JP6538377B2 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
JP6538377B2
JP6538377B2 JP2015048306A JP2015048306A JP6538377B2 JP 6538377 B2 JP6538377 B2 JP 6538377B2 JP 2015048306 A JP2015048306 A JP 2015048306A JP 2015048306 A JP2015048306 A JP 2015048306A JP 6538377 B2 JP6538377 B2 JP 6538377B2
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water tank
diameter
outer diameter
rotary
balance ring
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JP2016168097A (en
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恭雄 池田
恭雄 池田
久野　功二
功二 久野
貞人 椎橋
貞人 椎橋
佑太 長野
佑太 長野
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Toshiba Lifestyle Products and Services Corp
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Toshiba Lifestyle Products and Services Corp
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Priority to JP2015048306A priority Critical patent/JP6538377B2/en
Priority to CN201610105308.1A priority patent/CN105970553B/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Description

本発明の実施形態は、洗濯機に関する。   Embodiments of the present invention relate to a washing machine.

例えばドラム式の洗濯機においては、軸方向が前後方向の横向きをなす有底円筒状の水槽内に、軸方向が前後方向の横向きをなす有底円筒状の回転槽（ドラム）が回転可能に設けられている。回転槽は、水槽の後部に設けられたモータにより回転駆動される。   For example, in a drum-type washing machine, a bottomed cylindrical rotary tub (drum) whose axial direction is transversely oriented in the front-rear direction can be rotated in a cylindrical basin whose bottom is cylindrical in which the axial direction is transversely directed in the longitudinal direction. It is provided. The rotary tank is rotationally driven by a motor provided at the rear of the water tank.

特開２０１０−５７７８８号公報JP, 2010-57788, A

この種の洗濯機においては、近年、洗濯容量を大きくする大容量化が要望されている。しかし、洗濯機の外殻ごと大きくした場合には、洗濯機の設置スペースも大きくなってしまうため、外殻の大型化はせずに、大容量化をすることが望まれる。   In this type of washing machine, in recent years, there is a demand for increasing the capacity to increase the washing capacity. However, when the size of the outer shell of the washing machine is increased, the installation space of the washing machine is also increased. Therefore, it is desirable to increase the capacity without increasing the size of the outer shell.

そこで、外殻の大型化はせずに洗濯容量を大きくでき、しかも水槽と回転槽との間の隙間を確保できて安全性を確保することができる洗濯機を提供する。   Therefore, the present invention provides a washing machine which can increase the washing capacity without increasing the size of the outer shell and can secure a gap between the water tank and the rotating tank, thereby securing safety.

本実施形態の洗濯機は、有底円筒状をなす水槽本体の開口部側に水槽カバーを連結して構成される水槽と、この水槽内に底部の回転軸を中心に回転可能に収容され円筒状をなす胴体の開口部側の端部に環状のバランスリングが設けられた回転槽と、を備え、回転槽の回転時に当該回転槽は回転軸から離れたバランスリング側が傾斜する。水槽本体は、筒部と、筒部の前端部に内径が筒部の内径より径大となるように形成されている径大段部と、を備える。水槽カバーは、後部側が開口した嵌合凹部を備え、径大段部の先端部を嵌合凹部に挿入して嵌合させることにより水槽本体の前部に連結される。水槽は、嵌合凹部の内側を形成する内側延長部の先端部と径大段部の基端部とで形成される水槽本体と水槽カバーの繋ぎ目付近の内径が他の部分より大きく形成されている。回転槽の胴体は、外径がバランスリングの外径より大きい径大部を有するとともに、その径大部からバランスリングとの連結部分に向けて外径が小さくなるように変化する外径変化部を有している。そして、胴体にあって外径が最大となる前記径大部から前記外径変化部に変わる起点部が、水槽本体と水槽カバーの繋ぎ目付近に対応する位置に配置されている。 The washing machine according to the present embodiment includes a water tank configured by connecting a water tank cover to the opening side of a bottomed cylindrical water tank main body, and a cylinder rotatably housed in the water tank around a rotation axis of the bottom. And a rotary tub provided with an annular balance ring at an end on the opening side of the body, wherein the rotary tub is inclined at the balance ring side away from the rotary shaft when the rotary tub is rotated. The water tank main body includes a cylindrical portion, and a large-diameter step portion formed at the front end of the cylindrical portion so that the inner diameter is larger than the inner diameter of the cylindrical portion. The water tank cover has a fitting recess opened at the rear side, and is connected to the front of the water tank main body by inserting and fitting the tip of the large diameter step portion into the fitting recess. In the water tank, the inner diameter in the vicinity of the joint between the water tank main body and the water tank cover formed by the tip of the inner extension forming the inside of the fitting recess and the base end of the large diameter step is formed larger ing. The body of the rotary tank has a large diameter portion whose outer diameter is larger than the outer diameter of the balance ring, and the outer diameter change portion changes so that the outer diameter decreases from the large diameter portion toward the connection portion with the balance ring. have. And the starting point part which changes to the said outer diameter change part from the said large diameter part which exists in a fuselage | body and whose outer diameter becomes the largest is arrange | positioned in the position corresponding to joint area vicinity of a water tank main body and a water tank cover.

