JP2892801B2 - Drum type washing machine - Google Patents
Drum type washing machineInfo
- Publication number
- JP2892801B2 JP2892801B2 JP25017390A JP25017390A JP2892801B2 JP 2892801 B2 JP2892801 B2 JP 2892801B2 JP 25017390 A JP25017390 A JP 25017390A JP 25017390 A JP25017390 A JP 25017390A JP 2892801 B2 JP2892801 B2 JP 2892801B2
- Authority
- JP
- Japan
- Prior art keywords
- drum
- water tank
- washing machine
- water
- type washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ドラム式洗濯機における、駆動部の取付け
構造と緩衝支持構造に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a drive unit and a buffer support structure in a drum type washing machine.
洗濯槽及び脱水槽として機能し、円筒部に多数の***
が穿設されたドラムを横形に軸受けし、洗い，すすぎ，
脱水を一貫して行うドラム式洗濯機は、特開平１−1667
99号公報に記載のように、洗い及びすすぎ工程でドラム
を低速回転（40〜60rpm）、または短周期で正逆反転さ
せ、脱水工程ではドラムを高速回転（600〜1100rpm）さ
せて、洗いから脱水まで行う。そして、上記ドラム式洗
濯機は、一般に、ドラムを軸受けして収容する水槽の下
部に溶接、または締結された取付け部材に、ドラムを回
転させる駆動部が固設され、前記水槽が、緩衝装置（吊
り棒と圧縮コイルばねなどで構成した装置、または、単
に引張コイルばね）で外枠上端部の４隅から吊り下げれ
た構造、または前記水槽が、緩衝装置（オイルダンパ
ー、または、単に圧縮コイルばね）により外枠の下部で
支持された構造となっている。It functions as a washing tub and a dehydration tub, and supports a drum with a number of small holes drilled in the cylindrical part in a horizontal shape, washing, rinsing,
A drum type washing machine that performs dehydration consistently is disclosed in Japanese Patent Laid-Open No. 1-1667.
As described in Japanese Patent Publication No. 99, the drum is rotated at a low speed (40 to 60 rpm) in the washing and rinsing steps, or reversely rotated in a short cycle, and the drum is rotated at a high speed (600 to 1100 rpm) in the dehydrating step to start washing. Perform until dehydration. In general, the drum type washing machine has a drive unit for rotating the drum fixed to a mounting member welded or fastened to a lower portion of a water tank that receives and accommodates the drum, and the water tank is provided with a shock absorber ( A structure composed of a hanging rod and a compression coil spring, or a structure suspended from the four corners of the upper end of the outer frame by a tension coil spring, or the water tank is provided with a shock absorber (oil damper, or simply a compression coil spring). ), The structure is supported at the lower part of the outer frame.
また、前記した緩衝装置で水槽を吊り下げた構造のも
のにおいて、脱水起動時に水槽（外槽）が外枠（本体）
に衝突するのを防ぐ緩衝支持構造として、脱水洗濯機の
例で、特開昭62−261391号公報に記載のように、水槽の
上方部に、複数の帯体の間にばねを配した部材を巻着
し、帯体の他端を外枠に取付けた防振構造などがある。Further, in the structure in which the water tank is suspended by the above-described shock absorber, the water tank (outer tank) is set to the outer frame (main body) when dehydration is started.
As a buffer support structure for preventing collision with a member, a member in which a spring is arranged between a plurality of belts in an upper portion of a water tank as described in Japanese Patent Application Laid-Open No. 62-261391, as an example of a dehydration washing machine. And the other end of the band is attached to the outer frame.
ドラム式洗濯機における構造の従来例は、以上のごと
きである。The conventional example of the structure in the drum type washing machine is as described above.
一般に、ドラム式洗濯機において、モータや減速機な
どの駆動部は、洗いやすすぎ時に、洗濯物が多量に水を
含んだもとで、ドラムを低速回転、または短周期で正逆
反転させることにより生じる反力と、脱水時に、洗濯物
のアンバランスによる振動で生じる慣性力を、受ける。Generally, in a drum-type washing machine, a drive unit such as a motor or a speed reducer rotates the drum at a low speed or in a short cycle when the washing is too rinsed and the laundry contains a large amount of water. And the inertia generated by the vibration due to the unbalance of the laundry during dehydration.
