JPH10286389A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable washing operation without suppressing the strength of modes and to enable the shortening of time required for washing and the reduction of water consumption. SOLUTION: This washing machine is provided with a lid to open and to close an opening part on the upper surface of a washing drum. Here, a reed switch 16 (a detecting means of the opening and closing of the lid) is provided for enabling wash operation in the washing drum in a strong mode to be executed on condition that the lead switch 16 detects the closing of the lid. As a result of this, wash operation in the washing drum in a strong mode is executed only in the state that the opening part on the upper surface of the wash drum is closed by the lid, and even when intense splashes of water occur in the washing drum, they are prevented by the lid from reaching the outside of the washing drum. Therefore, it is possible to execute desirable washing operation in the washing drum in a strong mode with no fear of splashes of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine capable of performing a washing operation in a washing tub in a strong mode.

[0002]

2. Description of the Related Art Conventionally, in a washing machine, when a washing operation is performed in a washing tub, a water flow hits the inner surface of the washing tub or the laundry, the water flows collide with each other by inversion, and furthermore, a washing operation is performed. An object may be hit against the surface of the water, causing a water splash. The water splash is proportional to the intensity of the mode of the washing operation, and the greater the intensity, the more severely the water splash occurs, and the water splashes out of the washing tub and wets the floor surface. For this reason, in general, the intensity of the washing operation mode is suppressed so that the water splash does not become so violent as to go out of the washing tub, and the washing operation is executed in the mode of the suppressed intensity.

[0003]

However, in order to suppress the water splash as described above, a conventional washing machine that performs the washing operation in the mode in which the strength is suppressed is long in obtaining the required washing performance. There was a problem that washing time was required. In the rinsing operation during the washing operation,
Not only does it take a long time to sufficiently supply the detergent contained in the laundry, but also there is a problem that a large amount of rinsing water is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the time required for washing and the amount of water used by a washing operation without suppressing the mode intensity. To provide a washing machine that can

[0005]

In order to achieve the above object, a washing machine according to the present invention comprises a lid for opening and closing an opening on an upper surface of a washing tub. A detecting means is provided, and the washing operation in the strong mode in the washing tub is executed on condition that the lid opening / closing detecting means detects the closure of the lid.

According to this, the washing operation in the strong mode in the washing tub is performed only when the opening on the upper surface of the washing tub is closed by the lid. In the situation where the upper opening of the washing tub is closed with a lid, even if severe water splashes occur in the washing tub, it is prevented from reaching the outside of the washing tub by the lid. The washing operation in the strong mode can be performed without worrying about water splashing. Then
According to the washing operation in the strong mode, the required washing performance can be obtained in a short time, and the detergent contained in the laundry can be sufficiently discharged with a short amount of water and a short rinsing time.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, in the overall configuration of the washing machine shown in FIG. 2, the main body 1 includes a base plate 2, an outer box 3 mounted and connected thereto, and an operation panel 4 mounted and connected to a rear edge of the upper surface of the outer box 3. ing. In the outer box 3, a washing tub 5 and a dewatering tub 6 are integrally provided, a stirring body 7 is further disposed in the washing tub 5, and a dewatering basket (see FIG. (Not shown).

On the other hand, a washing operation motor (not shown in FIG. 2) for rotating and driving the stirring body 7 and a dehydration operation motor (not shown in FIG. 2) for rotating the dewatering basket are provided on the base plate 2. This is also not shown in FIG. 2). Further, the operation panel 4 is provided with a washing timer 8, a water flow changeover switch 9, and a dehydration timer 10.

A washing lid 11 is provided on the washing tub 5, and the washing lid 11 opens and closes an opening on the upper surface of the washing tub 5 by attachment and detachment. A dehydration lid 12 is provided on the dehydration tub 6. The dehydration lid 12 has a rear edge pivotally supported in the operation panel 4 so as to be vertically rotatable. The opening of the opening is opened and closed.

At a substantially central portion of the upper wall of the washing lid 11 facing the inside of the washing tub 5, a see-through portion 13 is provided by, for example, a transparent plate. A magnet 14 is provided on the left side of the rear part of the washing lid 11 as shown in FIG. The magnet 14 is, for example, a permanent magnet. More specifically, the magnet 14 is fitted into a recess 15 formed in the lower portion of the rear side wall portion 11a of the washing lid 11 and fixed by, for example, bonding. 11b is sufficiently spaced as indicated by dimension C.

