JPH0548158B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a two-tub washing machine used in general households, particularly to a washing tub holding structure.

BACKGROUND ART A general two-tub washing machine will be explained with reference to FIG. In other words, a washing machine 1 made of resin molding
is formed integrally with the dehydration tank 2. The washing tub 1 has rotary blades 3 on the bottom surface, and the rotation of a washing motor 5 fixed to an underframe 4 is transmitted to the rotary blade 3 via a motor pulley 6, a belt 7, an impeller pulley 8, and a shaft 9. do.

The tubs (washing tub 1 and dehydration tub 2) are fixed to the box 10 at the upper end with screws, and the box 10 is fixed to the underframe 4 at the lower end with screws. In other words, the tank is suspended from the upper end surface of the box 10.

Problems to be Solved by the Invention However, in the conventional configuration, the washing tub 1 has the following steps in order to prevent slippage between the motor pulley 6, impeller pulley 8 and belt 7, and loss of power transmission. Since the belt 7 is stretched to have a certain degree of tension, the washing tub 1 is always pulled in the direction of the washing motor 5.

Further, while the washing motor 5 is rotating, its pulling force increases. The deformation of the washing tub 1 due to this force sometimes becomes large when hot water is used during washing. Since the upper part of the washing tub 1 is fixed to the box body 10, the washing tub 1 deforms as shown by the two-dot chain line in FIG. 6. In addition, since the washing tub 1 contains more than 30 liters of water or hot water during washing, depending on its weight,
The washing tub 1 is deformed downward.

Due to the above deformation, the contact between the belt 7 and the impeller pulley 8 and the motor pulley 6 becomes uneven, the contact area between the two is reduced, slipping is more likely to occur, power transmission is lost, and the rotor blade 3 is damaged. The washing and rinsing performance will be insufficient due to insufficient rotation.

Furthermore, due to the deformation of the washing tub 1, the positions of the impeller pulley 8 and the motor pulley 6 become closer, so that the belt 7 becomes loose.

In view of the above-mentioned problems, the present invention prevents the deterioration of washing performance and rinsing performance, which are the basic performance of washing machines, due to belt slippage due to deformation of the washing tub and the resulting insufficient rotation of the rotor blades. At the same time, it is an object of the present invention to improve the ease of assembling the tubs and to reduce the size of the two-tub washing machine.

Means for Solving the Problems In order to achieve the above object, the two-tub washing machine of the present invention has a tub consisting of a washing tub and a dehydrating tub, a box body for storing the layers, and a lower end of the box body. The drain pipe is provided with a downwardly protruding pipe part, and the rod inserted into the pipe part is attached to the stand. It is provided on a frame, and when a flange portion on the upper end outer periphery of the tank is inserted into the upper end outer periphery of the box body, the rod body enters into the pipe portion, and a dimension a in which the upper end surface of the tank and the flange portion overlap The insertion dimension b of the rod inserted into the tube has a relationship b>a, and a gap is provided between the tube and the rod.

Effect With the above configuration, the rod projecting upward from the underframe and the pipe section provided in the drain pipe hold the tub from below, prevent the washing tub from deforming toward the washing motor, and prevent the washing tub from deforming toward the washing motor. Depending on the weight of the hot water and water inside,
This prevents the washing tub from deforming downward and prevents the belt from slipping and the resulting deterioration in washing and rinsing performance due to insufficient rotation of the rotor. In addition, the dimension a where the upper end surface of the tank and the flange portion overlap
and the insertion dimension b of the rod inserted into the tube section is b>
Since the relationship a is established, when the tank is housed in the box, the rods of the underframe enter into the pipe section, allowing positioning of the tank and improving ease of assembly. Furthermore, since the drain pipe below the bottom of the tank has a pipe section to support the tank, the length of the rod inserted into this pipe section can be shortened, and the rod has enough strength to support the tank without having to make it thick. This makes it possible to reduce the size of the two-tub washing machine without increasing the size of the pipes and rods that support the tubs.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

In the figure, reference numeral 11 denotes a drain pipe connected to the bottom of the washing tub 1 for draining water, and the interior is comprised of an L-shaped hollow pipe and a vertically protruding pipe section, as shown in FIG. 12 are integrally formed, a partition wall 12 is provided between the two, and the lower part of the tube part 12 is open, into which a rod 13 integrally formed with the underframe 4 is inserted. A space of several millimeters is provided between the inner wall of the tube portion 12 and the rod 13 on both the upper surface and the side wall. This space is provided in consideration of variations in shape of the tank and the underframe 4 during molding, and allows smooth insertion of the tube portion 12 and the rod 13 when assembling the product.

In this way, in order to hold the washing tub 1, the drain pipe 1
There are the following three advantages of holding the base frame 4 through the frame 1.

Firstly, the attachment position of the drain pipe 11 to the bottom of the washing tub is as shown in FIG.
It is attached to the lower surface of the step B15 continuous to the step B15, and the side wall 1 where the step A14 and the step B15 are continuous.
6, the entire bottom of the washing tub 1 is held by the frame 4 via the drain pipe 11. Compared to this configuration, the stepped portion A
14. If you try to hold the washing tub 1 at the bottom of the washing tub 1 other than the step B15, force will be applied only to the holding part.For this reason, you will not be able to hold the entire washing tub; Only the holding part is deformed.

