JPS59144486A - Washer - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention provides a method for rinsing laundry (hereinafter referred to as The present invention relates to a washing machine that performs a washing machine (referred to as "overflow rinsing").

[Prior art]

Generally, in this type of washing machine, during overflow rinsing,
Because the rotor blades are rotated at high speed for a long period of time, a vortex is generated in the center of the washing tub that draws the water and laundry downward, so the bubbles floating on the water surface in the washing tub are They gather at Therefore, even if overflow rinsing is performed, the bubbles floating on the water surface in the washing tub cannot flow out from the overflow port.

Users of washing machines should be aware that the bubbles floating on the surface of the water in the washing tub do not disappear no matter how long the washing machine is over-rinsed.
Because people sometimes believe that sufficient rinsing is not being done and set a longer rinsing time, consuming more water than necessary, they are unable to conserve water.

[Purpose of the invention]

The purpose of the present invention is to allow the bubbles floating on the water surface in the washing tub to flow toward the outer periphery of the water surface without gathering in the center of the water surface, thereby smoothly removing the bubbles floating on the water surface during overflow rinsing. By letting it flow into the outlet,
The point is that the above problems are solved.

[Summary of the invention]

The gist of the present invention is to provide a washing machine equipped with at least a washing tub having an overflow port formed in an inner wall thereof and a rotary blade that rotates forward and reverse at the inner bottom of the washing tub, when overflow rinsing occurs in the washing tub. A swirling current that draws water and laundry downward does not occur, and the rotation speed of laundry located at the outer periphery of the laundry tub is smaller than that of laundry located at the center of the laundry tub. By rotating the rotor blades in the forward and reverse directions, the bubbles floating on the water surface in the washing tub flow smoothly toward the overflow port.

[Embodiments of the invention]

EMBODIMENT OF THE INVENTION Hereinafter, this invention will be explained in detail based on Example drawing.

In FIGS. 1 and 2, a two-tub washing machine includes an outer frame 1 made of steel plate, a base 2 made of synthetic resin on which this outer frame 1 is placed, and a synthetic resin housed in the outer frame 1. A washing tub 3 made of synthetic resin, a water receiving tank 4 made of synthetic resin that is integrally formed with the washing tub 3 and housed within the outer frame 1, a dewatering tub 5 housed within the water receiving tank 4, and a washing tub. A rotary blade 6 provided at the center of the bottom of the rotary blade 3, a rotating mechanism 7 that controls the rotation of the rotary blade 6, a washing motor 8 that serves as a driving source for the rotary blade 6, and a driving source for the dehydration tank 5. It is equipped with a dewatering motor 9 and an operation panel box 1O made of synthetic resin that is removably provided above the outer frame 1 using the upper opening edges of the washing tub 3 and the water receiving tub 4.

The upper end opening of the water receiving tank 4 is covered by a dehydration cover 11 having a dehydration inlet 10a. As shown in FIG. 1, the upper opening of the washing tub 3 is provided with an inner washing lid 12 shaped like a saucer and transparent, and an outer washing lid 13 covering the inner washing lid 12. On the dehydration cover 11, as shown in FIG. 1, a dehydration inner lid 14 and a dehydration outer lid 15 covering the dehydration inner lid 14 are provided. The laundry inner lid 12, the laundry outer lid 13, the dehydration inner lid 14, and the dehydration outer lid 15 are all made of synthetic resin.

The dehydration inner lid 14 is provided with a sulin (e) 14a whose size is set to such an extent that when the dehydration outer lid 15 is opened, it can be confirmed whether or not the dehydration tank is rotating 50 times. The washing inner lid 12 has a recess 12a.
An introduction port 12b provided in the center of the recess 12a, a mature tree hole 12C provided on the entire surface of the recess 12a, and a large number of lips 12d provided in the recess 12a are provided. Many replies 12d
The size of the plate is set so that it functions as a washing plate. The inlet 12b is connected to the rotary blade 6 when the washing inner lid 12 is closed.
It is located directly above the hollow space body 19 of. The bottom surface of the recess 12a is gently sloped toward the fathom 12b. The washing inner lid 12 and the dehydrating inner lid 14 are configured to be openable and closable and detachable. The washing outer lid 13 and the dehydrating outer lid 15 are detachable.

The operation panel box 10 houses electrical components constituting an electric circuit that controls the washing motor 8 and the like. A water supply port 10a is formed in the center of the top surface of the operation panel box 10, to which a water supply hose connected to a water faucet or the like can be attached. A water passage 10C is provided in the operation panel box 10 so that water entering from the water supply port 10a flows out from the outlet 10b provided at the lower front of the operation panel box 10.

The shapes of the outlet 10b and the recess 12a are determined so that the water flowing from the outlet 10b flows onto the recess 12a. The water flowing from the outlet 10b is made to spread over the entire surface of the recess 12a.

The upper surface of the washing inner lid 12 is located below the upper surface of the washing tub 3 so that the water overflowing from the recess 12a does not overflow outside the outer frame 1.