On the other hand, a reed switch 16 is provided inside the operation panel 4 on the main body 1 side. More specifically, the reed switch 16 is also provided with a claw 18
a, the washing lid 11
When the washing machine 11 is closed (mounted), it is closed in response to the proximity of the magnet 14, and when the washing lid 11 is opened (removed) from this state, it is opened in response to the magnet 14 being separated. Has become. Therefore, the magnet 14 and the reed switch 16 function as lid opening / closing detecting means for detecting the opening / closing of the washing lid 11. The mounting plate 1
7 is originally the washing timer 8 and the water flow switch 9
And functions as an attachment member for attaching the dehydration timer 10 and the like.

On the other hand, as shown in FIG. 4, an inclined surface 19 having a gradually decreasing outward shape is formed at the left edge of the upper surface 11b of the washing lid 11. This slope 1
The left edge in the figure of the upper surface 11b of the washing lid 11 in which 9 is formed is a portion corresponding to the magnet 14 and also an edge located on the outer peripheral portion of the main body 1.

Further, as shown in FIG. 4 and FIG.
A continuous rib 20 is formed on the left side edge and the front side edge of the inner portion 1 together with a plurality of support ribs 20a. The left edge and the front edge of the inner portion of the washing lid 11 on which the ribs 20 are formed are edges located on the outer peripheral portion of the main body 1. In addition, a step 21 is formed on the left edge and the front edge of the peripheral edge of the opening on the upper surface of the washing tub 5 with respect to the rib 20, and the rib 20 is in the closed state of the washing lid 11. The tip portion is almost in contact with the step portion 21 and overlaps the inside of the washing tub 5 at a position above the step portion 21.

As shown in FIGS. 3 and 4, the washing tub 5 has a flange portion 22 having a substantially U-shaped cross section formed on the periphery of the opening on the upper surface thereof and being connected to the upper edge of the outer box 3. The dehydration tank 6 is also fixed with the same structure.

In contrast, FIG. 1 shows an electric circuit configuration. As is apparent from FIG. 1, the washing timer 8 includes first, second, third, fourth, and fifth washing timers. Timer switches 23, 24, 25, 26 and 27, between the movable contact piece a and the fixed contact piece b of the first and second timer switches 23 and 24, and the third to fifth timers; Between each movable contact piece a and one fixed contact piece b of the switches 25 to 27 and between each movable contact piece a and the other fixed contact piece c,
It is opened and closed by a cam rotated by a spring (not shown).

The mainspring of the washing timer 8 is tightened by the setting operation (rotation) of the washing operation time by the operation knob 28 shown in detail in FIG. The cam is rotated at a predetermined speed via a deceleration mechanism, so that the third timer switch 25, as shown in FIG.
A pattern of alternately closing between, for example, 2.2 seconds between “b” and between the contact pieces “a” and “c”, and then opening for 0.6 second, is repeated.

The fourth timer switch 24 alternately switches between the contact pieces a and b and between the contact pieces a and c, for example, at 1.
After closing for 8 seconds, a pattern of opening for 1.0 second is repeated.
Reference numeral 5 indicates a pattern in which the contact pieces a and b and the contact pieces a and c are alternately closed, for example, for 0.8 seconds, and then opened for 2.0 seconds.

FIG. 1 also shows a water flow switch 9.
And a dehydration timer 10, of which the water flow changeover switch 9 has first to third fixed contacts b, c, d with respect to the movable contact a, and between the contacts a and b, Piece a
-C and between the contact pieces ad are closed by a selection operation (rotation) by the operation knob 29 shown in detail in FIG.

The dewatering timer 10 has a timer switch 30. The movable switch a and the fixed contact b of the timer switch 30 are opened and closed by a cam rotated by a spring (not shown). ing.
The spring of the dehydration timer 10 is also wound by the set operation (rotation) of the dehydration operation time by the operation knob 31 shown in detail in FIG. 6, and the cam is decelerated by the restoring force from the wound state. It rotates at a predetermined speed via a mechanism.

Further, FIG. 1 shows an insertion plug 32 which is inserted and connected to a power outlet (not shown). Between the insertion terminals 32a and 32b of the insertion plug 32, the opening and closing of the dehydrating lid 12 is performed. The motor 34 for the dehydration operation is connected via a lid switch 33 provided to be opened and closed in response to the operation and a timer switch 30 of the dehydration timer 10.

