JP2018094069A - Washing machine - Google Patents

Washing machine Download PDF

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JP2018094069A
JP2018094069A JP2016241194A JP2016241194A JP2018094069A JP 2018094069 A JP2018094069 A JP 2018094069A JP 2016241194 A JP2016241194 A JP 2016241194A JP 2016241194 A JP2016241194 A JP 2016241194A JP 2018094069 A JP2018094069 A JP 2018094069A
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Prior art keywords
roller
washing tub
washing
laundry
washing machine
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JP2016241194A
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JP7148221B2 (en
Inventor
パラシリ ラッタロン
Pallasiri RATTARONG
パラシリ ラッタロン
ジッタリー パウィティダ
Jitaree PAWEETHIDA
ジッタリー パウィティダ
ピンダ ソムヨット
Pinda Somyot
ピンダ ソムヨット
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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 JP2016241194A priority Critical patent/JP7148221B2/en
Priority to CN201780076703.4A priority patent/CN110073048B/en
Priority to DE112017006241.1T priority patent/DE112017006241B4/en
Priority to MYPI2019003344A priority patent/MY196610A/en
Priority to PCT/JP2017/020653 priority patent/WO2018109963A1/en
Publication of JP2018094069A publication Critical patent/JP2018094069A/en
Priority to US16/439,424 priority patent/US11365501B2/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

PROBLEM TO BE SOLVED: To move laundry smoothly at a roller portion for a washing machine in which the roller is provided in a washing tub and which can make swirling of cloth favorable.SOLUTION: A washing machine includes: a washing tub in which laundry is stored and washing is performed; a roller provided rotatably at an internal wall part of the washing tub, with an axial direction being a vertical direction, in a state where one part of an outer peripheral wall surface is exposed inside the washing tub, and for facilitating movement of the laundry by rotation; and side part swollen parts provided by being located at both side parts of the roller in the washing tub, connected so as to draw a smooth curve with respect to an exposed outer peripheral wall surface of the roller, and for guiding the laundry smoothly toward the roller.SELECTED DRAWING: Figure 1

Description

本発明の実施形態は、洗濯機に関する。   Embodiments described herein relate generally to a washing machine.

いわゆる縦軸型の洗濯機においては、洗濯槽の底部に設けられたパルセータの上面部に、ローラを回転可能に設けることが考えられている(例えば、特許文献1参照)。この場合、ローラは、2個又は3個が、パルセータ上を半径方向に延びるように配設され、これらローラにより、パルセータ上における洗濯物の布回りを良好にすることができる。   In a so-called vertical type washing machine, it is considered that a roller is rotatably provided on the upper surface of a pulsator provided at the bottom of the washing tub (see, for example, Patent Document 1). In this case, two or three rollers are arranged so as to extend in the radial direction on the pulsator, and these rollers can improve the laundry around the pulsator.

米国特許出願公開第2012/0180532号明細書US Patent Application Publication No. 2012/0180532

上記のようなパルセータ上にローラを設けたものでは、ローラによる洗濯物の移動効果は、パルセータ上に一部の区域に及ぶに止まり、洗濯槽内の洗濯物の布量が多い場合には、洗濯物の布回りの向上の効果がさほど得られなくなる。そこで、ローラを、パルセータ上でなく洗濯槽の内側壁部に縦方向に設けることが考えられる。   In the case where a roller is provided on the pulsator as described above, the movement effect of the laundry by the roller is limited to a certain area on the pulsator, and when the amount of laundry in the washing tub is large, The effect of improving the clothes around the laundry cannot be obtained so much. Therefore, it is conceivable to provide the rollers in the vertical direction not on the pulsator but on the inner wall of the washing tub.

しかし、単純に、ローラの上下両端に軸部を設け、その軸部を洗濯槽の内側壁部に枢支させた形態とした場合には、ローラが洗濯槽の内壁面から内周側に突出した形態となり、例えば上から見た場合の、洗濯槽の内周面とローラとの間の段差が大きくなってしまう。そのため、洗濯物をローラによってスムーズに移動させることができず、布のつまりや引っ掛かりを招くことが予想される。   However, when the shaft is simply provided at both the upper and lower ends of the roller and the shaft is pivotally supported on the inner wall of the washing tub, the roller protrudes from the inner wall of the washing tub to the inner peripheral side. For example, when viewed from above, the step between the inner peripheral surface of the washing tub and the roller becomes large. Therefore, it is expected that the laundry cannot be smoothly moved by the roller, and the cloth is clogged or caught.

そこで、洗濯槽内にローラを設けて、布回りを良好にすることができるものであって、ローラ部分で洗濯物をスムーズに移動させることが可能な洗濯機を提供する。   In view of this, a washing machine is provided that can be provided with a roller in the washing tub to improve the cloth circumference and can smoothly move the laundry by the roller portion.

本実施形態に係る洗濯機は、洗濯物が収容され洗濯が行われる洗濯槽と、前記洗濯槽の内壁部に、外周壁面の一部が該洗濯槽内に露出した状態で、軸方向を上下方向として回転自在に設けられ、回転により洗濯物の移動を促進するためのローラと、前記洗濯槽の前記ローラの両側部に位置して設けられ、前記ローラの露出外周壁面に対し滑らかなカーブを描くように連なり、該ローラに向けて洗濯物をスムーズに導くための側部膨出部とを備えている。   The washing machine according to the present embodiment includes a washing tub in which laundry is stored and washing is performed, and an inner wall portion of the washing tub has a part of the outer peripheral wall surface exposed to the inside of the washing tub. The roller is provided in a freely rotating direction, and is provided on both sides of the roller of the washing tub so as to promote the movement of the laundry by rotation, and has a smooth curve with respect to the exposed outer peripheral wall surface of the roller. It has a side bulging portion that is continuous as drawn and that guides the laundry smoothly toward the roller.

第1の実施形態を示すもので、洗濯機の全体構成を概略的に示す縦断側面図1 is a longitudinal side view schematically showing an overall configuration of a washing machine according to the first embodiment. 洗濯槽の構成を図1とは異なる断面で示す縦断面図Longitudinal sectional view showing the structure of the washing tub in a section different from FIG. 第1のカバー部材の正面図(a)及び背面図(b)Front view (a) and rear view (b) of first cover member 第1のカバー部材の図3(a)のA−A線に沿う縦断側面図(a)及びB−B線に沿う横断上面図(b)FIG. 3A is a longitudinal side view of the first cover member taken along line AA in FIG. 3A and a cross-sectional top view taken along line BB. 第1のカバー部材に対するローラユニットの取付前の様子を示す斜視図The perspective view which shows the mode before attachment of the roller unit with respect to a 1st cover member 第1のカバー部材に対するローラユニットの着脱途中の様子を示す斜視図The perspective view which shows the mode in the middle of attachment or detachment of the roller unit with respect to the 1st cover member ローラユニットの裏面側からの分解斜視図(a)及び斜視図(b)Exploded perspective view (a) and perspective view (b) from the back side of the roller unit 保持部材の正面図(a)、背面図(b)、縦断側面図(c)Front view (a), rear view (b), longitudinal side view (c) of holding member ローラの分解斜視図Exploded perspective view of roller ローラ主部の縦断面図(a)、上面図(b)、底面図(c)Longitudinal sectional view (a), top view (b), bottom view (c) of roller main part キャップ部の斜視図(a)、正面図(b)、縦断側面図(c)Perspective view (a), front view (b), longitudinal side view (c) of cap part ローラのシャフトの保持構造を上部(a)及び下部(b)について示す背面図Rear view showing roller shaft holding structure for upper part (a) and lower part (b) ローラ及び側部膨出部部分を示す横断上面図Transverse top view showing rollers and side bulges ローラ内における洗濯水の侵入の様子を説明するための縦断面図Longitudinal sectional view for explaining the state of intrusion of washing water in the roller 第2の実施形態を示すもので、ローラ及び側部膨出部部分の異なる2種類の形態(a)、(b)を概略的に示す横断上面図The cross-sectional top view which shows 2nd Embodiment and shows two types of forms (a) and (b) from which a roller and a side part bulge part differ differ 第3の実施形態を示すもので、ローラ及び側部膨出部部分を概略的に示す横断上面図The cross-sectional top view which shows 3rd Embodiment and shows a roller and a side part swelling part part roughly

(1)第1の実施形態
以下、いわゆる縦軸型の洗濯機に適用した第1の実施形態について、図1から図14を参照しながら説明する。まず、図1を参照して、本実施形態に係る洗濯機1の全体構成について述べる。洗濯機1は、例えば鋼板から全体として矩形箱状に構成された外箱2の上部に、プラスチック製のトップカバー3を備えている。前記外箱2内には、洗濯水を溜めることが可能な水槽4が、周知構成の弾性吊持機構(図示せず)により弾性的に吊り下げ支持されて設けられている。尚、図示はしないが、水槽4の底部には、排水口が形成され、この排水口に、排水弁を備えた排水路が接続されている。
(1) 1st Embodiment Hereinafter, 1st Embodiment applied to what is called a vertical axis | shaft type washing machine is described, referring FIGS. 1-14. First, the overall configuration of the washing machine 1 according to the present embodiment will be described with reference to FIG. The washing machine 1 includes, for example, a plastic top cover 3 on an upper portion of an outer box 2 that is configured as a rectangular box as a whole from a steel plate. A water tub 4 capable of storing washing water is provided in the outer box 2 while being elastically suspended and supported by an elastic suspension mechanism (not shown) having a well-known configuration. Although not shown, a drain port is formed at the bottom of the water tank 4 and a drain channel provided with a drain valve is connected to the drain port.

前記水槽4内には、脱水槽を兼用する縦軸型の洗濯槽(回転槽)5が回転可能に設けられている。図2にも示すように、洗濯槽5は、全体として有底円筒状をなし、その周壁部には、多数個の脱水孔17が形成されている。洗濯槽5の上端部には、例えば液体封入形の回転バランサ6が取付けられている。また、洗濯槽5の内底部には、パルセータ7が配設されている。この洗濯槽5内には、図示しない洗濯物が収容されるようになっており、衣類の洗い、すすぎ、脱水等の行程からなる洗濯運転が行われる。洗濯槽5内部の詳細な構造については後述する。   In the water tank 4, a vertical washing tank (rotating tank) 5 also serving as a dewatering tank is rotatably provided. As shown in FIG. 2, the washing tub 5 has a bottomed cylindrical shape as a whole, and a large number of dewatering holes 17 are formed in the peripheral wall portion. For example, a liquid-filled rotary balancer 6 is attached to the upper end of the washing tub 5. A pulsator 7 is disposed on the inner bottom of the washing tub 5. In the washing tub 5, laundry (not shown) is accommodated, and a washing operation including steps such as washing, rinsing and dehydration of clothes is performed. The detailed structure inside the washing tub 5 will be described later.

前記水槽4の外底部には、周知構成の駆動機構8が配設されている。詳しい図示及び説明は省略するが、この駆動機構8は、例えばアウタロータ形のDC三相ブラシレスモータからなる洗濯機モータ9、中空の槽軸10、該槽軸10を貫通する撹拌軸11、前記洗濯機モータの回転駆動力をそれら軸10、11に選択的に伝達するクラッチ機構等を備えている。前記槽軸10の上端には、前記洗濯槽5が連結されており、前記撹拌軸11の上端には、前記パルセータ7が連結されている。   A well-known drive mechanism 8 is disposed on the outer bottom of the water tank 4. Although not shown and described in detail, the drive mechanism 8 includes a washing machine motor 9 made of, for example, an outer rotor type DC three-phase brushless motor, a hollow tank shaft 10, a stirring shaft 11 penetrating the tank shaft 10, and the washing A clutch mechanism for selectively transmitting the rotational driving force of the machine motor to the shafts 10 and 11 is provided. The washing tub 5 is connected to the upper end of the tank shaft 10, and the pulsator 7 is connected to the upper end of the stirring shaft 11.

