JPH10211382A - Drum type washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify constitution of a fitting member for fitting a body side end part of a packing member, to improve assembling workability and servicability and to adjust fitting force between the packing member and the inner face of a window in a drum type washing machine in which the washings are washed, rinsed and dehydrated in a drum arranged freely rotatably around a rotating shaft being approximately in the horizontal direction as a center. SOLUTION: A rotating drum 1 with a rotating shaft approximately in the horizontal direction is enveloped by an outer tank 3 and a rocking body wherein the outer tank 3 is stored in a body 8 so as to be rocked and the rotating drum 1 is rotated by the first motor and the second motor when washing and dehydration is performed. An opening part 14 of the outer tank 3 corresponding to the front face opening part 13 of a rotating drum 1 and the front face opening part 15 of the body are connected with an approximately cylindrical paking member 32 and the body side end part 33 of the packing member 32 is pinched by an approximately annular fitting member 34 and the inner face part on the peripheral edge of the front face opening part 15 of the body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine for washing, rinsing, and dewatering laundry in a drum rotatably disposed about a substantially horizontal rotation axis.

[0002]

2. Description of the Related Art Conventionally, a drum type washing machine of this type has been constructed as shown in FIGS. Hereinafter, the configuration will be described.

[0003] As shown in FIG. 4, a rotary drum 1 has a large number of water passage holes 2 provided on the entire outer peripheral portion thereof and is rotatably disposed in an outer tank 3. One end of the rotating shaft 4 is fixed to the rotation center of the rotating drum 1 in a substantially horizontal direction, and a drum pulley 5 is fixed to the other end of the rotating shaft 4. The drive motor 6 is connected to the drum pulley 5 by a belt 7 and drives the drum 1 to rotate.

The outer tub 3 is swingably suspended from the body 8 by a spring body 9, the vibration at the time of dehydration start is reduced by the vibration damper 10, and the vibration during the steady dehydration is prevented from being transmitted to the body 8. A weight 11 is provided to support vibration and reduce vibration during dehydration. Substantially cylindrical packing member 1
2 is an outer tub 3 corresponding to the front opening 13 of the rotary drum 1
The opening 14 and the body front opening 15 are connected to each other. A window 16 is provided in the body front opening 15 so as to be openable and closable.

The heater 17 heats the washing water in the outer tub 3. The control device 18 controls operations of the drive motor 6, the heater 17, and the like, and sequentially controls a series of processes such as washing, rinsing, and dehydration.

As shown in FIG. 5, the packing member 12 has a body side end 19a at an end 8a where the body 8 is bent.
Are fitted to the body 8 by a spring-shaped band 20, the outer tub side end 21 is fitted to the bent end face 3 a of the outer tub 3, and is fixed to the outer tub 3 by a band 22. The packing member 12 has substantially the same thickness, and its length direction is partially turned backward and inward to form a substantially annular bulging portion 23.

The operation of the above configuration will be described.
6, the laundry is put into the rotating drum 1 and the operation is started. In the washing process, the rotating drum 1 is driven by the driving motor 6
As a result, the laundry in the rotating drum 1 is lifted and dropped on the water surface at a first rotation speed N1 (about 53 rpm). Thus, the washing process proceeds. The same operation as the washing process is performed in the rinsing process.

In the dehydration step, the rotating drum 1 is driven to rotate at a second rotation speed N2 (about 1000 rpm), and the laundry is centrifugally dehydrated. At this time, when the laundry in the rotating drum 1 is shifted, that is, imbalance occurs, the swinging members such as the rotating drum 1 and the outer tub 3 vibrate (swing). Damping the vibration of the oscillator,
During steady dehydration, the vibration is not transmitted to the body 8 by the vibration isolating mechanism of the vibration isolating damper 10. In addition, the opening 14 of the outer tank 3
And the front opening 15 of the body 8 are connected by a substantially cylindrical packing member 12, but the substantially cylindrical packing member 12 bends due to the swing of the rocking body, so that the substantially cylindrical packing member 12 is bent. Vibration is not transmitted to the body 8 through 12.

