JPS63117798A - Washing machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a washing machine.

2. Description of the Related Art A single-tank centrifugal dewatering laundry rack having a configuration as shown in FIG. 4 has been known. The structure will be explained based on FIG. 4. Reference numeral 1 denotes an outer tank for receiving washing water, and inside this outer tank 1, a washing/drying tank 2 is provided. A pulsator 3 is provided at the bottom of this washing/dehydration tank 2, and a large number of small holes 4 for draining water are provided on the side wall. Reference numeral 5 denotes a mechanical case, which has a mechanism for transmitting the driving force of the motor 6 so that only the pulsator 3 is rotated during washing, and the washing/dehydration tank 2 and the pulsator 3 are simultaneously rotated during spin-drying. The motor 6 transmits driving force to the mechanical case 5 through a belt 7 and a pulley 8. Reference numeral 9 indicates a drain valve provided in the middle of a drain channel 10 communicating with the lower end of the outer tank 1, and 11 indicates a brake arm. These drain valve 9ti and brake arm 11 are operated by a solenoid 12. 13 is a support plate, outer tank 1, motor 6
, a mechanical case 5, and the like are suspended from an exterior body 15 by a rod 14. 16 is washing and dehydration tank 2
The balancer provided at the top of the 17 is the clothes input port 18
An operation box 19 provided at the rear of the upper exterior body 17 is provided with electrical components (not shown) for controlling a series of processes of the washing machine. A slot 20 is provided in the clothes slot 18 so as to be openable and closable.

In the washing machine having the above configuration, a case where detergent is added and the detergent is dissolved will be explained. In general, water is poured into the washing/drying tub 2 before the laundry is put in it, and then detergent is added and dissolved by stirring with the pulsator 3, or the washing/drying tub 2 is filled with water. After washing, detergent may be added and dissolved while washing. Also, recently, washing machines with a reservation timer have come into use.

If you set the washing machine at night and automatically start it in the morning, or if you put detergent on top of the laundry and leave it for a long time, the detergent may damage or discolor the fabric. There is a need to prepare detergent somewhere in the washing machine, separate from the laundry. Conventionally, a single batch of detergent is prepared on the water supply path, and the detergent is poured into the water at the start of water supply, or the detergent is poured into a part of the upper filter of the circulation lint path, and the detergent is circulated at the start of washing. It was dissolved with a stream of water.

Problems to be Solved by the Invention As mentioned above, in a washing machine equipped with a reservation timer, detergent is prepared in such a way that the detergent does not come into contact with the laundry until the washing starts, but in this case various problems occur. are doing. First, when detergent is prepared on the water supply path, there is a problem that if the water supply water pressure, that is, the tap water pressure is weak, all the prepared detergent will not flow down. Second, when a part of the upper filter in the circulating lint path is prepared with detergent, there is a problem that the detergent is not completely dissolved by the circulating water flow and remains on the filter mesh.

The present invention is intended to solve these problems, and aims to use a circulating lint path to separate detergent from laundry items and dissolve the detergent so that it does not remain in the lint filter. It is something to do.

Means for Solving the Problem In order to solve this problem, the present invention provides a detergent inlet in the middle of the circulation lint path provided on the inner surface of the washing tub, and also provides a lid on the detergent inlet so that it can be opened and closed. A means is provided for driving a pulsator at the bottom of the washing tub so as to generate a water flow that dissolves the detergent introduced into the circulating lint channel at the beginning of the washing process.

Operation This arrangement allows the detergent to be dissolved at the beginning of the washing process by means of the water flow up and down in the circulating lint path generated by the pulsator.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3. - In Fig. 1, which shows an enlarged view of the circulating lint path of a tub-type centrifugal dehydrating washing machine, 21 is a circulating lint path formed vertically along the inner surface of a part of the washing/dehydrating tank 22; A lint filter 23 is detachably provided at the upper end of the lint path 21. Further, a detergent inlet 24 is formed in the circulating lint path 21 slightly below the lint filter 23, and a detergent inlet 24 is formed in the washing and dehydrating tank 22.
The lid 25 can be opened and closed from the inside of the roof 2.
5 is opened to allow detergent to be introduced into the circulating lint path 21 from the detergent inlet 24. In addition, the washing W11'li! There is a pulsator 26 at the bottom of the water pump 1a22.
A balancer 27 is provided above the washing/dehydration tank 22. 28 is an outer tank.

