JPS6321270Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a control device for an automatic reversing washing machine that can generate water flows at several different reversal times using one control device.

Conventional technology Conventionally, in this type of automatic reversing washing machine, the amount of laundry,
The washing effect can be enhanced by selectively using various water streams with different reversal times (reversal cycles) depending on the type of fabric, degree of dirt, etc., but the control of these washing machines is difficult. Each device has a timer with a reversing switch;
This method uses a combination of multiple select switches to create several different levels of water flow, and in addition to a timer, this type of method requires a large number of select switches to switch electrical circuits, and the washing machine itself It has the disadvantage that it is prone to failure due to the complicated internal wiring and cannot be provided at a low price. Furthermore, the operation for selecting the water flow at each stage is complicated and cumbersome, and it is difficult for housewives and others who often operate washing machines to perform the operations accurately.

Problems that the invention attempts to solve This invention attempts to improve the above points, and includes:
An object of the present invention is to provide a washing machine control device in which water flows with several different reversal times can be arbitrarily selected by simply operating each control device with a single touch.

Means for Solving the Problems An embodiment of the present invention will be described below with reference to the drawings. First, as shown in FIG. The main shaft is supported by the case 3, and the reduction gear system G is arranged inside the timer case 3 using the timer motor TM as the driving source (Fig. 4).
It is designed to travel through the . Further, a set knob 5 having a pointer 4 is fixed to the upper end of the main shaft 2 passing through the panel plate 1.

Reference numeral 6 denotes a switching shaft supported by the panel board 1 for switching the reversal time, and a switching knob 8 having a pointer 7 is fixed to the upper end, and a switching knob 8 having a pointer 7 is fixed to the upper end, and a switching shaft 6 is provided on the bottom surface in the middle and lower part as shown in FIG. A first switching cam 11 having a low step surface 9 and a high step surface 10, and a small diameter portion 12 on the outer periphery.
a, 12b and a second switching cam 14 having large diameter portions 13a, 13b, respectively, are attached to the first switching cam 14.
On the lower surface of the switching cam 11 is a switching operation section 3, which will be described later.
The first switching body 32 is linked, and the second switching cam 1
A changeover switch S2, which will be described later, is connected to the outer periphery of the switch 4. In this embodiment, the switching cams 11 and 14 are provided separately, but the first switching cam 11 has small diameter parts 12a and 12b and large diameter parts 13a and 13 on the outer circumference.
The two switching cams 11 and 14 may be formed integrally, such as by forming a cam b.

Reference numerals 15 and 16 are time scales and indicators respectively provided on the upper surface of the panel board 1. As shown in FIG.
270 degrees) and a "weak/soft time scale" with a maximum set time of 7 minutes and 30 seconds (270 degrees at the set angle), and index 16 has different inversions. "Strong", "Medium" to display the water flow of time,
Symbols for "weak" and "soft" are provided.

Next, the internal structure of the timer T will be explained below with reference to FIG.

17 is a main gear, which is connected to the main shaft 2 by a friction plate 18.
A main cam 19 has a notch 20 formed on its outer circumference, and is loosely fitted onto the main shaft 2 so as to have a predetermined free rotation range for quickly disconnecting a main switch S1, which will be described later.

Reference numeral 21 denotes an output pinion of the timer motor TM shown in FIG.

22 is a frequency switching device, and the frequency switching device 2
The upper end of the operating shaft 23 of No. 2 is exposed at the upper part of the timer case 3 (Fig. 1), and is attached to a switching plate 24 that follows the rotation of the operating shaft 23 in the directions of arrows a and b (Fig. 4). The support shafts 25 and 26 are installed, respectively.
Pinion 27 for 50 Hz and pinion 2 for 60 Hz
8 is loosely fitted, and by appropriately rotating the operating shaft 23 in the directions of arrows a and b, one of the 50 Hz pinion 27 and the 60 Hz pinion 28 can be selectively connected to the gear of the reduction gear system. It is designed to switch and connect to Ga, so that the timer can be run at a constant speed on either commercial frequencies of 50 or 60 Hz. Reference numerals 29 and 30 are regulating pieces provided on the inner surface of the timer case 3, respectively, and the control pieces 29 and 30
The range of rotation in the directions of arrows a and b of 3 is restricted.

