JPS62148691A - 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 Field of Industrial Application The present invention relates to a washing machine for washing and dehydrating clothes and the like.

BACKGROUND OF THE INVENTION Conventionally, so-called pulsator-type washing machines have been widely used in this type of washing machine, but they often cause kinks and damage to the washed items. In addition, so-called agitating washing machines in which the agitating blades rotate reciprocatingly are less likely to cause the laundry to twist or become loose, but because the agitating blades move rapidly back and forth, the laundry tends to pill due to the agitating blades. There is a problem.

Another washing agitation method is Utility Model Publication No. 32-1456
Publication No. 4, Utility Model Publication No. 32-14562, Utility Model Publication No. 32
As seen in Japanese Patent No. 4790 and Japanese Utility Model Publication No. 31-18239, a device is disclosed in which an eccentric inclined shaft is rotated and a stirring blade is precessed by this shaft.

Although this method has the advantage that the laundry is relatively less likely to be twisted or damaged, it has problems such as the laundry getting caught under the stirring blades and the clothes getting wrapped around the stirring blades when the machine is operated for a long time.

In order to solve these problems, Japanese Patent Application Laid-Open No. 59-186
As seen in Japanese Patent No. 590 and Japanese Patent Laid-Open No. 59-189894, a washing method has been proposed in which stirring blades are rotatably attached to an eccentric inclined shaft and the eccentric inclined shaft is rotated.

In this method, the stirring blades are rotatably attached to an eccentric tilted shaft, and the stirring blades revolve as the eccentric tilted shaft rotates, but they do not rotate, so the laundry is not forcibly turned left and right, and the laundry is compressed by the stirring blades. Repeat the relaxation and shake the stirring blade left and right (
4- The entire laundry is washed by turning the laundry upside down.

As a result, the laundry was often kinked, damaged, and pilled.

Problems to be Solved by the Invention In such a conventional configuration, one stirring blade does not forcibly stir the laundry, and the laundry is repeatedly compressed and relaxed by swinging the stirring blade from side to side. The laundry is pressed against the side wall from the center at the bottom of the washing machine by the blades, and gradually moves upwards due to the vertical movement of the outer periphery of the stirring blade, and at the top of the washtub, the laundry is pushed up from the bottom and moved to the center of the top,
Repeat the up and down movement moving to the bottom again.

This vertical movement depends on the size of the blades provided on the agitating blades.If the blade shape is thick, the vertical movement will be slow and the cleaning effect will be moderate, but at the end of washing, the difference between the washing tub and the blades of the agitating blades will be small. There was a problem that it was difficult to take out the laundry.

If the blade shape of the stirring blade is made smaller, this difficulty in taking out the laundry can be solved, but conversely, the power to stir the laundry becomes smaller and there is no vertical movement, which reduces the cleaning effect and causes uneven washing. was there.

The present invention is intended to solve such problems, and aims to facilitate the removal of laundry while providing a cleaning effect.

Means to Solve the Problem In order to solve this problem, the present invention expands the shape of the blade of the stirring blade from the top to the bottom around the central body in a substantially conical shape, and the slope at the bottom is formed by an inclined eccentric shaft. The slope is set to be the same as, or several degrees larger than, the slope.

Function: With the above-described configuration, all the blades of the agitating blades in the lower part of the washing tub are either parallel to the side surface of the washing tub or inclined inward. Therefore, the laundry can be set to a size that can be sufficiently agitated by the stirring blades, and the laundry can be shaped so that it can be easily taken out upward during washing.

As a result, the laundry cleaning effect can be increased and the laundry work can be improved.

Example Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.

This will be explained with reference to FIG. In the figure, 1 is a washing tub (hereinafter referred to as tub), the lower part of which is connected to a dewatering hollow shaft 3 via a flange 2. 4, the dehydration receiver is a tank;
The tank 1 is installed inside, and a speed reduction device 5 is attached to the lower part. 6 is a washing and driving shaft, and a connecting fitting 7 is attached to its upper end.
The lower end of the eccentric tilting shaft 8 is connected to the lower end of the eccentric tilting shaft 8 via.

