JPS6234598A - 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 [Technical Field of the Invention] The present invention relates to a washing machine that is improved so as to prevent buttons and the like from entering the back side of an agitator.

[Technical background of the invention and its problems] Conventionally, in washing machines, an agitator 2 called a pulsator is disposed at the inner bottom of a washing tub 1, as shown in FIG. Washing is carried out by rotating the agitator 2 in forward and reverse directions. In this matter, silently,
As shown in FIG. 5, the buttons 3 and the like that have fallen from the laundry enter the agitator 2 along the inner circumferential surface of the washing HaWfl between the periphery of the agitator 2 and the agitator 2. There was a problem in that the back side of the body 2 hit the stirring body 2 and produced abnormal noise.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and its object is to achieve lj! To provide a washing machine B capable of preventing the intrusion of a button on the back side of an agitator body.

[Summary of the invention] The present invention forms an upward annular groove in which the outer peripheral edge of the agitator is housed at the upper end of the part of the washing tub where the agitator is disposed, and a part of the annular groove is provided with an annular groove. For example, by providing a housing section with a large cross-sectional shape such as a deep bottom or a wide width, a button, etc. that enters between the stirring body and the inner circumference of the washer WIm can be received from the annular groove, and the stirring body can be In addition to preventing intrusion into the back side, buttons and the like that have entered the annular structure are collected in the housing section by rotation of the agitator, so that no abnormal noise will be generated forever.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. Reference numeral 11 denotes an outer cylinder of a two-tub washing machine, in which a washing tank 12 and a dewatering tank (not shown) are arranged side by side. This washing tub 12 has a lower part formed as a bottomed cylindrical wall part 13 and an upper part formed as a square cylindrical wall part 14 that is one size larger than the cylindrical wall part 13. Also washing 4
In ff12, a hot water drainage vi15 is formed by bulging outward a portion extending from the bottom of the cylindrical wall 13 through the circumferential wall of the cylindrical wall 13 to the upper end of the circumferential wall of the rectangular cylindrical wall 14.

Reference numeral 16 denotes a bearing fixed to the center of the bottom of the washing tub 12, on which a shaft 17 is supported, and the output of the speed reducer 18 is connected to this @17. A transmission mechanism 20 is then connected to the bell 1 between the input shaft of the reducer 18 and the motor 19 that can rotate in forward and reverse directions.
are connected via. 21 is the cylindrical wall portion 1 of the washing tub 12
3 and attached to a shaft 17, it forms a circular container shape with a shallow bottom, and has a plurality of convex portions 22 protruding from the inner surface of its circumferential wall, and a pump blade on the outer bottom surface. 23 are also provided protrudingly. Reference numerals 24 and 25 denote an overflow strainer and a drainage strainer, which are attached to and removed from the overflow drainage chamber 15 in a vertical positional relationship in order to close the part of the overflow drainage chamber 15 above the upper end of the stirring body 21 and separate it from the washing tub 12. installed as possible. 26 is a casing arranged and fixed in the overflow drainage chamber 15 so as to face the pump impeller Mi23 of the agitator 21, and this is for discharging water sent from the pump impeller +Fi23 as the agitator 21 rotates. A hose 27 is connected to its discharge port 26a, and this hose 27 is further connected to a pumping channel 29 provided on the back side of the overflow strainer 24 via a joint 28. 30 is a lint filter attached to the upper end of the pumping channel.

Therefore, at the back of the washing tub 12, the upper end portion of the cylindrical wall portion 13 on which the agitator 21 is disposed is formed to have a slightly larger diameter, and an annular wall 13b is protruded on the inner circumferential side of the step portion 13a created thereby. -y
By doing so, a U-shaped groove 31 is formed around the entire circumference except for the portion corresponding to the overflow drainage chamber 15. And that full 3
A storage case 32 formed integrally with the joint 28 is disposed in a portion corresponding to the overflow drainage chamber 15 that was removed from the formation of 1. A gap 33 continuous to the groove 31 is formed therebetween. The groove 31 and the gap 33 define the portion where the stirring body 21 is disposed, that is, the cylindrical wall 8I! An annular IM 34 is formed around the upper end of the annular groove 3.
The housing case 32, which forms part of the storage case 4, is a housing part with a deeper bottom than the other parts. On the other hand, a flange 35 having a U-shaped cross section and an annular hanging wall 35a is extended from the upper end of the stirring body 21, and the hanging wall 35a of the flange 35 is loosely fitted into the annular groove 34. are doing. In addition, 36 is an overflow vibrator installed in the overflow drain chamber 15 so as to be movable up and down, 37 is a sealing member for a drain valve provided at the lower end of the overflow vibrator 136, 3
8 is a washing tub 1-2 which is opened and closed by this sealing member 37.
There is a drain at the bottom.