Reference numeral 31 denotes a switching operation section for switching the rotational speed of reversing cams 52 and 53, that is, the reversing time, which will be described later. Reference numeral 32 denotes a switching body of the switching operation section 31, whose upper end penetrates through the case 3 and connects the first The switching cam 11 is slidably connected to the lower surface of the switching cam 11 (Fig. 1), and the lower part is inserted into the through hole 33 of the case 3, and the switching protrusion 34, the guide protrusion 35, and the flange part 36 are formed in the middle. , furthermore, there are inclined surfaces 3 on the upper and lower surfaces of the guide protrusion 35, respectively.
5a and 35b are provided.

Reference numeral 37 denotes a return spring inserted between the flange 36 of the switching body 32 and a cylindrical part 38 formed on the inner surface of the case 3, which biases the switching body 32 in the direction of arrow d with respect to the case 3. It is.

Reference numerals 39 and 40 denote guide tube portions provided opposite to the inner surface of the case 3, and on the lower surface of the guide tube portion 39 there is a guide slope surface 41 on which the slope surface 35a of the guide protrusion 35 slides; A guide slope 42 on which the slope 35b of the guide projection 35 slides is formed on the upper surface of each of the switching knobs 8 (first
The switching body 32 is switched to the first position by rotating the
When the switching cam 11 runs over the low step surface 9 to the high step surface 10 (FIG. 2), the guide protrusion 35 moves against the guide tube portion 4.
0, it rotates in the direction of the arrow e while descending in the direction of the arrow c, and when falling from the high step surface 10 to the low step surface 9, it is guided by the guide tube portion 39 and ascends in the direction of the arrow d, as shown in the arrow. It is designed to rotate in the f direction.

Reference numerals 43 and 44 are regulating pieces provided on the inner surface of the timer case 3, which are adapted to regulate the rotation of the switching body 32 in the directions of arrows e and f.

Reference numeral 45 denotes a switching plate linked to the switching protrusion 34 of the switching body 32, which rotates around a support shaft 46 following the rotation of the switching body 32 in the directions of arrows e and f. 45 has support shafts 47a and 47b implanted therein. 48 and 49 are the support shafts 47a and 49, respectively.
A switching gear with the same diameter and the same number of teeth is fitted loosely into 47b,
At the top of the switching gear 48 is a strong/medium pinion 50.
However, at the upper part of the switching gear 49, a weak/soft pinion 51 is formed integrally with the switching gears 48 and 49, respectively. The switching gears 48 and 49 are both gears Ga of the reduction gear system G loosely fitted to the support shaft 46.
The strong/medium pinion 50 and the weak/soft pinion 51 are always connected to the gear Gc of the reduction gear system G, as will be described later. In this embodiment, the weak/soft pinion 5
1 assumes that the diameter and number of teeth of each pinion 50, 51 are set so as to move the reversing cams 52, 53 and the main shaft 2 (described later) at twice the speed of the heavy/medium pinion 50. Switching plate 45, support shaft 4
6. A deceleration switching device S is constituted by the switching gears 48, 49 and the gear Ga. Then, rotate the switching knob 8 to set the pointer 7 to the "strong" position of the indicator 16.
Alternatively, when the display is set to "Medium", the switching body 32 engages with the low step surface 9 of the first switching cam 11 (Figs. 1 and 2), and the high/medium pinion 50 switches between the reduction gear system G. Connect the gear Gc and also set the pointer 7 to the “weak” point of the indicator 16.
Or, when matching with the display of “Soft”, switch body 3
2 engages with the high step surface 10 of the first switching cam 11, and the weak/soft pinion 51 becomes the gear of the reduction gear system G.
It is designed to be connected to Gc.

Reference numerals 52 and 53 are both reversing cams having a plurality of steps on the outer periphery, 52 is a strong/weak reversing cam 53 is a medium and soft reversing cam, and the cams 52 and 53 are connected to a reduction gear system G, respectively. It is fixed to gears 54 and 55, and loosely fitted to a camshaft 56, respectively.

S1 (Figs. 4 and 5) is the main switch of the washing machine, and is turned off when the protrusion 58 of the movable contact piece 57 falls into the notch 20 of the main cam 19, and turned on when it rides on the outer peripheral surface. ing.

