JPS63302891A - 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 [Field of Industrial Application] The present invention relates to a washing machine for general household use, and particularly to one provided with a second washing tank within the washing tank.

[Conventional technology]

Conventionally, a device in which a second washing tank is provided within the washing tank is disclosed in Japanese Patent Application Laid-Open No. 60-58195 and Japanese Utility Model Publication No. 51-9816.
It was proposed in the Publication No.

[Problem that the invention seeks to solve]

However, these conventional techniques are only proposals based on the principle of providing a second auxiliary tank equipped with a second blade within the washing tank, and have many drawbacks in concrete implementation as shown below. was.

1. With regard to the fixing method and ease of attachment and detachment of the second tank, there is no clear guideline for positioning it in the horizontal direction, and the ease of attachment and detachment is poor. Also, as a series of models, there is a model without a second tank, and the traces of the fixing part remain, so it has no commercial value.

2. When rinsing with water, an overflow port is provided in the middle, but because of this, the effective depth of the second tank is small, and the washing capacity is small.In addition, the mold structure is complicated due to the sliding method when manufacturing the mold. Become.

Furthermore, the amount of water that overflows cannot be visually confirmed, and there is no guideline for the flow rate.

3. If the axes of the first and second blades are not aligned, the rotation will be discontinuous and not only will the specified performance in terms of cloth movement and cleaning performance not be obtained, but also magnetic or fluid In this type of connection, the transmitted torque is relatively small, and there is a large limit to the cleaning action of the second blade.

4. The internal volume of the second tank is relatively smaller than that of the first tank and the capacity when washing the upper and lower parts at the same time. Therefore, the cleaning power in the second tank is limited, and satisfactory cleaning performance cannot be obtained when cleaning stubborn stains on white sports socks or small items such as work gloves.

5. The wastewater in the second tank is drained into the first tank, so if you are washing relatively clean items in the first tank and items with a lot of dirt in the second tank, the washing liquid I am dissatisfied with the reuse of the materials.

6. When the second tank was removed, water dripped from the outer wall and wet the floor.

The purpose of the present invention is to eliminate the drawbacks of the conventional technology as described above, and to make it possible to completely wash and rinse items at the same time. The purpose of the present invention is to provide a washing machine that has high cleaning performance to cleanly remove even the most stubborn dirt, has improved handleability from a practical point of view, and can be used immediately.

[Means for solving problems]

The above purpose is to fix the second tank to the first by configuring a separate detachable hanger, forming a pair of U-shaped recesses as overflow ports in the upper flange of the second tank, and A restraining plate that covers the top surface of the tank and is detachable and whose height can be adjusted and fixed in multiple stages is configured, and the holding plate connects the coupling between the upper end of the hollow cylindrical body of the first blade and the lower end of the second blade shaft. This is achieved by constructing male and female splines, guiding the drainage channel of the second tank to the open external drainage channel of the first tank, and configuring a removable water tray on the bottom of the second tank. .

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, taking a two-tank washing machine as an example.

In Fig. 1, the two-tank washing machine has an outer frame 1 made of steel plate,
A base 2 made of synthetic resin on which this outer frame 1 is placed, and an outer frame 1
A washing tank 3 made of synthetic resin housed inside, a water receiving tank 4 formed integrally with this washing tank 3 and housed in the outer frame 1, a dewatering tank 5 housed inside this water receiving tank 4, and a washing tank 3. A main blade 6 provided at the center of the bottom of the tank 3, a washing motor 7 serving as a drive source for the main blade 6, and a dehydration motor 8 serving as a drive source for the dehydration tank 5.
A washing and rinsing device is provided above the outer frame 1 using the upper opening edges of the washing tank 3 and the water receiving tank 4.

It is equipped with an operation panel 9 for controlling various operations such as dehydration and drainage.

A reducer 11 having a driven pulley 10 pivotally supported at its lower end is fixed to the center bottom of the washing tank 3, and the main blade 6 has a hollow cylindrical body 12 projecting upwardly at its center on its output shaft at its upper end. is pivotally supported, and a cap 13 is attached to the upper end of the hollow cylindrical body 12.
is installed.

Further, the driven pulley 10 is connected by a belt 15 to a driving pulley 14 which is pivotally supported above the washing motor 7, and the rotation of the washing motor cape tuff is transmitted to the main blade 6 to perform normal washing and rinsing operations. It looks like this.

On the other hand, above the washing tank 3, as shown in FIG. 3 by coming into contact with hangers 21 which are removably provided with set screws 20 on the lower surface of the flange 18 and the lower surface of the left end of the water receiver cover 19 provided to cover the upper opening of the water receiver tank 4. Thus, the downward direction and rotational direction are fixed. Moreover, on the upper flange 17,
As shown in FIG. 4, U-shaped notches 22 are partially opposed to each other, and a handle 23 used for attaching, detaching, or moving the second tank 16 is pivotally supported.