第１実施形態による洗濯機の概略構成を示す縦断側面図Longitudinal side view showing a schematic configuration of a washing machine according to a first embodiment 水槽および回転槽の上部部分を示す縦断側面図Longitudinal side view showing the water tank and the upper part of the rotating tank 水槽および回転槽の上部部分を拡大して示す縦断側面図Longitudinal side view showing the water tank and the upper part of the rotating tank in an enlarged manner 第２実施形態における水槽および回転槽の上部部分を拡大して示す縦断側面図Longitudinal side view which expands and shows the water tank in 2nd Embodiment, and the upper part of a rotation tank 第３実施形態における水槽および回転槽の上部部分を拡大して示す縦断側面図Longitudinal side view which expands and shows the water tank in 3rd Embodiment, and the upper part of a rotation tank 第４実施形態における水槽および回転槽の上部部分を拡大して示す縦断側面図Longitudinal side view which expands and shows the water tank and upper part of a rotation tank in 4th Embodiment

以下、複数の実施形態による洗濯機について図面を参照しながら説明する。なお、各実施形態において実質的に同一の構成部位には同一の符号を付し、説明を省略する。
（第１実施形態）
第１実施形態について図１から図３を参照して説明する。まず図１において、洗濯機１は、洗濯機能と乾燥機能を備えたドラム式の洗濯乾燥機である。この洗濯機１の外殻を構成する外箱２は、ほぼ矩形の箱状をなしている。外箱２の前面部２ａ（図１において左側の面）は前下がりのやや傾斜状に形成されていて、この前面部２ａに洗濯物出入口３が形成されているとともに、この洗濯物出入口３を開閉する扉４が回動可能に設けられている。 Hereinafter, washing machines according to a plurality of embodiments will be described with reference to the drawings. In each of the embodiments, substantially the same components are denoted by the same reference numerals and descriptions thereof will be omitted.
First Embodiment
The first embodiment will be described with reference to FIGS. 1 to 3. First, in FIG. 1, the washing machine 1 is a drum-type washing / drying machine having a washing function and a drying function. An outer box 2 constituting an outer shell of the washing machine 1 has a substantially rectangular box shape. The front portion 2a (left side surface in FIG. 1) of the outer box 2 is formed to be slightly inclined forward and downward, and the laundry entrance 3 is formed on the front portion 2a. A door 4 that opens and closes is rotatably provided.

外箱２内には水槽５が配設されている。この水槽５は、円筒状をなす筒部６ａの後部側の底面部６ｂが閉塞された有底円筒状をなす水槽本体６と、この水槽本体６の前面開口部側に連結された環状をなす水槽カバー７とを連結して構成されている。水槽５は、これの軸線方向を前後方向に向け、かつ前上がりのやや傾斜状態となるように、サスペンション８を介して弾性的に支持されている。水槽カバー７は、円筒状をなす筒部７ａの前部に内方へ張り出す張出し部７ｂを一体に有していて、張出し部７ｂの中央部に前面開口部９を有している。水槽カバー７の前部と外箱２の前面部２ａの裏側との間には環状をなすべローズ１０が設けられていて、水槽カバー７の前面開口部９は洗濯物出入口３と連通している。   A water tank 5 is disposed in the outer case 2. The water tank 5 has a bottomed cylindrical water tank main body 6 in which a bottom surface 6b on the rear side of the cylindrical cylinder 6a is closed, and an annular shape connected to the front opening of the water tank main body 6 The water tank cover 7 is connected. The water tank 5 is elastically supported via the suspension 8 in such a manner that the axial direction of the water tank 5 is directed in the front-rear direction, and the water tank 5 is inclined slightly upward. The water tank cover 7 integrally has a projecting portion 7b projecting inward at a front portion of a cylindrical cylindrical portion 7a, and has a front opening 9 at the central portion of the projecting portion 7b. An annular slide rose 10 is provided between the front of the water tank cover 7 and the back side of the front part 2 a of the outer box 2, and the front opening 9 of the water tank cover 7 communicates with the laundry entrance 3. There is.

ここで、水槽本体６と水槽カバー７の連結部分の構成について図２および図３も参照して説明する。水槽本体６の筒部６ａの前端部には径大段部１１が形成されている。この径大段部１１は、内径が筒部６ａの内径より径大となるように形成されている。水槽カバー７における筒部７ａの後部の外周部側には、後部側が開口した嵌合凹部１２が設けられていて、この嵌合凹部１２の内側を形成する内側延長部１２ａが後方に向けて突出している。そして、水槽本体６の径大段部１１の先端部を、水槽カバー７における嵌合凹部１２に挿入して嵌合させることにより、水槽本体６の前部に水槽カバー７が連結されている。このとき、水槽カバー７における内側延長部１２ａが、水槽本体６の径大段部１１の内側に位置していて、この内側延長部１２ａの先端部と径大段部１１の基端部１１ａの付近を、水槽本体６と水槽カバー７の繋ぎ目１３としている。   Here, the structure of the connection part of the water tank main body 6 and the water tank cover 7 will be described with reference to FIGS. 2 and 3 as well. A large diameter step 11 is formed at the front end of the cylindrical portion 6 a of the water tank main body 6. The large diameter step portion 11 is formed such that the inner diameter is larger than the inner diameter of the cylindrical portion 6a. On the outer peripheral side of the rear portion of the cylindrical portion 7a of the water tank cover 7, a fitting recess 12 opened on the rear side is provided, and an inner extension 12a forming the inside of the fitting recess 12 protrudes rearward. ing. The water tank cover 7 is connected to the front of the water tank main body 6 by inserting and fitting the tip of the large diameter step 11 of the water tank main body 6 into the fitting recess 12 of the water tank cover 7. At this time, the inner extension 12a of the water tank cover 7 is located inside the large diameter step 11 of the water tank main body 6, and the distal end of the inner extension 12a and the base end 11a of the large diameter step 11 The vicinity is taken as the joint 13 of the water tank main body 6 and the water tank cover 7.

この場合、合成樹脂製の水槽本体６の筒部６ａの内周面６ｃは、成形時の型抜きの関係で、底面部６ｂ側より前面開口部側が径大となるように抜き勾配が形成されている。また、合成樹脂製の水槽カバー７における筒部７ａの内周面７ｃは、同じく成形時の型抜きの関係で、前部側より後面開口部側が径大となるように抜き勾配が形成されている。このため、水槽５において、水槽本体６の筒部６ａと水槽カバー７の筒部７ａとの連結部分である前記繋ぎ目１３付近の内径は、他の部分より大きく形成されている。   In this case, the inner peripheral surface 6c of the cylindrical portion 6a of the water tank main body 6 made of synthetic resin is formed with a draft so that the diameter of the front opening is larger than that of the bottom 6b ing. Further, the inner peripheral surface 7c of the cylindrical portion 7a in the water tank cover 7 made of synthetic resin is also formed with a draft so that the diameter of the rear surface opening side is larger than that of the front side due to the mold release relationship during molding. There is. For this reason, in the water tank 5, an inner diameter near the joint 13 which is a connection portion between the cylindrical portion 6a of the water tank main body 6 and the cylindrical portion 7a of the water tank cover 7 is formed larger than other portions.