A shaft portion 12e is provided on the rear left and right side walls of the laundry inner lid 12.

12f is integrally formed. The shaft portion 12e is rotatably fitted into a U groove portion 3b formed in the upper end rim 3a of the washing tub 3. The shaft portion 12f is rotatably fitted into a U groove portion 11b formed in the dewatering cover 11. The front left end portion 12g of the laundry inner lid 12 is placed on a stepped portion 3C formed at a corner portion of the inner wall of the laundry container 3. Front right end 1 of laundry inner lid 12
2h is placed on a canopy-shaped stepped portion 11C integrally formed on the dehydration cover 11. The shaft portion 12 is provided in the U groove portions 3b and llb.
e, stop bar 3 that prevents 12f from coming off upwards
d, 12; is formed. The diameter d of the shaft portion 12e is U
The dimension of the gap formed between the groove portion 3b and the stopper 3d is set to be smaller than the dimension t.

A slit 11d is formed in the dewatering cover 11 adjacent to the U-groove portion 11b. When the laundry inner lid 12 is opened, the protrusion 12j formed at the rear end of the laundry inner lid 12 elastically deforms a portion of the dehydration cover 11 and moves as shown by the dashed line in FIG. 12 remains open.

The washing inner lid 12 is formed with an opening 12k through which a water overflow port 3e provided on the inner wall of the washing tub 3 can be directly viewed when the washing inner lid 12 is closed. At the center of the front end of the laundry inner lid 12,
A handle 16 is provided. The handle 16 has a function as a hook to be hung on the 7 lunges 3a of the 12ft washing tub 3 in the washing basin. A bank part 12t is provided at the front end of the laundry inner lid 12 to prevent water from overflowing from the laundry inner lid 12 even if the water from the outlet 10b has a high flow rate.

An overflow filter device 17 is detachably provided at the overflow port 3e. The overflow filter device 17 has a water level display 17a.
is being done. With the washing inner lid 12 closed,
The size and position of the opening 12 are determined so that the water level display 17a can be clearly seen from the opening 12k.

The cross-sectional shape of the washing tub 3 is a rectangular shape, as shown in FIG. Ratio of horizontal dimension a to depth dimension of washing tub 3 a/
b is set to 0.9 to 1.1. The radius of curvature r1*'2+r3+r4 of the side wall corner part of the washing tub 3 is 50+
Set in the range of +m to 150m. three radii of curvature rt
# rz y rs 1kl When setting it to 00m or less, the remaining 9 curvature radius r4 is set to 120+m to 140 fighting pressure. Each side wall of the washing tub 3 has an arcuate curved surface that projects outward. The radius of curvature R of this curved surface is 10
Set in the range from 00■ to 4000■. The side wall and bottom surface of the washing tub 3 are connected by a curved surface with a radius of curvature r5 set in the range of 10 ya to 50 ya. The draft angle θ of the side wall of the washing tub 3 is set to 1/90 or less.

The rotation dead body 6 includes a disk-shaped wing body 18, a protrusion (hereinafter referred to as a hollow cylinder) 19 integrally provided on the upper central surface of the wing body 18, and a protrusion provided within the hollow cylinder 19. The system is equipped with an internal cylinder 20. The blade body 18, the hollow cylinder 19, and the internal cylinder 20 are made of synthetic resin.

As shown in FIG. gx2, the wing body 18 has three main wings 18a arranged radially when viewed from above. Main wing 18a
13 Width dimension W is in the range of lO■ to 40 order, and dimension H
is set in the range of 20W1 to 60TIm. Lord g18a
The edges should be made into smooth curved surfaces as shown in Fig. 13. The fan-shaped portion 18b of the wing body 18 is an inclined surface rising toward the hollow cylindrical body 19, as shown in FIG. The slope angle of this slope is 0! is set in the range of 5° to 20°.

The apex angle θ2 formed on the extension of the slope is 170° to 140°.
Set to a range of °. Height H of main wing 18a, fan-shaped portion 1
Since 8b is inclined, it becomes smaller as it approaches the hollow cylindrical body 19. As shown in FIGS. 11 to 15, three ailerons 19a are arranged radially around the outer periphery of the hollow cylinder 19. As shown in FIGS. The auxiliary wing 19a overlaps the main wing 18a when viewed from above the rotor blade 6. The lower end of the auxiliary wing 19a is connected to the main wing 18a by a smooth curved surface. The auxiliary Jg 19a is continuous from the do portion of the hollow cylindrical body 19 to the top, and is formed so that the width dimension W and the dimension hl become smaller toward the upper part of the hollow cylindrical body.

A mounting boss 19b and a communication hole 19Ct are formed in the lower part of the hollow cylindrical body 19. A large number of water intake holes 19d'fr are formed on the outer periphery of the hollow cylindrical body 19. Water entering the hollow cylinder 19 from the water intake hole 19d is pumped by the back surface of the blade body 18, passes through the communication hole 19C and the real part of the blade body 18,
Return to laundry 4113.