[0009]

In such a conventional structure, the packing member 12 has a body-side end 19 fitted to the bent end 8a of the body 8, and the spring-like band 2
0, the packing member 12 is attached and detached when the packing member 12 is attached and detached.
0 is extended, the assembly workability and serviceability are poor, and the mounting position of the packing member 12 cannot be adjusted. Therefore, the fitting force between the packing member 12 and the inner surface of the window 16 can be adjusted. When the fitting force is weak, water leaks from the gap between the inner surface of the window 16 and the packing member 12, and when the fitting force is strong, the window 1
6 had a problem that the opening and closing of 6 became difficult.

The rotation of the rotating drum 1 causes the laundry in the rotating drum 1 to move forward and backward at the same time as rotating, and to rotate while contacting the packing member 12. At this time, since the laundry hits the folded portion 24 of the packing member 12, the packing member 12 may be worn and torn, causing water leakage, and water accumulated in the bulging portion 23 during operation may jump up and rotate. There was a problem that the laundry in the drum 1 was wet.

The folded portion 2 of the packing member 12
4 has a problem that the contact area is large when the rib 25 is provided at a position facing the folded portion 24, and a loud impact sound is generated when the folded portion 24 hits the rib 25 during operation. I was

The present invention solves the above-mentioned conventional problems, and simplifies the structure of a mounting member for mounting the body-side end of the packing member, thereby improving assembling workability and serviceability. It is intended to be able to adjust the fitting force with the inner surface.

[0013]

According to the present invention, in order to achieve the above object, a rotating drum having a rotating shaft in a substantially horizontal direction is wrapped around an outer tub, and a rocking body mainly composed of the outer tub is swingable. The rotating drum is housed in the body and rotated by a drive motor during washing and spin-drying. The opening of the outer tank corresponding to the front opening of the rotating drum and the front opening of the body are connected by a substantially cylindrical packing member, and the body side end of the packing member is connected to the substantially annular mounting member and the front opening of the body. It is sandwiched between the inner peripheral portion of the peripheral edge.

Thus, the structure of the mounting member for mounting the body side end of the packing member can be simplified, and the body side end of the packing member is sandwiched between the mounting member and the inner surface of the periphery of the body front opening. , It is possible to improve assembly workability and serviceability.
By adjusting the pressing allowance between the packing member and the packing member by the opening end of the mounting member, the fitting force between the packing member and the inner surface of the window can be adjusted, and water flows from the gap between the inner surface of the window and the packing member. Leakage can be prevented, and the opening and closing force of the window can be adjusted.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention provides a rotating drum having a rotating shaft in a substantially horizontal direction, an outer tub enclosing the rotating drum, and the rotating drum during washing and spin-drying. A drive motor for rotating, a body for swingably containing a rocking body mainly composed of the outer tub, and a connection between an opening of the outer tub corresponding to a front opening of the rotary drum and a front opening of the body. A substantially cylindrical packing member, wherein the body-side end of the packing member is sandwiched between a substantially annular mounting member and the inner surface of the periphery of the body front opening, and the body-side end of the packing member is provided. By making the mounting member to be clamped substantially annular, the configuration of the mounting member can be simplified, the mounting member is fitted into the packing member, and the mounting member and the inner surface of the periphery of the body front opening are packed together. Since only the body side end of the packing member needs to be clamped, assembly workability and serviceability can be improved, and by adjusting the holding allowance with the packing member by the opening end of the mounting member, the packing member and the packing member can be improved. The fitting force to the inner surface of the window can be adjusted, and water can be prevented from leaking from the gap between the inner surface of the window and the packing member.

According to a second aspect of the present invention, in the first aspect of the present invention, the substantially annular mounting member and the periphery of the front opening of the body are fixed by screwing from the front side of the body. The packing member can be mounted by screwing the substantially annular mounting member from the front surface of the device, and assembling workability and serviceability can be improved.

According to a third aspect of the present invention, there is provided a rotary drum having a rotary shaft in a substantially horizontal direction, an outer tub enclosing the rotary drum, a drive motor for rotating the rotary drum during washing and spin-drying, and A body accommodating a rocking body mainly composed of an outer tub, and a substantially cylindrical packing member connected between a front opening of the rotary drum and a front opening of the body; Is formed by partially folding the length direction backward and inward, and integrally forming a substantially annular barrier portion at the tip of the inwardly protruding portion, and washing the inside of the rotating drum by rotating the rotating drum. The object rotates and moves in the front-back direction, and rotates while contacting the packing member. At this time, since the laundry hits the substantially annular barrier portion of the packing member, the substantially annular barrier portion is slightly worn, but the packing member is not broken, and it is possible to prevent water leakage due to the tear of the packing member. Can be. Further, the substantially annular barrier portion can prevent the water accumulated in the bulging portion formed on the outer peripheral side from jumping up, and can prevent the laundry in the rotating drum from getting wet.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the substantially annular barrier portion has a thickness in a radial direction smaller than a height in a rotation axis direction. It is possible to reduce the contact area when the annular barrier portion contacts the rib provided at a position facing the barrier portion, and to reduce the impact noise generated when the barrier portion hits the rib during operation. In addition, the durability of the mold can be improved by securing the thickness of the mold.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 3, a first motor (drive motor) 26 rotates the rotary drum 1 at a first rotation speed N1 (for example, 53 rpm) for washing or rinsing. The second motor (drive motor) 27
The rotating drum 1 is moved to a second rotational speed N2 (for example, 1000
Spin at (rpm) to dehydrate. These first motors 2
The sixth and second motors 27 are constituted by induction motors, and are connected to driven pulleys 30 via belts 28 and 29, respectively.

The driven pulley 30 has two kinds of reduction ratios. The first motor 26 is connected via a belt 28 to a driven pulley 30a having a large reduction ratio.
7 is driven by a driven pulley 3 having a small reduction ratio via a belt 29.
0b, and is fixed to the other end of the rotating shaft 4 having one end fixed to the rotation center of the rotating drum 1. The control device 31 controls operations of the heater 17, the first motor 26, the second motor 27, and the like, and sequentially controls a series of steps such as washing, rinsing, and dehydration.

The packing member 32 is formed in a substantially cylindrical shape by rubber, and connects between the opening 14 of the outer tub 3 corresponding to the front opening 13 of the rotary drum 1 and the front opening 15 of the body. . As shown in FIGS. 1 and 2, a substantially annular attachment member 34 is attached to the body side end 33 of the packing member 32.
4 is fastened from the front side of the body 8 with screws 35 and nuts 36, and the body side end 33 of the packing member 32 is sandwiched between the substantially annular mounting member 34 and the inner peripheral surface of the body front opening 15. .

Since the mounting member 34 is substantially annular, the structure can be simplified. The mounting member 34 is fitted into the packing member 32, and the mounting member 34 and the inner peripheral surface of the body front opening 15 are used as a packing member. 32
, It is possible to improve assembly workability and serviceability.

The length of the packing member 32 is partially turned backward and inward to form a bulging portion 37, and a radial thickness A of the packing member 32 is provided at the tip of the inwardly protruding portion. A substantially annular barrier portion 38 having a larger height B is integrally formed, and a rib 39 is provided facing the substantially annular barrier portion 38.

The operation of the above configuration will be described.
6, the laundry is put into the rotating drum 1, the power switch (not shown) is turned on, and then the operation is started by operating a start switch (not shown) provided in the control device 31; The valve 40 operates to supply water, and when a predetermined water level is detected by water level detection means (not shown), the water supply is stopped,
The first motor 26 is driven. In the washing process, the rotating drum 1 is moved to the first position while replenishing water because the laundry contains water.
Is rotated at a first rotation speed N1 by the motor 26, and the laundry in the rotating drum 1 is lifted and dropped on the water surface.

