JPS6328640B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a finishing agent supply device for a dehydrator having a so-called dehydrating and rinsing function. To provide a finishing agent supply device for a dehydrator that can supply a finishing agent in a diluted state to a dehydrating basket at an appropriate time after the start of operation.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a two-tub washing machine will be specifically described below with reference to the drawings.

First, in FIG. 1, 1 is an outer box of a washing machine, and inside this outer box 1, a washing tub 2 and a dewatering tank 3 are arranged side by side.
A stirring blade 5 driven by a washing motor 4 is disposed at the inner bottom of the washing tub 2. Further, a dewatering basket 7 driven by a dehydrating motor 6 is disposed in the dehydrating receiving tank 3, and a water sprinkling tube 8 is erected in the center of the dehydrating basket 7. Of the inner lid 10 and outer lid 11 that open and close the entrance and exit for laundry to the dewatering basket 7, a water injector 12 for injecting water into the water spray cylinder 8 is attached to the lower surface of the inner lid 10. The water spray tube 8 is made of sintered resin, for example, and is integrally molded so that there are countless water-permeable micropores in the wall, but it is also possible to use a metal pipe with a large number of small holes. good. On the other hand, 13
is an operation box erected at the rear of the upper part of the outer box 1, and this operation box 13 includes a water supply solenoid valve 16 in addition to a washing timer 14, a dehydration timer 15, etc.
A substantially tapered guide body 18 is provided which can be switched in the left and right direction by a lever 17. By switching the guide body 18, water from a water outlet body 16a connected to the solenoid valve 16 can be washed. The washing tank 2 is selectively supplied to the washing side waterway 19 which is the water supply waterway to the tank 2 side or the dewatering side waterway 20 which is the water supply waterway to the dewatering basket 7 side.
Alternatively, water can be supplied to the water injector 12. In FIG. 2, reference numeral 21 denotes a container placed inside the operation box 13, which is rotatably supported by a pin 22 midway between its two ends. The inner volume of the right side, which is one of the left and right sides, is larger than that of the left side, which is the other side. Further, a partition plate 24 is integrally provided on the left end side of the container 21 so as to create a small gap 23 between the container 21 and the bottom, thereby forming a small chamber 25. In addition, partition plate 2
4 may be erected on the bottom of the container 21 to form a slight gap between the two inner surfaces of the container 21. Due to the difference in weight on both sides of the pin 22, the container 21 is always in a tilted state as shown by the solid line in FIG.
It faces into the storage recess 26 formed in. 27 is a small chamber 25 of the container 12 in which the outlet 27a is in a tilted state.
When the finishing agent is put into the receiver, which is a charging part and is located above the operation box 13, the finishing agent drips from the outlet 27a into the small chamber 25 of the container 21 which is in a tilted state. It's getting old. Reference numeral 28 denotes an intake channel led out from the water outlet body 16a from which a portion of the water from the water source is to be taken out, and this is made of a pipe. Hole 2
9 into the dewatering side waterway 20. Then, when the container 21 rotates in the direction of arrow A and becomes approximately horizontal, the outlet 28a of the intake channel 28 faces into the container 21. Reference numeral 30 denotes an opening formed in the middle of the intake channel 28, from the state in which the guide body 18 supplies water to the dewatering side channel 20 (see the solid line in Figure 2) to the state in which water is supplied to the washing side channel 19 (see the two-dot chain line in Figure 2). (see), the upper right side of the guide body 18 enters into the opening 30 and closes the intake channel 28. On the other hand, in FIG. 3, reference numeral 31 denotes a retention section, which has a retention recess 2 on the outside of one side wall 20a of the dewatering water channel 20.
6, and the inside of this retention section 31 is connected to the dewatering side waterway 20.
and two slits 3 formed in the side wall 20a.
2 and 33.