S2 (Figures 1, 2, and 5) is a switch that changes the electric circuit and the water flow of the washing machine, and has two contacts S2A and S2B. When the display is set to “strong” or “weak”, the convex portion 60 (FIG. 2) of the movable contact piece 59 is connected to the large diameter portion 1 of the second switching cam 14.
3a and 13b, the contact S2A turns on, and when the pointer 7 is aligned with the indication of "medium" or "soft" on the index 16, the convex portion 60 of the movable contact piece 59 is connected to the second switching cam 14. The contact S2B is turned on by engaging with the small diameter portions 12a and 12b.

RS1 (Figures 4 and 5) is a strong/weak reversing cam 52
There are two contact points 1 with a reversing switch for strong and weak linkage.
RS2 (FIGS. 4 and 5) is a medium/soft reversing switch linked to a medium/soft reversing cam 53, and has two contacts 2a, 2b.

Figure 5 is a wiring diagram, where E is the power supply and M is the washing motor.

Figure 6 is a timer chart for each switch.
1 is ``strong,'' 62 is ``medium,'' 63 is ``weak,'' and 64 is ``soft,'' washing with water streams with different inversion times.
Alternatively, the case where rinsing is performed is shown.

Effect The effect in the above configuration will be explained.

() Strong reversal First, if you want to wash with the "strong" reversal time, turn the switch knob 8 to move the pointer 7 to index 1.
When the display shows “Strong” in step 6, the selector switch S
2 (FIG. 2) is the movable contact piece 59 of the second switching cam 1.
The switching body 32 engages with the large diameter portion 13a of the switching cam 11 to turn on the contact S2A, and the switching body 32 first engages with the low step portion 9 of the switching cam 11 to switch the high/medium pinion 50 (FIG. 4).
is connected to the reduction gear system G. Then, turn the set knob 5 in the direction of arrow g (Figs. 1 and 4) according to the desired time.
When the pointer 4 is turned to match the time scale 15, the main cam 19 rotates together with the main shaft 2 in the direction of arrow g, turning on the main switch S1, energizing the timer motor TM and starting the timer operation. Then, as mentioned above, the contact S of the changeover switch S2
Since 2A is on, the strong/weak reversing switch RS1 is energized, and the strong/medium pinion 50 is energized.
Since the is connected to the reduction gear system G, washing is performed with a "strong" reversal time as shown in FIG. 661. After setting, when the main shaft 2 is energized in the direction of the arrow h and the set time has elapsed, the main switch S1 is turned off and the energization to the timer motor TM and washing motor M is cut off, and the timer stops and washing ends. .

() Rotate the switch knob 8 to move the pointer 7 to the index 16.
When the display is set to "Medium", selector switch S2
The movable contact piece 59 is connected to the small diameter portion 1 of the second switching cam 14.
2a, the contact S2B turns on, the switching body 32 does not operate, and the high/medium pinion 50 remains connected to the reduction gear system G. When a desired time is set using the set knob 5, the main switch S1 is turned on, the timer motor TM is energized, and the timer starts operating. As mentioned above, since the contact S2B of the changeover switch S2 is on, the medium/soft reversing switch RS2 is energized, and the strong/medium pinion 50 is switched on to the reduction gear system G.
62, washing is carried out at a "medium" reversal time as shown in FIG. 662.
Then, when the set time has elapsed, the main switch
1 turns off, the timer stops, and the washing ends.

() Weak reversal Turn the switch knob 8 to change the pointer 7 to the index 16
When the display shows "weak", selector switch S2
The movable contact piece 59 is connected to the large diameter portion 1 of the second switching cam 14.
3b, the contact S2A turns on, and the switching body 32 engages with the high step surface 10 of the first switching cam 11, and the switching body 32 descends in the direction of arrow c while moving in the direction of arrow e. Rotate to. Then, the switching plate 45 follows the rotation of the switching body 32 in the direction of arrow e, and the strong/medium pinion 50 is separated from the reduction gear system G, and the weak/soft pinion 51 is linked with the reduction gear system G. . When a desired time is set using the set knob 5, the main switch S1 is turned on and the timer starts operating. As mentioned above, since the contact S2A of the changeover switch S2 is on, the strong/weak reversing switch RS1 is energized, and since the weak/soft pinion 51 is connected to the reduction gear system G, the reversing cam 52 and 53 rotate at twice the speed when set to "strong" or "medium" inversion time, and the timer is set to "strong" or "medium".
The washing is carried out at a speed twice as fast as when it is set to 1, and the washing is performed at a "low" reversal time as shown in FIG. 663. When the set time has elapsed, the main switch S1 is turned off, the timer stops, and the washing process ends.

