JPH06233890A - Drum type washing machine - Google Patents
Drum type washing machineInfo
- Publication number
- JPH06233890A JPH06233890A JP5019835A JP1983593A JPH06233890A JP H06233890 A JPH06233890 A JP H06233890A JP 5019835 A JP5019835 A JP 5019835A JP 1983593 A JP1983593 A JP 1983593A JP H06233890 A JPH06233890 A JP H06233890A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- water tank
- drum
- main body
- water
- 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.)
- Granted
Links
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水平軸回りに回転駆動
されるドラムで洗濯物の洗濯と遠心脱水とを行なうドラ
ム式洗濯機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine for washing and centrifugally dehydrating laundry with a drum which is driven to rotate about a horizontal axis.
【０００２】[0002]
【従来の技術】従来のドラム式洗濯機とこのドラム式洗
濯機に使用している防振ダンパーは、図６・図７に示す
ような構成となっている。2. Description of the Related Art A conventional drum type washing machine and an anti-vibration damper used in this drum type washing machine are constructed as shown in FIGS.
【０００３】１はドラムで、外周部に多数の通水孔２を
全面に設けている。３はドラム１を内包し洗濯水を溜め
る水槽である。４はドラム１を回転駆動するモータ、５
は一端をドラム１の回転中心に固定した水平軸、６は水
平軸５の他端に設けたドラムプーリ、７はモータ４とプ
ーリ６を連結するベルトである。８は水槽３を本体９よ
り吊下げるバネ体、１０は水槽３に設けた脱水時の振動
を低減するための重りである。また１１は水槽３の振動
を減衰させる防振ダンパーで、詳しくは図７に示すよう
な構成となっている。すなわち、シリンダー１２と摺動
部材１３とを備えたピストン１４と、ピストンロッド１
５と、水槽３と本体９に取り付ける取付部材１６・１７
を有している。Reference numeral 1 denotes a drum, which has a large number of water passage holes 2 on its outer peripheral surface. 3 is a water tank which contains the drum 1 and stores the washing water. 4 is a motor for rotating the drum 1, 5
Is a horizontal shaft having one end fixed to the rotation center of the drum 1, 6 is a drum pulley provided at the other end of the horizontal shaft 5, and 7 is a belt connecting the motor 4 and the pulley 6. Reference numeral 8 is a spring body for suspending the water tank 3 from the main body 9, and 10 is a weight provided in the water tank 3 for reducing vibration during dehydration. Further, reference numeral 11 is a vibration damping damper for damping the vibration of the water tank 3 and has a structure shown in detail in FIG. That is, the piston 14 including the cylinder 12 and the sliding member 13, and the piston rod 1
5, the attachment members 16 and 17 attached to the water tank 3 and the main body 9
have.
【０００４】以上の構成で、洗濯工程時にはドラム１は
モータ４によって低速で回転駆動され、ドラム１内の洗
濯物は持ち上げられては水面上に落下される。こうして
洗濯工程が進行する。すすぎ工程時においても、洗濯工
程と同様の動作となるものである。脱水工程時にはドラ
ム１は高速で回転され、洗濯物は遠心脱水される。この
ときドラム１内に衣類の片寄り、すなわちアンバランス
が生じると、ドラム１および水槽３は振動する。特に脱
水起動時には共振によって大きな振動を生ずるもので、
この共振振動を防止するために、緩衝力の非常に大きな
防振ダンパー１１を用いているものである。With the above construction, the drum 1 is rotationally driven at a low speed by the motor 4 during the washing process, and the laundry in the drum 1 is lifted and dropped onto the water surface. Thus, the washing process proceeds. In the rinsing process, the same operation as in the washing process is performed. During the dehydration process, the drum 1 is rotated at a high speed and the laundry is centrifugally dehydrated. At this time, if the clothes are offset in the drum 1, that is, imbalance occurs, the drum 1 and the water tank 3 vibrate. Especially when starting dehydration, it causes a large vibration due to resonance,
In order to prevent this resonance vibration, an anti-vibration damper 11 having an extremely large buffering force is used.
【０００５】[0005]
【発明が解決しようとする課題】前記従来の構成のドラ
ム式洗濯機は、脱水時にドラム１内の衣類が偏った分布
をしたときに水槽３が大きく振動するものである。特に
脱水起動時に共振現象が生じた場合は、非常に大きな振
動となって、水槽３が本体９に衝突して騒音が発生した
り、本体が移動したりする。また大きなアンバランス状
態でドラム１が所定の脱水回転数で回転したとき、防振
ダンパー１１を介して水槽３の振動が本体９に伝わり、
さらには洗濯機を設置している床面にも大きな振動を伝
えることになる。これによって床面が大きく振動し、木
造家屋においては家屋全体が振動して使用者に不快感を
与え、騒音面でも大きな問題となるものである。In the conventional drum type washing machine, the water tub 3 vibrates greatly when the clothes in the drum 1 are unevenly distributed during dehydration. In particular, when a resonance phenomenon occurs at the time of starting dehydration, a very large vibration occurs, and the water tank 3 collides with the main body 9 to generate noise or the main body moves. Further, when the drum 1 rotates at a predetermined dewatering rotation speed in a large unbalanced state, the vibration of the water tank 3 is transmitted to the main body 9 via the vibration damping damper 11.
In addition, large vibrations will be transmitted to the floor where the washing machine is installed. As a result, the floor vibrates greatly, and in a wooden house, the entire house vibrates, causing the user to feel uncomfortable and causing a serious noise problem.
