JPH0520309Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] 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 was provided in the washing tank was 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 attempts to solve]

However, these conventional techniques are merely proposals based on the principle of providing a second washing tank provided with a second agitating body within the washing tank, and do not take into consideration the specific configuration.

The object of the present invention is to provide a device that allows small items to be washed according to the amount to be washed, allows stubborn stains to be removed, and allows easy loading and unloading of small items to be washed.

[Means for solving problems]

The present invention consists of a first washing tank with a deep bottom, a second washing tank with a shallow bottom that is detachably placed above the first washing tank, and a second washing tank with a shallow bottom that can be freely rotated at the inner bottom of the first washing tank. and a second stirring body rotatably installed at the inner bottom of the second washing tank. A washing machine in which the side and the lower side of the second stirring body are removably connected via a connecting member, and the washing machine is provided with a holding plate that presses the items to be washed in the second washing tank from above, and the inner wall surface of the second washing tank is A plurality of recesses are formed in opposing positions, and a plurality of recesses are provided vertically apart from each other, a reinforcing outer circumferential ring formed to fall down is provided on the outer periphery of the restraining plate, and a vertical reinforcing ring is provided in the center of the restraining plate. A reinforcing inner circumferential ring is provided which is formed to descend, and the inner circumferential side of this reinforcing inner circumferential ring is used as an inlet for washing items, and a fixing protrusion that engages with the recess is provided on the outer circumference of the restraining plate. The present invention is characterized in that a movable protrusion is provided on the outer periphery of the holding plate on the opposite side, which slides in the inward and outward directions and engages with the recess.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings, taking a two-tank washing machine as an example.

In Figure 1, the two-tank washing machine consists of an outer frame 1 made of steel plate, a base 2 made of synthetic resin on which the outer frame 1 is placed, and a washing tank made of synthetic resin housed in the outer frame 1. 3 (first washing tank), a water receiving tank 4 formed integrally with this washing tank 3 and housed within the outer frame 1,
A dehydration tank 5 housed in the water receiving tank 4, a main blade 6 (first stirring body) 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, and a drive for the dehydration tank 5. The dewatering motor 8 serves as a water source, and the operation panel 9 is provided above the outer frame 1 using the upper opening edges of the washing tank 3 and the water receiving tank 4 to control various operations such as washing, rinsing, spin-drying, and draining. We are prepared.

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.
Further, the driven pulley 10 is connected to the washing motor 7.
A drive pulley 14 and a belt 15 are pivotally supported above the
The rotation of the washing motor 7 is transmitted to the main blade 6 to perform normal washing and rinsing operations.

On the other hand, above the washing tank 2, as shown in FIG. A hanger 21 is detachably provided with a set screw 20 on the lower surface of the inner flange 18 for preventing water scattering, and 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. Due to the contact, the downward direction and rotational direction are fixed as shown in FIG. 3 as well. Further, on the upper flange 17, as shown in FIG. 4, there is a U-shaped notch 22 at a partially opposing position, which is used when attaching/detaching or moving the second washing tank 16. A handle 23 is pivotally supported.

A bearing 25 for pivotally supporting the second blade 24 (second stirring body) is provided at the center bottom of the second washing tank 16.
is fixed by a nut 26, and a coupling 27 is inserted into the cap 13 to transmit the rotation of the main blade 6.As shown in FIG. It is pivoted without any protrusions. The shape of the connecting portion between the cap 13 and the coupling ring 27 is constituted by a spline formed on the inner circumferential surface of the cap 13 and the outer circumferential surface of the coupling ring 27, as shown in FIGS. 6 and 7. The upper end of the spline protrusion of the cap 13 and the lower end of the spline protrusion of the coupling ring 27 are configured to terminate with a smooth slope so that the insertion of the cap 27 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 cylindrical body 12 is also similar to that described above. Also, the second washing tank 1
A large number of protrusions 28 are formed on the lower inner circumference of 6 to promote friction during washing.

Next, a drainage mechanism section 29 is formed in one section of the second washing tank 16, and the drainage from the drain port 30 at the bottom is drained into the washing tank 3 through a connecting hose 31, as shown in FIG. The configuration is such that it does not. Inside the drainage mechanism section 29, there are a drainage valve 32 and a valve pressing spring 3.
3. An operating lever 34 is provided, and the operating lever 34
Drainage can be switched by raising and lowering the drain filter 35, and these are covered by a drainage filter 35.

Next, recesses 36 are formed in both wall surfaces of the drain filter 35 and the second washing tank 16. A plurality of recesses 36 are provided at opposing positions and spaced apart from each other in vertical rows. The holding plate 38, which is attached to the second washing tank 16 using this recess 36, has the following configuration.

