KR100756996B1 - Fixing structure between drum and spider of drum washer - Google Patents

Abstract

A connection structure between a drum and a spider of a drum type washing machine is provided to cut down a cost and to prevent different kinds of defects by insert-injecting the spider and a bottom unit of the drum in one body, thereby improving connection power between the drum and the spider. In a connection structure(100) between a drum(110) and a spider(120) of a drum type washing machine, a bottom unit(113) and the spider are inserted together. A through hole(112) is formed at the spider to allow a rotary shaft to be connected at a center part thereof. The disk-typed body(121) in which a circular partition(123) is projected with predetermined height, is formed at an outer part of the through hole. At least three extension units are extended to external of the disk-typed body with predetermined length. The spider has an internal region(121a) and an opposite region(121b) of the circular partition. The opposite region faces to the internal region and is exposed to an outer part of the bottom unit.

Description

Fixing structure between drum and spider of drum washer}

1 is an external perspective view illustrating a coupling structure of a drum and a spider of a conventional drum washing machine.

2A and 2B are an external perspective view and an internal perspective view showing a drum and spider coupling structure of the drum washing machine according to the present invention.

3A and 3B are a plan view and a rear view showing the structure of the spider according to the present invention.

4 is a longitudinal cross-sectional view of FIG. 2A.

<Description of Symbols for Main Parts of Drawings>

100; Combination structure of drum and spider according to the present invention

110; Drum 111; Cylindrical body

112; Through 113; Bottom

114; Through hole 120; Spider

121; Disc body 121a; Interior area

121b; Opposite region 122; Through

123; Circular bulkhead 124; Radial bulkhead

125; Square through hole 126; Extension

127; Radial bulkhead 128; Columnar bulkhead

129; Through

The present invention relates to a drum and spider coupling structure of a drum washing machine, and more particularly, to a drum washing machine which can reduce the cost and manufacturing cost, reduce the number of assembly processes, and prevent various defects by inserting the drum bottom and the spider integrally. To a drum and spider coupling structure.

In general, a drum washing machine puts water, detergent and laundry inside a drum in which a plurality of protrusions are formed, and rotates at a low speed on a horizontal axis, where the laundry is lifted up by the protrusions. It has the advantage of using less water.

1 is an external perspective view illustrating a coupling structure of a drum and a spider of a conventional drum washing machine.

As shown, the conventional drum and spider coupling structure 100 'has a cylindrical body 102' having a plurality of through holes 101 'formed on a circumferential surface in a substantially cylindrical form, and one side of the main body 102'. A bottom portion 103 'coupled to prevent a block forms a drum 104', and a spider 105 'is coupled to a bottom portion 103' of the drum 104 '. Here, the main body 102 'of the drum 104' is made of stainless steel that is hard to rust, the bottom portion 103 'is made of resin, and the spider 105' is made of aluminum Is formed.

On the other hand, the spider 105 'is composed of approximately a disc body 106' and six extensions 107 'extending a predetermined length outward from the disc body 106', and the disc body 106 ' ) Is formed with a through hole (108 ') for coupling the rotating shaft, and the six through (107') bolt through hole (110 ') so that the bolt (109') can be coupled to the bottom portion 103 ' Formed.

However, such a conventional drum and spider coupling structure, as described above, by manufacturing the bottom and the spider, respectively, and bolting the spider to the bottom during the assembly process, the cost and manufacturing cost is high and the assembly process time is long There is a problem.

In addition, such a drum and spider coupling structure of the related art may loosen the bolt for coupling the bottom portion and the spider according to the use time of the drum washing machine, and there is a risk that the spider may be separated from the drum.

Of course, there is a problem that the noise during operation of the washing machine increases according to the loosening of the bolt.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to insert and insert the drum bottom and the spider integrally to reduce the cost and manufacturing cost, reduce the number of assembly process and prevent various defects A drum and spider coupling structure of a drum washing machine is provided.

