JPS59111792A - Washer - 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 [Technical Field of the Invention] The present invention relates to a washing machine in which an agitator disposed inside a tub has been improved.

[Technical background of the invention]

BACKGROUND ART Conventionally, it is well known that a washing machine has a structure in which a pulsator is disposed at the inner bottom of a tub, and the rotation of the pulsator forms a swirling water flow in 4Q to wash laundry.

[Problems with background technology]

However, in the above-mentioned conventional method, since washing is carried out under water using only swirling water, the laundry tends to be strongly twisted, and the washing effect is unsatisfactory, such as uneven washing.

(Object of the invention) The present invention has been made in view of the above circumstances, and therefore, its purpose is mainly to improve the washing ffJ effect.
Furthermore, it is an object of the present invention to provide a washing machine which can also stabilize the rotation of the agitator.

[Summary of the invention]

The present invention provides an agitation body disposed in 8 (5) of A.a. It consists of a rod-shaped protrusion that protrudes higher, and this bank stirring body can be rotated in forward and reverse directions for washing, making the water flow more complicated, and making it possible to wash by pushing or shaking instead of washing by running water. Furthermore, the first feature is that the agitation body is rubbed and washed, and furthermore, a weight member is provided over the entire outer periphery of the agitation body.
The second feature is that the rotational balance of the stirring body can be improved by this.

[Embodiments of the invention]

Hereinafter, the present invention will be applied to a dehydrating and washing machine and its first embodiment will be explained with reference to FIGS. 1 to 4. First, in FIG. There is an elastic suspension I
The water receiver 413 is elastically suspended via J3 (12),
A motor 4, a t1 structure 5, a belt transmission mechanism 6, etc. are disposed at the outer bottom of the water receiving tank 3. Furthermore, a rotating tank 7 that serves as a washing tank and an I-tax water tank is disposed inside the water receiving tank 3, and an agitator 8 is disposed at the bottom of the rotating tank 7, and a liquid is supplied to the upper opening edge. A balance ring 10 enclosing a balancer 9 is provided. The rotating tank 7 is IO!
Rotation I of lateral part 5? 1Il111, and the stirring body 8
is connected to an IYi stirring shaft (not shown) which is attached to the mechanism section 5 via a speed reduction mechanism 12 disposed at the inner bottom of the rotation (1 shift).

Therefore, the mechanism section 5 has a clutch device 4vJ13 and C
The clutch mechanism 13 selectively transmits the rotational power of the motor 4 to the stirring shaft and the rotating shaft 11, which rotates the stirring body 8 during washing, and rotates the rotating tanks 7 and 1' during washing. The stirring body 8 is rotated integrally. Further, the stirring body 8 is configured to repeat forward and reverse rotations, for example, it is set to repeat three rotations in the forward direction, then reverse and rotate three more times in the opposite direction. There is.

Now, to describe the specific structure of the stirring body 8, in FIGS. 2 and 3, 14 is a base part, which is formed in a circular shape large enough to cover almost the entire circumference of the inner bottom of the rotating tank 7. The center portion thereof is formed to bulge upward, and the bulge portion 14a surrounds the reduction gear M412. A shaft connecting portion 15 is installed at the tip of this raised portion 14a, and an output shaft 12a of the speed reduction mechanism 12 is connected to this shaft connecting portion 15. 16 is the wing part,
This is carried out at three locations on the base portion 14 from the central raised portion 14a to the base portion 14, respectively. The third part is formed to extend radially to near the periphery of the base part 14 and protrude from the base part 14.
'There is. Reference numeral 17 denotes a rod-shaped projection, which is located at a portion 1, for example 3
The rod-shaped protrusion 17 is provided with a protruding portion that extends higher than the wing portion 16, and the rod-shaped projection 17 is rotated 1e.
It extends to near the opening of 7. Further, two annular ribs 18 and 19 are provided on the lower surface of the outer periphery of the agitating body 8, that is, the outer periphery of the base portion 14 in a double wall shape, and the ribs 18 and 19 are provided with a wall that closes the space between them. An annular plate 20 is attached to the stirrer 8, and the ribs 18, 19 and the plate 20 form an annular storage portion 21 extending over the entire outer circumference of the stirring body 8. Reference numeral 22 is a liquid such as taro water stored in the storage section 21, which is filled to about 2/1 to 2/3 of the capacity of the storage section 21.

Now, the operation of the above configuration will be explained. Now, considering the washing time when the agitator 8 is rotated, in this case, the washing water contained in the rotary tank 7 is generally turned into a swirling water stream by the blades 16, but some of the washing water is turned into a swirling water flow by the blades 16J. : Highly protruding rod-shaped protrusion 1
7 changes the eddy water flow and forms a turbulent water flow. On the other hand, the laundry A (see figure m4) stored in the rotating tub 7 together with the washing water is flowed in a complicated manner by the rough water flow caused by the eddy water flow and turbulent water flow, and as a result, the laundry A itself is It changes in a complicated manner and causes twisting washing and massaging by itself, which increases the cleaning effect of washing with water. In particular, as the agitator 8 rotates, the rod-like protrusions 17 circulate in the rotating tub 7 as shown by the arrows in FIG. , and furthermore, an external force is applied to shake the laundry Δ, that is, shaking is also caused. Moreover, the presence of the bar-like protrusions 17 increases the contact rate of the agitator 8 as a whole with respect to the washing 12ff t+A, thereby increasing the scrubbing effect. Also, when the agitator 8 reverses from forward rotation to reverse rotation, or from reverse rotation to forward rotation, the water flow reverses with a slight delay in time, but during this transition, the water flow to the laundry is temporarily The rod-like protrusion 17 of the agitator 8, which is in a substantially stopped state and has already been reversed and is in a rotating state, acts to squeeze the laundry A in this substantially stopped state more reliably and strongly than when it is flowing. The above-mentioned pressing and scrubbing are extremely effectively promoted, and a high overall cleaning effect can be obtained. Furthermore, in the case of this embodiment, since the reversal period of the agitator 8 is set to approximately 3 rotations, the washing by pushing, shaking, and scrubbing can be performed evenly and sufficiently on the entire laundry.