A stirring blade 9 is attached to the eccentric inclined shaft 8 via a force regulating member 11 and a receiver 10. The stirring blade 9 includes a central body portion 11 that accommodates the bearing 10, a bottom substrate 12 provided at the lower end of the central body portion 11, and a plurality of stirring blades 13 formed radially from the central body portion 11. . The stirring blade 13 spreads from the upper part to the lower part in a substantially conical shape, and the lower blade 14 has an inclination A.
is set to be the same as or several degrees larger than the inclination B of the eccentric tilting shaft 9.

In the above configuration, the motor 1 is connected to the washing drive shaft 6 during washing.
5 and the speed reducer 6, the eccentric inclined shaft 8 precesses, and since the stirring blades 9 are rotatably attached to the eccentric inclined shaft 8, the stirring blades 9 themselves It hardly rotates and repeatedly oscillates as shown by the solid and broken lines in the figure. Therefore, the outer edge of the bottom substrate 12 and the blades 14 of the stirring blade 9 swing vertically and horizontally. The laundry 16 in the tub 1 moves from side to side at the bottom of the tub 1 due to the swinging of the stirring blades 9.
It is lifted upward along the inclined wall 17 of the tank 1, moves to the center at the top of the tank 1, and rotates up and down.

In this type of washing method, since the stirring blades 9 are rotatably attached to the eccentric inclined shaft 8, there is no force to forcibly stir the laundry 16. The compression and relaxation of the laundry 16 and the vertical movement within the tub 1 affect the cleaning effect and unevenness of washing of the laundry 16.

For this reason, the larger the agitation blade 13 of the agitation R9, the greater the influence it has on the laundry 16. In particular, the lower part 14 and upper inflection point 18 of the blade 13 are in charge of horizontal compression and vertical movement of the laundry 16. The greater the amount of water that comes out to the outside, the greater the washing effect.

However, as shown in FIG.
In the case where the blades 13 of the stirring blade 9 are vertical to the side wall 17 of the tank 1, the higher one of the blades 13 of the stirring blade 9 is, the closer to the side wall 17 the side wall 17 of the tank 1 is.

Therefore, when the inflection point 18 of the blade 13 is above the laundry 16, this inflection point 18 becomes an obstacle when washing is finished, making it difficult to take out the laundry 16.

In the present invention, the inclination of the lower part 14 of the stirring blade 90 is set to be the same as or slightly larger than the inclination of the eccentric tilting shaft 8, so that the blade 14 and the inclined wall 17 of the tank 1 are parallel or slightly spread upward. , the inflection point 18 is never above the laundry 16.

As a result, the blades 13 of the stirring blades 9 are made larger, and the laundry 16
The laundry can be sufficiently stirred, and when the laundry is taken out at the end of washing, the laundry can be easily taken out without being obstructed by the blades of the stirring blade.

Effects of the Invention As described above, according to the present invention, a stirring blade is provided at the inner bottom of the washing tub, and an eccentric inclined shaft is provided to rotatably support the stirring blade and rotate it one eccentricity, and the stirring blade is rotated from the top to the bottom. A plurality of stirring blades spread out in a substantially conical shape are provided, and the slope of the lower part of the stirring blade is set to be the same as or larger than the slope of the eccentric tilting shaft, thereby improving the cleaning effect and eliminating uneven cleaning. This has the effect of making laundry work easier.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a centrifugal dehydrating washing machine according to an embodiment of the present invention;
FIG. 2 is a longitudinal sectional view of the washing tub of the centrifugal dehydrating washing machine, and FIG. 3 is a longitudinal sectional view of the washing tub of the conventional centrifugal dehydrating washing machine. 1...Washing tub, 6...Washing basin, drive shaft, 8
...... Eccentric inclined shaft, 9... Stirring blade. Name of agent: Patent attorney Toshio Nakao and 1 other person i2
figure

Claims (1)

[Claims] A stirring blade provided at the inner bottom of the washing tub, and an eccentric inclined shaft that rotatably supports the stirring blade and rotates eccentrically, and the stirring blade is provided with a plurality of stirring blades that spread approximately conically from the top to the bottom. A washing machine in which the inclination of the lower part of the stirring blade is approximately the same as or several degrees larger than the inclination of the eccentric inclined shaft.