JP3120541B2 - Automatic washing machine - Google Patents
Automatic washing machineInfo
- Publication number
- JP3120541B2 JP3120541B2 JP04057807A JP5780792A JP3120541B2 JP 3120541 B2 JP3120541 B2 JP 3120541B2 JP 04057807 A JP04057807 A JP 04057807A JP 5780792 A JP5780792 A JP 5780792A JP 3120541 B2 JP3120541 B2 JP 3120541B2
- 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.)
- Expired - Fee Related
Links
- 238000005406 washing Methods 0.000 title claims description 55
- 239000000725 suspension Substances 0.000 claims description 82
- 230000018044 dehydration Effects 0.000 claims description 22
- 238000006297 dehydration reaction Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 6
- 101150114468 TUB1 gene Proteins 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Description
【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 an automatic washing machine for home use having a vibration-proof structure.
【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, this type of automatic washing machine has a structure as shown in FIG. That is, a speed reducer 2 is fixed to a lower portion of the outer tub 1 for receiving water during dehydration, and the speed reducer 2 is connected to a motor 3 fixed to a lower portion 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 which is located inside the outer tub 1 and also serves as a dewatering 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 supported from four corners of the main body 7 of the washing machine via suspensions 6 in a vibration-proof manner. The suspension 6 has a configuration 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 mounted on the spring support plate 11 are reduced in diameter 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 friction with the spring retainer 9. The spring support plate 11 is slidably fitted on the inner periphery of the lower end of the spring holder 9. The spring holder 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 configuration, water supply, washing, drainage,
Although the centrifugal spin-drying is performed automatically, in an automatic washing machine, when the spin-drying tub 4 is rotated and centrifugal spin-drying is performed, large vibrations are generated due to imbalance caused by the offset of the clothes A. In particular, at the time of startup and at the time of passing through the resonance point, the amplitude of this vibration becomes maximum. In order to suppress the vibration of the resonance, the conventional configuration has a configuration in which the spring retainer 9 and the spring support plate 11 are frictionally slid to attenuate the vibration. When the amount of frictional attenuation is increased, the amplitude at the resonance point is reduced, but the vibration is easily transmitted to the washing machine main body 7 and the noise such as vibration noise and sliding noise is increased. Conversely, when the friction attenuation is small, the noise is small, but the amplitude at the resonance point is large.
Therefore, a sufficient amount of attenuation is obtained by the friction between the spring retainer 9 and the spring support plate 11 until the dehydration tub 4 starts rotating and passes the resonance point after entering the dehydration process, and then the rotation speed passes the resonance point. After that, the shape memory alloy ring 12 is actuated to reduce this frictional force. In other words, when the shape memory alloy ring 12 receives a frictional heat and reaches a predetermined temperature, the shape memory alloy ring 12 is deformed into a stored shape, that is, the ring diameter is reduced, and as a result, the frictional force is reduced. Thus, the noise is reduced.
【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 thus the noise due to sliding noise and the like is large. Further, since the shape memory alloy ring 12 utilizes frictional heat for 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。Accordingly, the present invention has been made to solve the conventional problems, and has as its first object to obtain an automatic washing machine with reduced vibration in a dehydration process. It is a second object of the present invention to obtain an automatic washing machine in which the damping force of the suspension at the start of spin-drying is increased, the run-out of the outer tub is suppressed, smooth start-up is performed, 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と洗濯機
上部に設けたチューブ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。A first means of the present invention for achieving the first object is an outer tub located outside a washing tub also serving as a dewatering tub and receiving water during dehydration, A suspension at four corners for elastically supporting the outer tub from the main body of the washing machine, the suspension including a hanging bar, a spring supporting plate attached to a lower end of the hanging bar, and a spring supporting plate inserted through the hanging bar to cover the spring supporting plate. It has a spring restraint and a compression spring interposed between the spring support plate and the spring restraint, and one of a pair of diagonally located suspensions forms an air chamber at the bottom of the spring restraint. Hollow path and washing machine with air chamber formed as hanging rod
This is an automatic washing machine that is connected to an upper air chamber for suppressing the spring of another suspension via a tube provided at the upper part.
【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、この中空路と洗濯機上部に設けた２本のチュ
ーブ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。[0007] A second means of the present invention for achieving the second object is to provide an outer tub located outside a washing tub also serving as a dehydrating tub and receiving water during dehydration, and using the outer tub as a washing machine. A suspension at four corners elastically supported from the main body, the suspension comprising a suspension rod, a spring support plate attached to a lower end of the suspension rod, a spring restraint inserted through the suspension rod to cover the spring support plate, and a spring support. It has a compression spring interposed between the plate and the spring restraint, and air chambers formed above and below the spring support plate, and the hanging rod has a set of hollow paths communicating with the upper and lower air chambers. And two tubes provided above this hollow path and the top of the washing machine.
This is an automatic washing machine in which the air chambers of a pair of suspensions located at opposite corners via a valve 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。接続チューブ
は、振動の少ない洗濯機上部に設置されており、チュー
ブの振動音は小さい。 The first means of the present invention operates as follows.
