JPH039791A - Washing and drying machine - Google Patents

Abstract

PURPOSE:To obtain a rotation driving unit having a high reliability with less abnormal noise by a method wherein the rotation driving unit is of a simple link mechanism type which is extremely thin in height without exposing a sliding part. CONSTITUTION:Washing and rinsing are performed with an outer drum 6 in vertical position, and a rotation driving motor 35 is supplied with power just before drying process starts so that the outer drum 6 is tilted for theta by a link mechanism, When the rotation driving motor 35 rotates, an arm 37 that is solidly fixed on an output shaft 35a turns in the direction P, causing a crank 26 to be pulled in the direction Q. Thereby, the outer drum 6 is turned in the direction R on a shoulder shaft 22 fixed on a rotary beam 5. The rotation driving motor 35 is stopped by a position sensor, and locked by a motor lock to start drying process. In this drying process, as a basket is turned at a low speed by a dryer motor and tilted for 75 deg. (theta), clothes are well agitated and exposed to warm air uniformly, so that uneven drying does not occur and a high efficiency of drying can be achieved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a washer/dryer (hereinafter referred to as a washer/dryer) that performs washing and drying of household clothes, and in particular - This relates to an automatic tilting mechanism for the basket, outer tank, etc. of a tank-type washing/drying machine, which performs everything from washing to drying.

[Conventional technology]

As described in Japanese Patent Application Laid-Open No. 185296/1984, the conventional rotation mechanism is such that a pinion gear provided on the output shaft of a rotation motor meshes with a rack formed in two circular arcs to perform washing, rinsing, and dewatering. The drying process was carried out with the aquarium in a vertical position, and after the drying process was completed, the aquarium was turned sideways at approximately 90 degrees.

[Problem to be solved by the invention]

In the above conventional technology, both tooth surfaces are exposed when the rack and pinion gear mesh with each other, so water droplets etc. adhere to the tooth surfaces in a high humidity environment such as in a washing machine, and when used for a long period of time, When lubricating oil such as applied grease runs out, abnormal noises such as meshing noises may be generated from the tooth surface of the gear during rotation, or noise may be generated from the tooth surface during dehydration operation due to backlash of the gear. Also, no consideration was given to wear on tooth surfaces.

In addition, the gear requires space, which has the disadvantage that the entire product cannot be made more compact.

[Means to solve the problem]

The above object is achieved by a simple so-called link mechanism that is ultra-thin with no exposed sliding parts, and can provide a highly reliable rotation mechanism that does not generate abnormal noise.

[Effect]

This link type rotation mechanism is composed of two fulcrums and a beam made of a shaft and metal, so there is no exposure of the rotating and sliding parts of the shaft and metal parts, and the rotation movement is in an arc shape. , a low-noise, highly reliable rotating mechanism is obtained, which does not generate abnormal noise or abnormal wear.

[Example] Hereinafter, an example of the present invention will be described based on the drawings. 1st
In the figure, a hanging rod 2 is inside a box-shaped outer frame 1 made of steel plate.
The vibration-proof spring 3 supports an outer tank 6 to which a rotating beam 5 is integrally fixed via a rotating base 4 in a vibration-proof manner.

Inside the outer tank 6, there is provided a basket 7 (rotating tank) having a substantially identical cross-sectional shape and serving also for washing, dehydration, and drying.
A balance ring 8 is attached to the upper end of the basket 7 by friction welding or welding.

A plurality of vertical rib-shaped glue lids 7a for clockwise rotation during drying are provided on the side wall of the basket 7 at equal intervals.

A large number of vertical grooves 7b are provided at equal intervals between the lifters 7a.

A large number of dehydration holes 7c are provided in the vertical groove 7b.

At the center of the inner bottom of the basket 7, a recess 7d is formed into which a large pulsator 9 is rotatably mounted.

A tub cover 10 is fixed to the upper end of the outer tub 6 to prevent laundry from falling between the outer tub 6 and the basket 7.

A drainage device 11 and a driving device @12 for rotating the pulsator 9 and the basket 7 are attached to the outer bottom of the outer tank 6 via a base 13 made of a steel plate. The base 13 has a box shape and is fixed to the outer bottom of the outer tank 7 with screws or the like.

The drainage device 11 includes a valve 14 connected to the inner bottom of the outer tank 7.
and a drain hose 15 connected to the valve 14.

One end of the drain hose 15 is open, and the valve 14
When opened, water is sprayed onto a base 16 provided at the bottom of the outer frame 1.