そのために、上記従来技術のドラム式洗濯機は、モー
タや減速機が固設される水槽（水を収容するために、ス
テンレス鋼板、または防錆処理を施した鋼板で形成し
た）の円筒部と、前記水槽の円筒部に溶接、または締結
された取付け部材を、前記の反力や慣性力に耐える厚み
の鋼板で形成している。したがって、軽量化とコスト低
減を図る目的で、薄い鋼板を用いて、水槽を形成しよう
とすると、補強部材を追加しなければならず、構成が複
雑化するとともに、重くなってコスト高になるなどの問
題があった。Therefore, the above-mentioned conventional drum type washing machine is provided with a cylindrical portion of a water tank (formed of a stainless steel plate or a steel plate subjected to rust-proof treatment for storing water) in which a motor and a speed reducer are fixed. The mounting member welded or fastened to the cylindrical portion of the water tank is formed of a steel plate having a thickness that can withstand the reaction force and the inertial force. Therefore, when trying to form a water tank using thin steel plates for the purpose of weight reduction and cost reduction, reinforcing members must be added, complicating the configuration and increasing the weight and cost. There was a problem.
また、特開平166799号公報に記載のように、水槽を緩
衝装置で外枠上端部の４隅から吊り下げた緩衝支持構造
のドラム式洗濯機において、洗いやすすぎ時に、ドラム
を短周期で正逆反転させると、自由振動が生じ、水槽が
大きく振れ、外枠に衝突する問題がある。この問題を解
決する手段として、特開昭62−261391号公報に記載のよ
うに、複数の帯体とばねで構成した部材を、水槽に巻着
させた緩衝支持構造があるが、前記部材の配置により構
造が複雑になるなどの問題が生じる。Also, as described in Japanese Patent Application Laid-Open No. 166799, in a drum type washing machine having a buffer support structure in which a water tank is suspended from four corners at the upper end of an outer frame by a buffering device, the drum is directly rotated in a short cycle when washing is easy. If it is reversed, free vibration occurs, and the water tank shakes greatly, and there is a problem of colliding with the outer frame. As means for solving this problem, as described in JP-A-62-261391, there is a buffer support structure in which a member constituted by a plurality of bands and springs is wound around a water tank. There are problems such as a complicated structure due to the arrangement.
本発明は、前記した従来技術の問題をなくし、ドラム
式洗濯機の構造を簡単化するとともに、その機体を軽量
化することを目的としており、さらに低コストのドラム
式洗濯機を提供することを目的とする。An object of the present invention is to eliminate the problems of the prior art, simplify the structure of the drum-type washing machine, and reduce the weight of the machine, and further provide a low-cost drum-type washing machine. Aim.
上記目的を達成するために本発明のドラム式洗濯機
は、外枠と、洗濯槽と脱水槽とを兼ねるドラムと、該ド
ラムを収容する水槽と、前記ドラムを回転駆動する駆動
装置と、前記ドラム及び前記水槽を前記外枠に吊り下げ
る緩衝装置とを備え、前記ドラムを前記水槽内で横形に
軸受け支持して洗濯とすすぎと脱水とを行うドラム式洗
濯機において、前記水槽を円筒体と該円筒体の両端に水
密に固設した端板とで構成し、前記駆動装置を前記水槽
に取り付ける取り付け部材を設け、該取り付け部材を前
記駆動装置を取り付ける平板部と前記ドラムの回転軸に
沿う方向の両側端部を立ち上げた側板部とで構成し、該
側板部のそれぞれを前記円筒体の両端に固設した端板の
それぞれの下方に取り付けると共に、前記緩衝装置を前
記側板部に接続して前記水槽、ドラム及び駆動装置を前
記外枠に吊り下げる。In order to achieve the above object, a drum-type washing machine of the present invention has an outer frame, a drum serving also as a washing tub and a dehydration tub, a water tub containing the drum, a driving device for rotating and driving the drum, A drum type washing machine comprising a drum and a shock absorber for suspending the water tub from the outer frame, wherein the drum is horizontally supported in the water tub to perform washing, rinsing, and dehydration. A mounting member for fixing the driving device to the water tank is provided at both ends of the cylindrical body, and the mounting member is provided along a flat plate portion for mounting the driving device and a rotation axis of the drum. And two side ends in the direction of the cylinder body, and each of the side plate portions is attached below each of the end plates fixed to both ends of the cylindrical body, and the shock absorber is connected to the side plate portion. Before Suspending water tank, a drum and a driving unit to the outer frame.