水槽５内には、ドラムを構成する回転槽１５が回転可能に配設されている。回転槽１５は、円筒状をなす胴体１６と、この胴体１６の後部を閉塞するように設けられた底部部材１７と、胴体１６の前面開口部側の端部に設けられた環状のバランスリング１８により、後部側が閉塞された有底円筒状をなしている。この回転槽１５も、水槽５と同様に、軸線方向を前後方向に向け、かつ前上がりのやや傾斜状態となるように配置されている。バランスリング１８は、内部に液体が封入される液体バランサにより構成されている。バランスリング１８の開口部１８ａが、水槽５の前面開口部９を通して洗濯物出入口３に連通している。回転槽１５内には、洗濯物出入口３、水槽５の前面開口部９およびバランスリング１８の開口部１８ａを通して洗濯物が出し入れ可能に収容される。   In the water tank 5, a rotating tank 15 constituting a drum is rotatably disposed. The rotation tank 15 has a cylindrical body 16, a bottom member 17 provided to close the rear of the body 16, and an annular balance ring 18 provided at the front opening side end of the body 16. Thus, it has a bottomed cylindrical shape whose rear side is closed. As in the case of the water tank 5, the rotary tank 15 is also arranged so that the axial direction is directed in the front-rear direction, and is slightly inclined upward. The balance ring 18 is constituted by a liquid balancer in which the liquid is sealed. The opening 18 a of the balance ring 18 communicates with the laundry entrance 3 through the front opening 9 of the water tank 5. The laundry can be accommodated in the rotary tub 15 through the laundry inlet 3, the front opening 9 of the water tank 5 and the opening 18 a of the balance ring 18.

回転槽１５における底部部材１７の後面側の中央部には、回転軸１９の前端部が連結されている。回転軸１９の後端部は、水槽５の閉塞部５ｂの中央部に設けられた軸受ハウジング２０を貫通して後方へ突出している。回転軸１９は、軸受ハウジング２０内に設けられた軸受２１により回転自在に支持されている。回転軸１９の後端部は、モータ２２におけるロータ２３に一体回転するように連結されている。モータ２２のステータ２４は、軸受ハウジング２０の外周部に固定状態に設けられている。モータ２２は、ステータ２４と、このステータ２４に対して回転されるロータ２３を備えており、この場合、アウターロータ形のＤＣブラシレスモータにより構成されている。したがって、回転槽１５は、モータ２２のロータ２３により直接回転駆動される構成となっている。   A front end portion of the rotation shaft 19 is connected to a central portion on the rear surface side of the bottom member 17 in the rotation tank 15. The rear end portion of the rotary shaft 19 penetrates a bearing housing 20 provided at the center of the closed portion 5 b of the water tank 5 and protrudes rearward. The rotating shaft 19 is rotatably supported by a bearing 21 provided in a bearing housing 20. The rear end of the rotating shaft 19 is connected to the rotor 23 of the motor 22 so as to rotate integrally. The stator 24 of the motor 22 is fixed to the outer peripheral portion of the bearing housing 20. The motor 22 includes a stator 24 and a rotor 23 rotated with respect to the stator 24. In this case, the motor 22 is constituted by an outer rotor type DC brushless motor. Therefore, the rotation tank 15 is configured to be driven to rotate directly by the rotor 23 of the motor 22.

ここで、回転槽１５の胴体１６は、例えばステンレス鋼板を円筒状に形成したもので、後端部に底部部材１７がねじ止めにより連結され、前端部にバランスリング１８がねじ止めにより連結されている。底部部材１７の外径寸法とバランスリング１８の外径寸法はほぼ同じに設定されている。そして、胴体１６は、これの前後方向の中間部に、これら底部部材１７およびバランスリング１８よりも外径が大きな径大部２５を有している。したがって、胴体１６は、バランスリング１８および底部部材１７が連結された前後の両端部よりも前後の中間部が径大に形成された、いわゆる中膨れ状態に形成されていて、エクスパンドドラムと称される形態をなしている。   Here, the body 16 of the rotation tank 15 is, for example, a stainless steel plate formed in a cylindrical shape, the bottom member 17 is connected by screwing to the rear end, and the balance ring 18 is connected by screwing to the front end. There is. The outer diameter of the bottom member 17 and the outer diameter of the balance ring 18 are set to be substantially the same. The body 16 has a large diameter portion 25 having an outer diameter larger than that of the bottom member 17 and the balance ring 18 at an intermediate portion in the longitudinal direction of the body 16. Therefore, the body 16 is formed in a so-called semi-inflated state in which the middle part before and after the both ends before and after the balance ring 18 and the bottom member 17 are connected is formed in a so-called bulging state Form.

胴体１６において、これの前部には、径大部２５からバランスリング１８との連結部分に向けて外径が次第に小さくなるように変化する外径変化部２６が形成され、また、後部にも、径大部２５から底部部材１７との連結部分に向けて外径が次第に小さくなるように変化する外径変化部２７が形成されている。前部の外径変化部２６および後部の外径変化部２７は、ともにテーパ状に形成されている。   An outer diameter changing portion 26 is formed at the front of the body 16 such that the outer diameter gradually decreases from the large diameter portion 25 to the connecting portion with the balance ring 18, and also at the rear An outer diameter changing portion 27 is formed so that the outer diameter gradually decreases from the large diameter portion 25 toward the connecting portion with the bottom member 17. The front outer diameter changing portion 26 and the rear outer diameter changing portion 27 are both tapered.