The base 16 includes a plurality of legs 16a at the lower end, a holding portion 16b for the outer frame 1, a water receiving portion 16o, and a drain port portion 16d.

The water receiving part 16c has a structure in which the central part 16e is inclined toward the central part 16f, so that the water discharged from the drainage hose 15 can easily flow to the central part 16f.
The structure is configured to facilitate drainage from the drain port 16d provided in the drain port 16d. Note that water from the drain port 16d is discharged to the outside through an attached hose (not shown) or the like.

Ribs 16g are provided around the entire outer periphery of the water receiving portion 16c to prevent water from overflowing.

As shown in FIG.
8, a brake device 2o that stops the rotation of the basket 7, and a damping mechanism 21 that decelerates the rotation of the motor 17 and transmits it to the pulsator 9.

The motor 17 and clutch mechanism 18 are arranged in the front-rear direction when viewed from the front.

As shown in FIG. 3, a plurality of attachment bosses 6a are provided at two locations on the outer periphery of the circular outer tank 6 at the rear, and the rotating beam 5 is fixed thereto.

A half-moon-shaped recess 5a is provided in the center of the rotating beam 5, as shown in FIG. 6, and a stepped shaft 22 is fitted into the recess 5a and fixed thereto by welding or the like. The stepped shaft 22 includes a stopper portion 22a, a shaft portion 22b, a fixing ring portion 22c, and a fitting portion 22d.

A U-shaped bearing 23 is fitted into the shaft portion 22b of the stepped shaft 22. This bearing 23 has a groove 23a on its outer periphery and screw holes 23b at two locations at the U-shaped tip.

A U-shaped recess 4a provided at the center of the rotating base 4 is fitted into the groove 23a, and an elastic plate spring 24 is tightened and fixed to the upper part with a screw 25.

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

26 is a crank, and metal 27 is press-fitted into both ends of the crank. A crankshaft 28 is rotatably fitted into the metal 27.

The crankshaft 28 has a fixing step 28a at one end.

It has a shaft portion 28b at the center and a screw hole 28c at the other end.

The step portion 28a is formed integrally with the rotating beam 5,
It is inserted into the bent portion 5b and the protruding portion 5d having the hole 5c and fixed by welding.

This crankshaft portion 28 is attached to the shaft portion 28b of the crankshaft 28 fixed as described above with a thrust rod 29° metal 27.
A crank 26 is rotatably tightened with a screw 32 via a thrust rod 30 and a washer 31.

Reference numeral 33 denotes a motor base fixed to the rotation base 4 with screws 34, and a rotation motor 35 is fixed to the lower end with screws 36.

The rotary motor 35 is provided with an output shaft 35a, and a boss 36 and an arm 37 provided integrally are fixed with a screw 38 and a lock nut 39.

The arm 37 consists of a portion fixed to the boss 36 and a crankshaft portion, and is provided with a hole and a bent portion (not shown) like the protruding portion 5d of the rotating beam 5 described above.

A switch lever 41 is fixed to the stepped shaft 22 with a screw or the like, and is provided to be engaged with microswitches 42 and 43 fixed to the rotating base 4.

44 is a duct for circulating hot air during the drying process, and as shown in FIG. 6, one end is airtightly connected to the exhaust port 6b provided at the lower left end of the outer tank 6, and the other end is airtightly connected to the suction port 45a of the blower 45. do.

The center inner diameter part 44a of the duct 44 is made higher than the upper end part of the overflow prevention water inlet 6c integrally provided in the outer tank 6 by the H dimension, so that it can be used for washing the live parts such as the drive motor of the blower 45. The structure shall be such that water, etc. does not flow back.

The hose portion 6d of the overflow port 6c is connected to the hose 46 of the drainage device 11, and overflow water is discharged via the drainage hose 15.

Further, as shown in FIG. 2, a nozzle 48 for injecting water 47 is provided between the connection part of the duct 44 with the drain port 6b and the central inner diameter part 44a, and the water 47 is injected into the duct 44 in late autumn.

49 is a water supply hose connected to an external water supply via a water supply valve 79 or the like.

Reference numeral 50 denotes a PTC heater that supplies hot air during the drying process, and is sealed in a base 51 and a case 52.

The case 52 is provided with a connection port 52a to the discharge port 45b of the blower 45, and further provided with a hot air ventilation space 52b above the PTC heater 50.

The base 51 has a hot air outlet 51 to the basket 7.
a is provided in the center, and the outer peripheral part 51b is the tank cover 10.
A plurality of bosses 51c are provided on the bottom of the tank cover 1.
0 with screws 53.