At the upper end of the guide cylinder 20, as shown in FIG. 11, a camp body 20a covering the upper end of the hollow cylinder 19 with gold is integrally formed. The camp body 20a has a ring-shaped groove 20b,
The cross-sectional shape of the ring-shaped groove 20b is J-shaped.

A plurality of fitting lips 20C are provided at the lower part of the camp body 20a.
is integrally formed on the outer periphery of the guide cylinder 20. Guide cylinder 20
is held at the center within the hollow cylindrical body 19 by the fitting rib 20c.

A nozzle 20d is formed at the lower end of the guide cylinder 20, as shown in FIG. A net-like water hole may be formed in the center of the guide cylinder 20. On the outer periphery of the nozzle 20d,
Install the lint filter 21. Lint filter 2
1 includes a disk-shaped rope portion 21a, a ring body 21b that is integrally provided on the outer periphery of the disk-shaped rope portion 21a and that fits into the inner wall of the hollow cylinder 19, and a ring body 21b that is provided at the center of the disk-shaped rope portion 21a. A fitting body 21C that is integrally provided and detachably fits into the nozzle 20d.
It consists of

The lint that has flowed into the intake hole 19d of the hollow cylindrical body 19 and into the gap 19e between the hollow cylindrical body 19 and the guide cylinder 20 is deposited on the lint filter -21.

The outer diameter of the hollow cylindrical body 19 is set in the order of 40 mm to 70 mm. The ratio D/b between the diameter of the blade body structure 8 of the rotary blade 6 and the depth dimension of the washing tub 3 is set in a range of 0.6 to 0.8. A large number of lips are provided radially on the back surface of the wing body 18.

The rotation control mechanism 7 is fixed to the external bottom surface of the washing tub 3 using a mounting plate 22, as shown in FIG.

The rotation control mechanism 7 includes a gear reduction mechanism 23, this gear reduction mechanism 234ρ output shaft 24, a human power shaft 25 of the gear reduction mechanism 23, and a driven pulley 2 fixed to this human power l11125.
6, and a drive pulley 2 fixed to the rotating shaft of the washing motor 8.
7, and this drive pulley 27 and driven pulley 26 (
A mounting boss 19b with rotation x6 is attached to the upper end of the output shaft 24.

The rotation of the washing motor 8 is controlled by the rotation control mechanism 7.
The speed is decelerated to a range of 7 to 11 degrees and then transmitted to the rotor blade 6. The rotational speed of the rotary blade 6 is set in a range of 100 to 250 units. The washing motor 8 uses a single-phase induction motor with a four-pole capacitor star run. The washing motor 8 is fixed onto the base 2 via a vibration isolating rubber 29. The rotation speed of rotation R6 is preferably set within 3 rotations in order to prevent laundry from getting entangled in the hollow cylinder 19.
In addition, in order to avoid generating a vortex that draws the laundry to the lower center of the washing tub 3 during washing and rinsing, it is preferable to set the number of rotations within 5 rotations.

As shown in FIG. 1, the upper end of the dehydration tank 5 is provided with a hollow ring-shaped fluid 5a containing saline. Directly connected to the rotating shaft of the motor 9. At the bottom of the water tank 4,
A bellows 31' serves as a vibration-proof bearing and a water seal for the rotating shaft 5b.
f: Provided. The dewatering motor 9 is supported on the base 2 in a vibration-proof manner by a vibration-proof spring 32 and a vibration-proof rubber tube 33. The dehydration tank 5 is made of synthetic resin and is 14001- at 50H2,
And it rotates 170 (lrFte) at 60H2.

The overflow filter device 17 is detachably attached to the overflow port 3e formed by recessing a part of the inner wall of the washing tub 3. At the bottom of the overflow strainer 34,
As shown in FIG. 16, a telescopic overflow hose 35 is attached. A drain valve body 36 whose central portion penetrates and forms a part of the overflow passage is attached below the overflow hose 35. The drain valve body 36 comes into contact with and separates from the upper surface of a drain port 37 provided at the outer bottom of the washing tub 3. When draining water, the water in the washing tub 3 is drained by separating the drain valve body 36 from the drain port 37. A spring 39 is provided above the drain valve body 36. By lowering the operating lint 38 using the spring 39, the drain valve body 36 is brought into pressure contact with the drain port 37.

As shown in FIG. 16, the box portion of the overflow filter device 17 consists of three components: an overflow box cup 40, a partition plate 41, and an overflow strainer 34. The overflow box cover 40 is attached to the surface of the overflow port 3e.
is made of synthetic resin such as polypropylene and has the structure shown in FIGS. 17 to 24.

The overflow box cover 40 consists of a cover part 42 along the inner wall of m#*13 and a bag-shaped overflow strainer moving part 43 located behind the cover part 42. The part 43 has a function of holding the partition plate 41. The cut part 42 and the overflow strainer moving part 43 are integrally molded. Opening 4 having a semicircular shape when viewed
form 4.

