JPH09164294A - Fully automatic washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and surely horizontally install fully automatic washing machine by providing a level at the upper part of main body frame concerning the fully automatic washing machine provided with a suspension supporting means. SOLUTION: A freely rotatable spinning tub, an internal mechanism part having a freely rotatable stirring wing and a driving part for driving the spinning tub and the stirring wing on the inner bottom of the spinning tub, and suspension supporting means for supporting a suspension from the upper part side of main body frame while including the internal mechanism part and spinning tub are provided inside the main body frame. Then, a level 37 is fitted into a housing part, which is composed of a front panel 22 and a control panel, parallelly with the upper end face of a frame body 1. Then, a fluorescent display tube is mounted on a control unit, and an opening part is provided on the front panel 22 so as to watch the indication from the outside. Besides, the control panel is formed from transparent resin and fixed onto the front panel 22 by ultrasonic weld. Concerning the level 37, liquid is sealed in while remaining a little air bubbles inside a case.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to installation of a main body in a fully automatic washing machine, and more particularly to a fully automatic washing machine which can be easily installed horizontally.

[0002]

2. Description of the Related Art In a fully automatic washing machine, an internal mechanism portion including a washing / dehydrating tub and an outer tub having a drive unit attached to the lower portion thereof is suspended and supported by a vibration isolator from four corners of an upper portion of a frame. Therefore, if the floor surface of the installation location is inclined, the main body is inclined, the suspended internal supported mechanical portion is biased, and the gap between the outer tank and the frame changes. This gap is necessary for the dehydration operation to complete normally even if the clothes in the washing and dehydrating tub are slightly offset.
If this gap changes due to the inclination of the main body, the outer tank may collide with the frame during dehydration, or the safety switch may be activated to stop the operation halfway, which prevents normal dehydration operation. Therefore, in a fully automatic washing machine, horizontal installation of the main body is important.

Conventionally, in the installation of a fully automatic washing machine, as a method for horizontally installing the main body, as shown in FIG. 8, a weighted thread or the like is hung from the upper surface of the main body so that the front and rear direction of the main body can be increased. Also, visually measure the gap between the frame surface and the system in the left-right direction at the top and bottom of the frame, and adjust the height of the legs provided at the four corners of the lower edge of the rectangular frame so that they are almost the same. By doing so, the main body was installed horizontally.

Also, a device using various spirit levels is known.

[0005]

However, in the above-mentioned prior art, the accuracy is inferior because the gap is affected by the flatness of the frame surface such as unevenness and curvature.

[0006] In addition, it is very difficult to confirm the levelness in the condition of the installation place, for example, in an installation place where there are obstacles such as walls on both sides and the washing machine is surrounded by three sides including the rear side. Not only that, but there was a problem that the back legs could not be adjusted.

Further, when the horizontal adjustment is performed, it is difficult to detect how many millimeters the height of which leg should be adjusted to make the main body horizontal. There was also a problem that horizontal installation could not be obtained without trying. The same applies to the one using a spirit level.

An object of the present invention is to provide a fully automatic washing machine which can be installed horizontally simply and surely.

[0009]

In order to achieve the above object, the present invention provides a washing / dehydrating tub rotatably provided in a main body frame, and rotatably provided on an inner bottom of the washing / dehydrating tub. Stirrer blade, an internal mechanism section having a drive unit for driving the washing / dehydrating tub and the stirring blade, and a suspension supporting means for suspending and supporting from the upper side of the main body frame including the internal mechanism section and the washing / dehydrating tub In the fully automatic washing machine having the above, a level is provided at the upper part of the main body frame.

It is possible to easily and surely adjust the levelness at a desired temperature setting place by looking at the level.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a basic structural diagram of a fully automatic washing machine. 1 is a frame body including an internal mechanism, 2 is a washing and dewatering tub, provided with a fluid balancer 3 at the top, and a rotatable stirring blade 4 at the bottom. Reference numeral 5 denotes an outer tub that contains the washing and dewatering tub 2, and a drive unit is attached to the bottom through a center base 6 made of a steel plate, and is suspended from four corners at the upper end of the frame 1 by a vibration isolator 7. Have been. The driving unit includes a motor 8, a clutch 9, and a V-belt 10. The rotation of the motor 8 is performed by a motor pulley 11, a V-belt 1, and the like.
The clutch 9 transmits the torque to the agitating blade 4 via an internal reduction gear during washing, and transmits the torque to the stirring blade 4 during dehydration without using the reduction gear. It is transmitted to the washing and dewatering tub 2 to perform dehydration.
13 is a water supply solenoid valve, one end of which is connected to a faucet,
The other end is connected to the water inlet 14. Reference numeral 15 denotes an upper surface cover having a panel box portion, in which a control unit 16 serving as a control unit, a water level sensor 17 for controlling a water level, a power switch 18, an input switch unit 1
9, a fluorescent display tube (progress display portion) 20, etc. are housed. The panel box portion 21 is provided at two locations on the front side and the rear side, and a front panel 22 and a back panel 23 are mounted respectively. Also, the top cover 15 is
An opening 24 for inserting clothes and a lid 2 for opening and closing the opening 24
5 is provided and is fixed to the frame body 1 so as to cover the upper opening of the frame body 1 through the front panel 22 and the back panel 23 with an attaching screw (not shown) from above on the frame body. ing.