The two plug terminals 32 of the plug 32
A buzzer 35, which is a notification means, is connected between a and 32b via a first timer switch 23 and a second timer switch 24 of the washing timer 8. The buzzer 35 is provided inside the operation panel 4 together with the lid switch 33, and the operation panel 4 is provided with a dial 36 for adjusting the volume of the buzzer 35 as shown in FIG. In addition, the operation panel 4 is provided with a drain switching lever 37 for opening and closing a drain valve (not shown) of the washing tub 5.

On the other hand, the first timer switch 23 and the second timer switch 24 of the washing timer 8 have a fixed contact piece b in common. It is connected to piece a.

Thus, the water flow switch 9 connects the fixed contact b to the movable contact a of the third timer switch 25 of the washing timer 8 via the reed switch 16, and connects the fixed contact c to the same. The movable contact piece a of the fourth timer switch 26 of the washing timer 8 is connected, and the fixed contact piece d is connected to the movable contact piece a of the fifth timer switch 27 of the washing timer 8.
Connected to

The third to fifth timer switches 25 to 27 of the washing timer 8 connect the fixed contact b to the forward rotation terminal 38a of the washing operation motor 38, respectively. c is connected to the reverse rotation terminal 38b of the motor 38, and the washing operation motor 38 has a common terminal 38c for forward rotation and reverse rotation connected to the insertion terminal 32b of the insertion plug 32. Connected. As a result, the reed switch 16 is connected in series with the motor 38 for the washing operation.

Next, the operation of the above configuration will be described.
Now, when performing the washing, the washing lid 11 is opened and the washing tub 5 is opened.
After a laundry (not shown) is put in the inside, a required amount of water is supplied, and a detergent is charged, the laundry lid 11 is closed. As shown in FIG. 3, when the magnet 14 approaches the reed switch 16, the reed switch 16 is closed, that is, the reed switch 16 detects that the washing lid 11 is closed.

In this state, next, the operation knob 29 of the water flow changeover switch 9 is turned to the "strong" position in the surrounding selection index shown in FIG. 6, and the operation knob 28 of the washing timer 8 is also turned. The rotation setting is performed at a desired time position in the surrounding selection index. Then, the water flow switch 9 is set to the contact a-
In the washing timer 8, the first timer switch 23 is first closed, and the third to fifth timer switches 25 to 27 are turned on in accordance with the above-described settings (see FIG. 7). a-b and between the contact pieces a-c are alternately opened and closed.

Therefore, in this case, the first
From the timer switch 23, between the contact pieces a and b of the water flow changeover switch 9, the reed switch 16, and the washing timer 8
The motor 38 for washing operation is energized through the contact pieces a and b or the contact pieces a and c of the third timer switch 25.

Here, as described above, the third timer switch 25 of the washing timer 8 alternately closes between the contact pieces a and b and between the contact pieces a and c for, for example, 2.2 seconds. It repeats the pattern of opening for 0.6 seconds,
In the combined time of opening and closing, the ratio of the closing time is much larger than the ratio of the opening time. As a result, the washing operation motor 38 is energized each time for a time sufficiently longer than the power-off time, and the rotation speed is increased to increase the rotation speed of the agitator 7 and the washing tub 5 is fast (strong). The washing operation is performed in a "strong" mode, that is, a flow of water is generated.

When the third timer switch 25 of the washing timer 8 closes between the contact pieces a and b, the motor 38 for washing operation is energized through the forward rotation terminal 38a so that the motor 38 is operated in the forward direction. When rotated and the contact pieces a and c are closed, the power is supplied through the reverse rotation terminal 38b to rotate in the reverse direction.

On the other hand, when the operation knob 29 of the water flow changeover switch 9 is turned to the "medium" position in the surrounding selection index shown in FIG. 6, the water flow changeover switch 9 is moved between the contact pieces ac. Therefore, in this case, when the operation knob 28 of the washing timer 8 is turned to the desired time position, the first timer switch 23 of the washing timer 8 is switched to the water flow changeover switch 9. A-
The fourth timer switch 2 of the washing timer 8 during interval c
The motor 38 for washing operation is energized through the contact pieces a and b or the contact pieces a and c of No. 6.

