JPH04327889A - Washing machine and washing and drying machine - Google Patents

Abstract

PURPOSE:To prevent bubbles from being produced at the time of draining operation by providing the reinforcement rib of the flange for supporting the basket that has been provided inside the outer vessel of a washing machine on the outer circumferential side than the mean diameter of the flange and on the basket side, and by constituting the bottom surface of the outer vessel so as to be flat. CONSTITUTION:In a washing and drying machine for carrying out washing and drying, an outer vessel 6 to which a turning beam is integrally fixed is supported so as to be vibration-proof through a turning base inside the box-shaped outer frame, and inside this outer vessel 6, a basket 7 as a rotating vessel to be used for washing, draining, and drying is provided. The outer vessel 6 is positioned in the vertical state at the time of washing, rinsing, and draining; while it is positioned in the horizontal state at the time of drying. The basket 7 is equipped with a large pulsator inside the recessed part 7d in the center of the inner bottom thereof, and to the outermost periphery of this bottom recessed part 7d, a flange 7e is connected by means of screws. In this case, the flange 7e is provided with a reinforcement rib on the outer circumferential side than the mean diameter thereof and on the basket side, and the bottom surface of the outer vessel is formed so as to be flat.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic washing machine or a washer/dryer (hereinafter referred to as a washer/dryer) that performs everything from washing to drying.

0002

[Prior Art] For example, a conventional washing machine consists of an outer frame, a top cover and a base provided at the top and bottom of the outer frame, an outer tub provided inside the outer frame, a basket provided inside the outer tub, etc., and is used to store laundry. If you put it in the basket, it will wash and dehydrate your laundry. However, if the laundry becomes unbalanced during washing, unbalanced vibrations occur during spin-drying, causing the basket and outer tub to vibrate violently. At this time, a large stress is generated in the basket. For this reason, the basket is primarily made of plastic and is integrally molded, but the sides and bottom of the basket have reinforcing ribs to ensure sufficient rigidity. On the other hand, for reasons such as weight reduction or cost reduction, the flange that supports the basket is usually small and shaped like a starfish with only the arms extended at the bolted portion of the disk. Further, a metal basket may be used, and in this case as well, the rigidity of the basket is ensured, but the flange is almost the same as that described above. Therefore, in order to increase the rigidity of the flange, the flange is usually constructed with reinforcing ribs on the bottom side of the outer tank.

[0003] The reason why the flange is provided with reinforcing ribs on the bottom side of the outer tank is mainly to prevent detergent and lint from accumulating. FIGS. 10 and 11 show a longitudinal sectional view and a bottom view of a conventional basket and flange.

0004

[Problems to be Solved by the Invention] The above-mentioned prior art does not take into account the fact that bubbles are generated when the flange rotates during spin-drying operation and its reinforcing ribs stir up washing water that cannot be drained. There were problems such as having to wait until the water was drained completely or performing intermittent dewatering many times.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned problems and to provide a washing machine or washing/drying machine that does not generate foam during dewatering operation.

[0006]

[Means for Solving the Problems] In order to achieve the above object, a reinforcing rib for the flange is provided on the basket side, and the bottom side of the outer tank is made flat.

[0007] Furthermore, the bottom of the flange is tapered to prevent detergent and lint from accumulating, and a hole is provided at the bottom of the flange.

[0008]

[Function] The bottom side of the outer tank of the flange that supports the basket has no reinforcing ribs and is flat. Therefore, even if the basket and flange are rotated with washing water or rinsing water remaining during spin-drying operation, the flange will not run out of water, and as a result, foaming can be prevented. Further, since the bottom surface of the flange is tapered and a hole is provided at the lowest point, rinsing water and the like will not accumulate, nor will detergent or thread waste.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 10, inside a box-shaped outer frame 1 made of steel plate, a rotating beam 5 is integrally fixed via a rotating base 4 by a hanging rod 2 and an anti-vibration spring 3. Tank 6
Anti-vibration support.

[0010] Inside the outer tank 6 is provided a basket 7 (rotating tank) which has almost the same cross-sectional shape and also serves for washing, dehydration, and drying.A balance ring 8 is attached to the upper end of the basket 7 by friction welding or screwing. Attach by etc. A plurality of vertical rib-shaped lifters 7a are provided at equal intervals on the side wall of the basket 7 for rotating the cloth during drying.