前記クラッチ機構は、例えばソレノイドを駆動源としており、コンピュータを主体として構成された制御装置により制御される。これにて、クラッチ機構は、洗い及びためすすぎの行程では、洗濯槽5の固定(停止)状態で、洗濯機モータ9の駆動力を、撹拌軸11を介してパルセータ7に伝達してパルセータ7を直接正逆回転駆動する。また、脱水の行程では、クラッチ機構は、槽軸10と撹拌軸11との連結状態で、洗濯機モータ9の駆動力を、槽軸10を介して洗濯槽5に伝達し、洗濯槽5(及びパルセータ7)を一方向に高速で直接回転駆動するようになっている。   The clutch mechanism uses a solenoid as a drive source, for example, and is controlled by a control device mainly composed of a computer. Thus, the clutch mechanism transmits the driving force of the washing machine motor 9 to the pulsator 7 through the agitation shaft 11 in the fixed (stopped) state of the washing tub 5 in the washing and rinsing strokes. Is driven directly forward and reverse. In the dehydration process, the clutch mechanism transmits the driving force of the washing machine motor 9 to the washing tub 5 through the tub shaft 10 in a state where the tub shaft 10 and the agitation shaft 11 are connected to each other. The pulsator 7) is directly rotated at a high speed in one direction.

前記トップカバー3は、下面が開口すると共に、その上面が前方に向けて下降傾斜するような薄形の中空箱状をなすと共に、その中央部には、前記洗濯槽5の上方に位置して、ほぼ円形の洗濯物の出入口が形成されている。トップカバー3の上面には、全体として矩形パネル状をなし、前記出入口を開閉するための蓋12が設けられている。また、詳しく図示はしないが、トップカバー3の上面の前辺部には、横長形状の操作パネルが設けられている。トップカバー3内の後部には、水槽4(洗濯槽5)内への給水を行う給水機構が設けられている。   The top cover 3 has a thin hollow box shape whose lower surface is open and whose upper surface is inclined downward toward the front, and is located above the washing tub 5 at the center thereof. A substantially circular laundry doorway is formed. On the top surface of the top cover 3, a lid 12 is formed to form a rectangular panel as a whole and to open and close the doorway. Although not shown in detail, a horizontally long operation panel is provided on the front side of the top surface of the top cover 3. A water supply mechanism for supplying water into the water tub 4 (washing tub 5) is provided at the rear portion in the top cover 3.

ここで、前記洗濯槽5について、図2も参照して述べる。洗濯槽5は、詳細には、円筒状の胴部15の下端部に、槽底部16を連結すると共に、胴部15の上端部に、前記回転バランサ6を連結して構成される。前記胴部15は、金属板例えばステンレス板から上下両面が開口した円筒状をなし、後述する水路の形成部分(カバー部材の装着部分)を除いた位置に、多数個の脱水用の脱水孔17が形成されている。前記槽底部16は、プラスチック製で円形容器状に形成されており、前記胴部15の下部に、かしめ及びねじ止めにより結合されている。   Here, the washing tub 5 will be described with reference to FIG. Specifically, the washing tub 5 is configured by connecting the tank bottom portion 16 to the lower end portion of the cylindrical body portion 15 and connecting the rotary balancer 6 to the upper end portion of the body portion 15. The body 15 has a cylindrical shape with both upper and lower sides opened from a metal plate such as a stainless steel plate, and a plurality of dewatering holes 17 for dewatering are provided at positions excluding a water channel forming portion (a mounting portion of a cover member) described later. Is formed. The tank bottom portion 16 is made of plastic and is formed in a circular container shape, and is coupled to the lower portion of the body portion 15 by caulking and screwing.

前記槽底部16の内底部(上面)の円形領域は、前記パルセータ7との間にポンプ室20が形成されるようになっている。また、槽底部16の外周部には、円周方向に角度120度間隔の3箇所に位置して、流出口21が形成されている。前記パルセータ7は、表面(上面)に水流生成用の凸部を有する円板状をなし、その裏面には、ポンプ室20内に位置して、半径方向に延びる薄板状をなす複数枚のポンプ羽根22が一体に設けられている。これにて、遠心ポンプが構成され、パルセータ7の回転により、洗濯槽5内の洗濯液(水や、洗剤が溶けた水)が、ポンプ室20の外周方向(3つの流出口21)に向けて吐出されるようになる。   A pump chamber 20 is formed between the circular region of the inner bottom (upper surface) of the tank bottom 16 and the pulsator 7. In addition, on the outer peripheral portion of the tank bottom portion 16, outlets 21 are formed at three positions with an angle of 120 degrees in the circumferential direction. The pulsator 7 has a disk shape having a water flow generating convex portion on the front surface (upper surface), and a plurality of pumps having a thin plate shape located in the pump chamber 20 on the rear surface and extending in the radial direction. The blades 22 are provided integrally. Thus, the centrifugal pump is configured, and the washing liquid (water or water in which the detergent is dissolved) in the washing tub 5 is directed toward the outer peripheral direction (three outlets 21) of the pump chamber 20 by the rotation of the pulsator 7. Will be discharged.

そして、前記洗濯槽5の側壁部には、洗濯槽5内の洗濯液を、前記ポンプ室20の各流出口21から揚水し、洗濯槽5の上部から吐出(散水)させるための水路(揚水路)23が設けられる。ここでは、複数個例えば3個の水路23が、洗濯槽5の円周方向に角度120度間隔で、上下方向に延びて設けられる。この場合、各水路23は、洗濯槽5の槽底部16(流出口21部分)から胴部15にかけて、カバー部材を装着することにより形成されるようになっている。   Then, on the side wall of the washing tub 5, a water channel (pumping water) for pumping the washing liquid in the washing tub 5 from each outlet 21 of the pump chamber 20 and discharging (sprinkling) from the upper part of the washing tub 5. Road) 23 is provided. Here, a plurality of, for example, three water channels 23 are provided extending in the vertical direction at intervals of 120 degrees in the circumferential direction of the washing tub 5. In this case, each water channel 23 is formed by attaching a cover member from the tank bottom 16 (outflow port 21 portion) of the washing tub 5 to the trunk portion 15.

このとき、本実施形態では、3個の水路23を形成するにあたり、洗濯槽5内の2箇所には、第1のカバー部材24が設けられ、残りの1箇所には、第1のカバー部材24とは構造が異なる第2のカバー部材25が設けられる。そのうち第1のカバー部材24には、ローラ(ローラユニット)が装着されるようになっている。この第1のカバー24及びローラ(ローラユニット)の構成については、後述する。   At this time, in this embodiment, when forming the three water channels 23, the 1st cover member 24 is provided in two places in the washing tub 5, and the 1st cover member is provided in the remaining one place. A second cover member 25 having a different structure from that of 24 is provided. Of these, a roller (roller unit) is mounted on the first cover member 24. The configurations of the first cover 24 and the rollers (roller units) will be described later.

前記第2のカバー部材25は、プラスチックの成形品からなり、図1、図2に示すように、全体として上下方向に長い略板状をなし、前記胴部15の内周面側に配置される主部25aと、この主部25aの下部に設けられ槽底部16の流出口21に連結される下側連結部25bと、主部25aの上部から前記回転バランサ6部分まで上方内周側に延びて設けられる延長部25cとを一体に備えている。前記主部25aは、横断面が、胴部15のなす曲面とは反対側に湾曲する円弧状をなしている。   The second cover member 25 is formed of a plastic molded product, and as shown in FIGS. 1 and 2, the second cover member 25 has a substantially plate shape that is long in the vertical direction as a whole, and is disposed on the inner peripheral surface side of the body portion 15. Main portion 25a, a lower connecting portion 25b provided at the lower portion of the main portion 25a and connected to the outlet 21 of the tank bottom portion 16, and from the upper portion of the main portion 25a to the rotary balancer 6 portion on the upper inner peripheral side. An extension portion 25c provided to extend is integrally provided. The main portion 25 a has an arc shape whose cross section curves to the opposite side to the curved surface formed by the body portion 15.

図1に示すように、第2のカバー部材25の主部25aには、縦長の矩形開口部25dが形成され、その矩形開口部25dを塞ぐように、フィルタ部材26が取外し可能に装着されている。詳しく図示はしないが、このフィルタ部材26は、全体として矩形板状をなし、その板面に複数本の横長なスリット状をなす通水孔を有すると共に、その通水孔部分にリント捕獲用の網状のフィルタを取付けてなる周知構成を備えている。   As shown in FIG. 1, a vertically long rectangular opening 25d is formed in the main portion 25a of the second cover member 25, and the filter member 26 is detachably mounted so as to close the rectangular opening 25d. Yes. Although not shown in detail, the filter member 26 has a rectangular plate shape as a whole, and has a plurality of horizontally-slit water passage holes on the plate surface, and a lint capturing portion in the water hole portion. It has a well-known configuration with a net-like filter attached.

また、第2のカバー部材25の延長部25cには、前記回転バランサ6の下方に位置して、洗濯槽5の内壁部で開口する洗剤投入口29が設けられている。このように構成された第2のカバー部材25は、詳しく図示はしないが、洗濯槽5に対し、例えば係合爪と係合孔との係合により取付けられる。このとき、図示はしないが、カバー部材25の裏面側には、図1で左右の辺部に沿ってパッキンが設けられ、洗濯槽5の内壁面との間が水密にシールされて水路23が形成されるようになっている。   In addition, the extension portion 25 c of the second cover member 25 is provided with a detergent charging port 29 that is located below the rotary balancer 6 and opens at the inner wall portion of the washing tub 5. Although not shown in detail, the second cover member 25 configured in this manner is attached to the washing tub 5 by, for example, engagement of an engagement claw and an engagement hole. At this time, although not shown in the figure, packing is provided on the back side of the cover member 25 along the left and right sides in FIG. 1, and the space between the inner wall surface of the washing tub 5 and the water channel 23 is sealed. It is supposed to be formed.

これにて、ユーザは、洗濯運転を開始する際に、予め洗剤投入口29から所要量に洗剤を投入しておくことができる。そして、洗濯運転が開始されて前記パルセータ7が回転することにより、洗濯槽5内の洗濯水がポンプ室20の流出口21から水路23を上昇し、フィルタ部材26の通水孔から洗濯槽5内に供給される循環が行われる。その際に、投入されていた洗剤が、水に溶かされながら洗濯槽5内に送られる。また、洗濯水中に含まれていたリント(糸くず)が、フィルタ部材26のフィルタにより捕獲されるようになる。フィルタ部材26を第2のカバー部材25から取外すことにより、フィルタの掃除を容易に行うことができる。   Thus, when starting the washing operation, the user can input the detergent into the required amount from the detergent insertion port 29 in advance. Then, when the washing operation is started and the pulsator 7 rotates, the washing water in the washing tub 5 ascends the water channel 23 from the outlet 21 of the pump chamber 20, and the washing tub 5 from the water passage hole of the filter member 26. The circulation supplied in is performed. At that time, the detergent that has been added is sent into the washing tub 5 while being dissolved in water. Further, lint (lint) contained in the washing water is captured by the filter of the filter member 26. The filter can be easily cleaned by removing the filter member 26 from the second cover member 25.