Here, as described above, the fourth timer switch 26 of the washing timer 8 alternately closes between the contact pieces a and b and between the contact pieces a and c for, for example, 1.8 seconds. It repeats the pattern of opening for 1.0 second,
In the combined time of opening and closing, the ratio of the closing time is slightly larger than the ratio of the opening time. As a result, the motor 38 for the washing operation is energized each time for a time that is slightly longer than the power cutoff time, and the increase in the number of rotations is suppressed more than in the above-described “strong” mode operation, so that the number of rotations of the stirring body 7 is increased. Is also suppressed, and a slower (weaker) water flow is generated in the washing tub 5 than in the above-described “strong” mode operation. That is, in this case, the washing operation is performed in the “medium” mode.

Further, the water flow switch 9
Operation knob 29 of the surrounding selection index shown in FIG.
In the state in which the water flow changeover switch 9 is
Closes between the contact pieces a and d. Therefore, in this case, when the operation knob 28 of the washing timer 8 is turned to a desired time position, the first of the washing timer 8 is turned off.
From the timer switch 23 through the contact pieces a and d of the water flow changeover switch 9 and the contact pieces a and b or the contact pieces a and c of the fifth timer switch 27 of the washing timer 8 for washing operation. Are energized.

Here, as described above, the fifth timer switch 27 of the washing timer 8 alternately closes between the contact pieces a and b and between the contact pieces a and c for, for example, 0.8 seconds. It repeats the pattern of opening for 2.0 seconds,
In the combined opening and closing time, the ratio of the closing time is sufficiently smaller than the ratio of the opening time. As a result, the motor 38 for washing operation is energized each time for a time sufficiently shorter than the power-off time, and the increase in the number of revolutions is further suppressed as compared with the above-described "medium" mode operation, so that the rotation of the stirring body 7 is performed. The method of increasing the number is further suppressed, and a slower (weaker) water flow is generated in the washing tub 5 than in the above-described “medium” mode operation.
That is, in this case, the washing operation is performed in the “weak” mode.

FIG. 8 shows the relationship between the washing time and the washing ratio in each of the above-mentioned washing operation modes. In order to obtain a washing ratio of 1.0, it takes 15 minutes according to the "weak" washing operation mode. In short,
While the "medium" washing operation mode takes 10 minutes,
It can be seen that according to the "high" washing operation mode, only five minutes can be required.

When the set time by the operation knob 28 of the washing timer 8 ends, the buzzer 35 is energized by closing the second timer switch 24 of the washing timer 8 to notify the end of the washing operation. Then, when the first timer switch 23 and the second timer switch 24 are opened, the motor 38 for the washing operation is cut off, the washing operation is terminated, and the buzzer 35 is cut off. End notification. Thus, the washing timer 8 functions as control means for controlling the washing operation, and the water flow changeover switch 9 functions as intensity changing means in the washing operation mode.

The dehydration timer 10 functions as a control means for controlling the dehydration operation. When the dehydration lid 12 is closed (the lid switch 33 is closed), the dehydration timer 10 is controlled.
When the operation knob 31 is set to a desired time position in the surrounding selection index shown in FIG.
Is closed, the motor 34 for the spin-drying operation is energized via the lid switch 33 and the timer switch 30 to rotate the spin-dry basket in the spin-drying tub 6. Further, also in this case, when the set time by the operation knob 31 of the dehydration timer 10 ends, the timer switch 30 is opened, the motor 34 for dehydration operation is turned off, and the washing operation is terminated.

As described above, in the present configuration, the washing operation in the "strong" mode can be executed. In the washing operation in the "strong" mode, the reed switch 16 is closed, that is, the washing tub 5 is closed. This is performed only when the opening on the upper surface is closed by the washing lid 11, that is, is performed on the condition that the closing of the washing lid 11 is detected by lid opening / closing detecting means for detecting the opening / closing of the laundry lid 11. is there.

The opening on the upper surface of the washing tub 5 is
In the closed state, even if a violent splash of water occurs in the washing tub 5, it does not reach the outside of the washing tub 5 with the washing lid 11, and is thus “strong” in the washing tub 5. A washing operation in a mode can be performed without worrying about water splashing. According to the washing operation in the "strong" mode, the required washing performance can be obtained in a short time as shown in FIG. 8, and the rinsing is included in the laundry in a short time and with a small amount of water. Since a sufficient amount of detergent can be provided, it is possible to shorten the time required for washing and reduce the amount of water used.

