JPS6366240B2 - - Google Patents

Description

【発明の詳細な説明】 本発明は工業用水洗機、家庭用洗濯機等洗濯機
全般に応用できるドライクリーニング機における
洗濯ドラムバランス調整装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a washing drum balance adjusting device for a dry cleaning machine which can be applied to all kinds of washing machines such as industrial washing machines and household washing machines.

一般に洗濯機はドラム内に衣料を入れて洗濯
後、ドラムを高速回転させて遠心力により脱液を
行なうが、脱液の際衣料がドラム内で均一な分布
しないため、衣料の偏荷重により大きな加振力が
発生して、機械寿命を短くするとともに、振動が
地盤を通して周囲に伝わり、振動公害のもととな
つていた。 In general, in a washing machine, clothes are placed in a drum, and after washing, the drum is rotated at high speed to remove liquid using centrifugal force. However, when removing liquid, the clothes are not evenly distributed in the drum, so the unbalanced load on the clothes causes a large amount of liquid. Excitation force was generated, shortening the life of the machine, and vibrations were transmitted through the ground to the surrounding area, causing vibration pollution.

しかし従来行なわれている対策は大きく分けて
次の３つであつた。 However, the measures that have been taken in the past can be broadly divided into the following three types.

(a) 衣料の偏荷重を低減する。(a) Reduce unbalanced loads on clothing.

(b) 地盤に伝わる振動を遮断する。(b) Block vibrations transmitted to the ground.

(c) 地盤を補強する。(c) Reinforce the ground.

先ず(a)の例として、洗濯終了後、脱液前に、回
転ドラム内の衣料が遠心力によりほぼ1G（Ｇ：重
力加速度）の力を受ける回転数（バランス転）
に、一定時間保つ対策があるが、この対策により
衣料の偏荷重は半減近くなるものの、時々大きな
偏荷重が出ることがあり、完全な対策とはいえな
かつた。 First, as an example of (a), after washing and before removing liquid, the rotation speed (balance rotation) where the clothes in the rotating drum are subjected to a force of approximately 1G (G: gravitational acceleration) due to centrifugal force.
There is a measure to maintain the load for a certain period of time, but although this measure nearly halves the unbalanced load on clothing, sometimes a large unbalanced load occurs, so it cannot be said to be a perfect measure.

次に(b)の例として、バネとダンパとで構成され
た防振架台により、機械全体を弾性支持したも
の、或はドラム部分だけを弾性支持したものが知
られている。この対策により機械から地盤に伝わ
る振動伝達量は１／５程度となり、振動公害の問
題は解消したが、弾性支持された機械或はドラム
部分の振動振巾は増加し、機械内の配管の洩れ、
締結部分のゆるみ等の問題が発生する欠点があつ
た。 Next, as an example of (b), there are known machines in which the entire machine is elastically supported by a vibration-isolating frame composed of a spring and a damper, or in which only the drum part is elastically supported. With this measure, the amount of vibration transmitted from the machine to the ground was reduced to about 1/5, and the problem of vibration pollution was solved, but the amplitude of vibration of the elastically supported machine or drum part increased, and leakage of piping inside the machine occurred. ,
There was a drawback that problems such as loosening of fastened parts occurred.

また(c)の例として、地盤に大きなコンクリート
ブロツクを据付け、地盤の振動を小さくする対策
があるが、充分な効果を得ようと思うと、基礎工
事に要する費用が大きなものとなつてしまう欠点
があつた。 Another example of (c) is to install large concrete blocks on the ground to reduce ground vibrations, but if you want to get the full effect, the disadvantage is that the cost required for foundation work becomes large. It was hot.