Reference numeral 27 denotes a drainage device, which comprises a drainage valve 28, an internal drainage hose 29, and an external drainage hose 30. One end of the drain valve 28 is attached to the drain port 5 a provided at the bottom of the outer tank 5, and the other end is connected to the internal drain hose 29.

The water level is detected by a water level sensor 17 via an air tube 31 from an air trap 5b provided in the outer tank 5.

A synthetic resin base 34 having legs is mounted on the lower surface of the frame 1. Legs are base 34
One is formed at each of the four corners, and the right front is an adjustable leg 35 whose height can be adjusted, and the other three are fixed legs 33 whose height is constant.
It is composed of

FIG. 2 shows a cross section taken along the line AA in FIG. Reference numeral 36 denotes a safety switch, which has a function of interrupting operation when the lid 25 is opened at a safety angle or more during spin-drying, and also when the spin-drying is performed by the outer tub 5 due to the uneven displacement of the cloth in the washing / dehydrating tub 2. It also has the function of interrupting the operation when the vehicle vibrates more than the vibration amount. 36a
Is a safety lever for detecting whirling of the outer tub 5. The safety switch 36 is attached to the upper surface cover 15, and the safety lever 36a is provided so as to extend to the lower outer tank 5 side. Gap between the safety lever 36a and the outer tank 5
Is set so that when the outer tub 5 swings around by the safe vibration amount or more, the outer tub 5 comes to a position corresponding to the safety lever 36a.

The gap g between the outer tub 5 and the frame 1 is also the same as above, and when the amount of unbalance due to the deviation of the cloth is less than the allowable amount, the outer tub 5 and the frame 1 collide. It is set not to.

In FIG. 3, 37 is a cylindrical level. FIG. 4 shows a cross-sectional view of the main part of the level 37 mounting part.
The level 37 includes a front panel 22 and an operation panel 22a.
It is attached to the storage section constituted by and in parallel with the upper end surface of the frame body 1. FIG. 9 is a cross-sectional view of an operation unit other than the level 37. A fluorescent display tube 20 is mounted on the control unit 16, and an opening 22b is provided in the front panel 22 so that the display can be seen from the outside. The operation panel 22a is made of transparent resin and is fixed to the front panel 22 by ultrasonic welding.

The ultrasonic welding has a double structure, the outer peripheral portion 22c is for strength, and the inner peripheral portion 22d is the opening 22.
It is provided around b and is watertight.

As described above, the double structure ultrasonic welding can synergistically secure the water resistance and the strength.

The level 37 has a case 38 in which a liquid 40 is sealed, leaving a few bubbles 39.

The case 38 includes the case body 38b and the liquid 4
It is composed of a lid 38c having a zero injection hole 38e and a stopper 39d, and the respective materials are made of synthetic resin in consideration of impact resistance. Further, the respective members are joined by ultrasonic welding. The inside of the upper surface of the case 38 is spherical. Further, the inside of the lid 38c also has a spherical surface with the injection hole 38e as the apex. This is for simplification when adjusting the size of the bubble 39. The liquid 40 in the case 38 is
Since the air bubbles 39 always try to be horizontal,
Is located at the contact point between the spherical surface 38a and the horizontal surface. The point where the bubble 39 is located when the main body is in the horizontal state is the reference point S. Since the radius of the spherical surface 38a and the amount of movement of the bubble 39 due to the inclination are in a proportional relationship, the larger the radius, the smaller the inclination can be detected, but on the other hand, the adjustment becomes difficult. Taking into account the horizontal accuracy required for a fully automatic washing machine and the anti-vibration performance when tilting, the radius is experimentally set within the range of 50 to 200 mm.

Further, since the moving amount of the bubble 39 is proportional to the installation inclination angle of the washing machine main body and the moving direction matches the installation inclination direction of the washing machine main body, an appropriate display is displayed on the surface of the level 37. If applied, you can check the amount of height adjustment of the legs.

FIG. 5 is a plan view of the spirit level 37. On the surface of the case 38, two straight lines centering on the reference point S and orthogonal to each other in the depth direction and the left-right direction, and a circle having a diameter Di indicating the allowable installation inclination angle of the washing machine body are displayed. Do is the maximum diameter of the display of the level 37, and d is the outer diameter of the bubble 39.

Here, the allowable installation inclination angle of the main body of the washing machine is α = 1/120 for the slope, the height difference δh = 4 mm in the pitch between the legs in that case, the movement amount δ = 2 mm of the bubble 39 (the spherical surface 39a). The radius of δ = 2 mm)
If the diameter d is 4 mm and the installation state in which the bubble 39 exists in Di is allowed, then Di = 8 mm. Do
= 16 mm, the leg height adjustment amount δh for horizontally installing the washing machine body is as follows. FIG.
In the case where the outer diameter of the bubble 39 is in contact with or intersects Di, the moving amount δ of the bubble 39 is 2 <δ ≦ 6 mm, and the leg height adjustment amount δh is 4 <δh ≦ 12 mm. δh =
It will be 8 mm. Further, in FIG. 7, the outer diameter of the bubble 39 is
When intersecting with Do, the movement amount δ of the bubble 39 is 6 <δ <
It is 10 mm, and the height adjustment amount δh of the leg is 12 <δh <
It is sufficient to set δh = 16 mm from 20 mm. In this case, since the bubble 39 has moved to the left side on the X axis in both cases,
It can be seen that height adjustment can be done with the front and rear legs on the left side.

The height of the legs is adjusted as follows. The front right leg is a screw-type adjusting leg 35, and the leg height can be changed by rotating the leg. Since the other three are fixed legs 33, they have a predetermined height (8 mm), and two distant pieces that fit into the fixed legs 38 are prepared for each leg.
The level 37 is attached according to the position of the bubble 39. First,
Place the washing machine at the place where the washing machine is installed. The movement amount and direction of the bubble 39 at that time are grasped.

Next, the washing machine is laid down sideways, and a distant piece is attached to each leg according to the movement amount and direction of the bubble 39. After that, it is possible to obtain the levelness equal to or less than the allowable installation inclination angle of the washing machine without returning to the installation place.

At least one of the four legs is an adjusting leg to prevent subtle rattling. In FIG. 6 described above, one distant piece may be attached to each of the left and right fixed legs 33, and in FIG. 7, two distant pieces may be attached to each. Similarly, the height of the corresponding leg is adjusted according to the position of the bubble 39 to horizontally install the washing machine.

As described above, according to the present invention, the levelness of the washing machine can be easily checked and adjusted at any installation place, and the accuracy of the adjustment can be improved, so that the gap between the outer tub 5 and the frame 1 is also improved. The size of the frame 1 can be minimized, and the stoppage of operation during dehydration due to insufficient horizontal adjustment and abnormal vibration can be prevented.

[0029]

As described above, according to the present invention, the washing / dehydrating tub rotatably provided in the main body frame and the stirring blade rotatably provided on the inner bottom of the washing / dehydrating tub. An internal mechanical section having a drive section for driving the washing / dehydrating tub and the stirring blade, and a suspension supporting means for suspending and supporting from the upper side of the main body frame including the internal mechanical section and the washing / dehydrating tub. This is a fully automatic washing machine with a level on the top of the main frame.

According to this structure, since the inclination indicated by the level can be adjusted for adjustment, horizontal installation can be performed easily and securely.

[Brief description of the drawings]

FIG. 1 is a sectional view of a basic structure showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a sectional view showing the basic structure of a main part of an embodiment of the present invention.

FIG. 4 is a cross-sectional view of an essential part showing an embodiment of the present invention.

FIG. 5 is a plan view of an essential part showing an embodiment of the present invention.

FIG. 6 is a plan view of an essential part showing an embodiment of the present invention.

FIG. 7 is a plan view of an essential part showing an embodiment of the present invention.

FIG. 8 is a front view and a side view of a conventional fully automatic washing machine.

FIG. 9 is a sectional view showing the basic structure of a main part of an embodiment of the present invention.

[Explanation of symbols]

 37 ... Level, 39 ... Bubbles.

Front page continuation (72) Inventor Kiyoshi Suzuki 1-1-1 Higashitaga-cho, Hitachi-shi, Ibaraki Living Company Division, Hitachi Ltd.

Claims (1)

[Claims] 1. A washing / dehydrating tub rotatably provided in a main body frame, a stirring blade rotatably provided on an inner bottom of the washing / dehydrating tub, and the washing / dehydrating tub and the stirring blade. In a fully automatic washing machine including an internal mechanism section having a drive section for driving and a suspension supporting means for suspending and supporting the internal mechanism section and the washing / dehydrating tank from the upper side of the main body frame, Fully automatic washing machine with a level.