In particular, in the case of the above configuration, the washing lid 11
The lid opening / closing detecting means for detecting the opening / closing of the lid is constituted by a magnet 14 provided on the washing lid 11 and a reed switch 16 provided on the side of the main body 1 where the washing tub 5 is located in correspondence thereto. The detection can be performed without forming a hole or the like for detection on the main body 1 side, and the waterproof performance against water splashing from the inside of the washing tub 5 for executing the washing operation in the “strong” mode is more preferably ensured. And the structure can be simplified accordingly.

Further, in the above configuration, the magnet 14 is provided at a position separated from the upper surface 11b, which is the outer surface of the washing lid 11, so that a magnetic card such as a telephone card can be directly or laundry. Even if it is placed on the washing lid 11 in a state in which it is put in, the magnet can be separated from the magnet 14 so that the magnetic recording contents will not be disordered.

In addition, an inclined surface 19 is formed in a portion of the upper surface 11b of the washing lid 11 corresponding to the magnet 14, whereby a magnetic card such as the telephone card can be moved along the inclined surface 19. Since it can be dropped and moved away from the magnet 14, it is possible to prevent the magnetic recording contents from being further disordered. Further, the inclined surface 19 is provided for the washing lid 1.
In the upper surface 11b of the main body 1, it is formed at an edge located at the outer peripheral portion of the main body 1, whereby magnetic cards such as telephone cards that have fallen along the inclined surface 19 can be directly dropped out of the main body 1. As a result, the magnetic recording contents can be further distant from the magnets 14, so that the magnetic recording contents can be prevented from being further disordered.

In the inside of the washing lid 11, a rib 20 is provided at an edge located on the outer periphery of the main body 1 so as to overlap the inside of the washing tub 5, whereby water splashes from the inside of the washing tub 5. Can be more reliably prevented from reaching the outside of the main body 1, so that the rib 20 functions as a waterproof wall, and further ensures waterproofness for performing the washing operation in the “strong” mode. Can be.

Further, the lid opening / closing detecting means for detecting the opening / closing of the washing lid 11 includes a switch (a reed switch 16 in the case of the above configuration), and the switch is connected in series with the motor 38 for the washing operation. When the washing lid 11 is opened during the washing operation, the switch 38 is opened to immediately turn off the motor for the washing operation, and the washing operation is stopped. Can be more reliably prevented from reaching the outside of the main body 1 and the measures against water splash for executing the washing operation in the "strong" mode can be more reliably performed.

In addition, a see-through portion 13 is provided at a substantially central portion of the upper portion of the washing lid 11 facing the inside of the washing tub 5, whereby the inside of the washing tub 5 is closed. Water splashing from the inside of the washing tub 5 can be more reliably prevented from reaching the outside of the main body 1, and the waterproof property for executing the washing operation in the “strong” mode can be achieved. Can be more favorably secured.

FIG. 9 shows a second embodiment of the present invention. Only parts different from the first embodiment will be described. In this case, the switch operation portion 41 is extended rearward from the rear side wall portion 11a on the washing lid 11, and a hole 42 is formed in the front wall portion 4a of the operation panel 4, and further the rear side (in the operation panel 4). The microswitch 43 is disposed on the mounting portion 18 at the forefront of the mounting plate 17, and the actuator 43a of the microswitch 43 always projects forward (when the washing lid 11 is open) from the hole 42 as indicated by a two-dot chain line. I have.

With this configuration, when the washing lid 11 is closed (attached), the switch operation unit 41
The micro switch 43 is closed by pressing the actuator 43a of the micro switch 43 as shown by the solid line. When the washing lid 11 is opened (removed) from this state, the switch operation section 41 operates the actuator 43 of the micro switch 43.
a by releasing the pressing of the microswitch 4.
3 opens. Therefore, the switch operating section 41 and the microswitch 43 function as lid opening / closing detecting means instead of the magnet 14 and the reed switch 16 described above.

