JPH05253389A - Automatic washing machine - Google Patents

Automatic washing machine

Info

Publication number
JPH05253389A
JPH05253389A JP5780792A JP5780792A JPH05253389A JP H05253389 A JPH05253389 A JP H05253389A JP 5780792 A JP5780792 A JP 5780792A JP 5780792 A JP5780792 A JP 5780792A JP H05253389 A JPH05253389 A JP H05253389A
Authority
JP
Japan
Prior art keywords
spring
suspension
support plate
washing machine
spring support
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
Application number
JP5780792A
Other languages
Japanese (ja)
Other versions
JP3120541B2 (en
Inventor
Toshinari Matsumoto
俊成 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP04057807A priority Critical patent/JP3120541B2/en
Publication of JPH05253389A publication Critical patent/JPH05253389A/en
Application granted granted Critical
Publication of JP3120541B2 publication Critical patent/JP3120541B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To provide an automatic washing machine which can remarkably reduce the vibration on starting spin-drying and obtain smooth start. CONSTITUTION:Suspensions 18a, 18c at the four corners, elastically supporting the outer tank 13 positioned at the outside of a washing tank from the washing machine body 19 are provided with suspension rods 20, spring support plates 23 fitted at the lower edge of this suspension rods 20, spring presses 21 inserted in the suspension rods to cover the spring support plate 23, compression springs 22 interposed between the spring support plate 23 and the spring press 21. One of a couple of suspensions 18a, 18c diagonally positioned forms an air chamber 24 at the bottom of the spring press 21. And the air chamber 24 is connected to the air chamber 31 at the upper part of the spring press 21 of the other suspension through hollow paths 28, 30 formed at the suspension rods 20.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は防振構成に特徴を有する
家庭用の自動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 household automatic washing machine having a vibration-proof construction.

【0002】[0002]

【従来の技術】従来、この種の自動洗濯機は図8に示す
ような構造になっている。すなわち、脱水時の水を受け
るための外槽1の下部に減速機2が固着されており、こ
の減速機2は外槽1の下部に固着されたモータ3とベル
トで連結されている。減速機2の駆動軸は二重構造にな
っており、外側の軸には、外槽1内部に位置し、脱水槽
を兼ねた洗濯槽4が固定されている。内側の軸には、洗
濯槽4内部に位置した撹拌翼5が固定されている。外槽
1は、サスペンション6を介して洗濯機本体7の四隅か
ら防振支持されている。サスペンション6は、図9に示
すような構成となっている。すなわち、吊り棒8と、円
筒状のバネ抑え9と、つるまきバネ10と、可撓性のバ
ネ支持板11と、バネ支持板11に装着され変態温度以
上の高温になると縮径してバネ支持板11の外周を縮小
させて、前記バネ抑え9との摩擦が小さくなるように機
能する形状記憶合金リング12とにより構成されてい
る。前記バネ支持板11は、バネ抑え9の下端内周に摺
動可能に嵌合している。またバネ抑え9は前記外槽1に
固定されている。
2. Description of the Related Art Conventionally, an automatic washing machine of this type has a structure as shown in FIG. That is, the speed reducer 2 is fixed to the lower part of the outer tub 1 for receiving water at the time of dehydration, and the speed reducer 2 is connected to the motor 3 fixed to the lower part of the outer tub 1 by a belt. The drive shaft of the speed reducer 2 has a double structure, and a washing tub 4 located inside the outer tub 1 and also serving as a dehydration tub is fixed to the outer shaft. A stirring blade 5 located inside the washing tub 4 is fixed to the inner shaft. The outer tub 1 is vibration-isolated and supported from four corners of the washing machine body 7 via the suspension 6. The suspension 6 has a structure as shown in FIG. That is, the suspension rod 8, the cylindrical spring retainer 9, the helical spring 10, the flexible spring support plate 11, and the spring support plate 11 are attached to the spring support plate 11 and contracted when the temperature becomes higher than the transformation temperature. The shape memory alloy ring 12 functions to reduce the outer circumference of the support plate 11 and reduce the friction with the spring retainer 9. The spring support plate 11 is slidably fitted to the inner circumference of the lower end of the spring retainer 9. The spring retainer 9 is fixed to the outer tub 1.