【０００６】本発明は、このような従来の構成が有して
いる課題を解決しようとするもので、水槽の振動を検知
する振動検知装置を適切な位置に設けることにより、ド
ラム内のアンバランスの位置に関わらず、脱水工程時の
共振振動あるいは床面に伝わる振動を最小限とするドラ
ム式洗濯機を提供することを第一の目的としている。The present invention is intended to solve the problem of such a conventional structure, and by providing a vibration detecting device for detecting the vibration of the water tank at an appropriate position, the imbalance in the drum is unbalanced. It is a first object of the present invention to provide a drum-type washing machine that minimizes resonance vibration or vibration transmitted to the floor surface during the dehydration process regardless of the position.
【０００７】また前記第一の目的に関連して、ドラム内
のアンバランスの位置およびアンバランスの量に応じた
脱水回転制御を行って、脱水工程時の共振振動あるいは
床面に伝わる振動を最小限とするドラム式洗濯機を提供
することを第二の目的としている。Further, in relation to the first object, the spin-drying rotation control according to the position and the amount of the unbalance in the drum is performed to minimize the resonance vibration or the vibration transmitted to the floor during the spin-drying process. The second purpose is to provide a limited drum type washing machine.
【０００８】また、ドラム内のアンバランスの量に関わ
らず異常振動が生じたときに脱水回転制御を行って、脱
水工程時の共振振動あるいは床面に伝わる振動を最小限
とするドラム式洗濯機を提供することを第三の目的とし
ている。Further, when abnormal vibration occurs regardless of the amount of unbalance in the drum, spin-drying rotation control is performed to minimize resonance vibration during the spin-drying process or vibration transmitted to the floor surface. The third purpose is to provide.
【０００９】[0009]
【課題を解決するための手段】第一の目的を達成するた
めの本発明の第一の手段は、外周に通水孔を設けたドラ
ムと、ドラムを内包し洗濯水を溜める水槽と、前記ドラ
ムを回転駆動するモータと、前記水槽を収容する本体
と、前記水槽を本体から吊すバネ体と、水槽と本体間に
取り付けて水槽の振動を抑制する防振ダンパーと、前記
水槽に設けた振動を検知する振動検知装置と、この振動
検知装置の出力に応じ脱水回転制御を行う制御装置とを
備え、前記振動検知装置はドラム内の前部あるいは後部
に位置するアンバランスに対し、それぞれの水槽振動が
略同一となる位置に設けたドラム式洗濯機とするもので
ある。The first means for achieving the first object of the present invention is to provide a drum having a water passage hole on the outer periphery thereof, a water tank containing the drum for storing washing water, and A motor that rotationally drives a drum, a main body that houses the water tank, a spring body that suspends the water tank from the main body, a vibration damping damper that is installed between the water tanks and suppresses vibration of the water tank, and vibration provided in the water tank. A vibration detection device for detecting the vibration and a control device for controlling the spin-drying rotation according to the output of the vibration detection device, wherein the vibration detection device is provided for each of the water tanks with respect to the imbalance located at the front or rear of the drum. The drum type washing machine is provided at a position where vibrations are substantially the same.
【００１０】また第二の目的を達成するための本発明の
第二の手段は、外周に通水孔を設けたドラムと、ドラム
を内包し洗濯水を溜める水槽と、前記ドラムを回転駆動
するモータと、前記水槽を収容する本体と、前記水槽を
本体から吊すバネ体と、水槽と本体間に取り付けて水槽
の振動を抑制する防振ダンパーと、前記水槽の前部と後
部に複数個設けた振動を検知する振動検知装置と、この
振動検知装置の出力に応じ脱水回転制御を行う制御装置
とを備え、前記複数個の振動検知装置の出力に応じて脱
水回転制御を行うドラム式洗濯機とするものである。The second means of the present invention for achieving the second object is to rotate the drum, which has a water passage hole on the outer periphery thereof, a water tank which contains the drum and stores the washing water therein, and the drum. A motor, a main body that houses the water tank, a spring body that suspends the water tank from the main body, a vibration damping damper that is installed between the water tank and the main body to suppress vibration of the water tank, and a plurality of units are provided at the front and rear portions of the water tank. A drum-type washing machine that includes a vibration detection device that detects vibrations and a control device that controls the spin-drying rotation according to the output of the vibration detection device, and that controls the spin-drying rotation according to the outputs of the plurality of vibration detection devices. It is what
【００１１】また第三の目的を達成するための本発明の
第三の手段は、外周に通水孔を設けたドラムと、ドラム
を内包し洗濯水を溜める水槽と、前記ドラムを回転駆動
するモータと、前記水槽を収容する本体と、前記水槽を
本体から吊すバネ体と、水槽と本体間に取り付けて水槽
の振動を抑制する防振ダンパーと、前記水槽の振動を検
知する振動検知装置と、この振動検知装置の出力に応じ
脱水回転制御を行う制御装置とを備え、前記振動検知装
置は水槽の中心軸に関してモータと対称となる位置に設
け、振動検知装置の出力に応じて脱水回転制御を行うド
ラム式洗濯機とするものである。A third means of the present invention for achieving the third object is to rotate the drum, a drum having a water passage on the outer periphery thereof, a water tank containing the drum for storing washing water, and the drum. A motor, a main body that houses the water tank, a spring body that suspends the water tank from the main body, a vibration damping damper that is installed between the water tank and the main body to suppress vibration of the water tank, and a vibration detection device that detects vibration of the water tank. , And a control device for performing dehydration rotation control according to the output of the vibration detection device, wherein the vibration detection device is provided at a position symmetrical to the motor with respect to the central axis of the water tank, and the dehydration rotation control is performed according to the output of the vibration detection device. It is a drum type washing machine that performs.