FIG. 10 shows a third embodiment of the present invention, and only parts different from the first embodiment will be described. In this case, the hinge portion 51 extends rearward from the rear side wall portion 11a on the washing lid 11, and the front wall portion 4 of the operation panel 4 is provided.
a, and a hole 52 is formed in the
Through. Then, in the operation panel 4, the mounting plate 17
The hinge 51 is pivotally supported by a hinge 51 via a shaft 51a. Thus, the washing lid 11 is pivotally supported in the same manner as the dehydrating lid 12 so as to be vertically rotatable. The opening on the upper surface of the tank 5 is opened and closed.

In this case, a switch operation section 54 is formed on the hinge section 51, while the operation panel 4
A cover switch 55 composed of a movable contact piece a and a fixed contact piece b is provided on the inner mounting plate 17 by a switch support portion 56, and the movable contact piece a of the lid switch 55 is provided at an end of an insulating member 57. When the washing lid 11 is closed by operating the switch operating section 54 through the, the movable contact piece a of the lid switch 55 is brought into contact with the fixed contact piece b as shown by a solid line to close the washing cover 11, and the washing is performed from this state. When the lid 11 is opened, as shown by the two-dot chain line, the movable contact piece a of the lid switch 55
Is separated from the fixing piece b to be opened. Therefore, the switch operation unit 54 and the lid switch 55 are composed of the magnet 14, the reed switch 16, and the switch operation unit 4 described above.
It functions as a cover opening / closing detecting means in place of 1 and the microswitch 43.

FIG. 11 shows a fourth embodiment of the present invention, and only parts different from the first embodiment will be described. In this case, a luminous body as a notification means, for example, a lamp 61 is provided near the position of “strong” in the selection index of the operation knob 29 of the water flow changeover switch 9. The lamp 61 is in a state in which the washing lid 11 is not closed (a state in which the reed switch 16, the micro switch 43, and the lid switch 55 are not closed, that is, a state in which the lid opening / closing detecting means does not detect the closing of the washing lid 11). Water flow switch 9
Is turned on when the operation knob 29 is set to the "strong" selection index position (closed between the contact pieces a and b), whereby the usage pattern is incorrect (the washing lid 11 is not closed). Error when trying to do "strong" mode laundry operation
Can be notified to the user.

In each of the above embodiments, the present invention is applied to the washing tub 5.
The present invention is applied to a two-tank type washing machine in which the washing tub 6 and the spin-drying tub 6 are arranged side by side. However, the present invention is not limited to this. In the case of a dehydrating / washing machine that is also used for one, there is a difference whether the water splash from the washing tub directly goes out of the main unit (two-tub type washing machine) or falls in the main unit (dehydrating / combined washing machine). The same applies to those having a lid that opens and closes the opening on the upper surface of the washing tub (inner lid in the case of a washing machine that is also used for dehydration).

The intensity of the washing operation mode may be switched by selecting the number of revolutions of the motor 38 instead of selecting the cut-off power ratio to the motor 38 for the washing operation. Further, the control of the washing operation may be performed by using a control device including a microcomputer instead of the washing timer 8.

In addition, for example, the upper surface 11 of the washing lid 11
Even if a curved surface such as an arc is formed instead of the inclined surface 19 in a portion corresponding to the magnet 14 in b, the same operation and effect as the inclined surface 19 can be obtained. Further, the inclined surface 19 or the curved surface may be provided not on the edge located on the outer peripheral portion of the main body 1 in the upper surface 11b of the washing lid 11, but on the center or the like depending on the arrangement position of the magnet 14. good.

In addition, the ribs 20 which are waterproof walls are provided not only on the edge located on the outer peripheral portion of the main body 1 but also on the inner peripheral portion of the washing lid 11, for example, on the entire peripheral portion including other portions. The see-through portion 13 of the washing lid 11 may be provided not only in the portion of the upper wall of the washing lid 11 facing the inside of the washing tub 5 but also in the entire washing lid 11. In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0054]

The present invention is as described above.
The following effects are obtained. According to the washing machine of the first aspect, the washing operation in the strong mode in the washing tub can be desired without worrying about water splashing, and the time required for washing and the amount of water used can be reduced. .

According to the washing machine of the second aspect, the detection of the opening and closing of the lid that opens and closes the opening on the upper surface of the washing tub can be performed without forming a hole or the like for detection on the main body side. In order to execute the washing operation, the waterproof property against the splash of water from inside the washing tub can be secured more favorably, and the structure can be simplified accordingly. According to the washing machine of the third aspect, even if the magnetic cards are placed on the lid, the magnetic cards can be separated from the magnet for detecting the opening / closing of the lid, thereby causing the magnetic recording contents to be out of order. You can not.