At the top of the cover part 42 of the 1m water box cover 40,
A bag-like opening handle 45 with two thresholds is provided for removing the cover part 42 from the overflow port 3e of the washing machine 43. The handle 45 is
It has a shape that allows you to pinch it by bending your fingers inward. A lower part of the cup part 42 is integrally provided with a flat plate-like insertion part 46 which is lowered into the washing tub 3.

On the left and right sides of the bottom part 42 of the flooded box cover 40,
A large number of small holes 47 are provided. The small hole 47 has a function of guiding water to the overflow hose 35 even when the overflow strainer 34 is clogged with lint or the like and is closed and no water flows out from the overflow strainer 34. have

As shown in FIG. 18, the overflow box cover 40 has partition plate guide grooves 48 vertically and vertically on both sides of the overflow filter moving part 430 at the rear of the cover part 42 for vertically sliding the partition plate 41. are placed in parallel. The top of the partition plate guide groove 48 extends to near the top of the overflow filter moving part 43.

Two elastic claws 42a projecting rearward are integrally formed on both sides of the handle 45 of the cover part 42 of the flood box cover 40. The elastic claw 42a has the function of detachably attaching the overflow box cover 40 to the overflow port 3e of the washing tub 3. On the back side of the overflow box cover 40, there are shown FIG.
As shown in FIGS. 23 and 24, two protruding pins 49 are provided on both sides of the opening 44. As shown in FIGS. The two protruding pins 49 are arranged at a narrow distance from the width of the partition plate 41 and support the partition plate 41 and the overflow strainer 34. The protruding pin 49 has the role of a stopper for fine vertical movement of the partition plate 41 by interfering with the wavy portion 50a provided on the partition plate main body 50 of the partition plate 41.

The polypropylene partition plate 41 is shown in FIGS. 25 to 32.
As shown in the figure, it consists of a curved partition plate main body 50 having corrugated parts 50a on both sides, and an overflow strainer holding part 51 formed integrally with this partition plate main body 50.

On the front side of the overflow strainer holding part 51 of the partition plate 41,
A protruding lip 52 is formed to fully insert and hold the curved surface of the overflow strainer 34. A ring-shaped protruding lip 53 for supporting the overflow hose 35 is provided at the intermediate portion of the overflow strainer holding portion 51 of the partition plate 41. The protruding lip 53 is formed so that the rear part is combed out and the central part becomes an opening through which overflowing water flows out.

On the upper part of the overflow strainer holding part 51 of the partition plate 41,
A U-shaped recess W54 is formed. The overflow strainer 34 is removably attached to the partition &41 by a recess 54 and a protruding lip 52. Small depressions 55 are formed on both sides of the inner front surface of the four parts 54 of the partition plate 41. Kuhomi part 5
5, the projection 34a of the overflow strainer 34 is fitted into the overflow strainer 34. The partition plate 41 is inserted along the partition plate guide groove 48 from below the back surface of the overflow box cup (-40), and is attached to the overflow box cover 40 so as to be slidable in the vertical direction.

The overflow strainer 34 made of polypropylene consists of a slit-shaped strainer portion 56, a U-shaped curved surface portion 57, and a knob 58, as shown in FIGS. 33 to 39.

Slit-shaped strainer part 56 of overflow strainer 34
The width of the curved surface portion 57 is slightly smaller than the width of the overflow strainer moving portion 43 of the overflow box cover 40. The curved surface portion 57 of the overflow strainer 34 is connected to the overflow box cup.
A slit-shaped strainer portion 56 of the overflow strainer 34 is shaped to cover the lower end of the overflow meterer moving section 43 when the overflow strainer 34 is positioned at the lowest end of the overflow strainer 40.
is approximately parallel to the water flow and approximately 5
It has 13 elongated chairs 56ai.

The lip 56a converts the cross section 4Jit of the front part 56b into the rear part 5.
6C, and the rear part 56C is made higher than the front part 56b. The four parts 59rli provided at the rear of the slit-shaped strainer part 56 are installed so as to enclose many of the recesses 54 of the overflow strainer-holding part 51 of the partition part 41.

A knob 58 of the condensate strainer 34 is provided at a lower portion of the slit-shaped strainer portion 56. Overflow strainer-3
At the lower part of the curved surface part 57 of No. 4, an arrow part 57a is provided as a guide for knowing the cylindrical shape of the washing water surface.

As shown in FIGS. 40 and 41, the washing motor 8 is rotated forward and backward in extremely short cycles by a timer 60 and a group of select switches 61. The timer 60 includes at least three cam switches c11c, 21c, and
Main switch M8 and cam switches C□, Cz, Cs
It is equipped with an e-driven timer motor. The select switch group includes at least three manual changeover switches 81
It is equipped with t 8x + Ss. The configuration is such that when any one of the select switch group 61Fi and manual changeover switches St, 82, and 8s is closed, the remaining two switches are opened.