【0003】以上のような構成で、給水・洗濯・排水・
遠心脱水を自動的に行うものであが、自動洗濯機におい
ては、脱水槽4を回転させ遠心脱水する際に、衣類Aの
片寄りのため生じるアンバランスが原因で大きな振動が
発生する。特に起動時、共振点通過時にこの振動の振幅
は最大となる。この共振の振動を抑えるため、従来例に
よる構成のものは、バネ抑え9とバネ支持板11とを摩
擦摺動させる構成として振動を減衰させている。この摩
擦減衰量を大きくすると共振点での振幅は小さくなる
が、振動は洗濯機本体7に伝わりやすくなり、振動音や
摺動音等の騒音は大きくなる。逆に摩擦減衰量が小さい
と騒音は小さくなるが、共振点での振幅が大きくなる。
そこで、脱水行程に入って脱水槽4が回転を始めて共振
点を通過するまでは、バネ抑え9とバネ支持板11との
摩擦によって充分な減衰量を得、次に回転数が共振点を
通過した後は形状記憶合金リング12を作用させてこの
摩擦力が小さくなるようにしている。つまり、形状記憶
合金リング12が摩擦熱を受けて所定の温度に達する
と、記憶された形状に変形し、すなわちリング径が小さ
くなって、結果として摩擦力を小さくしているものであ
る。こうして、騒音を小さく抑えるようにしている。
With the above structure, water supply, washing, drainage,
Although centrifugal dewatering is automatically performed, in an automatic washing machine, when the dewatering tub 4 is rotated and centrifugal dewatering is performed, a large vibration is generated due to an imbalance caused by the deviation of the clothes A. In particular, the amplitude of this vibration becomes maximum at the time of starting and when passing through the resonance point. In order to suppress this resonance vibration, the conventional structure has a structure in which the spring retainer 9 and the spring support plate 11 are frictionally slid to attenuate the vibration. When the friction damping amount is increased, the amplitude at the resonance point is decreased, but the vibration is easily transmitted to the washing machine body 7, and noise such as vibration noise and sliding noise is increased. On the contrary, if the frictional damping amount is small, the noise becomes small, but the amplitude at the resonance point becomes large.
Therefore, until the dehydration process starts to rotate and the dehydration tank 4 passes the resonance point, a sufficient amount of damping is obtained by the friction between the spring retainer 9 and the spring support plate 11, and then the rotation speed passes the resonance point. After that, the shape memory alloy ring 12 is made to act to reduce the frictional force. That is, when the shape memory alloy ring 12 receives frictional heat and reaches a predetermined temperature, the shape memory alloy ring 12 is deformed into a memorized shape, that is, the ring diameter is reduced, and as a result, the frictional force is reduced. In this way, noise is kept low.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、前記従
来の構成のものでは、形状記憶合金リング12が動作す
るまでは摩擦力が大きく、従って摺動音等による騒音も
大きいものである。また形状記憶合金リング12は動作
に摩擦熱を利用しているため、この動作のタイミングが
不安定なものである。
However, in the above-mentioned conventional structure, the frictional force is large until the shape memory alloy ring 12 operates, and therefore the noise due to the sliding noise is large. Further, since the shape memory alloy ring 12 uses frictional heat for its operation, the timing of this operation is unstable.

【0005】そこで、本発明は従来の課題を解決するも
のであり、脱水行程での振動を小さくした自動洗濯機を
得ることを第一の目的とするものである。また脱水開始
時のサスペンションのダンパ力を大きくし、外槽の振れ
を抑えてスムーズな起動ができ、騒音を抑えた自動洗濯
機を得ることを第二の目的とするものである。
Therefore, the present invention solves the conventional problems, and it is a first object of the present invention to obtain an automatic washing machine with reduced vibration during the dehydration process. A second object of the present invention is to obtain an automatic washing machine in which the damping force of the suspension at the start of dewatering is increased, the swinging of the outer tub is suppressed, smooth startup is possible, and noise is suppressed.