【００１２】[0012]
【作用】本発明の第一の手段は、前部あるいは後部に位
置するアンバランスに対し、同一のアンバランス量では
それぞれの水槽振動が略同一となる位置に設けた振動検
知装置によって、ドラム内のアンバランスの位置に関わ
らずアンバランス量によって脱水回転を制御できるドラ
ム式洗濯機として作用するものである。According to the first means of the present invention, the inside of the drum is detected by the vibration detecting device provided at the position where the vibrations of the respective water tanks are substantially the same for the same amount of unbalance with respect to the unbalance located at the front part or the rear part. The drum type washing machine can control the spin-drying rotation according to the unbalanced position regardless of the unbalanced position.
【００１３】本発明の第二の手段は、水槽の前部と後部
に振動を検知する複数個の振動検知装置を設けて、ドラ
ム内のアンバランスの位置およびアンバランス量を特定
し、ドラム内のアンバランスの位置およびアンバランス
の量に応じた脱水回転制御ができるドラム式洗濯機とし
て作用するものである。The second means of the present invention is to provide a plurality of vibration detection devices for detecting vibrations at the front and rear of the water tank to identify the position and amount of unbalance in the drum, The drum-type washing machine is capable of performing spin-drying rotation control according to the unbalance position and the amount of unbalance.
【００１４】また本発明の第三の手段は、水槽の中心軸
に関してモータと対称となる位置に設けた振動検知装置
が、常に最大の振動を検知でき、ドラム内のアンバラン
ス量に関わらず脱水回転制御ができるドラム式洗濯機と
して作用するものである。The third means of the present invention is that a vibration detecting device provided at a position symmetrical to the motor with respect to the central axis of the water tank can always detect the maximum vibration, and dehydration is performed regardless of the amount of unbalance in the drum. It functions as a drum type washing machine capable of controlling rotation.
【００１５】[0015]
【実施例】以下本発明の第一の手段の一実施例を、図１
・図２に基づいて説明する。１８はドラム式洗濯機の本
体、１９は本体１８の前面に開閉自在に設けた衣類投入
ふたである。２０は水平軸２２の回りに回転駆動される
ドラム２１を内包し洗濯水を溜める水槽である。ドラム
２１は、外周部全体に通水孔２１ａを備えている。前記
水平軸２２は水槽２０を貫通しており、一端にはドラム
２１の回転中心が、他端にはドラムプーリ２３が固定さ
れている。また２４はドラムプーリ２３を駆動するモー
タ、２５はモータ２４とドラムプーリ２３とを連結する
ベルトである。水槽２０は、バネ体２６によって本体１
８に吊り下げれており、また防振ダンパー２７によって
この振動が本体１８に伝達されなうように防振支持され
ている。また２８は水槽２０の振動を抑制するための重
りである。２９は洗濯水を加熱するためのヒータであ
る。３０は水槽２０に設けた振動検知装置であり、本実
施例では加速度センサーを利用して水槽２０の振動振幅
を検知している。３１は前記振動検知装置３０の信号を
受けて、モ−タ２４・ヒータ２９等を制御する制御装置
である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the first means of the present invention will be described below with reference to FIG.
-It will be described based on FIG. Reference numeral 18 is a main body of the drum type washing machine, and 19 is a clothes insertion lid provided on the front surface of the main body 18 so as to be openable and closable. Reference numeral 20 denotes a water tank which contains a drum 21 which is rotationally driven around a horizontal axis 22 and stores washing water. The drum 21 is provided with a water passage hole 21a on the entire outer peripheral portion. The horizontal shaft 22 penetrates the water tank 20, and has a rotation center of the drum 21 fixed to one end and a drum pulley 23 fixed to the other end. Further, 24 is a motor that drives the drum pulley 23, and 25 is a belt that connects the motor 24 and the drum pulley 23. The aquarium 20 has a spring body 26 for the main body 1
8 and is vibration-proof supported by a vibration damper 27 so that this vibration is not transmitted to the main body 18. Further, 28 is a weight for suppressing the vibration of the water tank 20. 29 is a heater for heating the washing water. Reference numeral 30 denotes a vibration detection device provided in the water tank 20. In this embodiment, an acceleration sensor is used to detect the vibration amplitude of the water tank 20. Reference numeral 31 is a control device that receives a signal from the vibration detection device 30 and controls the motor 24, the heater 29, and the like.
【００１６】以下本実施例の動作について説明する。洗
濯工程時にはドラム２１はモータ２４によって低速で回
転駆動され、ドラム２１内の洗濯物を持ち上げては水面
上に落下させることで洗濯を行なう。すすぎ工程時にお
いても、ドラム２１は洗濯工程と同様に低速で回転駆動
されている。脱水工程時には、ドラム２１は高速で回転
駆動され、洗濯を終了した洗濯物を遠心脱水する。The operation of this embodiment will be described below. During the washing process, the drum 21 is rotatably driven by the motor 24 at a low speed, and the laundry in the drum 21 is lifted and dropped onto the water surface for washing. Even during the rinsing process, the drum 21 is rotationally driven at a low speed as in the washing process. During the dehydration process, the drum 21 is rotationally driven at a high speed to centrifugally dehydrate the washed laundry.