この場合、胴体１６において、最大外径部となる径大部２５から前部の外径変化部２６に変わる起点部２８は、前記水槽本体６と水槽カバー７の繋ぎ目１３近傍に配置されている。また、胴体１６において、最大外径部となる径大部２５から後部の外径変化部２７に変わる起点部２９は、水槽本体６の底部寄りに配置されている。   In this case, in the body 16, the starting point portion 28 which changes from the large diameter portion 25 to be the largest outer diameter portion to the outer diameter changing portion 26 at the front portion is disposed near the joint 13 of the water tank main body 6 and the water tank cover 7 There is. Further, in the body 16, the starting point portion 29 which is changed from the large diameter portion 25 which is the largest outer diameter portion to the outer diameter changing portion 27 at the rear is disposed closer to the bottom portion of the water tank main body 6.

また、胴体１６において、径大部２５と前部の外径変化部２６とが形成する角度をα、径大部２５と後部の外径変化部２７とが形成する角度をβとすると、角度αを角度βよりも大きく設定している。胴体１６における前部側の外径変化部２６の外面と水槽５の内面との間には、断面がほぼ三角形の空間部３０が形成されている。また、胴体１６における後部側の外径変化部２７の外面と水槽５の内面との間にも、空間部３１が形成されている。   Further, in the body 16, an angle formed by the large diameter portion 25 and the outer diameter changing portion 26 at the front portion is α, and an angle formed by the large diameter portion 25 and the outer diameter changing portion 27 at the rear portion is β. α is set larger than the angle β. A space 30 having a substantially triangular cross section is formed between the outer surface of the outer diameter changing portion 26 on the front side of the body 16 and the inner surface of the water tank 5. A space 31 is also formed between the outer surface of the outer diameter changing portion 27 on the rear side of the body 16 and the inner surface of the water tank 5.

胴体１６において、径大部２５部分、および前部の外径変化部２６部分には、脱水用の孔部３３が複数個形成されている。各孔部３３はバーリング加工により形成されたものであり、各孔部３３の周縁部には、胴体１６の外面側へ突出する立上がり部３４（図３参照）が形成されている。孔部３３は、洗濯運転時には水槽５内の水が通過する通水孔として機能し、乾燥運転時には乾燥用の空気が通過する通気孔として機能する。   In the body 16, a plurality of holes 33 for dehydration are formed in the large diameter portion 25 and the outer diameter changing portion 26 in the front portion. Each hole 33 is formed by burring, and a rising portion 34 (see FIG. 3) projecting to the outer surface side of the body 16 is formed at the peripheral edge of each hole 33. The hole 33 functions as a water passage through which the water in the water tank 5 passes during the washing operation, and functions as a vent through which the drying air passes during the drying operation.

本実施形態の洗濯乾燥機においては、図示はしないが循環風路が設けられる。この循環風路は、水槽５の外側でかつ外箱２内に位置させて設けられるもので、一端部が水槽５の上部の前部に設けられた排気口３５（図２の二点鎖線参照）に接続され、他端部が水槽５の閉塞部６ｂに設けられた図示しない給気口に接続される。この場合、排気口３５は、図２に示すように、回転槽１５における胴体１６の前部側の前記外径変化部２６に臨む位置に位置させていて、前記空間部３０に連通している。   In the washing and drying machine of the present embodiment, a circulation air passage is provided although not shown. The circulation air passage is provided outside the water tank 5 and in the outer case 2 and has an end portion provided at the front of the upper part of the water tank 5 (see the two-dot chain line in FIG. 2). And the other end is connected to a not-shown air supply port provided in the closed portion 6 b of the water tank 5. In this case, as shown in FIG. 2, the exhaust port 35 is located at a position facing the outer diameter changing portion 26 on the front side of the body 16 in the rotary tank 15 and communicates with the space 30. .

循環風路には、水槽５内ひいては回転槽１５内の空気を当該循環風路を通して循環させる送風機と、回転槽１５内に収容された洗濯物を乾燥させるための乾燥手段が設けられる。乾燥手段としては、循環風路内を通る空気を加熱する加熱手段と、循環風路内を通る空気の除湿を行う除湿手段を備えたもので、例えば冷凍サイクルにより構成されるヒートポンプが用いられる。そのヒートポンプにおける凝縮器が加熱手段として用いられ、蒸発器が除湿手段として用いられる。   The circulation air passage is provided with a blower for circulating the air in the water tank 5 and in the rotation tank 15 through the circulation air passage, and a drying means for drying the laundry stored in the rotation tank 15. As the drying means, a heating means for heating the air passing through the circulation air passage and a dehumidifying means for dehumidifying the air passing through the circulation air passage are used. For example, a heat pump constituted by a refrigeration cycle is used. The condenser in the heat pump is used as a heating means, and the evaporator is used as a dehumidifying means.

上記構成においては、次のような作用効果を得ることができる。
洗濯物を収容する回転槽１５において、胴体１６は、バランスリング１８および底部部材１７よりも径大な径大部２５を有している。回転槽１５としては、その径大部２５を有する分、洗濯物を収容可能な洗濯容量を大きくできる。 In the above configuration, the following effects can be obtained.
In the rotary tub 15 for containing the laundry, the body 16 has a large-diameter portion 25 larger in diameter than the balance ring 18 and the bottom member 17. As the rotation tank 15 has a large diameter portion 25, the washing capacity capable of containing the laundry can be increased.

ここで、特に、湿った洗濯物を収容した回転槽１５を高速回転させる脱水運転時においては、洗濯物の偏りなどを要因として、回転槽１５は、底部の回転軸１９を支点にして当該回転軸１９から離れた前部のバランスリング１８側が傾斜する状態が発生する。これを脱水槽（回転槽１５）の倒れ」という。特に、水槽５内の温度が高いと回転槽１５の倒れが大きくなり、この倒れのために水槽５の内面と回転槽１５の外面との間の隙間を確保する必要がある。   Here, particularly in the dewatering operation in which the rotating tub 15 containing the damp laundry is rotated at a high speed, the rotating tub 15 rotates with the rotary shaft 19 at the bottom as a fulcrum, due to the bias of the laundry. A situation occurs in which the front balance ring 18 side away from the axis 19 is inclined. This is referred to as falling of the dewatering tank (rotary tank 15). In particular, when the temperature in the water tank 5 is high, the falling of the rotating tank 15 becomes large, and it is necessary to secure a gap between the inner surface of the water tank 5 and the outer surface of the rotating tank 15 for this falling.