A large number of grooves 7b are provided at equal intervals between the lifters 7a. A large number of dehydration holes 7c are provided in the groove 7b. At the center of the inner bottom of the basket 7, a recess 7d is formed into which a large pulsator 9 (stirring blade) is rotatably mounted. This recess is provided to prevent the pulsator 9 from catching laundry. The rigidity near the outer periphery of this recess plays an important role in the rigidity of the basket 7 in the falling direction. Therefore,
In this embodiment, the flange 7e of the basket 7 extends from the outer periphery of the recessed portion of the bottom surface of the basket 7 to a flat portion on the outside, and the basket 7 and the flange 7e are connected with screws or the like at the outermost periphery of the recessed portion of the basket 7. Further, as shown in FIG. 1, a cross-sectional view of the flange 7e has reinforcing ribs on the side of the basket 7, but no reinforcing ribs on the bottom side of the outer tank. Further, the bottom surface of the flange 7e is tapered, and a hole is formed at the lowest portion thereof.

At the upper end of the outer tank 6, an outer tank 6 and a basket 7 are provided.
The tub force bar 10 is fixed in order to prevent the laundry from falling between the two.

A drive device 11 for rotating the pulsator 9 and the basket 7 is attached to the outer bottom of the outer tank 6 via a base 12 made of a steel plate. The base 12 is approximately box-shaped and is fixed to the outer bottom (rotating beam) of the outer tank 7 with screws or the like.

As shown in FIG. 3, the drive device 11 includes a motor 12a for washing and dewatering, a motor 12b for drying, a clutch mechanism 13, a transmission mechanism 14a for transmitting the rotation of the motors 12a and 12b to the clutch mechanism 13, 14b, a brake device 15 that stops the rotation of the basket 7, and a motor 1.
Reduction mechanism 1 that decelerates the rotation of 2a and transmits it to the pulsator 9
6. Furthermore, the motors 12a, 12b and the clutch mechanism 13 are arranged in the front-rear direction when viewed from the front.

As shown in FIGS. 2 and 5, rotating beams 5 are fixed to two locations at the front and back of the outer circumference of the outer tank 6 by welding or the like. A rotating shaft 5a (
(rotation shaft) is fixed by welding, etc.

A bearing portion 4a (circular folded) provided at the center of the rotating base 4 is fitted onto the rotating shaft 5a, and a presser plate 4b is fixed with screws or the like to restrain movement in the axial direction. do.

The above-mentioned bearing mechanisms are provided at one location each at the front and rear of the outer tank.

Reference numeral 17 denotes a crank, and metal 18 is press-fitted into both ends of the crank. One end of the metal 18 is rotatably fitted into a crankshaft 19 provided on the rotation base 4, and the other end is rotatably fitted into a crankshaft 22 on an arm 21 provided integrally with the rotation motor 20.

Reference numeral 23 denotes a motor base fixed to the base 12 with screws or the like, and the rotary motor 20 is fixed thereto with screws or the like.

Reference numeral 24 denotes a blower, the suction port 25 of which is airtightly connected to an exhaust port 26 provided at the lower end of the outer tank 6 through a duct 27. Hot air circulates through the duct 27 during the drying process.

A sheathed heater 28 supplies hot air during the drying process, and is fixed to the bottom of the outer tank 6.

FIG. 8 shows a basic wiring diagram of the main washer/dryer (washing machine and dryer).

Broadly speaking, the circuits are comprised of input-related circuits, output-related circuits, load-related circuits (including actuators), and other circuits.

The input-related circuit includes the lid 1a of the outer frame 1.
When the basket 7 rotates at high speed during opening/closing and spin-drying, and the outer tub 6 vibrates due to unbalanced clothes, a safety switch 29 turns ON/OFF depending on the magnitude of the vibration, and a safety switch 29 switches the water supplied to the outer tub 6 during washing. Water level sensing circuit 3
Hz signal circuit 32 that sends 0,50/60Hz signals to the microcomputer 31, input switch reading circuit 33,
There are input switch circuits such as a door switch intake circuit 34, a current sensing circuit 35, a cloth amount sensing circuit 36, a temperature sensor 37, a humidity sensor 38, and a humidity sensing circuit 39. In addition, as an output related circuit, the microcomputer 31
a six-phase clock circuit 40 for amplifying signals from the 6-phase clock circuit 40, a progress and clock display circuit 41, a drive circuit 42 equipped with an amplifier circuit and a switching circuit for driving the load group, a buzzer 43,
There is an output circuit such as an oscillation circuit 44.

Next, as a load-related circuit, the washing motor 12
a, water supply valve 45, 46, detergent input Mg (magnet) 4
7. Softener Mg 48, valve state detection switch 50 interlocked with drain motor 49, rotation motor 20 that rotates outer tub 6 after the so-called washing process of washing → rinsing → dehydration is completed;
Motor lock M that locks the rotation motor 20 in a tilted state
g51, position sensor 52 that detects the rotational position of the outer tank 6 using a micro switch, etc., clutch Mg53, drying motor 1
A load circuit is formed from the heater (1) 54, the heater (2) 55, etc., which include the heater 2b and the sheathed heater 28.

Furthermore, as other circuits, the microcomputer 3
A clock generation circuit 56 generates the basic clock of 1, a reset circuit 58 sets the microcomputer 31 to the initial state when the power switch 57 is turned on, and an auto-off switch 59 automatically turns off the power switch 57 when the microcomputer 31 goes out of control. Runaway detection circuit 60 that cuts the target. Furthermore, auto-off switch 5
The other operation 9 also has a function of turning off the power switch 57 after a certain period of time has passed after all operations are completed.

Reference numeral 61 denotes an auto-on relay used during reserved operation, that is, a cycle of operation after a certain period of time, and has a function of turning ON after a certain period of time.

A power supply circuit 62 that supplies power to other parts
It consists of

In terms of hardware, the above circuit is composed of a membrane board 63 having a display and an operation panel, a main board 64 having an electronic circuit, a load and an actuator 65, and the like.

FIG. 9 shows an example of an operation cycle table for this washer/dryer. The operating steps include a washing step 66 and a drying step 67, and the operating cycles can be roughly divided into a full-through washing/drying cycle (fully automatic cycle) and a manual cycle.

[0031] The one-shot washing/drying cycle (hereinafter referred to as washing/drying cycle) is one that runs from the washing process to the drying process all at once, and is carried out fully automatically. It consists of wool 71, drying process 72, standard 73, finishing 74, and iron 75, and the operating time of each cycle is as indicated by diagonal lines in FIG.

Next, an example of the operation panel is shown in FIG.

76 is a power button, wash/dry button 77, wash button 78, dry button 79, start/stop button 80, display LED is a cloth amount check LED 81
, four LEDs 82 for the washing cycle, four LEDs 83 for the drying cycle, and a remaining time display and a reservation timer display 84 are provided on the surface of the operation panel. Also cover (
(not shown), a time setting button 85, a rinse button 8
6. A set button 87, a reservation timer button 88, and a drain button 89 are provided.

The present invention has the above structure.

The operation will be explained in detail below with reference to the drawings.

First, to explain the conceptual basic operation, in the washing/drying process, the washing process 66 of washing → rinsing → spin-drying is carried out in the outer tub 6.
The drying step 6 is carried out with the frame in the vertical position, that is, the state shown in FIG.
7 is completed, and after completion of the process, it is rotated to return to the state shown in FIG. 2, and one cycle from washing to drying is completed. To describe the above basic operation in more detail, first, the lid 1a and the inner lid 10a are opened and the clothes are put into the basket 7. After the charging is completed, the inner lid 10a and the lid 1a are respectively closed.

When the wash/dry button 77 on the operation panel is pressed and the start button 80 is pressed, the washing cycle starts with the standard 69 washing cycle and the standard 73 drying cycle, and the washing process 66 and drying process 67 are performed. Once the drying cycle is complete, the clothes are washed and dry and can be removed.

At this time, washing, rinsing, and dewatering are performed with the outer tub 6 in a vertical position, as described above, and just before proceeding to the drying step 67, the rotation motor 20 is energized and the outer tub 6 is moved by the link mechanism.
is tilted and rotated almost horizontally. When the outer tank 6 becomes substantially horizontal, the rotation motor 20 is stopped by the position sensor 52, the rotation motor 20 is locked by the motor lock Mg51, and the drying step 67 is performed.

In this drying step 67, since the basket 7 is rotated at low speed by the drying motor 12b, the basket 7
The clothes inside the basket 7 are lifted in the direction of rotation and fall naturally near the top of the basket 7, and at the same time, the clothes are evenly dried by being evenly exposed to warm air.

Next, to explain the operation of other wash/dry cycles, for example, if you want to perform a wash cycle other than the standard 69, first press the wash/dry button 77, then press the wash button 78 to select the desired wash cycle and start. When the button 80 is pressed, a washing/drying cycle with a desired washing cycle and a standard 73 drying cycle can be performed.

[0041] In addition, when changing only the drying cycle or when changing both the washing cycle and the drying cycle, the desired washing/drying cycle can be achieved by following the same procedure as described above.

For other single cycles, such as only the washing cycle or only the drying cycle, the desired cycle can be executed by pressing only the desired button and pressing the start button 80. Next, the operation of the flange 7e that supports the basket 7, which is a feature of the present invention, will be described. The surface of the flange 7e of the present invention on the bottom side of the outer tank has no reinforcing ribs and is flat. Therefore, even if the basket 7 and the flange 7e are rotated with washing water or rinsing water remaining during spin-drying, the flange 7e will not run out of water, and as a result, foaming can be prevented. Further, since the bottom of the flange is tapered and a hole is provided at the lowest point, rinsing water and the like will not accumulate, nor will detergent or lint.