54 is a top cover with a lid 55 in the center and a water supply valve 5 at the rear.
6 and a softener dispenser 57 are provided.

A water inlet 57a is provided at the lower part of the softener dispenser 57, and the water supply valve 5 is connected to a water receiver 58 provided on the base 51.
Pour in the water from step 6.

The water receiver 58 is formed in an L-shape and is configured to inject water into the inner lid 59.

The inner lid 59 has a shaft 59a that serves as a fulcrum when opening and closing.

It is composed of a back cover 59c having a plurality of drain holes 59b and a handle portion 59d, and is fitted into the base 60 in a watertight manner.

The base 60 is fixed to the tank cover 10 with screws 61.

Figure 9 shows the principle wiring diagram of this washer/dryer (washing machine/dryer).6 The circuits can be roughly divided into input-related circuits, output-related circuits, load-related circuits (including actuators), and other circuits. ing.

As an input related circuit, the basket 7 rotates at high speed when the lid 55 is opened/closed and when dehydrating, and due to unbalance of the clothes,
The outer tank 6 vibrates, and depending on the magnitude of the vibration, 0N-OFF
safety switch 62. Water level sensing circuit 63.50/60 that detects the water level supplied to the outer tub 6 during washing
Hz signal circuit 6 sending a Hz signal to the microcomputer 64
5. Input inch reading circuit 66, door switch reading circuit 67, current sensing circuit 68. Cloth amount sensing circuit 69. Temperature sensor 70. There are input switch circuits such as a humidity sensor 71, a humidity sensing circuit 72, etc. 6. Also, as output related circuits, there is a 6-phase lock circuit 73 that amplifies the signal from the microcomputer 64. Progress and clock display circuit 74. Drive circuit 75 including an amplifier circuit and a switching circuit to drive a load group; buzzer 76; oscillation circuit 77
There are output circuits such as

Next, as a load-related circuit, the washing motor 17. Water supply valve 78
,79. Detergent input Mg80. A valve state detection switch 83 that is interlocked with the softner Mg81 and the drainage motor 82. Wash→
After the so-called washing process of rinsing and dehydration is completed, a motor lock Mg 85 that locks the rotation motor 84 that rotates the outer tub 6 and the rotation motor 35 in an inclined state. Position sensor 86° clutch Mg that detects the rotational position of the outer tank 6 using microswitches 42 and 43 87. Drying motor 88. PTC heater 5
Heater (1) consisting of 089. A load circuit is formed from the heater (2) 90 and the like.

Furthermore, as other circuits, there is a clock generation circuit 91 that generates a basic clock for the microcomputer 64. A reset circuit 99 for bringing the microcomputer 64 into the initial state when the power switch 92 is turned on. A runaway detection circuit 95 that automatically turns off the power switch 92 with the auto-off switch 94 when the microcomputer 64 goes out of control; switch 92
It also has a function to turn off.

Reference numeral 96 is 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.

It also includes a power supply circuit 97 that supplies power to other parts.

In terms of hardware, the above circuit consists of a membrane board 98 that has a display and an operation panel. Main board 9 with electronic white part
9, a load, an actuator 100, and the like.

An example of the operation cycle table of this washer/dryer is shown in Fig. 10. The operating processes include a washing process 101 and a drying process 102, and the operating cycles can be roughly divided into a full wash/dry cycle (
It is divided into fully automatic cycle) and manual cycle.

The entire washing and drying cycle (hereinafter referred to as the washing and drying cycle) (from the washing process to the drying process) is carried out completely automatically, and the washing process is 103% thick and has a standard IQ of 4.
．． Oisogi 105. Wool 106 and careful drying process 1
07. Standard 108° Finish 109. It consists of an iron 110, 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.

111 is the power button, wash/dry button 112. Wash button 113. Drying button 114. The start and stop buttons 115 and the display LED indicate the amount of cloth check 116. 4 LEDs 117 for wash cycle, 4 LEDs for dry cycle
4 D118s, remaining time display and reservation timer display 11
9 is provided on the surface of the operation panel. There is also a time setting button 120 inside the cover (not shown). Rinse button 121
゜Preset button 122. Reservation timer button 123゜Drain button 124. The configuration is such that

The present invention has the configuration as described above.

The operation will be explained in detail below based on the drawings.

First, to explain the conceptual basic operation, the washing process 101 of washing → rinsing → dehydration in the washing and drying process is performed with the outer tub 6 in a vertical state, that is, in the state shown in FIG. The drying step 102 is carried out in the slanted state shown in FIG. 8, and after the drying step 102 is rotated to return to the state shown in FIG. 7, one cycle from washing to drying is completed.

