JPS6389196A - Washing machine - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a washing machine, and more specifically, it can clean not only light stains but also muddy stains on the toes and heels of white socks. Oil stains.

The present invention relates to an improved washing machine equipped with a new function that has never been seen before, which can thoroughly wash away so-called stubborn stains such as oil stains on work clothes.

[Conventional technology]

For example, in a washing machine equipped with a blade at the bottom of the washing tank that swirls and stirs the water to be washed and the objects to be washed, Japanese Patent Laid-Open No. 58
As shown in the drawing of Japanese Patent No. 141179, there is a relatively large distance between the outer periphery of the blade and the washing tank wall (generally 50 mm).
a) is maintained.

[Problem that the invention seeks to solve]

However, when washing is performed using a conventional washing machine, the items to be washed are suspended by the water flow of the rotating blades in the water to be washed, and come into contact with the blades only very infrequently. The contact force is only light due to the buoyant force acting on the object.

Additionally, when items with stubborn stains are washed together with other clothes, the items with stubborn stains get into the other clothes, and the number of times they come into contact with the blade is further reduced. , the dirt removal is further reduced.

A method of removing stubborn dirt using a conventional washing machine is to wash the item at an extremely low water level, for example, to the extent that the upper end of the blade is hidden, in order to increase the number of times the blade comes into contact with the item to be washed. However, as mentioned above, there is a gap between the outer periphery of the blade and the washing tank wall.
Because a relatively large distance is maintained, objects to be washed that are forced to the outer periphery of the blade due to centrifugal force when the blade rotates remain on the outer periphery, and contact with the blade is almost completely cut off. , the result is that the washing effect cannot be obtained.

In other words, the conventional washing machine is aimed at removing light stains that are frequently washed on a daily basis, and is designed to remove mechanical effects (friction, friction,
The reality is that impacts, bending, stretching, twisting, etc.) are not taken into consideration to the extent that stubborn stains occur.

In addition to this, in recent years, clothing has become more diverse and even more delicate, and this has also been the case in the field of washing machines.

In order to prevent these clothes from being damaged and to reduce entanglement between clothes, methods of stirring water for washing have been changed.

In other words, the conventional system in which the blades were rotated continuously for a long time at a relatively high rotational speed has recently been replaced by a system in which the blades are rotated forward and reverse every short cycle at a relatively low rotational speed.

However, from the standpoint of those who wash the blades for the purpose of removing stubborn stains, this decrease in the number of rotations of the blades is the cause of the decrease in dirt removal. Although it is rare at home, the current situation is that people wash their hands every time they wash their hands.

The present invention has been made in consideration of one or more points,
The purpose of this product is to use a new, unprecedented method that can not only remove light stains, but also remove stubborn stains that are difficult to remove, such as slimy stains on the toes and heels of white socks. The purpose of the present invention is to provide an improved washing machine that is equipped with the following functions.

[Means for solving problems]

The purpose of the above is to provide a blade near the blade that swirls and stirs the water to be washed and the items to be washed, around which the movement of the items to be washed is restricted in the horizontal and vertical directions, and the water to be washed can freely flow in and out. This is accomplished by removably attaching a tab with a through hole.

[Effect]

Therefore, by adopting the above configuration, the present invention provides the following features:
When washing for the purpose of removing light dirt,
All you have to do is remove the tab located close to the blade.
By removing this tab, washing can be performed in the same manner as before.

On the other hand, when washing the toes and heels of white socks for the purpose of removing stubborn stains, attach the above-mentioned tab around the blade, place the item to be washed and detergent in the tab, and then wash the toes and heels of white socks. If water is poured into the container to be washed to the extent that the items to be washed are submerged and the blades are rotated in this state, the horizontal and vertical movement of the items to be washed is regulated by the tabs, and the main body of the washing action is A certain blade and the object to be washed come into contact with each other as many times as possible over a long period of time, and at this time, mechanical effects such as friction, bending, impact, etc. are effectively applied to the object to be washed by the blade. In addition to this, in the present invention, the surface of the tub is provided with a through hole that allows the water to be washed to freely flow in and out between the inside of the washing tank and the inside of the tub. The object to be washed comes into contact with the blade as the blade rotates, and is further pressed against the inner circumferential wall of the tub along with the washing water that attempts to flow out of the tub from the through hole due to the centrifugal force of rotation of the blade,
Finally, it rotates while rolling on the inner peripheral wall of the tub, and the friction surface of the object to be washed changes in various ways, increasing the friction between the inner peripheral wall of the tub and the object to be washed, and also increasing the bending and stretching action of the object to be washed. , you can easily wash off stubborn stains from the toes and heels of the white socks mentioned above.

〔Example〕

Hereinafter, the present invention will be explained based on one embodiment of FIGS. 1 to 5, taking as an example the case where the present invention is applied to an automatic two-tank washing machine. FIG. 2 is a partially vertical front view showing the overall configuration of the washing machine, FIG. 3 is a sectional view taken along line A-A in FIG. 1, and FIG. A partially enlarged view of the control panel shown;
Figure 5 shows the cleaning power index when removing stubborn stains using the washing machine of the present invention compared to the conventional washing machine.

