JPH0471594A - washing machine - Google Patents

Abstract

PURPOSE:To improve the cleaning power by generating a water stream not only in the lateral direction but in the longitudinal direction by installing a pulsator having spiral grooves or blades at the center part of the inner bottom of a washing tank. CONSTITUTION:When a pulsator 1 is revolution-driven by a motor in a washing tank 3, also a blade 3 revolves, and a water stream in the rising or lowering direction is generated, besides in the lateral direction. It is necessary to provide roundness for the blade 2, in order to prevent clothes from being damaged, and in any case, a washing machine having the superior cleaning power is obtained when spiral blades 2 are properly installed on the pulsator 1. Though the pulsator 1 is revolution-driven when the motor revolves, a water stream which revolves in the lateral direction is generated by the spiral grooves or blades which are installed on the pulsator motor 1, and at the same time, a rising stream or lowering stream is generated, and the cleaning power can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a washing machine with high cleaning power, and particularly to a washing machine in which a specially constructed pulsator is installed upright in the center of the inner bottom of the washing tub. It is related to.

[Conventional technology]

A conventional pulsator structure is known, for example, as described in Japanese Patent Application Laid-open No. 137090/1983. In this case, the height of the pulsator is adjustable, but depending on the pulsator, the water flow can only be generated in the lateral direction.

[Problem to be solved by the invention]

In order to improve cleaning power, the direction of water flow in the washing tub is not unidirectional (it is desirable to have water flow in multiple directions at the same time, but conventional washing machines have not taken this into consideration. That's what it is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a washing machine that can improve cleaning power by generating water flow not only in the horizontal direction but also in the vertical direction at the same time.

[Means to solve the problem]

The above object is achieved by erecting a pulsator having spiral grooves or wings at the center of the inner bottom of the washing tub.

[Effect]

When the motor rotates, the pulsator is rotated accordingly, but depending on the spiral grooves or blades provided on the pulsator, not only a horizontally rotating water flow is generated, but also an upward flow or a lower flow. As a result, cleaning power is improved.

(Example〕 The present invention will be explained below with reference to FIGS. 1 to 3.

First, the pulsator according to the present invention will be explained.
The figure shows the structure of one example. As shown in the figure, the pulsator 1 itself has a cylindrical shape, but spiral wings 2 are provided on the outer surface of the pulsator 1. FIG. 2 shows a cross section of the pulsator when it is installed upright in the washing tub. Pulsator 1 in washing tub 3
When the blade 2 is rotationally driven by the motor, the blade 2 also rotates with the rotation, so that it can be rotated not only in the lateral direction but also in the upward direction (in the illustrated example, when rotating clockwise) or in the downward direction (
In the illustrated example, it is easy to see that a water flow also occurs during counterclockwise rotation. Care must be taken to give the blades 2 a rounded shape so as not to damage the clothes, but in any case, if the pulsator 1 is appropriately provided with spiral blades 2, a washing machine with excellent detergency can be obtained. It is something.

FIG. 3 also shows the structure of a pulsator in another example. As shown in the figure, a spiral groove 5 is provided on the outer surface of the pulsator 4 in this example, but even with such a structure, the same effect as in the previous case can be expected. ing.

〔Effect of the invention〕

As explained above, according to the present invention, since it is possible to generate water flow in the vertical direction simultaneously in the horizontal direction, a washing machine with excellent detergency can be obtained.

[Brief explanation of drawings]

Figures 1 and 3 are views showing the structure of a pulsator according to the present invention, and Figure 2 is a cross-sectional view of the pulsator shown in Figure 1 when it is installed upright in a washing tub. It is a diagram. 1.4... Pulsator, 2... Feather, 3... Washing tub, 5... Groove. Patent Applicant Hitachi Communication Systems Co., Ltd. Agent Patent Attorney Masaru Akimoto 1n

Claims (1)

[Claims] 1. A washing machine having a structure in which a pulsator with spiral grooves or blades is installed in the center of the inner bottom of the washing tub.