Until the dehydration tub starts rotating and passes the resonance point after entering the dehydration process, the sliding amount of the spring support plate is large, and the air flow in the spring restraint slides on the spring support plate of the suspension located diagonally. As a result, a damper force acts and the vibration at the resonance point is reduced. In the steady state, the amount of sliding of the spring support plate is small, and the force of suppressing the slide of the spring support plate of the suspension due to the flow of air in the spring restraint is also small. And the noise is reduced. Connection tube
Is installed on the top of the washing machine where vibrations are low.
The sound of the vibration is small.
【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。しかも２本の接
続チューブは、振動の少ない洗濯機上部に設置されてお
り、チューブの振動音は小さい。 A second means of the present invention is to increase the damper force by connecting the air chambers of a pair of suspensions located at opposite corners upside down through a pair of hollow passages provided in the suspension rod, Suppress the sliding of the suspension's spring support plate with each other, increase the damper force at startup, and reduce the damper force at steady state, the vibration of the outer tub is less likely to be transmitted to the main body, and the noise is reduced . And two contacts
The connection tube is installed on the top of the washing machine with low vibration.
The vibration noise of the tube is low.
【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。DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the first means of the present invention will be described below. 1 and 2 show the overall configuration of the present embodiment. An outer tub 13 for receiving water during dehydration is provided outside the washing tub 16 also serving as a dehydration tub. A speed reducer 14 is fixed to a lower portion of the outer tub 13.
The speed reducer 14 is connected to a motor 15 fixed to a lower portion of the outer tub 13 by a belt. The drive shaft of the speed reducer 14 has a double structure, and a washing tub 16 located inside the outer tub 13 is fixed to 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-isolated and supported by suspensions 18a, 18b, 18c, and 18d provided at four corners of the main body 19 of the washing machine. Suspension 18a and suspension 1
8c, the suspension 18b and the suspension 18d are in a relationship of being located diagonally to each other with respect to 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と
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 configured as shown in FIG. Reference numeral 20 denotes a suspension rod that supports the outer tub 13, and a spring support plate 23 is attached to a lower end of the suspension rod. Reference numeral 21 denotes a cylindrical spring retainer which is inserted through the suspension rod 20 and covers the spring support plate 23. Reference numeral 22 denotes a spring retainer 21 and the spring support plate 2.
3, a bottom plate provided to form an air chamber 24 at the bottom of the spring holder 21; 26, an air chamber formed by the upper part of the spring support plate 23 and the spring holder 21;
Reference numeral 27 denotes an exhaust port provided in the air chamber 26, and reference numeral 28 denotes a hollow path communicating with the air chamber 24, which is formed in the suspension rod 20. Although the inner diameter of the spring restrainer 21 is tapered in the figure, the relationship between the inner diameters D and D1 of the distal end portion and the depth portion is molded so that D = D1 to be straight, and the spring support 21 It is desirable to reduce the sliding friction force.
【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 have a structure 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 path 30 communicating with an air chamber 31 formed 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。As shown in FIG. 5, in this embodiment, the suspensions 18a and the suspensions 18c located at diagonal positions are connected by a tube 32. Similarly, the suspension 18b and the suspension 18d are connected by a tube. That is, the upper ends of the hollow passages 28, 30 of the hanging rods 20, 29 located diagonally are connected by a tube, and the air chamber 24 communicates with the air chamber 31 above the spring restraint 23 of another suspension. It is. As shown in FIG. 1, the tube 32 is piped along a tube support 33 provided on an upper inner wall of the main body 19 of the washing machine.
【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 not balanced due to the imbalance due to the uneven distribution of the clothes A generated during the washing process.
Vibrates violently. In particular, when passing through the resonance point at the start of spin-drying, the springs 21 of the suspensions 18a and 18c and the suspensions 18b and 18d positioned diagonally have the maximum amplitude of vertical vibration. Therefore, at this time, the spring support plate 23 slides largely. For example, if the spring support plate 23 constituting the suspension 18c slides at this time, the space in the air chamber 31 becomes small and the air inside is pushed out from the opening 34. This air flows into the air chamber 24 constituting the suspension 18a through the hollow path 30, the tube 32, and the hollow path 28. As a result, the sliding amount of the spring support plate 23 constituting the suspension 18a is regulated. As a result, the damper force acts as a result, and the outer tank 13
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. When the dehydration proceeds and the rotation becomes steady, 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 is
And the 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 the present embodiment, since the friction between the spring retainer 21 and the spring support plate 23 is reduced, the noise due to the friction noise in the dewatering process can be reduced. Since the friction is small, the durability of the spring holder 21 and the spring support plate 23 is improved. Further, when the amplitude at the start of dehydration is large, the vibration is reduced by increasing the braking force, and the braking force is reduced in a steady state, so that noise can be reduced. Furthermore, each hollow path 2
The tube 32 used for the connection between the tubes 8 and 30 is piped from the upper portion of the suspension with less vibration to the tube supporting portion 33 provided on the upper inner wall of the washing machine main body 19,
The increase in noise due to vibration is also small.