Furthermore, it is an explanatory diagram showing the cleaning effect in comparison with that when stubborn stains are removed using a washing machine which is the premise of the present invention.

1 and 2, inside an outer frame 1 constituting the outer shell of the washing machine, a washing tank 2 and a water receiving tank 3 are arranged side by side, and below the outer frame 1, a main body base 4 is provided. is installed. Further, a control panel 5 that controls the entire system is attached above the outer frame 1, and a washing motor 6 is supported on the main body base 4 in a vibration-proof manner. has been done. On the other hand, the bottom of washing tank 2.

In the center, a reducer 8 having a prescribed reduction ratio rotatably supports blades 9 above and a driven pulley 10 below.
The water seal is fixed by

The driven pulley 10 and the driving pulley 7 are connected by a transmission belt 13, and the rotation of the washing motor 6 is controlled by the driving pulley 7.
The speed is reduced by the ratio of the pulley diameters of the driven pulley 10 and the reduction ratio of the speed reducer 8, and the speed is transmitted to the blades 9, thereby performing a washing action.

Therefore, a concave guide groove 14 is formed on the bottom of the washing tank 2.
is formed in a circular shape, and the blade 9 is fitted into the circular shape.
1 and 3 in the vicinity of and around it.
As shown in 6, there is a through hole (
The tab 15 has a suction cup 171;
It is attached to the bottom of the tank. That is, the tab 15 is
Horizontal movement is regulated by the guide groove 14,
With vertical movement restricted by the suction cup 17,
It is detachably attached to the washing tank 2.

In the illustrated embodiment, at the center of the upper surface of the tab 15,
An opening 18 is provided in the tab 15, and a flange 1 protruding inwardly of the tab 15 is provided in the opening 18 of the tab 15.
5a are arranged in series. A representative example of the molding material for the tab 15 is polypropylene, which is lightweight, inexpensive, easy to mass produce, and has excellent chemical resistance.

Starting and stopping of the washing motor 6 is controlled by an automatic timer and a pressure switch (not shown). To explain this in more detail, the water level switching knob provided on the control panel shown with reference numeral 5 in FIGS. 2 and 4;
That is, by turning the water level selection knob 19 linked to the pressure switch to select the water level to be washed, and setting the automatic timer knob 20, the water supply solenoid valve 21 shown in FIG. 2 is automatically activated to start water supply. When the preset water level is reached, the pressure switch is activated and the washing process begins.

In the above configuration, when washing for the purpose of removing light dirt, it is sufficient to remove the tab 15 provided close to the blade 9, and by removing this tab 15, washing can be performed in the same manner as before. It will be done.

On the other hand, the toes and heels of white socks.

When washing for the purpose of removing stubborn stains, the above-mentioned tab 15 is attached around the blade 9, and the item to be washed and detergent are placed in the tub 15.

Set the water level switching knob 19 to an extremely low water level and set the automatic timer knob 20. Due to this.

Water is supplied to the vicinity of the upper end of the tab 15, and the prescribed start-up and
Washing is started in the stop cycle, and during washing, the movement of the object to be washed in the horizontal and vertical directions is regulated by the tab 15, and the blade 9, which is the main body of the washing action, and the object to be washed are separated.

The object to be washed is contacted as many times as possible for a long period of time, and at this time, the blades 9 rub against the object to be washed.

Mechanical effects such as bending, stretching, and impact are effectively applied. In addition to this, in one aspect of the present invention, the surface of the tab 15 includes:

Since a through hole 16 is provided between the washing tank 2 and the tub 15 to allow the water to be washed to freely flow in and out, when washing starts, the items to be washed in the tub 15 flow as the blades 9 rotate. While contacting the blade 9, the washing water is pressed against the tub inner circumferential wall together with the washing water that is about to flow out of the tub 15 from the through hole 16 due to the rotating centrifugal force of the blade 9, and finally rotates while rolling on the tub inner circumferential wall. However, the friction surface of the object to be washed changes in various ways, increasing the friction between the inner peripheral wall of the tub and the object to be washed, and also increasing the bending and stretching action of the object to be washed. You can easily wash off stubborn stains.

As shown in the first embodiment, if an opening 16 is provided in the center of the upper surface of the tab 15, when washing stubbornly soiled items two or three times in a row, the tab 15 can be opened each time.
There is no need to remove it, making it easy to handle the items to be washed.

Additionally, as shown in the illustrated embodiment, the opening 16 of the tab 15
If a flange 15a that is located in the opening 16 and protrudes inward of the tab 15 is provided in a row, the opening 16 can be opened when washing.
It is possible to reliably prevent items to be washed from flying out.

