JPH04240489A - Drum type washing and drying machine - Google Patents

Abstract

PURPOSE:To provide a drum type washing and drying machine which can reduce vibrations at a time of dehydration start. CONSTITUTION:A drum type washing and drying machine has a body 21, a water tank 20 provided in the body 21, a drum 26 revolving within the water tank 20 on its horizontal axis, a washing motor 34 driving the drum 26, a drying heater 40 and a fluid balancer 29 provided at a side end part of the drum 26. The fluid balancer 29 has a partition 28 which divides inside of the fluid balancer 29 into several chambers in the circumferential direction and is inclined at a prescribed angle and orientated toward a center, and a water passage 30 which is provided on an outer periphery of the partition 28 to communicate with the respective chambers. Further, the rotation direction of the drum 26 at a time of dehydration start is orientated in an inclining direction of the partition 28.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is a drum-type method in which clothes are washed and rinsed by rolling the clothes by the rotation of the drum, dehydrated by the centrifugal force generated by the high-speed rotation of the drum, and further dried by a heater. This relates to washing and drying machines.

0002

[Prior art] Conventional drum-type washer/dryers are shown in Figs. 4 and 5.
The configuration was as shown in . Reference numeral 1 denotes a main body, and the main body 1 includes a water tank 3 supported by a damper 2, a drum 6 with an open front, a rotating shaft 4 on the rear, and a water passage hole 5 on the side, and a washing motor 8. ing. The rotating shaft 4 is supported by a bearing 7 provided on the rear surface of the water tank 3. Also, at the end of the rotating shaft 4, a washing motor 8 and a belt 9 are provided.
A pulley 10 that is interlocked with each other is attached. Further, 11 is a drying heater located between the water tank 3 and the drum 6. Furthermore, a fluid balancer 12 is attached to the entire circumference of the side end surface of the drum 6. Inside this fluid balancer 12, there is a salt water 19, a partition body 14 directed toward the center that divides the interior into several small rooms 13, and a water flow communicating with each small room 13 provided on the outer periphery of this partition body 14. 15. A bellows 16 is provided on the front surface of the water tank 3 to maintain watertightness between the water tank 3 and the main body 1, and is fitted with a tapered lid 17. 18 is a weight body attached to the water tank 3.

0003

SUMMARY OF THE INVENTION The conventional drum type washing machine described above operates as follows. In other words, washing/
When the rinsing process is completed and the dewatering process begins, the salt water 19 in the clothes and fluid balancer 12 is biased toward the bottom of the drum 6 due to gravity, as shown in FIG. In this state, the drum 6 is rotated and the dewatering process begins. In this case, at the start of dehydration, that is, the rotation speed of the drum 6 is 12
During low speed rotation (below the primary resonance point) of 0 to 300 r/min, the salt water 19 within the fluid balancer 12 tends to be biased in the same direction as the eccentric load 20. For this reason, the drum 6 vibrates greatly at the start of dewatering. This vibration of the drum 1 causes vibrations and noise of the main body 1. Further, during the drying process, the continuous falling sound of the salt water 19 in the fluid balancer 12 is generated, causing noise.

[0004] Therefore, the present invention is an attempt to solve such conventional problems, and its primary purpose is to provide a drum-type washer/dryer that can reduce vibrations when starting dehydration. . In addition to the first object, a second object is to provide a drum-type washer/dryer that reduces the sound of fluid falling within a fluid balancer that occurs during the drying process.

[0005]

[Means for Solving the Problems] The first means of the present invention to achieve the first object includes a main body, a water tank provided in the main body, and a drum rotating around a horizontal axis within the water tank. , has a washing motor that drives the drum, a drying heater, and a fluid balancer provided on the side end surface of the drum, and the fluid balancer has a washing motor that drives the drum, a heater for drying, and a fluid balancer provided on a side end surface of the drum, and the fluid balancer has a plurality of fluids and a plurality of parts arranged inside the fluid balancer in a circumferential direction. It is divided into small rooms, and has a partition body that is tilted at a certain angle and goes toward the center, and a water flow part that is provided on the outer periphery of this partition body and communicates with each room. The drum type washer/dryer is such that the partition body is inclined in the direction of inclination.

A second means of the present invention for achieving the second object includes a main body, a water tank provided in the main body, a drum that rotates around a horizontal axis within the water tank, and a system that drives the drum. a washing motor for drying, a heater for drying, and a fluid balancer provided on the side end surface of the drum, and the fluid balancer divides the fluid and the inside of the fluid balancer into several small chambers in the circumferential direction. , has a partition body that is inclined at a certain angle and goes toward the center, and a water passage part that is provided on the outer periphery of this partition body and communicates with each room, and the direction of rotation of the drum during drying is controlled by the inclination of the partition body. This is a drum-type washer/dryer with the direction opposite to that of the washing machine.

