JPS6110636Y2 - - Google Patents

Description

[Detailed description of the invention] This invention opens the water supply port and the outlet of the pressure chamber at the bottom of the water tank via the circulation pipe above the removable filter case, and supplies water to the filter material inside the filter case. This invention relates to a filter device for an electric washing machine, which has the functions of a filter and a lint filter, which facilitates cleaning of the filter material, improves the filter effect, and improves its durability.

Conventionally, in two-tank washing machines, the filter device for water supply that captures red rust, sand, etc. is housed in the control section that has the water supply port, so the user does not have to take it out and clean it. I can't. In addition, in recent years, a pressure chamber is formed by rotary blades in a recessed area at the bottom of the aquarium, and the outlet of the pressure chamber is opened above the water surface in the aquarium via a circulation pipe, and a lint filter such as a net is installed in the opening. A so-called forced circulation filter device has been devised in which a lint filter material is attached to the washing water and the lint waste generated in the washing water during washing and rinsing is captured by the lint filter material. However, when this type of filter device is installed in a water tank, it protrudes inward from the inner wall, making the entrance to the tank narrow.Furthermore, during use, the lint filter material gets tangled with the laundry cloth, causing it to come off or break. However, it has the disadvantage of lacking durability.

This invention has been made with the above-mentioned points in mind, and next, this invention will be explained in detail with reference to drawings showing one embodiment thereof.

The drawing shows a two-tub washing machine, in which 1 is a machine frame, 2 is a water tank provided in the machine frame 1 and has a bulge toward the rear left side, and 3 is a concave shape formed at the bottom of the water tank 2 to handle pressure. The recessed part 4 forming the chamber 3' is a rotor blade rotatably disposed in the recessed part 3, and a plurality of back blades 5 are integrally provided on the lower surface of the rotor blade 4. 5 pressurizes the left rear portion of the pressure chamber 3'. Reference numeral 6 indicates an outlet for circulating water formed at the rear left side of the recessed portion 3 and communicating with the pressure chamber 3';
is a water supply port cover that forms a water supply channel 8 in the bulge at the rear left side of the water tank 2, and a plurality of lower water supply ports 9 are transparently provided at the bottom of the cover to communicate the water supply channel 8 with the inside of the water tank 2. . 10 is a connection joint formed on the lower wall of the water supply channel 8, and the outlet 6 of the pressure chamber 3' and the lower part of the connection joint 10 are connected to the first circulation hose 1.
1. Reference numeral 12 designates a second circulation hose whose one end is connected to the upper part of the connection joint 10 and runs through the water supply channel 8, and whose other end is introduced into a control section to be described later.

Reference numeral 13 denotes a control section of the electric washing machine provided on the rear side of the upper part of the machine frame 1. A control base 14 is attached to the machine frame 1 and constitutes the lower and rear surfaces of the control section 13, and a control section 13 is provided on the front side of the control base 14. The panel plate 15 is formed into a substantially trapezoidal shape on the side.
There is a washing and rinsing mode switch on the front of the
A timer etc. is attached. Reference numeral 16 indicates a water supply recess formed on the left side of the panel board 15, and reference numeral 17 indicates a mounting body 18 integrated with the rear panel of the control base 14.
A water supply joint is fixed to the water supply joint by screwing, and its upper end is introduced into the water supply recess 16,
A water supply pipe 19 from the outside is connected to the upper end of the water supply joint 17. 20 is a water supply ring that is connected to the lower end of the water supply joint 17 via a bellows hose 21 to form a water supply port 22; 23 is a U-shaped portion at the tip that holds the water supply ring 20 and protrudes from the front surface of the panel board 15; By moving the lever 23 left and right, the water supply to the aquarium 2 is switched between the upper and lower portions.