【0006】[0006]

【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、脱水槽を兼ねた洗濯槽の外
側に位置して脱水時の水を受ける外槽と、この外槽を洗
濯機本体から弾性支持する四隅のサスペンションとを備
え、前記サスペンションは、吊り棒と、この吊り棒の下
端に取付けたバネ支持板と、前記吊り棒に挿通されバネ
支持板を覆うバネ抑えと、バネ支持板とバネ抑えとの間
に介装した圧縮バネとを有し、対角に位置する一対のサ
スペンションのうちの一つはバネ抑えの底部に空気室を
形成し、この空気室を吊り棒に形成した中空路を介して
他のサスペンションのバネ抑えの上部の空気室と連通さ
せた自動洗濯機としたものである。
[Means for Solving the Problems] A first means of the present invention for achieving the first object is to provide an outer tub located outside a washing tub which also serves as a dehydrating tub and for receiving water at the time of dehydration. The suspension includes four suspensions that elastically support the outer tub from the main body of the washing machine. The suspension includes a suspension rod, a spring support plate attached to a lower end of the suspension rod, and a spring support plate that is inserted into the suspension rod and covers the spring support plate. It has a spring retainer and a compression spring interposed between the spring support plate and the spring retainer, and one of a pair of suspensions positioned diagonally forms an air chamber at the bottom of the spring retainer. This is an automatic washing machine in which an air chamber communicates with an upper air chamber of a spring restraint of another suspension through a hollow passage formed in a hanging rod.

【0007】第二の目的を達成するための本発明の第二
の手段は、脱水槽を兼ねた洗濯槽の外側に位置して脱水
時の水を受ける外槽と、この外槽を洗濯機本体から弾性
支持する四隅のサスペンションとを備え、前記サスペン
ションは、吊り棒と、この吊り棒の下端に取付けたバネ
支持板と、前記吊り棒に挿通されバネ支持板を覆うバネ
抑えと、バネ支持板とバネ抑えとの間に介装した圧縮バ
ネと、バネ支持板の上下に形成した空気室とを有し、前
記吊り棒には上および下の空気室と連通する一組の中空
路を設け、この中空路を介して対角に位置する一対のサ
スペンションの空気室を上下逆に連通させた自動洗濯機
としたものである。
The second means of the present invention for achieving the second object is to provide an outer tub located outside the washing tub which also serves as a dehydrating tub and receiving water for dehydration, and a washing machine for the outer tub. The suspension includes four suspensions elastically supported from the main body, and the suspension includes a suspension rod, a spring support plate attached to a lower end of the suspension rod, a spring retainer inserted through the suspension rod to cover the spring support plate, and a spring support. The suspension rod has a compression spring interposed between the plate and the spring retainer, and air chambers formed above and below the spring support plate.The suspension rod has a pair of hollow passages communicating with the upper and lower air chambers. The automatic washing machine is provided in which the air chambers of a pair of suspensions diagonally located through the hollow passage are connected upside down.

【0008】[0008]

【作用】本発明の第一の手段は以下のように作用する。
脱水行程に入って脱水槽が回転を始めて共振点を通過す
るまでは、バネ支持板の摺動量が大きく、バネ抑え内の
空気の流れが対角に位置するサスペンションのバネ支持
板の摺動を抑え、結果としてダンパ力が作用し、共振点
の振動を小さくしている。また定常時においては、バネ
支持板の摺動量は小さく、バネ抑え内の空気の流れによ
るサスペンションのバネ支持板の摺動を抑える力も小さ
くなるので、ダンパ力が小さくなって外槽の振動が本体
に伝わりにくくなり騒音が小さくなる。
The first means of the present invention operates as follows.
The amount of sliding of the spring support plate is large until the dehydration tank starts rotating and passes the resonance point in the dehydration process, and the spring support plate of the suspension in which the air flow in the spring retainer is diagonally positioned slides. As a result, the damper force acts to reduce the vibration at the resonance point. In the steady state, the amount of sliding of the spring support plate is small and the force that suppresses the sliding of the spring support plate of the suspension due to the air flow inside the spring retainer is also reduced, so the damper force is reduced and the vibration of the outer tank is reduced. It becomes difficult to be transmitted to and noise is reduced.

【0009】また本発明の第二の手段は、吊り棒に設け
た一組の中空路を介して対角に位置する一対のサスペン
ションの空気室を上下逆に連通させてダンパ力を大きく
し、サスペンションのバネ支持板の摺動をお互いに抑制
し合い、起動時にはダンパ力を強くし、定常時において
はダンパ力が小さくすることができ、外槽の振動が本体
に伝わりにくくなり騒音が小さくなる。
The second means of the present invention is to increase the damper force by vertically connecting the air chambers of a pair of suspensions diagonally located through a pair of hollow passages provided in the suspension rod. The suspension's spring support plates can be prevented from sliding against each other, the damper force can be increased at startup, and the damper force can be reduced at steady time, making it difficult for the vibration of the outer tub to be transmitted to the main body and reducing noise. ..

