JPS6022943Y2 - electric washing machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a new electric washing machine that employs a so-called rubbing washing method.

Up to now, a large number of various electric washing machines have been proposed, but most of them are of the vortex type in which a vortex is generated by a stirring impeller called a pulsator.

However, this whirlpool type washing machine has essential drawbacks such as severe damage to the fabric and the tendency for laundry to get tangled.

On the other hand, resource conservation measures are being promoted from various aspects including water conservation, but as long as this whirlpool method is adopted, there is a limit to this.

This idea was created in view of the drawbacks of the whirlpool method described above.The purpose of this design is to use a rubbing method instead of the whirlpool method to minimize damage to fabrics, tangles, etc., as well as to save water and improve cleaning. An object of the present invention is to provide an electric washing machine whose performance can be improved.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, this washing machine has an outer case 1 made of a decorative panel, etc., and this outer case 1 has a lower chamber 4 and an upper chamber, as is known, with a partition plate 2 and a seal backing 3. 5
It is divided into.

A reversible rotary electric motor 6 is placed in the lower chamber 4 via an appropriate number of support springs 7, while a washing tub 8 is housed in the upper chamber 5, which is inserted through the seal backing 3. An electric motor 6 projecting into the upper chamber 5 is supported by a drive shaft 9.

In this case, the drive shaft 9 consists of a double shaft, that is, an inner shaft 10 and a cylindrical outer shaft 11 arranged around the inner shaft 10.
0 is integrally connected to the clutch body 13 of the electric motor 6 via a spring pin 12, while the outer shaft 11 is selectively connected to the clutch body 13 via a one-way clutch, for example, a spring clutch 14. It has become.

As shown in FIG. 2, the spring clutch 14 consists of a coil spring wound with a diameter slightly smaller than that of the outer shaft 11 and the clutch body 13, and this spring straddles the outer periphery of both. It is fitted in such a way that it fits.

Here, if it is assumed that the spring clutch 14 is wound clockwise when viewed from above in FIG. The outer shaft 11 acts like a winding to connect the two, but when the electric force 6 rotates to the left, it is slightly unwound, so the outer shaft 11 is connected to the clutch body 13.
It will be dissociated from.

Note that 15 is a known brake device that is turned on and off according to the driving torque of the electric force 6, and 16 is a brake drum disposed around it.

The washing tub 8 has a bottomed cylindrical outer tub 1 made of hard synthetic resin.
7, and a laundry container 18 made of an elastic and flexible material such as soft rubber and mounted in the outer tub, and the outer tub 17 is connected to the outer shaft 11 via a coupling 19 at the bottom thereof. Supported.

The washing container 18 is attached so as to be suspended around the opening periphery of the outer tub 17, and a folded part 20 having a V-shaped cross section is formed in an annular shape along the upper part of the peripheral wall thereof.
Further, a plurality of annular folds 21 are concentrically formed on the bottom wall.

Note that the folded portion 20 may be formed in a so-called bellows shape, and the pleats 21 may be formed in a spiral shape.

A pressing means 22 is provided between the outer tub 17 and the washing container 18, which rolls along the outer peripheral wall of the washing container 18 while pressing the washing container 18 from the outside and elastically deforming the washing container 18.

This pressing means 22 actually consists of a cylindrical roller member having a vertical axis of rotation, and although only one side is shown in FIG. 1 for convenience of explanation, in this embodiment, it is symmetrical as shown in FIG. 3. It is set up as follows.

These pair of roller members 22,22 are each rotatably supported at both ends of a rotating arm 23 which is pivotally supported on the upper end of the inner shaft 10 via a suitable bearing, and is equipped with, for example, a belt transmission mechanism. It is designed to be driven by electric power 6 through the motor.

That is, a first pulley 24 is fixed to the inner shaft 10, while the roller member 22 has a roller shaft 25, and the first pulley 24 is connected to the roller shaft 25 via a belt 26.
4 and a second pulley 27 operatively connected to the outer tank 17
A planetary gear 29 is provided which meshes with an annular guide gear 28 provided on the bottom wall of the carrier.

Therefore, when the inner shaft 10 is rotated by the electric motor 6,
The driving force is transmitted to the roller shaft 25 via the eleventh second pulleys 24, 27 and the belt 26, whereby the roller member 22 is guided by the guide gear 28 via the planetary gear 29 and revolves while rotating. .

Further, a slider 31 is fitted in the bearing housing 30 for the inner shaft 10 of the rotating arm 23, and a disk-shaped support plate 32 is attached to support the bottom of the washing container 18 via the slider 31. .

The diameter, number, etc. of the roller members 22 can be arbitrarily determined in relation to the internal capacity of the washing container 18 so that a good washing effect can be achieved.

Reference numeral 33 is a balance ring attached to the upper opening of the washing tub 8.