本発明は前記従来の欠点を解消するために提案
されたもので、洗濯ドラムに設けられ予め流体を
充満させた複数の密閉室と、同密閉室と通路を介
して接続された流体用バルブと、同密閉室に夫々
連結し同室内に圧縮空気を供給する圧縮空気用バ
ルブと、同洗濯ドラムの振動状態を検出する検出
装置と、同検出装置に接続しその検出結果を入力
して各密閉室に残すべき流体量を計算し、同計算
結果に基づき前記流体用バルブ及び圧縮空気用バ
ルブを作動させ、所定の前記密閉室へ所定量の圧
縮空気を供給して同密閉室内の流体を所定量排出
させる計算機とを有してなり、残留不釣合力を微
少にして振動を抑えることができるドライクリー
ニング機を提供せんとするものである。 The present invention has been proposed to solve the above-mentioned conventional drawbacks, and includes a plurality of sealed chambers provided in a washing drum and filled with fluid in advance, and a fluid valve connected to the sealed chambers via a passage. , a compressed air valve that is connected to the same sealed room and supplies compressed air into the same room, a detection device that detects the vibration state of the washing drum, and a detection device that is connected to the same detection device and inputs the detection results to each sealed room. Calculate the amount of fluid that should remain in the chamber, operate the fluid valve and compressed air valve based on the calculation results, and supply a predetermined amount of compressed air to the predetermined sealed chamber to control the fluid in the sealed chamber as desired. It is an object of the present invention to provide a dry cleaning machine which is equipped with a calculator for discharging a fixed amount of air, and is capable of minimizing residual unbalanced force and suppressing vibration.

以下本発明の実施例を図面について説明する
と、第１図〜第３図に於いて１は回転ドラム、
２，２ａ，２ｂは回転ドラムに設けられた密閉
室、３はシヤフト、４，５はベアリング、６はプ
ーリー、７，８，９は圧縮空気用のロータリージ
ヨイント、１０は液体用のロータリージヨイン
ト、１１，１１ａ，１１ｂはシヤフト内に加工さ
れた圧縮空気の通路、１２はシヤフト内に加工さ
れた液体の通路、１３は振動検出器、１４は基準
点検出器、１５は計算機、１６，１６ａ，１６ｂ
は圧縮空気用バルブ、１７は液体用バルブを示
す。一方偏荷重１８による振動は、振動検出器１
３により検出される。また基準点検出器１４によ
りドラム上の基準点の信号が与えられる。 Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, 1 is a rotating drum;
2, 2a, 2b are sealed chambers provided in the rotating drum, 3 is a shaft, 4, 5 are bearings, 6 is a pulley, 7, 8, 9 are rotary joints for compressed air, and 10 are rotary joints for liquids. 11, 11a, 11b are compressed air passages processed into the shaft, 12 are liquid passages processed into the shaft, 13 is a vibration detector, 14 is a reference point detector, 15 is a calculator, 16, 16a, 16b
17 indicates a compressed air valve, and 17 indicates a liquid valve. On the other hand, the vibration due to the unbalanced load 18 is detected by the vibration detector 1
Detected by 3. A reference point detector 14 also provides a signal of a reference point on the drum.

またドラム外周部に設けられた室２，２ａ，２
ｂには、予め液体用ロータリージヨイント１０を
介して液体が注入されており、圧縮空気用バルブ
１６，１６ａ，１６ｂを開くことにより、２，２
ａ，２ｂの各室内の液体を任意量だけ排出するこ
とが出来るようになつている。また脱液終了後各
室内の液が、1G以上の遠心加速を受けている状
態でバルブ１６，１６ａ，１６ｂを開くことによ
り、各室内に残つている液体を室外に排出するこ
とが出来る。 In addition, chambers 2, 2a, 2 provided on the outer periphery of the drum
A liquid is injected in advance through the rotary joint 10 for liquid, and by opening the compressed air valves 16, 16a, 16b,
The liquid in each chamber a and 2b can be discharged in an arbitrary amount. Furthermore, by opening the valves 16, 16a, and 16b while the liquid in each chamber is undergoing centrifugal acceleration of 1 G or more after the completion of liquid removal, the liquid remaining in each chamber can be discharged to the outside.

