JP3839499B2 - One tank washing machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a circulation water channel provided in a washing and dewatering tank of a one-tank fully automatic washing machine.
[0002]
[Prior art]
For example, as shown in FIG. 3, the fully automatic washing machine includes a washing / dehydrating tub 4 having a pulsator 3 at the bottom inside a water receiving tub 2 disposed in an outer box 1, and a washing / dehydrating tub. The motor 5 is disposed below the motor 4, and the rotation of the motor 5 is transferred to the washing shaft 8 via the pulley, the V belt, the clutch mechanism 6 and the speed reduction mechanism 7, and the rotation of the motor 5 is further rotated to the pulley and the V belt. Then, it is transmitted to the dewatering shaft 9 of the washing and dewatering tank via the clutch mechanism 6.
[0003]
The washing / dehydrating tub 4 has a large number of dewatering holes 10 in the peripheral wall, and is isolated from the inside of the washing / dehydrating tub 4 from below the pulsator 3 toward the upper portion of the washing / dehydrating tub 4. A vertical bowl-shaped circulating water channel 11 is formed, and a discharge port 12 for discharging the circulating water into the washing and dewatering tub 4 is formed at the upper end of the circulating water channel 11.
[0004]
This circulating water channel 11 uses, for example, the rotational force of the blades of the pulsator 3 to pump up the water in the washing / dehydrating tub 4 and discharges it from the upper discharge port 12 so that the washing water and the rinsing water are washed out. 4 is circulated from the bottom to the top to increase the washing efficiency, but no specific configuration has been established so far.
[0005]
[Problems to be solved by the invention]
For this reason, the structure of the part of the circulating water channel 11 becomes complicated, or for example, when the washing and dewatering tub 4 is made of stainless steel and it is difficult for dirt to adhere to it, the countermeasures against the dirt at the location of the circulating water channel 11 are not sufficient. Further, the sealing performance in the circulating water channel 11 is not good, and there is a possibility that water in the water channel leaks out of the water channel.
[0006]
The object of the present invention is to eliminate the inconvenience of the conventional example, firstly, the structure of the circulating water channel is simple and easy to form, and secondly, in the case where the washing and dewatering tub is made of stainless steel, It is another object of the present invention to provide a one-tub type washing machine that can prevent the dirt from adhering to the surface and thirdly has a good sealability at the water channel and has no risk of water leakage.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention firstly has a pulsator disposed at the bottom of the washing and dehydrating tub, and the inside of the washing and dehydrating tub from below the pulsator toward the upper portion of the washing and dehydrating tub. In the one-tub type washing machine that forms an isolated circulating water channel and forms a discharge port for discharging the circulating water into the washing and dewatering tub at the upper end of the circulating water channel, the circulating water channel is a peripheral wall of the washing and dewatering tub Swelled inward of the tub, positioned outside the bulging portion, and attached to the outside of the tub, and formed by the inner wall of the washing and dehydrating tub and the curved plate, the center of the bulging portion The gist is that the baffle is integrally formed by protruding in a mountain shape in the vertical direction toward the inside of the washing and dewatering tub.
[0008]
Secondly, the circulation channel is formed by an inner wall of the washing and dewatering tub and the partition plate, with a partition plate separate from the washing and dewatering tub protruding from the inside of the washing and dewatering tub. The gist is that the baffle is integrally formed by projecting in the shape of a mountain in the vertical direction toward the inside of the washing and dewatering tank.
[0009]
Thirdly, the circulation channel is attached by protruding a partition plate separate from the washing and dewatering tub to the inside of the washing and dewatering tub, and located in a space formed by the partition plate and the washing and dehydrating tub. A mating plate facing the partition plate and abutting against the inner wall of the washing / dehydrating tub is fitted to the partition plate, and is formed by the fitting plate and the partition plate, and the center of the partition plate is inward of the washing / dehydrating tub. The gist is that the baffle is integrally formed by projecting in a mountain shape in the vertical direction.
[0010]
[Action]
According to the first aspect of the present invention, in addition to the above action, a fitting plate facing the partition plate and abutting against the inner wall of the washing and dewatering tub is fitted to the partition plate, and the circulation channel is formed by the fitting plate and the partition plate. Therefore, the water channel is double sealed at the joint between the fitting plate and the partition plate and the joint between the partition plate and the inner wall of the washing / dehydrating tub, thereby preventing water leakage from the water channel. Can be surely prevented.