The rotational direction and energization time of the washing motor 8 can be set by a timer 60 and a selection switch group 61, as shown in FIG. That is, when the manual changeover switch Sl is closed, the washing motor 8 rotates to zero in the forward rotation direction.
．． When the current is applied for 8 seconds to 0.9 seconds, the current is not applied for 0.5 seconds, and then the current is applied in the reverse direction for 0.8 seconds to 0.9 seconds.

This energization mode is repeated multiple times until the main switch M8 is turned off.

When the manual changeover switch S2 is closed, the washing motor 8
Energization in the forward rotation direction, s seconds to 0.9 seconds - Non-conduction time, 0.5 seconds - Energization in the reverse direction, 0.8 seconds to 0.9 seconds - Non-conduction 2.6 seconds
This process is repeated several times until the main switch Ms is turned off.

When the manual 17I changeover switch Ss t" is closed, the washing motor 8 is energized in the forward direction for 0.6 seconds - de-energized for 0.4 seconds.
The energization mode for 0.6 seconds in the reverse direction is
This is repeated multiple times until s is exhausted. Washing motor 8
The mode of energization is not limited to that shown in FIG. 41, but the energization time in the forward rotation direction and the reverse rotation direction is in the range of 0.6 seconds to 1.5 seconds, and in the non-current direction. Energizing time 0.4
Any combination can be made within the range of seconds to 3.0 seconds.

Figure 42 shows the ratio a between the horizontal dimension a and the depth dimension a of the washing tub 3.
/b and the movement of laundry in the washing tub 3 (hereinafter referred to as sub-movement). As can be seen from FIG. 42, as the ratio a/b increases, the movement of the cloth becomes worse. In particular, when the ratio a/b becomes larger than 1.1, Pi
, P2, Qt, and Q2, the movement of the laundry becomes extremely slow.

FIG. 43 shows the radius of curvature r1 of the corner portion of the side wall of the washing tub 3.
A characteristic curve of s r2 * '3 m r4 and cleaning rate is shown. As can be seen from Fig. 43, the radius of curvature r1
When + r2 * r3114 becomes 150 mm or more, the laundry only rotates around the rotary blades 6, and the laundry is less likely to be swapped up and down, resulting in a sharp drop in cleaning efficiency. Radius of curvature”js r2 * r3 *r
When the number of knots 4 becomes 50 or less, the laundry is pushed into the corner of the side wall of the washing tub 3, and the movement of the laundry becomes poor, resulting in a sharp drop in cleaning efficiency. When the horizontal dimension a and the depth dimension of the washing tub 3 are set in the range of 38011011 to 440 mm, the characteristics shown in FIG. 43 are obtained.

FIG. 44 shows the rotation angle of the rotary blade 6, cleaning rate, cloth damage, and cloth recognition characteristic curves. The experimental conditions were: rotor blade 6
To the wing book: Ratio D between the diameter of 2 and the depth of the washing tub 3
/ in the range of 0.6 to 0.8, and the ratio a/b of the horizontal dimension a to the depth dimension of the washing tub 3 in the range of 0.9 to 1.1.
The rotational speed of the rotor blade 6 is set in a range of 100r- to 2501-. The reversal period of the rotary blade 6 is normal rotation 0.6 seconds to 1.2 seconds.
Set in the range of 0.5 seconds to 3.0 seconds for one stop and 0.6 seconds to 1.2 seconds for reverse rotation. As shown in Figure 44, the rotation R
If the rotation angle of No. 6 is less than 360° (one rotation), the laundry will hardly be swayed and the cleaning rate will drop sharply. When the rotation angle of the rotary blade 6 becomes 360° or more, the cleaning rate increases rapidly. Fabric damage and fabric tangle increase as the rotation angle increases, and increase rapidly when the rotation angle exceeds 1080 degrees.

FIG. 45 shows a characteristic song #i1'! of the rotational speed of the rotary blade 6 and cleaning rate 1 fabric damage and fabric entanglement. Show r. The ratio D/b, the ratio a/b, and the reversal period of the rotary tool 6 are set in the same manner as in FIG. 44. The cleaning rate decreases significantly when the rotation speed is lower than 10° rpm, and when the rotation speed is 25° rpm or less,
When OflX exceeds 11, fabric damage rapidly progresses. In order to rotate the laundry and water by rotating the rotary blade 6 at a low speed of 10 to 250 r, it takes approximately 2
A large torque of 00Q-(7) is required. If an 8-pole or 12-pole motor was used to obtain this large torque, the shaft output torque of the motor, which has a small reduction ratio in the gear reduction mechanism 17, would have to be increased, resulting in a larger motor. And 1 forge becomes larger. When a 4-pole capacitor motor is used, the reduction ratio of the gear reduction mechanism 17 can be set to 1/11 to 1/7, and the shaft output torque of the motor is 28 kg·crn to 18 7·(7). The washing motor 8 can be made smaller and lighter by using a four-pole capacitor motor. If the rotation speed of the washing motor 8 using a 4-pole capacitor motor at 50 Hz is 1380, the rotation speed of the rotor blade 6 will be 125 ryn-i9s+-, and in '60H2, the rotation speed of the washing machine motor 8 will be 1380. The number is 167
4 rP and the rotor blade 60 rotation speed is 152 rpm ~ 23
It becomes 9rllllO.