次に、前記第1のカバー部材24について、図3〜図6も参照して述べる。第1のカバー部材24は、プラスチック成形品からなり、その外形については、上記第2のカバー部材25とほぼ同様とされている。即ち、第1のカバー部材24は、全体として上下方向に長い略板状をなし、胴部15の内周面側に配置される主部24aと、この主部24aの下部に設けられ槽底部16の流出口21に連結される下側連結部24bと、主部24aの上部から前記回転バランサ6部分まで上方内周側に延びて設けられる延長部24cとを一体に備えている。   Next, the first cover member 24 will be described with reference to FIGS. The first cover member 24 is made of a plastic molded product, and the outer shape thereof is substantially the same as that of the second cover member 25. That is, the first cover member 24 has a substantially plate shape that is long in the vertical direction as a whole, and has a main portion 24a disposed on the inner peripheral surface side of the trunk portion 15 and a tank bottom portion provided below the main portion 24a. The lower connection part 24b connected to the 16 outflow ports 21 and the extension part 24c provided so as to extend from the upper part of the main part 24a to the rotary balancer 6 part on the upper inner peripheral side are integrally provided.

図3に示すように、延長部24cは、前面が逆台形形状に開口し、奥に向けて薄い凹状に構成され、延長部24aの奥壁下部に形成された連通口30を介して、前記主部24aの裏面側(水路23)の上端部とつながっている。また、図5に示すように、延長部24cの前面開口部は、吐出口カバー32が装着されて塞がれるようになっている。この吐出口カバー32には、上部寄りに位置して、横長スリット状の吐出口32aが形成されている。   As shown in FIG. 3, the extension 24 c has an inverted trapezoidal shape on the front surface, is formed in a thin concave shape toward the back, and the communication port 30 formed at the bottom of the back wall of the extension 24 a It is connected with the upper end part of the back surface side (water channel 23) of the main part 24a. Also, as shown in FIG. 5, the front opening of the extension 24c is closed by the discharge port cover 32 being attached. The discharge port cover 32 is formed with a horizontally elongated discharge port 32a located near the top.

前記主部24aは、図4(b)に示すように、全体として、横断面が、胴部15のなす曲面とは反対側に湾曲する円弧状をなしている。この主部24aの前面部の縦長矩形状の領域には、後述するローラユニットが着脱自在に装着される取付部31が凹状に設けられている。この取付部31は、左右の側壁と、背壁とを有した前面が開口した縦長矩形状のケース状をなしている。取付部31の背壁部には、後述するローラが配置される部分の背面に開口する縦長な開口部31aが形成されている。後述するローラは、水路23とは分離された形態で設けられるようになっている。   As shown in FIG. 4B, the main portion 24 a has an arc shape whose cross section is curved to the opposite side to the curved surface formed by the body portion 15 as a whole. A mounting portion 31 to which a roller unit, which will be described later, is detachably mounted is provided in a concave shape in a vertically long rectangular region on the front surface of the main portion 24a. The mounting portion 31 has a vertically-long rectangular case shape with a front surface having left and right side walls and a back wall opened. In the back wall portion of the attachment portion 31, a vertically long opening portion 31 a that opens to the back surface of a portion where a roller to be described later is disposed is formed. A roller, which will be described later, is provided in a form separated from the water channel 23.

この場合、図13にも示すように、主部24aのうち、前記取付部31の前面開口部の左右部位は、上方から見て、左右両端部から中心部に向けて次第に内周側に膨らむような湾曲壁としてのカバー側湾曲壁39、39とされている。詳しくは後述するように、これらカバー側湾曲壁39、39は、保持部材の湾曲壁(保持部材側湾曲壁)と共に、側部膨出部を構成するようになっている。   In this case, as shown in FIG. 13, the left and right portions of the front opening of the mounting portion 31 of the main portion 24 a gradually bulge toward the inner peripheral side from the left and right end portions toward the center portion when viewed from above. The cover-side curved walls 39 and 39 are used as such curved walls. As will be described in detail later, these cover-side curved walls 39, 39 together with the curved wall of the holding member (holding member-side curved wall) constitute a side bulging portion.

この第1のカバー部材24も、詳しく図示はしないが、洗濯槽5に対し、例えば係合爪と係合孔との係合により取付けられる。このとき、図3(b)に示すように、第1のカバー部材24の裏面側には、外側パッキン保持溝24d及び内側パッキン保持溝24eが一体に設けられている。そのうち外側パッキン保持溝24dは、第1のカバー部材24の主部24a及び下部連結部24bにかけての左右の側辺部を上方に延びていると共に、連通口30のすぐ上部でつながるような逆U字状の形態で形成されている。また、内側パッキン保持溝24eは、上記取付部31(開口部31a)の外側周囲を囲むような縦長矩形枠状に形成されている。   Although not shown in detail, the first cover member 24 is also attached to the washing tub 5 by engaging, for example, an engaging claw and an engaging hole. At this time, as shown in FIG. 3B, the outer packing holding groove 24 d and the inner packing holding groove 24 e are integrally provided on the back surface side of the first cover member 24. Of these, the outer packing retaining groove 24d extends upside on the left and right sides of the first cover member 24 to the main portion 24a and the lower connecting portion 24b, and is connected to the reverse U so as to be connected immediately above the communication port 30. It is formed in the shape of a letter. Further, the inner packing holding groove 24e is formed in a vertically long rectangular frame shape surrounding the outer periphery of the mounting portion 31 (opening 31a).

外側パッキン保持溝24dには、有端帯状の外側パッキン33が保持され、水路23の外周囲に沿って、第1のカバー部材24の裏面と胴部15の内壁面との間を水密にシールするようになっている。また、内側パッキン保持溝24eには、枠状の内側パッキン34が保持され、開口部31aの外側の周囲部分に沿って、第1のカバー部材24の裏面と胴部15の内壁面との間を水密にシールする。   The outer packing holding groove 24 d holds an end-band-like outer packing 33, and seals between the back surface of the first cover member 24 and the inner wall surface of the trunk portion 15 along the outer periphery of the water channel 23. It is supposed to be. Further, the inner packing holding groove 24e holds a frame-shaped inner packing 34, and the gap between the back surface of the first cover member 24 and the inner wall surface of the trunk portion 15 along the outer peripheral portion of the opening 31a. Seal watertight.

これにて、第1のカバー部材24と、洗濯槽5(胴部15)の内周壁との間には、洗濯水を上昇させるための水路23が形成される。この場合、図3(b)に示すように、水路23は、矢印aで示すように、流出口21から取付部31の下部まで上方に延び、そこから二股に分岐して取付部31(開口部31a)の左右を上方に延び、取付部31の上部で再び一つになって、前記連通口30に至るようになっている。連通口30を通った洗濯水は、延長部24a内(前面側)に至り、吐出口カバー32の吐出口32aから、洗濯槽5内に吐出される。従って、水路23は、後述のローラの両側部に位置して設けられる。   Thus, a water channel 23 for raising the washing water is formed between the first cover member 24 and the inner peripheral wall of the washing tub 5 (body portion 15). In this case, as shown in FIG. 3 (b), the water channel 23 extends upward from the outlet 21 to the lower portion of the mounting portion 31 as shown by an arrow a, and then branches into two branches from the mounting portion 31 (opening). The left and right sides of the portion 31 a) extend upward, become one again at the upper part of the attachment portion 31, and reach the communication port 30. The washing water that has passed through the communication port 30 reaches the inside of the extension 24 a (front side) and is discharged into the washing tub 5 from the discharge port 32 a of the discharge port cover 32. Accordingly, the water channel 23 is provided on both sides of a roller described later.

そして、図4(a)に示すように、第1のカバー部材24の前記取付部31には、その下辺部に位置して、後述するローラユニットの係止片を係止する被係止部35が設けられている。これと共に、前記取付部31の上辺部には、後述するローラユニットの嵌合凸部が嵌合する嵌合穴36が設けられている。さらに、取付部31には、前記開口30aの上部及び下部に位置して、後述するローラのシャフトの上端部及び下端部を夫々抜止め状態に保持するための上部保持部37及び下部保持部38が設けられている。これら上部保持部37及び下部保持部38は、前方に突出する横長な板状の片部の先端面中央部に、U字状の凹部37a及び38aを有して構成されている。   And as shown to Fig.4 (a), in the said attaching part 31 of the 1st cover member 24, it is located in the lower side part, and the to-be-latched part which latches the locking piece of the roller unit mentioned later 35 is provided. At the same time, a fitting hole 36 for fitting a fitting projection of a roller unit, which will be described later, is provided on the upper side of the mounting portion 31. Further, the attachment portion 31 is located above and below the opening 30a, and an upper holding portion 37 and a lower holding portion 38 for holding an upper end portion and a lower end portion of a roller shaft, which will be described later, in a retaining state, respectively. Is provided. The upper holding portion 37 and the lower holding portion 38 are configured to have U-shaped concave portions 37a and 38a at the center of the front end surface of a horizontally long plate-like piece protruding forward.

さて、図1、図2等に示すように、上記した洗濯槽5の内壁部には、回転により洗濯物の移動を促進するための円筒状のローラ41が、軸方向を上下方向にした状態で回転自在に設けられる。図5、図6等に示すように、本実施形態では、ローラ41は、保持部材42に保持されてローラユニット43とされ、そのローラユニット43の状態で、前記各第1のカバー部材24の取付部31に、取外し可能(着脱自在)に装着されるようになっている。以下、ローラ41及びローラユニット43について、図7〜図13も参照して詳述する。   Now, as shown in FIG. 1, FIG. 2, etc., the cylindrical wall 41 for accelerating | stimulating the movement of the laundry by rotation is the state which made the axial direction the up-down direction on the inner wall part of the above-mentioned washing tub 5 It can be rotated freely. As shown in FIGS. 5 and 6, in this embodiment, the roller 41 is held by a holding member 42 to form a roller unit 43, and in the state of the roller unit 43, each of the first cover members 24. The mounting portion 31 is detachably (detachably) mounted. Hereinafter, the roller 41 and the roller unit 43 will be described in detail with reference to FIGS.

まず、ローラ41について述べる。図9等に示すように、ローラ41は、ローラ主部44、キャップ部45、金属製のシャフト46、上下のブッシュ47、47を有して構成される。そのうちローラ主部44は、図10にも示すように、プラスチック成形品からなり、上面が開口した(下端面は底壁を有する)縦長な中空円筒状をなすと共に、その底面(下端面)に連続して、シャフト46が挿通されて保持される筒部48を一体に有している。筒部48は、円管状をなし、ローラ主部44の軸中心部を軸方向(上方向)に向けて上部付近まで延びるように設けられている。   First, the roller 41 will be described. As shown in FIG. 9 and the like, the roller 41 includes a roller main portion 44, a cap portion 45, a metal shaft 46, and upper and lower bushes 47, 47. Of these, as shown in FIG. 10, the roller main portion 44 is made of a plastic molded product and has a vertically long hollow cylindrical shape whose upper surface is open (the lower end surface has a bottom wall), and on the bottom surface (lower end surface). Continuously, it integrally has a cylindrical portion 48 through which the shaft 46 is inserted and held. The cylindrical portion 48 has a circular tubular shape and is provided so as to extend to the vicinity of the upper portion with the axial center portion of the roller main portion 44 directed in the axial direction (upward direction).

このとき、図10(c)に示すように、ローラ主部44の底面には、3個の開口49が形成されている。これら開口49は、軸方向に見て筒部48から外れた位置に、角度120度間隔で配置され、ローラ主部44の内部空間(筒部48の外周側の空間)に連通している。また、図10(b)に示すように、ローラ主部44の内周面には、前記筒部48の外周部につながるように、3本の補強リブ44aが角度120度間隔で一体に形成されている。更に、ローラ主部44の内周面の上部には、キャップ部45との連結のための、3組の係合ピン44b及びフック44cが、円周方向に角度120度間隔で一体に設けられている。   At this time, as shown in FIG. 10C, three openings 49 are formed on the bottom surface of the roller main portion 44. These openings 49 are arranged at intervals of 120 degrees at positions away from the cylindrical portion 48 when viewed in the axial direction, and communicate with the internal space of the roller main portion 44 (space on the outer peripheral side of the cylindrical portion 48). Also, as shown in FIG. 10B, three reinforcing ribs 44a are integrally formed on the inner peripheral surface of the roller main portion 44 at intervals of 120 degrees so as to be connected to the outer peripheral portion of the cylindrical portion 48. Has been. Further, on the upper part of the inner peripheral surface of the roller main portion 44, three sets of engaging pins 44b and hooks 44c for connection with the cap portion 45 are integrally provided at intervals of 120 degrees in the circumferential direction. ing.