Next, the operation of this washing machine will be explained.

First, the laundry is put into the washing container 18 and water is poured into it. In this case, unlike the sliding type, a large amount of water is not required, and the amount of water that is sufficient to soak the laundry is sufficient.

Then, when a switch (not shown) is operated to rotate the electric motor 6 to the left, the spring clutch 14 is disengaged as described above, so that only the inner shaft 10 rotates.

Therefore, rotational driving force is transmitted to the roller shaft 25 via the first and second pulleys 24, 27 and the belt 26,
The roller member 22 is connected to the guide gear 28 via the planetary gear 29.
The laundry container 18 revolves around the axis of the container 18 with rotation while elastically deforming the outer circumferential wall of the laundry container 18 as shown in FIG.

Due to the pressing force of the roller member 22, the laundry is washed by rubbing or pressing.

According to this washing method, compared to the conventional whirlpool method, there is almost no damage or tangles to the cloth, and there is no uneven removal, resulting in superior cleaning performance.

In addition, powder layers made of animal and vegetable fats and oils, which were considered difficult to dissolve using the vortex method, can also be easily dissolved.

Regarding the durability of the washing container 18 due to repeated deformation, since the container 18 is provided with a folded portion 20 on the surrounding wall and an annular fold 21 on the bottom wall,
It has a structure that is easily deformed by the pressing force of the roller member 22 and has excellent durability against repeated use without causing excessive stress to be locally concentrated.

Dewatering is performed by rotating the electric motor 6 in the reverse direction.

That is, when a switch (not shown) is operated to rotate the electric motor 6 to the right, the spring clutch 14 wraps around the outer shaft 11 and the clutch body 13 to connect them.

Therefore, the inner shaft 10 and the outer shaft 11 are both rotated in the same direction and at the same speed, and the outer tub 17, the washing container 18, and the roller member 22 are integrally rotated at a high speed.

Due to the centrifugal force during this high-speed rotation, the washing water in the washing container 18 is discharged into the upper chamber 5 through the gap between the upper opening periphery and the balance ring 32, and is discharged from the drain port 34 provided in the partition plate 2. It is discharged to the outside.

By repeating this several times, rinsing and dehydration can be performed in the washing container 18.

Although not shown in this embodiment, the laundry container 1
8, a suitable lid can be detachably attached thereto.

Also, unlike this embodiment, on the outside of the laundry container 18,
A pressure plate that linearly reciprocates inward of the container may be provided, and the outer peripheral wall of the laundry container 18 may be elastically deformed by this pressure plate.

As is clear from the description of the above-mentioned embodiments, according to this invention, laundry can be washed in a washing container by massaging or pushing, and therefore, compared to the conventional whirlpool method, it is possible to wash the laundry in a washing container. High cleaning ability with almost no damage or tangles, and no uneven removal etc. can be obtained.

In this case, the laundry container is made of an elastic and flexible material such as soft rubber, and has a bellows-shaped folded part on its peripheral wall, and an annular folded part on its bottom wall. Or, since the threaded pleats are formed, it exhibits excellent durability against repeated deformation due to the pressing force of roller members, etc. This allows the product to maintain the necessary durability as a product without impairing the desired washing performance. can get.

In addition, this washing method has excellent detergent solubility, so it is easy to use various types of powder detergents that are difficult to dissolve using the whirlpool method.

On the other hand, when washing and rinsing, there is no need to use a large amount of water unlike the whirlpool type, and the amount of water used is enough to soak the laundry, making it possible to save a large amount of water. This makes it possible to downsize the entire device, allowing for a compact design as a whole.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of an electric washing machine according to this invention, FIG. 2 is a drawing for explaining a spring clutch, and FIG. 3 is a cross-sectional view taken along the line ■-■ in FIG. 1. In the figure, 1 is an outer box, 6 is an electric motor, 8 is a washing tub, 17 is an outer tub, 18 is a washing container, 20 is a folded portion, 21 is a pleat, and 22 is a pressing means (roller member).

Claims (1)

[Claims for Utility Model Registration] An electric motor, an outer tank supported on the drive shaft of the motor, a laundry container made of an elastic and flexible material such as soft rubber suspended in the outer tank, a pressing means consisting of a pressing roller or a pressing plate disposed so as to partially elastically deform the outer circumferential wall from the outside of the laundry container inward in the radial direction; a driving force transmitting means for converting the rotating motion into a rotational motion or a linear reciprocating motion along the radial direction of the laundry container and transmitting the converted force to the pressing means, the pressing means pushing the laundry container inwardly from the outside. An electric washing machine that washes the laundry in the container in a massaging or push-washing manner by pressing and elastically deforming the container. The container is characterized by comprising a folded part formed in an annular shape and having a locking end with respect to the outer tank, and a wall formed in an annular or spiral shape around the axis of the container at the bottom part. Electric washing machine.