回転槽１５において、胴体１６に径大部２５を設けた構成とした場合、その径大部２５の外面と水槽５の内面との間の隙間が狭まり、回転槽１５の回転時に径大部２５が水槽５の内面に衝突することが懸念されるが、本実施形態においては、次の理由により、そのような懸念を極力解消できる。すなわち、水槽５における水槽本体６は合成樹脂製であり、前述したように、この水槽本体６の筒部６ａの内周面６ｃは、成形時の型抜きの関係で、底面部６ｂ側より前面開口部側が径大となるように抜き勾配が形成されている。また、合成樹脂製の水槽カバー７における筒部７ａの内周面７ｃは、同じく成形時の型抜きの関係で、前部側より後面開口部側が径大となるように抜き勾配が形成されている。このため、水槽５において、水槽本体６の筒部６ａと水槽カバー７の筒部７ａとの連結部分である前記繋ぎ目１３付近の内径は、他の部分より大きく形成されている。   When the large-diameter portion 25 is provided in the body 16 of the rotary tank 15, the gap between the outer surface of the large-diameter portion 25 and the inner surface of the water tank 5 narrows, and the large-diameter portion 25 is rotated when the rotary tank 15 rotates. However, in the present embodiment, such concern can be eliminated as much as possible in the present embodiment for the following reason. That is, the water tank main body 6 in the water tank 5 is made of synthetic resin, and as described above, the inner peripheral surface 6c of the cylindrical portion 6a of the water tank main body 6 is frontal from the bottom surface portion 6b The draft is formed such that the diameter of the opening side is increased. Further, the inner peripheral surface 7c of the cylindrical portion 7a in the water tank cover 7 made of synthetic resin is also formed with a draft so that the diameter of the rear surface opening side is larger than that of the front side due to the mold release relationship during molding. There is. For this reason, in the water tank 5, an inner diameter near the joint 13 which is a connection portion between the cylindrical portion 6a of the water tank main body 6 and the cylindrical portion 7a of the water tank cover 7 is formed larger than other portions.

また、回転槽１５は、脱水回転時等に傾斜する場合、前述したように、後部の回転軸１９を支点にして前部側が径方向へ傾斜することになる（図２および図３の二点鎖線の状態参照）。このとき、回転槽１５において、最大外径部となる径大部２５から前部の外径変化部２６に変わる起点部２８が水槽５の内面に最も当たりやすくなる。しかし本実施形態においては、この起点部２８を、水槽５において内径が最も大きく形成された前記繋ぎ目１３付近に対応する位置に位置させているので、その起点部２８と繋ぎ目１３との間には比較的大きな隙間を確保することができる。このため、回転槽１５が回転軸１９を支点にして前部側が径方向へ傾斜し、胴体１６の径大部２５の外面と水槽５の内面との間の隙間が小さくなったとしても、前記起点部２８が水槽５の内面に当たることを極力避けることが可能となり、安全性を確保することが可能となる。   Further, when the rotation tank 15 is inclined at the time of dehydration rotation etc., as described above, the front side is inclined in the radial direction with the rear rotation shaft 19 as a fulcrum (two points in FIGS. 2 and 3 See the state of the dashed line). At this time, in the rotary tank 15, the starting point portion 28 which changes from the large diameter portion 25 which is the largest outer diameter portion to the outer diameter changing portion 26 in the front portion most easily contacts the inner surface of the water tank 5. However, in the present embodiment, since the starting point portion 28 is located at a position corresponding to the vicinity of the joint 13 where the inner diameter is formed the largest in the water tank 5, between the starting point portion 28 and the joint 13 Can have a relatively large gap. For this reason, even if the rotary tank 15 is inclined in the radial direction with the rotary shaft 19 as a fulcrum and the clearance between the outer surface of the large diameter portion 25 of the body 16 and the inner surface of the water tank 5 becomes small, It becomes possible to avoid that the starting point part 28 hits the inner surface of the water tank 5 as much as possible, and it becomes possible to secure safety.

また、回転槽１５の胴体１６における前部側の起点部２８の外面と水槽５の内面との間の隙間をＡ、回転槽１５の胴体１６における前部側の起点部２８より底部側の径大部２５の外面と前記水槽の内面との間の隙間をＢとした場合において、回転槽１５が回転軸１９を支点に傾斜していない場合の初期の前記隙間Ａ，ＢをそれぞれＡ０，Ｂ０とした場合、図３に示すように、隙間Ａ０は隙間Ｂ０より大きくなっている（Ａ０＞Ｂ０）。初期隙間Ａ０は例えば１３ｍｍ、初期隙間Ｂ０はそれよりやや小さく設定されている。   The gap between the outer surface of the starting point 28 on the front side of the body 16 of the rotating tank 15 and the inner surface of the water tank 5 is A, and the diameter of the bottom side of the starting point 28 on the front side of the body 16 of the rotating tank 15 Assuming that the gap between the outer surface of the large part 25 and the inner surface of the water tank is B, the initial gaps A and B when the rotary tank 15 is not inclined with the rotary shaft 19 as a fulcrum are A0 and B0, respectively. In this case, as shown in FIG. 3, the gap A0 is larger than the gap B0 (A0> B0). The initial gap A0 is set to, for example, 13 mm, and the initial gap B0 is set to be slightly smaller than that.

一方、回転槽１５が、脱水回転時等において回転軸１９を支点にして傾斜し胴体１６の外面と水槽５の内面との間の隙間が小さくなったとき（図２および図３の二点鎖線の状態参照）の前記隙間Ａ，ＢをそれぞれＡ１，Ｂ１とした場合、図３に示すように、隙間Ａ１は隙間Ｂ１よりも小さくなる（Ａ１＜Ｂ１）。傾斜時の隙間Ａ１は例えば２ｍｍ、傾斜時の隙間Ｂ１はそれよりやや大きくなっている。   On the other hand, when the rotating tank 15 is inclined with the rotating shaft 19 as a fulcrum during dewatering rotation etc. and the gap between the outer surface of the body 16 and the inner surface of the water tank 5 becomes smaller (two-dot chain line in FIGS. When the gaps A and B in (1) are A1 and B1, respectively, as shown in FIG. 3, the gap A1 is smaller than the gap B1 (A1 <B1). The gap A1 at the time of inclination is, for example, 2 mm, and the gap B1 at the time of inclination is slightly larger than that.