A bearing 25 for pivotally supporting the second blade 24 is fixed to the center bottom of the second tanks 1 and 6 by a nut 26, and a bearing 25 is inserted into the cap 13 to support the main blade 6 at its lower end. In order to transmit rotation, the lower end of the coupling 27 is pivoted so as not to protrude from the lower end of the second tank, as shown in FIG. The shape of the connecting portion between the cap 13 and the coupling 27 is constituted by a spline formed on the inner circumferential surface of the cap 13 and the outer circumferential surface of the coupling 27, as shown in FIGS. The upper end of the spline convex part of the cap 13 and the coupling 2
The lower end of the spline convex portion 7 is configured to terminate with a smooth slope.

The number of teeth of this spline is set to the maximum within a range that ensures the torsional strength of the tooth base against the transmitted torque.

The connection between the cap 13 and the hollow cylinder 12 is also similar to that described above. Further, below the inner circumference of the second tank 16,
A large number of protrusions 28 are formed to promote friction during washing.

Next, a drainage mechanism section 29 is formed in one section of the second tank 16, and the drainage from the drain port 30 at the bottom is not drained into the washing tank 3 through a connecting hose 31, as shown in FIG. The structure is as follows. Inside the drainage mechanism section 29, there is a drainage valve 32.
Valve push spring 33. An operating lever 34 is provided, and by moving the operating lever 34 up and down, drainage can be switched, and these are covered by a drainage filter 35.

Next, a plurality of recesses 36 are formed on the walls of the drain filter 35 and the second tank 16, and a restraining plate 38 having a through hole 37 in the center is provided to engage with the recesses 36. Holding board 3
Similar to the second tank 16, a large number of protrusions 39 are provided on the lower surface of the tank 8, and a fixed protrusion 40 and a movable protrusion 41, which are integrally formed with the restraining plate 38, are provided on the outer periphery at opposing positions. , one movable protrusion 41 is configured to be movable in the front-rear direction by an operating hook 42 and an operating spring 43.

Furthermore, as shown in FIG. 9, the second 4'! A water receptacle ff144 is fixed to the bottom surface of the j16, the center of which protrudes upward, and the outer periphery of which has an upward flange.

With the above configuration, the operation of attaching the second tank 16 and washing it will be explained.

First, hold the handle 23 and set the second tank 16 in the washing tank 3. At this time, the hanger 21 and the upper flange 17 of the second tank 16 are set as a guide for positioning. As a result, the coupling 27 is inserted into the cap 13, and since the rotational resistance of the second blade 24 is extremely small, the second blade 24 is guided by the smooth slopes of both spline protrusions as described above, and the second blade 24 rotates. This will result in smooth engagement. Furthermore, even if the centers of both spline convex portions coincide, they can be smoothly engaged by lightly rotating the second blade 24. Next, the water supplied from the water supply outlet 45 provided at the bottom of the operation panel 9 flows into the notch 22.
Water is supplied into the second tank 16 from there. After this, operation panel 9
The washing action is performed by setting the upper water flow select switch 46 and turning the washing timer 47. At this time, the water flow selection switch 46 is set to the optimum one depending on the size and shape of the main blade 6 and the second blade 24, the size and shape of the washing tank 3 and the second tank 16, the type of items to be washed, etc. Water flow can be selected. Also, the second tank 16
Since the rotation resistance of the object to be washed differs between the upper and lower parts due to the large number of protrusions 28 provided on the lower inner periphery, it is facilitated to change the upper and lower parts of the object to be washed, thereby reducing uneven washing. Also, when rinsing with water, water is poured from one side of the notch 22 at the top of the second tank 16, and water overflows from the other side. Therefore, on the water injection side, the backflow of fresh water injected can be prevented and water wastage can be prevented.Also, on the overflow side, overflow water is rectified, so not only can the guideline for adjusting the amount of water injection be clear, but also the guideline for wasting water can be prevented. It will also happen.

Furthermore, the notch 22 can also improve the rigidity, design, and commercial value of the upper flange 17. Furthermore, as shown in FIG. 10, the notch 22 also serves as a handhold when grasping the handle 23, thereby improving the ease of handling.

Next, stains that cannot be removed with regular washing 1. For example, white socks for exercise, dirt stains on children's clothing 9. Stubborn stains such as work gloves, etc., are generally removed by hand washing, which takes a lot of effort. It is. In contrast, the holding plate 38 of the present invention is
By setting the clothes in the tank 1G, as shown in FIG.
9. Further, due to the large number of protrusions 28 of the second tank 16, it is continuously subjected to mechanical effects such as friction, bending and stretching, and @strike, so that it always remains on the surface of the second blade 24. Therefore, the effectiveness of the cleaning action in conventional washing machines is greatly improved.

