JPS63302894A - 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 the conventional coupling, 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. Since the waste water in the second tank is drained into the first tank,
When relatively clean items are washed in the first tank and relatively dirty items are washed in the second tank, reuse of the washing liquid remains unsatisfactory.

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 tank by constructing a separate detachable hanger, forming a pair of U-shaped four parts on the top flange of the second tank as an overflow port, and fixing the second tank to the first tank. 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-bottom washing machine as an example.

In Fig. 1, the two-tank bottom 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
Washing NJ3 made of synthetic resin that is stored inside and this washing.
Water receivers 4 and 1 formed integrally with 413 and housed within the outer frame 1, this water receiver 4+! ? A dehydration tank 5 stored in 4,
A main blade 6 provided at the center of the bottom of the washing tank 3, a washing motor 7 serving as a drive source for the main blade 6, a dehydration motor 8 serving as a drive source for the dehydration tank 5, a washing tank 3 and a water receiving tank above the outer frame 1. 4
Washing and rinsing is provided using the upper opening edge of the .

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 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. Lower surface of flange 18.

and a hanger 21 which is removably provided with a set screw 20 on the lower surface of the left end of the water receiving cover 19 provided to cover the upper opening of the water receiving tank 4, thereby lowering and lowering the water receiving tank 4 as shown in FIG. The direction of rotation is fixed. Further, on the upper flange 17, as shown in FIG. 4, there is a U-shaped notch 22 at a partially opposing position, and a handle 23 used when attaching, detaching, or moving the second tank 16.
is pivoted.

A bearing 25 for pivotally supporting the second blade 24 is fixed to the center bottom of the second tank 16 by a nut 26, and a bearing 25 is inserted into the cap 13 at the lower end to prevent rotation of the main blade 6. To enable transmission, 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. What is the shape of the connecting portion between the cap 13 and the cap ring 27?

As shown in FIGS. 6 and 7, it is composed of splines formed on the inner circumferential surface of the cap 13 and the outer circumferential surface of the coupling 27, and the insertion of the coupling 27 into the cap 13 and the engagement of the spline portion are smooth. As such, the upper end of the spline protrusion of the cap 13 and the lower end of the spline protrusion of the coupling 27 are 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 3o 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.
Interposed 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 on the outer periphery, a fixing protrusion 40. and a movable protrusion 41 are provided, and 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, a water tray 44 is fixed to the bottom surface of the second tank 16, the center of which projects 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 can be set as a guide for positioning.
The horizontal positioning of the second tank is facilitated. Furthermore, the color of the hanger is changed to the inner flange 18 and the water receiver cover 19. By changing this, the guideline for positioning becomes clearer and the operability is further improved. Furthermore, since the relationship between the upper parts B1 and Bt of the hanger shown in FIG. 3 is Bt>Bx, it goes without saying that the upper flange 17 can be easily inserted. This allows the coupling 27 to fit inside the cap 13.
is inserted, and since the rotational resistance of the second blade 24 is extremely small, as described above, it is guided by the smooth slopes of both spline protrusions, and the second blade 24 rotates and meshes smoothly. Furthermore, even if the centers of both spline convex portions coincide, they can be smoothly engaged by lightly rotating the second blade 24. Next, water supplied from the water supply outlet 45 provided at the bottom of the operation panel 9 is supplied into the second tank 16 from the notch 22 . 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.

Further, 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 circumference of the second tank 16, the rotational resistance of the object to be washed is promoted, and uneven washing is reduced. 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.
Wasted water can be prevented, and since overflow water is rectified on the overflow side, it not only makes it clear how to adjust the water injection amount, but also serves as a guide to waste water. Furthermore, the notch 22 can also improve the rigidity, design, and commercial value of the upper flange 17. Furthermore, as shown in FIG.
It also serves as a hair removal lever to grasp, improving handling.

Next, stains that cannot be removed by regular washing (1) For example, stubborn stains such as white athletic socks, dirt on children's clothes, (2) 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 washing tank 3 is used as shown in FIG. 13, and when 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 camp ring 2
Since the lower end of the coupling 27 is on one side of the bottom surface of the second tank 16, the stability of the second tank 16 is good.
Reliability is improved because problems such as damage to the lower end or damage due to excessive external force being applied to the bearing 25 can be prevented.

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 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.

In addition, as shown in FIG. 16, if the water overflowing during washing or rinsing is attached to the outer wall of the second tank 1.6 and is removed and placed on the floor, the water tray 44 will catch these water droplets. Therefore, there is no need to worry about getting the floor wet, and handling is improved. 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, which further improves 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.
It can perform rinsing at the same time, and can process items to be washed at the same time instead of washing them two or three times in a row, which is very effective for housewives who are busy with daily housework and raising 11 children. . 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 bottom washer as an example, the same effect can be obtained in a single-fire, fully automatic washer.

〔Effect of the invention〕

As described above, the present invention eliminates the drawbacks of the prior art and provides a washing machine that can completely wash and rinse in two parts independently or simultaneously, and has improved handling. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a washing machine showing an embodiment of the present invention;
Fig. 2 is a longitudinal sectional view of the second tank, Fig. 3 is a perspective view of the attachment part of the second tank, Fig. 4 is a perspective view of the washing machine, and Figs. 5 to 11 are the same as the second tank. Vertical view of the tank, 1st
Figure 2 is the same cleaning power data, Figure 13 is a vertical cross-sectional view of the second tank with a restraining plate, Figures 14 and 15 are vertical cross-sectional views of the drainage system of the second tank of the washing machine. 16th eup~×
FIG. 17 is a longitudinal sectional view of the second tank as well. 3...Washing tank, 4...Water tank, 6...Main blade,
12...Hollow cylindrical body, 13...Cap, 16...
Second tank, 17... Upper flange, 18... Inner flange, 19... Water receiver cover, 21... Hanger, 2
4...Second feather, 6th 5th

Claims (1)

[Scope of Claims] 1. A washing machine having a structure in which a main blade with a hollow cylindrical body protruding from the bottom of a washing tank is supported by a bearing, and the upper opening of the first washing tank is slightly smaller than this opening. A second washing tank is suspended and supported, and a second blade, which is watertightly supported by a bearing at the bottom of the second washing tank, is driven by the tip of the hollow cylindrical body of the main blade. In a device that allows washing to be carried out at the same time in the main first washing tank and the upper second washing tank, there are mouth flanges of the second washing tank on both the left and right sides of the opening of the first washing tank. A pair of hangers are provided that fit and receive the ends of the mouth flange, and the end of the mouth flange and the hanger are configured to engage only when inserted approximately perpendicularly from above; A washing machine characterized in that the washing tank is prevented from moving in the left-right direction, front-back direction, and rotational direction. 2. In Claim 1, each of the pair of hangers is a flange of the washing tank or an inner flange for preventing water splash provided inside the flange of the washing tank, and the other one covers the upper opening of the dewatering water receiving tank. A washing machine characterized by being fixed to an end flange of a water receiving cover. 3. The washing machine according to claim 1, wherein the hanger has a different color from the inner flange and the water receiver cover. 4. In Claim 1, the pair of hangers is formed integrally with the flange of the washing tank or an inner flange for preventing water splashing provided inside the flange, and the other hanger is formed integrally with the end flange of the water receiver cover. A washing machine featuring