JPS594635Y2 - Single tank fully automatic washing machine - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a single-type fully automatic washing machine, and more particularly to a single-type fully automatic washing machine with an improved basket that also serves as a washing and dehydration tank.

FIG. 1 and FIG. 2 show the construction of a conventional example of this type of fully automatic washing machine.

In this figure, only the construction for drainage and dehydration that is directly related to this invention is shown, and other constructions related to washing operations are omitted for the sake of simplifying the explanation. The same applies to operation.

In Fig. 1, a reinforcing plate 2 with a large hole 2a formed in the center is fixed to an outer casing 1 of the washing machine, and a lower main plate 3 is attached to the reinforcing plate 2, a damper 4 having a spherical seat structure, and a hanging rod. It is suspended and supported by 5.

Further, in the upper space 6 in the outer casing 1, there is a basket main body 7A whose diameter gradually increases upward and which also serves as a washing and dehydrating tank, and a drainage guide ring provided at the upper opening edge of the basket main body 7A. A cylindrical basket 7 is housed in the basket 7, which contains washing water 9 and laundry 10.
has been introduced.

Furthermore, a rotating shaft 11 provided at the bottom of the basket 7
are upper and lower bearings 1 fixed to the lower main plate 3;
2.13, and can be rotationally driven by an electric motor (not shown) via a pulley 14 attached to the end of the shaft. The space between the partition plate 15 and the rotating shaft 11 is sealed by a wavy backing 16 and a mechanical seal 17 to prevent water leakage.

In a conventional washing machine with this configuration, when a predetermined washing operation such as washing and rinsing for the laundry 10 in the basket 7 is completed, the washing water 9 is drained and the laundry 10 is drained.
The dehydration process of 0 is performed as follows.

That is, the banquet 7 is rotated until the centrifugal force causes the washing water 9 to rise along the inner surface of the basket, which has a bulging top, and then passes through the drainage guiding ring 8 to the partition plate 15.
The water contained in the laundry 10 is also drained to the outside in the same way by letting it flow upward and draining it to the outside through a drain pipe (not shown), and then continuing to rotate.

However, when treated in this way, the dehydrated laundry v
Since a small amount of moisture still remains in the IJ 10, it is pressed against the inner surface of the basket 7 as shown in FIG.

That is, when observing the movement of the laundry 10 in this case, the laundry 10 first moves without the basket 7 being rotated.
When there is washing water 9, it floats at an arbitrary position in the washing water 9, but as the basket 7 rotates, it starts to shift toward the inner circumferential surface, and as the washing water 9 drains, this water gradually floats in the washing water 9. It can be seen that it moves upward along the inner circumferential surface and becomes the state shown in FIG.

The state shown in FIG. 2 means that the laundry 10 is more likely to concentrate near the drainage guiding ring 8 than on the bottom side of the basket 7, especially when the laundry 10 is a small item such as a handkerchief. Sometimes this is the drainage guide ring 8
There is a risk that the inlet may become clogged, reducing drainage efficiency.

And from another perspective, laundry being dehydrated 1
0 is evenly pressed against the inner circumferential surface of the basket 7, no particular problem arises, but in practice,
Variations occur depending on the size, weight, etc. of the laundry 10. If the laundry 10 is crimped unevenly as shown in Fig. 2, the basket 7 will be mechanically unbalanced, and an unbalanced centrifugal force will be generated as it rotates. This causes the basket 7 to start swinging, and in extreme cases, the outer edge of the drainage guiding ring 8 may move toward the housing 1.
It even came into contact with the metal, preventing smooth rotation.

Although it is unavoidable that the laundry 10 is shifted in the basket 7 as described above, if we consider the position of the shift in relation to the vibration of the basket oscillation, the position of the shift is at the upper part of the basket 7. It is clear that the closer the position is to the bottom, the smaller the moment force acting on the swinging vibration can be made, that is, the amplitude of the swinging vibration can be reduced, and the above-mentioned drawbacks can be solved.

This idea focuses on this point, and even if the laundry in the basket is shifted to a certain extent during drainage and dehydration processing, it suppresses the vibration of one swing of the basket to ensure smooth rotation. Hereinafter, an embodiment of a one-type fully automatic washing machine according to this invention will be described with reference to FIGS. 3 to 6.

Figures 3 and 4 show the structure of a basket to which an embodiment of this invention is applied, and since the main components of this invention are Basquera 1~, these figures only show the cylindrical basket. The other components are the same as before.