また、上記した実施形態においては、循環風路が接続される水槽５の排気口３３を、回転槽１５における胴体１６の前部の外径変化部２６と水槽５の内面との間に形成される空間部３０に臨む部位に設けた。これによれば、乾燥運転時において、水槽5内の空気が排気口３３を通して循環風路側へ流れ易くできる。   In the embodiment described above, the exhaust port 33 of the water tank 5 to which the circulation air passage is connected is formed between the outer diameter changing portion 26 at the front of the body 16 in the rotating tank 15 and the inner surface of the water tank 5 It is provided at a site facing the space portion 30. According to this, during the drying operation, the air in the water tank 5 can easily flow to the circulating air passage side through the exhaust port 33.

（第２実施形態）
第２実施形態について図４を参照して説明する。この第２実施形態においては、第１実施形態とは次の点が異なっている。すなわち、回転槽１５における胴体１６の径大部２５にあって前部側の起点部２８付近に存する孔部３３の周縁部には、外面側へ突出する立上がり部３４を設けていない。この場合、起点部２８側の２列の孔部３３について、立上がり部３４を設けていない。 Second Embodiment
The second embodiment will be described with reference to FIG. The second embodiment is different from the first embodiment in the following points. That is, the rising portion 34 protruding to the outer surface side is not provided at the peripheral portion of the hole 33 located in the large diameter portion 25 of the body 16 in the rotary tank 15 and near the starting point 28 on the front side. In this case, the rising portions 34 are not provided for the two rows of holes 33 on the side of the starting point portion 28.

このような構成によれば、回転槽１５の胴体１６における前部側の起点部２８付近の径大部２５の外面側への突起部を無くすことができる。これにより、当該起点部２８付近の径大部２５の外面と水槽５の内面との間の隙間を一層確実に確保することが可能になり、回転槽１５が水槽５へ衝突することを一層確実に回避することが可能となる。   According to such a configuration, it is possible to eliminate the projection on the outer surface side of the large diameter portion 25 in the vicinity of the starting point portion 28 on the front side of the body 16 of the rotary tank 15. This makes it possible to more reliably secure the gap between the outer surface of the large diameter portion 25 in the vicinity of the starting point portion 28 and the inner surface of the water tank 5, and it is further ensured that the rotary tank 15 collides with the water tank 5. Can be avoided.

（第３実施形態）
第３実施形態について図５を参照して説明する。この第３実施形態においては、第１および第２実施形態とは次の点が異なっている。すなわち、回転槽１５における胴体１６の径大部２５にあって前部側の起点部２８付近に存する孔部３３の周縁部には、外面側へ突出する立上がり部３７を設けているが、その立上がり部３７の高さを、他の孔部３３の立上がり部３４よりも低く設定している。この実施形態においても、第２実施形態とほぼ同様な作用効果を得ることができる。 Third Embodiment
A third embodiment will be described with reference to FIG. The third embodiment is different from the first and second embodiments in the following point. That is, although the rising portion 37 protruding to the outer surface side is provided at the peripheral portion of the hole 33 located in the large diameter portion 25 of the body 16 in the rotation tank 15 and near the starting point portion 28 on the front side, The height of the rising portion 37 is set to be lower than the rising portions 34 of the other holes 33. Also in this embodiment, substantially the same function and effect as those of the second embodiment can be obtained.

（第４実施形態）
第４実施形態について図６を参照して説明する。この第４実施形態においては、第１実施形態とは次の点が異なっている。すなわち、回転槽１５における胴体１６の前部側の外径変化部２６には、孔部３３を形成していない。 Fourth Embodiment
A fourth embodiment will be described with reference to FIG. The fourth embodiment is different from the first embodiment in the following point. That is, no hole 33 is formed in the outer diameter changing portion 26 on the front side of the body 16 in the rotation tank 15.

この構成によれば、回転槽１５における外径変化部２６と水槽５の内面との間に形成される空間部３０（図６の二点鎖線参照）と回転槽１５内との間の空気の流通がほぼ遮断される形態となるので、回転槽１５の回転時に空間部３０に発生する風圧を大きくできる。これに伴い、空間部３０内の空気を、排気口３５を通して循環風路側へ排出しやすくでき、ひいては乾燥効率の向上を図ることが可能となる。   According to this configuration, the air between the space 30 (see the two-dot chain line in FIG. 6) formed between the outer diameter changing portion 26 in the rotation tank 15 and the inner surface of the water tank 5 and the inside of the rotation tank 15 Since the flow is substantially blocked, the wind pressure generated in the space 30 can be increased when the rotary tank 15 rotates. Accordingly, the air in the space portion 30 can be easily discharged to the circulating air passage side through the exhaust port 35, and as a result, the drying efficiency can be improved.

（その他の実施形態）
洗濯乾燥機を例示したが、乾燥機能のない洗濯機にも適用できる。
ドラム式の洗濯乾燥機を例示したが、水槽および回転槽の軸方向が上下方向に指向した、いわゆる縦型の洗濯機にも適用できる。 (Other embodiments)
Although the washing and drying machine has been illustrated, it can be applied to a washing machine without drying function.
Although the drum-type washing and drying machine has been exemplified, the invention can also be applied to a so-called vertical washing machine in which the axial direction of the water tank and the rotation tank is directed vertically.