【0010】[0010]

【実施例】以下、本発明の第一の手段の実施例の構成に
ついて説明する。図1・図2は本実施例の全体構成を示
している。脱水槽を兼ねた洗濯槽16の外側に位置し
て、脱水時の水を受けるための外槽13が設けられてい
る。外槽13の下部には減速機14が固着されている。
この減速機14は、外槽13の下部に固着されたモータ
15とベルトで連結されている。減速機14の駆動軸は
二重構造になっており、外側の軸には、外槽13内部に
位置し洗濯槽16が固定されている。内側の軸には、洗
濯槽16内部に位置した撹拌翼17が固定されている。
外槽13は、洗濯機本体19の四隅に設けたサスペンシ
ョン18a・18b・18c・18dによって防振支持
されている。サスペンション18aとサスペンション1
8c、サスペンション18bとサスペンション18dと
は、互いに洗濯機本体19の対角に位置した関係となっ
ている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the first embodiment of the present invention will be described below. 1 and 2 show the overall configuration of this embodiment. An outer tub 13 for receiving water at the time of dehydration is provided outside the washing tub 16 which also serves as a dehydration tub. A speed reducer 14 is fixed to the lower portion of the outer tub 13.
The speed reducer 14 is connected by a belt to a motor 15 fixed to the lower portion of the outer tub 13. The drive shaft of the speed reducer 14 has a double structure, and a washing tub 16 is fixed inside the outer tub 13 on the outer shaft. A stirring blade 17 located inside the washing tub 16 is fixed to the inner shaft.
The outer tub 13 is vibration-supported by suspensions 18a, 18b, 18c, and 18d provided at the four corners of the washing machine body 19. Suspension 18a and suspension 1
8c, the suspension 18b, and the suspension 18d are in a relationship of being diagonally located on the main body 19 of the washing machine.

【0011】サスペンション18a・18bは、図3に
示すような構成となっている。20は外槽13を支持し
ている吊り棒で、下端にはバネ支持板23を取付けてい
る。21は吊り棒20に挿通されバネ支持板23を覆う
円筒状のバネ抑え、22はバネ抑え21とバネ支持板2
3との間に介装した圧縮バネ、25はバネ抑え21の底
部に空気室24を形成するように設けた底板、26はバ
ネ支持板23の上部とバネ抑え21で構成した空気室、
27は空気室26に設けた排気口、28は空気室24と
連通した中空路で、吊り棒20に形成している。そして
バネ抑え21は、図ではその内径がテーパとなっている
が、先端部と奥行き部の内径DとD1の関係をD=D1
なるように成型してストレートにし、バネ支持板23と
の摺動摩擦力を小さくするようにすることが望ましい。
The suspensions 18a and 18b are constructed as shown in FIG. Reference numeral 20 is a suspension rod that supports the outer tank 13, and a spring support plate 23 is attached to the lower end thereof. Reference numeral 21 denotes a cylindrical spring retainer that is inserted into the suspension rod 20 and covers the spring support plate 23. Reference numeral 22 denotes the spring retainer 21 and the spring support plate 2.
3, a compression spring interposed between the spring retainer 21, and 25, a bottom plate provided so as to form the air chamber 24 at the bottom of the spring retainer 21, and 26, an air chamber formed by the upper portion of the spring support plate 23 and the spring retainer 21,
27 is an exhaust port provided in the air chamber 26, and 28 is a hollow passage communicating with the air chamber 24, which is formed in the hanging rod 20. Although the spring retainer 21 has a tapered inner diameter in the figure, it is straightened by molding so that the relationship between the inner diameters D and D 1 at the tip and the depth is D = D 1. It is desirable to reduce the sliding frictional force with.

【0012】またサスペンション18cと18dは、図
4に示すような構成となっている。吊り棒29は、バネ
支持板23の上部位置に開口部34を有しており、バネ
支持板23とバネ抑え21とで構成される空気室31と
連通した中空路30を有している。
The suspensions 18c and 18d are constructed as shown in FIG. The suspension rod 29 has an opening 34 at an upper position of the spring support plate 23, and has a hollow passage 30 communicating with an air chamber 31 constituted by the spring support plate 23 and the spring retainer 21.