次に作用を説明すると、第８図に本発明の装置
を使用した自動釣合せのタイムスケジユールの一
例を示す。ドラム内の衣料のうける遠心加速度
が、1Gよりも大きく、且つ振動が問題とならぬ
程度に低い回転数（中間脱液回転）に於いて振動
測定を行なう。第５図は第３図に示す位置に衣料
の偏荷重がある場合に得られた振動検出値、及び
基準点の信号を示すものであり、Ｔはドラムが１
回転する時間、ｔは振動最大検出と基準点検出の
時間差である。 Next, to explain the operation, FIG. 8 shows an example of an automatic balancing time schedule using the apparatus of the present invention. Vibration measurements are carried out at a rotation speed (intermediate deliquoring rotation) where the centrifugal acceleration to which the clothing in the drum is subjected is greater than 1G and at a rotation speed low enough that vibrations are not a problem. Figure 5 shows the vibration detection value and the signal at the reference point obtained when there is an unbalanced load on the clothing at the position shown in Figure 3.
The rotation time t is the time difference between maximum vibration detection and reference point detection.

第５図より偏荷重の大きさ及び基準点と偏荷重
との角度θは次の通り求められる。 From FIG. 5, the magnitude of the unbalanced load and the angle θ between the reference point and the unbalanced load are determined as follows.

偏荷重量＝Ｃ×Ｅ 角度θ（rad）＝α−ｔ／Ｔ×2π Ｃ：実験より求められる定数 Ｅ：振動振幅の電気量に換算された値 α：基準点検出器と振動検出器の角度 この偏荷重と釣合せるために、ドラム外周に設
けられた各室内に残すべき液体の量は、第６図に
示すベクトル計算を行なうことによつて得られ
る。第６図に於いて、UBは衣料の偏荷重であ
る。また Ｆ…２室内に残つた液体による釣合荷重量（第
６図に於いてはＦ＝０である。） F′…２ａ室内に残つた液体による釣合荷重量
（第６図に於いてはＦ＝０である。） F″…２ｂ室内に残つた液体による釣合荷重量
（第６図に於いてはＦ＝０である。） また第７図に示す如く、中間脱液回転に於いて
衣料は多量の液を含んでおり、脱液回転に移行し
た時よりも偏荷重の量は大きい。第８図の例では
中間脱液回転にて、予め脱液回転に移行した時の
偏荷重と釣合せる考えをとつており、脱液回転に
移行した時の偏荷重と釣合せるために、各室内に
残つた液体による釣合荷重Ｐ、P′、P″は次の通
り求められる。 Unbalanced load amount = C x E Angle θ (rad) = α - t / T x 2π C: Constant obtained from experiment E: Value converted to electrical quantity of vibration amplitude α: Value of the reference point detector and vibration detector Angle In order to balance this unbalanced load, the amount of liquid that should be left in each chamber provided on the outer periphery of the drum can be obtained by performing the vector calculation shown in FIG. In Figure 6, UB is the unbalanced load on the clothing. In addition, F...balanced load due to the liquid remaining in chamber 2 (F=0 in Figure 6) F'...balanced load due to liquid remaining in chamber 2a (in Figure 6) (F=0.) F''...Balance load due to the liquid remaining in the 2b chamber (F=0 in Fig. 6.) Also, as shown in Fig. 7, in the intermediate deliquid rotation The clothing contains a large amount of liquid, and the amount of unbalanced load is larger than when the rotation shifts to the deliquing rotation. The idea is to balance the unbalanced load, and in order to balance the unbalanced load when transitioning to liquid removal rotation, the balanced loads P, P', and P'' due to the liquid remaining in each chamber are calculated as follows. .

Ｐ＝Ｋ×Ｆ P′＝Ｋ×F′ P″＝Ｋ×F″ Ｋ：実験より求められる定数 この値より各室内に残すべき液体の量を計算
し、各バルブ１６，１６ａ，１６ｂを所要時間開
いて、各室内に所定の液体が残る様、液体を排出
して不釣合の修正を行なう。 P=K×F P'=K×F'P"=K The unbalance is corrected by opening the chamber for a certain amount of time and draining the liquid so that a predetermined amount of liquid remains in each chamber.

