JPS63302890A - 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, Publication, and Utility Model Publication No. 51-981.
This was proposed in Publication No. 6, etc.

[Problem that the invention seeks to solve]

These conventional technologies have a second
This proposal was only based on the principle of providing a second auxiliary tank with blades, but it had many drawbacks in practical implementation, as described below.

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 case, the transmission 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 washing stubborn stains on white sports socks or small items such as work gloves.6 5. The wastewater in the tank is drained into the first tank, so if you are washing items with relatively little dirt in the first tank and items with a lot of dirt in the second tank, it is important to reuse the washing liquid. remains dissatisfied.

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

7. The first tank and the second tank have different washing capacity (2), the shape of the blades, the shape of the tank, the type of clothing, etc., so the water flow in the first tank and the water flow in the second tank are completely different. Become something. Therefore, the water flow switching on the operation panel will be different from the actual water flow state.

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 that has a high cleaning performance that can cleanly remove even dirt, and is practical and can be implemented 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. It is composed of male and female splines, and has a structure that leads the drainage channel of the second tank to the open external drainage channel of the first tank, and a water tray that is removably attached to the bottom of the second tank. Either the water flow conversion switch is installed separately on the first tank circumference and the second tank circumference, or the shape and dimensions of the blades of the first and second tanks, the rotation speed, and the forward rotation stop-reverse rotation are integrated. This is achieved by optimizing the time cycle and making the strength of the washing action in the first tank and the second tank the same.

〔Example〕

Below, an embodiment of the present invention will be explained 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 a 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, a dehydration motor 8 serving as a drive source for the dehydration tank 5, a washing tank 3 and a water receiving tank 4 above the outer frame 1. 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 10 is connected by a belt 15 to a drive pulley 14 that 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 nut 26, and a bearing 25 is inserted into the cap 13 at the lower end to prevent rotation of the main blade 6. In order to transmit the information, the lower end of the coupling 27 has a shape that connects the second lug 13 and the coupling 27 to the inner peripheral surface of the cap 13 and the cup as shown in FIGS. It is composed of a spline formed on the outer peripheral surface of the ring 27, and is connected to the coupling 2 to the cap 13.
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 so that the insertion of the cap 7 and the engagement of the spline part are smooth.

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, 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 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 first tank 3 and the second tank 16 differ in the size and shape of the main blade 6 and the second blade 24, and in the shape and volume of the tank inner body, and the internal protrusion ribs. Moreover, since the types of clothes to be thrown in are different, the water flows in the first tank 3 and the second tank 16 are different. In other words, even if the first tank 3 has a strong water flow, the second tank 16 has only a standard water flow, which causes a problem. Therefore, a water flow selector switch 50 for the first tank 3 and a water flow selector switch 51 for the second tank 16 are provided separately to enable detailed selections that suit the water flow. Figure 18).

Alternatively, by optimizing the shape, dimensions, and rotational speed of the blades in the first and second tanks, and the time cycle of forward rotation and stop-reverse of the washing timer 47, it is possible to It is also possible to use a common water flow in the tanks 16, and share the water flow changeover switch 46. 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, 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 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 also serves as a handhold when grasping the handle 23, improving ease of handling.

Next, stains that cannot be removed by regular washing, such as stubborn stains on white athletic socks, dirt on children's clothing, and work gloves, are generally removed by hand washing, which takes a lot of effort. This is the reality. On the other hand, by setting the holding plate 38 of the present invention in the second tank 16, the clothes can be separated by the second blade 24 and the numerous protrusions 39° of the holding plate 38, as shown in FIG. Due to the numerous protrusions 28 of the tank 16, it is continuously subjected to mechanical effects such as friction, bending and stretching, and WI impact, so that
continues to exist on the surface of the 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. Furthermore, the cleaning power can be further improved by optimally selecting the aforementioned water flow select switch 46 and adjusting the height of the restraining plate 38 to the optimum height according to the amount of clothing. When the holding plate 38 is not used, the upper flange portion of the washing tank 3, as shown in FIG.
Also, if water drips, please use the second tank 1 (not shown).
By hanging the device on the upper flange 17 of the device 6 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, the drainage in the second tank 16 is configured so that it is not drained into the washing tank 3 through a separate pipe, so if you want to wash relatively clean items in the washing tank 3 below. Even if the washing liquid is washed, the washing liquid is not contaminated more than necessary, so 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.

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 the device is removed with water scattered during rinsing at the same time still attached to it, by placing it on a separate water tray 28, the place where it is placed can be prevented from getting wet with water, so that 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.
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 in the relatively small capacity second tank 16 instead of washing them in the large capacity washing tank 3. Not only is this water-saving 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.

〔Effect of the invention〕

As described above, according to the present invention, the drawbacks of the prior art are solved, and the water flow in the first tank 3 and the water flow in the second tank 16 are different, so that the user can This solves the problem of not being able to choose the water flow. Furthermore, by separately providing a water flow selector switch around the second tank, the user has the advantage of being able to precisely select the optimal water flow suitable for the clothes. Alternatively, the water flow in the first and second tanks can be made common by appropriately adjusting the shape, dimensions, rotation speed, and time cycle of the impeller in the first and second tanks. By doing this, it is possible to integrate the water flow selection switch into a single water flow selection switch, and it is possible to create a configuration that does not require separate water flow selection switches. According to this, the complexity of the water flow selection switch can be eliminated and costs can be reduced. There are advantages.

[Brief explanation of drawings]

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. 10, Fig. 11, Fig. 13, Fig. 14, Fig. 15,
16 and 17 are enlarged views of main parts of FIG. 1 showing one embodiment of the present invention, and FIG. 12 is a view showing the cleaning power of the present invention.
FIG. 8 is an enlarged view of the main part showing the water flow switching section of the present invention. 3...First tank, 6...Main blade, 16...Second tank. 24...Second blade, 46...Water flow selection switch,
47...Washing timer, 50...Water flow switching unit around the first tank 1c3 3, Ear + #1f? c-i*q %Wro?
Mouth No. 40 No. 5 + 21 Hair 6 Mouth No. 14 Day 1 +5 i4 No. 15 Fig. 160 V'J1'V Mouth

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 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 supported by a watertight bearing at the bottom of the second washing tank is driven by the hollow cylindrical tip of the main blade, so that the first In a device in which washing work can be performed simultaneously in the upper washing tank and the upper second washing tank, in addition to selecting the operation cycle of the main blade according to the type of clothes in the first washing tank, the second washing tank This washing machine is characterized by being equipped with a water flow selection switch that allows you to select the operating cycle according to the type of clothing you are washing. 2. In the thing described in claim 1, the first,
By optimizing the shape, dimensions, and rotational speed of the second blade and the time cycle of normal rotation-pause-reverse rotation, it is possible for both the first washing tank and the second washing tank to have the same strength of washing action. This washing machine is characterized by being able to select a common water flow depending on the type of clothing.