以上の構成において、水槽の円筒体にモータや減速機
を取付けないので、前記円筒体を薄板で形成でき、した
がって、水槽を軽くすることができる。また、モータや
減速機を固設する取付け部材を、平板部とその平板部の
両側端部を曲げて立ち上げた側板部とを有する単純かつ
小さな形状にできる。またモータや減速機が固設される
平板部に水槽の円筒体の形状や強度に関わりなく押し出
し部（チャンネルやリブなど）を形成することが容易に
なり、平板部を洗いやすすぎ時にドラムを回転させるこ
とにより生じる反力と脱水時に振動で生じる慣性力に耐
える、強度及び剛性を有するように構成することがで
き、補強部材などを必要としなくなり、取り付け部材を
単純な構成で軽量化できる。In the above configuration, since the motor and the reduction gear are not attached to the cylindrical body of the water tank, the cylindrical body can be formed of a thin plate, and thus the water tank can be made light. Further, the mounting member for fixing the motor and the speed reducer can be formed in a simple and small shape having a flat plate portion and side plate portions that are formed by bending both side ends of the flat plate portion. In addition, it is easy to form extrusions (channels, ribs, etc.) on the flat plate where the motor and reduction gear are fixed, regardless of the shape and strength of the water tank cylinder. It can be configured to have strength and rigidity to withstand the reaction force generated by rotation and the inertial force generated by vibration during dehydration, so that a reinforcing member or the like is not required, and the weight of the mounting member can be reduced with a simple configuration.
以下、本発明を、図面にもとづいて説明すると、第１
図は、本発明の一実施例を適用したドラム式洗濯機の構
造を示す横断面図、第２図は、第１図における右側面
図、第３図は、他の実施例を適用したドラム式洗濯機の
右側面図である。Hereinafter, the present invention will be described with reference to the drawings.
1 is a cross-sectional view showing the structure of a drum type washing machine to which one embodiment of the present invention is applied, FIG. 2 is a right side view in FIG. 1, and FIG. 3 is a drum to which another embodiment is applied. It is a right view of a type washing machine.
第１図と第２図において、洗いから脱水まで動作する
機械部２は、後記の緩衝装置24で吊り下げられて、外枠
１に収容されている。洗浄水及びすすぎ水を溜める水槽
３は、薄板（ステンレス鋼板、または防錆処理を施した
鋼板など）で形成した円筒体４とその円筒体４の両端
に、水密に固設された円形状の端板5,端板６とで構成さ
れ、前記円筒体４に、洗濯物Ａをドラム８に出し入れす
る投入口4a,洗浄水やすすぎ水の排水口4b,給水弁（図示
せず）を通して供給される水道水の注水口4c,が穿設さ
れている。そして、投入口4aには、水槽蓋７が蝶設され
ている。In FIGS. 1 and 2, the mechanical unit 2 that operates from washing to dehydration is suspended by a shock absorber 24 described later and accommodated in the outer frame 1. The water tank 3 for storing the washing water and the rinsing water has a cylindrical body 4 formed of a thin plate (such as a stainless steel plate or a steel plate subjected to rust prevention treatment) and circular circular members fixed to both ends of the cylindrical body 4 in a watertight manner. An end plate 5 and an end plate 6 are provided. The cylindrical body 4 is supplied to the cylindrical body 4 through an inlet 4a for taking in / out the laundry A into / from the drum 8, a washing water / rinsing water outlet 4b, and a water supply valve (not shown). The tap water inlet 4c is provided. Further, a water tank lid 7 is butterfly-shaped at the input port 4a.