That is, in this FIG. 3, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts, and in this invention, the inner circumferential surface of the basket 7 is located approximately at the vertically intermediate portion (slightly above the intermediate portion), that is, the basket body 7A. A plurality of inwardly directed protrusions 18 are integrally provided on the inner circumferential portion below the drainage guiding ring 8 and above the vertically intermediate portion.

The shape of the plurality of protrusions 18 of the levers may be, for example, hemispherical, and their distribution may be in a single row as shown in FIG. 4.

To give concrete numerical values, the difference in radius between the upper and lower parts of the basket 7 is approximately 5 mm, and therefore the height of the protrusion 18' protruding from the inner circumferential surface of the basket 7 is approximately 5 mm for the following reasons.
A length of approximately 20 mm is sufficient.

Therefore, in the basket 7 according to this embodiment having the protrusions 18 circumferentially circumferentially in this manner, washing operations, drainage, and dewatering processes are performed in the same way as in the conventional example, but in this embodiment, the protrusions 18 are provided. Therefore, the laundry 10 that moves with the washing water 9 during draining and spin-drying is prevented from going over this protrusion 1B, and even if there is something that rarely goes over it, overall As shown in the figure, a large amount of water is concentrated from the protrusion 18 to the bottom.

In other words, the fact that the laundry 10 is unevenly distributed from the middle part where the protrusion 1B is protruded to the bottom part means that the rotation of the basket 7 during the drainage and dehydration process is smooth, which is different from the conventional one. Since the moment force that affects such swing vibration is reduced, the fear that the drainage guide ring 8 will come into contact with the inner surface of the outer casing 1 during rotation can be eliminated.

Furthermore, if the 18 rows of projections are formed in multiple rows as shown in FIG. 5, the effect of concentrating the attachment position of the laundry 10 on the lower part during dehydration becomes even more reliable, and this effect is The same applies when 18 are arranged randomly.

Furthermore, as shown in FIG. 6, by arranging a plurality of rows of protrusions so as to be inclined toward the direction of rotation, it is possible to not only prevent swinging vibrations of the basket 7 but also to prevent washing. This also improves work efficiency during cleaning.

That is, during washing and rinsing, the basket 7 is stopped and the washing water 9 and the washing e 710 are stirred by a fan (not shown), so that the laundry 10 in contact with the inner surface of the basket rack 1-7 is In Figure 6, when moving to the right, it sinks downward along the 18 rows of protrusions, and when moving to the left, it floats upward, ensuring even and effective stirring. This will ultimately improve work efficiency.

In each of the above embodiments, the protrusions 18 are integrally stamped out from the basket 1, but they may be at least integrally attached, for example, by individually attaching them to predetermined inner positions of the basket 7 of the conventional structure. It is something.

As described in detail above, according to this invention, in the inner peripheral part of the basket main body which also serves as a washing and dehydrating tank, below the upper opening discharge part and above the vertical middle part,
The protrusions that prevent laundry from rising during spin-drying are protruded inward and along the circumferential direction, which prevents laundry from sticking to the top of the basket during spin-drying. In order to reduce the swinging vibration of the I., it eliminates the habit of the outer edge of the basket coming into contact with the inner surface of the casing, and has the feature of improving dewatering efficiency.Despite its simple structure, the effect is It is extremely large.

[Brief explanation of drawings]

Fig. 1 is an overall longitudinal sectional side view showing the configuration of a conventional single-type fully automatic washing machine, Fig. 2 is a longitudinal sectional side view showing the same basket taken out, and Fig. 3 is an implementation of Basquera l- to which this invention is applied. FIG. 4 is an explanatory view showing a protrusion portion developed from the above, and FIGS. 5 and 6 are explanatory views developed from the protrusion according to different embodiments of the above. 1...Washing machine outer casing, 7...Basket, 7A...
・Basket body, 8... Drain guide ring, 9...
Washing water, 10...Laundry, 1B...Protrusion.

Claims (4)

[Scope of utility model registration request] (1) In a one-type fully automatic washing machine having a cylindrical basket that gradually expands in diameter upward and that also serves as a washing and dehydration tank that drains water from an upper opening drainage section, the upper part of the basket main body of the basket is A type of device characterized by having a protrusion projecting inward and along the circumferential direction to prevent the laundry from rising during spin-drying on the inner periphery below the open drainage part and above the vertically intermediate part. Fully automatic washing machine. (2) The single-type fully automatic washing machine according to claim 1, wherein the protrusions are rows of protrusions. (3) The single-type fully automatic washing machine according to claim 2, characterized in that there are a plurality of rows of protrusions. (4) The single-type fully automatic washing machine according to claim 2 or 3, wherein the row of protrusions is inclined with respect to the direction of rotation of the basket.