JPS58152589A - Liquid agent automatic throwing apparatus of washer used as dehydrator - 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 The present invention relates to the structure of a balancer that is integrated with a balancer for automatic suppression of fabric softener and the like in a washing machine that also performs dehydration and washing.

In the past, efforts have been made to automate washing operations by integrating an automatic loading device for softening agent, etc., into a balancer for suppressing vibrations after spin-drying, using the centrifugal force generated by spin-drying rotation. For example, there are balancers that form a plurality of chambers that communicate with each other and form part of an automatic dispensing device for softening agent, etc., but balancers generally have two upper and lower chambers made of synthetic resin. The annular surrounding grooves are constructed by sealing a liquid such as salt water and welding them together in a liquid-tight manner.If this is formed as a part of the above-mentioned automatic feeding device mechanism for softening agent, etc., the mold The bottom surface of the balancer is likely to have an irregular shape. Then, clothes etc. in the washing and dehydration tank get caught in this irregularly shaped part during washing and dehydration.
There were problems such as damage to clothing, etc.

The present invention provides a balancer structure that solves this problem.

Hereinafter, the present invention will be explained in detail using a one-tub centrifugal dehydrating washing machine in which a balancer is provided with a part of an automatic injection mechanism for liquids such as fabric softener.

FIG. 1 shows an example of a single-tank centrifugal dehydrating washing machine, where 1 is an outer box, 2- is a washing/dehydrating tank, and 3 is a water receiving tank.

Laundry and detergent are put into the washing and dewatering tank 2, the time switch 4 is operated, the water supply valve 6 is opened, and water is injected through the water supply hose 6. When a certain amount of water enters, the motor 7 rotates the pulsator 1o via the pulley 8 and belt 9 to perform cleaning. Thereafter, after opening the drain valve 11 to drain the water, the rotational drive of the motor 7 is transmitted to the washing and dehydrating tank 2 by the washing and dehydrating switching mechanism section 16, which is rotated to perform dewatering by centrifugal force. In order to dampen the vibrations during dewatering, the vibration system is suspended from the outer box 1 by several hanging rods 13 via a vibration damper 12.

After dewatering, add water again, perform Susuki', drain, and dehydrate. Repeat this rinse cycle several times, then dehydrate at the end. These operations are automatically performed using the time switch 4.

On the other hand, in the case of a soft finish, it is necessary to add a softener during the final rinse. A part of the balancer 14 is integrally formed with a part of an automatic injection mechanism for softening agent, etc., and a container 16 which becomes a part of the automatic injection mechanism is detachably attached to the balancer 14, This allows the fabric softener to be added without interrupting the process from washing to dehydration.

Figures 2 to 7 are for explaining the specific structure and function of the balancer 14-kichi with an automatic loading device for softening agent, etc., and the loading container 16 attached thereto.
indicates the dehydration rotation direction, b indicates the liquid such as fabric softener, C
indicates each piece of cloth that is laundry. 17 is the input container 16
An injection hole 18 is formed in the center of the saucer portion.

Further, the charging container 16 is provided with a holding chamber A20 for holding softener, etc. at the time of stoppage inside thereof, and the charging container 15 is detachably attached to the balancer 14 by a hook 19. A substantially cylindrical or prismatic pipe 21 serving as a discharge port is provided on the side wall of the stop holding chamber A20, and communicates with a communication port A22 provided on the side wall of the balancer 14. On the other hand, inside the balancer 14, there is a water passage 26 filled with salt water, etc., and a holding chamber A2 during rotation, which constitutes a part of the feeding mechanism for softening agent, etc.
3. A holding chamber B24 during stoppage, a holding chamber B25 during rotation, etc. are formed, and are partitioned from the water passage 26 by partition walls A28 and B29. Three chambers are formed: a holding chamber B24 and a rotation holding chamber B25. Also, partition wall D
31, an outlet A27 provided by cutting out a part of the partition wall C30, an outlet B33 that communicates the outside of the balancer 14 with the holding chamber B25 during rotation, and the communication port A22, the input container 15 Holding chamber A2 when stopped
0, the three chambers of the balancer 14, and the outside of the balancer 14 are in communication. 34 is a partition E, which incompletely partitions the outflow port B33 and the rotation holding chamber B25.

