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JP7503452B2 - Drum type washing machine - Google Patents

Drum type washing machine Download PDF

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Publication number
JP7503452B2
JP7503452B2 JP2020144266A JP2020144266A JP7503452B2 JP 7503452 B2 JP7503452 B2 JP 7503452B2 JP 2020144266 A JP2020144266 A JP 2020144266A JP 2020144266 A JP2020144266 A JP 2020144266A JP 7503452 B2 JP7503452 B2 JP 7503452B2
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Japan
Prior art keywords
stay
housing
drum
outer tub
washing machine
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JP2022039309A (en
Inventor
優 金内
哲也 山本
真理 黒澤
真 井村
宏史 河田
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Hitachi Global Life Solutions Inc
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Hitachi Global Life Solutions Inc
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Priority to JP2020144266A priority Critical patent/JP7503452B2/en
Priority to CN202180035670.5A priority patent/CN115605642A/en
Priority to PCT/JP2021/007178 priority patent/WO2022044378A1/en
Publication of JP2022039309A publication Critical patent/JP2022039309A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02Rotary receptacles, e.g. drums
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis

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

Description

本発明は、ドラム式洗濯機に関する。 The present invention relates to a drum-type washing machine.

本技術分野の背景技術として、特開平2009-50684号公報(特許文献1)がある。この公報には、「筐体と、筐体の内側に設けられ、支持体回転軸を中心に回転する支持体と、支持体の内側に設けられ、支持体回転軸と異なった方向の洗濯槽回転軸を中心に回転する、内側に洗濯物が収納可能な洗濯槽と、筐体と洗濯槽との間に設けられ、洗濯槽の洗濯槽回転輪が転動する洗濯槽転動レールとを備え、支持体が支持体回転軸を中心に回転すると、洗濯槽回転輪が洗濯槽転動レールに転動して、洗濯槽が支持体回転軸および洗濯槽回転軸を中心に回転する。」と記載されている(要約参照)。 JP 2009-50684 A (Patent Document 1) is a background technology in this technical field. This publication states that "the washing machine comprises a housing, a support body provided inside the housing and rotating around a support body rotation axis, a washing tub provided inside the support body and rotating around a washing tub rotation axis in a different direction from the support body rotation axis, capable of storing laundry inside, and a washing tub rolling rail provided between the housing and the washing tub and on which the washing tub rotating wheel of the washing tub rolls, and when the support body rotates around the support body rotation axis, the washing tub rotating wheel rolls on the washing tub rolling rail, and the washing tub rotates around the support body rotation axis and the washing tub rotation axis" (see abstract).

特開2009-50684号公報JP 2009-50684 A

洗濯機の製造コストを低減するために、洗濯機の筐体の薄肉化を図りたい。
しかしながら、特許文献1に開示の技術では、洗濯機の筐体の薄肉化を図ると筐体の剛性が低減し、洗濯機が振動しやすくなる。
そこで、本発明は、筐体の薄肉化を図っても振動しにくいドラム式洗濯機を提供することを課題とする。
In order to reduce the manufacturing costs of washing machines, it is desirable to make the housing of the washing machine thinner.
However, with the technology disclosed in Patent Document 1, making the housing of the washing machine thinner reduces the rigidity of the housing, making the washing machine more susceptible to vibration.
SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a drum-type washing machine that is less susceptible to vibration even when the housing is made thinner.

上記課題を解決するため、本発明は、左右の板が側板となる筐体と、前記筐体内に支持され内部に液体を貯留可能な外槽と、前記筐体の上方に設けられた四角枠形状のステーと、一端を前記外槽に接続し他端を前記側板の上方で前記ステーと接続して、前記外槽を懸架する懸架部とを備え、前記四角枠形状のステーは、前記筐体の前方に位置する前方ステーと、前記左右両方の側板の上方にそれぞれ位置する側面ステーと、前記筐体の後方に位置する後方ステーとを備え、前記側面ステーが前記前方ステー及び前記後方ステーと締結されていることにより、前記四角枠形状のステーは四角枠形状をなしていて、前記四角枠形状のステーと前記側板とは当該四角枠形状のステーの四隅で締結されていて、前記前方ステー、前記側面ステー及び前記後方ステーは、互いに同じ幅サイズ、同じ厚さであることを特徴とする。
In order to solve the above problems, the present invention provides a housing having left and right panels as side panels, an outer tank supported within the housing and capable of storing liquid therein, a square-frame-shaped stay provided above the housing, and a suspension section that suspends the outer tank by connecting one end to the outer tank and the other end to the stay above the side panel , the square-frame-shaped stay comprising a front stay located at the front of the housing, side stays located above both the left and right side panels, and a rear stay located at the rear of the housing, the side stays being fastened to the front stay and the rear stay, such that the square-frame-shaped stay has a square frame shape, the square-frame-shaped stay and the side panels are fastened at the four corners of the square-frame-shaped stay, and the front stay, the side stays and the rear stay have the same width and thickness .

本発明によれば、筐体の薄肉化を図っても振動しにくいドラム式洗濯機を提供することができる。
上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。
According to the present invention, it is possible to provide a drum-type washing machine that is less susceptible to vibration even when the housing is made thinner.
Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments.