【００１７】ドラム式洗濯機では、脱水行程を開始して
ドラム２１の回転数が徐々に上昇し共振状態となったと
きに、水槽２０の振動振幅は最大となる。その後脱水が
進行して洗濯物に含まれている水分の脱水が進行するに
つれて、水槽２０の振動振幅は徐々に小さくなり、所定
の脱水回転数で最小となるものである。本実施例ではこ
の脱水行程の開始時に、衣類の片寄りすなわちアンバラ
ンスを最小とするために、ドラム２１の回転を徐々に上
げて、遠心力によって衣類をドラム２１の内壁に均等に
張り付けるバランスサイクルを実行している。こうする
ことによって、衣類のアンバランスをできる限り小さく
して、脱水時の共振による振動を抑制しているものであ
る。In the drum type washing machine, the vibration amplitude of the water tub 20 becomes maximum when the dehydration process is started and the number of rotations of the drum 21 is gradually increased to be in a resonance state. Then, as the dehydration progresses and the moisture contained in the laundry progresses, the vibration amplitude of the water tank 20 gradually decreases, and becomes the minimum at a predetermined rotation speed of the dehydration. In the present embodiment, at the start of this dehydration process, the rotation of the drum 21 is gradually increased in order to minimize unevenness of the clothes, that is, unbalance, and the clothes are evenly attached to the inner wall of the drum 21 by centrifugal force. Running a cycle. By doing so, the unbalance of the clothes is made as small as possible, and the vibration due to the resonance at the time of dehydration is suppressed.
【００１８】本実施例では、振動検知装置３０はドラム
内の前部あるいは後部に位置するアンバランスに対し、
それぞれの水槽振動が略同一となる位置に設けている。
以下図３に基づいて詳しく説明する。一般的に、水槽前
部２０ａおよび後部２０ｂの振動は、アンバランス量が
同一の場合でもアンバランスの位置に応じて相対的に変
化するものである。すなわち、衣類のアンバランスがド
ラム２１の前部に存在した場合、水槽前部２０ａと後部
２０ｂの振動は図３の実線で示すように、前部２０ａの
方が後部２０ｂに比べて大きくなる。逆に、衣類のアン
バランスがドラム２１の後部に存在した場合は、水槽前
部２０ａの振動は図３の破線で示すように後部２０ｂの
振動に比べて小さいものとなる。これらのことから、図
３に示す位置２０ｃでは、ドラム２１内の衣類のアンバ
ランスの前後位置に関わらず、同一のアンバランス量で
は水槽２０の振動が略同一となるものである。前記した
ように振動検知装置３０は、この水槽２０の位置２０ｃ
に設けているものである。このため、上下方向あるいは
左右方向の振動のいずれを検知しても同様のことがいえ
るものである。したがって、脱水行程の共振以前に本振
動検知装置３０によって水槽２０の振動を検知すれば、
ドラム２１内の衣類の片寄り量すなわちアンバランス量
を絶対的に評価できるわけである。こうしてアンバラン
ス量が大きいときは、前述のバランスサイクルを再び実
行すれば、アンバランス量を低減できるものである。す
なわち、水槽２０の共振時の振動を大きく低減すること
が可能となるとともに、脱水の最終回転数に達したとき
においてもアンバランス量が少なく、床面に伝わる振動
を最小限とすることができる。In the present embodiment, the vibration detecting device 30 is provided with respect to the imbalance located at the front or rear of the drum.
The water tank vibrations are provided at positions where they are substantially the same.
A detailed description will be given below with reference to FIG. Generally, the vibrations of the front part 20a and the rear part 20b of the water tank relatively change depending on the position of the imbalance even when the amount of imbalance is the same. That is, when the unbalance of the clothes exists in the front part of the drum 21, the vibration of the front part 20a and the rear part 20b of the water tank becomes larger in the front part 20a than in the rear part 20b as shown by the solid line in FIG. On the contrary, when the unbalance of the clothes exists in the rear part of the drum 21, the vibration of the front part 20a of the water tank is smaller than the vibration of the rear part 20b as shown by the broken line in FIG. From these things, at the position 20c shown in FIG. 3, the vibration of the water tank 20 is substantially the same with the same amount of unbalance regardless of the position before and after the unbalance of the clothes in the drum 21. As described above, the vibration detection device 30 has the position 20c of the water tank 20.
It is provided in. Therefore, the same thing can be said regardless of whether vertical or horizontal vibrations are detected. Therefore, if the vibration of the water tank 20 is detected by the vibration detection device 30 before the resonance of the dehydration process,
It is possible to absolutely evaluate the deviation amount of the clothes in the drum 21, that is, the unbalance amount. When the amount of unbalance is large in this way, the amount of unbalance can be reduced by executing the above-mentioned balance cycle again. That is, the vibration of the water tank 20 at the time of resonance can be greatly reduced, and the amount of imbalance is small even when the final rotation speed of dehydration is reached, and the vibration transmitted to the floor surface can be minimized. .
【００１９】なおこの水槽２０の振動検知を、共振回転
数以上で所定脱水回転数以下の間に実行して、アンバラ
ンス量が大きいときに前述のバランスサイクルを再び実
行すれば、所定脱水回転数に達したときにより一層床面
に伝わる振動を小さくすることができる。If the vibration of the water tank 20 is detected at a resonance rotation speed or higher and at a predetermined dewatering rotation speed or lower and the balance cycle described above is executed again when the unbalance amount is large, the predetermined dewatering rotation speed is obtained. The vibration transmitted to the floor surface can be further reduced when the temperature reaches 0.
【００２０】次いで本発明の第二の手段の実施例を図４
に基づいて説明する。本実施例は複数個の振動検知装置
を使用して、アンバランスの発生位置とアンバランスの
発生量の両方に応じて、脱水回転制御を行っているもの
である。すなわち、３２ａは水槽２０の前部に設けた前
部振動検知装置であり、３２ｂは水槽２０の後部に設け
た後部振動検知装置である。この２つの振動検知装置３
２ａ・３２ｂの信号は、前記実施例と同様制御装置３１
に送られている。Next, an embodiment of the second means of the present invention is shown in FIG.