[0011]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional plan view of a circulating water channel portion, which is a main part of an embodiment of the one-basin washing machine according to the present invention, and since the overall configuration of the washing machine has already been described, detailed description here Is omitted.
[0012]
In the case where the circulating water channel 11 isolated from the inside of the washing / dehydrating tub 4 is formed from the lower side of the pulsator 3 arranged at the bottom of the washing / dehydrating tub 4 toward the upper portion of the washing / dehydrating tub 4, the present invention is applied. Then, as a first embodiment, the circulating water channel 11 is formed such that the peripheral wall of the washing and dewatering tub 4 bulges integrally in the vertical direction inside the tub, and is located outside the bulging portion 13 so as to face it. The curved plate 14 is attached to the outside of the washing / dehydrating tub 4 from the inside of the tub with screws 15, and is formed by the inner wall of the washing / dehydrating tub 4 and the curved plate 14.
[0013]
The curve curve of the curved plate 14 has the same rate as the curve of the peripheral wall of the washing / dehydrating tub 4, and the curved plate 14 is located on the peripheral wall portion of the washing / dehydrating tub 4 in the recessed portion due to the formation of the bulging portion 13. By attaching, the washing and dewatering tub 4 is formed into a flat circular shape as a whole.
[0014]
Further, the baffle 16 is integrally formed by projecting the center of the bulging portion 13 in the vertical direction toward the inside of the washing and dewatering tub 4.
[0015]
As a result, the circulating water channel 11 protrudes from the inside of the washing and dewatering tub 4, and the curved plate 14, which is one of the members constituting the circulating water channel 11, is attached to the outside of the washing and dewatering tub 4. The inside of the washing and dewatering tank 4 is integrally formed with the inner wall of the tank, and the circulation water channel 11 is also formed as a part of the tank in the tank. The protruding portion of the circulating water channel 11 into the tank is also made of stainless steel, and dirt does not easily adhere to this portion. The curved plate 14 can be made of stainless steel or synthetic resin.
[0016]
FIG. 2 shows a second embodiment. In the first embodiment, members other than the inner wall of the washing and dewatering tub 4 are attached to the outside of the tank among the members constituting the circulating water channel 11, but the tank is opposite to this. It can also be attached inside, and a vertically long partition plate 17 whose end is curved outward along the length direction is attached to the inside of the washing and dewatering tub 4 so as to be attached.
[0017]
In this case, the partition wall plate 17 has screw mounting portions 17a protruding inside the curved portions 17b on both sides along the length direction, and the screw mounting portions 17a and the curved portions 17b are in close contact with the inner wall of the washing and dewatering tub 4. And the partition board 17 is fixed in a tank by inserting the screw | thread 15 into the screw attachment part 17a from the tank outer side. Thereby, the circulating water channel 11 is formed by the inner wall of the washing and dewatering tub 4 and the partition plate 17.
[0018]
Then, as in the first embodiment, the baffle 16 is integrally formed by projecting the center of the partition wall plate 17 in the vertical direction toward the inside of the washing and dewatering tub 4.
[0019]
In this second embodiment, the screw mounting portion 17a and the curved portion 17b of the partition plate 17 are in close contact with the inner wall of the washing / dehydrating tub 4, so that the sealing performance is excellent and the screw stopper portion also protrudes into the tub. Therefore, the inner peripheral surface of the washing and dewatering tub 4 becomes smooth, and the laundry can be prevented from being caught.
[0020]
FIG. 3 shows a third embodiment, which is located in a space formed by the partition plate 17 and the washing and dewatering tub 4 in addition to the configuration of the second embodiment, and faces the partition plate 17. The fitting plate 18 in contact with the inner wall of the washing and dewatering tub 4 was fitted into the partition plate 17, and the circulation plate 11 was formed by the fitting plate 18 and the partition plate 17.
[0021]
The fitting plate 18 is a vertically long plate having a curve with the same ratio as the curve curve of the peripheral wall of the washing / dehydrating tub 4, and a protruding wall 18a is raised on both sides along the length direction, and a groove 18b is formed at the upper end of the protruding wall 18a. Formed.