46 to 54 show other embodiments of the present invention, and the same reference numerals as in FIGS. 1 to 15 represent the same contents. FIG. 46 shows an example in which a detergent cylinder 62 is housed within the hollow cylinder 19. The detergent cylinder 62 includes a cylinder body 62a, a bearing part 63 removably provided at the upper end of the cylinder body 62a, a stirring shaft 64 provided in the cylinder body 62a and made of a large number of radially flocked hairs, and A grip part 65 for manually rotating the stirring shaft 64 is provided. By rotating the stirring shaft 64 for the powdered soap put into the cylinder 62a, dissolution of the powdered soap is promoted.

FIG. 47 shows the detergent cylinder 62 being attached to the hollow cylinder body 1 in the same way as in FIG. 22.
It is located within 9. The difference from Fig. 46 is that the stirring shaft 6
4. With the upper bearing part! 411 A spiral protrusion and groove are formed in the receiving cover 63 so that both sides engage with each other, and a removable and rotatable knob 66 is provided at the upper end of the stirring shaft 642. With this configuration, the knob 66 When you push and pull up and down, the stirring shaft 64 moves to J E, and the 46th
It has the same effect as the detergent 'iNJ6'2 shown in the figure.

48 to 49 show a rotary blade 60 in which a hollow cylindrical body 19 is detachably attached to a blade body 18.

At the center of the upper surface of the wing body 18, a fitting protrusion 18C that fits into the inner periphery of the lower end of the hollow cylindrical body 19 is formed. When the hollow cylinder body 19 is removed from the wing body 18, as shown in Fig. 49,
Attach the synthetic resin maintenance camp 67. The inner camp 67 and the hollow cylindrical body 19 are configured to be attached to the fitting protrusion 18c using elastic claws. Hollow cylindrical bodies 19 having different shapes may be prepared in advance and used interchangeably according to the user's preference.

FIG. 50 to FIG. 51 show an example in which small recesses 68 and 69 are formed at the upper end of the hollow cylindrical body 19. The accessory case 68 shown in FIG. 50 has a structure in which a container-shaped camp having a drainage hole 68a at the bottom is detachably attached to the hollow cylindrical body 19. The accessory case 69 shown in FIG. 51 has a removable accessory case part 69b with a drain hole 69a and a lid 69C at the upper end of the hollow cylindrical body 19.

The other embodiments shown in FIGS. 52 to 54 differ from the embodiment shown in FIG. 11 in the structure for removing lint. That is, the outer wall of the hollow cylinder 19 is provided with a semicircular notch 70 having a height h2. (To) A lint filter 71 is detachably provided in the notch 70. The lint filter 71 includes a filter part 71a, a ring-shaped frame 7ib that holds the filter part 71a, and an arc-shaped handle 71C that is integrally provided on the frame 71b. frame 71
b and the handle 71C are made of transparent synthetic resin. A transparent camp 72 is detachably provided at the upper end of the hollow cylindrical body 19. According to this configuration, the state in which lint accumulates in the filter part 71a can be checked from above the washing tub 3 while the lint filter 71 is attached to the hollow cylinder 19, and moreover, it is possible to easily check the state in which lint accumulates in the filter part 71'. It is easy to use because it can be removed.

In the above configuration, in order to carry out a washing operation, the washing lid 13 is removed, the washing inner lid 12 is opened, the laundry is put into the washing tub 3, and the detergent is poured into the hollow cylindrical body 19. Insert.

Next, when he closes the laundry inner container 12 and lets the water that has flowed into the water supply port 10a flow out from the outlet 11b to the laundry inner lid 12, the water is injected into the hollow commercial body 19 through the inlet 12b. At the same time, the water flows down from the water sprinkling hole 12c toward the inner bottom of the washing tub in a shower-like manner.

The rising state of the water level of the water supplied to the washing tub 3 can be accurately determined by looking at the water level display 17aeijf of the overflow filter device 17 through the opening 12 of the washing inner cover 12, even when the washing inner cover 12 is closed. and easy to know.

When the washing tub 3 is filled with water up to the specified water level, the water supply operation is stopped, and then one of the manual changeover switches 5ly and 82.8s is closed (thereby, the rotary blades are closed for a period of time determined by the timer 32). Washing work is performed by rotating the machine 6 in the forward and reverse directions.

The detergent put into the hollow cylindrical body 19 is pumped together with the water injected into the hollow cylindrical body 19 into the washing tub 3 from the outer periphery of the back side of the comb blade body 18 through the communication hole 19 ck by the pumping action of the first rotor blade 6. It squirts into the inner bottom.

When the time set by the timer 32 has elapsed, the forward and reverse rotation of the rotary blade 6 is stopped, and the water in the washing tub 3 is drained. After draining the water in the washing tub 3, the washing inner lid 12 is opened and the laundry is replaced in the dehydration tub 5. After that, dehydration tank 5
The machine is rotated to centrifuge water that has the same detergent concentration as the laundry.