洗濯槽と脱水槽とを兼ねるドラム８は、円筒体９とそ
の円筒体９の両端に固設された端板10,端板11とで構成
され、前記水槽３の端板5,端板６の中央部で水平に軸受
されて、前記水槽３内に収納されている。そして、円筒
体９は、内周に等間隔に配設した、中心方向に沿って突
出した形状のリフタ8a,内周の全域に亘って穿設され
た、直径が４〜6mmの***9b,洗濯物Ａを出し入れするた
めに、中央部を切り抜いて開口させた投入口9c,その投
入口9cに蝶設されたロック装置を備えたドラム蓋9dを有
している。リフタ9aは、洗いやすすぎ時に、洗濯物Ａを
かく拌し、***9bは、脱水時に脱水穴として、機能す
る。このように構成したドラム８を、前記したように水
槽３に収納して回転自在に軸受けして、回転させるため
に、端板10の中心には、ハブ部12aと軸部12bを一体化し
た回転軸12が固設され、端板11の中心には、ハブ部13a
と軸部13bを一体化した回転軸13が固設されて、前記回
転軸13には、ドラム駆動用のプーリ14が締結されてい
る。The drum 8 serving as both a washing tub and a dewatering tub is composed of a cylindrical body 9 and end plates 10 and 11 fixed to both ends of the cylindrical body 9. And is housed in the water tank 3 horizontally. Then, the cylindrical body 9 is provided at equal intervals on the inner circumference, a lifter 8a having a shape protruding along the center direction, a small hole 9b having a diameter of 4 to 6 mm, which is bored throughout the entire inner circumference, In order to take in and out the laundry A, it has an input port 9c cut out at the center and opened, and a drum lid 9d provided with a lock device butterfly-arranged at the input port 9c. The lifter 9a stirs the laundry A at the time of washing and rinsing, and the small hole 9b functions as a dewatering hole at the time of dehydration. As described above, the hub 12a and the shaft 12b are integrated at the center of the end plate 10 in order to house the drum 8 in the water tank 3 and rotatably bear and rotate the drum 8 as described above. A rotating shaft 12 is fixedly mounted, and a hub 13a is provided at the center of the end plate 11.
A rotating shaft 13 integrally formed with a shaft portion 13b is fixedly mounted, and a pulley 14 for driving a drum is fastened to the rotating shaft 13.
前記したドラム８を回転させる駆動部16は、水槽３の
下方側に配設した取付け部材15に固設されている。前記
取付け部材15は、強度及び剛体を高めるために形成され
た押出し部（チャンネルやリブなどで、図示せず）と折
り曲げ縁部15dを有し、前記駆動部16が固設される平板
部15aと、当取付け部材15を前記水槽３の端板5,端板６
に係合させて固設するために、前記平板部15aの両側端
部を曲げて立ち上げて形成した、端面が弓形状の側板15
b,側板15cとで、一体的に構成され、そして、前記した
ように、前記水槽３の端板5,端板６に、前記側板15b,側
板15cが係合されて、締結され、前記水槽３の下方側に
配設されている。また、前記側板15b,側板15cには、後
記の緩衝装置24で機械部２を吊り下げるために、吊り金
具17が固設されている。The driving unit 16 for rotating the drum 8 is fixed to a mounting member 15 disposed below the water tank 3. The mounting member 15 has an extruded portion (eg, a channel or a rib, not shown) formed to increase strength and rigidity, and a bent edge portion 15d, and a flat plate portion 15a on which the driving portion 16 is fixed. And the mounting member 15 is connected to the end plate 5 and the end plate 6 of the water tank 3.
In order to engage and fix the flat plate portion 15a, both end portions of the flat plate portion 15a are formed by bending and rising, and the
b, the side plate 15c and the end plate 5 and the end plate 6 of the water tank 3, as described above, the side plate 15b and the side plate 15c are engaged and fastened, and the water tank 3 is disposed below. In addition, a hanging bracket 17 is fixed to the side plate 15b and the side plate 15c so that the mechanical unit 2 can be hung by the shock absorber 24 described later.
前記した駆動部16は、前記取付け部材15の平板部15a
に固設された、コンデンサ誘導モータ18（以下、単にモ
ータという）と、前記モータ18の出力軸に、軸継手19で
入力軸が接続された回転速度の切替えが可能な減速機20
と、前記減速機20の出力軸に締結されたプーリ21とで、
構成され、前記プーリ21と前記プーリ14とに、ベルト22
を掛けたベルト伝動機構で、ドラム８を駆動する。そし
て、モータ18は、洗い及びすすぎ時に、ドラム８を、減
速機20とベルト伝動機構で減速して、40〜60rpmの回転
速度で回転させるか、または、正転0.5〜2.5回転−休止
（モータ18の電源を切る）0.3〜2.0秒−逆転0.5〜2.5回
転−休止0.3〜2.0秒の周期で正逆反転させ、脱水時に
は、減水機20で減速せずに、高速回転（たとえば、600
〜1100rpm）させる。減速機20は、歯車減速部20aとクラ
ッチ部20bとを組み合わせ、それにクラッチ部20bの切替
えを操作するソレノイド、または切替モータ（図示せ
ず）を備えて構成され、前記したようにモータ18の回転
を、洗い及びすすぎ時に減速して、脱水時には減速せず
に、出力する。The driving unit 16 is provided with a flat plate portion 15a of the mounting member 15.