本発明の実施例1であるドラム式洗濯乾燥機の斜視図である。1 is a perspective view of a drum type washer/dryer according to a first embodiment of the present invention; 本発明の実施例1であるドラム式洗濯乾燥機の上面カバーを外して上面から見た模式図である。1 is a schematic diagram of a drum type washer-dryer according to a first embodiment of the present invention, seen from above with a top cover removed. FIG. 本発明の実施例1であるドラム式洗濯乾燥機の内部構造を示す側面図である。1 is a side view showing an internal structure of a drum type washer/dryer according to a first embodiment of the present invention. 本発明の実施例1であるドラム式洗濯乾燥機の作用を説明するグラフである。4 is a graph illustrating the operation of the drum type washer/dryer according to the first embodiment of the present invention. 本発明の実施例2であるドラム式洗濯乾燥機の上面カバーを外して上面から見た模式図である。本発明の一実施例である。1 is a schematic diagram of a drum type washer/dryer according to a second embodiment of the present invention, as viewed from above with a top cover removed. 本発明の実施例2であるドラム式洗濯乾燥機の上面カバーを外して上面から見た模式図である。FIG. 11 is a schematic diagram of a drum type washer/dryer according to a second embodiment of the present invention, as viewed from above with a top cover removed.

以下、本発明の実施例について図面を用いて説明する。
まず、本実施例の課題について説明する。ドラム式洗濯機の製造コストを低減するため、筐体の薄肉化が求められている。筐体を薄肉化する場合、筐体を構成する面積割合が高い、左右の側板の薄肉化により、高い製造コスト低減効果を得ることがきる。外槽を支持している吊りばねは、側板上方の装着部材に接続しているため、外槽が脱水工程で振動した際、吊りばねから装着部材を介して、側板に振動が伝達する。側板に振動が伝達すると、筐体も振動する。高い製造コスト低減効果を得るため、筐体を構成する側板を薄肉化した場合、筐体の剛性が低下し、筐体振動が増加しやすくなる。筐体振動が増加すると、洗濯機の使用時の不快感が増加し、また、洗濯機がキッチンカウンターに収めるビルトインタイプの場合には、キッチンカウンター側壁と洗濯機とが衝突して、異音の発生や、洗濯機またはキッチンカウンターが破損する恐れがある。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, the problem of this embodiment will be described. In order to reduce the manufacturing cost of a drum-type washing machine, it is required to make the housing thinner. When making the housing thinner, a high manufacturing cost reduction effect can be obtained by making the left and right side panels, which have a high area ratio constituting the housing, thinner. Since the suspension spring supporting the outer tub is connected to the mounting member above the side panels, when the outer tub vibrates in the spin-drying process, the vibration is transmitted from the suspension spring to the side panels via the mounting member. When the vibration is transmitted to the side panels, the housing also vibrates. When the side panels constituting the housing are made thinner in order to obtain a high manufacturing cost reduction effect, the rigidity of the housing decreases, and the housing vibration is likely to increase. When the housing vibration increases, the discomfort during use of the washing machine increases, and in the case of a built-in type washing machine that is installed in a kitchen counter, the washing machine may collide with the side wall of the kitchen counter, causing abnormal noise and damage to the washing machine or the kitchen counter.

前記特許文献1に記載の技術は、装着部材によって、外槽を支持する箇所の剛性は十分となっている。しかしながら、前記特許文献1は筐体全体の変形に関する記載がされておらず、側板の薄肉化によるコスト低減を図る場合、筐体の剛性が低下するため、筐体振動が増加し、不快感の増加や前述した異音や破損が発生する恐れがある。
そこで、以下では、筐体の薄肉化を図っても振動しにくいドラム式洗濯機について説明する。
In the technology described in Patent Document 1, the mounting members provide sufficient rigidity at the points that support the outer tub. However, Patent Document 1 does not mention deformation of the entire housing, and when reducing costs by thinning the side panels, the rigidity of the housing decreases, which increases the vibration of the housing, and there is a risk of increased discomfort and the occurrence of the above-mentioned abnormal noise and breakage.
Therefore, the following describes a drum-type washing machine that is less susceptible to vibration even if the housing is made thinner.

以下、本発明を実施するための実施例1について、図面を参照して説明する。図1は本実施例1におけるドラム式洗濯乾燥機(ドラム式洗濯機)100の斜視図、図2はドラム式洗濯乾燥機100の上面カバー1eを外して上面から見た模式図、図3はドラム式洗濯乾燥機100の内部構造を示す側面図をそれぞれ示す。図1から図3を用いて、ドラム式洗濯乾燥機100の構成と動作を説明する。なお、以下の各実施例においては図面中に適宜ドラム式洗濯乾燥機100から視た前後左右上下の方向を矢印で示している。 A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a drum type washer-dryer (drum type washing machine) 100 in this embodiment, FIG. 2 is a schematic diagram of the drum type washer-dryer 100 viewed from above with the top cover 1e removed, and FIG. 3 is a side view showing the internal structure of the drum type washer-dryer 100. The configuration and operation of the drum type washer-dryer 100 will be described using FIG. 1 to FIG. 3. In each of the following embodiments, arrows are used in the drawings to indicate the front, back, left, right, up and down directions as viewed from the drum type washer-dryer 100 as appropriate.

図1に示すように、ドラム式洗濯乾燥機100の外郭を構成する筐体1は、ベース1aの上に取付けられており、左右の側板1b(図1では右の側板のみを図示)、前面カバー1c、背面カバー1d(図3参照)、上面カバー1e、下部前面カバー1fを備えている。上面カバー1eには、水道栓からドラム式洗濯乾燥機100に給水するための給水ホース接続口30を設けている。筐体1は、ベース1aを含めて箱状の外枠を形成し、外枠として十分な強度を有している。 As shown in FIG. 1, the housing 1 that constitutes the outer shell of the drum type washer-dryer 100 is attached to the base 1a and includes left and right side panels 1b (only the right side panel is shown in FIG. 1), a front cover 1c, a rear cover 1d (see FIG. 3), a top cover 1e, and a lower front cover 1f. The top cover 1e is provided with a water supply hose connection port 30 for supplying water from a water faucet to the drum type washer-dryer 100. The housing 1, including the base 1a, forms a box-shaped outer frame, and has sufficient strength as an outer frame.