However, this reversal period is sufficiently effective if it is at least one rotation or more.

By the way, as mentioned above, when the stirring body 8 is rotated, since the rod-shaped protrusion 17 is located at an eccentric portion of the stirring body 8, rotational vibration etc. are likely to occur in the stirring body 8, and this causes eccentricity in the bearing portion. There is a concern that this may cause wear and even vibration in the entire washing (W) machine. As a result, the rotational balance of the stirring body 8 is improved, thereby increasing the stability of the rotation of the stirring body 8 (1), that is, preventing rotational vibration of the stirring body 8 (1), and increasing uneven wear of the bearing portion. can reliably prevent the occurrence of vibrations in the entire washing machine.

In addition, when unbalanced rotation occurs in the rotating tank 7 during dehydration in which the rotating tank 7 and the stirring body 8 are integrally rotated at high speed, the unbalanced rotation is caused by the balance ring located at the top of the rotating tank 7. As is well known, this is corrected by the liquid balancer 9 of 10, but in this embodiment in particular, the rotational stabilization effect due to the weight of the liquid 22 in the agitator 8 and located annularly at the bottom of the rotating tank 7 is corrected. By obtaining -C, the rotational stability of the rotating tank 7 is further promoted throughout the entire process from startup to high-speed rotation of the rotating tank 7, and as a result, the unbalance of the rotating tank 7 can be suppressed to a minimum. This can be combined with the balance correction effect of the liquid balancer 9 of the balance ring 10 to extremely effectively prevent unbalanced rotation of the rotating tank 7. Moreover, in the case of this embodiment, the liquid 22 flows in the direction of correcting the unbalanced rotation within the storage portion 21 in the same manner as the action of the balancer 9. It has a rotation correction effect, especially since the liquid 22 is located at the bottom of the rotating tank 7. If done from both sides, the corrective effect will be extremely good.

In the above embodiment, the liquid 22 is used as an example of the weight member, but the weight member may be J shown as the second embodiment of the present invention.
As shown in FIG. 5, a large number of spheres 23 such as steel balls may be used, and in this case as well, the same functions and effects as in the first embodiment can be obtained. In addition, in the above-mentioned first and second embodiments, the liquid 22 and the sphere 23 are used as weight members, which also have the effect of correcting the unbalanced rotation of the rotating tank 7, but when such a corrective effect is not required, The ring member is made of circular concrete.
In this case as well, it is possible to prevent the rotational vibration of the stirring body 8 and to stabilize the rotation of the rotating tank 7. Since there is no problem even if it is arranged on the outer periphery, the storage section 21 can be omitted.

In addition, the present invention is not limited to the embodiments described above and illustrated in the drawings, and includes a two-tank washing machine in addition to the dehydrating and washing machine IRE 4M. It can be implemented with various modifications without departing from the gist, such as being applicable to machines as well.

〔Effect of the invention〕

As is clear from the above description, the present invention includes a stirring body disposed inside a tank that includes a base part, a wing part protruding from the base part, and a part offset from the center of rotation of the base part. The agitator has a rod-like protrusion that protrudes higher than the wing section, and the agitator is rotated in forward and reverse directions for washing, making the water flow more complex than the conventional swirling water flow. In addition to increasing the cleaning effect of washing14, in particular, the external force of the rod-like protrusions can be applied to the laundry to push, wash, and scrub the laundry, greatly increasing the overall cleaning effect. Since the twisting member is installed over the entire area, it is possible to improve the rotational balance of the stirring body and greatly stabilize the rotation. It has various excellent effects, such as being able to reliably prevent the occurrence of vibrations in the entire washing machine.

[Brief explanation of drawings]

The drawings show an embodiment in which the present invention is applied to a dewatering/washing machine, and FIGS. 1 to 4 relate to the first embodiment, and FIG. 1 is a longitudinal side view of the whole. , FIG. 2 is an enlarged vertical pi side view of the main part, FIG. 3 is an enlarged plan view of the stirring body, FIG. 4 is a schematic plan view of the rotating tank portion for explaining the operation, and FIG. FIG. 2 is a diagram corresponding to FIG. 2 regarding two embodiments; In the figure, 7 is a rotating tank, 8 is an agitator, 14 is a base part, 16 is a wing part, 17 is a rod-shaped projection, 21 is a storage part, 22 is a liquid (weight member), and 23 is a sphere (weight member) It is. Applicant: Tokyo Shibaura Electric Co., Ltd. No. 2

Claims (1)

[Claims] 1. A stirring body disposed inside the Wj includes a base part, a wing part protruding from the base part, and a part protruding higher than the wing part at a position offset from the center of rotation of the base part. The agitator is made up of rod-shaped protrusions, and the agitator is rotated in forward and reverse directions (as in washing clothes), and the agitator is rotated forward and backward (to wash the clothes).
A washing machine B m characterized by being provided with a C weight member.