JP2505723Y2 - Dewatering washing machine water tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a water receiving tub of a dehydration washing machine used in general households, and more particularly to reduction of draining noise due to residual water during dehydration.

2. Description of the Related Art The structure of a conventional dehydration washing machine will be described with reference to FIGS. In the figure, the water receiving tank 2 is arranged in the main body 1, and the water receiving tank 2
The lower reinforcing plate 3 is suspended from above the main body 1 by a suspension rod 4. The water receiving tub 2 has a washing / dehydrating tub 5, and rotary blades 6 are arranged on the inner bottom. Reference numeral 7 is a motor for rotating the rotary blade 6 or the washing / dehydrating tank 5 via the belt 8 and the pulley 9, and the rotation of the rotation is switched by the mechanical section 10.

FIG. 5 shows details of the spindle 11 part. 12 is a washing and dewatering tank 5
This is a dehydration reinforcing flange that reinforces the bottom portion of and is rotated by being fixed to the main shaft 11 by the nut 13. The water 15 accumulated in the bottom 14 of the water receiving tank 2 is drooped from the dehydration reinforcement flange 12
When the dewatering reinforcement flange 12 rotates and accumulates between the reinforcement ribs 17 and the water, the water 15 flows along the reinforcement ribs 17 and the like in the outer peripheral direction and hits the inner peripheral wall 18 of the water receiving tank 2 to generate a collision noise. . The water contained in the clothes 19 gradually accumulates in the bottom 14 of the water receiving tank 2 during the dehydration, so that the above-mentioned water collision sound continues forever and becomes a noise.

Problems to be Solved by the Invention With such a conventional configuration, every time water accumulated in the bottom portion 14 of the water receiving tank 2 is dewatered, it is transmitted through the dewatering reinforcing flange 12 and is swayed out by centrifugal force in the outer peripheral direction. Water 15
Collided with the inner wall 18 of the water receiving tank 2 and made a loud impact sound. The larger the capacity of washing machines in recent years, the more water tank 2
The space between the bottom portion 14 and the dehydration reinforcing flange 12 is made small to secure the volume. Therefore, the water 15 easily propagates through the dehydration reinforcing flange 12 and the above-mentioned noise generation factor is large.

The present invention solves such a problem, and an object of the present invention is to eliminate the noise caused by the collision sound of water, which is caused by the water being spouted in the outer peripheral direction during the spin-drying rotation, and to obtain a quiet dehydration.

Means for Solving the Problems In order to achieve the above object, the present invention is provided with a drainage channel and a plurality of projecting annular ribs on the outer periphery of a main shaft of a water receiving tub bottom of a dewatering washing machine. Notches are provided, and the notches of the annular ribs are provided at positions that do not face the notches of the adjacent annular ribs. With the above configuration of the present invention, the water at the bottom of the water receiving tank is By trying to flow toward the center is stopped by the annular rib, the water does not flow to the dehydration reinforcement flange other than the water in the annular rib and does not flow away due to the centrifugal force of the dehydration rotation, The sound of collision with the water receiving tank is eliminated.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

In the figure, projecting annular ribs 19 and 20 centering on the main shaft 11 of the inner bottom portion 14 of the main body 1 internal water receiving tank 2 are provided. The annular ribs 19 and 20 are double ribs in this embodiment, but a plurality of ribs may be formed. The annular ribs 19 and 20 are provided with notches 21 and 22, respectively, and the angles are offset so that the notches 21 and 22 are not formed at the same position. Washing and dehydration tank 5
Drain the water after washing and washing the clothes 19 inside,
Much water 15 still remains on the bottom 14 of the water receiving tank 2 at the time of shifting to dehydration. As a result, water 15
However, as the dehydration rotation starts, the water in the annular ribs 19 and 20 is transmitted to the outer periphery through the hanging flange 16 and the reinforcing rib 17 of the dehydration reinforcing flange 12 as in the conventional case. , 20, and water on the outer circumference from the annular ribs 19,20
No. 23 is regulated from entering the central part, so that the continuous generation of water is prevented. Also, even if it enters through the notches 21 and 22 provided partially, the annular rib 19 on the inner side
Intrusion is regulated by. The notches 21 and 22 are annular ribs 1.
It is also a drainage channel that was set up so that there would be no residual water within the 9,20. When the washing / dehydrating tub 5 rotates in the direction A, the internal air flow is changed to B,
It is generated like C, so that the water 23 on the bottom 14 flows in the direction of the arrow D and tries to flow clockwise toward the center, but it flows along the outer periphery of the annular rib 20 and enters the center. Is being prevented. FIG. 3 is the figure. Notches 21,22
The width of the area should be wide enough to allow water to flow, and the narrower the area, the greater the effect of preventing water from flowing to the center.
Even if it is not, the effect can be exhibited, but sand etc. are annular ribs 19, 20
It is desirable to form the notches 21 and 22 so that the notches cannot be accumulated inside.

Effect of the Invention According to the present invention, a drainage channel and a plurality of projecting annular ribs are provided on the outer periphery of the main shaft at the bottom of the water receiving tub of a dehydration washing machine.
Notches are provided in each annular rib, and the notches of the respective annular ribs are provided at positions that do not face the notches of the adjacent annular ribs. Impact noise can be prevented, and even if there is residual water in the water receiving tank, it is possible to prevent water from coming into contact with the dehydration reinforcing flange with the annular rib and being spit out to the outer periphery by centrifugal force. It is possible to provide a washing machine.

[Brief description of drawings]

FIG. 1 is a sectional view of a dewatering washing machine showing an embodiment of the present invention, FIG. 2 is a sectional view of a bottom portion of a water receiving tank having the annular rib, and FIG. 3 is a plan view of the annular rib. Is a sectional view of a conventional dewatering washing machine, and FIG. 5 is a sectional view of the bottom portion of the water receiving tank. 2 ... water receiving tank, 19,20 ... annular ribs, 21,22 ... notches.

Claims (1)

(57) [Scope of utility model registration request] 1. A drainage channel and a plurality of projecting annular ribs are provided on an outer peripheral portion of a main shaft of a water receiving tank bottom of a dewatering washing machine, each annular rib is provided with a notch, and each annular rib is cut. The notch is a water receiving tank of the dehydration washing machine provided at a position not facing the notch of the adjacent annular rib.