According to the washing machine of the fourth aspect, the magnetic cards can be kept away from the magnet, so that the magnetic recording contents can be prevented from being further confused. According to the washing machine of the fifth aspect, the magnetic cards can be dropped out of the main body and can be further moved away from the magnet, so that the magnetic recording contents can be prevented from being further deviated.

According to the washing machine of the sixth aspect, the splash of water from the inside of the washing tub can be more reliably prevented from reaching the outside of the main body.
Water resistance for executing the washing operation in the strong mode can be more favorably secured. According to the washing machine of the seventh aspect, it is possible to more reliably prevent the water splash from the inside of the washing tub from reaching the outside of the main body when the lid is opened during the washing operation, and perform the washing in the strong mode. Water splash countermeasures for executing the operation can be more reliably performed. Claim 8
According to the washing machine, it is possible to see the inside of the washing tub with the lid closed, and it is also possible to more reliably prevent water splashing from inside the washing tub from reaching the outside of the main body, Water resistance for executing the washing operation in the strong mode can be more favorably secured.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram showing a first embodiment of the present invention.

FIG. 2 is an overall perspective view.

FIG. 3 is a partially enlarged sectional view taken along line AA of FIG. 2;

FIG. 4 is a partially enlarged sectional view taken along line BB of FIG. 2;

FIG. 5 is a perspective view of a washing lid.

FIG. 6 is a partially enlarged plan view of the operation panel.

FIG. 7 is a diagram showing an opening / closing pattern of a timer switch of a washing timer, a washing operation mode, and performance.

FIG. 8 is a diagram showing a relationship between a washing time and a washing ratio in each washing operation mode.

FIG. 9 is a view corresponding to FIG. 3, showing a second embodiment of the present invention.

FIG. 10 is a view corresponding to FIG. 3, showing a third embodiment of the present invention.

FIG. 11 is a view corresponding to FIG. 6, showing a fourth embodiment of the present invention;

[Explanation of symbols]

1 is a main body, 5 is a washing tub, 8 is a washing timer, 9 is a water flow changeover switch, 11 is a washing lid (lid), 13 is a see-through portion, 14
Is a magnet (cover open / close detecting means), 16 is a reed switch (cover open / close detecting means), 19 is an inclined surface, 20 is a rib (waterproof wall), 25 is a third timer switch of a washing timer,
26 is a fourth timer switch of a washing timer, 27 is a fifth timer switch of a washing timer, 38 is a motor for washing operation, 41 is a switch operating unit (cover open / close detecting means), and 43 is a micro switch (cover open / close detection). Means), 5
Reference numeral 4 denotes a switch operation unit (cover open / close detection means), and 55 denotes a cover switch.

Claims (8)

[Claims] 1. A washing tub provided with a lid for opening and closing an opening on an upper surface of a washing tub, wherein a lid opening / closing detecting means for detecting opening and closing of the lid is provided, and a washing operation in a strong mode in the washing tub is performed. A washing machine characterized in that the detection is made on condition that the lid is closed by the lid opening / closing detecting means. 2. A lid opening / closing detecting means, comprising: a magnet provided on the lid;
2. The washing machine according to claim 1, further comprising a reed switch provided on the main body side where the washing tub is located. 3. The washing machine according to claim 2, wherein the magnet is provided at a position separated from the outer surface of the lid. 4. The washing machine according to claim 3, wherein an inclined surface or a curved surface is formed at a portion corresponding to the magnet on the outer surface of the lid. 5. The washing machine according to claim 4, wherein the inclined surface or the curved surface is formed on the outer surface of the lid at an edge located on the outer peripheral portion of the main body. 6. The washing machine according to claim 1, wherein a waterproof wall overlapping the inside of the washing tub is provided at an edge portion located at an outer peripheral portion of the main body in the inner portion of the lid. 7. The washing machine according to claim 1, wherein the lid opening / closing detecting means includes a switch, and the switch is connected in series with a washing operation motor. 8. The washing machine according to claim 1, wherein a see-through portion is provided on at least a portion of the lid upper wall portion facing the inside of the washing tub.