A reinforcing outer circumferential ring 38' is provided on the outer periphery of the restraining plate 38 and is formed so as to fall down. On the inside, a reinforcing inner circumferential ring 38'' is also formed so as to fall down.The inner periphery of the reinforcing inner circumferential ring 38'' serves as a slot 37 for putting in and taking out small items to be washed.

A fixing protrusion 40 is formed on the outer peripheral side of the holding plate 38 to engage with the recess 36 of the second washing tank. Retainer plate 3 on the opposite side of this fixing protrusion 40
A movable protrusion 41 is provided on the outer peripheral side of 8 . This movable protrusion 41 is provided so as to slide in the inner and outer directions of the restraining plate 38 and engages with the recess 36 . A hook 42 is provided on the movable protrusion 41 to allow the movable protrusion 41 to slide. An operating spring 43 is provided at the inner end of the movable protrusion 41 and pushes the movable protrusion 41 outward. Due to this pressing, the movable protrusion 41 is held in engagement with the recess 36.

Furthermore, as shown in FIG. 9, a second washing tank 16
A water receiving tray 44 is fixed to the bottom surface of the container, the center of which projects upward, and the outer periphery of which has an upwardly directed flange.

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

First, the second washing tank 16 with the handle 23 is set in the washing tank 3. At this time, the hanger 21 and the upper flange 17 of the second washing tank 16 are set as a guide for positioning. As a result, the coupling ring 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 rotates. They will mesh smoothly. Furthermore, even if the centers of both splint protrusions 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 is supplied into the second washing tank 16 from the notch 22. Thereafter, by setting the water flow select switch 46 on the operation panel 9 and turning the wash timer 47, the washing action is performed. At this time, water flow select switch 4
6 is the size and shape of the main blade 6 and the second blade 24, the size of the washing tank 3 and the second washing tank 16,
The optimal water flow can be selected depending on the shape, type of items to be washed, etc. Also the second
Numerous protrusions 28 provided on the lower inner circumference of the washing tank 16
Since the rotational resistance of the items to be washed differs between the upper and lower parts, it is promoted to change the top and bottom of the items to be washed, reducing uneven washing. When rinsing with water, water is poured from one side of the notch 22 at the top of the second washing tank 16, and water overflows from the other side. Therefore, on the water injection side, the backflow of the injected fresh water can be prevented, preventing water wastage.Also, on the overflow side, overflow water is rectified, which not only provides a clear guideline for adjusting the injection amount, but also provides a guideline for wasted water. 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 by regular washing, such as stubborn stains on white sports socks, dirt on children's clothing, work gloves, etc., are generally removed by hand washing, which takes a lot of effort. This is the reality. In contrast, by operating the operating hook 42 of the holding plate 38 of the present invention, one movable protrusion 41 is recessed, the other fixed protrusion 40 is inserted into the recess 36, and the opposite recess 36
By inserting the movable protrusion 41 into the operation spring 4
The restraining plate 38 is fixed by the elastic force of 3. By setting the clothes in the second washing tank 16, the clothes are washed between the second blades 24 and the holding plate 38 as shown in FIG.
Due to the large number of protrusions 39 on the second washing tank 16 and the large number of protrusions 28 on the second washing tank 16, the second blades 24 are continuously subjected to mechanical effects such as friction, bending and stretching, and impact, so that the second blades 24 always remain on the surface. 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 holding plate 38 to the optimum height according to the amount of clothing. When the holding plate 38 is not used, the upper end flange of the washing tank 3 is used as shown in FIG.
6 by using the operating hook 42 on the upper flange 17, there is no need to worry about getting the floor wet, and the ease of handling is further improved. In addition, since a clothing inlet 37 is formed in the center of the holding plate 38, it is possible to put in and take out clothes without having to attach or remove the holding plate 38 one by one, thereby improving handling.

Furthermore, so that the inside of the restraining plate 38 can be seen through,
By using a semi-transparent material, it is possible to observe the movement of the fabric inside, which improves ease of handling, product value, and
It will improve the design.

In addition, when the second washing tank 16 is placed on the floor or the like, the lower end of the coupling ring 27 is located above the lowest surface of the second washing tank 16, so the stability of the second washing tank 16 is good, and the coupling This prevents problems such as damage to the lower end of the bearing 27 or damage due to excessive external force being applied to the bearing 25.
Improved reliability.