【0013】そして、図5に示しているように、本実施
例では対角に位置するサスペンション18aとサスペン
ション18cとはチューブ32で接続している。同様に
サスペンション18bとサスペンション18dともチユ
ーブで接続しているものである。すなわち、対角に位置
する吊り棒20、29の中空路28、30の上端部がチ
ューブで接続され、空気室24が他のサスペンションの
バネ抑え23の上部の空気室31と連通しているもので
ある。チューブ32は図1に示しているように洗濯機本
体19の上部内壁に設けたチューブ支持部33に沿って
配管されている。
Then, as shown in FIG. 5, in this embodiment, the tubes 18 connect the suspensions 18a and 18c diagonally located. Similarly, the suspension 18b and the suspension 18d are also connected in a tube. That is, the upper ends of the hollow passages 28 and 30 of the hanging rods 20 and 29 located diagonally are connected by a tube, and the air chamber 24 communicates with the air chamber 31 above the spring retainer 23 of another suspension. Is. As shown in FIG. 1, the tube 32 is piped along a tube support portion 33 provided on the upper inner wall of the washing machine body 19.

【0014】以下本実施例の動作を説明する。洗濯工程
中に生じた衣類Aの分布の片寄によるアンバランスによ
って、遠心脱水行程においては、外槽13と洗濯槽16
は激しく振動する。特に脱水起動時に、共振点を通過す
る際には、対角に位置したサスペンション18aとサス
ペンション18cならびにサスペンション18bとサス
ペンション18dのバネ抑え21は、上下振動の振幅が
最大になる。従ってこのときバネ支持板23は大きく摺
動する。例えばこのときサスペンション18cを構成す
るバネ支持板23が摺動したとすると、空気室31の空
間が小さくなって内部の空気は開口部34から押し出さ
れる。この空気は、中空路30・チューブ32・中空路
28を通って、サスペンション18aを構成する空気室
24に流れ込む。この結果、サスペンション18aを構
成するバネ支持板23はその摺動量が規制されることに
なる。こうして結果としてダンパ力が作用し、外槽13
の振動は抑制される。この時、空気室26内の空気は排
気口27より外部に排気され、ダンパ力の弱まりを防止
している。なお脱水が進んで定常回転になると、バネ支
持板23の摺動量も小さくなる。このため結果としてダ
ンパ力が弱くなって、外槽13の振動が洗濯機本体19
に伝わりにくくなり騒音が低減される。
The operation of this embodiment will be described below. In the centrifugal dehydration process, the outer tub 13 and the washing tub 16 are unbalanced due to the unbalanced distribution of the clothes A generated during the washing process.
Vibrates violently. In particular, when passing through the resonance point at the time of starting dehydration, the spring restraints 21 of the suspensions 18a and 18c and the suspensions 18b and 18d positioned diagonally have the maximum vertical vibration amplitude. Therefore, at this time, the spring support plate 23 slides largely. For example, if the spring support plate 23 forming the suspension 18c slides at this time, the space of the air chamber 31 becomes smaller and the air inside is pushed out from the opening 34. The air flows through the hollow passage 30, the tube 32, and the hollow passage 28 into the air chamber 24 that constitutes the suspension 18a. As a result, the sliding amount of the spring support plate 23 forming the suspension 18a is restricted. In this way, the damper force acts as a result, and the outer tank 13
Vibration is suppressed. At this time, the air in the air chamber 26 is exhausted to the outside through the exhaust port 27 to prevent the damping force from weakening. Note that when dehydration progresses and becomes steady rotation, the sliding amount of the spring support plate 23 also decreases. As a result, the damper force is weakened, and the vibration of the outer tub 13 causes
It becomes difficult to be transmitted to and noise is reduced.

【0015】このように本実施例の自動洗濯機によれ
ば、バネ抑え21とバネ支持板23の摩擦を小さくして
いるため、脱水行程での摩擦音による騒音が低減でき
る。また摩擦が小さいので、バネ抑え21とバネ支持板
23の耐久性が向上する。更に脱水起動時の振幅が大き
い場合には、制動力が大きくなるようにして振動を小さ
くし、定常時には制動力が小さくなるようにしているた
め、騒音を低減することができる。さらに、各中空路2
8、30の接続に使用したチューブ32は、振動の少な
いサスペンション上部から洗濯機本体19の上部内壁に
設けたチューブ支持部33に沿って配管しているため、
振動による騒音の増大も少ない。
As described above, according to the automatic washing machine of this embodiment, since the friction between the spring retainer 21 and the spring support plate 23 is reduced, the noise due to the friction noise during the dehydration process can be reduced. Further, since the friction is small, the durability of the spring retainer 21 and the spring support plate 23 is improved. Further, when the amplitude at the dehydration start is large, the vibration is reduced by increasing the braking force, and the braking force is reduced in the steady state, so that the noise can be reduced. Furthermore, each hollow passage 2
Since the tube 32 used for connecting 8 and 30 is arranged along the tube support portion 33 provided on the inner wall of the upper portion of the washing machine body 19 from the suspension upper portion with less vibration,
There is little increase in noise due to vibration.