ドア2は、前面カバー1cの略中央に設けた衣類を出し入れするための投入口(図示せず)を塞ぐためのもので、前面カバー1cに設けたヒンジで開閉可能に支持されている。ドア2は、ドア開放取手2aを引くことでロック機構(図示せず)が外れて開き、ドア2を前面カバー1cに押し付けることでロックされて閉じる。前面カバー1cは、外槽17(図2参照)の開口部と略同心に、衣類を出し入れするための円形の開口部を有している。 The door 2 is for closing an opening (not shown) for putting in and taking out clothes, which is located approximately in the center of the front cover 1c, and is supported by a hinge on the front cover 1c so that it can be opened and closed. The door 2 opens when the door opening handle 2a is pulled to release a locking mechanism (not shown), and closes when the door 2 is pressed against the front cover 1c. The front cover 1c has a circular opening for putting in and taking out clothes, approximately concentric with the opening of the outer tub 17 (see Figure 2).

筐体1の上部に設けられた操作・表示パネル3は、電源スイッチ4、操作スイッチ等を備え、各種操作を受け付け、各種情報を表示する。操作・表示パネル3はベース1aの内部に備えられている制御部7(図3参照)に電気的に接続している。ベース1aには、排水を行うための排水ホース34が取り付けられている。 The operation/display panel 3 provided on the top of the housing 1 includes a power switch 4, operation switches, etc., and receives various operations and displays various information. The operation/display panel 3 is electrically connected to a control unit 7 (see FIG. 3) provided inside the base 1a. A drain hose 34 for draining water is attached to the base 1a.

図2に示す側板1bの上方には、筐体1の補強部材となる四角枠形状のステー10が取り付けられており、ステー10は、前方ステー11、左右の側面ステー12、後方ステー13の四部品で構成されている。ステー10を四部品で構成することで、前方ステー11と、側面ステー12と、後方ステー13の各ステー寸法に合わせて、鋼材からステーを切り出すことができるため、残材の発生を抑制できる。また、ステー10は、前方ステー11と側面ステー12、後方ステー13と側面ステー12をそれぞれ締結(例えばねじを使用)して、四角枠形状を構成する。 A square frame-shaped stay 10 that serves as a reinforcing member for the housing 1 is attached above the side plate 1b shown in FIG. 2, and the stay 10 is made up of four parts: a front stay 11, left and right side stays 12, and a rear stay 13. By making the stay 10 out of four parts, the stays can be cut out of steel material according to the dimensions of the front stay 11, side stay 12, and rear stay 13, reducing the generation of waste material. In addition, the stay 10 is made up of a square frame shape by fastening (using screws, for example) the front stay 11 to the side stay 12, and the rear stay 13 to the side stay 12.

側板1bと、ステー10との四隅には、側板1bとステー10を締結するための締結孔14が設けられている。締結孔14を例えばねじで締結することで、側板1bとステー10は剛接合され、筐体1の剛性を増加することができる。
外槽17の上部には二組の外槽側懸架部取付部15が設けられ、左右の側面ステー12には二組の筐体側懸架部取付部16が設けられている。外槽側懸架部取付部15と筐体側懸架部取付部16とを懸架部8(コイルばねで構成)で接続することで、外槽17が吊り下げられ支持される。
Fastening holes 14 for fastening the side plate 1b to the stay 10 are provided at the four corners of the side plate 1b and the stay 10. By fastening the fastening holes 14 with, for example, screws, the side plate 1b and the stay 10 are rigidly joined, and the rigidity of the housing 1 can be increased.
Two sets of outer tub side suspension attachment parts 15 are provided on the upper part of the outer tub 17, and two sets of case side suspension attachment parts 16 are provided on the left and right side stays 12. The outer tub 17 is suspended and supported by connecting the outer tub side suspension attachment parts 15 and the case side suspension attachment parts 16 with suspension parts 8 (composed of coil springs).

図3に示すドラム式洗濯乾燥機100の筐体1の内部には、水を溜める外槽17が設けられる。外槽17の下部は、筐体1に固定された左右一対のサスペンション26(コイルばねとダンパで構成)で防振支持されている。
外槽17は、衣類を収納するためのドラム21を内包する。外槽17の後方には、ドラム21を回転させるためのモータ22が設けられている。モータ22は、回転軸となるシャフト22aが外槽17を貫通し、ドラム21と結合している。制御装置7は、モータ22の回転数(r/min)を制御する。また、制御装置7は、ドラム式洗濯乾燥機100の制御を行う。制御装置7は、ドラム式洗濯乾燥機100に設けられた、振動センサ28のセンサ値の検出及び取得を行う。脱水工程時にドラム21の投入した衣類のアンバランスによって、外槽17の振動振幅が振動センサ28に予め設定した値を超えると、脱水工程を一時停止して、ドラム21を正転、逆転させて、衣類のアンバランスを修正して、脱水工程のやり直しを行う(リトライ)。
An outer tub 17 for storing water is provided inside the housing 1 of the drum type washer-dryer 100 shown in Fig. 3. The lower part of the outer tub 17 is supported in a vibration-proof manner by a pair of left and right suspensions 26 (each composed of a coil spring and a damper) fixed to the housing 1.
The outer tub 17 contains a drum 21 for storing clothes. A motor 22 for rotating the drum 21 is provided behind the outer tub 17. The motor 22 has a shaft 22a which serves as a rotation axis that penetrates the outer tub 17 and is connected to the drum 21. The control device 7 controls the rotation speed (r/min) of the motor 22. The control device 7 also controls the drum type washer-dryer 100. The control device 7 detects and acquires the sensor value of a vibration sensor 28 provided in the drum type washer-dryer 100. If the vibration amplitude of the outer tub 17 exceeds a value preset in the vibration sensor 28 due to an imbalance of the clothes placed in the drum 21 during the spin-drying process, the spin-drying process is temporarily stopped, the drum 21 is rotated forward and backward, the imbalance of the clothes is corrected, and the spin-drying process is repeated (retry).