[0007]

[Operation] The first means of the present invention operates as follows. The partition provided in the fluid balancer has a shape inclined at a constant angle in the circumferential direction, and the direction of rotation of the drum at the start of dewatering is the direction of inclination of the partition. Therefore, when the drum rotates for dewatering, this partition body acts to pump up the fluid accumulated in the lower part of the fluid balancer. In other words, the fluid can be appropriately distributed in each small chamber forming the fluid balancer. Even if the fluid is turned upside down, the fluid will not spill out because it is activated with an acceleration greater than the gravitational acceleration g. Next, when the rotation speed exceeds the primary resonance point and the centrifugal force increases,
The pumped up fluid spreads in the outer circumferential direction due to this centrifugal force, passes through a water passage provided in the outer circumferential direction of the partition body, and gathers on the side opposite to the eccentric load, thereby acting as a corrective centrifugal force.

According to the second means of the present invention, the partition body is configured to be inclined at a constant angle in the circumferential direction in the fluid balancer, and the rotation direction of the drum during the drying process is controlled by the partition body. By setting the inclination direction in the opposite direction, the fluid accumulated in the lower part of the fluid balancer when the fluid balancer is stopped passes through the water passage part in the lowest part of the small room formed by the partition body when the fluid balancer is rotated, and the fluid accumulates in the lower part of the fluid balancer when the fluid balancer is rotated. It remains in the lower part. This makes it possible to reduce the sound of fluid falling within the fluid balancer during the drying process.

[0009]

[Example] The following is an example of the first means of the present invention as shown in FIG.
This will be explained based on FIG. 2. 20 is an aquarium suspended semi-restrictively from the main body 21 by a plurality of suspensions 22. Inside the aquarium 20, there is a rotating shaft 2 that serves as a horizontal axis.
A drum 26 is provided which is pivotally supported by a drum 3 and has a water passage hole 24 and a protrusion 25 as appropriate. A ring-shaped fluid balancer 29 is fixed to the entire circumference of the side end portion of the drum 26. The fluid balancer 29 has a fluid 4 made of salt water or the like.
9, an inclined partition body 28 that divides the interior into several small rooms 27 in the circumferential direction, and a water passage portion 30 provided on the outer periphery of the partition body 28. Each of the small rooms 27 is communicated with each other through this water passage portion 30 . Further, a drum pulley 32 is attached to one end of the rotating shaft 23 via a bearing 31 provided in the water tank 20. 33 is a belt that interlocks the drum pulley 32 and a motor pulley 36 attached to the shaft 35 of the washing motor 34. 37
is a fan unit attached to the water tank 20, and the sucked outside air is discharged from the discharge port 41 via the suction port 38, the heat exchanger 39, and the drying heater 40. 42
is a drainage pump attached to the bottom of the water tank 20. 43 is an inner lid provided on the drum 26, and 44 is a bellows fixed to the water tank 20 at one end and the main body 21 at the other end. 46 is a water supply valve, which communicates with the inside of the water tank 20 via a water supply hose 47. The operation of this embodiment will be explained below. The clothes in the drum 26 are washed by rolling through the wash water previously stored in the water tank 20 by the rotation of the drum 26. A rinsing step is then carried out in the same manner. At the end of the washing/rinsing process, the clothes are biased towards the bottom of the drum 26. The dehydration process starts in this state, but generally when the rotation speed is low at the start of dehydration (12
(low speed rotation of 0 to 300 r/min, stage below the primary resonance point) The fluid 49 in the fluid balancer 29 tends to be biased in the same direction as the eccentric load.

Therefore, in this embodiment, as shown in FIG. 2, the shape of the partition body 28 in the fluid balancer 29 is inclined at a constant angle in the circumferential direction, and the direction of rotation at the time of starting dehydration is determined by the shape of the partition body 28 in the fluid balancer 29. The direction of inclination of the body 28 is made to match. Therefore, when the dewatering process is started, the partition body 28 acts to pump up the fluid 49 in the fluid balancer 29. As a result, the fluid 49 is appropriately dispersed and distributed within the fluid balancer 29. In this way, the distribution of the fluid 49 within the fluid balancer 29 becomes appropriate, thereby eliminating large swings of the water tank 20 during dewatering. In this case, even while the fluid 49 is in the opposite position as shown in FIG. 3, the fluid 49 does not spill because it is activated with an acceleration a greater than the gravitational acceleration g. Furthermore, when the rotation speed exceeds the primary resonance point and the centrifugal force increases, the pumped fluid 49 spreads in the outer circumferential direction due to this centrifugal force, passes through the water flow part 30 provided in the outer circumferential direction of the partition body 28, and opposes the eccentric load. It gathers on the side and acts as a corrective centrifugal force. This suppresses large dehydration vibrations. When the dewatering process is completed in this way, the drum 2
At step 6, the rotation speed is changed to low speed and the drying process begins.