The washing machine of the present invention and the conventional washing machine, as well as the washing machine that forms the premise of the present invention (note that the washing machine that forms the premise of the present invention includes a through hole 16 on the surface of the tub 15 that allows washing water to freely flow in and out. As is clear from Figure 5, which shows the detergency index when removing stubborn stains using a washing machine that does not have a It can be seen how effective the washing machine of the present invention is in removing stubborn stains.

6 to 8 are longitudinal sectional front views of main parts showing other embodiments of the washing machine of the present invention, respectively.

Fig. 1 shows a case where a tab 15 is removably attached near and around a blade 9' having a different shape from the blade 9, and Fig. 7 shows a blade 9' having the same shape as that of Fig. 1. Adjacent to and around the vane 9, there is a reference numeral 15 in FIGS. 1 and 6.
8 shows a case where a dome-shaped tab 15' having a different shape from the tab shown in FIG. A case is shown in which a tab 15' having the same shape as that shown in the figure is detachably attached.

In addition, FIGS. 9(a) to (f) show through holes in the surface of the tab 15 (15' in the embodiments of FIGS. 7 and 8; the same applies hereinafter) used in the washing machine of the present invention. 16 various modifications were shown.

Further, in the illustrated embodiment, the present invention is applied to an automatic two-tank washing machine, but the present invention can also be applied to a non-automatic two-tank washing machine, or even a single-tank fully automatic washing machine. No problem.

On the other hand, as a preparation before removing stubborn stains using the washing machine of the present invention, soak the items to be washed in a highly concentrated detergent, or use it instead of water! It is also a good idea to use hot water.

Furthermore, according to the present invention, a mini-washing tank is formed by the tab 15, so that a very small amount of the object to be washed 1 can be washed.
For example, it is effective when you want to wash a handkerchief, a pair of baby socks, or a bib as soon as possible. ), soft washing is also possible by appropriately adjusting the rotation speed of the machine.In addition, in small households, it is possible to wash vegetables and potatoes with a small amount of water, and in fishing villages, it can be used to remove slime from octopus with a small amount of water. It also becomes possible to drain the various items mentioned above.

In addition to this, in the present invention, it is also possible to place the item to be washed outside the tub 15 and wash it.

Since the item to be washed does not come into direct contact with the blades 9, this is suitable for washing a wool sweater with water, for example.

Here, the additional effects of the washing machine of the present invention will be described below. In the present invention, the surface of the tub 15 has a through hole 16 that allows washing water to freely flow in and out, so that it can be easily removed after removing stubborn dirt. The rinsing effect on the laundry items is good.

Further, when the tab 15 has a through hole 16 on its surface, the weight of the tab 15 is reduced accordingly, which not only makes handling easier, but also further reduces material costs.

Furthermore, when a lateral movement having a through hole 16 on the surface of the tab 15 is adopted, the elasticity, that is, the toughness, of the tab 15 increases, and the durability of the tab 15 when accidentally dropped on the floor can be improved. can.

〔Effect of the invention〕

The present invention has been described above, and as is clear from the description of the illustrated embodiment, the present invention can be applied not only to light stains but also to stains such as muddy stains on the toes and heels of white socks.
It is possible to provide an improved washing machine equipped with an unprecedented new function, which can cleanly wash away stubborn dirt that is generally small in amount but difficult to remove.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the present invention, Figure 1 is a longitudinal sectional front view of the washing tank 2 and related parts, which are the main parts of the invention, and Figure 2 shows the overall configuration of the washing machine. Partial longitudinal front view,
Fig. 3 is a sectional view taken along line A-A in Fig. 1, Fig. 4 is a partial enlarged view of the control panel indicated by reference numeral 5 in Fig. 2, and Fig. 5 is a case where stubborn stains are removed using the washing machine of the present invention. FIG. 2 is a diagram illustrating the cleaning effect in comparison with that when stubborn stains are removed using a conventional washing machine and the washing machine that forms the premise of the present invention. FIGS. 6 to 8 are longitudinal sectional front views of main parts showing other embodiments of the washing machine of the present invention, and FIGS. 9(a) to 9(f) show through holes in the surface of the tab used in the washing machine of the present invention. It is a partially enlarged view which shows various modification examples of. 2...Washing tank, 9 and 9'...Blade, 15 and 15'...Tab, 15a and 15'a...Flange, 16...Through hole, 18...Opening.

Claims (1)

[Scope of Claims] 1. In a washing machine equipped with a blade at the bottom of the washing tank that swirls and stirs the water to be washed and the items to be washed, there is a blade in the vicinity of the blade, which rotates the items to be washed in the horizontal and vertical directions. A washing machine characterized by being detachably attached to a tab having a through hole that restricts movement and allows free inflow and outflow of water to be washed. 2. A washing machine according to the invention as set forth in claim 1, wherein an opening is provided in the center of the upper surface of the tub. 3. The washing machine according to the invention as set forth in claim 2, in which a flange that is located at the center opening of the upper surface of the tub and projects inward of the tub is connected. 4. A washing machine according to any one of claims 1 to 3, wherein the tub is made of polypropylene resin.