上記ローラ主部44に対し、キャップ部45は、やはりプラスチック成型品からなり、図11に示すように、ローラ41の上端面を構成する円板状部分の下面から下方に延びて前記ローラ主部44の内周面に嵌り込む円筒壁部50を一体に有する円筒キャップ状をなしている。キャップ部45の軸中心部には、上下方向に貫通するように下方に延び、前記シャフト46が挿通される筒部51が一体に設けられている。   With respect to the roller main portion 44, the cap portion 45 is also made of a plastic molded product, and extends downward from the lower surface of the disk-shaped portion constituting the upper end surface of the roller 41 as shown in FIG. It has a cylindrical cap shape integrally including a cylindrical wall portion 50 fitted into the inner peripheral surface of 44. A cylindrical portion 51 that extends downward so as to penetrate in the vertical direction and through which the shaft 46 is inserted is integrally provided at the axial center portion of the cap portion 45.

また、図11(a)、(b)に示すように、前記円筒壁部50には、円周方向の3カ所にわたって、円筒壁部50の先端部を斜めにカットした形態をなし、前記ローラ主部44の係合ピン44bが当接して相対的に案内されるカム部50aが設けられていると共に、そのカム部50aの終端に上向きの凹状に設けられ係合ピン44bが係合固定される係合凹部50bが設けられている。さらに、円筒壁部50には、ローラ主部44のフック44cが抜け止め状態に係止される3個の係止孔部50cが形成されている。   Further, as shown in FIGS. 11A and 11B, the cylindrical wall portion 50 has a configuration in which the tip end portion of the cylindrical wall portion 50 is cut obliquely at three locations in the circumferential direction, and the roller A cam portion 50a that is relatively guided by contact with the engagement pin 44b of the main portion 44 is provided, and the engagement pin 44b is engaged and fixed at the end of the cam portion 50a. An engaging recess 50b is provided. Furthermore, three locking hole portions 50c are formed in the cylindrical wall portion 50 so that the hooks 44c of the roller main portion 44 are locked in a retaining state.

これにて、キャップ部45は、前記ローラ主部44の上端部に対し、円筒壁部50のカム部50aが係合ピン44bに当接するように嵌合させた後。右回り方向に回転させることにより、係合凹部50bに係合ピン44bが係合固定されると共に、係止孔部50cにフック44cが係止され、以て、ローラ主部44に取付けられるようになっている。   Thus, after the cap portion 45 is fitted to the upper end portion of the roller main portion 44 so that the cam portion 50a of the cylindrical wall portion 50 is in contact with the engaging pin 44b. By rotating clockwise, the engaging pin 44b is engaged and fixed in the engaging recess 50b, and the hook 44c is locked in the locking hole 50c, so that it is attached to the roller main portion 44. It has become.

そして、図11(c)にも示すように、ローラ41の上端面であるキャップ部45の上面には、布挟み防止用のリブ52が一体に設けられる。このリブ52は、図12(a)にも示すように、シャフト46の外周側に位置して、上方に立上がるリング状(高さの低い円筒状)をなすように設けられ、後述するように、保持部材42の矩形開口部53aの上辺との間の隙間を塞ぐようにして、該隙間に洗濯物の布が挟まることを防止する。また、これも後述するように、このリブ52は、保持部材42に対し、ローラ41が正規の向きでは保持可能であるが、逆向きでは保持不能とする誤組立防止部材を兼用している。   As shown in FIG. 11C, a rib 52 for preventing cloth pinching is integrally provided on the upper surface of the cap portion 45 that is the upper end surface of the roller 41. As shown in FIG. 12A, the rib 52 is provided on the outer peripheral side of the shaft 46 so as to form a ring shape (cylindrical shape having a low height) rising upward, as will be described later. In addition, the gap between the upper side of the rectangular opening 53a of the holding member 42 is blocked, and the laundry cloth is prevented from being caught in the gap. In addition, as will be described later, the rib 52 also serves as a misassembly prevention member that can hold the roller 41 in the normal direction with respect to the holding member 42 but cannot hold it in the reverse direction.

ローラ41は、上記のように、ローラ主部44にキャップ部45を取付けると共に、筒部48及び筒部51の内部にシャフト46を挿通させ、上下のブッシュ47、47によりシャフト46を固定することにより組立てられる。これにて、図7(a)に示すように、ローラ41は、その軸中心部をシャフト46が貫通して、該シャフト46がローラ41の上下両端面から若干長さだけ上下に突出した形態とされる。   As described above, the roller 41 has the cap portion 45 attached to the roller main portion 44, and the shaft 46 is inserted into the cylindrical portion 48 and the cylindrical portion 51, and the shaft 46 is fixed by the upper and lower bushes 47, 47. It is assembled by. Thus, as shown in FIG. 7 (a), the roller 41 has a configuration in which the shaft 46 penetrates the center of the shaft, and the shaft 46 protrudes up and down slightly from the upper and lower end faces of the roller 41. It is said.

上記構成のローラ41に対し、保持部材42は、次のように構成される。即ち、図7、図8に示すように、保持部材42は、プレスチック成形品からなり、全体として、前記第1のカバー部材24の取付部31を塞ぐような縦長矩形状をなし、裏面側が開口し前後方向に薄型のケース状に構成される。保持部材42の前面中央部は、上面から見て前方に向けて円弧状(かまぼこ型)に膨らむ形状の膨出部53とされていると共に、その膨出部53に、ローラ41の外周面のうち一部(全体の半分未満の面積)を露出させるための矩形開口部53aが形成されている。矩形開口部53aは、ローラ41の長さ寸法に対応して、ローラ41が嵌合する上下方向長さに形成されている。   With respect to the roller 41 configured as described above, the holding member 42 is configured as follows. That is, as shown in FIGS. 7 and 8, the holding member 42 is made of a plastic molded product, and as a whole, has a vertically long rectangular shape that closes the attachment portion 31 of the first cover member 24, and the back side is Opened and configured in a thin case shape in the front-rear direction. A central portion of the front surface of the holding member 42 is formed as a bulging portion 53 that bulges forward in an arc shape (kamaboko shape) as viewed from above, and the bulging portion 53 has an outer circumferential surface of the roller 41. A rectangular opening 53a is formed for exposing a part (less than half of the entire area). The rectangular opening 53 a is formed to have a length in the vertical direction in which the roller 41 is fitted, corresponding to the length of the roller 41.

このとき、図8(a)及び図13等に示すように、保持部材42の膨出部53の前面部は、開口部53aの左右に位置する部分が、湾曲壁としての保持部材側湾曲壁61、61とされている。後述のように、これら保持部材側湾曲壁61、61は、カバー側湾曲壁39、39と連続するようにして、それらと共に、側部膨出部62、62を構成するようになっている。側部膨出部62、62は、ローラ41の両側部に位置して設けられ、前記ローラ41の露出外周壁面に対し滑らかなカーブを描くように連なり、該ローラ41に向けて洗濯物をスムーズに導く機能を果たす。また、本実施形態では、保持部材側湾曲壁61、61は、上方から見た曲率が、前記ローラ41の近傍でよりローラ41の外周面に沿うように、変化する形状とされている。   At this time, as shown in FIG. 8A and FIG. 13 and the like, the front portion of the bulging portion 53 of the holding member 42 is a holding member side curved wall as a curved wall at the portions positioned on the left and right of the opening 53a. 61, 61. As will be described later, the holding member side curved walls 61 and 61 are continuous with the cover side curved walls 39 and 39 to form side bulging portions 62 and 62 together with them. The side bulging portions 62 and 62 are provided on both sides of the roller 41 and are connected so as to draw a smooth curve with respect to the exposed outer peripheral wall surface of the roller 41, so that the laundry is smoothly directed toward the roller 41. The function that leads to Further, in the present embodiment, the holding member-side curved walls 61 and 61 have a shape in which the curvature seen from above changes so as to follow the outer peripheral surface of the roller 41 in the vicinity of the roller 41.

更に、図8(c)等に示すように、保持部材42の膨出部53の前面部は、開口部53aの上部に位置する部分が、上部膨出部63とされていると共に、開口部53aの下部に位置する部分が、下部膨出部64とされている。上部膨出部63は、ローラ41の上部に位置して、該ローラ41の上端部に対し滑らかに連なる形態で設けられている。同様に、下部膨出部64は、ローラ41の下部に位置して、該ローラ41の下端部に対し滑らかに連なる形態で設けられている。   Further, as shown in FIG. 8C and the like, the front portion of the bulging portion 53 of the holding member 42 has a portion located at the upper portion of the opening portion 53a as an upper bulging portion 63, and the opening portion. A portion located at the lower portion of 53 a is a lower bulging portion 64. The upper bulging portion 63 is positioned above the roller 41 and is provided in a form that smoothly continues to the upper end portion of the roller 41. Similarly, the lower bulging portion 64 is located in the lower portion of the roller 41 and is provided in a form that is smoothly connected to the lower end portion of the roller 41.

保持部材42の裏面(内面)側には、図7(a)、図8(b)、図12に示すように、矩形開口部53aの上端部に位置して上部壁部54が一体に設けられ、矩形開口部53aの下端部に位置して下部壁部55が一体に設けられている。このとき、上部壁部54には、前記ローラ41のリブ52が配置(通過)可能な、幅広の上部切欠部54aが裏面側に開口するように形成されており、前記下部壁部55には、前記ローラ41のシャフト46が通過可能な、幅狭な下部切欠部55aが裏面側に開口するように形成されている。   On the back surface (inner surface) side of the holding member 42, as shown in FIGS. 7A, 8B, and 12, an upper wall portion 54 is integrally provided at the upper end portion of the rectangular opening 53a. The lower wall 55 is integrally provided at the lower end of the rectangular opening 53a. At this time, the upper wall portion 54 is formed with a wide upper notch portion 54a in which the rib 52 of the roller 41 can be disposed (passed) so as to open to the back surface side. A narrow lower notch 55a through which the shaft 46 of the roller 41 can pass is formed so as to open to the back side.

図7、図8に示すように、保持部材42の裏面(内面)側には、上部壁部54のやや上方に位置して、ローラ41のシャフト46の上端部を回転自在に枢支するための上部軸受部56が一体に設けられると共に、下部壁部55のやや下方に位置して、ローラ41のシャフト46の下端部を回転自在に枢支するための下部軸受部57が一体に設けられている。これら上部軸受部56及び下部軸受部57は、裏面側で開口するU字状の切欠部56a及び57aを夫々有し、ローラ41のシャフト46が裏面側から切欠部56a及び57aに差し込まれることにより、ローラ41を回転自在に枢支するようになっている。   As shown in FIGS. 7 and 8, on the back surface (inner surface) side of the holding member 42, the upper end portion of the shaft 46 of the roller 41 is rotatably supported so as to be positioned slightly above the upper wall portion 54. The upper bearing portion 56 is integrally provided, and the lower bearing portion 57 for pivotally supporting the lower end portion of the shaft 46 of the roller 41 is provided integrally with the lower wall portion 55 slightly below the lower wall portion 55. ing. The upper bearing portion 56 and the lower bearing portion 57 have U-shaped cutout portions 56a and 57a that open on the back surface side, respectively, and the shaft 46 of the roller 41 is inserted into the cutout portions 56a and 57a from the back surface side. The roller 41 is rotatably supported.

