の噴射口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、及び噴射幅や拡がり角度の異なる噴射を実現できる。 That is, the wash water sprayed from the respective discharge ports 55d is sprayed into the rotary drum 4 from the left and right spray ports 53 through the first openings 54 with different flowing water pressures. Injection with different injection angles with respect to the rotation axis and injection with different injection widths and spread angles can be realized.
図６とは反転位置となる図５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、洗濯時に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。 The right injection is performed by performing injection from the left injection port 53 shown in FIG. 5, which is a reversal position with respect to FIG. 6, toward the back direction of the rotary drum 4 with a small expansion toward the central axis direction of the rotary drum 4. The laundry in the back part from the vicinity of the center of the rotating drum 4 which is difficult to be wet by the jet having a large spread from the mouth 53 is also wetted at an early stage to enhance the effect of the washing water, and the volume of the laundry in the back part from the vicinity of the center is increased. So that the laundry can easily move in the rotating drum 4 at an early stage, so that the effect of tapping is improved at the time of washing, and from the gap created by reducing the volume of the laundry, It becomes possible to inject and synergistically enhance the cleaning effect.
また、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５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。 Further, even 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. 5 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.
さらに、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。 Further, 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 and reverse continuous rotation drive mode and the behavior of the laundry that is switched between the left and right in the forward and reverse arc rotation drive mode.
なお、本実施の形態において、噴射口５３、吐出口５５ｄ、入水口５１を左右反転させた構成としても同様の効果がえられる。 In the present embodiment, the same effect can be obtained even when the injection port 53, the discharge port 55d, and the water inlet 51 are reversed left and right.
（実施の形態５）
図９（ａ）は、本発明の実施の形態５におけるドラム式洗濯機の同ドラム式洗濯機の水槽の前面壁を内方より見た平面図を示すものである。図９（ｂ）は、同ドラム式洗濯機の導入路のＬ１−Ｌ１拡大断面図を示すものである。図９（ｃ）は、同ドラム式洗濯機の導入路のＬ２−Ｌ２拡大断面図を示すものである。図９（ｄ）は、同ドラム式洗濯機の導入路のＬ３−Ｌ３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.9 (a) shows the top view which looked at the front wall of the water tank of the drum type washing machine of the drum type washing machine in Embodiment 5 of this invention from the inside. FIG.9 (b) shows the L1-L1 expanded sectional view of the introduction path of the drum type washing machine. FIG.9 (c) shows the L2-L2 expanded sectional view of the introduction path of the drum type washing machine. FIG.9 (d) shows the L3-L3 expanded sectional view of the introduction path of the drum type washing machine. About the same structure as Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.
図９（ａ）に示すように、本実施の形態５では、入水口５１と水槽３の中心軸に対し、左右２箇所に配置された吐出口５５ｄを、それぞれ閉塞された状態でほぼ平面状（前後の凹凸差を極力小さくし）に略Ｕ字に広がる導水路５５ｂでつながっている。ここで図９（ｂ）に示すように正面左側（ここでの正面は図１０の正面視をいう）の導入路５５ｂにおいて、入水口５１近傍の基本断面部と、図９（ｃ）に示すように水槽３の膨出部３ａに設置されたリブ３ｆにおける断面部と、図９（ｄ）に示すように水槽３の膨出部３ａの屈曲部手前で、且つ膨出部３ａの溝幅が前述の基本断面部より狭幅の断面部があり、各々の断面における断面積をＳ５５ｂ（Ｌ１）、Ｓ５５ｂ（Ｌ２）、Ｓ５５ｂ（Ｌ３）とする。 As shown in FIG. 9A, in the fifth embodiment, the discharge ports 55d arranged at two positions on the left and right sides with respect to the central axis of the water inlet 51 and the water tank 3 are substantially planar in a closed state. It is connected by a water conduit 55b that extends in a substantially U-shape (reducing the difference in unevenness between the front and rear as much as possible). Here, as shown in FIG. 9 (b), in the introduction path 55b on the left side of the front (the front here refers to the front view of FIG. 10), the basic cross section near the water inlet 51 and shown in FIG. 9 (c). As shown in FIG. 9D, the groove width of the bulging portion 3a is in front of the bent portion of the bulging portion 3a of the tub 3 as shown in FIG. 9 (d). However, there are cross-sectional portions narrower than the aforementioned basic cross-sectional portions, and the cross-sectional areas in each cross-section are S55b (L1), S55b (L2), and S55b (L3).