A condenser induction motor 18 (hereinafter, simply referred to as a motor) fixed to the motor, and a speed reducer 20 capable of switching a rotation speed in which an output shaft of the motor 18 is connected to an input shaft by a shaft coupling 19.
And a pulley 21 fastened to the output shaft of the speed reducer 20,
The pulley 21 and the pulley 14 have a belt 22
, The drum 8 is driven by the belt transmission mechanism. When washing and rinsing, the motor 18 reduces the speed of the drum 8 by the speed reducer 20 and the belt transmission mechanism and rotates the drum 8 at a rotation speed of 40 to 60 rpm, or a normal rotation of 0.5 to 2.5 rotations-stop (motor 18 power off) 0.3-2.0 seconds-reverse rotation 0.5-2.5 rotations-pause 0.3-2.0 seconds in the normal and reverse direction, during dehydration, without deceleration by water reducer 20, high-speed rotation (for example, 600
~ 1100rpm). The speed reducer 20 is configured by combining a gear reduction unit 20a and a clutch unit 20b, and further includes a solenoid for operating switching of the clutch unit 20b, or a switching motor (not shown). Is decelerated during washing and rinsing, and output without deceleration during dehydration.
水槽３の排水口4bに接続された排水弁（電磁弁）23
は、取付け部材15の平板部15aに固設され、その吐出口
部に排水ホース23aが接続されている。A drain valve (solenoid valve) 23 connected to the drain port 4b of the water tank 3
Is fixed to the flat plate portion 15a of the mounting member 15, and a discharge hose 23a is connected to a discharge port thereof.
緩衝装置24は、機械部２を吊り下げる吊り棒24aと、
筒体に、前記吊り棒24aに沿って上下方向に伸縮する圧
縮コイルばねと摺動し摩擦によって減衰力を生じる摩擦
輪（ともに、図示せず）を内蔵したショックアブソーバ
24bとで、構成されている。そして、ドラム８を内包す
る水槽3,取付け部材15,駆動部16で組立てられた前記機
械部２は、前記緩衝装置24によって、外枠１の上縁コー
ナ部に固設したコーナプレート1aから、取付け部材15の
側板15b,側板15cに固設した吊り金具17を支持し、振り
子状（４本吊りの両端自由支持）につり下げられてい
る。さらに、ドラム８を低速回転、または短周期で正逆
反転させたときに、自由振動で水槽３が大きく振れるの
を阻止するために、外枠１のコーナ部に固設した留め具
1bと前記吊り棒24aとの間に、可撓性に富む弾性体（ゴ
ム、または、ばね）で成形された弾性輪25を介在させ、
前記吊り棒24aのそれぞれを、相反する横方向（前と後
方向、または、左と右方向）に引張り、振動系における
横方向の固有振動数と減衰力を高めて、緩衝支持されて
いる。The shock absorber 24 includes a suspension rod 24a for suspending the mechanical unit 2,
A shock absorber having a built-in friction ring (both not shown) in a cylindrical body that slides with a compression coil spring that expands and contracts vertically along the hanging rod 24a and generates a damping force by friction.
24b. The mechanical part 2 assembled by the water tank 3 containing the drum 8, the mounting member 15, and the driving part 16 is moved from the corner plate 1 a fixed to the upper edge corner part of the outer frame 1 by the buffering device 24. The hanging member 17 fixed to the side plates 15b and 15c of the mounting member 15 is supported, and is suspended in a pendulum shape (both ends are freely supported by four suspensions). Furthermore, a fastener fixed to the corner of the outer frame 1 in order to prevent the water tank 3 from swinging largely due to free vibration when the drum 8 is rotated at a low speed or reversed in a short cycle.
An elastic ring 25 formed of an elastic body (rubber or spring) rich in flexibility is interposed between 1b and the hanging rod 24a,
Each of the suspension rods 24a is pulled in opposite lateral directions (front and rear directions, or left and right directions) to increase the natural frequency and the damping force in the lateral direction of the vibration system and is buffered and supported.
以上が、本発明の一時を適用したドラム式洗濯機の構
成である。The above is the configuration of the drum type washing machine to which the present invention is applied at one time.
第３図は、緩衝支持構造の他の実施例を示し、機械部
２は、弾性論25を、水槽３の端板5,端板６のそれぞれに
固設した留め具26と前記緩衝装置24の吊り棒24aとの間
に、介在させ、緩衝支持されている。FIG. 3 shows another embodiment of the shock-absorbing support structure, in which the mechanical part 2 comprises elasticity 25, a fastener 26 fixed to each of the end plates 5 and 6 of the water tank 3, and the shock absorber Between the suspension rod 24a and the suspension rod 24a.
次に、その動作について説明する。 Next, the operation will be described.
運転は、ドラム８内に洗濯物Ａと洗剤を投入し、操作
盤上の電源スイッチ（図示せず）を入れ、運転プログラ
ムを選択し、それを入力することにより開始される。The operation is started by putting laundry A and detergent into the drum 8, turning on a power switch (not shown) on the operation panel, selecting an operation program, and inputting it.
洗いは、給水弁（図示せず）が開き、水槽３内にあら
かじめ設定した水位まで給水され、この水位を、水位セ
ンサ（図示せず）が検出して、給水弁が閉じ、同時にモ
ータ18に通電されることでおこなわれる。モータ18は回
転して、その回転が減速機８とベルト伝動機構により減
衰されてドラム８へと伝達される。ドラム８は、前述し
たように、40〜60rpmで回転するか、または短周期で正
逆反転して、リフタ9aにより洗濯物Ａに衝撃を加えると
ともに、かく拌させ、洗濯物Ａを洗浄する。そして、所
定の洗浄時間が経過するとモータ18が停止し、すすぎ工
程へ移る。For washing, a water supply valve (not shown) is opened, water is supplied to a predetermined water level in the water tank 3, and this water level is detected by a water level sensor (not shown). It is performed by being energized. The motor 18 rotates, and the rotation is attenuated by the speed reducer 8 and the belt transmission mechanism and transmitted to the drum 8. As described above, the drum 8 rotates at 40 to 60 rpm, or reverses its direction in a short cycle, applies an impact to the laundry A by the lifter 9a, and stirs the laundry A to wash the laundry A. Then, when a predetermined cleaning time has elapsed, the motor 18 stops, and the process proceeds to a rinsing step.
すすぎは、まず、排水弁23が開き、洗浄水が排出さ
れ、その後、後記の脱水運転をおこない、次に、前記し
た洗い工程と同様に、水槽３内に給水され、モータ18が
動作しておこなわれる。そして、所定回数のすすぎをお
こなって、終了する。In the rinsing, first, the drain valve 23 is opened, and the washing water is discharged. Thereafter, a dehydration operation described later is performed. Next, as in the above-described washing process, water is supplied into the water tank 3 and the motor 18 operates. It is carried out. Then, rinsing is performed a predetermined number of times, and the process ends.
以上説明した、洗い及びすすぎ動作時に、洗濯物Ａが
多量の水を含んで大きな回転負荷となっているために、
ドラム８へ大きな回転力（トルク）を伝え、前記ドラム
８を低速回転、または正逆反転させている。したがっ
て、前記した回転力に等しい反力（反回転力）を、減速
機20とモータ18が受け、その力が取付け部の取付け部材
15に作用する。During the washing and rinsing operations described above, since the laundry A contains a large amount of water and has a large rotational load,
A large rotational force (torque) is transmitted to the drum 8, and the drum 8 is rotated at a low speed or reversed in the forward and reverse directions. Therefore, the reduction gear 20 and the motor 18 receive a reaction force (counter rotation force) equal to the above-described rotation force, and the force is applied to the mounting member of the mounting portion.
Acts on 15.
すすぎにつづいて、脱水は、排水弁23に通電してすす
ぎ水を排出し、その後、モータ18に通電し、減速機20と
ベルト伝動機構により減速して、ドラム８を低速回転さ
せ、そして、所定の時間が経過した後、クラッチ20bを
切替えて、モータ18の回転をベルト伝動機構のみで減速
し、ドラム８を高速回転（600〜1100rpm）させることで
おこなう。この脱水運転の高速回転時に、ドラム８内の
洗濯物Ａの片寄りによるアンバランスで、機械部２が振
動する。この振動により、モータ18,減速機20などの質
量の大きな部品に大きな慣性力が生じ、前記４慣性力が
取付け部の取付け部材15に作用する。Following the rinsing, the dehydration energizes the drain valve 23 to discharge the rinsing water, then energizes the motor 18, reduces the speed by the speed reducer 20 and the belt transmission mechanism, rotates the drum 8 at a low speed, and After a predetermined time has elapsed, the clutch 20b is switched, the rotation of the motor 18 is reduced only by the belt transmission mechanism, and the drum 8 is rotated at a high speed (600 to 1100 rpm). During the high-speed rotation of the spin-drying operation, the mechanical unit 2 vibrates due to imbalance due to the bias of the laundry A in the drum 8. Due to this vibration, a large inertial force is generated in parts having a large mass, such as the motor 18 and the speed reducer 20, and the four inertial forces act on the mounting member 15 of the mounting portion.
また、以上説明した、洗い及びすすぎ時と脱水の低速
回転時において、ドラム８の回転起動時に自由振動が生
じ、特に、正逆反転速度及び低速回転速度が、機械部２
を緩衝装置24で吊り下げた振動系の固有振動数に一致、
または近い場合に、前記機械部２が大きく振れて、外枠
１に衝突することがある。この自由振動による大きな振
れは、緩衝装置24の吊り棒24aを弾性輪25で、相反する
横方向に引張り、振動系の固有振動数と減衰力を高める
ことにより、その発生が阻止される。In addition, during the washing and rinsing and the low-speed rotation of dehydration described above, free vibration occurs when the rotation of the drum 8 is started.
Matches the natural frequency of the vibration system suspended by the shock absorber 24,
Or, when it is close, the mechanical part 2 may swing greatly and collide with the outer frame 1. The large run-out due to this free vibration is prevented from occurring by increasing the natural frequency and the damping force of the vibration system by pulling the suspension rod 24a of the shock absorber 24 with the elastic wheel 25 in opposite transverse directions.
以上が本発明のドラム式洗濯機の構造と緩衝支持構造
に係わる実施例であり、本実施例によれば、ドラム８を
収容する水槽３を、円筒体４の両端に端板5,端板６を水
密に固設して構成し、前記水槽３を、駆動部16が固設さ
れる平板部15aとその両側端部を立ち上げて形成した側
板15b,側板15cとで構成した取付け部15aで受け、それを
緩衝装置24で支持する構造にすることにより、水槽３の
円筒体４を薄板で形成でき、また、取付け部材15の平板
部15aを、洗いやすすぎ時にドラム３の回転により生じ
る反力や脱水時の振動により生じる慣性力に耐える強度
及び剛性を有するように、補強部材を要せずして、形成
できる。The above is the embodiment relating to the structure of the drum type washing machine and the buffer support structure of the present invention. According to this embodiment, the water tub 3 accommodating the drum 8 is provided with the end plate 5 and the end plate 6 is fixedly provided in a watertight manner, and the water tank 3 is provided with a mounting portion 15a formed of a flat plate portion 15a on which the driving portion 16 is fixedly mounted and side plates 15b and 15c formed by raising both side ends thereof. And by supporting it with the shock absorber 24, the cylindrical body 4 of the water tank 3 can be formed of a thin plate, and the flat plate portion 15a of the mounting member 15 is generated by the rotation of the drum 3 during rinsing and rinsing. It can be formed without a reinforcing member so as to have strength and rigidity to withstand inertial force generated by reaction force or vibration during dehydration.
また、前記機械部２を吊り下げて緩衝支持している緩
衝装置24の吊り棒24aのそれぞれを、弾性輪25で、相反
する横方向に引く、緩衝支持構造にすることにより、自
由振動で機械部（水槽３）が大きく振れるのを、阻止で
きる。In addition, each of the suspension rods 24a of the shock absorber 24, which suspends and supports the mechanical unit 2 by shock absorption, is pulled by the elastic ring 25 in the opposite lateral direction to form a shock absorbing support structure. The part (water tank 3) can be prevented from swinging greatly.
本発明によれば、水槽の円筒体を薄板で形成でき、ま
た取り付け部材を単純かつ小さな形状にできるので、機
体の軽量化と構造の単純化及び小型化、そしてコスト低
減が可能になるなどの効果がある。ADVANTAGE OF THE INVENTION According to this invention, since the cylindrical body of a water tank can be formed with a thin plate, and a mounting member can be made simple and small shape, weight reduction of a body, simplification and miniaturization of a structure, and cost reduction are attained. effective.