The second advantage is that of the positional relationship in the height direction. That is, as shown in Fig. 2, the drain pipe 1
Position 1 is provided at the lowest part of the bottom of the washing tub 1 so that no water remains in the washing tub 1. Further, as the drain pipe 11 extends downward, the distance from the underframe 4 becomes smaller, so that the pipe portion 12 formed integrally with the drain pipe 11 and the rod body 13 integrally formed with the underframe 4 become closer. The height is directly from the bottom of the washing tub 1 to the pipe part 1.
2, and the amount of material required is also reduced, and the strength against the force in the perpendicular direction of the tube portion 12 and the rod body 3 is increased.

The third advantage is that the drain pipe 11 is connected to the dehydration tank 2.
Since it is also connected to the bottom, it has the function of preventing deformation of the washing tub 1. Conventional drain pipe 11
Although the washing tub 1 and the dehydration tub 2 are connected, there are other fixed parts, such as the underframe 4 and the box body 1.
0, both tubs were deformed at the same time, and even though both tubs were connected, they were not sufficiently effective against the deformation of the washing tub 1.

On the other hand, in this embodiment, the drain pipe 11
Since the underframe 4 and the underframe 4 are connected to each other, deformation of the washing tub 1 is prevented by both the underframe 4 and the dehydration tank 2, and the synergistic effect of the two provides a sufficient effect.

Furthermore, as shown in Fig. 4, the order of assembling the tank, the box body 10, and the underframe 4 is as follows:
The flange part 16 on the lower end surface of the box body 10 is fixed with screws, and the V-shaped flange part 17 of the tank is inserted into the upper end surface of the box body 10 and fixed with screws. V of the upper end surface of the box body 10 and the tank
Overlap dimension a18 of letter-shaped flange portion 17
Compared to this, there is a relationship b>a between the insertion dimensions b19 of the pipe portion 12 and the rod 13, and when inserting the tub into the box body 10 from above, first the drain pipe at the bottom of the washing tub 1 is inserted into the box body 10 from above. The rod body 13 provided on the underframe 4 is inserted into the tube portion 12 provided on the tube portion 11, and the insertion of both serves as a guide to smoothly insert the upper end surface of the box body 10 and the V-shaped flange portion 17 of the tank. I can do it. Since the V-shaped flange portion 17 is made to cover the outer circumference of the tank, it takes time to insert it into the box body 10, but due to the function of the guide, the insertion of both can be performed smoothly.

The dimension c20 is the gap between the pipe part 12 and the rod 13 after insertion, and the initial value of this dimension c20 is set so that it becomes 0 due to the deformation of the washing tub 1 when water is poured into the washing tub 1. , When assembling the product, the tube part 12 and the rod body 1 are
3 from coming into contact with each other and making it impossible to assemble, and also minimizing downward deformation due to water or hot water in the washing tub 1.

Effects of the Invention As described above, the present invention provides the following effects.

(1) Prevents the washing tub from being deformed by the water or hot water placed in the resin washing tub, and drives the rotor blades. It prevents the increase of slip between the impeller pulley, motor pulley and belt, and prevents deterioration of the basic performance of the washing machine during washing and rinsing.

(2) When assembling the product, a protrusion formed integrally with the underframe is inserted into the drain pipe provided on the bottom of the washing tub to guide the work of delivering the tub into the box, thereby making assembly work easier. can be carried out smoothly.

(3) Since the pipe that supports the tank is installed in the drain pipe below the bottom of the tank, the length of the rod inserted into the pipe can be shortened, ensuring the strength to support the tank without making the rod thicker. Therefore, the size of the two-tub washing machine can be reduced without increasing the size of the pipe and rod supporting the tub.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of a two-tub washing machine according to an embodiment of the present invention, Fig. 2 is a rear view of the same, Fig. 3 is a top view of the same, Fig. 4 is a sectional view of the same, and Fig. 5 is a conventional Fig. 6 is a partially cutaway front view showing a modification of the two-tub washing machine. 1...Washing tub, 4...Underframe, 11...Drain pipe,
12... Pipe portion (protruding body), 13... Rod body (protruding body).

Claims (1)

[Claims] 1 comprising a tank consisting of a washing tub and a dehydration tub, a box housing the layers, a frame attached to the lower end of the box, and a drain pipe communicating with the bottoms of the washing tub and the dehydration tub, The drain pipe is provided with a pipe portion projecting downward, a rod body to be inserted into the pipe portion is provided on the underframe, and a flange portion on the upper end outer periphery of the tank is inserted into the upper end outer periphery of the box body. The rod is configured to fit into the tube, and a dimension a in which the upper end surface of the tank and the flange overlap and an insertion dimension b of the rod inserted into the tube have a relationship of b>a, and A two-tub washing machine in which a space is provided between the pipe portion and the rod body.