Ｓ５５ｂ（Ｌ１）＞Ｓ５５ｂ（Ｌ２）、Ｓ５５ｂ（Ｌ１）＞Ｓ５５ｂ（Ｌ３）が成り立つ場合、入水口５１から正面左側の吐出口５５ｄまでに生じる洗濯水の流水圧力は、Ｓ５５ｂ（Ｌ１）の断面積をもつ基本断面部では殆ど変わらないが、リブ３ｆにおける断面部や膨出部３ａの溝幅が基本断面部より狭幅の断面部においては洗濯水の流水圧力が大きくなり、入水口５１から正面左側の導水路５５ｂを経由し、吐出口５５ｄから吐出し噴射口５３から噴出される洗濯水の噴射は、断面積Ｓ５５ｂ（Ｌ１）＝Ｓ５５ｂ（Ｌ２）＝Ｓ５５ｂ（Ｌ３）の場合より強まった勢いで洗濯物に噴射できる。 When S55b (L1)> S55b (L2) and S55b (L1)> S55b (L3) are satisfied, the washing water flowing pressure generated from the water inlet 51 to the left outlet 55d is the cross-sectional area of S55b (L1). However, in the cross section of the rib 3f and the groove width of the bulging portion 3a is narrower than that of the basic cross section, the flowing water pressure of the washing water increases and the front of the water inlet 51 The washing water ejected from the ejection port 55d and ejected from the ejection port 53 via the left water conduit 55b has a stronger momentum than the case of the cross-sectional area S55b (L1) = S55b (L2) = S55b (L3). Can be sprayed on the laundry.
さらに、Ｓ５５ｂ（Ｌ１）＞Ｓ５５ｂ（Ｌ２）＞Ｓ５５ｂ（Ｌ３）＞Ｓ５５ｄの断面積、という構成にすれば、正面左側の吐出口５５ｄを経由して噴射口５３から噴射される洗濯水はさらに強まった勢いで洗濯物に噴射できる。 Further, if the cross-sectional area of S55b (L1)> S55b (L2)> S55b (L3)> S55d is adopted, the washing water injected from the injection port 53 via the discharge port 55d on the left side of the front is further strengthened. Can be sprayed onto the laundry at a rapid pace.
図１０によれば、シャワー形状Ａ‘のようにシャワーＡより若干下方向に、かつ若干拡がりを有した角度で噴射することに対し、上記構成により、正面から見て左側の噴射口５３からの洗濯水は、シャワー形状Ａのようにシャワー形状Ａ‘に比べて上方向に、かつやや直線状で拡がりを抑えた角度で噴射することができる。すなわち、導水路５５ｂの経路内の断面積を変化させることにより、導水路の流水圧、流水速度、流水流量を自在に変化させることを実現可能とし、その結果噴射口からの洗濯水の噴射において回転ドラムの回転軸に対する噴射角度、噴射幅や拡がり角度も調整することが可能となる。 According to FIG. 10, in contrast to the shower shape A ′, the jetting is performed slightly downward from the shower A and at an angle having a slight spread. The washing water can be sprayed upward as compared to the shower shape A ′ as in the shower shape A, and at an angle that is slightly straight and restrained from spreading. That is, by changing the cross-sectional area in the channel of the water conduit 55b, it is possible to freely change the water flow pressure, the water flow speed, and the water flow rate of the water conduit, and as a result, in the washing water injection from the injection port It is also possible to adjust the injection angle, the injection width, and the spread angle with respect to the rotation axis of the rotary drum.
なお、本実施の形態において、噴射口５３、吐出口５５ｄ、入水口５１を左右反転させた構成としても同様の効果がえられる。 In the present embodiment, the same effect can be obtained even when the injection port 53, the discharge port 55d, and the water inlet 51 are reversed left and right.
本発明にかかるドラム式洗濯機は、低容量や高容量の洗濯物それぞれに最適な噴射角度や拡がり角度を設けることが可能になり、洗浄効果を高め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 can provide an optimum spray angle and spread angle for each of low-capacity and high-capacity laundry, and can improve the cleaning effect. The rotating drum formed in the above is installed in the water tank so that the rotation axis direction is horizontal or inclined downward from the horizontal direction from the opening front side to the bottom rear side, and the rotation drum is driven to rotate. Thus, the present invention is useful as a drum-type washing machine for washing laundry stored in a rotating drum.