() Soft reversal Turn the switch knob 8 to change the pointer 7 to the index 16
When the "soft" display is displayed, the movable contact piece 59 of the changeover switch S2 engages with the small diameter portion 12b of the second changeover cam 14, turning on the contact S2B, and the changeover body 32 switches to the first changeover cam. 11, the switching body 32 does not operate, and the weak
The soft pinion 51 is held connected to the reduction gear system G. When a desired time is set using the set knob 5, the main switch S1 is turned on and the timer starts operating. As mentioned above, since the contact S2B of the changeover switch S2 is on, the medium/soft reversing switch RS2 is energized, and the weak/soft pinion 51 is connected to the reduction gear system G. Reversing cam 5
2,53 rotates at twice the speed when set to "strong" or "medium", and the timer rotates at twice the speed when set to "strong" or "medium".
Washing is performed with a "soft" reversal time as shown in FIG. 664. When the set time has elapsed, the main switch S1 is turned off, the timer stops, and the washing process ends.

Next, when washing is to be performed again with the reversal time set to "strong", when the pointer 7 of the switch knob 8 is set to the "strong" display of the indicator 16, the contact S2A of the switch S2 turns on, and the switch 32 engages with the low step surface 9 of the first switching cam 11, and the switching body 32 has its guide protrusion 35 guided by the guide tube portion 39 and moves upward in the direction of the arrow d by the return spring 37 while moving in the direction of the arrow f. As it rotates, the weak/soft pinion 51 is separated from the reduction gear system G, the strong/medium pinion 50 is connected to the reduction gear system G, and the reversal time is set to "strong" again.

In this embodiment, the switching operation section 31 uses one switching body 32 to switch between two different reversal times, but the shape of the switching cam 11 can be set appropriately and a plurality of switching bodies can be used. By linking them, a number of different inversion times may be used for washing. Further, in this embodiment, the deceleration switching device S is provided at a location relatively close to the output pinion 21 in the reduction gear system G, and selectively switches between the strong/medium pinion 50 and the weak/soft pinion 51 in the reduction gear system G. By linking to G, it is possible to switch not only the rotational speed of the strong/weak reversing cam 52 and the medium/soft reversing cam 53, but also the rotational speed of the main shaft 2.
When washing with the reversal time of "Soft", use "Strong".
The timer is designed to run at twice the speed when washing with the "medium" reversal time, but for example, the strong/medium pinion 50 and the low/soft pinion 51 The reversing cam 52 is selectively connected to the fixed gear 54 and the medium/soft reversing cam 53 is connected to the gear connected to the reduction gear system G provided at the front stage of the fixed gear 55, etc. By appropriately setting the location where the switching operation part 31 is provided, only the rotational speed of the strong/weak reversing cam 52 and the medium/soft reversing cam 53 can be switched, but the rotational speed of the main shaft 2 can not be changed, so that the timer is always on. It can also be configured to travel at a constant speed. Furthermore, the switching shaft 6 can be rotated by a timer so that the switching switch S2 and the switching operation section 31 can be automatically switched during washing or rinsing.