以上説明したように、本実施形態によれば、回転槽における胴体は、バランスリングよりも径大な径大部を有しているので、回転槽としては、その径大部を有する分、洗濯物を収容可能な洗濯容量を大きくできる。また、回転槽の胴体にあって外径が最大となる径大部から外径変化部に変わる起点部を、水槽において内径が大きく形成された、水槽本体と水槽カバーの繋ぎ目付近に対応する位置に配置した構成としたことにより、回転槽が底部側を支点にして傾斜し、胴体の径大部の外面と水槽の内面との間の隙間が小さくなったとしても、前記起点部が水槽の内面に当たることを極力避けることが可能となり、安全性を確保することが可能となる。   As described above, according to the present embodiment, since the body in the rotation tank has a large diameter portion having a diameter larger than that of the balance ring, as the rotation tank has a large diameter portion, it is possible to wash It is possible to increase the washing capacity that can accommodate objects. In addition, the starting point in the body of the rotating tank that changes from the large-diameter part where the outer diameter is largest to the outer-diameter changing part corresponds to the vicinity of the joint between the water tank main body and the water tank cover where the inner diameter is formed large in the water tank. Even if the rotation tank is inclined with the bottom side as a fulcrum and the clearance between the outer surface of the large diameter portion of the body and the inner surface of the water tank becomes smaller, the starting point portion is the water tank. It is possible to avoid hitting the inner surface of the case as much as possible, and it is possible to secure the safety.

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。   While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

図面中、１は洗濯機、２は外箱（外殻）、５は水槽、６は水槽本体、７は水槽カバー、１３は繋ぎ目、１５は回転槽、１６は胴体、１７は底部部材、１８はバランスリング、１９は回転軸、２２はモータ、２５は径大部、２６，２７は外径変化部、２８，２９は起点部、３０，３１は空間部、３３は孔部、３４は立上がり部、３５は排気口、３７は立上がり部を示す。   In the drawings, 1 is a washing machine, 2 is an outer box (outer shell), 5 is a water tank, 6 is a water tank body, 7 is a water tank cover, 13 is a joint, 15 is a rotating tank, 16 is a body, 17 is a bottom member, 18 is a balance ring, 19 is a rotating shaft, 22 is a motor, 25 is a large diameter portion, 26 and 27 are outer diameter changing portions, 28 and 29 are starting points, 30, 31 are spaces, 33 are holes, 34 is A rising portion, 35 indicates an exhaust port, and 37 indicates a rising portion.

Claims (6)