【0016】次に本発明の第二の手段の実施例を図6・
図7にもとづいて説明する。四隅のサスペンション34
a、34c(図示していないが、他に一組)は以下のよ
うな構成となっている。各吊り棒35は、バネ支持板2
3の上に形成した空気室24と連通した中空路37と、
バネ支持板23の下に形成した空気室36と開口部41
によって連通した中空路38とを一組有している。
Next, an embodiment of the second means of the present invention is shown in FIG.
Description will be made based on FIG. 7. Suspension 34 at the four corners
a and 34c (not shown, but one set other than the above) has the following configuration. Each suspension bar 35 has a spring support plate 2
3, a hollow passage 37 that communicates with the air chamber 24 formed above 3,
Air chamber 36 and opening 41 formed under the spring support plate 23
And a hollow path 38 communicating with each other.

【0017】そして、図6に示すように、中空路37、
38を介して、対角に位置する一対のサスペンションの
空気室を上下逆に連通させている。すなわち、サスペン
ション34aの中空路37とサスペンション34cの中
空路38はチューブ39で、またサスペンション34a
の中空路38とサスペンション34cの中空路37はチ
ューブ40で接続している。なお、他の組のサスペンシ
ョンも同様の接続となっている。その他の構成は、前記
実施例と同様である。
As shown in FIG. 6, the hollow passage 37,
The air chambers of a pair of diagonally located suspensions are communicated upside down via 38. That is, the hollow path 37 of the suspension 34a and the hollow path 38 of the suspension 34c are tubes 39, and
The hollow passage 38 and the hollow passage 37 of the suspension 34c are connected by a tube 40. In addition, the suspensions of other groups have the same connection. Other configurations are the same as those in the above-mentioned embodiment.

【0018】以下本実施例の動作を説明する。洗濯工程
中に生じた衣類Aの分布の片寄によるアンバランスによ
って、遠心脱水行程においては、外槽13と洗濯槽16
は激しく振動する。特に、脱水起動時に共振点を通過す
る際には、対角に位置したサスペンションのバネ抑え2
1は上下振動の振幅が最大になり、このときバネ支持板
23は大きく摺動する。従ってサスペンション34cの
空気室36は圧縮されて、内部の空気は開口部41から
中空路38・チューブ39・中空路37を通ってサスペ
ンション34aの空気室24に流れ込む。また、サスペ
ンション34aの空気室36の内部の空気は、同様に中
空路38・チューブ40・中空路37を通ってサスペン
ション34cの空気室24に流れ込む。この結果、サス
ペンション34aおよびサスペンション34cのバネ支
持板23は、互いに摺動量が規制されることになり、結
果としてダンパ力が一層強力に作用して、外槽13の振
動を減衰させることができる。また反対側も同様な接続
となっており、総てのバネ支持板23の摺動量が規制さ
れている。また、脱水が進んで定常回転になるとバネ支
持板23の摺動量は小さくなるため、結果としてダンパ
力は弱くなる。このため、脱水定常時には、外槽13の
振動は洗濯機本体19に伝わりにくくなり、騒音が低減
される。
The operation of this embodiment will be described below. In the centrifugal dehydration process, the outer tub 13 and the washing tub 16 are unbalanced due to the unbalanced distribution of the clothes A generated during the washing process.
Vibrates violently. In particular, when passing through the resonance point when starting dehydration, the spring restraints of the diagonally positioned suspensions 2
In No. 1, the amplitude of vertical vibration is maximum, and at this time, the spring support plate 23 slides largely. Therefore, the air chamber 36 of the suspension 34c is compressed, and the air inside flows into the air chamber 24 of the suspension 34a from the opening 41 through the hollow passage 38, the tube 39, and the hollow passage 37. Further, the air inside the air chamber 36 of the suspension 34a similarly flows into the air chamber 24 of the suspension 34c through the hollow passage 38, the tube 40, and the hollow passage 37. As a result, the spring support plates 23 of the suspension 34a and the suspension 34c are regulated in the amount of sliding relative to each other, and as a result, the damper force acts more strongly and the vibration of the outer tub 13 can be damped. Further, the same connection is made on the opposite side, and the sliding amount of all spring support plates 23 is restricted. Further, when the dehydration progresses to the steady rotation, the sliding amount of the spring support plate 23 becomes small, and as a result, the damper force becomes weak. Therefore, during steady dehydration, the vibration of the outer tub 13 is less likely to be transmitted to the washing machine body 19, and noise is reduced.