第１図は、本発明の一実施例を適用したドラム式洗濯機
の構造を示す横断面図、第２図は、第１図における右側
面図、第３図は、他の実施例を適用したドラム式洗濯機
の右側面図である。 ２……機械部、３……水槽、４……円筒体、5,6……端
板、８……ドラム、15……取付け部材、15a……平板
部、15b,15c……側板、16……駆動部、24……緩衝装
置、24a……吊り棒、24b……ショックアブソーバ、25…
…弾性輪FIG. 1 is a cross-sectional view showing the structure of a drum type washing machine to which one embodiment of the present invention is applied, FIG. 2 is a right side view in FIG. 1, and FIG. 3 is another embodiment. It is a right view of the drum type washing machine. 2 ... Mechanical part, 3 ... Water tank, 4 ... Cylindrical body, 5,6 ... End plate, 8 ... Drum, 15 ... Mounting member, 15a ... Flat plate part, 15b, 15c ... Side plate, 16 …… Drive unit, 24 …… Shock absorber, 24a …… Hanging rod, 24b …… Shock absorber, 25…
… Elastic ring
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−78163（ＪＰ，Ａ) 特開 昭56−158692（ＪＰ，Ａ) 特開 平１−166799（ＪＰ，Ａ) 実開 昭50−80271（ＪＰ，Ｕ) 実公 昭50−394（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.6，ＤＢ名) D06F 25/00 D06F 37/22 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-50-78163 (JP, A) JP-A-56-158692 (JP, A) JP-A-1-166799 (JP, A) 80271 (JP, U) Jiko 50-394 (JP, Y1) (58) Fields investigated (Int. Cl. 6 , DB name) D06F 25/00 D06F 37/22
Claims (1)
と、該ドラムを収容する水槽と、前記ドラムを回転駆動
する駆動装置と、前記ドラム及び前記水槽を前記外枠に
吊り下げる緩衝装置とを備え、前記ドラムを前記水槽内
で横形に軸受け支持して洗濯とすすぎと脱水とを行うド
ラム式洗濯機において、 前記水槽を円筒体と該円筒体の両端に水密に固設した端
板とで構成し、 前記駆動装置を前記水槽に取り付ける取り付け部材を設
け、 該取り付け部材を前記駆動装置を取り付ける平板部と前
記ドラムの回転軸に沿う方向の両側端部を立ち上げた側
板部とで構成し、 該側板部のそれぞれを前記円筒体の両端に固設した端板
のそれぞれの下方に取り付けると共に、 前記緩衝装置を前記側板部に接続して前記水槽、ドラム
及び駆動装置を前記外枠に吊り下げるようにしたことを
特徴とするドラム式洗濯機。An outer frame, a drum serving also as a washing tub and a dewatering tub, a water tub accommodating the drum, a driving device for rotating the drum, and suspending the drum and the water tub on the outer frame. A drum-type washing machine having a shock absorber and performing washing, rinsing, and dewatering by horizontally supporting the drum in the water tub and supporting the drum, wherein the water tub is fixed to a cylindrical body and both ends of the cylindrical body in a watertight manner. An end plate, and a mounting member for mounting the driving device to the water tank is provided, and the mounting member is a flat plate portion for mounting the driving device and a side plate portion on which both ends in the direction along the rotation axis of the drum are raised. Each of the side plate portions is attached below each of the end plates fixed to both ends of the cylindrical body, and the buffer is connected to the side plate portion, and the water tank, the drum, and the driving device are connected to each other. Outside Drum type washing machine according to claim was that as hung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25017390A JP2892801B2 (en) | 1990-09-21 | 1990-09-21 | Drum type washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25017390A JP2892801B2 (en) | 1990-09-21 | 1990-09-21 | Drum type washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04129588A JPH04129588A (en) | 1992-04-30 |
| JP2892801B2 true JP2892801B2 (en) | 1999-05-17 |
Family
ID=17203907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25017390A Expired - Fee Related JP2892801B2 (en) | 1990-09-21 | 1990-09-21 | Drum type washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892801B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177960B (en) * | 2016-03-10 | 2021-01-22 | 青岛海尔洗衣机有限公司 | Damping suspender structure of washing machine and washing machine |
-
1990
- 1990-09-21 JP JP25017390A patent/JP2892801B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04129588A (en) | 1992-04-30 |
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