更に、前記保持部材42には、ローラユニット43を前記第1のカバー部材24の取付部31に着脱自在に装着するための構成が次のように設けられる。即ち、図7、図8に示すように、保持部材42の下端部には、下方に突出する横長形状の係止片58が一体に設けられている。この係止片58が、前記取付部31の被係止部35の内側に上方から差し込まれることにより、保持部材42の下端部が前方への抜け止め状態に係止される。   Further, the holding member 42 is provided with a structure for detachably mounting the roller unit 43 on the mounting portion 31 of the first cover member 24 as follows. That is, as shown in FIGS. 7 and 8, a horizontally long locking piece 58 that protrudes downward is integrally provided at the lower end of the holding member 42. When the locking piece 58 is inserted into the locked portion 35 of the mounting portion 31 from above, the lower end portion of the holding member 42 is locked in a state of preventing the retaining member 42 from coming forward.

一方、保持部材42の上端部には、図8に示すように、つまみ部59が一体に設けられている。このつまみ部59は、保持部材42の上端背面側の壁部から前方に延びる上部片部59a及び下部片部59bを上下に有し、それら上部片部59a及び下部片部59bが上下方向に弾性変形可能とされている。このとき、図6にも示すように、下部片部59bの下側には、ユーザが指を差し込むことが可能な凹部59cが前面で開口する凹状に設けられている。上部片部59aは、保持部材42の上端に位置され、その上面には、図5にも示すように、前記取付部31の嵌合穴36に対して着脱可能に嵌合する嵌合凸部60が設けられている。これにて、つまみ部59を上下につまんで、上部片部59a及び下部片部59bの間隔を狭めるようにして上部片部59aを下方(図8(c)の矢印b方向)に弾性変形させながら、嵌合凸部60を、嵌合穴36に対して着脱させることができる。   On the other hand, as shown in FIG. 8, a knob portion 59 is integrally provided at the upper end portion of the holding member 42. The knob 59 has an upper piece 59a and a lower piece 59b that extend forward from the wall on the back side of the upper end of the holding member 42. The upper piece 59a and the lower piece 59b are elastic in the vertical direction. It can be deformed. At this time, as shown in FIG. 6, a concave portion 59c into which a user can insert a finger is provided in a concave shape opened on the front surface below the lower piece portion 59b. The upper piece 59a is positioned at the upper end of the holding member 42, and the upper surface of the upper piece 59a is a fitting convex part that is detachably fitted into the fitting hole 36 of the mounting part 31, as shown in FIG. 60 is provided. As a result, the knob 59 is pinched up and down to elastically deform the upper piece 59a downward (in the direction of arrow b in FIG. 8C) so as to narrow the distance between the upper piece 59a and the lower piece 59b. However, the fitting convex portion 60 can be attached to and detached from the fitting hole 36.

上記構成のローラユニット43にあっては、図7(a)に示すように、ローラ41は、保持部材42に対し、裏面側から膨出部53内に収容されて保持される。具体的には、ローラ41のシャフト46の上端部が、上部軸受部56の切欠部56aに差し込まれるようにして、回転自在に枢支される。このとき、ローラ41の上端面部のリブ42が、上部壁部54の幅広の上部切欠部54a内に配置される。これと共に、シャフト46の下端部が、下部軸受部57の切欠部57aに差し込まれるようにして、回転自在に枢支される。このとき、シャフト46のうち、ローラ41の下端面のすぐ下部部分が、下部壁部55の幅狭な下部切欠部55a内に配置される。   In the roller unit 43 configured as described above, as shown in FIG. 7A, the roller 41 is accommodated and held in the bulging portion 53 from the back surface side with respect to the holding member 42. Specifically, the upper end portion of the shaft 46 of the roller 41 is pivotally supported so as to be inserted into the notch portion 56 a of the upper bearing portion 56. At this time, the rib 42 on the upper end surface portion of the roller 41 is disposed in the wide upper cutout portion 54 a of the upper wall portion 54. At the same time, the lower end portion of the shaft 46 is rotatably supported so as to be inserted into the notch portion 57 a of the lower bearing portion 57. At this time, a portion of the shaft 46 immediately below the lower end surface of the roller 41 is disposed in the narrow lower cutout portion 55 a of the lower wall portion 55.

これにて、図7(b)等に示すように、ローラ41が保持部材42に対し、回転自在に保持され、ローラ41の前部側の部分(半周よりもやや狭い範囲の部分)が矩形開口部53a内に配置されて前方に露出する。また、この保持状態では、図12(a)に示すように、ローラ41の上端面のリブ52が、ローラ41の上端面側の矩形開口部53との間の隙間部分に配置され、布の挟み込みを防止する機能を果たす。このとき、図12から明らかなように、リブ52が存在することにより、保持部材42にローラ41を上下逆に装着しようとしても、リブ52が下部壁部55に引掛かってしまうことになり、ローラ41を保持部材42に上下逆には保持できない構造となっている。   Thus, as shown in FIG. 7B and the like, the roller 41 is rotatably held with respect to the holding member 42, and the portion on the front side of the roller 41 (portion slightly narrower than the half circumference) is rectangular. It arrange | positions in the opening part 53a and is exposed ahead. Further, in this holding state, as shown in FIG. 12A, the rib 52 on the upper end surface of the roller 41 is disposed in the gap portion between the rectangular opening 53 on the upper end surface side of the roller 41 and the cloth 41 It fulfills the function of preventing pinching. At this time, as is apparent from FIG. 12, the rib 52 is present, so that the rib 52 is caught by the lower wall portion 55 even if the roller 41 is mounted on the holding member 42 upside down. 41 cannot be held upside down on the holding member 42.

そして、上記ローラユニット43は、洗濯槽5の内壁部の第1のカバー部材24の取付部31に対し着脱自在に装着される。ローラユニット43の取付部31への取付け時においては、まず、保持部材42の下端の係止片58を、取付部31の下辺部の被係止部35の内側に斜め上方から差し込むようにして係止させる(図6参照)。次いで、つまみ部59をつまんで、上部片部59aを下方(矢印b方向)に弾性変形させながら、ローラユニット43の上部を取付部31に嵌め込むようにして、嵌合凸部60を嵌合穴36に対して嵌合させる。尚、ローラユニット43の装着は、2箇所の第1のカバー部材24に対して夫々行われる。   The roller unit 43 is detachably attached to the attachment portion 31 of the first cover member 24 on the inner wall portion of the washing tub 5. When the roller unit 43 is attached to the attachment portion 31, first, the locking piece 58 at the lower end of the holding member 42 is inserted into the inside of the locked portion 35 on the lower side portion of the attachment portion 31 from obliquely above. Lock (see FIG. 6). Next, the fitting projection 60 is fitted into the fitting hole 36 by pinching the knob portion 59 and elastically deforming the upper piece portion 59a downward (in the direction of arrow b) while fitting the upper portion of the roller unit 43 into the mounting portion 31. To fit. The roller unit 43 is attached to the two first cover members 24 respectively.

これにより、ローラユニット43は取付部31に嵌込まれるように装着される。このとき、図1に示すように、ローラユニット43の裏面側で、第1のカバー部材24に上部保持部37及び下部保持部38が設けられていることにより、ローラ41のシャフト46の上端部において、上部軸受部56のすぐ下部で上部保持部37により後方(背面側)への抜止めがなされ、シャフト46の下端部において、下部軸受部57のすぐ上部で、下部保持部38により後方(背面側)への抜止めがなされる。   Thereby, the roller unit 43 is mounted so as to be fitted into the mounting portion 31. At this time, as shown in FIG. 1, the upper holding portion 37 and the lower holding portion 38 are provided on the first cover member 24 on the back side of the roller unit 43, so that the upper end portion of the shaft 46 of the roller 41 is provided. , The upper holding portion 37 prevents the rearward (rear side) from being removed immediately below the upper bearing portion 56, and the lower end portion of the shaft 46 is located immediately above the lower bearing portion 57 and rearward (by the lower holding portion 38). The back side is secured.

このローラユニット43の取付状態では、図1、図2に示すように、ローラ41が軸方向を上下方向としながら洗濯槽5の内壁部の中段部に回転自在に配置され、自らが回転することにより、洗濯槽5の内壁に沿って洗濯物が円周方向に移動することを促進する。このとき、図13等に示すように、ローラ41(中心軸)は洗濯槽5の内壁部よりも内周側に位置されるのであるが、洗濯槽5の内壁部には、ローラ41の両側部に位置して、ローラ41の露出外周壁面に対し滑らかなカーブを描くように連なり、該ローラ41に向けて洗濯物をスムーズに導くための側部膨出部62、62が設けられている。   In the attached state of the roller unit 43, as shown in FIGS. 1 and 2, the roller 41 is rotatably disposed on the middle step of the inner wall portion of the washing tub 5 with the axial direction being the vertical direction, and rotates itself. Thus, the laundry is promoted to move in the circumferential direction along the inner wall of the washing tub 5. At this time, as shown in FIG. 13 and the like, the roller 41 (center axis) is positioned on the inner peripheral side of the inner wall portion of the washing tub 5. The side bulging portions 62 and 62 for smoothly guiding the laundry toward the roller 41 are provided so as to form a smooth curve with respect to the exposed outer peripheral wall surface of the roller 41. .

本実施形態では、側部膨出部62は、保持部材42に設けられた保持部材側湾曲壁61と第1のカバー部材24に設けられたカバー側湾曲壁39とが連続する形態に設けられる。また、図13に示すように、保持部材側湾曲壁39にあっては、上方から見た曲率が、ローラ41の近傍で、ローラ41の外周面に沿うように変化する。更に、ローラ41の上部に位置して、該ローラ41の上端部に対し滑らかに連なる上部膨出部63が設けられると共に、ローラ41の下部に位置して、該ローラ41の下端部に対し滑らかに連なる下部膨出部64が設けられている。   In the present embodiment, the side bulging portion 62 is provided in a form in which the holding member side curved wall 61 provided on the holding member 42 and the cover side curved wall 39 provided on the first cover member 24 are continuous. . Further, as shown in FIG. 13, in the holding member side curved wall 39, the curvature viewed from above changes so as to follow the outer peripheral surface of the roller 41 in the vicinity of the roller 41. Further, an upper bulging portion 63 that is smoothly connected to the upper end portion of the roller 41 is provided at the upper portion of the roller 41, and is located at the lower portion of the roller 41 to be smooth with respect to the lower end portion of the roller 41. A lower bulging portion 64 is provided in a row.

尚、図14に示すように、ローラユニット43の取付状態では、ローラ41の下面の開口49が、保持部材42の下面等における複数個所の隙間を介して洗濯槽5内と連通している。そのため、洗いやためすすぎの行程では、洗濯槽5内の洗濯水が、矢印cとは反対方向に流れ、開口49からローラ41内部に侵入する。しかし、洗濯槽5内からの排水時には、ローラ41内の洗濯水は、矢印cに示す方向に流れ、開口49を通ってローラ41内から排出されるようになる。   As shown in FIG. 14, when the roller unit 43 is attached, the opening 49 on the lower surface of the roller 41 communicates with the inside of the washing tub 5 through a plurality of gaps on the lower surface of the holding member 42 and the like. Therefore, in the washing or rinsing process, the washing water in the washing tub 5 flows in the direction opposite to the arrow c and enters the roller 41 from the opening 49. However, when draining from the washing tub 5, the washing water in the roller 41 flows in the direction indicated by the arrow c and is discharged from the roller 41 through the opening 49.