モータ22の駆動により、ドラム21は、正転(ドラム式洗濯乾燥機100を正面から見て時計回り)、逆転(ドラム式洗濯乾燥機100を正面から見て反時計回り)の両方向に回転駆動が可能である。図3に示すドラム21の回転軸Azは、ドラム式洗濯乾燥機100の前方から後方に向けて水平または、奥側が下になるように傾斜している(図3は奥側が下になるように傾斜している)。 Drum 21 can be driven to rotate in both forward (clockwise when viewed from the front of drum type washer-dryer 100) and reverse (counterclockwise when viewed from the front of drum type washer-dryer 100) directions by driving motor 22. The rotation axis Az of drum 21 shown in FIG. 3 is horizontal from the front to the rear of drum type washer-dryer 100 or inclined so that the rear side faces downward (FIG. 3 is inclined so that the rear side faces downward).

ドラム21の内周面には、ドラム21内の洗濯水を外槽17に排水するための複数個の脱水孔21bや、ドラム21の周方向に間隔をおいて、ドラム21内に投入された衣類を持ち上げるための複数個(図3では1個のみを図示)のバッフル23が設けられている。バッフル23は、ドラム21の前後方向を長手方向として延在している。
ドラム21の前端には、円筒状の流体バランサ21cが設けられている。外槽17は、前方を開口として、後方を閉じた有底の略円筒を形成している。この外槽17の開口部と筐体1の投入口は、前後方向に伸縮しやすいベローズ19により接続されている。ベローズ19は、環状の弾性部材であり、ドア2を閉めることでドラム21を水封する。また、筐体1の投入口、外槽17の開口部、ドラム21の開口部は連通しており、ドア2を開くことでドラム21内への衣類の出し入れが可能となる。なお、外槽17は、開口部を含む側と、モータ22の取り付けられる側とに分割することができる。
The inner peripheral surface of the drum 21 is provided with a plurality of dewatering holes 21b for draining the wash water in the drum 21 into the outer tub 17, and a plurality of baffles 23 (only one is shown in Fig. 3) spaced apart around the circumference of the drum 21 for lifting up the clothes placed in the drum 21. The baffle 23 extends in the front-to-rear direction of the drum 21 as its longitudinal direction.
A cylindrical fluid balancer 21c is provided at the front end of the drum 21. The outer tub 17 is an approximately cylindrical shape with an opening at the front and a closed rear, and has a bottom. The opening of the outer tub 17 and the input port of the housing 1 are connected by a bellows 19 that easily expands and contracts in the front-rear direction. The bellows 19 is an annular elastic member, and the drum 21 is sealed with water by closing the door 2. The input port of the housing 1, the opening of the outer tub 17, and the opening of the drum 21 are connected to each other, and clothes can be put in and taken out of the drum 21 by opening the door 2. The outer tub 17 can be divided into a side including the opening and a side to which the motor 22 is attached.

給水ホース接続口30の下部には、給水弁31が設けられており、給水弁31には、外槽17に給水するための給水ホース32の一端が接続されている。給水弁31の弁を開くことで、給水ホース接続口30から給水ホース32に水が流れて、洗剤容器33を介して外槽17内に給水される。
外槽17の下部に設けられた排水ホース34の排水経路には、排水弁34aが設けられている。排水弁34aを閉じると外槽17内に給水した水が外槽17内に溜まり、排水弁34aを開くと、外槽17内の洗濯水が排水ホース34からドラム式洗濯乾燥機100の機外に排水される。
A water supply valve 31 is provided below the water supply hose connection port 30, and one end of a water supply hose 32 for supplying water to the outer tub 17 is connected to the water supply valve 31. When the water supply valve 31 is opened, water flows from the water supply hose connection port 30 to the water supply hose 32, and is supplied into the outer tub 17 via the detergent container 33.
A drain valve 34a is provided in the drain path of a drain hose 34 provided at the bottom of the outer tub 17. When the drain valve 34a is closed, the water supplied to the outer tub 17 accumulates in the outer tub 17, and when the drain valve 34a is opened, the washing water in the outer tub 17 is drained from the drain hose 34 to the outside of the drum type washer-dryer 100.

次に、このようなドラム式洗濯乾燥機100の洗濯等の動作について説明する。
このように構成されたドラム式洗濯乾燥機100では、まず利用者が電源スイッチ4を押下することで、ドラム式洗濯乾燥機100が起動する。そして、利用者は、ドア開放取手2aを引き、ドア2を開いてドラム21内に衣類を投入する。そして、利用者は、ドア2を閉じた後、操作スイッチ5を操作することで、運転を開始する。運転が開始されると、ドラム21が回転して、注水前の衣類容量を算出する。衣類容量は、モータ22の回転数と電流値に基づいて算出される。このとき、衣類容量が多い程、モータ22に負荷が加わり、電流値が大きくなるので、もって電流値で衣類容量を判定する。そして、衣類容量に基づいて、投入する洗剤量が操作・表示パネル3に表示される。このとき、算出した衣類容量が多い程、投入する洗剤量も多くなる。利用者は、操作・表示パネル3の表示を確認して、洗剤容器33内に所定量の洗剤量を投入して、洗い工程を開始する。
Next, the washing operation of the drum type washer/dryer 100 will be described.
In the drum type washer-dryer 100 configured as above, the user first presses the power switch 4 to start the drum type washer-dryer 100. Then, the user pulls the door opening handle 2a to open the door 2 and loads clothes into the drum 21. Then, the user closes the door 2 and operates the operation switch 5 to start operation. When operation starts, the drum 21 rotates and the clothes volume before water is poured is calculated. The clothes volume is calculated based on the rotation speed and current value of the motor 22. At this time, the larger the clothes volume, the more the load on the motor 22 and the larger the current value, so that the clothes volume is determined by the current value. Then, the amount of detergent to be poured is displayed on the operation and display panel 3 based on the clothes volume. At this time, the larger the calculated clothes volume, the more the amount of detergent to be poured. The user checks the display on the operation and display panel 3, pours a predetermined amount of detergent into the detergent container 33, and starts the washing process.

