JPS63302889A - 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 barrel in a 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, the washing capacity is small, and the mold structure is also complicated since it requires a sliding method.

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. For this reason, the cleaning power in the second premises 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. To provide a washing machine which has high cleaning performance to cleanly remove even dirt and is practical and can be immediately implemented.

[Means for solving problems]

The above purpose is to fix the second tank to the first by configuring a separate removable hanger, and inserting a pair of U-shaped notches in the top flange of the second tank so that one is overflow and the other is fixed. A restraining plate is formed as a water spout, covers the upper surface of the second tank, and is detachable and whose height can be adjusted and fixed in multiple stages. The coupling at the lower end of the shaft is composed of male and female splines, and the drainage channel of the second tank is configured to lead to the open external drainage channel of the first tank, and a removable water tray is provided at the bottom of the second tank. This is achieved by configuring.

〔Example〕

Embodiments 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 that cuts down this outer frame 1, 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.
The washing tank 3 and the water receiving tank 4 are provided above the outer frame 1 by using the upper opening edges thereof. Wash, rinse.

1 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 1o is connected by a belt 15 to a driving pulley 14 which is pivotally supported above the washing motor 7, so that the rotation of the washing motor 7 is transmitted to the main blade 6 to perform normal washing and rinsing operations. It has become.

On the other hand, above the washing tank 3, as shown in FIG. This is also shown in FIG. 3 by contacting hangers 21 that are removably provided with set screws 2o 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 tank 16 by a neck 1-26, 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 composed of splines formed on the inner peripheral surface of the cap 13 and the outer peripheral 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 4o and a movable protrusion 41, which are integrally formed with a 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 tank 16 has six or more structures in which a water tray 44 is fixed to the bottom surface of the second tank 16, the center of which protrudes upward and the outer periphery has an upward flange. This section explains how to install and wash the product.

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 2.
2 into the second tank 16. Thereafter, by setting the water flow select switch 46 on the operation panel 9 and turning the washing timer 47, the washing action is performed. 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 1
6. Since the rotational 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, backflow of the injected fresh water can be prevented, water wastage can be prevented, fresh water can circulate smoothly, and rinsing efficiency can be improved. Also, since overflow water is rectified on the overflow side, it not only provides a clear guideline for adjusting the amount of water injected, but also serves as a guideline for wasting water.

Furthermore, the notch 22 improves the rigidity and design of the upper flange 17.

It is also possible to improve the product value. Furthermore, as shown in FIG. 10, the notch 22 is used when gripping the handle 23.

The presence of the gap B also serves as a clue and improves handling. Generally, when washing clothes, detergent etc. are left on the hands, so the handle may slip when grasping the handle with wet hands.

Next, stains that cannot be removed with regular washing (1) For example, stubborn stains such as white athletic socks, dirt on children's clothes (9) work gloves, etc., are generally removed by hand washing, which takes a lot of effort. This is the reality. On the other hand, by setting the restraining plate 38 of the present invention in the second tank 16, the clothes are separated by the second blade 24 and the numerous protrusions 39 of the restraining plate 38, as shown in FIG. Due to the large number of protrusions 28 of the tank 16, it is continuously subjected to mechanical effects such as friction, bending and stretching, and impact, 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 upper end flange of the barrel 3 to be washed is used as shown in FIG. 13, and if water drips, the second tank 16 is
By hanging the device on the upper flange 17 using the operating hook 42, 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.

In addition, since the drainage in the second tank 16 is configured so that it is not drained into the washing tank 3 through a separate pipe, there may be cases where you want to wash relatively clean items in the washing tank 3 below. Since the washing liquid is not contaminated more than necessary, the washing liquid can be reused and the water saving effect is large. Furthermore, as shown in FIG. 14, the connection is made in the middle of the main body drain pipe 45, and the details are not shown in the drawings, but depending on the rotation angle of the cock switching knob 46 on the operation panel 9.

It is possible to select and switch between draining only the washing tank 3, draining only the second tank 16, and draining both simultaneously.

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.

Furthermore, 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 of the second tank 16 during washing or rinsing, the water tray 44 can catch these water droplets. There is no need to worry about getting the floor wet, making it easier to handle. Furthermore, as shown in FIG. 17, by making the water tray 44 separate, it is possible to wash in the lower washing tank 3 and the second tank 16.
Even if it is removed with water droplets scattered when rinsing is performed at the same time, by placing it on a separate water tray 28, the place where it is placed can be prevented from getting wet, and the ease of handling is further improved.

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.
Also perform rinsing at the same time.

Conventionally, items that were washed two or three times in a row can be washed 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 in the relatively small capacity second tank 16 instead of washing them in the large capacity washing tank 3. Not only is the water-saving 9-detergent highly effective, but it can also be used to remove stubborn stains.

Glued can be used in a variety of ways, including containers and washing baskets.

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

[Effects of the Invention] As described above, according to the present invention, the drawbacks of the prior art are solved and a simple method is achieved by simply providing a pair of V-shaped notches in the mouth flange of the second tank. Since the configuration can be used as a guideline for wasted water and flow rate, users can save water. Furthermore, by using one side as a water inlet and the other as a water overflow port, backflow of fresh water can be prevented, and the circulation of fresh water can proceed smoothly, improving rinsing efficiency.

In addition, the rigidity, design, and commercial value of the mouth flange can be improved, and in the case of a product having a handle, it also serves as a handle for the handle, greatly improving the ease of handling.

[Brief explanation of the drawing]

Fig. 1 is a vertical 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 second tub. . FIG. 4 is an upper perspective view of the second tank, FIG. 5 is a longitudinal cross-sectional view of the second tank showing an embodiment of the present invention, and FIG. 6 is a connecting portion between the second tank and the hollow cylindrical body. Enlarged sectional view, Figure 7 is taken from A-A in Figure 6.
Line sectional views, FIGS. 8 and 9. Fig. 11, Fig. 13, Fig. 14, Fig. 15, Fig. 16,
FIG. 17 is an enlarged view of the main part of FIG. 1 showing an embodiment of the present invention, FIG. 10 is a top view of the handle portion showing the effect of the present invention, and FIG.
The figure shows the detergency. 16... Second tank, 17... Upper flange, 22...
...Cut 1 LμP7 U〉Si゛Kaya 3 KuchiKaya 4 Roa 5th Roa

Claims (1)

[Scope of Claims] 1. In a washing machine having a structure in which a main blade with a hollow cylindrical body protruding from the bottom of the washing machine is supported by a bearing, and the upper opening of the first washing tank is slightly smaller than this opening. The second washing tank is suspended and supported, and the second blade, which is watertightly supported by a bearing at the bottom of the second washing tank, is driven by the hollow cylindrical tip of the main blade, and is connected to the main body below. Become the first
A pair of U-shaped notches are provided in the mouth flange of the second washing tank, one of which is a water injection part, and the second washing tank is provided with a pair of U-shaped notches. A washing machine characterized in that the other side is an overflowing part. 2. A washing machine according to claim 1, characterized in that the U-shaped notch is constructed so as not to be blocked when the hanger is folded down. 3. A washing machine according to claim 1, characterized in that the U-shaped notch also serves as a weir serving as a guide for the flow rate of water injection.