【0019】本実施例によれば、前記実施例の構成のも
のに比べ脱水起動時の制動力が大きくなり、大幅に振動
を低減してスムーズな脱水起動を可能にするものであ
る。
According to the present embodiment, the braking force at the time of starting dehydration is larger than that of the structure of the above-mentioned embodiment, vibration is greatly reduced, and smooth starting of dehydration is enabled.

【0020】[0020]

【発明の効果】本発明の第一の手段の自動洗濯機によれ
ば、対角に位置する一対のサスペンションのうちの一つ
はバネ抑えの底部に空気室を形成し、この空気室を吊り
棒に形成した中空路を介して他のサスペンションのバネ
抑えの上部の空気室と連通させたものであるため、対角
に位置する一対のサスペンションの働きにより、脱水起
動時には制動力が大きく、定常回転時には制動力の小さ
い、低騒音で耐久性に優れた自動洗濯機となるものであ
る。
According to the automatic washing machine of the first means of the present invention, one of a pair of diagonally positioned suspensions forms an air chamber at the bottom of the spring retainer, and suspends this air chamber. Since it is communicated with the upper air chamber of the spring restraint of other suspension through the hollow passage formed in the rod, the braking force is large at the time of dehydration start and steady due to the action of the pair of suspensions diagonally located. This is an automatic washing machine with low braking force when rotating, low noise, and excellent durability.

【0021】また本発明の第二の手段の自動洗濯機によ
れば、サスペンションを構成する吊り棒にはバネ支持板
の上下に形成した空気室と連通する一組の中空路を設
け、この中空路を介して対角に位置する一対のサスペン
ションの空気室を上下逆に連通させたものであるため、
上下の空気室のダンパ作用により一層脱水起動時の制動
力が大きく、スムーズな脱水起動ができる自動洗濯機と
なるものである。
Further, according to the automatic washing machine of the second means of the present invention, the suspension rod constituting the suspension is provided with a set of hollow passages communicating with the air chambers formed above and below the spring supporting plate. Since the air chambers of a pair of diagonally positioned suspensions are connected upside down via an air passage,
Due to the damper action of the upper and lower air chambers, the braking force at the time of dehydration start is further large, and the automatic washing machine can smoothly start dehydration.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の第一の手段の実施例を示す自動洗濯機
の平面図
FIG. 1 is a plan view of an automatic washing machine showing an embodiment of the first means of the present invention.

【図2】同自動洗濯機の縦断面図FIG. 2 is a vertical sectional view of the automatic washing machine.

【図3】同自動洗濯機のサスペンション部分の断面図FIG. 3 is a sectional view of a suspension portion of the automatic washing machine.

【図4】同自動洗濯機の他のサスペンション部分の断面
FIG. 4 is a sectional view of another suspension portion of the automatic washing machine.

【図5】同自動洗濯機のサスペンション間の接続を示す
断面図
FIG. 5 is a sectional view showing a connection between suspensions of the automatic washing machine.

【図6】本発明の第二の手段の実施例を示すサスペンシ
ョン部分の断面図
FIG. 6 is a sectional view of a suspension portion showing an embodiment of the second means of the present invention.

【図7】同サスペンション間の接続を示す断面図FIG. 7 is a sectional view showing a connection between the suspensions.

【図8】従来の自動洗濯機を示す縦断面図FIG. 8 is a vertical sectional view showing a conventional automatic washing machine.

【図9】同サスペンション部分の断面図FIG. 9 is a sectional view of the suspension portion.