洗い工程では、給水弁31を開いて、給水ホース接続口30から供給した水を給水ホース32および洗剤容器33を介して、洗剤と共に外槽17内に供給する。このとき、算出した衣類容量が多い程、洗い工程での給水量が多くなる。また、このとき、循環ポンプ27内で未溶解の洗剤と水とが撹拌される。これにより、効率よく洗剤が溶かされ、高濃度の洗剤液が生成される。この動作を所定時間実行した後、ドラム21を正転、停止、逆転、停止を繰り返す洗い動作を所定時間行う。このとき、衣類がバッフル23によって持ち上げられて落下する動作が繰り返されることで衣類の洗浄力が高められる。 During the washing process, the water supply valve 31 is opened, and water supplied from the water supply hose connection port 30 is supplied into the outer tub 17 together with detergent via the water supply hose 32 and detergent container 33. At this time, the greater the calculated laundry volume, the greater the amount of water supplied during the washing process. At this time, undissolved detergent and water are agitated in the circulation pump 27. This efficiently dissolves the detergent and produces a highly concentrated detergent solution. After this operation is performed for a predetermined time, a washing operation is performed for a predetermined time in which the drum 21 is rotated forward, stopped, reversed, and stopped repeatedly. At this time, the laundry is lifted by the baffle 23 and dropped repeatedly, thereby enhancing the cleaning power of the clothes.

洗い工程を行った後、脱水工程を行う。脱水工程では、初めにドラム21に衣類が張り付かない低速回転数でドラム21を回転させる。低速回転数では、洗い工程で水を含んだ衣類がドラム21の回転時にバッフル23によって持ち上げられ、衣類が落下する際にドラム21の内周面に広げられる。衣類が広がり始めたら、ドラム21の回転数を徐々に上昇させて、ドラム21に衣類を張り付ける。ドラム21に衣類が張り付くと、ドラム21の回転数を上昇させて、外槽17の振動が増加する外槽17の共振区間と、筐体1の振動が増加する筐体1の共振区間を通過させながら、目標回転数まで到達させて、衣類に含まれる水を遠心脱水していく。 After the washing process, the spin-drying process is performed. In the spin-drying process, the drum 21 is first rotated at a low rotation speed so that the clothes do not stick to the drum 21. At the low rotation speed, the clothes that have absorbed water during the washing process are lifted by the baffle 23 as the drum 21 rotates, and are spread out on the inner surface of the drum 21 as the clothes fall. Once the clothes start to spread, the rotation speed of the drum 21 is gradually increased so that the clothes stick to the drum 21. Once the clothes stick to the drum 21, the rotation speed of the drum 21 is increased to reach the target rotation speed while passing through the resonance zone of the outer tub 17 where the vibration of the outer tub 17 increases and the resonance zone of the housing 1 where the vibration of the housing 1 increases, and the water contained in the clothes is centrifugally dehydrated.

脱水工程を行った後、すすぎ工程を行う。このすすぎ工程では、給水弁31を開いて、給水ホース接続口30から供給した水を給水ホース32および洗剤容器33を介して、外槽17内に供給する。また、洗い工程と同様に、算出した衣類容量が多い程、給水量が多くなる。このすすぎ工程では、洗い工程と同様に、ドラム21の正転、停止、逆転、停止の動作を繰り返す。このとき、バッフル23によって持ち上げられた衣類が落下する攪拌動作を所定時間行う。 After the spin cycle, the rinse cycle is performed. In this rinse cycle, the water supply valve 31 is opened and water supplied from the water supply hose connection port 30 is supplied into the outer tub 17 via the water supply hose 32 and detergent container 33. As with the wash cycle, the greater the calculated laundry volume, the greater the amount of water supplied. In this rinse cycle, as with the wash cycle, the drum 21 is rotated forward, stopped, reversed, and stopped repeatedly. At this time, an agitation operation is performed for a predetermined period of time, in which the clothes lifted by the baffle 23 fall.

その後、前記した脱水工程及びすすぎ工程を所定回数繰り返し、最終脱水工程に移行する。この最終脱水工程におけるドラム21の目標回転数区間における運転時間は、前記脱水工程より長く設定する。
最終脱水工程を行った後、乾燥工程を行う。乾燥工程のドラム21の回転数は、洗い工程時よりもさらに低速で回転させながら、送風ユニット(図示せず)からドラム21内に温風を衣類に吹き付けて、衣類のシワを低減しながら乾燥させる。
Thereafter, the above-mentioned dehydration step and rinsing step are repeated a predetermined number of times, and then the process proceeds to a final dehydration step, in which the operation time in the target rotation speed range of the drum 21 is set longer than that in the previous dehydration step.
After the final spin-drying step, the drying step is performed. In the drying step, the drum 21 rotates at a slower speed than in the washing step, and hot air is blown onto the clothes from an air blowing unit (not shown) into the drum 21 to dry the clothes while reducing wrinkles.

次に、ステー10の作用効果について説明する。
図4は、ステー10の比較例となる“]”の字型のステー50を示す説明図である。“]”の字型のステー50は前方ステー11及び2本の側面ステー12で構成されている。ステー50は、図2のステー10と同様に、懸架部8を介して、外槽17を支持する。
ここで、ステー10を用いる場合とステー50を用いる場合とで筐体1の振動を比較するため、外槽17の斜下方向(外槽17の振動方向)に荷重を加えて、静的解析による筐体1の振動変位を比較した。
Next, the function and effect of the stay 10 will be described.
4 is an explanatory diagram showing a “]” shaped stay 50, which is a comparative example of the stay 10. The “]” shaped stay 50 is composed of a front stay 11 and two side stays 12. The stay 50 supports the outer tub 17 via a suspension portion 8, similar to the stay 10 in FIG.
Here, in order to compare the vibration of the housing 1 when the stay 10 was used and when the stay 50 was used, a load was applied in the diagonally downward direction of the outer tank 17 (the vibration direction of the outer tank 17), and the vibration displacement of the housing 1 was compared by static analysis.

図5は、比較結果を示すグラフである。図5の横軸は側板1bと、ステー10又はステー50との板厚の比(ステーの板厚/側板の板厚)を示す「厚さ比」である。縦軸は、ステー10を用いたときの筐体1の変位と、ステー50を用いたときの筐体1の変位との比である「筐体振動比」を示す。筐体振動比が1.0より小さい場合、本実施例のステー10の筐体1の変位が比較例のステー50よりも小さくなる。また、厚さ比が1.0より小さい場合、側板1bの板厚がステーの板厚より大きくなり、厚さ比が1.0より大きい場合、側板1bの板厚がステーの板厚よりも薄くなる。 Figure 5 is a graph showing the comparison results. The horizontal axis of Figure 5 is the "thickness ratio" which indicates the ratio of the plate thickness of the side plate 1b to the plate thickness of the stay 10 or the stay 50 (plate thickness of the stay/plate thickness of the side plate). The vertical axis indicates the "housing vibration ratio" which is the ratio of the displacement of the housing 1 when the stay 10 is used to the displacement of the housing 1 when the stay 50 is used. When the housing vibration ratio is smaller than 1.0, the displacement of the housing 1 of the stay 10 of this embodiment is smaller than that of the stay 50 of the comparative example. Also, when the thickness ratio is smaller than 1.0, the plate thickness of the side plate 1b is larger than that of the stay, and when the thickness ratio is larger than 1.0, the plate thickness of the side plate 1b is thinner than that of the stay.

図5では厚さ比に関わらず、筐体振動比が1.0より小さくなっているので、本実施例1のステー10は比較例のステー50よりも筐体1の振動を低減することができる。また、ステー10とステー50とが同一板厚で、前方ステー11と側面ステー12及び後方ステー13がそれぞれ同一寸法の場合、ステー10の断面二次モーメントはコの字ステーの約1.4倍となるため、本実施例のステー10によって筐体1の剛性を増加することができ、筐体1の振動を抑制できる。 In FIG. 5, the housing vibration ratio is smaller than 1.0 regardless of the thickness ratio, so the stay 10 of this embodiment 1 can reduce the vibration of the housing 1 more than the stay 50 of the comparative example. Also, when the stays 10 and 50 have the same plate thickness and the front stay 11, side stay 12, and rear stay 13 have the same dimensions, the second moment of area of the stay 10 is about 1.4 times that of the U-shaped stay, so the stay 10 of this embodiment can increase the rigidity of the housing 1 and suppress the vibration of the housing 1.

ここで、一般的に補強部材となるステーの板厚は、補強される部材の板厚よりも厚くして(厚さ比が1.0より大きい)、補強される部材の薄肉化によるコスト低減を図っている。また、一般的な洗濯機の厚さ比は2.0となっている。したがって、前述の様に、厚さ比に関わらず筐体振動比が1.0より小さくなっていることから、ステー10を筐体1に設けることで、一般的な洗濯機の厚さ比よりも厚さ比を大きく(側板1bの板厚を薄く)して、製造コスト低減を図りながら筐体1の振動を抑制することができる。なお、筐体1を構成する面積割合は、側板1bが後方ステー13よりも大きい。そのため、側板1bの薄肉化による製造コスト低減量は、後方ステー13の厚肉化による製造コスト増加量よりも大きいため、側板1bを薄肉化することで製造コスト増加を抑制できる。 Here, the thickness of the stay, which is generally a reinforcing member, is made thicker than the thickness of the member to be reinforced (thickness ratio is greater than 1.0), and costs are reduced by thinning the member to be reinforced. The thickness ratio of a typical washing machine is 2.0. As described above, the housing vibration ratio is smaller than 1.0 regardless of the thickness ratio, so by providing the stay 10 to the housing 1, the thickness ratio can be made larger than that of a typical washing machine (thinning the plate thickness of the side plate 1b), and the vibration of the housing 1 can be suppressed while reducing manufacturing costs. The surface area ratio of the side plate 1b constituting the housing 1 is larger than that of the rear stay 13. Therefore, the reduction in manufacturing costs due to the thinning of the side plate 1b is greater than the increase in manufacturing costs due to the thickening of the rear stay 13, so the increase in manufacturing costs can be suppressed by thinning the side plate 1b.

このように筐体1の振動増加を抑制することで、使用者の音による不快感の増加を抑制することができる。また、ビルトインタイプのドラム式洗濯乾燥機100においても、キッチンカウンター側壁とドラム式洗濯乾燥機100の衝突による異音の発生や、ドラム式洗濯乾燥機100又はキッチンカウンターの破損の発生を抑制できる。
また、ステー10の断面二次モーメントが増加することで、側板1bに力が加わった時に変形しにくくなるため、ドラム式洗濯乾燥機100を輸送する際の梱包材の削減や薄肉化を図ることが可能となり、ドラム式洗濯乾燥機100の製造コストを低減することができる。
In this way, it is possible to suppress an increase in discomfort caused by noise to the user by suppressing an increase in vibration of the housing 1. Also, in the built-in drum type washer-dryer 100, it is possible to suppress the generation of abnormal noise caused by the collision of the drum type washer-dryer 100 with the side wall of a kitchen counter, and the occurrence of damage to the drum type washer-dryer 100 or the kitchen counter.
In addition, by increasing the second moment of area of the stay 10, the side panel 1b is less likely to deform when force is applied thereto, which makes it possible to reduce and thin the packaging materials used when transporting the drum type washer-dryer 100, thereby reducing the manufacturing cost of the drum type washer-dryer 100.

実施例1において、面積割合は、側板1bの方が、懸架部8、外槽側懸架部取付部15及び筐体側懸架部取付部16よりも大きい。そのため、側板1bの薄肉化による製造コスト低減量は、懸架部8、外槽側懸架部取付部15及び筐体側懸架部取付部16の追加によるコスト増加量より大きいため、側板1bを薄肉化することで製造コスト増加を防止することができる。
以上、ステー10を筐体1に設けることで、比較例のステー50よりも筐体1の振動を低減することができ、側板1bの薄肉化による低製造コスト化と筐体1の振動抑制を図ることができる。
In the first embodiment, the side plate 1b has a larger area ratio than the suspension portion 8, the outer-tub-side suspension portion attachment portion 15, and the housing-side suspension portion attachment portion 16. Therefore, the reduction in manufacturing cost by thinning the side plate 1b is greater than the increase in cost by adding the suspension portion 8, the outer-tub-side suspension portion attachment portion 15, and the housing-side suspension portion attachment portion 16, and therefore, by thinning the side plate 1b, it is possible to prevent an increase in manufacturing cost.
As described above, by providing the stay 10 to the housing 1, the vibration of the housing 1 can be reduced more than the stay 50 of the comparative example, and the manufacturing cost can be reduced by thinning the side plate 1b, and the vibration of the housing 1 can be suppressed.

図6は、ドラム式洗濯乾燥機100の上面カバー1eを外して上面から見た模式図である。以下の説明では、実施例2が実施例1と異なる点を中心に説明する。実施例1と共通の部材には共通の符号を用いる。
実施例2では、実施例1の外槽側懸架部取付部15に代えて、外槽17の前方の左右に前方外槽側懸架部取付部115、外槽17の後方の左右に後方側外槽側懸架部取付部116をそれぞれ設けている。また筐体側懸架部取付部16に代えて、前方ステー11の左右に前方筐体側懸架部取付部117、後方ステー13の左右に後方筐体側懸架部取付部118をそれぞれ設けている。前方筐体側懸架部取付部117は、前方ステー11に設けた取り付け孔119と、側面ステー12の前方に設けた取り付け孔120でねじ等により締結して、剛接合している。後方筐体側懸架部取付部118は、後方ステー13に設けた取り付け孔121と側面ステー12の後方に設けた取り付け孔122でねじ等により締結して、剛接合している。
6 is a schematic diagram of the drum type washer-dryer 100 as viewed from above with the top cover 1e removed. In the following description, differences between the second embodiment and the first embodiment will be mainly described. The same reference numerals are used for the same members as those in the first embodiment.
In the second embodiment, instead of the outer tank side suspension mounting portion 15 of the first embodiment, a front outer tank side suspension mounting portion 115 is provided on the left and right sides of the front of the outer tank 17, and a rear outer tank side suspension mounting portion 116 is provided on the left and right sides of the rear of the outer tank 17. Also, instead of the housing side suspension mounting portion 16, a front housing side suspension mounting portion 117 is provided on the left and right sides of the front stay 11, and a rear housing side suspension mounting portion 118 is provided on the left and right sides of the rear stay 13. The front housing side suspension mounting portion 117 is rigidly joined by fastening with a mounting hole 119 provided in the front stay 11 and a mounting hole 120 provided in front of the side stay 12 by a screw or the like. The rear housing side suspension mounting portion 118 is rigidly joined by fastening with a mounting hole 121 provided in the rear stay 13 and a mounting hole 122 provided at the rear of the side stay 12 by a screw or the like.

前方外槽側懸架部取付部115と後方外槽側懸架部取付部116とは、懸架部8を介して、前方筐体側懸架部取付部117と後方筐体側懸架部取付部118とにそれぞれ接続され、外槽17の四隅がステー10に支持される。
外槽17を四隅で懸架することで、懸架部8が外槽17の前後左右の移動を抑制して、外槽17の振動を低減する。したがって、本実施例2の外槽17の懸架部8は、実施例1に記載した外槽17の懸架部8よりも外槽17の振動を低減することができる。外槽17の振動を低減することで、外槽17に大きなアンバランスが発生した際、外槽17と筐体1の衝突を抑制できる。これにより、外槽17の外径及び奥行を長くして、洗濯容量の増加を図る場合、外槽17と筐体1の衝突を抑制できるため、ドラム式洗濯乾燥機100の本体寸法を大型化することなく、洗濯容量を増加することができる。
The front outer tank side suspension mounting portion 115 and the rear outer tank side suspension mounting portion 116 are connected to the front housing side suspension mounting portion 117 and the rear housing side suspension mounting portion 118, respectively, via the suspension portion 8, and the four corners of the outer tank 17 are supported by the stays 10.
By suspending the outer tub 17 at its four corners, the suspension parts 8 suppress the movement of the outer tub 17 in any direction, thereby reducing the vibration of the outer tub 17. Therefore, the suspension parts 8 of the outer tub 17 in the second embodiment can reduce the vibration of the outer tub 17 more than the suspension parts 8 of the outer tub 17 described in the first embodiment. By reducing the vibration of the outer tub 17, it is possible to suppress collision between the outer tub 17 and the housing 1 when a large imbalance occurs in the outer tub 17. As a result, when the outer diameter and depth of the outer tub 17 are increased to increase the washing capacity, it is possible to suppress collision between the outer tub 17 and the housing 1, so that the washing capacity can be increased without increasing the dimensions of the drum type washer-dryer 100.

また、前方筐体側懸架部取付部117と後方筐体側懸架部取付部118の材料を、ステー10と同部材(例えば鋼材)とすることで、前方筐体側懸架部取付部117と後方筐体側懸架部取付部118が筐体1の補強部材として作用し、筐体1の振動を低減することができる。
以上のとおり、ステー10を筐体1に設け、外槽17の四隅を懸架部8で支持することで、外槽17の振動を低減でき、実施例1よりも洗濯容量を増加させることができる。
Furthermore, by using the same material (e.g., steel) for the front housing side suspension portion mounting portion 117 and the rear housing side suspension portion mounting portion 118 as the stay 10, the front housing side suspension portion mounting portion 117 and the rear housing side suspension portion mounting portion 118 act as reinforcing members for the housing 1, thereby reducing vibration of the housing 1.
As described above, by providing the stays 10 to the housing 1 and supporting the four corners of the outer tub 17 with the suspension parts 8, the vibration of the outer tub 17 can be reduced and the washing capacity can be increased compared to Example 1.

なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施例は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能であり、また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、他の構成の追加・削除・置換をすることも可能である。 The present invention is not limited to the above-described embodiments, but includes various modified examples. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and are not necessarily limited to those having all of the configurations described. It is also possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to add, delete, or replace part of the configuration of each embodiment with other configurations.

1 筐体
1b 側板
8 懸架部
10 ステー
11 前方ステー
12 側面ステー
13 後方ステー
17 外槽
100 ドラム式洗濯乾燥機(ドラム式洗濯機)
REFERENCE SIGNS LIST 1 Housing 1b Side plate 8 Suspension portion 10 Stay 11 Front stay 12 Side stay 13 Rear stay 17 Outer tub 100 Drum type washer-dryer (drum type washing machine)

Claims (4)

左右の板が側板となる筐体と、
前記筐体内に支持され内部に液体を貯留可能な外槽と、
前記筐体の上方に設けられた四角枠形状のステーと、
一端を前記外槽に接続し他端を前記側板の上方で前記ステーと接続して、前記外槽を懸架する懸架部とを備え
前記四角枠形状のステーは、前記筐体の前方に位置する前方ステーと、前記左右両方の側板の上方にそれぞれ位置する側面ステーと、前記筐体の後方に位置する後方ステーとを備え、前記側面ステーが前記前方ステー及び前記後方ステーと締結されていることにより、前記四角枠形状のステーは四角枠形状をなしていて、
前記四角枠形状のステーと前記側板とは当該四角枠形状のステーの四隅で締結されていて、
前記前方ステー、前記側面ステー及び前記後方ステーは、互いに同じ幅サイズ、同じ厚さであることを特徴とするドラム式洗濯機。
A case with left and right panels as side panels;
an outer tank supported within the housing and capable of storing a liquid therein;
A rectangular frame-shaped stay provided on the upper part of the housing;
a suspension part having one end connected to the outer tub and the other end connected to the stay above the side plate, for suspending the outer tub ;
the rectangular frame-shaped stay includes a front stay located at the front of the housing, side stays located above the left and right side plates, respectively, and a rear stay located at the rear of the housing, and the side stays are fastened to the front stay and the rear stay, so that the rectangular frame-shaped stay has a rectangular frame shape,
The rectangular frame-shaped stay and the side plate are fastened to each other at four corners of the rectangular frame-shaped stay,
The drum-type washing machine is characterized in that the front stay, the side stay and the rear stay have the same width and thickness.
“前記ステーの厚さ/前記側板の厚さ”である厚さ比が1.0よりも大きいことを特徴とする請求項1に記載のドラム式洗濯機。 The drum-type washing machine according to claim 1, characterized in that the thickness ratio, "thickness of the stay/thickness of the side panel", is greater than 1.0. 前記懸架部は、前記外槽の左右2か所を懸架していることを特徴とする請求項1に記載のドラム式洗濯機。 2. The drum-type washing machine according to claim 1 , wherein the suspension portion suspends the outer tub at two positions, ie, at the left and right sides. 前記懸架部は、前記外槽の前後左右4か所を懸架していることを特徴とする請求項1に記載のドラム式洗濯機。 2. The drum-type washing machine according to claim 1 , wherein the suspension portion suspends the outer tub at four positions, i.e., at the front, rear, left and right.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006289127A (en) 2002-12-27 2006-10-26 Lg Electronics Inc Drum washing machine
JP2008264513A (en) 2007-04-24 2008-11-06 Samsung Electronics Co Ltd Drum washing machine, and laundry method using the same
JP2016120196A (en) 2014-12-25 2016-07-07 三星電子株式会社Samsung Electronics Co.,Ltd. Washing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10301756B2 (en) * 2013-07-09 2019-05-28 Haier Group Corporation Dual-drum washing machine
CN111172703A (en) * 2018-11-09 2020-05-19 青岛海尔滚筒洗衣机有限公司 Clothes treatment device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006289127A (en) 2002-12-27 2006-10-26 Lg Electronics Inc Drum washing machine
JP2008264513A (en) 2007-04-24 2008-11-06 Samsung Electronics Co Ltd Drum washing machine, and laundry method using the same
JP2016120196A (en) 2014-12-25 2016-07-07 三星電子株式会社Samsung Electronics Co.,Ltd. Washing machine

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