After the dehydration tank 5 has stopped, water is sprayed from above the dehydration tank 5 just before the dehydration tank 5 is stopped, further reducing the detergent concentration in the water contained in the laundry, and then spinning again. Repeat one or more times.

After this dehydration work is completed, the water from the water supply port 10a is accumulated again through the hollow segment 19 to the specified water level in the washing tub 3, and the rinsing work is carried out by rotating the rotary blades 6 in the forward and reverse directions. be exposed. The rinsing work time is set by a timer 32. Water is supplied at the start of rinsing work through the opening 12 of the inner lid 12 of the washing machine, and through the water level display 17 of the overflow filter device 17.
If you do this while watching the ae, you can easily and accurately reach the desired water level.

After the rinsing work is completed, the laundry inner lid 12 is opened and the laundry taken out from the washing tub 3 is put into the dehydration tub 5. after that,
Dehydration work is performed by rotating the dehydration tank 5 in one direction at high speed. The dehydration work time is set by the dehydration timer.

During rinsing, if water is supplied from the water supply port 10a, the water will fall into the washing tub like a shower through the water sprinkling hole 12C of the washing inner lid 12, and will efficiently remove the bubbles floating on the water surface of the washing tub 3. I can do something.

When you want to scrub parts such as the bait and sleeves,
It is preferable to attach it on the rib 12d of the laundry inner lid 12. The rib 12d is configured to have the function of a washing plate.

During the washing operation, the washing inner lid 12 is closed, so even if the water in the washing tub 3 is scattered due to the forward and reverse rotation of the rotary blades 6, the water does not flow out of the washing tub 3, and the rotating Due to the pump action of the blades 6, the water and detergent supplied into the hollow cylindrical body 19 are forcibly ejected to the inner bottom of the washing tub 3, so that the detergent dissolves in the water in the washing tub 3 very smoothly.

Water is supplied during washing and rinsing operations with the washing inner lid 12 closed, but the water level display 17ae is open 0.
12, it is easy to see the rising state of the water level, and washing and rinsing operations are not performed without knowing that water is overflowing from the overflow port 3e of the washing tub 3.

When too much water is supplied onto the washing inner lid 12, the water also falls into the washing tub 3 from the opening 12k, thereby preventing water from overflowing from the washing inner lid 12. If a gap is provided so that water can also fall from around the handle 16 of the laundry inner lid 12, overflowing of water from the laundry inner lid 12 can be further prevented. .

The rinsing operation will be explained in detail based on FIG. 55.

In this embodiment, so-called overflow rinsing is adopted in which the rotary blade 6 is rotated forward and backward while water is being supplied, and water exceeding a specified water level is caused to overflow from the overflow port 3e.

When the rinsing operation starts, as shown in Fig. 55, the laundry acts like a pump blade, and the bubbles floating on the water surface are pushed out from the center of the water surface to the outer periphery of the water surface, and are poured into the overflow port 3e. It becomes easier to flow. This phenomenon occurs when the ratio of washing water to laundry, that is, the bath ratio (t/9) is 10.
When the laundry is moving backwards and forwards (to the extent that the laundry just barely sticks out of the water), it gets rained down strongly. According to experiments, according to this embodiment, rinsing time 1 [JLl] is approximately 60% of the conventional rinsing time.
It was found that r could be shortened. Total rotational speed of rotor blade 6 2
Even if it is kept within 50 rpII1, if the rotor 6 is rotated forever in one direction, a downward vortex will be generated near the center of the water surface, and the bubbles floating on the water surface will end up in the center of the water surface.

According to experiments, it has been found that if the rotation g6 is reversed so that the number of rotations of the rotary blade 6 is within 5 times, the bubbles floating on the water surface move toward the outer periphery of the water surface. Furthermore, by forming a protrusion at the center of the upper surface of the rotary blade 6, bubbles floating on the water surface can flow out more smoothly into the overflow port 3e.

In order to smoothly guide bubbles floating on the water surface into the overflow port 3e, it is preferable that the height of the water surface and the height of the overflow correspond to each other. In this regard, in the overflow filter device 17 of this embodiment,
Since the overflow height can be adjusted, bubbles floating on the water surface can be efficiently removed from the overflow port 3e at any specified water level.
It can be made to flow inside. Furthermore, the overflow port 3e,
Since it is formed by recessing a part of the inner wall of the washing tub 3, the bubbles pushed out from the center of the water surface to the outer periphery of the water surface can easily flow into the overflow port 3e, and the bubbles floating on the water surface can be further removed. It can be erased in a short time.

As described above, according to the present invention, by moving the bubbles floating on the water surface from the center of the water surface toward the outer periphery of the water surface during overflow rinsing, the bubbles floating on the water surface can flow into the overflow port in a short time. Since the user does not have to set the rinsing time longer than necessary, the washing machine can be changed to save water.