【符号の説明】[Explanation of symbols]

13 外槽 16 洗濯槽 18a〜18d・34a〜34d サスペンション 19 洗濯機本体 20・29・35 吊り棒 21 バネ抑え 22 圧縮バネ 23 バネ支持板 24・26・31・36 空気室 25 底板 28・30・37・38 中空路 32・39・40 チューブ 34・41 開口部 13 Outer tub 16 Washing tub 18a to 18d / 34a to 34d Suspension 19 Washing machine main body 20/29/35 Suspension bar 21 Spring restrainer 22 Compression spring 23 Spring support plate 24/26/31/36 Air chamber 25 Bottom plate 28/30 / 37/38 Hollow path 32/39/40 Tube 34/41 Opening

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 脱水槽を兼ねた洗濯槽の外側に位置して
脱水時の水を受ける外槽と、この外槽を洗濯機本体から
弾性支持する四隅のサスペンションとを備え、前記サス
ペンションは、吊り棒と、この吊り棒の下端に取付けた
バネ支持板と、前記吊り棒に挿通されバネ支持板を覆う
バネ抑えと、バネ支持板とバネ抑えとの間に介装した圧
縮バネとを有し、対角に位置する一対のサスペンション
のうちの一つはバネ抑えの底部に空気室を形成し、この
空気室を吊り棒に形成した中空路を介して他のサスペン
ションのバネ抑えの上部の空気室と連通させた自動洗濯
機。
1. An outer tub located outside a washing tub that also serves as a dehydrating tub to receive water at the time of dehydration, and a four-corner suspension that elastically supports the outer tub from a main body of a washing machine. A suspension rod, a spring support plate attached to the lower end of the suspension rod, a spring retainer that is inserted into the suspension rod and covers the spring support plate, and a compression spring interposed between the spring support plate and the spring retainer. However, one of the pair of suspensions diagonally located forms an air chamber at the bottom of the spring restraint, and this air chamber is connected to the upper portion of the spring restraint of the other suspension through the hollow passage formed in the suspension rod. An automatic washing machine that communicates with the air chamber.
【請求項2】 脱水槽を兼ねた洗濯槽の外側に位置して
脱水時の水を受ける外槽と、この外槽を洗濯機本体から
弾性支持する四隅のサスペンションとを備え、前記サス
ペンションは、吊り棒と、この吊り棒の下端に取付けた
バネ支持板と、前記吊り棒に挿通されバネ支持板を覆う
バネ抑えと、バネ支持板とバネ抑えとの間に介装した圧
縮バネと、バネ支持板の上下に形成した空気室とを有
し、前記吊り棒には上および下の空気室と連通する一組
の中空路を設け、この中空路を介して対角に位置する一
対のサスペンションの空気室を上下逆に連通させた自動
洗濯機。
2. An outer tub located outside the washing tub also serving as a dehydrating tub to receive water at the time of dehydration, and four suspensions for elastically supporting the outer tub from the main body of the washing machine, the suspension comprising: A suspension rod, a spring support plate attached to the lower end of the suspension rod, a spring retainer inserted through the suspension rod and covering the spring support plate, a compression spring interposed between the spring support plate and the spring retainer, and a spring. A pair of suspensions having air chambers formed above and below a support plate, the suspension rod being provided with a pair of hollow passages communicating with the upper and lower air chambers, and a pair of suspensions diagonally positioned through the hollow passages. An automatic washing machine in which the air chamber of is connected upside down.
JP04057807A 1992-03-16 1992-03-16 Automatic washing machine Expired - Fee Related JP3120541B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04057807A JP3120541B2 (en) 1992-03-16 1992-03-16 Automatic washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04057807A JP3120541B2 (en) 1992-03-16 1992-03-16 Automatic washing machine

Publications (2)

Publication Number Publication Date
JPH05253389A true JPH05253389A (en) 1993-10-05
JP3120541B2 JP3120541B2 (en) 2000-12-25

Family

ID=13066198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04057807A Expired - Fee Related JP3120541B2 (en) 1992-03-16 1992-03-16 Automatic washing machine

Country Status (1)

Country Link
JP (1) JP3120541B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011503486A (en) * 2007-11-14 2011-01-27 マリキャップ オーワイ Lock ring
CN108457046A (en) * 2017-02-18 2018-08-28 台湾松下电器股份有限公司 Buffer device of laundry groove

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011503486A (en) * 2007-11-14 2011-01-27 マリキャップ オーワイ Lock ring
CN108457046A (en) * 2017-02-18 2018-08-28 台湾松下电器股份有限公司 Buffer device of laundry groove
CN108457046B (en) * 2017-02-18 2021-03-23 台湾松下电器股份有限公司 Buffer device of laundry groove

Also Published As

Publication number Publication date
JP3120541B2 (en) 2000-12-25

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