It will be described based on. In the present embodiment, a plurality of vibration detection devices are used to perform spin-drying rotation control in accordance with both the unbalance generation position and the unbalance generation amount. That is, 32a is a front vibration detection device provided in the front part of the water tank 20, and 32b is a rear vibration detection device provided in the rear part of the water tank 20. These two vibration detection devices 3
The signals 2a and 32b are the same as those in the above-mentioned embodiment.
Have been sent to.
【００２１】以上の構成で、アンバランスの発生位置と
発生量に応じて脱水回転制御を行っている。前記実施例
で図３を用いて説明したように、衣類のアンバランスが
ドラム２１の前部に存在した場合は、水槽２０は前部の
振動の方が後部の振動よりも大きくなる。逆に、衣類の
アンバランスがドラム２１の後部に存在した場合は、水
槽２０は後部の振動の方が前部の振動よりも大きくな
る。この現象を利用して、水槽２０の前部と後部の２カ
所に振動検知装置を設けることによって、ドラム内のア
ンバランスの位置と量を特定することができる。つまり
脱水行程での共振時以前に、この振動検知装置３２ａ・
３２ｂによって水槽２０の振動を検知するようにすれ
ば、ドラム２１内の衣類の片寄り量すなわちアンバラン
ス量とそのアンバランスの発生位置を絶対的に評価でき
るものである。このアンバランス発生位置が極端にドラ
ム２１の前後方向に片寄った場合、あるいは、アンバラ
ンス量が極端に大きい場合は、前記実施例で説明したバ
ランスサイクルを再び実行することでバランスをよくす
ることができるわけである。With the above construction, the spin-drying rotation control is performed according to the position and amount of unbalance. As described with reference to FIG. 3 in the above-described embodiment, when the unbalance of the clothes exists in the front portion of the drum 21, the vibration of the front portion of the water tank 20 is larger than that of the rear portion. On the contrary, when the unbalance of the clothes exists in the rear portion of the drum 21, the vibration of the rear portion of the water tank 20 is larger than that of the front portion. By utilizing this phenomenon, the position and amount of the imbalance in the drum can be specified by providing the vibration detection devices at two positions, the front part and the rear part of the water tank 20. That is, before the resonance in the dehydration process, the vibration detection device 32a
If the vibration of the water tank 20 is detected by 32b, the amount of deviation of the clothes in the drum 21, that is, the amount of imbalance and the position where the imbalance occurs can be absolutely evaluated. When the unbalance occurrence position is extremely deviated in the front-rear direction of the drum 21, or when the unbalance amount is extremely large, the balance cycle described in the above embodiment is executed again to improve the balance. It can be done.
【００２２】つまり本実施例によれば、どのような衣類
の異常状態においても確実に水槽２０の共振時の振動を
大きく低減でき、また脱水所定回転数に達したときにお
いてもアンバランス量が少なく、床面に伝わる振動を最
小限とすることができる。さらには、共振回転数以上で
所定脱水回転数以下の間に、振動検知装置３２ａ・３２
ｂによる水槽２０の振動検知を行って、異常時に前述の
バランスサイクルを再び行うようにすれば、所定脱水回
転数に達したときにより一層床面に伝わる振動を小さく
することができる。That is, according to this embodiment, the vibration of the water tank 20 at the time of resonance can be greatly reduced in any abnormal state of the clothes, and the unbalance amount is small even when the predetermined number of spins is reached. The vibration transmitted to the floor can be minimized. Furthermore, the vibration detection devices 32a, 32a are provided while the rotational speed is higher than the resonance speed and lower than or equal to the predetermined dehydration speed.
If the vibration of the water tank 20 is detected by b and the above-mentioned balance cycle is performed again in the event of an abnormality, the vibration transmitted to the floor surface can be further reduced when the predetermined dewatering speed is reached.
【００２３】引き続いて本発明の第三の手段の実施例に
ついて、図５に基づいて説明する。本実施例では振動検
知装置３３は、水槽２０の中心軸３４に関して、モータ
２４と対称の位置に設けている。Subsequently, an embodiment of the third means of the present invention will be described with reference to FIG. In this embodiment, the vibration detection device 33 is provided at a position symmetrical to the motor 24 with respect to the central axis 34 of the water tank 20.
【００２４】以下本実施例の作用について説明する。ド
ラム式洗濯機では、モータ２４は水槽２０の下部で、か
つ本体１８のコーナ部に配設している。衣類のアンバラ
ンスがドラム２１に存在した場合、水槽２０は重量の大
きなモータ２４を略公転中心として振動するものであ
る。すなわち、水槽２０のモータ２４近傍部の振動は小
さくなり、水槽２０のモータ２４と対称の位置付近の振
動は相対的に大きくなるものである。つまり、水槽２０
のモータ２４と対称の位置付近の振動は最大値を示すこ
とになるわけである。本実施例では、振動検知装置３３
の設置位置を、この振動の最大値を検知することができ
る、水槽２０の中心軸３４に関して、モータ２４と対称
の位置に設けた構成としているものである。従って、ド
ラム２１内の衣類の片寄り異常すなわちアンバランス異
常を精度良く検知することができるものである。The operation of this embodiment will be described below. In the drum type washing machine, the motor 24 is arranged at the lower portion of the water tub 20 and at the corner portion of the main body 18. When the imbalance of clothes is present in the drum 21, the water tank 20 vibrates with the heavy motor 24 as the center of revolution. That is, the vibration of the water tank 20 near the motor 24 becomes small, and the vibration of the water tank 20 near the position symmetrical to the motor 24 becomes relatively large. That is, the aquarium 20
Therefore, the vibration near the position symmetrical with the motor 24 shows the maximum value. In this embodiment, the vibration detection device 33
Is installed at a position symmetrical to the motor 24 with respect to the central axis 34 of the water tank 20 where the maximum value of this vibration can be detected. Therefore, it is possible to accurately detect the deviation abnormality of the clothes in the drum 21, that is, the imbalance abnormality.