【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.
A description will be given based on FIG. Four corner suspension 34
a and 34c (not shown, but one other set) have the following configuration. Each hanging rod 35 is connected to the spring support plate 2.
3, a hollow passage 37 communicating with the air chamber 24 formed above,
Air chamber 36 and opening 41 formed below spring support plate 23
And a pair of hollow passages 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。Then, as shown in FIG.
Through 38, the air chambers of a pair of suspensions located at diagonal positions are communicated upside down. That is, the hollow path 37 of the suspension 34a and the hollow path 38 of the suspension 34c are tubes 39, and the suspension 34a
And the hollow path 37 of the suspension 34c are connected by a tube 40. Note that other sets of suspensions have the same connection. Other configurations are the same as those of the above 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 not balanced due to the imbalance due to the uneven distribution of the clothes A generated during the washing process.
Vibrates violently. In particular, when passing through the resonance point at the start of spin-drying, the suspension springs of the diagonally positioned suspensions 2
In 1, the amplitude of the vertical vibration becomes maximum, and at this time, the spring support plate 23 slides greatly. Accordingly, the air chamber 36 of the suspension 34c is compressed, and the internal air flows from the opening 41 through the hollow path 38, the tube 39, and the hollow path 37 into the air chamber 24 of the suspension 34a. 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 path 38, the tube 40, and the hollow path 37. As a result, the sliding amounts of the spring support plates 23 of the suspension 34a and the suspension 34c are restricted, and as a result, the damper force acts more strongly, and the vibration of the outer tub 13 can be damped. The same connection is made on the opposite side, and the sliding amount of all the spring support plates 23 is regulated. Further, when dehydration proceeds and the rotation becomes steady, the sliding amount of the spring support plate 23 decreases, and as a result, the damper force decreases. For this reason, at the time of dehydration steady, the vibration of the outer tub 13 is hardly transmitted to the washing machine main body 19, and the 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 start of dehydration is larger than that of the configuration of the above-described embodiment, and the vibration is greatly reduced to enable a smooth dehydration start.
【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と洗濯機上部に設けたチューブを介
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 first aspect of the automatic washing machine of the present invention, one of a pair of diagonally located suspensions has an air chamber formed at the bottom of the spring and the air chamber is suspended. A pair of suspensions located diagonally because they are communicated with the air chamber above the spring restraint of the other suspension via the hollow path formed in the rod and the tube provided above the washing machine. By the above operation, the braking force is large at the start of spin-drying and small at the time of steady rotation, and the automatic washing machine has 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。According to the automatic washing machine of the second aspect of the present invention, the suspension rod constituting the suspension is provided with a set of hollow passages communicating with air chambers formed above and below the spring support plate. Because the air chambers of a pair of suspensions located diagonally through the airway are connected upside down,
By the damper action of the upper and lower air chambers, the braking force at the time of starting dehydration is further increased, and an automatic washing machine capable of smoothly starting dehydration is provided.
【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 a 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
図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 part 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 longitudinal 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.
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-18d ・ 34a-34d Suspension 19 Washing machine main body 20 ・ 29 ・ 35 Hanging rod 21 Spring restraint 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)
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と洗濯機本体上部に設
けたチューブ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 also serving as a dehydrating tub and receiving water during dehydration, and suspensions at four corners for elastically supporting the outer tub from a washing machine main body. A suspension rod, a spring support plate attached to the lower end of the suspension rod, a spring restraint inserted through the suspension rod to cover the spring support plate, and a compression spring interposed between the spring support plate and the spring restraint. One of a pair of diagonally located suspensions has an air chamber formed at the bottom of the spring restraint, and the air chamber is provided at a hollow path formed on a hanging rod and at an upper portion of the main body of the washing machine.
An automatic washing machine that communicates with the upper air chamber of the other suspension by a girder tube .
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、この中空路と洗濯機本体上部に設けた
２本のチューブ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 and receiving water during dehydration, and four corner suspensions for elastically supporting the outer tub from the washing machine main body, wherein the suspension comprises: A suspension bar, a spring support plate attached to the lower end of the suspension bar, a spring restraint inserted through the suspension bar to cover the spring support plate, a compression spring interposed between the spring support plate and the spring restraint, and a spring. An air chamber formed above and below the support plate is provided, and a pair of hollow paths communicating with the upper and lower air chambers are provided on the hanging bar, and the hollow paths and the upper part of the washing machine main body are provided.
An automatic washing machine in which air chambers of a pair of diagonally located suspensions are connected upside down via two tubes .
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 JPH05253389A (en) | 1993-10-05 |
| JP3120541B2 true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI120111B (en) * | 2007-11-14 | 2009-06-30 | Maricap Oy | lock ring |
| TWI608141B (en) * | 2017-02-18 | 2017-12-11 | Matsushita Electric Taiwan Co Ltd | Laundry tank buffer device |
-
1992
- 1992-03-16 JP JP04057807A patent/JP3120541B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05253389A (en) | 1993-10-05 |
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|---|---|---|---|
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