In addition, the drainage in the second washing 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 lower washing tank 3. Also, since it does not contaminate the washing liquid more than necessary, it is possible to reuse the washing liquid.
Great water saving effect. Furthermore, as shown in FIG. 14, it is connected in the middle of the main body drainage pipe 45, and depending on the rotation angle of the switch switch knob 46 on the operation panel 9, although the details are not shown, the water can be drained only from the washing tank 3 or from the second washing tank 16. It is possible to select between draining water only or draining both at the same time. This reduces the number of external drainage hoses to one, improving ease of handling. Furthermore, the first
FIG. 5 shows how the waste water from the second washing tank 16 is 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 washing tank 16 and the second washing tank 16 is removed and placed on the floor, the water receiving tray 44
Since these water droplets can be caught by the holder, there is no need to worry about getting the floor wet, improving ease of handling. Furthermore, the 17th
As shown in the figure, by making the water tray 44 separate, it can be washed and rinsed in the lower washing tank 3 and the second washing tank 16 at the same time, even if it is removed with scattered water droplets still attached. 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 washing tank have completely independent washing functions, not only washing and rinsing can be performed independently, but also washing and rinsing can be done in the upper and lower parts. This is a great benefit for housewives who are busy with daily household chores and child-rearing, as it is possible to wash items at the same time, which previously had to be washed two or three times in a row. . Furthermore, 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 washing tank 16 instead of washing them in the large capacity washing tank 3. Not only is it highly effective in saving water and detergent, but it can also be used in a variety of ways, including as a container for stubborn stains, a container for gluing, and a basket for washing.

Although the present invention has been explained above using a two-tank type washing machine as an example, the same effect can be obtained in a single-tank type fully automatic washing machine.

[Effect of idea]

As described above, the present invention includes a first washing tank with a deep bottom, a second washing tank with a shallow bottom that is removably placed above the first washing tank, and a first washing tank with a shallow bottom.
A cylindrical body that has a first agitator rotatably provided at the inner bottom of the washing tank and a second agitator rotatably provided at the inner bottom of the second wash tank, and stands up in the center of the first agitator. A washing machine is provided in which the upper side of the cylindrical body and the lower side of the second stirring body are removably connected via a connecting member, and the washing machine is provided with a holding plate that presses the items to be washed in the second washing tank from above. , a plurality of recesses are formed in opposing positions on the inner wall surface of the second washing tank, and a plurality of recesses are provided vertically and spaced apart from each other, and a reinforcing outer circumferential ring formed to fall down is provided on the outer periphery of the restraining plate. A reinforcing inner circumferential ring formed to fall down is provided in the center of the holding plate, and the inner circumferential side of this reinforcing inner circumferential ring is used as an inlet for washing items, and the fixing protrusion that engages with the recess is connected to the holding plate. The washing machine is characterized in that a movable protrusion is provided on the outer periphery of the holding plate, and on the outer periphery of the holding plate opposite to the fixed protrusion, the movable protrusion slides in the inward and outward directions and engages with the recessed portion.

This configuration has the following advantages.

(1) By changing the mounting height position of the holding plate, it is possible to wash small items according to the amount of items to be washed.

(2) There is a slot in the center of the holding plate, so you can put in and take out items to be washed with the holding plate attached.

(3) Since there are reinforcing inner and outer rings on the outer and inner peripheries of the restraining plate, the restraining plate is strong and difficult to bend. When the items to be washed are pressed from above and stirred and washed using the second agitating body, the holding plate does not bend, so that the washing can be done well.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a washing machine showing an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the second tank, Fig. 3 is a perspective view of the mounting part of the second tank, and Fig. The figure is a perspective view of the washing machine, Figures 5 to 11 are longitudinal cross-sectional views of the second tank, Figure 12 is data on cleaning power, Figure 13 is a vertical cross-sectional view with a restraining plate, Figures 14 to 15 are the second part of the washing machine.
FIGS. 16 to 17 are longitudinal sectional views of the second tank. 3...Washing tank, 6...Main blade, 12...Hollow cylindrical body, 13...Cap, 16...Second tank, 2
4...Second blade, 27...Coupling, 36...
... recess, 37 ... input port, 38 ... holding plate, 39
... protrusion, 40 ... fixed projection, 41 ... movable projection, 42 ... operation hook.

Claims (1)

[Scope of Claim for Utility Model Registration] A first washing tank with a deep bottom, a second washing tank with a shallow bottom that is removably placed above the first washing tank, and an inner part of the first washing tank. The first stirring body is rotatably provided at the bottom of the second washing tank, and the second stirring body is rotatably provided at the inner bottom of the second washing tank. A washing machine in which the upper side of the cylindrical body and the lower side of the second agitator are removably connected via a connecting member, comprising a holding plate that presses the items to be washed in the second washing tank from above; A plurality of recesses are formed in opposing positions on the inner wall surface of the tank, and a plurality of recesses are provided in vertical rows, and a reinforcing outer circumferential ring formed to fall down is provided on the outer periphery of the restraining plate. In the center, there is a reinforcing inner ring formed so as to fall down.
The inner periphery of this inner reinforcing ring serves as an inlet for washing items, and a fixed protrusion that engages with the recess is provided on the outer periphery of the holding plate, and the outer periphery of the holding plate on the opposite side of the fixed protrusion is slidable in the inward and outward directions. and a movable protrusion that engages with the recess.