【００２５】以上の理由から、脱水行程の共振時以前に
本振動検知装置３３によって水槽２０の振動を検知し
て、ドラム２１内の衣類の片寄り量の異常すなわちアン
バランス量の異常を精度良く評価して、前述のバランス
サイクルを再び行うことによって、どのような異常状態
においても信頼性良く衣類のバランスを回復することが
できるものである。つまり、水槽２０の共振時の振動を
大きく低減でき、脱水所定回転数に達したときにおいて
もアンバランス量が少なく、床面に伝わる振動を最小限
とすることができる。また、共振回転数以上で所定脱水
回転数以下の間に本振動検知装置３３によって水槽２０
の振動を検知実行して、アンバランス量が大きいときに
前述のバランスサイクルを再び実行すれば、所定脱水回
転数に達したときにより一層床面に伝わる振動を小さく
することができるものである。For the above reasons, the vibration of the water tank 20 is detected by the vibration detecting device 33 before the resonance of the dehydration process, and the abnormality of the deviation amount of the clothes in the drum 21, that is, the abnormality of the unbalance amount is accurately measured. By evaluating and performing the above-mentioned balance cycle again, the balance of the clothes can be reliably restored in any abnormal state. That is, the vibration of the water tank 20 at the time of resonance can be greatly reduced, the amount of unbalance is small even when the predetermined number of rotations of dehydration is reached, and the vibration transmitted to the floor surface can be minimized. In addition, the vibration detecting device 33 causes the water tank 20 to rotate while the resonance speed is higher than the resonance speed and lower than the predetermined dehydration speed.
The vibration transmitted to the floor can be further reduced when the predetermined dewatering rotation number is reached by executing the above-mentioned balance cycle again when the unbalance amount is large.
【００２６】[0026]
【発明の効果】本発明の第一の手段は、外周に通水孔を
設けたドラムと、ドラムを内包し洗濯水を溜める水槽
と、前記ドラムを回転駆動するモータと、前記水槽を収
容する本体と、前記水槽を本体から吊すバネ体と、水槽
と本体間に取り付けて水槽の振動を抑制する防振ダンパ
ーと、前記水槽に設けた振動を検知する振動検知装置
と、この振動検知装置の出力に応じ脱水回転制御を行う
制御装置とを備え、前記振動検知装置はドラム内の前部
あるいは後部に位置するアンバランスに対し、それぞれ
の水槽振動が略同一となる位置に設けた構成として、ド
ラム内のアンバランスの位置に関わらずアンバランス量
によって脱水回転制御が可能となり、脱水工程時の共振
振動あるいは床面に伝わる振動を最小限とできるドラム
式洗濯機を提供できるものである。The first means of the present invention accommodates the drum having the water passage hole on the outer periphery, the water tank for accommodating the drum and storing the washing water, the motor for rotationally driving the drum, and the water tank. A main body, a spring body that suspends the water tank from the main body, a vibration damping damper that is installed between the water tank and the main body to suppress vibration of the water tank, a vibration detection device that detects vibration provided in the water tank, and a vibration detection device of this vibration detection device. With a control device for performing dewatering rotation control according to the output, the vibration detection device, as to the unbalance located in the front portion or the rear portion in the drum, as a configuration provided in each water tank vibration is substantially the same, It is possible to provide a drum type washing machine that can control the spin-drying rotation depending on the amount of the unbalance regardless of the position of the unbalance in the drum, and can minimize the resonance vibration during the spin-drying process or the vibration transmitted to the floor surface. Than it is.
【００２７】本発明の第二の手段は、外周に通水孔を設
けたドラムと、ドラムを内包し洗濯水を溜める水槽と、
前記ドラムを回転駆動するモータと、前記水槽を収容す
る本体と、前記水槽を本体から吊すバネ体と、水槽と本
体間に取り付けて水槽の振動を抑制する防振ダンパー
と、前記水槽の前部と後部に複数個設けた振動を検知す
る振動検知装置と、この振動検知装置の出力に応じ脱水
回転制御を行う制御装置とを備え、前記複数個の振動検
知装置の出力に応じて脱水回転制御を行う構成として、
ドラム内のアンバランスの位置およびアンバランス量に
応じた脱水回転制御が可能で、脱水工程時の共振振動あ
るいは床面に伝わる振動を最小限とできるドラム式洗濯
機を提供できるものである。A second means of the present invention is a drum having a water passage hole on its outer periphery, a water tank containing the drum and storing washing water,
A motor that rotationally drives the drum, a main body that houses the water tank, a spring body that suspends the water tank from the main body, a vibration damping damper that is installed between the water tanks and suppresses vibration of the water tank, and a front portion of the water tank. And a vibration detection device provided in the rear part for detecting vibrations, and a control device for performing dehydration rotation control according to the output of the vibration detection device, and the dehydration rotation control according to outputs of the plurality of vibration detection devices. As a configuration that
(EN) It is possible to provide a drum-type washing machine that can control the spin-drying rotation according to the position and the amount of the unbalance in the drum, and can minimize the resonance vibration during the spin-drying process or the vibration transmitted to the floor surface.