FIG. 7 shows another embodiment in which the switching body 32 of the switching operation section 31 is moved in the directions of arrows c and d. Reference numeral 71 is a set knob that is loosely fitted on the main shaft 72, and the lower part has two knobs on the outer periphery. A sword barrel 73 is formed with grooves A and B, a pointer 74 is formed in the middle, and an inner hole 76 having a recess 75 is formed in the upper part. Reference numeral 32 denotes a switching body of the switching operation section 31, which is in contact with the lower surface of the set knob 71. A fixed piece 77 has a convex portion 78, and the fixed piece 77 is fitted into the inner hole 76 of the set knob 71 and fixed to the main shaft 72. Reference numeral 79 is a regulating piece fixed to the timer case 80, which is appropriately flexible and adapted to engage with and disengage from the groove A or B of the sword barrel 73 of the set knob 71. Then, when the set knob 71 is pushed down in the direction of arrow m from the state where the regulating piece 79 is engaged with the groove A as shown in FIG.
moves from engagement with groove A to engagement with groove B,
Only the switching body 32 is pushed down in the direction of arrow c, regardless of the main shaft 72, and the washing reversal time is switched. When the set knob 71 is turned in the direction of the arrow p according to a desired time, the switching body 32 slides on the lower surface of the set knob 71, and the main shaft 72 moves between the concave portion 75 of the set knob 71 and the convex portion 77 of the fixing piece 77.
The timer is set by rotating in the direction of arrow P through the
along with the vehicle in the direction of arrow g. Further, when the set knob 71 is pulled up in the direction of the arrow n, the original state is restored, the regulating piece 79 engages with the groove A, the switching body 32 moves up in the direction of the arrow d, and the washing reversal time is switched.

Effects of the Invention As described above, the present invention consists of a main shaft 2 which uses the motor TM as a drive source and moves through a reduction gear system G, and a main switch S1 which is turned on and off by the main cam 19 mounted on the main shaft 2. , a reduction switching device S connected to the middle of the reduction gear system G and capable of selectively switching to at least two different reduction ratios by operating the switching operation section 31; and two sets of reversing cams connected to the reduction switching device S. 52, 53 and the reversing cams 52, 53
Two sets of reversing switches RS1, which are turned on and off by
RS2, and a first switching cam 1 which is attached to the switching shaft 6, has a lower surface 9 and a higher surface 10 formed on its lower surface, and has the switching operation section 31 linked to the lower surface.
1, and a small diameter portion 12 fixed to the switching shaft 6 on the outer periphery.
a, 12b and a second switching cam 14 in which large diameter portions 13a, 13b are formed;
Since it is composed of a changeover switch S2 linked to the outer periphery of the laundry, one-touch operation of the changeover knob 8 and the set knob 5 allows for 4 different levels depending on the amount of laundry, the type of fabric, the degree of dirt, etc., with just one timer. You can select the water flow for the reversal cycle, dramatically increasing the functionality of your washing machine. Moreover, the water flow can be changed without using multiple select switches like in the past.
The wiring inside the washing machine does not become complicated, breakdowns are less likely to occur, and the washing machine can be provided at a low price. Furthermore, as described above, since the water flow can be switched by extremely simple operation of the switching knob 8 and the set knob 5, it is easy to use even for women and women, and has excellent operability.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention: Fig. 1 is a partially sectional front view, Fig. 2 is an exploded perspective view of the switching shaft portion, Fig. 3 is a front view, and Fig. 4 shows the inside of the timer. 5 is a wiring diagram, FIG. 6 is a time chart, and FIG. 7 is an exploded perspective view showing an embodiment of another method for operating the switching operation piece. 2: Main shaft, 6: Switching shaft, 8: Switching knob, 9:
Low step surface, 10: High step surface, 11: First switching cam,
12a, 12b: Small diameter portion, 13a, 13b: Large diameter portion, 14: Second switching cam, 19: Main cam, 3
1: Switching operation section, 52, 53: Reversing cam, 71:
Set knob, 79: Regulation piece, S: Reduction switching device, G: Reduction gear system, TM: Timer motor, S
1: Main switch, S2: Changeover switch, RS
1, RS2: Reversing switch.

Claims (1)

[Scope of utility model registration request] A main shaft that uses a motor as a drive source and travels through a reduction gear system, a main switch that is turned on and off by a main cam mounted on the main shaft, and a switching operation section that is connected to the middle of the reduction gear system. a reduction switching device that can selectively switch to at least two different reduction ratios, two sets of reversing cams connected to the reduction switching device, and two sets of reversing cams that are turned on and off by the reversing cams.
a first switching cam that is attached to the switching shaft and has a lower surface formed with a low step and a high step, and that the switching operation section is linked to the lower surface step; and the switching shaft. a second switching cam fixed to the cam and having a small diameter part and a large diameter part formed on the outer periphery; and a switching cam linked to the outer periphery of the second switching cam to switch the electric circuit and the water flow of the washing machine. A washing machine control device featuring: