JP3126555B2 - Washing machine dehydration tub - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehydrating tub for a washing machine made of a metal plate.

[0002]

2. Description of the Related Art In recent years, in a washing machine, a dehydration tub provided with a metal plate such as a stainless steel plate instead of a conventional plastic is provided. This has the advantage that its mechanical strength is high and it can withstand high rotations, so that the dewatering performance can be improved.

[0003] In order to fabricate this, a metal plate is bent into a cylindrical shape, and its both ends are swaged together to form a body. At high speed rotation, the swaged joint is deformed. , Because there is a risk of breakage, the bottom is further caulked to the body, and on the other hand, at the upper edge, a reinforcing metal ring is caulked to the body to reinforce the body. I have.

[0004]

However, in the case of the above, a large metal ring is required to reinforce the caulked joint of the body, and the manufacturing difficulty of caulking and joining the metal ring to the body is also increased. There was a problem that the cost was high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dehydrating tub for a washing machine capable of reducing the cost of reinforcing a caulking joint of a body made of a metal plate. .

[0006]

In order to achieve the above object, in a dehydration tub of a washing machine according to the present invention, a body is formed by bending a metal plate into a cylindrical shape, and both ends thereof are swaged and joined. First, a screw for attaching a balance ring to an upper edge portion of a body portion is provided with a pressing plate having a length straddling the caulking portion, outside the caulking joint portion of the body portion. It is characterized by being fastened together by

In the dehydrating tub of the washing machine of the present invention, the second
In addition, a plurality of ribs formed on the inner periphery of the mounting guide groove of the balance ring mounted on the upper edge portion of the body are brought into contact with the outer side of the caulking joint portion of the body.

[0008]

[0009]

According to the above-mentioned means, in any case, a large reinforcing member is not required, and the crimped joint portion of the body can be strengthened without any difficulty in production.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 4 shows the entire configuration of a washing machine, especially a washing machine for both dehydration, in which a water tub 2 is disposed inside an outer box 1. A dewatering tub 3 also serving as a washing tub is provided in the tub 2, and a stirring member 4 is provided in the dewatering tub 3 at the bottom. A drive mechanism 6 mainly composed of a motor 5 is disposed below the tub 2 so that the dehydration tub 3 is stopped during washing and the agitator 4 is rotated to wash the laundry. By rotating the dewatering tub 3 together with the stirring body 4 during dewatering, the laundry is dewatered from the dewatering holes 7. In addition, a drain valve 8 and a drain hose 9 for draining water from the inside of the tub 2 are provided below the tub 2.

The dewatering tub 3 has a body 3a.
And a bottom 3b. The body 3a is formed by bending a metal plate such as a stainless steel plate into a cylindrical shape.
And, it is formed by caulking and joining by a "haze caulking" indicated by a caulking joint portion 10 in FIG. 2, and the bottom 3b is further caulked and joined to form a bottomed cylindrical shape. As shown in FIG. 3, a large number of balance rings 12 filled with a liquid 11 are fitted to the upper edge of the body 3a by mounting guide grooves 13 on the outer periphery thereof (one in FIG. 3). (Shown only), and using two screws 14 shown in FIG. 1 among them,
A holding plate 15 having a length straddling the caulking joint portion 10 is attached to the outside of the caulking joint portion 10 of the trunk portion 3a together with the balance ring 12.

In this configuration in which the holding plate 15 is attached to the outside of the caulking joint 10 of the body 3a of the dewatering tub 3 made of a metal plate, deformation of the caulking joint 10 during high-speed rotation can be achieved. Reinforcement to prevent breakage is provided by the presser plate 15. And, in such a configuration, the holding plate 15 is
It is a length that only straddles the caulking joint portion 10a, and does not require a large reinforcing member such as a conventional metal ring. Moreover, the mounting is simple with the screw 14, there is no difficulty in manufacturing as compared with a conventional metal ring which is swaged to the body, and the screw 14 is originally used for mounting the balance ring 12. Since it is used in common, no special parts are required for mounting the holding plate 15, and the caulking joint of the body 3a of the dehydration tank 3 made of a metal plate is generally cheap. 10 enhancements.

5 and 6 show a second embodiment of the present invention, in which a plurality of ribs 16 are formed on the inner periphery of the mounting guide groove 13 of the balance ring 12, and this is provided in a dewatering tank. 3 shows the body 3a abutted on the outer side of the caulking joint portion 10 of the trunk portion 3a. By doing so, the reinforcement for preventing deformation and destruction of the caulking joint portion 10 during high-speed rotation is shown. Since the rib 16 can be used, the first
The same operation and effect as the embodiment can be obtained.

[0014]

The present invention is not limited to the embodiment described above and shown in the drawings. In particular, the present invention is not limited to the dehydration tub of the dual-purpose washing machine as a whole. Can be applied in a similar manner, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0016]

The dehydration tub of the washing machine of the present invention is as described above, and the following effects can be obtained.
The body portion is formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, and straddling the caulking joint portion outside the caulking joint portion of the body portion. By fixing the length holding plate together with the screw for attaching the balance ring to the upper edge portion of the body, the caulking joint of the body made of a metal plate can be strengthened at low cost.

Secondly, a plurality of ribs formed on the inner periphery of the mounting guide groove of the balance ring to be mounted on the upper edge of the body are brought into contact with the outer side of the caulking joint portion of the body. Similarly, reinforcement of the caulking of the body made of a metal plate can be performed at low cost.

[0018]

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a longitudinal sectional view taken along line BB of FIG. 1;

FIG. 4 is an overall vertical side view.

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a diagram corresponding to FIG. 3;

[Explanation of symbols]

3 is a dewatering tank, 3a is a trunk, 10 is a caulking joint, 12 is a balance ring, 13 is a mounting guide groove, 14 is a screw,
15 pressing plate, 16 denotes a re blanking.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) D06F 37/12 D06F 39/12 D06F 49/02

Claims (2)

(57) [Claims] 1. A body formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, wherein the caulking seam is provided outside the caulking joint of the body. A dehydrating tub for a washing machine, wherein a presser plate having a length extending across a portion is fastened together by screws for attaching a balance ring to an upper edge portion of a body portion. 2. A torso formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, wherein the torso is provided outside the caulking joint portion of the torso. A dehydrating tub for a washing machine, wherein a plurality of ribs formed on an inner periphery of a mounting guide groove portion of a balance ring mounted on an edge are abutted.