In order to achieve the above object, the present invention is open at one side and a plurality of through-holes are formed on the circumferential surface to form a cylindrical body, the other side of the main body is formed by closing the drum and the bottom, fixed to the bottom In the coupling structure of the drum and the spider of the drum washing machine consisting of a spider, characterized in that the bottom and the spider is inserted (insert) together.

Here, the spider has a through-hole is formed so that the rotation axis is coupled to the center, the outer side of the through hole has a disc body protruding a predetermined height formed a circular partition wall, and at least three extensions extending a predetermined length to the outside of the disc body Can be.

In addition, the spider may expose an inner region of the circular partition wall and an opposite region corresponding to the inner region to the outside of the bottom portion.

In addition, the spider may be the extension portion is wrapped around the bottom portion.

In addition, the spider may be further formed with a plurality of radial partitions on the disc body that is the outer side of the circular partition wall to increase the coupling force with the bottom portion.

In addition, the spider may be further formed with a rectangular through-hole so that the bonding force with the bottom portion is increased.

In addition, the bottom part may have a through hole formed through the rectangular through hole.

In addition, the spider may be formed with at least one of a plurality of radial partitions or columnar partitions in the extension to increase the coupling force with the bottom.

As described above, the drum and the spider coupling structure of the drum washing machine according to the present invention inserts together when the spider is formed at the bottom of the drum, thereby improving the coupling force between the drum and the spider.

In addition, the present invention is formed by the partition and the through-hole of various shapes in the area of the spider is inserted into the bottom portion, the coupling force between the spider and the drum is further improved.

In addition, the present invention by inserting the spider together when forming the bottom of the drum, it is possible to reduce the cost and manufacturing cost, and further reduce the number of assembly process can prevent various defects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

2A and 2B are an external perspective view and an internal perspective view showing a drum and spider coupling structure of the drum washing machine according to the present invention. 3A and 3B are a plan view and a rear view showing the structure of the spider according to the present invention. 4 is a longitudinal cross-sectional view of FIG. 2A.

The coupling structure 100 of the drum 110 and the spider 120 of the drum washing machine according to the present invention has one side open at the same time a plurality of through holes 112 are formed on the circumferential surface to form a cylindrical body 111, the main body The other side of the 111 includes a drum 110 formed by being closed by the bottom 113, and a spider 120 fixed to the bottom 113.

Here, the present invention is characterized in that the injection molding of the spider 120 is inserted (insert) together when the injection molding of the bottom 113. That is, the present invention inserts the spider 120 into the mold first, and then injects a thermosetting resin, a thermoplastic resin, or an equivalent thereof to the bottom 113 by injection molding, thereby coupling between the bottom 113 and the spider 120 The strength and accuracy of the mating position is much improved compared to the prior art. Of course, according to the present invention, even if the use time of the drum washing machine elapses, the spider 120 is not separated from the bottom 113 and no noise is generated.

In addition, in the present invention, the spider 120 includes a disc body 121 and at least three extension parts 126 extending a predetermined length outward from the disc body 121. Of course, three or fewer or three or more extension portions 126 may be used. However, three extensions having the same angle are most suitable in consideration of bonding strength, manufacturing cost, and the like. However, the present invention is not limited to the number and mutual angles of the extension portions 126.

The disc body 121 has a through hole 122 having a predetermined diameter so that the rotating shaft (not shown) of the drum washing machine is coupled to the center thereof, and the outer side of the through hole 122 protrudes a predetermined length in an upward direction. The partition wall 123 is included. In addition, a plurality of radial partitions 124 which are arranged substantially radially around the through hole 122 are formed outside the circular partition 123, and a plurality of rectangular through holes are formed between the radial partitions 124. 125) is formed. However, the rectangular through hole 125 is not formed between all the radial partition walls 124. In addition, a plurality of radial partitions are formed in the inner region 121a of the circular partition 123 for strength reinforcement.

In addition, a plurality of radial partitions 127 and columnar partitions 128 are formed in the extension part 126, and through holes 129 are formed in the radial partitions 127 themselves.