Here, the electrical circuit configuration on the dehydrator side will be explained with reference to FIG. 3. Numeral 34 is a lid switch that is closed when the outer lid 11 is closed, and 35 is a lid switch for the "dehydration rinsing" process or the "finishing" process, which will be described later. A dehydration selection switch 35 is used to select whether or not to proceed to the "dehydration" step after the completion of the dehydration process, and is operated by push buttons 36 and 37 provided on the operation box 13. Further, 38 is a buzzer for notifying the end of the above-mentioned "dewatering" process, and 39 is a water injection switch that is switched in conjunction with switching of the guide body 18 by the lever 17. On the other hand, the dehydration timer 15 is operated by a timer motor 40.
It is also equipped with a plurality of cam switches 41 to 45 that are opened and closed by a group of cams using the timer motor 40 as a driving source.
4, 35, and 39 are connected as shown in FIG. Each of the cam switches 41 to 45 of the dewatering timer 15 opens and closes as shown in FIG. 5, and the hatched portion indicates the period during which they are closed. That is, the dehydration timer 15 has two operating bands, which are represented by one rotation of the knob 46 as shown in FIG. and an operating band indicated by the angular range of B.
The operating zone consists of the conventional "dehydrating and rinsing" step and the immediately following "dehydrating" step, and the C operating zone consists of the newly created "finishing" step and the immediately following "dehydrating" step. Then, the cam switch 45 alternately repeats closing for 3 seconds and opening for 6 seconds during the entire period of both operating bands B and C. Also, the cam switch 44 is set to "dehydration rinse" for 9 minutes.
During the process, a state in which joint pieces c and b are closed for 1 minute and a disconnected state in which joint piece c is not connected to either piece a or b for 1 minute are repeated alternately, and the time is set for 4 minutes. In the "finishing" process, the first half of the 3-minute joint c-a is closed, and the second half is 1-minute joint c-b. '' During the process, the closed state between the intermediate pieces c and b is maintained.

By the way, when the water injection changeover switch 39 is set to close the contacts c and b, the water supply solenoid valve 16 can be manually controlled to be energized or disconnected when water is supplied to the washing tub 2.

Next, the operation of the above configuration will be explained. To dehydrate and rinse the laundry that has been washed with detergent in the washing tub 2, the laundry is transferred to the space around the water spray tube 8 in the dehydration basket 7, and the inner lid 10 and outer lid 11 are closed (the lid switch is turned on). 34 closed), then the guide body 18 is switched to the water supply side of the water injector 12 by the lever 17 (the contacts c and a of the water injection changeover switch 39 are closed), and the dewatering selection switch 35 is closed between the contacts c and a. and then operate the knob 46 of the dehydration timer 15 to set it to the starting point of the "dehydration rinse" process. As a result, each of the cam switches 41 to 45 enters the open/close state as shown in FIG. 5, so that the timer motor 40 is energized and starts a timed operation, and the water supply solenoid valve 16 and the dewatering motor 6 are energized. Then, the dewatering basket 7 is driven and its rotational speed is increased, and water from the water supply solenoid valve 16 is supplied to the water injector 1.
2 and injected into the water spray cylinder 8 from its outlet 12a. The water injected into the water spray tube 8 is vigorously jetted out toward the surrounding laundry 47 from the water-permeable micropores in the peripheral wall due to its water head and rotating centrifugal force, and then passes through the laundry 47 due to the centrifugal dewatering action. It is discharged into the dehydration tank 3 together with the detergent.
Therefore, water is poured into the water spray tube 8 using the cam switch 4.
1 is maintained in the closed state during the "dehydration rinsing" process and the water supply solenoid valve 16 is continuously energized, while the dehydration basket 7 is alternately energized at one-minute intervals by the dehydration motor 6 cam switch 44. Because the power is cut off, the drive rotation and inertia rotation will be repeated every minute, and the rotation speed will increase to about 1300r.pm during each drive rotation and about 200r.pm during each inertia rotation. (The rotation mode of this dehydration basket 7 is shown in FIG. 7). In this way, the rotation speed of the dehydration basket 7 repeatedly increases and decreases during the dehydration and rinsing operation, so in the low rotation speed range, the speed of water passing through the laundry 47 becomes low, and the water permeates into the laundry 47 evenly. However, in the high-speed rotation range, the speed of water passing through the laundry 47 increases, and the water that has penetrated into the laundry 47 is actively shaken off. Efforts are made to improve dehydration and rinsing efficiency. During such dewatering and rinsing operation, a portion of the water from the water source is taken into the intake channel 28 and flows out from the outlet end 28a, but since the container 21 is in a tilted state at this time, the water from the water source 28 is
The water flowing out from a is injected into the dewatering water channel 20, so there is no risk of flooding the inside of the operation box 13. Now, when the "dehydration and rinsing" process is completed and the process moves to the "dehydration" process, the cam switch 4
1 opens to cut off the power to the water supply solenoid valve 16.
At the same time as the water injection into the water spray barrel 8 is stopped, the cam switch 44 continues to close the final contact piece c-b in the "dehydration rinsing" process, so the dehydration motor 6 is continuously energized, and as a result, the dehydration basket 7 is continuously energized. The laundry 4 is continuously driven and rotates at a higher speed than the maximum rotation during the "dehydrating and rinsing" process (see Figure 7).
Dehydration is performed to remove water by shaking it off from step 7. Then, at the end of the "dehydration" process, the cam switch 4
2 closes and sounds the buzzer 38, and then,
All the cam switches 41 to 45 are turned off, and the dewatering operation ends.