【００２８】また本発明の第三の手段は、外周に通水孔
を設けたドラムと、ドラムを内包し洗濯水を溜める水槽
と、前記ドラムを回転駆動するモータと、前記水槽を収
容する本体と、前記水槽を本体から吊すバネ体と、水槽
と本体間に取り付けて水槽の振動を抑制する防振ダンパ
ーと、前記水槽の振動を検知する振動検知装置と、この
振動検知装置の出力に応じ脱水回転制御を行う制御装置
とを備え、前記振動検知装置は水槽の中心軸に関してモ
ータと対称となる位置に設け、振動検知装置の出力に応
じて脱水回転制御を行う構成として、ドラム内のアンバ
ランスの量に関わらず異常振動時に脱水回転制御が可能
で、脱水工程時の共振振動あるいは床面に伝わる振動を
最小限とできるドラム式洗濯機を提供できるものであ
る。A third means of the present invention is a drum having a water passage hole on the outer periphery thereof, a water tank containing the drum for storing washing water, a motor for rotationally driving the drum, and a main body for accommodating the water tank. A spring body that suspends the water tank from the main body, a vibration damper that is installed between the water tank and the main body to suppress vibration of the water tank, a vibration detection device that detects the vibration of the water tank, and an output of the vibration detection device. The vibration detection device is provided at a position symmetrical to the motor with respect to the central axis of the water tank, and the vibration detection device controls the dehydration rotation according to the output of the vibration detection device. It is possible to provide a drum-type washing machine that can control spin-drying rotation during abnormal vibration regardless of the amount of balance, and can minimize resonance vibration during the spin-drying process or vibration transmitted to the floor surface.
【図１】本発明の第一の手段の実施例であるドラム式洗
濯機の側面断面図FIG. 1 is a side sectional view of a drum type washing machine which is an embodiment of the first means of the present invention.
【図２】同ドラム式洗濯機の正面断面図FIG. 2 is a front sectional view of the drum type washing machine.
【図３】同要部の平面断面図FIG. 3 is a plan cross-sectional view of the main part.
【図４】同第二の手段の実施例であるドラム式洗濯機の
要部の側面断面図FIG. 4 is a side sectional view of a main part of a drum type washing machine which is an embodiment of the second means.
【図５】同第三の手段の実施例であるドラム式洗濯機の
要部の正面断面図FIG. 5 is a front sectional view of a main part of a drum type washing machine which is an embodiment of the third means.
【図６】従来のドラム式洗濯機の側面断面図FIG. 6 is a side sectional view of a conventional drum type washing machine.
【図７】同防振ダンパーの側面断面図FIG. 7 is a side sectional view of the vibration damper.
１８ 本体 ２０ 水槽 ２１ ドラム ２７ 防振ダンパー ３０ 振動検知装置 ３１ 制御装置 ３２ａ 振動検知装置 ３２ｂ 振動検知装置 ３３ 振動検知装置 18 main body 20 water tank 21 drum 27 anti-vibration damper 30 vibration detection device 31 control device 32a vibration detection device 32b vibration detection device 33 vibration detection device
フロントページの続き (72)発明者 吉田 勝昭 大阪府門真市大字門真1006番地 松下電器 産業株式会社内Front page continuation (72) Inventor Katsuaki Yoshida 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (3)
を内包し洗濯水を溜める水槽と、前記ドラムを回転駆動
するモータと、前記水槽を収容する本体と、前記水槽を
本体から吊すバネ体と、水槽と本体間に取り付けて水槽
の振動を抑制する防振ダンパーと、前記水槽に設けた振
動を検知する振動検知装置と、この振動検知装置の出力
に応じ脱水回転制御を行う制御装置とを備え、前記振動
検知装置はドラム内の前部あるいは後部に位置するアン
バランスに対し、それぞれの水槽振動が略同一となる位
置に設けたドラム式洗濯機。1. A drum having water passage holes on its outer circumference, a water tank for accommodating the washing water and containing the drum, a motor for rotationally driving the drum, a main body for accommodating the water tank, and the water tank hanging from the main body. A spring body, an anti-vibration damper mounted between the water tank and the main body to suppress vibration of the water tank, a vibration detection device for detecting vibration provided in the water tank, and a control for performing dehydration rotation control according to the output of the vibration detection device. A drum type washing machine provided with a device, wherein the vibration detecting device is provided at a position where vibrations of respective water tanks are substantially the same with respect to an unbalance located at a front portion or a rear portion in the drum.
を内包し洗濯水を溜める水槽と、前記ドラムを回転駆動
するモータと、前記水槽を収容する本体と、前記水槽を
本体から吊すバネ体と、水槽と本体間に取り付けて水槽
の振動を抑制する防振ダンパーと、前記水槽の前部と後
部に複数個設けた振動を検知する振動検知装置と、この
振動検知装置の出力に応じ脱水回転制御を行う制御装置
とを備え、前記複数個の振動検知装置の出力に応じて脱
水回転制御を行うドラム式洗濯機。2. A drum having a water passage hole on the outer periphery thereof, a water tank containing the drum for storing washing water, a motor for rotationally driving the drum, a main body for accommodating the water tank, and the water tank hanging from the main body. A spring body, an anti-vibration damper installed between the water tank and the main body to suppress vibration of the water tank, a vibration detection device for detecting vibrations provided in the front and rear portions of the water tank, and an output of the vibration detection device. And a control device for performing spin-drying rotation control according to the drum-type washing machine.