２ 洗濯機本体
３ 水槽
３ａ 膨出部
３ｈ 前端壁
３ｆ リブ
４ 回転ドラム
４ｂ 前端壁
５ 開閉扉
６ モータ
７ 給水系
８ 排水系
９ 乾燥系
１３ 開口
１４ シール材
１６ 水循環系
１６ｂ 吐出側経路
１９ 排水弁
２０ 循環ポンプ
４９ 傾斜部
５０ 端部
５１ 入水口
５２ 流路
５３ 噴射口
５４ 開口
５５ カバー
５５ａ パッキン
５５ｂ 導水路
５５ｃ 切欠き部
５５ｄ 吐出口
５６ 案内面
DESCRIPTION OF SYMBOLS 2 Washing machine main body 3 Water tank 3a Expansion part 3h Front end wall 3f Rib 4 Rotating drum 4b Front end wall 5 Opening / closing door 6 Motor 7 Water supply system 8 Drainage system 9 Drying system 13 Opening 14 Sealing material 16 Water circulation system 16b Discharge side path 19 Drain valve DESCRIPTION OF SYMBOLS 20 Circulation pump 49 Inclined part 50 End part 51 Water inlet 52 Flow path 53 Injecting port 54 Opening 55 Cover 55a Packing 55b Water guideway 55c Notch part 55d Discharge port 56 Guide surface
Claims (7)
7. The drum type washing machine according to claim 6, wherein the cross-sectional area of the water conduit that branches the water inlet and the two or more outlets is made smaller as it approaches the outlet.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009206632A JP4973707B2 (en) | 2009-09-08 | 2009-09-08 | Drum washing machine |
| TW99127968A TWI417436B (en) | 2009-09-08 | 2010-08-20 | Drum type washing machine |
| CN2010205255038U CN201785630U (en) | 2009-09-08 | 2010-09-08 | Drum washing machine |
| CN2010102789019A CN102011289B (en) | 2009-09-08 | 2010-09-08 | Drum type washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009206632A JP4973707B2 (en) | 2009-09-08 | 2009-09-08 | Drum washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2011055923A true JP2011055923A (en) | 2011-03-24 |
| JP4973707B2 JP4973707B2 (en) | 2012-07-11 |
Family
ID=43817604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009206632A Active JP4973707B2 (en) | 2009-09-08 | 2009-09-08 | Drum washing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4973707B2 (en) |
| CN (2) | CN201785630U (en) |
| TW (1) | TWI417436B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013035277A1 (en) * | 2011-09-05 | 2013-03-14 | パナソニック株式会社 | Drum-type washing machine |
| CN103562459A (en) * | 2011-04-14 | 2014-02-05 | Lg电子株式会社 | Method for washing |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4973707B2 (en) * | 2009-09-08 | 2012-07-11 | パナソニック株式会社 | Drum washing machine |
| CN110387705B (en) * | 2018-04-16 | 2022-04-15 | 青岛海尔洗涤电器有限公司 | Roller washing machine and spraying system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10328488A (en) * | 1997-06-05 | 1998-12-15 | Matsushita Electric Ind Co Ltd | Washing machine |
| JP2007082784A (en) * | 2005-09-22 | 2007-04-05 | 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1282275B1 (en) * | 1995-12-06 | 1998-03-16 | Electrolux Zanussi Elettrodome | WASHING MACHINE WITH LOW CONSUMPTION RINSE CYCLES |
| JP3436644B2 (en) * | 1996-10-30 | 2003-08-11 | シャープ株式会社 | Drum type washing machine |
| JP4972369B2 (en) * | 2006-09-20 | 2012-07-11 | 日立アプライアンス株式会社 | Drum washing machine |
| JP4973707B2 (en) * | 2009-09-08 | 2012-07-11 | パナソニック株式会社 | Drum washing machine |
-
2009
- 2009-09-08 JP JP2009206632A patent/JP4973707B2/en active Active
-
2010
- 2010-08-20 TW TW99127968A patent/TWI417436B/en active
- 2010-09-08 CN CN2010205255038U patent/CN201785630U/en not_active Expired - Lifetime
- 2010-09-08 CN CN2010102789019A patent/CN102011289B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10328488A (en) * | 1997-06-05 | 1998-12-15 | Matsushita Electric Ind Co Ltd | Washing machine |
| JP2007082784A (en) * | 2005-09-22 | 2007-04-05 | 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 (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103562459A (en) * | 2011-04-14 | 2014-02-05 | Lg电子株式会社 | Method for washing |
| EP2698463A2 (en) * | 2011-04-14 | 2014-02-19 | LG Electronics Inc. | Method for washing |
| EP2698463A4 (en) * | 2011-04-14 | 2015-04-15 | Lg Electronics Inc | Method for washing |
| AU2012243649B2 (en) * | 2011-04-14 | 2016-01-28 | Lg Electronics Inc. | Method for washing |
| US9512550B2 (en) | 2011-04-14 | 2016-12-06 | Lg Electronics Inc. | Method for washing |
| US9534331B2 (en) | 2011-04-14 | 2017-01-03 | Lg Electronics Inc. | Washer |
| US9765465B2 (en) | 2011-04-14 | 2017-09-19 | Lg Electronics Inc. | Washer |
| US10077523B2 (en) | 2011-04-14 | 2018-09-18 | Lg Electronics Inc. | Method for washing utilizing quantity of laundry |
| WO2013035277A1 (en) * | 2011-09-05 | 2013-03-14 | パナソニック株式会社 | Drum-type washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102011289B (en) | 2012-10-17 |
| CN102011289A (en) | 2011-04-13 |
| JP4973707B2 (en) | 2012-07-11 |
| CN201785630U (en) | 2011-04-06 |
| TW201113407A (en) | 2011-04-16 |
| TWI417436B (en) | 2013-12-01 |
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