有底円筒状をなす水槽本体の開口部側に水槽カバーを連結して構成される水槽と、この水槽内に底部の回転軸を中心に回転可能に収容され円筒状をなす胴体の開口部側の端部に環状のバランスリングが設けられた回転槽と、を備え、前記回転槽の回転時に当該回転槽は前記回転軸から離れた前記バランスリング側が傾斜するものにおいて、
前記水槽本体は、筒部と、前記筒部の前端部に内径が前記筒部の内径より径大となるように形成されている径大段部と、を備え、
前記水槽カバーは、後部側が開口した嵌合凹部を備え、前記径大段部の先端部を前記嵌合凹部に挿入して嵌合させることにより前記水槽本体の前部に連結され、
前記水槽は、前記嵌合凹部の内側を形成する内側延長部の先端部と前記径大段部の基端部とで形成される前記水槽本体と前記水槽カバーの繋ぎ目付近の内径が他の部分より大きく形成され、
前記回転槽の前記胴体は、外径が前記バランスリングの外径より大きい径大部を有するとともに、その径大部から前記バランスリングとの連結部分に向けて外径が小さくなるように変化する外径変化部を有していて、
前記胴体にあって外径が最大となる前記径大部から前記外径変化部に変わる起点部が、前記水槽本体と前記水槽カバーの繋ぎ目付近に対応する位置に配置されている洗濯機。 A water tank constructed by connecting a water tank cover to the opening side of a bottomed cylindrical water tank main body, and the opening side of a cylindrical body rotatably accommodated in the water tank about a rotation axis of the bottom. And a rotary tub provided with an annular balance ring at an end of the rotary tub, the rotary tub being inclined at the balance ring side away from the rotary shaft when the rotary tub is rotated,
The water tank main body includes a cylindrical portion, and a large-diameter step portion formed at the front end portion of the cylindrical portion so that the inner diameter is larger than the inner diameter of the cylindrical portion.
The water tank cover includes a fitting recess opened at the rear side, and is connected to the front of the water tank main body by inserting and fitting the tip of the large diameter step portion into the fitting recess.
In the water tank, the inner diameter near the joint between the water tank main body and the water tank cover formed by the tip of the inner extension forming the inside of the fitting recess and the base end of the large diameter step is another Formed larger than the part,
The body of the rotary tank has a large diameter portion whose outer diameter is larger than the outer diameter of the balance ring, and the outer diameter changes from the large diameter portion toward the connecting portion with the balance ring. Has an outer diameter changer,
The washing machine in which the starting point part which changes in said outer diameter change part from said large diameter part which exists in said body and whose outside diameter becomes the largest is arranged in the position corresponding to the joint vicinity of said water tank main body and said water tank cover. 前記回転槽の前記胴体における前記起点部の外面と前記水槽の内面との間の隙間をＡ、前記回転槽の前記胴体における前記起点部より底部側の外面と前記水槽の内面との間の隙間をＢとした場合において、前記回転槽が底部側を支点にして傾斜し前記胴体の外面と前記水槽の内面との間の隙間が小さくなったとき、前記隙間Ａが前記隙間Ｂより小さくなる請求項１記載の洗濯機。   A space between the outer surface of the starting point portion in the body of the rotating tank and the inner surface of the water tank A, a space between the outer surface on the bottom side of the starting point portion in the body of the rotating tank and the inner surface of the water tank When the rotation tank is inclined with the bottom side as a fulcrum and the gap between the outer surface of the body and the inner surface of the water tank becomes smaller, the gap A becomes smaller than the gap B. The washing machine according to Item 1. 前記回転槽の前記胴体には脱水用の孔部が複数設けられていて、前記胴体の前記径大部にあって前記起点部付近に存する孔部において、当該孔部周縁部に形成されるバーリング加工による立上がり部の高さを他の部分の孔部の立上がり部より低く形成するか、または立上がり部を設けていない請求項１または２記載の洗濯機。   A plurality of holes for dewatering are provided in the body of the rotation tank, and a burring is formed in the peripheral portion of the hole in the hole in the large diameter portion of the body and present in the vicinity of the starting point portion The washing machine according to claim 1 or 2, wherein the height of the raised portion by processing is formed lower than the rising portion of the hole portion of the other portion, or the rising portion is not provided. 前記回転槽の前記胴体には脱水用の孔部が複数設けられ、前記水槽には、前記回転槽の前記胴体にあって前記起点部から前記バランスリングとの連結部分にかけた部分に対応する部位に乾燥用の排気口が設けられていて、
前記回転槽の前記胴体にあって前記外径変化部には、前記脱水用の孔部を設けていない請求項１または２記載の洗濯機。 A plurality of holes for dewatering are provided in the body of the rotary tank, and the water tank is a portion corresponding to a portion of the body of the rotary tank and extending from the starting point to the connection portion with the balance ring. There is a drying outlet on the
The washing machine according to claim 1 or 2, wherein the outer diameter changing portion is not provided with the hole for dewatering in the body of the rotation tank. 有底円筒状をなす水槽本体の開口部側に水槽カバーを連結して構成される水槽と、この水槽内に底部の回転軸を中心に回転可能に収容され円筒状をなす胴体の開口部側の端部に環状のバランスリングが設けられた回転槽と、を備え、前記回転槽の回転時に当該回転槽は前記回転軸から離れた前記バランスリング側が傾斜するものにおいて、A water tank constructed by connecting a water tank cover to the opening side of a bottomed cylindrical water tank main body, and the opening side of a cylindrical body rotatably accommodated in the water tank about a rotation axis of the bottom. And a rotary tub provided with an annular balance ring at an end of the rotary tub, the rotary tub being inclined at the balance ring side away from the rotary shaft when the rotary tub is rotated,
前記水槽は、前記水槽本体と前記水槽カバーの繋ぎ目付近の内径が他の部分より大きく形成され、In the water tank, an inner diameter in the vicinity of a joint between the water tank main body and the water tank cover is formed larger than other portions,
前記回転槽の前記胴体は、外径が前記バランスリングの外径より大きい径大部を有するとともに、その径大部から前記バランスリングとの連結部分に向けて外径が小さくなるように変化する外径変化部を有していて、The body of the rotary tank has a large diameter portion whose outer diameter is larger than the outer diameter of the balance ring, and the outer diameter changes from the large diameter portion toward the connecting portion with the balance ring. Has an outer diameter changer,
前記胴体にあって外径が最大となる前記径大部から前記外径変化部に変わる起点部が、前記水槽本体と前記水槽カバーの繋ぎ目付近に対応する位置に配置され、A starting point that changes from the large-diameter portion to the outer-diameter changing portion where the outer diameter is maximum in the body is disposed at a position corresponding to the vicinity of a joint between the water tank main body and the water tank cover.
前記回転槽の前記胴体には脱水用の孔部が複数設けられていて、前記胴体の前記径大部にあって前記起点部付近に存する孔部において、当該孔部周縁部に形成されるバーリング加工による立上がり部の高さを他の部分の孔部の立上がり部より低く形成するか、または立上がり部を設けていない洗濯機。A plurality of holes for dewatering are provided in the body of the rotation tank, and a burring is formed in the peripheral portion of the hole in the hole in the large diameter portion of the body and present in the vicinity of the starting point portion A washing machine in which the height of the rising portion by processing is formed lower than the rising portion of the hole portion of the other part, or a washing machine without the rising portion. 有底円筒状をなす水槽本体の開口部側に水槽カバーを連結して構成される水槽と、この水槽内に底部の回転軸を中心に回転可能に収容され円筒状をなす胴体の開口部側の端部に環状のバランスリングが設けられた回転槽と、を備え、前記回転槽の回転時に当該回転槽は前記回転軸から離れた前記バランスリング側が傾斜するものにおいて、A water tank constructed by connecting a water tank cover to the opening side of a bottomed cylindrical water tank main body, and the opening side of a cylindrical body rotatably accommodated in the water tank about a rotation axis of the bottom. And a rotary tub provided with an annular balance ring at an end of the rotary tub, the rotary tub being inclined at the balance ring side away from the rotary shaft when the rotary tub is rotated,
前記水槽は、前記水槽本体と前記水槽カバーの繋ぎ目付近の内径が他の部分より大きく形成され、In the water tank, an inner diameter in the vicinity of a joint between the water tank main body and the water tank cover is formed larger than other portions,
前記回転槽の前記胴体は、外径が前記バランスリングの外径より大きい径大部を有するとともに、その径大部から前記バランスリングとの連結部分に向けて外径が小さくなるように変化する外径変化部を有していて、The body of the rotary tank has a large diameter portion whose outer diameter is larger than the outer diameter of the balance ring, and the outer diameter changes from the large diameter portion toward the connecting portion with the balance ring. Has an outer diameter changer,
前記胴体にあって外径が最大となる前記径大部から前記外径変化部に変わる起点部が、前記水槽本体と前記水槽カバーの繋ぎ目付近に対応する位置に配置され、A starting point that changes from the large-diameter portion to the outer-diameter changing portion where the outer diameter is maximum in the body is disposed at a position corresponding to the vicinity of a joint between the water tank main body and the water tank cover.
前記回転槽の前記胴体には脱水用の孔部が複数設けられ、前記水槽には、前記回転槽の前記胴体にあって前記起点部から前記バランスリングとの連結部分にかけた部分に対応する部位に乾燥用の排気口が設けられていて、A plurality of holes for dewatering are provided in the body of the rotary tank, and the water tank is a portion corresponding to a portion of the body of the rotary tank and extending from the starting point to the connection portion with the balance ring. There is a drying outlet on the
前記回転槽の前記胴体にあって前記外径変化部には、前記脱水用の孔部を設けていない洗濯機。A washing machine which is provided in the body of the rotating tank and in which the hole for dehydration is not provided in the outer diameter changing portion.
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