FIG. 12 shows the cleaning effect of the present invention. This also shows the magnitude of the cleaning effect of the present invention. Further, the cleaning power can be further improved by optimally selecting the water flow select switch 46 described above and adjusting the height of the holding plate 38 to the optimum height according to the amount of clothes. When the holding plate 38 is not used, the operating hook 42 is attached to the upper flange of the washing tank 3 as shown in FIG. By using it and hanging it, there is no need to worry about getting the floor wet, and the ease of handling is further improved.

In addition, when placing the second tank 16 on the floor etc., the coupling 2
Since the lower end of the coupling 27 is located above the lowest surface of the second tank 16, the stability of the second tank 16 is good, and the lower end of the coupling 27 may be damaged or the bearing 25 may be damaged due to excessive external force. Since such defects can be prevented, reliability is improved.

Moreover, the drainage in the second tank 16 is 1. Washing tank 3 with separate pipe
Because the structure is such that no water is drained inside, the lower washing tank 3
Even if you want to wash items that are relatively clean inside,
Since the washing liquid is not contaminated more than necessary, it is possible to reuse the washing liquid, resulting in a large water saving effect. Furthermore, as shown in FIG. 14, the main body drain pipe 45 is connected in the middle, and although the details are not shown, depending on the rotation angle of the cock switching knob 46 on the operation panel 9, the water can be drained only from the washing tank 3 or only the second tank 16. .

It is possible to select and switch between simultaneous drainage on both sides.

This reduces the number of external drainage hoses to one, improving ease of handling. Furthermore, FIG. 15 shows the drainage from the second tank 16 being guided into the water receiving tank 4. This simplifies the configuration of the exhaust pipe, which can reduce costs.

Further, as shown in FIG. 16, when the second tank 16 is removed and placed on the floor while overflowing water adheres to the outer wall during washing or rinsing, the water tray 44 will catch these water droplets. There is no need to worry about getting the surface wet, improving ease of handling.

In recent years, washing machines are often placed indoors as well as outdoors, and are sometimes installed on carpets or carpets, so getting the floor wet is a big problem. Furthermore, as shown in FIG. 17, by making the water tray 44 separate, it can be removed with water droplets still attached when washing and rinsing are performed simultaneously in the lower washing tank 3 and the second tank 16. However, by placing it on a separate water tray 28, it is possible to prevent the place where it is placed from getting wet with water, thereby further improving the ease of handling.

Further, according to the present invention, since the lower washing tank 3 and the upper second tank have completely independent washing functions, the washing
Not only can you rinse each part independently, but you can also wash them top and bottom.
Rinsing can be done simultaneously, and items that are washed two or three times in a row can be processed at the same time, which is a great benefit for housewives who are busy with daily housework and childcare. Further, according to the present invention, when washing only small items such as underwear and handkerchiefs, it is possible to wash them not only in the large-capacity washing tank 3 but also in the relatively small-capacity second tank 16. Not only is the detergent highly effective in saving water and water, but it can also be used in a variety of ways, such as containers for stubborn stains, containers for those with glue, and baskets for washing.

Although the present invention has been described above using a two-tank type mulch machine as an example, a fully automatic mulch machine with a single-bottom bottom can have similar effects.

〔Effect of the invention〕

As described above, according to the present invention, the drawbacks of the prior art are solved, and by providing a water tray that can be attached to the bottom of the second tank, water overflowing during washing or rinsing can be transferred to the second tank. Even if it is removed while still attached to the tank and placed on the floor, the floor will not get wet and operability can be improved.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a two-tub washing machine showing an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, and Fig. 3 is a perspective view of a hanger for positioning the tubs shown in Fig. 2. 4 is an upper perspective view of the second tank, FIG. 5 is a longitudinal sectional view of the second tank showing an embodiment of the present invention, and FIG. 6 is a diagram showing the structure of the second tank and the hollow cylinder. An enlarged cross-sectional view of the connection part, FIG. 7 is a cross-sectional view taken along the line A-A in FIG. 6, and FIG.
Figure 9. 10, 11, 13, 14, and 15 are enlarged views of the main parts of FIG. 1 showing an embodiment of the present invention, and FIG. 12 is a diagram showing the cleaning power of the present invention. FIG. 16 is an enlarged sectional view of the main part of FIG. 1, and FIG. 17 is a longitudinal sectional view of a second tank having a water tray of the present invention. 1st mouth 4th prisoner Y50 $t5EJ Kaya t'l/n

Claims (1)

[Claims] 1. A washing machine having a structure in which a main blade protruding from the bottom of a washing tank is supported by a bearing, and a second washing tank, which is slightly smaller than the opening, is provided at the upper opening of the first washing tank. The second blade, which is suspended and supported in a watertight manner at the bottom of the second washing tank, is driven by the tip of the hollow cylindrical body of the main blade, and This washing machine is capable of performing washing work simultaneously in a washing tank and a second washing tank located above, and is characterized in that a dish-shaped water droplet receptacle can be attached to the bottom of the second washing tank.