[0022]
On the other hand, a protrusion 17c is formed on the partition plate 17 at a position opposite to the groove 18b, and the fitting plate 18 is fixed to the partition plate 17 by fitting the protrusion 17c to the groove 18b. In this state, the circulating water channel 11 is sealed at the fitting portion of the groove 18b and the protrusion 17c in addition to the two portions of the screw mounting portion 17a and the curved portion 17b of the partition plate 17 to ensure water leakage. To prevent.
[0023]
As described above, when the pulsator 3 rotates in an easy-to-wash process, the water in the washing and dewatering tub 4 is pumped into the circulation water channel 11 by the rotational force and is discharged again from the upper discharge port 12 into the tub. . The washing water is well adapted to the laundry by the circulation of the washing water through the circulation channel 11.
[0024]
Further, for example, by setting the rotation of the washing / dehydrating tub 4 in a free state in the washing process, if this rotates in the opposite direction to the pulsator 3, the horizontal rotation restraining force on the laundry in the periphery of the washing / dehydrating tub 4 is Is added, and a scrub washing effect is produced, the washing performance is improved, and water splashing can be prevented.
[0025]
【The invention's effect】
As described above, the one-basin-type washing machine of the present invention firstly bulges the peripheral wall of the washing and dewatering tub integrally inside the tub and is positioned outside the bulging portion so as to be outside the tub. By simply attaching a curved plate to the circulatory channel, a circulation channel can be easily formed and the structure is simple. When the washing / dehydrating tub is made of stainless steel, the circulation water channel protruding inward of the washing / dehydrating tub is formed of stainless steel integral with the tub in the tub. Further, since the baffle is integrally formed with the washing and dewatering tank, it can be easily formed.
[0026]
Secondly, a partition plate separate from the washing and dewatering tub is attached so as to protrude inside the washing and dewatering tub, and is formed by the inner wall of the washing and dewatering tub and the partition plate. The joint with the dehydration tank is located in the tank, and the sealing performance is improved.
[0027]
Third, a fitting plate facing the partition plate and abutting against the inner wall of the washing and dewatering tub is fitted to the partition plate, and the circulation plate is formed by the fitting plate and the partition plate. And a double seal at the joint between the partition wall and the inner wall of the washing and dewatering tub, so that water leakage from within the water channel can be reliably prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional plan view of a main circulating water channel showing a first embodiment of a one-basin washing machine of the present invention.
FIG. 2 is a cross-sectional plan view of the main circulating water channel showing a second embodiment of the one-tub type washing machine of the present invention.
FIG. 3 is a cross-sectional plan view of the main circulating water channel showing a third embodiment of the one-tub type washing machine of the present invention.
FIG. 4 is an overall explanatory view of a single-tub type washing machine of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer box 2 Water receiving tank 3 Pulsator 4 Washing and dewatering tank 5 Motor 6 Clutch mechanism 7 Deceleration mechanism 8 Washing shaft 9 Dehydrating shaft 10 Dewatering hole 11 Circulating water channel 12 Discharge port 13 Swelling portion 14 Curved plate 15 Screw 16 Baffle 17 Partition Plate 17a Screw mounting portion 17b Curved portion 17c Projection 18 Fitting plate 18a Projection wall 18b Groove

Claims (1)

  A pulsator is disposed at the bottom of the washing and dewatering tank, and forms a circulating water channel that is isolated from the inside of the washing and dewatering tank toward the top of the washing and dewatering tank from below the pulsator, and the upper end of the circulating water channel In the one-tub washing machine that forms a discharge port for discharging the circulating water into the washing / dehydrating tub, the circulating water channel has a partition plate separate from the washing / dehydrating tub protruding inside the washing / dehydrating tub. A fitting plate that is positioned in a space formed by the partition plate and the washing / dehydrating tub and that is opposed to the partition plate and abuts against the inner wall of the washing / dehydrating tub is fitted to the partition plate, And a partition plate, and a baffle is integrally formed by projecting the center of the partition plate into a mountain shape in the vertical direction toward the inside of the washing and dewatering tub.

Images