As described above, according to this embodiment, it is possible to prevent foaming due to the flange 7e during spin-drying operation, so the basket can be rotated with washing water or rinsing water remaining, thereby shortening the total washing time. is effective. In addition, since residual water startup is also possible, the amount of unbalance generated during dewatering operation can be reduced, and vibrations of the basket 7 and the outer tank 6 can be suppressed. As a result, it is possible to provide a washing machine or washer/dryer that is highly reliable and has low vibration and noise.

[0044]

[Effects of the Invention] Since the present invention is constructed as described above, it produces the following effects.

A reinforcing rib is provided on the surface of the flange 7e that supports the basket 7 on the side of the basket 7, and the surface on the bottom side of the outer tank has a flat structure without any reinforcing rib. As a result, even if the basket 7 and the flange 7e are rotated with washing water or rinsing water remaining during spin-drying operation, the flange 7e will not run out of water, and foaming can be prevented. In addition, the bottom of the flange is tapered and there is a hole at the lowest point, so rinsing water does not accumulate.
There is no accumulation of detergent or lint.

Furthermore, since foaming caused by the flange 7e during spin-drying operation can be prevented, the basket can be rotated with washing water or rinsing water remaining, which is effective in shortening the total washing time. In addition, since residual water startup is also possible, the amount of unbalance generated during dewatering operation can be reduced, and vibrations of the basket 7 and the outer tank 6 can be suppressed. As a result, it is possible to provide a washing machine or washer/dryer that is highly reliable and has low vibration and noise.

[Brief explanation of the drawing]

FIG. 1 is an internal vertical sectional view of a washer and dryer during washing according to an embodiment of the present invention.

FIG. 2 is a side view of the washing machine according to an embodiment of the present invention, as seen from the side with the outer frame removed.

FIG. 3 is a plan view of the aircraft with the top cover removed.

FIG. 4 is a vertical cross-sectional view of the drying machine according to an embodiment of the present invention, viewed from the front.

FIG. 5 is a bottom view of the aircraft shown in FIG. 2, viewed from the bottom side.

FIG. 6 is a plan view of the aircraft shown in FIG. 2 with the top cover removed.

FIG. 7 is a cross-sectional view of the aircraft in FIG. 2 from A to G.

FIG. 8 is a circuit diagram of an embodiment of the present invention.

FIG. 9 is a diagram showing an operation cycle of an embodiment of the present invention.

FIG. 10 is a diagram showing an operation panel according to an embodiment of the present invention.

FIG. 11 is a longitudinal cross-sectional view of a conventional flange.

FIG. 12 is a bottom view of FIG. 11 seen from the bottom side.

FIG. 13 is a longitudinal sectional view of a flange according to a second embodiment of the present invention.

14 is a bottom view of FIG. 13 seen from the bottom side.

[Explanation of symbols]

1... Outer frame, 2... Hanging rod, 4... Rotating base, 6... Outer tank, 7...
Basket (rotating tank), 7b... flange, 9... pulsator (stirring blade).

Claims (7)

[Claims] Claim 1: A washing machine comprising an outer frame, a top cover and a base provided at the top and bottom of the outer frame, an outer tank provided inside the outer frame, a basket provided inside the outer tank, etc., in which the basket is supported. A washing machine characterized by having a structure in which a reinforcing rib of the flange is provided on the outer circumferential side of the flange, which is approximately the average diameter of the flange, on the basket side, and the bottom side of the outer tub is flat. 2. A washing machine comprising an outer frame, a top cover and a base provided at the upper and lower parts of the outer frame, an outer tank provided inside the outer frame, a basket provided inside the outer tank, etc., in which a flange supporting the basket is provided. A washing machine characterized by having a structure in which reinforcing ribs are provided on the basket side and the bottom side of the outer tub is flat. 3. The washing machine according to claim 1, wherein one or more holes are provided in each of the recesses surrounded by ribs on the bottom surface of the flange. 4. The washing machine according to claim 1, wherein the bottom surface of each of the recesses surrounded by ribs on the bottom surface of the flange is tapered, and a hole is provided at the lowest portion thereof. 5. A washing machine according to claim 1, wherein said outer tub is provided with receiving seats for hanging rods at four locations, and is suspended and supported from an outer frame by vibration-proof springs or the like. 6. A washing/drying machine according to any one of claims 1 to 4, characterized in that a shaft is integrally provided in the outer tub, and the outer tub is rotatably supported by a rotating base provided with a bearing. Machine. 7. According to any one of claims 1 to 4, two rotating bases are provided before and after the central portion of the outer tank, a bearing is provided in the center of the rotating base, and the outer tank is rotatably supported. The washing and drying machine is further characterized in that both ends of the rotating base are supported by hanging rods.