At this time, the heater 17 is energized to heat the washing water in the outer tub 3 while controlling it at a substantially constant temperature. When the washing process is completed, the drain pump 41 operates and the outer tub 3
Drain the washing water inside. Thereafter, in the dewatering process via the rinsing process, the rotating drum 1 is driven to rotate at the second rotation speed N2, and the laundry is centrifugally dewatered.

When the rotating drum 1 is rotated at the first rotation speed N1 in the washing process or the rinsing process, the laundry in the rotating drum 1 is rotated by the rotation of the rotating drum 1 and moves in the front-rear direction. It rotates while touching 32. As a result, the laundry rotates while hitting or climbing over the rib 39 of the packing member 32, but the laundry hits the substantially annular barrier portion 38, so that the substantially annular barrier portion 38 is slightly worn, but the packing member 32 is worn. Can be prevented from being broken, and the occurrence of water leakage due to the breakage of the packing member 32 can be prevented.

When the rotating drum 1 is rotated at the second rotation speed N2 in the dehydrating process, if the laundry in the rotating drum 1 is in an unbalanced state, the rocking body mainly composed of the outer tub 3 is activated. The packing member 32 vibrates (oscillates), and the packing member 32 repeats expansion and contraction in a substantially horizontal direction due to expansion and contraction of the bulging portion 37 due to the vibration. At this time, the water accumulated in the bulging portion 37 tends to jump up, but the substantially annular barrier portion 38 can prevent the water from jumping up, and the jumping water wets the laundry in the rotating drum 1. Can be prevented.

Since the substantially annular barrier portion 38 has a thickness A in the radial direction smaller than the height B, the packing member 32 repeats expansion and contraction in a substantially horizontal direction due to expansion and contraction of the bulging portion 37. This can reduce abnormal noise such as impact noise generated when the barrier portion 38 hits the rib 39.

As described above, according to the present embodiment, the mounting member 34 for sandwiching the body side end 33 of the substantially cylindrical packing member 32 with the peripheral inner surface of the body front opening 15 is formed in a substantially annular shape. The structure of the mounting member 34 can be simplified, and the mounting member 34 is
The mounting member 34 and the body front opening 15
It is only necessary to sandwich the packing member 32 with the inner peripheral portion of the peripheral portion, so that assembly workability and serviceability can be improved.

The opening end 34a of the mounting member 34
By adjusting the pressing allowance with the packing member 32, the fitting force between the packing member 32 and the inner surface of the window 16 can be adjusted, so that water flows from the gap between the inner surface of the window 16 and the packing member 32. Leakage can be prevented, and the opening / closing force of the window 16 can be adjusted. In addition, since the substantially annular attachment member 34 and the peripheral edge of the body front opening 15 are fastened and fixed from the front side of the body 8 with the screw 35, assembly workability and serviceability can be improved.

In this embodiment, the screw 35 and the nut 36 are used for fastening the substantially annular mounting member 34. However, instead of the nut 36, a burring is provided on the mounting member 34, and a thread is formed there. The same operation and effect can be obtained even when the shape is performed.

[0033]

As described above, according to the first aspect of the present invention, a rotating drum having a rotating shaft in a substantially horizontal direction, an outer tub that encloses the rotating drum, A drive motor for rotating the rotary drum, a body for oscillatingly accommodating a rocking body mainly composed of the outer tub, an opening of the outer tub corresponding to a front opening of the rotary drum, and a body front opening. And a substantially cylindrical packing member connected between them, and the body side end of the packing member is sandwiched between the substantially annular mounting member and the inner surface of the periphery of the body front opening. By making the mounting member that holds the portion substantially annular, the configuration of the mounting member can be simplified, the mounting member is fitted into the packing member, and the inner surface portion of the mounting member and the periphery of the body front opening. Since it is only necessary to clamp the packing member in the mounting member, assembling workability and serviceability can be improved. In addition, by adjusting the pressing margin with the packing member by the opening end of the mounting member, the packing member and the window can be formed. The fitting force with the inner surface can be adjusted, water can be prevented from leaking from the gap between the inner surface of the window and the packing member, and the opening and closing force of the window can be adjusted.