The spider 120 may be any one selected from aluminum, brass, alloy or equivalent, but the material is not limited thereto. Of course, such a spider 120 is preferably a material that does not rust due to moisture. In addition, the bottom portion 113 may be any one selected from a thermosetting resin, a thermoplastic resin, or an equivalent thereof, but the material is not limited thereto.

Meanwhile, the spider 120 has an inner region 121a, which is an inner side of the circular partition wall 123, and an opposite region 121b corresponding to the inner region 121a, is exposed to the outside of the bottom 113. . That is, the inner region 121a and the opposite region 121b are not surrounded by the bottom portion 113. In other words, the outer region and the extension portion 126 of the circular partition wall 123 formed in the disc body 121 of the spider 120 is completely wrapped by the bottom 113.

In addition, the radial partition 124 and the rectangular through-hole 125 formed on the outer side of the circular partition 123 of the spider 120 is also located and coupled inside the bottom portion 113, the spider 120 And the coupling force between the bottom 113 is further increased. That is, the radial partition 124 and the rectangular through hole 125 increases the coupling area between the bottom portion 113, and thus, the coupling force between the spider 120 and the bottom portion 113 increases.

Furthermore, the plurality of radial partitions 127, the cylindrical partitions 128, and the through-holes 129 formed in the radial partitions 127 of the spider 120 are also located inside the bottom 113. As a result, the coupling area is increased to increase the coupling force between the spider 120 and the bottom 113.

On the other hand, on the surface of the bottom 113, traces indicating that the insert 120 is inserted injection remains. That is, the bottom portion 113 is formed with a plurality of partitions for reinforcing its own rigidity, the area corresponding to the spider 120 of the partition wall has a predetermined thickness in the form of the spider 120 is protruded and insert injection Molding traces remain intact. In addition, a through hole 129 is formed at a position corresponding to the rectangular through hole 125 of the spider 120 among the bottom 113 so that the spider 120 moves completely inside the bottom 113. It is not supposed to be.

As described above, the drum and the spider coupling structure of the drum washing machine according to the present invention has an effect of inserting the spider together when forming the bottom of the drum, thereby improving the coupling force between the drum and the spider.

In addition, the present invention is formed by the partition and the through-hole of various shapes in the area of the insert portion of the spider, there is an effect that the binding force between the spider and the drum is further improved.

In addition, the present invention by inserting the spider together when forming the bottom of the drum, it is possible to reduce the cost and manufacturing cost, and further reduce the number of assembly process has the effect of preventing various defects.

What has been described above is just one embodiment for implementing the drum and the spider coupling structure of the drum washing machine according to the present invention, the present invention is not limited to the above embodiment, as claimed in the following claims Without departing from the gist of the present invention, anyone of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (6)

delete delete One side is opened and at the same time a plurality of through-holes are formed in the circumferential surface to form a cylindrical body, the other side of the main body of the drum drum and spider consisting of a drum formed by closing the bottom, and the spider fixed to the bottom In the bonding structure of The bottom and the spider are insert injected together, The spider has a through-hole is formed so that the rotating shaft is coupled to the center, the outer side of the through hole is formed to include a disc body protruding a predetermined height and a circular partition wall, and at least three extensions extending a predetermined length to the outside of the disc body; , The spider is a drum and spider coupling structure of the drum washing machine, characterized in that the inner region of the circular partition wall and the opposite region corresponding to the inner region is exposed to the outside of the bottom portion. 4. The drum and spider coupling structure as claimed in claim 3, wherein the spider has the extension portion wrapped with the bottom portion. 4. The drum of claim 3, wherein the spider has at least one of a plurality of radial partitions or columnar partitions formed in a disc body or extension outside of the circular partition wall so as to increase coupling force with a bottom part. And spider coupling structure. The drum and spider coupling structure of claim 3, wherein the spider has a rectangular through hole and a through hole penetrating therethrough such that coupling force with the bottom is increased.

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