Next, while explaining this automatic feeding mechanism for softening agent, etc., the outer bottom surface of the balancer 14 is irregularly shaped due to the structure of each chamber 1, and an inward recess is formed in the outer bottom surface of the balancer. state the reasons for this.

The flexible tithe 4-. When a liquid such as a cleaning agent is put in and attached to the balancer 14, the liquid falls into the stop holding chamber A20 and collects therein. This state is shown in FIG. 4. During washing, the liquid remains retained here.

When the water is drained and the washing and dewatering tank 2 begins to rotate for centrifugal dehydration, the balancer 14 and the input container 16 also rotate, which causes centrifugal force to act on the liquid basin, causing the liquid to rotate through the pipe 21. It moves to the time holding chamber A23 and is pressed against the partition wall A2s.

This state is shown in FIG. 4(B).

When the dehydration is completed, the liquid drops to the bottom of the rotating holding chamber A23 due to gravity. On the other hand, a drop of liquid falls to the bottom of the holding chamber A23 during rotation. On the other hand, the bottom of the rotation holding chamber A23 is
As shown in FIG. 6, the stop holding chamber B24 is the outlet A.
27 as a boundary, and is set to be an inclined surface with respect to the bottom of the holding chamber B24 at the time of stop, so that the liquid flows from the holding chamber A23 during rotation through the outlet A27 due to gravity and is held at the time of stopping. It flows out into chamber B24 and is retained. The storage capacity of the liquid in the holding chamber B24 during stoppage is determined by the step of the above-mentioned outlet A27.

By the way, the balancer 14 is generally formed by liquid-tightly joining the open ends of an annular groove body A35 and an annular groove body B36 made of a synthetic resin material by welding or the like, and sealing a liquid such as salt water inside. A part of the feeding device for softening agent, etc. of this embodiment includes the annular groove body A3ts and the annular groove body B.
36.

Therefore, the bottom surface of the holding chamber A23 during rotation, the bottom surface of the holding chamber B24 during stoppage, and the bottom surface of the water passage 26 are all formed into an annular groove body A35, and the wall thickness is limited due to the mold structure and resin molding. Since it cannot be made too thick, the step on the bottom surface becomes a step on the outer bottom surface of the annular groove body A35, and when stopped, the holding chamber B2
Since the outer bottom surface of the balancer 4 and the outer bottom surface of the water passage 26 are on the same plane, the outer bottom surface of the holding chamber 'A23 during rotation is formed by protruding the outer bottom surface of the balancer inward to form a recess 37. .

Next, while water is supplied again, the pulsator 1o rotates, and the rinsing process is performed, the liquid bath is held in the stop holding chamber B24! f, size. This state is shown in Figure 4 (C).
Shown below. When dehydration starts again, the liquid moves from the communication port B32 to the rotation holding chamber B25 due to the centrifugal force caused by the dehydration rotation and is pressed against the partition wall B29 (Fig. 4(D)).When dehydration is finished, the liquid moves by gravity. It falls to the bottom of rotating time keeping chamber B25.

Since the bottom of the rotating holding chamber B26 is inclined with respect to the outflow port B33, the liquid flows to the outflow port B33 by gravity, flows out from here to the outside of the balancer, and is thrown into the washing/dehydration tank 2. The liquid is added to the second rinse step in which the liquid should be added.

By the way, here as well, since the bottom surface of the holding chamber B25 during rotation is inclined with respect to the outlet B33,
If the position of 33 is the same as the outer bottom surface of the water passage 26 of the balancer 14, the outer bottom surface of the holding chamber B25 during rotation will protrude to the outside of the balancer than the outer bottom surface of the water passage 26 portion that occupies most of the balancer 14 due to the mold structure. to form a recess 38.

As described above, a complicated recess is formed on the outer bottom surface of the balancer.

FIG. 6 shows the balancer structure in this embodiment, in which the ribs 39 are formed on the four parts 37 formed by the outer bottom surface of the holding chamber A23 during rotation.