Next, the operation of the above configuration will be explained. Motor 19 when washing
By rotating the agitator 21 alternately in both forward and reverse directions in a short-term intermittent mode in which the power is applied for 1.2 seconds and then turned off for 0.6 seconds, the stirring body 21 is rotated by the belt-driven IaM020.
and rotation in both forward and reverse directions alternately via the deceleration Bff18. During this washing, buttons 38 and the like that have fallen from the laundry (not shown) are moved to the agitator 2 as shown by arrow A in FIG.
Due to the centrifugal force caused by the rotation of the drum 1, the water is cured and fried on the inner circumferential surface of the agitating body 21, and transferred to the inner surface of the washing tub 12 by the momentum.

Then, press button 3 to slide down the inner surface of the washing tub 12.
8 etc. may enter the gap between the upper end flange 35 of the agitator 21 and the inner peripheral surface of the washing tub 12, but since the entry point is configured as an annular groove 34, the button 38 etc. is retained within the annular groove 34 and does not enter the back side of the stirring body 21. The buttons 38 and the like held in the annular groove 34 are moved within the annular groove 34 by the rotation of the agitator 21 and are dropped into the housing case 32 to be accommodated therein. Therefore, the inconvenience that the button 38 and the like continue to move within the annular groove 34 and emit abnormal noises does not occur. The buttons 38 and the like housed in the housing case 32 can be easily removed from the housing case 32 by removing the drain strainer 25.

Note that the present invention is not limited to the embodiments described above and shown in the drawings; for example, the accommodating portion may have an outwardly expanded diameter even if it does not have a deep-bottomed shape (the same applies to the J-shape). The stirring body is not limited to the 8-vessel type shown in the above embodiment, but may also be a type called a pulsator. I
It may be implemented with appropriate changes within the scope of the gist, such as using a washing machine with both IR water and cold water.

C Effect of the invention 1 As explained above, the present invention traps buttons, etc. that enter through the gap between the washing tub and the agitator by the annular groove formed in the washing tub, and prevents the buttons, etc. from entering the back side of the agitator. In addition, the button cage captured by the annular groove is housed away from the stirring body in a storage section provided in a part of the annular groove, thereby preventing the buttons, etc. from rolling forever in the annular groove. This provides excellent effects such as being able to prevent abnormal noises from occurring.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention,
Fig. 1 is a longitudinal sectional view of the main parts with some parts removed, Fig. 2 is an exploded perspective view of the main parts, Fig. 3 is an overall longitudinal sectional view of the washing machine, and Fig. 4 is a conventional washing machine. A vertical cross-sectional view of the washing W1 portion of the structure, and FIG. 5 is an enlarged vertical cross-sectional view of a part of the same portion. In the figure, 12 is a washing tank, 15 is an overflow drain, 19 is a motor, 21 is an agitator, 24 is an overflow drain, 25 is a drain drain 1 to a rainer, 26 is a casing, 28 is a joint, and 29 is a water pump. 32 is a storage case (accommodation part), 34 is an annular groove,
35 is a flange, and 38 is a button. Figure 1 Car 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Scope of Claims] 1. In a washing tub in which an agitator that rotates forward and backward is disposed in the inner lower part of the washing tub, around the upper end of the portion of the washing tub where the agitator is disposed, A washing machine characterized by forming an upward annular groove in which an outer peripheral edge of an agitator is housed, and providing a housing part in a part of the annular groove. 2. In the washing tub, a part of the peripheral wall is bulged outward to form an overflow drainage chamber partitioned by a removable strainer, and the storage section is provided within this overflow drainage chamber. A washing machine according to claim 1.