JPS62286499A - Washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] The present invention is applicable to hard stains, such as muddy stains on white socks. This product is for cleaning stubborn stains from top and bottom coveralls, etc.

[Conventional technology]

In conventional washing machines, clothes circulate through the washing tank in proportion to the amount of water put into the washing tank and following the water flow generated by the blades. Generally, the applied mechanical action is small (Japanese Patent Application Laid-Open No. 141179/1983). For this reason, in terms of the original function of the washing machine, which applies mechanical action to the items being washed to remove dirt, it is sufficient for washing light dirt and dirt that is generally easy to remove, but it is sufficient for washing items that are washed on a daily basis. Housewives are most worried about small but strong stains, such as dirt on the toes and heels of white socks, dirt on work gloves, oil stains, as well as stubborn stains such as rags and white work coveralls. The current situation is that these stains are generally washed by hand, which takes time and effort. In addition, with the diversification and delicate nature of clothing in recent years, there has been a trend to reduce fabric damage and tangles caused by washing. Washing machines that operate in forward and reverse directions in short cycles have become mainstream, and it is common for the dirt removal rate to decrease due to a decrease in the number of rotations of the blades.

[Problem that the invention seeks to solve]

These conventional washing machines target ordinary dirt, and the main cause of the washing action of washing machines is the mechanical action (friction, impact, bending, stretching, twisting, etc.) on the items being washed due to the rotation of the blades.
is not sufficient for strong and heavy stains.

The purpose of the present invention is to remove stubborn stains that are generally small in amount but are often dissatisfied with dirt removal, such as muddy stains on white socks, muddy and oily stains on work gloves, as well as rags, white work coveralls, etc. The purpose is to effectively remove stubborn dirt using a washing machine, without having to manually wash stubborn dirt, which takes time and effort as in the past.

[Means for solving problems]

The above purpose is to bring the six blades that are the main body of the washing action into contact with the clothes as many times and for as long as possible while applying pressure, and to apply mechanical effects such as friction, bending and stretching, etc. to the clothes with the blades. This is achieved by

[Effect]

In other words, in conventional washing machines, the washing water level is generally at least 200 meters above the bottom of the washing tank, and the distance between the outer periphery of the blades and the tank wall is 50ffI11 or more. Therefore, for example, when you want to wash socks, work gloves, etc., these items float in the water to be washed by the water flow of the rotating blades, and only come into contact with the blades very infrequently and only with slight pressure due to buoyancy.
Furthermore, if you wash it with other clothes, it will get into the clothes, and the number of times it will come into contact with the blades will be further reduced, further reducing the ability to remove stains. Furthermore, in order to increase the number of times the clothes come into contact with the blades in conventional washing machines, even if the water level is kept extremely low, for example to the extent that the upper end surface of the blades is hidden, clothes will basically stay above the blades when the blades rotate. It runs away and there is almost no improvement in cleaning power.

Therefore, in order to eliminate these drawbacks and achieve the purpose of the present invention, the clothes and the blades should be brought into contact with each other as many times as possible while applying effective pressure during washing, and the clothes should always be kept in contact with the blades while the clothes are being washed. due to friction.

The key is to make it subject to mechanical effects such as bending, stretching, and impact. For this reason, a restraining plate may be provided above the blade to restrict the movement of clothing.

〔Example〕

An embodiment of the present invention will be described below using an example in which it is applied to a two-bottom washing machine.

In FIG. 1, a washing tank 2 and a water receiving tank 3 are arranged side by side inside an outer frame 1 forming the outer shell of the washing machine.

Below the outer frame 1 is the main body base 4. A control panel 5 that controls the entire system is configured above the outer frame 1. In Fig. 2, a washing motor 6 is supported on the main body base 4 in a vibration-proof manner, and above it a drive pulley 7 is supported with a shaft. has been done. On the other hand, at the center of the bottom of the washing tank 2, there is a reducer 8 having a specified reduction ratio.
The blade 9 is rotatably supported above the driven pulley 10 and the driven pulley 10 is rotatably supported below it, and the driven pulley 10 and the driving pulley 7 are connected by a transmission belt 3. The rotation of the washing motor 6 is reduced in speed by the ratio of the pulley diameters of the drive pulley 7 and the driven pulley 10, and the reduction ratio of the reducer 8, and is transmitted to the blades 9, thereby performing the washing action.

On the other hand, a stepped portion 15 having a plurality of fitting holes 14 is formed at the bottom of the washing tank 2, and a stepped portion 15 that fits into the stepped portion 15 is provided at the center for putting in and taking out clothes. As shown in FIG. 2, a restraining plate 18 having a plurality of protruding ribs 17 is removably provided on the blade 9 side.

The method of attachment and detachment is with the fixing claw 19 that is part of the suppression plate 18.

Although a flange 22 is formed on the input port 16 at the center of the suppression plate 18, which is operated by a sliding pawl 21 supported by a push spring 20, clothes do not fly out from the input port 16 during rotation of the blade 9. It is better to have it protrude towards the blade 9 side.

The height H in the vertical direction of the restraining plate 18 is adjusted in the vertical direction depending on the amount of solid dirt that is per day for an average Japanese family of four and the lowest height that allows clothing to move between the blades 9.

When actually cleaning a small amount of dirt and grime.

The suppression plate 18 is attached and washing is performed at a water level that is about the lower end of the flange 22 of the input port 16. This water level level only needs to be high enough to submerge strong clothing.