During the washing and rinsing process, when the pulsator 1o rotates, the item to be washed circulates in the washing/dehydration tank 2, so-called cloth circulation, the outer bottom surface of the balancer 14 comes into contact with the item to be washed, as shown in Figure 1. It is desirable that the outer bottom surface of the balancer be as smooth and flat as possible to prevent the cloth C from getting caught on the outer bottom surface of the balancer.

However, as mentioned above, it is necessary to provide a difference d' between the bottom of the rotation holding chamber A23 and the bottom of the stop holding chamber B24, so as shown in FIGS. A
Either make the outer bottom surface of the balancer 23 concave than the outer bottom surface of the balancer 14 to obtain height, and make the outer bottom surface of the holding chamber B24 flush with the outer bottom surface of the balancer when stopped, or conversely, as shown in FIG. There is a method of obtaining the above-mentioned step by making the outer bottom surface of the holding chamber A23 and the outer bottom surface of the balancer on the same plane, and making the outer bottom surface of the holding chamber B24 at the time of stop convex beyond the outer bottom surface of the balancer and outward of the lancer.

However, compared to the area of the entire outer bottom surface of the balancer, the area of the outer bottom surface of the holding chamber B24 at the time of stop is small, and the step is as large as approximately 301,111 in order to secure the volume of the holding chamber B24 at the time of stopping. The presence of such a protrusion has a very negative effect on the fabric of the item to be washed, and there is a high possibility that the item to be washed will get caught on the protrusion and be damaged.

If a step is obtained by forming a recess 37 as shown in Fig. 6,
If the laundry gets stuck in the recess 37, it will also have a negative effect on the fabric running performance and there is a high possibility that it will be damaged. 6th
By forming a rib 39 as shown in the figure and providing a sufficiently rounded end at the tip of the rib 39, it is possible to prevent the cloth from getting stuck in the recess 37. The number of ribs 39 may be increased as appropriate depending on the size of the recess 37. Further, the height of the rib 39 is preferably equal to the depth of the recess 38, thereby making the outer bottom surface of the balancer 14 substantially flat.

In the case of this embodiment, since the concave portion 37 on the outer bottom surface of the balancer 14 corresponding to the holding chamber A23 during rotation is the largest, a rib 39 is provided here to ensure that the cloth (C) in the washing and dehydrating tub 2 is This prevents it from getting stuck in the recess 37.

As described above, according to the present invention, when part or all of the automatic liquid dispensing mechanism is integrally formed in the balancer, the recess formed on the outer bottom surface of the balancer has an adverse effect on the fabric running performance, the degree of damage to the fabric, etc. It is possible to prevent this from happening.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a washing machine with dehydration and dehydration functions showing an embodiment of the present invention, Fig. 2 is a perspective view of the main parts of the balancer with the liquid agent input container removed, and Fig. 3 is the main parts of the same. The fourth diagram is a diagram showing the location of the liquid during water supply, washing, and drainage, and the same figure (B) is a diagram showing the location of the liquid during the first dehydration. The same figure (q shows the location of the liquid during water supply and rinsing, the same figure (0 shows the location of the liquid during the second dehydration, Figure 6 is O-0 in Figures 2 and 3) 6 is a cross-sectional view showing the structure shown in FIG. 6 without ribs, and FIG. 7 is a cross-sectional view showing an example of the structure shown in FIG. 6 in which the recess and the ribs are removed. ...Washing and dehydration tank, 14... Balancer, 15 ------- Container, 37 ------- Concave part,
39#, 11. ,rib. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 4 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 5

Claims (1)

[Claims] A balancer for vibration suppression in which the open ends of an annular groove body made of synthetic resin are liquid-tightly welded together and a liquid is sealed inside, and the balancer is provided at the upper open end so as to be rotatable inward of the water receiving tank. The balancer is equipped with a washing and dehydrating tank arranged therein,
A recess formed in a part of the outer bottom surface of the balancer to protrude inward and a partition wall provided inside the balancer,
An automatic liquid injection device for a dehydrating/washing machine, which forms a liquid injection mechanism such as a fabric softener, and the recess is provided with a rib having a height equivalent to the depth of the recess.