The laundry 47 that has been dehydrated and rinsed as described above is finished with a fluorescent agent, a softening agent, etc. as follows. That is, a predetermined amount of finishing agent is injected into the receiver 27 of the operation box 13, and the knob 46 of the dehydration timer 15 is operated to set the start point of the "finishing" process. As a result, cam switches 41 and 45 close, and cam switch 4
4 closes the contact piece c-a. At this time, the lid switch 34 is in the closed state, and the dehydration changeover switch 35 and the water injection changeover switch 39 are also in the state of closing the contact pieces c and a, as in the case of dehydration and rinsing, so the timer motor 40 is in the closed state. The water supply solenoid valve 16 and the dewatering motor 6 are energized to start a timed operation.

Incidentally, since the finishing agent poured into the receiver 27 drips into the small chamber 25 of the container 21 at the same time as it is poured, the container 21 rotates in the direction of arrow A due to the weight of the finishing agent. As a result, the intake channel 28
The outlet 28a is located above the container 21 storing the finishing agent. At this time, since the gap 23 is extremely narrow, the relatively highly viscous finishing agent hardly flows out from the small chamber 25 through the gap 23, and even if it does, the amount is small. and,
When the water supply electromagnetic valve 16 is energized, water from the water source is supplied to the dewatering basket waterway 20, and a part of it is taken into the intake waterway 28, and its momentum jumps over the opening 30 and flows from the outlet end. It is injected into the container 21 which is in a substantially horizontal state, and mixes with the previously injected finishing agent to form a finishing agent solution. In this way,
When a predetermined amount of water is supplied into the container 21, the container 21 is tilted in the opposite direction of arrow A due to the difference in storage amount on both the left and right sides of the pin 22, and the finishing agent solution inside is poured out into the storage recess 26. The finishing agent solution supplied into the storage recess 26 flows out little by little into the storage part 31 from the small diameter outlet 26a. From now on, intake channel 2
The water flowing out from the outlet end 28a of 8 is injected into the dewatering water channel 20 in the same manner as described above. Also, a part of the water flowing through the dewatering water channel 20 in the direction of arrow D in FIG. Mix with the finishing solution dripped into the
The water gradually flows out from the slit 33 on the downstream side into the dewatering water channel 20 and dissolves in the water flowing in the water channel 20. Therefore, the water flowing in the dewatering water channel 20 finally becomes water containing the finishing agent and is sent to the water injector 12.
The water is injected into the water spray cylinder 8 from the water source. On the other hand, since the dewatering motor 6 is turned on and off by the cam switch 45, which repeats opening and closing, the dewatering basket 7 is rotated intermittently by the dewatering motor 6 for 3 seconds and inertly rotated for 6 seconds. Due to this intermittent drive, the rotational speed of the dewatering basket 7 gradually increases, but the increase is gradual and the speed is not that high.
The average rotational speed (about 200r.pm) is lower than the average rotational speed (about 800r.pm) in the "dehydration and rinsing" step (see FIG. 7). The water containing the finishing agent injected into the water spray barrel 8 is ejected toward the laundry 47 due to the water head and rotational centrifugal force, passes through the laundry 47, and finally enters the dewatering tank 3. is released. At this time, as mentioned above, since the dehydration basket 7 is rotating at a lower speed than during dehydration and rinsing, the water containing the finishing agent does not pass through the laundry 47 all at once.