In the above configuration, when washing is performed using the reservation timer, if detergent is poured into the circulating lint path 21 by checking T124 in advance, the detergent 28 falls to the bottom of the circulating lint path 21 as shown in FIG. It becomes a state. Therefore, as shown in FIG. 2, the reversal cycle of the pulsator 26 is shortened at the beginning of each washing process, such as 12-minute washing, 6-minute washing, 3-minute washing, etc. (For example, during normal washing, it is turned on for 3 seconds, then 1 second. The period of OFF is 0.3 seconds, then 0.3 seconds.
5 seconds), the water flowing through the circulation lint path 21 reaches a height A slightly below the lint filter 23 and falls down, as shown in FIG. That is, a choppy water flow that moves up and down inside the circulating lint path 21 is created. At this time, the reversal period of the pulsator 26 is set so that the water level becomes A according to conditions such as the size of the pulsator 26, the number of blades, the rotation speed, and the volume of the circulating lint path 21. In short, at the beginning of the washing process, the water level should not be raised to the lint filter 23 in order to dissolve the detergent 29. Alternatively, the pump pressure itself can be lowered by rotating the pulsator at low speed (80 rpm compared to the usual 150 to 180 rpm) using motor control that cuts the energizing frequency and energizes the motor intermittently. It is also possible to dissolve the detergent 29 below the water level. As a result, the detergent 29 is dissolved by the water flow inside the circulating lint path 21, and then sent into the washing/dehydration tank 22 in a normal washing process.

In addition, for a washing machine with a reservation timer, the program system is created as shown in Figure 3, and when a reservation start is made, the process is inserted at the beginning of the washing process without dissolving the detergent with the water flow as described above. It is also possible to program the machine so that if no reservation is made, a normal wash)N is performed.

Effects of the Invention As described above, according to the present invention, problems such as damage and discoloration of cloth caused by detergent that occur when laundry items and detergent come into contact with each other for a long period of time can be resolved by separating the detergent from the laundry items and using circulating lint. This can be solved by putting the detergent in the circulating lint route, and the detergent in the circulating lint route can be quickly dissolved by the water flow in the circulating lint route, which is generated at the beginning of the washing process, and the tap water pressure is weak compared to conventional methods. At the same time, it can solve the problem of not all the detergent on the water supply path flowing down, and the problem of detergent remaining in the mesh of the lint filter.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention.
The figure is an enlarged sectional view of the circulation lint path of the one-tank two centrifugal dehydration wash If1m, Figure 2 is an explanatory diagram showing the positioning of the detergent dissolving process in the washing process, and Figure 3 is a program flow chart of a washing machine with a reservation timer. The figure shown in FIG. 4 is a longitudinal sectional view of a conventionally known one-tank centrifugal dewatering washing W1 machine. 21... Circulating lint path, 22... Washing and dehydration tank,
23...lint filter, 24...detergent inlet,
25...Lid, 26...Pulsator, 29...Detergent. Agent Hiroshi Moriki Tsuru Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. A detergent inlet is provided in the middle of the circulating lint path provided on the inner surface of the washing tub, and a lid is provided on this detergent inlet so that it can be opened and closed, and the detergent introduced into the circulating lint path is used for washing. A washing machine provided with means for driving a pulsator at the bottom of the washing tub so as to generate a water flow that dissolves the lint in the circulating lint path at the beginning of the process. 2. The washing machine according to claim 1, wherein a pulsator generates a short-interval water flow at the beginning of the washing process, and the detergent is dissolved by this water flow. 3. At the beginning of the washing process, a pulsator is rotated at a low speed by motor control that intermittently energizes the motor, and the detergent is dissolved by the water flow created by the rotation of the pulsator. The washing machine according to paragraph 1. 4. The pulsator driving means operates at the reserved start time of washing to drive the pulsator and dissolve the detergent at the beginning of the washing process. washing machine.