ローラユニット43の取付部31からの取外し時には、上記とは逆に、つまみ部59をつまんで、上部片部59aを下方(矢印b方向)に弾性変形させて、嵌合凸部60を嵌合穴36から下方に抜き出し、保持部材42の上部を手前に引き出す(図6参照)。次いで、係止片58を、斜め上方に引き抜いて被係止部35との係止を解くことにより、ローラユニット43を取外すことができる。また、洗濯槽5(取付部31)から取外した後のローラユニット43にあっては、ローラ41を保持部材42から容易に取外し、また取付けることも可能である。   When detaching the roller unit 43 from the mounting portion 31, contrary to the above, the knob portion 59 is pinched and the upper piece 59 a is elastically deformed downward (in the direction of arrow b) to fit the fitting convex portion 60. Withdrawing downward from the hole 36, the upper portion of the holding member 42 is pulled forward (see FIG. 6). Next, the roller unit 43 can be removed by pulling the locking piece 58 obliquely upward and releasing the locking with the locked portion 35. Further, in the roller unit 43 after being removed from the washing tub 5 (attachment portion 31), the roller 41 can be easily detached from the holding member 42 and attached.

次に、上記構成の洗濯機1の作用・効果について述べる。上記構成においては、洗濯槽5の内壁部に、ローラ41を回転自在に設けたので、洗濯槽5内の洗濯物の移動が促進されるようになり、洗濯効果を高めることができる。この場合、ローラ41は軸方向を上下方向にした状態に配置されるので、洗濯槽5の内側壁部において、パルセータ7上といった一部にとどまらず、比較的広い範囲で洗濯物の布回りが良くなり、効果的となる。特に、洗濯槽5内の洗濯物の布量が多い場合には、洗濯物が回りにくくなり、汚れ落ちにむらが生ずる虞があるが、ローラ41によっていわゆる布回りを良好とすることができ、そのような汚れ落ちのむらを解消することができる。   Next, the operation and effect of the washing machine 1 having the above configuration will be described. In the said structure, since the roller 41 was rotatably provided in the inner wall part of the washing tub 5, the movement of the laundry in the washing tub 5 will be accelerated | stimulated and the washing effect can be heightened. In this case, since the roller 41 is arranged in a state where the axial direction is the vertical direction, the laundry is not limited to a part such as the pulsator 7 on the inner wall portion of the washing tub 5, and the laundry around the laundry is relatively wide. Become better and more effective. In particular, when the amount of laundry in the washing tub 5 is large, the laundry becomes difficult to rotate and there is a risk of unevenness in removing dirt. Such uneven soiling can be eliminated.

そして、洗濯槽5のローラ41の両側部には、ローラ41の露出外周壁面に対し滑らかなカーブを描くように連なる側部膨出部62、62が設けられているので、洗濯物は、ローラ41に露出外周壁面に向けてスムーズに導かれるようになる。この結果、本実施形態によれば、洗濯槽5内にローラ41を設けて、布回りを良好にすることができるものであって、ローラ41部分で洗濯物をスムーズに移動させることが可能となるという優れた効果を得ることができる。   And since the side bulging parts 62 and 62 connected so that a smooth curve may be drawn with respect to the exposed outer peripheral wall surface of the roller 41 are provided in the both sides of the roller 41 of the washing tub 5, 41 is smoothly guided toward the exposed outer peripheral wall surface. As a result, according to the present embodiment, the roller 41 can be provided in the washing tub 5 to improve the cloth circumference, and the laundry can be smoothly moved by the roller 41 portion. An excellent effect can be obtained.

このとき、ローラ41をプラスチック製の保持部材42に保持させてローラユニット43として構成し、このローラユニット43を洗濯槽5の内壁面に設けられたプラスチック製の第1のカバー部材24に着脱可能に装着すると共に、側部膨出部62を、保持部材42及び第1のカバー部材24に設ける構成とした。これにより、安価に済ませながら、比較的複雑な形状であっても側部膨出部62を容易に設けることが可能となる。洗濯槽5に対するローラ41(ローラユニット43)の着脱操作などの取扱いもしやすくなる。本実施形態では、側部膨出部62は、保持部材42の保持部材側湾曲壁61と、第1のカバー部材24のカバー側湾曲壁39とが連続する形態に設けられるので、より滑らかなカーブを描くように、広い範囲で側部膨出部62を設けることができる。   At this time, the roller 41 is held by a plastic holding member 42 to constitute a roller unit 43, and this roller unit 43 can be attached to and detached from the first plastic cover member 24 provided on the inner wall surface of the washing tub 5. And the side bulging portion 62 is provided on the holding member 42 and the first cover member 24. Accordingly, the side bulging portion 62 can be easily provided even with a relatively complicated shape while being inexpensive. Handling of the roller 41 (roller unit 43) with respect to the washing tub 5 is facilitated. In the present embodiment, the side bulging portion 62 is provided in a form in which the holding member-side curved wall 61 of the holding member 42 and the cover-side curved wall 39 of the first cover member 24 are continuous. The side bulging portion 62 can be provided in a wide range so as to draw a curve.

特に本実施形態では、保持部材側湾曲壁61にあっては、上方から見た曲率が、ローラ41の近傍で変化するような構成とした。これにより、滑らかなカーブを描く側部膨出部62により、洗濯物をローラ41に向けてスムーズに案内させることができながら、ローラ41近傍においては、布のつまりや引っ掛かりを防止するにより適した形状とすることができる。ローラ41の上部に位置して上部膨出部63を設けたので、ローラ41の上部部分についても、布のつまりや引っ掛かりを防止することができる。ローラ41の下部に位置して下部膨出部64を設けたので、ローラ41の下部部分についても、布のつまりや引っ掛かりを防止することができる。   In particular, in the present embodiment, the holding member side curved wall 61 is configured such that the curvature viewed from above changes in the vicinity of the roller 41. Accordingly, the side bulging portion 62 that draws a smooth curve can smoothly guide the laundry toward the roller 41, but in the vicinity of the roller 41, it is more suitable to prevent clogging or catching of the cloth. It can be a shape. Since the upper bulging portion 63 is provided at the upper portion of the roller 41, the upper portion of the roller 41 can be prevented from being clogged or caught. Since the lower bulging part 64 is provided at the lower part of the roller 41, the lower part of the roller 41 can be prevented from being clogged or caught.

尚、本実施形態では、以下のような作用・効果も得ることができる。即ち、ローラ41は、洗濯槽5に対して取外し可能に設けられているので、ローラ41の取付部近傍に汚れが付着しやすい事情があっても、ユーザは、ローラ41を容易に取外して清掃を行うことができ、清掃性の向上を図ることができる。ローラ41を回転自在に保持するための軸受部56、57が保持部材42に設けられているので、汚れが付着しやすい、言い換えれば汚れが取れにくい複雑形状の部分を、洗濯槽5側にもってこなくても済み、清掃性をより高めることができる。   In the present embodiment, the following actions and effects can also be obtained. That is, since the roller 41 is provided so as to be removable from the washing tub 5, the user can easily remove the roller 41 and clean it even if there is a situation in which dirt is likely to adhere near the attachment portion of the roller 41. It is possible to improve the cleaning performance. Since the bearing members 56 and 57 for holding the roller 41 rotatably are provided on the holding member 42, a portion having a complicated shape that is easily contaminated, in other words, difficult to remove, is placed on the washing tub 5 side. This eliminates the need for cleaning and improves the cleaning performance.

保持部材42には、ローラユニット43を着脱する際に手指をかけるためのつまみ部59が設けられているので、つまみ部59を利用することにより、ローラユニット43の着脱作業を簡単に行うことが可能となる。保持部材42に、ローラ41の両端のシャフト46を枢支する軸受部56、57が設けられているので、軸受部56、57によってローラ41を回転自在に保持することが可能となり、洗濯槽5側に軸受機能を設けずに済ませることができる。   Since the holding member 42 is provided with a knob portion 59 for placing a finger when attaching or detaching the roller unit 43, by using the knob portion 59, the roller unit 43 can be easily attached or detached. It becomes possible. Since the holding member 42 is provided with bearing portions 56 and 57 that pivotally support the shafts 46 at both ends of the roller 41, the roller 41 can be rotatably held by the bearing portions 56 and 57. The bearing function can be dispensed with on the side.

また、ローラ41の端面に、シャフト46の外周側に位置して、保持部材42の矩形開口部53aとの間の隙間を塞ぐように布挟み防止用のリブ52を設けたので、これによれば、ローラ41と矩形開口部53aの上辺部との間の隙間に洗濯物の布が挟まってしまうことを、リブ52によって、防止することができ、より効果的となる。この場合、ローラ41の自重により、ローラ41の上端側は下端側に比べて保持部材42との間に隙間が空きやすいので、リブ52を、ローラ41の上側の端面に設けることにより、布挟み防止に、より一層効果的となる。   Further, since the ribs 52 for preventing the pinching of the cloth are provided on the end surface of the roller 41 so as to close the gap between the rectangular opening 53a of the holding member 42 and located on the outer peripheral side of the shaft 46, For example, the rib 52 can prevent the laundry cloth from being caught in the gap between the roller 41 and the upper side of the rectangular opening 53a, which is more effective. In this case, since the roller 41 has its own weight, the upper end side of the roller 41 is more likely to have a gap between the holding member 42 and the lower end side. Therefore, the rib 52 is provided on the upper end surface of the roller 41 to sandwich the cloth. It becomes even more effective for prevention.

しかも、リブ52を、保持部材42に対し、ローラ41の正規の向きでは保持可能であるが、逆向きでは保持不能とする誤組立防止部材を兼用するように構成した。これにより、保持部材42に対しローラ41を逆向きに組付ける誤組立を未然に防止すことができる。リブ52が誤組立防止部材を兼用するので、リブ52とは別途に誤組立防止部材を設ける場合と比較して、構成を簡単に済ませることができる。   In addition, the rib 52 can be held with respect to the holding member 42 in the normal direction of the roller 41, but is also configured to serve as a misassembly preventing member that cannot be held in the reverse direction. Thereby, it is possible to prevent an erroneous assembly in which the roller 41 is assembled in the reverse direction with respect to the holding member 42. Since the rib 52 also serves as a misassembly prevention member, the configuration can be simplified as compared with the case where the misassembly prevention member is provided separately from the rib 52.

前記ローラ41は、ローラ主部44と、このローラ主部44の一端部に取付けられるキャップ部45とを含み、キャップ部45をローラ主部44に対し、嵌合した後回転させることにより取付ける構成とした。これにより、ローラ主部44に対しキャップ部45を簡単に取付けることが可能となり、ローラ41の組立作業を容易に行うことができる。より具体的には、ローラ主部44の内周面に係合ピン44bを設けると共に、キャップ部45に、係合凹部50bと、該係合凹部50bに向けて係合ピン44bを相対的に案内するカム部50aを設けるようにした。これにより、比較的簡単な構成で、組立作業が容易なローラ41を実現することができる。   The roller 41 includes a roller main portion 44 and a cap portion 45 attached to one end portion of the roller main portion 44, and the cap portion 45 is attached to the roller main portion 44 by being rotated after being fitted. It was. Accordingly, the cap portion 45 can be easily attached to the roller main portion 44, and the assembly work of the roller 41 can be easily performed. More specifically, the engagement pin 44b is provided on the inner peripheral surface of the roller main portion 44, and the engagement recess 50b is relatively placed on the cap portion 45 toward the engagement recess 50b. A cam portion 50a for guiding is provided. Thereby, the roller 41 with a relatively simple configuration and easy assembly work can be realized.

前記第1のカバー部材14の取付部31に、保持部材42との協働によりローラ41のシャフト46を抜け止め状態に保持する上部保持部37及び下部保持部38を設けるようにした。これにより、保持部材42単独でシャフト46を保持する場合と異なり、保持部材42の軸受部56、57の構造の簡単化を図ることができ、取外し時におけるローラユニット43からのローラ41の取外しも容易となる。   The mounting portion 31 of the first cover member 14 is provided with an upper holding portion 37 and a lower holding portion 38 that hold the shaft 46 of the roller 41 in a state of being prevented from coming off in cooperation with the holding member 42. Accordingly, unlike the case where the shaft 46 is held by the holding member 42 alone, the structure of the bearing portions 56 and 57 of the holding member 42 can be simplified, and the roller 41 can be removed from the roller unit 43 at the time of removal. It becomes easy.

