JPS6237591Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has a pole installed in the centrifugal dehydration tank, which prevents the clothes from forming a film, and thus prevents the clothes from forming a film. This invention relates to a dewatering device that promotes the flow of water and the flow of wind during dewatering.

In this type of device, a cap is fixed to the inner bottom of the dehydration tank, and a receiving part for inserting a pole is formed in the cap. The receiving portion and the pole are each provided with an engaging piece or an engaging claw, so that the pole can be engaged in the vertical direction by slightly rotating the pole during insertion. Further, in order to ensure this engaged state, it is common to provide separate elastic means between the receiving part and the pawl. Therefore, the installation of this elastic means is complicated.

Therefore, it has been considered to integrally form an elastic piece on the inner surface of the receiving portion to bias the pole upward. For example, an elastic piece is formed that slides obliquely upward on the outer peripheral surface of the pole, or a tapered surface is formed in advance on the outer peripheral surface of the pole, and the elastic piece is simply brought into contact from the side. However, if an elastic piece is formed in the receiving part, the clothes may get caught on the elastic piece when putting in and taking out clothes, especially when taking them in and out without using a pole, which can damage the clothes or deform or break the elastic piece. I had something to do.

The present invention has been developed in view of the above points, and is a dewatering device in which an upward projecting piece is formed higher than the elastic piece on the top of the receiving part, which faces the elastic piece that urges the pole upward. As a result, even when clothing is placed on the elastic piece, it is first placed on the protruding piece, which greatly reduces the chance of the clothing being directly caught on the elastic piece, thereby preventing damage or deformation of the clothing or the elastic piece.

Hereinafter, an embodiment will be explained based on the drawings. 1 is a dehydration tank in a two-tub washing machine, a motor rotating shaft 2 is connected to the outer bottom, and a dehydration tank bored in the peripheral wall is connected during centrifugal dehydration by motor drive. Water is dehydrated or exhausted from hole 3. Reference numeral 4 designates a water inlet for supplying water to the upper opening of the dehydration tank 1 as needed, and 5 designates a cap fixed to the inner bottom of the dehydration tank 1, which hides the connecting portion of the rotating shaft 2.

Here, the cap 5 has a disc shape, and a plurality of claw pieces 6 are integrally provided on the outer peripheral edge, and
Screw holes 7, 7 are provided, and the claw pieces 6... are connected to the dehydration tank 1.
After engaging in a proper position on the lower inner surface of the dehydration tank 1, it is fixed to the inner bottom of the dehydration tank 1 using screw holes 7, 7 with screws 8, 8. In addition, the cap 5 has its central part raised high and then lowered downward, and a bottomed cylindrical receiving part 9 is formed in this descending part, and a guide rod 10 is connected to the inner surface of the receiving part at the center of the bottom surface of this receiving part 9. They protrude higher than the receiving portion 9 at intervals. The receiving part 9 has a fitting receiving surface 11 in an upwardly expanding shape, that is, a bulging shape, formed over the entire circumference at the upper part of the inner surface.
120 degrees) are opened from the middle part to the upper fitting receiving surface 11 like a window 12, and an elastic piece 13 of a predetermined width is integrally erected on the lower side of this window 12. The head 14 is located higher than the fitting receiving surface 11.

Although this head 14... has a predetermined thickness,
This thickness gradually becomes thinner from one end 14' and reaches its minimum at the other end 14'', during which time the taper 14
It forms the

Furthermore, a rectangular engaging piece 15 is integrally provided at the lower part of the inner surface of the receiving part 9 facing the elastic piece 13 from below, and projects toward the center.
The lower surfaces 16 of the members 5 are inclined downward from the one end 14' to the other end 14''.

The top of the fitting receiving surface 11 located on the upper side of the window 12 is projected higher than the window 12 and the head 14, and forms a projecting piece 17.

Reference numeral 18 denotes a water and ventilation pole inserted into the receiving portion 9, and has a cylindrical lower part and a polygonal cylindrical upper part, with an inlet 19 at the upper end and a number of outlets 20 on the peripheral wall. ... are respectively provided, and blades 21 are integrally formed on the outer periphery slightly above the cylindrical lower part. This pawl 18 has square engaging claws 22 integrally protruding outward on the outer periphery of the cylindrical lower part, and the above-mentioned fitting receiving surface 1 is provided between this and the blades 21.
1 and the head 14 of the elastic piece 13...
... forms a fitting surface 23 that comes into elastic contact.

The upper surface 24 of the above-mentioned engagement claw 22... is the above-mentioned engagement piece 1
5... is inclined in the same direction as the lower surface 16..., and when the pole 18 is rotated clockwise, the lower surface 1
6. It enters and engages.

Further, on the fitting surface 23 facing the engaging claws 22 from above, elastic pieces 13 are attached from the pole axis direction.
There is a recess 25 cut into the same width as the upper surface 2 of the engaging claw 22.
4 Tapered surface 2 where the side wall surface on the side with a lower slope is gentle
6, and the side wall surface on the higher slope side is formed as a stopper surface 27. However, depression 2
One of 5... is a flat one with no wall surfaces on both sides due to mold cutting. Then, when the pawl 18 is rotated clockwise, the recess 25 receives the head 14 of the elastic piece 13 from the tapered surface 26 and is locked by the stopper surface 27.
…It accommodates the whole.