As described above, according to this embodiment, the partition body 28 is configured to be inclined at a certain angle in the fluid balancer 29, and the direction of rotation of the drum 26 at the start of dewatering is determined by the direction of the inclination of the partition body 28. By matching this, it is possible to suppress the large primary vibration that was a problem when starting dehydration. Furthermore, since there is no need to use the conventional heavy body, the main body can be made lightweight. Furthermore, the damper used does not require as strong a damping force as the conventional one, and the vibration isolation structure can be simplified. Next, an embodiment of the second means of the present invention will be described based on FIG. 3. The configuration of this embodiment is the same as the embodiment of the first means, and the rotation direction of the drum in the drying process is controlled by the partition body 28.
It is set in the opposite direction to the direction of inclination.

The operation of this embodiment will be explained below. This embodiment has a feature in the drying process after the washing, rinsing, and dehydrating processes are completed. When the drying process begins, the drum 26 rotates at a low speed (50 Hz to 60 Hz). The direction of rotation during this drying step is set to be opposite to the direction of inclination of the partition body 28. Therefore, the fluid 49 accumulated in the lower part of the fluid balancer 29 when the fluid balancer 29 is stopped flows through the water passage part 30 at the lowest part of the small chamber 27 formed by the partition body 28 when the fluid balancer 29 rotates, as shown in FIG. It passes through and remains in the lower part of the fluid balancer 29. This makes it possible to reduce the sound of the fluid 49 falling within the fluid balancer 29 during the drying process.

As described above, according to this embodiment, the partition body 28 is configured to be inclined at a certain angle in the fluid balancer 29, and the direction of rotation of the drum 26 during the drying process is determined by the direction of the inclination of the partition body 28. By setting the direction in the opposite direction, the fluid 49 accumulated at the lower part of the fluid balancer 29 when the fluid balancer 29 is stopped passes through the water passage part 30 at the lowest part of the small chamber 27 formed by the partition body 28 when the fluid balancer 29 rotates. , remains in the lower part of the fluid balancer 29. This makes it possible to reduce the sound of fluid falling within the fluid balancer 29 during the drying process.

[0014]

As described above, according to the first means of the present invention, the fluid balancer provided at the side end of the drum can separate the fluid and the inside of the fluid balancer into several small chambers in the circumferential direction. It has a partition body that is divided and tilted at a certain angle and goes toward the center, and a water passage provided on the outer periphery of this partition body, and the rotation direction of the drum at the time of starting dehydration is the direction of inclination of the partition body. By using a drum-type washer-dryer, it is possible to obtain a drum-type washer-dryer that can reduce vibrations when starting dehydration.

The second means of the present invention is that the fluid balancer provided at the side end of the drum divides the fluid and the inside of the fluid balancer into several small chambers, which are inclined at a constant angle in the circumferential direction. A drum having a partition body facing toward the center of the partition plate, and a water passage part provided on the outer periphery of the partition plate and communicating with each chamber, the rotation direction of the drum during drying being opposite to the direction of inclination of the partition body. By using a drum-type washer-dryer, it is possible to reduce the sound of the fluid falling in the fluid balancer, thereby making it possible to create a drum-type washer-dryer with reduced noise.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a drum-type washer/dryer in an embodiment of the first means of the present invention.

[Figure 2] Cross-sectional view explaining the operation of the fluid balancer during the same dehydration process

FIG. 3 is a sectional view of a fluid balancer during the drying process of a drum type washer/dryer which is an embodiment of the second means of the present invention.

[Figure 4
】Longitudinal cross-sectional view of a conventional drum type washer/dryer

[Fig. 5] A cross-sectional view illustrating the operation of the fluid balancer when starting dehydration in a conventional drum-type washer/dryer.

[Explanation of symbols]

20　Aquarium 21 Main body 26 Drum 28 Partition body 29 Fluid balancer 30 Water flow section 34 Washing motor

Claims (2)

[Claims] Claim 1: A main body, a water tank provided in the main body, a drum that rotates around a horizontal axis within the water tank, a washing motor that drives the drum, a drying heater, and a side end surface of the drum. The fluid balancer includes a fluid, a partition body that divides the inside of the fluid balancer into several small chambers in the circumferential direction and is inclined at a certain angle toward the center; A drum-type washer/dryer, which has a water passage section provided on the outer periphery of a partition body and communicates with each room, and in which the direction of rotation of the drum at the time of startup of dehydration is the direction of inclination of the partition body. 2. A main body, a water tank provided in the main body, a drum rotating around a horizontal axis within the water tank, a washing motor for driving the drum, a drying heater, and a side end surface of the drum. The fluid balancer includes a fluid, a partition body that divides the inside of the fluid balancer into several small chambers in the circumferential direction and is inclined at a certain angle toward the center; A drum-type washer/dryer, which has a water passage section provided on the outer periphery of a partition body and communicates with each room, and in which the direction of rotation of the drum during drying is opposite to the direction of inclination of the partition body.