本実施形態では、ローラ41を中空状に構成すると共に、その下端面に、開口49を設けて構成したので、ローラ41内に洗濯液が侵入しても、その洗濯液を開口49から容易に排出することができ、ローラ41内に洗濯液が溜まったりすることを未然に防止することができる。ローラ41自体を軽量で安価に製造できることは勿論である。このとき、ローラ41の開口49は、軸方向に見てシャフト46を保持する筒部48から外れた位置に配置されているので、ローラ41(ローラ主部44)をプラスチック成型品から構成する際に、開口49の形成が容易となる。   In the present embodiment, the roller 41 is formed in a hollow shape, and the opening 49 is provided in the lower end surface thereof. Therefore, even if the washing liquid enters the roller 41, the washing liquid can be easily discharged from the opening 49. It can discharge | emit and it can prevent that a washing liquid accumulates in the roller 41 beforehand. Of course, the roller 41 itself can be manufactured at a low cost with a light weight. At this time, since the opening 49 of the roller 41 is disposed at a position away from the cylindrical portion 48 that holds the shaft 46 when viewed in the axial direction, the roller 41 (roller main portion 44) is formed of a plastic molded product. In addition, the opening 49 can be easily formed.

以上に加え、更に、本実施形態では、第1のカバー部材24が、ローラ41の取付けと、水路23の形成との双方の機能を果たすようになり、その分、構成の簡単化、省スペース化を図ることができる。このとき、ローラ41は、水路23とは分離された形態で設けられるので、水路23の設計によって、水路23の水の流れる方向や吐出位置、流量の調整(設定)等が容易となる。水路23中にローラ41が位置している場合と異なり、ローラ41にリントが引っ掛かったり、詰まったりしにくく、水路の良好な流れを確保できる。本実施形態では、第1のカバー部材24に設けられた開口部31aによって、ローラ41と洗濯槽5の内周面との間のクリアランスを確保することができ、ローラ41の配置スペースを洗濯槽5の径方向に小さく済ませることができる。   In addition to the above, in the present embodiment, the first cover member 24 performs both functions of attaching the roller 41 and forming the water channel 23, thereby simplifying the configuration and saving space. Can be achieved. At this time, since the roller 41 is provided in a form separated from the water channel 23, the water flow direction, the discharge position, the flow rate adjustment (setting) and the like of the water channel 23 are facilitated by the design of the water channel 23. Unlike the case where the roller 41 is positioned in the water channel 23, lint is not easily caught or clogged by the roller 41, and a good flow of the water channel can be secured. In the present embodiment, the clearance between the roller 41 and the inner peripheral surface of the washing tub 5 can be secured by the opening 31 a provided in the first cover member 24, and the arrangement space of the roller 41 is reduced to the washing tub. 5 can be reduced in the radial direction.

また、前記第1のカバー部材24と洗濯槽5との間には、開口部31aの外側を囲む位置に内側パッキン34が設けられているので、水路23は開口部31aの外側に設けられることになり、開口部31aを囲む内側パッキン34によってシールされるので、開口部31aにおける洗濯水の漏れを防止することができる。第1のカバー部材24内の水路23は、ローラ41の両側部に位置して設けられているので、水路23及びローラ41を比較的コンパクトに配置しながら、水路23の断面積(水の流量)を大きく確保することができる。   Moreover, since the inner packing 34 is provided between the first cover member 24 and the washing tub 5 at a position surrounding the outer side of the opening 31a, the water channel 23 is provided on the outer side of the opening 31a. Since it is sealed by the inner packing 34 surrounding the opening 31a, leakage of washing water in the opening 31a can be prevented. Since the water channel 23 in the first cover member 24 is provided on both sides of the roller 41, the cross-sectional area of the water channel 23 (flow rate of water) is disposed while the water channel 23 and the roller 41 are disposed relatively compactly. ) Can be secured greatly.

(2)第2、第3の実施形態、その他の実施形態
図15は、第2の実施形態を示すもので、上記第1の実施形態と異なるところは、次の点にある。即ち、洗濯槽91の内周壁部には、ローラ92が、その中心軸が洗濯槽91の内周側に位置して回転自在に設けられている。洗濯槽91の内周壁部には、ローラ92の図で左右の両側部に位置して、ローラ92の露出外周壁面に対し滑らかなカーブを描くように連なり、該ローラ92に向けて洗濯物をスムーズに導くための側部膨出部93、94が設けられている。
(2) Second and Third Embodiments and Other Embodiments FIG. 15 shows a second embodiment. The difference from the first embodiment is as follows. That is, the roller 92 is rotatably provided on the inner peripheral wall portion of the washing tub 91 with its central axis positioned on the inner peripheral side of the washing tub 91. The inner circumferential wall portion of the washing tub 91 is located on both the left and right sides in the drawing of the roller 92, and continues to draw a smooth curve with respect to the exposed outer circumferential wall surface of the roller 92, and the laundry is directed toward the roller 92. Side bulges 93 and 94 are provided for smooth guidance.

これら側部膨出部93、94は、上方から見て、内周側に緩やかに膨らむように湾曲した薄板状をなしている。そのうち図で左側の側部膨出部93は、基端側(図で左端側)の辺部がヒンジにより枢支され、図15(a)に示す押出位置と、図15(b)に示す後退位置との間で、上下軸を中心に回動(揺動)変位可能とされている。側部膨出部93の押出位置では、ローラ92の左側部に位置される先端辺部側が、ローラ92の中心軸に対して、洗濯槽91の内周側に来るようになっており、後退位置では、先端辺部側が、ローラ92の中心軸に対して外周側に来るようになっている。   These side bulging portions 93 and 94 have a thin plate shape that is curved so as to bulge gently toward the inner periphery as viewed from above. Of these, the left side bulging portion 93 in the figure is pivotally supported by a hinge at the base end side (left end side in the drawing), and is shown in FIG. 15 (a) and in FIG. 15 (b). It can be rotated (oscillated) around the vertical axis between the retracted position. At the push-out position of the side bulging portion 93, the tip side portion located on the left side of the roller 92 comes to the inner peripheral side of the washing tub 91 with respect to the central axis of the roller 92, and moves backward. At the position, the tip side is on the outer peripheral side with respect to the central axis of the roller 92.

同様に、図で右側の側部膨出部94は、基端側(図で右端側)の辺部がヒンジにより枢支され、図15(b)に示す押出位置と、図15(a)に示す後退位置との間で、上下軸を中心に回動(揺動)変位可能とされている。そして、洗濯槽91の壁部には、側部膨出部93の基端側近傍の背面側に位置して、左通水孔91aが形成されていると共に、側部膨出部94の基端側近傍の背面側に位置して、右通水孔91bが形成されている。これら左通水孔91a及び右通水孔91bは、洗濯槽91が回転することに伴い、洗濯槽91の外周面と水槽(図示せず)との間から、回転方向に応じて洗濯水を吸込み或いは排出するようになっている。   Similarly, the side bulge portion 94 on the right side in the figure is pivotally supported by a hinge on the base end side (right end side in the figure), and the extrusion position shown in FIG. 15 (b) and FIG. 15 (a). Between the retracted position shown in FIG. 1 and can be rotated (oscillated) about the vertical axis. The wall portion of the washing tub 91 is located on the back side in the vicinity of the base end side of the side bulging portion 93, and a left water passage hole 91 a is formed. A right water passage hole 91b is formed on the back side near the end side. The left water passage hole 91a and the right water passage hole 91b allow the washing water to flow from the space between the outer peripheral surface of the washing tub 91 and the water tub (not shown) according to the rotation direction as the washing tub 91 rotates. Intake or discharge.

上記構成においては、図15(a)に示すように、洗濯槽91が上から見て反時計回り方向(矢印CCW方向)に回転すると、矢印dで示すように、左通水孔91aから内側に洗濯水が吸込まれ、その水圧により左側の側部膨出部93が押出位置に変位される。また、矢印eで示すように、右通水孔91bから外側に洗濯水が排出され、右側の側部膨出部94の裏面側は負圧となって側部膨出部94が後退位置に変位される。この状態では、洗濯槽91内では、相対的に時計回り方向(矢印CW方向)の回転水流が生じ、洗濯物は矢印CW方向に移動する。これにて、洗濯物を、押出位置にある左側の側部膨出部93によってローラ92部分にスムーズに案内することができる。   In the above configuration, as shown in FIG. 15A, when the washing tub 91 rotates in the counterclockwise direction (arrow CCW direction) when viewed from above, as shown by the arrow d, the inner side from the left water passage hole 91a. Washing water is sucked into the left side, and the left side bulge 93 is displaced to the pushing position by the water pressure. Further, as shown by the arrow e, the washing water is discharged to the outside from the right water passage hole 91b, the back side of the right side bulge portion 94 becomes negative pressure, and the side bulge portion 94 is in the retracted position. Displaced. In this state, a rotating water flow in the clockwise direction (arrow CW direction) is relatively generated in the washing tub 91, and the laundry moves in the arrow CW direction. Thus, the laundry can be smoothly guided to the roller 92 portion by the left side bulging portion 93 at the pushing position.

これに対し、図15(b)に示すように、洗濯槽91が上から見て時計回り方向(矢印CW方向)に回転し、矢印fで示すように、右通水孔91bから内側に洗濯水が吸込まれ、その水圧により右側の側部膨出部94が押出位置に変位される。また、矢印gで示すように、左通水孔91aから外側に洗濯水が排出され、左側の側部膨出部93の裏面側は負圧となって側部膨出部93が後退位置に変位される。この状態では、洗濯槽91内では、相対的に反時計回り方向(矢印CCW方向)の回転水流が生じ、洗濯物は矢印CCW方向に移動する。これにて、洗濯物を、押出位置にある右側の側部膨出部94によってローラ92部分にスムーズに案内することができる。   On the other hand, as shown in FIG. 15B, the washing tub 91 rotates in the clockwise direction (arrow CW direction) when viewed from above, and as shown by the arrow f, the washing tub 91 moves inward from the right water hole 91b. Water is sucked in, and the right side bulging portion 94 is displaced to the pushing position by the water pressure. Also, as shown by the arrow g, the washing water is discharged to the outside from the left water passage hole 91a, the back side of the left side bulge portion 93 becomes negative pressure, and the side bulge portion 93 is in the retracted position. Displaced. In this state, a rotating water flow in the counterclockwise direction (arrow CCW direction) is relatively generated in the washing tub 91, and the laundry moves in the arrow CCW direction. Thus, the laundry can be smoothly guided to the roller 92 portion by the right side bulging portion 94 at the pushing position.

このような第2の実施形態によれば、回転水流の方向の上流側の側部膨出部93、94が押出位置に位置されるようになるので、洗濯物をローラ92の外周壁面に向けてスムーズに移動させることが可能となる。また、回転水流の下流側では、側部膨出部93、94は後退位置に来るので、洗濯槽5内の空間(容積)が無用に狭くなることを防止することができる。水流(水圧)によって側部膨出部93、94を位置変位させることができ、側部膨出部93、94の位置変位のための駆動源などの特別な機構を設けずに済ませることができる。   According to the second embodiment as described above, the side bulging portions 93 and 94 on the upstream side in the direction of the rotating water flow are positioned at the extrusion position, so that the laundry is directed toward the outer peripheral wall surface of the roller 92. Can be moved smoothly. Moreover, since the side bulging parts 93 and 94 come to the retreat position on the downstream side of the rotating water flow, it is possible to prevent the space (volume) in the washing tub 5 from being unnecessarily narrowed. The side bulging portions 93 and 94 can be displaced by water flow (water pressure), and a special mechanism such as a drive source for displacing the side bulging portions 93 and 94 can be dispensed with. .