According to the second aspect of the present invention, since the substantially annular mounting member and the periphery of the body front opening are fixed by screws from the front side of the body, the substantially annular mounting member is fixed to the substantially annular mounting member from the front side of the body. The packing member can be attached by screwing, and assembling workability and serviceability can be improved.

According to the third aspect of the present invention, a rotating drum having a rotating shaft in a substantially horizontal direction, an outer tub enclosing the rotating drum, and a drive for rotating the rotating drum during washing and spin-drying A motor, a body accommodating a rocking body mainly composed of the outer tub, and a substantially cylindrical packing member connected between a front opening of the rotary drum and a front opening of the body. The packing member partially folds its length direction backward and inward,
At the tip of the inwardly projecting portion, a substantially annular barrier portion having a height dimension larger than the thickness dimension of the packing member is integrally formed, so that the rotation of the rotating drum rotates the laundry in the rotating drum and the front-back direction. Even if it moves to, the laundry hits the substantially annular barrier of the packing member,
Although the substantially annular barrier portion is slightly worn, the packing member is not broken, and it is possible to prevent water leakage due to the broken packing member. Further, the substantially annular barrier portion can prevent the water accumulated in the bulging portion formed on the outer peripheral side from jumping up, and can prevent the laundry in the rotating drum from getting wet.

According to the fourth aspect of the present invention, since the thickness of the substantially annular barrier portion in the radial direction is smaller than the height in the rotation axis direction, the substantially annular barrier portion is formed by the barrier portion. The contact area when contacting a rib provided at a position facing the rib can be reduced, the impact noise generated when the barrier portion hits the rib during operation can be reduced, and the thickness of the mold can be reduced. The durability of the mold can be improved by ensuring the thickness.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a drum type washing machine according to a first embodiment of the present invention, which is partially cut away.

FIG. 2 is an exploded perspective view of the drum type washing machine with a part cut away.

FIG. 3 is a sectional view of the drum type washing machine.

FIG. 4 is a sectional view of a conventional drum-type washing machine.

FIG. 5 is an enlarged sectional view of a main part of the drum type washing machine with a part cut away.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rotating drum 3 outer tub 4 rotating shaft 8 body 13 front opening 14 opening 15 body front opening 26 first motor (drive motor) 27 second motor (drive motor) 32 substantially cylindrical packing member 33 body Side end 34 Substantially annular mounting member

Claims (4)

[Claims] 1. A rotating drum having a rotating shaft in a substantially horizontal direction, an outer tub enclosing the rotating drum, a drive motor for rotating the rotating drum during washing and spin-drying, and a swing mainly comprising the outer tub. A body accommodating the moving body in a swingable manner, and a substantially cylindrical packing member connected between an opening of an outer tub corresponding to a front opening of the rotary drum and a front opening of the body; A drum type washing machine in which a body side end of a member is sandwiched between a substantially annular mounting member and an inner surface of a periphery of a body front opening. 2. The drum type washing machine according to claim 1, wherein the substantially annular attachment member and the peripheral edge of the front opening of the body are fixed by screws from the front side of the body. 3. A rotating drum having a rotating shaft in a substantially horizontal direction, an outer tub enclosing the rotating drum, a drive motor for rotating the rotating drum during washing and spin-drying, and a swing mainly comprising the outer tub. A body accommodating the moving body in a swingable manner, and a substantially cylindrical packing member connected between a front opening of the rotary drum and a front opening of the body, wherein the packing member has a lengthwise direction. A drum-type washing machine in which a part of the drum-type washing machine is folded rearward and inward, and a substantially annular barrier portion is integrally formed at the tip of the inward projection. 4. The drum type washing machine according to claim 3, wherein the substantially annular barrier portion has a thickness in a radial direction smaller than a height in a rotation axis direction.