The laundry 47 is penetrated evenly into the laundry 47.
An ideal condition for the adhesion of the finishing agent, such as collision with the fabric of the laundry 47, can be obtained, and it becomes possible to effectively adhere the finishing agent to the laundry 47.
When such an intermittent drive operation of the dehydration basket 7 is performed for 3 minutes, the cam switch 44 switches from closing the contact pieces ca to closing the contact pieces c and b, so that the dehydration motor 6 performs the "finishing" operation. Electricity is continuously applied for the remaining one minute of the process, and as a result, the rotational speed of the dehydration basket 7 increases significantly (see FIG. 7). The reason why the dewatering basket 7 is continuously driven in the second half of the "finishing" process is that in the previous intermittent drive, the force of water passing through the laundry 47 was weak, and the amount of finishing agent adhering to the laundry near the top end was reduced. Since the rotational speed tends to be smaller than that below, the purpose is to compensate for this by increasing the rotational speed. Now, when the "finishing" process is completed and the transition to the "dewatering" process begins, the cam switch 41 opens and the water supply solenoid valve 16 is cut off, so water injection into the water spray tube 8 is stopped and the cam switch 4
In order to maintain the closure between contact pieces c and b in the latter half of the "finishing" process, the dewatering motor 6 is continuously energized, and as a result, the dewatering basket 7 continues to increase its rotational speed and enters a high-speed rotation state. The laundry 47 is dehydrated. Of course, in this case, the finishing agent once attached to the laundry 47 in the previous "finishing" step does not come off due to the dehydration action, and only the moisture is mainly shaken off.

By the way, when performing each of the dehydration rinsing or finishing operations as described above, if the dehydration selector switch 35 is set to close contact between c and b, each process of ``dehydration rinsing'' or ``finishing'' can be performed. Since the operation is stopped when the water is completely shaken off, this is convenient for fabrics that wrinkle or shrink when the water is completely shaken off.

The time it takes for the finishing agent solution stored in the storage recess 26 to drain out tends to vary depending on the viscosity of the finishing agent, etc. The supply of drug solution may stop. However, since the amount of water per unit time that enters the retention part 31 through the slit 32 is relatively small and its flow velocity is considerably slower than that of the main stream in the dewatering side waterway 20, the retention area containing a high concentration of finishing agent is The water in the section 31 then flows out into the dewatering side water channel 20 one after another, but stays in the retention section 31 for a relatively long time, supplying finishing agent into the dewatering side water channel 20 until the end of the "finishing" process. continue. Therefore, since the duration of the finisher solution flowing out from the storage recess 26 may be short, there is no need to make the diameter of the outlet 26a that small.
The problem of clogging can be solved, and since there is no problem even if the duration of outflow from the storage recess 26 varies somewhat due to the difference in the viscosity of the finishing agent, it is possible to handle various finishing agents with different viscosities. Moreover, since the finishing agent stock solution is first diluted in the container 21 and then poured into the storage recess 26, differences in viscosity in the finishing agent stock solution are not a practical problem, and the dewatering side waterway 2
It can be supplied within 0.