Reference numeral 24 designates a nearly box-shaped water supply port that is integrally formed on the left side of the bottom plate of the control base 14 and has an open top surface.A rectangular insertion port for a filter case, which will be described later, is formed on the front wall. A lower water supply guide cylinder 25 that bulges outward and is located above the water supply channel 8 is integrally formed in the lower part. Reference numeral 26 denotes an outflow portion that is integrally formed at the center bottom of the water supply port 24 and forms a guide path for water from the filter case, and the filter case is attached to the top surface of the outflow portion 26.
Reference numeral 27 denotes a first partitioning rib in the front-rear direction that is integrally provided on the right side of the outflow portion 26. An overflow chamber 28 is formed on the right side of the first partitioning rib 27.
The left side has a double bottom plate structure, and an upper bottom plate 29 is integrally provided to form a gap between it and the bottom plate of the outflow part 26. A gap is formed that serves as an inlet for water into the space between the double bottom plates. 30 is a second partition rib that partitions the space between the double bottom plates into a first channel chamber 31 on the left side and a second channel chamber 32 on the right side; 33 and 34 are upper bottom plates 29;
It is an upwardly rising rib integrally formed on the rear side edge, and there are first, second, and
Third drain passages 35a, 35b, and 35c are formed. 36 are arranged in parallel to the first flow path chamber 31, and the first,
A plurality of rectifying ribs 37 are provided integrally with the first partition rib 27 to rectify the water from the second drain passages 35a and 35b to make the water flow smoothly, and are separated from the overflow chamber 28 at the rear and directed downward. The auxiliary ribs 39, 40, 41 forming the outflow passage 38 of the outflow part 2
6 are formed at the front lower part of each of the first flow path chambers 3 and 3.
1, a second flow path chamber 32, and a first, second, and third outlet that communicate with the overflow chamber 28.

Reference numeral 42 designates a removable filter case that is inserted from the insertion opening in the front wall of the water supply port 24 and mounted on the outflow portion 26. The filter case 42 is formed in a box shape with an open top surface, and a lattice-shaped filter case is provided on the bottom surface of the filter case 42. Rib 43
are integrally formed, and the ribs 43 connect the upper surface of the upper bottom plate 29 and the first and second drain passages 35a, 3.
A plurality of passage holes 44 are formed which communicate with the first flow path chamber 31 via 5b. 45 is formed on both left and right sides of the filter case 42;
2 a support filter hook, 46 a handle, 47
is a net that is attached to the inner bottom of the filter case 42 and serves as a filter material, and is attached to the hook portion 48 on the upper edge of the filter case 42. 4
Reference numeral 9 denotes a sponge that is installed inside the filter case 42 and serves as a filter material.

The second circulation hose 12 provided in the water supply channel 8 has its other end passing through the control base 14 above the water supply channel 8 and passing through the control unit 1.
3 and guided to the rear of the water supply port 24, passing through the rear wall and opening on the top surface of the filter case 42.

Next, the operation of the above embodiment will be explained.

First, when supplying water, as shown in Figure 3,
2 is positioned on the upper surface of the filter case 42, water supplied from the water supply pipe 19 flows into the filter case 42 from the water supply port 22 through the water supply joint 17 and the bellows hose 21. This water passes through the sponge 49 and the net 47, where red rust, sand, etc. contained in the water are captured, and reaches the upper bottom plate 29 through the passage hole 44 of the filter case 42, and further, The water flows into the first channel chamber 31 through the drain passages 35a, 35b and between the flow regulating ribs 36, and is supplied into the water tank 2 from the first outlet 39. Here, when the amount of water supplied from the water supply port 22 increases, the sponge 49,
The water that has passed through the net 47 cannot completely flow out from the first outlet 39, overflows the first channel chamber 31, crosses the second partition rib 30, reaches the second channel chamber 32, and flows into the second channel chamber 32.
It also flows out from the outflow port 40, and when the amount of water supplied increases, it cannot flow out from the second outflow port 40 either, and the water overflows into the first and second channel chambers 31, 32, or overflows from the filter case 42. , a portion of the water is supplied into the water tank 2 through the outflow path 38 beyond the first partition rib 27, flows into the overflow chamber 28, and also flows out from the third outflow port 41. Therefore, the outflow of water from each of the outflow ports 39, 40, and 41 can be used as a guideline for the water supply amount, and when water flows out from the first outflow port 39, there is a shortage of water supply,
When the amount of water is supplied from the second outlet 39, 40, it can be determined that the amount of water supplied is adequate, and when the amount of water is supplied from the first, second, and third outlets 39, 40, and 41, it can be determined that the amount of water supplied is over.