To further describe the above basic operation in detail, first, the lid 55 and the inner lid 59 are opened, and the clothes are put into the basket 7. After the charging is completed, the inner lid 59 and the lid 55 are respectively closed.

When the wash/dry button 112 on the operation panel is pressed and the start button 115 is pressed, the washing cycle starts with the standard 104 and the drying cycle with the standard 108.The washing process 101 and the drying process 102 are performed, and the washing/drying cycle starts. Once finished, the clothes are washed, dried and can be taken out.

At this time, washing → rinsing → dewatering are performed with the outer tub 6 in a vertical position as described above, and just before moving on to the drying step 102, the rotation motor 35 is energized and the outer tub 6 is tilted by θ using the link mechanism. make it move. That is, as shown in FIG.
When the arm 37 rotates, the arm 37 integrally fixed to the output shaft 35a rotates in the P direction in FIG. 7 and pulls the crank 26 in the Q direction. Thereby, the outer tank 6 rotates in the R direction about the stepped shaft 22 fixed to the rotation beam 5. The rotation motor 35 is stopped by the position sensor 86, and the motor lock M
g85, the rotation motor 35 is locked and the drying step 102 is performed.

In this drying process 102, the basket 7 is rotated at a low speed by the drying motor 88, and the angle θ is inclined at approximately 756, so that the clothes in the basket 7 are lifted in the direction of rotation and near the top of the basket 7. At the same time as falling naturally,
The basket 7 falls further back than the initially lifted position, which improves the mixing, i.e., changing, of the clothes.
By evenly blowing warm air onto the clothes, uneven drying of the clothes will not occur. This also means that efficient drying is possible.

Next, to explain the operation of other washing and drying cycles, for example,
To perform a washing cycle other than standard 104, first press the wash/dry button 112, then press the wash button 113 to select the desired washing cycle and press the start button 115.The washing cycle will be the desired cycle and the drying cycle will be 41/1.
08 washing and drying cycles can be performed.

In addition, if only the drying cycle is changed or both the washing cycle and the drying cycle are changed, the same procedure as described above is followed, and the desired washing/drying cycle can be executed.

Also, for other single cycles, such as washing cycle only, drying cycle only, etc., press only the desired button.

By pressing the start button 115, the desired cycle can be executed.

〔Effect of the invention〕

According to the present invention, as a basic configuration, the motor base 332
Rotating motor 35. Arm 37. Since it is composed of a crank 26 and a crankshaft 28, there is no noise of meshing gears or vibration noise caused by gear backlash during vibration, unlike in the past, and since no sliding parts are exposed, the operating surface is free from corrosion. We can propose an extremely simple, highly reliable, highly productive, and low-cost tilting/rotating mechanism.

Further, since the crank 26 is made into a plate shape, the entire one-turn mechanism can be made thinner, making the entire product more compact, which has the effect of increasing the product price.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention. Figure 1 is a longitudinal sectional view of the washer/dryer seen from the front, Figure 2 is a longitudinal sectional view of the machine seen from the side, Figure 3 is a plan view of the machine with the top cover removed, and Figure 4. is a bottom view of the aircraft seen from the bottom. Fig. 5 is an enlarged sectional view of the link mechanism, Fig. 6 is an enlarged sectional view of the upper side of the machine, and Fig. 7 is a state diagram of the machine during washing and dehydration operation. Figure 8 is a state diagram of the machine during drying operation, Figure 9 is a circuit diagram,
FIG. 10 is a diagram showing the operation cycle, and FIG. 11 is a diagram showing the operation panel. 1... Outer frame, 2... Hanging rod, 3... Anti-vibration spring, 4...
... Rotating base, 6... Outer tank, 7... Basket,
9...Balsee Unzu No. 3 5 Early 1 Concave

Claims (1)

[Claims] 1. A washing machine consisting of an outer frame, a top cover and a base provided at the top and bottom of the outer frame, an outer tank rotatably provided inside the outer frame, a basket provided inside the outer tank, etc. A link rotation type washer and dryer, characterized in that the dryer is equipped with a rotation motor, an arm, a crank, and a crankshaft such that both ends of the crank are rotatable. 2. An arm is provided on the output shaft of the rotation motor, a crankshaft is provided at the other end of the arm, and another crankshaft is provided integrally with the outer tank, and both crankshafts are rotated by cranks having metal at both ends. The washer and dryer according to claim 1, characterized in that the two parts are freely connected. 3. The washing and drying machine according to claim 1 or 2, wherein the crank is a U-shaped plate.