The starting and stopping of the washing motor 6 is controlled by an automatic timer and a pressure switch (not shown). That is, as shown in FIG. 4, the user selects the desired water level by turning the water level switching knob 23 linked to the pressure switch provided on the control panel 5, and sets the automatic timer knob 24.

The water supply electromagnetic valve 25 shown in FIG. 1 is automatically activated to start water supply, and when the set water level is reached, the pressure switch is activated and washing starts. Needless to say, the operating pressure of the pressure switch is more sensitive than before, and it goes without saying that it can be operated at a lower water level.

To explain the washing operation now, the clothes to be washed and the detergent are put into the suppression plate 18, the water level switching knob 23 is set to an extremely low water level, and the automatic timer knob 24 is set.

As a result, water is supplied to the vicinity of the upper end of the suppression plate, and washing is started in the current start←→stop cycle. In conventional washing machines, clothes that come into contact with the blades 9 as they rotate always escape upwards, and the frictional force with each blade 9 is extremely small, resulting in insufficient cleaning power for stubborn stains. On the other hand, according to the present invention, the suppressing plate 18 located close to the upper side of the blade 9 prevents this, and the clothing becomes almost spherical and receives a certain amount of pressure from both the blade 9 and the protruding rib 17 on the inner wall of the suppressing plate 18. friction.

It always remains on the surface of the blade 9 under mechanical effects such as bending, stretching and impact. Therefore, compared to the conventional washing action, the effectiveness of the mechanical action for removing dirt is significantly improved. FIG. 5 shows the experimental results of the cleaning performance of the conventional washing machine and the washing machine of the present invention. Water amount.

Conditions such as detergent concentration are the same. ) From this result, 1
It can be seen how the stain removal effect of the present invention is improved.

Furthermore, in order to further enhance the effects of the present invention, when soaking dirty clothes in a highly concentrated detergent as a preparation before washing, the suppression plate 18 can be used as a guide for the amount of water even when washing the clothes at rest. It also saves water. At this time, instead of water,
The effect will be further improved if you use hot water around 0"C.

Furthermore, since the suppression plate 18 of the present invention is detachable, it is sufficient to remove it for normal washing, and there is no effect on normal washing.

Furthermore, in the present invention, since the clothing input port 16 is provided in the center of the suppression plate 18, when washing the clothes for the second or third time in a row, the subsequent washing can be done without removing the suppression plate 18 each time, and the operability is improved. improves.

Furthermore, the present invention is applicable to the shape of each blade 9, such as a flat blade as shown in FIG. 6.

It can be applied to any rotating blade, so it can be applied to a very wide range.

Although the embodiments of the present invention have been described above using an automatic two-tank washing machine, this invention is also applicable to a non-automatic two-tank washing machine.

The effects of a fully automatic washing machine with a single-tank bottom are exactly the same.6 Up until now, we have mainly explained the characteristics of strong washing, but this suppression plate 18 forms a mini-washing tank. This has the advantage of producing even more effects.

That is, it is extremely effective when you need to wash a very small handkerchief, a pair of baby socks, or a bib as soon as possible.

In addition, by making it possible to select the rotation speed of the blades 9 as appropriate and combining this with a soft water flow, the avenue for multi-purpose use literally opens up.

That is, for example, washing vegetables in a small household, washing potatoes, or removing slime from octopus in a fishing village.

Furthermore, the suppression plate 18 can also be used as a guard to prevent the blade 9 from coming into contact with the cloth.

In other words, wash by placing a cloth above the suppression plate 18.
For example, wool sweaters and the like literally do not come into contact with the feathers 9 and are washed only with water flow, which also has the advantage of completely preventing shrinkage.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to effectively bring the clothes and the feathers into contact with each other as many times as possible with a certain pressure, which is the main cause of the washing action. A machine that can remove tough stains such as dirt on white socks, dirt on work gloves, oil stains, and stubborn stains on rags, white work coveralls, etc., without having to take the time and effort to wash them by hand. It can be easily washed off.

[Brief explanation of drawings]

1 is a partial sectional view of a washing machine showing an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the washing mechanism shown in FIG. 1, and FIG. FIG. 4 is a partial front view of the panel part of FIG. 1, FIG. 2...Washing tank, 9...Blade, 16...Inlet,
17... Projection rib, 18... Suppression plate.
5〈Representative Patent Attorney Katsuma Ogawa −,
1 Tsu certain 1 figure 1 - m - flat stamp ne°] Kiss destination 2 figure/'7---Tamilifi゛18-ichiichiri Vshi1non

Claims (1)

[Claims] 1. In a washing machine having blades which are installed almost horizontally on the bottom of the washing tank and which are driven in one direction or alternately in forward and reverse rotations, the cloth is always kept on the surface of the blades while the blades are rotating. A washing machine characterized in that it has means not rotating with the blades to limit the upward movement of the cloth away from the blade surface so as to be rubbed in contact with the blades. 2. A washing machine according to claim 1, characterized in that a restraining plate is detachably provided at the bottom of the washing tank as means for restricting upward movement of the cloth. 3. A washing machine according to claim 2, characterized in that the restraining plate has an opening for entering and exiting the cloth in the center thereof. 4. The washing machine according to 2 above, characterized in that the surface of the restraining plate is provided with unevenness that produces a frictional effect.