JPS6282998A - 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 provides washing by rotating an agitator having a plurality of protrusions)
This relates to a type of washing machine that does U.

[Technical Background of the Invention] Conventionally, this type of washing machine has been equipped with an agitator having a plurality of protrusions at the inner lower part of the washing tub, and washing is performed by rotating this agitator. 'are doing. Figure 5 shows the agitator 1 of a washing machine that washes clothes in this way.
The stirring body 1 is provided with, for example, three protrusions 2 radially extending from the center to the outer periphery.

[Problems with the background art] In the case of the above-mentioned conventional device, when the stirring body 1 is rotated, the sixth
The laundry items marked ■, ■, ■, ■, ■ in the figure are all shown in figure (A),
It is moved as shown by the changes from (B) to (E) and (D'), respectively, but at this time, since the protrusion 2 extends continuously from the center to the outer periphery of the stirring body 1, In most cases, the laundry is restrained by the protrusions 2 and rotated while being located between them, and therefore there is little movement of the laundry relative to the agitator 1, resulting in a problem that the washing effect is low. Ta. Furthermore, the force of the protruding portion 2 to transport the laundry in the direction of rotation is too strong, and the centrifugal force of the laundry causes the agitator 1 to move outward, that is, in the washing tub 3.
This prevents the laundry from moving toward the inner upper part, and as a result, it does not facilitate changing the laundry from top to bottom or inside and out, resulting in a problem of lowering the washing τ effect.

[Object of the Invention] The present invention has been made in view of the above-mentioned circumstances, and therefore, its object is to provide a washing machine that can obtain a high washing effect when washing laundry using an agitator having protrusions. We are here to provide you with a machine.

[Summary of the Invention] The present invention provides a protrusion of a stirring body that includes a first protrusion extending radially from the center of the stirring body to a midway point, and a protrusion between each tip of the first protrusion. By forming it separately from the second protrusion that also extends radially outward from the facing area, it is possible to increase the movement of the laundry against the agitator and also to facilitate the exchange of the laundry up and down and inside and out. This is a characteristic feature.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. First, in FIG. 2, reference numeral 11 is an outer box of a two-tub type washing machine, and a washing tub 12 and a dewatering tub (not shown) are arranged side by side inside this. 13 is a bearing provided at the center of the bottom of the washing tub 12, to which the drive shaft 1 is connected.
4 is through-supported. Further, an output shaft (not shown) of a decelerator 15 is connected to the drive shaft 14, and a motor 17 capable of rotating in forward and reverse directions is connected to the input shaft of the decelerator 5 via a belt transmission mechanism 16. There is. Then 18 is wash)η
A stirring body disposed in the inner lower part of the tank 12, especially in the case of this embodiment, is shaped like a container, for example, a bowl, as shown in FIG. 3, and has a mounting hole 19 formed in its center. There is. or,
The inner surface of the agitator 18 facing into the washing tub 12 has a protrusion divided into a first protrusion 20 and a second protrusion 21.
To be precise, as shown in FIG. 1, the first protrusion 20
For example, three protrusions extend radially from the center to the middle, and the second protrusions 21 extend outward from the area facing between the tips of the first protrusions 20 to the upper edge of the outer periphery. It is formed into three radial lines. Incidentally, 22 in FIG. 2 is a screw, which is screwed into the drive shaft 14 through the mounting hole 19 of the agitator 18 and tightened, thereby fixing the agitator 18 onto the drive shaft 1.
It is installed on 4. Further, 23 is a pump blade formed on the outer bottom surface of the stirring body 18, 24 is a pumping channel provided facing the pump blade 23, 25 is a filter provided at the tip of the pumping channel 24, 26 is a water overflow vibrator, 27 is a drain valve, and 28 is a drain port.

Now, in the case of the structure as described above, during washing, the belt is rotated alternately in the forward and reverse directions in a short-term intermittent mode in which the motor 17 is energized for 1.3 seconds and then cut off for 0.6 seconds. The agitator 18 is also rotated alternately in both forward and reverse directions via the transmission mechanism 16 and decelerator 15, thereby washing the clothes. At this time, the laundry indicated by ■, ■, ■, ■, ■ in FIG. In other words, the second protrusion 21 is not continuous with the first protrusion 20, but is cut off, and extends from a portion facing between the tips thereof. Therefore, the laundry is not restrained by the protrusions 20 and 21 like the conventional continuous protrusions 2, and especially those along the first protrusions 20 are not restrained by centrifugation due to the rotation of the agitator 18. After moving outward along the first protrusion 20 due to the force, the stirring body is released from the first protrusion 20 and becomes free until it follows the second protrusion 21, thereby causing the stirring body to move outward along the first protrusion 20. 1
Movement against number 8 becomes more active.

As is clear from the fact that the laundry moves vigorously, the first protrusion 20 and the second protrusion 21 move in the direction of rotation of the agitator 18 in a way that washes the laundry faster than before. Unlike the continuous ridges 2, the stirring body 18
The movement of the laundry to the upper part of the washing tub 12 due to the centrifugal force of rotation is not hindered, and the exchange of the laundry from top to bottom and inside and outside is promoted, and the overall washing effect can be sufficiently enhanced.

In the above embodiment, the stirring body 18 is illustrated as having a container shape, but the present invention is not limited to this, and the base body thereof may be in the shape of a flat plate.

In addition, the present invention is not limited only to the embodiments described above and shown in the drawings, but the present invention is not limited to the embodiments described above and shown in the drawings. It may be implemented with appropriate changes within the range not departing from the above.

[Effects of the Invention] As is clear from the above description, according to the present invention, the protrusions of the stirring body include the first protrusion extending radially from the center to the middle part of the stirring body; By forming the first protrusion separately from the part facing between the tips of the first protrusion and the second protrusion extending radially, it is possible to increase the movement of the laundry relative to the agitator, and to increase the movement of the laundry against the agitator. , it is possible to promote the exchange of the inside and outside, and to obtain a high cleaning effect, which is a truly excellent effect.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a plan view of the washing tub side portion of a two-tub washing machine, FIG. 2 is a longitudinal sectional view of the same portion, and FIG. FIG. 4 is a perspective view of the stirring body alone, and is a diagram for explaining the action; FIG. A) and (A) are a plan view and a schematic vertical cross-sectional view, respectively, of the main part after the stirring body is rotated. and Figures 5 and 61.
Figure 5 is a diagram equivalent to Figure 3, Figures 6 (A) and (B) are equivalent to Figures 4 (A) and (0), and Figure 5 is a diagram equivalent to Figure 3.
A) and (A') are views corresponding to FIG. 4 (A') and (R). In the figure, 12 is a washing) η tank, 17 is a motor, 18 is an agitator,
20 is a first protrusion, and 21 is a second protrusion.

Claims (1)

[Claims] 1. A washing tub is equipped with an agitator having a plurality of protrusions facing into the washing tub at the inner lower part thereof, and washing is carried out by rotating the agitator, wherein the protrusions A first protrusion extending radially from the center to a midway part of the agitating body, and a second protrusion extending radially outward from a portion facing between each tip of the first protrusion. A washing machine characterized by being formed separately from a protrusion.