In this way, according to this embodiment, the finishing agent can be diluted by first mixing it with water in the container 21, so unlike the case where the finishing agent is directly poured into the dehydration side waterway 20, the concentrated finishing agent can be mixed with water in the container 21 and diluted. It can effectively eliminate the inconvenience caused by adhesion to surfaces and causing discoloration. Moreover, the supply of the finishing agent solution into the dehydration side waterway 20 is delayed by the time required for a predetermined amount of water to be supplied into the container 21 from the time when the water supply solenoid valve 16 is energized. After it is filled with water, finishing agent is supplied into the water spray barrel 8. Therefore, the finishing agent can be supplied to the entire laundry from the beginning, and the applied finishing agent can be effectively used to uniformly adhere to the entire laundry. This means that container 21
When the water supply solenoid valve 16 is energized and the water is supplied to the container 21 first, the water supply solenoid valve 16 is energized and the water is supplied to the container 21. After this, the finishing agent is added to container 2.
The same applies to the case where the finishing agent is injected into the container 1. Therefore, either setting the dehydration timer 15 or adding the finishing agent to the receiver 27 can be done first, making it easier to handle.

Furthermore, if the container 21 is always maintained in a tilted state due to the difference in weight between the left and right sides, almost all of the finishing agent solution remaining on the container 21 will eventually flow down into the storage recess 26. This will eliminate the need for cleaning.

Furthermore, when the container 21 is tilted, if the outlet end 28a of the intake channel 28 is made to face into the dewatering side channel 20, the water taken into the intake channel 28 will flow into the container 2.
It is possible to prevent the inconvenience of water being supplied into the storage recess 26 through the water tank 1 and eventually overflowing from the storage recess 26, flooding the inside of the operation box 13. In addition, if the guide body 18 is configured to enter the opening 30 of the intake channel 28 and block the intake channel 28 when the guide body 18 is switched to the water supply to the washing side water channel 19, the water will not flow into the washing tub 2. It is possible to prevent the inconvenience that part of the water from the water source is supplied to the dewatering water channel 20 when water is supplied.

As is clear from the above description, when carrying out a finishing treatment in which a finishing agent is applied to laundry after dehydration and rinsing, the present invention supplies the finishing agent in a diluted state to the dehydrating basket at an appropriate time after the start of operation. It has the excellent effect of being able to

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of a two-tub washing machine, FIG. 2 is an enlarged longitudinal sectional view of the main parts, and FIG. 3 is a plan view of the dewatering side waterway. Fourth
The figure is an electric circuit diagram, Figure 5 is a time chart diagram, Figure 6 is an enlarged view of the knob of the dehydration timer 15,
FIG. 7 is a rotation mode diagram of the dehydration basket. In the figure, 2 is laundry, 7 is a dehydration basket, 8 is a water bottle,
12 is a water injector, 15 is a dewatering timer, 16 is a solenoid valve for water supply, 18 is a guide body, 19 is a washing side waterway (washing tank side waterway), 20 is a dewatering side waterway (dewatering basket side waterway), 21 is a container, 26 is a storage recess, 27 is a receiver (input part), 28 is an intake channel, 30 is an opening,
31 is a retention section.

Claims (1)

[Claims] 1. A dewatering machine in which water from a water source is guided through a water supply channel, injected into the laundry in a dehydration basket, and the dehydration basket is rotated to rinse the laundry by centrifugal dehydration, which can be rotated above the water supply channel. a container provided in the container, an input section provided with an outlet located above the container and for charging the finishing agent into the container, and an outlet provided so as to be located above the container storing the finishing agent. an intake channel for supplying a portion of water from a water source into the container, and the container is configured such that the inner volume on one side of the center of rotation is larger than that on the other side. In addition, when the finishing agent has been completely inputted from the input section, the container maintains a state in which only the finishing agent is stored, and when water is supplied from the intake channel, the resulting circulation occurs. A finishing agent supply device for a dehydrator, characterized in that the finishing agent supplying device for a dehydrator is configured to rotate due to the difference in the amount of water stored on both sides of a moving center part, thereby causing an internal finishing agent solution to flow out.