When the water supply is completed and the rotary blades are rotated to start washing the laundry, the rotation of the back blade 5 causes pressure imbalance in the pressure chamber 3', and the water in the water tank 2 is transferred to the pressure chamber 3'. The water in the water tank 2 is sucked into the water tank 2 and discharged to the outlet 6, and the water in the water tank 2 is pumped through the first circulation hose 11 and the connection joint 10 by a so-called pump action.
and flows into the filter case 42 via the second circulation hose 12. Therefore, lint and the like generated during washing are sucked into the pressure chamber 3' and guided into the filter case 42 together with the water passing through the circulation hoses 11 and 12, and are absorbed into the sponge 49 and the net 4.
Captured at 7. This filter case 42
The circulating water that has flowed into the tank 2 is returned to the water tank 2 in the same manner as when water is supplied, but here, the clogging state of the filter can be determined by the outflow position of the circulating water. In other words, when the sponge 49 and the net 47 are not clogged, the circulating water flows through the sponge 49 and the net 47.
When the sponge 49 and net 47 become clogged, the circulating water gradually fills the filter case 42 and overflows from the filter case 42. The water reaches the overflow chamber 28 and flows out from the third outlet 41. In other words, the circulating water flows through the first and second outlet ports 39,
When it flows out from the third outlet 40, it is normal, and when it flows out from the third outlet 41, it indicates that it is clogged.

During rinsing, water is supplied from the water supply port 22, and the rotor 4 is rotated to circulate the water in the water tank 2, and the supplied water and circulating water flow into the filter case 42 in the same manner as described above. do. Here, operate the water supply switching lever 23 to
Move the water supply port 22 to the left to the lower water supply guide cylinder 2.
5, water from the water supply port 22 passes through the water supply channel 8 and sequentially flows into the water tank 2 from the lower water supply port 9, allowing water to be supplied to the lower part.

Therefore, according to the embodiment, the filter case 42 is removably attached to the water supply port 24 integrated in the control base 14 of the control unit 13, and the water from the water supply port 22 and the circulating water are stored in the filter case 42. can flow in and supply this water into the aquarium 2 through the sponge 49 and the net 47. Therefore, both the conventional water supply filter and the lint filter can be concentrated into one, and the sponge 49 and the net 47 can have both of them. In addition, since the filter case 42 is detachable, the filter sponge 49 and the net 47 can be easily cleaned, and the filter effect can be improved. Further, as described above, since the filter case 42 is located in the control section 13 above the inner tank 2, the circulation filter can be installed without narrowing the laundry input port of the water tank 2 and without changing the shape of the water tank 2. method can be adopted, and the drawbacks of the conventional method can be eliminated.
Furthermore, since the filter material of the filter case 42 does not come into contact with the washing cloth, there is no fear that the filter material will come off or be damaged.

In addition, in the above, sponge 4 is used as the filter material.
9 and net 47 were used, but this sponge 4
Even without the net 47, a soft water supply can be made with just the net 47, and if a nylon net made of women's tights or the like is used for the net 47, it can be reused, and the captured garbage can also be directly thrown away together with the net 47.

As described above, according to the filter device for an electric washing machine of this invention, a filter case containing a filter material is removably attached below the water supply port of the control unit, and water from the water supply port is inserted into the filter case. By supplying circulating water from the bottom of the aquarium, both the water supply filter and the lint filter can be concentrated in one place, and the filter material of the filter case can have both functions. Since the material can be easily cleaned by attaching and detaching the filter case, the filter effect can be improved. In addition, since this type of filter case is attached to the bottom of the control unit, it does not affect the shape of the tank, and the laundry input opening can be widened, preventing the filter material from coming off or being damaged due to contact with the laundry cloth. There's nothing to do.

[Brief explanation of the drawing]

The drawings show one embodiment of the filter device for an electric washing machine of this invention, in which Fig. 1 is a cutaway front view of a water tank, Fig. 2 is a plan view taken along line A-A' in Fig. 1, and Fig. 3 is a main view. FIG. 4 is a cut-away plan view taken along the line B-B' in FIG. 3, FIG. C- in the diagram
The side views cut along line C' and line D-D', and FIGS. 8 and 9 are a front view and a plan view of a portion of the filter case. 1... Machine frame, 2... Water tank, 3... Recessed part,
3'...Pressure chamber, 4...Rotor blade, 6...Outlet, 1
1, 12...First and second circulation hoses, 13...Control unit, 19...Water supply pipe, 22...Water supply port, 42...Filter case, 47...Net,
49...Sponge.

Claims (1)

[Scope of utility model registration request] forming a water supply port to which a water supply pipe from the outside is connected to a control section on the upper part of the machine frame; a filter case is removably mounted below the water supply port; and a filter material is mounted within the filter case; A rotor blade is disposed in a recess formed at the bottom of the water tank in the machine frame, a pressure chamber is formed by the rotor in the recess, and an outlet of the pressure chamber is connected to the filter case through a circulation pipe. A filter device for an electric washing machine with an opening on the top surface.