を内包し洗濯水を溜める水槽と、前記ドラムを回転駆動
するモータと、前記水槽を収容する本体と、前記水槽を
本体から吊すバネ体と、水槽と本体間に取り付けて水槽
の振動を抑制する防振ダンパーと、前記水槽の振動を検
知する振動検知装置と、この振動検知装置の出力に応じ
脱水回転制御を行う制御装置とを備え、前記振動検知装
置は水槽の中心軸に関してモータと対称となる位置に設
け、振動検知装置の出力に応じて脱水回転制御を行うド
ラム式洗濯機。3. A drum having water passage holes on its outer circumference, a water tank for enclosing the drum to store washing water, a motor for driving the drum to rotate, a main body for accommodating the water tank, and the water tank hanging from the main body. A spring body, an anti-vibration damper attached between the water tank and the main body to suppress vibration of the water tank, a vibration detection device for detecting vibration of the water tank, and a control device for performing dehydration rotation control according to the output of the vibration detection device. The drum type washing machine, wherein the vibration detecting device is provided at a position symmetrical to the motor with respect to the central axis of the water tub, and the dehydration rotation control is performed according to the output of the vibration detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01983593A JP3865791B2 (en) | 1993-02-08 | 1993-02-08 | Drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01983593A JP3865791B2 (en) | 1993-02-08 | 1993-02-08 | Drum washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06233890A true JPH06233890A (en) | 1994-08-23 |
| JP3865791B2 JP3865791B2 (en) | 2007-01-10 |
Family
ID=12010340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01983593A Expired - Fee Related JP3865791B2 (en) | 1993-02-08 | 1993-02-08 | Drum washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3865791B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1154064A2 (en) † | 2000-05-09 | 2001-11-14 | Whirpool Corporation | Device to limit the imbalance of a washing unit of a clothes washer |
| JP2006311884A (en) * | 2005-05-06 | 2006-11-16 | Sharp Corp | Method of detecting position of imbalance in drum type washing machine and drum type dewaterer capable of detecting position of imbalance |
| EP1167609B2 (en) † | 2000-06-30 | 2007-09-12 | Whirlpool Corporation | Method for detecting and controlling the dynamic unbalance in a drum of a washing machine and washing machine that uses such method |
| KR100905832B1 (en) * | 2006-12-08 | 2009-07-02 | 파나소닉 주식회사 | Washing machine |
| KR100984392B1 (en) * | 2007-07-30 | 2010-09-29 | 가부시끼가이샤 도시바 | Drum type washing machine |
| WO2012114751A1 (en) | 2011-02-23 | 2012-08-30 | パナソニック株式会社 | Drum-type washing machine |
| KR101246381B1 (en) * | 2007-12-27 | 2013-04-01 | 주식회사 대우일렉트로닉스 | Apparatus for diminishing vibration of drum type washing machine |
| JP2013153994A (en) * | 2012-01-31 | 2013-08-15 | Hitachi Appliances Inc | Washer |
| KR101298004B1 (en) * | 2007-12-27 | 2013-08-26 | 동부대우전자 주식회사 | Apparatus for diminishing vibration of drum type washing machine |
| JP2017074188A (en) * | 2015-10-14 | 2017-04-20 | パナソニックＩｐマネジメント株式会社 | Drum type washing machine |
| CN113227693A (en) * | 2019-11-18 | 2021-08-06 | 株式会社Lg化学 | Pressurized centrifugal dehydrator |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4983579B2 (en) * | 2007-12-03 | 2012-07-25 | パナソニック株式会社 | Drum washing machine |
| JP5612066B2 (en) * | 2012-12-28 | 2014-10-22 | 株式会社東芝 | Washing machine |
-
1993
- 1993-02-08 JP JP01983593A patent/JP3865791B2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1154064A2 (en) † | 2000-05-09 | 2001-11-14 | Whirpool Corporation | Device to limit the imbalance of a washing unit of a clothes washer |
| EP1154064B2 (en) † | 2000-05-09 | 2010-06-09 | Whirlpool Corporation | Method for limiting the imbalance of a washing unit of a clothes washer |
| EP1167609B2 (en) † | 2000-06-30 | 2007-09-12 | Whirlpool Corporation | Method for detecting and controlling the dynamic unbalance in a drum of a washing machine and washing machine that uses such method |
| JP4580813B2 (en) * | 2005-05-06 | 2010-11-17 | シャープ株式会社 | Method for detecting unbalance position in drum type washing machine and drum type dehydrator capable of detecting unbalance position |
| JP2006311884A (en) * | 2005-05-06 | 2006-11-16 | Sharp Corp | Method of detecting position of imbalance in drum type washing machine and drum type dewaterer capable of detecting position of imbalance |
| KR100905832B1 (en) * | 2006-12-08 | 2009-07-02 | 파나소닉 주식회사 | Washing machine |
| KR100984392B1 (en) * | 2007-07-30 | 2010-09-29 | 가부시끼가이샤 도시바 | Drum type washing machine |
| KR101246381B1 (en) * | 2007-12-27 | 2013-04-01 | 주식회사 대우일렉트로닉스 | Apparatus for diminishing vibration of drum type washing machine |
| KR101298004B1 (en) * | 2007-12-27 | 2013-08-26 | 동부대우전자 주식회사 | Apparatus for diminishing vibration of drum type washing machine |
| WO2012114751A1 (en) | 2011-02-23 | 2012-08-30 | パナソニック株式会社 | Drum-type washing machine |
| CN102803597A (en) * | 2011-02-23 | 2012-11-28 | 松下电器产业株式会社 | Drum-type washing machine |
| JP2013153994A (en) * | 2012-01-31 | 2013-08-15 | Hitachi Appliances Inc | Washer |
| JP2017074188A (en) * | 2015-10-14 | 2017-04-20 | パナソニックＩｐマネジメント株式会社 | Drum type washing machine |
| CN113227693A (en) * | 2019-11-18 | 2021-08-06 | 株式会社Lg化学 | Pressurized centrifugal dehydrator |
| CN113227693B (en) * | 2019-11-18 | 2023-03-17 | 株式会社Lg化学 | Pressurized centrifugal dehydrator |
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