この動作は要すれば、２、３回続けられ、残留
偏荷重量が規定値以下になつた場合に、脱液回転
への移行が行なわれる。尚ここでいう規定値と
は、一定の値ではなく最初に検出した偏荷重量
（Ｃ×Ｅ）に１以下の定数を掛けた値である。 This operation is continued two or three times if necessary, and when the amount of residual unbalanced load becomes less than a specified value, a transition to liquid removal rotation is performed. Note that the specified value here is not a fixed value, but a value obtained by multiplying the first detected unbalanced load amount (C×E) by a constant of 1 or less.

脱液回転に移行後、衣料に含まれている液は更
に脱液され、残留偏荷重が再び大きくなるため、
脱液回転にて振動測定を行ない、不釣合の修正を
行なう。脱液終了後再び中間脱液回転に移行し、
各室内の液が外壁にはりついている状態で、バル
ブ１６，１６ａ，１６ｂを開き、圧縮空気により
室２，２ａ，２ｂから液を排出する。 After transitioning to liquid removal rotation, the liquid contained in the clothing is further removed, and the residual unbalanced load increases again.
Vibration is measured during the deliqing rotation and unbalance is corrected. After the dewatering is completed, the process returns to the intermediate dewatering rotation.
With the liquid in each chamber stuck to the outer wall, the valves 16, 16a, 16b are opened and the liquid is discharged from the chambers 2, 2a, 2b by compressed air.

第１０図は本発明の装置を使用した自動釣合せ
のタイムスケジユールの別の例を示す。本例では
洗濯終了後すぐに脱液回転に移行させ、不釣合の
修正を行なう。この場合には前述のＦ、F′、
F″の値より各室内に残すべき液体の量を計算し
て、各バルブ１６，１６ａ，１６ｂを所要時間開
き、液体を排出して不釣合の修正を行なうことが
出来る。 FIG. 10 shows another example of an automatic balancing time schedule using the apparatus of the present invention. In this example, immediately after washing is completed, the rotation is shifted to deliquoring rotation to correct the unbalance. In this case, the aforementioned F, F′,
The amount of liquid to be left in each chamber is calculated from the value of F'', each valve 16, 16a, 16b is opened for a required period of time, the liquid is discharged, and the imbalance can be corrected.

第９図に本発明を実施した場合の効果を示す。
第９図に於いて、実線は本発明実施時の残留不釣
合量を、破線は本発明を実施しない場合の残留不
釣合量を、一点鎖線は本発明実施時の地盤振動レ
ベルを、二点鎖線は本発明を実施しない場合の地
盤振動レベルを示す。 FIG. 9 shows the effect of implementing the present invention.
In FIG. 9, the solid line represents the amount of residual unbalance when the present invention is implemented, the broken line represents the amount of residual unbalance when the present invention is not implemented, the one-dot chain line represents the ground vibration level when the present invention is implemented, and the two-dot chain line represents the ground vibration level when the present invention is implemented. The ground vibration level when the present invention is not implemented is shown.

第９図で分る様に、本発明を実施することによ
り、残留不釣合量は1/5以下に、また地盤の振動
レベルは１４dB以上下がり、振動問題を完全に
解決することが出来た。また脱液終了後、各室内
の液を強制的に室外に排出してしまうため、脱液
後熱風乾燥を行なう型式の地盤においては、余分
な熱を消費することもない。 As can be seen in Figure 9, by implementing the present invention, the amount of residual unbalance was reduced to less than 1/5, the ground vibration level was reduced by more than 14 dB, and the vibration problem was completely solved. Further, after the liquid removal is completed, the liquid in each room is forcibly discharged to the outside, so in the type of ground where hot air drying is performed after liquid removal, no excess heat is consumed.

以上詳細に説明した如く本発明は構成されてい
るので、一般にクリーニング店、工場にもある圧
縮空気を使用することにより、容易にドライクリ
ーニング機の防振制御が可能である。 Since the present invention is constructed as described in detail above, it is possible to easily control the vibration isolation of a dry cleaning machine by using compressed air, which is generally available in cleaning shops and factories.