[Brief explanation of the drawing]

1 to 45 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a partially cutaway perspective view, FIG. 3 is an enlarged sectional view of the main part, and FIG. The figure is a top view of the main parts, Figure 5 is an enlarged top view of the left attachment part of the laundry inner lid, Figure 6 is a view from A in Figure 5, and Figure 7 is the main part of the right attachment part of the laundry inner lid. Enlarged sectional view, No. 8
The figures are an enlarged top view of the right attachment part of the laundry inner lid, Figures 9 and 1.
Fig. 0 is an explanatory diagram of the shape of the washing tub, Fig. 11 is an enlarged sectional view of the rotor blade, Fig. 12 is an IF sectional view of Fig. 11, Fig. 13 is a sectional view taken along the line ■-■ of Fig. 12, and Fig. 14. is a cross-sectional view of 111 in Fig. 11, Fig. 15 is a cross-sectional view taken along the line ■-■ in Fig. 11, Fig. 16 is an enlarged sectional view of the overflow eye part, Fig. 17 is a surface view of the overflow box cover, and Fig. 18 is a cross-sectional view of the ■-■ cross-sectional view of Fig. 17, 1st
Figure 9 is the back view of the overflow box cover, Figure 20 is the 17th
Figure 21 is a cross-sectional view taken along ■-■ in Figure 17, Figure 22 is a top view of Figure 17, Figure 23 is a cross-sectional view taken along ■-■ in Figure 17, and Figure 24. is a bottom view of Fig. 17, Fig. 25 is a surface view of the partition plate, Fig. 26 is a top view of Fig. 25,
Figure 7 is a bottom view of Figure 25, and Figure 28 is the X-X of Figure 25.
Cross-sectional view, Figure 29 is the XI-XIX cross-sectional view in Figure 25.
Figure 0 is a exposed surface view of the M store in Figure 25, Figure 31 is a left side view of Figure 25, Figure 32 is an xm-xm sectional view of Figure 25, and Figure 33 is a surface view of the overflow strainer. , Figure 34 is Figure 33
35 is a top view of Fig. 33, Fig. 36 is a xv-xv sectional view of Fig. 33, Fig. 37 is a back view of Fig. 33, and Fig. 38 is a top view of Fig. 33. Left side view of the figure,
Fig. 39 is a sectional view taken along line xvi-x in Fig. 33, Fig. 40 is an electric circuit diagram, Fig. 41 is a diagram showing the relationship between the energizing time of the washing motor and switches, and Fig. 42 is a diagram showing the relationship between cloth movement and ratio a/ Fig. 43 is a characteristic curve diagram of the cleaning ratio and the radius of curvature of the corner of the side wall of the washing tub, and Fig. 44 is a characteristic curve of the cloth entanglement rate, cloth damage rate, cleaning ratio, and rotation angle of the rotor blade. Figure, No. 45
The figure is a characteristic curve diagram of the cloth entanglement rate, cloth damage rate, cleaning ratio, and rotational speed of the rotor blade. Figures 46 to 54 are different
46, 47 and 48 are enlarged cross-sectional views of the rotor blade, FIG. 49 is an enlarged cross-sectional view of the main part with the sleep cap 7 attached, and FIGS. 50 and 51. Figure 52 is an enlarged cross-sectional view of the upper part of the hollow cylindrical body, Figure 52 is an enlarged cross-sectional view of the rotor, Figure 53 is a top view of the lint filter, and Figure 54 is an
It is a cross-sectional view of ■-X■. FIG. 55 is an explanatory diagram of the operation of the present invention. 3... Washing tub, 3e... Overflow port, 6... Rotating blade,
12...1st opening //) 2nd opening Figure 11 Figure 12 Figure 8b Figure 13 Figure 140 Notebook 1S Figure Figure 20 Figure 21 Figure 2z Figure 23 Figure 24 Figure 4θ Figure 2q Figure 23 ζ0 No. 290 Note 30 Figure 33 Box diagram Figure 35 Figure 34 S"t. You4C) 'fi ¥] 41 [21 Kamui SIS CIC>'lol
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Claims (1)

[Scope of Claims] 1. In a washing machine equipped with at least a washing tub having an overflow port formed in an inner wall thereof and a rotary blade that rotates forward and backward at the inner bottom of the washing tub, when an overflow occurs, the above-mentioned There is no eddy current that draws the water and laundry in the washing tub downwards, and the rotating speed of the laundry located in the center of the washing tub is lower than that of the laundry located on the outer periphery of the washing tub. This washing machine is characterized by a structure in which the rotating shaft is rotated in forward and reverse directions so that the rotation speed is reduced. 2. The rotational speed of the rotary blade is within 250 rpm,
and the number of rotations is set within 5 times, and the ratio of the diameter of the rotary blade to the depth dimension of the washing tub is 0.6 to 0.8.
A washing machine according to claim 1, characterized in that the washing machine is set within the range of . 3. The washing machine according to claim 1, wherein the overflow port is formed by recessing a part of the inner wall of the washing tub. 4. The washing machine according to claim 1, wherein a protrusion is provided on the upper center surface of the rotary blade.