Here, the insertion operation of the pawl 18 will be explained in order. First, the lower opening of the pawl 18 is fitted into the guide rod 10, and the pawl 18 is lowered. Then, the heads 14 of the elastic pieces 13 touch the fitting surface 23 of the pole 18.
It elastically contacts and tries to push upward,
Here, a cushion is given to the insertion operation. Also, here, since the elastic heads 14 are pushed open, when viewed from above, it can be seen that the elastic heads 14 are inserted by the outward movement of the heads 14.

Next, when the pawl 18 is rotated clockwise, the engaging claws 22 enter the lower portions of the engaging pieces 15, and the upper surfaces 24 and the lower surfaces 16 engage with each other. At the same time, the upper surface 24 is sliding along the slope of the lower surface 16, so the pole 18 is gradually pulled downward as if screwing together a screw, and the mating surface 2
3 is brought into close contact with the fitting receiving surface 11 over the entire area.

On the other hand, the heads 14 of the elastic pieces 13 that are in elastic contact with the fitting surface 23 enter the recess 25 while slidingly contacting the tapered surface 26 of the recess 25, and contact the stopper surface 27. One side end 14'... is abutted and locked. When the head 14 enters the recess 25, it tapers 1 from one end 14' to the other end 14''.
4 coincides with the tapered surfaces 26 in the same direction and comes into elastic contact with them, so that they are sucked into the recesses 25.

After attaching the pole 18 to the inner bottom of the dehydration tank 1 in this way, the clothes W to be rinsed or dehydrated are
into dehydration tank 1. At this time, clothing W is on window 12.
...If you try to dig in, the protrusion 17... will get in the way.

Reference numeral 28 denotes a flexible presser lid that is fitted into the upper opening of the dehydration tank 1. It has a round hole 29 in the center, is placed on the inlet 19 of the pole 18, and faces it. Forming small blades 30 for blowing air,
A large number of through holes 31 are provided on the outer peripheral surface of the small blades 30.
are formed radially. And Kobane 30...
The inner and outer peripheries of the through holes 31 are edged high, and the peripheries of the through holes 31 are edged low.

During rinsing, the dehydration tank 1 is rotated continuously or intermittently, and water is fed from the water supply port 4 either continuously or during interruptions in rotation. The garment W is pushed outward by the centrifugal force at the beginning of rotation, and since there is the pole 18, a film of the garment is not formed including the center, and a cavity is created in the center. The water once accumulates on the presser foot cover 28 and then overflows to each through hole 3.
1... flows down almost uniformly and directly enters the upper part of the clothing W, and also flows down along the pole 18 and enters the lower part of the clothing W. Then, the water passes through the clothes W, dilutes the detergent, and exits from the dehydration holes 3.

When completely dehydrating, stop water supply and return to dehydration tank 1.
rotate continuously. Then, the small blades 30 suck air into the tank through the upper inner and outer lids of the dehydration tank 1. This air flow, that is, the wind, is
It can flow down through the central cavity, and on the other hand, it is subjected to centrifugal force, so it passes through the clothes W and exits from the dehydration holes 3. At this time, the moisture in the clothing is evaporated. The wind that exits from the dehydration hole 3 passes through the washing tub, etc., and exits the machine. At this time, since the pole 18 has a polygonal shape, wind is sucked in from the inlet 19 through the round hole 29 by centrifugal force, and is discharged from the outlet 20. or,
The lower blades 21 cause the wind to flow down along the pole 18 and to penetrate the lower clothing well.

When removing the pawl 18, it is rotated counterclockwise, but since the taper 14 of the elastic piece 13 matches the tapered surface 26, the head 14 of the elastic piece 13 smoothly escapes from the recess 25, and the engaging claw 22... upper surface 24
... and the lower surface 16 of the engagement piece 15... are also disengaged. Therefore, if you pull it up here, pole 18
can be removed from the dehydration tank 1.
In addition, when the pole 18 is removed, the protruding pieces 17 protrude higher than the heads 14 of the elastic pieces 13, so if the clothes W are used as is, the elastic pieces 13 will catch the clothes W. There are few things to do, clothes W
The protruding pieces 17 prevent damage to the elastic pieces 13 and deformation of the elastic pieces 13.

As described above, the dewatering device according to the present invention has a protruding piece on the top of the receiving part, so this protruding piece protects the elastic piece, prevents clothes from getting caught on the elastic piece, and prevents damage to the clothes. , deformation and damage of the elastic piece can be prevented.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the dewatering device according to the present invention;
Figures A, B, and C are perspective views, top views, and enlarged perspective views of the main parts of the cap, Figures 3A and B are front and back views of the main parts of the pole, and Figure 4 shows the pole in its inserted state. FIG. 1... Dehydration tank, 5... Cap, 9... Receiving part,
11... Fitting receiving surface, 13... Elastic piece, 15... Engaging piece, 17... Projecting piece, 18... Pole, 22...
Engagement claw, 23...fitting surface.

Claims (1)

[Scope of utility model registration request] A cap is fixed to the inner bottom of the centrifugal dehydration tank, and a cylindrical receiving part into which a pole for water supply or ventilation is removably inserted is formed in this cap, and the above-mentioned receiving part has an upwardly facing part on the inner surface of the above-mentioned pole. In addition to forming an elastic piece that provides elasticity, an engaging piece that engages the pole engaging pawl from above and below is formed on the lower part of the inner surface, and an upwardly protruding piece is formed on the top of the receiving part that faces the elastic piece. A dehydration device formed higher than the