また本発明はクローズドシステムになつている
ため、例えば中間脱液中でも、振動検出、計算
と、バランス修正の操作の繰返しが可能となり、
完全な不釣合いの修正が達成できる。 Furthermore, since the present invention is a closed system, vibration detection, calculation, and balance correction operations can be repeated, for example, even during intermediate dewatering.
Complete imbalance correction can be achieved.

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

第１図は本発明の実施例を示すドライクリーニ
ング機の側断面図、第２図は第１図のＡ〜Ａ断面
図、第３図は第１図のＢ〜Ｂ断面図、第４図は本
発明を使用した場合と使用しない場合を比較して
示す線図、第５図は振動検出値及び位置信号を示
す説明図、第６図は衣料偏荷重と釣合せるために
ドラム外周の各室に入れる液量のベクトル計算例
を示す説明図、第７図は脱液時間と、衣料と液の
重量との関係を示す線図、第８図は本発明を使用
する場合のタイムスケジユールの一例を示す説明
図、第９図は第８図の各々の時間に於ける残留偏
荷重の量を示す説明図、第１０図は第８図と異な
る自動釣合せのタイムスケジユールを示す説明図
である。 図の主要部分の説明 １…回転ドラム（洗濯ド
ラム）、２，２ａ，２ｂ…密閉室、７，８，９…
圧縮空気用のロータリージヨイント、１０…液体
のロータリージヨイント、１１，１１ａ，１１ｂ
…圧縮空気の通路、１２…液体の通路、１３…振
動検出器（検出装置）、１５…計算機、１６，１
６ａ，１６ｂ…圧縮空気用バルブ。 Fig. 1 is a side sectional view of a dry cleaning machine showing an embodiment of the present invention, Fig. 2 is a sectional view from A to A in Fig. 1, Fig. 3 is a sectional view from B to B in Fig. 1, and Fig. 4 is a sectional view from A to A in Fig. 1. 5 is an explanatory diagram showing vibration detection values and position signals. FIG. An explanatory diagram showing an example of vector calculation of the amount of liquid to be put into the chamber, Fig. 7 is a diagram showing the relationship between the dehydration time and the weight of clothing and liquid, and Fig. 8 is a diagram showing the time schedule when using the present invention. An explanatory diagram showing an example, Fig. 9 is an explanatory diagram showing the amount of residual unbalanced load at each time in Fig. 8, and Fig. 10 is an explanatory diagram showing a time schedule for automatic balancing that is different from Fig. 8. be. Explanation of main parts of the diagram 1... Rotating drum (washing drum), 2, 2a, 2b... Sealed room, 7, 8, 9...
Rotary joint for compressed air, 10...Rotary joint for liquid, 11, 11a, 11b
...Compressed air passage, 12...Liquid passage, 13...Vibration detector (detection device), 15...Computer, 16,1
6a, 16b... Compressed air valves.

Claims (1)

【特許請求の範囲】[Claims] １ 洗濯ドラムに設けられ予め流体を充満させた
複数の密閉室と、同密閉室と通路を介して接続さ
れた流体用バルブと、同密閉室に夫々連結し同室
内に圧縮空気を供給する圧縮空気用バルブと、同
洗濯ドラムの振動状態を検出する検出装置と、同
検出装置に接続しその検出結果を入力して各密閉
室に残すべき流体量を計算し、同計算結果に基づ
き前記流体用バルブ及び圧縮空気用バルブを作動
させ、所定の前記密閉室へ所定量の圧縮空気を供
給して同密閉室内の流体を所定量排出させる計算
機とを有してなることを特徴とするドライクリー
ニング機における洗濯ドラムバランス調整装置。1 A plurality of sealed chambers provided in the laundry drum and filled with fluid in advance, fluid valves connected to the sealed chambers via passages, and a compressor connected to each of the sealed chambers and supplying compressed air into the same chambers. The air valve is connected to a detection device that detects the vibration state of the washing drum, and the detection results are inputted to calculate the amount of fluid that should be left in each sealed chamber. and a computer that operates a compressed air valve and a compressed air valve to supply a predetermined amount of compressed air to a predetermined sealed chamber and discharge a predetermined amount of fluid in the sealed chamber. Washing drum balance adjustment device in the machine.