図16は、第3の実施形態を示すもので、上記第2の実施形態とは次の点が異なる。即ち、本実施形態では、洗濯槽96の内周壁部には、ローラ97が、その中心軸が洗濯槽96の内周側に位置して回転自在に設けられている。洗濯槽96の内周壁部には、ローラ97の図で左右の両側部に位置して、ローラ97の露出外周壁面に対し滑らかなカーブを描くように連なり、該ローラ97に向けて洗濯物をスムーズに導くための左右の側部膨出部98、99が設けられている。   FIG. 16 shows the third embodiment, which differs from the second embodiment in the following points. That is, in this embodiment, the roller 97 is provided on the inner peripheral wall portion of the washing tub 96 so that the central axis thereof is positioned on the inner peripheral side of the washing tub 96 and is rotatable. The inner circumferential wall portion of the washing tub 96 is located on both the left and right sides in the drawing of the roller 97, and continues to draw a smooth curve with respect to the exposed outer circumferential wall surface of the roller 97, and the laundry is directed toward the roller 97. Left and right side bulges 98 and 99 are provided for smooth guidance.

これら側部膨出部98、99は、上方から見て、内周側に緩やかに膨らむように湾曲した薄板状をなし、洗濯槽96内に固定的に設けられている。このとき、側部膨出部98、99の先端部は、ローラ97との間に隙間を有した形態で設けられている。そして、洗濯槽96の壁部には、側部膨出部98、99の基端側近傍の背面側に位置して、洗濯槽96の外周面と水槽(図示せず)との間から、内側に洗濯水を吸込むための通水孔96a,96bが形成されている
この構成においては、洗濯槽96の回転により、図に矢印h、矢印iで示すように、洗濯槽96と水槽との間の洗濯液が、通水孔96a,96bから側部膨出部98、99の裏面側に吸込まれ、ローラ97と側部膨出部98、99との間の隙間を通って洗濯槽96内に向けて流れる水流が生成される。従って、本実施形態によれば、側部膨出部98、99によって、洗濯物をローラ97の外周壁面に向けてスムーズに移動させることが可能となると共に、ローラ97と側部膨出部98、99との間の隙間に洗濯物が挟まってしまうことを効果的に防止することができる。
These side bulging portions 98 and 99 have a thin plate shape that is curved so as to bulge gently toward the inner peripheral side when viewed from above, and are fixedly provided in the washing tub 96. At this time, the front end portions of the side bulging portions 98 and 99 are provided in a form having a gap with the roller 97. And in the wall part of the washing tub 96, it is located in the back side near the base end side of the side bulging parts 98 and 99, from between the outer peripheral surface of the washing tub 96 and the water tub (not shown), In this configuration, water passage holes 96a and 96b for sucking washing water are formed on the inner side. As shown by arrows h and i in the figure, the washing tub 96 and the water tub are rotated by the rotation of the washing tub 96. The washing liquid in between is sucked into the back surface side of the side bulging portions 98 and 99 from the water passage holes 96a and 96b, and passes through the gap between the roller 97 and the side bulging portions 98 and 99. A water stream that flows inward is generated. Therefore, according to this embodiment, the laundry can be smoothly moved toward the outer peripheral wall surface of the roller 97 by the side bulge portions 98 and 99, and the roller 97 and the side bulge portion 98 can be moved. , 99 can effectively prevent the laundry from being caught in the gap between them.

尚、側部膨出部の形状や構造については、様々な変形例が考えられ、例えば側部膨出部を、保持部材だけに設ける構成や、カバー部材だけに設ける構成としても良い。ローラの構成についても、様々な変形例が考えられ、シャフトを設けずに端面部に軸部を一体に設ける構成としたり、ローラの外周面を、外径寸法が上端部で最も大きく下方に行くにつれ次第に小さくなるようなテーパ面状に構成したりしても良い。さらにはローラを保持する保持部材の構成についても、様々な変更が可能である。また、上記第1の実施形態では、ローラユニットを構成する保持部材にローラを回転可能に保持する構成としたが、洗濯槽側に枢支部を設けて、ローラを回転自在に支持する構成としても良い。これにより、ユニット化した場合と比べて、部品数も少なく抑えられ、簡単で安価な構成で済ませることができる。   Various modifications can be considered for the shape and structure of the side bulging portion. For example, the side bulging portion may be provided only on the holding member or may be provided only on the cover member. Various variations of the configuration of the roller are conceivable, such as a configuration in which a shaft portion is integrally provided on the end surface portion without providing a shaft, or the outer peripheral surface of the roller has the largest outer diameter dimension at the upper end portion and goes downward. It may be configured to have a tapered surface shape that gradually decreases as the time elapses. Further, various changes can be made to the configuration of the holding member that holds the roller. Moreover, in the said 1st Embodiment, although it was set as the structure which hold | maintains a roller rotatably in the holding member which comprises a roller unit, it is also possible to provide a pivot part on the washing tub side and to support the roller rotatably. good. Thereby, compared with the case where it unitizes, the number of parts can also be restrained small and it can be completed by the simple and cheap structure.

上記実施形態は、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。本実施形態およびその変形は、発明の範囲および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。   The above embodiments are presented as examples, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

図面中、1は洗濯機、5、91、96は洗濯槽、7はパルセータ、23は水路、24は第1のカバー部材(カバー部材)、31は取付部、31aは開口部、33は外側パッキン、34は内側パッキン、35は被係止部、36は嵌合穴、37は上部保持部、38は下部保持部、39はカバー側湾曲壁(湾曲壁)、41、92、97はローラ、42は保持部材、43はローラユニット、44はローラ主部、44aは係合ピン、45はキャップ部、46はシャフト、48は筒部、49は開口、50aはカム部、50bは係合凹部、52はリブ、53は膨出部、53aは矩形開口部、56は上部軸受部、57は下部軸受部、58は係止部、59はつまみ部、60は嵌合凸部、61は保持部材側湾曲壁(湾曲壁)、62、93、94、98、99は側部膨出部、63は上部膨出部、64は下部膨出部を示す。   In the drawings, 1 is a washing machine, 5, 91 and 96 are washing tubs, 7 is a pulsator, 23 is a water channel, 24 is a first cover member (cover member), 31 is an attachment portion, 31a is an opening portion, and 33 is an outside. Packing, 34 inner packing, 35 locked portion, 36 fitting hole, 37 upper holding portion, 38 lower holding portion, 39 side cover curved wall (curved wall), 41, 92, 97 rollers , 42 is a holding member, 43 is a roller unit, 44 is a roller main part, 44a is an engaging pin, 45 is a cap part, 46 is a shaft, 48 is a cylinder part, 49 is an opening, 50a is a cam part, and 50b is engaged. Recessed part, 52 is a rib, 53 is a bulging part, 53a is a rectangular opening part, 56 is an upper bearing part, 57 is a lower bearing part, 58 is a locking part, 59 is a knob part, 60 is a fitting convex part, 61 is Holding member side curved wall (curved wall), 62, 93, 94, 98, 99 are side portions Out portion, 63 upper swollen portion, 64 denotes a lower bulging portion.

Claims (8)

洗濯物が収容され洗濯が行われる洗濯槽と、
前記洗濯槽の内壁部に、外周壁面の一部が該洗濯槽内に露出した状態で、軸方向を上下方向として回転自在に設けられ、回転により洗濯物の移動を促進するためのローラと、
前記洗濯槽の前記ローラの両側部に位置して設けられ、前記ローラの露出外周壁面に対し滑らかなカーブを描くように連なり、該ローラに向けて洗濯物をスムーズに導くための側部膨出部とを備えてなる洗濯機。
A laundry tub in which laundry is stored and laundered;
On the inner wall portion of the washing tub, with a part of the outer peripheral wall surface exposed in the washing tub, the roller is provided rotatably with the axial direction as the up and down direction, and promotes the movement of the laundry by rotation,
Side bulges that are provided on both sides of the roller of the washing tub, are connected to form a smooth curve with respect to the exposed outer peripheral wall surface of the roller, and smoothly guide the laundry toward the roller And a washing machine.
前記ローラは、保持部材に保持されてローラユニットとされ、
前記ローラユニットが、前記洗濯槽の内壁面に設けられたプラスチック製のカバー部材に装着されるように構成され、
前記側部膨出部は、前記保持部材及び/又はカバー部材に設けられる請求項1記載の洗濯機。
The roller is held by a holding member to form a roller unit,
The roller unit is configured to be attached to a plastic cover member provided on an inner wall surface of the washing tub,
The washing machine according to claim 1, wherein the side bulging portion is provided on the holding member and / or the cover member.
前記側部膨出部は、前記保持部材に設けられた湾曲壁と前記カバー部材に設けられた湾曲壁とが連続する形態に設けられる請求項2記載の洗濯機。   The washing machine according to claim 2, wherein the side bulging portion is provided in a form in which a curved wall provided on the holding member and a curved wall provided on the cover member are continuous. 前記保持部材に設けられた湾曲壁にあっては、上方から見た曲率が、前記ローラの近傍で変化する請求項3記載の洗濯機。   The washing machine according to claim 3, wherein the curvature of the curved wall provided in the holding member changes near the roller. 前記洗濯槽の前記ローラの上部に位置して、前記ローラの上端部に対し滑らかに連なる上部膨出部が設けられている請求項1から4のいずれか一項に記載の洗濯機。   The washing machine according to any one of claims 1 to 4, further comprising an upper bulging portion that is located above the roller of the washing tub and that is smoothly connected to an upper end portion of the roller. 前記洗濯槽の前記ローラの下部に位置して、前記ローラの下端部に対し滑らかに連なる下部膨出部が設けられている請求項1から5のいずれか一項に記載の洗濯機。   The washing machine according to any one of claims 1 to 5, wherein a lower bulging portion is provided at a lower portion of the roller of the washing tub and is smoothly connected to a lower end portion of the roller. 前記側部膨出部は、前記ローラの側部に位置される先端辺部側が、前記ローラの中心軸に対して、前記洗濯槽の内周側に来る押出位置と、外周側に来る後退位置との間で変位可能に構成されると共に、該洗濯槽内に生成される洗濯液の回転水流の方向に応じて位置変位する請求項1から6のいずれか一項に記載の洗濯機。   The side bulging portion includes a push-out position where the tip side located on the side of the roller is on the inner peripheral side of the washing tub and a retreat position on the outer peripheral side with respect to the central axis of the roller. The washing machine according to any one of claims 1 to 6, wherein the washing machine is configured so as to be displaceable between the two and the position and is displaced in accordance with a direction of a rotating water flow of the washing liquid generated in the washing tub. 前記洗濯槽内の洗濯液が、前記側部膨出部の裏面側から、前記ローラと該側部膨出部との間の隙間を通って該洗濯槽内に向けて流れる水流が生成される請求項1から7のいずれか一項に記載の洗濯機。   A water flow is generated in which the washing liquid in the washing tub flows from the back side of the side bulging portion through the gap between the roller and the side bulging portion into the washing tub. The washing machine according to any one of claims 1 to 7.
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JPH04215795A (en) * 1990-12-13 1992-08-06 Sanyo Electric Co Ltd Washing machine
JPH1057673A (en) * 1996-06-29 1998-03-03 Daewoo Electron Co Ltd Washing machine
JPH10118382A (en) * 1996-10-25 1998-05-12 Sharp Corp Electric washing machine
US20120180532A1 (en) * 2011-01-16 2012-07-19 Samsung Electronics Co., Ltd. Washing machine and pulsator thereof

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